Heterogeneous Network (HetNet) deployment has been considered as the main approach to boost capacity and coverage in Long Term Evolu-tion (LTE) networks in order to fulfill the huge future demand on mo-bile broadband usage. In order to study the improvement on network performance, i.e. capacity, coverage and user throughput, from pico cell densification in LTE HetNets, a network densification algorithm which determines the placement locations of the pico sites based on pathloss has been designed and applied to build several network models with different pico cell densities. The study has been taken based on a real radio network in a limited urban area using an advanced Matlab-based radio network simulator. The simulation results show that the network performance generally is enhanced by introducing more pico cells to the network.

Syftet med den här studien var att synliggöra textböckers svårighetsnivå och progression. För att kunna genomföra detta ställdes två forskningsfrågor: (i) Vilken svårighetsnivå motsvarar de granskade textböckerna? Och (ii) I vilken utsträckning ökar läromedlens komplexitet mellan låg- och mellanstadiet? I den här studien analyserades sex olika textböcker från tre olika förlag, textböcker från samma serie avsedda för årskurs 3 och 4 användes. I studien analyserades även bedömningsstöd från Skolverket för samma årskurser, bedömningsstödet fick därigenom utgöra kontrollgrupp. I studien användes en metodkombination, som nyttjade både en kvalitativ och en kvantitativ metod. Resultatet visar att det finns stora skillnader mellan textböckernas svårighetsnivå, att det finns en svårighetsökning mellan årskurs 3 och 4 men att den är diffus och svår att analysera, samt att det saknas en tydlig koppling mellan textböckernas svårighetsgrad och den som bedömningsstödet anser vara godtagbar för årskurserna. Nyckelord: Läromedel, progression, lågstadiet, lexical coverage

This study examines and analyzes the treatment accorded Alger Hiss by the American press from August 3, 1948, to January 25, 1950. Information sources included the forty-one newspaper articles submitted by Hiss's attorneys in their motion for a change of venue at the second trial, and those sections of books, newspapers, and magazine articles relative to the press's coverage of the case. Six chapters cover the changing press image of Hiss, newspaper articles submitted in evidence, and the relationships of Richard M. Nixon and Whittaker Chambers to the press. The study analyzes historically the differing attitudes toward Hiss and concludes that since the press reflected the nation's fears that its leaders had Communist ties, press coverage of the case lessened Hiss's chances for a fair trial.

The aim of this thesis is to examine the relationship between union’s indicators namely union density rate and collective bargaining coverage rate, and the unemployment rate. I have conducted an empirical analysis on 34 OECD countries grouped into three groups based on their bargaining systems. The results indicate that there is no linear relationship between union density and collective bargaining coverage, and the unemployment rate in countries which have centralized co-ordinated, organized decentralized but co-ordinated bargaining systems and that those systems do not have influence on the way unions affect unemployment rate. However, the predominatly centralized but weakly co-ordinated system indicates to have a positive effect on the way unions affect unemployment rate and union density /collective bargaining coverage are positively related with the unemployment rate in this group. I try to argue for possible reasons for these findings.

Mass media has great influence over its audience. When a sensational story hits the news waves, the general public's attention is instantly riveted to the television screen. News stories that involve the deaths of innocent people often create a culture of fear, fuel false narratives, and scatter misinformation. In fact, this culture of fear, coupled with misleading information, created the myth of the juvenile superpredator, a phrase coined by DiIulio in the early 1990s. The stereotyped superpredator was a homicidal, uncontrollable youth hiding within areas where crime and violence are rare. In particular, this myth was propagated following the massacre at Columbine High School in 1999. Across time, misinformation and false narratives served to spotlight the perpetrators' notoriety—their ultimate motivation for perpetrating this heinous attack. News media, law enforcement, and school administrators are in the unique position to stop the spread of misinformation and prevent school shooters from gaining the fame they desperately seek, a common motivation among school shooters and copycat perpetrators. This study seeks to explore how the media portrayed the Columbine High School shooters and how it fed into the myth of the juvenile superpredator. This study analyzed youth violence risk factors in the wake of the Columbine High School Shooting to determine if news media was accurate in their reporting. We wanted to determine if news coverage was a major influence on the public's perception of youth violence. These risk factors were scrutinized from television news coverage from national news organizations. Results indicate that in the wake of school shootings, strong considerations regarding ethical news reporting and clearer lines of communication between school administrators and law enforcement officials may prevent misinformation from spreading in the first place and may prevent school shooters from gaining notoriety in such aftermaths. Additionally, curtailing the spread of misinformation may help communities prevent reactionary policies that ultimately harm school students through overly punitive measures.

Little is known about the impact of drug abuse/dependence on health insurance coverage, especially by race groups and income levels. In this study, we examine the disparities in health insurance predictors and investigate the impact of drug use (alcohol abuse/dependence, nicotine dependence, and illicit drug abuse/dependence) on lack of insurance across different race and income groups. To perform the analysis, we used insurance data (8057 uninsured and 28,590 insured individual adults) from the National Surveys on Drug Use and Health (NSDUH 2011). To analyze the likelihood of being uninsured we performed weighted binomial logistic regression analyses. The results show that the overall prevalence of lacking insurance was 19.6 %. However, race differences in lack of insurance exist, especially for Hispanics who observe the highest probability of being uninsured (38.5 %). Furthermore, we observe that the lowest income level bracket (annual income <$20,000) is associated with the highest likelihood of being uninsured (37.3 %). As the result of this investigation, we observed the following relationship between drug use and lack of insurance: alcohol abuse/dependence and nicotine dependence tend to increase the risk of lack of insurance for African Americans and whites, respectively; illicit drug use increases such risk for whites; alcohol abuse/dependence increases the likelihood of lack of insurance for the group with incomes $20,000–$49,999, whereas nicotine dependence is associated with higher probability of lack of insurance for most income groups. These findings provide some useful insights for policy makers in making decisions regarding unmet health insurance coverage.

京都大学 / 新制・課程博士 / 博士(情報学) / 甲第23319号 / 情博第755号 / 新制||情||129(附属図書館) / 京都大学大学院情報学研究科社会情報学専攻 / (主査)教授 吉川 正俊, 教授 田島 敬史, 教授 緒方 広明 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM

El presente trabajo explora cómo el uso de los drones de carrera ayuda a crear una cobertura audiovisual deportiva automotriz en las competencias de derrapes en la ciudad de Lima, Perú. Además, se explicará cómo se iniciaron las competencias de derrapes en el país de origen de Japón, cómo se expandió alrededor del mundo, llegando incluso al Perú y sumado a esto la creación de los drones que, mediante décadas de innovación tecnológica, se han ido perfeccionando hasta hoy en día tener drones más pequeños y con más versatilidad de vuelo que permite a los operadores de drones y creadores de contenido explorar nuevas técnicas de filmación. / This work explores how the use of racing drones help create audiovisual automotive sports coverage in the drift competitions in Lima, Peru. In addition, it will be explained how the drift competitions began in the country of origin of Japan, how it expanded around the world, even reaching Peru and added to this the creation of drones that, through decades of technological innovation, have gone refining to this day having smaller, more versatile drones that allow drone operators and content creators to explore new filming techniques. / Trabajo de investigación

Magister Legum - LLM / In South Africa, there are two health systems through which health services are delivered,1 namely private and public. These two systems were inherited from the apartheid regime.2 With South Africa’s political change from a system of parliamentary sovereignty to a constitutionally supreme system in 1996, huge changes were bound to come including changes to the health sector.3 This meant the overhauling of health legislation, as the right of access to health care services became guaranteed in the Constitution of the Republic of South Africa, 1996.4 In 1997, the White Paper on the Transformation of the Health System (White Paper on Health)5 was introduced with the aim of developing a national health system.6 There has been a lot of progress made in reforming the health sector, however there are still many cracks that the national government aims to remedy through the realisation of universal health coverage (UHC).

Background: Irresponsible self-medication is a problem for health systems in developing countries. We aimed to estimate the frequency of self-medication and associated factors in users of drugstores and pharmacies in Peru. Methods: We performed a secondary data analysis of the 2015 National Survey on User Satisfaction of Health Services (ENSUSALUD), a two-stage probabilistic sample of all regions of Peru. Non self-medication (NSM), responsible self-medication (RSM) and irresponsible self-medication (ISM) were defined as the outcome categories. Demographic, social, cultural and health system variables were included as covariates. We calculated relative prevalence ratios (RPR) with their 95% confidence intervals (95%CI) using crude and adjusted multinomial logistic regression models for complex samples with NSM as the referent category. Results: 2582 participants were included. The average age was 41.4 years and the frequencies of NSM, RSM and ISM were 25.2%, 23.8% and 51.0%; respectively. The factors associated with RSM were male gender (RPR: 1.35; 95%CI: 1.06-1.72), being between 40 and 59 years old (RPR: 0.53; 95%IC: 0.39-0.72), being 60 or older (RPR: 0.39; 95%IC: 0.25-0.59), not having health insurance (RPR: 1.89; 95%CI: 1.31-2.71) and living in the Highlands region (RPR: 2.27; 95%CI: 1.23-4.21). The factors associated with ISM were male gender (RPR: 1.41; 95%CI: 1.16-1.72), being between 40 and 59 years old (RPR: 0.68; 95%IC: 0.53-0.88), being 60 or older (RPR: 0.65; 95%IC: 0.48-0.88) and not having health insurance (RPR: 2.03; 95%CI: 1.46-2.83). Conclusion: Around half of the population practiced ISM, which was associated with demographic and health system factors. These outcomes are the preliminary evidence that could contribute to the development of health policies in Peru. / Revisión por pares