bluuebunny/crossref_metadata_2025 huggingface dataset:
E-Mail Spam Filtering
Authors: Upadhyay Rohitkumar R
Published: November 2021

Abstract: E-mail is that the most typical method of communication because of its ability to get, the rapid modification of messages and low cost of distribution. E-mail is one among the foremost secure medium for online communication and transferring data or messages through the net. An overgrowing increase in popularity, the quantity of unsolicited data has also increased rapidly. Spam causes traffic issues and bottlenecks that limit the quantity of memory and bandwidth, power and computing speed. To filtering data, different approaches exist which automatically detect and take away these untenable messages. There are several numbers of email spam filtering technique like Knowledge-based technique, Clustering techniques, Learning-based technique, Heuristic processes so on. For data filtering, various approaches exist that automatically detect and suppress these indefensible messages. This paper illustrates a survey of various existing email spam filtering system regarding Machine Learning Technique (MLT) like Naive Bayes, SVM, K-Nearest Neighbor, Bayes Additive Regression, KNN Tree, and rules. Henceforth here we give the classification, evaluation and comparison of some email spam filtering system and summarize the scenario regarding accuracy rate of various existing approaches. Keywords: e-mail spam, unsolicited bulk email, spam filtering methods.
“ÖĞRETMENLER ÇOCUKLAR İÇİN SÖYLÜYOR” PROJESİ ÜZERİNE BİR ANALİZ
Authors: DAĞDEVİREN Mustafa , KARAÖNÇEL Ferdi
Published: November 2021

2000’li yılların başlarında “Playing for Change” ismi ile hayata geçirilen proje zaman içerisinde yaygınlaşarak farklı ülkelerde de görülmeye başlamıştır. Bu proje Türkiye’ye de yapımcı ve yönetmen Fırat Çavaş tarafından “Doğa İçin Çal” başlığıyla toplumsal farkındalık oluşturmak amacıyla yapılmıştır. Proje zaman içerisinde meslek grupları, kurumlar, dernekler vb. yapıların etkinlikleriyle de çeşitlenmiş ve son olarak Millî Eğitim Bakanlığı Öğretmen Yetiştirme ve Geliştirme Genel Müdürlüğü tarafından “Öğretmenler Türkiye İçin Söylüyor” ismi ile başlatılmıştır. Daha sonra proje “Öğretmenler Çocuklar İçin Söylüyor” adıyla güncellenmiştir. “Öğretmenler Çocuklar İçin Söylüyor” adlı projenin görünürlüğünü sağlamak, projede kullanılan işitsel ve görsel ögelerin kültürel bağlamlarla ilişkisini tespit amacıyla etnomüzikoloji disiplini içerisinde gerçekleştirilen bu çalışmada nitel ve nicel araştırma yöntemlerinden oluşan karma desen kullanılmıştır. Elde edilen veriler tablo ve grafikler şeklinde görselleştirilerek yorumlanmıştır. Ülkemizde kimlik temsil etme düşüncesiyle yapılan bu projelerde seçilen eserlerin yörenin dokusunu, kokusunu, yörede müzik kimliğini oluşturan ve yörenin müzik kodlarında bulunan makamsal yapıyı, ritmik yapıyı, sözel yapıyı yansıtacak şekilde belirlendiği ve bu doğrultuda aranjesinin yapıldığı, projenin yapıldığı ilin kültürel ve coğrafi yapısına dikkat edilerek videolarının çekildiği projelerde ortaya çıkan sonuçlar analiz edilmiştir. Ayrıca çalışma sonuçlarında, öğretmenlerin projelere müzikal katkılarının yanında birçok öğretmenin alanı olmasa bile müzik teknolojileri bağlamında katkılarının olduğu ve birçok ilimizde Milli Eğitim Müdürlüklerine bağlı okullarda ses kayıt stüdyolarının olduğu tespit edilmiştir.
Guías de experiencia de usuario para aplicaciones de turismo cultural basadas en realidad aumentada
Authors: Vega Alanis Lidia Micaela , Gaetan Gabriela , Martin Adriana Elba
Published: November 2021

En los últimos años, la Realidad Aumentada se ha aplicado en diferentes ámbitos relacionados a patrimonio cultural, incluyendo ambientes interiores, como museos y galerías y ambientes al aire libre, como guías turísticos. La Realidad Aumentada proporciona una tecnología que aplicada al desarrollo de productos útiles y fáciles de usar, mejora la experiencia de usuario de los turistas. En este trabajo, proponemos un conjunto preliminar de guías de Experiencia de Usuario para aplicaciones móviles de Turismo Cultural, basadas en Realidad Aumentada. La propuesta se basa en: la revisión de estudios existentes sobre Experiencia de Usuario en productos de software para Turismo Cultural con Realidad Aumentada, y también en el análisis de expertos en Experiencia de Usuario. Como trabajo futuro, pretendemos validar el conjunto de guías obtenidas en casos de estudio.
Infodemia e desinformação sobre o “tratamento precoce da covid-19” no Twitter e no Facebook de Bolsonaro
Authors: A. Madacki Aniele C.
Published: November 2021

É consenso que, durante a pandemia do SARS-CoV-2, vivenciamos uma “infodemia”, um excesso de informações circulantes. Pensando especificamente o contexto brasileiro, é possível considerar o presidente Jair Bolsonaro como um agente disseminador da infodemia e de desinformação? Para tal análise fizemos um levantamento das postagens do perfil oficial de Jair Bolsonaro no Twitter e no Facebook referentes às drogas do “kit covid”. Analisamos também os dados de busca relativa sobre esses mesmos termos no Google Trends. O estudo indica que a infodemia e as redes de desinformação são emaranhadas e nem sempre é possível explicá-las a partir de um único ator.
Comunicar la diversidad del quehacer astronómico a partir de las controversias
Authors: Rodriguez Facundo
Published: November 2021

En este trabajo elegimos, a modo de ejemplo, tres controversias que permiten mostrar los debates que se dan al interior de las comunidades astronómicas y en los diálogos de éstas con la sociedad. A partir de la narración y el análisis de los conflictos en torno a la materia oscura, la categorización de Plutón y la instalación del Telescopio de Treinta Metros buscamos explicitar cómo la Astronomía  puede ser comunicada como un terreno de disputas y así dar una imagen más realista de esta ciencia.
Usos y usuarios del Atlas de Riesgos de la Ciudad de México. Un acercamiento a través de la Consulta Pública Digital #CuéntameTuRiesgo
Authors: Ruiz Rivera Naxhelli , Miramontes Téllez Marco Antonio , Fernández y Fernández Daniela , Rosales Tapia Ana Rosa
Published: November 2021

Los Atlas de Riesgo son instrumentos controversiales, que en su creación y uso articulan visiones contrapuestas entre expertos y no expertos, y podrían promover la participación social. La consulta pública #CuéntameTuRiesgo se realizó con el objeto de generar información sobre el uso y recepción del Atlas de Riesgos de la Ciudad de México. La consulta fue implementada a través de una campaña en redes sociodigitales a través de la creación de personajes e historias para generar interacciones con diversos grupos sociales. Los resultados muestran una valoración positiva del instrumento, aunque también se observan importantes problemas de uso, comunicabilidad y accesibilidad.
Evaluación del aprendizaje en los museos y centros de ciencias ¿es posible desde la perspectiva de la neurociencia?
Authors: Vega-Flores German , Macías-Nestor Alba Patricia
Published: November 2021

La evaluación del aprendizaje en los Museos y Centros de Ciencias (MCC) ha generado controversias en cuanto a si es posible registrar por medio de alguna técnica este proceso de construcción personal. Se han documentado una diversidad de metodologías que han dado cuenta de las características del aprendizaje que se construye en estos espacios, recientemente, la neurociencia también hace su aproximación para intentar explicar lo que sucede a nivel cerebral, mediante la evaluación del aprendizaje en este entorno tan particular, sin embargo, aún hay aspectos importantes que considerar.
Entre ‘fake news’ e pós-verdade: as controvérsias sobre vacinas na literatura científica
Authors: Souza Filho Luiz Alberto de , Aguiar Lage Débora de
Published: November 2021

Diante da pandemia do coronavírus, atualmente, as vacinas estão inseridas nas discussões do cotidiano dos cidadãos. Para além das controvérsias desse tema, há uma mobilização de desinformações que coadunam fake news e pós-verdades. Nesse contexto, busca-se com este artigo investigar como a produção do conhecimento científico reconhece as controvérsias e as fake news sobre vacinas, por meio de uma revisão bibliográfica. Entre as pesquisas recentes, existem as que analisam fake news, bem como o ambiente em que circulam e, também, sua checagem, apontando, assim, novos cenários e contextos de investigações.
Two new results about quantum exact learning
Authors: Arunachalam Srinivasan , Chakraborty Sourav , Lee Troy , Paraashar Manaswi , de Wolf Ronald
Published: November 2021

We present two new results about exact learning by quantum computers. First, we show how to exactly learn a k-Fourier-sparse n-bit Boolean function from O(k1.5(log⁡k)2) uniform quantum examples for that function. This improves over the bound of Θ~(kn) uniformly random classical examples (Haviv and Regev, CCC'15). Additionally, we provide a possible direction to improve our O~(k1.5) upper bound by proving an improvement of Chang's lemma for k-Fourier-sparse Boolean functions. Second, we show that if a concept class C can be exactly learned using Q quantum membership queries, then it can also be learned using O(Q2log⁡Qlog⁡|C|)classical membership queries. This improves the previous-best simulation result (Servedio and Gortler, SICOMP'04) by a log⁡Q-factor.
Seguridad y Convivencia Ciudadana en Colombia: Teorías, datos y estrategias aplicadas
Authors: Ibáñez Pedraza Richard Alejandro , Norza Céspedes Ervyn Hermilzon , Torres Preciado Javier Fernando
Published: November 2021

Este libro es el resultado de la metodología adoptada por la Policía Nacional de Colombia, orienta-da hacia la generación de evidencia empírica, modelos relacionales de información, integración de data y doctrina para el diseño e implementación de estrategias en seguridad y convivencia ciudadana. Por lo tanto, la creación y difusión de este documento tiene como principal objetivo la estructuración de conocimiento teórico y práctico tanto para practitioners, policy makers y comandantes de Policía, como principales responsables en las políticas públicas de seguridad en lo local, regional y nacional, además, contribuye a través de casos aplicados en Colombia durante los últimos años, a un debate riguroso sobre seguridad y convivencia.
STUDENTS’ GROWING UNDERSTANDING IN SOLVING MATHEMATICS PROBLEMS BASED ON GENDER: ELABORATING FOLDING BACK
Authors: Patmaniar Patmaniar , Amin Siti Maghfirotun , Sulaiman Raden
Published: November 2021

Students’ previous knowledge at a superficial level is reviewed when they solve mathematical problems. This action is imperative to strengthen their knowledge and provide the right information needed to solve the problems. Furthermore, Pirie and Kieren's theory stated that the act of returning to a previous level of understanding is called folding back. Therefore, this descriptive-explorative study examines high school students' levels of knowledge in solving mathematics problems using the folding back method. The sample consists of 33 students classified into male and female groups, each interviewed to determine the results of solving arithmetic problems based on gender. The results showed differences in the level of students' understanding in solving problems. Male students carried out the folding back process at the level of image having, formalizing, and structuring. Their female counterparts conducted it at image-making, property noticing, formalizing, and observing. Subsequently, both participants were able to carry out understanding activities, including explaining information from a mathematical problem, defining the concept, having an overview of a particular topic, identifying similarities and differences, abstracting mathematical concepts, and understanding its ideas in accordance with a given problem. This study suggested that Pirie and Kieren's theory can help teachers detect the features of students’ understanding in solving mathematical problems.
Organizational and legal problems of the program for the development of genetic technologies implementation
Authors: Zhavoronkova Natalya G. , Agafonov Vyacheslav B.
Published: November 2021

The relevance of this study is determined by the fact that at present legal regulation of genetic research is not comprehensive and does not provide a complete regulation of social relations in the focus. Оne of the factors hindering the development of genetic technologies is the absence of a basic law On genetic technologies. The purpose of the study . The article is devoted to the analysis of modern legal problems and the search for optimal solutions to the organizational and legal problems of the program for the development of genetic technologies implementation. Materials and methods of research . In order to understand modern approaches to relevant problems of improving the organizational and legal mechanism of the program for the development of genetic technologies implementation associated with environmental and biological risks and threats, a comparison of various methods of legal regulation and management, including dialectical, logical, and predictive methods, as well as the method of system analysis, is carried out. Results. Application of these methods allowed to conduct a comprehensive legal analysis of the current legislation and state strategic planning documents, work out a theoretical and legal basis for the development of the basic law On Genetic Technologies and formulate other proposals to improve the current legislation. The core powers of the National (federal) Bioresource Center, the network of federal and regional centers of genetic technologies, as well as the National Center for Biosafety have been identified and grounded by the authors.
He was the best among us. In memory of our friend and colleague - Vitaly Vasilyevich Bezbakh (1947-2021)
Authors: Kuznetsov Mikhail N.
Published: November 2021

It just so happens that you begin to understand the true scale of a scientists personality after his death. Vitaly Vasilievich Bezbakh left us on June 25, 2021, completing his life path in the prime of his talent as a scientist, organizer of science and teacher. The article is dedicated to the memory of Professor Bezbach. The main directions of scientific research, contribution to Russian civil law, arbitration process and private international law are analyzed.
Studying the homogeneity of the coordinate base SSC-2011 at arranging a special-purpose geodetic network
Authors: Karpik A.P. , Obidenko V.I. , Kosarev N.S. , Shendrik N.K.
Published: November 2021

The results of studies on the SSC-2011 coordinate base homogeneity carried out in the process of linking a special-purpose geodetic network’s points to this coordinate system are presented. The research consisted of multiple determinations of the differential geodetic stations (DGS) coordinates in GSK-2011 from different types of the coordinate base of this system. In the first version, they were obtained through their binding to the nearest points of the SGN with known coordinates in the SSC-2011. In the second one, the DGS was linked to SSC-2011 by GNSS vectors to four FAGS points. In the third variant, in order to obtain these coordinates in SSC-2011 the reference were four points of the IGS network. The grid coordinates of the DGS determined in GSK-2011 from the FAGS and IGS points coincided within 1,3 cm. Those of the DGS in SSC-2011, from points of the SGN, differ from the ones obtained in the FAGS and IGS by maximum values up to 21,8 cm, 22,2 cm, 27,2 cm in the abscissa, ordinate, and position, respectively. The derived data on the degree of heterogeneity of the SGN in SSC-2011 enable concluding the impracticality of using it as the coordinate basis of this system at carrying out works, requiring positioning accuracy at the level of several centimeters.
Methodological approach to creating a catalog of test objects for evaluating the space survey materials quality
Authors: Bragina E.V.
Published: November 2021

The necessity of solving a number of methodological tasks is substantiated, aimed at ensuring the objectivity of estimating the visual, measuring and information quality of materials for remote sensing the Earth on the basis of test sites. The results of generalization of the accumulated practical work experience on creating test sections, which are formalized as a methodological approach to creating a priori data base for assessing the space survey materials quality, are presented. As part of the proposed methodological approach to arranging a priori data base for assessing the Earth remote sensing materials quality, a set of issues related to the requirements for selecting test sites, sampling and justification of test objects at sites, determining the characteristics of these objects, the content of the test site, requirements to the site passport and passports of test objects, to the content of the database in the form of a geoinformation system of the test site is reflected. The urgency of developing a network of test sites for control, calibration and estimating the quality of the obtained materials from space survey systems, the main elements of which are typical objects of natural and anthropogenic origin, is substantiated. A set of issues related to maintaining the test sites up-to-date is considered.
Editorial: Public and private sector entities in an institutional perspective
Authors: Samborski Adam
Published: November 2021

The issues of proper formation of institutions are extremely important both at the level of the economy and at the level of individual organizations. These problems are addressed in the papers published in the current issue of the journal „Risk Governance and Control: Financial Markets & Institutions” (volume 11, issue 3).
Functional assay-based classification of PMS2 variants in Lynch Syndrome
Authors: Rayner Emily , Tiersma Yvonne , Fortuno Cristina , Hees-Stuivenberg Sandrine van , Drost Mark , Thompson Bryony , Spurdle Amanda , Wind Niels de
Published: November 2021

The large majority of germline alterations identified in the DNA
mismatch repair (MMR) gene PMS2, a low-penetrance gene for the cancer
predisposition Lynch Syndrome (LS, OMIM 120435), represent variants of
unknown significance (VUS). The inability to assess pathogenicity of
such VUS interferes with personalized healthcare. The complete in vitro
MMR activity (CIMRA) assay, that only requires sequence information on
the VUS, provides a functional analysis-based tool suited for VUS
classification. To derive a formula that translates CIMRA assay results
for PMS2 VUS into the odds of pathogenicity (OddsPath), we used a set of
clinically classified PMS2 variants, supplemented by inactivating
variants generated by an in cellulo genetic screen, as proxies for
pathogenic variants. Validation of this OddsPath revealed very high
predictive values for PMS2 VUS. We conclude that this OddsPath provides
an integral metric that, similar to the other, higher penetrance, MMR
proteins MSH2, MLH1 and MSH6, can be incorporated into the upcoming
criteria for MMR gene VUS classification of the American College of
Medical Genetics and Genomics and the Association for Molecular
Pathology (ACMG/AMP). This will represent a seminal step forward in
enabling personalized healthcare for individuals suspected of LS and
their relatives.
Cutaneous gastrocolic fistula as a complication of percutaneous endoscopic gastrostomy
Authors: Imbeth-Acosta Pedro , Pineda Mario , Mondol-Almeida Zulay , Blanquicett Alejandro , Llanos-Almario Kevin , Avila Maria Cristina Martinez
Published: November 2021

Gastrocolic fistulas represent a serious but rare complication of
Percutaneous endoscopic gastrostomy (PEG). A 90-year-old male with
multiple comorbidities and high preoperative risk develops one. He was
successfully treated with expectant management.
Cost-related Medication Nonadherence among Medicare Beneficiaries with Cardiovascular Disease Risk Factors: The Role of Comprehension of the Medicare Program and its Prescription Drug Benefits
Authors: Park Chanhyun , Chang Angela , Ng Boon , Young Gary
Published: November 2021

RATIONALE, AIMS, AND OBJECTIVES: This study aims to investigate how
reported comprehension of the Medicare program and its prescription drug
benefits affects cost-related medication nonadherence (CRN) among
Medicare beneficiaries with cardiovascular disease (CVD) risk factors.
METHODS: This cross-sectional study used the 2017 Medicare Current
Beneficiary Survey Public Use File data and included Medicare
beneficiaries aged ≥ 65 years who reported having at least one CVD risk
factor (i.e., hypertension, hyperlipidemia, diabetes, smoking, and
obesity) (n=2,821). A survey-weighted logistic model was used to examine
associations between lack of difficulty understanding the Medicare
program and its prescription drug benefits and CRN, controlling for
beneficiaries’ demographic (e.g., age) and clinical characteristics
(e.g, comorbidities). This study further analyzed five subgroups based
on the type of CVD risk factors involved. RESULTS: Among Medicare
beneficiaries with CVD risk factors, 14.4% reported CRN. Medicare
beneficiaries with CVD risk factors who reported difficulty
understanding the overall Medicare program and its prescription drug
benefits were more likely to report CRN, compared to those who reported
easy understanding of the overall Medicare program (OR=1.49; 95%
CI=1.09, 2.04; p<0.001) and its prescription drug benefits
(OR=2.01; 95% CI=1.51, 2.67; p<0.001). Similar results were
obtained for the subgroups with obesity, hypertension, or
hyperlipidemia. CONCLUSIONS: Perceived lack of difficulty understanding
the Medicare Program and its prescription drug benefits has a positive
impact on CRN reduction among Medicare beneficiaries with CVD risk
factors, especially those with obesity, hypertension or hyperlipidemia.
Monitoring and enhancing Medicare beneficiaries’ overall understanding
of the Medicare program may reduce CRN.
Number Manipulation Strategy: A Model of Experiential Instruction and Interest in Arithmetic Learning of Pupils of Lower Basic Level in Enugu State, Nigeria
Authors: Unodiaku Sochima Stanislus
Published: November 2021

The study investigated the efficacy of the number manipulation strategy (NUMAS) as a model of experiential instruction and interest in arithmetic learning for pupils of lower basic levels. The population of the study consisted of 1205 lower basic III level pupils of the 2018/2019 session in Igbo-Etiti Local Government Area (L.G.A.) of Enugu State. A sample of 121 primary five pupils from 4 schools out of 53 primary schools in the study area was randomly sampled. The 121 pupils were composed of 42 males and 79 females used for the study. The study was guided by four research questions and four hypotheses. The hypotheses were tested at a p<.05 level of significance. The instruments used for the study were Arithmetic Test (ART) and Mathematics Interest Inventory Questionnaire (MIIQ) developed by the researcher. The ART and MIIQ instruments were faces validated by experts and their reliability indexes were 0.85 and 0.79 respectively, established using Cronbach alpha and split-half methods respectively. The data obtained with the instruments were analyzed using mean, standard deviations (SD), t-test and analysis of covariance (ANCOVA) statistics. Mean and SD was used in answering the research questions, while t-test and ANCOVA statistics were used in testing the hypotheses at P<.05 level of significance. The findings of the study showed that NUMAS is effective in teaching arithmetic, especially in enhancing the addition and subtraction skills acquisition of the pupils. Gender was found not to be a significant factor of variance in arithmetic achievement when the teaching of arithmetic is NUMAS based. The use of NUMAS was recommended to teachers, lower basic mathematics textbook authors and stakeholders in education, to ensure that NUMAS is adopted and adapted for use in Mathematics classroom instruction and learning.
The Effect of Risk and Uncertainty Factors on Managerial Decision Making
Authors: Raheem Mian Numan , M. Adrees
Published: November 2021

This study evaluated the effect of risk and uncertainty factors on financial decision making. The long-term goals and ways for achievement are constantly attached with uncertainty since we don’t know the circumstances, either positive or negative, which happen later. Uncertainty is a key logical factor that influences the dynamic. The reason for this investigation is to check how risk and factors of uncertainty impact the financial aspects of a firm. The risk factors incorporate, financial risk, market fluctuations hazards, fluctuation of unfamiliar and loan costs. Uncertainty factors incorporate political, monetary and environmental uncertainty. The results reveal that management knowledge and expertise related to these factors are utmost important for effective decision making and sustainable growth.
The Role of Communication in the Process of Forming Market-Oriented Party (Mop): Its Importance and Approaches
Authors: Wei Koay Hean , Mokhtar Khairiah Salwa
Published: November 2021

This paper discusses the role of communication in the process of market-oriented political modeling. Our theoretical framework benefits from the idea of Lees-Marshment’s model, there are three types of parties that can help meet voters’ needs: product-oriented party (POP), sales-oriented party (SOP) and market-oriented party (MOP). The focus here is MOP, which means developing political policies on the ground of voters’ needs to gain from the voter “market”. The MOP approach relies heavily on effective party-voter communication, before, during and after an election. Specifically, the communication aspect in the process of the MOP approach is discussed, which covers political marketing as a social or communication process in image-building and different approaches in such communication. Various communication modes in gathering voter information are compared in terms of advantages and disadvantages, especially in trust-building and two-way (both verbal and non-verbal) communications. Lastly, a section related to political canvassing is also presented.
The Women’s Leadership Gap in Diabetes: A Call for Equity and Excellence. Diabetes 2021;70:1623–1633
Authors: Tse Gary , Liu Tong , Roever Leonardo , Lee Sharen
Published: November 2021

Recently, a series of articles on women’s leadership in diabetes, which reflects the gender disparity in academic medicine, was published in Diabetes (1–3), centered around the article by Dunne et al. (1). The underrepresentation of female talent in the field of clinical medicine has been a longstanding and well-established issue. Women in academia are disproportionately disadvantaged in terms of first author and senior author publications, representation on editorial boards of journals, and leadership roles within academic societies (4). Different strategies that enable leadership development and remove barriers have been proposed to attract and retain female talent (3).
Promoting Gender Equity in Diabetes Research Based on an Alternative Model for Research Mentorship
Authors: Tse Gary , Liu Tong , Roever Leonardo , Lee Sharen
Published: November 2021

Recently, a series of articles on women’s leadership in diabetes, which reflects the gender disparity in academic medicine, was published in Diabetes (1–3), centered around the article by Dunne et al. (1). The underrepresentation of female talent in the field of clinical medicine has been a longstanding and well-established issue. Women in academia are disproportionately disadvantaged in terms of first author and senior author publications, representation on editorial boards of journals, and leadership roles within academic societies (4). Different strategies that enable leadership development and remove barriers have been proposed to attract and retain female talent (3).
Environmental impacts from human activities affect the diversity of the Odonata (Insecta) in the Eastern Amazon
Authors: Bastos R. C. , Brito Joás , Cunha Erlane , Cruz G. M. , Pereira J. L. S. , Vieira J. , Juen Leandro
Published: November 2021

Land use influences the biodiversity of stream systems by changing the chemical composition of the water and the physical structure of the habitat. The present study evaluated the influence of these processes on the diversity metrics of Odonata at regional and local scales, testing the hypothesis that the two odonate suborders Anisoptera and Zygoptera will respond differently to habitat and landscape variables. The study focused on 13 sites in the municipality of Barcarena, Pará, Brazil. We found no significant impact from regional factors, although anisopterans were more affected by water temperature and Habitat Integrity Index (HII). The HII indicated that the local forest was stable, but anisopteran richness was negatively correlated with HII. It was indicating that these species favoured open areas with less riparian cover. Even though zygopterans did not exhibit a similar systematic pattern, the reduced abundance of Chalcopteryx rutilans, a species associated with better-preserved habitats, may indicate that some sites lack the habitat integrity necessary to establish populations of this species. These findings highlight the importance of preserving the riparian forest to maintain the health of the stream systems. We recommend more studies that focus on the broader geographic and temporal scales to account for factors such as the anthropogenic gradient and historical land use patterns.
The Human Respiratory Systems Learning Video: Validity and Feasibility
Authors: Wulandari I Gusti Ayu Yusri , Surya Abadi Ida Bagus Gede
Published: November 2021

This research is motivated by the lack of availability of learning media in the form of learning videos during the COVID-19 pandemic, especially on the science content of the human respiratory system material. This study aims to describe the design and validity of the development of learning videos. This study uses the ADDIE development model (Analyze, Design, Development, Implementation, and Evaluation). The subjects in this study were content experts, learning design experts, learning media experts, and fifth grade elementary school students. The methods and instruments used to collect data in this study used a questionnaire. The data analysis technique used is descriptive qualitative analysis and descriptive quantitative analysis. The results of the analysis of the validity test obtained the following results. content experts got 87.5% results with good qualifications, learning design experts got 95.0% results with very good qualifications, learning media experts got 95.0% results with very good qualifications, and individual trials got 95.8 results % with very good qualifications. Thus, based on this analysis, it can be stated that this learning video product is valid and suitable for use in the science content of the human respiratory system material.
Need Analysis Of “Si Eco” Ethno-Confidence Game for Slow Learner Students
Authors: Ardianti Sekar Dwi , Wanabuliandari Savitri , Wijayanti Esti
Published: November 2021

ABK students are students who have different characteristics from students in general. One of the ABK is a slow learner. Slow learner students have a tendency to not be confident. Therefore, it is necessary to develop the “SI ECO” game to help slow learner students overcome the crisis of confidence. The purpose of this study  to analyze the need for developing media of ethno-confidence “SI ECO” game for slow learner students. This research method is descriptive quantitative method. The subjects of this study were 2 teachers and 26 students. The data in this study are in the form of questionnaires and interviews with teachers and students. Data collection techniques using interviews, questionnaires and document studies. Data analysis was carried out descriptively by percentage. The results of the questionnaire of slow learner students have confidence in the criteria of lack of confidence. The results of the student needs questionnaire showed that there was a need for slow learner students for learning media in the form of games with ethno content that could foster self-confidence. The results of interviews with teachers show that the availability of learning media that incorporates cultural elements is still very limited so that the development of learning media in the form of the ethno-confidence game "Si Eco" is needed for slow learner students. Based on the results of the study, it can be concluded that it is necessary to develop the "SI ECO" ethno-confidence game for slow learner students.
Kontribusi Budaya Sekolah dan Motivasi Kerja terhadap Kinerja Guru
Authors: Utami Gita Setya , Negara I Gusti Agung Oka
Published: November 2021

Perubahan pembelajaran dari tatap muka ke daring telah menyebabkan menurunnya kinerja guru. Penelitian ini bermaksud untuk mengetahui besaran kontribusi budaya sekolah dan motivasi kerja terhadap kinerja guru. Penelitian ini merupakan penelitian ex post facto. Populasi pada penelitian ini adalah guru SD yang berjumlah 32 orang sekaligus sebagai sampel. Teknik pengambilan sampel dengan menggunakan sampling total. Metode pengumpulan data yang digunakan pada penelitian ini yaitu metode kuesioner dan untuk variabel bebas dan pencatatan dokumen untuk variabel terikat. Uji hipotesis menggunakan teknik analisis regresi linier sederhana dan teknik analisis regresi linier ganda setelah uji prasyarat terpenuhi. Hasil penelitian menunjukkan bahwa terdapat kontribusi yang signifikan budaya sekolah terhadap kinerja guru dengan nilai rhitung= 0,735 > rtabel= 0,361 dan kontribusinya sebesar 54%. Terdapat kontribusi yang signifikan motivasi kerja terhadap kinerja guru dengan nilai rhitung = 0,738 > rtabel = 0,361 dan kontribusinya sebesar 54%. Secara bersama-sama terdapat kontribusi yang signifikan budaya sekolah dan motivasi kerja terhadap kinerja guru dengan nilai rhitung= 30,988 > rtabel = 0,361 dan kontribusinya sebesar 68%. Hasil penelitian ini disimpulkan bahwa budaya sekolah dan motivasi kerja berkontribusi secara signifikan berkorelasi terhadap kinerja guru. Implikasi dari penelitian ini adalah lingkungan sekolah memegang peranan penting dalam pembentukan budaya sekolah yang positif dan peningkatan motivasi kerja guru, karena untuk mencapai pendidikan yang berkualitas dan bermutu harus didukung oleh budaya sekolah yang baik.
Kontribusi Kepemimpinan Kepala Sekolah dan Iklim Kerja Terhadap Kinerja Guru
Authors: Angga I Made Dwi , Wiyasa I Komang Ngurah
Published: November 2021

Menurunya kualitas kinerja guru sangat mempengaruhi proses pembelajaran. Salah satu faktor yang dapat mempengaruhi kinerja guru adalah kepemimpinan kepala sekolah dan iklim kerja. Penelitian ini bertujuan untuk mengetahui kontribusi kepemimpinan kepala sekolah dan iklim kerja terhadap kinerja guru. Penelitian ini berjenis penelitian ex-post facto dengan jumlah populasi sekaligus menjadi sampel sebanyak 34 orang. Metode pengumpulan data pada penelitian ini menggunakan kuesioner kinerja guru, kepemimpinan kepala sekolah dan iklim kerja. Data yang diperoleh dianalisis menggunakan teknik analisis statistik inferensial melalui uji-regresi sederhana dan uji-regresi ganda. Sebelum dilakukanya uji-regresi sederhana dan uji-regresi ganda dilakukan terlebih dahulu uji prasyarat yaitu, uji normalitas, uji linieritas, uji multikolonieritas, dan uji heteroskedastisitas. Hasil penelitian yaitu, 1) Kepemimpinan kepala sekolah berkontribusi sebesar 43,95% terhadap kinerja guru, 2) Iklim kerja berkontribusi sebesar 33,49% terhadap kinerja guru, 3) Kepemimpinan kepala sekolah dan iklim kerja berkontribusi terhadap kinerja guru dengan kontribusi sebesar 77,44%. Jadi, kinerja guru dipengaruhi oleh kepemimpinan kepala sekolah dan iklim tempat kerja.
Buku Ajar Berbasis Masalah untuk Mata Pelajaran Dasar Listrik dan Elektonika di SMK
Authors: Firdaus Firdaus , Mukhaiyar Riki
Published: November 2021

Masih rendahnya keterampilan pemecahan masalah di kalangan siswa SMK. Salah satu solusi yang ditawarkan adalah melalukan inovasi dalam bahan ajar yang akan diberikan ke siswa. Oleh karena itu penelitian ini bertujuan untuk mengembangkan buku ajar Berbasis masalah pada Mata Pelajaran Dasar Listrik dan Elektronika untuk siswa Kelas X Jurusan Teknik Instalasi Tenaga Listrik yang valid, praktis, efektif. Jenis penelitian adalah  penelitian  pengembangan menggunakan model 4-D yang terdiri dari tahap pendefinisian (define), perancangan (design), pengembangan (development) dan penyebaran (dessiminate). Tahap define dilakukan analisis kurikulum, analisis materi, dan analisis siswa. Tahap design dilakukan perancangan terhadap buku pembelajaran. Tahap development dilakukan uji validitas melalui lembar validasi buku pembelajaran, uji praktikalitas melalui lembar observasi, angket respon guru dan siswa, uji efektivitas diperoleh dari penilaian hasil belajar. Tahap dessiminate dilakukan penyebaran buku. Buku berbasis masalah termasuk kategori valid ditinjau dari aspek didaktik, konstruk, dan teknis. Buku siswa mata pelajaran Dasar Listrik dan Elektronika berbasis masalah termasuk kategori praktis ditinjau dari aspek penggunaan, penyajian, dan waktu. Buku siswa mata pelajaran Dasar Listrik dan Elektronika berbasis masalah termasuk kategori sangat efektif ditinjau dari aspek motivasi dan hasil belajar siswa. Dengan demikian Buku Berbasis masalah dinyatakan valid, praktis, dan efektif meningkatkan motivasi dan hasil belajar siswa SMK.
Efektivitas Media Pembelajaran Gadumasa Untuk Meningkatkan Hasil Belajar Siswa Sekolah Dasar
Authors: Prasetya Dwi , Koeswanti Henny Dewi
Published: November 2021

Smartphone saat ini sudah merambah ke berbagai kalangan termasuk anak-anak, namun pemanfaatannya tidak banyak ke pembelajaran mengingat konten pembelajaran yang dirancang sesuai kurikulum yang berlalu masih sangat sedikit. Dampaknya adalah siswa memanfaatkan smartphone untuk bermain game online atau menonton video hingga lupa waktu. Pola seperti telah mempengaruhi aktivitas belajar siswa di sekolah sehingga berdampak kurang baik terhadap hasil belajar siswa. Penelitian ini bertujuan untuk mengembangkan media pembelajaran Gadumasa (Game Edukasi Maze Berbasis Android) yang valid dan efektif dalam meningkatkan hasil belajar. Penelitian ini merupakan jenis penelitian dan pengembangan. Model pengembangan yang digunakan adalah model ASSURE. Hasil pengujian menunjukkan bahwa validitas Gadumasa menurut ahli materi, ahli media, dan ahli desain pembelajaran menunjukkan kategori tinggi. Skor yang diperoleh masing-masing ahli secara berurutan yaitu; 80%, 76%, dan 74% sehingga dinyatakan bahwa media pembelajaran Gadumasa valid dari aspek isi, media, dan desain pembelajaran. Uji efektivitas dilakukan melalui pra eksperimen pada satu kelas. Rerata hasil pretest adalah 36,36% sedangkan rerata posttest yakni 81,81%. Dengan demikian ada perbedaan rerata yang signifikan sehingga media Gadumasa dinyatakan efektif meningkatkan hasil belajar tema 6 siswa kelas IV SD.
Meta Analisis Komparasi Efektivitas Model Pembelajaran Jigsaw dan Two Stay Two Stray (TSTS) Ditinjau dari Hasil Belajar Pembelajaran Tematik Siswa SD
Authors: Sari Chintia Wahyuni Puspita , Indarini Endang
Published: November 2021

Proses pembelajaran yang masih di dominasi oleh guru yang bersifat konvensional menyebabkan rendahnya hasil belajar tematik siswa SD karena siswa kurang memahami materi dan kurang termotivasi pada saat proses pembelajaran. Penelitian ini bertujuan untuk menguji komparasi efektivitas model pembelajaran Jigsaw dan Two Stay Two Stray untuk meningkatkan hasil belajar siswa SD dari penelitian eksperimen yang dipublikasikan menggunakan metode meta-analisis. Teknik pengumpulan data dengan mencari jurnal yang relevan dengan judul agar lebih mudah untuk mengumpulkan data yang diperlukan. Berdasarkan penelusuran diperoleh 16 jurnal yang sesuai dengan judul penelitian. Teknik analisis data menggunakan metode kuantitatif. Berdasarkan hasil analisis terbukti bahwa model pembelajaran jigsaw dan Two Stay Two Stray (TSTS) dapat meningkatkan hasil belajar pembelajaran tematik siswa SD. Dilihat dari hasil analisis menggunakan uji ancova diperoleh hasil rata-rata nilai Posstest menggunakan model pembelajaran jigsaw sebesar 79,5450 dan peningkatan hasil belajar sebesar 23,59, sedangkan model pembelajaran Two Stay Two Stray (TSTS) mendapatkan hasil skor posttest sebesar 79,5588 dan peningkatan hasil belajar sebesar 28,835. Sedangkan pada uji efek size dilihat dari Partial Eta Squared menunjukkan hasil 0,423 dan nilai signifikasinya yaitu sebesar 0,042. Dari hasil uji efek size menunjukkan bahwa model pembelajaran Jigsaw dan Two Stay Two Stray (TSTS) berpengaruh sedang terhadap hasil belajar pembelajaran tematik siswa SD.
Pengaruh Model Pembelajaran PBL terhadap Hasil Belajar Senam Lantai Ditinjau dari Minat Belajar Peserta Didik
Authors: Kiabeni Yuliana Yosefina , Kanca I Nyoman , Artanayasa I Wayan
Published: November 2021

Peserta didik mengalami kesulitan dalam melakukan senam lantai. Hal ini disebabkan proses pembelajaran senam lantai masih terpusat pada guru dan rendahnya aktivitas siswa untuk belajar. Tujuan penelitian ini adalah untuk menganalisis model pembelajaran ditinjau dari minat belajar terhadap hasil belajar senam lantai peserta didik kelas V SD. Rancangan penelitian quasi experimental ini dilakukan dengan pendekatan “treatment by level” dengan desain faktorial 2 x 2. Subjek penelitian berjumlah 40 orang yang terbagi dalam 2 kelompok, minat belajar tinggi dan minat belajar rendah. Metode pengumpulan data menggunakan kuesioner. Data dianalisis menggunakan analisis deskriptif dan analisis kovarian (ANCOVA. Hasil analisis data penelitian menunjukkan peserta didik dengan minat belajar tinggi, yang menggunakan model pembelajaran PBL mempunyai hasil belajar senam lantai lebih baik daripada yang menggunakan model pembelajaran konvensional. Dapat disimpulkan bahwa model pembelajaran PBL dapat meningkatkan hasil belajar siswa. Implikasi penelitian ini berdampak pada terciptanya suasana belajar yang menyenangkan, sehingga dapat meningkatkan minat belajar dan berpengaruh pada hasil belajar.
Instrumen Penilaian Hasil Belajar Berbasis Higher Order Thinking Skill Pada Tema Kepemimpinan
Authors: Astuti Ni Komang Gina , Dibia I Ketut , Sudarma I Komang
Published: November 2021

Masih banyaknya guru yang tidak menggunakan instrumen penilaian sesuai dengan syarat instrumen penilaian dan belum mampu membuat instrumen penilaian yang sesuai dengan prosedur. Penelitian ini bertujuan untuk menghasilkan instrumen penilaian hasil belajar kelas VI pada tema kepemimpinan yang berupa soal tes berbasis Higher Order Thinking Skills yang valid dan reliabel. Penelitian ini merupakan penelitian pengembangan dengan model 4D oleh Thiagarajan yang terdiri dari tahap mendefenisikan, tahap merancang, tahap mengembangkan dan tahap menyebarluaskan. Keempat tahap model ini dijadikan pedoman dalam memvalidasi instrumen yang dikembangkan. Data dikumpulkan menggunakan metode tes. Instrumen tes yang digunakan ialah berupa tes objektif untuk menilai hasil belajar siswa Hasil penelitian ini yaitu uji validitas isi sebesar 1.00 termasuk kategori sangat tinggi, uji validitas butir dihasilkan 27 butir tes valid, uji reliabilitas tes sebesar 0,72 termasuk kriteria tinggi, analisis daya beda soal diperoleh 14,8 % soal dengan kriteria kurang baik, 55,5 % dinyatakan cukup baik, 14,8 % terdapat dengan kriteria baik, dan 14,8% dinyatakan sangat baik, analisis tingkat kesukaran diperoleh hasil terdapat 9 soal dengan kategori mudah dan 12 soal dengan kategori sedang kemudian 6 soal dengan kategori sukar, hasil analisis kualitas pengecoh  diperoleh hasil terdapat 85 pengecoh kriteria baik dan 5 pengecoh kriteria kurang baik. Berdasarkan hasil penelitian, dapat disimpulkan bahwa instrumen yang penilaian hasil belajar tema 7 berbasis Higher Order Thinking valid dan layak digunakan sebagai instrumen penilaian pada siswa.
Implementasi Quiz Interaktif dengan Software Mentimeter dalam Meningkatkan Hasil Belajar
Authors: Andrini Vera Septi , Pratama Hendrik
Published: November 2021

Hasil belajar mahasiswa rendah. Hal ini disebabkan oleh penerapan model pembelajaran yang kurang inovatif di masa pandemi Covid-19 saat ini. Tujuan penelitian ini adalah menganalisis penggunaan kuis interaktif menggunakan aplikasi mentimeter dalam meningkatkan hasil belajar. Jenis penelitian yang digunakan adalah komparatif. Jenis desain penelitian yang diguakan adalah one group pretest-posttest design.  Sampel dalam penelitian ini berjumlah 25 mahasiswa  semester III yang menempuh mata kuliah Mekanika. Teknik pengumpulan data yang digunakan adalah tes, angket, dan dokumentasi. Analisis data penelitian menggunakan uji statistik yang digunakan yaitu Uji T Paired. Hasil penelitian menunjukkan ada perbedaan hasil belajar mahasiswa antara sebelum dan sesudah perlakuan. Rata-rata hasil belajar jika berdasarkan nilai postest sebesar 78,00 lebih besar daripada nilai pretest sebesar 68,00. Pengunaan aplikasi mentimeter sebagai kuiz interaktif membuat mahasiswa lebih termotivasi dalam mengikuti proses pembelajaran. Antarmahasiswa menunjukkan adanya kompetisi yang positif setiap diadakan kuis. Implikasi penelitian ini diharapkan dapat meningkatkan proses pembelajaran menjadi lebih menyenangkan layaknya bermain menggunakan smartphone.
Metode Pembelajaran Numbered Head Together secara Online terhadap Hasil Belajar IPA Siswa Kelas IV
Authors: Anggrainy Puspitasari Tri , Ahmad Mubarak
Published: November 2021

Pelaksanaan pembelajaran pembelajaran jarak jauh ataupun online berlangsung menimbulkan berbagai kendala, di antaranya koneksi internet yang kurang menunjang, rendahnya hasil belajar, dan kesulitan dalam belajar IPA juga disebabkan oleh metode penyampaian guru dalam mengelola pembelajaran yang kurang efektif. Penelitian ini bertujuan menganalisis pengaruh metode pembelajaran Numbered Head Together secara online terhadap hasil belajar IPA siswa kelas IV. Penelitian ini menggunakan jenis penelitian kuantitatif, metode Quasi Experiment dengan Non-Equivalent Control Group Design. Pengambilan sampel menggunakan purposive sampling dengan sampel sebanyak 62 siswa. Subjek penelitian ini terdiri dari dua kelas yaitu kelas kontrol berjumlah 31 siswa dan kelas eksperimen berjumlah 31 siswa. Metode pengumpulan data memakai pre-test serta post-test dengan instrumen penelitian 25 soal pilihan ganda. Metode analisis data memakai uji normalitas Kolmogorov-Smirnov dan uji homogenitas Levene test serta uji hipotesis memakai uji independent sample t-test. Hasil penelitian menunjukkan  thitung = 7,419 > ttabel = 2,000, sehingga tolak H0 terima H1. Maka, ada pengaruh yang signifikan metode pembelajaran Numbered Head Together secara online  memberikan pengaruh terhadap hasil belajarIPA siswa kelas IV.
Belajar Sejarah Dengan E-Learning Berbasis Discovery Learning
Authors: Nurcholif Dziky Muhamad , Suartama I Kadek , Sukmana Adrianus I Wayan Ilia Yuda
Published: November 2021

Adanya Covid-19 mengharuskan proses pembelajaran dilakukan secara online membuat proses pembelajaran tidak efektif. Penelitian ini bertujuan untuk mengembangkan desain e-learning berbasis discovery learning pada mata pelajaran Sejarah. Penelitian ini merupakan penelitian pengembangan, dengan menggunakan model pengembangan ADDIE. Subjek penelitian yaitu 1 ahli mata pelajaran, 1 ahli desain pembelajaran, 1 ahli media pembelajaran, 3 siswa uji perorangan, dan 9 siswa uji kelompok kecil. Metode pengumpulan data yang digunakan adalah metode pencatatan dokumen dan metode kuesioner. Penelitian pengembangan ini menggunakan dua jenis metode analisis data, yaitu analisis deskriptif kualitatif dan analisis deskriptif kuantitatif. E-learning berbasis discovery learning ini dinyatakan valid dengan hasil review ahli isi mata pelajaran yang menunjukkan e-learning berbasis discovery learning mendapatkan predikat sangat baik (91%). Hasil review ahli desain pembelajaran menunjukkan bahwa e-learning berbasis discovery learning ini mendapatkan predikat baik yaitu (83%).  Hasil review dari ahli media pembelajaran menunjukkan e-learning berbasis discovery learning ini mendapatkan predikat sangat baik (92%). Hasil review dari uji perorangan menunjukkan bahwa e-learning berbasis discovery learning ini mendapatkan predikat sangat baik yaitu (95%). Hasil review dari uji kelompok kecil menunjukkan e-learning berbasis discovery learning ini mendapatkan predikat sangat baik (93%). Semua hasil ini menunjukan bahwa e-learning berbasis discovery learning mampu meningkatkan minat belajar siswa pada mata pelajaran Sejarah, sehingga konten e-learning berbasis discovery learning efektif digunakan dalam proses pembelajaran.