bluuebunny/crossref_metadata_2025 huggingface dataset:
Rethinking Mental Health Wellness Among Adolescents: An Integrative Review Protocol of Mental Health Components
Authors: Orth Zaida , Wyk Brian van
Published: October 2020

Background: Adolescence have been overlooked in global public health initiatives as this period is generally considered to be the healthiest in an individual’s life course. However, the growth of the global adolescent population along and their changing health profiles have called attention to the diverse health needs of adolescents. However, the increased attention toward adolescent health has accentuated existing gaps as global health reports have emphasised that there is a continued need for valid and reliable health data. In this context, evidence has shown that mental health issues constitute one of the greatest burdens of disease for adolescents. The paucity of research on adolescent mental health and wellbeing may be related to the lack of validated instruments. This integrative review aims to unpack the meaning of mental health wellness among adolescents and its associated constructs by analysing and synthesising peer-reviewed empirical and theoretical research on adolescent mental health. In doing this, we will develop a working definition of adolescent mental health wellness that can be used to develop an instrument aimed at measuring adolescent mental health wellness.Methods: The integrative review is guided by the five steps described by Whittemore and Knafl. A comprehensive search strategy which will include carefully selected terms that correspond to the domains of interest (mental health wellness) will be used to search for relevant literature on electronic databases, grey literature and government or non-governmental organisations (NGO) websites. Studies will be included if they describe and/or define general mental health wellbeing in adolescent populations aged 10-19. The screening and reporting of the review will be conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Data from the integrative review will be analysed using narrative framework synthesis for qualitative and quantitative studies Conclusion: This integrative review aims to search for and synthesise current research regarding adolescent mental health wellbeing to identify how wellbeing is being described and conceptualised. We aim to identify gaps and to contribute to a more comprehensive definition of mental health wellness which can aid in the development of an age- and culturally appropriate measure of adolescent mental health wellness
Methodology for Optimization of the Electric Wire Arc - Spraying Process to the Mixture of Coatings 140MXC-530AS and 140MXC- 560AS Using a Multi-objective Genetic Algorithm
Authors: Rojas Héctor F. , Guzmán María A. , Luna Oscar E. , Aragón Diana F.
Published: October 2020

The Corporation of Science and Technology for the Development of the Maritime and Fluvial Shipbuilding Industry COTECMAR has been using for more than 4 years the process of electric arc thermal projection with commercial materials such as 530AS, 560AS and 140MXC to mitigate corrosion phenomena and wear of the different devices that make up the boats. The problem lies in mixing these materials (140MXC-530AS and 140MXC-560AS) to produce dissimilar coatings, making it more difficult to optimize the process, whose problem lies in the parameterization of the arc-beam thermal imaging equipment. In the first phase of the project, a Taguchi L9 (34-2) model (fractional factorial orthogonal arrangement) was used to produce the coatings, taking into account the projection parameters of the equipment such as current (A), voltage (V) Primary air pressure (Pp) and secondary air pressure (Ps), which were considered as input variables or experiments for the optimization process. Subsequently the coatings were characterized by techniques such as Scanning Electron Microscopy (SEM) and microhardness to take these data as attributes or output of results in order to obtain the minimization of the size of the projected particles (corrosion) and the microhardness maximization of the coatings (wear). Symbolic regression was used as a technique for obtaining the mathematical models (objective functions), which was done through the "Eureqa Formulize-Desktop" program, because it is considered very complex the modeling of all input variables by conventional mathematical methods. The adaptation of the NSGA-II Multi-Objective Genetic Algorithm was performed through a structured programming in "Matlab", being able to verify that the optimal Pareto fronts obtained in the runs with this Algorithm meet the requirements of the objective functions which are related with the attributes of the selected coatings.
Numerical Study on Flow Characteristics of Airfoil With Bionic Micro-Grooves
Authors: Wu Zhenren , Yang Yufei , Liu Mei , Zhang Kaishun
Published: October 2020

For the purpose of exploring the influence of the location of the bionic micro grooves on the flow characteristics of the airfoil, three airfoil models with bionic grooves were established according to the different positions of the bionic grooves. Large eddy simulation is used to numerically simulate the flow of different airfoils. Compared with the smooth airfoil, the flow characteristics and aerodynamic performance parameters of the bionic micro-groove airfoil are analyzed at 6° angle of attack, 24 m/s and 30 m/s speed. The results show that the three types of bionic grooved airfoil suppress the thickness and flow length of the separation zone, making the reattachment position of the separation zone more forward than that of the smooth airfoil, thus having different degrees of separation of the airfoil surface boundary layer. Control effect. In addition, the existence of bionic micro-grooves reduces the vortex structure in the near-wall zone, reduces the center height of the separation zone, and reduces the normal velocity gradient, which weakens the energy dissipation in the flow. Airfoil-H1 airfoil has the best flow characteristics and aerodynamic performance at 24 m/s, the drag reduction rate is the largest, reaching 16.99%, and the lift-to-drag ratio increases by 16.34%. The Airfoil-H2 airfoil has the best effect at 30 m/s, the drag reduction rate is the largest, reaching 18.09%, and the lift-to-drag ratio increases by 18.86%. Airfoil-H3 airfoil has a lower effect, but the effect becomes more pronounced as the speed increases. As the mainstream speed increases from 24 m/s to 30 m/s, the optimal airfoil will gradually transition from Airfoil-H1 airfoil to Airfoil-H2 airfoil regardless of flow characteristics or aerodynamic performance parameters. It is found that there is the best matching value between the location of the bionic groove and the mainstream speed, so that the groove can play the best improvement effect.
Pyoderma Gangrenosum Mimicking Antiphospholipid Antibody Syndrome in a Child With Juvenile Systemic Lupus Erythematosus
Authors: gürgöze metin kaya , Kara Aslıhan , sarı Mehmet yusuf , Çalık İlknur , Akarsu Saadet
Published: October 2020

Background: Although pyoderma gangrenosum (PG) -like lesions have been rarely described in adults with the antiphospholipid antibody syndrome (APS) and systemic lupus erythematosus (SLE), the occurrence of PG as a preceding manifestation of APS in children with SLE has not been reported until. We present a young girl with SLE and APS who developed progressive extstensive ulcerations that were consistent with PG.Case presentation: A 14-year-old girl with a 2-year history of SLE was admitted to our department, complaining painful crusted ulcerations on her legs. Skin biopsy was reported as PG. However, she did not respond to immunosuppressive therapy administered. When her skin biopsy findings is reassessed in keeping with the positive anticardiolipin antibody results, superficial small vessel microthrombosis was observed. Diagnosis of APS and PG developing secondary to SLE were made. It was resulted in marked clinical improvement with anticoagulation therapy in addition to immunosuppressives as is recommended in APS. Conclusions: Based in clinical, pathological and response to proposed treatment, we can state that PG -like lesions in children with SLE could be considered as a secondary form of APS.
Meta-Analysis of the Association Between Body Mass Index and All-cause Mortality in Patients with Cardiogenic Shock
Authors: Meng Fan-hua , Guo Fei-yan , Abulimiti Burebiguli , Zhao Kai-di , Dong Ying , Ma Xiang , Ma Yi-Tong , Fu Zhen-Yan
Published: October 2020

Background: the correlation between BMI and in-hospital mortality of patients with cardiogenic shock is still controversial. We hope to explore whether there is an "obesity paradox" in patients with cardiogenic shock through meta-analysis. Methods PubMed, EMbase and Cochrane databases were searched by computer to include clinical studies related to BMI all-cause mortality of patients with cardiogenic shock. The search time was from the establishment of the database to July 2020. After screening documents, extracting data and evaluating quality according to the inclusion and exclusion criteria, two evaluators used RevMan5.3 statistical software provided by Cochrane Collaboration Network for Meta-analysis. Results There was no significant difference in all-cause mortality (OR=0.86, 95% CI 0.71-1.06, P=0. 16) between the obese and the non-obese patients with cardiogenic shock. In subgroup analysis, in the American population, developed countries and retrospective studies, the all-cause mortality in the obesity group of patients with cardiogenic shock is lower than that of the non-obese group (OR=0.86, 95% CI 0.71-1.06, P=0. 16; OR=0.71,95%CI0.65-0.77, P＜0.00001; OR=0.71，95%CI0.66-0.76, P＜0.00001).Conclusion For patients with cardiogenic shock, there is an "obesity paradox", there is no significant difference in all-cause mortality between obese group and non-obese group. In the subgroup analysis, it was found that the in-hospital all-cause mortality rate of patients with cardiogenic shock in obese group was lower than that in non-obese group according to the country, economic development level and research type. The exact cause of this phenomenon requires more clinical trials and meta-analysis in the future.
Essential genes and miRNA-mRNA network contributing to the pathogenesis of idiopathic pulmonary arterial hypertension
Authors: Hao Shengyu , Jiang Pan , Xie Liang , Xiang Guiling , Liu Zilong , Hu Weiping , Wu Qinhan , Li Shanqun
Published: October 2020

Background: Idiopathic pulmonary arterial hypertension (IPAH) is a life-threatening disease. Owing to its high fatality rate and narrow therapeutic options, identification of the pathogenic mechanisms of IPAH is becoming increasingly important.Methods: In our research, we utilized the Robust Rank Aggregating (RRA) method to integrate four eligible PAH microarray datasets and identified the significant differentially expressed genes (DEGs) between IPAH and normal samples. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were performed to analyze their functions. The interaction network of protein-protein internet (PPI) was constructed to explore the correlation between these DEGs. The functional modules and hub genes were further identified by the weighted gene coexpression network analysis (WGCNA). Moreover, a miRNA microarray dataset was involved and analyzed to filter differentially expressed miRNA (DE-miRNAs). Potential target genes of screened DE-miRNAs were predicted and merged with DEGs to explore a miRNA-mRNA network in IPAH. Some hub genes were selected and validated by RT-PCR in lung tissues from PAH animal model.Results: A total of 260 DEGs, consisting of 183 upregulated and 77 down-regulated significant DEGs were identified, and some of those genes were novel. Their molecular roles in the etiology of IPAH remained vague. The most crucial functional module involved in IPAH mainly enriched in biological processes, including leukocyte migration, cell chemotaxis, and myeloid leukocyte migration. Construction and analysis of the PPI network showed that CXCL10, CXCL9, CCR1, CX3CR1, CX3CL1, CXCR2, CXCR1, PF4, CCL4L1, and ADORA3 were recognized as top10 hub genes with high connectivity degrees. WGCNA further identified five main functional modules involved in the pathogenesis of IPAH. 12 upregulated DE-miRNAs and 9 downregulated DE-miRNAs were identified. Among them, four downregulated DEGs, and eight upregulated DEGs were supposed to be negatively regulated by three upregulated DE-miRNAs, and three downregulated DE-miRNAs, respectively.Conclusions: This study identifies some key and functional coexpression modules involved in IPAH, as well as a potential IPAH-related miRNA-mRNA regulated network. It provides deepening insights into the molecular mechanisms and provides vital clues in seeking novel therapeutic targets for IPAH.
Active Galactic Nuclei as Factories for Eccentric Black Hole Mergers
Authors: Samsing Johan , Bartos Imre , D'Orazio Daniel , Haiman Zoltan , Kocsis Bence , Leigh Nathan , Liu Bin , Pessah Martin , Tagawa Hiromichi
Published: October 2020

Black hole mergers detected by LIGO and Virgo continue delivering transformational discoveries. The most recent example is the merger GW190521, which is the first detected with component masses exceeding the limit predicted by stellar models, and the first with non-zero orbital eccentricity. The large masses can be explained by build up through successive mergers, which has been suggested to occur efficiently in the gas disks of active galactic nuclei (AGN). The eccentricity, however, is a major puzzle. Here we show that AGN-disk environments naturally lead to a very high fraction of highly eccentric mergers, if interactions between binaries and singles are frequent, and the interactions are constrained to a plane representing the AGN-disk. By deriving a statistical solution to the chaotic 3-body problem with the inclusion of General Relativistic corrections, we find in our fiducial AGN-disk model that up to 70 percent of all black hole mergers could appear with an eccentricity >0.1 in LIGO/Virgo. Besides representing the most effective mechanism for producing eccentric mergers presented to date, our results have also profound implications for the origin of GW190521, and open up new lines of research on black hole scatterings in disk environments with far-reaching implications for gravitational wave astrophysics.
Identification of potential hub genes associated with skin wound healing based on time course bioinformatic analyses
Authors: Gao Wei , Zhu Hai-jun , Fan Meng
Published: October 2020

The skin is the largest organ of the body and has many functions. Skin wound has become a significant healthcare problem due to the increasing number of trauma and pathophysiological conditions. In an attempt to achieve a more comprehensive understanding of the molecular pathogenesis of wound healing (WH), gene expression profiles of 37 biopsies collected from patients undergoing split-thickness skin graft at five different time points were downloaded from two data sets (GSE28914 and GSE50425) in the Gene Expression Omnibus (GEO) database. According to the principal component analysis, the collected samples were divided into four phases, which are intact phase, acute wound phase, inflammation phase and remodelling phase. Subsequently, different expression genes, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway functional enrichment analyses and protein-protein interaction (PPI) network were performed in each phase. Furthermore, based on the PPI results, hub genes in each phase were identified by Molecular Complex Detection combined with ClueGO algorithm. This comprehensive bioinformatic re-analysis of GEO data provides new insights into the molecular pathogenesis of WH and the potential identification of therapeutic targets for the treatment of WH.
Evaluation of the Hemostatic Effect of a Combination of Hemostatic Agents and Fibrin Glue in a Rabbit Venous Hemorrhage Model
Authors: Takizawa Katsumi , Okazaki Daiki , Takegawa Yoshitaka , Koga Yuki , Sagata Masataka , Michishita Kenichi , Shinya Noriko
Published: October 2020

BackgroundIn neurosurgery, it is important to use local hemostatic agents. We have explored a more powerful method of hemostasis by the combination of commercially available hemostatic agents with fibrin glue in the hopes of synergistic effects.MethodA bleeding model was constructed by puncturing the rabbit posterior vena cava with a needle. After applying the sample to the bleeding point, compression was performed for 10 seconds. If temporary hemostasis was achieved after pressure release, a 30 second wash was performed to confirm that ultimate hemostasis was achieved. Up to three hemostasis attempts were performed on the same bleeding point until hemostasis was achieved, and the number of attempts required for hemostasis was counted. If hemostasis was not achieved after three attempts, it was counted as four times. Four groups were evaluated: (1) gelatin sponge alone, (2) gelatin sponge + fibrin glue, (3) oxidized cellulose alone, and (4) oxidized cellulose + fibrin glue; each group was tested 16 times.ResultsThe median value (range minimum value–maximum value) of the number of hemostatic attempts in Group 1 to Group 4 was 3 (1–4), 1 (1–1), 4 (4–4), and 4 (2–4). In Group 2, there were two test exclusions owing to deviations of the test procedure.ConclusionsThe compatibility of gelatin sponge and fibrin glue was very good, with a very strong and rapid hemostatic effect compared to other methods, showed its usefulness. This combination method may be effective for a variety of venous hemorrhages in neurosurgery.
Near infrared spectroscopy (NIRS) based high-throughput online assay for key cell wall features that determine sugarcane bagasse digestibility
Authors: Li Xinru , Ma Fumin , Liang Chengping , Wang Maoyao , Zhang Yan , Shen Yufei , Adnan Muhammad , Lu Pan , Khan Muhanmmad Tahir , Huang Jiangfeng , Zhang Muqing
Published: October 2020

Background: The improvement of sugarcane cell wall structure is a promising strategy to enhance the bagasse digestibility to improve its prospects as a bioenergy crop. In this context, cellulose crystallinity (CrI) and lignin are the key parameters that influence the saccharification efficiency. Therefore, this study was conducted to develop a high-throughput assay for online characterization of these cell wall features in sugarcane. Results: A total of 838 different sugarcane genotypes were collected at different growth stages during 2018 and 2019. A continuous variation distribution of near-infrared spectroscopy (NIRS) was observed among the sugarcane samples. Due to significant diversity of the cell wall features in the sampled population of the crop, seven high quality calibration models were developed through online NIRS calibration. All of the generated equations displayed coefficient of determination (R2) values higher than 0.8 and high ratio performance deviation (RPD) values over 2.0 in calibration, internal cross validation, and external validation. Particularly, the equations for CrI and the total lignin content exhibited the RPD values as high as 2.56 and 2.55, respectively, indicating their excellent prediction capacity. Furthermore, the offline NIRS assay was also performed. A comparable calibration was observed between the offline and online NIRS analyses, suggesting that both of the two strategies would be applicable for estimating cell wall characteristics. Nevertheless, as online NIRS assay offers greater advantages for large-scale screening jobs, it could be implied as a better option for high-throughput cell wall features prediction. Conclusions: This study, as a foremost attempt, explored an online NIRS assay for high-throughput assessment of key sugarcane cell wall attributes in terms of CrI, lignin content, and its proportion in sugarcane. Consistent and precise calibration results were obtained in NIRS modeling; insinuating this strategy as a reliable approach for large-scale screening of promising sugarcane germplasm for cell wall structure improvement and beyond.
A Case report of a Knee Tuberculosis- arthritis in a mid aged lady in India 
Authors: Basu Srishti , Mukherjee Dattatreya
Published: October 2020

Tuberculosis (TB) is a common disease in developing countries but now days the incidence decreased due to the community use of BCG vaccine after birth. A 55 years old female contacted through tele-medicine with history of Right knee pain for last 3 months. CT and MRI of Right knee is referred. The CT and MRI suggested the Knee Tuberculosis(Rice body Appearance) so the patient is referred to the near by internal Orthopedic department for anti tuberculosis treatment.
Clinical efficacy of corticosteroids in the early stage of worsening of COVID-19 pneumonia
Authors: Liu Zheng , Wang Hui , Liu Jia-Qi , Wang Qian , Li Jing , Jia Cui-Jiao , Gao Chang-Lang , Li Jian-Min , Zhao Dong-Fang
Published: October 2020

Background: The World Health Organization (WHO) recommends using corticosteroids in patients with severe coronavirus disease 2019 (COVID-19) and acute respiratory distress syndrome (ARDS), and a large randomized controlled clinical trial in the UK found that dexamethasone was effective in reducing the number of deaths in patients with severe COVID-19.Case presentation: Herein, we described a case of COVID-19 with the clinical characteristics of the mild-symptomatic stage deteriorating to a critically ill state, who showed dramatic improvement with corticosteroids in the early stage of worsening of COVID-19 pneumonia.Discussion: This article further discusses the most suitable timing and dosage of corticosteroid to maximize its effect during the worsening of COVID-19 pneumonia.Learning points:• One of the main pathophysiological hypotheses for severe COVID-19 pneumonia is related to cytokine storm and viral load.• The clinical factors should be considered as the initial sign of a cytokine storm, and corticosteroid therapy may be useful in these patients.
Covid-19 – Disease Caused By Sars-Cov-2 Infection – Vaccine And New Therapies Research Development
Authors: Nowakowska Elżbieta , Michalak Sylwia Sulimiera
Published: October 2020

Severe acute respiratory syndrome coronavirus is a new infectious disease caused by a novel coronavirus (SARS-CoV-2). In February 2020 WHO renamed the disease to coronavirus disease 2019 (COVID-19). Coronaviruses belong to the family of Coronaviridae, order Nidovirales. Scientists have visualized the appearance of the SARS-CoV-2 using microscopic techniques, which has a crown-like shape and contains four structural proteins – S, E, M and N. ACE2 (angiotensin converting enzyme 2) is a receptor to which SARS-CoV-2 virus particles bind. The primary test to diagnose infection is the RT-PCR (Real time RT-PCR). Research is underway to identify vaccine against SARS-CoV-2 and therapeutic treatments for COVID-19.

1. Introduction. 2. Epidemiology and pathogenesis of the disease. 3. Molecular structure, division and origin of coronaviruses. 4. Coronavirus binding receptors. 5. Ways of transferring infection. 6. Symptoms and course of infection. 7. Preventive recommendations. 8. Characteristics of tests used to diagnose infections caused by SARS-CoV-2 coronavirus. 9. Studies on a vaccine against SARS-CoV-2 virus. 10. COVID-19 – treatment guidelines – seeking new therapies. 11. Summary
Distribución de tierras de cultivo en comunidades campesinas de Paruro, Cusco-Perú
Authors: Zapata Benjamín , Fernándezi Adolfo , Ladrón de Guevara Oscar , Cosio Herbert
Published: October 2020

El objetivo fue describir la situación de la parcelación y distribución de las tierras al interior de las comunidades campesinas y así contribuir al análisis de la condición de pobreza en que se encuentran sus pobladores. El estudio tuvo un enfoque cuantitativo, no experimental y descriptivo. El muestreo fue aleatorio simple. La muestra estuvo constituida por 96 familias de nueve comunidades campesinas de la provincia de Paruro. La identificación de parcelas asignadas a las familias, se hizo con la ayuda de imágenes satelitales obtenidas con SasPlanet. El promedio total de parcelas por familia fue 8,9 rango de 2 a 23. El promedio de extensión total de tierra por familia fue 3,6794 hectáreas con rango entre 0,1257 a 36,3169. Se concluye que el fraccionamiento y distribución de las tierras no responde a adecuados perfiles de desarrollo agropecuario, en parte, como consecuencia de las deficiencias institucionales y deficiente capacitación de sus miembros. La inadecuada parcelación de las tierras induce a preservar unidades de autoconsumo y tecnologías tradicionales con baja productividad y pobreza.
La investigación pedagógica y la metodología ABI percibida por los estudiantes de una Universidad Privada
Authors: Alarcón Ronald , Flores Heyden
Published: October 2020

El presente trabajo de investigación trata del abordaje de la didáctica basada en la investigación y como es percibida por los estudiantes de formación magisterial. Dentro del plano de los aprendizajes situados, el aprendizaje basado en la investigación es uno de los más fecundos que se puede utilizar en la formación docente, permite que el futuro docente desarrolle habilidades para reflexionar sobre su labor, identificar problemas y proponer una intervención que terminará en una nueva práctica denominada praxis ergo nueva teoría. El objeto de estudio es indagar sobre la aplicación del aprendizaje basado en la investigación y como se desarrolla al interior de las aulas, en tanto que el mismo parte de la formulación adecuada de un problema, siendo ello compatible con el proceso de problematización, ya que se parte de la realidad, de la experiencia obtenida en la práctica pedagógica a partir de lo cual se realiza una construcción critico reflexiva del aprendizaje siendo el detonante para partir con la investigación ya que el estudiante siente curiosidad por indagar sobre el problema que no lo deja avanzar en su quehacer docente.
Mediation of human resource management in the linkage between performance and culture in an emerging economy
Authors: Linh Huynh Quang
Published: October 2020

The linkages between corporate culture, corporate performance, and human resource management (HRM) practice have been broadly investigated, but, none of the previous studieshave analyzeda mediation mechanism in the relevant research models. This article aimed to analyze the complicated linkages among corporate culture, performance, and HRM practice. Especially, it aimed to underline the mediation of HRM in the research model. The research data were collected in Vietnam as one of the quickly developing countries, receiving a humble amount of research on that issue. Multiple regression analyses were employed to scrutinize the causal correlation from corporate culture to performance, while the mediating procedures were applied to investigate the mediating mechanism. The research findings reveal that clan, adhocracy, and market cultures likely improve corporate performance, whereas hierarchy culture negatively influences corporate performance. Furthermore, HRM practice was evidenced to partially mediate the effects of clan, market, and hierarchy culture on performance. Nevertheless, it fully mediates the influence of adhocracy culture on performance. This research is one of the first to link HRM practice to the relationship between corporate culture and performance, and then explore HRM mediation. The empirical results could help researchers and business managers in developing economies more deeply understand the complicated links among corporate culture, performance in business, and the mediation of HRM practice to make better decisions on corporate culture and HRM for their enterprises. Ultimately, they can gain better corporate performance.
Reducing Allergenicity by Biocatalytic Conversion of Whey Protein Using Aspergillus oryx season
Authors: Podlegaeva Tatiana , Kozlova Oksana , Kriger Olga , Poturaeva Natalia
Published: October 2020

Introduction. More than 170 foods can cause allergic reactions in humans. The list of potential allergens includes a lot of dairy products. To reduce the antigenic properties, dairy raw materials can be subjected to thermal treatment. However, prolonged heating reduces the nutritional value, solubility, and digestibility of the final product. Biocatalytic conversion is considered a more effective way to reduce the allergenicity of milk proteins and dairy products.

Study objects and methods. The research featured the bioconversion process of milk whey using an enzyme complex of fungal protease and exo-peptidase produced by Aspergillus oryx season. The research provided an optimal concentration of the enzyme preparation, as well as temperature parameters, reaction time, and the effect of pH on the intensity of the process. The experiment involved standard research methods. The mass fraction of free amino acids was determined by distribution chromatography after protein hydrolysis.

Results and discussion. The research helped to define the effect of enzymatic treatment time and the pH on the hydrolysis of serum proteins after bioconversion. The indicator of the degree of hydrolysis and its time was affected by the concentration of the introduced enzyme preparation. The maximum degree of hydrolysis was observed at pH = 4.0 ± 0.1 with an enzyme-substrate ratio of 1:700. The degree of hydrolysis in samples with an enzyme-substrate ratio of 1:1,000 and 1:700 was almost the same. Therefore, the enzymesubstrate ratio of 1:1,000 proved more effective. The concentration of many important amino acids increased, which indicated the hydrolytic cleavage of the protein. The research made it possible to determine the most effective parameters of the process of biocatalytic conversion of whey enzyme by the protease complex Aspergillus oryx season: the ratio of enzyme-substrate – 1:1,000, time – 60–90 min, pH – 4.0 ± 0.1, temperature – 35–45°C.

Conclusion. The whey samples subjected to biocatalytic conversion by an enzyme complex of the genus Aspergillus oryx season showed the presence of low-molecular peptides in its composition, which indicated the effectiveness of the process and reducing the allergenicity of the whey protein.
Представления о понятии «служение» представителей различных профессиональных групп
Authors: Барыкина Анастасия И.
Published: October 2020

Introduction. This paper examines the ideas about ‘serving’ among representatives of various professional groups, including civil servants, servicemen of the National Guard of the Russian Federation, and firefighters and rescuers of the Ministry of the Russian Federation for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters (EMERCOM of Russia). Methods. The study used expert evaluations to collect and to structure information (expert opinions) about the concept of ‘serving’ and involved civil servants, servicemen of the Russian National Guard, and firefighters and rescuers of EMERCOM of Russia. Content analysis was used to carry out a qualitative and quantitative analysis of the content of experts’ responses concerning the concept of ‘serving’. Results and Discussion. The linguistic units from the experts’ responses were combined into 5 categories of content-analysis: ‘attitude towards work’, ‘fulfillment of civic and official duties’, ‘helping others’, ‘personality traits’, and ‘serving God’. In ideas of civil servants, serving is associated with the categories of ‘helping others’, ‘attitude towards work’, ‘fulfillment of civic and official duties’. Servicemen characterize serving using the categories of ‘fulfillment of civic and official duties’ and ‘attitude towards work’. The categories of ‘personality traits’, ‘helping others’, ‘attitude towards work’, ‘fulfillment of civic and official duties’ are the most significant in ideas about ‘serving’ among firefighters and rescuers of EMERCOM of Russia. All the experts understand serving as a professional activity aimed at helping others and fulfilling civic and official duties, which is accompanied by an emotional and value attitude towards work. Differences in the understanding of serving by representatives of various professional groups may be explained by the content of their professional activities. This study expands our understanding of the concept of ‘serving’ as a psychological phenomenon. The findings obtained in the study can be readily used for psychological and motivational support of specialists from these professional groups.
Cтруктура ближнего порядка и антиструктурные дефекты олова в пленках аморфного и кристаллического Ge-=SUB=-2-=/SUB=-Sb-=SUB=-2-=/SUB=-Te-=SUB=-5-=/SUB=-
Authors: Марченко А.В. , Теруков Е.И. , Насрединов Ф.С. , Петрушин Ю.А. , Серегин П.П.
Published: October 2020

Методом абсорбционной мессбауэровской спектроскопии на примесных центрах 119Sn показано, что атомы германия в структуре аморфных и поликристаллических пленок Ge2Sb2Te5 имеют различную симметрию локального окружения (тетраэдрическую в аморфной фазе и октаэдрическую в кристаллической фазе). Методом эмиссионной мессбауэровской спектроскопии на примесных центрах 119mSn, образующихся после радиоактивного распада материнских атомов 119Sb и 119mTe, идентифицированы антиструктурные дефекты олова в узлах сурьмы и теллура кристаллических пленок Ge2Sb2Te5. Ключевые слова: антиструктурные дефекты, мессбауэровская спектроскопия, Ge2Sb2Te5.
Свойства структуры и оптических фононов в нанокристаллах InSb, синтезированных в Si и SiO-=SUB=-2-=/SUB=-
Authors: Тысченко И.Е. , Чжан Ж.
Published: October 2020

Интерес к созданию и изучению нанокристаллов InSb на основе кремния обусловлен необходимостью создания гибридных интегральных схем, объединяющих в себе элементы с различными функциональными свойствами. Локализация оптических фононов в кристаллах с пониженной размерностью может оказывать влияние как на оптические, так и на электрические свойства этих кристаллов. В данной работе проведен сравнительный анализ свойств оптических фононов в нанокристаллах InSb, ионно-синтезированных в решетке Si, а также в нанокристаллах InSb в пленках SiO2, созданных методами ионно-лучевого синтеза и радиочастотного магнетронного распыления. Свойства оптических фононов в нанокристаллах InSb объяснены с точки зрения влияния структурных свойств окружающей матрицы. Ключевые слова: InSb, кремний, оксид кремния, нанокристаллы, синтез.
Наноиндентирование и механические свойства материалов в субмикро- и наношкале. Недавние результаты и достижения (О б з о р)
Authors: Головин Ю.И.
Published: October 2020

The review discusses the details of various materials mechanical behavior in submicro- and nanoscale. Significant advances in this scope result from the development of wide family of load based precise nanotesting techniques called nanoindentation. But nowadays, nanomechanical properties are studied not only by nanoindentation techniques in narrow sense, i.e. local loading of macro, micro and nanoscale objects. Nanomechanical load testing is discussed here within a wider scope employing precise deformation measurement with nanometer scale resolution caused by various types of low load application to the object under study including uniaxial compression or extension, shearing, bending or twisting, optionally accompanied by in situ monitoring sample microstructure using scanning and transmission electron microscopy and Laue microdiffraction technique. The main courses of experimental techniques development in recent ten years along with the results obtained using them in single, poly and nano crystalline materials, composites, films and coatings, amorphous solids and such biomaterials as tissues, living cells and macromolecules are described. Special attention is paid to deformation size effects and atomic mechanisms in nanoscale. This review is a natural continuation and development of the review published at Fiz.Tverd.Tela vol.50, issue 12, 2008 of the same author that discusses details of nanomechanical properties of solids. Current review includes wider range of nanomechanical testing concepts and recent achievements in the scope.
The work was supported by RFBR grant for project #19-12-50235.
Аллотропные модификации кобальта при химическом осаждении
Authors: Чжан А.В. , Подорожняк С.А. , Мальцев В.К. , Краюхин И.Н. , Патрин Г.С.
Published: October 2020

The effect of the acidity of solutions on the crystal structure of cobalt during its chemical precipitation is reported. On the basis of structural, magnetic studies, as well as studies by nuclear magnetic resonance, it was shown that a change in the acidity of the working solution leads to the precipitation of cobalt in various allotropic modifications in the immediate environment: by the type of hcp in the region of small (up to ~ 8.5) and by the type of fcc in the region large (over ~ 8.5) pH values. The formation of these modifications of cobalt is associated with size effects, which are caused by a decrease in the size of its particles with increasing pH.
Магнитные состояния ионов Fe-=SUP=-2+-=/SUP=- в Fe-=SUB=-x-=/SUB=-Mn-=SUB=-1-x-=/SUB=-S, индуцированные химическим давлением
Authors: Абрамова Г.М. , Князев Ю.В. , Баюков О.А. , Кубрин С.П.
Published: October 2020

The effect of chemical pressure (x) on the spin state of iron ions in FexMn1-xS single crystals (0.12≤ x≤0.29) is studied by the method of Mössbauer spectroscopy in the range 4.2-300 K. Features of the formation of the paramagnetic and antiferromagnetic phases for solid solutions are revealed. It was found that when x changes in FexMn1-xS, the Mn2 + cations are replaced by Fe2 + cations in the high-spin state. A decrease in the interionic distances in FexMn1-xS causes a change in the state of Fe2 + ions in the samples at x = 0.25 and 0.29. In the magnetically ordered phase at 4.2 K, the changes in the asymmetry parameter of the electric field gradient tensor (EFG) and the angle between the directions of the magnetic moment and the principal axis of the electric field gradient from 21o in the sample from x = 0.12 to 33o at x = 0.29 were observed.
Синтез, кристаллическая структура, люминесценция и теплофизические свойства TbGaGe-=SUB=-2-=/SUB=-O-=SUB=-7-=/SUB=-
Authors: Денисова Л.Т. , Молокеев М.С. , Крылов А.С. , Александровский А.С. , Иртюго Л.А. , Белецкий В.В. , Денисов В.М.
Published: October 2020

Твердофазным методом из исходных оксидов Tb2O3, Ga2O3 и GeO2 синтезирован германат TbGaGe2O7. С использованием рентгеновской дифракции определена его структура. При комнатной температуре измерены спектры люминесценции. Методом дифференциальной сканирующей калориметрии исследовано влияние температуры на теплоемкость оксидного соединения. По экспериментальным данным Cp=f(T) рассчитаны термодинамические свойства. Ключевые слова: галлий германат тербия, твердофазный синтез, кристаллическая структура, люминесценция, высокотемпературная теплоемкость, термодинамические свойства.
Температурные свойства диэлектрической проницаемости и оптические свойства многослойной структуры вариозонного титаната бария-стронция
Authors: Григорьев Л.В. , Семенов А.А. , Иванов А.А. , Седых Е.А.
Published: October 2020

Представлены результаты исследования оптических свойств и температурной зависимости диэлектрической проницаемости многослойной структуры вариозонного сегнетоэлектрика титаната бария-стронция, нанесенного на монокристаллическую подложку из лейкосапфира. Приведены результаты математического моделирования и экспериментального исследования коэффициента пропускания и отражения структуры в спектральной полосе 300-1100 nm при малых углах падения света на поверхность. Представлены результаты экспериментального исследования температурной зависимости диэлектрической проницаемости в диапазоне температур 300-400 K. Ключевые слова: сегнетоэлектрик, титанат бария-стронция, тонкие пленки сегнетоэлектриков, магнетронное распыление, радиофотоника.
Сравнение спектров поглощения ионов Nd-=SUP=-3+-=/SUP=- в кристаллах NdFe-=SUB=-3-=/SUB=-(BO-=SUB=-3-=/SUB=-)-=SUB=-4-=/SUB=-, Nd-=SUB=-0.5-=/SUB=-Gd-=SUB=-0.5-=/SUB=-Fe-=SUB=-3-=/SUB=-(BO-=SUB=-3-=/SUB=-)-=SUB=-4-=/SUB=- и Ho-=SUB=-0.75-=/SUB=-Nd-=SUB=-0.25-=/SUB=-Fe-=SUB=-3-=/SUB=-(BO-=SUB=-3-=/SUB=-)-=SUB=-4-=/SUB=-
Authors: Сухачев А.Л. , Малаховский А.В. , Nelson C.S. , Гудим И.А. , Темеров В.Л.
Published: October 2020

Polarized optical absorption spectra in the range of some f-f transitions of Nd3+ ions in Ho0.75Nd0.25Fe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4 and NdFe3(BO3)4 crystals were compared at 90 K. Spectral features related to difference of local environment of Nd3+ ions in the mentioned crystals were revealed. In the range of 4I9/2 → 4G5/2 + 2G7/2 transition of Nd3+ ions in Ho0.75Nd0.25Fe3(BO3)4 crystal the appearance of some absorption lines owing to the change of the local symmetry during structural transition R32 → P3121 at ~ 200 K was revealed. Their intensity increases smoothly, when the temperature decreases from the transition point. Temperature dependences of lattice parameters of Ho0.75Nd0.25Fe3(BO3)4 crystal were measured. It was found that at the transition temperature there is a discontinuous change of the lattice parameter a, which indicates a phase transition of the first order. Lattice parameter c changes smoothly.
Desiring Futures
Authors: Chu Leo
Published: October 2020

In this paper, I analyze the animated television series Puella Magi Madoka Magica based on a variety of literary critical methods: neo-noir criticism, feminist epistemology and studies of technoscience, and discussion of utopia/dystopia imagination. My focus is on the depiction of desire and hope, as two interconnected but potentially conflicting concepts, in Madoka Magica which presents different philosophical edifices related to them as one central narrative tension. On the other hand, the feminist methods I utilize will demonstrate how the “genre subversion” the series introduce can be read alongside with not only magical girls’ struggle against their fates in the fiction but the real power structures and asymmetries in (post-)modern society. By highlighting the difficulties to resist a future and ethics imposed from the standpoint of dominant social groups as well as the attempt to solve such impasse by the series, the paper argues that Madoka Magica, while not committing itself to the creation of a radical alternative to the existent political or economic systems, has nonetheless affirmed the possibility and importance to have hope for futures that are yet to be imagined.
"I Hear You Just Fine": Disability and Queer Identity in Yuki Fumino's I Hear the Sunspot
Authors: Percy Corinna Barrett
Published: October 2020

Yuki Fumino’s currently ongoing series, I Hear the Sunspot, is a manga that provides a voice for those on the “outside” of society as it examines Japanese cultural attitudes toward both disability and homosexuality. Employing a range of characters, the manga confronts the problem of compulsory able-bodiedness and the need for disabled persons to fill prescribed roles, the process of moving away from self-isolation to self-acceptance, and the debate between living insularly within a disabled community or community building between disabled and nondisabled communities. Fumino uses the figure of Kohei to represent the struggles of self-acceptance as it relates to intersectional queer and disabled identities, and the figure of Taichi to represent the ‘bridge’ of community building as a catalyst to this self-acceptance in a society where both disabled and queer communities are seen as outsiders.
COVID-19 Turning Threats into Opportunities: Knowledge and Attitude of Physicians Toward Relative Advantages of Telemedicine (Preprint)
Authors: Ahmad Alaeddin Mohammad , Khalil Hadeel Omar , Al Momani Lina Sameeh , Khirfan Taghreed
Published: October 2020

UNSTRUCTURED

This study aimed to assess the knowledge and attitude of physicians toward telemedicine,
examine the readiness of organizational aspects of telemedicine application, and investigate the
knowledge and attitude of physicians toward telemedicine relative advantage moderated by
organizational aspects during infectious disease outbreaks such as COVID-19. A cross-sectional
descriptive analytical study was done using a validated questionnaire distributed to a purposive
sample of 320 Jordanian physicians. Structural equation modeling was done using AMOS 22.0.
Results supported a claim of good fit of the structural model and revealed a positive and
significant effect of both knowledge and attitude on relative advantage of telemedicine.
Moreover, there was a significant impact of organizational aspects as a moderator of the relation
between knowledge and attitude and the relative advantages of telemedicine. These results
contributed to existing literature and are beneficial to policy makers and practitioners at the
healthcare sectors.
Keywords: Knowledge, Attitude, Relative Advantages, Telemedicine, Physicians, COVID-19
OCCUPATIONAL HAZARDS AND SAFETY MEASURES AMONG HEALTHCARE WORKERS IN A TERTIARY HEALTH INSTITUTION IN SOUTHERN NIGERIA
Authors: ERAH FRANCIS OSEMHOAHU , CHIJIOKE EVERISTUS ANIAKU , UWAIBI NOEL , J AKAMIEN , OKHAWERE MARTIN
Published: October 2020

Objectives: The objectives of the study was to determine the occupational hazards HWCs face and the safety measure put in place to mitigate these hazards in a tertiary health institution in Edo State, Nigeria.

Methods: A cross-sectional descriptive study design was used to carry out this study among HWCs in a tertiary health institution. Data were analyzed with IBM-SPSS version 23 and statistical significance was set at p<0.05.

Results: Out of the 163 respondents interviewed, 50.92% of them had poor knowledge of occupational hazard while 49.08% had good knowledge. All the doctors interviewed had good knowledge as compared to a larger proportion of other HWCs who had poor knowledge of occupational hazard and this association was statistically significant. Most of respondents (96.93%) had positive attitude toward occupational hazard with few of them having poor safety measures to avoid injury in the work place.

Conclusion: Majority of Health care workers with the exception of medical doctors have poor knowledge of occupational hazards with poor safety measures though they may have positive attitude.
A Simulation Study on Increasing Capture Periods in Bayesian Closed Population Capture-Recapture Models with Heterogeneity
Authors: Gosky Ross M. , Sanqui Joel
Published: October 2020

Capture-Recapture models are useful in estimating unknown population sizes. A common modeling challenge for closed population models involves modeling unequal animal catchability in each capture period, referred to as animal heterogeneity. Inference about population size N is dependent on the assumed distribution of animal capture probabilities in the population, and that different models can fit a data set equally well but provide contradictory inferences about N. Three common Bayesian Capture-Recapture heterogeneity models are studied with simulated data to study the prevalence of contradictory inferences is in different population sizes with relatively low capture probabilities, specifically at different numbers of capture periods in the study.
Perbandingan Pengembangan Asuransi Syariah di Indonesia dan Malaysia (Analisis Aliran Mazhab Sejarah dan Law as a Tool of Social Engineering)
Authors: Agustin Inneke Wahyu
Published: October 2020

This research discusses the development of Islamic insurance or known as takaful. The focus of discussion on sharia insurance in Indonesia and Malaysia by tracing the history of regulation and the growth of the industry. These two things are compared with the conclusion that you can understand the factors that cause differences in the development of Islamic insurance in Indonesia and Malaysia. With a comparative approach, the conclusion is that Islamic insurance regulations in Indonesia and Malaysia are formed based on the soul of the nation by historical flow of law. Have the same foundation, but Indonesia is slower in responding to regulations. As a result, the growth of the Islamic insurance industry in Indonesia lags behind that of Malaysia. The basic couse is due to the role of law in Indonesia is less responsive because the law acts as a means of social control, for changes in Islamic insurance to be more developed.