bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Pemasaran Digital dan Kemudahan Penggunaan Platform Marketplace Shopee terhadap Minat Beli Mahasiswa Bisnis Digital
Authors: Afifah Haya , Jasmien Laila , Qisthi Miizan , Ihsan Raka , Syti Sarah Maesaroh
Published: July 2023

Penelitian ini bertujuan untuk menganalisis pengaruh pemasaran digital dan kemudahan penggunaan platform marketplace Shopee terhadap minat beli mahasiswa bisnis digital. Dalam era digital yang semakin maju, pemasaran digital dan penggunaan platform marketplace telah menjadi faktor penting dalam mempengaruhi perilaku konsumen, termasuk mahasiswa. Penelitian ini melibatkan responden mahasiswa bisnis digital yang aktif menggunakan platform marketplace Shopee. Metode pengumpulan data dilakukan melalui survei online dengan menggunakan kuesioner terstruktur. Variabel pemasaran digital dan kemudahan penggunaan platform diukur menggunakan skala Likert. Data yang terkumpul kemudian dianalisis menggunakan teknik analisis regresi. Temuan studi ini menunjukkan bahwa pemasaran digital secara signifikan dan menguntungkan memengaruhi niat beli siswa yang mempelajari bisnis digital. Minat beli siswa dapat ditingkatkan dengan menggunakan teknik pemasaran digital yang efisien termasuk media sosial, iklan online, dan konten terkait. Selain itu, temuan penelitian menunjukkan bahwa minat beli mahasiswa dipengaruhi secara positif dan signifikan oleh kemudahan penggunaan platform marketplace Shopee. Pelajar lebih cenderung tertarik dan tertarik untuk bertransaksi melalui platform yang mudah digunakan, memiliki navigasi yang intuitif, dan prosedur pembayaran yang mudah. Kesimpulannya, pemasaran digital dan kemudahan penggunaan platform marketplace Shopee berdampak besar pada minat beli mahasiswa yang mempelajari bisnis digital. Hasil penelitian ini memberikan pemahaman yang lebih baik tentang faktor-faktor yang mempengaruhi perilaku pembelian mahasiswa dalam konteks bisnis digital. Temuan ini dapat menjadi pedoman bagi perusahaan atau penjual online dalam merancang strategi pemasaran yang efektif dan meningkatkan pengalaman pengguna di platform marketplace.

Kata Kunci: pemasaran digital, kemudahan penggunaan, minat beli.
Internal Organization Analysis Of Unilever
Authors: Adi Neka Fatyandri  , Defen  , Deviana Lie  , Jason  , Jesty  , Jolin
Published: July 2023

The outbreak of Covid-19 in 2020 has brought downturn to the global economy and many companies went bankrupt during the epidemic. However, according to Unilever's financial report for the first half year, its sales fell only by 1.6% and its financial situation is still stable. The reason for it is not only for Unilever's action of taking Covid-19 as normalization, but also for its differentiation strategies, which make Unilever a competitive enterprise when the consumer products are in demand in Covid-19. Through the literature research method, this article uses the combination of SWOT (strengths, weaknesses, opportunities and threats) and PEST (political, economic, social and technological factors) models to explore the internal and external environments of Unilever in 2020, and concludes that under the multiple impacts of the external environment, Unilever still has great opportunities to make development relying on its own excellent internal conditions.
Pengaruh Brand Equity Terhadap Keputusan Pembelian Iphone Pada Mahasiswa Solo
Authors: Tegar Alfis Ramadhan  , Frendika Yusuf Putra Nugraha  , Fatin Navi Cahyati  , Luwinda Selvia , Erinna Dian Rahmayanti  , Marjam Desma Rahadhini
Published: July 2023

Penelitian ini bertujuan untuk mengetahui pengaruh brand equity terhadap keputusan pembelian apple iphone pada mahasiswa di solo raya. Metode penelitian ini menggunakan metode penelitian kuantitatif dengan data jenis deskriptif. Metode Sampling Data yang digunakan yaitu Random Sampling. Data diperoleh dari data primer. Teknik analisis data yang digunakan adalah  analisis deskriptif, MSI, uji asumsi klasik, analisis linear berganda, uji Hipotesis dan koefisien determinasi. Hasil penelitian ini menunjukkan bahwa Brand awarness, Brand association, Perceived quality, Brand loyalty secara parsial tidak berpengaruh terhadap keputusan pembelian Apple Iphone di daerah Solo Raya.
PENGARUH LABEL HALAL DAN KESADARAN HALAL TERHADAP MINAT PEMBELIAN KONSUMEN PADA PRODUK UMKM DI KOTA BIMA
Authors: Sri Ernawati  , Iwan Koerniawan
Published: July 2023

The meaning of halal is permissible, while haram is not permissible (prohibited) according to Islamic law. Having a halal certificate can give confidence to companies in using or printing halal labels on product packaging or company premises. This study aims to find out how the influence of the halal label and halal awareness has on the purchase intention MSME products in the Bima City. The type of research used in this study is a type of quantitative research with survey methods. Collecting data by distributing questionnaires with a Likert scale to 100 respondents. Data was processed by statistical analysis using SPSS 20.00. The results showed that the halal label had a positive and significant effect on the intention to purchase MSME products in the Bima City and halal awareness did not have a significant effect on the intention to purchase MSME products in the Bima City. The contribution of this research is hoped that MSME actors will immediately take care of halal certificates so that consumers' interest in buying increases and products can be marketed outside the region so that the wider community can get to know MSME products from Bima city.
Investigation of the ENVI-met model sensitivity to different wind direction forcing data in a heterogeneous urban environment
Authors: Eingrüber Nils , Korres Wolfgang , Löhnert Ulrich , Schneider Karl
Published: July 2023

Abstract. As the frequency of extreme heat events in cities is
significantly increasing due to climate change, the implementation of
adaptation measures is important for urban planning. Microclimate modelling
approaches enable scenario analyses and evaluations of adaptation
potentials. An ENVI-met microclimate model was setup for a heterogeneous
urban study area in Cologne/Germany characterized by closed building
structures in the eastern part and an urban park area in the western part.
The goal of this paper is to evaluate the model sensitivity and performance
to different wind direction forcing and demonstrate the importance of
accurate wind forcing data for precise microclimate modelling evaluated with
sensor measurements. To this end, we compared simulated air temperatures at
3 m height level using measured wind direction forcing data with simulated
air temperatures using constant wind direction forcing from west, north,
east and south direction. All other forcing data like wind speed were kept
exactly the same as in the reference run. This sensitivity study was
performed for a warm summer day in 2022. The model results of all five model
runs (reference plus four scenarios) were compared to microclimatological
measurements derived from one station of a dense meteorological sensor
network located in the study area using the simulated mean air temperatures.
We found significant temperature differences between the four sensitivity
tests and the reference run as well as to the sensor measurements.
Temperature differences between the reference run and the measurements were
small and a high statistical model fit could be determined (Nash Sutcliffe
Model Efficiency Coefficient/NSE = 0.91). The four model runs with
constant wind directions showed significantly larger differences to
measurement data and a worse statistical correlation between simulated and
observed data (NSE between 0.62 and 0.15). For constant west winds, cooler
air temperatures and higher wind speeds were found in the urban park and in
the streets and courtyards east of the park. Constant east wind causes
warmer air temperatures in the urban park area and lower wind speeds in the
street canyons and inner courtyards. This shows that cooling effects in
adjacent building blocks due to the greened urban park largely depend on the
wind direction. The sensitivity tests show that the wind direction effect
can result in local air temperature differences of up to 4 K on
average. These results shows that even on summer days with low wind speeds,
accurate wind direction data is highly relevant for accurate air temperature
simulation. This finding can have important implications for urban planning
and the design of green infrastructures in cities, e. g. for the design of
fresh air corridors.
APPLICATION OF DISCONTINUOUS SOLUTIONS IN BOUNDARY ELEMENT METHOD FOR THE BENDING PROBLEMS OF KIRCHHOFF PLATES WITH AN ARBITRARY CONTOUR
Authors: Galbinean Sergiu
Published: July 2023

The discontinuous solutions represent a new direction for the indirect Boundary Element Method (BEM) in the indirect formulation. Discontinuous solutions represent those functions, which when crossing certain lines, the transverse deflection, the slope angle, the bending moment and the generalized shear force may have jumps. These can be used to solve important problems for which the existing methods do not have solutions or a satisfactory accuracy, such as: plates of arbitrary contour, presence of defects, mixed boundary conditions, contact problems, infinite domains etc. In this paper, we describe the methodology of application and the numerical implementation of discontinuous solutions for the bending problems of plates with an arbitrary contour in the classical theory (Kirchhoff). For this purpose, programming codes were developed in the Matlab language, which allowed to calculate the displacements and efforts in the plate. The obtained results were compared with the Finite Element Method (FEM) for different mesh densities.
TECHNIQUES FOR SPECIAL FOLLOWING OF THE DEGRADATIONS DEVELOPMENT FOR A RAILWAY PASSAGE
Authors: Boaca Gheorghita , Scutaru Maria-Cristina , Comisu Cristian-Claudiu , Gimiga Razvan-Gelu
Published: July 2023

Nowadays, most of the transportation infrastructure is already built, the main challenge being the maintenance of these structures in optimal conditions of safety and comfort for users. Therefore, in recent years, research in the field of bridge maintenance has focused on the development and implementation of special monitoring programs that can identify and warn transportation infrastructure managers of the appearance and development of degradation, and especially the possibility of collapse of the construction element in the near future. In addition to familiarizing readers with the structural design of the Constanta Bridge, this work proposes the presentation of the main technologies used for implementing the in-service behavior monitoring program, along with the arrangement of data acquisition units and a brief interpretation of the information provided by the monitoring system. In the conclusions of the article, the authors will draw attention to the bearing capacity of the structure, affected by the development of degradation processes and the need for emergency implementation of rehabilitation and strengthening works of the passage.
USE OF SYNCHRONOUS VECTOR MEASUREMENTS IN THE CALCULATION OF STEADY-STATE MODES OF ELECTRICAL NETWORKS
Authors: Murdid Ecaterina
Published: July 2023

Calculation of steady state mode is the most used tool of modern electrical networks’ analysis. The current study is focused on the application of synchronized phasor measurements technology for steady state mode calculation. There is shown that the solely use of synchronized phasor measurements as initial information for calculating the steady state mode or in conjunction with traditional telemetry from Supervisory Control And Data Acquisition system (SCADA) has a number of advantages over classical methods, which is due to the simplification of the computational process, reduced time and required computational memory, and more reliable informational support. This paper presents the novel approach which consists in steady state mode calculations using accelerated and ultra-accelerated algorithms. These algorithms are based on the implementation of the method of determining values and special structure of the matrix of nodal admittances, what allow to reduce the number of equations, that must be solved in order to find the searched nodal voltages. Besides, there is no need to set balancing node, and dependences between searched and known nodal voltages become linear. The calculations performed for test scheme IEEE-14 demonstrate that both algorithms provide high accuracy results, increase the simplicity and speed of calculation by separate solving of linear equations.
COMPUTING HERITAGE VALUES: A CASE FOR GEORGIA AND MALTA
Authors: Bianco Lino
Published: July 2023

Value criteria and dimensions of heritage are two aspects on which the heritage value is calculated. The Heritage Value Calculation is effectively a computation whereby the heritage value for given site is established. This method was applied to two seminal contemporary architectural case studies, namely, the Palace of Rituals (Georgia) and the Manikata Church (Malta). The heritage value computed for each provides insight into their essential features whilst allowing a comparison of the sites – Georgia and Malta are spiritually linked through the same religious faith. Although the Palace of Rituals scored slightly higher in the dimensions of materiality, function, and spirit and memory, the Manikata Church obtained considerably higher scores for design, location and context, and traditions and techniques, thus ending up with a higher overall final heritage value score.
BREAD ROPE SPOILAGE DEVELOPMENT
Authors: Rumeus Iurie
Published: July 2023

Rope spoilage of bread is produced by bacteria belonging to Bacillus genus. Insufficient cleaning of the wheat before the milling operation contributes to obtaining flour with a high degree of contamination with these bacteria which produce thermoresistant endospores and further maintain their viability in the baking process. After baking, thermoresistant endospores can pass into the vegetative form and can multiply, causing spoilage of bread, which is manifested by the occurrence of an unpleasant odour, and the core of the bread becomes sticky. In this study, samples of bread from second-grade wheat flour were obtained. The kinetics of bacterial growth in the core of the thermostated bread at 37 °C for 84 hours was determined. It was found that immediately after baking the degree of contamination of the bread core was 1.28·104 cfu/g, and after 40 hours of thermostating the degree of contamination of the bread core increased by 2.85 logarithmic cycles, at this bread sample were observed the first signs of the rope spoilage (unpleasant odour). Thus, bread obtained from highly contaminated flour can contain a very large number of bacteria belonging to Bacillus genus, having no signs of rope spoilage, and thus the consumption of this bread may be dangerous to the consumer’s health.
PERCEPTION OF STYLE INFLUENCES IN ARCHITECTURAL SPACE
Authors: Munteanu Angela
Published: July 2023

This research presents a theoretical study, which reflects the importance, possibilities, and character of stylistics observed in some periods of time and manifested in objects and interior elements in public or private architectural spaces in Moldova. The author reflects on the role of research by observing and exploiting the stylistic interference of other cultures and nations, the creations of representatives in the field, and by forming a complex picture of the Moldovan interior space. The influence of stylistic elements on the interior space in different periods of time is elucidated, observed, and implemented in the residential or non-residential space through form and constructive materials, interior design, organization and zoning, furniture, stylistic detailing, but also through visual arts in painting and graphics, real historical portraits, landscape paintings, interiors from different localities and periods of time, demonstrating the undeniable richness of the cultural heritage of the Republic of Moldova, but also the need for research and exploitation of the national treasure.
NEXUS BETWEEN MUSIC, HUMAN SOUL AND PERSONALITY FORMATION: CONTEXTS FROM A NIGERIAN PERSPECTIVE
Authors: Ogunola Abiodun Adekunle
Published: July 2023

Music is an important element in almost all societies of the world. Music is played almost everywhere that there is human endeavour. People opt to listen to music that resonates with them and appeal to their inner senses. Each individual has their own unique taste for music and preference for certain kind of music. Music is something that everyone enjoys listening to as it refreshes the soul and keeps the human mind active. It also helps to reflect the kind of personality that an individual has formed, is forming, or is likely to form due to the repeated exposures to certain music genres. This paper therefore intends to establish connections among music, the human soul, and the formation of human personalities through the influence of music. It is hoped that an understanding of this can help to identify the strength of music on the human personality and to be consciously aware of the kind of music individuals intentionally and unintentionally get exposed to. The paper also explores music preferences from the context of Nigerian music listeners and its implications on the context of their social interactions and personality development.
SOCIAL AGEING
Authors: Băjenescu Titu-Marius I.
Published: July 2023

The article analyzes the phenomenon of human and social aging, in an attempt to answer several questions related to social evolution. What principles should govern the relationship between the individual and society, and how far do our obligations to others extend? To what extent should the state intervene in market regulation? How does social change happen and how can the law ensure that everyone has a voice? The distinction between traditional rural communities and modern industrialized society is analyzed through the lens of Ferdinand Tönnies theory (German sociologist and philosopher, 26.07.1855 - 09.04.1936), wich points out what the distinction between traditional rural communities and modern industrialized society. The former are community that is based on the bonds of family and social groups such as the church. Small-scale communities tend to have common goals and beliefs, and interactions within them are based on trust and cooperation. Tönnies’ theory, along with his work on methodology, paved the way for 20th-century sociology.
Relação ente etnomatemática e a economia solidária no contexto de uma associação em Sumé-PB.
Authors:   , da Silva Bezerra Rosimere
Published: July 2023

O presente trabalho tem como objetivo apresentar alguns recortes sobre a relação entre Educação Matemática e a Economia Solidaria no contexto de uma associação a partir da Etnomatemática. A partir de uma pesquisa de campo, ambientada no contexto de uma associação localizada no município de Sumé-PB onde os seus membros trabalham sobre os princípios de Agricultura Familiar. A mesma tem como objetivo geral analisar a relação entre a economia solidaria e a Educação Matemática a partir da agricultura familiar desenvolvida pelos agricultores da referida associação tendo como ponto de partida a produção e comercio de alimentos no município de Sumé-PB. Diante disso desenvolvemos um estudo de cunho qualitativo conforme Richardson (2009) das praticas de agricultura familiar desenvolvidas pelos mesmos tendo como foco o conhecimento matemático compreendido e utilizados durante a produção e comercialização dos alimentos. As informações foram obtidas mediante o uso do questionário e de entrevista, já para representar os dados utilizou-se gráfico informativo e quadros com as respostas em fileiras. Depois de identificar e categorizar os dados de acordo com as categorias segundo Bardin (1979 apud RICHARDSON, 2009) concluímos com esse trabalho que ao conceituar conhecimento matemático compreendido e utilizado pelo um determinado grupo cultural nas suas atividades econômicas visto a partir da Etnomatemática enquanto programa de pesquisa pode-se relacionar com a Economia Solidaria e contribuir diretamente para autogestão do empreendimento econômico solidário uma vez que os agricultores precisam esta envolvidos para que o seu campo de trabalho venha a ter exito.
Perfil socioeconômico dos agricultores da associação dos produtores agroecológicos do município de Monteiro-PB.
Authors:   , Roberta Santa Cruz Carvalho Augusta
Published: July 2023

A preocupação crescente com a preservação do meio ambiente bem como com o aumento da qualidade de vida das comunidades tem estimulado associações de agricultores a desenvolverem conjuntamente com seus membros o cultivo da agricultura agroecológica, a qual e isenta de agrotóxicos. Com isso, algumas famílias tem produzido alimentos chamados "orgânicos", normalmente cultivados em pequenas áreas, caracterizando a agricultura familiar como fonte de renda, ampliando a pratica da economia solidaria nestas comunidades. Este trabalho tem como proposito realizar uma analise relativa a agricultura familiar, tendo como objetivo investigar o perfil socioeconômico dos membros da Associação dos o Produtores Agroecológicos do município de Monteiro, região do Cariri Ocidental da Paraíba. A metodologia utilizada nessa pesquisa foi do tipo quantitativa. Foram aplicados questionários para realizar a avaliação socioeconômica dos agricultores alem de conversas informais, no período de Julho de 2013. A produção agroecológica estudada e obtida via agricultura familiar e comercializada na feira local, com revendedores e atacadistas e em orgãos governamentais. Os resultados para a migração a esse tipo de comercio teve como motivo principal o baixo investimento inicial. E notável a estreita relação de solidariedade e confiança entre os membros da associação. A referida agricultura mostra-se como fator fundamental para a inclusão social.
Percepção dos estudantes da EJA sobre economia solidária.
Authors:   , da Silva Prata Amanda
Published: July 2023

O tema Economia Solidaria vem sendo cada vez mais discutido na atualidade. Este trabalho partiu de uma inquietação a respeito da discussão sobre Economia Solidaria nas escolas, mais especificamente nas salas de aula de EJA. Durante o curso de especialização em Educação de Jovens e Adultos com enfase em Economia Solidaria, na UFCG, Sumé/PB, foram discutidos amplamente os conceitos relativos a esta economia alternativa, sempre buscando estabelecer relações entre educação de jovens e adultos e economia como uma forma de modificar uma realidade social insustentável, gerada pelo atual sistema econômico: o Capitalismo. Entretanto, não se sabe como se da esta discussão nas escolas nem se de fato ela ocorre. Assim, buscou-se ao longo desta investigação identificar a percepção que os jovens e adultos, estudantes, tem sobre Economia Solidaria. Assim, o presente trabalho objetiva apresentar a importância de disseminar a perspectiva da Economia Solidaria nas escolas para alunos de EJA, visando oferecer uma nova visão a este publico, que tanto busca inserir-se no mercado de trabalho. Realizou-se uma pesquisa descritivo-exploratória, com abordagem qualitativa junto a estudantes de EJA de uma escola municipal do município de Monteiro - PB, e verificou-se que estes estudantes nunca ouviram falar sobre os princípios da Economia Solidaria, portanto, precisam conhecer a Economia Solidaria e assim disseminar esta nova economia que prega a igualdade, união, sustentabilidade e solidariedade.
Perfil socioeconômico dos moradores do Sitio Pitombeira: usuários de água do açude público Sumé-PB.
Authors:   , Carmen Melo de Queiroz Robéria
Published: July 2023

A escassez de água doce no mundo torna esse recurso um foco de interesses internacionais e de conflitos entre países. A água e um liquido tao precioso a ponto de despertar competições por seus poucos recursos hídricos. Essas disputas ocorrem desde as antigas civilizações, sendo um motivo de contendas e ate instrumento de guerra para muitos. Este trabalho estuda o potencial hídrico do agude publico Sumé, no município de Sumé - PB, e as possibilidades de crescimento econômico e melhoria de qualidade de vida dos moradores da bacia do agude, no Sitio pitombeira, a partir da água desse recurso hídrico. Teve como foco a importância do agude para os moradores desta localidade, as atividades que são desenvolvidas a partir desse manancial hidrográfico e sua representatividade para a economia desta população rural. A metodologia foi realizada a partir de visitas de campo e entrevistas com os membros da associação de moradores da bacia do agude do Sitio Pitombeira. Os resultados preliminares indicam que os moradores dessa região, que sobrevivem das atividades ligadas a agricultura, estão insatisfeitos pela baixa produção em decorrência da seca. Este e um problema que afeta tais loteiros, pois boa parte deles tem na agricultura a principal fonte de renda.
Características da economia solidária nas práticas da horta orgânica na Associação AMUABAS, no município de Sumé-PB.
Authors:   , Lucena Vilar Juliane
Published: July 2023

A economia solidária se apresenta atualmente como uma alternativa ao mundo do desemprego, com consciência ecológica e como uma forma de promover a igualdade social e econômica. Paulo Freire (1987) ratifica essa ideia quando afirma que representa algo de novo e esperançoso para o futuro da educação popular da América Latina e para uma nova ordem econômica mundial. A partir desta definição, este trabalhou objetivou identificar as características da Economia Solidária nas práticas da horta orgânica desenvolvida pela AMUABAS (Associação dos Moradores e Usuários de Águas da Bacia do Açude de Sumé), no município de Sumé - PB, enquanto instrumento de contribuição social e econômica para o individuo e para o meio no qual está inserido. Alguns elementos que ratificam tais características são elencados no decorrer deste trabalho, demonstrando como estas podem influenciar na realidade social de uma comunidade. A metodologia se utilizou do estudo de caso da citada Associação, tendo sido aplicados questionários diretamente com os integrantes e visitas in loco. Como resultado, observou-se que as características da economia solidaria inseridas nas práticas da associação beneficiam os associados que trabalham com a horta orgânica como fonte complementar da renda familiar enquanto dimensão econômica, de maneira autogestionária, de colaboração mútua e solidariedade entre os sujeitos. Neste sentido, a economia solidaria representa para esses associados uma opção de desenvolvimento econômico pessoal e coletivo, baseada na sustentabilidade.
MODELING OF THE CORIUM AND METALS – COOLERS INTERACTION IN A CORE CATCHER OF A LIGHT WATER REACTOR
Authors: Skakov M. K. , Baklanov V. V. , Toleubekov K. O. , Akaev A. S. , Bekmuldin M. K. , Gradoboev A. V.
Published: July 2023

The core catcher is one of the mandatory elements of the reactor safety system, which prevents the release of reactor core materials in a severe accident. The core catcher is steel vessel filled with sacrificial materials (SM) and forming a tank where a corium melt coming from the core is formed. The trap is a steel body filled with sacrificial materials (LM) and forming a vessel where a corium bath is formed coming from the core. The melt formed in the core catcher is cooled by heat removal to the cooling water through the shell of the steel vessel, as well as by water supplied directly to the surface of the melt after the dissolution process of the SM in corium (gravitational inversion). The delay in the water supply to the melt is associated with the features of the component structure of corium and its interaction with water (the formation of explosive hydrogen and the possibility of its detonation, as well as the threat of a steam explosion). However, a certain amount of time is spent on the implementation of gravitational inversion, and it is desirable to start the water supply to the melt immediately at the moment when the corium enters the core catcher due to the danger of the system going beyond the permissible limits (the beginning of boiling of uranium dioxide) due to decay heat in the corium. In this regard, the authors have an idea – to use a fusible metal for additional cooling of the surface of the corium in order to organize heat removal and reduce the temperature of the corium in the period before the end of the gravitational inversion process. The article presents the results of modeling the interaction of corium with candidate low-melting metals – coolers. The modeling was conducted using the ANSYS software package. As a result of the conducted work, the time for which each of the considered cooling metals will reach the points of phase transitions of melting and boiling is determined. The analysis of the results allowed us to draw appropriate conclusions about the possible practical implementation of the proposed method of cooling corium.
COMPARATIVE ASSESSMENT OF DIGESTION METHODS FOR SOIL SAMPLES DURING THE RADIOCHEMICAL DETERMINATION OF 239+240Pu
Authors: Salmenbayev S. Ye. , Kerimkulova Zh. U. , Zhamaldinov F. F. , Mustafina К. Т. , Pontak К. A. , Dauletbayeva Sh. M. , Senger L. I.
Published: July 2023

A great many nuclear tests of different types and yields were conducted at the Semipalatinsk Test Site (STS). That has lead to the formation of radioactively contaminated areas within it, which differed from one another in the pattern, levels and the isotopic composition. At the same time, technogenic radionuclides are oftentimes in the soil cover of STS in tightly bound and slightly soluble forms, which hampers their complete extraction from samples for a subsequent quantitative analysis. Typically, the extraction process is carried out in open systems using solutions of hydrofluoric acid (HF) and other mineral acids. However, this technique is time-consuming, requires a great many reagents and may result in the loss of elements to be assayed as well as in a possible cross contamination of samples. Autoclave digestion can be an alternative to acid digestion in open systems. This method, on the one hand, is devoid of the disadvantages inherent in open decomposition, on the other hand, it has an undoubted advantage, which consists in accelerating the decomposition process due to an increase in the boiling point of acids. As demonstrated by experimental findings, measurements of 239+240Pu activity concentration in soil samples obtained from a complete acid and autoclave decomposition, in most cases, agree well enough with one another (the existing discrepancies are within the measurement error). Analysis of a radioactivity reference standard using the autoclave decomposition technique showed satisfactory results. The deviation from a certified value was in the order of 5%.
In-vitro assessment of staphylococci biofilms formed under biologically-relevant conditions and correlation to the biofilm genotype
Authors: Wahman Shaimaa , Emara Mohamed , M. Shawky Riham
Published: July 2023

Staphylococci have been implicated in chronic device-related infections due to their ability to form resistant biofilms on implanted medical devices. For a long time, two different mechanisms of biofilm formation were known in Staphylococcus spp., the ica-dependent biofilms in MSSA and CoNS and the ica-independent biofilms in MRSA. Recently, a new fibrin-based biofilm phenotype was identified when S. aureus isolates were allowed to construct biofilms in biologically-relevant conditions using plasma-coated surfaces and RPMI-1640 for biofilm development (RPMI-1640/Pl). In this study, 140 staphylococci clinical isolates (91 MRSA, 27 MSSA and 22 CoNS) were tested for biofilm formation, biofilm formers were selected and used to scrutinize the ability of RPMI-1640/Pl to support staphylococci biofilm formation. Results showed that, in RPMI-1640/Pl, the biofilm formation abilities of MRSA and MSSA isolates were non-significantly different compared to those formed in TSB and BHI, (Kruskal Wallis test, P = 0.3275 and 0.466 for MRSA and MSSA isolates, respectively). However, a significantly different biofilm formation ability was observed regarding the tested CoNS isolates (ANOVA test, P = 0.0006). Furthermore, biofilm formation in RPMI-1640/Pl under different incubation conditions was tested, and among the tested conditions, 48h of static incubation showed significantly elevated biofilm for both MRSA and MSSA. Finally, PCR was used to detect genes implicated in biofilm formation, and the genotypes were correlated to the biofilm formation ability in different tested conditions. In contrast to ordinary media, biofilm formation by staphylococci in RPMI-1640/Pl was positively correlated to coa, fnbA, fnbB and clfB.
Formulation and Evaluation of Polyherbal-Spirulina Based Conditioning and Antioxidant Shampoo
Authors: G Ayyappadasan , S Rubavathi , S Kanimozli
Published: July 2023

Herbal shampoos are cosmetics made up of traditional ayurvedic herbs used for cleaning the hair, and scalp as that regular shampoo. The aim of the present study is to formulate a polyherbal-spirulina based conditioning and antioxidant shampoo and to assess its physiochemical function that emphasizes safety, efficacy, elimination of harmful chemical ingredients, and substitution with safe natural ingredients in different proportions. Evaluation of physicochemical properties, antioxidant activity, and toxicity analysis of herbal and spirulina based shampoo done based on parameters of physicochemical properties such as visual inspection, pH, wetting time, % of solid contents, foam volume, and stability, dirt dispersion, and conditioning performance was performed. The formulated shampoo was clear, attractive, and appealing. It showed good cleansing and detergency, good foam stability, and excellent conditioning performance.
Botirkhon Valikhudjaev
Authors:   Alisher Navo'i Tashkent State university of Uzbek language and literature, Sirojiddinov Shuhrat
Published: July 2023

As a symbol of high respect for the sage of Eastern classical literature, a great expert in Navoi studies, a humble person and a mentor, and his great services in the development of the science of literature, this modest index, which provides information about a meaningful life path, exemplary scientific-mentoring and public activities was found necessary to present to the dear fans of the scientist
Postoperative course of cerebrospinal fluid diversion in the setting of leptomeningeal disease: a systematic review, meta-analysis, and meta-regression with an illustrative case
Authors: Lu Victor
Published: July 2023

Join Dr. Randy D'Amico and Dr. Jason Sheehan of the Journal of Neuro-Oncology for a discussion with Dr. Victor Lu from the University of Miami Miller School of Medicine about his latest journal article on the postoperative course of cerebrospinal fluid diversion in the setting of leptomeningeal disease.
L’attuazione del Reddito di cittadinanza vista dal sistema dei servizi: risultati raggiunti e sfide future
Authors: D'Emiliano Matteo , Di Giampaolo Alessandra , Ferri Grazia , Natoli Gabriella , Ranieri Cristiana , Tagliavia Claudia , Giuliano Giovannina Assunta
Published: July 2023

Il paper presenta le principali evidenze della seconda Indagine dedicata al sistema dei servizi di welfare che a livello locale hanno dato attuazione alle misure di contrasto alla povertà, prima ReI (Reddito di inclusione) e successivamente RdC (Reddito di cittadinanza). Nel 2022, sono stati coinvolti nell’Indagine i referenti di oltre 1000 tra ATS (Ambiti territoriali sociali) e CPI (Centri per l’impiego), nonché un campione rappresentativo di oltre 2.000 Servizi sociali comunali (SSC), ottenendo complessivamente una copertura ancora migliore della prima edizione. Il lavoro di ricerca mette in risalto come a fronte di difficoltà attuative ancora presenti e riguardanti la capacità di dialogo e di implementazione dei sistemi informativi dedicati e risorse umane disponibili in aumento ma ancora non sufficienti, il sistema dei servizi ha iniziato a muoversi in maniera più integrata, sfruttando le risorse economiche a disposizione e costruendo un migliore rapporto con l’utenza. La strada da compiere è ancora molta, ma il percorso sembra avviato e non va ostacolato.
Monkeypox in Liver Transplant Patient
Authors: Genzini Tércio , Almeida Thais Natália de , Rodrigues Marina Guitton , Figueiredo Sabrina Rodrigues de , Marzinotto Maira Andrade Nacimbem , Fonseca Luís Edmundo Pinto da , Stucchi Raquel Silveira Bello , Rodriguez Tomas Navarro , Santos Regina Gomes dos , Perosa Marcelo
Published: July 2023

Monkeypox (MKP) is a zoonosis caused by a DNA virus belonging to the Orthopoxvirus genus in the Poxviridae family and was isolated for the first time in Denmark, in 1958. In 1970, the first case in humans was described in the Democratic Republic of Congo and, since then, it has spread with inter-human dissemination and, in July 2022, the WHO declared a state of health emergency. Its clinical presentation is similar to that of smallpox, with skin eruptions that evolve as macules, papules, vesicles, pustules and crusts. The first case in a transplanted patient was described in Thailand, in June 2022, in a bone marrow transplanted patient. In this report, we describe the case of MKP in a patient in the postoperative period of liver transplantation. We also discuss clinical aspects of this situation, which is still little known among the transplanter community.
المكافحة الكيميائية للفطر Rhizoctoni solani المعزول من بذور الفاصوليا
Authors: Abdulla Najah S.
Published: July 2023

أجريت هذه الدراسة خلال الموسم الزراعي 2006-2005 بالجبل الأخضر واستخدم في هذه التجربة خمس مبيدات فطرية لمكافحة فطر Rhizctoni solani ، المعزول من بذور الفاصوليا صنف محلي والذي أبدا أعلى معدلات إصابة في تجارب القدرة المرضية . أجريت المكافحة الكيميائية في المعمل باستخدام خمس مبيدات فطرية (Benlate – Captan – Rovral – Rizolex – Vitavax) بسبع تركيزات لكل مبيد (0 ، 25 ، 50 ، 100 ، 200 ، 400 ، 800 جزء في المليون) ، وتم أخذ متوسط النمو الطولي للفطر على أربع فترات وتوضح النتائج تثبيط الفطر R. solani بعد 192 ساعة عند التركيز 25 جزء في المليون من المبيد البنليت ويثبط نمو الفطر عن التركيز 200 جزء في المليون من المبيد كابتان ، وقد لوحظ وجود فروق معنوية لتداخل بين الفترات والمبيدات والتراكيز . وتشير النتائج إلى تأثير معاملة بذور الفاصوليا محلي بالمبيدات الفطرية السابقة لمكافحة فطر R. solani حيث يلاحظ أن مبيد الريزوليكس أعطى أقل نسبة موت للبذور قبل الإنبات وأقل نسبة موت بعد الإنبات يتبعه مبيد الروفرال ثم مبيد البنليت والكابتان وأخيراً مبيد الفيتافاكس ، وتشير النتائج إلى وجود فروق معنوية بين المعاملات وفورق معنوية بين الزمن وفروق معنوية بين الزمن والمعاملات .
دراسة لطفيلي كريبتوسيوريديوم في الأطفال والعجول
Authors: Jameil Alani Abdul Aziz
Published: July 2023

شملت هذه الدراسة الكشف عن طفيلي كريبتوسبوريديوم (Cryptosporidium) والعثور على البيوض المتكيسة في عينات البراز المستخلصة من الأطفال والعجول التي تعاني من إسهال مستمر وغير منقطع وذلك باستخدام تقنية صبغتي (ZN) Zeihl-Nelson و (AO) Auramine O .

بلغت نسبة الإصابة بهذا الطفيلي 14.3% و 26.56% في كل من الأطفال والعجول على التوالي في المناطق الريفية وكانت أعمار الأطفال المصابين بحدود سنة واحدة فأقل بينما كانت أعمار العجول المصابة قد امتدت لأكثر من سنة واحدة، وعثر على البيوض المتكيسة في البراز في كل من الأطفال والعجول على حد سواء بنسب متكافئة باستعمال الصبغتين .

بلغت قياسات البيوض المتكيسة للطفيلي المذكور وهي 4.8 × 5.1 مايكرون .
دراسة الجودة الميكروبيولوجية لخليط التوابل المعروف محلياً (بالحرارات) وذلك بمحلات بيع التوابل بمدينة طرابلس
Authors: Omar Abu Khabta Salah , احتاش محمد سليمان
Published: July 2023

استهدفت هذه الدراسة حوالي (100 عينة) من خليط التوابل الجاهزة والمعروفة محليا باسم الحرارات . والتي تتكون من الفلفل الأسود ، القرفة ، القرنفل ، الزنجبيل ، الخولنجان وجوزة الطيب .

حيت تم دراسة العدد الكلي للبكتريا الهوائية ، بكتريا القولون ، البكتريا المتجرثمة المحبة للحرارة العالية وأعداد الخمائر والاعفان ، بالإضافة لدراسة بعض الأنواع الممرضة والمتمثلة في بكتريا السالمونيلا (Salmonella) ، الايشيريشيا كولاي (E.coli) ، الأيروموناس (Aeromonas) ، وبكتريا الباسلس سيريوس (Bacillus cereus) .

نتائج هذه الدراسة أشارت إلى مستويات عالية من التلوث بالاعداد الكلية للبكتريا الهوائية وصلت إلى 4.8 × 107 CFU / جرام ، وبمتوسط عام 2.4 × 106 CFU / جرام ، بينما كان متوسط أعداد بكتريا القولون 124.2 MPN/ جرام ، أما البكتريا المتجرثمة المحبة للحرارة العالية فقد كانت بمتوسط 1.9 × 104 CFU / جرام . وكانت أعداد الخمائر والاعفان في متوسط عام  1.1 × 104   CFU/جرام .

   مستويات من 12% ، 2% تم عزلها لكل من الإيشيريشيا كولاي (E.coli)  والسالمونيلا (Salmonella) على التوالـي ، بكتريـا الايروموناس (Aeromonas) لم تتواجد في كل العينات المختبرة . كذلك فإن النتائج قد أشارت إلى أعداد تجاوزت 103 بالنسبة لبكتريا الباسلس سيريوس (Bacillus cereus) .

هذه النتائج قد تكون موشرا لحدوث المرض أو التسمم الغذائي بواسطة هذه الممرضات خاصة وأن الحرارات غالبا ما تستعمل في الوجبات الليبية بعد الطهو مما يعطي فرصة لتكاثر هذه الأنواع وخصوصا في الأماكن التي يتم تجهيز الطعام مسبقا مثل المطاعم والفنادق والمستشفيات والمخيمات الشبابية وغيرها .
الأجسام الغريبة غير العادية التي تسبب انسداد في المريء للكلاب
Authors: الحمرى خالد مسعود , حجازى أشرف عبد الحميد
Published: July 2023

في هذا البحث تم وجود الجسم الغريب في أحد الكلاب عمرها عام وهو عبارة عن سلك معدني طوله حوالي 20سم وتم علاجه بالتدخل الجراحي وفتح المريء في الجزء العنقي حيث وجد بروز سلك من التجويف الفمي وكان عمره سنة . وتم التعامل مع أحد الكلاب بإخراج عظمة على شكل حرف T من المريء بعد فتحه في الجزء الرقبي وأيضاً مع ثلاث حالات تم فيها إخراج الجسم الغريب من التجويف الفمي . الأجسام الغريبة في المريء عادة تسبب الكثير من المشاكل في الكلاب وغالباً ما تأتي معظم الأجسام الغريبة في المريء في الكلاب من ابتلاع عظام أو أجزاء منها وغيرها مثل شوك السمك ، كرات ، لعب وأجسام عدنية حادة ، عود خشب ، ولم يوجد أي مضاعفات في كل الحالات التي تم التعامل معها .
تأثير فصول السنة على كرات الدم الحمراء وبعض خصائصها من ولادة النوق مباشرة إلى سنة تحت الظروف الرعوية (الصحراوية) الليبية
Authors: الطيف طارق عبد السلام سالم
Published: July 2023

أجريت الدراسة في وسط ليبيا منطقة الهيشة على ثلاث نوق تحت ظروف الرعي لتحديد أثر الشهور وفصول السنة على كرات الدم الحمراء وبعض خصائصها في دم النوق من الولادة إلى سنة بعدها .

أخذت عينات الدم شهريا ماعدا شهري الربيع (مارس) والكانون (ديسمبر) . وتم  قياس كل من (RBC) و(PCV) و(Hb) و(MCH) و(MCV) وMCHC)) . أوضحت النتائج أن القياسات    (RBC) و(PCV) و(Hb) مرتفعة معنويا (0.05 p<) في فصل الربيع. (MCV) مرتفع معنويا (0.05 p <) خلال فصلي الشتاء والصيف . ولم يلاحظ فروق معنوية بين الفصول لقياس (MCH ) .

خلال موسم التزاوج أرتفع معنويا (0.05 p <) قياس (RBC) و (PCV) و (MCV) . عند الولادة أرتفع معنويا (0.05 p<) (MCH) و (MCV) ، ثم حدث انخفاض خلال الشهر الأول لقياس (Hb) و (MCH) و (MCV) و MCHC)) نظراً لإنتاج الحليب . خلال الشهر الثالث ارتفع (RBC) وانخفض (MCV) معنويا (0.05 p>) ، ثم خلال الشهر الثامن أرتفع MCHC)) وانخفض (PCV)معنويا .
تأثير شهور وفصول السنة على هرمونات الدرقية والبروتين الرابط للثيروكسين في دم النوق من الولادة إلى سنة تحت الظروف الرعوية الطبيعية (الصحراوية) الليبية
Authors: الطيف طارق عبد السلام سالم
Published: July 2023

أجريت الدراسة على ثلاثة نوق تحت ظروف الرعي الصحراوية في مشروع الهيشة وسط ليبيا لدراسة أثر شهور وفصول السنة على هرمونات الدرقية و TBG من الولادة وإلى سنة بعدها . تم أخذ عينات الدم شهريا خلال السنة ما عدا شهري مارس وديسمبر .

            ارتفع هرمون (T4)  معنويا (0.05 p<) خلال فصلي الشتاء و الربيع و خلال موسم التزاوج ومن الولادة إلى الشهر الثالث . مستوى (F-T4) كان مرتفعا معنويا (0.05 p<) في الخريف ولم يكن هناك فروق معنوية بين الشهور .

ارتفع هرمون (T3) معنويا (0.05 p <) خلال الشتاء والخريف وأنخفض بعد الولادة مباشرة ليرتفع من الشهر السادس إلى الثامن . مستوى (F-T3) لم يكن مختلفا معنويا خلال الشهور ولا بين الفصول ، ولقد لوحظ وجود علاقة عكسية بين تركيز (T3) و (F-T3) .

ارتفع تركيز (TBG) معنويا (0.05 p <) خلال فصل الخريف وخلال الشهر التاسع والعاشر وانخفض معنويا (0.05 p<)  بعد الولادة وإلى الشهر الثالث .
تأثير التسميد النيتروجيني والكثافة النباتية على إنتاجية وجودة بذور البامية
Authors: ابراهيم ابراهيم الزاعل , بن سعود عادل علي
Published: July 2023

أجريت تجربتان حقليتان خلال الموسم الصيفي لعامي 2006 و 2007 بالمزرعة التجريبية لقسم البستنة ، كلية الزراعة ، جامعة عمر المختار ، بمدينة البيضاء – شعبية الجبل الأخضر ، بهدف دراسة خمسة مستويات متدرجة من النيتروجين (00 ، 70 ، 115 ، 160 ، 205 كجم / هكتار) وأربعة مسافات زراعة (20 ،30 ، 40 ، 50 سم)  بالإضافة إلى تأثير التفاعل بين المستويات المختلفة لهذين العاملين علي إنتاجية وجودة بذور البامية ، صنف كليمسون اسباينلس .

ويمكن تلخيص النتائج المتحصل عليها في النقاط الآتية :

أدى تسميد نباتات الباميا بمعدلات متزايدة من النيتروجين حتى 205 كجم / هكتار إلى زيادات متدرجة ومعنوية في كل من المحصول الكلى للبذور وإنتاجية النبات الواحد من البذور ، عدد الثمار الناضجة / نبات ، الوزن الرطب للثمرة الناضجة ، بالإضافة إلى محتوى الثمرة من البذور بالوزن ، وذلك في عامي الدراسة ، وطول القرن الناضج ونسبة التصافي في الموسم الأول والثاني ، على الترتيب . ومع ذلك ، لم يكن للمعدلات المختبرة من النيتروجين تأثيراً معنوياً على كل من وزن مائة بذرة ، النسبة المئوية لإنبات البذور وقطر القرن الناضج ، كما لم يختلف تأثير أعلى ثلاث معدلات من النيتروجين على طول القرن في الموسم الأول .

لم يكن لمسافات الزراعة المدروسة تأثيراً معنوياً على كل من وزن مائة بذرة ، النسبة المئوية لإنبات البذور وطول وقطر القرن الناضج ، وذلك في عامي الدراسة ، وعدد البذور / ثمرة وقطر الثمرة الناضجة ، في الموسم الأول والثاني ، على التوالي ، بينما أدى خفض المسافة بين النباتات من 50 حتى 20 سم ، إلى زيادة تدريجية ومعنوية في المحصول الكلي من البذور ولكن انخفضت كمية البذور وعدد الثمار التي ينتجها النبات الواحد .

الزراعة على المسافة الضيقة (20 سم) مع التسميد بمعدل 205 كجم نيتروجين ، أدى إلى زيادة معنوية في المحصول الكلي من البذور ، بينما أعلى زيادة معنوية في إنتاجية النبات من القرون الناضجة والبذور ، أمكن الحصول عليها عند الزراعة على مسافة 40 أو 50 سم مع التسميد بمعدل 160 أو 205 كجم نيتروجين / هكتار ، وذلك في عامي الدراسة . ومن ناحية أخرى لم يكن للتفاعل الحالي تأثيراً معنوياًَ على وزن مائة بذرة والنسبة المئوية لكل من إنبات البذور ونسبة التصافي .

ممكن التوصية بأن زيادة الكثافة النباتية (62500 نبات/هكتار) مع التسميد النيتروجيني بمعدل 205 كجم نيتروجين / هكتار ، يمكن اعتبارها المعاملة الأفضل والاقتصادية لإنتاج أعلى محصول من البذور الجافة للباميا ، وبجودة عالية ، وذلك تحت الظروف البيئية السائدة في منطقة الجبل الأخضر ، والمناطق المشابهة الأخرى .
دراسات فسيولوجية ونسيجية على تأثير مستخلص نبات المرسين على الغدة الدرقية في الجرذان
Authors: الزاعل نورا إبراهيم , بوالحاج عبد السلام موسى , الغرباوي سعد محمد سعد
Published: July 2023

استهدفت هذه الدراسة اختبار تأثير المستخلص الإيثانولي المائي لأوراق نبات المرسين على الغدة الدرقية وهرموناتها في الجرذان البيضاء ، حيث استخدمت جرعة بتركيز 2 جرام/كجم وأعطيت للجرذان عن طريق الفم . وشملت هذه الدراسة عدد 43 جرذ قسمت إلى ثلاث مجموعات ، المجموعة الأولى تم ذبحها بعد 7 أيام والمجموعة الثانية تم ذبحها بعد 14 يوم من بداية المعاملة ، أما المجموعة الثالثة فقد قسمت إلى 5 مجاميع صغيرة تم ذبحها بعد 2 و 4 و 8 و 12 ساعة من بداية المعاملة ، واشتملت كل مجموعة على بعض الجرذان كمجموعة ضابطة .

بين الفحص المورفولوجي في هذه الدراسة ظهور بعض الأعراض المرضية على الجرذان المعاملة بالمستخلص تمثلت في حدوث نزف في الفم والأنف وعند الأطراف ، كما لوحظ على هذه الحيوانات الهزال والتعب وفقدان الشهية للأكل بعد حوالي 72 ساعة من بداية المعاملة ، إضافة إلى حدوث انخفاض معنوي في وزن الجرذان . وقد أظهرت نتائج الاختبارات الهرمونية للمصل حدوث ارتفاع معنوي في مستوى هرمونات الغدة الدرقية والهرمون المحفز لإفرازها في الجرذان المعاملة بالمستخلص لمدة أسبوع وأسبوعين .

وعلى مستوى الفحص النسيجي ازدادت الجريبات الدرقية زيادة ملحوظة في الحجم ، وخاصة الجريبات المتواجدة في أطراف الغدة . وامتلأت العديد من الجريبات بتجمعات من المادة الغروية غير المتجانسة التي ازدادت الفجوات عند أطرافها ، كما ظهرت بعض الخلايا الإلتهابية داخل المادة الغروية لبعض الجريبات . وأصبحت الجريبات غير منتظمة الحدود ، وظهرت الخلايا الجريبية بصورة منضغطة وذات أنوية مسطحة ، إضافة إلى وجود بعض الجريبات غير محددة المعالم .