Creation of an Investment Portfolio for Collective Investment Fund

Tato bakalářská práce je zaměřena na výběr akciových titulů na základě fundamentální analýzy. V teoretické části je vysvětlena struktura investičního fondu a fond kolektivního investování v soudobých podmínkách České republiky a seznámení se současnou situací na kapitálovém trhu. V praktické části jsou vybrané akciové tituly analyzovány pomocí metod mezipodnikového srovnávání a bankrotního modelu. V závěru je vlastní návrh na zlepšení struktury portfolia pro management fondy.This bachelor thesis is focused on the selection of stocks based on a fundamental analysis. In the theoretical part is explained the structure of the investment fund, the collective investment fund in the current conditions of the Czech Republic and the current situation of the capital market. The selected stocks are analyzed by using intercompany comparation and bankruptcy model. In the end of the bachelor thesis is a portfolio recommendation created for the management of a collective investment fund.

Stock Returns Predictability and Market Timing Trading : Evidence from Malaysian Stock Market

This study aims to re-examine the predictability of Malaysian stock returns and investigates whether the predictability can be exploited to earn abnormal returns using market timing strategy with consideration of transaction costs. Using quarterly and monthly data covering the period from January 1987 to December 2010, the regression results shows that KLCI excess returns are statistically related to change in lending interest rate, exchange rate, money supply and industrial production index. Recursive predictions derived from the optimal regression models are only capable of correctly predicting the positive signs of actual excess returns, whereas the forecasting accuracy of actual negative returns is very low, especially under quarterly trading basis. The results also indicate that the market timing strategy constructed on the basis of the recursive predictions only dominate the naïve buy-and-hold strategy in monthly trading frequencies. Particularly, under 0% and 0.8% transaction costs scenarios, the strategy provides higher returns and less riskiness as compared to the benchmark. However, under 1.4% transaction costs scenario, the market timing strategy does not deliver higher average returns than buy-and-hold strategy

The Stories of Snake Grooms in Vietnamese Folktales

In Vietnam, many stories tell about the marriage of the snake and the human where the snakes appeared as grooms. These stories developed in various patterns, but most of them end with a happy ending where the snake and the human woman have a happy life. These marriages represent the Vietnamese dreams of an ideal marriage and their view of animals and nature. Snakes symbolize perfect marriage partners, and the marriage with snakes represents a dream of getting closer to nature so that the Vietnamese can live a better life. These stories also reflect the Vietnamese idea that bad people learn a lesson for themselves, contrary to the fact that good people can always have a good ending.中谷伸生教授古稀記念

Challenges for engineering students working with authentic complex problems

Engineers are important participants in solving societal, environmental and technical problems. However, due to an increasing complexity in relation to these problems new interdisciplinary competences are needed in engineering. Instead of students working with monodisciplinary problems, a situation where students work with authentic complex problems in interdisciplinary teams together with a company may scaffold development of new competences. The question is: What are the challenges for students structuring the work on authentic interdisciplinary problems? This study explores a three-day event where 7 students from Aalborg University (AAU) from four different faculties and one student from University College North Denmark (UCN), (6th-10th semester), worked in two groups at a large Danish company, solving authentic complex problems. The event was structured as a Hackathon where the students for three days worked with problem identification, problem analysis and finalizing with a pitch competition presenting their findings. During the event the students had workshops to support the work and they had the opportunity to use employees from the company as facilitators. It was an extracurricular activity during the summer holiday season. The methodology used for data collection was qualitative both in terms of observations and participants’ reflection reports. The students were observed during the whole event. Findings from this part of a larger study indicated, that students experience inability to transfer and transform project competences from their previous disciplinary experiences to an interdisciplinary setting

A Novel Thermostable Cytochrome P450 from Sequence-Based Metagenomics of Binh Chau Hot Spring as a Promising Catalyst for Testosterone Conversion

Biotechnological applications of cytochromes P450 show difficulties, such as low activity, thermal and/or solvent instability, narrow substrate specificity and redox partner dependence. In an attempt to overcome these limitations, an exploitation of novel thermophilic P450 enzymes from nature via uncultured approaches is desirable due to their great advantages that can resolve nearly all mentioned impediments. From the metagenomics library of the Binh Chau hot spring, an open reading frame (ORF) encoding a thermostable cytochrome P450—designated as P450-T3—which shared 66.6% amino acid sequence identity with CYP109C2 of Sorangium cellulosum So ce56 was selected for further identification and characterization. The ORF was synthesized artificially and heterologously expressed in Escherichia coli C43(DE3) using the pET17b system. The purified enzyme had a molecular weight of approximately 43 kDa. The melting temperature of the purified enzyme was 76.2 ◦C and its apparent half-life at 60 ◦C was 38.7 min. Redox partner screening revealed that P450-T3 was reduced well by the mammalian AdR-Adx4-108 and the yeast Arh1-Etp1 redox partners. Lauric acid, palmitic acid, embelin, retinoic acid (all-trans) and retinoic acid (13-cis) demonstrated binding to P450-T3. Interestingly, P450-T3 also bound and converted testosterone. Overall, P450-T3 might become a good candidate for biocatalytic applications on a larger scale

Nutritional status and dietary intake before hospital admission of pulmonary tuberculosis patients

Conducting research on nutritional status and dietary intake of pulmonary tuberculosis patients is essential for developing interventions in clinical nutrition practice and treatment during hospitalization, which can improve the quality of patients life. This cross-sectional descriptive study aimed to determine nutritional status and some related factors (such as geography, occupation, educational level, economic classification, etc.) of 221 patients with pulmonary tuberculosis who were examined and treated at the Respiratory Tuberculosis Department, National Lung Hospital in July 2019–May 2020. The results showed that the risk of undernutrition: According to BMI (Body Mass Index): 45.8% of patients were malnourished, 44.2% normal and 10.0% overweight/obese. According to MUAC (Mid-Upper Arm Circumference): 60.2% of patients were malnourished, 39.8% of patients were normal. According to SGA (Subjective Global Assessment): 57.9% of patients were at risk of undernutrition, of which 40.7% were at moderate risk of undernutrition and 17.2% risk of severe undernutrition. Classification of nutritional status according to serum albumin index: 50% of patients were malnourished, the rate of undernutrition of mild, moderate and severe levels was 28.9%, 17.9% and 3.2%, respectively. Most patients eat with others and eat less than four meals a day. The average dietary energy of patients with pulmonary tuberculosis in was 1242.6 ± 46.5 Kcal and 1084 ± 57.9 Kcal, respectively. 85.52% of patients did not eat enough food, 4.07% had enough, 10.41% consumed excess energy. The ratio of energy-generating substances in the diet (Carbohydrate:Protein:Lipid) was on average 54:18:28 for males and 55:16:32 for females. Most of the study population had diets that did not meet the experimental study in terms of micronutrient content. Specifically, more than 90% do not meet the requirements for magnesium, calcium, zinc, and vitamin D. The water-soluble and fat-soluble vitamins respond poorly, only about 30–40%. Selenium is the mineral with the best response rate, above 70%. Our findings revealed that the majority of the study subjects had poor nutritional status, as evidenced by diets lacking in essential micronutrients

The VATLY Radio Telescope

A small radio telescope (SRT) has been installed on the roof of the Hanoi astrophysics laboratory VATLY. It is equipped with a 2.6 m diameter mobile parabolic dish remotely controlled in elevation and azimuth and with super-heterodyne detection around the 21 cm hydrogen line. First results of observations of the Sun and of the centre of the Milky Way are presented. They demonstrate the high quality of the telescope performance and are used to evaluate lobe size, signal to noise ratios, anthropogenic interferences and measurement accuracies. Particular attention is given to the measurement of the pointing accuracy. The rich measurement programme that is now at hand is briefly sketched

Simulation of proton-induced and iron-induced extensive air showers at extreme energies

The development of extensive air showers at extreme energies is studied using a simulation model much simpler and cruder, but also more transparent and flexible, than existing sophisticated codes. Evidence for its satisfactory performance is presented. As an illustration, shower elongation rates are evaluated in the $10^{18}$ to $10^{20}$ eV region and compared with recently published data. Lateral distribution functions of both muons and electrons/photons are also briefly discussed. Reliable results are obtained in the comparison between proton-induced and iron-induced showers.Comment: 22 pages, Preprint submitted to Astroparticle Physic