bluuebunny/crossref_metadata_2025 huggingface dataset:
Questions Analysis in Mathematics Textbook from Competency-Based Curriculum up to Curriculum 2013
Authors: Raditya Aji , Iskandar Ratu Sarah Fauziah , Suwarno Suwarno
Published: June 2020

Mathematics textbooks have a significant role in mathematics teaching, and learning activities in schools and the questions contained in textbooks are usually used by students to practice independently. The purpose of this study is to analyze the types of problems in mathematics textbooks used from 2000 to 2017 in Indonesia, especially in the material of one-variable linear equations. The method used in this study is a six-dimensional analysis method, which consists of mathematical activities, the level of difficulty of the questions, the types of answers expected, contextual situations, the types of responses and the types of mathematical questions. Data collection techniques are done by analyzing and describing the types of questions in mathematics textbooks used from 2000 to 2017. The results of this study are the problems in mathematics textbooks for linear variable equations of one variable that do not have diverse types, the types of questions in textbooks are still many in the form of questions that calculate or use a variety of arithmetic operations, apply directly the basic knowledge or skills and without context in everyday life. Also, the existing questions are questions with closed answers, namely questions that only require answers without a reason and questions with a single procedure
Construction company administration of intangible resources in the face of uncertainty
Authors: Курганский Сергей
Published: June 2020

Management of intangible resources is an important component of a construction company's business processes. The rapid development of information technology forces construction companies to change their usual activities and rebuild business processes in accordance with the challenges of the real market. It is digital technologies that are the object of the company's intangible assets that can be used much more effectively to improve the current processes and information flows in the construction company. The advantages of the construction company's intangible assets, such as Smart spaces, are that they provide increased efficiency and lower production costs, achieved through rational actions, the use of faster and more secure communication methods that guarantee the necessary flow of information. They also improve efficiency through rational and timely actions, with an emphasis on creating value and using new technologies. The economic effect of using information technologies, namely the introduction of Smart spaces, can be either direct, material in the form of achieved cost reduction and increased productivity of operations, or non-material, in the form of implemented patents and licenses, and improving the company's image, as well as the potential of information technologies that can be used to make more effective decisions of a strategic nature.
DESIGN AND MANUFACTURING DEVICE MOBILITY LOAD MOTION SHIELDING PARAFFIN RADIATION PROTECTION SYSTEM FACILITY TEST IN VITRO IN VIVO
Authors: Widarto Widarto
Published: June 2020

Practical work at PSTA-BATAN to find paraffin design and the design of mobile devices with Monte Carlo N Particle (MCNP) software. The method used is to determine the paraffin design and calculate the volume of paraffin. The resulting intact writing that modeled with the MCNP. Shielding is required to absorb the leaking radiation until the 20 mSv / year Dose Limit Value for radiation workers is met. The material used is paraffin. Calculation is done by using MCNPX calculation facility with tariff of 10,42 μSv / hour. The paraffin design criteria are built on recommendations from Indonesian Journal of Physics and Nuclear Applications Volume 1, Number 1, February 2016. Some of the above-standard methods are overcome with the protection aspects of distance and radiation time. Paraffin used is made of hydrocarbons suitable for strengthening shielding structures and for absorbing gamma radiation.
GAMIFICATION IN ENGINEERING EDUCATION IN CANADA: A SYSTEMATIC REVIEW OF THE LITERATURE
Authors: Bezerra Rodrigues Renato Alan
Published: June 2020

In order to tackle issues related to student engagement and motivation, some instructors have used games design elements as pedagogical methods in their classroom. Research on the use of gamified pedagogies in engineering education has grown in the last 15 years. However, past literature reviews found almost no papers documenting the use of gamification in Canada. Therefore, this paper will report the results of a systematic literature review specifically focused on the use of game-based learning and gamification strategies in engineering education in Canada. Results showed that 15 papers documented the pedagogical use of games or gamification in the Canadian undergraduate engineering education context. Most papers reported positive outcomes regarding student attitude, motivation and engagement; however, more research is needed on the efficacy of gamified pedagogies in delivering learning outcomes.
INDIGENOUS INITIATIVES IN ENGINEERING EDUCATION IN CANADA: COLLECTIVE CONTRIBUTIONS
Authors: Seniuk Cicek J. , Steele A.L. , Burgart D. , Rogalski P. , Gauthier S. , Mattucci S. , Bazylak J. , Mante A. , Robinson M. , Herrmann R. , Staub-French S.
Published: June 2020

The purpose of this Participatory Action Research (PAR) project is to share with the CEEA-ACEG membership the Indigenous initiatives being taken in CEAB accredited engineering programs across Canada. We received contributions from 24 institutions and 4 organizations, from which 11 categories of initiatives emerged. The intention is to create an ethical space where Indigenous and non-Indigenous engineering educators can learn from one another, and work together guided by Etuaptmumk (Two-Eyed Seeing), to advance Indigenous ways of knowing and being in engineering in Canada. This project is ongoing. Contact us if you wish to contribute and/or engage in the projects arising from this work.
Everyday Surveillance, Goffman, and Unfocused Interaction
Authors: Eley Louise , Rampton Ben
Published: June 2020

It is often said that surveillance has massively transformed our social lives (Lyon, Haggerty, and Ball 2012: 1), but this claim is weakened by the admission that its “effects are difficult to isolate or observe, as they are embedded within many normal aspects of daily life.” Picking up this analytic challenge, this paper investigates the everyday interactional practice and experience of being surveilled. To do so, it draws on Goffman’s account of the interaction order, dwelling closely on unfocused interaction in which people maintain a side-of-the-eye, half-an-ear awareness of the people, objects, and events in the space around them. After introducing key concepts from Goffman, the paper discusses three scenes of surveillance: a woman walking down a city street, two men putting up street stickers (a civil offence), and passengers being scanned at an airport (Pütz 2012). It shows how different senses of potential threat and illegality enter the experience of surveillance, and it builds a rudimentary model. This paper considers only a tiny fraction of contemporary surveillance, but it shows Goffman’s value as an analytic resource that can hold large-scale generalisations about the surveillance society to account, allowing us to see agentive responses to surveillance that are too subtle to be captured by notions like subversion and resistance. Indeed, Goffman corroborates Green and Zurawski’s (2015) suggestion that surveillance is a basic mode of the social, elaborated in different ways in different environments.
Wearables and Sur(over)-Veillance, Sous(under)-Veillance, Co(So)-Veillance, and MetaVeillance (Veillance of Veillance) for Health and Well-Being
Authors: Mann Steve
Published: June 2020

At the University of Toronto, we’re embarking on a bold new initiative to bring together these four disciplines: law, business, engineering, and medicine, through what we call “sousveillant systems”—grassroots systems of “bottom up” facilitation of cross-, trans-, inter-, meta-, and anti-disciplinarity, or, more importantly, cross-, trans-, and inter-passionary efforts. Passion is a better master than discipline (to paraphrase Albert Einstein’s “Love is a better master than duty”). Our aim is not to eliminate “big science,” “big data,” and “big watching” (surveillance), but to complement these things with a balancing force. There will still be “ladder climbers,” but we aim to balance these entities and individuals with those who embody the “integrity of authenticity” and to provide a complete picture that is otherwise a half-truth when only the “big” end is present. This generalizes the notion of “open source,” where each instance of a system (e.g., computer operating system) contains or can contain its own seeds (e.g., source code). Sousveillant systems are an alternative to the otherwise sterile world of closed-source, specialist silos that are not auditable by end-users (i.e., are only auditable by authorities from “above”).
Gambaran Kecerdasan Emosi pada Remaja di Pulau Jawa dan Bali
Authors: Basaria Debora
Published: June 2020

Adolescence is a period of transition from childhood to adulthood. Adolescence is a good time to develop emotional intelligence which is one of the important types of intelligence in society (especially in Indonesia). Increasing the adolescent's violence cases who reach 50 percent can cause by emotion regulation problems that occur in these adolescents. Emotional intelligence is one aspect that represents special competencies to facilitate, process, and manage emotionally. The purpose of this study was to obtain an overview of emotional intelligence in adolescents in Java and Bali. The subjects of this study were 1,013 adolescents who came from junior high and high school in Java and Bali and with an age range between 12-19 years. Type of this research is quantitative descriptive research. The results of the normality test of emotional intelligence variables show that research data is normally distributed. The main data processing results can conclude that the majority of adolescents in Java and Bali have controlling intelligence with a moderate level (46%), while the balance between the number of adolescents who have a low level of emotional intelligence (26.9%) and high level of emotional intelligence (26.9%).
Gambaran Depresi pada Mahasiswa Universitas X di Jakarta
Authors: Dharma Andri Setia
Published: June 2020

Previous studies have shown that students often experience depression. Depression among students often stay unidentified due to no screening has been done. The aim of this study is to describe depression phenomenon in students of University X in Jakarta. A cross-sectional survey with self-competion questionnaire was conducted among active students in X University. Two-hundred and one student completed the Beck Depression Inventory-II (BDI-II) to measure depression. Result showed that 36.8% students indicated to have depression with further detail of 17.4% students with mild depression, 14.4% students with moderate depression, and 5% students with severe depression. The average score for BDI-II is 12.2 (SD = 8.11) with 0 minimum score and 37 maximum score. This result indicated that University X need to perform screening of depression on their students since there is still found students with depression. Students are encouraged to utilize counseling service provided by University X.
Perbedaan Parental Mediation pada Ibu Bekerja dan Tidak Bekerja, yang Memiliki Anak Usia Dini
Authors: Melinda Michelle , Pandia Wenny Savitri S.
Published: June 2020

Smart devices are one of the most common communication tools used by all ages. This is due to the ease of access that can be reached via a smart device, and also their interesting features. The features contained in the device are not only for learning but also for entertainment. The advantage of the device for early childhood is as a learning medium, but if the device is overused the child becomes less stimulated psychosocially and motorically. These skills are important to be honed at an early age. That is why parents need to do parental mediation to reduce excessive exposure to the use of devices in early childhood. For working mothers, mentoring children in using devices will be more difficult because they have less time with children. However, it doesn’t mean that assistance provided by non-working mothers will be better because the amount of their activity. This study aims to look at the differences in parental mediation strategies used by working and non-working mothers. This study used quantitative method by distributing parental mediation questionnaires to mothers who had early childhood in 291 participants at two different schools, 51.2% were working mothers, and 48.8% were non-working mothers. There is no difference in mediation used between working and non-working mothers. This study also finds that children’s age, mother’s age and her latest education do not affect the used of parental mediation’s type. The majority of mothers use restrictive mediation. They tend to limit time of use, and content that can be watched.
Euclid’s theory of proportion revised
Authors: Błaszczyk Piotr , Petiurenko Anna
Published: June 2020

Teoria pola po raz pierwszy została opisana w pracy Chou, Gao, Zhang w 1994 roku. W kolejnej pracy (Janicic, Narboux, Quaresma 2012) zaprezentowano nowy system aksjomatów teorii pola i program przeznaczony do automatycznego dowodzenia twierdzen. W artykule chcemy przedstawić interpretację teorii pola w geometrii analitycznej na płaszczyznie kartezjanskiej R×R z porządkiem leksykograficznym. Również pokażemy nową metodę dowodzenia twierdzeń geometrycznych (szczególnie twierdzeń z ksiegi VI Elementów Euklidesa), w której pole trójkąta wystepuje w dowodach (szczególnie w proporcji) jako element pierwotny (wzór na pole trójkąta wprowadza się, jako aksjomat). Podobną metodę stosował Euklides na objektach geometrycznych bez użycia liczb. W omawianej teorii pole trójkąta jest liczbą, a twierdzenie VI.1 Elementów, podstawowe dla teorii Euklidesa, jest przyjmowane jako aksjomat. W artykule również omówimy mało znaną własność, która jest modyfikacją twierdzenia VI.1: w miejsce proporcji trójkątów o wspólnej wysokości, wykorzystuje proporcje trójkątów o wspólnej podstawie.
Tłumaczenie: Emil Artin, Otto Schreier, Algebraiczna konstrukcja ciał rzeczywistych
Authors: Pogonowski Jerzy
Published: June 2020

Tłumaczenie
Structural determinants of GBV against refugee youth: Advancing critical theoretical perspectives
Authors: Alamdar Negar
Published: June 2020

The scholarship on gender-based violence (GBV) against refugee youth has succeeded in highlighting the significance of micro social psychological or situational analyses. Missing, however, are analyses that incorporate structural approaches, especially as informed by critical feminist and critical race theories. This review not only suggests ways in which structural analyses may proceed by further recommending the conceptual utility of integration and dislocation as key concepts in refugee studies, GBV and analyses of youth. These concepts mediate the relationships between two fundamental and prevailing units in the social theorizing – micro and macro-analyses. By incorporating more holistic, relational and critical foci regarding systems of domination (misogyny, racism, youth discrimination, homophobia) within the political economy and culture and their embedded institutions, more systemic and long term remedies are recommended.
Arts-based methodologies to explore Asian-Canadian youth identities in the Greater Toronto Area: Sharing some implementation experiences from the field
Authors: Madzima Sheena , Karunakaran Amirtha , Vazquez Luz Maria , Khanlou Nazilla
Published: June 2020

Cultural identity is a complex, fluid and context bound concept. Cultural identity is informed by immigrant and second-generation youths’ experiences of adaptation and integration. Cultural identity has also been linked to youth mental health and wellbeing. Research recognizes the need to develop research tools to better capture and understand youths’ lived experiences with their identity and integration in multicultural settings. We present preliminary research findings from our community-based project that applied arts-based methodologies to explore Asian-Canadian youth identities in the Greater Toronto Area in Canada. Inclusion criteria were (i) youth between the ages of 16-29 and (ii) who self-identify as Asian or Asian-Canadian. We organized two workshops with youth participants. In workshop 1 we applied visual arts: Self-Portrait and a Relational Map. In workshop 2 we applied drama (Readers’ Theatre). Youth feedback highlighted the effectiveness of arts-based methodologies in (i) helping youth to discuss their lived experiences without feeling like they were under evaluation, (ii) providing a universal way of communicating their experiences and, (iii) allowing youth to think of issues that participants had not previously reflected on. We also shared some implementation experiences. This pilot study informed implementation strategies for a current larger project that has the objective of evaluating the effectiveness of arts-based methodologies to explore Asian-Canadian youth identities.
Heroes should not die by suicide: The tragic life of Dr. Lorna Breen
Authors: Zangeneh Masood
Published: June 2020

Commentary by Masood Zangeneh, Editor-in-Chief of International Journal of Mental Health & Addiction.
INYI Global Network
Authors: Khanlou Nazilla
Published: June 2020

INYI global network for INYI Journal Vol 9 Issue 1.
“Evolution of normative-legal aspects of UN peacekeeping activity and position of the Russian Federation with regards to this question”
Authors: Torosian Akop Oganesovich
Published: June 2020

This article examines the evolution of the normative-legal aspects of UN peacekeeping activity as one of the key phenomena of peacekeeping under the aegis of the United Nations. The author also analyzes the position of the Russian Federation on this question, since Russia is one of the major players on the international arena and active participant of peacekeeping activity within the UN system. Special attention is paid to the normative documents of the Russian Federation, which reflect a clear position of Russia on peacekeeping. Currently, peacekeeping plays an urgent role in world politics, helps to prevent escalation of multiple conflicts, despite the existence of problem clusters within the United Nations peacekeeping activity. Peackeeping also yielded great benefit to the international community; however, it needs changes and improvements to increase its effectiveness in regulation of drawn-out conflicts on the world arena.
“Disintegration of the Atom” and later poems of Georgy Ivanov in the context of European modernism
Authors: Kozlova Maria Vladimirovna
Published: June 2020

This article is dedicated to comprehension of aesthetic concept of the Russian poet Georgy Ivanov, reflected in “Disintegration of the Atom” and his poems of later period. “Disintegration of the Atom” is perceived as an attempt of creating the manifest of Russian modernism that in a lyrical form interprets views of the poet upon the crisis of art of the early XX century and way of overcoming it. Unlike José Ortega y Gasset, who formulated the key principle of art in Western modernism as “dehumanization”, i.e. renunciation of mimesis, and huts the meaning (article “Dehumanization of Art), Georgy Ivanov sees the only opportunity for overcoming the crisis of art in preservation of human content therein. The scientific novelty of this work consists in carrying out the first within Russian aesthetics analysis of Georgy Ivanov’s “Disintegration of the Atom” in the context of Western modernism, as well as in outlining his aesthetic concept that is based on synthesis of the ironic and lyrical beginnings, in other word, reflection about the form, rationalized thoughts of the artist on the existence.
TÜRKİYE’DE PARA POLİTİKASI ARAÇLARININ İSTİHDAM DÜZEYİ ÜZERİNE ETKİSİ: ARDL SINIR TESTİ YAKLAŞIMI
Authors: KARA Mehmet , BAŞ Gizem
Published: June 2020

Bu araştırmada, para politikası araçları ile istihdam düzeyi arasındaki ilişki 2011:01-2019:01 dönemi verilerinden yararlanılarak Türkiye ekonomisi için belirlenmeye çalışılmıştır. Tahmin yöntemi olarak, ARDL modeli kapsamında UECM ve sınır testi yaklaşımı kullanılmıştır. ARDL analiz yöntemi kapsamında ilk olarak sınır testi uygulanmış değişkenler arasında uzun dönemli ilişki tespit edilmiştir. Ayrıca hem kısa hem de uzun dönemde, Geç Likidite Penceresi (GLP) Faiz Oranı ve para arzı(M3) ile istihdam düzeyi arasında istatistiki ve ekonomik olarak anlamlı bir ilişki olduğu görülmüştür.
Religiosidade e espiritualidade na prática clínica em saúde mental
Authors: Rodrigues Deisiane Duarte , Fonseca Rayziane Christiele de Freitas , Fonseca José Ricardo Ferreira da , Araújo Rebeca Caranha , Alves Lara Abreu Ribeiro , Harjani Susy Cavalcante , Vieira Henry Walber Dantas
Published: June 2020

Objetivo: Avaliar a influência da religiosidade e espiritualidade no campo da saúde mental por meio dos profissionais de saúde. Métodos: estudo com abordagem qualiquantitativo e descritivo-exploratória com 7 profissionais de saúde, em um Centro de Atenção Psicossocial no município de Manaus-AM. Foi realizado junto com os profissionais no CAPS um questionário e após essa etapa, a análise dos dados. Resultados: A religiosidade e espiritualidade pode gerar influências positivas em aspectos relevantes para a saúde. Portanto, depende da forma como cada paciente conduz, utiliza e interpreta essas práticas durante a sua reabilitação, por isso é importante a presença dos profissionais de saúde, para agregar esse elo de religiosidade, espiritualidade e saúde de forma saudável. Conclusão: O conteúdo religiosidade e espiritualidade pode ter um impacto positivo na saúde de pessoas com transtornos mentais e pode ajudá-las na adesão ao tratamento e nas dificuldades geradas pela doença. O número pequeno da amostra resultou pela indisponibilidade dos profissionais, sendo necessário ser produzido em mais unidades do CAPS.

S.
Pola Pembentukan Konstruksi Verba Serial dalam Bahasa Batak Toba (Teori X-Bar)
Authors: Saragih Elza Leyli Lisnora , Mulyadi Mulyadi
Published: June 2020

This study aimed to describe the construction and how the formation pattern of serial verbs in Batak Toba language through X-bar theory.  A qualitative descriptive method with data collection techniques using note-taking and interview techniques was used. Data were collected from interviews with native speakers and the text of Toba Batak language almanac. In analyzing the data, a method of distribution was employed. The results showed that the formation pattern of serial verbs in the Batak Toba language consisted of 4 types namely which were [transitive V1+ transitive V2], [transitive V1+intransitive V2], [intransitive V1+ transitive V2], and [intransitive V1 + intransitive V2]. The first type, [transitive V1+ transitive V2] is formed from the predicate that followed by the object + the predicate and followed by the object. The next formation, [V1 transitive + V2 intransitive] is formed from predicates followed by object + predicates and not followed by the object. The later type, [V1 intransitive + V2 transitive] is formed from predicates that not followed by object + predicates and followed by an object. Further, the last type, [intransitive V1 + V2] is formed from a predicate not followed by an object + a predicate and not followed by an object.
Pengaruh Minat Belajar dan Kesantunan Berbahasa terhadap Prestasi Penulisan Teks Diskusi Siswa Kelas VIII SMPN 21 Tangerang Selatan
Authors: Septiani Dwi , Aryani  , Saragih Desi Karolina , Maulinda Rerin
Published: June 2020

Learning interest is an intellectual system that is very important in learning activities. However, in learning the Indonesian language at the SMP/MTs level, the tendency of students’ learning interest is still weak. One of the learning materials in the curriculum 2013 is discussion text which is the focus of this study. In writing discussion text, one of the obstacles often faced by students was the lack of knowledge about the language politeness in expressing ideas or something disapproval. Related to this problem, this study aimed to explain the effect of learning interest and language politeness towards the writing achievement of discussion text of eight grade students at SMPN 21 South Tangerang. This research method was a survey method with multiple correlation regression analysis. The population of eight grade students of SMPN 21 South Tangerang was 30 students. Then, the data collection was done by distributing questionnaires directly to the sample which were 30 students. To analyze the data, descriptive statistics was used. The results showed; (1) there was an interactive effect between learning interest and language politeness towards the writing achievement of discussion text. It was evidenced by the significant value which was 0.000<0.005 and Fcalculated =34,499. Besides, the learning Interest and language politeness collectively contributed 71.9% towards students’ writing achievement of discussion text; (2) there was an effect of language politeness towards students’ writing achievement of discussion text that was more significant than the effect of learning interest. It can be proven from the value of tcalculated =8,249 for language politeness which was greater than the value of tcalculated =1.762 for learning interest.
How Good Are Polarizable and Flexible Models for Water: Insights from a Many-Body Perspective
Authors: Lambros Eleftherios , Lab Paesani
Published: June 2020

We present a systematic analysis of state-of-the-art polarizable and flexible water models from a many-body perspective, with a specific focus on their ability to represent the Born-Oppenheimer potential energy surface of water, from the gas to the liquid phase. Using coupled cluster data in the completed basis set limit as a reference, we examine the accuracy of the polarizable models in reproducing individual many-body contributions to interaction energies and harmonic frequencies of water clusters, and compare their performance with that of MB-pol, an explicit many-body model that has been shown to correctly predict the properties of water across the entire phase diagram. Based on these comparisons, we use MB-pol as a reference to analyze the ability of the polarizable models to reproduce the energy landscape of liquid water at ambient conditions. We find that, while correctly reproducing the energetics of minimum-energy structures, the polarizable models examined in this study suffer from inadequate representations of many-body effects for distorted configurations. To investigate the role played by geometry-dependent representations of 1-body charge distributions in reproducing coupled cluster data for both interaction and many-body energies, we introduce a simplified version of MB-pol that adopts fixed atomic charges and demonstrate that the new model retains the same accuracy as the original MB-pol model. Based on the analyses presented in this study, we believe that future developments of both polarizable and explicit many-body models should continue in parallel and would benefit from synergistic efforts aimed at integrating the best aspects of the two theoretical/computational frameworks.
Thermo-Responsive Wettability via Surface Roughness Change on Polymer-Coated Titanate Nanorod Brushes Toward Fast and Multi-Directional Droplet Transport
Authors: Okada Kenji , Miura Yoko , Chiya Tomoya , Tokudome Yasuaki , Takahashi Masahide
Published: June 2020

A novel approach for thermo-responsive wettability has been accomplished by surface roughness change induced by thermal expansion of paraffin coated on titanate nanostructures. The surface exhibits thermo-responsive and reversible wettability change in a hydrophobic regime; the surface shows superhydrophobicity with contact angles of ~157° below 50 °C and ~118° above 50 °C due to a decrease of surface roughness caused by thermally-expanded paraffin at higher temperatures. Reversible wettability change of ~40° of a contact angle allows for a fast and multi-directional droplet transport. The present approach affords versatile selection of materials and wide variety of the contact angle, promoting both scientific advancement and technology innovation in the field of smart surface.
Gold Metallodrugs to Fight the Corona Virus: Inhibitory Effects on the SpikeACE2 Interaction and on PLpro Protease Activity by Auranofin and Gold Organometallics
Authors: Gil-Moles Maria , Basu Uttara , Büssing Rolf , Hoffmeister Henrik , Türck Sebastian , Varchmin Agnieszka , Ott Ingo
Published: June 2020

Gold complexes have a long tradition in medicine and for many examples antirheumatic, anticancer or anti-infective effects have been confirmed. Here we evaluated the lead compound Auranofin and five selected gold organometallics as inhibitors of two relevant drug targets of severe acute respiratory syndrome coronaviruses (SARS-CoV). The gold metallodrugs were effective inhibitors of the interaction of the SARS-CoV-2 spike protein with the angiotensin converting enzyme 2 (ACE2) host receptor and might thus interfere with the viral entry process. The gold metallodrugs were also efficient inhibitors of the SARS-CoV-1 papain-like protease (PLpro), which is a key enzyme in the viral replication. Taken together, the results of this pilot study suggest further evaluation of gold complexes as SARS-CoV antiviral drugs.
Revealing Ultrafast Two-Electron Transfer Over Tryptophan with Mass Spectrometry
Authors: Zhong Hongying , Qi Yinghua , Jiang Ruowei , Li Weidan , Yang Xiaojie , Jia Shanshan
Published: June 2020

Electron transfer crucial to bioenergetics is ubiquitously present in biological systems but most of them escape from direct observations. By using tryptophan and its derivatives with 1-CH3, 2-CH3, 5-CH3 and 5-OH substitutions as model molecules, we have unambiguously demonstrated successive two-electron transfer to tryptophan as well as electronic and vibrational excited molecular dissociation with mass spectrometry. The ultra-short time delay between two electrons down to sub-attosecond over a distance less than 10 Å was found to cause the strong coupling of electronic and vibrational excitations that was validated by the observation of radical-radical coupling. Intramolecular H migrations along with two-electron transfer was demonstrated with H/D exchange and 13C stable isotope labeling. This proposed technique allows us to observe the ultrafast electron transfer from tryptophan to the heme group in myoglobin proteins. It bridges electron transfer to energy transfer that has been revealed in FRET alone. FeII (porph•‐) and FeI (porph•‐) resulting from one- and two-electron transfer, respectively, have been unambiguously identified
New Access to the Synthesis of 1,1,4,4-Tetracyanobuta-1,3-Diene-Based Push–pull Chromophores Using Tetracyanoethylene Oxide via [3+2] Cycloaddition-Ring Opening Reactions
Authors: Dar Arif Hassan , Gowri Vijayendran , K M Neethu , Jayamurugan Govindasamy
Published: June 2020

Herein we report a new way to access the synthesis of established invaluable push–pull chromophores based on 1,1,4,4-tetracyanobuta-1,3-dienes (TCBDs) using tetracyanoethylene oxide (TCNEO) upon reaction with alkynes substituted with an electron-donating group (EDG) via [3+2] cycloaddition (CA) followed by ring-opening (RO) reactions. Further, we uncovered that the facile [3+2] CA–RO reaction under simpler reaction condition is possible due to the presence of EDG group, otherwise, even the formation of [3+2] cycloadduct without EDG requires harsher condition and does not lead to TCBD as reported earlier in 1965 by Linn and Benson.
Amino-Functionalization of Vinyl-Substituted Aromatic Diimides by Quantitative and Catalyst-Free Hydroamination
Authors: SANEMATSU Haruki , Matsushita Yoshitaka , TAKEUCHI Masayuki , TAKAI Atsuro
Published: June 2020

Development of facile and versatile synthetic tools for decorating π-conjugated molecules has attracted considerable interest because of their potential application in creating novel π-electron materials. Reported herein are quantitative catalyst-free hydroamination reactions of a series of aromatic diimide compounds having vinyl groups at the π-core, which have been confirmed by NMR, UV–vis absorption spectroscopy, mass analysis, and single crystal X-ray structural analysis. Kinetic studies revealed that the hydroamination reaction of a vinyl-substituted naphthalenediimide with an aliphatic amine proceeded rapidly under benign conditions. Similary, the two vinyl groups attached to aromatic diimides reacted with amines simultaneously, resulting in the formation of amine bisadducts and macromolecules.
The Bond-Valence Substituent Index for Predicting the Boiling Temperatures of Aliphatic Hydrocarbons
Authors: Sumera Florentino C. , Jacutin Stephani , Aficial Jan Michael , Filipino Aileen
Published: June 2020

A simple molecular descriptor based on molecular structure for predicting the boiling temperature (BT) of alkanes was developed in this paper. This topological index was used to correlate the boiling temperature of aliphatic hydrocarbons with their bond-valence substituent structure instead of by atom-to-atom branching framework. The predictive power of the bond-valence substituent index (BVSI) was evaluated by comparing it with the popular predictor in literature, the Randic index and the more recently proposed index, the Fi of Manso et al. (2012). The model developed through a second order regression of the plot of the alkane’s boiling temperature versus the BVSI index proved successful in its predictive power such that the method was also applied to a combination of aliphatic hydrocarbons, the alkanes, alkenes, alkynes and cycloalkanes. This topological index provided higher correlation with small deviations compared to the topological index used for comparison. A further study of the BVSI index can be explored for other organic compounds with different functional groups and other physical properties besides their boiling temperatures in the future.
Scent marking in Sunda clouded leopards (Neofelis diardi): Novel observations close a key gap in understanding felid communication behaviours
Authors: Allen ML , Wittmer Heiko , Setiawan E , Jaffe S , Marshall AJ
Published: June 2020

© 2016 Author(s). Intraspecific communication is integral to the behavioural ecology of solitary carnivores, but observing and quantifying their communication behaviours in natural environments is difficult. Our systematic literature review found that basic information on scent marking is completely lacking for 23% of all felid species, and information on 21% of other felid species comes solely from one study of captive animals. Here we present results of the first systematic investigation of the scent marking behaviours of Sunda clouded leopards in the wild. Our observations using motion-triggered video cameras in Indonesian Borneo are novel for clouded leopards, and contrary to previous descriptions of their behaviour. We found that clouded leopards displayed 10 distinct communication behaviours, with olfaction, scraping, and cheek rubbing the most frequently recorded. We also showed that males make repeated visits to areas they previously used for marking and that multiple males advertise and receive information at the same sites, potentially enhancing our ability to document and monitor clouded leopard populations. The behaviours we recorded are remarkably similar to those described in other solitary felids, despite tremendous variation in the environments they inhabit, and close a key gap in understanding and interpreting communication behaviours of clouded leopards and other solitary felids.
The Effect of Self-Efficacy, Self-Concept, Learning Activities and Independent Learning on Mathematics Learning Achievements
Authors: Ernawati Ernawati
Published: June 2020

This study aimed to find out (1) the description of self-efficacy, self-concept, learning activities, independent learning, and mathematics learning achievements, (2) the effect of self-efficacy on students’ mathematics learning achievements directly and indirectly through independent learning, (3) the effect of self-concept on students’ mathematics learning achievements directly and indirectly through independent learning, (4) the effect of learning activities on students’ mathematics learning achievements directly and indirectly through independent learning. The population was students at SMPN in Somba Opu sub-district. Data were collected through 284 students as the samples of the study selected by employing equal size cluster random sampling technique. Data were analyzed by using descriptive statistics analysis and path analysis. The results of the study revealed that (1) most of grade VII students at SMPN in Somba Opu sub-district have self-efficacy with high category, self-concept with high category, learning activities with extremely high category, independent learning with high category, and mathematics learning achievements with high category, (2) self-efficacy positively and significantly affect on mathematics learning achievements directly and indirectly through independent learning, (3) self-concept positively and significantly affect on mathematics learning achievements directly and indirectly through independent learning, and (4) learning activities positively and significantly affect on mathematics learning achievements directly and indirectly through independent learning
Development of a mathematics instructional media by utilizing geogebra to enhance junior high school students’ Higher order thinking skills
Authors: Ma’rufi Ma’rufi , Ilyas Muhammad , Agung Shandy , Lihu Ikram
Published: June 2020

This study aimed to develop an interactive visual media called Geoactive (Geogebra interactive) by employing Geogebra to improve students higher order thinking skill (hots) in the learning of solid geometry. The media was developed by using the model of 4D from Thiagarajan, which consists of define, design, develop, & disseminate. The product testing was conducted in SMPN 2 BUA, and two validators validated the product. Results show that: (1) the Geoactive developed was declared valid with the average assessment score of 4.45 which was in the category of very good; (2) the interactive media developed was declared practical with its indicator of the average of learning implementation being 78.67% which was in the category of good and the score of students’ response was 2.89 which was categorized as good; (3) the Geoactive developed was effective with the completeness indicator of conceptual understanding and problem solving was 77,14% and 71,43%, respectively. Both of the two scores were categorized as high
The Effectiveness Of Methaporical Thinking Approach To Improve The Mathematical Representation Ability
Authors: Haidar Irajuana , Jahring Jahring
Published: June 2020

This research is an experimental research which aims to describe the effectiveness of the methaporical thinking approach to improve the mathematical representation ability of class VIII SMPN 2 Toari. In addition, it also aims to determine how much students are engaged in the learning process when applying the methaporical thinking approach. The research subjects were divided into two groups, namely the experimental group taught using the methaporical thinking approach and the control group taught by conventional learning. The results showed that students who were taught with a methaporiical thinking approach were more active in the learning process so that the ability of representation also increased. In addition, it was found that mean of mathematical representation ability of students taught using the approach of methaporical thinking was better than students taught with conventional learning. Therefore, the approach of methaporical thinking is able to improve the mathematical representation ability of class VIII SMPN 2 Toari
Multicentre comparison of quantitative PCR-based assays to detect SARS-CoV-2, Germany, March 2020
Authors: Muenchhoff Maximilian , Mairhofer Helga , Nitschko Hans , Grzimek-Koschewa Natascha , Hoffmann Dieter , Berger Annemarie , Rabenau Holger , Widera Marek , Ackermann Nikolaus , Konrad Regina , Zange Sabine , Graf Alexander , Krebs Stefan , Blum Helmut , Sing Andreas , Liebl Bernhard , Wölfel Roman , Ciesek Sandra , Drosten Christian , Protzer Ulrike , Boehm Stephan , Keppler Oliver T
Published: June 2020

Containment strategies and clinical management of coronavirus disease (COVID-19) patients during the current pandemic depend on reliable diagnostic PCR assays for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Here, we compare 11 different RT-PCR test systems used in seven diagnostic laboratories in Germany in March 2020. While most assays performed well, we identified detection problems in a commonly used assay that may have resulted in false-negative test results during the first weeks of the pandemic.
Azərbaycanın su hövzələrində külmə balığının (rutilus rutilus Caspicus jakowlev) miksosporidik faunası
Authors: Kerimova R.K.
Published: June 2020

Tədqiqatın məqsədi: Külmə - Rutilus rutilus caspicus (Jakowlev, 1870) Xəzər su hövzəsinin vacib sənaye balığllarından biridir. Azərbaycanın su hövzələrində bu balığın parazit faunası haqqında ədəbiyyatda müəyyən məlumatların mövcud olmasına baxmayaraq onun miksosporidləri yetərincə öyrənilməmişdir.

Tədqiqatın material və metodları: 1995-1999-cu və 2008-2010-cu illərdə Azərbaycanın müxtəlif su hövzələrində apa- rılan təhlillər yığımlar bu iş üçün material olmuşdur. Ümumi qəbul olunmuş tam parazitoloji yarma metodikasına əsasən digər balıqlar ilə birlikdə Orta Kürdə, Aşağı Kürdə, Araz çayının aşağı axarında, Aqstafaçayda, Turyançayda, Lənkərançayda, Orta Xəzərin azərbaycan sahillərində və Cənubi Xəzərdə tutulmuş 108 ədəd külmə - Rutilus rutilus caspicus (Jakowlev, 1870) tədqiq olunmuşdur.

Həm təzə, həm də, dondurulmuş balıqların donunun açılmasından sonra onların yarılması nəticəsində həm vegetativ formalar, həm də, hüceyrələrdə, toxumalarda və orqanların boşluqlarında rast gəlinən sporlar aşkar olunmuşdur. Tapılan miksosporidlərin identifikasiyası prosesində və onların morfologiyasının xüsusiyyətlərinin dəqiqləşdirilməsi üçün   Azərbaycan   MEA   Zoologiya   İnstitutunun   su   heyvanları   parazitlərinin   labaratoriyasının   kolleksiya   materialı nəzərdən keçirilmişdir.

Tədqiqatın nəticələri: Azərbaycanın su hövzələrində tədqiq olunmuş 104 ədəd külmə balığında 19 növ miksosporidi tapılmışdır. Bu balığın qəlsəmələrində, böyrəklərində və əzələlərində 9-dan 13-ə qədər, qaraciyərində, öd kisəsində, dalağında, sidik kisəsində, ürəyində, bağırsağının divarlarında, üzgəclərinin toxumasında, gözlərində və baş beynində 1-5 növ qeyd olunmuşdur. Aşağı Kürdə külmədə 7, Orta Kürdə 6, Cənubi Xəzərdə 5, Orta Kürdə, Arazda və Aqstafa- çayda 4, Turyançayda 2 növ miksosporidi aşkar edilmişdir.

Yekun: 1995-1999-cu və 2008-2010-cu illərdə Azərbaycanın möxtəlif su hövzələrində 104 ədəd külmə balığı tədqiq olunmuş və 19 növ miksosporidi tapılmışdır. Bütün tapılmış miksosporidlər boreal düzənlik mənşəlidirlər. Növlərdən biri balıqlar üçün patogen olduğu müəyyən edilmişdir.
Evaluasi Penerapan Sistem Peringatan Dini Bencana Longsor di Kampung Jatiradio, Desa Cililin, Kecamatan Cililin, Kabupaten Bandung Barat
Authors: Sudiana Nana
Published: June 2020

Indonesian territory is a disaster-prone region. There are at least 12 disaster threats that are grouped in geological disasters (earthquakes, tsunamis, volcanoes, landslides), hydrometeorological disasters (floods, flash floods, droughts, extreme weather, extreme waves, forest and land fires), and anthropogenic disasters (epidemics of disease outbreaks and failed technology-industrial accidents). Landslides or land movements in Indonesia in recent years have increased in intensity and frequency. One of the efforts to reduce the risk of landslides that has been carried out by the Disaster Risk Reduction Technology Center-BPPT is to build an Landslide Early Warning System in Jatiradio Village, Cililin District, West Bandung Regency. In order to uniform the implementation of an early warning system for landslides or land movements in disaster prone areas, the government has established a national standard namely SNI 8235: 2017 on the Early Warning System for Land Movements. The purpose of this study is to evaluate the compliance between the Landslide Early Warning System that has been developed by PTRRB-BPPT with the Indonesian National Standard for the Land Movement Early Warning System (SNI 8235: 2017). Based on the results of data analysis and evaluation, it can be concluded that the implementation of the landslide early warning system in Jatiradio Village, Cililin Village, Cililin District, West Bandung Regency is in accordance with the Indonesian National Standard (SNI 8235: 2017) concerning the Soil Movement Early Warning System.
Kajian Bahaya Kebakaran Hutan di Kabupaten Nganjuk
Authors: Naryanto Heru Sri , Wisyanto Wisyanto
Published: June 2020

ABSTRACTThe Nganjuk District is mostly planted by forests, both protection forests and production forests with a total area of 20 333.00 ha. Forest and land fires often occur in Nganjuk District, which causes economic and environmental losses. Forest and land fires often cause haze disasters that can disrupt the activities and health of surrounding communities. The forest and land fire hazard map is needed. Making a forest and land fire hazard map of Nganjuk District is carried out with consideration of various parameters, namely: rainfall, land use, altitude, and type of forest. The analysis was carried out using spatial analysis with a scoring system of influential parameters, and from the results of the analysis 3 (three) classifications of fire hazard-prone areas were determined, namely: high hazard, moderate hazard, and low hazard. The five (5) biggest sub-districts included in the forest and high land fire hazard zones in Nganjuk District are the sub-districts: Rejoso, Lengkong, Ngluyu, Gondang, and Jatikalen. Zoning maps of forest and land fire hazards in Nganjuk District are urgently needed in the framework of mitigation, adaptation and disaster management of forest and land fires, as well as sustainable development planning in Nganjuk District. Keywords: Nganjuk, forest and land fires, hazard zone map, mitigation. ABSTRAKKawasan Kabupaten Nganjuk hutan banyak ditumbuhi oleh hutan, baik hutan lindung maupun hutan produksi dengan luas total 20 333.00  ha. Kebakaran hutan dan lahan sering terjadi di Kabupaten Nganjuk, yang menyebabkan kerugian ekonomi dan lingkungan. Kebakaran hutan dan lahan seringkali menyebabkan bencana asap yang dapat mengganggu aktivitas dan kesehatan masyarakat sekitar. Peta zonasi bahaya kebakaran hutan dan lahan sangat diperlukan. Pembuatan peta bahaya kebakaran hutan dan lahan Kabupaten Nganjuk dilakukan dengan pertimbangan berbagai parameter, yaitu: curah hujan, tataguna lahan, ketinggian tempat, dan jenis hutan. Analisis dilakukan dengan menggunakan analisis spasial dengan sistem skoring dari parameter yang berpengaruh, dan dari hasil analisis akan ditetapkan 3 (tiga) klasifikasi daerah rawan bahaya kebakaran yaitu: bahaya tinggi, bahaya sedang, dan bahaya rendah. Lima (5) kecamatan terbesar yang termasuk zona bahaya kebakaran hutan dan lahan tinggi di Kabupaten Nganjuk adalah kecamatan-kecamatan: Rejoso, Lengkong, Ngluyu, Gondang, dan Jatikalen. Peta zonasi bahaya kebakaran hutan dan lahan di Kabupaten Nganjuk sangat diperlukan dalam rangka mitigasi, adaptasi dan penanggulangan bencana kebakaran hutan dan lahan, serta perencanaan pembangunan berkelanjutan di Kabupaten Nganjuk. Kata kunci: Nganjuk, kebakaran hutan dan lahan, peta zonasi bahaya, mitigasi.