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Park, Young Jae, H. K. Kim, Yoon Suk Chang, Jae Boong Choi, and Young Jin Kim. "Application of Grid-Based Approach for Auto Mesh Generation of Vacuum Chamber." Key Engineering Materials 306-308 (March 2006): 631–36. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.631.
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A seamless analysis of complex geometry is one of greatly interesting topic. However, there are still gaps between the industrial applications and fundamental academic studies owing to time consuming modeling process. To resolve this problem, an auto mesh generation program based on grid-based approach has been developed for IT-product in the present study. At first, base mesh and skin mesh are generated using the information of entities which extracted from IGES file. Secondly the provisional core mesh with rugged boundary geometry is constructed by superimposing the skin mesh as well as the base mesh generated from the CAD model. Finally, the positions of boundary nodes are adjusted to make a qualified mesh by adapting node modification and smoothing techniques. Also, for the sake of verification of mesh quality, the hexahedral auto mesh constructed by the program is compared with the corresponding tetrahedral free mesh and hexahedral mapped mesh through static finite element analyses. Thereby, it is anticipated that the grid-based approach can be used as a promising pre-processor for integrity evaluation of various IT-products.
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Park, Young Jae, Byung Sun Kim, Han Ok Ko, Yoon Suk Chang, Jae Boong Choi, Young Jin Kim, Joon Seong Lee, and C. S. Kim. "Application of Modified Grid-Based Approach for Auto Mesh Generation of IT-Related Products." Key Engineering Materials 321-323 (October 2006): 12–15. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.12.
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A seamless analysis of IT-related products, such as cellular phone, LCD monitor and note PC etc., which are thin and complex geometry is one of great concerns in product design. However, there is a considerable amount of gap between the industrial application and fundamental academic studies due to a time consuming detailed mesh generation. In order to settle the bottleneck, an auto mesh generation program based on a modified grid-based approach is proposed in this paper. At first, base mesh and skin mesh were generated using informations on entities which extracted from an IGES (Initial Graphics Exchange Specification) file. Secondly, a provisional core mesh with a rough boundary geometry was constructed by superimposing the skin mesh into the base mesh generated from CAD model. And then, positions of boundary nodes were redistributed to delineate exact geometry of the provisional mesh. Finally, good qualified meshes were constructed by moving the positions of the nodes and splitting elements along boundary edges. In conclusion, it is anticipated that the developed program can be used as a promising pre-processor for static or dynamic analysis of various IT-related products.
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Condrea, Alexander, Itamar Netzer, Shimon Ginath, Joseph Eldor-Itskovitz, Abraham Golan, and Lior Lowenstein. "Is Mesh Becoming More Popular? Dilemmas in Urogynecology: A National Survey." Obstetrics and Gynecology International 2012 (2012): 1–4. http://dx.doi.org/10.1155/2012/672356.
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The use of vaginal mesh in pelvic organ prolapse (POP) repair surgery has become more common in recent years. The purpose of the current study was to evaluate the common practice of Israeli urogynecologists, and to determine whether surgical practice has changed over the last two years.Methods. In 2009 and again in 2011, a survey was mailed to all urogynecologists affiliated with an academic institute in Israel. The survey consisted of 7 Likert-scale items and 3 open questions; the latter inquired about preferred type of surgery in three clinical scenarios.Results. Of 22 practitioners, 15 responded to the survey. The number of urogynecologists who reported using vaginal mesh for the repair of primary POP increased from 47 to 67% from 2009 to 2011. The number who would not use vaginal mesh in POP repair of elderly patients dropped from 60 to 3%. Finally, for the treatment of a 35-year-old patient with stage III uterine prolapse who desired to preserve fertility, 13% recommended the used vaginal mesh in 2009 compared with 47% in 2011.Conclusion. A survey of practitioners shows that the use of vaginal mesh for the repair of primary and recurrent pelvic organ prolapse has become more common among Israeli urogynecologists.
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Park, Young Jae, Yoon Suk Chang, Jae Boong Choi, and Young Jin Kim. "Study on Large Scale Analysis for Infra-Structure." Solid State Phenomena 110 (March 2006): 169–76. http://dx.doi.org/10.4028/www.scientific.net/ssp.110.169.
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During the last two decades, the interests of large scale seamless analysis have been increased with respect to lifetime extension and management of infra-structure. And then, a seamless analysis of complex geometry is one of greatly interesting topic. However, there are still gaps between the industrial applications and fundamental academic studies owing to time consuming the modeling and analyzing process. To resolve these problems, the integrity evaluation procedure from knowledge-based information system (KIS) to ADVENTRUE has been proposed for the application of auto mesh generation and large scale analysis. The virtual plant which is used for the master of KIS, provides the 3D information of entities for mesh generation. And then, the ADVENTURE makes a domain decomposed mesh and analyzes it using hierarchical domain decomposition method. Considering the good applicability in both efficiency and exactness point of views, it is anticipated that the proposed study on large scale analysis can be used as a promising integrity evaluation method of infra-structures.
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Kao, Katherine, Collin Chen, Jennifer Gross, Samuel Hahn, John Chi, Gregory Branham, and Joseph Zenga. "Titanium Mesh Nasal Repair without Nasal Lining." Facial Plastic Surgery 33, no. 01 (February 2017): 052–57. http://dx.doi.org/10.1055/s-0036-1593747.
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AbstractThe objective of this study was to describe outcomes for patients who underwent titanium mesh reconstruction of full-thickness nasal defects without internal lining repair. This is a retrospective cohort study. Patients with through-and-through nasal defects were identified at a single academic institution between 2008 and 2016. Nasal reconstruction was performed with either titanium mesh and external skin reconstruction without repair of the intranasal lining or traditional three-layer closure. Five patients underwent titanium mesh reconstruction and 11 underwent traditional three-layer repair. Median follow-up was 11 months (range, 2–66 months). The only significant difference between groups was older age in patients undergoing titanium reconstruction (mean, 81 vs. 63 years; difference of 18; 95% confidence interval [CI], 4–32 years). Defect extent including overall size and structures removed was similar between groups (p > 0.05). Paramedian forehead flap was the most common external reconstruction in both groups (100% for titanium mesh and 73% for three-layer closure). Time under anesthesia was significantly shorter for titanium mesh reconstruction (median, 119 vs. 314 minutes; difference of 195; 95% CI, 45–237). Estimated blood loss and length of hospital stay were similar between groups (p > 0.05). Complication rates were substantial although not significantly different, 40 and 36% in titanium and three-layer reconstruction, respectively (p > 0.05). All patients with complications after titanium reconstruction had prior or postoperative radiotherapy. Titanium mesh reconstruction of through-and-through nasal defects can successfully be performed without reconstruction of the intranasal lining, significantly decreasing operative times. This reconstructive technique may not be suitable for patients who undergo radiotherapy.
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Seifollahi Moghadam, Zahra, François Guibault, and André Garon. "On the Evaluation of Mesh Resolution for Large-Eddy Simulation of Internal Flows Using Openfoam." Fluids 6, no. 1 (January 5, 2021): 24. http://dx.doi.org/10.3390/fluids6010024.
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The central aim of this paper is to use OpenFOAM for the assessment of mesh resolution requirements for large-eddy simulation (LES) of flows similar to the ones which occur inside the draft-tube of hydraulic turbines at off-design operating conditions. The importance of this study is related to the fact that hydraulic turbines often need to be operated over an extended range of operating conditions, which makes the investigation of fluctuating stresses crucial. Scale-resolving simulation (SRS) approaches, such as LES and detached-eddy simulation (DES), have received more interests in the recent decade for understanding and mitigating unsteady operational behavior of hydro turbines. This interest is due to their ability to resolve a larger part of turbulent flows. However, verification studies in LES are very challenging, since errors in numerical discretization, but also subgrid-scale (SGS) models, are both influenced by grid resolution. A comprehensive examination of the literature shows that SRS for different operating conditions of hydraulic turbines is still quite limited and that there is no consensus on mesh resolution requirement for SRS studies. Therefore, the goal of this research is to develop a reliable framework for the validation and verification of SRS, especially LES, so that it can be applied for the investigation of flow phenomena inside hydraulic turbine draft-tube and runner at their off-design operating conditions. Two academic test cases are considered in this research, a turbulent channel flow and a case of sudden expansion. The sudden expansion test case resembles the flow inside the draft-tube of hydraulic turbines at part load. In this study, we concentrate on these academic test cases, but it is expected that hydraulic turbine flow simulations will eventually benefit from the results of the current research. The results show that two-point autocorrelation is more sensitive to mesh resolution than energy spectra. In addition, for the case of sudden expansion, the mesh resolution has a tremendous effect on the results, and, so far, we have not capture an asymptotic converging behavior in the results of Root Mean Square (RMS) of velocity fluctuations and two-point autocorrelation. This case, which represents complex flow behavior, needs further mesh resolution studies.
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Et. al., José Miguel Rubio,. "Balanced Academic Curriculum: Looking For An Optimal Solution With Metaheuristics And Functional Programming." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 6 (April 11, 2021): 1181–88. http://dx.doi.org/10.17762/turcomat.v12i6.2435.
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The curriculum design is quite a challenge in the academy, mainly because it requires an adequate distribution of content for the development of the expected professional competencies regarding the available time, the necessary academic load, and their gradual progress in the higher educational institutions. Considering the above, the main objective of this work is to present and exemplify a computational solution to minimize the cost of designing curriculum plans using bio-inspired algorithms to automate and reduce errors in such a process. Specifically, the purpose of this research focuses on solving the Curriculum Mesh Balancing (BACP) problem through metaheuristic optimization based on the behavior or algorithm of fireflies and the use of functional programming in the Haskell lang curricular meshes, rolling of curricular meshes, metaheuristics; firefly algorithm, functional programming in Haskell programming language. The firefly algorithm will be applied to a set of test instances to demonstrate its effectiveness. According to the obtained results, this proposal allows the efficient gathering of solutions to the problem under study.
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Ishihara, Ken, Takehiro Noda, and Hiroyuki Sakurai. "Investigating Applicability of the Meshfree Method to the Structural Analysis of Tires." Tire Science and Technology 40, no. 2 (April 1, 2012): 60–82. http://dx.doi.org/10.2346/1945-5852-40.2.60.
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ABSTRACT In contrast to the finite element method (FEM), which is widely used in the tire industry nowadays, some alternative methods have been proposed by academic communities over the past decade or so. The meshfree method is one of those new methodologies. Originally intended to remove the burden of creating the mesh that is inherent in FEM, the meshfree method relies on the point data rather than the mesh, which makes it much easier to discretize the geometry. In addition to those modeling issues, it has been found that the meshfree method has several advantages over FEM in handling geometrical nonlinearities, continuities, and so forth. In accordance with those emerging possibilities, the authors have been conducting research on the matter. This article describes the results of the authors' preliminary research on the applicability of the meshfree method to tire analyses, which include the theoretical outline, the strategy of tire modeling, numerical results, comparisons with results of FEM, and conclusions.
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Kiss, Gergely Máté, Jan Kaska, Roberto André Henrique De Oliveira, Olena Rubanenko, and Balázs Tóth. "Performance Analysis of FEM Solvers on Practical Electromagnetic Problems." Periodica Polytechnica Electrical Engineering and Computer Science 65, no. 2 (March 25, 2021): 113–22. http://dx.doi.org/10.3311/ppee.17144.
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The paper presents a comparative analysis of different commercial and academic software. The comparison aims to examine how the integrated adaptive grid refinement methodologies can deal with challenging, electromagnetic-field related problems. For this comparison, two bench-mark problems were examined in the paper. The first example is a solution of an L-shape domain like test problem, which has a singularity at a certain point in the geometry. The second problem is an induction heated aluminum rod, which accurate solution needs to solve non-linear, coupled physical fields. The accurate solution of this problem requires applying adaptive mesh generation strategies or applying a very fine mesh in the electromagnetic domain, which can significantly increase the computational complexity. The results show that the fully-hp adaptive meshing strategies, which are integrated into Agros Suite, can significantly reduce the task's computational complexity compared to the automatic h-adaptivity, which is part of the examined, popular commercial solvers.
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Andres, Hayward P., and Obasi H. Akan. "A test of the teaching-learning style mesh hypothesis in a Chinese MBA." Journal of International Education in Business 8, no. 2 (November 2, 2015): 145–63. http://dx.doi.org/10.1108/jieb-12-2014-0021.
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Purpose – The purpose of this paper is to determine if “fit” and “non-fit” between authoritarian versus demonstrator teaching and visual versus verbal learning preferences differ in impact on Chinese MBA student academic performance in a large local urban Chinese university setting. In addition, the role of Chinese cultural behavioral tendencies in dictating specific teaching and learning style preferences among Chinese MBA students is also examined. Design/methodology/approach – Subjects were 135 Chinese MBA students that indicated their learning style preference (verbal or visual) and predominant teaching style encountered (authoritarian or demonstrator). Analysis of variance (ANOVA) main effects were used to identify the best teaching style and best learning style. ANOVA interaction effects were used to test the meshing hypothesis (i.e. teaching-learning style “fit” versus “non-fit” conditions). Findings – The results provided support for the mesh hypothesis – teaching style – learning style fit does matter. In general, authoritarian teaching was superior to demonstrator, and verbal learning was superior to visual. Findings also suggest that the demonstrator teaching style may better handle different learning styles (e.g. both verbal and visual) simultaneously as compared to the classic authoritarian teaching style. Research limitations/implications – The findings support and contribute to the body of knowledge about the mesh hypothesis and provide the foundations for further longitudinal studies evaluating teaching and learning styles learning styles in a multicultural and cross-cultural context. A limitation of the study is that self-report responses were used and the data were collected at one Chinese university. Practical implications – The results suggest that instructors are likely to reach only a selected few students if it is assumed that all students learn in the same way or based on cultural orientation alone. University administrators should be aware of the role of cultural tendencies related to teaching and learning and how cross-cultural communication and multicultural awareness can provide insights into strategies for social and academic integration of foreign students. Originality/value – To date, the meshing hypothesis has received far less theoretical or empirical attention than the general learning style and teaching style hypotheses. This study addresses that gap.
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Karimzadeh Naghshineh, Ali, Ugurhan Akyuz, and Alp Caner. "Lateral Response Comparison of Unbonded Elastomeric Bearings Reinforced with Carbon Fiber Mesh and Steel." Shock and Vibration 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/208045.
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The vertical and horizontal stiffness used in design of bearings have been established in the last few decades. At the meantime, applicability of the theoretical approach developed to estimate vertical stiffness of the fiber-reinforced bearings has been verified in different academic studies. The suitability of conventional horizontal stiffness equation developed for elastomeric material, mainly for steel-reinforced elastomeric bearings, has not been tested in detail for use of fiber-reinforced elastomeric bearings. In this research, lateral response of fiber mesh-reinforced elastomeric bearings has been determined through experimental tests and the results have been compared by corresponding values pertaining to the steel-reinforced bearings. Within the test program, eight pairs of fiber mesh-reinforced bearings and eight pairs of steel-reinforced bearings are subjected to different levels of compressive stress and cyclic shear strains. Fiber-reinforced elastomeric bearings may be more favorable to be used in seismic regions due to lower horizontal stiffness that can result in mitigation of seismic forces for levels of 100% shear strain. Damping properties of these types of fiber mesh-reinforced bearings depend mostly on the selection of elastomeric material compounds. Suggestions have been made for the lateral response of fiber-reinforced elastomeric bearings. It has also been determined that the classical equation for lateral stiffness based on linear elastic behavior assumptions developed for elastomeric bearings does not always apply to the fiber-reinforced ones.
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Mahmud, Tayyaba, Uzma Akhtar, Natasha Nadeem, and Bakhtawar . "Socrative.Com; An Innovative Tool to Enhance Performance of Undergraduate Students in Histology Practicals." Pakistan Journal of Medical and Health Sciences 15, no. 7 (July 26, 2021): 1527–30. http://dx.doi.org/10.53350/pjmhs211571527.
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Background: Undergraduate medical students require a strong foundation in histology which is an important part of curriculum in basic sciences years. Histology is considered to be a difficult subject by the students. Aim: To facilitate student learning, Socrative was introduced into histology practicals. Methods: This was a comparative cross-sectional study conducted among second year MBBS students (n=146) in histology. Socrative based activity, Space race, was introduced into histology practicals for the entire duration of module-III (10 weeks). This activity was done by the students in addition to demonstration and slide viewing under microscope. Performance of the students was assessed in histology Objective Structured Practical Examination (OSPE) and viva during module examinations. Score sheets of module-I were compared to those of module-III to assess the impact of using Socrative on academic performance. The study was approved by institutional Ethical Review Committee. Results: The results were analyzed using Wilcoxon Signed Rank test which showed statistically significant improvement in the performance of students (P value= 0.0001) in module-III. Moreover, 81.5% students showed improvement in academic performance after using Socrative. Conclusion: These results show that use of Socrative assessment method as part of teaching method, improved academic performance of undergraduate medical students in histology. Keywords: Socrative, histology, formative assessment, academic performance (MeSH words required)
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Guerrero-Erazo, Jhoniers Gilberto, Germán Stiven Grandas -Aguirre, and Juan Diego Castaño-Gómez. "Development of a relevance index for the subjects in a study plan - Case study: Systems and Computer Engineering, Universidad Tecnológica de Pereira." Scientia et Technica 25, no. 3 (September 30, 2020): 455–60. http://dx.doi.org/10.22517/23447214.24454.
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This document presents the development of an index that aims to quantify, according to some criteria known in graph theory, how relevant a subject is, taking into account its location in the curriculum, its number of credits, its prerequisites and the subjects dependents. The first thing was to model the academic plan using a graph, which considers only two things: the assigned credits and the prerequisites that must be met before taking the subjects. After having this model, graph theory algorithms were applied that allow to measure the importance of a subject with respect to the location in its curricular mesh (Centrality) and allow to give a measure of the importance of the subjects based on academic credits, its prerequisites and subjects depending on it (Neighborhood). It is important to note that the analysis presented is not intended to indicate that one subject is more important than another for the student's professional development, but rather to analyze, in an estimative way, which subjects contribute more to the connectivity of the program and academic flow by this network only taking into account the information found in the curriculum.The result obtained is a composite index, which allows visualizing the relevance degree of the subjects in the study plan.
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Giddings, Seth. "Accursed Play: The Economic Imaginary of Early Game Studies." Games and Culture 13, no. 7 (February 19, 2018): 765–83. http://dx.doi.org/10.1177/1555412018755914.
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Revisiting early critical responses to computer and video games as a cultural form—before the establishment of games studies as an academic field in the early 2000s—reveals a consistent fascination with games as economic phenomena. Not just as a new commercial competitor in the established popular media marketplace but as models of economies in their own right, models that mesh with player’s everyday lives, constraining, facilitating, and forming gameplay. This article will identify and explore some of the most salient themes and phenomena in this early games scholarship and will follow them through subsequent enquiry into games as economies either isomorphic with the systems of consumer capitalism and neoliberalism from which they issue or metamorphic—phantasmagorical or ironic inversions of prevailing social and industrial conditions.
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Paes, Santiago Tavares, Stephania Neves Scapim, Carlos Gabriel de Lade, Helder Barra de Moura, Helder Zimmerman de Oliveira, Fernanda Dias Coelho, Raphael Soares, and Marcionilio Neto. "Is it possible to teach good health practices using social media?" Research, Society and Development 10, no. 12 (September 21, 2021): e295101220600. http://dx.doi.org/10.33448/rsd-v10i12.20600.
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Social media represents a powerful weapon to promote health education. The aim of the present study was to investigate how health information is discussed and disseminated by people who do not have specific academic certification but are legitimized due to their experiences. We conducted a narrative review of the literature published from 2016 to 2021 in PubMed, using the search terms “Social Media”, “Health” and “Education”, and their variations according to MeSH. Randomized controlled trials (RCTs) which evaluated the use of social media to disseminate health information content were included in the analysis. Despite the undeniable role of social media in disseminating content concerning health practices, the use of these platforms without proper scientific support or academic certification by so-called health influencers can promote questionable content. A number of studies demonstrate that content published on social media can negatively influence the health of users. Greater scientific rigor and professional training could contribute to guarantee reliability of data regarding health information shared on social media. More studies must assess the relevance of using virtual tools for sharing content aimed at improving health and scientific reliability.
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Lachat, Carl, Dominique Roberfroid, Lien Van den Broeck, Natalie Van den Briel, Eunice Nago, Annamarie Kruger, Michelle Holdsworth, Christopher Garimoi Orach, and Patrick Kolsteren. "A decade of nutrition research in Africa: assessment of the evidence base and academic collaboration." Public Health Nutrition 18, no. 10 (October 7, 2014): 1890–97. http://dx.doi.org/10.1017/s1368980014002146.
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AbstractObjectiveMalnutrition in Africa has not improved compared with other regions in the world. Investment in the build-up of a strong African research workforce is essential to provide contextual solutions to the nutritional problems of Africa. To orientate this process, we reviewed nutrition research carried out in Africa and published during the last decade.DesignWe assessed nutrition research from Africa published between 2000 and 2010 from MEDLINE and EMBASE and analysed the study design and type of intervention for studies indexed with major MeSH terms for vitamin A deficiency, protein–energy malnutrition, obesity, breast-feeding, nutritional status and food security. Affiliations of first authors were visualised as a network and power of affiliations was assessed using centrality metrics.SettingAfrica.SubjectsAfricans, all age groups.ResultsMost research on the topics was conducted in Southern (36 %) and Western Africa (34 %). The intervention studies (9 %; n 95) mainly tested technological and curative approaches to the nutritional problems. Only for papers on protein–energy malnutrition and obesity did lead authorship from Africa exceed that from non-African affiliations. The 10 % most powerfully connected affiliations were situated mainly outside Africa for publications on vitamin A deficiency, breast-feeding, nutritional status and food security.ConclusionsThe development of the evidence base for nutrition research in Africa is focused on treatment and the potential for cross-African networks to publish nutrition research from Africa remains grossly underutilised. Efforts to build capacity for effective nutrition action in Africa will require forging a true academic partnership between African and non-African research institutions.
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Ilgisonis, E. V., O. I. Kiseleva, A. V. Lisitsa, E. V. Poverennaya, M. N. Toporkova, and E. A. Ponomarenko. "Medical subject headings for the scientific groups evolution analysis on the example of academician A.I. Archakov's scientific school." Biomeditsinskaya Khimiya 66, no. 1 (January 2020): 7–17. http://dx.doi.org/10.18097/pbmc20206601007.
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This paper proposes a method of comparative analysis of scientific trajectories based on bibliographic profiles. The bibliographic profile (“meshprint”) is a list of MeSH terms (key terms used to index articles in the PubMed), indicating the relative frequency of occurrence of each term in the scientist's articles. Comparison of personalized bibliographic profiles can be represented in the form of a semantic network, where the nodes are the names of scientists, and the relationships are proportional to the calculated measures of similarity of bibliographic profiles. The proposed method was used to analyze the semantic network of scientists united by the academic school of the academician A.I. Archakov. The results of the work allowed us to show the relationship between the scientific trajectories of one scientific school and to correlate the results with world trends.
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Latifi, Rifat, David J. Samson, Shekhar Gogna, and Bellal A. Joseph. "Perioperative complications of complex abdominal wall reconstruction with biologic mesh: A pooled retrospective cohort analysis of 220 patients from two academic centers." International Journal of Surgery 74 (February 2020): 94–99. http://dx.doi.org/10.1016/j.ijsu.2019.12.035.
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Gallotti, Fernanda Costa Martins, Emily Santos Costa, Gabriela Aragão Santos Oliveira, Manuela de Carvalho Vieira Martins, Meiriane do Carmo Passos, Shirley Dósea dos Santos Naziazeno, Rebecca Maria Oliveira de Góis, Rodrigo Gallotti Lima, and Mairim Russo Serafini. "Analysis of realistic simulation as an educational tool in the academic and professional contexts of nursing." International Journal for Innovation Education and Research 9, no. 2 (February 1, 2021): 87–107. http://dx.doi.org/10.31686/ijier.vol9.iss2.2953.
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Nursing education and training based on content and technicality has undergone a process over the years mainly with the proposal of national curriculum guidelines to implement changes in the curriculum and the insertion of new teaching methodologies by educational institutions. Thus, realistic simulation is born with the proposal to actively teach students and promote the development of numerous skills and competences. Objective: to analyze evidence of the use and effectiveness of realistic simulation as an active method of teaching and learning in nursing in the academic and professional context. Methodology: Integrative review, carried out on the databases: Cochrane, ERIC, Medline, Science Direct and PubMed. The descriptors were selected based on the list of Health Sciences Descriptors - DeCS / MeSH were: Nursing, Active learning, simulation training, matching the search terms, using the Boolean operator AND. Results: The final sample resulted in 37 articles. It was possible to observe that the simulation helps in critical thinking, reasoning, clinical judgment, leadership, autonomy and decision-making favoring patient care and that it can be performed in different formats, such as virtual simulation, clinical case simulators, simulation with games and room simulation with simulated scenario. The introduction of this methodology in educational institutions ended up being a limitation found, in addition to the need for technologies and training for teachers. Conclusion: From the results of this study, it is concluded that realistic simulation is a method capable of preparing students and professionals to meet health needs.
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Campos, Elen Villegas, Alexandra Maria Almeida Carvalho, and Albert Schiaveto de Souza. "Satisfação no trabalho e qualidade de vida de professores universitários brasileiros: revisão integrativa." Multitemas 24, no. 57 (August 16, 2019): 59. http://dx.doi.org/10.20435/multi.v24i57.2260.
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A satisfação no trabalho e a qualidade de vida determinam a condição de saúde dos professores universitários e interferem no processo de ensino- aprendizagem. Objetivo: Avaliar a satisfação no trabalho e a qualidade de vida de professores universitários de instituições no Brasil. Método: Revisão integrativa de artigos publicados entre janeiro de 2008 e janeiro de 2018. A coleta de dados foi realizada nas bases de dados: Directory of Open Access Journals, SciELO, LILACS, PubMed, e Academic One File. Para busca no inglês, foram utilizados descritores exatos do Medical Subjects Headings (MeSH): “quality of life”, “job satisfaction”, “faculty” e “Brazil” e em português, os Descritores em Ciências de Saúde (DeCS): “qualidade de vida” “docentes”, “universidades”, e o sinônimo “satisfação no trabalho”. Resultados: Os docentes, em sua maioria, estão satisfeitos com o trabalho que realizam, assim como apresentam uma qualidade de vida satisfatória.
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Speer, Andrew B., Subhadra Dutta, Menghan Chen, and Glenn Trussell. "Here to stay or go? Connecting turnover research to applied attrition modeling." Industrial and Organizational Psychology 12, no. 3 (July 1, 2019): 277–301. http://dx.doi.org/10.1017/iop.2019.22.
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AbstractAttrition modeling is a direct application of extant turnover research that can favorably impact workforce planning and action planning. However, while academic research enables practitioners insights into understanding turnover phenomena, there is no single document that comprehensively translates this work to give guidance as to the many practical decisions that must be made when modeling turnover, as well as how to apply psychological research to messier operational data. This focal article introduces and provides guidance on attrition modeling by outlining early considerations when planning a study, describing how to mesh theory with operational considerations when identifying turnover predictors within organizational settings, highlighting analytical strategies to model turnover, and considering how to appropriately share results. Collectively, this article serves as a guide to conducting attrition modeling within organizations and offers suggestions for future research to inform best practices.
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Kidd, Colin. "THE GRAIL OF ORIGINAL MEANING: USES OF THE PAST IN AMERICAN CONSTITUTIONAL THEORYProthero Lecture." Transactions of the Royal Historical Society 26 (September 29, 2016): 175–96. http://dx.doi.org/10.1017/s0080440116000104.
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ABSTRACTOriginalist jurisprudence, which enjoins a faithful adherence to the values enshrined in the late eighteenth-century Constitution, has become a prominent feature of contemporary American conservatism. Recovering the original meaning of the Constitution is far from straightforward, and raises major issues of historical interpretation. How far do the assumed historical underpinnings of originalist interpretation mesh with the findings of academic historians? To what extent has the conservative invocation of the Founding Fathers obscured a lost American Enlightenment? Nor is ‘tradition’ in American Constitutional law an unproblematic matter. How far does a desire to restore the original meaning of the Constitution ignore the role of ‘stare decisis’ (precedent) in America's common law heritage? It transpires, moreover, that the various schemes of historical interpretation in American Constitutional jurisprudence do not map easily onto a simple liberal–conservative divide.
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Naraine, Michael L. "The Blockchain Phenomenon: Conceptualizing Decentralized Networks and the Value Proposition to the Sport Industry." International Journal of Sport Communication 12, no. 3 (September 1, 2019): 313–35. http://dx.doi.org/10.1123/ijsc.2019-0051.
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The sport industry has experienced significant technological change in its environment with the recent rise of Bitcoin and its underlying foundation, blockchain. Accordingly, the purpose of this paper is to introduce and conceptually ground blockchain in sport and discuss the implications and value proposition of blockchain to the sport industry. After a brief overview of blockchain and the technology stack, the mechanism is conceptually rooted in the network paradigm, a framework already known to the academic sport community. This treatment argues that the decentralized, closed, and dense mesh network produced by blockchain technology is beneficial to the sport industry. Notably, the article identifies blockchain’s capacity to facilitate new sources of revenue and improve data management and suggests that sport management and communication consider the value of blockchain and the technology stack as the digital footprint in the industry intensifies and becomes increasingly complex.
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Arias-Rojas, Mauricio, Sonia Carreño-Moreno, and Jennifer Rojas-Reyes. "Uncertainty Towards the Disease of Family Caregivers of Patients in Palliative Care: A Scoping Review." Aquichan 20, no. 3 (September 7, 2020): 1–13. http://dx.doi.org/10.5294/aqui.2020.20.3.4.
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Objective: To know the development of the scientific evidence on the uncertainty towards the disease of family caregivers of patients in palliative care. Materials and methods: A descriptive scoping review. A search was conducted in the Embase, ScienceDirect, Medline, Academic Search Complete, Scopus databases, during the 2000-2019 period. The following MeSH terms were used: uncertainty, palliative care, end of life, nursing and caregiver. Fifty articles were selected after the criticism process. Results: Five thematic nuclei emerged: characterization of uncertainty in the caregiver, factors influencing uncertainty, resources to manage uncertainty, uncertainty assessment, and therapies and interventions to approach uncertainty. The higher scale of evidence is found in the characterization of uncertainty in the caregiver, and the voids direct the development of Nursing interventions on the uncertainty of the caregivers of individuals in palliative care. Conclusions: Although the factors influencing uncertainty towards the disease of the caregiver are widely explored, the evidence on the interventions that may help to reduce uncertainty towards the disease is still limited.
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Bauer, Daniel, Alexander Kling, and Jochen Russ. "A Universal Pricing Framework for Guaranteed Minimum Benefits in Variable Annuities." ASTIN Bulletin 38, no. 02 (November 2008): 621–51. http://dx.doi.org/10.2143/ast.38.2.2033356.
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Variable Annuities with embedded guarantees are very popular in the US market. There exists a great variety of products with both, guaranteed minimum death benefits (GMDB) and guaranteed minimum living benefits (GMLB). Although several approaches for pricing some of the corresponding guarantees have been proposed in the academic literature, there is no general framework in which the existing variety of such guarantees can be priced consistently. The present paper fills this gap by introducing a model, which permits a consistent and extensive analysis of all types of guarantees currently offered within Variable Annuity contracts. Besides a valuation assuming that the policyholder follows a given strategy with respect to surrender and withdrawals, we are able to price the contract under optimal policyholder behavior. Using both, Monte-Carlo methods and a generalization of a finite mesh discretization approach, we find that some guarantees are overpriced, whereas others, e.g. guaranteed annuities within guaranteed minimum income benefits (GMIB), are offered significantly below their risk-neutral value.
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Bauer, Daniel, Alexander Kling, and Jochen Russ. "A Universal Pricing Framework for Guaranteed Minimum Benefits in Variable Annuities." ASTIN Bulletin 38, no. 2 (November 2008): 621–51. http://dx.doi.org/10.1017/s0515036100015312.
Full textAbstract:
Variable Annuities with embedded guarantees are very popular in the US market. There exists a great variety of products with both, guaranteed minimum death benefits (GMDB) and guaranteed minimum living benefits (GMLB). Although several approaches for pricing some of the corresponding guarantees have been proposed in the academic literature, there is no general framework in which the existing variety of such guarantees can be priced consistently. The present paper fills this gap by introducing a model, which permits a consistent and extensive analysis of all types of guarantees currently offered within Variable Annuity contracts. Besides a valuation assuming that the policyholder follows a given strategy with respect to surrender and withdrawals, we are able to price the contract under optimal policyholder behavior. Using both, Monte-Carlo methods and a generalization of a finite mesh discretization approach, we find that some guarantees are overpriced, whereas others, e.g. guaranteed annuities within guaranteed minimum income benefits (GMIB), are offered significantly below their risk-neutral value.
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Gabbert, Ulrich, and Mathias Würkner. "Simulation of cellular structures with a coupled FEM-FCM approach based on CT data." Journal of Computational and Applied Mechanics 16, no. 1 (2021): 57–70. http://dx.doi.org/10.32973/jcam.2021.004.
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The application of cellular structural materials provide new light-weight capabilities in many engineering fields. But the microstructure significantly influences the strength, the fatigue and fracture behavior as well as the life span of a structure made from cellular materials. The current paper illustrates the general idea how to take into account the cellular microstructure in the stress and strain analysis. The detailed geometry, including all discontinuities in the microstructure is available, for instance from measurements provided by the computed tomography (CT). The proposed simulation methodology is a combination of the finite element method (FEM) and the finite cell method (FCM). The FCM approach is applied in regions where discontinuities occur, avoiding a body-fitted mesh. As basis of the FEM-FCM coupling the commercial FEA package Abaqus is used. The theoretical background and the overall simulation workflow along with specific implementation details are discussed. Finally, academic benchmark problems are used to verify the developed coupling method.
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Yang, Jingguo, Tong Sun, Yikai Yuan, Xuepei Li, Hang Yu, and Junwen Guan. "Evaluation of titanium mesh cranioplasty and polyetheretherketone cranioplasty: protocol for a multicentre, assessor-blinded, randomised controlled trial." BMJ Open 9, no. 12 (December 2019): e033997. http://dx.doi.org/10.1136/bmjopen-2019-033997.
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IntroductionCranioplasty is a common surgery in neurosurgery department. However, restoring the integrity of skull brings many challenges to surgeons, and the selection of ideal implant materials is throughout the history of cranioplasty. Although titanium mesh was still preferred by many neurosurgeons in cranial reconstruction, the new polyetheretherketone (PEEK) material, for example, is gaining popularity for craniofacial reconstruction today. There remain limited data that compare the outcome of PEEK cranioplasty and titanium mesh cranioplasty. It is necessary to conduct a study to compare outcome of different materials for cranioplasty.Methods/designIn this multicentre, assessor-blinded, randomised controlled study, we will randomise 140 patients in a 1:1 ratio to PEEK cranioplasty versus titanium cranioplasty. Eligible patients are adults who were diagnosed with cranial defect (due to severe traumatic brain injury, ischaemic stroke, haemorrhagic stroke, infiltrative tumour and so on), the defect size is over 25 cm2, and they need to agree to participate in this trial. Instead of standard examinations, the enrolled patients receive neurological, motor, cognitive function and cerebral hemodynamics examinations as well as cosmetic evaluation. The procedures are repeated 3, 6 months after cranioplasty. The primary outcome, defined as infection or implant exposure after surgery, is the implant failure rate within 6 months. Secondary outcomes include postoperative complication rates, neurological outcomes, motor function, cerebral hemodynamics, cosmetic outcome and the total cost over a 6-month period.Ethics and disseminationThis trial protocol has been approved by Biomedical Research Ethics Committee of West China Hospital of Sichuan University. All patients will be fully informed the implant materials, potential complications after surgery, responsibilities during the trial, and they will sign the informed consent before joining in this trial. If the patient’s cognitive function is impaired, the patient’s next of kin would be carefully informed. The results will be disseminated through academic conferences, student theses and will be published in a peer-reviewed journal.Trail registration numberChiCTR1900024625; Pre-results.
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Saber, Hamidreza, Ashutosh P. Jadhav, Gary B. Rajah, Sandra Narayanan, Sunil A. Sheth, David S. Liebeskind, and Melek Somai. "Clinical trials of neurointervention : 2007–2018." Journal of NeuroInterventional Surgery 11, no. 12 (September 17, 2019): 1277–82. http://dx.doi.org/10.1136/neurintsurg-2019-015117.
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BackgroundClinicalTrials.gov is one of the largest trials’ registries in the world.ObjectiveTo leverage the ClinicalTrials.gov database to define the portfolio of clinical trials of neurointervention.MethodsWe restricted our extraction to interventional clinical trials submitted between 2007 and 2018, and included MeSH terms that are part of the nervous system (n=19 344) or cardiovascular disease (n=19 234) categories and included a list of neurointerventional terms. The characteristics of trials, geographic distribution, dissemination, and funding sources were explored using descriptive and regression models.ResultsA total of 206 neurointerventional clinical trials across 1691 medical centers were identified. Acute stroke was the most studied conditions (68, 33%), followed by aneurysms (63, 31%), carotid stenosis (48, 24%), intracranial atherosclerotic disease (7, 3.5%), cerebral venous thrombosis (6, 3%), arteriovenous malformation (4, 2%), idiopathic intracranial hypertension (3, 1.5%), and others (6, 3%). Overall, 59 (29%) trials were completed, 79 (37%) were active trials (28% recruiting), and 22 (11%) were terminated or suspended. Academic centers and industry were the most common primary funding source (63% and 29%, respectively), with no funding source reported in 16 (7.7%) trials. Among 77 completed or terminated trials, only 9 (11.7%) trials reported findings within 12 months. Median time to publication for trials funded by academia was 1.66 years (interquartile range (IQR) 0.7–2.1) versus 2.1 years (IQR 1.2–3.25) for industry-funded studies.ConclusionsA low dissemination rate for results and a high rate of study non-completion, as well as lack of geographic dispersion of trials appear to be major challenges in the field.
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Schechner, Richard. "Uprooting the Garden: Thoughts around ‘The Prometheus Project’." New Theatre Quarterly 2, no. 5 (February 1986): 3–11. http://dx.doi.org/10.1017/s0266464x00001858.
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Richard Schechner is presently working towards a production of his The Prometheus Project, planned to open at the Performing Garage in New York before the appearance of this issue. Simultaneously, he is trying to come to terms with his own failures of communication with his eighty-year-old father. Personal preoccupations, theatrical work-in-progress, and performance theory mesh together in what amounts to the overview offered here of an avant-grade confronted by the prospect of global genocide – and, more specifically. Schechner offers an explanation of the tone of parody which seems increasingly to have characterized performance work. Richard Schechner took The Drama Review from its origins as a small academic journal to a lively forum for theatrical debate during his editorship from 1962 to 1969, by which time he was already directing the Performance Group, whose opening production was the controversial Dionysus in 69. He has been a Professor of Performance Studies at New York University since 1967, and resumed the editorship of TDR in 1985.
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Mendoza-Armenta, Mayra, Carolina Valdez-Montero, Martha Ofelia Valle-Solís, Jesica Guadalupe Ahumada-Cortez, and Mario Enrique Gámez-Medina. "Funciones ejecutivas, conducta sexual de riesgo y uso de drogas lícitas e ilícitas en adolescentes: Una revisión sistemática." Health and Addictions/Salud y Drogas 20, no. 1 (March 4, 2020): 102–12. http://dx.doi.org/10.21134/haaj.v20i1.483.
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Objetivo. Identificar y sintetizar la evidencia disponible de la relación entre las Funciones Ejecutivas (FE), conducta sexual de riesgo y uso de drogas lícitas e ilícitas en adolescentes. Método. Se realizó búsqueda en: Elsevier, Academic Search Complete (Ebsco), MedicLatina (Ebsco), Bussines Source Complete (Ebsco), Regional Business News (Ebsco) y Google Académico. Se utilizó los descriptores DeCs y MeSH y la lista de chequeo de Joanna Briggs Institute para la selección de los estudios. Resultados. Se eligieron ocho estudios. El 62.5% de los estudios abordaron las FE de manera general o algún(os) componente(s). El 37.5% de los estudios mostraron que a menor FE mayor conducta sexual de riesgo y uso de drogas. Conclusiones. Las FE es un constructo complejo y juega un papel importante en la regulación de la conducta, así como en la toma de decisiones y la atención de los adolescentes. Los hallazgos indican que las FE se relacionan con las conductas sexuales de riesgo, sin embargo, se encuentra una variedad en los resultados con respecto al consumo de drogas.
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Alcock, Lindsay J. "Bibliometric Analysis Identifies Publication Trends and Most Common Research Topics Related to Internet Health Information Seeking Behaviour." Evidence Based Library and Information Practice 10, no. 4 (December 13, 2015): 221. http://dx.doi.org/10.18438/b8k896.
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A Review of:
Li, F., Li, M., Guan, P., Ma, S., & Cui, L. (2015). Mapping publication trends and identifying hot spots of research on Internet health information seeking behavior: A quantitative and co-word biclustering analysis. Journal of Medical Internet Research, 17(3), e81. http://dx.doi.org/10.2196/jmir.3326
Objective – To identify research and publication trends related to health-seeking information behaviour on the Internet.
Design – Bibliometric analysis, publication trends, and co-word biclustering analysis.
Setting – Academic journals.
Subjects – Journal articles retrieved from PubMed meeting eligibility criteria, and articles selected through hand-searching of the top three journals publishing in the identified area of research.
Methods – A search for relevant articles was performed in PubMed and supplemented by manual searching of the top three journals in the field, yielding a total of 2,780 articles. Following a high concordance rate on screening agreement, researchers identified a total of 533 articles for inclusion. These articles were considered to be representative of all the articles published on Internet health-seeking behaviour as of September 2014. Data deemed essential to biclustering co-word analysis included article title, author, institution, country, source, publication year, and MeSH terms, and was collected in both XML and MEDLINE formats to ensure information exhaustivity for subsequent analysis. Analysis of the distribution of data, as well as major MeSH frequency ranking, allowed researchers to identify the most active journals in the subject area, while biclustering for highly frequent MeSH terms determined hot spots of research. Researchers used both mountain and matrix visualization to further illustrate semantic relationships of MeSH terms and the framework for the analysis of research hot spots. Co-word analysis facilitated the identification of like-articles based on major MeSH indexing, while cluster analysis utilized a matrix grouping to identify themes. By combining this information and reorganizing the matrix, researchers were able to highlight the most common themes.
Main Results – Researchers identified ten research “hot spots,” the most prolific research topics, thus providing the top subject areas of research published in the literature related to Internet health-seeking behaviour. Top subjects include health information seeking behaviour related to HIV infection or sexually transmitted diseases; information seeking behaviour of students and of patients with cancer; consumer trust in online health information; behaviour of Internet health information seeking through mobile apps; the interaction between physician-patient relations/communications and Internet use; personal preference and computer literacy related to Internet use; and the use of social media by parents.
In terms of publishing rates, the number of papers published on health information seeking behaviour has increased consistently since 1985, when only one paper was published, to 2013, in which 114 papers were published. Authors from 42 countries or regions contributed to the body of relevant literature, with authors from the United States of America accounting for over half of published papers. Just over 96% of articles were published in English. Of the 253 journals identified as publishers of these articles, eight published over one-third of all the identified articles. The Journal of Medical Internet Research published the most articles on this topic.
Conclusion – Bibliographic analysis identified both subject and publication trends related to Internet health information seeking behaviour. Publication rates of research in the area of Internet health information have increased steadily since the first article was published in 1985. The bulk of the research tends to fall within ten identified hot spots, or research topics, according to a bibliometric analysis of indexing.
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Chisthi, Meer M. "Commentary on ‘Perioperative complications of complex abdominal wall reconstruction with biologic mesh: A pooled retrospective cohort analysis of cohort of 220 patients from two academic centers’." International Journal of Surgery 75 (March 2020): 53–54. http://dx.doi.org/10.1016/j.ijsu.2020.01.123.
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Crocetti, Daniele, and Giuseppe Cavallaro. "Comment on: Perioperative complications of complex abdominal wall reconstruction with biologic mesh: A pooled retrospective cohort analysis of cohort of 220 patients from two academic centers." International Journal of Surgery 75 (March 2020): 115. http://dx.doi.org/10.1016/j.ijsu.2020.01.149.
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Chiarello, Maria Michela, and Maria Cariati. "Perioperative complications of complex abdominal wall reconstruction with biologic mesh: A pooled retrospective cohort analysis of cohort of 220 patients from two academic centers: A commentary." International Journal of Surgery 76 (April 2020): 14–15. http://dx.doi.org/10.1016/j.ijsu.2020.02.002.
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Saraiva de Souza, J., S. José dos Santos Filho, Severino Rodrigues de Farias Neto, A. G. Barbosa de Lima, and H. A. Luma Fernandes Magalhães. "Mass Transfer in Tubular Ceramic Membranes for Polluted Water Treatment - Numerical Simulation." Diffusion Foundations 20 (December 2018): 16–33. http://dx.doi.org/10.4028/www.scientific.net/df.20.16.
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Innovative technologies are needed to attend the increasingly strict requirements for produced water treatment, since most of the separation processes are limited to particles larger than 10 μm. Separation processes using ceramic membranes are attracting great interest from academic and industrial community. Nevertheless, few studies, especially numerical, regarding the inorganic membrane’s application for the polluted water separation have been reported. In the present work, therefore, a study of fluid-flow dynamics for a laminar regime in porous tubes (tubular porous ceramic membrane) has been performed. The mass, momentum and mass transport conservation equations were solved with the aid of a structured mesh using ANSYS CFX commercial package. The velocity of local permeation was determined using the resistance in series model. The specific resistance of the polarized layer was obtained by Carman-Kozeny equation. The numerical results were evaluated and compared with the results available in the literature, where by a good agreement with each other was found. The numerical results, obtained by the proposed shell and tubular membrane separation module, indicate that there is facilitation of mass transfer and hence a reduction in the thickness of the polarized boundary layer occurs.
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Onundi, Yusuf Bamidele, Abdullah Al-Mamun, Ma’an Fami R. Al-Khatib, and Yehya M. Ahmed. "Growth of Carbon Nanomaterials on Granular Activated Carbon." Advanced Materials Research 264-265 (June 2011): 535–41. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.535.
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Since the discovery of carbon nanotubes (CNT) and subsequent Carbon Nanomaterials (CNMs), there has been an ever increased academic and industrial interest on there various fields of application due to their exceptional mechanical and electrical properties. In this work, granular activated carbon (GAC) made from palm Kernel shell (PKS) of mesh size 8x12 was impregnated with nickel as substrate catalyst for the growth of Carbon Nanomaterials (CNMs) in a chemical decomposition (CVD) reactor. Various percentages by weight of the nickel (1%, 3%, 5% and 7%) were impregnated on the GAC surface for CNM growth. The CNM growth took place at a fixed reaction temperature and gas flow rates for both the hydrogen gas and carbon source. Characterization of the novel composite material was carried out by using SEM, FESEM and TEM. The results show that growth was successful as at 1% nickel impregnation, while a denser network distribution and rougher surface of CNM was observed at 7% nickel. The growth of CNMs on a larger substrate GAC should make handling of the CNMs easier and it is expected to also open new doors of application in water treatment and oil refining.
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Al-Boeridi, Omar N., Hong Ren Wu, and Ron Van Schyndel. "Three-Dimensional Video Watermarking – A Review and Open Challenges." International Journal of Information, Communication Technology and Applications 2, no. 1 (April 18, 2016): 47–65. http://dx.doi.org/10.17972/ijicta20162122.
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Intellectual property (IP) protection of three-dimensional (3-D) media is an important issue for both academic and wider communities to combat the illegal distribution and pirating of this visual medium. Digital watermarking has been used to address various challenges in media IP protection. The challenge central to 3-D video as well as other audio-visual signal watermarking is that given a fixed level of perceptual transparency, a watermarking system cannot simultaneously achieve a high degree of robustness and a high watermark payload. The majority of published research reports in this field try to introduce new embedding methodologies to increase the watermark robustness with highest possible visual media quality. This paper reviews the current state-of-the-art in 3-D video watermarking and assesses various watermarking techniques in the field. Some of 3-D video watermarking techniques are directly inherited from video watermarking, stereo image watermarking or 3-D mesh watermarking, and therefore the relevant techniques in these fields are reviewed in this paper as well. Key performances of various embedding algorithms are examined and compared in this review to identify a benchmark for future development and performance evaluation of new 3-D video watermarking techniques.
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Pagani, Mara, Stefanie Reese, and Umberto Perego. "Explicit Simulation of Forming Processes Using a Novel Solid-Shell Concept Based on Reduced Integration." Key Engineering Materials 504-506 (February 2012): 425–30. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.425.
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The contribution deals with the simulation of sheet metal forming processes by means of a recently developed hexahedral solid-shell finite element. In contrast to this earlier work, we pursue here explicit integration. The element formulation has the following features. In order to avoid undesired effects of locking an enhanced assumed strain (EAS) concept using only one EAS degree-of-freedom has been implemented. In addition, by means of the assumed natural strain (ANS) method an excellent performance in bending situations is obtained. A key point of the element formulation is the construction of the hourglass stabilization by means of different Taylor expansions. This procedure leads to the important advantage that the sensitivity of the results with respect to mesh distortion is noticeably reduced. Further the hourglass stabilization is in this way designed that locking is eliminated and numerical stability guaranteed. The finite strain material model for plastic anisotropy and non-linear kinematic and isotropic hardening is motivated by a rheological model including Armstrong-Frederick kinematic hardening. The element formulation has been implemented into the academic code FEAP. Some standard benchmark examples are computed.
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Duran, Murat, and Mehmet Bekdemir. "Evaluation of visual math literacy self efficacy perception with visual mathematics accomplishment." Pegem Eğitim ve Öğretim Dergisi 3, no. 3 (September 1, 2013): 27–40. http://dx.doi.org/10.14527/c3s3m3.
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The aim of this study is to determine the relationship between visual math literacy self-efficacy perceptions and visual mathematics accomplishments of primary school 7th grade students. The explanatory design of mixed method, that allows use of qualitative and quantitative data together, was employed in the study. The quantitative part of the study carried out on 467 randomly selected students studying on 7th grade of 12 primary schools in the second semester of 2010-2011 academic terms in a city of the Eastern Anatolia region of Turkey. The qualitative part of the study was conducted on 60 students that were chosen with purposeful sampling methodology from a primary school in the same city in the same semester and 7th grade students. According to the results of the study; there is a positive directional, medium and significant correlation between visual math literacy self-efficacy perception and visual mathematics accomplishment. Furthermore, the visual math literacy self efficacy perception is meaningfully a predictor for the visual mathematics accomplishment. As it was expressed by the most of the students who responded interview protocol, these statistical results mesh with the review like "being visual math literate increase accomplishment in visual math".
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Rojas-Reyes, Jennifer, Lorena Chaparro-Díaz, and Sonia Patricia Carreño-Moreno. "El rol del cuidador a distancia de personas con enfermedad crónica: scoping review." Revista Ciencia y Cuidado 18, no. 1 (January 1, 2021): 81–93. http://dx.doi.org/10.22463/17949831.2447.
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Introducción. Se ha explorado poco sobre el rol del cuidador a distancia o cuidador secundario de las personas con enfermedad crónica, por ello se hace necesario conocer el avance de la evidencia científica sobre este tipo de cuidadores, con el fin de determinar los aportes y los vacíos presentes en la literatura. Metodología. Revisión descriptiva tipo scoping review, en la que se realizó una búsqueda en las siguientes bases de datos: de Embase, Science direct, Pubmed, Medline, Academic search complete y Scopus, limitando el tiempo entre 2005 – 2020. Se utilizaron los términos: DeCS y MeSH de Long distance caregiver, distance caregiver, secondary caregiver y chronic disease. Además, se seleccionaron 20 artículos originales, una vez realizado el proceso de crítica con CASPe. Resultados. Emergieron 4 núcleos temáticos: experiencias y percepciones del cuidador a distancia, características del rol del cuidador a distancia, soporte social del cuidador a distancia por medio de Tecnologías de la información y la comunicación TICs y estrategias de afrontamiento del cuidador a distancia. Conclusión: es un fenómeno poco explorado, por lo que son amplios los vacíos que existen, empezando por su autoreconocimiento en el desempeño de su rol hasta las intervenciones específicas que lo favorezcan.
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Ocloo, Josephine, Sarah Garfield, Shoba Dawson, and Bryony Dean Franklin. "Exploring the theory, barriers and enablers for patient and public involvement across health, social care and patient safety: a protocol for a systematic review of reviews." BMJ Open 7, no. 10 (October 2017): e018426. http://dx.doi.org/10.1136/bmjopen-2017-018426.
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IntroductionThe emergence of patient and public involvement (PPI) in healthcare in the UK can be traced as far back as the 1970s. More recently, campaigns by harmed patients and their relatives have emerged as a result of clinical failings in the NHS, challenging paternalistic healthcare, which have led to a new focus on PPI in quality and safety, nationally and internationally. Evidence suggests that PPI within patient safety is often atheoretical and located within a biomedical discourse. This review will explore the literature on PPI across patient safety, healthcare and social care to identify theory, barriers and enablers that can be used to develop PPI in patient safety.Methods and analysisSystematic searches of three electronic bibliographic databases will be conducted, using both MeSH and free-text terms to identify empirical literature published from database inception to May 2017. The screening process will involve input from at least two researchers and any disagreement will be resolved through discussion with a third reviewer. Initial inclusion and exclusion criteria have been developed and will be refined iteratively throughout the process. Data extraction from included articles will be conducted by at least two researchers using a data extraction form. Extracted information will be analysed using a narrative review approach, which synthesises data using a descriptive method.Ethics and DisseminationNo ethical approval is required for this review as no empirical data were collected. We believe that the findings and recommendations from this review will be particularly relevant for an audience of academics and policymakers. The findings will, therefore, be written up and disseminated in international peer-reviewed journals and academic conferences with a health focus. They will also be disseminated to leading health policy organisations in the NHS, such as NHS England and NHS Improvement and national policy bodies such as the Health Foundation.
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Mendes, Sheila Chagas, Juliane Vismari de Oliveira, Ana Carolina Ferrari, Katharyna Cardoso de Gois, Lucas Duarte Nicolau, Marcelo Pires de Oliveira, Francisco Sandro Menezes-Rodrigues, Maria Lúcia Tomanik Packer, Fernando Luiz Affonso Fonseca, and Flávia de Sousa Gehrke. "COVID-19: viral characterization, pathophysiology and prevention." Research, Society and Development 9, no. 9 (September 6, 2020): e750997768. http://dx.doi.org/10.33448/rsd-v9i9.7768.
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Introduction: There are seven known species of human coronavirus capable of causing respiratory diseases. The most recent is SARS-CoV-2, the etiologic agent of COVID-19. Objective: To evaluate the main characteristics of SARS-CoV-2, the pathophysiology of COVID-19 and the main measures for prevention and containment of disease progression. Methods: An integrative review was carried out between 2003 and 2020, based on: PubMed, Medline, SciELO, LILACS and Google Academic, using the descriptors: COVID-19, coronavirus, novel coronavirus, human, SARS virus, outbreak disease, viral pneumonia, all listed in MESH and DECS. Results: Of the 65 selected articles, 28 met the inclusion criteria. Conclusion: SARS-CoV-2 is an RNA virus whose protein S is involved in adsorption to the target cell membrane. It is transmitted through contact with contaminated surfaces, secretions or aerosols. In these, it remains viable for three hours, and up to three days on surfaces. Frequent hand washing, disinfecting surfaces, not sharing personal items, social distance of two meters and wearing facemasks when leaving home are recommended. Non-severe patients should be isolated at home for 14 days. Healthcare professionals should use PPE and be careful with potential sources of contamination, including urine and feces of patients during hygiene.
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Benigno de Oliveira Moura Siqueira, Hilze, Rodrigo Ramon Falconi Gomez, Simone Saltareli, Claudio Luiz da Silva, Manoel Antônio dos Santos, and Fátima Aparecida Emm Faleiros Sousa. "Domínios ético e espiritual da Dor do existir no contexto familiar de crianças com câncer: uma revisão integrativa." Nursing (São Paulo) 23, no. 260 (January 1, 2020): 3516–22. http://dx.doi.org/10.36489/nursing.2020v23i260p3516-3522.
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Objetivou-se investigar as dimensões da dor da morte em famílias de crianças com câncer. Utilizou-se o método da revisãointegrativa a partir da consulta, limitada ao período de 2005 a 2019, nas bases de dados LILACS, MEDLINE, PSYCINFO, SocINDEX,Academic Search Premier e CINAHL com os DeCS ou MeSH: “morte”/“atitude frente à morte”, “neoplasia”/“câncer, “criança” e“família”. Foram selecionados 06 artigos na íntegra não replicados, os quais correspondiam à questão pesquisada. De acordo com leitura e análise dos artigos foram encontradas as seguintes dimensões associadas à dor frente à morte/luto por câncer infantil: éticas e espirituais. Os estudos revisados evidenciaram que, a dor \da morte pode levar a refletirmos sobre a qualidade do adoecer e morrer com câncer na família, bem como, ensinar-nos caminhos metafísicos como recursos para suportarmos a dor da perda e seguirmos em frente. Portanto, esta revisão abre espaço para as necessidades destas dimensões serem mais exploradas, principalmente em comunicação do diagnóstico terminal; o espaço de espiritualidade nos locais de saúde e qualificação do manejo da dor de morte no luto, pois, tais conhecimentos poderiam ser ferramenta para facilitar o manejo da dor frente a perda de um ente querido pelo câncer infantil.
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Kuebler, Kim, Tammy Lampley, Eileene Shake, Elizabeth White-Hurst, Helen Taggart, and Debra Hagerty. "A Systematic Review: A Collaborative Partnership on Evaluating Graduate Nursing Education in Chronic Symptomatic Disease." Clinical Scholars Review 7, no. 2 (2014): 98–104. http://dx.doi.org/10.1891/1939-2095.7.2.98.
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The Institute of Medicine, the U.S. Department of Health and Human Services, and the Centers for Medicare and Medicaid are engaged in initiatives to address the escalating population of patients who are living with chronic symptomatic disease. These federal initiatives, escalating costs of care, and the increasing prevalence of chronic disease has prompted an evaluation and analysis of the academic preparation for graduate nurses who will provide care and services to this growing patient population. Graduate nurses represent nursing leadership as clinicians, educators, and researchers. These professionals require the knowledge and skills to meet the burgeoning health care demands of the largest segment of the adult American population. The objective of this systematic review was to identify and summarize the existing evidence that demonstrates the inclusion of chronic disease and its associated management in graduate nursing curriculum. A collaboration of 9 doctoral faculty members representing 5 universities preformed a comprehensive review of the literature over 5 months through the use of multiple databases and several formats of search and MeSH terms. A predefined protocol was developed to reduce bias and included the objectives, inclusion criteria, and exclusion criteria used to guide the review. Findings revealed limitations in current curriculum regarding chronic disease education specifically related to symptom and self-management.
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Zach, Theodor-Florian, and Mircea-Cristian Dudescu. "The Topological Optimization and the Design for Additive Manufacturing of a Steering Knuckle for Formula SAE Electric Vehicle." MATEC Web of Conferences 343 (2021): 04011. http://dx.doi.org/10.1051/matecconf/202134304011.
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Formula Student represents the main motorsport activity for future professionals during their academic preparation. There is intensive migration from the prototypes with an internal combustion engine to electrical vehicles. The challenge of electric vehicles is the weight of the batteries which has to be compensated. The Topological Optimization process represents a method of removing volume and mass of the component (elements of mesh) with the aid of the discretization allowed by the finite element method (FEM) until a mass or stress constraint is attained. The results come in a complex shape, the material being kept only in the stressstrain directions. The manufacturing process is usually as complex, being employed high complexity technologies such as Selective Laser Melting (SLM). Improved strength-to-weight ratio materials are to be considered to obtain the most performant design of a specific component. The present paper presents the topological optimization process of the steering knuckle for the Formula Student electric vehicle of ART-TU Team of Technical University of Cluj-Napoca. It means that the part is simulated and optimized through Ansys Static Structural and there is done post-processing of the component along with Data Validation. The conclusions consist of the viability of the Topological Optimization process when designing complex components for performance automotive.
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Barlas, Thanasis, Néstor Ramos-García, Georg Raimund Pirrung, and Sergio González Horcas. "Surrogate-based aeroelastic design optimization of tip extensions on a modern 10 MW wind turbine." Wind Energy Science 6, no. 2 (March 30, 2021): 491–504. http://dx.doi.org/10.5194/wes-6-491-2021.
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Abstract. Advanced aeroelastically optimized tip extensions are among rotor innovation concepts which could contribute to the higher performance and lower cost of wind turbines. A novel design optimization framework for wind turbine blade tip extensions based on surrogate aeroelastic modeling is presented. An academic wind turbine is modeled in an aeroelastic code equipped with a near-wake aerodynamic module, and tip extensions with complex shapes are parametrized using 11 design variables. The design space is explored via full aeroelastic simulations in extreme turbulence, and a surrogate model is fitted to the data. Direct optimization is performed based on the surrogate model seeking to maximize the power of the retrofitted turbine within the ultimate load constraints. The presented optimized design achieves a load-neutral gain of up to 6 % in annual energy production. Its performance is further evaluated in detail by means of the near-wake model used for the generation of the surrogate model and compared with a higher-fidelity aerodynamic module comprising a hybrid filament-particle-mesh vortex method with a lifting-line implementation. A good agreement between the solvers is obtained at low turbulence levels, while differences in predicted power and flapwise blade root bending moment grow with increasing turbulence intensity.
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Boyko, Mariya, and Oleksandr Dluhopolskyi. "ACADEMIC INTEGRITY IN UKRAINIAN UNIVERSITIES: CASE OF ACADEMIC IQ PROJECT IN TNPU." MEST Journal 9, no. 2 (July 15, 2021): 1–6. http://dx.doi.org/10.12709/mest.09.09.02.01.
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Karim, Sulaiman Sadaf, Amelia Pietropaolo, Andreas Skolarikos, Omar Aboumarzouk, Panagiotis Kallidonis, Thomas Tailly, Vincent de Coninck, Etienne Xavier Keller, and Bhaskar Kumar Somani. "Role of endoscopic management in synthetic sling/mesh erosion following previous incontinence surgery: a systematic review from European Association of Urologists Young Academic Urologists (YAU) and Uro-technology (ESUT) groups." International Urogynecology Journal 31, no. 1 (August 29, 2019): 45–53. http://dx.doi.org/10.1007/s00192-019-04087-5.
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Carlson, Matthew L., William R. Copeland, Colin L. Driscoll, Michael J. Link, David S. Haynes, Reid C. Thompson, Kyle D. Weaver, and George B. Wanna. "Temporal bone encephalocele and cerebrospinal fluid fistula repair utilizing the middle cranial fossa or combined mastoid–middle cranial fossa approach." Journal of Neurosurgery 119, no. 5 (November 2013): 1314–22. http://dx.doi.org/10.3171/2013.6.jns13322.
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Object The goals of this study were to report the clinical presentation, radiographic findings, operative strategy, and outcomes among patients with temporal bone encephaloceles and cerebrospinal fluid fistulas (CSFFs) and to identify clinical variables associated with surgical outcome. Methods A retrospective case series including all patients who underwent a middle fossa craniotomy or combined mastoid–middle cranial fossa repair of encephalocele and/or CSFF between 2000 and 2012 was accrued from 2 tertiary academic referral centers. Results Eighty-nine consecutive surgeries (86 patients, 59.3% women) were included. The mean age at time of surgery was 52.3 years, and the left side was affected in 53.9% of cases. The mean delay between symptom onset and diagnosis was 35.4 months, and the most common presenting symptoms were hearing loss (92.1%) and persistent ipsilateral otorrhea (73.0%). Few reported a history of intracranial infection (6.7%) or seizures (2.2%). Thirteen (14.6%) of 89 cases had a history of major head trauma, 23 (25.8%) were associated with chronic ear disease without prior operation, 17 (19.1%) occurred following tympanomastoidectomy, and 1 (1.1%) developed in a patient with a cerebral aqueduct cyst resulting in obstructive hydrocephalus. The remaining 35 cases (39.3%) were considered spontaneous. Among all patients, the mean body mass index (BMI) was 35.3 kg/m2, and 46.4% exhibited empty sella syndrome. Patients with spontaneous lesions were statistically significantly older (p = 0.007) and were more commonly female (p = 0.048) compared with those with nonspontaneous pathology. Additionally, those with spontaneous lesions had a greater BMI than those with nonspontaneous disease (p = 0.102), although this difference did not achieve statistical significance. Thirty-two surgeries (36.0%) involved a middle fossa craniotomy alone, whereas 57 (64.0%) involved a combined mastoid–middle fossa repair. There were 7 recurrences (7.9%); 2 patients with recurrence developed meningitis. The use of artificial titanium mesh was statistically associated with the development of recurrent CSFF (p = 0.004), postoperative wound infection (p = 0.039), and meningitis (p = 0.014). Also notable, 6 of the 7 cases with recurrence had evidence of intracranial hypertension. When the 11 cases that involved using titanium mesh were excluded, 96.2% of patients whose lesions were reconstructed with an autologous multilayer repair had neither recurrent CSFF nor meningitis at the last follow-up. Conclusions Patients with temporal bone encephalocele and CSFF commonly present with persistent otorrhea and conductive hearing loss mimicking chronic middle ear disease, which likely contributes to a delay in diagnosis. There is a high prevalence of obesity among this patient population, which may play a role in the pathogenesis of primary and recurrent disease. A middle fossa craniotomy or a combined mastoid–middle fossa approach incorporating a multilayer autologous tissue technique is a safe and reliable method of repair that may be particularly useful for large or multifocal defects. Defect reconstruction using artificial titanium mesh should generally be avoided given increased risks of recurrence and postoperative meningitis.