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Найдено 647 публикаций
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Статья
Butovskaya M., Rostovtseva V., Mkrtchjan R. Social Evolution & History. 2019. Vol. 18. No. 1. P. 110-126.
Добавлено: 28 октября 2019
Статья
Vladimir A. Korshun. European Journal of Medicinal Chemistry. 2018. Vol. 155. P. 77-83.
Добавлено: 8 ноября 2019
Статья
Vladimir A. Korshun. Amino Acids. 2018. Vol. 50. No. 12. P. 1697-1705.
Добавлено: 8 ноября 2019
Статья
Galenko E. E., Galenko A. V., Novikov M. S. et al. ChemistrySelect. 2017. Vol. 2. No. 25. P. 7508-7513.
Добавлено: 25 июня 2019
Статья
Yakubova A., Thorrez L., Svetlichnyy D. et al. Scientific Reports. 2018. Vol. 8. No. 1. P. 1-12.
Добавлено: 2 ноября 2018
Статья
Haufe S., Nikulin V., Müller K. et al. Neuroimage. 2013. No. 64. P. 120-133.
Добавлено: 23 октября 2014
Статья
Martinez-Saito M., Konovalov R., Piradov M. A. et al. European Journal of Neuroscience. 2019. Vol. 50. No. 8. P. 3327-3348.
Добавлено: 25 августа 2019
Статья
Ulianov S., Gelfand M. S., Razin S. et al. Genome Research. 2016. Vol. 26. No. 1. P. 70-84.
Добавлено: 13 марта 2017
Статья
Zheng T. W., O'Brien T. J., Kulikova Sofya P et al. European Journal of Neuroscience. 2014. Vol. 39. No. 5. P. 788-799.
Добавлено: 22 октября 2015
Статья
Tonevitsky A., Baranova A., Maltseva D. Obesity Reviews. 2018. P. 1-11.
Добавлено: 30 октября 2018
Статья
Gerasimova K. Science and Engineering Ethics. 2018. Vol. 24. No. 2. P. 455-477.
Добавлено: 1 августа 2017
Статья
Elizaveta Okorokova, Linderman M., Ossadtchi A. et al. Frontiers in Neuroscience. 2015. Vol. 9. No. 389. P. 1-15.

In recent years, several assistive devices have been proposed to reconstruct arm and hand movements from electromyographic (EMG) activity. Although simple to implement and potentially useful to augment many functions, such myoelectric devices still need improvement before they become practical. Here we considered the problem of reconstruction of handwriting from multichannel EMG activity. Previously, linear regression methods (e.g., the Wiener filter) have been utilized for this purpose with some success. To improve reconstruction accuracy, we implemented the Kalman filter, which allows to fuse two information sources: the physical characteristics of handwriting and the activity of the leading hand muscles, registered by the EMG. Applying the Kalman filter, we were able to convert eight channels of EMG activity recorded from the forearm and the hand muscles into smooth reconstructions of handwritten traces. The filter operates in a causal manner and acts as a true predictor utilizing the EMGs from the past only, which makes the approach suitable for real-time operations. Our algorithm is appropriate for clinical neuroprosthetic applications and computer peripherals. Moreover, it is applicable to a broader class of tasks where predictive myoelectric control is needed.

Добавлено: 15 декабря 2015
Статья
Nierula B., Spanlang B., Borell M. et al. Journal of Physiology. 2019. P. 1-10.
Добавлено: 4 ноября 2019
Статья
Akopov A. S., Beklaryan L. A., Saghatelyan A. K. Ecological Modelling. 2017. Vol. 346. P. 99-118.
Добавлено: 30 декабря 2016
Статья
Butovskaya Marina, Vasilyev V., Lazebny O. Behavior Genetics. 2012. Vol. 42. No. 4. P. 647-662.

Abstract The role of genes in the expression of aggression and masculinity traits in humans has been a focus of recent behavioral genetic studies. This is the first study on the variation in aggression, the digit ratio (the ratio between the second and the fourth digits, 2D:4D), the directional asymmetry in 2D:4D (DR-L) and polymorphisms of the AR, DRD4, and 5-HTTL genes in simple hunter-gatherers, namely the Hadza of Tanzania (142 adult men). The distribution of AR, DRD4E3, and 5-HTTLPR genotypes and allele frequencies in Hadza was compared to other African populations on which the data were available. Hadza and Ariaal differed significantly in the distributions of frequencies of AR alleles with different numbers of CAG repeats. Hadza population was similar to other African populations in the distribution of allelic frequencies of the DRD4E3 locus, and to Afro- Americans in the distribution of allelic types of the 5- HTTLPR locus. We found no influence of AR gene on the right hand 2D:4D ratio,DR-L, and any of aggression subscales of the Buss-Perry Aggression Questionnaire (AQ). Although, a weak positive correlation between CAG repeats and the left hand 2D:4Dwas found. The multiple regression analysis with digit ratios, DR-L and aggression subscales of AQ as dependent variables and the three gene candidates (AR, DRD4E3, and 5-HTTLPR) as independent variables revealed the following: men with lower number of CAG repeats had significantly lower left hand2D:4D ratio;men with highernumbers of 48-bp unit copies in exon 3 of a VNTR polymorphism in the DRD4 gene had significantly lower digit ratios on both hands; no effect of the 5-HTTLPR gene on either the digit ratio or aggressive behavior. These findings demonstrate the complexity of gene effects on digit ratios and aggression and call for simultaneous analysis of more candidate genes. It is noteworthy that these results were obtained for a human population that is still practicing foraging and has been subjected to a high selective pressure due to harsh environments and practically has no access to modern medical care. Hadza are highly egalitarian, and their culture does not favor persons with a dominant or aggressive behavior. It is still to be found to what extent the relationships observed in this study are similar to those in other human populations.

Добавлено: 10 октября 2014
Статья
Terpilowski M., Khmelevskoy D. A., Shchegolev B. F. et al. Biofizika. 2019. Vol. 64. No. 3. P. 374-380.
Добавлено: 4 сентября 2019
Статья
Logvenkov S. A., Stein A. Biofizika. 2017. Vol. 62. No. 6. P. 926-934.

 

Предложена общая континуальная модель среды, составленной механически активными клетками. Среда считается состоящей из трех фаз; собственно клеток, внеклеточной жидкости и дополнительной фазой, отвечающей за активное силовое взаимодействие между клетками, которая, в частности, может соответствовать системе протрузий, обеспечивающих развитие активных стягивающих усилий. Деформация среды, отождествляемая с деформацией клеточной фазы, состоит из двух составляющих: упругой деформации отдельных клеток и клеточных переупаковок. Упругая деформация связана с напряжением в клеточной фазе. Шаровая составляющая тензора напряжений описывает нелинейное сопротивление клеточной фазы, обеспечивающее невозможность ее слишком большого сжатия. Уравнение состояния для давления в клеточной фазе принято в виде нелинейной зависимости от объемной плотности клеток. Переупаковка клеток рассматривается как течение, управляемое напряжениями в клеточной фазе, активными напряжениями и давлением жидкости. Тензор активных напряжений полагается шаровым и нелокально зависящим от плотности клеток. В предположении медленности процесса деформирования биологической ткани получена редуцированная модель, в которой пренебрегается упругими деформациями клеток по сравнению с неупругими. Проведен дисперсионный анализ устойчивости пространственно-однородного стационарного решения. Среди параметров, отвечающих за потерю устойчивости, присутствует гидростатическое давление жидкости, возрастание которого приводит к неустойчивости за счет составляющей силы межфазного взаимодействия, обусловленной этим давлением. Полученная модель используется для описания процесса образования полости в первоначально однородном клеточном сфероиде. Исследована роль локального и нелокального механизмов развития активных напряжений при формировании полости.

 

Добавлено: 30 декабря 2017
Статья
Golubtsov P., Steinshamn S. I. Ecological Modelling. 2019. Vol. 392. P. 67-81.
Добавлено: 18 января 2019
Статья
Newberry R., Lupo A., Jensen A. et al. Atmospheric and Climate Science. 2016. No. 6. P. 375-393.

The spring-to-summer transition is of special importance in long range forecasting, as the general circulation transitions to a less energetic regime. This affects the Midwestern United States in a profound way, since agriculture is very sensitive to the variability of weather and climate. Beginning at the local scale, surface temperature observations are used from a representative station in the West Central Missouri Plains region in order to identify the shift from late spring to early summer. Using upper-air re-analyses as a supplement, the 500-mb height observations are examined to find a spring-to-summer transition date by tracking the location of a representative contour. Each of these is used to identify spring-to-summer transition date and then statistical analysis is performed on this long-term data set. Finally, teleconnections, specifically the influence of El Niño Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO), and blocking are examined in order to quantify interannual variability. It was found that examining these criteria, developed in an earlier study that covered a much shorter time period, produced similar statistics to this 68-year study of spring-to-summer transitions. It was also found that the onset of La Niña was associated with hotter summers in the region, a result first found in the earlier study, but this association in much stronger here.

Добавлено: 8 февраля 2016
Статья
Stepanov B., Natalia Samutina. Urban history. 2018. Vol. 45. No. 1. P. 74-99.

The article discusses the dramatic history of the Tsaritsyno Park and museum-reserve. By the mid-2000s, it had become one of Moscow's iconic places and a zone where urban public culture was shaped. The authors trace the history of this architectural ensemble and park in terms of their role in сity culture and analyse changes in the historical culture of contemporary post-Soviet Moscow. The Tsaritsyno Park and museum exemplify these changes. An unfinished country residence of Catherine II, with a Grand Palace that had stood as a ruin for over 200 years, it has been radically renewed by the Moscow city authorities in what came to be labelled ‘fantasy restoration’. The palace was finished and now serves as the core of the museum, organized according to a controversial historical policy. Tsaritsyno as a whole became a cultural oddity featuring historical attractions for the public, effectively an ‘eighteenth-century theme park’.

Добавлено: 23 октября 2016
Статья
Kulikova S., Hertz-Pannier L., Dehaene-Lambertz G. et al. Plos One. 2016. P. 1-24.
Добавлено: 14 октября 2016