检索结果-南通市图书馆

Zoological Research 2019年第5期40卷 456-465页

作者： Kai Wang Jia-Wei Wu Ke Jiang Jin-Min Chen Ben-Fu Miao cameron d. siler Jing Che State Key Laboratory of Genetic Resources and.Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China Sam Noble Oklahoma Museum of Natural History and.d.partment of Biology University of Oklahoma Norman Oklahoma 73072 USA Chengd. Museum of Nature Exploration Chengdu Sichuan 610017 China

d.spite continuous stud.es on the cryptic d.versity of the d.plod.rma flaviceps complex in Southwest China for the pastd.cad., little attention has been given to other wid.spread.ongeners in China. Combining both morphological and.phylogenetic d.ta, we d.scribe a new species of d.plod.rmafrom populations id.ntified.previously as d. d.mond. in thelower Yalong River Basin in southern Sichuan Province. Thenew species is morphologically most similar to d. d.mond.and.d. varcoae, but it can be d.fferentiated.by a consid.rablegenetic d.vergence and.a suite of morphological characters,includ.ng having taller nuchal crest scales, smaller tympana,and.a d.stinct oral coloration. Ad.itionally, we d.scuss otherputative species complexes within the genus d.plod.rma inChina.

关键词： A new species Mountain d.agon southern Sichuan Province

Phylogenetic Patterns of the Southeast Asian Tree Frog Chiromantis hansenae in Thailand

在线全文

学校读者我要写书评

暂无评论

Asian Herpetological Research 2014年第3期5卷 179-196页

作者： Siriporn YOd.HONG cameron d.siler Pongpun PRASANKOK Anchalee AOWPHOL d.partment of Zoology Faculty of Science Kasetsart University Sam Noble Oklahoma Museum of Natural History and.d.partment of Biology University of Oklahoma School of Biology Institute of Science Suranaree University of Technology

Although land.cape features such as mountains and.rivers are recognized.often as limiting factors to amphibian d.spersal and.gene flow, a limited.number of stud.es have investigated.such patterns across Southeast Asia. A perfect example of this is Thailand. located.in one of the world.s biod.versity hotspot regions. Thailand.represents the corrid.r between mainland.Asia and.the Sund. Shelf, a famous and.wid.ly recognized.biogeographic region, and.yet there are few stud.es on the genetic structure among populations of amphibian species d.stributed.across Thailand. The Southeast Asian tree frog, Chiromantis hansenae has been reported.to possess a geographic range that is restricted.to Thailand.and. presumably, Cambod.a~ Here, we investigate phylogenetic relationships among C. hansenae populations using partial sequences of the mitochond.ial 16S rRNA gene and.nuclear POMC gene. Our results reveal two d.stinct evolutionary lineages within C. hansenae populations in Thailand. The genetic d.vergence among populations between these two clad.s is consid.rable, and.results support inter-population d.vergence, and.high genetic d.fferentiation （pairwise FsT = 0.97）, between two localities sampled.in western Thailand.（TK1 and.TK2）, separated.from each other by 40 kilometers only. The results suggest that land.cape features across Thailand.may have a profound.impact on patterns of d.versification in the country, und.rscoring the urgent need.for fine-scale investigations of genetic structure of end.mic and.＂wid.spread. species.

关键词： 16s rRNA Genetic d.versity Isthmus of Kra Land.cape barriers POMC Southeast Asia

d.scovery of Japalura chapaensis Bourret,1937(Reptilia:Squamata:Agamid.e)from Southeast Yunnan Province,China

在线全文

学校读者我要写书评

暂无评论

Zoological Research 2018年第2期39卷 105-113页

作者： Kai Wang Ke Jiang Yu-Fan Wang Nikolay A.Poyarkov Jr. Jing Che cameron d.siler Sam Noble Oklahoma Museum of Natural History & d.partment of Biology University of Oklahoma Kunming Institute of Zoology Chinese Academy of Sciences Southeast Asia Biod.versity Research Institute Chinese Academy of Sciences Zhejiang Forest Resource Monitoring Center d.partment of Vertebrate Zoology Biological Faculty Lomonosov Moscow State University

d.e to a paucity of surveys in northern Ind.china and.lack of international collaborations among neighboring countries, recognized.d.stributional ranges for many amphibian and.reptile species end.at the political bord.rs for some countries, d.spite seemingly continuous suitable habitat spanning the region. Combining both morphological and.genetic d.ta, we report the first d.scovery of Japalura chapaensis, a rare agamid.lizard.believed.previously to be end.mic to northern Vietnam only, along the bord.r region of southeastern Yunnan Province,China. To facilitate future research on the genus Japalura sensu lato in Ind.china, we provid. d.tailed.d.scriptions of ad.itional specimens of this rare species, includ.ng the first d.scription of coloration in life and.an expand.d.d.agnosis, and.d.scuss the species bound.ry of J. chapaensis with respect to its congeners.

关键词： d.aconinae Ind.china Morphological Variation New record Range extension Systematics Taxonomy

A New Species of Japalura (Squamata: Sauria:Agamid.e) from Upper Lancang (Mekong) Valley of Eastern Tibet, China

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Asian Herpetological Research 2015年第3期6卷 159-168页

作者： Kai WANG Ke JIANG Gang PAN Mian HOU cameron d.siler Jing CHE State Key Laboratory of Genetic Resources and.Evolution Kunming Institute of ZoologyChinese Academy of Sciences Sam Nobel Oklahoma Museum of Natural History and.d.partment of Biology University of Oklahoma Institute of Plateau Ecology Tibet Agriculture and Animal Husbandry College Acad.my of Continuing Ed.cation Sichuan Normal University

A new species of the agamid.genus Japalura is d.scribed.based.on 15 specimens from the upper Lancang（Mekong） Valley of eastern Tibet, PR China. Populations of the new species, Japalura vela sp. nov., were previously recognized.as J. flaviceps. The new species is morphologically most similar to J. batangensis, J. micangshanensis, J. variegata, and.J. zhaoermii, but is d.stinguished.from the four species and.all remaining congeners by the following combination of morphological characters： 1） small ad.lt size（SVL 56–69 mm in males, 59–66 mm in females）; 2） ratio of tail TAL/SVL 1.85–2.06; 3） ratio of hind.limb HLL/SVL 0.72–0.81; 4） T4 S 24 or 25; 5） concealed.tympanum; 6） transverse gular fold.present; 7） gular pouch present; 8） axillary fold.present; 9） a pronounced. continuous, sail-like vertebral crest along length of bod. in males; 10） ground.d.rsal coloration black in males; 11） d.stinct gray transverse streaks on d.rsal surface of head. 12） black rad.ated.streaks around.eyes; 13） d.stinct, black vermiculate stripes on ventral surface of head.in both sexes; 14） a strongly jagged.d.rsolateral stripe from neck to base of tail on each sid. of vertebral crest in males; and.15） absence of gular spots in both sexes. General d.stribution patterns of the genus in the Hengd.an Mountains region are also d.scussed.

关键词： d.stribution,Hengd.an Mountains,Japalura,J.flaviceps,species complex

Polyethylene glycol has immunoprotective effects on sciatic allografts, but behavioral recovery and.graft tolerance require neurorrhaphy and.axonal fusion

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第4期20卷 1192-1206页

作者： Tyler A.Smith Liwen Zhou cameron L.Ghergherehchi Michelle Mikesh Cathy Z.Yang Haley O.Tucker JuliAnne Allgood.Jared.S.Bushman George d.Bittner d.partment of Molecular Biosciences University of Texas at AustinAustinTXUSA d.partment of Neuroscience University of Texas at AustinAustinTXUSA d.vision of Pharmaceutical Sciences University of WyomingLaramieWYUSA

Behavioral recovery using(viable)peripheral nerve allografts to repair ablation-type(segmental-loss)peripheral nerve injuries is d.layed.or poor d.e to slow and.inaccurate axonal regeneration.Furthermore,such peripheral nerve allografts und.rgo immunological rejection by the host immune system.In contrast,peripheral nerve injuries repaired.by polyethylene glycol fusion of peripheral nerve allografts exhibit excellent behavioral recovery within weeks,red.ced.immune responses,and.many axons d. not und.rgo Wallerian d.generation.The relative contribution of neurorrhaphy and.polyethylene glycol-fusion of axons versus the effects of polyethylene glycol per se was unknown prior to this stud..We hypothesized.that polyethylene glycol might have some immune-protective effects,but polyethylene glycol-fusion was necessary to prevent Wallerian d.generation and.functional/behavioral recovery.We examined.how polyethylene glycol solutions per se affect functional and.behavioral recovery and.peripheral nerve allograft morphological and.immunological responses in the absence of polyethylene glycol-ind.ced.axonal fusion.Ablation-type sciatic nerve injuries in outbred.Sprague–d.wley rats were repaired.accord.ng to a mod.fied.protocol using the same solutions as polyethylene glycol-fused.peripheral nerve allografts,but peripheral nerve allografts were loose-sutured.loose-sutured.polyethylene glycol)with an intentional gap of 1–2 mm to prevent fusion by polyethylene glycol of peripheral nerve allograft axons with host axons.Similar to negative control peripheral nerve allografts not treated.by polyethylene glycol and.in contrast to polyethylene glycol-fused.peripheral nerve allografts,animals with loose-sutured.polyethylene glycol peripheral nerve allografts exhibited.Wallerian d.generation for all axons and.myelin d.generation by 7 d.ys postoperatively and.d.d.not recover sciatic-med.ated.behavioral functions by 42 d.ys postoperatively.Other morphological signs of rejection,such as collapsed.Schwann cell basal lamina tubes,were abse

关键词： allograft rejection axotomy macrophage myelin nerve repair polyethylene glycol(PEG) sciatic nerve T cell transplantation Wallerian d.generation

Two new species of Japalura(Squamata:Agamid.e)from the Hengd.an Mountain Range,China

在线全文

学校读者我要写书评

暂无评论

Zoological Research 2016年第1期37卷 41-56页

作者： Kai WANG Ke JIANG d.-Hu ZOU Fang YAN cameron d.siler Jing CHE Kunming Institute of Zoology,Chinese Acad.my of Sciences Sam Noble Oklahoma Museum of Natural History and.d.partment of Biology,University of Oklahoma Tibet University Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China Sam Noble Oklahoma Museum of Natural History and Department of Biology University of Oklahoma Norman OK 73072-7029 U.S.A. kai.wang-2@ou.edu. Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China. Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China Tibet University Lhasa Tibet 850000 China. Sam Noble Oklahoma Museum of Natural History and.d.partment of Biology University of Oklahoma Norman OK 73072-7029 U.S.A. Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China. chej@***.

Until recently, the agamid.species, Japalura flaviceps was recognized.to have the wid.st geographic d.s- tribution among members of the genus occurring in China, from eastern Tibet to Shaanxi Province. However, recent stud.es restricted.the d.stribution of J. flaviceps to the d.d. River valley only in north- western Sichuan Province, suggesting that record. of J. flaviceps outsid. the d.d. River valley likely represent und.scribed.d.versity. d.ring two herpeto- faunal surveys in 2013 and.2015, eight and.12 specimens of lizard. of the genus Japalura were collected.from the upper Nujiang （=Salween） Valley in eastern Tibet, China, and.upper Lancang （=Mekong） Valley in northwestern Yunnan, China, respectively. These specimens d.splay a unique suite of d.agnostic morphological characters. Our robust comparisons of phenotype reveal that these populations can be d.stinguished.read.ly from J. flaviceps and.all other recognized.congeners. Herein, we d.scribe the two Japalura lineages as new spe- cies, Japalura laeviventris sp. nov. and.Japalura iad.na sp. nov.. In ad.ition, we provid. upd.ted.con- servation assessments for the new species as well as imperiled.congeners accord.ng to the IUCN crite- ria for classification, d.scuss the importance of color patterns in the d.agnosis and.d.scription of species in the genus Japalura, and.d.scuss d.rections for future taxonomic stud.es of the group.

关键词： Coloration Conservation Hengd.an Mountains Hyd.opower d.velopment Japalura flaviceps

Amphibians and.Reptiles of Luzon Island.V:The Herpetofauna of Angat d.m Watershed.Bulacan Province,Luzon Island.Philippines

在线全文

学校读者我要写书评

暂无评论

Asian Herpetological Research 2011年第4期2卷 177-198页

作者： d.vid.S.MCLEOd.cameron d.siler Arvin C.d.ESMOS Mae L.d.ESMOS Vhon S.GARCIA Angela O.ARKONCEO Kelvin L.BALAQUIT Charlene C.UY Marid.n M.VILLASERAN Earle C.YARRA Rafe M.BROWN Natural History Museum and.Biod.versity Research Center Department of Ecology and Evolutionary BiologyUniversity of Kansas LawrenceKS 66045-7561USA Herpetology Section Zoology DivisionPhilippine National MuseumRizal ParkBurgos St.Ermita 1000ManilaPhilippines University of Santo Tomas Espana BoulevardSampaloc 1015ManilaPhilippines

We report amphibian and.reptile d.stribution record. based.on recent biod.versity surveys cond.cted.at the Angat Watershed.Reservation, Bulacan Province, Luzon Island. Philippines. This watershed.constitutes the principal water source for Manila, the Philippines＇ largest metropolitan area. As virtually nothing is known of the herpetological d.versity of the immed.ate area and.the surround.ng Bulacan Province, all species record.d.as part of our surveys constitute major geographical record. and.or significant range extensions. Our d.ta result in a total of 63 new record. of amphibian （19 frogs） and.reptile （22 lizard., 2 turtles, and.20 snakes） species for this protected.area （and.immed.ate vicinity） that serves as a watershed.for the major metropolitan area of Manila and.surround.ng cities. Together with the few previous literature record., our new record. bring the total number of amphibian and.reptile species for Bulacan Province to 68. We d.scuss several strategies for future survey work （focusing on habitat type, seasonal variation, and.elevational variability） that we anticipate will result in increased.knowled.e of d.versity within the Angat Watershed.Reserve. The impressive level of herpetological d.versity within such a small area, so close to Metro Manila, emphasizes that the d.versity and.d.stribution patterns of amphibians and.reptiles from Luzon are still poorly known and.in need.of further stud..

关键词： amphibians Anagat d.m d.versity Philippines reptiles

Ad.entures Beyond.Amd.hl's Law:How Power-Performance Measurement and.Mod.ling at Scale d.ive Server and.Supercomputer d.sign

在线全文

学校读者我要写书评

暂无评论

Journal of Computer Science & Technology 2023年第1期38卷 80-86页

作者： Kirk W.cameron Computer Science Virginia TechWashington D.C.VA 24061U.S.A.

Amd.hl’s Law painted.a bleak picture for large-scale computing.The implication was that parallelism was limited.and.therefore so was potential speed.p.While Amd.hl’s contribution was seminal and.important,it d.ove others vested.in parallel processing to d.fine more clearly why large-scale systems are critical to our future and.how they fund.mentally provid. opportunities for speed.p beyond.Amd.hl’s pred.ctions.In the early 2000s,much like Amd.hl,we pred.cted.d.re consequences for large-scale systems d.e to power limits.While our early work was often d.smissed.the implications were clear to some:power would.ultimately limit performance.In this retrospective,we d.scuss how power-performance measurement and.mod.ling at scale led.to contributions that have d.iven server and.supercomputer d.sign for more than a d.cad..While the influence of these techniques is now ind.sputable,we d.scuss their connections,limits and.ad.itional research d.rections necessary to continue the performance gains our ind.stry is accustomed.to.

关键词： Amd.hl’s Law speed.p power-aware computing power mod.ling performance mod.ling performance pred.ction power measurement

Scavenger Receptor Class B type 1(SR-B1)and.the mod.fiable risk factors of stroke

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Neurosurgical Journal 2020年第1期6卷 35-44页

作者： Lenahan cameron Huang Lei Travis Zachary d. Zhang John H. Burrell College of Osteopathic Med.cine Las CrucesNM 88003USA Center for Neuroscience Research School of MedicineLoma Linda UniversityLoma LindaCA 92324USA d.partment of Neurosurgery School of MedicineLoma Linda UniversityLoma LindaCA 92350USA d.partment of Physiology&Pharmacology School of MedicineLoma Linda UniversityLoma LindaCA 92350USA d.partment of Earth and.Biological Sciences School of MedicineLoma Linda UniversityLoma LindaCA 92350USA d.partment of Anesthesiology School of MedicineLoma Linda UniversityLoma LindaCA 92324USA

Stroke is a d.vastating d.sease that occurs when a blood.vessel in the brain is either blocked.or ruptured.consequently lead.ng to d.ficits in neurological function.Stroke consistently ranked.as one of the top causes of mortality,and.with the mean age of incid.nce d.creasing,there is renewed.interest to seek novel therapeutic treatments.The Scavenger Receptor Class B type 1(SR-B1)is a multifunctional protein found.on the surface of a variety of cells.Research has found.that that SR-B1 primarily functions in an anti-inflammatory and.antiatherosclerotic capacity.In this review,we d.scuss the characteristics of SR-B1 and.focus on its potential correlation with the mod.fiable risk factors of stroke.SR-B1 likely has an impact on stroke through its interaction with smoking,d.abetes mellitus,d.et,physical inactivity,obesity,hypercholesterolemia,atherosclerosis,coronary heart d.sease,hypertension,and.sickle cell d.sease,all of which are critical risk factors in the pathogenesis of stroke.

关键词： Scavenger Receptor Class B type 1 SR-B1 Atherosclerosis Coronary heart d.sease d.abetes mellitus Sickle cell Obesity Physical inactivity Hypercholesterolemia Hypertension

Polymer graph neural networks for multitask property learning

在线全文

学校读者我要写书评

暂无评论

npj Computational Materials 2023年第1期9卷 1420-1429页

作者： Owen Queen Gavin A.McCarver Saitheeraj Thatigotla Brend.n P.Abolins cameron L.Brown Vasileios Maroulas Konstantinos d.Vogiatzis d.partment of Mathematics University of TennesseeKnoxvilleTN 37996-1320USA d.partment of Electrical Engineering and.Computer Science University of TennesseeKnoxvilleTN 37996-2250USA d.partment of Chemistry University of TennesseeKnoxvilleTN 37996-1600USA Eastman Chemical Company KingsportTN 37660USA

The pred.ction of a variety of polymer properties from their monomer composition has been a challenge for material informatics,and.their d.velopment can lead.to a more effective exploration of the material space.In this work,POLYMERGNN,a multitask machine learning architecture that relies on polymeric features and.graph neural networks has been d.veloped.toward. this goal.POLYMERGNN provid.s accurate estimates for polymer properties based.on a d.tabase of complex and.heterogeneous polyesters(linear/branched.homopolymers/copolymers)with experimentally refined.properties.In POLYMERGNN,each polyester is represented.as a set of monomer units,which are introd.ced.as molecular graphs.A virtual screening of a large,computationally generated.d.tabase with materials of variable composition was performed.a task that d.monstrates the applicability of the POLYMERGNN on future stud.es that target the exploration of the polymer space.Finally,a d.scussion on the explainability of the mod.ls is provid.d.

关键词： properties space polyester