bluuebunny/crossref_metadata_2025 huggingface dataset:
Ice thickness and water level estimation for ice-covered lakes with satellite altimetry waveforms and backscattering coefficients
Authors: Li Xingdong , Long Di , Cui Yanhong , Liu Tingxi , Lu Jing , Hamouda Mohamed A. , Mohamed Mohamed M.
Published: July 2022

Abstract. Lake ice, serving as a sensitive indicator of climate change, is an important regulator of regional hydroclimate and lake ecosystems. For ice-covered lakes, traditional satellite altimetry-based water level estimation is often subject to winter anomalies that are closely related to the thickening of lake ice. Despite recent efforts made in exploiting altimetry data to resolve the two interrelated variables, i.e., lake ice thickness (LIT) and water level of ice-covered lakes, several important issues remain unsolved, including the inability of estimating LIT with altimetric backscattering coefficients in ungauged lakes due to the dependence on in situ LIT data. It is still unclear what role lake surface snow plays in the retrieval of LIT and water levels in ice-covered lakes with altimetry data. Here we developed a novel method to estimate lake ice thickness by combining altimetric waveforms and backscattering coefficients without using in situ LIT data. To overcome complicated initial LIT conditions and better represent thick ice conditions, a logarithmic regression model was developed to transform backscattering coefficients into LIT. We investigated differential impact of lake surface snow on estimating water levels for ice-covered lakes when different threshold retracking methods are used. The developed LIT estimation method, validated against in situ data and cross-validated against modelled LIT shows an accuracy of ~0.2 m and is effective in detecting thin ice that cannot be retrieved by altimetric waveforms. We also improved estimation of water levels for ice-covered lakes with a strategy of merging lake water levels derived from different threshold methods. This study facilitates a better interpretation of satellite altimetry signals from ice-covered lakes and provides opportunities for a wider application of altimetry data to the cryosphere.
From gigawatt to multi-gigawatt wind farms: wake effects, energy budgets and inertial gravity waves investigated by large-eddy simulations
Authors: Maas Oliver
Published: July 2022

Abstract. The size of newly installed offshore wind farms increases rapidly. Planned offshore wind farm clusters have a rated capacity of several gigawatt and a length of up to one hundred kilometers. The flow through and around wind farms of this scale can be significantly different than the flow through and around smaller wind farms on the sub-gigawatt scale. A good understanding of the involved flow physics is vital for accurately predicting the wind farm power output as well as predicting the meteorological conditions in the wind farm wake. To date there is no study that directly compares small wind farms (sub-gigawatt) with large wind farms (super-gigawatt) in terms of flow effects or power output. The aim of this study is to fill this gap by providing this direct comparison by performing large-eddy simulations of a small wind farm (0.96 GW, 13 km length) and a large wind farm (11.52 GW, 90 km length) in a convective boundary layer, which is the most common boundary layer type in the North Sea. The results show that there are significant differences in the flow field and the energy budgets of the small and large wind farm. The large wind farm triggers an inertial wave with a wind direction amplitude of approximately 10° and a wind speed amplitude of more than 1 ms-1. In a certain region in the far wake of a large wind farm the wind speed is greater than far upstream of the wind farm, which can be beneficial for a downstream located wind farm. The inertial wave also exists for the small wind farm, but the amplitudes are approximately 4 times weaker and thus may be hardly observable in real wind farm flows, that are more heterogeneous. Regarding turbulence intensity, the wake of the large wind farm has the same length than the wake of the small wind farm and is only a few kilometers long. Both wind farms trigger inertial gravity waves in the free atmosphere, whereas the amplitude is approximately twice as large for the large wind farm. The inertial gravity waves induce streamwise pressure gradients inside the boundary layer, affecting the energy budgets of the wind farms. The most dominant energy source of the small wind farm is the horizontal advection of kinetic energy, but for the large wind farm the vertical turbulent flux of kinetic energy is 5 times greater than the horizontal advection of kinetic energy. The energy input by the gravity wave induced pressure gradient is greater for the small wind farm, because the pressure gradient is greater. For the large wind farm, the energy input by the geostrophic forcing (synoptic-scale pressure gradient) is significantly enhanced by the wind direction change that is related to the inertial oscillation. For both wind farms approximately 75 % of the total available energy is extracted by the wind turbines and 25 % is dissipated.
El inmoralismo de Trasímaco y la pleonexía
Authors: Echeñique Sosa Javier
Published: July 2022

Este artículo ofrece una interpretación del famoso Inmoralismo de Trasímaco, es decir, de sus juicios respecto al valor superior de la injusticia en comparación con la justicia, emitidos en el libro I de la República de Platón (Resp. 336b-354c). Se defiende primero la tesis de que tanto el argumento en apoyo de estos juicios inmoralistas como su recurso implícito al concepto de πλεονεξία (aventajamiento personal) no pueden ser interpretados de modo descriptivo. En segundo lugar, se defiende la tesis de que un subconjunto de estos juicios evaluativos está fundado en una concepción peculiar de la racionalidad práctica basada en el concepto de πλεονεξία. Finalmente, se contrasta dicha concepción ‘pleonéxica’ de la racionalidad práctica con aquella defendida por Platón en la República.
Subjetividad y lenguaje en Freud y Lacan: del sujeto del inconsciente al giro pragmático de la filosofía
Authors: Gracia Gómez Alfonso A.
Published: July 2022

El siguiente artículo plantea un análisis del conflicto que se da entre filosofía y psicoanálisis tanto en las obras de Sigmund Freud como de Jacques Lacan; conflicto este vehiculado a partir de la condición enajenada del sujeto que se plantea a partir de la tesis del inconsciente. El sujeto se deconstruye en tanto que conciencia y revela su imposibilidad en el acto mismo en el que se presenta mediante su decir. De este modo, el lenguaje configura la idea freudo-lacaniana del inconsciente en la forma de un acto de iteración performativa, no tanto ya a nivel de la consulta, sino como cogito fundante de la reflexión filosófica y científica.
El Mapa Mundial de Matteo Ricci y sus Desafíos al Pensamiento Traditional Chino
Authors: Zhang Yuchen
Published: July 2022

Como una de las herramientas más llamativas e intuitivas de predicar el evangelio, el Mapamundi fue presentado en China por los primeros misioneros jesuitas que ingresaron a este país asiático en el siglo XVI. El objetivo de introducir el conocimiento geográfico, astronónico y cartográfico de Occidente fue transformar la visión cósmica del pueblo chino, afectando así a sus creencias tradicionales. La indiferencia y resistencia de los literatos chinos ante este acto demuestra que, en efecto, esta operación epistémica trataba de sacudir totalmente la ideología nacional y la estructura social, ambas basadas en la filosofía confuciana. Este artículo tiene como objetivo revelar la tensión fundamental entre el confucianismo y el cristianismo a través de esta irrupción del mapamundi en la época dinásticas.
Burkert, Walter, La Religión Griega: Arcaica y Clásica. Madrid, Abada Editores, 2007, 502 pp. ISBN: 978-84-96775-01-5
Authors: Fredericksen Neira Alfredo
Published: July 2022

Reseña de la obra de Burkert, Walter, La Religión Griega: Arcaica y Clásica. Madrid, Abada Editores, 2007, 502 pp. ISBN: 978-84-96775-01-5.
Using a CDFI-Like Program to Expand Online Lending to Minority Business Owners
Authors: Mary Zhu
Published: July 2022

Minority business owners face challenges in accessing credit due to banking industry-wide trends moving away from small-dollar loans and because many have less formal credit information. Online lenders have emerged to meet this market demand, using various sources of data besides credit scores to assess creditworthiness. These platforms help minority business owners who have limited credit data. However, online lenders may suffer liquidity problems during a recession, when business owners may be especially in need of funding.

This Note advocates for programs that incentivize online lenders to invest in low-income and minority communities. Specifically, this Note outlines a proposal for a community development financial institution fund-like subsidy system that offers federal grants to online lenders that invest in certain low-income communities and businesses, upon the condition that these lenders will maintain enough capital reserves to ensure they can continue providing credit during a recession. Such a program can help ensure minority business owners have consistent access to credit.
Plagiarism Overview: What A Research Scholar Should Know
Authors: A.R. Dr. Harish Kumar
Published: July 2022

Plagiarism mostly seen in the articles of research scholar. Investigator uses the ideas, words of any author in their dissertation, projects, thesis without any proper citation. Research scholar should be made aware of this for plagiarism prevention. In this paper I have briefed about Plagiarism, What is Plagiarism its types, how to detect, how to avoid Plagiarism and how to prevent it and also effective Plagiarism detecting software's and this basis identify that how much work is real and other is fraud.

Key words: Plagiarism, Research scholar .
Short Term Effects of Combination of ACBT, Chest Mobility Exercises and Tens on Chest Expansion, PEFR and Pain Perception Postabdominal Surgeries: RCT
Authors: Nishi Kapuria , Dinesh Sorani , Jayesh Parmar
Published: July 2022

Background and objectives: Abdominal surgery involves a surgical repair, resection or reconstruction of organs inside the abdominal cavity. Postoperative pulmonary complications are common after abdominal surgeries. Pulmonary function tests, such as FVC, FEV1 and peak expiratory flow rate, are all reduced significantly after surgery, especially if the patient has pain. This purpose of the study is to determine the short term effects of combination of ACBT, Chest mobility exercises and TENS on pulmonary variables and pain on patients who had recent abdominal surgery.
Methods: The study was conducted on 40 stable patients who underwent major abdominal surgery of age above 25 years and were selected as per inclusion and exclusion criteria. They were randomly divided into experimental group1 (n=20) and control group2 (n=20). Group1 received combination of ACBT, chest mobility exercises and TENS while Group2 received breathing exercises and sham current, for 5 consecutive days. Pre and post differences in chest expansion, PEFR, and NPRS were assessed.
Results: Analysis of pre and post values of group 1 was done using Wilcoxon signed rank test which showed significant difference (P value < 0.05) for chest expansion, PEFR and NPRS. Between group analysis was done using Mann Whitney U test which showed significant difference (P value < 0.05) for all the three outcome variables.
Conclusion: It can be concluded from the present study that the combination of ACBT, Chest mobility exercises and TENS is effective in improving chest expansion, PEFR and reducing pain significantly in a short period.

Key words: Abdominal surgery, Postoperative pulmonary complications, ACBT, chest mobility exercises, TENS, Chest expansion, PEFR and NPRS. .
IN SILICO AND IN VITRO ANTIMICROBIAL TESTING OF AQUEOUS EXTRACT OF Vernonia amygdalina AGAINST Escherichia coli ISOLATED FROM WISTAR RATS INFECTED WITH Trypanosoma congolense
Authors: Tom-Otu M. O. , Omowaye O. S. , Makolo D. , Ayodele P. F. , Ogunyemi O. M. , Fabusiwa M. , Fabusiwa M.
Published: July 2022

The study was carried out to investigate the in silico and in vitro antimicrobial activity of Vernonia amygdalina aqueous extract (VAAE) against Escherichia coli on rats already infected with Trypanosoma congolense. Forty Wistar rats of 16 weeks old were used, and were randomly selected into six groups, where n = 5 in groups A, B, D, E and F; n = 15 in group C. Group A: uninfected-untreated; group B: uninfected-treated (500 mg/kgbwt VAAE); group C: infected-untreated; groups D: infected-treated (100 mg/kgbwt VAAE), E: infected-treated (300 mg/kgbwt (VAAE) and F: infected-treated (500 mg/kgbwt (VAAE). Using docking simulation, a number of phytochemicals were screened and identified in the VAAE used in the study. The findings have given an indication of in vitro antimicrobial activity of aqueous extract of Vernonia amygdalina leaves against Escherichia coli. Docking with topoisomerase iv (3FV5) revealed that 3 compounds (−8.5 to – 8.3 kcal/mol) with docking scores lower than the co-crystalized PBE (-6.1kcal/mol). The five topmost docked compounds including vernonioside A22, vernonioside A42, luteolin-7-rutinoside, vernonioside D2 and proline betaine (PBE) with the lowest docking scores exhibited the highest binding tendency with topoisomerase iv, upon interaction analysis. Residues involved in the intermolecular interaction include Asp69, Ile116, Ser117, Leu94, Gly73 Leu89, Arg93, Ile90, Glu46 and Val39 (h-bonds), Val118, Ile90, Met74, Gly73, Arg72, Pro75, Val39, Val165 and Tyr505 (π-π stacking interactions) and Glu46. Our findings revealed the stability of vernonioside A22, vernonioside A42, luteolin-7-rutinoside, vernonioside D2 and proline betaine (PBE) on the target topoisomerase iv in the target organism, which in support of the in vitro study has also shown that Vernonia amygdalina leaves have antimicrobial potential and as such be considered as a formidable source for the search for new drugs against bacteria.
THE ROLE OF PHYSICAL EDUCATION IN THE WELL-BEING AND SCHOOL PERFORMANCE OF PUPILS
Authors:   “Dunărea de Jos” University, Galati, Romania, Burlui Raluca Mădălina , Moisescu Petronel Cristian ,   “Dunărea de Jos” University, Galati, Romania
Published: July 2022

Abstract. The ever-changing ideals of modern society often tend to set too bold goals based on theoretical knowledge that can lead to great results. All these can have negative influences on mental health, characterized by a high degree of stress, exaggerated emotional reactions, reduced cognitive activity, inappropriate behaviors in the educational and social environment. Under these conditions, the practice of physical activities can be the optimal alternative for primary school pupils in order to eliminate the mental tension accumulated during the theoretical classes held in the classroom. We can say that through these activities pupils can develop their ability to adapt to various conditions, thus being able to control the emotions that appear as a consequence of the harmful influences of a civilization characterized by nervous exhaustion. Physical activity, practiced in different forms can put condition on the multidimensional development of the human being, because physical exercise develops and trains. The practice of motor activities on medium and long term, has a esential role in maintaining an optimal state of health, in promoting the sets of values, behavioral, social and personal attitudes. The purpose of this research is to find out through a questionnaire, what are the options for pupils in primary education. The questionnaire will highlight issues regarding the way of conducting the physical education class and whether it manages to increase the level of satisfaction, generating a state of relaxation and good mood.
QUALITY OF CONTEMPORARY STUDENTS LIFE AND LIFESTYLE
Authors:   Sports Club ”Team fit”, Satu Mare, Romania, Șunea Răzvan
Published: July 2022

Abstract. Quality of life is a concept, and at the same time, one of the basic concerns of all the management systems of modern society. Quality is a concept that refers to a subjective attitude of man, from the perspective of his intelligence and relates to human needs and desires. In order to improve the quality of life, any society creates an increasingly complex infrastructure through which all the multidimensional aspects of life are pursued. This was due to the fact that modern man is aware that all aspects contribute to the definition of his quality of life, both as an individual, as a member of human society, and as a universal entity. In the present research, we proposed a study on the evaluation of indicators related to the quality of life of students and the way in which students self-appreciate their lifestyle. The standardized questionnaire on quality of life - SF-36, was applied to a sample of 250 students from non-profile faculties within three higher education institutions: "Alexandru Ioan Cuza" University of Iasi, Romania; “Vasile Goldiş” Western University of Arad, Romania and the State University of Moldova, Chisinau, which aimed to assess the indicators regarding the quality of life of students, as well as the level of self-assessment of their healthy lifestyle.
OBESITY AND OVERWEIGHT IN CHILDREN AGED 6-11 AT INTERNATIONAL LEVEL
Authors:   High School with Sports Program, Suceava, Romania, Cojocaru Daniela
Published: July 2022

Abstract. Over time, many countries have seen obesity or overweight as a major problem which is best faced by half the population, both adults and children. In modern Western culture, being overweight or obese is considered unattractive, and is often associated with various negative stereotypes. With more and more obese people, they have become a real reason for discrimination [12]. Childhood obesity inevitably lowers life expectancy. The problem of overweight and excessive growth of obesity since childhood can be prevented or slowed down by the implementation of diversified programs, if the company focuses more on the causes. There are many causes, some more crucial than others, but a balanced diet, combined with systematic physical activity, can prevent obesity and overweight in all children around the world. Most researchers believe that obesity, which has been present since childhood and is maintained until adolescence, is much more difficult to treat. Preventing childhood obesity in most countries has become a public health issue, which requires close monitoring of those affected. Next, I will present an analysis of the situation at the international level regarding obesity and overweight in children aged 6-11 years.
Організація фармацевтичної справи, промислова фармація та судова фармація щодо компетенцій управління якістю під час обігу лікарських засобів: стандарти GxP
Authors: Шаповалова Вікторія , Шаповалов Валерій , Осинцева Аліна , Негрецький Сергій , Деркач Анатолій
Published: July 2022

Проведено дослідження компетенцій для управління якістю у фармацевтичній галузі під час обігу ЛЗ у відповідності до стандартів GxP (GDP, GLP, GCP, GSP, GDP, GPP) в межах організації фармацевтичної справи, промислової та судової фармації. Проаналізовано зміни, що відбулися в сучасній системі фармацевтичного забезпечення населення, у відносинах між суб’єктами фармацевтичного ринку та державою. Вивчено роль фармацевтичних підприємств і закладів охорони здоров’я у контексті впровадження комплексу належних практик GxP. Акцентовано увагу на моделі формування організаційно-управлінської культури управління якістю у майбутніх фармацевтів в системі правовідносин «лікар-пацієнт-фармацевт-адвокат». Система правовідносин заснована на юридичній, фармацевтичній опіці, інтеграції загальних і спеціальних компетенцій. Актуалізовано потребу обґрунтування наукових засад професійної підготовки фармацевтів нової генерації, що володіють основами організаційно-управлінської культури та відповідними освітніми та комунікаційними технологіями щодо управління якістю за стандартами GxP упродовж обігу лікарських засобів на фармацевтичному ринку.
Compromiso del consumidor como estrategia de comunicación para fomentar la abogacía de marca en fanpages de Facebook
Authors: Orozco-Lara Jhon , Rodríguez-Orejuela Augusto , Contreras Ramirez German
Published: July 2022

Debido al gran interés suscitado por académicos y profesionales respecto de la relación y la comunicación entre consumidores y marcas en redes sociales, el presente estudio analiza el compromiso del consumidor con la marca (CBE - consumer brand engagement), su participación en comunidades virtuales de marca y su efecto sobre la abogacía por la marca. Para tal efecto, se realizó una encuesta a 306 usuarios de Facebook en Colombia. Los datos se analizaron mediante un modelo SEM-PLS a través del software Smartpls 3. Los resultados mostraron que la participación del consumidor en comunidades virtuales influye en el CBE e impulsa la abogacía por la marca. Además, se identificó que el CBE puede ser mediador entre comportamientos asociados a la participación en comunidades virtuales de marca y la abogacía por la marca.
Ensuring safe drinking water - Successes in rural Nepal
Authors: Banziger Carola , Schertenleib Ariane , Marks Sara
Published: July 2022

Risk-based water safety interventions aim to ensure safe and reliable drinking water supply from source to consumer. In Nepal, water safety plans are increasingly being adopted, but evidence of their effectiveness in remote areas is still weak. This study presents new evidence on the effectiveness of risk-based water safety interventions in rural areas by analysing their effect on water quality, infrastructure reliability and users’ perception.
Time trend and causes of HIV/AIDS mortality in the state of Santa Catarina, 2010–2019
Authors: Escobar Braulio Sambaquy , Cunga Ilda Vaica Armando , Parma Gabriel Oscar Cremona , Iser Betine Pinto Moehlecke , Schuelter-Trevisol Fabiana
Published: July 2022

Introduction: Although the acquired immunodeficiency syndrome (AIDS) has no cure, antiretroviral treatment has considerably increased the survival of people living with the disease or with the human immunodeficiency virus (HIV), reducing the incidence of opportunistic infections in these patients. Thus, this treatment changed mortality rates and diversified the causes of death, including reasons related to increased longevity, such as chronic non-communicable diseases, common in the uninfected population. Therefore, the current epidemiological transition motivated us to study the death profile of people with HIV/AIDS in the state of Santa Catarina. Objective: To investigate case characteristics, as well as the time trend and distribution of deaths, among people with HIV/AIDS in Santa Catarina between 2010 and 2019. Methods: In this ecological, epidemiological study, we consulted all death records from the Santa Catarina Mortality Information System that had HIV/AIDS among the causes and occurred between 2010 and 2019. Results: A total of 5,174 death records were analyzed. In the period, the mean mortality rate among people with HIV/AIDS was 7.64 deaths per 100 thousand inhabitants (95% confidence interval — 95%CI 6.61–8.67) — 8.99 in 2010 and 6.06 in 2019 —, showing a downward trend of 0.38% per year. Conclusion: We identified a downward trend in mortality. Deaths were concentrated on the coast, in more populous cities. Furthermore, the finding of improper completion of the death certificate points to the need to invest in improving the training of professionals responsible for this document.
Management of Iron-Deficiency Anemia on Inpatients and Appropriate Discharge
Authors: Nain Ali Zulqar , Sehar Ambreen
Published: July 2022

Introduction: Anaemia is a condition in which the number of red blood cells is insufficient to meet physiologic needs; it is caused by many conditions, particularly iron deficiency. Aims and objectives: The main objective of the study is to analyse the management of iron-deficiency anemia on inpatients and appropriate discharge. Material and methods: This cross sectional study was conducted in DHQ hospital Sheikhupura with the permission of ethical committee of hospital. Data were collected from 100 patients. Participants were selected through randomly sampling technique. Iron deficiency criterion for men was defined as hemoglobin under 13 g/dL, and women under 12 g/dL, with ferritin less than 30 ng/dL for any patient. Diagnostic criteria in patients with congestive heart failure were ferritin below 300 ng/dL and transferrin saturation (TSAT) under 20%. Results: The data was collected from 103 patients. The only factors which emerged as statistically significant from the adjusted logistic regression analysis model were insufficient intakes of iron (OR = 7.39; 95% CI: 1.45-37.57) and vitamin C (OR = 6.14; 95% CI: 1.34-28.27), frequent (≥2 times per week) tea consumption (OR = 0.01; 95% CI: 0.01-0.08), infrequent (≤2 times per week) red meat consumption (OR = 3.71; 95% CI: 1.01-13.61), and the possession of a personal history of IDA (OR = 6.00; 95% CI: 1.45-24.76). Conclusion: It is concluded that Iron-deficiency anemia is also tricky in patients with chronic diseases. Iron supplementation has been shown to help reduce mortality in those with blood loss.
Posición anormal del disco articular y cambios morfológicos óseos. Hospital de la Policía Nacional de Guayaquil nº 2. 2018
Authors: Yulán Ceavichay Gino Andrés , Cañarte Luna Guillermo Andrés
Published: July 2022

Introducción: Entre los problemas más comunes de la articulación temporomandibular se encuentra el desplazamiento de disco. Las resonancias magnéticas proporcionan información del disco articular. Objetivo: Determinar si la posición anormal del disco articular causa cambios morfológicos óseos del cóndilo mandibular y la eminencia articular. Materiales y métodos: estudio imagenológico, descriptivo no experimental de corte retrospectivo. Muestra: 103 resonancias magnéticas de pacientes de 12 años en adelante, entre años 2012 al 2018; fueron observadas y analizadas. Resultados: Utilizando la clasificación en categorías de Nebbe, se destacó que el 65% de los pacientes se presentaron en categoría 1; el 22% de los pacientes se ubicó en categoría 2. Entre lo más relevante, basado en la clasificación de deformidades de Valladares, el cóndilo mandibular normal en el 83% del total de la muestra, cóndilo mandibular aplanado, en 13%.  Para la eminencia articular, usando la clasificación de deformidades de Kurita, la mayor relevancia fue para la forma sigmoidea con 64%, y la forma de caja con el 19%. Conclusión: No existe una relación del disco y cambios óseos, sin embargo, no existe una diferencia significativa (valor p > al 5% 0.05) que afirme esta no relación entre el disco articular y los cambios óseos.
واقع استخدام طلبة الجامعات في سلطنة عُمان لوسائل التواصل الاجتماعي أثناء التعلم عن بعد في ظل جائحة كورونا (كوفيد-19)
Authors: جمعة أمجد , السعودي شريف , اللواتي عصام , الراشدي إجلال
Published: July 2022

هدفت الدراسة الحالية التعرّف إلى واقع استخدام طلبة الجامعات في سلطنة عُمان لوسائل التواصل الاجتماعي أثناء التعلم عن بعد في ظل جائحة كورونا (كوفيد-19). وتكونت عينة الدراسة الفعلية من (1083) طالب وطالبة ممن يتلقون تعليمهم بالجامعات العُمانية بسلطنة عُمان والمسجلين في العام الدراسي الأكاديمي (2020-2021)، حيث تم اختيارهم بطريقة عشوائية.  ولتحقيق أغراض الدراسة اعتمد الباحثون في دراستهم المنهج الوصفي الذي يهدف إلى فهم وتفسير الظواهر. ومن أدوات الدراسة التي تم تطبيقها استبانة دوافع استخدام وسائل التواصل الاجتماعي لـ جمعة (2020). وتوصلت النتائج إلى أن أكثر وسائل التواصل الاجتماعي شيوعاً لدى طلبة الجامعات بسلطنة عمان أثناء فترة التعلم عن بعد الواتس اَب بنسبة (86%)، يليه الأنستجرام في المركز الثاني بنسبة (84%)، وسناب شات في المركز الثالث بنسبة 85%، بينما حل برنامج الفايبر في الترتيب الأخير بنسبة (0.1%). كما بلغ معدل استخدام الطالب الجامعي اليومي لوسائل التواصل الاجتماعي لأكثر من 4 ساعات يوميا نسبة (50%) من أفراد العينة. كما كشفت النتائج أن (47.8%) من أفراد العينة يستخدمون شبكات التواصل في جميع الأوقات و(43.7%) يستخدمونها فترة المساء. و بينت النتائج أن أكثر الموضوعات التي يشارك ويتفاعل معها الطالب الجامعي عبر وسائل التواصل الاجتماعي المختلفة كانت ذات طابع اجتماعي بنسبة (81.1%)، وفي المرتبة الثانية الموضوعات التعليمية بنسبة (53%) وخاصة في ضوء جائحة كورنا-19 وتحول التعليم الوجاهي إلى تعليم عن بعد.

الكلمات المفتاحية: وسائل التواصل الاجتماعي؛ التعلم عن بعد؛ جائحة كورونا؛ الدوافع الأكاديمية.
Taxonomical study of Caroxylon jordanicola (Eig) Akhani & Roalson (Amaranthaceae) in Al-Tar Caves, Karbala, Iraq
Authors: Al-Joboury Khansaa Rasheed , Aliwy Sukeyna Abaas
Published: July 2022

The present study dealt with the morphological, anatomical,trichomespollen grains,and ecological characteristics of Caroxylon jordanicola (EigAkhani & Roalson (Amaranthaceae) in Al-Tar Caves, Karbala, Iraq which belongs to the Amaranthaceae family. The results of the present study demonstrated that There are distinctive characteristics of the studied species distinguish it from other species and facilitate its diagnosis. The sample was diagnosed using the taxonomic keys of the Iraqi flora and the flora of neighboring countriesIn addition to some available research. The results of the morphological and anatomical features investigation provide really significant taxonomical value to distinguish the species. The results that showed that this species is annual to 40 cm, semi- spherical, lower leaves 1-3 cm, caduceus, other leaves to 2.5 mm, with broad, has non-glandular trichomes and glandular trichomes. The species recorded 7 μm the average thickness of the cuticle layer. cortex thickness was also recorded and measured, which was 210 μm. the average thickness of Phloem was 40μm, It has the presence of a bundle cap fibers (Bundle sheath) which consists of sclerenchyma fibers that appear in a ring around the Phloem. The average thicknesof  xylem was 190 μm and  pith thickness was 240 μm.
Evaluate and compare dental age with chronological age in hyperdivergent and hypodivergent growth pattern
Authors: Choudhary Sanna , Arora Kanika , Baijal Rheia , Goel Reena
Published: July 2022

Aim: To evaluate and compare dental age with chronological age of different facial patterns in growing patients. Materials and method: This study comprises of lateral cephalogram and panoramic radiographs of 100 subjects. Subjects were classified into two groups of 50 each on the basis of angular and linear measurements Group I – Hypodivergent and Group II – Hyperdivergent growth patterns respectively. Comparison between intergroups and within intragroup is made by using t –test. Result: Statistically significant results were obtained while comparing dental age with chronological age in hyperdivergent and hypodivergent subjects indicating hyperdivergent group had more advance dental age than hypodivergent. Conclusion: Orthodontic therapy should be started earlier in patients with hyperdivergent growth pattern than those with hypodivergent growth pattern.
Status of vitamin D level in newly diagnosed pemphigus vulgaris patients
Authors: Mishra Manasi , Samanta Maheswar , Mohanty Prasenjeet , Acharya Srikanta , Rattan Roma
Published: July 2022

Background: Pemphigus vulgaris (PV), one common type of pemphigus, that affects the skin and mucous membranes, produce keratinocyte acantholysis by desmoglein-3 autoantibodies. Many medical conditions, including autoimmune illnesses, have been linked to vitamin D deficiency. Aim of study: To measure vitamin D level of Pemphigus Vulgaris patients and compare that with healthy controls& severity of disease.  Material and Methods: Newly diagnosed PV patients (44) were compared to 50 healthy controls in this case-control study on vitamin D levels. At S.C.B. Medical College & Hospital, Odisha, the dermatology department chose all patients over a two-year period (2017-2019). Pemphigus vulgaris lesion severity ratings were used to measure the disease severity. The 25(OH) D levels in the blood were determined using the ECLIA method (Electro chemiluminescence immunoassay) in Cobas e411 analyzer. Analyses of the data included independent t-tests and pearson correlations. Results: Gender, age, and other characteristics of both groups were virtually identical. The study comprised 44 patients (27 females and 17 males) and 50 controls (including 19 men and 31 women). Eighty-six percent of patients had moderate to severe involvement, whereas 11% had minor lesions. Patients had Vitamin D levels of 14.44±9.03, compared to 32.88±15.66 for controls (p<0.05).
Evaluation of immunohistochemical activity of dentin-pulp organs of dog’s teeth after stimulation with laser, MTA, and theracal therapies
Authors: Elwardany Ehab Hammed Mustafa , Sherif Hany Abd Elhamid , Ali Mohamed Mounir , Mahmoud Hany Mahmoud
Published: July 2022

Objectives: This immunohistochemical study was performed to assess the different immunohistochemical activities in dentin-pulp organs in the pulp of mongrel dogs after stimulation with low-level laser (LLL), mineral trioxide aggregate (MTA), and TheraCal light-cured (LC) as pulp therapy and compare their effect with the conventional calcium hydroxide (Ca(OH)) cement material. Materials and Methods: A total of 8 male mongrel dogs 12-18 months old and weighing 10-15 kg were selected to be enrolled in this study. Animal choice, administration, surgical protocol, and provision were completed according to regular techniques standards by the Faculty of Veterinary, Cairo University, Egypt. All surgical techniques were accomplished under general anesthesia (GA) in a sterile operating room under aseptic circumstances with restricted isolation. The pulp exposure procedure was carried out through the preparation of a Class V cavity on the buccal surfaces of the animal premolar teeth. In each animal four premolar teeth were involved and allocated to four different groups grounded on the pulp therapy procedure (group I: LLL; group II: MTA; group III: TheraCal LC; and group IV; Ca(OH). The final cavity restoration was glass ionomer cement (GIC). The immunohistochemical analysis was completed following the established methods.
Evaluación del potencial de aislados de Trichoderma spp como inhibidor a nivel in vitro del crecimiento de tres aislados del género Fusarium spp
Authors: Sánchez Miranda María Delfina
Published: July 2022

El género Trichoderma spp representa un grupo de organismos muy importante en la agricultura moderna debido a que inhiben el crecimiento de hongos fitopatógenos. Sin embargo, se ha publicado que su comportamiento ecológico varía dependiendo de la región geográfica de donde proviene. En este estudio, se evaluó la capacidad de 17 aislados de Trichoderma spp nativos, para inhibir el crecimiento In vitro de tres aislados de Fusarium spp. Para el aislamiento de los hongos se utilizó la técnica de dilución seriada y el medio de crecimiento Papa Dextrosa Agar (PDA), posteriormente se evaluó el antagonismo contra tres aislados de Fusarium spp, mediante la técnica de cultivo dual. Los tres aislados de Fusarium spp se identificaron molecularmente perteneciendo a dos aislados F. equiseti y uno identificado como Fusarium spp. Se determinó el porcentaje de Inhibición del Crecimiento Radial (PICR), obteniéndose los siguientes resultados T. harzianum, T. asperellum y T. virens presentaron los porcentajes de PICR con 81.57%, 79.62% y 78.62% respectivamente, superando al resto de aislados. Los aislados T. harzianum, T. asperellum y T. virens, deben ser evaluados en condiciones de invernadero y campo para definir efectividad, establecer una aplicabilidad.
The basics for choosing energy-efficient working tools of tillage machines
Authors: Dzhabborov Nozim I. , Dobrinov Aleksandr V. , Sergeev Aleksandr V.
Published: July 2022

Improving the efficiency of technological tillage methods is primarily associated with developing existing tools and creating new types of working tools for tillage machines. Tillage efficiency improvement depends on the correct choice of the most energy-efficient working tools belonging to the same class of the technological process. This research aims to develop scientific baselines for choosing energy-efficient working tools of different structural designs based on the criteria of power consumption and quality of shallow tillage. The object of this research includes working tools for shallow and deep tillage. The research subject is the changes in the criteria chosen to evaluate the working tools’ efficiency. We involved mathematical modeling based on laws of science observed during tillage, carried out experiments and analyses, and summarised the experimental findings. The scientific novelty of this research justifies the criteria for evaluating the efficiency and quality of working tools used for shallow and deep tillage. The research relies on graphical and empirical dependencies describing the trends in efficiency evaluation criteria for tillage working tools with various operation speed modes. We discovered that to evaluate the efficiency and choose the most energy-efficient tillage working tool, one should use a system of criteria: specific tractive resistance of the active frontal area, terra-dynamic resistance coefficient, and the primary tillage quality parameters. The probability of compliance of the mean values of calculated and experimental findings (0.51–0.87) confirms the adequacy of proposed mathematical models describing changes in specific tractive resistance per unit of active frontal area and terra-dynamic resistance coefficient of tillage working tools. According to the research, when a more energy-efficient tillage working tool is chosen, the working tools under comparison belong to the same class of working tools based on the technological process principle and functioning conditions. Discovered trends in the changes in the efficiency evaluation criteria and the choice of energy-efficient tillage working tools for shallow and deep tillage are represented by empirical dependencies applicable in specific ranges of motion speed under certain functioning conditions. Consequently, we emphasized that further studies should justify the upper and the lower borders of the tillage working tools and terra-dynamic resistance coefficient in accordance with the agrotechnical quality indicators of tillage.
Detection of thermal pollution of urban reservoirs using the method of IR-radiometry based on the example of the Lake Kenon, Zabaykalsky Krai
Authors: Gurulev Alexander A. , Kazantsev Vyacheslav A.
Published: July 2022

Water bodies (e.g., rivers, lakes, and reservoirs) are an integral part of the urban environment. The infrastructure of the city affects their condition, in particular, pollution, including heat, which can lead to an increase in phyto- and zooplankton, including blue-green algae, and the appearance of toxins in the water. Identification of places where warm water is discharged into reservoirs is an urgent task. One of the methods of solving this problem is the monitoring of reservoirs from space. Thus, with the help of infrared satellite images, thermal anomalies are visible. In the work, we studied Lake Kenon located in the city of Chita. The satellite images were obtained from the Lansat-8. The channels used were 10 and 11, with a resolution of 60 meters. We revealed that (1) the optimal time for detecting thermal anomalies is the time before freezing in calm weather; (2) the cause of the thermal anomaly of this reservoir is a thermal power plant; (3) analysis of the last 5 years has shown that the water area with an increased surface temperature of the reservoir does not change; (4) the temperature gradient between cold and warm areas is 5°C; (5) the area of the heat spot does not exceed 10% of the total area of the lake. The above conclusions were confirmed using field measurements.
Involving 4th generation district heating technologies: residential buildings in remote areas of Russia
Authors: Glukhov Sergey V. , Glughova Mariya V. , Chicherin Stanislav V. , Zhuikov Andrey V. , Junussova Lyazzat R.
Published: July 2022

This study aims to justify the possibility of expanding the energy and economic efficiency of a district heating [DH] system. The case study territory is a remote area of the Omsk region (Russia); the method is electric heating. To address this issue, we (1) considered the potential of modernizing these DH systems, (2) analyzed available options, (3) designed the main and auxiliary heat generation equipment, and (4) committed a feasibility study. The design heat consumption was 0.24 MW. To achieve this goal, we suggested two heat pumps; their capacity was 280 kW, and the investment required to install two heat pumps of 150 kW was 2.6 billion rubles. The total capital cost was 4.0 billion rubles. The annual effect after the heat pumps were installed was 0.7 billion rubles. The payback period was 5.6 years; to decrease it, one should install multiple heat pumps on the consumer side. The reason is to avoid heat distribution losses. Replacing traditional DH plants with electric boilers is feasible only if the cost of heat is 6,600 rubles per MWh or above. This cost has already been achieved for several DH plants. Ground source heat pumps are viable at lower prices, approximately 4,100 rubles per MWh. This option is especially helpful in remote areas of the Omsk region where the billing tariff is already high. When modernizing the heat supply infrastructure of the northern areas of the Omsk region, one can increase annual electricity consumption by 6%, decrease tariffs, and become more ecologically friendly at the same time.
PENGARUH MODERNISASI ADMINISTRASI PERPAJAKAN, PENGETAHUAN PERPAJAKAN, SOSIALISASI PERPAJAKAN DAN SANKSI PERPAJAKAN TERHADAP KEPATUHAN WAJIB PAJAK ORANG PRIBADI DI WILAYAH KABUPATEN BEKASI
Authors: Haryanti Melinda Dwi , Pitoyo Bayu Seno , Napitupulu Andhika
Published: July 2022

The Effect of Tax Administration Modernization, Tax Knowledge, Tax Socialization, and Tax Sanctions on Individual Taxpayer Compliance in the Bekasi Regency Area. This study aims to examine and analyze the effect of tax administration modernization, taxation knowledge, tax socialization, and tax sanctions on individual taxpayer compliance in the Bekasi Regency area. The object of this research is an individual taxpayer with NPWP in Bekasi Regency. This type of research is quantitative research with descriptive approach method. The data collection technique in this study used questionnaires via google form. The sample selection method in this study is a random sampling method. The sample used is 100 individual taxpayers. The method of analysis using multiple linear regression analysis using SPSS version 23 program. Based on the results of the partial study, it shows that administrative modernization has no effect on individual taxpayer compliance. However, tax knowledge, tax socialization and tax sanctions have a positive and significant effect on individual taxpayer compliance. Simultaneously modernization of tax administration, knowledge of taxation, socialization of taxation, and tax sanctions simultaneously affect the compliance of individual taxpayers in the Bekasi Regency area.
THE EFFECT OF CASH FLOW AND CURRENCY EXCHANGE RATE ON FINANCIAL DISTRESS
Authors: Romadhina Anggun Putri , Fitriani Maulida Nur , Andhitiyara Revan
Published: July 2022

This study aims to test and obtain empirical evidence of the effect of cash flow and currency exchange rates on financial distress. This research was conducted at trading companies listed on the Indonesia Stock Exchange (IDX) during the 2014-2018 period. This research is a quantitative study using secondary data, namely data obtained from the company's annual financial statements that have been published by the Indonesia Stock Exchange (IDX). The population in this study are trading companies listed on the Indonesia Stock Exchange (IDX) during the 2014-2018 period. Sampling using purposive sampling method and obtained a sample of 51 companies. Data analysis used in this research is descriptive statistical analysis, classical assumption test using normality test, autocorrelation test, multicolonierity test, heteroscedasticity test, multiple linear regression analysis and hypothesis testing using the F test, T test and determination coefficient R² test. Processed with the help of the SPSS version 24 statistical program. The test results using a partial test show that cash flow proxied using operation cash flow is significant against financial distress and currency exchange rates are proxied using between significant profit comparisons to financial distress. Simultaneous test results show cash flow and currency exchange rates have a joint effect on financial distress. The test results using a partial test show that cash flow proxied using operation cash flow is significant against financial distress and currency exchange rates are proxied using between significant profit comparisons to financial distress. Simultaneous test results show cash flow and currency exchange rates have a joint effect on financial distress. The test results using a partial test show that cash flow proxied using operation cash flow is significant against financial distress and currency exchange rates are proxied using between significant profit comparisons to financial distress. Simultaneous test results show cash flow and currency exchange rates have a joint effect on financial distress
Plataformización
Authors: Poell Thomas , Nieborg David , van Dijck José
Published: July 2022

El presente artículo contextualiza, define y operativiza el concepto de plataformización. A partir de reflexiones sobre las plataformas desde diversas perspectivas académicas ⎯los estudios de software, la crítica de la economía política, los estudios empresariales y los estudios culturales⎯ desarrolla un enfoque integral para este proceso. La plataformización se define como la penetración de las infraestructuras, los procesos económicos y los marcos gubernamentales de las plataformas digitales en los diversos sectores y ámbitos de la vida, así como la reorganización de las prácticas y los imaginarios culturales que existen en torno a estas plataformas. Con base en el ejemplo de las tiendas de apps, mostramos cómo se puede emplear esta definición en la investigación.
El sesgo algorítmico y el enfoque del diseño sensible al valor
Authors: Simon Judith , Wong Pak-Hang , Rieder Gernot
Published: July 2022

En los últimos tiempos, ante el aumento de la conciencia de que los algoritmos informáticos no son herramientas neutrales, sino que al reproducir y amplificar los sesgos pueden causar daño, los intentos para detectar y prevenir dichos sesgos se han intensificado. Un enfoque que ha recibido gran atención en este sentido es la metodología del diseño sensible al valor (VSD, por sus siglas en inglés), el cual busca contribuir tanto al análisis crítico de los (des)valores en las tecnologías existentes como a la construcción de nuevas tecnologías que tomen en cuenta valores deseados específicos. Este artículo ofrece un breve panorama de las principales características del enfoque del diseño sensible al valor, analiza sus contribuciones a la comprensión y el abordaje de problemas relacionados con el sesgo en los sistemas informáticos, presenta un esbozo de los debates actuales en torno al sesgo algorítmico y la equidad en el aprendizaje automático y analiza de qué manera estos debates podrían beneficiarse de las ideas y recomendaciones derivadas del VSD. Al relacionar estos debates sobre los valores en el diseño y el sesgo algorítmico con la investigación sobre los sesgos cognitivos, concluimos destacando nuestro deber colectivo no solo de detectar y contrarrestar los sesgos en los sistemas de software, sino también de abordar y remediar sus orígenes sociales.