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ScienceDaily: Top News |
| How blood vessels remember a stroke Posted: 15 Jul 2022 05:58 PM PDT Networks adapt over time and in this way form a kind of memory. Researchers show that the structure of blood vascular network is dynamic and can adapt to external factors. In particular, the scientists found that rarely used connections are weakening more and more until they disappear eventually. |
| New insights into melanoma brain metastases Posted: 15 Jul 2022 05:57 PM PDT Cancer researchers have completed one of the most comprehensive studies of the cells inside melanoma brain metastases. |
| Competing cells: Cleaning up after yourself brings benefits Posted: 15 Jul 2022 05:57 PM PDT When different cell types compete in a confined space, those which remove debris faster have a better chance to dominate their environment. Researchers showed in a new model that not only a higher net proliferation rate, but also the swift removal of dead cells provides a competitive advantage. They mixed two cell populations only differing in debris removal rate and showed that already after a few generations the population with the higher removal rate starts to dominate the confined space. |
| Experts don't always give better advice -- they just give more Posted: 15 Jul 2022 12:10 PM PDT New research finds that people given advice by top performers thought that it helped them more, even though it usually didn't. |
| Deformable pump gives soft robots a heart Posted: 15 Jul 2022 12:10 PM PDT Researchers have leveraged hydrodynamic and magnetic forces to drive a rubbery, deformable pump that can provide soft robots with a circulatory system, in effect mimicking the biology of animals. |
| Best available therapy for AIDS-associated Kaposi sarcoma is cost effective in Africa Posted: 15 Jul 2022 11:21 AM PDT New research indicates the best available chemotherapy for Kaposi Sarcoma, which is infrequently used in Africa, is cost effective and would improve clinical outcomes. |
| Protein parts must indeed wiggle and jiggle to work right, new research suggests Posted: 15 Jul 2022 11:21 AM PDT Scientists report they have probed the atomic structure of proteins to add to evidence that the wobbles, shakes and quivers of proteins play a critical role in their ability to function. The findings of the research may help scientists design new drugs that can modify or disrupt the intricate 'dances' of proteins to alter their functions. |
| Amid climate change and conflict, more resilient food systems a must, report shows Posted: 15 Jul 2022 11:21 AM PDT A new study ranks the top 32 threats to food security over the next two decades, pointing to climate change and conflict as top culprits and calling for more coordination in building resilient food systems around the globe. |
| Air samples from Arctic region show how fast Earth is warming Posted: 15 Jul 2022 11:21 AM PDT Researchers report direct observations of size-resolved ice nucleating particles in the central Arctic, spanning the entire sea ice growth and decline cycle. Their results show a strong seasonality of these particles, with lower concentrations in the winter and spring, and enhanced concentrations during summer melt from local biology. |
| Study reveals new mode of triggering immune responses Posted: 15 Jul 2022 11:21 AM PDT Small proteins, called chemokines, that direct immune cells toward sites of infection can also form DNA-bound nanoparticles that can induce chronic, dysfunctional immune responses, according to a new study. The surprising discovery of this new activity for this well-studied class of immune signaling molecules could shed light on some types of immune disorders. |
| Urban agriculture can promote bee communities in tropical megacities Posted: 15 Jul 2022 11:21 AM PDT Urbanization is a primary threat to biodiversity. However, scientists know little about how urbanization affects biodiversity and ecosystem services in tropical regions of the Global South. An international research team has investigated the effects of urbanization on bee communities in smallholder farms in and around Bangalore -- a South Indian city with more than 13 million inhabitants. They found that social bees, such as wild honey bees, suffered more than large solitary bees or those that nest in cavities, which contrasts with results from temperate regions. |
| Complex motions for simple actuators Posted: 15 Jul 2022 11:21 AM PDT Researchers have taken inspiration from origami to create inflatable structures that can bend, twist and move in complex, distinct ways from a single source of pressure. |
| Bacteria-based biohybrid microrobots on a mission to one day battle cancer Posted: 15 Jul 2022 11:21 AM PDT Scientists add artificial components to bacteria for better control and an extra therapeutic effect in seeking and destroying tumor cells. |
| Zombie fly fungus lures healthy male flies to mate with female corpses Posted: 15 Jul 2022 07:58 AM PDT A unique fungus survives by 'bewitching' male flies into mating with dead female flies. The longer a female fly carcass has lain and rotted, the greater the male's lust. |
| Whole blood exchange could offer disease-modifying therapy for Alzheimer's disease Posted: 15 Jul 2022 05:50 AM PDT A novel, disease-modifying therapy for Alzheimer's disease may involve the whole exchange of blood, which effectively decreased the formation of amyloid plaque in the brains of mice, according to a new study. |
| National study offers new bike count models: Combining traditional counters and emerging GPS data Posted: 15 Jul 2022 05:50 AM PDT To ensure bicyclists' needs are considered when improving a transportation system, planners and engineers need to know how many people are biking, and where. Traditional bike counters provide data for limited sections of the bike network, often these counters are installed at important locations like trails or bridges. While limited in location, they count everyone who bikes through. Meanwhile, GPS & mobile data cover the entire transportation network, but that data only represents those travelers who are using smartphones or GPS. Combining the traditional location-based data sources with this new, crowdsourced data offer better accuracy than any could provide alone. |
| Researchers develop better model to study brain-attacking viruses Posted: 14 Jul 2022 11:51 AM PDT A new mouse model might revolutionize development of therapies targeting brain inflammation caused by Rift Valley Fever virus. |
| Sentences have their own timing in the brain Posted: 14 Jul 2022 11:51 AM PDT Our brain links incoming speech sounds to knowledge of grammar, which is abstract in nature. But how does the brain encode abstract sentence structure? In a neuroimaging study, researchers report that the brain encodes the structure of sentences ('the vase is red') and phrases ('the red vase') into different neural firing patterns. |
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