National Repository of Grey Literature 35,445 records found  beginprevious35436 - 35445  jump to record: Search took 2.96 seconds. 

Risk analysis of selected SCI by invasive alien plant species
Janošková, Romana ; Berchová, Kateřina (advisor) ; Martin, Martin (referee)
The issue of spreading invasive plant and animal species is becoming increasingly topical. It is not possible to control the spread of invasive species without appropriate interventions and restrictions. This thesis researches endangering of SCI by selected invasive plant species whose presence was monitored in 2015. An occurrence of invasive plants, depending on the altitude and the area of the invasion in the selected SCI, is compared in this thesis. A suitable proposal limiting the spread of invasive plant species is also considered in this work. Using statistical analyzes the level of threat of the SCI is monitored and also found out whether the protection of habitats that are subjected to protection of the SCI.

Stress load in a specific job
Leger, Patrik ; Michálek, Pavel (advisor) ; Daniel, Daniel (referee)
The submitted thesis deals with the problematic of stress Fire Brigade, especially workplace emergency number 112, where calls are received and handled and further workplace "Spojař" where are the emergencies handled eventual exit units or passing other rescue units. The thesis also discussed the conditions for the reception of members on these specific staff positions. With regard to the topic of the theoretical part of the thesis will discuss the stress. The concept stress at work is theoretically defined, divided and classified. There is also defined psychological stress at work generally, its origin, species, its causes and consequences. The thesis also presents particular stressors emergency operator and employee workplace signalmen. Is described how operators respond to stress and how to cope with stress. The thesis also mentioned the burnout syndrome, its causes and prevention of this dangerous syndrome. In the empirical part of the research will be described using a questionnaire and the data will be evaluated using appropriate statistical methods.

Schopnost šíření a uchycování rostlin a jejich vliv na druhové složení lučních společenstev
VÍTOVÁ, Alena
Mechanisms maintaining species diversity in managed meadows are not still well understood. To assess the effect of several important factors on species composition of meadow communities, species regeneration abilities were studied in the course of several years. The research was based on manipulative experiments, where species establishment and survival in seed addition experiments as well as during natural regeneration was observed. By comparison of species establishment in intact and disturbed vegetation, effect of dispersal limitation, abiotic conditions and competition was assessed as well as regeneration ability of different functional groups.

Infrared measurements in medium and long wavelength on COMPASS
Vondráček, Petr ; Horáček, Jan ; Pánek, Radomír ; Gauthier, E.
The experimental study of radial profiles of parallel heat flux in the scrape-off layer (SOL) of the COMPASS tokamak shows a systematic discrepancy between medium (MWIR) and long (LWIR) wavelength infrared (IR) thermographic measurements. Significant temperature and heat flux overestimation is observed in the MWIR range, whilst the LWIR range is almost not affected. It is assumed to be caused by a presence of dust particles creating sub-pixel sized micro hot-spots. Significant inhomogeneity of the surface conditions across the limiter is observed, resulting in local disturbance of the derived heat flux profiles (decay length variation up to ~ few tens of percent). Influence of the inhomogeneously distributed micro hot-spots is suppressed using correction factors (the heat transmission coefficient α) for each pixel separately in the heat flux calculation. Procedure of the α coefficient estimation is described.

Ichthyological surveys of the Nýrsko and Karhov reservoirs and investigations of abundance, age composition and spawning dynamics of asp population in the Želivka Reservoir in 2015.
Vašek, Mojmír ; Soukalová, Kateřina ; Kočvara, Luboš ; Blabolil, Petr ; Baran, Roman ; Frouzová, Jaroslava ; Koliada, Ievgen ; Muška, Milan ; Šmejkal, Marek ; Draštík, Vladislav ; Kolařík, T. ; Prachař, Zdeněk ; Sajdlová, Zuzana ; Vebrová, L. ; Vejřík, Lukáš ; Kubečka, Jan
The species composition and the relative abundance and biomass of fish communities in the Nýrsko and Karhov reservoirs were evaluated by means of standardised multimesh gillnets. The spawning stock of asp in the Želivka Reservoir was individually marked using PIT tags and the density and behaviour of tagged fish at the main spawning grounds were examined through the whole spawning season. The total number of reproducing individuals in the asp population was estimated. The sex-specific length and weight growth rates of adult asp in the Želivka Reservoir were also calculated. \n\n

Fish stock assessment of the Petrusplaat Reservoir in 2015, Fish stock assessment of the Honderd en Dertig Reservoir in 2015.
Jůza, Tomáš ; Soukalová, Kateřina ; Kočvara, Luboš ; Prachař, Zdeněk
The report (1) summarizes the results of the complex ichthyological survey of the Petrusplaat Reservoir in 2015. Species composition, abundances, biomasses and age composition of fish were investigated based on gillnets, seine nets, trap nets and trawl catches. Obtained results were also compared with data from previous surveys. The report (2) summarizes the results of the complex ichthyological survey of the Honderd en Dertig Reservoir in 2015. Species composition, abundances, biomasses and age composition of fish were investigated based on gillnets, seine nets, trap nets and trawl catches. Obtained results were also compared with data from previous surveys.

On the recirculation zone suppression behind HUMP profile using the DBD actuator
Procházka, Pavel P. ; Uruba, Václav
Previously, the DBD (dielectric barrier discharge) plasma actuator was used in rectangular channel to modify the properties of the boundary layer in spanwise and in streamwise orientation. The actuator was redesigned for using on the surface of the Glauert-Goldschmied body in different position to influence the point of the separation and the reattachment point as well as the total extent of the separation bubble. The most intensive effect occurs when the actuator takes effect in the point of separation. Further downstream, the ionic wind produced by DBD causes complex coherent structures in the wake for spanwise orientation in both direction. The effect of streamwise orientation is studied also. Actuator is operated in steady regime to produces continuous ionic wind as well as in unsteady regime when the vortex street is generated. The properties of vortex street is given by modulation parameters (frequency and duty cycle). The effect of these parameters on the wake is evaluated. This experiment is realized in the perspex channel connected to the blow-down wind tunnel. The HUMP profile is flush-mounted to the bottom side. The wire electrode of the actuator is situated in x/L = 0.63, 0.66, 0.69 and 0.72 of the chord length. The time-resolved PIV (Particle Image Velocimetry) is used as a main measurement technique. The flow field behind the profile is captured in longitudinal plane as well as in cross-section planes using 3D PIV. The results based on statistical quantities will be presented in this paper. More, next part will be devoted to the decomposition analysis of the flow dynamics (BOD, OPD).

Epididymal maturation – a crucial step in the post-testicular sperm development
Postlerová, Pavla ; Pohlová, Alžběta ; Zigo, Michal ; Jonáková, Věra
Mammalian spermatozoa after their development in testis undergo the post-testicular maturation in epididymis where acquire their fertilization ability and competence of movement. The epididymis is tissue with very active fluid-absorbing and fluid-secreting activity. Epididymal fluid contains ions and small molecules, proteins, glycoproteins and enzymes. The surface of spermatozoa is exposed directly to the epididymal fluid, and the sperm plasma membrane is significantly changed. Some testicular proteins are altered, masked, or replaced by new proteins/glycoproteins of epididymal origin. Several proteins produced by epididymis have been described in various mammalian species and shown to be associated with spermatozoa suggesting a role in the sperm maturation and/or sperm-egg binding and fusion. We isolated proteins from fluid, tissue and sperm of boar epididymis, and separated them by chromatographic and electrophoretic methods. We searched for known proteins using panel of antibodies and tested proteins of epididymal fluid for binding abilities. In the epididymis, we found proteins described as proteins of seminal plasma and associated with the sperm surface, such as spermadhesins, beta-microseminoprotein and acrosin inhibitor. These proteins were detected in epididymal sperm, fluid and tissue. We showed that some epididymal proteins may bind the spermatozoa and change the binding sites on the sperm surface. We determined and identified some proteins from boar epididymal fluid with affinity to heparin, hyaluronan and zona pellucida glycoproteins. These phenomena indicate that epididymal fluid proteins bind to the sperm surface during epididymal maturation and might subsequently play role in the sperm capacitation or sperm-zona pellucida binding.

Legalizace výnosu z trestné činnosti- mikroekonomická a makroekonomická perspektiva
Danková, Diana ; Šíma, Ondřej (advisor) ; Kováč, Michal (referee)
The primary objective of this diploma thesis is to comprehensively present the issue of money laundering not only on a macro level but also in terms of commercial bank and its microeconomic response to it. The main contribution of this diploma thesis is to identify the global indicators, which should be considered when drafting strategies in the fight against the legalization of proceeds from crimes. This diploma thesis addresses the changes caused by current globalization and highlights the dangerous effects it has on evolution of this consequent criminal activity together with evaluation of its potential in the future. Due to the tense situation in Europe caused by the series of terrorist attacks, part of the work is dedicated to the explanation of the relationship between terrorist financing and money laundering.

Inbound marketing of Nestlé in the area of infant formula
Hnízdilová, Lucie ; Průša, Přemysl (advisor) ; Postler, Milan (referee)
This master's thesis deals with inbound marketing of Nestlé in the area of infant formula. Its aim is to determine whether inbound marketing is a suitable tool for infant formula promotion which is strongly regulated. The thesis is based on a comprehensive analysis of the area of infant formula and analysis of inbound marketing strategy of one of the most dominant companies on the market, Nestlé. In the beginning, attention is focused on important milestones of the development of infant formula and on a case which caused an important change in the promotion of infant formula, Nestlé boycott. The following section deals with the supervision and marketing regulation both in international and the European law. The final chapter of the first part emphasizes on philosophy of inbound marketing. The second part is introduced by outlining the current situation both on global and the Czech market of infant formula. Then, attention is focused on Nestlé. Its introduction is followed by analysis of company's inbound marketing strategy which is then evaluated. For this purpose, analysis of the effectiveness of marketing tools is made with regard to strategic goals of the company.