What makes someone your sister or brother? No easy question in 2005
Researchers delving into today's complicated range of family set-ups must recognise that 'brother and sister' relationships are now about far more than blood ties and living in the same home, warns a new study sponsored by the ESRC. As 21st Century children and young people create their own, co...Scripps scientists find potential for catastrophic shifts in Pacific ecosystems
...Rather, these physical characteristics evolve in a complicated but apparently linear manner, involving the sum of many variables. This finding means that suspected regime-like fluctuations in the North Pacific physical system are for all practical purposes wiggles that are best modeled by traditional statistica...Scientists journey to southern Africa to unravel the secret world of elephant communication
...arch for a mate in this vast wilderness is further complicated by the elephant's reproductive biology. Females breed when they are in estrus--a brief period of ovulation that only occurs every two years and lasts just a few days. "Females in estrus make these very low, long calls that bulls home in on because it...New data demonstrate that Benicar and Benicar HCT significantly reduces systolic hypertension
...t with Stage 2** hypertension, as well as the less complicated Stage 1** patient, helping both achieve nationally recognized blood pressure goals. The first presentation, titled BENICAR Efficacy in Systolic Hypertension Trial (BEST), demonstrated that a BENICAR based treatment algorithm significantly reduced me...Study: Plants use dual defense system to fight pathogens
...e system to combat pathogens," he said. "They have complicated surveillance systems that detect various infection-causing molecules and trigger defensive responses." A next step in this line of work is to look at other pathogen effector proteins and analyze their role in causing infections. Mackey conducted th...Single gene is genetic switch for fly sexual behavior
A male fly's sexual courtship of a female fly is a complicated business of tapping, singing, wing vibration, and licking, but a single gene is all that is needed to produce this complex behavior, according to new research published in this week's issue of the journal Cell. The gene encodes the Fruitless protein....New law for resolution allows unprecedented sharpness in fluorescence microscopy
...gher resolution, the textbook knowledge was that a complicated and costly electron or scanning tunneling microscope would be required. However, over the past few years, researchers from the Max Planck Institute for Biophysical Chemistry in Göttingen, Germany, have developed with Stimulated Emission Depletio...Developing nervous system sculpted by opposing chemical messengers
... Studies, we are closer to understanding how these complicated network connections are wired up during embryonic development. Salk researchers have discovered that the same chemicals (called neurotransmitters) that are responsible for nerve signals are also involved in the wiring of synapses, the network's cruci...Genes exert powerful effect on sexual behavior
...connections that ultimately manifest themselves as complicated behavior, in this case relating to male sexuality.""In normal female fruit flies, that process doesn't take place," Taylor said. "But if you activate the fruitless gene in females, they behave as though they were males, showing that the same type of ...Why being a teenage mum could be good for you!
...ing if you like." Dr Moore believes that there are complicated evolutionary arguments behind why perfectly healthy eggs should begin to die. "We suggest that reduced fertility brought about by delayed reproduction occurs because evolution has not been able to adapt to what is an artificial situation; the cockroa...NIH awards $10.4 million to Scripps Research Institute and Scripps Florida
... a cellular process or complex pathway such as the complicated process of synthesis and secretion of insulin in the body. A proof-of-concept molecule in this sense would be one that induces insulin production, and such a molecule would be helpful in establishing which particular human proteins are involved in th...Genomic sequences processed in minutes, rather than weeks
...n a personal computer. In order to get answers to complicated biological questions more quickly, PNNL researchers "parallelized" the software using Global Arrays, a powerful programming toolkit, by creating algorithms to divvy up the work. PNNL researchers say ScalaBLAST may be used to process complex gen...Scripps scientists identify target of an immune suppression molecule called CD22itself
...this antigen by the B cells' receptors initiates a complicated cascade of "signaling" events that leads to the B cells' activation. An early part of this signaling involves the action of enzymes known as kinases, which attach chemical groups known as phosphates onto the B-cell receptor and its associated protein...Electronic connectivity isn't all that great, warns computer guru at NJIT talk
...ople function when newer applications such as more complicated cell phones or wearable computers, render distances even less important. "Essentially, how far is one point from another, when the destinations--or people-- are moving?" Kolb asked. His answer: Discontinuous connectivity. "Such connectivity allow...Groundbreaking study shows adult stem cells have same ability to self-renew as embryonic
...Medicine. The use of embryonic stem cells could be complicated by issues of rejection, with the recipient's immune system rejecting the foreign embryonic stem cells. With post-natal stem cells taken from the recipient and then reintroduced in an autologous manner, rejection would not be an issue. Dr. Huard is on...Identifying blood stem cells is a SLAM dunk
...d Morrison. "So, in the past we needed to use very complicated combinations of markers to rigorously purify the stem cells that is too complicated to use in staining tissue sections." Using antibody stains that revealed SLAM markers, the researche...Muscle repair: Making a good system better, faster; implications for aging, disease
...inflammatory, growth factor and other systems in a complicated manner, indicating that the plasminogen system likely has multiple functions. For instance, Koh noted that "the inflammatory process can be a double-edged sword for muscle repair. Inflammatory cells can exacerbate an injury, but they also can produc......nd FRET Activation of a T cell is made even more complicated by the fact that there are a number of safety mechanisms that ensure T cells will only be activated when it's really necessary. If T cells didn't have these safety mechanisms, then they might become activated accidentally and wind up doing more damag......it receives from sensory neurons using a code more complicated than scientists previously thought, according to new research from the National Autonomous University of Mexico and Cold Spring Harbor Laboratory. By studying how monkeys perceive a vibrating object when it touches the skin, scientists found that cha...