Bluesky Facebook Reddit Email

Science News Archive February 2011


Page 16 of 25

Microarray analysis can identify unsuspected incest

Researchers using DNA microarrays to diagnose developmental disabilities may unexpectedly identify cases of incest. Children conceived through incest exhibit a lack of heterozygosity, resulting from the sharing of genetic material between family members.

Changing views about saturated fat and cardiovascular disease

A new perspective paper challenges long-held beliefs about saturated fatty acids and cardiovascular disease, highlighting the complexity of diet's effects on CVD risk. Experts conclude that blood lipid ratios and food matrices, including nutrients like protein and calcium, play a more significant role than just fatty acid content.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

A new way to attack pathogens

Researchers have discovered a new way to combat methicillin-resistant Staphylococcus aureus (MRSA) by targeting the bacteria's RNA degradation process. The approach, which uses an inhibitor called RNPA1000, shows promise against MRSA biofilms and other antibiotic-resistant strains.

MRI can help decide therapy in patients with unclear-onset stroke

A study using MRI techniques found that over 80 patients with unclear-onset strokes could safely receive clot-busting therapy, resulting in 45% having a good clinical outcome and 29% an excellent one. However, female patients and those with severe initial assessments fared poorly with treatment.

NASA awards aircraft catalog blanket purchase agreements

NASA has selected seven contractors to receive Aircraft Catalog Blanket Purchase Agreements, allowing access to various airborne platforms for science research and range support. The BPAs offer a range of instrumentation payloads and access to both manned and unmanned aerial platforms.

How much information is there in the world?

The study, led by Martin Hilbert, found that humankind is able to store at least 295 exabytes of information, equivalent to a galaxy of data for every person in the world. This represents just one percent of the information stored in all human DNA molecules.

Roses get celery gene to help fight disease

Researchers at North Carolina State University have developed roses that incorporate a gene from celery to fight botrytis, a major post-harvest disease. The genetically modified roses aim to extend vase life and reduce shipping times, making them more viable for the cut flower industry.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Chinks in the brain circuitry make some more vulnerable to anxiety

Two neural pathways have been identified in the brain that play a role in developing phobias and anxiety disorders. The study found that individuals with overactive amygdalas and those who fail to activate their ventral prefrontal cortex are more prone to fear responses.

New mode of dementia care improves health, lowers hospitalization rates

Researchers developed a new mode of dementia care that significantly reduces emergency department visits and hospitalizations, while encouraging the use of non-harmful medications. The model results in improved health outcomes, reduced healthcare costs, and less emotional burden on family caregivers.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

2 NASA satellites see a newborn tropical storm near Madagascar

NASA's Terra satellite captured an image of Tropical Storm Bingiza showing strong thunderstorms and a well-defined low-level circulation center. The storm is intensifying slowly and expected to meander over the next couple of days before strengthening towards central Madagascar.

New research helps explain how progesterone prevents preterm birth

A recent study led by Dr. Errol R. Norwitz found that three proteins XIAP, BID, and Bcl-2 play a crucial role in preventing preterm labor by hindering apoptosis in the fetal membranes. This breakthrough research sheds light on the mechanism behind progesterone's success in preventing preterm birth.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

New evolutionary research disproves living missing link theories

A team of researchers led by Dr. Hervé Philippe found that Xenoturbellida and Acoelomorpha marine worms evolved from more sophisticated ancestors through major simplifications, contradicting the idea of a linear hierarchy of evolution. The study demonstrates the importance of secondary simplification in evolution.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Heat therapy could be new treatment for parasitic skin disease

Researchers at Ohio State University successfully treated two patients with cutaneous leishmaniasis, a parasitic skin infection common in tropical regions, using heat therapy. The long-term effectiveness of this treatment, especially in people with compromised immune systems, makes it an appealing alternative to traditional drug therapy.

Many stroke patients not getting preventive therapy for blood clots

Patients with strokes and spinal cord injuries are prone to life-threatening blood clots. Despite the high risk, many do not receive preventive therapy. Studies show that starting heparin medication within 24-48 hours can be both safe and effective in preventing recurrent VTE.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Robot therapy can improve arm, shoulder mobility after stroke

Research shows that robotic therapy combined with standard rehabilitation can significantly improve upper extremity function in patients after stroke. The study involved 60 stroke survivors who received either robotic therapy or a standard self-training program for six weeks, resulting in improved scores on measures of voluntary arm mo...

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Young, uninsured or Medicare Part D survivors often can't afford medicines

Despite government prescription coverage, many young, uninsured, and Medicare Part D beneficiaries struggle to afford medications due to rising costs. Researchers found that nearly half of those enrolled in Medicare Part D reported difficulty affording their medications, with significantly higher rates among younger survivors.

Squid pheromone sparks extreme aggression on contact

A new study in Current Biology found that male squid become aggressively after contacting a chemical on female eggs, revealing the first detailed evidence of an aggression-inducing pheromone in any aquatic animal. This discovery challenges previous theories on aggression and highlights the complex communication system of squid.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Seismology highlights from BSSA February issue

Researchers detected a sequence of small earthquakes in Dallas-Fort Worth triggered by brine disposal, highlighting induced seismicity concerns. Seismologists also identified large hurricanes using microseisms recorded at distant seismic stations.

P Summit calls for a 'new alchemy' around phosphorus and food

Attendees of ASU Sustainable Phosphorus Summit emphasize economic opportunities and new industry solutions to 'wicked' problem. Key findings include education, efficient use of P on farms, protection of water quality, and developing affordable fertilizers for farmers.

Anti-bacterial collar to help mend broken bones

A new anti-microbial collar is being designed to prevent bacterial infections associated with broken bones, reducing infection rates by up to 85%. The device aims to kill bacteria before they can spread, and could reduce NHS costs by avoiding complications.

Welders can breathe easier with chromium-free alloy

A new nickel alloy consumable has been developed to lessen the risk of breathing toxic fumes on the job. The alloy is compatible with stainless steel and produces no fumes of hexavalent chromium, a toxic form of chromium linked to cancer.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Noninvasive test for trisomy 21 closer at hand

A new noninvasive test for trisomy 21 has been developed using DNA sequencing of maternal blood plasma, accurately detecting the extra chromosome in 100% sensitivity and 99.7% specificity. The test shows promise as a potential alternative to invasive prenatal testing.

Foot bone suggests Lucy's kin had arched foot, for walking

A new foot bone from Hadar, Ethiopia, reveals Australopithecus afarensis had stiff, arched feet similar to modern humans. This finding supports the hypothesis that A. afarensis was primarily an upright walker, with its well-formed arch allowing for efficient walking and running on two feet.

JPEG for the mind: How the brain compresses visual information

Neuroscientists at Johns Hopkins University discovered that cells in area V4 of the primate brain select out only the most vital information for understanding the visual world. The brain compresses visual information by responding mostly to flat edges and shallow curvatures, rather than rare high-curvature regions.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

LED products billed as eco-friendly contain toxic metals, study finds

Researchers at UC Irvine found that low-intensity red LEDs contained up to eight times the allowed amount of lead, while high-intensity bulbs had more contaminants. White bulbs had the least lead but high amounts of nickel, highlighting the need for safer alternatives and stricter testing regulations.

On their own 2 feet

A 3.2 million-year-old fossil foot bone found in Ethiopia shows that human ancestors walked bipedally with a modern human-like foot, resolving a long-standing debate among paleoanthropologists. The discovery provides strong evidence for the arches and supports a modern-human style of locomotion for Lucy's species.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

New research helps explain how progesterone prevents preterm birth

Research led by Dr. Errol Norwitz found that progesterone prevents preterm labor by hindering apoptosis in fetal membranes, resulting in stronger and thicker fetal membranes. This study contributes to the understanding of what triggers labor and the role of progesterone in preventing premature birth.

More advantages found for new drug: McMaster study

A recent McMaster University-led study published in the New England Journal of Medicine has found that apixaban significantly reduces stroke or embolism risk in high-risk patients with atrial fibrillation, preventing one stroke for every 20 patients treated. The drug also reduces major bleeding risk compared to aspirin.

Restructuring natural resource majors

A study by Michigan State University found that students enrolling in fishery and wildlife programs are leaving after completing coursework due to limited hands-on experiences and challenging academic requirements. The researchers identified seven categories for student departure, including engagement, employment, and academic rigor.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Invasive plants can create positive ecological change

A team of scientists found that invasive fruiting plants, such as honeysuckle, can form mutually beneficial relationships with native birds and other species. In the Happy Valley region of Pennsylvania, honeysuckle increased the abundance of fruit-eating birds and facilitated seed dispersal for nearby native plants.

Exercise helps overweight children think better, do better in math

Exercise has a positive impact on cognition and academic performance in overweight children. Intelligence scores increased by an average of 3.8 points in those exercising 40 minutes per day after school for three months. The study also found improved executive function and math skills, with no improvements in reading skills.

Young children choose to share prizes after working together

In a study published in Psychological Science, researchers found that three-year-old children shared equally when collaborating to earn a reward. The study suggests that young children's ability to cooperate and share is more developed than previously thought, and may be linked to the evolution of mutually beneficial arrangements.

Spring break

A study published in the Journal of Youth and Adolescence found that students who have agreements with friends about using alcohol during Spring Break are less likely to binge drink. Women were more likely than men to report having understandings about safer behavior, such as agreeing not to get drunk.

SMFM highlights significance of spina bifida research findings

The $22.5 million study found that prenatal surgery greatly reduced the need to divert fluid away from the brain, increasing chances of children walking without crutches. Infants and mothers who underwent the procedure had better outcomes than those with post-birth surgery.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Childhood physical abuse linked to peptic ulcers

Researchers at the University of Toronto found a strong association between childhood physical abuse and peptic ulcers in adulthood. The study, which analyzed data from over 13,000 Canadians, showed that victims of childhood abuse were 68% more likely to develop peptic ulcers.