bluuebunny/crossref_metadata_2025_split huggingface dataset:
Contribuições do debate modernidade/pós-modernidade para a compreensão da crise socioambiental: um estudo sobre teses e dissertações em educação ambiental
Authors: Zupelari Maria Fernanda Zanatta , Cavalari Rosa Maria Feiteiro 
Published: December 2020

Diante da crise socioambiental, uma das possíveis formas de compreendê-la é como uma manifestação da crise do conhecimento da sociedade contemporânea ocidental, ou seja, da forma pela qual nossa sociedade conhece, relaciona-se e intervém na natureza. Este texto, produto de uma dissertação, tem como objetivo identificar aspectos da contribuição teórica do debate Modernidade/Pós-Modernidade apresentados nas pesquisas acadêmicas brasileiras sobre Educação Ambiental que se propõem a compreender, contextualizar e explicar a crise socioambiental, e, dessa forma, colaborar para a fundamentação teórica deste campo do conhecimento. A investigação se deu a partir da análise de vinte e quatro dissertações e teses selecionadas no Banco do Projeto Educação Ambiental no Brasil: análise da produção acadêmica (teses e dissertações), e caracterizou-se como pesquisa do tipo estado da arte. A Análise de Conteúdo foi o instrumento analítico utilizado para a interpretação qualitativa. Foram analisadas dezoito dissertações de mestrado e seis teses de doutorado, que foram defendidas entre os anos de 1992 e 2009, em dezenove instituições de ensino e pesquisa, localizadas, concentradamente, nas Regiões Sudeste e Sul do país. Podemos compreender que o debate Modernidade/Pós-Modernidade está presente nas pesquisas sobre Educação Ambiental no Brasil, e que tece relações entre a crise socioambiental e o Paradigma da Modernidade. Aponta-se que, sete trabalhos o fizeram objetivamente, cinco promoveram o debate de forma latente e outros onze preocuparam-se em descrever uma possível transição paradigmática, que estaria ocorrendo entre o paradigma da Modernidade e seu sucessor, como consequência da crise socioambiental. Os trabalhos analisados indicam consenso que a crise ecológica, ambiental ou social é uma crise complexa, que já não pode ser reduzida a fatores da escassez ou finitude de recursos naturais. A experiência de crise, segundo tais pesquisas, está fundamentada em alguns aspectos do Paradigma da Modernidade, tais como: a fragmentação do conhecimento científico moderno; o desencantamento do mundo; o Cristianismo; a racionalidade; o antropocentrismo e o eurocentrismo. A relação entre a crise socioambiental e a crise da Modernidade é caracterizada por esse conjunto de trabalhos pela indissociabilidade entre os dois elementos, e, dessa forma, não pode ser explicada pela rígida relação simplificada de causa-efeito.
L’Afrique dans l’agenda international de réduction des émissions de gaz à effet de serre : quelle transition énergétique pour quel développement ? L’exemple de Madagascar
Authors: Chartier Angéline , Tsayem Demaze Moïse 
Published: December 2020

L’inventaire des programmes énergétiques multilatéraux impliquant l’Afrique montre qu’ils s’inscrivent dans la logique des transferts Nord-Sud, esquissant une transition énergétique non ancrée dans les réalités africaines. Au lieu de faciliter un autre développement, sobre en carbone, cette transition énergétique est une opportunité pour une croissance dite verte, qui ne remet pas en cause la conception mainstream du développement. Le cas de Madagascar illustre le foisonnement de projets énergétiques éloignés de la frugalité des modes de vie de la majeure partie de la population. Classification JEL : Q42, Q43, Q48, N77
Les déterminants de l’accès des ménages à l’énergie dans la Communauté économique des États d’Afrique de l’Ouest (CEDEAO) : approche en données de panel agrégées
Authors: Ky Kenneth 
Published: December 2020

Dans cette étude, nous étudions les effets du niveau de démocratie, de la durée de la colonisation et des énergies renouvelables sur l’accès des ménages à l’énergie dans les pays de la CEDEAO. La méthodologie employée est celle de l’économétrie de panel et repose sur un échantillon composé de 15 pays de la CEDEAO sur la période 1990-2016 pour l’accès à l’électricité et 2000-2016 pour l’accès aux moyens modernes de cuisson. Les résultats mettent en exergue des effets significatifs du niveau de démocratie et du niveau de production de l’électricité renouvelable sur le taux national d’accès à l’électricité. Classiﬁcation JEL : C23, Q40, O55
La régulation des marchés du travail artistique au Cameroun : le cas de l’industrie de la musique
Authors: Dama Dié Marcel 
Published: December 2020

Cet article interroge l’impact des politiques de régulation de l’activité artistique sur la fonction de gain des opérateurs de l’industrie musicale. Parmi les 228 artistes de la base de données utilisée, seuls 36,07 % affirment qu’ils sont satisfaits de leur gain. 35,15 % sont affiliés à la Société civile de gestion des droits d’auteurs, 26,48 % reçoivent des subventions et 54,39 % exercent dans l’informel. Après implémentation d’un modèle probit, il ressort que ces politiques ont des effets mitigés sur la fonction de gain des artistes. Cette conclusion corrobore les arguments des auteurs qui sont contre l’intervention de l’État dans le marché de l’art. Ce résultat contredit l’opinion des auteurs qui prônent le soutien public de l’État envers les artistes. Classification JEL : H20, H42, K11, K23, L51
Vers la caractérisation d’une gestion des ressources humaines bienveillante comme réponse au mal-être au travail. Une étude exploratoire au sein d’une PME labellisée
Authors: Colle Rodolphe , Corbett-Etchevers Isabelle , Defélix Christian , Perea Céline , Richard Damien 
Published: December 2020

Face à la souffrance au travail, les appels à la bienveillance se multiplient. Mais s’agit-il de modifier des comportements, ou bien la bienveillance peut-elle faire système et s’inscrire dans des pratiques de gestion des ressources humaines (GRH) ? Si chercheurs et praticiens en GRH s’intéressent aux effets de la souffrance au travail à travers la prévention des risques psycho-sociaux et la promotion de la qualité de vie au travail, peu de travaux proposent des alternatives aux pratiques de la GRH traditionnelle, pourtant pointée du doigt comme contribuant au mal-être des salariés. Dans cet article, nous proposons une opérationnalisation de la notion de GRH bienveillante. Nous articulons l’étude des pratiques au sein d’une PME avec les travaux de Gomez (2013) autour des dimensions subjective, objective et collective du travail afin de caractériser la GRH bienveillante. A l’issue de notre cas exploratoire, la GRH bienveillante apparaît comme une alternative qui place l’homme au centre de l’organisation.
Le printemps à la portée des gestes. Danser le solo de l’élue dans Le sacre du printemps au XXIe siècle
Authors: Després Aurore 
Published: December 2020

Peu d’œuvres scéniques posent la question climatique et atmosphérique de manière aussi cruciale : après avoir célébré la terre comme pour secouer l’hiver, une communauté acclame « Celle » qui sera in fine sacrifiée pour que le printemps advienne, tel est le drame du Sacre du Printemps (1913) dans lequel convergent toutes les matières de la musique de Stravinski, de la danse de Nijinski et de la scénographie de Roerich. Comment l’élue parviendra-t-elle à retourner la mort qui l’encercle en un geste de naissance afin, qu’en fin, le printemps jaillisse ? Le « printemps » peut-il arriver par des gestes ? Au travers des archives autour du célèbre ballet, notamment la fameuse critique de Jacques Rivière (1913) analysant toute l’atmosphère esthétique du ballet comme un « renoncement à la sauce » ; au travers surtout de la reconstitution historique de la chorégraphie par Dominique Brun intitulée Sacre #2 (2014) et de la danse de l’élue interprétée par Julie Salgues et de ses propres paroles sur ses gestes ; au travers encore de nos réflexions situées au présent d’un printemps 2020 qui ne semble pouvoir advenir, ce texte, analysant les différentes mises en pression jusqu’aux retournements du régime atmosphérique, voudrait contribuer à une théorie des atmosphères qui placerait le concept de geste et celui de geste-milieu, en son centre.
Minha casa não é minha e nem é meu esse lugar
Authors: Maia-Vasconcelos Sandra , Oliveira Débora Maria da Costa 
Published: December 2020

Os idosos nos últimos anos ganharam espaço nas atividades sociais e na pesquisa acadêmica, pois sua perspectiva de vida foi aumentando ao longo dos anos, seja pela Medicina ou pelas condições de preservação da saúde ao longo da vida. Mas os idosos ainda enfrentam o problema da solidão da velhice, em grande parte das famílias em todo o mundo. Embora este artigo não se pretenda ser estatístico, arriscamos colocar aqui em primeiro plano as histórias de pessoas idosas de mais de 70 anos de idade, que são colocadas por suas famílias em casas específicas para idosos, sobre como eles vivenciam essa transição de sua casa para essa casa coletiva, levando em conta as diferenças de entendimento que têm sobre as variáveis família, domicílio, propriedade, objetos, pertencimento e perda. Estabelecemos um estudo comparativo entre duas casas de acolhimento para as pessoas idosas: uma na França e uma segunda no Brasil, ambas instituições mistas – público-privadas. Para a análise das histórias coletadas para esta pesquisa, utilizamos as perspectivas de Roland Barthes e Genette de narratologia, discutindo os conceitos de resiliência de Cyrulnik e de écrouissage (encruamento) de Maia-Vasconcelos. A metodologia de abordagem dos sujeitos foi a abordagem dialógico-narrativa entre Lani-Bayle e Maia-Vasconcelos.
L’insostenibile leggerezza della sostenibilità: i limiti dell’attuale ecopolitica
Authors: Capurso Isabella , Tolusso Emiliano , Marini Andrea , Bonardi Luca 
Published: December 2020

‘Sustainability’ is a ubiquitous term within the political agenda worldwide. The common recognition of such concept has its roots in the Seventies and is the outcome of a cultural process which integrates the ‘limits to the (capitalistic) growth’ in its paradigm. Notwithstanding, the consistency between ‘sustainability’ as a concept and its expected contents is doubtful. A trustful approach towards the technical domain, together with the incorporation of ‘sustainability’ within the market mechanisms, have largely weakened the opportunity for the concept to be disruptive on a political level, locally and globally. The relevant distance between ‘sustainability’ as a term and its actual contents is the object of the present proposal. The underlying ambiguity of the ‘Sustainable Development Goals’ will be provided as a case-study for our critical review.
Wor1‐regulated ferroxidases contribute to pigment formation in opaque cells of Candida albicans
Authors: Dai Baodi , Xu Yinxing , Gao Ning , Chen Jiangye 
Published: December 2020

Candida albicans is a harmless commensal resident in the human gut and a prevalent opportunistic pathogen. A key part of its commensalism and pathogenesis is its ability to switch between different morphological forms, including white‐to‐opaque switching. The Wor1 protein was previously identified as a master regulator of white‐to‐opaque switching in mating type locus (MTL) homozygous cells. The mechanisms by which the dark color of the opaque colonies is controlled and the pimpled surface of opaque cells is formed remain unknown. Candida albicans produces melanin pigment in vitro and during infection. However, the molecular mechanism underlying the regulation of melanin production is unclear. In this study, we demonstrated that ferroxidases (Fets) function as pigment multicopper oxidases and regulate the production of dark‐pigmented melanin in opaque cells. The FET genes presented distinct regulation patterns in response to different extracellular stimuli. In YPD (1% yeast extract, 2% peptone and 2% dextrose)‐rich medium, four of the five FET genes were up‐regulated by Wor1, especially at the human body temperature of 37 °C. In minimal medium with low ammonium concentrations, all five FET genes were up‐regulated by Wor1. However, at high ammonium concentrations, some FET genes were down‐regulated by Wor1. Wor1‐up‐regulated Fets contributed to dark pigment formation in opaque colonies, but not to the elongated shape of these opaque cells. Increased melanin externalization was associated with the pimpled surface of the opaque cells. Melanized C. albicans cells were more resistant to fungal clearance. Deletion of the five FET genes completely blocked melanin production in opaque cells and resulted in the generation of white elongated ‘opaque’ cells. In addition, the up‐regulated Fets are important for defense against oxidant attacks. The functional diversity of Fets may reflect the multiple strategies of C. albicans to rapidly adapt to diverse host niches.
Incorporation of citizens' opinions into the process of earthquake ruins maintenance: A case study of the Great East Japan earthquake ruins in Miyagi Prefecture
Authors: Nishisaka Ryo , Furuya Katsunori 
Published: December 2020

AbstractThe Great East Japan Earthquake struck in March 2011, causing a huge tsunami on the northeastern coast of Japan. In the disaster area, there has been a movement to preserve the damaged structures as earthquake ruins. In this study, the characteristics of establishing consensus were investigated by clarifying how the earthquake ruins have been preserved and removed, and how the opinions of citizens were accounted for in the process of maintaining these sites. The study focused on 21 earthquake ruins in Miyagi Prefecture, which were the closest to the epicenter. We extracted 30 elements from the earthquake ruins maintenance process and created labels for them. From these, we prepared time‐series charts and flowcharts and discussed the relation between entities and citizens' opinions regarding the maintenance process. We clarified four stages pertaining to the preserved ruins and found four types of relationships between the major opinions and treatment decisions. Furthermore, the periods following the earthquake were divided into three phases: pioneering, deliberation, and implementation. Consequently, we suggested that citizens' opinions, coupled with expert advice, could be used to help establish consensus in an incremental manner when making administrative decisions.
Probing Membrane Protein Association Using Concentration‐Dependent Number and Brightness
Authors: Paul Michael D. , Rainwater Randall , Zuo Yi , Gu Luo , Hristova Kalina 
Published: December 2020

AbstractWe introduce concentration‐dependent number and brightness (cdN&B), a fluorescence fluctuation technique that can be implemented on a standard confocal microscope and can report on the thermodynamics of membrane protein association in the native plasma membrane. It uses transient transfection to enable measurements of oligomer size as a function of receptor concentration over a broad range, yielding the association constant. We discuss artifacts in cdN&B that are concentration‐dependent and can distort the oligomerization curves, and we outline procedures that can correct for them. Using cdN&B, we characterize the association of neuropilin 1 (NRP1), a protein that plays a critical role in the development of the embryonic cardiovascular and nervous systems. We show that NRP1 associates into a tetramer in a concentration‐dependent manner, and we quantify the strength of the association. This work demonstrates the utility of cdN&B as a powerful tool in biophysical chemistry.
Tuning Photoinduced Electron Transfer in POM‐Bodipy Hybrids by Controlling the Environment: Experiment and Theory
Authors: Toupalas Georgios , Karlsson Joshua , Black Fiona A. , Masip‐Sánchez Albert , López Xavier , Ben M'Barek Youssef , Blanchard Sébastien , Proust Anna , Alves Sandra , Chabera Pavel , Clark Ian P. , Pullerits Tönu , Poblet Josep M. , Gibson Elizabeth A. , Izzet Guillaume 
Published: December 2020

AbstractThe optical and electrochemical properties of a series of polyoxometalate (POM) oxoclusters decorated with two bodipy (boron‐dipyrromethene) light‐harvesting units were examined. Evaluated here in this polyanionic donor‐acceptor system is the effect of the solvent and associated counterions on the intramolecular photoinduced electron transfer. The results show that both solvents and counterions have a major impact upon the energy of the charge‐transfer state by modifying the solvation shell around the POMs. This modification leads to a significantly shorter charge separation time in the case of smaller counterion and slower charge recombination in a less polar solvent. These results were rationalized in terms of Marcus theory and show that solvent and counterion both affect the driving force for photoinduced electron transfer and the reorganization energy. This was corroborated with theoretical investigations combining DFT and molecular dynamics simulations.
Tensile properties of cristobalite‐filled epoxy resin
Authors: Naito Keishi , Yoshida Michiyuki , Adachi Yoshihide , Kawai Katsuma , Sakurada Osamu , Yashiro Kisaragi 
Published: December 2020

AbstractThe effect of raising and lowering the temperature on the tensile properties of cristobalite spherical particle‐filled epoxy resin (CPTCL/EP) was investigated, and the fabrication of cristobalite fiber and its fiber‐reinforced plastic (FRP) was attempted. For the CPTCL/EP, the process of raising the temperature above the temperature at which the coefficient of thermal expansion of cristobalite suddenly changes (220°C) and then lowering the temperature to room temperature degraded the matrix and caused tensile residual stress in the matrix; however, interfacial adhesion between the matrix and filler improved. In other words, the tensile strength of CPTCL/EP was not reduced by this process, but rather improved. In contrast, the tensile strength of cristobalite fiber‐filled EP (CFIBER/EP) was significantly lower than the theoretical value owing to cracks in the fiber caused by dunting during fabrication of the fiber. Thus, the fabrication method needs to be further improved.
Electoral system, corporate political donation, and carbon emission intensity: Cross‐country evidence
Authors: Muttakin Mohammad Badrul , Mihret Dessalegn Getie , Rana Tarek 
Published: December 2020

AbstractWe examine the association between a country's electoral system and greenhouse gas (GHG) emission intensity of firms and explore whether this association is influenced by corporate political donation. The study draws on the neo‐pluralist theory of power in society to examine how possible corporate influence in the electoral systems relates to corporate environmental performance. Using a cross‐country panel dataset, we find that companies operating in countries using majoritarian electoral systems (MAJ), where corporations have a relatively low influence on election outcomes, are associated with lower GHG emission intensity than those in proportional electoral systems, after controlling for macro‐economic factors and variations in firm characteristics. Further, our findings show that corporate political donation positively moderates the association between MAJ and GHG emission intensity. Our results suggest that corporations are likely to utilise political donations as a component of business strategy to ease the regulatory actions of the state on companies. The results are robust to alternative variable measurements and tests of sensitivity.
Impact of human papillomaviruses (HPV) on recurrence rate and malignant progression of sinonasal papillomas
Authors: Paehler vor der Holte Anja , Fangk Inger , Glombitza Sabine , Wilkens Ludwig , Welkoborsky Hans J. 
Published: December 2020

AbstractSinonasal papillomas are characterized by their potential for frequent recurrences and malignant progression. Currently, the role of human papillomavirus (HPV) infection in sinonasal papillomas is unclear. A study was conducted to elucidate the impact of HPV infection on recurrence and malignant progression of sinonasal papillomas. One hundred and seven patients with 151 tumors could be examined. One hundred and one patients suffered from benign papilloma, mostly inverted papillomas (IP); six patients suffered from carcinomas in situ and squamous cell carcinomas (SCC) ex‐IP. Recurrent IP were more often HPV‐positive than non‐recurrent tumors (38.8% vs. 60%–65%). Low‐risk (LR) HPV infection (especially HPV 6) increased the risk of tumor recurrences (p = 0.0385 andp = 0.0556, respectively). IP and oncocytic papillomas (both lesions are known for their malignant potential) were more often high‐risk (HR) HPV‐positive (15.5% and 16.7%) than fungiform papilloma (which usually does not progress to carcinoma). CIS and SCC ex‐IP displayed higher HPV rates than benign IP (83.3% vs. 38.8%), especially higher rates of HR‐HPV (66.7% vs. 23.8%,p = 0.0415). Data from this study endorse the hypothesis that recurrence of sinonasal papillomas is promoted by LR‐HPV infection and that malignant progression of IP is promoted by HR‐HPV infection.
Efficient Incorporation of Clickable Unnatural Amino Acids Enables Rapid and Biocompatible Labeling of Proteins in Vitro and in Bacteria
Authors: Hadar Dagan , Gelkop Sigal , Vaserman Livne , Amiram Miriam 
Published: December 2020

AbstractSite‐specific incorporation of unnatural amino acids (uAAs) bearing a bioorthogonal group has enabled the attachment – typically at a single site or at a few sites per protein – of chemical groups at precise locations for protein and biomaterial labeling, conjugation, and functionalization. Herein, we report the evolution of chromosomal Methanocaldococcus jannaschii tyrosyl‐tRNA synthetase (aaRS) for the alkyne‐bearing uAA, 4‐propargyloxy‐l‐phenylalanine (pPR), with ∼30‐fold increased production of green fluorescent protein containing three instances of pPR compared with a previously described M. jannaschii‐derived aaRS for pPR, when expressed from a single chromosomal copy. We show that when expressed from multicopy plasmids, the evolved aaRSs enable the production – using a genomically recoded Escherichia coli and the non‐recoded BL21 E. coli strain – of elastin‐like polypeptides (ELPs) containing multiple pPR residues in high yields. We further show that the multisite incorporation of pPR in ELPs facilitates the rapid, robust, and nontoxic fluorescent labeling of these proteins in bacteria. The evolved variants described in this work can be used to produce a variety of protein and biomaterial conjugates and to create efficient minimal tags for protein labeling.
The Perturbed Free‐Energy Landscape: Linking Ligand Binding to Biomolecular Folding
Authors: Abdelsattar Abdallah S. , Mansour Youssef , Aboul‐ela Fareed 
Published: December 2020

AbstractThe effects of ligand binding on biomolecular conformation are crucial in drug design, enzyme mechanisms, the regulation of gene expression, and other biological processes. Descriptive models such as “lock and key”, “induced fit”, and “conformation selection” are common ways to interpret such interactions. Another historical model, linked equilibria, proposes that the free‐energy landscape (FEL) is perturbed by the addition of ligand binding energy for the bound population of biomolecules. This principle leads to a unified, quantitative theory of ligand‐induced conformation change, building upon the FEL concept. We call the map of binding free energy over biomolecular conformational space the “binding affinity landscape” (BAL). The perturbed FEL predicts/explains ligand‐induced conformational changes conforming to all common descriptive models. We review recent experimental and computational studies that exemplify the perturbed FEL, with emphasis on RNA. This way of understanding ligand‐induced conformation dynamics motivates new experimental and theoretical approaches to ligand design, structural biology and systems biology.