bluuebunny/crossref_metadata_2025 huggingface dataset:
MANIFESTAÇÕES PATOLÓGICAS NAS ESTRUTURAS DE MADEIRA DO CENTRO DE EVENTOS IBC (INSTITUTO BRASILEIRO DO CAFÉ): ESTUDO DE CASO EM EDIFICAÇÃO PÚBLICA
Authors: Martins Juliana Furtado Arrobas , Fioriti Cesar Fabiano
Published: April 2022

No Brasil, devido à grande quantidade de estruturas históricas de madeira, tanto as tombadas pelo patrimônio quanto as grandes estruturas de madeira construídas no país entre as décadas 1920 e 1960, existem muitas estruturas com mais de 55 anos de existência ainda em uso. Em muitas delas, o uso originalmente planejado foi sendo alterado ao longo da vida dessas estruturas. A idade dessas estruturas, combinada às alterações de uso e manutenção precária, potencializaram a ocorrência de problemas patológicos. Diante disso, este trabalho trata-se de um estudo de caso realizado no edifício do Centro de Eventos IBC (Instituto Brasileiro do Café), sendo este um dos mais antigos e conhecidos do município de Presidente Prudente, interior do estado de São Paulo. Por meio de inspeção visual foram identificadas as manifestações patológicas presentes e as mais frequentes no sistema estrutural em madeira. Para isso foi realizada a análise dos aspectos gerais das anomalias, com o objetivo de identificar o tipo de dano encontrado. As manifestações patológicas detectadas que ocorreram com maior incidência foram: apodrecimento das peças, atuação de agentes bióticos, irregularidades geométricas, uniões deficientes em cavilhas, reparos deficientes e fissuras. Por fim são apresentadas as causas prováveis e as possíveis soluções de reparo dos problemas patológicos, percebendo-se que a maioria dos danos poderiam ter sido minimizados caso houvesse um programa de manutenção periódica preventiva no edifício.
ALGORITMO BASEADO NO MÉTODO DE POTRA-PTÁK PARA A SOLUÇÃO NÃO LINEAR DE TRELIÇAS ESPACIAIS
Authors: Souza Luiz Antonio Farani de , Castelani Emerson Vitor , Shirabayashi Wesley Vagner Inês
Published: April 2022

A tendência atual de utilizar estruturas mais esbeltas e com maior resistência torna a análise de estabilidade um assunto de fundamental importância. Pontos críticos de força e de deslocamento podem surgir na trajetória de equilíbrio da estrutura, especialmente em problemas com não linearidade geométrica severa. As treliças podem experimentar condições de carregamento que causam grandes deslocamentos, alterando significativamente sua geometria. Um algoritmo fundamentado no método iterativo de Potra-Pták com ordem de convergência cúbica, associado à técnica de continuação de Comprimento de Arco Linear, é apresentado neste artigo para a análise estática de treliças espaciais considerando a não linearidade geométrica. A formulação de Elementos Finitos Posicional é utilizada para a discretização da estrutura, que é uma abordagem alternativa que considera as coordenadas nodais como variáveis do sistema de equações não lineares ao invés dos deslocamentos. Supõe-se que o material que constitui as barras da treliça tenha comportamento constitutivo elástico linear. Simulações computacionais de problemas de treliças espaciais com o programa desenvolvido em ambiente Matlab são efetuadas, evidenciando o melhor desempenho numérico do algoritmo proposto com o método de Potra-Pták, em comparação com as análises feitas com o esquema iterativo de Newton-Raphson Padrão.
Chemical Composition and Morphological Characterization of Enset (E. ventricosum) Leaf Residues for Paper Pulping Production: Kraft Pulping
Authors: Melesse Emiru Yidnekachew , Asrat Zelelam Belay
Published: April 2022

Currently, paper pulping production from woody materials has many disadvantages due to its high energy, chemical, water consumption, methane emissions, and deforestation. However, the use of non-woody materials solves these problems. This study focused on the use of non-virgin raw material (Enset leaf fiber) in pulp and paper making. Enset leaf residues are the primary solid residues after the steam plant is used for “Kocho” processing. This leaf fiber has a lignocellulose component, converting this residue into Pulp and paper is crucial in terms of economic and waste management via the Kraft process. It has a higher fiber quality, lower energy consumption, and high recoverability of the chemical raw materials used in the process. The chemical composition of the Enset leaf fiber was analyzed using the Technical Association of Pulp and Paper. It has an excellent fiber length (2.12±1.46mm), fiber diameter (26.55±15.6µm) andacceptable rigidity coefficient (1.05±0.07), and flexibility coefficient (125.23±0.04). The maximum pulp yield was obtained at a temperature of 120°C, NaOH concentration of 8%, and 40 min cooking time off, which was 69.92% w/w. The functional groups of the Enset leaf fiber and morphological characteristics of the fiber were investigated.
Sequestration of Arsenate from Surface Water Using Chemically Activated Carbon of Black Velvet Tamarind Fruit Shell
Authors: Abdurrazzaq Ahmad , Musa Haruna , Sani Umar
Published: April 2022

Chemically activated carbon of BVT fruit shell was investigated for its potential adsorption functionalities to remove As (V) from surface water in a batch system. The AC showed maximum removal efficiency of approximately 75% depicting Qmax of 0.00018mg/g at an initial sorbate concentration of 0.016mg/L, a contact time of 26min, and a carbon dosage of 1g. The sorption isotherm studies revealed a better fit for Langmuir isotherm. Hence, a homogeneous monolayer surface adsorption process has taken place.
Structure, Property, Processing and Applications of Fire Retardant Materials: A Brief Review
Authors: Bokka Sravan , Achary Srungarpu Nagabhusan , Chowdhury Anirban
Published: April 2022

Fire though an important component of life, the devastating effect of fire accidents is a threat to life and materials. Thus, the prevention and control of fire are becoming a serious concern. Hence, it is no wonder that fire retardant materials (FRMs) are slowly becoming ubiquitous in our daily lives. To control the fire in an unexpected fire accident or to prevent fire accidents FRMs are becoming essential requirements. To save material or life, fire retardant materials have been used for long knowingly or unknowingly. However, the understandings of chemistry and thermochemistry of materials helped for the development of efficient FRMs. Diversified materials, processing methods, and application modes have been developed, and all of them become specific depending on the nature and origin of the fire. In this regard, the inorganic FRMs form a distinct category due to their low cost, easier processing and wider choice of application mode without leaving any additional environmental burden either to land or the atmosphere. In this paper, different fire retardant materials and their properties with the abilities to tackle the fire at different temperatures are reviewed. The primary characteristics of fire and the thermal behaviours of FRMs as well as changes in behaviour/properties when FRMs are treated with certain synergistic systems are discussed. The importance of composition, morphology and structure of FRMs on the efficiency and applicability are discussed. Recent developments on the synthesis and characterisation of different types of FRMs and their composites have been elaborated. The effective applications and the commercial products based on their properties are also briefly covered. Overall, the review provides an overview of existing information on fire retardant materials in terms of their synthesis, processing, usability and limitations, with a prime attention on the process-structure-property relations of these materials.
Prevalence and Pain Distribution of Anterior Knee Pain in Collegiate Basketball Players
Authors: Hannington Madeline , Tait Tyler , Docking Sean , Cook Jill , Owoeye Oluwatoyosi , Bonello Christian , Emery Carolyn , Pasanen Kati , Edwards Suzi , Rio Ebonie
Published: April 2022

Context

Causes of anterior knee pain (AKP) in jumping athletes include patellofemoral pain and patellar tendinopathy. The differential diagnosis of AKP is challenging, with variations in clinical presentations. No previous research has used pain location to describe AKP in basketball players.

Objective

To (1) describe the prevalence and pain distribution of AKP in collegiate basketball players and (2) report the prevalence of focal inferior pole pain using 2 outcome measures.

Design

Cross-sectional study.

Setting

University and collegiate basketball facilities in Alberta, Canada.

Patients or Other Participants

A total of 242 collegiate basketball athletes (138 women, 104 men).

Main Outcome Measure(s)

The single-legged decline squat test (SLDS) was used to capture pain location via pain mapping (dichotomized as focal or diffuse) and pain severity (numeric rating scale). The Oslo Sports Trauma Research Centre Knee questionnaire (OSTRC-Knee) and adapted version for patellar tendinopathy (OSTRC-Patellar Tendinopathy Questionnaire [OSTRC-P]) were used to report the prevalence of AKP and patellar tendinopathy, respectively. Focal inferior pole pain during the SLDS was used to classify patellar tendinopathy.

Results

Of the 242 players, 146 (60%) reported pain with the SLDS (unilateral = 64 [26%]; bilateral = 82 [34%]). A total of 101 (43%) described knee pain using the OSTRC-Knee. Pain mapping captured the variability in pain locations. Diffuse pain was more prevalent (left, 70%; right, 72%) than focal pain (left, 30%; right, 28%). Low prevalence of patellar tendinopathy was noted using the OSTRC-P (n = 21, 8.7%) and inferior pole pain during the SLDS (n = 25, 10.3%).

Conclusions

Diffuse AKP was common in Canadian basketball players; however, pain mapped to the inferior pole of the patella was not common. Few players reported tendinopathy using the OSTRC-P, suggesting that patellar tendinopathy was not a primary knee pain presentation in this jumping cohort. Pain location, rather than the presence or severity of pain alone, may better describe the clinical presentation of AKP in jumping athletes.
A Giant Sand Injection Complex: The Upper Jurassic Hareelv Formation of East Greenland
Authors:   Geological Institute, University of Copenhagen, Surlyk Finn , Noe-Nygaard Nanna ,   Geological Institute, University of Copenhagen
Published: April 2022

A major intrusive sandstone complex of Late Jurassic age is spectacularlyexposed in Jameson land, East Greenland. It is probably thelargest in the World, and covers an area of 55x70 km with a thicknessof 200–400 m, and forms the Upper Oxfordian–Volgian Hareelv Formation.The complex consists of black basinal mudstones and highlyirregular sandstone bodies, dykes and sills. The sand was derivedfrom collapse of the front of sandy shelf-margin wedges, which triggeredhyperconcentrated to concentrated density flows, and depositedmassive sands further down the slope, at the base-of-slope and in thebasin. The sand of some flows was loaded into the slope muds whileelsewhere it flowed in steep-sided gullies formed by retrogressiveslumping of the slope muds. All sand bodies were liquefied subsequentto burial and the sand was intruded into the surrounding blackcompacted muds and mudstones. Intrusion took place repeatedly overa long time interval, in environments ranging from very shallow torelatively deep burial, and the primary sediment structures of thesands were generally lost during these processes. It is rarely possibleto determine the degree of post-burial remobilization but it rangesfrom rather small-scale modifications to wholesale liquefaction andout-of-place intrusion of the sand over many tens of metres. Sandstonedykes and sills occur ubiquitously and were emplaced by allcombinations of stoping and dilation. The intrusive sand bodies rangein dimensions from centimetres to many hundreds of metres. Depositiontook place during the most important Mesozoic rift event in EastGreenland and the pervasive remobilization and liquefaction of allsand bodies in the Hareelv Formation is interpreted as having beencaused mainly by cyclic earthquake shocks. Additional important factorswere slope shear stress, build up of pore pressure due to loading,slumping, upwards movement of pore waters expelled from the compacting muds, and also possibly of biogenic and thermogenic gas. The Hareelv Formation is an excellent field analogue for deeply buriedhydrocarbon reservoirs, which have been modified by remobilizationand injection of the sands.
Agriopleura Morphotypes of the Lower Aptian Shu’aiba Formation of Saudi Arabia
Authors:   Saudi Aramco, Hughes Geraint W.
Published: April 2022

The Shu’aiba Formation of the Arabian Platform consists of Aptian carbonates in which rudists are important biocomponents. It is an important hydrocarbon reservoir. Semi quantitative micropalaeontologyand macropalaeontological observations from cores have enabled three-dimensional interpretation of biofacies and lithofacies that have guided optimal reservoir exploitation.In addition to the presence of Offneria murgensis MASSE, O. cf. nicolinae (MAINELLI), Glossomyophorus costatus MASSE et al., Oedomyophorus shaybahensis SKELTON, and Horiopleura cf. distefanoiBOEHM the Shu’aiba Formation contains Agriopleura cf. blumenbachi(STUDER) and A. cf. marticensis (d’ORBIGNY). Although species of Agriopleura are locally present over short sections below the Glossomyophorus costatus accumulations of the middle part of the formation, they are very well represented in its upper part, where they are typically associated with the moderately deep marine benthonic foraminifera Praechrysalidina infracretacea, Vercorsella arenata, Debarina hahounerensis and Palorbitolina lenticularis.Agriopleura cf. blumenbachi and A. cf. marticensis display contrastingmorphologies. Agriopleura cf. marticensis is cone-shaped, with a fixed valve expansion angle of 30–35º, and with average right valve dimensions of 3.5 cm length and 2.5 cm maximum diameter. A recently observed “clinger” form is, however, 70 cm long. A. cf. blumenbachiis elongate, almost tube-like, with a very low rate of fixed valve diameter increase, of less than 10º with average right valve dimensions of 6.5 cm length and 2.2 cm maximum diameter.The two forms are present in distinct biofacies. Both Agriopleura facies are considered to compose a single depositional cycle, and it is possible that the elongate shape of Agriopleura cf. blumenbachi is better adapted to the slightly higher rate of sedimentation associated with the relatively rapid sea level rise at the base of each new depositionalcycle. The cone-shape of A. cf. marticensis is possibly adapted to lower rates of sedimentation during the relatively slower rate of sea level rise, and ultimate fall of the upper part of each depositional cycle.
Biostratigraphy of Turonian to (?)Coniacian Platform Carbonates: A Case Study from the Island of Cres (Northern Adriatic, Croatia)
Authors:   Croatian Geological Survey, Zagreb, Croatia, Korbar Tvrtko , Husinec Antun ,   Croatian Geological Survey, Zagreb, Croatia
Published: April 2022

The shallow marine carbonate deposits on the island of Cres, overlying deeper-water Cenomanian–Turonian limestones, are characterized by an assemblage of rudists, benthic foraminifera, and associated microfossils. The paucispecific character of the fossil association suggests deposition in shallow areas of a carbonate platform, with low current-energies and restricted circulation. Similar assemblages indicating similar palaeoenvironments, are common in the Upper Cretaceous deposits of the Adriatic Carbonate Platform and adjacent areas.The assemblage of rudists (hippuritids) and microfossils indicate the Turonian to (?)Coniacian age of the investigated carbonate succession. The biostratigraphic importance of the so-called “primitive” hippuritids within the micropalaeontologically poorly defined biostratigraphy of deposits of this age, is accentuated.
Impact of Geomorphological Variables in Weighing the Lithological Influence on Geochemical Composition of Stream and Overbank Sediments: A Regression Model for the Žumberak Area (NW Croatia)
Authors:   Croatian Geological Survey, Zagreb, Croatia, Peh Zoran , Miko Slobodan ,   Croatian Geological Survey, Zagreb, Croatia
Published: April 2022

The two multiple regression models were compared on the assumptionthat the geochemical composition of the alluvial material is basically originally derived from the bedrock lithology of a drainage basin of the Žumberak Area (NW Croatia). The latter was integrated with both stream sediment and overbank sediment geochemical data via the two essentially different approaches as regards the catchment basin geomorphological data: (1) as the relative area of influence representing a portion of the catchment basin occupied by a certain rock type; (2) as the relative “line” of influence representing a narrow tract of a certain rock type traversed by the majority of perennial streams which form the active stream network. The model comparisonwas accomplished on the basis of the goodness-of-fit test for both experimental designs and for the same set of data. The most important result of these experiments highlights the linear approach as the more appropriate model for ascertaining the lithological influence on the analyzed sample media. This can be explained by the stronger erosiveand transportational power of the water which flows in the well defined channel network in contrast to the unconcentrated surface runoff in the interfluvial area, coupled with the buffering effects of rich slope and riparian vegetation, which is characteristic of the Žumberak heartland.
A follow-up on quantitative and qualitative olfactory dysfunction and other symptoms in patients recovering from COVID-19 smell loss
Authors: Ohla K. , Veldhuizen M.G. , Green T. , Hannum M.E. , Bakke A.J. , Moein S.T. , Tognetti A. , Postma E.M. , Pellegrino R. , Hwang D.L.D. , Albayay J. , Koyama S. , Nolden A.A. , Thomas-Danguin T. , Mucignat-Caretta C. , Menger N.S. , Croijmans I. , Öztürk L. , Yanık H. , Pierron D. , Pereda-Loth V. , Nunez-Parra A. , Martinez Pineda A.M. , Gillespie D. , Farruggia M.C. , Cecchetto C. , Fornazieri M.A. , Philpott C. , Voznessenskaya V. , Cooper K.W. , Rohlfs Dominguez P. , Calcinoni O. , de Groot J. , Boesveldt S. , Bhutani S. , Weir E.M. , Exten C. , Joseph P.V. , Hayes J.E. , Niv M.Y.
Published: April 2022

Background: Sudden smell loss is a specific early symptom of COVID-19, which, prior to the emergence of Omicron, had estimated prevalence of ~40% to 75%. Chemosensory impairments affect physical and mental health, and dietary behavior. Thus, it is critical to understand the rate and time course of smell recovery. The aim of this cohort study was to characterize smell function and recovery up to 11 months post COVID-19 infection. Methods: This longitudinal survey of individuals suffering COVID-19-related smell loss assessed disease symptoms and gustatory and olfactory function. Participants (n=12,313) who completed an initial survey (S1) about respiratory symptoms, chemosensory function and COVID-19 diagnosis between April and September 2020, were invited to complete a follow-up survey (S2). Between September 2020 and February 2021, 27.5% participants responded (n=3,386), with 1,468 being diagnosed with COVID-19 and suffering co-occurring smell and taste loss at the beginning of their illness. Results: At follow-up (median time since COVID-19 onset ~200 days), ~60% of women and ~48% of men reported less than 80% of their pre-illness smell ability. Taste typically recovered faster than smell, and taste loss rarely persisted if smell recovered. Prevalence of parosmia and phantosmia was ~10% of participants in S1 and increased substantially in S2: ~47% for parosmia and ~25% for phantosmia. Persistent smell impairment was associated with more symptoms overall, suggesting it may be a key marker of long-COVID illness. The ability to smell during COVID-19 was rated slightly lower by those who did not eventually recover their pre-illness ability to smell at S2. Conclusions: While smell ability improves for many individuals who lost it during acute COVID-19, the prevalence of parosmia and phantosmia increases substantially over time. Olfactory dysfunction is associated with broader persistent symptoms of COVID-19, and may last for many months following acute COVID-19. Taste loss in the absence of smell loss is rare. Persistent qualitative smell symptoms are emerging as common long-term sequelae; more research into treatment options is strongly warranted given that even conservative estimates suggest millions of individuals may experience parosmia following COVID-19. Healthcare providers worldwide need to be prepared to treat post COVID-19 secondary effects on physical and mental health.
Civil society action: Another formation of civil society in Vietnam (The case studies of environmental protection in Dong Nai River Basin, Vietnam)
Authors: Anh Tran Tu Van
Published: April 2022

Most research on civil society in Vietnam tends to equate civil society with registered civil society organizations. This seems to provide an inadequate understanding of the civil society in Vietnam. To fill this gap, this research adopts the action-based approach that underlines civil society action-another formation of civil society in Vietnam. This approach is examined via the contrast cases between a foreign-invested company and a state-owned enterprise that were a better understanding about the formation and contribution of civil society action on Vietnam’s environmental issue. My findings confirmed that civil society in Vietnam is not only in the form of organizations but also the action via utilizing the chain of activities based on the voluntariness in public space toward common interest and it exists in the Vietnamese color. At the end of this article, I will discuss the implications of this study for the effective contributions of civil society in Vietnam.
Motivation in learning Japanese language and the effect of five components of the 5Ts framework
Authors: Nguyen Ha Thi Diem
Published: April 2022

Motivation is vital for learners to achieve desired learning outcomes. Meanwhile, the 5Ts framework is a useful tool for teachers to improve students’ motivation. This study focused on questionnaire responses of Japanese language students’ stating their perceptions towards intrinsic motivation and 5Ts components as well as scrutinized the relationship between these two constructs. Results showed that both perceptions were favourable and held a positive relationship. Furthermore, students’ intrinsic motivation was a powerful predictor for 5Ts components. Findings indicated that enhancing the quality of teachers’ 5Ts implementation might lead to an improvement in students’ motivation. At the same time, an increase in students’ intrinsic motivation caused a greater extent of their expectation on the quality of teachers’ 5Ts practice.
Exploring the impact of support service on student satisfaction: The case of Vietnam higher education
Authors: Luong Nguyen Tan , Thong Nguyen Ngoc
Published: April 2022

This study was conducted to assess the factors that affect students’ satisfaction with support services provided by universities in Vietnam. Research results show that five factors related to library services (TV), food service (CT), financial support (TC), support from departments (PB), and extracurricular activities (NK) have affected student satisfaction (HL). Research methods used in this study are Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), and Structural Equations Modeling (SEM). Participants of questionnaires include 1,687 students studying at Vietnamese universities. SEM results show that the level of positive impact varies between components to student satisfaction. In addition, multi-group analysis results also affirmed the difference in characteristics of schools (public, private) and geographic areas (northern, central, and southern areas) between the research models’ relationships.
Emergency remote teaching: The case at Becamex Business School
Authors: Duy Bui Duc , Duong Ninh Tran Thuy , Quang Le Vinh , Duc Ngo Minh , Son Nguyen Truong
Published: April 2022

The coronavirus (Covid-19) in 2019 has significantly impacted society and threatened education globally. This crisis forced governments around the world to temporarily close educational institutions to reduce the spread of Covid-19. The educational institution is forced to implement Emergency Remote Teaching (ERT) in virtual learning to continue operations. During the pandemic, this topic received much attention from the research community. As a consequence, this study reviews ERT literature and conducts qualitative research (Becamex Business School case) to investigate the challenges of implementing ERT in developing countries to provide some insights for better preparation. The results show that most of the problems identified in previous studies correspond to the BBS case, in which themes such as infrastructure, materials, and training appear to be global issues. Meanwhile, several distinct ideas are generated from the BBS case, such as the age of lecturers can affect their acceptance and excitement towards ERT, or parents and friends can influence learner behaviors during the ERT period.
RESOLUCIÓN N°. 587-2020-F Y SU INCIDENCIA EN EL PRESUPUESTO DE LA COOPERATIVA DE AHORRO Y CRÉDITO “ABDÓN CALDERÓN” LTDA., 2020
Authors: Moreira-Gómez Juan Andrés , Mogro-Rada Félix Alberto
Published: April 2022

La Resolución N°. 587-2020-F tuvo su alcance a nivel nacional destinada a las entidades del sector de la Economía Popular y Solidaria. Se refiere al diferimiento y reestructuración de los créditos que, por causa de la pandemia, los socios no lograron pagar sus obligaciones financieras normalmente. Este problema ocasionó un decrecimiento de los ingresos de la cooperativa y por ende del cumplimiento del presupuesto, optando por acogerse a la resolución. El objetivo del desarrollo de la presente investigación es analizar de qué manera afectó la Resolución N° 587-2020-F en el presupuesto de la Cooperativa de Ahorro y Crédito “Abdón Calderón” Ltda.2020. Para alcanzar el objetivo planteado, se enmarca el estudio en una metodología de enfoque cuantitativo aplicando los métodos analítico-sintético, documental. Existiendo una población de 52 Créditos diferidos y refinanciados, resaltando entre los resultados obtenidos que, en el período de ejecución de la resolución, se pudo evidenciar que la Cooperativa Abdón Calderón Ltda., tuvo una reducción en las cuentas de ingresos debido a que no obtuvo ingresos por intereses de cartera u otros asociados a los ingresos para la entidad. Del mismo modo se concluye con la afirmación que la Resolución N° 587-2020-F, no ocasionó un impacto negativo que pusiera en riesgo la rentabilidad o sostenibilidad de la misma. Por lo contrario, en el ejercicio del año 2020, resultó un incremento en la recuperación de la morosidad activa en comparación con el año 2019. Así como también, aumentaron los depósitos recibidos en comparación con los años anteriores.

Palabras claves: refinanciamiento, reestructuración, presupuesto.
Systematic Review of Study Designs and Methods of Research on Disability in South African Higher Education Institutions Amidst COVID-19 (2020-2021)
Authors: Makwembere Sandra
Published: April 2022

The purpose of the study was to assess the study designs and methodological approaches of published works on disability in South African higher education institutions from 2020 to 2021. A systematic review was performed as a method to achieve this. The reporting of this systematic reviews was guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses standards. Electronic searches of Bielefeld Academic Search Engine, EbscoHost, ScienceDirect, Scopus and Wiley Online Library were conducted of electronic works published in English from January 2020 to December 2021. Publications of empirical research on disability in any South African higher education institution where data were collected during COVID-19 were included. Non-peer-reviewed publications, which explicitly indicated that data were collected before March 2020, did not have a South African higher education institution as a study site and were a desktop-only research or conceptual papers were excluded. Three studies were included ultimately. Ten elements were chosen for analysis based on the research purpose. The findings show that disability research has predominantly used qualitative designs and methods; an exploration that involves people with disabilities throughout the research process is limited and the inclusion of researcher positionality is limited. Arguably, this study is the first systematic review of empirical studies on disability in South African higher education since the start of the COVID-19 pandemic. The results support the need for a trajectory towards the use of more diverse research designs and methods.
Transformations in Higher Educational Institutions: A Review of the Post-COVID-19 Era
Authors: Odularu Oluwayemi IbukunOluwa , Puzi Mandisa Eunice , Ngqila Kholekile , Olatoye Tolulope Ayodeji
Published: April 2022

The COVID-19 epidemic was initially experienced in China, in a city called Wuhan (December 2019), and Europe, the USA and Australia were not left behind. South Africa was the worst-hit country, with a total of 88,914 deaths recorded on October 24, 2021, and like many other countries of the world, it suffered the loss of human lives and livelihoods. In 2021, almost 65,000 South Africans had been lost to the pandemic. This pandemic has destabilised systems and processes that define human existence, thereby wreaking havoc on many facets of human life, with education being predominantly affected. COVID-19 has fostered global readjustments in education with the advent of online teaching or, as referred to in some studies, emergency online education. This paper examined many of the challenges faced by students and lecturers, including adaptation problems among lecturers and students, internet connectivity issues, an unconducive teaching and learning workspace, and associated health risks. This study also reviewed positive developments that took place since the onset of the COVID-19 pandemic, such as the WiSeUp Moodle Training, academic discourse, and capacity development. In addition, it is suggested that researchers carry out further studies on the effects of COVID-19 with reference to teaching and learning. The paper concludes by reviewing the positive and negative teaching and learning outcomes of the transformations that Higher Educational Institutions underwent after the onset of the COVID-19 pandemic.
Virtual Management of Students' Unrest During the COVID-19 New Normal: The Need for an Innovative Approach
Authors: Omodan Bunmi Isaiah
Published: April 2022

COVID-19 has changed the face of universities in terms of their operation, which include but are not limited to teaching, learning, researching, and management system. This does not exclude the management of students’ unrest. Despite the COVID-19 inversion, students’ unrest did not stop; instead, it took a more sophisticated dimension. Such dimension includes virtual protest and virtual meetings with the use of social media, among others. This significantly affects the culture of teaching and learning and also attempt to blackmail the image of the universities. Therefore, this conceptual paper aimed to respond by proffering an up-to-date management style suitable to managing student unrest during COVID-19. The argument is located within Diffusion of Innovation Theory to understand the university stakeholders' behaviour and adaptability to new ways of doing things during the COVID-19 inflicted change. The study argued the need for a change in the management styles towards managing students’ unrest. The challenges that hinder the university towards effective management of virtual protest/unrest and the possible solutions to the new methods of students’ protest/unrest was also presented. The study recommends, among others, the incorporation of strategic leadership and communication in the universities' management styles to meet the unavoidable dynamics of human behaviours in the system.
South African Female Academics’ Work from Home Experiences during the COVID-19 Pandemic: Challenges and Opportunities
Authors: Makura Alfred Henry
Published: April 2022

The COVID-19 pandemic has triggered pedagogical ramifications in many higher education institutions. The Work from Home (WFH) phenomenon as an offshoot of this development has not been adequately investigated in so far as female academics experienced it. This paper reports on ten female academics’ WFH instructional experiences with blended learning during the COVID-19 pandemic era. The WFH concept has necessitated the ‘virtualisation of pedagogy’ through blended teaching and learning of academics. The sample was purposively extracted from some higher education institutions in Gauteng, Free State and Eastern Cape Provinces of South Africa. The sample for this study was purposively selected irrespective of geographical location or ‘status’ of the institution. Each female academic responded to an open-ended structured questionnaire whose questions broadly focused on: their understanding of the Working From Home (WFH) phenomenon; the influence of home environment on their academic activities and the place of blended learning in a South African Higher education context. The data were collated and analysed for its content with supporting excerpts to discern and support themes. The female academics viewed WFH as relocating offices to their homes with the attendant plethora of academic challenges this entailed. The WFH constrained their abilities to complete academic activities particularly instructional related ones. Be that as it may, the pandemic has presented female academics with opportunities for professional growth through the blended mode of learning and newer perspectives on the apparently shifting gender roles. Such opportunities promote female academics’ quest for the reconfiguration of education pedagogy and gender autonomy in higher education post COVID-19.
Reinforcing the Role of ICT in Enhancing Teaching and Learning Post-COVID-19 in Tertiary Institutions in South Africa
Authors: Shava Elvin
Published: April 2022

The use of Information Communication Technology (ICT) in higher education is becoming more and more prevalent with the over-proliferation of technological development we find ourselves in. The educational landscape in South African tertiary institutions has been affected by the COVID-19 pandemic, resulting in increased use of ICT. In turn, this has transformed these institutions' teaching, learning, and research. Central to this transformation has been challenges facing both teachers and administrators, including the need for a great demonstration of the value of ICT through improved output on teaching, learning and research. This paper examines the use of ICT in enhancing teaching and learning in South African tertiary institutions during and post COVID-19. Using an extensive secondary review approach, the report observes that ICT has been widely embraced in tertiary institutions during the COVID-19 pandemic lockdown. However, a minority of students and lecturers still lack the technological expertise to utilise modern technologies. In addition, limited funding in some rural universities hinders the purchasing of modern ICT equipment to support teaching and learning in tertiary institutions. The paper recommends increasing the value of ICT usage in the teaching and learning process post-COVID-19. Regular workshops and in-service training of both teaching staff, students and administrators in pedagogical issues and administration should be increased.
Innovation and Technology: A Panacea to Teaching and Learning Challenges during the Covid-19 Lockdown in South Africa
Authors: Adu Kemi O. , Badaru Kazeem Ajasa , Duku Ntombozuko , Adu Emmanuel O.
Published: April 2022

Innovation and technology brought by the 4th Industrial Revolution (4IR) have become an urgent reality to all teachers because of the need for a virtual classroom. In South Africa, over 13 million students in almost 25,000 schools have been affected by the COVID-19 lockdown. Most school teachers were not trained for online teaching, which was the only safe method of teaching during the lockdown period. This study, therefore, investigated how innovation and technology were utilised to mitigate the virtual classroom problems during the COVID-19 lockdown. This study employed a qualitative research approach using interviews to collect data based on the phenomenological research design. The sample for this study consisted of 12 lecturers purposively drawn from one university in the Eastern Cape Province of South Africa. Thematic content analysis was performed on the data. The findings revealed that a majority of the participants have poor pedagogical skills especially those related to using technologies such as Blackboard, Microsoft Teams, and V-Drive on computers for online teaching engagements during the COVID-19 lockdown; strategies utilised by the participants for their teaching activities during the lockdown included Microsoft Teams, WhatsApp voice notes, email attachments for sending bulky teaching materials to students, and other Computer-instructional resources. Thus, this study recommends an urgent need for capacity development workshops to equip lecturers with computer and ICT skills, knowledge, and strategies for online teaching delivery and increased provision of adequate learning and teaching facilities in all public educational institutions, including those in the rural areas.
Hodnotenie vzdelávacieho prostredia s využitím hodnotiaceho nástroja DREEM – spoločný projekt FZO PU v Prešove a FZS UJEP Ústí nad Labem
Authors: Lizáková Ľubomíra , Lamková Ivana
Published: April 2022

Vzdelávacie prostredie, s ktorým sa študenti stretávajú, má vplyv na spokojnosť s priebehom štúdia, vnímanú pohodu, ašpirácie a akademické výsledky. Hodnotenie vnímania vzdelávacieho prostredia študentmi v nelekárskych študijných programoch pomocou vhodných nástrojov je preto dôležité a potrebné. Cieľ: Cieľom tejto štúdie bolo zistiť, ako študenti vnímali vzdelávaciu klímu pomocou Dundee Ready Education Environment Measure (DREEM) a porovnať zistenia získané na dvoch univerzitách na Slovensku (FZO PU Prešov) a v Českej republike (FZS UJEP Ústí nad Labem). Metóda: DREEM bol v 1., 2. a 3. ročníku štúdia v roku 2018 až 2019 distribuovaný celkovo 742 študentom. Výsledky: Celkové skóre dotazníka DREEM pre FZO PU Prešov bol 123,15±16,6 (z 200), čo je 62 % z maximálneho možného skóre a celkové skóre dotazníka DREEM pre FZS Ústi nad Labem bolo 126,57±20,6 (z 200), čo je 63 % z maximálneho možného skóre. Medzi Slovenskou republikou a Českou republikou neboli signifikantné rozdiely vo vnímaní vzdelávacieho prostredia študentmi. Vnímanie bolo podobné u študentov v každej krajine. Záver: Štúdia pomohla identifikovať určité problémy, ktoré si vyžadujú ďalšie skúmanie, ako napríklad systém podpory pre študentov, ktorí sú stresovaní, primeraná sociálna a akademická podpora pre študentov nelekárskych odborov, efektívne duševné zdravie a poradenský program.
Zpráva mezinárodního projektu ERASMUS+ „My Operating Room Nurse Coach“
Authors: Škvrňáková Jana , Wichsová Jana , Vojtěchová Magdalena
Published: April 2022

U tohoto formátu příspěvku není požadován
Synchronous Duodenal and Jejunal Gastrointestinal Stromal Tumors
Authors:   Department of Surgery, School of Medicine of the Federal University of Minas Gerais, Belo Horizonte, Brazil, Petroianu Andy , Sabino Kelly Renata , Couto Michelle Arlete Gonçalves
Published: April 2022

BACKGROUND Gastrointestinal stromal tumor (GIST) constitutes up to 1% of all malignant neoplasms of the gastrointestinal tract, with the stomach and small intestine being the most frequently affected organs. The purpose of this report is to present the first published case of synchronous duodenal and jejunal GISTs. CASE REPORT A 57-years old male patient with type II diabetes complained of asthenia and vertigo, resulting from anemia. On upper digestive endoscopy, a friable lesion was found in the second portion of the duodenum. The biopsy diagnosed GIST and its removal was indicated. During the surgical procedure, a second tumor was found in the jejunum, which was also removed. Anatomopathological examination of this second lesion also revealed GIST with the same cytological features. Digestive reconstruction was performed in Roux-en-Y of the jejunum sectioned distally to the tumor with the open part of the duodenum. The patient evolved without complications, was discharged on the third postoperative day and has been followed up for eleven years without any other treatment and without neoplastic recurrence. Food transit occurs almost exclusively through the duodenum. CONCLUSION This is the first report of two synchronous GISTs of duodenum and jejunum. After removal of both tumors, the Roux-en-Y reconstruction adequately closed the opened duodenum, but food transit persisted physiological through the duodenum.
A Criminology of Moral Order
Authors: Boutellier Hans
Published: April 2022

Moral order is disturbed by criminal events, however traditionally, issues around morality have been neglected by criminologists. Using the moral perspective, Boutellier bridges the gap between people's emotional opinions on crime, and criminologists' rationalised answers to questions of crime and security.
Characterization and Evaluation of Cotton-growing Soils of Ghatanji Tehsil, District Yavatmal, Maharashtra
Authors:   ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur-440033, Pakhre D. U. , Karthikeyan K. ,   ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur-440033, Kumar Nirmal ,   ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India, Tiwary P. ,   ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India, Chandran P. ,   ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Published: April 2022

The present investigation was carried out in the Ghatanji tehsil of Yavatmal district, Maharashtra to characterize and evaluate the soil suitability for the cotton crop. Soil resource inventory at 1:10,000 scale was undertaken to establish the soil-landform relationship. Five soil series were identified with the phases on nine landform units. These calcareous clayey soils were shallow to deep (33 to 140 cm) and had their colour in 10YR hue with value 3 to 4 and chroma 1 to 6. The soils were neutral to moderately alkaline with electrical conductivity ranging from 0.11 to 1.35 dSm-1 and had, very low to medium in organic carbon content (0.11 to 0.95%) The surface horizon of all the soils had medium sub-angular blocky structures but sub-surface horizons had medium to coarse and moderate to strong sub-angular to angular blocky structure. The saturated hydraulic conductivity (SHC) of the soils varied from 0.0 to 6.52 cm hr-1. The available water content ranged from 4.60 per cent to 22.2 per cent in the surface horizon and increased with depth. The COLE valuer anged from 0.09 to 0.21 cm. Calcium was the dominant cation on the exchange complex followed by magnesium, sodium and potassium. Taxonomically these soils were classified as Leptic Haplusterts, Sodic Haplusterts, Lithic Haplustepts and Typic Haplustepts at the subgroup level. Parametric land evaluation techniques (Sys & Riquier’s) indicated marginally suitable to not suitable (Sys criteria) and good to poor (Riquier Index) for growing the cottn crop in Ghatanji tehsil of Yavatmal district.
Effect of Integrated Nutrient Management on Soil Properties, Yield and Quality of Indian Mustard (Brassica juncea L.)
Authors:   Tirhut college of Agriculture, Dr. Rajendra Prasad Central Agricultural University, Pusa- 848124, Singh Sanjay Kumar , Chandan Shivendu ,   Tirhut college of Agriculture, Dr. Rajendra Prasad Central Agricultural University, Pusa- 848124, Tiwari Sanjay ,   Tirhut college of Agriculture, Dr. Rajendra Prasad Central Agricultural University, Pusa- 848124, Singh Pankaj ,   Tirhut college of Agriculture, Dr. Rajendra Prasad Central Agricultural University, Pusa- 848124
Published: April 2022

A field experiment was conducted at research farm of Tirhut College of Agriculture, Dholi, Bihar during winter (Rabi) season of 2016-17 on sandy loam soil to study the effect of Integrated nutrient management on soil properties, yield and quality of Indian mustard (Brassica juncea L.). The experiment was laid out in randomized block design (RBD) with eleven treatments and three applications. The results indicated that application of 75% RDF+40kg S+ 5t vermicompost ha-1+Azotobacter+PSB produced the highest grain (1.79 t ha-1), stover yield (6.17t ha-1), oil content (40.86%) and protein content in seed (14.60 %). The free fatty acid content ranged from 1.28 to 1.59%, in different treatments which did not crossed the permissible limit of 2% while erucic acid varied from 44.66 to 51.34% in the mustard oil.
Identification of Promising Chewing Cane and Optimising the Doses of N, P and K for Cane Yield and Quality
Authors:   Oil Seed Research Station, Tamil Nadu Agricultural University, Tindivanam-604002, Thiruvarassan S. , Jayachandran M. ,   Agricultural College and Research Institute, Tamil Nadu Agricultural University, Thanjavur-614902
Published: April 2022

The field experiments were carried out during 2018 – 2019 and 2019 – 2020 at Sugarcane Research Station, Cuddalore in Split plot Design with three replications. There were six main plot of chewing canes landraces viz., Vengattanpatti, Cuddalore (L1), Thirukattupalli, Thanjavur (L2 ), Thiruvalarcholai, Trichy (L3), Chinnamanur, Theni (L4), Melur, Madurai (L5) and Kalipatty, Salem (L6), while the sub plot had NPK levels of 50% RDF (F1), 75% RDF (F2), 100% RDF ( F3), 125% RDF (F4) and Farmer practice (F5). Chewing sugarcane was harvested at 10 months after planting for worship and chewing purpose during the Pongal festival celebration. The result showed that maximum mean germination (60%), tiller production (183 on 120 DAP), plant height (167 cm), number of marketable cane (110 no ha-1) and cane yield (178 t ha-1) were recorded with 125% RDF for Vengattanpatti land race. Brix (21.00%), Pol (17.81%), Purity (80.25), CCS (12.56%) and B: C ratios of 5.00 were associated with F4 and L1 treatment combinations.
PREDICTION OF SOCIAL LAG IN MEXICO: A MACHINE LEARNING APPROACH FROM ECONOMIC UNIT DATA
Authors: Ávila-Solís Pablo Rodrigo , González-Camacho Juan Manuel , Vargas-Chanes Delfino , Peréz-Rodríguez Paulino
Published: April 2022

Social lag in Mexico is officially calculated at the municipal level every five years, based on data from the population and housing census, by the National Council for the Evaluation of Social Development Policy (Consejo Nacional para la Evaluación de la Política de Desarrollo Social, CONEVAL). However, it is advisable to have annual forecasts of social lag for the follow-up of public policies. This study presents a machine learning approach to predict the classes or degrees of social lag (high, medium, low) at the municipal level in Mexico, based on information on economic units from the 2015 National Statistical Directory of Economic Units (Directorio Estadístico Nacional de Unidades Económicas, DENUE). Three supervised machine learning classifiers were implemented: logistic regression, support vector machine and random forests; and they were trained and tested in prediction based on information from counts of economic units, in their different categories, population and geographic coordinates of the municipalities; likewise, objective social lag classes were used at the municipal level, calculated with 2015 census information, reported in the literature. The criteria for evaluating the performance of the classifiers were the F-macro value, the overall accuracy and the area under the curve (ROC). The results indicate that the best overall performance was obtained with the random forest classifier with an F-macro value of 0.713 and an overall classification accuracy of 0.716; and F1-macro values for the high, medium, and low social lag classes of 0.596, 0.730, and 0.822, respectively. This classifier was used to predict social lag for 2016 and 2017. The results showed that there is a relationship between social lag and economic units aggregated at the subsector level, and that the proposed approach represents a viable and low-cost alternative for predicting social lag when census information is lacking.