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Recent Submissions

Development of a selective wet-chemical etchant for precise 3D sculpting of silicon enabled by infrared non-linear laser modification
Zolfaghari Borra, Mona; Radfar, Behrad; Nasser, Hisham; Çolakoğlu, Tahir; Tokel, Onur; Turnalı, Ahmet; Işık Taşgın, Dilek; Toffoli, Hande; Toffoli, Daniele; İlday, Fatih Ömer; Turan, Raşit; Pavlov, Ihor; Bek, Alpan (2024-09-01)
Recently-demonstrated high-quality three-dimensional (3D) subsurface laser processing inside crystalline silicon (c-Si) wafers opens a door to a wide range of novel applications in multidisciplinary research areas. Using t...
Influence of boron doping profile on emitter and metal contact recombination for n-PERT silicon solar cells
Bektaş, Gence; Aslan, Sercan; Keçeci, Ahmet Emin; Özyahni, Vahdet; Canar, Hasan Hüseyin; Asav, Hasan; Seyrek, Selin; Verlinden, Pierre J.; Turan, Raşit (2024-08-01)
Increasing interest in n-type silicon (Si) solar cells due to the high-quality material properties of the n-Si wafers, their relatively low sensitivity to donor-like impurities like iron and their resistance to light-induc...
Synthesis, molecular modeling, DFT studies, and EPR analysis of 1,4-dihydropyridines as potential calcium channel blockers
KOÇAK ASLAN, EBRU; Lam, Kevin; Dengiz, Çağatay; Denzinger, Katrin; Dicle Erdamar, Isık Yesim; Huang, Sun; Zamponi, Gerald W.; Wolber, Gerhard; GÜNDÜZ, MİYASE GÖZDE (2024-07-05)
1,4-Dihydropyridines (DHPs) are widely recognized as a highly effective class of L-type calcium channel blockers that offer significant therapeutic potential in managing cardiovascular conditions. Furthermore, their abilit...
Receptive and expressive vocabulary performance in 2- to 5-year-olds in care: The role of different care types and temperament
Yavaslar Dogru, Yesim; Koc-Arik, Gizem; Doğru, Onur Cem; Kazak Berument, Sibel (2024-07-01)
The detrimental role of institutionalization in children's development has prompted the introduction of alternative care types designed to offer more personalized care. The current study aimed to test whether children in a...
Theoretical investigation on graphene induced self-alignment of donor-acceptor structures
Haciefendioglu, Tugba; Aytemiz, Muhammet E.K.; Korhan, Hamza; Yıldırım, Erol (2024-06-20)
Non-covalent functionalization of graphene (Gr) with conducting polymers (CPs) improves the electrical and mechanical properties of both materials owing to the noncovalent π-π stacking interaction between the surface and t...
Annealing-free, electron-selective ohmic contacts using zirconium oxide and aluminum for n-type crystalline silicon solar cells
Madbouly, Loay Akmal; Nasser, Hisham; Borra, Mona Zolfaghari; Çiftpınar, Emine Hande; Altiner, Gokhan; Aliefendioglu, Atescan; Canar, Hasan Huseyin; Turan, Raşit; Ünalan, Hüsnü Emrah (2024-06-15)
The challenge of Fermi-level pinning significantly complicates the establishment of Ohmic, low-resistance contacts for lightly doped n-type crystalline silicon (c-Si), a critical requirement for economically feasible devic...
The expected potential of hadronic PeVatron searches with spectral γ-ray data from the Southern Wide-field Gamma-ray Observatory
Angüner, Ekrem Oğuzhan; Ergin, Tülün (2024-06-01)
The presence of a spectral softening, occurring at ∼3 PeV energies, seen in the local cosmic-ray energy spectrum provides an evidence that our Galaxy hosts astrophysical objects, known as ’hadronic PeVatrons’, that are cap...
GATA transcription factor in common bean: A comprehensive genome-wide functional characterization, identification, and abiotic stress response evaluation
Abdulla, Mohamed Farah; Mostafa, Karam; Aydin, Abdullah; Kavas, Musa; Aksoy, Emre (2024-06-01)
The GATA transcription factors (TFs) have been extensively studied for its regulatory role in various biological processes in many plant species. The functional and molecular mechanism of GATA TFs in regulating tolerance t...
QCD sum rule study of <i>J</i> <SUP> <i>P</i> </SUP>=1<SUP>±</SUP> exotic states with two heavy quarks in the molecular picture
Alıyev, Tahmasıb; Bilmiş, Selçuk; Savcı, M. (2024-06-01)
In this study, the spectroscopic parameters of exotic molecular states composed of mesons containing two heavy quarks (scalar - axial and pseudoscalar - axial meson combinations) are investigated within the QCD sum rules. ...
Structural proteomics of a bacterial mega membrane protein complex: FtsH-HflK-HflC
Akkulak, Hatice; İnce, H. Kerim; Goc, Gunce; Lebrilla, Carlito B.; Kabasakal, Burak V.; Özcan Kabasakal, Süreyya (2024-06-01)
Recent advances in mass spectrometry (MS) yielding sensitive and accurate measurements along with developments in software tools have enabled the characterization of complex systems routinely. Thus, structural proteomics a...
Performance analysis of CuSbSe2 thin-film solar cells with Cd-free window layers
SÜRÜCÜ, GÖKHAN; Bal, Ersin; Gencer, Aysenur; Parlak, Mehmet; Surucu, Ozge (2024-05-15)
This study investigates novel thin-film solar cells featuring CuSbSe2 (CASe) with ZnSnO and ZnMgO windows in the layer superstrate structure. For glass/ITO/ZnMgO/CASe/Cu + Au, the J-V measurements reveal a short-circuit cu...
Coupling Constants as Conserved Charges in Black Hole Thermodynamics
Hajian, Kamal; Tekin, Bayram (2024-05-10)
In a generic theory of gravity coupled to matter fields, the Smarr formula for black holes does not work properly if the contributions of the coupling constants defining the theory are not incorporated. However, these coup...
Scaling symmetry, Smarr relation, and the extended first law in lower-dimensional Lovelock gravity
Alkaç, Gökhan; Özen, Gökçen Deniz; Özşahin, Hikmet; Süer, Gün; Tek, Mustafa (2024-05-01)
Recently, it was discovered that lower-dimensional versions of Lovelock gravity exist as scalar-tensor theories that are examples of Horndeski gravity. We study the thermodynamics of the static black hole solutions in thes...
Coating effects of a strain sensor on durability and sensitivity using the fiber loop ringdown spectroscopy technique
KAYA, BURAK MALİK; Esentürk, Okan; AŞICI, CELAL; Sarac, Umut; DINDIŞ, GÖKHAN; BAYKUL, MEVLANA CELALETTİN (2024-05-01)
A sensor region in a single-mode optical fiber loop was created and utilized in order to study the coating effect on sensor durability and system sensitivity by the Fiber Loop Ringdown Spectroscopy (FLRDS) technique. The s...
Revealing photoluminescence and nonlinear optical absorption characteristics of PbMo0.75W0.25O4 single crystal for optical limiting applications
Doğan, Anıl; Karatay, Ahmet; Isik, Mehmet; Yıldız, Elif; Hasanlı, Nızamı; Elmalı, Ayhan (2024-05-01)
Nonlinear absorption properties of PbMo0.75W0.25O4 single crystal fabricated by the Czochralski method were studied. The band gap energy of the crystal was determined as 3.12 eV. Urbach energy which represents the defect s...
In vitro study on the competitive reactions between arsenite and selenite with glutathione
Özkan, Canan Höçük; ATAKAY, MEHMET; SALİH, BEKİR; Ertaş, Gülay (2024-05-01)
Exposure to arsenic can cause various biological effects by increasing the production of reactive oxygen species (ROS). Selenium acts as a beneficial element by regulating ROS and limiting heavy metal uptake and translocat...
Comparison and optimization of protocols and whole-genome capture conditions for ancient DNA samples
Yaka, Reyhan; Maja Krzewińska, Krzewinska; Lagerholm, Vendela Kempe; Linderholm, Anna; ÖZER, FÜSUN; Somel, Mehmet; Götherström, Anders (2024-05-01)
Ancient DNA (aDNA) obtained from human remains is typically fragmented and present in relatively low amounts. Here we investigate a set of optimal methods for producing aDNA data by comparing silica-based DNA extraction an...
Application of fiber loop ringdown spectroscopy technique for a new approach to beta-amyloid monitoring for Alzheimer Disease’s early detection
KAYA, BURAK MALİK; ÖZ, SEMİH; Esentürk, Okan (2024-05-01)
A novel fiber optic biosensor was purposed for a new approach to monitor amyloid beta protein fragment 1-42 (Aβ42) for Alzheimer’s Disease (AD) early detection. The sensor was fabricated by etching a part of fiber from sin...
Insights into Reaction Mechanisms in Liquid Metals from Density Functional Theory: CH4 Pyrolysis in BiNiX (X = Cu, Al) Molten Metals as a Case Study
Erbasan, Arda; Toffoli, Hande; Toffoli, Daniele; Gökalp, İskender; KARDAŞ, GÜLFEZA; Çelik, Gökhan (2024-04-22)
Pyrolysis of methane using molten metal catalysts in bubble column reactors presents a cleaner and coking-free alternative for hydrogen production from natural gas due to its lack of direct CO2 emissions. Bubble column rea...
Generating the level 2 subgroup by involutions
Altunöz, Tülin; Monden, Naoyuki; Pamuk, Mehmetcik; Yıldız, Oğuz (2024-04-15)
We obtain a minimal generating set of involutions for the level 2 subgroup of the mapping class group of a closed nonorientable surface.
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