Sediments in many Central Valley streams contain toxic levels of pyrethroid pesticides
...er levels of PBO need to be considered in order to estimate the true toxicity of pyrethroid pesticides. The latter study is being conducted by UC Berkeley post-doctoral researcher Erin Amweg. "I don't want to give the impression that pyrethroids are destroying the streams, since that has not yet been shown, b...ESA's minature Earth observer put to many uses
...of cotton might be used on an operational basis to estimate the crop's health, maturity and yield. Merton's team are documenting the spectral properties of cotton on a variety of scales, from looking at individual cotton leaves in the lab to making field acquisitions close-up, from using airborne hyperspectr...Kinase backgrounder: Iressa discovery part of major kinase project at Dana-Farber
...everaging existing grants to get started, but they estimate they'll need at least $6 million to see it through. Institute staff are seeking funding sources for this effort, deemed a strategic priority for Dana-Farber. "One way or another, we're going to accomplish this," states DFCI President Edward J. Benz J...K-State soil carbon sequestration research playing role in climate change efforts
...i-Food Canada about developing reliable methods to estimate soil carbon sequestration and greenhouse gases in U.S. and Canadian agroecosystems. Research at K-State and other universities has shown that successful implementation of soil carbon sequestration strategies can lower the accumulation of greenhouse ...Mantis shrimp may have swiftest kick in the animal kingdom
... video, however, they discovered that the previous estimate of the speed of another mantis shrimp species' strike - 10 meters per second - was much lower than the speeds observed in this particular species. Instead, the peak speeds of the striking appendage were 14 to 23 meters per second, with peak accelerat...Better techniques needed to predict earthquake hazards, UC study finds
...ults that are very close to the campus." "A single estimate of ground motion for a site is not appropriate," said Heuze. "Even if you have a known fault and restrict your calculations to a known magnitude, this fault could provide that magnitude in many different fashions. Thus the severity of the ground shoc...East Texas feral hog numbers skyrocketed in last decade
...ver likely to eradicate feral hogs. A conservative estimate puts their numbers statewide at 1.5 million. "We don't really know how many there are. In West Texas, aerial surveys and the like can be conducted to give a fair idea, but in East Texas they have too much escape cover," he said. Higginbotham survey...Three new South American fish identified
...ome 4,475 species have been named, but researchers estimate about 1,550 have yet to be found and described. "I'm very concerned about biodiversity," Lopez-Fernandez said. "It's easier to preserve a species if you know it's there. It's very hard to attach a value on something until you know what it is." One ...Water molecules clump more loosely than previously thought
...oser kinds. The authors point out that the earlier estimate of 3.5 was based on theoretical assumptions that became commonly accepted because, when applied in computer simulations, they gave results consistent with known properties of water, such as the unusually high amount of energy that is required to heat......oser kinds. The authors point out that the earlier estimate of 3.5 was based on theoretical assumptions that became commonly accepted because, when applied in computer simulations, they gave results consistent with known properties of water, such as the unusually high amount of energy that is required to heat...Scientists compare rat genome with human, mouse
...gave rise to the rat and to the mouse. Researchers estimate about 50 chromosomal rearrangements occurred in each of the rodent lines after divergence from their common ancestor. The number of chromosomal rearrangements, as well as other types of genome changes, was found to be much lower in the primate lineag...Heinz Maier-Leibnitz prizes 2004
... forming limit diagrams, which make it possible to estimate the forming properties of sheet metals. This work has been important in assessing the behaviour of metallic materials and holds great potential for the automotive industry in particular. Marion Merklein graduated in materials science at the Universit...Eastern lowland gorilla population plummets 70 percent since 1994
...ore than 70 percent in the past decade. Scientists estimate that fewer than 5,000 individuals remain, down sharply from 17,000 in 1994. But a new multi-million dollar investment to save the gorilla is expected to help prevent the species' slide into extinction. Conservation International (CI), as well as its...New study of land use effects on amphibian populations gets underway at UGA laboratory
...enclosures, radiotelemetry and other techniques to estimate the demographic parameters (e.g., survival, reproductive success) underlying population dynamics and to observe amphibians during their migrations in and out of the wetlands. The advantage of using these direct methods (as opposedto such indices as r...Mathematical rule said to be widely and wrongly used to forecast future beach erosion
...ternet computer search service to come up with the estimate that the Bruun rule is in use in 26 countries, Pilkey said. Their commentary noted that much of the developed world has experienced "a four-decade rush to the shore, with concomitant beachfront development and exponentially increasing total values fo...Plant, bird and butterfly species dwindling in the United Kingdom, researchers report
...remental decline in species richness. The authors estimate that Agrostis-Festuca grasslands receiving an average amount of nitrogen deposition in the United Kingdom or central Europe may have already lost more than 20 percent of their species richness. Even though the rate of nitrogen deposition is beginning...Deficits associated with prenatal alcohol exposure can be seen as early as infancy
...rowth and Development Study, a project designed to estimate the prevalence of Fetal Alcohol Syndrome. Researchers used structured interviews to gather demographic, pregnancy-related, and alcohol and other drug-use information from the mothers; their infants were given an extensive physical examination; and m...Household activities release a cloud of dust, increasing exposure to particulate pollution
...like dancing. They applied a mathematical model to estimate the strength of each source. Dusting, of course, kicked up a significant amount of particles, but it wasn't the biggest contributor. "The highest source was from two people just walking around and sitting on furniture," Ferro says. This released part...Cancer health risk significantly underestimated by EPA's ambient model estimates
... Scientists use pollutant exposure measurements to estimate public health risk. Such a comparison is important...hat occur at global background levels, the ambient estimate given by ASPEN was in agreement with the measured personal exposures. When the researchers combined ...Slow-moving ground water slows down water-quality improvements in Chesapeake Bay
...rstanding provided by the USGS will help us better estimate when we'll see the benefits from these efforts and how much more is needed to bring back the Bay." The age of ground water in shallow aquifers underlying most of the Chesapeake Bay watershed ranges from less than 1 year to more than 50 years. The maj...