Экологические риски в пригородных и межселенных территориях. Электронный атлас
Many environmental stimuli present a quasi-rhythmic structure at different timescales that the brain needs to decompose and integrate. Cortical oscillations have been proposed as instruments of sensory de-multiplexing, i.e., the parallel processing of different frequency streams in sensory signals. Yet their causal role in such a process has never been demonstrated. Here, we used a neural microcircuit model to address whether coupled theta–gamma oscillations, as observed in human auditory cortex, could underpin the multiscale sensory analysis of speech. We show that, in continuous speech, theta oscillations can flexibly track the syllabic rhythm and temporally organize the phoneme-level response of gamma neurons into a code that enables syllable identification. The tracking of slow speech fluctuations by theta oscillations, and its coupling to gamma-spiking activity both appeared as critical features for accurate speech encoding. These results demonstrate that cortical oscillations can be a key instrument of speech de-multiplexing, parsing, and encoding.
The software digital oceanography atlas is described in this paper. This product consists of a set of oceanographic data calculated using international hydrology sources (GDEM and WOA) and a software for the data set visualization, extracting and access. The atlas is a very useful tool for express-estimations of limit parameters of internal gravity waves in any area in the World Ocean and also for preprocessing of input data for numerical models. Description of user interface, existing functionality and main working modes of the software are presented.
The paper analyses migration balance in urban districts and municipal areas of Russia in 2012-2014 from the perspective of migration balance impact on concentration and deconcentration of the population. We evaluate the general distribution of the municipal unities of this level across the country taking into account the population density characteristics and current ratio of sparsely and densely populated territories. The results of the analysis demonstrate that in nowadays Russia the concentration of the population is intensifying, thus contributing to the growing gap between densely populated cities and deserted territories of poorly inhabited zone. In contrast to many European countries as well as to the USA, where the processes of concentration and deconcentration of population have been replacing each other during the last several decades, Russia keeps the population concentration trend unchanged. The paper looks at two migration flows: 1) from intra-regional periphery to the center – the outflow intensifies as the distance from the center grows; 2) from municipal units with low population density to densely populated territories, primarily to big cities. We also evaluate the role of certain types of migration (intra-regional, interregional and international) in the process of concentration and deconcentration of the population.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.