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Science News for June 27, 2000


Screening embryos for 'problem' chromosomes

Pre-implantation genetic diagnosis (PGD) is improving fertility outcomes for couples with genetic conditions, drastically reducing miscarriages and birth defects in older mothers. PGD can detect aneuploidy and translocations, allowing only healthy embryos to be transferred.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 27, 2000

Saving the whales -- how scientists measure success

Researchers analyze three whale species to assess their recovery status and develop novel approaches to understanding decline. The study highlights the difficulties in determining when a population has recovered, emphasizing the need for data-driven conservation policy.

SourceUniversity of California - Santa Barbara·JournalAmerican Scientist·DateJun 27, 2000
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.

Booming fish farming industry depleting world fish supplies

The study found that aquaculture is contributing to the depletion of fish populations worldwide through inefficient practices and habitat destruction. The authors recommend promoting ecologically sound management and sustainable production methods to reduce the pressure on wild fisheries.

SourceSeaWeb·JournalNature·DateJun 27, 2000

Unexplained infertility -- the way forward in the fog

For couples experiencing unexplained infertility, a five-step treatment program has shown a 75% success rate in conception. The program includes careful evaluation and escalating steps such as antibiotics, intra-uterine insemination, and IVF with ICSI.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 27, 2000
Fluke 87V Industrial Digital Multimeter

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

Research to give authorities new tool in tracking terrorists

Researchers have developed a new technique that can detect explosive residues 10 times lower than existing methods, making it easier for authorities to identify the source of suspicious explosions. The technique may also help track the origin of explosives and manufacturer companies.

SourceUniversity of Florida·DateJun 27, 2000

Food chain length depends on size of pond

Researchers at Cornell University found that larger lakes have longer food chains than smaller ones, contrary to previous assumptions about energy availability. The study suggests that the size of an ecosystem, not energy levels, constrains food-chain length.

SourceCornell University·JournalNature·DateJun 27, 2000

Is testosterone a cause of endometrial cancer?

A team of Dutch doctors and scientists have found a possible link between testosterone and endometrial cancer, with high local pelvic androgen levels and increased expression of androgen receptors detected in patients. The study suggests that androgens may be a co-factor in the development of endometrial cancer.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 27, 2000

Fewer eggs in IVF patients linked to early menopause

A recent study by Dutch fertility experts suggests that women undergoing IVF treatment who have a low number of eggs retrieved are more likely to enter an early menopausal state. The research indicates a correlation between the age of menopause and the number of eggs produced, supporting one of the concepts of reproductive ageing. Howe...

SourceEuropean Society of Human Reproduction and Embryology·DateJun 27, 2000

Don't opt for ART too soon, doctor urges patients and centres

A Dutch gynaecologist warns couples about the risks of Assisted Reproductive Technology (ART) and advises them to consider natural conception first. Nearly half of women who have not conceived after a year will conceive naturally, making informed decisions crucial before treatment.

SourceEuropean Society of Human Reproduction and Embryology·DateJun 27, 2000
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.

University of Florida scientist maps brain reactions to food

Researchers pinpointed the time it takes for the human brain to signal fullness and identified areas involved in eating. The study used functional magnetic resonance imaging (fMRI) to record activity changes in neurons, finding a connection between brain activity and traditional biochemical indicators like glucose and insulin levels.

SourceUniversity of Florida·JournalNature·DateJun 27, 2000

New guidelines needed for medical care of patients with dementia

Patients with dementia often receive inadequate medical care due to a lack of data on the safety and efficacy of treatments. Guidelines need to consider a patient's ability to comprehend, remember, and follow directions, as well as their caregiver's capacity to listen and act.

SourceUniversity of Chicago Medical Center·JournalJAMA·DateJun 27, 2000