bluuebunny/crossref_metadata_2025 huggingface dataset:
Determination of Coaching Management of KONI Bogor Regency
Authors: Nurjaman Ade
Published: November 2024

This research aims to analyze the Determinants of Management Development of the Indonesian National Sports Committee (KONI) in Bogor Regency. The variables used are Planning, Organizing, Implementation, and Supervision as independent variables, and achievement as the dependent variable. The research method employs quantitative data obtained from questionnaires completed by 94 (Ninety-Four) athlete respondents who have achieved championships under the guidance of KONI Bogor Regency. The analysis was conducted using SPSS V.22 software. The results of the hypothesis testing analysis indicate that planning has a positive and significant effect on achievement. Organizing has a positive and significant effect on achievement. Implementation has a positive and significant effect on achievement. Supervision and evaluation also have a positive and significant effect on achievement. Furthermore, the combined influence of planning, organizing, implementation, supervision, and evaluation positively and significantly affects achievement.
 
Keywords: Planning, Organizing, Implementation, Supervision, Achievement.
The Effect Of Service Quality And Destination Image On Return Visit Intention Through Tourist Satisfaction
Authors: Sumarni Iseu , Baskara Ika , Fadli Jul Aidil
Published: November 2024

This study aims to determine how service quality and destination image affect revisit intention by considering satisfaction as mediation. This research uses quantitative methods, with data collection techniques in the form of surveys, by distributing questionnaires to respondents online. This study successfully collected a sample of 100 respondents and analyzed using Structural Equation Modeling (SEM) with a variant or component-based approach with Partial Least Square (PLS). The results prove that all relationships have a positive effect, including the mediating role of tourist satisfaction in the indirect effect between service quality and revisit intention and the mediating role of tourist satisfaction in the indirect effect between destination image and revisit intention. This managerial implication can be used as a reference material to increase the intention to visit again by creating a marketing strategy, implementing several new policies, to optimize the role of satisfaction as a mediator so that tourism managers can maintain quality service, and a pleasant experience through destination image, according to what consumers want and expect.
 
Keywords: Image Destination, Revisit Intention, Service Quality, Tourist Satisfaction.
ANTI-INFLAMMATORY ACTIVITY OF ETHANOLIC EXTRACT OF TARO LEAVES (Colocasia esculenta (L.) Schott) AND ITS FRACTIONS IN RATS USING EGG WHITE-INDUCED MODEL
Authors: Sujono Tanti Azizah , Rahmawati Desi
Published: November 2024

Taro plant (Colocasia esculenta (L.) Schott) is empirically known to have anti-inflammatory activity. Taro leaves contain secondary metabolites such as alkaloids, saponins, tannins, flavonoids, and polyphenols. This study aimed to prove the anti-inflammatory effectiveness of ethanol extract of taro leaves (EETL), ethyl acetate fraction (EAFTL), and residual fraction (RFTL) in rats induced by 1% egg white solution, and to identify the chemical compound groups contained in EETL and its fractions. Thirty-two rats were divided into eight groups, namely group I as a negative control (CMC-Na 0.5%), group II as a positive control (Diclofenac sodium 4.5 mg/kgBW), groups III-IV were administered EETL 100 and 200 mg/kgBW, groups V-VI were administered EAFTL 100 and 200 mg/kgBW, and groups VII-VIII were administered RFTL 100 and 200 mg/kgBW. The animal models were induced with 0.1 mL of 1% egg white solution subplantar 1 hour after oral treatment. The volume of rat leg edema was measured every 1 hour for six consecutive hours. This research shows that EETL 100 mg/kgBW and RFTL doses of 100 and 200 mg/kgBW have an anti-inflammatory effect with a percent inhibitory power of >50%. Phytochemical screening showed that EETL contains alkaloids, saponins, tannins, and phenolics. EAFTL contains tannins and phenolics, whereas RFTL contains saponins, tannins, and phenolics.
 Keywords: Taro leaves, antiinflammatory, egg white solution, fractionation
Green Packaging Attributes and their Role in Shaping Eco-Conscious Purchases: A Study of Generation Z Consumers in Kenya
Authors: K. Mwai Lydia
Published: November 2024

This study investigates the impact of green packaging attributes on the purchasing behavior of Generation Z consumers in Kenya, a demographic increasingly concerned with environmental sustainability. The research examines the roles of brand visibility, environmental awareness, and engagement in shaping the preferences of young Kenyan consumers toward products with eco-friendly packaging. Using a descriptive research design, the study collected data from 150 Generation Z consumers through an electronic questionnaire. The analysis reveals significant relationships between environmental awareness, brand visibility on green packaging, and purchase behavior, with higher levels of environmental awareness and engagement leading to a greater likelihood of purchasing sustainable products. Regression analysis confirmed the significance of perception regarding packaging sustainability and the role of sustainable packaging materials in influencing purchase behavior. The findings suggest that for brands to resonate with Generation Z in Kenya, integrating green packaging into their product offerings is essential. This research provides valuable insights for companies seeking to align with the growing environmental concerns of Kenyan consumers, offering a pathway to enhance brand loyalty and consumer engagement through sustainable packaging practices.
Informe del Gerente General 1980
Authors:   Federación Nacional de Cafeteros de Colombia
Published: November 2024

Informe del Gerente al 39 Congreso Nacional de Cafeteros. Celebrado en diciembre de 1980.
Informe del Gerente General 1992
Authors:   Federación Nacional de Cafeteros de Colombia
Published: November 2024

Informe del Gerente al 51 Congreso Nacional de Cafeteros. Celebrado en diciembre de 1992.
Moving Groups in the Solar Neighborhood with Gaia, APOGEE, GALAH, and LAMOST: Dynamical Effects Gather Gas and the Ensuing Star Formation Plays an Important Role in Shaping the Stellar Velocity Distributions
Authors: Liang Xilong , Yoon Suk-Jin , Zhao Jingkun
Published: November 2024

With Gaia, APOGEE, GALAH, and LAMOST data, we investigate the positional, kinematic, chemical, and age properties of nine moving groups in the solar neighborhood. We find that each moving group has a distinct distribution in the velocity space in terms of its metallicity, α abundance, and age. Comparison of the moving groups with their underlying background stars suggests that they have experienced the enhanced, prolonged star formation. We infer that any dynamical effects that gathered stars as a moving group in the velocity space also worked for gas. We propose for the first time that the ensuing newborn stars from such gas inherited the kinematic feature from the gas, shaping the current stellar velocity distributions of the groups. Our findings improve the understanding of the origins and evolutionary histories of moving groups in the solar neighborhood.
Equilibrium States of Galactic Atmospheres. II. Interpretation and Implications
Authors: Voit G. Mark , Carr Christopher , Fielding Drummond B. , Pandya Viraj , Bryan Greg L. , Donahue Megan , Oppenheimer Benjamin D. , Somerville Rachel S.
Published: November 2024

The scaling of galaxy properties with halo mass suggests that feedback loops regulate star formation, but there is no consensus yet about how those feedback loops work. To help clarify discussions of galaxy-scale feedback, Paper I presented a very simple model for supernova feedback that it called the minimalist regulator model. This follow-up paper interprets that model and discusses its implications. The model itself is an accounting system that tracks all of the mass and energy associated with a halo’s circumgalactic baryons—the central galaxy’s atmosphere. Algebraic solutions for the equilibrium states of that model reveal that star formation in low-mass halos self-regulates primarily by expanding the atmospheres of those halos, ultimately resulting in stellar masses that are insensitive to the mass-loading properties of galactic winds. What matters most is the proportion of supernova energy that couples with circumgalactic gas. However, supernova feedback alone fails to expand galactic atmospheres in higher-mass halos. According to the minimalist regulator model, an atmospheric contraction crisis ensues, which may be what triggers strong black hole feedback. The model also predicts that circumgalactic medium properties emerging from cosmological simulations should depend largely on the specific energy of the outflows they produce, and we interpret the qualitative properties of several numerical simulations in light of that prediction.
Searching for Emission Lines at z > 11: The Role of Damped Lyα and Hints About the Escape of Ionizing Photons
Authors: Hainline Kevin N. , D’Eugenio Francesco , Jakobsen Peter , Chevallard Jacopo , Carniani Stefano , Witstok Joris , Ji Zhiyuan , Curtis-Lake Emma , Johnson Benjamin D. , Robertson Brant , Tacchella Sandro , Curti Mirko , Charlot Stephane , Helton Jakob M. , Arribas Santiago , Bhatawdekar Rachana , Bunker Andrew J. , Cameron Alex J. , Egami Eiichi , Eisenstein Daniel J. , Hausen Ryan , Kumari Nimisha , Maiolino Roberto , Pérez-González Pablo G. , Rieke Marcia , Saxena Aayush , Scholtz Jan , Smit Renske , Sun Fengwu , Williams Christina C. , Willmer Christopher N. A. , Willott Chris
Published: November 2024

We describe new ultradeep James Webb Space Telescope (JWST) NIRSpec PRISM and grating spectra for the galaxies JADES-GS-z11-0 (

z

spec

=

11.122

−
0.003

+
0.005

) and JADES-GS-z13-0 (

z

spec

=

13.20

−
0.04

+
0.03

), the most distant spectroscopically confirmed galaxy discovered in the first year of JWST observations. The extraordinary depth of these observations (75 hr and 56 hr, respectively) provides a unique opportunity to explore the redshifts, stellar properties, UV magnitudes, and slopes for these two sources. For JADES-GS-z11-0, we find evidence for multiple emission lines, including [O ii]λ
λ3726, 3729 and [Ne iii]λ3869, resulting in a spectroscopic redshift we determine with 94% confidence. We present stringent upper limits on the emission-line fluxes and line equivalent widths for JADES-GS-z13-0. At this spectroscopic redshift, the Lyα break in JADES-GS-z11-0 can be fit with a damped Lyα absorber with

log
(

N

HI

/

cm

−
2

)
=

22.42

−
0.120

+
0.093

. These results demonstrate how neutral hydrogen fraction and Lyman-damping wings may impact the recovery of spectroscopic redshifts for sources like these, providing insight into the overprediction of the photometric redshifts seen for distant galaxies observed with JWST. In addition, we analyze updated NIRCam photometry to calculate the morphological properties of these resolved sources, and find a secondary source 0.″3 south of JADES-GS-z11-0 at a similar photometric redshift, hinting at how galaxies grow through interactions in the early Universe.
Sigmoid Eruption Associated with the X9.3 Flare from AR 12673 Drives the Gradual Solar Energetic Particle Event on 2017 September 6
Authors: Yardley Stephanie L. , Brooks David H.
Published: November 2024

Large gradual solar energetic particle (SEP) events can pose a radiation risk to crewed spaceflight and a significant threat to near-Earth satellites; however, the origin of the SEP seed particle population, and how these particles are released, accelerated and transported into the heliosphere are not well understood. We analyze NOAA active region (AR) 12673, which was the source responsible for multiple large gradual SEP events during 2017 September, and found that almost immediately after each significant eruptive event associated with SEPs an enhanced Si/S abundance ratio was measured by Wind, consistent with the previous work by Brooks et al. The EUV Imaging Spectrometer (EIS) onboard Hinode took data roughly 8 hr before the second SEP event on 2017 September 6, which allowed the regions of enhanced Si/S abundance ratio in the AR to be determined. We have shown that the AR contains plasma with elemental abundance values detected in situ by Wind. In particular, the plasma originates from the core of the AR, similar to Brooks et al., but in the moss (footpoints) associated with hot sigmoidal AR loops. The sigmoid, which contains highly fractionated plasma, erupts and propagates toward an Earth-connected magnetic null point, providing a direct channel for the highly fractionated plasma to escape and be detected in the near-Earth environment.
Solution-tube and existence results for fourth-order differential equations system
Authors: Bendouma Bouharket , Ladrani Fatima Zohra , Bouhali Keltoum , Hammoudi Ahmed , Alkhalifa Loay
Published: November 2024

In the present paper, we examine the existence of solutions to fourth-order differential equation systems when the $ L^{1} $-Carathéodory function is on the right-hand side. A concept of solution-tube for these issues is presented. The concepts of upper and lower solutions for fourth-order differential equations are extended to systems owing to this idea.
Servicios bibliotecarios especializados en investigación: competencias, modalidades y catálogo de servicios
Authors: Merlo Vega José Antonio
Published: November 2024

Las bibliotecas universitarias ofrecen servicios de apoyo a la investigación. Este estudio examina los diferentes tipos de servicios especializados en investigación que están ofreciendo universidades de todo el mundo. El objetivo principal es establecer un marco de referencia que sirva para ofrecer servicios especializados en bibliotecas. Se describen las fases y procesos de la comunicación científica para determinar los conocimientos especializados que se deben poseer para dar soporte a la investigación. Se relacionan las competencias sobre investigación necesarias para los servicios especializados. La metodología analiza y sintetiza las modalidades de prestación de servicios. Se clasifican los tipos de servicios en cuatro grupos: formación, información, prestación y asistencia. Se ofrece un catálogo de servicios bibliotecarios especializados en investigación en el que se detalla la finalidad y contenidos de cada servicio.
Del aburrimiento al cálculo del esfuerzo: las razones del absentismo universitario
Authors: Martín-Criado Enrique , Alonso-Carmona Carlos
Published: November 2024

El absentismo universitario suele explicarse por déficits del alumnado. Frente a ello, lo analizamos como una práctica racional de gestión del esfuerzo. La investigación se basa en un estudio de caso mediante técnicas cualitativas en una facultad de ciencias sociales. Hallamos que las prácticas absentistas conjugan dos condiciones de posibilidad: “no querer asistir” y “poder no asistir”. No se quiere asistir cuando la asignatura produce aburrimiento, que es producto de la comunicación pedagógica y de la adecuación del contenido a los intereses estudiantiles. Cuando la asignatura aburre, se deja de asistir si ello no impide obtener la calificación deseada. Ello depende de la utilidad de la asistencia para superar la evaluación, así como de las competencias escolares y objetivos de nota del estudiantado. Concluimos que en el absentismo intervienen reacciones emocionales y cálculos racionales, diversas en función de las características de la asignatura y del o la estudiante.
Analysis of the Absence of Corporate Social Responsibility in the Cooperative Savings and Credit Sector
Authors: González Arturo Luque , Popescu Cristina Raluca Gh.
Published: November 2024

The processes of corporate social responsibility (CSR) have become a double-edged sword. On the one hand, there are organizations that take advantage of them to favor their own interests and, on the other hand, others use these policies as a principal axis of the company to carry out all processes. In Ecuador, there is a need to analyze this same disjunction, in particular in the savings and credit cooperatives (COACs) sector, to identify whether such organizations behave in accordance with their canons of solidarity, ethics and sustainability. Through interviews with active subjects of institutional life embedded in the processes of the Social and Solidarity Economy (SSE) in Ecuador, such as the National Institute of the Social and Solidarity Economy and representatives of the cooperatives themselves, the existing legal framework, the voluntary nature of the aforementioned processes, and their deployment were analyzed. It was evident that organizations that claim to be ethical and transparent are often the contrary of their public face and use CSR processes for private gain.
The Effects of Local Heating on Facilitating Radial Angiography: A Randomized Controlled Trial
Authors: Asef Somaye , Moezi Seyyed Ali , Nasiri Ahmad , Zarei Bahare
Published: November 2024

Background:

Angiography through the radial artery is a novel selective approach with several advantages. Shortening the duration of each stage of the procedure leads to many benefits for patients and health personnel. This study aimed to investigate the effect of local forearm heating on facilitating radial angiography.

Materials and Methods:

This randomized clinical trial included one intervention and one control group with a post-test design. The study was conducted on 80 radial angiography candidates visiting the angiography ward, at Razi Hospital, Birjand, Iran, in 2018. The subjects were selected through convenient sampling and allocated to control and intervention groups using simple random allocation. The data were collected using a demographic form and radial angiography checklist. The intervention consisted of using an infrared emitter fixed 60 cm from the patient’s forearm. Infrared radiation was applied for 10 min for each patient to warm the radial artery. Afterward, the radial angiography procedure was carried out. The collected data were analyzed using descriptive and inferential statistics in the Statistical Package for Social Science (SPSS) software (v. 16) (p < 0.05).

Results:

The frequency and duration of artery puncture, the necessity of injecting a radiocontrast agent, the necessity of catheter replacement, the duration of fluoroscopy, and the volume of the radiocontrast agent in the experimental group were significantly lower than those in the control group (p < 0.05).

Conclusions:

Local heat in radial angiography is recommended for facilitating the procedure and improving patient welfare and peace.
Strategies to Bridge the Theory-Practice Gap in Nursing Education in Iran: A Participatory Action Research
Authors: Alimohammadi Nasrollah , Irajpour Alireza , Haghani Fariba , Safazadeh Shima
Published: November 2024

Background:

Nursing is a scientific profession that focuses on the art of care. However, its theory-practice gap has led to problems in teaching nursing students. Therefore, this paper aims to present the effects of the implementation of theory-practice gap strategies in training nursing students in the emergency department.

Materials and Methods:

This study included the implementation and reflection phases of participatory action research in both the School of Nursing and Midwifery of the Isfahan University of Medical Sciences, Iran, and the emergency ward of Alzahra Educational Hospital, Iran, from 2016 to 2019. First, 10 strategies were implemented with the help of stakeholders. In the reflection phase, 15 semi-structured, in-depth interviews, focus groups, observations, and field notes were analyzed using the conventional content analysis approach.

Results:

The data were obtained from 15 participants, most of whom were women. Data analysis revealed three themes and seven main categories, including leaving the comfort zone (understanding the necessity for changes, individual and organizational perception, and response to change), bringing about change (strengthening of patterns and preparation of processes), and unstable deployment of change (perceived promotion and planning to reinforce the change).

Conclusions:

Using participatory action research to reduce the theory-practice gap in nursing education is of grave importance. During the change process, stakeholders defined new educational processes or reinforced the previous applicable patterns. Also, they started to plan for more control over educational processes as well as considering new promotions. This is valuable knowledge for use in bridging the theory-practice gap in nursing education.
How to Engage Men in Preconception Health?: A Scoping Review
Authors: Agustina Silvia A. , Prabandari Yayi S. , Hakimi Mohammad , Hayati Elli N.
Published: November 2024

Background:

Men’s engagement in maternal and child health care in the preconception health forum is essential because it allows primary prevention of maternal and infant mortality and morbidity. This review aimed to identify strategies to engage men in preconception health.

Materials and Methods:

This scoping review was conducted from August to September 2022. The database searches included PubMed, EBSCO, and ProQuest from 2012 to 2022, related to men’s involvement in reproductive health, preconception health, family planning, maternity, and infant care; articles written in English; national (Indonesia) and international articles; and appropriate thesis. The searched keywords were man/male role, premarital, preconception, reproductive health, and fertility.

Results:

The electronic searches turned to 1969 articles, 16 of which met the inclusion criteria and were selected for study analysis. This review identified three themes: identifying programs that are sensitive to the limitations of men; developing community outreach strategies; and engaging management principles, policy, and legislation.

Conclusions:

Efforts to engage men in preconception health can be complicated, but several strategic programs have demonstrated some success. Subsequent programs that require men’s participation in preconception health services must be sensitive to the identified barriers.
Health Information Disorders Models: A Scoping Review
Authors: Zalpour Amir , Hashemian Mohammadreza , Geraei Ehsan , Farashbandi Firoozeh Zare-
Published: November 2024

Background:

The purpose of this scoping review is to identify the models of Health Information Disorders (HIDs), the components of these models, their study setting, and their designing approaches.

Materials and Methods:

In this study, PubMed, Web Of Science (WOS), Scopus, ProQuest, and Embase databases were searched to identify relevant articles. After screening the identified studies, 22 studies were selected. Data was extracted based on objectives and was combined and summarized by a narrative method.

Results:

The analysis of articles showed most of the included studies presented conceptual models or frameworks that provide a more structured and comprehensive view of a topic. The elements and components of the HID models were categorized into five main components, including information issues, communication issues, psychology issues, social issues and theories. Most studies employed, existing theories, evidence, or principles to design their approaches. The main setting of studies were COVID-19 and related topics such as vaccination.

Conclusions:

By synthesizing the HID models we tried to find the gap among types, components, designing approaches and setting of models. It seems we need some HID models based on contextual frameworks to understand deeply the way of being born, spread and death of HIDs in society. Also, future advancements in HID models should focus on other diseases rather than COVID-19 to provide a holistic approach in diverse healthcare landscapes.
The Effect of Multidimensional Nursing Interventions on the Incidence of Delirium in Patients with COVID-19
Authors: Hashemi Shahin , Jahani Simin , Sayadi Neda , Maraghi Elham , Yaghoubi Shoeleh
Published: November 2024

Background:

In patients with coronavirus disease 2019 (COVID-19), the incidence of delirium has been increased due to the nature of the disease and the specific protective protocols implemented to control the outbreak of this disease. The purpose of this study was to determine the effect of multidimensional nursing interventions on the incidence of delirium in patients with COVID-19.

Materials and Methods:

A quasiexperimental study (preintervention, postintervention assessment) was conducted in168 patients (84 patients in each group) with COVID-19 admitted to the general wards of Hazrat Ali-Asghar Educational Hospital in Shiraz, Iran, between May and June 2021. At first, based on inclusion criteria, the control group was selected to prevent information transmission between the study groups. The control group was treated as usual, but the intervention group received a three-part intervention that included nurse-related, patient-related, and environment-related measures. A Demographic Information Form and the Richmond Agitation Sedation Score and the Intensive Care Delirium Screening Checklist were completed for each patient. The collected data were analyzed.

Results:

25.30% of patients in the control group and 10.50% of patients in the intervention group experienced delirium (χ
2
=
5.72, p < 0.05). The results showed that the incidence of delirium was significantly lower in the intervention group. The mean number of days during which the patients experienced delirium was insignificantly lower in the intervention group (U = 2.56, p > 0.05). The mean length of hospital stay was also significantly lower in the control group (U = -2.41, p < 0.05).

Conclusions:

The multidimensional nursing interventions effectively reduced the incidence of delirium in patients with COVID-19.
Comparative Analysis of Periapical Healing and Periodontal Health in Endodontically Treated Teeth with Different Obturation Techniques
Authors: Kahate Mayur , Rajendran Rakhi , Shetty Urvashi A. , Parveen Sufia , Arya Ashtha , Alwafi Hanadi A.
Published: November 2024

ABSTRACT

Background:

The goals of endodontic therapy are to eradicate infection and encourage periapical tissue repair. The treatment’s outcome may be greatly impacted by the obturation method used.

Materials and Methods:

Ninety patients with comparable periapical lesions were grouped into three groups of 30 each for this randomized controlled experiment. Group C got single-cone obturation, Group B warm vertical compaction, and Group A cold lateral compaction. Assessments, both radiographic and clinical, were carried out at baseline, three months, and six months after therapy. The periapical index (PAI) was used to measure periapical healing, while bleeding on probing (BOP), clinical attachment level (CAL), and probing depth (PD) were used to measure periodontal health.

Results:

Group A had a mean PAI decrease of 3.1 ± 0.5, Group B 3.4 ± 0.4, and Group C 2.8 ± 0.6 during the 6-month follow-up. Group B had the biggest drop in probing depth (1.5 ± 0.3 mm), with Group A coming in second (1.3 ± 0.4 mm) and Group C third (1.0 ± 0.5 mm). In comparison to Group A (1.7 ± 0.3 mm) and Group C (1.5 ± 0.4 mm), Group B’s clinical attachment level improved the greatest (2.0 ± 0.4 mm). Group B (10%) had the lowest bleeding on probing ratings, followed by Group A (15%) and Group C (20%).

Conclusion:

When compared to cold lateral compaction and single-cone obturation, warm vertical compaction produced better outcomes for periapical healing and periodontal health. These results imply that obturation method is a major factor in the overall effectiveness of endodontic therapy.
Exfoliated Oral Mucosal Cell Micronucleus Frequency Evaluation in Healthy Individuals, Tobacco Users, and Patients with Potentially Malignant Disorders: An Analytical Comparative Study
Authors: Kranthi V , Shylaja S , Kandi Pallavi , Abidullah Mohammed , Soorneedi Neeharika , Latha Tummakomma P.
Published: November 2024

ABSTRACT

Objective:

Assessing the prevalence of exfoliated oral mucosal cell micronuclei in tobacco smokers, healthy persons, and patients with potentially malignant diseases (PMDs). A critical comparative investigation.

Materials and Procedures:

The study included 80 participants divided into four groups: healthy persons, tobacco users without any clinically noticeable oral lesions, patients with leukoplakia, and patients with oral submucous fibrosis (OSMF). Each group included 20 participants. Only cases with a verified histological diagnosis of PMDs were considered for evaluating micronuclei (MNi). This included non-smokers with mucosa that seems normal, smokers with mucosa that appears normal, and individuals with leukoplakia and OSMF who were histologically identified.

Results:

Compared to controls, smokers and patients with PMDs had much higher MN frequencies, with PMD patients having the highest MN frequency. There was a noticeable rise in MN frequency in the H and E and PAP stains from controls to tobacco users and then to PMD patients, showing a stepwise development. While the difference between tobacco users and PMD patients was only significant with the H and E stain, the inter-group comparisons show significant differences in MN frequency between controls and both tobacco users and PMD patients across both staining techniques. Additionally, the comparison of the H and E and PAP stains reveals that whereas MN frequencies in smokers and controls are typically similar, PMD patients have considerably higher MN frequencies in the H and E stains.

Conclusion:

In summary, the research indicates that tobacco users have a much higher MN frequency than controls, with an even more pronounced in individuals who have PMDs.
Evaluating the Effect of Orthodontic Treatment on Periodontal Health in Patients with Preexisting Periodontal Conditions
Authors: Alam Mohammad K. , Hajeer Mohammad Y. , Alsaleh Taif , Alhadi Balqees , Alsaleh Afrah , Alnsairy Raghad , Alruwaili Shahad
Published: November 2024

ABSTRACT

Background:

In many cases, orthodontic treatment is necessary to improve the alignment and functionality of teeth. But there is still uncertainty about how orthodontic equipment may affect periodontal health, especially in individuals who already have periodontal disease.

Materials and Methods:

For this investigation, a total of 50 patients with prior periodontal diseases were chosen. The participants were split into two groups: Group B (n = 25) was the control group and did not get any orthodontic intervention, whereas Group A (n = 25) had orthodontic therapy utilizing fixed appliances. At baseline, six months, and twelve months, periodontal health was evaluated using the Plaque Index (PI), Gingival Index (GI), and Clinical Attachment Level (CAL). Paired t-tests and ANOVA were used to assess the significance of time-series changes in the data.

Results:

There was a statistically significant increase in plaque accumulation in Group A, as evidenced by the mean PI increasing from 1.2 ± 0.4 at baseline to 1.5 ± 0.5 at 12 months (P < 0.05). Additionally, there was a noteworthy rise in the GI, from 1.1 ± 0.3 to 1.4 ± 0.4 (P < 0.05). Though there was a modest drop in the CAL from 3.5 ± 0.8 mm to 3.4 ± 0.7 mm, it was not statistically significant (P > 0.05) and remained very steady. Group B, on the other hand, showed no appreciable variations in PI, GI, or CAL during the course of the investigation.

Conclusion:

Patients receiving orthodontic treatment who already have periodontal disease tend to be more prone to plaque buildup and gingival irritation. Nonetheless, the clinical attachment levels can be sustained for the duration of the treatment with proper periodontal maintenance.
A Comparative Study on the Efficiency of Clear Aligners Versus Conventional Braces in Adult Orthodontic Patients
Authors: Alam Mohammad K. , Hajeer Mohammad Y. , Alahmed Miad A. , Alrubayan Sadeem M. , Almasri Maram F.
Published: November 2024

ABSTRACT

Background:

Orthodontic treatment in adults has gained popularity with the advent of clear aligners as an alternative to conventional braces.

Materials and Methods:

A total of 100 adult patients requiring orthodontic treatment were enrolled in this study and divided into two groups: 50 patients were treated with clear aligners (Group A) and 50 with conventional braces (Group B). The treatment duration, number of visits, and patient satisfaction were recorded. The primary outcome measured was the alignment of teeth, assessed using the Peer Assessment Rating (PAR) index at baseline and after 12 months of treatment. Secondary outcomes included the duration of treatment and patient-reported discomfort.

Results:

After 12 months of treatment, Group A (clear aligners) showed a 75% reduction in the PAR index, while Group B (conventional braces) showed an 80% reduction. The average treatment duration was 14.5 months for Group A and 16.2 months for Group B. Patient satisfaction was higher in Group A, with 85% of patients reporting high satisfaction compared to 65% in Group B. Discomfort levels were lower in Group A, with a mean score of 2.3 on a 10-point scale, compared to 5.6 in Group B.

Conclusion:

Clear aligners and conventional braces are both effective in achieving desired orthodontic outcomes in adults. However, clear aligners offer a shorter treatment duration, lower discomfort levels, and higher patient satisfaction, making them a preferable option for adult orthodontic patients.
Evaluation of the Efficacy of 3D-Printed Customized Orthodontic Brackets in Reducing Treatment Time and Improving Outcomes
Authors: Alam Mohammad K. , Hajeer Mohammad Y. , Alshammari Abdullah H. , Alenezi Zeyad M. M. , Aldhafeeri Shouq B.
Published: November 2024

ABSTRACT

Background:

The advent of 3D printing technology has revolutionized orthodontic treatment, enabling the production of customized orthodontic brackets tailored to individual patients. These customized brackets are hypothesized to reduce treatment time and improve clinical outcomes by providing better alignment precision and minimizing the need for adjustments.

Materials and Methods:

A randomized controlled trial was conducted with 60 patients aged 12–25 years requiring orthodontic treatment. The participants were randomly assigned to two groups: the experimental group (n = 30) received 3D-printed customized orthodontic brackets, while the control group (n = 30) received conventional brackets. Treatment duration, the number of adjustment visits, and the quality of alignment were recorded over an 18-month period. Quality of alignment was assessed using the American Board of Orthodontics (ABO) grading system. Statistical analysis was performed using a paired t-test to compare the outcomes between the two groups.

Results:

The average treatment time for the experimental group was significantly shorter, with a mean duration of 14.2 months (SD ± 1.8) compared to 18.6 months (SD ± 2.3) in the control group (P < 0.01). The number of adjustment visits was reduced by 35% in the experimental group (mean = 8 visits) compared to the control group (mean = 12 visits). Furthermore, the quality of alignment, as measured by the ABO grading system, was significantly higher in the experimental group (mean score = 90.5) compared to the control group (mean score = 78.2) (P < 0.05).

Conclusion:

The use of 3D-printed customized orthodontic brackets significantly reduces treatment time and improves the quality of orthodontic outcomes compared to conventional brackets. These findings suggest that customized brackets offer a promising approach for enhancing the efficiency and effectiveness of orthodontic treatment, potentially leading to better patient satisfaction and reduced clinical workload.
Evaluation of Feulgen Reaction for Quantitative DNA Analysis in Oral Leukoplakia: Insights into Malignant Transformation Risk
Authors: Srivastava Amit Kumar , Jain Ruchi , Srivastava Aishwarya , Shrivastava Swati
Published: November 2024

ABSTRACT

Background:

Oral leukoplakia is a potentially malignant disorder with a significant risk of transformation into oral squamous cell carcinoma. The Feulgen reaction, a DNA-specific staining technique, has been widely used for the quantitative analysis of DNA content in various tissues.

Materials and Methods:

A total of 50 patients diagnosed with oral leukoplakia were selected for the study. Biopsy samples were obtained from the lesions, and the Feulgen reaction was performed to stain the DNA. Quantitative DNA analysis was conducted using image cytometry, measuring the integrated optical density (IOD) of Feulgen-stained nuclei. The samples were categorized based on their DNA content into diploid, aneuploid, and tetraploid groups. Statistical analysis was performed to assess the correlation between DNA content and the histopathological grading of the lesions.

Results:

Out of the 50 samples, 30% (n = 15) exhibited diploid DNA content, 50% (n = 25) were aneuploid, and 20% (n = 10) were tetraploid. A significant correlation was found between aneuploid DNA content and higher grades of dysplasia (P < 0.05). The mean IOD values for diploid, aneuploid, and tetraploid samples were 1.2, 2.8, and 3.5, respectively. Patients with aneuploid DNA content demonstrated a higher risk of malignant transformation compared to those with diploid DNA content.

Conclusion:

The Feulgen reaction, combined with quantitative DNA analysis, is a valuable tool in assessing the malignant transformation risk in oral leukoplakia. The presence of aneuploidy in these lesions is significantly associated with higher dysplastic changes and an increased risk of progression to oral cancer. Further studies with larger sample sizes are recommended to validate these findings and to establish the Feulgen reaction as a standard predictive marker in clinical practice.
Comparative Evaluation of Clinical and Radiographic Changes Following Delayed Implant Placement in Mandibular Posterior Region with or without i-PRF Activation: A Split Mouth Clinical Study
Authors: Singh Shivam , Khan Yasir S. , Srivastava Amitabh , Srivastava Vivek , Meenawat Ajita , Sahney Tanu
Published: November 2024

ABSTRACT

Background:

Injectable platelet-rich fibrin (i-PRF) is prepared without anticoagulants having improved features such as increased fibroblast migration, proliferation, and tissue angiogenesis acceleration. When administered to titanium implants, i-PRF clings to the metal surface, generating a protein coating that impacts cellular activity required for osseointegration which aids in optimum and rapid osseointegration. The present study compared and evaluated the osteogenic properties of i-PRF in dental implant sites to determine the positive impact of i-PRF on osseointegration.

Methods:

A split-mouth clinical study design was used, involving ten participants with twenty sites of bilaterally missing mandibular molars. The subjects were divided into two equal treatment groups (N = 10): control group, where dental implants were placed without i-PRF activation, and test group, where i-PRF-activated dental implants were placed.

Results:

Both groups showed similar trends in plaque index and sulcular bleeding index. However, the test group exhibited significantly higher Implant Stability Quotient scores, indicating better stability. Peri-implant probing depth showed no significant difference between groups, but the test group had lower increase in probing depth. In addition, the test group showed superior wound healing and lower crestal bone loss changes compared to the control group.

Conclusions:

The findings of this study contributed to understand the effectiveness of i-PRF in enhancing osseointegration in dental implants, potentially improving clinical outcomes in implant dentistry.
Awareness and Need for Dental Insurance in India: A Survey-Based Study Among Dental Health Care Professionals
Authors: Jadeja Nileshwariba , Anerao Ruchik , Nandini C. , Buddhikot Chaitanya , Sekharamantri Anuraga , Singh Pooja , Gandhi Freya Mehul
Published: November 2024

ABSTRACT

Background:

Oral health is vital to overall well-being, but high dental care costs often restrict access, particularly in developing countries like India. Although dental insurance could alleviate these costs and enhance accessibility, it remains underdeveloped in Southeast Asia, including India.

Objective:

This study evaluates the awareness and perceived need for dental insurance among dental health professionals and students in India, focusing on their views regarding its role in improving care accessibility.

Methods:

An online cross-sectional survey was administered to 500 participants (dentists and dental students) at a dental college in Gandhinagar, India. Data from 474 completed responses were analyzed after excluding 26 incomplete ones. The survey covered personal demographics, insurance status, perceptions of dental care costs, and interest in dental insurance.

Results:

The survey revealed a significant demand for dental insurance. A substantial 85.3% of participants found private dental treatments costly, and 90.6% viewed dental insurance was as crucial as medical insurance. Furthermore, 76.7% showed interest in learning more about dental insurance.

Conclusion:

Integrating dental insurance into India's healthcare system could enhance dental care access by lowering financial barriers. Increased awareness and education about dental insurance among dental professionals and students are essential to address existing gaps and improve oral health outcomes.
Assessment of the Antimicrobial Efficacy and Mechanical Properties of Glass Ionomer Cement (GIC) Incorporating Silver Nanoparticles In Varying Concentrations for Pediatric Dental Applications
Authors: Imran MD , Mallick Rashmirekha , Vadlamani Rohit , Dhar Antarik
Published: November 2024

ABSTRACT

Background:

Glass ionomer cement (GIC) is widely used in pediatric dentistry due to its fluoride-releasing properties and strong adhesion to tooth structure. However, enhancing its antimicrobial efficacy remains a challenge. Incorporating silver nanoparticles (AgNPs) has been proposed as a solution to increase the antimicrobial properties of GIC without compromising its mechanical strength.

Materials and Methods:

This study investigated the effects of integrating varying concentrations of AgNPs into GIC on its antimicrobial efficacy against common oral pathogens and its mechanical properties. Three concentrations of AgNPs (0.5%, 1%, and 1.5% by weight) were evaluated. Antimicrobial activity was assessed using the agar diffusion test against Streptococcus mutans and Lactobacillus acidophilus. Mechanical properties, including compressive strength and wear resistance, were measured using standardized tests. Thirty pediatric patients were randomly assigned to receive dental treatments using one of the three modified GIC formulations.

Results:

The GIC modified with 1% AgNPs demonstrated optimal antimicrobial activity, showing a significant inhibition zone increase of 25% against S. mutans and 20% against L. acidophilus compared to the control. The compressive strength of the GIC was maintained, with the 1% AgNP formulation achieving a compressive strength of 220 MPa, comparable to the control (215 MPa). Wear resistance slightly decreased as the concentration of AgNPs increased.

Conclusion:

The addition of 1% AgNPs to GIC significantly enhances its antimicrobial properties without adversely affecting its mechanical strength. This formulation holds potential for improving the effectiveness of pediatric dental restorations by reducing the risk of secondary caries.
Completion problems and sparsity for Kemeny’s constant
Authors: Kirkland Steve
Published: November 2024

For a partially specified stochastic matrix, we consider the problem of completing it so as to minimize Kemeny’s constant. We prove that for any partially specified stochastic matrix for which the problem is well defined, there is a minimizing completion that is as sparse as possible. We also find the minimum value of Kemeny’s constant in two special cases: when the diagonal has been specified and when all specified entries lie in a common row.
Genus one $H$-surfaces with $k$-ends in $\mathbb{H}^{2}\times\mathbb{R}$
Authors: Castro-Infantes Jesús , Santiago José S.
Published: November 2024

We construct two different families of properly Alexandrov-immersed surfaces in

\mathbb{H}^{2}\times \mathbb{R}

with constant mean curvature

0<H\leq 1/2

, genus one and

k\geq2

ends (

k=2

only for one of these families). These ends are asymptotic to vertical

H

-cylinders for

0<H<1/2

. This shows that there is not a Schoen-type theorem for immersed surfaces with positive constant mean curvature in

\mathbb{H}^{2}\times\mathbb{R}

. These surfaces are obtained by means of a conjugate construction.
Early management of adult sepsis and septic shock: Korean clinical practice guidelines
Authors: Park Chul , Ku Nam Su , Park Dae Won , Park Joo Hyun , Ha Tae Sun , Kim Do Wan , Park So Young , Chang Youjin , Jo Kwang Wook , Baek Moon Seong , Seo Yijun , Shin Tae Gun , Yu Gina , Lee Jongmin , Choi Yong Jun , Jang Ji Young , Jung Yun Tae , Jeong Inseok , Cho Hwa Jin , Woo Ala , Kim Sua , Bae Dae-Hwan , Kang Sung Wook , Park Sun Hyo , Suh Gee Young , Park Sunghoon
Published: November 2024

Background: Despite recent advances and global improvements in sepsis recognition and supportive care, mortality rates remain high, and adherence to sepsis bundle components in Korea is low. To address this, the Korean Sepsis Alliance, affiliated with the Korean Society of Critical Care Medicine, developed the first sepsis treatment guidelines for Korea based on a comprehensive systematic review and meta-analysis.Methods: A de novo method was used to develop the guidelines. Methodologies included determining key questions, conducting a literature search and selection, assessing the risk of bias, synthesizing evidence, and developing recommendations. The certainty of evidence and the strength of recommendations were determined using the Grading of Recommendations, Assessment, Development, and Evaluations approach. Draft recommendations underwent internal and external review processes and public hearings. The development of these guidelines was supported by a research grant from the Korean Disease Control and Prevention Agency.Results: In these guidelines, we focused on early treatments for adult patients with sepsis and septic shock. Through the guideline development process, 12 key questions and their respective recommendations were formulated. These include lactate measurement, fluid therapies, target blood pressure, antibiotic administration, use of vasopressors and dobutamine, extracorporeal membrane oxygenation, and echocardiography.Conclusions: These guidelines aim to support medical professionals in making appropriate decisions about treating adult sepsis and septic shock. We hope these guidelines will increase awareness of sepsis and reduce its mortality rate.
Préserver et rendre identifiables les logiciels de recherche avec Software Heritage
Authors: Granger Sabrina , Mélès Baptiste , Santos Frédéric
Published: November 2024

Cette leçon présente des modalités d'archivage adaptées aux spécificités du logiciel et à différents profils d’utilisateur·ices. Les bonnes pratiques pour citer les logiciels, ainsi que des méthodes pour explorer efficacement les fonds de Software Heritage, seront abordées.