Zobrazeno 1 - 10
of 5 492
pro vyhledávání: '"Strzelecki A"'
Autor:
Strzelecki, Michał
The operators $\Lambda_m$ ($m\in\mathbb{N}\cup \{0\}$) arise when one studies the action of the Beurling-Ahlfors transform on certain radial function subspaces. It is known that the weak-type $(1,1)$ constant of $\Lambda_0$ is equal to $1/\ln(2)\appr
Externí odkaz:
http://arxiv.org/abs/2411.09340
We show an abstract critical point theorem about existence of infinitely many critical orbits to strongly indefinite functionals with sign-changing nonlinear part defined on a dislocation space with a discrete group action. We apply the abstract resu
Externí odkaz:
http://arxiv.org/abs/2410.13315
Autor:
Zagała Kacper, Strzelecki Artur
Publikováno v:
Physical Culture and Sport: Studies and Research, Vol 83, Iss 1, Pp 50-62 (2019)
Sport used to be practiced and watched only live. Over time, it started to be broadcast by the radio or television. The development of sport on the Internet has led to the emergence of eSports and professionalization of virtual sports competitions. F
Externí odkaz:
https://doaj.org/article/123f90cc94524b1ab8e06faf9dfd8b61
In the paper, we utilize the recent variational, abstract theorem to show the existence of homoclinic solutions to the Hamiltonian system $$ \dot{z} = J D_z H(z, t), \quad t \in \mathbb{R}, $$ where the Hamiltonian $H : \mathbb{R}^{2N} \times \mathbb
Externí odkaz:
http://arxiv.org/abs/2405.20908
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract The Arctic is rapidly losing its sea ice cover while the region warms faster than anywhere else on Earth. As larger areas become ice-free for longer, winds strengthen and interact more with open waters. Ensuing higher waves also increase coa
Externí odkaz:
https://doaj.org/article/ddf3bd803c00472db81692cbbd8c11f2
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-8 (2024)
Abstract The widespread retreat of Svalbard glaciers has been frequently interrupted by short-lived surge advances. In the case of marine-terminating glaciers this is often expressed in the remodelling of coastal zones. Here, we analyzed the coastal
Externí odkaz:
https://doaj.org/article/5d446ce165484cb4bf9ab8364af2538c
Autor:
Agata Gabryelska, Szymon Turkiewicz, Piotr Kaczmarski, Adrian Gajewski, Piotr Białasiewicz, Dominik Strzelecki, Maciej Chałubiński, Marcin Sochal
Publikováno v:
Translational Psychiatry, Vol 14, Iss 1, Pp 1-6 (2024)
Abstract Obstructive sleep apnea (OSA) is characterized by co-occurrence with affective disorders. Our study aims to investigate the association of circadian clock gene expressions, and the presence and severity of depressive symptoms in OSA patients
Externí odkaz:
https://doaj.org/article/d7469c8dc36b4914b4ac8943eaf6eb91
Autor:
Raczyński Lech, Moskal Paweł, Kowalski Paweł, Wiślicki Wojciech, Bednarski Tomasz, Białas Piotr, Czerwiński Eryk, Gajos Aleksander, Kapłon Łukasz, Kochanowski Andrzej, Korcyl Grzegorz, Kowal Jakub, Kozik Tomasz, Krzemień Wojciech, Kubicz Ewelina, Niedźwiecki Szymon, Pałka Marek, Rudy Zbigniew, Salabura Piotr, Gupta-Sharma Neha, Silarski Michał, Słomski Artur, Smyrski Jerzy, Strzelecki Adam, Wieczorek Anna, Zieliński Marcin, Zoń Natalia
Publikováno v:
Nukleonika, Vol 61, Iss 1, Pp 35-39 (2016)
Nowadays, in positron emission tomography (PET) systems, a time of flight (TOF) information is used to improve the image reconstruction process. In TOF-PET, fast detectors are able to measure the difference in the arrival time of the two gamma rays,
Externí odkaz:
https://doaj.org/article/18a73d5c7937416a8150bb6675ae8203
Autor:
Krzemień Wojciech, Bała Mateusz, Bednarski Tomasz, Białas Piotr, Czerwiński Eryk, Gajos Aleksander, Gorgol Marek, Jasińska Bożena, Kamińska Daria, Kapłon Łukasz, Korcyl Grzegorz, Kowalski Paweł, Kozik Tomasz, Kubicz Ewelina, Niedźwiecki Szymon, Pałka Marek, Raczyński Lech, Rudy Zbigniew, Rundel Oleksandr, Sharma Neha Gupta, Silarski Michał, Słomski Artur, Stola Karol, Strzelecki Adam, Trybek Damian, Wieczorek Anna, Wiślicki Wojciech, Zieliński Marcin, Zgardzińska Bożena, Moskal Paweł
Publikováno v:
Nukleonika, Vol 60, Iss 4, Pp 745-748 (2015)
The Jagiellonian Positron Emission Tomograph (J-PET) collaboration is developing a prototype time of flight (TOF)-positron emission tomograph (PET) detector based on long polymer scintillators. This novel approach exploits the excellent time properti
Externí odkaz:
https://doaj.org/article/b99785fc9dc14772bcee77de445aca62
Autor:
Kubicz Ewelina, Jasińska Bożena, Zgardzińska Bożena, Bednarski Tomasz, Białas Piotr, Czerwiński Eryk, Gajos Aleksander, Gorgol Marek, Kamińska Daria, Kapłon Łukasz, Kochanowski Andrzej, Korcyl Grzegorz, Kowalski Paweł, Kozik Tomasz, Krzemień Wojciech, Niedźwiecki Szymon, Pałka Marek, Raczyński Lech, Rajfur Zenon, Rudy Zbigniew, Rundel Oleksandr, Sharma Neha Gupta, Silarski Michał, Słomski Artur, Strzelecki Adam, Wieczorek Anna, Wiślicki Wojciech, Zieliński Marcin, Moskal Paweł
Publikováno v:
Nukleonika, Vol 60, Iss 4, Pp 749-753 (2015)
Results of positron annihilation lifetime spectroscopy (PALS) and microscopic studies on simple microorganisms, brewing yeasts, are presented. Lifetime of ortho-positronium (o-Ps) were found to change from 2.4 to 2.9 ns (longer-lived component) for l
Externí odkaz:
https://doaj.org/article/631b261945604d4d93fa1d87f667afd8