Evaluation of a tutorial programme of the Chaloupky centre - Nature school

58 s., 5 s. příl. :obr., tab. +CD ROMBakalářská práce Evaluace výukového programu střediska Chaloupky, hodnotí program Škola o přírodě. V teoretické části jsou vymezeny pojmy evaluace programů a environmentální výchova. Část výzkumná se pomocí metody kvalitativního výzkumu soustředí na samotnou evaluaci daného programu. Program byl určený pro žáky 3. až 9. tříd základní školy a pro žáky středních škol. Cílem evaluace bylo zjistit spokojenost účastníků s programem a jeho dopady na znalosti, dovednosti a postoje. Dále navrhnout doporučení k modifikaci programu, jelikož výsledek evaluace ukázal nepatrný dopad programu na žákovské znalosti, dovednosti a postoje

An Ab Initio Study of Connections between Tensorial Elastic Properties and Chemical Bonds in Sigma5(210) Grain Boundaries in Ni3Si

Using quantum-mechanical methods we calculate and analyze (tensorial) anisotropic elastic properties of the ground-state configurations of interface states associated with Sigma5(210) grain boundaries (GBs) in cubic L12-structure Ni3Si. We assess the mechanical stability of interface states with two different chemical compositions at the studied GB by checking rigorous elasticity-based Born stability criteria. In particular, we show that a GB variant containing both Ni and Si atoms at the interface is unstable with respect to shear deformation (one of the elastic constants, C55, is negative). This instability is found for a rectangular-parallelepiped supercell obtained when applying standard coincidence-lattice construction. Our elastic-constant analysis allowed us to identify a shear-deformation mode reducing the energy and, eventually, to obtain mechanically stable ground-state characterized by a shear-deformed parallelepiped supercell. Alternatively, we tested a stabilization of this GB interface state by Al substituents replacing Si atoms at the GB.We further discuss an atomistic origin of this instability in terms of the crystal orbital Hamilton population (COHP) and phonon dispersion calculations. We find that the unstable GB variant shows a very strong interaction between the Si atoms in the GB plane and Ni atoms in the 3rd plane off the GB interface. However, such bond reinforcement results in weakening of interaction between the Ni atoms in the 3rd plane and the Si atoms in the 5th plane making this GB variant mechanically unstable

An Ab Initio Study of Pressure-Induced Changes of Magnetism in Austenitic Stoichiometric Ni2MnSn

We have performed a quantum-mechanical study of a series of stoichiometric Ni2MnSn structures focusing on pressure-induced changes in their magnetic properties. Motivated by the facts that (i) our calculations give the total magnetic moment of the defect-free stoichiometric Ni2MnSn higher than our experimental value by 12.8% and (ii) the magnetic state is predicted to be more sensitive to hydrostatic pressures than seen in our measurements, our study focused on the role of point defects, in particular Mn-Ni, Mn-Sn and Ni-Sn swaps in the stoichiometric Ni2MnSn. For most defect types we also compared states with both ferromagnetic (FM) and anti-ferromagnetic (AFM) coupling between (i) the swapped Mn atoms and (ii) those on the Mn sublattice. Our calculations show that the swapped Mn atoms can lead to magnetic moments nearly twice smaller than those in the defect-free Ni2MnSn. Further, the defect-containing states exhibit pressure-induced changes up to three times larger but also smaller than those in the defect-free Ni2MnSn. Importantly, we find both qualitative and quantitative differences in the pressure-induced changes of magnetic moments of individual atoms even for the same global magnetic state. Lastly, despite of the fact that the FM-coupled and AFM-coupled states have often very similar formation energies (the differences only amount to a few meV per atom), their structural and magnetic properties can be very different

Testing of special skills of perioperative nurses by KSMOR questionnaires

Tato diplomová práce se věnuje testování speciálních dovedností perioperačních sester a je rozdělena do dvou částí. Teoretická část seznamuje s programem Erasmus+ a zabývá se problematikou perioperační péče, perioperačními sestrami a jejich klíčovými vlastnostmi a dovednostmi. V neposlední řadě řeší i oblast adaptačního procesu. Část průzkumná se zaměřuje na dotazníkové šetření KSMOR (Key Skill Managemenet in Operating Room) a vyhodnocení jeho výsledků. Cílem této práce je analyzovat speciální dovednosti perioperačních sester v oborech neurochirurgie a ortopedie ve třech nemocnicích fakultního typu. Dále porovnání speciálních dovedností perioperačních sester v jednotlivých nemocnicích a oborech.This diploma thesis focuses on testing the special skills of perioperative nurses and is divided into two parts. The theoretical part introduces the Erasmus + program and deals with the issue of perioperative care, perioperative nurses and their key characteristics and skills. It also addresses the area of the adaptation process. The exploratory part dedicated to the KSMOR questionnaire survey (Key Skill Management in the Operating Room) and the evaluation of its results. This work aims to analyse the special skills of perioperative nurses in the fields of neurosurgery and orthopedics at three University Hospitals. Furthermore, a comparison of special skills of perioperative nurses in individual hospitals and fields was added.Fakulta zdravotnických studiíDoplňující otázky pro obhajobu závěrečné práce: 1. V modifikovaných dotaznících v přílohách chybí instrukce k vyplnění dotazníku. Například není jasné, jaká hodnota je nejhorší a jaká nejlepší na škále 0 ? 2. Kde respondenti tyto informace získali? 2. Jedním z negativních zjištěných výsledků je, že více než 50 % ortopedických perioperačních sester dosáhlo špatné úrovně dovedností se sterilními nástrojovými sadami. Čím si to vysvětlujete? Co byste v souvislosti s tímto výsledkem doporučila pro praxi? Obhajoba diplomové práce s prezentací velmi dobrá.Dokončená práce s úspěšnou obhajobo

Electronic structure In-Sn alloys

The InSn system is interesting by the existence of a simple hexagonal phase for compositions from 72 to 87 at% Sn at 25 °C and from 73 to 85 at% Sn at -150 °C. These alloys are usually referred to as gamma–Sn. The InSn alloys are disordered in the whole concentration interval. In this contribution, energetics and electronic structure of InSn system is studied from first principles. A simplified version of virtual crystal approximation is employed to describe disorder. It turns out that the present approach is capable of describing phase composition of InSn system in the whole concentration interval. In particular, we are able to reproduce the existence of simple hexagonal phase around 80 at% Sn

Elektronová struktura slitin india a cínu

The In-Sn system is interesting due to the existence of the simple hexagonal (sh) structure for compositions from 75 to 87 at% Sn at 25 ºC and from 73 to 85 at% Sn at -150 ºC. These alloys are usually referred to as gamma-Sn. Here we study the electronic structure and total energy of gamma-Sn with the help of virtual crystal approximation and demonstrate that sh structure has the lowest energy in the interval of existence of gamma-tin

Hranice mezi slovesy, podstatnými jmény a přídavnými jmény

Nejasné přechody mezi slovními druhy spojené s existencí ingových tvarů (přítomné participium, guerundium, podstatné jméno slovesné), které mají ve větách různé použití a funkce.Katedra anglistiky a amerikanistikyDokončená práce s úspěšnou obhajobo