bluuebunny/crossref_metadata_2025 huggingface dataset:
Contribution of a constellation of two wide-swath altimetry missions to global ocean analysis and forecasting
Authors: Benkiran Mounir , Le Traon Pierre-Yves , Dibarboure Gérald
Published: May 2022

Abstract. Swath altimetry is likely to revolutionize our ability to monitor and
forecast ocean dynamics. To meet the requirements of the EU Copernicus
Marine Service, a constellation of two wide-swath altimeters is envisioned
for the long-term (post-2030) evolution of the Copernicus Sentinel 3
topography mission. A series of observing system simulation experiments
(OSSEs) is carried out to quantify the expected performances. The OSSEs use
a state-of-the-art high-resolution (1/12∘) global ocean data
assimilation system similar to the one used operationally by the Copernicus
Marine Service. Flying a constellation of two wide-swath altimeters will
provide a major improvement of our capabilities to monitor and forecast the
oceans. Compared to the present situation with three nadir altimeters flying
simultaneously, the sea surface height (SSH) analysis and 7 d forecast
error are globally reduced by about 50 % in the OSSEs. With two
wide-swath altimeters, the quality of SSH 7 d forecasts is equivalent to
the quality of SSH analysis errors from three nadir altimeters. Our
understanding of ocean currents is also greatly improved (30 %
improvements at the surface and 50 % at 300 m depth). The resolution
capabilities will be drastically improved and will be closer to 100 km
wavelength compared to about 250 km today. Flying a constellation of two
wide-swath altimeters thus looks to be a very promising solution for the
long-term evolution of the Sentinel 3 constellation and the Copernicus
Marine Service.
EDITORIAL
Authors: BATANERO CARMEN , JOLLIFFE FLAVIA R.
Published: May 2022

First published May 2002 at Statistics Education Research Journal: Archives
SHARING EXPERIENCES IN THE TRAINING OF RESEARCHERS
Authors: JOLLIFFE FLAVIA R.
Published: May 2022

First published May 2002 at Statistics Education Research Journal: Archives
NEW APPROACHES TO GATHERING DATA ON STUDENT LEARNING FOR RESEARCH IN STATISTICS EDUCATION
Authors: CHANCE BETH L. , GARFIELD JOAN B.
Published: May 2022

Over the last fifteen years there has been a strong emphasis on active learning, use of real data in the classroom, and innovative uses of technology for helping students learn statistics. A recent survey in the United States (Garfield, 2001) documents that many tertiary teachers of statistics courses have made changes toward these recommendations. Now more than ever, more research is needed on the effects of these instructional methods and materials on student learning, retention, and motivation. This research need first requires the determination of effective research methodology in statistics education. In assessing students' conceptual understanding, reasoning abilities, and attitudes, and their development, alternative methods of gathering student data are needed that supplement comparative experiments and improve on traditional assessment items that focus on calculations, definition, and rote manipulations. This article will present and critique additional methods for obtaining research data on how students develop an understanding of statistics, including classroom-based research and videotaped student interviews/observations.
First published December 2002 at Statistics Education Research Journal: Archives
Editorial
Authors: JOLLIFFE FLAVIA R. , BATANERO CARMEN
Published: May 2022

First published May 2003 at Statistics Education Research Journal: Archives
The Immediate Effect of Adding Lumbar Mobilization to A Static Stretching Program on Hamstrings Range of Motion: An Exploratory Study
Authors: Villers James , Cardenas Andrew , Gipson Travis , Man Emily
Published: May 2022

A contributing risk factor and a byproduct of a hamstrings strain is limited hamstrings range of motion (ROM). Some evidence supports static stretching (SS) and lumbar spinal mobilization therapy (LSMT) as an effective means for increasing hamstrings ROM. However, the efficacy of combining LSMT and SS for increasing hamstrings ROM is unknown. The objective of the study is to quantify the immediate effects of the combination of LSMT and SS compared to LSMT and SS on hamstrings ROM in a healthy population. Thirty participants were randomized by block allocation into one of three intervention groups: (1) LSMT (unilateral lumbar PA mobilization at L-4); (2) SS; or (3) combination of LSMT and SS. Hamstrings ROM was measured pre- and post-intervention by the active knee extension test (AKET). There was no group-by-time interaction effect (p = 0.871). Within group analysis revealed a significant statistical change and a large effect size: LSMT (p = .037, RCI = 3.36, d = 0.771); SS (p = 0.035, RCI = 2.94, d = 0.781); combination (p = .005, RCI = 4.21, d = 1.186. The findings suggest that the combination of LSMT and SS does not have a further effect on hamstrings ROM compared to the individual results of LSMT or SS.
Sistemas de Información Geográfica y distribución espacial de casos de COVID 19 en México
Authors: Flores Vilchez Fernando , Ávalos Jiménez Armando , Nájera González Oyolsi , González Pérez Mario Guadalupe
Published: May 2022

Este estudio analiza la evolución de la distribución espacial en áreas con alta densidad de contagios. La información está organizada y vinculada a una base de datos geográfica considerando las divisiones políticas y administrativas por estado y municipios. Posteriormente, se aplicaron métricas de distribución y estadísticas espaciales para detectar patrones de distribución. Desde noviembre de 2020 se ha identificado una tendencia en la concentración de casos hacia la zona central de México. El estudio reconoce la toma de decisiones del gobierno a través de la aplicación y seguimiento estricto de medidas restrictivas como el distanciamiento social y el uso de mascarillas tapabocas; una prioridad en las regiones con mayor riesgo de propagación. La implementación de Sistemas de Información Geográfica para el monitoreo, seguimiento, prevención y control de la pandemia permite identificar y reportar con precisión las áreas con mayor riesgo de contagio del virus.
Certificación de pequeños productores de palma de aceite. Problemática y perspectivas en Campeche, México
Authors: Isaac-Márquez Ricardo , Estrella Sánchez Andrea Guadalupe
Published: May 2022

El estado de Campeche se ha convertido en los últimos años en una de las regiones palmeras más importantes de México gracias a pequeños productores independientes. La certificación de las plantaciones resulta fundamental para un desarrollo sostenible del cultivo. El objetivo del presente trabajo es describir las prácticas de manejo de los pequeños productores con respecto a los requerimientos de la Roundtable on Sustainable Palm Oil (RSPO), mediante el estudio de caso de una comunidad rural con 20 años de incursionar en el cultivo. Los resultados indican que los pequeños productores carecen de las competencias para realizar prácticas productivas sostenibles y su nivel de cumplimiento de la norma RSPO es bajo. Se requiere instrumentar esquemas asociativos donde colaboren los actores de la cadena de valor del aceite de palma, para generar capacidades que permita a los pequeños productores certificarse bajo los principios y criterios de la RSPO.
Los paisajes agrarios de Canarias: metodología de análisis y propuesta de clasificación
Authors: Martín Martín Víctor Onésimo , Jerez Darias Luis Manuel
Published: May 2022

En el presente artículo proponemos una nueva clasificación de los paisajes agrarios canarios, basándonos en nuestras nuevas aportaciones teóricas y metodológicas, así como en el trabajo de campo y los avances generales de la investigación sobre el tema. Esta más detallada tipificación de los paisajes agropecuarios de Canarias se plantea conjuntamente con la necesidad de su estudio pormenorizado de los mismos, debido a la aportación que pueden realizar para disminuir la alta dependencia alimentaria exterior del Archipiélago y contribuir a la sostenibilidad de sus recursos naturales. Junto a lo anterior, en el estudio de la alta carga patrimonial de estos paisajes agrarios y en la necesidad de su protección y conservación puede la Geografía jugar un papel de primer orden.
Salomon Maimon y la revisión de la tabla kantiana de las categorías
Authors: López Narciso
Published: May 2022

En un libro de lógica de 1794, Salomon Maimon presentó una nueva tabla de categoríasque debía sustituir la que Kant incluyó en su Crítica de la razón pura. Sostengo que esto es la últimafase en la evolución de algunos aspectos fundamentales de su postura epistemológica. A partir de unacomprensión general de su teoría, voy trazando el desarrollo de su pensamiento sobre las categoríasdesde su primera obra en alemán, la Filosofía trascendental de 1789, hasta su mencionada Lógica. Lodivido en cuatro partes. En las dos primeras, describo la posición de Maimon como solidaria con elparadigma kantiano según el cual las categorías dependen de las formas lógicas del juicio. En la tercera,explico la inversión de este paradigma que Maimon acomete en su comentario a las Categorías deAristóteles. En la última parte, expongo que la nueva tabla de categorías refleja una mejora general desu teoría del conocimiento. Por último, exhorto a ampliar la comprensión de alguna noción clave de sufilosofía para propiciar una lectura más productiva.
Ariadna, la mortal-inmortal Queer
Authors: Espinoza Lolas Ricardo
Published: May 2022

Este artículo muestra varios detalles para entender la compleja figura de Ariadna en elpensamiento de Nietzsche, pero que va más allá del autor alemán y se sumerge en ciertos momentosde Ariadna, desde lo etimológico a Otto pasando por Ovidio y Catulo, para dar cuenta de una Ariadnaque es la compañera del dios Diónysos y que en cierta forma posibilita la propia verdad del dios; lo queNietzsche llamaría “eterno retorno”.
La identidad narrativa: un puente entre la hermenéutica y las ciencias sociales
Authors: Ibáñez Ruiz Ricardo
Published: May 2022

Este artículo nace de la necesidad de vertebrar un discurso alrededor de la función narrativaque nos permite tratar con nuestra vivencia del paso del tiempo cronológico desde su refiguraciónen un tiempo propio, al que dotamos de sentido. Para articular esta refiguración recurrimos a nuestraidentidad narrativa, sea como sujetos o como miembros de colectividades determinadas culturalmente.Paul Ricoeur construye este corolario aporético de Tiempo y narración conjugando el fracaso de larazón especulativa cuando trata con la experiencia temporal y la llaneza con la que cotidianamenteempleamos recursos narrativos para tratar con ella. A partir de este corolario hermenéutico reconstruimosel postulado, difusamente incorporado por la politología de las décadas finales del siglo XX, einterpretamos el sentido de la corrosión de las identidades que ocupa a la sociología contemporánea.Lo hacemos convencidos de la rentabilidad teórica del análisis genealógico que vincula el postulado encuestión con el corolario ricoeuriano.
Cano, M., Performatividad y vulnerabilidad, Barcelona: Shackleton Books, 2021.
Authors: Vizcaíno Guillén Alejandro
Published: May 2022

Recensión de: 

Cano, M., Performatividad y vulnerabilidad, Barcelona: Shackleton Books, 2021.

En este libro publicado en 2021 por la editorial Shackleton Books, la profesora Mónica Cano Abadía hace un estudio del pensamiento de Judith Butler a partir de los dos ejes principales que extrae de su obra: la performatividad y la vulnerabilidad. Por un lado, se deja claro que todas construimos nuestra identidad a partir de un mecanismo de repetición de normas que está sujeto a fallo y que, por tanto, puede ocasionar que nuestro cuerpo realice ciertos actos de habla cuyas consecuencias (tanto para uno mismo como para los demás) no sean las deseadas desde un principio. Por otro lado, también se indica que somos seres vulnerables de manera constitutiva, lo que quiere decir que necesariamente tendremos que establecer relaciones de interdependencia con las demás personas si queremos sobrevivir en este mundo. No somos individuos autónomos y libres que pueden llegar a construir su identidad independientemente de la mirada del Otro, pero tampoco somos meros seres pasivos que se configuran como resultado de una imposición y asimilación de las normas sociales.
La vigencia del pensamiento de Hannah Arendt: A propósito de Nuria Sánchez Madrid, Hannah Arendt: La filosofía frente al mal, Madrid, Alianza, 2021, 329 pp.
Authors: Ruiz Sanjuán César
Published: May 2022

El libro recientemente publicado por Nuria Sánchez Madrid sobre Hannah Arendt destaca tanto por el elevado nivel teórico que presenta como por la original aproximación a su pensamiento. La obra de Arendt es ciertamente una de las de mayor repercusión en el contexto del pensamiento político contemporáneo, lo cual ha dado lugar a una amplísima bibliografía en torno a ella. Por lo que constituye una tarea verdaderamente meritoria presentar un ensayo novedoso sobre su obra, que transcienda los lugares comunes que caracterizan a muchos de los ensayos que se publican sobre ella y abra nuevas perspectivas sobre su pensamiento. Esto lo consigue el libro de Nuria Sánchez Madrid a través de dos expedientes fundamentales. En primer lugar, sacando a luz toda una serie de presencias latentes en el pensamiento arendtiano, autores como Max Weber, Georg Jellinek, Ernst Cassirer o Alexander Kojève, que no aparecen explícitamente tematizados en la obra de Arendt y sobre los que las investigaciones prácticamente no han centrado la atención, pero que como se pone de manifiesto a lo largo del libro dejaron una huella en su pensamiento. En segundo lugar, confrontando a Arendt con algunas de las principales figuras del pensamiento político contemporáneo, como Judith Butler o Judith Shklar, lo que arroja nueva luz sobre determinados aspectos fundamentales de su obra, que normalmente son tratados desde la inmanencia del marco teórico que impone la categorización arendtiana y no se logra captar el carácter problemático de los mismos.
La literatura como tariqa: El pensamiento de Muhammad Iqbal entre la modernidad europea y la tradición islámica
Authors: De Diego González Antonio
Published: May 2022

Muhammad Iqbal es el filósofo islámico más importante del subcontinente indio contemporáneo. En su amplia obra hay un profundo diálogo entre la filosofía de la modernidad europea (Hegel, Goethe, Nietzsche), la tradición islámica (Rumi y el sufismo) y la filosofía de la india (Bartrihari, Guru Nanak) que conduce siempre hasta la trascendencia. El objetivo de este trabajo es, de forma transversal y por primera vez en español, mostrar esa tensión a través de su producción intelectual y literaria, haciendo hincapié en como este se convirtió en su tariqa (camino espiritual).
Contar la historia de la Ilustración. Reflexiones sobre la historiografía de la filosofía y su uso político
Authors: Mihura Enrique J. , Tizziani Manuel
Published: May 2022

En este artículo se pretende reflexionar sobre las formas en las que se hace historia de la filosofía; en particular, sobre el modo en el que se cuenta la historia de la Ilustración. Para ello, se analiza un reciente libro de Antony Pagden con la intención de echar luz sobre una práctica que parece resultar frecuente en la historiografía de este movimiento cultural y filosófico del siglo XVIII: la de su uso político. El trabajo está dividido en dos partes: primero, se realiza una crítica académica, concentrando la atención en el modo en el que Pagden construye su relato de la Ilustración. Luego, se realiza una exégesis política para clarificar qué propósitos parece haber perseguido el autor al momento de publicar su obra. En la conclusión, finalmente, se realizan una serie consideraciones de carácter metafilosófico.
El Mercado en el Ágora: La Retórica Deliberativa en Adam Smith
Authors: López Lloret Jorge
Published: May 2022

El presente artículo pretende mostrar la necesidad de interpretar la obra de Adam Smith a partir de la teoría retórica. Mas específicamente, de interpretar La riqueza de las naciones a partir de la retórica deliberativa. Para ello estudia el origen de su teoría del lenguaje, identificando y analizando sus fuentes a partir de la consulta del catálogo de su biblioteca personal, mostrando que Smith no consideraba el lenguaje como un recurso epistémico sino como un medio colectivo de construcción de la realidad social a través de la deliberación. Esto conduce a la definición de La riqueza de las naciones como un texto más retóricamente deliberativo que científicamente newtoniano. La principal conclusión revisa la interpretación de Smith como solo un apologista del libre mercado, proponiendo que su magna obra se construye como un diálogo armónico de múltiples voces y perspectivas. De esto deriva, como segunda conclusión, la necesidad de redefinir el estatus epistemológico de la teoría económica, integrándola como una voz más en el debate, siempre recurrente, en torno a la construcción social de la realidad.
La verdadera ciencia: método geométrico y filosofía en la Ética de Spinoza
Authors: Narváez Mario Andrés
Published: May 2022

En el presente trabajo, nos proponemos abordar el proyecto metodológico de Spinoza desde una perspectiva filosófica e histórica lo suficientemente amplía como para comprender adecuadamente las razones que lo llevaron a adoptar el método geométrico en la exposición de su filosofía. Si bien el tema ha sido largamente discutido por los comentadores de Spinoza en los cuatro siglos posteriores a la publicación de la Ética, creemos que los enfoques o bien son inadecuados o bien adolecen de cierta fragmentación, en el sentido de que abordan tal o cual aspecto, pero no unen todas las piezas que forman el rompecabezas. Asimismo, consideramos que una comprensión plena de la utilización del método geométrico realizada en la Ética, trasciende la mera cuestión de si tal aplicación fue exitosa o no en términos lógicos. Así pues, el objetivo fundamental del presente trabajo es reunir en una visión de conjunto diferentes aspectos que ayudan a comprender la elección metodológica de Spinoza, tanto aspectos históricos como sistemáticos. Con vistas a este fin, partimos de una hipótesis que nos permite entrever cierta unidad en las razones que llevan a Spinoza a optar por el método geométrico, a saber: nuestro filósofo se propone alcanzar un ideal de cientificidad, en el cual se combinan algunos elementos conceptuales de la tradición aristotélica con otros de la filosofía cartesiana.
Entre 'Schulphilosophie' y Ciencia Moderna. La filosofía de Christian Wolff
Authors: Sales Vilalta Guillem
Published: May 2022

En el presente trabajo se aspira a ofrecer una interpretación del lugar que Christian Wolff ocupa en la Historia de la filosofía moderna: se argumentará que Wolff, deudor de la Schulphilosophie germánica en diversos aspectos fundamentales, enriquece a su vez esta tradición con la incorporación de novedades intelectuales procedentes de la Ciencia Moderna europea. Para defender esta tesis, se ha dividido el artículo en dos grandes partes. En la primera se dará cuenta del concepto wolffiano de filosofía mediante un análisis del programático “Discursus praeliminaris de philosophia in genere” (publicado en 1728 a guisa de preámbulo a su Lógica latina). Terminada la clarificación primigenia, se desarrollará en la segunda parte una reflexión sobre en qué medida la Schulphilosophie germana y la Ciencia Moderna europea confluyen en la filosofía wolffiana.
La definición barroca de lo real en Descartes a la luz de la metafísica suareciana
Authors: Barroso Fernández Óscar
Published: May 2022

El presente artículo tiene por objetivo analizar los distintos sentidos del término “realidad” en la obra de Descartes. Como estrategia metodológica, se recurre a la comparación con la conceptuación de lo real en Francisco Suárez. Ello permitirá mostrar que en ambos autores se produce una tensión paradójica entre dos concepciones distintas de lo real: la objetiva y la existencial. Se defenderá que dicha tensión constituye una dimensión singular de la metafísica en el periodo barroco, mejor resuelta por Descartes que por Suárez gracias a la fundamentación teológica del conocimiento propuesta por el primero. Esta fundamentación asegurará la correspondencia de las ideas verdaderas, conocidas a priori, con la realidad extramental y dificultará la interpretación fenoménica y prekantiana de la ontología cartesiana en los términos de una reducción de la realidad a realitas obiectiva.
Non operative management of fractures of the humerus Evaluation of a new extension casting method
Authors: Prakash L , Dhar Shabir A
Published: May 2022

Fractures of the humeral shaft represent 2-4% of all fractures and functional bracing is the gold standard in conservative management. Complications like restricted shoulder range of motion and malunion of the proximal shaft fractures have however been reported. We conducted a retrospective chart re- view of patients treated with the extension casting method over a period of 16 years. Topographically, Garnavos P, M, D, PM and MD fractures and morphologically Simple, Complex and Intermediate fractures were included. Between 2003 and 2019, 74 patients were treated with extension casting. The fractures united at a mean of 10 weeks and there was no case of non-union. Humerus is one of the bones where conservative methodology is still very pertinent. Extension casting gives reproducible and good results. It also addresses patient comfort issues to a considerable extent by allowing shoulder motion and easier maintenance of personal hygiene.
Distal biceps tendon ruptures: more efficient diagnostics for a better outcome
Authors: Deschrijver Miguel , Hautekiet Arne , Steyaert Adelheid , De Muynck Martine , Luypaert Els
Published: May 2022

Distal biceps tendon ruptures are a rare pathology, but can have significant functional repercussions. Rapid, accurate diagnosis and treatment are es- sential for a favorable prognosis.

During the diagnostic process of distal biceps tendon ruptures, several problems can emerge.

An answer to the following clinical questions is given based on an extensive literature review.

– Which clinical tests are the most sensitive/ specific for clinical examination?
– Can ultrasound evaluation of the distal biceps tendon be optimized?
– Is ultrasound an equivalent alternative to MRI in the diagnosis of distal biceps tendon injuries?

An extensive literature search was conducted through Pubmed and Embase. The search strategy was developed systematically in the Medline data- base (PubMed interface), using medical subject headings as well as free text words.

A standardized clinical examination of the distal biceps tendon consisting of the Hook test, the Passive Forearm Pronation Test and the Biceps Crease Interval test has a high accuracy for correct diagnosis of full-thickness ruptures. Furthermore, Cobra sign, Supinator view and Pronator view give an additional value to the standard ultrasound examination of the distal biceps tendon. Finally, ultrasound can be considered a trustworthy and cost-effective alternative to MRI in evaluation of distal biceps tendon ruptures.
An analysis of cases presenting with a mass in the hand and an evaluation of treatment methods
Authors: Ogur Hasan Ulas , Arik Atilla , Kapi Emin , Cicek Hakan , Seyfettinoglu Firat , Bulut Mustafa
Published: May 2022

The aim of this study was to present and discuss our clinical experience of patients presenting with a mass in the upper extremity, in respect of demographic characteristics, localisation of the mass, clinical and pathological characteristics.

A retrospective evaluation was made of 114 cases (60 females, 54 males) who presented at our clinic with complaints of localised pain and swelling in the upper extremity between 1 June 2016 and 31 December 2018. The cases were separated into 3 groups; Group 1 with a mass determined in the carpal region, Group 2 with localisation between the wrist and the metacarpophalangeal joint, and Group 3, in the distal of the metacarpophalangeal joint.

The mass was of soft tissue origin in 90 cases, and of bone origin in 24 cases. The distribution of cases was 6 in Group 1, 20 cases in Group 2, and 88 in Group 3. The tumour was benign in 105 (92%) cases and a primary malignancy in 9 (7.8%) cases. Recurrence occurred in 4 cases, of which 2 were enchondroma, 1 was a giant cell tendon sheath tumour, and 1 was hemangioma

The majority of painful masses seen in the hand are benign and very few are malignant. In the approach to hand tumours, clinical evaluation guided by demo- graphic data, and the evaluation of diagnostic and treatment options according to the radiological ap- pearance and anatomic localisation will determine the ideal approach providing a full cure.
Mulher, identidade e discurso: visões plurais v.2
Authors: Nascimento Marcela Regina Vasconcelos da Silva , Xypas Rosiane Maria Soares da Silva , Gomes Jaciara
Published: May 2022

A obra "Mulher, identidade e discurso: visões plurais" visa pôr em relevo trabalhos, no âmbito da Literatura, da Análise do Discurso e das Ciências Humanas, que abordem lugares, representações e identidades da mulher. Considerando a identidade como uma criação sociocultural em constante elaboração e transformação, compreendemos que representações e identidades emergem na sociedade por meio de mecanismos discursivos e, portanto, indissociavelmente atrelados à linguagem. Em relação à construção de identidades femininas, sabemos que, durante muito tempo, em virtude do machismo e do patriarcado, a posição da mulher foi definida pela divisão sexual do trabalho, que lhe reservava o papel reprodutivo e o espaço privado. Todavia, embora a cultura patriarcal ainda estruture a sociedade, as transformações socioculturais, as quais se realizam por meio de práticas discursivas, ao propiciarem novas valorações e produzirem outras realidades, reverberam novos papéis femininos, gerando diferentes efeitos identitários. Diante disso, a obra reúne contribuições de pesquisadores que discutem a construção de representações e identidades da mulher em variadas esferas sociais: literatura, redes sociais digitais, jogos online, entre outras.
АНАЛИЗ ПРОЦЕССА ВЗАИМОДЕЙСТВИЯ РЕНИЯ С МЕТАЛЛАМИ
Authors: Агбалян С.Г. , Оганесян А.М. , Симонян В.А. , Варданян Д.Г.
Published: May 2022

Проведен анализ процесса взаимодействия рения (Re) с металлами. Показаны
преимущества рения как легирующего элемента при легировании конструкционных
сталей, особенно сталей, используемых в специальной технике. Обоснована высокая
термостойкость рения, что является результатом его высокой температуры рекристаллизации, равной 5000C (в отличие от вольфрама - W = 11000C). В то же время сплавы
рения, как и сплавы вольфрама, молибдена и тантала, помимо того, что теплостойкие
и трудно кипящие, обладают особой пластичностью. Это связано с тем, что в присутствии рения углерод выделяется из хрупких карбидов, образуя твердый раствор рения
и углерода.
Исследованы двойные и тройные системы рения с переходными металлами.
Показано, что сплавы довольно хрупкие, обладают высокой прочностью
(1,5∙1010…2,0∙1010 Н/м2
) и высоким удельным электросопротивлением (в пределах
10…200 мкОм.см), которое более чем на порядок выше, чем у выходных компонентов,
и примерно в 3…4 раза выше, чем электросопротивления насыщенных твердых растворов. Рений сохраняет высокую прочность и износостойкость при многократном
нагревании и охлаждении, т.е. обладает высокой термостойкостью. Его прочность при
температурах до 1200°C выше, чем у вольфрама, и значительно превосходит прочность молибдена (Мо). Электросопротивление рения почти в четыре раза больше, чем
у вольфрама и молибдена.
Dengesiz Veri Kümelerinin Sınıflandırılmasında Poligon Alan Metriğinin Sınıflandırıcı Performans Değerlendirilmesi İçin Kullanılması
Authors: AYDEMİR Önder
Published: May 2022

Son yıllarda makine öğrenmesi yöntemleri birçok disiplinde kullanılmaktadır. Araştırmacılar en uygun sınıflandırıcıyı belirlemek için birçok yöntemi yine birçok metrik ile birlikte test etmektedir. Özellikle düzensiz veri setleri için sınıflandırıcı performanslarını karşılaştırmak için kullanılan klasik metrikler (sınıflandırma doğruluğu, özgüllük, duyarlılık, eğri altında kalan alan, Jaccard indeksi ve F metriği) büyük tabloların oluşması ile birlikte takip edilebilirliği zorlaştırmaktadır. Diğer taraftan ise bir sınıflandırıcı bir metrik açısından yüksek performans sağlarken başka bir metrik açısından düşük performans sağlayabilmektedir. Tüm bunlar en uygun sınıflandırıcının belirlenmesini zorlaştırmaktadır. Bu çalışmada düzensiz veri setlerinde sınıflandırıcı performanslarını karşılaştırabilmek için poligon alan metriğinin (PAM) kullanılabileceği gösterilmiştir. Bu metrik sınıflandırma doğruluğu, özgüllük, duyarlılık, eğri altında kalan alan, Jaccard indeksi ve F metriğinin düzgün bir altıgen üzerinde oluşturdukları poligonun alanı üzerinden hesaplanırken, klasik metriklerin değerlerini de bu düzgün altıgen üzerinde görselleştirme esasına dayanmaktadır. Bu yöntem ile sınıflandırıcı performanslarının etkin bir biçimde karşılaştırılabileceği sonucuna varılmıştır.
SiO2/ZrO2 Nano Partikül Katkılı Alüminyum Matrisli Kompozitlerin Mekanik Özelliklerinin ve Mikroyapılarının Karşılaştırılması
Authors: ŞENEL Mahmut Can , ÜSTÜN Muzaffer
Published: May 2022

Bu çalışmada, toz metalürjisi yöntemiyle ağırlıkça farklı katkı oranlarında (SiO2: %1-9, ZrO2: %1-12) nano zirkonyum dioksit (ZrO2) veya silisyum dioksit (SiO2) katkılı alüminyum esaslı kompozitler üretilmiştir. Üretilen numunelerin faz yapısı, basma dayanımı, sertliği, yoğunluğu ve mikroyapısı sırasıyla; X-ışını kırınımı cihazıyla, basma test makinasıyla, mikro Vickers sertlik ölçüm cihazıyla, Arşimet yoğunluk ölçüm kitiyle ve taramalı elektron mikroskobuyla incelenmiştir. Yürütülen testler neticesinde; en yoğun mikroyapı ve en üstün mekanik özellikler Al-%9ZrO2 (basma dayanımı: 288 MPa, sertlik: 69 HV) ve Al-%6SiO2 (basma dayanımı: 267 MPa, sertlik: 50 HV) kompozit yapıda elde edilmiştir. Saf alüminyuma kıyasla Al-%6SiO2 kompozitin basma dayanımı ve sertliği %44.3, %66.7 oranlarında artarken; Al-%9ZrO2 kompozitin basma dayanımının ve sertliğinin %55.7, %130 oranlarında arttığı belirlenmiştir. Sonuç olarak aynı katkı oranında kullanılan ZrO2 partiküllerinin, SiO2 partiküllerine kıyasla alüminyum matrisin mekanik özelliklerini iyileştirmede daha etkili olduğu tespit edilmiştir.
Benders Decomposition Algorithm for Solving the Type-II Simple Assembly Line Balancing Problem with Zoning Restrictions
Authors: HAMZADAYI Alper
Published: May 2022

This paper considers the type-II assembly line balancing problem under zoning constraints, where a number of tasks must be assigned to a number of workstations while respecting compatibility (or otherwise) between tasks and stations, and by observing the precedence relationships between tasks. The objective is to minimize the latest completion time at any station. The paper proposes an exact algorithm that takes into account an exact formulation of the problem as well as iteratively introduces a set of constraints in the spirit of Benders decomposition. In addition to boundary constraints on the decision variables, the algorithm makes use of combinatorial cuts and a referenced local search in order to generate upper bounds. The algorithm is extensively evaluated on benchmark instances, which indicates that it outperforms the state-of-the-art approaches to the problem.
Singüler Pertürbe Özellikli Yarılineer Gecikmeli Diferansiyel Denklemlerin Nümerik Çözümleri
Authors: DURU Hakkı , GÜRBÜZ Bahar
Published: May 2022

Bu çalışmada sabit gecikme içeren singüler pertürbe özellikli kuasilineer diferansiyel denklemlerin nümerik çözümleri araştırılmıştır. Lineer baz fonksiyonları ve interpolasyon kuadratür kurallarını kullanarak Boglaev-Bakhvalov tipli şebeke üzerinde sonlu fark şeması kurulmuştur. Ayrık maksimum normda hata yaklaşımları elde edilmiştir. Teorik analizi doğrulamak için bir adet nümerik örnek çözülmüştür.
A painful skeleton disarticulated by acute anterior poliomyelitis
Authors: Armada Luciana , Fernandes do Nascimento Jacqueline , Mafra Moreno Adalgiza , da Silva Catharino Antônio Marcos , Orsini Marco
Published: May 2022

Introduction: Acute anterior poliomyelitis (AAP) is an endemic human disease caused by a worldwide spreading enterovirus. The late consequences of AAP include a new picture of muscle weakness together with abnormal muscle fatigue, amyotrophy, and myoarticular pain, configuring a condition known as post-polio syndrome (PPS). This new condition comprises a specific set of health problems due to the polio virus, resulting in decreased functional capacity and/or the onset of new disabilities.
Case Report: A 53-year-old female, human resources analyst, reported that she had been shaken by AAP at the age of 2. Currently she was presented with gait on the knees, osteo-myoarticular pain, inadequate synergies of movements. Imaging exams showed great disproportion in the pelvic region with marked amyotrophy and liposubstitution of the muscle, more evident in the left leg. Although there was some preservation of the plantar flexor muscles, interstitial edema was evident. In the thighs there was amyotrophy with liposubstitution of the muscle, more evident on the left. In the left knee joint there was a lesion of the cruciate ligaments with extensive deep chondral erosions in the load area of the femorotibial compartment, with exposure of the subchondral bone, without edema. Osteopenia also affected it.
Conclusion: Through the data obtained in this study, it can be seen that there are many reasons why patients affected by post-polio syndrome develops bone deformities and joint interferences that cause the individual to suffer losses and aggravations in health and quality of life. Nevertheless, there is a lack of theoretical framework available in the literature, justifying the importance of further studies on this topic.
Produção de detergente a partir da reciclagem de resíduos de uma fábrica de embutidos, visando ganhos ambientais e econômicos
Authors: Da Natividade Melina Tiemi Murata , Conceição Gyselle dos Santos , Nascimento Fabiana Cristina de Araújo , Brasil Davi do Socorro Barros
Published: May 2022

O gerenciamento sustentável ativo nas empresas tem contribuído para o seu desenvolvimento social, econômico e ambiental. Almejando alternativa que possa interagir redução de custos com preservação do meio ambiente, as empresas comprometidas buscam benefícios para a sociedade onde estão inseridas. Assumindo a responsabilidades de diminuir o impacto de suas atividades e destinar um fim para seus resíduos respeitando as políticas públicas. A empresa do presente estudo buscou alternativas para seus resíduos junto a Universidade Federal do Pará (UFPA), que através de estudos e análises desenvolveu um detergente líquido que pudesse ser utilizado dentro da própria unidade fabril, mas que posteriormente pudesse ser utilizado em outras áreas. Foram desenvolvidas cinco formulações, com a menor variedade possível de aditivos, visando uma redução de custo na aquisição de produtos de limpeza e menos danos ao meio ambiente.
A educação ambiental como ferramenta para uma alimentação saudável: experiência em uma ecoescola
Authors: Conceição Gyselle dos Santos , Corrêa Solange Maria Vinagre , Conceição Silvio dos Santos , Nascimento Fabiana Cristina de Araújo , Brasil Davi do Socorro Barros
Published: May 2022

Com o objetivo de incentivar o plantio e consumo de hortaliças em uma Ecoescola, realizou-se uma experiência em Educação Ambiental. Inicialmente foi explicado para os alunos os benefícios da alimentação saudável. Em seguida, os alunos vivenciaram o plantio e rega de algumas sementes de hortaliças. Apontamos que, a experiência do plantio, rega e, acompanhamento no processo de germinação e crescimento, vivenciadas pelos discentes, contribuiu para uma melhor compreensão ambiental, pois, foram tomando parte no processo de sensibilização, do despertar para a consciência ambiental, do respeito e trabalho em equipe, da observação do que os cerca. Propor atividades ambientais a alunos é uma forma de fazer com que se reconectem ao mundo natural. Espera-se que novas ações-ecológicas possam surgir na Ecoescola através da Educação Ambiental e, assim, poder agregar valores para uma sociedade sustentável, responsável pelos seus atos, onde a sensibilização ambiental se faça presente no seu cotidiano.
Formação de professor e a educação do campo: reflexões sobre educação ambiental
Authors: Oliveira Pantoja Marcielen , Matos de Sousa Jean Carlos , Soares Cardoso Eduardo Manuel , Cardoso de Souza Tatiane , Serrão Nascimento José Wilton , Vasconcelos Ferreira Magali Rosane , Quaresma Moraes Lobato Ediliane , Costa José Francisco da Silva
Published: May 2022

Esse artigo procura verificar a formação de professor e a educação do campo enfatizando reflexões sobre Educação Ambiental. Nesse sentido, enfatiza uma abordagem à educação ambiental nos contextos escolar e rural, os sujeitos da educação do campo e o meio ambiente, a política nacional de educação ambiental na formação dos professores, a educação ambiental na formação dos professores e a construção do currículo e a geração à transformação. Percebe-se, de acordo essa abordagem, que a escola representa o lugar onde ocorre a inserção das práticas educacionais inerentes ao meio ambiente, tendo em vista que a formação profissional se torna essencial para promoção de um processo de ensino e aprendizagem eficaz, principalmente quando a educação ambiental se torna o centro da conscientização e valorização para o ambiente educacional.  Levando em consideração o contexto dessa temática ambiental, a escola passa a ser vista como o principal cenário que permeiam reflexões à questão do meio ambiente como a preservação e a valorização. Conclui-se a pesquisa considerando que a escola representa um excelente ambiente para que o professor venha cada vez mais aprofundar a discussão sobre a importância da inserção de disciplinas relacionadas à educação ambiental, sem, no entanto, que ele mesmo também deve seguir uma trajetória dinâmica de formação continuada para criação de inovações metodológicas tão essenciais para o processo de ensino e aprendizagem.
The effect of emotion regulation training on psychological well-being and school burnout of nursing students
Authors: Feize Aras , Nekavand Mehrandokht , Moghaddam Ladan Fattah
Published: May 2022

Purpose: Understanding the importance of psychological well-being and school burnout in nursing students, as young human resources with high job sensitivity, the present study aimed to study the effect of emotion regulation training on nursing students' psychological well-being and school burnout. Design/methodology/approach: This experimental-interventional study was conducted at Kurdistan University of Medical Sciences (n = 381). Ninety nursing students were selected by stratified random sampling according to inclusion criteria. The participants were placed in two case groups (n = 45) and control (n = 45). Emotion regulation training was designed and implemented for the case group. Data collection tools included self-design demographic questionnaires, school burnout of Brusso scale, and psychological well-being of Warwick Edinburgh scale. The validity and reliability of the tools were evaluated and confirmed. The data were collected before and one month after the intervention for both groups. Finally, they were analyzed using SPSS-v24 software. Findings: The mean (±SD) of psychological well-being scores of the participants in the intervention group before and after the implementation of emotion regulation training were 47.91 (5.70) and 55.35 (4.99), respectively.
Investigating the potentiality of various inflation-protected investments for investors in Iran
Authors: Annaby Zhila , Mirzaei Hossien , Salahi Javad
Published: May 2022

This study aimed to investigate the potentiality of inflation-protected investments for investors in Iran. The objective of the present study was applied, and the methodology was correlational, which an ex-post facto research design was developed to explore the correlation between variables. Here in this study, the required data (e.g., time series pertaining to the total stock price index, housing, bond, gold, and coin prices as well as dollar prices in the unofficial market) were collected to distribute capital among asset groups and then econometric concepts and models were used to analyze these time series aiming to predict the returns and standard deviations as well as covariances of future periods. To determine the changes and relations between different assets and simulate the rate of return in the presence of macroeconomic factors, Burberry’s (2000) and Campbell et al.’s (2003) methods were used. After static model variables were discovered, Schwartz-Bayesian (SC), Akaike (AIC), and Hannan Quinn (HQ) criteria were employed to determine the interrupt length. Eviews software was used to analyze the data to estimate the VAR model and Matlab software to resolve the mathematical programming problem.
Studying child rearing strategies according Imam Reza’s (AS) Sireh during the outbreak of COVID-19
Authors: Fazeli Hamidreza , Fazeli Alireza , Fazeli Amirhossin
Published: May 2022

Disciplining children in the family results in human growth and excellence. Imam Ali ibn Musa al-Reza’s (AS) upbringing method represents a dimension of his lifestyle. This research intends to study Imam Reza’s (AS) specific child rearing method, or Sireh, with a descriptive-analytical approach and to explore the basis of this method, as well as how it can be used during the outbreak of COVID-19. Through examining the hadiths and narrations that refer to Imam Reza’s Sireh in child rearing, both directly and indirectly, the following are among the most important disciplinary methods that can be utilized during the outbreak of COVID-19; 1. Belief education, 2. Religious education, 3. Scientific education, 4. Sex education by encouraging children to marry, 5. Psychological education by praising children, 6. Moral education through good behavior within the family, 7. Emotional education by expressing love and affection, 8. Personality education with mutual respect; 9. Physical education with child care; 10. Social education under parents’ supervision and 11. Intellectual education.
Role of traditionally used Indian medicinal plants in animal models of depression with reference to flavonoid-rich ethanol extract of Abrus precatorius and Neolmarckia cadamba leaves
Authors: Bhore Pritam Gokuldas , Goyal Swapnil
Published: May 2022

Flavonoid is an active phytoconstituent that was identified from ethanol extract of Abrus precatorius (ApEe) and Neolmarckia cadamba (NcEe) leaves. In the present study, flavonoid-rich ethanol extract of both plants was studied for its antidepressant activity in stress induces depression. The phytochemical study reveals the presence of flavonoids, as flavonoids shows significant effects to improve the mood. It plays an important function in stress- induced depression; hence in this study includes pharmacological evaluation for the antidepressant effect of ethanol extract of both plants which was examined separately. The antidepressant activity of the prepared extract was estimated by despair animal models. In the present experiment, we selected forced swim test in the rat (rFST), mice tail suspension test (mTST) and locomotor activity was also examined in the open field test. A Comparative profile of the test formulation of ethanol extracts of Abrus Precatorius (ApEe) and Neolmarckia Cadamba (NcEe) was assessed for effect on immobility time in rFST and mTST at dosages 100 mg/kg and 200mg/kg. ApEe shows significant (p<0.001, 77.17±1.537) reduction of immobility duration time in rFST at 200 mg/kg dose, however in mTST it was significant (p<0.003, 98.67±16.77) with 100 mg/kg and more significant (p<0.0138, 78±2.716) at 200mg/kg.
Biotyping of human body based on Siddha literature with focus on traditional herbs for Tri-humoral harmony
Authors: Balagurusamy K , Jothi J , Jeeva Gladys R , Risvan M. Y , Selvaraj J
Published: May 2022

The Siddha system is the most ancient medical system. According to Siddha medicine, the human body is a replica of the universe. This system believes that all objects are made up of 5 basic elements such as earth, water, fire, air, and space. The food which human consumes is also made of these five elements and they constitute the trihumours vatham, Pitham and kabam. The proportion of elements present in drug vary and their preponderance is responsible for certain activities and therapeutic effects. Siddha medicine emphasizes that medical treatment is oriented not merely to disease but has to consider the patient’s environment, age, sex, race, mental frame, habitat, diet, physiological constitution, etc. This article explores the nature of body constitution, susceptible diseases, and taste impact on trihumoural harmony.
To assess the effectiveness of shorter MDR Regimen in tertiary care centre in Western UP
Authors: Mittal Santosh , Vohra Devinder Kumar
Published: May 2022

Background: In an attempt to reduce the length of conventional MDR TB regimen for 18months or more WHO updated its treatment guidelines in May 2016and included a recommendation on the use of Standardised Shorter MDR TB regimen with seven drugs and a treatment duration of 9to 12 months. The study explored the experience of the programmatic management of tuberculosis on a shorter injectable containing MDRTB regimen in a tertiary care centre in western Uttar Pradesh, India. Materials and Methods: Retrospective analysis of the data in a tertiary care centre in western up was carried out. The following attributes were included in outcome analysis: 1) Cured, 2) Treatment completed, 3) Treatment failure, Treatment regimen changed, 4) Died, 5) Lost to follow up. Results: Out of 87cases 43 are Male and 44 are female. Out Of the 87cases, 15 Cases were Cured ,57 Cases Treatment Completed, in 7 Patient treatment is changed or treatment is failed, 7 patients died in which 3 patients are female and 4 patients are male and 1 lost to follow up.
Blood donors
Authors: Khattri Jyotsana , Sanwelka Madhvi , Dutta Shyamoli , Awasthi Seema
Published: May 2022

Evaluation of TTI (transfusion transmitted infections) are essential for assessing the safety of blood supply and monitoring the efficacy of currently employed screening procedures. Objective: To assess the prevalence of HBV, HCV and HIV among replacement donors and voluntary donor in association with the Kuppuswamy’s socioeconomic status. Material and Methods: A retrospective analysis of total 10569 blood donors from Jan2014 to Sep 2015 was conducted at a blood bank in a tertiary care hospital in North India, Teerthanker Mahaveer Medcial college and research centre. Donor with hemoglobin (Hb) less than 12.5gm% or known seropositive for TTI were deferred and excluded from the study group. The hemoglobin level was measured by copper sulphate method, samples were screened for: a) HIV-1 and p antigen ELISA kits from Mitra& Co. ltd , for anti HIV I and II 4th generation Microlisa- HIV Ag and Ab. b) HBsAg- Hepalisac) anti HCV d) Malaria Age) Syphilis. Observation: The prevalence of HBV and HCV was noted to be higher among replacement donors as compared to voluntary donors, while in HIV, the prevalence was noted only in voluntary donors. Total 10,569 blood donors were grouped as per the KSESS, maximum donors in lower middle class III-5789.