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Science News Archive February 2003


Page 4 of 9

Corals defy species classification

New research on corals from the Madracis genus reveals significant genetic variation among species, challenging traditional classifications. The study found two distinct species, while four others exhibited considerable overlap in genetic material, making identification difficult.

Word scans indicate new ways of searching the Web

A computer scientist has developed a method to find dominant topics in discussions by scanning large collections of documents for rapid word bursts. This technique could have applications in searching the Web, studying trends in society, and even screening e-mail chatter.

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.

Yucca Mountain nuclear waste repository

A staged development concept for Yucca Mountain aims to allow decisions based on latest available information, avoiding rigid timelines. A pilot stage will study performance before storing large amounts of radioactive waste.

Leatherback sea turtles careening towards extinction

Scientists warn that leatherback sea turtles are on the brink of extinction due to declining populations in Pacific Ocean rookeries. Conservation efforts are needed to reverse this trend, with potential solutions including gear fixes, spatial closures, and changes in consumer demand for swordfish.

Antarctic animals are under threat from illegal fishing

Charismatic Antarctic creatures are under threat from illegal fishing, with seabirds, fur seals, and penguins facing increased competition for food or being killed by fishing gear. Scientific research has led to a dramatic reduction in the number of Antarctic seabirds killed from longline fisheries over the last five years.

Mapping the brain

A new brain atlas developed by neuroscientist David Van Essen aims to improve our understanding of the brain's structure and function. The atlas provides a comprehensive map of the brain's cortical and cerebellar regions, which are essential for thought, learning, emotion, perception, sensation, and movement.

Outpatient setting very safe for skin cancer surgery

A study by Duke University researchers found that outpatient Mohs micrographic surgery is safe, with a complication rate of 1.64% out of 1,343 procedures performed in 2000. The results counter concerns raised by lobbyists and policymakers about the safety of outpatient surgeries.

Apple iPhone 17 Pro

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

Annals of Internal Medicine, tip sheet, February 18, 2003

A new study found that patients in higher-spending regions receive more care, but it does not translate to better outcomes, patient satisfaction, or access to care. Removing liver tumors by ethanol injection therapy followed by interferon therapy may reduce the risk of tumor recurrence in patients with chronic hepatitis C virus.

The nucleus: Not just a bag of chromosomes

New research reveals nucleus is more than just a bag of chromosomes, with key findings including the discovery of rope-like proteins called lamins linked to human diseases. The study also sheds light on the orchestrated process of nuclear breakdown during cell division.

Tariffs and farm subsidies deny health and affluence

Agricultural surpluses and tariffs imposed by wealthy nations deny developing countries the opportunity to produce more food and lift people out of poverty. The solution lies in investing in rural infrastructure, technology, and market structure to increase productivity and reduce hunger.

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.

Symposium highlights industrial-strength math

The symposium highlights the application of advanced mathematical concepts in various industries, including product development and decision-making. Key speakers from IBM, Boeing, and a consultant will discuss trends and opportunities for using mathematics in manufacturing and services, as well as research challenges.

North to discuss psychiatric effects of terrorism at AAAS

Researcher North studies survivors of disasters, including plane crashes and mass shootings, finding most people are resilient but vulnerable to PTSD. People with a history of psychiatric illness are at high risk for developing PTSD, especially those experiencing avoidance and numbing symptoms after disasters.

iScope, you scope, we all scope a mouse brain

The iScope system provides a platform for researchers to study mouse brain tissue samples and advance understanding of complex traits such as dyslexia and schizophrenia. By enabling real-time access to high-resolution images and genetic data, the iScope facilitates international collaboration and accelerates discoveries in neuroscience.

Predicting the birth of big babies

Researchers found that plasma glucose levels were poorly correlated with birth weight, and factors like smoking, pregnancy weight, and weight gain during pregnancy were more important predictors. The authors also questioned the historic link between gestational diabetes and large-for-gestational-age (LGA) neonates.

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.

The human eye can self-correct some optical faults

Researchers at Cornell University found that the human eye can compensate for certain types of optical faults, such as corneal astigmatism and high-order aberrations. The study used wavefront analysis to measure deviations in the eye's optics and found evidence of internal compensation mechanisms.

There's no business like snow business

Breakthroughs in snow making and ski design are transforming the industry. Advances in understanding snowflake formation will improve skiing and our knowledge of the natural world. Researchers also explore the applications of snow science to condensed matter and the origins of arctic phenomena like 'rock circles' and lightning.

New monsoon forecasting method could increase crop yields

A new monsoon forecasting method developed by Professor Peter Webster could guide farmers in choosing optimal planting times and making informed decisions about water management. This technique, applicable to any monsoon region, has the potential to create a significant increase in crop yields without relying on pesticides or fertilizers.

Infants may offer clues to language development

Researchers found that infants as young as 6.5 months can recognize word boundaries by identifying sound patterns in speech. As they mature, they rely on stressed syllables to determine word ends and begin. The study provides insight into how humans acquire language.

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.

Pavlov's flies: Researchers identify fruit fly memory mutants

Researchers at Cold Spring Harbor Laboratory identified 92 unique fruit fly memory genes that could be important for understanding human learning and memory. The study found that many of these genes have counterparts in humans and may be potential targets for developing therapies to treat Alzheimer's disease.

Ecological effects of climate change include human epidemics

A study by Pascual and coworkers reveals that climate variability from ENSO influences cholera cycles, with a stronger link during warm events. Understanding this connection is crucial as ENSO predictions suggest a potential increase in disease variability under global warming.

Scientist pursues role of possible new cell type

A researcher has found a new cell type, VENT cells, that can give rise to all four major types of human tissue. This discovery challenges the existing understanding of human development and opens up new avenues for research into diseases such as Hirschsprung's disease and esophageal reflux disease.

Unique fleet of underwater vehicles to gather elusive environmental data

A Virginia Tech researcher is developing a fleet of low-cost, miniature autonomous underwater vehicles (AUVs) to collect elusive environmental data in Hog Island Bay. The AUVs will be equipped with sensors to monitor water parameters and work cooperatively to gather data that can't be collected with traditional methods.

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.

[Mis]understanding village abandonments

Researchers found that Native American communities persisted for long periods, with some lasting over three centuries, due to successful farming practices and social ties. The study challenged the common misconception of village abandonment as a failure of community life.

Brief exposure to Mandarin can help American infants learn Chinese

Researchers found that 9-month-old American infants exposed to Mandarin Chinese were able to distinguish phonetic units of the language, even when exposed for less than five hours. This suggests that social interaction plays an important role in language learning and that brief exposure can have long-lasting effects.

Can carbon sequestration solve global warming?

Researchers explore new power plants that capture carbon dioxide before it leaves the facility, as well as synthetic trees that pluck carbon from the air. Despite promising results, challenges remain, including proper water disposal and reducing greenhouse gas emissions.

Rich, poor, the wait is the same

A study by Shortt and Shaw found no correlation between socioeconomic status and waiting times for elective surgical procedures. The authors suggest that health reforms should track trends in service delivery to vulnerable groups, highlighting the need for equity in healthcare.

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.

Leaving hospital AMA

Patients who leave hospital against medical advice (AMA) are at a higher risk of being readmitted, with 21% likelihood compared to 3% for routine discharges. Readmissions often occur within the first 15 days after discharge.

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.

Brain imaging study sheds light on inner workings of human intelligence

A new brain imaging study from Washington University in St. Louis has shed light on the inner workings of human intelligence, revealing that individuals with higher fluid intelligence use specific brain regions to resist distraction and maintain focus. The study found that participants with higher fluid intelligence engaged several key...

Stanford researchers identify genes involved in tuberculosis latency

Researchers have identified 48 genes involved in tuberculosis latency, revealing a genetic program that contributes to the bacteria's persistence. The study also highlights the delicate balance between latency and virulence, with reactivation triggered by changes in oxygen levels and nitric oxide levels.

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.

Mechanism controls movement of cell structures

Researchers at the University of Iowa have identified a protein that couples vacuoles to the organelle transportation system, regulating its movement and delivery. This discovery may improve understanding of embryonic development and have implications for various diseases.

Genebanks: Preserving genetic diversity for Earth’s future

Researchers are turning to gene banking as an alternative to in situ conservation, using cryopreservation technologies to store viable cell lines from over 3,200 individual mammals, birds, and reptiles. This approach will be crucial for conserving endangered species' genetic material for future research and potential reintroduction.

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.

Celestron NexStar 8SE Computerized Telescope

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

Forensics – bringing bacteria into the courtroom

Scientists are developing a comprehensive microbial forensics infrastructure to track down pathogens and infer their origin. The goal is to use genetic information to identify the source of outbreaks, such as anthrax attacks, and provide quality control for new molecular methods like genome sequencing.

Fossil plant and insect communities key to understanding global change

Researchers have analyzed fossil records of plants and insects to understand how the Earth's climate has changed over time. The study reveals that the K-T boundary, which marked the extinction of dinosaurs, was caused by an extraterrestrial impact, while the P-E interval saw a more gradual change due to global warming.

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.

Predicting the climate of the 21st century

Warren Washington predicts that the global climate will continue to warm into the 22nd century, albeit at a slower rate than if emissions are not controlled. Climate extremes such as heat waves, floods, and droughts are expected to become more severe and frequent.

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.

Microbial forensics: An overview (news briefing and symposium)

Experts are exploring ways to validate and interpret genetic information from microbes in court cases. The lack of established standards poses a challenge, but advancements in molecular technology have made it possible to analyze DNA and RNA levels with new insights.

New strategies against disease revealed as scientists probe genes' tasks

Researchers are uncovering key genes and their interactions in diseases such as Down's Syndrome, autism, and tuberculosis. The goal is to identify markers for disorders like autism that could be detected by blood tests, and develop new treatments like drugs targeting gene adaptation mechanisms.

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.