bluuebunny/crossref_metadata_2025 huggingface dataset:
Methicillin-resistant coagulase-positive staphylococci in new, middle-aged, and old veterinary hospitals in southern Thailand: A preliminary study
Authors: Soimala Tanawan , Wasiksiri Siriwat , Boonchuay Kanpapat , Wongtawan Tuempong , Fungwithaya Punpichaya
Published: February 2024

Background and Aim: Methicillin-resistant coagulase-positive staphylococci (MRCoPS) cause pyoderma, dermatitis, and nosocomial infection. Numerous factors, including indiscriminate antimicrobial use (AMU) in veterinary medicine, cleaning practices, and AMU in hospitals, contribute to MRCoPS. However, the relationship between hospital age and MRCoPS has not yet been investigated. This study aimed to estimate the prevalence of MRCoPS in the treatment and operation rooms of new, middle-aged, and old veterinary hospitals.

Materials and Methods: Samples were collected from small animal hospitals in Surat Thani, Nakhon Si Thammarat, and Songkhla in Thailand. Hospitals were defined as those that had been in operation for 5 years (new, n = 5), 5–15 years (middle-aged, n = 6), or >15 years (old, n = 3). Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry was used to identify 280 samples, and duplex polymerase chain reaction was used to identify resistance genes (mecA and blaZ). The VITEK2® automated system was then used to determine the minimum inhibitory concentration.

Results: A total of 57 Staphylococcus species were identified and classified as coagulase-positive staphylococci (CoPS) (22/57, 38.60%) or coagulase-negative staphylococci (35/57, 61.40%), respectively. Nine of the 22 CoPS (40.90%) harbored the mecA gene, and 21 isolates (95.45%) harbored the blaZ gene. Interestingly, more MRCoPS was found in new hospitals (six isolates) than in middle-aged (one isolate) and old hospitals (two isolates), although there was no statistically significant difference in the presence of MRCoPS across new, middle-aged, and old veterinary hospitals (p = 0.095), Kruskal–Wallis test. There is a need for further detailed studies, including an increase in the number of hospitals in various locations.

Conclusion: MRCoPS is a nosocomial pathogen that causes zoonotic and recurrent infections in veterinary hospitals. The prevalence of MRCoPS tended to be higher in new hospitals. Areas with heavy animal contact, such as hospital floors, are areas of particular concern, and cleaning/disinfection of these areas must be highlighted in hygiene regimens.

Keywords: antimicrobial susceptibility, methicillin resistance, Staphylococcus spp.
Integração latino-americana em disputa?
Authors: Vuono Gabriel Dib Daud de , Iglecias Wagner Tadeu
Published: February 2024

O presente artigo discute os modelos de integração que têm sido historicamente objeto de disputa na América Latina, abordando-se de que maneira essas tensões políticas repercutem na trajetória de três décadas de integração do Mercosul. Assim, objetivou-se realizar uma sistematização das concepções de integração latino-americana a partir da compreensão dos regionalismos desenvolvimentista, aberto, pós-liberal e pós-hegemônico, e a partir desse entendimento, buscou-se analisar a dinâmica da integração do Mercosul sob os consensos regionais que se formaram em torno das distintas tendências do regionalismo latino-americano. A metodologia empregada propõe um estudo interdisciplinar no campo das ciências humanas e sociais, de abordagem qualitativa, o qual realizou-se mediante os procedimentos de revisão bibliográfica e pesquisa documental. Os resultados obtidos apontam que o Mercosul está em constante disputa entre diferentes projetos, ora baseados em preceitos neoliberais, voltados ao regionalismo aberto e centrados em uma dinâmica econômica-comercial liberalizante, ora reformistas que propõem uma perspectiva multidimensional ao processo de integração, que incorporam novas agendas ao bloco, como a social e participativa, sem, contudo, promover uma ruptura de sua vocação econômica liberalizante.
desafio em catalogar acervos especiais
Authors: Corrêa Maria de Jesus Reis , Rolo Ester Souza , Gomes Priscila do Socorro dos Santos , Rocha Leandro de Sousa
Published: February 2024

Este artigo apresenta o processo de catalogação do acervo em Braille da biblioteca pública Arthur Vianna, tem-se em vista a especificidade de um acervo Braille que carece de um tratamento apropriado que nem sempre pode ser oferecido pelas instituições, o presente trabalho visa explanar sobre as necessidades, desafios e as conclusões alcançadas para que o mesmo possa ser catalogado e incluído no acervo de maneira que possa ser recuperado, desse modo, baseando-se na literatura e nas experiências proporcionadas na profissão, chegou-se à conclusão de procedimentos que poderiam ser adotados para que o usuário pudesse ter mais autonomia, sendo utilizado sinalização e organizando o acervo fazendo uso do Cutter, sem esquecer da forma como o documento deve ser integrado nos sistemas de informação.
Desinformação na mídia
Authors: Vieira Larissa Machado , Cordeiro Douglas Farias
Published: February 2024

Trabalho em formato de Resumo Expandido.
Memória e(m) resistência no discurso
Authors: Oliveira Júlia dos Santos , Ruiz Marco Antonio Almeida
Published: February 2024

Este trabalho tem como objetivo analisar os sentidos construídos pelas redes sociais acerca de uma ditadura da beleza (im)posta ao corpo feminino e que continua, a passos largos, influenciando historicamente os sujeitos a seguirem certos padrões cristalizados numa memória social. Mais especificamente, observamos duas instâncias discursivas que, de um lado, idealiza a beleza a partir da padronização do corpo e da língua, ratificando o discurso dominante de se manter “adequados” e de sucesso, e de outro, resiste a tais pré-construídos, fomentando novos imaginários e cenários de resistência acerca da mulher e de seu corpo livre. Utilizaremos para esta nossa empreitada dois perfis do Instagram, @cintiachagass e @ju_romano, influenciadoras digitais que possuem um número de seguidores expressivo e, de certo modo, contribuem com os dizeres sobre o corpo da mulher, a idealização de beleza e de uma língua “ideal”. Logo, trata-se de observarmos a oposição de duas memórias que retomam não só os fatos e acontecimentos da história evidenciando um setor mercantil e, por consequência, o lucro, mas também promovendo todo o interdiscurso que o inclui como dominante. Para nossa construção analítica, utilizamo-nos das reflexões teórico-metodológicas da análise do discurso de matriz francesa, em especial as noções de memória discursiva e acontecimento, heranças de Michel Pêcheux (2008, 2010).
O Low Profile e o deus da voz de trovão
Authors: Perico Graciano Daniel
Published: February 2024

Partimos da hipótese de que em tempos de exploração da mais-valia a partir do uso de redes sociais, o low profile pode representar uma forma de resistência por meio da limitação do compartilhamento de informações pessoais e redução da exposição na web. Isso porque, ao compartilharmos nossas informações pessoais nas redes sociais, estamos fornecendo dados para que sejam utilizados para fins de manutenção das relações de poder políticas e econômicas. Para mostrá-lo, este artigo faz uma análise de um enunciado do portal de notícias UOL, no qual há críticas à figura polêmica do low profile. Para realizar essa análise, valemos-nos de alguns pressupostos análise do discurso materialista, ainda que os conceitos não apareçam de maneira explicita, com o intuito de democratizar este ensaio ao acesso de leitores não especializados.
A histeria como materialidade e subversão
Authors: Caetano Almeida Kamila
Published: February 2024

A partir da interlocução entre textos de Michel Foucault, teorias de desconstrução do sujeito que problematizam as teorias clássicas da Psicanálise e a discussão de gênero e performatividade estabelecida por Judith Butler, este ensaio tem por objetivo produzir uma tentativa de cartografia do sofrimento corpóreo e psíquico nomeado por Fibromialgia, síndrome considerada uma histeria contemporânea que predominantemente acomete mulheres na atualidade, de modo a mapear agenciamentos e produções discursivas relativos a um tipo de manifestação que muito tem a dizer sobre as expectativas sociais aplicadas a um determinado tipo de feminilidade. Os processos de subjetivação podem ter sua enunciação inscrita no corpo – seja por processos psíquicos ou de medicalização –, por isso se faz necessário tentar abarcar nesta discussão a inextrincável relação entre poder, discurso e materialidade. O texto sugere uma revisão subversiva da expressão histeria e seus termos derivados, para, enfim, propor uma nova conotação de uso e sentido ao vocábulo que possa indexicalizar para formações discursivas e subjetividades em devir.
O político em apagamento, evidência e atenuação
Authors: Menezes Marcus
Published: February 2024

Neste ensaio, tomo como corpus duas cartilhas que tematizam a COVID-19 para as pessoas LGBT+, a saber Saúde LGBT em tempos de pandemia de COVID-19 (2020), produzida pela Secretaria Municipal da Saúde de Salvador, e Já sabe o que fazer para se proteger do novo coronavírus? Se liga (2020), produzida pelo extinto Ministério da Mulher, da Família e dos Diretos Humanos. Com base na Análise de Discurso materialista, o objetivo do presente texto é compreender como a racialidade atravessa as discursividades das cartilhas que não tratam sobre raça, mas sim gênero, sexualidade e saúde, por efeitos do silenciamento, da contradição, da metáfora, da paráfrase, da paródia etc. (MODESTO, 2021). Os gestos de análises indicam uma individua(liza)ção do sujeito pelo Estado como responsável pela saúde e como sujeito de direitos e deveres (ORLANDI, 2013). Há, em certa medida, um apagamento das relações de raça, classe e gênero. Contudo, há uma contradição: ora se apaga, ora se evidencia questões de classe. A análise aponta que, quando classe está na ordem da explicitude, a raça está sempre na ordem da implicitude. Por fim, há também um jogo de sentidos que atenuam (e apagam) as questões de raça, classe e gênero nas cartilhas.
Are alleged efficiency gains in airline mergers for real? A research on the productivity of the Brazilian airline industry
Authors: A e T Costa Francisco Augusto , De A. Gomes Rogéria
Published: February 2024

Aware of the potential concentration effects of Merger and Acquisitions operations in the market, Airlines advocate efficiency gains to justify these business combinations. Most of the literature in this area focus on mature, well-developed markets, but on the last decade two significant operations were witnessed in the Brazilian market. The methodology used in this study is comprised by a qualitative analysis complimented by an efficiency calculation, regarding the input-output relationship, using Total Factor Productivity calculations. Results show that efficiency gains on Azul-Trip merger were focused on overhead and administrative expenses and that the acquisition of Webjet by Gol provided no efficiency gains.
«2 de abril» como «lugar de memoria» y su relación con las políticas de Memoria, Verdad y Justicia
Authors: Orayen Milena
Published: February 2024

Nos proponemos trabajar las transformaciones en la memoria colectiva de un acontecimiento traumático como lo fue el conflicto bélico por Malvinas. Para ello recurrimos a un marco teórico que mediante las nociones de Memoria, Historia, «conmemoración» y «lugar de memoria» nos permiten recorrer el proceso de construcción de la conmemoración tendiente a procesar ese recuerdo que resulta haber estado íntimamente vinculado con la dictadura y con la derrota militar. Entendemos que las fuentes trabajadas nos permiten observar un devenir claramente marcado por las distintas coyunturas sociopolíticas y sus correspondientes expectativas, en las que la práctica conmemorativa tendió a silenciar o habilitar las voces e identidades de los diversos actores que construyen la memoria del 2 de abril.
Modo de vida afrocolombiano y territorialidades pesqueras en el Chocó (Colombia)
Authors: Bonfá Neto Dorival , Jiménez Reyes Luis Carlos
Published: February 2024

El Pacífico colombiano es un territorio-región ocupado en su mayoría por comunidades negras que tienen un modo de vida tradicional basado en la pesca, la agricultura y el extractivismo tradicional. Sin embargo, con la llegada de las lógicas desarrollistas, este modo de vida comienza a sufrir transformaciones que colocan las territorialidades tradicionales en confrontación con otras lógicas externas a la comunidad. Aquí se pretende (1) caracterizar el modo de vida tradicional afrocolombiano, especialmente en su relación simbólica con la pesca artesanal, (2) identificar territorialidades pesqueras y (3) analizar los conflictos territoriales presentes en Bahía Solano. Para eso, se hizo trabajo de campo con observación participante, reportes etnográficos, fotodocumentación, entrevistas con guión semiestructurado y cartografía social participativa, con el objetivo de brindar este aporte, desde una perspectiva geográfica e interdisciplinaria que aún está ausente en las investigaciones acerca de esta región. Se observa que con la inserción de las comunidades en lógicas de producción conectadas con el “afuera”, más rentables como el turismo, el narcotráfico y la pesca industrial, se superponen nuevas territorialidades. En las territorialidades nuevas y en las tradicionales el elemento “mar” es necesario para la reproducción de los modos de vida, especialmente en lo material, a través del trabajo y la alimentación.
Sobre el humanitarismo y el sujeto político en los Montes De María
Authors: Samudio Reyes Italia Isadora , Lozano Suárez Luz María , Serna S. Pedro Pablo
Published: February 2024

A partir de la descripción etnográfica, el análisis del contexto y la lectura de la evolución del conflicto, examinamos el caso del corregimiento de San José del Peñón, en el municipio de San Juan Nepomuceno, y a partir de este caso concreto abordamos críticamente el modo como se ha venido atendiendo las situaciones de emergencia de los procesos de desplazamiento interno y evidenciamos, no solo los vacíos, sino problemas profundos en la intervención que tanto el Estado como las ONG vienen realizando en la zona de los Montes de María. Estas entidades parten de una concepción de víctima que es coherente con sus procesos, y por ello su intervención humanitaria, en lugar de generar unos procesos de empoderamiento social y subjetivación política, terminan favoreciendo unas relaciones de poder, conflicto y sumisión que afecta negativamente la convivencia de estas comunidades en sus territorios. Un abordaje fenomenológico de la realidad nos permite un acercamiento descriptivo de las prácticas y las reacciones de las comunidades a los procesos de intervención de los agentes externos. Proponemos la necesidad de repensar la función de la atención humanitaria en aras de reconocer y fortalecer las organizaciones comunitarias, su trayectoria, su autonomía y sus agendas territoriales como ruta de acompañamiento que les permita reconocerse de manera autónoma como sujetos políticos, individuales y colectivos y, especialmente, como protagonistas de su historia y de su futuro.
Los Informes del Desarrollo Humano PNUD/ONU y los propósitos de aplicación de las ideas de justicia de Amartya Sen y John Rawls
Authors: de Rezende Maria José , Akira Shishito Fábio
Published: February 2024

Los marcos teórico-conceptuales presentes en los Informes del Desarrollo Humano pueden ser considerados como influencias y no como filiaciones. Esto es válido no solo para los supuestos que aparecen esporádicamente ?como es el caso de aquellos referentes a John Rawls? en los documentos, sino también para aquellas nociones más recurrentes y asentadas en las perspectivas de Amartya Sen y Mahbub Ul Haq, creadores de esos materiales. Se pretende demostrar, en este artículo, que en esos informes disfrazados por las Naciones Unidas, sus formuladores intentan aplicar algunos supuestos que han sido objeto de destaque en los debates sobre las ideas de John Rawls. Si bien no se reflexiona en profundidad sobre los desacuerdos entre A. Sen y J. Rawls en lo que concierne a la teoría de la justicia, se pretende mostrar que los RDHs no se desvían, en sus proposiciones prescriptivas, de algunas orientaciones dadas por Rawls sobre justicia y equidad.
Carotid sinus baroafferent signals contribute to cerebral blood flow regulation during acute hypotension in young males: A randomized crossover study
Authors: Ishii Kei , Izaki Tsubasa , Asahara Ryota , Komine Hidehiko
Published: February 2024

Cerebral autoregulation is an important factor in prevention of cerebral ischemic events. We tested a traditional but unproven hypothesis that carotid sinus baroafferent signals contribute to dynamic cerebral autoregulation. Middle cerebral artery mean blood velocity (MCA Vmean) responses to thigh‐cuff deflation‐induced acute hypotension were compared between conditions using neck suction soon after cuff deflation, without or with a cushion wrapped around the upper neck, in nine healthy males (aged 25 ± 5 years). Neck suction was applied close to the hypotension. The MCA Vmean response was expected to differ between conditions because the cushion was presumed to prevent the carotid sinus distension by neck suction. The cushion hindered bradycardia and depressor responses during sole neck suction. Thigh‐cuff deflation decreased mean arterial blood pressure (MAP) and MCA Vmean (Ps < 0.05) with an almost unchanged respiratory rate under both conditions. However, in the neck suction + cushion condition, subsequent MCA Vmean restoration was faster and greater (Ps ≤ 0.0131), despite similar changes in MAP in both conditions. Thus, carotid sinus baroafferent signals would accelerate dynamic cerebral autoregulation during rapid hypotension in healthy young males. Elucidating the mechanism underlying cerebral neural autoregulation could provide a new target for preventing cerebral ischemic events.
Auf neuen Wegen: Modelle für die Ausbildung in der dritten Qualifikationsebene in wissenschaftlichen Bibliotheken
Authors: Fischer Michael , Koelges Barbara
Published: February 2024

In den nächsten Jahren wird sich in den wissenschaftlichen Bibliotheken ein erhöhter Bedarf an Fachpersonal im Bereich der dritten Qualifikationsebene ergeben. Schon heute ist es zunehmend schwierig, freie Stellen in dieser Qualifikationsebene zu besetzen. Bibliotheken müssen hier neue Wege gehen und unterschiedliche Zugangsmöglichkeiten schaffen. Am Beispiel der Badischen Landesbibliothek (BLB) und des Landesbibliothekszentrums Rheinland-Pfalz (LBZ) werden verschiedene Modelle der Weiterqualifizierung von Fachangestellten für Medien und Informationsdienste (FaMIs), der Personalgewinnung für Bachelorstudiengänge und interne Trainee-Programme vorgestellt und diskutiert.
Low levels of sex hormone-binding globulin predict an increased breast cancer risk and its underlying molecular mechanisms
Authors: Zhao Shuhang , Gu Jiaojiao , Tian Yu , Wang Ruoyan , Li Wentao
Published: February 2024

Sex hormone-binding globulin (SHBG) is a serum glycoprotein exhibiting the unique feature of binding sex steroids with high affinity and specificity. Over the past few decades, there have been significant breakthroughs in our understanding of the function and regulation of SHBG. The biological role of SHBG has expanded from being considered a simple sex hormone transporter to being associated with several complex physiological and pathological changes in a variety of target tissues. Many factors can affect the plasma SHBG levels, with fluctuations in circulating levels affecting the development of various diseases, such as increasing the risk of developing breast cancer. This article reviews the clinical significance of changes in circulating SHBG levels in the development of breast cancer and the possible influence of these levels on endocrine drug resistance in hormone receptor-positive breast cancer. Higher levels of plasma SHBG significantly reduce the risk of estrogen receptor-positive breast cancer, especially in postmenopausal women. Moreover, the molecular mechanisms by which SHBG affects breast cancer risk are also summarized in detail. Finally, transcriptomics and proteomics data revealed that SHBG expression in breast tissue can effectively distinguish breast cancer from normal tissue. Additionally, the association between SHBG expression levels and various classical tumor-related pathways was investigated.
The particle s
uo in Mandarin Chinese: a case of long X0-dependency and a reexamination of the Principle of Minimal Compliance
Authors: Li Yafei , Ting Jen
Published: February 2024

X0-dependencies are known to be highly local. It has been argued that syntactic head movement can affect locality constraints. While some recent studies have revealed that verbal heads can undergo long-distance movement similar to phrasal movement, nominal categories still appear to adhere to strict locality constraints on head movement. In this context, we examine an exception, the particle suo in Mandarin Chinese, and explore its theoretical implications. We begin by showing that the X0-element suo exhibits a long dependency across every type of clausal boundary in Chinese, including finite ones. By placing suo in a typology that accommodates resumptive pronouns and Romance-type clitics, we highlight the significance of suo’s long dependency. Next, we argue that suo forms a big-DP with the relative operator; since movement of the relative operator has satisfied the locality constraint, according to Richards’ (1998. The Principle of Minimal Compliance. Linguistic Inquiry 29. 599–629) Principle of Minimal Compliance, suo can have a long dependency on its underlying position. This discussion leads us to conclude that the original formulation of the Principle of Minimal Compliance needs reexamination regarding the true meaning of exemption. Once exemption from a locality condition is separated from movement itself, both the initial data for the PMC and the behaviors of suo are accounted for.
New records of Histiotus montanus and Neoeptesicus ulapesensis (Chiroptera: Vespertilionidae) in Argentina
Authors: González Noschese Camila Sofía , Rodríguez De La Fuente Melanie , Tomasco Ivanna Haydee , Sánchez Rocío Tatiana , Díaz María Mónica
Published: February 2024

New records are provided for two species of bat from Argentina belonging to the family Vespertilionidae, Histiotus montanus and the recently described Neoeptesicus ulapesensis. These data extend the range of both species incorporating them into two new provinces. One record comes from the revision of a specimen deposited in the Colección Mamíferos Lillo for more than six decades, highlighting the importance of biological collections for studying the systematics and distribution of species.
Deterministic reflection contrast ellipsometry for thick multilayer two-dimensional heterostructures
Authors: Lee Kang Ryeol , Youn JinGyu , Yoo SeokJae
Published: February 2024

Optical spectroscopy is a powerful tool for characterizing the properties of two-dimensional (2D) heterostructures. However, extracting the permittivity information of each 2D layer in optically thick heterostructures is challenging because of interference. To accurately measure the optical permittivity of each 2D layer in a heterostructure or on a substrate with a thick insulating spacer, such as oxides, we propose deterministic reflection contrast ellipsometry (DRCE). Our DRCE method has two advantages over conventional techniques. It deterministically measures the optical permittivity of 2D materials using only the measured reflection spectra of the heterostructure, rather than dispersion fitting as in spectroscopic ellipsometry. Additionally, the DRCE is free of excitonic energy errors in reflection-contrast spectroscopy. We believe that DRCE will enable accurate and rapid characterization of 2D materials.
Full-polarization-locked vortex beam generator with time-varying characteristics
Authors: Jiang Lixin , Li Yongfeng , Yang Hao , Liang Shuang , Zheng Lin , Qin Zhe , Zhu Zhibiao , Chen Hongya , Wang Jiafu , Qu Shaobo
Published: February 2024

Vortex beams carrying orbital angular momentum (OAM) are considered to hold significant prospects in fields such as super-resolution imaging, high-capacity communications, and quantum optics. Therefore, the techniques of vortex beam generation have attracted extensive studies, in which the development of metasurfaces brings new vigor and vitality to it. However, the generation of reconfigurable vortex beams by metasurfaces at the incidence of arbitrary polarized electromagnetic (EM) waves holds challenges. In this study, an efficient and reconfigurable strategy utilizing PB phase-modulated circularly polarized waves and dynamic phase-modulated linearly polarized waves is proposed, enabling a polarization-locked fully polarization vortex beams generator. Based on this strategy, we designed and fabricated a prototype of the vortex beam generator for full polarization, which verifies the rotating Doppler effect and generates a time-varying vortex beam. All the results have been verified by simulation and measurements. In addition, the proposed strategy can be easily extended to other frequency regions and holds potential in areas such as information encryption, biosensing, and OAM multiplexing communication.
On 'Ontology'
Authors: McGrath Sam Whitman
Published: February 2024

This paper uses the concept of metalinguistic negotiation, drawn from contemporary philosophy of language, to develop a novel interpretation of Carnap and Quine’s debate about ontology. Like recent revisionary accounts of the debate, it argues that the widespread perception of first-order disagreement between the two is misleading, ascribing this misperception to Carnap and Quine’s divergent usage of “ontology” and its cognates. Once this difference is accounted for, their seemingly contradictory claims about the subject can be reconciled, as the two “talk past” each other on the semantic level. Crucially, however, this does not render their dispute merely verbal. Rather, it emerges as a remarkably consequential metalinguistic negotiation over whether the term “ontology” ought to be reinterpreted or replaced for the purposes of positive philosophical theorizing. This reading provides an account of the genuine disagreement that drove Carnap and Quine to engage in their debate and illuminates the broader metaphilosophical convictions that support each of their positions. As such, it addresses an important explanatory challenge facing members of the revisionary camp.
Structural and vibrational characteristics of Ge-S-Br glass system: ab initio calculation and Raman study
Authors:   Faculty of Information Science and Technology, Wenhua College, Wuhan, 430074, P. R. China, Han X. C. , Yu K. ,   Faculty of Information Science and Technology, Wenhua College, Wuhan, 430074, P. R. China, Bao J. Q. ,   Faculty of Information Science and Technology, Wenhua College, Wuhan, 430074, P. R. China, Tong Y. L. ,   Faculty of Information Science and Technology, Wenhua College, Wuhan, 430074, P. R. China
Published: February 2024

To improve the understanding of the structure network of chalcogenide glass, we report an investigation of the structure and vibrational property of the Ge-S-Br system chalcogenide glass. The structural origin was interpreted by the result of ab initio calculation performed on the basic units such as ethane-like(ETH) structure(Ge2S6 and Ge2Br6),edge-sharing(ES) structure Ge2S2SnBr4-n (n=0,1,2,3,4) and isolated GeSnBr4-n tetrahedron (n=0,1,2,3,4), which represent the local structure of Ge-S-Br glassy system. In addition, We have compared the experimental spectra of GeS2, GeS3Br, GeSBr2 glasses and liquid GeBr4 to the calculated main vibrational modes of basic units by ab initio calculation. The calculated vibrational modes of the GeSnBr4-n cluster are assigned by group theory. Moreover, the symmetrical stretching modes related to the Ge-S and Ge-Br bond are in accordance with the vibrational coupling theory. The variation of calculated main vibrational modes of GeSmBrn clusters reveals the structure formations of Ge-S-Br glassy system with different S/Br ratios, which can be in agreement with vibrational spectra of Ge-S-Br glass.
Comparison of CdS nano films deposited by thermal evaporation and spray pyrolysis techniques
Authors:   Physics Department, Faculty of Science, New Valley University, Egypt, Abouelkhir A. N. , Shaaban E. R. ,   Physics Department, Faculty of Science, Islamic University of Madinah, Almadinah Al-Munawarah 42351, Saudi Arabia, Tag El-Dine M. ,   Physics Department, Faculty of Science, New Valley University, Egypt, Hussain K. I. ,   Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia, Yahia I. S. ,   Laboratory for environmental and biomedical applications (NLEBA), Semiconductor Lab., Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo
Published: February 2024

Cadmium sulfide was prepared by first turning it into a powder, which was then used to evaporate heat to create thin films. Additionally, the spray pyrolysis method was used to produce films of cadmium sulfide. A structural comparison using the crystallize size and lattice parameters. Furthermore for the prepared samples, an analysis of their optical characteristics was conducted through measurements of absorbance, transmission, and reflection, resulting in the determination of the energy gap.
Synthesis, surface analysis of NiO doped Li nanoparticles for advanced photocatalytic application in waste water treatment
Authors:   Department of Physics, Govt. Arts College (Autonomous), Salem - 636007, Tamil Nadu, India, Tamil Selvi E. , Uthrakumar R. ,   Department of Physics, Govt. Arts College (Autonomous), Salem - 636007, Tamil Nadu, India, Inmozhi C. ,   Departmentof Physics, Govt. Arts College for Women, Salem - 636008, Tamil Nadu, India, Kaviyarasu K. ,   UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa,   Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape Province, South Africa
Published: February 2024

Present work that maximizes how lithium ions (Li) acting as a dopant affect the structure, morphology, optical, and electrical characteristics of nickel oxide (NiO) nanoparticles by co-precipitation method.It also reveals the face-centered cubic (FCC) structure of the yield material, as also evident by Transmission electron microscopy (TEM) results. Li ion observed TEM studies evident the size reductions of the NiO nanoparticles after capping processes. FTIR and UV-vis absorption spectroscopy reveals the functional behaviour of the composite elements and confirms the elemental existence. Photocatalytic observations reveal the dye degradation efficiency of NiO-Li composite nearly 96% against visible light irradiations.
Comparative study of the inclusion complexation of uracil and 5-fluorouracil with native and modified cyclodextrins: some theoretical and practical
Authors:   “Ilie Murgulescu” Institute of Physical Chemistry of the Roumanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania, Neacsu A. , Munteanu G. ,   “Ilie Murgulescu” Institute of Physical Chemistry of the Roumanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania, Chihaia V. ,   “Ilie Murgulescu” Institute of Physical Chemistry of the Roumanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
Published: February 2024

In this study, the inclusion complexes of α-, β-cyclodextrins and derivatives hydroxypropyl-α-, hydroxypropyl-β-cyclodextrins with uracil and the anti-cancer agent 5- fluorouracil were demonstrated by UV-Vis spectroscopy and quantum chemical calculations. The complexes stability constants and the thermodynamic parameters for the 1:1 stoichiometry inclusion complexes were obtained and compared. The thermodynamic analysis of the studied complexes showed that the inclusion reaction is an exothermic spontaneous reaction and is an enthalpy driven process for the temperature domain of 298K to 313K. Theoretical calculations were performed on complexes to examine the energetic quantities involved in the stability of the complexes. The correlation of the energy parameters obtained from experimental and theoretical data suggests a high affinity between cyclodextrins and both uracil and 5-fluorouracil molecules.
Composition dependent structural, electrical, and optical properties of p-type InSb thin film for homojunction device application
Authors:   Department of Physics, University of Lucknow, Lucknow-226007, U.P., India, Shriram K. , Awasthi R. R. ,   Faculty of Engineering and Technology, Khwaja Moinuddin Chisti Language University, Lucknow- 226013, U.P., India, Das B. ,   Department of Physics, University of Lucknow, Lucknow-226007, U.P., India
Published: February 2024

A key component of IR detectors and sources is the indium antimonide, having a narrow direct band gap of 0.17eV. The present paper deals with the fabrication, structural, electrical, and optical properties of p-type indium antimonide thin films of about 300 nm thickness by thermal evaporation technique on ultrasonically cleaned glass substrates with different compositions having formula InxSb1-x. Hall measurement indicates that the asfabricated films were p-type, having a carrier concentration of 0.435 x1018to 1.590 x1018 cm-3 and mobility of 3.29 – 6.62 cm2 /V-s for the film thickness of 300 nm. The activation energy (Ea) was determined and found to be in the range of 0.710 – 0.518 eV from the measurement of electrical resistivity of thin films in the temperature ranges of 313 K - 363 K. X-ray diffraction studies revealed the diffraction peaks (111), (220), and (311) confirm the bulk and thin film formation of InSb polycrystalline materials. The grain size (D), dislocation density(δ), and Strain (ε) have been calculated using XRD data. The lattice parameter (a=b=c) was found to be 6.7074Å from the X-ray diffraction method (XRD). The surface morphology study of thin film through scanning electron microscope reveals the formation of nano-grains with grain size ranging between 7.63 nm to 26.32 nm and surface area of 672-1343 nm2 .
Elsholtzia communis leaf extract mediated synthesis of silver nanoparticles: enhanced antioxidant, antidiabetic and antiproliferative activity
Authors:   Department of Chemistry, Manipur University, Canchipur, Manipur, India, Begum S. , Chanu K. D. ,   Institute of Bio-resources and Sustainable Development (IBSD), Takyelpat, Manipur, India, Sharma N. ,   Institute of Bio-resources and Sustainable Development (IBSD), Takyelpat, Manipur, India, Singh R. K. L. ,   Department of Chemistry, Dhanamanjuri University, Manipur, India
Published: February 2024

Nanoparticles of silver were synthesised utilising water leaf extract of Elsholtzia communis (Collett and Hemsl.) Diels (ECO). The formation of Elsholtzia communis silver nanoparticles (ECO-AgNPs) was monitored by a UV-visible spectrophotometer. From the TEM and XRD analysis, the average particle and crystallite size of ECO-AgNPs was determined as 11.38 nm and 8.52 nm, respectively. DLS studies of ECO-AgNPs showed the ζ-potential value of −59.4 mV and a polydispersity index (PDI) of 0.149. The phytochemicals responsible for the reduction of silver ions were confirmed through FTIR spectroscopy and further supported by HRLC-MS analysis. Dose-dependent antioxidant and antidiabetic activities were demonstrated by the biosynthesized nanoparticles. The antiproliferative activity of ECO-AgNPs was estimated using 3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyltetrazolium bromide (MTT) assay on HeLa, HCT 116 and A549 cell lines and their IC50 values were found to be 71.33 ± 2.89 µg/mL, 33.45 ± 0.21 µg/mL, and 28.91 ± 5.01 µg/mL, respectively. The results showed that Elsholtzia communis AgNPs have enhanced antiproliferative, antioxidant, and antidiabetic activities and may be employed as beneficial nanocompounds.
Influence of Drying on the Pore Structures of the Cell Wall
Authors:   Pulp and Paper Research Institute of Canada, Montreal, Stone J. E. , Scallan A. M. ,   Pulp and Paper Research Institute of Canada, Montreal
Published: February 2024

Using a recently proposed concept of cell wall structure based on a multiplicity of lamellae coaxial with the cell, the effect of drying on the structure of the cell wall of bleached spruce sulphite tracheids has been examined by means of nitrogen adsorption. The data suggest that in the fully water-swollen wall there are up to several hundred lamellae, each of the order of 100 Å thick, with a median separation of about 35 Å. During drying, the lamellae draw together progressively into thicker and thicker aggregates, decreasing the total pore volume, but leaving approximately the same median separation in the spaces that remain. At dryness, the pore volume remaining in the wall is negligible. During drying,the first pores to close do not reopen when the fibres are treated with water,whereas the pores that close during the later stages of drying do so. The lamellae separation after drying at 25°C and reswelling remains at a median value of about 35 Å, but it drops after drying at 105°C and reswelling to 25 Å, owing to a greater permanency of pore closure in the pores of larger size. It is tentatively suggested that a fibre dries radially inwards towards the lumen and that the pores that tend to remain closed after drying are located towards the outside of the fibre, whereas the pores that reopen easily upon rewetting after drying are located towards the lumen. Fibres of very different composition, chemical treatment and morphology, as well as native and regenerated cellulose fibres, possess a wide range of pore volumes, yet are shown to have very similar pore size distributions and it is suggested that this distribution is not therefore of biological origin, but is based on a property of the cellulose molecule. No obvious correlation was found between the fractional extent of irreversible pore closure upon drying and the composition of the fibres. In the swollen cell wall of spruce sulphite pulp fibres, which contain almost 1 cm3 water per gram of dry material, about 20 percent of the water is present in macro reticular pores (spaces between lamellae) and 80 per cent in micro reticular pores(spaces within lamellae). This ratio persists throughout the drying cycle. The relationship between cell wall porosity and the papermaking properties of fibres is discussed briefly in terms of the loss of porosity during drying and its regain during beating.
Response of early seedling inberd lines of wheat against 20% PEG6000 induced condition
Authors: Ismail E , B Ahmed Radwa , A Aboelkassem Aalaaa , Ashraf Rehab , Elghaity Safaa , Abdo Reda , Haitham MA Elsayed Haitham x
Published: February 2024

At the germination and seedling stages, the drought resistance of six genotypes of winter wheat was investigated under lab condition. PEG6000 was employed in research under controlled circumstances to simulate drought stress at 20% concentration. Our finding showed that the inbred lines (Sakha-94 x Misr-1) and (Weiber x Sids-12) demostrated highest drought tolerant. In order to achieve high yield under water stress, these lines have a great deal of potential to be incorporated with the current commercial wheat types.
Statistical musicology with therapeutic applications
Authors: Chakraborty Soubhik , Katyayan Nimisha
Published: February 2024

Scientists through their studies have revealed the healing powers of music in controlling blood pressure, negative emotions and stress. Statistics and probability have been used to analyze music successfully both in western and non-western (including Indian) music. This short communication gives what we are planning to do in our ongoing project titled Hindustani Raga Analysis Using Statistical Musicology with therapeutic applications for stress management sponsored by IDEA: Technology Innovation Hub@Indian Statistical Institute, Kolkata. The work done so far in the past few months is briefed.
Development of a credit risk evaluation system using multilayer neural networks
Authors: Espinoza Frank Edward Tadeo , Ygnacio Marco Antonio Coral
Published: February 2024

This paper deals with the development of a credit risk assessment system using multilayer neural networks. The main objective of this work is to provide a decision support tool for risk assessment, considering relevant variables in the process. To achieve this objective, the backpropagation algorithm and the Adam optimizer were used to train the model. In terms of materials and methods, a training and validation data set including relevant financial information of credit applicants was used. A multilayer neural network was implemented that made predictions and calculated the loss using the categorical cross-entropy function. The results obtained during the development of the system showed a favorable performance and a satisfactory level of accuracy in identifying and classifying different levels of credit risk. However, it is emphasized that the system does not provide absolute results; human intervention is recommended as a last resort for decision making
Impact of Preferred Written Language in Patients Discharged With Bronchiolitis From a Children’s Hospital
Authors: Jeffries Kristyn N. , Mundy Allison , Williford Dustin E. , Slagle Brittany , Filipek Jacob , Cantu Rebecca M.
Published: February 2024

OBJECTIVES

This study aimed to identify differences in length of stay and readmission in patients admitted with bronchiolitis based on preferred written language. A secondary aim was to assess adherence to providing written discharge instructions in patients’ preferred language.

METHODS

In this cross-sectional study, we included 384 patients aged 0 to 2 years discharged from 2 children’s hospitals with bronchiolitis from May 1, 2021, through April 30, 2022; patients were excluded for history of prematurity, complex chronic condition, or ICU stay during the study period. A manual chart review was performed to determine preferred written language and language of written discharge instructions.

RESULTS

Patients preferring a written language other than English had a longer length of stay compared with English-preferring patients (37.9 vs 34.3 hours, P < .05), but there was no significant difference in unplanned 7-day readmissions. All patients who preferred English and Spanish received written discharge instructions in their preferred written language; no patients with other preferred languages did.

CONCLUSIONS

Patients who preferred a written language other than English had a longer length of stay than those preferring English but there was no difference in 7-day readmissions, though power for readmissions was limited. The study also identified significant disparities in the provision of written discharge instructions in languages other than English and Spanish.
Coronary Bypass in an Adolescent With Systemic Lupus Erythematosus and Acute Coronary Syndrome
Authors: Rubio-Granda Ana , Murias Loza Sara , Covadonga Fernández Barrio Bárbara , Menéndez Cuervo Sergio , Silva Guisasola Jacobo , Concha-Torre Andrés
Published: February 2024

A 12-year-old female with active pediatric juvenile systemic lupus erythematosus presented to the emergency department because of episodes of oppressive central thoracic pain associated with pallor, sweating, and muscle weakness that persisted for >30 minutes. During the last episode, the electrocardiogram revealed alterations in cardiac repolarization coincident with progressive troponin T elevation. An angio computed tomography revealed a 20 mm long complete segmental obstruction of the proximal anterior descending artery that was confirmed by angiography. Because this extensive occlusion did not permit a noninvasive procedure, an off-pump coronary bypass of the internal mammary artery to the anterior descending artery was performed without complication. Six months after the procedure, myocardial function was good. To our knowledge, this is the first case report of an adolescent girl with acute coronary syndrome complicating juvenile systemic lupus erythematosus that was treated with a surgical procedure.
Pediatric Tuberculosis Infection Care Facilitators and Barriers: A Qualitative Study
Authors: Adusumelli Yamini , Tabatneck Mary , Sherman Susan , Lamb Gabriella , Sabharwal Vishakha , Goldmann Don , Epee-Bounya Alexandra , Haberer Jessica E. , Sandora Thomas J. , Campbell Jeffrey I.
Published: February 2024

BACKGROUND

A total of 700 000 US children and adolescents are estimated to have latent tuberculosis (TB) infection. Identifying facilitators and barriers to engaging in TB infection care is critical to preventing pediatric TB disease. We explored families’ and clinicians’ perspectives on pediatric TB infection diagnosis and care.

METHODS

We conducted individual interviews and small group discussions with primary care and subspecialty clinicians, and individual interviews with caregivers of children diagnosed with TB infection. We sought to elicit facilitators and barriers to TB infection care engagement. We used applied thematic analysis to elucidate themes relating to care engagement, and organized themes using a cascade-grounded pediatric TB infection care engagement framework.

RESULTS

We enrolled 19 caregivers and 24 clinicians. Key themes pertaining to facilitators and barriers to care emerged that variably affected engagement at different steps of care. Clinic and health system themes included the application of risk identification strategies and communication of risk; care ecosystem accessibility; programs to reduce cost-related barriers; and medication adherence support. Patient- and family-level themes included TB knowledge and beliefs; trust in clinicians, tests, and medical institutions; behavioral skills; child development and parenting; and family resources.

CONCLUSIONS

Risk identification, education techniques, trust, family resources, TB stigma, and care ecosystem accessibility enabled or impeded care cascade engagement. Our results delineate an integrated pediatric TB infection care engagement framework that can inform multilevel interventions to improve retention in the pediatric TB infection care cascade.
CONTO AO FILME, O DEVIR-BRUXA
Authors: Veiga Roberta
Published: February 2024

Nesse artigo buscamos atualizar a noção histórica de bruxa, a partir de uma análise comparada entre o filme The Juniper Tree, de Nietzchka Keene (1990), e o conto que o inspira, O Junípero, dos Irmãos Grimm. O propósito é mostrar como o filme, ao apontar para o fora-de-campo do fenômeno da caça às bruxas, através não só da narrativa e mise-en-scène, mas da melancolia que institui a ambiência cinematográfica, desloca a misoginia do conto dando lugar à condição pragmática e animista da bruxaria. Resta ainda nas ambiguidades das personagens, uma perspectiva feminista que denominamos devir-bruxa.