bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of a 660 V / 15 kVA single-phase UPS based on series connection of low-output-voltage modular UPS
Authors: Lazzarin Telles B. , Barbi Ivo
Published: September 2018

Critical loads are usually provided by sources of uninterruptible power supply (UPS). Such devices have output voltages equivalent to levels found in commercial power grids. However, when high output voltages are required there is still no standard solution to achieve the desired level of voltage. This paper proposes the development of a high-output-voltage single-phase UPS based on the series connection of several low-output-voltage modular UPSs. The main idea is to obtain a commercial UPS in one standard module which can connect several modules in series until reaching the required output voltage. This solution allows high-voltage to be obtained employing only available modules and being of low cost it is suitable for industrial application. In this context, this paper introduces some principles regarding the series connection of UPS, which translates into the serial connection of voltage source inverters (VSIs). Furthermore, the study provides the experimental verification of the proposed system through the development of a prototype of 660V and 15kVA, obtained from the connection of three single-phase modules of 220V and 5kVA.
Contribuição ao Estudo dos Principais Algoritmos de Extração da Máxima Potência dos Painéis Fotovoltaicos
Authors: Brito Moacyr A. G. de , Sampaio Leonardo P. , Melo Guilherme de A. e , Canesin Carlos A.
Published: September 2018

Este artigo apresenta as principais técnicas de extração da máxima potência dos painéis fotovoltaicos (MPPT), realizando extensas comparações no que diz respeito à quantidade de energia extraída em relação à máxima disponível (FR - Fator de Rastreamento), ondulação de potência em regime permanente, respostas dinâmicas e uso de sensores. Através das plataformas MatLab/Simulink® e DSpace, um conversor boost CC/CC foi implementado e conectado a um emulador de painéis solares a fim de verificar apropriadamente cada algoritmo. Os principais resultados experimentais para os métodos convencionais e também para os novos algoritmos desenvolvidos, denominados de IC baseado em PI e P&O baseado em PI, são apresentados. Além disso, a resposta dinâmica e o FR são avaliados através de uma plataforma amigável ao usuário, que é capaz de programar remotamente os simuladores de painéis fotovoltaicos e realizar o cálculo instantâneo do FR. Finalmente, um perfil de insolação diária típica é utilizado para avaliar os principais algoritmos.
Electronic Ballast for HPS and HPMV Lamps Testing in Dimming Mode
Authors: Rodrigues Cláudio R. B. S. , Barbosa Pedro G. , Braga Henrique A. C.
Published: September 2018

This paper describes the analysis and design of an electronic ballast devised to drive both, high pressure sodium vapor (HPS) and high pressure mercury vapor (HPMV) lamps, in dimmed operation with no need of parameter modification. The main objective is to achieve weight and volume reduction of a public lighting components bench test equipment, used to perform basic operational tests in a Brazilian electric utility company. Specifically, the analysis, design and implementation of an electronic ballast, based on a series-parallel loaded resonant inverter, for 70 W HPS and 125 W HPMV lamps testing is presented. Experimental results from a lab prototype, performing high intensity discharge (HID) lamp tests in dimmed operation and no discharge arc instability, evidences the feasibility of the proposed ballast concerning the intended application.
Assessment of genetic diversity of some Siberian and Far Eastern species of the genus Spiraea (Rosaceae) by newly developed multiplex panels of nuclear SSR loci
Authors: Poliakova T. A. , Shatokhina A. V. , Bondarenko G. N. , Politov D. V.
Published: September 2018

Taxonomic and population genetic studies of the genus Spiraea (Rosaceae) species require new informative genetic markers. We screened 37 previously published heterologous oligonucleotide primer pairs for nuclear microsatellite loci and selected eight polymorphic and most reproducible of them for PCR multiplexing which substantially increases performance of routine mass genotyping. Three multiplex sets of 3, 3 and 2 loci, respectively, were developed and tested for ability to estimate the parameters of genetic variability and  population  structure in closely related species Spiraea ussuriensis, S. f lexuosa, S. chamaedryfolia representing seven natural populations of the Russian Far East and Siberia. Allele number ranged among loci from twelve (Spth20) to three. Among 41 alleles found, 7 were unique in some species/populations. Analysis of parameters of genetic variability in Spiraea spp. showed similar values of allele number per locus and observed heterozygosity among populations and slightly greater estimates of expected hete rozygosity in the samples of S. f lexuosa (NA = 2.387; HO = 0.387 ± ± 0.052; HE = 0.540 ± 0.055) as compared to S. ussuriensis (NA = = 2.781; HO = 0.385 ± 0.079; HE = 0.453 ± 0.072) and S. chamaedryfolia (NA = 2.875; HO = 0.331 ± 0.071; HE = 0.505 ± 0.069). The observed values of genetic polymorphism parameters indicate the average level of genetic diversity of the studied species typical to previous studies in Spiraea. About 19 % of the observed variability occurred among populations (FST = 0.191) while 81 % of the total genetic variation concentrated within the populations. The loci VS11, VS12, VS2, and VS6 contributed most to the observed differentiation. Nei genetic distances  between populations ranged from 0.049 to 0.585. Genetic differentiation patterns among studied populations based on allele frequencies of nuclear microsatellite loci correspond with their geographical location. Genetic composition of some samples contradicted with their provisional species identification.
Analysis of GH1, GHR and PRL gene polymorphisms for estimation of the genetic diversity of Buryat and Altai cattle breeds
Authors: Lazebnaya I. V. , Perchun A. V. , Lhasaranov B. B. , Lazebny O. E. , Stolpovskiy Yu. A.
Published: September 2018

Small and unique Buryat and Altai cattle breeds of TuranoMongolian origin are well adapted to harsh conditions of the continental climate to be their habitat. However, the population-genetic structure of the breeds has been poorly studied. This paper presents the results of analysis of polymorphisms GH1 (AC_000176.1: BTA 19, exon 5, rs41923484, g.2141C>G, L127V), GHR (AC_000177.1: BTA 20, exon 10, rs109300983, g.257A>G, S555G) and PRL (AC_000180.1: BTA 23, exon 3, g.35108342A>G) in the samples of Buryat cattle breed of Russia, China and Mongolia, and indigenous Altai cattle breed (Russia) that belong to TuranoMongolian cattle. The Russian sample of Buryat breed was differentiated from the Mongolian sample based on pairwise G-test and FST values for the PRL-RsaI polymorphism and from the Chinese sample – based on pairwise G-test values for the GH1-AluI polymorphism. All the three samples of Buryat breed clearly differed from the sample of Altai breed based on pairwise G-test and FST values for the GHR-AluI polymorphism as well as on the base of FST values for the joint polymorphism of the three genes. Nei’s genetic distances calculated from the three gene polymorphisms also confirmed the difference between the two breeds. The results of AMOVA demonstrated that GHR gene variability (16 %) gave the largest contribution to the differentiation that was confirmed by FST values (0.12–0.27). The STRUCTURE software enabled us to reveal four clusters, with a specific ratio for each sample, in the Chinese and Mongolian samples of Buryat breed, and in the sample of Altai breed, while the Russian sample of Buryat breed had only three clusters. The differences within the breed level were determined based on the GH1-AluI and PRL-RsaI polymorphisms, while at the inter-breed level – based on the GHR-AluI polymorphism. Linkage disequilibrium analysis demonstrated significant linkage of the following pairs of genes in the Buryat breed: GH1-GHR, GH1-PRL, GHR-PRL.
Impacto dos custos decorrentes da legislação tributária no setor publicidade e propaganda
Authors: Lima Ligiane Aparecida Bezerra , Rocha Luis Fernando da , Mengual Andre Luiz da Costa
Published: September 2018

O sistema tributário brasileiro tem complexidade significativa, gerando custos relativos à compreensão da legislação e alterações. Devido à escassa segregação dos custos de conformidade, entende-se a importância de ressaltar se as empresas têm se interessado por esses custos. O objetivo da pesquisa é conhecer como os custos de conformidade à tributação interferem no setor de Publicidade e Propaganda e se existe algum instrumento de medição. Realizou-se uma pesquisa exploratória com uma entrevista realizada com dois profissionais da área tributária visando a conformidade das agências perante o Fisco. O principal momento de impacto relativo aos custos de conformidade ocorre na implementação de novas obrigações exigidas pelo Fisco. Assim, a legislação se demonstra muito genérica e isso faz com que o contribuinte não consiga se identificar para encontrar a aplicabilidade da legislação, acarretando desgaste psicológico para o contribuinte, impossibitando o cálculo total do custo de conformidade relativa à tributação.
Gestão pública e prestação de contas: uma análise do índice de transparência
Authors: Bezerra Juliana Tammy Koga , Machado Ricardo De Queiroz , Morgan Levi , Calil José Francisco
Published: September 2018

A gestão pública possui diversas formas e ferramentas que auxiliam na transparência da prestação de contas. A população se torna uma das peças que contribui no ato de fiscalizar. Um fator primordial nessa conexão é a tecnologia da informação, pois é tão necessária quanto ter as leis para auxílio na fiscalização dos gastos públicos. O objetivo deste trabalho foi identificar o índice de transparência na prestação de contas pelos portais dos municípios paulistas de Campinas, Limeira, Americana, Sumaré e Hortolândia. A metodologia definida por Biderman e Puttomatti (2011), foi a ferramenta utilizada para a análise das informações, através dos sites governamentais. Após coleta, tabulação e análise dos dados verificou-se um maior índice de transparência na divulgação das informações nos sites dos municípios de Campinas, Americana e Limeira. Os municípios de Sumaré e Hortolândia apresentaram um menor índice de transparência no ano de 2015.
Epistemologia do método das partidas dobradas: considerações sobre aspectos históricos e métodos de ensino
Authors: Kettle Waggnoor Macieira , Kettle Lucas Barros
Published: September 2018

Este artigo tem por objetivo apresentar algumas reflexões sobre a epistemologia do Método das Partidas Dobradas (MPD), em seus aspectos teórico-conceituais e históricos, bem como métodos utilizados no processo de ensino e aprendizagem. Por meio de levantamento bibliográfico, de abordagem descritiva e qualitativa, o artigo expõe algumas teorias oriundas de estudos que fundamentaram o MPD em seusprimórdios. Isto se apresenta no contexto da Escola Europeia, a qual antecedeu a Escola Norte-Americana que, por sua vez, adotou o MPD como uma mera convenção contábil verificada e aceita pelas empresas até os dias atuais. Aspectos sobre o ensino também tiveram o seu lugar no artigo, no tocante a métodos adotados no processo educativo e de formação dos futuros contadores. Métodos como o do aluno participativo; o da sequência dos pontos; aplicação e origem de recursos; jogos de empresas; e causa e efeito.
Influence of Learning Design of the Formation of Online Communities of Learning
Authors: Jan Shazia K , Vlachopoulos Panos
Published: September 2018

This paper presents the findings of a study on a fully online Bachelor’s level course in Health Sciences at a European University conducted to explore the influence of learning design on the formation and evolution of different types of communities of learning. The impetus for the study came from the well-established effectiveness of community-based learning, a need for understanding learning design and analytics within networked structures and, the lack of theoretical grounding for social network analysis (SNA) in previous literature.  Our study uses the Integrated Methodological Framework (IMF) which employs SNA as the key methodology for exploring community-based learning in light of the Communities of Practice (CoP) and Community of Inquiry (CoI) frameworks. The course comprised of three differently designed successive discussion forums spanning three weeks each. Network diagrams and SNA measures clearly showed the impact of the different learning designs on student engagement in the discussion forums. Based on CoP and CoI structural components within the IMF, a comparative analysis of whole-network properties of the three networks indicated the formation of a CoP, initiated and mediated by the tutor in discussion 1, sustained by the students in discussion 2, and disintegrated due to lack of guidance and facilitation in discussion 3. Qualitative analysis on the content of discussion posts revealed the importance of group oriented messages in the formation of the CoP. The paper discusses findings in terms of implications for learning design and analytics in online learning and the role of the tutor in community formation.
Effect of Communication Management on Distance Learners’ Cognitive Engagement in Malaysian Institutions of Higher Learning
Authors: Kayode Bakare Kazeem
Published: September 2018

Rapid development of communication tools has brought about contentious issues in communication management in distance learning (DL) programs. The aim of this study is to investigate the relationships between communication management indicators, namely, communication practices, communication tools, and students' cognitive engagement in distance learning programs.  A conceptual framework for communication management was developed from Moore’s Transactional Distance Learning Theory (TDLT) and other existing literature. This study was conducted using quantitative research design. A questionnaire (a survey method) was used to elicit responses from 450 randomly selected in-service teachers from three Malaysian Public universities that offer blended mode distance-learning programs. Data analysis was conducted using Analysis of Moment Structures (AMOS) software to test the structural path of communication practices, communication tools, and students' cognitive engagement. Tests of hypotheses provided evidence of measures of fit statistics. The findings provide evidences that effective communication practices and communication tools have strong positive influence on distance students’ cognitive engagement.
Urban design and Sustainable Transport in Hill Towns
Authors: Sharma Puneet
Published: September 2018

Abstract

Urban agglomerations in hill towns of India have emerged as leading tourist destinations in the last decade. In the present scenario, most of these urban hill centers and cities in India are facing the infrastructure related problems to cater the growing demand especially in its transportation network and system. This situation demands for redefining the complex urban form of hills for sustainable growth. Hill towns have their own specific urban form attributes associated with location specific climatic, geographical, cultural and environmental conditions. Urban design measures address urban form to its uppermost intensity with strong theoretical base. This is where the role of urban design for formulating the future development in hills becomes critical for achieving desirable urban growth in future. In the present context, Shimla town has been taken as study area. Shimla also known as queen of hills is experiencing growth in all directions and city core is facing huge problems especially related to its infrastructure. High inflow of floating population has resulted in the major breakdown in its transport system. This alarming situation calls a need for introducing alternative routes and modes for inter-city connectivity.This research is an attempt to address these issues from urban design perspective. The idea of this research is to guide sustainable urban form while defining the influence of transport mode and route choice for energy efficient hill city. Park system and public places along the multimodal corridor will also improve the travel experience in hill city. Henceforth inducing alternative modes of transportation will completely redefine the urban form of hill areas. One can conclude that urban design approach helps in improving the visual qualities of movement corridors.
Is Consumption of 100% Orange Juice a Risk Factor for Overweight and Diabetes?
Authors: Brouns Fred
Published: September 2018

Much epidemiological research confirms a correlation between a high consumption of sugar sweetened beverages and obesity, diabetes and cardiovascular diseases. In many of these studies, soft drinks, fruit drinks with added sugars and 100% fruit juices without added sugars were considered as one separate category and the total consumption was calculated cumulatively. Being able to make statements about the effects of individual types of drinks, as present in these clusters, is therefore impossible. However, recent data from well-controlled studies and meta-analyses on consumption of 100% fruit juice show that there is no effect on diabetes risks. Adults and children who choose to drink 100% juice appear to have a healthier lifestyle, consume better quality food and usually have a more favorable body weight. Although 100% fruit juice in relation to soft drinks contains a range of nutrients that are considered to be beneficial for health, the associated positive effects can be nullified by high sugar intake, in case of excessive consumption. That is why a golden rule can be applied: "100% fruit juice, as part of a healthy diet, is a healthy choice provided that you do not consume more juice than present in max. 1-3 fruits at a time. In the case of orange juice, this corresponds to a champagne glass full of juice (100-150ml). In this respect 100% fruit juice should be perceived as a nutritional drink that can be consumed with a meal and not as a thirst quencher.
The R^2 and the Seven Events in Hong Kong: A New Look at Return Synchronicity and Price Efficiency
Authors: Cai Jinghan , Li Fengyun , Petsas Iordanis
Published: September 2018

This paper identifies a dilemma in the relationship between R^2 and price efficiency: After comprehensively studying the R^2 change around 7 well-known corporate events, neither the traditional understanding of R^2 as price inefficiency, nor the behavioral way of R^2 as price efficiency can explain the observed R^2 change around the events. We adopt an alternative methodology to replace the standard difference-in-difference regression and directly decompose the R^2 change. We find that, due to the endogeneity of events, the changes of R^2 are over-estimated. We further propose that in the event study setting, the R^2 change may be simply the consequence of the inflow/outflow of some trend-chasing investors, and it may be detached from price (in) efficiency. Empirical evidences are consistent with this hypothesis.
Financially Qualified Audit Committee Member and Corporate Sustainability: Evidence from Emerging Economy
Authors: Banbhan Ashfaque , Cheng Xinsheng , Ud Din Nizam
Published: September 2018

This paper examines the relationship between financial qualification of the audit committee (AC) chairman on corporate sustainability (CS) in developing the economy of Pakistan, which has a weak corporate environment. In a sample of companies listed on Pakistan Stock exchange (PSX) during 2010-2014. Empirical results of 1020 firm-year observations indicate that the presence of financially qualified AC chairman has a positive relationship with firm’s accrual quality. The results found that accounting qualification of AC chairman has significant positive relation with CS performance. Furthermore, the study found that powerful CEO is also not able to influence CS in the presence of accounting qualified AC chairman, but this result is not present if AC chairman is non-accounting qualified. This study extends the literature on the impact of accounting qualification of AC members and CS and offers some significant understanding into efficient corporate practices to achieve sustainability goals. This study suggests the presence of accounting qualified member in AC which results in effective monitoring for the increased financial performance of the organization.
The Earth's Gold: Where Did It Really Come From?
Authors: Tito Elizabeth P. , Pavlov Vadim I.
Published: September 2018

Why is it that in the neighborhood of a calm ordinary star (the Sun) located at the quiet periphery of its galaxy (the Milky Way), non-native heavy elements are abundant in such concentrated form? Where did these elements really come from? Where did Earth's gold come from? Our analysis of the known data offers a fact-reconciling hypothesis: What if, in the early solar system, an explosive collision occurred -- of a traveling from afar giant-nuclear-drop-like object with a local massive dense object (perhaps a then-existent companion of the Sun) -- and the debris, through the multitude of reaction channels and nuclei transformations, was then responsible for (1) the enrichment of the solar system with the cocktail of all detected exogenous chemical elements, and (2) the eventual formation of the terrestrial planets that pre-collision did not exist, thus offering a possible explanation for their inner position and compositional differences within the predominantly hydrogen-helium rest of the solar system.
A Convenient, Soil-Free Method for the Production of Root Nodules in Soybean to Study the Effects of Exogenous Additives
Authors: Roy Choudhury Swarup , Johns Sarah M. , Pandey Sona
Published: September 2018

Legumes develop root nodules that harbour endosymbiotic bacteria, rhizobia. These rhizobia convert nitrogen to ammonia by biological nitrogen fixation. A thorough understanding of the biological nitrogen fixation in legumes and its regulation is key to develop sustainable agriculture. It is well known that plant hormones affect nodule formation; however, most studies are limited to model legumes due to their suitability for in vitro, plate-based assays. Specifically, it is almost impossible to measure the effects of exogenous hormones or other additives during nodule development in crop legumes such as soybean as they have huge root system in soil. To circumvent this issue, the present research develops suitable media and growth conditions for efficient nodule development under in vitro, soil free conditions in an important legume crop, soybean. Moreover, we also evaluate the effects of all major phytohormones during soybean nodulation under identical conditions. This versatile, inexpensive, scalable and simple protocol provides several advantages over previously established methods. It is extremely time-and resource-efficient, does not require special training or equipment, and produces highly reproducible results. The approach is expandable to other large legumes as well as for other exogenous additives.
Regression Models with Stochastic Regressors: An Expository note
Authors: Bharali Sulaxana , Hazarika Jiten
Published: September 2018

Regression models form the core of the discipline of econometrics. One of the basic assumptions of classical linear regression model is that the values of the explanatory variables are fixed in repeated sampling. However, in most of the real life cases, particularly in economics the assumption of fixed regressors is not always tenable. Under a non-experimental or uncontrolled environment, the dependent variable is often under the influence of explanatory variables that are stochastic in nature. There is a huge literature related to stochastic regressors in various aspects. In this paper, a historical perspective on some of the works related to stochastic regressor is being tried to pen down based on literature search.
ANALISIS SEQUENTIAL EXPLANATORY PARTISIPASI SISWA DALAM PELESTARIAN LINGKUNGAN DITINJAU DARI ASPEK PERSEPSI SISWA TENTANG SEKOLAH BERBUDAYA LINGKUNGAN
Authors: Istiana Rita , Islamiah Nani Inri , Sutjihati Susi
Published: September 2018

Abstract

 

This research has been conducted on March to November 2016, the study population is students at state senior high school 5 and  state senior high school 8 cities Bogor. The research method uses sequential analysis explanatory research with the aim to determine the level of correlation between the variables of students' perceptions of the school environment cultured with student participation in environmental conservation and explore factors - factors that affect the level of student participation in environmental conservation. Based on the research and analysis of data, it can be concluded that there is a very low among school students' perceptions about the environment cultured with student participation in environmental conservation. The relationship shown by the regression equation Y = 111.08 + 0.074 X with a correlation coefficient rx = 0.042 and determination coefficient rxÂ² = 0.002. The factors affecting the level of student participation in the preservation of the environment is a factor internal and eksternal. Internal factor is factor self-awareness, knowledge and motivation, eksternal factor is factor intercomunication, peers, family and community.

 

Keyword : perceptions of the school environment cultured, participation in environmental conservation

 

Abstrak

 

Penelitian ini telah dilakukan pada Maret sampai November 2016, populasi penelitian ini adalah siswa- siswi di SMA Negeri 5 dan SMA Negeri 8 Kota Bogor. Metode penelitian menggunakan analisis sequential explanatory dengan tujuan penelitian untuk mengetahui tingkat korelasi antara variabel persepsi siswa tentang sekolah berbudaya lingkungan dengan partisipasi siswa dalam pelestarian lingkungan dan menggali factor â€“ factor yang mempengaruhi tingkat partisipasi siswa dalam pelestarian lingkungan. Berdasarkan hasil penelitian dan analisis data, dapat ditarik kesimpulan bahwa terdapat hubungan yang sangat rendah antara persepsi siswa tentang sekolah berbudaya lingkungan dengan partisipasi siswa dalam pelestarian lingkungan. Hubungan tersebut ditunjukan oleh persamaan regresi Å¶ = 111,08 + 0,074 X dengan koefisien korelasi rx = 0,042 dan koefisien determinasi rxÂ² = 0,002. Adapun factor factor yang mempengaruhi tingkat partisipasi siswa dalam pelestarian lingkungan adalah  faktor interen dan eksteren. Faktor interen yaitu faktor kesadaran diri sendiri, pengetahuan dan motivasi, faktor eksteren yaitu faktor pergaulan, teman sebaya, keluarga dan masyarakat.

 

Kata Kunci : persepsi siswa tentang sekolah berbudaya lingkungan, partisipasi pelestarian lingkungan
Reading Metacognitive Strategies Employed by ESL Learners
Authors: Razak Noor Zainab Abdul , Gani Nur Ashikinbinti Abdul , Ithnin Nur Hazirah Che
Published: September 2018

This study aims to investigate the relationship between the metacognitive reading strategies employed by the ESL learners in a secondary school in Malaysia and their English proficiency. The objective of this study is to identify the types of metacognitive strategies employed by students while reading academic text. In addition, this study also aims to investigate the differences (if any) in metacognitive strategies employed by the high and low English proficiency students while reading academic text. The respondents of this research are forty students with high and low English proficiency and were selected randomly. This study is using the quantitative research method where questionnaire is used to obtain the data. Metacognitive Awareness of Reading Strategies Inventory (MARSI) was used as the measuring tools to identify the metacognitive reading strategies employed by the students. The result of this study shows that the students employed the three metacognitive strategies which are Global Reading Strategies (GLOB), Supporting Reading Strategies (SUP) and Problem-Solving Reading Strategies (PROB). In addition, the mostly employed metacognitive reading strategy was Global Reading Strategies (GLOB), followed by Supporting Reading Strategies (SUP) and Problem-Solving Reading Strategies (PROB). As a conclusion, metacognitive reading strategies can be implemented by secondary school English language teachers in their teaching as it beneficial in helping learners’ comprehension.
Using Computer Technology in the ESL Writing Class
Authors: Razak Noor Zainab Abdul , Ameruddin Amira Syafiqah , Ithnin Nur Hazirah Che
Published: September 2018

Using computer and the Internet allow students and teachers to interact with one another with no boundaries and this affects the students’ attitude and their motivation in learning. This study focuses on the attitude, motivation and performances of ESL learners in learning writing using Google Docs. The quantitative instruments consisted of questionnaire, pre-test, and post-test while the qualitative instruments consisted of interview recordings and the treatment sessions. The results from the questionnaire were used to identify the attitude and motivation of the students while the results from the pre-test and post-test were used to determine the students’ performances after the use of Google Docs. The result of the study showed that the students had positive attitude toward the use of Google Docs in learning and were also motivated to learn. Google Docs manage to encourage them to write better, and there were improvements in learners’ performances. They were able to generate more ideas and organized their writing accordingly. As a conclusion, Google Docs should be implemented by teachers to teach process writing as the tool can motivate the students to learn better.
Pelatihan Seni Tari Kreasi Baru Bagi Guru SD di Kecamatan Jabung Kabupaten Malang
Authors: Chrisyarani Denna Delawanti , Werdiningtiya Ratih Kartika
Published: September 2018

This service aims to improve the ability of teachers in the art of dance and can improve the learning of dance both intra and ekstrakurikuler in each school District Jabung. Activities ranging from first up to seven the session on 6-8 October 2017 at 08.00-16.00 began delivering material insights into art education, basic dance malangan motion, range of motion dance bantengan parts 1 to 3, followed by create design patterns floors and practice. The results of the implementation of the activities have been implemented according to the plan, it is expected that the teacher can innovate in the learning of dance, what has been accepted teacher applied in the learning that they carry out.
The Phosphorus Transfer Continuum: A Framework for Exploring Effects of Climate Change
Authors: Forber K. J. , Withers P. J. A. , Ockenden M. C. , Haygarth P. M.
Published: September 2018

Core Ideas

Climate change effects on the P transfer continuum are examined.

P export and eutrophication will likely increase under a changing climate.

Climate change effects on catchment P processing are complex and poorly understood.

Modeling of P flows and catchment P buffering is needed to inform management.

Research should consider the effects of climate change on each tier of the continuum.

Phosphorus inputs to agriculture and their fate in the environment contribute to poor water quality and degradation of linked ecosystem services at great cost to society. Climate change is likely to alter the forms and timings of P fluxes from land to water and their ecological impact, the effects of which are uncertain and need to be considered to inform future catchment management for eutrophication control. The P transfer continuum is an established conceptual model that we propose as a suitable framework to consider the potential effects of climate change on catchment P transfer. Consideration of this continuum suggests that predicted changes in temperature and precipitation will likely increase P transfer and associated eutrophication costs in some regions. Further research should examine climate change effects on each tier of the continuum to inform the necessary land management adaptations and transformations to ensure future food system P efficiency and resilience.
Potato Tuber Yields in Semi‐Arid Environments are Increased by Tillage and Mulching Practices
Authors: Hou Xianqing , Li Rong
Published: September 2018

Core Ideas

Tillage systems and mulching practices affected potato production.

Polythene film and straw mulch significantly improved soil water‐temperature status.

Tillage and mulching practices increased emergence and promoted seedling growth.

No‐tillage and subsoiling with straw mulch significantly increased potato tuber yield.

A 2‐yr field study was conducted in semiarid region of China, from 2014 to 2015 to determine the impact of tillage (conventional tillage [CT], subsoiling [ST], and no‐tillage [NT]) and mulching practices (transparent polythene film mulch (PM), and maize [Zea mays L.] straw mulch [SM], no mulch [NM]) on soil moisture conservation in the fallow period, variations of soil moisture profile, topsoil temperature, growth in the seedling period, the potato (Solanum tuberosum L.) tuber yield. Among the tillage systems, the mean soil water storages in SM and PM plots were increased by 6.3 and 5.9%, respectively, compared to NM plot. The soil water storage was significantly 7.6% higher during potato seedling growth in the SM than the NM treatment. The polythene film mulch increased the mean topsoil temperature 2.4°C, whereas the straw mulch reduced the temperature 3.0°C during emergence. Meanwhile, PM and SM were more effective at increasing the emergence, plant height, stem diameter , and biomass accumulation at seedling stage of potato, compared with NM. Among all the tillage and mulching treatments, the highest mean potato tuber yields and marketable tuber rates were obtained under the case of subsoiling in combination with straw mulch (ST×SM) and no‐tillage in combination with straw mulch (NT×SM), which were significantly higher by 41.0, 35.3, and 13.7%, 6.5% than that of conventional tillage in combination with no mulch (CT×NM). The conservation tillage (no‐tillage and subsoiling) combined with straw mulch has a great potential to be adopted in the semiarid Loess Plateau region.
Vadose Zone Gas Migration and Surface Effluxes after a Controlled Natural Gas Release into an Unconfined Shallow Aquifer
Authors: Forde O.N. , Mayer K.U. , Cahill A.G. , Mayer B. , Cherry J.A. , Parker B.L.
Published: September 2018

Core Ideas

Subsurface gas migration results in localized surficial CH4 releases.

Surficial CH4 emissions show pronounced temporal variations.

Methane concentrations in soil gas exceed lower explosive limits at low leakage rates.

Increasing CO2 effluxes and stable C isotope signatures indicate vadose zone CH4 oxidation.

Instantaneous surficial effluxes do not indicate the magnitude of subsurface gas leakage rates.

Shale gas development has led to concerns regarding fugitive CH4 migration in the subsurface and emissions to the atmosphere. However, few studies have characterized CH4 migration mechanisms and fate related to fugitive gas releases from oil or gas wells. This paper presents results from vadose zone gas and surface efflux monitoring during a natural gas release experiment at Canadian Forces Base Borden, Alliston, Ontario, Canada. Over 72 d, 51 m3 of natural gas (>93% CH4) was injected into a shallow, unconfined sand aquifer at depths of 4.5 and 9 m. Methane and CO2 effluxes in combination with soil gas concentrations and stable C isotopic signatures were used to quantify the spatiotemporal migration and fate of injected gas. Preferential gas migration pathways led to vadose zone hot spots, with CH4 concentrations exceeding the lower explosive limit (5% v/v). From these hot spots, episodic surface CH4 effluxes (temporally exceeding 2500 μmol m−2 s−1 [3465 g m−2 d−1]) occurred during active injection. Higher injection rates led to increased average CH4 effluxes and greater lateral migration, as evidenced by a growing emission area approaching 25 m2 for the highest injection rate. Reactive transport modeling showed that high CH4 fluxes resulted in advection‐dominated migration and limited CH4 oxidation, whereas lower CH4 effluxes were diffusion dominated with substantial CH4 oxidation. These results and our interpretations allowed us to develop a conceptual model of fugitive CH4 migration from the vadose zone to the ground surface.
What Is a Digital Electronic Portfolio in Teacher Education? A Case Study of Instructors’ and Students’ Enabling Insights on the Electronic Portfolio Process | Qu'est-ce qu'un portfolio numérique dans la formation des enseignants? Étude de cas sur les perspectives d’enseignants et d’étudiants concernant le processus du portfolio numérique.
Authors: Hopper Timothy Frank , Fu Hong , Sanford Katherine , Monk David
Published: September 2018

Professional programs in postsecondary education have long been using electronic portfolios (ePs) for diverse purposes, for example, assessment, certification, showcasing, and learning. However, in our practices of using ePs in teacher education for the past several years, we have found that the question of “what is an eP?” requires substantial unpacking. This paper will offer insights on our evolving understanding on ePs in teacher education based on three interacting areas: (a) rich media reframing how we understand professional learning in a digitally linked world; (b) literature from the last 10 years in the use of ePs; and (c) insights from instructors and students using an eP process in one term of a teacher education program. We conclude with a re-visioning of learning in teacher education in relation to the emerging practices enabled by an eP process.Les programmes professionnels d’éducation supérieure utilisent depuis longtemps des portfolios numériques à des fins diverses, comme l’évaluation, la certification, la mise en valeur et l’apprentissage. Cependant, notre expérience des dernières années relative à l’utilisation des portfolios numériques dans la formation des enseignants révèle que la définition du portfolio numérique nécessite un examen approfondi. Le présent article offre un aperçu de notre conception, toujours en évolution, des portfolios numériques dans la formation des enseignants, basée sur trois domaines en interaction: (a) des contenus médiatiques riches qui restructurent la manière dont nous comprenons l’apprentissage professionnel dans un monde interconnecté par le numérique; (b) la littérature des dix dernières années sur l'utilisation des portfolios numériques; et (c) les perspectives d’instructeurs et d’étudiants ayant utilisé des portfolios numériques durant un trimestre d'un programme de formation des enseignants. En conclusion, nous réimaginons l'apprentissage dans la formation des enseignants en tenant compte des pratiques émergentes rendues possibles par les portfolios numériques.
Counterdiabatic Hamiltonians for multistate Landau-Zener problem
Authors: Nishimura Kohji , Takahashi Kazutaka
Published: September 2018

We study the Landau–Zener transitions generalized to multistate
systems. Based on the work by Sinitsyn et al. [Phys. Rev. Lett.
120, 190402 (2018)], we introduce the
auxiliary Hamiltonians that are interpreted as the counterdiabatic
terms. We find that the counterdiabatic Hamiltonians satisfy the zero
curvature condition. The general structures of the auxiliary
Hamiltonians are studied in detail and the time-evolution operator is
evaluated by using a deformation of the integration contour and
asymptotic forms of the auxiliary Hamiltonians. For several spin models
with transverse field, we calculate the transition probability between
the initial and final ground states and find that the method is useful
to study nonadiabatic regime.
HPV-associated anogenital condylomas: clinical-morphological aspects and therapy principles
Authors: Nazarova N. M. , Nekrasova M. E. , Prilepskaya V. N. , Gusakov K. I. , Trofimov D. Yu.
Published: September 2018

HPV infects epithelial tissues regardless of their location and penetrates into the cell through microscopic cuts. The clinical manifestations of HPV-associated diseases are diverse and equally relevant for women and men. Despite the fact that exophytic condylomas are regarded as a benign disease and establishing diagnosis does not cause difficulties, a clinician should always have oncological alertness, especially with regard to diffuse, long-lasting condylomatosis.
Anti-aging supplementation with famvital system: influence on aging and health (clinico-pharmacological dossier, evidence-based medicine results)
Authors: Gromova O. A. , Sorokina M. A. , Rachteenko A. V. , Rudakov K. V.
Published: September 2018

Data on 16 components of the anti-age system for the diet enriching with the Famvital are presented. Information about fundamental and clinical researches on the anti-aging role of the complex components are presented. The anti-age effects of plant extracts, vitamins and trace elements included in the morning and evening capsules of the Famvital system are analyzed in detail.
Therapy for urogenital disorders in postmenopausal women
Authors: Ovsyannikova T. V. , Kulikov I. A.
Published: September 2018

Data are presented on the stages of aging of the female reproductive system and the symptoms developing in these age periods. It is noted that the pathogenesis of development of urogenital disorders are connected with decrease in the level of estrogens in the peri- and postmenorausal period. Effective therapy for women with vaginal atrophy is the administration of estriol preparations (Оvestin) in the form of a cream or vaginal suppositories.
Prevention of fetal growth restriction in placental insufficiency
Authors: Khachatryan Z. V. , Lomova N. A. , Khachatryan A. A. , Tyutyunnik V. L. , Kan N. E.
Published: September 2018

The occurrence and development of such complications of pregnancy as preeclampsia, placental insufficiency, fetal growth restriction can be mediated by the systemic vascular damage. Understanding the pathophysiological mechanisms in the mother-placenta-fetus system contributes to the improvement of diagnostic methods and the selection of pathogenetically valid therapy for certain obstetric complications. In the systemic inflammatory response syndrome accompanying obstetric complications, the uncontrolled and excessive activation of proinflammatory mediators occurs, which leads to generalized tissue damage and development of multiple organ failure.

The use of antiplatelet agents at a preventive dose in pregnant women with high risk of placental insufficiency and fetal growth restriction contributes to the reduction of systemic and placental blood flow disorders by affecting the vascular endothelium, increasing the synthesis of prostacyclin and nitric oxide, thereby implementing its angioprotective properties and increasing blood flow in the arteries and existing collaterals.

The obtained data showed that adding of dipyridamole to the algorithm for managing pregnant women with high risk of placental insufficiency and fetal growth restriction, starting from the II trimester of gestation allows to reduce the risk of endotheliopathy and thrombophilia, improve obstetric and perinatal outcomes.
Non-contraceptive effects of microdose folate-containing oral contraceptive in patients of child bearing age
Authors: Sokolova T. M. , Makarov K. Yu. , Kiseleva T. V. , Yakimova A. V.
Published: September 2018

The article provides a summary of the evaluation of efficacy of folate-containing oral contraceptive (Yaz® plus) containing gestagen with antiandrogenic and antimineralocorticoid effect, which, neutralizes the symptoms of primary dysmenorrhea in addition to preventing unwanted pregnancies, and also has registered indications for the treatment of acne.
Structural and Biological Overview of Boron-containing Amino Acids in the Medicinal Chemistry Field
Authors: García Antonio Abad , Rayevsky Alexey , Andrade-Jorge E. , Trujillo-Ferrara José G.
Published: September 2018

Background:

Amino acids are the basic structural units of proteins as well as the
precursors of many compounds with biological activity. The addition of boron reportedly induces
changes in the chemical-biological profile of amino acids.

Methods:

We compiled information on the biological effect of some compounds and discussed
the structure-activity relationship of the addition of boron. The specific focus presently
is on borinic derivatives of α-amino acids, the specific changes in biological activity caused
by the addition of a boron-containing moiety, and the identification of some attractive compounds
for testing as potential new drugs.

Results:

Borinic derivatives of α-amino acids have been widely synthesized and tested as potential
new therapeutic tools. The B-N (1.65 A°) or B-C (1.61 A°) or B-O (1.50 A°) bond is
often key for the stability at different pHs and temperatures and activity of these compounds.
The chemical features of synthesized derivatives, such as the specific moieties and the logP,
polarizability and position of the boron atom are clearly linked to their pharmacodynamic and
pharmacokinetic profiles. Some mechanisms of action have been suggested or demonstrated,
while those responsible for other effects remain unknown.

Conclusion:

The increasing number of synthetic borinic derivatives of α-amino acids as well
as the recently reported crystal structures are providing new insights into the stability of these
compounds at different pHs and temperatures, their interactions on drug targets, and the ring
formation of five-membered heterocycles. Further research is required to clarify the ways to
achieve specific synthesis, the mechanisms involved in the observed biological effect, and the
toxicological profile of this type of boron-containing compounds (BCCs).
Sexualidade humana no currículo escolar do 7º ano na abordagem do livro didático
Authors: Reis Elaine Geralda dos , Teixeira Érica , Pereira Saulo Gonçalves
Published: September 2018

A sexualidade humana é algo inerente ao indivíduo, e deve ser tratada com naturalidade e, sobretudo, na escola, onde os professores têm papel fundamental na construção de conceitos, orientações em prol da saúde e bem estar. Objetivou-se verificar como o tema “sexualidade humana”, está inserido no currículo escolar do 7º ano, fazendo um estudo sobre a sexualidade humana no contexto escolar, através de um levantamento em 10 livros didáticos do ensino público, analisando-se como o tema é apresentado. A metodologia foi o método qualitativo exploratório de pesquisa em referencial bibliográfico. Diante desses resultados, sugere-se a implantação de debates de temas sobre saúde sexual nas escolas, voltado não somente para alunos, mas também para pais e para a comunidade. As temáticas tratadas na “educação sexual” são informações indispensáveis à formação integral da criança e do adolescente e são tratadas de forma ínfima nos livros didáticos.