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Tag: "morphology" at biology news

Open microfluidic and nanofluidic systems

..., it was not known how to produce a certain liquid morphology since there was no systematic theory for the dependence of this morphology on the materials properties and on the channel design. Such a theory has now been developed. This th...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...ovel method to simultaneously control the size and morphology of nanoparticles, which can be used in pharmaceutical synthesis and novel biomedical applications. This groundbreaking research was recently featured in the leading Chemistry journal, Angewandte Chemie, and a United States patent has been filed on t...

A frog's life is food for thought

...gs," she said. "This rate of rectification of gut morphology is virtually unparalleled with the small intestine having increased in mass by 450 percent within just 36 hours." The results of Ms Cramp's study could have important implications for human survival. "Human survivors of starvation can endure the ho...

Stealth Worms May Improve Insect Pest Control

...curately identified and analyzed using traditional morphology (structure and function) techniques and through molecular screening, including PCR (polymerase chain reaction) and DNA sequence analysis. The researchers determine the nematode's temperature and moisture requirements, the insect hosts it colonizes a...

Vitamin A's paradoxical role in influencing symmetry during embryonic development revealed

...types that interact to form structures with proper morphology and function," Belmonte added. ...

Certain fish have a special mating preference

...rtilization toward males with a particular genital morphology has been largely responsible for the generation of...s boundaries. Evolutionary changes in male genital morphology between populations may result in reproductive incompatibility when populations merge again in the f...

IMF Launches World’s First DNA Database for Myeloma Patients

...rtilization toward males with a particular genital morphology has been largely responsible for the generation of...s boundaries. Evolutionary changes in male genital morphology between populations may result in reproductive incompatibility when populations merge again in the f...

Virginia Tech, Nanjing Institute researchers discover half-billion year-old fossils

...imilar life position on ocean floor. "In fact, the morphology of the new fossils is unlike any living macroscopic life," Xiao said, "and at this time it is still uncertain how the Ediacara fossils from South China are related to other Ediacara organisms and to living organisms." But the new fossils surely will...

Weapon performance determines mating success in the collared lizard

...volution of weapon morphology. As such, the use of morphology as a proxy for performance and its presumed extensions to fitness should be based, whenever possible, on empirical morphologyperformance relationships. ...

A new window into structural plasticity in the adult visual cortex

...ons, allowing Lee et al. to track the location and morphology of these neurons using two-photon microscopy. Time-lapse images of six pyramidal neurons and eight nonpyramidal neurons in 13 mice were taken over the course of four to ten weeks. The length of dendritic branch tips was measured over time to evaluate...

New understanding of regeneration gained by Forsyth scientists

...tiation of growth and an imposition of the correct morphology upon the regenerating tissue. Understanding this process is crucial for both the basic biology of pattern formation, and for developing novel biomedical approaches. Planaria have powerful regeneration capability that makes them ideal for studying th...

The evolution of food plants: Genetic control of grass flower architecture

...sses, it is common to find that diversification of morphology between closely related organisms has involved changes in how transcription factors are regulated or how transcription factors interact with their target genes. An understanding of the ramosa pathway in the grass family will be important in understan...

Liquid crystals show promise in controlling embryonic stem cells

...Palecek, is to just look at the cells and use cell morphology as a cue. A more accurate method uses molecular markers. Antibodies are placed against these markers to determine if they bind to the cell. That system, while more accurate, does not provide real time data and cells often have to be killed in order t...

Habitat microstructure drives salamander metamorphosis

...have a major influence on patterns of development, morphology and evolution. Ronald Bonett and Paul Chippindale from the University of Texas at Arlington, Texas, USA, analysed the type, size and degree of sorting of streambed sediments for 22 populations, 11 paedomorphic and 11 metamorphic, of the plethodontid...

Triple threat polymer captures and releases

...don't know if there is some reorganization of the morphology of the material or whether the guests partition to different domains at different temperatures." Wooley says that the results of her research with the polymers ?the promoted release, the anti-fouling application ?are "strange, if not weird, but th...

Recent, rapid climate change is driving evolution of animal species

...e ability of individuals to modify their behavior, morphology or physiology in response to altered environmental conditions." However, adds Holzapfel, "phenotypic plasticity is not the whole story. Studies show that over the past several decades, rapid climate change has led to heritable, genetic changes in a...

Evolution reveals an independent route for diversity in animal form

...daria, a group of marine animals noted for diverse morphology among its constituent species, actually lacks the ... animals, and much of the variation seen in animal morphology has been attributed to evolutionary variations on how the Hox system is implemented during developme...

Stomach receptor for H. pylori discovered

... binding induces an immune response and alters the morphology and behavior of the epithelial cells due to injection of bacterial proteins into the cells. This interaction can lead to peptic ulcer disease, gastric adenocarcinoma, and non-Hodgkins lymphoma of the stomach. "Ulcers are a breach in the gastric...

Extreme environment changes fish appearance

... raising the temperature just a few degrees shifts morphology dramatically," Lema said. The findings have implications for conserving species, Lema said. On one hand, the fish may be more adaptable to changing conditions than thought. But refuge-bred fish might well die if reintroduced directly to Devil's...

Tearing down the fungal cell wall

...bosomal peptide synthetase is integral to conidial morphology further illustrates the versatile and essential role of these secondary metabolites in fungal biology. For years long ignored, the function of natural products is rapidly becoming one of the hot topics in fungal biology; the findings reported in this...

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