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Science News for April 15, 2010


Innovation in science

A study evaluating INT-747 added to ursodeoxycholic acid found significant improvements in liver enzyme levels in patients with primary biliary cirrhosis. The results suggest a potential new treatment option for this chronic disease, which damages bile ducts and leads to liver scarring.

SourceEuropean Association for the Study of the Liver·DateApr 15, 2010
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Knowing when poultry goes foul

Researchers at NIST have designed an instrument that can quickly and precisely detect trace amounts of chemical compounds indicating poultry spoilage. The technique relies on identifying low-volatility compounds present early in the decay process.

SourceNational Institute of Standards and Technology (NIST)·JournalFood Chemistry·DateApr 15, 2010

Fostering scientific links between the UK and Japan

UK scientists Dr Dov Stekel and Dr Jon Hobman will collaborate with Japanese researchers to understand how E. coli survives in the human gut and causes disease. The project aims to improve our understanding of this prevalent bacterium and its variants, which can be fatal.

SourceUniversity of Nottingham·DateApr 15, 2010

Many patients don't know they had minor stroke, need emergency care

A British study found that nearly two-thirds of patients were unaware they had a minor stroke and over one-third delayed seeking medical attention for more than 24 hours. The study suggests a lack of public awareness about recognizing the signs of a minor stroke, with people from all demographics showing similar lack of knowledge.

SourceAmerican Heart Association·DateApr 15, 2010

USC researchers discover new molecular subtype of brain cancer

Researchers at USC have identified a distinct molecular subtype of glioblastoma multiforme (GBM) associated with improved clinical outcomes, including median survival time of over three years. The discovery was made using epigenomics and has potential implications for targeted drug treatments.

SourceUniversity of Southern California·JournalCancer Cell·DateApr 15, 2010
Apple iPhone 17 Pro

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

Finishing the job of polio eradication worldwide is an ethical obligation: Experts

The eradication of smallpox achieved significant public good with lives saved and prevented. Similarly, completing polio eradication is justified by moral obligations to prevent harm and protect future generations. The authors argue that finishing the job is an ethical imperative due to the capacity and opportunity to do so.

SourceSandra Rotman Centre for Global Health·JournalThe Lancet·DateApr 15, 2010

Gay men and lesbians more likely to experience violent events and subsequent PTSD

A Harvard study found that gay men, lesbians, and bisexuals are more likely to experience violent events and subsequent PTSD, with double the risk as the general population. The research highlights five mechanisms contributing to this increased risk, including hate crimes, social isolation, and limited access to mental health care.

SourceHarvard T.H. Chan School of Public Health·JournalAmerican Journal of Public Health·DateApr 15, 2010
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.

For older adults, flu season tends to peak first in Nevada, last in Maine

An analysis of hospitalization records found that seasonal flu tends to peak earliest in western states like Nevada and later in New England states like Maine. The study identified patterns between peak timing and intensity of seasonal flu, enabling healthcare providers to prepare for outbreaks.

SourceTufts University, Health Sciences Campus·JournalPLOS ONE·DateApr 15, 2010

It's elemental: Potato after-cooking darkening may be affected by nutrients

Researchers have discovered that the concentration of phosphorus, calcium, copper, and magnesium in potato tubers can predict after-cooking darkening. The study found that ACD readings were higher in tubers from fertilized plots compared to nonfertilized ones, suggesting a potential method for predicting and minimizing the trait.

SourceAmerican Society for Horticultural Science·JournalHortScience·DateApr 15, 2010

Einstein receives $10 million NIH grant to expand stem cell research facilities

Einstein will increase research space and recruit new stem cell scientists with the new facility expansion, focusing on four broad themes: stem cell biology, genetics, cancer stem cells, and translational stem cell research. The renovation is expected to create 150 new jobs and drive scientific innovation for multiple diseases.

SourceAlbert Einstein College of Medicine·DateApr 15, 2010
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.

Peak P? Phosphorus, food supply spurs Southwest initiative

A growing body of evidence suggests that global phosphorus reserves are declining, threatening food security. The Arizona State University Sustainable P Initiative aims to develop solutions through technological innovation, conservation strategies, and recycling measures.

SourceArizona State University·DateApr 15, 2010

Solid-state illuminator reduces nitrates in leafy green vegetables

Researchers found that a solid-state illuminator decreases nitrate concentrations by 44-65% while increasing beneficial nutrients. The technology allows for short-term preharvest treatment, making it suitable for northern countries with poor lighting conditions.

SourceAmerican Society for Horticultural Science·JournalHortScience·DateApr 15, 2010

Health, life insurers hold $1.88 billion in fast-food stocks: AJPH article

Harvard researchers found that life and health insurance companies hold significant investments in the fast-food industry, totaling nearly $2 billion. This raises concerns about prioritizing profits over public health and the potential expansion of private insurers in the healthcare system.

SourcePhysicians for a National Health Program·JournalAmerican Journal of Public Health·DateApr 15, 2010

New CSIRO soybean a hit in Japan

The Bunya soybean variety is gaining popularity in Japan due to its enhanced suitability as an ingredient in traditional Japanese dishes. Its unique gelation properties make it ideal for producing a range of soy-based foods like tofu and custard.

SourceCSIRO Australia·DateApr 15, 2010

Safer swiping while voting and globetrotting

A Tel Aviv University security expert has identified serious security drawbacks in US passports, credit cards, and e-voting systems. The researcher, Prof. Avishai Wool, found that hackers can access the chip embedded in passports using simple devices, while smart card vulnerabilities allow for easy jamming of radio frequencies.

SourceAmerican Friends of Tel Aviv University·DateApr 15, 2010
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.

For post-boomers, public education worth more than Social Security and Medicare

A new study from UC Berkeley concludes that younger Americans are getting the better deal when factoring in public education as an intergenerational entitlement program. The researchers found that people born between 1972 and 2060 will make net gains of 4 to 6 percent over their lifetimes, while those now aged 63 to 80 have paid out mo...

SourceUniversity of California - Berkeley·JournalPopulation and Development Review·DateApr 15, 2010

Pitt Dental School researchers find susceptibility for caries, gum disease in genes

Pitt Dental School researchers discovered a link between genetic variations and increased rates of tooth decay and aggressive periodontitis. The study found that individuals with specific polymorphisms in the DEFB1 gene had higher DMFT and DMFS scores, indicating a higher risk of developing these conditions.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalPLOS ONE·DateApr 15, 2010

Perchance to dream, perchance to write for young children

A University of Illinois professor argues that teaching young children to write without borrowing from popular culture is problematic and contradictory. She advocates for allowing children to copy or borrow plotlines, narratives, and characters from media stories to prepare them for a highly mediated world.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Early Childhood Literacy·DateApr 15, 2010

Keep eating your fruit and vegetables

A new Lancet editorial promotes the 'eat 5 fruit and veg a day' message despite recent findings suggesting a lower protective effect against cancer. Four key benefits remain: heart disease prevention, strong protection against specific cancers, weight management, and bowel cancer prevention.

SourceThe Lancet_DELETED·JournalThe Lancet·DateApr 15, 2010
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.

Black men with chronic pain at higher risk for depression, disability

A University of Michigan Health System study found black men with chronic pain experience more severe symptoms, leading to increased disability and depression. The study highlights the need for a culturally appropriate approach to caring for black men with chronic pain.

SourceMichigan Medicine - University of Michigan·JournalJournal of the National Medical Association·DateApr 15, 2010

Rare gene variants linked to high risk of broad range of seizure disorders

Scientists at Duke University Medical Center discovered a strong link between rare gene variants on chromosome 16 and the development of various seizure disorders. The study found that deletions in this region can cause a wide range of neurological disorders, including schizophrenia and specific forms of epilepsy.

SourceDuke University Medical Center·JournalAmerican Journal of Human Genetics·DateApr 15, 2010

Mount Sinai researchers discover genetic framework to explain and predict adverse drug reactions

Researchers at Mount Sinai School of Medicine have discovered a genetic framework that can explain and predict adverse drug reactions, including heart arrhythmias. The framework, developed by Ravi Iyengar and his team, uses genetic information to identify potential risks for arrhythmias in patients taking certain medications.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalScience Signaling·DateApr 15, 2010

Better training needed to curb 'fatism' within the health professions

A new study published in the journal Obesity found that medical and allied health professions need to present a balanced view of obesity causes and treatment when training young professionals. This approach resulted in significant reductions in obesity prejudice. The research suggests that health educators should deliver convincing, ba...

SourceUniversity of Manchester·JournalObesity·DateApr 15, 2010
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Uncovering early stages of Alzheimer's disease

Researchers discovered that regions of the brain with increased amyloid-beta deposits are not the same as those with atrophy due to neuron loss. The study found that these regions can disrupt connections with the hippocampus, leading to neuron death.

SourceCSIRO Australia·DateApr 15, 2010

Scientists isolate portion of virus that causes pink eye

Researchers have isolated a portion of the adenovirus responsible for causing pink eye, finding that its protein coating is the key to inflammation in the eyes. This discovery offers new hope for developing a treatment for this highly contagious and common condition.

SourceMass Eye and Ear·JournalPLOS Pathogens·DateApr 15, 2010

From wimp to jock: How a cell motor gets pushy

A University of Utah researcher helped discover how a protein motor works with two other proteins to move nerve cells and components inside them. Mutant LIS1 has been linked to the classic form of lissencephaly, a devastating brain malformation due to defective migration of nerve cells within the developing brain.

SourceUniversity of Utah·JournalCell·DateApr 15, 2010

Grape news: New treatment combination safe alternative to sulfur dioxide

Researchers have developed a new technique that combines hot water treatment, rachis removal, and modified atmosphere packaging to extend shelf life of table grapes. This alternative method maintains higher oxygen retention, lower carbon dioxide accumulation, and reduced microbial populations compared to conventional packing methods.

SourceAmerican Society for Horticultural Science·JournalHortScience·DateApr 15, 2010
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Study pins factors behind geography of human disease

A new study by North Carolina State University researchers links the number of diseases in a region to its climate and biodiversity, with hot, wet climates having more pathogens. The prevalence of diseases, however, is influenced by health-care spending, particularly in regions with low spending.

SourceNorth Carolina State University·DateApr 15, 2010

Perhaps a longer lifespan, certainly a longer 'health span'

Researchers found that calorie restriction influences the same molecular pathways related to aging in all animals studied, leading to improved health and reduced chronic diseases. By understanding these pathways, scientists may develop interventions or medicines to promote healthy aging.

SourceWashU Medicine·JournalScience·DateApr 15, 2010
Meta Quest 3 512GB

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

Odor pleasantness shown to be partly hard-wired

Researchers developed an algorithm that enables eNoses to rate novel odors on a scale of pleasantness, achieving high accuracy in predictions, and suggesting a fundamental cross-cultural similarity in odorant pleasantness. The study's findings may lead to new methods for odor screening and environmental monitoring.

SourcePLOS·JournalPLOS Computational Biology·DateApr 15, 2010

Neurons growing in line

Researchers grew two populations of neurons in microfluidic platforms, forming synaptic connections and enabling manipulation with drugs or neurotransmitters. The system allows for visualization and control of synapse dynamics, shedding light on memory formation and pharmaceutical development.

SourceGoethe University Frankfurt·JournalNeuron·DateApr 15, 2010

$2.3 million in NIH funding for promising cancer research at Cincinnati Children's

Two scientific teams at Cincinnati Children's Hospital Medical Center are receiving a total of $2.3 million in research funding to continue studies on novel treatments for leukemia and bone marrow failure. The researchers aim to develop new therapeutic strategies targeting CDC42 and FA protein complexes to eliminate leukemia stem cells.

SourceCincinnati Children's Hospital Medical Center·DateApr 15, 2010
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Low vitamin D levels associated with more asthma symptoms and medication use

Research at National Jewish Health found low vitamin D levels in children with asthma were associated with poorer lung function, higher allergy markers, and increased medication use. Vitamin D supplementation may help reverse steroid resistance and reduce medication needed for asthmatic patients.

SourceNational Jewish Health·JournalJournal of Allergy and Clinical Immunology·DateApr 15, 2010

Rock of ages: Clues about Mars evolution revealed

A new study reveals that a Martian meteorite, ALH84001, is approximately 4.091 billion years old, significantly younger than previously estimated ages. This finding suggests that volcanic activity was ongoing in Mars for much of its history and has implications for understanding the planet's evolution.

SourceUniversity of Houston·JournalScience·DateApr 15, 2010

Slobbery kisses from 'man's best friend' aid cancer research

A TGen and VARI program is studying naturally occurring cancers in dogs to better understand the causes of disease and develop new treatments. The goal is to translate knowledge into therapeutics that can help both humans and animals, with a focus on rare sarcomas and osteosarcoma.

SourceThe Translational Genomics Research Institute·DateApr 15, 2010
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.

Source of zodiac glow identified

New research identifies Jupiter Family comets as the primary source of the zodiacal cloud's eerie glow, contradicting previous theories that pointed to asteroid dust.

SourceSouthwest Research Institute·DateApr 15, 2010

Minorities hit hardest by arthritis

Arthritis disproportionately affects African Americans and Hispanics, with higher prevalence of activity limitation, work limitation, and severe joint pain. Simple steps like weight loss and physical activity can make a big difference in managing arthritis.

SourceArthritis Foundation·DateApr 15, 2010
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.

Demystifying yield fluctuations for greenhouse tomatoes

A new study by Tadahisa Higashide predicts greenhouse tomato yield fluctuations based on solar radiation, improving predictability and profitability. The model strongly correlates fluctuations in fruit number and yield with solar radiation before anthesis.

SourceAmerican Society for Horticultural Science·JournalHortScience·DateApr 15, 2010

Switchgrass proves viable as nursery container substrate

Researchers found that switchgrass can provide a suitable substrate for short-production-cycle woody crops, with fine-milled switchgrass being more consistent with normal nursery container substrates. The study showed that roses grown in switchgrass substrate had low to moderate levels of calcium and iron but were of high quality.

SourceAmerican Society for Horticultural Science·JournalHortScience·DateApr 15, 2010

Common PGR helps creeping bentgrass weather drought

A new study finds that trinexapac-ethyl reduces water depletion, evapotranspiration rates, and improves turf quality in creeping bentgrass during drought stress. The treatment maintains higher leaf relative water content and osmotic adjustment under drought conditions.

SourceAmerican Society for Horticultural Science·JournalJournal of the American Society for Horticultural Science·DateApr 15, 2010

Study: US church attendance steady, but makeup of churchgoers changes

A US study finds that church attendance has held relatively constant over three decades, but the demographics of attendees have shifted, with women, Catholics, and southerners seeing their influence wane. Education levels and rising minority populations are linked to these changes.

SourceUniversity of Nebraska-Lincoln·JournalSociology of Religion·DateApr 15, 2010
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Caltech-led team uncovers new functions of mitochondrial fusion

A Caltech-led team discovered that mitochondrial fusion is highly protective against high loads of mitochondrial DNA (mtDNA) mutations. Without fusion, mtDNA levels drop, and the remaining mtDNA contains more mistakes, suggesting that fusion is necessary for mtDNA stability.

SourceCalifornia Institute of Technology·JournalCell·DateApr 15, 2010

Playing a video game before bedtime has only a mild effect on adolescent sleep

A study found that playing a video game before bedtime had only a small impact on the sleep of older male teens, with no significant differences in sleep latency or physiologic arousal. However, playing the game led to a slight increase in cognitive alertness and reduced subjective sleepiness.

SourceAmerican Academy of Sleep Medicine·JournalJournal of Clinical Sleep Medicine·DateApr 15, 2010
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.

Link between solar activity and the UK's cold winters

A new report suggests that low solar activity is associated with colder UK winters due to changes in jet stream patterns. The researchers found correlations between weak solar activity and 'blocking' events, leading to north-easterly winds from the Arctic.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateApr 15, 2010

Molecular discovery points to new therapies for brain tumors

A study by researchers at the University of Texas M.D. Anderson Cancer Center has identified a potential new therapy for brain tumors by analyzing DNA methylation patterns. The discovery may help identify patients with more favorable outcomes and offer a targeted treatment approach.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalCancer Cell·DateApr 15, 2010

Stalagmite reveals carbon footprint of early Native Americans

A new study led by Ohio University scientists suggests that early Native Americans left a bigger carbon footprint than previously thought. By analyzing chemical composition of stalagmites, the researchers found evidence of greenhouse gas emissions due to land use practices such as burning trees for nut production.

SourceOhio University·JournalThe Holocene·DateApr 15, 2010
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.

Disabled UK children more likely to live in poverty

Research finds disabled children in the UK face higher levels of poverty and personal and social disadvantage compared to their non-disabled peers. The study, published in BMC Pediatrics, found that households with disabled children are more likely to rely on social security benefits and experience additional financial costs.

SourceBMC (BioMed Central)·JournalBMC Pediatrics·DateApr 15, 2010

Lung virus taking its toll on young lives, study finds

A new study by the University of Edinburgh found that respiratory syncytial virus (RSV) claims the lives of up to 200,000 children globally each year. The research also showed that about 3.4 million children require hospital treatment for severe lung infection caused by RSV.

SourceUniversity of Edinburgh·JournalThe Lancet·DateApr 15, 2010

Faculty team awarded $2.85 million NSF grant for K-12 education

The Penn State faculty team, led by Renee Diehl, received a $2.85 million NSF grant to develop innovative open-inquiry science curriculum elements related to energy, matter, and materials. The project will foster collaboration and communication skills among STEM graduate fellows and support teacher application of science content.

SourcePenn State·DateApr 15, 2010
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.

ADHD linked to interaction of genetics and psychology

A study found that children with ADHD exhibit more symptoms when they experience high levels of self-blame during inter-parental conflict, which is associated with genetic variations related to serotonin activity. The study suggests a synergistic effect between genetic and environmental factors in the development of ADHD.

SourceBMC (BioMed Central)·JournalBehavioral and Brain Functions·DateApr 15, 2010

'Missing' heat may affect future climate change

Researchers at NCAR suggest that half of the heat believed to have built up on Earth is unaccounted for due to inadequate measurement tools. The scientists call for additional ocean sensors and better data analysis to track the flow of energy through the climate system.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·JournalScience·DateApr 15, 2010
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.

Routine screening for pediatric chronic kidney disease is not effective

Researchers found that only a small percentage of children with abnormal urine dipstick results actually developed chronic kidney disease. The high cost of the test, estimated at $3.47 per patient, made it an ineffective screening method. The study validated American Academy of Pediatrics recommendations to discontinue routine screening.

SourcePenn State·JournalPEDIATRICS·DateApr 15, 2010

New genetic framework could help explain drug side effects

Researchers developed a genetic framework to predict drug side effects and cardiac disorders. The framework integrated genetic, cellular, and clinical information to identify genetic variations associated with QT interval-related diseases.

SourceNIH/National Institute of General Medical Sciences·JournalScience Signaling·DateApr 15, 2010
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.

Cellular channel may open doors to skin conditions, hair growth

A new study from Children's Hospital Boston finds that TRPV3 is a key regulator of skin and hair growth, leading to thinner, less intact skin when knocked out. The researchers suggest that stimulating TRPV3 activity could lead to new treatments for skin conditions, hair growth, or unwanted hair growth.

SourceBoston Children's Hospital·JournalCell·DateApr 15, 2010

Drug shared by addicts seems to protect against HIV brain dementia

Researchers at Georgetown University Medical Center discovered that morphine protects rat neurons against HIV toxicity, a finding that might help design new neuroprotective therapies. Morphine inhibited HIV protein gp120 and induced production of CCL5, which suppresses HIV infection.

SourceGeorgetown University Medical Center·DateApr 15, 2010
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.

NIST detector counts photons with 99 percent efficiency

The NIST team has developed a single photon detector that can count individual photons with 99 percent efficiency. This breakthrough technology improves the accuracy of electronic communication and quantum computing, while also enabling the detection of missing photons in long-distance data transmission to prevent information theft.

SourceNational Institute of Standards and Technology (NIST)·DateApr 15, 2010

Quantity may determine quality when choosing romantic partners

A study of speed dating events found that when men and women have fewer potential partners to choose from, they prioritize physical characteristics like height and weight. In contrast, larger groups lead to a greater emphasis on attributes that can be quickly evaluated, such as education and occupation.

SourceAssociation for Psychological Science·JournalPsychological Science·DateApr 15, 2010

Effectiveness of state-level pecan promotion program evaluated

A recent study found that the Texas Pecan Promotion Program effectively increased demand for Texas pecans and total pecan sales over an 8-year period. The program generated a net revenue of $35 per checkoff dollar spent, benefiting mainly improved pecan varieties.

SourceAmerican Society for Horticultural Science·JournalHortScience·DateApr 15, 2010

The association between sleep disturbances and reduced quality of life varies by race

A recent study reveals that sleep disturbances have a significant impact on health-related quality of life, varying by race. For African-Americans, physical health-related quality of life is significantly worse than in Caucasians, while Hispanics experience greater mental distress due to snoring and insomnia symptoms.

SourceAmerican Academy of Sleep Medicine·JournalJournal of Clinical Sleep Medicine·DateApr 15, 2010
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.