1 00:00:13,190 --> 00:00:10,970 I have had many requests I have brought 2 00:00:15,829 --> 00:00:13,200 my family before to pass SSC meetings 3 00:00:18,050 --> 00:00:15,839 and I have had no doubt I would say 4 00:00:20,810 --> 00:00:18,060 about two dozen requests from people 5 00:00:23,870 --> 00:00:20,820 asking me where's my wife where are my 6 00:00:25,400 --> 00:00:23,880 kids and so I got on the phone I called 7 00:00:27,050 --> 00:00:25,410 up my wife and I said I think you're 8 00:00:28,939 --> 00:00:27,060 gonna need to send a picture she goes 9 00:00:30,589 --> 00:00:28,949 I'll send the beach picture I said okay 10 00:00:34,280 --> 00:00:30,599 that'll be fine I'll put it at the front 11 00:00:36,440 --> 00:00:34,290 so therefore here they are there's my 12 00:00:38,780 --> 00:00:36,450 son Gregory five years old in the middle 13 00:00:41,360 --> 00:00:38,790 hiding there's Benedict being held by my 14 00:00:43,639 --> 00:00:41,370 wife Karen and there's Lydia at one and 15 00:00:45,350 --> 00:00:43,649 a half room I'm holding right there this 16 00:00:46,639 --> 00:00:45,360 is I am from Florida for those of you 17 00:00:48,290 --> 00:00:46,649 are not aware so this is at the beach 18 00:00:51,529 --> 00:00:48,300 and for those of you who are from 19 00:00:55,970 --> 00:00:51,539 Colorado this is called an ocean behind 20 00:00:57,799 --> 00:00:55,980 me it's a big body of water so we've got 21 00:01:01,310 --> 00:00:57,809 lots of beaches there and so I just 22 00:01:03,709 --> 00:01:01,320 wanted to share that with you as at the 23 00:01:05,990 --> 00:01:03,719 beginning of the talk now let's see 24 00:01:08,240 --> 00:01:06,000 which one there we go 25 00:01:11,510 --> 00:01:08,250 the talk challenging the insect 26 00:01:13,100 --> 00:01:11,520 olfaction paradigm new evidence some of 27 00:01:14,420 --> 00:01:13,110 you probably knew that I was going to be 28 00:01:16,730 --> 00:01:14,430 talking about insect old-fashioned this 29 00:01:18,560 --> 00:01:16,740 is specifically what we study more so 30 00:01:21,050 --> 00:01:18,570 than anything else at the laboratory 31 00:01:22,999 --> 00:01:21,060 although we do study other parts of bio 32 00:01:25,160 --> 00:01:23,009 electromagnetics but having the 33 00:01:26,570 --> 00:01:25,170 background in entomology this has really 34 00:01:29,359 --> 00:01:26,580 forced me in order to go after the 35 00:01:30,770 --> 00:01:29,369 insects more so and it was a number of 36 00:01:32,630 --> 00:01:30,780 years ago that I realized that there 37 00:01:34,760 --> 00:01:32,640 were problems as many of us have found 38 00:01:37,069 --> 00:01:34,770 uncertain paradigms in the insect 39 00:01:40,370 --> 00:01:37,079 olfaction paradigm was one of them now I 40 00:01:42,740 --> 00:01:40,380 did present in 2009 and in 2009 I talked 41 00:01:44,240 --> 00:01:42,750 about the temporal evidence against the 42 00:01:46,880 --> 00:01:44,250 current theory of insect olfaction 43 00:01:49,130 --> 00:01:46,890 however now three years later there are 44 00:01:51,679 --> 00:01:49,140 some new evidence to report therefore 45 00:01:54,230 --> 00:01:51,689 I'm going to first introduce what the 46 00:01:56,450 --> 00:01:54,240 insect olfaction paradigm is so that all 47 00:01:57,530 --> 00:01:56,460 of you are all up on the same boat and 48 00:01:59,929 --> 00:01:57,540 you're understanding where I'm coming 49 00:02:02,030 --> 00:01:59,939 from and then I'm going to introduce the 50 00:02:05,149 --> 00:02:02,040 new evidence that you can see and follow 51 00:02:08,559 --> 00:02:05,159 along why I have some difficulties with 52 00:02:10,639 --> 00:02:08,569 that with that particular paradigm 53 00:02:12,110 --> 00:02:10,649 olfaction and insects how is it 54 00:02:14,059 --> 00:02:12,120 accomplished most of us know that 55 00:02:17,390 --> 00:02:14,069 insects smell what they're 56 00:02:19,910 --> 00:02:17,400 we do not know that instinctively so 57 00:02:22,099 --> 00:02:19,920 we've got a large by pectin ADA antenna 58 00:02:24,110 --> 00:02:22,109 from the Saturn eyed moth off to the 59 00:02:25,550 --> 00:02:24,120 left we have another clear wing to moth 60 00:02:28,339 --> 00:02:25,560 off to the right but you can see the 61 00:02:30,259 --> 00:02:28,349 antennae are very prominent and that is 62 00:02:32,330 --> 00:02:30,269 how almost all insects smelled I know 63 00:02:34,280 --> 00:02:32,340 there's some smelling and tasting on the 64 00:02:36,890 --> 00:02:34,290 feet and the wings and even on the back 65 00:02:39,170 --> 00:02:36,900 end of the insect but for the most part 66 00:02:41,990 --> 00:02:39,180 odorants are picked up by the antenna 67 00:02:43,849 --> 00:02:42,000 now if we zoom in on the antenna we can 68 00:02:45,589 --> 00:02:43,859 see that there are some small structures 69 00:02:47,960 --> 00:02:45,599 and I want to point those out because 70 00:02:50,509 --> 00:02:47,970 it's not the antenna proper that is 71 00:02:54,759 --> 00:02:50,519 necessarily involved in insect olfaction 72 00:02:57,140 --> 00:02:54,769 we have these very tiny sencilla 73 00:02:58,759 --> 00:02:57,150 sometimes called hairs sometimes they're 74 00:03:01,309 --> 00:02:58,769 called tricloid scintilla which means a 75 00:03:04,399 --> 00:03:01,319 hair sencilla and these are the actual 76 00:03:06,050 --> 00:03:04,409 structures which are involved in insect 77 00:03:09,530 --> 00:03:06,060 old-fashion this is what they're 78 00:03:12,080 --> 00:03:09,540 actually using to detect the odorants in 79 00:03:14,420 --> 00:03:12,090 some case a pheromone so I've zoomed in 80 00:03:16,009 --> 00:03:14,430 on one just one of these hairs and these 81 00:03:18,229 --> 00:03:16,019 things are microscopic you can't seem 82 00:03:19,939 --> 00:03:18,239 with the naked eye but if we zoom in on 83 00:03:21,770 --> 00:03:19,949 this we see this is these are the cells 84 00:03:24,140 --> 00:03:21,780 underneath there's a truck gent or Majin 85 00:03:26,059 --> 00:03:24,150 selfie kijun cell three cells that are 86 00:03:27,920 --> 00:03:26,069 involved in the formation of the hair 87 00:03:30,229 --> 00:03:27,930 and the socket up above we have 88 00:03:31,699 --> 00:03:30,239 something sticking up above the cuticle 89 00:03:33,979 --> 00:03:31,709 which is the hair light portion that you 90 00:03:37,039 --> 00:03:33,989 see right there there are some holes in 91 00:03:38,990 --> 00:03:37,049 the top these pores are very tiny some 92 00:03:42,050 --> 00:03:39,000 are on the order of 10 to 15 nanometers 93 00:03:43,789 --> 00:03:42,060 can't see those either and the pheromone 94 00:03:45,789 --> 00:03:43,799 in these case the long-chain carbon 95 00:03:47,809 --> 00:03:45,799 molecules which is indicative of most 96 00:03:49,699 --> 00:03:47,819 lepidopteran pheromones those being the 97 00:03:51,800 --> 00:03:49,709 butterflies and the moss would then 98 00:03:54,439 --> 00:03:51,810 enter the holes and make their way 99 00:03:57,229 --> 00:03:54,449 through this watery matrix right here 100 00:03:59,539 --> 00:03:57,239 and actually impinge upon a dendrite so 101 00:04:01,610 --> 00:03:59,549 there's a dendrite extending up into the 102 00:04:05,869 --> 00:04:01,620 hair right there which is the final 103 00:04:07,129 --> 00:04:05,879 detector of the insect pheromone what 104 00:04:10,069 --> 00:04:07,139 I'm going to do is I'm going to zoom in 105 00:04:11,990 --> 00:04:10,079 right now so I'm zooming in adjust this 106 00:04:13,849 --> 00:04:12,000 part so I don't want to talk about the 107 00:04:17,420 --> 00:04:13,859 entire hair but I do want to focus on 108 00:04:20,390 --> 00:04:17,430 the pores the outside cuticle and the 109 00:04:22,310 --> 00:04:20,400 dendrites on the inside let's continue 110 00:04:24,140 --> 00:04:22,320 this is now the close-up that I just 111 00:04:27,530 --> 00:04:24,150 described to you with that red 112 00:04:30,290 --> 00:04:27,540 rectangular box now we can see the 113 00:04:32,060 --> 00:04:30,300 said cuticle those blue dots are what 114 00:04:33,950 --> 00:04:32,070 I'm going to call the pheromone these 115 00:04:35,840 --> 00:04:33,960 yellow dots of the pheromone degrading 116 00:04:37,640 --> 00:04:35,850 enzymes they eat up the pheromone first 117 00:04:39,170 --> 00:04:37,650 chance they get they're very good at and 118 00:04:41,060 --> 00:04:39,180 they fart are found on the outside in 119 00:04:42,620 --> 00:04:41,070 addition they're also found on the 120 00:04:44,270 --> 00:04:42,630 inside so any pheromone that's going to 121 00:04:46,100 --> 00:04:44,280 get inside is also going to get picked 122 00:04:48,410 --> 00:04:46,110 off by the pheromone degrading enzymes 123 00:04:50,210 --> 00:04:48,420 and they're working very very hard in 124 00:04:54,950 --> 00:04:50,220 order to eat the pheromone as quickly as 125 00:04:57,200 --> 00:04:54,960 possible now what happens is because the 126 00:05:00,230 --> 00:04:57,210 pheromone cannot cross this watery 127 00:05:03,620 --> 00:05:00,240 matrix because it is a long-chain fatty 128 00:05:05,930 --> 00:05:03,630 acid oil and water don't mix therefore 129 00:05:07,760 --> 00:05:05,940 it has to pick off a ride from another 130 00:05:10,310 --> 00:05:07,770 molecule this other molecule is called a 131 00:05:13,520 --> 00:05:10,320 binding protein this binding protein 132 00:05:16,910 --> 00:05:13,530 picks up the pheromone at the pore just 133 00:05:19,970 --> 00:05:16,920 like that it travels the cross via 134 00:05:21,560 --> 00:05:19,980 diffusion makes its way to the dimer 135 00:05:24,170 --> 00:05:21,570 receptor we actually know that the 136 00:05:27,440 --> 00:05:24,180 receptor is composed of two proteins not 137 00:05:30,740 --> 00:05:27,450 just one and this dimer receptor then 138 00:05:34,610 --> 00:05:30,750 somehow is able to pick and recognize 139 00:05:37,580 --> 00:05:34,620 the pheromone or the pheromone pheromone 140 00:05:39,280 --> 00:05:37,590 binding protein complex it is not quite 141 00:05:41,750 --> 00:05:39,290 clear whether or not there is a 142 00:05:44,330 --> 00:05:41,760 separation of the pheromone or whether 143 00:05:46,340 --> 00:05:44,340 or not they actually are detected in the 144 00:05:49,760 --> 00:05:46,350 complex and this separation if it does 145 00:05:51,830 --> 00:05:49,770 occur occurs at a pH of five otherwise 146 00:05:53,570 --> 00:05:51,840 there will be no breaking of the bond 147 00:05:56,720 --> 00:05:53,580 between the binding protein and the 148 00:05:59,270 --> 00:05:56,730 pheromone so it's to show you what the 149 00:06:00,860 --> 00:05:59,280 relative sizes of the binding protein 150 00:06:02,810 --> 00:06:00,870 versus the pheromone the binding protein 151 00:06:05,510 --> 00:06:02,820 is much bigger it's about sixty six 152 00:06:07,700 --> 00:06:05,520 times bigger assuming a volumetric mass 153 00:06:09,830 --> 00:06:07,710 of a sphere and they're not spheres I 154 00:06:12,080 --> 00:06:09,840 understand that that the pheromone 155 00:06:14,120 --> 00:06:12,090 binding protein is roughly globular the 156 00:06:17,690 --> 00:06:14,130 pheromone is not usually circular but I 157 00:06:19,850 --> 00:06:17,700 actually drew this to scale so that you 158 00:06:21,020 --> 00:06:19,860 can see the size difference between them 159 00:06:23,150 --> 00:06:21,030 and that if the pheromone does not 160 00:06:25,040 --> 00:06:23,160 escape remember that part of it is going 161 00:06:27,530 --> 00:06:25,050 to be bound to the binding protein and 162 00:06:30,110 --> 00:06:27,540 it will not be able to be necessarily 163 00:06:32,780 --> 00:06:30,120 detected so we've got a dilemma right 164 00:06:35,030 --> 00:06:32,790 here is the pheromone alone being 165 00:06:37,010 --> 00:06:35,040 detected at the dendritic membrane or is 166 00:06:39,350 --> 00:06:37,020 the pheromone pheromone binding protein 167 00:06:41,570 --> 00:06:39,360 complex in other words it doesn't break 168 00:06:42,830 --> 00:06:41,580 up there are two fields of thought 169 00:06:44,330 --> 00:06:42,840 I know a number of American researchers 170 00:06:45,740 --> 00:06:44,340 that feel the first I've talked to 171 00:06:49,159 --> 00:06:45,750 German researchers who believe in the 172 00:06:51,409 --> 00:06:49,169 second but if the receptor detects the 173 00:06:53,689 --> 00:06:51,419 pheromone shape then obviously the 174 00:06:55,189 --> 00:06:53,699 pheromone alone needs to do that however 175 00:06:56,360 --> 00:06:55,199 we have a different situation if the 176 00:07:00,619 --> 00:06:56,370 Germans are correct 177 00:07:02,929 --> 00:07:00,629 complex then binds with it the receptor 178 00:07:11,839 --> 00:07:02,939 detects the whole complex and identifies 179 00:07:13,939 --> 00:07:11,849 the pheromone based on this complex this 180 00:07:16,309 --> 00:07:13,949 is the summary slide that I gave back in 181 00:07:17,510 --> 00:07:16,319 2009 I wanted to jog your memory for 182 00:07:21,770 --> 00:07:17,520 those of you who were there with me in 183 00:07:25,240 --> 00:07:21,780 2009 I had expressed that the temporal 184 00:07:29,119 --> 00:07:25,250 evidence did did show that it's actually 185 00:07:31,999 --> 00:07:29,129 impossible for the pheromone or any 186 00:07:35,959 --> 00:07:32,009 odorant in order to reach the dendritic 187 00:07:38,480 --> 00:07:35,969 membrane in time in order to explain 188 00:07:40,490 --> 00:07:38,490 insect olfaction time to adhere to the 189 00:07:42,890 --> 00:07:40,500 sencilla zero milliseconds time to 190 00:07:44,959 --> 00:07:42,900 diffuse through the wax later takes 191 00:07:47,149 --> 00:07:44,969 between minutes and hours time to 192 00:07:49,070 --> 00:07:47,159 diffuse through the pores nothing's been 193 00:07:50,779 --> 00:07:49,080 published it's unknown time to actually 194 00:07:52,969 --> 00:07:50,789 bind the pheromone only about one 195 00:07:55,670 --> 00:07:52,979 millisecond time to transport the 196 00:07:58,070 --> 00:07:55,680 pheromone only if it's a perfect watery 197 00:07:59,269 --> 00:07:58,080 matrix diffusion laws say that it's 198 00:08:01,879 --> 00:07:59,279 going to take a minimum of 12 199 00:08:04,899 --> 00:08:01,889 milliseconds time to dissociate from the 200 00:08:08,360 --> 00:08:04,909 pheromone 9 milliseconds if a pH of 5 201 00:08:09,950 --> 00:08:08,370 100 seconds if we don't have that pH of 202 00:08:12,170 --> 00:08:09,960 5 and finally time to activate the 203 00:08:14,180 --> 00:08:12,180 receptor less than one millisecond it's 204 00:08:16,399 --> 00:08:14,190 actually on the order of Pico seconds so 205 00:08:18,589 --> 00:08:16,409 if you add this all up you can see that 206 00:08:20,480 --> 00:08:18,599 it's impossible to reach the goal of 1 207 00:08:22,850 --> 00:08:20,490 to 10 milliseconds why is it 1 to 10 208 00:08:25,670 --> 00:08:22,860 milliseconds because we know the insect 209 00:08:28,159 --> 00:08:25,680 can smell within about 1 to 10 210 00:08:30,589 --> 00:08:28,169 milliseconds so if you cannot explain 211 00:08:32,689 --> 00:08:30,599 how the pheromone gets there then how is 212 00:08:34,880 --> 00:08:32,699 detection occurring and we know very 213 00:08:38,750 --> 00:08:34,890 reliably that it's occurring in less 214 00:08:40,880 --> 00:08:38,760 than 10 milliseconds for your biologist 215 00:08:43,040 --> 00:08:40,890 I want to put this into perspective for 216 00:08:43,969 --> 00:08:43,050 your biologists or maybe neurobiologist 217 00:08:48,230 --> 00:08:43,979 I know there's a couple of you in the 218 00:08:49,519 --> 00:08:48,240 audience right now these synapse if we 219 00:08:52,100 --> 00:08:49,529 take a look at the time course of events 220 00:08:55,610 --> 00:08:52,110 of a neurotransmitter as it goes across 221 00:08:58,250 --> 00:08:55,620 the synapse it takes between 3.3 and 222 00:09:00,710 --> 00:08:58,260 five point three milliseconds for 223 00:09:02,900 --> 00:09:00,720 synaptic transmission to occur for the 224 00:09:05,140 --> 00:09:02,910 process of that to occur the insect 225 00:09:08,240 --> 00:09:05,150 pheromone is on the same order of 226 00:09:10,790 --> 00:09:08,250 detection on a timescale as a synapse 227 00:09:12,140 --> 00:09:10,800 the synapse and for your neurobiologist 228 00:09:14,870 --> 00:09:12,150 it would be a type two acetylcholine 229 00:09:18,140 --> 00:09:14,880 receptor the synapse is running about 230 00:09:20,030 --> 00:09:18,150 twenty nanometers the insects and Scylla 231 00:09:22,700 --> 00:09:20,040 the pheromone has to travel between 232 00:09:24,740 --> 00:09:22,710 eleven hundred and fifty to two thousand 233 00:09:27,710 --> 00:09:24,750 nanometers so there's a very big 234 00:09:30,170 --> 00:09:27,720 difference in space that needs to be 235 00:09:32,360 --> 00:09:30,180 traveled and therefore to assume that 236 00:09:35,829 --> 00:09:32,370 the synapse and thus in Scylla are 237 00:09:40,519 --> 00:09:35,839 smelling at the same time is hard 238 00:09:42,320 --> 00:09:40,529 scientifically to believe so what else 239 00:09:43,400 --> 00:09:42,330 is going on some of you know the 240 00:09:44,930 --> 00:09:43,410 direction that I'm heading into right 241 00:09:47,180 --> 00:09:44,940 now because obviously I'm involved in 242 00:09:48,740 --> 00:09:47,190 bio electro magnetics so is there a 243 00:09:51,769 --> 00:09:48,750 possibility that there is something else 244 00:09:54,079 --> 00:09:51,779 going on besides the classic diffusion 245 00:09:56,540 --> 00:09:54,089 lock-and-key method which has talked 246 00:09:58,700 --> 00:09:56,550 about in the textbooks and an insect 247 00:10:02,449 --> 00:09:58,710 physiology courses that are taught in 248 00:10:04,220 --> 00:10:02,459 departments of entomology so part of the 249 00:10:06,620 --> 00:10:04,230 research that is conducted our 250 00:10:08,630 --> 00:10:06,630 laboratory is in literature reviews this 251 00:10:10,670 --> 00:10:08,640 is a forgotten science in my opinion 252 00:10:12,380 --> 00:10:10,680 because many people feel that science is 253 00:10:14,390 --> 00:10:12,390 based upon producing tables and graphs 254 00:10:17,300 --> 00:10:14,400 and figures and and doing all that kind 255 00:10:18,470 --> 00:10:17,310 of stuff when in actuality canvassing 256 00:10:19,850 --> 00:10:18,480 the literature especially when you're 257 00:10:22,970 --> 00:10:19,860 trying to come up with a new theory of 258 00:10:26,140 --> 00:10:22,980 insect olfaction becomes necessary so in 259 00:10:31,550 --> 00:10:26,150 reviewing things I ran across the paper 260 00:10:34,640 --> 00:10:31,560 from Kyle from Germany in 1984 as well 261 00:10:38,570 --> 00:10:34,650 as white Asik and Leal Walter Lee ELLs 262 00:10:41,329 --> 00:10:38,580 at UC in Davis in 1999 and both of them 263 00:10:44,540 --> 00:10:41,339 found using three different cationic 264 00:10:46,130 --> 00:10:44,550 markers that there are fixed negative 265 00:10:47,600 --> 00:10:46,140 charges present on the dendritic 266 00:10:50,540 --> 00:10:47,610 membrane of the sencilla 267 00:10:53,600 --> 00:10:50,550 well this is a useful information to 268 00:10:56,000 --> 00:10:53,610 start if I have fixed negative charges 269 00:10:57,260 --> 00:10:56,010 that are unmoving they're fixed then I 270 00:10:59,060 --> 00:10:57,270 might be able to play around with this 271 00:11:01,010 --> 00:10:59,070 from an electromagnetic standpoint to 272 00:11:05,510 --> 00:11:01,020 see what's possible and what's 273 00:11:07,490 --> 00:11:05,520 impossible so when I saw this paper I 274 00:11:09,560 --> 00:11:07,500 actually had a flashback back to my 275 00:11:10,880 --> 00:11:09,570 senior year at Cornell University 276 00:11:13,190 --> 00:11:10,890 I'm not talking about some of the 277 00:11:15,770 --> 00:11:13,200 flashbacks that you may have when you go 278 00:11:18,110 --> 00:11:15,780 back to your senior year at whatever 279 00:11:19,940 --> 00:11:18,120 college you happen to attend but when I 280 00:11:22,720 --> 00:11:19,950 was at Cornell I did a senior project in 281 00:11:24,890 --> 00:11:22,730 an involved SDS page SDS page stands for 282 00:11:27,140 --> 00:11:24,900 sodium dodecyl sulfate polyacrylamide 283 00:11:29,410 --> 00:11:27,150 gel electrophoresis and what this 284 00:11:33,200 --> 00:11:29,420 process does is it separates proteins 285 00:11:35,120 --> 00:11:33,210 now it separates proteins by what what 286 00:11:36,560 --> 00:11:35,130 you do is you have the proteins the 287 00:11:38,060 --> 00:11:36,570 process of separating them I'm not going 288 00:11:40,640 --> 00:11:38,070 to go into but you then coat them with 289 00:11:41,930 --> 00:11:40,650 negative charges and the more negative 290 00:11:44,720 --> 00:11:41,940 charges they have on them the bigger 291 00:11:46,670 --> 00:11:44,730 than the the binding protein is and so 292 00:11:49,160 --> 00:11:46,680 that's the idea of how to separate them 293 00:11:51,380 --> 00:11:49,170 so what we do is we place the proteins 294 00:11:54,890 --> 00:11:51,390 into these little wells right here on 295 00:11:57,530 --> 00:11:54,900 the top and they then fall through once 296 00:11:59,510 --> 00:11:57,540 we create an electrical charge so we 297 00:12:01,250 --> 00:11:59,520 have a negative electrode at the top we 298 00:12:03,920 --> 00:12:01,260 have a positive electrode at the bottom 299 00:12:05,600 --> 00:12:03,930 they're coated with a negatively charged 300 00:12:07,610 --> 00:12:05,610 protein so they're going to be repelled 301 00:12:09,650 --> 00:12:07,620 by the negative electrode when we turn 302 00:12:10,940 --> 00:12:09,660 it on they're going to be attracted to 303 00:12:13,730 --> 00:12:10,950 the positive electrode and they will 304 00:12:15,500 --> 00:12:13,740 then move down in the straight direction 305 00:12:18,170 --> 00:12:15,510 and they will then create bands and 306 00:12:20,900 --> 00:12:18,180 these bands will separate the proteins 307 00:12:22,370 --> 00:12:20,910 according to charge but according to our 308 00:12:24,200 --> 00:12:22,380 understanding of it they're actually 309 00:12:26,680 --> 00:12:24,210 being separated according to size 310 00:12:29,030 --> 00:12:26,690 because that's what we're looking for so 311 00:12:31,400 --> 00:12:29,040 understanding how this process works and 312 00:12:32,720 --> 00:12:31,410 realizing the research that I just 313 00:12:34,220 --> 00:12:32,730 showed you before I thought there's 314 00:12:37,850 --> 00:12:34,230 something that we might be able to play 315 00:12:41,660 --> 00:12:37,860 with here if I've got fixed negative 316 00:12:43,220 --> 00:12:41,670 charges on the dendritic membrane hmmm 317 00:12:46,250 --> 00:12:43,230 and the current theory says that the 318 00:12:48,830 --> 00:12:46,260 binding protein gets to that and I just 319 00:12:51,230 --> 00:12:48,840 spent an entire presentation in 2009 320 00:12:52,460 --> 00:12:51,240 saying that there's no way using the 321 00:12:54,920 --> 00:12:52,470 laws of diffusion that it's going to 322 00:12:56,930 --> 00:12:54,930 make it in time could there be something 323 00:12:58,520 --> 00:12:56,940 else going on I've actually spent a lot 324 00:13:00,650 --> 00:12:58,530 of time trying to ask people is there 325 00:13:02,150 --> 00:13:00,660 something else that I'm missing so when 326 00:13:03,620 --> 00:13:02,160 this idea came to me I thought I'm gonna 327 00:13:05,630 --> 00:13:03,630 go with it right now because if I got a 328 00:13:08,080 --> 00:13:05,640 negatively charged membrane and I can 329 00:13:12,230 --> 00:13:08,090 show that the binding proteins are 330 00:13:14,900 --> 00:13:12,240 positive then I've now got electrostatic 331 00:13:16,640 --> 00:13:14,910 attraction occurring between the binding 332 00:13:18,830 --> 00:13:16,650 protein which we know has to get to the 333 00:13:20,270 --> 00:13:18,840 dendritic membrane whether it separates 334 00:13:21,800 --> 00:13:20,280 the pheromone or not it's not important 335 00:13:23,269 --> 00:13:21,810 I just need to get that binding protein 336 00:13:25,280 --> 00:13:23,279 to the dendritic 337 00:13:26,720 --> 00:13:25,290 brain with my fixed negative charges 338 00:13:29,749 --> 00:13:26,730 just like sds-page 339 00:13:33,530 --> 00:13:29,759 I may be golden how do I do that 340 00:13:35,509 --> 00:13:33,540 mm-hmm only analyzed amino acids or 341 00:13:37,129 --> 00:13:35,519 proteins I should say you're taking a 342 00:13:38,569 --> 00:13:37,139 look at 20 amino acids there's only 20 343 00:13:40,879 --> 00:13:38,579 amino acids that we need to worry about 344 00:13:44,360 --> 00:13:40,889 these 20 amino acids are listed here 345 00:13:47,059 --> 00:13:44,370 with their three-letter code as well as 346 00:13:48,470 --> 00:13:47,069 their single letter code and obviously 347 00:13:49,970 --> 00:13:48,480 this is a lot to analyze I don't want to 348 00:13:51,860 --> 00:13:49,980 analyze all these so what I'm gonna do 349 00:13:54,049 --> 00:13:51,870 is I'm just gonna analyze some of them I 350 00:13:56,360 --> 00:13:54,059 want to analyze the five that have a 351 00:13:58,009 --> 00:13:56,370 charge associated with them and it's 352 00:13:59,299 --> 00:13:58,019 those five then we're gonna focus on and 353 00:14:00,980 --> 00:13:59,309 just for the purposes of this 354 00:14:04,819 --> 00:14:00,990 presentation going to ignore the other 355 00:14:08,079 --> 00:14:04,829 15 so I've got those five aspartic acid 356 00:14:11,239 --> 00:14:08,089 glutamic acid both of them negative 357 00:14:14,960 --> 00:14:11,249 histidine arginine lysine all three of 358 00:14:17,030 --> 00:14:14,970 them positive now if you play the odds 359 00:14:19,160 --> 00:14:17,040 if you like to play in Vegas and you 360 00:14:21,650 --> 00:14:19,170 want to play the odds I'm looking to get 361 00:14:23,749 --> 00:14:21,660 positively binding proteins I've got 362 00:14:26,119 --> 00:14:23,759 three positives and two negatives 363 00:14:29,420 --> 00:14:26,129 assuming an equal distribution of the 364 00:14:31,040 --> 00:14:29,430 amino acids I mean this this is just a 365 00:14:32,900 --> 00:14:31,050 win-win situation so I could say all I 366 00:14:34,579 --> 00:14:32,910 got to do is add this up and I'm gonna 367 00:14:37,280 --> 00:14:34,589 be able to show that are positively 368 00:14:39,910 --> 00:14:37,290 charged binding proteins indeed might be 369 00:14:44,299 --> 00:14:39,920 attracted and therefore I could speed up 370 00:14:45,619 --> 00:14:44,309 unnaturally the process of diffusion so 371 00:14:47,360 --> 00:14:45,629 how do you do this you obtain the amino 372 00:14:50,480 --> 00:14:47,370 acid sequence for a given binding 373 00:14:52,220 --> 00:14:50,490 protein on the NCBI website next you 374 00:14:54,199 --> 00:14:52,230 plug in the amino acid sequence in order 375 00:14:55,790 --> 00:14:54,209 to determine the signal peptide all 376 00:14:57,139 --> 00:14:55,800 peptides when they're produced in the 377 00:14:59,420 --> 00:14:57,149 nuclear membrane have a little bit of 378 00:15:00,619 --> 00:14:59,430 extra stuff on them and after they pass 379 00:15:02,900 --> 00:15:00,629 out of the nuclear membrane before 380 00:15:06,079 --> 00:15:02,910 they're activated they're cleaved and 381 00:15:07,519 --> 00:15:06,089 that signal peptide is cleaved off so I 382 00:15:09,019 --> 00:15:07,529 wanted to determine what the signal 383 00:15:11,809 --> 00:15:09,029 peptide was so that I knew what the 384 00:15:14,419 --> 00:15:11,819 active form of the binding protein was 385 00:15:16,460 --> 00:15:14,429 then I needed to determine the number of 386 00:15:18,079 --> 00:15:16,470 each charged amino acid add up the 387 00:15:21,259 --> 00:15:18,089 number of positive and negative charges 388 00:15:23,150 --> 00:15:21,269 simple arithmetic and then finally 389 00:15:26,780 --> 00:15:23,160 calculate the net charge on the binding 390 00:15:28,309 --> 00:15:26,790 protein so let's start there I started 391 00:15:30,019 --> 00:15:28,319 analyzing binding proteins and there's a 392 00:15:31,369 --> 00:15:30,029 lot of them out there right now these 393 00:15:33,049 --> 00:15:31,379 are the pheromone binding protein 394 00:15:34,819 --> 00:15:33,059 charges on the Saturn I at Moss the 395 00:15:36,030 --> 00:15:34,829 Saturn eye and muscle those large big 396 00:15:38,879 --> 00:15:36,040 Maus deluna mas 397 00:15:40,620 --> 00:15:38,889 propia Polyphemus and everyone likes to 398 00:15:42,120 --> 00:15:40,630 study them so you take a look at the 399 00:15:44,069 --> 00:15:42,130 Polyphemus moth it's got a pheromone 400 00:15:45,930 --> 00:15:44,079 binding protein one pheromone binding 401 00:15:48,090 --> 00:15:45,940 protein two for animal binding protein 402 00:15:50,610 --> 00:15:48,100 three continue on down the various 403 00:15:52,559 --> 00:15:50,620 species of saturn iods and you could see 404 00:15:56,939 --> 00:15:52,569 that i'm in trouble right from the 405 00:15:59,519 --> 00:15:56,949 get-go as a matter of fact only three of 406 00:16:04,559 --> 00:15:59,529 the sixteen binding proteins on this 407 00:16:06,600 --> 00:16:04,569 slide are positively charged I'm gonna 408 00:16:08,610 --> 00:16:06,610 keep going I was like oh there's got to 409 00:16:10,410 --> 00:16:08,620 be something going on here so I keep 410 00:16:12,660 --> 00:16:10,420 looking I look at other Lepidoptera not 411 00:16:14,730 --> 00:16:12,670 the Saturn iets all the species listed 412 00:16:16,199 --> 00:16:14,740 there their various binding proteins and 413 00:16:18,629 --> 00:16:16,209 there are more than one associated with 414 00:16:21,540 --> 00:16:18,639 each one negative negative negative as a 415 00:16:25,139 --> 00:16:21,550 matter of fact I have only got 2 out of 416 00:16:28,370 --> 00:16:25,149 15 that are positively charged I'm very 417 00:16:30,689 --> 00:16:28,380 competitive so I keep going mmm I 418 00:16:32,189 --> 00:16:30,699 analyzed more on the Lepidoptera as a 419 00:16:34,259 --> 00:16:32,199 matter of fact we even had two forms of 420 00:16:36,540 --> 00:16:34,269 Manduca sexta pheromone binding protein 421 00:16:38,100 --> 00:16:36,550 2 I analyzed both and I said well one 422 00:16:42,809 --> 00:16:38,110 might be right I don't know both will be 423 00:16:45,389 --> 00:16:42,819 right analyze those as well and 1 out of 424 00:16:48,600 --> 00:16:45,399 16 was positively charged 425 00:16:51,000 --> 00:16:48,610 I continue to Lepidoptera I've got 1 out 426 00:16:52,889 --> 00:16:51,010 of 14 I think you can see where I'm 427 00:16:54,930 --> 00:16:52,899 going obviously the frustration is 428 00:16:57,990 --> 00:16:54,940 beginning and I feel that Nobel Prize 429 00:17:00,059 --> 00:16:58,000 just being pulled out of my hand so 430 00:17:01,920 --> 00:17:00,069 there is actually Austrian Ubel Alice 431 00:17:03,809 --> 00:17:01,930 has a number of strains as two strains 432 00:17:06,090 --> 00:17:03,819 associated with it different receptivity 433 00:17:07,559 --> 00:17:06,100 to two different pheromone 434 00:17:09,299 --> 00:17:07,569 concentrations so I analyzed both of 435 00:17:12,149 --> 00:17:09,309 them I was getting no help there either 436 00:17:14,220 --> 00:17:12,159 zero out of ten were positive I took a 437 00:17:17,010 --> 00:17:14,230 look at some more zero out of sixteen 438 00:17:19,049 --> 00:17:17,020 were positive then I moved on to the 439 00:17:23,730 --> 00:17:19,059 Hymenoptera which are the wasps bees and 440 00:17:25,079 --> 00:17:23,740 ants and so I was not only was I not 441 00:17:27,120 --> 00:17:25,089 getting the positives that I was looking 442 00:17:28,710 --> 00:17:27,130 for but when I moved to the Hymenoptera 443 00:17:32,070 --> 00:17:28,720 we started getting some high level 444 00:17:34,140 --> 00:17:32,080 negative 12 negative 14 negative we got 445 00:17:35,430 --> 00:17:34,150 negative double digits so you were no 446 00:17:39,149 --> 00:17:35,440 longer dealing what we had in the 447 00:17:42,960 --> 00:17:39,159 Lepidoptera 12 12 really highly charged 448 00:17:46,560 --> 00:17:42,970 negatively charged binding proteins the 449 00:17:48,990 --> 00:17:46,570 scarab beetles scarab beetles also had a 450 00:17:49,560 --> 00:17:49,000 pretty consistent high there was one at 451 00:17:55,610 --> 00:17:49,570 negative 452 00:17:57,900 --> 00:17:55,620 exception of this one which is at zero 453 00:17:59,760 --> 00:17:57,910 and we charged other groups I took a 454 00:18:02,340 --> 00:17:59,770 look at Drosophila melanogaster why not 455 00:18:03,690 --> 00:18:02,350 everyone else does and I had a little 456 00:18:05,100 --> 00:18:03,700 bit of confusion there because they 457 00:18:06,330 --> 00:18:05,110 don't know what the binding protein is 458 00:18:08,640 --> 00:18:06,340 because they really don't have a 459 00:18:12,539 --> 00:18:08,650 pheromone but they have a pheromone 460 00:18:14,880 --> 00:18:12,549 binding protein related protein yeah we 461 00:18:16,500 --> 00:18:14,890 love acronyms don't we as scientists so 462 00:18:18,240 --> 00:18:16,510 I don't quite know what they are but I 463 00:18:18,720 --> 00:18:18,250 analyzed them I wasn't getting any help 464 00:18:22,260 --> 00:18:18,730 there 465 00:18:24,390 --> 00:18:22,270 for me a regina calif or deer on the 466 00:18:26,539 --> 00:18:24,400 side of the road those maggots negative 467 00:18:29,580 --> 00:18:26,549 14 that's considered to be in the family 468 00:18:31,140 --> 00:18:29,590 cockroach here negative 3 and a thrips 469 00:18:33,810 --> 00:18:31,150 attacking your flowers coming at 470 00:18:35,510 --> 00:18:33,820 negative 10 again i'm in trouble they're 471 00:18:37,919 --> 00:18:35,520 not doing too well let us summarize 472 00:18:40,919 --> 00:18:37,929 pheromone binding protein charge summary 473 00:18:43,890 --> 00:18:40,929 we analyzed over 150 binding proteins 474 00:18:46,350 --> 00:18:43,900 but we only counted the proteins with a 475 00:18:48,450 --> 00:18:46,360 known signal peptide if we could not 476 00:18:53,789 --> 00:18:48,460 calculate the signal peptide we let it 477 00:18:55,470 --> 00:18:53,799 go of the 150 that we had nine percent 478 00:18:57,990 --> 00:18:55,480 of them were positive nine percent of 479 00:19:01,289 --> 00:18:58,000 them were neutral or zero and 82 percent 480 00:19:03,090 --> 00:19:01,299 were negatively charged PB peas as I 481 00:19:04,560 --> 00:19:03,100 said I'm competitive there's got to be 482 00:19:07,230 --> 00:19:04,570 something else going on here let me take 483 00:19:08,909 --> 00:19:07,240 a look at other binding proteins now 484 00:19:10,860 --> 00:19:08,919 there are the pheromone binding proteins 485 00:19:12,870 --> 00:19:10,870 which bind the pheromones there's also 486 00:19:15,270 --> 00:19:12,880 the odorant binding proteins which bind 487 00:19:17,820 --> 00:19:15,280 various odorants like plant odors I 488 00:19:20,669 --> 00:19:17,830 analyzed these two there's a lot more of 489 00:19:22,890 --> 00:19:20,679 them over 650 binding proteins were 490 00:19:24,870 --> 00:19:22,900 looked at only the odor and binding 491 00:19:26,760 --> 00:19:24,880 proteins and 1000 binding proteins and 492 00:19:30,480 --> 00:19:26,770 the general odor and binding proteins 493 00:19:34,950 --> 00:19:30,490 were used in this analysis but again I 494 00:19:37,860 --> 00:19:34,960 had 66% negatively charged 9% same as 495 00:19:40,220 --> 00:19:37,870 last time coming in at 0 and 25% coming 496 00:19:42,360 --> 00:19:40,230 in I was not getting consistent results 497 00:19:44,490 --> 00:19:42,370 and if I'm not getting consistent 498 00:19:46,890 --> 00:19:44,500 results I can't apply this to the 499 00:19:50,750 --> 00:19:46,900 original idea that I had of trying to 500 00:19:55,710 --> 00:19:50,760 speed up the process of diffusion via 501 00:19:57,690 --> 00:19:55,720 electrostatic attraction so in a sense 502 00:19:59,070 --> 00:19:57,700 you go back to the drawing board because 503 00:20:00,539 --> 00:19:59,080 there's a researcher you have to do this 504 00:20:02,770 --> 00:20:00,549 sometimes and you run up into roadblocks 505 00:20:04,480 --> 00:20:02,780 and as researchers are in 506 00:20:09,100 --> 00:20:04,490 more roadblocks than I run into positive 507 00:20:14,260 --> 00:20:09,110 results so I go back and I read the 508 00:20:16,420 --> 00:20:14,270 paper by Kyle and he says which I missed 509 00:20:18,460 --> 00:20:16,430 the first time was I guess it wasn't 510 00:20:20,860 --> 00:20:18,470 important to me at the time but there 511 00:20:23,260 --> 00:20:20,870 are fixed negative charges present on 512 00:20:25,630 --> 00:20:23,270 the inner cuticle of the sin silly in 513 00:20:27,670 --> 00:20:25,640 addition to being on the dendritic 514 00:20:30,970 --> 00:20:27,680 membrane well this is interesting news 515 00:20:34,120 --> 00:20:30,980 to know this is very interesting news to 516 00:20:37,960 --> 00:20:34,130 know what does that mean let me show you 517 00:20:40,680 --> 00:20:37,970 we now have electrostatic repulsion with 518 00:20:43,840 --> 00:20:40,690 my negatively charged binding proteins 519 00:20:46,480 --> 00:20:43,850 we've got negative charges on the inside 520 00:20:48,850 --> 00:20:46,490 of the cuticle we've got negative 521 00:20:51,670 --> 00:20:48,860 charges on the dendritic membrane my 522 00:20:53,590 --> 00:20:51,680 binding proteins are largely negative 523 00:20:59,770 --> 00:20:53,600 which means they're going to be repelled 524 00:21:01,930 --> 00:20:59,780 from both sides as a matter of fact 525 00:21:03,940 --> 00:21:01,940 they're gonna be repelled with one 526 00:21:05,350 --> 00:21:03,950 another they've got the same charges 527 00:21:08,050 --> 00:21:05,360 even if they're positively charged 528 00:21:10,000 --> 00:21:08,060 they're still going to be repelled from 529 00:21:12,280 --> 00:21:10,010 one another because of similar charges 530 00:21:14,890 --> 00:21:12,290 so I've got them being repelled from the 531 00:21:16,930 --> 00:21:14,900 sides this side that side I've got them 532 00:21:19,480 --> 00:21:16,940 being repelled from one another and so 533 00:21:21,970 --> 00:21:19,490 therefore we've set up this strange 534 00:21:24,540 --> 00:21:21,980 situation where instead of being able to 535 00:21:27,190 --> 00:21:24,550 travel or diffuse across the thin Siller 536 00:21:30,070 --> 00:21:27,200 I've now got all of this electrostatic 537 00:21:33,310 --> 00:21:30,080 repulsion going on which is now adding a 538 00:21:36,160 --> 00:21:33,320 certain amount of rigidity my fluid 539 00:21:38,860 --> 00:21:36,170 dynamics have changed I'm no longer 540 00:21:40,060 --> 00:21:38,870 dealing with a nice clean flowing water 541 00:21:41,470 --> 00:21:40,070 which is where all the diffusion 542 00:21:42,820 --> 00:21:41,480 coefficients are calculated from it's 543 00:21:45,820 --> 00:21:42,830 either air or water those are the only 544 00:21:47,590 --> 00:21:45,830 two we have now I've got this situation 545 00:21:48,700 --> 00:21:47,600 a little bit rigid which makes sense 546 00:21:50,680 --> 00:21:48,710 because I was talking to a German 547 00:21:52,600 --> 00:21:50,690 researcher who said that the inside of 548 00:21:54,280 --> 00:21:52,610 the sencilla is more like a gel than it 549 00:21:56,110 --> 00:21:54,290 is anything else I'm starting to agree 550 00:21:58,300 --> 00:21:56,120 with them now I had a conversation a few 551 00:22:00,940 --> 00:21:58,310 years ago because if you do not have 552 00:22:02,740 --> 00:22:00,950 movement then the pheromone binding 553 00:22:04,690 --> 00:22:02,750 protein is not going to be able to move 554 00:22:06,310 --> 00:22:04,700 to the inside imagine all these balloons 555 00:22:07,510 --> 00:22:06,320 getting in there you're not going to be 556 00:22:10,030 --> 00:22:07,520 able to get through all these balloons 557 00:22:12,130 --> 00:22:10,040 because of this rigidity right now which 558 00:22:14,140 --> 00:22:12,140 means diffusion has been compromised and 559 00:22:15,640 --> 00:22:14,150 I mean in a bad way which means the 560 00:22:16,210 --> 00:22:15,650 original diffusion coefficients that I 561 00:22:18,760 --> 00:22:16,220 calculate 562 00:22:20,350 --> 00:22:18,770 for the 2009 presentation are now in a 563 00:22:21,669 --> 00:22:20,360 completely different scale when I say 564 00:22:23,860 --> 00:22:21,679 completely different scale I mean really 565 00:22:26,649 --> 00:22:23,870 really low for those of you involved in 566 00:22:28,840 --> 00:22:26,659 SDS page you know that in that gel you 567 00:22:31,600 --> 00:22:28,850 will not get proteins moving through 568 00:22:34,120 --> 00:22:31,610 that gel unless you turn on the charges 569 00:22:35,409 --> 00:22:34,130 for those of you who dealt with SDS page 570 00:22:37,510 --> 00:22:35,419 before and if you've done enough of that 571 00:22:40,060 --> 00:22:37,520 then you know that every once in a while 572 00:22:41,740 --> 00:22:40,070 you forget to turn it on and so you come 573 00:22:43,419 --> 00:22:41,750 back and you analyze the gel with 574 00:22:45,220 --> 00:22:43,429 Coomassie brilliant blue and you realize 575 00:22:47,110 --> 00:22:45,230 oh shoot they're all stuck at the top I 576 00:22:49,960 --> 00:22:47,120 forgot to turn it on the reason is 577 00:22:54,760 --> 00:22:49,970 because proteins do not easily diffuse 578 00:22:55,560 --> 00:22:54,770 through a gel well great now what do I 579 00:22:57,669 --> 00:22:55,570 do 580 00:22:59,680 --> 00:22:57,679 there's two philosophical implications 581 00:23:01,480 --> 00:22:59,690 with this either binding occurs the 582 00:23:05,440 --> 00:23:01,490 pheromone gets to the dendritic membrane 583 00:23:06,310 --> 00:23:05,450 or doesn't one of the two it gets there 584 00:23:10,149 --> 00:23:06,320 or it does not 585 00:23:11,649 --> 00:23:10,159 if binding occurs technology has just 586 00:23:14,320 --> 00:23:11,659 not have found a way to show this yet 587 00:23:18,130 --> 00:23:14,330 that's the excuse I get when I go to 588 00:23:20,830 --> 00:23:18,140 conferences binding does not occur if 589 00:23:23,289 --> 00:23:20,840 that's the case then philosophically 590 00:23:27,610 --> 00:23:23,299 speaking detection of the pheromone must 591 00:23:31,390 --> 00:23:27,620 occur through some alternate means what 592 00:23:32,860 --> 00:23:31,400 is that alternate mean well there are 593 00:23:35,169 --> 00:23:32,870 two theories out there the lock and key 594 00:23:36,970 --> 00:23:35,179 model which most biologists are familiar 595 00:23:38,740 --> 00:23:36,980 with even non biologists I'm sure and 596 00:23:41,020 --> 00:23:38,750 then we have the vibrational Theory of 597 00:23:43,840 --> 00:23:41,030 odor which was brought out in 1930s by 598 00:23:46,990 --> 00:23:43,850 Dyson and has been resurrected a little 599 00:23:48,279 --> 00:23:47,000 bit today and so to take a look at the 600 00:23:49,720 --> 00:23:48,289 vibrational theory of odor there are 601 00:23:51,370 --> 00:23:49,730 certain conditions that need to be met 602 00:23:54,490 --> 00:23:51,380 if we're dealing with an electromagnetic 603 00:23:56,590 --> 00:23:54,500 signal then conditions must be met I've 604 00:23:58,810 --> 00:23:56,600 got some if-then statements right now 605 00:24:01,149 --> 00:23:58,820 let's follow along if this is 606 00:24:03,340 --> 00:24:01,159 electromagnetic then the message from 607 00:24:06,520 --> 00:24:03,350 the pheromone out here needs to get 608 00:24:08,890 --> 00:24:06,530 across the cuticle if this is 609 00:24:11,380 --> 00:24:08,900 electromagnetic then this message after 610 00:24:13,930 --> 00:24:11,390 it passes the cuticle must be able to 611 00:24:16,210 --> 00:24:13,940 pass through this entire watery matrix 612 00:24:19,720 --> 00:24:16,220 right there or this gel as I've just 613 00:24:22,480 --> 00:24:19,730 determined if this is an electromagnetic 614 00:24:24,000 --> 00:24:22,490 message then I must figure out some way 615 00:24:26,409 --> 00:24:24,010 in order to activate this receptor 616 00:24:29,110 --> 00:24:26,419 without the pheromone actually making 617 00:24:30,100 --> 00:24:29,120 contact with it those are my if-then 618 00:24:35,350 --> 00:24:30,110 statements if 619 00:24:36,700 --> 00:24:35,360 this is occurring electromagnetically is 620 00:24:38,980 --> 00:24:36,710 there some way for me to satisfy these 621 00:24:43,500 --> 00:24:38,990 conditions just take a look at some 622 00:24:45,490 --> 00:24:43,510 circumstantial evidence there's my first 623 00:24:48,100 --> 00:24:45,500 actually forgot to put these numbers up 624 00:24:53,080 --> 00:24:48,110 and there's the second region and the 625 00:24:54,970 --> 00:24:53,090 third region for effect dielectric if 626 00:24:56,770 --> 00:24:54,980 this is acting as a dielectric antenna 627 00:24:58,930 --> 00:24:56,780 as phil callahan the mechanism that has 628 00:25:00,940 --> 00:24:58,940 been put forward is shown then a 629 00:25:04,299 --> 00:25:00,950 dielectric according to the definition 630 00:25:05,980 --> 00:25:04,309 needs to have dye means two electric 631 00:25:08,169 --> 00:25:05,990 means that we have separate electrical 632 00:25:11,740 --> 00:25:08,179 charges on either side of a non 633 00:25:14,590 --> 00:25:11,750 conducting material excuse me the 634 00:25:16,419 --> 00:25:14,600 conductive material passes electrons 635 00:25:18,130 --> 00:25:16,429 freely so you have positive and negative 636 00:25:19,870 --> 00:25:18,140 charges on both sides it's not 637 00:25:22,330 --> 00:25:19,880 maintained but a dielectric material 638 00:25:24,310 --> 00:25:22,340 that which is insulated is able to 639 00:25:25,000 --> 00:25:24,320 maintain charges let's say positives on 640 00:25:28,480 --> 00:25:25,010 this side 641 00:25:31,299 --> 00:25:28,490 able to do that because of its 642 00:25:33,520 --> 00:25:31,309 dielectric properties a dielectric 643 00:25:35,110 --> 00:25:33,530 antenna is different than a conducting 644 00:25:36,789 --> 00:25:35,120 antenna although they can't pick up 645 00:25:39,880 --> 00:25:36,799 similar frequencies so if we're dealing 646 00:25:42,190 --> 00:25:39,890 with a dielectric antenna let me hit the 647 00:25:45,100 --> 00:25:42,200 literature again to see what I can find 648 00:25:46,570 --> 00:25:45,110 and there's not a whole lot of papers 649 00:25:48,940 --> 00:25:46,580 out there dealing in bio electro 650 00:25:52,360 --> 00:25:48,950 magnetics of insects but there are some 651 00:25:54,549 --> 00:25:52,370 so Ericsson back in 1975 I found found 652 00:25:56,350 --> 00:25:54,559 that the mean surface potential of 653 00:25:58,390 --> 00:25:56,360 honeybees varied throughout the daily 654 00:26:00,520 --> 00:25:58,400 flight period if the bees are leaving 655 00:26:04,590 --> 00:26:00,530 the hive they've got a surface charge 656 00:26:07,750 --> 00:26:04,600 between negative 14 millivolts to 8 657 00:26:09,520 --> 00:26:07,760 millivolts take-home message they're 658 00:26:11,650 --> 00:26:09,530 about zero a little bit positive a 659 00:26:14,020 --> 00:26:11,660 little bit negative after they're flying 660 00:26:16,180 --> 00:26:14,030 static charges are build up when the 661 00:26:21,250 --> 00:26:16,190 bees return from the hive they are 662 00:26:23,710 --> 00:26:21,260 universally positive they're between 13 663 00:26:25,419 --> 00:26:23,720 to 59 millivolts on the outside of their 664 00:26:27,100 --> 00:26:25,429 body when they come back from the hive 665 00:26:30,039 --> 00:26:27,110 after flying through the air 666 00:26:33,070 --> 00:26:30,049 take-home message here I've got positive 667 00:26:34,450 --> 00:26:33,080 charges on the outside of the insect so 668 00:26:37,840 --> 00:26:34,460 far so good that's something at least 669 00:26:39,549 --> 00:26:37,850 it's consistent remember this slide that 670 00:26:42,880 --> 00:26:39,559 I talked about before I said that 671 00:26:43,930 --> 00:26:42,890 they're well not I said but Kyle said 672 00:26:46,570 --> 00:26:43,940 fixed negative charges 673 00:26:48,930 --> 00:26:46,580 present on the inner cuticle of the sin 674 00:26:52,539 --> 00:26:50,080 wonderful 675 00:26:54,909 --> 00:26:52,549 I've got positives on one side I've got 676 00:26:56,950 --> 00:26:54,919 negatives on the other I was able to 677 00:26:58,570 --> 00:26:56,960 satisfy and I'm not going to talk about 678 00:27:00,549 --> 00:26:58,580 the other properties of a dielectric 679 00:27:03,190 --> 00:27:00,559 antenna why because I've talked about 680 00:27:04,570 --> 00:27:03,200 this before at SSA meetings but I just 681 00:27:06,279 --> 00:27:04,580 want to talk about this new evidence 682 00:27:09,039 --> 00:27:06,289 right now I've satisfied another 683 00:27:11,799 --> 00:27:09,049 condition of a dielectric antenna on the 684 00:27:13,419 --> 00:27:11,809 actual sencilla itself now we've got the 685 00:27:15,730 --> 00:27:13,429 second part if I'm going to have an 686 00:27:17,430 --> 00:27:15,740 electromagnetic signal pass through a 687 00:27:19,720 --> 00:27:17,440 watery matrix how am I going to do that 688 00:27:22,659 --> 00:27:19,730 well some of you will say well you can't 689 00:27:25,450 --> 00:27:22,669 do that through water because deionized 690 00:27:27,009 --> 00:27:25,460 water doesn't conduct and I would say 691 00:27:27,940 --> 00:27:27,019 yeah you're right it doesn't conduct 692 00:27:30,039 --> 00:27:27,950 what about water 693 00:27:32,830 --> 00:27:30,049 well waters a little more conductive it 694 00:27:34,450 --> 00:27:32,840 depends Tom upon the various impurities 695 00:27:36,100 --> 00:27:34,460 that you have in there and you're right 696 00:27:38,639 --> 00:27:36,110 you can't get some conductivity of water 697 00:27:41,590 --> 00:27:38,649 but how can you make it more conductive 698 00:27:43,389 --> 00:27:41,600 take some salt take a salt shaker on top 699 00:27:45,159 --> 00:27:43,399 and start you know throw in the salt in 700 00:27:46,570 --> 00:27:45,169 and as you're putting more and more salt 701 00:27:49,960 --> 00:27:46,580 into the solution you will find that 702 00:27:52,659 --> 00:27:49,970 will become more conductive so if I'm 703 00:27:55,029 --> 00:27:52,669 gonna have a conducting fluid do I have 704 00:27:58,450 --> 00:27:55,039 these salts present in fact I do 705 00:27:59,470 --> 00:27:58,460 I mean this is just classic biological 706 00:28:01,060 --> 00:27:59,480 principles you know the ringers 707 00:28:03,810 --> 00:28:01,070 solutions these are all salt solutions 708 00:28:06,249 --> 00:28:03,820 so we have all of the salts necessary 709 00:28:07,779 --> 00:28:06,259 calcium plus 2 magnesium sodium 710 00:28:09,909 --> 00:28:07,789 potassium hydrogen 711 00:28:12,340 --> 00:28:09,919 we've got chlorine and hydroxide ions 712 00:28:14,649 --> 00:28:12,350 those are some of the classics which are 713 00:28:18,159 --> 00:28:14,659 found inside is so what I do have a salt 714 00:28:21,430 --> 00:28:18,169 solution however I the more salt I put 715 00:28:23,200 --> 00:28:21,440 in the more conductive it gets so how 716 00:28:25,720 --> 00:28:23,210 much salt can i stuff in this in order 717 00:28:28,090 --> 00:28:25,730 to make it conductive what additional 718 00:28:30,220 --> 00:28:28,100 charges can I put in here to make it 719 00:28:32,289 --> 00:28:30,230 more conductive than just a salt 720 00:28:35,200 --> 00:28:32,299 solution which by the way will satisfy 721 00:28:37,210 --> 00:28:35,210 my conditions what about the binding 722 00:28:38,409 --> 00:28:37,220 proteins I just spent a whole bunch of 723 00:28:40,060 --> 00:28:38,419 slides telling you about what an 724 00:28:42,399 --> 00:28:40,070 incredible failure I was at determining 725 00:28:44,830 --> 00:28:42,409 the positive nature of the binding 726 00:28:47,970 --> 00:28:44,840 proteins but can I use these to my 727 00:28:51,549 --> 00:28:47,980 advantage now I've got these charges 728 00:28:53,919 --> 00:28:51,559 sitting in my supposedly conducting 729 00:28:55,419 --> 00:28:53,929 fluid now some of you might say well I 730 00:28:56,950 --> 00:28:55,429 understand what you're saying time but 731 00:28:57,520 --> 00:28:56,960 didn't you just say some of them are 732 00:29:00,820 --> 00:28:57,530 zero 733 00:29:03,640 --> 00:29:00,830 oh yes I did but remember even the ones 734 00:29:06,460 --> 00:29:03,650 that were zero had negative and positive 735 00:29:09,310 --> 00:29:06,470 charges on them as a matter of fact the 736 00:29:14,800 --> 00:29:09,320 binding proteins are running between 30 737 00:29:16,540 --> 00:29:14,810 to 60 charges per molecule and the 738 00:29:20,470 --> 00:29:16,550 concentration of them is between 10 to 739 00:29:23,920 --> 00:29:20,480 20 mil americon tration lots of charges 740 00:29:28,180 --> 00:29:23,930 on them so I've got this the makings of 741 00:29:31,110 --> 00:29:28,190 a very conductive fluid especially if 742 00:29:33,850 --> 00:29:31,120 it's more of a solid so if I get a nice 743 00:29:35,260 --> 00:29:33,860 matrix effect I'm gonna have a little 744 00:29:36,370 --> 00:29:35,270 bit of a crystalline effect and 745 00:29:38,470 --> 00:29:36,380 therefore it's gonna be even more 746 00:29:39,910 --> 00:29:38,480 conductive so I'm feeling good about 747 00:29:42,100 --> 00:29:39,920 this now let's move on to the third part 748 00:29:45,340 --> 00:29:42,110 what about the protein itself can the 749 00:29:48,870 --> 00:29:45,350 protein respond to an electromagnetic 750 00:29:53,080 --> 00:29:50,920 what do we know about these proteins 751 00:29:56,620 --> 00:29:53,090 well originally they were determined to 752 00:29:59,080 --> 00:29:56,630 be seven transmembrane proteins and so a 753 00:30:01,210 --> 00:29:59,090 classic G PCR which was originally what 754 00:30:03,610 --> 00:30:01,220 we thought they were a g-protein coupled 755 00:30:07,030 --> 00:30:03,620 receptor and this that they're all in 756 00:30:12,100 --> 00:30:07,040 the membrane of the phospholipid bilayer 757 00:30:14,680 --> 00:30:12,110 and the odorant receptors were 758 00:30:17,620 --> 00:30:14,690 originally placed in the Class A or 759 00:30:21,090 --> 00:30:17,630 class one rhodopsin like family of GPCRs 760 00:30:25,960 --> 00:30:21,100 however they could not be placed in 761 00:30:29,230 --> 00:30:25,970 subfamily a1 subfamily a7 or subfamily 762 00:30:31,990 --> 00:30:29,240 a16 they were given their own category 763 00:30:33,490 --> 00:30:32,000 they could not be placed in any so they 764 00:30:36,390 --> 00:30:33,500 looked like they were in the Class A 765 00:30:39,220 --> 00:30:36,400 rhodopsin by the way just to remind you 766 00:30:42,670 --> 00:30:39,230 response to electromagnetic energy but 767 00:30:43,930 --> 00:30:42,680 it looked like it was close to this but 768 00:30:46,330 --> 00:30:43,940 they were placed separately they were 769 00:30:47,950 --> 00:30:46,340 not actually called subfamily 8:20 770 00:30:50,410 --> 00:30:47,960 because they weren't too sure about it 771 00:30:51,610 --> 00:30:50,420 but they were placed there so this is 772 00:30:54,070 --> 00:30:51,620 what it looks like we've got a seven 773 00:30:56,560 --> 00:30:54,080 transmembrane molecule this is what all 774 00:30:59,620 --> 00:30:56,570 of them look like there is no 775 00:31:03,970 --> 00:30:59,630 variability just in the past couple 776 00:31:07,690 --> 00:31:03,980 years analysis of the odorant I'm sorry 777 00:31:09,940 --> 00:31:07,700 the ordinate receptors have shown that 778 00:31:10,990 --> 00:31:09,950 it may be a seven transmembrane membrane 779 00:31:17,320 --> 00:31:11,000 protein but 780 00:31:21,100 --> 00:31:17,330 it's backwards all GPCRs have the amino 781 00:31:25,000 --> 00:31:21,110 end outside a carbon end on the inside 782 00:31:27,340 --> 00:31:25,010 the ends and the C's were switched all 783 00:31:30,669 --> 00:31:27,350 of the odorant receptors and insects are 784 00:31:31,870 --> 00:31:30,679 backwards every one even as I'm standing 785 00:31:33,070 --> 00:31:31,880 before you for those who are watching 786 00:31:35,860 --> 00:31:33,080 this video right now are still 787 00:31:38,380 --> 00:31:35,870 scratching their heads wondering why the 788 00:31:40,690 --> 00:31:38,390 insects have just made this exception 789 00:31:46,779 --> 00:31:40,700 they are the only ones with a backwards 790 00:31:49,570 --> 00:31:46,789 odorant receptor so I get attacked 791 00:31:51,549 --> 00:31:49,580 sometimes this happens and one of them 792 00:31:54,159 --> 00:31:51,559 is that you know Tom you're wrong 793 00:31:55,960 --> 00:31:54,169 because we've been able to show that the 794 00:31:59,020 --> 00:31:55,970 lock and key is valid because we deal 795 00:32:02,140 --> 00:31:59,030 with xena pessoa sites for you Nam 796 00:32:04,450 --> 00:32:02,150 biologists its frog eggs so what they do 797 00:32:07,029 --> 00:32:04,460 there's our classic frog right there 798 00:32:08,860 --> 00:32:07,039 xena pissed Lavis and they didn't use 799 00:32:11,080 --> 00:32:08,870 these a lot in in biological 800 00:32:12,850 --> 00:32:11,090 laboratories and those are the eggs off 801 00:32:15,399 --> 00:32:12,860 to the right and what they do is they 802 00:32:18,039 --> 00:32:15,409 express proteins in these xena pessoa 803 00:32:19,810 --> 00:32:18,049 sites and then they analyze them it's a 804 00:32:21,279 --> 00:32:19,820 rather simple it's an elegant system 805 00:32:24,100 --> 00:32:21,289 what they do is they inject it I think 806 00:32:27,310 --> 00:32:24,110 it's with C RNA and it takes about 2 or 807 00:32:29,860 --> 00:32:27,320 3 days for them to express the proteins 808 00:32:32,020 --> 00:32:29,870 in the actual membrane of the frog egg 809 00:32:33,640 --> 00:32:32,030 and then you start testing the frog egg 810 00:32:35,230 --> 00:32:33,650 they actually start throwing odorants at 811 00:32:38,440 --> 00:32:35,240 it and looking to see if a response it's 812 00:32:40,240 --> 00:32:38,450 really kind of a neat system so they 813 00:32:41,950 --> 00:32:40,250 were able to do that they were able to 814 00:32:43,390 --> 00:32:41,960 take the odorant receptors now they did 815 00:32:45,460 --> 00:32:43,400 have to have the dimer because there are 816 00:32:47,320 --> 00:32:45,470 two proteins involved there's an O r83 B 817 00:32:49,779 --> 00:32:47,330 which is a co-receptor 818 00:32:52,330 --> 00:32:49,789 and similar to it which have just 819 00:32:54,850 --> 00:32:52,340 recently been called Orko's for odorant 820 00:32:56,950 --> 00:32:54,860 receptor co-receptors and these Orko's 821 00:32:59,740 --> 00:32:56,960 in addition to being expressed with the 822 00:33:02,590 --> 00:32:59,750 ordinate receptor now give a certain 823 00:33:04,750 --> 00:33:02,600 amount of activity to the frog eggs when 824 00:33:07,720 --> 00:33:04,760 you hit them with an odorant therefore 825 00:33:09,490 --> 00:33:07,730 Tom you are wrong because we've got the 826 00:33:11,860 --> 00:33:09,500 odorant we put it in this artificial 827 00:33:13,570 --> 00:33:11,870 system and we get a response from a frog 828 00:33:18,820 --> 00:33:13,580 egg and all we're doing is expressing 829 00:33:21,279 --> 00:33:18,830 the the protein and so that is some 830 00:33:22,870 --> 00:33:21,289 convincing evidence to be sure and so I 831 00:33:23,890 --> 00:33:22,880 turn to some of the individuals and I 832 00:33:26,920 --> 00:33:23,900 said well did you 833 00:33:29,050 --> 00:33:26,930 to a bush contact and so what do you 834 00:33:31,480 --> 00:33:29,060 mean contact I said did you establish 835 00:33:33,490 --> 00:33:31,490 contact between the pheromone and the 836 00:33:35,590 --> 00:33:33,500 receptor I understand it was expressed I 837 00:33:37,390 --> 00:33:35,600 get that I understand you exposed the 838 00:33:39,850 --> 00:33:37,400 odorant the appropriate odorant I get 839 00:33:43,540 --> 00:33:39,860 that too did you show contact between 840 00:33:45,850 --> 00:33:43,550 the pheromone well yeah I mean how else 841 00:33:49,150 --> 00:33:45,860 did it happen and maybe we put it there 842 00:33:51,850 --> 00:33:49,160 we got a reaction a depolarization so of 843 00:33:54,040 --> 00:33:51,860 course it contacted us said what process 844 00:33:55,780 --> 00:33:54,050 did you use to show contact how do you 845 00:33:57,940 --> 00:33:55,790 know that they made contact the person 846 00:34:05,550 --> 00:33:57,950 one of the persons got frustrated at me 847 00:34:05,560 --> 00:34:08,800 touching 848 00:34:14,659 --> 00:34:11,960 follow along my two hands are separated 849 00:34:17,960 --> 00:34:14,669 I bring them together they're now 850 00:34:21,430 --> 00:34:17,970 touching that to me is contact that's 851 00:34:25,820 --> 00:34:21,440 how I define contact was contact shown 852 00:34:29,060 --> 00:34:25,830 that conversation ended by the way so no 853 00:34:30,350 --> 00:34:29,070 contact was shown but what did was shown 854 00:34:32,630 --> 00:34:30,360 even though it's not the same reaction 855 00:34:37,490 --> 00:34:32,640 we're not getting clear spikes we did 856 00:34:39,740 --> 00:34:37,500 have activation the odorant and the 857 00:34:41,570 --> 00:34:39,750 odered receptor we got activation in the 858 00:34:44,240 --> 00:34:41,580 Frog oocyte so how was it being 859 00:34:47,450 --> 00:34:44,250 activated we not sure if contact was 860 00:34:49,130 --> 00:34:47,460 made it might have been as I'm standing 861 00:34:52,790 --> 00:34:49,140 here right now in 2012 it might have 862 00:34:55,610 --> 00:34:52,800 been but it just wasn't shown and by the 863 00:35:00,140 --> 00:34:55,620 way this system only worked in a salt 864 00:35:01,400 --> 00:35:00,150 solution moving on to another study that 865 00:35:03,520 --> 00:35:01,410 I found take a look at the with the 866 00:35:06,800 --> 00:35:03,530 Japanese researchers bit did back in 867 00:35:09,290 --> 00:35:06,810 1985 evidence for non receptor odor 868 00:35:12,470 --> 00:35:09,300 discrimination using neuroblastoma cells 869 00:35:14,540 --> 00:35:12,480 as a model for a olfactory cells so 870 00:35:17,150 --> 00:35:14,550 we've got a model situation a very 871 00:35:20,270 --> 00:35:17,160 unnatural situation the excerpt from the 872 00:35:22,220 --> 00:35:20,280 abstract the mouse neuroblastoma cell 873 00:35:25,300 --> 00:35:22,230 which is independent of an olfactory 874 00:35:28,490 --> 00:35:25,310 cell was depolarized by 20 different 875 00:35:30,470 --> 00:35:28,500 odorants examined suggesting that 876 00:35:33,020 --> 00:35:30,480 specific proteins are not required for 877 00:35:35,870 --> 00:35:33,030 reception of odorants well this is kind 878 00:35:37,490 --> 00:35:35,880 of big because lock-and-key says that if 879 00:35:42,020 --> 00:35:37,500 you've got an odorant you need to have a 880 00:35:44,870 --> 00:35:42,030 very very specific odorant receptor it's 881 00:35:46,490 --> 00:35:44,880 lock and key after all and because it's 882 00:35:48,350 --> 00:35:46,500 locked in key it has to be specific I 883 00:35:50,420 --> 00:35:48,360 mean you change one small thing on an 884 00:35:54,050 --> 00:35:50,430 insect pheromone and you will change its 885 00:36:01,450 --> 00:35:54,060 receptivity forever so it is very 886 00:36:09,110 --> 00:36:04,070 let's get even a little bit simpler the 887 00:36:11,330 --> 00:36:09,120 frog eggs is a living entity but what if 888 00:36:13,550 --> 00:36:11,340 we can simplify the system even more so 889 00:36:15,170 --> 00:36:13,560 here we have a phospholipid bilayer the 890 00:36:17,450 --> 00:36:15,180 hydrophobic ends on the inside the 891 00:36:18,980 --> 00:36:17,460 hydrophilic sends on the outside most of 892 00:36:21,540 --> 00:36:18,990 you I think are aware of how all 893 00:36:24,300 --> 00:36:21,550 membranes are set up 894 00:36:26,280 --> 00:36:24,310 we can make these called liposomes and 895 00:36:30,180 --> 00:36:26,290 what these are is these are just a 896 00:36:31,350 --> 00:36:30,190 phospholipid bilayer and that's it what 897 00:36:33,990 --> 00:36:31,360 do you mean that's it Tom is there 898 00:36:35,910 --> 00:36:34,000 anything inside no is there DNA no 899 00:36:37,500 --> 00:36:35,920 there's there RNA no is there a nuclear 900 00:36:39,510 --> 00:36:37,510 membrane no there's not that either 901 00:36:42,150 --> 00:36:39,520 what about endoplasmic reticulum no 902 00:36:43,920 --> 00:36:42,160 mitochondria no is there anything inside 903 00:36:47,460 --> 00:36:43,930 no there's nothing inside it's just a 904 00:36:47,940 --> 00:36:47,470 phospholipid bilayer so what do you do 905 00:36:52,260 --> 00:36:47,950 with it 906 00:36:53,820 --> 00:36:52,270 I'll tell you here's the phospholipid 907 00:36:55,560 --> 00:36:53,830 bilayer I've blown it up right now we've 908 00:36:59,040 --> 00:36:55,570 got the two layers right there and you 909 00:37:01,440 --> 00:36:59,050 can insert membrane proteins into it 910 00:37:02,910 --> 00:37:01,450 well this is a nice simple system at 911 00:37:06,000 --> 00:37:02,920 least I don't deal with a frog right now 912 00:37:08,280 --> 00:37:06,010 so we get these liposomes you insert the 913 00:37:12,480 --> 00:37:08,290 the membrane protein in there and you 914 00:37:14,550 --> 00:37:12,490 can also play around with them so what 915 00:37:16,710 --> 00:37:14,560 do we have if we insert a membrane-bound 916 00:37:18,990 --> 00:37:16,720 protein into a liposome we create what 917 00:37:20,460 --> 00:37:19,000 is known as a pro do liposome I think 918 00:37:23,310 --> 00:37:20,470 you can understand the word derivation 919 00:37:28,740 --> 00:37:23,320 for that so if we have an insect o R and 920 00:37:30,540 --> 00:37:28,750 we then place through means all of these 921 00:37:33,480 --> 00:37:30,550 membrane bound proteins into it we can 922 00:37:35,010 --> 00:37:33,490 now test the liposome for its activity 923 00:37:37,200 --> 00:37:35,020 two different odorants a much simpler 924 00:37:40,800 --> 00:37:37,210 system than even the frog eggs what do 925 00:37:42,630 --> 00:37:40,810 we get we get activation so we express 926 00:37:44,400 --> 00:37:42,640 it in a liposome and we get activation 927 00:37:47,580 --> 00:37:44,410 which is a type of depolarization it's a 928 00:37:49,770 --> 00:37:47,590 subtle signal not quite the same by far 929 00:37:51,360 --> 00:37:49,780 as an in vivo situation but we're 930 00:37:57,240 --> 00:37:51,370 getting a reaction from it that's 931 00:37:59,190 --> 00:37:57,250 telling what about a random protein just 932 00:38:00,270 --> 00:37:59,200 got finished with that 1985 paper said 933 00:38:01,920 --> 00:38:00,280 they don't even using the right odor 934 00:38:03,750 --> 00:38:01,930 receptors and they got response what if 935 00:38:06,030 --> 00:38:03,760 I don't have random protein what would 936 00:38:08,370 --> 00:38:06,040 happen if I took a random protein and 937 00:38:10,500 --> 00:38:08,380 then put that in the liposome and then 938 00:38:13,110 --> 00:38:10,510 tested an odorant that we would assume 939 00:38:15,810 --> 00:38:13,120 is nowhere near related to it what would 940 00:38:19,710 --> 00:38:15,820 happen we would get a reaction as well 941 00:38:25,140 --> 00:38:19,720 why it's lock and key what's going on 942 00:38:30,420 --> 00:38:25,150 these odorants are they locking into 943 00:38:32,580 --> 00:38:30,430 every single protein that we give it no 944 00:38:34,770 --> 00:38:32,590 more in Kurihara in 1987 taking a look 945 00:38:35,040 --> 00:38:34,780 at liposomes as a model for all factory 946 00:38:36,960 --> 00:38:35,050 cell 947 00:38:39,330 --> 00:38:36,970 various odorants were found to 948 00:38:42,390 --> 00:38:39,340 depolarize and he's a particular type of 949 00:38:44,670 --> 00:38:42,400 liposomes as electon liposomes beautiful 950 00:38:46,830 --> 00:38:44,680 interesting stuff the lipid composition 951 00:38:48,240 --> 00:38:46,840 of the liposomes is one of the factors 952 00:38:50,550 --> 00:38:48,250 that controls the sensitivity to 953 00:38:52,200 --> 00:38:50,560 deodorants that makes sense to you 954 00:38:55,410 --> 00:38:52,210 change the phospholipid by a letter you 955 00:38:57,510 --> 00:38:55,420 change the properties three odorants 956 00:38:59,790 --> 00:38:57,520 change the membrane fluidity of the 957 00:39:03,540 --> 00:38:59,800 liposomes what does that mean the 958 00:39:07,110 --> 00:39:03,550 membrane fluidity is that it's it has 959 00:39:08,670 --> 00:39:07,120 become D structured shall we say why 960 00:39:11,190 --> 00:39:08,680 this is actually important because 961 00:39:15,510 --> 00:39:11,200 anytime you depolarize something you 962 00:39:17,100 --> 00:39:15,520 cause leakage leakage what do you mean 963 00:39:19,290 --> 00:39:17,110 leakage time you mean cell is leaking 964 00:39:22,650 --> 00:39:19,300 yes that's how all depolarizations occur 965 00:39:25,170 --> 00:39:22,660 ions leaked into the cell through an ion 966 00:39:26,870 --> 00:39:25,180 channel this leakage is necessary and 967 00:39:29,190 --> 00:39:26,880 part of this leakage is dependent upon 968 00:39:30,750 --> 00:39:29,200 destabilizing the membrane this is 969 00:39:33,330 --> 00:39:30,760 actually one of the prerequisites and 970 00:39:34,920 --> 00:39:33,340 was known back in 87 is that when you 971 00:39:37,920 --> 00:39:34,930 change the membrane fluidity of the 972 00:39:41,010 --> 00:39:37,930 liposomes you are now creating a sort of 973 00:39:43,920 --> 00:39:41,020 activation and finally the membrane 974 00:39:47,490 --> 00:39:43,930 fluidity was changed in concentration 975 00:39:49,530 --> 00:39:47,500 ranges of odorants similar to those were 976 00:39:52,080 --> 00:39:49,540 the membrane potential changes in a 977 00:39:54,750 --> 00:39:52,090 regular in vivo situation so it turns 978 00:39:57,060 --> 00:39:54,760 out that this is relatively accurate not 979 00:40:00,050 --> 00:39:57,070 too bad to work with two years later the 980 00:40:02,550 --> 00:40:00,060 same guys came up with another study 981 00:40:04,470 --> 00:40:02,560 their responses to or Durance and these 982 00:40:08,460 --> 00:40:04,480 lipo stones diminished at low 983 00:40:10,710 --> 00:40:08,470 concentrations of salts and recovered 984 00:40:11,910 --> 00:40:10,720 upon addition of salts to the 985 00:40:13,560 --> 00:40:11,920 stimulating solution 986 00:40:16,470 --> 00:40:13,570 I mentioned that salts were necessary 987 00:40:17,820 --> 00:40:16,480 for the Frog eggs this didn't really 988 00:40:19,260 --> 00:40:17,830 ruffle any feathers because people 989 00:40:22,620 --> 00:40:19,270 figure well it's a frog egg it needs to 990 00:40:23,910 --> 00:40:22,630 have some sort of ringers solution for 991 00:40:25,230 --> 00:40:23,920 it to work but the lipo stones don't 992 00:40:27,240 --> 00:40:25,240 need that I mean it's essentially just a 993 00:40:29,220 --> 00:40:27,250 dead phospholipid bilayer so you take 994 00:40:31,380 --> 00:40:29,230 away the salts you lose the effect why 995 00:40:33,570 --> 00:40:31,390 if it's lock and key what would the 996 00:40:36,150 --> 00:40:33,580 salts have to do with it why does the 997 00:40:40,920 --> 00:40:36,160 addition of salts bring it back as soon 998 00:40:43,560 --> 00:40:40,930 as you get removed them they also found 999 00:40:46,350 --> 00:40:43,570 that divalent cations divalent meaning 1000 00:40:48,280 --> 00:40:46,360 two were effective in supporting the 1001 00:40:51,880 --> 00:40:48,290 responses to odorants that much lower 1002 00:40:54,670 --> 00:40:51,890 sensations then mono valent cations one 1003 00:40:58,180 --> 00:40:54,680 one positive charge versus two positive 1004 00:41:00,610 --> 00:40:58,190 charge you see here the divalent cations 1005 00:41:03,550 --> 00:41:00,620 supported it at much lower 1006 00:41:06,760 --> 00:41:03,560 concentrations they increased the 1007 00:41:12,550 --> 00:41:06,770 sensitivity so when you increased the 1008 00:41:14,950 --> 00:41:12,560 charges of the in vitro situation you 1009 00:41:20,110 --> 00:41:14,960 increased its ability to detect the 1010 00:41:22,090 --> 00:41:20,120 odorant the next step was obviously as 1011 00:41:23,320 --> 00:41:22,100 well we've got ions going in and out I 1012 00:41:25,540 --> 00:41:23,330 mean the whole leakage thing you know 1013 00:41:29,650 --> 00:41:25,550 calcium influx this is how neurobiology 1014 00:41:33,330 --> 00:41:29,660 works what if we used impermeable 1015 00:41:35,950 --> 00:41:33,340 organic cations so we got those charges 1016 00:41:38,110 --> 00:41:35,960 which I'm suggesting are important but 1017 00:41:40,930 --> 00:41:38,120 they're impermeable so they can't get 1018 00:41:44,200 --> 00:41:40,940 inside the liposome which means they 1019 00:41:46,780 --> 00:41:44,210 can't be causing the depolarization 1020 00:41:49,330 --> 00:41:46,790 effect when they used impermeable 1021 00:41:52,990 --> 00:41:49,340 organic cations they were effective in 1022 00:41:55,630 --> 00:41:53,000 supporting the responses as well so the 1023 00:41:58,060 --> 00:41:55,640 response is not based upon an influx of 1024 00:42:00,640 --> 00:41:58,070 calcium ions you simply need to have the 1025 00:42:05,260 --> 00:42:00,650 charges on the outside in order for the 1026 00:42:07,090 --> 00:42:05,270 system to work and let's say this one is 1027 00:42:08,320 --> 00:42:07,100 nineteen ninety again Japanese 1028 00:42:10,710 --> 00:42:08,330 researchers I guess they're playing a 1029 00:42:14,530 --> 00:42:10,720 lot with liposomes over there in Japan 1030 00:42:16,540 --> 00:42:14,540 hate to talk to you about that we've got 1031 00:42:18,400 --> 00:42:16,550 some proteins right there and they were 1032 00:42:21,220 --> 00:42:18,410 able to show this effect as I told you 1033 00:42:24,190 --> 00:42:21,230 before but what if we took some of those 1034 00:42:26,740 --> 00:42:24,200 same proteins and got a little more 1035 00:42:29,020 --> 00:42:26,750 complicated well instead of having one 1036 00:42:30,940 --> 00:42:29,030 odorant receptor we had a whole bunch of 1037 00:42:32,650 --> 00:42:30,950 different proteins what happens then I 1038 00:42:35,110 --> 00:42:32,660 actually found out the Japanese 1039 00:42:38,650 --> 00:42:35,120 researchers that the more complex you 1040 00:42:41,800 --> 00:42:38,660 get the better they get at detecting 1041 00:42:45,250 --> 00:42:41,810 odorants how good in this study they use 1042 00:42:49,090 --> 00:42:45,260 12 different odorants the liposome this 1043 00:42:50,200 --> 00:42:49,100 dead Maalik molecule this i don't even 1044 00:42:52,270 --> 00:42:50,210 know what you want to call let's just 1045 00:42:54,370 --> 00:42:52,280 call it a liposome this liposome this 1046 00:42:56,020 --> 00:42:54,380 non living entity is responding to 12 1047 00:42:58,990 --> 00:42:56,030 different odorants that it hit it and 1048 00:43:01,940 --> 00:42:59,000 they were consistent odorant number 1049 00:43:04,460 --> 00:43:01,950 three was giving exactly the same 1050 00:43:06,589 --> 00:43:04,470 responds every single time to the point 1051 00:43:08,329 --> 00:43:06,599 where at the end of the study they could 1052 00:43:10,160 --> 00:43:08,339 tell which of the 12 ordinances was 1053 00:43:12,380 --> 00:43:10,170 based upon the response that they got to 1054 00:43:15,170 --> 00:43:12,390 the liposome and to answer your own 1055 00:43:17,089 --> 00:43:15,180 asked question no none of these proteins 1056 00:43:20,290 --> 00:43:17,099 that were used were classic odorant 1057 00:43:22,510 --> 00:43:20,300 receptors just random proteins 1058 00:43:24,609 --> 00:43:22,520 well this then moves on to some other 1059 00:43:29,930 --> 00:43:24,619 possibilities I mean if deed if this 1060 00:43:32,270 --> 00:43:29,940 conducting fluid is important then where 1061 00:43:37,700 --> 00:43:32,280 to go from here so I got a chance to 1062 00:43:39,200 --> 00:43:37,710 talk to a researcher at Georgia who does 1063 00:43:41,300 --> 00:43:39,210 work on decoupage decapod so our 1064 00:43:44,089 --> 00:43:41,310 lobsters crabs shrimp 10 legs 1065 00:43:47,180 --> 00:43:44,099 crustaceans and I was chatting with them 1066 00:43:50,599 --> 00:43:47,190 one time about the the sensory cells the 1067 00:43:53,060 --> 00:43:50,609 8th the tasks and they mentioned to me 1068 00:43:55,010 --> 00:43:53,070 that there's a way in order to make them 1069 00:43:56,750 --> 00:43:55,020 a NAS m'q which means they can't smell 1070 00:44:02,020 --> 00:43:56,760 and I said well how does that work he 1071 00:44:05,900 --> 00:44:02,030 goes you flush them with fresh water and 1072 00:44:06,470 --> 00:44:05,910 I thought and I said fresh water you're 1073 00:44:09,020 --> 00:44:06,480 kidding 1074 00:44:10,520 --> 00:44:09,030 I said does anybody else know about this 1075 00:44:13,339 --> 00:44:10,530 you know think it was such a big secret 1076 00:44:13,640 --> 00:44:13,349 it goes oh yeah we all do it you all do 1077 00:44:26,089 --> 00:44:13,650 it 1078 00:44:27,230 --> 00:44:26,099 take and he said at least 45 minutes so 1079 00:44:28,640 --> 00:44:27,240 we do that to kind of clear them out 1080 00:44:31,099 --> 00:44:28,650 it's kind of like a control type thing 1081 00:44:33,230 --> 00:44:31,109 and then once the the saline solution 1082 00:44:35,720 --> 00:44:33,240 because lobsters live in the ocean and 1083 00:44:37,190 --> 00:44:35,730 marine environment the the salt solution 1084 00:44:37,760 --> 00:44:37,200 gets back in there and everything is all 1085 00:44:40,220 --> 00:44:37,770 fine 1086 00:44:41,510 --> 00:44:40,230 and I thought really that's interesting 1087 00:44:43,490 --> 00:44:41,520 so I got a chance to talk to another 1088 00:44:45,740 --> 00:44:43,500 researcher also dealing with this issue 1089 00:44:47,420 --> 00:44:45,750 at the University of Florida and we were 1090 00:44:49,130 --> 00:44:47,430 chatting about blue crabs because blue 1091 00:44:52,099 --> 00:44:49,140 crabs are able to survive in a marine 1092 00:44:54,410 --> 00:44:52,109 environment salt and a freshwater 1093 00:44:57,020 --> 00:44:54,420 environment because they migrate they 1094 00:44:58,550 --> 00:44:57,030 could do both so I said well what 1095 00:45:00,740 --> 00:44:58,560 happens with the since Hilary cells and 1096 00:45:05,660 --> 00:45:00,750 and again just very quick off-the-cuff 1097 00:45:07,190 --> 00:45:05,670 it goes well they've got this salt 1098 00:45:09,380 --> 00:45:07,200 solution that they kind of move in and 1099 00:45:12,079 --> 00:45:09,390 out of the cell and the sensory cell at 1100 00:45:13,579 --> 00:45:12,089 will so as they're moving from the 1101 00:45:15,230 --> 00:45:13,589 marine environment up through the Great 1102 00:45:17,480 --> 00:45:15,240 Lakes for example 1103 00:45:19,910 --> 00:45:17,490 the actual change of the micro 1104 00:45:23,150 --> 00:45:19,920 environment inside the sensory cells is 1105 00:45:25,130 --> 00:45:23,160 actively changed by the blue-crab and 1106 00:45:27,260 --> 00:45:25,140 there's Gleason's paper in 2000 1107 00:45:29,660 --> 00:45:27,270 attesting to that effect I thought wow 1108 00:45:31,130 --> 00:45:29,670 this is really interesting too I mean 1109 00:45:32,839 --> 00:45:31,140 I'm an insect guy I don't usually deal 1110 00:45:34,460 --> 00:45:32,849 with decoupage but in this case I'll 1111 00:45:36,349 --> 00:45:34,470 take a look at this because there are 1112 00:45:38,750 --> 00:45:36,359 some similarities and differences 1113 00:45:40,880 --> 00:45:38,760 between the decapod sensory cells and 1114 00:45:42,770 --> 00:45:40,890 the insects sensory cells well taking 1115 00:45:44,810 --> 00:45:42,780 this idea then we should be able to come 1116 00:45:46,579 --> 00:45:44,820 to some conclusions I mean if this salt 1117 00:45:48,560 --> 00:45:46,589 solution is important supposedly as a 1118 00:45:51,410 --> 00:45:48,570 conducting fluid then we should be able 1119 00:45:54,829 --> 00:45:51,420 to come up with some if-then statements 1120 00:45:57,010 --> 00:45:54,839 if this is true then terrestrial insects 1121 00:46:01,280 --> 00:45:57,020 need to have this salt solution 1122 00:46:03,349 --> 00:46:01,290 therefore we've got the pores and there 1123 00:46:05,660 --> 00:46:03,359 shouldn't be a problem because it's in 1124 00:46:07,370 --> 00:46:05,670 air therefore I would expect them to 1125 00:46:09,200 --> 00:46:07,380 have the pores and that they would have 1126 00:46:11,450 --> 00:46:09,210 this micro environment of the salts and 1127 00:46:13,609 --> 00:46:11,460 they do there they do have pores in the 1128 00:46:15,829 --> 00:46:13,619 olfactory sense silly crustaceans 1129 00:46:17,870 --> 00:46:15,839 what about crustaceans can they have the 1130 00:46:19,430 --> 00:46:17,880 pores some might say well no because you 1131 00:46:20,510 --> 00:46:19,440 know everything would be leaking I was 1132 00:46:22,190 --> 00:46:20,520 like well I really want to be that bad 1133 00:46:24,079 --> 00:46:22,200 because the crustaceans are in a marine 1134 00:46:25,760 --> 00:46:24,089 environment and if they're in a marine 1135 00:46:27,920 --> 00:46:25,770 environment the salt solution is it's 1136 00:46:30,470 --> 00:46:27,930 getting in through the pores is still 1137 00:46:31,970 --> 00:46:30,480 going to be able to allow this to occur 1138 00:46:34,880 --> 00:46:31,980 that's not going to be a problem at all 1139 00:46:35,390 --> 00:46:34,890 so they do have pores in noël factories 1140 00:46:37,700 --> 00:46:35,400 in silly 1141 00:46:39,849 --> 00:46:37,710 what about aquatic insects insects are 1142 00:46:43,609 --> 00:46:39,859 not found in a marine environment 1143 00:46:45,920 --> 00:46:43,619 they're in freshwater what then there's 1144 00:46:47,960 --> 00:46:45,930 a curious thing of the what aquatic 1145 00:46:50,480 --> 00:46:47,970 insects had to go searching for this no 1146 00:46:53,030 --> 00:46:50,490 one really knows why but aquatic insects 1147 00:46:55,190 --> 00:46:53,040 do not have pores in their sencilla it's 1148 00:46:57,280 --> 00:46:55,200 just not there so therefore they're able 1149 00:47:00,320 --> 00:46:57,290 to maintain that micro environment and 1150 00:47:02,000 --> 00:47:00,330 is same aquatic insects once they come 1151 00:47:03,829 --> 00:47:02,010 out of the water like dragonflies stone 1152 00:47:08,109 --> 00:47:03,839 flies mayflies they come out and they're 1153 00:47:12,680 --> 00:47:10,880 so this is what's going on this is 1154 00:47:14,570 --> 00:47:12,690 what's going on there is some suggestion 1155 00:47:16,940 --> 00:47:14,580 right now some circumstantial evidence 1156 00:47:20,270 --> 00:47:16,950 new evidence that I'm supporting right 1157 00:47:22,089 --> 00:47:20,280 now to show that indeed we may have this 1158 00:47:24,500 --> 00:47:22,099 system actually occurring an 1159 00:47:26,839 --> 00:47:24,510 electromagnetic detection based upon 1160 00:47:28,090 --> 00:47:26,849 sound physical laws that could be 1161 00:47:39,850 --> 00:47:28,100 occurring in the end 1162 00:47:40,720 --> 00:47:39,860 sex and with that I am done time for a 1163 00:47:42,940 --> 00:47:40,730 few questions 1164 00:47:49,900 --> 00:47:42,950 Roger can you put the microphone over 1165 00:47:52,600 --> 00:47:49,910 there thank you this picture was also 1166 00:47:55,630 --> 00:47:52,610 taken a couple days ago she sent me two 1167 00:47:58,000 --> 00:47:55,640 pictures I had to choose I couldn't 1168 00:48:01,750 --> 00:47:58,010 choose go ahead 1169 00:48:05,890 --> 00:48:01,760 nice picture my name is Larissa Karen 1170 00:48:08,410 --> 00:48:05,900 and I want you to elaborate a little bit 1171 00:48:12,930 --> 00:48:08,420 of the poll on the possibility that the 1172 00:48:19,500 --> 00:48:12,940 olfactory mechanism is based on quantum 1173 00:48:23,740 --> 00:48:19,510 effect because they are not enough 1174 00:48:28,360 --> 00:48:23,750 protein conformational changes to 1175 00:48:31,230 --> 00:48:28,370 explain the large number of smells we 1176 00:48:34,450 --> 00:48:31,240 can recognize at least in human 1177 00:48:36,400 --> 00:48:34,460 olfactory system yes that's actually 1178 00:48:37,600 --> 00:48:36,410 gonna be outside my area of expertise 1179 00:48:39,790 --> 00:48:37,610 she's actually bringing out at the point 1180 00:48:41,890 --> 00:48:39,800 I think about the electron tunneling 1181 00:48:45,970 --> 00:48:41,900 theory that Luca Turin has come up with 1182 00:48:47,950 --> 00:48:45,980 there is more of a physical effect it 1183 00:48:50,230 --> 00:48:47,960 does not seem to be occurring with our 1184 00:48:51,880 --> 00:48:50,240 system because with his effect you have 1185 00:48:53,770 --> 00:48:51,890 to be between two plates for electron 1186 00:48:55,510 --> 00:48:53,780 tunneling to occur and it's through this 1187 00:48:58,060 --> 00:48:55,520 process that it is a quantum type of 1188 00:49:00,070 --> 00:48:58,070 effect whereas with this system because 1189 00:49:01,810 --> 00:49:00,080 it's occurring at a distance the 1190 00:49:04,780 --> 00:49:01,820 evidence to me seems to be more 1191 00:49:07,480 --> 00:49:04,790 electromagnetic than a pure quantum 1192 00:49:10,810 --> 00:49:07,490 effect so I would differentiate between 1193 00:49:12,490 --> 00:49:10,820 the two theories and suggest because I'm 1194 00:49:14,770 --> 00:49:12,500 not able to elaborate mostly so I'm 1195 00:49:15,610 --> 00:49:14,780 trying to dodge the question is that I 1196 00:49:16,870 --> 00:49:15,620 would think it would be more 1197 00:49:18,370 --> 00:49:16,880 electromagnetic and therefore we're 1198 00:49:20,560 --> 00:49:18,380 probably dealing with more of a wave 1199 00:49:23,140 --> 00:49:20,570 phenomena than we are with the quantum 1200 00:49:24,310 --> 00:49:23,150 type of phenomena although I still could 1201 00:49:30,780 --> 00:49:24,320 be wrong the jury's still out 1202 00:49:33,700 --> 00:49:30,790 thank you York Dobyns here you've been 1203 00:49:35,890 --> 00:49:33,710 challenging the paradigm for insect 1204 00:49:37,780 --> 00:49:35,900 olfaction for quite some time and in 1205 00:49:39,160 --> 00:49:37,790 this talk you just pointed out that 1206 00:49:39,730 --> 00:49:39,170 there's evidence for the same thing 1207 00:49:43,780 --> 00:49:39,740 going on 1208 00:49:46,930 --> 00:49:43,790 in other arthropods do you think that 1209 00:49:48,640 --> 00:49:46,940 there might be a similar challenge to 1210 00:49:53,370 --> 00:49:48,650 the lock and key model of olfaction 1211 00:49:59,170 --> 00:49:57,099 absolutely as a matter of fact am I able 1212 00:50:02,020 --> 00:49:59,180 to stop my answer with just that one 1213 00:50:04,570 --> 00:50:02,030 word because obviously I don't have 1214 00:50:07,359 --> 00:50:04,580 enough time to go into it but York thank 1215 00:50:10,170 --> 00:50:07,369 you for the question yes the answer is 1216 00:50:15,760 --> 00:50:13,240 Glenn Rhine and the question well first 1217 00:50:17,320 --> 00:50:15,770 the comment are you aware of ross ats 1218 00:50:19,390 --> 00:50:17,330 work back in the 80s where he 1219 00:50:22,030 --> 00:50:19,400 demonstrated that electromagnetic fields 1220 00:50:24,579 --> 00:50:22,040 affect membrane fluidity in neuronal 1221 00:50:26,020 --> 00:50:24,589 cells and are there other similar 1222 00:50:29,050 --> 00:50:26,030 studies that have been done with 1223 00:50:30,700 --> 00:50:29,060 olfaction using physical electromagnetic 1224 00:50:32,500 --> 00:50:30,710 fields to alter the processes you've 1225 00:50:34,480 --> 00:50:32,510 talked about well actually you've just 1226 00:50:38,740 --> 00:50:34,490 brought one up right now but to answer 1227 00:50:41,320 --> 00:50:38,750 your question for insects No yeah 1228 00:50:43,570 --> 00:50:41,330 for insects no but Ross's research and 1229 00:50:44,920 --> 00:50:43,580 others yes I mean you can play games 1230 00:50:47,260 --> 00:50:44,930 with electro magnetics and get the 1231 00:50:48,730 --> 00:50:47,270 responses however this can is usually 1232 00:50:50,079 --> 00:50:48,740 kind of scoffed at and like well you 1233 00:50:51,460 --> 00:50:50,089 know of course there's membrane 1234 00:50:52,690 --> 00:50:51,470 potentials and you're probably just 1235 00:50:54,670 --> 00:50:52,700 doing something really weird to it 1236 00:50:56,530 --> 00:50:54,680 something unnatural whereas you and I 1237 00:50:57,730 --> 00:50:56,540 might be saying oh no I don't think this 1238 00:50:59,790 --> 00:50:57,740 is unnatural at all I think there may 1239 00:51:02,079 --> 00:50:59,800 actually be something to it but 1240 00:51:05,349 --> 00:51:02,089 absolutely yes I am aware that there is 1241 00:51:07,300 --> 00:51:05,359 other research out there but I tend and 1242 00:51:08,770 --> 00:51:07,310 this may be a mistake of mine I tend to 1243 00:51:11,230 --> 00:51:08,780 stick with the entomological research 1244 00:51:13,390 --> 00:51:11,240 why because it's more convincing to the 1245 00:51:16,180 --> 00:51:13,400 entomologist so if you go too far away 1246 00:51:17,940 --> 00:51:16,190 from bugs people catch you and say well 1247 00:51:20,050 --> 00:51:17,950 you know I don't read that literature so 1248 00:51:21,930 --> 00:51:20,060 essentially you're discounted and you 1249 00:51:23,740 --> 00:51:21,940 really can't go anywhere but to bring in 1250 00:51:24,970 --> 00:51:23,750 decapod crustacean x' 1251 00:51:26,950 --> 00:51:24,980 because they're so close to their 1252 00:51:29,200 --> 00:51:26,960 arthropods they've got many strong 1253 00:51:30,730 --> 00:51:29,210 similarities between the thus in cilia 1254 00:51:33,579 --> 00:51:30,740 of insects and the eighth's the tasks of 1255 00:51:35,109 --> 00:51:33,589 the decapod crustacean x' then I think 1256 00:51:37,780 --> 00:51:35,119 that's a valid comparison to make and it 1257 00:51:39,880 --> 00:51:37,790 was a welcomed one too because I didn't 1258 00:51:41,920 --> 00:51:39,890 expect a similarity to occur it just 1259 00:51:43,030 --> 00:51:41,930 kind of fell in my lap I decided to go 1260 00:51:45,160 --> 00:51:43,040 with it and that's why I threw up a 1261 00:51:47,560 --> 00:51:45,170 couple slides for your benefit and for 1262 00:51:50,550 --> 00:51:47,570 the benefit of those who are taking a