bluuebunny/crossref_metadata_2025_split huggingface dataset:
Caracterización de la pérdida dental en pacientes atendidos en una clínica de docencia servicio en la ciudad de Cali – Colombia
Authors: Urbano Muñoz Lina Fernanda , Cárdenas Pulido Kevin Andrés , Hernández Lasso Diana Marcela , Orozco Domínguez Kelly Jhohana , León Jhoan , Escudero Mónica , Amaya Sandra 
Published: November 2024

Introducción: La pérdida dental parcial o total es una condición común en la población global, que puede tener un impacto en la oclusión, la nutrición y la calidad de vida. La pérdida de dientes sigue siendo una realidad a pesar de los avances en los tratamientos odontológicos. Objetivo: Caracterizar la pérdida dental de los pacientes que asisten a las clínicas de docencia-servicio en la Ciudad de Cali.
Métodos y materiales: Estudio observacional, descriptivo de corte transversal. Se incluyó 105 pacientes durante un periodo de 6 meses que asistieron a los diferentes servicios de odontología en las clínicas de docencia servicio. Se registraron las características sociodemográficas, la presencia de enfermedades sistémicas, la causa de perdida dental, el tipo de edentulismo y si presentaba edentulismo previo. Se definió el caso de pérdida dental en individuos con 1 o más dientes ausentes. Se realizo un análisis descriptivo de las distribuciones de frecuencia y medidas de tendencia central y dispersión para las variables cualitativas y cuantitativas respectivamente, análisis bivariado con tablas de contingencia y test estadístico de asociación. Todo en el software estadístico R estudio.
Resultados: Se registró una pérdida dental de 273 dientes en 105 pacientes, con un promedio de edad de 47 años (desviación estándar ± 18,0) entre 16 a 80 años. Fue más frecuente en mujeres 18 (57%) que en hombres (43%), el 46% reporto alguna enfermedad sistémica. La principal causa de la pérdida dental fue caries dental (23.8%) y periodontitis (18,1%%). El tercer molar fue el más extraído (30,7%) y el canino (12,4%). El menos frecuente fue el segundo premolar (7,3%). Según el ciclo vital en la adolescencia y la juventud(12,3%) la mayor causa fue el diente incluido, en la adultez la caries (14,28%) y en la vejez fue la periodontitis(9,52%)
Conclusión: La pérdida dental en una clínica de docencia servicio fue más frecuente en mujeres, se presentó a cualquier edad y en cualquier diente en pacientes mayores de edad y las principales causas fueron caries y periodontitis. Dado que se presentó una frecuencia alta de perdida dental, es importante identificar los factores asociados para que desde la academia, se puedan hacer más tratamientos preventivos y no invasivos, contribuyendo con la sobrevida de los dientes a largo plazo en los pacientes.
A similar feature point matching method for aerial electric power tower images based on a one-ring neighborhood of vertices
Authors: Chen Keyu , Guo Jufu , Wang Weijun , Lei Bo , Huang Hui , Luo Lijing 
Published: November 2024

Due to the susceptibility of images to various factors such as scale changes, imaging conditions, and image noise, traditional feature point matching methods are difficult to achieve ideal matching accuracy, leading to many challenges in the automatic analysis and processing of power tower images. To improve the matching accuracy of similar feature points in aerial images of electric power tower, this study proposes a method for matching similar feature points in aerial images of electric power tower based on a vertex ring neighborhood, addressing the problem of large matching errors caused by factors such as scale and imaging conditions. This method first adopts the feature point extraction technique of electric power tower image based on decomposition and filtering, and constructs the Laplacian pyramid of the original image. Subsequently, filter banks are used to decompose the pyramid image in different directions, extract local extremum points as candidate feature point sets, and merge them to obtain the final feature point set. On this basis, taking into account the spatial relationships and geometric characteristics around the feature points, a texture mapping algorithm based on vertex ring neighborhood and patch classification is applied to construct a vertex ring neighborhood structure and extract geometrically representative electric power tower features. Finally, by using a texture feature point matching method based on the principle of similarity, the similarity between the real-time image and the reference image features is calculated for matching, and combined with the Babbitt coefficient to remove mismatched feature points, accurate matching of similar feature points in aerial electric power tower images is achieved. The experimental results show that this method has a mean square error of less than 0.1 Pixel in matching similar texture feature points of aerial power tower images under various working conditions, significantly improving the matching accuracy and providing an effective tool for automatic analysis and processing of power tower images.
ПРОСТРАНСТВЕННО-ВРЕМЕННЫЕ ЗАКОНОМЕРНОСТИ АКУСТИЧЕСКОГО ОТКЛИКА МОДЕЛЬНОГО ПРОТЯЖЕННОГО РАЗЛОМА НА ФЛЮИДНЫЕ И ЭЛЕКТРИЧЕСКИЕ ВОЗДЕЙСТВИЯ
Authors: И. А. Пантелеев , В. А. Новиков , В. И. Окунев 
Published: November 2024

В статье приведены результаты экспериментов по воспроизведению процесса прерывистого скольжения по модельному разлому и инициирования подвижки борта разлома флюидными и электрическими воздействиями. Отличительной особенностью использованной экспериментальной установки является протяженный подвижный блок, позволяющий существенно увеличить площадь межблочного контакта, заполненного сухим мелкозернистым песком. Это позволило исследовать пространственную картину развития зон активного деформирования контактной зоны посредством решения задачи локации источников акустической эмиссии. Отдельное внимание уделено изучению отклика контактной зоны на инжекцию в неё воды и прямое воздействие электрического тока. В результате проведенных экспериментальных исследований определены пространственно-временные закономерности отклика модельного разлома на увеличение сдвиговой нагрузки и флюидные и электрические воздействия. Показано, что воздействие электрического тока вызывает рост акустико-эмиссионной активности во всей области между электродами за исключением области активизации эмиссии на этапе инжекции воды. Установлено, что электрическое воздействие может приводить к инициированию динамической подвижки с активизацией пространственных областей, проявленных на предыдущих этапах воздействия.
This paper presents the results of experiments to reproduce the stick-slip process along a model fault and to induce fault edge movement by fluid and electrical effects. A special feature of the experimental setup used is an extended movable block, which allows to significantly increase the area of the interblock contact filled with dry fine-grained sand. This makes it possible to study the spatial pattern of the development of active deformation zones of the contact zone by solving the problem of locating acoustic emission sources. Particular attention has been paid to the study of the response of the contact zone to the injection of water into it and to the direct application of electric current. As a result of the experimental studies, spatiotemporal patterns of the response of the model fault to an increase in shear load and fluid and electrical effects have been determined. It is shown that the effect of electric current causes an increase in acoustic emission activity throughout the area between the electrodes, except for the emission activation area at the water injection stage. It was found that the electrical action can lead to the initiation of dynamic motion with the activation of spatial areas manifested in previous action stages.
РАЗВИТИЕ КОНЦЕПЦИИ БЛОЧНО-ИЕРАРХИЧЕСКОГО СТРОЕНИЯ ЗЕМНОЙ КОРЫ В РАБОТАХ ИДГ РАН
Authors: Г. Г. Кочарян 
Published: November 2024

В предлагаемой статье сделана попытка проследить эволюцию некоторых базовых положений модели геофизической среды М.А. Садовского в работах сотрудников ИДГ РАН. Богатый экспериментальный материал, накопленный на протяжении многих лет участия в испытаниях ядерного оружия, послужил фундаментом для развития динамики деформирования массивов горных пород на разном иерархическом уровне. Показано, что многие современные подходы и результаты последних лет в том или ином виде были предсказаны в работах М.А. Садовского. Продемонстрирована ключевая роль разломных зон в эволюции деформационных процессов в земной коре. Развитие нового научного направления Геомеханика разломов открывает новые возможности в решении фундаментальных и прикладных задач физики твердой Земли.
The article attempts to trace the evolution of some basic provisions of the model of the geophysical medium by M.A. Sadovsky in the works of the employees of the IDG RAS. Rich experimental material accumulated over many years of participating in nuclear weapons tests served as a foundation for developing the dynamics of rock mass deformation at different hierarchicallevels. It is shown that many modern approaches and current results anyway were predicted in the works of M.A. Sadovsky. The key role of fault zones in the evolution of deformation processes in the Earthʼs crust is demonstrated. The development of a new scientific school «Geomechanics of Faults» opens up new possibilities in solving fundamental and applied problems in the physics of the solid Earth.
РАЗВИТИЕ ЭКСПЕРИМЕНТАЛЬНЫХ ИССЛЕДОВАНИЙ РАЗРУШЕНИЯ ГОРНЫХ ПОРОД В ИФЗ РАН С ПЕРВОЙ ПОЛОВИНЫ 1970-Х ГОДОВ
Authors: А. В. Пономарев , П. А. Казначеев 
Published: November 2024

В статье представлен краткий исторический обзор лабораторных экспериментальных исследований, начатых в ИФЗ РАН в первой половине 1970-х годов по инициативе академика М.А. Садовского и воспроизводящих на моделях отдельные аспекты разрушения горных пород при сейсмическом процессе. Отмечены предпосылки и основные направления исследований. Приведены данные по отдельным экспериментам, основное внимание сосредоточено на методике. Даны основные сведения о крупномасштабном эксперименте по деформированию и разрушению блоков горных пород метрового размера на 50-тонном прессе. Эксперимент проводился в 1980-х годах под методическим и организационным руководством ИФЗ РАН (Г.А. Соболев) с привлечением широкого круга смежных организаций и специалистов. Описаны методика и результаты экспериментов на модели сейсмической бреши, экспериментов на слайдер-моделях разломов с триггерным воздействием и экспериментов на малых образцах с заданием сложного напряженного состояния. Результаты экспериментов поддержали основные идеи модели лавинно-неустойчивого трещинообразования, предложенной в ИФЗ РАН в 1971 г.
The paper presents a brief historical overview of laboratory experimental studies initiated at the Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences in the first half of the 1970s on the initiative of academician M.A. Sadovsky and reproduced certain aspects of rock failure during the seismic process using models. The background and main directions of research are noted. Data on individual experiments are presented, the main attention is focused on the methodology. The basic information about a large-scale experiment on deformation and destruction of blocks of rocks of meter size on a 50-ton press is given. The experiment was conducted in the 1980s under the methodological and organizational guidance of the IPE RAS (Sobolev G.A.) with the involvement of a wide range of related organizations and specialists. The methodology and results of experiments on the seismic gap model, experiments on slider models of faults with trigger initiation and experiments on small samples with a complex stress state are described. The experimental results supported the main ideas of the avalanche-unstable fracturing formation model proposed at the IPE RAS in 1971.
EFFECT OF PUBLIC PRIVATE PARTNERSHIP FINANCING STRUCTURE ON COMPLETION OF GEOTHERMAL ENERGY DEVELOPMENT PROJECTS IN KENYA
Authors: Olando Sitati , Mwenda Mary Nyawira , Kikwatha Reuben Wambua , Rambo Charles Mallans 
Published: November 2024

Objective: To determine the effect of Public Private Partnership (PPP) financing structure on the completion of geothermal energy development projects in Kenya.

Theoretical Framework: The study used agency and public choice theories to analyze the dynamics between PPP financing structure and completion of geothermal energy development projects.

Methodology: A cross-sectional census survey in Kenya surveyed 48 geothermal energy development projects, collecting quantitative data through structured questionnaires and qualitative insights from industry regulators, financiers, and practitioners. A combination of descriptive, correlation, and linear regression statistical models were applied. Multiple diagnostics tests and data triangulation were performed.

Results and Discussion: The study results provide strong statistical evidence depicting a positive relationship between PPP financing structure and the completion of geothermal energy development projects in Kenya. The findings suggest that as the level of PPP involvement increases, so does the likelihood of faster project completion. The study also reveals that a balanced PPP financing structure has a substantial effect on the completion of geothermal energy development projects. The analysis demonstrates that a hybrid PPP financing structure comprising recommended proportions of private and government equity, commercial and concessional loans, hybrid finance, and grants significantly affects project completion outcomes.

Research Implications: The study emphasizes the significance of a structured PPP financing model, comprising private and government equity, concessional and commercial loans, hybrid finance, and mixed grants, in mitigating inherent PPP risks for enhanced project completion outcomes. In addition, effective government support measures and robust delivery capability of developers jointly influence the two variables in a significant manner.

Originality/Value: This study uniquely analyzes the influence of PPP financing structure on the completion of geothermal energy development projects in Kenya, integrating quantitative and qualitative data for a comprehensive perspective, thus offering essential insights for stakeholders.
STRATEGIC DECISIONS FOR BUSINESS SUSTAINABILITY: EVIDENCE BASED ON THE FIVE C ANALYSIS AND PEST ANALYSIS
Authors: Oyasor Emmanuel Imuede , Gbadebo Adedeji Daniel 
Published: November 2024

Objective: This article develops and analyses the framework in promoting sustainable job satisfaction based on experience of a Canadian firm, the National Best Financial Network (NBFN).

Method: The paper applies the Five C’s (Company, Customers, Competitors, Collaborator and Climate/Context) and the PEST (political, economic, socio-cultural and technological) analysis to evaluate the situations for the strategic decision and attainment of the objectives.

Result and Discussion: The paper reveals that the industry remains an attractive one due to the ability to compete moderately with a similar product and the low switching costs of buyers.

Implications: The implication is that growth potential and demand for the product/service is expected to increase, and the threat of substitute products/services are weak. While threats from new entrants is low, existing companies have the advantage of existing market share and can take active efforts to retain it.

Originality/Value: The note provides information that identifies the issues affecting the growth and development of the firm, and the financial industry in Canada.

Recommendations: We recommend regulatory policies that allow for ease of entry along with the ability to quickly assimilate into the market with existing technology.
Laparoscopic access is the modern standard for extended liver resection
Authors: Usenko O. Y. , Fedorov D. O. , Hrynenko O. V , Ostapyshen O. M , Pidopryhora O. O. 
Published: November 2024

Objective. To evaluate the safety and early results of laparoscopic extended liver resection in case of focal liver pathology by retrospective comparison with the relevant parameters of a similar open intervention.
Materials and methods. The study involved 162 patients who were divided into two groups: Group 1 – 50 patients who underwent laparoscopic extended liver resection, and Group 2 – 112 patients who underwent open extended liver resection. The groups were compared by age structure, sex, body mass index, type of pathology (benign/malignant), as well as by characteristics of surgical intervention and postoperative period. Statistical analysis included a t–test for independent samples, Pearson's chi–square test, and other appropriate methods with the calculation of the confidence level p (parametric criterion). The difference in indicators was considered statistically significant at p < 0.05.
Results. Laparoscopic osshire for liver resection was longer (p = 0.0012), but was associated with a lower level of pain according to the visual analog scale (p = 0.02) and fewer bed days to discharge (p = 0.0007) than a similar open intervention. There was no statistically significant difference between the groups in terms of age structure, body mass index, number of liver tumors, blood loss, complication rate, and degree of ischemic liver damage.
Conclusions. Laparoscopic extended liver resection is a less invasive method than open liver resection, and patients recover faster after it, although its duration is longer. At the same time, laparoscopic and open intervention had a similar incidence of complications, which indicates acceptable safety and high clinical efficacy of the laparoscopic approach in the treatment of patients with liver disease.
Analisis waste pada depo rawat jalan dengan menggunakan lean hospital di Rumah Sakit Islam Siti Hajar Mataram
Authors: Fauzi Lalu Rizki , Anggraini Eniza 
Published: November 2024

Pharmaceutical installations can provide substantial revenue if managed properly and efficiently. Good or bad service can affect patient satisfaction. For this reason, pharmaceutical installations must improve quality in terms of patient satisfaction, one of which is by reducing waste that occurs in the pharmaceutical service process in hospitals. This study aims to analyze what waste occurs in outpatient depot services to improve service efficiency. This research is descriptive qualitative. Data were obtained through document review, direct observation, interviews. Waste identification uses Value Stream Mapping and Fishbone Diagram to determine the root causes of critical waste that occurs. The results showed that the highest percentage of value added was in the ordinary prescription service of 63.41%, the highest percentage of necessity but non-value added was in the prescription service that required drug distribution from the warehouse unit of 70.79%, and the highest non-value added was in the compounded prescription service process of 36.59%. By using lean hospital, it can be identified that many wastes occur including waiting, transportation, and defects. Increasing service efficiency at the Siti Hajar Mataram Islamic Hospital Outpatient depot can be done by minimizing non-value added activities.
Factors Affect In IELTS Test For Students of STIKOM Uyelindo Kupang
Authors: Heni Heni 
Published: November 2024

IELTS (International English Language Testing System) is a standardized English language proficiency test which is a prerequisite for continuing study or work. There are still many people who experience difficulties in carrying out the IELTS test to achieve a score above 6. The aim of the research is to know what are the factors that affect the result of students IELTS test. This research wants to find out what factors influence students' mastery of IELTS material. The method used in this research is descriptive qualitative. Qualitative descriptive research uses a series of methods to specify and describe data findings that occur in the field without providing experimental treatment. There are four IELTS materials given during the test, including: reading, writing, speaking, and listening. These four materials require strategies in their implementation and each has their own difficulties in mastering them. This research will be conducted at STIKOM Uyelindo Kupang with the research object being students of the Informatics and Information Systems Engineering Study Program Semester 2. It is hoped that this research will provide readers with an understanding regarding the success factors in carrying out the IELTS test.
Penggunaan Media Wattpad pada Pembelajaran Menulis Cerpen Bertema Lingkungan Hidup Berbasis Case Method bagi Mahasiswa PBSI FKIP Universits Tadulako
Authors: Ade Nurul Izatti G.Yotolembah  , Hasnur Ruslan  , Nur Halifah  
Published: November 2024

Penelitian ini bertujuan untuk mendeskripsikan penggunaan Wattpad dalam pembelajaran menulis cerpen bertema lingkungan hidup dengan metode case method. Metode penelitian yang digunakan adalah kualitatif, di mana peneliti bertindak sebagai instrumen kunci. Pengumpulan data dilakukan melalui observasi, tes, dan dokumentasi. Observasi dilakukan untuk menemukan masalah dan memperoleh solusi melalui wawancara dengan dosen dan mahasiswa. Tes dilakukan untuk mengetahui efektivitas penggunaan Wattpad dalam pembelajaran menulis cerpen dengan penilaian ketepatan isi, tokoh/penokohan, latar, alur, sudut pandang, gaya bahasa, dan amanah cerpen. Dokumentasi digunakan untuk memperoleh informasi kronologis pembelajaran melalui foto-foto yang mendokumentasikan keaktifan mahasiswa. Objek penelitian adalah mahasiswa Program Studi Pendidikan Bahasa dan Sastra Indonesia (PBSI) pada mata kuliah Penulisan Kreatif Sastra semester genap tahun ajaran 2023/2024. Penelitian ini melibatkan 46 mahasiswa yang dipilih sebagai sampel dari populasi sebanyak 210 mahasiswa Semester VI angkatan 2021 PBSI FKIP Universitas Tadulako. Data penelitian berupa nilai keterampilan menulis cerpen mahasiswa yang bertema lingkungan hidup, yang diperoleh melalui media Wattpad. Hasil dari penelitian menunjukkan total nilai keseluruhan sebesar 3.835 dengan rata-rata 83,4, yang masuk dalam kategori baik. Mayoritas mahasiswa mampu menulis cerpen sesuai dengan kriteria yang telah ditetapkan. Hasil penelitian menunjukkan bahwa penggunaan Wattpad dan metode case method terbukti efektif dalam meningkatkan keterampilan menulis mahasiswa. Diharapkan pengajar terus memanfaatkan media digital dan memberikan bimbingan intensif pada setiap aspek penulisan untuk mencapai hasil yang lebih optimal. Penelitian lanjutan diperlukan untuk mengeksplorasi pengaruh variabel lain terhadap hasil pembelajaran menulis mahasiswa.
Simbol Teatrikal pada Pementasan Drama Sekadar Imajinasi Karya N. Riantiarno “Kajian Semiotika”
Authors: Asra Nurul Hafidzah , Rudi Adi Nugroho  , Sumiyadi Sumiyadi , Halimah Halimah 
Published: November 2024

Penelitian ini bertujuan untuk mendeksripsikan makna dari simbol teatrikal pada pementasan drama Sekadar Imajinasi karya N. Riantiarno dengan kajian semiotika. Metode penelitian ini adalah dekriptif kualitatif. Data dalam penelitian ini adalah pementasan drama yang ditayangkan pada Youtube Teater Koma tahun 2020. Teknik pengumpulan data dalam penelitian ini menyimak dan menganalisis. Hasil temuan awal dalam penelitian ini, terjadinya bentuk penyimpangan sosial (korupsi) yang membuat tokoh utama mengalami gangguan mental setelah menerima hukuman. Akan tetapi, dalam drama ini dikemas dengan adegan tokoh utama menolak ingatan akan perbuatannya terdahulu yang mengakibatkan meninggalnya beberapa korban. Tokoh utama mengibaratkan dirinya hanyalah seorang penulis skenario dalam novel dan korban yang meninggal tersebut hanyalah pemeran fiktif dalam novelnya belaka. Terdapat lima elemen yang memuat sistem tanda yang dapat digali maknanya. Lima elemen tersebut mencakup 1) Tata suara, 2) kostum pemeran, 3) property, 4) gesture pemeran, dan 5) dialog antar tokoh