bluuebunny/crossref_metadata_2025 huggingface dataset:
Co-presence of a family doctor and psychologist in the management of patients with psychosocial and somatic symptom disorders
Authors: Falanga Rosario
Published: November 2019

Background: Patients often seek out the help of general practitioners for problems that need a holistic, biopsychosocial approach. Having a psychologist present to support the GP in treatment allows for a more complete response to the patient’s distress, which is aided by the integration of the two specialists’ areas of expertise.
Aims of the study: The aims of the study were to ensure all patients had direct access to a psychologist during treatment, even if they had not put in a specific request for one, to take care of accidental crises in real time, to reduce spending on inappropriate pharmaceutical prescriptions and diagnostic examinations, and to facilitate health promotion.
Methods: The experiment took place between January 2014 and December 2015, in Pordenone, Italy. The psychologist was present in the GP practice every Thursday. The psychologist was present to provide consultation for each person who went to the GP practice for treatment. The study also explored the significance of any request, the psychological framework of the observed situations, and included an additional meeting with the psychologist in the GP practice, for individual interviews.
Results: Of about 1,300 consultations with both the psychologist and GP present, the majority of the patients accepted the psychologist’s presence favorably. The most frequent source of discomfort for patients related to the grieving process during separation from people to whom the individual has a strong emotional attachment. 30 patients (6 males, 24 females) took part in individual follow-up meetings, 5 abandoned the project, 21 completed the full series of meetings, and 4 were sent to a mental health facility. Because of this holistic approach, spending on medical investigations was reduced by 6%, and the cost of pharmaceutical expenditure decreased by 10%.
Conclusions: The joint medico-psychological treatment prevented, even at early stages, the appearance of somatic and psychic symptoms. This study has positively promoted health and well-being and shown that this type of treatment can help to limit expenses for pharmaceutical prescriptions and specialist diagnostic examinations.
Does excellence matter? National quality awards and performance of Czech municipalities
Authors: Plaček Michal , Špaček David , Ochrana František , Křápek Milan , Dvořáková Petra
Published: November 2019

The purpose of this study is to discuss the influence of excellence in the use of performance management and quality improvements tools on performance of Czech municipalities, and especially their cost efficiency. Municipalities' performance is analyzed using data envelopment analysis focused on inputs. A quasi-experimental design is utilized and excelling municipalities are compared with two control groups. The first is represented by municipalities that use excellence models and quality improvement tools but have not been awarded a national excellence prize; the second by municipalities which do not use them. The results do not indicate any significant difference between the three groups of municipalities. This means that the excellence in utilization of performance management and quality improvement tools does not produce performance approaching that of cost efficiency.
Dream-Reality Monitoring
Authors: Hamatschek Marie Joséphine
Published: November 2019

Träume sind eine wichtige Quelle autobiographischer Erinnerung. Als solche scheint in ihnen ein besonderes Potenzial zu liegen, auf dem Wege einer Quellenverwechslung Scheinerinnerungen zu erzeugen. Dennoch wird die mögliche Bedeutung von Trauminhalten als Basis (auto-)suggestiver Prozesse in der Glaubhaftigkeitsbegutachtung kaum systematisch berücksichtigt. Vor dem theoretischen Hintergrund des Reality Monitoring-Modells fasst diese Arbeit den Forschungsstand zur Unterscheidung von Erinnerungen an Träume und reale Ereignisse (Dream-Reality Monitoring) zusammen. Spezielle Beachtung finden die Fragen, (a) anhand welcher Kriterien Erinnerungen an Träume von Erinnerungen an reale Ereignisse unterscheidbar sind, (b) welche Kriterien und Strategien Menschen für diese Unterscheidung tatsächlich nutzen und (c) wie erfolgreich sie dabei sind. Des Weiteren werden Befunde zu relevanten Personenmerkmalen, Entstehungsbedingungen und Besonderheiten im Erinnerungsverlauf dargestellt. Abschließend werden Implikationen und Empfehlungen für die aussagepsychologische Prüfung auf Auto- und Fremdsuggestion abgeleitet.
Das Recht des Getreidehandels
Authors: Hille Cornelius
Published: November 2019

Grain trade law appeared to be one of the unattended domains at the edge of legal matters for a long time. This insightful and comprehensive contemplation, including classical grain trade as well as commodity securities, aims at closing this gap between agricultural and commercial law. This dissertation appears in a derivative form itself and follows common trade practices. On the one hand, the emphasis is on the legal foundation of classic grain trade with actually delivered goods. On the other hand, the focus lies on commodity derivatives law. To that extent, the author examines the requirements of European Law (especially MiFID II) and its implementation into national German law. In the final analysis, this system is examined in comparison with that of the United States. For that reason, the work is aimed at academics as well as traders.
Arbeitgebermehrheiten
Authors: König Julia Christina
Published: November 2019

There are many reasons why several employers should be involved in one sole employment relationship. These range from the efficient employment of personnel despite the principle of divisional separation in the insurance sector and unbundling regulations in the energy sector to the flexible employment of personnel within the group in accordance with the regulations on the commercial leasing of employees and data protection. Considerations as to how these employment relationships are to be classified in the regulations of the German Civil Code regarding creditor and debtor majorities are often only made when various questions arise from individual or collective employment law. For example, questions regarding the person giving or receiving notice, the debtor of the remuneration, the determination of the works agreements applicable to the employment relationship or the calculation of the number of employees in accordance with the co-determination laws may be mentioned. The work provides answers and includes sample contracts.
Tradition chrétienne et études en spiritualité
Authors: Pouliot Étienne
Published: November 2019

L’apport de la tradition chrétienne dans les études en spiritualité peut être décrit de façon liminaire en fonction de trois orientations majeures dans le champ de la spiritualité : les objets de la spiritualité, le sujet de la spiritualité, l’esprit de la spiritualité (entendu comme le rapport même du sujet-objet de spiritualité).
Identités religieuses musulmanes
Authors: Riikonen Tanja
Published: November 2019

Dans cet article, j’étudie des auto-identifications religieuses de femmes musulmanes en Finlande et au Québec, Canada. Je m’appuie sur ma recherche doctorale et sur un corpus de 15 entrevues effectuées en milieu universitaire et j’analyse les identités musulmanes dans le cadre méthodologique et théorique de la Théorie du Soi Dialogique (TSD) à partir d’une conception d’un sujet hétérogène multivocal. Ce cadre me permet de cerner l’identité comme négociée et instable qui est, en même temps, à la recherche d’une certaine cohérence. Dans l’analyse, je souligne les manières de solidifier et de liquéfier l’identité religieuse musulmane dans le discours des participantes. Le but précis est ainsi d’examiner diverses manières dont les participantes se positionnent, et positionnent les autres, dans le processus d’identification et de négociation identitaire musulmane.
Portraits and Gravestones: Documenting the Transnational Lives of Nineteenth-Century British-Métis Students
Authors: Millions Erin
Published: November 2019

The educational histories of mid-nineteenth century British-Métis students illuminate the transnational travels of British-Métis students and their roles in reifying and challenging British-imperial norms about race, class, and gender in the British Empire. In this paper, photographic and object-based artifacts are interwoven with family correspondence and other archival documents to explore the complexity of British-Métis children’s life stories and the extensive connections between elite British-Métis fur-trade families to kith and kin in North America and Britain. Studio portraits of British-Métis children and their gravesites represent both the best and the worst outcomes of elite educations for British-Métis children and youth. The studio portraits represent the norms of British middle-class respectability that elite British-Métis students learned at colonial and metropolitan schools as part of the imperial project. Gravestones and burial sites, on the other hand, reflect the possibilities and realities of death and trauma that were intertwined with fur-trade children’s boarding school education. By traveling to and living in Britain, British-Metis children challenged metropolitan understandings of the place and role of Indigenous peoples in the Empire and left their marks in Britain in their lives and their deaths.
“Melancholy Courage and Peasant Shrewd Cunning”: The Recruitment of Yugoslav-Canadians for Special Operations Executive Missions during the Second World War
Authors: Petrou Michael
Published: November 2019

During the Second World War, the British Secret Intelligence Service recruited more than thirty Yugoslav-Canadians to infiltrate the Balkans and liaise with resistance groups there as members of the Special Operations Executive. These men were immigrants and political radicals. Most were members of the Communist Party of Canada. Five had fought in the Spanish Civil War. They lived marginalized lives in Canada, were subject to police harassment and at risk of deportation. Yet their recruitment into an organization run by the British ruling class took place with the enthusiastic cooperation of the Communist Party of Canada. The party, and the recruits themselves, recognized that they shared with the British and Canadian governments a desire to fight fascism in Yugoslavia, and that, despite their divergent political ideologies, this common goal justified close and focused collaboration.
Touring Shakespeare: The Stratford Festival, Cultural Funding, and Cultural Diplomacy
Authors: Dougherty Sarah
Published: November 2019

This article examines three key tours of the Stratford Festival from 1967 to 1986. In 1967, the Festival undertook its first and only cross-Canada tour in celebration of the Centennial. In 1973, the Festival staged its most direct production of cultural diplomacy with a Department of External Affairs sponsored tour of Europe. The Festival also went on a substantial tour of the United States in the winter of 1985/1986 with support from External Affairs. During these moments when the company left Stratford to perform elsewhere, the theatre brought with it a performance not only of Shakespeare but also of purported Canadian culture, and was motivated by not only by a cultural agenda but also a commercial one. Drawing on archival records of the Festival’s tours and attempts to gain state funding, this article charts the Festival’s turn away from domestic national touring to international touring and the calculations, done by both the theatre and the state, of the value involved in prioritizing touring outside of Canada over touring the nation. Ultimately, touring Canada was expensive, and was not seen as giving the same return on investment in terms of nationalist prestige, cultural diplomacy, and the attraction of tourists. I argue that through a claim to Canadian national culture, the Stratford Festival attempted to secure state support, with commercial interests for the Festival and town of Stratford at stake.
A Brief Comment on Nora Jaffary’s Reproduction and Its Discontents
Authors: Hernández Sáenz Luz María
Published: November 2019

This article offers a brief commentary on Reproduction and Its Discontents by Nora Jaffary. It includes a short summary and analysis of the work’s main points, with an emphasis on the section on monstrous births and its historical context.
Mothers, Medicine, and Monstrosities: Historicizing Childbirth and Contraception in Nora Jaffary’s Reproduction and Its Discontents — A View from Río Frío
Authors: French William E.
Published: November 2019

Written as the author’s contribution to a roundtable held at the Canadian Historical Association’s annual conference in Regina on Nora Jaffary’s, Reproduction and Its Discontents in Mexico: Childbirth and Contraception from 1750 to 1905, recipient of the 2017 Ferguson prize, the article utilizes a popular nineteenth century Mexican novel, Los bandidos de Río Frío, as a lens through which to reflect upon childbirth, the construction of various systems of medical knowledge, contraception, virginity, monstrosities, the written word, and national imagining in Jaffary’s book. Both authors see a close connection between childbirth and the project of nation building in Mexico: Payno, to foreground the importance of inheritance, and Jaffary, to stress the ways in which laws, learning, institutions, and traditions shaped reproduction and its outcomes. Notable in Jaffary’s work is the eschewing of traditional periodizations of Mexican history in favour of the testing of hypotheses and a focus on the agency of women. Also compelling is Jaffary’s interest in the emergence of the discursive category of the “general public,” a construct that links her work to that of others interested in the “lettered city.”
Reconceiving Reproduction and Its Discontents in Mexico
Authors: Jaffary Nora E.
Published: November 2019

In this work, Jaffary responds to various commentaries about Reproduction and Its Discontents produced by her co-panelists and delineates the genesis and intention of her book by discussing some of the first sources and questions that led her into her research, and some of the key conclusions she draws from the evidence she uncovered.
Settlers, Suffrage, and Transnational Women’s History in Imperial Plots
Authors: Campbell Lara
Published: November 2019

Sarah Carter’s Imperial Plots: Women, Land, and the Spadework of Colonialism on the Canadian Prairies sits at the intersection of women’s history, histories of settler colonialism, and the history of the West. This reflection asks whether (and to what extent) national borders shape the way historians do transnational women’s history and highlights how Western settler colonialism and ideas about gender, race, and political citizenship shaped access to land.
Marcos G. Piñeiro
Authors: Pérez Beatriz
Published: November 2019

Marcos G. Piñeiro, sociólogo y antropólogo, es en la actualidad el director de Concepto05, empresa dedicada a la investigación y el análisis de social media. En esta entrevista nos explica la importancia de que las empresas sean buenas conocedoras de su reputación online.
David Cornadó
Authors: Pérez Beatriz , Blasco Laia , Casado Martínez Carlos
Published: November 2019

Cinephone es un concurso de cortometrajes hechos con el móvil nacido en marzo de 2012 gracias al trabajo conjunto de Lokuos Films y el Café-Teatre Voilà!. David Cornadó, estudiante de la UOC, es uno de los organizadores y, en esta entrevista, nos habla de este novísimo proyecto.
Breve introducción a Agile en la gestión de proyectos multimedia
Authors: Bermejo Marcos
Published: November 2019

"La gestión ágil en proyectos de software está empezando a ser muy popular entre las empresas debido a los buenos resultados que experimentan". Marcos Bermejo nos explica en este divertido y ameno artículo en qué consiste Agile.
El dormitorio desde una tetera
Authors: Vidal i Fortesa Jaume
Published: November 2019

A partir de los conocimientos adquiridos sobre modelado tridimensional se detalla el proceso de creación de una escena de un dormitorio realizado en 3D Studio.
Causal links between parietal alpha activity and spatial auditory attention
Authors: Deng Yuqi , Reinhart Robert MG , Choi Inyong , Shinn-Cunningham Barbara G
Published: November 2019

Both visual and auditory spatial selective attention result in lateralized alpha (8–14 Hz) oscillatory power in parietal cortex: alpha increases in the hemisphere ipsilateral to attentional focus. Brain stimulation studies suggest a causal relationship between parietal alpha and suppression of the representation of contralateral visual space. However, there is no evidence that parietal alpha controls auditory spatial attention. Here, we performed high definition transcranial alternating current stimulation (HD-tACS) on human subjects performing an auditory task in which they directed attention based on either spatial or nonspatial features. Alpha (10 Hz) but not theta (6 Hz) HD-tACS of right parietal cortex interfered with attending left but not right auditory space. Parietal stimulation had no effect for nonspatial auditory attention. Moreover, performance in post-stimulation trials returned rapidly to baseline. These results demonstrate a causal, frequency-, hemispheric-, and task-specific effect of parietal alpha brain stimulation on top-down control of auditory spatial attention.
Periphrases in Spanish: properties, diagnostics and research questions
Authors: Fábregas Antonio
Published: November 2019

This article provides an overview of the main facts and analytical problems that relate to verbal periphrases. The article is structured as follows. In §1 I provide an overview of the main criteria for being a periphrasis, and the constructions that it should be differentiated from. §2 is devoted to the nature of the auxiliary verb, and its limits with other types of verbs. In §3 I talk about the auxiliated verb, and the linking element that sometimes appears in connection to it. §4 briefly discusses the main structure of a periphrasis, and is followed by a few sections about the syntactic behaviour of these linguistic objects. §5 discusses the behaviour of clitics within periphrases; §6 talks about the selectional restrictions; §7 talks about the behaviour of passives with these structures. §8 discusses the semantic classification of periphrases and some of the research problems that they trigger. §9 talks about sequences of periphrases, and their additional restrictions.
Semántica y sintaxis de la perífrasis "estar para + infinitivo"
Authors: González Raquel , Martín Gómez Félix
Published: November 2019

En este trabajo abordamos el estudio de las propiedades sintácticas y semánticas de la perífrasis . Desde el punto de vista semántico, se suele considerar que se trata de una perífrasis de inminencia. Nosotros ofrecemos argumentos en contra de esta caracterización, los cuales están basados en la asimetría que presentan en su comportamiento  y la perífrasis de inminencia .  Defendemos, por tanto, que su significado es otro y, en concreto, que expresa que se dan ciertas condiciones previas asociadas a la realización del evento denotado por el infinitivo. Desde el punto de vista sintáctico, mostramos que, a pesar de lo que podría seguirse en un primer momento de la denotación que proponemos,  no es el resultado de elidir listo en .  La razón es que no se comporta ni como esta construcción copulativa ni tampoco como  con valor de finalidad en lo que respecta al estatus de para y la biclausalidad.
Identification of prognostic gene signature associated with microenvironment of lung adenocarcinoma
Authors: Yue Cheng , Ma Hongtao , Zhou Yubai
Published: November 2019

Background

Lung cancer has the highest morbidity and mortality worldwide, and lung adenocarcinoma (LADC) is the most common pathological subtype. Accumulating evidence suggests the tumor microenvironment (TME) is correlated with the tumor progress and the patient’s outcome. As the major components of TME, the tumor-infiltrated immune cells and stromal cells have attracted more and more attention. In this study, differentially expressed immune and stromal signature genes were used to construct a TME-related prognostic model for predicting the outcomes of LADC patients.

Methods

The expression profiles of LADC samples with clinical information were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). The differentially expressed genes (DEGs) related to the TME of LADC were identified using TCGA dataset by Wilcoxon rank sum test. The prognostic effects of TME-related DEGs were analyzed using univariate Cox regression. Then, the least absolute shrinkage and selection operator (LASSO) regression was performed to reduce the overfit and the number of genes for further analysis. Next, the prognostic model was constructed by step multivariate Cox regression and risk score of each sample was calculated. Then, survival and Receiver Operating Characteristic (ROC) analyses were conducted to validate the model using TCGA and GEO datasets, respectively. The Kyoto Encyclopedia of Genes and Genomes analysis of gene signature was performed using Gene Set Enrichment Analysis (GSEA). Finally, the overall immune status, tumor purity and the expression profiles of HLA genes of high- and low-risk samples was further analyzed to reveal the potential mechanisms of prognostic effects of the model.

Results

A total of 93 TME-related DEGs were identified, of which 23 DEGs were up-regulated and 70 DEGs were down-regulated. The univariate cox analysis indicated that 23 DEGs has the prognostic effects, the hazard ratio ranged from 0.65 to 1.25 (p < 0.05). Then, seven genes were screened out from the 23 DEGs by LASSO regression method and were further analyzed by step multivariate Cox regression. Finally, a three-gene (ADAM12, Bruton Tyrosine Kinase (BTK), ERG) signature was constructed, and ADAM12, BTK can be used as independent prognostic factors. The three-gene signature well stratified the LADC patients in both training (TCGA) and testing (GEO) datasets as high-risk and low-risk groups, the 3-year area under curve (AUC) of ROC curves of three GEO sets were 0.718 (GSE3141), 0.646 (GSE30219) and 0.643 (GSE50081). The GSEA analysis indicated that highly expressed ADAM12, BTK, ERG mainly correlated with the activation of pathways involving in focal adhesion, immune regulation. The immune analysis indicated that the low-risk group has more immune activities and higher expression of HLA genes than that of the high-risk group. In sum, we identified and constructed a three TME-related DEGs signature, which could be used to predict the prognosis of LADC patients.
Characteristics of the vaginal microbiome in cross-border female sex workers in China: a case-control study
Authors: Hong Xiang , Fang Shenghao , Huang Kaiping , Yin Jiechen , Chen Jianshuang , Xuan Yan , Zhu Jing , Ma Jun , Qin Pengfei , Peng Danhong , Wang Ning , Wang Bei
Published: November 2019

Background

Female sex workers (FSWs) are key groups in the transmission of sexual transmitted infections (STI), and vaginal microbiome variations play an important role in transmission. We aimed to explore the characteristics of vaginal microbiome among FSWs.

Materials and Methods

A total of 24 cross-border FSWs were randomly selected from a cross-sectional survey for female sex workers in southwest China. Thirty-seven female non-sex workers (FNSWs) were randomly selected from the gynecology clinic and health examination center. Vaginal swabs were collected, bacterial DNA extracted and 16S rRNA genes were sequenced. Differences in the vaginal microbiome between both groups were compared using bioinformatics analysis.

Results

One DNA sample was excluded due to unqualified concentration, therefore 60 samples were sequenced. FSWs had significantly different vaginal microbiota β diversity, but undifferentiated α diversity when compared with non-sex workers. The average relative abundance ofSneathia,Shigella,Neisseria,Chlamydia,Prevotella,EnterococcusandUreaplasmaamong FSWs was higher than FNSWs, and relative abundance ofAtopobiumin FSWs was lower than FNSWs. TheLactobacillusgenus was the major genus in both groups. At the species level,Lactobacllus crispatus,Lactobacllus gasseriandLactobacllus jensenii, in female sex workers, were lower when compared to FNSWs.

Conclusion

There were distinct differences in vaginal bacteria variety between FSWs and FNSWs. Some disease-related genus were also more abundant in FSWs. Based on these observations, further research is required to identify microbiome communities related to high STI risks and other diseases in these cohorts.
Brain structural and functional changes in patients with major depressive disorder: a literature review
Authors: Dai Lisong , Zhou Hongmei , Xu Xiangyang , Zuo Zhentao
Published: November 2019

Depression is a mental disorder characterized by low mood and anhedonia that involves abnormalities in multiple brain regions and networks. Epidemiological studies demonstrated that depression has become one of the most important diseases affecting human health and longevity. The pathogenesis of the disease has not been fully elucidated. The clinical effect of treatment is not satisfactory in many cases. Neuroimaging studies have provided rich and valuable evidence that psychological symptoms and behavioral deficits in patients with depression are closely related to structural and functional abnormalities in specific areas of the brain. There were morphological differences in several brain regions, including the frontal lobe, temporal lobe, and limbic system, in people with depression compared to healthy people. In addition, people with depression also had abnormal functional connectivity to the default mode network, the central executive network, and the salience network. These findings provide an opportunity to re-understand the biological mechanisms of depression. In the future, magnetic resonance imaging (MRI) may serve as an important auxiliary tool for psychiatrists in the process of early and accurate diagnosis of depression and finding the appropriate treatment target for each patient to optimize clinical response.
PORTFÓLIOS REFLEXIVOS E ESCRITA DE SI: O QUE REVELAM AS CRIANÇAS?
Authors: Simas Vanessa França , Prado Guilherme Do Val Toledo
Published: November 2019

Este artigo é sobre portfólios reflexivos construídos por crianças de um primeiro ano do ensino fundamental. Trata-se de um estudo de caso cujo objetivo é construir compreensões acerca do que a escrita que os educandos produzem revela a eles próprios e à professora. Os dados são os portfólios produzidos pelas crianças. Analisa-se o que evidenciam em seus portfólios e como ocorre o movimento reflexivo sobre si e sobre a própria aprendizagem. A escrita nos portfólios revelou que a sua construção possibilitou reflexões discente, produção de sentidos, buscas por estabelecer relações, exercícios de metacognição e avaliações da aprendizagem e do ensino. Ademais, quando os alunos revelaram os sentidos que atribuiam às propostas didáticas, eles possibilitaram à professora uma reorganização da prática em favor dos aprendizados das crianças.
GÊNERO EM LIVROS DIDÁTICOS: ANÁLISE DE DOIS LIVROS DA EJA (LÍNGUA PORTUGUESA E LÍNGUAS ESTRANGEIRAS MODERNAS)
Authors: Kabke Pinheiro Renata Kabke , Da Silva Márcia Alves
Published: November 2019

No Brasil, apesar de a docência ser exercida majoritariamente por mulheres, é possível perceber uma falta de conhecimento sobre os estudos feministas e de gênero. Isso pode ter reflexos em sala de aula, já que os livros didáticos muitas vezes trazem representações de gênero estereotipadas, podendo influenciar a construção da identidade das estudantes. Neste estudo, observamos como a mulher é representada e qual sua representatividade nas imagens dos livros de Língua Portuguesa e Língua Estrangeira selecionados pela rede municipal de ensino para a Educação de Jovens e Adultos em nossa cidade. Nosso objetivo é fornecer um exemplo de como essa observação crítica pode ser feita pelas/os docentes e servir de base para um trabalho em sala de aula visando desconstruir as representações estereotipadas, a invisibilidade e o desprestígio da mulher.
EVASÃO NOS CURSOS DE FORMAÇÃO DE PROFESSORES: O CASO DE UM CURSO DE LICENCIATURA EM QUÍMICA
Authors: Deimling Natalia Neves Macedo , Da Silva Daniele Cristina
Published: November 2019

Com o objetivo de analisar e discutir os possíveis fatores desencadeadores da evasão acadêmica nos cursos de licenciatura, foi analisado o caso de um curso de Licenciatura em Química de uma universidade Federal brasileira entre os anos de 2016 e 2017. Para a análise dessa problemática, os estudo contou com as visões e percepções dos próprios estudantes que desistiram do curso. Um questionário foi enviado a 214 estudantes que entre o primeiro semestre de 2011 e o primeiro semestre de 2016 evadiram-se do curso. Ao todo foram obtidas 59 participações. A partir da análise dos dados, podemos observar que vários fatores têm desencadeado a evasão acadêmica no curso em questão, dentre eles a ausência de condições que garantam não apenas o seu acesso, mas também a sua permanência no curso de licenciatura e na futura profissão.
Modeling of Neutral Red Adsorption on Apple Peel Based Activated Carbon
Authors: Demir Canan , Yıldız Halime , Kul Ali Rıza , Keskin Sıddık
Published: November 2019

Neutral red is used in textile industry as dyestuff. Dyestuffs which remain unchanged throughout the process in the wastewater treatment plants have toxic effects. In this study, removal of neutral red dyestuff from aqueous medium of active carbon obtained from apple peel waste was investigated. For this purpose, the apple peel was pretreated into 2 mm pieces. Chemical Activation of apple peel with ZnCl2 was used in activated carbon preparation. The amount of adsorbed material at different temperatures (25, 35, 45°C) and concentrations (100, 150, 200 ppm)  was determined. In addition to the linear model, 4 different nonlinear models were used to model the adsorbed material. From these models, the best estimate for all temperature values and concentrations gave the cubic model.
Microbiological Examination and Physicochemical Analysis of Estuary Water Used as a Point of Source Drinking Water
Authors: O. Edet U. , P. Antai S. , A. Brooks A. , D. Asitok A.
Published: November 2019

Introduction: Access to potable water is a fundamental human right. However, this is hardly the case in the rural areas of oil producing communities of the Niger Delta.

Aim of Study: The primary aim of this study was therefore to evaluate the physicochemical and microbiological qualities of estuary water used as potable water.

Method: Estuary water samples were collected from Eastern Obolo community in Akwa Ibom State, Niger Delta, Nigeria and analysed for physiochemical using standard techniques, and microbiological parameters using standard cultural and metagenomics techniques. Replicate data from microbiological and physicochemical analyses were analyzed using analysis of variance (ANOVA) while bioinformatic analyses were done using Vecton NTI suite 9 (InforMax, Inc.), NCBI-BLAST-2.2.24 and CLC bio Genomics workbench v7.5.1.

Results: Physicochemical analysis showed that the levels of metals such as chromium, nickel, zinc and iron and as well as turbidity were significantly higher than acceptable standards. Bacterial counts ranged from 0.64 to 1.00 (x 105) cfu/ml. Fungal counts ranged from 2.00 to 4.00 (x 102) cfu/ml. Esherichia coli, Citrobacter, Bacillus, Micrococcus, Pseudomonas and Flavobacterium, Shigella, Salmonella and Vibrio species were isolated using cultural means. Total coliforms counts were higher in location E6 which was closest to the community. Metagenomics analysis gave a total of six kingdoms namely bacteria, unknown, protozoa, archae, plantae and fungi in decreasing order of read counts. Furthermore, it revealed a total of 16 phyla, 24 classes, 38 orders, 39  families and 209 species of bacteria. Some pathogens not captured by cultural means such as Clostridium species, Vibrio alginolyticus, Vibrio neresis, Staphylococcus kloosii, Corynebacterium diptheriae, and uncultured species such as uncultured Helicobacter were all captured by metagenomics.

Conclusion: Although, cultural methods used in this study were able to capture water borne disease pathogens, metagenomics captured much more kingdoms and species. Where possible, both techniques should be used in the microbiological examination of water samples.
Bacteriological Assessment of Chicken Meat, Chicken Meat Products and Its Impact of Human Enteric Infections in Taif Governorate
Authors: Mansour Ahmed M. A.
Published: November 2019

From different shops and supermarkets at Taif governorate in KSA; a total number of 105 samples were collected. They were 35 samples from raw chicken meat, 35 samples from frozen chicken meat burger and 35 samples from chicken meat luncheon. The samples were examined for their organoleptic and bacteriological quality; the results revealed that, 8.6% and 2.9% of the examined raw chicken meat and frozen chicken burger were unaccepted while all examined samples of chicken-luncheon were accepted.

The bacteriological  examination revealed that, the bacterial counts in frozen chicken burger samples were higher than that detected in raw chicken meat and chicken luncheon samples whereas 51.4%, of the frozen chicken burger were exceeded the permissible limit, but 45.7% of the raw chicken meat samples exceeded the permissible limit, while 20% from the chicken luncheon samples exceeded the permissible limit, moreover, E. coli, Enterobacter aerogenes, Enterobacter cloaca, Klebsiella aerogenes, Citrobacter freundii, Proteus vulgaris, Morganella morganii, Providencia stuartii and Providencia rettergii could be isolated from the examined samples of raw chicken meat and frozen chicken burger in varying percentages ranged from 2.86 to 22.85% and 2.86 to 20.00% respectively, while Enterobacter aerogenes, Klebsiella aerogenes, Citrobacter freundii, P. vulgaris and Morganella morganii only were detected in chicken luncheon in a percentage varying from 5.17 to 17.14%.

Furthermore, Campylobacter jejuni were isolated in a percentage of 14.3, 8.8 and 2.9% from the former examined samples respectively, while Salmonella organism were detected in raw chicken meat samples in a percentage of 5.7% but failed to be isolated from frozen chicken burger and chicken luncheon samples.

The relationship between total aerobic count and the incidence of Campylobacter jejuni and Salmonella pathogens as well as the public health significance of the isolated organisms and preventive measures to improve the quality of the products were discussed.
Evaluation of Antibacterial Properties of Stem Extract of Andrographis paniculata- Nees on Some Antibiotic Resistant Bacterial Isolates
Authors: Awoyinka E. O. , Ogundare A. O. , Adebolu T. T.
Published: November 2019

The aim of this research is to investigate the antibacterial and phytochemical properties of stem extract of Andrographis paniculata (Nees). The phytochemical and antibacterial activities of the stem of Andrographis paniculata were determined using standard methods. The phytochemical analysis revealed the presence of saponin, tannin, terpenoid, phlobotannin and flavonoid in methanol, n- hexane, and aqueous extracts, but there was absence of tannin in the aqueous extract. Saponin was the most abundant in the methanol extract with the value of 20.22 mg/ml, followed by the n-hexane extract (19.56 mg/ml) while the least was recorded against the aqueous extract (15.34 mg/ml). Flavonoid and terpenoid were present in appreciable amount in all the extracts. Resistant pattern against the antibiotics considered are as follows: Gentamycin (56%), Cefuroxime (100%), Ceftazidime (100%), Augmentin (100%), Ofloxacin (33%), Ampicillin (100%), Nitrofurantoin (67%), Ciprofloxacin (50%), Ceftriaxione (100%), Erythromycin (33%) and Cloxacin (100%). S. typhi, P. aeruginosa, S. dysentriae, and P. mirabilis showed complete resistance to all the antibiotics used while on the gram positive bacterial isolates, B. cereus was resistant to all the antibiotics used. All the bacterial isolates were susceptible to n- hexane and methanol extracts with the zone of inhibition ranging from 10-17 mm and 11-28 mm respectively. The aqueous extract did not exert much antibacterial activity on the tested isolates. Pseudomonas aeruginosa isolated from wound was the most susceptible to the methanol extract with the value of 28 mm. All the gram positive isolates used were more susceptible to the n- hexane extract such as S. aureus, E. faecalis and B. cereus with the zone of inhibition of 17 mm, 19 mm and 16 mm respectively. The Minimum Inhibitory Concentrations ranged between 3.125 mg/ml and 50 mg/ml. Findings from this study suggest that the stem extract of A. paniculata especially methanolic extract possess broad spectrum activities against the antibiotic resistant isolates tested, hence could be used for the treatment of infections implicated by the bacterial used in this study.
Portraits of James I and James II, kings of Scots
Authors: Hepburn Frederick
Published: November 2019

This paper presents an inquiry into the origins of some painted portrait images of James I and James II of Scotland which are first attested in the late 16th century. That the likenesses are not authentic is shown by comparisons with images of the two kings which have a demonstrable claim to authenticity, and by a consideration of the costumes depicted: the latter were evidently derived from sources which, although of 15th-century date, were too late in the century to have been authentic for these particular rulers. On the evidence of the sets of portraits to which these paintings belong, one in Edinburgh and another in Munich, it is suggested that the faces of James I and II were based on those of the (authentic) images of James III and IV respectively.
Silver Nanofilament Formation Dynamics in a Polymer‐Ionic Liquid Thin Film by Direct Write
Authors: Chao Zhongmou , Sezginel Kutay B. , Xu Ke , Crouch Garrison M. , Gray Abigale E. , Wilmer Christopher E. , Bohn Paul W. , Go David B. , Fullerton‐Shirey Susan K.
Published: November 2019

Silver nanofilament formation dynamics are reported for an ionic liquid (IL)‐filled solid polymer electrolyte prepared by a direct‐write process using a conductive atomic force microscope (C‐AFM). Filaments are electrochemically formed at hundreds of xy locations on a ≈40 nm thick polymer electrolyte, polyethylene glycol diacrylate (PEGDA)/[BMIM]PF6. Although the formation time generally decreases with increasing bias from 0.7 to 3.0 V, an unexpected non‐monotonic maximum is observed ≈2.0 V. At voltages approaching this region of inverted kinetics, IL electric double layers (EDLs) become detectable; thus, the increased nanofilament formation time can be attributed to electric field screening, which hinders silver electromigration and deposition. Scanning electron microscopy confirms that nanofilaments formed in this inverted region have significantly more lateral and diffuse features. Time‐dependent formation currents reveal two types of nanofilament growth dynamics: abrupt, where the resistance decreases sharply over as little as a few ms, and gradual where it decreases more slowly over hundreds of ms. Whether the resistance change is abrupt or gradual depends on the extent to which the EDL screens the electric field. Tuning the formation time and growth dynamics using an IL opens the range of accessible resistance states, which is useful for neuromorphic applications.
Development of Injectable Amniotic Membrane Matrix for Postmyocardial Infarction Tissue Repair
Authors: Henry Jeffrey J. D. , Delrosario Lawrence , Fang Jun , Wong Sze Yue , Fang Qizhi , Sievers Richard , Kotha Surya , Wang Aijun , Farmer Diana , Janaswamy Praneeth , Lee Randall J. , Li Song
Published: November 2019

Ischemic heart disease represents the leading cause of death worldwide. Heart failure following myocardial infarction (MI) is associated with severe fibrosis formation and cardiac remodeling. Recently, injectable hydrogels have emerged as a promising approach to repair the infarcted heart and improve heart function through minimally invasive administration. Here, a novel injectable human amniotic membrane (hAM) matrix is developed to enhance cardiac regeneration following MI. Human amniotic membrane is isolated from human placenta and engineered to be a thermoresponsive, injectable gel around body temperature. Ultrasound‐guided injection of hAM matrix into rat MI hearts significantly improves cardiac contractility, as measured by ejection fraction (EF), and decrease fibrosis. The results of this study demonstrate the feasibility of engineering as an injectable hAM matrix and its efficacy in attenuating degenerative changes in cardiac function following MI, which may have broad applications in tissue regeneration.
Novel Organophosphate‐Derived Dual‐Layered Interface Enabling Air‐Stable and Dendrite‐Free Lithium Metal Anode
Authors: Liu Xuejun , Liu Jie , Qian Tao , Chen Hongli , Yan Chenglin
Published: November 2019

Lithium (Li) metal, as a promising candidate for next‐generation energy storage systems, suffers from an extremely unstable interface that is prone to crack, causing serious corrosion of Li metal and dendrite growth. To address this, a novel dual‐layered interface on the Li metal anode is reported, which is featured with organics (COPO3, (CO)2PO2, and (CO)3PO) on the top and inorganics (Li3PO4) at the bottom. The flexible organic layer with reduced Young's modulus (≈550 MPa) contributes to maintain structural integrity, while the rigid inorganic layer with improved Young's modulus of ≈12 GPa is beneficial to suppress the Li dendrite growth. Accordingly, the protected Li is stabilized to maintain successive electrodeposition over 800 cycles of plating/stripping process at a current density of 2 mA cm−2. Furthermore, the uniform dual‐layered interface tends to prevent the corrosion of air to Li metal, exhibiting almost the same performance as the Li metal treated in the inert atmosphere.
Coupling Topological Insulator SnSb2Te4 Nanodots with Highly Doped Graphene for High‐Rate Energy Storage
Authors: Wu Zhibin , Liang Gemeng , Pang Wei Kong , Zhou Tengfei , Cheng Zhenxiang , Zhang Wenchao , Liu Ye , Johannessen Bernt , Guo Zaiping
Published: November 2019

Topological insulators have spurred worldwide interest, but their advantageous properties have scarcely been explored in terms of electrochemical energy storage, and their high‐rate capability and long‐term cycling stability still remain a significant challenge to harvest. p‐Type topological insulator SnSb2Te4 nanodots anchoring on few‐layered graphene (SnSb2Te4/G) are synthesized as a stable anode for high‐rate lithium‐ion batteries and potassium‐ion batteries through a ball‐milling method. These SnSb2Te4/G composite electrodes show ultralong cycle lifespan (478 mAh g−1 at 1 A g−1 after 1000 cycles) and excellent rate capability (remaining 373 mAh g−1 even at 10 A g−1) in Li‐ion storage owing to the rapid ion transport accelerated by the PN heterojunction, virtual electron highways provided by the conductive topological surface state, and extraordinary pseudocapacitive contribution, whose excellent phase reversibility is confirmed by synchrotron in situ X‐ray powder diffraction. Surprisingly, durable lifespan even at practical levels of mass loading (>10 mg cm−2) for Li‐ion storage and excellent K‐ion storage performance are also observed. This work provides new insights for designing high‐rate electrode materials by boosting conductive topological surfaces, atomic doping, and the interface interaction.
Comparison ofArachis monticolawith Diploid and Cultivated Tetraploid Genomes Reveals Asymmetric Subgenome Evolution and Improvement of Peanut
Authors: Yin Dongmei , Ji Changmian , Song Qingxin , Zhang Wanke , Zhang Xingguo , Zhao Kunkun , Chen Charles Y. , Wang Chuantang , He Guohao , Liang Zhe , Ma Xingli , Li Zhongfeng , Tang Yueyi , Wang Yuejun , Li Ke , Ning Longlong , Zhang Hui , Zhao Kai , Li Xuming , Yu Haiyan , Lei Yan , Wang Mingcheng , Ma Liming , Zheng Hongkun , Zhang Yijing , Zhang Jinsong , Hu Wei , Chen Z. Jeffrey
Published: November 2019

Like many important crops, peanut is a polyploid that underwent polyploidization, evolution, and domestication. The wild allotetraploid peanut speciesArachis monticola(A. monticola) is an important and unique link from the wild diploid species to cultivated tetraploid species in theArachislineage. However, little is known aboutA. monticolaand its role in the evolution and domestication of this important crop. A fully annotated sequence of ≈2.6 GbA. monticolagenome and comparative genomics of theArachisspecies is reported. Genomic reconstruction of 17 wild diploids from AA, BB, EE, KK, and CC groups and 30 tetraploids demonstrates a monophyletic origin of A and B subgenomes in allotetraploid peanuts. The wild and cultivated tetraploids undergo asymmetric subgenome evolution, including homoeologous exchanges, homoeolog expression bias, and structural variation (SV), leading to subgenome functional divergence during peanut domestication. Significantly, SV‐associated homoeologs tend to show expression bias and correlation with pod size increase from diploids to wild and cultivated tetraploids. Moreover, genomic analysis of disease resistance genes shows the unique alleles present in the wild peanut can be introduced into breeding programs to improve some resistance traits in the cultivated peanuts. These genomic resources are valuable for studying polyploid genome evolution, domestication, and improvement of peanut production and resistance.
Dysprosium Iron Garnet Thin Films with Perpendicular Magnetic Anisotropy on Silicon
Authors: Bauer Jackson J. , Rosenberg Ethan R. , Kundu Subhajit , Mkhoyan K. Andre , Quarterman Patrick , Grutter Alexander J. , Kirby Brian J. , Borchers Julie A. , Ross Caroline A.
Published: November 2019

Magnetic insulators, such as the rare‐earth iron garnets, are promising materials for energy‐efficient spintronic memory and logic devices, and their anisotropy, magnetization, and other properties can be tuned over a wide range through selection of the rare‐earth ion. Films are typically grown as epitaxial single crystals on garnet substrates, but integration of these materials with conventional electronic devices requires growth on Si. The growth, magnetic, and spin transport properties of polycrystalline films of dysprosium iron garnet (DyIG) with perpendicular magnetic anisotropy (PMA) on Si substrates and as single crystal films on garnet substrates are reported. PMA originates from magnetoelastic anisotropy and is obtained by controlling the strain state of the film through lattice mismatch or thermal expansion mismatch with the substrates. DyIG/Si exhibits large grain sizes and bulk‐like magnetization and compensation temperature. Polarized neutron reflectometry demonstrates a small interfacial nonmagnetic region near the substrate. Spin Hall magnetoresistance measurements conducted on a Pt/DyIG/Si heterostructure demonstrate a large interfacial spin mixing conductance between the Pt and DyIG comparable to other garnet/Pt heterostructures.