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Science News for August 5, 2003


Measuring the shape of an exploding white dwarf star

Researchers measured the polarization of light emitted by supernova 2001el, detecting slight flattening at peak brightness, and later spherical symmetry. This discovery helps validate Type Ia supernovae as standard candles for cosmology.

SourceDOE/Lawrence Berkeley National Laboratory·DateAug 5, 2003

Cervical cancer vaccine may lose effectiveness during ovulation

Research suggests that cervical cancer vaccines may be less effective in women who are ovulating, due to fluctuations in antibody levels triggered by sex hormones. The study found higher antibody levels during the proliferative phase and lower levels around ovulation.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 5, 2003
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.

Other highlights in the August 6 issue of JNCI

Consuming phytoestrogens found in plant foods like soy is associated with a reduced risk of endometrial cancer. Imiquimod has been shown to induce apoptosis in skin cancer cells, while an integrin polymorphism may increase cancer progression. The study on breast cancer survivors also found increased numbers of circulating T lymphocytes.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 5, 2003

Is erosion helping Himalayas to grow?

Researchers from Lehigh University and other institutions have found evidence suggesting that erosion and tectonic processes are contributing to the growth of the Himalayas. The study uses short- and long-term measurements, including seismological, geomorphic, and GPS data, to understand the geological processes at play.

SourceLehigh University·DateAug 5, 2003

Drought

The presentation highlights the impacts of major water restrictions and efforts toward community communication during severe droughts. Researchers explore the management of freshwater inflow criteria for affected regions, examining vulnerability to aquatic resources and allocation of water resources in South Africa.

SourceEcological Society of America·DateAug 5, 2003

First human tests under way of HIV vaccine pioneered at UNC

The UNC-led trial is the first human test of an HIV vaccine pioneered at UNC. The vaccine targets cells in lymph nodes and induces an immune response by expressing a small section of genetic material from HIV, aiming to protect against disease if exposed. Researchers hope to refine the vaccine for subsequent generations.

SourceUniversity of North Carolina Health Care·DateAug 5, 2003

Estimated 300 children died in the U.S. from shaken baby syndrome last year

A University of North Carolina study found that infant boys born to younger mothers and non-white mothers are disproportionately affected by shaken baby syndrome. The research estimated 306 child deaths per year from the condition, highlighting the need for increased awareness and preventive interventions among healthcare providers.

SourceUniversity of North Carolina at Chapel Hill·JournalJAMA·DateAug 5, 2003
Apple iPhone 17 Pro

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

New tool helps doctors predict posttraumatic stress after child injury

A new screening tool called STEPP helps predict posttraumatic stress disorder (PTSD) in children after a traumatic injury. The tool assesses event-related factors, physiological reactions, and psychological responses to identify at-risk children, allowing for early referral and intervention.

SourceChildren's Hospital of Philadelphia·JournalJAMA·DateAug 5, 2003

Optical control technique could enable microfluidic devices powered by surface tension

Researchers at Georgia Tech have developed an optical control technique that can enable the production of new types of microfluidic devices without etching channels. By using lasers to create complex patterns of varying-intensity light on a substrate material, differential heating can be achieved, resulting in thermocapillary action an...

SourceGeorgia Institute of Technology Research News·JournalPhysical Review Letters·DateAug 5, 2003

Researchers: Fire may help combat fatal dogwood epidemic

Researchers have found that areas burned in forest fires may support more and healthier dogwoods due to increased light, heat, and airflow. Fire could potentially impede the spread of the fatal disease, dogwood anthracnose, by removing fungal-friendly conditions.

SourceUniversity of Florida·DateAug 5, 2003
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.

March of Dimes supports top scientists, new study finds

A study by March of Dimes found that funded junior scientists were more likely to publish and contribute to scientific discoveries. The organization's grant program successfully invested in talented researchers who went on to make significant contributions.

SourceMarch of Dimes Foundation·JournalAcademic Medicine·DateAug 5, 2003

Eliminating hunger in a world of plenty

The American Dietetic Association asserts that access to adequate nutrition is a fundamental human right, and that hunger continues to affect millions worldwide. The organization supports programs combating hunger and malnutrition, promoting food security and self-sufficiency.

SourceAmerican Dietetic Association·JournalJournal of the American Dietetic Association·DateAug 5, 2003

Purdue scientists discover why we're all lefties deep down

Recent research by Purdue University scientists suggests that the first building blocks of life were left-handed and that a single amino acid called serine set the standard eons ago. This led to all living things evolving using only amino acids of the left-handed variety, forcing other biological molecules to follow suit.

SourcePurdue University·JournalAngewandte Chemie·DateAug 5, 2003

Pigeonholing quantum phase transitions

Researchers have made significant progress in understanding the behavior of materials at quantum critical points, a stage where materials change phases. The new classification system has shed light on the relationship between quantum criticality and high-temperature superconductivity.

SourceRice University·JournalPhysical Review Letters·DateAug 5, 2003
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.

The matrix, seismically loaded

Scientists tested a synthetic earthquake on a half-real building with conventional and simulated steel support columns. The experiment, called the 'Multi-Site Online Simulation Test,' used grid-linked machines to create a realistic simulation of an earthquake, producing a profusion of real-time data.

SourceUniversity of Southern California·DateAug 5, 2003