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Search for Vector-Like Leptons With Long-Lived Particle Decays in the CMS Muon System in Proton-Proton Collisions at √s=13 Tev
No full textCastilla-Valdez, Heriberto/0009-0005-9590-9958; Meuser, Danilo/0000-0002-2722-7526; Goldstein, Joel/0000-0003-1591-6014; Niedziela, Jeremi/0000-0002-9514-0799; Cetorelli, Flavia/0000-0002-3061-1553; Diotalevi, Tommaso/0000-0003-0780-8785; Ligabue, Franco/0000-0002-1549-7107; Gadallah, Mahmoud Moussa Abdelkhalek/0000-0002-8305-6661; Kramer, Tobias Robert Jakob/0000-0002-7004-0214; Robertshaw, Liam/0009-0006-5304-2492; Pauls, Alexander/0000-0002-8117-5376; Sharma, Ram Krishna/0000-0003-1181-1426; Garutti, Erika/0000-0003-0634-5539; Pesaresi, Mark/0000-0002-9759-1083; Mastrapasqua, Paola/0000-0002-2043-2367; Waltenberger, Wolfgang/0000-0002-6215-7228; Sekhar, Sanjana/0000-0002-8307-7518; Lorkowski, Florian/0000-0003-2677-3805; Brooke, James/0000-0003-2529-0684; Piccinelli, Anea/0000-0003-0386-0527; Dharmaratna, Welathantri/0000-0002-6366-837X; Zorbakir, Ibrahim Soner/0000-0002-5962-2221; Matorras-Cuevas, Pablo/0000-0001-7481-7273; Tiwari, Praveen Chana/0000-0002-3667-3843; Calligaris, Luigi/0000-0002-9951-9448; Navarrete Ramos, Efren/0000-0002-5180-4020; Pérez Prada, Maximilian/0000-0002-2831-463X; Forthomme, Laurent/0000-0002-3302-336X; Kim, Youngwan/0000-0002-4856-5989; Neri Huerta, Fernando Enrique/0000-0002-2298-2215; Alcaraz Maestre, Juan/0000-0003-0914-7474; Uslan, Ebru/0000-0002-2472-0526; Cumalat, John/0000-0002-6032-5857; Lintuluoto, Adelina/0000-0002-0726-1452; Bärtschi, Pascal/0000-0002-8842-6027; D'Anzi, Brunella/0000-0002-9361-3142; Novak, Anzej/0000-0002-0389-5896; Pigazzini, Simone/0000-0002-8046-4344; Riti, Federica/0000-0002-1466-9077; Sculac, Toni/0000-0002-9578-4105; Jabusch, Henrik Ronald/0000-0003-2444-1014; Van Onsem, Gerrit/0000-0002-1664-2337; Meng, Fanqiang/0000-0003-0443-5071; Long, Kenneth/0000-0003-0664-1653; Kalbhor, Pritam/0000-0002-5892-3743; Goldouzian, Reza/0000-0002-0295-249X; Missiroli, Marino/0000-0002-1780-1344; Lucchini, Marco Toliman/0000-0002-7497-7450; Mantilla, Cristina/0000-0002-0177-5903; Noll, Dennis Daniel Nick/0000-0002-0176-2360; Golf, Frank/0000-0003-3567-9351; Ruiz, Jose/0000-0002-3306-0363; Gomez-Ceballos, Guillelmo/0000-0003-1683-9460; Cavallari, Francesca/0000-0002-1061-3877; Kirpichnikov, Dmitry/0000-0002-7177-077X; Agicevic, Marko/0000-0003-1967-6783; Yagil, Avi/0000-0002-6108-4004; Leonardo, Nuno/0000-0002-9746-4594; Blumenfeld, Barry/0000-0003-1150-1735; Jabeen, Shabnam/0000-0002-0155-7383; Menezes De Oliveira, Thales/0009-0009-4729-8354; Lee, Jason/0000-0002-2153-1519; Sarkar, Tanmay/0000-0003-0582-4167; Duarte, Javier Mauricio/0000-0002-5076-7096; Konstantinou, Sotiroulla/0000-0003-0408-7636; Wittich, Peter/0000-0002-7401-2181; D'Amante, Valeria/0000-0002-7342-2592; Chernyavskaya, Nadezda/0000-0002-2264-2229; Moureaux, Louis/0000-0002-2310-9266; Röwert, Nicolas/0000-0002-4745-5470; Hinzmann, Aneas/0000-0002-2633-4696; Melo Da Costa, Eliza/0000-0002-5016-6434; Migliore, Ernesto/0000-0002-2271-5192; Chou, Pin-Chun/0000-0002-5842-8566; Rieger, Marcel/0000-0003-0797-2606; Cavallari, Francesca/0000-0002-1061-3877; Lu, Meng/0000-0002-6999-3931; Christoforou, Konstantinos/0000-0003-2205-1100; Sharma, Ashish/0000-0002-0688-923X; Kim, Suho/0000-0003-2381-5117; Torres Da Silva De Araujo, Felipe/0000-0002-4785-3057; Lee, Jason/0000-0002-2153-1519; Lawhorn, Jay/0000-0002-8597-9259; Mudholkar, Tanmay/0000-0002-9352-8140; Grab, Christophorus/0000-0002-6182-3380; Krintiras, Georgios Konstantinos/0000-0002-0380-7577; Salvatico, Riccardo/0000-0002-2751-0567; Seidel, Markus/0000-0003-3550-6151; Dubinin, Mikhail/0000-0002-7766-7175; Qin, Xuelong/0009-0007-5089-3694; Petrucciani, Giovanni/0000-0003-0889-4726; Dallavalle, Gaetano Marco/0000-0002-8614-0420; Horzela, Maximilian/0000-0002-3190-7962; Ruales, Anderson/0000-0003-0826-0803; Rinkevicius, Aurelijus/0000-0002-7510-255X; Petković, Ano/0009-0005-9565-6399; Torres Da Silva De Araujo, Felipe/0000-0002-4785-3057; Alcaraz Maestre, Juan/0000-0003-0914-7474; Ajmal, Sehar/0000-0002-2726-2858; Saha, Nihar Ranjan/0000-0002-7954-7898; Saha, Gourab/0000-0002-6125-1941; Fehérkuti, Anna/0000-0002-5043-2958; Bodek, Arie/0000-0003-0409-0341; Tok, Ufuk Guney/0000-0002-3039-021X; Tok, Ufuk Guney/0000-0002-3039-021X; Tok, Ufuk Guney/0000-0002-3039-021X; Lee, Jason/0000-0002-2153-1519; Gershtein, Yuri/0000-0002-4871-5449; De Souza Lemos, Dener/0000-0003-1982-8978; D'Enterria, David/0000-0002-5754-4303; Heikkilä, Jaana/0000-0002-0538-1469; Mondal, Spandan/0000-0003-0153-7590; Meridiani, Paolo/0000-0002-8480-2259; Vischia, Pietro/0000-0002-7088-8557; Tytgat, Michael/0000-0002-3990-2074; Lange, Clemens/0000-0002-3632-3157; Selvaggi, Michele/0000-0002-5144-9655; Kanuganti, Ankush Reddy/0000-0002-0789-1200; Mendizabal, Mikel/0000-0002-6506-5177; Bury, Florian/0000-0002-3077-2090; Sehrawat, Ashish/0000-0002-6816-7814; Yagil, Avi/0000-0002-6108-4004; Stäger, Fabian/0009-0003-0724-7727; Hinzmann, Aneas/0000-0002-2633-4696; Osite, Dace/0000-0002-2912-319X; Kole, Gouranga/0000-0002-3285-1497; Sahasransu, Abanti Ranadhir/0000-0003-1505-1743; Manzoni, Riccardo Anea/0000-0002-7584-5038; Tiras, Emrah/0000-0002-5628-7464; Naskar, Kousik/0000-0003-0638-4378; Figueiredo, Diego/0000-0003-2514-6930; Pizzati, Giorgio/0000-0003-1692-6206; Grummer, Aidan/0000-0003-2752-1183; Han, Yixiao/0000-0002-3510-6505; Fiorina, Davide/0000-0002-7104-257X; Assiouras, Panagiotis/0000-0002-5152-9006; Faccioli, Pietro/0000-0003-1849-6692; Novaes, Sergio/0000-0003-0471-8549; Aarrestad, Thea/0000-0002-7671-243X; Mousa, Jehad/0000-0002-2978-2718; Ptochos, Fotios/0000-0002-3432-3452; Watson, Ian James/0000-0003-2141-3413; Sharma, Ashish/0000-0002-0688-923X; Dominguez, Aaron/0000-0002-7420-5493; Dogra, Sunil Manohar/0000-0002-0812-0758; Ruabhatla, Sahithi/0000-0002-7366-4225; Zucchetta, Alberto/0000-0003-0380-1172; D'Amante, Valeria/0000-0002-7342-2592; Zorbakir, Ibrahim Soner/0000-0002-5962-2221; Luongo, Fabio/0000-0003-2743-4119; Arneodo, Michele/0000-0002-7790-7132; Frankenthal, Ane/0000-0002-2583-5982; Ecklund, Karl/0000-0002-6976-4637; Zucchetta, Alberto/0000-0003-0380-1172; Lu, Meng/0000-0002-6999-3931; Dozen, Candan/0000-0002-4301-634X; Chou, Pin-Chun/0000-0002-5842-8566; Mondal, Spandan/0000-0003-0153-7590; Dozen, Candan/0000-0002-4301-634X; Nanda, Shirsendu/0000-0003-0550-4083; Pásztor, Gabriella/0000-0003-0707-9762; Sharma, Vivek/0000-0003-1736-8795; Klanner, Robert/0000-0002-7004-9227; Novaes, Sergio/0000-0003-0471-8549; Alexakhin, Vadim/0000-0002-4886-1569; Fischer, Yannick/0000-0002-3184-1457; Gomez Espinosa, Tirso Alejano/0000-0002-9443-7769; Dozen, Candan/0000-0002-4301-634X; Erice Cid, Carlos Francisco/0000-0002-6469-3200; Simone, Federica Maria/0000-0002-1924-983X; Mantilla, Cristina/0000-0002-0177-5903; Lasaosa García, Clara/0000-0003-2726-7111; Watson, Ian James/0000-0003-2141-3413; Alves, Gilvan/0000-0002-8369-1446; Pásztor, Gabriella/0000-0003-0707-9762; Vannerom, David/0000-0002-2747-5095; Lu, Meng/0000-0002-6999-3931; Dozen, Candan/0000-0002-4301-634X; Duarte, Javier Mauricio/0000-0002-5076-7096; Fontanesi, Elisa/0000-0002-0662-5904; Klyukhin, Vyacheslav/0000-0002-8577-6531; Mehta, Ankita/0000-0002-0433-4484; Lee, Lawrence/0000-0002-5590-335X; Vai, Ilaria/0000-0003-0037-5032; Reimers, Arne Christoph/0000-0002-9438-2059; Grohsjean, Alexander/0000-0003-0748-8494; Chahal, Gurpreet Singh/0000-0003-0320-4407; Tapper, Alexander/0000-0003-4543-864X; Lange, Clemens/0000-0002-3632-3157; Kunnawalkam Elayavalli, Raghav/0000-0002-9202-1516; Knight, Charlotte Rose/0009-0008-1167-4816; Ehatäht, Karl/0000-0002-2387-4777; Dharmaratna, Welathantri/0000-0002-6366-837X; Ha, Seungkyu/0000-0003-2538-1551; Guzzi, Luca/0000-0002-3086-8260; Saha, Gourab/0000-0002-6125-1941; Simone, Federica Maria/0000-0002-1924-983X; Novaes, Sergio/0000-0003-0471-8549; Hatakeyama, Kenichi/0000-0002-6012-2451; Pfeffer, Emanuel/0009-0009-1748-974X; Poncet, Océane/0000-0002-5346-2968; Martinez Ruiz Del Arbol, Pablo/0000-0002-7737-5121; Novaes, Sergio/0000-0003-0471-8549; Leon Holgado, Jaime/0000-0002-4156-6460; Rieger, Marcel/0000-0003-0797-2606;A first search is presented for vector-like leptons (VLLs) exclusively decaying into a light long-lived pseudoscalar boson and a standard model tau lepton. The pseudoscalar boson is assumed to have a mass below the tau(+)tau(-) threshold, so that it decays exclusively into two photons. It is identified using the CMS muon system. The analysis is carried out using a data set of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment in 2016-2018, corresponding to an integrated luminosity of 138 fb(-1). Selected events contain at least one pseudoscalar boson decaying electromagnetically in the muon system and at least one hadronically decaying tau lepton. No significant excess of data events is observed compared to the background expectation. Upper limits are set at 95% confidence level on the vector-like lepton production cross section as a function of the VLL mass and the pseudoscalar boson mean proper decay length. The observed and expected exclusion ranges of the VLL mass extend up to 700 and 670 GeV, respectively, depending on the pseudoscalar boson lifetime.FWF; FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPERGS; FAPESP (Brazil); BNSF (Bulgaria); MoST; NSFC (China); CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); ERC PRG [MoER TK202]; Academy of Finland; MEC; CEA; CNRS/IN2P3 (France); SRNSF; BMBF; DFG; HGF (Germany); NKFIH (Hungary); DAE; DST; IPM; SFI (Ireland); INFN (Italy); NRF (Republic of Korea); MES (Latvia); MOE; UM (Malaysia); BUAP; CONACYT; UASLP-FAI (Mexico); PAEC (Pakistan); FCT (Portugal); MESTD (Serbia); PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); NSTDA; TUBITAK; DOE; NSF; Marie-Curie program; European Research Council; Horizon 2020 Grant [675440, 724704, 752730, 758316, 765710, 824093, 101115353, 101002207]; COST Action [CA16108]; Leventis Foundation; Alfred P. Sloan Foundation; Alexander von Humboldt Foundation; Science Committee [22rl-037]; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Beijing Municipal Science & Technology Commission [Z191100007219010]; Fundamental Research Funds for the Central Universities (China); Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; Shota Rustaveli National Science Foundation [FR-22-985]; Deutsche Forschungsgemeinschaft (DFG) [EXC 2121, 390833306, 400140256 - GRK2497]; Hellenic Foundation for Research and Innovation (HFRI) [2288]; Hungarian Academy of Sciences [K 131991, K 133046, K 138136, K 143460, K 143477, K 146913, K 146914, K 147048, 2020-2.2.1-ED-2021-00181, TKP2021-NKTA-64, 2021-4.1.2-NEMZ_KI-2024-00036]; Council of Science and Industrial Research, India - NextGenerationEU program (Italy); Latvian Council of Science; Ministry of Education and Science [2022/WK/14]; National Science Center [Opus 2021/41/B/ST2/01369, 2021/43/B/ST2/01552, CEECIND/01334/2018]; National Priorities Research Program by Qatar National Research Fund [MICIU/AEI/10.13039/501100011033]; ERDF/EU; Programa Severo Ochoa del Principado de Asturias (Spain); National Science, Research and Innovation Fund via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation [B39G670016]; Kavli Foundation; Nvidia Corporation; SuperMicro Corporation; Welch Foundation [C-1845]; Weston Havens Foundation (U.S.A.)We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid and other centers for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC, the CMS detector, and the supporting computing infrastructure provided by the following funding agencies: SC (Armenia), BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); ERC PRG, RVTT3 and MoER TK202 (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); SRNSF (Georgia); BMBF, DFG, and HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LMTLT (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); MESTD (Serbia); MICIU/AEI and PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (U.S.A.). Individuals have received support from the Marie-Curie program and the European Research Council and Horizon 2020 Grant, contract Nos. 675440, 724704, 752730, 758316, 765710, 824093, 101115353, 101002207, and COST Action CA16108 (European Union); the Leventis Foundation; the Alfred P. Sloan Foundation; the Alexander von Humboldt Foundation; the Science Committee, project no. 22rl-037 (Armenia); the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Beijing Municipal Science & Technology Commission, No. Z191100007219010 and Fundamental Research Funds for the Central Universities (China); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Shota Rustaveli National Science Foundation, grant FR-22-985 (Georgia); the Deutsche Forschungsgemeinschaft (DFG), among others, under Germany's Excellence Strategy - EXC 2121 "Quantum Universe" - 390833306, and under project number 400140256 - GRK2497; the Hellenic Foundation for Research and Innovation (HFRI), Project Number 2288 (Greece); the Hungarian Academy of Sciences, the New National Excellence Program - uNKP, the NKFIH research grants K 131991, K 133046, K 138136, K 143460, K 143477, K 146913, K 146914, K 147048, 2020-2.2.1-ED-2021-00181, TKP2021-NKTA-64, and 2021-4.1.2-NEMZ_KI-2024-00036 (Hungary); the Council of Science and Industrial Research, India; ICSC - National Research Center for High Performance Computing, Big Data and Quantum Computing and FAIR - Future Artificial Intelligence Research, funded by the NextGenerationEU program (Italy); the Latvian Council of Science; the Ministry of Education and Science, project no. 2022/WK/14, and the National Science Center, contracts Opus 2021/41/B/ST2/01369 and 2021/43/B/ST2/01552 (Poland); the FundacAo para a Ciencia e a Tecnologia, grant CEECIND/01334/2018 (Portugal); the National Priorities Research Program by Qatar National Research Fund; MICIU/AEI/10.13039/501100011033, ERDF/EU, "European Union NextGenerationEU/PRTR", and Programa Severo Ochoa del Principado de Asturias (Spain); the Chulalongkorn Academic into Its 2nd Century Project Advancement Project, and the National Science, Research and Innovation Fund via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation, grant B39G670016 (Thailand); the Kavli Foundation; the Nvidia Corporation; the SuperMicro Corporation; the Welch Foundation, contract C-1845; and the Weston Havens Foundation (U.S.A.).Science Citation Index Expande
Families and Students on the Trail of Cultural Heritage: Historical Game Journey
No full textField trips integrated with technology, supported by games and including family participation provide valuable experiences in cultural heritage education. The aim of this study is to determine the experiences of students and families regarding the historical game journey project, which integrates technology-supported, game-included, family-participatory field trip activity in cultural heritage education. Qualitative research method was used in the study. The study applied interview for 45 grade 3rd and 4th students and 54 parents. The data analyzed by descriptive analysis technique. As a result of the research, it was seen that the students who participated in the project found the activity fun, instructive and exciting. Parents on the other hand, thought that this activity provided quality time, provided a different perspective and facilitated learning by doing and experiencing. As a result, both children and parents found the activity positive in terms of realizing cultural heritage education. Therefore, when cultural heritage education is carried out with the support of technology together with families in the field, this application attracts students' attention and improves their awareness of cultural heritage. In addition, the gamified experience provided through the cards collected via the wands and kiosks was found to be enjoyable for students, enabling them to learn architectural concepts, explore cultural heritage elements on site, and develop an understanding of the importance of heritage preservation. While the students discussed the contribution of the historical game journey to them in terms of learning new information and contributing to sensitivity to cultural heritage, the parents explained the contribution of this process to them in terms of awareness of protecting cultural heritage, raising awareness and being instructive. Considering all these benefits of the historical game journey, it can be concluded that realizing such activities is important for cultural heritage education. The historical game journey enhanced students' awareness of cultural heritage and encouraged active family involvement. This demonstrates that technology-supported, game-based field trips can be powerful tools for both students and families in cultural heritage education.Historical Game Journey project [118K117]The study was generated from the Historical Game Journey project numbered [118K117] supported within the scope of TUBITAK [THE SCIENTIFIC AND TECHNOLOGICAL RESEARCH COUNCIL OF TURKEY] 1005.Social Science Citation Inde
Gestalt Algı İle En İyi Film Dalında Ödül Almış Yapımların Afiş Çözümlemesi
No full textGörsel kültür içerisinde yer alan medya araçlarından biri de afiştir. Günümüz afişlerinde fotoğraf ve baskı teknolojilerinin izleri vardır. Ayrıca filmi en iyi şekilde yansıttığı düşünülen göstergeler yer almaktadır. Tüketici ile iletişim kurarken afişteki amaç öncelikle dikkat çekmek, eğitmek, teşvik etmek, ikna etmek vb. niyetlerle oluşturulan eylemlerdir. Renk, şekil, tipografi ve düzen unsurları ile bir afişin genel olarak değerlendirilmesi mümkündür. Multidisipliner bir yöntem olan Gestalt prensipleri ile biçimsel ve içerik anlamlandırma süreci daha kolay ve doğru ilerleyebilmektedir. Bu sebeple çalışmada yöntem olarak Gestalt algı prensipleri ile çözümlemeden yararlanılmıştır ve 2019 senesinden itibaren her yıl en iyi film Oscar ödülünü almış yapımların afiş çözümlemesi yapılmıştır. Afişlerin tamamı şekil-zemin ilişkisine göre değerlendirilebilmiş; ancak tüm Gestalt prensipleri afişlerin hepsinde gözlemlenmemiştir. Bilimkurgu unsurlarının yer aldığı film afişlerinde efekt ve illüstrasyondan yararlanılmış, dram türünü yansıtan filmlerde, afişlerde tek fotoğraf karesi ile içerik aktarılmıştır. Afişler; Gestalt algı prensibi olan “bütün parçalar toplamından başka ve daha fazla bir şeydir.” savını da desteklemektedir
The Effects of Hedonic Hunger on Sustainable Nutrition Behaviors and Quality of Life in Adults Who Engage in Regular Physical Activity: A Comparative Study
No full textBu araştırma, düzenli fiziksel aktivitenin bireylerin yaşam kalitesi, hedonik açlık düzeyi ve sürdürülebilir beslenme davranışları üzerindeki etkilerini karşılaştırmalı olarak incelemeyi amaçlamaktadır. Çalışmaya 69'u düzenli spor yapan, 69'u spor yapmayan olmak üzere toplam 138 gönüllü birey katılmıştır. Katılımcılardan sosyo-demografik veriler, antropometrik ölçümleri ve genel sağlık bilgileri artı olarak genel ve beslenme alışkanlıkları kendim tarafından oluşturulan sorular ile toplanmıştır. Bunlar dışında SF-36 Yaşam Kalitesi Ölçeği, Besin Gücü Ölçeği ve Sürdürülebilir Beslenme Ölçeği de kullanılmıştır. Bulgular, düzenli spor yapan bireylerin yaşam kalitesi ölçeğinin alt başlıkları olan fiziksel fonksiyon ve genel sağlık bilgilerinin anlamlı şekilde daha yüksek olduğu sonucuna varılmıştır. Hedonik açlık düzeyinde ise anlamlı fark elde edilmemiştir. Ancak literatürde anlamlı sonuçların bulunması sebebiyle daha çok çalışmaya ihtiyaç vardır. Sürdürülebilir beslenmede de anlamlı sonuç elde edilmemiştir ancak gıda israfını azaltma puanlarının, mevsimsel ve yerel beslenme, besin satın alma alt başlıklarının spor yapmayan bireylerde daha yüksek olması, istatistiksel anlamlılık sınırında da olsa dikkat çekici bir bulgudur. Cinsiyet, yaş, medeni durum, çocuk sahibi olma ve gelir durumu gibi dış faktörler de bu sonuçları etkilemektedir. Yapılan korelasyon çalışmalarında da yaşam kalitesi ile hedonik açlık arasında ters yönde ilişki olduğu; aynı zamanda yaşam kalitesi ve sürdürülebilir beslenme arasında da aynı yönde ilişki olduğu görülmektedir.This study aims to comparatively examine the effects of regular physical activity on individuals' quality of life, hedonic hunger level and sustainable nutrition behaviors. A total of 138 volunteers, 69 of whom do regular sports and 69 of whom do not, participated in the study. Socio-demographic data, anthropometric measurements and general health information were collected from the participants, plus general and nutritional habits were collected with questions created by myself. In addition to these, the SF-36 Quality of Life Scale, Nutrient Power Scale and Sustainable Nutrition Scale were also used. The findings concluded that individuals who do regular sports have significantly higher physical function and general health information, which are subheadings of the quality of life scale. No significant difference was obtained in the hedonic hunger level. However, since there are significant results in the literature, more studies are needed. No significant results were obtained in sustainable nutrition either, but the fact that food waste reduction scores, seasonal and local nutrition, and food purchasing subheadings were higher in individuals who do not do sports is a remarkable finding, albeit at the limit of statistical significance. External factors such as gender, age, marital status, having children and income also affect these results. Correlation studies have shown that there is an inverse relationship between quality of life and hedonic hunger; and there is also a similar relationship between quality of life and sustainable nutrition
Outcomes of Tracheostomy in a Pediatric Intensive Care Unit: A Single-Center Experience
No full textObjectives: This study aims to evaluate the indications and complications of tracheostomy procedures performed in the pediatric intensive care unit (PICU) of a private healthcare institution. Patients and methods: Twenty-one pediatric patients (13 males, 8 females; mean age: 6.7±4.4 years; range, 3 months to 18 years) who underwent surgical tracheostomy between October 1, 2018, and June 1, 2023, were retrospectively analyzed. Results: The mean duration of tracheostomy was 38±16.5 days (range, 9 to 75 days). The most common indication for tracheostomy was prolonged mechanical ventilation due to neuromuscular conditions (cerebral palsy-associated pneumonia) in 17 (80.9%) patients, followed by upper airway obstruction in three (14%) patients. One (4.8%) patient underwent tracheostomy due to coronavirus disease 2019 (COVID-19) pneumonia. Eighteen (85.7%) patients were discharged, while three (14.3%) patients died during intensive care follow-up. Conclusion: Tracheostomy is a surgical procedure that can be safely performed in PICUs, particularly in cases requiring prolonged mechanical ventilation. The timing of tracheostomy should be individually assessed based on the clinical condition of the patient by the pediatric intensive care specialist. © 2025 Elsevier B.V., All rights reserved
İflasta İşletmenin Devamı veya Kapatılmasına İlişkin Karara Esas Kriterler
No full textİflas kararı alındığında, müflisin işletmesi genellikle kapatılır ve malları satılarak tasfiye edilir. Bu uygulama, iflasın esas amacının, işletmenin mal varlığının nakde çevrilerek borçların ödenmesine yönelik yerleşik anlayışa dayanmaktadır. Ancak, alacaklıların satıştan elde edeceği tasfiye payına kıyasla daha fazla tatmin edilme ihtimali göz önünde bulundurulduğunda, işletmenin kapatılması yerine faaliyetlerinin devam ettirilmesi ve borçların ödeme yoluna gidilmesi olasılığı da ortaya çıkmaktadır. Fakat, iflasın yönetimiyle ilgili olarak, işletmenin hangi yöntemle sürdürüleceği ya da kapatılacağına dair İcra ve İflas Kanunu (İİK) veya diğer mevzuatlarda açık bir düzenleme bulunmamaktadır. Bu belirsizlik, işletmenin faaliyetlerine devam edilmesine karar verildiği takdirde iflas dairesi veya iflas idaresinin karşılaşabileceği olası sorumluluklardan kaçınma eğiliminde olmasına neden olmakta ve dolayısıyla söz konusu seçeneğin pratikte genellikle tercih edilmemesine yol açmaktadır. Oysa, müflise ait bir işletmenin faaliyetlerinin devamı mümkünse, bu seçeneğin göz ardı edilip yalnızca mal satışına dayalı tasfiye yoluna gidilmesi doğru bir yaklaşım olarak değerlendirilemez. Hem ülke ekonomisinin sürdürülebilirliği hem de alacaklıların daha fazla tatmin edilme olasılıkları açısından bu yaklaşım doğru değildir. Zira karşılaştırmalı hukuk sistemlerinde iflasın yeniden yapılandırma aracı olarak ele alınması gerektiği de vurgulanmaktadır. İşletmenin devamına veya kapatılmasına yönelik kararların verilmesinde doğru kriterlerin belirlenmesi, işletmenin yaşatılması durumunda tasfiyeden beklenen faydadan daha yüksek bir verim elde edilebileceğini göstermektedir. Bu bağlamda çalışma, Türkiye’deki iflas sürecinde işletmenin devam etme olasılığının daha fazla dikkate alınmasını teşvik etmek ve işletmenin devamı veya kapatılması doğrultusunda alınacak kararların doğru temellere dayandırılmasına katkı sağlamayı amaçlamaktadır
Self Energy in Kerr-Sen Space-Time Incorporated to Overspinning and Overcharging Problems
No full textPrevious attempts to overspin or overcharge Kerr-Sen black holes have been incomplete, as they neglect back-reaction effects. In this study, we incorporate the self-energy of perturbations, resulting from the induced increase in the angular velocity and the electrostatic potential of the event horizon, as described in a seminal work by Will. Our analysis demonstrates that Kerr-Sen black holes cannot be overspun or overcharged by perturbations that satisfy the null energy condition, within a comprehensive second-order framework that includes the self-energy of the perturbations.Science Citation Index Expande
Bolşevik Basını ve Hegemonya: Nisan Tezleri’nin toplumsal Mobilizasyon Üzerindeki Etkisi
No full textBu çalışma, Vladimir Lenin’in 1917 yılında kaleme aldığı Nisan Tezleri’nin, Bolşevik basın aracılığıyla nasıl etkili bir toplumsal mobilizasyon sağladığını analiz etmektedir. Nisan Tezleri, Rus Devrimi’nin ideolojik ve politik yönelimini belirleyen temel bir belge olarak, sosyalist devrim hedefini net biçimde ortaya koymuş ve geniş işçi sınıfı ile köylü sınıfı gibi toplumsal kesimlere hitap ederek mevcut kapitalist düzeni sert bir şekilde eleştirmiştir. Çalışmada, Antonio Gramsci’nin hegemonya teorisi temelinde Lenin’in söylemlerinin ideolojiyle ilişkisi ve Bolşevik basının bu söylemi yayma işlevi teorik çerçeve olarak sunulmuş; söylem analizi yöntemi olarak Teun van Dijk’in eleştirel söylem analizi modeli tercih edilerek Lenin’in retorik stratejileri bilişsel, söylemsel ve toplumsal boyutlarıyla sistematik biçimde incelenmiştir. Bu yöntem Lenin’in ideolojik hedeflerini ve söylem gücünü derinlemesine anlamaya olanak sağlamıştır. Nisan Tezleri, Bolşevik basın tarafından geniş kitlelere ulaştırılarak devrimci bilincin yaygınlaşmasında ve halkın devrim sürecine aktif katılımında kritik rol oynamış; basın, sadece mesajların taşıyıcısı olmakla kalmayıp, ideolojik içeriği geniş toplumsal tabanlara ulaştırarak devrimin iletişim altyapısını ve ideolojik çerçevesini güçlendirmiştir. Ayrıca, kitlelerin siyasi farkındalığını artırmış ve devrim sürecindeki aktörler arasındaki güç ilişkilerinin şekillenmesinde belirleyici olmuştur. Bulgular, Lenin’in söylemlerinin işçi ve köylü kitleleri adına mevcut sistem algısını kökten değiştirme amacı taşıdığını ve söylemin hem stratejik hem de ideolojik bir araç olarak işlev gördüğünü göstermektedir. Çalışma, Lenin’in Nisan Tezleri’ni toplumsal mobilizasyon ve hegemonya inşası bağlamında ele alarak, devrimci hareketlerin dil ve söylem aracılığıyla nasıl etkili bir liderlik ve hegemonya mekanizması kurduğunu tarihsel ve siyasal bağlamda ortaya koymakta; böylece Lenin’in söylemlerinin stratejik amaçları ve toplumsal dinamiklerle kurduğu ilişki üzerinden dilin dönüştürücü gücünü ve ideolojik hegemonya yaratmadaki rolünü göstermektedir. Bu bağlamda, Bolşevik basın ve Lenin’in retoriği, sosyalist devrim sürecinde söylem ile ideolojinin siyasette iç içe geçtiğinin somut örnekleri olarak değerlendirilmektedi
Proton Reconstruction with the TOTEM Roman Pot Detectors for High-* LHC Data
No full textZhang, Yousen/0000-0002-6812-761X; Safdari, Murtaza/0000-0001-8323-7318; Ferrara, Nicola/0009-0002-1824-4145; Heredia De La Cruz, Ivan/0000-0002-8133-6467; Rebello Teles, Patricia/0000-0001-9029-8506; Lai, Yihui/0000-0002-7795-8693; Schwandt, Joern/0000-0002-0052-597X; Portales, Louis/0000-0002-9860-9185; Bruschini, Davide/0000-0001-7248-2967; Bhowmik, Sandeep/0000-0003-1260-973X; Golf, Frank/0000-0003-3567-9351; Barroso Ferreira, Mapse/0000-0003-3904-0571; Klyukhin, Vyacheslav/0000-0002-8577-6531; Gerosa, Raffaele/0000-0001-8359-3734; Bortignon, Pierluigi/0000-0002-5360-1454; Trevisani, Nicolo/0000-0002-5223-9342; Murillo Quijada, Javier Alberto/0000-0003-4933-2092; Leonidou, Christos/0009-0008-6993-2005; Usai, Emanuele/0000-0001-9323-2107; Jin, Weijie/0009-0009-8976-7702; Sculac, Ana/0000-0001-7938-7559; Benaglia, Andrea Davide/0000-0003-1124-8450; Vami, Tamas Almos/0000-0002-0959-9211; Kontaxakis, Pantelis/0000-0002-4860-5979; Ventura, Sandro/0000-0002-8938-2193; Lasaosa Garcia, Clara/0000-0003-2726-7111; Kyberd, Paul/0000-0002-7353-7090; Pasztor, Gabriella/0000-0003-0707-9762; Krintiras, Georgios Konstantinos/0000-0002-0380-7577; Kunnawalkam Elayavalli, Raghav/0000-0002-9202-1516; Lu, Meng/0000-0002-6999-3931; Chou, Pin-Chun/0000-0002-5842-8566; Holmes, Tova/0000-0002-3959-5174; Melo Da Costa, Eliza/0000-0002-5016-6434; Wilson, Graham/0000-0003-0917-4763; Ligabue, Franco/0000-0002-1549-7107; Hall, Geoffrey/0000-0002-6299-8385; Duarte, Javier Mauricio/0000-0002-5076-7096; Forthomme, Laurent/0000-0002-3302-336X; Wittich, Peter/0000-0002-7401-2181; Tytgat, Michael/0000-0002-3990-2074; Lami, Stefano/0000-0001-9492-0147; Ferencek, Dinko/0000-0001-9116-1202; Mcginnis, Michael/0000-0002-9833-6316; Tapper, Alexander/0000-0003-4543-864X; Karneyeu, Anton/0000-0001-9983-1004; Mitselmakher, Guenakh/0000-0001-5745-3658; Moureaux, Louis/0000-0002-2310-9266; Gutsche, Oliver/0000-0002-8015-9622; Singh, Jasbir/0000-0001-9029-2462; Sharma, Ashish/0000-0002-0688-923X; Snoeys, Walter/0000-0003-3541-9066; Heath, Helen/0000-0001-6576-9740; Ahmad, Ashfaq/0000-0002-4770-1897; Diaz, Daniel/0000-0001-6834-1176; Tiras, Emrah/0000-0002-5628-7464; Cussans, David/0000-0001-8192-0826; Perez Adan, Danyer/0000-0003-3416-0726; Jabeen, Shabnam/0000-0002-0155-7383; Lipton, Ronald/0000-0002-6665-7289; Sahasransu, Abanti Ranadhir/0000-0003-1505-1743; Al Kadhim, Ali/0000-0003-3490-8407; Santpur, Sai Neha/0000-0001-6467-9970; Azzi, Patrizia/0000-0002-3129-828X; Ecklund, Karl/0000-0002-6976-4637; Pesaresi, Mark/0000-0002-9759-1083; Ruiz, Jose/0000-0002-3306-0363; Papageorgakis, Christos/0000-0003-4548-0346; Yagil, Avi/0000-0002-6108-4004; Alverson, George/0000-0001-6651-1178; Mitra, Soureek/0000-0002-3060-2278; Fouz Iglesias, Maria Cruz/0000-0003-2950-976X; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Moon, Chang-Seong/0000-0001-8229-7829; Smith, Nicholas/0000-0002-0324-3054; Diotalevi, Tommaso/0000-0003-0780-8785; Grunewald, Martin/0000-0002-5754-0388; Wilson, Jonathan/0000-0002-5672-7394; De Moor, Alexandre/0000-0001-5964-1935; Mendizabal, Mikel/0000-0002-6506-5177; Zhang, Licheng/0000-0001-7947-9007; Dozen, Candan/0000-0002-4301-634X; Cardini, Andrea/0000-0003-1803-0999; Longo, Luigi/0000-0002-2357-7043; /0000-0002-6047-4211; Matorras, Francisco/0000-0003-4295-5668; Giacomelli, Paolo/0000-0002-6368-7220; You, Zhengyun/0000-0001-8324-3291; D'Anzi, Brunella/0000-0002-9361-3142; Csanad, Mate/0000-0002-3154-6925; Felcini, Marta/0000-0002-2051-9331; Selvaggi, Michele/0000-0002-5144-9655; Delgado Peris, Antonio/0000-0002-8511-7958; Vannerom, David/0000-0002-2747-5095; Calderon Tazon, Alicia/0000-0002-7205-2040; Evdokimov, Olga/0000-0002-1250-8931; D'Enterria, David/0000-0002-5754-4303; Paulini, Manfred/0000-0002-6714-5787; Whalen, Kathleen/0000-0002-9383-8763; Geurts, Frank/0000-0003-2856-9090; Sandro, Fonseca De Souza/0000-0001-7830-0837; De La Cruz Burelo, Eduard/0000-0002-7469-6974; Garcia, Francisco/0000-0002-4023-7964; Ivanov, Andrew/0000-0002-9270-5643; Chatterjee, Suman/0000-0003-2660-0349; Reichert, Joseph/0000-0003-2110-8021; Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Vischia, Pietro/0000-0002-7088-8557; Giammanco, Andrea/0000-0001-9640-8294; Colaleo, Anna/0000-0002-0711-6319; Gomez Espinosa, Tirso Alejandro/0000-0002-9443-7769; Tumasyan, Armen/0009-0000-0684-6742; Yazgan, Efe/0000-0001-5732-7950; Ngadiuba, Jennifer/0000-0002-0055-2935; Mrenna, Stephen/0000-0001-8731-160X; Pradhan, Raghunath/0000-0001-7000-6510; Hahn, Kristian/0000-0001-7892-1676; Legger, Federica/0000-0003-1400-0709; Grandi, Claudio/0000-0001-5998-3070; Navarro-Tobar, Alvaro/0000-0003-3606-1780;The TOTEM Roman pot detectors are used to reconstruct the transverse momentum of scattered protons and to estimate the transverse location of the primary interaction. This paper presents new methods of track reconstruction, measurements of strip-level detection efficiencies, cross-checks of the LHC beam optics, and detector alignment techniques, along with their application in the selection of signal collision events. The track reconstruction is performed by exploiting hit cluster information through a novel method using a common polygonal area in the intercept-slope plane. The technique is applied in the relative alignment of detector layers with mu m precision. A tag-and-probe method is used to extract strip-level detection efficiencies. The alignment of the Roman pot system is performed through time-dependent adjustments, resulting in a position accuracy of 3 mu m in the horizontal and 60 mu m in the vertical directions. The goal is to provide an optimal reconstruction tool for central exclusive physics analyses based on the high-beta* data-taking period at root s = 13 TeV in 2018.FWF; FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPERGS; FAPESP (Brazil); BNSF (Bulgaria); MoST; NSFC (China); CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); ERC PRG [MoER TK202]; Academy of Finland; Magnus Ehrnrooth Foundation; MEC; Waldemar von Frenckell Foundation; CEA; CNRS/IN2P3 (France); SRNSF; BMBF; HGF (Germany); NKFIH (Hungary); DAE; DST; IPM; SFI (Ireland); INFN (Italy); NRF (Republic of Korea); MES (Latvia); MOE; UM (Malaysia); BUAP; CONACYT; UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); FCT (Portugal); MESTD (Serbia); PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); NSTDA; TUBITAK; NASU; DOE; NSF; Marie-Curie programme; European Research Council; Horizon 2020 Grant [675440, 724704, 752730, 758316, 765710, 824093, 101115353, 101002207]; COST Action [CA16108]; Leventis Foundation; Alfred P. Sloan Foundation; Alexander von Humboldt Foundation; Science Committee [22rl-037]; Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); FWO (Belgium) under the "Excellence of Science - EOS [30820817]; Be.ing Municipal Science & Technology Commission [Z191100007219010]; Fundamental Research Funds for the Central Universities (China); Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; Shota Rustaveli National Science Foundation [FR-22-985]; Deutsche Forschungsgemeinschaft (DFG) [EXC 2121, 390833306, 400140256 -GRK2497]; Hellenic Foundation for Research and Innovation (HFRI) [2288]; Hungarian Academy of Sciences [K 131991, K 133046, K 138136, K 143460, K 143477, K 146913, K 146914, K 147048, 2020-2.2.1-ED-2021-00181, TKP2021-NKTA-64, 2021-4.1.2-NEMZ_KI-202400036]; Council of Science and Industrial Research, India - NextGenerationEU program (Italy); Latvian Council of Science; Ministry of Education and Science [2022/WK/14]; National Science Centre [Opus 2021/41/B/ST2/01369, 2021/43/B/ST2/01552]; Fundacao para a Ciencia e a Tecnologia [CEECIND/01334/2018]; National Priorities Research Program by Qatar National Research Fund; ERDF "a way of making Europe [MDM-2017-0765]; Programa Severo Ochoa del Principado de Asturias (Spain); National Science, Research and Innovation Fund via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation [B39G670016]; Kavli Foundation; Nvidia Corporation; SuperMicro Corporation; Welch Foundation [C-1845]; Weston Havens Foundation (U.S.A.)We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS and TOTEM institutes for their contributions to the success of the common CMS-TOTEM effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid and other centres for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC, the CMS and TOTEM detectors, and the supporting computing infrastructure provided by the following funding agencies: SC (Armenia), BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); ERC PRG, RVTT3 and MoER TK202 (Estonia); Academy of Finland, Magnus Ehrnrooth Foundation, MEC, HIP, and Waldemar von Frenckell Foundation (Finland); CEA and CNRS/IN2P3 (France); SRNSF (Georgia); BMBF, DFG, and HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LMTLT (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); MESTD (Serbia); MCIN/AEI and PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (U.S.A.). Individuals have received support from the Marie-Curie programme and the European Research Council and Horizon 2020 Grant, contract Nos. 675440, 724704, 752730, 758316, 765710, 824093, 101115353, 101002207, and COST Action CA16108 (European Union); the Leventis Foundation; the Alfred P. Sloan Foundation; the Alexander von Humboldt Foundation; the Science Committee, project no. 22rl-037 (Armenia); the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the F.R.S.-FNRS and FWO (Belgium) under the "Excellence of Science - EOS" - be.h project n. 30820817; the Be.ing Municipal Science & Technology Commission, No. Z191100007219010 and Fundamental Research Funds for the Central Universities (China); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Shota Rustaveli National Science Foundation, grant FR-22-985 (Georgia); the Deutsche Forschungsgemeinschaft (DFG), among others, under Germany's Excellence Strategy -EXC 2121 "Quantum Universe" - 390833306, and under project number 400140256 -GRK2497; the Hellenic Foundation for Research and Innovation (HFRI), Project Number 2288 (Greece); the Hungarian Academy of Sciences, the New National Excellence Program - UNKP, the NKFIH research grants K 131991, K 133046, K 138136, K 143460, K 143477, K 146913, K 146914, K 147048, 2020-2.2.1-ED-2021-00181, and TKP2021-NKTA-64, and 2021-4.1.2-NEMZ_KI-202400036 (Hungary); the Council of Science and Industrial Research, India; ICSC -National Research Centre for High Performance Computing, Big Data and Quantum Computing and FAIR - Future Artificial Intelligence Research, funded by the NextGenerationEU program (Italy); the Latvian Council of Science; the Ministry of Education and Science, project no. 2022/WK/14, and the National Science Centre, contracts Opus 2021/41/B/ST2/01369 and 2021/43/B/ST2/01552 (Poland); the Fundacao para a Ciencia e a Tecnologia, grant CEECIND/01334/2018 (Portugal); the National Priorities Research Program by Qatar National Research Fund; MCIN/AEI/10.13039/501100011033, ERDF "a way of making Europe", and the Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia Maria de Maeztu, grant MDM-2017-0765 and Programa Severo Ochoa del Principado de Asturias (Spain); the Chulalongkorn Academic into Its 2nd Century Project Advancement Project, and the National Science, Research and Innovation Fund via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation, grant B39G670016 (Thailand); the Kavli Foundation; the Nvidia Corporation; the SuperMicro Corporation; the Welch Foundation, contract C-1845; and the Weston Havens Foundation (U.S.A.).Science Citation Index Expande
Comparison of Shear Bond Strength of Different Indirect Composites to New Generation Polyetheretherketone Materials
No full textBackground. The bond stability between polyetheretherketone (PEEK) materials and composites is a novel concern, and evidence regarding bond strength is limited. To date, no study has comprehensively evaluated the effect of different surface treatments, adhesive agents and composite materials on the shear bond strength (SBS) of various PEEK materials. Objectives. The aim of the study was to compare the SBS between 2 PEEK materials and different indirect composites applied after the application of various surface pre-treatment methods and adhesives. Material and methods. A total of 328 PEEK specimens (JUVORA (TM) (unfilled PEEK material, n = 164); BioHPP (compound containing 20% nanoceramic-filled PEEK, n = 164)) were divided into 4 groups according to the applied surface treatment: no treatment; air abrasion; acid etching; and acid etching + air abrasion. Subsequently, all specimens were conditioned with visio.link (VL) or Single Bond Universal (SBU). The specimens were veneered with crea.lign composite (CR) or SR Nexco composite (SR), and the bond strength values were measured. The co-variance analysis of variance (ANOVA) was performed to analyze the data (alpha = 0.003). Results. The SBS values for BioHPP specimens were significantly higher than the values for JUVORA (TM) specimens in the no treatment group (p < 0.001). The highest SBS values were detected between BioHPP and SR (22.54 +/- 1.22 MPa), and between JUVORA(TM )and SR (21.45 +/- 1.43 MPa) after acid etching and conditioning with VL (p < 0.001). The surface treatments, composites and adhesives affected the SBS between the composites and PEEK materials. Conclusions. Following air abrasion or acid etching of surfaces, conditioning with VL and aesthetic veneering with SR may bea more reliable clinical application than othersurface treatments and adhesive-composite combinations for PEEK.Kocaeli University Scientific Research Projects Fund [BAP 2018-029]The research was supported in part by the Kocaeli University Scientific Research Projects Fund (grant No. BAP 2018-029) .Emerging Sources Citation Inde