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Can our genes tell the story of our divergence?

Since humans and chimpanzees forged separate evolutionary paths some 5 million to 6 million years ago, we shed our hirsute coat and heavy brow, mastered bipedal locomotion, and acquired a knack for abstract thought while our next of kin learned to use tools, and developed the skills to construct tree-bound nests high above the forest floor. We differ by just a tad over 1% at the DNA sequence leve...

Divergent life history shapes gene expression in brains of salmon

Scientists working with salmon have found that gene expression in the brain can differ significantly among members of a species with different life histories. Their study indicates that roughly 15 percent of Atlantic salmon genes show differential expression in males who migrate from their freshwater birthplaces to mature in oceans versus those who do not leave the freshwater environment to matur...

Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants

Sexual reproduction can be thought of as a cooperative process in which two individuals come together to produce a new individual. It can also be viewed as a process in which two parties with differing interests, investment, and background interact to produce a new individual. From the former perspective, parental interests are unified (both wish to produce vigorous offspring), while the latter s...

Convergent evolution of molecules in electric fish

Having a set of extra genes gave fish on separate continents the ability to evolve electric organs, report researchers from The University of Texas at Austin. Dr. Harold Zakon and colleagues, in a paper recently published in Proceedings of the National Academy of Sciences, show that African and South American groups of fish independently evolved electric organs by modifying sodium channel...

Unraveling where chimp and human brains diverge

Six million years ago, chimpanzees and humans diverged from a common ancestor and evolved into unique species. Now UCLA scientists have identified a new way to pinpoint the genes that separate us from our closest living relative ?and make us uniquely human. The Proceedings of the National Academy of Sciences reports the study in its Nov. 13 online edition. "We share more than 95 percen...
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Barriers will not stop convergence of medical technologies

During residency, which is not the free-for-all carnival that Gray's Anatomy would have us believe, one of the most important judgment calls that is learned is whether the patien...

Personalized medicine and technology convergence

It's been one year since the debut of MedTech Futures and it has been a pleasure and a privilege to have the opportunity to share ideas with through this forum. As this column enters its second year, I wanted to take an opportunity to briefly summarize some of the perspectives over the past year and also discuss a topic of great timeliness and importance - namely pe...

IP Surveillance - Another Piece of the Converged Network

IP surveillance, has emerged as a new leading security solution that combines networking infrastructure and video equipment to provide a more holistic and efficient approach to security. It is a logical step in the quest for completely converged networks. Most security imperatives from an IT perspective have been focused on firewalls, VPNs, intrusion detection and a host of similar compo...

WTN Visions: Convergence is changing business

Convergence, the architecture for voice, video and integrated data that combines business and technology strategies, is redefining the word virtual. It is no longer a murky technology concept it is a leading-edge business solution. By eliminating boarders, physical boundaries, brick and mortar, convergence allows companies to communicate more completely and at a lower cost, thus increasing produ...
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Convergent evolution

describes the process whereby organisms not closely related independently acquire similar characteristics while evolving in separate and sometimes varying ecosystems. wings</ ...

Convergent evolution

describes the process whereby organisms not closely related independently acquire similar characteristics while evolving in separate and sometimes varying ecosystems. wings</ ...
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Convergent evolution

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Convergence

ary development of similar external morphological <a href="/ ?q=/ Biology-Diction...
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Holy Grail Of Dermatologists On The Verge Of Discovery

The hoary saying that there is no cure for jealousy or baldness may be a thing of the past . Scientists from the University of Pennsylvania have reported in the journal Nature, that it may indeed be possible to grow new hair follicles. The findings, which stemmed from a study examining wound healing in animal models, showed that mice were able to grow new hair follicles over skin newly...
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(Date:11/18/2008)... Chairman, Tony Strange Appointed to CEO position ... , MELVILLE, N.Y., Nov. 18 /PRNewswire-First... GTIV ), a leading provider of comprehensive home...f Directors has finalized a management succession ...l become the Company,s Chief Executive Officer in ...
(Date:11/18/2008)...echanisms, scientists show , , TUESDAY, ...egulated by different molecular mechanisms, accord...es the long-held belief that itching is a less int...This finding could prove important in improving tr...g Chen, of Washington University,s Pain Center, in...
(Date:11/18/2008)...ed genes and understanding how they work has been ...t Cold Spring Harbor Laboratory (CSHL), five diffe...tise to speed up the rate of discovering cancer-re...g animals. , The result of the collaborative e...tic screen that in a preliminary test succeeded in...
(Date:11/18/2008)...f dangerous side effect , , TUESDAY, No...rug Avastin appears to be associated with a greate...atients with a variety of cancers. , This risk ...cts associated with the drug, including clots in t...tion. , It has previously been recognized that ...
Breaking Medicine News(10 mins):Health News:Gentiva Health Services Confirms Management Succession 2Health News:Gentiva Health Services Confirms Management Succession 3Health News:Gentiva Health Services Confirms Management Succession 4Health News:Itching Not a Less Intense Form of Pain 2Health News:Cold Spring Harbor science teams identify 13 new tumor-suppressor genes in liver cancer 2Health News:Cold Spring Harbor science teams identify 13 new tumor-suppressor genes in liver cancer 3Health News:Cold Spring Harbor science teams identify 13 new tumor-suppressor genes in liver cancer 4Health News:Cancer Drug Ups Risk of Clots in Veins 2Health News:Cancer Drug Ups Risk of Clots in Veins 3
(Date:11/18/2008)...erials engineers have created a new type of membra..., might be used for environmental cleanup, water p...ew technology would last longer than conventional ... attracting water while beading oil, traits that a...d the material to a glass filter commonly used in ...
(Date:11/18/2008)...chaft (DFG, German Research Foundation) is intensi...rchers. At its autumn meeting in Bonn the Grants C...to the establishment of 13 additional Research Tra...h Training Groups. These enable doctoral researche... "We are particularly pleased about the first Inte...
(Date:11/17/2008)...− A new study confirms that exercise can rev...neural stem cells in the hippocampus of the mouse ...cise restores a brain chemical which promotes the ...eural stem cells and progenitor cells differentiat...different functions, a process called neurogenesis...
(Date:11/17/2008)...c clues led a team of Boston University biomedical...ics kill bacteria. The findings could help rejuven...ew antibiotic targets within bacterial cells. , ...ent antibiotics work and how those insights can po...cs," said James Collins, Professor of Biomedical...
Breaking Biology News(10 mins):New filtering technology has environmental, industrial applications 2New filtering technology has environmental, industrial applications 3National and international doctoral training 2National and international doctoral training 3National and international doctoral training 4National and international doctoral training 5National and international doctoral training 6National and international doctoral training 7Exercise increases brain growth factor and receptors, prevents stem cell drop in middle age 2Exercise increases brain growth factor and receptors, prevents stem cell drop in middle age 3Biomedical engineers' detective work reveals antibiotic mechanism 2Biomedical engineers' detective work reveals antibiotic mechanism 3Spectral announces exclusive distribution agreement in Russia for its EAA 28TM 29 Sepsis Diagnostic Assay 6475 1Spectral announces exclusive distribution agreement in Russia for its EAA 28TM 29 Sepsis Diagnostic Assay 6475 2Red Eye Rescue to Help Keep Air Travel From Ruining Your Image 23671 1Red Eye Rescue to Help Keep Air Travel From Ruining Your Image 23671 2New Research Shows Cadaver Tissue Fails Nearly a Quarter of the Time in Young Athletic ACL Reconstruction Patients 23669 1New Research Shows Cadaver Tissue Fails Nearly a Quarter of the Time in Young Athletic ACL Reconstruction Patients 23669 2New Research Shows Cadaver Tissue Fails Nearly a Quarter of the Time in Young Athletic ACL Reconstruction Patients 23669 3Dr Emil Chynn Featured on FOX News 28WNYW TV 29 Park Avenue Laser Vision Center Recognized for Creative Internet Marketing 23665 1Dr Emil Chynn Featured on FOX News 28WNYW TV 29 Park Avenue Laser Vision Center Recognized for Creative Internet Marketing 23665 2Dr Emil Chynn Featured on FOX News 28WNYW TV 29 Park Avenue Laser Vision Center Recognized for Creative Internet Marketing 23665 3
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