bluuebunny/crossref_metadata_2025 huggingface dataset:
Dependência e sistema punitivo racista brasileiro: a dupla racionalidade penal enquanto elemento do mito da democracia racial
Authors: Benitez Martins Carla
Published: September 2022

Este texto trilha caminho teórico que logre cruzar algumas compreensões sobre o desenvolvimento do capitalismo dependente brasileiro com a história de seu sistema penal. Para isso, inicia-se com duas digressões fundamentais para a construção do argumento, quais sejam as conceituações de economia política da pena e de racismo estrutural, para, em seguida, realizar uma breve descrição e reconstrução de elementos para a compreensão do escravismo brasileiro e da transição a uma modernização conservadora. Com isso, buscamos apresentar os aperfeiçoamentos e adaptações do sistema penal brasileiro nesse período desde o que denominamos como dupla racionalidade penal – declarada e oculta – capaz de movimentar um sistema penal concreto segregador, violento e marcado pelo racismo.
Trajetória e desafios da teoria marxista da dependência: contribuições e propostas
Authors: Santana Borges Rodrigo Emmanuel
Published: September 2022

O escrito faz recorte sobre a trajetória contemporânea da teoria marxista da dependência (TMD), mostrando sua crescente presença, vigor e desafios para consolidação de saltos já ensaiados em diversas direções por vários autores. Evidencia o crescente debate internacional sobre TMD e seus fundamentos, para comentar sobre avanços e desafios abertos em diversas dimensões: a geopolítica do imperialismo, capital fictício e financeirização, padrões de reprodução do capital, Estado, gênero e raça, e crítica aos desenvolvimentismos. Finaliza indicando iniciativas que buscam, no campo intelectual, aglutinar esforços para avançar nas tarefas expostas.
Economia, política e dependência: contribuições para análise do Estado e da superexploração da força de trabalho no capitalismo dependente [Adriano Nascimento; Elaine Nunes; Thays Fidelis (org.)]
Authors: Fernandes de Oliveira Karina
Published: September 2022

Resenha do livro Economia, política e dependência: contribuições para análise do Estado e da superexploração da força de trabalho no capitalismo dependente, organizado por Adriano Nascimento, Thays Fidelis e Elaine Nunes.
A luta pela democracia na América Latina
Authors: Marini Ruy Mauro
Published: September 2022

Neste artigo, Ruy Mauro Marini discute as formas de transição dos países latino-americanos das ditaduras empresariais-militares e do Estado de contrainsurgência para regimes democráticos em tempos neoliberais. O texto foi publicado originalmente na revista Cuadernos políticos em 1985 e, mais tarde, republicado com ligeiras alterações no primeiro capítulo do livro América Latina: dependência e integração, de sua autoria.
Dependência e marxismo: história, teoria e práxis revolucionária
Authors: Machado Gouvêa Marina , Nascimento Adriano , Castelo Rodrigo
Published: September 2022

Editorial do volume 14, número 1, de abril de 2022
Correspondencias entre las teorías críticas del Sur global: Samir Amin y Ruy Mauro Marini
Authors: Roffinelli Gabriela
Published: September 2022

O artigo apresenta as afinidades eletivas entre a Teoria Marxista da Dependência (TMD), desde a América Latina, e a Teoria do Sistema Capitalista Mundial (TSCM), desde África e Ásia. Em particular, são abordadas as formulações teóricas dos expoentes máximos da TMD e da TSCM, o sociólogo brasileiro Ruy Mauro Marini e o economista egípcio Samir Amin, respectivamente. Na segunda metade do século XX, Marini e Amin, partindo dos complexos problemas dos povos latino-americanos, africanos e asiáticos – como o domínio colonial, o imperialismo, o latifúndio, as relações de exploração e dominação em condições de (sub)desenvolvimento capitalista e o auge das lutas de libertação nacional e social – contribuíram para o desenvolvimento do pensamento marxista.  Por isso, defendemos que estes intelectuais e militantes políticos contribuíram para configurar um marxismo com rosto latino-americano e afroasiático por caminhos diferentes, embora finalmente confluentes
Privatização da educação: uma proposta de reflexão para além do capital
Authors: Fonseca André Dioney , Imbiriba Sousa Colares Maria Lília
Published: September 2022

A privatização da educação é um assunto visitado e revisitado nas últimas décadas sob diferentes perspectivas analíticas. O montante de estudos faz jus à complexidade e à dinamicidade de um tema que não perde seu status de atual, pois, como se sabe, o ataque privatista é contínuo e lança mão das mais diferentes estratégias para a tomada do espaço público em favor dos interesses de grupos específicos. Neste artigo, pretendemos contribuir para esse debate apresentando uma proposta de reflexão sobre o problema da privatização da educação a partir da chave conceitual “para além do capital”, de István Mészáros. Procuramos demonstrar, assim, que a existência de um serviço público gratuito no interior de um sistema essencialmente orientado para o processo de formação do lucro é uma contradição insuperável, que coloca a educação em constante ameaça. A projeção dessa problemática em uma perspectiva “para além do capital” serve justamente para explicitar os limites dos reformismos corretivos no interior do sistema e a necessidade urgente de estabelecer uma alternativa radical à atual forma de organização social, na qual a educação esteja a salvo das determinações do valor de troca.
Atuação profissional e condições de trabalho de graduados em Educação Física: uma análise com os egressos do projeto Cultura Corporal para Idosos DEF/UEM
Authors: Maria Lucca Trindade Andressa , Henrique de Lima Monteiro Jorge , Adriana Pacifico Martineli Telma
Published: September 2022

Este estudo objetivou investigar a atuação profissional e a condição de trabalho dos acadêmicos egressos do Projeto Cultura Corporal para Idosos (PROCCID) da Universidade Estadual de Maringá (UEM). Trata-se de uma pesquisa de campo realizada com seis (6) egressos do projeto. Os dados foram analisados na perspectiva do materialismo histórico. Observou-se que, atualmente, os egressos trabalham de maneira autônoma, por contrato temporário e em mais de um local. Os resultados encontrados apontam que, assim como toda a classe trabalhadora, os egressos do PROCCID encontram-se em uma situação de precarização e, apesar da contribuição da participação no projeto, isso não os poupou de um trabalho desvalorizado e precarizado.
Instituto iungo e a juventude no ensino médio: ‘projeção da vida’ subordinada ao capital
Authors: Chaves Priscila Monteiro , Formigheri Fuá de Lima Guilherme Luiz
Published: September 2022

São recuperadas contradições da contrarreforma do Ensino Médio e a inserção do Instituto iungo na Secretaria de Educação do Estado de Santa Catarina. O componente curricular Projeto de Vida é apresentado e realizada a análise de dez planos de aulas oferecidos pelo referido aparelho privado de hegemonia para orientar os professores em sua atuação. São elegidas as categorias autoconhecimento/conhecimento de si e mundo do trabalho para tal apreciação. O que se depreendeu dos documentos examinados foi a existência de uma exacerbação do individualismo preso a circunstancias particulares, com base nos entraves postos pela divisão social do trabalho, do voluntariado como valor fundamental e da reprodução de si próprio como forma de harmonia assujeitada à expropriação do trabalho pelo capital.
A geografia e a BNCC: a disciplina e a interdisciplinaridade
Authors: Dias José Antonio , Locks Geraldo Augusto
Published: September 2022

Este artigo é derivado de uma pesquisa, realizada durante o mestrado acadêmico em educação na Universidade do Planalto Catarinense (UNIPLAC), em 2021. Busca apresentar as principais características da Geografia enquanto ciência e embasar a defesa da sua especificidade, para na sua dimensão escolar, poder atender de forma plena em sua potência, socializando os saberes elaborados deste ramo do conhecimento, indispensáveis para a apreensão do movimento da realidade. É embasado em pesquisa bibliográfica e documental, na esteira do Materialismo Histórico-Dialético como método, este trabalho recorre a autores como Milton Santos (2006, 2012, 2020), Luis Carlos Freitas (2018), Julia Malanchen (2014), Dermeval Saviani (2013, 2018, 2019), Gaudêncio Frigotto (2008), Massimo Quaini (2002), Lana Cavalcanti (2012), Karl Marx (2008, 2013), Karel Kosik (2002), Raquel Maria Fontes do Amaral Pereira (2009), entre outros. A discussão demonstrou que a fragmentação do conhecimento não se resolve no plano gnosiológico, pois ela deriva da própria divisão social do trabalho, que no capitalismo, se constitui como instrumento de alienação. Evidencia-se também que as disciplinas escolares, incluindo a Geografia, correspondem ao momento analítico do processo de conhecimento. E que esta ciência é fundamental para a compreensão da realidade e indispensável em um ensino que busque o pensamento reflexivo, crítico e a emancipação de sujeitos.
A dialética entre liberdade e emancipação: do liberalismo ao socialismo na passagem do século XIX ao XX
Authors: Dezopa Parreira Públio
Published: September 2022

O presente artigo formula alguns apontamentos sobre a dialética entre liberdade e emancipação para as tradições filosóficas do liberalismo e do materialismo histórico dialético na passagem do século XIX para o XX. Toma-se como referências para essa trajetória, por parte do liberalismo, os escritos de Stuart Mill e de Isaiah Berlin. Por parte do socialismo, a investigação se baseia fundamentalmente em Marx e Engels, além de Gramsci. O conceito de natureza humana servirá de primeiro ponto de contato entre as duas correntes filosóficas, partindo dele desenvolver-se-á a relação entre liberdade e emancipação.
Crítica da necropolítica: uma abordagem marxista
Authors: Maia Eduardo
Published: September 2022

Nos anos recentes verifica-se crescente difusão do conceito necropolítica, do historiador camaronês Achille Mbembe, nos círculos acadêmicos e mesmo na mídia hegemônica. Diante da ausência de crítica ao termo, o objetivo do artigo é realizar uma crítica inicial acerca de sua pertinência. Para tanto, o conceito necropolítica, conforme apresentado no livro homônimo, é examinado através da lente marxista. Efetua-se, em um primeiro momento, uma crítica do conceito em relação à biopolítica, sua base teórica, e em relação ao potencial explicativo dos fenômenos que o termo propõe discutir. Em um segundo momento, o diálogo estabelecido por Mbembe com Marx é contestado com recurso ao autor alemão e à tradição marxista que se segue.
Marxismo e racismo estrutural na obra de Silvio de Almeida
Authors: Peres Marcos , Silva Reis Ariane Moreno da , Do Nascimento Marcela Souza
Published: September 2022

: Pretende-se neste texto analisar a ideia de racismo estrutural presente na obra de Silvio de Almeida, tendo como plano de fundo o marxismo que, ao considerar contradições relativas ao capitalismo, procura compreender sob um outro prisma a condição do negro na sociedade brasileira. Para tanto, utilizamos como método a análise bibliográfica de textos do autor e, ao mesmo tempo, dialogando com outros teóricos da questão racial e do marxismo no Brasil e no mundo. Retomando a centralidade do trabalho, Almeida defende a necessidade de fusão da luta de classes com a questão racial, compreendida como “luta de raças”, uma vez que os problemas enfrentados pelo negro são os mesmos da classe trabalhadora, precarizada e explorada. Para o autor, o Estado brasileiro está estruturado sobre os pilares do racismo e depende dele para o seu funcionamento. Assim, temos no Brasil o que o autor chama de racismo estrutural, que significa, na verdade, a questão racial arraigada à estrutura de classes da sociedade brasileira e reproduzida pelas instituições públicas e privadas.
La guerra en Ucrania desde los marxismos: capitalismo imperialista, doble estandar hacia migrantes y esfuerzos marxistas contra la guerra
Authors: Márquez Duarte Fernando David , Suárez Sánchez Lidia
Published: September 2022

Los argumentos centrales de este análisis son los siguientes: la guerra en Ucrania detonada en Febrero de 2022 es una guerra capitalista, que tiene origen en las luchas de poder de las oligarquías de Rusia, Estados Unidos (EEUU), y la Unión Europea (EU); sus compañías y élites son beneficiadas económica y políticamente de este conflicto; segundo, que la guerra muestra el racismo inherente en el capitalismo imperialista, al cerrar fronteras a migrantes del continente americano que son desplazados por conflictos y situaciones creadas por las élites del capitalismo imperialista, mientras abre sus fronteras a los desplazados de la guerra de Ucrania también causada por el capitalismo. La metodología que se desarrolló fue cualitativa, de enfoque etnográfico a partir de la técnica de observación participante en las reuniones del Comité Promotor de la Conferencia Internacional Obrera contra la Guerra y la Explotación en México y el Comité Internacional, así como la búsqueda en material hemerográfico para documentar el trato a migrantes ucranianos comparado con migrantes del continente en Tijuana y Mexicali. Con base en los hallazgos de la observación participante concluimos que el Comité tiene una postura marxista coherente: a favor de la clase trabajadora de los países involucrados y la denuncia tanto a Rusia como a EEUU, la UE y la Organización del Tratado del Atlántico Norte (OTAN) por las miles de muertes, deterioro en la calidad de vida de toda la región y las millones de personas desplazadas.
Uma crítica da ideologia do racismo
Authors: Rodrigues Rian
Published: September 2022

O racismo é para nós uma ideologia. O fato de a ideologia ter se tornado um dos conceitos mais polissêmicos que conhecemos, não impediu a consolidação de uma forte tradição teórica de tratar o racismo enquanto uma ideologia. A partir disso, iremos apresentar uma interpretação particular da ideologia, buscando o caminho traçado por Marx e Engels, para pensar sobre o racismo, o que chamaremos de ideologia do racismo. Se ideologia é expressão ideal de uma base material, o fundamento da ideologia do racismo só poderá ser encontrado em determinadas relações sociais de produção e reprodução da vida.
"Verás que tudo é mentira": os movimentos populares antiprisionais contra o genocídio racista estatal a partir da luta das Mães de Maio
Authors: Pessoa Sara de Araujo , Da Silva Lima Fernanda , De  Araujo Chersoni Felipe
Published: September 2022

Esta escrita partilhada foi desenvolvida a partir da observação participante ao “Ato Cordão da Mentira 10 anos” ocorrido no dia 1º de abril, dia da mentira e aniversário do golpe militar de 1964, realizado no centro de São Paulo/SP. Com esta pesquisa buscamos demonstrar como os movimentos populares são fortes vetores de derrubada dos muros objetivos e subjetivos do sistema de justiça penal, diminuindo a distância deste sistema e dando rostos aos milhares de processos que transformam a dor dos familiares em números. A hipótese é que a atuação nas ruas, e a denúncia da violência do Estado pelas mães de vítimas é um forte instrumento de superação deste sistema. O texto toma como base a atuação do movimento mães de maio, suas lutas e pautas, tomando como exemplo o ato do dia 1 de abril e chegando à conclusão de que esses movimentos são essenciais à luta contra o colonialismo.
Relações raciais no Brasil e o genocídio do povo negro
Authors: De Souza Dayana
Published: September 2022

Neste artigo apresentaremos o processo colonial que demarca a formação social na modernidade capitalista nos seus cunhos histórico, econômico, político e cultural do Brasil. As percepções e abordagens que ignoram o fato da representação de raça e racismo na construção social deste país, não conseguem apreender o caráter das causas estruturais de opressões.
Marighella [Wagner Moura]
Authors: Figueirêoa de Sena Júnior Carlos Zacarias
Published: September 2022

Resenha do filme Marighella (2019), de Wagner Moura.
Otávio Brandão: depoimento 1977
Authors: Brandão Rego Octávio
Published: September 2022

Na esteira das rememorações do centenário do Partido Comunista Brasileiro (PCB), Germinal: marxismo e educação em debate, vem publicando, ao longo deste ano, uma série de documentos, artigos e resenhas no sentido de apresentar, para o conjunto das suas leitoras e leitores, parte da história da classe trabalhadora. Esta história, grande medida, se entrelaça a trajetória de lutas do PCB no Brasil. Neste número, evidenciamos Octávio Brandão, militante histórico da organização centenária
A experiência revolucionária moçambicana
Authors: Cabaço José Luís de Oliveira
Published: September 2022

A revista Germinal convidou o professor José Luís de Oliveira Cabaço para partilhar com nossas leitoras e nossos leitores suas reflexões acadêmicas sobre a empresa colonial na África assim como suas experiências na Frente de Libertação de Moçambique (Frelimo). Sua tese, intitulada Moçambique: identidades, colonialismo e libertação, foi premiada pela Associação Nacional de Pós-graduação e Pesquisa em Ciências Sociais (Anpocs) e publicada em 2009 pela Editora Unesp. Hoje é docente emérito da Universidade Técnica de Moçambique e tem importantes análises sobre o tema divulgadas em livros e artigos.
O Comitê editorial, formado por Jaqueline Botelho (UFF), Márcia Lemos (Uesb) e Muniz Ferreira (UFRRJ) agradece ao professor o aceite do convite e sua valiosa contribuição ao responder com generosidade e rigor analítico às questões apresentadas.
Treatment of Warts With Needle-Free Injection of Fluorouracil
Authors: Wu Yue , Wang Fei
Published: September 2022

This case report describes 2 men in their 20s who presented with warts that were treated with a needle-free injection of fluorouracil.
Dermatology Societies Should Explore Fossil Fuel Divestment
Authors: Fadadu Raj P. , Williams Mary L. , Rosenbach Misha
Published: September 2022

This Viewpoint describes the importance of dermatology societies and health care organizations divesting from fosile fuel investments to help mitigate the effects of climate change.
Validation of Quality Indicators Targeting Low-Value Trauma Care
Authors: Moore Lynne , Bérubé Mélanie , Tardif Pier-Alexandre , Lauzier François , Turgeon Alexis , Cameron Peter , Champion Howard , Yanchar Natalie , Lecky Fiona , Kortbeek John , Evans David , Mercier Éric , Archambault Patrick , Lamontagne François , Gabbe Belinda , Paquet Jérôme , Razek Tarek , Belcaid Amina , Berthelot Simon , Malo Christian , Lang Eddy , Stelfox Henry Thomas
Published: September 2022

Importance

Reducing low-value care has the potential to improve patient experiences and outcomes and free up health care resources. Sixteen quality indicators were recently developed targeting reductions in low-value trauma care based on a synthesis of the best available evidence, expert consensus, and patient preferences.

Objective

To assess the validity of quality indicators on low-value trauma care using trauma registry data.

Design, Setting, and Participants

Data from an inclusive Canadian provincial trauma system were used in this analysis. Included were all admissions for injury to any of the 57 provincial adult trauma centers between April 1, 2013, and March 31, 2020. Metrics for quality indicators were developed iteratively with clinical experts.

Main Outcomes and Measures

Validity was assessed using a priori criteria based on 5 parameters: frequency (incidence and case volume), discrimination (interhospital variation), construct validity (correlation with quality indicators on high-value care), predictive validity (correlation with quality indicators on risk-adjusted outcomes), and forecasting (correlation over time).

Results

The study sample included 136 783 patient admissions (mean [SD] age, 63 [22] years; 68 428 men [50%]). Metrics were developed for 12 of the 16 quality indicators. Six quality indicators showed moderate or high validity on all measurable parameters: initial head, cervical spine, or whole-body computed tomography for low-risk patients; posttransfer repeated computed tomography; neurosurgical consultation for mild complicated traumatic brain injury; and spine service consultation for isolated thoracolumbar process fractures. Red blood cell transfusion in low-risk patients had low frequency but had moderate or high validity on all other parameters. Five quality indicators had low validity on at least 2 parameters: repeated head CT and intensive care unit admission for mild complicated traumatic brain injury, hospital admission for minor blunt abdominal trauma, orthosis for thoracolumbar burst fractures, and surgical exploration in penetrating neck injury without hard signs.

Conclusions and Relevance

This cohort study shows the feasibility of assessing low-value trauma care using routinely collected data. It provided data on quality indicators properties that can be used to decide which quality indicators are most appropriate in a given system. Results suggest that 6 quality indicators have moderate to high validity. Their implementation now needs to be tested.
A mouse model of lung cancer induced via intranasal injection for anticancer drug screening and evaluation of pathology
Authors: Tanaka Ryo , Yoshinouchi Shosei , Karouji Kento , Tanaka Yuki , Tominari Tsukasa , Hirata Michiko , Matsumoto Chiho , Itoh Yoshifumi , Miyaura Chisato , Inada Masaki
Published: September 2022

The pathologies and lethality of lung cancers are associated with smoking, lifestyle, and genomic factors. Several experimental mouse models of lung cancer, including those induced via intrapulmonary injection and intratracheal injection, have been reported for evaluating the pharmacological effect of drugs. However, these models are not sufficient for evaluating the efficacy of drugs during screening, as these direct injection models ignore the native processes of cancer progression in vivo, resulting in the inadequate pathological formation of lung cancer. In the present study, we developed a novel intranasal injection model of lung cancer simulating the native lung cancer pathology for anticancer drug screening. A mouse lung cancer cell line (Lewis lung carcinoma; LCC) was intranasally injected into mouse lungs, and injected cell number‐dependent cancer proliferation was apparent in both the left and right lungs. Human non‐small‐cell lung cancer (NCI‐H460) cells were also intranasally injected into nude mice and similarly showed injected cell number‐dependent cancer growth. For the pharmacological evaluation of cisplatin, two different treatment frequencies were tested four times per month and twice a month. The intranasal injection model confirmed that cisplatin suppressed lung cancer progression to a greater extent under the more frequent treatment condition. In conclusion, these results indicated that our intranasal injection model is a powerful tool for investigating lung cancer pathology and may aid in the development of new anti‐lung cancer agents.
Catalytic Synergies in Bimetallic RuPt Single–Atom Catalysts via Speciation Control
Authors: Giulimondi Vera , Ruiz–Ferrando Andrea , Clark Adam H. , Kaiser Selina K. , Krumeich Frank , Martín Antonio J. , López Núria , Pérez–Ramírez Javier
Published: September 2022

Bimetallic single–atom catalysts (b–SACs) have recently gained prominence by virtue of the unique catalytic cooperative interactions they can exhibit, intertwining electronic and geometric effects. To date, research efforts have exclusively focused on direct mechanisms such as electron density transfer or sequential reactivity. Herein, the first study on indirect, coordination–induced catalytic synergies in carbon‐supported RuPt SACs is conducted. To this end, a holistic approach is developed, combining i) precision synthesis, ii) advanced characterization, iii) exploration of single–site adsorption properties via the hydrogen evolution reaction, and iv) modeling through density functional theory. Despite the lack of both intermetallic coordination in the first or second shell and charge redistribution effects, the RuPt SACs exhibit a H2 formation rate enhanced up to 15–fold compared with their monometallic counterparts. To unfold the origin of the intermetallic cooperativity, modifications of the structural and catalytic properties induced by the integration of a second metal species are investigated. Thus, Pt atoms are found to selectively occupy the most energeticallyfavorable cavities in the support, prompting Ru atoms to assume a distinct, more active, configuration. This contribution unveils a novel principle of bimetallic cooperativity, demonstrating the key role of integrative experimental and computational analyses in studying b–SACs.
Barrierless Exciton Self‐Trapping and Emission Mechanism in Low‐Dimensional Copper Halides
Authors: Xing Zengshan , Zhou Zhicong , Zhong Guohua , Chan Christopher C. S. , Li Yanyan , Zou Xinhui , Halpert Jonathan E. , Su Haibin , Wong Kam Sing
Published: September 2022

Low‐dimensional copper halides having nontoxic elements are attracting increasing attention for their peculiar emission properties. Self‐trapped excitons (STEs) account for their high photoluminescence quantum yields (PLQYs) with emission that can stretch across the entire visible spectrum. However, intrinsic factors that influence the formation or loss of the emissive species in low‐dimensional copper halides remain elusive. Here, a comprehensive study on the STE formation dynamics of one‐dimensional CsCu2I3 and zero‐dimensional Cs3Cu2I5 is presented. It is found from STE kinetic analysis that a slower STE formation demonstrated by the 1D structure is not hindered by a potential barrier, but instead related to the number of phonons released in the self‐trapping process. It is further revealed that in 1D CsCu2I3, the non‐radiative recombination of STEs mainly occurs via the intersection between the STE state and the ground state in the configuration coordinate diagram, placing an intrinsic limit on the PLQY at room temperature. These findings show that the STE formation is affected by both the self‐trapping depth and the phonon energy as opposed to a potential barrier in low‐dimensional copper halides. The better understanding of STE formation and recombination processes provide basis for improving design and performance for broadband light emitting devices.
A Genetically Engineered Biofilm Material for SARS‐CoV‐2 Capturing and Isolation
Authors: Özkul Gökçe , Kehribar Ebru Şahin , Ahan Recep Erdem , Köksaldı İlkay Çisil , Özkul Aykut , Dinç Bedia , Aydoğan Sibel , Şeker Urartu Özgür Şafak
Published: September 2022

The novel severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is continuously infecting people all around the world since its outbreak in 2019. Studies for numerous infection detection strategies are continuing. The sensitivity of detection methods is crucial to separate people with mild infections from people who are asymptomatic. In this sense, a strategy that would help to capture and isolate the SARS‐CoV‐2 virus prior to tests can be effective and beneficial. To this extent, genetically engineered biomaterials grounding from the biofilm protein of Escherichia coli are beneficial due to their robustness and adaptability to various application areas. Through functionalizing the E. coli biofilm protein, diverse properties can be attained such as enzyme display, nanoparticle production, and medical implant structures. Here, E. coli species are employed to express major curli protein CsgA and Griffithsin (GRFT) as fusion proteins, through a complex formation using SpyTag and SpyCatcher domains. In this study, a complex system with a CsgA scaffold harboring the affinity of GRFT against Spike protein to capture and isolate SARS‐CoV‐2 virus is successfully developed. It is shown that the hybrid recombinant protein can dramatically increase the sensitivity of currently available lateral flow assays for Sars‐CoV‐2 diagnostics.
All‐Solid‐State Synthesis of High‐Performance Electrocatalysts for Oxygen Reduction Reaction Derived From g‐C3N4 and Cobalt Phthalocyanine
Authors: Wang Yaping , Liu Meiyang , Zhang Yi , Yi Qingfeng , Yi Ruowei
Published: September 2022

Herein, a combined method for planetary ball milling and pyrolysis of g‐C3N4/cobalt phthalocyanine mixture to synthesize Co nanoparticles loaded on CN nanosheets (g‐C3N4@CoPc‐x with different mass ratios x of g‐C3N4:CoPc) is proposed. The synthesized catalysts exhibit a unique 3D open sheet‐like structure, and the average size of Co particles is 4.45 nm while encouragingly, a small amount of quasi single‐atom cobalt (mean particle size 0.5 nm) is also found in the samples. In addition, the mass ratio of g‐C3N4 to CoPc presents a significant effect on ORR activity of the samples. Among the samples, g‐C3N4@CoPc‐3 shows excellent ORR performance with the onset potential of 0.94 V in neutral condition and the half‐wave potential of 1.00 V in alkaline condition, both better than Pt/C. Its onset potentials in acidic (0.83 V) and alkaline (1.07 V) conditions are also comparable to Pt/C. In a full pH range (acidic, alkaline, and neutral) electrolyte, the prepared samples catalyze ORR via a direct four‐electron reaction pathway, and the C3N4@CoPc‐3 reveals high catalytic stability and high anti‐alcohol tolerance. Results provide wide feasibility for the synthesis and application of g‐C3N4@CoPc‐3 in fuel cells.
Polymetallic Hybrid Nanoplatform with Hyperthermia‐Amplified Dual Enzyme‐Like Activities for Efficient Speeded‐Up Bacterially Infected Wound Healing
Authors: He Xiaojun , Deng Zaian , Hou Ji‐Ting , Sun Xiaoshuai , Jiang Danfeng , Kwon Nahyun , Ye Lisong , Obeng Enoch , Hu Rongdang , Wang Yi , Zan Xingjie , Yoon Juyoung , Shen Jianliang
Published: September 2022

Antibiotic‐independent artificial nanozymes exhibit excellent biocatalytic activity, and can generate sufficient reactive oxygen species (ROS) for potential applications in the field of anti‐infective therapy. However, single nanozymes often catalyze the production of ROS with low yield and low utilization, resulting in low antibacterial activity. To address the above refractory concern, a spike‐like surface nanoparticles (CAC NPs) platform is built that possesses intrinsic dual enzyme‐like (oxidase and peroxidase‐like) activities and photothermal conversion capacity with near‐infrared irradiation (NIR‐I) to quickly capture and effectively eliminate the bacteria and biofilm. Upon NIR‐I irradiation, CAC NPs have exerted an excellent biocatalytic antibacterial effect through a hyperthermia‐amplified dual enzyme‐like activities strategy. As predicted, the results show CAC NPs can eradicate bacteria in the subcutaneous tissues of mice and promote the healing of inflamed tissues with no significant side effects in vivo. Collectively, this work reveals the potential of NIR‐assisted dual enzyme‐like activities for antimicrobial therapy and provides broad prospects for antimicrobial drugs and strategies.
Exploring the Generality of PVP‐Assisted Phase Transfer of Nanoparticles
Authors: Xue Feng , Zhang Aodi , Peng Xudong , Zhou Shiyan , Feng Guoxu , Chen Hongyu , Wang Hong
Published: September 2022

For most nanoparticles, the synthetic environment usually differs from the application environment, making phase transfer a critical bottleneck in the exploration of nanotechnology. Herein, a general phase transfer method by using polyvinyl pyrrolidone (PVP) and an intermediate solvent is demonstrated. A variety of nanoparticles can be transferred into different media, such as water, polar organic solvent, nonpolar solvent, and polymer precursor, while maintaining their colloidal stability. In the traditional methods of two‐phase transfer, the initial solvent is a powerful competitor, which greatly limits the window of applicable conditions. A two‐step approach where the incubation with the intermediate solvent removes the initial solvent and allows sufficient time for ligand exchange is designed. This avoids the complications caused by partial ligand exchange at the limited area of the interface. Such a method of general phase transfer to different solvents and the understanding of the underlying mechanism would broaden the application of nanomaterials.
RuH‐Catalyzed Synthesis of 1,3‐Diaryl Ketones via Cross‐Coupling of Aromatic Enones with Aromatic Aldehydes and Mechanistic Insights
Authors: Kuwahara Takashi , Fukuyama Takahide , Picard Baptiste , Ryu Ilhyong
Published: September 2022

RuHCl(CO)(PPh3)3‐catalyzed cross‐coupling of alkenyl ketones with aldehydes has been extended to the synthesis of 1,3‐diaryl 1,3‐diketones. The reaction has been successfully applied to the synthesis of PPT (propyl pyrazole triol), a selective estrogen receptor modulator compound. A study of the stoichiometric reaction of phenyl vinyl ketone with RuHCl(CO)(PPh3)3 has revealed that the β‐ruthenium ketone PhCOCH2CH2RuCl(CO)(PPh3)2, a five‐membered ruthenacycle is formed with liberation of one molecule of PPh3. The observed catalytic activity of this ruthenacycle in the presence of PPh3 suggests that it serves as a resting state, in equilibrium with an oxa‐π‐allyl ruthenium species, which is the key coupling partner with aldehyde substrates.

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Distribution of core content coverage among three popular emergency medicine podcasts: A 10‐year analysis
Authors: Mannix Alexandra , Rehman Maham , Saak Julia , Gore Katarzyna , Parsons Melissa , Gottlieb Michael
Published: September 2022

Objective

Podcasts are increasingly utilized as educational tools within emergency medicine (EM). As EM residency programs seek to incorporate asynchronous educational material, it is important to ensure we are covering the full breadth of EM core content. This study sought to describe the distribution of EM core content among three popular EM podcasts.

Methods

We performed a retrospective study of the distribution of podcast topics among three popular EM podcasts from July 2011 to June 2021. We evaluated the podcast episode content and alignment with the EM core content, as defined by the Model of the Clinical Practice of Emergency Medicine (MCPEM) and American Board of Emergency Medicine (ABEM) examination distribution. Data are presented descriptively.

Results

We identified 2759 podcast episodes, consisting of 7413 total topics and 2498.7 hours of content. The most frequently covered topics were “signs, symptoms, and presentations” (20.1% of total hours vs. 7.9% of MCPEM and 10.0% of ABEM exam) and “procedures and skills integral to the practice of emergency medicine” (14.8% of total hours vs. 8.1% of MCPEM and 8.0% of ABEM exam). The least frequently covered topics was were “immune system disorders”(0.5% of total hours vs. 2.0% of MCPEM and 2.0% of ABEM exam),“environmental disorders”(0.8% of total hours vs. 2.4% of MCPEM and 2.0% of ABEM exam), “obstetrics and gynecology” (1.0% of total hours vs. 5.4% of MCPEM and 3.0% of ABEM exam), and “cutaneous disorders” (0.9% of total hours vs. 4.3% of MCPEM and 3.0% of ABEM exam).

Conclusions

Our findings suggest an imbalance of MCPEM core content in three popular EM podcasts.
Von lokalen kovalenten Bindungen zu langreichweitigen elektrischen Wechselwirkungen der Protonenhydratation
Authors: Ekimova Maria , Kleine Carlo , Ludwig Jan , Ochmann Miguel , Agrenius Thomas E. G. , Kozari Eve , Pines Dina , Pines Ehud , Huse Nils , Wernet Philippe , Odelius Michael , J. Nibbering Erik T.
Published: September 2022

Scheinbar einfache und doch überraschend schwierig ist die Untersuchung überschüssiger Protonen in Wasser, die ein komplexes Quantenobjekt mit starken Wechselwirkungen zum ausgedehnten und sich dynamischen ändernden Wasserstoffbrücken‐Netzwerk der Flüssigkeit darstellen. Die auftretende Protonenhydratation spielt eine entscheidende Rolle im Energietransport von Brennstoffzellen und bei der Signalübertragung in Transmembranproteinen. Während Geometrie und Stöchiometrie bereits umfangreich in Experimenten und in der Theorie adressiert worden sind, ist die elektronische Struktur dieser spezifischen hydratisierten Protonenkomplexe bisher Verborgenen geblieben. In dieser Studie zeigen wir, Schicht für Schicht, wie der Einsatz neuer Flachstrahltechnologie für akkurate röntgenspektroskopische Messungen in Kombination mit Infrarot‐Spektralanalyse sowie Berechnungen es uns ermöglicht, orbitalspezifische spektrale Signale zu finden, die es erlauben zwei Haupteffekte in der elektronsichen Struktur zu unterscheiden: Lokale Orbitalwechselwirkungen bestimmen kovalente Bindungen zwischen dem Proton und den benachbarten Wassermolekülen, während Verschiebungen der Orbitalenergien ein Maß für die Stärke des langreichweitigen elektrischen Feldes des Protons sind.
From Local Covalent Bonding to Extended Electric Field Interactions in Proton Hydration
Authors: Ekimova Maria , Kleine Carlo , Ludwig Jan , Ochmann Miguel , Agrenius Thomas E. G. , Kozari Eve , Pines Dina , Pines Ehud , Huse Nils , Wernet Philippe , Odelius Michael , Nibbering Erik T. J.
Published: September 2022

Seemingly simple yet surprisingly difficult to probe, excess protons in water constitute complex quantum objects with strong interactions with the extended and dynamically changing hydrogen‐bonding network of the liquid. Proton hydration plays pivotal roles in energy transport in hydrogen fuel cells and signal transduction in transmembrane proteins. While geometries and stoichiometry have been widely addressed in both experiment and theory, the electronic structure of these specific hydrated proton complexes has remained elusive. Here we show, layer by layer, how utilizing novel flatjet technology for accurate x‐ray spectroscopic measurements and combining infrared spectral analysis and calculations, we find orbital‐specific markers that distinguish two main electronic‐structure effects: Local orbital interactions determine covalent bonding between the proton and neigbouring water molecules, while orbital‐energy shifts measure the strength of the extended electric field of the proton.
Poly(ethylene oxide)‐Based Composite Electrolyte with Lithium‐Doped High‐Entropy Oxide Ceramic Enabled Robust Solid‐State Lithium‐Metal Batteries
Authors: Liu Weijie , Jiang Jianbo , Yang Zhihao , Liu Yang , Yang Zhengfei , Bu Manman , Liao Shuangxiong , Wu Weiying , Huang Tieqi , Sang Shangbin , Liu Hongtao
Published: September 2022

Solid polymer electrolytes using poly(ethylene oxide) (PEO) as matrix are mostly applied due to the superior Li+ transfer ability of oxyethyl chain. However, the high crystallinity, low oxidation potential window, and insufficient mechanical strength hinder PEO deployment in solid‐state batteries. Here, a novel composite solid electrolyte combined PEO with a lithium‐doped high‐entropy oxide (Li0.25HEO) ceramic powder is presented, which exhibits excellent properties for solid‐state lithium metal battery applications. On one hand, the rich oxygen vacancies of Li0.25HEO surface are favorable to capturing anionic groups (e. g. TFSI−), reinforcing the Li+ dissociation. On the other hand, Li0.25HEO with abundant Lewis acid sites markedly promotes the PEO oxidation potential window. Additionally, the incorporation of Li0.25HEO ceramic powder can effectively inhibit the PEO crystallization and enhance the mechanic strength of the composite electrolyte as well. The assembled solid‐state lithium metal battery based on the composite solid electrolyte exhibits high rate capacity and durable cycle performance, showing potential development and application prospects.
Non‐Noble Metal‐Catalyzed Carbonylative Multi‐Component Reactions
Authors: Xu Jian‐Xing , Wang Le‐Cheng , Wu Xiao‐Feng
Published: September 2022

Carbonylative multi‐component reactions (CMCR), having four or more kinds of starting materials, provide an efficient strategy for the preparation of polyfunctional carbonylated compounds. Diverse CMCR utilizing non‐noble transition‐metal catalysts have been developed. This review summarized and discussed the recent advances in non‐noble metal‐catalyzed carbonylative multi‐component reactions.
Taranga DR1: Analysis of TESS Short Cadence data for years 1 and 2
Authors: Nandakumar Sangeetha , Barbieri Mauro , Tregloan‐Reed Jeremy
Published: September 2022

TESS (Transiting Exoplanet Survey Satellite) was launched in 2018 with the purpose of observing bright stars in the solar neighborhood to search for transiting exoplanets. After the completion of the 2‐year nominal mission, TESS has provided 2 min cadence photometry of over 200,000 stars. This large collection of light curves opens the possibility to study the statistical and temporal properties of this ensemble of stars. Most of the currently available data pipelines are designed to work on single sector at a time. We present a new TESS data pipeline called Taranga, with the purpose of merging multi‐sector light curves, while performing a period search for all the observed stars, and stores the statistical results in a database. Taranga pipeline has three components which (a) processes the PDCSAP fluxes of each sector and creates merged PDCSAP light curve, (b) performs a similar operation on the SAP fluxes, and (c) generates the periodograms of the merged SAP and PDCSAP light curves while performing peak identification. For all the 232,122 stars observed in Short Cadence in the nominal TESS mission, we provide the merged PDCSAP and SAP light‐curves along with their periodograms. We provide a database that has the statistics of all the results produced from Taranga of these stars.
Cyber‐harassment victimization of Portuguese adolescents: A lifestyle‐routine activities theory approach
Authors: Vale Maria , Pereira Filipa , Spitzberg Brian H. , Matos Marlene
Published: September 2022

Cyber‐harassment refers to a pattern of repeated, intentional, and unwanted annoyances, impositions, threats, or other aggravating actions mediated by Information and Communication Technologies. Globally, substantial proportions of adolescents experience cyber‐harassment, resulting in a host of deleterious health‐related consequences. This study tested the empirical utility of the Lifestyle‐Routine Activities Theory in accounting for adolescent cyber‐victimization. A representative sample of 627 adolescents, aged 12–16, enrolled in schools from northern Portugal and Azores, were surveyed. Consistent with the theoretical assumptions, older adolescents, who used tablets, published information on social network profiles, added unknown people as friends, met face‐to‐face with them, and had parents with less knowledge of their online contacts were at increased risk of being cyber‐victimized. Theoretical and practical implications are elaborated.
Investigation the Ductility of Corrugated Embedded Shear Connectors Through Push‐out Tests
Authors: Németh Gábor , Kovács Nauzika
Published: September 2022

The most widely used shear connector of steel‐concrete composite beams is the well‐known headed stud and it can be used for innovative bridge girders with trapezoidal webs embedded in concrete slab as well by horizontally placing the studs on the embedded steel part. Another option for trapezoidal web girders is the closed or open cuts on the corrugated web profile with rebars. In literature, experimental tests and investigation of these kind of shear connectors of embedded steel webs can be found. The focus of the research presented in the paper is on the ductility of embedded trapezoidal corrugated webs with additional mechanical shear connectors. Previous researches have already found that these kind of innovative shear connections have a really advantageous ductile behavior, however further analysis is useful to confirm and investigate their behavior in more details. Force‐displacement diagrams of push‐out experiments of corrugated steel profiles embedded into concrete slab are published in literature and those diagrams serve as a basis of this study. Both elastic and plastic phases of the curves are evaluated, also ductility is analyzed according to the principles of Eurocode.
Experimental Investigation of Shear Effects in Ultra‐Lightweight Concrete Encased CFS Structural Members
Authors: Hegyi Péter , Horváth László , Dunai László , Ghazi Al‐Abedi Ahmed Mohammed
Published: September 2022

A building system, promising cost‐efficient residential buildings, is under development. The system uses cold‐formed steel as load‐bearing member and encases it in polystyrene aggregate concrete, a special ultra‐lightweight concrete, which plays building construction roles, and provides increment of load‐bearing capacity, too. Previous research was focusing on individual member design for axial and flexural effects. In order to provide 3D rigidity for buildings horizontal effects (wind load, earthquake, imperfections) should also be considered. The load transfer of the investigated structural system is significantly different for horizontal and vertical (gravitational) actions thus the previously derived design method has to be expanded to describe the resistance against horizontal actions. This paper briefly introduces the building system and deals with some of the components necessary for providing 3D rigidity. Shear panel tests were carried out in order to identify the stiffness, failure mode and load‐bearing capacity of panels. Then two types of panel connection were investigated: (i) slab‐to‐wall, and (ii) wall‐to‐wall. Tests aimed to study the failure mode and load‐bearing capacity of joints. Test‐based design values were determined based on measured data.
Structural Dynamic and Buckling Behaviour of Steel Cold‐formed Polygonal Conic Pole for Antennas Support
Authors: de Miranda Batista Eduardo , de Lazzari João Alfredo , Matsubara Gustavo Yoshio , Pfeil Michèle
Published: September 2022

Support for antennas placed as high as 40‐50m demands traditional trussed steel or pole towers, the former with much larger base area than the later and the consequences for the costs of the ground occupancy. This aspect is of upmost importance for both urban and rural areas and the reason for the development of higher steel poles with polygonal cross‐section, searching for slender thin‐walled structures. The present research focus is cold‐formed steel conic twenty‐sided polygon solution allowing 40‐50m high antenna support, for which one must deal with the following challenges: (i) wind‐induced dynamic behavior, (ii) buckling analysis, (iii) localized stress concentration close to the openings along the pole, (iv) connection solution that strongly affects the erection procedure and (v) the fatigue effect. Beyond these aspects, results of the dynamic behavior, elastic buckling, nonlinear structural behavior until the collapse and design procedures for the computation of the structural strength of the steel pole are presented and commented, revealing the importance of structural analysis by combining tailored numerical tools as the finite strip and the finite element methods, as well as frequency domain methods for smooth and turbulent wind actions. Additional CFD and experimental wind tunnel results should be considered for advanced structural design, as well as experimental structural analysis to confirm the set of numerical results and the design procedures adopted for the steel polygonal poles.