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Science News for September 16, 2009


Apple iPhone 17 Pro

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

Researchers explore long-term adolescent vulnerability to drugs

A Georgia State University study found that adolescent rats are less vulnerable to drug withdrawal and relapse than adult rats, suggesting a possible protective effect of youth on substance abuse. Researchers hope to apply this knowledge to develop better treatments for human addiction.

SourceGeorgia State University·DateSep 16, 2009

Teenage birth rates higher in more religious states

Researchers found a strong association between teenage birth rates and state-level measures of religiosity in the US. Conservative religious beliefs are strongly predicted to influence teen birth rates, even after controlling for income differences.

SourceBMC (BioMed Central)·JournalReproductive Health·DateSep 16, 2009

Lower lexical recall in bilingual kids no cause for alarm

A University of Alberta study found that bilingual children's lexical recall is slightly lower than unilingual peers, but this is not a concern for French Immersion programs. Bilinguals showed improved recognition and translation skills, and demonstrated creative thinking in coming up with words to convey their meaning.

SourceUniversity of Alberta·DateSep 16, 2009

Researchers seek clues to high blood pressure's origins, impacts

A five-year study at Penn State will analyze hypertension in humans and laboratory conditions, shedding light on potential therapeutic strategies for people with essential hypertension. The study aims to understand how hypertension affects the body's cardiovascular system and its impact on individuals.

SourcePenn State·DateSep 16, 2009
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Study of isolated snakes could help shed light on venom composition

Scientists have discovered that the venom of isolated Florida cottonmouth snakes may differ from that of mainland snakes due to their diet of dead fish dropped by seabirds. A new technique for collecting venom, using a portable nerve stimulator, has also been developed as part of this study.

SourceUniversity of Florida·JournalToxicon·DateSep 16, 2009

Graphene and gallium arsenide: 2 perfect partners find each other

By using a special design and the principle of anti-reflective layers, researchers have made graphene visible on gallium arsenide. This achievement enables the measurement of electrical properties of the new material combination, paving the way for further research and development in electronics.

SourcePhysikalisch-Technische Bundesanstalt (PTB)·JournalApplied Physics Letters·DateSep 16, 2009

How to reach proficiency in laparoscopic splenectomy?

The study investigates proficiency level in laparoscopic splenectomy using the learning curve method, finding a horizontal lazy S-shape with two distinct slopes. Surgeons can be accepted as proficient after performing at least 25 cases, contrary to the widely accepted 'L' shape.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 16, 2009
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.

Scientists cure color blindness in monkeys

Researchers from the University of Florida and the University of Washington successfully used gene therapy to restore color vision in two squirrel monkeys. The study demonstrates the potential for this treatment to target adult vision disorders involving cone cells, a crucial step towards developing therapies for human cone diseases.

SourceUniversity of Florida·JournalNature·DateSep 16, 2009

K-State Pollution Prevention Institute's intern program named best

The K-State institute's intern program has received the National Pollution Prevention Roundtable's Most Valuable Pollution Prevention Program award for its innovation and measurable results in reducing waste and emissions. The program, launched in 2006, has led to significant environmental improvements and cost savings for participatin...

SourceKansas State University·DateSep 16, 2009

HBV genotype B/B3 and C/C1 are the major genotypes in Indonesia?

A study published in World Journal of Gastroenterology found that HBV genotypes B and C were the major genotypes in Indonesia, with genotype B being predominant. The study also identified associations between certain mutations and liver disease progression.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 16, 2009
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.

Melting of the Greenland ice sheet mapped

Researchers have analyzed ice cores from Greenland and small ice caps to show the evolution of the ice sheet over 11,700 years. The findings reveal that changes in elevation cause different temperatures, allowing scientists to use small ice caps as a standard reference for climate history.

SourceUniversity of Copenhagen·JournalNature·DateSep 16, 2009

Evaluation of standard liver volume formula for Chinese adults

A study published in the World Journal of Gastroenterology evaluated 76 cases of living donor liver transplantation and found that the Chengdu formula is reliable. The other formulas, such as Fan and Heinemann, underestimated liver volume, while Urata and Lee overestimated it.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 16, 2009

Grant to help K-State with Latino student retention and success

K-State will expand its program for recruitment and retention of Latino students, including a new learning community and academic tracking system. The goal is to improve retention rates, reduce academic warning cases, and increase graduation rates among Hispanic students.

SourceKansas State University·DateSep 16, 2009
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Yes-associated protein: Early diagnosis of gastric carcinoma

Researchers found a positive correlation between Yes-associated protein (YAP) and survivin expression in gastric carcinoma, suggesting YAP's role in inducing cell proliferation and inhibiting apoptosis. The study suggests potential for YAP as an early diagnostic marker for gastric carcinoma.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 16, 2009

With a flash of light, a neuron's function is revealed

Researchers used light-activated proteins to pinpoint the neural cell responsible for a specific behavior in zebrafish, a breakthrough that could lead to new insights into biological systems and synthetic biology applications. This technique may also aid in optimizing biofuels and disease-fighting therapies.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature·DateSep 16, 2009

Landmark study sheds new light on human chromosomal birth defects

A groundbreaking study published in the Journal of Cell Biology reveals that the protein Pds5 plays a vital regulatory role during meiosis, failing to segregate and pair up properly when it is absent. This finding has significant implications for understanding human chromosomal birth defects, including Down syndrome.

SourceFlorida State University·JournalJournal of Cell Biology·DateSep 16, 2009
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.

Meta Quest 3 512GB

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

Rich people don't need friends

A study published in Psychological Science found that reminders of money can reduce feelings of pain and social exclusion. The researchers suggest that acquired symbolic value of money can influence responses to both emotional and physical pain.

SourceFaculty of 1000·JournalPsychological Science·DateSep 16, 2009

New method can predict 80 percent of cases of postnatal depression

Researchers developed a model to diagnose postnatal depression with an 80% predictive power, identifying risk factors such as social support and family history. The study also uncovered two protection factors: age and work during pregnancy, which reduce the risk of depression.

SourceSpanish Foundation for Science and Technology·JournalMethods of Information in Medicine·DateSep 16, 2009
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.

Zero tolerance, zero effect

Researchers found that zero tolerance laws had no effect on the number of nighttime accidents involving drivers under 21. Instead, other factors such as heavy drinking and mild drinking were consistent across all accident types.

SourceSam Houston State University·JournalEconomic Inquiry·DateSep 16, 2009

Intermittent preventive malaria treatment for African infants is safe and effective, but more long-acting drugs desperately needed

A recent study found that intermittent preventive malaria treatment in African infants is both safe and effective, with sulfadoxine-pyrimethamine providing protection for up to 6 weeks. However, the use of this drug is limited by potential resistance and its risks. New long-acting antimalarial drugs are urgently needed for this strategy.

SourceThe Lancet_DELETED·JournalThe Lancet·DateSep 16, 2009
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.

Canadian scientists uncover a new mechanism regulating fetal growth and neonatal survival

Researchers have identified a critical role for protein kinase Erk3 in fetal growth potential and lung maturation, revealing the loss of this function leads to fetal growth restriction and early neonatal lethality. This finding provides new insights into intrauterine growth restriction and its associated risks.

SourceUniversity of Montreal·JournalProceedings of the National Academy of Sciences·DateSep 16, 2009

Helping the obese fight loss of muscle function

Researchers are investigating the impact of low-level inflammation on skeletal muscle in obese individuals. They aim to determine how obesity affects muscle synthesis and breakdown, and whether an insulin-sensitising drug can reverse these effects.

SourceUniversity of Nottingham·DateSep 16, 2009

UCSF scientists illuminate how microRNAs drive tumor progression

Researchers at UCSF have identified microRNA collections that affect distinct processes critical for cancer progression. By analyzing these 'signatures', the team found a link between deregulated microRNAs and processes like hyperproliferation, angiogenesis, and metastasis.

SourceUniversity of California - San Francisco·JournalGenes & Development·DateSep 16, 2009

GPs' gut feelings defined

Researchers define 'gut feelings' experienced by GPs as two types: sense of alarm and reassurance. The former involves feeling uneasy about possible adverse outcomes, while the latter means feeling secure despite uncertainty. This definition aims to facilitate future research on the effectiveness of 'gut-compass'.

SourceBMC (BioMed Central)·JournalBMC Family Practice·DateSep 16, 2009
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.

UNC study: Color-coded chart improves parents' understanding of body mass index

A new study published in Academic Pediatrics found that parents are more likely to understand a body mass index (BMI) chart if it's color-coded, like a traffic light. The color-coded charts were most helpful to parents with the lowest math abilities, increasing correct answers from 51% to 81%.

SourceUniversity of North Carolina Health Care·JournalAcademic Pediatrics·DateSep 16, 2009

The pen may be mightier than the keyboard

A new study by University of Washington professor Virginia Berninger found that children can write more and faster with a pen than a keyboard for essay composition. Children consistently produced longer essays and composed them at a faster pace when using a pen.

SourceUniversity of Washington·DateSep 16, 2009

New AFOSR magnetron may help defeat enemy electronics

Researchers at the University of Michigan have invented a new type of magnetron that holds potential for more compact microwave sources with faster start-up times. The invention could lead to improved radar resolution and airborne applications, benefiting the Air Force's radar capabilities.

SourceAir Force Office of Scientific Research·DateSep 16, 2009
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.

Genetic hint for ridding the body of hepatitis C

Johns Hopkins researchers identified a strong genetic alteration associated with the ability to clear hepatitis C without treatment. The study found that people carrying a specific variation of the IL28B gene were more likely to successfully eliminate the virus from their bodies.

SourceJohns Hopkins Medicine·JournalNature·DateSep 16, 2009

What are the risk factors for rebleeding after negative angiography?

A study published in the World Journal of Gastroenterology found that underlying malignancy, liver cirrhosis, and hematemesis are key predictors of rebleeding after negative angiographic findings. The research team analyzed 128 patients with acute non-variceal gastrointestinal bleeding who had negative initial angiography results.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 16, 2009
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.

Endothelin-1 inhibitors in chronic pancreatitis

Research on endothelin-1 (ET-1) reveals its role in promoting fibrosis in pancreatic stellate cells. ET-1 stimulates cell activation, leading to inflammation and fibrosis. Inhibition of ET-1 may offer a novel approach to treating chronic pancreatitis and pancreatic cancer.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 16, 2009

Weill Cornell researchers discover new anti-tuberculosis compounds

Researchers at Weill Cornell Medical College have identified new anti-tuberculosis compounds that inhibit the disease-causing bacteria's mechanism for surviving dormant in infected cells. The findings could lead to drugs that destroy TB in its dormant stage, potentially revolutionizing treatment.

SourceNewYork-Presbyterian·JournalNature·DateSep 16, 2009

Depression care improved

Researchers found a simple intervention involving monthly follow-up phone calls improved depression care in primary practice. The trial evaluated 626 patients with depression, highlighting the potential of practice-based health care assistants to recognize and react to deteriorating symptoms.

SourceGoethe University Frankfurt·JournalAnnals of Internal Medicine·DateSep 16, 2009
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.

Pesky fruit flies learn from experienced females: Study

Researchers found that inexperienced female fruit flies can learn to prefer certain locations for laying eggs after observing mated females, indicating social learning abilities. This study suggests that even solitary insects may exhibit social learning as a survival mechanism.

SourceMcMaster University·DateSep 16, 2009

Spelling B-Y-U with DNA

Researchers have created a new technology using DNA origami that can form tiny letters with multiple branching points, addressing the need for narrow features in nanoelectronics. The breakthrough could lead to the development of nanoscale devices with unprecedented capabilities.

SourceAmerican Chemical Society·JournalNano Letters·DateSep 16, 2009

Swift makes best-ever ultraviolet portrait of Andromeda Galaxy

The Swift satellite has acquired the highest-resolution view of the Andromeda Galaxy in ultraviolet light, capturing over 20,000 ultraviolet sources. The galaxy's star-formation processes can now be studied in greater detail than previously possible with the help of three ultraviolet filters.

SourceNASA/Goddard Space Flight Center·DateSep 16, 2009
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.

Blocking protein may prevent blinding disease

Researchers at Medical College of Georgia say blocking a protein that battles infection may help prevent a common cause of vision loss in chronic diseases like diabetes. The protein interleukin-6 prompts inflammation, which can lead to complications such as diabetic retinopathy.

SourceMedical College of Georgia at Augusta University·DateSep 16, 2009

How HIV cripples immune cells

The HIV Nef protein inhibits cell mobility in immune cells, disrupting their ability to establish contact and combat the virus. This mechanism may lead to the malfunction of B-lymphocytes in AIDS patients.

SourceHeidelberg University Hospital·JournalCell Host & Microbe·DateSep 16, 2009

How to spell B-Y-U with DNA

Researchers from Brigham Young University have successfully created a customized DNA origami technique to write the letters B-Y-U on an extremely small scale. This breakthrough enables the design of nanoscale shapes for electrical circuitry and the creation of inexpensive computer chips.

SourceBrigham Young University·JournalNano Letters·DateSep 16, 2009
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.