bluuebunny/crossref_metadata_2025_split huggingface dataset:
Laserstrukturierung von Rührreibschweißwerkzeugen/Laser surface texturing of friction stir welding tools
Authors: Stribick Sascha , Akcara Selim , Dieringer Erik 
Published: February 2023

Das Kunststoff-Rührreibschweißen ist aufgrund von hohen Schweißnahtfaktoren und Oberflächengüten von großem Interesse. Dennoch sind die bisher möglichen Vorschubgeschwindigkeiten begrenzt. Vorangegangene Untersuchungen zeigten ein Verbesserungspotenzial durch eine gezielte Werkzeugoberflächengestaltung. Im Rahmen dieses Beitrages werden systematisch der Einfluss verschiedener Laserstrukturen auf die Verfahrgeschwindigkeit und Festigkeiten der Schweißnähte beim Rührreibschweißen näher untersucht.

Plastic friction stir welding is of great interest due to high welding factors and good surface characteristics. Welding speed, however, is limited. Previous investigations pointed towards potential improvements by a systematically tool surface design. The aim of this paper is to show the influence of laser texturing on the welding speed and welding strength of friction stir welding.
Brucelosis, revisión bibliográfica
Authors: Soria Flores Lisbeth Esthefany , Silva Tirado Monica Paulina 
Published: February 2023

La brucelosis es una infección común entre humanos y animales con una distribución a nivel mundial, adquirida principalmente por contacto directo o con fluidos de animales domésticos y salvajes, dependiendo principalmente del agente causal, se manifiesta de diferentes formas, desde asintomática a cuadros crónicos, provocando manifestaciones focales con complicaciones multisistémicas que pueden ser recurrentes,el diagnóstico se basa en métodos serológicos y cultivo, el antibiotico de elección es la dicloxacilina y en casos más graves estreptomicina. Se realizó una búsqueda sistemática de investigaciones recientes en bases de datos de PubMed, Scielo, Science direct, Medline, Elsevier, New England Journal of Medicine, Google Académico y otros buscadores relevantes de artículos publicados entre el 2017 al 2022, de idioma inglés y español.
ANALISIS KEBUTUHAN BAHAN AJAR UNTUK PEMBELAJARAN BACA TULIS KELAS RENDAH BERBASIS BAHASA IBU DENGAN MUATAN BUDAYA LOKAL NAGEKEO
Authors: Laksana Dek Ngurah Laba , Lawe Yosefina Uge , Ngura Elisabeth  Tantiana , Kata Fransiska , Mugi Ermelinda 
Published: February 2023

Telah teridentifikasi berbagai permasalahan yang dialami oleh mitra, dalam hal ini adalah guru dan siswa sekolah dasar. Permasalahan yang dialami antara lain belum terlatihnya guru guru dalam mengembangkan bahan ajar dan perangkat pembelajaran berbasis bahasa ibu, konten pembelajaran masih kurang muatan budaya lokal, serta hasil belajar siswa SD, khususnya pada aspek membaca dan menulis di kelas rendah masih rendah. Untuk itu perlu dilakukan analisis awal mengenai kebutuhan bahan ajar berbasis bahasa Ibu dengan muatan budaya lokal Nagekeo. Rancangan penelitian yang digunakan dalam penelitian ini menggunakan jenis penelitian kualitatif. Dalam penelitian ini subjek penelitiannya adalah guru SD dan PAUD yang berasal dari Kabupaten Nagekeo. Temuan dari penelitian menunjukkan bahwa guru guru baik dari TK/PAUD, dan guru SD kelas rendah dan SD kelas tinggi membutuhkan bahan ajar berbasis bahasa Ibu dengan muatan budaya daerah Nagekeo. Selain berdasarkan jenjang Pendidikan, guru dari berbagai kategori lama mengajar juga memberikan tanggapan yang sama, semua guru yang mengajar dari 0-5 tahun, 6-10 tahu, dan di atas 10 tahun, menyatakan bahwa bahan ajar berbasis bahasa ibu dengan muatan budaya lokal sangat perlu dikembangkan.
THE IMPACT OF STUDENTS’ INTEREST IN ENGLISH SONGS ON THEIR LISTENING SKILLS
Authors: Ayu Sapitri Farahtu , Suryadi  
Published: February 2023

The influence of interest in English songs on students' listening skills at SMPN 1 Ciomas is the topic of this research. The goal of this study is to examine the impact that students' interest in English music has on their listening abilities in SMPN 1 Ciomas. This study is based on Slameto's (2010) theory that learning is more effective when it relates to students' interests. In order to analyze a specific population or sample for this study, the author employs a quantitative approach. Data are collected using research instruments, and data processing focus on quantitative/statistical analysis to test the hypotheses that have been set. Tests and questionnaires are employed as research tools. The population of this research is the students in SMPN 1 Ciomas, and the sample is the twelve grader students as many as 31 students. The data is analyzed using regression-correlation analysis.
According to the study's findings, listening abilities and interest in English music are significantly positively correlated. Interest in English music has a 71.1% impact on listening abilities. In conclusion, persons who enjoy listening to English music engage in activities related to such songs on a regular basis, enjoying the good feelings that come along with them while also learning new things. This information aids listeners in comprehending what they are hearing. Additionally, since people's attention is enhanced by personal interest, which makes listening more effective, this interest also aids in the listening process.
Revascularization methods in patients with carotid stenosis and concomitant coronary heart disease
Authors: Goranov Georgi , Nikolov Petar , Tokmakova Mariya 
Published: February 2023

A major feature of the atherosclerotic process is its systemic and progressive character. The plaque pathogenetic mechanisms, morphology, evolution, and predilection site (bifurcation zones) determine the frequent coincidence of carotid and coronary atherosclerosis in the same patient.
The present overview chronologically traces the history, effectiveness, and benefit of surgical and continuously improving interventional carotid revascularization. It thereby analyzes the indications, results, and complications based on a number of randomized clinical trials, industry-sponsored registries, and large single-center series in the last 3 decades. Carotid endarterectomy (CEA) and percutaneous carotid angioplasty (CAS) have evolved from &lsquo;dubious&rsquo; procedures to a modern strategy resulting in a significantly lower incidence of stroke and death compared to medical treatment only. Although almost every second patient with carotid stenosis and indications for CAS has coronary atherosclerosis, studies on therapeutic modeling in such a combination are few, showing controversial results. Having both CHD and CS doubles the risk of myocardial infarction, stroke, HF, and death. An isolated revascularization approach compromises the results of therapeutic strategies and worsens patient survival. The high risk associated with coronary heart disease in CAS and CEA is a fact and minimization requires both an individualized and uniform stepwise revascularization strategy.
The effects of thiopental on cold ischemic injury in renal transplantation
Authors: Büyük Başak , Adali Yasemen , Karakoç Ebru , Eroğlu Hüseyin Avni , Aydeğer Cemre 
Published: February 2023

Introduction: One of the most important factors influencing post-transplant success in kidney transplantation is preserving the viability of the organ from removal to transfer into the recipient.
Aim: This study aimed to reduce the energy requirement with thiopental doses administered before organ transplantation, and to increase the organ viability by minimizing the tissue damage during the cold ischemia process.
Materials and methods: Twenty female Wistar albino rats were divided into two groups: control group (group C), and thiopental group (group T). In group C, a midline incision was performed, and the renal artery was isolated under ketamine and xylazine anesthesia. A standard organ storage solution (cooled to +4&deg;C) was used for kidney perfusion. Nephrectomy was applied, and the removed kidneys were placed into +4&deg;C standard organ storage solution and stored at +4&deg;C for 12 hours. Animals in group T were subjected to the procedures explained above under 85&nbsp;mg/kg thiopental sodium anesthesia. After 12-hour storage, samples from the kidney tissues were fixed in 10% neutral buffered formalin. Histopathological evaluation and apoptosis detection via TUNEL method were performed.&nbsp;
Results: Tubular necrosis was more extensive in group C compared with that in group T and this difference was statistically significant. Similarly, vacuolization was widely observed in group C, and this increase was also statistically significant. For the &lsquo;dilatation of Bowman&rsquo;s space&rsquo; parameter, a significant decrease was observed in group T compared with group C. When the apoptotic index values of both groups were examined, it was seen that they were lower in group T than those in group C. This result was statistically significant.
Conclusions: These data suggest that thiopental provides protection to the kidney tissue during the cold storage process. Thiopental has been shown to decrease the number of apoptotic cells in the kidney tissue when administered to the donor before organ transplantation, increasing the organ viability.
Primary immunodeficiency screening in an infant with cytomegalovirus disease reveals HIV infection
Authors: Burnusuzov Hasan , Yankov Ivan , Ketev Kostadin , Murdjeva Mariana 
Published: February 2023

Cytomegalovirus is widely spread worldwide, and it is not uncommon for it to complicate the congenital human immunodeficiency virus (HIV) disease as an acquired or congenital coinfection. However, the association of the two infections is not common amongst infants with primary immune deficiencies.
We describe a case of a 6-month-old infant with acquired cytomegalovirus and HIV infections, diagnosed in the course of the patient&rsquo;s clinical and laboratory workup for a presumed primary immunodeficiency. To date, this is the first reported case of such a combination in a child from Bulgaria.
Custom anterior segment optical coherence tomography indices for detection of corneal ectasia
Authors: Atanassov Angel , Konareva-Kostianeva Marieta , Atanasov Marin 
Published: February 2023

Introduction: Corneal thinning and changes in the corneal thickness profile are major symptoms of corneal ectasia. The anterior seg-ment optical coherence tomography is currently widely used, and the development of additional indices may lead to improvements in the diagnostics of keratoconus.
Aim: To determine the diagnostic value of newly developed custom anterior segment OCT indices in diagnosing corneal ectasia.
Patients and methods: Two sets of patients were included in the current study - healthy controls in the first and patients with corneal ectasia in the second, 80 eyes per group of 43 patients each. The groups were age- and sex-matched. Each patient underwent a standard ophthalmological examination (visual acuity, tonometry, slit lamp examination, fundus biomicroscopy), a corneal topography with OCULUS Keratograph 5M, and an anterior segment optical coherence tomography with RTVue-100. Besides the indices automatically generated by the software of the device, we measured the following custom parameters: partial corneal area (PCA), partial chamber area (PCA), and an index that reflects the relation between the two (CpC). All measurements were performed in two axial pachymetric scans, one vertical and one horizontal using the built-in software.&nbsp;
Results: A statistically significant difference was found between the two groups (p<0.001, confidence Interval 95%) for all the proposed indices in both the vertical and the horizontal scans. The ROC analysis showed promising results for differentiation between the groups with the area under the curve (AUC) in the range from 0.892 for the vertical partial anterior chamber area to 0.984 for the vertical CpC index.
Conclusions: The proposed indices can be used to differentiate between normal and ectatic corneas.
A single-center study of bone mineral density in adult patients with severe hemophilia A in correlation with markers of bone metabolism
Authors: Ivanova Hristina A. , Grudeva-Popova Zhanet , Deneva Tanya , Tsvetkova Silvia , Mateva Nonka 
Published: February 2023

Introduction: Osteopenia and osteoporosis are well-known hemophilia A comorbidities. The pathogenesis of bone turnover alteration resulting in reduced bone mass includes impaired osteoblastic differentiation and disinhibition of RANKL-induced osteoclastogenesis as a result of a low FVIII level.
Aim: To evaluate the bone mineral density (BMD) in adult patients with severe hemophilia A and assess a possible correlation with the bone remodeling biomarkers OPG/RANKL, CTX-1, osteocalcin, and Vit D.
Materials and methods: 28 male subjects with severe hemophilia A and 33 age-matched controls were recruited. The biomarkers were tested with the ELISA assay and BMD with DEXA of the lumbar spine (LS) and total hip (TH).
Results: The patients had lower LS-BMD (&minus;0.955&plusmn;0.145 vs. 1.118&plusmn;0.079, p=0.05) and TH-BMD (&minus;0.840&plusmn;0.147 vs. 0.951&plusmn;0.075, p=0.05) than those of the controls. The TH T-scores were &minus;1.41&plusmn;0.91 vs. 0.4&plusmn;0.49 (p=0.05) and the LS T-scores &minus;1.16&plusmn;1.046 vs. 0.14&plusmn;0.72 (p=0.05). 66.6% of patients under 50 years had osteopenia and 8.3% had osteoporosis. Fifty percent of those over 50 years old had osteopenia and 20% had osteoporosis. We found significantly higher OPG levels (123.69&plusmn;107.05 vs. 41.98&plusmn;18.95, p=0.05) than that in controls and lower sRANKL levels (23.49&plusmn;29.39 vs. 131.32&plusmn;201.27, p=0.05) and sRANKL/OPG ratio (0.27&plusmn;0.35 vs. 5.28&plusmn;10.01, p=0.05) than those in controls. A positive correlation was found between sRANKL and the BMD T-score of lumbar spine (p=0.001) in the patient group.
Conclusions: sRANKL level and ratio can be used as predictors of low BMD.
Compulsory vaccination against COVID-19 in the context of the principles of the convention on human rights and biomedicine
Authors: Hristozova Mariya V. , Semerdjieva Maria A. , Mavrov Momchil S. , Bakova Desislava R. 
Published: February 2023

Introduction: At this stage of the global health crisis caused by the SARS-CoV-2 coronavirus, an increasing number of countries are considering enacting legislation requiring compulsory vaccination or implementing a mechanism to ensure mass vaccination of the population. Such policy decisions raise a number of legal and deontological issues.
Aim: The aim of the study was to analyze the legal and deontological issues related to the introduction of compulsory vaccination against COVID-19 in the context of the principles of the Convention on Human Rights and Biomedicine (Oviedo Convention).
Materials and methods: The analysis looks at the international legal framework that governs the protection of human rights and freedoms, the principles and rules that apply to the achievements of biology and medicine, and, in particular, the Oviedo Convention.
Results: Vaccines against COVID-19 are a modern scientific success in biology and medicine, particularly those of the latest genera-tion of vaccines presented by the scientific community as a consequence of revolutionary mRNA technology. It is for this reason that the provisions of the Oviedo Convention should serve as guidelines for countries to follow in their fight against COVID-19 pandemic.
Conclusions: Achieving mass vaccination of the population in accordance with the provisions of the Oviedo Convention and other rel-evant international standards for the protection of fundamental human rights, in conjunction with a large-scale information campaign, seems a sensible approach that would contribute to the rapid and peaceful resolution of the current global health crisis.
Cartografía de las nuevas formas de desaparición (o de cómo se puede contar el abandono)
Authors: Gatti Gabriel 
Published: February 2023

Este trabajo intenta proponer una cartografía útil de y con las categorías desaparición y desaparecido. Rastrea primero el éxito de ambas en varias áreas, acercándose a las razones de la universalización de una acepción históricamente fundada de las dos, que explica tanto ese éxito como algunos de los condicionantes que este impone para quienes las usan, en sede académica y fuera de ella. En un segundo movimiento constata que la acepción más aceptada y consolidada de una y otra ha sido desbordada, ampliamente, centrándose en tres de sus límites más fuertes: los marcos temporales de referencia de ambas (el pasado y la memoria), las presunciones antropológicas que sostienen a las dos (la mala muerte y la (im)posibilidad de su gestión social convencional), los cuadros sociales normativos que ambas toman como «dados por supuesto» (el Estado, la ciudadanía y las formas de agencia política asociadas a ello). Finalmente, el grueso del texto, a partir de lo que algunas experiencias de investigación de campo, desarrolladas en lugares muy distintos y distantes, dicen sobre los usos de unas categorías ya globales, recoge diferentes esfuerzos de problematización teórica que, actualmente, y en distintos campos de la investigación científico-social, hacen de desaparición y desaparecido herramientas para el análisis de las formas sociales del abandono. En el epígrafe final, el trabajo sugiere que ambas son útiles para poder contar lo que no tiene ni cuento, ni registro, ni es cuidado.
Filosofía zapoteca, ciencias sociales y diálogo mundial de saberes
Authors: Sánchez-Antonio Juan Carlos 
Published: February 2023

En este artículo intentamos reconstruir algunos de los conceptos fundamentales del pensamiento de los zapotecos (o binnigula´sa´) ubicados en el Istmo de Tehuantepec, Oaxaca, México, desde una arqueología-filosófica a partir de tres momentos. 1) En la primera parte cuestionamos la definición hegemónica de filosofía occidental para dar lugar a otras definiciones de filosofías no heleno-eurocéntricas que nos permitan hablar de una filosofía zapoteca. 2). Reconstruimos lingüísticamente algunos conceptos fundamentales de la cultura zapoteca y analizaremos un poco la relación interdependiente y de respeto que tiene con los fenómenos naturales de la madre naturaleza. 3) Al final abogamos por la descolonización de las ciencias sociales desde el diálogo mundial de saberes con los aportes de las amplias culturas del sur global que fueron negadas por la razón occidental.
Miccailhuitl ~ Xantolo: Día de Muertos y Todos Santos en Octavio Paz y el padre José Barón
Authors: Alonso Meneses Guillermo 
Published: February 2023

Este artículo confronta dos evocaciones y representaciones que de la muerte y del Día de Muertos, Todos Santos o Xantolo hicieron Octavio Paz y el sacerdote José Barón Larios. En concreto, el capítulo 3 de El laberinto de la soledad, titulado «Todos Santos, Día de Muertos» [1950] y los testimonios recogidos por el padre Barón [entre 1971 y 1990] en varias comunidades de la Huasteca hidalguense. El objetivo final es contrastar las cosmovisiones implícitas que proyectaron dos mundos e imaginarios, en torno a la muerte y sus festividades de otoño, el mestizo urbano de Ciudad de México y el indígena rural de la Huasteca nahua.
Lo que decimos que hacemos según quien nos escuche. Un análisis de las variaciones de los discursos de los informantes y su uso en nuestra labor etnográfica
Authors: Alcalde Sánchez Ignacio 
Published: February 2023

En este artículo reflexionamos sobre la inclusión en nuestro trabajo etnográfico de datos provenientes de otras fuentes y la postura que debemos tomar ante la variación del discurso de esas muestras respecto a nuestras observaciones. Un fenómeno recurrente en la etnografía que suele dejarse de lado y que conviene tener presente en nuestra labor como antropólogos. Para ello, usaremos nuestro propio trabajo de campo y las anotaciones que obtuvimos comparándolos con las grabaciones de diferentes programas de televisión y otras entrevistas realizadas a nuestros informantes por otros agentes, con lo que analizaremos sus variaciones desde el análisis del discurso basados en los postulados de Wetherell y Potter, la importancia de la contextualización, la interacción social de Goffman o el concepto de habitus de Bourdieu. Una reflexión sobre la importancia del análisis del discurso en la etnografía y cómo tenerlo en cuenta en nuestro estudio.
La déforestation au prisme des terroirs villageois en situation de mosaïque forêt-savane, République Démocratique du Congo
Authors: Demichelis Christophe , Oszwald Johan , Gasquet-Blanchard Clélia , Narat Victor , Bokika Jean-Christophe , Giles-Vernick Tamara 
Published: February 2023

Les mosaïques forêt-savane constituent une formation écologique hétérogène où la structure et la composition paysagère sont très variables. Cette étude s’intéresse à l'organisation spatiale des activités humaines à l'échelle des terroirs villageois de la Chefferie des Batéké Nord, en République Démocratique du Congo. De quelle manière les activités humaines sont-elles organisées en périphérie des villages ? Existe-t-il une variabilité locale de spatialité de ces activités et quels en sont les facteurs ? Enfin, quels sont les conséquences sur le paysage, notamment en termes de déforestation ? Ces questions sont abordées en croisant des données issues de relevés de terrains géoréférencés et d’enquêtes socio-économiques, le tout confronté à des analyses en géomatique (SIG et télédétection). Un modèle théorique du terroir villageois a été produit pour l’ensemble des villages, présentant une organisation concentrique des activités basée sur les distances maximales parcourues pour chacune d'entre elles. Une variation de ces distances a pu être observée, notamment concernant l’agriculture, en raison de la démographie, de la disponibilité en forêts, de la présence de forêts communautaires et de l'intensité de l'agriculture de rente. Cette variabilité inter-villages met en évidence une typologie villageoise directement liée à la composition paysagère des terroirs, et met en avant différentes situations socio-écosystémiques au sein d'une zone pourtant restreinte. Cela a permis d’identifier des fronts de déforestation, et à l'inverse des zones où le couvert forestier est très peu dégradé. Cette étude entend participer à éclairer les politiques locales en termes de développement et de conservation, en leur permettant d'agir de manière intégrée à l'échelle des villages. En s'appuyant sur le concept de terroir villageois, cette étude met en avant la pertinence de réaliser des études locales, voire micro-locales, afin de mieux appréhender toute la complexité des relations entre les êtres humains et leur environnement, dont l'empreinte est directement visible sur le paysage.