bluuebunny/crossref_metadata_2025 huggingface dataset:
Heat and Mass Transfer on Unsteady MHD Chemically Reacting Rotating Flow of Jeffrey Fluid Past an Inclined Plates under the Impact of Hall Current, Diffusion Thermo and Radiation Absorption
Authors: Hari Babu Kommaddi  , Raghunath Kodi  , Charankumar Ganteda  , Giulio Lorenzini
Published: January 2024

An analytical solution for two dimensional unsteady MHD free convective double diffusive heat and mass transfer rotating flow of viscous incompressible optically thin non Newtonian fluid (jeffrey fluid) past a semi-infinite porous plate in the presence of generation of heat absorption with hall current, radiation absorption and Dufour effects are presented in this paper. Lorentz force is applied perpendicular direction to the plate with a first-order chemical reaction. The governing PDEs transformed into ODEs by applying the perturbation technique. The effects of various physical parameters like Hall current, heat absorption, radiation parameter, radiation absorption parameter, Grashof number, modified Grashof number, Dufour effect, magnetic field parameter, inclined angle, chemical reaction parameter, etc., are studied with graphically. Temperature profile is increased by raising the values of Dufour effect, radiation absorption parameter and reverse effect of the heat absorption parameter and also concentration profile distribution is downfall by raising the values of Schmited number, chemical reaction parameter. Another significant finding of the current study is that the numerical data are displayed with the use of Matlab programmes to investigate the outcomes of the skin friction solution. the rate of heat and mass transfer at the wall rising under the influence of Dufour effect. Tables, graphs, and reports can be used to display the impact of all pertinent parameters.
Mikrobiyal Pigmentlerin Gıdalarda Renklendirici Olarak Kullanılması
Authors: Çakmak Sancar Burcu , Öztürk Muhsin , Akhan Meryem , Ergün Özer
Published: January 2024

Günümüzde tüketicilerin sentetik gıda boyaları ile ilgili olumsuz düşüncelerinin yaygınlaşması doğal kaynaklardan elde edilen renklendiricilere olan talebi artırmıştır. Doğal kaynaklı renklendiriciler bitki, hayvan ve mikroorganizmalardan elde edilmektedir ve biyorenklendirici olarak ifade edilmektedir. Bunlardan mikroorganizmalardan elde edilen pigmentler, sağlık üzerine yararlı etkileri ve üretimdeki çeşitli avantajları sebebiyle tercih edilmektedir. Çeşitli mikroorganizmalar (Monascus, Flavobacterium, Bacillus, Paracoccus, Streptomyces, Penicillium, Rhodotarula, Brevibacterium vb. mikroorganizmaların çeşitli türleri) pigment üretme yeteneğine sahiptir; β-karoten, arpink red, riboflavin, monascus pigmenti, prodigiosin ve likopen başlıca üretilen pigmentlerdir. Mikrobiyal pigmentlerin, kolay ekstrakte edilebilmeleri, üretim maliyetlerinin düşük olması, hammadde sorunu olmaması, çevre dostu olmaları gibi çeşitli avantajları mevcuttur. Bununla birlikte bazı mikrobiyal pigmentlerin suda çözünmemesi, farklı pH koşulları altında renk değişiklikleri göstermeleri, tat değişikliğine yol açmaları, daha sınırlı renk yelpazelerinin olması gibi dezavantajları da vardır. Bu derleme mikroorganizmaların gıdalarda kullanılan renk pigmentleri ile ilgili temel bilgileri sunmaktadır.
Ergenlerde Kendine Zarar Verme Davranışı, Çocukluk Çağı Örselenme Yaşantıları ve Duygu Düzenleme Becerileri: Olgu Kontrol Çalışması*
Authors: Demir Asma Pınar , Çakın Memik Nursu
Published: January 2024

Amaç: Bu çalışma kendine zarar verme davranışı olan ergenlerde çocukluk çağı örselenme yaşantıları ile duygu düzenleme becerileri arasındaki ilişkilerin incelenmesi amacıyla yapılmıştır.
Yöntem: Kesitsel ve tanımlayıcı tipteki araştırmanın örneklemini Kocaeli Üniversitesi Çocuk ve Ergen Ruh Sağlığı ve Hastalıkları Anabilim Dalı Polikliniğinde tedavi görmekte olan 12-17 yaş arasındaki, 48 olgu grubu ve 48 kontrol grubu olmak üzere toplamda 96 katılımcı oluşturmaktadır. Katılımcılara ait veriler, sosyodemografik veri formu, kendine zarar verme davranışı değerlendirme envanteri, duygu düzenleme güçlüğü ölçeği ve çocukluk çağı örselenme yaşantıları ölçeği aracılığıyla toplanmıştır. İlgili veriler SPSS 21 paket programıyla analiz edilmiştir.
Bulgular: Çalışmanın sonucunda kontrol grubu ile karşılaştırıldığında olgu grubundaki katılımcıların, istatistiksel açıdan anlamlı derecede daha fazla duygu düzenleme güçlüğü yaşadığı ve çocukluk çağında daha fazla örselenme yaşantısına maruz kaldığı sonuçları elde edilmiştir (p<,05). Aynı şekilde çocukluk çağı örselenme yaşantıları, duygu düzenleme becerileri ve kendine zarar verme davranışının ilişkili olduğu bulunmuştur.
Sonuç: Çocukluk döneminde deneyimlenen örselenme yaşantılarının ergenlerin duygu düzenleme becerileri üzerinde olumsuz etkilerinin olduğu bu durumun da kendine zarar verme davranışını yordadığı bulunmuştur. Ergenlerde kendine zarar verme davranışının önlenmesi için erken çocukluk döneminde maruz kalınan ihmal ve istismar yaşantılarının önüne geçilmesi önerilmektedir.
Neonatal Pnömonide Hemşirelik Bakımı
Authors: Söngüt Semra
Published: January 2024

Neonatal pnömoni, başta bakteriler olmak üzere çeşitli mikroorganizmaların neden olduğu, yüksek mortalite ve morbidite potansiyeli olan ciddi bir solunum yolu enfeksiyon hastalığıdır. Neonatal pnömoni, özellikle gelişmekte olan ülkeler için önemli bir sağlık sorunu olmaya devam etmekte olup, Dünyada her yıl 1 yaşından küçük 152.000-490.000 bebeğin pnömoniden öldüğü bildirilmektedir. %1-35 arasında insidansa sahip olan neonatal pnömoni, term bebekler için %1, preterm bebekler için ise %10 sıklığında görülmektedir. İnsidans; gebelik yaşı, entübasyon durumu, yenidoğan bakım düzeyi ve standardı, ırk ve sosyoekonomik duruma göre değişiklik göstermektedir. Pnömoniye bağlı ölüm oranı genellikle gebelik yaşı ve doğum ağırlığı ile ters orantılıdır. Neonatal pnömoniler başlangıç zamanına göre “Konjenital ve Erken Başlangıçlı Pnömoni” ile “Geç Başlangıçlı Pnömoni” olarak sınıflandırılmakta olup, maternal, perinatal ve mekanik ventilasyon gibi pek çok risk faktörü bulunmaktadır. Neonatal pnömonide klinik belirtiler spesifik olmayıp, semptomlar arasında çeşitli derecelerde solunum sıkıntısı, şüpheli görünen trakeal aspiratlar, öksürük, apne, unstabil vücut sıcaklığı, yetersiz beslenme, abdominal distansiyon ve letarji yer almaktadır. Bu doğrultuda pediatri hemşireleri, pnömoni tanısı bulunan yenidoğanların hemşirelik bakımında çoğunlukla destekleyici bakım uygulamakla birlikte, bebeğin solunum durumu ve oksijenasyonunu, sıvı durumunu ve sepsis riskini rutin olarak izlemesi ve değerlendirmesi gerekmektedir.
Comparison of Physiotherapy and Rehabilitation Department Students in terms of Physical Activity Levels, Balance Levels and Muscle Endurance Values
Authors: Kapan Aysu , Özdemir Ayşem Ecem , Kaya Sağlam Öznur , Çağlar Engin , Kethüdaoğlu Mustafa Oğuz , Kaçar Zeynep
Published: January 2024

Aim: This study aims to compare the physical activity levels, balance levels and muscular endurance values of Physiotherapy and Rehabilitation students among grades. Thus, it will be determined to what extent students apply the knowledge they learned in the courses to their own lives.
Method: For the aim of our study, balance and trunk endurance, which are physical fitness parameters related to health, and physical activity levels were examined. Snowball randomization method was used in our study. 36 students (15 male, 21 female) volunteered to participate in our study. Y Balance Test was used for dynamic balance assessment, the Flamingo Balance Test for static balance assessment, the McGill Endurance Tests for endurance assessment, and the International Physical Activity Questionnaire for physical activity levels. SPSS 24.0 program was used in statistical analysis of data and significance value was accepted as p<0.05.
Results: There was no difference between groups of students included in the study in terms of age, body mass index and gender parameters (p>0.05). There was no statistically significant difference between groups in dynamic balance, static balance, all directions of endurance and physical activity levels (p>0.05). When the relationship between students' physical activity levels and balance–endurance values was examined, no significant relationship was found in any parameter (p>0.05) except for left-sided endurance (p<0.05).
Conclusion: As a result of our study, it was seen that there was no difference between degrees in terms of dynamic balance, static balance, endurance and physical activity levels of Physiotherapy and Rehabilitation students. When physical activity results were examined, it was seen that there were very few students in the inactive group. Based on this, we can say that Physiotherapy and Rehabilitation students are successful in applying the knowledge they learned in lectures in their own lives. We recommend increasing the number of participants in future studies.
Bergen Vardiyalı Çalışanlarda Uyku Ölçeği’nin Türkçe Geçerlik ve Güvenirlik Çalışması
Authors: Bütün Ahmet , Aslan Sinan , Şanlı Mehmet Emin , Dinç Mahmut , İnci Ramazan
Published: January 2024

Amaç: Bu çalışmada, hemşirelerin uyku kalitesini değerlendirilmesinde kullanılmak üzere Bergen Vardiyalı Çalışma Uyku Ölçeği’nin (BVÇUÖ) Türkçe geçerlilik ve güvenirlik çalışmanın yapılması amaçlanmıştır.
Yöntem: Metodolojik türde yapılan çalışmaya üç vardiyalı çalışan bir üniversite hastanesinin servislerinde çalışan 324 hemşire katıldı. Çalışmanın teorik modelini doğrulamak için IBM SPSS AMOS 26 yazılımı kullanılarak Yapısal Eşitlik Modeli (SEM) kullanılmıştır. Ölçeklerin iç güvenilirliğini test etmek için Cronbach’s alpha (α) testi kullanılmıştır. Ayrıca çalışmada yakınsak ve ayırt edici geçerlilik testleri uygulanmış olup, bileşik güvenirlik (CR), çıkarılan ortalama varyans (AVE) ve faktör yükleri kullanılarak incelenen yakınsak geçerlilik, ölçülerin birbiriyle nasıl ilişkili incelenmiştir.
Bulgular: Ölçeğin geçerliğini değerlendirmede yedi öğretim üyesinin uzman görüşü alındı ve öneriler doğrultusunda hazırlanan ölçeğe pilot uygulama sonrası son şekli verildi. Ölçeğin iç tutarlık analizinde Cronbach alfa güvenirlik katsayısı α=0,90 olarak bulundu. Bergen Uykusuzluk Ölçeği ile Bergen Vardiyalı Çalışma Uyku Ölçeği arasında pozitif yönde anlamlı ilişki bulunmuştur (r= 0,434;p=0,001).
Sonuç: Bu çalışmada Bergen Vardiyalı Çalışma Uyku Ölçeği’nin Türkçe’ye uyarlama çalışmaları sonucunda 22 madde ve 6 alt boyuttan oluşmuştur ve ölçek oldukça iyi psikometrik özelliklere sahip olduğunu göstermiştir.
Gebeliğin Term ve Geç-Term Dönemlerinde Oksidatif Stresin ve Eser Elementlerin Değerlendirilmesi
Authors: Aksoy Esra Güler , Bahtiyar Nurten , Karakullukçu Savaş Gamze , Sevinç Avşar Leyla , Çoban Kayan Betül Nur , Akdemir Nermin , Aydemir Birsen , Cinemre Fatma Behice
Published: January 2024

Amaç: Gebelik, yüksek metabolik turnover (yapım-yıkım) ve doku oksijen kullanımı nedeniyle oksidatif stresin hakim olduğu fizyolojik bir durumdur. Çalışmamızda, gebeliğin term ve geç-term dönemlerinde oksidatif hasar belirteci olan malondialdehit (MDA) ve iskemi-modifiye albümin (IMA) ve bazı eser element düzeylerindeki değişiklikleri araştırmak amaçlandı.
Yöntem: Çalışmada, sefalik prezentasyonlu ve anne yaşı 18-40 arasında olan term (n=80) ve geç-term (n=64) dönemlerinde olan toplam 144 tekil gebenin olduğu bireyler değerlendirildi. Serum IMA düzeyleri albumin kobalt bağlama (CAB) testi ve MDA düzeyleri tiyobarbitürik asit reaktif maddeler (TBARS) yöntemi ile ölçüldü. Selenyum (Se), demir (Fe), bakır (Cu), mangan (Mn) ve çinko (Zn) düzeyleri indüktif eşleşmiş plazma optik emisyon spektrofotometresi (ICP-OES, Thermo iCAP-6000) ile ölçüldü.
Bulgular: Serum MDA ve IMA düzeylerinin geç-term grupta term grubundan yüksek olduğu, fakat serum Zn, Cu ve Se düzeyleri geç-term gebelerde term gebelere göre daha düşük olduğu bulunmuştur. Fe ve Mn değerlerinde anlamlı bir değişim bulunmamaktadır.
Sonuç: Çalışmamızda, gebeliğin geç-term dönemlerinde oksidatif stres belirteçleri olarak IMA ve MDA düzeylerinin yükseldiği yani oksidatif stresin arttığı belirlenmiştir. Bu bulgular, gebeliğin geç-term dönemlerinde bu oksidatif stresin kaynağı ve etkilerinin araştırılmasına ışık tutacak öncül sonuçlardır.
Manejo odontológico de pacientes tratados con bifosfonatos: Una revisión sistemática
Authors: Gómez Rea Iván Alejandro , Rizo Méndez Vinicio , Rodriguez Chávez Itzel , Venegas Navarro María Elia Noemi
Published: January 2024

Los bifosfonatos son medicamentos comúnmente empleados en el tratamiento de enfermedades óseas como la osteoporosis y el cáncer óseo. Este documento se propone identificar precauciones odontológicas al tratar pacientes bajo tratamiento con bifosfonatos. La revisión sistemática siguió las directrices actualizadas de PRISMA 2009, analizando artículos de los últimos 10 años con fecha de búsqueda hasta 2013. Estos medicamentos preservan la densidad ósea y reducen la reabsorción ósea, pero su uso prolongado o en dosis elevadas puede ocasionar efectos secundarios, siendo la osteonecrosis de los maxilares (ONM) uno de los más graves. La ONM, caracterizada por la muerte del hueso de mandíbula o maxilar por falta de suministro sanguíneo, puede resultar en dolor, infección y pérdida dental. Por ello, es crucial que los dentistas ejerzan precaución al tratar a pacientes con bifosfonatos, quienes deben informar su uso. Se recomienda a los dentistas adoptar medidas preventivas, como procedimientos menos invasivos y la prescripción de antibióticos antes y después de intervenciones, para mitigar el riesgo de ONM.
Online Data Accessibility of Pesticide Registered Trademarks Found in Crop Areas in Calimaya, México
Authors: Homem de Abreu Loureiro Guilherme Amorim , Escalona Valdez Rodrigo Antonio , Juan Pérez José Isabel , Amaya Chávez Araceli , Sánchez Meza Juan Carlos
Published: January 2024

La información de seguridad y técnica de las marcas registradas de plaguicidas es fundamental para el correcto manejo de estas sustancias por los agricultores. La accesibilidad a dicha información puede reducir el riesgo de daños a la salud humana y al ambiente. En general los agricultores solo disponen de la información de la etiqueta del plaguicida (EP). Por lo tanto, es fundamental que los agricultores tengan también el acceso a la ficha de datos de seguridad (FDS) y la ficha de datos técnicos (FDT) en los sitios web oficiales de las empresas fabricantes o comercializadoras (EFC). Dada la relevancia del tema, el presente estudio tuvo por objetivo analizar la disponibilidad de datos online de seguridad y técnicos de plaguicidas utilizados en áreas de cultivo en el Altiplano Mexicano y sus respectivos estatus de registro sanitario. La metodología del estudio se divide en dos etapas: trabajo de campo y metaanálisis de datos de Internet. Mediante trabajo de campo y recolección de envases vacíos en áreas de cultivo fueron identificadas las marcas comerciales de plaguicidas (MCP) y sustancias activas de plaguicidas. Posteriormente se buscó en internet la ET, la FDS, la FDT y el registro sanitario nacional. Además de estos datos primarios, se analizó la información obtenida de bases de datos internacionales y trabajos científicos. El 68% de las MCP tienen los tres documentos en línea: ET, FDS y FDT. El 87% de las EFC cuentan con registros de plaguicidas altamente peligrosos con estatus de vigencia indeterminada o activa.
Relecturas filosóficas del suicidio en diálogo con El Mito de Sísifo de Albert Camus
Authors: Latella-Calderón Lino , Villasmil Espinoza Jorge Jesús , Ríos Ramírez Andrea Elizabeth
Published: January 2024

El suicidio es un fenómeno existencial que pone al límite la voluntad humana de extinción del ser, razón por la cual Albert Camus (1985) lo definió en su momento como el único problema filosófico realmente importante. Mediante una metodología fenomenológica y hermenéutica, que describe subjetividades y fenómenos y, al mismo tiempo, reconstruye sus significados, el objetivo de la presente investigación fue reinterpretar filosóficamente el fenómeno suicidio, en diálogo con El Mito de Sísifo de Albert Camus. Además, se efectuó una entrevista en profundidad a una persona depresiva con ideación suicida, como condición de posibilidad para comprender sus inquietudes y motivaciones sobre el tema. Se concluye que la depresión (mayor) es, en buena medida la causa primaria del suicidio en las sociedades modernas y, por su complejidad intrínseca y multifactorial demanda de un abordaje interdisciplinario que afirme el valor de la vida, más allá de las problemáticas ontológicas propias del ser y del hacer de la persona humana en su cotidianidad.
Aplicación efectiva de estrategias multimodales en los Programas Nacionales de Formación por parte de los Docentes de la Universidad Nacional Experimental de las Telecomunicaciones e Informática
Authors: Onaindía Avendaño Karen
Published: January 2024

El presente artículo tiene como objetivo principal explorar la aplicación efectiva de estrategias multimodales, utilizadas por parte de los docentes de la Universidad Nacional Experimental de las Telecomunicaciones e Informática (UNETI), con el fin de favorecer el aprendizaje en las distintas Unidades Curriculares (UC) que se gestionan en los Programas Nacionales de Formación (PNF) de pregrado en las áreas de Telecomunicaciones e Informática. La idea central abordada es cómo la implementación de estrategias multimodales, que involucran el uso de diferentes medios de representación, puede potenciar el proceso de aprendizaje de los estudiantes, brindándoles la oportunidad de explorar los contenidos desde diversas perspectivas y enfoques, lo que facilita una comprensión profunda de cada temática. Se destacan algunas experiencias de cómo los docentes aplican de manera efectiva estas estrategias y se exploran las opiniones de los estudiantes sobre el uso de herramientas innovadoras en todo el proceso formativo de los contenidos especializados.
La sistematización de experiencias por compromiso: Un camino metodológico innovador y emancipador para la generación, consolidación y apropiación de saberes transformadores
Authors: Vásquez R. Yusmey L.
Published: January 2024

La sistematización de experiencias por compromiso permite fundamentar aprendizajes bajo una profunda crítica y autocrítica de estos, posibilitando maneras para consolidar bases de saberes y conocimientos que conducen a una visión de construcción social, donde se tiene en cuenta la transformación de la realidad basada en la práctica, vivencias y el sentir desde una cosmovisión. En todo proceso que llevamos a cabo, se requiere de un camino metodológico que conlleve a elegir una gama de posibilidades de construcción de acciones, intencionalidades, marcos conceptuales y prácticas a alcanzar; en este escrito se propone la Sistematización de experiencia por compromiso, como un método idóneo, crítico y emancipador, que da lugar primeramente a la apropiación de aprendizajes, generación y consolidación de saberes; así como al impulso de acciones descolonizadoras de participación activa y protagónica, como vía para crear voluntades mediante procesos de formación y transformación.
RESEARCH ON THE RULES OF ESG PERFORMANCE AND VALUE CREATION BASED ON ROUGH SETS
Authors: Hu Xue , Zhu Weidong , Zhang Chao , Zhang Tianjiao , Zhang Chen
Published: January 2024

In the context of global sustainable development, the relationship between environmental, social responsibility, and governance (ESG) performance and multi-stakeholder value creation has been widely discussed. However, there is a complex causal relationship between ESG performance and value creation, many firm characteristics are involved, and there is no systematic study on them. In this study, we aim to explore the relationship between ESG performance and value creation, the joint role of firms’ internal and external characteristics in this relationship, and how the three components of ESG performance act on value creation through their various configurations. To identify complex causal relationships among variables, this study introduces rough sets method to describe these configuration relationships by generating rules. We use China’s 300 CSI-listed companies on the Shanghai and Shenzhen Stock Exchanges from 2015 to 2020 as research samples and find that firms with good ESG performance are more likely to have high-efficiency value creation; moreover, this relationship exists only among firms with specific characteristics. Additionally, different combinations of ESG components may have a differential impact on value creation, and we identify four configurations that generate high-efficiency value creation. This study contributes to guiding companies to strengthen their ESG practices and rationally allocate resources.
EXPLORING EFFICIENCY GROWTH OF ADVANCED TECHNOLOGY-GENERATING SECTORS IN THE EUROPEAN UNION: A STOCHASTIC FRONTIER ANALYSIS
Authors: Dzemydaitė Giedrė , Naruševičius Laurynas
Published: January 2024

This study investigates the efficiency growth of advanced technology-generating sectors within the European Union (EU). Using a stochastic frontier analysis of annual sector-level panel data from 2000 to 2019, we examine sectoral (NACE two-digit level) and territorial implications. Our findings indicate that technological change was more intense in advanced technology-generating sectors than in other economic sectors, primarily driven by fixed capital investments. However, the impact of in-house research and development varied. Economic sectors such as pharmaceuticals and motor vehicles struggled to improve their production efficiency due to high competition and market specificity. A comparative analysis of EU economies showed a lower level of production efficiency in catching-up economies. Nevertheless, these economies contributed to the shift of the production possibility frontier in certain sectors on the EU level. Therefore, this study contributes to the ongoing scientific discussion on technological innovations in diverse territories, suggesting that less-developed economies could generate technological advancements in specific areas. We also discuss the implications for innovation and industrial policy actions.
SEISMIC MITIGATION EFFECT FOR LARGE-SPACE UNDERGROUND STRUCTURES CONSIDERING SPATIALLY VARYING SOIL PROPERTIES
Authors: He Zhiming , Chen Qingjun
Published: January 2024

The seismic response of the large-space underground structure (LSUS) is significantly influenced by the physical properties of the surrounding soil media, while the soil owns a strong spatial variability. This study proposes a seismic response analysis process of the soil-LSUS interaction system is proposed, which can consider the characteristic of the spatially distributed soil properties. The proposed process begins with establishing the spatially random field model of the soil properties using the improved latent space method. Then, the model is calibrated based on the real data and Bayesian approach, and the realization of the random field is accomplished. Further, the soil-LSUS interaction finite element (FE) model is established, which incorporating the soil physical properties generated from the random field. Finally, the nonlinear time-history analysis of the soil-LSUS interaction FE model is conducted. As an illustration of the proposed process, a typical LSUS located in Guangzhou is selected as an example, and the seismic mitigation measure which the lead-filled steel tube damper (LFSTD) is installed between the intermediate column and the top beam is adopted for the LSUS. The influence of the spatial variability of soil properties on the seismic mitigation effect of the LSUS is investigated. Results indicate that the spatial variability of the soil properties can cause a minor influence on the force and deformation of the intermediate column and the energy dissipation ratio between the LFSTD and structure, while it can bring a significant influence on the maximum deformation and force and the shape of the hysteresis loop of the LFSTD.
Gnuastro: Visualizing the Full Dynamic Range in Color Images
Authors: Infante-Sainz Raúl , Akhlaghi Mohammad
Published: January 2024

Color plays a crucial role in the visualization, interpretation, and analysis of multi-wavelength astronomical images. However, generating color images that accurately represent the full dynamic range of astronomical sources is challenging. In response, Gnuastro v0.22 introduces the program astscript-color-faint-gray, which is extensively documented in the Gnuastro manual. It employs a nonlinear transformation to assign an 8-bit RGB (Red–Green–Blue) value to brighter pixels, while the fainter ones are shown in an inverse grayscale. This approach enables the simultaneous visualization of low surface brightness features within the same image. This research note is reproducible with Maneage, on the Git commit c206945.
The Abundance Pattern of The A2.5V Star HD 176687 (ζ Sagitarii A) In A Triple System
Authors: Monier Richard
Published: January 2024

The synthesis of high resolution high signal-to-noise ratio optical and IUE spectra of HD 176687 allows the determination of LTE abundances for carbon, nitrogen, oxygen, aluminum, silicon, strontium, yttrium and zirconium. Carbon, nitrogen, oxygen and silicon are found to be depleted by a factor of 0.50. Aluminum is overabundant by a factor of 2.0. Strontium is solar, yttium is overabundant by a factor of 6, zirconium has an upper limit of 1 solar. The comparison of the FUV spectral energy distribution of HD 176687 to those of standard stars confirms that its effective temperature must be about 8800 ± 200 K, slightly larger than that of the A3 V standard, α PsA.
Spectroscopic and thermodynamic characterization of the interaction of a new synthesized antitumor drug candidate 2H4MBBH with human serum albumin
Authors: Abarova Silviya , Stoitchkova Katerina , Tzonev Svetlin , Argirova Maria , Yancheva Denitsa , Anastassova Neda , Tenchov Boris
Published: January 2024

In the present work we studied the interactions of a newly synthesized drug candidate, 2-(2-hydroxy-4-methoxybenzylidene)-1-(1H-benzimidazol-2-yl)hydrazine (2H4MBBH), with human serum albumin (HSA) by fluorescence spectroscopy.

2H4MBBH-HSA binding parameters were assessed by fluorescence quenching strategy. As made clear by the concentration data, 2H4MBBH unequivocally quenched the instrinsic HSA fluorescence. The calculated Stern-Volmer quenching constant Ksv, the Ka of 2H4MBBH-HSA complexes, as well as the thermodynamic parameters ∆H°, ∆S° and ∆G°, showed that the H-bonding forces play major part in the interaction of 2H4MBBH with HSA. These calculations point to a quenching component based on 2H4MBBH-HSA static complex formation rather than energetic collisions.
Le télétravail comme facteur de résilience ; quelques leçons de cette crise Covid
Authors: Fuhrer Chantal
Published: January 2024

Notre objectif est de mieux comprendre le rôle du télétravail dans la résilience pendant la crise sanitaire liée à la covid 19. Dans la lignée des travaux sur les nouvelles pratiques numériques, cette recherche explore ce rôle dans une dynamique de résilience. C’est sous l’angle de l’engagement que nous porterons une attention particulière. Pour cela, nous analysons les résultats de cinq enquêtes en ligne réalisées entre mars 2020 et février 2021. Le corpus résulte de la compilation de cinq sources différentes : des rapports écrits en mars 2020, une enquête narrative en avril 2020, une enquête quantitative en mai 2020, une seconde enquête narrative en décembre 2020 et enfin trois groupes de discussion en février 2021. Ainsi, la transcription du discours de 1299 managers et spécialistes est étudiée selon les méthodes d’analyse de données textuelles. Nous discutons tout d’abord des liens entre le télétravail, l’optimisme et la résilience, puis nous analysons les formes d’engagement, avant d’en étudier la dynamique. Nos résultats indiquent que le rôle du télétravail diffère selon que la résilience est individuelle ou collective. Il diffère également dans le temps et selon le processus de résilience que nous suggérons de diviser en trois phases : résilience préventive (avant la catastrophe), résilience réactive (pendant la catastrophe) et résilience curative (après la catastrophe). Nous utilisons les résultats de l’étude sur la résilience pour discuter des implications pour le développement du télétravail en tant qu’outil et pratique numérique. Nos résultats mettent également en évidence certaines limites qui constituent autant de pistes de recherche futures.
Soignants en EHPAD : identification des stratégies de défense identitaire face au sale boulot
Authors: Guillot-Soulez Chloé , Roussillon Soyer Claude
Published: January 2024

Cette recherche s’appuie sur la théorie de l’identité sociale et le concept de sale boulot pour étudier les stratégies de défense identitaire des soignants en établissements d’hébergement pour personnes âgées dépendantes (EHPAD). Face à un travail dévalorisé, nous analysons les stratégies mobilisées par les soignants pour trouver ou redonner du sens à leur travail. Des entretiens semi-directifs ont été menés auprès de 65 soignants en EHPAD. Les données recueillies ont été soumises à une analyse lexicométrique à l’aide du logiciel Iramuteq. Six stratégies de défense identitaire sont identifiées : 1) défendre et recommander le métier, 2) souligner l’utilité et le sens du métier, 3) accepter l’image négative, 4) valoriser le métier en parlant des EHPAD comme de lieux de vie, 5) faire connaitre la richesse relationnelle du métier, 6) mettre en avant la difficulté à la fois physique et psychologique du métier. Ainsi, les soignants privilégient le recadrage et le recentrage comme stratégies de normalisation professionnelle. Ces résultats permettent de mieux comprendre comment les soignants en EHPAD remédient à une perte de sens au travail. Pour une véritable revalorisation de ce métier, nous identifions des leviers d’action à un niveau organisationnel, mais aussi à un niveau sociétal.
Optimal time two-mesh mixed finite element method for a nonlinear fractional hyperbolic wave model
Authors: Yang Yining , Wen Cao , Liu Yang , Li Hong , Wang Jinfeng
Published: January 2024

In this article, a second-order time discrete algorithm with a shifted parameter $ \theta $ combined with a fast time two-mesh (TT-M) mixed finite element (MFE) scheme was considered to look for the numerical solution of the nonlinear fractional hyperbolic wave model. The second-order backward difference formula including a shifted parameter $ \theta $ (BDF2-$ \theta $) with the weighted and shifted Grünwald difference (WSGD) approximation for fractional derivative was used to discretize time direction at time $ t_{n-\theta} $, the $ H^1 $-Galerkin MFE method was applied to approximate the spatial direction, and the fast TT-M method was used to save computing time of the developed MFE system. A priori error estimates for the fully discrete TT-M MFE system were analyzed and proved in detail, where the second-order space-time convergence rate in both $ L^2 $-norm and $ H^1 $-norm were derived. Detailed numerical algorithms with smooth and weakly regular solutions were provided. Finally, some numerical examples were provided to illustrate the feasibility and effectiveness for our scheme.
Bivariate step-stress accelerated life test for a new three-parameter model under progressive censored schemes with application in medical
Authors: Alotaibi Naif , Al-Moisheer A. S. , Elbatal Ibrahim , Alyami Salem A. , Gemeay Ahmed M. , Almetwally Ehab M.
Published: January 2024

In this article, a new three-parameter lifetime model called the Gull alpha power exponentiated exponential (GAPEE) distribution is introduced and studied by combining the Gull alpha power family of distributions and the exponentiated exponential distribution. The shapes of the probability density function (PDF) for the GAPEE distribution can be asymmetric shapes, like unimodal, decreasing, and right-skewed. In addition, the shapes of the hazard rate function (hrf) for the GAPEE distribution can be increasing, decreasing, and upside-down shaped. Several statistical features of the GAPEE distribution are computed. Eight estimation methods such as the maximum likelihood, Anderson-Darling, right-tail Anderson-Darling, left-tailed Anderson-Darling, Cramér-von Mises, least-squares, weighted least-squares, and maximum product of spacing are discussed to estimate the parameters of the GAPEE distribution. The flexibility and the importance of the GAPEE distribution were demonstrated utilizing three real-world datasets related to medical sciences. The GAPEE distribution is extremely adaptable and outperforms several well-known statistical models. A bivariate step-stress accelerated life test based on progressive type-I censoring using the model is presented. Minimizing the asymptotic variance of the maximum likelihood estimate of the log of the scale parameter at design stress under progressive type-I censoring yields an expression for the ideal test plan under progressive type-I censoring.
Imagens da escravidão na colonização brasileira
Authors: Bertol Domingues Heloisa Maria , Romero Sá Magali
Published: January 2024

En este artículo abordamos las imágenes de la esclavitud en Brasil en el período colonial y en los inicios del Imperio, analizando las representaciones realizadas por los artistas que acompañaron al gobierno de Mauricio de Nassau durante la ocupación del nordeste de Brasil por los holandeses, de 1637 a 1644, y el Brasil retratado por el artista de la Misión Francesa Jean-Baptiste Debret, entre 1816 y 1831. Estas imágenes se inscribieron en el imaginario común y han sido constantemente reeditadas, contribuyendo a establecer el etnocentrismo que se ha arraigado en la literatura científica y popular, produciendo huellas indelebles en el diseño de la identidad cultural del país.
 
[pt] Neste artigo discutimos as imagens da escravidão no Brasil no período colonial e no início do Império por meio da análise das representações feitas por artistas que acompanharam o governo de Maurício de Nassau durante a ocupação do Nordeste do Brasil pelos holandeses, de 1637 a 1644, e o Brasil retratado pelo artista da Missão Francesa Jean-Baptiste Debret, entre 1816 e 1831. Tais imagens foram inscritas no imaginário comum e têm sido constantemente reprisadas, contribuindo para firmar o etnocentrismo que se enraizou na literatura científica e popular, produzindo traços indeléveis no desenho da identidade cultural do país.
Madres deshumanizadas: la invisibilidad del oficio de nodriza en Cuba
Authors: Garrido Moreno Elisa
Published: January 2024

El artículo analiza la imagen de las nodrizas en Cuba, a partir del imaginario que nos ha llegado de ellas con la nodriza cubana como tema principal. Se analizan, por una parte, las escasas imágenes existentes de amas de leche cubanas en lienzo y fotografía de finales del siglo XIX y, por otra, unas tarjetas postales de principios del siglo XX. A través de este análisis se muestra el proceso de cancelación y deshumanización que sufrieron las nodrizas, habitualmente afrodescendientes, en las sociedades esclavistas atlánticas como la cubana.
Imperialismo visual estadounidense en las islas intervenidas en las Antillas en 1898
Authors: Puig-Samper Miguel Ángel , López Sánchez José María
Published: January 2024

En el momento del cambio de soberanía en las islas de Cuba y Puerto Rico, como consecuencia de la Guerra, se elaboraron discursos neocoloniales en Estados Unidos a los que acompañaron con frecuencia fotografías que racializaban a la población y mostraban el atraso de las nuevas posesiones. Era una manera de justificar la intervención norteamericana en la gobernabilidad de las islas para procurar su prosperidad y la implementación de medidas de modernización, especialmente en la educación, la sanidad y las obras públicas.
Mensajes desde tierra adentro. Treguas, parlamentos y el rol de cautivos y mensajeros en la frontera de Chile, principios del siglo XVII
Authors: Contreras Cruces Hugo
Published: January 2024

En el contexto de las tratativas de pacificación impulsadas en 1612 por el sacerdote jesuita Luis de Valdivia y por el gobernador de Chile don Alonso de Ribera con las parcialidades mapuches rebeldes de la costa de Arauco y los llanos de Purén y La Imperial, este artículo estudia los procesos de comunicación política que se articularon desde un grupo de sujetos, generalmente eclesiásticos y militares, que, en situación de cautiverio o habiendo pasado por él, permitieron solidificar los contactos y tratos para llegar a efectuar aquellas reuniones de paz conocidas como parlas o parlamentos.
«Bleibe!» o «Verweile!»? Presència de Maragall en la romanística alemanya i les seves traduccions
Authors: Quintana Trias Lluís
Published: January 2024

La romanistique allemande a très tôt entrepris la divulgation et la traduction de la littérature catalane ; E. Vogel fut le premier à traduire un poème de Maragall (1902), et R. Grossmann (1923) le premier à en présenter une étude approfondie. Dans les années 60 la catalanistique reprit son élan autour du professeur Coseriu à l’Université de Tübingen ; et nous trouvons dans les années 70 dans plusieurs universités allemandes des études sur Maragall et son époque (Tur, Hina). Parmi les traductions, nous comptons avec l’anthologie de Hösle-Pous en 1970. Le contraste entre quelques traductions d’un même passage du Cant Espiritual nous donne un aperçu des différentes perspectives de lecture.
The Greek Hospital St Sofronios: Benevolence and Community Building in the Cosmopolitan Milieu of late 19th‑and early 20th‑century Alexandria
Authors: Argiantopoulos Georgios
Published: January 2024

The role of hospitals in promoting charity and philanthropy has not been fully documented in the existing historiography. Following the 1882 crisis in Egypt, Greeks in Alexandria founded a new hospital using British and Egyptian indemnities, loans and donor funds. By examining the operation of St Sofronios Hospital and its staff, this article historicises the development and position of the Greek community in late 19th and early 20th century Alexandria. It argues that the hospital, under the patronage of the Koinotita, consolidated the Greek community in British-controlled Alexandria and, through the institutionalisation of philanthropy, forged intra-communal philanthropic structures, coherence and social hierarchies. At the same time, St Sofronios was responsive to interethnic communication and cooperation.
Solidarités alternatives dans la colonie italienne d’Égypte (1860‑1914)
Authors: Paonessa Costantino
Published: January 2024

Pendant la période comprise entre l’Unification de l’Italie (1861) et les années précédant la Première Guerre mondiale, des individus et des groupes italiens en Égypte, appartenant à différents courants laïques (patriotes du Risorgimento, francs‑maçons, socialistes, anarchistes) s’engagèrent dans des formes et des pratiques du bien alternatives à celles promues par les organismes et institutions de bienfaisance confessionnels. Il s’agit d’une histoire plurielle et hétérogène à laquelle ont participé – souvent de manière concurrente – différentes composantes de la colonie italienne d’Égypte. Dans cet article, l’associationisme laïque représente un point d’observation privilégié pour la reconstruction des articulations sociales et politiques internes à la colonie italienne et également des relations entre celle-ci et la métropole, dans un pays soumis à plusieurs formes de domination coloniale et régi par les Capitulations.
Sephardi Jewish Philanthropy in Cairo during the First Half of the 20th Century
Authors: Tam Alon
Published: January 2024

Focusing on the late 19th and early 20th centuries, as well as on Cairo and its Sephardi Jewish community, this study offers a detailed organizational history of its philanthropic work. I argue that it was shaped by the need of that community to reorganize its communal structures and institutions, as a result of mass migration of Jews into Cairo. This entailed a move by the organized community to take control of philanthropic work, which hitherto was in private hands, with partial, but significant, success. It both mirrored, and responded to, a similar move by the Egyptian state to control social welfare in the country, without replacing non‑governmental, and especially non‑Muslim, communal philanthropic organizations. In this process, the Jewish upper‑ and middle‑classes rechanneled their efforts and funds into communally organized philanthropy, which they used in order to perform their social status, as well as to implement their modernizing agendas. These included a reconceptualization of poverty, from an individual problem solved by direct giving, to a social problem best dealt with by the community, based on the latest scientific knowledge in social work and healthcare. Managing philanthropy in this period also became internationalized, as Cairo’s Jewish community was able to use its international networks for its philanthropic needs and goals. At the same time, philanthropy also highlighted the Jewish community’s cooperation with local, non‑Jewish Egyptian, charities, and emphasized its rootedness in Egypt. In this regard, revamping communal philanthropy and building new communal institutions as late as the second half of the 1940s were not the actions of a community cognizant of its impending demise.
Sectarianism and Charity in Modern Egypt: The Coptic Case
Authors: Fallas Amy
Published: January 2024

Dans cet entretien, les deux chercheures discutent de la manière dont l’étude historique de la charité permet d’apporter un nouvel éclairage sur la question des minorités religieuses, des groupes diasporiques et du confessionalisme dans l’Égypte contemporaine et, plus largement, au Moyen‑Orient. À travers le prisme de la philanthropie copte, A. Fallas examine le renouvellement de l’historiographie sur la charité, les approches récentes et les différentes sources qui ont été utilisées pour écrire l’histoire de la fabrique communautaire et des appartenances. En examinant la circulation des acteurs, des dons et des institutions caritatives à l’échelle trans‑impériale et transnationale, l’entretien aborde enfin la question des territoires de la charité et de la construction de solidarités transfrontalières.
[To] the last [be] human
Authors: Tabas Brad
Published: January 2024

This paper presents a critique of the ethical claims underwriting what it calls the New Futurism. The New Futurists are a group of thinkers who are associated with Silicon Valley Dataism, and who, armed with Bayesian arguments, argue that it is morally imperative for humankind to colonize the solar system. This paper attacks not the general idea of humankind expanding into space, but this specific formulation of the argument for space expansionism, as it is voiced in the work of William MacAskill and a few others. I suggest that the authors of these New Futurist arguments for space embrace as ethical and rational the pursuit of what Derek Parfit called the “Repugnant Conclusion,” and in so doing break with the very economy of moral reasoning: essentially arguing that what we ought to do implies acting in such a way that will, even within their own speculative imaginings of the matter, make every future individual’s life worse. Taking this into account, the paper suggests (without arguing for or denying the possibility of such cases) that any legitimate arguments for expansion of the human habitat beyond the planet would need to remain human – that is to say, they would need to show the ethical value of expanding beyond the Earth in terms of the quality of the life that it might deliver to a finite number of beings who themselves live the sort of finite and ecologically vulnerable lives that we now live on this planet.
Wear of the 3D Printed Polylactic Acid Elements Sliding against the Synthetic Resins at the Higher Speed Friction
Authors: Chang Yuh Ping , Liu Chien Te , Wang Jin Chi , Chen Kao Wei , Suyeh Mei Fen
Published: January 2024

Since the requirement of high dust-free levels, it is necessary to develop the technologies with anti-wear and low dust generation for drive elements that can be quickly printed. Polylactic acid and synthetic resins are often paired with each other for the 3D printed driven elements. To achieve "smooth friction", the adhesion wear under dry friction conditions should be reduced. To achieve a "high dust-free level", the anti-wear of the paired elements under higher speed friction should be improved to reduce the generation of abrasive dust. Therefore, wear of the 3D printed polylactic acid elements sliding against the synthetic resins at the high speed friction are investigated in this paper.
Whole exome sequencing coupled with in silico functional analysis identified NID1 as a novel candidate gene causing neuro-psychiatric disorder in a Pakistani family
Authors: Muzammal M. , Ahmad S. , Ali M.Z. , Fatima S. , Abbas S. , Khan J. , Ullah H. , Shah W. , Duan L. , Khan M.A.
Published: January 2024

Intellectual disability (ID) is a neuro-developmental condition that affects a person’s cognitive ability and results in a learning defect. It affects 1–3% of the general population; however, the ratio may be expected to be more in a consanguineous population. Herein in the present study, we identified a nuclear family from Dera Ismail Khan City in Pakistan. Whole exome sequencing was performed to map the pathogenic variant. Protein structural modeling and interaction studies were carried out to validate the variant with disease association. Molecular modeling of normal and mutated proteins was performed through I-TASSER and Chimera tools, while docking and interaction analysis was carried out using Cluspro. Clinical analysis of the patient determined mild intellectual disability and gait problem. Candidate gene analysis in this family found a homozygous missense mutation NM_002508:c.C2512T (p.Arg838Cys) in the 12th exon of NID1 gene. Molecular modeling of wild-type and mutant NID1 proteins determined a significant effect on the protein’s secondary and tertiary structure. Hence, based on the exome sequence analysis, NID1 is proposed to be a strong novel candidate ID gene in this family. The genetic mapping of the present family led us to determine a novel candidate gene to be associated with intellectual disability. Linkage of additional ID families with genes would confirm its validity and strengthen our notion. Furthermore, expression studies and pathway analysis will help in exploring the biological mechanism of learning and memory.
Screening eighty traditional and improved rice genotypes in Sri Lanka for salinity tolerance at the seedling stage in Yoshida solution 
Authors: Shyamalee H.A.P.A. , Ranawake A.L.
Published: January 2024

A total of eighty different rice genotypes consisting of fifty-three traditional rice accessions and twenty-seven improved rice varieties were evaluated for salinity tolerance. To identify the tolerant genotypes and the relationship between tolerance level with plant height and dry matter accumulation, the seedlings were subjected to electrical conductivity (EC) ~12 dSm-1 for ten and sixteen days separately at the seedling stage. The salinity tolerance of the seedlings was evaluated by standard evaluation scores (SES). Plant height, and total, shoot, and root-dry matter were evaluated in stressed and controlled plants. Rathuheenati4992 was highly tolerant at salinity stresses, and Heenati4618, Kaluwee3728, Mawee (5531, 3618), and Pokkali3573 were highly tolerant at the 10-day and tolerant at the 16-day salinity stress. Pokkali3881 was moderately tolerant at both stress conditions. Improved rice varieties At354 and Bg250 were highly tolerant at 10-day salinity stress and tolerant at 16-day salinity stress. Cultivation of highly susceptible improved rice varieties, Bg360, At306, At362, Ld368 At405, At402, Ld371, Bw272-6b, Ld365, and Bg352 must be avoided in salinized soils. There was no correlation between plant height and salinity tolerance (r = -0.381, α = 0.000), salinity tolerance and total dry matter (r = 0.325 α = 0.002), salinity tolerance and root dry matter (r = 0.294, α = 0.008), or salinity tolerance and shoot dry matter (r = 0.061, α = 0.594). Plant height or dry matter accumulation can be considered unreliable parameters for salinity tolerance screening since they differ with the genotype. The highly tolerant and tolerant genotypes must be further studied at different growth stages.