Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv., 2004. / Härtill 4 uppsatser.

Lic.-avh. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 2 uppsatser.

Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009. / Committee Chair: van Rooijen, Wilfred; Committee Member: Hertel, Nolan; Committee Member: Stacey, Weston

Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (p. 126-132).

Thesis (M.S. in Physics)--Naval Postgraduate School, March 2010. / Thesis Advisor(s): Rodeback, G. W. "January 1962." Description based on title screen as viewed on June 2, 2010. DTIC Descriptor(s): Research Reactors, Hafnium, Half Life, Pneumatic Equipment, Measuring Instruments, Reactor Cores, Shielding, Detection, Gamma Emission, Computer Programming, Radioactive Isotopes, Radioactive Decay, Mixtures, Scintillation Counters, Isotopes, Least Squares Method. DTIC Identifier(s): AGN-201 Reactors, Fortran. Includes bibliographical references (p. 25). Also available in print.

Thesis (Master's)--University of California, Berkeley, 1959. / "Chemistry General" -t.p. "TID-4500 (15th Ed.)" -t.p. Errata sheet at end. Includes bibliographical references (p. 41-43).

SODIS (Solar Water Disinfection) é uma tecnologia simples para tratamento de água no pontode- uso, sendo uma alternativa importante para disponibilizar água em situações de emergência ou onde não há acesso à água potável. A ação concomitante entre a temperatura e a radiação ultra violeta do sol provoca a morte dos microorganismos presentes na água. Este estudo avaliou a eficiência de inativação de coliformes totais e Escherichia coli pela técnica SODIS para as águas de chuva (coletada em telhado), de poço freático e de manancial superficial (reservatório), sob as condições climáticas de verão de Porto Alegre, RS. Foram ainda, realizados ensaios para verificar se ocorreu o recrescimento dos microorganismos após 24 e 48 horas do término da exposição ao sol. Também foram determinadas as constantes de decaimento das bactérias utilizando a Lei de Chick para representar o declínio dos microorganismos. Os ensaios de SODIS foram realizados em batelada, utilizando garrafas PET transparentes de 1,5 L, expostas ao sol por um período de 6 h. O mesmo número de garrafas era mantido à sombra pelo mesmo período, como controle. As temperaturas do ar e da água e a radiação ultravioleta foram monitoradas ao longo dos ensaios. Os valores médios de remoção de concentrações de E. coli no SODIS nas amostras das águas analisadas variaram entre 98,8 a maior do que 99,99%; para coliformes totais as reduções médias nas amostras variaram entre 90,00 – 99,99%. Não houve recrescimento de microorganismos após 24 e 48 horas seguindo-se ao término da exposição solar. As constantes de decaimento para coliformes totais e E. coli foram, respectivamente, 0,2979 h-1 e 0,9397 h-1, confirmando as observações de que E. coli é mais sensível a desinfecção. Os coeficientes de determinação para a equação da Lei de Chick foram de 0,938 (E. coli) e 0,877 (coliformes totais). Os resultados da pesquisa indicam que as águas de chuva e de poço freático tratadas com SODIS atingiram os padrões microbiológicos recomendados pela Organização Mundial da Saúde, o que não ocorreu com as amostras de água do reservatório superficial estudado. / SODIS (Solar Water Disinfection) is a simple techhnology for point-of-use drinking water treatment, and can be used during emergencies or in sites without running water. The joint action of high temperature and ultraviolet radiation causes the die-off of microrganisms. This study evaluated the removal of total coliforms and Escherichia coli using SODIS to disinfect water from rain (collected in roofs), from well and from surface water (reservoir) under the climate conditions of Porto Alegre, RS. Essays were also conducted to see if bacteria regrowth occurred after 24 and 48 h after the end of the SODIS test. In addition, bacterial decay coefficients were calculated using the Chick´s Law as model. SODIS essays were performed in batch reactors using 1.5 L transparent PET bottles exposed to the sunlight for 6 h.The same number of bottles were kept in the shadow, as a control. Air and water temperatures and ultraviolet radiation were monitored hourly. E. coli mean removals in samples from the three sources of water varied between 98,8% to greater than 99,99%. The mean reductions for total coliforms varied between 90.0% to 99.99%. Microorganism regrowth was not observed after 24 and 48 h. Decay coefficients for coliforms and E. coli were, respectively, 0.2979 h-1 e 0.9397 h-1, confirming the observation that E. coli is more sensitive than total coliforms to SODIS. Coefficients of determination for Chick´s Law equation were 0.938 (E. coli) and 0.877 (total coliform). The results from this research indicate that water from rain and well , but not reservoir, achieved the World´s Health Organization drinking water guidelines for drinking water with low risk of disease acquisition.

Regular development of our teeth is the result of reciprocal induction processes with continual development stages. The non-interrupted development of the organism is the basic precondition of healthy dental tissues. It is, therefore, necessary to be aware of the fact that everybody takes on full responsibility for their own health. If we want to have clean and healthy teeth without tooth ache, oulitis and other problems we must take proper dental care. Tooth decay is the most widespread disease affecting the humankind from of old and proper dental care is, therefore, very important. Deteriorating dental tissues result in tooth decay and have various speed and intensity. Tooth decay affects tooth enamel, get to dental pulp and consequently may cause neuritis the result of which is prolonged pain. In the worst case, abscess may appear. The consequences may become the source of protracted disorders of permanent teeth development. Stomatologists can introduce to us the basics of proper dental care. The first visit at the dentist is recommended before a problem appears. If some problems occur it is necessary to visit the dentist sooner, then the regular preventive exams follow. At least twice a year, we should undergo preventive checkups. Regular monitoring of dental health is important especially for the early identification of undesirable changes in our teeth and gums. Relationship between the dentist and child is also very important. Factors that are important for the prevention of teeth damage are motivation, suitable diet, physical condition, physical education, regular mouth hygiene performed with the use of chemical and mechanical applications. Using of fluoride, changes in life style, suitable eating habits and hygiene habits are also important. If a person develops bad eating habits at a young age the risk tooth decay is becoming more probable. Unhealthy nutrition causes metabolism disorders that result in the increased occurrence of tooth decay and mucosa disease in oral cavity. The nutrition composition is important also for the mineralization and development of hard adenoblasts. Not balanced nutrition leads to the poor development of man and, therefore, to the easier occurrence of the tooth decay. Most serious problems are caused by sugars as bacteria use it as a source, and acids as the subsequent products diminish tooth enamel, dentine or dental pulp. Alcohol, drugs and smoking are counted among other risk factors with negative influence on dentition. Eating disorders are the opposite of healthy and correct eating habits. They are often encountered in diseases connected mainly with lack of appetite. The excessive intake of food occurs especially in obese children. Strengthening of dental tissues resistance, supporting the mineralization process and protection against the bacteria creation is supported by fluorine. For the healthy development of tissues the intake of calcium, phosphor, proteins, minerals and vitamins is important. A very important part of the rational nutrition represent milk and cheese. Pregnant women and nursing mothers especially should follow an appropriate diet. Apart from others consequences, the nutrition structure influences the composition and amount of saliva. Chewing of gum that increases the production of saliva serves also to the teeth cleaning and balances the mouth pH. Chewing can even be better than tooth brushing with toothpaste. Teeth are the symbol of energy and vital force. Poor teeth show lack of immunity and represent the sign of lowering vitality.

The Daya Bay experiment is designed to precisely measure short-baseline disappearance of reactor antineutrinos from reactor cores at the Daya Bay nuclear power plant complex in the Guangdong Province of China. It pre- sented the most precise measurements of oscillation parameters sin2 2θ13 = 0.084 ± 0.005 and |∆m2 ee| = (2.42 ± 0.11) × 10−3 eV2 . Background to the antineutrino signals is mainly created by cosmic muons and is effectively suppressed by use of water Cherenkov and RPC muon detectors. This thesis describe testing of RPC detectors prior to their installation at the experi- mental site. Part of the cosmic muons stop in the experiment's antineutrino detectors, and they decay or are captured by 12 C producing 12 B. Isotope 12 B contribute to accidental background. Rates of muon decays in the detectors are estimated in the thesis. The experiment can register electron antineutri- nos from supernova with expected signals around 20 MeV. Energy scale of the detectors at 53 MeV is determined.

In order to liquidate a large position in an asset, investors face a tradeoff between price volatility and market impact. The classical approach to this problem is to model volatility via a Brownian motion, and separate price impact into its permanent and temporary components. In this thesis, we consider two variations of the Chriss-Almgren model for temporary price impact. The first model investigates the infinite-horizon optimal liquidation problem in a market with float-dependent, nonlinear temporary price impact. The value function of the investor’s basket and the optimal strategy are characterized in terms of classical solutions of nonlinear parabolic partial differential equations. Depending on the price impact parameters, liquidation may require finite or infinite time. The second model considers time-varying market depth, in that intense trading increases temporary price-impact, which otherwise reverts to a long-term level. We find the optimal execution policy in a finite horizon for an investor with constant risk aversion, and derive the solution using calculus of variation techniques. Although the model potentially allows for price manipulation strategies, these policies are never optimal. We study the non time-constrained case as a limit to the finite-horizon case and explain the solution through a quasi-linear PDE.