National Repository of Grey Literature 27,483 records found  beginprevious27474 - 27483  jump to record: Search took 2.08 seconds. 

Founding in region of Palkovice
Poruba, Michal ; Erbenová, Alexandra (referee) ; Brdečková, Helena (advisor)
Objective of this bachelor´s thesis Foundation in region of Palkovice is to compare the conditions of foundations in different locations in the region of Palkovice. Calculations of bearing capacity of foundation soil and settlement analysis of the foundation structure were the criteria of comparison. Variants with and without groundwater were included in the calculations.

Mental and physical effect on health of exercising on regenerative tables Body Quest on women in seniors age
STROPKOVÁ, Kateřina
This bachelor's work deal with the problem of physical aktivity for women in senior age. Specifically the work investigates the impal of exercise on regenerative tables for the women . The work is dividend into two parts - theoretical part and research. In the theoretical part is explained the terms of "age" and "senior" and discusses further the influence of physiological and pathological effects on health and the movement of seniors. The research was used qualitative with semistructured interview method. The aim of work is to find out the satisfaction of seniors and effectiveness of exercise on regenerative tables.

Growing technology earthy Tribulus terrestris (Tribulus terrestris L.) and its use
HUDSKÁ, Miluše
This bachelor thesis deals with Puncturevine (Tribulus terrestris) as for planting, content substances, pharmacological use and with influences of planting technology or elicitors upon the active substance contents. Saponines, flavonoids, and phytosterols are the main active substances of Puncturevine. The saponines act as aphrodisiacs, the flavonoids treat with heart diseases and the phytosterols decrease the cholesterol concentration in blood plasma. The active substance contents depend on the planting and elicitor influences. The practical part is focused on the matters of free soil growing and economy of planting the herb.

The effect of abiotic and biotic factors on corolla colour polymorphism in \kur{Dactylorhiza sambucina} (Orchidaceae)
KREMLOVÁ, Markéta
The European rewardless orchid Dactylorhiza sambucina commonly produces yellow- and purple-flowered individuals in frequencies that in different populations range from balanced to very unbalanced ones (we can find even monochromatic populations). I studied an effect of abiotic factors (soil pH, hydrolimits, slope and altitude of the locality), biotic factors (weight and viability of the seeds obtained from crossing between and within morphs) and the size of the populations on corolla colour of two morphs in European populations (the Czech Republic, Italy, Austria, Germany, France).

Effect of Trampling on the Vegetation of Dry Grasslands
Vacková, Nikol ; Horčičková, Eva (advisor) ; Husáková, Iveta (referee)
1 It has been proved that the effect of vegetation trampling (Anthropogenic and animal) significantly changed. The aim of this study was to gather available information of these changes and effects of secondary factors, particularly focusing on the dry-grasslands (Festuco-Brometea). Vegetation on trampling disturbed areas is already much lower, it has less vegetation cover and there is more bare soil. On the bare soils increases temperature and greater evaporation of water. Due to changes of climatic conditions of microhabitats the diversity of species is changing. Vegetation is not changed only on the trampling trails, but also in the surrounding area, up to a distance of 2 meters from the trail. Most vulnerable to trampling and most susceptible for changes in vegetation are moist habitats, the most resistant type of vegetation is thermophilic dry-grasslands. The behavior, abundance and intensity of browsing animals have also effect on vegetation changes. Animals during their browsing vegetation disperse seeds and plants spread beyond their natural occurance.

Vegetation diversity of abandoned settlements
Poslová, Kateřina ; Vojta, Jaroslav (advisor) ; Kačmar, Martin (referee)
In my bachelor thesis I am concerned with influence of abandoned settlement and historical land use on vegetation. I am interested in settlements of different age and type - from ancient settlements, medieval castles and villages to villages that were abandoned in modern times. I am also concerned in diversity, composition and development of plant communities and with influence on soils. I am also interested in the question of persistence of anthropogenic influence on landscape. Settlement and land use largely influence landscape. They alter diversity of vegetation, quality of soil and relief of landscape. These changes can be lasting or maybe irreversible. Nutrients are acumulated and pH is risen in abandoned settlements. Nitrophilous and ruderal species are also much more frequent than in ancient forests around. Human can enrich diversity of vegetation in landscape by his influence. Mutual comparison of influence between similar types of settlements in landscapes with different climate and sub-soil may be another direction in future research. Key words: abandoned settlements, medieval castles, villages, diversity, vegetation, secondary forest, historical land use, nutrients, pH

Cytoplasmic membrane of Bacillus subtilis Regulation of the physical parameters
Beranová, Jana ; Konopásek, Ivo (advisor) ; Branny, Pavel (referee) ; Holoubek, Aleš (referee)
Bacillus subtilis, a model Gram-positive soil bacterium, employs two distinct mechanisms in its membrane adaptation to low temperature: 1) Long-term adaptation to suboptimal temperature is accomplished by increasing the ratio of anteiso- to iso-branched fatty acids in the membrane lipids. 2) After a sudden temperature decrease, the oxygen-dependent fatty acid desaturase (Des) is induced which desaturates fatty-acyl chains incorporated in membrane lipids. The transcription of the gene encoding desaturase, des, is activated by the decrease of the membrane order, via two- component system DesK-DesR. In this work, I studied the influence of cultivation conditions on the mechanisms of B. subtilis membrane adjustments for a low temperature employing fatty acid analysis, fluorescence spectroscopy, differential scanning calorimetry and methods of molecular biology. In the first part of this work, I examined the impact of the cultivation medium on the composition and biophysical features of the B. subtilis cytoplasmic membrane during growth under the optimal (40 řC) and suboptimal (20 řC) cultivation temperature. I compared the nutrient-rich complex medium containing glucose and the mineral medium supplemented with either glucose or glycerol. The results obtained showed the crucial importance of medium...

Recent morphogenetic processes in the Geodynamic Observatory Pecný area
Steklá, Tereza ; Kalvoda, Jan (advisor) ; Vilímek, Vít (referee)
The paper deals with recent morphogenetic processes in the Geodynamic Observatory Pecný (GOPE) area and their influence on the evolution of landforms. Evaluation of their impact was based on selected geomorphological phenomena. Special attention is emphasized intense weathering, hillslope processes, erosion and antropogenic impact. Analysis of microclimatic conditions, humidity and temperature conditions of soil and ground water level in the area GOPE are also presented.

The relationship between plant diversity and diversity of abiotic conditions in Křivoklátsko PLA
Valtr, Vojtěch ; Chuman, Tomáš (advisor) ; Jačková, Kateřina (referee)
The relationship between plant diversity and diversity of abiotic conditions in Křivoklátsko PLA Abstract The relation between plants and abiotic conditions has a great influence for their lives and distribution. In first part I describe influence of individual physical-geographic factors on plant diversity and distribution. These are climate, soils, relief, disturbances and ecophenomenons. In second part we learn about biodiversity gradients. These are size and remoteness of habitats thus island phenomenon, altitudinal gradient and latitudinal gradient. In the next part, I present a place, where I evaluate relation between plant diversity and altitude, slope and exposition. In Křivoklátsko PLA there is 1 543 species of vascular plants. With their distribution in area I found out the highest diversity is in the rivers and creek valleys, especially in Berounka valley. The results clearly say the diversity of vascular plant is in the deep valleys because of river phenomenon. The biggest influence on vascular plant has altitude. Two remains factors don't influence plant diversity as altitude.

The table value of tubers from organic and conventional potato growing system
BOUŠKOVÁ, Michaela
The objective of this thesis was to assess the potato varieties produced by ecological and conventional farming, to find out the deviations of cooking types and to establish the cooking quality of the tubers The cooking quality of potatoes was established subjectively, based on sensory analysis. The individual characteristics of the cooking quality which were assessed included the colour of flesh, consistency, texture, flouriness, moisture, taste, and tuber darkening after cooking. The results suggest that the characteristics of the cooking quality depend mostly on the variety. The year of growth and the ways of farming also form a minor influence. The deviations of the actual cooking type of the assessed varieties from the declared cooking type were established according to the method of the Czech Agriculture and Food Inspection Authority. The results of the assessed varieties show that the cooking type was not affected; minor differences were caused by the year of growth.