bluuebunny/crossref_metadata_2025 huggingface dataset:
SEMI-AUTOMATED TOPOLOGY ADJUSTMENT OF PARTIAL WALL GEOMETRY
Authors: Bassier M. , Vergauwen M.
Published: December 2019

Abstract. The reconstruction of Building Information Modeling objects for as-built modeling is currently the subject of ongoing research. A popular method is to extract building information from point cloud data to create a set of parametric objects. The automation of this process is highly desired by the industry but is currently hindered by occlusions, clutter and the complexity of the building geometry. To create an as-built BIM, it is vital to not only accurately reconstruct the building’s structure but also to compute the topology between the objects. More specifically, we target the topology of the reconstructed partial wall geometry as this forms the basis for other objects.In this work, a novel method is presented to automatically adjust the topology of wall geometry in an as-built BIM. We present a semi-automated method that procedurally evaluates the configuration of reconstructed objects and adjusts them to create a more faithful BIM. A wall connection evaluation algorithm is proposed that takes as input the centrelines of partial wall geometry and a set of floor and ceilings mesh segments and outputs the topologically adjusted objects. The method is tested on a variety of scenes and shows promising results to reliably compute the topology of as-built models. The generated geometry is similar to the geometric modification proposed by expert modelers. A key advantage is that the algorithm operates directly in Revit and Rhino and can be used for new models as well as for updating existing models.
ANALYSIS OF POSSIBILITIES OF LOW-COST PHOTOGRAMMETRY FOR INTERIOR MAPPING
Authors: Dlesk A. , Vach K. , Holubec P.
Published: December 2019

Abstract. This paper shows the possibilities of using low-cost photogrammetry for interior mapping as a tool to gather fast and accurate data for 3D modelling and BIM. To create a 3D model of a building interior with a high level of detail requires techniques such as laser scanning and photogrammetry. In the case of photogrammetry, it is possible to use standard cameras and SfM software to create an accurate point cloud which can be used for 3D modelling and then for BIM. The images captured indoor are often captured under lower light conditions. Using different exposure during capturing of images of building interior was tested. Frequent plain walls of a building interior cause that the images are usually lack of any features and their photogrammetric processing is getting much more difficult. In some cases, results of photogrammetric processing are poor and inaccurate. In this paper, an experiment of creating a 3D model of a building interior using photogrammetric processing of images was carried out. For this experiment digital camera with two different lenses (16 mm lens and fisheye lens) was used. For photogrammetric processing were chosen different software. All the results were compared to each other and to the laser scanning data of the interior. At the end of the paper, the discussion of the advantages and disadvantages of the shown method has been made.
CAPACITY DEVELOPMENT AND EDUCATION OUTREACH IN GEOINFORMATICS AND LAND MANAGEMENT: A CASE OF DEPARTMENT OF GEOMATICS ENGINEERING, KATHMANDU UNIVERSITY
Authors: Ghimire S.
Published: December 2019

Abstract. The capacity development and education outreach in Geoinformatics and Land management is very important for the development of any country. The aim of this paper is to highlight the existing capacity development and education outreach in Geoinformatics and Land Management at Department of Geomatics Engineering and draws attention of all national and international geospatial community for their contributions to promote capacity development and education outreach in Geoinformatics and Land Management sectors in Nepal. The desk study has been carried out for the study by reviewing literature and using secondary data sources. This study analyzes an aspects , challenges and opportunities in collaborative efforts made by Kathmandu University and Land Management Training Center to become a center of excellence in these sectors. The study reveals that “To make Geoinformatics and Land Administration, a leader course in Nepal and also within the region”, Kathmandu University has to overcome various challenges. Some challenges may be addressed in the national level but some require collaborations and cooperation from international geospatial community. The result indicates that the capacity development and education outreach in Geoinformatics and Land Management sector helps to develop quality geospatial professionals which in turn may incorporate the entire South Asia region as a potential Geospatial and Land Management market. Finally, Kathmandu University, Department of Geomatics Engineering is committed to develop a centre of excellence in Geoinformation and Land management sector by providing quality education, research and development.
APPLICATION OF THREE-DIMENSIONAL SCENE TECHNOLOGY IN LAND MANAGEMENT
Authors: He G. B. , Zhang X. D. , Zhang R.
Published: December 2019

Abstract. The traditional two-dimensional technology is mainly used to describe and analyze the plane position and mutual relationship of geographical entities, and the land use is developing towards the three-dimensional trend; facing the new trend, the traditional two-dimensional technology cannot meet the requirements of the three-dimensional land management. In this paper, the characteristics of three-dimensional technology are described in detail, and the applicability of three-dimensional technology to land management is analyzed. Finally, the application effect of three-dimensional technology in land management is verified through the actual project.
THE STUDY OF HEAT ISLAND AND ITS RELATION WITH URBANIZATION IN GURUGRAM, DELHI NCR FOR THE PERIOD OF 1990 TO 2018
Authors: Kushwaha S. , Nithiyanandam Y.
Published: December 2019

Abstract. Rapid growth in population and land cover makes urban areas more vulnerable to Urban Heat Island. Due to which, cities experience higher mean temperature than its proximate surrounding rural or non-urban area. The relationship between UHI and urbanization is proven in previous studies. Delhi the capital city of India is well known for its extreme heat condition in summer and air pollution. In this study, an attempt has been made to understand UHI behavior in a satellite town of Delhi. Satellite town or cities are the small independent towns built in the vicinity of a large city or metropolitan city. In this paper 4 major satellite towns of Delhi, i.e. Gurugram (name changed from Gurgaon in April 2016), Noida, Faridabad and Ghaziabad has been studied to understand the changing trends in urbanization and temperature. The parameters used are rate of urban expansion, population density, GDP growth and increasing temperature over the last two decades. Gurugram showed the maximum urbanization and identified as study area. Gurugram has undergone a major growth journey from being a small town to ‘The Millennium city’ of the country in a short span. The Landsat images of past three decades ranging from different time period i.e. 1990, 1996, 2002, 2009, 2014 and 2018 were investigated by applying integrated approach of GIS and Remote sensing. The images represent the condition of UHI and urbanization in different period. The temporal change in LULC was used to study the rate of urban growth in last three decades. The results showed the increase in built-up area out of the total area of Gurugram from 10% (i.e.50.6 sq. km) in 1990 to 17.25% (80.5 sq. km) in 2002 which further increased to 45.1% (210.4 sq. km) in 2018. Thermal Infrared band of Landsat series were used to retrieve land surface temperature (LST) intensity of the study period. The results show a positive correlation (r = 0.46) between impervious surfaces and LST. The results of the study could be helpful in identifying the causative factors and level of impacts in different zones and also enable us to develop a mitigation strategy based on spatial decision support system.
E-CAD: WEB-BASED INFORMATION SERVICE FOR LAND MANAGEMENT
Authors: Neupane M. , Jaiswal R. , Khati R. , Dhakal S. , Sharma S.
Published: December 2019

Abstract. The status quo of the land management and information system in Nepal is a far cry from where the developed world stands. Paper-based system is still the spine of this system which is tedious, less accurate and difficult to store and update. So, there is a need for a digitized system providing country’s land authorities with a powerful tool that creates a unified platform for the creation of an accurate spatial database, timely maintenance and updating of the database in a dynamic web platform. The database including spatial data of land features can be utilized to create a web-based thin-client mapping application which meets the needs of all the stakeholders (government authorities from Survey Offices, Land Revenue Offices, Land Reform Offices, etc.). This paper shows the use of open-source software for the creation of a web mapping system including QGIS, PostGIS extension of PostgreSQL for spatial database, HTML for markup, CSS for styling, JavaScript, Leaflet, Open-Layers for client-side scripting and Geo-Django for backend designing. The developed methodology can be utilised for the preparation of an interactive thin-client web mapping server that enables general users to dynamically view data, zoom, pan and search from the database and obtain land information. The login system enables administrators with various access to upload, verify and edit data along with performing various spatial operations while the super admin is entitled to access to the PostgreSQL database. The major finding is that the use of a thin client application for a land information system is beneficial for all stakeholders. It is also a measure of the performance of land authorities allowing better planning, preparedness, and allocation of resources.
ESTIMATION OF FOREST COVERAGE IN NORTHERN REGION OF MONGOLIA USING SENTINEL AND LANDSAT DATA
Authors: Norovsuren B. , Renchin T. , Tseveen B. , Yangiv A. , Altanchimeg T.
Published: December 2019

Abstract. This paper aims to apply Forest Index (FI) and to determine forest coverage in the study area. The study area (49° 15ʹ to 49° 10ʹ N and 104° 05ʹ to 104° 15ʹ E) is located in the northern region of Mongolia and consist of mixed forest. Larch forest (86.12%) is dominating in the study area. The Sentinel-2 satellite data for the years 2015–2019 were used in the research. The land surface temperature (LST) was produced from Landsat-8 OL. FI methodology was applied for the Sentinel data in order to estimate larch forest coverage. The output map of forest coverage was compared with ground truth measurements and thematic map. The agreement between FI map and ground measurement was 85%. LST from Landsat and FI from Sentinel were sampled in to same size. The relationship between LST (Landsat-8) and FI (Sentinel-2) was reasonable (R = 0.5). FI index and LST is applicable for different forest type in the region.
ESTIMATION OF ABOVE GROUND FOREST BIOMASS USING ULTRA HIGH RESOLUTION UAV IMAGES: A CASE STUDY FROM BARANDABHAR FOREST, NEPAL
Authors: Panday U. S. , Shrestha N. , Maharjan S.
Published: December 2019

Abstract. Forest biomass is the sum of above ground living organic material contained in trees which is expressed as dry weight per unit area. Forest biomass acts as substantial terrestrial carbon sinks, they are estimated to absorb 2.7 Petagrams of carbon per year, as such accurate estimation of forest carbon stock is very important. The estimation of biomass is also important because of its application in commercial exploitation as well as in global carbon cycle. Particularly in the latter context, the estimation of the total above-ground biomass (TAGB) with sufficient accuracy is vital in reporting the spatial and temporal state of forest under the United Nations Framework Convention on Climate Change (UNFCCC), Reducing Emissions from Deforestation in Developing Countries (REDD). In this research, tree height, DBH and crown cover were measured using field instruments. Individual ultra-high-resolution UAV images acquired using customized Visible-NIR, were georeferenced and tree crown were extracted using multi-resolution segmentation. A regression equation between field measured biomass and Crown Projection Area (CPA) was developed. The paper presents results from Barandabhar Forest of Chitwan District, Nepal. RMSE of ortho-mosaic was found to be 18 cm. While R2 value of 89% was obtained for relationship between DBH and biomass, that of 61% was attained for relationship between CPA and biomass.
Introduction: Assessing the Soul of Education
Authors: Bebee Chad
Published: December 2019

Sometimes assessment can be a drag. Imposed as an accountability measure, assessment feels like an extraneous burden, a bureaucratic boondoggle. Nothing frustrates an educator (or a student) like data-demanding, time-sensitive, box-checking exercises. However, when assessment is undertaken in the right conditions—a collaborative, supportive, inclusive environment—and for the right reasons—to find necessary answers to important questions concerning our teaching, student learning, and our institutions—an extraordinary alchemy can occur. Under these conditions, assessment can be transformative.
The influence of gender threat on social distance toward minority groups
Authors: Konopka Karolina , Chrustowicz Marta
Published: December 2019

Gender threat triggers compensatory mechanisms and motivation to restore and reaffirm gender identity. The aim of the present research is to verify whether gender threat will influence social distance toward homosexual people, refugees, and disabled people. It was predicted that men in gender threat conditions would manifest higher social distance toward groups when compared with the control condition. Due to the exploratory nature of the study, no hypotheses were formulated for women. Sixty-six individuals (30 men and 36 women) aged from 18 to 24 participated in the experiment. After completing the Masculinity and Femininity Scale, participants in the gender threat condition found out that they possess high levels of feminine attributes (men) or high levels of masculine traits (women). Participants in the control group did not receive feedback about the levels of their femininity and masculinity.The analyses showed that both men and women, after receiving the information that their psychological gender was incompatible with their biological sex, declared stronger social distance and colder feelings toward the majority of the groups, including people with disabilities. At the same time, women, regardless of the research condition, declared warmer feelings toward these groups than men. The results of the study indicate that gender threat may be a potential mechanism which explains prejudices toward other groups. However, the results obtained among females require replication in future studies.
Ball screw unit precise modelling with dynamics of loads and moving heat sources taken into account
Authors: JEDRZEJEWSKI Jerzy , KOWAL Zbigniew , KWASNY Wojciech , WINIARSKI Zdzislaw
Published: December 2019

This paper deals with the precision modelling of the ball screw unit’s thermal behaviour in the turning centre and its impact on the tool head positioning error. The error components along controllable axes X and Z are described in detail using an FE model integrating the changes in thermal and force loads and deformations occurring during the motion
of the nut as a heat source. The impact of the nut work cycle on the thermal deformations of the ball screw and the displacements of the slideways and the screw points along both the axes and on carriage positioning precision is demonstrated.
Cnc machine tool error compensation system implementation strategies and their constraints
Authors: MEDYK Pawel , JEDRZEJEWSKI Jerzy , KASPRZAK Marcin
Published: December 2019

This paper deals with the constraints imposed on error compensation systems by their implementation strategies. Constraints stemming from the structure of the control system with an NCK architecture of the ADCBI type are presented. Practical realizations of compensation and potential solutions offered by contemporary commercial CNC controllers are discussed.
Indicators of a Second Wave of Religiosity in Central Eastern Europe
Authors: Máté-Tóth András , Nagy Gábor Dániel ,   Academic Publishing
Published: December 2019

This article examines religion’s public role in Central Europe by investigating people’s expectations and perceptions regarding distinct facets of religion. The paper analyses factors related to the first wave and the second wave of religiosity along different lines such as church and government policies, the roles of churches in strengthening democracy, etc. According to the Aufbruch data research project and partially from the ISSP (International Social Survey Project), religious depiction of some post-communist countries are brought to the table. A deeper analysis is undertaken for 6 countries (Czech Republic, Croatia, Slovakia, Romania, Hungary and Poland), considering that in the countries previously listed, the distinction in the general level of religiosity differ remarkably, in order of the extremely religious country (Croatia) to the extremely non-religious country (Czech Republic). The discoveries from the various indicators shows that there is a good reason to believe in a possible second wave or different form and kind of religiosity compared to the times of the transition or the mid-1990s in contemporary times.
“Drops of Diversity”: How a small academic library is working to increase cultural competence
Authors: Erickson Sue , Rondeau Sophie , Sweeney Maggie
Published: December 2019

Virginia Wesleyan University (VWU) is ranked 19th in ethnic diversity among national liberal arts colleges by U.S. News & World Report, a distinction held high by the institution. Diversity is a prominent feature of VWU’s strategic plan, and the institution’s core values emphasize inclusion and social responsibility. Given the diverse constituents on campus, librarians at VWU’s Hofheimer Library saw an opportunity to develop library diversity initiatives in an intentional way. What’s more, diversity forms an important component of the library’s strategic plan, thus emphasizing a commitment inclusive of the community being served.
Potencial de aproveitamento de água de chuva na Universidade Federal do Pará - Belém/PA
Authors: Nascimento Thays Valente do , Fernandes Lindemberg Lima , Yoshino Gabriel Hiromite
Published: December 2019

O objetivo deste artigo é avaliar o potencial de aproveitamento de água de chuva na Universidade Federal do Pará (UFPA), assim como a economia de água potável a partir de seu uso, contribuindo para a gestão e o planejamento sustentável dos recursos hídricos da região. Para isso, foram levantadas as áreas dos prédios do Setor Básico e Profissional da UFPA. Uma série histórica de precipitação com 46 anos de observações para o município de Belém foi utilizada. Foi realizado o monitoramento do consumo de água nos principais banheiros coletivos e estimados nos demais prédios. Os resultados mostram que devido ao alto índice pluviométrico e as grandes áreas de captação, a UFPA possui um potencial real e favorável de aproveitamento de água de chuva como forma alternativa de abastecimento, uma vez que verificou-se que nos meses chuvosos a economia de água potável pelo uso de água de chuva disponível, apresentou porcentagens superiores a 100%, o que demostra uma ótima alternativa para a economia de água fornecida pelo sistema de abastecimento da universidade.
Implantação de espaços educadores sustentáveis: estudo de caso em uma escola pública do município de Poços de Caldas, MG
Authors: Silva Lílian Ferreira Gomes da , Silveira Alexandre
Published: December 2019

É emergente que novas propostas educacionais voltadas para a qualidade de vida socioambiental sejam necessárias para o enfrentamento dos problemas ambientais atuais. Espaços Educadores Sustentáveis (EES) são considerados ferramentas fundamentais para escolas incubadoras de mudanças. Este estudo de caso tem como objetivo investigar a implantação de EES, analisando a eficiência e a possibilidade da promoção da educação para a sustentabilidade. Buscou-se juntamente com a comunidade escolar, a modificação do espaço físico com tecnologias alternativas e propostas metodológicas por meio de um Programa de Educação Ambiental e Sustentabilidade. Os instrumentos para a coleta de dados foram questionário, entrevista semiestruturada e análise de conteúdo, envolvendo os alunos, professores e gestores. Os resultados obtidos são relacionados ao percurso da implantação de espaços educadores sustentáveis. De acordo com as considerações finais, pretendeu-se elaborar recomendações com a finalidade de contribuir com o desenvolvimento de comunidades sustentáveis.
A INSERÇÃO DA EDUCAÇÃO AMBIENTAL NO CURRÍCULO ESCOLAR
Authors: Santos Aline Gomes dos , Santos Crisliane Aparecida Pereira
Published: December 2019

A escola pode constituir um espaço para o desenvolvimento da Educação Ambiental (EA), objetivando formar cidadãos conscientes, capazes de enfrentar os desafios da realidade socioambiental. O principal objetivo deste artigo é analisar a EA sob a perspectiva do currículo escolar, buscando mostrar como a EA tem sido inserida no currículo das escolas brasileiras. A metodologia de pesquisa se baseou na coleta de dados secundários por meio da seleção de 38 documentos (artigos científicos, publicações acadêmicas e livros didáticos). A adoção de questionários se revelou como a principal metodologia de trabalho. Com relação às ações executadas, percebeu-se que a EA acontece mediante projetos, disciplinas afins, iniciativa individual do professor ou interdisciplinarmente. A pesquisa permitiu mostrar quais as ações de EA são desenvolvidas nas escolas brasileiras, evidenciando a forma como acontece a inserção desta temática no currículo. Além de considerar que os projetos seguidos da inserção, por meio de disciplinas afins, são ainda os principais mecanismos de desenvolvimento da EA no âmbito escolar.
Levantamento da geração anual dos resíduos sólidos recicláveis do município de Caçador-SC
Authors: Campos Roger Francisco Ferreira de , Borga Tiago
Published: December 2019

Um dos principais problemas ambientais é o impacto causado pela falta de gerenciamento dos resíduos sólidos urbanos, no qual pode ser reversível com a utilização das diretrizes do Plano Municipal de Gestão Integrado de Resíduos Sólidos. Objetivou-se com esse trabalho a caracterização física e composição gravimétrica dos resíduos recicláveis do município de Caçador-SC. O estudo foi realizado junto a Cooperativa Cidadania e Meio Ambiente e as empresas de reciclagem do município, no período de 01/01/2013 a 31/12/2013. Tendo um volume total amostrado de 2.602.495,78 kg/ano, sendo um trabalho correspondente a toda área do município. Possuindo uma geração total de 324.554,02 kg de papel, 889.112,47 kg de papelão, 1.026.983,73 de plástico, 247.002,61 kg de vidro, 8.809,30 kg de eletrônico, 68.253,86 kg de alumínio, 38.122,78 kg de metal e 2.657,00 kg de ferro. Para a determinação da composição gravimétrica dos resíduos sólidos foi seguido a NBR 10007:04.  A partir dessa foi possível levantar geração per capta do município de 36,77 kg/hab./ano, 3,06 kg/hab./mês e 0,101 kg/hab./dia, e a média amostral de cada um dos meses. Esses dados serão utilizados no Plano Municipal de Gestão Integrada de Resíduos Sólidos do município de Caçador, no qual vai impor as diretrizes referentes aos resíduos passiveis de reciclagem com os valores da pesquisa.
Estimativa da vulnerabilidade natural à contaminação do aquífero no município de São Sepé - RS
Authors: Terra Lueni Gonçalves , Schiavo Bruna Nascimento de Vasconcellos , Fernandes Gabriel D'Avila , Borba Willian Fernando de , Silva José Luiz Silvério da
Published: December 2019

Em consequência ao aumento significativo da urbanização e do incremento de serviços necessários ao suprimento da população, cresce a utilização de águas subterrâneas para suprir diversos usos. A partir disso, os estudos de vulnerabilidade do aquífero a contaminação tornam-se uma importante ferramenta. O presente estudo tem por objetivo principal mapear a vulnerabilidade das águas subterrâneas do município de São Sepé-Rio Grande do Sul, localizado no sul do Brasil, situado no escudo Uruguaio Sul Rio-Grandense, aquífero cristalino fissural. Para a espacialização foi utilizado o método GOD, adaptado para as condições brasileiras. Para tanto elaborou-se um banco de dados hidrogeológicos relativos a 8 captações que continham as informações necessárias à aplicação do método (grau de confinamento, meio aquífero e profundidade do nível da água). O cartograma da vulnerabilidade apontou que a classe predominante foi a baixa, equivalente a 44,56 % do total da área, seguida da classe média representada por 39,33% e da classe alta com 12,91% mapeado. As classes extrema e insignificante representaram 2,78% e 0,42% respectivamente. Esses resultados apontam a necessidade de índices de vulnerabilidade a serem considerados em licenciamento de empreendimentos potencialmente poluidores e na implantação de planos diretores.
Past and Future in the Construction of Communal Identity: Collective Memory and Mythical Narratives
Authors: Kølvraa Christoffer
Published: December 2019

This article relates to the question of whether or to what extent identity is wholly constructed through language by engaging in a discussion of how the use of the past enters into the construction of communal identity. It argues that in order to understand why collective memory and the mythical narrativisation of the past which it frames are such powerful elements in the construction of collective identities, it must be distinguished from the science of historiography. But neither can collective memory be thought of as a communal analogue to the individual mental process of remembering. Rather it is a specific kind of discourse whose subject-position is endowed with a number of distinct privileges (different from those in the discourse of modern historiography) and through which a community can approach and articulate its past in mythical narratives whose ‘validity’ in fact has little to do with the extent to which they mirror ‘historical reality’.
DEFESAS DE DISSERTAÇÕES DE MESTRADO DO PROGRAMA DE PÓS-GRADUAÇÃO EM GEOGRAFIA EM 2018
Authors: PPGG-UFES Defesa dissertações
Published: December 2019

PPGG
Dr. Ursula Martius Franklin (1921-2016)
Authors: Frize Monique
Published: December 2019

Ursula Franklin was born in Germany in 1921 and moved to Canada in 1949 after surviving the Holocaust. She joined the University of Toronto’s Department of Metallurgy and Materials Science in 1967, and became the institution’s first female “university professor” in 1984. This memoriam recounts her influence on the author, among the many others Ursula Franklin touched during her remarkable life and career.
Négocier des voies de passage sûres : comment les acteurs non étatiques participent à la gestion des frontières
Authors: Bouagga Yasmine , Segond Raphaëlle
Published: December 2019

Alors que les frontières européennes sont de plus en plus sécurisées, l’accès au territoire de personnes ayant besoin de protection est devenu un enjeu humanitaire sur lequel intervient une diversité d’acteurs citoyens, d’ONG, d’associations. Cet article examine la participation de ces acteurs à un « travail humanitaire de la frontière ». Il s’appuie pour cela sur l’étude de dispositifs promus en Italie et au Royaume-Uni pour soutenir des voies de passage légales. Formulés dans des contextes d’urgence, ces « corridors humanitaires » et voies sûres se sont appuyés sur la notion de vulnérabilité pour défendre une ouverture mesurée et sélective de la frontière. Quel rôle peut alors être accordé à ces acteurs non étatiques humanitaires dans la gestion de ces frontières ? Quelles sont les limites à leur action dans un contexte de politiques migratoires restrictives ?
Interpréter les récits de demande d’asile : une perspective légitimiste et militante du statut de réfugié
Authors: Clappe Maureen
Published: December 2019

Cet article montre comment les interprètes bénévoles qui oeuvrent en association font exister un modèle associatif particulier proche de la médiation et se constituent en acteurs périphériques dans la mise en oeuvre des politiques de l’asile. Réfugiés ou en attente de régularisation, ils sont recrutés pour leurs connaissances juridiques et sociales, en plus de leurs compétences linguistiques. Une enquête ethnographique réalisée entre 2014 et 2019 au sein de Solidarité Asile (une association locale de soutien aux demandeurs d’asile) nous a permis de mettre en lumière deux stratégies de médiation adoptées par les interprètes dans le travail d’écriture des récits de demande d’asile. En fonction de leur parcours et de leur conception du statut de réfugié, ils n’appréhendent pas leur rôle de la même manière : certains adoptent une vision légitimiste de l’asile en considérant que tous les exilés ne peuvent prétendre au statut de réfugié ; tandis que d’autres sont plus militants et prennent l’initiative de reconstruire l’histoire du requérant pour la faire correspondre aux impératifs juridiques. La conception de leur rôle dans et en dehors de la scène associative, leur rapport à l’association et aux demandeurs d’asile de leur pays d’origine, ainsi que la manière dont ils s’identifient au statut de réfugié sont des variables expliquant leur positionnement dans un pôle plutôt qu’un autre.
Expériences de parrainage collectif de personnes réfugiées au Québec : perspectives de parrains et de personnes réfugiées de la Syrie
Authors: Blain Marie-Jeanne , Rodriguez del Barrio Lourdes , Caron Roxane , Rufagari Marie-Claire , Richard Myriam , Boucher Yannick , Lester Caroline
Published: December 2019

Entre 2015 et 2017, le Québec a accueilli 11 251 réfugiés syriens, dont la majorité (81 %) via le programme de parrainage par des collectivités (Ministère de l’Immigration, de la Diversité et de l’Inclusion, MIDI, 2017). Ce programme, maintes fois présenté comme un modèle dans le monde, repose sur l’engagement volontaire de groupes de deux à cinq personnes de la société civile ou d’organisations communautaires ou religieuses qui acceptent la responsabilité d’assurer l’intégration et de couvrir les besoins essentiels de réfugiés durant douze mois. Adoptant une approche qualitative et microsociale, notre recherche-action réalisée entre 2016 et 2017 se penche sur l’expérience de personnes réfugiées syriennes parrainées et sur celle de leurs parrains. Compte tenu de l’arrivée « massive » de réfugiés syriens au Québec depuis 2015, mais aussi du leitmotiv de la responsabilité des parrains vis-à-vis de l’intégration des personnes réfugiées, comment les parrains interprètent-ils leurs responsabilités et quelles sont les modalités de soutien aux personnes qu’ils accueillent ? Notre équipe a rencontré plus de 50 participants et collaborateurs, dont une vingtaine de personnes réfugiées et autant de parrains. Le but de cet article est de porter un regard critique sur la mise en oeuvre du programme de parrainage collectif des personnes réfugiées et de relever la diversité des expériences — tantôt positives, tantôt ambiguës —, et ce, tant du point de vue des parrains que de celui des personnes parrainées. Nous conclurons par des réflexions sur les enjeux, mais aussi sur l’apport du programme de parrainage collectif, tout en soulevant l’importance de la complémentarité des rôles et des responsabilités des gouvernements, des organismes, des parrains et de la société civile au coeur de l’hospitalité.
Le travail migrant temporaire et les effets sociaux pervers de son encadrement institutionnel
Authors: Soussi Sid Ahmed
Published: December 2019

Cette recherche a pour objet l’action publique en matière de migrations internationales du travail au Canada. Elle se focalise sur l’encadrement institutionnel des travailleurs migrants temporaires (TMT) réajusté en 2014, au niveau fédéral, par la Réforme globale du Programme de travailleurs étrangers temporaires (PTET) suivie, au niveau provincial, de la Loi nº 8 modifiant le Code du travail. Appuyée sur une enquête menée au Québec depuis 2016 dans l’agroalimentaire et l’hôtellerie-restauration, elle analyse les impacts de l’action publique sur : 1) les liens d’emploi et les relations du travail ; 2) les statuts sociojuridiques des TMT et les conditions d’accès à la syndicalisation (droits d’association et de négociation). Sa méthodologie combine une démarche qualitative et des conclusions de recherches réalisées dans d’autres provinces du Canada qui permettent de constater l’orientation économique croissante du modèle canadien en matière de politiques migratoires. Nos conclusions proposent un modèle théorique qui fait ressortir deux niveaux de conséquences de l’action publique : 1) d’abord, la segmentation de l’emploi, qui va de pair avec la désyndicalisation résultant de la suppression des rapports collectifs du travail dans ces secteurs ; 2) ensuite, l’accès juridiquement restreint à certains droits sociaux du travail, la précarisation institutionnelle des TMT générée par la multiplication de leurs statuts de séjour et par leur subordination nominative à un employeur unique. Cette action publique, conjuguant politiques migratoires et politiques de l’emploi, permet aux entreprises d’internaliser une main-d’oeuvre étrangère peu coûteuse et juridiquement vulnérabilisée ; elle régule des flux migratoires pouvant combler indéfiniment des emplois permanents par cette main-d’oeuvre sans avoir à assumer les coûts sociaux dont bénéficient les salariés locaux.
The Investigation of Antimicrobial Properties of Ag–Alginate Impregnated Polyester/Viscose Nonwoven Fabric
Authors: KILINÇ Mehmet , YILDIZ Kübra , TEKİN Aşkın , KILINÇ Nur , UZUN Muhammet
Published: December 2019

Alginate
is a biomaterial that is used in food, textile and medical industry. Alginate is
used in textile industry as sizing agent, thickener and finishing materials.In
addition to this, it is used in medical industry due to its biodegradable and
biocompatible properties. The aim of this study is to investigate the
antimicrobial properties of Ag–alginate impregnated polyester/viscose nonwoven
fabric. In this study, Ag–alginate solutions were prepared. Polyester/viscose
nonwoven fabric with different mixing ratio was impregnated with prepared
solutions. Finally, The antimicrobial, EDX and SEM analyses were performed.
Improved Vegetable Cultivation Practices: An Adoption Study among the Farmers’ of Some Selected Areas in Bangladesh
Authors: Mobarak Mou Moushumi , Islam Md. Rafiquel , Mondal Tanushree , Monalesa Nipa , Abdullah Md. Masum
Published: December 2019

The research work has been done to determine the extent of adoption of improved vegetable cultivation practices by the farmers. Attempt was also made to explore the contribution of selected characteristics of farmers viz. age, education, family size, farm size, experience in vegetable cultivation, annual income, vegetable cultivation knowledge, extension media contact, organizational participation, innovativeness, training experiences and problems confrontation on their adoption of improved practices in vegetable cultivation.

It is a Field Survey Research Shajahanpur upazila under Bogra district of Bangladesh by the department of Agricultural Extension and Information System between January to June of 2018.

Data were collected from randomly selected 112 farmers of Chopinagar union under Shajahanpur upazila of Bogra district by using a structured interview schedule. Appropriate scales were developed in order to measure the variables. Multiple regression test was used to ascertain the contribution of the concerned independent variables on the dependent variable of the research work.

50% of the farmers had low adoption while 40% had medium adoption and 9.80% had high adoption of improved practices in vegetable cultivation. Among the selected characteristics education, experiences in vegetable cultivation, annual income, innovativeness and training experiences showed significant and positive contribution to their adoption of improved practices in vegetable cultivation. However, family size and problems confrontation showed the negative significant contribution to adoption of improved practices in vegetable cultivation of the farmers. Age, farm size, vegetable cultivation knowledge, extension media contact and organizational participation did not show any significant contribution on the adoption of improved practices in vegetable cultivation of the farmers.

Adoption of improved vegetable cultivation practices by the farmers will not be possible to improve in a significant extent unless the concerned authorities (like-Bangladesh Agricultural Research Institute, Department of Agricultural Extension) take proper steps.
Functional Iron Indices and Highly Sensitive CRP Post Single Dose Irradiation with Cobalt60 and the Ameliorating Effects of Single and Combined Doses of Aqueous Extracts of Parquetina nigrescens, Camellia sinensis and Telfairia occidentalis in Guinea Pigs
Authors: Olatunbosun L. O. , G. Khalil E. A. , Shittu A. O. , Olalere F. D. , Lawal S. A. , Biliaminu S. A. , Ogunwale K. A. T. , Sanni E. O. , Atunwa S. A. , Oyenike M. A.
Published: December 2019

Background: The relationship between iron, hypoxia, inflammation, and erythropoietin in cellular homeostasis is well documented. Patients on radiotherapy are known with active immune/inflammatory disorders often accompanied with reduced iron uptake or unavailability of circulatory iron and hence, must be adequately evaluated. The present study hypothesized “aqueous extracts of Camellia sinensis, Telfairia occidentalis and Parquetina nigrescens have chemical properties of ameliorating and restoring to normal, functional iron deficiency sequel to Cobalt 60 irradiation effect”.

Materials and Methods: Fifty-Five young male guinea-pigs approximately 450 gram in weight were recruited and thirty were randomly assigned to 3 groups (A, B and C) for the study. Groups A and B were further divided into 4 (A1-4 and B1-4) with 3 animals (n=3) per group. Three guinea-pigs were also assigned to group C. Groups A and B belonged to Pre and post-irradiation groups while groups C served as control. Each animal was given 400r (4.0 Gy) whole-body gamma-irradiation under general anaesthesia, using a Co60 therapy unit as a source. Groups A1, A2, A3 and A4 had 1,400 mg/kg C. sinensis, 4000 mg/kg P. nigrescens, 3,500 mg/kg T. occidentalis and Combined dose (1,400 mg/kg C. sinensis + 400 mg/kg P. nigrescens + 3,500 mg/kg T. occidentalis) respectively twice daily 72 hours prior to irradiation and continued throughout the 14 days of the study. Groups B1, B2, B3 and B4 had similar treatment but commenced 24 hours after exposure to radiation and likewise continued throughout the 14 days of the study. Group C were not given any treatment but also had irradiation.

Results: Total Iron Binding Capacity, Ferritin, Serum Transferrin receptor and Iron were all increased significantly for all the extracts pre and post irradiation. However, C-reactive protein decreased significantly.

Conclusion: Aqueous extracts of Camellia sinensis, Parquetina nigrescens and Telfairia occidentalis leaves have good ameliorating effect on irradiation-induced injuries.
Functional Properties of Defatted Roselle (Hibiscus sabdariffa L.) Seeds Protein and Its Hydrolysates
Authors: Tounkara Fatoumata , Togola Issiaka , Sissoko Lassana , Fane Mah Moutaga , Diarra Nouhoum , Traoré Nah
Published: December 2019

Aim: The purpose of this study was to evaluate the functional properties of Roselle seed protein isolates and its hydrolysates.

Place and Duration of Study: The Roselle seeds were collected in Koutiala (Mali), in November 2018. All analysis were conducted in the Faculty of Sciences and Technics, particularly in the Laboratory of Plant and Food Biochemistry and Biotechnology from January to June 2019.  

Methodology: The effect of enzymatic hydrolysis on the functional properties of Roselle seed protein (RSP) was investigated. Defatted Roselle seed flour was used to extract the protein isolates. The protein was digested for 2 hours and 3 hours using pepsin followed by pancreatin.

Results: The 2 hours and 3 hours Roselle seed protein hydrolysates (RSPH2, RSPH3) compare to RSPI, exhibited a good foaming capacity of 300, 315 and 165% respectively. The water holding capacity (WHC) of the RSPI, RSPH2 and the RSPH3 were 2, 2.5 and 2.2 ml/g respectively. The oil holding capacity ranged from 5.75 to 5.32 ml/g, the emulsifying capacity of the RSPH2 was higher than that of the RSPH3 and the RSPI, 105, 97 and 82 ml/g respectively.

Conclusion: The ability of pepsin and pancreatin hydrolysates to be functional is primarily due to their soluble peptide content. The samples have good functional properties. These results proposed that pepsin and pancreatin hydrolysates could be useful as whole or partial replacement of high-price materials such as egg albumen and casein.
A Brief Study of an Installation of a Rooftop Solar PV System in India
Authors: Sivaraman Karthik , Rawool Aniket
Published: December 2019

Solar rooftop photovoltaic installation is one of the most popular setups used in the country of India, being economical and apt for the space available in the country. This paper focuses on the key aspects of the design involved in the setup of the system, regarding not just the engineering design for a PV system, but also other key components such as installation site evaluation of a given rooftop to the final cost analysis. Hence, the discussion in the paper will give the average understanding of how a rooftop photovoltaic system is processed through in this country from an engineer’s point of view.
Evaluation of Clinical Symptoms and Serum Lead Level in Patients with History of Oral Opium Use being Admitted to Hazrat Rasoul Akram, Firoozgar, Firoozabadi and Haft Tir Hospitals, Tehran
Authors: Tavirani Majid Rezaei , Beigvand Hazhir Heidari
Published: December 2019

Introduction: Drug abuse and its complications is a socio-health problem in Middle Eastern countries such as Iran. Smugglers may add lead to drug during drug production, which is in order to increase its weight for greater benefit. Considering the frequency of the patients with various complaints among Iranians, this study was designed and conducted to evaluate the clinical symptoms and serum levels of lead in patients being admitted to Hazrat Rasoul Akram, Firoozgar, Firouzabadi and Haft Tir hospitals with any complaints.

Materials and Methods: In this case-control study, serum levels of lead were measured in 128 samples in case and control groups. The case group consisted of 64 patients using oral opium who being admitted to Rasoul Akram and Firoozgar, Haft Tir and Firouzabadi hospitals with different complaints in May 2017. The control group consisted of 64 patients with no history of addiction that were homogenized with the case group in terms of age and sex. They were evaluated for serum levels of lead and other variables. Data were analyzed by SPSS software.

Results: The mean serum lead level was 76.34±17.82 in the group using opium and was 7.68±3.72 in the control group that the difference was statistically significant (P <0.001). The most common complaints of patients were abdominal pain and symptoms of bowel obstruction. The mean rate of oral opium consumption was 1.73±0.23 in subjects under 50 years old and with a mean of 2.89±0.27 in subjects over 50 years old. Serum lead level was significantly (P = 0.032) increased compared to the amount consumed. Duration of oral opium consumption was 5 months to 30 years with a mean of 15.24 years, which was not significantly correlated to serum lead level (P = 0.213). Also, the hemoglobin range was significantly correlated to different levels of lead in patients consuming oral opium (P = 0.027).

Conclusion: The findings of the present study showed a high mean serum lead level in oral opium addicts in the study population. The results also confirm numerous reports suggesting the definitive diagnosis of lead poisoning as a justifying factor in addicted patients with nonspecific symptoms, which may indicate the need for serum lead level screening in opiate addicts to prevent more serious complications.
Acute Lymphoblastic Leukemia
Authors: Jain Nitin , Faderl Stefan , Kantarjian Hagop M. , O'Brien Susan
Published: December 2019

Overview

In adults, acute lymphoblastic leukemia (ALL) is a disease with poor prognosis. In the past several years, there have been significant advances in understanding the disease biology, prognostication, and in the development of novel therapies. These include development of monoclonal antibodies, antibody–drug conjugates, tyrosine kinase inhibitors, and more recently, chimeric antigen receptor T‐cell therapy. These therapies are beginning to result in improvements in survival of patients with ALL.
Theory and Ab Initio Calculation of Optically Excited States—Recent Advances in 2D Materials
Authors: Xie Kaichen , Li Xiaosong , Cao Ting
Published: December 2019

Recent studies of the optical properties of 2D materials have reported unique phenomena and features that are absent in conventional bulk semiconductors. Many of these interesting properties, such as enhanced light‐matter coupling, gate‐tunable photoluminescence, and unusual excitonic optical selection rules arise from the nature of the two‐ and multi‐particle excited states such as strongly bound Wannier excitons and charged excitons. The theory, modeling, and ab initio calculations of these optically excited states in 2D materials are reviewed. Several analytical and ab initio approaches are introduced. These methods are compared with each other, revealing their relative strength and limitations. Recent works that apply these methods to a variety of 2D materials and material‐defect systems are then highlighted. Understanding of the optically excited states in these systems is relevant not only for fundamental scientific research of electronic excitations and correlations, but also plays an important role in the future development of quantum information science and nano‐photonics.
Artificial Perception Built on Memristive System: Visual, Auditory, and Tactile Sensations
Authors: Ji Xinglong , Zhao Xinyu , Tan Mei Chee , Zhao Rong
Published: December 2019

The widespread implementation and rapid development of autonomous systems pose stringent performance requirements on emerging sensory systems. In addition to the basic sensing requirements, leading sensory systems are required to process data and extract featured information from highly redundant data in real time. With the added edge‐computational capabilities, data shuttling is avoided, leading to significant reduction of computational burden and bandwidth pressure in the cloud. Among the different computing architectures, the neuromorphic sensory system stands out due to its high power efficiency, low latency, and excellent processing capability. Mimicking the biological neural network, the colocation of sensory, processor, and memory components of neuromorphic sensory systems enables the requirements for frequent data shuttles to be circumvented. In particular, artificial intelligent perceptions built on memristive neuromorphic systems exhibit outstanding characteristics of small footprint, low power consumption, 3D stacking ability, and high density. Herein, the two essential parts of the memristive artificial perceptron system are presented: 1) memristive systems for neuromorphic computing and 2) high‐performance sensors. Next, the current state of the art established on artificial perceptron systems covering visual, auditory, and tactile sensations is highlighted. To conclude, the current challenges and future direction in the area of advanced intelligent perceptions are presented.