labor

Novel technology detects human DNA mutations

...echnology eliminates the need for costly, time and labor intensive gene amplification or enzymatic interventions ?two widespread methods currently used to perform such analyses. "Nanosphere's new SNP analysis methodology for whole genomic human DNA is a powerful example of the versatility of our propriet...

Scientists rid stem cell culture of key animal cells

... says Xu. "It also significantly reduces the daily labor of preparing the feeder cell-conditioned medium." "It is important that the culture of human ES cells be simplified so that the average scientist can use them without extensive prior training," says James Thomson, a UW-Madison professor of anatomy a...

Scientists use manufacturing methods to reconstruct mastodon

...ototyping are no more expensive, require much less labor and are certainly more exact, more faithful to the original." In the first part of the process, Fisher and students in the Undergraduate Research Opportunity Program (UROP) created digital representations of each bone using a device called a 3-D dig...

Specialized immune-system B cells play double-barreled role

...ter immunologists have discovered. The division of labor between B-1a and B-1b cells they have uncovered offers basic insights that could contribute to more rational development of vaccines, they said. B cells are the arms factories of the immune system, producing antibodies that target invading microbes ...

A novel method to measure circadian cycles

...of lengthy observation is prohibitively costly and labor intensive. Circumventing these technical limitations, Ueli Schibler and colleagues report in the open-access journal PLoS Biology a new method to measure circadian cycles in mammalian cells cultured from tissues other than the suprachiasmatic nuc...

Organic farms produce same yields as conventional farms

... to supply nutrients and control pests and because labor costs average about 15 percent higher in organic farming systems, the higher prices that organic foods command in the marketplace still make the net economic return per acre either equal to or higher than that of conventionally produced crops. Organ...

Studies clarify risk factors for mother-to-child transmission of hepatitis C virus

...ntly associated with transmission were the time in labor (a risk factor in both studies) and use of internal fetal monitoring devices (a risk factor in the U.S. study only). Although breastfeeding is a known risk for HIV transmission, both studies found it was not associated with transmission of HCV. The...

U-M scientists discover identifying markers for primitive blood-forming stem cells

...c stem cell and makes the process simpler and less labor intensive." "Many of the current markers we use to purify HSCs are expressed as a gradient from high to low across the hematopoietic cell hierarchy," says Omer H. Yilmaz, co-first author and a student in the Medical School's M.D./Ph.D. program. "Wha...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

...pears that transmission of the virus occurs during labor -- when contractions occur -- rather than during p... who undergo caesarean section before they go into labor do not transmit the virus, whereas those who undergo emergency C-sections after they go into labor d...

Some good news for the world's poor

... improved varieties resulted in greater demand for labor and wages. For example, earlier research found tha...s well as the upward pressure on wage rates in the labor market. Explaining the large difference in impact between the 15,000 lifted out of poverty in India...

Scientists develop protein-sequence analysis tool

...erent class. But comparing sequences "manually" is labor intensive, error prone, and has become impractical for those who wish to take advantage of the increasing number of sequences in protein databases, Shanklin said. "Yet this growing data resource contains a wealth of information for structure-functio...

Taking a bite out of a fellow worker helps wasps recruit new foragers

... be an important way of regulating the division of labor among these insects. Now, in the current issue of the journal Animal Behaviour, he describes an experiment in which he artificially removed active foragers from four wasp colonies to see how new foragers are recruited. He found that biting was dire...

Researchers release new variety of asparagus

...ketable spears reduces the impact of high land and labor costs, thereby making the asparagus more profitabl...mpete with those produced in other countries where labor cost is low, such as Peru and Mexico," said Mikeal Roose , a professor of genetics in the Departmen...

ASU researchers find link between social behavior, maternal traits in bees

...mplex communal societies that include divisions of labor among worker bees. Workers are female bees whose j...o look into how social structures and divisions of labor have arisen in bees from their solitary ancestors. Amdam's research supports the idea that elements ...

New method for identifying microbes

...hile highly specific and informative, would be too labor intensive and costly. So scientists have been searching for ways to identify key segments of genetic code that are short enough to be sequenced rapidly and can readily distinguish among species. The Brookhaven team has developed just such a techniqu...

First link of oral bacteria and preterm birth found in human

...any more women with infections that bring on early labor or the need to induce labor to protect the baby from an infection during the pregnancy. Women can contract intrauterine infe...

Prenatal nicotine exposure reduces breathing response of newborns...

...any more women with infections that bring on early labor or the need to induce labor to protect the baby from an infection during the pregnancy. Women can contract intrauterine infe...

Predicting successful outcomes in living-donor liver transplants

...e blood sampling used by the second study is quite labor intensive when compared to the device used in the first study, which is more apt to make its way into clinical practice. He concludes: "Before clinical decisions are based upon any of these tests, however, confirmation of the findings in larger patie...

What's shaped like a pear and has 2 genomes? Check the pond

...ism's impressive versatility. Rather than dividing labor into several types of cells, as humans and other multicellular organisms do, T. thermophila divides its activities, either into different places inside a cell or by changing the cell over time. It is a master multi-tasker. "This organism is a tru...

Finding a better way to make biodiesel

... high-tech catalyst that takes some of the energy, labor and toxic chemicals out of biodiesel production. They've come up with a technology that works in the laboratory. And now they're working with the West Central Cooperative in Ralston to test their discoveries on a larger scale. They're also working to...

Study challenges myth that sex late in pregnancy hastens birth

...rse during the final weeks of pregnancy can hasten labor and delivery. In fact, just the opposite was true in 93 women studied at Ohio State University Medical Center. Women who were sexually active in the final three weeks of their pregnancies carried their babies an average of 39.9 weeks, compared to av...

Technology for monitoring fetal oxygen during labor offers no apparent benefit

... that knowing the oxygen status of the baby during labor would provide information on the health of the baby, especially when there were disturbances in the fetal heart rate during labor. "The results of this study show that while a new technology may appear to be very promising, it's not possible to kn...

Improving outcomes in premature births

...nitroglycerin to mothers who had entered premature labor led to significant improvement in their baby’s hea...ecology. In previous studies of drugs to suppress labor contractions to allow the fetus more time to develop in utero, some drugs were able to delay deliver...

Plastic that degrades in seawater could be boon for cruise industry and others

...nitroglycerin to mothers who had entered premature labor led to significant improvement in their baby’s hea...ecology. In previous studies of drugs to suppress labor contractions to allow the fetus more time to develop in utero, some drugs were able to delay deliver...

Bumblebee house warming -- it takes a village

...to that task. This kind of size-based division of labor might make the colony more efficient." The rese...y indicates that there is strong specialization in labor among individuals, and body size seems to play a role in what jobs they perform. In addition, their...