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2019

Новости за 18.10.2019

Lack of generalization between explicit and implicit visuomotor learning

Plos.org 

by Jinsung Wang, Shancheng Bao, Grant D. Tays

Visuomotor adaptation has been thought to occur implicitly, although recent findings suggest that it involves both explicit and implicit processes. Here, we investigated generalization between an explicit condition, in which subjects reached toward imaginary targets under a veridical visuomotor condition, and an implicit condition, in which subjects reached toward visual targets under a 30-degree counterclockwise rotation condition. In experiment 1... Читать дальше...



Experienced males recognise and avoid mating with non-virgin females in the western flower thrips

Plos.org 

by Adeyemi O. Akinyemi, William D. J. Kirk

The western flower thrips Frankliniella occidentalis (Thysanoptera: Thripidae) is a major insect pest on a wide range of crops throughout the world. There are several unexplained aspects of the mating behaviour, particularly in relation to male-male competition and mate choice. The objectives of the study were to test whether males can detect the mating status of females and whether males avoid mating with previously mated females. Experiments involved... Читать дальше...

The relationship between sleep quality, inappropriate medication use and frailty among older adults in aged care homes in Malaysia

Plos.org 

by Suresh Kumar, Pei Se Wong, Syed Shahzad Hasan, Therese Kairuz

Poor sleep quality is prevalent among older adults and is compounded by frailty and polypharmacy. This descriptive, cross-sectional study examines the associations between sleep quality, inappropriate medication use and frailty. The study was conducted among 151 residents of 11 aged care homes in three states in Malaysia; convenience sampling was used. Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI)... Читать дальше...

Generation of deletions and precise point mutations in Dictyostelium discoideum using the CRISPR nickase

Plos.org 

by Hoshie Iriki, Takefumi Kawata, Tetsuya Muramoto

The CRISPR/Cas9 system enables targeted genome modifications across a range of eukaryotes. Although we have reported that transient introduction of all-in-one vectors that express both Cas9 and sgRNAs can efficiently induce multiple gene knockouts in Dictyostelium discoideum, concerns remain about off-target effects and false-positive amplification during mutation detection via PCR. To minimise these effects, we modified the system to permit... Читать дальше...

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Москва

За кулисами бизнес-конференции MEDIABOSS


Use of personalised risk-based screening schedules to optimise workload and sojourn time in screening programmes for diabetic retinopathy: A retrospective cohort study

Plos.org 

by Andreas Ochs, Stuart McGurnaghan, Mike W. Black, Graham P. Leese, Sam Philip, Naveed Sattar, Caroline Styles, Sarah H. Wild, Paul M. McKeigue, Helen M. Colhoun, on behalf of the Scottish Diabetes Research Network Epidemiology Group and the Diabetic Retinopathy Screening Collaborative

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Biofilm-associated toxin and extracellular protease cooperatively suppress competitors in Bacillus subtilis biofilms

Plos.org 

by Kazuo Kobayashi, Yukako Ikemoto

In nature, most bacteria live in biofilms where they compete with their siblings and other species for space and nutrients. Some bacteria produce antibiotics in biofilms; however, since the diffusion of antibiotics is generally hindered in biofilms by extracellular polymeric substances, i.e., the biofilm matrix, their function remains unclear. The Bacillus subtilis yitPOM operon is a paralog of the sdpABC operon, which produces the secreted peptide toxin SDP. Читать дальше...

Viral quasispecies

Plos.org 

by Esteban Domingo, Celia Perales

Viral quasispecies refers to a population structure that consists of extremely large numbers of variant genomes, termed mutant spectra, mutant swarms or mutant clouds. Fueled by high mutation rates, mutants arise continually, and they change in relative frequency as viral replication proceeds. The term quasispecies was adopted from a theory of the origin of life in which primitive replicons) consisted of mutant distributions, as found experimentally with present day RNA viruses. Читать дальше...


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Уимблдон

Российская теннисистка Александрова снялась с "Уимблдона" из-за болезни






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