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length in Biological News

The last supper of the hominids establishes the times they lived at the sites

... method has allowed the establishment of the length of human occupations at archaeological sites. The ... forward which allows us to establish the relative length of the human occupations at archaeological sites ... has allowed the researchers to estimate the length of the occupation of the site from the Lower ...

Mystery of bat with an extraordinary nose solved

... crest), and it's roughly 9 millimeters in length nose. The typical horseshoe bat's nose is half ... he says his computer modeling shows the length of the paradoxolophus bat's nose stops at the ... method, we found that the natural nose length has a special value: All shortened noses provided ...

Scientists announce top 10 new species, issue SOS

... long (an insect from Malaysia with an overall length of 22.3 inches or 56.7 centimeters) the very old ... seahorse Hippocampus satomiae with a standard length of 0.54 inches (13.8 millimeters) and an ... list as the world's longest insect with a body length of 14 inches (36.6 centimeters) and ...

Scientists announce top 10 new species; issue SOS

... long (an insect from Malaysia with an overall length of 22.3 inches or 56.7 centimeters) the very old ... seahorse Hippocampus satomiae with a standard length of 0.54 inches (13.8 millimeters) and an ... list as the world's longest insect with a body length of 14 inches (36.6 centimeters) and ...

Penn biologists demonstrate that size matters... in snail shells

... lapillus , the Atlantic dogwhelk, is that shell length increased at all 19 sites where samples were ... against shell-crushing predators, grow in length to a size beyond the abilities of the crab. ... shell length, shell lip thickness, aperture length and aperture width of N. lapillus shells from ...

More food at lower cost

... Cell Biology , has shown how to increase the length of root hairs on plants, potentially improving ... root hair is a single, elongate cell and the length of each hair depends on having an adequate supply ... The new understanding of how to increase the length of roots hairs, rather than their numbers, will ...

Organic corn: Increasing rotation complexity increases yields

... three organic systems differed in crop rotation length and complexity. The study revealed that corn ... systems. Among organic systems crop rotation length and complexity had a strong impact on corn grain ... weed competition with increasing crop rotation length and complexity. Crop ...

Spin control: New technique sorts nanotubes by length

... technique to sort batches of carbon nanotubes by length using high-speed centrifuges. Many potential ... are taken up in cells depends critically on length (see Study: Cells Selectively Absorb Short ... place, and in optical applications, a nanotubes length determines how strongly it will absorb or emit ...

Osteoarthritis risk linked to finger length ratio

... common form of arthritis. Index to ring finger length ratio (referred to as 2D:4D) is a trait known for ... left hands. Researchers then assessed the 2D:4D length ratio from radiographs using three methods: a ... assessed the relationship between 2D:4D length ratio and OA. Compared with the other finger ...

MIT, others ask 'What would E.T. see?'

... out what our rotation rate is that is, the length of our day, says Sara Seager, associate professor ... show up regularly once each day, whatever the length of that day might be. Once the days length is determined, then any variations in that period ...

Research cautions to catch-and-release in less than 4 minutes

... catch) longer than four minutes, as well as the length of exposure to air, will result in a proportional ... in catch-and-release settings: 1) Minimize the length of time spent angling the fish 2) Minimize the length of time the fish is exposed to air after being ...

Flexible neck in cell-receptor DC-SIGN targets more pathogens

... force-distance measurements the researchers determined DC-SIGN's neck length as 28 nanometers (a nanometer is 1 billionth of a meter), in agreement ... and theoretical estimates by other researchers, which placed the neck length between 20 and 30 nanometers. When the protein binds to a pathogen, ...

Study may aid efforts to prevent uncontrolled cell division in cancer

... The researchers show that even though both cell volume and the length of the contractile ring are reduced during successive rounds of embryonic ... into two daughter cells. In early embryogenesis, cell volume and the length of the contractile ring around the cell middle are reduced at each ...

Sulphur in just one hair could blow a terrorist's alibi

... and electrons but different numbers of neutrons) vary throughout the length of a single hair. The mid-term objective is to be able to use these ... experiment The researchers collected hair samples of more than 4cm in length donated by three volunteers. Two were permanent residents in the United ...

Did the North Atlantic fisheries collapse due to fisheries-induced evolution?

... In addition to the molecular results, the study also demonstrates that the length and age at which the fish become mature have decreased. So-called "probabilistic maturation reaction norms" show that the length at which there is a 50% probability of becoming mature, has, on average, ...

Does mom know when enough is enough?

... weight, maternal BMI, infant weight gain from birth to 3 months, infant length gain from birth to 3 months, the estimated number of feeds per day, the ... birth weight, maternal BMI, infant weight gain from 3 to 6 months, infant length gain from 3 to 6 months, maternal sensitivity to infant signals at 6 ...

American Chemical Society's weekly PressPac -- April 29, 2009

... ringed seals between 1973 and 2007. They then compared the levels to the length of the so-called "summer ice-free season," a warm period marked by ... hispida) from the Western Canadian Arctic since 1973: Associations with length of Ice-Free Season" DOWNLOAD FULL TEXT ARTICLE: ...

Simulated gene therapy

... entering cells. They varied parameters like the dendrimer size and the length of the DNA they carry. Modeling these parameters on a computer is a fast, ... like the charges of the dendrimers and their target cell membranes, the length of DNA, and the concentration of surrounding salt. Their work has ...

Field Museum paleontologist leads study on two new dinosaurs from China

... and weighed close to 600 pounds. It had a skull over a foot and half in length and armed with over 70 teeth. "Although impressive by today's standards, ... Beishanlong was equipped with hand claws up to six inches in length and relatively powerful forelimbs compared to most other ornithomimosaurs. ...

BioScience tip sheet, March 2009

... desertification, as well as its remediation, are driven by changes in the length of connected pathways for the movement of fire, water, and soil resources. Natural processes increase the length of connected pathways. Management of connectivity is essential to ...

A budding role for a cellular dynamo

... raise the curtain on how this actin maintains just the right filament length to keep the cell healthy and happily dividing. Using baker's yeast as ... all in the lab of biologist Bruce Goode, set out to discover how the length of actin fibers is controlled. By answering this question, the scientists ...

Historical photographs expose decline in Florida's reef fish, new Scripps study finds

... in early photographsand their decline from nearly two meters (6.5 feet) in length in the 1950s to contemporary catches of small fish such as snappers ... (43.8 pounds) to 2.3 kilograms (5 pounds) from 1956 to 2007. The average length of sharks declined by more than 50 percent in 50 years, the photographs ...

World's largest snake discovered in fossilized rainforest

... at Indiana University, used the ratio between vertebral size and the length of existing snakes to estimate that this boa-like snake must have reached 13 meters (42 feet) in length and weighed more than a ton. Titanoboa , as it is now called, is the ...

Dolphin population stunted by fishing activities, Scripps/NOAA study finds

... the proportion of adult animals in the photographs with a calf, and the length at which calves disassociated from their mothers (a measure of the length at which the calves stop nursing), declined with increasing fishing ....

OSA's ISP launches with research on breathing disorders and congenital heart defects

... ability of doctors to measure the extent of stenosis -- the diameter and length of the narrowed section of airway. Making this measurement accurately ... tomography (aOCT), can accurately measure the shape, diameter and length of the airways inside the lungs, even as they expand and contract during ...

How 'secondary' sex characters can drive the origin of species

... eastern Australia, exhibit substantial changes in both horn and genitalia length -- as much as 3.5 times, in terms of an "investment" index the scientists ... that could prime populations for reproductive isolation." Horn length and shape can change for many reasons, Moczek says. Among densely ...

NHGRI seeks DNA sequencing technologies fit for routine laboratory and medical use

... is to determine the sequence of a piece of DNA about 1000 base pairs in length using solid-state nanopores. Stuart Lindsay, Ph.D., Arizona State ... along with new methods to restart the sequencing reaction, to improve the length and quality of DNA information produced by sequencing-by-synthesis. ...

American Chemical Society's Weekly PressPac -- July 30, 2008

... are reporting that the insect's long, flexible legs have an optimal length that keeps it afloat. Their report is scheduled for the August 19 issue of ... can support on a liquid surface without sinking. He found that as the length of the cylinder increases, the maximum load at first increases but then ...

World's smallest snake found in Barbados

... For example, the hatchlings of the smallest snakes are one-half the length of an adult, whereas the hatchlings of the largest snakes are only one-tenth the length of an adult. The Barbados snake is no exception to this pattern. It ...

CMV infections affect more than just patients with compromised immune systems, researchers find

... help cut down on reactivation of CMV, or whether it can cut down on the length of hospital stays for those patients with the reactivated virus. ... to test the theory that by treating CMV we can improve the endpoint -- the length of stay in the hospital." If the planned clinical trial shows that ...

DNA study unlocks mystery to diverse traits in dogs

... be related to a Great Dane? Dogs vary in size, shape, color, coat length and behavior more than any other animal and until now, this variance has ... contribute to differences in body and skull shape, weight, fur color and length and possibly even behavior, trainability and longevity. "This exciting ...

EuroDYNA takes lid off the genome

... the DNA molecule, which in humans and most mammals is about two metres in length but only 2 nanometres in diameter, is coiled up like a spring in a ... molecular complex, capable of stretching to three times its normal rest length without breaking, according to van Noort. Even more remarkably and here ...

NJIT applauds students for studies on brain injury, glaucoma and more

... in human development. It has been postulated that axons increase in length during human development, implying that mechanical forces play a crucial ... featured a miniature device that can stretch damaged axons in vitro to a length that can be implanted into an injured site. Another upcoming graduate, ...

Global warming linked to caribou-calf mortality

... herbs. As the birth season approaches, they are cued by increasing day length to migrate into areas where this newly-emergent food is plentiful. But ... the plants -- which initiate growth in response to temperature, not day length -- are peaking dramatically earlier in response to rising temperatures. ...

New study finds uncontrollable stress worsens symptoms of endometriosis

... developed vesicles. the endo-control group developed a total vesicle length that averaged 6.570.96mm per animal. the endo-stress group developed a total vesicle length that averaged 11.265.27mm per animal. the endo-control rats had higher ...

Where college students live can impact their weight, eating and exercise habits

... developed vesicles. the endo-control group developed a total vesicle length that averaged 6.570.96mm per animal. the endo-stress group developed a total vesicle length that averaged 11.265.27mm per animal. the endo-control rats had higher ...

Stanford researchers make first direct observation of 3-D molecule folding in real time

... To make RNA, a protein called RNA polymerase moves along the length of a strand of DNA. It reads a pattern in the building blocks of DNA, ... their light into a single beam, the researchers need to attach some extra length to the RNA. To do this, they tack a long strand of DNA on one side. ...

Accelerometer backpacks aid study of gliding behavior in the 'flying' lemur

... gliding mammals, able to drop from the forest canopy, glide more than the length of two football fields, execute 90-degree turns and then alight gently on ... forces increase with distance only for short leaps, a few times their body length of 75 centimeters, or about 30 inches, probably because they land with two ...

Could vitamin D, a key milk nutrient, affect how you age?

... aging and chronic stress. Using a genetic marker called leukocyte telomere length (LTL), they found those with the highest vitamin D levels had longer LTL, ... of aging. While there are several lifestyle factors that affect telomere length (obesity, smoking and lack of physical activity), the researchers noted ...

Moving to the US increases cancer risk for Hispanics

... to Pinheiro and Ramirez. Additional studies are warranted to assess the variations in cancer risk according to socio-economic status and length of time spent in the United States within each Hispanic population group, in order to evaluate habits that may predispose them to certain cancers. ...
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(Date:4/17/2014)... ALBUQUERQUE, N.M. A credit-card-sized anthrax detection cartridge developed ... small business makes testing safer, easier, faster and cheaper. ... causes anthrax, is commonly found in soils all over ... illness in both humans and animals. The bacteria can ... to B. anthracis may occur through skin ...
(Date:4/17/2014)... cells in bone marrow need to produce hydrogen sulfide ... according to a new study from the Center for ... Dentistry of USC. , Professor Songtao Shi, principal investigator ... produced by the cells governs the flow of calcium ... signals that results in osteogenesis, or the creation of ...
(Date:4/17/2014)... that devastate honeybees in Europe, Asia and the United ... appear to be impacting native honeybee populations at this ... invasive pests include including Nosema microsporidia and ... to be resilient to these invasive pests, which suggests ... in Europe, Asia and the United States currently are ...
Breaking Biology News(10 mins):Pocket-sized anthrax detector aids global agriculture 2Pocket-sized anthrax detector aids global agriculture 3East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
(Date:4/17/2014)... 17, 2014) Two recent papers by a ... colleagues may help scientists develop treatments or vaccines ... Japanese encephalitis and other disease-causing flaviviruses. , Jeffrey ... molecular genetics at the School of Medicine and ... Medical Institute, and colleagues recently published articles in ...
(Date:4/17/2014)... Pediatrician-in-Chief Jon McCullers, MD, was recently invited to ... Nature Reviews Microbiology , one of the ... world-renowned infectious disease specialist, and chair of the ... Health Science Center, analyzed the epidemiology and microbiology ... pandemics, as well as more recent 2009 novel ...
(Date:4/17/2014)... Rochelle, NY, April 17, 2014U.S. military personnel who ... plus impact" concussive traumatic brain injury (TBI) were ... evacuated for other medical reasons. Differences in measures ... depression 6-12 months after injury are reported in ... a peer-reviewed journal from Mary Ann Liebert, Inc., ...
(Date:4/17/2014)... It,s estimated that as many as 10 million older ... of loneliness and isolation. , However, new research ... retired older Americans for six years found that ... of depression by more than 30 percent. , "That,s ... State University professor of telecommunication, information studies and media ...
(Date:4/17/2014)... 17, 2014-- Colic affects about one in five infants ... pediatric visits during the first several months after birth. ... was showing promise; however, the April 1, 2014 issue ... Valerie) reported on a study, "Probiotics and Infant Colic," ... reuteri for infant colic did not reduce ...
Breaking Medicine News(10 mins):Health News:CU researchers discover target for treating dengue fever 2Health News:Long-term effects of battle-related 'blast plus impact' concussive TBI in US military 2Health News:Internet use can help ward off depression among elderly 2Health News:New study says probiotic use for infant colic is not effective in reducing symptoms 2
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