bluuebunny/crossref_metadata_2025 huggingface dataset:
Big Data et pratiques de GRH
Authors: Coron Clotilde
Published: May 2020

Le Big Data constitue un phénomène qui irrigue aujourd’hui nombre de domaines : marketing, biologie, justice… La définition commune du Big Data, issue du rapport de Gartner de 2001, se fonde essentiellement sur les caractéristiques des données mobilisées : volume, hétérogénéité des sources et du degré de structuration, mise à jour en temps réel des données… Cette définition peut sembler restrictive, mais d’autres définitions plus récentes et plus englobantes permettent d’identifier quelques dispositifs introduisant du Big Data dans les RH. En mobilisant les notions de dispositifs et de pratiques de GRH, et en nous centrant sur trois dispositifs mobilisant des données en RH, nous cherchons à qualifier les objectifs de modification de pratiques de GRH portés par les dispositifs de Big Data RH, autour de la personnalisation et de la prédiction.
Herder’s Kritische Wälder: A Vegetal Topography of Critique
Authors: Baumeister Anna-Lisa
Published: May 2020

Johann Gottfried Herder’s Kritische Wälder [Critical Forests] capture the project of literary critique in an apparent oxymoron. The title of the essay compilation (containing altogether four diminutive forests or Wäldchen) features vegetative life
[Wälder] alongside discourse [Kritik], which, in the eighteenth century as much as today, is generally regarded as the opposite of what is “natural.” Against readings that understand Herder’s vegetal poetological metaphors as essentialist “fictions”104
of immediate cultural production, I argue that Herder’s Kritische Wälder (1769) enact a materialist meta-theory of literary criticism that is modeled after the organizational form of the forest, in conversation with eighteenth-century Forstbotanik. Herder’s notion
of Kritische Wälder challenges the paradigm of the critic as “weeder” prevalent in eighteenth-century hermeneutics, whose task it is to cultivate a critical literary discourse through the removal of improper readings. The Wälder, in contrast, envision Kritik
as an interdependent cycle of productive overgrowth, accumulation, and decay, Zufall being the condition of its vitality. Taking Herder’s model of Kritik as a central case in point, my reading relates the shift from philological to speculative criticism around 1800 to concurrent
developments in Forstbotanik. I show how Herder responds to central questions of the Forstbotanik of his era, suggesting, as he does, that forests are functioning systems. On a different level, my argument also contributes to the histories of genius and the organic work of art,
illustrating intersubjective and materialist facets of the concepts. I make my argument, first, by situating Herder’s Kritische Wälder in the context of visions of the proper forest in eighteenth-century Forstbotanik and hermeneutics and, second, by highlighting the
concrete composition of Herder’s text as a collection and recycling of discarded materials from former projects.
Restaurationsarbeiten im imaginierten Garten in Hilde Domins Das zweite Paradies
Authors: Swiderski Carla
Published: May 2020

In Hilde Domins Gedicht Sehnsucht wird die Sehnsucht nach einem Ort zum Bleiben beschrieben. Mit der Gleichsetzung von Mensch und Pflanze wird der Wunsch des Menschen nach Stetigkeit aufgerufen, da das Bild des pflanzlichen Verwurzeltseins im Erdboden evoziert wird. Das Verwurzeltsein
ist eine beliebte Metapher, um Verbundenheit mit einer bestimmten Region, einer Gemeinschaft, einer Kultur oder auch einer Zeit auszudrücken und diese durch das pflanzliche Sprachbild als natürlich und nicht hinterfragbar darzustellen.179 Die Wurzelmetapher dient also
der (Zu-)Ordnung und markiert das menschliche Bedürfnis nach Identität und Zugehörigkeit.180 In Domins Gedicht jedoch wird die Vorstellung des Verwurzeltseins sofort gestört durch den Verweis darauf, dass ein passender Boden erst noch gefunden werden muss. Denn
der Mensch ist im Gegensatz zu – den meisten – Pflanzen nicht mit einem bestimmten Ort verwachsen, da er rein physiologisch keine Wurzeln besitzt. Er ist mobil und muss sich seinen Platz auf der Erde erst und gegebenenfalls immer wieder neu suchen.
Recommendations from GATCU for management of emergent surgical procedures during the COVID-19 pandemic (SARS-COV-2)
Authors: López Ruiz JA , Tallón Aguilar L , Pareja Ciuró F , Aranda Narváez J
Published: May 2020

La pandemia global por COVID-19 (SARS-COV-2) ha provocado una saturación de los servicios sanitarios, lo cual también ha afectado a las urgencias quirúrgicas. Dado el carácter no demorable de dichas urgencias, es importante el establecer unas recomendaciones de actuación en estos casos. Estas recomendaciones tratan sobre el manejo de las patologías quirúrgicas urgentes más frecuentes y de los pacientes politraumatizados durante la pandemia, así como las medidas a tomar con los pacientes infectados o con sospecha de infección por COVID-19, con el objetivo de garantizar una asistencia adecuada a nuestros pacientes, así como minimizar el riesgo de contagio de los equipos quirúrgicos.
Teoria da regulação:
Authors: Malaguti Manoel Luiz
Published: May 2020

Sem resumo.
The Role of Perceived Risk and Trust Propensity in The Relationship Between Negative Perceptions of Applying Big Data Analytics and Consumers’ Responses
Authors: Le Thi Mai , Liaw Shu-yi , Bui My-Trinh
Published: May 2020

With the phenomenal growth of Big Data in e-commerce, applying big data analytics brings negative perception for customers, in one way or another. The research on negative perception of applying big data analytics and the role of perceived risk and trust propensity to consumers’ responses under applying Big Data analytics is lacking. Therefore, the aims of this study are to analyze the role of perceived risk and trust propensity in the relationship between negative perceptions of applying big data analytics and consumers’ responses. A sample of 349 respondents was used in data analysis. The study found out that perceived risk don’t act mediate the relationship between negative perception of applying BDA and consumers’ responses. Besides, customers’ trust propensity was found to moderate the relation of negative perception of applying BDA to customers’ responses and perceived risk to customers’ responses. High trust propensity participants reported stronger responses than those with low trust propensity. It due to customers’ trust on new applications of BDA, hence, it is easy to influence on customers as their negative response when negative perception and perceived risk are rising. The findings of this research will have implications for e-vendors to understand the important role of perceived risk and trust propensity on customers’ responses under Big Data analytics era.
Fisiología del estrés y su integración al sistema nervioso y endocrino.
Authors: Romero Romero Emilio Eduardo , Young José , Salado-Castillo Rigoberto
Published: May 2020

Actualmente el estrés puede ser definido como el mecanismo de enlace entre un agente estresor y su órgano diana que resulta en una respuesta psicofisiológica, caracterizada por liberación de glucocorticoides.

La respuesta al estrés está mediada por dos sistemas distintos, los cuales están interrelacionados, estos son: El sistema simpático-adrenomedular (SAM) y el sistema hipotalámico-pituitario-adrenocortical (HPA). El sistema SAM es una región de la división simpática del sistema nervioso autónomo, que libera adrenalina de la médula; en cambio, el eje HPA, se encarga de la producción de glucocorticoides.

La presente revisión tiene como primer objetivo definir y clasificar al estrés y como segundo objetivo indicar cuáles son los principales sistemas afectados por el estrés, por último, indicaremos el efecto del estrés en la memoria y la relación entre el estrés y la ganancia de peso.

La respuesta al estrés se puede dar con la activación de diferentes vías fisiológicas, una de efectos inmediatos, la segunda de efectos intermedios y la última denominada estrés crónico.

HPA al ser estimulado por eventos estresantes, provoca la elevación de glucocorticoides que estimulan la ingesta de comida, en particular alimentos con alto contenidos calóricos, esta ingesta puede ser utilizada por los individuos como método de afrontamiento contra el estrés y finalmente inducir el trastorno de obesidad.
High Seropositivity of HIV, Hepatitis and Syphilis in Prisoner Blood Donors than the General Population Volunteers from the Punjab, Pakistan –A Longitudinal 13 Years Study
Authors: Imran Qadeer  , Muhammad Aslamkhan  , Muhammad Shoaib Akhtar  , Fazal Ellahi
Published: May 2020

Background: HBV, HCV, HIV and Syphilis are leading transfusion transmitted infections. Blood donors are screened against these infectious diseases before transfusion to patients.Methods: Data of general population and volunteer prisoner blood donors is retrieved from records of January 2007 to September 2009. Data is analysed using Epi Info version 3.5.1. Blood donors were screened using ELISA method against HCV, HBV, and HIV while VDRL method is used for screening against Syphilis.Results: Prevalence of HBV, HCV, HIV, and Syphilis in general population blood donors is 3.3%, 4.7%, 0.51% and 0.47% respectively. Prevalence of HBV, HCV, HIV, and Syphilis in prisoner blood donation is 7.81%. 15.42%, 1.17%, and 7.63% respectively.Conclusion: Prevalence of HBV, HCV, HIV and Syphilis is high in prisoners as compared to general population.
Effect of the addition of the antioxidant taurine on the complete blood count of whole blood stored at room temperature and at 4°C for up to 3 days
Authors: Ghaffar Muhammad Abdul , Naveed Muhammad Asif , Dar Rehma
Published: May 2020

Background: The complete blood count is one of the most common routine tests. This study aimed to evaluate possible effects of the antioxidant taurine on the complete blood count of whole blood stored at room temperature and at 4°C over three days.Methods: Venous blood samples of 15 healthy males were distributed into two sets of tubes with each set of three tubes containing 50 ?L of solutions with zero, 5 g/L, 10 g/L taurine. The tubes were kept at room temperature or at 4°C. Complete blood counts were performed on three successive days. The mean percentage changes [? = (mean value – mean baseline value) / mean baseline value x 100] were calculated and compared.Results: Complete blood count parameters exhibited different patterns of behaviour which were affected by the storage temperature, time and taurine concentration. Taurine at room temperature significantly enhanced the stability of: the platelet count over three days (?3 at 5 and 10 g/L taurine were 6.18, and 2.53 x 109 cells/L, respectively); the red blood cell count over three days (?3 at 5 and 10 g/L taurine were 2.59, and 1.39 x 1012 cells/L, respectively); mean corpuscular haemoglobin over three days (?3 at 5 and 10 g/L taurine were,-0.62 and -0.52 fl respectively); and red cell distribution width over two days (?2 at 5 and 10 g/L taurine were 1.30% and -0.1%, respectively). No additional stabilizing effects of taurine were reported for the mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration, haematocrit and haemoglobin, while it negatively affected the white blood cell stability.Conclusion: Complete blood count parameters exhibited variable stability patterns in respect to temperature, time and taurine concentration.
The Heliospheric Current Sheet and Plasma Sheet during Parker Solar Probe’s First Orbit
Authors: Lavraud B. , Fargette N. , Réville V. , Szabo A. , Huang J. , Rouillard A. P. , Viall N. , Phan T. D. , Kasper J. C. , Bale S. D. , Berthomier M. , Bonnell J. W. , Case A. W. , Dudok de Wit T. , Eastwood J. P. , Génot V. , Goetz K. , Griton L. S. , Halekas J. S , Harvey P. , Kieokaew R. , Klein K. G. , Korreck K. E. , Kouloumvakos A. , Larson D. E. , Lavarra M. , Livi R. , Louarn P. , MacDowall R. J. , Maksimovic M. , Malaspina D. , Nieves-Chinchilla T. , Pinto R. F. , Poirier N. , Pulupa M. , Raouafi N. E. , Stevens M. L. , Toledo-Redondo S. , Whittlesey P. L.
Published: May 2020

We present heliospheric current sheet (HCS) and plasma sheet (HPS) observations during Parker Solar Probe’s (PSP) first orbit around the Sun. We focus on the eight intervals that display a true sector boundary (TSB; based on suprathermal electron pitch angle distributions) with one or several associated current sheets. The analysis shows that (1) the main density enhancements in the vicinity of the TSB and HCS are typically associated with electron strahl dropouts, implying magnetic disconnection from the Sun, (2) the density enhancements are just about twice that in the surrounding regions, suggesting mixing of plasmas from each side of the HCS, (3) the velocity changes at the main boundaries are either correlated or anticorrelated with magnetic field changes, consistent with magnetic reconnection, (4) there often exists a layer of disconnected magnetic field just outside the high-density regions, in agreement with a reconnected topology, (5) while a few cases consist of short-lived density and velocity changes, compatible with short-duration reconnection exhausts, most events are much longer and show the presence of flux ropes interleaved with higher-β regions. These findings are consistent with the transient release of density blobs and flux ropes through sequential magnetic reconnection at the tip of the helmet streamer. The data also demonstrate that, at least during PSP’s first orbit, the only structure that may be defined as the HPS is the density structure that results from magnetic reconnection, and its byproducts, likely released near the tip of the helmet streamer.
The Persistent Radio Jet Coupled to Hard X-Rays in the Soft State of Cyg X-1
Authors: Zdziarski Andrzej A. , Shapopi J. N. S. , Pooley Guy G.
Published: May 2020

We study long-term radio/X-ray correlations in Cyg X-1. We find the persistent existence of a compact radio jet in its soft state. This represents a new phenomenon in black hole binaries, in addition to compact jets in the hard state and episodic ejections of ballistic blobs in the intermediate state. While the radio emission in the hard state is strongly correlated with both the soft and hard X-rays, the radio flux in the soft state is not directly correlated with the flux of the dominant disk blackbody in soft X-rays, but instead it is lagged by about 100 days. We interpret the lag as occurring in the process of advection of the magnetic flux from the donor through the accretion disk. On the other hand, the soft-state radio flux is very tightly correlated with the hard X-ray, 15–50 keV, flux without a measurable lag and at the same rms. This implies that the X-ray-emitting disk corona and the soft-state jet are powered by the same process, probably magnetically.
Simulations Show that Vortex Flows Could Heat the Chromosphere in Solar Plage
Authors: Yadav Nitin , Cameron R. H. , Solanki S. K.
Published: May 2020

The relationship between vortex flows at different spatial scales and their contribution to the energy balance in the chromosphere is not yet fully understood. We perform three-dimensional (3D) radiation-magnetohydrodynamic simulations of a unipolar solar plage region at a spatial resolution of 10 km using the MURaM code. We use the swirling-strength criterion that mainly detects the smallest vortices present in the simulation data. We additionally degrade our simulation data to smooth out the smaller vortices, so that also the vortices at larger spatial scales can be detected. Vortex flows at various spatial scales are found in our simulation data for different effective spatial resolutions. We conclude that the observed large vortices are likely clusters of much smaller ones that are not yet resolved by observations. We show that the vertical Poynting flux decreases rapidly with reduced effective spatial resolutions and is predominantly carried by the horizontal plasma motions rather than vertical flows. Since the small-scale horizontal motions or the smaller vortices carry most of the energy, the energy transported by vortices deduced from low-resolution data is grossly underestimated. In full-resolution simulation data, the Poynting flux contribution due to vortices is more than adequate to compensate for the radiative losses in plage, indicating their importance for chromospheric heating.
Segmental Versus Circumferential Ablation of Pulmonary Veins in Patients with Paroxysmal Atrial Fibrillation
Authors: Moustafa Wedn Ahmed , Eldamaty Ahmed , Elhalag Moataz , Elsherif Rania , Alaasr Hesham
Published: May 2020

INTRODUCTION: Pulmonary vein isolation (PVI) is the cornerstone of catheter ablation techniques for the treatment of paroxysmal atrial fibrillation (PAF), with significantly improved efficacy compared to antiarrhythmic drugs as shown in CABANA trial. However, the question arises in which PAF patients whether the procedure can be limited to PVs only showing potentials (segmental), or it is really necessary to isolate all PV (circumferential). Even though success rates for circumferential PV ablation (CPVA) have been reported to be higher (up to 90%), than segmental PV ablation, most CPVA procedures previously reported included left atrial linear ablation, additional ablation lesions or lines connecting the mitral valve to the posterior PVs or along the roof of the left atrium which made bias to these studies.
AIM: Thus, we initiated this randomized controlled study to evaluate the efficacy of CPVA versus SPVI in subjects undergoing ablation of PAF.
METHODS: Our study included 31 consecutive patients who underwent their first radiofrequency ablation for PAF between March 2015 and March 2017. Patients were randomized for circumferential or segmental ablation on the day of the procedure. We had two groups, circumferential (17 patients) and segmental group (14 patients).
RESULTS: There was no difference between two groups on our primary endpoint, the recurrence, which was 2 out of 14 patients (14.3%) in the segmental ablation group, compared to 3 out of 17 patients (17.6%) who were circumferential ablated. This difference is statistically insignificant (p = 1). For other endpoints, there was also no statistically significant difference between circumferential and segmental regarding fluoroscopy time, 53.47 ± 8.7 min versus 54.93 ± 15.02 min, p = 0.738, procedure time, 184.18 ±19.28 min versus 191.43 ± 20 min p = 0.315, and even for radio frequency time which was lower in segmental group but did not differ statistically, 35.71 ± 5.73 min versus 34.79 ± 5.29, min p = 0.649.
CONCLUSION: The previous studies showed the superiority of circumferential PVI on segmental strategy regarding effectiveness, but in those studies, linear ablations were added to circumferential strategy and done in cases of persistent and PAF. In our randomized study, we compared between two methods in cases of PAF, which showed that segmental ablation is not inferior to circumferential ablation of PVI.
Gymnosiphon syceorosensis (Burmanniaceae), the second new species for the Philippines
Authors: Nickrent Daniel L.
Published: May 2020

A new holomycoheterotrophic member of Burmanniaceae, Gymnosiphon syceorosensis, is described from Mt. Hamiguitan located on the island of Mindanao, Philippines. This species differs from the recently named G. philippinensis from Cebu in a number of quantitative and qualitative characters. Phenetic (neighbor-joining) and phylogenetic (maximum parsimony) analyses of characters from Asian and Australian Gymnosiphon species were conducted and diagnostic taxonomic features were discussed. This new species appears to be most closely related to G. affinis J.J. Sm. from New Guinea but differs in a number of floral features including inner perianth lobe shape, stamen position in floral tube, and anther connective shape.
Lectotypification of the name Melastoma candidum f. albiflorum and its taxonomic status
Authors: Zhang Xinjian , Dai Jin-Hong , Liu Xiaozhou , Li Zihua , Lee Shiou Yih , Zhou Renchao , Tan Guangwen
Published: May 2020

A nomenclatural and taxonomic treatment of the name Melastoma candidum f. albiflorum (Melastomataceae) is presented. A lectotype is designated for this name, with an updated morphological description based on fresh material. The name Melastoma candidum f. albiflorum is proposed as a heterotypic synonym of Melastoma candidum.
A new species of Rhododendron (Ericaceae) from Guizhou, China
Authors: Dai Xiao-Yong , Yang Cheng-Hua , Yang Bing , Chen Pu , Ma Yong-Peng
Published: May 2020

A new species of the Rhododendron (Ericaceae) in subgen. Tsutsusi sect. Tsutsusi from Puding county of Guizhou, China, is described and illustrated. The new species, R. pudingense X.Y. Dai, C.H. Yang & Y.P. Ma, is similar to R. myrsinifolium Ching ex Fang et M. Y. He and R. minutiflorum Hu, but it can be easily distinguished by its length and being pubescent on inner surface of corolla tube, sparse hairs below the middle of filament and the glabrous style.
Politiques du doute et régimes de vérité à l’« ère de l’os ». ADN et adoptions symboliques des corps récupérés dans les charniers au Pérou et en Espagne
Authors: Delacroix Dorothée , Noûs Camille
Published: May 2020

Prenant pour objet l’ouverture des charniers de la guerre civile au Pérou et du franquisme en Espagne, cet article interroge le triple enjeu associé à la récupération des restes humains qui sont à la fois objet de revendications politiques, pivot d’une économie affective et pièce d’une économie probatoire. Le travail de terrain réalisé dans les Andes péruviennes et en Navarre montre qu’au-delà de l’objectif de restituer une dignité aux morts et à leurs proches, les exhumations contemporaines contribuent aussi à remettre en question l’identité des corps récupérés, parfois de façon informelle, vingt à quarante ans plus tôt. Des lieux de souvenir, entretenus depuis plusieurs décennies par les familles qui imaginaient détenir là le corps de leur proche, sont ainsi ouverts et « vérifiés » grâce aux nouvelles technologies qui s’appuient notamment sur l’analyse ADN. L’article examine les impacts de cette épreuve de vérité sur la relation intime au parent disparu, sur les positionnements politiques que défendent différents collectifs et différentes personnes, et sur leur rapport même à la citoyenneté dans cette nouvelle configuration bio-scientifique.
Sur les traces des disparus au Mexique
Authors: Melenotte Sabrina
Published: May 2020

Le Mexique connaît depuis douze ans des violences extrêmes et massives modifiant en profondeur le traitement politique, culturel et social des disparus et des morts en masse. Devenue récemment une priorité dans l’agenda politique, la disparition, forcée ou non, reste une énigme pour les vivants hantés par l’incertitude et les fantômes. Face à l’inaction de l’État, les familles des victimes font « justice par elles-mêmes » et conjurent cette malemort par deux principales actions : « lire la terre » pour en faire émerger des fosses clandestines et « lire le cadavre » pour rendre une identité à ces morts qui dérangent. À partir d’une description ethnographique d’un dimanche de recherche de fosses clandestines menées en 2016 avec des familles du collectif « Les autres disparus » à Iguala, dans l’État du Guerrero, cet article démontre à quel point suivre les traces des disparus signifie davantage que mener de simples fouilles : les recherches de fosses clandestines concentrent l’opération de restauration d’un ordre matériel et symbolique face au puzzle macabre laissé par les violences politiques et criminelles. Elles constituent de nouveaux rituels modernes et réintroduisent du sens et du sacré là où les traces des crimes sont camouflées.
Les origines du concept de Trinité
Authors: Morlet Sébastien
Published: May 2020

Le problème classique des « origines » du concept de Trinité conduit traditionnellement ou bien à des approches confessionnelles qui supposent l’existence de ce concept déjà dans le texte biblique, ou bien, au contraire, à la recherche d’influences extérieures à la tradition juive ou chrétienne, dans les « triades » polythéistes. En réalité, les premiers textes chrétiens dans lesquels s’élabore réellement la doctrine trinitaire – ceux des « apologistes » du ii e  siècle – montrent que 1) la source essentielle est philosophique : les premiers développements de théologie trinitaire s’inscrivent dans une tradition médioplatonicienne de lecture de la « Lettre 2 » attribuée à Platon, et les affirmations de l’Écriture sont relues à la lumière de la triade platonicienne ; 2) l’idée de Trinité n’est pas apparue dans la tradition patristique comme un « mystère », mais au contraire comme une doctrine parfaitement rationnelle, et supposée même démontrer, parmi d’autres arguments, le caractère philosophique des croyances chrétiennes. La « mystérisation » de cette doctrine est un développement ultérieur.
Genèse théologique d’un concept métaphysique : le cas de l’existence. Richard de Saint-Victor
Authors: Bardout Jean-Christophe
Published: May 2020

La philosophie antique et, spécialement, les différentes versions du néoplatonisme ont fourni à la spéculation trinitaire de nombreux instruments théoriques. Parmi eux, le concept d’existence occupe une place éminente, notamment dans le De Trinitate de Richard de Saint-Victor. Après avoir pris acte des difficultés liées à l’emploi du concept de personne, Richard utilise avec une lucidité inégalée les ressources théoriques qu’offre la structure singulière du terme « ex-sistentia », et le mobilise pour penser l’être du Christ, comme ce qui, tout à la fois, provient du Père et subsiste en tant que personne autonome. En Dieu, l’existence s’avère seule en mesure de penser la singularité des personnes sans compromettre leur égalité et l’unité de son essence. C’est donc grâce à la théologie trinitaire que l’existence accède tout d’abord à son propre destin en métaphysique.
Sustainable Urban Development
Authors: Gharehbaghi Koorosh , Trigunarsyah Bambang , Balli Addil
Published: May 2020

Due to Melbourne's ongoing growth, there is continuous pressure on its transportation infrastructure. Further, to maintain its position as one of the most livable cities in the world, Melbourne needs to always look at ways to optimize technology and lifestyle while being conscious of its effects on the environment in order to encourage a sustainable development agenda. Such a stance is part of Melbourne's future sustainable urban development strategy including ‘Melbourne 2017-2050.' As a part of such strategy, this article discusses the possibility of underground urban structures (UUS) to further alleviate Melbourne's continuous urban development problems. Four case studies, Lujiazui, Hongqiao, Montreal, and Helsinki, were studied. These four case studies have some comparability with Melbourne's CBD. Particularly, both Montreal and Helsinki have relevance to Melbourne which is appealing. Predominantly, these two cities' main objective of UUS matches that of Melbourne's long-term urban planning goals. Noticeably, improving the livability along with reducing building operational costs are central to Melbourne's 2017-2050 planning and beyond. According to Melbourne 2017-2050, as a sustainable urban development focus, the city's high livability needs to be maintained together with finding alternative ways to reducing building operational costs. This research would thus serve as a springboard to further investigate the UUS for Melbourne city.
Teachers’ learning at schools: developing pedagogical capacity for curriculum design trhough {co-teaching | cogenerative dialogue}
Authors: El Kadri Michele Salles
Published: May 2020

This article aims at discussing development in an experience of engaging teachers  and students in the design of the curriculum at a public school. It is grounded on a socio-historical perspective of learning and in (coteaching | cogenerative dialogue) as a theorethical-methodological approach. Data was gathered in a two-year project through interactions meetings at schools and analyzed through critical discourse analysis (transitivity) and conversational analysis. The results of the study point out that having had the opportunity to interact in co-plannings and redesigning the curriculum, new attitudes emerged. Furthermore, participating in more democratic spaces and being able to redesign their own curricula during teaching practicum had effects on how the participants perceive the participation of high school students. It is concluded that developing teachers' pedagogical capacity for curriculum design may influence the degree to which teachers engage in a principled, reform-oriented analysis when creating learning opportunities for students.
Desenhando novas realidades didáticas com o poder motivacional dos aplicativos digitais no ensino da História
Authors: Pestana Miguel , Dias-Trindade Sara , Moreira José António
Published: May 2020

No mundo atual, os estudantes necessitam possuir um conjunto de competências diferentes e transversais, que lhes permitam coabitar nesta nova ordem social, cultural, económica e política. Perante este contexto, torna-se cada vez mais importante articular os curricula escolares com a utilização de tecnologias digitais, como forma de promover estas competências, tal como tem vindo a ser enunciado por entidades internacionais, que defendem a necessidade de criar novos cenários de aprendizagem. É um desses novos cenários, enriquecido com diferentes aplicativos digitais - Kahoot, Mentimeter, Plickers e EdPuzzle- que pretendemos analisar, descrevendo o seu impacto no autoconceito académico de estudantes do Ensino Fundamental, a partir da análise qualitativa das suas percepções. Os resultados mostram que este cenário, ancorado num modelo centrado na aprendizagem e no desenvolvimento de competências, podem ter efeitos muito positivos no autoconceito académico dos alunos, a nível das diferentes dimensões consideradas: motivação, orientação para a tarefa, confiança nas suas capacidades e relação com os colegas.
Occurrence of respiratory symptoms in elderly persons heard by the family health strategy in Águas Lindas, Ananindeua, Pará State
Authors: Teixeira Renato da Costa , Santos Kézia Danniely da Silva , Silva Marinara do Socorro Dias da , Normando Valéria Marques Ferreira , Teixeira Madacilina de Melo
Published: May 2020

Respiratory diseases are among the five leading causes of death in Brazil, particularly among the elderly. This study identified the occurrence of respiratory symptoms in older persons. Specifically, a descriptive, observational, and quantitative study was conducted using a sample of elderly people enrolled in the Hypertension and Diabetes sessions of the Family Health Strategy program in a Brazilian city. MRC-ATS-DLD78 questionnaires were used to analyze respiratory symptoms with a sample comprised of 50 volunteers (mean age = 69.96 years). The median time living in a dwelling within a polluted sample area was 30 years, with 82% reporting spending more time per day at home or in the neighborhood. The presence of coughing was reported by 18% persons, expectoration (17%), productive cough (14%), wheezing (34%), dyspnea (12%), and respiratory diseases (26%). Physiological changes in aging associated with the effects of pollution exposure leave elderly people more vulnerable to respiratory diseases because they are predisposed to diseases, such as decreased pulmonary elasticity, elevated lung compliance, reduced oxygen diffusion capacity, reduced expiratory flow, and premature closure of airways. The occurrence of respiratory symptoms in the elderly was 30% with one symptom, two (22%), three (10%), four (6%), and five (2%).
Factors related to the painful conditions of patients with fibromyalgia in Maringá, Paraná state, Brazil
Authors: Leal Jean Paulo Coelho , Bertoglio Isabela Maria , Esper Lygia Queiroz , Kaneshima Alice Maria de Souza , Becker Tania Cristina Alexandrino , Santana Priscilla de Laet , Kaneshima Edilson Nobuyoshi
Published: May 2020

This study aimed to obtain personal and clinical characteristics of patients with fibromyalgia, and to identify the factors responsible for the initiation, recurrence or intensification of painful state in each patient. The information was collected using General Characterization Form of Fibromyalgia Patients, consisting of 32 questions about personal data, location, and type of pain, identification of factors or circumstances related to the algetic state, physical activity, and pharmacological treatment. Among 14 patients included in this study, 85.71% were female. The pain intensity and time spam varied among patients, and 42.85% of them presented pain (algetic state) lasting between 6 to 10 years. Emotional trauma was the factor or circumstance related to the onset of symptoms of 71.43% of the patients. All patients reported that stressful situations resulting from conflicts in the family, social or work environment are factors responsible for reactivating and intensifying the symptoms of fibromyalgia. Factors and circumstances related to the onset, recurrence, and intensity of fibromyalgia symptoms reveal that it is necessary to inform patients that it is a benign disease, despite the painful condition,since the way they respond to daily events is a determining factor in the course of the disease.Improving physical conditioning and conducting cognitive-behavioral therapy, along with pharmacological treatments, can be successful in treating or minimizing the symptoms of fibromyalgia.
Influence of Sieving Polymer Concentration and Applied Voltage on Separation Accuracy of the Capillary Gel Electrophoresis for Small DNA Fragments
Authors: Nakazumi Tomoka , Hara Yusuke
Published: May 2020

In this study, measurement conditions of Capillary gel electrophoresis (CGE) were optimized in order to increase the separation accuracy for small DNA fragments. We adopted a 20-bp DNA Ladder including 13 small double-stranded fragments (20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 300, 400, and 500-bp). The applied voltage and sieving polymer concentration were assessed because these two factors significantly affect the separation accuracy of DNA fragments. As a result, we succeeded in optimizing CGE separation conditions for small DNA fragments with a sufficient degree of accuracy.
Encapsulation of Turmeric Crude Extracted in Chitosan Hydrogel Beads for Antimicrobial in Animal Health Care Applications
Authors: Seeyangnok Samitthichai , Sae-Khow Parisa , Pranee Siriporn , Wootitunthipong Kanyavee
Published: May 2020

Hydrogel is very popular used in medicinal materials due to their properties. The aim of study is to investigate the development of chitosan (CS) hydrogel beads to extend drug-releasing time and enhance the stability of hydrogel beads from decomposition due to surrounding temperature. Gentamicin (GM) is using as a drug model for loading and releasing from hydrogel beads. For this purpose, the effects of ionic gelation of CS and tripolyphosphate (TPP) on various concentrations (1, 3, 5, and 7%w/v) are emphasized. Scanning electron microscopy (SEM) has revealed that CS hydrogel beads are roughly surface with decreasing of the %CS content. The Fourier transform infrared (FT-IR) spectra show a weak band of hydroxyl stretching at 2878 cm-1 of chitosan, the absorption band of the carbonyl stretching of the secondary amide at 1651 cm-1. The releasing solution of CS hydrogel beads exhibit an antimicrobial activity against 4 type of bacterias compared to Chloramphenical. For this reason, indicating that CS hydrogel beads are an appropriate for controlled drug release system to turmeric crude extract.
Influence of Different Preparation Methods of Silver-Modified Carbon Nitride on the Photocatalytic Activity towards Indigo Carmine Dye
Authors: Svoboda Ladislav , Dvorsky Richard , Bednář Jiří , Matýsek Dalibor , Pomiklová Marketa
Published: May 2020

Silver nanoparticles (Ag NPs) may increase photocatalytic activity of widely used photocatalysts under visible light irradiation and decrease recombination probability of photogenerated electrons and holes. In this paper, we report three different preparation methods to obtain Ag/C3N4 nanocomposites. We used Ag nanoparticles a) synthesized by using sodium borohydride, b) synthesized by using UV 365 nm LED and c) already prepared and purchased from company nanoIron. The Ag NPs have been loaded on thermally exfoliated carbon nitride with the aim to form 5 wt.% Ag/C3N4 nanocomposites. Further their photocatalytic activity was tested towards Indigo carmine dye (IC) under 416 nm LED. The results show that method a) loaded different amount and size of Ag NPs on the surface of C3N4, b) changed optoelectronic behaviors of nanocomposites and c) significantly influenced their photocatalytic activity.
Synthesis of Nanoporous Material from Lignin via Carbonization Assisted Acid Activation
Authors: Ngamthanacom Nutchaporn , Kaewtrakulchai Napat , Chaiwat Weerawut , Chuenchom Laemthong , Fuji Masayoshi , Eiad-Ua Apiluck
Published: May 2020

Waste lignin (WL) from the pulp mill and paper was studied for its potential application to prepare the nanoporous carbon with high porosity via carbonization assisted acid activation. The effect of acid activation such as HNO3, HCl, H2SO4, and H3PO4 on lignin transformation to nanoporous carbon investigated. The physicochemical properties of nanoporous carbon were comprehensively characterized through N2 sorption, Scanning electron microscope (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR), respectively. N2 sorption revealed that the condition using 5% vol of phosphoric acid activation at carbonization temperature of 700°C for 2 h exhibited the highly porous structure of carbon nanoparticles with a total pore volume of 0.035 cm3/g. With the properly selecting process variables of waste lignin development could be producing high porosity nanoporous carbon.
Characterizing Interfacial Thermal Conductivity in Graphene Nanocomposites
Authors: Tseng Po Ying , Ke Wen Jie , Tsai Jia Lin
Published: May 2020

This study investigated the functionalization and layer number effects on interfacial thermal conductivity (ITC) of graphene nanocomposites through molecular dynamics simulation. The functional groups grafted to the graphene surface were carboxyl and amine groups. The ITC between the graphene and the surrounding epoxy matrix was examined, and the effects of the functional groups and layer number on ITC were characterized through vibrational density of states (VDOS). It was revealed that the VDOS mismatch between the epoxy and the outermost layer of graphene was reduced by the functional groups. Thus, the functional groups can effectively improve the ITC between the graphene and epoxy matrix. Moreover, when the layer number of graphene increases, the ITC in nanocomposites increases correspondingly. This is attributed to the fact that the inner layers of graphene may interact with the epoxy matrix and contribute the interatomistic energy in the interface.
Hydrophilic/Hydrophobic Property Changes on Polyacrylonitrile/Cellulose Acetate Nanofiber Membrane
Authors: Kusumaatmaja Ahmad , Nur Wahyuna , Chotimah Chotimah , Triyana Kuwat
Published: May 2020

Nanofibers membrane are potential material for water filtration, and surface properties of the membrane are an important factor to avoid fouling on the membrane surface. The combination of filter material is known to influence the membrane surface properties. We investigated the mixture of polyacrylonitrile (PAN) and cellulose acetate (CA) on the nanofiber membrane by electrospinning. This blend was dissolved in dimethylformamide as feed polymer in electrospinning technique. We prepared the ratio of PAN to CA were 0:10, 4:6, 5:5, 6:4, and 10:0 in 8 wt%. All the membranes formed fiber, except 0:10 which only created a thin layer from the sprays. Contact angle measurements related to membrane surface properties were measured and resulted in 128o, 126o, and 125o for 4:6, 5:5 dan 6:4 membranes, respectively. This results indicated that all PAN/CA membranes had hydrophobic properties. The hydrophobic property was also observed by Fourier transform infrared (FTIR) spectroscopy, a sharp peak of-CH3 appeared. It is interesting while mixing two hydrophilic polymers we obtain a hydrophobic membrane.
Deformation and Fracture Mechanics of Superior Nanocomposites
Authors: Anggraini Lydia
Published: May 2020

Lightweight ultra-fine grained (<1 μm size) SiC-ZrO2(3Y2O3) composites, with a combination of high hardness, high bending strength and high fracture toughness, were successfully prepared by high energy mechanical milling followed by heat treatment. The SiC-ZrO2(3Y2O3) composites exhibitied high hardness (1707 MPa), high bending strengh (as high as 1689 MPa) and high fracture toughness (up to approximately 12.6 MPa.m1/2). Such a combination of mechanical properties was attributed to the fine microstructure with a distinct feature consisting of almost continuous network of ZrO2(3Y2O3) phase around SiC grains, or we call harmonic microstructure. It has been demonstrated that a combination of these unique microstructural characteristics was very effective in supressing the initiation of cracks and governing the path of their subsequent growth during fracture, leading to excellent combination of mechanical properties.
The Effect of Thermal Aging on Mechanical Properties and Morphological Properties of Thermoplastic Vulcanizates Based on Natural Rubber and Polystyrene
Authors: Nu-Yang Prathumrat , Wiriya-Amornchai Atiwat , Yoon Jaehoon , Saechau Chainat , Rattanamusik Poom
Published: May 2020

Thermoplastic vulcanizates or TPVs is a type of materials exhibiting excellent properties between thermoplastic and elastomer by combining the characteristics of vulcanized rubber with the processing properties of thermoplastics. This research aims to study the effect of thermal aging on the morphology and mechanical properties of thermoplastic vulcanizates (TPVs) based on a mixture of natural rubber (NR) and polystyrene (PS). TPVs samples were prepared using the internal mixer at a mass ratio of NR/PS 70/30, 50/50, 30/70 and 0/100. Tensile properties and impact strength showed that when the amount of NR increased tends of impact strength and elongation at break increased but tends of tensile strength decreased. On the other hand, tends of tensile strength for thermal aging at 70°C for 3 days increased when the amount of PS increase. The blending ratio of NR / PS at 70/30 is the best. It gave a worthy increase from 19.94 MPa to be 25.56 MPa (28.18%).
A Preliminary Study on the Effect of Pandanus amaryllifolius Extract as Green Stabilizer to the Growth of Nanostructured ZnO
Authors: Akhir Rabiatuladawiyah Md , Umbaidilah Siti Zulaikha , Abdullah Nurul Afaah , Mahmood Mohamad Rusop , Khusaimi Zuraida
Published: May 2020

Nanostructured zinc oxide (ZnO) were successfully prepared by using phyto assisted solution immersion process. ZnO were grown on a glass substrate coated with ZnO nanoparticle thin-film as seed layer at annealing temperature of 450°C. The fabricated nanostructured ZnO exhibit absorption at ∼375 nm as revealed from the UV-visible absorption spectrum, and it is comparable with ZnO nanostructured synthesized from hexamethylenetetramine (HMTA). X-ray diffraction (XRD) measurement revealed a sharp peak corresponding to the hexagonal wurtzite structure of nanostructured ZnO. Field emission scanning electron microscopy (FESEM) showed average size of ZnO at 24.15 nm slightly smaller compared to synthesized from HMTA; 30.54 nm. It should also be highlighted that the needs of using this alternative green method are due to the advantages of low working temperature and cost-effective, and with the least possible damage to the environment.
Characterization of a Chromium (III) Ion Probe and its MOF-Supported Material
Authors: Guo Ying Ying , Peng Lin Cai , Yi Long , Yao Shun
Published: May 2020

In order to explore more functional supported probe material, the ultraviolet absorbance together with fluorescence properties of a probe with the structure of salicylaldehyde Schiff-base in various solvents and pHs were investigated after its synthesis. When the concentration of Cr3+ ion was in the range of 3~7×10-5 mol•L-1, the complex reaction between the probe and Cr3+ could be used for quantitation of the latter, which was developed by UV absorbance intensity of the complex and the concentration of Cr3+ ion. Ultraviolet analytic results determined that they were complexed in the molar ratio of 1:1. Finally, the MOF-supported probe material was successfully synthesized for further application, which realized the immobilization of the probe through simple operations.
Growth of less than 20 nm SnO Nanowire Using AAO Template for Gas Sensing
Authors: Cheng Bo Ci , Shi Jen Bin , Wu Po Feng , Hsu Po Yao , Lin Hsien Sheng , Lee Hsuan Wei , Ye Chao Kai
Published: May 2020

Large-scale stannous oxide (SnO) nanowires were synthesized via a template and catalyst-free thermal oxidation process. After annealing Sn nanowires embedded AAO template in atmosphere, we observed a large scale of SnO nanowires. SnO nanowires were first prepared via the electrochemical deposition and an oxidization method based on an AAO template. The preparation of SnO nanowires use aluminum sheet (purity 99.999%) and then two-step anodization procedure to obtain raw alumina mold. Finally, transparent alumina mold (AAO template) were obtained by the reaming, soaking with phosphoric acid for 20 minutes and a stripping process. We get a pore size of < 20 nm transparent alumina mold. In order to electroplating needs, we produce platinum film on the bottom surface of AAO template by using sputtering method as the electrode of electroplating deposition. The structure was characterized by X-ray diffraction (XRD). High resolution transmission electron microscopy (HRTEM) and field emission scanning electron microscopy (FESEM) with x-ray energy dispersive spectrometer (EDS) was used to observe the morphology. The EDS spectrum showed that components of the materials are Sn and O. FE-SEM results show the synthesized SnO nanowires to have an approximate length of ~ 10 - 20 μm with a highly aspect ratio > 500. SnO nanowires with an Sn/O atomic ratio of ~ 1 : 1 were observed from EDS. The crystal structure of SnO nanowires showed that all the peaks within the spectra can be indexed to SnO with a tetragonal structure. This studies may lead to the use of the 1D structure nanowires into electronic nanodevices and/or sensors, thus leading to nanobased functional structures.
Review and Prospect of the Influence of Laser Cladding Process Parameters on the Properties of Die Cladding Layer
Authors: Han Bin , Wang Hui , Lin Jia Yi , Liu Xi Hao
Published: May 2020

Laser cladding technology is widely used in the surface modification of parts due to its excellent properties such as high hardness, high wear resistance and corrosion resistance. Extends the life of these parts under normal use conditions, greatly reducing production costs. In this paper, the influence of different parameters such as laser cladding process parameters—laser power and scanning speed, and their interaction on the performance of mold cladding layer is discussed, and the future development direction of laser cladding technology in mold is prospected.
Preparation and Characterization of a New Absorbent Pad from Rice Starch
Authors: Punyanitya Sittiporn , Thiansem Sakdiphon , Koonawoot Rungsarit , Sontichai Watchara , Suchaitanawanit Somchart
Published: May 2020

Thisresearch was aimed to studying absorbent pad of adhesive bandage. The absorbent pad made from rice starch composite. This material used for healingprocessofwounds.One component of adhesive bandage is the part contact wound (absorbent pad) that obtained rice starch-based sponge for hemostatic and mixed with povidone-iodine for antibacteria. In this study, we prepared a new absorbent pad from rice starch by lyophilization and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), water absortion, Fourier transform infrared spectroscopy (FTIR), and disk diffusion method. The rice strach content of this pad is up to 94 wt%. The diameter of the porous pad was found to be in the range of 10-100 mm. Water absorption of this pad was 6 times of dry weight. The addition of povidone iodine showed good antibiotic resistant microorganism of the rice sponge.