bluuebunny/crossref_metadata_2025 huggingface dataset:
POTENTIAL IODINE COMPOUNDS IN THE BREST-OD-300 REACTOR LEAD COOLANT
Authors: Дубенков Н.Е. , Васюхно В.П. , Хачересов Г.А.
Published: August 2024

Одним из наиболее важных элементов при обосновании радиационной безопасности реактора БРЕСТ-ОД-300 является йод, поступающий в теплоноситель из топлива. Его последующий массоперенос зависит от физико-химических параметров соединения, в котором он находится. Для определения возможных соединений йода в свинце необходимо проведение теоретических и экспериментальных исследований как для системы «свинец – йод», так и для многокомпонентной системы с учетом других элементов, которые могут накапливаться в свинцовом теплоносителе при работе реакторной установки на мощности. Представлены результаты экспериментов по исследованию процессов массопереноса йода в свинце в зависимости от: ▪диапазона температур (420–680 °С); ▪наличия окислов свинца, продуктов коррозии, продуктов активации и деления (в том числе цезия). Выбранные параметры эксперимента позволяют оценить коэффициенты распределения йода в свинце в условиях нормальной эксплуатации реакторной установки БРЕСТ-ОД-300, а также при авариях, связанных с повышением температуры теплоносителя.

One of the most important components in the BREST-OD-300 reactor radiation safety justification is iodine that enters the coolant from the fuel. Further mass transport of the iodine depends on the physicochemical parameters of the compound that contains it.Identifying the potential iodine compounds in lead requires theoretical and experimental studies both for the lead-iodine system and for the multicomponent system in consideration for other components that can accumulate in the lead coolant during the reactor facility power operation. Presented the results of experiments to investigate the processes of iodine mass transport in lead coolant depending on: ▪the temperature range (420 to 680 °С); ▪the presence of lead oxides, corrosion products, and activation and fission products (including cesium). The selected experiment parameters make it possible to estimate the ratios of the iodine distribution in lead under normal operating conditions of the BREST-OD-300 reactor facility, as well as during accidents caused by an increase in the coolant temperature.
APPLICATION OF VARIOUS CRITERIA FOR THE EFFECTIVENESS OF PHYSICAL PROTECTION OF NUCLEAR FACILITIES
Authors: Гареев М.Д. , Егоров А.А. , Зырянов Д.К. , Смирнов В.В.
Published: August 2024

Приводится анализ выполнения требований федеральных норм и правил в области использования атомной энергии к физической защите ядерных объектов по вопросу оценки эффективности системы физической защиты ядерных объектов. Показано, что основным критерием при принятии решения о том, что система физической защиты ядерного объекта способна выполнить свое целевое предназначение по предотвращению несанкционированных действий нарушителей, является критерий сравнения оценочного значения показателя эффективности с требуемым минимальным допустимым значением (критерий применимости). Показаны ограничения использования методов обоснования минимального допустимого значения показателя эффективности системы физической защиты, основанные на анализе рисков. Приводится описание возможностей использования формальных и экспертных методов для принятия регулирующих решений при выборе вариантов построения систем физической защиты ядерных объектов. На примере шкалы Харрингтона обсуждается возможность использования вербально-числовых шкал при экспертных процедурах принятия решения о назначении и обосновании минимального допустимого значения показателя эффективности физической защиты. Рассмотрены возможные варианты использования альтернативного критерия, основанного не на решении задачи сравнения оценочного значения показателя эффективности с требуемым минимально допустимым значением, а на решении задачи максимизации эффективности (критерий оптимальности), а также возможные варианты логического вывода при принятии регулирующих решений.

The article provides analysis of the fulfillment of the requirements of Federal rules and regulations on the physical protection of nuclear facilities related to evaluating the effectiveness of the physical protection systems of nuclear facilities. It is shown that the main criteria when deciding that the system of physical protection of a nuclear facility is capable of fulfilling its intended purpose to prevent unauthorized actions of violators is the criteria of comparing the estimated value of the effectiveness indicator with the required minimum permissible value (the criteria of applicability). The article describes the possibilities of using expert methods for making regulatory decisions when choosing options for designing of physical protection systems of nuclear facilities. The possible options for using an alternative criteria based not on solving the problem of comparing the estimated value of the effectiveness indicator with the required minimum permissible value, but on solving the problem of maximizing effectiveness (optimality criteria) for making regulatory decisions are considered.
CONFORMING BETWEEN THE SIZE OF THE BUFFER ZONE AND AIRBORNE DISCHARGE LIMITS
Authors: Курындин А.В. , Шаповалов А.С. , Орлов М.Ю. , Иванов Е.А. , Строганов А.А. , Тимофеев Н.Б.
Published: August 2024

В статье рассмотрена связь между определением границ и размеров санитарно-защитной зоны вокруг атомной станции и установлением нормативов предельно допустимых выбросов радиоактивных веществ в атмосферный воздух. Проанализированы установленные в нормативных документах критерии, исходя из соблюдения которых должны определяться границы санитарно-защитной зоны, а также критерии, используемые при установлении нормативов предельно допустимых выбросов. Показано, что установление нормативов и границ санитарно-защитной зоны основывается на использовании одних и тех же дозовых ограничений, что позволяет, при условии отсутствия негативных радиационных последствий эксплуатации станции в прошлом, обоснованно ограничить санитарно-защитную зону территорией промплощадки.

The article shows the relationship between criteria for setting the boundaries of the buffer zone around a nuclear power plant and airborne discharge limits of radioactive substances. The criteria established in regulatory documents are analyzed, based on compliance with which the boundaries of the buffer zone should be determined, as well as the criteria used in the establishment of discharge limits. It is shown that the establishment of airborne discharge limits and the boundaries of the buffer zone is based on the use of the same dose restrictions, which makes it possible, provided there are no negative radiation consequences of the operation of the nuclear power plant in the past, to reasonably limit the buffer zone to the site territory.
Ultralow-field nuclear magnetic resonance for direct nondestructive observation of electrolyte composition in batteries
Authors: Fabricant Anne M. , Picazo-Frutos Román , Teleanu Florin , Rees Gregory J. , House Robert A. , Bruce Peter G. , Blanchard John , Eills James , Sheberstov Kirill , Budker Dmitry , Barskiy Danila A. , Jerschow Alexej
Published: August 2024

Rechargeable batteries represent a key transformative technology for electric vehicles, portable electronics, and renewable energy. Despite enormous developments in battery research, there are few nondestructive diagnostic techniques compatible with realistic commercial cell enclosures. Many battery failures result from the loss or chemical degradation of electrolyte. Here we show measurements through battery enclosures that allow quantification of electrolyte amount, composition, and potentially degradation. This study employs instrumentation and techniques developed in the context of zero-to-ultralow-field nuclear magnetic resonance (ZULF NMR), with optical atomic magnetometers as the detection elements. In contrast to conventional NMR methodology, the reduced background magnetic fields employed here make even potentially thick stacks of battery housing and electrodes transparent to the lower-frequency electromagnetic fields involved. Both the solvent and lithium-salt components of the electrolyte signature can be quantified, as the results described herein demonstrate.
Site-Selective C(sp3)–H Oxidation of Aliphatic Substrates Devoid of Functional Groups
Authors: Lu Yiheng , Knezevic Melina , Prescimone Alessandro , Goldfuss Bernd , Tiefenbacher Konrad
Published: August 2024

Although tremendous progress in the field of C(sp3)–H oxidation has been achieved over the last decades, the selective oxidation of non-activated positions on hydrocarbon skeletons is still highly challenging. It usually requires the presence of a suitable functional group in proximity to the desired oxidation site. Here we present a novel approach for catalyst-directed C–H oxidation that relies on substrate binding via the solvophobic effect in fluorinated alcohols, and thus is independent of functional groups on the substrate. Enabled by the novel supramolecular catalyst Mn(mcp)-RS2, the preferential oxidation at the fifth position on aliphatic substrates was observed.
Reactivity of Acceptor-Acceptor Diazo-Pyrazolones with Allyl Thioethers under Visible Light: Access to Homoallyl and Bis-Homoallyl Sulfides, Spiropyrazolones-Pesticide Analogues and Photo-Flow Synthesis
Authors: Bankar Onkar S. , Pal Chhabi , Laha Debasish , Sabale Abhijeet S. , Bhat Dr. Ramakrishna G.
Published: August 2024

Pyrazolone framework has been greatly explored for various applications owing to their presence in many bioactive compounds. The novel reactivity of less selective and more reactive acceptor-acceptor kind of diazo pyrazolone (DIPOL) has been explored under visible light for the first time. We have successfully demonstrated the reaction of DIPOL and different allyl thioethers under blue light to construct a wide variety of products including pesticidal analogue exclusively in excellent chemo-selectivities in good to excellent yields. Moreover, the possible side products emanating from ketene were not observed. This protocol works smoothly in environmentally benign solvent under inert free condition. The practicality of the protocol has been extended to photo-flow reaction and also the reaction works smoothly under the direct exposure of sunlight.
DC24: A New Density Coherence Functional for Multiconfiguration Density-Coherence Functional Theory
Authors: Zhang Dayou , Shu Yinan , Truhlar Donald G.
Published: August 2024

In this study, we explored several alternative functional forms to construct more accurate and more physical density coherence functionals for multiconfiguration density-coherence functional theory. Each functional is parameterized against the same database as used in our previous work. The best density coherence functional, which is called DC24, has a more physical interpretation, and – as a side benefit – it also has a mean unsigned error of 1.72 kcal/mol, which is a 10% improvement as compared to the previous functional. The article also contains a new definition of the unpaired electron density, which may be useful in other contexts as well.
Homologous Lanthanide Nickel Silicides Based on Oligomeric Triangular Blocks: Crystal Structures and Physical Properties
Authors: Grilli Davide , Smetana Volodymyr , Shtender Vitalii , Ahmed Sheikh Jamil , Pani Marcella , Manfrinetti Pietro , Mudring Anja-Verena
Published: August 2024

Isostructural series of homologous silicides Lnn(n+1)+xNin(n+5)+ySi(n+1)(n+2)-z (n = 4–6) have been obtained with Ln = Ce, Pr and Gd at 1000 C. All of them crystallize in the hexagonal space group type P63/m, exhibit short unit cell c parameters and variable but strongly correlating a parameters (n = 4: a = 20.795–20.826(9), c = 3.994–4.041(1) Å; n = 5: a = 24.693–24.726(4), c = 4.000–4.066(1) Å, and n = 6: a = 28.716–28.760(1), c = 3.9983–4.0734(3) Å). The crystal structures are represented by fused oligomeric SrPtSb -type blocks – La-centered Ni6Si6 hexagonal prisms forming equilateral domains with the edge size equal to n. The polyanionic triangular motifs and the cationic components alternate along all crystallographic axes. The newly discovered compounds Lnn(n+1)+xNin(n+5)+ySi(n+1)(n+2)-z represent asymmetric higher-n Ni-rich compositional and structural mirrors to the rare reported Ln-rich representatives Ln(n+1)(n+2)Nin(n-1)+2Sin(n+1). Unit cell parameter trends and magnetic measurements suggest the intermediate valence character of the Ce atoms.
VEGETABLE SEED PRODUCTION AND MARKETING IN KAVREPALACHOWK DISTRICT, NEPAL: AN ECONOMIC ANALYSIS
Authors: Neupane Nabina , Acharya Nischal , GC Arun
Published: August 2024

Vegetable seeds, in Nepal’s context, are regarded as a high-value and low-volume commodity that, despite having a great scope for lucrative production, still proves to be elusive for farmers. In this regard, a study was carried out in Kavrepalanchowk district of Nepal to assess the economics of vegetable seed production and determine the economic viability of seed production enterprises in increasing farm income and improving socio-economic status. Face-to-face interviews using a semi-structured survey questionnaire were used to collect the primary data. For the interview, a sampling frame of all seed producers in the district was prepared, out of which sixty seed producers were selected using a simple random sampling technique. Further, ten traders were also surveyed with a semi-structured questionnaire. The highest benefit-cost ratio was recorded in tomato (3.36), followed by kidney bean (1.55) and cress (1.34). Only one marketing channel was reported at the study site, with farmers selling their produce to a cooperative, which eventually sells the seeds to a seed company. According to the study, kidney bean seed producers had the highest share of consumer rupees (72%), followed by tomato seed producers (50%) and cress seed producers (16.67%). Limited irrigation facilities, the incidence of disease and pests, and limited market information have been reported as the major hindrances in the study area. Thus, the findings show the potential of vegetable seed production to be a financially lucrative enterprise. The enhancement of market linkage and better collaboration between various value chain actors and concerned stakeholders can help overcome existing problems and create a better foundation to improve the seed production enterprise.
AN EMPIRICAL AND ECONOMIC ANALYSIS OF CASSAVA PRODUCTIVITY IN SELECTED AREAS OF SOUTHERN SIERRA LEONE
Authors: Mohamed Massaquoi Saffa , Mande Zhu , Johnson Adolphus
Published: August 2024

This study examined the productivity and economic analyses of the cassava production in three communities—Nyallay, Sammamie, and Sindeh sections in Bo districts, Southern Sierra Leone. The crop is processed into garri, fufu, akara, and other foods. Cassava can also be used to make flour, pellets, and chips for animal consumption, as well as biofuel and particle boards The data was gathered using a questionnaire and interview schedule that were both well organized. Descriptive statistics, financial techniques, and a multiple regression model were all employed in the data analysis. The main data came from a sample of 300 cassava growers from three regions. The collected data were evaluated using econometric regression analysis. The findings indicated that, the net farm income was Le 214,361 and the net return on investment was almost Le 258, 375. The findings of a regression analysis showed that the number of cassava cuttings, hired labor, farm size, farming experience, and age statistically substantially influenced the output of cassava in the research region. It is indicated that the availability of improved cassava cuttings in the area and farmers’ access to subsidized inputs like fertilizer. In the study it was suggested that farmers be prodded to invest in the cultivation of cassava because of its economic worth and profitability. Cassava growers should be encouraged to obtain instruction on correct agronomic practices and input usage, and inputs should be made available and at reasonable costs, especially improved types of cassava cuttings, this will increase productivity.
Características físicas e químicas do topo do solo em áreas de plantações de eucalyptus spp. E Mata Atlântica no Campo das Vertentes – MG
Authors: Pinto Winkler José , Batista de Negreiros André
Published: August 2024

As intensas ações antrópicas causam impactos negativos nos ecossistemas. Dentre as atividades desenvolvidas, inclui-se a monocultura, que sob a ótica da geoecologia, age como um fator de redução da biodiversidade. Neste contexto, as análises relacionadas aos processos responsáveis sobre o funcionamento dos ecossistemas, surgem como alternativa para avaliar os níveis de perturbações ambientais. Haja visto a grande importância dos processos que ocorrem durante a constante interação entre solo e serapilheira, para os ecossistemas, este estudo pretendeu mensurar a qualidade do solo em áreas que apresentam distintas coberturas vegetais, visando mensurar a influência da serapilheira depositadas nestas áreas, sobre a qualidade do topo do solo (0 – 40 cm). Para tal, foram realizadas análises relacionadas às características químicas e físicas do topo dos solos das áreas amostrais. As coletas das amostras foram realizadas em três áreas de plantações de eucaliptais e uma área controle composta por vegetação heterogênea, localizada em área de Floresta Estacional Semidecidual. O topo dos solos das áreas amostrais são ácidos, distróficos com valores para soma de bases trocáveis (SB) abaixo de 1,2 cmolc/dm³, e o índice de saturação de bases (V) menor que 25%. Os solos da área controle, apresentaram alta saturação de alumínio (m > 50%), característica de solos álicos. Enquanto os solos das áreas de eucaliptais apresentaram baixa saturação em alumínio (m < 50%), característica de solos ácricos. Os solos amostrados apresentaram baixa Capacidade de Troca Catiônica Efetiva, CTC (t). Os solos da área controle apresentaram menor capacidade de retenção de P, demonstrando alto valor para a taxa de fósforo remanescente no solo (P-rem). Quanto às caraterísticas físicas do topo do solo, as amostras da área controle apresentaram textura arenosa, e das áreas eucaliptais, textura argilosa. A área controle apresentou predominância de agregados dos solos maiores que 2 mm (Teste t- de Student, p < 0,05). No geral, os atributos químicos e físicos do topo dos solos encontrados neste estudo não se diferenciaram muito entre as áreas estudadas, tal fato pode ser explicado pela profundidade de solo amostrada, na qual a influência da serapilheira já não seja tão grande como nos primeiros 5-10 centímetros dos solos.
Impressões sobre os rumos atuais da geografia política e da geopolítica (dialogando com Iná Elias de Castro)
Authors: Messias da Costa Wanderley
Published: August 2024

Ensaio em resposta ao artigo publicado no volume anterior da Revista Espaço e Geografia.
O veraneio em Conceição do Araguaia (PA): relações afetivas e o cancelamento do evento na pandemia
Authors: Brito Parente Ester , Maia da Silva Marta , Lima Gomes Dérick
Published: August 2024

O veraneio é um evento que possui considerável relevância cultural, política e econômica para o município de Conceição do Araguaia, localizado no estado do Pará. No entanto, em 2020 e 2021, sua realização foi suspensa devido à pandemia. O objetivo deste trabalho é analisar o vínculo da população conceicionense com o veraneio, à luz do conceito geográfico de lugar, e as múltiplas percepções relativas ao seu cancelamento. Durante a pesquisa, realizamos levantamento bibliográfico e documental pertinente à temática, trabalhos de campo (mediante observações sistemáticas, registros fotográficos e entrevistas focalizadas) e um formulário online. Concluímos que o veraneio representa um espaço-tempo repleto de (re)encontros, relações sociais e afetivas, razão pela qual, além de ser uma fonte de renda essencial a muitas famílias, têm um caráter simbólico e cultural marcante para os sujeitos de Conceição do Araguaia, questões que foram impactadas em razão de seu cancelamento.
Remanescentes de Floresta Ombrófila Densa Primária com Ocotea catharinensis na Ilha de Santa Catarina
Authors: Góes Talita Laura , Ferretti Orlando Ednei
Published: August 2024

A Floresta Ombrófila Densa ocupa 21.800 hectares, ou 51,6% da área total da Ilha de Santa Catarina (ISC), no município de Florianópolis. Contudo, há poucas áreas com remanescentes da floresta primária. A fragmentação da vegetação na Ilha, levou espécies como Ocotea catharinensis Mez, provavelmente das mais comuns antes da chegada dos colonizadores, correspondendo a 1/3 das espécies arbóreas da floresta no Estado, quase a extinção. Até o fim da década de 1970 cerca de 80% das planícies e morrarias da Ilha estavam devastadas. Ao longo da sua história de uso e ocupação do espaço geográfico, além da agricultura, principal causa do desmatamento, também houve extração de espécies para a lenha e arbóreas de valor econômico. O objetivo principal desse trabalho é a identificação e mapeamento de fragmentos de floresta primária na ISC, em especial com Ocotea catharinensis Mez, espécie bioindicadora. Através de caminhamento em campo ao longo de 300 km, foram mapeadas e identificadas árvores adultas com mais de 20 cm de DAP e  cerca de 20 metros de altura. Como resultado, foram mapeados 72,8 hectares de remanescentes de mata primária na Ilha de Santa Catarina para a região sul e central da Ilha, com 415 indivíduos de Ocotea catharinensis Mez e também outras espécies. No total foram observadas 26 famílias e 33 espécies arbóreas de estágio climácico. A importância desses remanescentes primários se dá como corredores de biodiversidade para conexão dos fragmentos de norte, centro e sul da Ilha. Mantendo essa vegetação conectada diminui-se o risco da erosão genética, em especial com espécies da floresta primária, pois essas são as matrizes para a regeneração e sucessão florestal.
Brasileiros e brasileiras na Suíça: sonhos, frustrações e realizações
Authors: Baeckert Liliana , Cunha Victoria , Cruz Eduardo , Falcão Roberto
Published: August 2024

Com uma das taxas de migração mais altas do continente europeu, ultrapassando inclusive outras nações do Ocidente, como Áustria, Reino Unido e Países Baixos, a Suíça vem despontando como um cenário de especial interesse para estudos migratórios desde a segunda metade da década de 1990. O presente artigo visa, portanto, mapear o perfil sociodemográfico dos migrantes brasileiros na Suíça, evidenciando suas motivações para migrar e dificuldades de permanência no país de acolhimento. Para tanto, faz-se um levantamento de dados primários com 617 respondentes, por meio de um questionário veiculado em grupos de Facebook, Linkedin e Whatsapp. Os principais achados incluem a predominância feminina do conjunto amostral, com faixa etária média acima de 31 anos e alta escolaridade, sendo o matrimônio a principal estratégia de migração desse público. No que concerne à população masculina, a estratégia mais adotada foi a obtenção de visto de trabalho ainda em solo brasileiro. Ambos os sexos encontram dificuldades relativas ao idioma e à cultura, sendo que a intenção da maioria é permanecer no país por tempo indeterminado. Ressaltam-se como contribuições o avanço da teoria acerca do processo de feminização no fenômeno migratório e das barreiras envolvendo a eleição por esse destino europeu.
Análise e mapeamento das áreas de conflito de uso do solo de áreas de preservação permanente da bacia hidrográfica do Ribeirão Cafezal – PR.
Authors: Henrique Kurunczi Ferreira William , Zaupa Montini Victória , Vilanova Grizio-Orita Edinéia
Published: August 2024

As Bacias Hidrográficas se caracterizam como unidades de grande utilidade no estudo e no planejamento ambiental devido ao seu caráter abrangente, envolvendo as interrelações físicas e biológicas a partir de uma abordagem geossistêmica. Desta maneira, este trabalho teve por objetivo realizar o mapeamento de áreas de conflito de uso do solo nas Áreas de Preservação Permanente (APPs) da Bacia Hidrográfica do Ribeirão Cafezal, localizada na porção Norte Central do Estado do Paraná, situada entre os municípios de Cambé, Rolândia e Londrina. Foi analisada a dinâmica e a evolução do uso do solo entre os anos 2000 e 2020 da bacia, tendo como base o uso dos dados divulgados pela plataforma MapBiomas. Neste sentido, foi verificado, no ano de 2020, um aumento das áreas de APPs entendidas como regulares, verificando que o uso do solo são compatíveis com cobertura florestal ou corpos d’água, porém, um total de 35,63% destas áreas de APPs ainda são classificadas como áreas irregulares, entende-se que esta pesquisa poderá contribuir com subsídios para a fiscalização e a atuação de órgãos ambientais na correta gestão das áreas de APPs da área de estudo.
The Relationship Between Knowledge and Host Behavior With Pulmonary Tuberculosis Cases in the Productive Age in Rantau Alai District, Ogan Ilir Regency
Authors: Hanifah Arindi Dinda , Razak Rahmatillah , Sunarsih Elvi , Budiastuti Anggun
Published: August 2024

Pulmonary tuberculosis is an infectious disease that is a health problem in the world. In Indonesia, most cases of tuberculosis attack the productive age. Cases of pulmonary tuberculosis in Rantau Alai District in 2022 amounted to 380 cases, with the number of positive cases as many as 29 cases resulting in disability in the lungs and extrapulmonary organs and even death. The purpose of this study was to analyze the relationship between knowledge and behavior of the host with the incidence of pulmonary tuberculosis at productive age in Rantau Alai Subdistrict, Ogan Ilir Regency. This study used a case-control design with 108 respondents selected by simple random sampling. Then, the data analysis test was carried out, namely the chi-square test and multiple logistic regression test. The results showed that there was a significant relationship between knowledge (p-value<0.001), smoking history (p-value>0.001), household contact (p-value<0.001), the habit of drying mattresses (p-value<0.001) and the habit of opening windows every morning (p-value<0.001) against pulmonary tuberculosis. The results of multivariate analysis showed that the variable of house contact (p-value 0.001) was the most dominant variable associated with pulmonary tuberculosis (OR= 15.059, 95% CI: 3.093-73.317). The conclusion of this study is that poor knowledge and behavior of the host can increase the risk of pulmonary tuberculosis. Suggestions for the community are expected to follow extension activities on an ongoing basis and implement clean and healthy living behaviors to prevent the proliferation of pulmonary tuberculosis bacteria.
Application Analysis of Doctor-Nurse Cooperation Follow-up Model Based on the Internet Platform in Continuation Care of Patients after Uro-oncology Surgery
Authors: Guo Yan , Zhu Hanjing , You Sijie , Cao Yeli , Ma Liya , Yuan Xia
Published: August 2024

Objective: To explore the application effect of a doctor-nurse cooperation follow-up model based on an Internet platform in the continuation of care for patients after uro-oncology surgery. Methods: A convenient sampling method was used to select patients with urinary system tumors who underwent surgery in the Department of Urology in Grade III A general hospital in Shanghai from May to August 2022. Patients who underwent surgery from May to June 2022 were assigned to the control group, and those who underwent surgery from July to August 2022 were assigned to the experimental group. The control group received routine post-discharge nursing health education and telephone follow-up. On the basis of routine discharge guidance, the experimental group implemented the intervention method based on the Internet platform in continuation care. The levels of self-management efficacy, satisfaction, and incidence of unplanned readmission were compared one month after discharge between the two groups. Results: One month after discharge, the self-management efficacy of the experimental group (90.15 ± 7.92) was significantly higher than that of the control group (79.10 ± 7.84), and the patient satisfaction score (97.83 ± 2.32) was significantly higher than that of the control group (90.23 ± 2.58), with statistical significance (P < 0.05). Additionally, the incidence of unplanned readmissions within one month after discharge in the experimental group (1.59%) was slightly lower than that in the control group (4.84%). Conclusion: The doctor-nurse cooperation follow-up model based on the Internet platform in continuation care can significantly improve the self-management efficiency of patients after discharge and enhance patient satisfaction, providing a new approach for discharge follow-up of urological tumor patients after surgery.
Research on Multiple Access Algorithms for Wireless Network
Authors: Yao Kaifeng
Published: August 2024

Nodes in the communication network mainly depend on the Media Access Control (MAC) layer protocol design. To ensure the MAC protocol achieves high throughput, low latency, and high service quality, this paper designed a “centralized-distribution” system MAC protocol combined with a slot allocation algorithm. This allows it to quickly adapt to the topology changes in the network and the overall network frame structure. For the centralized time slot allocation, since the system’s frame structure changes across the entire network, the root node must gather information from other nodes. This ensures that the root node can collect the latest topology information when the network topology changes and subsequently adjust the frame structure of the whole network for the distributed time slot allocation. The simulation results show that the adaptive time-division multiple access mechanism can quickly adapt to changes in topology and the network’s frame structure. It enables adaptive changes in node transmission times, ensures the rapid transmission and circulation of large-capacity data between nodes, and improves transmission efficiency.
Application of Power Electronics Converters in Renewable Energy
Authors: Cheng Tao
Published: August 2024

Against the backdrop of global energy shortages and increasingly severe environmental pollution, renewable energy is gradually becoming a significant direction for future energy development. Power electronics converters, as the core technology for energy conversion and control, play a crucial role in enhancing the efficiency and stability of renewable energy systems. This paper explores the basic principles and functions of power electronics converters and their specific applications in photovoltaic power generation, wind power generation, and energy storage systems. Additionally, it analyzes the current innovations in high-efficiency energy conversion, multilevel conversion technology, and the application of new materials and devices. By studying these technologies, the aim is to promote the widespread application of power electronics converters in renewable energy systems and provide theoretical and technical support for achieving sustainable energy development.
ДЕФИНИЦИЯ ПОНЯТИЯ «ЦИФРОВИЗАЦИЯ СЕЛЬСКОГО ХОЗЯЙСТВА»
Authors: ЗУБРЕНКОВА ОЛЬГА АНАТОЛЬЕВНА , ФЕДОТОВА ОЛЬГА ИВАНОВНА , МИТИН СЕРГЕЙ ГЕРАСИМОВИЧ , ШЛЫКОВА АНАСТАСИЯ ОЛЕГОВНА
Published: August 2024

Статья посвящена дефиниции понятия «цифровизация сельского хозяйства». В настоящее время на наш взгляд понятие «цифровизация сельского хозяйства» раскрыто не в полной мере. Для достижения положительных результатов в изучении и применении «цифровизации» в сельском хозяйстве, считаем, что необходимо улучшить это понятие. Цель исследования заключается в исследовании понятия «цифровизация сельского хозяйства» с целью его улучшения и совершенствования. Для достижения цели исследования поставлены следующие задачи: изучение теоретических основ цифровизации, изучение понятия «цифровизация», изучение ключевых факторов, способствующих становлению понятия цифровизации в РФ, изучение существующих подходов к описанию сущности цифровизации сельского хозяйства и изучение понятия «цифровизация сельского хозяйства». В статье раскрыты и проанализированы такие понятия как «цифровизация», «цифровизация сельского хозяйства», изучены существующие подходы к описанию сущности цифровизации сельского хозяйства для уточнения формулировки понятия «цифровизация сельского хозяйства». Цифровизация сельского хозяйства - это процесс внедрения цифровых технологий в сельское хозяйство, с целью увеличения эффективности производства и повышения качества сельскохозяйственной продукции. В данном исследовании применен монографический, экономический метод, метод сравнения.
ПОСТРОЕНИЕ СИСТЕМЫ УПРАВЛЕНИЯ УЧРЕЖДЕНИЙ СОЦИАЛЬНОГО ОБСЛУЖИВАНИЯ НАСЕЛЕНИЯ
Authors: ЗУБЕНКО ЕКАТЕРИНА НИКОЛАЕВНА , ЧУРИКОВА ДАРЬЯ АНДРЕЕВНА , КОРПАЧЕВ ВЯЧЕСЛАВ НИКОЛАЕВИЧ
Published: August 2024

Управление организациями сферы социальных услуг представляет собой сложную и не до конца решенную проблему в отечественной науке и практике. Необходимость применения современных достижений науки и техники подчеркивает значимость данной проблемы. Управление организациями сферы социальных услуг представляет собой, прежде всего, процесс планирования, организации, координации и контроля деятельности организаций, которые предоставляют социальные услуги. Основная цель управления организациями сферы социальных услуг заключается в обеспечении доступности, качества и эффективности предоставляемых услуг для граждан, которые нуждаются в поддержке и помощи. Это может включать услуги жилищного обеспечения, здравоохранения, образования, трудоустройства, социального обслуживания и других видов социальной поддержки. Таким образом, дополнение теоретических и методологических основ развития социальной сферы, разработка предложений по оптимизации системы управления организациями сферы социальных услуг в условиях современной рыночной экономики является приоритетной задачей.
СОЦИОКУЛЬТУРНЫЕ ФАКТОРЫ ФОРМИРОВАНИЯ ПОТРЕБИТЕЛЬСКОГО ПОВЕДЕНИЯ НАСЕЛЕНИЯ В НАЦИОНАЛЬНЫХ РЕГИОНАХ ЮГА РОССИИ
Authors: АБАСОВА ХАБСАТ УЗЕРОВНА
Published: August 2024

Цель исследования. Выявление социокультурных факторов, оказывающих воздействие на формирование особенностей и изменение потребительского поведения населения региона, на примере национальных республик Северного Кавказа. Исследование основывается на социологическом методе научного познания. Аналитическую базу исследования составили результаты социологического опроса среди взрослого населения национальных регионов Юга России и некоторых других субъектов РФ. В социологическом опросе приняли участие мужчины и женщины разных возрастных групп. Наибольший удельный вес респондентов приходится на возрастную группу 18-20 лет (28%). От общего количества опрошенных 32% составили мужчины, 68% - женщины. В общей численности опрошенных 74,4% респондентов – жители Республики Дагестан. Период проведения опроса – 2023 г. Выборочная совокупность – 424 человека. Для анализа и обработки полученных данных использовалась программа IBM SPSS Statistics 27.0.1 IF026. Результаты. Выявлены особенности и параметры, характеризующие воздействие региональных факторов на потребительское поведение населения, оказывающих дифференцированное влияние на модели экономического поведения в различных регионах и этносоциальных группах. В ходе исследования в какой-то степени была подтверждена гипотеза о трансформации потребительского поведения в зависимости от социокультурных характеристик населения. Полученные результаты свидетельствуют о том, что потребительское и экономическое поведение населения национальных республик Юга России определяется, в том числе и под влиянием социокультурных факторов, которые выражаются в системе традиционных ценностей и норм, характерных для данного региона.
ОСНОВНЫЕ НАПРАВЛЕНИЯ ОБЕСПЕЧЕНИЯ УСТОЙЧИВОГО СОЦИАЛЬНО-ЭКОНОМИЧЕСКОГО РАЗВИТИЯ СКФО
Authors: ОСМАНОВА АМИНАТ МАГОМЕДХАНОВНА
Published: August 2024

Несогласованность гуманитарных аспектов преобладающей энергетической и климатической политики в регионах Северо-Кавказского федерального округа России можно рассматривать как серьезное препятствие на пути к достижению устойчивого развития. Поскольку эта политика напрямую связана с продовольственной, здравоохранительной и другой экономической политикой, перестройка этих аспектов по-прежнему остается политическим пробелом. Этот политический пробел может иметь решающее значение с точки зрения устойчивого развития и других территорий с низкими доходами, и устранение этого политического пробела является основной целью научных исследований. Цель исследования - обоснование основных направлений обеспечения устойчивого социально-экономического развития регионов Северо-Кавказского федерального округа России. Теоретическую и методологическую основу составили фундаментальные труды отечественных и зарубежных учёных по проблемам устойчивого социально-экономического развития региона. Результаты. В ходе работы анализируется влияние возобновляемых и не возобновляемых источников энергии и природных ресурсов на устойчивое развитие регионов Северного Кавказа. Результаты показывают, что возобновляемые источники энергии и природные ресурсы оказывают положительное, но незначительное влияние на устойчивое развитие, в то время как ископаемое топливо существенно и отрицательно влияет на устойчивое развитие. Результаты исследования используются для разработки политических рекомендаций по достижению устойчивого развития в регионе. Выводы. Регионы Северо-Кавказского федерального округа России сталкиваются с трудностями в достижении устойчивого развития из-за несогласованности энергетической и климатической политики с аспектами человеческого развития. Необходимо стремиться устранить этот политический пробел путем включения аспектов человеческого развития в энергетическую и климатическую политику субъектов федерального округа.
Bidirectional cavapulmonary anastomosis as a stage of haemodynamic correction of left heart hypoplasia syndrome
Authors: Maistriuk G. V. , Dziuryi I. V. , Truba Y. P. , Lazoryshynets V. V.
Published: August 2024

Objective. To retrospectively analyse the perioperative characteristics of patients with left heart hypoplasia syndrome, to assess immediate and long-term results after bi-directional cavapulmonary anastomosis.
Materials and methods. During the period from 2010 to 2023, the Amosov National Institute of Cardiovascular Surgery of the National Academy of Medical Sciences of Ukraine performed a bidirectional cavapulmonary anastomosis in 8 patients with left heart hypoplasia syndrome: 7 boys and 1 girl. The median age of patients at the time of the intervention was 8 months. The main research methods were transthoracic echocardiography and cardiac catheterisation.
Results. No patient died in the early postoperative period. In 2 patients, before the bidirectional cavapulmonary anastomosis, there was high pressure in the pulmonary artery system due to the presence of hemodynamically significant collateral vessels that were endovascularly closed before the intervention. All patients underwent the second stage of haemodynamic correction in the form of a bidirectional cavapulmonary anastomosis. The average duration of the operation was 480 minutes, and the artificial circulation was 117 minutes. The median transpulmonary gradient at the intraoperative stage was 6 mm Hg, in the postoperative period - 7 mm Hg. The pressure in the superior vena cava system and blood saturation after the second stage of hemodynamic correction were 15 mm Hg and 84%, respectively. Sympathomimetic support lasted 48 hours, and the total length of stay in the intensive care unit was 168 hours. The third stage of haemodynamic correction was performed in 4 patients.
Conclusions.  Bidirectional cavapulmonary anastomosis in patients with left heart hypoplasia syndrome provides better pulmonary circulation, which contributes to increased blood saturation, eliminates volume overload of the right ventricle, reducing venous return to it, and delays the development of heart failure. It is important to perform each stage of haemodynamic correction in a timely manner, which affects early and long-term results, the severity of preoperative and postoperative haemodynamics, interstage survival rates and postoperative complications.
Kanikovskyi Oleg Yevgenyevich (to the 60th anniversary)
Authors: Board Editorial
Published: August 2024

Kanikovskyi Oleg Yevgenyevich (to the 60th anniversary)
DNA barcoding of commercially important marine fish species Hipposcarus harid from the central Red Sea, Saudi Arabia
Authors: Al Solami Lafi
Published: August 2024

In this study, the collected fish species were identified based on morphological observations and then evaluated by DNA barcoding. The COI gene has been recognized as a biological marker for fish species identification and the objective of this study is to analyze the variable region of the COI gene in subunit I. The mitochondrial cytochrome (COI) oxidase subunit I gene was analyzed as a suitable molecular maker for the identification of three specimens of the fish species Hipposcarus harid, widely distributed in the Red Sea. The COI gene sequences in the variable region revealed variations among the fish species. The COI gene sequences in the variable region were similar to the variable region of Hipposcarus harid collected from the Northern Red Sea and all three were named: H. harid H13, H. harid H2c, and H. harid H12. The identification of the fish species collected from the Red Sea in Saudi Arabia would help ichthyologists improve the management, conservation and monitoring of economically important long-nose parrotfish species in Saudi Arabia.
Species distribution models of Türkiye’s endemic genus: Seminemacheilus Banarescu & Nalbant, 1995 (Cypriniformes: Nemacheilidae)
Authors: Sungur Sevil
Published: August 2024

Climate change is having a major impact on species distribution and habitat loss, especially for species with restricted ranges. The genus Seminemacheilus is endemic to Türkiye and includes six species. This study investigated the current distribution of the genus Seminemacheilus and its possible distribution in 2050 and 2070 using the Wallace platform, a Maxent modeling method. Simulations of future projections indicated that bioclimatically suitable habitats of Seminemacheilus spp. will be limited in 2050 and nearly extinct in 2070. The model is primarily affected by temperature and precipitation, which are directly associated with the phenomenon of global warming. It has been established that conservation strategies must be developed to protect the species of the genus and avoid habitat deterioration.
Dynamics of taxation indicators of artificial pine stands on the reclaimed ash dump
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Korchagin I.E.
Published: August 2024

The aim of the research was to assess changes in the main taxation indicators of artificial pine stands growing on the reclaimed ash dump No 1 of Reftinskaya GRES (SDPS- State District Power Station). The study area belongs to the district of preforest-steppe pine-birch forests of the Trans-Ural plain province of the West Siberian lowland forest region. The studies were carried out on sample plots (PTP). The dynamics of forest stand inventory indicators for the period from 2011 to 2021 on six sample plots is analyzed. It has been established that pine plantations on the ash dump are characterized by bonitets from Ia to II. The stock of forest stands of 31 years of age reaches 290 m3/ha, with an average annual growth of 9.4 m3/ha. The maximum increase in height for the period from 2011 to 2021 is characterized by stands of 1999 and 2005 years of planting, in diameter of 1992 and 2005, and in terms of stock of 1992 and 1999 years of planting. The minimum value of growth in terms of stock is typical for PTP‑3 (1997 planting year) and is explained by strong intraspecific struggle with high stand density.
Application of a Novel Symmetric Benzophenone Derivative Schiff Base in Lyotropic Media and Spectroscopic Properties
Authors: Suhta A. , Meral S. , Alaman Ağar A. , Sütay B. , Vazquez-Lopez E.M. , Çoruh U.
Published: August 2024

The structural and spectroscopic properties of a new -ONNO- type Schiff base were analyzed. The compound 6,6'-((1E,1'E)-(hexane-1,6-diylbis(azaneylylidene))bis(phenylmethaneylylidene))bis(3-(octyloxy)phenol) was synthesized by condensing a diamine and a ketone in tetrahydrofuran, resulting in a high yield. The symmetric Schiff base, in which both amine ends converted to the imine structure, was examined using XRD, NMR, IR and UV-vis. spectroscopies. The theoretical calculations were done successfully using DFT approach at 6-31G(d, p) basis set to investigate the properties of the title compound that cannot be studied by experimental analyses. NBO analysis was used to study hyper-conjugative interactions involving the overlap of sigma (σ) or pi (π) electrons and electron density between adjacent atoms and to determine the stabilization energy. The DFT theoretical parameters and XRD experimental parameters were compared and showed good agreement. 2D fingerprint and 3D Hirshfeld surface plots were obtained to determine the intermolecular interactions. The features of the optimized structure were investigated by several analyses such: NBO, Frontier molecular orbitals, ESP, MEP and ECT which cannot be studied by theoretical methods. The UV-vis. spectroscopy was used to investigate the interaction of the synthesized benzophenone Schiff base compound with lyotropic media. The synthesized compound is significantly compatible with the prepared lyotropic medium due to its highly symmetrical and amphiphilic structure.
Sovereign Asset and Liability Management (SALM) and Efficient Debt Management: An Empirical Study for Jordan
Authors: Ibrahim Haslindar , Aljaloudi Mohammed
Published: August 2024

This research is about the effect of Sovereign Asset and Liability Management (SALM) on efficient debt management in Jordan using quarterly data from 2005 to 2023. The paper applies time series analysis methods, such as the Autoregressive Distributed Lag (ARDL) and Nonlinear Autoregressive Distributed Lag (NARDL) models to study the links between SALM components (cash reserves, foreign reserves, equity in state-owned enterprises, future revenues, government debt, fiscal expenditures and contingent liabilities) and Jordan's debt-to-GDP ratio. The results show that these variables have a significant impact on the short-term and long-term efficiency of debt management. Besides, the NARDL model shows that there are asymmetric impacts of equity in SOEs, future revenues and fiscal expenditures which means that these variables have different effects when they increase or decrease. The policy recommendations are to keep the debt levels sustainable, to accumulate foreign reserves, to manage contingent liabilities effectively and promote coordination among the relevant institutions for fiscal sustainability and economic growth.