Zobrazeno 1 - 10
of 4 868
pro vyhledávání: '"P. Lehto"'
Autor:
von Witte, Gevin, Tamarov, Konstantin, Sahin, Neva, Himmler, Aaron, Ganz, Vera, Moilanen, Jani O., Lehto, Vesa-Pekka, Kwiatkowski, Grzegorz, Kozerke, Sebastian, Ernst, Matthias
Hyperpolarized nanoparticles (NPs) offer high polarization levels with room temperature relaxation times exceeding half an hour. In this work, we demonstrate that the achievable hyperpolarization enhancement and relaxation (decay) time at room temper
Externí odkaz:
http://arxiv.org/abs/2412.10536
Autor:
Valtonen, Mauri J., Zola, Staszek, Gupta, Alok C., Kishore, Shubham, Gopakumar, Achamveedu, Jorstad, Svetlana G., Wiita, Paul J., Gu, Minfeng, Nilsson, Kari, Marscher, Alan P., Zhang, Zhongli, Hudec, Rene, Matsumoto, Katsura, Drozdz, Marek, Ogloza, Waldemar, Berdyugin, Andrei V., Reichart, Daniel E., Mugrauer, Markus, Dey, Lankeswar, Pursimo, Tapio, Lehto, Harry J., Ciprini, Stefano, Nakaoka, T., Uemura, M., Imazawa, Ryo, Zejmo, Michal, Kouprianov, Vladimir V., Davidson, Jr., James W., Sadun, Alberto, Strobl, Jan, Weaver, Z. R., Jelinek, Martin
We report the study of a huge optical intraday flare on November 12, 2021, at 2 am UT, in the blazar OJ287. In the binary black hole model it is associated with an impact of the secondary black hole on the accretion disk of the primary. Our multifreq
Externí odkaz:
http://arxiv.org/abs/2405.08627
Autor:
von Witte, Gevin, Himmler, Aaron, Hyppönen, Viivi, Jäntti, Jiri, Albannay, Mohammed M., Moilanen, Jani O., Ernst, Matthias, Lehto, Vesa-Pekka, Riikonen, Joakim, Kozerke, Sebastian, Kettunen, Mikko I., Tamarov, Konstantin
Si nanoparticles (NPs) have been actively developed as a hyperpolarized magnetic resonance imaging (MRI) contrast agent with an imaging window close to one hour. However, the progress in the development of NPs has been hampered by the incomplete unde
Externí odkaz:
http://arxiv.org/abs/2401.08320
Autor:
Tuomas O. Kiviniemi, MD, PhD, Vesa Anttila, MD, PhD, Kristiina Pälve, MD, PhD, Marko Vesanen, MD, Joonas Lehto, MD, PhD, Markus Malmberg, MD, PhD, Tuija Vasankari, MS, K.E.Juhani Airaksinen, MD, PhD, Jarmo Gunn, MD, PhD
Publikováno v:
JTCVS Open, Vol 22, Iss , Pp 332-344 (2024)
Objective: Iron supplementation may reduce postoperative anemia, blood transfusions, and infections in patients undergoing surgery. We sought to assess efficacy and safety of prophylactic intravenous iron supplementation in patients without anemia un
Externí odkaz:
https://doaj.org/article/d906da7985f2446cb0eaa40f138bc18e
Autor:
Jussi Lehto, Richard Aarnio, Jouni Tuisku, Marcus Sucksdorff, Esa Mikko Koivumäki, Marjo Nylund, Semi Helin, Johan Rajander, Jonathan Danon, Jayson Gilchrist, Michael Kassiou, Vesa Oikonen, Laura Airas
Publikováno v:
EJNMMI Research, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract Background PET imaging of activated microglia has improved our understanding of the pathology behind disability progression in MS, and pro-inflammatory microglia at ‘smoldering’ lesion rims have been implicated as drivers of disability p
Externí odkaz:
https://doaj.org/article/5bfc0ac01ca848948de80c2033366a2b
Autor:
Pasi Lehto, Sini Skarp, Taru Saukko, Hanna Säkkinen, Hannu Syrjälä, Risto Kerkelä, Samu Saarimäki, Sonja Bläuer, Katja Porvari, Lasse Pakanen, Jaana Karhu, Tero Ala-Kokko
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract Background Sepsis can lead to myocardial depression, playing a significant role in sepsis pathophysiology, clinical care, and outcome. To gain more insight into the pathophysiology of the myocardial response in sepsis, we investigated the ex
Externí odkaz:
https://doaj.org/article/506695c06c2d4e3d9f2376da1aee909c
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract Despite numerous surveys conducted across the world considering assisted death, content validity evaluations of the survey questionnaires are seldom published. Likewise, there is no previous research about the content validity of the survey
Externí odkaz:
https://doaj.org/article/3e922bb1e7484380a75d03bc0adf3897
Autor:
Karoliina Kurkinen, Olli Kärkkäinen, Soili M. Lehto, Ilona Luoma, Siiri-Liisi Kraav, Petri Kivimäki, Sebastian Therman, Tommi Tolmunen
Publikováno v:
Translational Psychiatry, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract In adolescence, psychotic-like experiences (PLE) may indicate potential prodromal symptoms preceding the onset of psychosis. Metabolomic studies have shown promise in providing valuable insights into predicting psychosis with enhanced precis
Externí odkaz:
https://doaj.org/article/ca95192a2896431bb991c7fd91350407
Autor:
Mattia Cordioli, Andrea Corbetta, Hanna Maria Kariis, Sakari Jukarainen, Pekka Vartiainen, Tuomo Kiiskinen, Matteo Ferro, FinnGen, Estonian Biobank Research Team, Markus Perola, Mikko Niemi, Samuli Ripatti, Kelli Lehto, Lili Milani, Andrea Ganna
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Low drug adherence is a major obstacle to the benefits of pharmacotherapies and it is therefore important to identify factors associated with discontinuing or being poorly adherent to a prescribed treatment regimen. Using high-quality nation
Externí odkaz:
https://doaj.org/article/3773bc4c23ae4a3ebda4b38a0205682c
Autor:
Valtonen, Mauri J., Zola, Staszek, Gopakumar, Achamveedu, Lähteenmäki, Anne, Tornikoski, Merja, Dey, Lankeswar, Gupta, Alok C., Pursimo, Tapio, Knudstrup, Emil, Gomez, Jose L., Hudec, Rene, Jelínek, Martin, Štrobl, Jan, Berdyugin, Andrei V., Ciprini, Stefano, Reichart, Daniel E., Kouprianov, Vladimir V., Matsumoto, Katsura, Drozdz, Marek, Mugrauer, Markus, Sadun, Alberto, Zejmo, Michal, Sillanpää, Aimo, Lehto, Harry J., Nilsson, Kari, Imazawa, Ryo, Uemura, Makoto, Davidson Jr, James W.
The highly variable blazar OJ~287 is commonly discussed as an example of a binary black hole system. The 130 year long optical light curve is well explained by a model where the central body is a massive black hole of 18.35$\times$10$^9$ solar mass t
Externí odkaz:
http://arxiv.org/abs/2308.03017