Researchers have developed a micron-resolution particle image velocimetry system to measure velocity fields in bioanalysis systems where low-light level imaging is critical. The technique has been refined to provide velocity-field measurements with spatial resolutions approaching 1 micron.
Miniature shock waves can be used to probe complex systems and investigate phenomena at the molecular level. The technique opens up new possibilities for research in chemistry, biology, and medicine.
Researchers found that Loblolly pine trees in North Carolina experienced a 12% growth rate increase when exposed to future carbon dioxide levels. However, the growth rate is likely unsustainable as trees adapt to higher CO2 concentrations and soil nutrient limitations.
The robotic telescope successfully mapped the southern sky in hydrogen-alpha light for a two-year project to identify low-surface-brightness phenomena within our own galaxy. The data will help decontaminate measurements of the cosmic microwave background from galactic emissions.
A cross-sectional analysis of 215 women aged 18-31 found correlations between weight, height, lean mass, and dietary factors like calcium, protein, and phosphorus with various bone mineral measures. Postmenarcheal age was positively correlated with total-body BMD and BMC, while radius BMD was linked to protein and phosphorus intakes.
A new court-based program called Children First helps divorcing parents be more sensitive towards their children, reducing conflict intensity. The program's effectiveness was found to have positive effects on parents reporting high levels of conflict, leading to improved interactions with their kids.
Researchers find that a single chemical cue can either attract or repel neurons depending on the growth cone's internal status, providing potential clues for regenerating nerves and understanding disorders of neuronal migration
Researchers at Johns Hopkins Oncology Center identify connection between APC and c-MYC genes, which conspire to initiate almost all colon cancers. The study suggests potential new drug strategies to prevent colon cancer by blocking the signal that activates c-MYC.
Researchers have identified a cluster of three genes, kaiABC, that are integral components of the feedback loop driving circadian rhythms in cyanobacteria. The levels of KaiC gene expression increase during daytime and decrease at night, but an overabundance can shift the timing of the clock.
A new hypothesis proposes that a 71,000-year-old volcanic winter and subsequent 1,000-year ice age led to widespread famine and death, causing a significant bottleneck in human populations. This event is believed to have resulted in rapid genetic divergence among modern humans.
Healthy men who used olive oil instead of saturated fats for eight weeks experienced increased triglyceride but lower LDL-cholesterol and clotting factor VII. The long-term significance of this effect on coronary mortality remains unclear.
Researchers have found the first connection between the loss of a tumor suppressor gene and activation of an oncogene, providing new insights into the genesis of most cases of colon cancer. The study reveals that mutated APC genes switch on MYC, a gene associated with various cancers in animals and humans.
Genetics professor John Avise's book, The Genetic Gods, examines how genetic discoveries are shaping our understanding of human life, including spirituality. The book argues that genes have a significant influence on human affairs, challenging traditional views of the supernatural.
Researchers at the University of Illinois found that zinc deficiency can exacerbate anorexia by increasing neuropeptide Y production and decreasing leptin levels. Zinc supplements have shown to increase recovery rates, supporting its potential as a treatment for anorexia.
Researchers found that calcium influx into mitochondria triggers neuron death, while changes in cytoplasmic calcium have a more subtle effect on cell health. The study suggests designing drugs to target mitochondria could prevent or intervene in glutamate-induced neuronal damage.
A long-term study of 400 children found that early social struggles can lead to declining school success. Engaging with others is crucial for learning, and parents can play a role in helping their kids develop these skills.