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Search Results: 1 - 10 of 119 matches for " Bozena BARCZAK "
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Content of macroelements and their ionic ratios in oat grain depending on the sulphur form and dose
Bozena BARCZAK,Krystian NOWAK
Journal of Central European Agriculture , 2013, DOI: 10.5513/jcea01/14.1.1167
Abstract: The research was based on the 2001-03 field experiment set up on Luvisol, of a very good rye soil complex, IIIb soil valuation class. The soil was slightly acidic in reaction, average richness in available forms of phosphorus, potassium and magnesium as well as low richness in the content of sulphates (VI). The research demonstrated that the sulphur fertilisation applied showed, in general, a slight effect on the content and equivalent proportions of macroelements in oat grain. The fertilizers (ammonium sulphate (VI), potassium sulphate (VI) and Wigor S) applied, irrespective of the sulphur form and dose, in some of the research years there was shown a slight decrease as compared with the non-fertilisation treatment, the contents of phosphorus, potassium and calcium. The content of magnesium, especially sulphate sulphur (VI) in oat grain, as affected by fertilizers containing sulphur, in general, gets increased. The elementary sulphur form found in Wigor S made it possible to reach slightly higher contents of phosphorus, calcium and magnesium than its sulphate (VI) form than the one used in a form of K2SO4 and (NH4)2SO4 however, in general, these differences were not significant. Neither were there identified any differences between the effect of the 20 and 40 kg Sha-1 doses on the content of the macroelements.
Journal of Central European Agriculture , 2013, DOI: 10.5513/jcea01/14.1.1201
Abstract: Over 2003-2005 at the Experiment Station at Wierzchucinek at the University of Technology and Life Sciences in Bydgoszcz, there was performed a strict one-factor micro-plot experiment in split-splot design. The factor tested was a type of microelements [n=5: Cu, Zn, Mn, Mo, B]. The microelements were foliar sprayed in a chelated form, as the series of Symfonia fertilizers. The study aimed at comparing the effect of five agricultural-engineering basic microelements on the contents and protein composition of the seeds of Aura cultivar. The fertilization applied, boron and manganese in particular, showed an effect on the increase in the contents of total protein in bean seeds. It also modified the fractional composition of the bean seed protein. There was observed a clear increase in the fraction of albumins and globulins in seeds as a result of the microelements applied, except for boron. The fertilization with molybdenum, boron, copper and zinc reduced the content of glutelins, and the sum of glulelins and prolamines in the bean seeds.
Embracing Empowerment in the Healthcare of the United States  [PDF]
Bozena Padykula, Karen Wexell
Open Journal of Leadership (OJL) , 2013, DOI: 10.4236/ojl.2013.24013

The United States experiences an economic and healthcare crisis that calls for change. Transformational leadership model by Kouzes and Posner (2003) defines traits that are important to embrace by today’s healthcare leaders in promoting organizational change. To promote growth, engaging and empowering all members in the organization opens the door for collaborative work intentionally establishing sustainable healthcare outcomes. Since nurses play a significant role in US and global healthcare systems, healthcare organizations demand empowered nursing leaders that have an equal voice. The significance of this review to the future is to awaken nursing leaders to step away from a dependent mode and to step forward to an empowered mode.

Viscosity iteration in CAT(k) spaces
Bozena Piatek
Mathematics , 2012,
Abstract: We study the approximation of fixed points of nonexpansive mappings in CAT(k) spaces. We show that the iterative sequence generated by the Moudafi's viscosity type algorithm converges to one of the fixed points of the nonexpansive mapping depending on the contraction applied in the algorithm.
The fixed point property and unbounded sets in spaces of negative curvature
Bozena Piatek
Mathematics , 2014,
Abstract: Motivated by the well-known cases of the real Hilbert ball and complete R-trees, being both particular cases of CAT(-1) spaces, we give an affirmative answer to the question of whether the geodesically boundedness property is a necessary and sufficient condition for a closed convex subset K of a complete CAT(k) space, with k < 0, to have the fixed point property for nonexpansive mappings
Poverty in Poland and the United States: A Comparison of Key Characteristics, Composition, and Prospects  [PDF]
Bozena Leven
Modern Economy (ME) , 2016, DOI: 10.4236/me.2016.75057
Abstract: This study provides a comparative approach to assess the state of Polish poverty. To do so, poverty in Poland and the United States is presented in terms of selected general, shared characteristics and particularly vulnerable societal groups. Using official, primarily income based, statistics for Poland and the United States, we conclude that a higher percentage of the overall population in the United States is poor and, relative to median country-specific incomes, that the US poverty is deeper than in Poland. In addition, more children, the elderly, and the disabled are poor in America than in Poland; the breadth of poverty is wider in the United States and, perhaps most importantly, may in some important ways also be more intractable.
Journal of Central European Agriculture , 2009,
Abstract: The research, carried out over 2004-2007, investigated spring barley, Antek cultivar, grown in a strict fi eld experiment. The aim of the present research was to determine the effect of sulfur fertilization on the spring barley grain yield and the most essential yielding components. The fi rst experimental factor represented the sulfur application method (n=2: foliar and soil fertilization), while the second one – by the sulfur form (n=2: ionic and elementary), and the third one – sulfur dose (n=4: in kg S·ha-1: 0, 20, 40 (20+20), 60 (20+20+20)). As demonstrated by the present research, the weather pattern over the vegetation period showed a considerably greater effect on determining spring barley yielding components than the factors considered in the experiment. The differences between the mean values of the number of grains per spike, thousand seed grain and the number of spikes per 1 m2 in extreme years were much greater than respective differences caused by the sulfur activity. The sulfur application method had a signifi cant effect on the number of grain per spike and thousand grain weight. It was shown that the soil application of sulfur generally enhances the values of those components more than the foliar application. The effect of the sulfur form used was signifi cant only in the case of thousand grain weight; its ionic form made it possible to reach higher values of that component than the elementary form. Of all the factors researched in the fi eld experiment, the spring barley grain yield structure components were most affected by the sulfur dose. The application of sulfur, in general, signifi cantly increased the values of the components researched. Based on the analysis of correlation there was noted the strongest relationship between the spring barley grain yield and the spike density. The second strongest effect on the grain yield was demonstrated by the number of grains per spike. Sulfur fertilization did not change clearly the relationship between the yield and its structure components.
Impactos ambientais da mobilidade urbana:cinco categorias de medidas mitigadoras Environmental impacts of urban mobility: five categories of mitigating measures
Rafael Barczak,Fábio Duarte
Urbe : Revista Brasileira de Gest?o Urbana , 2012, DOI: 10.7213/urbe.6027
Abstract: Desde 1970, a emiss o de CO2 no setor industrial cresceu 65% em todo o mundo, contra 120% no de transportes e 80% da energia utilizada para a mobilidade área urbana têm origem na queima de combustíveis fósseis. Assim, a motoriza o da mobilidade urbana é um dos principais emissores de gases de efeito estufa.Para analisar este cenário, este artigo toma como base a produ o científica internacional produzida do Protocolo de Kyoto (1997) à conferência de Copenhague (2008) para levantar quais principais medidas para a redu o do impacto ambiental, especialmente das emiss es de CO2. Argumenta-se aqui que s o cinco os grupos de medidas a partir da discuss o de textos técnicos de órg os internacionais e produ o científica,sendo: econ mico-fiscais e financeiras; regulatórias; informa o e comunica o; planejamento urbano;e tecnológicas.
Waveguide model of the hearing aid earmold system
Grzegorz Szwoch, Bozena Kostek
Diagnostic Pathology , 2006, DOI: 10.1186/1746-1596-1-6
Abstract: In this paper, a computer model adequate for this task is proposed. This model is based on the waveguide modeling method. The waveguide model simulates the propagation of sound waves in the system of cylindrical tubes. Frequency response of the hearing aid receiver is simulated in the model and the influence of the ear canal and the eardrum on the earmold system is taken into account. The model parameters are easily calculated from parameters of a physical hearing aid system. Transfer function of the model is calculated and frequency response plots are obtained using the Matlab system.The frequency response plots of the earmold model were compared to the measurement plots of the corresponding physical earmold systems. The same changes in frequency responses caused by modification of length or diameter of a selected waveguide section, are observed in both measurement data of a real earmold system and in computed model responses.Comparison of model responses obtained for various sets of parameters with measurement data proved that the proposed model accurately simulates the real earmold system and the developed model may be used to construct a computer system assisting the physician who performs earmold system fitting.The number of hearing impaired individuals who need to use hearing aids is rapidly increasing nowadays. Proper tools for optimum hearing aid fitting are needed, allowing physician to choose and tune hearing aid most suitable to the user's needs in a short time. Methods for selecting amplification and compression characteristics in order to compensate hearing loss and improve speech intelligibility are now well developed. However, one aspect of the fitting process that is often underestimated is the design of the earmold system of a hearing aid. In the case of the miniaturized hearing aids (In-The-Ear and In-The-Canal) this problem is of less importance, because the earmold system is very simplified and it does not significantly affect sound quality. Howe
Applying Fourier numerical analysis to determination of tensor elements of the deformations of seed covers
Bozena Gladyszewska,Dariusz Chocyk
Optica Applicata , 2004,
Abstract: A video-extensometry method for studying the mechanical properties of seed covers is presented. Young’s modulus and Poisson’s ratio for the material tested, i.e., seed covers of dried broad beans (Vicia faba) are determined. A microscopic image of thin film gold nets (42 and 162 mm thick) deposited on sample surface was transferred through a camera to computer memory which carried out the analysis of changes occurring in the course of sample tension. Fourier’s numerical analysis was applied to determine tensor elements of deformations of the materials under study. The method is characterized by high measuring accuracy. Another advantage lies in its insensibility to additional boundary effects, which could occur in the vicinity of sample clips.
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