bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of Mathematical Modeling and its Exploration Based on Genetic Algorithm for Blanking Die Design Parameters Optimization
Authors: Mohan Kumar R.C. , Velmurugan C.
Published: February 2018

The blanking operation have several die design parameters which affect the quality of the blank and its productivity. The main input parameters are sheet thickness and the punch and die clearance and the dependent output parameters are tool life and the burr height. The selected values should be in optimal value. The optimum value is achieved by using the genetic algorithm. The genetic algorithm is an optimization process to find the better results as an output. Then the development of mathematical modeling by using the equations derived from the multiple regression analysis is performed. It is achieved by converting the linear equations into the matrix form and then solving it using mathematical relations. This output is compared with the genetic algorithm results, to get the better results.
Predicting the Deposition Efficiency of Plasma Sprayed Alumina Coatings on AZ31B Magnesium Alloy by Response Surface Methodology
Authors: Thirumalaikumarasamy Duraisamy , Balasubramanian V. , Sabari S. Sree , Rajesh R. , Elayidom Medha R.
Published: February 2018

Plasma sprayed ceramic coatings are successfully employed in many industrial applications, where high wear and corrosion resistance with thermal insulation are needed. Plasma spray parameters such as power, stand-off distance and powder feed rate have significant influence on coating characteristics like deposition efficiency. This paper presents the use of statistical techniques specially response surface methodology (RSM), analysis of variance, and regression analysis to develop empirical relationships to predict deposition efficiency of plasma sprayed alumina coatings on AZ31B magnesium alloy. The developed empirical relationships can be efficiently used to predict deposition efficiency of plasma sprayed alumina coatings at 95% confidence level. Response graphs and contour plots were constructed to identify the optimum plasma spray parameters to attain maximum deposition efficiency in alumina coatings. Further, correlating the spray parameters with coating properties permits the identification of characteristics regime to achieve desired quality of coatings.
Characterisation of Micro Channels Machined with ECDM for Fluidic Applications
Authors: Paul Lijo , George Bibin P. , Varghese Ashwin
Published: February 2018

Electro Chemical Discharge Machining (ECDM) process is an innovative micro machining process to machine electrically conducting and non-conductive materials for micro level application. In this paper an attempt has been made to machine micro channels with ECDM process for micro fluidic application. Micro channels are machined for three different speeds for borosilicate glass with tungsten copper alloy tool of 300 micron diameter with optimized process parameters. Flow rate across micro channels are measured and are found to be reliable for micro fluidic application. Micro channels are found to have good surface finish when machined with optimal conditions. Micro ECDM process is found to be cheaper and faster process compared to existing machining operations in non-conducting materials.
FEM of ECDM Process on Semi Conducting Materials
Authors: Paul Lijo , Pradeep P.V. , Antony Donald
Published: February 2018

Electro Chemical Discharge Machining (ECDM) process has been developed as an innovative machining process for machining non-conductive materials. The various application of this hybrid process is used in many industries like nuclear, medical and automobile industries. The scope of ECDM in micro machining of semiconducting materials is still found to be promising challenge for researchers. Due to many advanced properties of silicon, its use in MEMS industries is enormous. Many researchers have carried out lot of empirical estimation for discharges in ECDM. However very less work has been reported in the modelling of the ECDM process. Present work mainly concentrates on Finite Element Modelling (FEM) of micro holes machined on silicon wafers with ECDM process. A thermal FEM of spark discharge in the ECDM is carried out. The results from FEM are compared with experimental results and are found to be satisfactory. The model developed can be used for prediction of MRR for a particular combination of workpiece-tool arrangement.
Effect of Welding Speed on Mechanical Properties of Friction Stir Welded AA 6082-T6 Al Alloy
Authors: AVULA DHANANJAYULU , Dwivedi D.K.
Published: February 2018

In this study the effect of process parameters on mechanical and microstructural properties of similar AA6082-T6 joints produced by friction stir welding was investigated. Different samples were produced by varying the transverse welding speeds of the tool from 19 to 75 mm/min and a fixed rotational speed of 635 rpm. A more uniform hardness values in the nugget zone were observed at 48 mm/min welding speed. The lowest hardness values were recorded on nugget zone at all the welding speeds. The increase in welding speed increases ultimate tensile strength and reaches maximum and further increase in welding speed results decrease in tensile strength were observed. The welded joint has highest joint efficiency (52.33 %) obtained at the welding speed of 48 mm/min. Similarly with the increase in welding speed decrease in the percentage elongation were recorded.
Investigation of new particle formation at the summit of Mt. Tai, China
Authors: Lv Ganglin , Sui Xiao , Chen Jianmin , Jayaratne Rohan , Mellouki Abdelwahid
Published: February 2018

Abstract. To date, few comprehensive field observations of new particle
formation (NPF) have been carried out at mountaintop sites in China. In this
study, simultaneous measurements of particle size distribution, trace gases, meteorological parameters, and mass concentration and chemical composition of
PM2.5 were performed at the summit of Mt. Tai (1534 m a.s.l.) from 25 July
to 24 August 2014 (Phase I), 21 September to 9 December 2014 (Phase II), and
16 June to 7 August 2015 (Phase III) to investigate characteristics and
favorable conditions of NPF in a relatively clean mountaintop environment.
The NPF events were identified based on particle size distribution measured
by the neutral cluster and air ion spectrometer (NAIS), and 66 such events
were observed during a period of 164 days – corresponding to an occurrence
frequency of 40 %. The formation rates of 3 nm particles (J3) and
growth rates were in the ranges of 0.82–25.04 cm−3 s−1 and
0.58–7.76 nm h−1, respectively. On average, the
condensation sink (CS), O3 concentration, air temperature, and relative
humidity were lower, whereas the SO2 concentration was higher on NPF
days than that on non-NPF days. The CS on Mt. Tai was at a low level and
lower CS was critical for NPF. NPF events were common when wind came from the
east-southeast and west-southwest, which was probably associated with
relatively lower CS in the east-southeast and higher SO2 concentration
in the west-southwest. O3 was not a governing factor for NPF in this
study, and a high level of NOx concentration might be responsible for
the decreased O3 concentration on NPF days. Three categories of backward
trajectories were classified, among which the continental air mass was the
majority. The continental air mass passing through more polluted areas
(denoted as Type I) favored NPF because of enhanced SO2
concentration and potential ammonia with it. An in-depth analysis of SO2
indicated that sulfuric acid was a dominant precursor on Mt. Tai; meanwhile,
biogenic organics released from ambient forests in warm seasons and
anthropogenic volatile organic compounds emitted from domestic heating in cold seasons also promoted NPF.
Low hygroscopicity of organic material in anthropogenic aerosols under pollution
episode in China
Authors: Hong Juan , Xu Hanbing , Tan Haobo , Yin Changqing , Hao Liqing , Li Fei , Cai Mingfu , Deng Xuejiao , Wang Nan , Su Hang , Cheng Yafang , Wang Lin , Petäjä Tuukka , Kerminen Veli-Matti
Published: February 2018

Abstract. Simultaneous measurements of aerosol hygroscopicity and particle phase chemical composition were performed at a suburban site over the Pearl River Delta Region in the late summer of 2016 using a self-assembled Hygroscopicity Tandem Differential Mobility Analyzer (HTDMA) and an Aerodyne Quadruple Aerosol Chemical Speciation Monitor (ACSM), respectively. Hygroscopic growth factor (HGF) of Aitken (30 nm, 60 nm) and accumulation mode (100 nm, 145 nm) particles was obtained under 90 % relative humidity (RH). An external mixture was observed for all-sized particles during this study, with a dominant mode of more hygroscopic (MH) particles as aged aerosols dominated due to the anthropogenic influence. The HGF of less hygroscopic (LH) mode particles increased, while their number fractions decreased, during the daytime due to a reduced degree of external mixing probably from the condensation of gaseous species. These LH mode particles in the early morning or late afternoon could be possibly dominated by carbonaceous material emitted from local automobile exhaust during the rush hours. During polluted days with air masses mainly from the coastal areas, the chemical composition of aerosols had a clear diurnal variation and a strong correlation with the mean HGF. Closure analysis was carried out between the HTDMA-measured HGF and the ACSM-derived hygroscopicity using various approximations for hygroscopic growth factor of organic compounds (HGForg). The result with HGForg of below 1.1 suggests that the organic material in the aerosol from this suburban site, which represents a more anthropogenically influenced aerosol, is close to being hydrophobic even under 90 % RH. According to the closure analysis, a simple linear relationship between HGForg and the oxidation level inferred from the O : C ratio of the organic material was suggested for the current type of aerosols during this study. Compared with the results from other environments, HGForg obtained from our measurements appeared to be less sensitive to the variation of its oxidation level. This finding suggests it is important to consider the differences in the relationship between HGForg and the O : C atomic ratio observed in different laboratory and field environments. Moreover, this result provides an improved hygroscopicity parameterization of organic material in anthropogenically influenced aerosols that can be incorporated into large-scale modeling frameworks, especially for the suburban context in China.
Pre-School Science Education: The Development and Evaluation of Science Teaching Materials
Authors: Aksan Zeynep , Çelikler Dilek
Published: February 2018

It has been aimed with this study that the pre-school teaching candidates develop the science teaching materials as to use in teaching the science subjects, that the factors that the teaching candidates pay attention to develop the teaching material and the contribution of teaching material development process to them are determined. The study was conducted with the participation of 54 third-year undergraduate students majoring in Preschool Teaching. Teaching materials prepared by prospective teachers were examined using descriptive analysis. It was found that prospective teachers took care to build colorful and fun materials designed to attract children’s attention, using easy to source materials. The use of teaching materials in science education is important for drawing and retaining students’ attention, for making science fun, and for achieving long-term and meaningful learning.
Las transnacionales: su influencia en la economía y política de los estados
Authors: Flores Silva Jorge
Published: February 2018

Las grandes corporaciones mundiales y las transnacionales siempre han tratado de someter a los Estados y gobiernos, mediante el poder del dinero y de esa manera también tener control sobre los recursos estratégicos de los países de la periferia, principalmente de África, América Latina y de Medio Oriente. Estas mismas transnacionales son las que aportan y financian campañas de algunos partidos políticos, con el objeto de utilizar los medios de comunicación para orientar el voto de los ciudadanos en los distintos países a fin de posicionar al candidato de su preferencia, que no siempre tienen los mejores programas de gobierno.
Hope for Ukraine, Fall of America, and Putin the Savior: The Supernatural in Ukrainian and Russian Media and Vernacular Contexts
Authors: Lesiv Mariya
Published: February 2018

In Russia and Ukraine, the supernatural often plays an important role in institutional state discourses. This may appear paradoxical, considering that, theoretically, these institutions represent the so-called rationalist paradigm of thinking. The present study shows that, in practice, state institutions constitute part of vernacular sociocultural dynamics where the supernatural is often a leading vehicle for communicating modernity, power, and perceived progress.
Segurança alimentar e revolução verde: questionamentos atuais acerca da luta contra a fome no plano internacional
Authors: Sander Silva de Jesus Alex , Medauar Ommati José Emílio
Published: February 2018

Vigora no plano internacional o paradigma humanista da proteção da pessoa, a fim de resguardar sua dignidade. A aliança entre os países, de viés cooperativo, aponta para um reforço importante para que os direitos humanos se sobressaiam assim na realidade global. O direito à alimentação, de inegável caráter social, se constitui em importante baliza para a dignidade dos homens. A chamada segurança alimentar comporta-se como importante aliada, com o objetivo de qualificar o fundamental direito alimentar. A revolução verde surgiu, na verdade, com o frágil discurso de eliminação da fome no mundo, não significando, no entanto, necessariamente a observância à temática da segurança alimentar. O problema da fome é fundamentalmente político, que merece análise multifacetada, além de um olhar puramente de fomento à produção de alimentos. A cooperação entre os países é essencial nessa empreitada. Portanto, a partir de um olhar conjugado, conclui-se que a eliminação da classe dos famintos a nível global exige da comunidade internacional mais do que aumento da produção de alimentos, como pretendia a revolução verde, mas, sim, aliança fraterna entre os Estados, preocupação com a qualidade desses alimentos e o ataque sistemático à desigualdade social, geradora, no fundo, da própria fome entre os excluídos do mundo.
O Estado e o direito depois da crise
Authors: Leão Luana Da Costa
Published: February 2018

FARIA, José Eduardo. O Estado e do direito depois da crise. 2ª ed. São Paulo: Saraiva, 2017.
Usurpação mineral e tutela ambiental
Authors: Gomes Marcelo Kokke , Nascimento Nathan Gomes Pereira do
Published: February 2018

O presente artigo visa analisar o marco regulatório minerário brasileiro. O regime legal dos bens ambientais minerais exige a interpretação de normas de direito minerário em conformidade com o paradigma da sustentabilidade. O foco do estudo é a usurpação mineral e seus impactos na tutela ambiental. O Direito Minerário deve estar ligado ao Direito Ambiental inclusive em casos de exploração ilegal de bens ambientais. Os referenciais teóricos a alicerçar o desenvolvimento e a subsidiar as conclusões obtidas situam-se em uma linha expansiva do direito ambiental. Portanto, a eficácia do direito ambiental é considerada no contexto de pano de fundo da compreensão dos institutos jurídicos. O trabalho assume uma análise crítico-metodológica para desenvolvimento do tema.
Recuperação de crédito de pessoas jurídicas: uma proposta de reformulação de seus meios mais eficientes
Authors: Maia de Moraes Sales Lilia , Brito Câmara Manuela
Published: February 2018

A presente pesquisa analisa as formas de recuperação de crédito existentes no Estado Democrático Brasileiro, averigua quais desses meios são mais eficazes e mais vantajosos para as sociedades empresárias e propõe uma reformulação na conduta adotada pelas pessoas jurídicas para retomarem os valores inadimplidos por seus compradores. Assim, explora-se as formas de recuperação de crédito e constata-se que a negociação e a mediação são os meios mais eficientes para a pessoa jurídica retomar seus créditos. Então, propõe-se uma reformulação da conduta empreendida pelas empresas na negociação e na mediação no resgate de quantias devidas a elas e faz-se uma adaptação do instituto da recuperação de crédito às técnicas de resolução consensual de conflitos preconizadas por grandes negociadores como William Ury, Roger Fisher, Bruce Patton, Daniel Shapiro e Stuart Diamond. Quanto à metodologia no presenta trabalho, será utilizada a descritiva e analítica com pesquisa bibliográfica.
Proposed Distance-Based Test for Testing Multivariate Multiple Regression Coefficients under Restricted Alternatives
Authors: Hossain M. J. , Majumder A. K.
Published: February 2018

In constructing estimation and hypothesis testing procedures, it is important that all available information such as sign of parameter is used in order to maximize power of the test. Often prior information are known about the sign of regression coefficients (parameter) under test, the best example being that variances cannot be negative. Ignoring information about the signs of regression parameters can lead to loss of power in small samples. With this problem in mind, this paper concerned with developing restricted estimation and hypothesis testing approach in the context of multivariate multiple regression model. Developing the technique of estimating constraint regression coefficients and testing restricted parameters with the aid of information theoretic distance are the main contribution of this paper. The distribution of the existing two-sided test follows central chi-square distribution whereas the test statistic of our proposed distance-based one-sided test follows weighted mixture of chi-square distribution. Monte Carlo simulation indicates that our newly proposed test performs better than existing tests.
INNOVATIONS AND INNOVATIVE ACTIVITY OF POLISH ENTERPRISES IN THE LIGHT OF POLISH AND INTERNATIONAL STUDIES
Authors: Korombel Anna , Nowicka-Skowron Maria
Published: February 2018

Implementation of innovations and accompanying innovative activity of enterprises constitute very important aspects of the development of such entities and the economies in which they function. The aim of the paper is to assess innovativeness of the Polish economy and to compare it with innovativeness of other counties’ economies. The thesis formulated in the paper is that the level of innovativeness of the Polish economy is low compared to that of other countries and should be higher. In order to prove this thesis, findings of studies presented in academic literature, conducted by Polish and foreign institutions, were analysed and assessed.
THE SOURCES OF FINANCING INNOVATIVE ACTIVITY IN POLAND
Authors: Wieprow Joanna
Published: February 2018

In the modern economy, innovation is a key factor in socio-economic development. Success is likely to reach those companies that build their competitive advantage by implementing innovative projects. Access to financing innovative activities is one of the most important problems of Polish entrepreneurs. There are many programs, both at national level and financed by European Union funds, thanks to the development of innovativeness in Poland is possible. This actions can be taken as part of the implementation of the projects from the Operational Program Intelligent Development, the Operational Program Eastern Poland and Regional Operational Programs. In addition, businesses can use the resources available under the EU Framework Programs, such as Horizon 2020 and COSME. At national level, financial instruments within the innovation support programs are provided by the National Research and Development Center and the Polish Agency for Enterprise Development.
Le deuil dans un monde connecté
Authors: Lachance Jocelyn , Julier-Costes Martin
Published: February 2018

Cet article interroge la transformation des expériences de deuil à l’ère du numérique. En s’appuyant sur la théorie de l’hypermodernité, qui insiste sur les choix qu’impose la présence des technologies de l’information et de la communication dans la vie des individus, les auteurs insistent sur la porosité des frontières spatiales et temporelles des espaces numériques de commémoration du défunt. Cette porosité, qui n’existait pas dans les mêmes termes pour les espaces physiques de commémoration, force les individus à gérer par eux-mêmes la distance à prendre avec ces espaces où sont localisés les morts. Dans ce contexte, l’expérience du deuil se transforme significativement, ce qui se vérifie aussi pour la plupart des expériences de séparation vécues par les jeunes générations de plus en plus connectées.
Faire mémoire sur internet. Les réseaux sociaux et sites de commémoration induisent-ils de nouveaux rapports à la mort ?
Authors: Quinche Florence
Published: February 2018

L’apparition de nouvelles technologies, tout d’abord par les réseaux sociaux sur Internet (texte, image, vidéo, émoticône), puis via les applications pour les téléphones intelligents (Smartphones) a profondément modifié les façons de communiquer, notamment des jeunes générations. Ces nouvelles technologies de la communication ont-elles aussi transformé les rapports à la mort et au deuil ? De nouvelles pratiques sont-elles apparues depuis la démocratisation d’Internet et des téléphones intelligents ? Dans cet article, on s’interroge sur deux types d’expression du deuil, dans un premier temps, sur la façon dont les individus expriment leur deuil dans les réseaux sociaux numériques et d’autre part sur la façon dont la presse et les journalistes créent des mémoriaux pour les victimes lors d’événements traumatiques (attentats, catastrophes).
L’enfant et l’adolescent face à la mort actuelle
Authors: Oppenheim Daniel
Published: February 2018

L’auteur présente d’abord les caractéristiques de la mort telle que la perçoit le sujet humain : elle a rapport à la rupture et à la perte majeures, à la transformation du corps, à la passivité, au doute et à la certitude, aux fantasmes et à l’impensable, à la recherche de sens et de coupables. La mort met hors du temps commun et de la société. Puis l’auteur aborde le mourir. Il développe ensuite ces questions, illustrées de plusieurs vignettes cliniques, dans le contexte de la maladie grave de l’enfant et de l’adolescent. Il décrit plus précisément les caractéristiques spécifiques concernant ce dernier. Une dernière partie montre la nécessité de tenir compte des effets du contexte actuel de guerres et de terrorismes dans la perception de la mort par l’adolescent et même l’enfant.
Être en vérité auprès des adolescents en fin de vie ou qui risquent de mourir
Authors: Derome Muriel , Lefebvre Aurélie , Ferrey Khémi
Published: February 2018

Lorsqu’un adolescent sent ou pense qu’il risque de mourir, il a besoin des autres, d’être en lien, de se rapprocher de ceux qui l’aiment pour lutter contre l’inéluctable sentiment de solitude et d’angoisse de séparation. Il a aussi besoin d’une personne avec qui parler de sa mort. En nous mettant à son écoute et en l’aidant à formuler ses questions, qu’elles soient pleinement élaborées ou qu’elles se cherchent, nous l’aidons à dire, à penser, à ressentir, à verbaliser ses sensations, ses sentiments ou ses émotions. Il peut nous être difficile d’entendre ses tristesses, ses angoisses, ses colères, ses impuissances, son sentiment d’injustice… Notre rôle est de l’accompagner dans son cheminement, même lorsque nous n’avons pas de réponse à lui apporter, même lorsque nous nous sentons impuissants, que nous ne parvenons pas à le rassurer ou que nous avons envie de fuir. Ce qui est important, c’est que nous soyons là afin de recueillir, et si possible, de contenir ses affects négatifs et l’aider à réaliser qu’ils ne le définissent pas. Cela lui permettra alors d’entrer dans une sorte d’acceptation du destin.
Conditions géographiques de mise en liberté et de probation imposées aux manifestants : une atteinte injustifiée aux droits à la liberté d’expression, de réunion pacifique et d’association
Authors: Sylvestre Marie-Eve , Villeneuve Ménard Francis , Fortin Véronique , Bellot Céline , Blomley Nicholas
Published: February 2018

Au cours des dernières décennies, les espaces publics se sont refermés sur les manifestants et les dissidents politiques. Que ce soit par des techniques policières de contrôle des foules, des arrestations de masse ou par l’adoption de règlements visant à encadrer le droit de manifester, ces personnes sont des plus en plus nombreuses à être prises en charge par le système de justice pénale. Dans ce contexte, le recours aux conditions de mise en liberté et de probation ayant des effets géographiques — telles que des conditions de ne pas se trouver dans certains lieux publics, de respecter un certain périmètre ou un couvre-feu, de ne pas s’associer à certains groupes et personnes ou de ne pas participer à un rassemblement public ou une manifestation —, imposées à des moments stratégiques, soulève des questions importantes au regard des libertés d’expression, de réunion pacifique et d’association. Or, on constate qu’il n’y a encore que très peu de contestations de ces conditions. En nous fondant sur un travail de terrain auprès de manifestants assujettis à de telles conditions à Montréal, Toronto et Vancouver et une analyse de la jurisprudence, nous explorons les conséquences de ces conditions sur leur droit à la liberté d’expression, de réunion pacifique et d’association ainsi que différents obstacles à la formulation d’arguments constitutionnels. Outre les contraintes juridiques et celles propres à la pratique du droit criminel, nous suggérons que l’absence de contestation peut être aussi liée à des considérations spatiales et géographiques largement ignorées par les tribunaux. En nous appuyant sur la géographie critique du droit, nous militons en faveur d’une plus grande compréhension spatiale de la liberté d’expression ainsi que des outils utilisés pour la réprimer.
Le contrat de prestations logistiques
Authors: Kolli Kamelia , Rousseau Stéphane
Published: February 2018

L’organisation des activités des entreprises a pris un tournant majeur avec l’apparition de l’entreprise réseau. Celle-ci a éclipsé l’entreprise traditionnelle, hiérarchisée et unifiée dont l’idée fondamentale était l’intégration verticale de toutes les étapes de fabrication. La concurrence est d’une telle férocité qu’il est difficile pour une seule entreprise de supporter les coûts de gestion et de contrôle de toutes ses activités. L’entreprise réseau repose sur la création de relations stratégiques avec des prestataires spécialisés en leur externalisant les activités périphériques qui ne font pas partie de son coeur de métier. Ce nouveau mode d’organisation se matérialise par la conclusion d’un contrat de prestations logistiques qui est dépourvu de qualification et de régime juridiques spécifiques. Sa pleine expression se trouve dans la notion de logistique encore inconnue de la majorité des juristes. Rares sont les juristes qui ont analysé le contrat de prestations logistiques ou qui se sont prononcés de manière irrévocable sur le traitement juridique à lui accorder.

L’article traite des fondements organisationnels et logistiques du contrat de prestations logistiques et s’intéresse également à son traitement juridique au Québec et en France.
El cine más allá de la narración de Lisandro Alonso
Authors: Muñoz Fernández Horacio
Published: February 2018

El cine de Lisandro Alonso está más allá de la narración. El cineasta argentino se centra en los elementos profílmicos de las películas (espacio, tiempo y cuerpo) antes que en la narración y la trama. Su obra invierte la clásica jerarquía de la fábula aristotélica que siempre ha privilegiado el muthos, la racionalidad de la trama, y desvalorizado el opsis, el efecto sensible de la obra. Como Pedro Costa, Albert Serra o Apichatpong Weerasethakul, su cine es más de imágenes que de conceptos, más de espacios que de narración, más de cuerpos que de personajes, de tiempo y espera antes que de tramas y suspense, corporal antes que intelectual, un cine entre la ficción y el documental, entre la imagen y la realidad.
El espacio relativo de Newton y la trasformación de las prácticas escénicas en el teatro moderno
Authors: Pérez Andrade Raúl
Published: February 2018

Entre los siglos XVI y XVIII la revolución científica transformó el esquema cosmológico del universo. Esto, que tuvo consecuencias filosóficas, políticas e incluso artísticas, cambió la noción de espacio y permitió que en el teatro apareciese la caja escénica, una burbuja de espacio vacío y relativo donde se desarrollaba la fábula como si fuera la vida real. El teatro, en su evolución hacia la efectiva construcción de la ilusión escénica, encontró la herramienta filosófica y espacial definitiva que hizo nacer al teatro moderno.
Nauman, Mirecka, Rainer: entre el cuerpo y el gesto / Nauman, Mirecka, Rainer: between body and sign
Authors: Maillo Palma Laura
Published: February 2018

¿Existe un lenguaje físico, que subsuma al lenguaje verbal? Para plantear esta pregunta, en toda su amplitud, primero, nos detendremos en la observación del cuerpo como objeto y sujeto artístico a partir de tres piezas realizadas por el performer Bruce Nauman, la actriz Rena Mirecka y la bailarina Yvonne Rainer, respectivamente.  En lo que sigue, continuaremos adentrándonos en el territorio de lo corpóreo ?ya explorado pero aún inexorable— con la ayuda de Jean-Luc Nancy. Y, finalmente, buscaremos conexiones con el territorio del signo, estudiado por Umberto Eco y por Erika Fischer-Lichte, en su caso, en directa aplicación al campo de la realización escénica.Is there a physical language that subsumes the verbal language? To bring this question up, in all its amplitude, firstly, we will detain in the observation of the body as an artistic object and subject after three pieces carried out by the performer Bruce Nauman, the actress Rena Mirecka and the dancer Yvonne Rainer, respectively. As of what follows, we will continue to get into the territory of the body ?already explored yet still inexorable? with help of Jean-Luc Nancy. And finally, we will search for connections with the territory of the sign, studied by Umberto Eco and Erika Fischer-Lichte, in whose case, in direct application to the performance fields.
Perdidos en la isla de los prodigios: Lost o el abismo alegórico del drama barroco
Authors: Kaiero Claver Ainhoa
Published: February 2018

Tomando como punto de referencia El origen del drama barroco alemán de Walter Benjamin, este artículo establece un paralelismo entre la serie Lost y los planteamientos del drama barroco. Lost no se desarrolla en la Corte, sino en una isla, pero sus personajes se mueven igualmente bajo el signo de la fatalidad que envuelve a príncipes y cortesanos en una era histórica marcada por la catástrofe, la fragmentación y el caos. El universo de Lost se halla en este sentido próximo a la constelación conceptual señalada por W. Benjamin en su interpretación, desde claves teológicas, del drama y la alegoría barroca: Caída- Fragmentación- Ruina- Fatalidad- Abismo Alegórico-Sueño subjetivo-Redención.
Mahagonny: surrealismo y dialéctica de la anarquía. Apuntes desde T.W. Adorno.
Authors: Jaume Teruel Marcelo
Published: February 2018

Este artículo aborda aspectos estéticos y políticos de la ópera Aufstieg und Fall der Stadt Mahagonny (1930), con libreto de Bertolt Brecht y Música de Kurt Weill. Lo hace a partir del texto Mahagonny (1930) de T.W. Adorno, desde la condición surrealista que este le atribuye y a través de elementos musicales y de la trama. Argumentaremos la presencia de una estética de lo político o una política de la estético en la obra, prohibida por los nazis poco después su estreno y mostrada como ejemplo de arte degenerado en una de las primeras exposiciones de Entartete Musik organizada en Düsseldorf en 1938.
O silêncio do tempo do silêncio,
Authors: Pereira Fernando José
Published: February 2018

Dizia-me um amigo, entretanto falecido, que não seriam necessários mais 10 anos para se ter que comprar o silêncio. Não foram precisos, de facto, tantos anos. Aqui estamos em pleno tempo de ausência absoluta do silêncio. O texto tenta questionar o silêncio de forma aparentemente paradoxal, isto é, desde o interior do território das artes visuais. Falar do silêncio como ausência. Como é afirmado no texto: A sombra é, quero crer, uma outra forma de silêncio, desta feita, cromático.
Ética y poética en el juego teatral de Reikiavik de Juan Mayorga
Authors: Martín Lago Zoe
Published: February 2018

Reikiavik es una obra sobre el poder de la imaginación y de la memoria, como afirma su autor, y es también una obra que juega con la identidad individual y colectiva, como afirma su director. Juan Mayorga, que asume tanto la dramaturgia como la dirección escénica de esta pieza, propone un viaje en el que, como voyeurs, asistiremos a la partida de ajedrez que marcó la historia del ajedrez y de la Guerra Fría. La idea de ‘juego teatral’, que caracteriza tanto la estrategia dramatúrgica como la puesta en escena de la pieza, será el hilo conductor que nos lleve a analizar la construcción poética del texto y sus implicaciones éticas, asumiendo que el acto teatral debe abrir un espacio para el diálogo, la reflexión y la crítica no sólo en el marco de la propia obra, sino –lo que es más importante- entre la representación y el espectador.
¿Qué hubiera sido de Edipo sin Aristóteles y sin Freud?
Authors: Gámez Millán Sebastián
Published: February 2018

Edipo rey, de Sófocles, no se hubiera convertido en una tragedia “modélica” si no hubiera gozado de una amplia y reconocida recepción, sobre todo, por parte dos de sus intérpretes más decisivos e influyentes: Aristóteles y Freud. En este artículo analizamos los principales argumentos que ofrece Aristóteles en la Poética: a) la forma más apropiada de reconocimiento; b) el uso del coro; c) la argumentación verosímil; d) la concentración necesaria. Freud descubre en esta tragedia una estructura antropológica del deseo inconsciente de los seres humanos. Por último, expondremos los argumentos filosóficos de Kaufmann: a) la inseguridad radical del ser humano; b) la ceguera; c) la maldición del conocimiento; d) la inevitabilidad de la tragedia; d) el cuestionamiento de la justicia.Oedipus king, by Sophocles, would not have become a “model” tragedy if he had not enjoyed a wide and recognised reception, especially by two of his most decisive and influential interpreters: Aristotle and Freud. In this article we analyze the main arguments that Aristotle offers in the Poetics: a) the most appropriate form of recognition; b) the use of the choir; c) the plausible argumentation; d) the necessary concentration. Freud discovers in this tragedy an anthropological structure of the unconscious desire of the human beings. Finally, we will expose the philosophical arguments of Kaufmann: a) the radical insecurity of the human being; b) blindness; d) the curse of knowledge; d)the inevitability of the tragedy; e) the questioning of justice.
Alegoría barroca e imagen dialéctica: el esfuerzo de Walter Benjamin y Theodor W. Adorno para pensar la dialéctica de la naturaleza y la forma estética
Authors: Vidal Mayor Vanessa
Published: February 2018

El artículo expone en la primera parte la concepción de la forma estética alegoría en El origen del drama barroco alemán de Walter Benjamin y el modo en que Adorno se apropia de esta concepción para construir su idea de historia natural. La segundaparte del artículo se centra en exponer la relación de las alegorías con las imágenes dialécticas de la Exposé de 1935 para La obra de los pasajes y la crítica constructiva que hace Adorno a las mismas en la Carta-Hornberg. El artículo pretende mostrar el esfuerzo común de ambos pensadores para abordar el problema de la forma estética y su relación con la dialéctica y la naturaleza.This article offers in the first part an exposition of the aesthetic form allegory in Walter Benjamin’s ‘The origin of the German tragic drama’ and the way in which Adorno appropriates the allegory to build his idea of natural history. The secondpart of the article focuses on exposing the liaison between allegories and dialectical images of the 1935 Exposé to “The work of the passages” and Adorno´s constructive criticism to them in the Hornberg letter. The article aims to show the common effort of both thinkers to address the problem of the aesthetic form and its relation to dialectics and nature.
Estudios Visuales. Giros entre la crítica de la representación y la ciencia de la imagen
Authors: Martínez Luna Sergio
Published: February 2018

El artículo ofrece un panorama de los Estudios Visuales a partir de una revisión de algunos de los primeros debates en torno a este campo de estudio. Uno de los aspectos más problemáticos de esos Estudios es su consistencia epistemológica como disciplina. Debido a su carácter interdisciplinar a menudo se desplazan hacia otros campos, como el de los Media Studies. Como los Estudios Visuales parten de la idea de que la visión, la mirada y las imágenes son constructos culturales sus desarrollos se orientan hacia la crítica de larepresentación y el análisis social e ideológico. Pero las transformaciones de la cultura visual contemporánea apuntan a un cambio de paradigma en las relaciones entre imágenes y lenguaje. Las imágenes son mediadoras de sí mismas con agencia y fuerza perfomativa. Ello plantea la pregunta por la posibilidad de una ciencia de la imagen capaz de explicar los modos específicos por los que las imágenes producen sentido. Para ello el artículo invita al debate entre los enfoques de los Estudios Visuales anglosajones y los de la Bildwissenschaft alemana.The article provides an overview of the initial debates around Visual Studies based on a review of the initial debates in the field. One of the most challenging points of these Studies is its epistemological consistency as a discipline. Dueto its interdisciplinary character, Visual Studies often shift towards others fields, such as Media Studies. As Visual Studies start from the idea that vision, gaze and images are cultural constructs its development is oriented to the critique ofrepresentation and the social and ideological analysis. However, contemporary visual culture transformations point to a change of paradigm in the relationship between images and language. Images are mediations of themselves with agency and performative force. That raises the question as to whether a science of image able to explain the specific ways in which images produce meaningis possible. To this end, the article invites debate between Anglo-Saxon Visual Studies and German Bildwissenschaft.
Número completo
Authors: LAOCOONTE Revista
Published: February 2018

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A key to quieter seas: half of ship noise comes from 15% of the fleet
Authors: Veirs Scott , Veirs Val , Williams Rob , Jasny Michael , Wood Jason
Published: February 2018

Underwater noise pollution from ships is a chronic, global stressor impacting a wide range of marine species. Ambient ocean noise levels nearly doubled each decade from 1963-2007 in low-frequency bands attributed to shipping, inspiring a pledge from the International Maritime Organization to reduce ship noise and a call from the International Whaling Commission for member nations to halve ship noise within a decade. Our analysis of data from 1,582 ships reveals that half of the total power radiated by a modern fleet comes from just 15% of the ships, namely those with source levels above 179 dB re 1 μPa @ 1 m. We present a range of management options for reducing ship noise efficiently, including incentive-based programs, without necessarily regulating the entire fleet.
Metagenomic analysis of orange colored protrusions from the muscle of Queen ConchLobatus gigas(Linnaeus, 1758)
Authors: Cuartas Jaison H. , Alzate Juan F. , Moreno-Herrera Claudia X. , Marquez Edna J.
Published: February 2018

The endangered marine gastropod,Lobatus gigas,is an important fishery resource in the Caribbean region. Microbiological and parasitological research of this species have been poorly addressed despite its role in ecological fitness, conservation status and prevention of potential pathogenic infections. This study identified taxonomic groups associated with orange colored protrusions in the muscle of queen conchs using histological analysis, 454 pyrosequencing, and a combination of PCR amplification and automated Sanger sequencing. The molecular approaches indicate that the etiological agent of the muscle protrusions is a parasite belonging to the subclass Digenea. Additionally, the scope of the molecular technique allowed the detection of bacterial and fungi clades in the assignment analysis. This is the first evidence of a digenean infection in the muscle of this valuable Caribbean resource.
Vector competence of selected North AmericanAnophelesandCulexmosquitoes for Zika virus
Authors: Dodson Brittany L. , Pujhari Sujit , Rasgon Jason L.
Published: February 2018

Zika virus (ZIKV) is a vector-borne flavivirus that has caused recent outbreaks associated with serious disease in infants and newborns in the Americas.Aedesmosquitoes are the primary vectors for ZIKV, but little is known about the diversity of mosquitoes that can transmit ZIKV in North America. We chose three abundant North American mosquito species (Anopheles freeborni,Anopheles quadrimaculatus, andCulex tarsalis) and one known vector species (Aedes aegypti), fed them blood meals supplemented with a recent outbreak ZIKV strain, and tested bodies, legs, and saliva for infectious ZIKV. ZIKV was able to infect, disseminate, and be transmitted byAedes aegypti. However,Anopheles freeborni,Anopheles quadrimaculatus, andCulex tarsaliswere unable to be infected. We conclude that these species are unlikely to be involved in ZIKV transmission in North America. However, we should continue to examine the ability for other mosquito species to potentially act as ZIKV vectors in North America.
COREMIC: a web-tool to search for a niche associated CORE MICrobiome
Authors: Rodrigues Richard R. , Rodgers Nyle C. , Wu Xiaowei , Williams Mark A.
Published: February 2018

Microbial diversity on earth is extraordinary, and soils alone harbor thousands of species per gram of soil. Understanding how this diversity is sorted and selected into habitat niches is a major focus of ecology and biotechnology, but remains only vaguely understood. A systems-biology approach was used to mine information from databases to show how it can be used to answer questions related to the core microbiome of habitat-microbe relationships. By making use of the burgeoning growth of information from databases, our tool “COREMIC” meets a great need in the search for understanding niche partitioning and habitat-function relationships. The work is unique, furthermore, because it provides a user-friendly statistically robust web-tool (http://coremic2.appspot.com or http://core-mic.com), developed using Google App Engine, to help in the process of database mining to identify the “core microbiome” associated with a given habitat. A case study is presented using data from 31 switchgrass rhizosphere community habitats across a diverse set of soil and sampling environments. The methodology utilizes an outgroup of 28 non-switchgrass (other grasses and forbs) to identify a core switchgrass microbiome. Even across a diverse set of soils (five environments), and conservative statistical criteria (presence in more than 90% samples and FDR q-val <0.05% for Fisher’s exact test) a core set of bacteria associated with switchgrass was observed. These included, among others, closely related taxa from Lysobacter spp., Mesorhizobium spp, and Chitinophagaceae. These bacteria have been shown to have functions related to the production of bacterial and fungal antibiotics and plant growth promotion. COREMIC can be used as a hypothesis generating or confirmatory tool that shows great potential for identifying taxa that may be important to the functioning of a habitat (e.g. host plant). The case study, in conclusion, shows that COREMIC can identify key habitat-specific microbes across diverse samples, using currently available databases and a unique freely available software.
New Method to Calculate the Time Variation of the Force Field Parameter
Authors: Santiago A. , Lara A. , Enríquez‐Rivera O. , Caballero‐Lopez R. A.
Published: February 2018

Galactic cosmic rays (CRs) entering the heliosphere are affected by interplanetary magnetic fields and solar wind disturbances resulting in the modulation of the CR total flux observed in the inner heliosphere. The so‐called force field model is often used to compute the galactic CR spectrum modulated by the solar activity due to the fact that it characterizes this process by only one parameter (the modulation potential, ϕ). In this work, we present two types of an empirical simplification (ES) method used to reconstruct the time variation of the modulation potential (Δϕ). Our ES offers a simple and fast alternative to compute the Δϕ at any desired time. The first ES type is based on the empirical fact that the dependence between Δϕ and neutron monitor (NM) count rates can be parameterized by a second‐degree polynomial. The second ES type is based on the assumption that there is a inverse relation between Δϕ and NM count rates. We report the parameters found for the two types, which may be used to compute Δϕ for some NMs in a very fast and efficient way. In order to test the validity of the proposed ES, we compare our results with Δϕ obtained from literature. Finally, we apply our method to obtain the proton and helium spectra of primary CRs near the Earth at four randomly selected times.
Using WRF‐Urban to Assess Summertime Air Conditioning Electric Loads and Their Impacts on Urban Weather in Beijing
Authors: Xu Xiaoyu , Chen Fei , Shen Shuanghe , Miao Shiguang , Barlage Michael , Guo Wenli , Mahalov Alex
Published: February 2018

The air conditioning (AC) electric loads and their impacts on local weather over Beijing during a 5 day heat wave event in 2010 are investigated by using the Weather Research and Forecasting (WRF) model, in which the Noah land surface model with multiparameterization options (Noah‐MP) is coupled to the multilayer Building Effect Parameterization and Building Energy Model (BEP+BEM). Compared to the legacy Noah scheme coupled to BEP+BEM, this modeling system shows a better performance, decreasing the root‐mean‐square error of 2 m air temperature to 1.9°C for urban stations. The simulated AC electric loads in suburban and rural districts are significantly improved by introducing the urban class‐dependent building cooled fraction. Analysis reveals that the observed AC electric loads in each district are characterized by a common double peak at 3 p.m. and at 9 p.m. local standard time, and the incorporation of more realistic AC working schedules helps reproduce the evening peak. Waste heat from AC systems has a smaller effect (~1°C) on the afternoon 2 m air temperature than the evening one (1.5~2.4°C) if AC systems work for 24 h and vent sensible waste heat into air. Influences of AC systems can only reach up to ~400 m above the ground for the evening air temperature and humidity due to a shallower urban boundary layer than daytime. Spatially varying maps of AC working schedules and the ratio of sensible to latent waste heat release are critical for correctly simulating the cooling electric loads and capturing the thermal stratification of urban boundary layer.