Discovery of variations in resistance to sulfadoxine across Africa

... drug may vary across the continent. They also suggest that economic and transport infrastructures may have played a role in governing recent parasite dispersal across the continent through their influence on the volume of human migration. Dr. Roper comments: 'Our findings suggest that the effectiveness of ...

Dearth of Data on Capabilities May Be Hurting ER Care

...ical issue in a medical crisis, as is the case with a heart attack or stroke, the nearest facility is not always the best to handle the situation. The dispersal of the U.S. population and a lack of knowledge about the capabilities of individual hospitals make the situation even graver. "In those life-thre...

First Americans Arrived on 2 Separate Paths

...based on archeological evidence and environmental records suggest that humans entered the Americas from Beringia as early as 15,000 years ago, and the dispersal occurred along the deglaciated Pacific coastline," researcher Antonio Torroni said in a news release issued by the journal's publisher. "Our study now...

'VH1 Rock Honors: The Who' Tickets Go on Sale Sunday, June 8 with Proceeds to Benefit the Efforts of Multiple Charities

...O charity was started by The Who in 1976 and has now evolved into a private dispersal charity focused more than ever on 'survival' of drug and alcohol damage, do...00 pounds Sterling since inception, and been indirectly responsible for the dispersal of another similar amount through Double O Promotions, which channels a lot...

ASPB engages Latin America colleagues at Annual Meeting in Merida, Mexico June 22-25

.... Symposium II: Maize Biology Sponsored by Monsanto - Organizers: Sarah Hake and Jean Phillipe Vielle Calzada. John Jones The origins and early dispersal of Maize: The Palynological and Archaeological Evidence. Vicki Chandler Epigenetic Silencing Across Generations. Erik Vollbrecht The maize inflores...

Seniors, minorities to have largest impact on tomorrow's America

...in certain regions. Until recently, these populations were highly clustered in a few big metropolitan areas. But statistics show that there has been a dispersal of immigrants away from the traditional magnets of Los Angeles, New York, Chicago, and Miami to new destinations in all parts of the country. ...

Inhaled tuberculosis vaccine more effective than traditional shot

...In the aerosol vaccine, particles form at micrometer and nanometer scales and in spherical and elongated shapes, a combination that appears to improve dispersal in the mouth. While commonly used with food, cosmetics, and pharmaceuticals, this spray drying of small and large molecules is seldom used for dryi...

Size and Position of Floral Anther Plays a Vital Role in Pollination

...pens to disperse the seed, how the fruit is positioned to attract potential dispersers or when it falls to the ground. The method and timing of pollen dispersal from a plant can determine whether or not a plant modified to resist an insect pest will also have an effect on other more beneficial insects. ...

UCI Scientists Reconstruct Migration of Avian Flu Virus

...source of many H5N1 strains that have spread to other provinces and countries. To the south in nearby Indochina, the strains appear largely limited to dispersal among local areas. Genetic sequences the scientists analyzed suggest that parallel evolution of different H5N1 strains lets the virus infect and c...

Germ - Chemo Combo Fights Cancer

...ation treatment is that the bacteria expose the tumors to six times the amount of chemotherapy than is usually the case by improving the breakdown and dispersal of the chemotherapy’s fatty package at the tumor site. The investigators repeated experiments using two packaged chemotherapy drugs -- doxorubic...

Dispersal in Medical Dictionary

Spores

... In biology, a spore is a reproductive structure that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions. Spores form part of the life cycles of many bacteria, plants, algae, fungi... ...

Dispersal in Biological News

Global warming increasing the dispersal of flora in Northern forests

As a result of stronger winds caused by global warming, seeds and pollen are being carried over longer distances. An increase in temperature of only a couple of degrees may increase the dispersal of plants in Northern forests and the spread of plant species into forest clearings after felling or f...

DNA analysis shows true dispersal of protozoa

The embargo for this release has been changed to 7 p.m. EST Sept. 12. In contrast to previous findings, it seems that the global distribution of macro- and microorganisms might be similar. A study in the online open access journal, BMC Evolutionary Biology, shows that some protozoa are globa...

C. difficile spores spread superbug

...s in the faeces of humans. These bacterial spores are essentially dormant cells with protective outer layers making them well-adapted for survival and dispersal in a wide range of environmental conditions. When humans shed spores in their faeces, those spores are capable of surviving dormant in the environment...

Domestication of Capsicum annuum chile pepper provides insights into crop origin and evolution

...ong distances. Less genetic diversification was seen in wild populations of C. annuum from distant locales, perhaps as a result of long-distance seed dispersal by birds and mammals. Across the three loci studied, Dr. Kim and colleagues found an average reduction in diversity of 10% in domesticated indivi...

CU-Boulder study shows 53 million-year-old high Arctic mammals wintered in darkness

...tural History and chief study author. The study has implications for the dispersal of early mammals across polar land bridges into North America and for moder...heres in the high Arctic was a "behavioral prerequisite" for their eventual dispersal across high-latitude land bridges that geologists believe linked Asia and E...

Google Earth aids discovery of early African mammal fossils

...ugh to pin that down yet," Gunnell said. "But when these animals are studied in detail, they should lead to a better understanding of biogeography and dispersal events between Asia and Africa and between North Africa and the rest of the African continent." ...

You don't call, you don't write: Connectivity in marine fish populations

...National Academy of Sciences documents how larval dispersal connects marine fish populations in a network of m...orrold and his colleagues to map and calculate the dispersal of 122 clownfish with detail never before achieved...one and the anemone in which the juvenile settled, dispersal was simply the distance between those two hosts. ...

Researchers examine role of climate change in disease spread

...tic livestock are being moved around, and midges can be spread great distances quickly by the wind," Higgs said. "But it seems clear that Bluetongue's dispersal has been driven by the northward expansion of Culex imicola, and that climate change may have contributed to that. If average temperatures increase in...

February 2009 Geology and GSA Today media highlights

...riability of the worldwide late Holocene droughts. A New Late Cretaceous macrobaenid turtle with Asian affinities from the High Canadian Arctic: dispersal via ice-free polar routes Deborah Vandermark et al., Department of Earth & Environmental Sciences, University of Rochester, Rochester, New York 14627...

Another reason to drink a nice cup of shade-grown joe

...agricultural systems, which do not provide habitat for seed dispersers, and thus limit the distance plant seeds can move. By supporting important seed dispersal processes, shade coffee farms maintain plant population gene flow across fragmented habitats." Gene flow refers to the transfer of genes from one p...

Dispersal in Biological Technology

Model predicts evolution of Mediterranean landscape following fires

...dicts the most probable way in which vegetation will develop according to the variables introduced. It takes into consideration parameters such as the dispersal of plants (by shoots or seeds), their distribution over space and time, and the resources they compete for (primarily light and water). Such ecosys...

Microsoft scientist highlights urgent need for new computer models to address climate change

... paper published in Science today, "Animal vs Wind dispersal and the Robustness of Tree Species to Deforestatio... because animals provide trees with an intelligent dispersal mechanism, travelling and distributing seeds between areas of remaining forest. In contrast, a wind dispersal method is more susceptible to habitat loss, as see...

The Centers for Disease Control & Prevention Signs Vaccine Storage and Distribution Contract with Sentry Logistic Solutions

...e-sensitive pharmaceutical products. Ensuring product integrity, supply chain security and fast, efficient distribution is critical in the storage and dispersal of disease-preventing vaccines. "Sentry's vaccine storage and distribution services were developed in an effort to help government entities, hospita...

Montana State University lab gives early warnings about biological invaders

...st detectors." Having many people able to help track the development and dispersal of threats is a huge contribution to keeping agriculture and Americans safe...he data allows answers to questions such as: What is the path of the pest's dispersal since it was first detected" What are the geographical and climatic conditi...

If my mom designed a computer

...little increment of flagrant alarmism that will reverse the entropy of attention. In practice, every such attempt only increases the rate of attention dispersal rather than decreasing it. That not-so-simple truth is at the root of an Information Technology conundrum. You can do all the business aligning an...

Single-Cell Complementation of Barley Mlo Mutants Using a PDS-1000/He Hepta System

...e fits into the shocking chamber of the PDS-1000/He unit and splits the helium shock wave over 7 outlets, permitting a more even dispersal of DNA-coated particles and a greater target area. Methods Plant and Fungal Material Leaves...

Transfection Reagent Selector Kit Handbook

... Primary cell cultures arise from the outgrowth of migrating cells from a piece of tissue or by enzymatic, chemical, or mechanical dispersal of the tissue. Primary cell cultures are morphologically most similar to the parent tissue. Finite cell line ...

Dispersal in Biological Definition

Lichen

...us and photobiont living together. Reproduction Lichens most frequently reproduce asexually, either by vegetative reproduction or through the dispersal of diaspores containing algal and fungal cells. Soredia (sing. soredium ) are small groups of algal cells surrounded by fungal filaments that form ...

Population

...ew. Population may also mean the process of populating a geographic area, as by procreation or immigration. See also Biological dispersal List of countries by population Overpopulation World population External links Phishare.org (2005). Population and Health I...

Species

...e width of the hybrid zone relative to the typical dispersal distance of the organisms in question. The dispersal distance of oaks , for example, is the distance t... squirrel can be expected to carry an acorn; the dispersal distance of Numbats is about 15 kilometres, as t...

Dispersal in Biological Dictionary

Dispersal

Biological dispersal refers to a species movement away from an existing population or away from the parent organism. Through simply moving from one habitat patch to another, the dispersal of an individual has consequences not... The description of entropy as energy dispersal provid...

Megasporangium

... ovule ... The seed coat's most important function is to provide _.a) a non-stressful environment for the megasporangium (b) the means for dispersal (c) dormancy (d) a ... - ovary - endospern - megasporangium - megagametophyte more then one possible answer pleasr only answer iif u are 1...

Cladogenesis

...e than ... This suggests that their cladogenesis was associated with the final closure of this seaway. ... Cladogenesis as a result of founder dispersal may be more ... ...