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How Did the Covid-19 Pandemic Affect Individuals With Schizophrenia From Turkey?
No full textBackground: Serious mental illness, including schizophrenia, have been shown to be associated with psychosocial vulnerabilities in the face of adverse events. While individuals with schizophrenia might undergo many psychosocial difficulties during the COVID-19 pandemic, they might also not be affected, or report increased subjective well-being. This suggests that it is important to understand diverse impacts and further understand the unique experiences. Methods: To capture how the pandemic affected them and how they handled the challenges if there were any in the initial and more recent phases of the pandemic, 18 individuals with schizophrenia living in Turkey were interviewed. Results: Thematic analysis of interviews resulted in four superordinate themes for both time points. Three themes related to the impact of the pandemic (i.e. burdens of COVID-19, positive impacts of COVID-19, no impact of COVID-19) indicated that they shared a number of challenges with the general population. Themes about the positive impacts and no impact also replicated the previous findings in this clinical population. One last theme named as facilitators of coping implied that the participants tried to deal with the burdens by using available resources, adapt to the changes in their daily living, and benefit from social interaction and support. Conclusions: To conclude, people with schizophrenia seem to be coping with challenges posed by the pandemic with diverse strategies and they seem to even experience psychological growth alongside with negative impacts. The individualized needs and potential for growth have pivotal implications for the management of the illness during the pandemic
Exploring Design Options for Wing Leading Edge Against Bird Strike
No full textThis study investigates the effects of bird strike on the wing leading edge of a trainer aircraft in accordance with the European Aviation Safety Agency’s CS-23 standards (“Normal, Utility, Aerobatic and Commuter Aeroplanes,” Certification Specifications, Part 23, Occupant Physical Environment), and it compares various options for the design of energy-absorbing support structures. In this study, the bird model with hemispherical-ended cylindrical geometry is simulated using the smoothed particle hydrodynamics finite element approach. After validating the impact of the bird model on a rigid plate, a bird strike on the wing leading edge is modeled; and the results are compared with the existing experimental and simulation data available in the literature. Finally, different design options for the support structure configurations of the wing leading edge (including traditional rib design, honeycomb sandwich, triangular reinforcement, and negative Poisson ratio structures) are evaluated, and the results are compared. It is found that a honeycomb sandwich panel support structure provides the best collision and weight performance. © 2023, AIAA International. All rights reserved.This study was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) project no. 20AG027 under program no. 20AG001, the TUBITAK Bilim İnsanı Destek Program-ları Başkanlığı (BIDEB) 2209-B Undergraduate Research Project Support Program for Industry 2020/1, and the Turkish Aerospace Industry under the Lift-Up Program 2020/2021.2020/2021; Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, TÜBİTAK: 20AG001, 20AG02
Searches for Lepton-Flavour Decays of the Higgs Boson Into Eτ and Μτ in √s=13 Tev Pp Collisions With the Atlas Detector
No full textThis paper presents direct searches for lepton flavour violation in Higgs boson decays, H -> e tau and H -> mu tau, performed using data collected with the ATLAS detector at the LHC. The searches are based on a data sample of proton-proton collisions at a centre-of-mass energy root s = 13 TeV, corresponding to an integrated luminosity of 138 fb(-1). Leptonic (tau -> l nu(l)nu(tau)) and hadronic (tau -> hadrons nu(tau)) decays of the tau-lepton are considered. Two background estimation techniques are employed: the MC-template method, based on data-corrected simulation samples, and the Symmetry method, based on exploiting the symmetry between electrons and muons in the Standard Model backgrounds. No significant excess of events is observed and the results are interpreted as upper limits on lepton-flavour-violating branching ratios of the Higgs boson. The observed (expected) upper limits set on the branching ratios at 95% confidence level, B(H -> e tau) 0.20% (0.12%) and B(H -> mu tau ) 0.18% (0.09%), are obtained with the MC-template method from a simultaneous measurement of potential H -> e tau and H -> mu tau signals. The best-fit branching ratio difference, B(H -> mu tau) -> B(H -> e tau), measured with the Symmetry method in the channel where the tau-lepton decays to leptons, is (0.25 0.10)%, compatible with a value of zero within 2.5 sigma.ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW; FWF, Austria; ANAS; CNPq; FAPESP, Brazil; NSERC; CFI, Canada; NSFC, China; MEYS CR, Czech Republic; DNRF; DNSRC, Denmark; IN2P3-CNRS; CEA-DRF/IRFU, France; BMBF; MPG, Germany; RGC and Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT; JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MEiN, Poland; FCT, Portugal; MNE/IFA, Romania; MESTD, Serbia; MSSR, Slovakia; ARRS; MIZS, Slovenia; MICINN, Spain; Wallenberg Foundation, Sweden; SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; DOE; NSF, United States of America; BCKDF; CANARIE; CRC, Canada [PRIMUS 21/SCI/017, UNCE SCI/013]; Czech Republic; ERC; ERDF; Marie Skodowska-Curie Actions, European Union; Investissements d'Avenir Labex, Investissements d'Avenir Idex; ANR, France; DFG; AvH Foundation, Germany - EU-ESF; Greek NSRF, Greece; BSF-NSF; NCN; La Caixa Banking Foundation; CERCA Programme Generalitat de Catalunya; PROMETEO; Generalitat Valenciana, Spain; Goran Gustafssons Stiftelse, Sweden; Royal Society; Leverhulme Trust, United KingdomWe acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; Minciencias, Colombia; MEYS CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; GSRI, Greece; RGC and Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MEiN, Poland; FCT, Portugal; MNE/IFA, Romania; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DSI/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TENMAK, Turkiye; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, CANARIE, Compute Canada and CRC, Canada; PRIMUS 21/SCI/017 and UNCE SCI/013, Czech Republic; COST, ERC, ERDF, Horizon 2020 and Marie Skodowska-Curie Actions, European Union; Investissements d'Avenir Labex, Investissements d'Avenir Idex and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and MINERVA, Israel; Norwegian Financial Mechanism 2014-2021, Norway; NCN and NAWA, Poland; La Caixa Banking Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO and GenT Programmes Generalitat Valenciana, Spain; Goran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom
Bağlam Düzeyi Uyumluluk Oranı Etkisinin Altında Yatan Bilişsel Süreçlerin İncelenmesi
No full textBağlama bağlı bilişsel kontrol çalışmalarında, iki adet uzamsal bağlam oluşturulur ve bu bağlamlarda Stroop uyarıcıları farklı uyumluluk oranlarında sunulur. Örneğin ekranın üst yarısında sunulan Stroop uyarıcıları çoğunlukla uyumlu (%75 uyumlu, %25 uyumsuz) olarak sunulurken, ekranın alt yarısında sunulan Stroop uyarıcıları çoğunlukla uyumsuz (%75 uyumsuz, %25 uyumlu) olarak sunulur. Çoğunlukla uyumlu bağlamdaki Stroop etkisi, çoğunlukla uyumsuz bağlamdaki etkiye kıyasla daha büyüktür. Aradaki fark Bağlam Düzeyi Uyumluluk Oranı (BDUO) etkisi olarak adlandırılır. Kimi araştırmacılar BDUO etkisinin uyarıcı düzeyinde gerçekleşen kontrol mekanizmaları (uyarıcı düzeyi uyumluluk oranı [UDUO] etkisi) ile ilgili olduğunu iddia ederken kimileri BDUO etkisinin bağımsız bir etki olduğunu ileri sürmektedir. Yapılan çalışmalar Stroop uyarıcılarındaki kelime ve tepki arasındaki izlerliğin ve kelime ve renk arasındaki sürenin UDUO etkisini değiştirdiğini göstermiştir. Bu çalışmada ise BDUO etkisinin UDUO etkisinden farklı olup olmadığını araştırmak amacıyla kelime ve renk arasındaki süre ve izlerlik değişimlemeleri kullanılarak üç adet Stroop deneyi gerçekleştirilmiştir. Elde edilen sonuçlara göre UDUO etkisinin aksine kelime ve renk arasındaki süre ve izlerlik değişimlemesiyle bağlam uyarıcılarında anlamlı bir BDUO etkisi gözlemlenememiştir. Bu da BDUO etkisinin UDUO etkisinden farklı olduğu görüşünü desteklemektedir. Ayrıca UDUO etkisinden farklı olarak, BDUO etkisinin kullanılan görevin özelliklerinden etkilendiğine ve uzamsal dikkat gerektiren belli görevler dışında gözlemlenmesinin zor olduğu sonucuna varılmıştır
Complex Rigid Foot Deformity Correction With Hexapod External Fixator System
No full textArticle; Early AccessPurposeComplex rigid foot deformities include three-plane deformities and usually presents with poor soft tissue coverage. In the last decades, gradual correction with computer-assisted fixator became an appropriate option for the treatment rigid foot deformities. This study aims to report our experience about treatment of complex foot deformities using Smart Correction fixator system ; REG;.MethodsWe retrospectively analyzed 13 complex rigid foot deformities of ten consecutive patients treated with Smart Correction fixator system ; REG; from 2016 to 2020. Primary outcomes were classified as good, fair, and poor according to previously determined criteria. The outcomes were also assessed with The Manchester-Oxford Foot Questionnaire (MOXFQ). Non-parametric analysis (Wilcoxon test) for continuous variables and the Fisher's exact test for categorical variables were used.ResultsPlantigrade foot was achieved in all patients after correction program. Supramalleolar osteotomy was applied in nine feet, midfoot osteotomy was applied in two feet, hindfoot osteotomy was required in one foot, and only soft tissue distraction performed in two feet. Two patients had recurrent deformity managed by further acute corrections. The mean MOXFQ scores improved from 72.7 preoperatively to 24.8 at last follow-up.ConclusionsPresent study shows that SCF the reliable option for the treatment of complex foot deformities, which also facilitates three-plane correction and concomitant lengthening with gradual soft tissue balance
The European Union in Global Climate Governance: a "critical" Role for the Climate Negotiations
No full textBu tez, küresel iklim yönetişimini ve Avrupa Birliği'nin (AB) Birleşmiş Milletler İklim Değişikliği Çerçeve Sözleşmesi (BMİDÇS) çerçevesindeki Taraflar Konferansı (COP) müzakerelerindeki rolünü incelemeyi amaçlamaktadır. Bu tez, "norm yaşam döngüsü" olarak literatüre tanıtılan analitik çerçeveyi göz önünde bulundurarak ve AB'nin iklim politikaları ve COP müzakereleri sırasındaki tutarlı pozisyonlarına bağlı olarak AB'nin iklim politikalarındaki rolünü inşacı argümanlar bağlamında yeniden yorumlamayı amaçlamaktadır. Bulgular, AB'nin küresel iklim yönetişimindeki rolünün, üretken politikaları ve COP müzakereleri sırasındaki tutarlı tutumu temelinde "örnek gösteren liderlik" iddiasına dayanan bir normatif çerçeve ile ilişkili olduğunu ortaya koymaktadır. Seçilen COP müzakereleri sırasında AB'nin resmi söylemi, iklim rejiminin meşruiyetini güçlendiren taahhütlerini ve bağlılıklarını ortaya koymaktadır. Bu bulgular, iklim yönetişimini ilerletmede meşruiyet ve otoritenin önemini ve AB'nin bu süreçteki rolünü vurgulamaktadır.This thesis aims to examine global climate governance and the role of the European Union (EU) throughout the Conference of Parties (COP) negotiations as the main supreme body of the United Nations Convention Framework Convention on Climate Change (UNFCCC). This thesis considers analytical frames introduced in the literature, such as the "norm life cycle" and reinterprets the EU's role in climate politics within the scope of constructivist arguments. The findings reveal that the EU's role in global climate governance is related to a normative framework based on its claim of a "leading by example" role given its productive policies and consistent position addressing the significance of climate change during the COP negotiations. The EU's official discourse is traced during the selected COP negotiations that demonstrate its pledges and commitments reinforcing the legitimacy of the climate regime. These findings highlight the importance of legitimacy and authority in advancing climate governance and in the EU's role in the process
Reply To the Comment on Two-Dimensional Penta-Like Pdpse With a Puckered Pentagonal Structure: a First-Principles Study' by S. Chowdhury, F. Shojaei and B. Mortazavi, Phys. Chem. Chem. Phys., 2023, 25, Doi: 10.1039/D2cp01587k
No full textInvestigating Failure Behavior of Adhesive Joints With Dissimilar Materials of Steel and Additively Manufactured Pla
No full textIn this study, the failure behavior of adhesive joints comprising two dissimilar materials of stainless steel (SS) 304 and additively manufactured polylactic acid (PLA) in different dimensions was investigated. The adherends were attached through a thin layer of structural adhesive called Araldite 2011 to prepare single-lap joint specimens. The specimens were mechanically tested in a uniaxial tensile test. Finite element analyses (FEAs) of the single-lap joints were carried out to simulate the damage initiation and propagation by employing the three-dimensional cohesive zone model (CZM). The comparison of FEA results with the results of the physical tensile tests for the single-lap joints showed high accuracy reflecting that the applied FE process was successful in modeling PLA/SS adhesive joints. Stress analyses were also performed to depict the stress distribution in the single-lap joints and reveal the critical points of each adherend and the adhesive layer
Study of Helical Antenna Endowing Short Wire Length and Compact Structure for High-Frequency Operations and Its Exclusive Manufacturing Process
No full textIn this paper a study of a helical antenna resonating at high-frequency (HF) band with a very compact structure is reported. The designed antenna's S11 parameter magnitude change with frequency was calculated for different geometrical parameters. For each case, first, only a single parameter was changed. Then for a fair comparison, multiple parameters were changed simultaneously while the total wire length was set to be constant. Also, shifts in resonance frequencies and variations in -10 dB bandwidths were investigated. Our results show that resonance behaviour changes distinctively with the geometrical parameters and it allows shortening of the antenna wire length. For the designed antenna, the resonances shift to lower frequencies and -10 dB bandwidths around the resonances decrease as the winding wire thickness, number of turns, and turn radius increase. Whereas as the turn spacing increases the resonances shift to higher frequencies and -10 dB bandwidths widen, although the total wire length of the antenna increases. To verify the simulation results, the designed antenna was fabricated with an exclusive manufacturing process and characterized. The measurement results are in good agreement with the simulation results. It demonstrates the feasibility of the proposed manufacturing technique, which is new in the literature and enables accurate and rigid antenna fabrication with simple and low-cost steps
Deep Learning-Based Autonomous Uav-Bss for Ngwns: Overview and a Novel Architecture
No full textTo address the ever-growing connectivity demand in communications, the adoption of ingenious solutions, such as utilization of unmanned aerial vehicles (UAVs) as mobile base stations, is imperative. In general, the location of a UAV base station (UAV-BS) is determined by optimization algorithms, which have high computationally complexities and are hard to run on UAVs due to energy consumption and time constraints. In this article, we overview the UAV-BS trajectory optimization problem for next generation wireless networks and show that a convolutional neural network (CNN) model can be trained to infer the location of a UAV-BS in real time. To this end, we create a framework to determine the UAV-BS locations considering the deployment of mobile users (MUs) to generate labels by using the data obtained from an optimization algorithm. Performance evaluations reveal that once the CNN model is trained with the given labels and locations of MUs, the proposed approach is, indeed, capable of approximating the results given by the adopted optimization algorithm with high fidelity, outperforming reinforcement learning-based approaches in resource-constrained settings. We also explore future research challenges and highlight key issues