bluuebunny/crossref_metadata_2025_split huggingface dataset:
Environmental Revitalization of the River Basins of the Guapiaçu and Macacu Rivers to Increase Water Security in the Eastern Region of Guanabara Bay, Rio de Janeiro-RJ
Authors: Ottoni Adacto Benedicto , Alves Allexser Pacheco Bernacchi , Souza Cynthia da Silva , Ohnuma Júnior Alfredo Akira 
Published: November 2023

Purpose: Evaluate the implementation of interventions with environmental sustainability in the Guapiaçu and Macacu river basins, in Rio de Janeiro, based on the concept of nature-based solutions, for the regulation of river flows. Theoretical reference: Principles that assess the water retention of rainwater through infiltration in slopes and plains of valley bottoms in the basin, in order to mitigate volumes of surface runoff, and increase artificial recharge of the aquifer. Method: The methodology presents data on the characterization of the Guapiaçu and Macacu basins, as well as information regarding the collection of hydrological data, specifically related to streamflow measurement in both basins. Results and conclusion: The results indicate periods of flow rates above average, corresponding to annual river discharges, with flood flows reaching over 120 m3/s in the Guapiaçu River and 220 m3/s in the Macacu River, with high availability of rainfall runoff in the region. Research implications: Proposed interventions for environmental sustainability in the Guapiaçu and Macacu river basins, with a forecast of increasing the minimum flow rates of the Guapiaçu and Macacu rivers to meet the expansion of water supply for the Baía de Guanabara region. Originality/value: The proposal for revitalizing basins through unconventional and nature-based solutions has less impact and presents originality, as it ensures the sustainability of water resources with water security in water supply associated with lower cost.
Evaluación de conocimientos y prácticas escolares que han recibido promoción en salud bucodental, Cali
Authors: Pérez Yolanda , Moyano Martha , Arias Arnulfo 
Published: November 2023

En el Centro de Salud Diego Lalinde Zawadski (DLZ), ubicado en la zona oriental del municipio de Santiago de Cali, surgió la necesidad de evaluar a los escolares de su área de influencia que recibieron acciones de promoción en salud bucodental. Se planteó un estudio descriptivo cuyo objetivo fue evaluar los conocimientos, las prácticas en salud bucodental, el estado de higiene oral, el estado de dentición y de las necesidades de tratamiento de los alumnos de las sedes educativas Santísima Trinidad y Nuestra Señora de Fátima, de las cuales la primera recibió las acciones de promoción de manera continua y permanente y la segunda las recibió de manera parcial o esporádica.
Se seleccionaron al azar 124 escolares de ambas escuelas que cursaban de segundo a quinto grado cuyas edades fluctuaron entre 7 y 12 años, quienes fueron autorizados o por ambos padres de familia, o por las madres de familia o por sus acudientes, mediante un consentimiento informado y se les aplicó una encuesta previamente probada. En los resultados de ambas sedes educativas no se encontraron diferencias significativas respecto a conocimientos en salud bucodental.
Comparando las sedes, en la Santísima Trinidad hubo una mayor proporción de escolares que se cepillaban 4 veces (21.3%) y menor proporción de escolares dentro de la categoría mala (6.6%) de IPC que en Nuestra Señora de Fátima. Los componentes del índice ceo-d en la Santísima Trinidad mostraron una ligera tendencia a presentar menor promedio de dientes cariados (1.8) que en la otra institución (2.0). El índice CPO-D en La Santísima Trinidad (2.7) fue ligeramente menor que en Nuestra Señora de Fátima (2.8). En la escuela Santísima Trinidad (62.2%) hubo mayor proporción de dientes permanentes sin necesidad de tratamiento con respecto a Nuestra Señora de Fátima (56.4%). Aunque no fue de manera estadísticamente significativa los escolares de la Santísima Trinidad, intervenida constantemente por la campaña de promoción del Centro de Salud Diego Lalinde, muestran menor proporción de IPC de categoría mala y promedio de dientes cariados que la institución poco intervenida, por lo que se recomienda seguir impartiendo las campañas de manera frecuente con énfasis en el cepillado dental.
La amalgama dental: el material, interacciones con el ambiente oral y contribución a la carga corporal de mercurio
Authors: Celis Marietta , Contreras Adolfo , Vallejo Carmén Elisa 
Published: November 2023

La amalgama dental es el material restaurador más utilizado en la clìnica que en la actualidad desata inmensa controversia a nivel mundial. Numerosos estudios concluyen de manera contradictoria sobre las bondades o los posibles efectos negativos cuanda se utiliza como restaurador en cavidades de dientes posteriores. El propósito de este articulo es realizar una revisión sobre el tema, enfatizando en tres aspectos básicos:1. La fisioquìmica de la amolgama dental.2. Las interacciones del material con el medio oral.3. La contribución de la amalgama dental a la carga corporal de mercurio, para ayudar a despejar las dudas que asaltan concretamente a la profesión odontológica y a la comunidad en relación con la situación de mercurio y la salud humana. Es necesario realizar investigaciones más explicitas sobre el tema, ya que en el momento se conoce que la amolgama puede contribuir a incrementar los niveles de mercurio en una persona, pero no se ha aclarado totalmentecómo.
Comportamiento fisiológico del cantiliver en implantología oral
Authors: Olave Bustamante Gilberto , Rueda García Adriana 
Published: November 2023

En el presente artículo se realiza la revisión y el análisis de un esquema de rehabilitación mediante la utilización del principio cantilever o puente voladizo, y su comportamiento fisiológico cuando se aplica sobre dientes naturales o sobre implantes de oseointegración.
Desde que se publicaron los primeros trabajos realizados por el grupo de los Suecos el principal y mayor esquema de rehabilitación utilizado fue el cantilever sobre un número plural de implantes colocados en la zona anterior del maxilar o la mandíbula.
Son indiscutibles las tasas de éxito que se lograron con este principio, desafiando muchas veces las reglas aplicadas en las prótesis fijas convencionales. Se definen entonces varios conceptos de áreas, fuerzas y eficiencia y rendimiento masticatorio para poder entender de forma más racional y lógica lo que ocurre en este tipo de rehabilitaciones. Se sintetiza el resultado de las diversas publicaciones que existen al respecto.
Preliminary Debris Risk Analysis for Mega-Constellation Architectures After Orbit-Raising Fragmentation Event
Authors: Canoy Joseph C. , Bettinger Robert A. 
Published: November 2023

This paper presents a theoretical examination of the potential debris conjunction dangers faced by mega-constellations in both low Earth orbit (LEO) and medium Earth orbit (MEO). The analysis focuses on the risks posed by debris fields created by breakups occurring during an orbit-raising maneuver for vehicle replacement and/or capability reconstitution, using current telecommunications mega-constellations, such as Starlink and OneWeb, as examples. The mega-constellation designs consist of 750 and 150 satellites arranged using the Walker-Delta design for the LEO and MEO cases, respectively. The research employs physics-based orbital propagation and Monte Carlo simulations to evaluate the potential consequences of a single satellite breakup during orbit raising. The results of the simulations are used to calculate the probability of catastrophic collision and compare the debris risk between the LEO and MEO mega-constellations, with a bimodality analysis conducted for the MEO constellation. Monte Carlo analysis indicates that the LEO mega-constellation features the highest percentage of potential catastrophic collisions between debris fragments and the mega-constellation. Specifically, satellite breakup events starting within an altitude range of 100–199 km below the LEO mega-constellation, or approximately at the midpoint of a Hohmann transfer from a 300-km parking orbit, pose the greatest risk to the constellation.
Knowledge About The Interrelationship of Oral and Systemic Health Among Postgraduate Dental Students and General Dental Practitioners of West Tamil Nadu – A Questionnaire Study
Authors: Mani Sudhaa , Pazhani Ambiga , Swaralaya Shree B. , Sahuthullah Yasmeen Ahamed , GS Sivaraman , Susairaj Babu 
Published: November 2023

Objectives:Oral health status is an integral component of general health. Many studies have shown that the oral cavity exhibits manifestations of many systemic diseases and acts as a predictor of oral health. The aim of the study is to assess the knowledge about the interrelationship of oral and systemic health among postgraduate dental students and general dental practitioners of west Tamil Nadu.Material and Methods:Data was collected using a self-administered pilot tested questionnaire. Informed consent was obtained from all the participants and demographic details were collected for the participants of study. The questionnaire was sent through email. Study data obtained were entered into Statistical Package for the Social Sciences (SPSS) Version 25. Comparison between the variables was done using chi-square test. Level of significance was set at 5% (p < 0.05).Results:The results were tabulated and comparison of knowledge about oral and systemic diseases among general practitioners and postgraduates were analyzed using nonparametric – Mann-Whitney test. General practitioners had comparatively better knowledge on inter-relationship of oral and systemic health than postgraduate students. 44.17% of respondents in general dental practice knew that a relationship exists between oral and general health, but application of this knowledge in treating medically complex patients was limited.Conclusion:Greater emphasis should be placed on this association by interfiled (medical and dental) training from the undergraduate level which can be rectified by modifying the academic regulations. Continuing education programs should be frequently conducted on educating dental, medical and other healthcare professionals on the robust and latest evidence of the oral-systemic link.
Range management for efficient reproduction
Authors: Olson K. C. 
Published: November 2023

Abstract
The purpose of this article is to discuss the relationship between range management practices and reproductive performance of beef cattle. The primary axis of this relationship is via the influence of range management on the nutritional status of the cow and the concomitant effect of nutritional status on reproductive status. Abundant research on beef cattle in confinement has established the relationship of nutritional status on reproductive status. Research evaluating beef cow nutritional responses to range management is more limited, and evaluations of reproductive responses to range management are even fewer. Grazing management practices that influence beef cow performance include stocking rate, grazing distribution, and grazing systems. Stocking rate has the greatest influence, with heavy stocking rates diminishing a cow's ability to select and consume a highly nutritious diet. This limitation on nutrient intake decreases the cow's reproductive performance. Range management to improve grazing distribution effectively increases forage supply by enticing cows to consume underutilized forage, thereby altering the stocking rate relationship in favor of supporting more cows or higher nutrient intake by individual cows. Grazing systems that involve multiple pastures so grazing and rest can be scheduled among the pastures have variable effects on cattle performance, but they decrease performance more often than not compared with continuous grazing. The limitation of the pasture area to which cattle have access in a grazing system effectively decreases the forage supply, and can thereby decrease diet selection and nutrient intake. Alternative forages, especially complementary forages that grow in the early spring, can dramatically improve cow nutritional status during the critical pre-and postpartum periods of the annual beef cow production cycle. Supplementation, particularly the use of protein with low-quality forages, can augment beef cow reproductive status, as long as it is managed in concert with proper grazing management. In conclusion, various range management practices can have positive or negative effects on beef cow nutrition and reproduction. Range management needs to be carefully planned and implemented to ensure that it contributes to efficient reproduction.
Gastric ulcers in horses
Authors: Andrews F. M. , Buchanan B. R. , Elliot S. B. , Clariday N. A. , Edwards L. H. 
Published: November 2023

AbstractGastric ulcers are common in horses resulting in decreased performance and economic loss to the industry. Ulcers usually occur in the nonglandular mucosa of the stomach, which lacks adequate protection against the harmful effect of stomach acids. Also, performance horses are fed high hydrolyzable carbohydrate (grain) diets, which lower stomach pH and serve as substrates for resident fermentative bacteria, such as Lactobacillus spp. By-products of these bacteria include organic acids (VFA and lactic acid) that cause injury to the mucosa. This manuscript reviews the anatomy and barrier function of the stomach, and the causes and risk factors for development of gastric ulcers in horses.
The follicular phase in pigs: Follicle populations, circulating hormones, follicle factors and oocytes,
Authors: Guthrie H. D. 
Published: November 2023

Abstract
The predominant pattern of follicle development in pigs is characterized by continuous activation, slow growth to the antral stage, and rapid growth to 4 to 5 mm followed by atresia. The only time that this pattern is broken is when a small portion of the follicle population is selected for ovulation. The mechanisms that regulate the selection of ovulatory follicles are not well understood. However, the ovulatory cohort shifts from FSH to LH dependence at the expense of the nonovulatory follicles as indicated by the following: 1) decreased secretion of FSH, and 2) decreased expression of the FSH receptor and increased expression of the LH receptor. The selection of ovulatory follicles may be dependent on the interaction of members of the intraovarian IGF system to maintain a high level of IGF-I bioavailability. The maintenance of a proliferating population of antral follicles is critically dependent on circulating FSH. A naturally or experimentally induced increase in circulating FSH levels results in an increase in antral follicles; conversely, decreased secretion of FSH is followed by a decrease in the number and in health status of antral follicles. Gonadotropin treatment with eCG or PG600 triggers selection of ovulatory follicles, and although these treatments do not increase litter size, they are beneficial for treatment of anestrus and, in conjunction with hCG or GnRH analogs, provide better control of the time of ovulation. The use of porcine FSH has not increased ovulation rate or improved oocyte developmental competence. To improve reproductive efficiency in the future, research should be directed toward obtaining more knowledge about genetic and physiological regulation of ovulatory follicle selection and the effect of follicle development on oocyte developmental competence.
Diseño y optimización curricular desde el enfoque descriptivo basado en mapas mentales y redes de conocimiento
Authors: Díaz Álvarez Cristian Julián , Mojica Sánchez Ángela , Rojas Gutiérrez Saul Eduardo 
Published: November 2023

El diseño y evaluación de un plan de estudios son actividades prioritarias para la habilitación y acreditación de programas. Al igual que en una cinta de Moebius, el currículo es el punto de partida, y a la vez el beneficiario, de las funciones misionales de docencia, investigación, extensión e internacionalización. Sin embargo, en la mayoría de los casos éste no se construye y desarrolla a partir de la relación imbricada de temas, conceptos y resultados de aprendizaje; buscando una superestructura que asegure tanto lo multidimensional, como el pensamiento crítico y la antinomia. En este contexto, la experiencia de aplicar un método heterodoxo basado en la complejidad y diagramado en mapas mentales y redes de conocimiento, permite obtener propuestas curriculares compactas, robustas y muy bien estructuradas. Método que permitió un 100% de efectividad en once procesos de renovación de registro calificado, dos acreditaciones y en cinco solicitudes de registro en distintas universidades del país.
ИССЛЕДОВАНИЕ СХЕМЫ УДВОЕНИЯ ЧАСТОТЫ СЛЕДОВАНИЯ СВЕРХКОРОТКИХ СВЕТОВЫХ ИМПУЛЬСОВ ДЛЯ ФОРМИРОВАНИЯ ПОСЛЕДОВАТЕЛЬНОСТИ ВЫБОРКИ АНАЛОГО-ЦИФРОВЫХ ФОТОННЫХ СИСТЕМ
Authors: Злоказов Е. Ю. , Небавский В. А. , Стариков Р. С. 
Published: November 2023

Рассмотрена и экспериментально испытанасистемаудвоения частоты следования коротких оптических импульсов лазера в режиме синхронизации мод, предназначенная для формирования последовательности выборки в аналого-цифровых фотонных системах. Основной идеей умножения частоты следования оптических импульсов является разделение исходной импульсной последовательности, а затем относительная временная задержка разделенных сигналов и их сложение. Разделение и сложение могут осуществляется разветвителями либо демультисплексорами. Представлено аналитическое описание зависимости временной задержки в плечах на сигнал и спектр, полученной в ходе фотодектирования сформированной последовательности. Величина задержки между импульсами регулируется таким образом, чтобы минимизировать нежелательные спектральные составляющие на кратных частоте повторений лазера частотах в СВЧ-спектре фотодетектированной последовательности; в работе минимизировались члены нечетного порядка. Показано, что на максимальную точность предложенного метода также влияет различие мощности складываемых импульсов. В ходе сопоставления полученных в экспериментах данных с результатами численного моделирования удалось достичь точности рассогласования во времени между каналами не более 100 фемтосекунд, а по мощности – не более 1 %. Апертурная ошибка, вычисленная по результатам измерения фазовых шумов, составила 10.2 фемтосекунды.
Forecasting the Impact of the Environmental and Energy Factor to Improve Urban Sustainability by Using (SEM)
Authors: Al-Abayechi Yasameen F. , Al-Khafaji Ahmed S. 
Published: November 2023

The environmental and energy factor is one of the important factors that most studies have focused on in the field of sustainability, especially in light of the increasing population growth rates and the accompanying increase in consumption and environmental pollution rates. This paper focuses on presenting several different theories and models of urban sustainability for the purpose of identifying the overall factors that constitute it. Structural Equations Modeling (SEM) allows knowledge of the relationships and the strength of influence between these factors. The paper focuses on studying the environmental and energy factors and their impact on other sustainability factors. As most researchers resort to descriptive methods and measures in discussing the subject. The paper aims to adopt models and quantitative measures to determine the factors and indicators of urban sustainability and to clarify the importance, variation, and interdependence between these factors and indicators, adopting the hypothesis that structural equation modeling provides highly reliable tools through which sustainability factors, their relationships, and the mutual influence between them can be measured using the analysis of moment structures (AMOS) program. The result shows that the environmental and energy factors are highly related to the urban design factor (6.0). Doi: 10.28991/CEJ-2023-09-10-013 Full Text: PDF
Ventilation Performance of Air Duct in Double Loaded Corridor Building: A Case Study
Authors: Ulum Muhammad S. , Arminda Wenny , Kamaruddin Maqbul , Satria Widi Dwi 
Published: November 2023

Buildings with double-loaded corridor types are often found in Indonesia and generally function as offices or lecture rooms. This type of building is popular because of its efficient circulation path to accommodate the movement of occupants. However, a wall separating the room from the corridor makes it impossible to put windows to implement a cross-ventilation system due to acoustic problems. Hence, to achieve indoor thermal comfort, this type of building relies on using an air conditioning (AC) system. However, with the WHO's call to reduce the use of AC during the COVID-19 pandemic, it is necessary to evaluate cross-ventilation in double-loaded corridor buildings to meet comfort standards while still preventing acoustic problems due to noise from corridors and other spaces. The study proposes a new natural ventilation system using air ducts placed above the corridor ceiling to create cross-ventilation in lecture buildings. The E-ITERA building was chosen as a case study in this research. The building has a glass facade with several small windows that can be opened outside. The corridor of this building is designed with openings at both ends, allowing for direct connection to the outside air. The walls facing the passage have a single door and four small ventilations on the aisle's upper side. Simulations were carried out in two classrooms on the 3rd floor using CFD (Computational Fluid Dynamics) software. Experiments were carried out to change the size of the air duct and the size of the ventilation on the wall that leads to the corridor. The results showed that the air duct was able to create cross-ventilation. Ventilation performance is improved when the WWR air duct is the same as the WWR window. The highest air velocity in the centre of the room is 0.6 m/s. Doi: 10.28991/CEJ-2023-09-10-06 Full Text: PDF