bluuebunny/crossref_metadata_2025 huggingface dataset:
Desenvolvimento de uma bancada didática de um ciclo de refrigeração por compressão de vapor
Authors: Carlesso Cristiano Lucas , Brum Dutra Elienai Josias , Souza Rosa Josimar
Published: December 2020

Atualmente, muitas atividades da vida humana dependem do uso de equipamentos que operam com base nos princípios da refrigeração. Em certos casos, pode-se até dize que a própria sobrevivência humana depende de um processo de refrigeração. Assim, torna-se cada vez mais relevante, que os profissionais atuantes nessa área possuam formação para compreensão, manutenção e desenvolvimento desse tipo de sistema. O estudo apresentado neste trabalho surgiu da necessidade de estudar experimentalmente conceitos que envolvem transferência de calor, ciclos de refrigeração e termodinâmica. Nesse contexto, o objetivo geral foi construir e avaliar uma bancada de refrigeração por compressão de vapor, procurando criar experiências as quais professores possam utilizar em aulas de disciplinas envolvidas. Incialmente, a construção da bancada foi realizada, usando dispositivos comerciais, observando a premissa de um equipamento compacto. Após a construção, duas condições de ensaios foram realizadas: na primeira, a velocidade do ar no evaporador e no condensador foi 1,80 m/s; na segunda, a velocidade do ar no condensador foi 1,94 m/s enquanto, no evaporador foi 0,71 m/s. Como resultado dessa alteração paramétrica, houve queda no valor do coeficiente de performance do ciclo. De forma geral, a bancada mostrou-se útil e adequada para demonstrar, de forma didática, o funcionamento do ciclo de refrigeração por compressão de vapor.

Palavras-chave: Didática. Termodinâmica. Refrigeração.
Study of reaction conditions and substrate for the development of flexible antennas by the electroless method
Authors: Cambruzzi Dalló Luíse , Lamberty Paola , Mezzeti Gabriela , Krause Santin Cristiane , Fernandes Iara Janaína , Peter Celso
Published: December 2020

The method of surface coating, known as electroless, is based on the deposition of metals without the presence of an electric current, being an alternative for the deposition of metals using direct printing, thus avoiding the need to use photoresist to standardize the metal layer. The present work aims to study substrates, based on polyethylene terephthalate (PET), and their covering using the electroless technique. In this study, factors such as plasma, temperature and immersion time were investigated, when covering the surface, using a silver nitrate solution and a copper bath. The results showed that these factors interfere in obtaining a homogeneous coating with efficient conductivity. In addition, it is concluded that the electroless technique is a low-cost, fast and efficient method for coating flexible surfaces with metallic materials, being, therefore, very promising.

Keywords: Electroless. Antenna. RFID.
In vitro risk assessment of Padina pavonica (Linnaeus) (Brown algae)
Authors: Güner Adem
Published: December 2020

Padina pavonica (Linnaeus) Thivy 1960 is a brown algae that is antioxidant, antimicrobial, and anticancer effects and is generally used in soup, salad, and other dishes. However, no studies have been reported on safe consumption in humans to date. For this purpose, this study was conducted to determine the cytotoxic and genotoxic effects of P. pavonica on lymphocytes cultured from human blood. The water extract of P. pavonica was added into culture tubes at various concentrations (0.5-1000 μg/mL). Cytotoxic effects were determined by MTT assay. Antioxidant/oxidant status was evaluated by total antioxidant capacity (TAC) and total oxidative status (TOS) assays. Genotoxic effects were investigated by sister chromatid exchanges and micronucleus assays. Our results showed that P. pavonica had no genotoxic effects, even at higher concentrations. 1000 μg/mL concentration of P. pavonica caused an increase (P<0.05) TOS levels while significantly reducing cell viability. However, low concentrations (50 and 100 μg/mL) significantly increased (P<0.05) TAC levels. In conclusion, P. pavonica can be safely consumed with its non-genotoxic and antioxidant properties in a manner dose-dependent.
ЗНАЧЕНИЕ ГРАМПОЛОЖИТЕЛЬНЫХ КОККОВ В РАЗВИТИИ ДИСБАКТЕРИОЗА КИШЕЧНИКА
Authors: Dusmagambetova A. , Dusmagambetov M. , Zhusupov B.
Published: December 2020

Известно, что в кишечнике здорового человека обитает более 300 видов различных микроорганизмов: бифидобактерии, лактобактерии, другие грамотрицательные палочки и грамположительные кокки. Основными представителями грамположительных кокков в нормоценозе кишечника являются различные виды стафилококков, в т.ч. Sta.aureus, и энтерококков. Кроме того, имеются «бифидус факторы» которые способствуют заселению кишечника отдельными видами микроорганизмов в определенных количествах [1, 2].

Дисбактериоз кишечника - это клиниколабораторный синдром, который возникает при ряде заболеваний и клинических ситуаций и характеризуется, в первую очередь, изменением качественного и/или количественного состава нормальной микрофлоры, транслокацией различных микроорганизмов из кишечника в несвойственные биотопы, а также симптомами поражения кишечника [3, 4, 5, 6]. 

Изменение качественно-количественного состава микрофлоры кишечника приводит к изменению состава внутренней среды кишки, нарушая пищеварительные процессы, что оказывает повреждающее действие на кишечную стенку. Кроме того, микрофлора при дисбиозе не способна выполнять в полном объеме физиологические функции, присущие нормальной микрофлоре, и прежде всего, противостоять колонизации кишечника экзогенными патогенными микроорганизмами [7, 8]. 

Нарушение нормальной микрофлоры кишечника может быть результатом воздействия различных факторов: перенесенная острая кишечная инфекция, прием антибактериальных препаратов, воспалительные заболевания пищеварительного тракта, стрессы, нерациональное питание и терапия, эндокринные нарушения, ионизирующая радиация [9, 10, 11]. 

Таким образом, дисбактериоз кишечника нельзя считать безобидным состоянием: он требует к себе пристального внимания.
THE MAIN FEATURES OF EVIDENCE-BASED MEDICINE IN THE TREATMENT AND REHABILITATION OF PATIENTS IN MAXILLOFACIAL SURGERY
Authors: Тemirbolatova S. , Shogenov A.
Published: December 2020

The paper considers the features of modern evidence-based medicine, its role and place in modern clinical practice, the role of assessing the effectiveness of drug therapy, the principles of conducting clinical trials of drugs. The results obtained will find wide application in the choice of methods of treatment and rehabilitation of patients in the Department of Maxillofacial Surgery, which will contribute to the development of this branch of medicine.

Introduced modern scientific data into practice, which includes 5 key skills:

study of questions and problems, with a detailed detailed answer to them, to conclude a method of treating a patient, a conservative approach or the degree of effectiveness of surgery;

a detailed analysis of electronic literature of the corresponding type and level of evidence;

selection of research methods and assessment of evidence of their necessity;

the ability to implement the final results, and use them in the process of treating patients.
ПРОЕКТИРОВАНИЕ КОТЕЛЬНЫХ УСТАНОВОК (ПРОШЛОЕ, НАСТОЯЩЕЕ И ВОЗМОЖНОЕ БУДУЩЕЕ)
Authors: Dyakonov E. , Mikhailov V. , Usikov N.
Published: December 2020

В работе рассмотрены основные этапы развития котельных установок и методов их проектирования, влияние общенаучных сведений по термодинамике, физике и химии на конструктивные характеристики котельных установок. Показано, что при проектировании должны учитываться свойства сжигаемого топлива, условия работы котлов. Описано развитие нормативных методов проектирования. Дана краткая характеристика современных методов проектирования с использованием специализированных программных средств и высокопроизводительных вычислительных машин.

Намечены пути дальнейшего развития методов проектирования.
Aastaanas of Magicians: A Ray of Hope for the Marginalised Community of Rawalpindi
Authors: Zeeshan Mahwish , Sultana Aneela , Chaudhry Abid Ghafoor
Published: December 2020

People continue to believe in the efficacy of magic in the era of science and technology. Mythology pertaining to curative aspect of magic which is believed to solve the social, economic and medical problems of the people. Initially, a socio-economic survey of the households was conducted in Rawalpindi at Dhok Ratta and Dhok Khabba, which tapped 796 households. Later, 44 people who confessed using magic were interviewed with the help of an interview guide and participant observation at the aastaanas of the aamils. Mostly people who believed in the magical practices were inflicted with health, domestic, social and economic problems and sought magical cure as a last resort. The efficacy of magic is determined by socio-economic status, sex, marital status and education of the people rather than their belief in religion and fatalism.
Stereotactic radiosurgery with versus without prior Onyx embolization for brain arteriovenous malformations
Authors: Chen Ching-Jen , Ding Dale , Lee Cheng-Chia , Kearns Kathryn N. , Pomeraniec I. Jonathan , Cifarelli Christopher P. , Arsanious David E. , Liscak Roman , Hanuska Jaromir , Williams Brian J. , Yusuf Mehran B. , Woo Shiao Y. , Ironside Natasha , Burke Rebecca M. , Warnick Ronald E. , Trifiletti Daniel M. , Mathieu David , Mureb Monica , Benjamin Carolina , Kondziolka Douglas , Feliciano Caleb E. , Rodriguez-Mercado Rafael , Cockroft Kevin M. , Simon Scott , Mackley Heath B. , Zammar Samer G. , Patel Neel T. , Padmanaban Varun , Beatson Nathan , Saylany Anissa , Lee John Y. K. , Sheehan Jason P. , _ _
Published: December 2020

OBJECTIVE

Investigations of the combined effects of neoadjuvant Onyx embolization and stereotactic radiosurgery (SRS) on brain arteriovenous malformations (AVMs) have not accounted for initial angioarchitectural features prior to neuroendovascular intervention. The aim of this retrospective, multicenter matched cohort study is to compare the outcomes of SRS with versus without upfront Onyx embolization for AVMs using de novo characteristics of the preembolized nidus.

METHODS

The International Radiosurgery Research Foundation AVM databases from 1987 to 2018 were retrospectively reviewed. Patients were categorized based on AVM treatment approach into Onyx embolization (OE) and SRS (OE+SRS) or SRS alone (SRS-only) cohorts and then propensity score matched in a 1:1 ratio. The primary outcome was AVM obliteration. Secondary outcomes were post-SRS hemorrhage, all-cause mortality, radiological and symptomatic radiation-induced changes (RICs), and cyst formation. Comparisons were analyzed using crude rates and cumulative probabilities adjusted for competing risk of death.

RESULTS

The matched OE+SRS and SRS-only cohorts each comprised 53 patients. Crude rates (37.7% vs 47.2% for the OE+SRS vs SRS-only cohorts, respectively; OR 0.679, p = 0.327) and cumulative probabilities at 3, 4, 5, and 6 years (33.7%, 44.1%, 57.5%, and 65.7% for the OE+SRS cohort vs 34.8%, 45.5%, 59.0%, and 67.1% for the SRS-only cohort, respectively; subhazard ratio 0.961, p = 0.896) of AVM obliteration were similar between the matched cohorts. The secondary outcomes of the matched cohorts were also similar. Asymptomatic and symptomatic embolization-related complication rates in the matched OE+SRS cohort were 18.9% and 9.4%, respectively.

CONCLUSIONS

Pre-SRS AVM embolization with Onyx does not appear to negatively influence outcomes after SRS. These analyses, based on de novo nidal characteristics, thereby refute previous studies that found detrimental effects of Onyx embolization on SRS-induced AVM obliteration. However, given the risks incurred by nidal embolization using Onyx, this neoadjuvant intervention should be used judiciously in multimodal treatment strategies involving SRS for appropriately selected large-volume or angioarchitecturally high-risk AVMs.
High-grade gliomas in children and adolescents: is there a role for reoperation?
Authors: Silva da Costa Marcos Devanir , Camargo Nicole Cavalari , Dastoli Patricia Alessandra , Nicácio Jardel Mendonça , Benevides Silva Frederico Adolfo , Sucharski Figueiredo Maria Luisa , Chen Michael Jenwei , Cappellano Andrea Maria , Saba da Silva Nasjla , Cavalheiro Sergio
Published: December 2020

OBJECTIVE

Tumors of the CNS are the main causes of childhood cancer and have an incidence that exceeds that of leukemia. In addition, they are the leading causes of cancer-related death in childhood. High-grade gliomas account for 11% of such neoplasms and are characterized by aggressive clinical behavior and high morbidity and mortality. There is a lack of studies focusing on the factors that can prolong survival in these patients or guide therapeutic interventions. The authors aimed to investigate the factors related to longer survival durations, with a focus on reoperation for gross-total resection (GTR).

METHODS

In this retrospective cohort study, the authors analyzed 78 patients diagnosed with high-grade gliomas occurring across all CNS locations except diffuse intrinsic pontine gliomas. Patients 0 to < 19 years of age were followed up at the Pediatric Oncology Institute. Overall survival (OS) and progression-free survival (PFS) were analyzed in the context of various prognostic factors, such as age, sex, histology, extent of tumor resection, reoperation for GTR, adjuvant treatment, and treatment initiation from 2010 onward.

RESULTS

With a mean age at diagnosis of 8.7 years, 50% of the patients were female and approximately 39% underwent GTR at some point, which was already achieved in approximately 46% of them in the first surgery. The median OS was 17 months, and PFS was 10 months. In terms of median OS, the authors found no significant difference between those with reoperation for GTR and patients without GTR during treatment. Significant differences were observed in the OS in terms of the extent of resection in the first surgery, age, sex, Ki-67 expression, adjuvant treatment, and treatment initiation from 2010 onward. Furthermore, the PFS values significantly differed between those with GTR in the first surgery and Ki-67 expression ≥ 50%.

CONCLUSIONS

This study demonstrates the importance of GTR for these neoplasms, highlights the role of surgeons in its achievement in the first attempt, and questions the role of reoperation for this purpose. Finally, this study further supports the use of combined adjuvant treatment for the improvement of OS and PFS.
Los juegos olímpicos, programa para un análisis. "el espectáculo más difundido por la televisión en el mundo"
Authors: Ramírez Alarcón Luz Stella
Published: December 2020

El artículo presenta una reseña crítica sobre el texto "LOS JUEGOS OLÍMPICOS, PROGRAMA PARA UN ANÁLISIS - "El espectáculo más difundido por la televisión en el mundo", uno de los anexos del libro sobre la televisión, del francés Pierre Bourdieu. Por las características de reseña crítica permite la interpelación al autor del libro, a partir de la reflexión que se realiza sobre los Juegos Olímpicos y tal análisis se forja a la luz del autor, quien expone su planteamiento desde la perspectiva sociológica. Adicionalmente, se establece la relación entre algunas de las definiciones realizadas por el autor y las de otros, quienes abordan el deporte y permite enfrentar, de forma provocadora, la intención de los medios de comunicación masivos y la manera como éstos mercadean el deporte, como una suerte de producto comercial, para ganar audiencia masiva; todo esto en el marco del desarrollo de los Juegos Olímpicos.
Los esteroides anabolizantes androgénicos, riesgos y consecuencias
Authors: Avella Rafael Ernesto , Medellín Juan Pablo
Published: December 2020

El dopaje ha causado mucho daño en el mundo del deporte y de la actividad física, rechazado por deportistas, por entrenadores y por directivos, siendo perseguido, con el fin de ser erradicado de las justas deportivas, donde su empleo es causado por la presión de innumerables factores, que se presentan en el alto rendimiento; sin embargo, se desconoce el impacto y la popularidad que muchas de estas sustancias tienen en la gente del común; quienes buscan una perfección física, desconociendo las alteraciones funcionales, fisiológicas, bioquímicas y psicológicas que, en la mayoría de los casos, son irreversibles, con el único objetivo de encajar en los patrones de belleza, que impone la sociedad. Este trabajo recopila evidencia científica sobre los efectos de la ingesta de esteroides anabólicos androgénicos en el organismo, para generar conciencia en los potenciales usuarios y crear políticas de prevención, frente al consumo indiscriminado de dichas sustancias.
Prácticas Restaurativas en Instituciones de Reeducación
Authors: Gelber Yecid Roa-Pinto
Published: December 2020

Las prácticas restaurativas en instituciones de reeducación constituyen una manera más de enriquecer elproceso pedagógico reeducativo y complementarlo desde la óptica de la atención restaurativa. Para lograrlo,es necesario que los pedagogos se acerquen y comprendan un posible concepto de justicia con enfoquerestaurativo en el contexto de los adolescentes infractores de la ley penal, así como la manera de acompañar,fortalecer y consolidar estrategias que tiendan a empoderar y reconocer en el joven la responsabilidadque tiene de cambiar por sí mismo su estilo de vida, aceptándose como parte activa de una familia yde una comunidad, garante de sus derechos y obligaciones. Esta investigación es de carácter cualitativo,de tipo etnográfico, los participantes fueron un grupo de pedagogos vinculados a una institución dereeducación y el objetivo fue la identificación del sentido de justicia y las prácticas restaurativas por mediode la descripción, categorización y análisis de las mismas. Se obtuvieron resultados significativos como ladescripción del sentido de justicia evidenciado en la institución, el eminente tinte humano que comportala justicia restaurativa, la identificación de 14 prácticas restaurativas, que giran en torno a tres dimensionesde aplicación tales como: la reparación del daño a sí mismo, a la familia y a la sociedad, de igual manera sedescriben otras estrategias que complementan dichas prácticas. El sistema de responsabilidad penal paraadolescentes se fortalece con la interacción y participación de los actores en la búsqueda mancomunada demecanismos duraderos y especializados que contribuyan a la efectividad de los procesos tanto reeducativoscomo restaurativos y con ellos al cambio y transformación de esta población vulnerable como se puedeevidenciar gracias a las prácticas restaurativas.
Cost-Benefit Analysis of Novel Access Modes: A Case Study in the San Francisco Bay Area
Authors: Rodier Caroline , Broaddus Andrea , Jaller Miguel , Song Jeffery , Bischoff Joschka , Zhang Yunwan
Published: December 2020

The first-mile, last-mile problem is a significant deterrent for potential transit riders, especially in suburban neighborhoods with low density. Transit agencies have typically sought to solve this problem by adding parking spaces near transit stations and adding stops to connect riders to fixed-route transit. However, these measures are often only short-term solutions. In the last few years, transit agencies have tested whether new mobility services, such as ridehailing, ridesharing, and microtransit, can offer fast, reliable connections to and from transit stations. However, there is limited research that evaluates the potential impacts of these projects. Concurrently, there is growing interest in the future of automated vehicles (AVs) and the potential of AVs to solve this first-mile problem by reducing the cost of providing these new mobility services to promote access to transit. This paper expands upon existing research to model the simulate the travel and revenue impacts of a fleet of automated vehicles that provide transit access services in the San Francisco Bay Area offered over a range of fares. The model simulates a fleet of AVs for first-mile transit access at different price points for three different service models (door-to-door ridehailing and ridesharing and meeting point ridesharing services). These service models include home-based drop-off and pick-up for single passenger service (e.g., Uber and Lyft), home-based drop-off and pick-up for multi-passenger service (e.g., microtransit), and meeting point multi-passenger service (e.g., Via).
Correlative Microscopy to Localize and Characterize Iron Deposition in Alzheimer’s Disease
Authors: Madsen Steven J. , DiGiacomo Phillip S. , Zeng Yitian , Goubran Maged , Chen Yuanxin , Rutt Brian K. , Born Donald , Vogel Hannes , Sinclair Robert , Zeineh Michael M.
Published: December 2020

Background:

Recent evidence suggests that the accumulation of iron, specifically ferrous Fe2+, may play a role in the development and progression of neurodegeneration in Alzheimer’s disease (AD) through the production of oxidative stress.

Objective:

To localize and characterize iron deposition and oxidation state in AD, we analyzed human hippocampal autopsy samples from four subjects with advanced AD that have been previously characterized with correlative MRI-histology.

Methods:

We perform scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electron energy loss spectroscopy (EELS) in the higher resolution transmission electron microscope on the surface and cross-sections of specific iron-rich regions of interest.

Results:

Specific previously analyzed regions were visualized using SEM and confirmed to be iron-rich deposits using EDS. Subsequent analysis using focused ion beam cross-sectioning and SEM characterized the iron deposition throughout the 3-D volumes, confirming the presence of iron throughout the deposits, and in two out of four specimens demonstrating colocalization with zinc. Analysis of traditional histology slides showed the analyzed deposits overlapped both with amyloid and tau deposition. Following higher resolution analysis of a single iron deposit using scanning transmission electron microscope (STEM), we demonstrated the potential of monochromated STEM-EELS to discern the relative oxidation state of iron within a deposit.

Conclusion:

These findings suggest that iron is present in the AD hippocampus and can be visualized and characterized using combined MRI and EM techniques. An altered relative oxidation state may suggest a direct link between iron and oxidative stress in AD. These methods thus could potentially measure an altered relative oxidation state that could suggest a direct link between iron and oxidative stress in AD. Furthermore, we have demonstrated the ability to analyze metal deposition alongside commonly used histological markers of AD pathology, paving the way for future insights into the molecular interactions between Aβ, tau, iron, and other putative metals, such as zinc.
The Vagal Autonomic Pathway of COVID-19 at the Crossroad of Alzheimer’s Disease and Aging: A Review of Knowledge
Authors: Rangon Claire-Marie , Krantic Slavica , Moyse Emmanuel , Fougère Bertrand
Published: December 2020

Coronavirus Disease 2019 (COVID-19) pandemic-triggered mortality is significantly higher in older than in younger populations worldwide. Alzheimer’s disease (AD) is related to aging and was recently reported to be among the major risk factors for COVID-19 mortality in older people. The symptomatology of COVID-19 indicates that lethal outcomes of infection rely on neurogenic mechanisms. The present review compiles the available knowledge pointing to the convergence of COVID-19 complications with the mechanisms of autonomic dysfunctions in AD and aging. The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is prone to neuroinvasion from the lung along the vagus nerve up to the brainstem autonomic nervous centers involved in the coupling of cardiovascular and respiratory rhythms. The brainstem autonomic network allows SARS-CoV-2 to trigger a neurogenic switch to hypertension and hypoventilation, which may act in synergy with aging- and AD-induced dysautonomias, along with an inflammatory “storm”. The lethal outcomes of COVID-19, like in AD and unhealthy aging, likely rely on a critical hypoactivity of the efferent vagus nerve cholinergic pathway, which is involved in lowering cardiovascular pressure and systemic inflammation tone. We further discuss the emerging evidence supporting the use of 1) the non-invasive stimulation of vagus nerve as an additional therapeutic approach for severe COVID-19, and 2) the demonstrated vagal tone index, i.e., heart rate variability, via smartphone-based applications as a non-serological low-cost diagnostic of COVID-19. These two well-known medical approaches are already available and now deserve large-scale testing on human cohorts in the context of both AD and COVID-19.
Dilemma in the foreign lands during COVID-19: An outlook of expat health care professionals with a take on a social perspective
Authors: Prabhu Namdeo , Issrani Rakhi
Published: December 2020

BACKGROUND: The World Health Organization (WHO) has declared novel coronavirus (COVID-19) infection a global pandemic due to the fast transmission of this disease worldwide. To prevent and slow the transmission of this contagious illness, the public health officials of many affected countries scrambled to introduce measures aimed at controlling its spread. As a result, unprecedented interventions/measures, including strict contact tracing, quarantine of entire towns/cities, closing of borders and travel restrictions, have been implemented by most of the affected countries including the Kingdom of Saudi Arabia. OBJECTIVES: The aim of this paper is to share health care professionals’ perspectives who are experiencing COVID19 firsthand in a foreign land. In addition, the role of the Saudi governance to combat the current situation is also discussed. DISCUSSION: Personal and previous experiences as related to Middle East respiratory syndrome coronavirus (MERS-CoV) by the authors has been compared to the current situation and how it affected our thoughts and management. A review of the evidence-based literature was conducted to investigate the demographics of the region; and to understand the awareness of the various tools that are available and how they were utilized in the present situation of pandemic. CONCLUSIONS: Saudi Arabia has been challenged during the pandemic as are other countries.
Seafarers’ well-being in the context of the COVID-19 pandemic: A qualitative study
Authors: Slišković Ana
Published: December 2020

BACKGROUND: The public health strategies for prevention of SARS-CoV-2 infection have included closing the national borders and cancelling international flights, which has severely affected free crew changes. This caused prolonged stay on board or at home for seafarers, who should be recognized as ‘key’ workers regarding their essential role in maintaining the flow of vital goods. OBJECTIVE: Using a general inductive approach, this qualitative study aims to describe how the COVID-19 pandemic reflects on seafarers’ well-being. The study focused on obtaining personal experiences from seafarers on board, and seafarers at home, relating to the current world pandemic. METHODS: A convenience sample consisting of 752 seafarers from the international seafarers’ population participated in an online study in spring 2020. The questionnaire used included questions relating to basic sociodemographic and work characteristics, and one open question which addressed seafarers’ personal experiences. The data obtained was analysed by thematic analysis. RESULTS: The emerged themes included mental, physical, social and economic well-being. Most of the answers of seafarers located on board related to threatened mental, physical and social well-being, while seafarers at home reported mostly on threats to their economic well-being. CONCLUSION: Seafarers’ well-being is seriously threatened by preventive measures relating to the COVID-19 pandemic. Results are discussed in relation to earlier findings in the area of occupational stress in seafaring. Overall, the data obtained portrays existing underlying occupational structures in the seafaring sector, which are rendered more visible due to the COVID-19 pandemic. In short, seafarers describe their reality as far away from the concept of ‘key’ or ‘essential’ workers.
A pilot study of radiomics signature based on biparametric MRI for preoperative prediction of extrathyroidal extension in papillary thyroid carcinoma
Authors: He Junlin , Zhang Heng , Wang Xian , Sun Zongqiong , Ge Yuxi , Wang Kang , Yu Chunjing , Deng Zhaohong , Feng Jianxin , Xu Xin , Hu Shudong
Published: December 2020

OBJECTIVE:

To investigate efficiency of radiomics signature to preoperatively predict histological features of aggressive extrathyroidal extension (ETE) in papillary thyroid carcinoma (PTC) with biparametric magnetic resonance imaging findings.

MATERIALS AND METHODS:

Sixty PTC patients with preoperative MR including T2WI and T2WI-fat-suppression (T2WI-FS) were retrospectively analyzed. Among them, 35 had ETE and 25 did not. Pre-contrast T2WI and T2WI-FS images depicting the largest section of tumor were selected. Tumor regions were manually segmented using ITK-SNAP software and 107 radiomics features were computed from the segmented regions using the open Pyradiomics package. Then, a random forest model was built to do classification in which the datasets were partitioned randomly 10 times to do training and testing with ratio of 1:1. Furthermore, forward greedy feature selection based on feature importance was adopted to reduce model overfitting. Classification accuracy was estimated on the test set using area under ROC curve (AUC).

RESULTS:

The model using T2WI-FS image features yields much higher performance than the model using T2WI features (AUC = 0.906 vs. 0.760 using 107 features). Among the top 10 important features of T2WI and T2WI-FS, there are 5 common features. After feature selection, the models trained using top 2 features of T2WI and the top 6 features of T2WI-FS achieve AUC 0.845 and 0.928, respectively. Combining features computed from T2WI and T2WI-FS, model performance decreases slightly (AUC = 0.882 based on all features and AUC = 0.913 based on top features after feature selection). Adjusting hyper parameters of the random forest model have negligible influence on the model performance with mean AUC = 0.907 for T2WI-FS images.

CONCLUSIONS:

Radiomics features based on pre-contrast T2WI and T2WI-FS is helpful to predict aggressive ETE in PTC. Particularly, the model trained using the optimally selected T2WI-FS image features yields the best classification performance. The most important features relate to lesion size and the texture heterogeneity of the tumor region.
The adjustment suggestions for the GOST R 8.596-20xx “State system for ensuring the uniformity of measurements. Metrological assurance for measuring systems. Main principles”
Authors: Kozhenikov A. Iu. , Korovina O. A.
Published: December 2020

It’s suggested to adjust the existing normative documents, in particular the first version of GOST R 8.596-20xx “State system for ensuring the uniformity of measurements. Metrological assurance for measuring systems. Main principles”. The aim of the proposed adjustment is to legitimate the nuclear power plants complex measuring systems application, taking into account their peculiarities in the sphere of state regulation of ensuring the unity of measurements. Generally complex measuring systems possess all features of the adaptive and intelligent measuring systems, which parameters and algorithms can vary during operation. Therefore, it is proposed for adaptive and intelligent measuring systems and for branched measuring channels, to provide the possibility of dividing into separate measuring components without the whole system or channel approving. The systems and channels measuring components are proposed to be considered as approval measuring instruments, which interaction is regulated by certified measurement techniques. When selecting the boundaries of the measuring system or channel, it is proposed to provide the possibility to be guided by the reasonability of the sorting the technical means or operations involved in parameter control as metrologically significant. In addition, it is proposed to introduce a statute that allows to avoid the type approving of the “degenerate” systems consisting of one or more simple channels formed only by the measuring means.
Révision du genre Glenopteris Hübner, 1821, avec la description de deux nouvelles espèces (Lepidoptera, Erebidae, Erebinae)
Authors: Barbut Jérôme , Lalanne-Cassou Bernard , Zilli Alberto , Thöny Hubert
Published: December 2020

Revision of the genus Glenopteris Hübner, 1821, with the description of two new species (Lepidoptera, Erebidae, Erebinae). The genus Glenopteris Hübner, 1821, is revised and two new species are described: G. hampsoni n. sp. from French Guiana, Venezuela, Colombia, Peru and Brazil, and G. medinae n. sp. from Peru, Brazil and Paraguay. Neotypes are designated for G. oculifera Hübner, 1821, and G. herbidalis Guenée, 1854. Habitus and genitalia of the five species of the genus are figured and compared with those of the closest taxa. An identification key is proposed.
Acraea cerasa Hewitson, 1861: its morphological characters and systematic position (Lepidoptera, Nymphalidae, Heliconiinae, Acraeini)
Authors: Pierre Jacques
Published: December 2020

Acraea cerasa Hewitson, 1861, is, depending on works, assigned to different genera. These different systematic positions are listed and discussed. The morphological and ecological data of this species and its relatives are taken into account in order to specify its phylogenetic position in the Acraeini. It is shown that A. cerasa do indeed belong to the clade Acraea (Acraea), sensu Pierre, 1987.
A new alien species in France: first records of the green cone-headed planthopper Acanalonia conica (Say, 1830) (Hemiptera, Fulgoromorpha, Acanaloniidae)
Authors: Pelozuelo Laurent , Bourgoin Thierry , Reynaud Philippe
Published: December 2020

The green cone-headed planthopper Acanalonia conica (Say, 1830) is a Neartic species recently detected in Italy, Switzerland, Romania, Slovenia and Austria. We here report its first capture in France based on a specimen found in Auzeville-Tolosanne (Haute-Garonne) and one observation uploaded on the online biodiversity platform iNaturalist.
Exploring the Psychological Risk Factors in Children with Epilepsy
Authors: Maloku Kuqi Mimoza , Elshani Hazir , Dervishi Eglantina , Ibrahimi Silva
Published: December 2020

There are many factors that aggravate the clinical picture of children diagnosed with epilepsy. Through this study we will explore risk factors related to disease characteristics, cognitive impairments, intelligence and behavioral problems in children with epilepsy. Methods: Based on the medical data of children diagnosed with epilepsy being treated at the Pediatric Neurology Unit, University Hospital of Pristina, and the “Hope” Psychological Outpatient Center in Kosovo, about 100 epileptic children, 55 female and 45 male, aged between 6 and 11 years of school age were administered the Montreal Cognitive Assessment scale (MoCA), Raven’s Standard Progressive Matrices (IQ), and Child Behavior Checklist (CBCL) tests. Results: Children participating in the study reveals a predomination of the generalized epilepsy, which continue to be treated with anti-epileptics for more than 3 years. From them 67% did not show the presence of another co-neurological deficit. Neurological tests show evidences of moderate EEG changes in some children and MRI registrations in 65% of children are unchanged and continue to be treated with 1 or 2 antiepileptic drugs for being under control. Intelligence, cognitive and behavioral problems in cases where they were associated with a number of neuropsychological characteristics increase the risk of a disease aggravation and compromise their overall development. Discussion: We can imply that based on the severity of these concomitant factors of the epileptic conditions, they will constitute a high-risk factor for cognitive problems, low intelligence and the emergence of a number of internalizing and externalizing problems of the child with epilepsy. Conclusions: As a risk factor that increases the level of difficulty of epileptic children in some contexts, including general functioning, school, family and social context, the presence of neurobiological and neuropsychological factors such as issues in internalizing and externalizing behaviors, problems in the cognitive field and the IQ are seen, which is also expected to affect the overall development of children’s quality of life.
终身体育观下的高校羽毛球教学改革探索
Authors: 吴 永萍 , 毛 伟伟
Published: December 2020

素质教育背景下，高校开设羽毛球课程，课程教学中教师以终身体育观为指导，以期培养德智体美全面发展的人才，并逐步深化羽毛球教学改革。本文首先介绍终身体育观下高校羽毛球教学的作用，然后总结羽毛球教学环节已有阻力，最后提出终身体育观与羽毛球教学结合的有效路径。旨在为高校体育教师提供借鉴，全面提高羽毛球教学水平。
高职、高技类院校学生管理工作的特殊问题---以江苏省徐州技师学院为例
Authors: 刘 晓慧
Published: December 2020

本文以江苏省徐州技师学院为基础，结合江苏其他高职、高技类院校的情况，与全国普通高校做对比，针对于学生管理专项工作，探讨高职、高技类院校需要面对的特殊问题。主要包括四个方面：管理隶属、生源素质、原生家庭影响、招生实习就业。
面向核电水池水下机器人线缆扰动效应分析
Authors: 许 雯艳 , 李 战东
Published: December 2020

以实现核电水池日常巡查与应急焊接修复为目的，设计了一款可搭载焊接作业设备的有缆水下机器人。为了实现水下机器人的精确控制，分析了机器人尾端线缆对本体的扰动效应。以机器人的动力学模型为基础，借助数值计算，分别求得在无缆状态、有缆状态下机器人纵向运动、垂向运动、横滚翻转运动和摇艏运动的运动速度、位移随着时间的变化，通过计算结果对比，量化了尾端线缆对于机体的扰动效应。研究结果表明，该种方法可以用于评估线缆扰动对机器人运动的影响，并能够为机器人的改进设计和制定控制策略提供依据。
中华和合文化对构建大学生和谐人际关系的启示
Authors: 潘 骏 , 于 娜
Published: December 2020

中华优秀传统文化是中华民族的精神命脉，传承中华优秀传统文化是实现中国梦的内在要求。和合文化是中华优秀文化的重要内容，展开和合文化教育,可以帮助大学生构建和谐人际关系,自觉将个人价值与和谐社会创建相结合,全面提升现代大学生与人交往的能力与素养。本文通过剖析当代大学生人际交往现状，从中华和合文化中寻求对构建大学生和谐人际关系的启示，结合存在的问题并对当代大学生人际融突问题提出解决办法。
论怎样创办一流图书馆
Authors: 李 兆仁
Published: December 2020

想要办成一流的图书馆：第一要有丰富的馆藏资料；第二要培养出一支服务优秀的图书工作者团队；第三要不断创新管理手段；第四创造良好的阅读环境。
论现代技工院校的教育信息化建设---以我校新校区数字化建设为例
Authors: 张 园莉
Published: December 2020

现代社会，全世界已经进入一个信息时代，计算机技术、多媒体技术和网络技术的不断发展变革已经影响着世界各行各业的发展、对全球的经济、教育都有着深远的影响。作为教育行业，信息技术的快速发展也在推动着教育变革，为为教育创新和跨越式发展提供了崭新空间，作为学校，也要加快信息化建设进程，实现数字化、智能化校园。
关于俳句现代美的初探讨
Authors: 高 春荣 , 朱 文艳
Published: December 2020

俳句是日本文学史上极具代表性的定型诗，它基本上是由5·7·5共3句17个音构成的。俳句擅用极其简洁的语言客观地描写感动的对象，以间接表达情感见长，力求在短短17个音里传递出耐人寻味的余情余韵。由此可见，俳句始终散发着不同寻常的文学魅力，将当下人们所追求的极简美由内及外展现得淋漓尽致。所以，本文将从如何欣赏俳句的美并达到精神层面的治愈功能方面试对俳句的现代美进行探讨。
新时代做好辅导员工作的看法与建议
Authors: 孟 凡渠
Published: December 2020

在高校，辅导员是开展大学生思想政治教育工作的主要骨干力量，是学生日常思想政治教育和管理工作的主要组织者、实施者和指导者。新时代背景下，辅导员必须努力成为学生成长成才的人生导师和健康生活的知心朋友。因此，深入了解新时代辅导员的思想状况，有针对性的做好他（她）们的思想与行政管理工作，全面激发他(她)们工作的积极性、主动性和创造性，不仅是做好学生思想政治工作的前提和基础，更是不断加强和推进高校辅导员队伍建设重要途径。本文就针对新时代辅导员队伍建设工作中存在的一些现实问题，进行深入分析，努力摸清现状梳理结构，加以帮助解决，扎实推进新时代辅导员队伍的创新发展。
广东河源闽南语方言岛语音研究
Authors: 刘 立恒 , 曾 滢而 , 张 颖颖
Published: December 2020

本文描写了广东省河源市埔前镇泥金村闽南语的音系，研究了泥金闽南语的语音特点，包括声母、韵母、声调特点及变调情况（两字组），论文还分析了作为方言岛的泥金闽南话与周边客家话的关系。
雨课堂在中职英语教学中的运用与探讨
Authors: 马 燕
Published: December 2020

在移动互联网和大数据背景下，清华大学推出的智慧教学工具--雨课堂作为一种现代信息化教学手段,被广泛地应用到各种课程教学中,发挥着越来越重要的作用。本文以中职英语教学为例,分析了在中职英语教学中如何有效运用雨课堂,提高课堂效率和质量，为一线教师课堂教学模式提供借鉴价值,为混合式教学模式提供实践参考。
Подтвержденные случаи рака шейки матки в Бразилии в период с 2010 по 2014 год
Authors: Farias Rafaela Santos , Facco Lucas , Fecury Amanda Alves , Araújo Maria Helena Mendonça de , Oliveira Euzébio de , Dendasck Carla Viana , Souza Keulle Oliveira da , Dias Claudio Alberto Gellis de Mattos
Published: December 2020

Мазок Папаниколау (PCCU) является гинекологическое обследование, выполнено у женщин для того, чтобы обнаружить повреждение шейки матки. Изменения могут наблюдаться как расстройство тканей, что составляет его. Цель этой работы состоит в том, чтобы показать подтвержденные случаи рака шейки матки в Бразилии в период с 2010 по 2014 год. Исследование проводилось на основе данных DATASUS (http://datasus.saude.gov.br). При хорошей работе по профилактике заболевания, которое считается серьезным, результат является удовлетворительным и эффективным. Благодаря результатам, полученным путем анализа данных в период с 2010 по 2014 год, соответственно, делается вывод, что с годами поиск теста постепенно увеличивался, но некоторые аспекты сохранялись, такие как стыд выполнения теста PCC, страх, боль, среди других. Однако результаты показали высокий уровень испытаний в юго-восточном регионе и более низкий показатель на севере, при этом женщины в северном регионе были слабо осведомлены о них. Поэтому распространение, осведомленность и эффективность цитопатологического обследования очень важны для профилактики рака шейки матки, который сегодня является основной причиной смертности среди бразильских женщин
AN ANALYSIS OF STUDENT’S ERROR IN WRITING DESCRIPTIVE TEXT
Authors: Rahmawati Suryana Rika
Published: December 2020

The paper aims to find out the most typical errors and sources of  error  on  students’  descriptive  writing  of  the  tenth  grade  of  SMAN 3 Rangkasbitung. This study was conducted in the SMAN 3 Rangkasbitung, the 1st semester of the school year 2014-2015. The population of the research was 30 students from one class of the tenth grade of SMAN 3 Rangkasbitung and the sample was taken 30 students. The writer uses a descriptive qualitative approach and error analysis based on the aspect. As the result, the researcher found that the students made 78 errors in their descriptive writings. The errors occurred in all types of errors investigated from Azar’s give the types of errors in grammatical aspects to classified based on linguistic category taxonomies aspect. There are verb tense, omit a word, spelling, add a word, capitalization, word choice, word order, singular – plural, word form, article. The sources of error was also mostly due to interlanguage transfer. Therefore, the teachers should be more focus on teaching of verb tense then must give remedial teaching after identifying students’ error in writing also the teachers can teach students to more practices on writing.
LEXICAL AND GRAMATICAL ERROR ON STUDENTS’ TRANSLATION FROM INDONESIAN TEXT TO ENGLISH TEXT
Authors: Retnowati Nanik
Published: December 2020

Knowledge about what the learners’ know is part of teaching process, since the knowledge would be the clue for teachers in designing lesson material as well as method. Error analysis then becomes a common practice for language teachers to elicit what the learners have acquired.Translation is a kind of language skill which requires both linguistic and non linguistic knowledge.Thus studying students’ language used in their translation would be beneficial for teachers. This study is aimed at finding error on the students’ translation. This finding should give a description about the students’ obstacles in translation process.The writer took randomly ten ( 10 ) translation  result of the students at English Education Program of FKIP UIKA Bogor as the sample data. Error analysis procedure is used; i.e. identifying, describing, explaining, and finding the cause of the error. The study found that students made some lexical errors such as miss spelling and inappropriate word choice. This is assumed to be caused by students’ lack of knowledge on spelling, word formation, word equivalence, and different point of view in Indonesian and English expressions. The grammatical error found are the use of affixes, verb, word order, and auxiliaries. The practice of omitting and adding was also found. Some shows the students’ effort to avoid the word due to their difficulties in putting the correct word in the construction. Others show that they are trying to use translation strategy, i.e.modulation to anticipate the difficulties in having literal translation. All findings should give an illustration that students need to be equipped more with the knowledge about how both source and target language operate to express meaning.
ENGLISH LEARNERS’ LANGUAGE USED FOR CHATTING: A SYNTACTIC AND CONVERSATION ANALYSIS
Authors: Retnowati Nanik
Published: December 2020

Describing language is one of the most important tasks in Linguistics. Language description may give valuable contribution to language teaching practice. This paper is concerning with describing learners’ language used for chatting. Chatting is a spoken language which is written. As a natural language it may have its own structure which can be described. From the point of view of syntax, spoken language usually has its own set of grammar patterns which sometimes may be quite different from that in written language. Language used for chatting would likely provide important information moreover if it is done by language learners who are in the process of trying to make sense of the series of knowledge both on language elements and their usage in the real communication. Chatting task with foreigners was applied to the early semester of English learners. Using Syntactical and Conversation Analysis, this study found the characteristics of the natural language used for chatting and some strategies used by the participants to survive the communication. The description gives an important clue to the benefits of chatting activities for the English learners.
INTEGRATING INSTAGRAM TO SCAFFOLD STUDENTS’ WRITING IN EFL CLASSROOM
Authors: Rizkullah Naufal
Published: December 2020

Technology is one of important aspects that has very crucial effects on learning process nowadays. This study investigates the integration of technology in EFL Classroom especially in Writing class. The study employs classroom action research in which observation and documentation were used as data collection. The study was done in a vocational school in Indonesia. The results show that students have problems in their writing and Instagram can be used as a tool to scaffold their writing in terms of motivation and positive learning environment.
Results of Structural Analysis of WWER-1000/320 Containment Behavior under Severe Accidents
Authors: Liashenko L. , Panchenko A. , Shugailo O. , Koliada M.
Published: December 2020

The paper presents the review and evaluation of the containment prestressing system within reinforced concrete structures under seismic loads and severe accidents. Given the complex design of the containment, the detailed finite element model has been developed and used to describe real containment behavior. Containment stress and strain state was calculated by modern LIRA software. The first stage analyzed the results of WWER-1000/320 containment stress and strain state calculation under a combination of loads caused by maximum design basis accident (MDBA) and safe shutdown earthquake (SSE) and defined minimum acceptable tension of tendons. The research determines the minimum acceptable tension of tendons in the containment prestressing system, and evaluates the strength and reliability of containment structures under a combination of loads in normal operation + design-basis accident + maximum design earthquake (NO + DBA + MDE). The verification calculations have been performed using tendon tension of 780 ton-force in the cylindrical part of the containment and 760 ton-force in the containment dome.

The second stage covered the analysis of severe accident parameters (pressure and temperature) and the results of calculation. Stress and strain state in ZNPP-1 containment has been calculated, parameters (pressure and temperature) under which the containment can loss its protective and isolation functions have been identified, calculation results have been analysed and conclusions of containment structural integrity and ensuring the implementation of the design confining functions have been made. Based on the calculation results, it can be concluded that strength of the containment cylindrical part during a beyond design-basis accident cannot be ensured under parameters t (temperature) = 120°С, p (pressure) = 0.6 MPa.