bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of waterlogging stress on plant-pathogen interaction between Fusarium poae and wheat/ barley
Authors: Martinez Mauro , Arata Agustín Francisco , Lázaro Laura , Stenglein Sebastian Alberto , Dinolfo María Inés
Published: June 2019

Waterlogging stress is one of the abiotic factors which causes damage to crops affecting yield components and grain quality of wheat and barley. On the other hand, Fusarium poae is one of the most common Fusarium species isolated from wheat and barley. The aim of this study was to evaluate the effects of waterlogging and F. poae on disease parameters, yield components and grain quality of durum and bread wheat and barley. The experiment was carried out using pots under greenhouse conditions. Four treatments were applied: control/control (W0F0), control/F. poae (W0F1), waterlogging/control (W1F0) and waterlogging/F. poae (W1F1). The results showed that incidence, severity and FHB index of F. poae were higher in W0F1 compared to W1F1 suggesting that waterlogging treatment would be generating no favorable conditions for fungal growth. Therefore, yield components and grain composition and quality were significantly affected by the Fusarium presence and waterlogging treatment which could induce changes in parameters mainly related to the industrial quality of wheat and barley. These results highlight the behavior of wheat and barley under the combination of abiotic and biotic stress.
Concentration and accumulation of micronutrients in robust coffee
Authors: Dubberstein Danielly , Partelli Fábio Luiz , Espíndula Marcelo Curitiba , Dias Jairo Rafael Machado
Published: June 2019

Knowledge on the dynamics of micronutrients in coffee tree assists nutritional diagnosis and fertilization management. Therefore, the objective of this study was to evaluate the concentration and accumulation of micronutrients in the leaves and fruits of Coffea canephora. The experiment was managed in crops propagated for 2.5 years in a split-plot-in-time scheme in which the main plots consisted of fertilized and not-fertilized plants, and the subplots stipulated the evaluation periods. The berries and leaves were collected every 28 days, starting from the first flowering to full maturity. The micronutrient content was determined by laboratory chemical analysis, and the accumulation of nutrients in the fruit (mg) was calculated by multiplying the dry matter of the berry (g) × nutrient concentration (mg kg−1). The results showed that fertilization infers the zinc concentration in the fruits and the concentration for manganese, iron and zinc in the leaves in the determined periods. Micronutrient accumulation curves followed the simple sigmoidal model, with accumulation increasing considerably as a function of fruit growth. Thus, fertilization based on micronutrients must be divided over stages with higher accumulation rates, considering the specific requirement of each nutrient.
Gas exchanges of melon under water stress in the Submedium region of the São Francisco River Valley
Authors: Amorim Daniel Vieira , Mesquita Alessandro Carlos , Marinho Lígia Borges , Souza Vanuza De , Aidar Saulo De Tarso , Carvalho Marília Mickaele Pinheiro
Published: June 2019

The current scenario of increased water scarcity is due to climate change and directly affects food production. It is thus necessary to develop strategies to mitigate the impacts of low water availability. Therefore, the goal of the present study is to evaluate the physiological behaviour of melon cultivars under water stress. The experiment was conducted in a protected environment in the experimental Submedium region of the São Francisco River Valley in the period ranging from October to December. In this study, we used the melon cultivars 'Amarelo' and 'Piel de Sapo'. The experiment was conducted in a randomized block design with three replicates that were subdivided into plots, where the plots were comprised of four irrigation rates (50, 75, 100, and 125% of crop evapotranspiration – CET), subplots were comprised of the two melon cultivars, and sub-subplots were comprised of samplings for physiological analyses (15, 30, and 45 days after transplanting). The parameters evaluated were stomatal conductance, transpiration, net photosynthesis, relationship CI/CA, and accumulated dry matter. Water stress reduced the stomatal conductance, transpiration, net photosynthesis, CI/CA, and accumulated dry matter. 'Piel de Sapo' showed a higher photosynthetic adjustment than 'Amarelo' melon due to the gas exchange behaviour of the former, and it was, therefore, more tolerant to water stress.
Export of N, P and K in barley subjected to fertilizer doses formulated with and without humic substance at sowing
Authors: Oliveira Kathia Szeuczuk de , Mendes Marcelo Cruz , Ilibrante Gustavo Arruda , Antoniazzi Noemir , Stadler Alan Junior , Antoniazzi Ana Paula
Published: June 2019

The aim of this study was to evaluate the effect of nitrogen fertilization with and without humic acid in barley cultivars on the export of nitrogen, phosphorus and potassium grains. The experiment was performed in the city of Guarapuava, PR, during the 2015 and 2016 growing seasons. The experimental design was in RCB in factorial 5 x 2, with the following sowing fertilization (kg ha-1): 0, 100 NPK, 100 NPK+HS, 250 NPK, 250 NPK+HS and two cultivars, BRS Brau and BRS Elis. The dose of 250 kg NPK with humic substance increased the nitrogen export to barley grains, with the highest levels occurring in the BRS Brau cultivar under favorable climatic conditions. Under favorable climatic conditions, the export of phosphorus to barley grains in the agricultural crop was not influenced by the humic substance, with the highest levels occurring in the BRS Brau cultivar. The dose of 100 kg NPK with humic substance increased the export of potassium to barley grains, with the highest levels occurring in the BRS Brau cultivar regardless of climatic condition. There were correlations between nitrogen and phosphorus levels in grains and between phosphorus content and grain yield.
Entre a concessão e a adversidade: orações introduzidas por aunque no espanhol sob o viés funcionalista
Authors: Garcia Talita Storti , Felipe Mariana Alves Machado Pelegrini
Published: June 2019

Este trabalho investiga as orações do espanhol falado introduzidas por aunque, juntor que, de acordo com os compêndios gramaticais, na língua espanhola, pode assinalar uma relação concessiva ou adversativa. Sob a perspectiva da teoria da gramática discursivo-funcional (Hengeveld & Mackenzie, 2008), pretende-se averiguar como o fenômeno da sobreposição semântica entre concessão e adversidade é concebido e, de maneira específica, investigar em quais níveis e camadas do modelo essa sobreposição ocorre. Os resultados mostram que os casos duvidosos postulados pela perspectiva tradicional se dão no domínio interpessoal, quando constituem funções retóricas e funções interacionais.
NAC1 Potentiates Cellular Antiviral Signaling by Bridging MAVS and TBK1
Authors: Xia Zhangchuan , Xu Gang , Nie Longyu , Liu Lin , Peng Nanfang , He Qiaoqiao , Zuo Qi , Zhou Yaqin , Cao Zhongying , Liu Shi , Zhu Ying
Published: June 2019

Intracellular viral RNAs are recognized by the RIG-I–like receptors (RLRs), which signal through the mitochondrial antiviral signaling protein MAVS. MAVS recruits and activates TBK1 kinase, which further phosphorylates and activates the transcription factor IRF3, leading to the induction of type I IFN and downstream antiviral genes. We identified human nucleus accumbens–associated 1 (NAC1), a member of the BTB/POZ family, as a bridge for MAVS and TBK1 that positively regulates the RLR-mediated induction of type I IFN. Overexpression or knockdown of NAC1 could, respectively, enhance or impair Sendai virus–triggered activation of TBK1 and IRF3, as well as induction of IFN-β. NAC1 also significantly boosted host antiviral responses against multiple RNA viruses. NAC1 was able to interact with MAVS and TBK1 upon viral infection. The BTB/POZ domain (aa 1–133) of NAC1 interacted with MAVS, and the remainder of NAC1 bound to TBK1. Furthermore, NAC1 could promote the recruitment of TBK1 to MAVS. In contrast, knockdown of NAC1 attenuated the interaction between TBK1 and MAVS. Collectively, our study characterizes NAC1 as an important component of RLR-mediated innate immune responses and uncovers a previously unrecognized function of the BTB/POZ family proteins.
Decomposition of Brownian loop-soup clusters
Authors: Qian Wei , Werner Wendelin
Published: June 2019

We study the structure of Brownian loop-soup clusters in two dimensions. Among other things, we obtain the following decomposition of the clusters with critical intensity: If one conditions a loop-soup cluster on its outer boundary

\partial

(which is known to be an SLE

_4

-type loop), then the union of all excursions away from

\partial

by all the Brownian loops in the loop-soup that touch

\partial

is distributed exactly like the union of all excursions of a Poisson point process of Brownian excursions in the domain enclosed by

\partial

.

A related result that we derive and use is that the couplings of the Gaussian Free Field (GFF) with CLE

_4

via level lines (by Miller–Sheffield), of the square of the GFF with loop-soups via occupation times (by Le Jan), and of the CLE

_4

with loop-soups via loop-soup clusters (by Sheffield and Werner) can be made to coincide. An instrumental role in our proof of this fact is played by Lupu’s description of CLE

_4

as limits of discrete loop-soup clusters.
Однородное двукратное уравнение Винера-Хопфа
с симметрическим ядром в консервативном случае
Authors: Arabadzhyan Levon Gurgenovich
Published: June 2019

В работе установлены условия нетривиальной разрешимости
двукратного однородного уравнения
$$
S(x,y)=\int^\infty_0
\int^\infty_0 K(x-x',y-y')S(x',y') dx' dy',\qquad
(x,y)\in\mathbb R_+\times\mathbb R_+,
$$
где $\mathbb R_+\equiv[0,+\infty)$, а данная функция $K$
удовлетворяет условиям консервативности
$$
0\le K\in L_1,\qquad
\iint_{\mathbb R^2}K(x,y) dx dy=1
$$
и некоторым дополнительным условиям относительно
ее первых и вторых моментов.
Библиография: 8 названий.
Low-visibility forecasts for different flight planning horizons using tree-based boosting models
Authors: Dietz Sebastian J. , Kneringer Philipp , Mayr Georg J. , Zeileis Achim
Published: June 2019

Abstract. Low-visibility conditions enforce special procedures that reduce the
operational flight capacity at airports. Accurate and probabilistic forecasts
of these capacity-reducing low-visibility procedure (lvp) states help the
air traffic management in optimizing flight planning and regulation. In this
paper, we investigate nowcasts, medium-range forecasts, and the
predictability limit of the lvp states at Vienna International Airport. The forecasts are
generated with boosting trees, which outperform persistence, climatology,
direct output of numerical weather prediction (NWP) models, and ordered
logistic regression. The boosting trees consist of an ensemble of decision
trees grown iteratively on information from previous trees. Their input is
observations at Vienna International Airport as well as output of a high resolution and an
ensemble NWP model. Observations have the highest impact for nowcasts up to a
lead time of +2 h. Afterwards, a mix of observations and NWP forecast
variables generates the most accurate predictions. With lead times longer
than +7 h, NWP output dominates until the predictability limit is reached
at +12 d. For lead times longer than +2 d, output from an ensemble of
NWP models improves the forecast more than using a deterministic but finer
resolved NWP model. The most important predictors for lead times up to
+18 h are observations of lvp and dew point depression as well as NWP
dew point depression. At longer lead times, dew point depression and
evaporation from the NWP models are most important.
De manuscrito conspirador a impreso revolucionario. "El Diario Secreto de Lima" y el discurso político disidente en el contexto de la independencia de América”.
Authors: Morán Luis Daniel
Published: June 2019

Entre el contexto de la crisis hispana de 1808 y el impacto de la formación de juntas de gobierno en América irrumpió El Diario Secreto de Lima en 1811. Promovido por Fernando López Aldana en la capital de la administración de Abascal en el Perú, el impreso pasó de ser un manuscrito conspirador a un impreso revolucionario. En esa perspectiva, esta investigación tiene como objetivo el análisis del discurso político disidente del Diario Secreto en la coyuntura de la independencia y a partir de cuatro puntos temáticos centrales: la crítica al despotismo, la adhesión a los revolucionarios de Buenos Aires, la recurrencia a la plebe y la incidencia por la participación del bello sexo en aquella coyuntura de guerra y revolución.
Ser Professor de História em tempos difíceis: início de um processo formativo
Authors: Gago Marilia
Published: June 2019

A realidade presente partilha uma narrativa histórica que parece estar muito centrada no que nos distingue. A humanidade parece ser definida mais pelo que a separa do que pelo que a une, pelo que existe em comum. Partilhando-se a necessidade de um novo olhar acerca do ser humano e da concepção que a História é transformativa e permite a complexificação da compreensão do mundo considerou-se relevante compreender como um processo de formação pode contribuir para o desenvolvimento profissional e pensamento histórico de futuros professores de História, alunos de mestrado de formação profissionalizante. Propõem-se a análise das ideias que emergiram de uma tarefa inicial proposta e realizada por vinte alunos, futuros professores de História, tendo-se em vista o desafio destas ideias ao longo do processo de formação, e numa lógica longitudinal, acompanhar o desenvolvimento profissional e do pensamento histórico destes alunos. Emergiram ideias que se pautam por uma lógica de profissionalismo gerencialista e de perspetivar a História como o campo que forma cidadãos. Estas ideias sugerem estar em rota com demandas externas veiculadas por entidades e agendas políticas.
Charlie Hebdo: Consciência histórica sobre intolerância religiosa de estudantes de Goiânia
Authors: Silva Maria da Conceição , Teixeira Enelice Milhomem Jacobina
Published: June 2019

A presente pesquisa analisa o sentido da intolerância religiosa a partir de estudos sobre o atentado ao Semanário Charlie Hebdo, ocorrido em janeiro de 2015, na cidade de Paris. As fontes investigadas foram as narrativas de estudantes de uma Escola da Secretaria Municipal de Educação em Goiânia, coletadas entre 2015 e 2017, por meio de instrumental de investigação, que teve como objetivo indagar a postura, contrária e favorável, dos estudantes aos terroristas ou aos cartunistas. O aporte teórico desenvolvido pela educação histórica possibilitou fazer intervenções para o aprofundamento de estudos sobre intolerância. Após as intervenções, aplicamos o instrumental de investigação pela segunda vez, a fim de verificarmos se houve alterações nas aprendizagens. Identificamos pouco avanço em relação à postura dos estudantes sobre a liberdade de expressão de religiosos e não religiosos. Fizemos uma terceira intervenção, com questões relacionadas ao motivo das charges serem ofensivas à religião Islâmica e a explicação sobre o que é intolerância religiosa na atualidade. Percebemos nessas narrativas a existência de alterações; alguns estudantes demonstraram mudança na consciência histórica para uma orientação crítica e genética.
Reviewer Acknowledgements for Computer and Information Science, Vol. 12, No. 1
Authors: Lee Chris
Published: June 2019

Reviewer Acknowledgements for Computer and Information Science, Vol. 12, No. 1
Experiences in Supply Chain Quality Management Practices in Vietnam: Studying on Steel Manufacturing Company A and Packaging Manufacturing Company B
Authors: Thi Duc Nguyen Nguyen
Published: June 2019

Supply chain quality management is receiving the increasing interests of managers not only in Vietnam, but also in over the world, though research to date insufficiently meets the practical needs of business. Taking an advantage, this study aims at providing practical experiences in supply chain quality management practices of companies in Vietnam which effectively effects on their firm’s performance. On the basis of reviewing previous studies, this study is conducted through in-depth interviewing with seven experts of the seven manufacturing companies in Vietnam and researching case study at two typical manufacturing companies in the steel and packaging manufacturing industry in Vietnam. The result finds that there are six critical aspects of supply chain quality management practices having the impact on firms’ performance in Vietnam, specifically top management support, human resource development, internal lean practices, supplier focus, strategic supplier partnership and customer focus. Finally, it provides an interesting reference for supply chain managers in Vietnam in searching the appropriate approaches to increase the performance of the business through supply chain quality management practices.
Reviewer Acknowledgements for Modern Applied Science, Vol. 13, No. 3
Authors: Lee Sunny
Published: June 2019

Reviewer Acknowledgements for Modern Applied Science, Vol. 13, No. 3
A Comparative Study on Big Data Analytics Frameworks, Data Resources and Challenges
Authors: Abuqabita Flasteen , Al-Omoush Razan , Alwidian Jaber
Published: June 2019

Recently, huge amount of data has been generated in all over the world; these data are very huge, extremely fast and varies in its type. In order to extract the value from this data and make sense of it, a lot of frameworks and tools are needed to be developed for analyzing it. Until now a lot of tools and frameworks were generated to capture, store, analyze and visualize it. In this study we categorized the existing frameworks which is used for processing the big data into three groups, namely as, Batch processing, Stream analytics and Interactive analytics, we discussed each of them in detailed and made comparison on each of them.
The Optimal Size of {b, t} - Blocking Set When t = 3,4 by Intersection the Tangent in PG (2, q)
Authors: Ibrahim Shaymaa Haleem , Kasm Nada Yassen
Published: June 2019

In this research, we have been able to construct a triple blocking set of optimal size - {4q, 3} Based on the theorem (1.4.7) (Maruta, 2017, pp. 1-47).Without improving the minimum constraint of the projection level PG (2, q) We have also been able to develop the theorem (2.3.2) to construct quadratic blocking set of optimal size {5q + 1,4} - After we have engineered a quadratic blocking set of an optimal size for the projection plane PG (2,1.3) In the example (2.3.1).In general, we were able to conclude theorems (2.3.3) and (2.3.4) for construct engineered blocking sets with an optimal size when t = 3,4.
Knowledge and practice regarding neonatal pain
management in the opinion of nurses and midwives working
in Polish neonatal units
Authors: Panek Magdalena , Kwinta Przemko
Published: June 2019

Nurses and midwives working in neonatal units play a key role in the assessment and treatment of pain.
Due to their nature of work, which is based on continuous observation of the patient, they constitute a professional group that responds to changes in the child’s general condition. Thanks to this, the physicians get information about
pain intensity or the need of pain treatment, which is relevant among patients who cannot report any symptoms of
pain by themselves. The aim of the study was to describe nurses’ and midwives’ basic knowledge about pain and
the practice regarding procedural pain assessment and management in Polish neonatal care units. The studies
were carried out among 617 nurses and midwives working in neonatal units in Poland. We collected data by using
a researcher-developed questionnaire. The significance level was set at p<0.5. 30% of nurses never used nonpharmacological
methods of pain relief before painful procedures. Moreover, the higher the level of reference, the
more often no non-pharmacological methods were used. Knowledge related to the basic problems associated
with pain can be described as insufficient (Me = 4). Frequent use of sedation drugs has also been reported (III level
NICU: phenobarbital per os/per rectum 72.8% of respondents, opioids – 34.9%, II level NICU: phenobarbital per os/
per rectum 45.2%, opioids: 4.5%). The longer nurses and midwives worked, the lower the frequency of use of pain
assessment tools was (p = 0.0048, R = -0.113). The lack of appropriate pharmacological and non-pharmacological
pain treatment and lack of use of pain scales are a significant problem in the care of newborns. Our research
indicates the need for education in the field of pain assessment and treatment methods in newborns.
Unreliable is Better: Theoretical and Practical Impulses for Performance Management
Authors: Stöckli Sabrina , Messner Claude , Sterchi Martin , Dorn Michael
Published: June 2019

This review aims to stimulate discussion about a comprehensive understanding of performance evaluation-namely, the taken-forgranted benefit of maximal reliable performance evaluation, where employee performance is evaluated with high levels of reliability (i.e., large samples of performance observations). So far, the management discipline has ignored the evidence-based view that one’s performance is better under unreliable performance evaluation compared to reliable performance evaluation. Drawing on tournament theory, behavioral research, and real-world sports data, we argue that while reliable performance evaluation boosts only superior employees, unreliable performance evaluation boosts all employees. The mechanisms that drive inferior and superior employees to perform better when evaluated unreliably substantiate that psychological insight is essential for efficient performance management. Overall, we complement the predominant thinking of performance management by offering innovative insights and implications that are significant for academics, employees, and employers.
Aktuelle Entwicklungen des Strafvollzugs und der Sanktionspraxis in England, Wales und Schottland
Authors: Janssen Jan-Carl
Published: June 2019

Der Strafvollzug in England, Wales und Schottland ist seit den 1990er Jahren durch die sog. Penal Crisis geprägt, die sich durch einen starken Anstieg der Gefangenenraten, Überbelegungen und Personalengpässe neben weiteren Problemen auszeichnet. Der Beitrag differenziert zwischen dem (gemeinsamen) englischen und walinischen und dem schottischen Strafvollzugssystem. Er befasst sich mit den Ursachen der Systemkrise und zeigt, dass für diese Entwicklung eine punitiv ausgerichtete Kriminalpolitik mit Ursprüngen in den 1980er Jahren sowie eine veränderte Sanktionspraxis der Gerichte verantwortlich ist. Zudem wird auf die Privatisierungsmaßnahmen im Bereich des Strafvollzugs eingegangen.
Reframing Reference for Marginalized Students: A Participatory Visual Study
Authors: Tewell Eamon
Published: June 2019

How can academic librarians improve reference services for marginalized students? How can research into such questions center students’ ideas and experiences? This study uses Photovoice, a participatory method that combines photography, interviews, and group discussion to create change regarding an issue. Eleven university students from historically marginalized backgrounds were asked to document how they seek information in their everyday activities, and the resulting themes and recommendations were considered in light of potential implications for the design of reference services. Notable findings include participants’ preference for in-person support regarding questions about their academic work, the use of visual information such as pictures and screenshots to aid information seeking, and a desire for the library to improve the ease of accessing articles. Many additional ideas for improving various aspects of the library were shared by participants. The study’s process and findings underscored the uniqueness of participants’ experiences and information practices, suggesting that universal models concerning different user populations can overly simplify experiences and are less useful than a contextual approach to working with learners.
Book Review: Digital Humanities, Libraries, and Partnerships: A Critical Examination of Labor, Networks, and Community
Authors: Giannetti Francesca
Published: June 2019

As the title suggests, a major theme of this edited volume is partnership. While every digital humanist to some extent defines digital humanities (DH) in subjective ways, there is widespread consensus that DH work requires interdisciplinary collaboration of the sort in which each partner’s disciplinary knowledge and expertise are respected. These conditions of mutual respect should be obtained whether or not the partner is a student, an MLIS- or PhD-credentialed librarian, an archivist, an alt-ac worker, or an academic faculty member (non-tenure track, tenure-track, or tenured). Inevitably, there are frictions within traditional academic hierarchies. For example, the chapter by Risam and Edwards recounts the unequal terms of participation for faculty and librarians in grant-funded work. Problems of credit-sharing are a feature of many chapters.
Book Review: Artifacts from Modern America
Authors: Carr Tracy
Published: June 2019

If one were to land on Earth from another planet and were curious about how and why Americans used microwaves, cellophane, or penicillin, one’s alien curiosity might be sated with Artifacts from Modern America by Helen Sheumaker. This look at the twentieth century’s material culture approaches each artifact in the same manner medieval farming tools might be approached: with physical descriptions of the artifacts, as well as context about the long-ago humans who might have used, seen, or experienced them.
Análise de permeabilidade em modelo reduzido de barragem através da altura piezométrica
Authors: Correia Kharlla Rhobertta , Miranda Talita Caroline , Oliveira Carita Monielle Maia de , Teixeira Mateus Borba
Published: June 2019

Apresentando-se como uma das obras de maiores complexidade da engenharia civil, as barragens são elementos estruturais construídos ao longo do eixo transversal, em direção ao escoamento de um curso d’água, designada a ser um reservatório artificial. Atendendo basicamente a dois desígnios: regularização e retenção. Seguindo os preceitos, essa pesquisa tem como finalidade a criação de protótipos físicos reduzidos, simulando barragens de terra a fim de analisar alguns dos fenômenos que ocorrem nas mesmas. A construção será realizada com solo arenoso e argiloso, em alguns dos experimentos será apenas utilizado solo arenoso e em outros, a mistura desses dois solos em diversas proporções. Possuindo como fim principal, a análise de como será o comportamento da água diante da relação entre os solos, a fim de realizar as leituras piezométricas. As leituras serão realizadas a partir do enchimento da barragem com o marco de 0 minuto e, posteriormente feitas a cada 5 minutos, totalizando 10 leituras. Foram realizados sete experimentos no total, sendo um de calibração do equipamento e seis com a construção do modelo reduzido da barragem. Portanto este trabalho tem por intenção avaliar o controle de fluxo interno através do corpo da barragem (dimensionamento do sistema de drenagem interna) através de um modelo reduzido em laboratório.
Sustentabilidade e educação ambiental: um destaque aos resíduos sólidos gerados assentamento Santo Antônio – Paraíba – Brasil
Authors: De Abreu Carolino Eclivaneide Caldas , Candeia Roberlucia Araújo , Marinho Sales Ricelia Maria , De Farias Camilo Allyson Simões , Cunha Siqueira Eliezer da
Published: June 2019

Os progressos da humanidade contribuíram para melhorar a qualidade e a expectativa de vida, mas, em contrapartida, o consumismo compromete o bem-estar das gerações futuras e do meio ambiente, visto que ocasiona crescimento na geração de resíduos e de dejetos. Neste sentido, a Educação Ambiental é um processo que busca despertar a preocupação individual e coletiva que impulsam ações que visem a sustentabilidade ambiental. Este cenário motivou a construção deste trabalho, cujo objetivo geral foi analisar o modo de vida no Assentamento Santo Antônio, localizado no município de Cajazeiras, estado da Paraíba, Nordeste do Brasil. Assim, os procedimentos adotados pautaram-se no levantamento de dados primários, mas também, no levantamento bibliográfico, bem como, na estruturação de ações educativas voltadas para a sustentabilidade, disseminando e coordenando atividades ligadas à gestão ambiental, mais específico, aos resíduos sólidos, no que concerne à geração de renda, recursos naturais, qualidade de vida e a própria relação destes humanos com a natureza. Para tanto, foram realizadas palestras, oficinas, e cartilha sobre compostagem, biodigestor e a implantação do sistema de coleta seletiva que tiveram a finalidade de contribuir com a melhoria da produção, alimentação e renda da comunidade. No que tange os resultados verificou-se que os tipos e condições de moradia, foram observados que os habitantes do assentamento em estudo, possuem residência de alvenaria (90%), seguido de madeira, e material reciclado. No que concerne à utilização de qualquer tipo de fontes energéticas no assentamento, estes fazem uso apenas de energia elétrica, não citando outro modo de energia alternativa sustentável, a exemplo do biogás proveniente de biodigestor. Por outro lado, quanto ao aproveitamento de algum tipo de material que iria ser descartado, o plástico tem sido um dos mais reutilizados por 75% dos assentados, seguido de pouco mais de 8% dos moradores que reaproveitam papel, vidro e metal. Provocados a respeito da possibilidade dos seus trabalhos gerarem danos ao meio ambiente 75% disseram que sim, ou seja, e, 25% dos entrevistados afirmaram que o seu trabalho não causa danos para a natureza. Concluiu-se então que a proposta de educação em constante diálogo com a natureza representou um resgate de conhecimentos locais favoráveis ao desenvolvimento de práticas de valorização dos recursos naturais, assim como os saberes locais podem ser articulados pela educação ambiental e modificar os modos de viver e compreender a natureza, seus limites, desafios e impedimentos, com um olhar de quem está inserido no ambiente, experimentando suas mutações e resistências às condições naturais.
Subsidiariedade, direitos humanos e meio ambiente: um olhar sobre a política pública do pós-impacto ambiental.
Authors: Notari Márcio Bonini , Cardoso Karla Regina
Published: June 2019

O presente trabalho tem como objeto de estudo analisar a subsidiariedade no sentido etimológico realizando um itinerário pela origem do termo e sua relação com as Encíclicas Papais. Num segundo instante, será feita a relação da subsidiariedade e o papel dos direitos humanos na esfera municipal. Em terceiro plano, será realizando um prognóstico dos desastres ambientes no espaço local e tomada de decisão dos agentes governamentais quanto a população diretamente afetada e a necessidade de abertura a comunidade na tomada de decisão em relação a assistência ao pós-impacto e nos planos contingenciais.
Produção monográfica: significados e dificuldades na visão dos estudantes
Authors: Durante Daniela Giareta , Ribeiro Janaina Lima de Souza , Rocha Thays Lyanny da Cunha Garcia da
Published: June 2019

A produção monográfica é um meio de inserir o aluno da graduação na pesquisa científica, tornando-o responsável por gerar conhecimento e ser sujeito ativo no seu processo de formação (Severino, 2007; Demo, 2011). A problemática desta pesquisa consiste no seguinte questionamento: que significados são atribuídos pelos estudantes à elaboração da monografia?  Esta investigação justifica-se pela inexistência de pesquisas que tratem das percepções dos alunos de Secretariado Executivo sobre o tema, sendo relevante conhecer tais percepções, uma vez que a monografia não é um componente obrigatório para a conclusão da graduação na área, e estudos que evidenciem tais percepções podem contribuir para maior interesse dos estudantes de graduação na pesquisa científica. O objetivo geral consiste em compreender o significado da produção monográfica para os egressos do curso de bacharelado em Secretariado Executivo da Universidade Federal do Ceará [UFC]. No que se refere aos aspectos metodológicos, trata-se de uma pesquisa qualitativa e descritiva. A técnica de coleta de dados empregada foi questionário, e a análise foi realizada por meio da análise de conteúdo. A abordagem teórica contempla estudos da Educação que discutem a formação acadêmica e os estudos sobre pesquisa em Secretariado. Os sujeitos apontaram dificuldades de ordem pessoal e institucional, mas estas parecem não comprometer a produção monográfica. Concluiu-se que o trabalho monográfico impacta positivamente na satisfação dos estudantes, contribuindo tanto para o seu desenvolvimento intelectual quanto pessoal. Ademais, esses trabalhos fomentam e enriquecessem as pesquisas na área secretarial.
Selective Cell Penetrating Peptide‐Functionalized Envelope‐Type Chimeric Lipopepsomes Boost Systemic RNAi Therapy for Lung Tumors
Authors: Qiu Min , Ouyang Jia , Wei Yaohua , Zhang Jian , Lan Qing , Deng Chao , Zhong Zhiyuan
Published: June 2019

Small interfering RNA (siRNA) is considered a highly specific and potent biotherapeutic that holds tremendous potential for the treatment of various diseases. The clinical translation of siRNA is, however, greatly impeded by the lack of safe and efficient delivery vehicles in vivo. Here, the development of selective cell penetrating peptide (CPP33)‐functionalized chimeric lipopepsomes (CPP33‐CLP) for efficient encapsulation and selective delivery of polo‐like kinase 1 specific siRNA (siPLK1) to orthotopic A549 human lung tumor in vivo is reported. Interestingly, siRNA is tightly encapsulated into CPP33‐CLP with a superb encapsulation efficiency of over 95% owing to the thick strong electrostatic interactions. Notably, siPLK1‐loaded CPP33‐CLP (siPLK1‐CPP33‐CLP) is selectively internalized by A549 human lung cancer cells, efficiently escapes from endosomes, and swiftly releases siRNA into the cytoplasm, affording a significant sequence‐specific gene silencing in vitro. Moreover, siPLK1‐CPP33‐CLP exhibits prolonged blood circulation, enhanced tumor accumulation, effective suppression of tumor growth, and considerably elevated survival time of orthotopic A549 human lung tumor‐bearing nude mice. These chimeric lipopepsomes appear as an attractive and potent nanoplatform for safe and targeted siRNA delivery.
Anisotropic Thermal Boundary Resistance across 2D Black Phosphorus: Experiment and Atomistic Modeling of Interfacial Energy Transport
Authors: Li Man , Kang Joon Sang , Nguyen Huu Duy , Wu Huan , Aoki Toshihiro , Hu Yongjie
Published: June 2019

Interfacial thermal boundary resistance (TBR) plays a critical role in near‐junction thermal management of modern electronics. In particular, TBR can dominate heat dissipation and has become increasingly important due to the continuous emergence of novel nanomaterials with promising electronic and thermal applications. A highly anisotropic TBR across a prototype 2D material, i.e., black phosphorus, is reported through a crystal‐orientation‐dependent interfacial transport study. The measurements show that the metal–semiconductor TBR of the cross‐plane interfaces is 241% and 327% as high as that of the armchair and zigzag direction‐oriented interfaces, respectively. Atomistic ab initio calculations are conducted to analyze the anisotropic and temperature‐dependent TBR using density functional theory (DFT)‐derived full phonon dispersion relation and molecular dynamics simulation. The measurement and modeling work reveals that such a highly anisotropic TBR can be attributed to the intrinsic band structure and phonon spectral transmission. Furthermore, it is shown that phonon hopping between different branches is important to modulate the interfacial transport process but with directional preferences. A critical fundamental understanding of interfacial thermal transport and TBR–structure relationships is provided, which may open up new opportunities in developing advanced thermal management technology through the rational control over nanostructures and interfaces.
Extrinsic Green Photoluminescence from the Edges of 2D Cesium Lead Halides
Authors: Wang Chong , Wang Yanan , Su Xinghua , Hadjiev Viktor G. , Dai Shenyu , Qin Zhaojun , Calderon Benavides Hector A. , Ni Yizhou , Li Qiang , Jian Jie , Alam Md. Kamrul , Wang Haiyan , Robles Hernandez Francisco C. , Yao Yan , Chen Shuo , Yu Qingkai , Feng Guoying , Wang Zhiming , Bao Jiming
Published: June 2019

Since the first report of the green emission of 2D all‐inorganic CsPb2Br5, its bandgap and photoluminescence (PL) origin have generated intense debate and remained controversial. After the discovery that PL centers occupy only specific morphological structures in CsPb2Br5, a two‐step highly sensitive and noninvasive optical technique is employed to resolve the controversy. Same‐spot Raman‐PL as a static property–structure probe reveals that CsPbBr3 nanocrystals are contributing to the green emission of CsPb2Br5; pressure‐dependent Raman‐PL with a diamond anvil cell as a dynamic probe further rules out point defects such as Br vacancies as an alternative mechanism. Optical absorption under hydrostatic pressure shows that the bandgap of CsPb2Br5 is 0.3–0.4 eV higher than previously reported values and remains nearly constant with pressure up to 2 GPa in good agreement with full‐fledged density functional theory (DFT) calculations. Using ion exchange of Br with Cl and I, it is further proved that CsPbBr3−x
Xx
(X = Cl or I) is responsible for the strong visible PL in CsPb2Br5−x
Xx
. This experimental approach is applicable to all PL‐active materials to distinguish intrinsic defects from extrinsic nanocrystals, and the findings pave the way for new design and development of highly efficient optoelectronic devices based on all‐inorganic lead halides.
Perovskite Bifunctional Device with Improved Electroluminescent and Photovoltaic Performance through Interfacial Energy‐Band Engineering
Authors: Xie Jiangsheng , Hang Pengjie , Wang Han , Zhao Shenghe , Li Ge , Fang Yanjun , Liu Feng , Guo Xinlu , Zhu Hepeng , Lu Xinhui , Yu Xuegong , Chan Christopher C. S. , Wong Kam Sing , Yang Deren , Xu Jianbin , Yan Keyou
Published: June 2019

Currently, photovoltaic/electroluminescent (PV/EL) perovskite bifunctional devices (PBDs) exhibit poor performance due to defects and interfacial misalignment of the energy band. Interfacial energy‐band engineering between the perovskite and hole‐transport layer (HTL) is introduced to reduce energy loss, through adding corrosion‐free 3,3′‐(2,7‐dibromo‐9H‐fluorene‐9,9‐diyl) bis(n,n‐dimethylpropan‐1‐amine) (FN‐Br) into a HTL free of lithium salt. This strategy can turn the n‐type surface of perovskite into p‐type and thus correct the misalignment to form a well‐defined N–I–P heterojunction. The tailored PBD achieves a high PV efficiency of up to 21.54% (certified 20.24%) and 4.3% EL external quantum efficiency. Free of destructive additives, the unencapsulated devices maintain >92% of their initial PV performance for 500 h at maximum power point under standard air mass 1.5G illumination. This strategy can serve as a general guideline to enhance PV and EL performance of perovskite devices while ensuring excellent stability.
Improving the Performance of Paper Supercapacitors Using Redox Molecules from Plants
Authors: Edberg Jesper , Brooke Robert , Granberg Hjalmar , Engquist Isak , Berggren Magnus
Published: June 2019

A supercapacitor made from organic and nature‐based materials, such as conductive polymers (PEDOT:PSS), nanocellulose, and an the organic dye molecule (alizarin), is demonstrated. The dye molecule, which historically was extracted from the roots of the plantrubia tinctorum, is here responsible for the improvement in energy storage capacity, while the conductive polymer provides bulk charge transport within the composite electrode. The forest‐based nanocellulose component provides a mechanically strong and nonporous network onto which the conductive polymer self‐organizes. The electrical and electrochemical properties of the material composition are investigated and prototype redox‐enhanced supercapacitor devices with excellent specific capacitance exceeding 400 F g−1and an operational stability over >1000 cycles are demonstrated. This new class of supercapacitors, which in part are based on organic materials from plants, represents an important step toward a green and sustainable energy technology.
Chemical Bonding Effect on the Incorporation and Conduction of Interstitial Oxide Ions in Gallate Melilites
Authors: Xu Jungu , Li Yanchang , Zhou Lijia , Tang Xin , Kuang Xiaojun
Published: June 2019

The ability to incorporate high content of interstitial oxygen ions (Oi) in La1+xSr1‐xGa3O7+0.5x melilite owing to the good size match between La3+ and Sr2+ ions is well documented. Here, the complete substitution of Sr2+ by Pb2+ lone‐pair cations results in a significant loss of this ability, even though Sr2+ and Pb2+ have almost the same effective ionic radius. To explore the fundamental mechanism underlying this result, density functional theory (DFT) calculations are performed on both the LaSrGa3O7‐based and LaPbGa3O7‐based materials, revealing a new chemical bonding effect on the incorporation of mobile oxygen interstitial defects in melilites. For LaSrGa3O7‐based melilites, the interstitial oxygens have cooperatively weak antibonding interactions with the framework oxygen atoms (Of). This antibonding Oi‐Of interaction pushes Oi toward a 3‐linked Ga ion, enhancing the covalent bonding between this Ga ion and Oi. In addition, the antibonding Oi–Of interaction makes the oxygen interstitial defects and framework atoms highly active, benefiting the migration of defects. In contrast, for LaPbGa3O7‐based materials, the 6s2 electrons of Pb2+ point toward the c‐axis and form antibonding with framework O2−. This antibonding projects into the tunnel void, thereby directly hindering the entrance of interstitial oxygen atoms into the pentagonal rings.
Exploiting Lithium‐Depleted Cathode Materials for Solid‐State Li Metal Batteries
Authors: Wang Li‐Ping , Wang Tai‐Shan , Yin Ya‐Xia , Shi Ji‐Lei , Wang Chun‐Ru , Guo Yu‐Guo
Published: June 2019

Solid‐state lithium metal batteries (SSLMBs) may become one of the high‐energy density storage devices for the next generation of electric vehicles. High safety and energy density can be achieved by utilizing solid electrolytes and Li metal anodes. Therefore, developing cathode materials which can match with Li metal anode efficiently is indispensable. In SSLMBs, Li metal anodes can afford the majority of active lithium ions, then lithium‐depleted cathode materials can be a competitive candidate to achieve high gravimetric energy density as well as save lithium resources. Li0.33MnO2 lithium‐depleted material is chosen, which also has the advantages of low synthesis temperature and low cost (cobalt‐free). Notably, solid‐state electrolyte can greatly alleviate the problem of manganese dissolution in the electrolyte, which is beneficial to improve the cycling stability of the battery. Thus, SSLMBs enable practical applications of lithium‐depleted cathode materials.
Tailoring of Metal Boride Morphology via Anion for Efficient Water Oxidation
Authors: Nsanzimana Jean Marie Vianney , Gong Lanqian , Dangol Raksha , Reddu Vikas , Jose Vishal , Xia Bao Yu , Yan Qingyu , Lee Jong‐Min , Wang Xin
Published: June 2019

The metal‐metalloid materials have received a massive interest as oxygen‐evolving catalysts due to their ability for charge transfer between different elements and modified electronic structures lowering the kinetic energy barriers of the electrochemical processes. Herein, a facile and systematic preparation of metal borides by chemical reduction is reported, with morphologies ranging from nanoparticles to nanosheets which is driven by a careful selection of metal salts solution. The iron doping in cobalt boride nanosheets is found to be an effective approach to further tune the water oxidation activity. The as‐prepared catalyst exhibited superior oxygen evolution performance in 1.0 m KOH as the optimized ternary CoFe boride needs an overpotential of 265 mV to achieve a current density of 10 mA cm−2 at a mass loading of 0.3 mg cm−2.
Play with objects in children with arthrogryposis: Effects of intervention with the Playskin Lift™ exoskeletal garment
Authors: Babik Iryna , Cunha Andrea B. , Lobo Michele A.
Published: June 2019

Children with arthrogryposis multiplex congenita (AMC) often exhibit arm movement impairments that can negatively impact activities of daily living, such as reaching, object exploration, object play, and self‐care. This study evaluated the effects of intervention involving the Playskin Lift™ (Playskin) exoskeletal garment on arm function during object play for children with AMC. Seventeen children with AMC (5 males; 6–35 months at the beginning of the study) were tested in their homes biweekly with and without the Playskin throughout a 1‐month Baseline, 4‐month Intervention, and 1‐month Post‐Intervention. Within sessions (assistive effects), children contacted and manipulated objects more while wearing the Playskin; they also showed greater intensity, complexity, and variability of behaviors performed during free play, as well as increased play space and reduced number of compensatory arm and trunk flings to facilitate reaching. Across time (rehabilitative effects), children significantly improved their visual–manual coupling as well as their ability to lift objects from a surface and to manipulate objects using one hand; in addition, children exhibited greater multimodality, variability, and intensity of their play behaviors. Current results suggest the Playskin Lift™ may serve as an effective assistive and rehabilitative device to improve play for children with arm movement impairments.
Multipartite Quantum Clock Synchronization under The Influence of Unruh Thermal Noise
Authors: Zhang Li , Jing Jiliang , Fan Heng , Wang Jieci
Published: June 2019

A protocol for multipartite quantum clock synchronization is performed under the influence of Unruh thermal noise. The dynamics of multipartite quantum system consisting of Unruh–DeWitt detectors when one of the detectors is accelerated are obtained. To estimate the time difference between the clocks, the time probability is calculated and how the probability is influenced by the Unruh thermal noise and other factors is analyzed. It is shown that both relativistic motion and interaction between the atom and the external scalar field affect the choice of optimal number of excited atoms in the initial state, which leads to a higher clock adjustment accuracy. Time probabilities for different types of initial states approach the same value in the limit of infinite acceleration, while tend to different minimums with increasing number of atoms. In addition, the accuracy of clock synchronization using a pair of entangled clocks in two‐party system is always higher than in a multipartite system, while the optimal Z‐type multipartite initial state always performs better than the W‐type state.
The Scattering Problem in PT‐Symmetric Periodic Structures of 1D Two‐Material Waveguide Networks
Authors: Wu Huizhou , Yang Xiangbo , Tang Yan , Tang Xiaopeng , Deng Dongmei , Liu Hongzhan , Wei Zhongchao
Published: June 2019

A PT‐symmetric periodic structure with two‐material waveguide networks is constructed. In this study, how changing the number of cells affects the transmission properties is investigated. The results show that the PT‐unbroken (broken) region of the system is only determined by the cell structure, regardless of the number of unit cells. This means that any system has the same exceptional points (EPs), regardless of the number of cells and as long as the cell structure is consistent. In addition, it is confirmed that the coherent perfect absorbers and lasers (CPA lasers) occur in our model. The transfer matrix method is used to derive a sufficient condition for achieving the CPA laser point. A simple, effective formula for predicting the CPA laser state in an N unit cell system is derived.