Construction Design of the Lifting Platforms for Wheelchair Users

Práce se zabývá konstrukčním návrhem zdviže do venkovního prostředí, určené pro imobilní osoby na vozíčku. Úvod se zabývá obecnou problematikou a rozdělení zdvihacích zařízení. Následuje rešerše, kde jsou zmíněny zdviže, které již jsou na trhu dostupné a mohou být pro práci inspirací. Další kapitolou je sestavení požadavkového listu a návrh variant řešení. Na základě požadavkového listu byla z těchto variant vybrána optimální varianta, která je dále v práci detailněji specifikována a propočítána. V poslední fázi práce byla vypracována technická dokumentace zdviže.The thesis deals with the construction design of the elevation into an outdoor environment designed for immobile persons. Introduction deals with the general issue and the distribution of lifting devices. Following chapter is about researches, where are elevators which are already available on the market and can be inspirational. The requirement list and main design solutions are made in next chapter. Based on requirement list, the optimal variant was selected from these variants, which is specified and calculated further in the work. At the last stage of the work the technical documentation of the lift was developed.354 - Katedra robotikydobř

Economic Development and Social Development. Socio‑cultural Aspects of Fertility Changes and their Consequences

Thesis: Present‑day radical fertility changes are determined by socio‑cultural factors and will have consequences for the economy and its development potential. Current changes in the fertility rate in Poland are the subject of many discussions and arguments. It means that, among the challenges for researchers, firstly, they have to understand the background to this issue and identify the factors influencing procreative decisions. Secondly, they should demonstrate how population growth changes and will change society, and the economy in particular. Our paper analyzes the mentioned research problem by engaging tools from sociology and cultural studies to examine the influence of norms, values, beliefs, attitudes and behaviours on the changing level of birth rate and its economic consequences for the current and future functioning of the social order. The purpose of the analyses is to deepen and compare the results of findings from such disciplines as demography, statistics and economics, and present them against a background of socio‑cultural transformations, which seem to be very important in the context of Polish females and males making procreative decisions. Additionally, the paper presents links between fertility and economic development, which often seem to be ignored or underestimated.The “Annales. Ethics in Economic Life” is affiliated and co-financed by the Faculty of Economics and Sociology of the University of Lodz

Engineering Design of Two-Wheel Mobile Robot

Import 23/07/2015Bakalářská práce se zabývá konstrukčním návrhem dvoukolového mobilního robotu. V úvodu jsou vysvětleny základní pojmy. V další kapitole jsou vypracovány varianty řešení, tyto varianty jsou vytvořeny jen jako koncepty, ne jako výsledné varianty. Z těchto konceptů je vybrána optimální varianta a jsou provedeny nutné návrhové výpočty a úprava konstrukce na finální verzi. V poslední řadě je zvolena elektronika senzorů a řízení. V závěru je provedena cenová kalkulace. Model robotu a technické výkresy jsou zhotoveny v programu Creo Parametric.Bachelor thesis deals with the structural design of two-wheel mobile robot. The introduction explains the basic concepts. In the next chapter are developed alternative variant, these variants are created only as concepts, not as a final option. From these concepts are selected optimum option and will makes the necessary design calculations and finish construction on the final version. In the last row are selected, sensors and control electronics. At the end is price calculating. Model of the robot and technical drawings are made in the program Creo Parametric.354 - Katedra robotikydobř

Srovnávání předvídatelnosti metod LSTM a Random Forest na akciích z různých regionů a s malou kapitalizací

The following thesis focuses on using machine and deep learning on predicting small-cap stock index returns. Namely, Random forest and LSTM models are tested on indices from different regions, which are Russell 2000, FTSE Smallcap, Nifty Smallcap 100, S&P/AXS Small Ordinaries, and B3 Smallcap Index. By writing this thesis I want to emphasise possible benefits that come with machine learning implementation in small-cap stocks indices analysis, and show which method is better. The R2 , which was used as the main metric, indicates that LSTM performs better than Random forest for every index. Indexwise the best results was achieved by the FTSE Smallcap with 61.1% R2 . We can also see some possible improvements in results by optimizing each index separately, or by including more features that are not that easy to get. JEL Classification C01, C45, C49, C51, C53 C67 C88 Keywords excess returns, LSTM, random forest, machine learning, deep learning, forecasting, small-cap stocks, small-cap index, financial market, neural network Title Comparison of LSTM and random forest on forecasting Small-cap stocks from different regionsTato práce poukazuje na možnost použití strojového a hlubokého učení pro predikování výnosů indexů akcií s malou kapitalizací. V práci je testována přesnost Random forest a LSTM modelů na indexech akcií z různých regionů, přesněji Russell 2000, FTSE Smallcap, Nifty Smallcap 100, S&P/AXS Small Ordinaries, a B3 Smallcap Index. Cílem této práce je zdůraznit výhody začlenění strojového a hlubokého učení do predikovaní výnosů indexů akcií s malou kapitalizací, a vysvětlit, který z modelů dosahuje lepších výsledků. R2 , které bylo použito jako hlavní metrika, ukazuje, že LSTM funguje lépe než Random forest pro každý z testovaných indexů. Nejlepších výsledků dosáhl index FTSE Smallcap s 61.1% R2 . Práce následně obsahuje možné postupty pro zlepšení výsledků například optimalizace modelů pro každý index zvlášť, nebo přidání více indikátorů, které není tak jednoduché získat, do našeho data-setu. Klasifikace JEL C01, C45, C49, C51, C53 C67 C88 Klíčová slova strojové učení, hluboké učení, LSTM, random forest, předvídání, akcie s malou kapitalizací, indexy akcí s malou kapitalizací, finanční trhy, neuronové sítě Název práce Srovnávání předvídatelnosti metod LSTM a Random Forest na akciích z různých regionů a s malou kapitalizacíInstitute of Economic StudiesInstitut ekonomických studiíFaculty of Social SciencesFakulta sociálních vě

Designing for web and for printed medium: a comparative study

Ankara : The Department of Graphic Design and the Institute of Fine Arts of Bilkent University, 2001.Thesis (Master's) -- Bilkent University, 2001.Includes bibliographical references.A thesis comparing two methods of design; the web design and design prepared for the printed medium, covering the physical differences between the two, the methods and techniques of content presentation in both cases, as well, as the perception of the design from the reader’s point of view. Includes a case study.Michalski, JakubM.S

Inflammation and hypoxia in atherosclerosis, coronary artery disease, and heart failure

Inflammation is a process that occurs after tissue damage or counteract infection. It is a complex reaction involving various cells, proteins (chemokines, acute-phase proteins) and other factors. The precise understanding of the mechanisms affecting the distribution of inflammatory cells and their modulators in areas of inflammation may have a crucial role in the development of strategies blocking inflammatory processes. Hypoxia leads to deprivation of oxygen and when it develops, various mechanisms come into action to alleviate any consequences that it might cause. Hypoxia inducible factor (HIF) is one of the most important factors involved in the response to hypoxia. Recent studies provide a better understanding of both, inflammation and hypoxia, in the development of atherosclerosis and various diseases in the spectrum of cardiology

Self-Assessed Personality Traits and Adherence to the COVID-19 Lockdown

Introduction: The COVID-19 pandemic, caused by the SARS-CoV-2 coronavirus, has forced all countries affected by it to introduce quarantine and isolation to prevent the spread of the virus, as well as masking and distancing. Not everyone is equally willing to follow the rules related to limit the extent of the coronavirus epidemic. This might be connected with personality traits, especially openness, positive attitude, and optimism. Materials and Methods: An online survey was created and completed by participants in April–May 2020. Self-assessment of personality traits and adherence to lockdown recommendations were assessed. A total of 7404 participants took part in the study, mainly from Poland (83.6%) and Italy (12.7%). Univariate and multivariate regression analysis was performed. Results: The participants were divided into groups depending on the degree of compliance with the lockdown rules. In the multivariate analysis, variables that increased the odds for stricter lockdown compliance were temporary work suspension OR 1.27 (95% CI 1.10–1.48), income level “we can’t handle this situation” OR 1.67 (95%CI 1.20–2.33), and junior high school education OR 1.68 (95% CI 1.13–2.50). Other significant factors included age and place of residence. Each point of self-assessed sociability OR 1.07 (95% CI 1.00–1.13) also increased the likelihood of adhering to lockdown rules. Conclusions: Taking the basic demographic characteristics as well as working and health environment conditions traits into account may be helpful when forecasting epidemiological compliance during a pandemic, as well as in other public health tasks. The key role of self-assessed personality traits was not confirmed in this study. Reliability of the results is limited by significant disproportions in the size of the study groups

Cerebral palsy and obstetric-neonatological interventions

Cerebral palsy is a disease that puts a great mental burden on caregivers and generates very high social costs. Children withCP require many years of rehabilitation and medical care. The etiology of the disease is undoubtedly multifactorial, and thepathogenesis is associated with focal damage to the central nervous system. One can find descriptions of well-documentedinterventions in the literature that reduce the risk of CP in certain groups of pregnant and neonatal patients, and interventionsthat have a potentially protective effect. In this review, we have analyzed the available literature in terms of prenataland postnatal interventions that may have an impact on reducing the incidence of this condition in children

Perceived stress and pandemic-associated risk factors in high-risk alcohol consumers during the third wave of the COVID-19 pandemic

Background As a severe and prolonged stressor, the COVID-19 pandemic has contributed to development or exacerbation of mental disorders. For substance use disorder, the link between stress and alcohol consumption is well established. However, there have been conflicting findings in the context of the pandemic. The aim of this study was to characterize the group of high-risk alcohol consumers in terms of perceived stress and potential stressors during the third wave of the pandemic. Participants and procedure Adult Polish men (N = 295) from the Tricity metropolitan area participated in the study. They were subdivided into high-risk (n = 104) and low-risk (n = 191) alcohol consumers based on their self-reported weekly alcohol consumption. A demographic survey (including COVID-19 vaccination status), the Perceived Stress Scale (PSS-10) and an original questionnaire measuring causes of concern were used. Results Overall PSS-10 results did not differ significantly between high-risk and low-risk alcohol consumers (18.40, 17.50, respectively, p = .185). However, the percentage distribution of perceived stress showed lower incidence of low and high levels of stress in high-risk than in low-risk alcohol consumers (9.6%, 2.9% vs. 25.7%, 6.8%, p = .001). High-risk alcohol consumers reported no pandemic-related worries more often than low-risk consumers (46.2% vs. 5.2%, p < .001), but at the same time 67.3% of them named at least one pandemic-related stressor. High-risk alcohol consumers also showed less concern about the situation on the labor market (19.2% vs. 29.3%, p < .001). Limited access to medical services and other people’s attitudes to the pandemic were common stressors in both groups, with high-risk alcohol consumers showing more indifference to the latter. Conclusions High-risk and low-risk alcohol consumers have been clearly impacted by pandemic-related factors. The protective effect of alcohol is debatable, given the high prevalence of medium and high stress levels among high-risk alcohol consumers. It appears that the pandemic and associated restrictions posed such a significant risk for distress escalation that they remained unrelated to the pattern of alcohol consumption or its alteration.Background As a severe and prolonged stressor, the COVID-19 pandemic has contributed to development or exacerbation of mental disorders. For substance use disorder, the link between stress and alcohol consumption is well established. However, there have been conflicting findings in the context of the pandemic. The aim of this study was to characterize the group of high-risk alcohol consumers in terms of perceived stress and potential stressors during the third wave of the pandemic. Participants and procedure Adult Polish men (N = 295) from the Tricity metropolitan area participated in the study. They were subdivided into high-risk (n = 104) and low-risk (n = 191) alcohol consumers based on their self-reported weekly alcohol consumption. A demographic survey (including COVID-19 vaccination status), the Perceived Stress Scale (PSS-10) and an original questionnaire measuring causes of concern were used. Results Overall PSS-10 results did not differ significantly between high-risk and low-risk alcohol consumers (18.40, 17.50, respectively, p = .185). However, the percentage distribution of perceived stress showed lower incidence of low and high levels of stress in high-risk than in low-risk alcohol consumers (9.6%, 2.9% vs. 25.7%, 6.8%, p = .001). High-risk alcohol consumers reported no pandemic-related worries more often than low-risk consumers (46.2% vs. 5.2%, p < .001), but at the same time 67.3% of them named at least one pandemic-related stressor. High-risk alcohol consumers also showed less concern about the situation on the labor market (19.2% vs. 29.3%, p < .001). Limited access to medical services and other people’s attitudes to the pandemic were common stressors in both groups, with high-risk alcohol consumers showing more indifference to the latter. Conclusions High-risk and low-risk alcohol consumers have been clearly impacted by pandemic-related factors. The protective effect of alcohol is debatable, given the high prevalence of medium and high stress levels among high-risk alcohol consumers. It appears that the pandemic and associated restrictions posed such a significant risk for distress escalation that they remained unrelated to the pattern of alcohol consumption or its alteration