bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Antiviral Activity of Andrographolide, the Active Metabolite from Andrographis paniculata (Burm. f.) Wall. ex Nees. against SARS-CoV-2 by Using Bio- and Chemoinformatic Tools
Authors: PITAKBUT Thanet 
Published: November 2020

Due to the severe acute respiratory syndrome coronavirus 2 or SARS-CoV-2 outbreak, the virus has been wildly spread throughout the world and the number of infected patients has rapidly increased. More importantly, neither the official drug treatment nor the vaccine has been officially offered. These have considerably increased the public concerns internationally and nationally. Recently, there has been one question raised in the Thai society; “Could a common Thai herbal medicine namely Andrographis paniculata be used against SARS-CoV-2 infection?”. It is well-known that the plant has antiviral properties against wild ranges of viruses and the active metabolite is andrographolide. To date, there have only been a few studies investigating the anti-SARS-CoV-2 activity from andrographolide. To provide a better understanding, this study was conducted by applying the advanced techniques in both computational biology and chemistry to evaluate the anti-SARS-CoV-2 potential of andrographolide. In this study, andrographolide was tested against two key enzymes of SAR-CoV-2 namely 3C main proteinase and RNA dependent RNA polymerase. The result here indicated that andrographolide could only inhibit the SARS-CoV-2 3C main proteinase as strong as lopinavir (the standard medicine), which has been recommended as the drug of choice to treat SARS-CoV-2 patient.
La víctima como sujeto político. Una aproximación antropológica al movimiento de víctimas y afectados por el conflicto armado interno peruano
Authors: Tejero Tabernero Laura 
Published: November 2020

El objetivo de este artículo es el de aportar algunas reflexiones en torno a las condiciones sociales, políticas y culturales que habrían posibilitado –y condicionado– el surgimiento y desarrollo de la militancia del colectivo de víctimas de conflicto armado en el contexto específico que se abre en Perú con el establecimiento de la Comisión de la Verdad y la Reconciliación (CVR) en el año 2001. A través de una mirada etnográfica, se prestará especial atención a las formas en las que, a través de la interacción con distintos agentes sociales claves (como son las ONG de derechos humanos), las distintas organizaciones de víctimas en el país van incorporando los marcos legales y morales que se les hacen disponibles a través del paradigma de la justicia transicional y los derechos humanos para dar cuenta de sus experiencias de victimización y violencia y para reivindicar sus derechos de acceso a la verdad, la justicia y la reparación. En definitiva, se pretenderá dar cuenta del proceso a través del cual la víctima deviene sujeto político en el contexto específico peruano, recurriendo a diferentes estrategias y recursos de movilización.
Cashfields shopping centre: Christchurch
Authors: Taylor J. M. 
Published: November 2020

The building was originally designed as a department store for the D. I. C. Limited and was constructed in three stages commencing in the early 1890's. It is of 3 storeys with a basement over part of the area. Walls are of brick masonry, and floors and roof are timber framed on steel beams and cast iron columns.
The general layout of the structure is shown in fig. 1. The building extends the full depth of the city block - some 101m - with width 21m (approx.) at Cashel Street, and 37m (approx.) at Lichfield Street. Storey heights are 5.5m ground  to first floor, 4.8m first to second and  4.0m second floor to roof. Parapets  are 1.2m high at side walls and up to  3.0m high at the street frontages,
The building was generally in sound condition, with no sign of any significant deterioration or movement in the main structural elements. Floor ties to the side walls could be observed externally  at all levels, although the spacing at the second floor and roof was sparse  and irregular.
Tamás Varga’s reform movement and the Hungarian Guided Discovery approach
Authors: Gosztonyi Katalin 
Published: November 2020

This paper presents Tamás Varga’s work focusing especially on the Hungarian Complex Mathematics Education reform project led by him between 1963 and 1978 and the underlying conception on mathematics education named “Guided Discovery approach”. In the first part, I describe Varga’s career. In the second part, I situate his reform project in its international and national historical context, including the international “New Math” movement and the “Guided Discovery” teaching tradition, something which is embedded in Hungarian mathematical culture. In the third part, I propose a didactic analysis of Varga’s conception on mathematics education, underlining especially certain of its characteristics which can be related to Inquiry Based Mathematics Education. Finally I briefly discuss Varga’s legacy today.
Subject Classification: 97-03, 97B20, 97D20, 97D40, 97D50
Rational errors in learning fractions among 5th grade students
Authors: Karika Tímea 
Published: November 2020

Our paper focuses on empirical research in which we map out the errors in learning fractions. Errors are often logically consistent and rule-based rather than being random. When people face solving an unfamiliar problem, they usually construct rules or strategies in order to solve it (Van Lehn, 1983). These strategies tend to be systematic, often make ‘sense’ to the people who created them but often lead to incorrect solutions (Ben-Zeev, 1996). These mistakes were named rational errors by Ben-Zeev (1996). The research aims to show that when learning fractions, students produce such errors, identified in the literature, and that students who make these kinds of mistakes achieve low results in mathematics tests. The research was done among 5th-grade students.
Subject Classification: 97C10, 97C30, 97C70, 97D60, 97D70, 97F50
Nim like game and a machine that plays it
Authors: Esclafit Pierre , Modeste Simon , Saby Nicolas 
Published: November 2020

The purpose of this work is to take a didactic look at a learning situation located at the interface between mathematics and computer science. This situation offers a first approach to the concept of artificial intelligence through the study of a reinforcement learning device. The learning situation, inspired by the Computer Science Unplugged approach, is based on a combinatorial game, along with a device that learns how to play this game. We studied the learning potential when the human players face the machine. After an a priori analysis using the Theory of Didactic Situations (TDS), we conducted a pre-experiment in order to strengthen our hypotheses. In this article, we will focus on the analysis of the didactic variables, the values we have chosen for these variables and their effects on students’ strategies.
Subject Classification: 97D99, 97K99, 97P80
Is it possible to develop some elements of metacognition in a Mathematics classroom environment?
Authors: Kiss Márton , Kónya Eszter 
Published: November 2020

In an earlier exploratory survey, we investigated the metacognitive activities of 9th grade students, and found that they have only limited experience in the “looking back” phase of the problem solving process. This paper presents the results of a teaching experiment focusing on ninth-grade students’ metacognitive activities in the process of solving several open-ended geometry problems. We conclude that promoting students’ metacognitive abilities makes their problem solving process more effective.
Subject Classification: 97D50, 97G40
Willy Servais and Tamás Varga A Belgian Hungarian perspective on teaching school mathematics
Authors: De Bock Dirk 
Published: November 2020

Willy Servais and Tamás Varga had a major influence on the development of mathematics education during the 1960s and 1970s, both in their home countries and internationally. In 1971 they jointly published Teaching School Mathematics–A Unesco Source Book, a review of curriculum reforms that were under way in different parts of the world. The book, presenting several modern syllabuses as well as examples of classroom techniques and segments of teacher-student dialogues, provided an often consulted guide to the field of mathematics education. We re-read this book and in this way acquire a unique insight into the modernization efforts of school mathematics during the 1960s and early 1970s. We take this opportunity to discuss the sometimes partly divergent views of Servais and Varga on modern mathematics education as reflected in this book.
Subject Classification: 97-03
Potential, actual and practical variations for teaching functions: cases study in China and France
Authors: Zhang Luxizi 
Published: November 2020

This contribution is based on two major hypotheses: task design is the core of teachers’ work, and variation is the core of task design. Taking into account variation in task design has a profound theoretical foundation in China and France. Developing my PhD with two co-supervisors, in China and France, I wish to seize this opportunity for constructing an analytic model of “teaching mathematics through variation” making profit of this theoretical diversity. This model distinguishes between potential variation and practical variation and is based on the process of transforming potential variation into actual variation, and of using practical variation for rethinking potential variation. The design of this model is based both on theoretical networking, and on case studies, in France and China. In this contribution, we will focus on a critical aspect in the two cases, from potential to practical variation.
Subject Classification: 97-06
Categorising question question relationships in the Pósa method
Authors: Katona Dániel 
Published: November 2020

The doctoral research of the author – with a reverse didactic engineering (RDE) methodology – aims at reconstructing the theoretical background of the ‘intuitively developed’ Pósa method for inquiry-based learning mathematics (IBME) in Hungarian talent education. Preliminary results of the second step of this theorization is presented, which applies tools of the Anthropological Theory of the Didactic (ATD). A model is proposed for categorizing question-question relationship with 3 categories: helping question, follow-up question and question of a kernel. The first two of them are claimed to represent two types (relevant or not) of generating-derived questions relationship. The model is also a prospective tool for connected task- and curriculum design and analysis within IBME development.
Subject Classification: 97D20, 97D40, 97D50, 97E50, 97K30
Visualisation in geometry education as a tool for teaching with better understanding
Authors: Gunčaga Ján , Budai László , Kenderessy Tibor 
Published: November 2020

In primary and secondary geometry education, some problems exist with pupils’ space thinking and understanding of geometric notions. Visualisation plays an important role in geometry education, and the development of pupils’ visualisation skills can support their spatial imagination. The authors present their own thoughts on the potential of including visualisation in geometry education, based on the analysis of the Hungarian National Core Curriculum and Slovak National Curriculum. Tasks for visualisation are also found in international studies, for example the Programme for International Student Assessment (PISA). Augmented reality (AR) and other information and communication technology (ICT) tools bring new possibilities to develop geometric thinking and space imagination, and they also support mathematics education with better understanding.
Subject Classification: 97U10, 97G10
whole new vigor
Authors: Mazliak Laurent 
Published: November 2020

In this paper, we consider a talk presented by the mathematician Paul Montel in Paris in 1944, dedicated to a general presentation of the importance of mathematics in everyday’s life. The text of this talk, and the context of its elaboration, allows various inceptions in the French mathematical life in the middle of 20th century. In particular Montel’s insistence on applications of mathematics strongly contrasts with the main tendencies of the French mathematical stage after the war under the impulse of the Bourbaki group.
Subject Classification: 97A40, 01A60, 60-03
Manipulatives and semiotic tools of Game of Go as playful and creative activity to learn mathematics in early grades in France
Authors: Cabassut Richard , Fenech Antoine 
Published: November 2020

This research develops resources to teach mathematics in French primary school by using the game of Go. A group of searchers, teachers and go players meet at university to produce teaching resources. These resources are implemented in the classroom. Then the group evaluate this implementation and improve the resources. The aim of this classroom research is to study the opportunities of the game of Go to learn mathematics and to propose a teacher training course to implement the game of Go in French primary schools in accordance with the French syllabus. Game of Go appears as a manipulative and semiotic tool to learn mathematics at primary school.
Subject Classification: 97D50, 97U60
Many paths lead to statistical inference
Authors: Borovcnik Manfred 
Published: November 2020

For statistics education, a key question is how to design learning paths to statistical inference that are elementary enough that the learners can understand the concepts and that are rich enough to develop the full complexity of statistical inference later on. There are two ways to approach this problem: One is to restrict the complexity. Informal Inference considers a reduced situation and refers to resampling methods, which may be completely outsourced to computing power. The other is to find informal ways to explore situations of statistical inference, also supported with the graphing and simulating facilities of computers. The latter orientates towards the full complexity of statistical inference though it tries to reduce it for the early learning encoun-ters. We argue for the informal-ways approach as it connects to Bayesian methods of inference and allows for a full concept of probability in comparison to the Informal Inference, which reduces probability to a mere frequentist concept and – based on this – restricts inference to a few special cases. We also develop a didactic framework for our analysis, which includes the approach of Tamás Varga.
Subject Classification: 97K10, 97K70, 97K50, 97D20
Group Work at High School According to the Method of Tamás Varga
Authors: Kovács-Kószó Eszter , Kosztolányi József 
Published: November 2020

The aim of our research is to develop students’ logical thinking. For this reason, Hungarian mathematics teachers need to be encouraged to try new methods which induce greater student involvement. Research all over the world prove that self-instruction or self-verbalizing has high effect on the learning process. This was one of the key elements of Tamás Varga’s experiment in high school. In our classroom experiments we are using a special cooperative method from Kagan among 14-18 years old students, called Sage and Scribe structure. We are looking for the answers to the following question: Does this method make mathematics lessons more enjoyable and more comfortable for students? Furthermore, we assume this structure could open the gate toward other collaborative and cooperative teaching technics.
Subject Classification: 97D40
Social and Epidemiological Research on Alcohol: Research Presented at Meetings of the Kettil Bruun Society between 1983 and 2017
Authors: Garretsen Henk , Van de Goor Ien , Roeg Diana , Van de Mheen Dike 
Published: November 2020

Aims: The Kettil Bruun Society (KBS) is a leading international society, known in full as the Kettil Bruun Society for Social and Epidemiological Research on Alcohol. This paper aims to analyse research presented at KBS annual meetings and provide an overview of the developments in the research agenda in the field. In this way we try to gain insight into worldwide developments in the research agenda on social and epidemiological research on alcohol between 1983 and 2017.
Methods: For the period 1983–1992, all annual meetings were the object of study. For the period after 1993, three sample periods of the annual meetings were used. The current paper is the fourth overview paper in a series. All papers have been reviewed with regard to their content, the research methods used, the country of origin, and the gender of the presenting authors.
Results: The number of papers presented at the annual KBS meetings increased from 35 in 1983 to over 160 in the years after 2009. In the period 1983–2017, the percentage of papers on policy and prevention doubled. Surveys have been the most popular research method in the period reviewed here.
Conclusions: The KBS is the international society for this type of research, and developments within the KBS give an indication of the worldwide developments in the research agenda on social and epidemiological research on alcohol between 1983 and 2017.
Assessment of Patients’ Knowledge of Radiation Exposure during Medical Imaging Procedures at Private Medical Radiography Centres in Ogun State, Nigeria
Authors: Adejumo Adedapo A. , Ugo U. Enebeli, , Bilewu Olaolu O. 
Published: November 2020

Introduction: Radiological examinations are commonly requested for patients to aid clinical diagnosis. However, many doctors do not realize how much radiation dosage their patients are exposed to during radiological aim. The main objective of this study was to assess the level of knowledge of radiation exposure and safety practices among patients undergoing medical imaging in Ado-Odo Local Government Area, in Ogun State of Nigeria.
Methodology: A self-administered questionnaire was used for the study.
Results: More than half of the respondents 216(69.7%) were female, more than one-quarter 153(49.4) of the respondents were aged 20-29 years, More than half 186(60.0%) of the respondent are single. More than half 204(66.4%) of the respondents have heard about radiation exposure. Majority 232(74.8%) of the respondents agree that radiation hazard do come only from medical radiations. More than half 21(68.7%) of the respondents agree that they do take note of radiation warning sign, majority 236(76.1%) of the respondents agree that they know the wrong use of dose of ionizing radiation can lead to mortality, 217(70.0%) of the respondents agree that inappropriate safety measure on ionizing radiation can result into cancer
Conclusion: This study notes that majority of the literature on awareness and knowledge of the effects of ionizing radiation was carried out among health workers, whereas there is limited information from patients who undergo the procedure. This accounts for the paucity of local studies to compare our results with. In future, studies could compare the radiation awareness among patients presenting at health facilities from public and private, as well as differences in awareness levels of self-presenting and prescribed patients
International Indexes
Authors: Ivaldi Enrico , Ciacci Andrea 
Published: November 2020

Abstract
International indexes are developed in order to monitor the conditions, under different sizes and from different perspectives, of different countries. For an index to be considered robust, it must strictly comply with the conditions defined and shared by the world's major statistical organizations. Compliance with certain parameters is essential if the index is to faithfully reflect a certain reality.
The scope of statistical methods used to construct indexes is wide. It is possible to identify multiple types of indexes with an international dimension, used to measure performance in geographical areas, countries, or regions. The main areas for which indexes are constructed include health, education and culture, agriculture and development, gender, environment, poverty and deprivation, science, technology and digital development, and democracy and freedom.
An analysis based on quantitative statistical tools is the starting point for the definition of public policies at various levels of government, as well as a valid way of monitoring the entire process of development and their impact in economic and social terms. Moreover, the indexes play a very important communicative role; the data, presented through suitable visual and tabular supports, is an effective vehicle of information to the public.
Monetizing Industry 4.0 and IoT Data for Marketing and Sales
Authors: Coleman Shirley Y. , Ahlemeyer‐Stubbe Andrea 
Published: November 2020

Abstract

Astute companies are well aware of the importance of data arising from
Industry 4.0
sensors that measure and record all aspects of production and service. They are able to develop new business models, initiate disruptive innovations, and open up new sources of revenue. At the same time, society is becoming more and more familiar with data from the so‐called
IoT
, the Internet of Things. The less‐technical areas of
marketing and sales
can also benefit from this mass of data, and it is this vital part of the business chain upon which this article focuses. The article explains some essential technologies, methods, and skills as well as critical success factors.
Monetizing Industry 4.0 and IoT Data for Marketing and Sales – Data Collected from Smart Homes and Wearables
Authors: Coleman Shirley Y. , Ahlemeyer‐Stubbe Andrea 
Published: November 2020

Abstract

In the new age of Industry 4.0, sensors measure and communicate all aspects of our everyday life. Smart companies are well aware of the importance of data arising from these sensors. They are able to develop new business models, initiate disruptive innovations, and open up new sources of revenue. At the same time, society is becoming more and more familiar with data from the so‐called IoT, the Internet of Things. The less‐technical areas of
marketing and sales
can also benefit from this mass of data, and it is this vital part of the business chain upon which this article focuses. This article discusses concrete examples from the area of smart homes and wearables. It describes the data which is generated and shows value creation opportunities for marketing and sales, both in large companies and small or medium
enterprises ( SMEs).
Ambiguity
Authors: Poesio Massimo 
Published: November 2020

Ambiguity is one of the most important aspects of natural language, but one of the most difficult to define and distinguish from related (and unrelated) phenomena. In this chapter, ambiguity is first differentiated from other sources of indeterminacy, such as unspecificity, and other sources of indefiniteness, such as vagueness. Different types of ambiguity – in particular homonymy and polysemy – are then discussed, starting with data about lexical ambiguity, and characterized using both linguistic and cognitive evidence; but it is emphasized that the distinction is not always obvious. Several non‐lexical types of ambiguity are then discussed, including referential, scopal, and collective/distributive/cumulative ambiguity. The preliminary definition of ambiguity is then supplemented in order to account for these distinctions, arguing for an approach in which the distinction between the types of ambiguity is based in part on pragmatic considerations. Finally, the extent to which speakers and listeners adhere to Grice's “Avoid Ambiguity” maxim is questioned, on the basis of evidence about deliberate ambiguity and “good enough” interpretations.