This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Standard k-ω and Reynolds stress models (ANSYS Fluent v.18) and experimental measurements in a laboratory flume (using ADV) were performed. Results of both approaches showed and affirmed presence of velocity profile deformation behind the obstacle, but some discrepancies between the measured and simulated values were also observed. With increasing distance from the obstacle, the differences between the simulation and the measured data increase and the results of the numerical models are no longer usable.
The objectives of the study were to: (1) assess the strength of associations of direct CO2 and N2O emissions with the seasonal variations in the relevant soil properties under both tillage systems; 2) evaluate how CT and RT affect magnitudes of seasonal CO2 and N2O fluxes from soil. Field studies were carried out on plots for conventional tillage (up to 0.22–0.25 m) and reduced tillage (up to 0.10–0.12 m) during the growing season and post-harvest period of red clover. The results showed that daily CO2 emissions significantly correlated only with soil temperature during the growing season under conventional and reduced tillage. Soil temperature demonstrated its highest influence on daily N2O emissions only at the beginning of the growing season in both tillage systems. There were no significant inter-system differences in daily CO2 and N2O emissions from soil during the entire period of observations. Over the duration of post-harvest period, water-filled pore space was a better predictor of daily CO2 emissions from soils under CT and RT. The conventional and reduced tillage did not cause significant differences in cumulative N2O and CO2 fluxes from soil.
Karcinóm žalúdka je smrteľná choroba a je stále druhá najčastejšia príčina úmrtí na rakovinu na celom svete. Chirurgický zákrok s kompletnou resekciou tumoru, ktorá má kuratívny potenciál, zostáva hlavnou terapiou pre skoré štádiá. Bohužiaľ, väčšina pacientov s rakovinou žalúdka je diagnostikovaná v pokročilom štádiu, čím paliatívna systémová liečba zostáva jedinou liečebnou možnosťou. Najčastejšia kombinácia chemoterapie ako liečby prvej línie na liečbu pokročilého karcinómu žalúdka (PKŽ) zahŕňa zlúčeniny platiny a fluoropyrimidínov. Fluoropyrimidíny sú chrbtovou kosťou chemoterapeutických režimov pre liečbu karcinómu žalúdka. Teysuno® (S-1) je perorálny štvrtogeneračný fluoropyrimidín, v ktorom sa kombinuje tegafur, čo je prekurzor 5-fluorouracilu (5-FU) a dva biochemické modulátory: (1) 5-chlór-2,4-dihydroxypyridín, čo je silný, ale reverzibilný inhibítor dihydropyrimidíndehydrogenázy, ktorá bráni degradácii 5-FU, a (2), oxonát draselný, ktorý znižuje gastrointestinálnu (GI) toxicitu inhibíciou 5-FU fosforylácie v gastrointestinálnej sliznici. Teysuno® (S-1) ako monoterapia je štandard na adjuvantnú liečbu resekovaného karcinómu žalúdka v Japonsku a v kombinácii s cisplatinou v pokročilom ochorení na základe úrovne 1 dôkazu v klinických štúdiách fázy III. S-1 je teraz široko dostupný a bol schválený v európskych krajinách pod obchodným názvom Teysuno® ako liečba prvej línie pri PKŽ. S-1 je všeobecne dobre znášaný a vykazuje nízky toxický profil. Je to nový liek, ktorý poskytuje výhodu pohodlného a bezpečného perorálneho podávania proti intravenóznemu fluoropyrimidínu v PKŽ., Gastric cancer is a lethal disease and continues to be the second leading cause of cancer death worldwide. Surgical resection remains the main treatment for early stages with complete resection having the potential for a cure. Unfortunately, most patients with gastric cancer are diagnosed in advanced stages, rendering palliative systemic therapy as the only choice of treatment. The most common chemotherapy combination as a first-line treatment in advanced gastric cancer (AGC) includes a platinum compound and fluoropyrimidine. Fluoropyrimidines have been the backbone in the chemotherapy regimens for the treatment of gastric cancer. Teysuno® (S-1) is a peroral fourth-generation fluoropyrimidine that combines tegafur, which is a prodrug of 5-fluorouracil (5-FU), and two biochemical modulators: 5-chloro-2,4-dihydroxypyridine, a powerful but reversible inhibitor of dihydropyrimidine dehydrogenase that prevents 5-FU degradation, and potassium oxonate, which reduces gastrointestinal (GI) toxicity by inhibition of 5-FU phosphorylation in the GI mucosa. Teysuno® (S-1) is considered, as a single agent as the standard of care in Japan for the adjuvant treatment of resected gastric cancer and in combination with cisplatin in the advanced setting based on level 1 evidence in Phase III trials. S-1 is now widely available and has been approved in European countries with trade name Teysuno® as a first-line treatment for AGC. S-1 is generally well tolerated with a low toxicity profile. It is a novel agent that provides a convenient and safe peroral advantage over intravenous fluoropyrimidine in AGC., Tomáš Šálek, and Literatura
Tak ako orgánovovaskulárne artériové ischemické choroby (srdcovocievne, cievnocievne, nervovocievne, končatinovocievne, obličkovocievne, pohlavnocievne, pľúcnocievne, črevnocievne, kostnokĺbovosvalovocievne, kožnocievne, očnocievne, ušnocievne, zubnocievne a ďalšie orgánovocievne artériové choroby) aj aortové choroby prispievajú k širokému spektru artériových chorôb: aneuryzmy aorty, akútne aortové syndrómy vrátane aortovej disekcie, intramurálneho hematómu, penetrujúcej aterosklerotickej ulcerácie, ďalej traumatické poškodenie aorty, pseudoaneuryzma, ruptúra aorty, ateroskleróza, vaskulitídy, ako aj genetické choroby (napr. Turnerov syndróm, Marfanov syndróm, Ehlersov‑Danlosov syndróm) a kongenitálne abnormality vrátane koarktácie aorty. Podobne ako iné artériové choroby, aj aortové choroby môžu byť diagnostikované po dlhom časovom období subklinického vývinu alebo sa manifestujú akútne. Akútny aortový syndróm je často prvým znakom choroby, ktorá vyžaduje rýchlu diagnózu, rýchle rozhodnutie a rýchlu akciu k zníženiu extrémne nepriaznivej prognózy. V dokumente sa analyzujú kľúčové klinicko‑etiologicko‑anatomicko‑patofyziologické diagnostické aspekty, klasifikácia a princípy manažmentu aortových chorôb (projekt CIEVY)., In addition to organovascular arterial ischemic diseases (cardiovascular, angiovascular, neurovascular, limbovascular, renovascular, genitovascular, bronchopulmonarovascular, mesenteriointestinokolonovascular, osteoarthromusculovascular, dermovascular, oculovascular, otovascular, stomatovascular, etc.), aortic diseases contribute to the wide spectrum of arterial diseases: aortic aneurysms (AA), acute aortic syndromes (AAS) including aortic dissection (AD), intramural hematoma (IMH), penetrating atherosclerotic ulcer (PAU) and traumatic aortic injury (TAI), pseudoaneurysm, aortic rupture, atherosclerosis, vasculitis as well as genetic diseases (e. g. Turner syndrome, Marfan syndrome, Ehlers‑Danlos syndrome) and congenital abnormalities including coarctation of the aorta (CoA). Similarly to other arterial diseases, aortic diseases may be diagnosed after a long period of subclinical development or they may have an acute presentation. Acute aortic syndrome is often the first sign of the disease, which needs rapid diagnosis and decision making to overcome the extremely poor prognosis. Key clinical‑etiology‑anatomy‑pathophysiology (CEAP) diagnostic aspects and principles of aortic disease management are discussed in this document (the Vessels project)., and Gavorník P., Dukát A., Gašpar Ľ., Medová D., Čaprnda M.
Úvod: Cieľom štúdie bolo analyzovať výsledky činnosti transplantačného centra v Košiciach. Metódy: Do transplantačného programu boli zaradení pacienti v kritickom štádiu obličkového zlyhávania. Na transplantáciu obličky bolo indikovaných 457 pacientov. Z metodík bola použitá plastika tepny, našitie tepny samostatne a našitie na spoločnom terčíku. Transplantácia (Tx) obličky vyžaduje predovšetkým techniku cievnej anastomózy - chirurgického spojenia ciev. Výsledky: Transplantácie obličiek sa v Transplantačnom centre Košice realizujú od roku 1988. Plastiku tepny sme vykonali u 22,3 % (102) pacientov. Z toho tepny našité samostatne boli u 5,5 % (25). Na spoločnom terčíku ich bolo 9,4 % (43). V 7,4 % (34) bola plastika realizovaná ako implantácia pólových renálnych artérií do hlavného kmeňa. Záver: Transplantácia obličiek je život zachraňujúca metóda., Introduction: The aim of the study was to analyze own results from Transplant Center Kosice, Slovak Republic. Methods: In total 457 patients in the end-stage renal failure were included to the kidney transplant program. Following techniques were used: arterioplasty, individual renal artery anastomosis and multiple renal arteries anastomosed on a common patch. The kidney transplant (Tx) especially requires surgical technique of a vascular anastomosis. Results: Renal transplantation has been established in Transplant Center Kosice since 1988. The arterioplasty of renal artery was performed in 102 (22.3%) and individual artery anastomosis in 25 (5.5%) patients. Multiple artery anastomosis on the patch was done in 43 (9.4%) and implantation of pole renal arteries to the main trunk performed in 34 (7.4%) cases. Conclusion: Renal transplantation is a lifesaving method in end stage renal failure., and P. Zavacký, Ľ. Beňa, M. Zavacká, M. Frankovičová
On the occasion of 80th birthday of an excellent Slovak philosopher Pavel Cmorej, some characteristic features of his work are presented. Cmorej is shown as a solid thinker who always took care of precisely expressing his thoughts. One of his remarkable works is a collection of his philosophical dialogues (published in 2007) where Cmorej’s analysis of various philosophical problems demonstrates his ability to develop analytic philosophy so that (the desirable) English translations of his works would certainly surprise his contemporary world analytic philosophers. and Pavel Materna