bluuebunny/crossref_metadata_2025 huggingface dataset:
NGHIÊN CỨU ĐẶC ĐIỂM LÂM SÀNG, CẬN LÂM SÀNG CỦA VIÊM TAI GIỮA MẠN TÍNH, KẾT QUẢ VÁ NHĨ ĐƠN THUẦN ĐƯỜNG TRONG ỐNG TAI
Authors: Tạ Hùng Sơn , Nguyễn Công Hoàng
Published: January 2025

Mục tiêu: Mô tả đặc điểm lâm sàng, cận lâm sàng trên bệnh nhân viêm tai giữa mạn tính. Đánh giá kết quả vá nhĩ đơn thuần theo phương pháp đường trong ống tai.  Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả chùm ca bệnh có can thiệp lâm sàng tự đối chứng trước sau trên 49 bệnh nhân viêm tai giữa mạn tính, được phẫu thuật vá nhĩ đơn thuần đường trong ống tai, tại Bệnh Viện Đa khoa quốc tế Hải Phòng và Bệnh viện trung ương Thái Nguyên. Kết quả: Tuổi trung bình 45.1 ±15.6  năm; nữ / nam = 1.33/1;  100% có chảy mủ tai từng đợt trong đó 61.2% mủ loãng và 32.7% mủ nhầy. Lỗ thủng có thể gặp với mọi kích thước từ nhỏ đến rộng gần hết màng nhĩ, đa phần niêm mạc hòm nhĩ ở trạng thái ổn định không còn viêm. Về sức nghe có 42.9% không nghe kém,  30.6% nghe kém nhẹ, 18.4% nghe kém trung bình, 8.2% nghe kém trung bình nặng và nặng. 100% số ca màng nhĩ liền kín sau 3 tháng theo dõi; 55.1% có mức độ hồi phục khoảng rhine ở mức trung bình ; 10% ở mức khá, 34.7% không thay đổi và không có ca nào thất bại về mặt thính học. Kết luận: phẫu thuật vá nhĩ đơn thuần đường ống tai cho kết quả phục hồi về giải phẫu và chức năng tốt.
THE AFTERMATH OF MARKETING MIX ON DECISIONS CONSUMER PURCHASES FROM TRADING COMPANIES (Case Study at “UD. MAJU” in Surabaya)
Authors: Donny Antonius Saputra Ignatius , Prassetya Aridha , Teguh S Harsono , Daengs GS Achmad
Published: January 2025

Companies that implement a quality management system within their company are organization, customer and market oriented, by combining the search for existing facts and problem solving. Companies should not only sell their products, but must know consumers' needs and desires. Knowledge of consumer behavior is essential to good marketing practices. Satisfaction in marketing should start by carrying out an analysis of consumer behavior in the right situation. This will at least encourage company managers to carry out what marketing activities should be proposed, planned and carried out. Therefore, companies must have tools in their marketing which are more commonly referred to as marketing mix which includes product, price, location and promotion. This research uses primary data, namely data obtained directly from respondents' answers by distributing questionnaires and secondary data, namely data obtained from the company that is used as the object of research. The analysis technique used in this research is multiple linear regression analysis. Meanwhile, the statistical test uses the F test and t test. The research results obtained using the SPSS program with the results of multiple linear regression analysis obtained by the F test show that there is a significant influence between the independent variable and the dependent variable with the calculated F value (22.573) > F table (2 .50). For the t test, it can be seen that the product variable (X1) has a significant influence on consumer purchasing decisions (Y) with a calculated t value (3.728) > t table (1.9944), the price variable (X2) has a significant influence on purchasing decisions consumer (Y) with a calculated t value (4.072) > t table (1.9944), the location variable (X3) has a significant influence on consumer purchasing decisions (Y) with a calculated t value (3.080) > t table (1.9944), while the promotion variable (X4) has a significant influence on consumer purchasing decisions (Y) with a calculated t value (3.230) > t table (1.9944).
Optimizing Teacher Engagement: The Role of Self-Efficacy, Interpersonal Communication, Organizational Culture, and Job Satisfaction Using Path and SITOREM Analysis
Authors: Hanum Ulfiah , Hermawan Andi
Published: January 2025

Abstract: Teacher engagement represents a teacher's alignment with their organization, characterized by physical, emotional, and rational commitment, fostering satisfaction and dedication to their profession. This study investigates strategies to enhance teacher engagement by analyzing the influence of self-efficacy, interpersonal communication, organizational culture, and job satisfaction. Employing a quantitative approach, the research uses path analysis to explore variable relationships and the SITOREM method to prioritize indicators for targeted interventions. Data were collected through surveys administered to 168 permanent teachers from PGRI vocational high schools in Bogor Regency, selected using the Slovin formula. The findings demonstrate that self-efficacy, interpersonal communication, and organizational culture significantly impact teacher engagement, both directly and indirectly, through job satisfaction. Organizational culture emerged as the most influential factor, highlighting the critical role of fostering a supportive, adaptive, and value-oriented work environment. SITOREM analysis identified actionable priorities, including enhancing teacher self-efficacy through vicarious experiences and verbal persuasion and strengthening organizational culture by promoting innovation and inclusivity. This study advances educational management by providing evidence-based recommendations for fostering teacher engagement. It underscores the necessity of integrating strategies that enhance individual capabilities and organizational dynamics to cultivate a motivated and committed teaching workforce. However, as the research is confined to vocational school teachers in one region, further studies are needed to validate and generalize these findings across diverse educational settings.    Keywords: teacher engagement, self-efficacy, interpersonal communication, organizational culture, job satisfaction.
Conditions for Stable Equilibrium of the Upright Human Body in the Absense and Presence of External Influence
Authors:   Georgian State University of Physical Culture and Sports. Tbilisi, Georgia., Moistsrapishvili Karlo
Published: January 2025

The proposal article is the union of the two previous scientific works [1,2]. The given paper studies conditions of the equilibrium stability of a cylinder - shaped homogeneous body. Thus, conditions of the equilibrium stability of different proportion upright standing men were studied. A new method allowing determination of a man’s common centre of gravity was developed. An optimal bending forward angle at which the degree of the equilibrium stability of an upright standing man reaches its maximum value was determined. Hence, the appropriate conclusions were drawn.

External forces are introduced herein, which may disturb the stable equilibrium and cause the body to tumble. The paper also introduces the concept of the coefficient of the stable equilibrium and proposes a formula for its calculation. Finally, a formula is set up to obtain the maximum value of external forces under which the body still maintains the state of equilibrium.
Dependence of the Size of the Visible Part of the Opponent's Goal Opening Area on the Angle of the Striker's Attack in Football
Authors:   Georgian State University of Physical Culture and Sports. Tbilisi, Georgia., Moistsrapishvili Karlo
Published: January 2025

The article discusses the situation that arises in football at the opponent's goal for a forward attacking at an acute angle to the goal line. A formula linking the angle of attack with the visible opening of the opponent's goal is established, and a corresponding graph is built.
Gambaran Tingkat Stres dan Kejadian Hyperemesis Gravidarum Pada Ibu Hamil
Authors: Pane Mustika , Tarigan Abul A’la , Tiara Anita
Published: January 2025

Hyperemesis Gravidarum is an incidence of nausea and vomiting in pregnant women that occurs excessively so that it interferes with activities. Many factors cause this condition, one of which is psychological. Psychological factors in the form of stress are considered to play an important role as a cause of hyperemesis gravidarum. This study aims to his study aims to identify stress levels and the incidence of hyperemesis gravidarum in pregnant women. The research method is descriptive quantitative with a cross-sectional approach. The study population was all pregnant women who checked their pregnancy as many as 249 respondents. The research sample used accidental sampling technique and obtained as many as 153 respondents. The results of the study showed that the stress level in pregnant women was in the moderate category for 107 people (69.9%), and the incidence of hyperemesis gravidarum was in the moderate category for 95 people (62.1%). Based on the results of this study, counseling is needed for pregnant women to be able to adapt and prepare for their pregnancy.
Validez de la Inteligencia Artificial en la Evaluación Psicométrica
Authors: Valdiviezo Verdezoto Cintya Yodeli
Published: January 2025

La Inteligencia Artificial (IA) ha permeado la ciencia y la sociedad, la IA comprende áreas especializadas en computación, aprendizaje automático, procesamiento del lenguaje natural, visión por computadora y robótica. En los usos más destacables de la IA se encuentra en los modelos que permiten a los profesionales realizar evaluaciones que permiten el diagnóstico y tratamiento de las distintas especialidades de la salud, incluida la psicología. La investigación se ha realizado empleando la metodología de la revisión sistemática cualitativa, que se corresponde a la presentación de los resultados de los estudios primarios sin combinan estadística. La revisión sistemática cualitativa verificada conllevó la búsqueda sistemática y exhaustiva de todos los artículos potencialmente relevantes acerca del tema de estudio, es decir, la validez de la inteligencia artificial en la evaluación psicométrica. Dentro de las conclusiones alcanzadas se advierte que la validez de la IA en las evaluaciones psicométricas se encuentra referida no solo al contenido de los ítems y la estructura interna del instrumento, sino también atiende a la forma de aplicación, puesto que con el empleo de las herramientas y sistemas que utilizan IA se ha superado en gran medida los mecanismos tradiciones de aplicar estas pruebas.
An Integrated Model for Health Insurance Fund Consolidation with Emphasis on the Experiences of Selected Countries
Authors: Dehghanpour Babak , Etebarian Khorasgani Akbar , Aghadavood Seyed Rasoul , Shahnoushi Forushani Mojtaba
Published: January 2025

Objective: The primary objective of this study is to develop an operational model for the integration of health insurance funds with a comparative approach, focusing on the experiences of Japan, Singapore, Turkey, Sweden, Norway, China, and Iran.

Methodology: This research utilizes a mixed-method approach (sequential exploratory) involving both qualitative and quantitative analyses. The qualitative phase involved a review of literature and expert interviews, which identified key indicators from the selected countries. In the quantitative phase, these indicators were tested using structural equation modeling (SEM) to quantify the proposed model. Data were collected from a sample of 20 experts through interviews, and the model's fit was assessed using various fit indices.

Findings: The study identified seven key dimensions that influence the integration of health insurance systems: structural factors, behavioral factors, environmental factors, processes, outcomes, and their respective subcomponents. The analysis revealed that these dimensions collectively explain approximately 89% of the variance in health insurance integration. The proposed model demonstrated a good fit with the empirical data, confirming the significance of the identified factors.

Conclusion: The findings suggest that the proposed model, which includes structural, behavioral, environmental, and process factors, is effective in guiding the integration of health insurance funds. The study recommends implementing policies that reduce management levels, enhance stakeholder cooperation, and continuously improve service delivery processes. The model provides a robust framework for improving the integration of health insurance services in Iran and could be adapted for use in other developing countries facing similar challenges. Further research is recommended to explore additional dimensions and apply the model in different contexts.
Analyzing the Lived Experiences of University Managers in Iraq in the Context of Knowledge Management Implementation to Propose a Model
Authors: Khalifeh Ali Doleh , Shafiepour Motlagh Farhad , Rasem Yunus Al Jabar Raed , Saeidian Narges
Published: January 2025

Objective: The aim of this research was to analyze the lived experiences of university managers in Iraq regarding the implementation of knowledge management to propose a model.

Methodology: The research methodology was qualitative-phenomenological. The research environment included all university managers in Iraq during the years 2023-2024. The sampling method was purposive and continued to the point of theoretical saturation until sufficient information was obtained, resulting in 21 university managers in Iraq. The research tools were in-depth and unstructured interviews. To determine the validity and reliability of the codes extracted from the interviews, the expert consensus method was used for confirmability. Data analysis was performed using open coding, axial coding, and selective coding.

Findings: The results showed that the model for analyzing the lived experiences of university managers in Iraq regarding knowledge management implementation comprises eight dimensions: organizational structure reconstruction, organizational welfare, organizational technology, promotion of organizational leadership culture, organizational excellence, organizational knowledge processing, overcoming limitations, and enhancing stakeholder service quality.

Conclusion: The findings of this study underscore the critical importance of various dimensions in the effective implementation of knowledge management in Iraqi universities. These dimensions include the reconstruction of organizational structure, enhancement of organizational welfare, utilization of organizational technology, promotion of organizational leadership culture, and processing of organizational knowledge. Additionally, addressing organizational constraints and improving stakeholder service quality are essential for fostering an environment conducive to knowledge management.
ANTI-TOXOPLASMA GONDII ANTIBODIES IN EGYPTIAN PATIENTS WITH SCHIZOPHRENIA
Authors: Elsherbini Sherif Mohsen
Published: January 2025

For nearly 100 years, infectious microbes dominated discourse on the causes of schizophrenia, Toxoplasma gondii is an obligate intracellular parasite and is found in 2 forms in humans. Toxoplasma gondii has been associated with several congenital CNS anomalies and more subtle delayed neurologic sequelae, The evidence of infection as a cause of schizophrenia was supported by the brain histopathological changes found in patients with schizophrenia, the risk of schizophrenia increased among individuals who were exposed in utero to elevated maternal T. gondii immunoglobin G (IgG) antibody, based on assay of archived maternal sera, was more than twice that of comparison subject, The main aim of this study was to compare the prevalence of T. gondii infection between individuals with schizophrenia and healthy controls in Egyptian choret samples.
100 patients with schizophrenia, and 100 healthy donors where screened for Toxoplasma gondii IgG and IgM antibodies in serum by ELISA.
A significant increase in the incidence of Toxoplasma gondii IgG positive antibody in patient group compared to control group (P 0.004)
The permeation and concentration of chemicals in medical gloves used by healthcare workers
Authors: Oshizaka Takeshi , Watanabe Megumi , Toyama Tomoaki , Sotome Takuya , Shinozaki Keiko , Usui Satoru , Mori Kenji , Sugibayashi Kenji
Published: January 2025

Some healthcare workers, such as pharmacists and nurses are sometimes exposed to chemicals and pathogens in their jobs and use medical gloves, gowns, and masks to protect themselves. Many studies have assessed permeation of chemicals through medical gloves, but few have quantified parameters like permeation rates or glove concentrations. In this study, either glove sheet made of three different materials (nitrile, polyvinyl chloride (PVC), and latex) was set in a vertical-type diffusion cell, and the glove sheet permeability of four model chemicals (pyridoxine, antipyrine, ethyl 4-hydroxybenzoate, and butyl 4- hydroxybenzoate) was tested. Pyridoxine did not permeate any gloves, while lipophilic chemicals showed higher permeability. PVC gloves had the highest permeation rates, while latex showed the fastest diffusion but lowest membrane concentration. Nitrile gloves had the lowest permeation but retained more residual chemicals. These findings highlight the need for caution in handling and disposing of contaminated gloves.
Promoting factors for the design of sustainable teacher training programmes: The perspective of leaders of modular in-service training series at the KPH Vienna/Lower Austria
Authors: Mayer Isabel , Katschnig Tamara , Liebhart-Gundacker Michaela , Ellmauer Wolfgang , Bisanz Andrea
Published: January 2025

In the years 2019-2024, a team from the University College of Teacher Education (KPH) Vienna/Lower Austria researched the sustainability of 15 modular training programs. The sustainability of in-service teacher training programs has only recently become the focus of attention in German-speaking countries. This project therefore aims to investigate the effectiveness and sustainability of modular training programs and to in-service training programs in terms of sustainability. This article examines the perspectives of leaders with regard to the sustainability of their modular training series in the categories of conditions for success, added value in practice and transfer. The survey was conducted using qualitative interviews with leaders, and the perspectives of speakers and participants were also recorded. The qualitative data was analysed using content-structuring qualitative content analysis according to Kuckartz (2018). The findings are incorporated into the development of further education formats.
Effects of sense of connectedness to school community after pandemic-related school closure on primary school children's learning behavior
Authors: Koch Helvi , Lilla Nanine , Schmid Christine , Schüpbach Marianne
Published: January 2025

In times of lockdown due to the Covid-19 pandemic, distance learning took place at German primary schools. The children had to study at home and were rarely in contact with their classmates or other mem­bers of the school community. It was primarily the class teachers who maintained contact with the children and organized school-led learning. However, having social contacts and especially feeling sense of connect­edness into a group is a basic human need and thus important basis both for general well-being and for the success of learning processes. This study investigates how the sense of connectedness with the school com­munity affects the learning behavior of primary school children after school closures due to the pandemic. To this end, the self-regulated and collaborative learning of N = 590 primary school pupils in Berlin and Brandenburg was analyzed as a function of their self-reported sense of school connectedness to school. The results of retrospective pre-post surveys show significant differences favoring primary school students with a higher sense of school connectedness, both in terms of self-regulated and collaborative learning after school closures due to the pandemic.
Can applied behavioral science help improve services and programs in humanitarian and post-conflict settings?
Authors:   Busara, Clarkin Tara , Darwich Jude , Schrier Ariana , Stege Marie , Titus Britt , Uberoi Vaidehi , Blanco Joaquín , Kariuki Rahab , Kimani Joseph , Mellow Daniel , Okafor Arize , Clarkin Tara , Schrier Ariana , Ali Bassam , Muslit Majd , Alkredi Bassam , Issa Jvan , Khalil Hozan , Alabed Fadi , Mohammad Al , Bansod Amey ,   Airbel BI,   Seed Security Solution Package
Published: January 2025

Maintaining agricultural productivity in the face of climate change requires development and distribution of new seed varieties. Unfortunately, Syria’s seed system was largely destroyed by the civil war. To rebuild seed manufacturing infrastructure, IRC launched a seed multiplication program in which farmers would receive free seeds in exchange for donating a portion of their harvest as seed for other farmers in their community. During the 2022-23 wheat season, this approach was piloted with 100 farmers. We conducted research with Airbel BI after the harvest to answer the following questions about the program’s design:
1. How should farmers be grouped in order to encourage generosity in their donations, trust in each other and effort towards the common goal?
2. How can the program be structured to include female farmers?
Semiotic Study Of Traditional Wedding Clothes In Du Village
Authors: Siano Felisitas , Ekhsan Nur Syamsiyah , Naro Antonius M.K.
Published: January 2025

This study aims to identify and analyze the meanings contained in traditional wedding clothes and accessories used at community weddings in Du Village, Lela Subdistrict, Sikka District. This research is a qualitative research method. Data collection techniques used in this study were observation, interviews and documentation studies. The results of the researcher's analysis found that the traditional clothes and accessories worn at the wedding in Du Village had their own meaning. The researcher concludes that the overall meaning contained in the traditional wedding clothes and the accessories used is to uphold self-respect and human rights.
An Overview Of The Pidgin And Creole
Authors: Aminah Aminah
Published: January 2025

This study wants to analyze how pidgin can use in learning a language especially in learning English. It based on creole can be a standard language while pidgin just can be developed as creole or it can be died out. It is done by looking for it origin and some theories, analyze its characteristic and how the process of the development in teaching a language especially English which has been reference of pidgin structure. There are a lot of pidgins and creoles are based on English in the making. This is a descriptive study using secondary data. The data were documents, including articles, journals and books. The data were collected through reading and reviewing documents. The data were then analyzed using a content analysis. As the result, pidgin can use in the classroom such as instruction and for a tool to learning and teaching English
ПРОБЛЕМЫ МЕДИАОБРАЗОВАНИЯ В УЗБЕКИСТАНЕ И В ДРУГИХ СТРАНАХ НА СОВРЕМЕННОМ ЭТАПЕ
Authors: Антонов-Овсеенко Антон
Published: January 2025

Работа посвящена доказательству тезиса, согласно которому в отдельно взятой стране складывается такой тип медиаобразования и собственно журналистики, который соответствует типу государственного устройства и основному вектору его развития — демократическому или авторитарному. При этом в том, что касается непосредственно Узбекистана, то и здесь курс на развитие демократических институтов, взятый президентом Ш.М. Мирзиёевым, предопределяет как вектор развития журналистского образования в стране, так и самой журналистики и национальных медиа. Для обоснования тезисов в работе реализован сравнительный анализ образовательных практик России и США, а также представлено графическое отображение динамики показателей рейтинга свободы слова и СМИ в США и России.
New approaches to laser treatment for oral peri-implant mucositis
Authors: Codruta Elena Ciurescu , Dima Lorena , Ciurescu Vlad Alexandru , Moga Marius Alexandru , Leretter Marius Traian , Rusu Laura-Cristina , Tigmeanu Codruta Victoria
Published: January 2025

Aim of the study The objective of this study is to examine the impact of treatment with two simultaneous lasers on implant mucositis. Material and methods A number of 40 patients (90 implants) were included in this research. They were allocated randomly in 2 groups. Results Both variables as Pocket depth around implants (if diminished under 6 mm of depth) and the absence of clinical signs of inflammation by means the absence of measured bleeding on probing at 6 months after performing the treatment were evaluated together as parameters evaluating the success of the performed treatment, and significantly better results were observed in first group of subjects at their evaluation.
IN VIVO ASSESSMENT OF CHARCOAL TOOTHPASTE EFFECT ON ENAMEL APPEARANCE - A NATURAL ALTERNATIVE FOR DENTAL AESTHETICS
Authors: Muntean Alexandrina , Candrea Sebastian , Delean Ada Gabriela , Condurache Andrei Ilie , Munceanu Anca , Neagoe Simina , Meroiu Alexandru , Pacurar Cristina , Lupșe Irina
Published: January 2025

Teeth colour and dental aesthetic are sensitive subjects in the contemporary society with impact in everyday life. This clinical study aims to evaluate the effect of activated charcoal-based toothpaste on tooth enamel appearance, after use for tooth brushing, 2 times a day, for 4 consecutive weeks. Material and methods. Patient assessment (n=81) was carried out in the morning session at the same clinic, using good lighting conditions by 2 calibrated operators. Colour evaluation was realised using the VITA Classical Shade Guide for selected teeth in the upper and lower arch (central incisors, canines, 1st premolars), considering the teeth mainly visible by patients in smile and speech. Patients were asked to answer a short questionnaire about preferences regarding toothpaste selection, information’s about whitening toothpaste and tooth brushing technique. The results reveal statistically significant differences in shade changes for maxillary teeth (centrals incisors; p=0.021, canines; p 0.001, 1st premolars; p=0.008). In the mandible, the differences were statistically significant for canines (p 0.001) and 1st premolars (p=0.001) and non-significant for central incisors (p=0.126). According to patients’ responses, 18.5% of this used whitening toothpaste daily. Only 11.1% of patients asked for dentist advice regarding whitening toothpaste. Conclusions. Toothpaste with activated charcoal produce significant changes in enamel appearance, for evaluated teeth, except central mandibular incisors, element that allow us to consider this type of toothpaste as an alternative for preserving and improving dental enamel appearance. Patients involved in this study have a tendency to consider that for toothpaste selection dentist recommendation is not always necessary.
NOBLE METAL CEMENTS: BALANCING ADVANTAGES AND CONSIDERATIONS IN DENTISTRY
Authors: Caltabellotta Cossimo , Stadoleanu Carmen , Calin Gabriela , Lungu Ionut Iulian , Armenia Alexandru , Vasiliu Mihaela , Gheban Diana , Girbea Catalina , Forna Norin
Published: January 2025

Aim of the study The primary objective of this review is to provide a comprehensive assessment of noble metal cements in dental medicine. By synthesizing relevant scientific literature, we aim to offer a thorough understanding of the characteristics, applications, advantages, and disadvantages of noble metal cements in contemporary dental practice. Through an evidence-based approach, our study seeks to inform dental professionals and researchers about the role and considerations surrounding the use of noble metal cements in restorative and prosthetic dentistry. Material and methods In pursuit of our study's objectives, we conducted an extensive exploration of the pertinent scientific literature. To gather relevant information and data, systematic searches were meticulously executed in electronic databases known for their dental and medical coverage. These databases included PubMed, Google Scholar, and Web of Science. Our search criteria were designed to retrieve articles published from May and onwards, ensuring that our review encompasses the most contemporary research and developments in the field of noble metal cements in dental medicine. Results The results of this comprehensive review are presented in a structured and organized manner, shedding light on various aspects of noble metal cements in dental medicine. We synthesize the current scientific knowledge regarding the properties, applications, and advantages of noble metal cements while also addressing potential disadvantages and limitations. Through our analysis, we aim to provide a holistic perspective on the use of noble metal cements in various dental scenarios. Conclusions Drawing from the gathered data and insights, our review offers conclusions that underscore the significance of noble metal cements in dental medicine. We discuss their biocompatibility, durability, malleability, and versatility, while also acknowledging considerations related to cost, esthetics, and environmental impact. By addressing these aspects, our study provides valuable guidance for dental professionals, educators, and researchers, supporting evidence-based decision-making in the use of noble metal cements for dental restorations and prosthetic applications.
INFLUENCE OF 2% CHLORHEXIDINE DIGLUCONATE PRE-TREATMENT ON MARGINAL ADAPTATION OF CONVENTIONAL GLASS-IONOMER CEMENT TO DENTIN
Authors: Boaru Mihai-Octavian , Ionuț Tărăboanță Ionut , Pancu Galina , Nica Irina , Salceanu Mihaela , Stoleriu Simona , Iovan Gianina
Published: January 2025

The aim of the study was to evaluate the effects of a 2% chlorhexidine digluconate solution on the glass-ionomer cement (GIC) - dentin interface subjected to a simulated cariogenic attack. Forty extracted teeth were used in the study. On each proximal surface a box-only cavity was prepared. Each cavity was initially conditioned using GC Dentin Conditioner (GC Corp., Tokyo, Japan), then the distal cavities were pre-treated with a 2% Chlorhexidine solution. All the cavities were then restored using GIC GC Fuji IX GP Capsule (GC Corp., Tokyo, Japan). Half of the samples (n=40) were submersed in a lactic acid-based solution to simulate the cariogenic attack. The samples were then sectioned and the marginal sealing at the cervical margin was assessed by optical microscopy and scanning electron microscopy. Statistically significant differences were recorded when comparing the samples submersed in demineralizing solution with or without chlorhexidine pre-treatment vs. samples that were not pre-treated and not submersed in acid with significance levels of p=0.044 and p=0.021. In conclusion, the use of 2% chlorhexidine digluconate in dentin pre-treatment do not significantly influence the marginal sealing of glass-ionomer cements to dentin. Seven days of submersion in a lactic acid-based demineralizing solution influences the marginal adaptation of glass ionomer cements to dentin with or without 2% chlorhexidine digluconate pre-treatment.
ANTIMICROBIAL RESISTANCE TO KLEBSIELLA PNEUMONIAE IN A NORTH EASTERN ROMANIAN HOSPITAL: a descriptive study
Authors: Luchian Nicoleta , Dabija Marius Gabriel , Eva Lucian , Marcu Constantin , Popescu Mihaela Roxana , Scutariu Mihaela Monica , Bogdan Goroftei Elena Roxana , Gutu Cristian , Cretu Oana Cristina
Published: January 2025

Microbial resistance is a rapidly escalating phenomenon worldwide, with complex mechanisms and important involvement in the determinants of healthcare-associated and in-hospital infections. At European level, it is estimated that 80.000 hospitalised patients have at least one HAI every day with multi-antimicrobial resistant germs, leading to an extension of hospital stay by 16 million days every year. In high-income countries, the prevalence is around 7.5%, and in low- and middle-income countries, the prevalence ranges from 5.7% to 19.2%. Material and method. Through a retrospective, descriptive study carried out in the Clinc Emergency Hospital ,,Prof.Dr. Nicolae Oblu" in Iasi, Romania in the period 2020-2021, the 602 identified and reported intra-hospital infections were investigated, focusing on the etiology and microbial resistance of the pathogens involved.Results. The most frequent etiological agents of HAI identified in our study were K. pneumoniae (13.45%), A. calcoaceticus (10.11%), S. aureus (8.45%), E. coli (7.62%), P. aeruginosa (5.47%), noting the predominance of Gram-negative bacteria (GN) and the fact that they are part of the ESKAPE group of pathogens, the percentages obtained being similar to the European average. Klebsiella pneumoniae (13.45 %) was the most common in the aetiological palette of HAIs, allowing us to highlight certain peculiarities regarding its antimicrobial resistance.Conclusions. The present study provides useful data for monitoring the resistance of pathogens involved in HAIs at hospital level, for guiding antibiotic therapy in healthcare-associated infections and for substantiating the implementation of a set of measures related to antibiotic therapy and antibiotic prophylaxis.
Aspects of aesthetic rehabilitation by IMPLANT-SUPPORTED fixed prosthESIS in a complete edentulous case
Authors: Beldiman Maria-Antonela , Tatarciuc Monica , Diaconu-Popa Diana , Macovei Georgiana , Budu Violina , Checheriță Laura , Aminov Liana , Luca Odette
Published: January 2025

Aim of the study Treatment possibilities for complete edentulous cases by placing implants result in superior functional results, for better aesthetics, as well as stability, strength and support of prostheses and improved masticatory efficiency. Materials and methods The objective of this study is to highlight the importance of fabricating appropriate implant-based fixed prostheses through the appropriate selection and design of all their components in the treatment plan for our patient, with total edentulousness. A 56-year-old patient presented himself at the dental office, with complete edentulous status, in both arches, and the treatment was the “Fast and Fixed” option of “All on 6” in the maxilla jaw and “All on 4” in the mandible, with framework from zirconia and PEEK, respectively. Results The rehabilitation of complete edentulous status with fixed implant supported prostheses is one of the challenging treatments, because of the aesthetic and functional factors that should be considered. Conclusions There is a superior prognosis of oral rehabilitation with implants compared to traditional methods, and statistical data shown a high success rate of around 95% for 10 years. Fixed restorative systems on dental implants are considered the ideal solution for replacing missing teeth in the case of total edentulous arches.
MONITORING AND INFORMATION FOR CARIES RISK CONTROL- BETWEEN ADVANTAGES AND LIMITATIONS
Authors: Muntean Alexandrina , Delean Ada Gabriela , Pacurar Mariana , Romanec Liviu-Cristian
Published: January 2025

The aim of this study was to assess the effect of information on oral and dental health in a group of schoolchildren’s. Material and method. Dental status for 162 children attending a school in the city of Cluj-Napoca was follow up for 1 year, using the DMFT index. Children received information’s about brushing technique, regular dental check-up and heathy diet in the course of the examination. Parents were informed about the diagnosed lesions and the need for treatment. Results. The number of monitored children varied between 162 at the beginning of the study (mean age 7 years) and 160 after 1 year (mean age 8 years), a numerical difference that did not exceed the statistically accepted 10% threshold. The DMFT progressively increase from 2.95 at the age of seven, to 4.02 at the age of eight, with statistically significant differences (p 0.001). Discussions. The Romanian model of oral healthcare is focused on curative treatments instead of preventive strategies. Schools have the mission of promoting plans aimed to extending children’s knowledge in preserving and improving oral health. It is also necessary to strengthen educational programs, as it is very important to maintain the motivation of children and that of their parents. Conclusions. Education and information alone, in the particular case of our group, did not accomplished an adequate control for caries risk.
THE DETECTION OF SARS-COV-2 IN NASOPHARYNGEAL SAMPLES USING AN ANTIGENIC TEST
Authors: Lunca Catalina , Cojocaru Cristian , Hurjui Loredana Liliana , Petrariu Florin Dumitru , Cojocaru Elena
Published: January 2025

Objectives: SARS-CoV-2 virus detection on nasopharyngeal specimens to infected individuals was a challenge for the COVID-19 pandemic outbreak. The aim of the study was to compare the performance of antigenic detection of SARS-CoV-2 in nasopharyngeal samples using an immunochromatographic method with molecular detection via qRT-PCR. Materials and Methods: 47 nasopharyngeal exudates were collected from suspected COVID-19 cases. The samples were performed both with the qualitative immuno-chromatographic method for S protein detection in the SARS-CoV-2 structure, fluorescent labelled anti-protein S antibodies and by qRT-PCR test for the qualitative detection of the screening gene E and the specific ORF1ab region of the RNA-SARS-CoV-2. Results: There was a good correlation between the positive antigen tests and the positive PCR assays measured through threshold cycle ORF1ab region (Ct orf). A better correlation was obtained between the antigen test results and the positive qRT-PCR tests when including patients with Ct orf below 25. Conclusions: Antigen testing is helpful for symptomatic people, especially during infectious period. A positive test has a high predictive value for infection, while a negative antigen test result via immuno-chromatography must be confirmed by a qRT-PCR test.
The twofold perspective of Schoolchildren’s oral health
Authors: Perpelea Anca-Cristina , Sfeatcu Ruxandra , Tănase Mihaela , Tușaliu Mihail , Dimitriu Bogdan , Cernega Ana , Pițuru Silviu-Mirel
Published: January 2025

Aim of the study: This study identifies the optimal condition for the efficient integration of prevention in schools, as well as the actors who contribute to achieving this. Drawing from results-based management theory, a dual perspective is applied, encompassing both the parent’s and the dental practitioner’s viewpoints to analyse the oral health status of schoolchildren in Romania. Materials and methods: Data were collected using Step 1 and Step 2 approach, and information correlation was done digitally, with the assistance of a web application. Statistical analysis included the utilization of Kruskal-Wallis H Test and Post-hoc Dunn-Bonferroni Test. Results: The results presented indicate a disparity between the adults’ perception and the clinical evaluation. The level of education background of parents becomes a factor capable of exerting influence on the oral health of the children, thus children whose mothers have university education have a better oral health compared to those whose female parents have primary or secondary education. Conclusions: Prioritizing electronic data collection should be emphasized, aiming to facilitate information, monitoring, evaluation and support for public health sector and community level. In this context, a nationwide program for promoting oral health in schools in Romania should be regulated.
IMAGING EVALUATIONS OF UNICA CERAMICS UNDER THERMAL CYCLE CONTROL CONDITIONS
Authors: Todor Raluca , Crăciunescu Emanuela Lidia , Manole Marius , Novac Andreea Codruţa , Pop Daniela Maria , Tanase Alina Doina , Sinescu Cosmin , Mostovei Andrei , Topala Florin-Ionel
Published: January 2025

Aim of the study: To evaluate the efficacy of Optical Coherence Tomography (OCT) in non-invasively monitoring temperature variations during ceramic sintering for dental prosthetics, emphasizing the importance of precise temperature control for optimal material properties and structural integrity. Materials and Methods: The study utilized OCT to examine 17 metal-ceramic restorations at various sintering temperatures (standard, 80°C below, and 50°C above the standard). The method involved generating 61 cross-sectional images per prosthesis to identify defects and structural changes. Results: OCT revealed significant insights into the impact of temperature deviations on ceramic microstructure, including uniform grain sizes at standard temperatures and areas of reduced retention at elevated temperatures, highlighting the technology's potential in quality control. Conclusions: OCT offers a rapid, accurate, and non-destructive means to assess sintering temperatures and detect defects in dental ceramics, facilitating improvements in dental prosthetics' fabrication process. The study advocates for OCT's integration into routine dental laboratory practices to enhance prosthesis quality and reliability.
ASSESSMENT OF DENTAL CERAMIC SINTERED AT DIFFERENT TEMPERATURES
Authors: Todor Raluca , Crăciunescu Emanuela Lidia , Novac Andreea Codruţa , Tanase Alina Doina , Sinescu Cosmin , Caplar Borislav Duşan , Zaharia Cristian , Pop Daniela Maria , Romînu Mihai
Published: January 2025

Aim of the Study: The aim of this study is to investigate the modifications that may occur in case of sintering temperature deviation for metal-ceramic crowns. Materials and Methods: For this in vitro study were made 15 metal-ceramic crowns for tooth 2.1 and were divided into 5 groups. The ceramic veneering comprised different sintering temperatures optimized for different properties: group 1 was sintered at 910 ºC as per the manufacturer's recommendation, group 2 was sintered at 940ºC (+30 ºC), group 3 was sintered at 960ºC (+50 ºC), group 4 was sintered at 880ºC (-30 ºC), and group 5 was sintered at 860 ºC (-50 ºC). Using the EXOCAD scanner the maxillary cast was scanned to obtain the metal frameworks from Cr-Co alloy (SCHEFTNER CoCr - 30 microns). Ips InLine One ceramic shade A3 developed by Ivoclar Vivadent Inc is applied in two layers, each one sintered at the same temperature. After ceramic sintering, the shade of each group was registered with Vita Easy Shade spectrophotometer and Vitapan Classical shade guide. Results: Errors in sintering temperatures can change the ceramic's density and mechanical properties but may also lead to colour shifts. This phenomenon occurs due to alterations in the ceramic material's microstructure, which can impact its optical properties and, consequently, its perceived colour. Conclusions: In conclusion, our study highlights the crucial impact of sintering temperature variations on the quality and integrity of metal-ceramic dental restorations. Our findings point towards the need for further innovation and research in thermal management within dental ceramics processing to achieve restorations that are not only aesthetically pleasing but also functionally reliable and compatible with the natural dentition.
INVESTIGATING THE IMPACT OF SYSTEMIC ALENDRONATE ON PERIODONTAL PARAMETERS IN OSTEOPOROSIS AND PERIODONTITIS PATIENTS. AN INTERVENTIONAL AND PROSPECTIVE STUDY
Authors: Laza Georgeta-Maria , Martu Maria-Alexandra , Sufaru Irina-Georgeta , Martu Silvia , Pasarin Liliana , Martu Ioana
Published: January 2025

Patients with osteoporosis exhibit a nearly twofold higher diagnosis rate of periodontitis compared to the general population, indicating osteoporosis is a potentially significant risk factor for periodontitis development. This study explored changes in periodontal and radiological parameters after systemic alendronate use in osteoporotic patients with periodontal disease. Sixty-four post-menopausal adults diagnosed with osteoporosis and periodontal disease were divided into two groups: Group A, without bisphosphonate therapy, and Group B, receiving alendronate (70mg/week) for 12 months. Both groups underwent non-surgical periodontal treatment. Parameters including plaque index (PI), bleeding on probing (BOP), probing depth (PD), clinical attachment loss (CAL), and radiographic infrabony defect depth (IBD) were evaluated at baseline and after 12 months. Oral administration of alendronate at 70 mg/week for 12 months was found to be safe and effective in enhancing the outcomes of non-surgical periodontal therapy both clinically and radiologically. This suggests alendronate could be a valuable adjunctive treatment for managing periodontal disease in osteoporotic patients
Leaf Morphology Classification Using Customized Convolutional Neural Networks
Authors: A. SRI LAKSHMI  , JYOTHI N M
Published: January 2025

Leaf morphology is a key trait in plant identification and taxonomy, crucial for understanding biodiversity and agricultural studies. Manual classification methods are often labor-intensive and subjective. Machine learning approaches, particularly convolutional neural networks (CNNs), offer automated and precise solutions. To classify plant leaves based on their morphology using CNNs, leveraging image datasets to develop an accurate and scalable model. The Plant Leaves for Image Classification dataset from Kaggle, consisting of leaf images from multiple species, was utilized. Data preprocessing included resizing, normalization, and augmentation. A CNN model was trained and optimized for classification tasks. The proposed CNN achieved an accuracy of 94.85% on the test set. Sample classifications demonstrated the model's ability to distinguish between similar leaf structures effectively. This study highlights the potential of CNNs in automating leaf morphology classification, contributing to advancements in botany and agriculture.
Exploring Attitudes of Physicians towards the implementation of Mobile Health technology in Saudi Arabia
Authors: Mohammed Mesfer Almalki  , Abdullah abdulaziz Alromaih  , Abdullah Ghalib Alsubaie  , Dr Samia Nayer Almutairi  , Mohamed Abdulaziz Almuhaini  , Hazem Nayer Almutairi
Published: January 2025

This study aims to explore Attitudes of Physicians towards the implementation of Mobile Health technology in SaudiArabia. In order to fulfil such aim, qualitative methodology was adopted and textual data were collected from 12physicians who work in King Fahad General Hospital Jeddah in Saudi Arabia. The gathered data were analysed throughusing thematic analysis. Three themes were identified (i.e. Benefits of m-health adoption, Challenges of m-healthadoption, and attitudes of medical staff following the application of m-health on their performance). The benefitsof m-health include making remote patient monitoring possible and easy, improves provider communication andcoordination, and Gives patients faster access to providers and care. The challenges of m-health include issues relatedto its usability, system integration, data security and privacy, network access, and reliability. The attitudes ofmedical staff following the application of m-health on their performance are divided into positive and negativeattitudes. Positive attitudes that connect between m-health and Increasing performance instead of documentation,and negative attitudes that connect between decreasing performance and m-health due to time consuming and itneeds training courses. The findings of this study cannot be generalised to the whole population due to limitations interms of sample size.