bluuebunny/crossref_metadata_2025 huggingface dataset:
Introduction
Authors: Mattéoni Olivier
Published: April 2020

Après avoir replacé le programme Europange au sein des enquêtes de nature prosopographique relatives à l’État médiéval, l’introduction propose des éléments de réflexion sur l’office et sa pratique dans une confrontation avec le discours théorique et normatif. L’apparente contradiction qui existe entre des principes ambitieux et clairement énoncés et une réalité plus pragmatique conduit à poser la question de la culture politique au sein des constructions institutionnelles de la fin du Moyen Âge. Le propos est volontairement comparatif, de sorte à introduire au mieux la réflexion sur les territoires angevins, objet du colloque de Saint-Etienne.
Utilisation et conservation de l’acte écrit d’après le premier « journal » de la Chambre des comptes d’Angers (1397-1424)
Authors: Moreno Justine
Published: April 2020

Le premier « Journal » de la Chambre des comptes d'Angers (1397-1424) reflète, de par sa composition et le statut de ses auteurs, l'impulsion donnée par la pratique de l'écrit à l'organisation de cette institution ducale au tournant du XVe siècle. Entraînant la spécialisation d'une partie de son personnel, la maîtrise rédactionnelle et la conservation des archives princières participent à la création d'une identité propre à ces agents. Le « Journal » témoigne également de la rationalisation administrative du duché. La clarification de ses normes de présentation et la diffusion de normes comptables par les officiers de la Chambre aux agents locaux de finance révèlent un souci d'efficacité et la mise en ordre du contrôle fiscal en Anjou.
La famille de Baudricourt. Itinéraire d’une promotion militaire, politique et administrative
Authors: Landot Aymeric
Published: April 2020

Dès que les Angevins ont pris pied en Lorraine, les Baudricourt, par intérêt personnel, par tradition familiale mais aussi par loyauté politique, se sont mis à leur service, tant d’un point de vue militaire que politique et financier. À mesure que les Angevins se sont rapprochés du pouvoir royal, cette famille, intermédiaire entre Valois et Angevins, s’est enrichie et enracinée, devenant les relais de la faveur et de l’influence royales dans cet espace frontière.
Rappresentazioni del potere angioino nell’Italia comunale: sovrani, ufficiali, città
Authors: Ferrari Matteo , Rao Riccardo , Terenzi Pierluigi
Published: April 2020

Negli ultimi anni gli studi hanno portato alla luce l’influenza politica e istituzionale esercitata dagli Angiò sui comuni dell’Italia centro-settentrionale. L’analisi delle strategie della comunicazione politica messe in atto dai sovrani di Napoli e dai loro rappresentanti attende ancora di essere affrontata. Documenti materiali e testuali testimoniano che, al pari delle istituzioni civili locali, gli angioini utilizzarono abitualmente l’immagine come strumento di «propaganda» nelle città sottoposte al loro dominio o alla loro influenza. I ritratti dei re di Napoli (a Firenze, Piacenza, Roma, etc.), le immagini delle loro imprese (a San Gimignano e, forse, a Firenze) e, soprattutto, i loro stemmi – spesso inglobati nella panoplia araldica comunale – erano dipinti o scolpiti in diversi punti della città, e specialmente nei palazzi pubblici, ma anche riprodotti su supporti effimeri in occasione di cerimonie solenni. Grazie a loro si voleva rappresentare il potere del monarca nello spazio urbano, affermarne le prerogative, descriverne le ricadute positive per la collettività. Da parte loro, i consigli e i funzionari cittadini si appropriarono dell’immagine, soprattutto araldica, dei sovrani angioini per dichiarare la loro appartenenza politica, e questo anche in anni successivi alla conclusione formale della dominazione o in luoghi che non la sperimentarono mai. Attraverso l’analisi delle rappresentazioni conservate o descritte dalle fonti indirette, si proverà allora a fornire una prima ricostruzione dei temi e delle funzioni dell’iconografia politica angioina nell’Italia centro-settentrionale tra il XIII e il XV secolo, cercando di identificare gli obiettivi di una committenza mutevole ed eterogenea.
Genetic Algorithm-Influenced Top-N Recommender System to Alleviate the New User Cold Start Problem
Authors: J. Sharon Moses , L. D. Dhinesh Babu , Srinivasan Santhoshkumar , M. Nirmala
Published: April 2020

Most recommender systems are based on the familiar collaborative filtering algorithm to suggest items. Quite often, collaborative filtering algorithm fails in generating recommendations due to the lack of adequate user information resulting in new user cold start problem. Cold start problem is one of the prevailing issues in recommendation system where the system fails to render recommendation. To overcome the new user cold start issue, demographical information of the user is utilised as the user information source. Among the demographical information, the impact of user gender is less explored when compared with other information like age, profession, region, etc. In this chapter, genetic algorithm influenced gender-based top-n recommender algorithm is proposed to address the new user cold start problem. The algorithm utilises the evolution concepts of genetic algorithm to render top-n recommendations to a new user. The evaluation of the proposed algorithm using real world datasets proved that the algorithm has a better efficiency than the state-of-art approaches.
An Analysis of Fireworks Algorithm Solving Problems With Shifts in the Decision Space and Objective Space
Authors: Cheng Shi , Chen Junfeng , Qin Quande , Shi Yuhui
Published: April 2020

Fireworks algorithms for solving problems with the optima shifts in the decision space and/or objective space are analyzed. The standard benchmark problems have several weaknesses in the research of swarm intelligence algorithms for solving single-objective problems. The optimum shift in decision space and/or objective space will increase the difficulty of problem-solving. Modular arithmetic mapping is utilized in the original fireworks algorithm to handle solutions out of the search range. The solutions are implicitly guided to the center of search range for problems with symmetrical search range via this strategy. The optimization performance of the fireworks algorithm on shift functions may be affected by this strategy. Four kinds of mapping strategies are compared with different problems. The fireworks algorithms with mapping to the boundary or mapping to a limited stochastic region obtain good performance on problems with the optimum shift.
A Study of Normalized Population Diversity in Particle Swarm Optimization
Authors: Cheng Shi , Shi Yuhui , Qin Quande
Published: April 2020

The values and velocities of a Particle swarm optimization (PSO) algorithm can be recorded as a series of matrix and its population diversity can be considered as an observation of the distribution of matrix elements. Each dimension is measured separately in the dimension-wise diversity. On the contrary, the element-wise diversity measures all dimensions together. In this chapter, the PSO algorithm is first represented in the matrix format. Then, based on the analysis of the relationship between pairs of vectors in the PSO solution matrix, different normalization strategies are utilized for dimension-wise and element-wise population diversity, respectively. Experiments on benchmark functions are conducted. Based on the simulation results of 10 benchmark functions (including unimodal/multimodal function, separable/non-separable function), the properties of normalized population diversities are analyzed and discussed.
A IMPORTÂNCIA DO USO DE MATERIAL DIDÁTICO COMO PRÁTICA PEDAGÓGICA
Authors: Rando Ana Luiza Balani
Published: April 2020

O Reino Fungi é marcado por características peculiares, incluindo seus aspectos morfológicos e fisiológicos e está dividido em filos que são conhecidos como: Ascomycota, Basidiomycota, Glomeromycota, Zygomycota e Chytridiomycota. Os primeiros fungos à conquistarem o ambiente terrestre os Zygomyota, são conhecidos por causar infecções e bolores em alimentos. O Filo Basidiomycota apresentam os fungos mais conhecidos, chamados popularmente de cogumelos. No âmbito escolar uma das finalidades que o ensino adquiriu, é capacitar os estudantes para que consigam ter autonomia e flexibilidade em aprender e o material didático, é o meio que proporciona ao estudante uma compreensão mais clara e abrangente sobre determinados assuntos. Assim, objetivo do trabalho foi produzir dois materiais didáticos abordando de forma específica o grupo dos Zygomycota e Basidiomycota. Os materiais utilizados foram de fácil acesso e baixo custo econômico. Como resultado obteve-se o modelo didático que contém uma parte macro representando o bolor e  uma parte micro com as estruturas específicas do fungo que não são visíveis sem auxílio de um microscópio (Zygomycota). Já o segundo trabalho didático elaborado foi uma apresentação tridimensional de um cogumelo (Filo Basidiomycota), representando o píleo, com basidiósporos e a haste. A confecção dos materiais didáticos apresentaram algumas vantagens como fácil e rápida elaboração, pouco gasto econômico, além da vantagem cognitiva, pois, desenvolveu a imaginação, coordenação e criatividade dos alunos, que estavam ainda estudando o conteúdo da disciplina de Micologia e isso fez com que eles pesquisassem mais sobre o tema, não ficando preso somente ao que foi passado em aula.
SÍNDROME DE BURNOUT NA EQUIPE DE ENFERMAGEM: DESAFIOS E PERSPECTIVAS: UMA REVISÃO DE LITERATURA
Authors: Simões Julio
Published: April 2020

A pesquisa decorreu através de uma revisão crítica de literatura bibliográfica com análise e discussão. O período correspondente a essa busca restringiu-se aos últimos quinze anos, dando-se preferência aos idiomas português e inglês. Este estudo nos mostram que os empregados profissionais da área da saúde, são mais suscetíveis a cerca de agentes estressores consequentemente como jornadas de trabalhos em excesso. A síndrome de Burnout e a habilidade de trabalho ruins têm a se propagar com mais predisposição nestes profissionais, dentre eles os enfermeiro, auxiliares e técnicos de enfermagem. Uma equipe que trabalha por intermédio de condutas interdisciplinares pode perceber, quando um trabalhador, antes, envolvido afetivamente com seus clientes, o com seu trabalho em si, desgasta-se e, em determinado momento, perde a energia, ou se “queima” completamente. Refere-se de profissional que se desinteressa de qualquer particularidade de suas tarefas. A ocorrência de Síndrome de Burnout e a má qualidade no trabalho na população é bastante alta, provavelmente em função aos horários de trabalho dia e noite, do mesmo modo que com o excesso das jornadas até de três turnos para uma diligencia de salários com maior grau de satisfação. É importante que a enfermagem do trabalho possa realizar orientações dos vícios que limitam o estresse no trabalho pois é uma saída para finalidade de atenuar os impactos colaterais na vida pessoal e profissional. Sendo assim, o objetivo do presente trabalho foi realizar uma revisão bibliográfica em identificar a condições de trabalho e que o enfermeiro do trabalho possa propiciar a equipe de enfermagem um ambiente menos estressantes para desenvolverem suas atividades laborativas, correlacionando-os com a Síndrome de Burnout, verificando se a Qualidade de Trabalho interfere na Síndrome de Burnout.
CONTRIBUIÇÕES DA MONITORIA ACADÊMICA DE ANATOMIA HUMANA AOS ESTUDANTES, PROFESSORES E MONITORES
Authors: Gabrielle Maria de Souza  , Érika Gomes Carvalho  , Fabiano Campos Lima  , Dayane Kelly Sabec Pereira  , Kleber Fernando Pereira
Published: April 2020

A monitoria acadêmica constitui-se uma proposta de auxílio a professores no processo de ensino-aprendizagem, além de oferecer a oportunidade aos alunos de esclarecerem dúvidas e superarem dificuldades. O presente estudo visa verificar a influência da monitoria acadêmica de Anatomia Humana no desempenho de estudantes, conhecendo a percepção de professores e monitores quanto à prática desta atividade. Este estudo tem uma abordagem quantitativa e qualitativa, sendo que a população constituiu-se de 169 discentes, 21 monitores de anatomia humana e 7 professores orientadores. O instrumento de pesquisa utilizado foram três questionários, sendo cada um específico para a classe universitária avaliada, devidamente aprovados no Comitê de Ética em Pesquisa com o protocolo 1.772.302. Evidencia-se que a monitoria de anatomia humana contribui de forma positiva para a melhoria do desempenho dos discentes e para o processo de ensino aprendizagem como um todo. A falta de disponibilidade do monitor constitui-se um ponto negativo no estudo por não ser suficiente o tempo dedicado a monitoria, segundo os entrevistados. O maior motivo dos alunos para serem monitores foi o desejo de estar sempre aprendendo e fixando o conteúdo, entretanto, a maioria dos professores afirmou que seria pela afinidade com a carreira da docência. Depreende-se que a monitoria de anatomia humana contribui de forma positiva para o desempenho acadêmico dos monitores e dos alunos com melhores notas, maiores iniciativas em pesquisa/extensão, além do auxílio aos professores-orientadores.
A descrição de balarm (Palermo, Sicília) em Kitab Ghara’ib al-funun wa mulah al-‘uyun (c. 1020), de autor anônimo
Authors: Bonnici Thomas
Published: April 2020

Esse estudo consiste numa tradução preliminar em Português do capítulo 12 do Kitab Ghara’ib al-fanun wa mulah al-‘uyun (Livro de curiosidades), sobre a Sicília e Palermo, exclusivamente durante o período islâmico. Todos os termos, lugares e locais de Balarm (Palermo) e Sicília mencionados no texto são explicados. Eles proporcionam ao leitor uma nova versão sobre a cidade nos primeiros anos do século 11, um pouco diferente daquela anteriormente dada por Ibn Hawqal no final do século 10. Palavras-chave: Kitab Ghara’ib; Balarm (Palermo); Sicília; século 11; ilha islâmica.
Luta estratégica para obter lealdades: discurso e políticas em direção a huaqiao华侨 através de relatórios de conferência na China (1951-1953)
Authors: Arana David Ibarra
Published: April 2020

No contexto da Guerra Fria, são analisados os relatórios das conferências relacionadas aos Huaqiao, ou chineses estrangeiros, entre 1951 e 1953. Esse foi um período inicial de políticas divididas entre as comunidades chinesas no exterior, entre o governo da República Popular da China e Guomindang, em Taiwan. Mais do que apoiar as populações chinesas no exterior, enfrentando dinâmicas de exclusão e discriminação nos países em que residiam, esses governos chineses encontraram nos compatriotas estrangeiros um cenário de luta por lealdade através de discursos e estratégias políticas.
Migração hondurenha para os EUA: de escassa para mais compulsiva (1930-2019)
Authors: Recinos Vladimir López
Published: April 2020

Este artigo, de uma perspectiva histórica, analisa a relação imigração e emigração para explicar o caso dos movimentos migratórios de Honduras para os Estados Unidos da América (EUA). Com a análise de figuras, testemunhos e informações históricas coletadas e sistematizadas, o ambiente das primeiras práticas migratórias é reconstruído para localizar o ponto de ruptura e / ou transformação de uma migração escassa para uma mais compulsiva, atualmente em desenvolvimento em um contexto de anarquia migratória.
The psoriatic shift induced by interleukin 17 is promptly reverted by a specific anti-IL-17A agent in a three-dimensional organotypic model of normal human skin culture
Authors: Donetti Elena , Lombardo Giulia , Indino Serena , Cornaghi Laura , Arnaboldi Francesca , Pescitelli Leonardo , Baruffaldi Preis Franz , Prignano Francesca
Published: April 2020

Interleukin 17A (IL-17A), mainly produced by the T helper subclass Th17, plays a key role in the psoriatic plaque formation and progression. The clinical effectiveness of anti-IL-17A agents is documented, but the early and specific mechanisms of their protection are not identified yet. The challenge of the present study is to investigate the possible reversal exerted by a specific anti-IL-17A agent on the psoriatic events induced by IL-17A in a three-dimensional organotypic model of normal human skin. Bioptic skin fragments obtained after aesthetic surgery of healthy women (n=5) were incubated with i) IL-17A biological inhibitor (anti-IL-17A), ii) IL-17A, iii) a combination of IL-17A and its specific IL-17A biological inhibitor (COMBO). A Control group was in parallel cultured and incubation lasted for 24 and 48 h epidermal-side-up at the air-liquid interface. All subjects were represented in all experimental groups at all considered time-points. Keratinocyte proliferation and the presence of epidermal Langerhans cells were quantitatively estimated. In parallel with transmission electron microscopy analysis, immunofluorescence studies for the epidermal distribution of keratin (K)10, K14, K16, K17, filaggrin/occludin, Toll-like Receptor 4, and Nuclear Factor kB were performed. IL-17A inhibited cell proliferation and induced K17 expression, while samples incubated with the anti-IL-17A agent were comparable to controls. In the COMBO group the IL-17A-induced effects were almost completely reverted. Our study, for the first time, elucidates the most specific psoriatic cellular events that can be partially affected or completely reverted by a specific anti-IL-17A agent during the early phases of the plaque onset and progression. On the whole, this work contributes to expand the knowledge of the psoriatic tableau.
A remarkable vicariant of Gespanna confirmata (= pectoralis) from Sulawesi (Lepidoptera: Erebidae)
Authors: Zilli Alberto
Published: April 2020

Gespanna amelieae sp. n. from Sulawesi is described. This species is the second member of a hitherto monotypic genus and the first extra-Sundanan one. Despite the close resemblance to G. confirmata (= pectoralis), it can readily be separated from its congener by the different trend of the postmedial line of forewing.
A new species of Fredlanea Martins and Galileo, 1996 from Peruvian Andes (Coleoptera: Cerambycidae, Lamiinae, Hemilophini)
Authors: Juarez-Noé Gino , Gonzalez-Coronado Uzbekia
Published: April 2020

A new species of genus Fredlanea Martins and Galileo, 1996 is described from Peru: Fredlanea wilderi sp. nov., based on a specimen collected from the Cuyas cloud forest in Piura region, important mountain rainforest of Peruvian Andes. The new taxon is closely related to Fredlanea guaranitica (Lane, 1966) but can be distinguished by presence of yellowish pubescence on proepisterna, mesepimera and metepisterna, and absence of longitudinal strip of yellow pubescence on epipleural margins. A key to Peruvian species of Fredlanea Martins and Galileo, 1996 is provided.
Hoverfly diversity in Mareschi alluvial alder forest (Piedmont, Italy), and “Syrph the Net” ecological analysis (Diptera: Syrphidae)
Authors: Maritano Umberto , Sommaggio Daniele
Published: April 2020

This paper presents the results of the one-year field research into the hoverfly (Diptera: Syrphidae) in Mareschi, in Sant’Antonino di Susa municipality. The sampling activities were performed with Malaise trap, emerging trap, and entomological net. Monitoring was carried out from March to October 2018 in the over-mature alder forest, classified under the Natura 2000 Habitat code 91E0, considered as a priority in EU 92/43 Habitats Directive. Preliminary data from July to October 2017 are also included. Overall, 74 species were recorded, with the first records of 7 species for Piedmont. Some of the observed species in Mareschi are of primary conservation importance, such as Arctophila superbiens (Müller, 1776), Sphiximorpha subsessilis (Illiger in Rossi, 1807) and Temnostoma bombylans (Fabricius, 1805). The use of Syrph the Net analysis and the comparison with other woods in Po Plain confirm the high naturalistic value of the studied area.
DYNAMIC MATHEMATICAL MODEL OF URBAN SPATIAL PATTERN (RESIDENTIAL CHOICE OF LOCATION): MOBILITY VS EXTERNALITY
Authors: Fitriani Rahma , Darmanto Darmanto
Published: April 2020

Household’s residential choice of location determines urban spatial pattern (e.g sprawl). The static model which assumes that the choice has been affected by distance to the CBD and location specific externality, fails to capture the evoution of the pattern over time. Therefore this study proposes a dynamic version of the model. It analyses the effects of externalities on the optimal solution of development decision as function of time. It also derives the effect of mobility and externality on the rate of change of development pattern through time. When the increasing rate of utility is not as significant as the increasing rate of income, the externalities will delay the change of urban spatial pattern over time. If the mobility costs increase by large amount relative to the increase of income and inflation rate, then the mobility effect dominates the effects of externalities in delaying the urban expansion.
EFFECT OF THERMAL PRETREATMENT ON THE SOLUBILIZATION OF ORGANIC MATTERS IN A MIXTURE OF PRIMARY AND WASTE ACTIVATED SLUDGE
Authors: Aboulfotoh Ahmed M. , El Monayeri E.H. El Gohary and O.D.
Published: April 2020

The increased demand for advanced techniques in anaerobic digestion over the last few years has led to the employment of various pre-treatment methods prior to anaerobic digestion to increase gas production. These pre-treatment methods alter the physical and chemical properties of sludge in order to make it more readily degradable by anaerobic digestion. Although the thermal pre-treatment presents high energy consumption, the main part of this energy to heat can be recovered from the biogas produced in the anaerobic process. In this research a mixture of primary and waste activated sludge was thermally pretreated at 100, 125, 150, 175 and 200o C in order to determine the effect of thermal pretreatment on improving the solubilization of sludge by increasing the soluble organic fraction (expressed as soluble COD and VFA). Experimental results proved that the solubilization ratio of sludge is depends on the treatment time and the applied temperature and the optimal temperature ranged between 175 and 200o C. The COD solubilization ratio (at 175o C) increased from 11.2% to 15.1% and 25.1% when the time of treatment increased from 60 min to 120 and 240 min respectively. The experimental data could be fitted to obtain an empirical model (Known as the enzyme-kinetic equation) relating the COD solubilization ratio of sludge and VFA concentration to the applied temperature and the heating time.
INVESTIGATING THE EFFECTS OF LOW IMPACT DEVELOPMENT (LID) ON SURFACE RUNOFF AND TSS IN A CALIBRATED HYDRODYNAMIC MODEL
Authors: Gülbaz Sezar , Kazezyilmaz-Alhan Cevza Melek
Published: April 2020

The land development and increase in urbanization in a watershed affect water quantity and water quality. On one hand, urbanization provokes the adjustment of geomorphic structure of the streams, ultimately raises peak flow rate which causes flood; on the other hand, it diminishes water quality which results in an increase in Total Suspended Solid (TSS). Consequently, sediment accumulation in downstream of urban areas is observed which is not preferred for longer life of dams. In order to overcome the sediment accumulation problem in dams, the amount of TSS in streams and in watersheds should be taken under control. Low Impact Development (LID) is a Best Management Practice (BMP) which may be used for this purpose. It is a land planning and engineering design method which is applied in managing storm water runoff in order to reduce flooding as well as simultaneously improve water quality. LID includes techniques to predict suspended solid loads in surface runoff generated over impervious urban surfaces. In this study, the impact of LID-BMPs on surface runoff and TSS is investigated by employing a calibrated hydrodynamic model for Sazlıdere Watershed which is located in Istanbul, Turkey. For this purpose, a calibrated hydrodynamic model was developed by using Environmental Protection Agency Storm Water Management Model (EPA SWMM). For model calibration and validation, we set up a rain gauge and a flow meter into the field and obtain rainfall and flow rate data. And then, we select several LID types such as retention basins, vegetative swales and permeable pavement and we obtain their influence on peak flow rate and pollutant buildup and washoff for TSS. Consequently, we observe the possible effects of LID on surface runoff and TSS in Sazlıdere Watershed.
Functional outcome of right-sided thoracotomy for tuberculosis of the dorsal spine
Authors: Srivastava Sudhir , Marathe Nandan , Bhosale Sunil , Raj Aditya , Dhole Kiran , Agarwal Harsh
Published: April 2020

Introduction: In pathologies of the spine involving dorsal vertebrae, it is a routine practice to go for left-sided thoracotomy. It is so because in this approach, we encounter the aorta before reaching the concerned dorsal vertebra which is easy to handle as compared to the inferior vena cava on the right-sided approach. This is because the aorta is a structure with thick muscular wall. However, there are conditions which demand right-sided thoracotomy for better outcome such as idiopathic scoliosis and dorsal spine tuberculosis (TB). The selection of side of thoracotomy should be done on case-to-case basis. Study Design: This was a prospective study of 10-year duration. Purpose: The purpose of the study was to analyze whether it is more rational to do thoracotomy from the right side than left for dorsal spine TB. Materials and Methods: The study was performed on 102 dorsal Koch patients with neurological deficit who required surgical decompression. Magnetic resonance imaging of those patients was analyzed. Seventy-two patients had predominant right-sided lesion. Left and central types of predominant results were in 19 and 11 patients, respectively. Among these 102 patients, 82 were operated with right-sided thoracotomy, whereas 20 were operated for left-sided thoracotomy. Preoperative and postoperative kyphosis angle (K angle), average surgical time, mean blood loss, and visual analog scale (VAS) score were calculated. The SPSS 17 software was used for the statistical analysis. Results: Right thoracic approach turned out to be better approach than left in dorsal Koch spine. The average surgical time and mean blood loss were less in the right thoracotomy than left. Postoperative K angle and VAS were improved in the right thoracic approach as compared to left. Conclusion: Tubercular debris in the dorsal spine predominantly is on the right side, and right thoracotomy gives better results as there is better decompression of lesion.
Organized chronic subdural hematoma treated with middle meningeal artery embolization and small craniotomy: Two case reports
Authors: Yokoya Shigeomi , Nishii Sho , Takezawa Hidesato , Katsumori Tetsuya , Takagi Yasufumi , Goto Yukihiro , Oka Hideki , Shiomi Naoto , Hino Akihiko
Published: April 2020

The most preferred treatment for organized chronic subdural hematoma (OSDH) remains controversial. Although a large craniotomy has been reported to be necessary and effective for the treatment of an OSDH, a craniotomy is associated with postoperative hemorrhagic complications and recurrence. Although middle meningeal artery (MMA) embolization has been reported to be effective for a refractory chronic subdural hematoma (CSDH), its efficacy for an OSDH remains unclear. We report two cases of OSDH treated with MMA embolization followed by hematoma removal via a small craniotomy under local anesthesia with good progress. Case 1: A 71-year-old man underwent a single burr hole irrigation for a CSDH, which failed due to a solid hematoma. He underwent a small craniotomy under local anesthesia after an MMA embolization. During the craniotomy, a small hemorrhage from the hematoma and its outer membrane was observed. Postoperatively, the symptoms disappeared immediately, and the hematoma did not recur. Case 2: A 77-year-old man underwent a burr hole irrigation, but the hematoma was not evacuated because of an OSDH, and he remained in motor aphasia. After an MMA embolization, a craniotomy was performed under local anesthesia. Intraoperative hemorrhage was minimal, and after the craniotomy, his neurological symptoms improved without any recurrence. MMA embolization and hematoma removal with a small craniotomy could be a treatment option for an OSDH.
How to Teach Grammar to Adult ESP Learners at Technical University More Communicatively: Task-Based Approach
Authors: Lytovchenko I. , Lavrysh Y. , Lukianenko V. , Ogienko O.
Published: April 2020

The article is devoted to comparison of the effectiveness of grammar acquisition by adult learners in two types of instruction – based on the traditional PPP (Presentation, Practice, Production) approach and TBL (Task-Based Learning) approach – in ESP university classes. We conducted a qualitative research in which we tried to incorporate grammar instruction in communicative language teaching and for that purpose selected two groups of students (the PPP group and the TBL group). They were taught five topics, each with a focus on particular grammar items. The comparison of the results we obtained showed that students’ achievement in the TBL group increased more substantially than in the PPP group. Also, the majority of students in the TBL group liked learning grammar at the point of need, which we consider particularly important, since it stimulated their motivation and contributed to the acquisition of grammatical structures. When considering the positive aspects of our experience of using TBL and task-based grammar learning in particular, we should first of all point out its learner-centeredness which provides a number of advantages in teaching adult students: the focus on real communication, addressing the students’ needs by putting them into authentic communicative situations, encouragement of students’ responsibility for their own learning, exposure of students to a wide variety of language, including grammar, ability to motivate students.
Optimal Reconfiguration of a Limited Parallel Robot for Forward Singularities Avoidance
Authors: Llopis-Albert Carlos , Valero Francisco , Mata Vicente , Escarabajal Rafael J. , Zamora-Ortiz Pau , Pulloquinga José L.
Published: April 2020

The positioning of the anchoring points of a Parallel Kinematic Manipulator has an important impact on its later performance. This paper presents an optimization problem to deal with the reconfiguration of a Parallel Kinematic manipulator with four degrees of freedom and the corresponding algorithms to address such problem, with the subsequent test on an actual robot. The cost function minimizes the forces applied by the actuators along the trajectory and considers singular positions and the feasibility of the active generalized coordinates. Results are compared among different algorithms, including evolutionary, heuristics, multi-strategy and gradient-based optimizers.
Ginástica para todos e coletividade: nos meandros da literatura científica
Authors: Menegaldo Fernanda Raffi , Bortoleto Marco Antonio Coelho
Published: April 2020

Esse estudo propõe uma revisão de literatura acerca da coletividade na Ginástica para Todos (GPT). Foi realizado um levantamento em sete bases de dados (SBU, Periódicos Capes, SCOPUS, Scielo, ERIC, SportDiscus e Google Scholar) juntamente a análise de edições especiais da Revista Conexões (FEF-Unicamp) vinculadas ao Fórum Internacional de Ginástica para Todos. O levantamento resultou na seleção e análise de 72 produções, sendo 51 artigos, 4 teses, 9 dissertações e 8 monografias. A maioria das produções apontam a importância do caráter coletivo da GPT, caracterizando-a como uma prática que permite e fomenta a interação social. No entanto, notamos a ausência de aprofundamento teórico e diálogos com referenciais de áreas afins, o que auxiliaria na compreensão da sua potencialidade coletiva. Esse entendimento permitiria um olhar diferenciado para a cooperação, pertencimento e reconhecimento social, elementos importantes para o desenvolvimento das práticas sociomotrizes e, portanto, da prática da GPT.
A Educação Física e a identidade étnico-racial: o estado da arte nas revistas brasileiras de Educação Física
Authors: Monteiro Pamela Tavares , Anjos José Luiz dos
Published: April 2020

O artigo trata do “estado da arte” que objetivou identificar, em quatro revistas que publicam estudos da Educação Física, as produções acadêmicas relacionadas com as questões étnico-raciais. Utiliza as palavras/conceitos: identidade, afro, étnico, cultura e etnia. Foram analisados 17 artigos contendo em sua discussão central elementos étnico-raciais. O recorte temporal decorreu de janeiro de 2013 a janeiro de 2018. Para facilitar o entendimento do conjunto dos trabalhos, eles foram divididos em blocos agrupando temáticas em comum. O processo posterior foi a análise da discussão dos conceitos, buscando a compreensão dos significados no interior de cada artigo elencado. A ordenação em bloco permitiu perceber as características e o tratamento do objeto conceitual, nos mostrando, ainda, uma ausência nas discussões étnico-raciais no que diz respeito ao Esporte e Educação.
University of Kentucky measurements of wind, temperature,
pressure and humidity in support of LAPSE-RATE using multi-site
fixed-wing and rotorcraft UAS
Authors: Bailey Sean C. C. , Sama Michael P. , Canter Caleb A. , Pampolini L. Felipe , Lippay Zachary S. , Schuyler Travis J. , Hamilton Jonathan D. , MacPhee Sean B. , Rowe Isaac S. , Sanders Christopher D. , Smith Virginia G. , Vezzi Christina N. , Wight Harrison M. , Hoagg Jesse B. , Guzman Marcelo I. , Smith Suzanne Weaver
Published: April 2020

Abstract. In July 2018, unmanned aerial systems (UAS) were deployed to measure the properties of lower atmosphere within the San Luis Valley, an elevated valley in Colorado, USA as part of the Lower Atmospheric Profiling Studies at Elevation – a Remotely-piloted Aircraft Team Experiment (LAPSE-RATE). Measurement objectives included detailing boundary-layer transition, canyon cold-air drainage, and convection initiation within the valley. Details of the contribution to LAPSE-RATE made by University of Kentucky are provided here, which include measurements by seven different fixed-wing and rotorcraft UAS totaling over 178 flights with validated data. The data from these coordinated UAS flights consist of thermodynamic and kinematic variables (air temperature, humidity, pressure, wind speed and direction) and include vertical profiles up to 900 m above the ground level and horizontal transects up to 1500 m in length. These measurements have been quality controlled and are openly available in the Zenodo LAPSE-RATE community data repository (https://zenodo.org/communities/lapse-rate/), with the University of Kentucky data available at https://doi.org/10.5281/zenodo.3701845 (Bailey et al., 2020).
CITYZER Observation Network and Data Delivery System
Authors: Schmidt Walter , Harri Ari-Matti , Nousiainen Timo , Hohti Harri , Johansson Lasse , Ojanperä Olli , Viitala Erkki , Niemi Jarkko , Turpeinen Jani , Saukko Erkka , Rönkkö Topi , Lahti Pekka
Published: April 2020

Abstract. CITYZER develops new digital services and products to support decision making processes related to weather and air quality in cities. This includes, e.g., early warnings and forecasts (0–24 h), which allow for avoiding weather-related accidents, mitigate human distress and costs from weather-related damage and bad air quality, and generally improve the resilience and safety of the society. The project takes advantage of the latest scientific know-how and directly exploits the expertise obtained from earlier projects. Central to the project is the Observation Network Manager NM10 developed by Vaisala, on which CITYZER defines and builds new commercial services and connects new sensor networks, e.g. for air quality measurements, as well as the ENFUSER local scale air quality modelling system developed by the Finnish Meteorological Institute, for real-time air quality forecasts and nowcasts.
Parallel I∕O in Flexible Modelling System (FMS) and Modular Ocean Model 5 (MOM5)
Authors: Yang Rui , Ward Marshall , Evans Ben
Published: April 2020

Abstract. We present an implementation of parallel I∕O in the
Modular Ocean Model (MOM), a numerical ocean model used for climate
forecasting, and determine its optimal performance over a range of tuning
parameters. Our implementation uses the parallel API of the netCDF library,
and we investigate the potential bottlenecks associated with the model
configuration, netCDF implementation, the underpinning MPI-IO
library/implementations and Lustre filesystem. We investigate the
performance of a global 0.25∘ resolution model using 240 and 960 CPUs. The best performance is observed when we limit the number of
contiguous I∕O domains on each compute node and assign one MPI rank to
aggregate and to write the data from each node, while ensuring that all nodes
participate in writing this data to our Lustre filesystem. These best-performance configurations are then applied to a higher 0.1∘
resolution global model using 720 and 1440 CPUs, where we observe even
greater performance improvements. In all cases, the tuned parallel I∕O
implementation achieves much faster write speeds relative to serial
single-file I∕O, with write speeds up to 60 times faster at higher
resolutions. Under the constraints outlined above, we observe that the
performance scales as the number of compute nodes and I∕O aggregators are
increased, ensuring the continued scalability of I∕O-intensive MOM5 model
runs that will be used in our next-generation higher-resolution simulations.
On the numerical integration of the Lorenz-96 model, with scalar additive noise, for benchmark twin experiments
Authors: Grudzien Colin , Bocquet Marc , Carrassi Alberto
Published: April 2020

Abstract. Relatively little attention has been given to the impact of discretization error on twin experiments in the stochastic form of the Lorenz-96 equations when the dynamics are fully resolved but random. We study a simple form of the stochastically forced Lorenz-96 equations that is amenable to higher-order time-discretization schemes in order to investigate these effects. We provide numerical benchmarks for the overall discretization error, in the strong and weak sense, for several commonly used integration schemes and compare these methods for biases introduced into ensemble-based statistics and filtering performance. The distinction between strong and weak convergence of the numerical schemes is focused on, highlighting which of the two concepts is relevant based on the problem at hand. Using the above analysis, we suggest a mathematically consistent framework for the treatment of these discretization errors in ensemble forecasting and data assimilation twin experiments for unbiased and computationally efficient benchmark studies. Pursuant to this, we provide a novel derivation of the order 2.0 strong Taylor scheme for numerically generating the truth twin in the stochastically perturbed Lorenz-96 equations.
Irrigation, damming, and streamflow fluctuations of the Yellow River
Authors: Yin Zun , Ottlé Catherine , Ciais Philippe , Zhou Feng , Wang Xuhui , Jan Polcher , Dumas Patrice , Peng Shushi , Li Laurent , Zhou Xudong , Piao Shilong
Published: April 2020

Abstract. The streamflow of the Yellow River is strongly affected by human activities of irrigation and dam regulation. Many attribution studies focused on the long-term trend of discharge, yet the contributions of these anthropogenic factors to streamflow fluctuations have not been well quantified. This study aims to quantify the roles of irrigation and artificial reservoirs in monthly streamflow fluctuations of the Yellow River from 1982 to 2014 by using the global land surface model ORCHIDEE with a new developed irrigation module, and a separate offline dam operation model. Validation with obsevations demonstrates the ability of our model in simulating the main hydrological processes under human disturbances in the Yellow River basin. Irrigation is found to be the dominant factor leading to 63.7 % reduction of the annual discharges. It might lead to discharge increase in the summer if irrigation is widely applied during a dry spring. After illustrating dam regulation as the primary driver affecting streamflow seasonality, we simulated the changes of water storages in several large artificial reservoirs by a new developed dam model, which does not require any prior knowledge from observations but only implements two simple operation rules based on their inherent regulation capacities: reducing peak flows for flood control and securing base flows during the dry season. Inclusion of dams with this simplified model substantially improved the simulated discharge by at least 42 %. Moreover, simulated water storage changes of the LongYangXia and LiuJiaXia dams coincide well with observations with a high correlation value of about 0.9. We also found that the artificial reservoirs can affect the inter-annual fluctuations of the streamflows, which however was not reproduced faithfully by our dam model due to lack of annual operation rules. From the mismatches between simulations and observations, we inferred the potential impacts of multiple medium reservoirs and five large irrigation districts (e.g., the Hetao Plateau), which were ignored in most previous hydrological studies.
Estimating the depth and evolution of intrusions at resurgent calderas: Los Humeros (Mexico)
Authors: Urbani Stefano , Giordano Guido , Lucci Federico , Rossetti Federico , Acocella Valerio , Carrasco-Núñez Gerardo
Published: April 2020

Abstract. Resurgent calderas are excellent targets for geothermal
exploration, as they are associated with the shallow emplacement of magma,
resulting in widespread and long-lasting hydrothermal activity. Resurgence
is classically attributed to the uplift of a block or dome resulting from
the inflation of the collapse-forming magma chamber due to the intrusion of
new magma. The Los Humeros volcanic complex (LHVC; Mexico) consists of two
nested calderas: the outer and older Los Humeros formed at 164 ka and the
inner Los Potreros formed at 69 ka. The latter is resurgent and currently
the site of an active and exploited geothermal field (63 MWe installed).
Here we aim to better define the characteristics of the resurgence in Los
Potreros by integrating fieldwork with analogue models and evaluating the
spatio-temporal evolution of the deformation as well as the depth and extent of the
intrusions responsible for the resurgence, which may also represent the local
heat source(s). Structural field analysis and geological mapping show that the floor of the
Los Potreros caldera is characterized by several lava domes and cryptodomes
(with normal faulting at the top) that suggest multiple deformation sources
localized in narrow areas. Analogue experiments are used to define the possible source of
intrusion responsible for the observed surface deformation. We apply a
tested relationship between the surface deformation structures and depth of
elliptical sources to our experiments with sub-circular sources. We found
that this relationship is independent of the source and surface dome
eccentricity, and we suggest that the magmatic sources inducing the deformation
in Los Potreros are located at very shallow depths (hundreds of metres),
which is in agreement with the well data and field observations. We propose
that the recent deformation at LHVC is not a classical resurgence associated
with the bulk inflation of a deep magma reservoir; rather, it is related to
the ascent of multiple magma bodies at shallow crustal conditions (<1 km depth). A similar multiple source model of the subsurface structure has
also been proposed for other calderas with an active geothermal system (Usu
volcano, Japan), suggesting that the model proposed may have wider
applicability.
DeepBedMap: Using a deep neural network to better resolve the bed topography of Antarctica
Authors: Leong Wei Ji , Horgan Huw Joseph
Published: April 2020

Abstract. To better resolve the bed elevation of Antarctica, we present DeepBedMap – a novel machine learning method that produces realistic Antarctic bed topography from multiple remote sensing data inputs. Our super-resolution deep convolutional neural network model is trained on scattered regions in Antarctica where high resolution (250 m) groundtruth bed elevation grids are available. The model is then used to generate high resolution bed topography in less well surveyed areas. DeepBedMap improves on previous interpolation methods by not restricting itself to a low spatial resolution (1000 m) BEDMAP2 raster image as its prior. It takes in additional high spatial resolution datasets, such as ice surface elevation, velocity and snow accumulation to better inform the bed topography even in the absence of ice-thickness data from direct ice-penetrating radar surveys. Our DeepBedMap model is based on an adapted Enhanced Super Resolution Generative Adversarial Network architecture, chosen to minimize per-pixel elevation errors while producing realistic topography. The final product is a four times upsampled (250 m) bed elevation model of Antarctica that can be used by glaciologists interested in the subglacial terrain, and by ice sheet modellers wanting to run catchment or continent-scale ice sheet model simulations. We show that DeepBedMap offers a more realistic topographic roughness profile compared to a standard bicubic interpolated BEDMAP2 and BedMachine Antarctica, and envision it to be used where a high resolution bed elevation model is required.
Identidad, memoria y nostalgia de la escena neobakala madrileña
Authors: Leste Moyano Eduardo
Published: April 2020

Los neobakalas son adultos que construyen su identidad a través del relato nostálgico de una música y unas tecnologías que sirven para proyectar una jerarquía sobre la Electronic Dance Music (EDM), otra escena musical protagonizada por jóvenes. Este texto explora, por medio de una etnografía expandida, esta construcción identitaria que es articulada desde el concepto de escena musical, desde las múltiples generaciones definidas por Feixa —X, @ y #—  y desde distintas propuestas en torno a la nostalgia (de Appadurai y Herzfeld). Este artículo, no obstante, no da por sentado el relato nostálgico de los neobakalas y lo cuestiona, proponiendo uno alternativo, elaborado por medio de la memoria y la historia de los propios neobakalas para que, de esta forma, se puedan contrastar ambos. Esta contraposición entre pasado y presente pondrá de manifiesto cómo la nostalgia erosiona y transforma la memoria de unos sujetos que han producido distintas identidades en diferentes momentos de sus vidas y cómo estas mismas identidades responden, sobre todo, a las sucesivas necesidades de un contexto que altera constantemente sus condiciones de vida.
Confinamiento, agencia y reinserción. Análisis etnográfico de una vida dentro y fuera de prisión
Authors: Osuna Carmen
Published: April 2020

Este artículo se basa en un estudio de caso y analiza, a partir de un trabajo de campo etnográfico, la vida de una mujer a través de dos ejes temporales, su vida en prisión y su vida en “libertad”.  En primer lugar, presenta el modo en que ejercía su agencia en un contexto como el penitenciario. En segundo lugar, y en contraste, la manera en que su vida fuera de la cárcel se convirtió en una prisión de muros invisibles en el que se sentía, literalmente, acorralada. El objetivo es reflexionar sobre cómo se perpetúan las prácticas de confinamiento más allá de los muros, presentar las cárceles como espacios ambiguos y poner de manifiesto que la reincidencia está íntimamente relacionada con una cuestión estructural de falta de recursos personales, contribuyendo al debate sobre los “procesos de reinserción”.