Zobrazeno 1 - 10
of 3 171
pro vyhledávání: '"P P, Stepien"'
Go-or-grow approaches represent a specific class of mathematical models used to describe populations where individuals either migrate or reproduce, but not both simultaneously. These models have a wide range of applications in biology and medicine, c
Externí odkaz:
http://arxiv.org/abs/2412.05191
Autor:
Coussat, A., Krzemien, W., Baran, J., Parzych, S., Beyene, E., Chug, N., Curceanu, C., Czerwiński, E., Das, M., Dulski, K., Eliyan, K. V., Jasińska, B., Kacprzak, K., Kapłon, Ł., Klimaszewski, K., Korcyl, G., Kozik, T., Kubat, K., Kumar, D., Vendan, A. Kunimal, Lisowski, E., Lisowski, F., Mędrala-Sowa, J., Moyo, S., Mryka, W., Niedźwiecki, S., Pandey, P., del Rio, E. Perez, Raczyński, L., Rädler, M., Sharma, S., Skurzok, M., Stępień, E. Ł., Tayefi, K., Tanty, P., Wiślicki, W., Moskal, P.
In positron emission tomography acquisition (PET), sensitivity along a line of response can vary due to crystal geometrical arrangements in the scanner and/or detector inefficiencies, leading to severe artefacts in the reconstructed image. To mitigat
Externí odkaz:
http://arxiv.org/abs/2410.00669
Autor:
Dulski, K., Beyene, E., Chug, N., Curceanu, C., Czerwiński, E., Das, M., Gorgol, M., Jasińska, B., Kacprzak, K., Kapłon, Ł., Korcyl, G., Kozik, T., Kubat, K., Kumar, D., Lisowski, E., Lisowski, F., Mędrala-Sowa, J., Niedźwiecki, S., Pandey, P., Parzych, S., del Rio, E. Perez, Rädler, M., Sharma, S., Skurzok, M., Tayefi, K., Tanty, P., Stępień, E. Ł., Moskal, P.
Positron Annihilation Lifetime Spectroscopy (PALS) is a well-established non-destructive technique used for nanostructural characterization of porous materials. It is based on the annihilation of a positron and an electron. Mean positron lifetime in
Externí odkaz:
http://arxiv.org/abs/2409.07963
Autor:
Dadgar, M., Parzych, S., Ardebili, F. Tayefi, Baran, J., Chug, N., Curceanu, C., Czerwinski, E., Dulski, K., Eliyan, K., Gajos, A., Hiesmayr, B. C., Kacprzak, K., Kaplon, L., Klimaszewski, K., Konieczka, P., Korcyl, G., Kozik, T., Krzemien, W., Kumar, D., Niedzwiecki, S., Panek, D., del Rio, E. Perez, Raczynski, L., Sharma, S., Shivani, Shopa, R. Y., Skurzok, M., Ardebili, K. Tayefi, Vandenberghe, S., Wislicki, W., Stepien, E., Moskal, P.
The growing interest in human-grade total body positron emission tomography (PET) systems has also application in small animal research. Due to the existing limitations in human-based studies involving drug development and novel treatment monitoring,
Externí odkaz:
http://arxiv.org/abs/2408.00574
Autor:
Kaplon, L., Baran, J., Chug, N., Coussat, A., Curceanu, C., Czerwinski, E., Dadgar, M., Dulski, K., Gajewski, J., Gajos, A., Hiesmayr, B., Valsan, E. Kavya, Klimaszewski, K., Korcyl, G., Kozik, T., Krzemien, W., Kumar, D., Moskal, G., Niedzwiecki, S., Panek, D., Parzych, S., del Rio, E. Perez, Raczynski, L., Rucinski, A., Sharma, S., Shivani, S., Shopa, R., Silarski, M., Skurzok, M., Stepien, E., Ardebili, F. Tayefi, Ardebili, K. Tayefi, Wislicki, W., Moskal, P.
Publikováno v:
Nuclear Inst. and Methods in Physics Research, A 1051 (2023) 168186
Plastic scintillator strips are considered as one of the promising solutions for the cost-effective construction of total-body positron emission tomography, (PET) system. The purpose of the performed measurements is to compare the transparency of lon
Externí odkaz:
http://arxiv.org/abs/2407.19465
Autor:
Moskal, P., Kumar, D., Sharma, S., Beyene, E. Y., Chug, N., Coussat, A., Curceanu, C., Czerwinski, E., Das, M., Dulski, K., Gorgol, M., Jasinska, B., Kacprzak, K., Kaplanoglu, T., Kaplon, L., Klimaszewski, K., Kozik, T., Lisowski, E., Lisowski, F., Mryka, W., Niedzwiecki, S., Parzych, S., del Rio, E. P., Raczynski, L., Radler, M., Shopa, R. Y., Skurzok, M., Stepien, E. L., Tanty, P., Ardebili, K. Tayefi, Eliyan, K. Valsan, Wislicki, W.
In the state-of-the-art Positron Emission Tomography (PET), information about the polarization of annihilation photons is not available. Current PET systems track molecules labeled with positron-emitting radioisotopes by detecting the propagation dir
Externí odkaz:
http://arxiv.org/abs/2407.08574
Autor:
Iwanek, P., Soszyński, I., Stępień, K., Kozłowski, S., Skowron, J., Udalski, A., Szymański, M. K., Wrona, M., Pietrukowicz, P., Poleski, R., Mróz, P., Ulaczyk, K., Skowron, D. M., Gromadzki, M., Rybicki, K., Mróz, M. J., Ratajczak, M.
Stellar rotation, a key factor influencing stellar structure and evolution, also drives magnetic activity, which is manifested as spots or flares on stellar surface. Here, we present a collection of 18 443 rotating variables located toward the Galact
Externí odkaz:
http://arxiv.org/abs/2406.18728
We randomize the implicit two-stage Runge-Kutta scheme to improve the rate of convergence (compared to a deterministic scheme) and stability of the approximate solution (contrasted to the solution generated by the explicit scheme). For stability anal
Externí odkaz:
http://arxiv.org/abs/2404.19059
Autor:
Moskal, Paweł, Czerwiński, Eryk, Raj, Juhi, Bass, Steven D., Beyene, Ermias Y., Chug, Neha, Coussat, Aurélien, Curceanu, Catalina, Dadgar, Meysam, Das, Manish, Dulski, Kamil, Gajos, Aleksander, Gorgol, Marek, Hiesmayr, Beatrix C., Jasińska, Bożena, Kacprzak, Krzysztof, Kaplanoglu, Tevfik, Kapłon, Łukasz, Klimaszewski, Konrad, Konieczka, Paweł, Korcyl, Grzegorz, Kozik, Tomasz, Krzemień, Wojciech, Kumar, Deepak, Moyo, Simbarashe, Mryka, Wiktor, Niedźwiecki, Szymon, Parzych, Szymon, del Río, Elena Pérez, Raczyński, Lech, Sharma, Sushil, Choudhary, Shivani, Shopa, Roman Y., Silarski, Michał, Skurzok, Magdalena, Stępień, Ewa Ł., Tanty, Pooja, Ardebili, Faranak Tayefi, Ardebili, Keyvan Tayefi, Eliyan, Kavya Valsan, Wiślicki, Wojciech
Publikováno v:
Nature Communications 15, 78 (2024)
Discrete symmetries play an important role in particle physics with violation of CP connected to the matter-antimatter imbalance in the Universe. We report the most precise test of P, T and CP invariance in decays of ortho-positronium, performed with
Externí odkaz:
http://arxiv.org/abs/2401.12092
Autor:
Reena Sharma, John Bassett, Karolina M. Stepien, Andrew Oldham, Ana Jovanovic, Alison Woodall, Diane Green
Publikováno v:
JIMD Reports, Vol 65, Iss 6, Pp 382-391 (2024)
Abstract Background The clinical presentation of ARG1‐D is characterised by elevated arginine levels leading to neurological and mobility impairments. Information about long‐term outcomes in adults is lacking, which prompted us to undertake a ret
Externí odkaz:
https://doaj.org/article/1046e8b567b148329989c95b38ab4eb5
