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Arctic tundra dendrochronology
Lehejček, Jiří ; Svoboda, Miroslav (advisor) ; Monika, Monika (referee)
Historically unprecedented environmental change in the Arctic ecosystems is often given into the context of its past and possible future development. In the region where instrumental meteorological observations are scarce archives need to be investigated in order to address this issues. The comprehensive synthesis one of the archives: long-live circumpolar evergreen Juniperus communis L. shrub is presented here. 20 individuals from southwest Greenland were investigated at the cell anatomy level to understand the ecology of the species and unhide its potential for environmental and climate reconstructions. The findings are as follows:
i) Stop of exponential cross-sectional conduit-lumen widening with increasing age is in contrast with conduit-lumen nature of trees. This indicates that shrubs do not need to saturate their water and nutrient demands via traits of classical hydraulic conductivity law but rather developed different mechanisms. Extreme weather conditions result in prostrate growth form. However, different weather factors probably influence shrub growth differently: While snow and wind act mechanically (a), temperature influences the form of growth physiologically (b). a) So long as the young shrub stem has high resilience to bend back to an upright position after snow melt and so long as it can withstand the wind during the vegetation season it most likely grows upright and the conduit-lumens widen. b) Temperature, resp. freeze-thaw events are responsible for the shrubs preference of safety (finite size of conduit-lumens) over hydraulic efficiency, thus not allowing for more primary growth. All of these (and other) factors are apparently working together and the transition of vertical to more horizontal growth is gradual. As a consequence, the conduit-lumen sizes may not have to be further increased (due to ecophysiological restrictions possibly also must not) because water is no longer transported against gravity.
ii) Observed age/growth trend has to be taken into consideration for further employment of the wood anatomical parameter in paleoenvironmental studies. That is, shrub cell parameters can only be used for this purposes if correctly detrended. This allows for more accurate as well as longer reconstructions because youth trend was often neglected in reconstructions based on shrub annual-rings.
iii) The south-western Greenland Ice-Sheet (GrIS) melt rates reconstruction is presented for the whole 20th century. This part of GrIS is considered as the most active. According to the presented reconstruction current GrIS melt rates are not uncommon for the last century being comparable to first decades of 20th century. This finding is particularly important contribution to the debate on Atlantic meridional overturning circulation (AMOC). Too high fresh water inputs into the Northern Atlantic from GrIS melting may slow down or even stop the AMOC which would result in more continental climate in Europe. Presented results indicate that this threshold lies higher than observed current melt rates of GrIS.
Fascinating Juniperus comunnis species has shown to be able to address many ecological as well as environmental open questions and due to its longevity and abundant distribution has a great potential to become an important player in the Arctic research.
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Freezing technology of bull sperm in relation to its survivability and fertilization ability
Doležalová, Martina ; Stádník, Luděk (advisor) ; Jiří, Jiří (referee)
The aim of optimalization the insemination doses production is to provide the highest fertilization ability of spermatozoa during the demanding proces of processing fresh semen and its subsequent cryopreservation. Temperature changes causes spermatozoa damage during the cooling and freezing. Spermatozoa is exposed to cold shock and many others limiting factors, which leads to cell death and therefore to decline of fertilization ability of thawed insemination doses. For increasing spermatozoa resistance, exactly the plasma membrane resistance against cold shock was fraction of egg yolk LDL cholesterol (low density lipoprotein) at various concentrations into the comercially produced diluents added. It is believed that LDL acts possitively to plasma membrane and helps to maintain the fertilization ability of spermatozoa after thawing. Following step in the proces of insemination doses production is slow cooling of diluted semen and equilibration, when the straws are store at cooling box for 30 minutes to 240 hours. This period is necessary to penetrate of certain diluent components into the spermatazoa also maintain the balance between their intracellular and extracellular concentration. Also important is subsequent freezing temperature gradient of insemination doses. The most suitable freezing method is based on computer controlled temperature decline in freezing chamber which allows the precise control of ice crystals formation that could tear and kill the cell.
During 2012 to 2016 was repeatedly collected semen from the group of breeding bulls (n = 27, Holstein and Czech Fleckvieh breed) at AI centre. Semen which fulfill the standard entrance conditions in first step was evenly into several parts divided. For dilution the three types of comercially diluents AndroMed, Bioxcell and Triladyl with and without LDL addition were used. Into the diluents AndroMed and Bioxcell the concentration of LDL 4 %, 6 % and 8% into the dilent Triladyl 6 %, 8 % and 10 % was added. Diluted semen was filled into the glass capillares with volume 0,1 ml and temperature +4 °C. Subsequently the sample was placed to cold bath (0°C) for 10 minutes. Then the volume of capillare with physiological solution (37 °C) was mixed and for next 120 minutes was incubate. The effect of cold shock to proportion of live spermatozoa was evaluated by using Eosin and Nigrosine staining technique during heat test of spermatozoa survivability after spermatozoa heating and after 120 minutes of incubation.
The more suitable semen diluents which provide the higher spermatozoa resistance against cold shock were AndroMed and Bioxcell. Together the possitive effect of LDL addition into the diluents to lower decrease of proportion of live spermatozoa during heat test was found (P<0.05). The most suitable LDL concentration which had a favorable influence at spermatozoa resistance against cold shock was 6 % in diluent Bioxcell. Values of the proportion of live sperm were higher at the beginning of the heat test (+1.31% to + 3.2%) and after 120 minute incubation (+5.82% to +8.41%) compared to other diluents with and without addition of LDL.
In the next step the process of equilibration was optimized, is an important part of insemination doses production. The effect of the length of equilibration for subsequent fertilization ability of spermatozoa was evaluated using spermatozoa motility based of CASA and proportion of live spermatozoa after thawing and during heat survival test lasting 120 minutes (37 ° C). Suitable semen was diluted by comercially used diluent AndroMed based on soya lecithin, filled into the straws (0.25 ml), cooled and equilibrated in cooling box for 30, 120 and 240 minutes and freezed in programmable freezing box applying four types of freezing curves differing in temperature rate decline. There was used standard and by producer recommended 3. phase freezing curve, then 2. phase freezing curve, and 3. phase freezing curve with slower as well as rapid decline of temperature rate in freezing chamber, compared with standard freezing curve. The highest spermatozoa motility was found using 240 minutes of equilibration by +2.72% and +4.58% compared to other lengths of equilibration (P <0.05 to 0.01). The highest proportion of live spermatozoa was found using 120 minutes of equilibration (+6.87 % and +8.68 %). The highest average spermatozoa motility during heat test after thawing was achieved by using 2. phase freezing curve (from +2.97% to +10.37%, P <0.05), also in the proportion of live spermatozoa (from + 4.37% to +8.82%, P <0.01). When evaluating interaction between the length of equilibration and freezing curve (standard 3. phase and 2 . phase freezing curve), the highest average spermatozoa motility and proportion of live spermatozoa using 240 minutes of equilibration by both freezing curves was reached, there was no statistically significant differences. As well as, in all evaluated parts of this study the individual differences between ejaculate of bulls and within semen from one bull (P <0.05) as secondary effect were found.
To maintain good fertilization ability of semen during cryopreservation is necessary to increase the spermatozoa resistance against cold shock using addition of correct concentration of LDL into the commercially used diluents AndroMed and Bioxcell. Subsequently the fertilization ability of insemination dose is influenced by cooling, the length of equilibration and freezing. The length of equilibration 120 minutes and more as well as gentle way of freezing according to freezing curve, which ensures a gradual decrease of temperature in freezing chamber provided the higher average spermatozoa motility and proportion of live spermatozoa.
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Types of Senior Housing Focused on Situation in the Zlín Region, Description of Supply and Demand
Válek, Tadeáš ; Spirit, Michal (advisor) ; Žák, Květoslav (referee)
This bachelor thesis describes issues with housing for elderly people in Czech Republic. It deals with the care for seniors in the system of social services by the Social Services Act No. 108/2006 Coll. and in the health care system. It also describes these two rather separate systems and talks about problems that come from this discreteness. The thesis is also concerned with the flats of special purpose and with housing issue in general. The goal of this thesis is to evaluate the demand for services for seniors in the Zlín Region and to consider if the demand is met by a sufficient supply. Predicted demographic changes are also taken into account when considering the situation of services for elderly people and in connection with the expected growing demand. The situation in services for elderly people in Zlín Region was found to be above the average level for the Czech Republic. However it still requires development in many aspects and a connection with the ageing population. This thesis presents the outcome of the survey about the elderly care in concrete municipalities of the Zlín Region. The survey shows that in most of the municipalities considered some kind of care was either already provided or it was planned for the future.
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Germany as a part of the eurozone
Temlíková, Lucie ; Žamberský, Pavel (advisor) ; Sankot, Ondřej (referee)
The thesis concentrates on Germany, one of the members of the eurozone. The goal of this thesis is to answer the question if Germany has advantages from membership in the eurozone and if the eurozone really needs its help. I tried to find the answer on this question on basis of analysis of the most discussed Germany's economic success and problems and I focused on -- according to Angela Merkel the most effective policy in overcoming of crisis -- austerity policy. In the first part I introduced eurozone creation related to Germany and reasons why Germany decided to become one of the founders of the eurozone. In the second part I focused on the theory of optimum currency area where I introduced mechanisms that can replace exchange rate during the microeconomic and macroeconomic shocks. In the third part of my bachelor thesis I described current economic situation in Germany. In the last part of my bachelor thesis I looked into overcoming of crisis "in a German way". In conclusion I answered all the crucial questions and introduced action that Germany should take to overcome crisis.
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Právní a zdravotně sociální aspekty činnosti OSPOD jako ustanovených opatrovníků v zámu nezletilých dětí
BORSKÁ, Jana
The Czech Republic as a signatory of the Convention on the Rights of the Child has vested the practice of state administration in the field of care for minor children to municipalities with extended powers, where the protection of the rights and legitimate interests of minor children is safeguarded by state authorities of social and legal protection of children (ASLPC hereinafter). These authorities are incorporated to the extent laid down by the Act on Social and Legal Protection of Children (Act No 359/1999 Coll., as amended). The position and roles of ASLPC and their competence and jurisdiction are also regulated by the same act. The position of workers of these authorities and its legal embodiment is equally important. Regarding professionality, there are high demands on these workers. In the Czech Republic, significant changes in legislature have been made over the past three years. These amendments have led to the strengthening of the rights of minor children and to the establishing of new tools for their protection. In connection with the adoption of new substantive regulation of family law, which is now exhaustively dealt with by the Act No 89/2012 Coll., the Civil Code, new procedural rules have been established regarding protection of rights of minor children. Such procedural legislation includes (apart from the long-existent Act No. 99/1963, the Code of Civil Procedure) the Act No 292/2013 Coll., on Special Civil Proceedings. The decision-making regarding minor children has been vested mainly by the state into the competence of courts. The courts appoint the locally relevant ASLPC as a guardian who then represents the interests of minor children. The purpose, interwoven with and derived from the first one, was to explore the opinions of selected social workers of ASLPC and of district court judges regarding the defined problems occurring during the work of ASLPCs and courts while protecting the interests of minor children. These particularly include: the use of the tool of precautionary measure; problems of different territorial jurisdiction of courts and ASLPCs; processing of complaints regarding bias in various phases of the proceedings; professional training of workers of ASLPC It is evident from the proposals of both judges and ASLPC workers that it is necessary to unify territorial jurisdiction. The courts are suggesting the priority criterion of the address where the child mainly resides. ASLPC workers suggest the official permanent residence as the prime criterion. Bias causes problems in all phases of proceedings. It is obvious that courts take differing approaches towards the solution of this problem (some courts solve the problem of bias complaints filed by the parties while other courts do not) and for ASLPC workers it is difficult to assess how to act when such complaint is raised against them. The training of ASLPC workers - workers are obliged to educate themselves and their employer is obliged to finance such training. Not all ASLPCs are able to provide training in the required extent - due to financial reasons (the average costs of education of one employee pose from 9,169 to 13,400 CZK annually and they cover approximately 6 days of training). The heavy work-load caused by insufficient numbers of ASLPC employees prevents them from completing such compulsory training. As part of the examination of the "participation of a collision guardian in court proceedings" it has been found out that irregular participation of the worker in the proceedings (absence from participation in appeals proceedings); incomplete reports (directed to courts) from surveys in families. Based on comprehensive examination of the problems of territorial jurisdiction, it was recommended that requests are independently recorded and financial compensation is provided for ASLPCs who are requested to represent minors in front of courts, to draft proposals for precautionary measures.
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Ferdinand Vaněk on the stage
Dvořáková, Jana ; Augustová, Zuzana (referee) ; Just, Vladimír (advisor)
During seventies and eighties, respecti vely in the period 1975 - 1985, nine new plays by four authors have emerged, mostly one-act plays, called together vaňkovky. They earned this label on basis of the identical name of the main character, which is Ferdinand Vaněk. Nevertheless "These plays lack firm common theme, rather they form only "occasional" stories/sketches a konto Ferdinand Vaněk than genuine dramas wi th strong self-supporting stories. ,,142 Some authors produced just one such play (Jiří Dienstbier Reception) , others two of them (Pavel Landovský Sanitary Night, Arrest) and some even three (Václav Havel Audience, Unveiling, Protest; Pavel Kohout Permit, Morass, Safari). Journey of vaňkovky to the stage was a complicated one. In the original years it was not only due difficulty of their staging. Most of them (Audience, Protest, Unveiling, Permit, Arrest) were premiered abroad, concretely in Viennese Burgtheater. Besides these world premieres did I turn my attention only to professional plus most significant non-professional productions presented in Czech Republic. In turn of the Velvet revolution in 1989 proscribed authors and plays were free to show on stages and vaňkovky could be seen with perhaps excessive frequency. This period, lasting approximately one and half year and expiring by the end...
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Finite reinsurance
Žďárský, Pavel ; Mandl, Petr (referee) ; Bohumský, Petr (advisor)
This thesis is divided into six chapters. The introduction reminds the appendages of traditional reinsurance. Definition, functions and clear generalization of both types and common provisions of finite reinsurance contracts is summarized in the second chapter. The third chapter is engaged in the available regulatory rules which relates with finite reinsurance. There is a preparatory act of the Czech Insurance law, the American standard FAS 113 and the European standard IFRS 4 described. Text is concentrates in different requirements on risk transfer of these standards. The fourth chapter describes risk transfer methods, which have been used until recently. Next, there is made a proposal of a new method, method of partial risk transfer, which eliminates significant shortcomings of the currently used methods. Features of partial risk transfer methods, comparing to other methods are described on two practical examples. There is a possible way of partial risk transfer accounting delineated in the fifth chapter. The conclusion is the summary of benefits of the new method.
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The Role of Religious Law in the Legal system of the State of Israel The Agunah
Sedláková, Dominika ; Sládek, Pavel (advisor) ; Boušek, Daniel (referee)
The present M.A. thesis deals with the role of Jewish religious law in the legal system of the State of Israel. The aim of this work is to describe unique nature of Israeli legal system due to the incorporation of Jewish religious law. The thesis focuses at the marital and divorce law. This legal branch was the most influenced by Jewish religious. The case of agunot, litteraly chained women, was chosen as an example of the application of Jewish religious law in the legal system of a modern country. Agunah is a woman who is not permitted to remarry because she has not been given a divorce list nor she is widowed. The problem of agunot is rather ancient and Jewish scholars have tried to find a solution for many centuries. However, nowadays when society calls for an equality between genders and for standard human rights, this issue is even more pressing than ever before. Hardly is a woman accorded right to human dignity if her husband can keep her at his own mercy. At the absence of systemic legal tool, the whole community, including the Orthodox rabbis, should be willing to exert moral pressure such as banning lenient men from synagogue offices and honors to help women to be released from their marriage. More so because the motive behind withholding a geṭ is in most cases economic or other benefit....
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Regulation of retailer-supplier relatiohships within the food chain
Mokrejšová, Veronika ; Zadražilová, Dana (advisor) ; Klosová, Anna (referee) ; Zeman, Jiří (referee) ; Vyhnálek, Petr (referee)
This thesis deals with retailer-supplier relationships within the food chain, and with possibilities of their regulation. The aim is to assess the effect of regulation of retailer-supplier relationship, through "Act on Significant Market Power and Abuse thereof" on particular food chain members, and eventually to propose an alternative solution of their regulation. The thesis states the following hypothesis: The Act on Significant Market Power does not change bargaining power between suppliers and retailers. The thesis is divided into five parts. The first of those defines the issue of retailer-supplier relationship, especially the so called "unfair practices". The mind-set of the European Commission which judges the unfairness of a practice, according to its impact on consumer, investment and competition is stressed. When comparing market shares and profit abilities, it is obvious that supplier sector is not disadvantaged in relation to retailing, however, there are cases of small and medium enterprises over which retailers can impose their bargaining power. Retroactive changes and excessive risk transfer on a business partner are then indicated as unfair, which is confirmed by microeconomic analysis. The second part maps means of regulation, through hard and soft law in the EU and its member states with focus on the Czech Republic, where the Act No. 395/2009 Coll., on Significant Market Power in the Sale of Agricultural and Food Products and Abuse thereof is applied. It is found that regulation within the EU is heterogeneous and the results of different regulatory mechanism in different countries differ. The third part talks about self-regulatory possibilities constituted by corporate social responsibility. The main solution of retailer-supplier relationships is represented by stakeholder dialogue, in which contractual parties look for the basis of their antagonistic positions (which are hidden in their interests and needs), and try to identify mutual needs and to create shared value. This approach increases the created value, which is advantageous for both partners, instead of redistributing the value to the benefit of the stronger partner. The fourth part presents the results of a survey conducted among retailers, retailer suppliers and farmers, their opinions about the Act on Significant Market Power, about changes caused by this Act and about particular unfair practices. It was realised that the Act does not help the suppliers very much, in that the bargaining position was improved only with a tiny part of the respondents, and the Act even did not fulfil the role of small and medium sized enterprises protection. The everyday practice of retailer-supplier relationships remains (after changing few legal formulations in the contracts) almost the same as it was before the Act came into force. The only considerable change is shortening the payment period to 30 days; however, there are suppliers that are not content about this provision. The farmers do not feel any consequences of the Act; retailers regard it as business barrier and excessive regulation. Thus, this part confirms the hypothesis. The final part of the thesis proposes a solution to this issue by engaging many stakeholders: the business partners (self-regulation), the State (regulation through general universal act), consumers, non-governmental organisations and media (generating demand for responsible behaviour of firms).
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The development of the crime on credits in the South Bohemia before 2014
BUŠKOVÁ, Tereza
The aim of this study is to analyze the development of committing a credit fraud offence under § 211 of the Act. no. 40/2009 Coll., the Penal Code (particularly the development of this crime and the development of the amount of the damage) and consequent comparing the selected macroeconomic indicators development in the period 2005-2014 in the region of South Bohemia. In this work secondary data analysis methods were used. Statistical data obtained from the South Bohemian branch of the Czech Statistical Office and statistical data from Crime Police of the Czech Republic was used as the source. The data evaluating the amount of detected cases of this crime committed by the offenders in the Region South Bohemia, according to the region where the fraud was commited, was analyzed. The analyzed file was 5,713 offenses and 4,219 offenders. The defined set was divided into seven parts (districts), according to the local jurisdiction of the territorial departments of the Czech Police. The observed data was compared with selected macroeconomic indicators. From the results it can be concluded that the highest rate of loan fraud offence (calculated per 1,000 inhabitants) is in the district Stra-konice. Conversely, the lowest crime in the same period is in the district Jindřichův Hradec. This work also re-vealed that the development of macroeconomic indicators has no effect on the development of this crime. In conclusion, it is recommended to promote economic education at primary and secondary schools, thus improving the financial literacy of the population. Furthermore, we can recommend the consistent use of, the Central Credit Register, which is already available, as well as supporting of changes in the legislation, so that the providers have an obligation to investigate the credit applicants more and make the offenders of this crime discouraged by higher penalties imposed for credit fraud.
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