bluuebunny/crossref_metadata_2025 huggingface dataset:
Infecção pelo SARS-CoV-2 na gestação: revisão de literatura
Authors: Baldow Caroline Costa , Torres Ludmila Ventura , Almeida Marcela Cristina Bueno Neiva , Silva Vanessa Yuri Nakaoka Elias da
Published: May 2021

Objetivo: Avaliar as implicações da infecção pelo SARS-CoV-2 na gestação, bem como as recomendações e evidências sobre o manejo clínico para esclarecer os devidos cuidados obstétricos. Revisão bibliográfica: A COVID-19, doença causada pelo vírus SARS-CoV-2, é considerada pandemia pela Organização Mundial da Saúde (OMS). As particularidades fisiopatológicas e as características clínicas da doença ainda possuem dados limitados na literatura, assim como acerca dos aspectos relacionados ao acompanhamento pré-natal, à transmissão vertical, à via de parto, à amamentação, e às complicações em mulheres gestantes e puérperas. Contudo, atualmente se sabe que há predominância de sintomas respiratórios e prevalência de gravidade nos grupos de risco. Considerações finais: As taxas de complicações e de repercussões da doença em mulheres gestantes e puérperas se assemelham às taxas de mulheres não gestantes, permitindo prosseguir, sem prejuízos relevantes, o pré-natal, a via de entrega e a amamentação com segurança quanto ao curso da gestação, assim como do puerpério.
Transplante cardíaco no tratamento da miocardiopatia chagásica
Authors: Sanches João Gabriel Leal Contini , Sabadini Juliana , Fagundes Lorena Leal , Colombelli Luna Hussein , Montenegro Maria Luiza Vasconcelos , Silveira Rafaela Abrantes da , Garcia Rayla Pons , Bueno Stella Leony , Oliveira Thaciane Silva de , Soares Alexandre Magno Macário Nunes
Published: May 2021

Objetivo: Analisar o procedimento do transplante cardíaco no tratamento da miocardiopatia chagásica levando em consideração o diagnóstico, indicação, procedimento, complicações e particularidades que abordam esse assunto, para melhor compreensão dessa técnica. Revisão bibliográfica: A doença de Chagas (DC) é causada pelo protozoário flagelado Trypanosoma cruzi, representando a terceira mais prevalente infecção parasitária no mundo. Os relatos de reativação da DC são achados comuns em condições imunossupressoras, como AIDS, doenças autoimunes, câncer e, obviamente, imunossupressão farmacológica para evitar a rejeição do transplante. Dentre as complicações peri-operatórias, salienta-se hábitos de vida destrutivos, como tabagismo e etilismo, os quais promovem o agravamento de problemas cardiovasculares. Já as complicações pós operatórias englobam as neoplasias, como o linfoma e o sarcoma de Kaposi, e a possibilidade de reativação do T. Cruzi, devido à imunossupressão induzida, a qual se inicia após a intervenção cirúrgica, a fim de evitar a rejeição aguda do enxerto. Considerações finais: Finalmente, salienta-se a importância de um conhecimento holístico a respeito das particularidades da enfermidade chagásica, como o risco de reinfecção em pacientes imunossuprimidos, no intuito de reduzir as chances de complicações pós-operatórias.
Relato de experiência acerca do cuidado integral de portadores de sofrimento psíquico na atenção primária de saúde
Authors: Nascimento André Haddad , Cardoso Thais Bassi , Beatta Henry Luchetti , Rotundo Beatriz Podsclan , Brito Gabriela Costa
Published: May 2021

Objetivo: Relatar como a atenção primária de saúde pode ser uma facilitadora do reconhecimento, captação e acompanhamento de pacientes com transtornos psiquiátricos, participando de programas de matriciamento e redirecionando o fluxo visando à implementação de uma clínica ampliada e integral. Relato de experiencia: Consiste em uma análise descritiva das atividades realizadas em Unidades Básicas de Saúde de um município do interior de São Paulo, voltadas ao atendimento de pacientes portadores de transtornos psíquicos. As consultas eram conduzidas pelos acadêmicos do curso de medicina, seguidas de discussão dos casos com os membros da equipe da saúde primária, abordando temas como raciocínio clinico, diagnósticos, tratamentos e sobretudo como deveria ser conduzida a reinserção destes pacientes em atividades cotidianos. Considerações finais: A partir dessa reflexão, evidenciou-se a importância da integração de diferentes tipos de serviços para a integralidade do cuidado destinado ao portador de transtornos mentais. Assim como, possibilitou aos acadêmicos a compreensão na prática sobre o funcionamento de programas como o a Política Nacional de Saúde mental, as Redes de Atenção Psicossocial (RAPS), os Centros de Atenção Psicossocial (CAPS) e como estes se correlacionam ao atendimento nas Estratégias de Saúde da Família.
Autoeficácia materna no cuidado do recém-nascido prematuro: utilização da técnica brainstorming
Authors: Poty Nalma Alexandra Rocha de Carvalho , Rocha Silvana Santiago da , Silva Raiana Soares de Sousa e , Silva Damila Rufino de Holanda e , Costa Roama Paulo Ulisses Vaz da , Neto Joaquim Guerra de Oliveira , Silva Bárbara de Jesus Cunha da , Freire Kassya Fernanda , Caminha Jéssica de Moura , Santos Shelma Feitosa dos
Published: May 2021

Objetivo: Levantar as principais dificuldades acerca dos cuidados aos recém-nascidos prematuros após a alta hospitalar, por meio de um diagnóstico situacional, utilizando a técnica brainstorming para o levantamento das informações. Métodos: Trata-se de uma pesquisa do tipo descritiva com característica qualitativa, utilizando como procedimento para coleta de dados a técnica brainstorming para levantar as principais dificuldades acerca dos cuidados aos recém-nascidos prematuros após a alta hospitalar. O período que ocorreu a pesquisa foi maio de 2019. Resultados: Ao questionar as mães sobre os cuidados domiciliares após a alta do seu filho prematuro, surgiu inicialmente sentimentos de alegria, em alguns momentos sentimentos de medo em relação ao cuidado e fragilidade do filho, dessa forma a alegria se misturou ao medo de cuidar do filho prematuro em casa. O resultado deste brainstorming gerou respostas que envolveram diversos eixos do cuidado, estas relacionadas a higiene, alimentação, crescimento e desenvolvimento, cuidados de rotina, cuidados especiais, prevenção de doenças e vacinas. Conclusão: Foi evidenciado ainda que, para as mães, o momento da alta de seus filhos está relacionado a diversos sentimentos, entre eles está o medo, a angústia, sensação de fragilidade, insegurança, além dos desafios que virão.
Re-thinking Contextualisation in Solomon Islands school leadership professional learning and development
Authors: Reynolds Martyn , Sanga Kabini , Maebuta Jack , Johansson-Fua Seu'ula
Published: May 2021

This article discusses the perceptions of Solomon Island mentors and regional administrators of a Solomon
Islands aid-funded school leadership professional learning and development intervention. The focus is on
contextualisation, used here as a broad term to refer to the adoption of ways of understanding, thinking and
working recognisable and coherent within local practice. The scope of the article includes the significance of
the configuration of relationships between delivery partners, the power of cause-based motivation, programme
delivery protocols and ways of understanding successful outcomes. Using data drawn from two perspectives in
a multi-facetted programme construction and delivery model, the article offers some provocations regarding
the potential of re-framing relationships and practices in aid-funded development programmes in educational
leadership and beyond.
Key Lessons for the Design of Consumer Protection Legislation
Authors: Becher Shmuel
Published: May 2021

No description supplied
El surgimiento de la escala regional y local en el debate sobre desarrollo: reconstitución histórica y balance teórico
Authors: González-Meyer Raúl , Micheletti-Dellamaría Stefano , Adasme-Jara Benjamín
Published: May 2021

A partir de un ejercicio de reconstitución histórico-teórica basada en la revisión de bibliografía,en el artículo se aborda el problema de cómo las escalas regional y local han sido consideradas dentrode los enfoques y estrategias de desarrollo. Ello nos muestra que la referencia a las sociedadeslocales ha adquirido una importancia reflexiva mayor y que la aproximación teórica y práctica a losespacios subnacionales, según hemos visto, ha tenido características y sentidos diferentes: en primerlugar, como un aspecto para integrar desde la lógica de hacer más compacto y dominable losespacios nacionales; luego, como escala complementaria de otras, particularmente la nacional; posteriormente,como un elemento relevante para enfrentar problemas, desafíos o posibilidades propias;en cuarto lugar, como una mirada del desarrollo que se levanta frente a otras que ponen el ejefuera de los espacios locales y, finalmente, como propuesta radicalmente crítica al desarrollo actual.
América Latina y el Caribe en el Siglo Asiático: un análisis comparativo de las relaciones de Japón y China con sus socios latinoamericanos desde la perspectiva del Derecho Internacional Económico
Authors: García Gabriel
Published: May 2021

El llamado Siglo Asiático comenzará en 2020, cuando Asia producirá más de la mitad de la riquezaglobal. Latinoamérica y el Caribe parecen no estar preparados adecuadamente para navegarsobre esta nueva realidad. El objetivo de este ensayo es contribuir a un mejor entendimiento del rolde Asia como promotor de desarrollo económico en América Latina y el Caribe, a través del análisiscomparativo de los modelos utilizados por Japón y China para promover sus relaciones económicasen la región. El estudio se realiza dentro del marco analítico del Derecho Internacional Económico.El argumento principal embozado por este trabajo es que Japón ha utilizado instrumentos formaleso hard law para construir sus relaciones con Latinoamérica y el Caribe, mientras que China ha ideadouna plataforma ecléctica, en la que se combinan las herramientas tradicionales empleadas porsus vecinos japoneses y mecanismos alternativos o soft law, que le permite crear una relación másdirecta con los países de la región, evitando la interferencia de otras potencias globales.
THE EFFICIENCY OF LAMB PRODUCTION IN THE SLAUGHTER OF THE MEAT CONTINGENT OF SHEEP AT DIFFERENT AGES
Authors:   Russian Timiryazev State Agrarian University, FEYZULLAEV F.R.
Published: May 2021

The results of the study of the infl uence of the age of slaughter of sheep at 6 and 8 months are presented. on the economic effi ciency of lamb production. When rearing and feeding rams up to 8 months of age, the feed costs per 1 kg of gain were 6.54 ECU and 746 g of digestible protein compared to 5.81 ECU and 640 g of digestible protein in rams grown up to 6 months of age. The level of profi tability of lamb production in animals sold at 6 months was 41.9%, and in sheep sold at 8 months of age-14.1%, which is 27.8% lower
EFFECT OF DIFFERENT LEVELS OF COBALT ON THE DIGESTIBILITY OF NUTRIENTS IN THE DIET OF LACTATING SHEEP
Authors:   Russian Timiryazev State Agrarian University, ZOTEEV V.S.
Published: May 2021

In physiological experiments, the infl uence of different levels of cobalt in diets on the digestibility of nutrients in the diet and the level of milk productivity of lactating sheep of the Kalmyk fat-tailed breed was studied.
BIOCHEMICAL PARAMETERS OF BLOOD AND PRODUCTIVITY OF FAT-TAILED SHEEP OF DIFFERENT BREEDS
Authors:   Russian Timiryazev State Agrarian University, ATAYBEKOV B.Y.
Published: May 2021

In the article, based on the biochemical parameters of blood, the search for interior tests for their use in predicting the signs of sheep productivity at the early stages of ontogenesis is carried out
Ukrainian music performance schools: regional aspect
Authors: Iryna Hrynchuk , Olena Spolska
Published: May 2021

The analysis of the definition of “music performance school” in musicological and music-pedagogical studies of modern domestic scientists demonstrates different methodological approaches to its interpretation. This phenomenon is considered in terms of historical and stylistic approach (N. Kashkadamova) and is included in the broader cultural and music-pedagogical context (N. Guralnyk, V. Shulgina). It deals with the problems of professional training of the teacher of art disciplines and art pedagogy (O. Rudnytska, G. Padalka, O. Oleksiuk, O. Mykhailychenko and others). As a socio-cultural and personal-value phenomenon of the music-performing and pedagogical tradition, or the factor of its preservation, transaction and transformation in the scientific discourse, the music performance school can be interpreted in a single, collective and universal dimension. In this context, the problem of studying the regionalism of music performance schools as a dynamic historical and cultural phenomenon is actualised. A thorough exploration of the history of regional piano schools has become the topic of a number of musicological studies. Thus, the works of N. Kashkadamova, T. Starukh, L. Mazepa and others are devoted to the piano art of Lviv. The educational and pedagogical traditions of this school found continuation in the activity of the pianists, pedagogues and performers of Ukraine and abroad, mostly Western Ukraine The purpose of the publication is to analyse the historical and cultural backgrounds and main aspects of the formation of professional piano performance in Ternopil at the end of the 19th — the first half of the 20th century. Based on historical, comparative and individual approaches, the figures of famous piano performers and teachers associated with Ternopil are highlighted. The initial stage of the formation of piano performance in the region during the end of the 19th — the first third of the 20th century is traced as a transition from an amateur period to academic performance and professional music education. The attention is focused on the beginning of the piano class at the branch of Lysenko Higher Music Institute (VMIL) in Ternopil. The article highlights the role of representatives of Lviv piano school, the activity of some performers, composers and pedagogues as founders of piano performance in the region. The creative figures of the performers and piano pedagogues of S. Krushelnytska TMK, V. Hnatiuk TNPU as a follower of the Lviv piano school tradition are briefly presented.
Synesthesia as a tool for development of musical semiosis among younger students
Authors: Oksana Rakhmanova
Published: May 2021

The paper reveals the concept of semiotics of art as a separate field of study that impacts the process of developing musical semiosis in younger students. Important attention is paid to creation of abstract sensory images in younger students through the perception of synesthesia phenomenon. This ensures the formation of specific synesthetic codes that allow to transmit information at a special cognitive level based on physical and emotional experience of students. Musical art is of great interest for semiotics, aimed at finding principles, components of the basis of the content formation process in the field of human sensory experience. During the twentieth century, the synesthetic paradigm had been gradually entering the scholarly apparatus of art history and music pedagogy and manifesting itself in the aesthetic aspect of those arts and sciences. While perceiving art, younger students develop metaphors of sensory perception, which unite various sensory systems. Synesthesia promotes the perception of music as the movement of the “sound body” in the imaginary space with the following coordinates: depth — the texture of the sound; vertical line — harmony; horizontal line — melody. It is music that “awakens” synesthesia, not only through the expressive and personal nature of experiencing color and sound, but also through the specifics of motility and the natural state of a person. The action mechanism of synesthesia as a means of musical semiosis is that a student perceiving or performing music switches between arts. As a result, aesthetic culture of younger students develops and opportunities for optimal achievement of music education objectives uncover.
Formation of musical-aesthetic experience of future musical art teachers as a scientific problem in Ukraine and China
Authors: Mykola Fedorets , Xingzhou Xu
Published: May 2021

The article is devoted to the problem of forming musical-aesthetic experience of future musical art teachers in Ukraine and China in the context of information society development. Relevant theoretical and empirical methods are used in the work: analysis, generalization, pedagogical observation. The content and structure of aesthetic experience, definition and structure of artistic-aesthetic experience are highlighted. It is noted that musical-aesthetic experience is one of the types of artistic-aesthetic experience, which is the basis of musical culture of the individual. The essence and structure of musical-aesthetic experience, which should be formed with the help of traditional professional (musical-pedagogical) and modern general pedagogical technologies, are revealed. The contradictions that arise in the process of training future musical art teachers, in particular for the formation of their musical-aesthetic experience, are determined. The need to expand the basic competences related to the poly-artistic education of schoolchildren is proved. Future musical art teachers of Ukraine and China should acquire these competences by forming not only musical-aesthetic, but also artistic-aesthetic experience. The need for further theoretical substantiation, practical development and experimental testing of the technology of forming musical-aesthetic experience of future bachelors and masters is emphasized. It is concluded that it is necessary to improve future musical art teachers professional training in Ukraine and China through the formation of sufficient musicalaesthetic experience, in particular during practical classes and teaching practice, as well as importance of further integrated curriculum development, which will combine art disciplines with the technology of their teaching.
Effectiveness of Hormone Based Therapies (Spironolactone and Combined Oral Contraceptives in the Management of Acne Vulgaris in Women: A Systematic review and meta-analysis
Authors:   Department of Dermatovenereology, Faculty of Medicine, Diponegoro University and Dr. Kariadi Hospital, Dr. Sutomo Street No. 16, Semarang, Indonesia.
Published: May 2021

Background: Acne vulgaris (AV) is a chronic inflammatory disease of the pilosebaceous follicular unit that often occurs. Acne is a skin disorder that is not life-threatening but is mostly complained of because it is aesthetically disruptive, which can cause significant psychological problems for sufferers. The management of acne vulgaris in female patients has its challenges. There are many histories of failed therapy using conventional therapy, such as with antibiotics or isotretinoin, and female patients have a predisposition to the condition of androgen excess. Also, the increasing awareness about limiting the use of antibiotics to prevent resistance in dermatological cases, including acne vulgaris, encourages other treatment options in the female patient population, one of which is hormone-based therapy. A systematic review and meta-analysis were performed of randomized clinical trials assessing the effects of Hormone Based Therapies (Spironolactone and Combined Oral Contraceptives) in the management of Acne Vulgaris in Women. Methods: Medline Pubmed, Scopus, Cochrane Library, the reference list, conference proceedings, researchers in the field of eligible studies were searched. Ten studies (n=1906 sub-jects) were included in qualitative analysis, of which two studies (n=1842 subjects) were included in the meta-analysis. The age of the participant was greater than 14 years old. Intervention using combined oral contraceptives (n=8) or oral spironolactone (n=2). Duration of intervention (minimum six months for COC and three months for SL) and out-comes of mean difference number of acne vulgaris lesions before and after treatment. Results: Pooling of data using random-effects model found a significant difference in the mean difference in the number of lesions after treatment in the group receiving hormone-based therapy (spironolactone and combined oral contraceptives) and those receiving control therapy (p = 0.005). The overall mean difference was -0.890 ± 0.316. A negative value indicating the number of lesions after hormone-based therapy (spironolactone and combined oral contraceptives) was significantly lower than those receiving control therapy (p = 0.005). Conclusion: From the results of the systematic review and meta-analysis conducted, it can be concluded that in the group given hormone-based therapy (spironolactone and Combined Oral Contraceptives), there was a decrease in the total number of acne vulgaris lesions compared to before treatment, and the mean difference in the number of lesions was significantly lower after getting hormone-based therapy (spironolactone and combined oral contraceptives) compared with controls.
Intra-Operative Rupture of Giant Ascending Aorta and Aortic Arch Aneurysm In Open Heart Surgery: A Successful Peri-operative Management
Authors:   Cardiovascular Surgery Department, Mohammed VI University Hospital, Marrakech, Morocco.
Published: May 2021

Introduction: Giant thoracic aortic aneurysms are rare. Most of the reported cases are not a known complication of aortic coarctation repair. Otherwise intra-operative aneurysm ruptures are rare cases but a potentially fatal complication in open heart surgery. Case report: In this article, we report the case of a 23-year-old patient with a giant ascending and arch aneurysm associated with a Standford type A chronic aortic dissection. In the patient’s history a coarctation repair at age of five years old was noted. During an open heart surgery for ascending aorta and hemi-arch replacement under cardiopulmonary bypass, aneurysm rupture occurred before aortic cross-clamp. A successful intraoperative and post-operative management was performed. The course was uneventful. The patient was extubated without neurological damage. Moreover, there were no kidney function deterioration, no digestive and limbs ischemia. Conclusion: Intra-operative aneurysm rupture is rare but is a major operative complication whose successful repair depends on an integrated intra-operative management. Cerebrovascular and heart protection are the main determinants of patient survival. Also, the surgical team’s prompt response is the key to the successful execution of the procedure.
Giant gastric carcinosarcoma infiltrating the left hepatic lobe: a case report
Authors:   1General Surgery “Ospedaliera”, Policlynics of Bari, Italy,   2Dept of General Surgery, National Institute of Gastroenterology “S. de Bellis”, Research Hospital, CastellanaGrotte (BA), Italy,   3Dept of Pathology, National Institute of Gastroenterology “S. de Bellis”, Research Hospital, Castellana Grotte (BA), Italy
Published: May 2021

Gastric carcinosarcoma is a rare biphasic tumor that consists of both carcinomatous and sarcomatous components. Clinical presentation and neoplastic markers are not specific for the disease. Moreover, CT scan cannot distinguish among gastric carcinoma, sarcoma or carcinosarcoma, so it is essential to perform histopathological and immunohistochemical analysis on biopsy specimens or resected tissue to ensure a correct diagnosis. A 72-year-old woman was transferred to our Department from another hospital with a diagnosis of a bleeding tumor localized on the lesser gastric curve, infiltrating the left hepatic lobe. The mass was treated as a gastric malignant mesenchymal neoplasia (gastro-intestinal stromal tumor versus sarcoma) infiltrating the liver. Owing to the bleeding, no further invasive examinations, such as fine needle aspiration biopsy, were planned. Furthermore, no neoadjuvant chemotherapy could be administered before surgery due to persistent anaemia. The scheduled surgical procedure was an atypical gastric resection with “en bloc” hepatic resection. This operation included upper polar and lesser curve resection, with tubulization of the stomach along the greater curve, as well as left lateral hepatic sectionectomy. Histopathological examination and immunohistochemical staining confirmed the diagnosis of gastric carcinosarcoma. This is first report of gastric carcinosarcoma with local liver infiltration, treated with surgical resection.
Nutritional potential of anti-anemic drinks based on Manihot esculenta L. or Graptophyllum pictum L. leaf extracts consumed in Yaoundé Cameroon
Authors:   1Laboratory for Food Sciences and Metaboism, University of Yaoundé I, Yaoundé, Cameroon,   2Department of Food Sciences and Nutrition, National School of Agro-Industrial Sciences, University of Ngaoundéré, Cameroon
Published: May 2021

Anemia is a global public health problem. In Cameroon, the most vulnerable to anemia are children under 5 years of age (60%) and pregnant women (40%). To reduce prevalence of anemia, several approaches have been adopted, including promoting the production and consumption of iron-rich foods/products. The objective of this work was to study the nutritional potential of anti-anemic drinks based on extracts from the leaves of either Manihot esculenta or Graptophyllum pictum consumed by the populations of the city of Yaoundé in Cameroon. Macronutrient contents were determined using the standard A.O.A.C. methods, while mineral contents were analyzed using the atomic absorption spectrophotometry. Bioactive compounds such as total polyphenols, flavonoids, and saponins were analyzed. Vitamin C was determined by the 2,6 dichlorophenol indophenol spectrophotometric method (DCPIP) and the contents of anti-nutrients (tannins, phytates, oxalates, saponins, hydrocyanic acid) quantified using standard methods. The results of these analyses show that the mean protein contents in the studied anti-anemic drinks ranged from 0.64 ± 0.08 g/100 mL to 1.84 ± 0.02 g/100 mL (M. esculenta drink); and 0.25 ± 0.01 g/100 mL (G. pictum drink). Sugar contents ranged from 0.30 ± 0.02 g/100 mL to 0.45 ± 0.01 g/100 mL (M. esculenta drink), and 0.29 ± 0.01 g/100 mL (G. pictum drink). As concerns iron contents, and vitamin C contents were inversely proportional across M. esculenta drinks containing 25% milk (2.29 ± 0.15 mg/100 mL iron; 57.9 ± 0.2 mg/100mL vit C) through 50% milk (1.70 ± 0.03 mg/100 mL iron; 147.19 ± 16.05 mg/100 mL vit C) to 75% milk (1.01 ± 0.11 mg/100 mL iron; 221.1 ± 16.96 mg/100 mL vit C). Likewise, iron and vit C levels in the G. pictum drink were 0.18 ± 0.01 mg/100 mL and 999.1 ± 41.2 mg/100 mL respectively. In general, although some anti-nutrients were detected in the studied anti-anemic beverages, the levels were not significant to pose harm. The principal component analysis revealed that the M. esculenta drink containing 75% milk was relatively the most nutritious of all the studied drinks viewing its contents in Vitamin C, protein and soluble sugars, thus, facilitating intestinal absorption of non-heme iron. Similarly, the G. pictum drink may require optimization of preparation method. Finally, the need for iron-bioavailability studies based on these anti-anemic drinks cannot be over emphasized.
Social Media, Physical and Mental Health During a COVID-19 Lockdown
Authors:   1University of Miami/Miller School of Medicine 2Fielding Graduate University
Published: May 2021

Social media including texting, internet use, and Facebook time have differential effects but those have not been studied during the social isolation of lockdowns when they might be more prevalent. In this Survey Monkey study, as many as 98% of 260 respondents reported texting, 100% using the internet, and 91% being on Facebook. The percentiles for those using the different media “a lot” were 45%, 77% and 42% respectively. Correlation analyses suggested that texting and internet use were positively related to Connecting Scale scores. However, internet use was also positively related to scores on Stress, Anxiety and Depression Scales and Facebook use was positively related to not only scores on Stress, Anxiety and Depression Scales but also to scores on Fatigue, Sleep Disturbance and PTSD scales. ANOVAS based on comparisons between groups reporting no to moderate use versus “a lot” of use were confirmatory of the correlation analyses. These results are limited by their being self-reported data from a non-representative, cross-sectional sample. Nonetheless, they highlight the positive and negative effects of different social media during a COVID-19 lockdown.
Students Pay the Price: Doctoral Candidates are Targeted by Contract Cheating Websites
Authors: Kelly Andrew , J Stevenson Kylie
Published: May 2021

Aim/Purpose: This paper analyses the textual features of contract cheating websites that offer thesis writing services for doctoral students and considers implications for practice.

Background: Contract cheating is an increasing challenge for higher education institutions, governments and societies worldwide. However, relatively little is known about the prevalence of online thesis writing services and the ways in which these companies attract doctoral students as customers.

Methodology: This study has a three-step textual analysis methodological approach: firstly, identifying contract cheating websites that target doctoral students; secondly, applying a top-down thematic approach to the literature to identify potential vulnerabilities; and, thirdly, using these themes in a textual analysis to interrogate the language used on these websites.

Contribution: Much of the current research into contract cheating has focused on coursework students. This study builds on the small sub-field of scholarship that has investigated contract cheating in a research writing context, and in contradistinction to previous studies, analyses the persuasive language features used by online contract cheating websites in the context of commonly reported doctoral student challenges. This is a novel approach not yet explored in the literature.

Findings: The analysis reveals that contract cheating websites include specific language to appeal to doctoral students’ vulnerabilities across four common themes: ‘balancing work and personal life’, ‘the complexity of doctoral academic writing’, ‘self-efficacy’ and ‘academic career progression’.

Recommendations for Practitioners: The themes present in this study highlight the critical role thesis supervisors can play in supporting doctoral students’ thesis writing progression, as well as the value of peer learning groups in building self-efficacy. The limited research literature into contract cheating in a doctoral context also suggests a need for increased training and awareness-raising programs for supervisors, thesis examiners and new graduate students.

Recommendation for Researchers: Future studies that further investigate the prevalence of these themes across a broader scope of websites and countries will provide greater insights into the extent to which these websites are a global threat to vulnerable doctoral students.

Impact on Society: The paper provides a foundation for researchers and graduate schools to raise greater awareness of contract cheating amongst doctoral students and, in so doing, combats the reputational risks it can have on universities and the potential safety risks for the general public.

Future Research: Semi-structured interviews and focus groups with doctoral students and supervisors that explore their awareness of contract cheating for thesis writing and their ability to identify research writing that has been completed by a third-party.
A Teoria dos Campos de Bourdieu e a Educação em Ciências: Possíveis Articulações e Apropriações
Authors: Massi Luciana , Agostini Gabriela , Nascimento Matheus Monteiro
Published: May 2021

Visando contribuir para o entendimento da pesquisa em Educação em Ciências a partir da sociologia da ciência, o objetivo deste artigo foi explorar e elucidar a teoria dos campos, formulada por Pierre Bourdieu, nos objetos de estudo dessa área. Este trabalho teórico foi estruturado em três momentos, articulados ao longo de todo o texto: uma síntese das leis gerais e invariantes dos campos; a elaboração de uma analogia entre o conceito de campo bourdiano e o campo para a Física; uma discussão da apropriação da teoria dos campos em pesquisas da Educação em Ciências que a mobilizam. Discutiu-se o campo como espaço social, os habitus dos agentes, as posições no campo, as disputas e os interesses, a distribuição de capital específico, os limites, as fronteiras e a autonomia do campo. Defendeu-se interpretações desse difícil conceito bourdiano, visando, por exemplo, delimitar o campo e seus agentes, por meio da apropriação em pesquisas da área. Assim, avançou-se no entendimento teórico em diálogo com a área, explicitando as articulações possíveis e as efetivadas entre a Educação em Ciências e a Sociologia da Ciência bourdiana.
Peculiarities of lipid peroxidation processes in the body of cats with urinary tract diseases and their correction with commercial feeds
Authors: Vorontsova Olga Andreevna , Pudovkin Nikolay Alexandrovich , Salautin Vladimir Vasilievich , Klyukin Sergey Dmitrievich
Published: May 2021

The article presents the results of studies on the effect of commercial food on the processes of free radical oxidation of lipids in the body of cats with urinary tract pathology. It has been found that the concentration of diene conjugates in the blood serum of sick animals increases significantly by 15.1 - 36.7% relative to healthy ones. The MDA content in the blood serum of healthy animals was 6.05 ± 0.28 nmol / g. In animals with urolithiasis, this indicator increased by about 2 times. When feeding with commercial food and homemade food, LPO processes normalize, which is most pronounced on the 21st day. The average activity of catalase in the blood serum of sick animals was increased from 30.6% to 40.2% relative to healthy ones (15.15 ± 0.61 ?mol / ml). After feeding with therapeutic and prophylactic fodders, by the 7th day, the catalase activity did not significantly decrease compared to the initial level, but remained higher than in control animals by 19.6% - 37.1%. On the 14th day, the catalase activity did not change significantly compared with the 7th day and was higher than the control values by 21.5% - 27.5%.
Efficiency of new methods of cultivation of various varieties and hybrids of table beet in the conditions of irrigation in the Astrakhan region
Authors: Bondarenko Anastasia Nikolaevna , Kostyrenko Oksana Vladimirovna
Published: May 2021

Vegetable roots, including table beets, are valuable, irreplaceable components of a rational human diet. A positive feature of this crop is the good keeping quality of its root crops, which ensures year-round consumption of fresh products. During 2019-2020, research on cultivating varieties and hybrids of table beet was conducted at the experimental irrigated area of the Federal state budgetary INSTITUTION "PAFSC RAS". As a result of the field experience, a high-yielding variety of Ethiopian Was identified, which more economically spent water on the formation of marketable products. The lowest water consumption coefficient of 73.7 m3 / t was obtained in the variant using leaf treatment with Aminovit. The maximum biological yield of 83.3 t / ha for this variety was obtained on the variant with leaf treatment with complex mineral fertilizer Aminovit. With these indicators, the increase to the control was +19.9 t / ha. The commercial yield was 61.3 t / ha, while the percentage of marketability was 74.
Manganese metabolism in the body of lactating fat-tailed ewes and the rate of need for it
Authors: Gayirbegov Djunaidi  Sharamazanovich , Arilov Anatoliy Nimeevich , Mandjiev Dmitry  Borisovich , Gibalkina Nadezhda Ivanovna , Groza Elena Viktorovna
Published: May 2021

We studied the exchange of manganese in the body of lactating ewes of the Kalmyk breed. It was found  out  that during lactation, the intensity of metabolism of this element in the body of ewes of the meat-feeding direction of productivity significantly increases. The factorial method, taking into account endogenous losses, determined the daily requirement of fat-tailed ewes in manganese.
Justification of the diameter of the nozzle holes of the hollow frame for flushing the fil-ter rotor of the centrifuge
Authors: Bogdanov Andrey Vladimirovich , Popova Svetlana Yurevna , Ptashkina-Girina Olga Stepanovna , Kuchugulova Elvira Marselevna
Published: May 2021

The article presents a theoretical justification for the diameter of the nozzle holes of a hollow frame installed inside the filter rotor of a centrifuge. A theoretical dependence on the definition of this diameter is obtained. When determining the diameter, it was found that it is necessary to take into account the number of nozzles located on the hollow frame. This will ensure uniform and high-quality flushing of the filter rotor of the centrifuge.
Calculation justification of isolation of boron and sodium cations from melted working and heating medium during strengthening of repaired parts
Authors: Builov Valeriy Nikolaevich , Rudik Phelix  Yakovlevich , Lyulyakov Ivan Viktorovich
Published: May 2021

The necessity of developing a mathematical model for theoretical and computational verification of the applicability of the working and heating medium for hardening the restored parts has been substantiated. Formulas and systems of equations representing such a mathematical model are proposed. The results of calculations using these formulas made it possible to evaluate and establish the parameters of the preferred mode when strengthening the restored working organs of tillage aggregates.
Disposal of agricultural machinery and equipment as a socio-economic problem of the agricultural industrial complex of Russia
Authors: Ignatov Vladimir Ilyich , Kataev Yuriy Vladimirovich , Gerasimov Valery Sergeevich , Andreeva Darya Vladimirovna
Published: May 2021

The work provides information on the disposal of equipment in the agro-industrial complex of Russia, gives a brief analytical review of foreign sources on the state of the issue in question in other economically developed countries. The necessity of creating a resource-saving ecological-oriented system "Agricultural recycling" in the AIC of Russia is explained. A brief economic justification for the formation of this system and the calculation of the necessary financial resources are given. It also provides information on the direct executors of the functioning of the "Agricultural recycling" system in the person of manufacturers, specialized enterprises of the engineering sector of the AIC, research institutes and other interested enterprises and organizations. Proposals are given on the step-by-step implementation of the project to create the “Agricultural Recycling” system in the next 2-3 years.
Issues of development of public administration in modern Russia
Authors: Fotina Lyudmila
Published: May 2021

The collection contains scholarly articles by young researchers and master's students of the Institute of State Service and Human Resources of the Russian Presidential Academy of National Economy and Public Administration, school of Public and Municipal Administration specializing in the field of State Service and Human Resources Management. The publication is intended for specialists who work in the field of development of public and municipal administration in the Russian Federation.
Manisa Ulu Cami’nin Örtü Ve Duvar Sisteminde Ortaya Çıkarılan Testiler
Authors: GÖK İPEKÇİOĞLU Sevinç
Published: May 2021

2019 yılında restorasyon çalışmalarının başladığı Manisa Ulu Cami Külliyesi’nde bir çok yenilikle karşılaşılmıştır. Özellikle yapının mimari yapısında kullanılan testiler; gerek kullanıldıkları alan açısından, gerekse nitelikleri yönünden önemli veriler sunmaktadırlar. Caminin örtü sisteminde ve harim kuzey duvarında bulunan testiler, yapı elemanı olarak kullanılmalarının yanı sıra form ve süsleme özellikleriyle dikkat çeker. Caminin avlu revaklarından kuzey doğudakilerin örtü sistemi, problemler nedeniyle açılmış ve buradaki tonozların arasında yan yana sıralanmış testiler olduğu tespit edilmiştir. Erken dönemlerden itibaren örneklerini görmeye başladığımız örtü sisteminde testi/künk/amfora kullanımının amacı, yapıların üzerindeki ağırlığı hafifletmektir. Caminin harim kuzey duvarında da testiler bulunmaktadır. Bütün duvar yüzeyine, düzensiz bir şekilde yerleştirilen testilerin, kemer alınlıklarında yoğunlaştığı ve sıralı olarak düzenlendiği görülmektedir. Yerleştiriliş şekli ve düzeni bu testilerin akustik/rezonans amaçlı kullanılmadığını, üst örtüde olduğu gibi duvarın yükünü hafifletmek için uygulandığını göstermektedir. Yapının örtü sisteminde kullanılan testilerin tamamı kırmızı renkli bünyeli ve sırsızdır. Genel olarak yumurta biçimli gövdeli, tek, çift kulplu ve kulpsuz formlara sahip olan örneklerin bir kısmı süzgeçlidir. Günlük hayatta kullanılmak için üretilmiş mutfak kaplarından oluşan testilerin tamamı defoludur. Ulu Cami, kitabesine göre Saruhan Beylerinden İshak Çelebi tarafından 1366-67 tarihinde yaptırılmıştır. Mimarın ise Emet bin Osman olduğu kabul edilir. Yaklaşık aynı yıllarda inşa edilen Manisa Gülgün Hatun Hamamı’nda da Ulu Cami’de olduğu gibi örtü sisteminde testi kullanılmıştır. Özellikle üst örtü çözümlemeleri, örtü sistemindeki ağırlığı hafifletmek için testi kullanması, tercih edilen testilerin defolu örnekler olması, bu yapıların aynı mimar tarafından inşa edildiğini düşündürmektedir.
Volatility in the Raw Materials Market and Risk Mitigation Methods
Authors: KRÓLIKOWSKA Elżbieta , SIERPIŃSKA-SAWICZ Agata , KRÓLIKOWSKI Michał
Published: May 2021

Companies in the raw materials market operate in a volatile and unstable market. Business downturns exert a particular effecton the level of cash flows and generate insolvency risk among companies, all the more so when crises are driven by objective circumstancesbeyond human control. Being well-versed with these risks, a company should take steps to mitigate the risk of rawmaterials price volatility affecting the planned results in at least the medium term. The subject of this analysis is to point out theinterdependencies between the basic economic categories when it comes to how the steel market functions and the risks stemmingfrom the volatility of the raw materials market. Moreover, it portrays the main financial instruments that can be used to mitigatethe consequences of the risk of movement of raw materials prices.
Developments of Professional Learning Communities and Challenges for Principals in Chinese Urban Middle Schools
Authors: Jin Rui , Zhu Tao
Published: May 2021

Professional learning communities (PLCs) have seen a rapid spread all around the world over the past 30 years. Since then it has been proved that they can improve teaching quality and thereby the achievement of students, and so PLCs have attracted increasing attention especially from education systems. In China, PLCs have been developed vigorously within schools since the implementation of the ‘New Curriculum Reform’ in 2000. However, the west has paid scant attention to and were not familiar with them since most research in this field in China was published in Chinese.Furthermore, PLCs are influenced by contextual and cultural factors, and therefore PLCs in Chinese education systems are different from those in Anglo-American settings due to long-standing cultural differences, which require consideration. Therefore, this research will investigate the PLCs in China that may be of interest. Many recent studies have shown that, although PLCs have made significant progress in Chinese urban middle schools through the enthusiastic efforts of educators and scholars, there are still several barriers. The primary purpose of this research is to review the development of PLCs and additionally to analyse the challenges faced by the principals.
Based on the Art Model of “3A” in Experimental Base, Research and Practice on the Cultivation of Innovation Ability of Landscape Art Curriculum
Authors: Yao Jun , Ye Zinan , Gao Yingying
Published: May 2021

The art course of garden design specialty is an important basic course. In view of the problems existing in the teaching of art course, practical training in practice base is an important way to improve the students’ professional theoretical knowledge and innovative practical ability. In addition, the art curriculum reform and practical research are carried out with the aim of Aesthetic+Ability+Apply.
Data Analysis from Two-choice Decision Tasks in Visual Information Processing
Authors: Kraleva Radoslava , Kralev Velin , Koprinkova-Hristova Petia
Published: May 2021

Data analysis are important tasks in research. The present study focuses on the analysis of data sets from human eye movement experiments. The results of the experiments were analyzed according to two criteria â€“ gender and age of the participants. The participants were divided into 3 groups, respectively group 1: between 20 and 35 years, group 2: between 36 and 55 years and group 3: between 56 and 85 years. The results showed that 75% of the two-choice decision tasks were solved correctly. This trend was maintained among the participants from group 1 â€“ respectively 75.4%. The participants from group 2 gave more correct answers â€“ respectively 82.2%, but the participants from group 3 gave fewer correct answers â€“ respectively 70.2%. The average value of the response time indicator (of all participants) was 1455 ms. The response time of the participants from groups 1 and 2 was shorter than the average (respectively with 483 ms and 235 ms). The response time of the participants from group 3 was longer than the average (respectively with 626 ms).
Real-time Triplet Loss Embedding Face Recognition for Authentication Student Attendance Records System Framework
Authors: Pranoto Hady , Kusumawardani Oktaria
Published: May 2021

The number of times students attend lectures has been identified as one of many success factors in the learning process in many studies. We proposed a framework of the student attendance system by using face recognition as authentication. Triplet loss embedding in FaceNet is suitable for face recognition systems because the architecture has high accuracy, quite lightweight, and easy to implement in the real-time face recognition system. In our research, triplet loss embedding shows good performance in terms of the ability to recognize faces. It can also be used for real-time face recognition for the authentication process in the attendance recording system that uses RFID. In our study, the performance for face recognition using k-NN and SVM classification methods achieved results of 96.2 +/- 0.1% and 95.2 +/- 0.1% accordingly. Attendance recording systems using face recognition as an authentication process will increase student attendance in lectures. The system should be difficult to be faked; the system will validate the user or student using RFID cards using facial biometric marks. Finally, students will always be present in lectures, which in turn will improve the quality of the existing education process. The outcome can be changed in the future by using a high-resolution camera. A face recognition system with facial expression recognition can be added to improve the authentication process. For better results, users are required to perform an expression instructed by face recognition using a database and the YOLO process.