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Aile bağlamında çocukların duygu düzenlemesi: Ortak ebeveynliğin ve ebeveynlerin öz-şefkatinin katkıları.
No full textThe purpose of the current study was to examine the dyadic relationship between parents' self-compassion and children's emotion regulation in early childhood, with a specific focus on the mediating role of the coparenting relationship (cooperation, conflict, and triangulation). The sample of this study consisted of 361 parental dyads (361 mothers and 361 fathers) who had at least one child between 29 and 118 months (M = 70.15, SD = 18.08). Both parents reported their level of self-compassion, the coparenting quality, and their child's emotion regulation. The Actor–Partner Interdependence Model (APIM) and Actor–Partner Interdependence Mediation Model (APIMeM) analyses were conducted. APIM results showed a significant and positive relationship between parents' self-compassion and their report of child emotion regulation. In partner effects, only fathers' self-compassion was significantly and positively associated with mother-reported child emotion regulation. Additionally, both parents' self-compassion was associated with higher quality of coparenting relationship (higher cooperation, and lower conflict and triangulation) reported by themselves and their partner. However, fathers' self-compassion was not significantly associated with mothers' cooperation. Also, fathers' cooperation mediated the relationship between mothers' self-compassion and father-reported child emotion regulation, as well as the relationship between fathers' self-compassion and report of child emotion regulation. Additionally, mothers' conflict mediated the relationship between their self-compassion and father-report of child emotion regulation, as well as the relationship between fathers' self-compassion and mother-reported child emotion regulation. Implications of the findings, limitations, and future directions were discussed.Bu çalışmanın amacı, ebeveynlerin öz-şefkati ile erken çocukluk dönemindeki çocukların duygu düzenlemesi arasındaki ilişkide, ortak ebeveynlik ilişkisinin aracı rolünü (işbirliği, çatışma ve üçgenleşme) aktör-partner ilişkilerine bakarak incelemektir. Bu araştırmanın örneklemini 29-118 aylık (M=70.15, SD=18.08) çocuğu olan 361 ebeveyn ikilisi (361 anne ve 361 baba) oluşturmuştur. Her iki ebeveyn de öz-şefkat düzeylerini, ortak ebeveynlik kalitesini ve çocuğun duygu düzenlemesini bildirdiler. Aktör-Partner Karşılıklı Bağımlılık Modeli (APIM) ve Aktör-Partner Karşılıklı Bağımlılık Aracılık Modeli (APIMeM) analizleri yapıldı. APIM sonuçları, her iki ebeveynin öz-şefkati ile kendilerinin bildirdikleri çocuğun duygu düzenlemesi arasında anlamlı ve pozitif bir ilişki olduğunu gösterdi. Partner etkisininde de, yalnızca babaların öz-şefkati, anne tarafından bildirilen çocuğun duygu düzenlemesi ile anlamlı ve pozitif bir şekilde ilişkiliydi. Ek olarak, her iki ebeveynin de öz-şefkatinin, kendileri ve eşleri tarafından bildirilen daha kaliteli ortak ebeveynlik ilişkisi (daha yüksek işbirliği ve daha düşük çatışma ve üçgenleşme) ile ilişkili olduğu bulundu. Ancak babaların öz-şefkatinin, annelerin işbirliği ile anlamlı bir şekilde ilişkili olmadığı bulundu. Ayrıca, babaların işbirliği, annelerin öz-şefkati ile babanın bildirdiği çocuğun duygu düzenlemesi arasındaki ilişkiye ve ayrıca babaların öz-şefkati ile babanın bildirdiği çocuğun duygu düzenlemesi arasındaki ilişkiye aracılık etmiştir. Ek olarak, annelerin çatışması, kendilerinin öz-şefkati ile baba tarafından bildirilen çocuğun duygu düzenlemesi arasındaki ilişkiye ve ayrıca babaların öz-şefkati ile anne tarafından bildirilen çocuğun duygu düzenlemesi arasındaki ilişkiye aracılık etmiştir. Bulguların çıkarımları, sınırlamalar ve gelecekteki yönelimler tartışılmıştır
Channel modeling of reconfigurable intelligent surface-aided underwater acoustic communication system
No full textFor underwater connectivity, acoustic communication is a widely deployed technology. However, Underwater Wireless Acoustic Communication (UWAC) are subject to several channel impairments that restrict both efficiency and speed of transmission. In recent times, there has been considerable research into the potential of Reconfigurable Intelligent Surfaces (RISs) as a way to improve the efficiency of terrestrial wireless communication systems. In an effort to highlight the potential of this promising technology in the context of underwater connectivity, we aim to model RIS-assisted UWAC channel using ray tracing techniques in this study. In this context, we obtain channel impulse responses for various RIS configurations. Our results shed light into analyzing the potential of the development of RISs in UWAC providing a basis for future research
Simulation based resource optimization using a decision tree clearing function
No full textThis study presents a novel approach to resource allocation in software development teams working with Kanban. The simulation algorithm created in this study takes three types of resources, three types of work, resource capabilities, and a blocking mechanism different from the classic machine breakdown scenario. The data generated by the simulations are used to train a decision tree regression which is integrated into an optimization model as a clearing function. In numerical analysis, the research compares the decision tree clearing function to a straightforward two-step model that only takes the best of the simulation data and finds a resource allocation and a greedy heuristic algorithm which starts from an initial feasible solution and improves it step-by-step. Findings show that the developed decision tree clearing function model outperforms the other two benchmark models in mid and high amounts of data.Publisher versio
Effect of strain path during repeated rolling on microstructure, grain refinement, and mechanical properties of copper/brass multilayered composites
No full textThe effect of strain path was investigated by unidirectional, reverse, and transverse movement of working rolls. This paper aims to bring more insight in the evolution of microstructure and grain refinement in Cu/Brass multilayered composites processed by a novel method of accumulative double-pass rolling (ADPR). According to microstructural images, the strain-path change could preserve the continuity of strain-hardened layers by reducing the plastic instabilities. This is due to the better strain accommodation of layers after rotating the rolling direction. However, the cross-rolling route had more contribution on increased ductility of layers than reverserolling route. Similar impact was observed on the size of grains. The maximum and minimum grain refinement respectively took place on cross-rolled and unidirectionally-rolled composites. Regarding the mechanical properties, changing the rolling direction could positively affect the hardness, strengths, and elongation. The highest values of these properties were seen in cross-rolled composites while the lowest values were obtained in the unidirectionally-rolled composites. The observations of fracture surfaces showed the ductile nature of fracture with delamination of interfaces although Brass surfaces in cross-rolled samples possessed deeper dimples, indicating its enhanced ductilit
Pool boiling heat transfer: Thermal performance for alternating and extended operational conditions
No full textOxide formation on metallic heat transfer surfaces poses a risk parameter in high-power thermal systems maintained by multi-phase cooling. In spite of the significance for practical applications, the potential change in chemistry and morphology on the surfaces exposed to continuous or alternating boiling process plays a vital role in heat transfer efficiency. In this comprehensive study, the effect of heat flux rate, boiling crisis, operation time, surface roughness, and pre-oxidation by the system calibration on oxide layer formation and its inevitable effect on boiling heat transfer (BHT) have been evaluated separately. A sort of experimental scenarios rather representing real operating conditions encountered in phase-change cooling apparatuses were carried out on smooth and rough copper substrates in saturated de-ionized water at atmospheric pressure. In order to practice the scenarios, a series of subsequent critical heat flux (CHF) runs and continuous boiling operations at certain heat flux levels ranging between 15 and 60 W/cm2 were performed within different numbers and sequences as a part of the Design of Experiments (DOE). Each operating scenario was analyzed and compared individually, while questions regarding the effect of the number of CHF runs, heat flux level during long-term operation, surface roughness, pre-oxidation, and rigorous long-term stability operation on boiling heat transfer were examined exhaustively. As a result, CHF and maximum heat transfer coefficient (HTC) of all surfaces exposed to boiling processes considerably enhanced at different rates corresponding to applied scenarios. The rate of heat flux level applied on heating surfaces was not determined to be a significant factor, whereas the HTC and CHF enhanced as the number of subsequent boiling crises (CHF runs) ultimately raised. On the other hand, HTC of the surface non-exposed to CHF runs demonstrated a drastic enhancement by 45% after 24 h of continuous boiling exposure at 45 W/cm2 compared to initial performance with 1.0 W/cm2K. The heat transfer from the surfaces exposed to extended long-term operations showed a final stable thermal behavior, while CHF values doubled from an initial value of approximately ∼73 W/cm² to 144.7 W/cm2 as exposure time increased. X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), and scanning electron microscope (SEM) analyses were executed to evaluate the influence of micro-nano-scale oxide particles/layers developed on the heater surfaces and to interpret the changes in heat transfer performance.German Research Foundation (DFG
Unified atmospheric attenuation models for visible and infrared wavelengths
No full textOptical wireless communication (OWC) encompasses the utilization of optical frequencies, including visible light (VL) and infrared (IR), for unguided data transmission. Two common terms within this field are free-space optical (FSO) communication, which involves laser-based systems for long-distance point-to-point transmission at IR wavelengths, and visible light communication (VLC), which refers to LED-based systems with shorter transmission ranges at VL wavelengths. For outdoor operation of these systems, it is critical to understand the interaction of optical signals with the propagation environment. The extinction coefficient measures how strongly a light at a specific wavelength is attenuated as a result of its passage through a medium. Over the years, many studies have attempted to determine the extinction coefficient in various atmospheric conditions; however, the majority of these studies are limited to the IR spectrum and also come with several other constraints. In this paper, we use MODTRAN (MODerate resolution atmospheric TRANsmission) software, which solves the radiative transfer equation (RTE) for the given input parameters of operation wavelength, the observer altitude, target altitude, and path length in km. First, we extract the transmittance of the optical beam through fog, rain, cloud, drizzle, and aerosol through extensive simulations in the MODTRAN for optical wavelengths of 350-1550 nm. Then, we use a non-linear curve fitting to obtain closed-form expressions for all these atmospheric conditions. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved
Accelerating photoacoustic microscopy by reconstructing undersampled images using diffusion models
No full textPhotoacoustic Microscopy (PAM) integrates optical and acoustic imaging, offering enhanced penetration depth for detecting optical-absorbing components in tissues. Nonetheless, challenges arise in scanning large areas with high spatial resolution. With speed limitations imposed by laser pulse repetition rates, the potential role of computational methods is highlighted in accelerating PAM imaging. We propose a novel and highly adaptable algorithm named DiffPam that utilizes diffusion models to speed up the photoacoustic imaging process. We leveraged a diffusion model trained exclusively on natural images, comparing its performance with an in-domain trained U-Net model using a dataset focused on PAM images of mice brain microvasculature. Our findings indicate that DiffPam performs similarly to a dedicated U-Net model without needing a large dataset. We demonstrate that scanning can be accelerated fivefold with limited information loss. We achieved a 24.70% increase in peak signal-to-noise ratio and a 27.54% increase in structural similarity index compared to the baseline bilinear interpolation method. The study also introduces the efficacy of shortened diffusion processes for reducing computing time without compromising accuracy. DiffPam stands out from existing methods as it does not require supervised training or detailed parameter optimization typically needed for other unsupervised methods. This study underscores the significance of DiffPam as a practical algorithm for reconstructing undersampled PAM images, particularly for researchers with limited artificial intelligence expertise and computational resources.Publisher versio
CALPAGAN: Calorimetry for particles using generative adversarial networks
No full textIn this study, a novel approach is demonstrated for converting calorimeter images from fast simulations to those akin to comprehensive full simulations, utilizing conditional Generative Adversarial Networks (GANs). The concept of Pix2pix is tailored for CALPAGAN, where images from fast simulations serve as the basis (condition) for generating outputs that closely resemble those from detailed simulations. The findings indicate a strong correlation between the generated images and those from full simulations, especially in terms of key observables like jet transverse momentum distribution, jet mass, jet subjettiness, and jet girth. Additionally, the paper explores the efficacy of this method and its intrinsic limitations. This research marks a significant step towards exploring more efficient simulation methodologies in high-energy particle physics.SCOAP3 ; TÜBİTAKPublisher versio
K0S and Λ(Λ) two-particle femtoscopic correlations in PbPb collisions at √NN = 5.02TeV
No full textTwo-particle correlations are presented for KS0, [Formula presented], and [Formula presented] strange hadrons as a function of relative momentum in lead-lead collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The dataset corresponds to an integrated luminosity of 0.607nb−1 and was collected using the CMS detector at the CERN LHC. These correlations are sensitive to quantum statistics and to final-state interactions between the particles. The source size extracted from the KS0KS0 correlations is found to decrease from 4.6 to 1.6 fm in going from central to peripheral collisions. Strong interaction scattering parameters (i.e., scattering length and effective range) are determined from the [Formula presented] and [Formula presented] (including their charge conjugates) correlations using the Lednický–Lyuboshitz model and are compared to theoretical and other experimental results.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); MoER, ERC PUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); 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); LAS (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 (USA).r 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, 884104, and COST Action CA16108 (European Union); the Leventis Foundation; The Alfred P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the F.R.S.-FNRS and FWO (Belgium) under the "Excellence of Science -EOS" -be.h project n. 30820817; the Beijing Municipal Science & Technology Commission, No. Z191100007219010; The Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Hellenic Foundation for Research and Innovation (HFRI), Project Number 2288 (Greece); the Deutsche Forschungsgemeinschaft (DFG), under Germany's Excellence Strategy -EXC 2121 "Quantum Universe" -390833306, and under project number 400140256 -GRK2497; the Hungarian Academy of Sciences, the New National Excellence Program -UNKP, the NKFIH research grants K 124845, K 124850, K 128713, K 128786, K 129058, K 131991, K 133046, K 138136, K 143460, K 143477, 2020-2.2.1-ED-2021-00181, and TKP2021-NKTA-64 (Hungary); the Council of Science and Industrial Research, India; 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; 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 B05F650021 (Thailand); the Kavli Foundation; the Nvidia Corporation; the SuperMicro Corporation; the Welch Foundation, contract C-1845; and the Weston Havens Foundation (USA).Publisher versio
