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Resource Allocation in Networked Joint Radar and Communications
No full textIn today's world, particularly in civilian sectors where situational awareness is paramount, research is being conducted on concepts that enable the joint realization of both sensing and communication functions with the upcoming 6G technology planned for near-future deployment, especially in sectors like automotive. On the other hand, efforts in the military domain to enhance situational awareness and counter evolving air threats have gained momentum with the development of systems incorporating multiple sensors for joint operation, known as radar network architectures. However, when multiple radar systems operate together, bandwidth allocation must be performed in order to avoid interference. As a contribution to the literature, this study proposes a joint radar and communication network concept applied to air defense systems, aiming to enhance their situational awareness by adopting the joint radar and communication concept commonly addressed in civilian applications. Additionally, a resource optimization problem has been addressed to maximize the performance of both radar and communication functions within the joint radar and communication network
Impact of Induction Therapy on Preventing Early Acute Kidney Allograft Rejection: a Single-Center Experience Study
No full textObjective: Acute rejection infrequently occurs among immunologically low-risk recipients within the first few weeks after transplantation, and the role of induction treatment in the frequency of acute rejection and graft loss remains debatable. Materials and Methods: This retrospective study analyzed 208 kidney transplant recipients with low immunological risk, defined by living donortransplantation, no priortransplantation history, absence of preformed anti-HLA antibodies, and a negative lymphocyte crossmatch prior to transplantation. Demographic data, immunologic characteristics, and graft functions were analyzed concerning early acute rejection history. Results: Fifteen patients (7.2%) experienced acute rejection within two weeks post- transplantation. No correlation was found between the number of HLA mismatches and induction treatment with early acute rejection. The cumulative incidences of acute rejection in the no-induction and basiliximab groups were comparable at 7.8% and 6.4%, respectively. Donor age was markedly higher, and the tacrolimus trough level on the seventh day post-transplantation was significantly lower in the early acute rejection group; however, the significance was lost after adjustment. The incidence of graft loss was higher in the early acute rejection cohort than in the no-rejection cohort (33.3% vs. 3.1%, p0.001). Early acute rejection was the only independent risk factor for graft failure (HR 10.286, CI 1.944-54.409, p=0.006). Conclusion: Acute rejection within two weeks post-transplantation has been associated with suboptimal graft function in recipients with low immunological risk. Basiliximab does not provide additional advantages in preventing early acute rejection in patients with a low immunological risk on tacrolimus-based immunosuppression
Adapting for Change: the Evolution of Degrowth Repertoire of Contention and Public Policy Influence
No full textConceptual studies explain how degrowth principles can contribute to organizing beyond the destructive forces of capitalism. But little has been given to theorizing the evolution in degrowth repertoire of contention that aims to influence public policy around production and consumption practices. Drawing on an eight-year ethnographic study of the degrowth movement in Lille, France, we explore the evolution of its repertoire of contention by identifying the goals, strategies, and actions defining each phase. This analysis illustrates how the movement adapted its repertoire to overcome challenges and advance its political agenda, shedding light on key shifts in activism and engagement with policymakers. Our findings have implications for consumer research, degrowth movements, and public policy
Clinical Characteristics and Treatment Response of Treatment Requiring Retinopathy of Prematurity (ROP) in Big Premature Infants in Turkiye: BIG-ROP Study Group Report No 2 (BIG-ROP Study)
No full textBekmez, Sinan/0000-0002-7849-2717;Objective This study evaluated the clinical characteristics and treatment outcomes of bigger premature infants treated for retinopathy of prematurity (ROP). Methods A retrospective, multicentre study analysed data from 33 ROP centres in T ; uuml;rkiye. Infants with gestational ages (GA) of 32-37 weeks and birth weights (BW) >1500 g who required ROP treatment were included. Patient demographics, clinical details, treatments, responses and complications were recorded. Descriptive statistics were calculated after excluding cases with missing or erroneous data. Results The study included 365 eyes of 365 infants. The average GA at birth was 33 +/- 1 weeks, with a mean BW of 1896 +/- 316 g. Of these, 83.6% had type 1 ROP, and 16.4% had aggressive ROP (A-ROP). Treatment-requiring ROP (TR-ROP) occurred at an average postmenstrual age of 39.0 +/- 4.6 weeks. Among 170 infants with TR-ROP at their first exam, 81.2% were screened at 4 weeks postpartum. Reactivation of ROP was observed in 5.4% of the primary laser photocoagulation (LPC) group and 23.9% of the primary anti-vascular endothelial growth factor (VEGF) group (p0.001). Reactivation and progression to stage 4-5 were more frequent in A-ROP cases (p=0.012; p=0.008). The need for additional treatment was significantly higher in cases of A-ROP, zone 1 disease or stage 4-5 disease (p0.001). Anti-VEGF therapy demonstrated superior single-treatment success rates in A-ROP eyes compared with laser LPC (85.7% vs 60%, p=0.03). Infants requiring additional treatments also had higher rates of respiratory distress syndrome (RDS), maternal premature rupture of membranes (PROM) and non-ophthalmological surgical interventions (p0.05). Conclusion Bigger premature infants in low and middle-income countries should be screened earlier than 4 weeks after birth. A-ROP, zone 1 disease and stage 4-5 disease have higher reactivation risks. Primary anti-VEGF therapy was associated with a greater need for retreatment. Maternal PROM, RDS and surgical interventions also increase retreatment risk. Limitations include retrospective design and lack of smaller preterm comparisons, potentially limiting generalisability
Unconventional Monetary Policies and Foreign Exchange Swaps: the Case of Turkey
No full textTo manage the risks from increased global liquidity after the 2008-2009 financial crisis, the Central Bank of Turkey (CBRT) heavily resorted to using the required reserve ratio, in addition to its conventional policy rate, as an active monetary policy tool. Additionally, it introduced new tools such as an asymmetric interest rate corridor and a reserve option mechanism. This study estimates a shadow interest rate to assess the CBRT's post-crisis monetary policy stance. This shadow rate coincides with the CBRT's weighted average funding rate (WAFC) until the end of 2016, indicating minimal impact from unconventional tools. However, from late 2016 to the end of 2017, the shadow rate is below the WAFC. We link this divergence to Turkish banks' increasing swap exchange transactions and the resulting liquidity inflows of Turkish lira from overseas markets. Our results indicate that the transmission mechanism of monetary policy could be improved with better coordination of conventional and unconventional tools, as some of these tools exhibited isolating effects. Additionally, monitoring and managing off-balance sheet transactions can enhance the effectiveness of monetary policy.The work was supported by the Turkiye Bilimsel ve Teknolojik Ara ; scedil;t ; imath;rma KurumuTurkiye Bilimsel ve Teknolojik Arascedil;timath;rma Kurum
Measurement of Photonuclear Jet Production in Ultraperipheral (Formula Presented) Collisions at (Formula Presented) With the Atlas Detector
No full textIn ultrarelativistic heavy ion collisions at the LHC, each nucleus acts a sources of high-energy real photons that can scatter off the opposing nucleus in ultraperipheral photonuclear ((Formula presented)) collisions. Hard scattering processes initiated by the photons in such collisions provide a novel method for probing nuclear parton distributions in a kinematic region not easily accessible to other measurements. ATLAS has measured production of dijet and multijet final states in ultraperipheral (Formula presented) collisions at (Formula presented) using a dataset recorded in 2018 with an integrated luminosity of (Formula presented). Photonuclear final states are selected by requiring a rapidity gap in the photon direction; this selects events where one of the outgoing nuclei remains intact. Jets are reconstructed using the anti-(Formula presented) algorithm with radius parameter, (Formula presented). Triple-differential cross sections, unfolded for detector response, are measured and presented using two sets of kinematic variables. The first set consists of the total transverse momentum ((Formula presented)), rapidity, and mass of the jet system. The second set uses (Formula presented) and particle-level nuclear and photon parton momentum fractions, (Formula presented) and (Formula presented), respectively. The results are compared with leading-order perturbative QCD calculations of photonuclear jet production cross sections, where all leading order predictions using existing fits fall below the data in the shadowing region. More detailed theoretical comparisons will allow these results to strongly constrain nuclear parton distributions, and these data provide results from the LHC directly comparable to early physics results at the planned Electron-Ion Collider. © 2025 CERN, for the ATLAS Collaboration.Ministerio de Ciencia, Innovación y Universidades, MCIU; BSF-NSF; Australian Research Council, ARC; DRAC; La Caixa Banking Foundation; BMWFW; Centre National pour la Recherche Scientifique et Technique, CNRST; Fundação para a Ciência e a Tecnologia, FCT; European Union, Future Artificial Intelligence Research; Cooperative Research Centres, Australian Government Department of Industry, CRCs; Center for Advancing Research Impact in Society, ARIS; National Science Foundation, NSF; CEA-DRF; Science and Technology Facilities Council, STFC; Horizon 2020, ICSC-NextGenerationEU; H2020 Marie Skłodowska-Curie Actions, MSCA; INFN-CNAF; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ; Nederlandse Organisatie voor Wetenschappelijk Onderzoek, NWO; Ministry of Science and Technology, Taiwan, MOST; Israel Science Foundation, ISF; Wallenberg Foundation; Leverhulme Trust; Baden-Württemberg Stiftung, BWS; MVZI; PROMETEO; Neubauer Family Foundation, NFF; Staatssekretariat für Bildung, Forschung und Innovation, SBFI; IDUB AGH; Generalitat de Catalunya; Instituto Nazionale di Fisica Nucleare, INFN; Austrian Science Fund, FWF; Yerevan Physics Institute; Agencia Nacional de Investigación y Desarrollo, ANID; Bundesministerium für Bildung und Forschung, BMBF; Helmholtz-Gemeinschaft, HGF; Danmarks Grundforskningsfond, DNRF; Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq; Forskningsrådet för hälsa, arbetsliv och välfärd, FORTE; Karlsruhe Institute of Technology, KIT; Canarie; GridKA; Göran Gustafssons Stiftelser; European Commission, EC; European Cooperation in Science and Technology, COST; EU-ESF; International Council of Shopping Centers, ICSC; RGC; Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP; PRIMUS; Institutul de Fizică Atomică, IFA; Natural Sciences and Engineering Research Council of Canada, NSERC; Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science; GenT Programmes Generalitat Valenciana, Spain; National Science and Technology Council, NSTC; Irish Rugby Football Union, IRFU; Cantons of Bern and Geneva; Chinese Academy of Sciences, CAS; Defence Science Institute, DSI; MSTDI; MNE; Agencia Nacional de Promoción Científica y Tecnológica, ANPCyT; Royal Society; Minerva Foundation; CERN-CZ; National Research Foundation, NRF; Ministerstwo Edukacji i Nauki, MNiSW; Generalitat Valenciana, GVA; CERN; National Research Council Canada, NRC; Brookhaven National Laboratory, BNL; Alexander von Humboldt-Stiftung, AvH; Multiple Sclerosis Scientific Research Foundation, MSSRF; Caring Futures Institute, Flinders University, CFI; British Columbia Knowledge Development Fund, BCKDF; Ministry of Education, Culture, Sports, Science and Technology, MEXT; UK Research and Innovation, UKRI; Australian Education International, Australian Government, AEI; Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR, (20223N7F8K—PNRR M4.C2.1.1); Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR; The Slovenian Research and Innovation Agency, ARRS, (J1-3010); The Slovenian Research and Innovation Agency, ARRS; Deutsche Forschungsgemeinschaft, DFG, (DFG—CR 312/5-2, DFG—469666862); Deutsche Forschungsgemeinschaft, DFG; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (RPG-2020-004, NIF-R1-231091, SNSF—PCEFP2_194658); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF; European Regional Development Fund, ERDF, (IDIFEDER/2018/048); European Regional Development Fund, ERDF; Carl Tryggers Stiftelse för Vetenskaplig Forskning, (CTS-22:2312); Carl Tryggers Stiftelse för Vetenskaplig Forskning; Narodowe Centrum Nauki, NCN, (UMO-2021/40/C/ST2/00187, NCN-2021/42/E/ST2/00350, UMO-2023/49/B/ST2/04085, NCN-UMO-2019/34/E/ST2/00393, UMO-2020/37/B/ST2/01043, NCN-OPUS-2022/47/B/ST2/03059, UMO-2023/51/B/ST2/00920, UMO-2022/47/O/ST2/00148, H2020 MSCA 945339); Narodowe Centrum Nauki, NCN; Narodowa Agencja Wymiany Akademickiej, NAWA, (PPN/PPO/2020/1/00002/U/00001); Narodowa Agencja Wymiany Akademickiej, NAWA; Ministerio de Ciencia e Innovación, MCIN, (PID2021-125273NB, RYC2021-031273-I, RYC2022-038164-I, PCI2022-135018-2, RYC2020-030254-I, RYC2019-028510-I); Ministerio de Ciencia e Innovación, MCIN; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT, (FORTE CZ.02.01.01/00/22_008/0004632, PRIMUS/21/SCI/017); Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT; Grantová Agentura České Republiky, GAČR, (GACR—24-11373S); Grantová Agentura České Republiky, GAČR; Norges Forskningsråd, (RCN-314472); Norges Forskningsråd; H2020 European Research Council, ERC, (ERC-101002463); H2020 European Research Council, ERC; DNSRC, (IN2P3-CNRS); Fondo Nacional de Desarrollo Científico y Tecnológico, FONDECYT, (1240864, 1230987, 1230812); Fondo Nacional de Desarrollo Científico y Tecnológico, FONDECYT; Investissements d’Avenir Labex, (ANR-11-LABX-0012); National Natural Science Foundation of China, NSFC, (NSFC-12275265, NSFC-12175119, NSFC-12075060); National Natural Science Foundation of China, NSFC; Japan Society for the Promotion of Science, JSPS, (JP22KK0227, JP22H04944, JP23KK0245, JP22H01227); Japan Society for the Promotion of Science, JSPS; Horizon 2020 Framework Programme, H2020, (CHIST-ERA-19-XAI-00); Horizon 2020 Framework Programme, H2020; Vetenskapsrådet, VR, (VR 2022-03845, VR 2023-04654, VR 2022-04683, VR 2021-03651, VR 2018-00482, VR 2023-03403); Vetenskapsrådet, VR; FAIR-NextGenerationEU, (PE00000013); Agence Nationale de la Recherche, ANR, (ANR-20-CE31-0013, ANR-21-CE31-0013, ANR-22-EDIR-0002, ANR-21-CE31-0022); Agence Nationale de la Recherche, ANR; U.S. Department of Energy, USDOE, (ECA DE-AC02-76SF00515); U.S. Department of Energy, USDOE; Ministry of Science and Technology of the People's Republic of China, MOST, (MOST-2023YFA1609300, MOST-2023YFA1605700); Ministry of Science and Technology of the People's Republic of China, MOST; North Dakota Game and Fish Department, (CC-IN2P3); North Dakota Game and Fish Department; European Research Council, ERC, (ERC-101089007, ERC-948254); European Research Council, ERC; Knut och Alice Wallenbergs Stiftelse, (KAW 2018.0458, KAW 2019.0447, KAW 2022.0358); Knut och Alice Wallenbergs Stiftels
Impact of 68Ga-PSMA PET/MRI on the Accuracy of MRI-Derived Grading Systems for Predicting Extraprostatic Extension in Prostate Cancer
No full textObjectives: Accurate preoperative staging and prediction of extraprostatic extension (EPE) are critical for optimal surgical planning in prostate cancer (PCa). This study evaluated the diagnostic accuracy of 68Ga-PSMA PET for EPE assessment, compared it with the standardized multiparametric MRI (mpMRI)-derived EPE-grading system, and examined whether integrating semi-quantitative PSMA PET parameters improves diagnostic performance using hybrid PET/MRI. Methods: This retrospective, single-center study included treatment-na ; iuml;ve, biopsy-proven PCa patients who underwent 68Ga-PSMA-11 PET/MRI followed by radical prostatectomy. Diagnostic accuracy was assessed for clinical variables (PSA, ISUP grade), mpMRI features, mpMRI-derived EPE-grading system, visual PET findings, and semi-quantitative PET parameters (SUVmax, SUVmean, PSMA-tumor volume [PSMA-TV]). Optimal cut-offs were determined using the Youden index. Multivariate logistic regression and receiver operating characteristic (ROC) analyses were performed to compare the predictive value of clinical, mpMRI, or PET-derived variables, with histopathology as the reference standard. Results: Forty-five patients were included; EPE was histologically confirmed in 19 (42.2%). Predictors of EPE included capsular irregularity, neurovascular bundle asymmetry, curvilinear contact length >= 1.5 cm, seminal vesicle invasion, tumor size >= 14.25 mm, EPE grade >= 2, ISUP grade >= 3, overt EPE on PET, SUVmax >= 13.84, SUVmean >= 7.20, and PSMA-TV >= 1.40 cm3. The highest ROC performance (AUC = 0.890) was achieved by combining overt EPE on PET, SUVmax, and PSMA-TV. Incorporating PET parameters or tumor size into the EPE-grading system improved predictive accuracy. Conclusions: PSMA uptake in the primary tumor is an independent predictor of EPE. Integrating PSMA PET with mpMRI may provide additional information for preoperative EPE assessment.Scientific Research Projects Coordination Unit of Istanbul University-Cerrahpasa Rectorate; [26777]This research was funded by Scientific Research Projects Coordination Unit of Istanbul University-Cerrahpasa Rectorate (Project number: 26777)
Job Satisfaction and Commitment Among Turkish Humanitarian Aid Workers: The Role of Expectancy-Value and Motivation
No full textWhat are the reasons for which people contribute to humanitarian aid agencies? And what makes them more motivated? In this cross-sectional study, we relied on self-determination and situated expectancy-value theory to examine in an integrated model the degree to which expectancy for success, utility value, and perceived psychological cost predict self-determined motivation and, in turn, job satisfaction and commitment among humanitarian aid workers in Turkey. Path analyses with N = 147 Turkish employees (Mage = 27.49, SD = 9.85 years; 66.7% females) in humanitarian aid agencies showed that job satisfaction related to autonomous motivation, which was predicted by both utility value and expectancy for success. In contrast, controlled motivation failed to associate either with job satisfaction or commitment, while it was predicted positively by utility value and negatively by psychological cost. Amotivation emerged as a negative predictor of commitment and was predicted negatively by expectancy for success and positively by psychological cost. These results highlight the positive role of autonomous motivation, the negative role of cost, and the double function that utility value may serve. Practical implications for these findings are discussed
The Voyage Out Romanında Sosyo-Mekansal Düzene Yıkıcı Müdahaleler
No full textVirginia Woolf, The Voyage Out (1915) romanı boyunca, tıpkı ilk (yayınlanmamış) versiyonu olan Melymbrosia’da (1912’ye kadar birkaç yıl boyunca yazılmıştır) (De Salvo, 2004, s. xix) olduğu gibi, sosyal, fiziksel ve zihinsel alanların sürekli ve ısrarla eleştirel bir tasvirini sunmaktadır. Bu çalışma, romanın hem dönemin sosyal sistemleri tarafından oluşturulan ve yaşanılan alanın yaratımını ve kullanımını yöneten mekansal normları ve uygulamaları gösterdiğini hem de eleştirdiğini vurgulamaktadır. Woolf, kurgusu aracılığıyla, mekanların ayrıştırıcı düzenlemelerine rağmen sosyal alanın heterojen, çeşitli ve dinamik olduğunu gösterir. Bu yaklaşım, Lefebvre, Foucault ve Tuan’ın argümanlarıyla uyumludur. Bu çalışmada Bachelard da mekansal düşünce konusundaki cinsiyet normlarının bir temsilcisi olarak bahsedilmektedir. Ev, vatan ve birey ötesindeki alanlara genişletilen anlatıcının yorumları, özellikle de kadın karakterlerin bakış açılarıyla iletilenler, farklı mekansal deneyimleri sunar ve mevcut sınıfsal, ataerkil ve emperyalist ideolojilere karşı çıkar
A Novel Approach for Modeling Liner Interface Debonding in Solid Rocket Motors
No full textIn solid rocket motors, liner is applied into case/insulation and propellant interface to ensure the bonding of the propellant. Debonding occurring at the liner interface may lead to failure of the motor. The aim of this study is to develop a new approach for modeling liner interface debonding with cohesive zone model and to examine the usage of peel test for the fracture energy input of the model. To develop a cohesive zone model, peel tests and bond in tension tests are conducted. Liner's fracture energy is calculated via outputs of the peel tests and energy equations. Finite element analysis of the peel test is performed with the developed bilinear cohesive zone model. Agreement is achieved between the numerical and test results without any inverse analysis. Therefore, the developed approach can be utilized to build cohesive zone models for liners without a costly iterative procedure