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8652. Remarks on two product-like constructions for copulas
- Creator:
- Durante, Fabrizio, Klement, Erich Peter, Quesada--Molina, José Juan, and Sarkoci, Peter
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- copula, ordinal sum, shuffle of Min, and concordance
- Language:
- English
- Description:
- We investigate two constructions that, starting with two bivariate copulas, give rise to a new bivariate and trivariate copula, respectively. In particular, these constructions are generalizations of the ∗-product and the ⋆-product for copulas introduced by Darsow, Nguyen and Olsen in 1992. Some properties of these constructions are studied, especially their relationships with ordinal sums and shuffles of Min.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
8653. Remembering Štefan Schwabik (1941–2009)
- Creator:
- Bečvář, Jindřich, Došlá, Zuzana, Kurzweil;, Jaroslav, Mawhin, Jean, Medková, Dagmar, and Tvrdý, Milan
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Language:
- English
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
8654. Reminiscences on Miroslav Fiedler
- Creator:
- Charles R Johnson
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- matematika, mathematics, 13, and 51
- Language:
- English
- Description:
- Charles R. Johnson.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
8655. Remittances and emigration intentions: evidence from Armenia
- Creator:
- Grigoryan, Aleksandr and Khachatryan, Knar
- Publisher:
- CERGE-EI
- Format:
- electronic, bez média, svazek, and 41 stran : tabulky, grafy.
- Type:
- model:monograph and TEXT
- Subject:
- Demografie. Populace, emigrace, imigrace, modelování a simulace, emigration, immigration, modeling and simulation, Arménie, západní země, Armenia, Western countries, 314.15-026.49, 314.15-026.48, 303.094.7, (479.25), (100-15), (048.8), 18, and 314
- Language:
- English and Czech
- Description:
- Aleksandr Grigoryan, Knar Khachatryan., Částečně tištěno napříč, Obsahuje bibliografii a bibliografické odkazy, and České a anglické resumé
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
8656. Remittances in Ukraine using household data
- Creator:
- Kuntsevych, Iuliia
- Publisher:
- CERGE-EI
- Format:
- electronic, bez média, svazek, and 26 stran : ilustrace, tabulky.
- Type:
- model:monograph and TEXT
- Subject:
- Ekonomie, mezinárodní pracovní migrace, remitence, international labor migration, emigrant remittances, Ukrajina, Ukraine, 331.556.4, 339.726-054.72, (477), (048.8), 4, and 33
- Language:
- English and Czech
- Description:
- Iullia Kuntsevytch., Částečně tištěno napříč, Obsahuje bibliografii a bibliografické odkazy, České a anglické resumé, and born digital
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
8657. Remodeling of the rat saphenous vein network in response to long-term gravitational load
- Creator:
- Lóránt, M., Nádasy, G. L., and Monos, E.
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, mapování, žíly, mapping, veins, microcirculation, gravitational load, 14, and 612
- Language:
- English
- Description:
- Our main objective was to test whether chronic orthostatic body position induces network changes in the saphenous vein superficial tributary system of the rat. Fourteen male Sprague-Dawley rats were kept in tilted tube cages (45º head-up position) for two weeks to induce chronic gravitational load to their leg veins. Ten animals housed in normal cages and four animals kept in horizontally positioned tube cages served as controls. The whole superficial network of the left saphenous vein was microprepared surgically under anesthesia, superfused with saline and observed under a videomicroscope, while normal flow and pressure were maintained in the lumen. Branching angles, lengths of venous segments and their diameters were measured offline from digitized images using special image-analyzing software. Several branching angles at the popliteal confluence were significantly reduced by 12.5-15.8 %. The in vivo diameter of the main branch (936±34 vs. 805±44 µm) and of one of the popliteal tributaries (776±38 vs. 635±36 µm) increased (p<0.05), comparing vessels from tilted animals with those from normal controls. Maintaining the animals in horizontal tube cages did not induce the above alterations. The increased diameters and reduced branching angles of the saphenous vein network observed are adaptive responses of the venous network to a long-term gravitational load., M. Lóránt, G. L. Nádasy, G. Raffai, E. Monos., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
8658. Remote ischemic preconditioning of the heart: protective responses in functional and biophysical properties of cardiac mitochondria
- Creator:
- Miroslav Ferko, Kancirová, I., Jašová, M., Slávka Čarnická, Muráriková, M., Waczulíková, I., Sumbalová, Z., Jarmila Kucharská, Oľga Uličná, Ravingerová, T., and Atila Ziegelhöffer
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, ischemie, mitochondrie, ischemia, mitochondrias, rat heart, remote preconditioning, reperfusion injury, heart mitochondria, oxygen consumption, respiratory chain, mitochondrial membrane fluidity, 14, and 612
- Language:
- English
- Description:
- Remote ischemic preconditioning (RIP)-induced protection of myocardial energetics was well documented on the level of tissue, but data concerning the involvement of mitochondria were missing. We aimed at the identification of changes in membrane properties and respiratory functions induced in rat heart mitochondria by RIP. Experiments were performed on 46 male Wistar rats divided into control and RIP-treated groups of 21 animals each. Blood flow in the occluded area was recorded by MRI angiography in four animals. RIP protocol comprised of three successive 5-min occlusions each followed by 5-min reperfusions of descending branches of the right hind limb femoral artery. The efficacy of RIP was evaluated as the extent of RIP-induced protection against damage to the functions of mitochondria isolated by differential centrifugation after 30-min global ischemia followed by 40-min reperfusion of the hearts in Langendorff mode. Assessments: mitochondrial membrane fluidity with a fluorescent probe DPH, CoQ9 and CoQ10 with HPLC, mitochondrial respiration with the Oxygraph-2k (Oroboros). Results revealed that RIP was affecting the mitochondria. The immediate protection conferred by RIP involves beneficial and prognostically significant effects: a total elimination of ischemia/reperfusion-induced depression of mitochondrial membrane fluidity and a trend for better preservation of mitochondrial state 3 respiration., M. Ferko, I. Kancirová, M. Jašová, S. Čarnická, M. Muráriková, I. Waczulíková, Z. Sumbalová, J. Kucharská, O. uličná, T. Ravingerová, A. Ziegelhöffer., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
8659. Remote preconditioning as a novel "conditioning" approach to repair the broken heart: potential mechanisms and clinical applications
- Creator:
- Ravingerova, T., Farkasova, V., Griecsova, L., Slávka Čarnická, Murarikova, M., Barlaka, E., Kolar, F., Monika Barteková, Lonek, L., Ján Slezák, and Lazou, A.
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, ischemie, ischemia, ischemia/reperfusion, remote preconditioning, innate cardioprotection, 14, and 612
- Language:
- English
- Description:
- Remote ischemic preconditioning (RIPC) is a novel strategy of protection against ischemia-reperfusion (IR) injury in the heart (and/or other organs) by brief episodes of non-lethal IR in a distant organ/tissue. Importantly, RIPC can be induced noninvasively by limitation of blood flow in the extremity implying the applicability of this method in clinical situations. RIPC (and its delayed phase) is a form of relatively short-term adaptation to ischemia, similar to ischemic PC, and likely they both share triggering mechanisms, whereas mediators and end-effectors may differ. It is hypothesized that communication between the signals triggered in the remote organs and protection in the target organ may be mediated through substances released from the preconditioned organ and transported via the circulation (humoral pathways), by neural pathways and/or via systemic anti-inflammatory and antiapoptotic response to short ischemic bouts. Identification of molecules involved in RIPC cascades may have therapeutic and diagnostic implications in the management of myocardial ischemia. Elucidation of the mechanisms of endogenous cardioprotection triggered in the remote organ could lead to the development of diverse pharmacological RIPC mimetics. In the present article, the authors provide a short overview of RIPC-induced protection, proposed underlying mechanisms and factors modulating RIPC as a promising cardioprotective strategy., T. Ravingerova, V. Farkasova, L. Griecsova, S. Carnicka, M. Murarikova, E. Barlaka, F. Kolar, M. Bartekova, L. Lonek, J. Slezak, A. Lazou., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
8660. Removability of singularities with anisotropic growth
- Creator:
- Dont, Miroslav and Král, Jr., Josef
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- solutions of partial differential equations, removable singularities, anisotropic metric, and Minkowski’s contents
- Language:
- English
- Description:
- With help of suitable anisotropic Minkowski’s contents and Hausdorff measures some results are obtained concerning removability of singularities for solutions of partial differential equations with anisotropic growth in the vicinity of the singular set.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public