bluuebunny/crossref_metadata_2025 huggingface dataset:
Asociación de la diseminación del COVID-19 con síntomas de ansiedad y depresión en estudiantes universitarios
Authors: Vigo Daniel , Jones Laura , Munthali Richard , Pei Julia , Westenberg Jean , Munro Lonna , Judkowicz Carolina , Wang Angel Y. , Van den Adel Brianna , Dulai Joshun , Krausz Michael , Auerbach Randy P. , Bruffaerts Ronny , Yatham Lakshmi , Gadermann Anne , Rush Brian , Xie Hui , Pendakur Krishna , Richardson Chris
Published: December 2021

Antecedentes: A medida que las comunidades se preparan para oleadas futuras de la pandemia del COVID-19 se necesitan pruebas sobre su impacto en la salud mental de sub-poblaciones específicas, como es el caso de los estudiantes universitarios. Objetivos: Estudiar la asociación de la proximidad del COVID-19 con síntomas de ansiedad y depresión en estudiantes universitarios. Métodos: Este estudio de tendencias analizó encuestas transversales semanales de muestras probabilísticas de estudiantes de la Universidad de Columbia Británica durante 13 semanas durante la primera ola del COVID-19. La principal variable evaluada fue la proximidad del COVID-19, definida como “conocer a alguien con un test positivo para COVID-19”, que se especificó en diferentes niveles: “conocer a alguien en cualquier lugar del mundo, en Canadá, en Vancouver, en su curso universitario, o en su domicilio”. La proximidad del COVID-19 se incluyó en regresiones lineales multivariables para evaluar su asociación con los resultados primarios, incluidos los síntomas de ansiedad y/o depresión durante los últimos 30 días. Resultados: De 1388 encuestados (tasa de respuesta ajustada =50%), el 5,6% conocía a alguien con COVID-19 en Vancouver, el 0,8% en su curso universitario y el 0,3% en su domicilio. El 10% de los encuestados se sintió abrumado y no pudo acceder a asistencia. “Conocer a alguien en Vancouver”, se asoció con un aumento de 11 puntos porcentuales en la probabilidad de presentar síntomas de ansiedad durante los últimos 30 días (EE =0,05; p≤0,05), moderado por género, con una interacción significativa de la exposición, y ser mujer (coeficiente = - 20 (EE =0,09), p≤0,05). No se encontró asociación con síntomas depresivos. Conclusión: La proximidad de los casos de COVID-19 puede aumentar la probabilidad de síntomas de ansiedad en los estudiantes, particularmente entre los hombres. La mayoría de los estudiantes informa que se las arregla bien, pero se necesitan apoyos adicionales para una minoría emocionalmente abrumada que informa que no puede acceder a asistencia.
Introducción al texto de Phillipe Pinel sobre la Melancolía de 1816
Authors: Ferraro Juan Manuel
Published: December 2021

Introducción al texto de Phillipe Pinel sobre la Melancolía de 1816, por Juan Manuel Ferraro.
The norming set of a symmetric 3-linear form on the plane with the $l_1$-norm
Authors: Kim Sung Guen
Published: December 2021

An element $(x_1, \ldots, x_n)\in E^n$ is called a {\em norming point} of $T\in {\mathcal L}(^n E)$ if $\|x_1\|=\cdots=\|x_n\|=1$ and$|T(x_1, \ldots, x_n)|=\|T\|,$ where ${\mathcal L}(^n E)$ denotes the space of all continuous $n$-linear forms on $E.$For $T\in {\mathcal L}(^n E),$ we define $${Norm}(T)=\Big\{(x_1, \ldots, x_n)\in E^n: (x_1, \ldots, x_n)~\mbox{is a norming point of}~T\Big\}.$$${Norm}(T)$ is called the {\em norming set} of $T$. We classify ${Norm}(T)$ for every $T\in {\mathcal L}_s(^3 l_{1}^2)$.
Habilidades para emprender que se vuelven necesarias en el siglo XXI para los jóvenes universitarios
Authors: Coca Singh Carlos David
Published: December 2021

Este trabajo de investigación pretende conocer cuáles son las habilidades actuales necesarias para el desarrollo emprendedor, principalmente en los jóvenes universitarios, y que tan importantes se vuelven en la segunda década del siglo XXI. Para la investigación se toma como muestra el actual estudiantado de la Universidad Nacional Autónoma de Honduras para conocer sus habilidades emprendedoras y, a partir de estas, proponer sistemas educativos que contribuyan al desarrollo de habilidades y al fomento de los emprendimientos. Como procedimiento metodológico se abordan diferentes variables como la existencia de programas de apoyo a los emprendedores y el desarrollo de las habilidades emprendedoras. Así mismo, el método para la comprobación de las hipótesis es de tipo exploratorio, de acuerdo con esta se propone establecer líneas de acción que permiten conocer concretamente algunos elementos en las variables para que los resultados brinden niveles óptimos de credibilidad. Adicionalmente la investigación exploratoria se realiza en un total de doce semanas calendario, en la que se procede a una investigación descriptiva con grupos de interés. Teniendo un alcance descriptivo con el detalle de características del objeto de estudio, mezclando enfoques cualitativos y cuantitativos en la recolección y manejo de la información.
exportaciones peruanas y el nivel de concentración de los mercados de destino periodo 2005-2019
Authors: Macha Roberto
Published: December 2021

El objetivo de la investigación es determinar el nivel de concentración y desigualdad de los mercados de destino de las exportaciones peruanas en el periodo 2005-2019. La perspectiva teórica es el análisis documental y revisión de base de datos, considerando como eje principal el cálculo y análisis de seis índices de concentración y desigualdad. El diseño es no experimental, ex post fáctico o longitudinal de tendencias. Se concluye que el índice de concentración [CR (k)] de los 4 principales mercados, la clasifica como moderadamente alta; los 8 principales, en un nivel de concentración moderadamente baja; y los 20, concentran más del 90% de las exportaciones. El índice de Herfindahl-Hirschman, muestra un nivel no concentrado entre el 2006-2016 y un nivel moderadamente concentrado del 2017 al 2019. El índice de entropía de Theil, muestra un nivel moderadamente concentrado. El índice de concentración integral muestra un nivel de concentración bajo entre el 2006 al 2016 y un nivel moderadamente alta del 2017 al 2019. El índice de Hall y Tideman, muestra que las exportaciones por país de destino, son asimétricas. Finalmente, el coeficiente de Gini, muestra un nivel de desigualdad de muy fuerte a absoluta, por tanto, menor grado de competencia y mayor concentración.
STRUCTURAL FEATURE STUDY OF QUINOLINES DERIVATIVES WITH THERMODYNAMIC AND OTHER DESCRIPTORS: A QSAR APPROACH
Authors: Sharma Mukesh C. , Kohli Dharm V. ,   Department of Pharmaceutical Chemistry, School of Pharmacy, Devi Ahilya Vishwavidyalaya, Indore - 452 001,Madhya Pradesh, India
Published: December 2021

Quantitative structure activity relationship analysis was performed on a series of thirty-three quinoline derivatives to establish the structural features required for angiotensin II receptor activity. QSAR models were derived by stepwise multiple regression analysis employing the method of least squares, using quantum chemical, thermodynamic, electronic and steric descriptors. Model showed best predictability of activity with cross validated value (q2 ) =0.7485, coeffi cient of determination (r2 ) =0.8734 and standard error of estimate (s) = 0.2690. These guidelines may be used to develop new antihypertensive agents based on the quinoline analogues scaffold.
Cultural Jugaad in historic city transformations
Authors: JAIN SHIKHA
Published: December 2021

Several historic Indian cities have managed to retain the original urban character by using readily available materials, craftspeople, and cultural traditions despite increasing urban transformations. This notion of sustaining/preserving/continuing certain cultural elements and rituals has survived in various forms in the last two centuries. Historic cities showcase their living heritage at the global level and are exemplars for studying the strong linkages within traditions and indigenous modes of preservation. In such situations where stakeholders have centuries of association with the site, it is essential that professionals look beyond conventional solutions to better understand local perceptions and thereby establish the appropriateness of any urban level interventions.
This article draws from various urban conservation works carried out in the historic cities of Rajasthan over the last two decades. It illustrates the discoveries and challenges in understanding the traditional local mindset for working in such areas. The indigenous methods practiced in these historic living cores are often at variance with the norms and logics of Western city planning being followed in post-colonial India. Examples in the cities and settlements of Jaipur, Udaipur and Ajmer, feature in this article, highlighting the urgent need to understand the local community mindset and the Indian approach to solutions for rapidly modernizing historic urban centres.
¡TIC, TOC, TAC, AI!
Authors: Silleras-Aguilar Rocio
Published: December 2021

Se muestran diferentes obras y proyectos relacionados con el arte sonoro, la ciudad y el uso de tecnologías contemporáneas. Se divide en introducción, metodología, resultados y conclusiones. En los resultados primero se señalan conocidas obras que sirven de antecedentes a los siguientes proyectos mostrando la tradicional reunión de este género con lo tecnológico. Después se abordan las obras núcleo del texto avanzando desde internet y las conocidas Tecnologías de la Información y la Comunicación, a los Sistemas de Gestión Geográfica, las Apps, la Realidad Virtual, la Inteligencia Artificial, el Big Data y el Internet de las Cosas. Con todo ello se muestra que estas tecnologías ofrecen importantes posibilidades al arte sonoro, a la ciudad y al ciudadano, que este género sigue beneficiándose de las innovaciones tecnológicas y que ciertas temáticas y praxis como mapas, cartografías, audioguías, conciertos de ciudad o la urbe como instrumento continúan directa o indirectamente tomando hoy nuevos niveles de profundidad.
Obligaciones en el derecho civil panameño.
Authors: Trejos Navarro Miguel Ángel
Published: December 2021

Las normas relativas a las obligaciones, están contempladas en el Libro Cuarto: De las obligaciones en general y de los contratos, Título I, De Las Obligaciones, Capítulo I Disposiciones Generales, del Código Civil. Sin embargo, a través de ésta obra, se pretende que el lector tenga un conocimiento diáfano sobre las obligaciones en el derecho civil panameño, su aspecto etimológico, elementos, requisitos, clases y efectos jurídicos de cada relación obligacional.
ANALISIS PENERAPAN TOTAL QUALITY MANAGEMENT DALAM MENJAGA KUALITAS PRODUK AIR MINERAL DALAM KEMASAN MEREK SABINA PADA PT. SABINA TIRTA UTAMA SAMARINDA
Authors: Ramadani Filda
Published: December 2021

This researcher is motivated by analyzing the application of Total Quality Management well in a in industrial company in maintaining the quality of the products produced at PT. Sabina Tirta Utama, Through the application of TQM it is expected that the company can provide satisfaction to customers with the result produced. The formulation of the problem in this study is divided two into: (1) Analyzing the application of TQM  in maintaining the quality of the products produced at PT. Sabina Tirta Utama. (2) Whether the quality produced is in accordance with standard SNI. This study ams to find out how the application of TQM at PT. Sabina Tirta Utama and to find out the quality the products produced at PT. Sabina Tirta Utama.Intense competition will require companies to provide quality product to consumers. But the company’s concern is not limited to the quality of the product produced, but also on aspeets of the process, human resources (HR) and the environment. PT. Sabina Tirta Utama is a company that produces bottled mineral water in Samarinda and faces competition in a business that is growing increasingly. One of the methods carried out by PT. Sabina Tirta Utamain order to remain competitive by implementing Total Quality Management (TQM) . through an obsession toward quality, teamwork, continus system improvement, education and training, unity of purpose, and employee involvement. TQM is a system to achive the goals of an organization, one of which is maintaining product quality.Based on the result of interviews and observations, implementation of TQM in maintaining the quality of bottled mineral water products at PT. Sabina Still has reject products every month and teamwork is still careless in packing. Then As the result quality of bottled mineral waterproduced by PT. Sabina Tirta Utama has met the standard.
Study of Residential Attic Fire Mitigation Tactics and Exterior Fire Spread Hazards on Firefighter Safety Released
Authors:   UL Firefighter Safety Research Institute, Kerber Steve , Zevotek Robin
Published: December 2021

Attic fires pose many hazards for the fire service. When a fire occurs in an attic, it is common it goes unnoticed/reported until smoke or flames are visible from the outside of the structure. Because they take longer to detect, attic fires are more dangerous for firefighters and residents. In a fire situation, the attic ventilation system, which is designed to reduce moisture accumulation by drawing fresh air low from the eaves and exhausting moisture laden warm air near the peak, create an optimal fire growth and spread situation by supplying oxygen to the fire and exhausting hot gases. An estimated 10,000 residential attic fires are reported to U.S. fire departments each year and cause an estimated 30 civilian deaths, 125 civilian injuries and $477 million in property loss. The location of the attic creates several difficulties for the fire service. Firefighters must decide whether to fight the fire from inside the structure, from the outside or a combination of the two. This the decision is complicated by the constant hazard of ceiling collapse, which has the potential to rapidly deteriorate conditions in the living spaces. A piece of gypsum board may fall or be pulled from the ceiling making the relatively clear and cool conditions in the living space change very quickly endangering firefighters executing a search and rescue operation as part of their life safety mission. Further complicating the decision are the hazards associated with roof structure collapse, creating deadly conditions for firefighters operating on and under the roof. Structural collapse accounted for 180 firefighter deaths between 1979 and 2002 of which one-third occurred in residential structures . Many of these incidents involved a roof falling on firefighters or firefighters falling through the roof during firefighting operations on attic fires. The purpose of this study is to increase firefighter safety by providing the fire service with scientific knowledge on the dynamics of attic and exterior fires and the influence of coordinated fire mitigation tactics from full-scale fire testing in realistic residential structures.
Post-Traumatic Growth and Identity Construction in Covid-19 Messages Delivered to the People of Ghana by President Nana Akuffo Addo
Authors: Logogye Cynthia , Asafo-Duho Bernard , Afful Joseph B.A.
Published: December 2021

This work analyses post-traumatic growth in Covid-19 addresses delivered to the people of Ghana by President Nana Akuffo Addo. We draw on Post-Traumatic Growth Theory to explain how Akuffo Addo constructs a new identity for himself and the nation in order to navigate through the pandemic and forge an agenda of growth and prosperity for Ghana. The study employs a linguistic content analysis approach. The data consists of twenty different speeches from the president to the people. The speeches are first analysed and coded manually for the five main tenets of Post-Traumatic Growth (PTG) identified in the updates. Consequently, the linguistic markers that are used in reconstructing the Ghanaian identity in response to the pandemic are delineated and mapped to the goals of the president using the Linguistic Inquiry and Word Count 2015 (LIWC2015; Pennebaker et al., 2015) software; a vocabulary analysis tool. The analysis showed that there was a high prevalence of personal pronoun use, use of positive-emotion words, and cognitive-processing words. This confirms our hypothesis that linguistic markers can be used to detect PTG.
Inter-seasonal and inter-annual variations of mean and eddy atmospheric energetics over India
Authors: RAJEEVAN M. , RAY K. C. SINHA
Published: December 2021

Using daily upper air data from 1000 to 250 hPa of 20 stations during the period 1983-87 , the inter-sasonal and inter-annual variations of vertically intearated mean and eddy sensible and latent heat fluxes over India were examined. Vertically intearated meridional, sensible and latent fluxes (both mean and eddy fluxes) were generally southwards over the country except over northeastern parts. Large seasonal variation of mean sensible heat and latent heat flux values occur in association with the seasonal shifts of Hadley circulation. Maximum sensible heat fluxes were observed during pre-monsoon season over northern parts of India. Maximum latent heat fluxes were observed over central parts of India during monsoon season. Eddy fluxes were two order smaller than fluxes due to mean flow during all seasons. Maximum eddy fluxes occur in winter and are accomplished by large scale transient eddies. The eddy fluxes were practically negligible equatorwards of 15°N. Seasonal variations of fluxes over low latitudes were, however, different from the zonal pattern of annual cycle obtained by Oort (1971).

 

There were significant differences in meridional mean and eddy flux values between 1983 (a good monsoon year) and 1987 (a bad monsoon year). During 1983 (1987) the sensible heat flux values due to transient eddies were equatorwards (polewards) during the premonsoon as well as monsoon seasons. Similarly during monsoon season of 1983 larger northward mean sensible and latent heat fluxes were observed. In addition there were significant differences in vertical structure of zonal sensible and latent heat fluxes between 1983 and 1987 also.
Study of microclimatic conditions under different environments in wheat crop
Authors: BISHNOI O. P. , NIWAS RAM , SINGH SURINDER , SINGH MOHAN
Published: December 2021

An experiment was cunducted to study the wheal microclimate for higher grain yield production at research farm of Hisar 'Agriculture’ University (HAU). Profiles of temperature relative humidity, leaf temperature leaf wetness wind speed were measured in the crop canopies of different sowing treatments. Higher air temperatures and lower soil moisture were observed during reproductive phase under delayed sowings. Albedo varied between 0.19 and 0.23. Test weight decreased with delay in sowing time. Sowing of wheat between 31 October and 14 November produced statistically higher yield under favourable microclimate conditions at dirrerent phenophases.
Catastrophic floods in Kosi catchment during August 2008
Authors: KAUR SURINDER , KAUR ASHOK KUMAR
Published: December 2021

A breach in embankment of Kosi barrage was reported on 18 August, 2008 which has changed its course and resulted in a fresh channel around 120 km to the east of its previous channel. At the time of failure of the embankment, gushing out of about 2832 m3/s water with great impact breaking into the Mahendra Rajmarg and then taking a southward route into the old 1892-1921 abandoned course of the river, thus leaving the pre-breach C-loop and following a straight route to the Ganga. In this study meteorological aspect are analysed in details in relation to the catastrophic flood in the Kosi river catchment during August 2008. It seems that this catastrophic flood may not be solely due to rainfall in the catchment of Kosi. The breach is due to incorrect strategies of river management, human negligence and poor maintenance of afflux bund of the barrage (Sinha, 2009).
Rate of change of total column ozone and monsoon rainfall - A co-variation with the variable component of 10.7 cm solar flux during pre-monsoon period
Authors: MIDYA S. K. , SAHA U.
Published: December 2021

A critical analysis is done on the variation of the rate of change of Total Column Ozone (TCO) over Dum Dum (22° 38 N, 88° 26 E) and Total Monsoon Rainfall over Gangetic West Bengal with the variable component of 10.7 cm solar flux during different seasons for the period 1997- 2005. An anti-correlation is observed between the variable component with the rate of change of TCO during the pre-monsoon and monsoon period and significant positive correlations during the post-monsoon and winter seasons. Quite insignificant positive correlations are observed between the variable component and Total Monsoon Rainfall during different seasons for this period. A co-variation is observed with the increase in the variable component of 10.7 cm solar flux throughout the period of study only during the pre-monsoon season. Possible explanations are also presented.
Present operational long range forecasting system for southwest monsoon rainfall over India and its performance during 2010
Authors: PAI D.S. , SREEJITH O.P. , NARGUND S.G. , MUSALE MADHURI , TYAGI AJIT
Published: December 2021

At present, India Meteorological Department (IMD) issues various monthly and seasonal operational forecasts for the south-west monsoon season using models based on latest statistical techniques with useful skill. Operational models are reviewed regularly and improved through in house research activities. For the forecasting of the south-west monsoon season (June – September) rainfall over the country as a whole, a newly introduced statistical ensemble forecasting system is used. In addition, models have been developed for the forecast of the monsoon season rainfall over four geographical regions (NW India, NE India, Central India and South Peninsula) of the country and forecast for the rainfall over the second half of the monsoon season over the country as a whole. Models have also been developed for issuing operational forecast for the monthly rainfall for the months of July, August & September over the country as a whole. Operational forecasts issued by IMD for 2010 south-west monsoon rainfall have been discussed and verified. In addition, the experimental forecasts for the season rainfall over the country as a whole based on bothstatistical and dynamical models received from various climate research institutes within the country other than IMD arealso discussed.

The operational monthly and seasonal long range forecasts issued for the 2010 southwest monsoon season for the country as a whole were accurate. However, forecasts for the season rainfall over the 4 geographical regions (Northwest India, Central India, Northeast India and south Peninsular India) were not accurate as the forecast for South Peninsular India overestimated the actual rainfall and that for northeast India underestimated the actual rainfall. The experimental forecasts for the season rainfall over the country as whole from various climate research institutes within the country showed large variance (91 % - 112% of LPA).
Re-determination of normal dates of onset of southwest monsoon over India
Authors: TYAGI AJIT , MAZUMDAR A.B. , KHOLE MEDHA , GAONKAR S.B. , DEVI SUNITHA , RAMANATHAN RM.A.N.
Published: December 2021

The onset of southwest monsoon over various parts of the country can be early, timely or late as compared to a set of normal dates. Advance of monsoon could be either rapid or slow or sometimes there could be prolonged stagnation in the advance of monsoon. The timing of the monsoon onset is of vital importance to the agricultural sector and water replenishment. The climatological normal dates of onset which are being used at present are based on a much older data set (1901-1940) obtained from 149 stations. In this study, the climatology of the summer monsoon onset over different parts of India is derived using the mean pentad precipitation data of 569 stations spread all over the country, from 1971-2000. It has been observed that the revised dates of onset of monsoon over the Andaman Sea is 20 May, over Kerala is 1 June, over the northeastern parts is 5 June and the date of monsoon covering the entire country is 15 July (same as the existing dates). Considerable differences between the existing and the re-determined dates of onset are noticed over parts of south peninsula and western parts of central and adjoining northwest India where the re-determined dates are advanced by 1 to 3 days and delayed by 10 to 15 days respectively with respect to the existing normal dates of arrival of monsoon. The Standard Deviation of the re-determined normal dates ranges between 7 to 14 days with larger values over the northwest and west central parts and interior peninsular India.
Technical and operational characteristics of GPS radiosounding system in the upper air network of IMD
Authors: KUMAR GAJENDRA , MADAN RANJU , SAIKRISHNAN K.C. , KUNDU S.K. , JAIN P.K.
Published: December 2021

In recent years, the upper air radiosounding system based on Global Positioning System (GPS) is used as an effective method. GPS receiving device in a Radiosonde improves observation accuracy, allowing simplification of ground equipment. To get improved quality of upper air data, ten stations have been upgraded with new upper air systems based on GPS. This paper describes the upper air radiosounding system that adopts the GPS. After the introduction of GPS Radiosonde in the network at 10 places, data quality has improved substantially at these stations, which has been validated by National Centre for Medium Range Weather Forecasting (NCMRWF) and European Centre for Medium-Range Weather Forecasts (ECMWF). In all cases the quality change has been remarkable and as a result black list tag is removed by ECMWF for the Indian GPS stations.
Determinação da área de influência dos portos na logística de exportação da soja de Mato Grosso
Authors: Santos Anderson Dos , De Oliveira Andréa Leda Ramos , De Souza Marlon Fernandes
Published: December 2021

No Brasil, o transporte da lavoura até o porto representa uma parcela significativa no preço final das commodities agrícolas. De forma que o planejamento operacional da logística de exportação de grãos é fundamental para melhor a gestão dos custos. A participação do transporte intermodal na movimentação de cargas não está alinhada com a grande extensão territorial, o que impacta principalmente as regiões mais distantes dos portos marítimos. O objetivo do artigo é construir um modelo para determinação da área de influência dos portos brasileiros na logística da soja do estado de Mato Grosso destinada à exportação. O modelo identificou o porto de destino potencial, segundo os custos de transporte referenciados no espaço. A modelagem adotada pode ser também aplicada para avaliação da dinâmica logística de outros produtos agroindústrias. Destaca-se, que em todas as bacias logísticas delimitadas no estado de Mato grosso o escoamento da soja se dá prioritariamente por mais de um modal de transporte. Assim, os portos que influenciaram a logística no estado têm ligações ferroviárias ou hidroviárias, que são acessadas através de rodovias conectadas às regiões produtoras
Complex form of recording an elliptically polarized wave
Authors: V. Baklanov Evgeny
Published: December 2021

The field of an elliptically polarized wave is written down in the form of, convenient for the analysis of practical problems. The amplitude of the wave is expressed through four parameters: module, phase, angle of polarization plane, and ellipticity (a ratio of the ellipse axes).
Dependence of Particle Number on Density of States of an Aluminum Nanocluster
Authors: V. Tikhovskaya Natalya , N. Yugay Klimentiy
Published: December 2021

On basis of the Hubbard model density of states of the 2D square nanosystem by size of N × N aluminum atoms with N = 3÷30, and also density of states of the 2D aluminum square nanocluster, where one of the aluminum atom is changed by oxygen atom, is calculated. It is shown that the local density of state depends on the total number of atoms in the cluster, and also on the location of atom in a lattice and the atom sort in a lattice site.
One-Dimensional Periodic Potential in Quantum Mechanics
Authors: K. Ignatovich Vladimir
Published: December 2021

An elegant mathematical method is demonstrated with the help of simplest one-dimensional problems of quantum mechanics. This method is then applied to calculation of scattering on one-dimensional periodic systems. Generalization of the method for calculation of scattering in three dimensional periodic media and for spinor particles is pointed out.
The Equation of a State of Porous Mixture of Condensed Substances With Specific Heat the Dependence on the Temperature
Authors: Belkheeva Rumiya K.
Published: December 2021

The work is devoted to a problem of the description of behavior of multispecies mixtures of various powders under shock-wave loading. At the description of a mixture the model of interacting and interpenetrating continua, the principles of which construction are stated in the monographies of R. I. Nigmatulin, is used. The equilibrium condition is satisfied by conditions of equality of pressure, temperatures and mass velocity of species. The presence of gas inside pores is taken into account. The porous mixture of the several condensed substances in thermodynamic equilibrium is represented as single-phase continuous medium with the equation of a state in the Mie-Grüneisen form, which parameters expressed in terms of the corresponding parameters of the species. The numerical calculations of shock adiabats for porous substances and porous mixtures of the condensed species are performed with use of various models of the equation of a state of a mixture taking into account: a) only elastic pressure and elastic energy; b) both elastic, and thermal terms with constant specific heat of substance and Grüneisen oefficient; c) elastic and thermal terms with specific heat of substance the dependence on the temperature and variable Grüneisen coefficient. The results of computations are compared with experimental data.
Reliability Estimation of Random Discrete Images Reading With Application of Computer Analytical Calculation
Authors: Reznik Aleksandr L. , Efimov Vitaliy M. , Solovjev Aleksandr A.
Published: December 2021

One of the analytical relations describing reliability of random discrete images reading, realized by integrators with several threshold levels is proved.
Investigation of Influence of Spanwise Flow Nonuniformity on Controlled Disturbances Evolution in Supersonic Boundary Layer
Authors: Panina Aleksandra V. , Kosinov Aleksandr D. , Yermolaev Yuri G. , Semionov Nikolay V.
Published: December 2021

Results of experimental study of influence of spanwise flow nonuniformity on the wave train evolution in supersonic boundary layer at Mach number M = 2 are presented. Spanwise modulation of mean flow in a boundary layer was created by means of labels from scotch tape by thickness of 60 and 110 microns. Downstream evolution of controlled disturbances was investigated. The wave characteristics of traveling disturbances were obtained. It was found that the wave trains development depends from size and location of the roughness. It is shown that the wave packet evolution qualitatively has the similar development in both cases as for the smooth surfaces. At the same time, the spanwise modulation of the mean flow leads to the fundamental wave excitation with high inclination angle. The phase spectra indicate that excitation of these waves takes place in the center of the wave packet. It was shown, that mean flow modulation can lead to stabilization of disturbance development in supersonic boundary layer on a flat plate.
Calculation of Isentropics of Unloading and Double Compression of Continuous and Porous Materials by Simple Model With Function of Gryunayzena Depending on Temperature
Authors: Maevskiy Konstantin K.
Published: December 2021

The offered is in-process approved before by author model, taking into account dependence of coefficient of MieGrüneisen in an obvious kind only from a temperature. The calculations of double compression and unloading of both continuous and porous materials are produced. Comparing of results of calculations is conducted to the known experimental results of different authors for a copper, magnesium, aluminium and zinc. It is rotined that a calculation gives a good consent with an experiment both for continuous and for porous materials for the experimental information known to the author.
Stability and Three-Wave Interaction of Disturbances in a Supersonic Boundary Layer With Cooling
Authors: Gaponov Sergey A. , Terekhova Natalya M.
Published: December 2021

In linear and nonlinear approach (weakly nonlinear theory of stability) interaction of disturbances on a boundary layer of compressed gas is considered at surface cooling. The regimes of moderate (Max number М = 2) and high (М = 5.35) are considered at supersonic speeds. It is established that the surface cooling leads to considerable change of linear evolution of disturbances: the vortical disturbances of the first mode are stabilised, and the acoustic disturbances of the second mode are destabilised, the change degree is defined by the degree of change of the temperature factor. The nonlinear interaction in three-wave systems on high (М = 5.35) supersonic regimes on a boundary layer of compressed gas is carried out between waves of the different nature (acoustic and vortical) in a regime of a parametrical resonance. As a rating wave the flat acoustic wave which raises three-dimensional subharmonic components of the vortical modes. However, the similar interactions for vortical waves at М = 2 considerably weaken. It is possible to expect that surface cooling will lead to delay of a laminar regime at М = 2 and to accelerate of turbulization at М = 5.35
Nonlinear Stage of Alfvén Ion-Cyclotron Instability
Authors: Tsidulko Yuriy A. , Chernoshtanov Ivan S.
Published: December 2021

A model describing nonlinear saturated state of Alfvén ion-cyclotron instability is presented. Spirally symmetric exact solutions of Vlasov – Maxwell equations describing nonlinear Alfvén waves in collisionless plasmas are presented. On their basis the equation describing ion distribution function in non-linear equilibrium of a weak-collision plasma with the wave is obtained, taking into account an uniform fast ion injection, ion drag caused by electrons and neglecting ion angle scattering. A solution of this equation and relations of the wave parameters with the injection parameters are obtained analytically in the case of the infinitely narrow velocity distribution of the injected ions
Dielectric Properties of Copmosite Material Single Crystal KDP Matrix with Incorporated Anatase Nanocrystals in Terahertz Spectral Region
Authors: Enikeeva Violetta A. , Ozheredov Ilya A. , Shkurinov Aleksandr P. , Gayvoronsky V. Ya. , Pritula I. M.
Published: December 2021

Dielectric properties of new composite material single crystal KDP matrix with incorporated anatase nanocrystals were investigated by terahertz time-domain spectroscopy in a wide temperature range. It was shown that anatase nanoparticles significantly effect on dielectric properties of KDP crystals in THz range. It was obtained that dielectric permittivity drastically changes at the temperature below phase transition
Electrical Parameters of Si n-Mosfet THz-Detector: Matching with External Amplifier
Authors: Sizov Fedor F. , Golenkov Oleksandr G. , Reva Vladimir P. , But Dmitriy B.
Published: December 2021

The influence of the external load resistance on voltage and current sensitivities of Si n-MOSFET THz detectors at radiation frequency ν=142 GHz is investigated. The noise level in the frequency band, which is needed for real-time imaging is specified. Investigated were transistors with the gate widths and lengths within 1×1 µm 2 and 20×20 µm 2 . It is shown that internal resistance and external load resistance form the divider, the parameters of which are important for matching with read-out devices.
Laser Cooling Dynamics of Neutral Atoms in a Light Field with Nonuniform Polarization for Fixed Interaction Time
Authors: N. Prudnikov Oleg
Published: December 2021

Laser cooling dynamics of neutral atoms with a closed optical transition Jg → Je in light fields with nonuniform polarization formed by counterpropagating waves with linear, circular or elliptical polarization was considered. For the case of finite interaction time of atoms with light field both mechanisms of Doppler and Sub-Doppler laser cooling affected on atoms in ensemble having different velocities were taken into account. We get qualitative relations on a base of numerical analysis in a frame of quasiclassical treatment of laser cooling. These relations allow to define optimal parameters of cooling waves, i.e. polarization, detuning from atomic resonance and intensity of light waves for the most rapid and dip laser cooling from initially wide momentum distribution for finite interaction time of atoms with laser field
Influence of Turbulent Wake Upon Flow Separation on a Wing Model
Authors: V. Mikhaelis Mikhail , Yu. Zanin Boris , M. Katasonov Mikhail
Published: December 2021

The experimental investigations results of the flow over a straight wing model, placed at the subsonic wind tunnel are presented. The model was installed at high angle of attack so that the flow separation have place near the leading edge. An influence of external disturbances on such flow is studied. Free stream disturbances were generated by thin wire stretched in front of wing model. It is found that the separation can be completely removed when the wire wake achieve a wing upper surface
Laboratory and Computer Simulation of the Processes of Electrodynamical Transfer of Plasma Energy And Momentum in the Schemes of Space Propulsions with Magnetic Field
Authors: P. Zakharov Yuriy , V. Vshivkov Konstantin , Nakashima H. , L. Boyarintsev Eduard , V. Melekhov Aleksandr , G. Posukh Vitaliy
Published: December 2021

Considered electrodynamics and the efficiency of the transfer of energy and momentum from the expanding clouds of diamagnetic or laser fusion plasma to the system of coils, creating a strong, axisymmetric quasi-dipolar magnetic field. The results of experiments with a laser-produced plasma and 3D/PIC-calculations are described, in which was proved for the first time a real opportunity to implement the conversion efficiency of energy and momentum at the level of up to 3÷5 % and ≥ 50 %, respectively, in a scheme developed for the interplanetary spacecraft VISTA on the basis of thermonuclear plasma microexplosions
Impact of Air Microblowing Through a Permeable Wall on a Turbulent Boundary Layer
Authors: I. Kornilov Vladimir , V. Boiko Andrey , N. Popkov Anatoliy
Published: December 2021

The effectiveness of air microblowing through a permeable wall to reduce a turbulent skin friction over a flat plate in an incompressible flow is studied experimentally and theoretically. The mass flow rate of the blowing air per unit area was varied within Q = 0−0.05 kg 2 m s . A consistent decrease in local skin friction is observed to occur both at the increasing blowing air mass flow rate and along the permeable sample length. No appreciable influence of nondimensional microhole diameter on skin-friction reduction along the length of permeable sample is observed. The experimental results are compared with data of calculation that carried out within the boundary-layer equations
Influence of the Criteria of Similarity on the Exergy of the Gas Flow with Pulsed Energy Supply in The Expanding Channel of the Plane Shape
Authors: P. Zamuraev Vladimir , P. Kalinina Anna
Published: December 2021

The effect of influence of the parameters of similarity on the value of the exergy for supersonic flow in a channel of variable section with a pulsed-periodic energy supply is studied. The specific force acting on the walls of the expanding channel in dependence on the position, length of the zone of pulse-periodic energy supply, the Strouhal number and the Mach number flow is investigated. The following correlation is established: the specific force is increased and the exergy of the flow is used better with decreasing length of the zone of energy supply and with decreasing of distance between the zone and the place of beginning of the channel expansion. Raising the temperature at a single energy supply pulse may be considered as factor which increases specific force. It takes place at lower frequencies
Estimation of the Flow Parametrs in Hypersonic Wind Tunnels
Authors: V. Gromyko Yuriy , A. Maslov Anatoliy , A. Sidorenko Andrey , A. Polivanov Pavel , S. Tsyryulnikov Ivan
Published: December 2021

The paper describes the algorithm of the flow parameters calculation for hypersonic wind tunnels taking into account the real gas properties using air and carbon dioxide as a working gas. The results of the experimental measurements of the flow velocity at the contoured nozzle exit in the hypersonic wind tunnel IT-302M have been carried out for verification of the algorithm
Numerical Simulation of Thermal Fields Within Earth Surface Layers in the Region of South Urals
Authors: V. Gavrilov Vladimir
Published: December 2021

A mathematical model of thermal conductivity within the Earth near-surface layers has been studied in stationary mode relative to South Ural region. A purpose of the work is to identify cause of local heat flow density anomalies observed on the surface. Reconstruction of thermal field and heat production field is represented as numerical solution of the variational problems formulated according to boundary observation data
Exploitation of Wavelet Analysis for Investigation of Intermittency in Dynamic Nonlinear Systems
Authors: V. Afonin Vladimir , K. Boletskaya Tatyana
Published: December 2021

The research of intermittency for one-dimensional quadratic map was carried out both in the absence of external noise and in the presence of white Gaussian noise. The dependences of average laminar phase's length on deviation value of parameter from the critical value were calculated by means of wavelet analysis
Conciliación y solidaridad con el cambio horario
Authors: Montes Fernández Francisco José
Published: December 2021

En este trabajo analizamos la controvertida decisión de la unificación de los horarios en el marco de la UE. Una decisión sobre la que no se consiguen poner de acuerdo ni los países miembros en su conjunto, ni cada uno de ellos individualmente, puesto que atañe a la influencia de la luz solar sobre las actividades personales, académicas, comerciales y sociales en general.
Air Pollution and Trade: The Case of China
Authors:   China Center for Economic Research, National School of Development, Peking University,  Beijing 100871, China, Qin Jin , Kandilov Ivan T. ,   Department of Agricultural and Resource Economics, North Carolina State University,  Raleigh, NC 27695, USA, von Haefen Roger H. ,   Department of Agricultural and Resource Economics, North Carolina State University,  Raleigh, NC 27695, USA
Published: December 2021

We estimate the effects of trade on air pollution in China. To address endogeneity concerns, we use an instrumental variable strategy that treats the Great Recession as an exogenous shock that differentially affected China’s coastal provinces, which export a greater volume of manufacturing as they are closer to navigable waters. In our empirical analysis, we employ annual data on emissions of sulfur dioxide as well as smoke and dust at the province level from 2003 to 2015 to measure air pollution intensity (the ratio of air pollution to GDP), and we also use fine particulate matter (PM2.5) concentrations data derived from satellite imagery as a robustness check. We find that a decrease in trade intensity (the ratio of trade to GDP) by 10 percentage points (a negative trade shock similar to what occurred during the Great Recession) increases sulfur dioxide emissions intensity by about 38 percentage points. Emissions of the other two air pollutants grow by similar proportions.
PRACTICAL EXPERIENCE OF COLOR AND SOUND PSYCHOTHERAPY IN PATIENTS WITH BURNOUT SYNDROME AND ACUMINATE CONDYLOMAS
Authors: Чураков А.А.
Published: December 2021

Пациент «А», 33 г., диагноз: Синдром эмоционального выгорания (Z 73.0), Остроконечные кондиломы (А 63.0). Назначен курс цвето-звуко-психотерапии с последовательным прослушиванием нейроаудиомодулей, записанных психотерапевтом: «Приятное воспоминание, Полет птицы, С кем идти по жизни, Сад, Психосоматический сеанс, Птица телесного комфорта, Оздоровительный мост, Круговорот преобразований, Река желания, Трансформация» – которые проводили ежедневно, всего 10 сеансов. Применяли аппарат «Ритм-полет», для прослушивания аудиомодулей – MP3-плеер со стереонаушниками.
PSYCHOLOGICAL CHARACTERISTICS OF WOMEN WITH THIN ENDOMETRIUM: CLINICAL CASES
Authors: Филиппова Г.Г.
Published: December 2021

Психологическим фактором, ассоциированным с этим нарушением, может стать представление женщины о том, что опасной для ее физического здоровья является сама беременность. Причиной таких представлений является сформировавшееся в личной истории женщины убеждение в том, что ее организм не сможет выносить беременность. Случай первый: «Анорексички не беременеют».
СИНДРОМ ЭМОЦИОНАЛЬНОГО ВЫГОРАНИЯ У МЕДИЦИНСКИХ РАБОТНИКОВ НА УРОВНЕ ПОЛИКЛИНИКИ
Authors: Yugay N.V. , Kolyaeva M.V. , Novoselova S.V. , Sailaubekova A.K.
Published: December 2021

In recent years, the object of close attention of medicine and psychology has been the organization of the work of medical workers in connection with intense and often tense interpersonal communication, psychoemotional overloads leading to the onset of diseases, decreased ability to work and active period of life. The problem of professional stress, or «burnout syndrome» (BS) occupies an important place in the issue of the effective organization of work of such specialists [1]. The profession of a doctor requires physical health and psycho-emotional stability, because the daily work of medical workers is associated with the influence of complex stress factors, which leads to overload, rapid physiological and mental exhaustion.
CLINICAL CLASSICAL PSYCHOTHERAPY: ORIGINS AND MODERNITY
Authors: Махновская Л.В.
Published: December 2021

Клиническая классическая психотерапия (ККП) – это направление в психотерапии, которое отвечает тем же естественно-научным принципам, что и клиническая медицина Гиппократа, и клиническая психиатрия.
THE EFFECTIVENESS OF THE AUTHOR'S STYLE OF MEDIATION USING PSYCHOTHERAPEUTIC TECHNIQUES
Authors: Аксенфельд Р.Г.
Published: December 2021

Дополнение медиации психотерапевтическими техниками, равно как и дополнение компетенций психотерапевта компетенциями медиатора взаимно обогащают друг друга и создают уникального специалиста.
Évaluer numériquement les impacts du changement climatique au sein d’un bassin viticole pour co-construire des stratégies d’adaptation
Authors:   ABSys, Univ Montpellier, INRAE, CIRAD, Institut Agro, Ciheam-IAMM, Montpellier, France, Naulleau Audrey , Prévot Laurent ,   LISAH, Univ Montpellier, INRAE, IRD, Institut Agro, Montpellier, France, Gary Christian ,   ABSys, Univ Montpellier, INRAE, CIRAD, Institut Agro, Ciheam-IAMM, Montpellier, France, Hossard Laure ,   Innovation, Univ Montpellier, INRAE, CIRAD, Institut Agro, Montpellier, France
Published: December 2021

Les enjeux du changement climatique sont souvent présentés à l’échelle globale, alors que l’adaptation nécessite des connaissances sur ses impacts à une échelle locale. Cet article propose une démarche originale combinant modélisation numérique et démarche participative au sein d’un bassin viticole méditerranéen. Elle a pour objectifs (i) d’utiliser les projections climatiques avec des acteurs, (ii) de quantifier les impacts du changement climatique selon les systèmes de production, et (iii) d’engager des réflexions sur les adaptations à mettre en œuvre. Les résultats de simulation ont montré une vulnérabilité accrue des systèmes viticoles à haut rendement, comparés aux systèmes en AOP. Cependant, des incertitudes subsistent concernant l’occurrence des évènements extrêmes et l’effet de températures élevées. Les adaptations envisagées s’appuient sur ces résultats et sont enrichies des connaissances expertes. Mots clés : sécheresse, viticulture, Méditerranée, modèle de simulation, démarche participative