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Vyhledávací studie obchvatu města Hustopeče / Researching study of by-pass road of city HustopečeTomešek, Zdeněk January 2012 (has links)
This graduation thesis deals about researching study of by-pass road of city Hustopeče, district of Břeclav, Southmoravian region. This city passes main road number 425, which should be connected with the by-pass road. The by-pass road will be designed as road of category S9,5/70 and will be situated west of the city. Terrain is undulated and composed of agricultural parcels. The main purpose of this by-pass road is significant burden of region traffic.
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Urbanistické řešení vybraného prostoru Brno-Kohoutovice / Urban design of the selected area in Brno - KohoutovicePecháček, Jan January 2012 (has links)
The urban study of a selected area of the city of Brno Kohoutovice solves the existing unsuitable condition of the part of Kohoutovice near the Voříškova bus stop. A difficult area characterized by substantial building interventions of a past era and a very rugged field relief, it gave rise to a novel concept which tries, with unconventional solutions, to find the broken dialogue between the original historic buildings and socialist settlement. It attempts to define clearly the main public areas still missing here and bring logic to these areas. It divides the system of private property and public spaces. It deals with the problem of finding a solution to neighborhood full of high-rises. It intensifies the existing buildings and connects the individual parts, though separates traffic. It brings new value to the area in the form of an ecumenical center located in the unused space at a grade-separated crossroads and a newly designed head-axis which connects the old part of the village with the new development. The study also deals with the future of urbanism in the prospective period of thirty years. There was therefore some effort to engage contemporary technical and social trends, such as accommodation in mobile housing units.
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Einflüsse essentieller Fettsäuren zusammen mit konjugierter Linolsäure auf Leistung, Stoffwechsel, Entzündungsparameter und oxidativen Stress bei MilchkühenHaubold, Susanne 23 August 2021 (has links)
Einleitung: Futterrationen für Hochleistungsmilchkühe basieren häufig auf Maissilage und liefern somit nur wenig frisches Gras, was eine niedrige Zufuhr an n-3-Fettsäuren, v.a. an α-Linolensäure (ALA), bewirkt. Dies führt einerseits zu einem reduzierten Status an ALA und konjugierter Linolsäure (CLA) und andererseits zu einem hohen n-6/n-3-Verhältnis bei laktierenden Kühen.
Ziel der Untersuchungen: Das Ziel der vorliegenden Studie war es, die Einflüsse einer Supplementierung von essentiellen Fettsäuren (EFA, v.a. ALA) zusammen mit CLA auf den Fett- säurestatus, die Leistung, auf das antioxidative und inflammatorische System bei Milchkühen, die mit einer Mais-basierten Ration gefüttert wurden, in etablierter Laktation zu untersuchen und ver- schiede Stoffwechselwege, einschließlich der somatotropen Achse, näher zu beleuchten.
Tiere, Material und Methoden: Es wurden 4 Kühe (3. Laktation, 126 ± 4 Tage in Milch) in einem 4 × 4 Latin Square untersucht. Die Kühe erhielten täglich abomasale Infusionen an Kokosöl (CTRL, 38,3 g/d; v.a. gesättigte Fettsäuren), Lein- und Distelöl (EFA, 39,1 und 1,6 g/d), Lutalin® (cis-9,trans-11 und trans-10,cis-12 CLA, jeweils 4,6 g/d) oder EFA+CLA für jeweils 6 Wochen. Die initiale Dosis wurde jeweils nach 2 Wochen verdoppelt, was in 3 Dosierungen resultierte (Dosis 1, 2 und 3). Es schloss sich eine 3-wöchige Washout-Periode an. Den Kühen wurde eine Mais-basierte Ration mit einem hohen n-6/n-3-V erhältnis (11,3:1) gefüttert. Die Trockensubstanzaufnahme und die Milchleistung wurden täglich und die Milchzusammensetzung wöchentlich gemessen. Die Fettsäuremuster im Milchfett und im Blutplasma, Plasmakonzentra- tionen von Metaboliten und Hormonen sowie von Parametern des antioxidativen Systems und der Immunantwort (nur in Woche 0 und 6) wurden jeweils in Behandlungswoche 0, 2, 4 und 6 analysiert. Lebergewebe wurde zu Beginn der Studie und jeweils nach 6 Wochen Behandlung entnommen und der Energiestoffwechsel sowie Parameter des antioxidativen Systems und der Immunantwort wurden auf Ebene der Transkription untersucht. Die statistische Auswertung wurde mittels ANOVA und der MIXED Prozedur (repeated measurements) in SAS durchgeführt, wobei Behandlung, Dosis und deren Interaktion als fixe Effekte und die Laktationswoche als Kovariable dienten.
Ergebnisse: Die jeweils infundierten Fettsäuren stiegen sowohl im Plasma als auch in der Milch dosisabhängig an. Das n-6/n-3-Verhältnis des Milchfetts lag in der CTRL- und in der CLA- Gruppe höher als in den beiden EFA-Gruppen. Die Energie-korrigierte Milch und das Milchfett nahmen dosisabhängig in den beiden CLA-Gruppen ab. Es gab einen Trend für eine höhere Energiebilanz in der CLA-Gruppe. Der Milchproteingehalt war in den beiden CLA-Gruppen niedriger als in der CTRL-Gruppe und die Milchharnstoffkonzentration sank in beiden CLA- Gruppen dosisabhängig ab. Die Citratkonzentration in der Milch stieg dosisabhängig in der CLA- Gruppe an. Die Aktivität der Glutathionperoxidase im Blutplasma war in der CTRL-Gruppe ge- ringer als in der EFA-Gruppe und die Plasmakonzentration von β-Carotin stieg in beiden EFA- Gruppen mit der Dosis an. Die Plasmakonzentration des Gesamtcholesterols stieg dosisabhängig in allen Gruppen, außer der CLA-Gruppe, an. Die Plasmakonzentration des High-density- lipoprotein-Cholesterols stieg in der CTRL-Gruppe an und lag höher als in der EFA- und der CLA-Gruppe, während die Konzentrationen des Low-density-lipoprotein-Cholesterols dosisab- hängig in der EFA- und der EFA+CLA-Gruppe anstiegen und höher als in der CLA-Gruppe waren. Die hepatische Genexpression der 3-Hydroxy-3-methylglutaryl-CoA Synthase 1 wurde in allen Gruppen hochreguliert und lag in der EFA+CLA-Gruppe am höchsten. Die Genexpression des sterol regulatory element-binding factor 1 zeigte einen Trend für die niedrigsten Werte in den beiden EFA-Gruppen. Die Expression des leberspezifischen growth hormone receptor 1A (GHR1A) tendierte zu einer Erhöhung in der EFA+CLA-Gruppe im Vergleich zur CTRL-Gruppe. Die insulin-like growth factor I (IGF-I)-Plasmakonzentration stieg in der CLA-Gruppe an und der Plasmaspiegel des insulin-like growth factor binding protein 2 (IGFBP-2) lag in der EFA+CLA- Gruppe niedriger als in der CTRL-Gruppe. Die Albumin- und Harnstoffkonzentrationen im Plasma waren in der CLA-Gruppe niedriger als in der CTRL-Gruppe.
Schlussfolgerungen: Die Milchfettdepression und das erhöhte Milch-Citrat weisen auf eine redu- zierte de-novo-Fettsäuresynthese und einen verbesserten oxidativen Status in der Milch durch CLA-Supplementierung hin. Weder CLA- noch EFA-Gaben zeigten eindeutige Wirkungen auf den Entzündungsstatus bei den Milchkühen. Die Supplementierung von EFA und CLA hatte Ein- fluss auf den Cholesterol- und den Fettstoffwechsel sowie deren Regulierung. Der erhöhte IGF- I-Plasma-Spiegel in der CLA-Gruppe sowie die niedrigere IGFBP-2-Plasmakonzentration und die erhöhte Genexpression des GHR1A in der Leber der EFA+CLA-Gruppe deuten auf stimulierende Effekte auf die somatotrope Achse hin. Weiterhin scheinen CLA-Gaben auch den Proteinstoffwechsel von Milchkühen zu beeinflussen.
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Defining the Gut-Mammary Gland-Secretory IgA Axis in Porcine Epidemic Diarrhea Virus Infected Gilts and its Impact on Lactogenic Immune Protection of Neonatal Suckling PigletsLangel, Stephanie Mary Neal January 2018 (has links)
No description available.
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Předoperační plánování rekonstrukčních operací přednoží / Preoperative planning of the reconstructive surgery of the forefootKlouda, Jan January 2021 (has links)
Univerzita Karlova v Praze 1. lékařská fakulta Postgraduální doktorský program v biomedicíně Studijní obor: Experimentální chirurgie Disertační práce MUDr. Jan Klouda: Preoperative planning of the reconstructive surgery of the forefoot Abstract The presented thesis describes a study aimed at the change of articular surface position in the region of first metatarsophalangeal joint after operative reconstruction due to hallux valgus deformity, done by performing Lapidus arthrodesis. The study evaluates a cohort of patients, who underwent surgery in Department of Orthopaedics, First Faculty of Medicine, Charles University in Prague at Motol University Hospital from 2010 to 2015. The results and clinical implications of the aforementioned retrospective study were published in 2018. The observers evaluated several defined angles on preoperative and postoperative radiographs of the forefoot. The angles were thoroughly selected with regard to the exact representation of first metatarsophalangeal joint articular surface position in relation to the axes of first metatarsal and the whole forefoot. The executed measurements allowed us to assess the overall effectivity of the performed surgery in deformity correction, as well as to describe possible pitfalls and disadvantages resulting from the change of structural...
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Ukrajinská geopolitika ve 20. a 21. století. / Ukrainian geopolitics in the 20th and 21st centuriesHliba, Ihor January 2022 (has links)
Knowledge of a country's national geopolitics is the key to understanding the state in all its political forms. Therefore, this thesis is devoted to the Ukrainian geopolitics of the 20th - 21st century. In it we described the main concepts and opinions of Ukrainian geopoliticians. Our goal was to learn more about the theoretical foundations of Ukrainian geopolitics as it was in the 20th century and to see its further development in the 21st century. We tried to describe as fully as possible the views of Ukrainian geopoliticians and note the peculiarities of their thinking. We also analysed possible factors influencing the geopolitical vision of Ukrainians in the 20th and 21st centuries. This thesis is divided into three major parts and conclusions. The first chapter presents the main geopolitical concepts that emerged in the first half of the 20th century and their classification. In the second chapter, we focused more on those concepts that concerned the Black Sea region. In the third chapter, we presented the main and interesting concepts of Ukrainian geopolitics of the 21st century. Conclusions are an important analytical element of our work
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Slovinské národní divadlo v Lublani / Slovene National Theatre in LjubljanaMachara, František January 2009 (has links)
The city block, which we use for a creating our architectural rendering of new Natoinal theatre building is situated on one othe hystorical city axis in the centre of Slovenian capital city Ljubljana. This axis was create in time of old romanian historical setlement. and pases during our cityblock. this is one of the most important moment , I was inspirated with...
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Prezentační pavilon Papírny WANEMI, a.s. v Zábřehu / Presentation pavilion of WANEMI, a.s. paper-mill in ZábřehSvoboda, Petr January 2010 (has links)
combination of yellow and green
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Approaches to the parametric modeling of hormone concentrations: Inference on acute secretory activity of the hypothalamic-pituitary-adrenal axisMiller, Robert 15 July 2013 (has links)
Transdisciplinary research in general, and stress research in particular, requires an efficient integration of methodological knowledge of all involved academic disciplines, in order to obtain conclusions of incremental value about the investigated constructs. From a psychologist’s point of view, biochemistry and quantitative neuroendocrinology are of particular importance for the investigation of endocrine stress systems (i.e., the HPA axis, and the SNS). Despite of their fundamental role for the adequate assessment of endocrine activity, both topics are rarely covered by conventional psychological curriculae. Consequently, the transfer of the respective knowledge has to rely on other, less efficient channels of scientific exchange. The present thesis sets out to contribute to this exchange, by highlighting methodological issues that are repeatedly encountered in research on stress-related endocrine activity, and providing solutions to these issues.
As outlined within this thesis, modern stress research tends to fall short of an adequate quantification of the kinetics and dynamics of bioactive cortisol. Cortisol has gained considerable popularity during the last decades, as its bioactive fraction is supposed to be reliably determinable from saliva and is therefore the most conveniently obtainable marker of HPA activity. However, a substantial fraction of salivary cortisol is metabolized to its inactivated form cortisone by the enzyme 11β-HSD2 in the parotid glands, which is likely to restrict its utility. Although the commonly used antibody-based quantification methods (i.e. immunoassays) might “involuntarily” qualify this issue to some degree (due to their inherent cross-reactivity with matrix components that are structurally-related to cortisol; e.g., cortisone), they also cause differential within-immunoassay measurement bias: Salivary cortisone has (as compared to salivary cortisol) a substantially longer half-life, which leads to an overestimation of cortisol levels the more time has passed since the onset of the prior HPA secretory episode, and thus tends to distort any inference on the kinetics of bioactive cortisol. Furthermore, absolute cortisol levels also depend on the between-immunoassay variation of antibodies. Consequently, raw signal comparisons between laboratories and studies, which are favorable as compared to effect comparisons, can hardly be performed. This finding also highlights the need for the long-sought standardization of biochemical measurement procedures. The presumably only way to circumvent both issues is to rely on quantification of ultrafiltrated blood cortisol by mass-spectrometric methods.
Being partly related to biochemical considerations with research on HPA activity, a second topic arises concerning the operationalization of the construct itself: In contrast to the simple outcome measures like averaged reaction times, inclined stress researchers can only indirectly infer on the sub-processes being involved in HPA activity from longitudinally sampled hormone concentrations. HPA activity can be quantified either by (a) discrete-time, or by (b) continuous-time models. Although the former is the most popular and more convenient approach (as indicated by the overly frequent encounter of ANOVAs and trapezoidal AUC calculations in the field of psychobiological stress research), most discrete time models form rather data-driven, descriptive approaches to quantify HPA activity, that assume the existence of some endocrine resting-state (i.e., a baseline) at the first sampling point and disregard any mechanistic hormonal change occurring in between all following sampling points. Even if one ignores the fact, that such properties are unlikely to pertain to endocrine systems in general, many generic discrete time models fail to account for the specific structure of endocrine data that results from biochemical hormone measurement, as well as from the dynamics of the investigated system. More precisely speaking, cortisol time series violate homoscedasticity, residual normality, and sphericity, which need to be present in order to enable (mixed effects) GLM-based analyses. Neglecting these prerequisites may lead to inference bias unless counter-measures are taken.
Such counter-measures usually involve alteration of the scale of hormone concentrations via transformation techniques. As such, a fourth-root transformation of salivary cortisol (being determined by a widely used, commercially available immunoassay) is shown to yield the optimal tradeoff for generating homoscedasticity and residual normality simultaneously. Although the violation of sphericity could be partly accounted for by several correction techniques, many modern software packages for structural equation modeling (e.g., Mplus, OpenMX, Lavaan) also offer the opportunity to easily specify more appropriate moment structures via path notation and therefore to relax the modeling assumptions of GLM approaches to the analysis of longitudinal hormone data.
Proceeding from this reasoning, this thesis illustrates how one can additionally incorporate hypotheses about HPA functioning, and thus model all relevant sub-processes that give rise to HPA kinetics and dynamics. The ALT modeling framework being advocated within this thesis, is shown to serve well for this purpose: ALT modeling can recover HPA activity parameters, which are directly interpretable within a physiological framework, that is, distinct growth factors representing the amount of secreted cortisol and velocity of cortisol elimination can serve to interpret HPA reactivity and regulation in a more unambiguous way, as compared to GLM effect measures. For illustration of these advantages on a content level, cortisol elimination after stress induction was found to be elevated as compared to its known pharmacokinetics. While the mechanism behind this effect requires further investigation, its detection would obviously have been more difficult upon application of conventional GLM methods. Further extension of the ALT framework allowed to address a methodological question, which had previously been dealt with by a mere rule of thumb; what’s the optimal threshold criterion, that enables a convenient but comparably accurate classification of individuals whose HPA axis is or is not activated upon encountering a stressful situation? While a rather arbitrarily chosen baseline-to-peak threshold of 2.5 nmol/L was commonly used to identify episodes of secretory HPA activity in time series of salivary cortisol concentrations, a reanalysis of a TSST meta- dataset by means of ALT mixture modeling suggested that this 2.5 nmol/L criterion is overly conservative with modern biochemical measurement tools and should be lowered according to the precision of the utilized assay (i.e., 1.5 nmol/L).
In sum, parametric ALT modeling of endocrine activity can provide a convenient alternative to the commonly utilized GLM-based approaches that enables the inference on and quantification of distinct HPA components on a theoretical foundation, and thus to bridge the gap between discrete- and continuous-time modeling frameworks. The implementation of the outlined modeling approaches by the respective statistical syntaxes and practical guidelines being derived from the comparison of cortisol assays mentioned above, are provided in the appendix of the present thesis, which will hopefully help stress researchers to directly quantify the construct they actually intend to assess.:1. Introduction
2. The hypothalamus-pituitary-adrenal (HPA) axis
3. Induction and quantification of HPA activity
4. The pitfalls of SCC measurement
5. Creating normality and homoscedasticity: GLM-based analyses
6. Relaxing sphericity: moment structure analyses
7. General conclusion
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Påverkas EKG av hur man placerar extremitetsavledningarna?Jawad, Rihab January 2022 (has links)
Abstrakt: Inom vården används olika undersökningsmetoder för att kunna utvärdera hjärtats funktion. Elektrokardiografi (EKG) är en av de metoderna. EKG har många fördelar exempelvis är metoden tillgänglig, billig, riskfri och icke-invasiv. Vid vilo-EKG placeras tio elektroder på bestämda positioner på kroppen vilka ger upphov till 12 avledningar. Avledningarna indelas i två grupper: bröstavledningar och extremitetavledningar. Studiens syfte var att undersöka närmare om det finns skillnader som påverkar bedömningen av EKG:et i P- vågor, QRS- komplex och hjärtats elektriska axel (QRS el-axel) i extremitetavledningar mellan standardkoppling och två andra omkopplingar. Trettio frivilliga deltagare inkluderades i denna studie. För samtliga deltagare registrerades tre EKG:n. I det första EKG:et kopplades extremitetselektroderna enligt standardkopplingen. I det andra EKG:et kopplades armelektroder på höger och vänstra överarmar, vänster benelektroden kopplades på lårbenet. Det tredje EKG:et kopplades enligt Mason- Liker, förutom att höger benelektrod inte omplacerades. Vid alla tre EKG:na placerades bröstelektroderna enligt standardkopplingen. Förändringar i duration, amplitud, och QRS el-axel mellan dessa EKG:n undersöktes. Resultaten av studien visade att det inte fanns någon signifikant skillnad mellan dessa kopplingar i duration och amplitud i QRS-komplexen. Inte heller i durationen på P-vågen. Däremot påvisades en signifikant skillnad i QRS el-axel samt i amplitud på P-vågen för den ena omkopplingen.
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