15,052 results on '"A., Muntean"'
Search Results
102. Applications of ion chromatography in food analysis
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Muntean, Edward, primary
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- 2024
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103. Sajátos nevelési igényű gyermekek mozgásfejlesztése terápiás kutya segítségével – kutatási terv
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Loredana Muntean and Éva Zita Balogh
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mozgásfejlesztés ,állatasszisztált terápia ,kutya ,SNI ,gyerekek ,Special aspects of education ,LC8-6691 - Abstract
Az állatokkal való terápiás kapcsolat a pszichés, a szomatikus és a szociális egészség szempontjából meghatározó, hiszen gazdagítja a funkcionális egész jóllétét (Bánszky és mtsai, 2012). Az állatokkal történő rendszeres kapcsolat megerősíti az emberekben a felelősségvállalás tapasztalatát, a ragaszkodást, feltétel nélküli elfogadást és szeretetet, mindemellett kialakít egyfajta biztonságérzetet bennünk, hiszen az állat léte már önmagában is csökkenti a szorongásos tüneteket, a magányt, a szociális izolációt. Emellett az álla-tokkal való közös időtöltés kedvez a különféle mozgások optimalizálásának. Jelen tanulmányban egy folyamatban lévő vizsgálat tervének bemutatására kerül sor. A vizsgálat fő célja kiemelni a kutyával asszisztált terápia fontosságát a sajátos nevelési igényű gyermekek mozgásának finomításában úgy, hogy a gyermekek heti rendszerességgel vesznek részt kutyával asszisztált terápiás foglalkozásokon, melynek során az anamnézis és a megfigyelések mellett egy, a speciális oktatásban elfogadott mérő skála segítségével (Portage skála) mérjük a gyerekek fejlődését. Feltételezésünk szerint az állatasszisztált terápia hatására a sajátos nevelési igényű gyermekek nagy-és finommozgása jelentősen pozitív irányba változik. A választott kutatási módszereink az esettanulmány és a megfigyelés. Az adatok feldolgozása egyaránt igényel kvalitatív és kvantitatív elemzést.
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- 2024
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104. Game-Based Learning: Enhancing Student Experience, Knowledge Gain, and Usability in Higher Education Programming Courses
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Zhao, Dan, Muntean, Cristina Hava, Chis, Adriana E., Rozinaj, Gregor, and Muntean, Gabriel-Miro
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Contributions: This article presents a large-scale study which investigates students' reaction to game-based learning as part of programming courses. The study focuses on knowledge acquisition, learner experience, and game usability. Background: Despite the rapid growth of the information and communication technologies (ICTs) sector, the lack of engagement with science, technology, engineering, and mathematics (STEM) subjects and high dropout rates in computer science and engineering majors is linked directly to the large number of unfilled vacancies in the ICT employment market. To tackle one of the underlying causes for this crisis, (i.e., traditional teaching paradigms struggle to attract students to rather abstract and difficult STEM subjects such as programming), innovative technology-enhanced learning solutions are sought. Intended Outcomes: A set of serious games were proposed and designed to promote students' understanding of programming concepts, improve their confidence, stimulate their interest in STEM and increase engagement with the courses through vivid and appealing scenarios. Application Design: Targeting undergraduate and postgraduate students, the games focused on several key programming topics. They were designed to visualize the programming concepts in illustrative and entertaining scenarios. A comprehensive assessment methodology which includes surveys, observations, and interviews was employed to investigate the impact of the games. Findings: The results show that by using the games in the teaching and learning process all the students have benefited, although differently based on their location, educational backgrounds, and game played. The impact of detailed demographic aspects, such as participants' use of technology, their initial attitude toward school, and learning STEM on the results needs further study.
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- 2022
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105. Upscaling of a reaction-diffusion-convection problem with exploding non-linear drift
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Raveendran, Vishnu, Cirillo, Emilio N. M., and Muntean, Adrian
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Mathematics - Analysis of PDEs ,35B27, 35Q92, 35A01 - Abstract
We study a reaction-diffusion-convection problem with nonlinear drift posed in a domain with periodically arranged obstacles. The non-linearity in the drift is linked to the hydrodynamic limit of a totally asymmetric simple exclusion process (TASEP) governing a population of interacting particles crossing a domain with obstacle. Because of the imposed large drift scaling, this nonlinearity is expected to explode in the limit of a vanishing scaling parameter. As main working techniques, we employ two-scale formal homogenization asymptotics with drift to derive the corresponding upscaled model equations as well as the structure of the effective transport tensors. Finally, we use Schauder's fixed point theorem as well as monotonicity arguments to study the weak solvability of the upscaled model posed in an unbounded domain. This study wants to contribute with theoretical understanding needed when designing thin composite materials that are resistant to high velocity impacts., Comment: 27 pages, 3 figures
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- 2022
106. Analysis of a fully discrete approximation to a moving-boundary problem describing rubber exposed to diffusants
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Nepal, Surendra, Wondmagegne, Yosief, and Muntean, Adrian
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Mathematics - Numerical Analysis ,65M15, 65M60, 35R37 - Abstract
We present a fully discrete scheme for the numerical approximation of a moving-boundary problem describing diffusants penetration into rubber. Our scheme utilizes the Galerkin finite element method for the space discretization combined with the backward Euler method for the time discretization. Besides dealing with the existence and uniqueness of solution to the fully discrete problem, we derive a \textit{a priori} error estimate for the mass concentration of the diffusants, and respectively, for the position of the moving boundary. Numerical illustrations verify the obtained theoretical order of convergence in physical parameter regimes., Comment: 20 pages, 2 figures, 2 tables
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- 2022
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107. A Mesoscopic Lattice Model for Morphology Formation in Ternary Mixtures with Evaporation
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Setta, Mario, Kronberg, Vì C. E., Muntean, Stela Andrea, Moons, Ellen, Van Stam, Jan, Cirillo, Emilio Nicola Maria, Colangeli, Matteo, and Muntean, Adrian
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Condensed Matter - Statistical Mechanics ,82B80, 80M31, 65C05 - Abstract
We develop a mesoscopic lattice model to study the morphology formation in interacting ternary mixtures with evaporation of one component. As concrete application of our model, we wish to capture morphologies as they are typically arising during fabrication of organic solar cells. In this context, we consider an evaporating solvent into which two other components are dissolved, as a model for a 2-component coating solution that is drying on a substrate. We propose a 3-spins dynamics to describe the evolution of the three interacting species. As main tool, we use a Monte Carlo Metropolis-based algorithm, with the possibility of varying the system's temperature, mixture composition, interaction strengths, and evaporation kinetics. The main novelty is the structure of the mesoscopic model -- a bi-dimensional lattice with periodic boundary conditions and divided in square cells to encode a mesoscopic range interaction among the units. We investigate the effect of the model parameters on the structure of the resulting morphologies. Finally, we compare the results obtained with the mesoscopic model with corresponding ones based on an analogous lattice model with a short range interaction among the units, i.e. when the mesoscopic length scale coincides with the microscopic length scale of the lattice., Comment: submitted to Frontiers in Physics, 23 pages, 13 figures
- Published
- 2021
108. The Flipped Classroom as an Instructional Model
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Veres, Sanda and Muntean, Adrian-Daniel
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The current national and international context has determined teachers to evaluate teaching methods and utilise active student involvement strategies in the classroom during learning processes. This article presents the Flipped Classroom instructional model, analyses its application, and proposes stages to follow in order to create a successful flipped classroom. Even though the flipped classroom instructional model is not utilised in Romania, the authors aim to attract attention to it, presenting its advantages and disadvantages. A change is due in the current teaching paradigm and it is high time to promote an innovative learning framework using the flipped classroom instructional model.
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- 2021
109. Serological evidence of human exposure to foodborne zoonotic parasites in Romanian patients and possible association with food habits and hygiene
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Briciu, Violeta, Kalmár, Zsuzsa, Ieremia, Anca, Lupșe, Mihaela, Flonta, Mirela, Muntean, Monica, Cismaru, Cristina, Horvat, Melinda, Rădulescu, Amanda, Topan, Adriana, Jianu, Cristian, and Ionică, Angela Monica
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- 2024
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110. CA-Live360: Crowd-assisted transcoding and delivery for live 360-degree video streaming
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Ma, Yunxiao, Xu, Changqiao, Wu, Zhonghui, Ding, Renjie, Xiao, Han, Zhong, Lujie, Zhuang, Yirong, and Muntean, Gabriel-Miro
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- 2024
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111. High-throughput screening of fentanyl analogs
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Miller, Samuel A., Forero, Andrew R., Tose, Lilian Valadares, Krechmer, Jordan E., Muntean, Felician, and Fernandez-Lima, Francisco
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- 2025
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112. First Pediatric HeartMate 3 Ventricular Assist Device Implantation in Romania – a Case Report
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Muntean Iolanda, Iurian Diana-Ramona, Nistor Dan Octavian, Barmou Asmaa Carla, and Suciu Horațiu
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heartmate 3 ,left ventricular assist device ,bridge-to-transplantation therapy ,dilated cardiomyopathy ,pediatric heart failure ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
The use of ventricular assist devices as bridge-to-transplantation therapy has a critical role in the management of end-stage heart failure in pediatric patients without available compatible organ donors. The HeartMate 3 is an intracorporeal centrifugal flow pump with a fully magnetically levitated motor currently approved for the management of advanced refractory left ventricular failure in pediatric patients, with positive early outcomes. We report the case of a 17-year-old adolescent girl with end-stage heart failure secondary to dilated cardiomyopathy of idiopathic etiology, with multiple failed attempts of weaning from inotropic support (PEDIMACS 3 profile), who successfully received a HeartMate 3 left ventricular assist device as bridge-to-transplantation therapy with no significant adverse events during the early follow-up period. This paper presents the first case of pediatric ventricular assist device implantation in Romania.
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- 2024
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113. Posterior Reversible Encephalopathy Syndrome, not so Uncommon in Pediatric Patients with Renal Involvement: A Case Series
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Koller Ana-Maria Roxana, Man Alexandra, and Muntean Carmen
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posterior reversible encephalopathy syndrome ,renal involvement ,clinico-radiological findings ,children ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Posterior reversible encephalopathy syndrome (PRES) primarily shows neurological symptoms and is more frequent in males, often occurring in oncological patients. It can also be associated with renal conditions like post-streptococcal glomerulonephritis, a common cause of pediatric hypertension. Management involves blood pressure and seizure treatment. In some cases, it may lead to irreversible and severe complications. Early treatment is essential for prevention.
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- 2024
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114. Understanding the pathogenesis, clinical, laboratory diagnosis and treatment of the recent monkeypox virus outbreak
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Goia Aneta-Rada, Muntean Delia, Musta Virgil, Herlo Alexandra, Vulpie Silvana, Izmendi Oana, Jumanca Romanita, and Licker Monica
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mpox ,orthopox virus ,diagnosis ,laboratory-based diagnosis ,treatment ,Medicine - Abstract
Human mpox is a zoonotic disease, caused by the mpox virus (MPXV), that can spread either between animals and humans or humans and humans. In 1970 the first human case of mpox was reported in Zaire, Democratic Republic of the Congo (DRC). Other notable human mpox outbreaks in non-endemic countries were identified in June 2003 in the United States, in July 2021 in Dallas (USA), and the most recent one in May 2022 in Europe in the United Kingdom (UK). During the 2022 outbreak, sexual intercourse was observed to be the most prevalent transmission method, although other means should not be ignored, such as the involvement of respiratory droplets, exposure to surfaces and skin suspected of contamination. In the context of the current mpox outbreak, we consider it important and necessary to correctly identify the virus, use the proper laboratory testing for a correct diagnosis of mpox, understand the means of prophylaxis, and apply the correct treatment, highlighting these facts being the aim of this study.
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- 2024
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115. Nonlinear biphasic mixture model: existence and uniqueness results
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Alam, M., Muntean, A., and Sekhar, G. P. Raja
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Mathematics - Analysis of PDEs ,76Txx, 76Zxx (Primary) 35Q74, 35D30 (Secondary) - Abstract
This paper is concerned with the development and analysis of a mathematical model that is motivated by interstitial hydrodynamics and tissue deformation mechanics (poro-elasto-hydrodynamics) within an in-vitro solid tumor. The classical mixture theory is adopted for mass and momentum balance equations for a two-phase system. A main contribution of this study, we treat the physiological transport parameter (i.e., hydraulic resistivity) as anisotropic and heterogeneous, thus the governing system is strongly coupled and nonlinear. We derived a weak formulation and then formulated the equivalent fixed-point problem. This enabled us to use the Galerkin method, and the classical results on monotone operators combined with the well-known Schauder and Banach fixed point theorems to prove the existence and uniqueness results., Comment: 30 pages, 1 figure
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- 2022
116. Identifying Processes Governing Damage Evolution in Quasi-Static Elasticity. Part 2 -- Numerical Simulations
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Grützner, Simon and Muntean, Adrian
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Mathematics - Numerical Analysis - Abstract
We investigate numerically a quasi-static elasticity system of Kachanov-type. To do so we propose an Euler time discretization combined with a suitable finite elements scheme (FEM) to handle the discretization is space. We use ODE-type arguments to prove the consistency of the scheme as well as its convergence rate. We rely on the computational platform FEniCS to perform the FEM discretizations in space needed to compute the model output. The simulation results show a good agreement with both the physics of the problem and with our previous qualitative mathematical analysis results obtained for precisely the same problem setting. Furthermore, our implementation recovers nicely the theoretically expected convergence rate. This is a preliminary study preparing the framework for the rigorous numerical identification of the damage process in Kachanov-type models., Comment: 19 pages, 43 figures
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- 2022
117. Effective medium theory for second-gradient elasticity with chirality
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Nika, Grigor and Muntean, Adrian
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Mathematics - Analysis of PDEs ,74Q05, 74B20, 35B27, 35G35, 35G45, 35J58, 35Q74 - Abstract
We derive effective, parsimonious models from a heterogeneous second-gradient nonlinear elastic material taking into account chiral scale-size effects. Our classification of the effective equations depends on the hierarchy of four characteristic lengths: The size of the heterogeneities $\ell$, the intrinsic lengths of the constituents $\ell_{\rm SG}$ and $\ell_{\rm chiral}$, and the overall characteristic length of the domain ${\rm L}$. Depending on the different scale interactions between $\ell_{\rm SG}$, $\ell_{\rm chiral}$, $\ell$, and ${\rm L}$ we obtain either an effective Cauchy continuum or an effective second-gradient continuum. The working technique combines scaling arguments with the periodic homogenization asymptotic procedure. Both the passage to the homogenization limit and the unveiling of the correctors' structure rely on a suitable use of the periodic unfolding and related operators.
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- 2022
118. Local existence of a solution to a free boundary problem describing migration into rubber with a breaking effect
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Kumazaki, Kota, Aiki, Toyohiko, and Muntean, Adrian
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Mathematics - Analysis of PDEs - Abstract
We consider a one-dimensional free boundary problem describing the migration of diffusants into rubber. In our setting, the free boundary represents the position of the front delimitating the diffusant region. The growth rate of this region is described by an ordinary differential equation that includes the effect of breaking the growth of the diffusant region. In this specific context, the breaking mechanism is assumed to be the hyperelastic response to a too fast diffusion penetration. In recent works, we considered a similar class of free boundary problems modeling diffusants penetration in rubbers, but without attempting to deal with the possibility of breaking or accelerating the occurring free boundaries. For simplified settings, we were able to show the global existence and uniqueness as well as the large-time behavior of the corresponding solutions to our formulations. Since here the breaking effect is contained in the free boundary condition, our previous results are not anymore applicable. The main mathematical obstacle in ensuring the existence of a solution is the non-monotonic structure of the free boundary. In this paper, we establish the existence and uniqueness of a weak solution to the free boundary problem with breaking effect and give explicitly the maximum value that the free boundary can reach., Comment: arXiv admin note: text overlap with arXiv:2102.12766
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- 2022
119. Metformin and empagliflozin modulate monoamine oxidase-related oxidative stress and improve vascular function in human mammary arteries
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Lascu, Ana, Ionică, Loredana N., Buriman, Darius G., Merce, Adrian P., Deaconu, Loredana, Borza, Claudia, Crețu, Octavian M., Sturza, Adrian, Muntean, Danina M., and Feier, Horea B.
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- 2023
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120. Mechanisms ‘all the way down’?
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Ioan Muntean
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Philosophy (General) ,B1-5802 - Abstract
Book review: Mechanistic Explanations in Physics and Beyond, Brigitte Falkenburg and Gregor Schiemann, editors, European Studies in Philosophy of Science, Vol. 11, Springer International Publishing, Cham 2019, pp.220
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- 2023
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121. Treatment of axial spondyloarthritis patients with biologic disease-modifying anti-rheumatic drugs in 2022 - data from the Romanian Registry of Rheumatic Diseases
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Laura Muntean, Razvan Ionescu, Corina Mogosan, Maria-Magdalena Tamas, Claudiu C. Popescu, Elena Rezus, Razvan-Constantin Ionitescu, Ana Maria Ramazan, Andrei Eugen Martin, and Catalin Codreanu
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axial spondyloarthritis ,biologics ,romanian registry of rheumatic diseases ,Medicine ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Objective. The objective of this cross-sectional study was to analyze data available in the Romanian Registry of Rheumatic Diseases (RRBR) in 2022 for axial spondyloarthritis (axSpA) patients treated with biologic disease modifying anti-rheumatic drugs (bDMARDs). Methods. From the RRBR electronic database were collected multiple variables, including patient’s demographic and clinical characteristics, treatment characteristics, patterns of treatment use (initiations, continuations, switching, tapering), and treatment efficacy data of axSpA patients, from 1 January 2022 to 31 December 2022. Results. In 2022, a total of 4315 axSpA patients were registered in the RRBR database: 70% were men, 48.4 years mean age, 13.3 years mean disease duration, 90% with radiographic axSpA, with high prevalence of extra-musculoskeletal manifestations and cardiovascular comorbidities. Most patients (88%) were treated with a tumor necrosis factor inhibitor (TNFi), usually in monotherapy. The most frequently prescribed bDMARDs were adalimumab (36%), etanercept (32%) and secukinumab (12%). The uptake of biosimilars reached one third of patients from molecules with available biosimilars in 2022. Most patients had a good clinical response, irrespective of clinical form, disease duration, type of medication or line of treatment. Medication switching was needed in 10% of patients, the main reason for switching was secondary loss of efficacy. Medication tapering was implemented in 11% of patients, and it was successful in 90% of cases. Conclusion. Data from RRBR provide a valuable real-world view of clinical practice at the national level regarding biologic treatment of axSpA patients.
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- 2023
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122. THE RESULTS ANALYSIS OF AN ECONOMIC ENTITY OF WATER DISTRIBUTION
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RAKOS (BOCA) ILEANA-SORINA, SOLOMON ALINA-GEORGIANA, STOLOJESCU BOGDAN NICOLAE, and MUNTEAN EMIL
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dynamic and structural analysis ,expenses ,efficiency ,performance ,revenues ,Commercial geography. Economic geography ,HF1021-1027 ,Economics as a science ,HB71-74 - Abstract
The authors of this study aim to carry out a dynamic and structural analysis of the revenues and expenses of an economic entity supplying drinking water, for the period 2021-2022, to highlight their evolution as a result of the increase in the water tariff. For the profitability of the activity of the analyzed economic entity, it is particularly important to know the expenses caused by the performance of the specific activity and, respectively, to identify the best ways to improve its performance. As is known, the correlated analysis of expenses and the management of financial, material, and human resources is the basis of the managerial decision-making process of an economic entity. The objective of this research is to develop an analysis of expenses related to incomes in order to highlight their evolution, as well as the factors that influence their size. The research focused on the study of specialized literature, complemented by a case study comprising the vertical analysis of the profit and loss account, as well as the dynamic and structural analysis of the expenses and revenues of a company in the targeted field. The obtained result resides in the observation that, for the analyzed entity, the revenues adversely influence the efficiency of the total expenses. The article ends with the authors’ conclusions regarding how the expenses related to the analyzed entity’s revenues evolved during the mentioned period and the effect over time of the resulting variations.
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- 2023
123. THE FUTURE OF ENDODONTICS. A SYSTEMATIC REVIEW
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Andreea-Simona Pop, Hamid Usman Choudhary, Ioana Porumb, Ramona Avram, Iulia Badea, Andrei Picos, Alexandru Badea, Paula Jiman, and Alexandrina Muntean
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endodontics ,ai ,lasers ,guided dentistry ,Dentistry ,RK1-715 - Abstract
Aim of the study The main objective of this paper is to perform an updated literature review of future endodontics trends based on the available up-to-date scientific literature to identify and describe the new techniques, new materials and their benefits or their limitations. Material and methods Electronic databases (PubMed, Wiley Online Library, Google Scholar and Web of Science) were used to perform a literature search from 2018 to 2023 using MESH terms: Endodontics, Artificial Intelligence, Lasers. After discarding duplicates, out of 1283 results, a total of 18 articles were eligible and point out how endodontic protocol may change with the onset of new technologies and procedures. Results Nanoparticle, laser, regenerative treatment, guided endodontics and artificial intelligence are the main areas that shown promising results in endodontic treatment. New materials with biological capacities will improve the long-term results. Overall, endodontic treatment tends to became more precise and the complications can be reduced. Conclusions Endodontics will see many exciting developments over the coming years, some incremental, others paradigm shifting.
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- 2023
124. IMPACT OF MOUTH BREATHING ON THE DEVELOPMENT OF THE DENTO-MAXILO-FACIAL COMPLEX IN CHILDREN AND ADOLESCENTS
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Loredana Golovcencu, Laura Răschip, Diana Mirt, Roxana Faur, Carmen Savin, Ana Sîrghe, Alina Adumitroaie, Cezar Foia, Alexandrina Muntean, Daniela Anistoroaei, and Vasilica Toma
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“oral vicious habits” ,“mouth breathing” ,“interceptive treatment” ,“children and adolescent” ,Dentistry ,RK1-715 - Abstract
Aim of the study This paper aims to identify the characteristics of mouth breathing as an oral vicious habit frequently encountered in paediatric dentistry clinical practice, evaluating the possible outcomes in regards to somatic and stomatognatic development, as well as interceptive treatment modalities. Materials and method A number of clinical case studies and review articles were evaluated, after searching databases for available papers using key words like “oral vicious habits”, “mouth breathing”, “interceptive treatment”, “children and adolescents”. Results Oral vicious habits are one of the most frequent disturbances seen by the paediatric dentist in the dental office, which often impair the child’s quality of life. Vicious habits include thumb sucking, prolonged use of a pacifier, lip biting and sucking, onycophagia (fingernail biting), bruxism, oral self-harm, mouth breathing and tongue interposition. These habits have a great impact on occlusion and muscle development, causing repetitive and complex muscular contractions, with effects varying from individual to individual depending on the frequency, period and intensity of the habit. Conclusions Mouth breathing is an oral vicious habit which can induce numerous negative effects on the development of the stomatognatic system, therefore the identification, interception and early intervention on oral breathing should be a desiderate of every paediatric dentist’s office.
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- 2023
125. Impact of Sarcopenia on Treatment Outcomes and Toxicity in Locally Advanced Rectal Cancer
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Sebastian Curcean, Alexandra Gherman, Alexandru Tipcu, Zsolt Fekete, Alina-Simona Muntean, Andra Curcean, Rares Craciun, Stefan Stanciu, and Alexandru Irimie
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sarcopenia ,locally advanced rectal cancer ,pathological complete response ,clinical complete response ,toxicity ,Medicine (General) ,R5-920 - Abstract
Background and Objectives: Sarcopenia, a condition characterized by muscle mass loss, is prevalent in up to 68% of rectal cancer patients and has been described as a negative prognostic factor, impacting overall survival and tumor response. While there are extensive data on rectal cancer globally, only a handful of studies have evaluated the role of sarcopenia in locally advanced rectal cancer (LARC). Our study aimed to investigate the relationship between sarcopenia, overall response rate, and toxicity in patients who underwent total neoadjuvant treatment (TNT) for LARC. Materials and Methods: We performed a retrospective study of patients with rectal cancer treated with TNT and surgery with curative intent between 2021 and 2023 at Prof. Dr. Ion Chiricuta Institute of Oncology, Cluj-Napoca. Sarcopenia was assessed on MRI images by measuring the psoas muscle area (PMA) at the level of the L4 vertebra before and after neoadjuvant therapy. The primary endpoints were the overall complete response rate (oCR) and acute toxicity. Results: This study included 50 patients with LARC. The oCR rate was 18% and was significantly associated with post-treatment sarcopenia (OR 0.08, p = 0.043). Patients who did not achieve a clinical or pathologic complete response had, on average, an 8% muscle loss during neoadjuvant therapy (p = 0.022). Cystitis and thrombocytopenia were significantly associated with post-treatment sarcopenia (p = 0.05 and p = 0.049). Conclusions: Sarcopenia and loss of psoas muscle during neoadjuvant therapy were negatively associated with tumor response in locally advanced rectal cancer. Thrombocytopenia and cystitis are more frequent in sarcopenic than non-sarcopenic patients undergoing neoadjuvant chemoradiation for rectal cancer.
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- 2024
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126. Influence of Longitudinal Fragmentation on Length–Weight Relationships of Fishes in the Someșul Cald River, Romania
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Paul Uiuiu, Radu Constantinescu, Tudor Păpuc, George-Cătălin Muntean, Maria Cătălina Matei-Lațiu, Anca Becze, Daniel Cocan, Călin Lațiu, and Cristian Olimpiu Martonoș
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allometry ,dam ,Fulton condition factor ,relative condition factor ,reservoir ,somatic indices ,Biology (General) ,QH301-705.5 ,Genetics ,QH426-470 - Abstract
Romania has a rich hydrographic network, which permitted the construction of over 80 large dams on its water courses, estimating a number between 545 and 674 hydropower plants that were either built or were in a different construction stage on the rivers of Romania in 2021. These hydropower plants were often built outside specific legislation regarding ecological impacts, especially before 1990. Longitudinal fragmentation of rivers causes severe ecological impacts on biodiversity, food chains, and nutrient cycles. Someșul Cald River is the main tributary of Someșul Mic River, the most important water source for the northwestern region of Transylvania. On its course, several dams and reservoirs were built from 1968 to 1980 for electricity production and population freshwater supply. The present study aimed to analyze the length–weight relationships (LWRs) and condition factors occurring in the longitudinally fragmented Someșul Cald River. The LWRs, relative condition factor Kn, and Fulton condition factor K were determined based on total length and wet body weight. Comparisons of LWRs, Kn, and K across river sections constrained by dams showed that some fish species exhibited similar growth patterns and physiological conditions, while others differed significantly. Freshwater fish physiology is altered by longitudinal fragmentation, both natural and artificial. Barriers such as dams influence the energy gradient, limiting feed availability and, consequently, the life history of fish species. Long-term management plans regarding conservation should take into consideration existing fish species population dynamics, along with their physiological and somatic status.
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- 2024
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127. Respiratory Muscle Strength as a Predictor of VO2max and Aerobic Endurance in Competitive Athletes
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Gökhan Deliceoğlu, Banu Kabak, Veli O. Çakır, Halil İbrahim Ceylan, Muntean Raul-Ioan, Dan Iulian Alexe, and Valentina Stefanica
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maximum inspiratory pressure ,cardiopulmonary test ,maximum expiratory pressure ,athletes ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
This study explores the association of respiratory muscle strength with aerobic endurance kinetics among athletes, with a specific focus on maximal oxygen consumption (VO2max). Previous research has elucidated the complex interactions between respiratory and skeletal muscles during exercise, highlighting the critical role of efficient respiration in maximizing athletic performance. The interplay between active skeletal muscles and respiratory muscles, especially the influence of respiratory muscle fatigue on exercise capacity, is well-documented. High-intensity exercise has been shown to activate the respiratory muscle metaboreflex, which can restrict blood flow to working muscles, thereby impacting the energy required for respiration. A total of 41 athletes, drawn from the disciplines of biathlon, judo, and cross-country, participated in this study. Respiratory function tests (RFTs) were administered to assess various respiratory parameters, including changes in chest circumference. Additionally, maximal oxygen consumption (VO2max) and heart rate were measured during a treadmill test. To explore the associations between VO2max and ventilatory parameters—namely, ventilation (VE), oxygen consumption (VO2), carbon dioxide production (VCO2)—as well as respiratory metrics, linear regression analysis was employed. Based on the standardized regression coefficients (β), it was found that maximum expiratory pressure (MEP) (mean ± SD: 130.95 ± 42.82) and inspiratory diaphragmatic circumference values were significantly associated with VE, VO2, and VCO2. Conversely, the other predictor variables did not exhibit a significant effect on VE (mean ± SD: 134.80 ± 36.69), VO2 (mean ± SD: 3877.52 ± 868.47 mL), and VCO2 (mean ± SD: 4301.27 ± 1001.07 mL). Similarly, measurements of chest circumference (mean ± SD: 91.40 ± 10.72 cm), MEP, and diaphragmatic circumference during inspiration (mean ± SD: 95.20 ± 10.21 cm) were significantly associated with VO2max (mean ± SD: 58.52 ± 10.74 mL/kg/min), while the remaining predictor variables did not demonstrate a significant effect on VO2max. Additionally, a multiple linear regression analysis was conducted to examine the combined effects of respiratory muscle strength and ventilatory factors on VO2max. The model, which included interaction terms, explained 89.9% of the variance in VO2max (R2 = 0.899, adjusted R2 = 0.859). Significant interactions were found between MIP and VE (B = −0.084, p = 0.006), as well as MEP and VE (B = 0.072, p = 0.012). These findings suggest that respiratory muscle strength plays a more substantial role in determining VO2max in individuals with higher ventilatory efficiency, highlighting the importance of both respiratory strength and breathing efficiency in aerobic performance. Our findings underscore the importance of considering respiratory muscle strength in assessing and enhancing athletes’ aerobic performance. Integrating objective measurements such as maximal inspiratory and expiratory pressure assessments into routine performance evaluations allows coaches and sports scientists to monitor changes in respiratory function over time and adjust training protocols accordingly.
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- 2024
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128. Local Drug Delivery Systems as Novel Approach for Controlling NETosis in Periodontitis
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Adina Bianca Boșca, Elena Dinte, Carmen Mihaela Mihu, Alina Elena Pârvu, Carmen Stanca Melincovici, Alina Simona Șovrea, Mariana Mărginean, Anne-Marie Constantin, Anida-Maria Băbțan, Alexandrina Muntean, and Aranka Ilea
- Subjects
NETosis ,polymorphonuclear neutrophils ,periodontitis ,local drug delivery systems ,diagnostic biomarkers ,Pharmacy and materia medica ,RS1-441 - Abstract
Periodontitis is a chronic inflammation caused by periodontopathogenic bacteria in the dental biofilm, and also involves the inflammatory-immune response of the host. Polymorphonuclear neutrophils (PMNs) play essential roles in bacterial clearance by multiple mechanisms, including the formation of neutrophil extracellular traps (NETs) that retain and destroy pathogens. During PD progression, the interaction between PMNs, NETs, and bacteria leads to an exaggerated immune response and a prolonged inflammatory state. As a lesion matures, PMNs accumulate in the periodontal tissues and die via NETosis, ultimately resulting in tissue injury. A better understanding of the role of NETs, the associated molecules, and the pathogenic pathways of NET formation in periodontitis, could provide markers of NETosis as reliable diagnostic and prognostic tools. Moreover, an assessment of NET biomarker levels in biofluids, particularly in saliva or gingival crevicular fluid, could be useful for monitoring periodontitis progression and treatment efficacy. Preventing excessive NET accumulation in periodontal tissues, by both controlling NETs’ formation and their appropriate removal, could be a key for further development of more efficient therapeutic approaches. In periodontal therapy, local drug delivery (LDD) systems are more targeted, enhancing the bioavailability of active pharmacological agents in the periodontal pocket and surrounding tissues for prolonged time to ensure an optimal therapeutic outcome.
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- 2024
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129. B7H3 Immune Checkpoint Overexpression Is Associated with Decreased Complete Response Rates to Neoadjuvant Therapy in Locally Advanced Rectal Cancer
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Sebastian Curcean, Raluca Maria Hendea, Rares Buiga, Alexandru Tipcu, Andra Curcean, Catalin Vlad, Zsolt Fekete, Alina-Simona Muntean, Daniela Martin, and Alexandru Irimie
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B7H3 ,locally advanced rectal cancer ,radiotherapy ,complete response ,Medicine (General) ,R5-920 - Abstract
Background and Objectives: Rectal cancer accounts for approximately one-third of colorectal cancers, with over 340,000 deaths globally in 2022. Despite advancements in treatment, the five-year overall survival for locally advanced rectal cancer (LARC) remains at 74%, with significant morbidity. B7H3 (CD276), an immune checkpoint protein, plays a role in tumor progression and resistance to therapy, and correlates with poor prognosis in various cancers, including colorectal cancer. This study aims to evaluate the expression of B7H3 in LARC and its impact on overall complete response (oCR) rates to neoadjuvant therapy. Methods: A retrospective study was conducted on 60 patients with LARC who received neoadjuvant chemoradiation (nCRT) followed by total mesorectal excision (TME). B7H3 expression was assessed using immunohistochemistry on surgical specimens. Expression levels were categorized as high or low based on a composite score, and their association with oCR rates was analyzed. Results: High B7H3 expression was observed in 60% of patients, with 73.5% showing expression in more than 50% of tumor cells. Patients who achieved oCR had significantly lower B7H3 expression compared to those with residual disease (p < 0.001). No nuclear expression of B7H3 was detected. No significant correlation was found between B7H3 expression and other clinicopathological variables, except for a higher likelihood of non-restorative surgery in patients with elevated B7H3 levels (p = 0.049). Mucinous adenocarcinoma had high expression of B7H3. Conclusions: Elevated B7H3 expression is associated with reduced oCR rates in LARC, highlighting its potential role as a prognostic biomarker. Further studies with larger cohorts are warranted to validate these findings and explore B7H3-targeted therapies as a treatment strategy for LARC.
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- 2024
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130. From social norms to pro-environmental behavior: The role of destination social responsibility for families traveling with children
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Sorcaru, Iulian Adrian, Muntean, Mihaela-Carmen, Manea, Ludmila-Daniela, and Nistor, Rozalia
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- 2024
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131. An innovative NSGA-II-based Byzantine Fault Tolerant solution for software defined network environments
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Ahmed, Waqas, Shah, Nadir, and Muntean, Gabriel-Miro
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- 2024
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132. A Qualitative Evaluation of ChatGPT4 and PaLM2’s Response to Patient’s Questions Regarding Age-Related Macular Degeneration
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George Adrian Muntean, Anca Marginean, Adrian Groza, Ioana Damian, Sara Alexia Roman, Mădălina Claudia Hapca, Anca Mădălina Sere, Roxana Mihaela Mănoiu, Maximilian Vlad Muntean, and Simona Delia Nicoară
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ChatGPT4 ,large language model ,age-related macular degeneration ,question ,qualitative evaluation ,Medicine (General) ,R5-920 - Abstract
Patient compliance in chronic illnesses is essential for disease management. This also applies to age-related macular degeneration (AMD), a chronic acquired retinal degeneration that needs constant monitoring and patient cooperation. Therefore, patients with AMD can benefit by being properly informed about their disease, regardless of the condition’s stage. Information is essential in keeping them compliant with lifestyle changes, regular monitoring, and treatment. Large language models have shown potential in numerous fields, including medicine, with remarkable use cases. In this paper, we wanted to assess the capacity of two large language models (LLMs), ChatGPT4 and PaLM2, to offer advice to questions frequently asked by patients with AMD. After searching on AMD-patient-dedicated websites for frequently asked questions, we curated and selected a number of 143 questions. The questions were then transformed into scenarios that were answered by ChatGPT4, PaLM2, and three ophthalmologists. Afterwards, the answers provided by the two LLMs to a set of 133 questions were evaluated by two ophthalmologists, who graded each answer on a five-point Likert scale. The models were evaluated based on six qualitative criteria: (C1) reflects clinical and scientific consensus, (C2) likelihood of possible harm, (C3) evidence of correct reasoning, (C4) evidence of correct comprehension, (C5) evidence of correct retrieval, and (C6) missing content. Out of 133 questions, ChatGPT4 received a score of five from both reviewers to 118 questions (88.72%) for C1, to 130 (97.74%) for C2, to 131 (98.50%) for C3, to 133 (100%) for C4, to 132 (99.25%) for C5, and to 122 (91.73%) for C6, while PaLM2 to 81 questions (60.90%) for C1, to 114 (85.71%) for C2, to 115 (86.47%) for C3, to 124 (93.23%) for C4, to 113 (84.97%) for C5, and to 93 (69.92%) for C6. Despite the overall high performance, there were answers that are incomplete or inaccurate, and the paper explores the type of errors produced by these LLMs. Our study reveals that ChatGPT4 and PaLM2 are valuable instruments for patient information and education; however, since there are still some limitations to these models, for proper information, they should be used in addition to the advice provided by the physicians.
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- 2024
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133. Untangling Cables: A Case Study of the Life & Afterlife of Digital Devices in Academic Research.
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Reese Muntean, Kate Hennessy, Chelsea Mills, and Alissa Nicole Antle
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- 2024
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134. Sensing Heritage: Exploring Creative Approaches for Capturing, Experiencing and Safeguarding the Sensorial Aspects of Cultural Heritage.
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Sophia Ppali, Marina Pasia, Sara Wolf, Jihae Han, Reese Muntean, Minyoung Yoo, Kasper Rodil, Arne Berger, Andreas Papallas, Luigina Ciolfi, John Stevens, and Alexandra Covaci
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- 2024
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135. A continuum model for morphology formation from interacting ternary mixtures: Simulation study of the formation and growth of patterns
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Lyons, Rainey, Muntean, Stela Andrea, Cirillo, Emilio N.M., and Muntean, Adrian
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- 2023
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136. Reduced Markovian Descriptions of Brownian Dynamics: Toward an Exact Theory
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Colangeli, Matteo and Muntean, Adrian
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Condensed Matter - Statistical Mechanics - Abstract
We outline a reduction scheme for a class of Brownian dynamics which leads to meaningful corrections to the Smoluchowski equation in the overdamped regime. The mobility coefficient of the reduced dynamics is obtained by exploiting the Dynamic Invariance principle, whereas the diffusion coefficient fulfils the Fluctuation-Dissipation theorem. Explicit calculations are carried out in the case of a harmonically bound particle. A quantitative pointwise representation of the reduction error is also provided and connections to both the Maximum Entropy method and the linear response theory are highlighted. Our study paves the way to the development of reduction procedures applicable to a wider class of diffusion processes.
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- 2021
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137. Aptamer-conjugated gold nanoparticles for portable, ultrasensitive naked-eye detection of C-reactive protein based on the Tyndall effect
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Hada, Alexandru-Milentie, Suarasan, Sorina, Muntean, Mara, Potara, Monica, and Astilean, Simion
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- 2024
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138. Phase separation and morphology formation in interacting ternary mixtures under evaporation: Well-posedness and numerical simulation of a non-local evolution system
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Lyons, Rainey, Cirillo, Emilio N.M., and Muntean, Adrian
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- 2024
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139. Multiscale simulation of colloids ingressing porous layers with evolving internal structure: A computational study
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Nikolopoulos, Christos, Eden, Michael, and Muntean, Adrian
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- 2023
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140. A retrospective study regarding the influence of COVID-19 disease on asthma
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Muntean, Ioana Adriana, Leru, Polliana Mihaela, Pintea, Irena, Bocsan, Ioana Corina, Dobrican, Carmen Teodora, and Deleanu, Diana
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- 2023
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141. Toward microfluidic SERS and EC-SERS applications via tunable gold films over nanospheres
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Falamas, Alexandra, Cuibus, Denisa, Tosa, Nicoleta, Brezestean, Ioana, Muntean, Cristina M., Milenko, Karolina, Vereshchagina, Elizaveta, Moldovan, Rebeca, Bodoki, Ede, and Farcau, Cosmin
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- 2023
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142. The use of chitosan and an inactivated yeast to reduce the amount of sulfur dioxide in wine
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Alexandra Doina SÎRBU, Liliana Lucia TOMOIAGĂ, Maria COMŞA, Vlad BOTEA, Maria-Doiniţa MUNTEAN, Horia-Silviu RĂCOARE, Laura ENACHE, and Veronica Sanda CHEDEA
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Bactiless ,Longevity ,sulfur dioxide ,wine ,Food processing and manufacture ,TP368-456 - Abstract
This study aims to evaluate the sulfur dioxide dynamics in two wines, dry white wine Fetească albă and dry red wine Fetească neagră made in Târnave vineyard, and to observe their evolution after application of Bactiless and Longevity to lower the level of SO2. The wines from 2020 harvest were produced using traditional winemaking techniques. The experimental variants were: Control, Longevity (20, 30, 40, 0, and 40 g/hL) with Bactiless (20, 35, 50, 50 and 0 g/hL). For all the samples studied in this work, it was determined a decrease concentration of free and total sulfur dioxide. The best results obtained for the Fetească albă wine was the decrease of free SO2 from 35.00 mg/L to 25.33±0.60 mg/L and total SO2 from 120.50 mg/L to 117.50 mg/L by using 50 g/hL of Bactiless (CFAV4). For the Fetească neagră wine, the best results obtained were the decrease of free SO2 from 32.50±0.29 mg/L to 14.83±0.18 mg/L and total SO2 from 85.00±0.87 mg/L to 75.00±0.86 mg/L by adding 40 g/hL of Longevity and 50 g/hL of Bactiless (CFNV3). With an allowed SO2 concentration, the evaluated wines maintained their varietal characteristics and organoleptic properties.
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- 2024
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143. Comparative Study on Beta-Glucan Content and Proximate Composition of Spring Barley Seeds Genotypes Obtained in Different Crop Systems
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Raluca MĂRGINEAN, Edward MUNTEAN, Laura ȘOPTEREAN, Alina ȘIMON, Florin RUSSU, and Marcel M. DUDA
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spring barley ,beta-glucan ,proximate composition ,chemometry ,analysis ,quality ,Food processing and manufacture ,TP368-456 - Abstract
This paper explores the proximate composition of spring barley seeds and the b-glucan’s content in various two-rowed spring barley genotypes cultivated using different agricultural systems. The genotypes originated from both autochthonous and foreign sources and were grown under conventional, ecological, and no-treatment conditions. The proximate analysis of spring barley seeds was performed using near-infrared spectrometry, while the b-glucan content was determined enzymatically. The data analysis included principal component analysis and cluster analysis to identify ideal candidates for specific applications. The results indicated that the conventional cultivation system yielded higher levels of starch, sugar, protein and ash content; conversely, the ecological and no-treatment systems showed variations in nutritional parameters, with the no-treatment approach resulting in significantly higher b-glucan and fat content. In line with previous research, this study highlights the influence of genotype and agricultural practices on the barley seeds’ composition. Overall, this research contributes to a better understanding of the nutritional composition of barley seeds and offers insights into selecting specific barley genotypes for various applications in the food, feed, and brewing industries; it also underscores the potential for utilizing spring barley's b-glucan to enhance the nutritional value of various products, promoting cardiovascular and digestive health.
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- 2024
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144. Cultivars Ploidy Influence on Variability of Some Red Clover Traits Important for Agriculture and Medicinal Purpose
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Alexandru D. COSTIN, Leon MUNTEAN, Andreea D. ONA, and Mihai C. POPA
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diploid ,perennial ,red clover cultivars ,tetraploid ,Food processing and manufacture ,TP368-456 - Abstract
Red clover also known as Trifolium pratense L., is a perennial allogame plant belonging to Trifolium genus and Fabaceae family. Besides its benefits in animal feed and soil improvement, red clover was studied as well for its medicinal properties, being used in different forms like essential oil, tea, pills and other. This study aimed to perform a comparative analysis on some diploid and tetraploid red clover cultivars regarding morphological and biochemical traits. The study was carried out between 2022 and 2023 on 90 red clover cultivars, divided into two samples represented by diploids and tetraploids. Tetraploids were superior to diploids in the 2nd year and inferior in the 3rd year. Regarding the polyphenols content, diploids showed higher values than tetraploids. Between diploids and tetraploids, there was a significant difference in the number of inflorescences/50g and inflorescence weight from the 3rd year.
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- 2024
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145. The Impact of Digitization of Intensive Care Services on Patient Safety in the Pius Brânzeu Emergency County Hospital in Timişoara
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Corina VERNIC, Sebastian-Aurelian ŞTEFĂNIGĂ, Angela-Simona APOSTOL, and Călin MUNTEAN
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digital health ,electronic health records (ehrs) ,patient safety ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
This thorough analysis explains the various effects of using digital technology for anesthesia and intensive care services at Pius Brânzeu (P.B.) Emergency County Hospital, emphasizing how it improves patient safety. Digital technology in healthcare, especially in critical and changing areas like anesthesia and intensive care, has both positive and negative aspects. The digitization initiative seeks to improve patient monitoring accuracy by using cutting-edge technologies such as EEG, BIS, and cardiovascular output measurements, which are essential for patient care during surgery. By allowing instant, centralized data integration, these systems increase the accuracy of monitoring and enable prompt clinical decisions, thereby potentially lowering the risk of critical incidents that traditionally occurred due to late or missed identifications of physiological abnormalities. However, the transition to electronic health records (EHRs) and digital monitoring tools introduces new challenges, primarily concerning data management, system reliability, and user interaction with complex interfaces. Concerns about the human factors integration of computerized physician order entry (CPOE) systems exemplify potential setbacks, including the risk of increased medication errors and the failure of technology during critical use. Studies have shown that digital health technology can lead to significant improvements in patient safety and outcomes. For example, a study published in the Journal of the American Medical Association found that EHRs were associated with a 17% reduction in medication errors. Another study, published in the Journal of Clinical Anesthesia, found that CPOE was associated with a 50% reduction in anesthesia-related errors. Furthermore, this move towards digital solutions poses serious security and privacy challenges. The danger of data access and breaches by unauthorized parties could threaten patient confidentiality and safety, requiring strong cybersecurity policies. Moreover, the effective use of digital technologies relies greatly on extensive training programs for healthcare professionals to ensure competence and reduce risks related to new system interfaces. The hospital's method also involves thorough system checks and partnerships between IT and healthcare teams to ensure successful execution and flexibility to the evolving technological environment. These tactics aim to protect patient data accuracy and maintain the standard of clinical care. In the end, while the digital transformation of anesthesia and intensive care offers great potential for improving patient safety and care quality, it demands careful attention to possible risks, user education, and constant system assessment to achieve its full benefits and ensure lasting enhancements in patient outcomes.
- Published
- 2024
146. Creating Medical Datasets using Robot Process Automation
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Iulian ROMAN, Călin MUNTEAN, and Sebastian-Aurelian ŞTEFĂNIGĂ
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datasets ,robot process automation ,uipath ,data collection ,data extraction ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
A dataset is a collection of information, usually structured in a format that can be used in research or training various applications such as machine learning. Datasets are fundamental to many analytical processes because they provide raw data that can be used in different applications. While some datasets are readily available, others must be specially curated. Creating a dataset often involves automated data collection methods, with web scraping being a popular technique. Web scraping employs scripts to extract data from online sources, demanding robust programming skills and considerable maintenance effort. It is important to note that the method can break site policies because it may violate terms of service agreements. A proposed solution for gathering the required information is to create a Robot Process Automation (RPA) flow, which collects information from various sources as a normal user would do manually. A use case of RPA flow involves using it to compile a medical dataset that contains information about clinical trials for various drugs. The dataset will be utilized in researching the effects of placebo drugs on people. The information is available on the clinicaltrails.gov site and the results of different trials can be downloaded manually as files. Automating this process can be done by creating a flow in UiPath by linking predefined activity blocks, which simplifies the creation and maintenance of the workflow. Running the flow will follow the steps that a normal user would do for downloading the results of different trials from the site. This approach eases data collection, allowing medical staff to generate datasets, without the need for deep technical skills, that can be used in different investigations. In conclusion, an RPA flow is a straightforward way to gather information for a dataset, circumventing the complexities of traditional programming-based approaches like web scraping.
- Published
- 2024
147. Monitoring and Modelling of Extreme Hydrometeorological Events
- Author
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Maftei, Carmen, primary, Muntean, Radu, additional, and Vaseashta, Ashok, additional
- Published
- 2023
- Full Text
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148. Valorification of Waste for Sustainable Concrete Production
- Author
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Cobirzan, Nicoleta, primary, Muntean, Radu, additional, and Felseghi, Raluca-Andree, additional
- Published
- 2023
- Full Text
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149. Scaling effects on the periodic homogenization of a reaction-diffusion-convection problem posed in homogeneous domains connected by a thin composite layer
- Author
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Raveendran, Vishnu, Cirillo, Emilio N. M., de Bonis, Ida, and Muntean, Adrian
- Subjects
Mathematics - Analysis of PDEs ,35B27, 35Q92 - Abstract
We study the question of periodic homogenization of a variably scaled reaction-diffusion problem with non-linear drift posed for a domain crossed by a flat composite thin layer. The structure of the non-linearity in the drift was obtained in earlier works as hydrodynamic limit of a totally asymmetric simple exclusion process (TASEP) process for a population of interacting particles crossing a domain with obstacle. Using energy-type estimates as well as concepts like thin-layer convergence and two-scale convergence, we derive the homogenized evolution equation and the corresponding effective model parameters for a regularized problem. Special attention is paid to the derivation of the effective transmission conditions across the separating limit interface in essentially two different situations: (i) finitely thin layer and (ii) infinitely thin layer. This study should be seen as a preliminary step needed for the investigation of averaging fast non-linear drifts across material interfaces -- a topic with direct applications in the design of thin composite materials meant to be impenetrable to high-velocity impacts., Comment: 41 pages, 5 figures
- Published
- 2021
150. Semantic Segmentation Alternative Technique: Segmentation Domain Generation
- Author
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Rogoz, Ana-Cristina, Muntean, Radu, and Cobeli, Stefan
- Subjects
Computer Science - Computer Vision and Pattern Recognition ,Computer Science - Machine Learning ,Electrical Engineering and Systems Science - Image and Video Processing - Abstract
Detecting objects of interest in images was always a compelling task to automate. In recent years this task was more and more explored using deep learning techniques, mostly using region-based convolutional networks. In this project we propose an alternative semantic segmentation technique making use of Generative Adversarial Networks. We consider semantic segmentation to be a domain transfer problem. Thus, we train a feed forward network (FFNN) to receive as input a seed real image and generate as output its segmentation mask., Comment: Accepted contribution at EEML2021 with poster presentation
- Published
- 2021
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