TY - JOUR AU - Szabó, Máté TI - Building Ensemble Models with Web Services on Microservice Architecture JF - INFORMATICA-JOURNAL OF COMPUTING AND INFORMATICS J2 - INFORMATICA (LJUBLJANA) VL - 48 PY - 2024 IS - 7 SP - 1 EP - 10 PG - 10 SN - 0350-5596 DO - 10.31449/inf.v48i7.4918 UR - https://m2.mtmt.hu/api/publication/34805117 ID - 34805117 LA - English DB - MTMT ER - TY - JOUR AU - Kiss, Emőke AU - Mester, Tamás AU - Balla, Dániel TI - A klímaaggodalmak és környezetbarát viselkedés kapcsolatának és jellemzőinek feltárása Debrecenben JF - TERÜLETI STATISZTIKA J2 - TERÜLETI STATISZTIKA PY - 2024 SN - 0018-7828 UR - https://m2.mtmt.hu/api/publication/34801314 ID - 34801314 AB - A klímaváltozás kihívásainak és alkalmazkodási lehetőségeinek elemzésekor a klímaaggodalmak és a környezetbarát viselkedés kapcsolatának kérdésköre is gyakran felvetődik. A 2020-ban kitört COVID-19 világjárvány elterelte az emberek figyelmét a klímaváltozásról, így a lakosság klímaaggodalmainak feltárása nagyon fontossá vált ebben az időszakban. Kutatásunkban mintaterületként egy kelet-közép-európai várost, Magyarország második legnépesebb települését, Debrecent, Hajdú-Bihar vármegyeszékhelyét választottuk. Munkánk során kérdőíves felmérést végeztünk 2020-ban a lakosok körében (N=200). Tanulmányunk fő célja a klímaaggodalmak és a környezetbarát viselkedés kapcsolatának vizsgálata és feltárása volt. A klímaaggodalom, a környezetbarát viselkedés és a kiválasztott prediktorok közötti kapcsolat szorosságát, erősségét és intenzitását korrelációelemzéssel vizsgáltuk, a regresszióelemzés a kiválasztott változók hatását és kapcsolatát vizsgálta. Kimutattuk, hogy a lakosok Klímaaggodalom Indexe (KAI) és Környezetbarát Viselkedés Indexe (KVI) magas. Kutatásunkban a korrelációelemzés egyik legfontosabb eredménye, hogy a KAI és KVI között egyáltalán nem találtunk szignifikáns kapcsolatot, tehát a kettő nem függött össze mintánkban. Másik fontos eredményük, hogy a KVI és a Kockázatérzékelés Indexek (KI) között sem mutatható ki szignifikáns kapcsolat, ugyanakkor a KAI és a KI között szignifikánsan pozitív irányú, közepes erősségű kapcsolatot fedeztünk fel. A többváltozós lineáris regresszióelemzésekben a demográfiai faktorok csak enyhén mérsékelték a változók hatását a KAI-ra és KVI-re. Eredményeink alátámasztják azokat a tanulmányokat, amelyek szerint az egyének klímaaggodalma nem vezet következetesen környezetbarát magatartáshoz. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Oláh, Csaba Zsolt AU - Czakó, Judit AU - Godó, Zoltán Attila AU - Farkas, Mária AU - Papp, Miklós AU - Czabajszki, Máté TI - Co-infection of SARS-CoV-2 and Clostridioides difficile in elderly patients treated in a neurosurgery postoperative care unit (Idegsebészeti posztoperatív őrzőben kezelt idős betegek SARS-CoV-2 és Clostridioides difficile kombinált fertőzése) JF - ORVOSI HETILAP J2 - ORV HETIL VL - 165 PY - 2024 IS - 12 SP - 464 EP - 469 PG - 6 SN - 0030-6002 DO - 10.1556/650.2024.32975 UR - https://m2.mtmt.hu/api/publication/34780693 ID - 34780693 AB - A COVID–19-pandémia során fellépő Clostridioides difficile fertőzés incidenciájával kapcsolatban egymással ellentétes eredmények ismertek: számos tanulmány szerint növekedett, míg más tanulmányok szerint csökkent. A második COVID–19-hullám tetőfokán idegsebészeti posztoperatív őrzőnkben 11, intenzív ellátást igénylő beteget kezeltünk. A 11 betegből 7 COVID–19-pozitív lett, és közülük 4 betegnél még C. difficile fertőzés is kialakult. A 4-ből 2 beteget elveszítettünk. Bár megfigyeléseinket kevés beteg ellátása során gyűjtöttük, úgy ítéljük meg, hogy súlyos állapotú betegeknél a SARS-CoV-2 és a C. difficile együttes fertőzése többletkockázatot jelent. A COVID–19-ben alkalmazott, széles spektrumú szisztémás antibiotikumok használata növelheti a C. difficile infekció rizikóját. Jól átgondolt infekciókontroll, a megfelelő higiéné betartása, az alkoholos kézfertőtlenítők mellett a rendszeres szappanos kézmosások mérsékelhetik a nosocomialis C. difficile fertőzések számát. Orv Hetil. 2024; 165(12): 464–469. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Fábri, Csaba AU - Csehi, András AU - Halász, Gábor AU - Cederbaum, Lorenz S. AU - Vibók, Ágnes TI - Classical and quantum light-induced non-adiabaticity in molecular systems JF - AVS QUANTUM SCIENCE J2 - AVS QUANTUM SCI VL - 6 PY - 2024 IS - 2 PG - 19 SN - 2639-0213 DO - 10.1116/5.0191522 UR - https://m2.mtmt.hu/api/publication/34779048 ID - 34779048 N1 - Funding Agency and Grant Number: NKFIH [K128396, K146096]; HUN-REN Hungarian Research Network; Deutsche Forschungsgemeinschaft (DFG) [CE 10/56-1]; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences [BO/00474/22/11] Funding text: The authors are indebted to NKFIH for funding (Grant Nos. K128396 and K146096). The work performed in Budapest received funding from the HUN-REN Hungarian Research Network. Financial support by the Deutsche Forschungsgemeinschaft (DFG) (Grant No. CE 10/56-1) is gratefully acknowledged. A.C. is grateful for the support of the Janos Bolyai Research Scholarship (No. BO/00474/22/11) of the Hungarian Academy of Sciences. L.S.C., & Aacute;.V., and G.J.H. thank Nimrod Moiseyev for many fruitful discussions and for a long-term collaboration. & Aacute;.V. thanks Claudiu Genes for valuable discussions. AB - The exchange of energy between electronic and nuclear motion is the origin of non-adiabaticity and plays an important role in many molecular phenomena and processes. Conical intersections (CIs) of different electronic potential energy surfaces lead to the most singular non-adiabaticity and have been intensely investigated. The coupling of light and matter induces conical intersections, which are termed light-induced conical intersections (LICIs). There are two kinds of LICIs, those induced by classical (laser) light and those by quantum light like that provided by a cavity. The present work reviews the subject of LICIs, discussing the achievements made so far. Particular attention is paid to comparing classical and quantum LICIs, their similarities and differences and their relationship to naturally occurring CIs. In contrast to natural CIs, the properties of which are dictated by nature, the properties of their light-induced counterparts are controllable by choosing the frequency and intensity (or coupling to the cavity) of the external light source. This opens the door to inducing and manipulating various kinds of non-adiabatic effects. Several examples of diatomic and polyatomic molecules are presented covering both dynamics and spectroscopy. The computational methods employed are discussed as well. To our opinion, the young field of LICIs and their impact shows much future potential. LA - English DB - MTMT ER - TY - JOUR AU - Kátai, Zoltán AU - Osztián, Pálma Rozália AU - Iclanzan, Dávid András TI - Enacting algorithms: Evolution of the algorythmics storytelling JF - EDUCATION AND INFORMATION TECHNOLOGIES J2 - EDUC INF TECHNOL VL - 29 PY - 2024 SP - 1 SN - 1360-2357 DO - 10.1007/s10639-024-12617-y UR - https://m2.mtmt.hu/api/publication/34778079 ID - 34778079 AB - Visual storytelling, particularly through dance choreographies as showcased in previous AlgoRythmics performances, has been effective in communicating relatively straightforward algorithms in an engaging and memorable way. Nevertheless, when addressing complex algorithmic concepts, an approach with greater expressiveness and flexibility becomes necessary. Consequently, this study introduces stage performances as an innovative solution, using cinematic representation to successfully convey and communicate these intricate concepts and processes. To evaluate the effectiveness of this approach, a short film was designed, produced, and showcased to a second-semester CS2 university course audience studying programming techniques. Following an opening scene that establishes the context, the subsequent three acts vividly depict ad hoc, greedy, and dynamic programming solutions in response to the posed programming challenge. After the screening, a questionnaire was administered, built on four key constructs of the Technology Acceptance Model, as well as other potential facilitating factors. The study reveals 100% positive perceptions of educational benefits, with the vast majority of students expressing agreement regarding the utility, enjoyment, engagement, creativity, filmic quality, and cognitive benefits of short films. Additionally, a remarkable 96% reported the intent to utilize this approach. Our subsequent Structural Equation Modeling analysis discovered that students whose learning styles were in sync with this approach demonstrated a robust correlation between their perception of the method’s value, their enjoyment of the process, and their overall attitude towards this pedagogical method. This study confirms the potential of visual storytelling through short films as an effective tool for delivering programming education. The findings provide valuable insights for computer science educators seeking to engage learners and convey complex information in an attractive and effective way. LA - English DB - MTMT ER - TY - JOUR AU - Mihálydeák, Tamás AU - Kádek, Tamás AU - Nagy, Dávid AU - Chakraborty, Mihir K. TI - Intensions and extensions of granules: A two-component treatment JF - INTERNATIONAL JOURNAL OF APPROXIMATE REASONING J2 - INT J APPROX REASON VL - 169 PY - 2024 SP - 1 EP - 15 PG - 15 SN - 0888-613X DO - 10.1016/j.ijar.2024.109182 UR - https://m2.mtmt.hu/api/publication/34776900 ID - 34776900 LA - English DB - MTMT ER - TY - JOUR AU - Bagossy, Attila AU - Battyányi, Péter TI - An encoding of the λ-calculus in the String MultiSet Rewriting calculus JF - ACTA INFORMATICA J2 - ACTA INFORM PY - 2024 PG - 21 SN - 0001-5903 DO - 10.1007/s00236-024-00456-w UR - https://m2.mtmt.hu/api/publication/34755014 ID - 34755014 AB - In this paper, we present an encoding of the \lambda λ -calculus in a multiset rewriting system and provide a few applications of the construction. For this purpose, we choose the calculus named String MultiSet Rewriting, which was introduced in Barbuti et al. (Electron Notes Theor Comput Sci 194:19–34, 2008) by Barbuti et al. With the help of our encoding, we give alternative proofs for the standardization and the finiteness of developments theorems in the \lambda λ -calculus. LA - English DB - MTMT ER - TY - JOUR AU - Melikov, Agassi AU - Poladova, Laman AU - Sztrik, János TI - Queuing-Inventory System with Catastrophes in the Warehouse: Case of Rare Catastrophes JF - MATHEMATICS J2 - MATHEMATICS-BASEL VL - 12 PY - 2024 IS - 6 SP - 906 SN - 2227-7390 DO - 10.3390/math12060906 UR - https://m2.mtmt.hu/api/publication/34748505 ID - 34748505 AB - A model of a single-server queuing-inventory system (QIS) with a limited waiting buffer for consumer customers (c-customers) and catastrophes has been developed. When a catastrophe occurs, all items in the system’s warehouse are destroyed, but c-customers in the system are still waiting for replenishment. In addition to c-customers, negative customers (n-customers) are also taken into account, each of which displaces one c-customer (if any). The policy (s, S) is used to replenish stocks. If, when a customer enters, the system warehouse is empty, then, according to Bernoulli’s trials, this customer either leaves the system without goods or joins the buffer. The mathematical model of the investigated QIS is constructed in the form of a continuous-time Markov chain (CTMC). Both exact and approximate methods for calculating the steady-state probabilities of constructed CTMCs are proposed and closed-form expressions are obtained for calculating the performance measures. Numerical evaluations are presented, demonstrating the high accuracy of the developed approximate formulas, as well as the behavior of performance measures depending on the input parameters. In addition, an optimization problem is solved to obtain the optimal value of the reorder point to minimize the expected total cost. LA - English DB - MTMT ER - TY - JOUR AU - Auzinger, G. AU - Bakhshiansohi, H. AU - Dabrowski, A. AU - Delannoy, A.G. AU - Dierlamm, A. AU - Dragicevic, M. AU - Gholami, A. AU - Gomez, G. AU - Guthoff, M. AU - Haranko, M AU - Homna, A. AU - Jenihhin, M. AU - Kaplon, J. AU - Karacheban, O. AU - Korcsmáros, B. AU - Liu, W.H. AU - Lokhovitskiy, A. AU - Loo, R. AU - Mallows, S. AU - Michel, J. AU - Myronenko, V. AU - Pásztor, Gabriella AU - Pari, M. AU - Schwandt, J. AU - Sedghi, M. AU - Shevelev, A. AU - Shibin, K. AU - Steinbrueck, G. AU - Stickland, D. AU - Ujvári, Balázs AU - Wegrzyn, G.J. TI - The CMS Fast Beam Condition Monitor for HL-LHC JF - JOURNAL OF INSTRUMENTATION J2 - J INSTRUM VL - 19 PY - 2024 IS - 3 SN - 1748-0221 DO - 10.1088/1748-0221/19/03/C03048 UR - https://m2.mtmt.hu/api/publication/34741231 ID - 34741231 N1 - Elfogadva 2024. február 5. LA - English DB - MTMT ER - TY - JOUR AU - Csuhaj-Varjú, Erzsébet AU - Vaszil, György TI - Variants of distributed reaction systems JF - NATURAL COMPUTING J2 - NAT COMPUT VL - x PY - 2024 IS - x SP - 1 EP - 16 PG - 16 SN - 1567-7818 DO - 10.1007/s11047-024-09974-5 UR - https://m2.mtmt.hu/api/publication/34719307 ID - 34719307 AB - A distributed reaction system consists of a finite set of reaction systems that either interact with a common environment or interact with each other by communicating products or reactions. A reaction system is a well-known qualitative formal model of interactions between biochemical reactions. A reaction is a triplet of nonempty sets representing chemicals, called the set of reactants, the set of inhibitors, and the set of products. A reaction corresponds to a chemical reaction performed on a set of chemicals, and a reaction system is a finite nonempty set of reactions. In this paper, we examine two variants of distributed reaction systems. We introduce the notion of a distributed reaction system with communication by request (a qDRS for short), where sets of products are communicated between the component reaction systems by queries. First, we show that every qDRS can be represented by a reaction system. After that we compare distributed reaction systems with communication by request to extended distributed reaction systems (EDRSs), models that were introduced in a previous paper. We prove that extended distributed reaction systems, where a context automaton provides input for the component reaction systems, simulate distributed reaction systems with communication by request and distributed reaction systems with communication by request simulate special variants of extended distributed reaction systems. Furthermore, we assign languages to these two variants of distributed reaction systems. We prove that the class of agreement languages of extended distributed reaction systems is equal to the class of languages of nondeterministic multihead finite automata and the agreement language of every distributed reaction system with communication by request is an element of a certain subregular language class. LA - English DB - MTMT ER -