bluuebunny/crossref_metadata_2025 huggingface dataset:
O Ensino de Ciências em um contexto de inclusão escolar: um estudo de caso
Authors: Brandl Cândida Alíssia , Pereira Agnaldo Paula , Silva Malheiros Luiz Humberto , Medeiros Daniela
Published: June 2021

O processo de educação escolarizada, se pensado de modo inclusivo, considerará os diferentes sujeitos, bem como seus estilos e tempos de aprendizagem. Quando tratamos de pessoas com deficiência intelectual, tal pensamento precisa se dar de forma mais apurada, respeitando as vivências e as especificidades destes sujeitos e reconhecendo suas particularidades. (Re)conhece-los, considerar a sua deficiência e buscar metodologias que alcancem suas expectativas e necessidades pode ser uma maneira de garantir a aprendizagem de todos. Sendo assim, o presente artigo busca retomar questões significativas à aprendizagem desses sujeitos mediante aspectos teóricos que norteiam essa temática, utilizando conteúdos e concepções da área das ciências da natureza. Metodologicamente este trabalho se caracteriza como um relato de experiência, discorrendo sobre uma intervenção que ocorreu em uma escola da rede pública, como decorrência da disciplina Prática Pedagógica do curso de Licenciatura Plena em Química. Foram utilizadas metodologias ativas e passivas que levam em consideração  as questões referentes a esses sujeitos (em um entendimento global  de sua constituição e desenvolvimento ), permitindo perceber que é possível haver uma aprendizagem significativa, assim como o processo de inclusão escolar.
Educação Ambiental e Educação em Ciências: distanciamentos e aproximações a partir da Sociologia da Educação
Authors: Barbosa Renan De Almeida , Robaina José Vicente Lima
Published: June 2021

O presente ensaio teve como objetivo refletir sobre as questões de socialização enquanto processo intrínseco da constituição individual e coletiva dos sujeitos e suas interações entre si, tendo como enfoque o processo educativo e o sistema de ensino. Especificamente, debate-se a proposta de Educação Social em uma sociedade democrática planificada com bases na ideia de cooperação defendida por Karl Mannheim. Nesse sentido, argumenta-se que a prática educativa condizente com uma sociedade progressista deve preparar as novas gerações para a participação social através do conhecimento científico contextualizado com os conhecimentos cotidianos, incorporados às dimensões atitudinais e comportamentais pautadas em valores democráticos.
Substâncias que interferem no comportamento de adolescentes: Sentidos e significados socioculturais
Authors: Bernard Aline , Regis Jean Gabriel , De Oliveira Boff Eva Teresinha
Published: June 2021

O uso de substâncias psicoativas, hábitos alimentares não saudáveis e estilo de vida inadequado, são práticas identificadas na maioria do público jovem. O objetivo desta pesquisa foi compreender as implicações do uso de substâncias alimentares e/ou psicoativas em adolescentes e sua influência na saúde. Foi realizada uma revisão integrativa pela busca nas bases de dados Capes, PubMed, Lilacs e Medline, no período de 2010 a 2020, com a associação dos descritores: comportamentoandadolescentes and hábitos alimentares andensino; alimentação and adolescentes and substâncias psicoativas; comportamento andadolescentes and cultura andalimentação. Foram encontrados 4.048 artigos. Destes, 262 foram selecionados para leitura na íntegra. Destacamos, neste artigo, uma das categorias que emergiu da análisedenominada: “Estilo de vida e hábitos inadequados como facilitadores para comportamentos de risco aos agravos à saúde”. A compreensão desta categoria ocorreu a partir das reflexões sobre a relação sociocultural, comportamental e ambiental do referencial teórico de Pierre Bourdieu. Identificamos que os comportamentos de risco estão relacionados com fatores ambientais, comportamentais e culturais. Evidenciamos, nas pesquisas, que sedentarismo, hábitos alimentares não saudáveis, uso de substâncias psicoativas e distúrbios alimentares, são comportamentos de risco para a saúde. As influências culturais estão relacionadas principalmente com o consumo de álcool, sendo o primeiro contato geralmente com a família. Em relação aos hábitos alimentares, encontramos artigos que discutem sobre a dependência do açúcar e relatama preferência por esta substância em dependentes químicos. Concluiu-se que grande parte dos estudos que analisam eventos com adolescentes identificou comportamentos de riscos associados com as dimensões socioculturais.
РОЛЬ КОГЕЗИНОВОГО КОМПЛЕКСА В ХОДЕ СЕГРИГАЦИИ ХРОМОСОМ
Authors: Яхьяева Х.И.
Published: June 2021

Во время каждого клеточного деления весь геном должен быть продублирован и разделен таким образом, чтобы каждая из дочерних клеток унаследовала полную копию генома без каких-либо изменений. Считается, что ошибки в этих процессах лежат в основе рака и ряда генетических заболеваний. Ключевой особенностью для контроля целостности генома является когезия сестринских хроматид, которая обеспечивается с помощью когезинового комплекса. Когезин удерживает сестринские хроматиды вместе по всей их длине, от фазы S до начала митоза. В клетках животных когезин затем удаляется из ДНК двумя отдельными волнами. Первая стадия удаления когезина называется «профазным путем» и зависит от антагониста когезина Wapl. Этот путь специфически удаляет когезин из хромосомных плеч. Важно, что центромерный когезин защищен от этой активности удаления, что приводит к хорошо известной X-форме митотических хромосом. Центромерный когезин д. сопротивляется притягивающим силам микротрубочек до того момента, когда кинетохоры всех хромосом правильно прикрепятся к митотическому веретену в метафазе. Затем, по достижении контрольной точки сборки шпинделя, активируется вторая волна удаления когезинов. Этот шаг зависит от Separase, который протеолитически расщепляет оставшуюся центромерную когезию и тем самым запускает разделение сестринских хроматид на противоположных полюсах клетки.
ТЕНДЕНЦИИ РАСШИРЕНИЯ АРЕАЛА ИНВАЗИОННОГО ВИДА NEOGLYPHODES PERSPECTALIS НА КАВКАЗЕ
Authors: Сапарбаева Л.М. , Арсанукаев Д.Д.
Published: June 2021

В статье представлены точки находок Neoglyphodes perspectalis в Чеченской Республике как инвазионного вредителя, стремительно распространяющегося на территории юга европейской части России. Данный фитофаг был обнаружен в насаждениях различных видов самшита Чеченской Республики. В 2013 г. гусеницы этой огневки нанесли фатальные повреждения искусственным посадкам самшита в Большом Сочи и Новороссийске. Представлена карта ареала распространения огневки самшитовой на территории Кавказа. Для визуализации данных по находкам и сравнениям ареала распространения представлены карты, воспроизведенные при помощи программ QGIS, GBIF. Проведена сравнительная аналогия карт ареала распространения вида 2012, 2017 и 2020 гг., где четко прослеживается ее стремительное распространение в сторону северо-востока за достаточно короткий промежуток времени.
MODELOS EXPERIMENTAIS EM ANIMAIS PARA PESQUISA NA ÁREA DE
PERIODONTIA E IMPLANTODONTIA: REVISÃO DE LITERATURA
Authors: Brito Talyssa Pequeno de , Lima Flávia dos Santos , Rocha Caio Cavalcante da
Published: June 2021

Modelos animais são necessários para avaliar objetivamente a patogênese das doenças periodontais em seres humanos e suas várias modalidades de tratamento. Baseado nisso, foi realizada esta revisão de literatura tendo como foco suas indicações e contraindicações, benefícios para o paciente, bem como vantagens e desvantagens de cada modelo estudado. Para isso foi realizado um levantamento bibliográfico nas bases de dados Medline, Pubmed, Lilacs e Bireme, no período de 2006 até 2015, utilizando como palavras chave os termos: modelos experimentais, pesquisa cientifica; periodontia, implantodontia. O uso desses modelos vem sendo crucial para o desenvolvimento de novas técnicas e mudanças de paradigmas na pesquisa cientifica. Com base neste estudo, observou-se que modelos experimentais têm sido desenvolvidas de modo a reproduzir as principais doenças periodontais (gengivite, periodontite), sua patogênese e investigar novas técnicas cirúrgicas
A EPISTEMOLOGIA FLECKIANA NA PRODUÇÃO ACADÊMICA BRASILEIRA
Authors: Nobre-Silva Nara Alinne , Silva Roberto Ribeiro da
Published: June 2021

Este artigo tem como objetivo a realização de um balanço analítico da produção acadêmica brasileira que buscou subsídios teórico-epistemológico nas ideias de Ludwik Fleck. Logo, foi realizado um estudo do tipo Estado do Conhecimento, em que foram localizados, por meio do Catálogo de Dissertações e Teses da CAPES e/ou da Biblioteca Digital Brasileira de Teses e Dissertações, 59 trabalhos, concernentes ao período 2016-2020. Os resultados, quando contrastados com estudos anteriores, apontam que nos últimos anos, o referencial tem permeado instituições das regiões nordeste, centro-oeste, sul e sudeste e, em programas diversos, como: Antropologia Social, Medicina Veterinária, Ciências Biológicas – Botânica, Ensino de Ciências e Matemática e, História. No que tange ao objeto de estudo, os mesmos foram classificados em seis subcategorias e, há ampla produção relacionada à formação de professores e a análise de fatos científicos. Destacam-se, principalmente, as contribuições das categorias estilo de pensamento, coletivo de pensamento e, circulação intra e intercoletiva de ideias. Por desdobramento, surgem novas inquietações a respeito da existência de um coletivo de pensamento cujo objeto de estudo é a própria epistemologia fleckiana e, da possível existência de desvios de significados na apropriação desta, pelos pesquisadores brasileiros.
Valoración del nivel de integración del Sistema Regional de Innovación Transfronterizo de la uva de mesa en la región Sonora - Arizona.
Authors: Delgado Saldívar Martín Alberto , Wong-Gonzalez Pablo
Published: June 2021

La región Sonora-Arizona tiene antecedentes históricos y fuertes vínculos económicos y sociales que conllevan a considerarla como una región binacional. En años recientes, aparte del crecimiento e intensificación de la integración transfronteriza de actividades productivas particulares, también se ha intentado impulsar la colaboración en las áreas de ciencia y tecnología, buscando la creación de Sistemas Regionales de Innovación Transfronteriza (SRIT). El objetivo de este trabajo es realizar una valoración del nivel de integración del SRIT en un sector específico, la uva de mesa. La valoración se llevó a cabo mediante la metodología propuesta originalmente por la Organización para la Cooperación y el Desarrollo Económicos (OECD por sus siglas en inglés), la cual se integra por diez dimensiones, a su vez conformadas por variables que son consideradas como “proximidades”. Las variables originales se operacionalizaron para utilizar estadísticas secundarias disponibles y valorar las dimensiones para con ello plantear el nivel de integración. Este proceso metodológico se propone para evaluar regiones asimétricas como es esta región transfronteriza.
Afecciones y oportunidades del turismo alternativo en la región Sonora, Arizona y Nuevo México durante la pandemia de COVID-19
Authors: Figueroa Egurrola Diana , Ramírez Rodriguez Roberto
Published: June 2021

La pandemia por coronavirus ha repercutido en la economía mundial, siendo el sector turístico uno de los sectores más afectados, por su caída en el número de visitantes extranjeros, el ingreso, empleo y entrada de divisas al país. El objeto de la investigación es estudiar las afecciones por la pandemia en el turismo mundial, haciendo énfasis en la región de Sonora, Arizona y Nuevo México, así como una posible reactivación turística de la región a partir de prácticas enfocadas al turismo ecológico. Mediante la revisión de literatura sobre el tema, se concluye que es necesario apoyar nuevas opciones complementarias al turismo de masas tales como el ecoturismo y el turismo alternativo que se basan en actividades mayormente al aire libre, que cumplen con las especificaciones para realizarse con distanciamiento social y prevención ante la contingencia sanitaria. Particularmente, se propone el impulso al aviturismo o turismo de observación de aves, una práctica ya posicionada en Estados Unidos antes de la pandemia y que consideramos tiene un gran potencial como actividad alternativa y complementaria al turismo tradicional.
Autoridad profesoral e implicaciones en la formación de los estudiantes de la Universidad de Sonora
Authors: Hernández Camarena Karla Beatriz , Zayas Pérez Federico , Cubillas Rodríguez María José
Published: June 2021

El objetivo del estudio es describir el significado de autoridad profesoral que tienen los estudiantes de la Universidad de Sonora, los tipos de vínculos de autoridad profesoral que reconocen y explorar, además, cómo tal autoridad está implicada en su formación. En el marco conceptual se analizan los conceptos de significado, autoridad profesoral y formación. La investigación se orientó por un enfoque interpretativo y el método fenomenológico, a través de la técnica de entrevista. La experiencia que tienen los estudiantes de la Universidad de Sonora con la autoridad profesoral fue el punto de partida de la indagación. En los resultados se advierte la presencia de tres significados de autoridad profesoral: el poder, el respeto y la distinción; y que los tipos de vínculos establecidos con sus maestros se basan en esos significados, lo cual repercute en su formación. El estudio se ha retomado, como parte de una investigación doctoral, enfocado ahora al análisis las implicaciones de la autoridad profesoral en la formación de los estudiantes y en la posible relación de los estereotipos de género en ambos procesos (autoridad y formación).
Identificar Estrategias Para Selecccionar Empleadores Expatriados
Authors: Van Kasteren Han , Tocaven Gonzalez Diana A.
Published: June 2021

Esta investigación fue desencadenada por un historial alarmante de fracaso de expatriados, es decir, en el que los expatriados no completaron sus asignaciones y regresaron a casa prematuramente. La investigación mostró que se tuvieron en cuenta muy pocos factores al reclutar y seleccionar trabajadores expatriados, factores que contribuyeron a una terminación anticipada de la asignación en el extranjero. Estos factores incluyen inteligencia cultural, preparación, falta de adaptación, barreras del idioma, nostalgia y no poder traer consigo a la familia. Las implicaciones para un éxito futuro de los expatriados serían tener en cuenta dichos factores en todas las etapas preliminares de reclutamiento y selección, antes de enviar trabajadores expatriados en asignaciones en el extranjero.
Desarrollo humano y Educación: una perspectiva de la educación enfocada al desarrollo humano
Authors: Villarreal Edna María , Zayas Pérez Federico
Published: June 2021

En este trabajo se intenta responder a la pregunta ¿educación para qué? Interesa también otra cuestión: ¿Qué educación se requiere para contribuir a satisfacer las necesidades individuales y sociales? En este sentido se explora una respuesta general: para el desarrollo humano. La primera parte enfoca hacia el papel de la educación en los indicadores de desarrollo humano de la ONU, OCDE y la Unesco, se revisan los cambios de los factores adoptados para medirlo, se señala la importancia de la educación escolar en ellos y se concluye diciendo que no obstante su reconocida relevancia, la educación, tal como es asumida, parece no responder a los retos planteados por esas demandas. En la segunda parte se propone otra perspectiva educativa, una fundamentada en la experiencia de los agentes; presente en la escuela y en todas las organizaciones sociales; que incida en lo intelectual, lo conductual, y en lo emocional y lo intuitivo; cuyos contenidos, además de los instrumentales, sean los de la vida diaria. En la tercera parte, se ejemplifica la necesidad de esa otra educación en la línea marcada por el desarrollo humano.
PENANAMAN KARAKTER DEMOKRATIS PADA SISWA MELALUI MATA PELAJARAN PENDIDIKAN KEWARGANEGARAAN (PKn) DI KELAS 2 SDN 3 AGEL KECAMATAN JANGKAR TAHUN AJARAN 2020/2021
Authors: Rofek Aenor , Azhari Desi
Published: June 2021

Penelitian ini bertujuan untuk mendeskripsikan penanaman, kendala dan solusi dalam penanaman pendidikan karakter demokratis pada siswa melalui mata pelajaran PKn di kelas 2 SDN 3 Agel Kecamatan Jangkar .Data Penelitian ini dikumpulkan melalui informan, tempat dan peristiwa, serta dokumen. Teknik pengumpulan data menggunakan metode observasi, wawancara, dokumentasi. Analisis datanya menggunakan model interaktif yang mempunyai beberapa tahapan yaitu pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Penanaman pendidikan karakter demokratis pada siswa melalui mata pelajaran Pendidikan Kewarganegaraan (PKn) di kelas 2 SDN 3 Agel yaitu: siswa berani menyatakan pendapat, menyetujui hasil keputusan bersama, memiliki rasa kebersamaan, terbuka dan menerima pendapat orang lain. Kendala dalam penanaman pendidikan karakter demokratis yaitu, a). Faktor Lingkungan, dan b). Latar belakang siswa.Solusi terhadap kendala penanaman pendidikan karakter demokratis pada siswa melalui mata pelajaran pendidikan Kewarganegaraan (PKn) di kelas 2 SDN 3 Agel diantaranya: mengintegrasikan nilai-nilai karakter pada mata pelajaran pembiasaan dan latihan
Health-related Quality of Life among Patients with Chronic Kidney Disease of Unknown Etiology (CKDu) of an agricultural Community in Kebithigollawa, Sri Lanka
Authors: Kumarasinghe Nishantha
Published: June 2021

Background: The significant increase in the burden of chronic kidney disease of unknown etiology (CKDu) of Sri Lanka has led to evaluate the factors related to physical, social and mental aspects of health-related quality of life (HRQOL) in CKDu patients.

Methods: The quality of life of 84 CKDu patients (stages 1-5) were assessed by means of the Kidney Disease Quality of Life Short-Form survey (KDQOL™-36) Version 1.3 along with biomarkers and patient demographics. The estimated glomerular filtration rate (eGFR) was calculated using the Modification of Diet in Renal Disease (MDRD) formula.

Results: KDQOL™-36 scores impaired substantially across all stages of CKDu and comparatively lower scores were present in later stages of the disease than the initial stages. The mental composite summary (MCS) scores were more impaired when compared to physical composite summary (PCS) scores during the early stage of the disease. Poor KDQOL™-36 scores were present in males than in females with a significant difference in MCS and social support scales. Biochemical parameters showed a significant correlation with the majority of KDQOL™-36 dimensions while urine albumin to creatinine ratio did not.

Conclusion: CKDu patients in any stage of the disease despite their age and gender have a significant physical and mental health burden. Thereby, early assessment of health-related quality of life will help to identify high-risk patients, and modifying these factors may provide a better active and healthy lifestyle.
Women Empowerment and their Role in Ensuring Household Food Security in Mymensingh Division of Bangladesh
Authors: Ayesha Siddiqua  , Sumaia Taskeen  , RowshanAra Nadia  , MdNahian Rahman  , Sheikh Nazrul Islam
Published: June 2021

The study was carried out to determine the womenempowerment,their role in household food security of the districts of Mymensingh division in Bangladesh. The study also emphasized to explore the influence of women empowerment status on household food security, food consumption pattern. A total of 200 women from four selected districts (Mymensingh, Sherpur,Netrokona,Jamalpur) were interviewed for the study.Most of the participants are of bangali (98%) ethnicity; and follower of Islam religion (95%). When the respondents were classified according to their occupation, most of them found to be housewives (77.3%). The study found an overall empowerment score of 42.61+13.31 (Mean+SD) in a range of 0-100. The study reveals that 41.8% of the households are severely food insecure, whereas 43.2% are moderately food insecure. It observed that, households with empowered women are more food secure than household with less empowered women (p=0.02). a positive relation was found for empowerment score with food consumption score (r=0.190). The study reveals empowerment of vulnerable women group is significantly associated with the food security and dietary consumption of the corresponding households. The study suggest further research to determine the cause-effect relationship of these factors, confounding factors that may influence the relationship and specific aspects of empowerment of women that effectively influence the food security, dietary consumption and nutrition profile at larger community
Implementation of Sharia Health Services in Medan Haji Hospitals and Jakarta Haji Hospitals
Authors: Jamaludin  , Didin Saepudin
Published: June 2021

Sharia hospital is a hospital whose management is based on maqhashid sharia. The four main characters in Islamic services are rabbaniyah, akhlaqiyah, waqi’iyah and insaniyah. Therefore, this study aims to explore the understanding and perceptions of hospital health caregivers about Islamic services and to explore a picture of Islamic health practices in Islamic hospitals based on the patient’s perspective. Methodology: The study was conducted using descriptive explorative quantitative methods. The method of collecting data using a questionnaire with 210 respondents in both hospitals, both RS Haji Jakatra and RS Haji Medan, using total sampling technique. Result: Medan Hajj Hospital and Jakarta Hajj Hospital in terms of leadership and policies are 100% in accordance with Sharia. Sharia health services by nurses 52% of the Medan Hajj Hospital and 56% of the Jakarta Hajj Hospital have implemented health services according to Sharia. The application of Sharia health services based on the patient’s perspective in the Jakarta Hajj Hospital 54% and the Medan Hajj Hospital 56% of patients / families have experienced the application of health services according to Sharia.This research can be used as a reference in improving health services in accordance with sharia principles.
Study on Relationship between Serum Iron, Transferrin and Ferritin With Proteinuria in Adult Nephrotic Syndrome Patients in Vietnam
Authors: Le Van An  , Nguyen Duc Thuan  , Vo Hoang Lam
Published: June 2021

Background: the loss of proteinuria in nephrotic syndrome (NS) patients reduces serum albumin and leads to many other changes such as dyslipidemia, disorders of blood clotting, disorders of hematopoietic components. The more and longer the loss of proteinuria occurs, the more pronounced these disorders are iron, transferrin and ferritin in serum. The objectives: Study the relationship between serum iron, transferrin and ferritin levels and proteinuria in NS patients. Subjects and Research Methods: randomized and controlled selection of 68 patients with NS in adults and without kidney failure; research according to the cross-descriptive method. Results: serum iron and transferrin levels in patients with NS are inversely correlated with proteinuria, with the following equations: y = -0.0633x + 9.531, R² = 0.0105 and y = -0.0041x + 0.725, R² = 0.0182; serum ferritin concentration positively correlated with proteinuria, with the equation y = 2.7432x + 583.65, R² = 0.0017.Conclusion: in NS serum iron and transferrin concentrations are inversely correlated with proteinuria, while serum ferritin is positively correlated with proteinuria.
Pregnancy Induced Hypertension among Pregnant Women in Dhaka City, Bangladesh
Authors: Md. Mahedi Hasan  , Mahbubur Rahman  , Nahian Rahman  , Sabrina Rahman  , Faroque Md Mohsin
Published: June 2021

This cross-sectional study has been conducted in the Bangabandhu Sheikh Mujib Medical University Gynaecology and Obstetrics Division on 72 patients who have been admitted from December 2018 to March 2019, in order to find out the percentage of pregnancy-induced high blood pressure among pregnant mothers. Of the 72 patients, 25(34.7%) have been diagnosed with pre-eclamptictoxaemia 27(37.1%) induced pregnancy and 20(27.8%) with eclampsia. Most people were 21-25 years old and their average age was 25.3 years old. Of the 72 patients, 38 were primipara (52.8 percent). 20 (27.8%) of newborns were delivered before 37 weeks, while 52 (72,2%) were delivered before 37 weeks. A cesarean section was available in 37 of all patients (51 percent). The cesarean portion in PIH & PET was higher. Of the 72 newborn patients 16(22.2%) were low in birth weight, and patients with ecclampsy were more likely to experience low birth weight. 35 of 72 patients had poor fetal results, including 1.4 percent perinatal and 33.3 percent asphyxiated infants. Only 5 (6.5 percent) had complications in maternal outcomes such as strokes, renal eclampsia. All participants in this study are women who are pregnant and receive prenatal care. WHO normally recommends patients with an antecedent of antenatal treatment less than 4 times eclampsia. In patients with eclampsia it is more common to see low birth weight, pre-term delivery and the complication for prenatal mortality
A Very Rare Case of anomalous Right Coronary Artery
Authors: Tirmale Rakesh  , Humane Josna  , JayashreeVenkatesan  , Humane Dhammdeep  , Rane Sandip  , Shah Bhaskar  , Desai Darshana
Published: June 2021

Congenital coronary anomaly is rare occurrence, and is found in very meagre population undergoing coronary angiography. The individual may not show any specific symptoms during electrocardiography and finding of anomaly is usually incidental during coronary angiography. No specific evidence based management or guideline is available for patients with coronary anomaly. We present one such case of a 65-year-old male patient presented with chest pain and had anomalous right coronary artery arising from Left coronary system.
Evaluation of Survival of Mature Second Premolar with Periapical Lesion Following Different Regenerative Treatment Protocols: A Randomized Controlled Trial
Authors: Wagih Tarek Ali  , Jealan M. El-Shafei  , Moushira Dahaba  , Alaa El Baz
Published: June 2021

Introduction: The aim of the present study was to compare the survival, periapical healing and regaining sensibility of necrotic mature second premolars with periapical lesion following treatment with two different regenerative protocols, Platelet Rich Plasma(PRP) versus Platelet Rich Fibrin(PRF) pulp regeneration. Both regenerative endodontic procedures were used for regeneration of pulp tissue in the root canal. Methods: Twenty eight patients with mature, single canalled, necrotic, and asymptomatic second premolar with radiographic evidence of periapical lesion were included. At the first visit, the tooth was anesthetized, isolated and an access cavity was performed. Mechanical preparation of root canals was performed using the standardized technique reaching apical canal preparation to K-file size #40-60. Antibiotic paste was injected in canal, and the cavity was temporarily sealed. Two weeks later, regenerative procedures were performed by applying PRP (group 1) and PRF (group 2) in root canal and pulp chamber space. Collagen plug was placed directly over platelet concentrates followed by biodentin. Survival was defined as retention of the tooth in the arch at 12 months recall. Cone beam computed tomography assessments were done through recording of bone healing of periapical lesion and density of pulp chamber space at 12 months recall. The electric pulp test was used to record at 3,6,9 and 12 months follow-up. Results: There was no statistically significant difference in survival of teeth and healing of periapical lesions between the two groups at 12 months recall. Readings of sensibility revealed statistically significant difference (P < .0001) between baseline and the 12-months follow-up,with no statistically significant difference between the two groups. Conclusions: PRP and PRF combined with revascularization protocol were successful treatment modalities for survival of mature necrotic teeth and healing of periapical lesion. Platelet concentrates protocol is successful in regaining sensibility of necrotic teeth.
Estimating the Proportion of Bone Mineral Density Loss in Patients with Normal Kidney Function among South Indian Population
Authors: Kevin Neil Aranha  , Rahul P Kotian  , Arathy Mary John
Published: June 2021

Background: Bone Mineral density (BMD) is considered as one of the golden tool to measure the bone quality in which two measurements namely T- Score and Z –score are used to report the BMD test results. Whenever there is deterioration of BMD it is associated with low skeletal mass. Creatinine is a chemical waste molecule that is generated from this muscle metabolism. Creatinine is a good marker for muscle mass. However, limited studies have been done which tell us the association between BMD loss and serum creatinine (SCr) levels.Methodology: 200 participants who were referred for CECT abdomen and pelvis were scanned using 128 slice Philips Brilliance CT. Using BMD software, four different vertebral bodies from L1-L4 were taken and ROI was placed at the central portion of the trabecular bone, two reference ROI’s, one in retro spinal muscle and one in fat tissue were also placed. To measure CT attenuation value, a ROI graphic tool was drawn at the trabecular bone. Average HU of BMD, T score and Z score values were taken from L1-L4.Statistical Analysis: The data was analysed using SSPS version 16.0. For assessment of normal BMD values, the results of measurements were averaged for age, creatinine level, T score and Z score and descriptive statistics was calculated. Spearman’s correlation coefficient was used to estimate the correlation between serum creatinine with T score and Z score.Results: T Score and SCr correlated negatively at -0.25. The correlation between Z Score and SCr was also negatively correlated at -0.187.Conclusion: It was evident from the study findings, that there is a non-association between SCr and T Score levels which showed that BMD of a person was not associated with normal kidney function. Thus, SCr levels cannot be used as a biomarker for osteoporosis or osteopenia.
Bayesian hypothesis testing and estimation under the marginalized random-effects meta-analysis model
Authors: van Aert Robbie C. M. , Mulder Joris
Published: June 2021

Meta-analysis methods are used to synthesize results of multiple studies on the same topic. The most frequently used statistical model in meta-analysis is the random-effects model containing parameters for the overall effect, between-study variance in primary study’s true effect size, and random effects for the study-specific effects. We propose Bayesian hypothesis testing and estimation methods using the marginalized random-effects meta-analysis (MAREMA) model where the study-specific true effects are regarded as nuisance parameters which are integrated out of the model. We propose using a flat prior distribution on the overall effect size in case of estimation and a proper unit information prior for the overall effect size in case of hypothesis testing. For the between-study variance (which can attain negative values under the MAREMA model), a proper uniform prior is placed on the proportion of total variance that can be attributed to between-study variability. Bayes factors are used for hypothesis testing that allow testing point and one-sided hypotheses. The proposed methodology has several attractive properties. First, the proposed MAREMA model encompasses models with a zero, negative, and positive between-study variance, which enables testing a zero between-study variance as it is not a boundary problem. Second, the methodology is suitable for default Bayesian meta-analyses as it requires no prior information about the unknown parameters. Third, the proposed Bayes factors can even be used in the extreme case when only two studies are available because Bayes factors are not based on large sample theory. We illustrate the developed methods by applying it to two meta-analyses and introduce easy-to-use software in the R package to compute the proposed Bayes factors.
First report of deinonychosaurian trackway from the Cretaceous of Guizhou, China
Authors: Qin Yanjiao , Xing Lida
Published: June 2021

The southern edge of Sichuan Basin has a long-standing folklore about the Tian Ji Stone, which actually tells of the theropod tracks. Here we describe a new Tian Ji track site named Xinglongwan in Chishui, Guizhou Province, China. Two kilometers away from the old site recorded in 2011, the later with cf. Irenesauripus isp. are morphologically different from the Xinglongwan theropod tracks. The tridactyl tracks from Xinglongwan site have been assigned to the cf. Eubrontes. Didactyl tracks in the Xinglongwan site, which are the first discovery of deinonychosaurian tracks in Guizhou Province, are assigned to the Velociraptorichnus. Both tracks were recorded in the report about ichnofauna in Jiaguan Formation, representing the diversity of theropod tracks in Sichuan Basin. The authors also briefly discuss the preservation mode and potential external-morphological changes of cf. Eubrontes and Velociraptorichnus from Xinglongwan site.
A Botanical Association Involving Elizabeth Pym, Peter Collinson, Sir Hans Sloane, and Admiral Sir Charles Wager
Authors: Vega Fernando E.
Published: June 2021

Elizabeth Pym wrote a letter in 1742 from the island of Nevis, in the Caribbean Sea, to Peter Collinson in London, describing various botanical samples she was sending him, including two coffee plants. The letter was found inside Volume II of Sir Hans Sloane’s “A Voyage to the Islands Madera …” housed at Oak Spring Garden Library in Virginia. Collinson received both volumes as gifts, with Volume I inscribed to him by Admiral Sir Charles Wager and Volume II inscribed by Sloane. The letter serves as a rare example documenting the collection of botanical specimens by a woman in the New World.
Dinosaur tracks from Tang Dynasty Grottoes area in Sichuan Province, China
Authors: Xing Lida , Lockley Martin G. , Ren Zheng , Liu Chang , Persons IV W. Scott , Peng Guangzhao , Ye Yong , Jiang Shan
Published: June 2021

In recent years the number of track sites discovered and reported from the Lower Cretaceous Jiaguan Formation, Sichuan Basin has increased steadily. Here we report on the 20th and 21st sites which are situated in unusual locations in a cave and on a steep bedding plane surface in association with Tang Dynasty grottoes. The ichnofauna is represented by two small assemblages which are both theropod-dominated. Due to sub-optimal preservation, the tracks are identified only as grallatorid and small and larger eubrontid, with Paracorpulentapus also tentatively recognized.
TÜRKÇEDE G > V DEĞİŞİMİ VE /G/ DÜŞMESİ ÜZERİNE
Authors: ERATALAY Süleyman
Published: June 2021

Türkçenin tarihsel metinleri aracılığıyla günümüze gelen, zaman içinde değişime uğramış çeşitli sözcükler birçok ses olayı barındırmaktadır. Ses olaylarının tarihî geçmişini saptamak her zaman çok kolay olmamaktadır. Bunların tespiti Türk dilbilgisinin belki de en önemli konularından biridir. Buradan hareketle denilebilir ki bu metinlerde yer alan ses olaylarının nasıl oluştuğu, günümüze dek ne şekilde ulaştığı ve hangi aşamalardan geçtiği ile ilgili sorulara cevap verilmesi ve bu değişikliklerin tarihi geçmişinin saptanması Türk dili açısından oldukça değerlidir. Türkçenin tarihsel dönemleri içerisinde söz başında, söz içinde ve söz sonlarında farklılıklar gösteren /g/ sesi şüphesiz Türk dilinin gelişme sürecinde ve hatta bugünkü şivelerin sınıflandırılması noktasında oldukça önemli roller üstlenmiştir. Bu çalışmada /g/ sesinin tarihsel süreç içerisinde nasıl ve ne şekilde /v/’ye değiştiği veya düştüğü üzerine Türkçenin tarihsel metinlerinden yola çıkılarak ve Türkologların görüşlerine de yer verilerek ortaya çıkarılmaya çalışılmıştır. Sesin /v/ye değişmesi dolaylı bir süreçken /ğ/ sesi /v/ sesine rahatlıkla dönüşmüş, /y/ sesinin /v/’ye değişmesi nadiren olmuştur. /y/ sesinin ise daha çok düşme eğiliminde olduğu görülmüştür.
«Shale revolution» in the USA and its impact on the international trade flows of oil and gas
Authors: Podoba Zoya , Lavrova Anastasiya
Published: June 2021

The paper determines the vector of influence of the “shale revolution” on international energy markets based on the analysis of volume and price dynamics of world oil and gas markets, as well as energy trade in the United States. The study contains a multilateral assessment of trends emerging from the development of shale technologies. Using regression models, the authors trace a statistically significant impact of the “shale revolution” on the price dynamics of the global energy market. Panel data analysis for the period from 2010 to 2019 shows a direct dependence between the decline in energy imports in the United States and global oil and gas prices, and the inverse dependence between the increase in exports from the United States and prices of oil (Brent) and European gas (NBP). Due to active use and continuous improvement of horizontal drilling and hydraulic fracturing techniques in the second decade of the twenty-first century the USA is decreasing its energy import dependency and transforming into a net exporter of hydrocarbons. It results in the supply disbalance on global energy markets. The ongoing changes in the US oil and gas production are leading to the transformation of geopolitical situation on world energy markets. If a decade ago, the US strategy was aimed at guaranteeing stable energy supplies, now it is the capture of markets and crowding out competitors by all possible means.
Anuario Meteorológico Cafetero 1962
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1975
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1977
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1992
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 1999
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
Anuario Meteorológico Cafetero 2008
Authors:   Centro Nacional de Investigaciones de Café
Published: June 2021

En este anuario meteorológico se publica información registrada en la red climática de la Federación Nacional de Cafeteros de Colombia operada por la Disciplina de Agroclimatología de Cenicafé.
The Lithium Abundances from the Large Sky Area Multi-object Fiber Spectroscopic Telescope Medium-resolution Survey. I. The Method
Authors: Gao Qi , Shi Jian-Rong , Yan Hong-Liang , Li Chun-Qian , Chen Tian-Yi , Zhang Jing-Hua , Liu Shuai , Yan Tai-Sheng , Xie Xiao-Jin , Ding Ming-Yi , Zhang Yong , Hou Yong-Hui
Published: June 2021

One of the purposes of taking spectra for millions of stars through the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) medium-resolution survey (MRS) is to obtain the elemental abundances, so that one can trace the origin and evolution for the element of interests. Lithium is one of such elements of great importance, which exhibits many puzzling behaviors. Investigating the lithium abundances to a uniquely large sample of stars is essential to understand its origin and evolution. In this paper, we present the lithium abundances obtained from the LAMOST MRS spectra calculated by the template-matching method. Our data set consists of 294,857 spectra that corresponds to 165,479 stars with a resolution power of Δλ/λ ∼ 7500. We compared the lithium abundances derived from our work with those using the high-resolution spectra and found a good consistence. The errors of lithium abundances are discussed. Our results suggest that the distribution of lithium abundances show two clear peaks at +2.6 and +1.0 dex, respectively. This sample is potentially important for investigating physical mechanisms occurring inside stars that alter the surface lithium abundance.
Testing Einstein’s Equivalence Principle and Its Cosmological Evolution from Quasar Gravitational Redshifts
Authors: Mediavilla E. , Jiménez-Vicente J.
Published: June 2021

We propose and apply a new test of Einstein’s equivalence principle (EEP) based on the gravitational redshift induced by the central supermassive black hole of quasars in the surrounding accretion disk. Specifically, we compare the observed gravitational redshift of the Fe III
λ
λ 2039-2113 emission line blend in quasars with the predicted values in a wide, uncharted, cosmic territory (0 ≲ z
cosm ≲ 3). For the first time we measure, with statistical uncertainties comparable or better than those of other classical methods outside the solar system, the ratio between the observed gravitational redshifts and the theoretical predictions in 10 independent cosmological redshift bins in the 1 ≲ z
cosm ≲ 3 range. The average of the measured over predicted gravitational redshifts ratio in this cosmological redshift interval is

〈

z

g

m

/

z

g

p

〉
=
1.05
±
0.06

with scatter 0.13 ± 0.05 showing no cosmological evolution of EEP within these limits. This method can benefit from larger samples of measurements with better signal-to-noise ratios, paving the way for high-precision tests (below 1%) of EEP on cosmological scales.
Influence of Irradiation-driven Winds on the Evolution of Intermediate-mass Black Hole X-ray Binaries
Authors: Han Xiao-Qin , Jiang Long , Chen Wen-Cong
Published: June 2021

In young dense clusters, an intermediate-mass black hole (IMBH) may get a companion star via exchange encounters or tidal capture and then evolve toward the IMBH X-ray binary by the Roche lobe overflow. It is generally thought that IMBH X-ray binaries are potential ultraluminous X-ray sources (ULXs); hence, their evolution is very significant. However, the irradiation-driven winds by the strong X-ray flux from the accretion disks around the IMBHs play an important role in determining the evolution of IMBH X-ray binaries and should be considered in the detailed binary evolution simulation. Employing the models with the MESA code, we focus on the influence of irradiation-driven winds on the evolution of IMBH X-ray binaries. Our simulations indicate that a high wind-driving efficiency (f = 0.01 for Z = 0.02, and f = 0.002 for Z = 0.001) substantially shortens the duration in the ULX stage of IMBH X-ray binaries with an intermediate-mass (5 M
⊙) donor star. However, this effect can be ignored for high-mass (10 M
⊙) donor stars. The irradiation effect (f = 0.01 or 0.002) markedly shrinks the initial parameter space of IMBH binaries evolving toward ULXs with high luminosity (L
X > 1040 erg s−1) and hyperluminous X-ray sources in the donor-star mass versus orbital period diagram. Furthermore, the irradiation effect results in an efficient angular momentum loss, yielding to IMBH X-ray binaries with relatively close orbits. In our simulated parameter space, about 1% of IMBH binaries would evolve toward compact X-ray sources owing to short initial orbital periods, some of which might be detected as low-frequency gravitational-wave sources.
D’une présidence à l’autre : continuités et ruptures franco-allemandes
Authors: Demesmay Claire
Published: June 2021

Un an après la fin de la présidence allemande du Conseil de l’UE, c’est à la France de prendre le relais au premier semestre 2022. Pour les gouvernements des deux États, une telle présidence doit être l’occasion de peser sur la gestion de crise et de dessiner les contours de l’Europe post-crise. De plus, ils ont l’ambition partagée d’inscrire leurs présidences respectives dans la continuité – ce qui ne les empêche pas de poser des accents différents, ni d’être en désaccord sur certains sujets. Cet article commence par décrypter les ressorts de l’étroite coopération franco-allemande durant la présidence allemande en 2020, axée autour du plan de relance européen et d’un mécanisme d’endettement commun. Dans un deuxième temps, il s’attache aux intérêts communs de la France et de l’Allemagne, notamment en matière de transition numérique et énergétique, qui alimente la continuité entre leurs deux présidences. Pour finir, il met en lumière les divergences de vues et les désaccords structurels entre les partenaires qui pourraient à nouveau faire débat, liés en particulier à la question budgétaire et à la politique de défense.
Naître dans les Andes. Circulation des savoirs obstétricaux et colonialité du savoir dans le Pérou du XIX e siècle
Authors: Quiroz Lissell
Published: June 2021

L’article étudie la formation de l’obstétrique dans le Pérou du xix e  siècle. Cette spécialité médicale tire ses origines de l’importation des savoirs obstétricaux européens et de leur adaptation à la réalité péruvienne. Ce nouveau modèle est basé sur la colonialité du savoir, qui condamne et poursuit les connaissances tout comme les pratiques sur la naissance préexistantes (autochtones notamment) et impose un autre régime, considéré comme moderne et civilisé, celui de la médecine occidentale.
L’action sanitaire extérieure de la France, 1949-1954. La nostalgie de l’influence, le pragmatisme multilatéral et les Europe(s) de la santé
Authors: Paillette Céline
Published: June 2021

Le 24 septembre 1952, Paul Ribeyre, ministre de la Santé publique et de la population, lança un projet de Communauté européenne de la Santé, rapidement dénommé Pool blanc. Cette incursion du ministre de la Santé publique dans le champ des relations internationales interroge les processus de coordination entre les acteurs multiples d’une action sanitaire extérieure française, à l’œuvre depuis la fin des années 1940 entre nouveaux multilatéralismes et moments européens.
Usages du droit et espaces de pouvoir transnationaux
Authors: Kévonian Dzovinar
Published: June 2021

En associant parcours, discours et pratiques, cette contribution rappelle l’historicité de la pratique pétitionnaire entre essor du droit international et gestion à distance des mobilisations transnationales. Elle analyse les langages et usages des droits en donnant la parole aux pétitionnaires victimes d’un crime de masse, dans leurs modalités d’appropriation de la procédure après la signature du traité de Lausanne de 1923 qui fonde l’exclusion des rescapés arméniens du génocide de 1915-1916 par la nouvelle République de Turquie. Elle confronte enfin ces usages aux profils et pratiques des personnels de la section des minorités (concurrences élitaires, travail bureaucratique et ressources).
Beware of Pity: The League of Nations’ Treatment of Prostitution
Authors: Rodríguez García Magaly
Published: June 2021

Cet article étudie le soutien de la Société des nations aux idées eugénistes. Les campagnes anti-prostitution menées par la Société des nations peuvent être entendues comme une expérience d’internationalisme, car l’organisation s’est attaquée à une question qui était jusqu’alors considérée comme relevant de la sphère nationale. Elle a mis sur pied un réseau d’experts qui ont diffusé diverses idées autour de la « déficience mentale » des prostituées. Ce faisant, la Société des nations ne s’est pas démarquée d’une époque où les interprétations biologiques du crime et de la déviance étaient courantes. Ce qui est plus surprenant, c’est qu’elle soit parvenue à dissimuler son intérêt pour les théories eugénistes au regard de la critique contemporaine comme à celui des chercheurs d’aujourd’hui.