The simple analysis method of nonlinear frequency distortions in FMCW radar, Journal of Telecommunications and Information Technology, 2001, nr 4

The paper presents a simple method for estimating nonlinear frequency distortions of linear frequency modulated (LFM) signals used in FMCW radars. This method, derived from the polynomial model of the nonlinear FM signal phase, is based on finding the maximum of two-dimensional chirp-like transform of the IF video signal. The IF signal is obtained by mixing transmitted FM signal with its delayed copy. Using suggested transform we show that the presented method is able to detect and classify signal distortions

La protection du patrimoine écrit, miroir de l’histoire polonaise au XIXe siècle

Comment un pays privé de son indépendance peut-il préserver ses archives et affirmer sa conscience nationale ? Le cas de la Pologne démontre que des initiatives privées ont su remplacer les institutions de l’État pour protéger le patrimoine polonais et que la nation a pu s’affirmer en dehors des structures étatiques, et souvent contre elles.How can a country deprived of its independence preserve its archives and assert its national consciousness? The case of Poland shows how civic initiatives could replace state institutions in the protection of the country’s heritage, and how the nation was able to assert itself outside, and frequently in opposition to state structures

Stare i nowe w wiktoriańskiej opowieści o duchach

Zadanie pt. „Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki” nr 885/P-DUN/2014 dofinansowane zostało ze środków MNiSW w ramach działalności upowszechniającej nauk

Jahresbericht des K.K. Rudolf-Gymnasiums in Brody / Beiträge zu einem Studium des Lustspieldichters Franciszek Zabłocki

Bronislaus v. Nałecz Kasinowsk

Involvement of OCTN2 and B<SUP>0,+</SUP> in the transport of carnitine through an in vitro model of the blood-brain barrier

International audienceCarnitine is known to accumulate in brain, therefore transport of carnitine through the blood-brain barrier was studied in an in vitro system using bovine brain capillary endothelial cells (BBCEC) grown on filter inserts in a co-culture system with glial cells. Long-term exposure of BBCEC to carnitine resulted in a high accumulation of long-chain acyl carnitines, which decreased dramatically upon removal of carnitine. Kinetic analysis of carnitine accumulation indicated a possibility of functioning as more than one transporter. BBCEC were incubated in the presence of substrates and inhibitors of known carnitine transporters added from either apical or basolateral side. Inhibition by replacement of sodium and expression of OCTN2 (RT-PCR) were in agreement with Kido et al. (J. Neurochem. 2001, 79, 959–969) on the functioning of OCTN2 in apical membrane. For the first time, functioning of OCTN2 was demonstrated in the basolateral membrane, as well as functioning in both membranes of a low affinity carnitine transporter B0,+. Expression of B0,+ in BBCEC was confirmed by RT-PCR. These results suggest that OCTN2 and B0,+ could be involved in carnitine transport in both the apical and basolateral membrane

Evaluation of questionnaire as an instrument to measure the level of nutritional and weight gain knowledge in pregnant women in Poland. A pilot study.

Pregnancy is a period in life in which women are willing to improve their lifestyle. Providing proper information for these women is crucial for their health and the health of their offspring. Clear information about weak points in their nutritional and weight gain knowledge is the first step for proper health care assistance. There are a few previous studies evaluating the nutritional and weight gain knowledge of pregnant women. In the few studies available, different approaches were taken and there was no wider discussion on the content of the questionnaires attempting to measure level of knowledge. The aim of this study, designed in a pilot fashion, was to test the adequacy of the questionnaire as a research instrument in a group of 139 pregnant Polish women. The developed instrument is a 33-item questionnaire comprising four domains: weight gain, importance of nutrients, quality and quantity of food intake. The results of this study indicate that the questionnaire is stable and internal consistency is acceptable (Cronbach's alpha > 0.7) for dimensions with more than four items. For dimensions with less than four items, internal consistency was poor (Cronbach's alpha < 0.7). The cumulative explained variance for domains weight gain, importance of nutrients, quantity and quality of food intake was 54.74%, 42.74%, 54.42% and 48.99% respectively. Results from validity, reliability and factor analysis indicate that the questionnaire is adequate for its purpose