bluuebunny/crossref_metadata_2025 huggingface dataset:
Blockchain as a Type of Distributed Ledger Technology
Authors: Ballamudi Koteswara Rao
Published: January 2021

Distributed ledger technology (DLT) that stores data (usually immutable and sequenced transaction records) in a decentralized way through cryptography and consensus algorithms. The first widely recognized implementation of the blockchain took place in 2009 on the Bitcoin public blockchain. Since then, other types of blockchain have been developed for a wide range of applications and features built on common principles such as decentralization, encryption, consensus, and immutability. In particular, blockchain technology is most widely used in transaction settlement and digital currency banks and the financial sector, as well as in supply chain applications that help participants solve problems quickly and efficiently. Other use cases continue to be developed. As a form of information management, blockchain and related DLTs offer advantages over traditional databases and may help develop certain new technologies such as the Internet of Things. Blockchain regulation is currently restricted at the international and federal levels, but state-level legislation provides support and awareness of aspects of blockchain technology. Most of the current regulations are in the form of self-regulation by blockchain developers and related communities, but many challenges and risks such as data privacy and security need to be addressed in the near future.
Projected Wirtinger Gradient Descent for Digital Waves Reconstruction
Authors: Liu Suhui , Shi Lelai , Xu Weiyu
Published: January 2021

This work attempts to recover digital signals from a few stochastic samples in time domain. The target signal is the linear combination of one-dimensional complex sine components with R different but continuous frequencies. These frequencies control the continuous values in the domain of normalized frequency [0, 1), contrary to the previous research into compressed sensing. To recover the target signal, the problem was transformed into the completion of a low-rank structured matrix, drawing on the linear property of the Hankel matrix. Based on the completion of the structured matrix, the authors put forward a feasible-point algorithm, analyzed its convergence, and speeded up the convergence with the fast iterative shrinkage-thresholding (FIST) algorithm. The initial algorithm and the speed up strategy were proved effective through repeated numerical simulations. The research results shed new lights on the signal recovery in various fields.
Glioma Segmentation and Classification System Based on Proposed Texture Features Extraction Method and Hybrid Ensemble Learning
Authors: Bhatele Kirti Raj , Bhadauria Sarita Singh
Published: January 2021

This paper presents an efficient and accurate automated system based on the hybrid XGBoost with Random forest (XGBRF) ensemble model in order to classify the Glioma (type of mostly diagnosed brain tumor) into low grade and high grade Glioma. In this approach initially global thresholding is employed on various MRI sequence and their fusion combinations in order to perform the accurate segmentation. Then uses a proposed Enhanced wavelet binary pattern run length matrix method (EWBPRL) for textural features extraction from the region of interest or segmented Glioma tumor region. This proposed feature extraction method is based on the Discrete wavelet transform (DWT), Local Binary pattern (LBP) and Gray level run length Matrix (GLRLM) methods to extract texture features from the segmented region. Some morphological features are also computed from the segmented region along the textural features. Finally both these extracted features are employed in order to train a hybrid XGBoost with Random forest ensemble model for the first time. The proposed automated system apart from accurately detecting and segmenting the tumors region from the fused MRI sequences, also tends to determine the grading of Glioma in terms of severity. The proposed system is evaluated on the large size balance local dataset and as well as on the popular global datasets like BRATS 2013 and BRATS 2015. This approach offers an encouraging accuracy of 99.25% on the local dataset with the fusion of T1C+T2+Flair MRI sequence as compare to 96.75% accuracy, which is achieved utilizing the fusion of T1+T1C+T2+Flair MRI sequence.
Feature Extraction and Image Retrieval of Landscape Images Based on Image Processing
Authors: Li Zhe , Han Xiao , Wang Liya , Zhu Tongyi , Yuan Futian
Published: January 2021

Facing the existing digital image libraries on landscape, researchers need to urgently solve a challenging problem: how to realize rational management and accurate retrieval of landscape images that contain feature information like hierarchy, layout, color system, and color matching. For accurate organization and labeling of landscape Images, this paper presents a novel method for feature extraction and image retrieval of landscape images based on image processing. Firstly, a color quantization process was designed for landscape images, and used to analyze the color composition and color space pattern (CSP) of such images. Next, the existing methods, which are suitable for the extraction of color features from landscape Images, were briefly reviewed, and the basic flows of our improved algorithm and division method of landscape color blocks (LCBs) were explained. Finally, the retrieval performance of landscape images was improved by matching of weighted color blocks of regional landscape, based on the multi-dimensional color eigenvectors of landscape image. The experimental results demonstrate the effectiveness of our algorithm. The research results shed light on the feature extraction from other types of color images.
Detection of Lung Cancer Tumor in CT Scan Images Using Novel Combination of Super Pixel and Active Contour Algorithms
Authors: Shafiei Farzaneh , Fekri-Ershad Shervan
Published: January 2021

Lung cancer is a problem that has become increasingly widespread in recent years due to smoking, poor nutrition and other factors. If lung cancer cells are identified at an early stage, they will be crucial in saving lives. Machine learning-based approaches to detecting lung cancer tumors have reduced the need for manpower, reduced human error and reduced medical costs. CT scan images are one of the efficient image types to identify these tumors in the lung. However, the random location and shape of the tumors and poor quality of CT scans are biggest challenges in lung cancer tumor detection. In this paper, a multi-step method for detecting cancer tumors in CT scans is proposed. In the proposed method, the images are first clustered using the super pixel algorithm. The morphological operators are then used to cut the unconnected parts. Finally, the cancerous nodules and tumors are identified using the active contour algorithm. The performance of the proposed approach is evaluated on benchmark LIDC database in terms of Dice similarity measure which is 84.88%. Results show the higher performance of the proposed approach in comparison with state-of-the-art methods in this area.
Teaching Listening Comprehension
Authors: Wang Ziwei
Published: January 2021

Teaching Listening Comprehension is about developing listening comprehension skills in the language classroom. First of all, this paper introduces listening comprehension from the perspective of pedagogical research. Then proposes the interactive mode of listening comprehension, the types of spoken English and the reasons why listening becomes difficult. Let readers understand the micro-skills of listening comprehension and the types of classroom listening performance. Lastly, readers can Learn the principles of designing listening techniques and master the listening techniques from beginning to advanced.
Formation and development of Ontology of designing as a scientific discipline: a brief history of personal experience
Authors:   Samara University (Samara National Research University named after academician S.P. Korolev), Samara, Russia, Borgest N.М. ,   Samara Federal Research Scientific Center of the Russian Academy of Science, Institute for the Control of Complex Systems of the Russian Academy of Science, Samara, Russia
Published: January 2021

The article attempts to present the author's view on the history of the formation and development of a scientific discipline, referred to as the ontology of designing. The presented material summarizes the work carried out by the author over the past ten years. The author as the founder and executive editor of the journal of the same name with as the discipline under consideration uses the articles published in it and the materials of his works presented at various international conferences, in other specialized journals and published monographs. Despite the fact that the analysis of the formation of the discipline is largely based on the author's own personal experience and is viewed through the prism of this experience, nevertheless, the basis of this formed discipline is the numerous works of its predecessors, ranging from the architects of ancient Greece, mathematicians and engineers of the Middle Ages, and ending with modern works in the field of artificial intelligence and information technology. The author shares a brief personal background of the formation of his own understanding of the ontology of designing, paying tribute to his first scientific advisor V.G. Maslov, who fostered in him a systematic approach to optimizing complex systems, paying particular attention to design uncertainty. Work experience on the creation of computer-aided design systems for the engine, and later for the aircraft as a whole in cooperation with industry, teaching the disciplines on the design of technical systems, general design theory, information systems, databases, ontology of designing and production ontology allowed the author to develop a scientific basis for a new discipline, determine its boundaries and a place in the existing scientific space, develop a range of key terms, form the very concept of ontology of designing. The article provides examples of the implementation of the concept of ontology of designing in various subject areas, in particular, when creating a robot designer at the stage of preliminary design of an aircraft, when forming a model of a future university, in the tasks of production planning, development of electronic manuals, design of scientific journals and other organizational and technical systems.
Thrombosis with Thrombocytopenia - A Vascular Paradox
Authors: Nanjappa Veena , Devegowda Lachikarathman , Rathore Abhishek , K.S Sadanand , Nanjappa Manjunath Cholenahally
Published: January 2021

BACKGROUND Thrombosis associated with thrombocytopenia is a vascular paradox which we seldom encounter in our clinical practice. We hereby describe four real world clinical situations and their therapeutic management. Since there are no guidelines regarding this subset, most of the treatment is based on few anecdotal reports and consensus data. Hence, we have reviewed the literature to throw light on some pertinent clinically relevant questions. Our objective is to describe and discuss the probable reasons of vascular paradox and its management. METHODS It is a descriptive study of four cases collected over one-year period including patients of thrombosis with thrombocytopenia. RESULTS In the first case, the patient had pulmonary embolism as a presenting manifestation of leukaemia. Only 5 % cases of AML-M3 sub type acute promyelocytic leukaemia present with normal peripheral blood smear. Patient had thrombocytopenia with deep vein thrombosis and pulmonary embolism. In the second case, secondary antiphospholipid antibody syndrome (APLS) presented with ilio-femoral deep vein thrombosis associated with thrombocytopenia and bleeding tendency. In the third case, antiphospholipid antibody syndrome with thrombocytopenia was associated with severe pulmonary hypertension and deep vein thrombosis. In the fourth case, patient presented with non-ST elevation myocardial infarction (NSTEMI) with thrombocytopenia. He was diagnosed with idiopathic thrombocytopenic purpura. He had angiographic evidence of critical triple vessel disease. He was treated with coronary bypass surgery after initiating treatment with oral eltrombopag and steroids. CONCLUSIONS We have highlighted four clinical situations ranging from frank malignancy to pure vascular pathology, where we have encountered and tackled the vascular paradox of ‘thrombosis and thrombocytopenia’ and reviewed the literature pertaining to these case scenarios. KEYWORDS Thrombosis with Thrombocytopenia, APLS, AML-M3, Pulmonary Hypertension, ITP
Characteristics of Surgical Anatomy of the Left Hepatic Vein: Sonographic Findings
Authors: Moshkin Andrew Sergeevich , Sheverdin Nikolay Nikolaevich
Published: January 2021

Introduction. The development of modern surgery requires the advancement of expertise about individual characteristics of large vessels development. The expansion of surgical treatment options of liver diseases determines the necessity of more detailed information about the anatomy of the portal, biliary and arterial systems, and about the anatomy of the hepatic veins in particular.The aim of research was to study characteristics of the left hepatic vein formation based on ultrasound examination findings.Materials and methods. The study included 39 outpatients, 11 males and 28 females, aged 17-84. Using ultrasound imaging methods, the authors determined linear dimensions, variations and angles of junction of the veins forming the left hepatic vein.Results. The main six variations of the left hepatic vein were determined as follows: variation I was observed in 9 cases (23.1%), variation II - in 7 cases (17.9%), variation III - in 11 cases (28.2%), variation IV - in 6 cases (15.4%), variation V - in 5 cases (12.8%), variation VI - in 1 case (2.6%). The angle of junction of the veins I and III at the site of their entry into the main trunk of the venous system was from 19-21 degrees to 80-85 degrees; the angle of junction of the vein II was from 21 degrees to 61.6 degrees. Deviation of veins in the plane perpendicular to the rest veins ranged from 32 degrees to 81.7 degrees. Additional veins entered at the angles from 22.5 degrees to 45 degrees. When observing, the vein diameter for veins I and II was from 1.3 mm to 4.8 mm, and for vein III - from 1.5 mm to 3.5 mm. There were additional veins determined with an average diameter equal 2.25 mm 0.25 mm. The size of the trunk of the left hepatic vein directly corresponded to a diameter of 2 mm to 7.7 mm.Conclusion. The presented variations are of major importance for modern diagnostic methods, they also expand the understanding of the anatomical variations in the left lobar vein formation, which should be taken into account by surgeons during liver operations.
Association between Abscess Fluid and Procalcitonin in Blood Serum
Authors: Zubareva Nadezhda Anatol'evna , Sosnin Dmitriy Yur'evich , Renzhin Andrey Viktorovich
Published: January 2021

Introduction. Currently there are no relevant findings from a comparative study of the chemical composition of the abscess fluid and blood serum.The aim of the research was to study the composition of procalcitonin (PCT) contained in the blood serum and abscess fluids of the soft tissues and the abdominal cavity in local inflammation and sepsis.Materials and methods. The PCT concentration was determined in blood serum and the content of abscesses of the soft tissues and abdominal cavity in 45 patients of the surgical department. The experimental group included 31 patients with inflammatory processes that did not result in the organ failure. The comparison group included 14 patients with abscesses which manifested clinical and laboratory signs of the systemic inflammation and organ failure. The control group included 25 healthy individuals. The PCT level was determined by ELISA using the Procalcitonin - ELISA - BEST test system (Vector - Best, Russia).Results. Differences in the PCT content in the serum between groups were characterized by a high degree of statistical significance (H = 58.79206, p = 0.0000). The highest PCT level in the serum was observed in patients of the comparison group, where the average values ​​were 11.94 4.98 ng / ml, the lowest PCT level in the serum was observed in patients of the control group. The PCT concentration in the content of abscesses was lower compared to blood serum and was characterized by statistically significant differences in patients of both - experimental group and comparison groups (p = 0.00001)Conclusion. Abscesses of the soft tissues and the abdominal cavity without signs of generalized infection are not accompanied by an increase in the PCT concentration in the blood serum for more than 2 ng/ml. The PCT concentration in the content of abscesses was lower than its content in the blood serum in both - the local inflammatory process and in the development of sepsis.
Major Characteristics of Experimental Models of Abdominal Adhesions
Authors: Yushkov Boris , Sarapultsev Alexey , Sarapultsev German
Published: January 2021

The search for preventive and treatment methods for adhesions of the abdominal cavity and adhesive disease is one of the most important tasks of pharmaceutical and medical sciences; and the solution is based on experimental research studies involving animals. However, the varietyof adhesion modeling techniques, as well as specific features of experimental animals imply considerable difficulties to such research. The aim of the review was to describe and systematize experimental models of the adhesive process in the peritoneum applicable to small laboratory animals. The authors identify major models of adhesion induction, emphasizing the species differences of small laboratory animals that could affect the interpretation and extrapolation of the data obtained. The authors have proven that since adhesion is a complete product of the body inflammatory response to tissue damage, the treatment of adhesions should be solely based on surgical techniques, while therapeutic approaches might only prevent, slow down or reduce the intensity of adhesion processes.
Prevention of Prolonged Lymphorrhea in Minor Pectoral Myoplasty in Women after Breast Cancer Surgery: Anatomical and Physiological Aspects
Authors: Aseev Alexandr Vladimirovich , Maximov Dmitry Anatolyevich , Suleymanova Olga Olegovna
Published: January 2021

Introduction. Surgery remains the main method of treatment for breast cancer patients. However, in surgery a large number of lymphatic vessels are crossed which inevitably leads to a lymph flow damage. The article discusses the problem of lymphorrhea in breast cancer patients after the radical mastectomy and radical resection. The aim of the study was to assess the effectiveness of minor pectoral myoplasty in the axillary region of the "dead space" for lymphorrhea prevention after radical mastectomy and radical resection.Methods. The case group included 30 patients who underwent 30 surgeries with myoplasty of pectoralis minor (Maddens radical mastectomy or radial resection) in the Tver Oncological Center at the Department of breast pathology from 2016 to 2017. The control group included 30 patients who underwent Maddens mastectomy or radical resection without myoplasty (conventional option).Results. In the case group, during the mastectomy, the patients with lymphorrhea had the drainage removed on the 5,31,2 day. The total amount of the drainage was around 235,43,6 ml. The average daily volume of the drained liquid was 47,12,7 ml. In the control group, during the radical mastectomy without myoplasty, the drainage was removed on the 12,71,4 day. The average total amount of the drained liquid was 1691,632,5 ml. The average daily drained volume was 130,32,5 ml.The patients after radical resection in the case group had the drainage removed on the 5,21,2 day. The total amount of the drained liquid in patients with lymphorrhea was 25 ml/day. The total amount of the drained liquid was 223,711,3 ml. The average daily drained volume was 44,62,3 ml. The patients after radical resection in the control group had the drainage removed on the 11,22,0 day. The average total volume of the drained liquid was 835,526,4 ml. The average daily drained volume was 69,92,2 ml.Conclusion. Application of A. Kh. Ismagilov intraoperative technique dead space closure in minor pectoral myoplasty (patent No. 2385673, issued April 10, 2010) with the simultaneous application of compression garments appears to be a simple and effective method for reducing postoperative lymphorrhea. Myoplasty was effective in reducing lymphorrhea regardless of the type of surgical intervention (radical mastectomy or radical resection). Lymphorrhea duration reduced in more than 2 times.
تطوير وتنفيذ حملات توعية عامة حول سرطان الثدي في دولة الإمارات العربية المتحدة: دراسة حالة لإمارة رأس الخيمة
Authors: أبو عواد دانية , حسين سيدة , جي ماكي مارتن , سي برينان وباتريك
Published: January 2021

يعتبر سرطان الثدي السبب وراء أكثر وفيات السرطان في دولة الإمارات العربية المتحدة، وهو أكثر أنواع السرطان شيوعًا بين النساء في الدولة. بالوقت الحالي، لا تزال مشاركة النساء في فحوصات سرطان الثدي منخفضة في دولة الإمارات، بالرغم من تشخيص النساء في مراحل متقدمة من المرض، مما يؤثر سلبًا على عملية تشخيص المرض ومعدلات البقاء على قيد الحياة. سيتيح الكشف المبكر توفير المزيد من خيارات العلاج، ويحسّن ظروف البقاء على قيد الحياة، ويقلل من عدد الوفيات المبكرة. تحتاج حملات التوعية الصحية وخدمات الفحص إلى دراسة العوائق التي تمنع النساء في دولة الإمارات العربية المتحدة من إجراء الفحوصات المبكرة، وستساعد على ترويج طرق مستهدفة لتشجيع مشاركة النساء الإماراتيات وغير الإماراتيات على حد سواء على إجراء الفحوصات المبكرة. تستكشف ورقة السياسة هذه استفادة واستخدام النساء لخدمات فحص سرطان الثدي والخدمات الصحية الأخرى المتوفرة التي تقدم للنساء في دولة الإمارات، وتركز ايضاً على التعرف على وجهات نظر وتصورات أفراد المجتمع، لأن ذلك يقدم تفسير حول ردود أفعالهم وخياراتهم، بهدف زيادة الوعي وتنفيذ استراتيجيات وحملات فعالة، والتواصل بفعالية اكبر، وتعزيز مستوى المعرفة لدى الاخصائيين المهنيين الصحيين حول ممارسات فحص الثدي، وتوعية المجتمع حول الدور المهم الذي تلعبه المنظمات والمؤسسات في تثقيف المرضى. من خلال الاعتماد على تصورات ووجهات نظر النساء والممرضات وممثلي المنظمات الصحية، تختتم ورقة السياسة هذه برفع مجموعة من التوصيات لدعم الحملات العامة الفعالة لمحاربة مرض سرطان الثدي وتعزيز مستوى مشاركة النساء لإجراء فحص الثدي.
Tolerance in the UAE Islamic Education Curriculum
Authors: Alhashmi Mariam , Bakali Naved
Published: January 2021

Promoting the values of peace and tolerance within an international climate of turbulence and instability is an essential responsibility for governments and schools. Threats to tolerance include the circumstances of societal challenges, instabilities in the region, and the increasing risks of social media. Ways to nurture and instill tolerance through the subject of Islamic education in UAE high schools is a key concern. Through a case study of the written, taught, and learnt curriculum of UAE Islamic education, this paper investigates the teaching and learning of tolerance in UAE high schools. It provides recommendations on how Islamic education classes, built on an awareness of the Islamic value of tolerance as a foundational component, can be utilized for shaping educational experiences that promote open mindedness. Curriculum-aligned Islamic education resources need to be further developed and teacher professional learning programs should be launched to empower teachers to achieve this intended aim.
Raising Awareness of Cultural Heritage: Experiential Learning, Architecture Education, and Documentation of Historical Architecture in Ras Al Khaimah
Authors: Abuhantash Tawfiq , Assi Eman Al , Ra’ed Abeer Abu
Published: January 2021

Cultural heritage plays a considerable role in society. It reflects and shapes the values, beliefs and aspirations that define national identity. It is also a source of pride for new generations and gives a sense of belonging to communities.
The remains of old architectural structures, which are surviving the creep of modern concrete buildings in historical locations in Ras Al Khaimah, are signs of a rich cultural heritage that has evolved more elaborately compared to many cities in the region. The lack of records on these houses and their urban forms, however, increases the likelihood of potential knowledge loss related to the Emirati heritage that they embody.
The aim of this paper is to raise awareness among the community, especially the youth, about the importance of cultural heritage in Ras Al Khaimah through engaging academic institutions. One way to preserve this cultural heritage is through documentation of the current physical conditions for select historic houses in the Old Town area of Ras Al Khaimah using architectural drawings, images, and photos. A pilot experiential learning project that engaged American University of Ras Al Khaimah (AURAK) architecture students in a documentation process for six buildings highlights the potential for similar approaches at other academic institutions and demonstrates how collaborative partnerships may result between various stakeholders and academic researchers, students, and practitioners in a mutual effort to preserve cultural heritage.
Mobilizações de perspectivas de Paul Feyerabend na pesquisa em educação em ciências
Authors: Ganhor João Paulo , Bernardino de Jesus Atair José , Meglhioratti Fernanda Aparecida
Published: January 2021

Pressupostos presentes nas obras de Paul Feyerabend fornecem importantes dimensões de enriquecimentos para as práticas ligadas à Educação em Ciências. Nessa direção, realizamos uma revisão bibliográfica em periódicos atrelados à Pesquisa em Educação em Ciências e nas atas de todas edições do ENPEC, ilustrando como esse autor vem sendo apropriado pela área, buscando responder as seguintes questões: Como as perspectivas de Paul Feyerabend vêm sendo mobilizadas no contexto da PEC? Quais espaços e autores têm contribuído nesse processo? Encontramos um total de 20 artigos e 23 autores envolvidos. A partir da leitura dos artigos e de um tratamento quali-quantitativo, propomos três categorias que aglutinam os focos dos trabalhos. Além disso, apresentamos nossas análises quanto a distribuição temporal e recorrência: dos autores, das instituições, das áreas de formação inicial e das obras utilizadas. Realizamos ainda uma análise das citações entre os trabalhos que compõem o corpus, buscando identificar os mais centrais e suas relações.
Ensino, aprendizagem e novas tecnologias: relações entre abordagens teóricas clássicas e contemporâneas
Authors: Kripka Rosana Maria Luvezute , Viali Lori , Dickel Adriana , Lahm Regis Alexandre
Published: January 2021

O artigo visa apresentar um paralelo entre as teorias clássicas e contemporâneas de ensino e aprendizagem com as teorias modernas de ensino e de aprendizagem com o uso das Tecnologias Digitais da Informação e Comunicação (TDIC). Foi realizado um estudo investigativo teórico, segundo a abordagem da pesquisa qualitativa, com vistas a identificar teorias existentes sobre ensino e aprendizagem com o uso das TDIC e suas relações com abordagens teóricas clássicas e contemporâneas. Conclui-se fazendo um paralelo entre as teorias construtivista, cognitivista, humanista e sócio-histórica com o construcionismo e o conectivismo, destacando proximidades e distanciamentos entre o grupo clássico e contemporâneo com a teoria moderna.Palavras chave: Teorias de Ensino e de Aprendizagem Clássicas; Teorias de Ensino e de Aprendizagem Contemporâneas; Teorias de Ensino e de Aprendizagem com Novas Tecnologias
Estratégias pedagógicas de uso e apropriação dos espaços patrimonializados do centro histórico da cidade de Belém do Pará: perspectivas de decolonização do patrimônio
Authors: Gonçalves Sabrina Forte E Silva
Published: January 2021

A Educação Patrimonial exercida de forma crítica, pode se constituir como um processo de mediação capaz de atribuir aos bens culturais diversas interpretações que dão sentido à diferentes grupos sociais e, dessa maneira, favorecer o reconhecimento da diversidade sociocultural do patrimônio, fortalecer as políticas de preservação e contribuir para o exercício da cidadania. Esse artigo objetiva apresentar a experiência de um trabalho pedagógico, o qual articulou Educação Patrimonial e o Ensino de Geografia, visando a produção do conhecimento geográfico crítico, por meio de uma abordagem decolonial sobre o patrimônio cultural do Centro Histórico da cidade de Belém, no estado do Pará. A metodologia contou com um conjunto de ações desenvolvidas pelo Projeto “Do espaço real ao lugar ideal” realizado no âmbito da educação básica, com uma turma do 8º ano, em 2017, avançando para o ano de 2018, com a mesma turma, já no 9° ano, da Escola Estadual de Ensino Fundamental e Médio Ruth Rosita de Nazaré Gonzales, na cidade de Belém e o Projeto de Extensão Acadêmica “Roteiros Geoturísticos: conhecendo o Centro Histórico de Belém na Amazônia”, desenvolvido pelo Grupo de Pesquisa em Geografia do Turismo - GGEOTUR, da Universidade Federal do Pará. Os dois projetos convergentes, proporcionaram uma abordagem diferenciada e estratégias inovadoras, quanto ao uso e apropriação do patrimônio, de maneira crítica e significativa, revelando a potencialidade da Educação Patrimonial como caminho para decolonizar o patrimônio.Palavras-chave: Educação Patrimonial. Ensino de Geografia. Patrimônio Decolonial. Cidadania.
Mobile Device Data Analysis to Determine the Demographics of Park Visitors
Authors: Monz Christopher , Creany Noah , Nesbitt Jordan , Mitrovich Milan
Published: January 2021

The systematic gathering of data on visitors to parks and protected areas (PPAs) is an important aspect of adaptive management, but also presents an ongoing challenge to conduct. Visitor questionnaires, often administered at entrance facilities, trailheads and parking areas, are the most common approach, but require significant staff time for field work and analysis and may not be inclusive of all visitors. In this paper, we present a novel, mobile device-based assessment strategy that can determine basic visitor demographic attributes without the need for field-based assessments. We compared results from this strategy to a common, trailhead questionnaire approach in three urban-proximate park locations and generally found similar results, except in a situation where a significant number of visitors may not have entered via the main location, and thus were missed by the survey. Overall, the mobile device strategy is likely more accurate in situations where visitors enter parks from multiple, sometimes informal entry locations, but is also somewhat limited in the types of data available.
Camp Counselor as a Role Model for Social-Emotional Learning Skills in Camp
Authors: Owens Megan , Browne Laurie
Published: January 2021

Camp programs hire counselors to fulfill multiple responsibilities and to role model positive behaviors for campers. Social-emotional learning (SEL) is a skill set that develops over time and through engagement with an array of individuals and opportunities that support social and emotional health across the lifespan. The social design of an overnight summer camp may be an ideal setting for nurturing SEL through camper-counselor relationships. The purpose of this study was to explore how counselors understood and modeled SEL with their campers and to what extent the campers recognized and interpreted those behaviors. Evidence suggests that counselors intended to role model SEL; however, they were inconsistent in how they modeled SEL during interactions with campers. Counselors’ own SEL may need more explicit support and training to more effectively role model SEL for campers.
Energía solar en paradas de bus una aplicación moderna y vanguardista
Authors: Naranjo Silva Héctor Sebastián , Punina Guerrero Diego Javier , Morales Martinez Juan José
Published: January 2021

La eficiencia energética es un tema relevante globalmente debido a la creciente dificultad para acceder a fuentes de energía con mínimos impactos ambientales, según la Agencia Internacional de la Energía en el 2016 el porcentaje de renovables mundialmente fue 24,5% [9], en este sentido el objeto del artículo es transmitir la investigación de un grupo multidisciplinario que se respalda con la ingeniería para determinar condiciones de energía renovable en un proyecto piloto, el proyecto sobre el acondicionamiento de energía fotovoltaica aplicada en paradas de buses eliminando energía por fuentes convencionales a lo largo del boulevard Albino Corzo, en la ciudad de Chiapas en el departamento de Tuxtla Gutiérrez de México.

La metodología del estudio es cuantitativa basada en resultados de cálculo carácter investigativo y de acción, los resultados son aceptables, contrastados con la incorporación de un arreglo de cinco (5) paneles solares simulados en un programa informático para la parada de bus tipo conejo que reduce 48,37 [kg] de CO2 anuales al ambiente.
Manajemen Mutu Madrasah Ibtidaiyah II Palembang
Authors: Akhyar Syaiful
Published: January 2021

. Keberadaan MI Hijriyah II Palembang Pada awalnya berada disalah satu ruangan dibagian bawah mushollah Hijriyah yang dijadikan sebagai tempat belajar bagi anak-anak yang ada disekitarnya. Lama kelamaan jumlah siswanya semakin bertambah dan dikenal masyarakat sekitarnya dan memberikan dampak positif bagi kemajuan pendidikan terutama bagi pendidikan yang berbasih madrasah yang ada di kota Palembang. Penelitian ini bertujuan untuk memahami konsep manajemen mutu dari aspek perencanaan dan pengorganisasian  yang dilaksanakan di MI Hijriyah II Palembang dan menganalisis komitmen civitas madrasah dalam menjaga dan meningkatkan mutu pendidikan. Penelitian ini bersifat evaluatif, yang menginterpretasikan data yang dibuat dan disusun secara menyeluruh dan sistematis yang dirancang untuk menjawab pertanyaan, menguji atau membuktikan hipotesis. Teknik pengumpulan data menggunakan observasi, wawancara dan dokumentasi, kemudian  disajikan secara triangulasi dengan langkah-langkah reduksi data, display data dan verifikasi data, setelah data terkumpul lalu dianalisis dengan teknik deskriptif kualitatif. Untuk menjamin mutu pihak madrasah sebagai lembaga pendidikan agar  dapat mengembangkan berbagai kreatifitas, keilmuan, dan pengetahuan, terutama yang berkaitan dengan kompetensi guru yang meliputi kompetensi pedagogik, kompetensi kepribadian, kompetensi sosial dan kompetensi profesional, maka madrasah perlu membentuk forum komunikasi guru madrasah, sehingga kompetensi guru yang ada di madrasah dapat terus ditingkatkan kualitasnya.
Implementasi Manajemen Kelas dan Dampaknya Terhadap Hasil Belajar Siswa Mata Pelajaran Pendidikan Agama Islam
Authors: Aisah Siti
Published: January 2021

Artikel ini bertujuan untuk mengetahui implementasi manajemen kelas guru PAI di  SMP Palembang dan untuk mengetahui hasil belajar siswa serta dampak manajemen kelas terhadap hasil belajar. Penelitian ini menggunakan pendekatan kualitatif dengan teknik pengumpul data yaitu wawancara, observasi, serta dokumentasi. Kemudian teknik análisis data yang digunakan adalah analisis non-statistik sesuai untuk data deskriptif atau data textular yang tidak diwujudkan dalam bentuk angka. Hasil penelitian menyatakan bahwa implementasi manajemen kelas guru PAI di  SMP Palembang dari hasil observasi kelas sudah baik. Dari beberapa indikator Implementasi Manajemen Kelas hanya 3 (tiga) indikator yang tidak mencapai 100% yaitu pengaturan tata letak meja dan kursi, perhatian pada denah kelas dan penguatan verbal. Hasil Belajar Siswa Mata Pelajaran PAI di SMP Palembang sudah baik. Berdasarkan studi dokumentasi dari 3 (tiga) kali ulangan harian, 100%  guru (4 orang) berhasil meningkatkan nilai rata-rata secara signifikan walaupun ada satu kelas yaitu kelas VII.5 yang pada ulangan harian ke 3 menurun namun demikian tidak ada pengaruhnya jika dilihat dari ketuntasan belajar siswa berdasarkan Kriteria Ketuntasan Minimal (KKM) yang ditetapkan di awal tahun pelajaran. Implementasi Manajemen Kelas Guru berdampak pada hasil belajar siswa khususnya dalam mata pelajaran PAI di SMP Palembang. Semakin baik penerapan manajemen kelas maka akan semakin baik pula hasil belajar.
A Case Report: Probably Concurrent Nasogastric Tube Syndrome and Cerebrovascular Disease in a Postoperative Patient
Authors: YILDIZ Emel , ÖNER Özlem , KOÇAK Özlem , YILDIRIM Nadir
Published: January 2021

Nasogastric tube syndrome (NTS) is characterized by acute upper airway obstruction due to bilateral vocal cord paralysis. Although NTS is a rare cause of vocal cord paralysis, it has the potential of causing serious morbidities even mortality. We here with present a case of concurrent NTS and cerebrovascular disease patient. 73 year-old male was admitted to our university hospital emergency department with acute respiratory distress and stridor days after his cholecystectomy operation and laryngoscopy showed bilateral vocal cord paralysis. The patient was admitted to the intensive care unit (ICU) and urgent tracheotomy was performed. On the day after his discharge from the hospital, his vocal cord movements fully recovered state. Nasogastric tube syndrome can be considered in patient who complains because of acute upper airway obstruction with nasogastric tube inserted. Thinking NTS early may be reducing the complication rate.
Clinical relevance of digital dentistry during COVID-19 outbreak
Authors: Markarian Roberto Adrian , Silva Renan Lucio Berbel da , Burgoa Shaban , Pinhata-Baptista Otavio Henrique , No-Cortes Juliana , Cortes Arthur Rodriguez Gonzalez
Published: January 2021

Aim: To perform a scoped literature review on advantages of digital workflows in dentistry that could be widely adopted to address safety issues raised during the coronavirus (COVID-19) pandemic. Methods: Recent studies on any advantages of digital dentistry – as compared to conventional methods – that could help addressing the new safety demands for dental treatments that emerged due to the current pandemic were included. PUBMED, Embase, and Web of Knowledge databases were searched for eligible articles published in the last five years. The guidelines of PRISMA statement were followed during data extraction and evaluation. Results: The present search strategy yielded 181 publications. After application of exclusion criteria, a total of 34 studies were finally considered eligible to be discussed. Among the most important advantages of digital dentistry that contribute to safety during the current pandemic are: reduced number of clinical appointments required, shorter chairside time, less invasive surgeries and safer procedures. Conclusion: Within the limitations of this study, the findings observed herein suggest that the use of digital workflows in dentistry could lead to increased safety and reduced transmission of COVID-19 during the current pandemic.
Social Currency Is a Personal Entity in the Social Media Platform Domain: Sharing and Caring Phenomenon in E-Commerce Platform
Authors: Khan Jashim , Tao Meng , Alam Faizan
Published: January 2021

Due to the rapid development of information and communication technologies, many daily activities have been merged online, and they have become more flexible and more effective. The massive growth in the number of online users has activated virtual word concepts and created a new phenomenon: the social currency to facilitate e-commerce activities such as buying, selling, and trading on social media. This study aims to recognize how social contacts in 'action' within social media platform permeates sharing and transactions of valuable resources. The active interaction, entertainment, e-WOM traded in social networks are conceptualized as 'social currency' that people owe to each other in social circulation. This study demonstrates the importance of consumers' time-sharing (CTS) concept in the social media environment to earn social reputation (reviews, likes, comments, followers, favorite). A total of eight exploratory semi-structured qualitative depth-interviews were conducted at Dalian China. The data were analyzed using NVivo 12 software. Results suggested that the interaction, entertainment, e-WOM and traded between time and money in social networks are conceptualized as 'social currency' that people owe to each other in social circulation. The current study confirms the importance of the newly developed social currency concept in terms of social circulation.
Quark Cluster Expansion Model for Interpreting Finite-T Lattice Qcd Thermodynamics
Authors: Blaschke David , Devyatyarov Kirill , Kaczmarek Olaf
Published: January 2021

We present a unified approach to the thermodynamics of hadron-quark-gluon matter at finite temperatures on the basis of a quark cluster expansion in the form of a generalized Beth-Uhlenbeck approach with a generic ansatz for the hadronic phase shifts that fulfills the Levinson theorem. The change in the composition of the system from a hadron resonance gas to a quark-gluon plasma takes place in the narrow temperature interval of 150−185 MeV where the Mott dissociation of hadrons is triggered by the dropping quark mass as a result of the restoration of chiral symmetry. The deconfinement of quark and gluon degrees of freedom is regulated by the Polyakov loop variable that signals the breaking of the Z(3) center symmetry of the color SU(3) group of QCD. We suggest a Polyakov-loop quark-gluon plasma model with O(αs) virial correction and solve the stationarity condition of the thermodynamic potential (gap equation) for the Polyakov loop. The resulting pressure is in excellent agreement with lattice QCD simulations up to high temperatures.
Mobility as a Service: A Review on Recent Development and Future Envision
Authors: Xi Haoning
Published: January 2021

Mobility as a Service (MaaS) is an innovative transport concept, anticipated to provide travelers with different kinds of travel services, more sustainable than a private car, in a simpler, packaged way. It combines different transport modes to offer a tailored mobility package, like a monthly mobile phone contract. The rapid development of intelligent transportation system and the shared economy has speeded up the development of MaaS in these years. In this paper, we aim at classifying the existing research on MaaS and the characteristics of MaaS into different categories, in order to answer the following questions after reviewing the existing literature: What is MaaS? Who are the main actors in MaaS? How can MaaS be implemented? Why should it be implemented? Where will MaaS end up in this wave of disruption? When we talk about MaaS, what are we focusing on? What is the future leading frequency of MaaS? Finally, based on the existing literature, we envision the leading future of MaaS.
Future Changes in Precipitation Extremes Over East Africa Based on CMIP6 Projections
Authors: Ayugi Brian , Dike Victor , Ngoma Hamida , Babaousmail Hassen , Ongoma Victor
Published: January 2021

This paper presents an analysis of precipitation extremes over the East African region. The study employs six extreme precipitation indices defined by the Expert Team on Climate Change Detection and Indices (ETCCDI) to evaluate possible climate change. Observed datasets and CMIP6 simulations and projections are employed to assess the changes during the two main rainfall seasons of March to May (MAM) and October to December (OND). The study evaluated the capability of CMIP6 simulations in reproducing the observed extreme events during the period 1995 – 2014. Our results show that the multi-model ensemble (herein referred to as MME) of CMIP6 models can depict the observed spatial distribution of precipitation extremes for both seasons, albeit with some noticeable exceptions in some indices. Overall, MME's assessment yields considerable confidence in CMIP6 to be employed for the projection of extreme events over the study area. Analysis of extreme estimations shows an increase (decrease) in CDD (CWD) during 2081 – 2100 relative to the baseline period in both seasons. Moreover, SDII, R95p, R20mm, and PRCPTOT demonstrate significant OND estimates compared to the MAM season. The spatial variation for extreme incidences shows likely intensification over Uganda and most parts of Kenya, while reduction is observed over the Tanzania region. The increase in projected extremes during two main rainfall seasons poses a significant threat to the sustainability of societal infrastructure and ecosystem wellbeing. The results from these analyses present an opportunity to understand the emergence of extreme events and the capability of model outputs from CMIP6 in estimating the projected changes. More studies are encouraged to examine the underlying physical features modulating the occurrence of extremes incidences projected for relevant policies.
A Multiscale Investigation on the Thermal Transport in Polydimethylsiloxane Nanocomposites: Graphene vs Borophene
Authors: Di Pierro Alessandro , Mortazavi Bohayra , Noori Hamidreza , Rabczuk Timon , Fina Alberto
Published: January 2021

Graphene and borophene are highly attractive two-dimensional materials with outstanding physical properties. In this study we employed a combined atomistic continuum multiscale modeling to explore the effective thermal conductivity of polymers nanocomposites made of PDMS polymer as the matrix and graphene and borophene as nanofillers. We first conduct classical molecular dynamics simulations to investigate the interfacial thermal conductance between graphene/PDMS and borophene/PDMS interfaces. Acquired results confirm that the interfacial thermal conductance between nanosheets and polymer increases from the single-layer to multilayered nanosheets and finally converges. The data provided by the atomistic simulations were then used in the finite element method simulations to evaluate the effective thermal conductivity of polymer nanocomposites at continuum level. We explore the effects of nanofillers type, their volume content, geometry aspect ratio and thickness on the nanocomposites effective thermal conductivity. As a very interesting finding, we show that borophene nanosheets, despite almost two orders of magnitude lower thermal conductivity than graphene, can yield very close enhancement in the effective thermal conductivity in comparison with graphene, particularly for low volume content and small aspect ratios and thicknesses. We conclude that for the polymer-based nanocomposites, significant improvement in the thermal conductivity can be reached by improving the bonding between the fillers and polymer or in another word enhancing the thermal conductance at the interface. By taking into account the high electrical conductivity of borophene, our results suggest borophene nanosheets as promising nanofillers to simultaneously enhance the polymers thermal and electrical conductivity.