bluuebunny/crossref_metadata_2025 huggingface dataset:
Study the properties of Cu2Se thin films for optoelectronic applications
Authors:   Department of Physics, College of Education for Pure Science / Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq, Ali Sa. M. , Hassun H. K. ,   Department of Physics, College of Education for Pure Science / Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq, Salih A. A. ,   Department of Physics, College of Education for Pure Science / Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq, Athab R. H. ,   AI-Esraa University College, Baghdad, Iraq, Al-Maiyaly B. K. H. ,   Department of Physics, College of Education for Pure Science / Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq, Hussein B. H. ,   Department of Physics, College of Education for Pure Science / Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq
Published: October 2022

Copper selenide (Cu2Se) thin films were prepared by thermal evaporation at RT with thickness 500 nm. The heat-treating for (400 &500) K for the absorber layer has been investigated. This research includes, studying the structural properties of X-ray diffraction (XRD) that show the Cu2Se thin film (Cubic) and has a polycrystalline orientation prevalent (220). Moreover, studying the effect of annealing on their surface morphology properties by using Atomic Force Microscopy AFM. Optical properties were considered using the transmittance and absorbance spectra had been recorded when wavelength range (400 - 1000) nm in order to study the absorption coefficient and energy gap. It was found that these films had allowed direct transition optical band gap which decreases with the increasing effect of annealing, while it increasing with the increase in the annealing temperature at all ratio UV-Visible transmission spectrum. Hall Effect results presented that all thin films have P-type. It is quite possible that the heterojunction (p-Cu2Se/n-Si) solar cell device is a buried. The illumination current- voltage (I-V) characteristics showed that the solar cell, with (t=500 nm and T=500 K ) has highest efficiency (η =1.4 %).
Effect of CdSe loading on bulk heterojunction solar cell parameters
Authors:   Department of medical Physics, Hilla University College, 51001, Babylon, Iraq, Mohammed K. A. , Alrubaie A. J. ,   Department of Medical Instrumentation Techniques Engineering, Al-Mustaqbal University College, 51001, Hillah, Babil, Iraq, Ziadan K. M. ,   Department of Physics, College of Science, Basrah University, 61007, Basrah, Iraq, Al-Kabbi A. S. ,   Department of Physics, College of Science, Basrah University, 61007, Basrah, Iraq, Zabibah R. S. ,   Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
Published: October 2022

Hybrid solar cells based on conductive polymer poly(o-toludine) (POT) with Cadmium Selenide nanoparticles (CdSe NPs) bulk heterojunctions (BHJ) were prepared by the direct mixing method and then the optical properties of the prepared materials were analyzed. The photovoltaic response of a hybrid film is studied by I –V measurements under simulated one-sun AM 1.5 illumination (100 mW cm-2). Three different CdSe load was tested to study the effect of CdSe loading on optical properties and efficiency of solar cell. Best ratio was 1:1 were gave 0.28 % efficiency. Also no photovoltaic effect for device with 75% CdSe load.
Effect of Macro, Micro and Nano Loads on The Indentation Behavior of Ti-6Al-4V and Haynes 242 Alloys
Authors: B. Sridhar Babu , A. Kumaraswamy , Kumar Kaushik
Published: October 2022

Indentation tests were conducted on Ti-6Al-4V and Haynes 242 alloys at macro, micro and nano load range using conventional and depth-sensing indentation instruments to study the load effects on the mechanical behaviour of the alloys. With the increase of indentation loads from macro to nano, a decrease in Young’s modulus and indentation hardness values was observed as a result of the indentation size effect in the alloys. During the loading procedure in macro, micro and nano indentations, the loading curves progressively moved upwards, showing the increase in resistance of the alloys with the increase in indentation load. Compared the depth-sensing instrumented indentation hardness of alloys with the conventional indentation hardness at micro loads, the magnitude of the depth-sensing instrumented indentation hardness is 10-25% greater than the conventional indentation hardness. The reason for this variation is explained as the depth-sensing instrumented indentation hardness is calculated at maximum load with the projected contact residual impression area, Ac, instead of the residual indenter impression projected area, Ar. So the indent pileup and sink-in play a major difference between the depth-sensing instrumented hardness and conventional indentation hardness. The outcome of the experimental work clearly indicates that for evaluation of the hardness usage of projected contact residual impression area provides more accurate results than when residual indenter impression projected area is used. The concept is synonmous to evaluation of engineering stress / strain and true stress / strain using original and actual cross sectional area respectively.
Drag Reduction on a Three Dimensional Teardrop-Shaped Body Car with Different Stagnation Points
Authors: Lee M. W. , Tiew Hedy Soon Keey , Chang Wei Shyang , Ishak Mohammad Hafifi Hafiz , Ismail Assoc. Professor Dr Farzad
Published: October 2022

The long-term goal in the automotive industry is to reduce fuel consumption and environmental pollution without compromising the aerodynamic performance of the car. Herein, the aerodynamic performance of an in-house designed Shell Eco-Marathon prototype car is analyzed using Computational Fluid Dynamics simulations. Shape optimization of the Shell car is executed to reduce drag by modifying the rear underbody profile and stagnation point position. The effect of one modification to another is studied to determine the changes to overall flow around the car and, more importantly, the lift and drag coefficients. It has been found that the stagnation point height has a higher influence on the aerodynamic performance of the car compared to variations of the rear underbody, with optimum drag reductions of 17% and 10%, respectively. Moreover, combining the two best configurations to the car reduces CD by 25%, and this marks the highest drag reduction achieved in this study.
Supply Chain Management of Outsourcing Module Components Decision-Making using Analytical Hierarchy Process and Visual Basic Application in Automotive Body-in-White Welding Assembly Line
Authors: Fudzin Ahmad Fauzi , Mokhtar Ainul akmar , M. Muhammad
Published: October 2022

Supply Chain Management (SCM) has gained the attention of business organizations as it affects corporate efficiency and competitive advantage. Component outsourcing is an important element of SCM practices and is considered to be a multi-criteria decision-making problem (MCDM) in vendor selection processes. However, decision-making on the selection of vendors is crucial, as the outsourcing program is influenced by multiple technical and commercial criteria of vendors. Developing an Excel-based Analytic Hierarchy Process (AHP) model for vendor selection therefore helps to simplify selection processes. In this paper, a Visual Basic Application (VBA) Excel-based AHP model was developed, which multiple criteria, sub-criteria and vendors and simultaneously compared with multiple main criteria, sub-criteria and alternatives for vendor selection. The model was validated with a case study of selecting a vendor for module components of body-in-white (BIW) in automotive industry as industrial application. As a result, vendor A is the best vendor since it has the highest overall score of 0.35206. Whereas vendor B is 0.239, vendor C is 0.126, vendor D is 0.146 and vendor E 0.135. In addition, the model is capable of resolving other MCDM problems. This paper provides resources such as AHP methodology, validating method and VBA code programming to readers in developing their own VBA Excel-based model.
Maintaining bone health by estrogen therapy in patients with advanced prostate cancer: a narrative review
Authors: Coelingh Bennink Herjan J T , Krijgh Jan , Egberts Jan F M , Slootweg Maria , van Melick Harm H E , Roos Erik P M , Somford Diederik M , Zimmerman Yvette , Schultz Iman J , Clarke Noel W , van Moorselaar R Jeroen A , Debruyne Frans M J
Published: October 2022

The purpose of androgen deprivation therapy (ADT) in prostate cancer (PCa), using luteinizing hormone-releasing hormone agonists (LHRHa) or gonadotrophin-releasing hormone antagonists, is to suppress the levels of testosterone. Since testosterone is the precursor of estradiol (E2), one of the major undesired effects of ADT is the concomitant loss of E2, causing among others an increased bone turnover and bone loss and an increased risk of osteoporosis and fractures. Therefore, the guidelines for ADT indicate to combine ADT routinely with bone-sparing agents such as bisphosphonates, denosumab or selective estrogen receptor modulators. However, these compounds may have side effects and some require inconvenient parenteral administration. Co-treatment with estrogens is an alternative approach to prevent bone loss and at the same time, to avoid other side effects caused by the loss of estrogens, which is the topic explored in the present narrative review. Estrogens investigated in PCa patients include parenteral or transdermal E2, diethylstilbestrol (DES), and ethinylestradiol (EE) as monotherapy, or high-dose estetrol (HDE4) combined with ADT. Cardiovascular adverse events have been reported with parenteral E2, DES and EE. Encouraging effects on bone parameters have been obtained with transdermal E2 (tE2) and HDE4, in the tE2 development program (PATCH study), and in the LHRHa/HDE4 co-treatment study (PCombi), respectively. Confirmation of the beneficial effects of estrogen therapy with tE2 or HDE4 on bone health in patients with advanced PCa is needed, with special emphasis on bone mass and fracture rate.
La importancia de las relaciones interpersonales en la investigación inclusiva
Authors: Betoret Güiza Sara , Escobedo-Peiro Paula
Published: October 2022

El siguiente trabajo pretende analizar las percepciones que tienen los integrantes de un grupo de investigación sobre la relación que existe entre los tres ejes centrales que se plantean desde el estudio: la responsabilidad social universitaria, la movilización del conocimiento y las relaciones interpersonales. Todo ello dentro del marco de la investigación inclusiva. Como objetivo general se persigue conocer cómo son las relaciones interpersonales en un grupo de investigación inclusiva y cómo influyen estas en la movilización del conocimiento y en el camino hacia la responsabilidad social universitaria. Metodológicamente se trata de un estudio de caso a partir del método cualitativo contemplado dentro del paradigma interpretativo. El estudio se llevó a cabo mediante la realización de un grupo focal en el cual participaron los 6 integrantes de un grupo de investigación inclusiva. Se obtienen en los resultados los aspectos que caracterizan sus relaciones interpersonales tanto a nivel interno del grupo como en relación con los agentes externos. Asimismo, se analiza la convergencia que existe entre las categorías principales y cómo estas se ven condicionadas en función de la calidad de sus relaciones en cuanto a: cómo afectan la resolución de conflictos, la empatía, aprender del error y del proceso, entre otras. Finalmente, en las discusiones y conclusiones se destaca la importancia de humanizar las acciones y generar la confianza para empoderar al agente y todo ello con dos factores indispensables como son la humildad y la necesidad del encuentro entre personas.
A formação de professores na Pedagogia de Rui Barbosa: análise das questões educacionais na transição entre o Império e a República Brasileira
Authors: Shigunov Neto Alexandre , Carvalho Maria Cristina Monteiro Pereira de , Yaegashi Solange Franci Raimundo
Published: October 2022

A presente pesquisa, de cunho bibliográfico e documental, teve como objetivo compreender como a formação de professores é discutida por Rui Barbosa, em seus pareceres e projetos. Para tanto, buscou-se contextualizar o momento histórico vivenciado por Rui Barbosa (1849-1923), o qual foi marcado por transformações ocorridas no período final da monarquia (1822-1889) e início do regime republicano no Brasil. Discutiu-se, em especial, a Reforma Carlos Leôncio de Carvalho implementada por meio do Decreto nº 7.247, de 19 de abril de 1879, que propôs reformas para o ensino primário e secundário no município da Corte e ensino superior no Império. Verificou-se que o Decreto nº 7.247 trata-se de documento relevante que expressa aspirações de modificar a estrutura do ensino num contexto de efervescência social, no qual estavam acontecendo intensas mudanças nos âmbitos político, econômico e cultural. Pode-se afirmar que nos pareceres de Rui Barbosa fica explícita a ideia de que o Estado deve ser o responsável pela oferta da educação, desde os anos iniciais até o ensino superior. Como forma de garantir o acesso universal à educação, o jurista postulou a obrigatoriedade, a gratuidade e a laicidade do ensino. Ademais, Rui Barbosa defendeu, de modo enfático, que, concomitante à reforma dos métodos de ensino, era necessário empreender uma reforma na formação de professores. Para este grupo profissional, propôs cursos com duração de quatro anos e frequência obrigatória, além do conhecimento de língua estrangeira.
La educación multicultural desde la hermenéutica analógica de Mauricio Beuchot
Authors: Cruz Picón Pablo Emilio , Hernández Correa Lady Jazmmin
Published: October 2022

La educación multicultural es una reflexión subjetiva y objetiva de la realidad social. Por tal razón, el presente ensayo tiene como objetivo reflexionar desde el paradigma hermenéutico analógico del filósofo mexicano Mauricio Beuchot las implicaciones teóricas y conceptuales de la educación multicultural. Para tal fin, se muestra que la educación multicultural no solo reside en el reconocimiento de las diferencias sociales, sino que está integrada en condiciones culturales. En suma, la hermenéutica analógica es un paradigma teórico-práctico vinculado con la interpretación del acto pedagógico (prácticas simbólicas) como un hecho cultural, la cual percibe la educación como un proceso transformador encaminado a la reflexión del campo sociocultural que permite suscitar una relación análoga. Así, la cultura adquiere un valor positivo en cuanto ejercicio de libertad, equidad, otredad, alteridad, autonomía y libre determinación de los pueblos. Con la hermenéutica analógica, la educación desempeña un papel fundamental para construir identidad cultural, por cuanto viabiliza desarrollar un horizonte sociocultural, lingüístico, político y ético. Esto favorece el aprendizaje situado, activo, multicultural y centrado (aprendizaje significativo). Con este enfoque pragmático e interpretativo, los procesos de enseñanza y aprendizaje se pueden convertir en un proceso analógico de constructivismo social orientado a la participación ciudadana, la identidad cultural y los procesos de socialización.
Posibilidades pedagógicas del relato digital para el aprendizaje en ciencias
Authors: Croda Borges Gabriela , Rodríguez Guardado María del Socorro
Published: October 2022

La innovación en ámbitos educativos ha cobrado un papel relevante en los últimos años. Incorporar estrategias de aprendizaje que incentiven a los estudiantes de los diferentes niveles educativos al acercamiento de las ciencias es un imperativo en estos tiempos. Este trabajo tiene como propósito reconocer y analizar las posibilidades pedagógicas del relato digital (digital storytelling) como innovación educativa en el contexto del aprendizaje en ciencias. La expresión narrativa es un fuerte potencial para fortalecer y desarrollar la cognición, metacognición y juicio crítico, por lo que la incorporación de relatos digitales en el proceso de enseñanza y aprendizaje constituye un aporte en la innovación educativa desde el contexto mediado por las tecnologías y es válido en cualquier tema de estudio porque se perfila como un dispositivo efectivo para el desarrollo de las competencias del siglo XXI. Los entornos digitales proveen al estudiantado de autonomía y control en sus progresos académicos. Si bien los relatos digitales han sido usados en distintos contextos en el ámbito educativo, falta mucho por explorar y, aún más, su aplicación en el área de las ciencias. Desde la perspectiva pedagógica, constituye un camino para dar paso a una educación interactiva y dialógica, la cual implica involucrar a los estudiantes en su proceso de aprendizaje además de la posibilidad de formar conexiones emocionales con los contenidos de los temas de las distintas asignaturas aplicadas a su entorno.
Osteosíntesis en fracturas femorales periprotésicas de cadera Vancouver tipos B1 y C. Análisis multicéntrico
Authors: Aguirre Gerardo Luis , Allende Bartolomé Luis , Pioli Ignacio , Iglesias Santiago , Pereira Sebastián , Vindver Gabriel , Bidolegui Fernando
Published: October 2022

Introducción: Nuestro objetivo fue analizar los resultados del tratamiento con osteosíntesis en pacientes con fracturas Vancouver tipos B1 y C, evaluar las complicaciones, las reintervenciones y la tasa de mortalidad en este grupo. Materiales y Métodos: Estudio multicéntrico, retrospectivo. Se estableció una base de datos que incluía a 53 pacientes con fracturas periprotésicas de fémur Vancouver tipos B1 y C tratadas con osteosíntesis, desde 2008 hasta 2021, en dos centros hospitalarios de alta complejidad. Resultados: La fijación proximal más utilizada fue con tornillos bicorticales más lazadas de alambre. El tipo de fractura según la clasificación de Vancouver se correlacionó con un valor significativo en el uso de tornillos de compresión interfragmentaria (p 0,001), con un total de 13 pacientes (24,52%), 9 en fracturas Vancouver tipo C. El tiempo de consolidación promedio fue de 4 meses, con un puntaje promedio del Harris Hip Score de 68. Doce pacientes (22,64%) tuvieron complicaciones: retraso de la consolidación (7 casos; 13,2%), falla de la osteosíntesis con trazo de fractura a nivel distal del tallo (un caso; 1,88%), una nueva osteosíntesis por falla a nivel del material de osteosíntesis (un caso; 1,88%) y tres fallecieron (5,66%). Conclusiones: El manejo de las fracturas femorales periprotésicas es un tema complejo y desafiante. El tratamiento con osteosíntesis constituye un método exitoso que requiere de la aplicación de principios actuales de técnicas mínimamente invasivas que, junto con una fijación proximal estable, mejoran las posibilidades de éxito.
Prevalencia y resultados de cultivos positivos inesperados en revisiones de reemplazo total de cadera presumiblemente asépticas
Authors: Paz María Luz , Iglesias Santiago Luis , López Pablo Daniel , Almada Adrián Gabriel , Romero Federico , Mangupli Martín Marcelo , Pioli Ignacio José , Gómez José Miguel , Allende Bartolomé Luis
Published: October 2022

Introducción: Las tasas de infección periprotésica, a veces, son subestimadas, ya que muchos casos de presunta falla aséptica pueden deberse a una infección no reconocida. Los objetivos de este estudio fueron: 1) estimar la prevalencia de cultivos positivos intraoperatorios inesperados, 2) determinar si las comorbilidades o los factores de riesgo de los pacientes tuvieron relación con la presencia de cultivos positivos inesperados, 3) determinar la supervivencia del implante en un seguimiento mínimo de12 meses.

Materiales y Métodos: Se realizó un estudio retrospectivo y observacional. En las historias clínicas electrónicas, se identificaron todas las revisiones de artroplastia total de cadera de una única institución entre 2014 y 2021. Resultados: De las 49 revisiones de artroplastia total de cadera en un tiempo, 9 pacientes (18,4%) tuvieron un resultado positivo inesperado. Los microorganismos aislados fueron: Staphylococcus aureus (3), Pseudomonas aeruginosa (1), Staphylococcus lugdunensis (1), Staphylococcus epidermidis (2), Staphylococcus haemolyticus (1), Streptococcus epidermidis (1). Ninguna comorbilidad tuvo significancia estadística para favorecer cultivos positivos inesperados en las revisiones asépticas. El 2% de la muestra, con un período de seguimiento de 49 meses, se reinfectó.

Conclusiones: Nuestro estudio arrojó una prevalencia de cultivos positivos inesperados del 18,4%. Ninguno de los factores de riesgo reportados en la bibliografía se asoció con un mayor riesgo de cultivos positivos inesperados, excepto los niveles altos de velocidad de sedimentación glomerular. Nuestros hallazgos son compatibles con los publicados y sugieren que los cultivos positivos inesperados en revisiones presumiblemente asépticas no tienen consecuencias significativas en la supervivencia del implante.
Factores de riesgo de inestabilidad en el reemplazo total de cadera por fractura medial de cadera
Authors: López Pablo Daniel , Almada Adrián Gabriel , Iglesias Santiago Luis , Mangupli Martín Marcelo , Pioli Ignacio José , Gómez José Miguel , Allende Bartolomé Luis
Published: October 2022

Introducción: Una de las complicaciones más importantes de la artroplastia total de cadera en el tratamiento de las fracturas es la luxación, con una tasa del 10%, cinco veces mayor que la de la artroplastia total de cadera por osteoartrosis. El objetivo de este estudio fue conocer nuestra incidencia de luxación en pacientes sometidos a artroplastia total de cadera por fractura del cuello femoral y evaluar la causa de la luxación.

Materiales y Métodos: Estudio retrospectivo en 110 pacientes sometidos a artroplastia total de cadera por fractura medial de cadera (edad promedio 69 años; 71% mujeres). Se evaluaron el tipo de fijación de la prótesis, el tamaño de la cabeza, el offset y el abordaje quirúrgico. Se midieron los ángulos de inclinación y de anteversión acetabulares y se registraron las comorbilidades.

Resultados: El 72% de las cirugías fueron por vía posterolateral. La vía anterolateral se asoció con una copa 7° más vertical (p = 0,001). El 65,4% de las cabezas eran de 32 mm. El 15% (3/20) de las cabezas chicas (22 y 28 mm) y el 1% (1/90) de las grandes se luxaron (p = 0,0027). No se luxó ninguna cabeza de 36 mm. Las comorbilidades neurológicas más frecuentes fueron depresión, Parkinson y Alzheimer.

Conclusiones: Las cabezas de pequeño diámetro junto con el mal posicionamiento de la prótesis y las enfermedades neurocognitivas se asocian a una inestabilidad mayor. El uso de cabezas de 36 mm y la correcta orientación de los componentes son suficientes para asegurar la estabilidad.
Resolución del caso
Authors: Lencina Omar
Published: October 2022

Se discute estudios de la patologia de un deportista que presenta agenesia del vasto medial oblicuo (V.M.O.) del cuádriceps
Views from Tibet
Authors: Tillemans Tom J.F.
Published: October 2022

“Views from Tibet” is a collection of T. Tillemans’s articles in three main subject areas: Tibetan Buddhist logic, the philosophy of the middle, and indigenous Tibetan writing analyzing the structure of the Tibetan language. The previously published articles have been updated and revised. The last chapter is new. Understanding Tibetan views presupposes a relatively sophisticated Indological understanding, and these papers therefore make frequent zigzags to Indian canonical texts, where possible in Sanskrit. Implications for comparative philosophy, logic, and linguistics are also explored. The book should thus be of interest to specialists in Buddhist studies, Tibetologists, and philosophers and linguists with an interest in East-West comparative studies. Some chapters provide translations of important Tibetan texts.
High strength self-compacting corbels retrofitted by near surface mounted steel bars
Authors: Shakir Qasim M. , Alsaheb Sarah D. Abd
Published: October 2022

In the present study, a comparison has been conducted to investigate the efficiency of using the near-surface mounted steel bars technique for strengthening and repairing the damaged reinforced concrete corbels. Three configurations for installing the steel bars have been considered; horizontal, diagonal, and combined. Results revealed that is better to use this technique within the early stages of loading. Moreover, results proved that the strengthening by the diagonal scheme yielded a better response in terms of cracking and failure loads with values of 166 and 95% relative to the control specimen. Also, it is found that for damage of 45%, the horizontal arrangement yielded the highest failure load of 99% whereas for damage of 65%, the diagonal system yielded the optimum value of 50% relative to the control specimen.
UPAYA KONSERVASI PENYU LEKANG (Lepidochelys olivacea) DI WILAYAH KONSERVASI EDUKASI MANGROVE DAN PENYU PANTAI CEMARA, BANYUWANGI, JAWA TIMUR
Authors: Rosalina Dwi , Prihajatno Muji
Published: October 2022

Penyu lekang (Lepidochelys olivacea) yang sejenis dengan penyu hijau adalah termasuk ke dalam kategori terancam punah oleh IUCN. Penyu lekang termasuk jenis karnivora yang memakan kepiting, udang dan kerang remis. Tujuan penelitian ini adalah untuk engelolaan konservasi penyu lekang. Makalah ini membahas tentang identifikasi penyu, data pendaratan dan penetasan telur penyu lekang, deskripsi penyu dan proses kegiatan konservasi penyu lekang. Kegiatan ini berlokasi di Pantai Cemara, Banyuwangi, Jawa Timur. Metode yang digunakan yaitu pengamatan secara langsung dengan pengambilan data primer berupa dokumentasi, observasi, wawancara, kegiatan penangkaran, identifikasi jenis penyu dan data sekunder. Hasil kajian menunjukkan bahwa upaya konservasi pada penyu lekang yang dilakukan yaitu Teknis Peneluran Penyu Lekang (Lepidochelys olivacea), Kegiatan Monitoring, Proses Penetasan, Penyelamatan dan Relokasi Telur Penyu, Masa Inkubasi, Pemeliharaan Tukik Penyu, Pelepasan Tukik Penyu, dan Edukasi Pengunjung. Koordinasi antara instansi terkait dan masyarakat dalam menangani dan menyelamatkan kepunahan dari penyu lekang saat ini sudah berjalan dengan baik. Diharapkan dengan adanya upaya konservasi penyu tersebut, penyu lekang tetap dapat dilestarikan.The sea turtle (Lepidochelys olivacea), which is similar to the green turtle, is included in the IUCN endangered category. The sea turtle is a carnivorous species that eat crabs, shrimp and mussels. The purpose of this study is to manage the conservation of the turtledove. This paper discusses the discovery of turtles, data, hatching of the turtle eggs, and description and process of the olive ridley turtle. This activity is located at Cemara Beach, Banyuwangi, East Java. The method used is the direct observation by collecting primary data, documentation, observation, interviews, captive activities, turtle species and secondary data. The results showed that the olive ridley turtle (Lepidochelys olivacea) conservation efforts were carried out, monitoring activities, hatching processes, saving and relocating turtle rearing eggs, incubation period, turtle hatchlings, releasing turtle hatchlings, and educating visitors. Coordination between relevant agencies and the community in handling and saving the extinction of the turtledove is currently going well. It is hoped that with these turtle conservation efforts, the turtle can still be preserved.
Was Max Steiner a Jew?
Authors: Friedmann Jonathan L.
Published: October 2022

Max Steiner is regularly identified as a “Jewish composer” despite his protests to the contrary. Others claim he had a crisis of Jewish identity: although he did not explicitly embrace his Jewish lineage, his allegiance was expressed through charitable giving and his score for A Symphony of Six Million (1932). Both assumptions deny Steiner the agency of self-definition. This paper seeks to differentiate between the passive category “Jew” and the active adjective “Jewish,” and between the social climates of Vienna and Hollywood, which informed Steiner’s self-understanding.
Aproximación al urbanismo de una ciudad de los «Vascones»: prospecciones geofísicas en Santa Criz de Eslava (Eslava, Navarra)
Authors: Hermann Forian , Andreu-Pintado Javier , Teichner Félix
Published: October 2022

En abril de 2022, en virtud de una colaboración entre la Universität de Marburg, el Ayuntamiento de Eslava y la Universidad de Navarra, se desarrollaron trabajos de prospección geofísica en parte del área urbana de la ciudad romana de Santa Criz de Eslava, una de las más notables y monumentales ciudades romanas de Navarra, en el área central del territorio de los antiguos Vascones. La campaña, breve en el tiempo, ha permitido constatar algunos detalles del urbanismo cívico que se ofrecen y comentan en el presente trabajo en que se da a conocer también la metodología empleada en la misma.
Сучасні методи моделювання багатофазних течій у трубопроводах нафтогазової галузі
Authors: Альтман Е.І. , Волгушева Н.В. , Бошкова І.Л. , Кологривов М.М. , Арику А.В.
Published: October 2022

Розглядаються питання надійного опису транспортування багатофазних вуглеводневих систем. Встановлено, що основними причинами, що ускладнюють експлуатацію трубопроводів і знижують їх продуктивність та ефективність, є висока відносна швидкість газової фази, утворення гідрофобних водонафтових емульсій, формування відкладень на стінках трубопроводів. Вивчаються методи аналітичних уявлень багатофазних течій у трубах при видобутку та транспортуванні вуглеводнів. Встановлено, що в нафтогазовій промисловості при вивченні багатофазних течій у трубі найбільшого поширення набули два підходи: багаторідинна модель і модель дрейфу. З точки зору фундаментальних досліджень, цікавить питання про зв'язок між багаторідинною моделлю і спрощеною моделлю дрейфу, і про межі застосування останньої. Вивчено модель дрейфу для нестаціонарних газорідинних течій у довгих трубопроводах, наведено результати розв'язання задач про гідравлічний транспорт твердої фази в трубах, а також представлений висновок асимптотичних рівнянь моделі дрейфу для течії розрідженої газорідинної дисперсної суміші в круглій трубі. Представлені припущення, прийняті при виведенні асимптотичних рівнянь багатофазної течії в трубі та обґрунтування застосування моделі дрейфу. Наведено рішення для профілю та швидкості дрейфу та проведено їх аналіз. На основі представлених у фахових виданнях даних вказується, що найбільш сильний вплив на результати вносить зміна амплітуди швидкості дрейфу у висхідних ділянках течії. Вивчення методів аналітичних досліджень має практичну значущість, зумовлену широким спектром додатків одновимірних моделей багатофазних течій у свердловинах та довгих трубопроводах. Визначено, що в даний час перевагу в дослідженнях має модель дрейфу, яка широко впроваджена в комерційні симулятори багатофазних течій для нафтогазових додатків та в узагальненому вигляді може бути використана для розвитку та покращення цих програмних продуктів
Утилізаційна комбінована енергохолодильна установка з повним регенеративним теплообміном
Authors: Лавренченко Г.К. , Слинько О.Г. , Галкін В.М. , Козловський С.В. , Бойчук А.С.
Published: October 2022

Розглядається утилізаційна комбінована енергохолодильна установка, що включає енергетичний та холодильний цикли та має загальний конденсатор. Застосовуючи у якості гарячого джерела теплоти воду (tводи = 126 ºС), що охолоджує двигун SDR-8 фірми «Зульцер», потужністю Ne =1250 кВт, досліджено залежність ефективності теплоти гарячого джерела від процесу розширення пари в турбіні та її використання після розширення в ній. Особливість запропонованої установки полягає у гідродинамічному способі отримання пари та ізохорному процесі її перегріву. В енергетичному і холодильному циклах використовується одна й та сама робоча речовина – R134a. При розширенні пари до стану насичення, установка здатна виробляти 1136 кВт холоду, температура якого -26,4 ºС. При цьому холодильний коефіцієнт установки дорівнює 5,1, що перевищує коефіцієнт звичайної холодильної установки, яка працює в тому ж інтервалі температур (температура конденсації +40 ºС) на 94%. При розширенні пари в турбіні до гранично допустимої вологості (14 %) та використанні охолоджуючої здатності відпрацьованої пари турбіни установка виробляє 1582 кВт холоду. Підвищення холодопродуктивності при цьому варіанті побудови установки у порівнянні з першим варіантом становить 39 %, а збільшення зовні підведеної потужності – 54%. Холодильний коефіцієнт при другому варіанті побудови установки дорівнює 4,7, що також вище за холодильний коефіцієнт звичайної аналогічної одноступеневої холодильної машини на 79%. Механічна енергія, що виробляється в енергетичній частині установки, повністю застосовується у холодильній. Використання граничного переохолодження рідкого робочого тіла, граничного перегріву пари холодильної та енергетичної частини установки та ізотермічного/політропного процесу їх стиснення позитивно позначилося на підвищенні ефективності холодильної частини установки
A NARRATIVA COMO CONSTRUÇÃO IDENTITÁRIA DE UMA PESSOA COM A DOENÇA DE ALZHEIMER
Authors: Mira Caio César Costa Ribeiro , Custodio Katiuscia de Almeida
Published: October 2022

O presente artigo tem como objetivo analisar como uma pessoa acometida pela Doença de Alzheimer (doravante DA) constrói sua identidade interativamente no contexto de uma entrevista narrativa. O cenário da DA constitui-se como um campo complexo, considerando as perdas ocasionadas pela doença que acometem a linguagem e a cognição e incidem significativamente na interação e na vida social cotidiana. Além disso, o crescente envelhecimento da população brasileira é uma realidade que pode desencadear o aumento da incidência da DA. Levando tais fatores em consideração, em nossas análises identificamos os recursos linguísticos empregados pela participante que evidenciam a coconstrução de sua identidade. Dessa forma, como fundamentação teórica mobilizaremos os estudos da narrativa oral e o conceito de identidade. As análises demonstram que a participante da pesquisa acometida pela DA utiliza pistas de contextualização e elementos de indexicalidade que permitem evidenciar a construção identitária.
C-reactive protein-to-albumin ratio is a predictor of 1-year mortality following liver transplantation
Authors: Kim Kyoung-Sun , Kwon Hye-Mee , Kim Jae Hwan , Yang Ji-Woong , Jun In-Gu , Song Jun-Gol , Hwang Gyu-Sam
Published: October 2022

Background: Considering the importance of the inflammatory status of recipients on outcomes following liver transplantation (LT), we investigated the association between C-reactive protein-to-albumin ratio (CAR) and one-year mortality following LT and compared it with other parameters reflecting patients’ underlying inflammatory status.Methods: A total of 3,614 consecutive adult LT recipients were retrospectively evaluated. Prognostic parameters were analyzed using area under the receiver operating characteristic curve (AUROC) analysis, and subsequent cutoffs were derived. For survival analysis, Cox proportional hazards and Kaplan-Meier analyses were performed.Results: The AUROC for CAR to predict one-year mortality after LT was 0.68 (0.65–0.72), which was the highest compared with other inflammatory parameters, with the best cutoff of 0.34. A CAR ≥ 0.34 was associated with a significantly higher one-year mortality rate (13.3% vs. 5.8 %, log-rank P < 0.001) and overall mortality rate (24.5% vs. 12.9%, log-rank P = 0.039). A CAR ≥ 0.34 was an independent predictor of one-year mortality (hazard ratio, 1.40 [1.03–1.90], P = 0.031) and overall mortality (hazard ratio 1.39 [1.13–1.71], P = 0.002) after multivariable adjustment.Conclusions: Preoperative CAR (≥ 0.34) was independently associated with a higher risk of one-year and overall mortality after LT. This may suggest that CAR, a simple and readily available biomarker, maybe a practical index that may assist in the risk stratification of liver transplantation outcomes.
Habad-Lubaviç Hasidiliğinin Ortaya Çıkışı ve Küresel Bir Harekete Dönüşümü
Authors: MEMİÇ Fatih
Published: October 2022

18. yüzyılda günümüz Polonya-Ukrayna’sında ortaya çıkan Hasidizm çeşitli zaddik aileleri vasıtasıyla gelişimini sürdürmüş ve bu zaddik çeşitliliği farklı hareketleri ortaya çıkartmıştır. Rusya’da ortaya çıkan Habad-Lubaviç de bunlardan biridir. Misyon faaliyetleriyle ezoterik öğretiyi anlaşılır ve uygulanabilir kılma düşüncesi hareketin karakteristik özelliğidir. Hasidizm içi mücadele, Mitnagdim’in ve Rusların baskısı, Siyonizm’in ortaya çıkışı, Amerika’ya göç ve Yahudi kimlik mücadelesi hareketin karakterini ve stratejisini belirleyen temel unsurlar olarak karşımıza çıkmaktadır. Habad-Lubaviç’in tarih sahnesine çıkışı, diğerlerinden ayrılışı ve küresel bir organizasyona dönüşümündeki kritik eşikler araştırmanın ortaya koymaya çalıştığı ana hedeftir.
Womanism in Crépuscule du tourment: Mélancolie by Léonora Miano
Authors: Tonleu Madeleine , De Beer Annamarie , Snyman Elisabeth
Published: October 2022

In this article we examine the notion of womanism as portrayed in the 2016 novel
Crépuscule du tourment: Mélancolie
(
Twilight of Torment: Melancholy
) by the Franco-Cameroonian author Léonora Miano . We explore how four female characters are subjected to discrimination on various levels: racial, sexist, and even linked to social divisions. We furthermore trace the religious, historical, cultural and sexual aspects of the identity crisis that each character undergoes. The tales by these four voices depicting their suffering and different defence strategies finally point to the womanism of the author herself which this article aims to discuss drawing on a range of definitions provided by scholars such as bell hooks, Molara Ogundipe-Leslie and Alice Walker. Our reading of the novel focusses on the mechanisms of resistance (exploration of homosexual relations, recourse to afrocentricity) deployed by these female characters in an environment where neither Western feminism nor activism seem to respond to the complexity of their alienation. Miano’s heroines attempt to reconstruct their identities in terms of culture, territory, the other and the “self”. Their revolt and courage to speak out constitute acts of self-determination. This emancipatory quest leads to a form of hybridity that embraces both modernity and traditional values, with its myths and customs, and which results in a reconstructed and plural identity. It also constitutes an approach by an African author that embraces both a return to the self and an openness to the outside world.
INFLUENCE OF ARTIFICIAL SALIVA AND ESSENTIAL OIL-BASED SOLUTIONS ON THE ELECTRICAL PARAMETERS OF NITINOL AND STAINLESS STEEL ARCHWIRES
Authors: Kojić Sanja , Simić Mitar , Aber Milica , Petrović Bojan , Stojanović Goran M.
Published: October 2022

This paper analyzes the variation in the electrical characteristics of NiTi and stainless steel archwires under exposure to different liquid media and temperatures. The archwires were enclosed in a microfluidic chip to obtain a controlled environment, mimicking oral cavity conditions. Five liquids were selected for testing: artificial saliva, Listerine mouthwash, cinnamon essential oil added to artificial saliva, eucalyptus essential oil added to artificial saliva and orange essential oil added to artificial saliva. Impedance spectroscopy was performed at three temperatures, (25, 37 and 50) °C, and in three different time intervals: at the start of the experiment, after three weeks and after six weeks of exposure. The impedance, its modulus and phase, and Nyquist diagrams were plotted, as well as the root-mean-square (RMS) deviation parameter. The results showed that both materials exhibited comparable responses with small changes over time.
INVESTIGATION OF Ni-P COATED BAMBOO FIBRE/NANO-TiO2 POLYESTER MATRIX COMPOSITE PROPERTIES
Authors: Ganapathy Magesh , Rasu Elansezhian
Published: October 2022

Natural-fibre-reinforced polymer composites are most commonly employed in the automotive, aerospace and structural industries. This research focuses on the synthesis and analysis of the dynamic properties of a bamboo fibre used with a polyester matrix in a nanocomposite produced with titanium oxide nanoparticles. Bamboo-fibre samples were prepared using the electroless plating method in both their uncoated and nickel-phosphorus-coated states. Bamboo-fibre contents of (4.5, 9, 13.5 and 18) w/% and nanoparticles of (0.5, 1, 1.5 and 2) w/% with and without the coating were examined for these qualities. Coated bamboo fibres were mixed with 13.5 w/% and 1.5 w/% of titanium oxide. It was concluded that dynamic and thermomechanical properties of the polyester matrix reinforced with bamboo fibres coated with nanoparticles allow excellent bonding as compared to the nanocomposite of the polyester matrix reinforced with uncoated bamboo fibres.
STUDY OF THE FIRST BOULOGNE-SUR-MER CEMENTS USED FOR A HISTORIC AQUEDUCT FROM THE 19TH CENTURY
Authors: Jebbawy Marwa , Thiery Vincent , Bouichou Myriam , Marie-Victoire Elisabeth , Davy Catherine , Izoret Laurent , Albert-Mercier Cyrille , Moreau Myriam
Published: October 2022

Natural and Roman cements are generally considered as the first binders of the 19th century concrete but their widespread usage was short-lived as they were quickly replaced by artificial cements (Portland), still the most important and predominant today. The Boulogne-Sur-Mer area in the North of France is one of the cradles of the French cement industry where the first French natural cement was produced in 1802 and the first French Portland cement at around 1850. These cements, natural and artificial, quickly gained a national and international fame. This paper presents a case study of a 19th century aqueduct, still in operation, with a focus on identifying the binders of concretes and mortars. Several combined techniques – optical microscopy (OM), scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS) and X-ray diffraction (XRD) – were carried out to characterize and determine the compositions of the binders present in the aqueduct. Phenolphthalein tests were carried out in order to evaluate the depth of carbonation in the concrete. Several concrete and mortar samples, from pinkish to greyish ones, were taken from the outer and inner parts of the aqueduct. Results show several clinker morphologies and compositions, and different types of hydrates. They also reveal important differences in the microstructure between natural and Portland cement, dated from an early period of the cement industry in France. The concomitance of the use of natural and Portland cement, and good durability of these materials highlight the know-how of the engineers in the 1860s on cement performances and characteristics.
CHARACTERISATION OF CONCRETE FROM THE RUPNIK MILITARY LINE
Authors: Turk Tilen , Štukovnik Petra , Marinšek Marjan , Bokan Bosiljkov Violeta
Published: October 2022

The Rupnik military line was established in about 1935 in the Kingdom of Yugoslavia as a defence system against the Kingdom of Italy. It consists of more than 4000 reinforced concrete military bunkers positioned on the eastern part of the Rapallo border, varying in size and purpose, and was a top-secret project at the time. Different non-destructive and non-invasive techniques were used to characterise the selected bunkers and carefully conceived concrete samples to gain an insight into the concrete technology used to build these historic military infrastructures. The results of the non-destructive techniques were further compared to those of destructive techniques for a given property. It was established that very different concrete compositions were used to build the bunkers, and an extensive dispersion of the properties was confirmed for each composition. The average compressive strength of the Schmidt hammer for a given position is an acceptable estimate of the actual compressive strength of concrete without destructive intervention into a bunker. It also enables an estimation of the secant modulus of elasticity using the ModelCode2010 approach. Cylinders drilled from a bunker provided additional information about the concrete petrography, its physical and mechanical properties and the durability of reinforced concrete.
ADHESIVE-STRENGTH ASSESSMENT OF LIME INJECTION GROUT USING STANDARDISED AND MODIFIED TEST METHODS
Authors: Padovnik Andreja , Bokan Bosiljkov Violeta
Published: October 2022

The adhesive strength of non-structural lime-based grouts used to stabilise sensitive, detached, decorative plasters is an important mechanical property. However, it is difficult to determine it due to the lack of suitable standard test methods. The existing standard procedures are mainly aimed at testing the properties of hydraulic binders and are not suitable for injection grouts or mortar specimens based on a lime binder. In the present study, the focus is on a comparison of the pull-off results between the standardised method (EN 1015-12) performed on pre-drilled specimens on sandwich panels (PMS) and the modified method using sandwich discs (DSS). It was found that the modified method with sandwich discs (DSS) achieved an up to 58 % higher adhesive strength than the standard method with sandwich panels. In the sandwich-panel specimens, fracture occurred in the grout since pre-drilling reduced the cohesive strength of the grout. For the sandwich discs (DSS), fractures occurred predominantly at the interface between the mortar and the grout.
The Dynamic Relationship between Technological Change and Employment: A Comparison of Youth and Total Employment using Panel VAR Approach and Causality Analysis
Authors: GÖRKEY Selda
Published: October 2022

This study empirically examines the relationship and causality between technological change and employment by comparing youth and total employment. It covers data from 16 OECD economies from 1985 to 2018 and uses multifactor productivity (MFP) as a proxy for technological change. The findings from the general method of moments panel vector autoregression (GMM Panel-VAR) approach indicate significant and positive effects of MFP on youth and total employment, and a significant yet negative impact of youth employment on MFP. According to Panel-VAR-Granger-Causality analysis results, there is a two-way causality between MFP and youth employment and a one-way causality from MFP to total employment. Thus, this study empirically confirms the job-creation effect of technology and finds out that the technological change and employment nexus differs for youth employment compared to that for total employment.
What Defines the University Choice? The Case of Higher Education in Kyrgyzstan
Authors: NAJIMUDINOVA Seyil , ISMAİLOVA Rita , OSKONBAEVA Zamira
Published: October 2022

This study analysed the effectiveness of university promotion methods and factors affecting applicants’ choices. The study used a quantitative approach with a sample of 7839 university applicants. Results show that the most influential factor affecting university choice is the economic factors such as tuition fees, scholarships, etc.; nevertheless, family income is not among them. Education quality and academic staff also affect the choice. Besides, there were differences in the factors such as gender, region, family structure and secondary school background of the applicants.
Do Trade Agreements and Economic Unions Create Clusters in Global International Trade?
Authors: SEVENCAN Ayşe , USLU Çağrı Levent
Published: October 2022

This paper employs a gravity model to assess the role of ex-post regional trade agreements and customs unions on trade patterns. The primary contribution of this paper to the conventional gravity modal is to embed trade agreements and determine whether they have significantly affected bilateral trade. The secondary contribution is to reveal intra and inter-union/agreement trade patterns among trade agreements and economic unions. Three dummy variables were also introduced to the conventional gravity model. Results showed a slight clustering in trade partners (a) depending on the distance and (b) depending on being a member of a trade agreement and/or economic union.