A5031735224- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Characterization and Applications of Magnetic Nanoparticles
- Particle Detector Development and Performance
- Solar and Space Plasma Dynamics
- Atomic and Subatomic Physics Research
- Space Science and Extraterrestrial Life
- Magnetic properties of thin films
- Geomagnetism and Paleomagnetism Studies
- Fluid Dynamics and Turbulent Flows
- Computational Physics and Python Applications
- Astro and Planetary Science
- Prostate Cancer Diagnosis and Treatment
- Physics of Superconductivity and Magnetism
- CCD and CMOS Imaging Sensors
- Prostate Cancer Treatment and Research
- High-Energy Particle Collisions Research
- Atmospheric Ozone and Climate
- Particle Accelerators and Free-Electron Lasers
- Magnetic Bearings and Levitation Dynamics
- Earthquake Detection and Analysis
- Paranormal Experiences and Beliefs
- Radiomics and Machine Learning in Medical Imaging
Boğaziçi University
2018-2024
Istinye University
2021-2024
University of Manchester
2024
A bstract We present results of the Relic Axion Dark-Matter Exploratory Setup (RADES), a detector which is part CERN Solar Telescope (CAST), searching for axion dark matter in 34.67 μ eV mass range. radio frequency cavity consisting 5 sub-cavities coupled by inductive irises took physics data inside CAST dipole magnet first time using this filter-like haloscope geometry. An exclusion limit with 95% credibility level on axion-photon coupling constant g aγ ≳ 4 × 10 − 13 GeV 1 over range 34 ....
The CAST-CAPP axion haloscope, operating at CERN inside the CAST dipole magnet, has searched for axions in 19.74 $\mu$eV to 22.47 mass range. detection concept follows Sikivie haloscope principle, where Dark Matter convert into photons within a resonator immersed magnetic field. is an array of four individual rectangular cavities inserted strong phase-matched maximize sensitivity. Here we report on data acquired 4124 h from 2019 2021. Each cavity equipped with fast frequency tuning mechanism...
Intrinsic density-based particle separation is fundamental to biomedical research and materials science. Magnetic levitation offers an accessible label-free approach; however, current platforms are limited by throughput, complex fabrication requirements, manual analysis methods. Here, we demonstrate a high-throughput magnetic levitation-based microfluidic device fabricated using commercial 3D printing, integrated with dual automated systems. The features optimized magnet configurations wide...
Celestial observations often exhibit inexplicable planetary dependencies when the timing of an observable is projected onto heliocentric positions. This possible only for incident, non-relativistic streams. Notably, celebrated dark matter (DM) in Universe can form streams our vicinity with speeds about 240 km/s. Since gravitational impact scales $1/(\text{velocity})^2$, all solar system objects, including Sun and Moon, act as strong lenses, their focal planes located within system. Even Moon...
Recently discovered exotic magnetic configurations, namely solitons appearing in the presence of bulk or interfacial Dzyaloshinskii-Moriya Interaction (i-DMI), have excited scientists to explore their potential applications emerging spintronic technologies such as race-track memory, spin logic, radio frequency nano-oscillators and sensors. Such studies are motivated by foreseeable advantages over conventional micro-magnetic structures due small size, topological stability easy spin-torque...
Abstract This study aimed to enhance the accuracy of Gleason grade group (GG) upgrade prediction in prostate cancer (PCa) patients who underwent MRI-guided in-bore biopsy (MRGB) and radical prostatectomy (RP) through a combined analysis prebiopsy MRGB clinical data. A retrospective 95 with diagnosed by was conducted where all had undergone RP. Among patients, 64.2% consistent GG results between biopsies RP, whereas 28.4% upgraded 7.4% downgraded results. GG1 results, lower core count, fewer...
Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope has been searching via their back conversion to x-ray photons in 9-T 10-m long magnet directed toward Sun. We report on an extended run with International Observatory pathfinder detector, doubling previous exposure time. detector was operated xenon-based gas mixture part of new run, providing technical insights future configurations. No counts...
We investigate the prospects for direct detection of dark matter (DM) particles, incident on upper atmosphere. A recent work relating burst-like temperature excursions in stratosphere at heights ≈38–47 km with low speed invisible streaming is motivation behind this proposal. As an example, photons could match reasoning presented that provided they constitute part local DM density. Dark emerge as a U(1) symmetry within extensions standard model. mix real same total energy without need...
Anti-quark nuggets (AQNs) have been suggested to solve the dark matter (DM) and missing antimatter problem in universe proposed as an explanation of various observations. Their size is {\mu}m range their density about equal nuclear with expected flux $0.4 / km^2 year$. For typical velocity DM constituents ($\sim$250 km/s), solar system bodies act highly performing gravitational lenses. Here we assume that streams or clusters are impinging, e.g., on Earth, it was worked out for axions Weakly...
Evidence of dark matter (DM) comes from long-range gravitational observations, where it is understood to not interact with ordinary matter. However, on a much smaller scale, number unexpected phenomena contradict this idea DM. This because some solar activity and the dynamic Earth atmosphere might arise DM streams. Gravitational (self-)focusing effects by Sun or its planets streaming fit as underlying process, e.g., for otherwise puzzling 11-year cycle, mysterious heating corona fast...
It has been previously advocated that the presence of daily and annual modulations axion flux on Earth's surface may dramatically change strategy searches. The arguments were based so-called Axion Quark Nugget (AQN) dark matter model which was originally put forward to explain similarity visible cosmological densities $\Omega_{\rm dark}\sim \Omega_{\rm visible}$. In this framework, population galactic axions with mass $ 10^{-6} {\rm eV}\lesssim m_a\lesssim 10^{-3}{\rm eV}$ velocity $\langle...
"Dunkle Materie" (DM) came from unexpected cosmological observations. Nowadays within our solar system, diverse observations also defy conventional explanations, like the main physical process(es) underlying heating of different atmospheric layers. Streaming DM offers a viable common scenario following gravitational focusing by system bodies. This fits as process behind cycle, which was first signature suggesting planetary dependency. The challenge, since 1859, is to find remote impact,...
Dunkle Materie (DM) came from unexpected cosmological observations. Nowadays within our solar system, diverse observations also defy conventional explanations, like the main physical process(es) underlying heating of different atmospheric layers. Streaming DM offers a viable common scenario following gravitational focusing by system bodies. This fits as process behind cycle, which was first signature suggesting planetary dependency. The challenge, since 1859, is to find remote impact, beyond...
We are investigating the possible origin of small-scale anomalies, like annual stratospheric temperature anomalies. Unexpectedly within known physics, their observed planetary "dependency", does not match concurrent solar activity, whose impact on atmosphere is unequivocal; this points at an additional energy source exo-solar origin. A viable concept behind such observations based gravitational focusing by Sun and its planets towards Earth low-speed invisible streaming matter; influx gets...
Various solar and terrestrial observables show a planetary dependency, even though there is no remote force beyond the extremely feeble tidal force. The common viable explanation of unexpected observations gravitational lensing some generic slow stream(s) from dark sector that can be focused within system, thus pretending to not extant For example, synod Jupiter-Earth-Venus strikingly coincides with 11-year cycle. At same time, Dark Matter (DM) remains elusive, while most investigations...
"Dunkle Materie" (DM) came from unexpected cosmological observations. Nowadays within our solar system, diverse observations also defy conventional explanations, like the main physical process(es) underlying heating of different atmospheric layers. Streaming DM offers a viable common scenario following gravitational focusing by system bodies. This fits as process behind cycle, which was first signature suggesting planetary dependency. The challenge, since 1859, is to find remote impact,...