National Repository of Grey Literature 71 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
The influence of oral hormonal contraceptive use on female sexuality: the evolutionary perspective
Klapilová, Kateřina ; Weiss, Petr (advisor) ; Procházka, Ivo (referee) ; Blažek, Vladimír (referee)
The proposed thesis is comprised of eleven papers connected by the employment of the evolutionary psychological approach in research on various aspects of human sexuality. The aim of the first monothematic part is to demonstrate the evolutionary-psychological approach to one recent phenomenon in female sexuality - the use of oral contraceptives (OC). OC use has been shown to suppress psychological mechanisms that are considered to be adaptive in the fertile period of the natural menstrual cycle. In particular, OC users' ratings of male stimuli that provide the cues of genetic quality and compatibility are lower in comparison with normally cycling women. Moreover, the increase in sexual desire and in the prevalence of proceptive behaviour observed during mid-cycle in normally cycling women is diminished. However, the impact of this phenomenon on mate-choice and relationship dynamics in an ecological context has not been studied. In the first study, we have analyzed the data of Czech women obtained via representative sampling within the Czech National Survey of Sexual Behavior. Results indicated that normally cycling women had a significantly higher number of one-night stands during the last year in comparison to OC users even when living in a long-term relationship. OC usage was also shown to have...
Stabilized operation of a 110 kV power line
Leinweber, Luboš ; Špaček, Jaroslav (referee) ; Blažek, Vladimír (advisor)
My work is dealing with parameters long high voltage (vvn)110kV with wanted output parameters(voltage rating , cos , aktive power and size of power line) namely in theoretic part as well as in practic part , which I made from required parameter values of power line concretely by direct-axis reactance and shunt admittance. At first I did the approximate calculation by reserve T-networks ( T , , , Steinmetz), by short T-network , idle T-networks and after that I made perfect conclusion and elaboration by the help of lines. I described these kind of calculation in the theoretic part. I compared the results and I determinated which method was te best.
Relationship between male facial morphology and assessments of fighting ability
Třebický, Vít ; Havlíček, Jan (advisor) ; Stirratt, Michael (referee) ; Blažek, Vladimír (referee)
Social interactions may sometimes collide and result in conflicts which can be solved among others by means of physical violence. However, physical confrontations entail a risk of injuries and other fitness-affecting consequences. Thus, it seems likely that cognitive and behavioural processes to assess the fighting ability may have evolved by means of natural selection. This would facilitate adaptive decisions and responses to decrease costs and increase benefits from potential confrontations. Behavioural characteristics are often assessed according to physical traits such as facial appearance. People are relatively accurate in attributions of certain characteristics from facial traits, like physical strength or propensity for aggression. However, previous research was not based on data about actual fighting ability. Therefore, we conducted a series of empirical studies testing perception of formidability, accuracy of the perception and attempted to identify facial morphological traits related to the assessments and actual fighting performance. To test these issues, we employed Mixed Martial Arts contestants and used their record of victories and defeats. The results of our first study revealed that people are indeed able to relatively accurately assess the fighting ability of others. The fighting...
Age estimation on the basis of morphological development of children face: mathematical modeling
Kočandrlová, Karolina ; Velemínská, Jana (advisor) ; Blažek, Vladimír (referee)
This thesis was focused on the evaluation of facial morphology and growth changes of the children face from 3 to 6 years based on longitudinal data. Facial growth and shape changes, variability and sexual dimorphism of face were observed based on 3D facial models of 14 girls and 12 boys. The 3D scanning took place annually, there were 85 3D facial models altogether. We used the geometric morphometric methods, more precisely Coherent Point Drift - Dense Correspondance Analysis, Per Vertex T-Test and Principal Component Analysis, to analyse facial models. Superimposed colour-coded maps were used to quantify differences of average shells and shell distance significance maps were used to visualise statically significant differences. The most intensive facial growth changes were seen between 4 and 5 years in girls and between 5 and 6 years in boys. As a result of growth and ageing changes, the orbital, nasal and labial areas and chin were enlarged and forehead and buccal region were expanded. As a result of shape and ageing changes, orbital, nasal and labial areas and chin became more prominent and forehead and buccal region gradually narrowed. The ageing trajectories did not differ in direction in both sexes, but showed slightly more intensive growth and shape changes in girls. From 3 to 6 years it was...
From the facial reconstruction based on the skull to the identification of the individual: demands, principles, problems
Moštková, Miroslava ; Brůžek, Jaroslav (advisor) ; Blažek, Vladimír (referee)
Facial reconstruction based on the skull is a technique allowing recreation of the original facial features of an individual. However, recreation of the exact look is nearly impossible at this time. Facial reconstruction is used during archaeological research or during investigation of forensic cases. The facial reconstruction methods used are morphoscopic, morphometric, or a combination of the two. They are used during a manual and computerized process to create two dimensional or three-dimensional reconstruction of the individual. Accuracy and reliability can be determined with each one of these methods by quantitative and qualitative measurements. Reliability and accuracy of the facial reconstruction should also be considered from a view of the facial perception. The human face is perceived in a holistic-analytical way which is based on a calculation of the distances between different features. Facial reconstruction is based on the recognition of familiar faces that are perceived on the basis of internal features that are not influenced by differences in the view angle or expression. Unfamiliar faces are perceived on the basis of from external features. Faces with significant facial features are identified faster. Facial features can be organized by the significance of their influence for recognition of...
Morphological changes of adult human face during aging
Čiháková, Lucie ; Velemínská, Jana (advisor) ; Blažek, Vladimír (referee)
Processes of biological changes of organism over time distinctly manifest themselves in a face morphology. The present study age changes are observed as shape and size changes of transversal dates of surface 3D virtual models of faces of 443 women and men (22-88 years old) devided into six age groups in decade. Differences in faces among each age group with respect to the sex were investigated and a sexual dimorphism and its gradual progress with the age using methods of geometric morphometrics (coherent point drift - dense correspondence algorithm, principal component analysis, per vertex t-test, shell-to-shell deviation). A significant difference among age categories was observedd both in shape as well as in form of the face. The faces of women and men were becoming wider with age and convexity was decreasing at the same time. A decline of the whole forehead and of the profile of the men's nose was observed, whereas the women's foreheadwas getting bevel due to the decline of the top part and a profile of the nose wasn't changed with the age. On contrary, the men's chin was unvarying with the age, while the women's chin was sliding out foward. There was observed a distinct decline in the front part of a upper jaw with the both sex. It was found out that after the seventh life decade the face gets...
Anthropology of autism - is autistic behavior a suitable model for the evolution of the symbolic behavior of anatomically modern humans?
Babuská, Anna ; Brůžek, Jaroslav (advisor) ; Blažek, Vladimír (referee)
My bachelor thesis is trying to answer the question inspired by articles on autism as a precursor of modern behavior and by articles evaluating the possibility of autists being authors of palaeolithic parietal art. The work presents information about parietal art and about autism, and leads to the conclusion that autists influenced modern human behavior during its evolution, and they could be authors of some paintings or sets of paintings of parietal art. Powered by TCPDF (www.tcpdf.org)

National Repository of Grey Literature : 71 records found   previous11 - 20nextend  jump to record:
See also: similar author names
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1 Blažek, V.
1 Blažek, Viktor
10 Blažek, Vojtěch
1 Blažek, Václav
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