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Masses by gauge flavor dynamics
[article]
2011
arXiv
pre-print
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The * hosek@ujf.cas.cz basic idea, though not completely new [17] [18] [19] [20] [21] [22] [23] [24] , is to work with what we already have at disposal and gauge directly the flavor (family) index of ...
arXiv:1101.3456v2
fatcat:f4bi5qqtjnhgpf3ua4uftbwx3y
Comparison of Component Frameworks for Real-Time Embedded Systems
[chapter]
2010
Lecture Notes in Computer Science
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The usage of components brings significant help in development of real-time embedded systems. There have been a number of component frameworks developed for this purpose and some of them have already become well-established in this area. However, although the component frameworks share basic concepts and the general approach, they substantially differ in the range of supported features and maturity. This makes relatively difficult to select the right component framework and thus poses a
doi:10.1007/978-3-642-13238-4_2
fatcat:4b6yw6rksrd53cec5mudzwwgiq
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... ant obstacle in adoption of the component-based development for real-time embedded systems. To provide an overview, we present a survey in this paper, which illustrates distinguishing features of selected modern component-based frameworks for real-time embedded systems. The survey identifies features which are important for building systems from components in this area and compares these frameworks with respect to these features.
Comparison of component frameworks for real-time embedded systems
2013
Knowledge and Information Systems
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The usage of components brings significant help in development of real-time embedded systems. There have been a number of component frameworks developed for this purpose and some of them have already become well-established in this area. However, although the component frameworks share basic concepts and the general approach, they substantially differ in the range of supported features and maturity. This makes relatively difficult to select the right component framework and thus poses a
doi:10.1007/s10115-013-0627-9
fatcat:4kkale32enbjzec5dbkly2hqdm
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... ant obstacle in adoption of the component-based development for real-time embedded systems. To provide an overview, we present a survey in this paper, which illustrates distinguishing features of selected modern component-based frameworks for real-time embedded systems. The survey identifies features which are important for building systems from components in this area and compares these frameworks with respect to these features.
Románský meč z Hoštic na Kroměřížsku
2020
Archaeologia historica
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Žákovský-Hošek-Sedláčková 2013, 260-261; Hošek-Košta-Žákovský 2019, 35-40) . ...
Žákovský-Hošek-Sedláčková 2013, 260-261; Hošek-Košta-Žákovský 2019, 35-40) . ...
doi:10.5817/ah2020-1-17
fatcat:mf6kank4ofhijdqieomzuazcgq
Multi-version software updates
2012
2012 4th International Workshop on Hot Topics in Software Upgrades (HotSWUp)
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Petr Hosek's doctoral studies are supported by a Google European PhD Fellowship. ...
doi:10.1109/hotswup.2012.6226615
dblp:conf/hotswup/CadarH12
fatcat:mapgi3ei6jeexkr5quuh74ucky
Auxin transport at cellular level: new insights supported by mathematical modelling
2012
Journal of Experimental Botany
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Safe software updates via multi-version execution
2013
2013 35th International Conference on Software Engineering (ICSE)
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ACKNOWLEDGMENTS Petr Hosek is a recipient of the Google Europe Fellowship in Software Engineering, and this research is supported in part by this Google Fellowship. ...
doi:10.1109/icse.2013.6606607
dblp:conf/icse/HosekC13
fatcat:w2edg26bsnfsjlexcbmafld3ke
Differential Subcellular Distribution of Cytokinins: How Does Membrane Transport Fit into the Big Picture?
2021
International Journal of Molecular Sciences
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Cytokinins are a class of phytohormones, signalling molecules specific to plants. They act as regulators of diverse physiological processes in complex signalling pathways. It is necessary for plants to continuously regulate cytokinin distribution among different organs, tissues, cells, and compartments. Such regulatory mechanisms include cytokinin biosynthesis, metabolic conversions and degradation, as well as cytokinin membrane transport. In our review, we aim to provide a thorough picture of
doi:10.3390/ijms22073428
pmid:33810428
fatcat:bjgrxm43izfflfmww2hyafw77i
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... he latter. We begin by summarizing cytokinin structures and physicochemical properties. Then, we revise the elementary thermodynamic and kinetic aspects of cytokinin membrane transport. Next, we review which membrane-bound carrier proteins and protein families recognize cytokinins as their substrates. Namely, we discuss the families of "equilibrative nucleoside transporters" and "purine permeases", which translocate diverse purine-related compounds, and proteins AtPUP14, AtABCG14, AtAZG1, and AtAZG2, which are specific to cytokinins. We also address long-distance cytokinin transport. Putting all these pieces together, we finally discuss cytokinin distribution as a net result of these processes, diverse in their physicochemical nature but acting together to promote plant fitness.
Electroweak SU(2)_L × U(1)_Y model with strong spontaneously fermion-mass-generating gauge dynamics
[article]
2020
arXiv
pre-print
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Higgs sector of the Standard model (SM) is replaced by quantum flavor dynamics (QFD), the gauged flavor SU(3)_f symmetry with scale Λ. Anomaly freedom requires addition of three ν_R. The approximate QFD Schwinger-Dyson equation for the Euclidean infrared fermion self-energies Σ_f(p^2) has the spontaneous-chiral-symmetry-breaking solutions ideal for seesaw: (1) Σ_f(p^2)=M_fR^2/p where three Majorana masses M_fR of ν_fR are of order Λ. (2) Σ_f(p^2)=m_f^2/p where three Dirac masses
arXiv:2011.03312v1
fatcat:fjj7e2q3avemtfezqthxyjdgca
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... λ_3+m_(8)λ_8 of SM fermions are exponentially suppressed w.r.t. Λ, and degenerate for all SM fermions in f. (1) M_fR break SU(3)_f symmetry completely; m_(3),m_(8) superimpose the tiny breaking to U(1) × U(1). All flavor gluons thus acquire self-consistently the masses ∼Λ. (2) All m_f break the electroweak SU(2)_L × U(1)_Y to U(1)_em. Symmetry partners of the composite Nambu-Goldstone bosons are the genuine Higgs particles: (1) Three ν_R-composed Higgses χ_i with masses ∼Λ. (2) Two new SM-fermion-composed Higgses h_3, h_8 with masses ∼ m_(3), m_(8), respectively. (3) The SM-like SM-fermion-composed Higgs h with mass ∼ m_(0), the effective Fermi scale. Σ_f(p^2)-dependent vertices in the electroweak Ward-Takahashi identities imply: The axial-vector ones give rise to the W and Z masses at Fermi scale. The polar-vector ones give rise to the fermion mass splitting in f. At the present exploratory stage the splitting comes out unrealistic.
Involvement of K+ATP and Ca2+ channels in hydrogen sulfide-suppressed ageing of porcine oocytes
2018
Biological Research
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Hydrogen sulfide has been shown to improve the quality of oocytes destined for in vitro fertilization. Although hydrogen sulfide is capable of modulating ion channel activity in somatic cells, the role of hydrogen sulfide in gametes and embryos remains unknown. Our observations confirmed the hypothesis that the K ATP and L-type Ca 2+ ion channels play roles in porcine oocyte ageing and revealed a plausible contribution of hydrogen sulfide to the modulation of ion channel activity. Results: We
doi:10.1186/s40659-018-0187-2
fatcat:qf4hlpg6xzhpbbyl7x6s76djaa
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... nfirmed the benefits of the activation and suppression of the K ATP and L-type Ca 2+ ion channels, respectively, for the preservation of oocyte quality. Conclusions: Our experiments identified hydrogen sulfide as promoting the desired ion channel activity, with the capacity to protect porcine oocytes against cell death. Further experiments are needed to determine the exact mechanism of hydrogen sulfide in gametes and embryos.
Tomato (Solanum lycopersicum L.) SlIPT3 and SlIPT4 isopentenyltransferases mediate salt stress response in tomato
2015
BMC Plant Biology
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Cytokinins (CKs) are involved in response to various environmental cues, including salinity. It has been previously reported that enhancing CK contents improved salt stress tolerance in tomato. However, the underlying mechanisms of CK metabolism and signaling under salt stress conditions remain to be deciphered. Results: Two tomato isopentenyltransferases, SlIPT3 and SlIPT4, were characterized in tomato and Arabidopsis. Both proteins displayed isopentenyltransferase (IPT) activity in vitro,
doi:10.1186/s12870-015-0415-7
pmid:25888402
pmcid:PMC4404076
fatcat:lpha5xz4i5hxhj452cdfjzzjy4
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... e their encoding genes exhibited different spatio-temporal expression patterns during tomato plant development. SlIPT3 and SlIPT4 were affected by the endogenous CK status, tightly connected with CKs feedback regulation, as revealed by hormonal treatements. In response to salt stress, SlIPT3 and SlIPT4 were strongly repressed in tomato roots, and differently affected in young and old leaves. SlIPT3 overexpression in tomato resulted in high accumulation of different CK metabolites, following modifications of CK biosynthesis-, signaling-and degradation-gene expression. In addition, 35S::SlIPT3 tomato plants displayed improved tolerance to salinity consecutive to photosynthetic pigments and K + /Na + ratio retention. Involvement of SlIPT3 and SlIPT4 in salt stress response was also observed in Arabidopsis ipt3 knock-out complemented plants, through maintenance of CK homeostasis. Conclusions: SlIPT3 and SlIPT4 are functional IPTs encoded by differently expressed genes, distinctively taking part in the salinity response. The substantial participation of SlIPT3 in CK metabolism during salt stress has been determined in 35S::SlIPT3 tomato transformants, where enhancement of CKs accumulation significantly improved plant tolerance to salinity, underlining the importance of this phytohormone in stress response.
New Insights Into the Metabolism and Role of Cytokinin N-Glucosides in Plants
2020
Frontiers in Plant Science
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., 2008; Hošek et al., 2020; maize: Šmehilová et al., 2016) . ...
to base
No
Wang et al., 2011; Šimura et al., 2018;
Hošek et al., 2020
Conversion to base
Yes
Hošek et al., 2020
Localization
Apoplast,
vacuole,
(chloroplast)
Benková et al., 1999; Jiskrová ...
doi:10.3389/fpls.2020.00741
pmid:32582261
pmcid:PMC7292203
fatcat:gqobvlikkjagrki6ln47wsl23q
Inflammatory cell infiltrates, hypoxia, vascularization, pentraxin 3 and osteoprotegerin in abdominal aortic aneurysms – A quantitative histological study
2019
PLoS ONE
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(XLS) Author Contributions Formal analysis: Petr Hosek. Investigation: Tereza Blassova, Zbynek Tonar, Vladislav Treska. Methodology: Tereza Blassova, Petr Tomasek. Supervision: Jiri Molacek. ...
doi:10.1371/journal.pone.0224818
pmid:31703088
pmcid:PMC6839860
fatcat:xtimqwcykvg4pmjpoynk3bwh6q
VARAN the Unbelievable
2015
Proceedings of the Twentieth International Conference on Architectural Support for Programming Languages and Operating Systems - ASPLOS '15
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Petr is a recipient of a Google Europe Fellowship in Software Engineering, and Cristian of an Early-Career EPSRC Fellowship, and this research has been generously supported by these fellowships. ...
doi:10.1145/2694344.2694390
dblp:conf/asplos/HosekC15
fatcat:vukajy3btvcyflzhtnx3nt4ssu
Key problems of the quality of life of patients after total laryngectomy
2018
Kontakt
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Laryngeal cancer is the most frequent cancer in the head and neck area. Approximately one third of patients are treated by total laryngectomy (TL). The rate of the patient's adaptation to new conditions is crucial to the quality of his or her future life. Some patients survive tens of years after this operation. The preparation for TL is a complicated process that affects a patient's cooperation in postsurgical time. The patient is informed of the essence of the disease, treatment
doi:10.1016/j.kontakt.2018.08.006
fatcat:ydev3tspmjgldeyaq6j4u3su3u
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... the process of preoperative preparation, as well as the operation itself. Great emphasis is put on awareness of the postoperative development, the patient's good cooperation, as well as good prognosis of the disease. Losing one's voice and the cosmetic defects caused by the tracheostoma are a great problem for the patient. The aim of this study was to show the main problems that patients after total laryngectomy deal with in common life. Material: In the group, there were 102 patients who had been operated on between 2003 and 2013, 62 of which met the classification criteria. Methods: This prospective study was statistically evaluated. The frequencies of responses were processed in tables. Results: During the early postoperative period, the greatest problem of patients after total laryngectomy is their adaptation to new principles of breathing, which is subsequently followed by the adaptation to a new and different way of communication. The best option for the patient is to communicate using esophageal voice. Only 55% of operated patients use one of the verbal forms of alternative voice communication in their future lives.
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