bluuebunny/crossref_metadata_2025 huggingface dataset:
Hubungan Dukungan Keluarga dengan Risiko Depresi Postpartum
Authors: Ariyanti Ririn
Published: September 2020

The process of psychological adaptation in a mother has been started since the mother was pregnant. Pregnancy and childbirth are normal events in life, however many mothers experience significant stress in undergoing the process. Family responsibilities will increase with the presence of newborn babies. The encouragement and attention of other family members is positive support for the mother. Postpartum depression is a disorder that is really considered a psychopathology that most often precedes suicide, so it is not uncommon to end in death. Factors that influence the success of the transition to parenthood during the postpartum period are, respond to support from family and friends, The purpose of this study was to determine the relationship of family support with the risk of postpartum depression. This research is a quantitative study, with a cross sectional approach. The sample of this study was postpartum mothers who came to the Sleman Distirct Hospital totaling 110  respondents and the sampling technique uses quota sampling. The result of this study based on the chi squre statistical test results obtained a value (p-value) 0.413. The p-value is greater than α 0.05 so that there is no relationship between family support and the risk of postpartum depression. Postpartum depression is not only influenced by family support but also other factors such as employment, education, age and parity. For next  research, they are expected to do more research by taking other variables that can influence postpartum depression.
Characterization of fatigue in women with breast neoplasia submitted to chemotherapy under the behavioral dimension of the piper scale-revised
Authors:   Cristina Albuquerque Douberin, Liniker Scolfild Rodrigues da Silva, Talita Munique de Melo Rodrigues, Edivaldo Bezerra Mendes Filho, Adriana Maria dos Santos, Thayná da Silva Constantino, Yanna Georgia Crispiniano Ferreira da Silva, Adriane Farias Patriota, Luiz Neves Silveira Filho, Luciana Maria da Silva, Rosimery Rodrigues de Almeida Mendes, Lívia Maria Almeida de Oliveira
Published: September 2020

Objective: The aim of the present study was to characterize fatigue in women with breast cancer who underwent chemotherapy treatment under the behavioral dimension of the Revised Piper Scale. Materials and Methods: This is a descriptive, cross-sectional study with a quantitative approach, conducted at the Outpatient Clinic of a Breast Pathology Clinic of the Pernambuco Cancer Hospital (PCH). The data collection procedure was performed through the Free and Informed Consent Term (FICT) for each of the 317 women and subsequently responded to the collection instrument for the Piper Revised Fatigue Scale. Results: Results show that fatigue interferes with the ability to complete work or school activities significantly in women. Regarding the intensity of stress caused by fatigue, it was found that 117 women (36.9%) answered values equal to or lower than the cutoff point, while 200 women (63.1%) scored values in the range of five to ten. Conclusion: The importance of further studies that address the impact of side effects of chemotherapy treatments on women's lives is highlighted, as it directly and indirectly reflects on the emotional state, favoring increased stress and, consequently, increasing the prevalence of fatigue.
Analysis of the surface porosity of a sintered copper-nickel alloy of dissociated metallic powders
Authors:   Ricardo Cadaval Gonçalves, Diego Rodrigues da Silva, Luciano Volcanoglo Biehl, Jorge Luis Braz Medeiros, José de Souza, Elton Gimenez Rossini, Alexandre Beluco and Alfonso Risso
Published: September 2020

Powder Metallurgy P.M. is a technique that uses the principle of forming metal alloys from the mixture of metal powders to form materials with particular characteristics such as controlled hardness, mechanical strength, and porosity. It is possible to develop this control by varying the parameters, such as temperature and pressure of compaction, reaching the desired levels. This paper evaluated the behavior of surface porosity in the variation of the copper-nickel concentration of dissociated powders, maintaining sintering temperature and compaction pressure constant. To determine the porosity of the copper-nickel alloy, the Scanning Electron Microscope (SEM), ImageJ, and statistical calculations used to generate graphs to represent the results. The results indicated that there was no linear behavior of the surface porosity.
Modeling of Detonation Processes in Propulsion Engine
Authors: Voronin D. V.
Published: September 2020

Numerical modeling of chemically reacting gas flow in the propulsion chamber using theNavier-Stokes equations has been performed. The simplest form of the chamber has been used, when thelast one represents axially symmetrical plane disk. Fuel and oxidant were fed into the chamber separatelywith outflow to the periphery. The directions of fuel and oxidizer jets are not at right angles to the inflowsurface and not parallel one to another to supply better mixing of species. The detonation triggeringdepends on the values of angles between fuel and oxidizer jets. At parallel directions of the jetssignificant part of not reacted gas components leaves the chamber. This type of the propulsion chamber ismore effective than one studied before, because of absence of stagnation zones and good mixing ofspecies before burning. The diameter of the chamber may be done less, since the largest part of fuelreacted at the inlet surface.
RUSSIAN VOCALISM AT VIETNAMESE SPEAKERS: FORMATION OF PRONUNCIATION SKILLS
Authors: Сабитова Регина Рифкатовна , Гатауллина Луиза Кирамовна
Published: September 2020

В работе рассматриваются результаты использования в учебном процессе разработанного и первично апробированного авторами обучающего материала, а также связанных с ним приемов обучения носителей вьетнамского языка русскому как иностранному. Анализ опыта работы по формированию звукопроизношения с опорой на нормативный артикуляционный уклад гласных звуков русского языка позволил не только дать детализированное описание нарушений звукопроизношения в русской речи вьетнамских учащихся, но и уточнить ряд его характеристик. Так, особенности воспроизведения гласных звуков русского языка обусловлены межъязыковой интерференцией, а именно влиянием особенностей вьетнамского вокализма, вьетнамской фонотактики и структурно-функциональных характеристик вьетнамского слога. Изучение особенностей произношения, отражающих звуковой строй родного языка и непосредственно влияющих на освоение русского языка иностранцами, имеет важное практическое значение: оно позволяет преподавателям русского языка как иностранного предвидеть типичные затруднения студентов иностранцев и скорректировать программу обучения. Проведенный эксперимент выявил положительную динамику процесса обучения, продемонстрировав соответствие результатов обучения запланированным на всех этапах ее освоения, высокий уровень развития речевых умений и способности эффективно использовать полученные навыки.

The paper considers the results of employing new drill material developed and initially tested by the authors as well as related techniques in the process of teaching Russian as a Foreign Language to Vietnamese speakers. The undertaken pronunciation training analysis based on standard articulatory structure of Russian vowels contributed to a detailed description of pronunciation faults and to identification of a number of its characteristics. Thus, the peculiarities of pronunciation of Russian vowels are conditioned by interlingual interference, i.e. Vietnamese language vocalism, phonotactics and syllable structure and functioning. The study of pronunciation peculiarities manifesting the sound system of Vietnamese language and directly influencing the study of the Russian language demonstrates the significance of practical application as it allows a teacher of Russian as a Foreign Language to predict typical pronunciation mistakes and to customize a training programme. The conducted experiment revealed positive dynamics of the learning process, demonstrating the conformance of learning outcomes with the planned ones at all teaching stages as well as a high level of development of speech skills and the ability to employ the acquired skills.
SELECTION OF GRAMMAR MATERIAL FOR TEACHING RUSSIAN COMPLEX SENTENCE TO FOREIGNERS
Authors: Цховребов Алан Солтанович
Published: September 2020

В статье представлен анализ актуального вопроса об отборе и организации грамматического материала в аспекте преподавания русского языка как иностранного (РКИ), поскольку в лингвометодике в курсе РКИ важен учет рассмотренных нами принципов, предполагающих функциональный подход к изучению нового языка. Как известно, при отборе грамматического материала для презентации его в иностранной аудитории следует исходить из цели и содержания, признанных основными компонентами в системе иноязычного обучения. В ходе работы мы пришли к следующим результатам: цель обучения грамматике осуществляется более эффективно, если подача грамматического материала соответствует принципу доступности - он понимается и осмысливается без особых усилий; содержание обучения, отражающее его цель, должно включать элементы речевых моделей, коммуникативно-речевых ситуаций, необходимых для формирования знаний, навыков, умений по синтаксическому аспекту в практике преподавания РКИ. Установлено, что коммуникативно-функциональный подход признан ведущим в практике преподавания РКИ, поскольку предполагает единство функционального и структурно-семантического аспектов, что позволит разработать лингводидактическую модель педагогического воздействия с учетом принципов отбора и организации грамматического (синтаксического) материала, которая включала бы сведения о семантически близких синтаксических конструкциях.

The article presents the analysis of the topical issue of selection of grammar material for teaching Russian as a Foreign Language, since it is important to take into account the principles involving functional approach to learning a new language. When selecting grammar material to present it to foreign students, it is necessary to consider the goal and content which are recognized as the main components in the system of foreign language teaching. The author obtained the following result: teaching grammar is more effective if the presentation of grammar material is quite accessible; the training content is to include the speech patterns, speech situations that are necessary to form the knowledge, skills in syntax. The author established that the communicative-functional approach is recognized as the leading one in teaching Russian as a Foreign Language, since it unites functional and structural-semantic aspects. This may help to develop a linguodidactic model of pedagogical influence, taking into account the principles of selection of grammar (syntactic) material, which includes the information about syntactic structures of semantic similarity.
PEDAGOGICAL CLASSES AS SOCIO-CULTURAL AND SOCIO-ECONOMIC PHENOMENON IN HISTORICAL PERSPECTIVE
Authors: Якимов Олег Геннадиевич
Published: September 2020

В статье рассматривается проблема функционирования педагогических классов в современной образовательной практике сквозь призму перспективы и исторической ретроспективы, т. е. в контексте истории развития педагогического образования в России. Цель исследования - научное обоснование педагогических классов как социокультурного и социально-экономического феноменов на основе рассмотрения их в историческом аспекте. Для реализации данной цели автором проводится анализ истории российской практики создания педагогических классов как прообраза современной системы предпрофессиональной подготовки педагогических кадров в системе среднего образования, выявляются социокультурные доминанты и социально-экономические предпосылки организации педагогических классов. Определены этапы становления системы педагогических классов в России. Дана сущностная характеристика педагогических классов, обозначены целевые ориентиры их создания и функционирования в системе профильного обучения в общеобразовательной школе, критериальные особенности, что позволяет рассматривать их как социокультурный и социально-экономический феномен.

The article examines the problem of functioning of pedagogical classes in modern educational practice through in historical perspective in the context of the history of the development of pedagogical education in Russia. The author aims to scientifically justify pedagogical classes as socio-cultural and socio-economic phenomena in historical perspective. To achieve this goal, the author analyzes the history of the Russian practice of creating pedagogical classes, as a prototype of the modern system of pre-professional training of teachers in secondary education; reveals the socio-cultural dominants and socio-economic prerequisites of the organization of pedagogical classes; identifies the stages of formation of the system of pedagogical classes in Russia; provides the essential characteristics of the pedagogical classes, the targets of their creation and functioning in the subject-oriented system in the secondary school, which allows to consider them as socio-cultural and socio-economic phenomenon.
Knowledge, behavior and precautionary measures related to COVID-19 pandemic among the general public of Punjab province, Pakistan
Authors: Haq Shamsheer ul , Shahbaz Pomi , Boz Ismet
Published: September 2020

Introduction: The world is facing a formidable challenge to prevent the COVID-19 global outbreak, and health care systems are under pressure globally. The governments alone cannot prevent the spread of this pandemic without creating a sensitive public opinion and cooperation. Therefore, this study analyzed the knowledge, behavior, and precautionary measures taken by the general public to protect themselves from COVID-19 pandemic.

Methodology: For this purpose, snowball sampling technique was used to collect data from 401 respondents through an online survey in the Punjab province of Pakistan. A Multivariate Probit Model was used to determine the factors affecting the choice of precautionary measures to avoid COVID-19 infection.

Results: Majority of the respondents (58.1%) belonged to urban areas in this study. The urban respondents had higher knowledge about Coronavirus disease as compared to rural respondents. Similarly, the hygienic behavior of urban respondents was better than rural respondents. But unavailability of hygienic material (mask and hand sanitizer) was the main problem faced by the general public. Public transportation was considered the most risk-prone place to COVID-19 by the respondents. Majority of the respondents perceived medium to highest risk from COVID-19, and it was found one of the most influential factors affecting the adoption of precautionary measures along with knowledge of this pandemic.

Conclusions: Government needs to start a comprehensive awareness campaign on social media along with the mainstream media create awareness about the importance of social distancing, washing hands and wearing masks among the general public to enhance knowledge and improve the behavior of the general public about COVID-19.
Can Levamisole be used in the treatment of COVID-19 patients presenting with diarrhea?
Authors: Uyaroğlu Oğuz Abdullah , Güven Gülay Sain , Güllü İbrahim
Published: September 2020

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was first identified in Wuhan, China, on Jan 7, 2020. Over the following months, the virus rapidly spread throughout the world. Coronavirus Disease 2019 (COVID-19) can involve the gastrointestinal tract, including symptoms like nausea, vomiting and diarrhea and shedding of the SARS-CoV-2 in feces. Angiotensin-converting enzyme 2 (ACE2) protein, which has been proven to be a cell receptor for SARS-CoV-2, is expressed in the glandular cells of gastric, duodenal, and rectal epithelia, supporting the entry of SARS-CoV-2 into the host cells. According to the literature, rates of COVID-19 patients reporting diarrhea were between 7 - 14%. Diarrhea in the course of COVID-19 disease can cause dehydration and hospitalization. Although no antiviral drug was specifically designed for the treatment of diarrhea, several molecules could have beneficial effects by reducing viral replication. In this letter, we discussed the Levamisole, which is an anthelmintic agent with immunomodulatory effects, could be used effectively both for antiviral therapy and especially in COVID-19 patients with diarrhea.
A new taxon within Biscutella laevigata L. (Brassicaceae) endemic to calamine areas in southern Poland
Authors: Wierzbicka Małgorzata , Pielichowska Maria , Bemowska-Kałabun Olga , Rostański Adam , Wąsowicz Paweł
Published: September 2020

A new taxon Biscutella laevigata subsp. woycickii (Brassicaceae) is described from southern Poland. The taxon is similar to B. laevigata subsp. gracilis, but differs in having thin, light-green rosette leaves very densely covered by simple non-glandular trichomes, smaller seeds and the ability to tolerate and accumulate high amounts of heavy metals. This new taxon is supported by results of cultivation experiments, as well as genetic and paleobotanical evidence.
Henckelia siangensis (Gesneriaceae): a remarkable new species from Northeast India
Authors: Taram Momang , Borah Dipankar , Taku Ojar , Tag Hui
Published: September 2020

Henckelia siangensis, a new species from Arunachal Pradesh of Northeast India, is described and illustrated here. The new species is remarkably different from all other allied species by its 5-winged calyx and elliptic-ovate calyx segments. It superficially resembles H. calva in glabrous stem and petioles, but differs from it in having persistent bracts, a campanulate 5-winged calyx and a style with glandular indumentum. A detailed morphological description, photographic illustration, and distribution of the new species are presented.
D’une crise l’autre
Authors: Gayraud Jean-François
Published: September 2020

Les crises financière de 2008 et sanitaire de 2020 ne résultent pas de la fatalité mais bien d’actions humaines. Elles illustrent certaines dérives du système international et de la mondialisation. Cupidité corruptrice, criminalisation des économies, propension au mensonge, tendance à oublier les leçons de l’histoire : tels sont quelques-uns des ingrédients de ces crises. La pandémie de COVID-19 risque d’engendrer une accélération des comportements prédateurs, notamment de la Chine.
La démocratie israélienne à l’épreuve de Netanyahou
Authors: Charbit Denis
Published: September 2020

D’avril 2019 à mars 2020, les Israéliens ont dû voter à trois reprises pour désigner leurs représentants à la Knesset. Ce cycle électoral inédit, dû à l’incapacité de la classe politique à s’accorder sur la formation d’un gouvernement, a pris fin avec l’accord conclu entre Benny Gantz et Benyamin Netanyahou. Ce dernier, bien que fragilisé par les affaires, conserve son poste de Premier ministre. Sa longévité est remarquable mais sa pratique brutale de la politique risque de laisser des traces.
The effect of problem based learning by cognitive style on critical thinking skills and student retention
Authors: Arifin Syamsul , Setyosari Punadji , Sa’dijah Cholis , Kuswandi Dedi
Published: September 2020

The purpose of this research is to compare the effectiveness of learning models to develop student critical thinking skills and retention in mathematics through the application of Problem Based Learning (PBL) models and multimedia assisted Direct Instruction (DI) models for students who have different cognitive styles. This research is quasi-experimental type, using non-equivalent control group design. Subject of this research are students in three different senior high school with two class samples in each school. There are 102 students of control class with Direct Instruction learning model by multimedia and 97 students of experiment class with Problem Based Learning model. The instrument of this research are test and questionnaires. The findings of this research are that there are significant differences in student critical thinking skills and retention between groups of student with Field Dependent (FD) and Field Independent (FI) cognitive styles and also between group of student with Direct Instruction model and Problem Based Learning model. Each learning model has interaction with critical thinking skills but not student retention. This research is useful for educators to develop students critical thinking skills processes with an effective learning model approach especially for senior high school students. The educators can know the interaction of cognitive styles with student retention, the extent to which cognitive styles are able to have an impact on student retention. This research provides knowledge an effective learning model to develop critical thinking skills and retention of student both Field Dependent and Field Independent cognitive style. Based on cognitive style, Field Independent students have higher retention and critical thinking skills compared to Field Dependent students.
Wavelet-based systematic risk estimation: application on GCC stock markets: the Saudi Arabia case
Authors: Ben Mabrouk Anouar
Published: September 2020

Systematic risk estimation is widely applied by investors and managers in order to predict risks in the market. One of the most applied measures of risk is the so-called Capital Asset Pricing Model, shortly CAPM. It has been studied empirically focusing on the impact of return interval on the betas. This paper lies in this topic and attempts to estimate the CAPM at different time scales for GCC markets by adapting a wavelet method to examine the relationship between the return of the stock and its systematic risk at different time scales. The main novelty is by applying non-uniform intervals of time. Differently from existing literature, we use random ones. The proposed procedure is acted empirically on a sample corresponding to Saudi Tadawul market as the most important GCC representative market actively traded over the period January 01, 2013 to September 20, 2018, which is characterized by many political, economic and financial movements such as Qatar embargo, Yemen war, NEOM project, 2030 KSA vision and the Arab spring effects. The findings in the present work may be good basis for understanding current and future GCC markets situation and may be thus a basis for investors' decisions in such markets.
La tabula censualis de Pelóu (Grandas de Salime, Asturias: HEp 18, 2009, 21) en el marco del Noroeste hispano: un ensayo de definición como documento de gestión militar
Authors: Rodríguez Fernández Antonio
Published: September 2020

El curso de las excavaciones de 2003-2006 en el castro conocido como “Monte Castrelo” de Pelóu (Grandas de Salime, Asturias) tuvo entre otros sorprendentes hallazgos epigráficos una inscripción que ha sido considerada una posible tabula censualis. Se trata de una lista de unos cincuenta individuos inscrita en pizarra, material común del contexto geológico de la región occidental asturiana. A pesar de su importancia apenas ha recibido un tratamiento monográfico y, en general, ha tendido a admitirse su naturaleza oficial de censo. A partir de las observaciones y reservas argumentadas recientemente por López Barja sobre lo inapropiado de concederle un valor censual de este tipo, el análisis del paisaje y el método comparativo con otras listas abren nuevos caminos de cara a una mejor definición de la naturaleza del documento.
Viñedos italianos en terrazas: una mirada geográfica
Authors: Bonardi Luca , Mastrovito Davide
Published: September 2020

La viticultura, junto con la oleicultura, representa el principal uso productivo de las terrazas de cultivo en Italia. Mediante análisis fotocartográficos, este artículo reconstruye el tamaño y la localización de los principales sistemas de viticultura en terrazas del País. Se analizan sus procesos “genéticos” y las causas de abandono que los han afectado, con consecuencias significativas sobre el régimen hidrogeológico de las laderas en cuestión. Posteriormente, el artículo presenta los límites y las necesidades de las acciones político-territoriales desarrolladas en torno a estas realidades.
The History and Philosophical Changes of the Environmental Reform Movement
Authors: Kern Donald J.
Published: September 2020

This chapter is an account that provides a chronology of the philosophical evolution of the human viewpoint from the perspective of the apex species on the planet. The gradual change from unrelenting growth and production towards one that embraces conservation, resource management, and the protection of populations from the consequences of rapid technological development came to a inflection point in the mid-20th century that resulted in a revised outlook on mankind's obligations to current populations, including other species, future generations, and Earth as a whole. The chapter will highlight the effects of the Industrial Revolution, expansionism, and the exploitation and mismanagement of resources from overuse and overharvesting of Earth's ecosystems. These practices led to tragedies that shifted the paradigm to environmental responsibility and accountability in the 20th century.
An Investigation of the Effects of Integrating Computing and Project- or Problem-Based Learning in the Context of Environmental Sciences
Authors: Moallem Mahnaz , Sterrett William L. , Gordon Christopher Raymond , Sukhera Sohail Masood , Mahmood Aisha , Bashir Ahsan
Published: September 2020

The chapter reports the results of integrating computing, project or problem-based learning and engineering process to address the needs of preparing the STEM workforce in Punjab, Pakistan through transforming STEM teaching and learning processes. It also aimed to build the capacity of the University of Education, Lahore to improve the quality and relevancy of its STEM teacher education programs and its partnership schools. A collaborative team of STEM and STEM education faculty from two U.S. universities and University of Education (UE), Lahore designed, developed, implemented, and evaluated STEM learning units with a specific focus on water and management of natural resources to under-served 6-8 grade students in Pakistan through the integration of project-based and problem-based learning (PBL) and Squeak Etoys, modeling, and simulation tool.
An Integrated STEM Professional Development Initiative for Connecting Environmental Education Across Middle and Secondary Mathematics
Authors: Gardner Kimberly , Worthy Roneisha W. , Glassmeyer David
Published: September 2020

This chapter reports features of a professional development (PD) initiative and results from its underpinning qualitative inquiry. The researchers designed this initiative using the integrated science, technology, engineering, and mathematics (STEM) education framework to help teachers adapt integrated teaching practices and to make connections. Middle and secondary teachers completed 50 hours of training to enhance their content knowledge, to gain understanding of integrated STEM education, to identify and use resources and manipulatives of integrate STEM lessons, and to create lessons for implementation with their students. Data were collected through interviews, audio-visual recordings, and documents from participants. The findings were (1) framing the PD with the integrated STEM education model supports changes to teaching practices; (2) tasks integrating mathematics with EE are compatible integrations that help teachers adapt integrative teaching approaches; and (3) teachers' EE dispositions towards integration improved after the PD, especially as a component of social justice.
Geocast Routing Protocols for Ad-Hoc Networks
Authors: Das Indrani , Das Sanjoy
Published: September 2020

Geocasting is a subset of conventional multicasting problem. Geocasting means to deliver a message or data to a specific geographical area. Routing refers to the activities necessary to route a message in its travel from source to the destination node. The routing of a message is very important and relatively difficult problems in the context of Ad-hoc Networks because nodes are moving very fast, network load or traffic patterns, and topology of the network is dynamical changes with time. In this chapter, different geocast routing mechanisms used in both Mobile Ad-hoc Networks and Vehicular Ad-hoc Networks. The authors have shown a strong and in-depth analysis of the strengths and weaknesses of each protocol. For delivering geocast message, both the source and destination nodes use location information. The nodes determine their locations by using the Global Positioning System (GPS). They have presented a comprehensive comparative analysis of existing geocast routing protocols and proposed future direction in designing a new routing protocol addressing the problem.
Detection of DDoS Attack Using Naive Bayes Classifier
Authors: Akhtar Md Amir Khusru , Kumar Mohit
Published: September 2020

Naive Bayes classifiers are a set of categorization techniques based on Bayes' theorem. It is a collection of algorithms where all these algorithms share a common principle. This chapter presents the detection of DDos attack using scoreboard dataset. The dataset is separated into two parts, that is, feature vector and the reaction vector. Feature vector contains all the rows of dataset in which each vector consists of the value of dependent features such as IP address, port, counter, flag, syncnt, no. of packets, etc. The reaction vector contains the value of class variable (prediction or output) for each row. Result shows the effectiveness of the model in preventing DDoS attack by classifying request.
A SAT-Based Planning Approach for Finding Logical Attacks on Cryptographic Protocols
Authors: Aribi Noureddine , Lebbah Yahia
Published: September 2020

Cryptographic protocols form the backbone of digital society. They are concurrent multiparty communication protocols that use cryptography to achieve security goals such as confidentiality, authenticity, integrity, etc., in the presence of adversaries. Unfortunately, protocol verification still represents a critical task and a major cost to engineer attack-free security protocols. Model checking and SAT-based techniques proved quite effective in this context. This article proposes an efficient automatic model checking approach that exemplifies a security property violation. In this approach, a protocol verification is abstracted as a compact planning problem, which is efficiently solved by a state-of-the-art SAT solver. The experiments performed on some real-world cryptographic protocols succeeded in detecting new logical attacks, violating some security properties. Those attacks encompass both “type flaw” and “replay” attacks, which are difficult to tackle with the existing planning-based approaches.
DecaDroid Classification and Characterization of Malicious Behaviour in Android Applications
Authors: Gupta Charu , Singh Rakesh Kumar , Bhatia Simran Kaur , Mohapatra Amar Kumar
Published: September 2020

Widespread use of Android-based applications on the smartphones has resulted in significant growth of security attack incidents. Malware-based attacks are the most common attacks on Android-based smartphones. To forestall malware from attacking the users, a much better understanding of Android malware and its behaviour is required. In this article, an approach to classify and characterise the malicious behaviour of Android applications using static features, data flow analysis, and machine learning techniques has been proposed. Static features like hardware components, permissions, Android components and inter-component communication along with unique source-sink pairs obtained from data flow analysis have been used to extract the features of the Android applications. Based on the features extracted, the malicious behaviour of the applications has been classified to their respective malware family. The proposed approach has given 95.19% accuracy rate and F1 measure of 92.19302 with the largest number of malware families classified as compared to previous work.
IoT Data Management Using Cloud Computing and Big Data Technologies
Authors: Gupta Sangeeta , Godavarti Raghuram
Published: September 2020

With recent developments in technology, devices like vehicles and home appliances are able to connect to the Internet and communicate, contributing to the Internet of Things. These advancements lead to generation of huge amount of data. This data is needed to derive all the metrics of the IoT devices, which can later be used to make suitable analysis and henceforth take some business decisions. Moreover, these huge amounts of data are very difficult to handle with conventional data warehousing techniques and need a better system. The existing data centers that are located on-site are mostly relational databases which are not scalable to handle increasing needs of storage and compute. These systems are also inefficient to handle different types of data which is mandatory for IoT devices capturing different metrics. In the proposed work, a model is designed to better handle the data generated by IoT devices via Rest API's. Results are presented to depict the functioning of Rest API across all the nodes deployed in a cluster via JSON request. The input to the model is a corresponding JSON payload as a request. The transactions get added to the registered nodes, without a necessity to add payload for the second time. A new batch is created with readings from all the devices. The contents of the entire batch and all systems are obtained while retrieving the results, thus signifying the effectiveness of the proposed work.
A System for Predictive Data Analytics Using Sequential Rule Mining
Authors: Sagare Sandipkumar Chandrakant , Shirgave Suresh Kallu , Kodavade Dattatraya Vishnu
Published: September 2020

In the current scenario of the business world, the importance of data analytics is quite large. It certainly benefits the businesses in the decision-making process. Sequential rule mining can be widely utilized to extract important data having variety of applications like e-commerce, stock market analysis, etc. Predictive data analytics using the sequential rule mining consists of analyzing input sequences and finding sequential rules that can help businesses in decision making. This article presents an approach called M_TRuleGrowth that generates partially-ordered sequential rules efficiently. The authors conducted an experimental evaluation on real world dataset that provides strong evidence that M_TRuleGrowth performs better in terms of execution time.
Osteotécnica: ferramenta de ensino e auxílio na conscientização ambiental
Authors: Rankrape Fabiana , Baungratz Andressa Radtke , Haas Jucelaine
Published: September 2020

A osteotécnica é uma ferramenta de ensino em anatomia e zoologia para a fixação didática de conteúdos e que pode promover a conscientização ambiental, além de a preparação das peças proporcionar o contato com diferentes espécies permitindo ao acadêmico expandir seu conhecimento e desenvoltura no trabalho em equipe. O objetivo do trabalho foi preparar peças anatômicas para o desenvolvimento técnico e cientifico dos acadêmicos, além de servir como material didático e de auxílio na conscientização ambiental. Os animais preparados foram provenientes de atropelamentos e doações do Zoológico de Cascavel, o trabalho foi desenvolvido no Laboratório de Zoologia da Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos. Os animais preparados por meio da osteotécnica foram macaco-prego (Sapajus apela - Illiger, 1815), gavião carcará (Caracara plancus - Miller, 1777) e uma coruja suindara (Tyto furcata - Temminck, 1827). Os espécimes foram acrescentados ao acervo do Laboratório de Zoologia da UTFPR-DV, proporcionando aos alunos e público em geral a oportunidade de conhecer a anatomia de diferentes espécies animais.
CSI: INVESTIGAÇÃO CRIMINAL NO ENSINO DE CIÊNCIAS – ELABORAÇÃO E APLICAÇÃO
Authors: Sanches Santos Thaís , Gonzalez Ribeiro Nathália Cristina Gonzalez Ribeiro
Published: September 2020

O interesse pela investigação criminal vai além das esferas oficiais. Nas últimas décadas, vem se popularizando por meio de séries americanas que utilizam a ciência forense para o entretenimento. A série americana CSI: Crime Scene Investigation, é uma das que fizeram grande sucesso e que podem até mesmo auxiliar em processos de construção e desenvolvimento da aprendizagem, colaborando com a formação dos indivíduos e de suas habilidades críticas. Tendo em vista sua grande popularidade, CSI foi escolhida como instrumento norteador para a realização deste trabalho, cujo objetivo foi aplicar uma atividade investigativa em um museu de ciências abordando de forma diferenciada diversos conceitos científicos. A atividade ocorreu na VI Colônia de Férias do Museu Dinâmico Interdisciplinar da Universidade Estadual de Maringá. Participaram 25 crianças com idade entre oito e doze anos. Utilizando como base o seriado de TV, os participantes foram inseridos na atividade de forma que ocupassem papéis de profissionais da perícia criminal, devendo desvendar os fatos por trás de um crime fictício que ocorreu no museu. Assim, realizaram exames que fazem parte das ciências forenses, como extração de DNA, cromatografia, análise de pegadas e impressões digitais, dentre outros. Práticas de ensino como essa são formas de divulgar conceitos científicos estudados em sala de aula de forma prática e interdisciplinar. Com criatividade e organização, é possível tornar o aprendizado das ciências algo além de decorar difíceis nomes: algo instigante e divertido.
PROPOSTA DE MATERIAL DIDÁTICO PARA O ENSINO DE GENÉTICA
Authors: Trentin Larentis Lucas , Ascari Barboza Lucimara , Da Silva Ana Paula , De Castilhos Ghisi Nédia
Published: September 2020

Apesar dos processos complicados que envolvam o material genético dos seres vivos serem bem conhecidos, sensibilizar os estudantes e tornar esse conteúdo acessível ao seu conhecimento, nem sempre é tão fácil quanto parece. Especialmente, quando se trata de Genética, em geral, os estudantes apresentam duas visões: muito agradáveis ou muito detestáveis. Isso se deve ao caráter complexo e abstrato dessa área. Como uma forma de aproximar os educandos desse assunto, preconiza-se pela utilização de modelos didáticos. Estes materiais são essenciais na superação de certos desafios inerentes ao processo de ensino-aprendizagem. Nesse trabalho, objetiva-se a construção de um modelo didático para a promoção de uma ampla perspectiva sobre a organização cariotípica humana normal e suas variações mais frequentes. O material didático proposto consiste em 66 cromossomos de tecido, produzidos a partir de moldes em papel, e preenchidos com espuma sintética. Os moldes dos cromossomos foram desenhados de modo consonante às representações esquemáticas convencionais, para cromossomos humanos, estabelecidas pela comunidade científica. Com essa abordagem, pretende-se proporcionar aos docentes uma maneira fácil, simples e barata de representação dos cromossomos humanos. Além disso, pretende-se possibilitar aos educandos um melhor entendimento da organização do material genético na sua forma condensada, a compreensão da forma dos cromossomos metafásicos, a assimilação da montagem de cariótipos e a possibilidade de ocorrência de anomalias cromossômicas numéricas. A aplicação deste modelo didático junto a um grupo de estudantes para que seja verificada a sua eficácia é recomendada.
Capsular expansion after ultrasound-guided injection of the hip as parameter of efficacy: description of technique and report of preliminary data
Authors: Corsello Calogero
Published: September 2020

The infiltration procedure with hyaluronic acid has proven to be effective and safe in the integrated multimodal therapy of hip osteoarthritis. Ultrasound represents a diagnostic and therapeutic support to the infiltration procedure; it is hence possible to carry out an appropriate study of the hip in the pre-infiltration phase. Through ultrasound-guiding, the infiltration therapy can be performed with precision, safety, and maximum comfort for the patient. Ultrasound imaging allows us to study the capsular space and the identification of the capsular line, and after the introduction of hyaluronic acid, the capsular expansion of the hip can be a parameter of treatment efficacy. This study evaluates the extent of capsular expansion of the hip in ultrasound after infiltration therapy and its correlation with a positive outcome.
Laparoscopic management of choledochal cyst in children
Authors: Liem Nguyen Thanh , Agrawal Vikesh , Aison Dexter S.
Published: September 2020

Choledochal cyst (CC) is a disease with a strong Asian preponderance. As laparoscopic surgery has become mainstay in its treatment, the experience in these countries has been phenomenal. However, there are many contentious issues related with the laparoscopic management of CC. In this review article, we will try to answer the contentious questions related to the laparoscopic management of CC. The issues related to aetiology, classification, surgical technique, type of biliary anastomosis, intrahepatic stones and malignancy are discussed. We also discuss the current and future considerations of laparoscopic management with reference to it becoming a gold standard. This article describes the standard surgical approach and will discuss its technical nuances. This article will also discuss the outcome of treatment in different settings of low- and middle-income countries based on lessons learnt by the authors from their experience and research.
The technique of fourth jejunal artery-based jejunal conduit for oesophagojejunostomy after thoracolaparoscopic oesophagogastrectomy for locally advanced Siewert type II tumour
Authors: Gopalakrishnan Gunasekaran , Kalayarasan Raja , Gnanasekaran Senthil , Pottakkat Biju
Published: September 2020

Background:

Locally advanced long Siewert type II tumor requires total gastrectomy and D2 lymphadenectomy with distal esophagectomy and mediastinal lymphadenectomy for curative resection. In this scenario, a laparoscopic transhiatal approach is not feasible, and the conventional left thoracoabdominal approach is associated with increased morbidity.

Aims and Objectives:

To describe a novel technique of fourth jejunal artery based jejunal conduit for thoracoscopic esophagojejunostomy after laparoscopic esophagogastrectomy.

Materials and Methods:

The laparoscopic total gastrectomy with distal esophagectomy specimen is extracted through the periumbilical incision. A pedicled jejunal conduit based on the fourth jejunal artery is prepared, and the jejunal conduit is placed in the mediastinum under laparoscopic guidance. Using the thoracoscopic approach in a prone position, additional esophageal clearance and subcarinal lymphadenectomy are performed. Handsewn end to side esophagojejunostomy is performed at the level of the carina.

Results:

Three patients with long Siewert type II underwent this procedure after neoadjuvant chemotherapy. None of the patients had conduit related complications. All three patients had abdominal lymph node involvement and two patients had mediastinal lymph node involvement.

Conclusion:

Pedicled jejunal conduit based on the fourth jejunal artery is safe for intrathoracic anastomosis after minimally invasive esophagogastrectomy for locally advanced Siewert type II tumor.
“Infodemic” in a Pandemic
Authors: Olatunji Olusoji S. , Ayandele Olusola , Ashirudeen Doyin , Olaniru Oluwatosin S.
Published: September 2020

Introduction:

Coronavirus disease 2019 (COVID-19), being the first pandemic to occur in the digital communications era, is rife with “infodemic” of misinformation and conspiracy theories. This article explored popular conspiracy theories about COVID-19 in Nigeria and highlighted the sources of COVID-19 information among Nigerians and perceived trustworthiness of the information sources. It also identified various inaccurate information and conspiracy claims reported by traditional media in Nigeria.

Methods:

This cross-sectional study was carried out among a sample of 736 undergraduate students of a public tertiary institution in Nigeria. A purposive sampling technique was used to recruit participants through social media platforms. Google Forms was used to host an anonymous questionnaire and the link sent to the Facebook and WhatsApp groups of students' associations. Participation was voluntary and anonymous. The data collection was initiated on May 27 and closed on June 5, 2020. Descriptive statistical analyses were conducted on participants' responses.

Results:

COVID-19 infection in Nigeria is seen as “an exaggeration by the government and media,” and as a “Chinese biological weapon.” Traditional media is the most popular source of information about COVID-19. Nigeria Centre of Diseases Control is the most trusted source of COVID-19 information, while information from political leaders and social media was perceived as untrustworthy.

Conclusion:

COVID-19 conspiracy theories were driven majorly on social media, by a dearth of trust in political leadership and “breaking” of inaccurate coronavirus news by traditional media. Stakeholders need to collaborate to debunk conspiracy theories.
Socioeconomic and Demographic Factors Associated with Low Birth Weight in Nepal
Authors: Ahammed Benojir , Maniruzzaman Md. , Ferdausi Farzana , Abedin Md Menhazul , Hossain Md Tanvir
Published: September 2020

Introduction:

Low birth weight (LBW) is an essential component for child mortality, and it also has dangerous effects on the mother's health. This study attempted to estimate the prevalence of the LBW among Nepalese children as well as to identify its socioeconomic and demographic determinants.

Methods:

For this study, 2016 Nepal Demographic and Health Survey data was used; 2,618 women having child were considered as respondents under precise specifications. The LBW of children was defined as birth weight <2500g. Descriptive statistics and multivariate logistic regression model were used to determine the risk factors of LBW based on the adjusted odds ratio (AOR) along with 95% confidence interval (CI) and P value (P < 0.05).

Results:

The overall prevalence of LBW in Nepal was 12.9% (95% CI: 11.6%–14.6%). The results of the multivariate analysis show that twin children (AOR: 22.538; 95% CI: 8.706–58.343) and female children (AOR: 1.444; 95% CI: 1.132–1.841) had a higher risk of LBW. Maternal age was also an important factor affecting LBW as findings suggest that the LBW tend to decrease with an increase of mother's age. Findings also indicate that children of the educated father with higher wealth status, maternal intake of iron tablets/syrup during pregnancy, and families having more than one child were safeguarding against LBW in Nepal.

Conclusion:

Risk factors of LBW are still problematic and unresolved in Nepal. Therefore, the implementation of social as well as health awareness programs, including maternal, neonatal and child health, are expected to introduce to curb LBW.
From Flummoxed to Focused
Authors: Baviskar Mandar , Kharde Anup , Gadekar Shubham , Sheth Shubham , Chordiya Akshata
Published: September 2020

Introduction:

Intern doctors are important in the functioning of a teaching hospital. Their health and sanitation practices can, therefore, influence disease transmission rates.

Methods:

A simultaneous quantitative + qualitative study was conducted on 110 intern doctors working in a rural tertiary care hospital. Percentage values and Chi-square tests were used to compare responses in male and female interns and triangulation-incorporated qualitative inputs.

Results:

Overall, the practices were sound, but lapses in the protocol were reported, especially in areas with higher patient footfall. Females were more likely to follow proper hand hygiene (P = 0.042), use alcohol based sanitizer and keep it on their person (P = 0.017), use gloves as instructed (P = 0.02). And males diligently observed social distancing (P = 0.0001), and followed mobile phone hygiene (P = 0.003).

Conclusion:

Despite the scale of pandemic, interns have tried their best to follow guidelines and commonsense measures. Clear protocols, positive reinforcement, and monitoring can prevent lapses in preventive measures.