bluuebunny/crossref_metadata_2025_split huggingface dataset:
VOZES NA PANDEMIA: LEITURAS DE ANÁLISES DE DISCURSO
Authors: Pucci Penteado de Faria e Silva Adriana , De Oliveira Daniele 
Published: June 2021

<p>Neste artigo, o objetivo é apresentar, por diferentes vieses teóricos de análises de discurso, reflexões sobre sentidos que circularam durante os primeiros meses da pandemia provocada pelo novo coronavírus em nosso país. Para tanto, após trazer breves considerações sobre a área do conhecimento em que nos inserimos, propomos a análise de duas sequências de enunciados veiculados em diferentes mídias desde março de 2020. Tanto pela análise Dialógica do Discurso, que deriva dos estudos de Bakhtin e do Círculo, como pelos Estudos Críticos do Discurso, notadamente o trabalho de van Dijk, nossas análises nos permitem apontar para formas pelas quais embates sociais, históricos e ideológicos têm sido discursivizados neste período. Conclui-se que a pandemia lança nova luz sobre discursos de exclusão que historicamente constituem nossa sociedade.</p><p> </p>
EVIDÊNCIAS SOCIOLINGUÍSTICAS SOBRE OS USOS DO IMPERATIVO NO INTERIOR DA BAHIA
Authors: Santos Lanuza Lima 
Published: June 2021

Este artigo analisa o uso variável do modo imperativo no português popular da Bahia, fundamentado no enquadramento teórico-metodológico da Sociolinguística Variacionista (WEINREICH; LABOV; HERZOG 2006 [1968]; LABOV, 2008 [1972]). O trabalho apresenta a alternância entre formas morfologicamente associadas ao indicativo (<em>canta/não</em> <em>canta</em>) e ao subjuntivo (<em>cante/não cante</em>) na expressão do <em>modo imperativo </em>em dados de fala de comunidades rurais da Bahia (Santo Antônio de Jesus, Poções, Barra e Bananal, Cinzento, Sapé e Helvécia). A análise quantitativa aponta a prevalência das formas do indicativo (<em>canta</em>) nessas comunidades. Esse resultado amplia o conhecimento acerca dos falares da Bahia e abre novas perspectivas de investigação acerca das isoglossas do imperativo ao apontar a complexidade da distribuição do fenômeno no estado.
10 ANOS DO PPGLinC – OS EGRESSOS EM FOCO: UMA APRESENTAÇÃO
Authors: Ribeiro Silvana Soares Costa , Figueiredo Cristina , Paim Marcela Moura Torres , Romano Valter Pereira 
Published: June 2021

<p>Para comemorar os 10 anos de criação do Programa de Pós-Graduação em Língua e Cultura da Universidade Federal da Bahia, doravante PPGLinC, no ano de 2020, o Colegiado do Programa realizou uma série de ações acadêmicas para marcar a data. Dentre elas lançou editais, incentivando a publicação de trabalhos de discentes de Mestrado e Doutorado, que culminaram com a produção de uma obra em dois volumes, intitulados: Volume 1, <em>Língua em Movimento: História e funcionamento das línguas naturais</em>, e Volume 2, <em>Língua em Movimento: Estudos em linguagem e interação</em>, totalizando 42 artigos, cuja autoria principal é de um discente do programa; organizou o <em>I Fórum de Autoavaliação e Planejamento Estratégico do PPGLinC</em> (conduzido pela Comissão de Avaliação e Planejamento Estratégico) e promoveu o <em>Seminário Comemorativo PPGLinC 10 anos</em> que ocorreu em dezembro de 2020, em conjunto com o <em>Seminário Estudantil de Pesquisa (SEPESQ)</em>, evento que congrega alunos de Graduação e Pós-Graduação do Instituto de Letras da UFBA. Como outra ação comemorativa, visando convidar para a festa do conhecimento os egressos do PPGLinC, sugeriu-se aos editores da Revista <em>Estudos Linguísticos e Literários</em><em> </em>que avaliassem a possibilidade de organização de um Dossiê da Revista ELL, ou de um número especial na edição da Revista do 2º semestre de 2020, dedicado à divulgação de artigos de egressos do PPGLinC. Coube a duas docentes da UFBA e a dois outros colegas de instituições de ensino superior do Brasil (UFRPE e UFSC) a tarefa da organização do Dossiê.</p>
AGENCIAMENTO DE ALUNOS NO PROCESSO DE COMPREENSÃO LEITORA: ATITUDES METACOGNITIVAS DO LEITOR EM TEXTOS SOBRE A COVID-19
Authors: Leal Abniza Pontes de Barros , Pelosi Ana Cristina , De Almeida Júnior Antenor Teixeira , Oliveira Suelene Silva 
Published: June 2021

Este trabalho apresenta uma investigação descritiva da compreensão leitora com o objetivo de verificar como os processos cognitivos devem ser agenciados pelo professor durante a leitura de textos multissemióticos sobre a COVID-19 para desenvolver no aluno uma atitude metacognitiva. Embasamos nossa pesquisa nos trabalhos de Sánchez, Garcia e Rosales (2012) e Botelho (2015). Para tanto, trabalhamos com os conceitos de agenciamento como ação de mediação entre professor-texto-leitor e de processos cognitivos que levam os alunos a extrair, interpretar e refletir como ação orientadora para a atividade de compreensão superficial, profunda e reflexiva. Assim argumentamos, com base em dois textos multissemióticos, que o agenciamento, determinado por objetivos claros com foco em cada etapa dos processos cognitivos, desenvolve uma atitude metacognitiva autônoma nos alunos.
GERENCIAMENTO DE RESÍDUOS SÓLIDOS DO COMPLEXO MILITAR FORTE SANTA BÁRBARA – FORMOSA-GO
Authors: Jacinto Cícero Alves , Abreu Lucijane Monteiro de , Ribeiro Elaine Nolasco 
Published: June 2021

<p>O objetivo deste estudo foi realizar um diagnóstico do sistema de gerenciamento de resíduos sólidos do Complexo Militar do Exército Brasileiro, Forte Santa Bárbara (Complexo FSB), em Formosa-GO, sob a égide da Lei 12.305/10. O levantamento dos dados ocorreu nos meses de abril a julho de 2018 por meio de visitas <em>in loco,</em> entrevistas e amostragem dos resíduos. Os resultados obtidos no diagnóstico indicaram que a instituição não faz a segregação de resíduos para o descarte, exceto a fração orgânica gerada no refeitório. Identificou-se que são geradas cerca de 3,6 ton/mês de resíduos, considerando a população de 1.000 indivíduos, sendo que 49% dos resíduos são orgânicos e originados, em grande maioria, no refeitório; 37% são recicláveis; e apenas 14% são rejeitos. Os resíduos sólidos da saúde gerados na Seção Sanitária e os gerados no setor de oficinas e garagens possuem destinação final ambientalmente adequada. Os resíduos e rejeitos são coletados pelo serviço de limpeza urbana de Formosa-GO e encaminhados para o aterro controlado da cidade. Concluiu-se que o gerenciamento dos resíduos sólidos, produzidos pelo Complexo FSB, precisa se adequar à Lei 12.305/10.</p><p><strong>Palavras-chave</strong>: Plano de gerenciamento. Coleta seletiva. Caracterização de resíduos. Exército. Cerrado.</p><p> </p><p align="center">SOLID WASTE MANAGEMENT OF THE MILITARY COMPLEX FORTE SANTA BÁRBARA – FORMOSA/GO</p><p><strong>Abstract</strong></p><p>The aim of this study was to carry out a diagnosis of the solid waste management system of the Brazilian Army Military Complex named Forte Santa Bárbara (Complex FSB), located in Formosa, in the state of Goiás/Brazil, under the aegis of the Law 12.305/10. Data collection was carried out from April to July 2018 through on-site visits, interviews, and waste sampling. The results obtained in the diagnosis indicated that the institution does not separate waste for proper disposal, except for the organic fraction generated in the cafeteria, it was identified that, considering a population of 1,000 individuals, about 3,6 ton/month of residues is generated; 49% of it is organic and originated in its vast majority in the cafeteria; 37% is recyclable; and only 14% configures waste. The solid health residues generated in the Sanitary Section and those generated in the garages sectors have an environmentally appropriate destination. Wastes and residues are collected by the urban cleaning service of Formosa and sent to the city’s-controlled landfill. It was concluded that the management of solid waste produced by the FSB Complex needs to comply with the Law 12.305/10.</p><strong>Keywords: </strong>Management plan. Selective collect. Waste characterization. Army. Cerrado.
MAPEAMENTO DE SUSCETIBILIDADE À INUNDAÇÃO UTILIZANDO O MÉTODO DA RAZÃO DE FREQUÊNCIA APLICADO À BACIA DO RIACHO FUNDO - DISTRITO FEDERAL
Authors: Oliveira Chaves Hugo Leonardo , Costa Maria Elisa Leite , Koide Sérgio , De Almeida Tati , Cicerelli Rejane Ennes 
Published: June 2021

O mapeamento de suscetibilidade à inundação é importante para o manejo da dinâmica do uso do solo e, consequentemente, da hidrologia urbana local. O presente estudo produziu o mapa de suscetibilidade à inundação na Bacia do Riacho Fundo, Distrito Federal, utilizando o método estatístico bivariado Razão de Frequência (Frequency Ratio), com 30 pontos de inundação observados em 2018 como pontos de treinamento (71%) e outros 12 pontos de inundação (29%) como pontos de validação para desenvolvimento do modelo. O modelo é composto de 12 fatores de influência: declividade, curvatura, aspecto, hipsometria, distância dos rios, índice de potência de escoamento, índice de transporte de sedimento, índice topográfico de umidade, índice de rugosidade do terreno, índice de escoamento superficial, uso e cobertura do solo e geologia. Todas as variáveis com um tamanho de pixel de 12,5 m x 12,5 m. Os fatores de uso e cobertura do solo e geologia local mostraram-se os mais influentes no modelo. A validação do modelo foi realizada utilizando o método da área sob a curva, com uma acurácia de 85,75%. O estudo mostra que o método pode ser usado para auxiliar no estudo de planos de controle e mitigação de inundação em centros urbanos, como a locação preliminar de bacias de detenção.Palavras-chave: suscetibilidade, inundação, mapeamento, razão de frequência, geoprocessamento. FLOOD SUSCEPTIBILITY MAPPING USING THE FREQUENCY RATIO METHOD APPLIED TO THE RIACHO FUNDO BASIN - FEDERAL DISTRICTAbstractFlood susceptibility mapping is important to the management of the urban hydrological dynamic and to the studies conducted to prevent the flood-based problems. This study has produced a flood susceptibility map using a bivariate statistical analysis named frequency ratio (FR) model applied in the Riacho Fundo catchment, with 30 flooding locations (71%) for statistical analysis as training dataset and 12 remaining points (29%) were applied to validate the developed model. Twelve conditioning factors were considered in this study: slope, curvature, aspect, elevation, distance to river, stream power index (SPI), sediment transport index (STI), topographic wetness index (TWI), terrain roughness index (TRI), superficial runoff index, land use/land cover (LULC) and geology. All these variables were resampled into 12.5×12.5 m pixel size. The model showed LULC and geology as the most influential factors in flooding. The AUC for success rate was 85.75% with the training points. The study shows the method can be used in studies of plans to mitigate and control flooding in urban centers, as preliminary lease of ponds.Keywords: susceptibility, flooding, mapping, frequency ratio, geoprocessing.
A PIT‐tag–based method for measuring individual bait uptake in small mammals
Authors: Beatham Sarah E. , Goodwin Dominic , Coats Julia , Stephens Philip A. , Massei Giovanna 
Published: June 2021

Abstract
Rodents and other small mammals cause an increasing number of negative economic and environmental impacts worldwide. In the UK, the non‐native grey squirrel has a significant impact on the forestry industry and has caused the decline of the native red squirrel.
Baits are used to deliver biocides and contraceptives to reduce overabundant wildlife populations and as vehicles for vaccines to control disease outbreaks. Bait‐delivered contraceptives are also being developed to manage grey squirrel populations in the UK. The effectiveness of bait‐delivered drugs on wildlife populations depends on the amount of bait consumed by individuals over time; therefore, it is important to understand individual level bait uptake in order to optimize delivery methods.
Passive integrated transponder (PIT) tags are increasingly used to mark and monitor animal behaviour as they are cost‐effective, have minimal negative welfare impacts and have a lower tag loss rate than external tags, particularly in small animals.
The aim of this study was to design and test a novel bait hopper equipped with a PIT‐tag reader and bait‐weighing device, to record bait uptake by individual grey squirrels for optimizing the delivery of a contraceptive bait. The hopper was designed to overcome some of the limitations of traditional PIT‐tag systems, by improving battery life and the quality and quantity of data collected in the field.
In captive trials, the hopper proved to be highly effective at recording feeding visits by squirrels, as 95% of the visits could be attributed to a PIT‐tag record. The hoppers measured the amount of bait removed per feeding visit to an accuracy of 0.1 g, with 97% of the bait taken from six hoppers attributed to a PIT‐tag ID. In a field trial, the hoppers were effective at recording the feeding visits by grey squirrels in two woods, with 47 of the 51 PIT‐tagged grey squirrels entering the hoppers.
The adaptability of the hopper design means that it has wider applications for wildlife management; in particular, efficacy studies for bait‐delivered substances in the context of wildlife disease control and/or population reduction.
Adaptive output regulation for one‐dimensional parabolic equation with nonlocal term
Authors: Liu Weiwei , Wang Jun‐Min 
Published: June 2021

SummaryIn this article, we develop the adaptive error feedback regulator design for one‐dimensional heat equation with a nonlocal term and disturbances which are located all the channels. First, we construct a transformation to transform the original system into the first auxiliary system, and in this system the measurable tracking error becomes output, both the disturbances located at the in‐domain and the control end are transformed to the uncontrolled end. Next, we design an observer for the first auxiliary system and an estimation mechanism for unknown parameters based on measurable tracking error. Then, by another transformation, we obtain the second auxiliary system, in which the disturbances and the reference signal are collocated with the control. Finally, the adaptive error feedback regulator is designed by using the backstepping method. The simulation results show that the regulator makes the tracking error asymptotically tend to zero and the state of the closed‐loop system is bounded.
Finite‐time asynchronous control of linear time‐varying switched systems
Authors: Wang Ronghao , Xing Jianchun , Xiang Zhengrong 
Published: June 2021

SummaryIn the framework of asynchronous control, finite‐time stabilization and finite‐time bounded stabilization of linear time‐varying (LTV) switched systems are investigated. A necessary and sufficient condition for finite‐time stability (FTS) of LTV switched systems is proposed based on differential matrix inequalities (DMIs). Moreover, we extend the FTS result to the case of finite‐time boundedness (FTB), and present a sufficient condition of FTB for LTV switched systems using the average dwell time method which can be used for design proposes. Then we turn to the design problem of asynchronously switched control to guarantee FTS or FTB of LTV switched systems and give a sufficient condition for the state feedback stabilization in the form of nonlinear DMIs (NDMIs). A numerical method is proposed to solve NDMIs approximately. Finally, two examples are given to illustrate the validity of the results.
Silicon in Hollow Carbon Nanospheres Assembled Microspheres Cross‐linked with N‐doped Carbon Fibers toward a Binder Free, High Performance, and Flexible Anode for Lithium‐Ion Batteries
Authors: Zhu Ruiyu , Wang Zehua , Hu Xuejiao , Liu Xiaojie , Wang Hui 
Published: June 2021

AbstractSilicon (Si), as the most promising anode material, has drawn tremendous attention to substitute commercially used graphite for lithium‐ion batteries (LIBs). However, recently, the insufficiently high structural stabilities and electron/ion conductivities of silicon‐based composites have become the main concerns, hindering the further progress of silicon as the anode material for LIBs. Herein, to cope with these concerns, a binder‐free and free‐standing type anode electrode paper is fabricated from self‐assembled microspheres and intertwined fabrics, in which a 3D interconnected nitrogen/carbon network connects hollow carbon nanospheres with uniformly distributed silicon nanodots (SHCM/NCF). The as‐prepared SHCM/NCF paper maintains a reversible capacity of 1442 mAh g−1 at 1 A g−1 for 800 cycles in lithium half‐cell, and 450 mAh g−1 at 0.5 A g−1 for 200 cycles in lithium full‐cell, respectively. The excellent battery performances are mainly attributed to the free‐standing paper electrode suppressing side reactions, nitrogen/carbon networks maintaining electrical contact, and silicon nanodots alleviating the harm caused by volume expansion. Furthermore, this excellent performance combined with the simplicity of the synthesis method and the saving of excess polymer binder, current collector and conducting additives, make the designed paper exhibit great potential in practical applications.
Rational Design of Soft Yet Elastic Lamellar Graphene Aerogels via Bidirectional Freezing for Ultrasensitive Pressure and Bending Sensors
Authors: Min Peng , Li Xiaofeng , Liu Pengfei , Liu Ji , Jia Xue‐Qin , Li Xiao‐Peng , Yu Zhong‐Zhen 
Published: June 2021

AbstractTo enhance the sensitivity of graphene aerogel‐based piezoresistive sensors by weakening their compressive strength while keeping their elasticity, lightweight and lamellar graphene aerogels (LGAs) with high elasticity and satisfactory electrical conductance networks are fabricated by bidirectional‐freezing of aqueous suspensions of graphene oxide in the presence of small amounts of organic solvents, followed by lyophilizing and thermal annealing. Because of the lamellar structure of the LGA, its compressive strength along the direction perpendicular to the lamellar surface is much lower than those of both isotropic and unidirectionally aligned graphene aerogels with similar apparent densities, leading to an ultrasensitive LGA‐based piezoresistive sensor with a high sensitivity of −3.69 kPa−1 and a low detection limit of 0.15 Pa. The ultrahigh sensitivity and low detection limit of LGA‐based piezoresistive sensor contribute to detecting subtle pressure at room temperature and in liquid nitrogen with ability to detect dynamic force frequency and sound vibration. Besides, thanks to the fewer junction points between the graphene lamellae, LGAs slices can be integrated as a wide‐range and sensitive bending sensor, which can detect arbitrary bending angles from 0° to 180° with a low detection limit of 0.29°, and is efficient in detecting biosignals of wrist pulse and finger bending.
Ultrasound‐Responsive Nanopeptisomes Enable Synchronous Spatial Imaging and Inhibition of Clot Growth in Deep Vein Thrombosis
Authors: Sloand Janna N. , Rokni Eric , Watson Connor T. , Miller Michael A. , Manning Keefe B. , Simon Julianna C. , Medina Scott H. 
Published: June 2021

AbstractDeep vein thrombosis (DVT) is a life‐threatening blood clotting condition that, if undetected, can cause deadly pulmonary embolisms. Critical to its clinical management is the ability to rapidly detect, monitor, and treat thrombosis. However, current diagnostic imaging modalities lack the resolution required to precisely localize vessel occlusions and enable clot monitoring in real time. Here, we rationally design fibrinogen‐mimicking fluoropeptide nanoemulsions, or nanopeptisomes (NPeps), that allow contrast‐enhanced ultrasound imaging of thrombi and synchronous inhibition of clot growth. The theranostic duality of NPeps is imparted via their intrinsic binding to integrins overexpressed on platelets activated during coagulation. The platelet‐bound nanoemulsions can be vaporized and oscillate in an applied acoustic field to enable contrast‐enhanced Doppler ultrasound detection of thrombi. Concurrently, nanoemulsions bound to platelets competitively inhibit secondary platelet–fibrinogen binding to disrupt further clot growth. Continued development of this synchronous theranostic platform may open new opportunities for image‐guided, non‐invasive, interventions for DVT and other vascular diseases.
Spin Injection Efficiency at Metallic Interfaces Probed by THz Emission Spectroscopy
Authors: Hawecker Jacques , Dang Thi‐Huong , Rongione Enzo , Boust James , Collin Sophie , George Jean‐Marie , Drouhin Henri‐Jean , Laplace Yannis , Grasset Romain , Dong Jingwei , Mangeney Juliette , Tignon Jerome , Jaffrès Henri , Perfetti Luca , Dhillon Sukhdeep 
Published: June 2021

AbstractTerahertz (THz) spin‐to‐charge conversion has become an increasingly important process for THz pulse generation and as a tool to probe ultrafast spin interactions at magnetic interfaces. However, its relation to traditional, steady state, ferromagnetic resonance techniques is poorly understood. Here, nanometric trilayers of Co/X/Pt (X = Ti, Au or an Au:W alloy) are investigated as a function of the “X” layer thickness, where THz emission generated by the inverse spin Hall effect is compared to the Gilbert damping of the ferromagnetic resonance. Through the insertion of the “X” layer it is shown that the ultrafast spin current injected in the non‐magnetic layer defines a direct‐spin‐conductance, whereas the Gilbert damping leads to an effective spin‐mixing‐conductance of the trilayer. Importantly, it is shown that these two parameters are connected to each other and that spin‐memory‐losses can be modeled via an effective Hamiltonian with Rashba fields. This work highlights that magneto‐circuit concepts can be successfully extended to ultrafast spintronic devices, as well as enhancing the understanding of spin‐to‐charge conversion processes through the complementarity between ultrafast THz spectroscopy and steady state techniques.
Guanidine‐Templated Manganese Halides Single Crystals toward Efficient Mechanoluminescence and Photoluminescence by Supramolecular Interactions Modulation
Authors: Liu Xiaoting , Ge Chengda , Yang Ziqi , Song Yilong , Wang Anran , Kang Yifei , Li Bao , Dong Qingfeng 
Published: June 2021

AbstractInteraction between organic molecule and inorganic frameworks can significantly change the photophysical properties of organic metal‐halides hybrid materials. Here, a family of guanidine‐based manganese‐halides is synthesized via supramolecular interactions modulation by adjusting conjugated degree and the number of hydrogen‐bonding donors in the guanidine‐based templates cations, which further endows intriguing optoelectrical properties. Single‐crystalline mono‐gua (gua = (C(NH2)3+)) and bigua‐functional group (bigua = (C(NH2)2NHC(NH2)2)2+)‐based manganese‐halides are prepared and efficient phosphorescence as well as strong mechanoluminescence (ML) are achieved by modulating the hydrogen‐bonding interaction and CH⋯π interaction with the manganese‐halides. The stronger weak interaction between the metal‐halides and organic ligands greatly reduces the molecular vibration and rotation of [MnBr4]2− and suppresses the non‐radiative transition under mechanical stimuli, which is favorable for ML. Based on this unique character of ML, a pressure sensor can be made as is demonstrated in this article by fabricating a highly uniform wafer‐sized (gua)2MnBr4 film. Furthermore, arc discharge is observed for the first time in the organic manganese halides during cooling‐induced shrinkage of crystals in the (gua)2MnBr4 system with highly symmetric and conjugated gua‐ligands.