bluuebunny/crossref_metadata_2025_split huggingface dataset:
Overview on GRS CFD activities related to containment applications
Authors: Stewering Jörn , Schramm Berthold , Beck Sara 
Published: March 2024

Abstract
In the case of a severe accident in a nuclear power plant, hydrogen could be produced in the superheated reactor core. The hydrogen could flow through a leak in the primary circuit into the containment and a hydrogen deflagration could occur. A consequence of such an event was the Fukushima accident in 2011. For the analysis of such events, different phenomena in the reactor containment must be simulated correctly such as the distribution of steam and hydrogen, steam condensation, thermal radiation, conjugated heat transfer, hydrogen recombination and deflagration. The application of Computational Fluid Dynamics (CFD) methods for such analyses is becoming more relevant. Selected models needed to simulate the different containment phenomena with OpenFOAM are currently being tested, validated or improved and further developed by a network of German research institutes and universities.
A Simulation and Empirical Study of the Maximum Likelihood Estimator for Stochastic Volatility Jump-Diffusion Models
Authors: Bégin Jean-François , Boudreault Mathieu 
Published: March 2024

Abstract
We investigate the behaviour of the maximum likelihood estimator (MLE) for stochastic volatility jump-diffusion models commonly used in financial risk management. A simulation study shows the practical conditions under which the MLE behaves according to theory. In an extensive empirical study based on nine indices and more than 6000 individual stocks, we nonetheless find that the MLE is unable to replicate key higher moments. We then introduce a moment-targeted MLE – robust to model misspecification – and revisit both simulation and empirical studies. We find it performs better than the MLE, improving the management of financial risk.
Comment promouvoir la consommation de protéines végétales : Une revue de la littérature de presse
Authors: Gaudreau Coralie , Guillaumie Laurence , Simon Emmanuelle , Vézina-Im Lydi-Anne , Boiral Olivier 
Published: March 2024

La consommation de protéines végétales présente plusieurs bénéfices sur le plan de la santé, de l’environnement et du développement du secteur agro-alimentaire. Malgré les avantages liés à la consommation de protéines végétales, la consommation de viande demeure souvent privilégiée. Cet article présente une revue de la littérature de presse visant à répertorier les interventions de promotion de la consommation de protéines végétales mises en place au Canada et dans des pays européens francophones. L’identification des documents s’est faite à partir de la banque de données Eureka pour les articles de journaux de quotidiens francophones en provenance du Canada et d’Europe et sur le moteur de recherche Google Actualités. Les articles publiés entre le 1er janvier 2015 et le 11 mai 2020 ont été retenus. Au total, 49 articles ont été inclus dans l’étude. Six types d’intervention ont été recensés (sensibilisation, conférences, législation, formation, partenariats/programmes de reconnaissance et offre d’un repas végétarien en restauration collective). L’intervention la plus populaire était l’offre de repas végétariens en restauration collective. Les barrières à l’implantation de ces interventions étaient souvent d’ordre organisationnel (ex : manque de temps), financier, matériel et culturel. Les forces des interventions impliquaient généralement le caractère participatif et volontaire du public cible et l’inclusion de diverses parties prenantes. Cette revue de la littérature de presse peut orienter les acteur.trices œuvrant dans le domaine de la nutrition afin de favoriser la mise en place d’actions de promotion de la consommation de protéines végétales.
Industrial meat in Canada, growth promoters and the struggle over international food standards
Authors: Smythe Elizabeth Ann 
Published: March 2024

This article focuses on differing national regulations and standards regarding how meat for human consumption is produced and what is permissible in that production process. Attempts to harmonize these regulations at the global level to facilitate international trade have proven to be challenging. Such harmonization of regulations is especially important to countries exporting meat, such as Canada. The conflict at the global level reflects a range of differing trade interests and values about what meat is and how it should be produced. One area of disagreement is over the extent to which methods of growth promotion in animals using technology, particularly drugs, is acceptable and safe in terms of human consumption. Canada has taken the position that they are acceptable and safe. Using two case studies of regulations related to the most recent set of beta agonist drugs, ractopamine and zilpatrol, fed to livestock to promote growth, I examine the underlying sources of these conflicts and the extent to which they reflect the interests of various actors and the forms of power they may employ to try to shape global standards at the Codex Alimentarius and the view of what is acceptable meat.
Definitions and assessments of recovery from gambling disorder: A scoping review
Authors: Mansueto Agathe , Challet-Bouju Gaëlle , Hardouin Jean-Benoit , Grall-Bronnec Marie 
Published: March 2024

AbstractBackground and aimsWhile the concept of recovery is receiving increasing attention in the context of gambling disorder (GD), no consensus has yet been reached regarding its definition. This scoping review aims to map the literature on GD recovery, identify gaps, and provide insights for a more holistic and patient-centred perspective.MethodsA systematic search of three databases was conducted (PubMed, PsycINFO, and ScienceDirect). Based on the method by which the results of these studies were produced, the studies included were sorted into four categories (quantitative, instrument validation, qualitative, and mixed studies) and subsequently examined using conceptual analysis.ResultsOne hundred thirteen articles were included in this research after the screening process. In the quantitative and instrument validation studies, recovery was defined or operationalized in terms of abstinence, the absence of a GD diagnosis, or mild GD severity, or by reference to treatment outcomes or controlled gambling. A meta-synthesis of the results of the qualitative studies revealed four core features of recovery (insight, empowerment and commitment, wellbeing enhancement, and reconsideration of the issue of relapse).DiscussionDiscrepancies in definitions, outcomes, and variables used were evident across studies. Additionally, the quantitative and standardized approaches employed in most studies exhibited severe limitations with regard to defining recovery from the subjective and multidimensional perspectives of people recovering from GD.ConclusionsThis lack of definitional clarity emphasizes the necessity for further qualitative research. This research should encompass multiple stakeholder perspectives to develop a working definition promoting recovery from a holistic, patient-centred, and tailored approach.
Ketamine and epigenetic processes in depression, intersection between serotonergic and glutamatergic pathways
Authors: Nepton Arghavan , Farahani Hesam , Williams Monnica T. , Booij Linda , Faber Sonya C. 
Published: March 2024

AbstractBackgroundHypotheses surrounding the etiology of depressive disorders encompass a wide range of biological changes that can occur in a depressed individual, from gene variations to epigenetic modifications and not only serotonergic mechanisms. Once again, the therapy response of the patient to antidepressants is connected to modifications in the epigenetic regulation of genes within the serotonergic system. The persistence of depressive symptoms points to the possibility that stable molecular adaptations in the brain, particularly at the epigenetic level, may be involved.MethodsNarrative review to first, discuss the historical evidence behind how serotonin (5-hydroxytryptamine, 5-HT) signaling and its associated actors are involved in various biological processes and second, examine the role of ketamine as one of the newer treatments for depression.ResultsThere is increasing evidence that responses to psychotherapy for mood disorders are correlated with epigenetic alterations. Although therapy response appears to be associated with epigenetic changes in genes regulating the serotonergic system, there are multiple lines of research that provide additional data implicating epigenetic alterations in the glutamatergic system. Also, the epigenetic regulation of target genes along the HPA axis are becoming more intriguing in linking mood disorders with environmental stressors, and warrant a closer look. Recent research suggests that ketamine's antidepressant effects may be linked to epigenetic alterations. Considering the multiple studies linking BDNF with depression, further exploration of its relation with ketamine in the context of epigenetic signaling is warranted.ConclusionUnderstanding how and to what extent epigenetic mechanisms change gene expression and how these changes are influenced by environmental stressors may eventually allow mental health professionals to better understand the biological basis of depression as well as to gauge the efficacy, onset, durability and duration of therapies to treat mood disorders. Moreover, understanding the relation between serotonergic neurotransmission and epigenetic mechanisms of how these may be modified by ketamine should lead us to a greater knowledge of their therapeutic potential.
Influence of solvent quality on the swelling and shear modulus of polymer gels chemically cross-linked in solution
Authors: Douglas Jack F. , Horkay Ferenc 
Published: March 2024

AbstractThe effect of temperature (T) is studied on the swelling of model poly(vinyl acetate) (PVAc) gels in isopropyl alcohol. The theta temperature Θ of these gels, at which the second osmotic virial coefficient A2 vanishes, is close to that of the corresponding high molecular mass polymer solution without cross-links so that solvent quality may be defined in the same way as the corresponding precursor polymer solution. We quantified the swelling and deswelling of PVAc gels relative to their size at the theta temperature, and also determined the effect of T on the shear modulus of these gels. It was found that both swelling and deswelling data could be reduced to a universal scaling equation of the same general form as derived from renormalization group (RG) theory for flexible linear polymer chains in solutions.
Graphical abstract
Variaton of the volumetric swelling factor as a function of the reduced temperature for PVAc gels swollen in isopropyl alcohol.
Dental versus zygomatic implants in the treatment of maxillectomy: a finite element analysis
Authors: Leblebicioğlu Kurtuluş İkbal , Kilic Duygu , Kilic Kerem 
Published: March 2024

Abstract

Purpose
This study analyzed the stress distributions on zygomatic and dental implants placed in the zygomatic bone, supporting bones, and superstructures under occlusal loads after maxillary reconstruction with obturator prostheses.

Materials and Methods
12 scenarios of three-dimensional finite element models were constructed based on computed tomography scans of a patient who had hemimaxillectomy. Two obturator prostheses were analyzed for each model. A total force of 600 N was applied from the palatal to buccal bones at an angle of 45°. The maximum and minimum principal stress values for bone and also the von Misses stress values for dental implants and prostheses were calculated.

Results
When zygomatic implants were applied to the defect area, the maximum principal stresses were similar in intensity to the other models; however, the minimum principal stress values were higher than in scenarios without zygomatic implants. In models that used zygomatic implants in the defect area, von Misses stress levels were significantly higher in zygomatic implants than in dental implants. In scenarios where the prosthesis was supported by tissue in the non-defect area, the maximum and minimum principal stress values on cortical bone were higher than in scenarios where implants were applied to both defect and non-defect areas.

Conclusions
In patients who lack an alveolar crest after maxillectomy, reduced stress on the zygomatic bone is expected if a custom bar-retained prosthesis is placed on the dental implant. The stress was higher on zygomatic implants without alveolar crest support than on dental implants.
perception of clinical professionals on the use of telemedicine by videoconference in the Portuguese private health system
Authors: Woss Joana Lucilia 
Published: March 2024

This article aims to discuss the use of telemedicine in doctor-patient communication in the consultations context and aims to assess the perception of clinical professionals from Portuguese private hospitals about the use of telemedicine by videoconferencing. We used the unified theory of acceptance and use of technology 2 (UTAUT 2) to reflect on the topic and analyze the research results. We applied deepened semi-structured interviews to nine doctors, from seven different specialties, from private hospitals, which provide consultations through videoconferencing, namely Hospital da Luz and Trofa Saúde. The interviews were conducted in May and June 2022. The participants referred to telemedicine as a complementary tool to face-to-face consultations, with occurrence limitations according to the medical specialty and pathology. We concluded that the tool, along with technological developments that support it, in the future will become part of medical consultations, and the high motivation of health professionals is necessary for the successful implementation of these tools. The contribution of this study is showing the relevance of the professionals' motivation for the adoption of videoconferencing technology tools.
Model Starlet, suatu Usulan untuk Mitigasi Bencana Longsor dengan Pendekatan Genetika Wilayah (Studi Kasus: Longsoran Citatah, Padalarang, Jawa)
Authors: Zakaria Z. 
Published: March 2024

DOI: 10.17014/ijog.v5i2.95Scientists, governments, employers, and communities have the same view on landslide disasters, that is the need to cut losses and to avoid loss of men. To deal with landslide disasters, an understanding of an area is required, especially for mitigation ( limitations and stabilization). To handle the slope - prone to landslides, an integrated approach is needed. A stabilization and integrated design (Starlet model) is a proposal in the handling landslide - prone slopes the integration among: (1) mapping system, (2) slope stability analysis, (3) simulation design of stable slope, and (4) guidance with environmental management along with monitoring. In addition, this also requires the participation of scientists, government officials, communities, and employers in facing these avalanche disasters. Citatah landslides formed a system with the largest to the smallest sizes that is a unity. The landslide in the western part of Pasir Pabeasan (Pasir Pabeasan - Citatah) is a complex one with the type of lateral spread. There are other landslides in the surrounding area, i.e: rock fall, rock toppling, slump, debris slide, and slide. The landslide shows the system and dimensions of landslide from the smallest to the largest one. Slopes in 22.29o to 44.28o should be noted because in general they are critical. They need stabilizations. Landslide area mapping system should consider the genetic region. A terrain genetic map will show areas of terrain genetic unit (TGU) which strongly supports the zoning maps of land movements. Based on terraingenetic unit (TGU), the Citatah landslides are common at symbol TGU 2331, 2232, locations between 2231 and 2331, locations between 2232 and 2331, and locations between 2233 and 2331, around the intersection of two faults (Cimandiri thrust fault cut by dextral strike - slip fault).
Indonesian Landforms and Plate Tectonics
Authors: Verstappen Herman Th. 
Published: March 2024

DOI: 10.17014/ijog.v5i3.103The horizontal configuration and vertical dimension of the landforms occurring in the tectonically unstable parts of Indonesia were resulted in the first place from plate tectonics. Most of them date from the Quaternary and endogenous forces are ongoing. Three major plates – the northward moving Indo-Australian Plate, the south-eastward moving SE-Asian Plate and the westward moving Pacific Plate - meet at a plate triple-junction situated in the south of New Guinea’s Bird’s Head. The narrow North-Moluccan plate is interposed between the Asia and Pacific. It tapers out northward in the Philippine Mobile Belt and is gradually disappearing. The greatest relief amplitudes occur near the plate boundaries: deep ocean trenches are associated with subduction zones and mountain ranges with collision belts. The landforms of the more stable areas of the plates date back to a more remote past and, where emerged, have a more subdued relief that is in the first place related to the resistance of the rocks to humid tropical weathering Rising mountain ranges and emerging island arcs are subjected to rapid humid-tropical river erosions and mass movements. The erosion products accumulate in adjacent sedimentary basins where their increasing weight causes subsidence by gravity and isostatic compensations. Living and raised coral reefs, volcanoes, and fault scarps are important geomorphic indicators of active plate tectonics. Compartmental faults may strongly affect island arcs stretching perpendicular to the plate movement. This is the case on Java. Transcurrent faults and related pull-apart basins are a leading factor where plates meet at an angle, such as on Sumatra. The most complicated situation exists near the triple-junction and in the Moluccas. Modern research methods, such as GPS measurements of plate movements and absolute dating of volcanic outbursts and raised coral reefs are important tools. The mega-landforms resulting from the collision of India with the Asian continent, around 50.0 my. ago, and the final collision of Australia with the Pacific, about 5.0 my. ago, also had an important impact on geomorphologic processes and the natural environment of SE-Asia through changes of the monsoonal wind system in the region and of the oceanic thermo-haline circulation in eastern Indonesia between the Pacific and the Indian ocean. In addition the landforms of the region were, of course, affected by the Quaternary global climatic fluctuations and sea level changes.
Geothermal Prospect Selection Using Analytical Hierarchy Process (AHP): A Case Study in Sulawesi Island, Indonesia
Authors: Suryantini Suryantini , Wibowo H. 
Published: March 2024

DOI: 10.17014/ijog.v5i4.107Analytical Hierarchy Process (AHP) is a Multi Criterion Decision Making (MCDM) Technique. It can handle any complex, multicriterion, and multiperson problems. In AHP, the problems are decomposed into a hierarchically structure and are given the weights according to its importance. Thus, the strength with which one alternative dominates another with respect to a given criterion can be identified. The output is a priority ranking indicating the overall preference for each decision alternative. This paper describes the application of AHP to select a geothermal prospect in Sulawesi Island to be developed in the near future. The alternatives consist of three geothermal prospects. i.e., Suwawa, Pulu, and Marana. Three major criteria are used and applied into those three prospects: Geoscience, Infrastructure, and Social-culture aspects. Under each of these major criteria, there are several subcriteria. Geoscience criterion which consists of Resources, Geothermal System, and Geological Risk Subcriteria is given the highest weight with the assumption that if resources are large and can be developed commercially, then there is no reason not to be exploited; the technology and other infrastructure aspects are no longer an obstacle. The result shows that Suwawa Prospect is the best option to be developed in the near future. The second option or rank is Marana Prospect, and the third is Pulu Prospect. This result is in agreement with the future plan of the development of Sulawesi Island. If the regulation and plan of development were suddenly changed, the goal of this AHP might not be appropriate anymore, and the second or third option might replace the first rank. The benefits of using AHP are (1) the facts and reasons behind the decision are well documented, (2) able to handle quantitative and qualitative inputs, (3) able to accommodate environmental, social and other influences, and (4) able to handle subjective judgments of individuals. Lessons learned from AHP application for geothermal prospect selection could be extended into multi criterion decision making at a group level.
Modelling of Magma Density and Viscocity Changes and Their Influences towards the Characteristic of Kelud Volcano Eruption
Authors: Humaida Hanik , Brotopuspito K. S. , Pranowo H. D. , Narsito Narsito 
Published: March 2024

DOI: 10.17014/ijog.v6i4.129The effusive eruption of Kelud Volcano in 2007 was different from the previous ones, which in general were more explosive. Among others, density and viscosity are factors that determine the type of eruption. Therefore, the study on the difference of the recent eruption style based on the density and viscosity of magma was carried out. The method used in this study was based on geochemical analysis of the rock and then a modeling was established by using the above parameter. The study on the explosive eruption was emphasized on the data of 1990 eruption, whereas the effusive eruption was based on the data of 2007 eruption. The result shows that the magma viscosity of Kelud Volcano depend on the H O concentration as one of the volatile compound in magma, and temperature which gives the exponential equation. The higher the increase of H O content the smaller the value of its viscosity as well as the higher the temperature. The H O content in silica fluid can break the polymer bond of the silica fluid, because a shorter polymer will produce a lower viscosity. The density of the silica content of Kelud Volcano ranges between andesitic and basaltic types, but andesite is more likely. The fluid density of the material of 1990 eruption is different from 2007 eruption. Compared to the 2007, the 1990 eruption material gave a lower density value in its silica fluid than that of the 2007 one. The low density value of the silica fluid of the 1990 eruption material was reflecting a more acid magma. The level of density value of silica fluid depends on its temperature. At the temperature of 1073 K the density of the 1990 Kelud magma is 2810 kg/m3 and the 2007 magma is 2818 kg/m3, whereas at a temperature of 1673 K, the density is 2672 kg/m3 and 2682 kg/m3 of the 1990 and 2007 eruptions respectively. A modeling by using an ideal gas law of Henry’s Law illustrated that the ascent of Kelud’s magma to the surface may cause changes in it’s physical properties. The evolution of the flow pressure in the conduit is characterized by three different areas; based of the conduit until the pressure is saturated, then at the level between release and fragmentation, and then the level above the fragmentation, that implicates the decrease in the wall friction.