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Science News Archive November 2020


Page 43 of 43

Nerves keep pancreatic cancer cells from starving

Pancreatic cancer cells use nerve growth factor to signal nerves to grow into dense tumors and secrete nutrients like serine. This allows the cancer cells to multiply despite nutrient starvation, highlighting a unique adaptation that contributes to their deadliness.

'BAH-code' reader senses gene-silencing tag in cells

Researchers have identified a new and evolutionarily conserved pathway responsible for silencing genes in mammalian cells. BAHCC1 protein is involved in the Polycomb pathway, which generates a chemical tag to silence genes, and its high expression is linked to leukemia, challenging current understanding of gene silencing.

Sleep-deprived mice find cocaine more rewarding

Mice sleep-deprived for research show increased preference for lower doses of cocaine, while rested mice do not. Blocking the orexin system reduces the increased cocaine preference driven by sleep deprivation.

Apple iPhone 17 Pro

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

Evidence of mounted horseback riding in ancient China

Researchers found evidence of mounted horseback riding in ancient China, with signs of chronic use of saddles and metal bits on horse skeletons. The discovery suggests that the region played a crucial role in spreading equestrianism to early Chinese civilizations.

Fossils reveal mammals mingled in age of dinosaurs

A new study reveals that mammals developed social behavior much earlier than previously thought, interacting with dinosaurs in tightly packed clusters. The fossils, which are about 75.5 million years old, show evidence of multiple mature adults and subadults congregating, indicating a complex social structure.

A loan for lean season

Researchers found that small loans during the lean season led to higher quality of life, increased agricultural output, and greater wages. The study's results validated the importance of seasonal variability to rural farmers' livelihoods, highlighting the need for economic interventions that account for this factor.

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.

Microfluidics helps MTU engineers watch viral infection in real time

Researchers used microfluidic devices to study the interaction between viruses and cell membranes, revealing high-resolution understanding of electric shifts happening at the surface. The technique showed that glycine can interrupt capsid formation for replicated viruses within the cell.

Rotation of a molecule as an "internal clock"

Researchers at the Heidelberg Max Planck Institute for Nuclear Physics have investigated ultrafast fragmentation of hydrogen molecules in intense laser fields using a new method. They used the rotation of the molecule as an internal clock to measure the timing of the reaction triggered by a second laser pulse.

Sheer protection from electromagnetic radiation

A KAUST team has developed a printable ink with high conductivity and transparency for use in solar panels and novel electromagnetic wave blocking. The ink's performance was demonstrated in a frequency selective surface, showing decent reflection across multiple frequencies and polarization insensitive results.

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.

Machine learning that predicts anti-cancer drug efficacy

A research team at POSTECH developed a machine learning technique that uses transcriptome information from artificial organoids to predict anti-cancer drug response. This method increases predictive accuracy by selecting only relevant biomarkers, which was previously limited by false signals in conventional machine learning.

Boosting the capacity of supercapacitors

Researchers at KAUST developed a new material that significantly improves the energy density of supercapacitors, enabling quick bursts of energy. The material uses covalent organic frameworks (COFs) with carefully selected molecular functional groups to overcome conductivity limitations.

Beetle larvae think with a brain 'under construction'

Researchers at the University of Göttingen found that beetle larvae start using their brains before they are fully formed, defying conventional wisdom on insect intelligence. The study revealed that key parts of the brain's central complex are active in the larva, allowing it to orient itself in its environment.

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.

Neurosurgeons and malpractice suits

The survey found that spine surgery had the highest number of medical malpractice suits among neurosurgeons. Fear of lawsuits influences their practice, with defensive medicine being a common response. The study highlights the need for transparent communication, better informed consent forms, and fair compensation to patients.