bluuebunny/crossref_metadata_2025 huggingface dataset:
Global-regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module
Authors: Chen Xueshun , Yu Fangqun , Yang Wenyi , Sun Yele , Chen Huansheng , Du Wei , Zhao Jian , Wei Ying , Wei Lianfang , Du Huiyun , Wang Zhe , Wu Qizhong , Li Jie , An Junling , Wang Zifa
Published: August 2020

Abstract. Aerosol microphysical processes are essential for the next generation of global and regional climate and air quality models to determine the particle size distribution. The contribution of organic aerosol (OA) to particle formation, mass and number concentration is one of the major uncertainties in current models. A new global-regional nested aerosol model was developed to simulate detailed microphysical processes. The model combined an advanced particle microphysics (APM) module and a volatility basis-set (VBS) organic aerosol module to calculate the kinetic condensation of low volatile organic compounds and equilibrium partitioning of semi-volatile organic compounds in a 3-dimensional (3-D) framework using global-regional nested domain. In addition to the condensation of sulfuric acid, equilibrium partitioning of nitrate and ammonium, and the coagulation process of particles, the microphysical processes of the organic aerosols are realistically represented in our new model. The model uses high-resolution size-bins to calculate the size distribution of new particles formed through nucleation and subsequent growth. The multi-scale nesting allows the model to use high resolution to simulate the particle formation processes in the urban atmosphere in the background of regional and global environments. Using the nested domains, the model reasonably reproduced the OA components from analysis of Aerosol Mass Spectrometry (AMS) measurements by Positive Matrix Factorization (PMF) and the particle number size distribution (PNSD) in Megacity Beijing during a period of about a month. Anthropogenic organic species accounted for 67 % of the OA of secondary particles formed by nucleation and subsequent growth, significantly larger than that of biogenic OA. Over the global scale, the model well predicted the particle number concentration in various environments. The microphysical module combined with VBS simulated the universal distribution of organic components among the different aerosol populations. Model results strongly suggest the importance of anthropogenic organic species in aerosol particle formation and growth at polluted urban sites and over the whole globe under the influence of anthropogenic source areas.
Water vapor density and turbulent fluxes from three generations of infrared gas analyzers
Authors: Kutikoff Seth , Lin Xiaomao , Evett Steven R. , Gowda Prasanna , Brauer David , Moorhead Jed , Marek Gary , Colaizzi Paul , Aiken Robert , Xu Liukang , Owensby Clenton
Published: August 2020

Abstract. Fast-response infrared gas analyzers (IRGAs) have been widely used over three decades in many ecosystems for long-term monitoring of water vapor fluxes in the surface layer of the atmosphere. While some of the early IRGA sensors are still used in these national and/or regional eco-flux networks, optically-improved IRGA sensors are newly employed in the same networks. The purpose of this study was to evaluate the performance of water vapor density and flux data from three generations of IRGAs – LI-7500, LI-7500A, and LI-7500RS (LI-COR Bioscience, Inc., Nebraska, USA) – over the course of a growing season in Bushland, Texas, USA in an irrigated maize canopy for 90 days. The energy balance ratio, which is the sum of turbulent fluxes divided by the sum of surface available energy, was used to assess systematic biases of the IRGA sensors for evapotranspiration (ET). Water vapor density measurements were in generally good agreement, but temporal drift occurred in different directions and magnitudes. Means exhibited mostly shift changes that did not impact the flux magnitudes, while variances of water vapor density fluctuations were occasionally in poor agreement, especially following rainfall events. LI-7500 variances were largest compared to recent LI-7500RS and LI-7500A results manifesting in widened cospectra, especially under unstable and neutral static stability. Agreement among the sensors was best under the typical irrigation-cooled boundary layer, with a 14 % interinstrument coefficient of variability under advective conditions. Generally, the smallest variances occurred with the LI-7500RS, and high-frequency spectral corrections were larger for these measurements resulting in similar fluxes between the LI-7500A and LI-7500RS. Fluxes from the LI-7500 were best representative of growing season ET based on a world-class lysimeter reference measurement but using the energy balance ratio as an estimate of systematic bias corrected most of the differences among measured fluxes.
Comparison of greenhouse gas fluxes and microbial communities from tropical forest and adjacent oil palm plantations on mineral soil
Authors: Drewer Julia , Leduning Melissa M. , Griffiths Robert I. , Goodall Tim , Levy Peter E. , Cowan Nicholas , Comynn-Platt Edward , Hayman Garry , Sentian Justin , Majalap Noreen , Skiba Ute M.
Published: August 2020

Abstract. In Southeast Asia, oil palm plantations have largely replaced tropical forests. The impact of this shift in land-use on greenhouse gas (GHG) fluxes and soil microbial communities remains highly uncertain, mainly due to a relatively small pool of available data. The aim of this study is to quantify differences of nitrous oxide (N2O) and methane (CH4) fluxes as well as soil carbon dioxide (CO2) respiration rates from logged forests, oil palm plantations of different ages and an adjacent small riparian area. The focus of this study is on N2O fluxes, as these emissions are expected to increase significantly due to the introduction of nitrogen (N) fertiliser application. This study was conducted in the SAFE (Stability of Altered Forest Ecosystems) landscape in Malaysian Borneo (Sabah) with measurements every two months over a two-year period. GHG fluxes were measured by static chambers; at the same time soil samples were collected for analysis of the key soil physicochemical parameters and for analysis of microbial biodiversity using next generation sequencing in dry and wet season. N2O fluxes were highly variable across the different sites, with the highest mean flux from OP (46.2 ± 166 µg m−2 h−1 N2O-N) and riparian (31.8 ± 220 µg m−2 h−1 N2O-N) sites, compared to lower fluxes from logged forest (13.9 ± 171 µg m−2 h−1 N2O-N). Methane fluxes were generally small; −2.6 ± 17.2 µg CH4-C m−2 h−1 for OP and 1.3 ± 12.6 µg CH4-C m−2 h−1 for riparian with the range of measured CH4 fluxes largest in logged forests (2.2 ± 48.3 µg CH4- m−2 h−1). Soil respiration rates were larger from riparian areas (157.7 ± 106 mg m−2 h−1 CO2-C) and logged forests (137.4 ± 95 mg m−2 h−1 CO2-C) than OP plantations (93.3 ± 70 mg m−2 h−1 CO2-C) due to larger amounts of decomposing leaf litter. Microbial communities were distinctly different between the different land-use types and sites, bacterial communities linked to soil pH and fungal and eukaryotic communities to land-use. Despite measuring a number of environmental parameters, mixed models could only explain up to 17 % of the variance of measured fluxes for N2O, 3 % of CH4 and 25 % of soil respiration. Scaling up measured N2O fluxes to Sabah using land areas for forest and OP resulted in emissions increasing from 7.6 Mt (95 % confidence interval, −3.0–22.3 Mt) per year in 1973 to 11.4 Mt (0.2–28.6 Mt) per year in 2015 due to the increasing area of forest converted to OP plantations over the last ~40 years.
A Limited Effect of Sub-Tropical Typhoons on Phytoplankton Dynamics
Authors: Chai Fei , Wang Yuntao , Xing Xiaogang , Yan Yunwei , Xue Huijie , Wells Mark , Boss Emmanuel
Published: August 2020

Abstract. Typhoons are assumed to stimulate ocean primary production through the upward mixing of nutrients into the surface ocean, based largely on observations of increased surface chlorophyll concentrations following the passage of typhoons. This surface chlorophyll enhancement, seen on occasion by satellites, more often is undetected due to intense cloud coverage. Daily data from a BGC-Argo profiling float revealed the upper-ocean response to Typhoon Trami in the Northwest Pacific Ocean. Temperature and chlorophyll changed rapidly, with a significant drop in sea surface temperature and surge in surface chlorophyll associated with strong vertical mixing, which was only partially captured by satellite observations. However, no net increase in vertically integrated chlorophyll was observed during Typhoon Trami or in its wake. Contrary to the prevailing dogma, the results show that typhoons likely have limited effect on net ocean primary production. Observed surface chlorophyll enhancements during and immediately following typhoons in tropical and subtropical waters are more likely associated with surface entrainment of deep chlorophyll maxima. Moreover, the findings demonstrate that remote sensing data alone can overestimate the impact of storms on primary production in all oceans. Full understanding of the impact of storms on upper ocean productivity can only be achieved with ocean observing robots dedicated to high-resolution temporal sampling in the path of storms.
Advanced parallel implementation of the coupled ocean-ice model FEMAO with load balancing
Authors: Perezhogin Pavel , Chernov Ilya , Iakovlev Nikolay
Published: August 2020

Abstract. In this paper, we present a parallel version of the finite element model of the Arctic Ocean (FEMAO) configured for the White sea and based on the MPI technology. This model consists of two main parts: an ocean dynamics model and a surface ice dynamics model. These parts are very different in terms of the amount of computations because the complexity of the ocean part depends on the bottom depth, while that of the sea-ice component does not. In the first step, we decided to locate both submodels on the same CPU cores with the common horizontal partition of the computational domain. The model domain is divided into small blocks, which are distributed over the CPU cores using Hilbert-curve balancing. Partition of the model domain is static (i.e., computed during the initialization stage). There are three baseline options: single block per core, balancing of 2D computations and balancing of 3D computations. After showing parallel acceleration for particular ocean and ice procedures, we construct the common partition, which minimizes joint imbalance in both submodels. Our novelty is using arrays shared by all blocks that belong to a CPU core instead of allocating separate arrays for each block, as is usually done. Computations on a CPU core are restricted by the masks of not-land grid nodes and block-core correspondence. This approach allows us to implement parallel computations into the model that are as simple as when the usual decomposition to squares is used, though with advances of load balancing. We provide parallel acceleration of up to 996 cores for the model with resolution 500 × 500 × 39 in the ocean component and 43 sea-ice scalars, and we carry out detailed analysis of different partitions on the model runtime.
COST EFFECTIVE SPHERICAL PHOTOGRAMMETRY: A NOVEL FRAMEWORK FOR THE SMART MANAGEMENT OF COMPLEX URBAN ENVIRONMENTS
Authors: Chiappini S. , Fini A. , Malinverni E. S. , Frontoni E. , Racioppi G. , Pierdicca R.
Published: August 2020

Abstract. The development and urban planning of a modern city, nowadays, should be entrusted on the implementation of methods and techniques which require a management of complex information. The final goal is to support local authorities for the decision making. Finding data that are often heterogeneous but nevertheless connected to each other is useful to create a virtuous management model based on an empirical and objective study system. It will therefore be important to develop a system of data retrieval, analysis and management as accurate as possible, usable by all the actors involved in the governance of the territories. The article focuses on the implementation of an effective workflow for the management of complex urban data, the final goal of such framework, is the creation of a Smart City 3D Platform capable of providing innovative services for tax assessment and collection. In particular, it investigates over the potential of using spherical photogrammetry, to guarantee fast, low-cost and reliable acquisition time. The resulting 3D model has been then georeferenced with GNSS coordinates to ensure the desired precision, while the assessment of the model has been done using laser scanner data as a ground truth. The point cloud obtained from the processing can be managed and edited in a WEBGIS, which merges 2D (cadastral register) and 3D (point cloud) data. The project is the result of the collaboration between the Università Politecnica delle Marche and the Company Andreani Tributi srl, with the aim of collecting information about the advertising structures present in the city of Brescia (Italy) for tax assessment.
Televisão e autogestão: dois caminhos trilhados pelo catolicismo no Brasil
Authors: Souza André Ricardo , Batista Breno Minelli , Placeres Giulliano
Published: August 2020

Com continuada redução de adeptos, o catolicismo permanece como maioria numérica no campo religioso brasileiro. Tal maioria exerce relevante participação em atividades, desde as exclusivamente religiosasaté as seculares, nas áreas de política e economia. Produzido a partir de sistemática revisão bibliográfica, bem como pesquisa documental e análise de dados colhidos em trabalho de campo, o presente artigo objetiva a reflexão acerca de duas frentes distintas de ação política católica contemporânea. É feita uma reflexão acerca das práticas do catolicismo da libertação, seu engajamento político de esquerda e sua participação incisiva no movimento de economia solidária, através da Cáritas Brasileira. Posteriormente, como um contraponto, são analisados os laços políticos existentes entre agentes religiosos e parlamentares para a formação e sustentação das emissoras televisivas carismáticas Canção Nova e TV Século XXI.
A Teologia da Libertação e as mulheres
Authors: Gebara Ivone
Published: August 2020

O presente texto recupera aspectos da história e conceitos da Teologia da Libertação em relação às mulheres. Mostra que apesar dos avanços significativos dessa teologia para refletir a partir dos pobres da América latina, como teologia seguiu encarcerada na instituição católica, repetindo à sua maneira a mesma tradição ocidental formulada no Credo de Nicéia. As teólogas abordando a problemática específica das mulheres e questionando o atrelamento da dogmática a conceitos patriarcais excludentes não encontraram boa acolhida no libertário mundo masculino. Esforços louváveis são reconhecidos, porém considerados insuficientes para transformar velhos conteúdos e velhos poderes. O texto reflete alguns desafios feitos à Teologia da Libertação a partir da introdução da sexualidade como mediação antropológica fundamental e mostra os limites das mediações econômicas e sociais que a Teologia da Libertação priorizou. Em meio ao desenvolvimento dessas questões, delineia alguns caminhos propostos pelas teologias feministas que se desenvolveram fora das instituições clericais e que seguem seu caminho atual com inevitáveis dificuldades.
The Effect of Competitive Anxiety on the Injury Level of Student-Athletes of Karadeniz Technical University
Authors: Sajedi Heidar , Kirkbir Fatih
Published: August 2020

Psychological factors have been significantly confirmed in athletic performance, sports injury prevention, sports rehabilitation, and as an effective means of managing stress and anxiety in competitions. The aim of this study was to investigate the effect of competitive anxiety on the injury level of student-athletes of Karadeniz Technical University.The method of this research is descriptive and correlational. The statistical population includes all athletes of Karadeniz Technical University, which are equal to 320 people. To determine the sample size, Cochran’s sample size estimation formula was used and the number of samples was 175, the gender random sampling method selected. First, to report sports injuries to describe the extent of injuries in the limbs (upper limbs, lower limbs, and trunk) and different parts of the body (joints, muscles, and bones), the report form of sports injuries was used and SCAT questionnaire was used to measure competitive anxiety. We analyzed data using SPSS software. We used regression because of the normality of the data in competitive anxiety tests and the occurrence of sports injuries.The research findings show that the average competitive anxiety of male athletes is 14.11 and the competitive anxiety of female athletes is 14.49. Competitive anxiety also has a significant positive effect on sports injury. The beta coefficient also shows that competitive anxiety predicts 0.33 changes in sports injury.Therefore, it can be said that as the level of competitive anxiety of athletic students increases, so does their level of injury, and to control sports injuries, mental skills should be increased and we should control the competitive anxiety of athletes.
¿Quién defiende a las defensoras? género, etnia y derecho al acceso a la justicia en los tiempos del conflicto ambiental en Chile
Authors: Acevedo-Castillo Natalia , Laso-Samsing Catalina , Norambuena-Avilés Rocío
Published: August 2020

La presente investigación examinó el marco legal y judicial chileno a fin de dilucidar si este garantiza la efectiva tutela de derechos de un grupo en situación de riesgo, como son las mujeres defensoras del medio ambiente. Se contrastaron, tanto las vías disponibles en Chile como el comportamiento exhibido por el Estado en la protección de las defensoras ambientales, con los estándares establecidos en el Derecho Internacional, incluyendo el acuerdo de Escazú, no ratificado por Chile. Se realizó una contextualización teórica del problema y se proyectó la factibilidad de éxito de cada una de las vías judiciales identificadas. Entre las conclusiones, se detectó una falta de acciones judiciales que resguarden apropiadamente los derechos de las mujeres defensoras ambientales y se propuso un modelo de acción alternativa que permita garantizar un efectivo acceso a la justicia.
Acoso político: experiencias de vicealcaldesas en su participación política en el período del 2010-2020
Authors: Fernández-Rojas Katherine
Published: August 2020

Las expresiones de acoso político quedan manifestadas en las entrevistas realizadas a las vicealcaldesas. El acoso político tiene la finalidad de obstruir la participación política de las mujeres en Costa Rica. La participación política de las mujeres ha estado sujeta por una constante lucha por el derecho a acceder al ámbito público, sin embargo, la lucha continúa en garantizar espacios libres de discriminación hacia ellas, con el fin de garantizar su la plena participación y lograr una igualdad real.
Violencia sexual y acoso en la web: evidenciando la falta de tutela judicial efectiva
Authors: Acevedo-Castillo Natalia , Laso-Samsing Catalina , Norambuena-Avilés Rocío
Published: August 2020

Desde un análisis exploratorio, la presente investigación buscó conocer la justiciabilidad de la violencia sexual hacia las mujeres en la web, estudiando el diseño institucional administrativo, legislativo y judicial chileno que influye en la accesibilidad a la justicia y en las garantías efectivas para las víctimas. El texto comienza evidenciando cómo el espacio web resulta un ambiente propicio para la profundización de las desigualdades y violencias que sufren las mujeres en el mundo offline con resultados vulneratorios para sus derechos fundamentales. Luego se estudió el sistema legal y las alternativas que podrían tomar las afectadas para finalizar proponiendo una vía de acción judicial conducente a frenar los efectos de la difusión no consentida de material audiovisual que se refiera a las afectadas.
ANÁLISE DO PERFIL DE DOCENTES USANDO DADOS COLETADOS DA PLATAFORMA LATTES
Authors: Melo Ernani Viriato , Braga Rafhael Menezes
Published: August 2020

A pesquisa acadêmica é extremamente importante para a discussão e difusão de conhecimento e é amplamente incentivada dentro dos Institutos e Universidades Federais. Para o sucesso da pesquisa, o discente muitas vezes precisa de uma contribuição de pesquisadores, da própria instituição, que sejam especialistas em determinados assuntos, entretanto encontrá-los pode ser uma tarefa árdua. Para mitigar essa limitação, este trabalho propõe uma plataforma onde o aluno poderá encontrar informações sobre o perfil dos docentes do Instituto Federal do Triângulo Mineiro (IFTM). Para mapear o perfil docente, foram coletados os currículos Lattes de 544 docentes do IFTM no mês de dezembro de 2018. Ao analisar a formação acadêmica destes docentes, percebe-se que as formações com maior número de docentes são: 66 em Letras, 54 em Agronomia, 48 em Engenharia Elétrica, 46 em Ciência da Computação, 43 em Administração, 39 em Matemática, 37 em Química e 35 em Ciências Biológicas. Analisando a produção científica de 2014 a 2018, percebe-se que as palavras-chave mais usadas no IFTM são: avaliação; ensino e aprendizagem; soja; cerrado; produtividade; educação; irrigação; plantas; ciclagem de nutrientes; resíduos; cultivo; milho; alface; solo; ensino médio; qualidade; professores; leite; química; consumo; água; cultura; dentre outras. VERSÃO PRELIMINAR Palavras-chave: Formação docente; Pesquisa acadêmica; IFTM.
Major Orthopaedic Conference Abstract Publication: An Analysis of Abstracts Accepted for the AAOS Annual Meetings Between 2014 and 2017
Authors: Le Ryan , Anderson Amanda , Chalmers Christen E. , Scolaro John A. , Lee Yu-Po , Bhatia Nitin
Published: August 2020

Introduction:

The American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting provides an opportunity for clinicians to attain the most recent advancements in the orthopaedic field. However, the most recent study analyzing publication rates from the 2001 Annual Meeting determined that only 49% of the podium and poster abstracts were eventually published. The purpose of this study was to determine the publication rate, likelihood of publication based on the presentation format, and time to publication for abstracts presented at the 2014 to 2017 AAOS Annual Meetings.

Methods:

We did a comprehensive search of PubMed and Google Scholar to determine whether abstracts presented in the podium, poster, and scientific exhibit formats from the 2014 to 2017 AAOS Annual Meetings were published in a peer-reviewed journal. Abstract title, authors, and keywords were used to query for publication status and date of publication.

Results:

We analyzed 5,902 abstracts from the 2014 to 2017 AAOS Annual Meetings. The overall publication rate for podium and poster presentations was 69.9%, with individual publication rates at 73.0% and 65.1%, respectively. A higher likelihood of publication in the podium format was noted with odds ratio 1.45 (P< 0.0001). Scientific exhibits displayed a publication rate of 46.9%. Most publications in all formats occurred within 2 years.

Conclusion:

A large increase was noted in the quality of research being presented at the AAOS Annual Meeting. With 69.9% of podium and poster presentations from the 2014 to 2017 Annual Meetings being published in a peer-reviewed journal, clinicians can use the data presented as an up-to-date, adjunct source of guidance for their clinical practices.
Reassessing Cambodia's Patronage System(s) and the End of Competitive Authoritarianism: Electoral Clientelism in the Shadow of Coercion
Authors: Loughlin Neil
Published: August 2020

The dominant literature on Cambodian politics over the past two decades suggested that a mixture of elite and mass clientelism had enabled the hegemonic Cambodian People's Party (CPP) to rule via competitive but authoritarian elections, while lessening its previous reliance on repression
and violence. Such explanations did not predict the upswing in contestation in the country in 2013 and thereafter. Neither do they account for the crackdown that followed. Following literature that draws attention to the tensions in building and maintaining political coalitions under authoritarianism,
and demonstrating the difficulties in maintaining competitive authoritarianism over time, this article draws attention to structural, institutional, and distributional impediments to the CPP leadership in building and maintaining effective reciprocal relations with electoral clients while
simultaneously balancing the interests of the military and other elites at the core of the regime. To make its argument, the article compares weaknesses in the CPP's electoral clientelism with the effectiveness of patronage within the security forces, seen through the lens of Cambodia's experience
of land dispossession. It shows that an extractive and exclusive political economy privileged the interests of regime insiders over potential mass electoral clients precisely during the same period the CPP was supposed to be securing its hold on power via mass electoral clientelism. This further
explains why the regime fell back on repression over reform in response to the upswing in contestation manifest from 2013, and why, despite the failings of its mass patronage project, repression has nevertheless been successful as a strategy for regime survival during a period of heightened
popular contestation.
Migrants, Minorities, and Populism in Southeast Asia Thomas Pepinsky
Authors: Pepinsky Thomas
Published: August 2020

Populists in Southeast Asia generally refrain from invoking anti-migrant and anti-minority sentiments as part of their mobilizational strategies. This differentiates them from "exclusionary" populists in Europe, even though many Southeast Asian countries are diverse societies with long
histories of migration and ethnic chauvinism. Because the categories of peoplehood that were set alongside the onset of mass politics at independence remain salient today, they constrain contemporary Asian populists' rhetorical and mobilizational strategies—even in Southeast Asia's diverse
societies. The Southeast Asian experience reveals the importance of historical sequence in nationalist mobilization and mass incorporation in shaping popular identity, citizenship, and membership in contemporary populism.
Research on new information and communication technologies in education and communication in Poland. Researchers, centers, research problems.
Authors: Wawrzak- Chodaczek Mirosława
Published: August 2020

With the increasing access to the Internet, a new era has begun in the field of human communication, work, education, entertainment, marketing and other areas of human activity. The development of information techniques gives the opportunity to access a huge amount of information that is used to acquire knowledge in various fields of science. The aim of the article is to show new research areas of the media, especially those penetrated by educators.
HISTORY OF PHOTOGRAPHY ON THE EXAMPLE
OF SELECTED PHOTOGRAPHIC TECHNIQUES.
A PHOTOGRAPH AS AN OBJECT
Authors: Wolska Anna
Published: August 2020

In the first part of the paper, the focus
is on historical and technical aspects of the invention
of photography, beginning with the first research
works conducted by J.N. Niépce up to the patenting of
daguerreotype in 1839 by L. Daguerre. In the further
section of the paper emphasis is put on the fast spread of
photography; short profiles of the first Polish photographers
who contributed to promoting photography: J. Giwartowski,
K. Beyer, W. Rzewuski, and M. Strasz, are given. Furthermore,
the early-19th-century discourse between the artistic and
photographic circles is briefly discussed, with some comments
by e.g. E. Delacroix, P. Delaroche, Ch. Baudelaire, L. Daguerre
quoted. Subsequently, the early displays of photographs in
exhibitions and museums are described, e.g. during the 1851
First World Exhibition in London and at the South Kensington
Museum in 1858. What follows this is a presentation of
selected photographic techniques, shown against the events
related to given inventions, e.g.: daguerreotype, salt print,
techniques based on the collodion process, compounds of
dichromates and chromates, calotype, cyanotype. Further,
source reference is given to describe potential threats related
to the degradation, damage, and a possible repair of images
recorded in photographs.
Another section of the paper is dedicated to presenting
artistic movements in photography which formed in the late
19th century. The final part speaks of the questions related
to e.g. storage humidity and temperature, display of photographic
objects that are in museum collections, and pH of
materials and frames; the author also reflects on the need
to digitize collections.
A política do amor: (des)subjetivação dos corpos em Love, de Gaspar Noé
Authors: Guimarães Jonatas Aparecido
Published: August 2020

Este artigo propõe uma leitura do filme Love, de Gaspar Noé, observando-se os movimentos de (des)subjetivação dos personagens, a partir da perspectiva do controle sobre a vida instaurada pela biopolítica. No decorrer de suas cenas, a produção cinematográfica em análise esvazia um possível subjetivismo que poderia ser sugerido pelo título, de forma que o amor é construído como uma relação puramente corporal. Essa dessubjetivação, mais que um aspecto temático, é incorporada à própria composição estética do filme, cujas fotografias e enquadramentos, ao promoverem a hiperexposição de cenas de sexo, operam uma fusão dos corpos que leva à dissolução dos indivíduos. Procura-se demonstrar, dessa maneira, que há nessa construção estética uma encenação da violência implícita nas relações sexuais e na própria ideia de amor, uma vez que ambos são codificados por discursos que pressupõem, em última análise, o controle da vida e da morte. Por fim, procura-se evidenciar que a produção de Gaspar Noé assume uma dimensão política  quando, ao trazer para o palco a hiperexposição da obscenidade, promove uma reconfiguração do sensível que permite entrever possibilidades de reencontro entre o sujeito e o corpo.
Texto, têxtil, tátil, transatlântico: o corpo, o território e a violência encenada pelo vestuário em literaturas de Língua Portuguesa
Authors: Oliveira Ana Luiza Franco de
Published: August 2020

Em muitas leituras literárias, é possível notar que o corpo e o vestuário estão entrelaçados como encenadores de relações sociais através das personagens. Neste artigo, tenho o intuito de convidar tais leitores a observar como três específicas peças de vestuário orquestram cenas de violências sofridas pelos corpos das protagonistas em três diversos territórios demarcados por tempo histórico e recorte social. Para isso, realizo a análise-navegação de três contos: Vavó Xíxi e seu neto Zeca Santos, de Luandino Vieira; Socorrinho, de Marcelino Freire; Branca de Neve, de Lídia Jorge. Assim, tem-se Angola, Brasil e Portugal como localizações geográficas das quais se delineiam os territórios. A bagagem teórica perpassa estudos sobre leitura literária, linguística, relações sociais de poder e força, História, geopolítica e sociologia da moda.
A importância da Matemática Discreta na formação de professores de Matemática
Authors: Fonseca Rubens Vilhena , Figueroa Teodora Pinheiro , Monteiro Andreza Thalia Menezes
Published: August 2020

Esta pesquisa, de cunho teórico-qualitativo, tem como foco principal mostrar a importância da Matemática Discreta na formação de professores de matemática. Para isso realizamos uma pesquisa teórica em trabalhos científicos e, apresentamos algumas discussões sobre questões matemáticas relacionadas com a Aritmética dos Inteiros, as quais comprovam a importância do raciocínio discreto. Nossa investigação tem como foco a seguinte questão de pesquisa: Quais as contribuições da Matemática Discreta na formação de professores? É necessário repensar sobre praxeologias que poderiam favorecer a um tipo de raciocínio por meio do qual os estudantes discorreriam sobre uma maneira de pensar, na perspectiva da Matemática Discreta?A partir de resultados de pesquisas apresentamos um contexto histórico das Equações Diofantinas Lineares e do Algoritmo de Euclides, Conexões Matemáticas: Ensino Superior x Escola Básica e, Teorias Matemáticas relativas a estes saberes, de modo a mostrar que existe a possibilidade de discussões sob o ponto de vista da Matemática Discreta entre o ensino superior e a escola básica na formação de professores. Os trabalhos de pesquisas investigados validaram a nossa proposta.
Die Europäische Wirtschaftsgemeinschaft
Authors: Berens Alexander
Published: August 2020

The empty chair policy of 1965 marked a severe institutional crisis for the then European economic community. Was the cause of divergences in the European conceptions of the two main actors Charles de Gaulle and Walter Hallstein? And what role did the Luxembourg compromise, that resolved this crisis, play? Is there proof of the right of veto, which became common in the coming years? Alexander Berens, who holds a doctorate in history, addresses these issues in depth and deals with other questions.
The species of the bee genus Centris of the “hyptidis group” revisited with the description of Centris (Anisoctenodes) new subgenus (Hymenoptera: Apidae: Centridini)
Authors: Vivallo Felipe
Published: August 2020

In this paper, the species of Centris of the “hyptidis group” are revisited, proposing to recognize them as members of Anisoctenodes subgen. nov., a new subgenus supported by morphological and molecular data. The species included in this new taxon are C. hyptidis Ducke, 1908 (type-species), C. hyptidoides Roig-Alsina, 2000, C. thelyopsis Vivallo & Melo, 2009 and C. anisitsi (Schrottky, 1908), transferring this latter from Centris (Xanthemisia) Moure, 1945. An updated key, information on the type depository, a distribution map, photographs of both sexes as well as of the diagnostic characters of the new subgenus are also provided.
Apresentação do dossiê "Estudos recentes sobre os mundos do trabalho têxtil no Brasil"
Authors: Pereira Neto Murilo Leal , Ribeiro Felipe Augusto dos Santos , Torres Lucas Porto Marchesini
Published: August 2020

Apresentação
Gender, generation, and personal destinies: histories of women and men textile workers in Bahia, Brazil
Authors: Sardenberg Cecilia Maria Bacellar
Published: August 2020

This paper analyzes gender inequalities in the industrial development of Bahia, Brazil, on the basis of work-histories of women and men textile workers in Salvador, residents of a former workers’ villa owned by Fábrica São Braz, a factory which closed in the late 1950s. It compares and contrasts (dis)continuities found along gender and generation lines, showing that while most of these workers were not absorbed by new industry, this was especially true for the older generation and particularly marked in the case of women: 1) women worked at the less skilled occupations in the mill, many of which became obsolete with the production of synthetic textiles; 2) while traditional industries had relied primarily on the employment of women, new industry employed mainly men; and 3) jobs away from their neighborhood made the reconciling of wage work and domestic activities more difficult for women. They were left with few options but that of resorting to the so-called ‘informal sector’, becoming laundresses, domestic servants, petty-commodity producers, operators of food stands, and the like. This break with their condition as industrial workers would be extended to the succeeding generations of women in the community. The daughters of former factory workers are no longer factory workers themselves. These findings show that the divide resulting from the workings of patriarchal gender ideology has sharply imprinted the history of textile workers in Bahia. This calls for efforts towards the ‘gendering’ of Brazilian labor history. Keywords: Textile Workers. Gender Divide. Deskilling of Industrial Workers.        Labor History. Bahia, Brazil.
Nas tecituras do trabalho operário: a produção têxtil e a vida incerta na Fábrica Carmen em Fernão Velho – AL (anos 1940 – 1960)
Authors: Tavares Marcelo Góes
Published: August 2020

Este artigo traz como proposta, narrar a experiência histórica do trabalho operário no ramo têxtil em Fernão Velho, Alagoas. Essa localidade faz parte de um território fabril formado pela Fábrica Carmen, outrora Companhia União Mercantil, e sua vila operária. Nessa narrativa, são recuperados historicamente a produção têxtil, o trabalho operário, as condições de trabalho na fábrica, as representações de classe, e movimentos de resistência de trabalhadores. Como corpus documental, são utilizados relatos de operários registrados através da metodologia da história oral, relatórios da fábrica publicados no diário oficial de Alagoas, fotografias, processo trabalhista, matérias de jornais, atas de sindicato, entre outras. As análises apresentadas transitam em estudos sobre poder, cultura, memória e história, história política e do trabalho. Palavras-chave: Trabalho operário. Produção têxtil. Resistências. Fábrica Carmen.
Efecto espejo: carencias en la otra mitad de los directivos en las organizaciones
Authors: Lara Pablo
Published: August 2020

Promocionar, ascender a una persona dentro de una organización para optar a un cargo de dirección, conlleva ciertos riesgos inherentes en el nombramiento, y que son difíciles de ver a simple vista para la persona elegida.
¿Cómo trasladar la comunicación corporativa en Instagram?
Authors: Gatnau Aina
Published: August 2020

Una encuesta de Google revela que el 90% de nuestras interacciones con los medios de comunicación las facilitan las pantallas: móvil, tableta táctil, portátil o televisión. Las pantallas, pues, ocupan buena parte de nuestra vida, y llegamos incluso a pasar cuatro horas de nuestro tiempo libre saltando y simultaneando entre ellas.
Plastid transit peptides—where do they come from and where do they all belong? Multi-genome and pan-genomic assessment of chloroplast transit peptide evolution
Authors: Christian Ryan W. , Hewitt Seanna L. , Nelson Grant , Roalson Eric H. , Dhingra Amit
Published: August 2020

Subcellular relocalization of proteins determines an organism’s metabolic repertoire and thereby its survival in unique evolutionary niches. In plants, the plastid and its various morphotypes import a large and varied number of nuclear-encoded proteins to orchestrate vital biochemical reactions in a spatiotemporal context. Recent comparative genomics analysis and high-throughput shotgun proteomics data indicate that there are a large number of plastid-targeted proteins that are either semi-conserved or non-conserved across different lineages. This implies that homologs are differentially targeted across different species, which is feasible only if proteins have gained or lost plastid targeting peptides during evolution. In this study, a broad, multi-genome analysis of 15 phylogenetically diverse genera and in-depth analyses of pangenomes from Arabidopsis and Brachypodium were performed to address the question of how proteins acquire or lose plastid targeting peptides. The analysis revealed that random insertions or deletions were the dominant mechanism by which novel transit peptides are gained by proteins. While gene duplication was not a strict requirement for the acquisition of novel subcellular targeting, 40% of novel plastid-targeted genes were found to be most closely related to a sequence within the same genome, and of these, 30.5% resulted from alternative transcription or translation initiation sites. Interestingly, analysis of the distribution of amino acids in the transit peptides of known and predicted chloroplast-targeted proteins revealed monocot and eudicot-specific preferences in residue distribution.
Growth parameter k and location affect body size responses to spatial protection by exploited rockfishes
Authors: McGreer Madeleine , Frid Alejandro , Blaine Tristan , Hankewich Sandie , Mason Ernest , Reid Mike , Kobluk Hannah
Published: August 2020

For many fish taxa, trophic position and relative fecundity increase with body size, yet fisheries remove the largest individuals, altering food webs and reducing population productivity. Marine reserves and other forms of spatial protection can help mitigate this problem, but the effectiveness of these management tools may vary interspecifically and spatially. Using visual survey data collected on the Central Coast of British Columbia, for 12 species of exploited rockfish we found that body size responses to spatial fishery closures depended on interspecific variation in growth parameter k (the rate at which the asymptotic body size is approached) and on location. For two closures, relative body sizes were larger at protected than at adjacent fished sites, and these differences were greater for species with lower k values. Reduced fishery mortality likely drove these results, as an unfished species did not respond to spatial protection. For three closures, however, body sizes did not differ between protected and adjacent fished sites, and for another closure species with higher k values were larger at fished than at protected sites while species with lower k values had similar sizes in both treatments. Variation in the age of closures is unlikely to have influenced results, as most data were collected when closures were 13 to 15-years-old. Rather, the lack of larger fish inside four of six spatial fishery closures potentially reflects a combination of smaller size of the area protected, poor fisher compliance, and lower oceanographic productivity. Interspecific differences in movement behavior did not affect body size responses to spatial protection. To improve understanding, additional research should be conducted at deeper depths encompassing the distribution of older, larger fish. Our study—which was conceptualized and executed by an alliance of Indigenous peoples seeking to restore rockfishes—illustrates how life history and behavioral theory provide a useful lens for framing and interpreting species differences in responses to spatial protection.
In situ SEM/EDS compositional characterization of osteocytes and blood vessels in fossil and extant turtles on untreated bone surfaces; different preservational pathways microns away
Authors: Cadena Edwin-Alberto
Published: August 2020

Osteocytes and blood vessels are the main cellular and tissue components of the bone tissue of vertebrates. Evidence of these soft-tissue microstructures has been widely documented in the fossil record of Mesozoic and Cenozoic turtles. However, all these studies have characterized morphologically and elementally these microstructures via isolation from the fossilized bone matrix where they were preserved or in ground sections, which could raise skepticism about the results due to potential cross-contamination or reagents effects. Fossil turtle bones from three different localities with distinct preservation environments and geological settings, including Mongolemys elegans from the Late Cretaceous of Mongolia, Allaeochelys crassesculpta from the Eocene of Germany, and a podocnemidid indet. from the Miocene of Colombia are studied here. Bone from two extant turtle species, Lepidochelys olivacea, and Podocnemis lewyana, as well as a commercial chicken Gallus gallus were used for comparisons. Scanning Electron Microscopy-Energy Dispersive Spectroscopy analyses performed directly on untreated fresh surfaces show that osteocytes-like in the fossil turtle bone are mostly composed of iron and manganese. In contrast, the in situ blood vessels-like of the fossil turtles, as well as those from the extant taxa are rich in elements typically organic in origin (carbon and nitrogen), which are absent to minimally present in the surrounding bone or rock matrix; this suggests a possible endogenous composition for these fossil structures. Also, the results presented here show that although originally both (osteocytes and blood vessels) are organic soft components of bone as evidenced in the extant turtles and chicken, they can experience completely different preservational pathways only microns away from each other in the same fossil bone.
Analysis of Household Participation in Urban Agriculture: Empirical Evidence from Urban Households in Kogi State, Nigeria
Authors: Ibrahim M. K. , Haruna M. , Shaibu U. M.
Published: August 2020

The study analysed household participation in urban agriculture in Kogi State, Nigeria. It specifically; described the socioeconomic characteristics of the respondents; determined the factors that influence household participation in urban agriculture; and determined the effect of urban agriculture on household income. Simple random sampling technique was used to select 60 respondents each from four purposively selected peri-urban/urban centres in Kogi State: Lokoja (Zone A), Anyigba (Zone B), Okene (Zone C), and Idah (Zone D). Primary data obtained through questionnaire administration were analysed using descriptive and inferential statistical tools. Findings from the study revealed that 61.7% of the respondents were males and a mean age of 43 years was recorded. Married (90%) household heads dominated the respondents with a mean household size of 7 members. Education (β = -0.862), dependent (β = 1.904), marital status (β = 2.544), access to sufficient food (β = -2.495), employment status (β = 1.307) and access to land (β = 0.505) statistically influenced household participation in urban agriculture, while the OLS output indicated that urban farm income (β = 17.539) and non-farm income (β = 848.798) had significant effect on total household income. The study concluded that urban agriculture has the potential of improving the livelihood of urban dwellers. The study therefore recommends the integration of urban agriculture into urban development plan; easy access to land and other production inputs.
Ethnobotanical Survey and In vivo Assessment of the Antimalarial Activities of a Locally Used Medicinal Plant (Senna occidentalis) for “Malaria Suspected” Fever in Potiskum and Nangere Local Government Areas of Yobe State
Authors: Daskum Abdullahi Muhammad
Published: August 2020

Malaria is a life threatening infectious disease that has affected economic development in many parts of the world. Although preventable, malaria has claimed the lives of thousands of individuals in endemic African countries. Antimalarial drug resistance, lack of vaccines in clinical use as well as complexities of malaria parasite genomes remains a serious threat to malaria eradication efforts. The search for antimalarials from plant sources has yield significant success in drug discovery approaches. The specific objective of this study is to establish the acute toxic effect and antiplasmodial efficacy of crude methanolic leaf extract of Senna occidentalis in an in vivo assay. The four (4) days suppressive test was used in Swiss mice experimentally infected with chloroquine sensitive (CQS) Plasmodium berghei (ANKA). Results obtained revealed no lethality nor any sign of acute toxic reactions following the administration of 2000 mg/kg body weight of the extract. Percent reduction of parasite growth obtained was observed to be dose dependent in all groups treated with the herbal extract and ranges between 66% and 73%. Relative to the negative and positive control groups, a significant reduction in parasitaemia (P≤ 0.01) was observed in all groups treated with the plant extracts. A gradual increase in body weight was observed in extract treated groups throughout the period of the investigation. The antiplasmodial efficacy observed may well be attributed to the presence of alkaloids, flavonoids and other important phytochemicals present. S. occidentalis is therefore, considered a good candidate source for development of novel antimalarial drugs.