Dielectric properties of marsh vegetation

The present work is devoted to the measurement of the dielectric properties of mosses and lichens in the frequency range from 500 MHz to 18 GHz. Subjects of this research were three species of march vegetation – moss (Dicranum polysetum Michx), groundcedar (Diphasiastrum complanatum (L.) Holub) and lichen (Cladonia stellaris). Samples of vegetation were collected in Tomsk region, Western Siberia, Russia. Complex dielectric permittivity was measured in coaxial section by Agilent Technologies vector network analyzer E8363B. Green samples was measured for some moisture contents from 100% to 3–5 % during a natural drying. The measurements were performed at room temperature, which remained within 21 ÷ 23 ° C. The frequency dependence of the dielectric constant for the three species of marsh vegetation differ markedly. Different parts of the complex permittivity dependency on moisture were fitted by line for all frequency points. Two break point were observed corresponding to the transition of water in the vegetation in various phase states. The complex permittivity spectra of water in the vegetation allow determining the most likely corresponding dielectric model of water in the vegetation by the method of hypothesis testing. It is the Debye’s model. Parameters of Debye’s model were obtained by numerical methods for all of three states of water. This enables to calculate the dielectric constant of water at any frequency range from 500 MHz to 18 GHz and to find the parameters of the dielectric model of the vegetation

Правовые вопросы выделения новых видов национальной безопасности

The subject of the article is the typology of national security, and controversial issues of the selection.The purpose of the article is to identify causes of a large number of security’s forms both in theory and in practice, also to analyze acts in this sphere. The methodology of the article includes analysis, synthesis, formal-legal and comparative-legal methods. The main results of the research. The author focuses on the problem of types of national security. The author investigates the national security and methodological, theoretical and legal aspects of the classification of national security’s forms. The reason for the diversity of types of national security should also be recognized as the lack of a clear classification of them. Author investigates the mechanism for detaching forms of national security in acts of the Russian Federation in the field of security and suggests that new forms of nation security (moral security and culture security) should appear in base document of strategic planning of the national security. Moral security includes cultural, ideological, informational, psychological, scientific, educational, and religious security. Cultural security in its most general form is the stable existence of culture, the protection of this sphere from internal and external threats, for example, such as the emasculation of spiritual and moral values and globalization. Conclusions. The identification of new types of national security is an objective process due to the very versatility of such a phenomenon as national security. At the same time, it should be recognized that the sphere of spirit and morality in the context of spiritual security does not belong to the legal science, but rather to the field of philosophy and religion. In this regard, their inclusion, even as an adjective, in the text of the strategic planning document raises doubts, so the use of the phrase "moral security" in legal acts in the near future, in our opinion, can hardly be expected.Осмысляется проблема выделения новых видов национальной безопасности в нормативных правовых актах России, проанализирована Стратегия национальной безопасности Российской Федерации 2015 г. Сделана попытка объяснить многообразие видов безопасности, существующих в современной научной литературе. Подчёркивается необходимость классификации видов национальной безопасности в Стратегии национальной безопасности. Перечислены основные существующие в науке классификации видов национальной безопасности. Сделан вывод о недопустимости отождествлять вид безопасности и вид национальной безопасности. Делается акцент на возможности появления новых видов национальной безопасности Российской Феде-рации, не предусмотренных документами стратегического планирования. Предлагается выделение в качестве самостоятельных видов национальной безопасности Российской Федерации культурной и духовной безопасности

Factors predictive of failure to thrive in infants discharged from the skin to kin room

Introducción: el fallo de medro es identificado en niños como crecimiento significativamente menor que sus semejantes. Objetivo: determinar los factores de riesgo predictores del fallo de medro en lactantes bajo peso al nacer egresados de la Sala de Piel a Piel durante el primer año de vida. Métodos: se realizó un estudio observacional analítico en la Sala de Piel a Piel del Hospital Ginecoobstétrico “Mariana Grajales” de Santa Clara durante los años 2014 y 2015. Se trabajó con la  población de recién nacidos con peso al nacer menor de 2 000 gramos atendidos en esa sala y seguidos por consulta hasta el año de vida (120 pacientes). Resultados: presentaron fallo de medro 54 pacientes, para un 45% del total de casos estudiados. Predominó significativamente el peso al nacer entre 1 500 y 2 000 gramos en el 48,1% de los niños con desmedro. La lactancia materna resultó ser un factor que se asoció significativamente al fallo de medro. Conclusiones: el peso y la talla para la edad en el primer trimestre fueron los factores predictores del fallo de medro en los lactantes estudiados.Introduction: failure to thrive is identified in children with significantly lower growth than their peers. Objective: to determine the predictive risk factors of failure to thrive in low birth weight infants discharged from the skin to skin care during the first year of life. Methods: an analytical observational study was conducted in the skin to skin care of the “Mariana Grajales” Obstetrics and Gynecological Hospital, in Santa Clara, during 2014 and 2015. The population of newborns with birth weight less than 2 000 grams that was attended in that room and follow up consultation until one year of life (120 patients), was studied. Results: Fifty-four patients with failure to thrive, 45% of the total cases were studied. Birth weight between 1 500 and 2 000 grams predominated significantly in 48.1% of children with reduction. Breastfeeding turned out to be a factor that was significantly associated with failure to thrive. Conclusions: weight and height according to age in the first trimester were the predictive factors of failure to thrive in the infants were examined

Perinatal risk factors in neonatal sepsis. Three-year study

Introducción: las Unidades de Cuidados Neonatales son áreas de atención dinámica que reciben pacientes con disímiles factores de riesgo que predisponen a la sepsis. Objetivo: determinar la incidencia de los factores de riesgo perinatales en la aparición de sepsis de inicio precoz en los recién nacidos atendidos en el Servicio de Neonatología del Hospital Universitario Ginecoobstétrico “Mariana Grajales” de Villa Clara durante los años 2015 y 2017. Métodos: se realizó un estudio analítico de grupos comparativos con elementos de enfoque mixto. La población estudio estuvo conformada por 312 neonatos con factores de riesgo. Resultados: predominaron los recién nacidos a término, masculinos y con peso mayor o igual a 2 500 gramos; sin embargo, la prematuridad y el bajo peso tuvieron asociación causal con la sepsis de aparición temprana. Los factores de riesgo estratificados en pacientes con sepsis neonatal temprana fueron, por orden de frecuencia: el tiempo de rotura de membrana mayor de 18 horas, la fiebre intraparto y la corioamnionitis materna. De los 55 neonatos con dos o más factores de riesgo 10 presentaron aislamientos, los gérmenes Gram positivos ocuparon un papel primordial en la génesis de la sepsis de inicio precoz (Enterococcus sp. y Staphylococcus coagulasa negativo). Conclusiones: el tiempo de rotura de membrana mayor de 18 horas fue el factor de riesgo más frecuente y predominaron los gérmenes Enterococcus sp. y Staphylococcus coagulasa negativo.Introduction: Neonatal Care Units are dynamic care areas that receive patients with different risk factors that predispose to sepsis. Objective: to determine the incidence of perinatal risk factors in the emergence of early-onset sepsis in newborns treated at the Neonatology Service of the Mariana Grajales Obstetrics and Gynecology Provincial University Hospital, in Villa Clara from 2015 to 2017. Methods: an analytical study of comparative groups with elements of mixed approach, was carried out. The study population consisted of 312 neonates with risk factors. Results: term newborns, male and weighing more than or equal to 2,500 grams, prevailed; however, prematurity and low weight had a causal association with early onset-sepsis. Risk factors stratified in patients with early neonatal sepsis were, according to frequency order: rupture of membrane prolonged more than 18 hours, intrapartum fever and maternal chorioamnionitis. Of the 55 neonates with two or more risk factors, 10 were isolated, Gram-positive germs played a key role in the genesis of early-onset sepsis (Enterococcus sp and Staphylococcus coagulase negative). Conclusions: rupture of membrane prolonged more than 18 hours was the most frequent risk factor and Enterococcus sp and coagulase negative Staphylococcus were the predominant germs

Intermixing-Driven Surface and Bulk Ferromagnetism in the Quantum Anomalous Hall Candidate MnBi6Te10

The recent realizations of the quantum anomalous Hall effect (QAHE) in MnBi2Te4 and MnBi4Te7 benchmark the (MnBi2Te4)(Bi2Te3)n family as a promising hotbed for further QAHE improvements. The family owes its potential to its ferromagnetically (FM) ordered MnBi2Te4 septuple layers (SLs). However, the QAHE realization is complicated in MnBi2Te4 and MnBi4Te7 due to the substantial antiferromagnetic (AFM) coupling between the SLs. An FM state, advantageous for the QAHE, can be stabilized by interlacing the SLs with an increasing number n of Bi2Te3 quintuple layers (QLs). However, the mechanisms driving the FM state and the number of necessary QLs are not understood, and the surface magnetism remains obscure. Here, robust FM properties in MnBi6Te10 (n = 2) with Tc ≈ 12 K are demonstrated and their origin is established in the Mn/Bi intermixing phenomenon by a combined experimental and theoretical study. The measurements reveal a magnetically intact surface with a large magnetic moment, and with FM properties similar to the bulk. This investigation thus consolidates the MnBi6Te10 system as perspective for the QAHE at elevated temperatures

The legal issues of the substantiation of new types of national security

The subject of the article is the typology of national security, and controversial issues of the selection.The purpose of the article is to identify causes of a large number of security’s forms both in theory and in practice, also to analyze acts in this sphere. The methodology of the article includes analysis, synthesis, formal-legal and comparative-legal methods. The main results of the research. The author focuses on the problem of types of national security. The author investigates the national security and methodological, theoretical and legal aspects of the classification of national security’s forms. The reason for the diversity of types of national security should also be recognized as the lack of a clear classification of them. Author investigates the mechanism for detaching forms of national security in acts of the Russian Federation in the field of security and suggests that new forms of nation security (moral security and culture security) should appear in base document of strategic planning of the national security. Moral security includes cultural, ideological, informational, psychological, scientific, educational, and religious security. Cultural security in its most general form is the stable existence of culture, the protection of this sphere from internal and external threats, for example, such as the emasculation of spiritual and moral values and globalization. Conclusions. The identification of new types of national security is an objective process due to the very versatility of such a phenomenon as national security. At the same time, it should be recognized that the sphere of spirit and morality in the context of spiritual security does not belong to the legal science, but rather to the field of philosophy and religion. In this regard, their inclusion, even as an adjective, in the text of the strategic planning document raises doubts, so the use of the phrase "moral security" in legal acts in the near future, in our opinion, can hardly be expected

Short-Term Mobile Network Traffic Forecasting Using Seasonal ARIMA and Holt-Winters Models

Fifth-generation (5G) networks require efficient radio resource management (RRM) which should dynamically adapt to the current network load and user needs. Monitoring and forecasting network performance requirements and metrics helps with this task. One of the parameters that highly influences radio resource management is the profile of user traffic generated by various 5G applications. Forecasting such mobile network profiles helps with numerous RRM tasks such as network slicing and load balancing. In this paper, we analyze a dataset from a mobile network operator in Portugal that contains information about volumes of traffic in download and upload directions in one-hour time slots. We apply two statistical models for forecasting download and upload traffic profiles, namely, seasonal autoregressive integrated moving average (SARIMA) and Holt-Winters models. We demonstrate that both models are suitable for forecasting mobile network traffic. Nevertheless, the SARIMA model is more appropriate for download traffic (e.g., MAPE [mean absolute percentage error] of 11.2% vs. 15% for Holt-Winters), while the Holt-Winters model is better suited for upload traffic (e.g., MAPE of 4.17% vs. 9.9% for SARIMA and Holt-Winters, respectively)

Dielectric properties of marsh vegetation

The present work is devoted to the measurement of the dielectric properties of mosses and lichens in the frequency range from 500 MHz to 18 GHz. Subjects of this research were three species of march vegetation – moss (Dicranum polysetum Michx), groundcedar (Diphasiastrum complanatum (L.) Holub) and lichen (Cladonia stellaris). Samples of vegetation were collected in Tomsk region, Western Siberia, Russia. Complex dielectric permittivity was measured in coaxial section by Agilent Technologies vector network analyzer E8363B. Green samples was measured for some moisture contents from 100% to 3–5 % during a natural drying. The measurements were performed at room temperature, which remained within 21 ÷ 23 ° C. The frequency dependence of the dielectric constant for the three species of marsh vegetation differ markedly. Different parts of the complex permittivity dependency on moisture were fitted by line for all frequency points. Two break point were observed corresponding to the transition of water in the vegetation in various phase states. The complex permittivity spectra of water in the vegetation allow determining the most likely corresponding dielectric model of water in the vegetation by the method of hypothesis testing. It is the Debye’s model. Parameters of Debye’s model were obtained by numerical methods for all of three states of water. This enables to calculate the dielectric constant of water at any frequency range from 500 MHz to 18 GHz and to find the parameters of the dielectric model of the vegetation

Modeling of the management of the microwave grain drying process

The article discusses the VisSim program, which allows simulating microwave grain drying process. Its capabilities and methods of development are shown, the structure of a mathematical model for management of the drying process and individual blocks is provided. It is noted that offered modeling of the grain drying process makes it possible to evaluate it as a technological process, as well as to show the possibility of its optimization. It should be noted that this method is environmentally friendly and less energy intensive than others