Cells use concentration gradients as a compass
Biophysicists at Ludwig-Maximilians-Universitaet (LMU) in Munch have developed a new theory, which accounts for the observation that cells can perceive their own shapes, and use this information to direct the distribution of proteins inside the cell......»»
The first assimilation of CryoSat-2 summer observations provides accurate estimates of Arctic sea ice thickness
Scientists have improved a data assimilation system for better estimating Arctic summer sea ice thickness (SIT) by assimilating satellite-based summer SIT and ice concentration data with an incremental analysis update (IAU) approach. Their study show.....»»
Model suggests that mammalian sperm cells have two modes of swimming
A new mathematical model predicts that mammalian sperm cells have two distinct swimming modes. This prediction opens new questions about potential connections between sperm cells' motor activity and their transitions to hyperactivation phases that ma.....»»
Plants" ingenious defense against mutational damage
Humans wouldn't last long without plant mitochondria and chloroplasts. These essential compartments of plant cells famously capture sunlight and power plant life—and so, ultimately, provide all the food we eat. But there's a problem: Mitochondria a.....»»
Researchers develop stable and efficient inorganic CsPbI3 solar cells
The chemical and thermal stable inorganic cesium lead triiodide (CsPbI3) perovskite has shown great potential for photovoltaic applications. DMAPbI3 (dimethylammonium [DMA]) or "HPbI3"-assisted crystallization is effective for the preparation of high.....»»
Researchers can now visualize osmotic pressure in living tissue
In order to survive, organisms must control the pressure inside them, from the single-cell level to tissues and organs. Measuring these pressures in living cells and tissues in physiological conditions is a challenge......»»
BenQ LaptopBar review -- appealing lightbar for MacBook Pro
BenQ's new LaptopBar is an overhead light that attaches to a MacBook Pro or MacBook Air to help focus your concentration, and reveal how dirty your keyboard has become.Such a slim lamp is bright and oddly comfortingThere is presumably a stronger argu.....»»
Battery startup ONE begins making its own cells in metro Detroit
Our Next Energy Inc., the Novi-based battery startup led by Apple Inc. veteran Mujeeb Ijaz, has started making prototype cells at its Michigan battery plant — an early milestone in its goal to become a homegrown U.S. battery manufacturer......»»
Where the heck did all those structures inside complex cells come from?
There are competing theories about the origin of the nucleus and endoplasmic reticulum. Enlarge / Computer illustration of mitochondria, membrane-enclosed cellular organelles that produce energy. (credit: KATERYNA KON/SCIENCE PHO.....»»
Scientists develop new method to create stable, efficient next-gen solar cells
Next-generation solar materials are cheaper and more sustainable to produce than traditional silicon solar cells, but hurdles remain in making the devices durable enough to withstand real-world conditions. A new technique developed by a team of inter.....»»
Tuning properties of membrane and catalyst layers optimizes reactors for fuel cells and more
Ethylene is a chemical widely used as a feedstock for producing polymers and industrial chemicals. Oxidative coupling of methane (OCM) is a promising, energy-efficient way of creating ethylene from natural gas by reacting methane with oxygen. However.....»»
Researchers report effect of hypoxia on periosteal stem cells
A new study has shown that the interaction of miR-584-5p and RUNX2 could mediate PSC osteogenic differentiation induced by hypoxia. The work is published in the World Journal of Stem Cells......»»
The intricate mechanisms of epigenetic silencing
Epigenetic silencing, which involves the suppression of gene activity, is a fascinating and increasingly influential branch of biological sciences. It allows cells to remember and maintain specific gene expression patterns throughout development and.....»»
Mammalian cells may consume bacteria-killing viruses to promote cellular health
Bacteriophages, also called phages, are viruses that infect and kill bacteria, their natural hosts. But from a macromolecular viewpoint, phages can be viewed as nutritionally enriched packets of nucleotides wrapped in an amino acid shell......»»
New imaging method reveals activity of cells that break down bone
Bone may seem as if it's a hard, lifeless structure, but now the cells living within have been imaged in unprecedented detail, thanks to an innovative imaging method developed at the Garvan Institute of Medical Research......»»
Tesla"s Cybertruck promises to test America"s great political divide
EV ownership is deeply tied to voting behavior in the U.S., according to a report by BloombegNEF. For every 10 percentage-point increase in Joe Biden’s share of votes in the 2020 election, the concentration of EVs was roughly 50% higher......»»
Autophagy"s role in DNA loss and survival of diploid yeast cells during chronological aging
A new research paper titled "Live while the DNA lasts. The role of autophagy in DNA loss and survival of diploid yeast cells during chronological aging" has been published in Aging......»»
A mechanism that controls the genomic structure during early differentiation into neuroectoderm
A group of scientists have discovered that a one of the components of the polycomb-type of transcriptional repressor complex (PRC), Phc1 (Rae28), regulates the chromatin state of cells and plays a critical role in the process of undifferentiated cell.....»»
A protein that helps plant cells "eat themselves"
Scientists from the Department of Experimental Plant Biology at the Faculty of Science of Charles University have published research in Nature Plants that brings new insights into the function of the ARP2/3 protein complex in plant cells. It turns ou.....»»
Lysosomes prove to be quick-change artists with respect to nutrient availability in the cell
Lysosomes play an important role in cells and tissues, controlling not only the degradation of substances but also cell division and growth. A team led by Professor Volker Haucke and Dr. Michael Ebner at the FMP has investigated how these two functio.....»»
Exploring cell-to-cell signals in plants that trigger photosynthesis and defense mechanisms
Traffic lights signal to cars and buses when to stop, slow and go. Much like traffic lights, plant cells send signals to each other to perform photosynthesis to grow or fight off destructive viruses and pathogens......»»