bluuebunny/crossref_metadata_2025 huggingface dataset:
Alternative of Visual Based Learning (VBL) Method Based on Short Duration Video for The Instrumental Chemistry Subject in Chemistry Department
Authors: Riyanto Riyanto , Febriana Beta Wulan
Published: February 2018

ABSTRACT:There had been done a study of Visual Based Learning (VBL) method based on Short Duration Video for Instrumental Chemicals Subject in Chemistry Study Program of Mathematics and Natural Sciences Faculty (MNSF), Islamic University of Indonesia (Universitas Islam Indonesia—UII). VBL method is carried out by creating a short duration video about an instrument according to the syllabus of instrument 1 subject such as AAS, UV-Vis Spectrophotometer, FTIR, GC-MS, and CV. In order to determine the effect of VBL method using, an analysis of scores obtained between the experimental class and the control class is used. To determine the effect of VBL on psychomotor ability is done by observing directly when students do an experiment or practicum. The influence of VBL method application on student motivation was studied by using questionnaire. The results pointed out that the data of both samples (both classes) is homogeneous. T-test results: Two-Sample Assuming Equal Variances showed that there is a significant difference in the final scores mean between the experimental class and the control class. Based on the mean score it indicates that the VBL method is better while compared to the learning method without VBL. VBL method has a significant effect on students motivation andpsychomotor ability when it is viewed from observation of practicum and the score of practicum. The conclusion is that the VBL method is able to increase students' motivation and psychomotor ability in the Instrumental Chemistry subject.
Processos Educativos e Religiosidade no Ensino: A Escola, Religiosidade e o Sagrado como uma tríade na contenção da violência escolar e na propagação da Cultura de paz
Authors: Eduardo Gusmão de Quadros Marcelo Máximo Purificação, Elisângela Maura Catarino,
Published: February 2018

Este texto, que provém da tese, realizada no âmbito do doutorado em Ciências da Religião na PUC-Goiás (2010-2014), pretende analisar a renovação do pensamento estratégico, no combate a violência vivenciada no ambiente escolar. Os “Peace Studies” ou Estudos da Paz abordam e identificam a concepção de violência e de paz na concepção de alunos do 9º ano do Ensino Fundamental de uma escola estadual em Luziânia – Goiás. O foco do estudo recai nos Processos Educativos utilizados a partir da disciplina de Ensino Religiosos que através da tríade Escola, Religiosidade e o Sagrado, tem por finalidade o desenvolvimento de uma cultura promotora da PAZ. Procurou-se, através do método explicativo, complementado por uma extensa análise bibliográfica e documental, encontrar e trabalhar os conceitos de violência; paz e do Sagrado. Como hipótese e guisa de argumentação, buscou-se compreender que a educação e todos os organismos que envolvem a construção desta em função da paz, podem ser a solução mais eficaz para o fim dos conflitos vivenciados nos espaços escolares. E o Sagrado, materializado na subjetividade da voz dos sujeitos e expressos e em desenhos, confirma isso.This text comes from the thesis, carried out under the PhD in Religious Sciences at PUC-Goiás (2010-2014), aims to analyze the renewal of strategic thinking in the fight against violence experienced in the school environment. The Peace Studies or Peace Studies approach and identify the conception of violence and peace in the conception of students of the 9th grade of a state school in Luziânia - Goiás. The focus of the study falls on the Educational Processes used from the Discipline of Religious Education that through the triad School, Religiosity and the Sacred, has the purpose of developing a culture that promotes PEACE. Through the explanatory method, it was complemented by an extensive bibliographical and documentary analysis, to find and to work the concepts of violence; Peace and the Sacred. As a hypothesis and as an argument, it was sought to understand that education and all the organisms that involve the construction of this one in function of peace, can be the most effective solution to the end of the conflicts experienced in the school spaces. And the Sacred, materialized in the subjectivity of the voice of the subjects and expressed and in drawings, confirms it.
Pentecostalismo e ecumenismo: algumas observações
Authors: Da Rosa André Luís
Published: February 2018

Num primeiro momento, a partir de uma visão fundamentada no senso comum, muitos afirmam que o pentecostalismo não possui relação alguma com o ecumenismo. Todavia, fazendo um resgate das origens desse movimento, percebe-se que sua espiritualidade era ecumênica e ainda há nela elementos que podem contribuir com o ecumenismo.  Assim, para demonstrar essa ideia, se apresentará, primeiramente, alguns dados sobre a origem ecumênica do pentecostalismo e, na sequência, o fechamento do mesmo ao movimento ecumênico em sua história. Por fim, vai-se apresentar algumas participações e iniciativas pentecostais em movimentos ecumênicos e algumas reflexões de teólogos pentecostais latino-americanos que tem discutido a questão da relação entre o pentecostalismo e o ecumenismo.In a first moment, from a view based on the common sense, many people claim that the pentecostalism is not in any way related with the ecumenism. However, turning back to the origins of this movement, it is possible to realize that its spirituality was ecumenic and it still has elements that can contribute with the Ecumenism. So, to demonstrate this idea, it will be introduced, firstly, a few data about the ecumenic origin of the Pentecostalism and, secondly, its restriction to the ecumenic movement in its history. Finally, it will be introduced examples of participations and initiatives of Pentecostals in the ecumenic movements and some reflections of Latino American Pentecostal theologians who have discussed the relation between pentecostalism ans ecumenism. .
A Prophetic Radical Reform of the Church: The Last Word of Bartolomé de las Casas
Authors: Rivera-Pagán Luis N.
Published: February 2018

In 1566, after several decades of intense and exhausting endeavors to influence and shape the policy of the Spanish state and church regarding the Americas, years of drafting countless historical texts, theological treatises, colonization projects, prophetic homilies, juridical complaints, political utopias, and apocalyptic visions, Bartolomé de Las Casas knows very well that the end is at hand: the end of his life and the end of his illusions of crafting a just and Christian empire in the New World. It is a moment of searching for the precise closure, the right culmination of a human existence that since 1502 had been intimately linked, as no other person of his time, to the drama of the conquest and Christianization of Latin America, a continent, as has been so aptly asserted, “born in blood and fire.
Flood Hazard Assessment of Bago River Basin, Myanmar
Authors: Zin Win Win , Kawasaki Akiyuki , Takeuchi Wataru , San Zin Mar Lar Tin , Htun Kyaw Zaya , Aye Thet Hnin , Win Shelly ,   Department of Civil Engineering, Yangon Technological University Gyogone, Insein Road, 11011 Yangon, Myanmar,   Department of Civil Engineering, The University of Tokyo, Tokyo, Japan,   Institute of Industrial Science, The University of Tokyo, Tokyo, Japan,   Remote Sensing and GIS Research Centre, Yangon Technological University, Yangon, Myanmar
Published: February 2018

Flood hazard mapping is an effective non-structural measure for sustainable urban planning, protecting human properties, lives, and disaster risk reduction. In this study, flood hazard assessment for the Bago river basin was performed. The flood inundation map of the Bago river basin was developed by coupling a hydrological and hydraulic model with geographical information systems. Flood hazard maps with different return periods were developed. The flood hazard map can be utilized to enhance the effectiveness of disaster risk management activities.
Understanding Regional Building Characteristics in Yangon Based on Digital Building Model
Authors: Murao Osamu , Usuda Takuma , Gokon Hideomi , Meguro Kimiro , Takeuchi Wataru , Sugiyasu Kazuya , Yu Khin Than ,   International Research Institute of Disaster Science, Tohoku University 468-1 Aoba, Aramaki, Aoba-ku, Sendai 980-0845, Japan,   Former Graduate School Student, Graduate School of Engineering, Tohoku University,   Institute of Industrial Science, The University of Tokyo, Japan,   Yangon Technological University, Myanmar
Published: February 2018

It is indispensable for a government to assess urban vulnerability to natural disasters such as earthquakes or flood in order to take appropriate disaster measures. However, it is sometimes difficult to obtain necessary dataset for cities or regions, especially for developing countries. The authors have been involved in a SATREPS project named “Development of a Comprehensive Disaster Resilience System and Collaboration Platform in Myanmar,” which aims to make urban vulnerability maps for Yangon City based on several datasets including building inventory of each ward. However, Yangon City has not catalogued enough data for the assessment so far. In this context, in order to understand and to arrange regional building characteristics of the city, this paper explores the possibility of using digital building model (DBM) data obtained from remote sensing imageries for the urban vulnerability assessment.

Firstly, a field survey was conducted in Sanchaung Township, and building characteristics such as structural types and the number of stories were analyzed. Therefore, DBM data was prepared for the following comparative analysis. Thirdly, additional field surveys were conducted in Latha and Pabedan Townships, located in the central business districts in the city. Finally, DBM data and the actual building data obtained by the surveys were compared to examine the applicability of DBM for building collapse risk assessment. As a result, it was found that DBM data of 3 m- 7 m represent low-rise buildings, and DBM data of more than 18 m reflect high-rise buildings.
Change in Disaster-Prevention Consciousness Brought by Serious Damage from a Large Scale Disaster: Studying the Kumamoto Earthquake in 2016
Authors: Ozeki Miki , Shimazaki Kan ,   Tokyo International University 2509, Matoba, Kawagoe, Saitama, Japan,   National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan
Published: February 2018

The aim of the current study was to test whether direct experience of a large-scale natural disaster enhanced disaster-prevention consciousness, using the disaster-prevention consciousness scale created by Shimazaki and Ozeki (2017). An online survey was conducted in February 2017 targeting those who lived in Kumamoto Prefecture, which was seriously damaged by the Kumamoto Earthquake. Participants were divided into two groups: a group of people who lived in 14 local towns where public employees of other local governments came to provide backup assistance after the Kumamoto Earthquake (heavily damaged group), and a group of people who did not live in these areas when the Kumamoto Earthquake occurred (damaged group). Results showed that interest in disasters, sense of danger in current disaster prevention, others orientation, and anxiety increased after large-scale natural disasters, irrespective of the extent of damage. Directly experiencing damage from the disaster enhanced imagination for damage situation.
Adaptive Path Planning for Cleaning Robots Considering Dust Distribution
Authors: Sasaki Takahiro , Enriquez Guillermo , Miwa Takanobu , Hashimoto Shuji ,   School of Advanced Science and Engineering, Waseda University 3-4-1 Okubo, Shinjuku-ku, Tokyo 165-8555, Japan,   Faculty of Science and Engineering, Waseda University 3-4-1 Okubo, Shinjuku-ku, Tokyo 165-8555, Japan
Published: February 2018

Path-planning algorithms for cleaning robots typically focus on how the robots can cover an entire space while minimizing overlapping or uncleaned areas. However, when considering actual environments, the distribution of dust and dirt is not uniform and has some specific features according to the shape of the environment and human behaviors. Therefore, if a cleaning robot plans its path while taking this distribution into consideration, it can clean the area more efficiently. In this paper, we present a novel path-planning algorithm for cleaning robots that prioritizes regions with large quantities of dirt and sorts them. The effectiveness of the proposed algorithm was examined through experimental simulations.
Tire Characteristics Estimation Method Independent of Road Surface Conditions
Authors: Shiozawa Yuuki ,   Mechanical Systems Engineering, Tokyo University of Agriculture and Technology 2-24-16 Naka-cho, Kognei-shi, Tokyo 184-8588, Japan, Mouri Hiroshi
Published: February 2018

To control vehicle behavior, it is essential to estimate tire force accurately at all times. However, it is currently difficult to detect tire performance degradation before the deterioration of vehicle dynamics in real time because tire force estimation is usually conducted by comparing the observed vehicle motion with the onboard vehicle-model motion baseline reference. Such conventional estimators do not perform well if there is a significant difference between the vehicle and the model behavior. The lack of technology to easily predict tire forces and road surface friction is concerning. In this paper, a new tire state estimation method based on tire force characteristics is proposed.
Development of Robot for 3D Measurement of Forest Environment
Authors: Morita Masaru , Nishida Takeshi , Arita Yuta , Shige-eda Mirei , Maria Enrico di , Gallone Roberto , Giannoccaro Nicola Ivan ,   Kyushu Institute of Technology 1-1 Sensui, Tobata, Kitakyushu, Fukuoka 804-8550, Japan,   University of Salento Via per Monteroni, 73100 Lecce, Italy
Published: February 2018

This paper describes the development of a robot that can move through a forest environment and automatically generates three-dimensional (3D) digital maps. We designed and constructed the robot, equipping it with a rocker-bogie mechanism composed of six drive wheels and four steering motors. This mechanics enables the robot to move damaging a forest as little as possible while negotiating the obstacle in it. This robot is equipped with a 3D light detection and ranging sensor, and it uses the normal distributions transform algorithm to construct 3D digital maps. We tested the generation of a 3D digital map of 50 m2of a sloped forest environment and verified the generated map by comparing it with a map constructed manually by engineers. The comparison revealed an error of less than 0.15 m.
STUDI PERILAKU HARIAN DAN KESEJAHTERAAN MONYET HITAM SULAWESI (Macaca nigra Desmarest, 1822) DI PUSAT PRIMATA SCHMUTZER
Authors: Komala Ratna , Octavia Desy , Supiyani Atin
Published: February 2018

Monyet hitam sulawesi merupakan primata endemik yang hampir punah. Konservasi ex situ monyet hitam sulawesi harus memperhatikan segala aspek yang berhubungan dengan kehidupan hewan tersebut, termasuk aspek perilaku dan kesajahteraan hewan. Penelitian ini bertujuan untuk mengetahui perilaku harian monyet hitam sulawesi berdasarkan jenis kelamin dan umur, serta tingkat kesejahteraannya di Pusat Primata Schmutzer (PPS). Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan teknik observasi. Analisis data perilaku harian monyet hitam sulawesi berdasarkan jenis kelamin dan umur dilakukan dengan uji Mann- Whitney, sedangkan analisis data tingkat kesejahteraan hewan dilakukan secara deskriptif. Hasil penelitian menunjukan bahwa terdapat perbedaan perilaku harian monyet hitam sulawesi berdasarkan jenis kelamin, yaitu pada perilaku bergerak, mencari makan, istirahat, dan sosial. Hasil penelitian juga menunjukan terdapat perbedaan perilaku harian monyet hitam sulawesi berdasarkan umur, yaitu pada perilaku bergerak, istirahat, dan sosial. Berdasarkan hasil analisis, tingkat kesejahteraan monyet hitam sulawesi di PPS termasuk dalam kriteria baik.
A Generalized Construction of Calabi-Yau Models and Mirror Symmetry
Authors: Berglund Per , Hubsch Tristan
Published: February 2018

We extend the construction of Calabi-Yau manifolds to hypersurfaces
in non-Fano toric varieties, requiring the use of certain Laurent
defining polynomials, and explore the phases of the corresponding gauged
linear sigma models. The associated non-reflexive and non-convex
polytopes provide a generalization of Batyrev’s original work, allowing
us to construct novel pairs of mirror models. We showcase our proposal
for this generalization by examining Calabi-Yau hypersurfaces in
Hirzebruch n-folds, focusing on n=3,4 sequences, and outline the more
general class of so-defined geometries.
Matrix structures in management of quality of educational and scientific work of Ukrainian universities
Authors: Velychko Oleksandr , Velychko Liudmyla
Published: February 2018

For the past few years, major progress in providing academic autonomy to Ukrainian universities has been made. However, a large number of universities even now remain the establishments with post-Soviet bureaucratic type of organization of management. As a result, a severe and complicated system of control over current activity has been supported, which requires from scientific and pedagogical workers not only to work effectively, but also to keep the set of rules and procedures. The purpose of the research is to search for possibilities of efficient application by modern universities of flexible matrix structures of management while forming their own internal system of quality control. Threats from bureaucratic management have been generalized for competitiveness of a modern university at the market of educational, scientific and consulting services. The concept and methodology on de-bureaucratization of the system of quality in higher education on the basis of the process approach of the theory of management and rationalistic logistics obtained further development. The mechanism of management of quality at the operational level of the university through integration of the segment-focused approach, system of grading and matrix organization of regular processes has been improved. Ways to apply matrix structure the middle and low levels of managing university have been suggested. Author’s recommendations have been provided towards rating evaluation of work of departments and their segment-focused structural organization. The matrix structure of management of quality of carrying out the temporary research project in the university under the conditions of the budget commission has been developed and practically tested.
INTEGRASI ILMU-ILMU ALAM DAN ILMU-ILMU SOSIAL DENGAN PEMAHAMAN HADIS NABI: Telaah atas Konsepsi, Aplikasi, dan Implikasi
Authors: Afwadzi Benny
Published: February 2018

Abstract: This article discusses an integration of natural and social sciences through understanding prophetic ḥadīth(s). It focuses on its conceptions, applications, and implications. The word “integration” is aimed to comprehend the ḥadīth in relation to those two particular sciences. This paper concludes that the conception of ḥadīth integration with the sciences lies on a paradigm shift in the study of ḥadīth. In this concept, ḥadīth(s) are used as material objects that are approached by the natural and social sciences as its formal objects (approach). In practice, four ḥadīth(s) are understood by the natural sciences, and the other four ḥadīth(s) as objects are understood by the social sciences. The understanding of ḥadīth through the natural sciences is textually stronger than that through directly understanding the textual ḥadīth, while the understanding through the social sciences alludes to the emergence of contextual understanding.Abstrak: Tulisan ini mengkaji integrasi ilmu-ilmu alam dan ilmu-ilmu sosial dengan pemahaman hadis Nabi, yang menitiberatkan pada kajian konsepsi, aplikasi, dan implikasi. Integrasi dalam tulisan ini dimaksudkan dengan pemahaman hadis dengan perangkat ilmu-ilmu alam dan ilmu-ilmu sosial. Tulisan ini menyimpulkan bahwa konsepsi integrasi hadis dengan ilmu-ilmu alam dan ilmu-ilmu sosial berpijak pada pergeseran paradigma dalam studi hadis. Dalam konsep ini, hadis berposisi sebagai objek material yang didekati dengan ilmu alam dan ilmu sosial sebagai objek formalnya (pendekatan). Dalam tataran aplikasi, empat hadis dipahami dengan ilmu-ilmu alam dan empat hadis sebagai objek yang dipahami dengan ilmu-ilmu sosial. Implikasi yang ditimbulkan oleh ilmu-ilmu alam adalah pemahaman tekstual yang lebih kuat dibandingkan dengan pemahaman langsung dari teks hadisnya, sedangkan ilmu-ilmu sosial berimplikasi munculnya pemahaman yang kontekstual.
Política Nacional de Saúde do Homem: implementação a partir do trabalho dos agentes comunitários de saúde
Authors: Simões Aline Vieira , Sampaio Daniela Márcia Neri , Dos Santos Fabrício Almeida , Duarte Ana Cristina Santos , Boery Rita Narriman Silva de Oliveira
Published: February 2018

Resumo: Conhecer a implementação da Política Nacional de Saúde do Homem no trabalho dos Agentes Comunitários de Saúde (ACS) em um município baiano. Utilizamos a Oficina Pedagógica a partir de um enfoque problematizador. Emergiram três eixos temáticos: Saúde do Homem no entendimento dos agentes; O trabalho em saúde dos ACS na promoção de ações voltadas à saúde do homem e Controle social como ferramenta para implementação da Política. Espera-se uma maior aproximação dos agentes e dos demais profissionais de saúde com esta temática, visando a promoção da assistência integral à saúde da população masculina.Palavras-chave: Saúde do Homem, Política de Saúde, Agentes Comunitários de Saúde.National Policy for Human Health: implementation in the work of Community Health WorkersAbstract: Know the implementation of the National Health Policy of the Man in the work of the Community Health Workers (CHW) in a town in Bahia. Used the workshop from a pedagogical problem-solving approach, emerging three themes: Health of the Man in the understanding of CHW; The health work of the CHW in the promotion of actions of men health and social control as a tool for implementation of Policy. It is expected that there be a closer approximation this theme with the CHW and other workers/professionals of health, aimed at the promotion of integral attention of man.Keywords: Human health, Health Policy, Community Health Workers.Política Nacional de Salud del Hombre: la aplicación en el trabajo de los Agentes Comunitarios de SaludResumen: Comprender la aplicación de la Política Nacional de Salud del Hombre en el trabajo de Agentes Comunitarios de Salud (ACS). Usamos el Taller Pedagógico. Emergieron tres temas: salud de lo hombre en la comprensión de los ACS; Lo trabajo en salud de los ACS en la promoción de acciones para la salud del hombre y el control social como una herramienta para la Aplicación de la Política. Se espera una aproximación con esta cuestión por los ACS, y de los otros profesionales de la salud, para la promoción de la atención integral de salud de la población masculina.Palabras clave: Salud Humana, Política de Salud, Agentes Comunitarios de Salud.
Teoria dos vínculos profissionais: visão dos enfermeiros que a implementaram no Brasil
Authors: Thofehrn Maira Buss , De Quadros Lenice De Castro Muniz , Dias Denise Gamio , Joner Leandro Rauber , Porto Adrize Rutz , De Garcia Bianca Lessa
Published: February 2018

Resumo: Conhecer a visão dos enfermeiros acerca da implementação da Teoria dos Vínculos Profissionais em sua equipe de trabalho. Pesquisa qualitativa, realizada com seis enfermeiros no Rio Grande do Sul, Brasil, por meio de entrevistas semiestruturadas, cujos conteúdos foram tratados com a análise temática. A teoria é vista como um novo modelo de gestão em enfermagem, com foco nas relações interpessoais, permitindo à equipe um trabalho crítico, reflexivo e participativo, em prol do alcance do objetivo comum – o cuidado do ser humano.Palavras-Chave: Enfermagem, Ambiente de Trabalho, Recursos Humanos.Theory of professional links: vision of nurses that have implemented in BrazilAbstract: Know the vision of the nurses about the implementation of the Theory of professional links in their work team. Qualitative research conducted with six nurses from southern Rio Grande do Sul, Brazil, through semi-structured interviews, whose contents were treated with the thematic analysis. The theory is seen as a new model of nursing management, focusing on interpersonal relationships, allowing the team a critical work, reflective and participatory, in favor of the reach of the common goal - the care of the human being.Keywords: Nursing, Work Environment, Human Resources.Teoría de vínculos profesionales: la visión de las enfermeras que a aplicaron en BrasilResumen: Conocer la visión de los enfermeros sobre la aplicación de la Teoría de los vínculos profesionales en su equipa de trabajo. Investigación cualitativa llevada a cabo con seis enfermeras del sur de Rio Grande do Sul, Brasil, a través de entrevistas semiestruturadas, cuyos contenidos fueron tratados con el análisis temático. La teoría es vista como un nuevo modelo de gestión de enfermería, centrándose en las relaciones interpersonales, lo que permite al equipo un trabajo crítico, reflexivo y participativo, en favor del alcance del objetivo común - el cuidado del ser humano. Palabras Clave: Enfermería, Ambiente de Trabajo, Recursos Humanos.
A Green Synthesis of Xanthenone Derivatives in Aqueous Media Using TiO2-CNTs Nanocomposite as an Eco-Friendly and Re-Usable Catalyst
Authors: Samani Amir , Abdolmohammadi Shahrzad , Otaredi-Kashani Asieh
Published: February 2018

Aim and Objective:

The xanthene (dibenzopyran) framework constitutes the core
structure of many biologically active compounds, that they have been of interest because of their
pharmacological activities like antiviral, antibacterial, anti-inflammatory, and CCR1 antagonist. As
heterogeneous catalysts offer several advantages over homogeneous catalysts, the performance of
reactions on the surface of nanosized heterogeneous salts has received a great deal of interest in
recent years. In the area of nanosized heterogeneous catalysts there is a noticeable range of reactions
that are catalyzed efficiently by TiO2 NPs. Moreover, carbon nanotubes (CNTs) as a support can be
used to obtain nanoparticles with modified morphology, structural, chemical, electrical, and optical
properties. The catalytic activity of titanium dioxide supported on carbon nanotubes has been greatly
improved.

Materials and Methods:

The present methodology focus on the synthesis of 7,7-dimethyl-10-aryl-
6,7,8,10-tetrahydro-9H-[1,3]dioxolo[4,5-b]xanthen-9-ones, through a condensation reaction of
dimedone, aromatic aldehydes and 3,4-methylenedioxyphenol, using a catalytic amount of TiO2-
CNTs nanocomposite (15 mol%) at 80 ˚C in aqueous media, within 60-90 min. The TiO2-CNTs
nanocomposite was also prepared by a known simple sonochemical method.

Results:

A series of 7,7-dimethyl-10-aryl-6,7,8,10-tetrahydro-9H-[1,3]dioxolo[4,5-b]xanthen-9-ones
were successfully synthesized in high yields (92-98%). All synthesized compounds were well
characterized by their satisfactory elemental analyses, IR, 1H and 13C NMR spectroscopy. The
synthesized catalyst was fully characterized by SEM, TEM, XRD, and EDX techniques.

Conclusion:

In summary, this investigation constitutes a novel and efficient route for the synthesis
of 7,7-dimethyl-10-aryl-6,7,8,10-tetrahydro-9H-[1,3]dioxolo[4,5-b]xanthen-9-ones in high yields, by
a three-component reaction of dimedone, aromatic aldehydes and 3,4-methylenedioxyphenol in
water and in the presence of the TiO2-CNTs nanocomposite as a green, effective and recyclable
catalyst. This novel method has the advantages of high yields, mild reaction conditions, short
reaction time, easy work-up, inexpensive reagents and environmentally friendly procedure.
Molecular Docking in Formulation and Development
Authors: Kaur Tejinder , Madgulkar Ashwini , Bhalekar Mangesh , Asgaonkar Kalyani
Published: February 2018

Background:

In pharmaceutical research drug discovery and development process is timeconsuming and expensive. In many cases, it produces incompetent results due to the failure of in vitro and in vivo conventional approaches. Before any new drug is placed in the market it must undergo rigorous testing to get FDA approval. Due to the several limitations imposed by the drug discovery process, in recent times in silico approaches are widely applied in this field. The purpose of this review is to highlight the current molecular docking strategies used in drug discovery and to explore various advances in the field.

Methods:

In this review we have compiled database after an extensive literature search on docking studies which has found its applications relevant to the field of formulation and development. The papers retrieved were further screened to appraise the quality of work. In depth strategic analysis was carried out to confirm the credibility of the findings.

Results:

The papers included in this review highlight the promising role of docking studies to overcome the challenges in formulation and development by emphasizing it’s applications to predict drug excipient interactions which in turn assist to increase protein stability; to determine enzyme peptide interactions which maybe further used in drug development studies; to determine the most stable drug inclusion complex; to analyze structure at molecular level that ascertain an increase in solubility, dissolution and in turn the bioavailability of the drug; to design a dosage form that amplify the drug discovery and development process.

Conclusion:

This review summarizes recent findings of critical role played by molecular docking in the process of drug discovery and development. The application of docking approach will assist to design a dosage form in the most cost effective and time saving manner.
The Protective Effects of Green Tea Catechins in the Management of Neurodegenerative Diseases: A Review
Authors: Farkhondeh Tahereh , Yazdi Hanieh Shaterzadeh , Samarghandian Saeed
Published: February 2018

Background:

The therapeutic strategies to manage neurodegenerative diseases remain limited and it is necessary to discover new agents for their prevention and control. Oxidative stress and inflammation play a main role in the pathogenesis of neurodegenerative diseases. The aim of this study is to review the effects of green tea catechins against the Neurodegenerative Diseases.

Methods:

In this study, we extensively reviewed all articles on the terms of Green tea, catechins, CNS disorders, and different diseases in PubMed, Science Direct, Scopus, and Google Scholar databases between the years 1990 and 2017.

Results:

The present study found that catechins, the major flavonoids in green tea, are powerful antioxidants and radical scavengers which possess the potential roles in the management of neurodegenerative diseases. Catechins modulate the cellular and molecular mechanisms through the inflammation-related NF-κB and the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathways.

Conclusion:

The findings of the present review shows catechins could be effective against neurodegenerative diseases due to their antioxidation and anti-inflammation effects and the involved biochemical pathways including Nrf2 and NF-kB signaling pathways.
VaD - An Integrated Framework for Cognitive Rehabilitation
Authors: Balea Maria , Muresanu Dafin , Alvarez Anton , Homberg Volker , Bajenaru Ovidiu , Guekht Alla , Heiss Wolf-Dieter , Popa Livia , Vester Johannes , Muresanu Ioana , Birle Codruta , Slavoaca Dana
Published: February 2018

Background & Objective: Vascular dementia is the second most common cause of dementia,
with clinical features that depend on neural substrates affected by the vascular lesions. Like most
neurological disorders, it involves alterations that range from the molecular level to neuronal networks.
Such alterations begin as compensatory mechanisms that reshape every subsystem involved in
the brain's homeostasis. Although there have been recent huge advances in understanding the pathophysiology
of cognitive dysfunction, a suitable therapeutic approach to vascular dementia remains elusive.
Pharmacological interventions have failed to sustainably improve cognitive function, and it is a
well-known fact that there is a need to change the current view for providing neuroprotection and enhancing
neurorecovery after stroke. Studies regarding cognitive training are also faced with the difficulty
of drawing up protocols that can embrace a holistic approach in cognitively impaired patients.

Conclusion:

This review will present a brief synthesis of current results from basic research data and
clinical studies regarding pharmacological and non-pharmacological interventions in vascular dementia
and will offer an integrated view from the perspective of systems biology.
Survey on Facility Managers Perception through Instant Message via Whatsapp Application
Authors: Aziz Nor Diana , Nawawi Abdul Hadi , Muhamad Ariff Nor Rima
Published: February 2018

The use of paper-based questionnaires for data collection tends to increase costs, duration and difficulty in distributing survey instrument due to geographical factors. Meanwhile, the online distribution promises more comfortable and time-saving circulation. However, the low response rates via email are often discussed by numerous social scholars. Thus, this study adapts online applications such as an instant message via Whatsapp as a data collection tool that enables a high rate of return promptly. Therefore, this study aims to promote instant messaging application as an effective quantitative data collection method. Thus, two objectives designed in this study; (1) to identify the practical data collection method that is appropriate for facility managers and (2) to analyse the responses among facility managers received from various collection techniques employed. A total of 942 measurement instrument distributed using two appropriate procedure; (1) online questionnaire (2) paper-based questionnaire. The online questionnaire designed using the Google Form distributed by email and instant message (Whatsapp application). Meanwhile, the paper-based survey distributed via face to face interview. At the end of the study, indicates that the use of the online questionnaire survey through Whatsapp application contributes to the highest rate of return (74.14%) when compared to the distribution method via email (14.53%) shows the lowest return rate. This study has also identified that all responses via Whatsapp were usable and valid to analysed. Meanwhile, contradict with email distribution showed 30 non-usable survey responded by the respondent and need to removed in this study due to rejected and not qualified to answer the data. Indeed, the instant online communication is more likely to attract the attention of the facility manager to respond to this study. Moreover, conducting a questionnaire survey through a user-friendly method can achieve a higher return of response rates, more cost-effective, more time-saving, easy to manage and easy to control bias sampling
Оптические переходы в кристаллах ZnSe и CdTe с участием d-зон катионов
Authors: Соболев В.В. , Перевощиков Д.А.
Published: February 2018

AbstractThe permittivity spectra ε_1( E ) and ε_2( E ) of ZnSe and CdTe crystals are calculated in the range of 10–25 eV using their experimental reflectance spectra and Kramers–Kronig integral relations. The spectra are decomposed into thirteen and twelve separate transition bands for ZnSe and CdTe, respectively, using the improved nonparametric combined Argand diagram technique. The main spectral parameters, including the maximum energies and halfwidths and oscillator strengths, are determined. The oscillator strengths are found to be within 0.1–1.4 for ZnSe and 0.2–0.7 for CdTe. The obtained ε_2( E ) bands are due to interband and exciton transitions with the involvement of cation core d bands of both crystals under consideration.
Влияние малых доз гамма-излучения на оптические свойства пористого кремния
Authors: Биленко Д.И. , Белобровая О.Я. , Терин Д.В. , Галушка В.В. , Галушка И.В. , Жаркова Э.А. , Полянская В.П. , Сидоров В.И. , Ягудин И.Т.
Published: February 2018

AbstractThe possibility of modifying the photoluminescence properties of porous silicon by irradiation with low doses of γ photons from a ^226Ra radioisotope source and bremsstrahlung is demonstrated. The position of the longest photoluminescence wavelength tends to shift to the short-wavelength region of the spectrum. The emission efficiency increases upon irradiation of both the substrate and the layer formed.
Электрон-электронное и электрон-фононное взаимодействия в графене на полупроводниковой подложке: простые оценки
Authors: Давыдов С.Ю.
Published: February 2018

AbstractThe problem of epitaxial graphene formed on a semiconductor substrate is considered in the context of the extended Hubbard and Holstein–Hubbard models for electron–electron and electron–phonon interactions. The Haldane–Anderson model is chosen for the density of states of the substrate. Three regions of the phase diagram, specifically, spin- and charge-density waves and a spin- and charge-homogeneous paramagnetic state are considered. For a number of special cases used as examples, the similarities and differences of the electron states of graphene on semiconductor and metal substrates are demonstrated. It is shown that the main difference arises, if the Dirac point of graphene lies within the band gap of the semiconductor. Numerical estimations are performed for a SiC substrate.
Нелинейная по концентрации поверхностных состояний модель барьера Шоттки и расчет вольт-амперных характеристик диодов на основе SiC и его твердых растворов в составной модели токопереноса
Authors: Алтухов В.И. , Санкин А.В. , Сигов А.С. , Сысоев Д.К. , Янукян Э.Г. , Филиппова С.В.
Published: February 2018

AbstractA modified Schottky-barrier model, which is nonlinear in terms of the surface-state concentration and contains a local quasi-Fermi level at the interface induced by excess surface charge, is proposed. Such an approach makes it possible to explain the observed similarity of the I–V characteristics of diodes with the Schottky barrier M/(SiC)_1– x (AlN)_ x and those of heterojunctions based on SiC and its solid solutions taking into account Φ_g ≈ Φ_B. The results of calculations of the Schottky-barrier heights are consistent with the experimental data obtained from measurements of the photocurrent for metals (M): Al, Ti, Cr, and Ni. The I–V characteristics in the composite–additive model of charge transport agree with the experimental data for the n -M/ p -(SiC)_1– x (AlN)_ x and n -6 H -SiC/ p -(SiC)_0.85(AlN)_0.15 systems.
Моделирование атомной и электронной структуры вакансий и поливакансий кислорода в ZrO-=SUB=-2-=/SUB=-
Authors: Перевалов T.B.
Published: February 2018

AbstractCubic, tetragonal, and monoclinic phases of zirconium oxide with oxygen vacancies and polyvacancies are studied by quantum chemical modeling of the atomic and electronic structure. It is demonstrated that an oxygen vacancy in ZrO_2 may act as both an electron trap and a hole one. An electron added to the ZrO_2 structure with an oxygen vacancy is distributed between two neighboring Zr atoms and is a bonding orbital by nature. It is advantageous for each subsequent O vacancy to form close to the already existing ones; notably, one Zr atom has no more than two removed O atoms related to it. Defect levels from oxygen polyvacancies are distributed in the bandgap with preferential localization in the vicinity of the oxygen monovacancy level.
Фазовые диаграммы твердых растворов сегнетоэлектриков-релаксоров по данным диэлектрической спектроскопии
Authors: Таланов М.В. , Резниченко Л.А.
Published: February 2018

AbstractThe dielectric spectra of Pb(_1– z )Ba_ z (Mg_1/3Nb_2/3)_ m (Zn_1/3Nb_2/3)_ y (Ni_1/3Nb_2/3)_ n TixO_3 ( x = 0.25–0.4, y = 0.1130–0.0842, m = 0.4844–0.1298, n = 0.1266–0.4726, z = 0–0.15) ceramics with substitution in both A and B crystallographic positions of the perovskite structure are studied. The system demonstrates a transition from the relaxor state to the normal ferroelectric state in both cases: when the concentration of lead titanate grows and the concentration of barium is reduced. On the basis of experimental results, the x–T and z–T phase diagrams are plotted. Despite different crystal chemical reasons of the relaxor state emergence in the investigated solid solutions, their diagrams demonstrate an evident similarity. We have revealed the disappearance of the temperature hysteresis at the transition to the relaxor state in both cases, which has allowed us to make an assumption of the existence of tricritical points on the corresponding diagrams.
Динамика развития канала переключения в планарных структурах на основе диоксида ванадия
Authors: Беляев М.А. , Борисков П.П. , Величко А.А. , Пергамент А.Л. , Путролайнен В.В. , Рябоконь Д.В. , Стефанович Г.Б. , Сысун В.И. , Ханин С.Д.
Published: February 2018

AbstractThe results of the experimental studies and numerical simulation of the switching channel development dynamics in planar structures on the basis of vanadium dioxide are reported. The obtained data on the variation of the temperature in the channel with time and of the current arisen after the pulsed load, and on the times of transition from the high-resistance to the low-resistance state and back are analyzed in order to determine the switching mechanism and to predict the functional characteristics of the switchable vanadium- oxide structures as promising materials for the creation of relaxation generators that can serve as prototypes of neural oscillators. It is shown that the switching behavior is associated with the metal–semiconductor phase transition in vanadium dioxide, which is stimulated by the emission of Joule heat.
Термоэлектрические свойства ферромагнитного полупроводника на основе дираковского полуметалла Cd-=SUB=-3-=/SUB=-As-=SUB=-2-=/SUB=- при высоком давлении
Authors: Мельникова Н.В. , Тебеньков А.В. , Суханова Г.В. , Бабушкин А.Н. , Сайпулаева Л.А. , Захвалинский В.С. , Габибов С.Ф. , Алибеков А.Г. , Моллаев А.Ю.
Published: February 2018

AbstractThe pressure dependences of thermal emf (a parameter that ranks among the most sensitive to phase transformations) are studied for the purpose of identifying baric phase transitions in the 10–50 GPa interval in the Cd_3As_2 + MnAs (44.7% MnAs) structure formed by ferromagnetic MnAs granules in a semiconductor Cd_3As_2 matrix.
Эпитаксиальный рост пленок селенида кадмия на кремнии с буферным слоем карбида кремния
Authors: Антипов В.В. , Кукушкин С.А. , Осипов А.В. , Рубец В.П.
Published: February 2018

AbstractAn epitaxial cubic 350-nm-thick cadmium selenide has been grown on silicon for the first time by the method of evaporation and condensation in a quasi-closed volume. It is revealed that, in this method, the optimum substrate temperature is 590°C, the evaporator temperature is 660°C, and the growth time is 2 s. To avoid silicon etching by selenium with formation of amorphous SiSe_2, a high-quality ~100-nm-thick buffer silicon carbide layer has been synthesized on the silicon surface by substituting atoms. The powder diffraction pattern and the Raman spectrum unambiguously correspond to cubic cadmium selenide crystal. The ellipsometric, Raman, and electron diffraction analyses demonstrate high structural perfection of the cadmium selenide layer and the absence of a polycrystalline phase.
Исследование фазовых переходов сегнетоэлектрика KIO-=SUB=-3-=/SUB=- в нанопористых матрицах на основе пленок Al-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=-
Authors: Милинский А.Ю. , Барышников С.В.
Published: February 2018

AbstractTemperature dependences of the linear permittivity ε' and the third harmonic amplitude γ_3ω of composites prepared by introducing ferroelectrics KIO_3 into matrices of porous aluminum oxide Al_2O_3 with pore sizes of 240 nm were studied. It is found that the IV → III and III → II structural transition temperatures of potassium iodide in Al_2O_3 pores decrease by 5 K and 24 K, respectively, with respect to bulk KIO_3. The measurements of the dielectric properties do not reveal V → IV and II → I phase transitions in the composite samples.
Поверхностные плазмон-поляритоны на границе мелкослоистой среды на основе графена
Authors: Евсеев Д.А. , Семенцов Д.И.
Published: February 2018

AbstractProperties of surface plasmon polaritons of the TM type at the interface of an isotropic insulator and a periodic graphene–insulator structure have been investigated. It is established that the presence of graphene in this structure allows one to obtain (in certain frequency ranges) negative effective permittivity and implement the condition for the existence of a surface wave that is practically unabsorbed. The influence of the graphene content in the structure on the characteristics of plasmon polaritons (in particular, the possibility of their significant slowing-down) is demonstrated.
Поперечное движение частицы с осциллирующим зарядом и переменной массой в магнитном поле
Authors: Алисултанов З.З. , Рагимханов Г.Б.
Published: February 2018

AbstractThe problem of motion of a particle with an oscillating electric charge and variable mass in an uniform magnetic field has been solved. Three laws of mass variation have been considered: linear growth, oscillations, and stepwise growth. Analytical expressions for the particle velocity at different time dependences of the particle mass are obtained. It is established that simultaneous consideration of changes in the mass and charge leads to a significant change in the particle trajectory.
Формирование особенностей на поверхности раздела жидких диэлектриков в горизонтальном электрическом поле при наличии тангенциального разрыва скоростей
Authors: Зубарев Н.М. , Кочурин Е.А.
Published: February 2018

AbstractNonlinear dynamics of the interface of dielectric liquids under the conditions of suppression of the Kelvin–Helmholz instability by a tangential electric field has been investigated. Two broad classes of exact analytical solutions to the equations of motion describing the evolution of spatially localized and periodic interface perturbations have been found. Both classes of solutions tend to the formation of strong singularities: interface discontinuities with formally infinite amplitudes. The discontinuity sign is determined by the sign of liquid velocity jump at the interface.
Уменьшение ширины спектра излучения гиротрона при использовании внешних отражений
Authors: Богдашов А.А. , Глявин М.Ю. , Розенталь Р.М. , Фокин А.П. , Тараканов В.П.
Published: February 2018

AbstractThe stabilizing influence of external reflections on gyrotron operation has been demonstrated in direct particle-in-cell modeling. A model with a temporal realization duration providing an opportunity to calculate frequency characteristics with a relative accuracy no worse than 2 × 10^–6 has been used for the first time. An almost twofold reduction in the spectrum width of a 28-GHz gyrotron has been observed experimentally after the introduction of reflections of the output signal.
Влияние термообработки на электрические характеристики полуизолирующих слоев, полученных с помощью облучения n-SiC высокоэнергетическими ионами аргона
Authors: Иванов П.А. , Потапов А.С. , Кудояров М.Ф. , Козловский М.А. , Самсонова Т.П.
Published: February 2018

AbstractIrradiation of crystalline n -type silicon carbide ( n -SiC) with high-energy (53-MeV) argon ions was used to create near-surface semi-insulating ( i -SiC) layers. The influence of subsequent heat treatment on the electrical characteristics of i -SiC layers has been studied. The most high-ohmic ion-irradiated i -SiC layers with room-temperature resistivity of no less than 1.6 × 10^13 Ω cm were obtained upon the heat treatment at 600°C, whereas the resistivity of such layers heat-treated at 230°C was about 5 × 10^7 Ω cm.