Wyniki wyszukiwania - Biblioteka Nauki

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Dziedzictwo elementów osadnictwa rolniczego wobec obecnych zmian obszarów wiejskich w Polsce

100%

Kozlowski L. , Tkocz J.

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tom 30.2

2

Rola enzymow proteolitycznych w progresji nowotworow skory i powstawaniu przerzutow

100%

Kozlowski L. , Wojtukiewicz M. Z.

Postępy Higieny i Medycyny Doświadczalnej

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1999

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tom 53

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nr 6

841-854

3

Kardiotoksycznosc antracyklin

80%

Wojtukiewicz M. Z. , Omyla J. , Kozlowski L. , Szynaka B.

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tom 54

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nr 4

467-485

4

Interleukin-8 serum levels in patients with melanoma

80%

Kozlowski L. , Zakrzewska I. , Wojtukiewicz M.

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nr Supplement 1

5

Influence of coastal upwelling on chlorophyll a concentration in the surface water along the Polish coast of the Baltic Sea

80%

Krezel A. , Szymanek L. , Kozlowski L. , Szymelfenig M.

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tom 47

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nr 4

EN

Space-time variations in chlorophyll a (Chl a) concentrations in the surface water of upwelling regions along the Polish coast of the Baltic Sea were analysed. Carried out between 1998 and 2002 in the warmer season (from April till October), the measurements were targeted mainly at the Hel upwelling. Satellite-derived sea surface temperature (AVHRR) and Chl a data (SeaWiFS) were used. Generally speaking, the Chl a concentration increased in the upwelling plume, except along the Hel Peninsula, where two scenarios took place: a reduction in Chl a concentration in spring and an increase in autumn.

6

Water optical properties during upwelling events along the Hel Peninsula [the Baltic Sea]

70%

Matciak M. , Kaluzny M. , Gromisz S. , Kozlowski L. , Szymelfenig M.

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2005

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tom 34

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nr Suppl.2

7

Increased serum level of membrane type 1-matrix metalloproteinase [MT1-MMP-MMP-14] in patients with breast cancer

61%

Laudanski P. , Swiatecka J. , Kozlowski L. , Lesniewska M. , Wojtukiewicz M. , Wolczynski S.

Folia Histochemica et Cytobiologica

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2010

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tom 48

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nr 1

101-103

8

Low-noise infrared and visible focal plane arrays

61%

Kozlowski L. , Vural K. , Luo J. , Tomasini A. , Liu T. , Kleinhans W. E.

Opto-Electronics Review

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1999

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tom Vol. 7, No. 4

259-269

EN

While charge-coupled device ( CCD ) technology is often perceived to provide nearly optimum signal multiplexing and very low imager noise, coupling high performance detectors ( at cutoff wavelengths from 0.6 žmto 17 um ) to CMOS multiplexers provides lower (<10 e-) read noise at high data rates using several pixel amplifier schemes. This superiority is fundamental and has been validated on infrared and visible focal plane arrays. Thus the robust pixel-based signal amplification facilitated by sub-micron CMOS is stimulating low-noise focal plane array (FPA) development for discriminating applications including infrared astronomy, wavefront sensing, spectroscopy, and spaceborne images. Enabled by Moore's Law and concomitant increases in integration density, commercial imagers for consumer video are also providing very low read noise and high sensitivity. Hence we report the ability to usefully detect quanta at non-cryogenic operating temperatures because read noise is at the single-electron level at high video rates. While such advances are typically first demonstrated on infrared sensors, the enhancements migrate to visible devices as soon as the available lithography of the prevailing silicon CMOS technology permits, because visible imager pixels are necessarily much smaller to match the optical blur.

9

Algorithm for the remote sensing of the Baltic ecosystem (DESAMBEM). Part 1: Mathematical apparatus

51%

Wozniak B. , Krezel A. , Darecki M. , Wozniak S. B. , Majchrowski R. , Ostrowska M. , Kozlowski L. , Ficek D. , Olszewski J. , Dera J.

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nr 4

451-508

EN

This article is the first of two papers on the remote sensing methods of monitoring the Baltic ecosystem, developed by our team. Earlier, we had produced a series of detailed mathematical models and statistical regularities describing the transport of solar radiation in the atmosphere-sea system, the absorption of this radiation in the water and its utilisation in a variety of processes, most importantly in the photosynthesis occurring in phytoplankton cells, as a source of energy for the functioning of marine ecosystems. The comprehensive DESAMBEM algorithm, presented in this paper, is a synthesis of these models and regularities. This algorithm enables the abiotic properties of the environment as well as the state and the functioning of the Baltic ecosystem to be assessed on the basis of available satellite data. It can be used to determine a good number of these properties: the sea surface temperature, the natural irradiance of the sea surface, the spectral and spatial distributions of solar radiation energy in the water, the surface concentrations and vertical distributions of chlorophyll a and other phytoplankton pigments in this sea, the radiation energy absorbed by phytoplankton, the quantum efficiency of photosynthesis and the primary production of organic matter. On the basis of these directly determined properties, other characteristics of processes taking place in the Baltic ecosystem can be estimated indirectly. Part 1 of this series of articles deals with the detailed mathematical apparatus of the DESAMBEM algorithm. Part 2 will discuss its practical applicability in the satellite monitoring of the sea and will provide an assessment of the accuracy of such remote sensing methods in the monitoring of the Baltic ecosystem (see Darecki et al. 2008 – this issue).

10

Clinicopathological significance of Epo, EpoR, Ki-67 and Bax expression in colorectal cancer

51%

Lopmerta K. , Grudzinska M. , Jakubowska K. , Samocik P. , Kozlowski L. , Fudala A. , Wincewicz A. , Koda M.

Progress in Health Sciences

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2018

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tom 8(2)

112-117

EN

Introduction: Expression of Epo, a glycoprotein secreted by the fetal liver and the adult kidney in response to cellular hypoxia and its receptor have been described in human solid tumors, such as colon and breast cancer. Purpose: Since activation of Epo-EpoR signaling pathway in erythroid progenitor and precursor cells leads to promotion of proliferation and differentiation or prevention of programmed cell death through Bcl-xl and Bcl-2 it was of interest to investigate expression of Epo, EpoR, apoptosis regulator – Bax and marker of proliferating cells - Ki-67 and assess correlation between them, with regard to clinicopathological variables of colorectal cancer. Materials and methods: The correlations between expression of Epo, EpoR, Bax and Ki-67 in colorectal cancer were analyzed in regard to patient age, sex, primary localization, histopathological type, grading, staging and lymph node invasion. Statistical analyses were performed by using the Spearman rank correlation test applying a significance level of p<0,05. Results: Correlation between Bax and EpoR is positive and statistically significant at all groups of patients except group pT1+pT2. Positive correlation between Bax and Epo is statistically significant at following groups of patients: all patients, age  60, age >60, male, female , primary localization in rectum, primary localization in colon, adenocarcinoma, G2, G3. Statistical analysis revealed no significant correlations between expression of neither Ki-67 with Epo nor Ki-67 with EpoR in all groups of patients. Conclusions: Epo seems to be a pleiotropic cytokine, which can exert its biological effect on several cell types, including neoplastic cells. The effect of Epo-EpoR signaling can differ in various cells and conditions.

11

Loss of heterozygosity [LOH] - implications for human genetic identification

51%

Pepinski W. , Soltyszewski I. , Skawronska M. , Rogowski M. , Zalewska R. , Kozlowski L. , Filipowski T. , Janica J.

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nr 1

105-110