Tech
When some species are heavily hunted, animal mortality increases and they have fewer offspring in the course of their lives.
To compensate for this, animals that are hunted often respond by becoming sexually mature and bearing young earlier than species that are not hunted. In other words, animals being hunted have a "faster" life history.
Cyclic peptide molecules of the fungal origin called cyclosporins were discovered in 1970's, and cyclosporin A soon became an important drug due to its immunosuppressive activity. The details of the biochemical reactions involving cyclosporin were elucidated by the beginning of 1990s, but still some aspects of the behavior of this molecule raise questions. Investigation started in the Nuclear Magnetic Resonance Lab (guided by Professor Vladimir Klochkov) at Kazan Federal University in 2008 and was dedicated mainly to physico-chemical properties of cyclosporin A (CsA).
In a recent paper published in EPJ Special Topics, Jhonathan O. Murcia Piñeros, a post-doctoral researcher at Space Electronics Division, Instituto Nacional de Pesquisas Espaciais, São José dos Campos, Brazil, and his co-authors, map the energy variations of the spacecraft orbits during 'aerogravity assisted' (AGA) manoeuvres. A technique in which energy gains are granted to a spacecraft by a close encounter with a planet or other celestial body via that body's atmosphere and gravity.
It's become common practice for NGOs and environmental development agencies to use 'influencers' for the roll out of environmentally sustainable farming practices, but this isn't always the most effective method, say social network analysts from the University of Sydney.
Be it booking flight tickets, buying a car or finding a new apartment, we always come up against the same question: Should I strike while the iron's hot, or wait until a better offer comes along? People often find it difficult to make decisions when options are presented not simultaneously but one after another. This becomes even more difficult when time is limited and an offer that you turn down now may no longer be available later.
Many goods and service providers in China rely on supplies from local governments, but these are often limited by financial budgets - especially in rural villages. Members of the public must cooperate with their governments and each other in order for this system to run smoothly, but unfortunately, this balance is threatened by a small proportion of individuals who take in welfare without contributing fairly to their communities.
A simple and noninvasive treatment could become a prime post-crystallization process to optimize the optoelectronic properties of hybrid perovskite solar cell materials.
In this treatment devised by KAUST, bromine vapors penetrate the surface of as-synthesized perovskite crystals to reach their deep-lying layers, removing surface and bulk defects generated during crystal growth.
It is a very special kind of light, which can be used for important measurements: so-called frequency combs play a major role in laser research today. While the light of an ordinary laser only has one single, well-defined wavelength, a frequency comb consists of different light frequencies, which are precisely arranged at regular distances, much like the teeth of a comb.
In solid materials, when an electron changes position without another to fill its place, a positively charged 'hole' can appear which is attracted to the original electron. In more complex situations, the process can even result in stable clusters of multiple electrons and holes, whose behaviours all depend on each other. Strangely, the masses of each particle inside a cluster can be different to their masses when they are on their own. However, physicists aren't yet entirely clear how these mass variations can affect the overall properties of clusters in real solids.
CHAMPAIGN, Ill. -- Northern bobwhites are attracted to a habitat based on whether other bobwhites are present there, researchers at the University of Illinois at Urbana-Champaign report. This phenomenon, called conspecific attraction, could aid conservation efforts.
Innovation by ancient farmers to improve soil fertility continues to have an impact on the biodiversity of the Amazon, a major new study shows.
Early inhabitants fertilized the soil with charcoal from fire remains and food waste. Areas with this "dark earth" have a different set of species than the surrounding landscape, contributing to a more diverse ecosystem with a richer collection of plant species, researchers from the State University of Mato Grosso in Brazil and the University of Exeter have found.
Parasitic worms could offer a new treatment hope for patients suffering from the autoimmune disease multiple sclerosis, according to experts from the University of Nottingham.
The findings of the research, published in the journal JAMA Neurology, show that infecting MS patients with a safe dose of the hookworm parasite Necator americanus induces immunoregulatory responses and boosts the number of cells which help keep the immune system under control.
A Rutgers-led study finds that online misinformation, or "fake news," lowers people's trust in mainstream media across party lines. The researchers defined fake news as fabricated information that looks like news content but lacks the editorial standards and practices of legitimate journalism.
June 18, 2020 -- Social distancing and limited access to contraceptive and abortion care during the COVID-19 pandemic is affecting the sexual and reproductive health of adolescents and young adults according to a new study by researchers at Columbia University Mailman School of Public Health and Rutgers University. The researchers address how these challenges, as well as peer and romantic relationships, are being navigated. The findings are published in the journal Perspectives on Sexual and Reproductive Health.
ABERDEEN PROVING GROUND, Md. -- Soon, the U.S. Army will be able to deploy autonomous air vehicles that can change shape during flight, according to new research presented at the AIAA Aviation Forum and Exposition's virtual event June 16.