bluuebunny/crossref_metadata_2025 huggingface dataset:
Khảo sát đặc điểm hình thái, giải phẫu và hoạt tính kháng khuẩn của cúc tần (Pluchea indica (L.) Less.) và nam sài hồ (Pluchea pteropoda Helms.)
Authors: Phùng Thị Hằng , Nguyễn Ngọc Phương Thảo , Nguyễn Nguyền Trân , Phan Thành Đạt , Nguyễn Phúc Đảm , Đỗ Tấn Khang , Nguyễn Đức Độ , Nguyễn Trọng Hồng Phúc
Published: May 2022

Cúc tần (Pluchea indica) và nam sài hồ (Pluchea pteropoda) là hai loài cùng chi. Các nghiên cứu về P. indica cho thấy đây là nguồn dược liệu quý. Ở Đồng bằng sông Cửu Long, P. pteropoda mọc phổ biến khu vực ngập mặn, thường bị nhầm lẫn với P. indica. Nghiên cứu này thực hiện để phân biệt và so sánh tiềm năng dược liệu của P. indica (thu tại khu vực nước ngọt) và P. pteropoda (thu tại khu vực nước mặn) thông qua khảo sát các đặc điểm hình thái, cấu trúc giải phẫu và hoạt tính kháng khuẩn. Trình tự DNA ở vùng ITS của hai loài được xác định để phân loại di truyền. Các đặc điểm hình thái lá được mô tả và so sánh. Mẫu thân và lá được cắt mỏng và nhuộm kép để quan sát cấu trúc giải phẫu. Khả năng kháng khuẩn được đánh giá bằng phương pháp khuếch tán trên đĩa thạch với hai loại cao chiết (nước và ethanol) trên 6 dòng vi khuẩn phổ biến. Kết quả cho thấy vùng trình tự ITS của hai loài chỉ khác nhau ở vị trí 76 trong tổng số 468 nucleotide được so sánh. Có thể phân biệt hai loài thông qua hình thái và kích thước của lá. Cấu trúc giải phẫu của P. pteropoda cho thấy sự thích nghi với môi trường ngập mặn. Cao chiết nước của P. indica có khả năng kháng khuẩn tốt nhất. Cao chiết nước hoặc cao chiết ethanol của P. pteropoda cũng kháng tốt một số dòng vi khuẩn nghiên cứu.
Dapagliflozin and Kidney Outcomes in Hospitalized Patients with COVID-19 Infection
Authors: Heerspink Hiddo J.L. , Furtado Remo H.M. , Berwanger Otavio , Koch Gary G. , Martinez Felipe , Mukhtar Omar , Verma Subodh , Gasparyan Samvel B. , Tang Fengming , Windsor Sheryl L. , de Souza-Dantas Vicente Cés , del Sueldo Mildren , Frankel Robert , Javaheri Ali , Maldonado Rafael A. , Morse Caryn , Mota-Gomes Marco , Shemin Douglas , Silva Osvaldo Lourenço , Tognon Alexandre Pereira , Twahirwa Marcel , Buenconsejo Joan , Esterline Russell , Oscarsson Jan , Ambery Philip , Langkilde Anna Maria , Kosiborod Mikhail N.
Published: May 2022

Background and objectives

Patients who were hospitalized with coronavirus disease 2019 (COVID-19) infection are at high risk of AKI and KRT, especially in the presence of CKD. The Dapagliflozin in Respiratory Failure in Patients with COVID-19 (DARE-19) trial showed that in patients hospitalized with COVID-19, treatment with dapagliflozin versus placebo resulted in numerically fewer participants who experienced organ failure or death, although these differences were not statistically significant. We performed a secondary analysis of the DARE-19 trial to determine the efficacy and safety of dapagliflozin on kidney outcomes in the overall population and in prespecified subgroups of participants defined by baseline eGFR.

Design, setting, participants, & measurements

The DARE-19 trial randomized 1250 patients who were hospitalized (231 [18%] had eGFR <60 ml/min per 1.73 m2) with COVID-19 and cardiometabolic risk factors to dapagliflozin or placebo. Dual primary outcomes (time to new or worsened organ dysfunction or death, and a hierarchical composite end point of recovery [change in clinical status by day 30]), and the key secondary kidney outcome (composite of AKI, KRT, or death), and safety were assessed in participants with baseline eGFR <60 and ≥60 ml/min per 1.73 m2.

Results

The effect of dapagliflozin versus placebo on the primary prevention outcome (hazard ratio, 0.80; 95% confidence interval, 0.58 to 1.10), primary recovery outcome (win ratio, 1.09; 95% confidence interval, 0.97 to 1.22), and the composite kidney outcome (hazard ratio, 0.74; 95% confidence interval, 0.50 to 1.07) were consistent across eGFR subgroups (P for interaction: 0.98, 0.67, and 0.44, respectively). The effects of dapagliflozin on AKI were also similar in participants with eGFR <60 ml/min per 1.73 m2 (hazard ratio, 0.71; 95% confidence interval, 0.29 to 1.77) and ≥60 ml/min per 1.73 m2 (hazard ratio, 0.69; 95% confidence interval, 0.37 to 1.29). Dapagliflozin was well tolerated in participants with eGFR <60 and ≥60 ml/min per 1.73 m2.

Conclusions

The effects of dapagliflozin on primary and secondary outcomes in hospitalized participants with COVID-19 were consistent in those with eGFR below/above 60 ml/min per 1.73 m2. Dapagliflozin was well tolerated and did not increase the risk of AKI in participants with eGFR below or above 60 ml/min per 1.73 m2.
Análisis estadístico sobre el consumo de refrescos y sus implicaciones sociales y económicas en Sinaloa, México. Un caso de estudio para estudiantes universitarios de pregrado
Authors: Sosa Carrillo Cruz Evelia , Mancera González Omar
Published: May 2022

En el curso de estadística es relevante que el estudiante comprenda que las herramientas matemáticas aprendidas y usadas teóricamente, se pueden aplicar en la vida cotidiana, empresarial, desarrollo social, entre otras áreas. Particularmente, estudiando situaciones en donde hay incertidumbre, a través de la observación y análisis de experimentos aleatorios. En educación matemática, la enseñanza del análisis de datos es un objeto de estudio importante, debido a la relevancia de encontrar mejores métodos y procedimientos que permitan en los estudiantes el desarrollo del pensamiento estadístico. Por otro lado, el trabajo de estudiantes universitarios con análisis de datos permite que puedan analizar una situación real a través de la inferencia estadística. En este estudio, pretendemos que los estudiantes hagan una reflexión acerca del problema del consumo de refresco con base en un estudio exploratorio utilizando estadística inferencial.
Editorial
Authors: Jiménez Zaldivar María Elena
Published: May 2022

En esta entrega, RDP Revista Digital de Posgrado ofrece dos perspectivas teóricas en su sección Artículos, en voz de la Economía y el Derecho: “Minsky: Economic Cycle, Financial Instability, and Economic Policy” y su correspondiente traducción al español, “Minsky: Ciclo económico, inestabilidad financiera y política económica”, así como el trabajo “Los principios de interdependencia y unidad congruente en la investigación jurídica pluridimensional”. La sección Ensayos incluye el texto: “Perspectivas de ciudadanía como repertorios para la participación, hacia una visión complementaria”; y la sección Reseñas Bibliográficas recomienda los libros: Educación global para mejorar el mundo. Cómo impulsar la ciudadanía global desde la escuela; y Pasado y presente de la revocación del mandato en México.
Educación global para mejorar el mundo. Cómo impulsar la ciudadanía global desde la escuela
Authors: Juárez Lorencilla Leticia
Published: May 2022

En general, la obra de Fernando Reimers es un aporte a la educación global, entendida esta como el conjunto de prácticas, conocimientos y procesos que contribuyen a que todos los seres humanos desarrollen más habilidades para la vida. Dicha propuesta educativa es de gran trascendencia, porque ofrece soluciones a ciertos desafíos globales que se han agudizado en décadas recientes, como el daño ambiental. Para ello, intenta crear conciencia de que vivimos en un sistema interdependiente y que nuestras acciones repercuten en los demás y en todo lo que les rodea, por lo que debemos interrelacionarnos de manera respetuosa y colaborativa. Este enfoque busca que los estudiantes se hagan cargo de algunas responsabilidades que los formarán como ciudadanos proactivos y participativos, en tanto que el compromiso de los docentes es diseñar estrategias novedosas para lograr una mejora sustancial en el proceso de enseñanza aprendizaje.
Pasado y presente de la revocación del mandato en México
Authors: Mendoza Velázquez Diana Vianney
Published: May 2022

Hablar de la revocación de mandato en México implica recorrer el pasado, la historia de esta figura en nuestro país: desde 1938, con la normativa subnacional (antecedente que permitió que la Suprema Corte de Justicia de la Nación estudiara su constitucionalidad), hasta el presente, para llegar a reflexiones que contribuyan a anticipar el futuro inmediato de la revocación, como un reto para el legislador y el aparato jurisdiccional.
The Urgency of Open Application Programming Interface Standardization in the Implementation of Open Banking to Customer Data Protection for the Advancement of Indonesian Banking
Authors: Billiam Billiam , Abubakar Lastuti , Handayani Tri
Published: May 2022

Open banking with Application Programming Interface technology (open API) is an initiative that aims to streamline the payment system in Indonesia. Open API allows banks to integrate their systems with fintech and e-commerce by disclosing customer transaction data. This study aims to reveal the urgency of open API standardization in the Indonesian implementation of open banking. The study employed a normative juridical approach to secondary data. The data includes primary, secondary, and tertiary legal materials. It also used a qualitative normative data analysis method. It concludes that before the establishment of the National Standard for Open API Payment (SNAP), the process of sharing data among banks and fintech and/or e-commerce was unstandardized. It was only based on agreement among parties. Indonesian banks have different-various standards of the open API that could affect customer data protection. According to the Regulation of the Financial Service Authority Number 12/POJK.03/2018, the relationship between banks and fintech and/or e-commerce in the administration of digital banking services that is based solely on agreements among parties is not strong enough. OJK indeed presents as a supervisory agency. However, the parties will eventually return to an agreement among themselves. In contrast to the Regulation of the Financial Service Authority, the Regulation of Members of the Board of Governors, which is the legal basis for SNAP, provides standards that both service providers and service users must comply with. However, the implementation of SNAP-based open APIs still needs the readiness of personal data protection regulations.
Students' self-education in distance education: sociological research perspectives
Authors:   The Far-Eastern Institute of Management – branch of RANEPA, Krivonosova L. A.
Published: May 2022

The article presents theoretical and empirical analysis of the significance of distance learning system in solving the problems of self-education of students' personality, reflecting the sociological aspects of the study. It substantiates the significance of DLS in the long term as a learning platform and as a component of a mixed model, which, in the long term, involves a combination of full-time and distance forms of higher education. The positive and negative aspects affecting the formation of self-developing personal attitudes in the process of using distance learning technology are revealed. The conceptual provisions of formation of methodological basis of sociological research processes of self-education of students are offered. The research problem focused on the use of distance form of higher education as a factor forming skills of self-development, through the implementation of procedures of self-education, which is considered through the totality of its three types: intellectual, spiritual, physical is concretized. The structural model of sociological research indicators developed on the basis of objective-subjective paradigm and structural-functional analysis, where the set of objective indicators is designed to identify external factors and substantiate their impact on the self-development of students' personality, is presented. Subjective indicators, within the framework of the research model, diagnose the existing trends and form promising directions of development of self-education processes and its motivations in the context of distance learning. Recommendations are formulated, which will contribute to the formation of systematized scientific and methodological positions in the development of programs of complex sociological research, collection, processing, analysis and use of the obtained information.
Increasing interest in modern Russian literature and literary language as an element of civil position generation: analysis of regional practice
Authors:   The Far-Eastern Institute of Management – branch of RANEPA, Kradozhen-Mazurova E. M.
Published: May 2022

he article is devoted to the role of the Russian literary language as the state language of the Russian Federation in the formation of civil position, education of youth in the Far East. The author draws special attention to the importance of increasing interest in the modern Russian literature and the literary language as elements of familiarity with the culture of the country and region in the process of training managerial personnel. On the example of a brief analysis of results of the unified state exam in the Russian language, the author shows the problems of insufficient acquaintance of students with the exemplary literary texts demonstrating the wealth of the Russian language; emphasis was placed on the need to increase attention to the education of sense of the native language and high-quality Russian speech, including by increasing attention to the works of the best regional authors. The author of the article pays special attention to contribution of the Far-Eastern poets and writers to development of the modern literary language. Relying on the regional practice, the value of a number of the Far-Eastern literary journals and competitions for formation of positive image of the region is shown in this article. Example of the project of the Khabarovsk Tsaryovsk readings «Tsaryov. Khabarovsk. Russia» is presented, within which on the example of research of creativity of the specific author it is shown that attention to a native word, to culture help to bring up the youth and future heads of the region.
Conceptual approaches to the formation of conditions for favorable entrepreneurial climate of economic entities of the consumer market of the Khabarovsk territory
Authors:   The Far-Eastern Institute of Management – branch of RANEPA, Basova S.N. , Mazankova T. V. ,   The Far-Eastern Institute of Management – branch of RANEPA, Toropova T. A. ,   the Ural institute of management – branch of RANEPA
Published: May 2022

Development and active support of entrepreneurship, including the regional entrepreneurship, is a priority task of the long-term socio-economic development of the Russian Federation. Due to the wide territorial (administrative) differentiation of the conditions in which business entities carry out their activities, the expediency of using different mechanisms of influence on business entities in different regions is obvious. In this article the entrepreneurial climate of the region is understood as the opportunities and conditions for doing business and achieving its goals that are common to all or most entrepreneurs operating in a particular territory. The authors analyze the entrepreneurial climate of the Khabarovsk territory because of the interaction of objective (geographical features of the region, the level of development of the territory, natural conditions and resources, population and settlement, structure, level of development of production, non-production, and «infrastructure» spheres) and subjective factors (purposeful activity of state and municipal authorities and management). The assessment of the business climate in the Khabarovsk territory is supplemented by the results of a survey of entrepreneurs, including those with experience in stopping entrepreneurial activity. Based on a comprehensive assessment, conceptual approaches to the formation of conditions for a favorable business climate of economic entities of the consumer market of the Khabarovsk territory are formulated
Assessment of the impact of demographic policy to reduce mortality (using the example of the Far-Eastern federal district)
Authors:   The Far-Eastern Institute of Management – branch of RANEPA, Bulanova M. A.
Published: May 2022

n the Russian Federation preservation of the population is one of the main strategic tasks. Two demographic processes affect the safety of the population - fertility and mortality. In this article, the author considers assessment of the impact of demographic policy on the reducing mortality. Emphasis is placed on comparing the targets set by the federal projects with the actual mortality rates on the example of the Far-Eastern federal district. The assessment was carried out over the period of three years, two years of which the federal projects are implemented on the following indicators: mortality of the population of working age, mortality of the population from diseases of the circulatory system and neoplasms. The impact of population policies to reduce mortality is low, as the targets lag behind the actual values in terms of mortality of the working-age population and mortality from diseases of the circulatory system. Life expectancy of the population, as the final indicator of mortality reduction, does not show growth in all subjects of the Far-Eastern federal district, the COVID-19 pandemic has a certain effect on the decrease in this indicator. According to the author, it is necessary to adjust the measures provided by the federal projects to achieve the targets, as well as revalue the targets taking into account the current situation in the constituent entities of the Russian Federation.
Networking of secondary vocational education organizations in the region: opportunities and prospects
Authors:   The Far-Eastern Institute of Management – branch of RANEPA, Baikov N. M. , Voronkin M. V. ,   The Far-Eastern Institute of Management – branch of RANEPA ; The Khabarovsk College of water transport and industry
Published: May 2022

The network of educational organizations, enshrined in the legislation of the Russian Federation, is a highly effective socio-managerial technology for increasing the effectiveness of training specialists of secondary professional educational organizations in demand in the regional labor market of the Khabarovsk territory. However, due to the objective conditions and subjective factors, its organization in the region does not yet give a synergistic effect, allowing to realize new development opportunities from the integration of educational organizations and subjects of the network interaction. The results of sociological survey of the heads of technical schools (colleges) and pedagogical workers of the Khabarovsk territory, presented by the authors in the article, indicate the problems of network interaction in the implementation of educational programs. They are due to both, the state of the outdated material and technical base of educational organizations, the imperfection of regional normative legal regulation of implementation of educational programs in a network form, insufficient personnel support, and the limited socio-managerial communications, the contradictory attitude of the subjects of interaction to the possibilities of its implementation in modern conditions. Based on the analysis of organization of the network interaction of organizations of secondary vocational education, recommendations on its resource support are proposed.
EFEITO DAS DOAÇÕES DE CAMPANHA SOBRE O MERCADO ACIONÁRIO BRASILEIRO
Authors: Da Silva Rodrigues Fernanda , Vianna Brugni Talles , Soares Monte-mor Danilo , Pereira Bastos Sérgio Augusto
Published: May 2022

A pesquisa investiga empresas listadas na Brasil, Bolsa, Balcão (B3), observando a relação entre as conexões políticas estabelecidas por meio de doações para financiamento das eleições presidenciais no Brasil, ocorridas no período de 2002, 2006, 2010 e 2014, e possíveis mudanças no retorno, volume de negociação e na volatilidade do preço e do volume das ações das empresas doadoras. Os resultados demonstram que não há relação entre o montante de doações para financiamento de campanha e o retorno das ações das empresas doadoras de modo geral. Contudo, as empresas doadoras tendem a apresentar retornos menores, sendo intensificado nos anos de eleição, quando comparadas às empresas não doadoras. Adicionalmente, há uma relação entre as doações e o aumento no volume de negociação, redução da volatilidade do preço das ações e volatilidade do volume de negociação, indicando que as empresas que realizam doações são percebidas como investimentos de menor risco no mercado, possivelmente em função de conexões políticas.
CICLO POLÍTICO ORÇAMENTÁRIO E OS LIMITES DA LEI DE RESPONSABILIDADE FISCAL NOS MUNICÍPIOS DO SUL DO BRASIL NO PERÍODO DE 2015 A 2018
Authors: Machado Andrei Dal Sent , De Oliveira Guilherme , Almeida Helberte João França
Published: May 2022

Após mais de 20 anos da promulgação da Lei de Responsabilidade Fiscal (LRF), diversos municípios descumprem os limites impostos pela referida Lei. Nesse sentido, o presente estudo avalia se os municípios que ultrapassaram os limites da LRF apresentam maior incidência de práticas fiscais oportunistas, como ciclos políticos orçamentários. Para tanto, utiliza-se da abordagem de regressão de dados em painel referentes aos municípios da região Sul do Brasil no período de 2015 a 2018. Os resultados apontam que as dummies de ciclo apresentam coeficientes negativos para os grupos de despesas considerados, estando em desacordo com a teoria de ciclo político orçamentário. Assim, este comportamento contrário à teoria pode ser explicado pela forte recessão econômica no biênio 2015-2016 – ano pré-eleitoral e eleitoral –, combinado com a impossibilidade de isolar os efeitos macroeconômicos daqueles causados somente pelo comportamento oportunista. Contudo, a elasticidade dos coeficientes demonstra que, mesmo com a diminuição dos gastos em ambos os anos, houve uma tendência de contenção de cortes no ano eleitoral, além de um controle fiscal menor nos municípios que descumpriram os limites, o que corrobora com a teoria dos ciclos políticos.
Dynamique spatio-temporelle de Planococcus ficus (Signoret, 1875) dans les vignobles de la Mitidja (Algeria).
Authors:   Département de biologie, Faculté des Sciences, Université M’Hamed Bougara, Boumerdès, Algérie, Zohra Bissaad Fatima , Bounaceur Farid ,   Laboratoire d’Agrobiotechnologie et de nutrition en zones semi arides, Equipe Biologie de la conservation, Faculté des Sciences de la Nature et de la Vie, Université Ibn Khaldoun Tiaret, Algérie, Doumandji-Mitichet Bahia ,   Département de Zoologie Agricole, Ecole Nationale Supérieure d’Agronomie El Harrach, Algérie
Published: May 2022

Jusqu’à présent, les recherches entreprises en Algérie pour contrôler Planococcus ficus Signor et ou cochenille farineuse, ravageur responsable de nombreux dégâts sur vignes, ont été très limitées. Une étude sur la dynamique spatio-temporelle du parasite a été entreprise pendant trois années, dans les vignobles de la Mitidja occidentale en Algérie. Des échantillonnages hebdomadaires de feuilles et de grappes ont été effectués de 2006 à 2008 sur cépages de cuves et de tables. Une forte contamination par P. ficus a été observée en été et en début de l’automne selon les cépages et les années. Le système de Monitoring a montré la succession de 5 à 6 pics sur feuilles et 3 à 4 pics sur grappes de raisins.
Economic Benefit of using treated water for irrigation in Bekka Region, Lebanon.
Authors:   Faculty of Agriculture and Veterinary Sciences, Lebanese University, Beirut, Lebanon, Husseiki Marwan , Nassar Elham ,   Faculty of Agriculture and Veterinary Sciences, Lebanese University, Beirut, Lebanon, Raad Daoud ,   Faculty of Agriculture and Veterinary Sciences, Lebanese University, Beirut, Lebanon, El Achkar Rawine ,   Faculty of Agriculture and Veterinary Sciences, Lebanese University, Beirut, Lebanon
Published: May 2022

In this study, effect of using treated wastewater secondary effluent on the growth and yield of grapes was evaluated. The wastewater quality assessment indicated that some parameters did not comply with Lebanese standards for crop irrigation. Further studies should be conducted on the quality of crops irrigated using treated and raw wastewater to assess the risks on human health, soil and groundwater. Results showed that the overall biomass increased in plants irrigated with wastewater and grape production per plant increased by 40%.
Stimulation des défenses naturelles par l’application d’un Lombricompost. Effet sur les paramètres populationnels d’Aphis fabae scop. (Homoptera: Aphididae) et la qualité Phytochimique de la fève.
Authors:   Université Blida 1, Faculté des Sciences de la Nature et de la Vie, Département des Biotechnologies, B.P. 270, route de Soumaa Blida, Algérie, Chaichi Wissem , Djazouli Zahr-Eddine ,   Université Blida 1, Faculté des Sciences de la Nature et de la Vie, Département des Biotechnologies, B.P. 270, route de Soumaa Blida, Algérie, Djemai Imène ,   Université Blida 1, Faculté des Sciences de la Nature et de la Vie, Département des Biotechnologies, B.P. 270, route de Soumaa Blida, Algérie, Hasna Abdelkader Soumia ,   Université Blida 1, Faculté des Sciences de la Nature et de la Vie, Département des Biotechnologies, B.P. 270, route de Soumaa Blida, Algérie, Ribera Isabelle ,   Association Labo-Junior 32, Association Labo Junior 32, La Barrière en Betestat, F-32810 Duran, France, Nancé Jean Michel ,   Association Labo-Junior 32, Association Labo Junior 32, La Barrière en Betestat, F-32810 Duran, France
Published: May 2022

The integrated production in durable agriculture aims to improve the efficiency of biological inputs through formulations extending the remanence in the field or the incorporation of synergistic products which, being themselves nontoxic at used quantities, increase the protective action of the viabe cultivations. The lombricultivation represents an appropriate technology to enhance the value of the farm residues and manage, on a long term basis, plant health. The study focused on the stimulation of natural defenses of bean through the use of a lombricompost dilutions produced in two different seasons. The effect of lombricompost has been evaluated based on the Aphis fabae population density in relation to the phytochemical quality of the nutritional support. Variations of biochemical molecule contents and major mineral elements during the leaf expanding phase have been noticed. These changes affect the biological performance as well as the density of A. fabae population. The results allowed detecting a positive effect of lombricompost on plant chemistry. On the other hand, enrichment in proteins and proline under the effect of strong dilution was noticed. Finally, results related to the repressive effect of the different forms of lombricompost showed a marked difference between treatments and the control, with a stronger effect on the winged forms. Results also indicated some variability of the Aphis Fabae populational structure in relation to the phytochemical enrichments established by the application of lombricompost.
Comparison between frictional behavior of the soft and brittle materials at different contact pressures.
Authors:   Department of Physics, Urmia University of Technology, Sharifi Miavaghi Amir , Kangarlou Haleh ,   Faculty of Science, Department of Physics, Islamic Azad University, Urmia Branch, Iran, Eskandarzade Mehdi ,   School of Mechanical Engineering, Tehran University, Tehran, Iran P.O.B. 14395515 Tehran, Iran
Published: May 2022

Coefficient of friction changed significantly by the change in contact pressure. Experimental measurement of the coefficient of friction in different contact pressures can be useful in numerical and analytical analysis of many engineering problems, such as metal forming process. This study dedicated to investigate the sensitivity of the friction coefficient to changes in contact pressures. To aim this goal the special tribometer device has been fabricated and the coefficient of friction of the soft and brittle metals when sliding with a low speed on a rigid body are measured for different contact pressures. The friction sensitivity of the soft (copper and aluminum) and brittle (steel) samples to changes in contact pressure are compared and discussed. The results showed that both brittle and soft metals are highly sensitive for change in contact pressure but their behaviour is slightly different. While the coefficient of friction of the steel sample when sliding on a steel substrate is reduced sharply by a little increase in contact pressure; the coefficient of friction of the soft material when sliding on a steel substrate is reduced slowly depending on the magnetude of the applied normal load.
Reducing blackouts via wind power, a sparse grid case in Lebanon.
Authors:   Environmental Sciences Department, Lebanese University, Faculty of Agricultural Sciences, Dikwana - Mount Lebanon, Assaf Bassam , Zihri G. ,   Environmental Sciences Department, Lebanese University, Faculty of Agricultural Sciences, Dikwana - Mount Lebanon
Published: May 2022

The statistical analysis of wind speed is an essential requirement in estimating the wind energy potential to generate electrical power by grouping and assessing the yearly observations of a selected site. In our attempt to study the wind energy potential in Lebanon we propose an estimation of wind potential by analyzing the wind characteristics of nine regions where the meteorological stations are located. The Weibull distribution function and its parameters were determined and the energy potential of the wind was assessed in each of the studied sites. The comparison of the resulting power density with the PNL classification scheme in Dahr-El-Baidar, Ksara, Marjayoun and Qlaiat proved that Lebanon posses an important opportunity to generate electric power from wind especially during seasons of peak consumption.
A note on optimal estimation in the presence of outliers.
Authors:   Department of Mathematics and Statistics, Notre Dame University - Louaize, Zouk Mosbeh, Lebanon., N. Haddad John
Published: May 2022

The basic estimation problem of the mean and standard deviation of a random normal process in the presence of an outlying observation is considered. The value of the outlier is taken as a constraint imposed on the maximization problem of the log likelihood. It is shown that the optimal solution of the maximization problem exists and expressions for the estimates are given. Applications to estimation in the presence of outliers and outlier detection are discussed and illustrated through a simulation study and analysis of trade data.
استخدام تكنولوجیا الإستشعارعن بعد في إكتساب الكفایات في مادة الجغرافیا
Authors:   المركز الوطني لالستشعار عن بعد، المجلس الوطني للبحوث العلمية، لبنان, غندور علي جواد , الزغبي زاهي ,   كلية التربية، الجامعة اللبنانية، لبنان
Published: May 2022

في ظل ما يشهده العالم من ثورة غير مسبوقة في مجال التكنولوجيا، أصبح معيار تقد م الدول يقاس بمدى إستخدامها لمختلف الوسائل التكنولوجية الحديثة وتوظيفها في مختلف المجاالت الحياتية وخاصة التعليم والتعلم. ومن هنا، فقد زاد اإلهتمام باألبحاث والدراسات المختصة بإدماج التكنولوجيات الحديثة في العملية التربوية. وعلم الجغرافيا الذي يدرس اإلنسان والبيئة التي يعيش فيها، شبه غائب عن هذا التطور التكنولوجي في المناهج التربوية في لبنان والعالم العربي. ولذا يهدف هذا البحث اإلجرائي إلى دراسة أثر إستخدام التكنولوجيا وبالتحديد تكنولوجيا اإلستشعار عن بعد في تدريس مادة الجغرافيا في المنهج اللبناني. أظهرت النتائج المستقاة من هذا البحث باإلعتماد على التجربة والرصد والقياس اإلحصائي على عينة من ُمتَعلمي الصف التاسع األساسي، األثر اإليجابي الهام لإلعتماد على التكنولوجيا في إكتساب الكفايات في مادة الجغرافيا وذلك على مستوى دعم التحصيل الدراسي وتنمية مهارات قراءة الخرائط لدى المتعلمين.
Local poultry populations in Chlef (Algeria): phenotypes, rearing systems and performances.
Authors:   Laboratory of Natural Bio-Resources, Department of Biology, Faculty of Nature and Life Sciences, Hassiba Ben Bouali University of Chlef, PO Box 151, (02000) Chlef, Algeria., ZIDANE AZDINIA , ABABOU ADDA ,   Laboratory of Natural Bio-Resources, Department of Biology, Faculty of Nature and Life Sciences, Hassiba Ben Bouali University of Chlef, PO Box 151, (02000) Chlef, Algeria., METLEF SARRA ,   Laboratory of Natural Bio-Resources, Department of Nutrition and Food Sciences, Faculty of Nature and Life Sciences, Hassiba Ben Bouali University of Chlef, PO Box 151, (02000) Chlef, Algeria, NIAR ABDELLATIF ,   Laboratory of Animal Farm Reproduction, National Institute of Veterinary Sciences, Ibn Khaldoun University of Tiaret, PO Box 78, (14000) Tiaret Algeria.
Published: May 2022

The local chickens represent a very important source of income and high quality protein for rural households all over the world and especially in the poorest African countries. In Algeria, the local poultry populations is a valuable source of income and play a significant cultural role; they are thus offered as gifts and used during ritual sacrifices or ceremonies. Despite their economic and cultural importance, Algerian local breeds being exploited only in family farms, remain poorly known. In order to document and identify the phenotypic characteristics of the local poultry populations in the region of Chlef, several surveys were conducted on 72 families. Socioeconomic results showed that all women (100%) were housewives; and they were the key player (80%) in the chicken-farming activity. The chickenrearing conditions were very rudimentary, characterized by an inadequate housing (73.5%), insufficient quantity of food (75%), uncontrolled reproduction scheme and a complete lack of veterinary assistance, leading to significant losses mainly due to diseases (52%) and predation (31%). The observation and analysis of 677 animals led to the identification of several phenotypes; the white, straw, red and golden were the most dominant plumage colors, the smooth feathers was the most frequent (92.8%) type of plumage and the normal distribution of plumage prevailed with 83.8%. The average weight comparison showed a very significant sexual dimorphism (p < 0.0001) in favor of males. The improvement of rearing conditions remains the best solution to improve productivity.
Etude régionale des pluies maximales journalières annuelles fréquentielles du centre nord d’Algérie.
Authors:   University Kasdi Merba, Ouargla 511Route Ghardaia,Ouargla 030000,Algeria., Zeggane Houari
Published: May 2022

Une véritable calamité, pour l’ingénieur concepteur des ouvrages hydrauliques, lors de calcul des pluies maximales journalières fréquentielles, la région centre nord d’Algérie présente des zones urbaines de grande importance stratégique à l’image de d’Alger (la capitale), l’estimation des pluies maximales journalières fréquentielles de cette partie d’Algérie, à partir de séries d’observation ayant peu ou absence de données, devient peu crédible. Une analyse fréquentielles régionale des pluies maximales annuelles journalières, s’est imposée comme l’une des méthodes pour pallier à ce problème. La méthode L-moments a été appliquée aux pluies maximales journalières annuelles de cinquante-quatre stations pluviométriques du nord centre d’Algérie, il ressort de cette étude trois zones homogènes. Deux lois de distribution, la loi GEV (generalized extreme value) et la loi GLO (Generalized logistique) s’ajustent aux vecteurs régionaux des trois zones, calculant ainsi les quantiles régionaux pour chaque zone. Dans les trois régions, le biais relatif et la racine carrée de l’erreur quadratique moyenne (REQM) des quantiles régionaux et locaux sont inférieurs à 8%, ce qui montre la robustesse de la méthode.
Isolation and identification of halotolerant microorganisms resistant to heavy metals in the city of Qom, Iran.
Authors:   Environmental Research Institue Academic Center for Education Culture and Research, Rasht, Iran, Tanzadeh Jina , shareghi Maede ,   Islamic Azad University, Guilan branch, Rasht, Iran.
Published: May 2022

Bioremediation is a new and promising technology available for removal and recovery of heavy metals in polluted soil and water. Microorganisms which can resist high concentration of toxic heavy metals are often considered as effective tools of bioremediation from such pollutants. The aim of this study is to screen and characterize the resistance of the halotolerant bacteria to heavy metals from Hoze Sultan lake in Qom. Halophilic and halotolerant microorganisms resistant to heavy metals such as nickel, cadmium, copper and cobalt were isolated from Qom Hoze Sultan lake. Investigating the resistance to heavy metals in the collected samples showed that halotolerant microorganisms exhibited the highest resistance to nickel and cobalt metals and were the most sensitive to cadmium and copper metals.
Comparing the capability of ETM+ and LISS-iii imagery in riparian forest mapping: a case study of Maroon river, Iran.
Authors:   Graduate student (M. Sc.), Natural Resources and Ecology Forest, Ahwaz, Iran., Firoozynejad M. , Torahi A. A. ,   Department of Remote Sensing and GIS, Faculty of Geography, Kharazmi University, Tehran, Iran, Rai S.C. ,   Department of Geography, Delhi School of Economics, University of Delhi, Delhi-110007, India.
Published: May 2022

In order to assess and compare the capability of ETM+ and LISS-III data in the mapping of riparian forests of the Maroon River in Behbahan, Iran, a small window of panchromatic and multispectral images of LandsatETM+ and IRS-1D-LISS-III satellite data was selected. The quality of data and radiometric error was checked and geometric correction was implemented using 25 ground control points. Principal component analysis (PCA), tasseled cap transformation and appropriate vegetation indexes (NDVI) were applied to provide the main bands for incorporation in the classification processes. The study also used image fusion by Pansharp (the Gram-Schmidt Spectral Sharpening method) and the HSV method for high spectral and spatial resolution. After selecting the training data, the classification was carried out by choosing seven-class and three-class land-use/cover using a maximum likelihood algorithm. Transformed divergence and Jeffreys–Matusita were used to test the separability of the classes. Considering the results, it can be concluded that IRS1D-LISS-III and landsat 7-ETM+ data have a suitable ability for mapping the Maroon riparian forest as well as the classification of forest to separate landuse. The classification using original bands of ETM+ is better than LISS-III data due to higher spectral resolution. The opposite of these results is only shown in the classification with three user classes. The overall accuracy and kappa coefficient in this method were 98.80 and 0.84, respectively.
Optimization of extraction conditions for phenolic compounds from Salvia Chudaei.
Authors:   Ouargla Univ., Fac. Natural and Life Sciences, Lab. Biogeochemistry of Desert Environments, Ouargla, Algeria, Hammoudi Roukia , Khenfer Siham ,   Ouargla Univ., Fac. Natural and Life Sciences, Lab. Biogeochemistry of Desert Environments, Ouargla, Algeria, Medjouel Maroua ,   Ouargla Univ., Fac. Natural and Life Sciences, Lab. Biogeochemistry of Desert Environments, Ouargla, Algeria, Laid Tlili Mohamed ,   Eloued Univ., Fac. Natural and Life Sciences, Lab. Biogeochemistry of Desert Environments, Ouargla, Algeria, Hadj Mahammed Mahfoud ,   Ouargla Univ., Fac. Applied Sciences, Lab. Biogeochemistry of Desert Environments, Ouargla, Algeria.
Published: May 2022

This study focused on optimization of the extraction conditions of phenolic compounds from the aerial and the underground parts of a medicinal plant, endemic in the Algerian Sahara: Salvia chudaei Batt. & Trab. (Lamiaceae). This plant has been subjected to two extraction methods (soxhlet and maceration), with optimization of extraction conditions (solvent, concentration, time and temperature). The best extracts based on the antioxidant capacity using two tests (FRAP and DPPH) were obtained by ethanol 80% as solvent and extraction period of 100 min for the aerial part and 20 min for the underground part by soxhlet method, whereas, 60 min at 30°C for the aerial part and 15°C for the underground part were appropriate for extraction by maceration.
Autogenous Self-Healing of Concrete: Experimental Design and Test Methods – A Review
Authors: Lahmann Daniel , Edvardsen Carola , Kessler Sylvia
Published: May 2022

Cracks in concrete structures can serve as pathways for aggressive
chemical substances that can lead to a progressive deterioration of the
cement stone as well as of the reinforcement, affecting the load
capacity, service life and useability of concrete structures. However,
concrete and reinforced concrete exhibit an intrinsic ability to heal
cracks, defined as autogenous self-healing. This effect includes the
precipitation of calcium carbonate in the presence of water and CO2 and
is accompanied by continued hydration, swelling and mechanical blocking
of the crack pathway. Experiments led to the inclusion of crack healing
by autogenous self-healing in Eurocode 1992-3 for water retaining
concrete structures. However, despite code restrictions, autogenous
self-healing of concrete shows limited effectiveness in practice. This
indicates the need for further research to provide engineers with
reliable design rules. Therefore, this study aims for giving a broad
literature review on the state-of-the-art knowledge on autogenous
self-healing, the boundary conditions, consensus and controversy of
processes and factors influencing the efficiency of autogenous
self-healing. Regarding the transferability of laboratory results to
real concrete constructions, materials, crack initiation techniques,
experimental concepts and methods for assessing the effectiveness of
autogenous self-healing are discussed and recommendations for future
experiments are set.
SET and MYND domain-containing protein 2 (SMYD2): A prognostic biomarker associated with immune infiltrates in cervical squamous cell carcinoma and endocervical adenocarcinoma
Authors: An Zhanglu , Cai Danyang , Lin Xiongzhi , Xu Shuaijun , Bin Jin , Jin Xiaojun
Published: May 2022

The histone lysine methyltransferase SET (Suppressor of variegation, Enhancer of Zeste, Trithorax) and MYND (Myeloid-Nervy-DEAF1) domain-containing protein (SMYD2) plays a role in the tumorigenesis of cervical squamous cell carcinoma and endocervical adenocarcinoma (CESC). However, the prognostic significance of SMYD2 in CESC and the link between SMYD2 and tumor-infiltrating immune cells are unknown. The prognostic value of SMYD2 in CESC was obtained from The Cancer Genome Atlas (TCGA). SMYD2 mRNA and protein were both highly expressed in CESC compared with normal tissues. The high expression of SMYD2 was associated with advanced tumor status and poor prognosis in CESC patients. SMYD2 was an independent prognostic factor for overall survival. In vitro experiments with knockdown of SMYD2 suppressed CESC cell migration and invasion. The online tumor immune estimation resource (TIMER) and Kaplan-Meier analysis results revealed that the infiltration of CD4+ T and CD8+ T cells was related to poor prognosis. In TIMER-based multivariate Cox regression analysis, CD8+ T cells and SMYD2 were demonstrated as independent prognostic factors of CESC. In conclusion, our data suggest that high SMYD2 expression is a predictor of poor prognosis in CESC patients; SMYD2 could serve as a prognostic biomarker and molecular therapeutic target for CESC.
Carbohydrate Tolerance Threshold for Unannounced Snacks in Children and Adolescents With Type 1 Diabetes Using an Advanced Hybrid Closed-Loop System
Authors: Tornese Gianluca , Carletti Claudia , Giangreco Manuela , Nisticò Daniela , Faleschini Elena , Barbi Egidio
Published: May 2022

Objective To find a carbohydrate tolerance threshold for
unannounced snacks to avoid the 2-hours increase in glycemia (∆BG) ≥50 mg/dl in
advanced hybrid closed-loop (a-HCL) users.

Research
Design and Methods Fourteen children and adolescents with Type 1
Diabetes (7 females, mean age 14.5±3.6
years), users of Medtronic Minimed™
780G, participated in the study. For 12 days, they did not perform insulin
bolus before breakfasts, with defined different quantities and types of CHO,
with or without fats, performing blood glucose (BG) before and 2 hours after
the meal.

Results A cut-off of
19.8 gr of total carbohydrates was found
to determine a ∆BG of 50 mg/dL. BG
never exceeded 250 mg/dL. Mean TIR was ≥70% in the 2 hours following
each snack.

Conclusions Unannounced snacks up to 20 grams of CHO can avoid ∆BG ≥50 mg/dL in Minimed™ 780G users,
although unannounced meals up to 30 grams of CHO are safe.
The use of energy-saving technologies at oilfield facilities
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Ponomarev N. S. , Ulyasheva V. M. ,   Saint Petersburg State University of Architecture and Civil Engineering, Sukhanova I. I. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: May 2022

The article presents the results of the analysis of using gas turbine power plants (GTPP) based on micro turbine generators for the electrical and thermal energy generation during an oil field development. The main characteristics of the GTPP are given. New materials and technologies for thermal insulation of pipelines of the heat supply system are proposed.The expediency of using the cogeneration principle based on the use of gas turbine power plants in the energy systems of oil fields has been substantiated. The work was carried out with the support of the world-class scientific and educational center «Russian Arctic: new materials, technologies and research methods».
Methodology for determining optimal routes in operational planning of road freight transport
Authors:   LLC «Globeks», Andreev A. Yu.
Published: May 2022

The article presents a methodology for determining optimal routes in dynamically changing conditions of operational planning of road freight transport. The methodology consists of two main elements: theoretical software (router) and implementing software (routing protocol). It has unique properties, namely, the analytical apparatus of the router provides the possibility of choosing an effective action in the presence of stochastic uncertainty (when there is no information, which would guarantee the justified application of the well known laws of distribution of random variables). It works with an unlimited number of entries into the system, therefore, not only effective performance indicators of cars can and should be included in the databases of the studied data, but effective indicators of cargo handling facilities as well.
Improving road safety of bicycle transport in St. Petersburg
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Blinder M. M.
Published: May 2022

The paper submits the results of an analysis of road traffic accidents with cyclists in 2020. There was taken into account the date, time, cause, area, address and number of victims in accidents, with the existing cycling infrastructure of the city (the number and location of bicycle lanes) studied. An assessment of road traffic accident concentration sites and risky traffic areas for bicycle transport was carried out on the example of St. Petersburg. Conclusions are made about the need to improve the bicycle infrastructure in order to improve the safety of bicycle traffic.
Methodology for calculating the basic component of the injury risk, in cases when the car rolls over, in private tasks of road traffic accident examination
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Voronin V. V.
Published: May 2022

This article deals with the method of solving private tasks of road traffic accident examination for accidents with the car rolls over and the use of injury risk assessment in these tasks. The calculation method is based on the results of the analysis of the CDS (Crashworthiness Data System, which is an emergency safety data system) and FARS (Fatality Analysis Reporting System, which is a reporting system for the analysis of road deaths) databases. A new dependence of the change of the basic risk component on the static coefficient of transverse stability in comparison with the known foreign analogues is given.