Search Results - "Pikul Piotr"

Backward Extensions of Weighted Shifts on Directed Trees by Pikul, Piotr

“…The weighted shifts are long known and form an important class of operators. One of generalisations of this class are weighted shifts on directed trees, where…”
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Role of L-lactate as an energy substrate in primary rat podocytes under physiological and glucose deprivation conditions by Szrejder, Maria, Typiak, Marlena, Pikul, Piotr, Audzeyenka, Irena, Rachubik, Patrycja, Rogacka, Dorota, Narajczyk, Magdalena, Piwkowska, Agnieszka

“…Lactate has long been acknowledged to be a metabolic waste product, but it has more recently been found as a fuel energy source in mammalian cells. Podocytes…”
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Neither Excessive Nitric Oxide Accumulation nor Acute Hyperglycemia Affects the N -Acetylaspartate Network in Wistar Rat Brain Cells by Zyśk, Marlena, Pikul, Piotr, Kowalski, Robert, Lewandowski, Krzysztof, Sakowicz-Burkiewicz, Monika, Pawełczyk, Tadeusz

“…The -acetylaspartate network begins in neurons with -acetylaspartate production catalyzed by aspartate -acetyltransferase from acetyl-CoA and aspartate…”
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The Impact of Acetyl-CoA and Aspartate Shortages on the N-Acetylaspartate Level in Different Models of Cholinergic Neurons by Zyśk, Marlena, Sakowicz-Burkiewicz, Monika, Pikul, Piotr, Kowalski, Robert, Michno, Anna, Pawełczyk, Tadeusz

“…N-acetylaspartate is produced by neuronal aspartate N-acetyltransferase (NAT8L) from acetyl-CoA and aspartate. In cholinergic neurons, acetyl-CoA is also…”
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The cAMP Inducers Modify N -Acetylaspartate Metabolism in Wistar Rat Brain by Kowalski, Robert, Pikul, Piotr, Lewandowski, Krzysztof, Sakowicz-Burkiewicz, Monika, Pawełczyk, Tadeusz, Zyśk, Marlena

“…Neuronal -acetylaspartate production appears in the presence of aspartate -acetyltransferase (NAT8L) and binds acetyl groups from acetyl-CoA with aspartic…”
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Application and Validation of Simple Isocratic HPLC-UV-DAD Method with Dual Wavelength Detection for Ivabradine Determination and Its Application in the Study of Stress Degradation by Ciura, Krzesimir, Marszałł, Marcin, Pikul, Piotr, Nowakowska, Joanna

“…Ivabradine is a modern drug that selectively lowers the heart rate, improves cardiac energy balance, and reduces heart’s demands for oxygen and energy. Due to…”
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Joint backward extension property for weighted shifts on directed trees by Pikul, Piotr

“…Weighted shifts on directed trees are a decade-old generalisation of classical shift operators in the sequence space ℓ2. In this paper we introduce the joint…”
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A simple TLC and HPTLC method for separation of selected steroid drugs by Nowakowska Joanna, Pikul Piotr, Ciura Krzesimir, Piotrowicz Jakub

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Insights into the regulation of podocyte and glomerular function by lactate and its metabolic sensor G‐protein‐coupled receptor 81 by Grochowalska, Klaudia, Pikul, Piotr, Piwkowska, Agnieszka

“…Podocytes and their foot processes are an important cellular layer of the renal filtration barrier that is involved in regulating glomerular permeability…”
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Weighted shifts on directed forests and hyponormality by Pikul, Piotr

“…In a paper from 2012 Jab{\l}o\'nski, Jung and Stochel introduced the weighted shifts on directed trees, a generalisation of well known weighted shift operators…”
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THERMODYNAMIC STUDY OF THERMAL DECOMPOSITION OF RANITIDINE BY HPTLC by Nowakowska, Joanna, Pikul, Piotr

“…A thin-layer chromatography (TLC) technique was used to separate the thermal decomposition product of ranitidine hydrochloride. Three samples of standard were…”
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Joint backward extension property for weighted shifts on directed trees by Pikul, Piotr

“…Weighted shifts on directed trees are a decade old generalisation of classical shift operators in the sequence space $\ell^2$. In this paper we introduce the…”
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Chromatographic analysis of ivabradine on polar, nonpolar and chemically modified adsorbents by HPTLC by Pikul, Piotr, Nowakowska, Joanna, Ciura, Krzesimir

“…Thin-layer chromatography (TLC) was used to evaluate the behavior of ivabradine in various chromatographic systems. The mobile phases used were aqueous…”
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Insufficient harmonization of antibiotics assays – Polish experience with an external quality assessment program in the years 2011–2018 by Kowalski, Robert, Ćwiklińska, Agnieszka, Lizakowski, Marcin, Kortas-Stempak, Barbara, Bednarczuk, Gabriela, Fijałkowska, Aleksandra, Pikul, Piotr, Lewandowski, Krzysztof

“…Treatment with vancomycin and gentamycin requires strict monitoring of its serum concentration for proper dosage optimization. This study aimed to assess the…”
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EFFECT OF NON-AQUEOUS AND BUFFERED MOBILE-PHASE COMPOSITION ON THE RETENTION OF IVABRADINE by Pikul, Piotr, Nowakowska, Joanna, Ciura, Krzesimir

“…□ The chromatographic behavior of ivabradine have been examined using Kieselgel 60 F 254 , 60 W F 254S , and RP-18 W F 254S high performance thin layer…”
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Backward extensions of weighted shifts on directed trees by Pikul, Piotr

“…The weighted shifts are long known and important class of operators. One of known generalisation of this class are weighted shifts on directed trees, where we…”
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Locally ordered topological spaces by Pikul, Piotr

“…REPORTS ON MATHEMATICAL LOGIC 55 (2020), 113-141 While topology given by a linear order has been extensively studied, this cannot be said about the case when…”
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A comparative quantitative structure-retention relationships study for lipophilicity determination of compounds with a phenanthrene skeleton on cyano-, reversed phase-, and normal phase-thin layer chromatography stationary phases by Ciura, Krzesimir, Nowakowska, Joanna, Pikul, Piotr, Struck-Lewicka, Wiktoria, Markuszewski, Michał J

“…The phenanthrene skeleton is an important moiety in medical chemistry as it is present in steroidal drugs used as anti-inflammatory and anti-asthmatic agents…”
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Forced Degradation Studies of Ivabradine and In Silico Toxicology Predictions for Its New Designated Impurities by Pikul, Piotr, Jamrógiewicz, Marzena, Nowakowska, Joanna, Hewelt-Belka, Weronika, Ciura, Krzesimir

“…All activities should aim to eliminate genotoxic impurities and/or protect the API against degradation. There is a necessity to monitor impurities from all…”
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The Sz\'asz inequality for matrix polynomials and functional calculus by Pikul, Piotr, Szymański, Oskar Jakub, Wojtylak, Michał

“…The Sz\'asz inequality is a classical result providing a bound for polynomials with zeros in the upper half of the complex plane in terms of its low-order…”
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