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Agnieszka Dąbrowska

Abstract

In the years 2004-2006, 37 F. rubra L. ecotypes and 35 F. nigrescens Lam. ecotypes were evaluated for their main lawn traits: the general aspect of the plant, slow re-growth, overwintering, winter greenness, leaf fineness and disease resistance. The lawn properties of the ecotypes were assessed with the use of the IHAR 9-grade scale of the visual quality classification system. The study individuals were compared with the model varieties: F. rubra ‘Areta’ and F. nigrescens ‘Nimba’. The ecotypes originated from natural localities in the Lublin region. The experiment was conducted using the method of randomly chosen blocks in three repetitions. One repetition contained six plants of one ecotype grown at a distance of 75 × 30 cm. The aim of the study was to analyze the variability of lawn traits in the examined F. rubra and F. nigrescens ecotypes and to estimate the suitability of the selected material for the breeding of new lawn varieties. Analyses indicated that most of the ecotypes that grow in natural localities in the Lublin region display high-grade lawn traits. This confirms the great suitability of the wild plants for further breeding. Ecotypes of both species obtained high scores comparable with model varieties for their disease resistance, leaf fineness and winter greenness, and also for general aspect and slow re-growth.

Open access

Agnieszka Dąbrowska

ABSTRACT

The decorative value of 24 fescue (Festuca trachyphylla) ecotypes from natural habitats in the Lublin region was assessed in the years 2004-2011. Plants with desirable ornamental characteristics were selected and the cuttings were planted in experimental plots in the Maria Curie-Skłodowska University Botanical Garden in Lublin, where they grew in uniform habitat conditions. During the study years, 18 morphological traits that determine the decorative value of grasses were analysed; 11 quantitative traits (length and number of the culm, length of the panicle, number of spikelets in the panicle, number of vegetative stems, length, width and thickness of the leaf blade, length and width of the cauline leaf and diameter of the tuft) and seven qualitative traits (plant growth habit, greenness index of the leaf blade [SPAD], winter greenness, culm colour, waxy coating on the leaf blade, flowering periods and plant condition after 8 years). The analysis of quantitative and qualitative traits demonstrated that F. trachyphylla is a morphologically variable species. The variability is mainly manifested in the inflorescence morphology, length of the leaf blades and number of culms, which have been statistically corroborated by the results of the ANOVA analysis. A considerable degree of variability was also exhibited by plant habit, colour of leaves and culm, wax deposits on the leaves and flowering period. The high morphological variability of this species allowed for the selection of two interesting types among the plant individuals studied, which were characterised by desirable decorative traits. The most decorative features of the selected ecotypes include the shape and colour of the leaves and the plant habit.

Open access

Agnieszka Dąbrowska, Krystyna Piotrowska-Weryszko, Elżbieta Weryszko-Chmielewska and Ryszard Sawicki

Abstract

All lindens provide Apidae insects with nectar, pollen, and honeydew. Lindens are important melliferous trees in Poland. The first purpose of the study was to carry out phenological observations of the flowering in ten linden taxa. The second aim was to analyse the content of linden pollen grains in the air of Lublin. A correlation between the parameters of the pollen season and meteorological factors was also determined. This study was conducted in the city of Lublin located in the central-eastern part of Poland. The flowering phenophases were analysed, using the method developed by Łukasiewicz, during the growing seasons of 2012-2015. Aerobiological monitoring, which was based on the volumetric method, was carried out over the 2001-2014 time period. As shown in the study, the flowering period of all the analysed linden taxa lasted 7 weeks, on average, from June 7 to July 24. The average length of the flowering period of the investigated taxa and hybrids was in the range of 12-17 days. Their flowering periods overlapped. The atmospheric pollen season lasted, on average, from mid-June to the second 10-day period of July. The highest concentration of airborne pollen was noted at the end of June. The pollen season pattern was significantly affected by temperature and relative air humidity as well as by rainfall in May and June. The investigations indicate a 9-day acceleration of the pollen season, which may be associated with global warming.

Open access

Agnieszka Narloch and Wioletta Mędrzycka-Dąbrowska

Abstract

Introduction. Cardiovascular diseases are the leading cause of premature death in Europe. In Poland, the percentage mortality is 2, 5 times higher than in Western European countries.

Aim. To assess patients' knowledge of the need for diet and physical activity after cardiac surgery. Material and methods. The study involved a group of 150 patients after cardiac surgery. The research was conducted at the Department of Cardiac and Vascular Surgery, University Clinical Centre in Gdansk. The study used a questionnaire of our own design.

Results. Over half of the respondents stated that they had an average amount of knowledge with regard to healthy eating, while one in four had a less than average level of knowledge, and 16% opined that they had a superior knowledge of the same. These results are dependent on age and degree of formal education, and to adherence to dietary recommendations of gender, to financial situation and marital status. With regard to average dietary adherence, more women than men properly identified products harmful to human health. These last results bore little correlation to place of residence or degree of formal education. In addition, slightly more than half of the respondents (55.3%) practiced some sort of physical activity, but up 44.7% does not do any. More active were women and younger people (of both sexes), and those with higher degrees of formal education.

Conclusions. Knowledge of patients with regard to diet after cardiac surgery is dependent on age and degree of formal education, and to adherence to dietary recommendations of gender, to financial situation and marital status. However, formal education and place of residence does not have a significant impact on the level of knowledge of products that are harmful to human health and behavior. Both sex, place of residence and degree of formal education have an impact on level of physical activity in general, as well as on its individual manifestations. More active are women, younger people and those with higher formal education.

Open access

Sebastian Koryciak, Agnieszka Dąbrowska-Boruch and Kazimierz Wiatr

Abstract

Many algorithms are used in JPEG standard for compression of still images, but the most demanding one is the DCT. The fast discrete cosine transform is the basic transform which occur in most coding algorithms. In the case of images it is performed on 8×8 pixel blocks. Paper presents comparison of IDCT algorithms concentrated on amount of arithmetic operations, multiplications, and number of pipelined steps. Results are achieved by implementing each one in programmable device FPGA (xc6vlx240t).

Open access

Tatiana Poliszczuk, Dmytro Poliszczuk, Agnieszka Da̧browska-Perzyna and Monika Johne

Abstract

Introduction. The issue of asymmetry is becoming more and more widespread, causing considerable difficulties for sportspersons. The aim of this study was to assess dynamic asymmetry of complex reaction time in female épée fencers from different sports classes. Material and methods. Study participants comprised 45 female fencers divided into 3 groups. The RT-S5 test of the Vienna Test System was used to record reaction time and motor time in response to visual and audiovisual stimuli. Conclusions. The study found differences in complex reaction time between fencers of different sports classes. Champion-class fencers showed a very high dynamic asymmetry. Considerable differences in complex reaction time were found depending on the type of stimulus involved.

Open access

Sebastian Koryciak, Maciej Barszczowski, Agnieszka Dąbrowska-Boruch and Kazimierz Wiatr

Abstract

In this paper an implementation of the module responsible for the control of micro-mirror array for later use in projection is described. Existing technologies allow for projections of medical images in Digital Imaging and Communications in Medicine format only in the form of a flat 2D image. The 3D Visualizer will allow to display medical images in three dimensions using its own projection surface. The matrix controlling device has been largely developed on the basis of reverse engineering studies carried out on the functional system based on a driver from Texas Instruments. Driver is built on the FPGA with implemented soft processor from Xilinx - MicroBlaze.