bluuebunny/crossref_metadata_2025 huggingface dataset:
PARIS, A CIDADE LUZ NO TERCEIRO MILÊNIO
Authors: Ramos Célia Maria Antonacci
Published: June 2019

O deslocamento no espaço é uma experiência indispensável para quem se dedica a estudar as cidades em suasdinâmicas contemporâneas e fluxos migratórios. Este texto parte de minhas caminhadas pelas ruas de Paris, quando realizeiestágio de pós-doc em 2011/2012. A partir da cidade de Paris, as questões aqui levantadas estão relacionadas com as cidadesno terceiro milênio e seu relacionamento com o sistema das artes. Como e até que ponto, o sistema das artes e os artistas,críticos e curadores interferem nos debates sobre a integração das pessoas no espaço de convivência coletiva da cidade contemporânea? Pode a arte ser parte dos debates nas cidades com um forte acento em preconceitos?
NOTAS SOBRE PAULO NAZARETH
Authors: Veneroso Maria do Carmo Freitas
Published: June 2019

O objetivo deste artigo é apresentar e discutir criticamente obras do artista Paulo Nazareth, brasileiro, nascido em 1977 na cidade de Governador Valadares, Minas Gerais, considerando sua atuação artística como uma prática cultural e relacional. A água é um tema recorrente no trabalho do artista e está presente nas obras abordadas.
Editorial
Authors: Editorial Conselho
Published: June 2019

Neste volume da Revista UFMG, elegemos como foco o tema Evolução, que, nas ciências, remete à Teoria da Evolução Biológica, sintetizada e divulgada por Charles Darwin, a partir da publicação, em 1859, da obra intitulada Origem das Espécies. Vários foram os pesquisadores que contribuíram para a construção dessa teoria, entre eles o naturalista Alfred Wallace, que, assim como Darwin, passou um tempo no Brasil coletando material e fazendo observações que o ajudariam a entender o enigma da origem das espécies. Naquela época, meados do século XIX, a Europa vivenciava um rico momento científico, filosófico, que será rememorado em alguns dos artigos apresentados neste volume.
DARWIN E MARX, DURKHEIM E WEBER: relações entre a forma de pensar evolução na Biologia e na Sociologia
Authors: Schall Brunah
Published: June 2019

O pensamento evolutivo é de grande importância na Biologia e na Sociologia, pois em ambas as disciplinas háuma tentativa de compreender as mudanças que ocorrem ao longo do tempo, na natureza e na sociedade. Com foconesse tipo de pensamento, é possível delinear interseções entre a teoria da evolução por seleção natural de Darwin e asideias de Karl Marx, Émile Durkheim e Max Weber, comparando os tipos de perspectivas históricas desenvolvidas por cadaum. A discussão dessas interseções pode contribuir para uma melhor compreensão e ensino das disciplinas, fomentandovisões transdisciplinares e críticas que as enriquecem, advertindo também para possíveis interpretações ideológicas quetêm impacto sobre a realidade.
A força utópica do messianismo político de Ernst Bloch
Authors: Mandotti de Oliveira Hudson
Published: June 2019

O presente artigo propõe analisar os elementos constitutivos presentes na Filosofia da Esperança de Ernst Bloch, com base em questões essenciais: os vestígios da utopia, o possível futuro, as concreções utópicas e o messianismo políticocomo um processo que permanece aberto. Contornos utópicos do pensamento de Bloch são aqueles que, num sentido abrangente da existência do ser, constituem uma síntese de suma importância – “S ainda não é totalmente P”. Nesse sentido, a não sublevação e o desdobramento do humano em sua totalidade permanecem em um processo expectante, cuja tarefa é considerar que esse possível do ainda não realizado é que fundamenta a ação transformadora da política messiânica.
O horizonte utópico nos imaginários urbanos
Authors: Pereira Franco Brito Lucia Elena
Published: June 2019

O artigo discute o horizonte utópico nos imaginários urbanos, tomando como objeto de reflexão a história recente da cidade de Frutal. No início dos anos 2010, o município situado no Triângulo Mineiro viveu a promessa, não concretizada, de que se tornaria referência mundial em pesquisas sobre preservação ambiental e gestão da água, graças à implementação da Cidade das Águas – um projeto monumental idealizado pelas elites políticas estaduais e locais. O estudo parte da premissa de que todas as cidades podem ser tomadas na dimensão da utopia, porém, na experiência contemporânea, a promessa da urbe como espaço de convivialidade politizada se depara com projetos pretensamente visionários, que reduzem as cidades à mercadoria e os cidadãos a meros consumidores dos dramas urbanos.
PENGARUH ACUPRESURE POINT FOR LACTATION TERHADAP PRODUKSI ASI IBU MENYUSUI
Authors: Fetrisia Wiwit , Yanti Yanti
Published: June 2019

Exclusive breastfeeding or more properly called exclusive breastfeeding. The reality in the field shows the production and ejection of breast milk is a bit of a constraint in breastfeeding. One solution to overcome the insufficiency of breast milk production is through techniques acupressure points for lactation. This study aimed to determine the effect of mother's milk production with acupressure point for lactation intervention in the work area of Muaro Paiti sub-district Kapur IX Lima Puluh Kota Regency 2018. A quasi-experimental design with control group pretest-posttest design. The study was conducted in the working area of Muaro Paiti Community Health Center in April 2018. The population was breastfeeding mother in the work area of Muaro Paiti health center which was 118 people, with purposive sampling of 16 people. Processing and data analysis is done computerized. Univariate results revealed the average production of breast milk before acupressure point for lactation intervention in breastfeeding mothers was 67,9 ml and after intervention 85.7 ml. Bivariate results have the effect of acupressure point for lactation intervention on maternal breastmilk production in the work area of Muaro Paiti District Health Center Kapur IX Lima Puluh Kota Regency  2018 (p = 0,0005). It is expected that health workers should be able to teach acupressure point for lactation techniques in breastfeeding mothers to increase milk production for mothers with breastfeeding production
Increased Production Of Breast Milk With The Papaya Fruit Consumption
Authors: Nataria Desti , Oktiarini Sherly
Published: June 2019

The low scope of Exclusive breastfeeding can cause nutritional problems in infants. Efforts to overcome them, among others, by increasing milk production. Papaya as one fruit containing Laktagogum.Lactagogue is a drug that can increase or facilitate the expenditure of milk. The purpose of this study was to determine the effect of young papaya fruit consumption on milk production in breastfeeding mothers. The research method used is Experimental Design using One group pre-test post-test method. The population in the study were nursing mothers whose babies were still alive and aged 7-28 days with nonrandom technique (purposive sampling) obtained a sample of 14 people. Based on research result of the average of milk production volume before given treatment 16,79, deviation standard 7,277 and after consumption of papaya fruit treatment average is 26,07, deviation standard 7,385. It can be concluded the result of Paired TTest statistic test obtained p-value = 0,000 (0,000 <0,05) this shows the effect of giving young papaya fruit in the form of clear vegetable to increase milk production. With the results of the study is expected to consume young papaya fruit can be one food source that can increase milk production.
Efficiency Effsyn of complex syntheses as multicomponent reactions, its algorithm and calculations based on concrete criteria
Authors: Eckert Heiner
Published: June 2019

A synthesis efficiency algorithm, which must be based on concrete and reliable criteria, is essential for the evaluation and control of complex chemical synthesis, notably multicomponent reactions (MCRs). An algorithm has been developed to precisely evaluate even highly complex syntheses with regards to their synthesis efficiency Effsyn as a tool for strict compliance with green chemistry requirements, and for economic progress. The mathematical operations are highly suitable for electronic data processing (EDP). This algorithm is also suitable as a basis for fair cost assessment of complex chemical syntheses.
The Earth Biogenome Project
Authors: Coddington Jonathan , Lewin Harris , Robinson Gene , Kress W. John
Published: June 2019

The Earth BioGenome Project (EBP) is a recently proposed international collaborative research initiative that aims to sequence the genomes of all ~1.5 million known eukaryotic species on Earth in 10 years. The project has been called “biology’s moonshot” because of its potential to transform our understanding of life on Earth, to provide new tools for the conservation, preservation and regeneration of biodiversity, and to drive innovations in agriculture, medicine and the delivery of ecosystem services. The presentation will highlight the many scientific opportunities and technical challenges foreseen for the EBP and the importance of global collaboration for success of the project.
Mapping Biodiversity Patterns across Southeast Asia
Authors: Hughes Alice
Published: June 2019

Southeast Asia represents a global biodiversity hotspot, and yet compared to much of the rest of the world we have a relatively poor understanding of the patterns of biodiversity and endemism, or even basic distributions for many taxa. Global maps such as the IUCN (International Union for the Conservation of Nature) species range maps often have major inaccuracies in the spatial mapping of species localities, which are particularly problematic around political administrative boundary regions, and make any form of spatial prioritization difficult or impossible.

Here I show various approaches to mapping biodiversity across the landscape, including the mapping of both ecosystems with high levels of endemism, and databasing huge volumes of data as a basis for mapping out species distributions when combined with other forms of data, to map out diversity at numerous different taxonomic levels. I showcase the initial results of mapping for various taxa, and different ways of aggregating the data to better understand different facets of biodiversity. Additionally I discuss various approaches to developing spatial priorities for conservation across the region and the relative tradeoffs between each.
Théories et principes de conception des systèmes d’automesure numériques
Authors: Zouinar Moustafa
Published: June 2019

Cet article s’intéresse aux théories et principes qui sont mobilisés dans la conception des systèmes d’automesure numériques. Il s’appuie principalement sur la littérature en interaction Humain-Machine. Il met en évidence que les principales sources théoriques utilisées dans ce domaine sont des théories psychologiques de la motivation et du changement de comportement. L’analyse des techniques de motivation et de changement de comportement utilisées par les concepteurs montre qu’une caractéristique notable des systèmes qui incorporent ces techniques est qu’ils ne se limitent pas à la quantification. Ils sont également dotés de fonctions qui prennent en charge des opérations de contrôle et d’évaluation de l’activité sur la base d’objectifs définis par les concepteurs ou par l’utilisateur. Le point développé dans cet article est qu’en prenant en charge ces opérations, ils impliquent une relation Humain-Machine particulière, qui se caractérise par une forme hybride de régulation distribuée de soi.
Bas les masques ! Pour une interrogation ludique sur l’identité dans les œuvres de Queneau et Calvino
Authors: Servant Barbara
Published: June 2019

Au milieu du xx e  siècle, les deux auteurs oulipiens, Queneau et Calvino participent aux réflexions sur la crise du roman, notamment autour du personnage. Dans leurs œuvres, ils bousculent ses caractéristiques, comme le nom ou les attributs physiques en introduisant le motif du travestissement. Dès lors, leurs protagonistes sont exhibés comme des êtres de papier, mais, paradoxalement, ces derniers regagnent une cohérence dans la conscience qu’ils ont de leur nature littéraire. Le masque sert alors de révélateur dans la mesure où il met en lumière la difficulté à saisir ce qu’est l’identité.
Autogestion
Authors: Schaepelynck Valentin , Sustam Engin
Published: June 2019

Dans ce texte, les auteurs dégagent les enjeux théoriques et politiques de l’autogestion, ses appropriations contemporaines, en particulier du point de vue de l’autogestion pédagogique.
Du réformisme à la révolution (1945-1973) : venir après la Réforme universitaire argentine de 1918 selon Arturo Andrés Roig
Authors: Gonzalo Ferreyra Luis
Published: June 2019

Nous évoquerons ici la figure intellectuelle du grand philosophe et historien des idées argentin Arturo Andrés Roig. Ou plutôt, nous allons, à partir de sa propre réflexion philosophique et de sa pratique pédagogique, venir après l’héritage d’un de ces deux grands événements que furent la Réforme universitaire argentine de 1918 et Mai 68. Quels renseignements historiques, philosophiques ou pédagogiques pouvons-nous en tirer sur notre université actuelle en réfléchissant sur l’esprit et l’“identité réformiste” de Arturo Andrés Roig ?
Addressing Social Determinants of Health Through Community Engagement: An Undergraduate Nursing Course
Authors: Schroeder Krista , Garcia Brianna , Phillips Rebecca Snyder , Lipman Terri H.
Published: June 2019

Background:

Community engagement is a promising method for teaching about social determinants of health (SDOH) through experiential learning. The purpose of this article is to report the implementation and evaluation of a baccalaureate nursing degree course focused on addressing social determinants of health through community engagement.

Method:

The class was structured as a flipped classroom, during which students spent the majority of the time engaged with a community site. Students were required to attend two in-class seminars. Course evaluations were used to provide feedback to refine course delivery and assess course impact.

Results:

Thirty-six students enrolled in the course over two semesters. Knowledge and self-reported competencies in addressing SDOH in under-resourced populations increased. Course evaluations demonstrated an increase in students' knowledge and clinical skills related to SDOH.

Conclusion:

A course focused on addressing SDOH through community engagement provided a promising approach for preparing nursing students to provide care to underresourced populations.

[
J Nurs Educ.
2019;58(7):423–426.]
Justicia, amor y disyunción en Palais de Justice (2014), de José Ángel Valente
Authors: García Candeira Margarita
Published: June 2019

En 2014 se publicaba Palais de Justice, el volumen en prosa donde José Ángel Valente recreaba el juicio desencadenado por el divorcio de su primera mujer en los años ochenta, y en el que se inscribe una paradoja entre el amor y el derecho, en la medida en que el primero es sometido al control biopolítico del segundo mediante la institución matrimonial. Partiendo del contraste entre justicia y ley propuesto por Jacques Derrida y otros pensadores contemporáneos, este artículo examina cómo, en el texto de Valente, el sentimiento amoroso opera una disyunción respecto a lo legal para desplegar un ámbito suspendido en el que habita un orden otro. Inquietudes permanentes de Valente como la atención a la mística o al lenguaje se actualizan en una postulación de la existencia como la «nuda vida» teorizada por Giorgio Agamben. Con ella se cuestiona el fundamento legalista de la civilización occidental.
On Designing Blended Learning Environments for Resource-Challenged Communities
Authors: Lazem Shaimaa
Published: June 2019

The growth of Information and Communication Technologies (ICT) adop-tion in emerging economies and more broadly Resource-Challenged Com-munities (RCC) motivates the exploration of Blended Learning (BL), a learning mode that mixes face-to-face and technology-mediated instruction. BL has the potential of broadening accessibility to quality learning anytime and anywhere. This article contributes a theoretical perspective for design-ing BL environments in RCC. It synthesizes findings from BL literature and lessons distilled from iconic educational technology projects in RCC to envision a pathway forward that consists of three design heuristics to ad-dress that the contextual challenges in RCC: localizing the problem, em-bracing the complex and nuanced use of technology, and balancing autono-my and scaffolding to support students.
College English Teaching Status and Individualized Teaching Design in The Context of Mobile Learning
Authors: Zhang Yuan , Zuo Lu
Published: June 2019

This paper aims to optimize the design of individualized classroom teaching for mobile English learning in colleges, and find a scientific and effective English teaching mode and strategy for mobile learning. For this purpose, the application and evolution of mobile learning in English teaching was investigated, and the concept and theoretical bases of mobile learning were introduced in details. Through literature review, questionnaire survey and face-to-face interview, the status of mobile English learning among college students was analysed qualitatively and quantitatively from three dimensions, namely, the mobile device, learning resource and learning attitude. Then, several strategies for individualized teaching reform were presented through status analysis. Finally, the application of individualized mobile English learning was demonstrated through case studies on public platforms like Weibo and WeChat. The research findings shed new light on the individualized English learning among college students and lay a scientific basis for the application of mobile learning in college English education.
Analysis of the Effect of Hospital Resources on Patients in Indonesian Hospitals
Authors: Eni Yuli , Abdurachman Edi , Furinto Asnan , Warganegara Dezie
Published: June 2019

Health is the most important thing in human life. Humans can sacrifice anything for health. Health needs to be supported by government facilities, one of which is a hospital. The development of hospitals in Indonesia is increasingly rapid. The availability of more hospitals needs to be supported by the resources available in the hospital. The problem that occurs at this time is that there are still many patients who complain about the lack of availability of resources both in terms of doctors, beds that must be included in the waiting schedule, medical technicians who sometimes queue up for blood collection, administrative processes that take a long time so patients are not immediately treated so on. Therefore, this study was conducted to examine the influence of resources (building area, general practitioners, specialist doctors, nurses, pharmacists, medical technicians, health workers, and non-health workers) on patients (outpatient, inpatient, and emergency room) ) in Indonesian hospitals. The method used is multiple regression with the help of SPSS 20. While the data taken is the population of all hospitals in Indonesia. The results obtained are three, first, building area, bed and medical conditions affect inpatient. Both general practitioners, medical technicians, health workers and non-health workers influence outpatients. Finally, beds, general practitioners, medical specialists, medical technicians, and health workers influence ED patients. Based on the results of these studies it can be suggested that the main focus for each type of patient needs to be considered especially those that have a significant effect.
Pervasive Pollution Problems Caused by Plastics and its Degradation
Authors: Hassan Sidra , Haq Ihsan ul
Published: June 2019

We are living in a period of time where gaining access to clean water, food and even air is almost impossible. Everything on the planet Earth is contaminated in one form or another. Not only humans but all the creatures of the planet are under constant threat from at least one of the forms of pollution. Like other forms of pollution, plastic pollution is also a huge and mounting problem and it demands a similarly ambitious and influential solution. As ‘human-caused climate change’ received so much attention, this issue also needs the same consideration and it should be approached in the same way. Plastic pollution is killing our planet! It’s choking our oceans by making plastic gyres, entangling marine animals, poisoning our food and water supply, and ultimately inflicting havoc on the health and well-being of humans and wildlife globally. With the exception of a small amount that has been incinerating, virtually every piece of plastic that was ever made in the past still exists in one form or another.  And since most of the plastics don’t biodegrade in any meaningful sense, all that plastic waste could exist for hundreds or even thousands of years. If plastic production isn’t circumscribed, plastic pollution will be disastrous and will eventually outweigh fish in oceans. It’s time to think about the plastics, banning the single-use plastics, thinking about the recycling and going towards the zero-waste concept. This paper covers the reviews about current research on the plastic disasters by plastic industry and biodegradation of the conventional synthetic plastics by different microorganisms and major concerns related to ocean plastic pollution
Social Enterprise Consumers
Authors: Mkhize Sandile Sandile , Ellis Debbie
Published: June 2019

Food security has become a major social concern. Social entrepreneurs seeking to address this social concern aim to produce safe food products which cause no harm to either consumers or the environment. To achieve these social goals social enterprises apply business principles and practices one of which includes a marketing orientation. This involves thoroughly researching and understanding the targeted consumers so as to best satisfy their needs. This chapter reports on a study of organic food consumers so as to assist social enterprises aiming to target and satisfy their needs.
Strategic Sustainability Marketing and Social Responsibility in the Textile Industry
Authors: Schneider Katja , Arnold Marlen Gabriele
Published: June 2019

The global social, economic, and ecological sustainability challenges are immense, particularly in Africa. Given the continent's specific characteristics, there is a strong need to either shape “traditional” business models or to consider alternative corporate strategies. Those should in particular foster social change and progress through economic development. Social entrepreneurship is regarded as such an alternative approach. In addition, stronger aligning firms' business models to CSR dimensions as laid out in international standards such as ISO 26000 might be a valuable trajectory. By using an exploratory comparative case design and qualitatively analyzing the websites of four African textile companies, this chapter illustrates how social sustainability is being pursued. The findings suggest that sustainability-oriented textile companies strongly emphasize social sustainability, in particular labor practices, community involvement, and development. This enables further research on drivers and implications for sustainability marketing strategies in global textile value chains.
Potentials of Frugal Innovation to Combine the Social and Economic Objectives in the Marketing of Social Enterprises
Authors: Dressler Anne , Hüsig Stefan
Published: June 2019

Social enterprises strive to address social problems and pursue economic goals. In doing so, they also have to deal with the question of how to structure their marketing approaches to balance social and economic marketing goals. Frugal innovation often aims to address social problems with solutions that are affordable and of high quality. At the same time, these innovations are embedded in economic structures and aim to generate profits. Thus, it is assumed that such innovations influence the design of marketing strategies. This case study reveals how the social enterprise EinDollarBrille e.V. combines social and economic aims in its marketing approach based on a frugal innovation. The findings are consistent with previous research that social enterprises should try to overcome seeming contradictions of marketing goals. It is proposed that social enterprises could consciously pursue strategies that create synergy between their dual aims. Thereby, frugal innovations can be advantageous.
A School Model for Developing Access to Higher Education for African American
Authors: Eakins Sheldon Lewis
Published: June 2019

This chapter discusses the social inequalities in school choice and the racial disparities of college access. Utilizing the theories of social capital and social inclusion, the author provides a conceptual framework for developing a college-going school culture in charter schools. Through this lens, the author considers that the level of school support needs to be equitable to the varying stages of self-efficacy, academic behaviors, and post-secondary aspirations that students enter school with. The author suggests the importance of the RECIPE (rigorous curriculum, expectations, collegiality, interconnection, parental engagement, and exposure) to prepare African American students for college.
The Impact of Knowledge and Attitude of SGB Members Toward Adoption of Social Justice and Democracy
Authors: Musundire Austin , Lumadi Rudzani Israel
Published: June 2019

The purpose of this literature study was to investigate the impact of the knowledge and attitude of School Governing Board (SGB) members towards adoption of social justice and democratic practices for quality education in South African public schools with special reference to the language policy. Findings indicated that that bias is still a challenge in the institutions of learning in South Africa in terms of the implementation of the language policy by the members of the SGB. It was also found that increasing the level knowledge of the members; SGB members regarding social justice and democratic principles and practices with special reference to the South African language policy will change their attitude and behavior geared towards improved implementation of the same policy. It is also concluded that effective implementation of change management models can also coordinate the link between knowledge development, change of attitude and behavior towards effective implementation strategies of the language policy.
Parental Involvement Contributes to Family Cultural Capital in J District in Shanghai
Authors: Lyu Keyi , Lyu Cong , Li Jiacheng , Shughri Ghassan
Published: June 2019

Family cultural capital can be defined as a series of family cultural elements that are mainly held and transmitted by parents, that can contribute to children development. Many studies reveal that the family cultural capital of the migrant works is insufficient, which exerts negative effects on the development of their children. The study focuses on exploring the relationship between parental involvement and family cultural capital. The authors selected Taoyuan migrant as a case which has conducted home-school collaboration reform for more than three years, using the methods of interview, questionnaire, and observation to get two mains findings: (1) The model of parental involvement experienced a change process from self-elimination to active-participation, in which the school played a major role. (2) When parents adopt the model of active-participation, family cultural capital changes in three main forms of activation, increasing and transformation.
Disability and Dominant Leadership Models Over Time
Authors: Lee Melanie
Published: June 2019

This chapter is grounded in scholarly sources and personal narrative, and it concludes with recommended best practices about fostering more socially just higher education environments for college students. Specifically, the author focuses on the development of more equitable inclusion of students with disabilities in curricular and co-curricular leadership development programs. This chapter provides a context of major models of disability over time, a chronological scaffold of dominant student leadership models, and recommendations for educators inside and outside of classroom spaces. The intersection of models of disability and leadership models has not been explored. This chapter fills that gap in the literature.
Experimental Characterization of the Structural Deformation of Type IV Pressure Vessels Subjected to Internal Pressure
Authors: Nebe Martin , Maraite Daniel , Braun Clemens , Hülsbusch Daniel , Walther Frank
Published: June 2019

The investigations deal with the experimental characterization of the structural deformation of type IV pressure vessels subjected to internal pressure. For the widespread use of hydrogen technology in transport industries, the development of cost-effective storage systems is a crucial step. State of the art in the field of hydrogen storage are type IV pressure vessels, which consist of a polymeric liner and an enforcing winding of carbon fiber-reinforced plastic (CFRP). For the development of material-optimized and high-safety pressure vessels, the acquisition of reliable experimental data in order to validate numerical simulations is a necessity. In a specially designed test chamber subscale vessels are clamped and subjected to internal pressure. At defined pressure stages the vessel’s deformation is recorded and analyzed. Consequently, the overall structural deformation is assessed with regard to the used structural mass, the burst pressure and the resulting failure. The results can be used for structure optimization purposes as well as for the optimization of numerical simulation models.
A New Basic Probability Assignment Method for Multi-Source and High Conflict Information and its Application
Authors: Guan Xin , Zhao Jing , Liu Hai Qiao
Published: June 2019

In the field of target detection, material processing, such as nondestructive testing, welding and joining, many sensors are used to acquire information from different sources. In order to solve the problem of low precision of fusion results caused by conflicts between multi-source information, a new multi-source high-conflict information basic probability assignment method without any prior knowledge is proposed. Three most basic classifiers and the random selection of multiple sets of data in the UCI international public database are selected for simulation experiments to verify the feasibility and effectiveness of the proposed new method.
Improved Wear Resistance of UHMWPE Fibers by Modified Nano-Graphite
Authors: Wang Hong Qiu , Quan Jia You , Yu Jun Rong , Wang Yan , Zhu Jing , Hu Zu Ming
Published: June 2019

Single ultra-high molecular weight polyethylene (UHMWPE) fiber was modified by modified nano-graphite (NG) in wear resistance. Wear resistance, tensile strength, thermogravimetric analysis (TGA) were used to characterize the effect of modified NG on the properties of UHMWPE fiber. The results showed that with the increasing content of modified NG, the wear resistance of UHMWPE fiber was enhanced and its tensile strength was decreased. Considering the tensile strength and wear resistance of fiber, the optimum content of modified NG in UHMWPE fiber was around 0.58%. At this content, the wear resistance and thermal decomposition temperature of UHMWPE fiber were increased 1.88 times and 50°C respectively than pure UHMWPE fiber.
Diversity patterns of necrocolous beetles (Coleoptera: Scarabaeidae, Silphidae, Trogidae) inAgave tequilanaWeber (Asparagaceae) fields of different ages
Authors: Rodríguez William D. , Navarrete-Heredia José L. , Rodríguez-Macías Ramón , Briceño-Félix Guillermo A. , Vásquez-Bolaños Miguel , Klimaszewski Jan
Published: June 2019

The necrocolous Coleoptera (attracted to carrion) are important to maintain balance in insect communities and in the recycling of soil nutrients; however, there is scarce data on the species that occur inAgave tequilanaWeber (Asparagaceae) fields. The diversity patterns of beetles (Coleoptera: Scarabaeidae, Silphidae, and Trogidae) dwelling in 2–4-year-oldA. tequilanaplots were established by sampling specimens from May to November 2016. In total, 5509 individuals of 23 species were collected. The highest species diversity was found in Magdalena Municipality, followed by the Arandas and Tequila municipalities (Jalisco, Mexico), with significant differences in abundance among municipalities and crop age. The variability in Magdalena and Tequila assemblages was associated with the temperature, while in Arandas it was attributed to the precipitation. The beetle species diversity, species replacement, and dominance in different municipalities are the result of changes in habitat, the interaction of environmental variables, distribution affinities of species, and agronomic practices inA.tequilanafields.
Identification of an Intronic Regulatory Element Necessary for Tissue-Specific Expression of Foxn1 in Thymic Epithelial Cells
Authors: Larsen Brian M. , Cowan Jennifer E. , Wang Yueqiang , Tanaka Yu , Zhao Yongge , Voisin Benjamin , Constantinides Michael G. , Nagao Keisuke , Belkaid Yasmine , Awasthi Parirokh , Takahama Yousuke , Bhandoola Avinash
Published: June 2019

The thymus is critical for the establishment of the adaptive immune system and the development of a diverse T cell repertoire. T cell development depends upon cell–cell interactions with epithelial cells in the thymus. The thymus is composed of two different types of epithelial cells: cortical and medullary epithelial cells. Both of these express and critically depend on the transcription factor Foxn1. Foxn1 is also expressed in the hair follicle, and disruption of Foxn1 function in mice results in severe thymic developmental defects and the hairless (nude) phenotype. Despite its importance, little is known about the direct regulation of Foxn1 expression. In this study, we identify a cis–regulatory element (RE) critical for expression of Foxn1 in mouse thymic epithelial cells but dispensable for expression in hair follicles. Analysis of chromatin accessibility, histone modifications, and sequence conservation identified regions within the first intron of Foxn1 that possessed the characteristics of REs. Systematic knockout of candidate regions lead us to identify a 1.6 kb region that, when deleted, results in a near total disruption of thymus development. Interestingly, Foxn1 expression and function in the hair follicle were unaffected. RNA fluorescent in situ hybridization showed a near complete loss of Foxn1 mRNA expression in the embryonic thymic bud. Our studies have identified a genomic RE with thymic-specific control of Foxn1 gene expression.
Cultural selection and human food preferences
Authors: Bajrami Ani
Published: June 2019

Genes and culture co-evolve to determine variations in dietary habits. Our evolutionary heritage regarding food choice and food preferences is responsible for the mismatch with the food environments we have created, which leads to problems such as overweight and obesity. Several hypotheses have attempted to explain the high rate of obesity present in today’s world. The thrifty genotype hypothesis suggested that obesity today is a throwback to our ancestors having undergone positive selection for genes that favored energy storage. The drifty genotype hypothesis contends that the prevalence of thrifty genes is not a result of positive selection for energy-storage genes but, rather, is attributable to genetic drift resulting from the removal of predatory selection pressures. Both hypotheses focus on environmental changes over time, positive selection and genetic drift. While genetics plays a significant role, we believe that cultural selection is also responsible for the spread of obesogenic phenomena in Albania. The high rates of overweight and obesity among Albanians today can be explained as a mismatch between our evolutionary past and maladaptive behaviors.
Massonia villosa (Hyacinthaceae), a new species from the Roggeveld, Northern Cape, South Africa
Authors: Manning John C.
Published: June 2019

Background: Ongoing systematic studies in the African flora periodically reveal the existence of undescribed species.Objectives: To describe the new species.Method: Relevant literature was surveyed, and herbarium and fresh material were examined.Results: Collections of a Massonia (Hyacinthaceae) from the escarpment near Sutherland in Northern Cape with unique, softly hairy foliage represent an undescribed species.Conclusions: Massonia villosa J.C.Manning is a new species distinguished by the small, markedly convex leaves with recurved apex and pilose adaxial surface covered with soft, shaggy hairs up to 7 mm long and slender flowers without marked sigmoid coiling of the tepals.
Water quality in Ponte Pensa Aquaculture Park, Solteira Island Reservoir, SP, Brazil, where fish are cultivated under great-volume cage system
Authors: Rosini Edna Ferreira , Tucci Andréa , Carmo Clóvis Ferreira do , Barros Helenice Pereira de
Published: June 2019

This study analyzes spatial and temporal variations in physical and chemical water variables due to the influence of fish culture in a cage system (20x20x3 m) in Ponte Pensa Aquaculture Park (Solteira Island Reservoir), before and after cage installation. Water samples were collected on a monthly basis in the subsurface of three sampling sites (August/2011 to July/2013): downstream from the farming site (S1), at the farming site (S2), and upstream from the farming site (S3) (n = 72). Water temperature, pH, dissolved oxygen, transparency, turbidity, electrical conductivity, ammonium ion and total phosphorus were assessed. The principal component analysis (PCA) was applied to joint analysis data. PCA results explained the 61% joint variability in data of the first two components. Fish farming in cages caused significant temporal changes, mainly in January 2013, as well as sudden spatial changes in water physical and chemical variables. Fish culture influenced the quality of the water; such influence was mainly indicated by variations in ammonium ions and in total phosphorus concentrations, which were confirmed through PCA application. PCA results showed two distinct temporal phases: Phase 1 - prior to fish-cage farming, when limnological conditions were characterized by the highest dissolved oxygen concentrations and by high temperatures; Phase 2 - post-production period, when limnological conditions were characterized by the highest total phosphorus and ammonium ion concentrations.
An elementary proof of the rank-one theorem for BV functions
Authors: Massaccesi Annalisa , Vittone Davide
Published: June 2019

We provide a simple proof of a result, due to G. Alberti, concerning a rank-one property for the singular part of the derivative of vector-valued functions of bounded variation.
Passer de la parole aux actes : résoudre la crise des opioïdes au Canada
Authors: Doucette Douglas
Published: June 2019

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Clasificación de imágenes Landsat-8 en la Demarcación Hidrográfica del Segura
Authors: Rodríguez-Valero M. I. , Alonso-Sarria F.
Published: June 2019

This work presents a cartography of land uses in the Segura Hydrographic Demarcation obtained by classifying 2017 Landsat 8 images. The classification was carried out using two classifiers: Maximum Likelihood (ML) and Random Forest (RF). Training areas were obtained from historical high resolution imagery until 2016. Prior to classification, a cross validation analysis of the training areas was carried out to determine which of them may have undergone a change of use between 2016 and 2017. The results obtained with ML and RF, both with the original set of training areas and with the one obtained eliminating the problem, are compared to determine the best option. In the case of ML, the results improve after eliminating the changing training areas, from 77.7% to 81.4%; however, with RF this improvement is not so important, going from 84.1% to 85.1%. Therefore, it can be concluded that, with both methods, the classification is more exact when the modified training areas are used and, although the results obtained are quite acceptable for both ML and RF, the latter performs a more accurate classification.
Bilateral tests for the assessment of manipulative skills in children: development, reliability, and validity
Authors: Lovric Franjo , Jelaska Igor , Clark Cain C.T. , Eyre Emma L.J. , Miletic Durdica , Mandic Petra
Published: June 2019

Purpose

The aim of the study was to develop bilateral tests for simultaneous quantitative and qualitative assessment of manipulative skills among 7-year-old children, and to examine the reliability and validity of the tests.

Methods

A sample of 78 (35 girls) children (aged 7.34 ± 0.53 years) were tested with 3 novel bilateral tests: Standing ball throwing, Bouncing the ball standing, and Dribbling the ball with the foot. Subsequently, the reliability and validity of the constructed tests were investigated.

Results

Very high between-participant reliability was demonstrated through high and stable Cronbach’s alpha coefficient (0.94–0.98 for all tests), while relatively small coefficients of variation (0.03–0.12 for all tests) were observed. High values of correlation between expert judges’ ratings, as well as intra-class correlation, for both left and right sides indicated excellent between-rater reliability (0.84–0.99 and 0.88–0.93 across all tests, respectively).

Conclusions

The tests are reliable and valid in 7-year-old children and may be used to promote the adoption of appropriate sport and physical activities. Future research should explore the influence of further fine and gross motor skills on motor development.
First Report of Olive Anthracnose, Caused by Colletotrichum gloeosporioides, in Morocco
Authors: Achbani El Hassan , Benbouazza Abdellatif , Douira Allal
Published: June 2019

Ripe and overripe olive fruits (Picholine marocaine) showing circular spots of 5 to 20 mm in diameter, slightly depressed and reddish-brown in color, were collected from two orchards located in the regions of Ouazzane in Morocco. Colletotrichum gloeosporioides was isolated from symptomatic fruits and Koch’s postulate was fulfilled. According to the literature, this is the first report of Colletotrichum gloeosporioides causing anthracnose in olives in Morocco.
First Report on Pseudomonas marginalis Bacterium Causing Soft Rot of Onion in Morocco
Authors: E. H. Achbani , Sadik S. , El Kahkahi R. , Benbouazza A. , Mazouz H.
Published: June 2019

Pseudomonas marginalis is an important postharvest pathogen causing soft rot in a wide variety of harvested fruits and vegetables. Isolated strains from rotten onion bulbs based on morphological characteristics, were tested for pathogenecity on tobacco. Pathogenic strains underwent a biochemical test which detected the presence of P. marginalis. Symptoms were reproduced by inoculating this species to onion leaves and bulbs. Based on ARN16S sequencing, reported associated species (Pantoea agglomerans, Pseudomonas fluorescens, Klebsiella oxytoca) were also confirmed. This study reports for the first time the presence of P. marginalis bacterium in Morocco causing the soft rot of onion bulb, in association with Pantoea agglomerans, Pseudomonas fluorescens, and Klebsiella oxytoca.
Studying Soil Catena in Arid-zone Environment: Case Study for Soil Science Students
Authors: AL-Ismaily Said S. AL-Ismaily , AL-Maktoumi Ali K.
Published: June 2019

Studing soils under their natural habitat is an important step to understand soil-landscape relationships. Combing ing field-work with laboratory analyses is an important tech- nique for learning about soils and should help students to broaden their understanding of the basic concepts of soil sci- ence and in particular of soil formation. This work provides a detailed procedure for a hands-on educational approach consisting of a field exercise combined with basic labora- tory techniques for studying a soil catena. The work involves field study  of  physical  and  morphological  properties  of soil pedons existing on a soil catena of Al-Batinah region, Oman. Soil samples were collected for laboratory analyses. The paper provides a package of field, laboratory, and data analysis exercise using the concept of soil catena or topose- quence for studying factors of soil formation in an arid-zone environment. Combining field work with basic laboratory analyses maximizes the benefits of studying soil-landscape relationships
Exploring Environmental Issues: Places We Live
Authors: Haines Sarah , Hermann Ronald Hermann
Published: June 2019

The Project Learning Tree curriculum Exploring Environmental Issues: Places We Live was evaluated using a quasi-experimental research design that consisted of  pre/post inter vention assessments measuring differences in self-assessed content knowledge, researcher assessed content knowledge, and attitudes.  Treatment groups consisted of  two randomly assigned groups, one group completed 3-lessons and the other group completed 6-lessons.  Analysis indicated the 6-lesson treatment group demonstrated significant gains in all three categories, while the 3-lesson group exhibited significant gains in self-assessed content knowledge. The results suggest that the curriculum is valuable in delivering placebased educational content.
The Place of Pedagogical Content Knowledge in Teacher Education
Authors: Karaman Ayhan
Published: June 2019

In recent studies, teacher quality is presented as one of  the most important contributing factors to student learning. However, reaching a consensus about a precise definition of teacher quality is still far from actuality in the field of  education. In other words, what constitutes a quality teacher and how to educate better teachers are still highly debated issues. Pedagogical content knowledge (PCK) enters the scene at this moment as one of  the most critical elements of  improving teacher quality. This paper provides a brief  description of PCK, and its value and limitations in teacher education
Resistance to Soybean Cyst Nematode: Rhg1
Authors: Afzal Ahmed J. , Srour Ali , Natarajan Aparna , Saini Navinder , Iqbal M. Javed , Geisler Matt , El Shemy Hany A. , Lightfoot David A.
Published: June 2019

The genes underlying rhg1 lie at a sometimes dominant sometimes co-dominant locus, necessary for resistance to all Hg types of the soybean (Glycine max (L.) Merr.) cyst nematode (Heterodera glycines). Genomic research identified; nucleotide changes within a candidate gene encoding a receptor like kinase (RLK) that were capable of altering root development and thereby part of the resistance to Hg types 0 (race 3); changes in a laccase that are capable of altering cyst development; and genes underlying changes in membrane biology. This set of three genes are subject to co-selection with a modifier locus on another linkage block. Root development is slowed in the resistant seedling and results in end of season yield loss when SCN is not present. However, in the presence of SCN resistant seedling roots grow just as vigorously as the now slower growing parasitized susceptible roots and therefore show little loss to SCN parasitism. In some genotypes but not others the RLK can act alone to confer resistance. Functional paralogs of the three gene cluster have been found on other linkage groups including A1, B1, G, and O and these can be functional in different sources of resistance like G. soja, PI 437654 and PI438489B. At rhg1 the allele differences change the structure, interacting partners and activity of the LRR protein and the laccase. The changes between the alleles result in about 30 other proteins (judged by 2 Dgels), 112 metabolites (by FTICRMS) and 8 metabolites (by GCMS) to increase in abundance in roots during SCN infection in the resistant NILs. Understanding the basis of root stunting by resistance alleles will be used to improve methods for developing new nematode resistant soybean cultivars that do not suffer from the yield suppression and low seed germination rates of existing cultivars.