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Search Results: 1 - 10 of 1110 matches for " Grzegorz Borowik "
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Statechart-based Controllers Synthesis in FPGA Structures with Embedded Array Blocks
Grzegorz abiak , Grzegorz Borowik
International Journal of Electronics and Telecommunications , 2010, DOI: 10.2478/v10177-010-0002-7
Abstract: Statechart diagrams, in general, are visual formalism for description of complex systems behaiour. Digital controllers, which act as reactive systems, can be very conveniently modeled with statecharts and efficiently synthesized in modern programmable devices. The paper presents in details syntax and semantics of statecharts and new implementation scheme. The issue of statecharts synthesis is not still ultimately solved. Main feature of the presented approach is the transformation of statechart diagrams into Finite State Machine, and through KISS format, functional decomposition and mapping into Embedded Memory Blocks. Embedded Memory are part of the modern programmable devices.
TRACES OF MEMORY. PRELIMINARY REMARKS ON IDENTITY AND BIOGRAPHY OF CRIMEAN TATARS
Irena Borowik
Studia Humanistyczne (Kraków. 2003) , 2011,
Abstract: The article is devoted to the preliminary analysis of biographical interviews, taken with representatives of Crimean Tatars returning to Crimean Peninsula and settling in the places that they or their ancestors used to live before deportation. The research was conducted in summer of 2008 and 2009, 20 interviews were taken with consideration of age, sex, place of living and level of education. Traces of memory are understood in this article as repeatable elements of biographical narratives. By this virtue those repeated elements refer not only to individual identity but they also build collective identity, more precisely national in this case. The key element of the article is the third part of it where relations between memory and identity are explored in collected biographies. As it appeared in all life-stories deportation from Crimea and return after years are crucial elements of construction of biographies and in all cases it has a form of trajectories. The general conclusion is that memory of these painful events and celebration of it is functional for building the strong collective identity which is based on traditional values, religious and political integration of national minority.
An algorithm of combining of advancing front and delaunay triangulation to 3-D domain tesselation
Jan Kucwaj, Barbara Borowik
Annales UMCS, Informatica , 2009, DOI: 10.2478/v10065-009-0002-3
Abstract: The paper presents an algorithm of volume meshing by using the Advancing Front Technique (AFT) combined with the Delaunay Triangulation. The tetrahedronization starts with the surface mesh with the elements oriented towards the interior 3-D domain. The main idea is based upon AFT, with simultaneous points insertion and tetrahedra creation. The characteristic feature of the approach is the part of AFT in the case, when a new calculated point on the current face of the front is not accepted then the existing point in the front is found to create a new tetrahedron by using the Delaunay triangulation on the given set of points. Additionally the algorithm takes a mesh size function into account.
New Method for Measurement of Plant Roots Specific Surface  [PDF]
Grzegorz , Jozefaciuk, Malgorzata Lukowska
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.45135
Abstract:

To provide enough space to carry all surface charges responsible for high cation exchange capacity of plant roots, large area of the root specific surface is necessary, however all experimental methods used up to date give too small surface area values. In this paper, we propose to measure the plant roots surface area using water vapor adsorption isotherm. This method gives roots specific surface areas compatible to CEC. Methodical aspects of the measurements are described along with theoretical background for calculating specific surface area on the example of roots of barley grown in nutrient solution.

Decentralization of a Multi Data Source Distributed Processing System Using a Distributed Hash Table  [PDF]
Grzegorz Chmaj, Shahram Latifi
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2013, DOI: 10.4236/ijcns.2013.610047
Abstract: A distributed processing system (DPS) contains many autonomous nodes, which contribute their own computing power. DPS is considered a unified logical structure, operating in a distributed manner; the processing tasks are divided into fragments and assigned to various nodes for processing. That type of operation requires and involves a great deal of communication. We propose to use the decentralized approach, based on a distributed hash table, to reduce the communication overhead and remove the server unit, thus avoiding having a single point of failure in the system. This paper proposes a mathematical model and algorithms that are implemented in a dedicated experimental system. Using the decentralized approach, this study demonstrates the efficient operation of a decentralized system which results in a reduced energy emission.
Prolonged ventilation post cardiac surgery - tips and pitfalls of the prediction game
Piotr Knapik, Daniel Ciesla, Dawid Borowik, Piotr Czempik, Tomasz Knapik
Journal of Cardiothoracic Surgery , 2011, DOI: 10.1186/1749-8090-6-158
Abstract: We performed a retrospective review of two cohorts of patients in our department in two subsequent time periods (July 2007 - December 2008, n = 2165; January 2009 - July 2010, n = 2192). The study was approved by the Institutional Ethics Committee and the individual patient consent was not required. Patients were divided with regard to ventilation time of more or less than 48 hours. Preoperative and procedure-related variables for prolonged ventilation were identified and multivariate logistic regression analysis was performed separately for each cohort.Most recent patients were older, with more co-morbidities, more frequently undergoing off-pump surgery. At the beginning of 2009 we also changed the technique of postoperative ventilation. Percentage of patients with prolonged ventilation decreased from 5.7% to 2.4% (p < 0.0001).Preoperative and procedure-related variables for prolonged ventilation were identified. Prediction models for prolonged ventilation were different for each cohort. Most recent significant predictors were: aortic aneurysm surgery (OR 12.9), emergency surgery (OR 5.3), combined procedures (OR 5.1), valve procedures (OR 3.2), preoperative renal dysfunction (OR 2.9) and preoperative stroke or TIA (OR 2.8).Prediction models for postoperative ventilation should be regularly updated, particularly when major changes are noted in patients' demographics and surgical or anaesthetic technique.Patients whose ventilation after cardiac surgery is unexpectedly prolonged are prone to a larger number of complications and higher mortality [1]. Additionally, they may present a practical problem for the regular activity of the postoperative intensive care unit.In the simplest terms, it can be assumed that up to a certain time limit (usually covering a period of 12-24 hours), the duration of mechanical ventilation may depend on unique characteristics, the type of surgical procedure and local protocols within the individual postoperative ICU. In some ICUs, patients
Can drugs used in type 2 diabetes therapy induce acute pancreatitis?
Anna Borowik,Antoni Hrycek,Jerzy Chudek,Magdalena Olszanecka-Glinianowicz
Post?py Higieny i Medycyny Do?wiadczalnej , 2011,
Abstract: The increased number of subjects with type 2 diabetes and putting into clinical practice further new hypoglycemic agents and also aspiring to achieve the bettest glycemic control using a few medications may cause that undesirable actions of these agents may be observed more frequently. One undesirable effect of hypoglycemic drugs is acute pancreatitis; therefore the aim of the present paper is to review data concerning the development of this complication during type 2 diabetes pharmacotherapy.
Periodic solutions for nonautonomous differential equations and inclusions in tubes
Grzegorz Gabor
Abstract and Applied Analysis , 2004, DOI: 10.1155/s1085337504403042
Abstract: We study the existence of periodic trajectories for nonautonomous differential equations and inclusions remaining in a prescribed compact subset of an extended phase space. These sets of constraints are nonconvex right-continuous tubes not satisfying the viability tangential condition on the whole boundary. We find sufficient conditions for existence of viable periodic trajectories studying properties of the exit subset of the tube. A new approximation approach for continuous multivalued maps is presented.
A de Casteljau Algorithm for -Bernstein-Stancu Polynomials
Grzegorz Nowak
Abstract and Applied Analysis , 2011, DOI: 10.1155/2011/609431
Abstract: This paper is concerned with a generalization of the -Bernstein polynomials and Stancu operators, where the function is evaluated at intervals which are in geometric progression. It is shown that these polynomials can be generated by a de Casteljau algorithm, which is a generalization of that relating to the classical case and -Bernstein case.
Novel Insights into the Role of Caveolin-2 in Cell- and Tissue-Specific Signaling and Function
Grzegorz Sowa
Biochemistry Research International , 2011, DOI: 10.1155/2011/809259
Abstract: Caveolin-2 is one of the major protein components of cholesterol- and glycosphingolipid-rich flask-shaped invaginations of plasma membrane caveolae. A new body of evidence suggests that caveolin-2 plays an important, and often more direct, role than caveolin-1 in regulating signaling and function in a cell- and tissue type-specific manner. The purpose of this paper is to primarily focus on discussing how these recent discoveries may help better understand the specific contribution of caveolin-2 to lipid raft- and caveolae-regulated cell/tissue-specific signaling and functions.
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