bluuebunny/crossref_metadata_2025 huggingface dataset:
Algorithm for forming a fan of identical beams in digital antenna arrays
Authors: Bashly P. N. , Mishchenko S. E. , Shatsky V. V. , Litvinov A. V. , Shelkoplyasov S. A.
Published: October 2023

Digital antenna arrays allow you to implement multipath reception using a grid or a fan of beams. For multiple beams forming the linear phasing method is usually used. The disadvantage of this method is that the directional characteristics of each fan beam depend on the orientation direction of the maximum of the radiation pattern. When the beam deviates from the direction of the normal to the aperture, the following effects occur: expansion of the beam, a decrease in the directivity coefficient and a decrease in the norm of the radiation pattern. This feature of antennas in radar leads to a decrease in the accuracy of measurements of the angular coordinates of targets during electronic scanning. In this regard, it seems urgent to develop new methods and algorithms that ensure the formation of a grid of beams of a digital antenna array consisting of beams with the same directional characteristics. The goal of the article is to form a fan of identical receiving beams of a digital antenna array in a given angular sector. The problem of constructing a fan of beams in a given angular sector with close values of the directivity coefficient and the same beam width has been solved. The proposed algorithms increase the speed of spatial viewing by 20–25%, stabilize the level of the intersection of the beams in the entire sector of electronic scanning and reduce the side lobe level by 23 dB in the central part of the beam grid and by 5 dB for the extreme beams.
Detection range of airborne objects by broadband active-passive radar systems
Authors: Bogoslovsky A. V. , Razinkov S. N. , Razinkova O. E.
Published: October 2023

In the interests of searching and observing aerial objects with low levels of background contrast of secondary electromagnetic radiation and signals of on-board radio-electronic means, it is required to use active-passive radar systems with identification of the belonging of unmasking signs identified by heterogeneous information sensors to one object. When constructing procedures for joint processing of information signals, the issues of determining the range of active and passive search (observation) channels become important when implementing measures to reduce the reflective properties and structural and energy secrecy of the operation of electronic equipment of aircraft. To establish the boundaries of the area controlled by the active-passive radar system, it is necessary to use energy equations for transmitting and receiving broadband signals with a priori indefinite arrival time in a radio channel with scattering and a direct radio channel. The equations are found by integrating spectral equations for inharmonic wave processes propagating in free space in the band of cyclic operating frequencies when approximating the partial directional coefficients of antennas and partial effective scattering areas of objects by power functions of cyclic frequencies. The goal of the article is identification of patterns of influence of object reflective properties and characteristics of airborne radio sources on the range of active-passive radar systems. Using energy equations of transmission-reception of non-harmonic wave processes in a radio channel with scattering and direct radio channel, analytical expressions for determining probabilistic characteristics of signal detection with a priori indefinite arrival time, the possibilities of detecting air objects by broadband active-passive radar systems have been investigated. Ratios of ranges of detection of objects have been found based on the results of receiving and processing of information signals of radar stations and intrinsic radiation of airborne radio-electronic equipment. The revealed regularities of the influence of the object reflective properties and the characteristics of airborne radio sources on the range of radar stations and passive radar complexes allow us to make a rational choice of parameters of active-passive radar system designs in order to achieve the required indicators of the effectiveness of air space control. The energy equations of transmission and reception of broadband signals in radio channels form the basis for the development of proposals to ensure the covert use of aircraft.
Development and research of syntactic foams for antenna devices parts manufacture
Authors: Bakina L. I. , Golubev A. N. , Zefirov V. L. , Khasyanova L. A. , Shipulina V. A.
Published: October 2023

Foam plastics are always widely used in antenna-feeder systems due to the low values of the dielectric constant ε and the tangent of the dielectric loss angle tgδ. Structural elements of such antennas are usually made by gluing blanks cut from expanded polystyrene plates or from filling polyurethane foam. However, these methods turned out to be low-tech due to the high labor intensity of the process, the inhomogeneity of the dielectric properties of structures and the unsatisfactory quality of the painted surface due to the low chemical resistance of these materials to solvents of paint and varnish materials. Syntactic foams, which are a special type of gas-filled polymers, in which hollow spherical filler particles are distributed, in comparison with traditional foams, have increased mechanical strength, electrical strength, resistance to climatic factors, less density difference and better surface quality. It is the advantages of syntactic foams listed above that make them relevant materials in the manufacture of structural elements of antennas. The purpose of the work is to study the possibility of obtaining products from low-density syntactic foam by combining an expandable polymer matrix with a filler in the form of hollow glass microspheres. The limits of filling the polymer matrix by the filler have been established. The material dielectric characteristics (dielectric constant ε and the tangent of the dielectric loss angle tgδ) and strength (compression stress at 10% deformation) characteristics have been investigated. The resistance of the material to the influence of climatic factors has been investigated. The technology of manufacturing the product by the flooding method has been developed. Also the effect of paint and varnish coatings on surface quality and dielectric characteristics of foams of low density has been investigated. The obtained results can be used to create structural elements of antennas.
Radio emission sources determination during radio monitoring by estimating the directions of arrival of signals using adaptive antenna array
Authors: Zhiryakov V. D. , Perfilov O. Yu. , Fedorov P. N.
Published: October 2023

Radio monitoring of radio emission sources (RES) requires their localization. The problem of localization of RES in the presence of inaccurate a priori information about the direction of the arrival of electromagnetic waves is relevant, despite the large number of works devoted to this topic. The aim of the article is to increase the efficiency of the radio monitoring complex. The paper considers options for using adaptive spatial filtering of signals to obtain information about the direction of signal arrival. A variant of practical application of direct estimation of amplitudes and phases of received signals to determine signals and interference has been proposed.
Ray phase verification at the Cassegrain antenna aperture
Authors: Zheksenov M. A. , Petrov A. S.
Published: October 2023

Large sections in textbooks and monographs on antenna technology, as well as publications in numerous periodicals are devoted to Cassegrain two-mirror antennas. In them it is possible to find various ratios for calculating the dimensions of the structural elements of the antenna system, which, at the same time, need preliminary verification of their accuracy by checking of the ray phase at the exit of the paraboloid aperture. In addition, it is necessary to develop a procedure for assessing the sensitivity of the system to the phase mismatch of the output rays at the antenna aperture caused by the deviation of the actual dimensions of the structural elements from the calculated ones. The purpose of the article is to develop a methodology for estimating the in-phase output rays at the aperture of the Cassegrain antenna parabolic mirror at the calculated values of the design parameters, as well as when they deviate from the nominal values. A simple method of computer-aided configuration construction of the ray structure in a two-mirror Cassegrain antenna has been developed. The influence of the deviation of the emitter position from a given starting point, as well as the shift of the focus of the counter-reflector from the focus of the parabola on the phasing of the rays has been investigated. The presented methodology makes it possible to verify the applicability of the calculated ratios borrowed from the literature. The presented method of estimating the common phase of the rays at the aperture of the Cassegrain antenna may be useful for the rapid verification of the ratios used in the design of its geometric structure. Also it can be used to estimate the permissible deviations of the geometric dimensions of the elements from the nominal values. Finally, the visibility of the focus graphic illustration facilitates the rejection of obviously unacceptable antenna implementation options.
Assessing the security status and future scenarios of the Mediterranean region through the water-energy-food nexus
Authors: García-García Pablo
Published: October 2023

Over the past decades, the Mediterranean region has faced significant challenges due to the impacts of climate change and ongoing conflicts. This study proposes an assessment of the region's security status and potential future scenarios through the lens of the water-energy-food nexus, utilising indicators that align with the Sustainable Development Goals (SDGs). These indicators include agricultural yields, value-added, and land variations, water and sanitation services, income and inequality, use of renewable energy, carbon footprints, and political stability. To evaluate the situation, this analysis applies Ward's hierarchical clustering algorithm to group countries based on these indicators, examining the average terms and the years 2006 and 2015 for comparative analysis. Additionally, an exponential smoothing algorithm forecasts future trends and generates clusters for the years 2030 and 2050. By computing an index of convergence for each cluster and indicator, this contribution identifies areas of particular interest from a security perspective. The findings of this analysis reveal a growing polarisation within the Mediterranean region, with European countries and Israel forming one distinct group, and African and Eastern countries (excluding Israel) forming another. Notably, recurring disparities exist in variables such as agricultural land, political stability, violence, income per capita, and agricultural value added. Conversely, certain variables, including the Gini coefficient, prevalence of overweight population, and access to drinking water services, show signs of convergence. These results shed light on potential areas of both conflict and cooperation in the Mediterranean region, highlighting the importance of addressing the challenges posed by climate change. By understanding the geopolitical dynamics and identifying key areas of concern, policymakers can develop informed strategies to promote stability and sustainable development in the region.
Understanding Interoception and Its Importance in Body and Mind Functions: A Review
Authors: Mu Yihong
Published: October 2023

Interoception, the sensing of the body’s internal sensations, contributes to numerous aspects of human’s cognitive and affective abilities. Interoception mechanisms ensure physiological health through the coordination of homeostatic reflexes and allostatic responses. This review presents how deeply interoception controls our daily motivational behaviors and associated affective and emotional feelings. Since its discovery at the twilight of the 19th century, relentless research and experimental work have pushed far back the borders of interoception. Concept enrichment is still to find its limits: from its role in balancing and maintaining the energy-efficiency of the integrity and health of the body (homeostasis) to its emotional importance in learning, motivation and decision making, the field of interoception doesn't stop extending. Scientific measuring of interoceptive effects is also making fulgurant progress, though accuracy and relation between self-awareness and interoceptive attention are still to be fine-tuned. In addition, the review also addresses impairment caused by interoceptive deficiencies (alexithymia), commenting research and group experiments made in physical, emotional and physiological fields. Open questions are raised about whether interoception is a unitary function as well as about the ways to reduce individual weak interoceptive abilities, such as training and meditation. In conclusion, the signaling, sensing, and detection of bodily states are implicated in physical and mental well-being. Interoception research contributes to understanding into the dynamic interactions between body, brain, and mind.
Waqif Preference of Waqf-Based Qardhul Hassan Financing in Malaysia: An Analytic Hierarchy Process Perspective
Authors: Amin Hanudin , Abduh Muhamad , Shaikh Imran Mehboob , Panggi Faizah , Ag Omar Pg Mohd Faezul Fikri , Rizal Hamid , Ghazali Mohd Fahmi , Razak Dzuljastri Abdul
Published: October 2023

Although Islamic banking products like tawarruq and bay al-inah personal financing products available in the Malaysian Islamic banking market, their ability to meet the need of those disadvantaged in the case of health crisis like COVID-19 or financial crisis are somehow marginal.  There is a need for Islamic social finance products to meet this challenge and one of them is the offered qardhul hassan financing funded through crowdfunding on the basis of waqf. This is called waqf-based qardhul hassan financing. For this purpose, this study introduces QAFSCALE, referred to qardhul hassan financing scale to gauge waqif preference on the facility should it is made available in the market. A total of 324 waqif or donors were participated in this study to identify their preference in donating their money in the facility should it is introduced. This study used Attia’s (2010) maqasid al-Shariah theory to generate the QAFSCALE, beginning from the conceptualisations, dimensions and importantly the batter items that represent the QAFSCALE. Analytic Hierarchy Process (AHP) is used. The results obtained indicate that humanity factor is ranked first in importance, followed by family factor, consumer factor and ummah factor. This study limitation is the sample size. A broader sample would have made the result better. Adding to that, the newly designed scale is first of its kind in the context of waqf-based qardhul hassan financing and more studies needed to prove its applicability and generalization, at least. The results obtained might be of interest to managers of Islamic banks and the like to understand their potential waqif preference in the context of waqf-based qardhul hassan financing. Four factors drawn from QAFSCALE were evaluated to identify important factors leading to the waqif contribution on waqf.
A INVENÇÃO DO DIREITO À CONVIVÊNCIA FAMILIAR E COMUNITÁRIA
Authors: Vieira Alisson Tiago Gonçalves , Hüning Simone Maria
Published: October 2023

O artigo objetiva analisar as condições históricas e políticas que tornaram a convivência familiar e comunitária um objeto jurídico-político pelo Estado brasileiro. A pesquisa foi inspirada por ferramentas teórico-metodológicas de Michel Foucault. O estudo analisa documentos históricos nacionais e internacionais, produzidos durante os séculos XX e XXI, sobre os direitos e políticas para crianças e adolescentes. Os resultados sinalizam que a produção do direito é marcada por práticas racistas, coloniais, filantrópicas, encarceramento, centralização sociofamiliar e adoção de discursos universais como estratégias de governar em diferentes períodos históricos. As conclusões situam a necessidade de analisar criticamente os discursos e práticas que forjaram tal direito, a fim de desnaturalizá-lo e de refletir sobre os possíveis efeitos éticos-políticos de seus acionamentos e justificativas nas políticas públicas e ações cotidianas contemporâneas.
“A POLÍCIA, O BISPO E O POVO”
Authors: Da Costa Osnar
Published: October 2023

Este trabalho delimita seu objeto de estudo a uma síntese acerca de registros policiais a um grupo católico no norte do estado da Bahia, em especial ao paradoxo da resistência de esquerda promovida pelo bispo D. José Rodrigues da Diocese de Juazeiro, no período de 1984-1985, nisso, se amparando em pesquisa documental disponibilizada pelo Sistema de Informações do Arquivo Nacional – SIAN. A metodologia utilizada se aportou na interpretação dos dados e constatou que nos anos finais do regime militar brasileiro o fator repressivo em regiões interioranas do Brasil fora excetuado em razão da política socioeconômica.
Divorce by Adultery in Peasant Families of the Yaroslavl Province (Second Half of the XIX - Beginning of the XX Century)
Authors: Krivosheeva Yulia A.
Published: October 2023

The article considers the peculiarities of divorce proceedings initiated by the peasants of the Yaroslavl province due to adultery of one of the spouses. The author’s studied the terms, procedure, and documentary formalities of divorces, the reasons that prompted the claimants to file a request for the termination of their marriages, the results of divorce proceedings. The peculiarities of divorces are examined by the gender approach.
The New Economic Theory of the Family": Critical Notes by a Lawyer
Authors: Lushnikov Andrey M. M.
Published: October 2023

The article gives the author’s assessment of modern approaches of economists to the family and family relations. The study was based on the "new economic theory of the family", at the origins of which was the American economist G. Becker. The article notes that a purely economic approach to the family and family relations ignores the subjective element, makes the approach to love and altruism, as the initial elements of family relations, extremely reductive, not to mention the use of economic terminology (value, benefit, efficiency, rarity, etc.). to family law phenomena. As a conclusion, it is emphasized that the arguments of economists are very significant for taking into account the share of a spouse who does not work, but keeps a household, when dividing property during a divorce, when determining the amount of alimony, etc. However, outside of property relations, the economic approach does little to give both law and other humanitarian disciplines.
Common property of spouses: features of definition in notarial and judicial practice
Authors: Korotkevich Maria P.
Published: October 2023

The article is devoted to the analysis of the peculiarities of determining the composition of the property of spouses in notarial and judicial practice. The article analyzes the main provisions of the codified acts of the Republic of Belarus, regulatory legal acts regulating notarial activity, resolutions of the Plenum of the Supreme Court of the Republic of Belarus containing the rules for determining the property entering the common joint property of spouses. There are some differences in approaches to the content of the constructions «common property of spouses» and «joint property of spouses» - both at the regulatory level and in the legal positions of the courts. The features of determining the status of individual objects of property acquired in marriage and the practical implementation of these features are considered.
UNA NUEVA E INTERESANTE ESPECIE DE SLOANEA (ELAEOCARPACEAE) DEL PACÍFICO COLOMBIANO
Authors: Palacios-Duque Leonardo , Fernández-Alonso José Luis
Published: October 2023

Como parte de los trabajos que actualmente se adelantan en el género Sloanea L. (Elaeocarpaceae), se describe e ilustra Sloanea calva Palacios-Duque & Fern. Alonso, nueva especie y uno de los árboles de mayor porte del departamento del Chocó y se comentan sus afinidades taxonómicas.
EFECTO DEL MÉTODO DE SÍNTESIS SOBRE LA SINTERABILIDAD DE LOS POLVOS CERÁMICOS DE (Sn,Ti)O 2
Authors: Ararat C. , Varela J. A. , Rodríguez-Páez J. E.
Published: October 2023

El sistema (Sn,Ti)O 2 , sin y con dopantes, es de gran interés por las potencialidades tecnológicas que presenta como sensor de gas y como varistor. A pesar de esto se ha realizado muy poco trabajo para mejorar los métodos de síntesis que permitan obtener polvos cerámicos de (Sn,Ti)O 2 , sin y con dopantes, con características físicas y químicas pre-determinadas. Se realizó la síntesis de polvos cerámicos de este sistema utilizando los métodos de coprecipitación y precursor polimérico (Pechini). Los polvos obtenidos se caracterizaron con Difracción de Rayos X (DRX) y análisis térmicos (ATD/TG). La sinterabilidad de los mismos fue estudiada utilizando dilatometría y la microestructura de muestras densificadas se observó utilizando Microscopia Electrónica de barrido (MEB). Además se realizó una discusión de los resultados obtenidos considerando los diferentes fenómenos fisicoquímicos que se presentaron durante la sinterización de las muestras.
VARIACIÓN MORFOMÉTRICA EN POBLACIONES NATURALIZADAS Y DOMESTICADAS DE LA TILAPIA DEL NILO OREOCHROMIS NILOTICUS (TELEOSTEI: CICHLIDAE) EN EL NORTE DE COLOMBIA
Authors: Narváez B. Juan Carlos , Acero P. Arturo , Blanco R. Jacobo
Published: October 2023

Con el propósito de conocer la variación ecológica de la tilapia del Nilo Oreochromis niloticus en el norte de Colombia, se recolectaron 392 individuos en dos lagunas costeras, un embalse, dos ciénagas y tres centros piscícolas. El análisis discriminante canónico libre del efecto del tamaño (CDA-SF) de 21 medidas morfométricas entre 10 puntos anatómicos reveló discriminación entre las poblaciones naturalizadas y domesticadas. El CDA-SF también reveló variación morfométrica dentro de cada grupo. En las poblaciones naturalizadas se identificaron tres morfotipos, uno para cada categoría de sistema (dulceacuícola, estuarino y alcalino). Todos los resultados fueron atribuidos a las condiciones ambientales (salinidad, alcalinidad, temperatura y condiciones morfoedáficas), al tipo de alimento consumido por cada tipo de población en cada cuerpo de agua y al tipo de hábitat (silvestre y confinado).
AMBIENTES ATMOSFÉRICOS DE SISTEMAS CONVECTIVOS DE MESOESCALA SOBRE COLOMBIA DURANTE 1998 SEGÚN LA MISIÓN TRMM Y EL RE-ANÁLISIS NCEP/NCAR
Authors: Mejía John Freddy , Poveda Germán
Published: October 2023

Se presenta un diagnóstico de los ambientes atmosféricos en los cuales se desarrollan sistemas convectivos de mesoescala (SCM) sobre Colombia y el Pacífico Oriental durante 1998, usando información de satélite de la misión TRMM (Tropical Rainfall Measuring Mission), y los datos del re-análisis NCEP/NCAR. Se cuantifican los índices de estabilidad atmosférica denominados CAPE, CINE, LI, y temperatura potencial equivalente, así como índices cinemáticas tales como vorticidad vertical relativa y cortante vertical del viento. Se evalúan los ambientes atmosféricos que se presentaron durante 1998 asociados con la ocurrencia de SCM, y su variabilidad dentro de los distintos trimestres del ciclo anual. Se estiman los índices atmosféricos de gran escala asociados con los eventos mas intensos de precipitación en los SCM, se estudian las relaciones existentes de tales índices atmosféricos de gran escala, y se analizan las condiciones de la atmósfera durante el ciclo de vida que precede y sigue la evolución de los SCM.
Направления стимулирования экспортоориентированного производства в ненефтяном секторе
Authors: Гасанова Н.Э.
Published: October 2023

Одно из основных направлений дальнейших успехов государств во внешнеэкономической политике связано с мерами по стимулированию экспорта в ненефтяном секторе. В связи с этим протекционистские меры во внешнеэкономической политике по стимулированию экспорта приводят к ориентации на внешние рынки и усилению позиций местных производителей на этих рынках. Важными направлениями мер государственной поддержки считаются применение передовых технологий для производства экспортоориентированной и конкурентоспособной ненефтяной продукции, увеличение инвестиций в производственные сферы
Modern Philosophy: the Decline or the Development?
Authors:   Saratov State University, Mokin B.I.
Published: October 2023

In the article the author bases the statement that the philosophy is a peculiar way of the comprehension of the actuality, the way that is inseparably connected with deduction and is not leaned upon the actual knowledge about the surrounding world. And the way of thinking that is inherent to the philosophy is ‘interpretative’ unlike the scientific way of thinking that can be defined as a ‘calculative’ one. The problems of the spirituality are alien to it and it impoverishes the spiritual world of a human turning him gradually into a lively thinking robot.
Subjective Time of Culture
Authors:   Saratov State University, Bogatyreva E. N.
Published: October 2023

Article is devoted the answer to a question, what changes with inevitability are involved by new representation about time and that they mean for the person. In habitual model existential new informative problems and the purposes are shown. One of such problems is the philosophical analysis of subject time of culture, time of culture of the person.
Confucius and the «Global Ethics» Draft
Authors:   Saratov State University, Fakhrudinova E.R.
Published: October 2023

The article investigates the relationship between the philosophy of Confucius and «global ethics». It is emphasized that the fundamental Confucian principles coincide with the important moral and ethical installations of «world ethos».
Homo Virtualis: Psychological Characteristics
Authors:   Saratov State University, Afanasyeva V.V.
Published: October 2023

Formation of a new type of human personality, Homo Virtualis is discussed, and peculiarities of its psychological characteristics are investigated.
Сonstitutional Psychology
Authors:   Saratov Socio-Economics Institute of Plekhanov Russian University of Economics, Zaichenko A.A.
Published: October 2023

The subject of the constitutional psychology is correlations of constitutional – body, dermatoglyphic, serologic and psychological (personality, and mainly temperamental, «psychodynamic») features. Constitutional psychology is developing on the boundary between biological psychology (the area of psychology which uses the observations of behavioral and biological parameters with the purpose of identifying their associations) and constitutionology (the division of physical [biological] anthropology), the subject of which is the constitution of a person – the set of organism properties associated with sensibility and individual diversity of the biological time (features, rate of individual development).
Russian Immigrants' Personal Self-Actualization and Subjective Well-Being
Authors:   Institute of Social Education (branch) of the Russian State Social University, Usova N.V.
Published: October 2023

The article represents results of empirical research of the interrelation between Russian immigrants' personal self-actualization and subjective well-being. Detailed results based on a sample of Russians who migrated, and Russians who live in Russia are provided. Common and particular interrelations between personal self-actualization and subjective well-being are highlighted. Also the features typical for persons living in Russia, Germany, USA and Spain are considered.
Features of Professional Intentions of Students-Psychologists at Early Stages Professionalization
Authors:   Saratov State University, Shamionov A.D.
Published: October 2023

In the article results of empirical research of features of professional intentions of students-psychologists are discussed, the problem of the attitude of students to the professional work is considered. Motives of training of students are analyzed, dynamics of their professional intentions comes to light and studied. The questions, concerning specificities of representations of the future experts on the selected trade are considered.
The Research of Influence of Multimedia Teaching Technologies at the Effectiveness of the Didactic Process
Authors:   Committee on Education of the Administration of the Municipal Formation ", Epifanova M.A. ,   City of Saratov"
Published: October 2023

Explored results of introduction in the scholastic process of school of multimedia technologies. Shown that as a result increases a level of motivation of self-education and qualitative didactic process factors.
Assessment of Physicochemical Properties of the Ovwian Section of the Warri River
Authors: Anderson Faith Ekene , Duke Okoro
Published: October 2023

This study evaluates the physical, chemical and heavy metal properties of the Ovwian Section of Udu River, Delta State, Nigeria with a view of ascertaining the water quality and establishing the correlation with national and international standards and activities around the water body. The physicochemical properties analyzed include pH, temperature, dissolved oxygen, total solids, total suspended solids, biological oxygen demand, salinity, alkalinity, total hardness amongst others. Some of the heavy metals studied include copper, chromium, iron, zinc, manganese and lead. The mean temperature (25.92±0.50oC), total dissolved solid (mean concentration - 22.53±5.46 mg/L), electrical conductivity (35.27±8.60 µS/cm), dissolved oxygen (mean concentration of 7.23±0.31 mg/L), biological oxygen demand (mean concentration - 2.01±0.84 mg/L), total hardness, nitrates (mean concentration - 1.06±0.52 mg/L), sulphate (mean sulphate concentration - 13.90±0.86 mg/L) and total alkalinity (8.00 mg/L - 12.00 mg/L) values were found to be within the permissible limits of WHO and FEPA. On the other hand, the total suspended solid (7.09 mg/L), turbidity (mean concentration - 34.54±14.18 NTU), pH and total coliforms were above the permissible limits of the regulatory agencies used in the study. Among the heavy metals present, Lead showed a very high concentration above the tolerance limit of WHO and FEPA. The result shows that some level of pollution is associated with the Ovwian section of the Udu River and adequate treatment is thus recommended before it can be used for any purpose.
Quatro aulas e a experiência da pandemia
Authors: Raposo Reginaldo Rodrigues
Published: October 2023

O artigo busca principalmente descrever tanto a experiência de duas aulas em um estágio iniciado em uma escola estadual na Zona Leste da cidade de São Paulo, a interrupção das atividades no colégio durante o período da crise sanitária, quanto duas aulas do Centro de Mídias transmitidas durante o isolamento social. Do mesmo modo, a partir das descrições, sugere-se algumas discussões de caráter filosófico sobre a educação neste contexto à luz de contribuições de pensadores de língua alemã do início dos séculos XIX e XX.
Plasticity of red wine sensory profiles: improved understanding through grape berry sugar loading profiles
Authors: Antalick Guillaume , Šuklje Katja , Blackman John W. , Schmidtke Leigh M. , Deloire Alain
Published: October 2023

Reproducible aromatic red wine styles can be predicted based upon the measurement of grape berry sugar accumulation (corresponding to the quantity of sugar that accumulates per berry; mg/berry/day) and berry fresh mass. Distinct maturity stages, “Fresh Fruit” reminiscent of fresh/red fruits notes and “Mature Fruit” associated with dark fruit and plum characters could be correlated to berry sugar accumulation (mg/berry) and berry fresh mass evolution without any direct relationship with berry sugar concentration. After berry sugar accumulation plateaued, wine aromatic and phenolic maturity were uncoupled from technological maturity.
From CGRP to PACAP: Unraveling the Next Chapter in Migraine Treatment
Authors: Tanaka Masaru , Szabó Ágnes , Körtési Tamás , Szok Délia , Tajti János , Vécsei László
Published: October 2023

Migraine is a neurovascular disorder that can be debilitating for individuals and society. Current research focuses on finding effective analgesics and management strategies for migraines by targeting specific receptors and neuropeptides. Nevertheless, the responder rates of recently approved calcitonin gene-related peptide (CGRP) monoclonal antibodies (mAbs) and receptor inhibitors remain around 50 percent. To address the need for novel therapeutic targets, researchers are exploring the potential of another secretin family peptide, pituitary adenylate cyclase-activating polypeptide (PACAP), as a ground-breaking treatment avenue for migraine. Preclinical models have revealed how PACAP affects the trigeminal system, which is implicated in headache disorders. Clinical studies have demonstrated the significance of PACAP in migraine pathophysiology; however, a few clinical trials remain inconclusive: the pituitary adenylate cyclase-activating peptide 1 receptor mAb, AMG 301 showed no benefit for migraine prevention, while the PACAP ligand mAb, Lu AG09222 significantly reduced the number of monthly migraine days over placebo in a phase 2 clinical trial. Meanwhile, another secretin family peptide vasoactive intestinal peptide (VIP) is gaining interest as a potential new target. In light of recent advances in PACAP research, we emphasize the potential of PACAP as a promising target for migraine treatment, highlighting the significance of exploring PACAP as a member of the antimigraine armamentarium, especially for patients who do not respond to or contraindicated to anti-CGRP therapies. By updating our knowledge on PACAP and its unique contribution to migraine pathophysiology, we can pave the way for reinforcing PACAP and other secretin peptides, including VIP, as a novel treatment option for migraines.
Comparative Effect of Human Recombinant Erythropoietin and Roxadustat on Blood Pressure and Micro-Inflammatory Response in Hemodialysis Anemia
Authors: Li Wenwen , Zha Fei , Shi Chunhua
Published: October 2023

Objective To observe the effect of roxadustat on blood pressure and micro-inflammatory response in patients with hemodialysis anemia, and to provide a viable technique for the treatment of hemodialysis anemia patients. Methods A total of 100 hemodialysis anemia patients admitted to the Nephrology Department of our hospital from July 2020 to July 2021 were enrolled and randomly divided into an observation group (roxadustat) and a control group (human recombinant erythropoietin (rhEPO). The clinical efficacy, blood lipid metabolism, inflammatory factor levels, iron metabolism-related indicators, blood biochemical indicators, anemia indicators, adverse reactions and blood pressure were recorded and compared. Results There was no significant difference in baseline data and serum indicators (P>0.05). The study group demonstrated superior performance to the control group in terms of clinical efficacy, blood lipid metabolism, inflammatory factor levels, iron metabolism-related indicators, blood biochemical indicators, anemia indicators, adverse reactions and blood pressure (all P<0.05). Conclusion Compared with rhEPO treatment, roxadustat exhibits a promising outcome in treating anemia and has slight impact on blood pressure of patients.
Metabolite Profiling of Allium hookeri Leaves using UPLC-qTOF-MS/MS and Senomorphic Activity of Phenolamides
Authors: Doan Thi-Phuong , Zhang Mi , An Jin-Pyo , Ponce-Zea Jorge-Eduardo , Mai Van-Hieu , Ryu Byeol , Park Eun Jin , Oh And Won-Keun
Published: October 2023

The plant Allium hookeri, belonging to the Allium genus, has a history of being used both as a common food ingredient and in herbal medicine. It has recently been reported to have anti-oxidant and anti-inflammatory effects. A. hookeri has been also shown to exhibit neuroprotective and anti-neuroinflammatory activities, but the active compounds responsible for these effects have not been identified in previous studies. This study aimed to perform a metabolite profiling using an HRESI-qTOF MS/MS-based molecular networking approach and identify the active compounds from A. hookeri that target senescent cell-associated secretory phenotype (SASP) inhibitory effects, which contribute to neuroprotective activities. As a result, ten compounds, including one new flavonoid (2) and nine known compounds (1 and 3–10), were identified, and their biological activity was tested. The most potent compound was N-trans-feruloyltyramine (7), which inhibited SASP markers and contributed to the senomorphic activities of A. hookeri. These findings suggest that the phenolamides from A. hookeri could be a promising source of bioactive compounds for preventing senescence-associated diseases.
Revisit Prophet Muhammad, Mecca, and the Beqaa Valley: A Combined Method of Holy Quranic Model and Contemporary Research
Authors: Abdul Mannan Kazi
Published: October 2023

Nowadays, more than 180 million people believe that the Holy Qur'an was sent by the Almighty Allah through Prophet Muhammad in 610-632 A.D in Mecca and Medina. However, the word Mecca (Q: 48:24) is mentioned only once in the entire Holy Qur'an, which is not related to the birth of the Prophet or any worship. Conventional Islam is mostly based on the hearsay of some Islamic narrators published in the eighth and ninth centuries. To think deeply and conduct research on the verses of the Holy Quran has been mentioned (special urge) directly and indirectly by this Holy Scripture itself many times but it would not be wrong to say that there is no scholarship on the verses of the Quran based on the research method described in the Holy Quran until the present century. Therefore, this paper has been dared to carry out by combining the methods of research followed in the Holy Quran and the academically accepted research methodology. The analysis shows that the results of almost fourteen hundred years of mythological history of conventional Islamic narrators are opposites. First of all, the proper name of the Prophet revealed by the Holy Quran is Ahmed, but Muhammad is an adjective and there are many such names. Secondly, this prophet was not born in Mecca, KSA, nor in 570/571 A.D, but in the Beqaa Valley of Lebanon, between the third and fourth centuries. Thirdly, the Muslim Hajj (pilgrimage) of Mecca is celebrated entirely according to the Lahwal Hadith (idle tales) (Q: 31:6) in the language of the Holy Quran. Originally the place designated for pilgrimage was in the Beqaa Valley, Lebanon. This article will have a double influence on the Muslim world, that is, Islamic scholars will think again deeply and research new ways of scholarship of the Holy Quran, instead of based on the hearsay of idle tales (Lahwal Hadith). On the contrary, those who are stubborn Islamic narrators, since they have already rejected the Holy Quran, will not hesitate to violently attack the researchers and they will not be positively motivated by this paper. This article specifically urges Islamic scholars to conduct in-depth studies on the most important issues of Islam using the Holy Quranic research method.
"Exploring the Effects of Self-Curing Techniques on the Characteristics of Self-Compacting Concrete "
Authors: Verma Manvendra , Meena Rahul Kumar , Khan Mohammad Iqbal , Khatib Jamal M.
Published: October 2023

Self-compacting concrete is essential for vertical structures due to high reinforcement and usage of pumps for transporting the concrete at the working site. SCC is mainly influenced by self-curing for arid areas. To explore the SCC (Self-Compacting Concrete) mixture and condition influencing the self-curing condition were determined using the experimental procedure. Determination of various parameters was done using T50 slump flow, V-funnel, L-box-box, J ring test, compressive strength, splitting tensile strength, and flexural strength test. After the experimental investigation, it shows that if the dose if the dosage of superplasticizer (SNF%) increases, it will improve the concrete mixture's different properties, such as flowability and ability to pass. Higher water-to-cement ratios (w/c) generally result in enhanced flowability and stability. Mixture 9 (SNF 0.35, w/c 0.5) demonstrates favourable results across all parameters, indicating excellent flowability and stability. Mixture 9 (SNF 0.35, w/c 0.5) also shows favourable flowability and stability characteristics. Lower concentrations, such as 0.5%, may have a positive effect up to a certain point but might not provide sustained improvement over the curing period. On the other hand, concentrations of 1% and 2% demonstrated consistent and significant enhancement in strength throughout the 28 days. It is found that the higher concentrations of PEG 4000 may be more effective in improving the material strength.
An Investigation of Wind Shear Coefficients and Their Impact on Electrical Energy Generation in Coastal Locations of Balochistan, Pakistan
Authors: Jan Yasir , Ahmed Saeed , Wang Yong , Sydney Mutale
Published: October 2023

This study examines the wind shear coefficient (WSC) values at three coastal wind sites located in the southern region of Balochistan, Pakistan: Pasni, Ormara, and Jiwani. These WSC values were obtained using 10-minute measured wind speed data at heights of 20, 40, and 60 meters above ground level (AGL). Since wind measurements are typically recorded at lower heights due to cost and resource constraints, extrapolation techniques were employed to estimate wind speeds at higher altitudes. However, using a constant WSC value for extrapolation may lead to significant errors between extrapolated and actual wind speed measurements, impacting the energy output of wind turbines. To evaluate the effect of WSC on energy yield, the study employed power curves and frequency distributions for 2MW and 1.5MW wind turbines. Additionally, wind power density was calculated using air density derived from measured air temperature and surface pressure data, covering two years period from November 2016 to August 2018. The overall mean WSC values were found to be 0.076 at Pasni, 0.094 at Jiwani, and 0.053 at Ormara. The study further investigated the seasonal, monthly, and diurnal variations of WSC. For assessing wind resources at a height of 60m, the study utilized Wind Roses, wind power density, and Weibull parameters. Comparing the actual WSC values presented in this paper with those obtained using the 1/7 power law and measured data at 60m AGL, the energy yield from the wind turbines showed reduced output and capacity factor.
Splenic Stiffness Measured by 3-Tesla Magnetic Resonance Elastography Is Correlated with Age in Healthy Individuals
Authors: Poçan Süheyl , Karakaş Levent
Published: October 2023

Background: We aimed to determine the splenic stiffness (SS) values in healthy individuals as measured by 3 Tesla magnetic resonance elastography (3T MRE) and to investigate the possible effects of parameters such as age, sex, spleen volume, diameter, and parenchyma thickness on SS.

Methods: A total of 54 healthy volunteers were included in this cross-sectional study. Participants' age and sex information were recorded, in addition to spleen craniocaudal and anteroposterior diameter, cortical thickness, spleen volume, and SS, which were measured using 3T magnetic resonance imaging and MRE. Results: Twenty-nine male and 25 female subjects with a mean age of 54.78±15.40 years were included in the study. Mean cradiocaudal diameter was 10.46±1.16 cm, anteroposterior diameter was 9.88±1.29 cm, parenchyma thickness was 4.08±0.67 cm, SS was 3721.94±709.69 Pascal (Pa), and median spleen volume was 292.54 (239.40-311.00) cm3. A significant positive correlation was observed between age and SS (r=0.779, p<0.001). The SS values were not associated with sex, craniocaudal diameter, anteroposterior diameter, parenchymal thickness, or volume Conclusion:Age should be considered when using SS in the diagnosis and staging of relevant diseases such as portal hypertension and esophageal varices. Our results should be confirmed by future studies using 3T MRE in larger populations.
Identity-Behavior Discordant Heterosexuals Groups in Britain: Findings from the National Survey of Sexual Attitudes and Lifestyle 2010–2012
Authors: Calatrava Maria , Sullins Paul , James Steph
Published: October 2023

This study delves into heterosexual identity-behavior discordance, exploring the interaction between sexual identification and behavior in U.K. Analyzing representative 2010 data from the British population (N=12,472), the research categorizes participants into different groups: nonheterosexual, concordant heterosexual, and three discordant heterosexual categories (closeted, experimenters, and desisters). These groups were compared in terms of sociodemographics, attitudes towards sexuality, risk behaviors and health indicators. Discordance was associated with permissive social attitudes, including behaviors such as adultery and one-night stands, and with increased substance abuse and risky sexual behaviors, especially among the closeted. Surprisingly, physical and mental health of discordant heterosexuals was similar to concordant heterosexuals, in contrast to the poorer health of nonheterosexuals. Due to the significant variations in lifestyles and health indicators among different groups, this study highlights the importance of providing targeted services and interventions.
Numerical Investigation of the Effects of the Diffusion Time on the Mechanisms of Transition from a Turbulent Jet Flame to Detonation in a H2-Air Mixture
Authors: Saeid Mohammad hossein  Shamsaddin , Khadem Javad , Emami Sobhan , Oh Chang Bo
Published: October 2023

The current study primarily aimed to simulate detonation initiation via turbulent jet flame acceleration in partial-premixed H2-air mixtures. Different vertical concentration gradients were generated by varying the duration of hydrogen injection (referred to as diffusion time) within an enclosed channel filled with air. H2-air mixtures with average hydrogen concentrations of 22.5% (lean mixture) and 30% (near stoichiometric mixture) were investigated at diffusion times of 3, 5, and 60 seconds. Numerical results show that the vertical concentration gradient has a major influence on the early-stage of flame acceleration (FA). In the stratified lean mixture, detonation began in all the diffusion times, and comparing the flame-speed graphs showed that a decrease in the diffusion time and an increase in the mixture inhomogeneity speeded up the flame propagation and the jet flame to detonation transition occurrence in the channel. In the stratified H2-air mixture with an average hydrogen concentration of 30%, transition from a turbulent jet flame to detonation occurred in all the cases, and the mixture inhomogeneity weakened the FA and delayed the detonation initiation.
Bilişsel Çarpıtma ve Epistemik Kusur Farkındalığının P4C Uygulamalarına Katkısı
Authors: KILINÇ Yurdagül
Published: October 2023

Öz: Bilişsel çarpıtmalar çocukluk döneminde oluşmaya başlar ve fark edilip önlenmediğinde bilgi edinme, değerlendirme veya iletme becerimizi engelleyen epistemik kusurlara dönüşür. Bilişsel çarpıtmalar psikolojide, epistemik kusurlar ise ağırlıklı olarak epistemolojide çalışılmaktadır. Hatalı düşünmenin bu iki grubu arasında bir ilişki olup olmadığına dair yeterli bir veri bulunmuyor. Bu yüzden bu çalışma iki temel iddiaya sahiptir. İlki, çocukluktaki bilişsel çarpıtmaların yetişkinlikte epistemik kusura dönüşmesi ve bunların bir karakter özelliği haline gelmesinin birey açısından negatif ve yıkıcı sonuçları vardır. İkincisi, bilişsel çarpıtmalar ve epistemik kusurların giderilmesi epistemik erdemlerin öğrenme süreçlerinde aktif olarak kullanılmasıyla mümkündür. Şayet bu iki sav doğru ise bilişsel çarpıtmaların ve epistemik kusurların giderilmesini ve yerine epistemik erdemlerin kazandırılmasını merkeze alacak P4C uygulamalarının, çocuklarda entelektüel karakter dönüşümü sağlayacağını, öğrencileri eğitimlerinin tüm süreçleri boyunca destekleyeceğini ve sosyal hayata olumlu katkıda bulunacağını düşünmekte haklı gerekçelerimiz vardır. Çünkü çocukluk döneminde bilişsel çarpıtmalarını fark eden çocuk, eleştirel düşünme ve rasyonaliteye yatkın olacak, negatif-otomatik düşüncelerden uzaklaşacak ve farklılıkları tehdit değil bir zenginlik olarak algılayacaktır.