920 research outputs found
Analysis of blood pressure measurement in Czech pharmacies I.
No full textAnalysis of blood pressure measurement in Czech pharmacies I. Author: Jakub Prouza Tutor: Josef Malý1 1 Department of Social and Clinical Pharmacy, Charles University in Prague, Faculty of Pharmacy in Hradec Králové Introduction: Arterial hypertension is one of the most serious health problems of today and its therapy must be approached comprehensively. In addition to medical care, to the improvement of the health status of the patient significantly contribute properly implemented pharmaceutical care and blood pressure measurement in pharmacy. Objectives: The aim of the thesis was to describe and analyse conditions of blood pressure measurement in a sample of Czech pharmacies. Methods: Data were collected via questionnaire survey in 2012 and 2013 in three districts. The survey was conducted using two questionnaires, which were filled at pharmacies with possible help of trained interviewer. The first questionnaire was completed by the authorized employee representative of the pharmacy and included questions characterizing the pharmacy. Furthermore the question whether they provided blood pressure measurement in the pharmacy. If they did, further questions were on the frequency of measurement, instrumentation and space equipment in pharmacy. The second questionnaire was completed by the pharmacy..
German social demokratic architecture in municipal housing in Ústí nad Labem, 1918-1938
No full text5 German social democratic architecture in municipal housing in Ústí nad Labem, 1918-1938 Ing. arch. Pavel Prouza Supervisor: Prof. PhDr. Rostislav Švácha, CSc. Abstract The dissertation addresses the issue of architecture in municipal housing built between the two wars in the town of Ústí nad Labem. From mid-nineteenth century the North Bohemian industrial agglomeration, populated mostly by Germans, experienced unprecedented urban and demographic growth. Thus, between 1919 and 1938, the municipality developed a comprehensive project of approximately one hundred buildings. The thesis identifies relations and balanced proportions between a formal analysis of the individual stages of development and a study of their broader historical context. The method of art-historical analysis is applied, whereby the projects are chronologically classified and their urban, typological and chronological aspects are assayed and assessed. The thesis also focuses on the identity of the author, the architect of German origin Franz J. Arnold. The architecture of the Ústí municipal housing complex was designed as a concretization of the social democratic political programme and of the state housing policy, it carries therefore a contents of political significance. The analysis was performed based on archival studies and field..
Studium temné energie a modifikované gravitace a jejich vliv na kosmologické parametry vesmíru
No full textNázev: Studium temné energie a modifikované gravitace a jejich vliv na kosmologické parametry vesmíru Autor: Michal Vraštil Pracoviště: Fyzikální ústav Akademie Věd Vedoucí práce: RNDr. Michael Prouza, Ph.D., Fyzikální ústav Akademie Věd Abstrakt: Zrychlená expanze vesmíru představuje jednu z hlavních záhad teoretické fyziky. Ačkoli předpoklad nenulové kosmologické konstanty poskytuje minimální rozšíření obecné relativity, které je v souladu s pozorováními, bylo navrženo mnoho teorií modifikované gravitace jako možných alternativ. Předpovědi tvoření kosmických struktur pro tyto modely v nelineárním režimu jsou velmi drahé a je obtížné, ne-li nemožné, prozkoumat celý obrovský prostor modelů a parametrů pomocí N-částicových simulací s vysokým rozlišením. Dokonce i v mírně nelineárním režimu mohou být perturbační metody nesmírně složité. V práci zkoumáme, zda zjednodušené dynamické aproximace, použitelné pro určitou sadu kosmologických pozorovatelných, mohou být použity pro zkoumání modelů modifikované gravitace s přijatelnou přesností. V případě chameleoní gravitace jsme zjistili, že její efekty jsou skryty na škálách menších než kupy galaxií. Na velkých kosmologických škálách jsme zjistili,...Title: Study of dark energy and modified gravity and their influence on the cosmological parameters of the universe Author: Michal Vraštil Institute: Institute of Physics of the Czech Academy of Sciences Supervisor: RNDr. Michael Prouza, Ph.D., Institute of Physics of the Czech Academy of Sciences Abstract: Discovery of the accelerated expansion of the Universe poses a major theoretical puzzle. Although the assumption of a non-zero cosmological constant provides a minimal extension of general relativity that is consistent with observational data, many theories of modified gravity have been suggested as possible alternatives due to serious problems connected with the cosmological constant. Numerical predictions of structure formation for these models in the fully non-linear regime are very expensive and it is difficult, if not impossible, to explore such a huge space of models and parameters using high-resolution N-body simulations. Even in the mildly nonlinear regime, perturbative methods can become extremely complex. We explore whether simplified dynamical approximations, applicable for a certain set of cosmological probes, can be used to investigate models of modified gravity with acceptable accuracy in the latter instance. For the case of chameleon gravity, we found that it is screened away on scales...Matematicko-fyzikální fakultaFaculty of Mathematics and Physic
Study of dark energy and modified gravity and their influence on the cosmological parameters of the universe
No full textTitle: Study of dark energy and modified gravity and their influence on the cosmological parameters of the universe Author: Michal Vraštil Institute: Institute of Physics of the Czech Academy of Sciences Supervisor: RNDr. Michael Prouza, Ph.D., Institute of Physics of the Czech Academy of Sciences Abstract: Discovery of the accelerated expansion of the Universe poses a major theoretical puzzle. Although the assumption of a non-zero cosmological constant provides a minimal extension of general relativity that is consistent with observational data, many theories of modified gravity have been suggested as possible alternatives due to serious problems connected with the cosmological constant. Numerical predictions of structure formation for these models in the fully non-linear regime are very expensive and it is difficult, if not impossible, to explore such a huge space of models and parameters using high-resolution N-body simulations. Even in the mildly nonlinear regime, perturbative methods can become extremely complex. We explore whether simplified dynamical approximations, applicable for a certain set of cosmological probes, can be used to investigate models of modified gravity with acceptable accuracy in the latter instance. For the case of chameleon gravity, we found that it is screened away on scales..
A CMOS-Imager-Pixel-Based Temperature Sensor for Dark Current Compensation
No full textThis brief proposes employing each of the classical 4 transistor (4T) pinned photodiode (PPD) CMOS image sensor (CIS) pixels, for both imaging and temperature measurement, intended for compensating the CISs' dark current, and dark signal non-uniformity (DSNU). The proposed temperature sensors rely on the thermal behavior of MOSFETs working in subthreshold region, when biased with ratiometric currents sequentially. Without incurring any additional hardware or penalty to the CIS, they are measured to have thermal curvature errors less than ±0.3 °C and 3sigma process variations within ±1.3 °C, from 108 sensors on 4 chips, over a temperature range from -20 °C to 80 °C. Each of them consumes 576 nJ/conversion at a conversion rate of 62 samples/s, when quantized by 1 st-order 14 bit delta-sigma ADCs and fabricated using 0.18mu text{m} CIS technology. Experimental results show that they facilitate digital compensation for average dark current and DSNU by 78% and 20%, respectively. Accepted author manuscriptElectronic Instrumentatio
On linear inversion of moving averages, discrete equalizers and "whitening" filters, and the related difference equations and infinite systems of linear equations
No full textFlow compensation in a MEMS dual-thermal conductivity detector for hydrogen sensing in natural gas
No full textConventional thermal conductivity detectors (TCDs) demonstrate a flow dependence. The approach presented here to reduce the flow dependence is based on the on-line flow compensation using two thin-film sensors on membranes in parallel on the same chip that are differentially operated. These are laterally identically, but with a different depth of the detection chamber, resulting in different quasi-static sensitivities to the thermal conductivity of the sample gas. The effects of conduction and convection in the structure have been studied using COMSOL Multiphysics. First prototypes have been fabricated and are presently tested.Accepted Author ManuscriptElectronic Instrumentatio
Everyday Life of British Soldiers during the Peninsular War 1807-1814
No full text(in English): Author of this thesis analyses everyday life of the British infantrymen during the Peninsular war in the years 1807 - 1814. Considering the large scale this topic, the author decided to focus only on specific aspects. On the base of it, the thesis is divided to four chapters. First chapter deals with general diplomatic and military context, second chapter deals with everyday life of British soldiers on British Isles, which means recruiting, drill and quartering. Third chapter deals with marches, camping and sickness rate. In fourth chapter there is short analysis of the British infantry tactics. Author also tries to analyse "battle experience" of British soldiers. Last chapter deals with wounds and their cure
In-pixel temperature sensors for dark current compensation of a CMOS image sensor
No full textThis thesis describes the integration of temperature sensors into a CMOS image sensor (CIS). The temperature sensors provide the in-situ temperature of the pixels as well as the thermal distribution of the pixel array. The temperature and the thermal distribution are intended to be used to compensate for dark current affecting the CIS. Two different types of in-pixel temperature sensors have been explored. The first type of temperature sensor is based on a substrate parasitic bipolar junction transistor (BJT). The second type of temperature sensor that has been explored is based on the nMOS source follower (SF) transistor of the same pixel. The readout system that is used for the temperature sensors and for the image pixels is based on low noise column amplifiers. Both types of in-pixel temperature sensors (IPTS) have been designed implementing different techniques to improve their accuracy. The use of the IPTSs has been proved by measuring three prototypes chips. Also, a novel technique to compensate for the dark current of a CIS by using the IPTS has been proposed.Electronic Instrumentatio
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