bluuebunny/crossref_metadata_2025 huggingface dataset:
Сравнительный анализ методов моделирования гравитационного потенциала тел сложной формы
Authors: Юдицкая Анастасия Сергеевна , Yuditskaya Anastasiya Sergeevna , Ткачев Степан Сергеевич , Tkachev Stepan Sergeevich
Published: April 2021

Корректное моделирование гравитационного поля малых небесных тел является актуальной проблемой при решении задач сближения, посадки и исследования этих объектов. Существует ряд различных методов описания гравитационного поля, каждый из которых имеет свои достоинства и недостатки. В работе рассмотрены и приведены результаты сравнительного анализа трех наиболее известных методов представления гравитационного потенциала: модели многогранников, модели масконов, разложения по сферическим гармоникам. Построена и реализована методика сравнения точности и вычислительной сложности указанных методов для астероида, форма которого полагается известной, а масса равномерно распределена по объему. Анализ показал, что метод разложения по сферическим гармоникам вычислительно более выгоден при расчете гравитационного потенциала на большом количестве пробных точек, но является наименее точным из трех представленных в работе методов. Метод масконов на небольшом количестве пробных точек затрачивает наименьшее время и имеет более высокую точность. Метод многогранника является наиболее вычислительно затратным, но он является самым точным и его можно использовать в качестве эталонного для вычисления гравитационного потенциала однородного тела.
Моделирование волновых процессов в упругих средах на основе консервативных разностных схем
Authors: Попов Игорь Викторович , Popov Igor Viktorovich
Published: April 2021

Рассмотрены задачи численного расчета распространения деформаций в упругих теплопроводных средах. Для решения данного класса задач предложены неявные численные схемы для уравнений термоупругости и теплопроводности на неструктурированных треугольных и тетраэдральных сетках. В результате теоретических исследований показано, что предложенные схемы обладают свойствами самосопряженности и знакоопределенности разностных операторов, а также консервативностью. Также приведены результаты численных экспериментов, подтверждающие эффективность разработанной методики.
Two-Staged Revision Total Ankle Arthroplasty Surgery with Primary Total Ankle Arthroplasty System
Authors: Alsayel Faisal , Alttahir Mustafa , Wiewiorski Martin , Barg Alexej , Herrera Mario , Valderrabano Victor
Published: April 2021

Case:

Case of a 2-staged revision surgical technique for the treatment of an aseptic total ankle arthroplasty (TAA) loosening: first surgery: removal of the loosened and painful TAA Scandinavian Total Ankle Replacement, with exclusion of infection, and reconstruction of the large bone defect (bone-defect downsizing surgery); proof of successful ankle bone reconstruction by CT-scan imaging; second surgery: implantation of a primary VANTAGE TAA (ankle reconstruction with new primary TAA).

Conclusion:

The present case shows the management of a failed TAA with bone defect by performing a 2-step surgical approach: removal of loosened TAA with simultaneous bone stock restoration and then implantation of a new primary TAA. This concept is a possible alternative to a post-TAA ankle arthrodesis or to the use of a TAA revision system.
Comprehensive Arthroscopic Management for Severe Glenohumeral Arthritis in an Ultimate Fighting Championship Fighter
Authors: Ernat Justin J. , Wright Cynthia J. , Rakowski Dylan R. , Millett Peter J.
Published: April 2021

Case:

A 41-year-old, former world-champion, mixed martial arts fighter presented with debilitating pain and loss of motion because of severe glenohumeral osteoarthritis (GHOA) in the setting of a previous shoulder instability stabilization procedure. Multiple conservative treatments failed to provide permanent relief, and he elected to undergo a comprehensive arthroscopic management (CAM) procedure for his GHOA.

Conclusion:

At 2-year follow-up, the CAM procedure was effective in returning them to fighting at a professional level. The CAM procedure can be considered in young and highly active patients to restore function, preserve anatomy, and delay progression to prosthetic arthroplasty.
Surgical Treatment of a Voluminous Median Nerve Lipofibromatous Hamartoma Involving Distal Forearm
Authors: Pecchia Stefano , Guzzini Matteo , Koverech Guido , Arioli Leopoldo , Andreozzi Valerio , Perugia Dario
Published: April 2021

Case:

Lipofibromatous hamartoma (LFH) is a rare benign tumor of the peripheral nerves, which often affects upper extremity. There is no consensus regarding management of these lesions. We report a case of median nerve LFH in the volar forearm of a 24-year-old man with carpal tunnel syndrome symptoms. Clinically, the mass appeared tender to palpation, ill-defined and soft, located on the volar aspect of the left forearm. Open epineurotomy and neurolysis of the median nerve were performed with full recovery at 1 year.

Conclusion:

Surgical approach may be resolutive in patients with large masses refractory to conservative treatment.
Low-tech MALL for EFL intensive class among university students in remote areas
Authors: Hasanah Shofiyatul , Pradipta Parahita
Published: April 2021

Covid-19 pandemic situation has forced EFL teachers and students to create innovation in online classroom activities. Through a case study at one of private universities in Indonesia, this research aim at exploring the implementation of mobile phone used in learning process in low tech Mobile Assisted Language Learning (MALL). The data were collected from observation, in-depth interview, and document review. The findings reveal that mobile phone has an imperative role in concocting student to be full-fledge community, stimulating the feeling of perception, unexceptional mindfulness and teaching of socio-political and social classification. Further, mobile phone and its supporting materials in students’ tools rely upon whether there is appropriate security to keep the device, stockpiling of internet data package, wellsprings of electric supply, gracefully of each provider signal, availability to flexibility access in various areas, especially mountainous to remote area. Regarding the challenges, the students experienced multi-layer intricacies: (a) learning facilities including absence of speed data transfer capacity, (b) students’ awareness and proficiency in English, and (c) techno pedagogical insight over lecturers. This study implies that enhancement on the student capacity at low tech level of learning through mobile phone provide meaningful learning assistance, particularly in term of efficiency during classroom activities
Engaging young learners of English with multilingual digital storytelling (MDST) during covid-19 school closure
Authors: Nuroh Ermawati Zulikhatin , Retnaningdyah Pratiwi , Munir Ahmad
Published: April 2021

The use of Multilingual Multimedia Storytelling (MDST) to teach English to primary school students is nothing new in Indonesia. However, digital learning is still not implemented in practice because English in primary schools is a local subject and a foreign language. In this research, the researchers used Multilingual Digital Storytelling (MDST) as a model for encouraging and reflecting on multiliteracy in education. They understand the importance of storytelling, and interactive storytelling has self-representation and communication with others. This research explicitly outlines our experience of using MDST as a pedagogical innovation for pupils aged 12 years. In this MDST project, students co-created digital stories as multimodal texts. In this regard, they used a variety of multilingual (e.g. Javanese, Bahasa Indonesia, and English) as well as visual and technical resources, which enabled them to communicate their real-life experience through digital stories. The practical consequences of the project are that English primary school teachers will experiment with MDST to involve students in effective project-based language learning.

HIGHLIGHTS:

The multilingual digital story (MDST) -making learning provided students with a new way to tell their ownstory in a multilingual way, and to share and explore their life experiences through the production of digitalstories2. Engaging students with multilingual digital stories, they have more creatively developed their stories basedon images taken by themselves.3. English primary school teachers will experiment with MDST to engage students in language learning as aneffective method of innovative learning.
Laboratory Investigation of Permeability Impairment Caused by Asphaltene Precipitation during Screening for Gas-Injection Enhanced Oil Recovery and Pressure Change in a Major Gulf of Mexico Field
Authors: Fassihi M. R. , Turek E. , Honarpour M. Matt , Peck D. , Fyfe R.
Published: April 2021

As part of studying miscible gas injection (GI) in a major field within the Green Canyon protraction area in the Gulf of Mexico (GOM), asphaltene-formation risk was identified as a key factor affecting a potential GI project. The industry has not conducted many experiments to quantify the effect of asphaltenes on reservoir and well performance under GI conditions. In this paper we discuss a novel laboratory test for evaluating the asphaltene effect on permeability. The goals of the study were to define the asphaltene-precipitation envelope using blends of reservoir fluid and injection gas, and measure permeability reduction caused by asphaltene precipitation in a core under GI.

To properly analyze the effect of GI, a suite of fluid-characterization studies was conducted, including restored-oil samples, compositional analysis, constant composition expansion (CCE), and differential vaporization. Miscibility conditions were defined through slimtube-displacement tests. Gas solubility was determined through swelling tests complemented by asphaltene-onset-pressure (AOP) testing. The unique procedure was developed to estimate the effect of asphaltene deposition on core permeability. The 1-ft-long core was saturated with the live-oil and GI mixture at a pressure greater than the AOP, and then pressure was depleted to a pressure slightly greater than the bubblepoint. Several cycles of charging and depletion were conducted to mimic continuous flow of oil along the path of injected gas and thereby to observe the accumulation of asphaltene on the rock surface.

The test results indicated that during this cyclic asphaltene-deposition process, the core permeability to the live mixture decreased in the first few cycles but appeared to stabilize after Cycle 5. The deposited asphaltenes were analyzed further through environmental scanning electron microscopy (ESEM), and their deposition was confirmed by mass balance before and after the tests. Finally, a relationship was established between permeability reduction and asphaltene precipitation. The results from the asphaltene-deposition experiment show that for the sample, fluids, and conditions used, permeability is impaired as asphaltene flocculates and begins to coat the grain surfaces. This impairment reaches a plateau at approximately 40% of the initial permeability. Distribution of asphaltene along the core was measured at the end by segmenting the core and conducting solvent extraction on each segment.

Our recommendation is numerical modeling of these test results and using this model to forecast the magnitude of the permeability impairment in a reservoir setting during miscible GI.
Effect of Dynamic Contact Angle on Spontaneous Capillary-Liquid-Liquid Imbibition by Molecular Kinetic Theory
Authors: Tian Weibing , Wu Keliu , Chen Zhangxin , Lai Lingbin , Gao Yanling , Li Jing
Published: April 2021

Imbibition is one of the most common physical phenomena in nature, and it plays an important role in enhanced oil recovery, hydrology, and environmental engineering. The imbibition in a capillary is one of the fluid transports in porous media, and the effect of a dynamic contact angle that changes with the imbibition rate on liquid-liquid imbibition is not clear. In this paper, the molecular kinetic theory (MKT) is used to study the effect of a dynamic contact angle on spontaneous capillary-liquid-liquid imbibition at a micrometer scale. The results show that:

Using a scaling time, the effects of various forces in different imbibition systems can be compared, the influence of a dynamic contact angle on imbibition can be characterized by a frictional effect of the three-phase contact line, and the proposed model considering the effect of a dynamic contact angle is better than the model neglecting the effect of a dynamic contact angle. As the displacing phase viscosity increases, the influence of a dynamic contact angle on imbibition strengthens, which is attributed to a decrease in the viscous effect and an increase in the frictional effect during the imbibition process; as the displaced phase viscosity increases, the influence of a dynamic contact angle on imbibition weakens, which is attributed to an increase in the viscous effect and a decrease in the frictional effect during the imbibition process. As the interfacial tension increases, the frictional effect increases, with the result that the effect of a dynamic contact angle on imbibition increases. As the capillary becomes more hydrophilic, the effect of a dynamic contact angle on imbibition becomes stronger because of a decreasing viscous effect and an increasing frictional effect. As the capillary length increases, the viscous effect increases, whereas the frictional effect decreases, leading to a decrease in the dynamic contact angle effect. As the capillary radius increases, the frictional force decreases, whereas its proportion in total resistance or the frictional effect increases, resulting in an increase in the effect of a dynamic contact angle.

This work sheds light on the effect of a dynamic contact angle on capillary-liquid-liquid imbibition, including displacing phase viscosity, displaced phase viscosity, interfacial tension, capillary wettability, length, and radius. It will provide new insights into manipulating a capillary imbibition process and provide a fundamental theory for enhanced oil recovery by imbibition in conventional or unconventional reservoirs.

Supplementary materials are available in support of this paper and have been published online under Supplementary Data at https://doi.org/10.2118/205490-PA. SPE is not responsible for the content or functionality of supplementary materials supplied by the authors.
Intimate Partner Violence and Mental Health Within the Community During Lockdown of Covid-19 Pandemic
Authors: Glowacz Fabienne , Schmits Emilie , Dziewa Amandine
Published: April 2021

Background: This study took place in the context of the COVID-19 pandemic. The restrictive confinement measures put in place to counter the virus’ spread could have major consequences for the mental health and intimate relationships between romantic partners. The present research assesses the association between lockdown conditions (such as time spent at home, living environment, proximity to contamination and social contacts), mental health (including intolerance of uncertainty, anxiety and depression) and the intimate partner violence within the community. This study also proposes to evaluate the indirect effect of anxiety and depression on the relationship between intolerance of uncertainty and intimate partner violence (physical assault and psychological aggression). Methods: 1532 adults (80.8% of women, Mage=35.34) were recruited from the general population through an online self-report questionnaire completed during the lockdown. All participants were engaged in a romantic relationship and lived with their partner. Sociodemographic data, lockdown conditions, mental health and intimate partner related-variables were assessed. Results: Results demonstrate that the prevalence of physical assault was significantly higher in men, whereas the prevalence of psychological aggression was significantly higher in women. Men reported significantly more increased violence during lockdown. Women, on the other hand, were more anxious and more intolerant of uncertainty. No difference between men and women was found for depression. Anxiety and depression significantly mediate the relationship between intolerance of uncertainty and physical assault and psychological aggression. Sex does not moderate the mediation. Conclusion: Clinical implications for public health policy are highlighted, namely the necessity to consider the impact of uncertainty related to crises in increasing the risk of intimate violence between partners, and especially individual vulnerability to mental health problems associated.
The factors influencing bronchoscope passing through the glottis
Authors: Lin Xiaoxiao , Jin Xiaohui , Jin Xuru , Huang Manfang , Chen Chengshui
Published: April 2021

Background Flexible bronchoscopy is an important procedure in respiratory diseases. It is crucial whether bronchoscope can successfully pass through the glottis. The aims of the study were evaluation of differences between bronchoscope successfully passing through the glottis at one-time and repeatedly insertion at times, and analysis of various factors associated with failure of bronchoscope passing through the glottis.Methods A retrospective analysis was performed from March 2019 to May 2019, in consecutive patients who had undergone diagnostic flexible bronchoscopy. The patients were divided into two groups according to the condition of bronchoscope passing through the glottic. Demographic and clinical information collected included age, gender, body mass index, respiratory disease, patient position, procedural time, cough and bleeding of nasal mucosa. We also recorded vital signs, including pre-, intra- and post-procedure of bronchoscope passing through the glottis.Results 153 patients were in success group and 47 were in failure group. Success group was average 4 seconds shorter than the failure group (P = 0.001). Meanwhile, repeated passing through glottis was associated with an increase in the bleeding of nasal mucosa and cough. On the multivariate logistic regression, the neutral position and cough were the two factors associated with a higher risk of failure of passing through the glottis.Conclusions In conclusion, successfully passage through the glottis can save procedural time and decrease the rate of cough and bleeding of nasal mucosa. Meanwhile, the neutral position and cough are two risk factors associated with failure to pass through the glottis at one time.
“Will my Young Adult Years be Spent Socially Distancing?”: A Qualitative Exploration of UK Adolescents’ Lockdown Experiences during the COVID-19 Pandemic
Authors: Demkowicz Ola , Ashworth Emma , O'Neill Alisha , Hanley Terry , Pert Kirsty
Published: April 2021

BackgroundFor older adolescents, the COVID-19 pandemic and associated UK restrictions have arrived during a critical period in the transition to adulthood, and early research exploring impact of the pandemic paints a picture of worsened adolescent wellbeing and mental health. We set out to explore the subjective experiences of 16- to 19-year-olds during the first UK lockdown, with a particular emphasis on wellbeing and coping, in order to complement emergent quantitative evidence and inform strategies and provision for support.MethodsIn May 2020, we invited 16- to 19-year-olds based in the UK to share their experiences of the initial lockdown as part of ‘The TELL Study’. A total of 109 participants took part, submitting anonymous written accounts of their experiences via an online portal. We used reflexive thematic analysis to explore these accounts and develop rich experiential themes.Findings: We constructed seven main themes: heightened emotionality; feelings of loss, change, and uncertainty; recognising the value of self-care; efforts to think positively; opportunities for growth and development; the importance of togetherness; and frustration with government and media.ConclusionsFindings shed light on the emotional impact of lockdown and the concerns it has raised for older adolescents and offers insight into ways that they have been coping and working to stay connected. The study highlights directions for support and provision for adolescents in facilitating positive wellbeing and resilience as the consequences of the pandemic continue.
Stronger Correlation of Peak Oxygen Uptake With Distance of Incremental Shuttle Walk Test Than 6-minute Walk Test in Patients With COPD: a Systematic Review and Meta-analysis
Authors: Chae Ganghee , Ko Eun Jae , Lee Sei Won , Kim Hyun Jung , Kwak Sang Gyu , Park Donghwi , Ra Seung Won
Published: April 2021

Background: The 6-minute walk test (6MWT) and incremental shuttle walk test (ISWT) are valid and reliable measures to assess exercise capacity of patients with chronic obstructive pulmonary disease (COPD). However, the comparison of correlation between peak oxygen uptake (peak VO2) and 6MWT or ISWT distance has not been investigated. We aimed to investigate the correlation between peak VO2 and 6MWT and ISWT distances in patients with COPD through a meta-analysis.Methods: We systematically searched MEDLINE, Scopus, Embase, and the Cochrane Library up to June 30, 2020 for studies comparing the correlation of peak VO2 with either 6MWT or ISWT in patients with COPD. Meta-analysis was performed with R software using a fixed-effect model. We compared the correlation coefficient and measured the heterogeneity using I2 statistics. Results: We identified 12 studies involving 746 patients. Meta-analysis showed a significant correlation between peak VO2 and 6MWT and ISWT distances (6MWT: r = 0.65, 95% CI: 0.61 to 0.70; ISWT: r = 0.81, 95% CI: 0.74 to 0.85; p < 0.0001). The heterogeneity was lower in ISWT than in 6MWT (6MWT: I2 = 56%, p = 0.02; ISWT: I2 = 0%, p = 0.71). Subgroup analysis showed a higher correlation coefficient in the low exercise capacity group than in the high exercise capacity group in both field tests. No risk of publication bias was identified.Conclusions: 6MWT and ISWT were significantly correlated with peak VO2. The findings suggest that ISWT had a stronger correlation with peak VO2 than did 6MWT in patients with COPD.Trial registration: CRD 42020200139 at crd.york.ac.uk/prospero/
Prediction of Food Production Using Machine Learning Algorithms of Multilayer Perceptron and ANFIS
Authors: Nosratabadi Saeed , Ardabili Sina , Lakner Zoltan , Mako Csaba , Mosavi Amir
Published: April 2021

Advancing models for accurate estimation of food production is essential for policymaking and managing national plans of action for food security. This research proposes two machine learning models for the prediction of food production. The adaptive network-based fuzzy inference system (ANFIS) and multilayer perceptron (MLP) methods are used to advance the prediction models. In the present study, two variables of livestock production and agricultural production were considered as the source of food production. Three variables were used to evaluate livestock production, namely livestock yield, live animals, and animal slaughtered, and two variables were used to assess agricultural production, namely agricultural production yields and losses. Iran was selected as the case study of the current study. Therefore, time-series data related to livestock and agricultural productions in Iran from 1961 to 2017 have been collected from the FAOSTAT database. First, 70% of this data was used to train ANFIS and MLP, and the remaining 30% of the data was used to test the models. The results disclosed that the ANFIS model with Generalized bell-shaped (Gbell) built-in membership functions has the lowest error level in predicting food production. The findings of this study provide a suitable tool for policymakers who can use this model and predict the future of food production to provide a proper plan for the future of food security and food supply for the next generations.
The Lactate/Albumin Ratio As A Prognostic Factor For Short Time Mortality In Critically Ill COVID-19 Patients
Authors: GOK Abdullah , KASAPOGLU Umut S , DELEN Leman ACUN , OZMEN Ferda , BANAZILI Susen
Published: April 2021

Introduction: The prognostic role of the initial lactate/albumin ratio (LAR) in the critically ill COVID-19 patients remains unknown. We aim to evaluate the prognostic value of the initial LAR in predicting 30-days mortality in critically ill COVID-19 patients and compare with the initial level of serum lactate and albumin for the prediction of mortality.Materials and methods: We performed a single-center retrospective and observational clinical study between April 2020 and December 2020. Patients’ clinical and laboratory variables that evaluated in this study were collected within the first 24 hours following the ICU admission.Results: A total of 282 critically ill COVID-19 patients were included in the study. The mean age of the patients was 66.34±12.08 years and 179 (63.5%) of patients were male. Patients who died within 30 days had higher lactate levels (p<0.001), lower levels of serum albumin (p<0.001), and higher levels of LAR (p<0.001). ROC analysis showed that LAR (AUC=0.824) was superior to the serum albumin (AUC=0.644) and lactate levels (AUC=0.795) for the prediction of mortality. Overall ICU mortality rates (75.6% vs 13.1%, p<0.001) were significantly higher in patients with LAR >0.60. LAR >0.60 is a significant and independent prognostic factor for the 30-day mortality in critically ill COVID-19 patients.Conclusion: LAR has a better prognostic performance for predicting 30-day mortality in critically ill COVID-19 patients compared with lactate and albumin
Using Analytical Techniques and Cole Crop Field Responses to Quantify 2,4-D plus Glyphosate Removal from the Surface of Plastic Mulch
Authors: Hand Lavesta C. , Eason Kayla M. , Randell Taylor M. , Grey Timothy L. , Richburg John S. , Coolong Timothy W. , Culpepper A. Stanley
Published: April 2021

Planting cole crops and leafy greens in plastic mulch free of summer and winter annual broadleaf weeds is challenging. Because these crops are often grown as a second or third crop on mulch, weeds emerge in previously punched plant holes, tears in plastic, and row middles. Without the ability to use tillage and with limited herbicide options available for weed control, achieving a weed-free planting window is not often feasible. Additional herbicide options are needed, but their interaction with plastic mulch must be understood. Therefore, research has determined the persistence of preplant applications of 2,4-D tank-mixed with glyphosate applied over plastic mulch. Analytical laboratory analyses of plastic samples from field experiments, in conjunction with bioassays using broccoli (Brassica oleracea var. botrytis L.) and collard (Brassica oleracea var. viridis L.), evaluated herbicide dissipation. Analytical studies determined that 0.5 cm of irrigation after herbicide application and 1 day before planting removed 99% of 2,4-D, and 100% of glyphosate from the plastic mulch. Waiting an additional 14 days after application and irrigation further reduced the amount of 2,4-D on the plastic mulch 88% to 95%. For the field bioassay, preplant applications of 2,4-D tank-mixed with glyphosate resulted in 7% or less visual broccoli or collard injury without influencing crop growth, biomass, early season yield, or total yield as long as the mulch was washed with 0.5 cm of irrigation before planting. These studies also demonstrated there were no differences between the 1× and 2× use rates with respect to all response variables measured. Results suggest that 2,4-D and glyphosate can be effectively removed from the surface of plastic mulch with irrigation or rainfall before planting broccoli and collard.
Differences in Pollination Efficiency Among Three Bee Species in a Greenhouse and Their Effects on Yield and Fruit Quality of Northern Highbush ‘Bluecrop’ Blueberry
Authors: Sun Qi , Zhao Xingnan , Wu Lei , Zhao Jimin , Yang Yunfei , Zhang Yanwen
Published: April 2021

Different pollinators exhibit different adaptability to plants. Here, we compared the performance in visiting frequency and pollination efficiency among three bee pollinators (Bombus terrestris, Apis cerana, and Apis mellifera) on greenhouse-grown northern highbush ‘Bluecrop’ blueberry plants and evaluate their effects on yield and fruit quality. Our results indicated that the duration of daily flower-visiting of B. terrestris was 24 and 64 minutes longer than that of A. cerana and A. mellifera, respectively, and the visiting time of a single flower for B. terrestris was substantially shorter than the other two bee species, and pollen deposition on the stigma from single visit by B. terrestris was twice and three times that of A. cerana and A. mellifera, respectively. The yield of individual plants pollinated by B. terrestris showed an increase of 11.4% and 20.0% compared with the plants pollinated by A. cerana and A. mellifera, respectively, with the rate of Grade I fruit (>18 mm diameter) reaching 50.8%, compared with 32.9% and 22.5% for A. cerana and A. mellifera groups, respectively. Moreover, the early-to-midseason yield of plants pollinated by B. terrestris was higher, and the ripening time was 3 to 4 days earlier. An artificial pollination experiment demonstrated that seed set of high (≈300), medium (90–110), and low (20–30) pollination amounts were 43.0%, 42.5%, and 10.5%, respectively, and the corresponding mean weights of single fruits (related to the seed number inside) were 2.8, 2.7, and 1.2 g, respectively. The highly efficient pollination of B. terrestris was attributed to its behavior of buzz-pollination. Therefore, it is preferential for pollination of ‘Bluecrop’ blueberry in the greenhouse.
THE INFLUENCE OF CREATIVE STYLE PREFERENCE ON CREATIVE BEHAVIOR OF INDONESIA’ CREATIVE INDUSTRY WORKERS
Authors: Setiadi Nugroho J. , Inderadi Regina
Published: April 2021

This study explored the role of creative style preference on employees’ involvement in creative behavior and the moderating effect of creative style preference on the relationship between organisational culture and employees’ creative behavior. The study sample included 128 creative industry workers from 6 small and medium enterprises in Indonesia. Data was collected at Jakarta in early 2018 and gathered by using a questionnaire consisted of 2 cultural behavior dimension to measure workers’ creative behavior, namely presenting creative, concrete and practical ideas and presenting creative suggestions. Questionnaire was using Likert scale and the result was analysed with Exploratory Factor Analysis (EFA) method. The analysis indicted that the two distinct dimensions of creative behavior (presenting creative and practical ideas and presenting creative suggestions) were determined workers’ creative behavior. These two dimensions reflected the level of incremental improvement and presenting radical ideas in their activities. It is concluded that Indonesia’ creative industry workers are creative people who contributed to the productivity of an organization. It is suggested that organisations should create an organizational culture that motivates workers to improve their creativity level.
Prevenção à Violência Infantil Utilizando o Programa ACT - RAISING SAFE KIDS
Authors: De Araujo Braz dos Santos Gabriela , De Azevedo Peixoto Ana Cláudia , Ribeiro Lins Andrade Alice
Published: April 2021

O presente artigo busca demonstrar ações de prevenção à violência infantil e sua importância na proteção integral desta população. Este trabalho tem como objetivo a realização de uma Revisão Integrativa da literatura sobre o escopo dos programas de psicoeducação para cuidadores na prevenção à violência infantil e a utilização do Programa Raising Safe Kids (ACT-RSK). Foi realizado um levantamento bibliográfico nas bases de dados Scielo, BVS, Pepsic e PubMed. Foram encontrados 622 artigos nas plataformas analisadas e, seguindo a leitura dos resumos, foram excluídos os que não se referiam a temática. Somente 9 artigos atenderam aos critérios de inclusão ou exclusão. A literatura aponta que as ações de prevenção à violência infantil, bem como seu combate estão ao entorno de ações coletivas, exigindo esforço de todas as esferas que compõem o ambiente da criança. As ações preventivas que envolvam diferentes contextos são essenciais para a redução dos riscos de violência, incluindo as estratégias de proteção e promoção da qualidade de vida que integram os princípios fundamentais de atenção e de direitos desta população.
O Impacto da Pandemia causada pelo Novo Coronavírus nas Relações de Trabalho
Authors: Barroso Leonina , Silva Bastos Ana Lívia , Capute Yolanda
Published: April 2021

O presente artigo busca colher e elencar informações acerca das modificações ocorridas na seara trabalhista em decorrência da pandemia causada pelo Novo Coronavírus, através de leitura de legislação e posicionamentos de juristas em artigos publicados em página na internet, levando em consideração a atualidade do tema.

Em virtude da pandemia, foi necessário elaborar leis que pudessem atender o atual cenário, isto é, criando legislação que estabelecesse o isolamento social e a quarentena e, consequentemente, suprimindo um direito constitucionalmente previsto em prol da coletividade.

A MP 927/20, cuja vigência já encerrou estabeleceu medidas trabalhistas a serem tomadas com o intuito de dirimir o impacto dessa pandemia nas relações de trabalho, como o teletrabalho, a antecipação de férias, concessão de férias coletivas, dentre outras.

Além dessa, foi publicada a MP 936/20 que foi transformada na lei nº 14.020, a qual dispõe sobre medidas complementares para enfrentar a pandemia, bem como a concessão do benefício emergencial. Importante ressaltar que o referido benefício é concedido aos trabalhadores que tiveram a sua jornada reduzida ou o contrato de trabalho suspenso, enquanto o auxílio emergencial é concedido às pessoas que estão desempregadas ou que são autônomas, aos trabalhadores informais e aos microempresários individuais.

É imperioso frisar que as empresas precisam cumprir as determinações governamentais e em caso de descumprimento serão passíveis de responsabilização civil e administrava. Nesse caso, a responsabilidade aplicada é a subjetiva, isto é, independe de comprovação de culpa se estiverem presentes o nexo causal e a conduta danosa.

A COVID-19 poderá ser considerada como doença ocupacional se ficar comprovado que ela foi contraída no ambiente de trabalho. Se o trabalhador necessitar ficar afastado por mais de 15 dias para se tratar, a sua remuneração ficará a cargo do INSS.

No tocante ao encerramento das atividades de determinada empresa, pode-se afirmar que a sua extinção pode se dar por caso de força maior ou por factum principis que ocorre quando a empresa fecha por determinação governamental e as despesas ficam a cargo da administração pública.

Logo, apesar de estarmos diante de uma situação completamente atípica e apesar de ser necessário criar legislação para se adequar as modificações ocorridas na sociedade, é imprescindível que essas mudanças sejam feitas observando sempre a dignidade da pessoa humana e os direitos e garantias fundamentais previstos na nossa Carta Magna.

Isto posto, após análise de legislação acerca do tema, conclui-se que a solução viável para minimizar o impacto da pandemia na sociedade brasileira é aplicar às relações trabalhistas o princípio da proporcionalidade e razoabilidade para que nenhuma das partes sejam oneradas ou favorecidas. Por isso, o governo poderia utilizar o FAT – Fundo de Amparo ao Trabalhador e o PPE – Programa de Proteção ao Empregado com o intuito de aliar os interesses do empregado e empregador.
Plant-Derived Natural Compounds for the Treatment of Amyotrophic Lateral Sclerosis: An Update
Authors: Mohi-ud-din Roohi , Mir Reyaz Hassan , Shah Abdul Jalil , Sabreen Saba , Wani Taha Umair , Masoodi Mubashir Hussain , Akkol Esra Küpeli , Bhat Zulfiqar Ali , Khan Haroon
Published: April 2021

Background:

Amyotrophic lateral sclerosis (ALS) is a motor neuron disease (MND) that typically causes death within 3-5 years after diagnosis. Regardless of the substantial scientific knowledge accrued from more than a century ago, truly effective therapeutic strategies remain distant. Various conventional drugs are being used but are having several adverse effects.

Objective/Aim:

The current study aims to thoroughly review plant-derived compounds with well-defined ALS activities and their structure-activity relationships. Moreover, the review also focuses on complex genetics, clinical trials, and the use of natural products that might decrypt the future and novel therapeutics in ALS.

Methods:

The collection of data for the compilation of this review work was searched in PubMed Scopus, Google Scholar, and Science Direct.

Results:

Results showed that phytochemicals like-Ginkgolides, Protopanaxatriol, Genistein, epigallocatechingallate, resveratrol, cassoside, and others possess Amyotrophic lateral sclerosis (ALS) activity by various mechanisms.

Conclusion:

These plant-derived compounds may be considered as supplements to conventional (ALS). Moreover, further preclinical and clinical studies are required to understand the structure-activity relationships, metabolism, absorption, and mechanisms of plant-derived natural agents.
Advance Synthetic Approaches to 1,2,3-triazole Derived Compounds: State of the Art 2004-2020
Authors: Sahu Adarsh
Published: April 2021

Background:

1,2,3-triazole is considered a widely explored scaffold by medicinal
chemists because of its therapeutic importance. The structural characteristics of 1,2,3-triazoles allow
it to mimic certain functional groups demonstrating its utility to prepare new medicinal compounds
using the concept of bioisosterism and molecular hybridization. Centered on Huisgens cycloaddition
reaction, over the past decade and a half, developed click chemistry approaches to furnish
triazole derivatives with various applications ranging from drugs to bioconjugation linkers.

Objective:

In the present review, we aim to highlight the different approaches developed for the
synthesis of 1,2,3-triazole derivatives and in particular, advances in synthetic methods for the last
16 years. This review is also intended to help researchers for finding potential future directions and
scope in the development of synthetic strategies.

Conclucion:

As summarized through the compilation of recent advances for 1,2,3-triazole synthesis,
it is clear that these protocols have numerous advantages such as cleaner reaction profile, shorter
reaction times, excellent product yields, environmentally benign milder reactions, and safe operations.
Mechanical behaviour of 3D printed Lightweight Nano-composites
Authors: Doddamani Mrityunjay
Published: April 2021

Background:

The nanoclay (NC) and glass micro balloons (GMB) based reinforced polymer composites are explored extensively through traditional processing methods. NC shows substantial enhancement in mechanical properties. Polymer composites developed by reinforcing GMB fillers provide a substantial reduction in weight, which is essential in the marine, aerospace, and automotive field. In this study, an attempt is made by developing polymer nano composites by reinforcing NC and GMB particles.

Objective:

The paper deals with 3 dimensional printing (3DP) of lightweight nanocomposite foam (NF) developed by mixing nanoclay (NC) and glass micro balloons (GMB) in high-density polyethylene (HDPE). The NF blend is prepared by keeping NC at 5 weight %. Subsequently, GMBs are added by volume (20 - 60 %) to NC/HDPE blend to realize lightweight NFs.

Methods:

The lightweight feedstock filaments are developed by extruding the blends using a single screw extruder. The extruded NF filaments are used as an input in a 3D printer to print NFs. The density of extruded filaments and prints are measured. The printed NFs are subjected to tensile and flexural testing.

Conclusion:

With an increase in GMB loading the density of both filaments and prints decreases. Compared to neat HDPE, printed NFs show ~30 % weight reducing potential. The tensile, flexural modulus and strength increases with GMB loading. NFs exhibited superior mechanical performance as compared to HDPE and NC/HDPE. Further, the property map reveals that the 3D printed NFs show superior tensile, flexural modulus, and strength in comparison with injection and compression-molded foams.
Common Femoral Artery Aneurysm : A Challenging Diagnostic And Treatment Of A Rare Case
Authors: Asri Devi Adityawati Ayu , Kurnianingsih Novi , Satrijo Budi , Prasetya Indra
Published: April 2021

Background: Aneurysm of the peripheral artery is a rare vascular pathology, especially aneurysm in the common femoral artery. Here, we presented a case report of a right common femoral artery aneurysm caused by infection. Objective: This case report is aimed to explore further about the diagnosis process of rare cases in peripheral arteries to elaborate proper treatment for patients with this condition. Case Presentation: a 76-year-old man was referred to our hospital with a pulsatile groin mass at his right thigh. He had no prior history of surgery or traumas, but he has been treated in a private hospital due to septic condition, hypertension, and type II diabetes mellitus. A diagnosis of a common femoral artery aneurysm was made based on findings from physical examination and radiology examination. The patient was referred to the Cardiovascular and Thoracic Surgeon Department and scheduled for routine surgery, but on the third day of admission patient became hemodynamically unstable, and on re-examination, the aneurysm was found had been ruptured. Emergency surgery was conducted on that day. During surgery, the patient was hemodynamically stable with PRC transfusion. The result of aneurysm excision and the bypass was remarkable. Conclusion: The common femoral artery aneurysm is uncommon. When a femoral artery aneurysm is suspected, a search for such aneurysms should be conducted. In this kind of patient, straightforward surgical management yields positive outcomes.
Optimization of Microwave-Assisted Extraction (MAE) Time and Material to Solvent Ratio of Gembili (Dioscorea esculenta) Water-Soluble Polysaccharides (WSP)
Authors:   Universitas Brawijaya, Putri Widya Dwi Rukmi , Riyanto Eko Isro ,   Universitas Brawijaya, Heliana Almaria ,   Universitas Brawijaya, Wellang Ambo ,   Universitas Brawijaya, Zubaidah Elok ,   Universitas Brawijaya
Published: April 2021

Abstract Gembili (Dioscorea esculenta) is a tuber-producing plant containing 14.63% inulin, a Water-Soluble Polysaccharide (WSP). This study aims to determine the optimum point of material to solvent ratio and Microwave-Assisted Extraction (MAE) time needed to extract gembili WSP, and determine the WSP's characteristics produced. The optimization process uses the Response Surface Methodology-Central Composite Design (RSM-CCD) with Design Expert 7.0 software. The material to solvent ratio's minimum and maximum points are 1:25 g/L and 1:45 g/L, while the minimum and maximum points of extraction time are 20 minutes and 40 minutes. This study observed 13 experimental combinations and responses from gembili WSP yield, WSP powder inulin levels, and WSP solubility. The results showed that the optimum conditions of material to solvent were at a 1:33.81 g/mL ratio, and the extraction time was 29.26 minutes. This optimum condition resulted in 32.42% WSP yield, 40.8% inulin content in WSP powder, 26.98% WSP solubility, 12.24% WSP water content, and 49.3 cp WSP viscosity. These results indicate that extraction using a microwave can increase WSP's rich inulin yield from gembili tubers. Keywords: gembili, inulin, microwave, optimization, Water-Soluble Polysaccharides
DEVELOPMENT OF FUNCTIONAL AUDITOR COMPETENCY MODEL IN INSPECTORATE INSTITUTION
Authors: Amleni Rosarianto Mariano
Published: April 2021

This study aims to review and develop auditor inspectorate competency model in Timor Tengah Utara (TTU) regency to support the implementation of supervisory duties. This study uses a qualitative-descriptive method with data collection techniques through observation and interview. Data analysis method used in this research is literature study. The results of this study found problems related to work discipline and auditor's personal safety. The development of competencies safety awareness requires auditors to be able to identify and improve situations that have an impact on personal safety in each process of carrying out supervision whereas the development of competencies time management requires auditors to be able to plan and regulate the use of time in setting priorities in carrying out supervisory duties with the result that they can be carried out effectively.
Privacy-Oriented Technique for COVID-19 Contact Tracing (PROTECT) Using Homomorphic Encryption: Design and Development Study
Authors: An Yongdae , Lee Seungmyung , Jung Seungwoo , Park Howard , Song Yongsoo , Ko Taehoon
Published: April 2021

Background

Various techniques are used to support contact tracing, which has been shown to be highly effective against the COVID-19 pandemic. To apply the technology, either quarantine authorities should provide the location history of patients with COVID-19, or all users should provide their own location history. This inevitably exposes either the patient’s location history or the personal location history of other users. Thus, a privacy issue arises where the public good (via information release) comes in conflict with privacy exposure risks.

Objective

The objective of this study is to develop an effective contact tracing system that does not expose the location information of the patient with COVID-19 to other users of the system, or the location information of the users to the quarantine authorities.

Methods

We propose a new protocol called PRivacy Oriented Technique for Epidemic Contact Tracing (PROTECT) that securely shares location information of patients with users by using the Brakerski/Fan-Vercauteren homomorphic encryption scheme, along with a new, secure proximity computation method.

Results

We developed a mobile app for the end-user and a web service for the quarantine authorities by applying the proposed method, and we verified their effectiveness. The proposed app and web service compute the existence of intersections between the encrypted location history of patients with COVID-19 released by the quarantine authorities and that of the user saved on the user’s local device. We also found that this contact tracing smartphone app can identify whether the user has been in contact with such patients within a reasonable time.

Conclusions

This newly developed method for contact tracing shares location information by using homomorphic encryption, without exposing the location information of patients with COVID-19 and other users. Homomorphic encryption is challenging to apply to practical issues despite its high security value. In this study, however, we have designed a system using the Brakerski/Fan-Vercauteren scheme that is applicable to a reasonable size and developed it to an operable format. The developed app and web service can help contact tracing for not only the COVID-19 pandemic but also other epidemics.