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Model of the two well potential for Hg-atoms in the Hg1-xCdxTe alloy lattice

100%

Polit J.

2011

tom Vol. 59, nr 3

331-341

The problem of the additional phonon modes (APM) of the far infrared spectra in the range of 100–115 cm-1 for the Hg1-xCdxTe alloys has been discussed for the last forty years. The model of two well potential of the mercury atoms in the Hg1-xCdxTe lattice is proposed for interpretation of these APM. Analysis was performed for samples of different compositions (0.06 < x < 0.7) and different types (nand p-type) of conductivity.

Model of the two well potential for Hg-atoms in the Hg1 - xCdx Te alloy lattice

100%

Polit J.

nr 3

Analiza porównawcza wielkości zasobów obliczonych metodą dynamiczną i objętościową po kilkuletnim okresie eksploatacji, na przykładzie złoża gazu ziemnego „Rysie"

63%

Polit J. , Sieradzki S.

Prace Instytutu Górnictwa Naftowego i Gazownictwa

2000

tom nr 110 wyd. konferencyjne

601--605

Production data plus the geological and reservoir recognition of Rysie reservoir, yielded the information which allowed us to determine the production regime of this reservoir. The gas reserves of Rysie were evaluated with the mass-balance method and later verified using the volumetric method. Results of such comparison indicate that the reserves should be verified every few years using the modern computer-aided methods.

Effect of OA-inhibitor of protein phosphatases PP1 and PP2A - on initiation of DNA replication and mitosis in Vicia faba root meristems

63%

Polit J. , Maszewski J.

nr 3A

According to the principal control point (PCP) hypothesis, experiments with excised, carbohydrate-starved stationary root meristems of Vicia faba var. minor have demonstrated that cells which previously divided asynchronously were preferentially blocked in G1 (PCP1) and G2 (PCP2) phases. When stationary phase meristems are supplied with exogenous carbohydrate (2 % sucrose), the G1- and G2-arrested cells start out DNA replication and mitotic divisions, respectively. The resumption of DNA synthesis and mitosis is not immediate and the delays of Gi - and G2-arrested cells are found different. Using this model, we examined the effects of 4 pulse incubations with okadaic acid (OA), a specific inhibitor of PP1 and PP2A, on the duration of intervals elapsing between the provision of sucrose and the first appearance of S- and M-phase cells. We have found that depending on the period during which OA had been applied, the release from G1 and G2 phase arrest-points becomes prolonged, showing different time-course modifications The obtained data provide evidence that activation of PP1 and PP2A is required to allow the cells for both PCP1→S and PCP2→M transitions in root meristems of V. faba.

A simple method for identification of S phase nuclei in Vicia faba root meristems using BrdUrd labeling and indirect immunofluorescence [comparison with 3H-thymidine incorporation]

63%

Polit J. , Maszewski J.

nr 1

Effects of antheridial peptides derived from Chara on cell cycle-regulated processes in human and yeast cells

51%

Maszewski J. , Maszewska M. , Polit J.

nr 3

Induction of premature mitosis in root meristem cells of Vicia faba and Pisum sativum by various agents is correlated with an increased level of protein phosphorylation

51%

Rybaczek D. , Polit J. , Luchniak P. , Maszewski J.

2002

tom 40

nr 1

Gold Nanoparticles Like A Matrix For Covalent Immobilization Of Cholesterol Oxidase – Application For Biosensing

45%

Wojnarowska R. , Polit J. , Broda D. , Gonchar M. , Sheregii E. M.

nr 3