bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploiting Bioschemas Markup to Populate IDPcentral
Authors: Gray Alasdair J. G. , Papadopoulos Petros , Mičetić Ivan , Hatos András
Published: June 2021

One of the goals of the ELIXIR Intrinsically Disordered Protein (IDP) community is create a registry called IDPcentral. The registry will aggregate data contained in the community's specialist data sources such as DisProt, MobiDB, and Protein Ensemble Database (PED) so that proteins that are known to be intrinsically disordered can be discovered; with summary details of the protein presented, and the specialist source consulted for more detailed data. At the ELIXIR BioHackathon-Europe 2020, we aimed to investigate the feasibility of populating IDPcentral harvesting the Bioschemas markup that has been deployed on the IDP community data sources. The benefit of using Bioschemas markup, which is embedded in the HTML web pages for each protein in the data source, is that a standard harvesting approach can be used for all data sources; rather than needing bespoke wrappers for each data source API. We expect to harvest the markup using the Bioschemas Markup Scraper and Extractor (BMUSE) tool that has been developed specifically for this purpose. The challenge, however, is that the sources contain overlapping information about proteins but use different identifiers for the proteins. After the data has been harvested, it will need to be processed so that information about a particular protein, which will come from multiple sources, is consolidated into a single concept for the protein, with links back to where each piece of data originated.As well as populating the IDPcentral registry, we plan to consolidate the markup into a knowledge graph that can be queried to gain further insight into the IDPs.
Plasma Activity of Antioxidants and Lipid Peroxidation Level Among Patients having Moderate and Severe Hypertension
Authors: Akinlua I
Published: June 2021

Hypertension or high blood pressure and its complications is a major cause of morbidity and mortality all over the world. The development of hypertension has been linked to atherosclerosis formation and progression which in turn has its root in free radicals induced oxidative stress and antioxidants present. This work was undertaken to determine plasma activity of enzymatic antioxidants and lipid peroxidation level in patients with moderate and severe hypertension to establish a possible association between these parameters and progression of hypertension. A total number of 60 hypertensive patients that are freshly diagnosed made up of 30 moderate and 30 severe hypertensive patients with 30 relatively healthy subjects as control recruited from Wesley Guide Hospital, Ilesa, Osun State Nigeria was used for this study. Plasma activity of catalase, superoxide dismutase, glutathione peroxidase and plasma level of malondialdehyde (MDA) was determined in both patients and control subjects using standard methodologies. The results obtained was subjected to statistical analysis using two-way analysis of variance (ANOVA) and post-hoc Duncan test with (p<0.05) considered to be significant. The result of this study revealed a significant decrease (P<0.05) in the activity of the antioxidant enzymes considered. The plasma MDA in all the patients was raised but not statistically significant p<0.05 from result obtained for the control subjects. Progressive decrease in the activity of antioxidant enzymes in these patients and a possible oxidative stress as hypertension progresses as shown in this study could be a pointer to the fact that these molecules might influence greatly the progression of hypertension.
Nutrition Interventions for Improving Nutritional Status of Toddlers in Cirebon Regency Indonesia
Authors: Dian Hartina Farisita  , Ali Khomsan  , Ikeu Ekayanti  , Mira Dewi  , Karina Rahmadia Ekawidyani
Published: June 2021

Background: One of the highest nutritional problems in Indonesia is stunting.Cirebon Regency has a stunting prevalence of 25.6%. The prevalence of stunting above 20% is considered high according to the WHO.This study aims to analyze the differences in nutrition knowledge, attitudes, and practices of mothers of children under five before and after nutrition education interventions as well as to analyze nutrient intakes and nutritional status of toddlers before and after being given eggs and milk supplementation. Methods: Pre-experimental study, with one group pre and posttest design. Subjects were 58 toddlers. The intervention given to mothers of toddlers was nutrition education which was carried out in three meetings, and supplementary feeding in the form of eggs and milk for 90 days for toddlers.The data collected consisted of household socio-demographic, toddlers characteristics, nutritional knowledge, attitude and practice, nutrient intakes, nutritional status and hemoglobin levels. Conclusion: Nutrition education interventions increased the nutritional knowledge and practice of mothers with children under five, whiles upplementary feeding for 90 days increased nutrients intake for toddlers but did not improve their nutritional status and did not increase the hemoglobin levels.
Evaluation of Implant Stability after Conventional Versus Piezoelectric Alveolar Ridge Splitting with Immediate Implantation in Mandibular Posterior Region “A Randomized Controlled Trial”
Authors: Nermeen N. Mahmoud  , Tarek El-Ghareeb  , Elzahra F. Elbagoury
Published: June 2021

Aim of the Study: The purpose of this study is to answer a clinical question whether the use of piezoelectric alveolar ridge splitting (ARS) with simultaneous implant placement will enhance implant stability in comparison with conventional motorized surgical disc and bur or not.Materials and Methods: twenty four dental implants were placed in fourteen edentulous ridges and were divided into 2 equal groups (Group I & Group II). Patients in both groups underwent ARS for narrow edentulous posterior mandibular ridge with simultaneous implant placement. In Group I, 12 implants were placed in 8 edentulous ridges after ARS performed using piezoelectric saws. In Group II, 12 implants were placed in 6 edentulous ridges after ARS performed using conventional motor driven surgical disc and bur. Implant stability was measured by means of Osstell TM device, first intraoperatively, then at 6 months and 9 months postoperatively. Moreover, radiographic assessment of marginal bone loss (MBL) was done at 6 months postoperatively. Bone width gain was calculated from pre and post-operative cone beam CT.Results: Regarding implant stability, there was a statistically significant difference between the two groups at all time intervals. Regarding MBL, and width gain, there was no statistically significant difference between both groups.Conclusion: Piezosurgery enhanced implant stability but didn’t mitigate the bone loss associated with ARS or increase amount of ridge width gain.
Effect of Propolis and Pomegranate Extract Mouthwashes on Taste Alteration, Salivary pH and Antibacterial Activity in High Caries Risk Patients: A Randomized Control Trial
Authors: Randa A. El Naggar  , Shereen Hafez Ibrahim  , Rania Sayed Mosallam  , Mohamed Adel Khairy
Published: June 2021

Dental caries prevention is the key to control dental caries worldwide problem nowadays. Chlorhexidine is the gold standard antibacterial agent but it has many side effects so natural products have been proposed as a safer alternative; Propolis and pomegranate are known with their great antibacterial properties.Aim: This study assessed taste alteration, salivary pH and antibacterial activity of propolis and pomegranate mouthwashes compared to chlorhexidine mouthwash in high caries risk patients.Materials and Methods: A total of 80 participantswere divided randomly into four groups, in a parallel group design. Group 1:propolis mouthwash, group 2: pomegranate mouthwash, group 3: chlorhexidine mouthwash and group 4: saline. Salivary sample was collected at baseline, immediately after mouthwash usage and after seven days. The pH of the collected saliva and streptococcus mutans bacterial count were assessed. Participants received a questionnaire to assess taste alteration on the seventh day. Statistical analysis took placeusing ANOVA/ Kruskal-Wallis and Wilcoxon tests.Results: Chlorhexidine has a significantly higher incidence of taste alteration compared to the other mouthwashes which showed statistically similar incidence. The highest salivary pH value was recorded after immediate usage of mouthwashes in all groups, after seven days there was no significant change in chlorhexidine and saline groups. There was no statistically significant difference between the total percentage reduction of bacterial count in all groups but with highest percentage of reduction after immediate usage.Conclusion: Propolis and pomegranate mouthwashes could be considered as an alternative to chlorhexidine mouthwash
Effect of Benson’s Relaxation Therapy (BRT) on Post Caesarean Section Pain and Stress
Authors: Parmar Riddhikumari , Tiwari Anjali
Published: June 2021

Background: Pregnancy is exciting and unique period in a woman’s life. During this period women’s bodyundergo different anatomical and physiological changes. When there are some risk associated with normalvaginal delivery to mother and baby than caesarean section is required. Many mother encounter with variousdiscomfort after caesarean delivery such as pain, stress, mood changes, postpartum depression. This studywas conducted to evaluate the effect of Benson’s relaxation therapy on level of pain and stress among postcaesarean section mothers.Method: A quasi experimental study was done with total 60 participant: 30 in each experimental andcontrol group were enlisted with the help of convenient sampling method. Samples are randomly allocatedto both group. The tool for data collection includes, socio demographic and maternal variables, Numericalpain rating scale for pain assessment and Modified Hung’s postpartum scale to assess stress level. Preinterventionalassessment done for both group. Post interventional pain and stress was assessed on third dayby using same tool.Conclusion: This study concluded that there is constructive outcome of BRT in lessening pain and stress levelamong post caesarean section mothers. So to reliving such symptoms, this procedure can be implemented inhospital setting as it is simple and easy to use and practice, non expensive.
Lower Extremities Fractures in Alnajaf/ Iraq
Authors: Hasan Razoki Mohammed , Albosaisi Hmamdalla Hadi , Hasan Ahmed Mohammed
Published: June 2021

Purpose: To take an idea about the size of an important socioeconomically public health problem and toput solutions.Material and Methods: All the patients who sustained lower extremities fractures in one year (between 1stJan. till 31st Dec. 2018)included in this study. Data collected from the documents of Alsader medical city inAlnajaf, it included the types of fractures, ages , gender, side of fracture ,and causes. Analysis of these datawas done and the results were demonstrated in tables.Results: The total number of the patients was (2466),males (1655) and females( 811).The types of thefractures include: hip fracture 350, fracture femure 738, patellar fracture 49, leg fracture 831, ankle fracture220 and foot fracture 278. People in the 1st decade were the most 697 followed by the 3rd decade 446, 2nddecade 440 , 4th decade 287 , 7th decade 193, 5th decade 155, 6th decade 142 , and above 70 (106) patient.The most common cause of the fractures was RTA in 800 patient followed by fall 727, fall from height 594,and fall of heavy object 123 patients.Conclusion: Children and adolescent are mostly affected. People below thirty represent more than 50%of the cases. Planes from all the government administrations showed be more effective to decrease theoccurrence of such injuries by learning programs to avoid fractures in all ages , in order to decrease thesocioeconomically burden on the community.
Properties of graphene deposited on GaN nanowires: influence of nanowire roughness, self-induced nanogating and defects
Authors: Kierdaszuk Jakub , Kaźmierczak Piotr , Grzonka Justyna , Krajewska Aleksandra , Przewłoka Aleksandra , Kaszub Wawrzyniec , Zytkiewicz Zbigniew R , Sobanska Marta , Kamińska Maria , Wysmołek Andrzej , Drabińska Aneta
Published: June 2021

We present detailed Raman studies of graphene deposited on gallium nitride nanowires with different variations in height. Our results indicate that different density and height of nanowires impact graphene properties such as roughness, strain, and carrier concentration as well as density and type of induced defects. Tracing the manifestation of those interactions is important for the application of novel heterostructures. A detailed analysis of Raman spectra of graphene deposited on different nanowire substrates shows that bigger differences in nanowires height increase graphene strain, while a higher number of nanowires in contact with graphene locally reduces the strain. Moreover, the value of graphene carrier concentration is found to be correlated with the density of nanowires in contact with graphene. The lowest concentration of defects is observed for graphene deposited on nanowires with the lowest density. The contact between graphene and densely arranged nanowires leads to a large density of vacancies. On the other hand, grain boundaries are the main type of defects in graphene on rarely distributed nanowires. Our results also show modification of graphene carrier concentration and strain by different types of defects present in graphene. Therefore, the nanowire substrate is promising not only for strain and carrier concentration engineering but also for defect engineering.
Anuario Meteorológico Cafetero 1960
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1964
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1965
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1967
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1970
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1971
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1973
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1974
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1981
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1982
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1987
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1990
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1993
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1995
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1997
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 2001
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 2004
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 2005
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 2006
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Natural Night Sky Brightness during Solar Minimum
Authors: Alarcon Miguel R. , Serra-Ricart Miquel , Lemes-Perera Samuel , Mallorquín Manuel
Published: June 2021

In 2018, Solar Cycle 24 entered into a solar minimum phase. During this period, 11 million zenithal night sky brightness (NSB) data were collected at different dark sites around the planet, including astronomical observatories and natural protected areas, with identical broadband Telescope Encoder and Sky Sensor photometers (based on the Unihedron Sky Quality Meter TLS237 sensor). A detailed observational review of the multiple effects that contribute to the NSB measurement has been conducted with optimal filters designed to avoid brightening effects by the Sun, the Moon, clouds, and other astronomical sources (the Galaxy and zodiacal light). The natural NSB has been calculated from the percentiles for 44 different photometers by applying these new filters. The pristine night sky was measured to change with an amplitude of 0.1 mag/arcsec2 in all the photometers, which is suggested to be due to NSB variations on scales of up to months and to be compatible with semiannual oscillations. We report the systematic observation of short-time variations in NSB on the vast majority of the nights and find these to be related to airglow events forming above the mesosphere.
A new species of Gonyosoma Wagler, 1828 (Serpentes, Colubridae), previously confused with G. prasinum (Blyth, 1854)
Authors: Liu Shuo , Hou Mian , Lwin Ye Htet , Wang Qiaoyan , Rao Dingqi
Published: June 2021

A new species of the genus Gonyosoma Wagler is described from Yunnan Province, China. The new species closely resembles G. prasinum (Blyth), but it is differentiated from the latter species by the following characters: precloacal plate divided, iris blue and inside of mouth greyish-white in life. Based on phylogenetic analyses of mitochondrial cytochrome b sequence data, the new species is recovered as the sister species to G. prasinum by Bayesian Inference and Maximum Likelihood analyses. The uncorrected pairwise distance between the new species and other species of the genus Gonyosoma ranged from 11.78% to 17.07% calculated using the mitochondrial cytochrome b sequence. This discovery increases the number of Gonyosoma species to seven.
Vers une géopolitique commune ? Les relations de l’Union européenne avec la Chine
Authors: Uterwedde Henrik
Published: June 2021

Il n’est pas facile de mesurer l’impact de la présidence allemande sur les relations UE-Chine. C’est pourquoi la contribution s‘efforce à placer le dossier chinois dans un contexte temporel plus large, et à éclairer les enjeux tant économiques que politiques et géostratégiques. La dimension économique a joué un rôle primordial dans les relations. Le volume des échanges commerciaux s’est multiplié par huit entre 2000 et 2019. Pour l’UE, la Chine est devenue le second partenaire commercial de l’UE derrière les États-Unis, et pour l’Allemagne, dont l’industrie exportatrice profite considérablement des échanges, même le partenaire le plus important. Toutefois les difficultés se sont multipliées. Elles s’expriment par le contraste entre la fermeture chinoise et la plus grande ouverture des marchés allemands et européens, mais aussi par la tentative chinoise d’investir et de prendre pied dans certains secteurs stratégiques touchant à la sécurité des infrastructures sensibles. Cela a provoqué d’abord un débat critique puis un durcissement de la législation allemande encadrant les investissements directs venant de pays hors-UE. Il reste à voir si l’accord sur les investissements, paraphé en fin de la présidence allemande suite à des concessions chinoises de dernière minute, va rééquilibrer les relations économiques entre l’UE et la Chine. Il s’est avéré de plus en plus que les relations économiques ne peuvent être séparées de la dimension politique et des visées géostratégiques de la Chine. Comme ses partenaires européens, l’Allemagne considère désormais la Chine comme un partenaire mais aussi concurrent économique ainsi qu’un rival systémique. Pour faire face, l’Union devra développer sa capacité de poursuivre une véritable stratégie géopolitique commune.
Séquences de « perlustration » dans les échographies prénatales : dire et voir le sexe
Authors: Licoppe Christian , Greco Luca , Rollet Nicolas
Published: June 2021

Dans cet article, nous étudions des enregistrements vidéo d’échographies prénatales dans la perspective de l’ethnométhodologie et l’analyse de conversation (EM/CA). Nous nous focalisons sur les séquences de perlustration interactionnelle qui portent sur la reconnaissance du sexe du fœtus. Nous montrons comment ces séquences peuvent émerger selon deux trajectoires différentes, l’une orientée sur une découverte unilatérale du sexe par l’expert, l’autre, plus collaborative, orientée vers un « voir ensemble ». Ces deux trajectoires interactionnelles manifestent des formes d’articulation différentes entre modalités de la connaissance, cadres de participation et formes de couplage des énoncés avec leur environnement. Nous montrons comment leur analyse et leur compréhension nécessite de mobiliser simultanément les deux aspects principaux du travail de Goodwin, d’un côté la multimodalité et le concept d’« énoncé couplé à l’environnement », et de l’autre, la notion de « vision professionnelle ».
Fragments de la vie d’avant : une forme de récit dans des séances de soutien psychosocial pour des femmes réfugiées
Authors: Traverso Véronique
Published: June 2021

Dans cet article, je m’attache à caractériser des petits récits produits de façon récurrente dans le cadre de séances de soutien psychosocial pour des femmes réfugiées et précaires au Liban. Je les examine comme « des champs d’action », en montrant comment ils transforment à différents niveaux la situation dans lesquelles ils sont produits et en cherchant à comprendre ce que font les femmes avec ces « récits d’avant ».
Les gestes de pointage dans un environnement changeant et éphémère : les leçons de conduite
Authors: De Stefani Elwys , Deppermann Arnulf
Published: June 2021

Parmi les nombreuses contributions de Charles Goodwin à l’étude des interactions sociales, ses travaux sur les gestes de pointage (1986, 2003, 2007) et la vision professionnelle (1994) constituent un apport majeur. Forts de l’enseignement goodwinien, nous examinons le recours aux gestes de pointage lors des instructions de navigation observables dans des leçons de conduite. Nous décrivons quatre exécutions indexicales différentes des gestes de pointage employés pour indiquer un parcours à suivre : les gestes trajectoire, les gestes géométriques, schématiques et contrastifs. Les gestes trajectoire tracent une ligne dans l’espace, révélant ainsi une composante déictique et une composante iconique. Les gestes géométriques instaurent une relation vectorielle avec la configuration routière visible, alors que les gestes schématiques reposent sur une représentation sémiotique stylisée de l’environnement. Ni complètement géométriques, ni schématiques, les gestes contrastifs se basent sur une représentation oppositionnelle de l’espace ambiant. La mobilité des interactants, leur asymétrie épistémique, l’activité didactique, et la séquentialité de l’interaction contribuent à donner leur sens à ces gestes de pointage.
Continuum et maintien du lien social professionnel en situation de conflit verbal écrit : être poli ou impoli, mais y mettre les formes
Authors: Fracchiolla Béatrice , Romain Christina
Published: June 2021

Le contexte même des échanges électroniques (interaction verbale asynchrone) les rend plus propices à la tension verbale : certains éléments (linguistiques et discursifs) y sont exacerbés en raison de l’absence d’autres éléments (prosodiques et mimogestuels) généralement présents dans les communications synchrones. En quoi et comment les échanges de courriels à plusieurs personnes en contexte institutionnel favorisent alors la cristallisation de la tension verbale et quels peuvent être leurs impacts sur le devenir de l’interaction verbale asynchrone ? Constitué de courriels de type CC échangés entre universitaires, notre corpus est étudié sous l’angle de l’analyse linguistique de la violence verbale, en tant que montée en tension contextualisée se déclinant à travers différentes étapes dont : des actes de langage dépréciatifs, des marqueurs discursifs de rupture, des déclencheurs de conflits, et l’analyse du fonctionnement de l’agression verbale, de son impact et de sa gestion interactionnelle globale.
Révolte et ivresse
Authors: Lamarche-Vadel Gaëtane
Published: June 2021

Les Iraniens et Iraniennes ont développé une intelligence pratique du contournement des interdits. Une séparation ancienne du privé et du public ( andaruni/biruni ) s’est transformée en un jeu subtil avec les valeurs, les modes de vie, les arts permis/prohibés. Illicites et présents partout mais à l’écart, la musique, les chants, les voix sont à la fois particulièrement prisés et contrôlés. Saisissant ce sujet, des cinéastes et des musiciens traitent de la censure et produisent en même temps ce qui est illicite : la musique à travers des concerts, auditions, répétitions. Des chansons réfèrent à des poèmes soufis prônant l’ivresse et la révolte.
La République islamique d’Iran
Authors: Therme Clément , Lamarche-Vadel Gaëtane
Published: June 2021

L’auteur analyse la politique intérieure et extérieure de la République islamique d’Iran en phase avec une situation économique et sociale très dégradée et un contexte géopolitique fortement bousculé ces derniers temps. L’élection du nouveau président Joe Biden aux États-Unis, la surenchère de l’Iran sur le programme d’enrichissement de l’uranium, les élections iraniennes prochaines avec une tendance néoconservatrice annoncée, le rapprochement israélo-gulfien obligent à rebattre les cartes. Comment ces phénomènes vont-ils se croiser et dans quel sens ? Apaisement ou au contraire durcissement des positions ? Sur quels alliés l’Iran peut-il compter ? Dans quelle mesure la population iranienne exerce-t-elle une influence sur les orientations gouvernementales du pays à l’extérieur de ses frontières ?
Actualité de l’opéraïsme italien
Authors: Moulier Boutang Yann
Published: June 2021

Comment réévaluer, cinquante ans plus tard, quelques-unes des principales percées et des angles morts du mouvement opéraïste italien ? À partir d’analyses théoriques pimentées d’anecdotes, cet article aide à comprendre les continuités et les infléchissements qui ont conduit de l’activisme des années 1970 à la publication de l’œuvre multivolume de Michael Hardt et Toni Negri dans les années 2000, et jusqu’aux positions actuelles de la revue Multitudes .
Aristote a-t-il fondé la théorie littéraire ?
Authors: Robelin Jean
Published: June 2021

Malgré un lieu commun indéfiniment répété, Aristote n’a pas fondé la théorie littéraire. La notion de littérature est introuvable chez lui et son influence l’a rendue longtemps impensable. Dans la mesure où l’antiquité classique connaissait des pratiques proprement littéraires et une réflexion sur ces pratiques, il faut questionner les obstacles qui en ont bloqué l’émergence. La littérature pourra émerger quand la production textuelle bascule sous la domination de l’écrit, quand la fiction cesse d’être dominée par le vraisemblable, et quand une théorie interprétative de la signification se substitue à une théorie logique du sens.
Art et interprétation
Authors: Michel Johann
Published: June 2021

L’objet de l’article est d’interroger le statut d’une œuvre d’art à partir du problème de l’interprétation posé initialement par Arthur Danto. Une œuvre d’art demande-t-elle nécessairement à être interprétée ? L’argumentation se déploie à une double échelle. À une échelle ontologique, l’enjeu est de savoir sous quelles conditions un objet appartient à la classe des œuvres d’art. À une échelle dénotative, l’enjeu est de savoir si toute représentation artistique requiert un travail interprétatif. L’auteur défend une théorie de l’interprétation restreinte , d’inspiration pragmatiste, en vertu de laquelle l’interprétation, comme activité suspensive et réflexive, n’intervient que lorsque le rapport au sens est troublé, confus, problématique. Ainsi une œuvre d’art n’est soumise à interprétation que lorsque son statut ontologique ne va pas de soi et lorsque son potentiel de dénotation contrarie notre rapport familier au sens.
Fantaisies architecturales chez Iakov Tchernikhov : surpasser la mimèsis à travers la phantasia comme agent du progrès
Authors: Charitonidou Marianna
Published: June 2021

L’article examine les « compositions » de Tchernikhov en liant sa recherche constante de nouvelles formes à la capacité de convertir les « fantaisies » en représentations. Contrairement à Aristote, qui conçoit la mimèsis comme l’équivalent de l’entreprise artistique, Tchernikhov perçoit ses « compositions » comme des actes de dépassement de la mimèsis par la phantasia . Les illustrations visionnaires de ses Fantaisies architecturales expriment son intention de remplacer les mots par des images graphiques. Son approche est fondée sur la croyance que la puissance de l’imagination permet à la langue graphique, qui est par ailleurs internationale, de fonctionner comme un précurseur du progrès. L’objectif de l’article est d’élucider comment Tchernikhov traite la tension entre imagination et réalité et d’examiner dans quelle mesure sa production graphique parvient à surmonter la mimèsis à travers la phantasia . La réponse à ces questions pourrait nous aider à expliquer pourquoi Tchernikhov a souvent été jugé comme inclassable et à évaluer à quel point sa démarche reflète les polarités entre les rationalistes et les constructivistes. L’opposition entre « composition » et « construction » permet de mieux comprendre le positionnement à la fois singulier et fondamental de Tchernikov par rapport au constructivisme. L’article met en évidence le fait que le rôle essentiel de la phantasia pour Tchernikhov découle de la valorisation de la « composition » plutôt que la « construction ».
L’épidémiologie computationnelle à l’ère de la COVID-19
Authors: Li Vigni Fabrizio
Published: June 2021

La COVID-19 a propulsé sur le devant de la scène des spécialistes des réseaux ayant fait de la modélisation épidémiologique leur occupation principale. Deux questions se posent ici à propos de cette spécialité : d’une part, comment sont construits les modèles et que recouvre leur irruption dans le débat ces derniers mois ; et d’autre part, comment des physiciens et des mathématiciens ont-ils réussi à devenir des experts épidémiologistes sans un parcours de professionnels de santé ? Nous abordons ces questions en étudiant les modèles produits par cette spécialité, ainsi que le processus de son émergence et la division du travail en son sein. La dernière section de l’analyse revient sur la première vague de l’épidémie et sur les débats qu’elle a pu renforcer ou ouvrir par rapport à cette nouvelle spécialité. L’article se fonde sur une enquête de terrain menée dans quatre laboratoires d’épidémiologie computationnelle, basés à Paris, Turin, Boston et Los Alamos.
Confort climático y turismo. Estudio aplicado a diferentes niveles de resolución temporal en Puerto Iguazú, Argentina
Authors: Tanana Ariadna Belén , Ramos María Belén , Gil Verónica , Campo Alicia María
Published: June 2021

El clima es un factor que condiciona las prácticas turístico-recreativas en espacios al aire libre. El bienestar y confort térmico constituyen exigencias del visitante susceptibles de evaluarse mediante la faceta térmica del clima. Este trabajo se aplica a Puerto Iguazú, un destino de clima subtropical húmedo. El mismo está estructurado con base en dos objetivos, por un lado, comparar tres índices bioclimáticos: Complejo Termo-anemométrico (P), Complejo Termo-higrométrico (THI) y Humidex (H), versus un índice climático-turístico: Tourism Climate Index (TCI) a fin de establecer cuál ofrece un mejor ajuste a la realidad estudiada. Por otro, a fin de generar información con mayor grado de detalle, se busca conocer el comportamiento en resolución horaria del P y H. El cálculo de los índices a nivel mensual (P, THI, H y TCI) se realizó con base en las estadísticas climatológicas de la estación Iguazú Aero para el período 1981-2010, proporcionadas por el Servicio Meteorológico Nacional. Los índices P y H en resolución horaria se calcularon a partir de datos meteorológicos de la misma estación para el período 2001-2010, obtenidos del sitio Meteomanz.com. Los resultados obtenidos muestran que la componente termo-higrométrica es la de mayor peso en el destino analizado, lo cual es coherente con sus características climáticas. La aplicación de los índices permitió determinar los momentos del año y horas del día más benignas para la realización de prácticas turístico-recreativas al aire libre.
Las jornadas de puertas abiertas como dispositivos de segmentación de los mercados educativos locales. El caso de la educación postobligatoria
Authors: Curran Marta , Castejón Alba , Manzano Martí
Published: June 2021

El objetivo del artículo es analizar el rol de las jornadas de puertas abiertas como dispositivos institucionales para posicionar las escuelas en los mercados educativos locales. El artículo se basa en un análisis cualitativo a partir de observaciones en 25 jornadas de puertas abiertas en centros que ofrecen educación secundaria obligatoria y postobligatoria de Barcelona. Los resultados muestran, por una parte, que las acciones promocionales de las escuelas están mediadas por su posición en la jerarquía local y por unas características objetivamente desiguales en términos de titularidad, composición social y tipo de oferta. Por otro, muestran que, a partir de estas posiciones desiguales, las escuelas despliegan diferentes lógicas de acción orientadas a proyectar su estatus entre diferentes perfiles sociales de familias y estudiantes. En conjunto, el artículo presenta una tipología de escuelas que contribuye a entender la jerarquización del mercado educativo local en el campo de la educación postobligatoria.
Life Cycle Assessment of the NdFeB Recycling Process Route for Oil Sludge Waste Treatment
Authors: Fan Yu Jie , Gao Feng , Sun Bo Xue , Yue Ming , Yin Xiao Wen
Published: June 2021

In this paper, based on the life cycle concept of oil sludge waste from the NdFeB manufacturing process, we investigate the process technology route to recover valuable elements from the oil sludge waste by hydro-metallurgical refining and calcium reduction to fabricate a sintered NdFeB magnet. The life cycle list was calculated and the environmental impact of the main processes was examined using the ReCiPe method, and the main factors of environmental impact were identified. The results showed that the hydrometallurgical technology route, compared with the calcium reduction technology route, resulted in 119.84% of human health hazards, 119.84% of ecological damage and 119.84% of resource. The consumption was found to be 13.08% higher than that of FDP. The sensitivity analysis revealed that the production of hydrochloric acid is highly sensitive to FDP, and power consumption is high to WTP in the hydrometallurgical technology route, and WTP in the calcium reduction unit process, and HTP in all processes in the calcium reduction technology route. The overall results show that reducing the environmental impact in the calcium reduction recovery process and accelerating the clean production of China's power resources are of great significance for the recovery of oil sludge waste for the preparation of recycled sintered NdFeB.
Environmental Impact Analysis of Automobile Laminated Glass Production
Authors: Feng Zuo Ju , Gong Xian Zheng , Liu Yu , Li Xiao Qing
Published: June 2021

The rapid development of China’s automobile industry has led to increased demand for automobile glass. Combined with the present situation of China’s automobile glass industry, life cycle assessment(LCA) method was adopted for this study, through investigating the energy consumption and emissions during the raw and auxiliary materials acquisition stage and product production stage for auto laminated glass. Then a life cycle inventory was worked out and the data was characterized and normalized by CML analysis method. The results showed that the most serious environmental impacts were Marine Aquatic Ecotoxicity Potential, abiotic depletion potential-fossil and global warming potential, whose proportion of total environmental impact was 92.2%, 2.41%, 1.75%, respectively. Further analysis showed that the influence of float glass was 36%,42% and 33.9% respectively.
Assessing Water Footprint of Copper Production by Pyrometallurgy
Authors: Lei Zhen Lu , Gong Xian Zheng , Liu Yu , Li Xiao Qing , Chen Shui Long
Published: June 2021

As an important tool for water resource environmental impact assessment, the application of water footprint assessment method in copper production process is conducive to more accurate assessment of water resource environmental impact in copper production process. The water footprint assessment method released by the Water Footprint Network was used to study the water footprint of the production process of cathode copper products produced by pyrometallurgy. It was found that the water footprint of 1 ton of copper produced by pyrometallurgy was 242m3, of which the blue water footprint accounted for 60%, the grey water footprint accounted for 40%. The direct water footprint accounted for 67% and the indirect water footprint accounted for 33%. The characteristics of water footprint contribution at each process were compared, which provided data support and reference for enterprises to better understand the water resource environmental impact of copper by pyrometallurgy and to choose the water resource utilization mode with their own production characteristics.
Effect of Coarse-Grained Ring on Mechanical Properties and Cutting Performance of 2011 Aluminum Alloy Extruded Bar
Authors: Shi Chang Liang , Niu Yan Ping , Lin Yi Min , Hu Quan , Zhang Xin
Published: June 2021

The effects of coarse-grained ring on the mechanical properties and cutting performance of 2011 aluminum alloy extruded bars were studied by metallographic microscope, scanning electron microscope, tensile testing machine and high-speed lathe. The results show that the microstructure of aluminum alloy extruded bar was composed of α-Al phase, Al7Cu2Fe phase, CuAl2 phase and SnBi eutectic phase. There was a coarse-grained ring in the aluminum alloy extruded bar. The coarse-grained ring reduced the mechanical properties and cutting performance of the aluminum alloy extruded bar. The aluminum alloy extruded bar with a diameter of 30 mm had a coarse-grained ring depth of 9 mm and lower mechanical properties, whose the tensile strength was 287.9 MPa, the elongation was 17%, the cutting performance was poor and the chips were long. The aluminum alloy extruded bar with a diameter of 40 mm had a coarse-grained ring depth of 1 mm, higher mechanical properties and better cutting performance, whose the tensile strength was 394.5 MPa, the elongation was 23.5%, the chips were fine and uniform.
Effect of Jet Grading Technology on the Properties and Structural Characteristics of Tungsten Products
Authors: Zhang Yu Qing , Wang Lu Yan , Li Cao Bing , Liu Shan Yu
Published: June 2021

Jet grading technology is an efficient process in different industries. In this research, tungsten powder with different particle size distribution was used as a raw material to produce tungsten products via isostatic pressing as well as sintering. The mechanism of jet grading and the morphology and particle size distribution of different precursors were analyzed. The results showed that jet grading technology had remarkable effect on tungsten powder classification. The appropriate grading treatment was helpful to the formation of tungsten products with high performance. After jet grading and the following process like pressing and sintering, the tungsten products with better properties were manufactured which was used fischer particle size of 3.0~3.5μm as the raw material. The obtained products’ density was 18.77g/cm3 and its hardness was 372.15HV0.3.
Microstructure Evolution and Mechanical Properties of Mg-Gd-Y-Zn-Zr Alloy during Compression
Authors: Jia Lei Chen , Yu Jian Min , Wu Guo Qin , Xu Wen Long , Tian Yong Gang , Zhang Zhi Min
Published: June 2021

The compression behavior and mechanical properties of the Mg-13Gd-4Y-2Zn-0.5Zr (wt.%) alloy filled with intragranular long-period stacking ordered (LPSO) phases at different temperatures were investigated. The results showed that the higher the compression temperature, the smaller the plastic strain that the grains withstand. The grains changed from equiaxed to flat strips when compressed at 350°C, and the morphology of the grains did not change at 450°C. Due to the existence of DRX grains, compression at 450 °C didn’t cause large-angle kink, but the kink angle at 350°C was very large. DRX grains only appeared at the grain boundaries and around the intergranular LPSO phase at the beginning of compression, and only appear at the kink bands (KBs) after the lamellar LPSO phases begin to kink. DRX grains gradually increased with the KBs increasing.
Microstructures and Mechanical Properties of MIG Welded Al-Mg-Si-xCu Alloys
Authors: Cao Hai Long , Tian Yu Xing , Ren Si Meng , Xu Bin , Liu Cheng
Published: June 2021

Welding properties of three alloys with different Cu contents (0.1, 0.4 and 0.9 wt.%) is studied by means of melt inert-gas welding (MIG). The results showed that, with the increase of Cu content from 0.1 wt.% to 0.9 wt.%, the strength and elongation increased obviously. When the Cu content was 0.9 wt.%, the strength and elongation reached 375MPa and 15%, respectively, which is a better match for bearing structure part of vehicles application. Besides, the adding of Cu element provided an increase limit for welding joint strength. Due to abundant coarse phases in fusion zone (FZ) and welding zone (WZ), the strength slightly increased and the failure fracture was different compared with that of 0.1Cu and 0.4Cu alloy. Present result was meaningful and valuable for pushing aluminum application automobile structural parts and other engineering components.
Interface Reaction between DD6 Single Crystal Superalloy and Ceramic Core
Authors: Yao Jian Sheng , Dong Long Pei , Wang Li Li , Yang Shu , Yang Wei , Wang Zeng Li , Shen Bin
Published: June 2021

The interfacial reaction between alloys and ceramic materials is an important factor to influence the quality and service performance of the turbine blade. In this paper, three typical height sections of 120mm, 160mm and 210mm were selected, and the interface reactions between DD6 single crystal superalloy and silica based ceramic cores were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS). The results showed that the infiltration degree of the melt alloy increases with the increase of reaction time. The thickness of the reaction layer could be over 0.3mm when the reaction time increased up to 70min. The main reasons of forming the infiltration layer were the infiltration of the Al element and the interfacial reaction between the Al element and the ceramic core. There formed an aluminum deficient layer on the metal surface because of the interface reaction between the alloy and the ceramic core. The dense layer formed by interfacial reaction on the surface of the core will cause some difficulties for core leaching. Keywords: DD6 single crystal superalloy; Silica based ceramic core; Interface reaction