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Science News Archive June 2013


Page 15 of 30

Excessive salt consumption appears to be bad for your bones

A new study presented at The Endocrine Society's Annual Meeting found that excessive salt consumption is associated with a higher risk of nonvertebral fractures in postmenopausal women. Women who consumed the highest amount of sodium had more than four times the risk of fracture, even after adjusting for other factors.

Bushfires in north of Western Australia

Northern Australia is prone to bushfires during winter and spring due to dry conditions and strong winds. NASA's satellite images reveal active burning areas, highlighting the region's susceptibility to wildfires.

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.

'Gene signature' test diagnoses benign thyroid growths

A new genetic test can accurately identify benign thyroid nodules in nearly all cases, potentially saving thousands of surgeries and eliminating the need for permanent hormone supplementation. This breakthrough test could have a major impact on healthcare costs and complications related to unnecessary medical procedures.

Healthy, full-term babies use a different stress hormone than their mother

A study published in PLOS ONE found that healthy, full-term babies secrete higher levels of corticosterone during labor and delivery compared to their mothers. Corticosterone concentrations increased with fetal distress and were linked to the method of delivery, with vaginally delivered infants producing more cortisol.

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.

Teaching complete evolutionary stories increases learning

Researchers at Michigan State University developed comprehensive evolutionary case studies to improve student understanding of evolution. Students who grasped integrated scenarios performed better on tests about evolution in general, suggesting that this approach enhances overall knowledge.

Steroid hormone may be indicator of infant distress

A new study has identified corticosterone as a potential biomarker of fetal stress during labor and delivery. Corticosterone concentrations increased by 148% compared to cortisol, suggesting that it may serve as an indicator of infant distress.

A turbocharger for nerve cells

Researchers at Max Planck Institute in Göttingen have discovered a molecular mechanism that turns neurons into true masters of adaptation. This process, known as short-term plasticity, is crucial for brain functions such as sound localization and mental maths.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Genome decoding of the medieval leprosy pathogen

Researchers reconstructed medieval leprosy bacteria genomes from 1,000-year-old skeletons and biopsies, revealing minor genetic changes over the last 1000 years. The study suggests improved social conditions and other factors influenced the end of the leprosy epidemic.

Study of oceans' past raises worries about their future

A global study of ocean nitrogen cycle changes at the end of the last ice age confirms the oceans' ability to balance on a global scale. However, the data suggests it is a slow process that may take centuries or millennia, highlighting concerns about current rapid changes.

Predicting collective online behavior

A team of Chinese scientists found that small websites with high user interaction have a significant impact on traffic generation and influence. The study analyzed clickstream networks of the 1,000 most popular websites and revealed that smaller sites have a greater chance of acquiring popularity than larger ones.

NASA-led study explains decades of black hole observations

A new NASA-led study confirms the production of high-energy X-rays from gas spiraling into a black hole. The research models the complex motions and turbulent magnetic fields in the accretion disk, reproducing important features long observed in active black holes.

Apple iPhone 17 Pro

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

Novel biomarkers improve diagnosis in rheumatoid arthritis

New antibody biomarkers could significantly improve diagnosis in rheumatoid arthritis by detecting the disease in patients who test negative for existing diagnostic antibodies. The study found that these biomarkers were present in both early and seronegative disease, indicating their potential to close the diagnostic gap in RA.

Automated 'coach' could help with social interactions

Researchers developed MACH software to help individuals improve their interpersonal skills through simulated conversations. The system uses facial and speech analysis to provide objective feedback, leading to statistically significant improvements in performance and perceived competence.

Older patients will make lifestyle changes to avoid fractures, study finds

A new study found that older patients who know they are at risk of fractures will make positive lifestyle changes, such as exercising and wearing proper shoes, to avoid them. Many participants were confused about the significance of bone density but engaged in daily behavioural strategies to manage their fracture risk.

Penn Researchers design variant of main painkiller receptor

Researchers at the University of Pennsylvania designed a variant of the mu opioid receptor, which can be grown in large quantities in bacteria and is water-soluble, enabling experiments that were previously challenging or impossible. The new design allows for further iterations to be easily made alongside experimental conditions.

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.

Researchers solve mystery of X-ray light from black holes

Astrophysicists used supercomputer simulations and traditional calculations to demonstrate that gas spiraling toward a black hole inevitably results in X-ray emissions. The study reveals high-energy light emission is not only possible but also an inevitable outcome of gas being drawn into a black hole.

From Botswanan big cats to Surrey house cats

A team of scientists, led by Professor Alan Wilson, tracked domestic cats in Surrey using GPS collars and cat-cams, revealing the extent of their daily roams. The study, funded by EPSRC, BBSRC, and DARPA, aimed to showcase scientific research methods to the public and demonstrate the utility of tracking technology.

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.

Study: Blacks, Hispanics say Zimmerman arrested earlier if victim White

A study by University of Central Florida associate professor Kareem Jordan found that Blacks are more likely than whites to believe race played a role in the shooting of Trayvon Martin. Hispanics are less likely to follow the case closely, while more educated respondents perceived race as a factor.

Developmental protein plays role in spread of cancer

Researchers found that a developmental protein called ROR1 promotes cancer metastasis by regulating epithelial-mesenchymal transition. Silencing ROR1 reverses this process and inhibits tumor growth in animal models.

Intense: Navy, civilian planners get big assist in storm predictions

The Coupled Ocean/Atmosphere Mesoscale Prediction System-Tropical Cyclone (COAMPS-TC) offers detailed intensity forecasts of tropical storms, improving accuracy for Navy and civilian officials. The new model will help predict a storm's strength from one to five days out, supporting fleet operations and disaster relief efforts.

Researchers explode the myth about running injuries

A new study from Aarhus University suggests that using neutral running shoes is not associated with an increased risk of injury for healthy novice runners who overpronate or underpronate. The researchers found that the risk of injury was similar among runners with different pronation types, regardless of shoe type.

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.

Nurse-led programs help patients self-manage RA

A nurse-led program improved patient self-assessment and led to changes in drug therapy among 89% of participants. The program also showed significant actions taken to reduce comorbidities, particularly cardiovascular disease, at a rate of 17.2%.

Stress test and brain scans pinpoint 2 distinct forms of Gulf War illness

Researchers at Georgetown University Medical Center discovered two forms of Gulf War illness based on brain region atrophy and compensatory brain use. The study found that pain levels increased in one group with loss of brain matter in adjacent regions, while another group showed substantial increases in heart rate and brain stem atrophy.

Why are there so many youth baseball-throwing injuries?

A national study led by Dr. Joseph Guettler found that youth baseball pitchers experience serious injuries 16 times more often than 30 years ago. Parents' behavior is to blame, with most leagues and coaches adhering to guidelines, yet pitchers still engaging in excessive throwing behaviors.

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.

Incontinence takes mental toll on younger women

A study by the University of Adelaide found that middle-aged women with urinary incontinence are more likely to experience depression and lower quality of life. The condition can affect family, sexual relationships, and physical activities, making it essential for younger women to seek medical advice.

Sugar overload can damage heart according to UTHealth research

A study by UTHealth researchers found that consuming high amounts of glucose can cause stress on the heart, leading to poor pump function and increased risk of heart failure. The study discovered a single molecule, G6P, which can accumulate from excessive sugar intake and induce damage to the heart muscle.

Medications to prevent clots not reaching some patients

Research at Johns Hopkins Hospital found that nearly 1 in 10 doses of prescribed blood thinners were not administered to patients. Despite the effectiveness of preventive blood thinners, many patients are missing out on this crucial treatment due to misconceptions and lack of education.

2013 ESH/ESC Guidelines for the management of arterial hypertension

The 2013 guidelines recommend a single systolic blood pressure target of 140 mmHg, with an increased role for home blood pressure monitoring. They also stress the importance of assessing totality of risk factors and consider individualized treatment approaches. Lifestyle changes, such as reducing salt and alcohol intake, are crucial fo...

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Berkeley Lab team uncovers secrets of biological soil crusts

A research team from Berkeley Lab has reported a unique molecular-level analysis of a BSC cyanobacterium responding to wetting and drying of its environment. They found that within three minutes after wetting began, metabolic processes in dormant microbial cells came alive.

Using math to kill cancer cells

Researchers used advanced mathematical modelling to devise strategies for making cancer cells exquisitely sensitive to virus infection, killing them without affecting normal cells. The models were remarkably accurate, predicting experimental outcomes in a mouse model of the disease and creating a useful framework for further research.

Researchers unearth bioenergy potential in leaf-cutter ant communities

A study published in Applied and Environmental Microbiology identifies new fungal enzymes that can break down cellulose, a key component of plant biomass. The researchers found that the fungi and bacteria in leaf-cutter ant gardens work together to convert plant biomass into energy-rich compounds.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

OU researchers collaborate on $20 million NSF EPSCoR grant

OU researchers will collaborate on a $20 million NSF EPSCoR grant to advance understanding of socio-ecological systems in Oklahoma. The project aims to develop a statewide socio-ecological observatory network, a forecasting system, and a decision-support system to address climate change and variability.

Study points to role of nervous system in arthritis

A new study by McGill University researchers suggests that the nervous system and nerve-growth factor (NGF) play a major role in arthritis. The findings support the idea that reducing elevated NGF levels may be an important strategy for developing treatment of arthritis pain.

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.

A peptide to protect brain function

Researchers at Tel Aviv University developed a peptide called NAP that protects and restores microtubule function in brain cells. In animal models with microtubule damage, NAP maintained or revived protein transport, ameliorating neurodegeneration symptoms.

Putting flesh on the bones of ancient fish

Scientists have reconstructed the soft tissue of a 380 million-year-old armored fish using synchrotron X-rays. The study reveals well-developed neck musculature and powerful abdominal muscles in early vertebrates, challenging previous assumptions about fossil interpretation.

'Tailing' spiny lobster larvae to protect them

Researchers develop Connectivity Modeling System to simulate larval dispersal and settlement patterns in the Caribbean. The study suggests that powerful currents can 'push out' larvae, but also highlights the importance of protecting source regions for sustainable management of the spiny lobster fishery.

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.

First major study of suicide motivations to advance prevention

A University of British Columbia study sheds light on why people attempt suicide, providing a new tool to advance suicide prevention and improve treatments. The Inventory of Motivations for Suicide Attempts (IMSA) is the most accurate and first scientifically tested measure for evaluating a person's motivations for suicide.

Unraveling the genetic mystery of medieval leprosy

Researchers reconstructed medieval leprosy genomes from centuries-old human remains, finding no change in the pathogen's genome despite a significant drop in cases. The study suggests humans may have developed resistance to the disease, which spread through natural selection and social isolation.

Unzipped nanotubes unlock potential for batteries

Rice University researchers have developed a new method to boost the efficiency of lithium-ion batteries using graphene nanoribbons and tin oxide. The new anodes showed initial capacities of more than 1,520 mAh/g, settling into 825 mAh/g after repeated charge-discharge cycles.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Stacking up a clearer picture of the universe

Astronomers use a new stacking technique to detect faint signals from distant galaxies, revealing crucial information about the amount of hydrogen they contain. This technique allows for the detection of ancient galaxies and provides insights into the evolution of the Universe.