bluuebunny/crossref_metadata_2025_split huggingface dataset:
Uma agenda para o babaçu
Authors: Teixeira Marcos Alexandre 
Published: October 2023

O presente artigo aborda a atual estrutura da cadeia produtiva do óleo de Babaçu (Orgbnya sp.), analisando sua configuração e seu desenvolvimento histórico no território nacional. São apresentados fatores de crescimentos não aproveitados que poderiam, pela exploração de parcerias estratégicas, proporcionar um novo patamar de desenvolvimento, não só para este ramo agroindustrial em particular, mas também para o surgimento de novas atividadesligadas à exploração auto-sustentada desta palmeira. Ao longo do artigo, são analisadas algumas das experiências atuais de sucesso, procurando resgatar os fatores que alavancaram essas iniciativas. Conclui-se que há a necessidade de se trabalhar em torno do fomento de parcerias estratégicas entre os diferentes elementos da cadeia produtiva, procurando incluir aqueles agentes que, no momento, estão sem participação ativa. Este trabalho passa pela formação de alianças cooperativas, cujas possibilidades encontram-se brevemente listadascomo recomendações. Destas, destaca-se o fomento a um maior intercâmbio, a ser realizado embases periódicas, entre os principais agentes (produtores/coletores, indústrias, representantes domercado, fornecedores de equipamentos, centros de pesquisa e desenvolvimento, e também o Estado), assim como valorização dos subprodutos possíveis de produção com base na cadeia produtiva do óleo, a exemplo do carvão de endocarpo e farinha amilácea.
Cenários de Mudanças Climáticas e Agricultura no Brasil: Impactos Econômicos na Região Nordeste
Authors: Domingues Edson Paulo , Magalhães Aline Souza , Ruiz Ricardo Machado 
Published: October 2023

Analisa o impacto de mudanças climáticas no Nordeste a partir de estimativas das implicações sobre a disponibilidade de terras aptas para a atividade agrícola em um conjunto de cultivos. Estas informações, baseadas em cenários de aquecimento global do International Panel of Climate Change (IPCC), alimentam um modelo inter-regional de equilíbrio geral computável para o Brasil, o que possibilita desenvolver uma análise em vários aspectos das implicações econômicas regionais desse fenômeno. Os resultados encontrados indicam um elevado potencial de perdas econômicas no Nordeste, especialmente nos estados mais pobres, apontando para a necessidade de políticas de mitigação e de controle de emissões. Na ausência destas políticas, os efeitos econômicos sobre o emprego, por exemplo, podem gerar impactos significativos sobre os fluxos migratórios, repercutindo na forma de elevada pressão sobre os serviços de infraestrutura urbana das metrópoles do Nordeste e de outras regiões do país.
Políticas Estaduais de Atração de Investimentos Baseadas em Isenção Fiscal: Uma Análise do Estado do Ceará de 1995 a 2008
Authors: Cardozo Soraia Aparecida 
Published: October 2023

Este artigo tem o intuito de responder às seguintes questões: diante do desmantelamento das políticas nacionais que tinham como objetivo o desenvolvimento regional e a superação das heterogeneidades regionais, qual é a capacidade dos incentivos fiscais e financeiros estaduais alterarem a divisão inter-regional do trabalho e mudar especializações produtivas regionais? Os incentivos fiscais necessariamente mudam a participação da atividade industrial estadual na produção nacional? Guardam relação direta com as alterações nas estruturas produtivas estaduais? Os dados que subsidiaram a análise ilustram que os incentivos fiscais no Estado do Ceará não necessariamente contribuíram para a desconcentração regional da atividade industrial e, além disso, muitas atividades que foram contempladas pelos incentivos fiscais e apresentaram desconcentração espacial foram influenciadas também, em grande medida, por outros condicionantes, situação verificada principalmente para as atividades produtoras de Bens de Consumo Não Duráveis. Mostra que a política de atração de empresas do Estado do Ceará, desde os anos 1990, não foi capaz de modificar a participação do estado no Valor da Transformação Industrial, nem de promover mudanças significativas na estrutura produtiva estadual no sentido de uma maior diversificação e maior complexidade de sua estrutura industrial.
Wage differentials between the metropolitan regions of Belo Horizonte and Salvador: a discussion based on the blinder-oaxaca decomposition
Authors: Cirino Jader Fernandes , De Lima João Eustáquio 
Published: October 2023

This study quantifies and explains the difference in hourly wages between the metropolitan regions of Belo Horizonte (RMBH) and Salvador (RMS). The choice of these two regions was due to the interest inverifying how the difference of economic dynamism between the regions would impact the labor market is return. The method employed was the Blinder-Oaxaca decomposition. As expected, the results showed that the income per hour in RMBH were on average higher than those found in the RMS, due to greater economic concentration and agglomeration of the former region when compared to the latter.
Comportamento da distribuição do valor da produção vegetal entre os estabelecimentos agropecuários: uma análise dos dados dos censos de 1995/96 e 2006
Authors: De Souza Paulo Marcelo , Ney Marlon Gomes , Fornazier Armando , Ponciano Niraldo José 
Published: October 2023

Com a pesquisa, buscou-se analisar as mudanças na distribuição do valor da produção entre os estabelecimentos agropecuários, ocorridas entre os últimos dois censos. Para caracterizar essa distribuição, foram calculados o percentual do valor da produção obtido nos 25 e 50% menores estabelecimentos, o percentual da produção obtido nos 5 e 10% maiores estabelecimentos, o valor médio produzido por estabelecimento e o índice de concentração. Os resultados evidenciaram que a distribuição da produção é concentrada, com um percentual reduzido de estabelecimentos respondendo pela maior parcela da produção, reflexo da estrutura fundiária concentrada e do viés da política agrícola, favorável aos maiores produtores. Essa distribuição se concentrou ainda mais entre os dois censos, devido ao crescimento da importância dos maiores estabelecimentos na produção das lavouras temporárias, segmento que, devido a avanços tecnológicos, parece ter se tornado especialmente atrativo para esse grupo de produtores.
Convergência ou divergência no desenvolvimento? Um estudo com clusters para o Sudeste e o Nordeste do Brasil, 1990-2010
Authors: De Assis Renato Silva , Marques André de Mattos 
Published: October 2023

A abertura econômica e a estabilização dos preços no Brasil concorreram para o aumento do bem-estar no País desde meados dos anos 1990. Nessa direção, a análise de indicadores sociais e econômicos das últimas três décadas evidencia que houve melhoria em uma série de indicadores isolados tanto no Sudeste – região mais desenvolvida - como no Nordeste - região menos desenvolvida. Quando considerados conjuntamente, porém, esses indicadores podem fornecer uma imagem mais compacta do País e sua evolução no tempo. A partir de uma base de dados de vinte variáveis, o objetivo principal do estudo foi verificar se há indícios de convergência ou divergência em cinco dimensões do desenvolvimento entre as duas regiões no período de 1990 a 2010. Os resultados sugerem que há indícios de convergência dentro do cluster do Nordeste, porém, a distância entre as duas regiões não se reduziu. Os resultados do teste de Wilcoxon indicam que não houve mudanças estatisticamente significativas na distância entre os estados. Dentro das duas regiões os padrões de desenvolvimento se tornaram mais homogêneos, porém, as duas regiões continuam com padrões distintos de desenvolvimento.
EFICIÊNCIA DOS GASTOS PÚBLICOS EM EDUCAÇÃO BÁSICA DOS MUNICÍPIOS NORDESTINOS: 2007 A 2013
Authors: Almeida Aléssio Tony Cavalcanti de , Cunha Margarida Noélia de Aguiar 
Published: October 2023

Este trabalho objetiva analisar os gastos públicos dos municípios do Nordeste brasileiro por meio da mensuração da eficiência técnica dos recursos em Educação Básica. A abordagem Análise Envoltória de Dados (DEA) com fronteira sequencial e 1.000 reamostragens bootstrap foram aplicados aos dados de insumos financeiros e resultados educacionais. Os principais resultados da pesquisa mostram que o gasto público em educação dos municípios no período apresentou um crescimento bem superior as taxas observadas para os resultados escolares. Em média, o nível de eficiência entre 2007 e 2013 foi de 71%, sendo que foi verificado um comportamento cíclico da evolução desse indicador. Os municípios mais eficientes da região Nordeste estão situados no estado do Ceará, enquanto aqueles com piores desempenhos relativos estão localizados na Bahia. Por fim, com base nas unidades de referência da região, identificou-se a possibilidade de ampliação dos resultados educacionais dos municípios, inclusive com a redução dos gastos públicos na área.
THE EFFECTS OF THE CHILD LABOR LAW IN THE BRAZILIAN NORTHEAST REGION
Authors: Amorim Domingos Isaias Maia , Costa Edward Martins , Khan Ahmad Saeed , Tabosa Francisco José Silva , Castelar Pablo Urano de Carvalho 
Published: October 2023

Considered one of the most advanced acts of legislation concerning child labor in the world, Brazilian legislation on the matter is regulated in the country’s 1988 Federal Constitution, in the Consolidation of Labor Laws and in the Statute of the Child and the Adolescent. Businesses and/or individuals who hire workers under the age of 16 are subjected to penalties under those laws. Thus, this work uses a quasi-experiment generated from the Brazilian legislation in order to capture the effects of the child labor law as it is applied in the Northeast region of Brazil. Using data from the Continuous National Household Survey of 2017, we estimate the local average treatment effects obtained through regressions with discontinuity. The results indicate there is not a considerable influence of the law on child labor, even though a small reduction in hours worked can be observed, in 1.7 hour, 1.3 hour and 1.7 hour, respectively, when analyzing the Northeast region of Brazil as a whole, and analyzing the Urban and Rural areas separately. Was also verified that by 2017 there are more than 103,000 children and adolescents under the age of 16 who are in the job market of the Northeast region of Brazil.
Tiny Windows in Reticular Nanomaterials for Molecular Sieving Gas Separation Membranes
Authors: Smirnova Oksana , Ojha Subham , De Ankita , Schneemann Andreas , Haase Frederik , Knebel Alexander 
Published: October 2023

AbstractThe current state of reticular chemistry enables the synthesis of a wide range of highly porous nanomaterials for gas separation, including metal‐organic frameworks (MOFs), covalent organic frameworks (COFs), porous organic cages (POCs), metal‐organic cages (MOCs), and polyhedra (MOPs). This perspective focuses on membrane technology, a key player in energy‐efficient gas separations. It explores the world of reticular materials, taking a glance at tiny pore windows with narrow openings, which are ideal for high‐resolution molecular sieving, and how to design them. Promising concepts in this field are membranes consisting of neat materials, but also mixed matrix membranes, where polymeric films incorporate reticular fillers, creating cost‐efficient membranes. This article sheds light on the potential use of reticular materials as membrane components. The reticular synthesis of MOFs offers the ability to separate gas molecules with minimal size differences effectively. For COFs, the crucial factor lies in reducing their pore size, preferably through functional group modifications. Porous cage compounds can achieve fine distribution from homogeneous dispersions into polymers making them excellent candidates for mixed matrix membranes. This perspective provides strategies and guiding principles for the future of reticular nanomaterials‐based membranes, addressing the pressing need for advanced and efficient separation technologies.
Controlling the Water Diffusion Inside Smart 4D‐Printed HBC by Functional Channels
Authors: Fruleux Thomas , Correa David , Castro Mickael , Poppinga Simon , Wang Kui , Le Duigou Antoine 
Published: October 2023

AbstractHydromorph Biocomposites (HBCs) are self‐shaping materials whose motions are actuated by moisture‐induced swelling of natural fibers and designed through a multilayered bioinspired material architecture. Their reactivity, i.e., kinetic of actuation, is relatively slow and is currently limited by the moisture transport. Porosities are commonly assumed to be a defect in composite materials that results in reduced mechanical performance. However, in biological structures porosities within the tissue architecture provide essential functions (lightness, moisture transport, and actuation). Inspired by biological mesostructures, a 3D‐printing process is applied to precisely define the architecture of an HBC that incorporates functional porosities, i.e., channels. The purpose is to improve the moisture‐induced actuation reactivity without compromising any other functional performance. First, 3D‐printed wood fiber‐reinforced biocomposites are designed with various channel content (from 0% to 10%), size (from 0.5 to 3.0 mm), and distribution patterns across the samples. Immersed in water, these novel HBCs with tailored channel structures fasten the water transport by triggering capillary transport. The presented results demonstrate that implementing functional channels in the mesostructure of 4D‐printed HBC bilayers makes it possible to achieve an eight‐fold improvement in the speed of shape‐change transformation while enabling new capabilities to functionally tune the morphing performance of HBCs.
Thiolated Poly‐ and Oligosaccharide‐Based Hydrogels for Tissue Engineering and Wound Healing
Authors: Noreen Sobia , Bernkop‐Schnürch Andreas 
Published: October 2023

AbstractDue to thiolation of poly‐ and oligosaccharides numerous favorable properties for tissue engineering and wound healing can be introduced. Poly‐ and oligosaccharides can be thiolated via hydroxyl‐to‐thiol conversions or the covalent attachment of sulfhydryl ligands to hydroxyl, carbonic acid or amino groups on them. Since thiolated poly‐ and oligosaccharides can cross‐link via disulfide bonds, they form stable 3D networks with defined microarchitecture, stiffness, elasticity, and degradability. Furthermore, thiol groups can enhance cell adhesion since cells exhibit cysteine‐rich subdomains on their surface that form disulfide bonds with them. Sulfhydryl groups can also participate in cell signaling pathways favoring various cellular processes like proliferation, migration, spreading, and differentiation that are beneficial for tissue engineering and wound healing. In addition, a controlled release of active ingredients such as growth factors being bound via disulfide bonds to thiolated poly‐ and oligosaccharides can be achieved via thiol/disulfide exchange reactions. Over the last two decades, the number of thiolated poly‐ and oligosaccharides such as thiolated hyaluronic acid and thiolated chitosan used for tissue engineering and wound healing has increased tremendously. Within this review, an overview is provided about the chemistry of thiolated poly‐ and oligosaccharides, their key properties, applications and performance in clinical trials and as marketed products.
Boosting Zinc‐Ion Batteries with Innovative Ternary Electrolyte for Enhanced Interfacial Electrochemistry and Temperature‐Resilient Performance
Authors: Qiu Yanbin , Zheng Xinyu , Zhang Ran , Lin Qingqing , Li Mengchao , Luo Jing , Yang Sisheng , Liu Zheyuan , Wang Qian , Yu Yan , Yang Chengkai 
Published: October 2023

AbstractThe practical application of Zn‐ion batteries (ZIBs) faces several challenges, particularly regarding poor reversibility and the reactivity of water in the electrolytes across a wide temperature range. Herein, this study presents the design of a ternary electrolyte with significant intermolecular interactions based on tetrahydrofurfuryl alcohol (THFA), H2O, and Zn(OTf)2 to address these challenges from −40 to 60 °C. The ether alcohol compound THFA effectively mitigates the side reactions about water, by disrupting and suppressing the reactivity of the dominant water‐based clusters. Through experimental and theoretical investigations, the structural and mechanistic insights of ternary solvation clusters are uncovered. The hydrogen‐bond‐induced interactions of THFA facilitate the participation of OTf− in solvation clusters and bidentate chelation coordination with Zn2+ ensures the formation of lean‐water solvation clusters. Furthermore, the interfacial electrochemistry on the Zn surface is also regulated to exhibit a preferential layer‐by‐layer (0 0 2) oriented deposition with a stable solid electrolyte interface (SEI). As a result, The Zn||VO2 battery using ternary electrolyte maintains a capacity of 237.5 mAh g−1 with an 86.71% retention after 500 cycles at 60 °C and 3 A g−1, while it exhibits stable cycle even at −40 °C over 200 cycles with almost no capacity decrease.
Decellularization‐Based Modification Strategy for Bioactive Xenografts Promoting Tendon Repair
Authors: Jin Haocheng , Kang Yuhao , Gao Haihan , Lin Zhiqi , Huang Dongcheng , Zheng Zhi , Zhao Jinzhong , Wang Liren , Jiang Jia 
Published: October 2023

AbstractXenografts have emerged as a promising option for severe tendon defects treatment. However, despite undergoing decellularization, concerns still remain regarding the immunogenicity of xenografts. Because certain components within the extracellular matrix also possess immunogenicity. In this study, a novel strategy of post‐decellularization modification aimed at preserving the endogenous capacity of cells on collagen synthesis to mask antigenic epitopes in extracellular matrix is proposed. To implement this strategy, a human‐derived rosiglitazone‐loaded decellularized extracellular matrix (R‐dECM) is developed. R‐dECM can release rosiglitazone for over 7 days in vitro. By suppressing M1 macrophage polarization, R‐dECM protects the migration and collagen synthesis abilities of tendon‐derived stem cells (TDSCs), while also stabilizing the phenotype of M2 macrophages in vitro. RNA sequencing reveals R‐dECM can mitigate the detrimental crosstalk between TDSCs and inflammatory cells. When applied to a rat patellar tendon defect model, R‐dECM effectively inhibits early inflammation, preventing chronic inflammation. Its duration of function far exceeds the release time of rosiglitazone, implying the establishment of immune evasion, confirming the effectiveness of the proposed strategy. And R‐dECM demonstrates superior tendon repair outcomes compared to dECM. Thus, this study provides a novel bioactive scaffold with the potential to enhance the long‐term clinical outcomes of xenogeneic tendon grafts.
Molecular Engineering for Enhanced Thermoelectric Performance of Single‐Walled Carbon Nanotubes/π‐Conjugated Organic Small Molecule Hybrids
Authors: Kim Tae‐Hoon , Jang Jae Gyu , Kim Sung Hyun , Hong Jong‐In 
Published: October 2023

AbstractHybridizing single‐walled carbon nanotubes (SWCNTs) with π‐conjugated organic small molecules (π‐OSMs) offers a promising approach for producing high‐performance thermoelectric (TE) materials through the facile optimization of the molecular geometry and energy levels of π‐OSMs. Designing a twisted molecular structure for the π‐OSM with the highest occupied molecular orbital energy level comparable to the valence band of SWCNTs enables effective energy filtering between the two materials. The SWCNTs/twisted π‐OSM hybrid exhibits a high Seebeck coefficient of 110.4 ± 2.6 µV K−1, leading to a significantly improved power factor of 2,136 µW m−1 K−2, which is 2.6 times higher than that of SWCNTs. Moreover, a maximum figure of merit over 0.13 at room temperature is achieved via the efficient TE transport of the SWCNTs/twisted π‐OSM hybrid. The study highlights the promising potential of optimizing molecular engineering of π‐OSMs for hybridization with SWCNTs to create next‐generation, efficient TE materials.
Neurocognitive function in panic disorder and social phobia patients
Authors: Asmundson Gordon J. G. , Stein Murray B. , Larsen Derrick K. , Walker John R. 
Published: October 2023

AbstractA neuropsychological test battery designed to assess verbal learning and memory, visual memory, psychomotor speed, cognitive flexibility and concentration was administered to patients with panic disorder (N = 18) and social phobia (N = 18) and a group of healthy control subjects (N = 16). Overall, the neurocognitive performance of the panic disorder and social phobia patients was lower than that of control subjects. Analyses of the verbal test variables indicated reduced performance in panic disorder and social phobia patients, relative to control subjects, on measures of verbal learning and memory. In addition, panic disorder patients exhibited deficits on short‐delay free recall. No group differences were observed on tests of visual memory, psychomotor speed, cognitive flexibility, and concentration. These results, while indicative of diminished neuropsychological test performance in patients with panic disorder and social phobia, do not suggest the presence of syndrome‐specific or localized neurocognitive deficits. Anxiety 1:201–207 (1994/1995). © 1995 WIey‐Liss, Inc.
Development of anxiety symptoms during a deep diving experiment
Authors: Abraini J. H. , Ansseau M. , Martinez E. , Burner H. , Wauthy J. , Lemaire C. 
Published: October 2023

AbstractSix commercial divers were investigated for anxiety responses during a 29‐day, open‐sea world record dive at 500 meters of depth. Three of six (50%) divers developed anxiety. The authors emphasize the importance of research on personality traits as possible predictors for the development of anxiety during deep dives of exceptional depth and duration of confinement. Anxiety 1:237–241 (1994/1995). © 1995 Wiley‐Liss, Inc.
Recent advances in mechanism, influencing parameters, and dopants of electrospun EMI shielding composites: A review
Authors: Li Xiuhong , Li Kai , Zhang Shuailong , Zhang Jinjiao , Hu Xinyu , Li Yi , Liu Yong 
Published: October 2023

AbstractThe rapid development and popularization of smart and portable electronic devices have led to increasingly related electromagnetic pollution affecting human health and equipment safety. Thus, designing high‐performance electromagnetic interference (EMI) shielding materials with lightweight, flexible, and easy preparation is urgent. The intrinsic physiochemical properties of electrospun micro/nanofibers provide an attractive potential to ease and accelerate the next‐generation EMI shielding materials. Here, a detailed review of the electrospun EMI shielding materials is established. First, this article outlines the shielding mechanism of EMI shielding materials obtained via electrospinning. Then, the affecting factors of electrospinning process conditions on the resulting EMI shielding micro/nanofibers are discussed. Next, diverse fillers that contribute to the EMI shielding efficiency of electrospun materials are demonstrated. Finally, the conclusion and prospects are introduced, hopefully contributing to assisting with more comprehensive and rational designs of high‐performance electrospun fiber‐based EMI shielding for various applications. Priority measures and future directions are suggested for the future development of electrospun EMI shielding materials.