bluuebunny/crossref_metadata_2025 huggingface dataset:
An attempt to apply the kinematic method of rigid solids in the study of bearing capacity of shallow foundations
Authors: Bencheikh Messaouda Boutahir Born , Aidoud Assia , Zohra Benamara Fatima , Lazhar Belabed , Meriem Dorbani
Published: January 2022

In the geotechnical engineering field, shallow foundations are frequently needed to ensure good fieldwork stability. They are also intended to permanently and uniformly transmit all load pressure on the seating floor. However, numerous mechanical constraints, such as bearing capacity of foundations, durability, stability, design of shallow foundations, lead, unfortunately, to a serious realization challenge. Finding an adequate solution presents the main goal and effort of both scholars and professionals. Indeed, the corresponding drawback is observed through the high number of reported damages that occurred in the structure of foundations and the punching failure.

The failure mechanisms of shallow foundations, verified in full size or on scale models, show “sliding surfaces” and rigid (solid) blocks, which can be described with the kinematic method of rigid solids.

The main objective of this study is the application of the kinematic method of rigid solids in the study of the stability of shallow foundations with respect to punching, the purpose of which is to determine the bearing capacity factors Nc, N
γ, and the passive earth pressure coefficient Kp of foundations. In this context, two mechanical models have been proposed with 5 and 7 rigid solids, and a program developed via the MathCAD environment is applied to check the validity of the two previous models. The kinematic method of rigid solids gives results very close and comparable with that of Caquot/Kerisel for the factors of the bearing capacity and passive earth pressure coefficient - the ratio Kp - according to the five- and seven-solid model.
1st International Seminar on Linguistics & Polyglot Studies
Authors: Kazakov G.
Published: January 2022

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Comments on the place of polyglottery studies in Russian psycholinguistics
Authors: Nikulicheva D.
Published: January 2022

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Latest trends in multilingualism, language policy and language education in Ireland and in Europe
Authors: Riain S.O.
Published: January 2022

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Evaluation of the Lateral Vibration Response of Footbridges under Uncertainty Conditions
Authors: García-Cuevas Rocío , Jiménez-Alonso Javier F. , Renedo M. C. Carlos , Martinez Francisco , Díaz Iván M.
Published: January 2022

The evaluation of the vibration performance of footbridges due to walking pedestrians is an issue of increasing importance in current footbridge design practice. The growing trend of slender footbridges with long spans and light materials has led to serviceability problems in lateral vibrations, which occur when the number of pedestrians reaches a “critical number”. Considering the mode of vibration in which the lateral instability is more likely to develop, the structural response depends on the modal characteristics of the footbridge; in particular, the natural frequency and the damping ratio. These modal parameters are stochastic variables, as it is not possible to determine them without a level of uncertainty. Thus, the purpose of this paper is to obtain the value of the lateral dynamic response of slender footbridges with a certain confidence level under uncertainty conditions. The uncertainties of those modal parameters are considered using a probabilistic approach. Both the natural frequency and the damping ratio are modelled as uncorrelated random variables that follow a predetermined probabilistic distribution function. Consequently, the structural response will also be described by a probabilistic distribution function, which can be estimated through Monte Carlo numerical simulations. As a result, the study allows the footbridge lateral response and the critical number of pedestrians to be calculated for different confidence levels and load scenarios, especially for crowd densities above the “critical number”.
Immunotherapy in skin cancers - A narrative review
Authors: Anjali V. T. , Kaliyadan Feroze
Published: January 2022

Immunotherapy, in the context of cancers, involves the use of various drugs to stimulate the immune system to target cancer cells. Immunotherapy is being increasingly used for cutaneous malignancies, especially melanoma. Immunity plays an important part in protection against cancer. One of the factors limiting the effectiveness of host immunity is improper recognition of cancer cells. Sometimes, despite recognizing the cancer cells as abnormal, the immune response, for various reasons might not be strong enough to deal effectively with the cancer cells. Immunotherapy basically tries to address the two points mentioned above by improving the capacity of the immune system to recognize and effectively destroy cancer cells. In skin cancers, immunotherapy is best established for melanomas, but is increasingly being used for non-melanoma skin cancers too. This article reviews some of the general concepts about immunotherapy in cancer and discusses in detail, the available options and future possibilities in the applications of immunotherapy in skin cancer.
A METHOD FOR DETERMINING STOICHIOMETRIC COEFFICIENTS USING MINORS OF A MATRIX
Authors: Lombaard Rainier
Published: January 2022

Spinel materials often have complex structures and as a result, balancing of reactions with these compounds by traditional methods become very time consuming. A method to calculate the stoichiometric coefficients for chemical reactions using first a modified matrix-inverse method and then an optimised method is proposed. Both methods are explored using linear algebra and the result demonstrated using a typical chromite reduction reaction.
Asymmetric syntheses of (+)- and (–)-collybolide enable reevaluation of kappa-opioid receptor agonism
Authors: Shevick Sophia , Freeman Stephan , Tong Guanghu , Russo Robin , Bohn Laura , Shenvi Ryan
Published: January 2022

The fungal metabolite collybolide attracted attention as a non-nitrogenous, potent and biased agonist of the kappa-opioid receptor (KOR). Here we report a 10-step asymmetric synthesis of this complex sesquiterpene that enables facile access to either enantiomer. The synthesis relies on a diastereoselective α-benzoyloxylation to install the buried C6 benzoate and avoid irreversible translactonization of the congested, functionally dense core. Neither enantiomer, however, exhibited KOR agonism, indicating that collybolide has been mischaracterized as a KOR agonist and leaving open the basis for antipruritic effects in mice.
A simple predictor of interface orientation of mesogenic fluids and its implications for organic semiconductors
Authors: Boehm Belinda , Huang David
Published: January 2022

From classical molecular dynamics simulations, we identify a simple and general predictor of molecular orientation at solid and vapour interfaces of isotropic fluids of anisotropic particles based on their shape and interaction anisotropy. For a wide variety of inter-particle interactions, temperatures, and substrate types within the range of typical organic semiconductors and their processing conditions, we find remarkable universal scaling of the orientation at the interface with the free energy calculated from pair interactions between close-packed nearest neighbours and an empirically derived universal relationship between the entropy and the shape anisotropy and bulk volume fraction of the fluid particles. The face-on orientation of fluid particles at the solid interface is generally predicted to be the equilibrium structure, although the alignment can be controlled by tuning the particle shape and substrate type, while changing the strength of fluid--fluid interactions is likely to play a less effective role. At the vapour interface, only the side-on structure is predicted, and conditions for which the face-on structure may be preferred, such as low temperature, low interaction anisotropy, or low shape anisotropy, are likely to result in little orientation preference (due to the low anisotropy) or be associated with a phase transition to an anisotropic bulk phase for systems with interactions in the range of typical organic semiconductors. Based on these results, we propose a set of guidelines for the rational design and processing of organic semiconductors to achieve a target orientation at a solid or vapour interface.
A Potentially Limitless Chiral Pool via Conglomerate Crystallisation: Unidentified Spontaneous Resolution in the CSD.
Authors: Walsh Mark , Barclay James , Begg Callum , Xuan Jinyi , Kitching Matthew
Published: January 2022

Conglomerate crystallisation is the behaviour responsible for spontaneous resolution and the discovery of molecular chirality by Pasteur. The phenomenon of conglomerate crystallisation of chiral organic molecules has been left largely undocumented and offers synthetic chemists a potential new chiral pool not reliant on biological systems to supply stereochemical information. While other crystallographic behaviours can be interrogated by automated searching, conglomerate crystallisations are not identified within the Cambridge Structural Database (CSD) and are therefore not accessible by conventional means. By conducting a manual search of the CSD, a list of over 1,700 chiral species capable of conglomerate crystallisation was curated by inspection of the synthetic routes described in each publication. The majority of these are produced by synthetic chemists who seldom note and rarely exploit the implications this phenomenon can have on the enantioenrichment of their crystalline materials. We propose that this list represents a limitless chiral pool which will continually grow in size as more conglomerate crystals are synthesised and recorded.
The Effect of Chemical Representation on Active Machine Learning Towards Closed-Loop Optimization
Authors: Pomberger Alexander , Pedrina McCarthy Antonio , Khan Ahmad , Sung Simon , Taylor Connor , Gaunt Matthew , Colwell Lucy , Lapkin Alexei
Published: January 2022

Multivariate chemical reaction optimization involving catalytic systems is a non-trivial task due to the high number of tuneable parameters and discrete choices. Closed-loop optimization featuring active Machine Learning (ML) represents a powerful strategy for automating reaction optimization. However, the translation of chemical reaction conditions into a machine-readable format comes with the challenge of finding highly informative features which accurately capture the factors for reaction success and allow the model to learn efficiently. Herein, we compare the efficacy of different calculated chemical descriptors for a high throughput generated dataset to determine the impact on a supervised ML model when predicting reaction yield. Then, the effect of featurization and size of the initial dataset within a closed-loop reaction optimization was examined. Finally, the balance between descriptor complexity and dataset size was considered. Ultimately, tailored descriptors did not outperform simple generic representations, however, a larger initial dataset accelerated reaction optimization.
VALUE CHAIN ANALYSIS OF FISH IN KARAIYAMAI RURAL MUNICIPALITY, BARA DISTRICT OF NEPAL
Authors: Paudel Anish , Paudel Amrita , Gurung Bikash , Shrestha Sushil , Poudel Uttam , Adhikari Kalika Bahadur
Published: January 2022

The research entitled “Value chain analysis of fish in Karaiyamai Rural Municipality, Bara district of Nepal” was conducted in 2020 focusing on the chain of actors involved in supplying inputs to the farmers and thereby supplying finished product to the ultimate consumers through various market intermediaries. The survey research design was used for the study where respondents (60 farmers of Karaiyamai Rural Municipality and 15 traders of Jeetpursimara Sub-Metropolitan City) were selected using simple random sampling techniques. Primary data was collected using pre-tested semi-structured questionnaire and secondary data were obtained from various articles and related documents. Descriptive statistics and indexing techniques were used for the analysis of data for which MS-Excel and SPSS-23 were used. Average cost of production was NRs. 996516.92/ha. The average productivity of fish in the study area was highest (7024.42 Kg/ha) than the national average productivity (4920 Kg/ha), and district average (5298 Kg/ha). Various production and marketing problems were faced by respondents as untimely availability of inputs, poor water supply units, and poor storage facilities. Despite these problems, the fish production was a profitable business (B: C ratio: 2.01) with high gross margin value. The marketing channel of input suppliers – producers – wholesalers – retailers – consumers was found effective. There was a low marketing margin and higher producer share on the retail price that indicates an efficient market system. Hereby, the study of value chain actors and construction of value chain map symbolizes; there are good prospects of fisheries business with commercialization and risky but profitable enterprise.
FARMER’S KNOWLEDGE ON ANTI-MICROBIAL RESISTANCE, THEIR PRACTISE OF ANTIMICROBIALS USAGE AND BIOSECURITY STATUS OF POULTRY FARMS IN KATHMANDU VALLEY AND CHITWAN DISTRICT, NEPAL
Authors: Dhakal Sushan , Gompo Tulsi Ram
Published: January 2022

The poultry industry has transformed into one of the vibrant economic activities in Nepal, contributing to almost 4% of the national GDP. A cross-sectional survey was conducted among the poultry farmers of Kathmandu valley and Chitwan district to assess the knowledge of antimicrobial resistance (AMR) among the farmers; their practice of antimicrobial use in poultry productions and the biosecurity status of their poultry farms. A semi-structured questionnaire was used to interview a total of 112 respondents, 56 each from the study sites. Nineteen percent (11/56) of the farmers from the Kathmandu valley and 16% (9/56) of that of Chitwan district knew about the antimicrobial resistance (AMR). About 53.6% (30/56) of farmers from Kathmandu valley and 60.7% (34/56) from Chitwan district followed the drug’s withdrawal period. About 33.9% (19/56) of the farmers of Kathmandu valley and 41.1% (23/56) of Chitwan could tell the names of antibiotics they used in their farms. Doxycycline (25.9%, 29/112) was the most used antibiotic followed by Tylosin (21.5%, 24/112), Colistin (18.75%, 21/112), Ciprofloxacin (13.4%, 15/112) and Neomycin (12.5%, 14/112) in both districts. On average of 41.05% (46/112) farmers knew about the harmful effects of drug residues present in the poultry products. 69.6% (39/56) of poultry farms in Kathmandu valley 53.6% (30/56) of Chitwan district had fences. All the farmers of both districts had separate boots for their farms (100%). 8.9% (5/56) of farms in Chitwan district and 16.1% (9/56) of farms in Kathmandu valley disinfected vehicles entering the farms. Nearly 53.6% (30/56) of the farms in Kathmandu valley and 46.4% (26/56) in Chitwan were in close contact with wild birds. Identifying the critical gaps in knowledge and practice of antimicrobials and improving the farms’ biosecurity status could address the issues of AMR in poultry. We suggest a reduction of antimicrobials in the poultry production by adopting alternative measures.
PHENOTYPIC CHARACTERIZATION OF GOAT ECOTYPES IN NORTHWESTERN TUNISIA
Authors: Khemiri H. , M’Hamdi N. , Darej C. , Chniter M. , Kthiri M. , Baazaoui H. , M’Hamdi H. , Moujahed N.
Published: January 2022

The study aimed to identify and characterize the phenotype of goat genetic resources in NorthWestern Tunisia. Observation of physical attributes and morphology and morphometrical measurements were employed for data collection. Five hundred fifty adult heads including 440 females and 110 males from three governorates (Bizerte, Beja, and Jendouba) were studied. Twenty-six parameters were evaluated. The results showed that 67.3% of the females and 7.11% of the males had a straight profile and 61.68% of the females had curled horns. Besides, we found that 83.41% of animals do not have pendants, 82.94% have a goatee and 80.28% of them are horned. The average length of the head was 22.22 ± 2.29 cm. The length of the body was 62.13 ± 6.54 cm, the length of the pelvis was 16.55 ± 2.05 cm, and the length of the tail averaged 9.84 ± 2.91 cm. The width of the hips was 13.10 ± 1.75 cm, the width of the ischium was 10.16 ± 6.75 cm. While the width of the chest was 40.93 ±4.65 cm. Besides, sex is a very highly significant factor of variation for the majority of studied traits. Finally, regarding the studied traits, Multiple Factorial Analysis (MFA) and Hierarchical Ascending Classification (CAH) identified five classes in the studied population.
DETERMINATION OF RACE PERFORMANCE’S FACTORS OF ARABIAN PUREBRED TUNISIAN HORSES AND THE IMPACT OF INTRODUCTION OF OCCIDENTAL PUREBRED HORSES INTUNISIA
Authors: Bensouf Ikram , M’Hamdi Naceur , Ouled Ahmed Hatem , Lasfar Faten , Ben Aoun Belgacem , Trimeche Abdessalem
Published: January 2022

The aim of the study is to investigate the effects of age, sex, running distance and origin of horse on racing speed for Purebred Arabian horse in Tunisia. Although the occidental type is known to be more successful in racing than the Tunisian type, we undertook this study to try to confirm or deny this supremacy for a sample of racehorses born in Tunisia from occidental father. A total of 333 racing records were considered for race performance. The effects of environmental factors on (sex, age, father’s origin, race distance, number of race seasons) race performance were analyzed using the least-squares method(LSM).The racehorses studied were all Arabian Purebred horses in operation at the racecourse of Ksar Said from 2010 to 2020. They are 180 horses, 90 horses born of a Tunisian father, and 90 horses born in Tunisia ofthe occidentalfather. These horses are the best and most successful in their category. The study revealed that the gender and age effectswere statistically insignificant onracingperformance. Race performance was significantly influenced by the distance and the origin of the father which affirms the improving role of the occidentalhorse in the Tunisian population.
Density and Coefficient of Thermal Expansion of 12X18H10T Steel in the Temperature Range from 100-850 ˚C for WWER Reactors
Authors: Alhmoud A. Z. , Kruglov A. B.
Published: January 2022

The article presents the results of studying the density of steel 12Kh18N10T and the coefficient of thermal expansion TEC (α) in the temperature range from 100 to 850˚С. The measurements were carried out using a DIL-405 C dilatometer. Steel 12Kh18N10T will replace traditional TVEL cladding materials, which are made of zirconium material. The cladding made of steel 12X18H10T can be used as a Tolerant fuel. It is shown that the thermophysical properties and accurate dilatometric results of studies of steel 12Kh18N10T make it possible to use steel cladding in fuel assemblies of a VVER reactor. The article presents the results of comparison with similar data from the State Service of Standard Reference Data system.
Social and Economic Aspects of Tourism Marketing in the Chernobyl Exclusion Zone
Authors: Popova T. S.
Published: January 2022

The paper considers the main provisions of the impression economy, the greatest potential of which is revealed in the tourism business. Selling travelling emotions, adventure hobbies and new knowledge is increasingly economically profitable, and travel companies are expanding their list of offers. Recently, many new, sometimes very strange, types of tourism have appeared. The development of technological progress in the twentieth century was the impetus for the development of an unusual type of tourism - industrial. A separate subspecies of industrial tourism is nuclear. More than a decade after the accident, the Chernobyl zone remains uninhabitable. But even so, it has a future. Officials and tour operators agree that tourism in Chernobyl is not only considerable economic benefits for the country, but also an opportunity to tell the world your story.
Management Commitment to the Goals of Production Safety as a Formation Factor of Integrated Safety of Industrial Enterprise Management System
Authors: Lyskova I. E.
Published: January 2022

The paper actualizes the political, social and economic, cultural foundations of the formation of a culture of industrial safety of industrial enterprises. The structural and substantive aspects of the management's commitment to the goals of industrial safety are revealed. A general analysis of the current regulatory framework defining the methodological foundations for the formation of an integrated safety management system of industrial enterprises in the Russian Federation is proposed.
АНАЛИЗ ЦИФРОВИЗАЦИИ ГОСУДАРСТВЕННОГО УПРАВЛЕНИЯ: РЕГИОНАЛЬНЫЙ КОНТЕКСТ
Authors: Берман Светлана
Published: January 2022

В данной статье рассматривается процесс цифровизации системы государственного управления в регионах Российской Федерации. Сравнительный анализ уровня цифровизации проведен в Республике Татарстан, Тюменской области, Хабаровском крае и Архангельской области, Республике Ингушетия и Республике Калмыкия. Объекты исследования были отобраны исходя из позиции, занимаемой субъектом в рейтинге «Цифровая Россия», что позволило сравнить «лидеров», «середнячков» и «аутсайдеров». В процессе подготовки статьи был использован метод расчета интегрального индекса, в основу которого положена методика Всемирного банка, доработанная автором исследования для регионов России. В результате анализа сделаны выводы об общих и специфических проблемах развития цифровизации в государственном управлении на региональном уровне, предложены примеры зарубежного опыта для их решения.
АЛГОРИТМЫ ПОВЕДЕНИЯ И МОТИВАЦИЯ ПРЕДСТАВИТЕЛЕЙ ДЕЛОВОЙ СФЕРЫ В КОРРУПЦИОННЫХ СИТУАЦИЯХ
Authors: Лимкина Надежда
Published: January 2022

В данной статье рассматриваются причины и способы коррупционного взаимодействия предпринимателей и власти. Цель эмпирического исследования – оценка количественных и качественных параметров коррупционного поведения предпринимательского сообщества при взаимодействии с органами государственной власти. В ходе подготовки статьи применены общенаучные методы исследования (анализ, синтез, дедукция, индукция), статистико-экономический метод, социологический анализ данных, полученных в результате проведения социологического опроса. Анализируются следующие показатели деловой коррупции: частота оказания влияния бизнесменов на чиновников с помощью неформальных прямых или скрытых платежей, формы воздействия на должностных лиц, цели неофициальных платежей. В результате установлены мотивы и алгоритмы поведения бизнесменов в коррупционных взаимоотношениях, частота обращения предпринимателей к коррупционным практикам, основные коррупциогенные сферы деловой среды. Полученные выводы могут быть использованы при разработке программных мероприятий по противодействию коррупции.
Determining factors in MSMEs success: An empirical study in Mexico
Authors: Molina-Sánchez Rubén , García-Pérez-de-Lema Domingo , López-Salazar Alejandra , Godínez-López Roberto
Published: January 2022

This work empirically analyzes the competitive factors that help make micro, small, and medium enterprises (MSMEs) successful. To do this, an empirical study with a sample of 614 companies in Guanajuato, Mexico, has been carried out. The results of the binary logistic regression analysis show that quality, technology, and innovation are the main variables that determine a company’s success. These findings could provide guidelines to help MSMEs improve their competitiveness, and they could help public administrations better support MSME growth.
Exploring the impact of student developed marketing communication tools and resources on SMEs performance and satisfaction
Authors: Cromhout Dylan , Duffett Rodney
Published: January 2022

A number of SMEs lack the essential marketing skills, knowledge, tools and resources, and financial access to ensure the survival of their businesses. Service learning could be used as an effective pedagogy for assisting SMEs with vital marketing communication (MC) strategies via the development of tools and resources that may increase business growth and sustainability. The primary research objective was to evaluate SMEs’ satisfaction regarding performance factors, and student developed MC tools and resources that were implemented via a MC service learning programme (in the form of student-run agencies). The inquiry utilized the triad service learning model and quality assurance cycle to apply an evaluation research design that was substantiated by the expectancy-disconfirmation paradigm. A survey was conducted among 107 SME owners and managers via a structured questionnaire. The student developed MC tools and resources and their perceived usefulness resulted in a positive influence on a number of performance factors among SMEs. MC tools and resources such as a customer database, email address, and Facebook page had the largest influence on performance factors. Performance factors such as an increase in sales, new customers, brand awareness, competitive advantage, business efficiency, and motivation of employees were found to have a positive influence SME satisfaction. Further inquiry could replicate the study via various marketing-related service learning programmes in different countries that have divergent cultures, economics and contexts.
Assessing an effective collaboration in higher education: A study of students’ experiences and challenges on group collaboration
Authors: Lailiyah Malikhatul , Setiyaningsih Lian Agustina , Wediyantoro Prilla Lukis , Yustisia Karlina Karadila
Published: January 2022

Studies emphasize that collaboration remains an essential part of learning and working in the 21st century. This study seeks to report on the group collaboration of higher education students. Using Explanatory sequential mixed method design, this study tried to discuss the students’ experiences and challenges on group collaboration environment in the online learning cases. Adopting  Razmerita and Kirchner's (2014) questionnaire, 287 students involved in this study. The result indicated that overall students performed positive perception on group collaboration. In addition, to have deep analysis, 15 students were interviewed. This study contributes to an understanding of how students perceived collaboration and how they explain the obstacles recognized in their classes.DOI: 10.26905/enjourme.v6i2.6971
Theoretical Issues with Rayleigh Surface Waves and Geoelectrical Method Used for the Inversion of Near Surface Geophysical Structure
Authors: Çakır Özcan , Coşkun Nart
Published: January 2022

We numerically simulate the field measurements of Rayleigh surface waves and electrical resistivity in which the target depth is set to be less than 50-m. The Rayleigh surface waves are simulated in terms of fundamental mode group and phase velocities. The seismic field data is assumed to be collected through a conventional shot-gather. The group velocities are found from the application of the multiple filter technique in a single-station fashion while for the phase velocities the slant stacking, or linear radon transform are applied in fashion of multichannel analysis of surface waves (MASW). The average seismic structure from the source to the receiver (or geophone) is represented by the group velocity curve while the average seismic structure underneath the geophone array is represented by the phase velocity curve. The single-station group velocity curves are transformed into local group velocity curves by setting a linear system through grid points. The shear-wave velocity cross section underneath the examined area is constructed by inverting these local group velocity curves. The electrical resistivity structure of the underground is similarly studied. The field compilation of the resistivity data is assumed to be completed by the application of the multiple electrode Pole-Pole array. The actual resistivity assemble underneath the analyzed area is inverted by considering the apparent (measured) resistivity values. Unique forms such as ore body, cavity, sinkhole, melt, salt, and fluid within the Earth may be examined by joint interpretation of electrical resistivities and seismic velocities. These formations may be better outlined by following their distinct signs such as high/low resistivities and high/low seismic velocities. Doi: 10.28991/HEF-2021-02-03-01 Full Text: PDF
Analytical Solution of Unsteady-state Forchheimer Flow Problem in an Infinite Reservoir: The Boltzmann Transform Approach
Authors: Adeyemi Temitayo Sheriff
Published: January 2022

For several decades, attempts had been made by several authors to develop models suitable for predicting the effects of Forchheimer flow on pressure transient in porous media. However, due to the complexity of the problem, they employed numerical and/or semi-analytical approach, which greatly affected the accuracy and range of applicability of their results. Therefore, in order to increase accuracy and range of applicability, a purely analytical approach to solving this problem is introduced and applied. Therefore, the objective of this paper is to develop a mathematical model suitable for quantifying the effects of turbulence on pressure transient in porous media by employing a purely analytical approach. The partial differential equation (PDE) that governs the unsteady-state flow in porous media under turbulent condition is obtained by combining the Forchheimer equation with the continuity equation and equations of state. The obtained partial differential equation (PDE) is then presented in dimensionless form (by defining appropriate dimensionless variables) in order to enhance more generalization in application and the method of Boltzmann Transform is employed to obtain an exact analytical solution of the dimensionless equation. Finally, the logarithms approximation (for larger times) of the analytical solution is derived. Moreover, after a rigorous mathematical modeling and analysis, a novel mathematical relationship between dimensionless time, dimensionless pressure, and dimensionless radius was obtained for an infinite reservoir dominated by turbulent flow. It was observed that this mathematical relationship bears some similarities with that of unsteady-state flow under laminar conditions. Their logarithm approximations also share some similarities. In addition, the results obtained show the efficiency and accuracy of the Boltzmann Transform approach in solving this kind of complex problem. Doi: 10.28991/HEF-2021-02-03-04 Full Text: PDF
Investigation of Petrographic and Diagenetic Properties of Asmari Reservoir Cap Rock, SW Iran
Authors: Abbasi Samira , Pourmorad Saeid , Mohanty Ashutosh
Published: January 2022

Many problems in the production and development of oil fields lie in the correct and accurate assessment of the reservoir cap rock. Ramshir oil field is located 130 km southeast of Ahvaz and is one of the most important oil fields in the southwest of the country. To evaluate the petrographic and diagenetic properties, 300 thin microscopic sections were studied. According to petrographic studies, it was found that the cap rock in Ramshir oil field is composed of more evaporative sediments (mainly anhydrite with some gypsum) with some non-evaporative sediments (marl, carbonate and bituminous shale). The most important diagenetic processes in the study area were considered to be dolomitization, cementation, compaction, anhydrite, recrystallization and substitution. Petrographic and diagenetic studies suggest a swamp-swamp environment for this environment. Lithological changes are a sign of hot, humid, hot and dry weather during sedimentation of the cap rock of this field. Doi: 10.28991/HEF-2021-02-03-06 Full Text: PDF
As Práticas Educativas e a relação com a evasão escolar no PROEJA nas dissertações de Mestrado sobre esse tema disponíveis na BDTD.
Authors: Costa Júlio César , Domingues Luís Augusto da Silva
Published: January 2022

Práticas educativas podem motivar os alunos e influenciar na permanência escolar?  Este estudo tem como pressuposto que a maneira como se dão as práticas educativas e pedagógicas durante os processos de ensino aprendizagem contribuem para permanência do aluno na escola, apresentando a evasão também como consequência de práticas que interferem no processo de aprendizagem. A evasão no PROEJA, objeto de estudo abordada em trabalhos acadêmicos em forma de dissertação de mestrado, disponíveis na Biblioteca Digital de Teses e Dissertações contêm apontamentos que contribuem com a averiguação dessa hipótese, mas sem descartar o papel que o meio social exerce sobre esses indivíduos. Através desse recorte foi possível averiguar como esse problema foi abordado nessas pesquisas e a relação que se revelam com as Práticas Educativas, constatando-se que essa suposição é verdadeira, exigindo uma postura diferente das instituições e dos educadores desse programa, aperfeiçoando e adotando práticas educativas inovadoras e significativas que possam contribuir com maior engajamento dos estudantes, melhor aproveitamento na assimilação dos conteúdos abordados e também na contraposição da evasão escolar nessa modalidade.
Assessment of the Effect of Clinical Aspects of the Course of Combined Pathology (HIV Infection and Tuberculosis) on the Spread of Mycobacteria of Tuberculosis in Foci, as One of the Main Risk Factors for Infection
Authors:   Altai State Medical University, Barnaul, Russian Federation, Asmanova M. A. , Lukyanenko N. V. ,   Altai State Medical University, Barnaul, Russian Federation
Published: January 2022

Introduction: The article presents an analysis of the state of the immune system of HIV-infected patients with tuberculosis, the rate of recurrence of tuberculosis in HIV-infected people against the background of insufficient preventive therapy against HIV-infection and tuberculosis. Aim: To assess the effect of clinical aspects of the course of combined pathology (HIV infection and tuberculosis) on the spread of isolation of bacteria of tuberculosis mycobacteria as one of the main risk factors for infection in foci. Materials and methods: comparative analysis of isolation of bacteria of tuberculosis mycobacteria among patients with combined pathology (tuberculosis and HIV) was carried out (main group): determination of CD4 lymphocyte cell number and isolation of tuberculosis mycobacteria (n = 100). The number of TB recurrences in the main group (100 patients) and comparison group (TB patients) – 100 patients were studied. Data processing was carried out using the calculation of intensive and extensive indicators, the calculation of the standard error of the average (m). Statistical analysis was performed using Microsoft Excel. The results testified: the impact of the clinical course in tuberculosis patients with HIV infection characterized by an immunodeficiency condition, the presence of stages of 4B and 4V HIV infection (65,0 (95% RI:55;74)) and the recurrent course of tuberculosis in 25% (95 RI:17,5;34) is 1.4 times higher than in tuberculosis and is one of the main risk factors for infection in foci.
Serbuk Biji Asam Jawa (Tamarin Dusindica L) untuk Pengelolaan Limbah Industri Cair Tempe (Studi Kasus Mataram)
Authors: Fitriah Leny , Agustini Dwi
Published: January 2022

Most of the tempe industry have not been equipped with a waste water treatment unit. It is usually a water soaked soybeans and soybean excess water is still discharged directly in the into the environment. Liquid waste industrial of tempeh contain high organic materials. One of the process for wastewater treatment is coagulation with the addition of a positively charged polyelectrolyte in tempeh wastewater as negatively charged. One of plants in Indonesia that can be used as an alternative coagulant is tamarind seeds (Tamarindus indica, L).it can be used for wastewater treatment is more economical. The aims of this experiment is to determine the optimum stirring time, optimum pH of the waste and optimum coagulant dosage for treatment of the tempeh wastewater with coagulant tamarind seed powder. The experiment studied were stirring time, the pH of thetempeh wastewater and coagulant dosage to the percentage decrease in turbidity and COD (Chemical Oxygen Demand). The variables in the experiment were stirring time (10,15, 20, 25 and 30 minutes), the pH of the waste (3; 3.5; 4; 4 and 5) and the dosage of tamarind seed powder (100, 300, 500, 700, and 900 mg / L). COD testing methods is closed reflux method by spectrophotometry and turbidity testing using Turbidimeter. The results showed that the with coagulant tamarind seed powder effectively lowered cod levels and the dryness of tempeh liquid industrial waste. The optimum pH obtained is pH 4, optimum stirring time is 25 minutes and the increase in optimum coagulant dose is 500 mg with a percentage decrease in COD levels and noise by 90.57% and 78.94%.
 Key words: liquid waste; sour power; turbidity; COD
Saraus de Artes Integradas e Educação Popular: Desafios e Perspectivas
Authors: vieira Thaynã fabiano do rosário , Lima André Meyer Alves de , Earp Ana Célia de Sá , Santos Aruam Galileu Pereira , Castanheira Lucas Dias Iglezias , DESTERRO SENDY BLANC DA SILVA DO , Moreira Yasmin Rodrigues , Pepe Moises Luiz , Santos Rayanne Cristine Abreu dos , Costa Dário Barroso Aragão , ARAUJO VITORIA PEDRO E , Laranja Taciana Moreira Barbosa
Published: January 2022

Uma das marcas mais características das culturas de festa (RUFINO e SIMAS, 2019) é a coletividade, sua circularidade. Através do conjunto, saberes são passados e transpassados - entrelaçando e formand
A comparative assessment of GSM and UMTS Networks
Authors: Ukoette Jeremiah Ekah  , Chibuzo Emeruwa
Published: January 2022

It is common knowledge that the transition of mobile networks from one generation to another is basically for the improvement in the network’s Quality of Service (QoS). Bearing this in mind, we will assumme that the Universal Mobile Telecommunication System (UMTS) will outperform the Global System for Mobile Communication (GSM), hence, the motivation to conduct this study in Calabar, Nigeria, for four mobile networks; MTN, Airtel, Globacom and 9mobile. With the aid of a TEMS investigation software installed in a laptop, a measurement campaign was carried out and log files collected, with focus on Call Setup Success Rate (CSSR), Dropped Call Rate (DCR), Handover Success Rate (HOSR), Call Setup Time (CST), network coverage and network quality. The collected data was analyzed with the aid of a TEMS discovery software. The analyzed data for each Key Performance Indicator (KPI) was compared with the minimum benchmark of the telecommunications regulatory body, the Nigerian Communication Commission (NCC). Result reveal that there was no outright improvement in the QoS and there was fluctuation in the QoS provided by the network operators. We therefore conclude that the network operators, either did not make accurate planning before installing their base stations or do not optimize their networks frequently and this led to poor QoS in most cases.
KEADILAN GENDER DALAM ISLAM (Telaah Atas Diskursus Hak Rujuk Perempuan dalam Hukum Keluarga Islam)
Authors: Aziz Muhammad , Fahruddin Ahmad Hanif
Published: January 2022

Religius teachings that are considered to have long oppressed womenthe teachings that have been domination by men have been used as a justification for community perception that are very detrimental to women.however,this criticism of gender inequality in discusseions with human rights does not only return to the misperception of the people.feminists also maintain a great deal about the concept of humen rights it self.fundamental criticism by questioning the return of international law to its maker. The qur’an has the principle that men and women are the same as servants, because men and women are created from the same subtance (kholifatullah fiilardh),and the same obligations ( liya’budun) however,in the matter of reconciliation,the ulama’ agree that reconciliation is an absolute right of the husband. In the gender perspective if you see some possible understanding that women can submit referals as their right to their husband by conducting a new analysis of  the issue of referral rights’ which so far has been suggested to be dominated by men ( husband) by redeeming the rights of husband who was given to him. And with the khulu’ also the wife also has the right to the right of reconciliation to the husband who has dropped divorce on him.
Humans As Homo Intelectus In The Point Of View Of Al Qur’an
Authors: Arifa Laily Nur
Published: January 2022

Meneliti manusia sama dengan meneliti kemustahilan. Hingga hari ini, banyak hal tentang manusia yang telah diketahui dan dipahami, namun sebagian lainnya masih merupakan misteri. Al-Qur'an menyebut manusia sebagai khalifah di muka bumi. Sebagai khalifah, Allah telah membekali manusia dengan pendengaran, penglihatan, hati nurani, dan kemampuan menaklukkan alam di bawah kekuasaannya. Al-Qur’an juga menyebutkan bahwa manusia memiliki peran sebagai individu, sosial, dan makhluk belajar yang membawa fitrahnya sejak lahir. Terpilihnya manusia sebagai khalifah tentu bukanlah tanpa alasan. Manusia memiliki berbagai kelebihan dibandingkan dengan makhluk lain yang diciptakan Allah di muka bumi. Manusia, dengan akal yang dimilikinya memiliki kemampuan untuk menjadikan bumi sebagai tempat yang nyaman ditinggali semua makhluk. Kemampuan inilah yang menyebabkan manusia, mau tak mau, harus menggunakan akalnya. Manusia yang tidak mampu berpikir, tak akan mampu menjadi khalifah. Inilah yang menyebebabkan pendidikan sebagai a necessary of life. Pendidikan mengantarkan manusia menjadi manusia seutuhnya
Upaya Meningkatkan Hasil Belajar Matematika Siswa Pada Materi Himpunan Melalui Model Pembelajaran Kooperatif Tipe Numbered Head Together Di Kelas Vii-F Smp Negeri 4 Gresik Tahun 2019-2020.
Authors: Choiriyah Churun
Published: January 2022

Upaya meningkatkan hasil belajar matematika siswa pada materi himpunan melalui pembelajaran koopratif tipe numbered head together di kelas Vii-F SMP Negeri 4 Gresik ini dapat diketahui dengan beberapa tahap siklus analisis dan teori yang relevan digunakan. Dalam meningkatkan hasil belajar ada dua siklus dan memiliki empat tahap. Pertama perencanaan, pelaksanaan, pengamatan, refleksi. Sehingga dapat menjawab tiga permasalahan pertama Bagaimana hasil belajar siswa sebelum diterapkan model pembelajaran kooperatif tipe (NHT) di VII-F SMP Negeri 4 Gresik, kedua Bagaimana penerapan pembelajaran kooperatif tipe (NHT) pada pelajaran Matematika dengan Materi Himpunan di VII-F SMP Negeri 4 Gresik, ketiga hasil belajar siswa setelah diterapkan Model Pembelajaran Kooperatif tipe (NHT) pada pelajaran Matematika dengan Materi Himpunan di Kelas VII-F SMP NegeriI 4 Gresik. Berdasrkan hasil analisis data peneliti menemukan hasil Dari data tersebut hasil belajar matematika siswa kelas VII-F SMP NEGERI 4 GRESIK tergolong rendah dan belum dapat dikatakan tuntas karena persentase ketuntasan klasikalnya belum mencapai 85%. Pada tindakan I diperoleh nilai rata-rata yaitu 70 dengan persentase ketuntasan klasikalnya yaitu 56 % atau sebanyak 18 orang siswa sedangkan 14 orang siswa atau 44% siswa tidak tuntas belajar. Pada tindakan II meningkat dengan nilai rata-rata 85 dengan persentase ketuntasan klasikalnya yaitu 87,5 % atau sebanyak 28 orang siswa yang sudah tuntas belajar bahkan pada tindakan II inilah persentase ketuntasan secara klasikal dapat mencapai ≥ 85 %. Oleh karena itu dengan menggunakan model pembelajaran kooperatif dapat meningkatkan hasil belajar matematika siswa kelas VII-F SMP Negeri 4 Gresik.
PENGARUH PENGGUNAAN MODEL PEMBELAJARAN KOOPERATIF TIPE JIGSAW TERHADAP HASIL BELAJAR MAHASISWA
Authors: Lubis Riri Syafitri
Published: January 2022

Abstrak:

            Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan model pembelajaran kooperatif tipe jigsaw terhadap hasil belajar aljabar linier mahasiswa. Adapun populasi dalam penelitian ini adalah seluruh mahasiswa semester III Program studi Fisika, Fakultas Sains dan Teknologi,  Universitas Islam Negeri Sumatera Utara. Sedangkan sampel dalam penelitian  ini adalah mahasiswa Fis 1 semester III yang berjumlah 38 mahasiswa. Penelitian ini menggunakan metode experimental design dengan jenis pretest dan posttest one group design. Penelitian ini mengambil desain eksperimen yang hanya melibatkan satu kelompok tanpa kelompok pembanding. Dari hasil penelitian diperoleh bahwa   >  yaitu 55,53 > 4,11 maka persamaan garis regresi tersebut menunjukkan signifikan dan dapat disimpulkan bahwa terdapat terdapat pengaruh model pembelajaran koperatif tipe jigsaw  terhadap hasil belajar aljabar linier mahasiswa semester III Program studi Fisika, Fakultas Sains dan Teknologi,  Universitas Islam Negeri Sumatera Utara.

 

Kata Kunci:

Model Pembelajaran Kooperatif Tipe Jigsaw, Hasil Belajar, Aljabar Linier

 

Abstract:

The purpose of this study was to determine the effect of using the type of jigsaw cooperative learning model on student linear algebra learning outcomes. The population in this study were all third semester students of Physics Study Program, Faculty of Science and Technology, State Islamic University of North Sumatra. While the sample in this study were 38 students of the third semester of Fiscal 1. This study used experimental design with the type of pretest and posttest one group design. This study took an experimental design involving only one group without a comparison group. From the results of the study, it was found Fcount > Ftable that 55.53> 4.11, the regression line equation shows significant and it can be concluded that there is an effect of the jigsaw cooperative learning model on the learning outcomes of the third semester students of the Physics Study Program, Faculty of Science and Technology, State Islamic University of North Sumatera.

 

Keywords:
Jigsaw Type Cooperative Learning Model, Learning Outcomes, Linear Algebra
TRAINING NEEDS ASSESSMENT FOR SMALL BUSINESSES: THE CASE OF THE HOSPITALITY INDUSTRY IN JORDAN
Authors:   Al-Balqa Applied University, Deanship of Scientific Research, Al-salt, 19117, Jordan, HYASAT Ali S. , AL-WESHAH Ghazi A. ,   Al-Balqa Applied University, Department of Marketing, the Faculty of Business, Al-salt, Jordan, KAKEESH Dana F. ,   The University of Jordan, Department of Marketing, School of Business, Amman, Jordan
Published: January 2022

This study is designed to assess and identify the status of hospitality training needs, methods and potential challenges within the hospitality industry, in order to recognize gaps and develop training programmes that address and enhance the competitiveness of small businesses within it. A qualitative approach was employed, whereby face-to-face and semi-structured interviews were conducted with 60 owners and managers of small businesses in the hospitality industry. Using thematic analysis, the study concludes that communication skills, especially foreign languages, are the most the important training need at both managerial and operational levels. Moreover, the study found that on-the-job training is one of the most important training methods. Furthermore, a lack of training budgets is found to be the most critical challenge to training. The study provides empirical evidence and practical implications for decision-makers in the hospitality industry.