bluuebunny/crossref_metadata_2025 huggingface dataset:
Efficient numerical methods for elliptic optimal control problems with random coefficient
Authors: Pang Xiaowei , Song Haiming , Wang Xiaoshen , Zhang Jiachuan
Published: June 2020

Efficient numerical methods for solving Poisson equation constraint optimal control problems with random coefficient are discussed in this paper. By applying the finite element method and the Monte Carlo approximation, the original optimal control problem is discretized and transformed into an optimization problem. Taking advantage of the separable structures, Algorithm 1 is proposed for solving the problem, where an alternating direction method of multiplier is used. Both computational and storage costs of this algorithm are very high. In order to reduce the computational cost, Algorithm 2 is proposed, where the multi-modes expansion is introduced and applied. Further, for reducing the storage cost, we propose Algorithm 3 based on Algorithm 2. The main idea is that the random term is shifted to the objective functional, which could be computed in advance. Therefore, we only need to solve a deterministic optimization problem, which could reduce all the costs significantly. Moreover, the convergence analyses of the proposed algorithms are established, and numerical simulations are carried out to test the performances of them.
A family of $ q $-congruences modulo the square of a cyclotomic polynomial
Authors: Guo Victor J. W.
Published: June 2020

Using Watson's terminating $ _8\phi_7 $ transformation formula, we prove a family of $ q $-congruences modulo the square of a cyclotomic polynomial, which were originally conjectured by the author and Zudilin [J. Math. Anal. Appl. 475 (2019), 1636-646]. As an application, we deduce two supercongruences modulo $ p^4 $ ($ p $ is an odd prime) and their $ q $-analogues. This also partially confirms a special case of Swisher's (H.3) conjecture.
Basic stochastic model for tumor virotherapy
Authors: Phan Tuan Anh ,   Department of Mathematical Sciences, New Mexico State University, Las Cruces, New Mexico, 88001, USA, Tian Jianjun Paul
Published: June 2020

The complexity of oncolytic virotherapy arises from many factors. In this study, we incorporate environmental noise and stochastic effects to our basic deterministic model and propose a stochastic model for viral therapy in terms of Ito stochastic differential equations. We conduct a detailed analysis of the model using boundary methods. We find two combined parameters, one describes possibilities of eradicating tumors and one is an increasing function of the viral burst size, which serve as thresholds to classify asymptotical dynamics of the model solution paths. We show there are three ergodic invariant probability measures which correspond to equilibrium states of the deterministic model, and extra possibility to eradicate tumor due to strong variance of tumor growth rate and medium viral burst size. Numerical analysis demonstrates several typical solution paths with biological explanations. In addition, we provide some medical interpretations and implications.
El manuscrito de elaboración de pólvora de la Casa del Infantado. Un manual técnico de fines del XV e inicios del XVI
Authors: Díaz Hidalgo Rafael Javier
Published: June 2020

El estudio de la pólvora en la Castilla medieval ha contado hasta el momento con un exiguo conocimiento sobre su proceso de fabricación. Con el presente trabajo se pretende dar a conocer y analizar un manuscrito datado en época de los Reyes Católicos y conservado en el Archivo Histórico de la Nobleza, Casa del Infantado, dedicado a la escopeta. Así como aportar luz sobre los procesos técnicos relacionados, refinado del salitre y el azufre y composición del carbón.
Carbonatación de diatomeas y génesis de calizas/dolomías diagenéticas en ambiente continental y marino (Mioceno de Tresjuncos, Cuenca y Níjar, Almería). Un ejemplo de secuestro de CO2 en la Naturaleza
Authors: Bustillo M. A.
Published: June 2020

En el presente trabajo se estudian los procesos de carbonatación de frústulas de diatomeas y la consecuente formación de calizas/dolomías diagenéticas, en estratos de diatomitas marinas (Messiniense, sección de Níjar) y lacustres (Turoliense, sección de Tresjuncos). Se realiza un estudio mineralógico y petrológico para conocer el reemplazo de ópalo A por calcita o dolomita, considerando los factores que favorecen este reemplazo en ambos ambientes. Los datos obtenidos son relevantes para la investigación del uso de diatomitas en la captura y alma­cenamiento de dióxido de carbono a través de su carbonatación.
Los procesos pseudomórficos de carbonatación de las valvas se llevaron a cabo mediante el reemplazo directo del ópalo A por calcita o dolomita y la cementación de la microporosidad. La perfecta reproducción de las valvas indica un mecanismo de reacción con acoplamiento de disolución-precipitación en la interfase de reacción. Se interpreta que la organización de las microesferas de ópalo A, dentro de las valvas, condicionaría la organización de complejos amor­fos de varios iones o nanopartículas de carbonatos amorfos, que posteriormente recristalizarían a calcita o dolomita.
En las diatomitas lacustres, el proceso de carbonatación de las valvas fue favorecido por la materia orgánica proveniente de la gran cantidad de biota (anfibios, crustáceos, insectos, plantas... etc.) que incorporan. En este ambiente, los procesos de sulfato-reducción durante la degradación de la materia orgánica, generaron CO2, que junto con cambios de pH y salinidad facilitaron los reemplazos. Es posible que las carbonataciones de las valvas fueran coetáneas a la precipitación de calcita y dolomita que fosiliza la biota y por lo tanto, diagenéticas tempra­nas. En las diatomitas marinas, el proceso desencadenante del reemplazo de las valvas fue la formación de capas lenticulares y nódulos opalinos, ya que al disolverse los microfósiles calcáreos que las diatomitas incluían, se liberó CO2 y Ca. Pequeñas variaciones de pH en un entorno alrededor de 9, y la presencia de sulfatos facilitarían el reemplazado durante la diagénesis por enterramiento.
Effect of screw-press extraction process parameters on the recovery and quality of pistachio oil
Authors: Fantino V. M. , Bodoira R. M. , Penci M. C. , Ribotta P. D. , Martínez M. L.
Published: June 2020

Pistachio nuts have high economical and nutritional value, mostly due to their elevated oil con­tent (50%), which is composed mainly of oleic and linoleic fatty acids. Box-Behnken experimental designs were performed to optimize the oil extraction by response surface analysis. The independent variables measured were seed moisture content (SMC), restriction die (RD), screw press speed (PS) and pressing temperature (PT), while the response variables considered were oil recovery (OR), fine solid contents in the oil (FSC), oil remain­ing in the cake (OC) and parameters related to oil quality (free fatty acid composition (FFAC, mg KOH/g oil), peroxide value (PV, meq O2/kg oil), K232, K270 and pigment contents, mg/kg oil). Given that the chemical quality of pistachio nut oil pressed under different conditions was not affected, the process response was optimized in order to maximize OR under two pressing temperatures. Therefore, at 75 °C, pistachio oil extraction showed a maximum OR (79.61 g/100 g oil) at 8% SMC, 4 mm RD and 20 rpm SP; while, under cold-pressed conditions, the maximum OR (65.97 g/100 g oil) was achieved at 10% SMC, 4mm RD and 20 rpm SP. It is important to highlight that OR values were higher than the results reported previously and the chemical quality parameters from both oils were in the range of Codex standards for virgin (non-refined) oils (FFAC < 0.31 and PV < 0.33).
Exploring harmony in extra virgin olive oils and vegetables pairings
Authors: Cichelli A. , Cerretani L. , Di Lecce G. , Piochi M.
Published: June 2020

Despite the growing interest in the sensory and healthy properties of extra virgin olive oil (EVOO), the topic of oil-food pairing is practically unexplored. This study systematically explores sensory effects on the flavor and harmony obtained by combining two ingredients (EVOOs and vegetables) and aims to provide practical indications for harmonic oil-vegetable combinations. The approach considered an optimal pairing of five EVOOs combined with five typical raw Italian vegetables characterized by different degrees of bitter­ness (Artichoke, Late Treviso radicchio, Chioggia radicchio, rocket, Early Treviso radicchio). An Index of Disharmony was computed for each pairing, using intensity ratings given by a trained panel that described EVOOs, vegetables and pairings. The results suggested a flavor congruency principle to enhance the oil-pairing harmony. EVOOs with intense green and bitter flavor maximise harmony when combined with very bitter or very pungent vegetables. EVOOs with moderate green flavor and bitterness seemed best paired with vegetables with low/intermediate bitterness.
Butylated methyl caffeate: a novel antioxidant
Authors: Chen Q. Q. , Pasdar H. , Weng X. C.
Published: June 2020

A novel caffeic acid derivative, butylated methyl caffeate (BMC), was synthesized via esterification between butylated caffeic acid (BCA) and methanol. Its antioxidant activity was investigated and compared to TBHQ, caffeic acid (CA), methyl caffeate (MC) and BCA through deep-frying, an oven test in oil-in-water emulsions and DPPH radical scavenging. BMC showed the strongest antioxidant activity among the five anti­oxidants in emulsions and its antioxidant activity was almost as strong as BCA in frying. Its soybean oil-water partition coefficient was 9.18 due to its ester and tert-butyl groups, far greater than those of MC (4.82), BCA (2.41), CA (0.84) and TBHQ (3.22). This meant that it was much more soluble in the lipid phase than the other four antioxidants in emulsions. The DPPH radical scavenging activity of BMC was near TBHQ, lower than the other three because of its steric hindrance and less functional phenolic hydroxyl groups compared to others when their masses were the same.
Integration of Science learning Apps based on Inquiry Based Science Education (IBSE) in enhancing Students Science Process Skills (SPS)
Authors: Baharom Mohd Munir , Atan Noor Azean , Rosli Mohd Shafie , Yusof Sanitah , Abd Hamid Mohd Zolkifli
Published: June 2020

The teaching and learning process no longer has its focus on the classroom. There are various teaching methods which teachers can use these days. However, the traditional, passive and teacher-oriented methods of teaching Science are still being widely used and this has led to the deterioration of students’ interest in Science. Thus, this study was conducted to examine the effectiveness of Inquiry Based Science Education (IBSE) learning through apps in improving the level of students' mastery and achievement in the Science Process Skills (SPS). The study involved a total of 30 Year-6 students from a school in the district of Johor Bahru selected based on the their achievement in the Primary School Achievement Test. It took 5 weeks to complete the study which used quasi-experimental design of time series design followed by multiple repetitions of assessments before the post-test was given to the students. The results of the paired-samples t-test were found to be significant (t = - 11.119, df = 29, p <.05) which showed that, there was a difference in the level of the students’ performance in the pre- and post-tests. The quasi-experimental study of this series of time design used recurring measurements carried out on dependent variables and one-way ANOVA tests for repeated measures were used for the data analysis. The test results of Mauchly's Test of Sphericity showed that, there were significant differences in the three test scores F(1.63,47.4)=344, p<.05. The mean score values for test 2, test 3 and test 4 outweighed the mean of test 1. In addition, the graphical shape of plots profile shows that, teaching activities through apps enhanced students’ Science Process Skills (SPS). Therefore, it can be concluded that, the integration of Inquiry-Based Science Education (IBSE) in Science learning through Apps is capable of improving students’ mastery and achievement in their Science Process Skills (SPS).
Learning Three-Dimensional Shapes in Geometry Using Mobile-Based Augmented Reality
Authors: Rohendi D , Wihardi Y
Published: June 2020

Learning three-dimensional shape of geometry is important for improving students’ spatial abilities. However, the concept of three-dimensional shape is still considered as one of difficult subject matters for teacher to teach and for student to understand in Indonesia. Therefore, it is necessary to find an alternative way that can allow teachers and students to easily understand some concepts of geometry.  In this research, we try to implement mobile-based augmented reality in presenting three-dimensional geometry materials to help teachers and students of junior high school in Bandung, Indonesia.  The results show that by using mobile based augmented reality, teachers can teach three dimensional shape of geometry clearly and students could understand the concept of three-dimensional shape of geometry faster. In addition, students can learn the concept of geometry comprehensively through geometry objects that can be seen from all points of view and students' spatial activities are increased
Edmodo-Based Interactive Teaching Materials as an Alternative Media for Science Learning to Improve Critical Thinking Skills of Junior High School Students
Authors: Wahyuni Sri , Erman Erman , Sudikan Setya , Jatmiko Budi
Published: June 2020

This study aims to develop edmodo-based interactive teaching materials as an alternative media for science learning to improve critical thinking skills of junior high school students. This type of research is Research and Development (R&D) with ADDIE (Analyze, Design, Development, Implementation, and Evaluation) models. The research subjects were 28 students of grade VII in Jember district (Indonesia) who were obtained by cluster random sampling technique. Data were collected using validation sheets, observation sheets, critical thinking skills tests, and students responses questionnaires. Data were analyzed using descriptive analysis, normalized gain (n-gain), and paired sample t-test. The results show that edmodo-based interactive teaching materials can be used as an alternative media for learning science in junior high schools because they meet the following criteria: (1) validity, in terms of the validity assessment score of 3.60 (from the range of scores from 0 to 4) in the criteria are very valid, (2) practicality, in terms of the score of learning feasibility of 3.20 in good criteria, (3) effectiveness, in terms of an increase students critical thinking skills were statistically significant at α = 5% with an average n-gain of .71 in high criteria, and student responses of 83% in very good criteria.
Model-Based Quality Assessment of Internet of Things Software Applications: A Systematic Mapping Study
Authors: Kh. Teeba Ismail , Hamarash Ibrahim I.
Published: June 2020

The Internet of things (IoT) is growing at a fast pace owing to its vast applications in varied fields such as medicine, society, economy, and even the military. This growth cannot continue without establishing high quality. Over the past decade, interest in research for the quality assurance of IoT has gradually grown. However, the discipline is still evolving, and further research is required to investigate the various quality-related aspects. Although assessing the entire system is impractical, to assure the quality of IoT applications, various assessment levels are required. A well-known and established approach to mitigate this difficulty is to model the entire system or a few parts of it for the sake of assessment, which is known as model-based testing. To determine what has been achieved thus far and what is lacking in this direction, this paper presents an extensive study on the use of the model-based approach to assure the quality of IoT applications. The study systematically reviews papers published from 2009 (early publications on IoT) to 2019 that reported the explicit use of models to assess the quality aspects of IoT applications. As a result of an extensive search process, the paper presents the results of scanning and reviewing 390 published papers. Thus far, out of these, 54 studies used the model-based approach to assess at least one quality aspect of an IoT application. In addition to the several relevant research questions that have been addressed in this study, this paper also presents several new insights and approaches for future research.
Practical Insights Into the Group Process
Authors: Rogers Brenda J. , Burghardt Brian
Published: June 2020

The group process can be a highly effective and efficient method to address a problem, especially among persons with different professional backgrounds. Interprofessional collaboration can provide insight and solutions that extend beyond a single professional's knowledge. But collaboration has potential problems too, including determining how to effectively and respectfully work with people with different knowledge, experiences, and authority. This chapter reviews the benefits of group process as well as identifies the detriments of doing so and provides guidance on how to develop a successful group collaboration project.
The Physician Assistant Profession
Authors: Ervie Katherine G. , Banderas Julie Wright
Published: June 2020

In the United States, quality healthcare is an expectation. The accepted healthcare delivery approach relies on interprofessional, collaborative, and person-centered teams. As a result, health professions education must implement education and training to graduate a healthcare workforce that is competent in interprofessional collaboration. Physician assistants (PA) have an important role in the healthcare team. The purpose of this chapter is to provide a historical background to the interprofessional collaborative healthcare team, the formation of interprofessional education (IPE) competencies and partnerships, and the valued role of physician assistants. The need for evidence-based results to guide IPE curricular decisions for PA programs and characteristics of published IPE activities involving PA students are summarized. Potential barriers to successful interprofessional education and resolutions to those challenges are discussed.
Interprofessional Education
Authors: Faisal Izhar , Salam Saima , Arora Manisha
Published: June 2020

With an ever worsening shortage of healthcare workers, there has been a global shift towards strengthening of interprofessional education (IPE). IPE has existed as a powerful tool in developed countries, but in developing countries like India, it is still in its infancy. Several models of interprofessional education exist, yet India lags behind in implementing these models in academic curricula. Rudimentary curriculum, inefficient healthcare system, and maldistribution of health professionals are some of the potential barriers. A complete overhaul of the healthcare system along with progressive strategies of incorporation of IPE needs to be debated, and associated limitations need to be addressed. Adequate institutional support, well-constructed protocols, infrastructural revamp, and change of workplace culture are vital for IPE to succeed and be sustainable. This chapter provides an overview of IPE and collaborative practice in Indian settings and presents an account of an Indian institution utilizing IPP approach and highlights potential challenges in incorporating IPE in the academic curriculum.
Enhancing Entrepreneurship
Authors: Bitzidis Nikolaos G. , Dimitriadis Sotirios G. , Karavasilis George I. , Kehris Evangelos C. , Vrana Vasiliki G.
Published: June 2020

One of the major roles of governments is to create a favorable business environment for fostering entrepreneurial activities, including good infrastructure and a culture that encourages the adoption of technologies. In such a policy context, the Greek National Electronic Public Procurement System (ESIDIS) was developed. The use of ESIDIS is mandatory for the employees, and its success depends on users' satisfaction. The chapter investigates the factors influencing employees' satisfaction when using the system. Perceived usefulness, perceived ease-of-use, perceived risk, and willingness to learn were investigated using empirical research. Structural equation modeling was used for the analysis of the data. Perceived usefulness has the most significant role in determining user satisfaction while risks importance is diminished when users understand the usefulness of the system for their job performance. Managers and policymakers should take these factors into consideration in order to improve users' satisfaction and consequently maximize the added value of the system for the entrepreneurs.
Profiling Small and Medium Enterprises' Innovativeness During Periods of Economic Crisis
Authors: Antoniadis Ioannis , Samara Elpida Tryfon , Karamitsou Thomai
Published: June 2020

The role of innovation as a vital driving force of entrepreneurship and economic development has been widely acknowledged. Especially in an era of economic turbulence, innovation can be seen as the only realistic strategy that can lead enterprises out of the crisis. Based on the innovation taxonomies identified in the Oslo Manual, namely organizational, marketing, process, and product innovation, a survey was carried out in a Greek region adapting the fourth Community Innovation Survey questionnaire in 43 SMEs, capturing the effects of economic recession on the firms' innovativeness, and drawing a profile of the entrepreneurship innovation in the region of Western Macedonia, Greece. By applying a strategic group's approach, the authors come up with some interesting findings concerning the type of SME innovativeness and results of innovation during a period of financial crisis.
Orientation to Organizational Learning and Its Effects on Innovation and Performance
Authors: Palacios Fred Davinson Contreras , Perez-Uribe Rafael Ignacio , Ramírez Iván Rodrigo Vargas , Salcedo-Perez Carlos
Published: June 2020

This research demonstrates how the orientation to organizational learning affects the innovation and performance of the Colombian micro, small, and medium (MSMEs) enterprises, based on a study with 403 Colombian MSMEs, pretending that the results allow the government sector and the academy to design strategies maintain or improve, as appropriate, innovative and learning practices within these organizations. Two hypotheses were raised: 1) learning orientation positively influences business performance and 2) learning orientation positively influences business innovation. The two hypotheses are demonstrated after performing a multiple regression analysis and a broadly significant relationship was evidenced both between the orientation to learning and innovation and in each of the dimensions that make it up: innovation in products/services, processes, and management.
Investigation of Variables Related to Computational Thinking Self-Efficacy Level in Middle School Students
Authors: Yildiz Durak Hatice , Saritepeci Mustafa , Topçu Ahmet , Durak Aykut
Published: June 2020

This study examined the predictiveness of demographic and academic variables and the variables which are in relation with programming on computational thinking (CT) self-efficacy of middle school students who received and who did not receive programming education. Relational screening model was utilized in this study. One-hundred ninety-nine middle school students from 5th and 6th grades in Turkey composed the participants of the research. As the result of the research, it was found that CT self-efficacy level is low. Furthermore, programming experiences of the students are approximately two years. The most important predictor of CT self-efficacy of the students who received programming education is demographic variables. Predictive variables' relative order of importance on CT self-efficacy of the students who received programming education are gender, utilized programming tool, math class grade point average, and attitude towards programming.
The Changing Marketplace
Authors: Mandal Pratap Chandra
Published: June 2020

The marketplace is changing rapidly due to a number of forces, which include technology, globalization, social responsibility, and consumer concerns about sustainability. The new forces result in capabilities of and opportunities for both consumers and companies. The study discusses these capabilities and opportunities and their impact on changing the marketplace. The study also discusses about distribution channels and heightened competition. Distribution channels are getting modified due to retail transformation and disintermediation. Intense competition is being generated between domestic and foreign brands due to globalization. Companies need to beware of these forces, acknowledge the forces, and modify their marketing strategies to keep customers satisfied and to achieve business excellence.
Marketing Realities in the New Environment
Authors: Mandal Pratap Chandra
Published: June 2020

The marketplace is changing rapidly and is different from what it used to be previously. Today's marketplace has access to more information, is more competitive, and customers are more empowered. The change has happened because of several societal forces that have resulted in new consumer and capabilities. The four major forces that are transforming the marketplace include technological changes, globalization, social responsibility, and consumer concerns about sustainability. The study discusses about the changes these forces are bringing in the marketplace. These forces are creating new challenges and opportunities and significantly changing the marketing environment. Companies require acknowledging the dynamic nature of the marketplace, major forces causing the changes, growing with the new marketing realities, and achieving business excellence.
Reliable Weighted Globally Congestion Aware Routing for Network on Chip
Authors: Touati Habib Chawki , Boutekkouk Fateh
Published: June 2020

With the ability to incorporate hundreds of communicating cores on a single chip, thanks to the continuous shrinkage in sizes, communication became of the utmost importance. Consequently, the reduction of transmission delays became unavoidably necessary. All of which is achieved by means of routing algorithms, responsible for selecting the most appropriate routes for data packets, by avoiding congested regions in the network between any pair of source and destination nodes. In this article, two moderately distinct versions in terms of weight distribution of a minimal, fully adaptive, congestion-aware routing scheme in mesh-based network on chip and its accompanying congestion propagation network, are presented. The algorithm does not rely solely on local congestion information nor on irrelevant global information, and provides somewhat a compromise between locally and globally aware routing. The experimental results showcase the proposed scheme's superiority over state of the art NoC routing algorithms.
Incremental Refinement of Page Ranking of Web Pages
Authors: Sharma Prem Sagar , Yadav Divakar
Published: June 2020

Web-based information retrieval systems called search engines have made things easy for information seekers, but still do not provide guarantees about the relevance of the information provided to the users. Information retrieval systems provide the information to the user based on certain retrieval criteria. Due to the large size of the WWW, it is very common that a large number of documents get identified related to a particular domain. Therefore, to help users towards finding the best matching documents, a ranking mechanism is employed by the search engine. In this article, an improved architecture for an information retrieval system is proposed. The proposed system makes a query log for each user query and stores the results retrieved to the user for that query. The system also provides relevant results by analyzing the content of the pages retrieved for the user query.
On the Construction and Application of a Platform-Based Corpus in Tourism Translation Teaching
Authors: Lin Beibei , Yip Po-ching
Published: June 2020

Current studies indicate that corpus-aided translation teaching may greatly improve teaching efficiency and better fulfill the stated teaching aim. On the basis of those findings, this research looks into the design and construction of a platform-based corpus for tourism translation teaching in an attempt to clarify its aims and objectives, data alignment method, data annotation system, function keying-scheme, upgrading and maintenance mechanism, and so on. Taking into consideration the specific features of tourism translation, this article discusses the application of such an enriched corpus, an extension of or addition to the current corpus-based teaching platform Textwells in practical tourism translation classrooms, and tries to work out a preferable teaching mode inspired by task-based teaching and designed to work in close conjunction with the said corpus-based teaching platform, so as to encourage student initiative and foster their participation in learning.
Attention-Sharing Initiative of Multimodal Processing in Simultaneous Interpreting
Authors: Li Tianyun , Fan Bicheng
Published: June 2020

This study sets out to describe simultaneous interpreters' attention-sharing initiatives when exposed under input from both videotaped speech recording and real-time transcriptions. Separation of mental energy in acquiring visual input accords with the human brain's statistic optimization principle where the same property of an object is presented through diverse fashions. In examining professional interpreters' initiatives, the authors invited five professional English-Chinese conference interpreters to simultaneously interpret a videotaped speech with real-time captions generated by speech recognition engine while meanwhile monitoring their eye movements. The results indicate the professional interpreters' preferences in referring to visually presented captions along with the speaker's facial expressions, where low-frequency words, proper names, and numbers gained greater attention than words with higher frequency. This phenomenon might be explained by the working memory theory in which the central executive enables redundancy gains retrieved from dual-channel information.
DISCLOSURE DE ATIVOS INTANGÍVEIS E SUA RELAÇÃO COM O VALOR DE MERCADO NO SETOR DE UTILIDADE PÚBLICA
Authors: Rebouças Lailson da Silva , Santiago Sávio Daniel Oliveira , Ribeiro Antônia Wigna de Almeida , Silva Maria Naiula Monteiro da
Published: June 2020

O objetivo geral do estudo consiste analisar a influência do disclosure de intangíveis no valor de mercado das empresas de utilidade pública da B3. A amostra foi composta por 76 empresas do setor de utilidade pública, sendo analisadas as demonstrações contábeis do ano de 2010 a 2017, com o total de 377 observações. Foi construído um índice de evidenciação dos ativos intangíveis, a partir de um checklist com 27 itens de exigências do CPC 04(R1). Para o alcance do objetivo, os dados foram analisados por meio da análise de regressão de dados em painel, que se utilizou o modelo mínimos quadrados generalizados viáveis (FGLS). Os resultados do estudo indicaram o disclosure apresenta significância de 10% em relação ao QdeTobin. Conclui-se que disclosure agrega valor aos stakeholders por proporcionar mecanismos mais efetivos para transparência da organização, assim, elevando o nível de confiança nas demonstrações contábeis.
A VIOLÊNCIA PSICOLÓGICA E SIMBÓLICA QUE SE TRAVESTE DE RISÍVEL:POP-MANAGEMENT DO AVESSO E GÊNERO COMO DISPOSITIVO DE PODER
Authors: Teixeira Juliana , Schneider Mesquita Juliana , Gomes Costanzi Chiara
Published: June 2020

Este artigo teve como objetivo analisar as intencionalidades estratégicas e as condições sociais de produção dos discursos de uma literatura popular de autoajuda que se relaciona a um conhecimento de Administração, observando suas associações a construções históricas de gestão e de gênero. O estudo qualitativo consistiu na análise dos discursos presentes no livro “Técnicas de RH para selecionar e segurar marido”. O estudo contribui para o campo dos Estudos Organizacionais ao dar continuidade a questionamentos acerca de uma construção acrítica de conhecimento, que analisa como problemáticas as fórmulas prontas que banalizam os conhecimentos em gestão diante da complexidade de organizações e de vidas organizadas. A abordagem teórico-metodológica deste estudo é a análise francesa do discurso. Os principais resultados indicam que as intencionalidades dos discursos envolvem essencializações identitárias, se vinculando a performatividades de gênero que se vinculam a uma literatura popular de gestão que também se baseia em performatividades – repetições normativas – perigosas no sentido de desconsiderar, ao criar modelos de gestão, as próprias diversidades organizacionais e empresariais.
Enhancement of Productivity Using Statistical Quality Control Tools. A Case Study in Eicher Tractor a Unit of TAFE Motors and Tractor Limited Mandideep
Authors: Madke Shubham , Verma P.L , Jain Sanjay
Published: June 2020

Seven quality tools are one method or tool that is often used in problems solving. Seven quality tools are developed and introduced in Japan by some quality originators such as Deming and Juran. Any organizations that cannot manage the quality of its methods and products have a tendency to fall apart. Quality is crucial to sales, price control, productivity, risk control and compliance. Productivity improvement is one of the core strategies closer to production excellence and it is also necessary to achieve correct monetary and operational performance. It enhances client delight and decrease time and cost to expand, produce and deliver merchandise and carrier. Productivity has a positive and big relationship to performance measurement for manner utilization, system output, product costs, and work-in-process stock tiers and on-time shipping. development can be in the form of elimination, correction (restore) of ineffective processing, simplifying the procedure, optimizing the machine, decreasing variant, maximizing throughput, reducing fee, enhancing high-quality or responsiveness and lowering set-up time. Hydraulic systems are widely employed in most of industries like for rollers, cement industries equipment’s etc. used for high force movements to obtain motion in the process. And in the large scale industries all the facilities are provided for maintaining the efficiency of the hydraulic system, since they have investments and experienced personals. In this study elimination of major dismantling at sick bay at Eicher Tractor, Bhopal was done by applying seven quality tools. The main aim of this thesis is to provide an application of seven QC tools to improve the quality level. QC tools are the means for Collecting data, analysing data, identifying root causes and obtaining the results. All of these tools together can provide great process tracking and analysis that can be very helpful for quality improvements. These tools make quality improvements easier to see, implement and track. Findings revealed that 150 pieces of ADDC cylinder checked after action implementation and found no leakage during testing and 129 cylinders fitted in ADDC housing, where no droppage was observed at load testing machine and 86% productivity improved.
Study of Pollutant Degradation Coefficient in Natural Mangrove Forests
Authors: Hanipah Alifatul Haziqah Abu , Guo Zhenren
Published: June 2020

Natural mangrove wetlands located at the transition zone between upland and rivers usually act as an effective pollution buffer due to their function in degrading organic pollutants (BOD) in polluted water. The efficiency of mangrove is often reported based on the percentage of pollutant removals but the associated degradation kinetics have received little attention. This study looks at the pollutant degradation coefficient, k, of mangrove wetlands by on-site experiments at the wetland of the Brunei River, which is dominated by Rhizophera Apiculata and Sonneratia Alba. The mangroves experimented on were enclosed with timber and the pool has retained partially treated wastewater. Water samples were collected at the inlet and in the pool and then tested in several runs of experiments. The typical reaction kinetic model was used to estimate k and it was found that k has a mean and median of 0.43 and 0.47 (day-1) respectively. The value of k was further modified for saline water conditions and it was estimated to be 0.28 (day-1) with salinity of up to 20 ppt. These findings provide an insight of the reactions of pollutants in mangroves and can be used in water quality modelling of tropical rivers with mangrove forests.
Performance of Low Cost 3D Printed Minimum Quantity Lubrication Applicator Using Palm Oil in Milling Steel
Authors: Kamaruddin Abang Mohammad Nizam Abang , Yassin Abdullah , Mohamaddan Shahrol , Rajaie Syaiful Anwar , Mazlan Muhammad Isyraf , Total Steven Joel , Busrah Ridhwan Shah
Published: June 2020

One of the most significant factors in machining process or metal cutting is the cutting tool performance. The rapid wear rate of cutting tools and cutting forces expend due to high cutting temperature is a critical problem to be solved in high-speed machining process, milling. Near-dry machining such as minimum quantity lubrication (MQL) is regarded as one of the solutions to solve this problem. However, the function of MQL in milling process is still uncertain so far which prevents MQL from widely being utilized in this specific machining process. In this paper, the mechanism of cutting tool performance such as tool wear and cutting forces in MQL assisted milling is investigated more comprehensively and the results are compared in three different cutting conditions which is dry cutting, wet cutting (flooding) and MQL. The MQL applicator is constructed from a household grade low-cost 3D printing technique. The chips surface of chips formation in each cutting condition is also observed using Scanning Electron Microscopy (SEM) machine. It is found out that wet cutting (flooding) is the best cutting performance compare to MQL and dry cutting. However, it can also be said that wet cutting and MQL produced almost the same value of tool wear and cutting forces as there is negligible differences in average tool wear and cutting forces between them based on the experiment conducted.
The relationship of quadriceps (Q) angle and body mass index with non-contact anterior cruciate ligament injury among male athletes
Authors: Erandika S. L. Dilini , Jayawardena Ranil
Published: June 2020

Introduction: The aim of this study was to identify the relationship of Quadriceps (Q) angle and Body Mass Index (BMI) with non-contact Anterior Cruciate Ligament (ACL) injury among collegiate male track and field athletes.
Methods: A case control study done at Sports Medicine Unit, National Hospital of Sri Lanka and Ministry of Sports Sri Lanka recruited collegiate male track and field athletes aged 15-25 years with noncontact ACL injury (n=35) as cases and age matched healthy athletes as controls (n=70). Stadiometer, electrical weighing scale and goniometer were used to measure height, weight and Q angle respectively.
Results: Mean age of the cases and controls were 20.63±2.98 years and 20.67±2.98 years respectively. The mean BMI in cases group was 23.79±1.91 kg/m2 and control group was 21.85±1.27 kg/m2 (p<0.05). The mean value of the Q angle in case group was 15.93° ± 1.34 and control group was 14.29° ± 0.84 (p<0.05).
Conclusion: This group of male track and field athletes with non-contact ACL injury had a significantly higher BMI and Q angle compared to the non-injured athletes. These factors have to be considered with other risk factors associated, during the development of management and preventive strategies.
Gender differences in COPD: authors’ reply
Authors: Ambrosino Immacolata , Giannico Orazio Valerio , Politi Cecilia , Moretti Anna Maria
Published: June 2020

Not available
Hypomethylating Agents Use in Acute Myeloid Leukemia: A Single-Center Experience
Authors: Bodepudi Sravan Kumar , Devdas Santhosh Kumar , Maka Vinayak V , Rasmi Palassery , Hiregoudar Sumathi S , Kilara Nalini
Published: June 2020

Context: Acute myeloid leukemia (AML) is a heterogeneous disease. Approximately 80% of older AML patients will die of their disease or its treatment with currently available antileukemic therapy because of the adverse prognostic risk factors. In elderly patients who are not candidates for induction chemotherapy (IC) or who declines IC, the preferred induction regimen is with hypomethylating agents (HMAs). In India, data regarding therapy with HMA, response to therapy and overall survival (OS) is seldom reported. Aims: This study aims to study the response rate and survival of patients treated with HMAs in whom IC was not feasible. Settings and Design: This is retrospective and descriptive single-center study. Subjects and Methods: Data of newly diagnosed AML patients who were unfit for IC and treated with HMA in our institution was collected retrospectively and analyzed. Results: Twenty-three patients received HMAs as a treatment for AML. Eight (34.7%) of 23 patients had initial response to therapy (two [25%] had complete remission [CR], four [50%] had CR with incomplete hematologic recovery, one [12.5%] had partial remission) and one (12.5%) had stable disease. The median progression-free survival and OS observed are 6.06 ± 0.65 months and 7 ± 1.32 months, respectively. Conclusions: HMAs provide an important additional treatment option in newly diagnosed AML patients who are older, with poor performance status, higher comorbidity indices, and who refuse IC.
Letrozole and Palbociclib in Advanced Breast Cancer: Outcome from Cancer Institute, Chennai
Authors: Gnanaguru Vijay , Dhanushkodi Manikandan , Radhakrishnan Venkatraman , Kalaiarasi Jayachandran Perumal , Mehra Nikita , Joshi Archit , Rajan Arun Kumar , Selvarajan Gangothri , Karunakaran Parathan , Ananthi Balasubramanian , Iyer Priya , Senguttuvan Geetha , Rao Manjula , Priya Madhu , Krishnamurthy Arvind , Velusamy Sridevi , Raj Hemanth , Ranganathan Rama , Sundersingh Shirley , Kumar Krishna , Ganesarajah Selvaluxmy , Ganesan Trivadi S , Sagar Tenali Gnana
Published: June 2020

Background: Cyclin-dependent kinase 4/6 inhibitor addition to hormonal therapy has shown to improve the survival of hormone receptor (HR)-positive, HER2-negative advanced breast cancer (ABC). Methods: We retrospectively analyzed untreated patients with HR-positive, HER2-negative ABC, who received letrozole and palbociclib at the Cancer Institute, Chennai, from October 2017 to January 2019. Results: A total of 24 patients were included in this study. The median progression-free survival (PFS) was 18 months, and the median overall survival (OS) had not reached. The 1-year PFS and OS were 73.7% and 89.2%, respectively. The common toxicities were neutropenia and fatigue but none of the patients had febrile neutropenia. Conclusion: Letrozole-Palbociclib is effective with manageable toxicity as the first-line treatment for HR-positive, HER2-negative ABC.
Taxanes – The Backbone of Medical Oncology
Authors: Jose Wesley M
Published: June 2020

Drug development in oncology has witnessed a revolutionary growth from its humble beginning with nitrogen mustard in 1940 to immunotherapy in 1986 (Interferon alpha). The arsenal of cytotoxics is ever increasing, contributing to better survival outcomes and improved quality of life. Over the years, many cytotoxics have fallen out of favor too, due to its side effects and availability of drugs with better efficacy and toxicity profile. Taxane, a microtubule stabilizing agent extracted from the poisonous Yew tree, was discovered in 1964 and came into clinical use in 1992 with its approval for ovarian cancer. This group has grown into a cornerstone of many treatment protocols, spanning multiple tumor types. This review discusses in brief the salient features of cytotoxic agents in this drug group, its history, physico-chemical properties, mechanism of action, pharmacodynamics, and pharmacokinetics. Though the benefits of taxanes are well understood, there are unique problems associated with the use of taxanes and there is an expanding literature on taxane resistance. We briefly look at the resistance mechanisms. There have been significant efforts to circumvent the problems related to conventional taxanes, with an attempt at creating newer carrier molecules and adjunct drugs with taxanes, which is slowly gaining traction in clinical practice.
Deluging Thrombosis: An Unusual Presentation of Acute Promyelocytic Leukemia
Authors: Jandial Aditya , Mishra Kundan , Lad Deepesh , Naseem Shano , Malhotra Pankaj
Published: June 2020

Acute promyelocytic leukemia (APML) patients are prone to thrombosis. However, thrombosis at presentation is rare in APML. Our patient presented with thrombosis and cytopenia, and the clinical diagnosis was of paroxysmal nocturnal hemoglobinuria. However, subsequent peripheral blood smear and bone marrow study confirmed the diagnosis of APML. The patient was successfully managed with anticoagulation, arsenic trioxide, and all-trans retinoic acid.
Ado-Trastuzumab Emtansine – The Monoclonal Drug Conjugate in Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer
Authors: Ganguly Sandip , Ghosh Joydeep , Biswas Bivas , Dabkara Deepak
Published: June 2020

Human epidermal growth factor receptor 2 (HER2)-positive breast cancer comprises around 20%–25% of breast cancers. With the discovery of trastuzumab, there was a marked improvement in the survival of patients with HER2-positive breast cancer both in curative and metastatic settings. However, patients with trastuzumab will eventually progress or develop recurrences. Newer anti-HER2 therapies have evolved to improve the outcome of this group of patients. One of them is monoclonal antibody–drug conjugate which is ado-trastuzumab emtansine.
Zasada dobra dziecka w praktyce orzeczniczej polskich sądów
Authors: Glac Wojciech
Published: June 2020

The Best Interests of the Child Principle in Judicial Practice of Polish Courts – a Review

The best interests principle being one of the Polish family law general clauses consists in respect for child’s subjectivity with special regard to conflict or critical situations in their family. The Polish judicature unanimously indicates that the best interests of the child are superior value requiring extraordinary guarantee from the state. The paper comprises a review of selected court rulings which shape the judicial area the above-mentioned principle is applied in.
Sustainable Tourism Implementation for Small Accommodation Establishments in South Africa
Authors: Glen Nicolette , Mearns Kevin Frank
Published: June 2020

While the tourism industry as an ideal industry to fast track poverty alleviation in South Africa, the uptake of sustainable tourism practices amongst many players, including small accommodation establishments (SAEs) remains a challenge. The lack of awareness of the benefits and value that sustainable tourism practices may bring, is amplified by the absence of appropriate policies, low collaboration levels, a shortage of capacity to implement sustainable tourism practices and a perceived weak business case for sustainable tourism implementation amongst SAE owners and managers. This paper presents a proposed framework that may be used to support the implementation of sustainable tourism practices amongst SAEs. The framework is a flexible, adaptable and scalable tool that assists in communicating a specific approach that could be utilised by role players including SAE owners, public sector entities, private sector business, industry professionals and community members. The essence of the framework is to support the implementation of sustainable tourism practises amongst SAEs, thus enhancing the overall sustainability of the tourism sector while simultaneously addressing the sustainability of the destination.