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Science News for November 19, 2002


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.

Heart devices, transplants have similar costs; what will we pay?

A landmark study found that left-ventricular assist devices (LVADs) for heart failure patients cost $196,699, similar to liver transplantation ($250,000). The device has been shown to significantly improve survival and quality of life. Improving management of these critically ill patients could reduce costs.

SourceAmerican Heart Association·DateNov 19, 2002

Ovarian cancer detected in blood samples

Researchers used digital SNP analysis to detect ovarian cancer in 87% of early-stage and 95% of late-stage patients, with high total DNA amounts found in most cancer cases. The test holds promise for improved detection in a wide range of cancers.

SourceJohns Hopkins Medicine·JournalJNCI Journal of the National Cancer Institute·DateNov 19, 2002
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.

The growing Staphylococcus aureus arsenal

The study reveals the role of Map in promoting S. aureus persistence and survival in infected mice by interfering with T cell function. Researchers warn that the increasing prevalence of multidrug-resistant strains poses a significant threat to public health.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 19, 2002

ACS grant to study estrogen's role in breast cancer

Researchers at Cornell University aim to learn how enzymes modify estrogen receptors, potentially leading to better diagnostic and therapeutic options for breast cancer patients. The study aims to clarify the molecular details of the estrogen-signaling pathway in normal and diseased tissues.

SourceCornell University·DateNov 19, 2002

Economists may have much to offer child development experts

Child development experts may benefit from economists' tools to analyze the effect of resources on key outcomes like schooling, illness, and death. Economists can help broaden perspective on issues like day care by incorporating family resources and preferences into their models.

SourceCenter for Advancing Health·JournalChild Development·DateNov 19, 2002

Diverse employment in Europe

The study reveals striking differences in employment rates across Europe, with Greece having ten times more people working in agriculture than the UK. Non-working households are common in many EU countries, but married women's employment rates do not affect this trend.

SourceEconomic & Social Research Council·DateNov 19, 2002
Apple iPhone 17 Pro

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

Targeting bone metastasis and hypercalcemia

Researchers have identified two compounds that inhibit PTHrP production, reducing metastatic bone breakdown and tumor burden. The findings suggest potential therapeutic benefits for treating both bone metastasis and hypercalcemia in breast cancer patients.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 19, 2002

US child care seriously lags behind that of Europe

The US child-care system faces significant shortcomings, including fragmented funding, low quality of care, and limited access to education-focused models. European countries offer alternative models, such as France's free public childcare system and Denmark's focus on working parents.

SourceAmerican Sociological Association·Journalسياقات اللغة والدراسات البينية·DateNov 19, 2002

Osama bin Laden and other thoroughly modern muslims take on the World

Researcher Charles Kurzman argues that Islamist movements are divided on how to achieve their goals, with some seeking democratic change while others pursue terrorism. Despite their notoriety, Islamists remain unpopular among Muslims.

SourceAmerican Sociological Association·Journalسياقات اللغة والدراسات البينية·DateNov 19, 2002

Scientists reveal a new way viruses cause cells to self-destruct

Researchers found that a virus uses a protein called actin to destroy its own cells, allowing it to escape and infect other cells. The discovery provides new insights into viral infections and could lead to the development of antiviral agents.

SourceDOE/Brookhaven National Laboratory·JournalJournal of Biological Chemistry·DateNov 19, 2002
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.

Robotic heart surgery: making repairs without lifting the hood

A team of surgeons successfully repaired the hearts of patients with atrial septal defect or patent foramen ovale using robotic arms, resulting in faster recovery times and less scarring compared to traditional open-heart surgery. The new procedure uses minimally invasive technology, allowing for a three-inch incision instead of a foot...

SourceAmerican Heart Association·DateNov 19, 2002

Genotyping targets individuals at high risk for H. pylori-associated stomach cancer

A study has identified specific combinations of H. pylori bacterial strain and host genetic variations that increase the risk of stomach cancer in infected individuals. These findings suggest that personalized genotyping can help identify high-risk individuals, who may benefit from targeted H. pylori eradication treatment.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateNov 19, 2002

Study: Heart-assist device yields excellent survival

A six-year study of 100 heart failure patients who received the HeartMate device at Michigan Medicine found excellent one-year survival rates and improved hospital stays. Eighty-two percent of patients were able to go home, and problems with the device have decreased as doctors gain experience.

SourceMichigan Medicine - University of Michigan·DateNov 19, 2002
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.

Heart gone haywire blamed in some sudden infant deaths

A study by the American Heart Association suggests that long Q-T syndrome, a heart condition, may be responsible for some sudden infant deaths. Researchers analyzed DNA from frozen heart tissue of unexplained infant deaths and found genetic anomalies in 32% of cases.

SourceAmerican Heart Association·DateNov 19, 2002

Other highlights in the November 20 issue of JNCI

Two new studies published in the Journal of the National Cancer Institute identified key risk factors for classical Kaposi's sarcoma and found that smoking may decrease the risk of this disease. Meanwhile, research on leptin suggests it controls breast cancer cell proliferation. Additionally, a potential screening tool for ovarian canc...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateNov 19, 2002

JCI Table of Contents, November 18, 2002

Researchers discover two compounds that inhibit parathyroid hormone-related protein production in human breast cancer cells, reducing metastatic bone breakdown and calcium levels. The findings suggest a novel therapeutic approach to treating bone metastasis and hypercalcemia in breast cancer patients.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 19, 2002

Influences of sex on gene expression discussed at annual conference

The annual conference discussed sex differences in development, immune system responses, and hormone effects on disease progression. Key findings included the role of microchimerism, fetal cells in maternal circulation, and steroid hormones in autoimmune diseases, such as multiple sclerosis and breast cancer.

SourceSociety for Women's Health Research·DateNov 19, 2002

Chest compression device outperforms manual CPR

A new chest compression device has been shown to restore blood flow four times better than manual compressions, potentially saving more lives. Researchers tested the device on 20 pigs in cardiac arrest and found it restored vital organs with improved oxygenation.

SourceJohns Hopkins Medicine·DateNov 19, 2002
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.

Researchers create DNA 'nanocircles' to probe the mystery of aging in human cells

Scientists at Stanford University have created synthetic DNA nanocircles that can lengthen telomeres in test tube cells, a key factor in determining cell lifespan. This breakthrough could lead to the development of new methods for studying aging and cancer, as well as alternative approaches to transplantation medicine.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateNov 19, 2002

Imatinib shows early promise against Ewing’s sarcoma

Researchers found imatinib inhibited tumor growth and cell proliferation in mice with human Ewing's sarcoma tumors, offering a potential new therapy for the disease. Higher concentrations of imatinib were needed to kill Ewing's sarcoma cells than other tumor cells.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateNov 19, 2002

Social Science techniques are important to anti-terrorism programs

The American Psychological Association and FBI report highlights the importance of social science techniques in combating terrorism. Three key strategies emerge: information exchange using data mining and decision tree techniques, relationship-building with key communities, and effective interrogation/interviews.

SourceAmerican Psychological Association·DateNov 19, 2002
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.

Nisqually earthquake damaged 300,000 Puget Sound households

The study found that household damages were not always proportional to levels of ground motion, with average damages being almost identical in high and medium ground motion zones. The majority of damage ($913 million) occurred in the medium ground motion zone, which is where nearly 60% of Puget Sound households are located.

SourceUniversity of Washington·DateNov 19, 2002