bluuebunny/crossref_metadata_2025 huggingface dataset:
DEVELOPMENT OF COMPRESSIVE STRENGTH PREDICTIVE MODELS OF SELF-COMPACTING CONCRETE CURED USING DIFFERENT CURING METHODS
Authors: Amartey Bilkisu Hassan Sada , Aliyu Ibrahim , Usman Bashir
Published: March 2024

Curing is the process of controlling the rate and extent of moisture loss, relative humidity and temperature from newly poured concrete for a certain period of time after it has been cast or finished to ensure that the cement has been properly hydrated and the concrete has hardened. The concrete strength, durability and other physical properties are affected by curing and application of the various types as it relates to the prevailing weather conditions in a particular locality, as curing is one of many requirements for concrete production, as such it is important to study the effect of different curing method. The concrete cube specimens produced with cement, fine aggregate, and coarse aggregate mix-ratio of 1:2.23:1.62 were prepared with a water-cement ratio of 0.5 and superplasticizer (SP) dosages of 0.5%, 1.0%, and 1.5%. The SP dosages were computed as percentages by weight of the cement content.  The cubes were tested for compressive strength after curing for 7, 14, 21, 28, and 56 days using three curing methods namely; Immersion, open air, and wet burlap curing methods. This study assessed the effect of different curing methods on compressive strength of self-compacting concrete through the development of a mathematical method to model and analyze the effect of the curing methods used on the compressive strength of the SCC and also to validate the reliability of the method used.  Data Fit software was used in the model development, the curing age and super-plasticizer dosage were used as independent variables while the compressive strength...
MODELING NOVEL COVID-19 PANDEMIC IN NIGERIA USING COUNT DATA REGRESSION MODELS
Authors: Kuhe David Adugh , Udoumoh Enobong Francis , Ibeajaa Ukamaka Lawrensia
Published: March 2024

This study aimed to model COVID-19 daily cases in Nigeria, focusing on confirmed, active, critical, recovered, and death cases using count data regression models. Three count data regression models-Poisson regression, Negative Binomial regression, and Generalized Poisson regression were applied to predict COVID-19 related deaths based on the mentioned variables. Secondary data from the Nigeria Centre for Disease Control (NCDC) between February 29, 2020, and October 19, 2020, were used. The study found that Poisson Regression could not handle over-dispersion inherent in the data. Consequently, Negative Binomial Regression and Generalized Poisson Regression were considered, with Generalized Poisson Regression identified as the best model through performance criteria such as -2 log likelihood (-2logL), Akaike information criterion (AIC), and Bayesian information criterion (BIC). The study revealed positive and significant impacts of confirmed, active, and critical cases on COVID-19 related deaths, while recovered cases had a negative effect. Recommendations included increased attention to confirmed, active, and critical cases by relevant authorities to mitigate COVID-19-related deaths in Nigeria.
TILTED DOUBLE BOTTOM-SIMULATING REFLECTION RELATED TO RECENT FOLD LIMB ROTATION FROM THE DEEP OFFSHORE DEEPWATER NIGER DELTA
Authors: Aminu Muslim Babatunde , Ojo Samuel
Published: March 2024

Double-BSRs are enigmatic seismic data reflections with implications on subsurface fluid migration and phase, and hydrate stability in shallow subsea sediments. From 3D exploration seismic data, we detail the occurrence of a double BSR from the Offshore Niger Delta. Identified in an earlier study, we delineate the areal extent of the double-BSR and model expected temperatures at the deeper BSR to provide constraints on its origin. The deeper BSR occurs at a minimum estimated depth of 114 m below the upper BSR. Temperature modeling results indicate Structure I hydrates are unstable at the current depth of the deeper BSR. The lower seismic amplitudes and discontinuous nature of the deeper BSR and its apparent hinterland tilt relative to the upper BSR suggest it marked the base of the gas hydrate stability zone in the climatic (GHSZ) and tectonic past when the pressure-temperature (P-T) conditions were significantly different. We propose that recent tectonic uplift on the thrust-cored ridge system considerably altered local P-T conditions which led to the dissociation of gas hydrates and consequent upward migration of the base of the GHSZ to shallower levels until it reached its present state, leaving behind a tilted relic of its former position. The relic likely benefited from low advective rates which encouraged its preservation through time. We further reckon that the tilt of the Relict BSR relates to the rotation of the fold limb during recent thrust activity and as a result we aver that Relict BSRs may record limb rotation on fault-bend folds.
Importance of wellbeing strategies at the workplace
Authors: Murtaza Shah Ali , Kun Ágota , Molnár Edina
Published: March 2024

Improving wellbeing at the workplace is the most talked-about topic in human resource management these days. Organizations now are not just focusing on the output of employees, but they are also focusing on how they manage to give input and how they feel at the workplace. Substantial research has been conducted in the area which reveals that the sustainable performance of employees is directly related to the mental health, vitality, and wellbeing of employees. Organizations need to put employee vitality and wellbeing as a priority in their operations. This study aims to understand the factors that influence the well-being of employees in the workplace and how they can improve. The study also reveals how the organizations that have a sound wellbeing strategy impact the overall performance and mental health of employees working in those organizations. 162 respondents filled the questionnaire. The data was analyzed using SPSS. The results show that the size of the budget for well-being and the existence of a well-being strategy impacts the ability of companies to offer well-being programs. Another important finding from the research is that the geographical location of the company impacts the existence of well-being strategies in companies, and they can differ depending on the geographical location. It was also found that if a company needs a well-being strategy, it is not impacted by the size of the company. The more companies invest in ensuring the wellbeing and mental health of employees, the more the employee motivation and meaningfulness at work improves, resulting in better performance.
Robotprogramozás oktatásának lehetőségei offline és online környezetben
Authors: Pántya Róbert , Novák Tamás , Mucsics F. László
Published: March 2024

In the spring of 2020, the Covid-19 pandemic situation put everyone in a particularly difficult situation in all areas of life. Those working in education had to implement their courses online overnight, which until then had been mostly, or even exclusively, offline in the classroom. This challenge also put colleagues teaching robot programming in a difficult situation. At the Károly Róbert Campus and its predecessor institutions, we have been dealing with students studying information technology for almost a decade and a half. We teach subjects related to robotics as optional subjects in the Business Informatics BSc course launched in 2010, and as compulsory subjects in the higher education program for Computer Science running since 2019. In our study, we compare the robotics education implemented in the higher education program for Computer Science in an online and offline environment. We present in detail how the subjects „Methodological Basics of Programming” (first semester) and „Basics of Robotics” (third semester) were implemented before (offline) and during (online) the Covid-19 pandemic. At the end of our investigations, we make conclusions and suggestions about the most important actions after the end of the epidemic situation, how we can prepare with our subjects taught for the situation, if everyday life and the educational environment were to change similarly drastically.
Exploring the Attitudes and Practices Regarding Alternative Revenue Streams among Indian Dental Professionals - A cross-sectional analysis
Authors: R Kesavan , Natarajan Prabhu Manickam , Mary A Vinita , Umapathy Vidhyarekha , Swamikannu Bhuminathan
Published: March 2024

Background: This study aimed to explore the attitudes and practices of dental professionals regarding alternative sources of revenue through a descriptive cross-sectional design and to explore other demographic factors which influence them.
Materials and Methods: A Descriptive Cross-Sectional study was conducted among 400 dental professionals selected using stratified random sampling and were approached either personally or through electronic medium to fill a pre-tested validated questionnaire assessing their attitudes and practices towards alternative sources of revenue. The data were analysed using IBM SPSS Statistics Version 26.0. Cross tabulations were made and statistical significance was assessed using Pearson’s Chi-square test and Fisher’s exact test. A Binary Logistic Regression model was developed to predict the practice of alternative sources of revenue based on gender, qualification, occupation, and experience.
Results: The results showed that about 36% of the participants are currently pursuing alternative sources of income with a significantly higher percentage of females involved (p=0.005). Most of the participants (37.6%) reported investing in stocks and finance followed by real estate, food industry, career guidance, product development etc. Around two-thirds of females reported being unsatisfied with their current income from dentistry and they have 1.76 times the odds of pursuing alternative sources compared to males (p=0.022). Undergraduate dentists have 2.51 times the odds of practicing other means of revenue.
Conclusions: The study concludes that a substantial percentage of respondents had pursued alternative sources of revenue. Policymakers and educators can use these findings to develop strategies to promote entrepreneurship and financial literacy among dental professionals.
Bangladesh Journal of Medical Science Vol.23 (Special Issue) 2024 p.S9-S19
Comparative evaluation of sealing ability of two self-adhesive flowable composites following various restorative techniques in Class V lesions: An in vitro study
Authors: Mishra Raman , Sarangi Priyanka , Mallick Rashmi Rekha , Punjabi Mansi , Satapathy Sukanta Kumar , Sheetal Kotni
Published: March 2024

Background: Class V lesions present a clinical challenge due to their location at the cervical region of teeth, where factors such as microleakage and polymerization shrinkage can compromise the longevity of restorations. Self-adhesive flowable composites offer the advantage of simplified application, but their sealing ability may vary based on different restorative techniques. This in vitro study aimed to compare the sealing ability of two self-adhesive flowable composites, Clearfil S3 Universal and G-Premio Bond, when applied using various restorative techniques in Class V lesions.
Materials and Methods: Eighty extracted human premolars were selected and randomly divided into two groups, with each group treated with one of the two self-adhesive flowable composites. Class V cavities were prepared on the buccal surfaces of the teeth. Four restorative techniques were employed: Group A - Direct application of the composite; Group B - Application of the composite with a bonding agent (Clearfil SE Bond); Group C - Application of the composite with selective enamel etching; Group D - Application of the composite with a dentin adhesive (G-Premio Bond) and selective enamel etching. After restoration, the teeth were subjected to thermocycling, immersed in methylene blue dye, sectioned, and evaluated for dye penetration under a stereomicroscope. The extent of dye penetration was quantified and statistically analyzed.Results:The results showed that Group D, where G-Premio Bond was used with selective enamel etching, demonstrated the least dye penetration (mean value X) compared to the other groups (X1, X2, X3). The differences in sealing ability between the groups were statistically significant (p < 0.05). Clearfil S3 Universal showed better sealing ability when used with a bonding agent (Group B) compared to direct application (Group A).
Conclusion: In Class V restorations, the choice of self-adhesive flowable composite and restorative technique significantly affects sealing ability. G-Premio Bond, in combination with selective enamel etching, provided superior sealing compared to other techniques. Clearfil S3 Universal performed better when used with a bonding agent. These findings highlight the importance of selecting the appropriate material and technique for Class V restorations to minimize microleakage and improve clinical outcomes.
Bangladesh Journal of Medical Science Vol.23 (Special Issue) 2024 p.S92-S96
MRC avanzata e genere: una visione pluriprospettica /multidimensionale
Authors: Fantuzzi Anna Laura , Berri Elisa , Tartaglione Lida , Mandreoli Marcora , Giannini Rossella , Dominjanni Sara , Porreca Silvia
Published: March 2024

Chronic kidney disease (CKD or CKD [Chronic Kidney Disease]) is present in approximately 7% of the world population: several studies have highlighted socio-cultural discrimination, to the detriment of women, in referral to specialist nephrological care and access to dialysis and transplantation. Globally, gender discrimination limits the possibility of access to education, medical care and involvement in clinical trials. Women on dialysis have different comorbidities than men; the choice to follow a predialysis process and the subsequent orientation towards dialysis treatment are certainly influenced by gender as is the choice of dialysis access. As regards kidney transplantation, women are more likely to offer themselves as donors rather than to be beneficiaries. Conventional knowledge supports the belief that there are gender differences in the acquisition, preparation and consumption of food, for this reason it is essential to consider the variables that come into play when defining and agreeing treatment paths, in particular in taking care of people with chronic diseases such as CKD
Web-based information system design of Graveyard licensing Administration in Grogol Selatan sub-district
Authors: Faizah Faizah , Ishak Riswandi , Widyastuti Handini
Published: March 2024

: The role of service is very important in the current era of globalization, especially in government agencies engaged in services which will be needed by the applicant or the community. With time constraints and the impact of the Covid pandemic which has closed access to direct communication, it will make it difficult for some applicants or the public to apply for permits. The purpose of this research is to build a website that helps the One Stop Integrated Service (PTSP), so that applicants can apply online as one of the government's main functions in efforts to fulfill applications in the field of licensing services. Governor Regulation No. 47 of 2017 concerning instructions for the Implementation of One Stop Integrated Services (PTSP) for submitting applications for the issuance of Graveyard Land Use Permits (IPTM). This research is based on the waterfall software development method and data collection techniques with the results of observing the Web-Based Information System of Graveyard Licensing Administration in Grogol Selatan Sub-District
Analysis of data exchange quality in LORA SX1262 Multipoint Telemetric Communication Network
Authors: Zain Satria Gunawan , Suhardi Iwan , Haslina Haslina
Published: March 2024

This study aims to determine the results of the analysis of Quality of Service (QoS) parameter testing using LoRa SX1262 telemetry with a certain distance on Smart PDAM and determine the effectiveness of using LoRa SX1262 telemetry on data exchange on multipoint communication networks. The data collection technique uses observation and documentation techniques to obtain valid test results data. This study uses an quantitative descriptive analytical approach with a standard assessment of the TIPHON QoS parameters on the throughput, delay, packet loss, and RSSI (Received Signal Strength Indicator) values. Based on the results of the analysis of this study, it was found that the data can be received well when the RSSI value is above -90 dBm, the average throughput and packet loss values resulting from data transmission on a digital water meter system is inversely proportional to the amount of bandwidth, the average delay of sending LoRa SX1262 telemetry data using a 115200 baud rate of 513 milliseconds. The conclusion of this study is that multipont communication on digital meter data transmission is effectively used at a maximum distance of 300 meters with a bandwidth of 500 kHz.
Academic Motivation and Career Decidedness of STEM and HASS Students during Higher Education
Authors: Masliyenko Tetyana , Francisco de Sousa Reis Carlos
Published: March 2024

The present paper justifies the design of the research, which centers on examining the intricate relationship between students' academic motivation and career decidedness within the context of Portuguese higher education. The study is underpinned by an extensive review of literature from the last seven years, delving into students' career motivation, and unveils a promising path for investigation. Grounded in the conceptual framework of Self-Determination Theory, as proposed by Deci and Ryan in 1985, intrinsic motivation, often synonymous with autonomy, is considered the keystone of individual self-regulation and behavioral performance, and exhibits positive correlations with academic motivation and career decidedness. Therefore, a thorough analysis of the interplay between the various types of academic motivation and career decidedness among higher education students becomes imperative. This exploration encompasses multiple factors, including gender, age, field of study (STEM, humanitarian, arts, and social sciences), and educational level. To conduct this investigation, a quantitative methodology is employed, utilizing questionnaires to assess participants' academic motivation types and levels of career decidedness. The research results bear significant potential for practical implications aimed at enhancing academic practices within higher education institutions, ultimately contributing to a positive impact on students' career decidedness and related outcomes.
Spouse Support, Innovative Behaviour and Entrepreneurial Effectiveness of Women-Owned Agricultural Small and Medium Enterprises (SMEs) in Uganda
Authors: Nanyanzi Marion , Katumba Proscovia , Tibaingana Anthony
Published: March 2024

The purpose of this study is to establish whether innovative behaviour mediates the relationship between spouse support and entrepreneurial effectiveness of Women-owned agricultural Small and Medium Enterprises in Uganda. This is a cross-sectional and correlational study. A self-administered questionnaire was utilised to collect information from women-owned agricultural SMEs in Uganda's central region. In order to determine the mediating role of innovative behaviour, the Statistical Package for the Social Sciences (SPSS.25) and Medgraph - Excel Version were used to conduct correlation, hierarchical regression and mediation analyses on the data. Study findings revealed that spouse support and innovative behaviour positively and significantly explicate the entrepreneurial effectiveness of Women-owned agricultural SMEs. In addition, spouse support is positively and significantly associated with innovative behaviour and finally, innovative behaviour partially mediates the association between spouse support and entrepreneurial effectiveness. The study established that innovative behaviour partially mediates spouse support and entrepreneurial effectiveness of women-owned agricultural SMEs, unlike extant studies that interrogated the direct relationship between the study variables in predicting entrepreneurial effectiveness.
University Management and Discrimination Towards Trans University Students in Metropolitan Lima
Authors: Roncal Benites César Darío , Núñez Lira Luis Alberto , Romero Bendezú Anibal , Faustino Sánchez Miguel Angel , Aguinaga Villegas Dante
Published: March 2024

Background: The purpose of this research was to describe how discrimination against trans students is carried out in universities in Metropolitan Lima. Also called gender identity discrimination, it is included in the Yogyakarta Principles (United Nations), a document that seeks to serve as protection for the LGBTQ+ community.
Methods: The investigation started in September 2021 and ended in April 2022. A qualitative methodology was used, triangulating designs such as multi-case studies, documentary analysis, and unstructured interviews. The latter were processed and conducted via online conversations (using Zoom) with students who were purposely selected by the authors.
Results: Five trans students were the sample for this research, which through a series of interviews taught us that each of them has a different sexual orientation, have suffered exclusion at their universities, and have experienced prejudice even from their own teachers and administrative staff.
Conclusions: It is highly recommended that all staff working on the university campus, particularly professors, receive training on issues of sexual diversity, especially transgender people, and personal unisex toilets be implemented.
Identifying impactful sea turtle conservation strategies: a mismatch between most influential and most readily manageable life-stages
Authors: Richards SA , Cvitanovic C , Dunlop M , Fossette S , Thomas L , Tucker AD , van Putten EI , Whiting AU , Whiting SD , Hobday AJ
Published: March 2024

Sea turtles worldwide face a range of threats including sea level rise and warming associated with climate change, predation by invasive species, plastic and light pollution, coastal development, and human interference. Conservation managers have a long history of aiding sea turtle populations, from protecting nests to head-starting hatchlings. Due to these challenges faced by turtles, there is a constant focus on assessing the likely success of proposed conservation interventions to help inform decision-making processes. We develop an age-based, spatially implicit population model for the north-west shelf stock of Australia’s endemic flatback turtle Natator depressus that estimates the long-term outcomes of a range of onshore and offshore conservation interventions. Analysis of the model shows that young adults contribute most to population growth (i.e. have highest expected future reproductive success); however, this is often the most difficult life stage to manipulate in the field. Observable outcomes of interventions are often delayed for many years, especially for on shore activities (e.g. protecting eggs and hatchlings), due to late age to maturity. The potential impact of warming-induced female bias on population dynamics was also investigated. Although such bias increases population growth rates in the short term, negative effects of the bias (e.g. reduced female mating success) and negative environmental effects (e.g. reduced survival rates, habitat loss) can lead to sustained declines. Population models can rapidly assess climate change and conservation impacts on turtle dynamics and can guide monitoring efforts for real-world application.
Suppression of microRNA-320 Induces Cerebral Protection Against Ischemia/Reperfusion Injury by Targeting HMGB1/NF-κB Axis
Authors: Liang S , Cao W , Zhuang Y , Zhang D , Du S , Shi H
Published: March 2024

MicroRNAs have been shown to potentially function in cerebral ischemia/reperfusion (IR) injury. This study aimed to examine the expression of microRNA-320 (miR-320) in cerebral IR injury and its involvement in cerebral mitochondrial function, oxidative stress, and inflammatory responses by targeting the HMGB1/
NF-κB axis. Sprague-Dawley rats were subjected to middle cerebral artery occlusion to simulate cerebral IR injury. The cerebral expression of miR-320 was assessed using qRT-PCR. Neurological function, cerebral infarct volume, mitochondrial function, oxidative stress, and inflammatory cytokines were evaluated using relevant methods, including staining, fluorometry, and ELISA. HMGB1 expression was analyzed through Western blotting. The levels of miR-320, HMGB1, neurological deficits, and cerebral infarction were significantly higher after IR induction. Intracerebral overexpression of miR-320 resulted in substantial neurological deficits, increased infarct volume, elevated levels of 8-isoprostane, NF-κBp65, TNF-α, IL-1β, ICAM-1, VCAM-1, and HMGB1 expression. It also promoted the loss of mitochondrial membrane potential and ROS levels while reducing MnSOD and GSH levels. Downregulation of miR-320 and inhibition of HMGB1 activity significantly reversed the outcomes of cerebral IR injury. MiR-320 plays a negative role in regulating cerebral inflammatory/oxidative reactions induced by IR injury by enhancing HMGB1 activity and modulating mitochondrial function.
Heat Stroke Induces Pyroptosis in Spermatogonia via the cGAS-STING Signaling Pathway
Authors: Deng Q-F , Liu Y , Chu H , Peng B , Liu X , Cao Y-S
Published: March 2024

To explore the mechanism whereby cGAS-STING pathway regulates the pyroptosis of cryptorchidism cells, with a view to finding a new strategy for clinically treating cryptorchidism-induced infertility. Spermatogonial GC-1 cells were heat stimulated to simulate the heat hurt microenvironment of cryptorchidism. The cell viability was assayed by CCK-8, and cellular DNA damage was detected by γ-H2AX immunofluo-rescence assay. Flow cytometry was employed to assess pyroptosis index, while western blot, ELISA and PCR were used to examine the expressions of pyroptosis-related proteins (Caspase-1, IL-1β, NLRP3) and cGAS-STING pathway proteins (cGAS, STING). After STING silencing by siRNA, the expressions of pyroptosis-related proteins were determined. Pyroptosis occurred after heat stimulation of cells. Morphological detection found cell swelling and karyopyknosis. According to the γ-H2AX immunofluorescence (IFA) assay, the endonuclear green fluorescence was significantly enhanced, the γ-H2AX content markedly increased, and the endonuclear DNA was damaged. Flow cytometry revealed a significant increase in pyroptosis index. Western blot and PCR assays showed that the expressions of intracellular pyrogenic proteins like Caspase-1, NLRP3 and GSDMD were elevated. The increased STING protein and gene expressions in cGAS-STING pathway suggested that the pathway was intracellularly activated. Silencing STING protein in cGAS-STING pathway led to significantly inhibited pyroptosis. These results indicate that cGAS-STING pathway plays an important role in heat stress-induced pyroptosis of spermatogonial cells. After heat stimulation of spermatogonial GC-1 cells, pyroptosis was induced and cGAS-STING pathway was activated. This study can further enrich and improve the molecular mechanism of cryptorchidism.
Az olvasás fejlesztése a drámapedagógia módszereivel
Authors: Balogh Renáta Tünde , Józsa Krisztián
Published: March 2024

Students' reading comprehension difficulties are a serious challenge that we encounter every day both inside and outside the school environment. Several comprehensive studies (e.g., the Hungarian National Assessment of Basic Competencies – NABC, and the Program for International Student Assessment - PISA) have shed light on that problem and its seriousness. The improvement of reading competence in school is, therefore, a particularly important task. And the methods that improve reading competence play a crucially important role. One such method is drama-based pedagogy. The purpose of this study is to emphasize how the methods of drama-based pedagogy can be used to help the development of reading comprehension. The study highlights that the use of drama-based pedagogy methods strengthens both the motivation and the reading competence. The described drama-based pedagogic methods and games can be used not only within various school lessons but also beyond the classroom setting.
Folklorizáció és refolklorizáció
Authors: Gombos Péter
Published: March 2024

Domokos Mariann (sajtó alá rend.): Grimm-mesék magyar ponyvákon (1850–1900). Budapest: Reciti Kiadó, 2022, 496 p.
Dynamics of changes in the microflora of the oral fluid after the removal of lower wisdom teeth against the background of antibiotic therapy and phage therapy
Authors: Oleinik N. A. , Fomichev E. V. , Yakovlev A. T. , Kirpichnikov M. V. , Khimich I. V. , Madatkhanova A. A. , Zlenko A. S. , Serbin A. S. , Aleshanov K. A.
Published: March 2024

The purpose of our study was to study the effectiveness of the drug «Sextafag» as a therapeutic and prophylactic agent after the removal of impacted lower third molars.

Recently, there has been a large number of patients with antibiotic resistance, so it is to find an alternative to traditional antibiotic therapy. This article examines the qualitative and quantitative composition of the oral microbiota after removal of impacted lower wisdom teeth. We studied the dynamics of changes in microflora during antibacterial treatment and phage therapy. The data obtained confirm the clinical and bacteriological effectiveness of oral phage therapy for inflammatory diseases in dental practice and can serve as the basis for the development of a new algorithm for the use of bacteriophages in the treatment of purulent-inflammatory diseases of the oral cavity.
Infectious and inflammatory factor of resorption of peri-implant tissues. Literature review
Authors: Karaev R. K. , Khromenkova K. V. , Taranova N. Y. , Khumgaeva H. R. , Dymnikov A. B. , Belous V. K. , Gyulmalyan R. R.
Published: March 2024

Today, in clinical practice, the loss of marginal bone mass around dental implants in the early stages after the installation and opening of the implant is increasingly common. Early clinical publications suggested that this bone loss occurred during the first year of prosthetics. Thus, numerous attempts have been made to minimize or eliminate such bone loss. However, the timing and cause of bone loss are not always obvious. The purpose of this review was to analyze data on marginal bone loss around dental implants in terms of biological implications to help understand changes in marginal bone around dental implants. One hypothesis for bone loss around dental implants has been related with infected interface between the implant and abutment. This review article shows that bone loss of 1.5 to 2.0 mm occurred around implant-abutment junctions at the bone level. The bone loss level was correlated with implant-abatement interface size. Recent publications indicate that such dental implant systems with large prosthetic-implant gaps may cause peri-implantitis with further implant loss.
Results of application of the IRIS dental implants with the surface modified by the method of plasma electrolytic oxidation
Authors: Murzabekov A. I. , Muraev A. A. , Mukhametshin R. F. , Kim E. V. , Ivanov S. Yu. , Klimenkov V. A.
Published: March 2024

Surface modifications of dental implants to provide optimal conditions for osseointegration remains an urgent task in modern dental implantology. A few publications demonstrate that the surface of the dental implants modified by plasma electrolytic oxidation (PEO) possess a combination of several important features that promote osteointegration: optimal micro roughness within 1-7 microns, high chemical purity, and mechanical strength [8,20].

The aim. To evaluate the clinical efficacy of IRIS implants with a new surface modified by the PEO method (hereinafter referred to as IRIS PEO).

Materials and methods. Based on the Patrice Lumumba RUDN Medical Center and the Center of Medical Care for Dental Diseases, FGBU «Central Clinical Hospital with Polyclinic» of the Presidential Affairs Department of the Russian Federation, 60 patients aged 27 to 52 years with partial tooth loss were examined and treated. The patients received 1 IRIS-PEO implant each on the upper or lower jaw. All implants were placed with the force from 35 to 50 N/cm2, with gingiva shapers. Prosthetics were performed after 2 months on the lower jaw and after 4 months on the upper jaw. Before taking impressions, the stability of implants was measured using the Penguin RFA (Integration Diagnostic Sweden AB, Sweden). One year after prosthetics, the neck resorption of the implants was evaluated.

Results. Because of the treatment, all prosthetic constructions met the functional and aesthetic requirements. The stability indices of implants in ISQ units on the upper jaw averaged 75±3.4, on the lower jaw 79±2.4. Bone resorption in the implants’ neck area 1 year after the end of the treatment was not observed. The pilot clinical study of the IRIS-PEO implants allowed to optimize the terms of rehabilitation and to obtain high functional and esthetic result in the treatment of patients with tooth loss.

Conclusions. Pilot clinical implementation of the implants of the IRIS system with the surface modified by plasma electrolytic oxidation demonstrated the possibility of open management of the implants with the gingiva shaper, to carry out prosthetics in 2 months on the lower jaw and 4 months on the upper jaw. No neck resorption was observed one year after prosthetics.
Harmonizing Arbitration: Clarity, Consistency, and Consent in the Application of Ex Aequo Et Bono
Authors: Hadylaya Michael Herdi
Published: March 2024

This article delves into the intricate dynamics surrounding the application of the ex aequo et bono principle in arbitration, addressing concerns arising from potential procedural challenges and deviations from justice principles amid the escalating popularity of arbitration. The study intricately navigates the legal complexities of this principle, centering on the interpretation of Article 56 of Law 30/1999. Specifically, it scrutinizes whether the article mandates parties' consent for the arbitrator to decide based on ex aequo et bono. Employing a normative legal research approach and utilizing legal hermeneutics with a structuralist focus, the research analyzes the interplay of written agreements, tacit understandings, and standard practices in arbitration. The article underscores the critical role of precise protocols and unequivocal agreements in safeguarding the integrity and effectiveness of the arbitration process. It highlights the paramount need for clarity and consistency in legal provisions, advocating for collaborative efforts between legal authorities and arbitration institutions. This collaboration is essential for aligning statutory provisions and arbitration rules, ultimately fortifying a robust and dependable framework for the equitable resolution of conflicts. In conclusion, the article calls for a harmonized approach to address inconsistencies, enhance the legitimacy of arbitration decisions, and foster trust in the arbitration process. By exploring these challenges, the article contributes to the ongoing discourse of optimizing arbitration as a fair and efficient means of resolving international disputes.
A CRITICAL STUDY ON FEMALE COPARCENARY: ITS DEVOLUTION IN RELATION & WITH RESPECT TO THE HINDU SUCCESSION (AMENDMENT) ACT, 2005 AND JUDICIAL INTERPRETATION
Authors: Pendem Suhruth Srivatsav
Published: March 2024

Hindu Succession (Amendment) Act, 2005 (‘HSAA’) was enacted to grant the same rights to daughters on their fathers' ancestors' property by conferring them the status of coparceners. Coparcenary is a special form of joint family property, where only the male lineal descendants of a common ancestor can inherit the property by birth before the 2005 Amendment Act. The HSAA aimed to remove the gender discrimination inherent in the Hindu law of succession and bring it into compliance with the constitutional need for equality. However, the implementation and interpretation of the HSAA have raised several issues and challenges, For instance, the 2005 Hindu Succession (Amendment) Act's caveat to section 6(1)(c)'s constitutionality, the retrospective effect of the amendment, the impact of partition and testamentary disposition on the rights of daughters, the applicability of the amendment to different schools and sects of Hindu law, and the effect of marital status and adoption on coparcenary rights. This paper critically examines some of these major issues and challenges, by analyzing the relevant provisions of the HSAA, the judicial decisions interpreting them, and the academic literature on the subject. The paper also suggests some possible solutions and recommendations to address the gaps and ambiguities in the law and ensure its effective enforcement. The paper concludes that while the HSAA is a progressive and landmark legislation that has empowered women in matters of inheritance, there is still scope for improvement and clarification in its provisions and interpretation, to achieve the goal of gender justice and social reform.
Results of Dental Implant Usage in Patients with Oral Lichen Plans: A Comparative Cohort Study at the Central Hospital of Iran Oil ministry - A Multidisciplinary Study
Authors: Karimi Sarah , Karimi Kowsar , Sadighha Afshin
Published: March 2024

Objective: This study aimed to determine the success rate of dental implant usage in patients with oral lichen plans (OLP) and compare the outcomes with a control group free of the disease, matched in terms of background factors. The collaborative effort between dermatology and dental prosthetics departments at the Central Hospital of Tehran Oil Company facilitated the execution of this study.Research Methodology: A total of 17 patients with oral lichen plans and 21 healthy individuals meeting the study criteria participated. A total of 59 implants were used in the lichen plans group, and 58 implants were employed in the control group. The study spanned from March 2018 to April 2020. Pain levels and wound healing post procedure were recorded and compared between the two groups. The follow-up period was 24.7 ± 7.3 months for the lichen plans group and 23.7 ± 8.1 months for the control group. Radiographic and clinical aspects were documented to assess implant success and relevant variables.Results: The success rate of implant usage in the lichen plans group was 100%, while in the control group, it was 95%. Postoperative complications in both groups were recorded and compared. The frequency of peri-implant mucositis (PIM) was 43% in the lichen plans group and 56% in the control group. Peri-implantitis occurred in 15% of the control group and 23% in the lichen plans group, with no statistically significant difference observed.Conclusion: Our results showed that dental implants could be used safely in OLP if placed and managed by experienced staff.
Hybrid data driven/thermal simulation model for comfort assessment
Authors: Barbedienne Romain , Ouerk Sara Yasmine , Yagoubi Mouadh , Bouia Hassan , Kaemmerlen Aurélie , Charrier Benoit
Published: March 2024

Machine learning models improve the speed and quality of physical models. However, they require a large amount of data, which is often difficult and costly to acquire. Predicting thermal comfort, for example, requires a controlled environment, with participants presenting various characteristics (age, gender, ...). This paper proposes a method for hybridizing real data with simulated data for thermal comfort prediction. The simulations are performed using Modelica Language. A benchmarking study is realized to compare different machine learning methods. Obtained results look very promising with an F1 score of 0.999 obtained using the random forest model.
Modeling and Simulation of the Hydrogen Value Chain with ThermoSysPro and Modelica
Authors: Jimenez Sebastian Vallejo , Mesa-Moles Luis Corona , Faille Damien , Irofti Dina
Published: March 2024

Hydrogen will play a key role in the global energy transition if we are able to produce it with low-carbon emissions. However, clean hydrogen production today is mostly limited to demonstration projects ranging from 2 up to 20 MW. Modeling the way low-carbon hydrogen is produced, stored and used will allow us to significantly improve our understanding of how clean hydrogen could be produced and thus increase the production efficiency. In this paper, we show that the newest version of ThermoSysPro (TSP), an open-source Modelica library for modeling energy systems, provides a suitable framework to model and simulate the hydrogen production, storage and consumption. The model presented in this paper contains three electrolyzers, a storage station and a vehicle station. We present how the model was built, which components were adapted and how, and show that its simulation can be useful in the design phase, as well as for diagnosis purposes.
Dialectic Mechanics: Extension for Real-Time Simulation
Authors: Oldemeyer Carsten , Zimmer Dirk
Published: March 2024

Dialectic mechanics was introduced as an approximative modeling alternative to the classic Newtonian formulation of mechanics. It allows for additional freedom in placing a systems eigenvalues to facilitate simulation of systems, that are not suitable for most integration methods, when modeled according to the classic approach. The original idea of dialectic mechanics enables the suppression of high frequencies, but may still yield very stiff systems unsuitable for explicit integration methods. An additional term is added to enable real-time simulation with explicit methods. The goal of this paper is an analysis of the resulting equations and a comparison to the classic Newtonian formulation, aiming for an understanding of which applications most benefit from using dialectic mechanics.
Dynamic Modeling and Experimental Validation of Dishwasher with Heat Pump System
Authors: Şeren Erdoğan Mert , İpek Mutlu
Published: March 2024

Integration of heat pump systems with conventional dishwashers or household water heaters using electric heaters offers a promising solution to significantly reduce expected energy consumption. In this study, a comprehensive approach was undertaken to develop sub-models for each component of the heat pump dishwasher. These sub-models were subsequently integrated to form a complete cycle model of the heat pump dishwasher. The specific components modeled included the compressor, evaporator, condenser, and capillary tube. Furthermore, an algorithm was devised to ensure the proper functioning of all the individual models, in accordance with the operational principles of the dishwasher. To validate the model, the temperature variation within the dishwasher during the heating and cooling phases was compared against experimental data. The maximum deviation observed in the cabinet temperature of the dishwasher was found to be 1 °C, with a corresponding deviation of 0.5 minutes in the cycle duration. Moreover, the maximum deviation in power consumption amounted to 2.4%, while a maximum deviation of 2.9% was noted in energy consumption. The results obtained from the model closely aligned with the experimental outcomes, thereby confirming its accuracy and reliability.
Object-Oriented Formulation and Simulation of Models using Linear Implicit Equilibrium Dynamics
Authors: Zimmer Dirk
Published: March 2024

New robust and yet powerful Modelica libraries as the DLR ThermoFluid Stream library or the introduction of dialectic mechanics use a special modeling approach that uses linear implicit equilibrium dynamics. In this paper, we study the basic motivation of this approach, its benefits and drawbacks before finally showing how to get from the models to applicable simulation code.
Presentation, Validation and Application of the EnergyProcess Library
Authors: Nepveu Francois , Mathonniere Sylvain , Lamaison Nicolas , Enee Gael
Published: March 2024

Green production of hydrogen and its derivatives is becoming a cornerstone of industry decarbonation. Apart from the technological development point of view, optimizing the overall production chains dynamically is essential for the competitiveness of these systems. In this paper, we describe how we built, validated and used a Modelica-based library dedicated to the simulation and optimization of energy process for the production of green molecules. Especially, models of complex media, salt cavity hydrogen storage and electrolysis module are presented. An example application shows that the models of the library are particularly handy for the modeling of a 5MW electrolysis module, which is used for the calibration of an optimization model.
Modelica 3.6 - Changes, Benefits and Implementation
Authors: Olsson Hans
Published: March 2024

The latest release of the Modelica Language Specification version 3.6 brings several benefits to users, and this paper will discuss the changes and the benefits for the clearer parameter defaults, clearer start-value priority, selective model extension, and multi-lingual support. The benefits only occur when the features are implemented in Modelica tools, and to facilitate that, the paper will discuss the design choices when implementing the new standard in Dymola 2023x Refresh 1 and 3DEXPERIENCE 2023x FD03.
Design ideas behind Bioprocess Library for Modelica
Authors: Axelsson Jan Peter
Published: March 2024

In this paper I describe key design ideas behind the Bioprocess Library. The library facilitates modelling and simulation of bioprocesses mainly for the pharmaceutical industry. It borrows some structures from MSL Fluid and Media but differs in central design choices and is much simpler. A typical application consists of both configuration of standard components from the library and tailor-made Modelica code defining the application dependent medium and bioprocess reactions. The guiding idea is that configuration of components works well for defining the setup of process equipment for a production line, while more flexibility is needed for modelling bioprocess reactions and therefore equations are used. Another central design idea is that components of equipment are centrally adapted to the medium used. One could say that the library is parameterised with the application media and reaction models. The focus of this paper is structural aspects of the library rather than the content.
Object-Oriented Modelling of Flexible Cables based on Absolute Nodal Coordinate Formulation
Authors: Wu Jianchen , Zhang Baokun , Liang Dedong , Guo Yujie , Chen Lu , Ding Ji , Zhou Fanli
Published: March 2024

Cable-pulley system consists of several segments of cables, winches, and pulleys, which is used in a wide range of engineering applications such as lifting equipment and pulley systems, however its dynamics simulation has been a tough issue in the Modelica community. The absolute nodal coordinate formulation (ANCF) uses global displacements and slopes at nodes to describe the geometry of the deformed body, which allows the derivation of constant mass matrices and zero-valued quadratic velocity dependent centrifugal and Coriolis forces, demonstrating its powerful capacity to model flexible multi-body systems for nearly two decades. This paper presents an object-oriented approach to model cable-pulley system, where flexible cables are discretized using ANCF cable elements. It is compatible with the Modelica Multibody Library by using a unified Frame interface and enables coupled analysis of cables and rigid bodies. The paper provides a rich set of application examples showing the ease and efficiency of the Modelica-based component drag-and-drop modelling way for modelling cable-pulley system.