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As part of the Immigration Act of 1990, the United States has held an annual Diversity Visa (DV) lottery, encouraging nationals of countries that historically sent few migrants to the United States to apply for one of 50,000 legal immigrant visas. The DV lottery has reshaped global migration, making possible for the first time significant voluntary immigration from sub-Saharan Africa to the United States, and serving U.S. public diplomacy in the region by sustaining the American Dream. Drawing on a range of archival and published sources and oral interviews conducted in Africa, this dissertation illuminates how immigration and American global power have shaped each other since the end of the Cold War. It traces the history of the lottery from its legislation in Washington to its operation in sub-Saharan Africa, where, transmitted by non-state actors, it shaped African perceptions of the United States. Sparked by the advocacy of undocumented Irish immigrants in the United States in the late 1980s, policymakers created the lottery as an instrument for legal migration outside of family, employment, and refugee admissions categories. Motivated by domestic politics, and aiming to make visas available to white Europeans shut out of the system since 1965’s Hart-Cellar Act, Congress embraced “diversity” to attract immigrants from countries underrepresented in the immigration stream. Once enacted, immigration attorneys and others amplified the program for personal profit, attracting eager applicants both within and outside of U.S. borders. The lottery was the subject of the world’s first internet spam in 1994, and its operation coincided with the global spread of internet cafés, which became, by the early 2000s, key sites of DV lottery participation and migration commercialization in Africa. The lottery provided a rare chance at geographic mobility for Africans after the end of the Cold War, making it powerful in the countries examined in this dissertation: Ghana, Nigeria, and Cameroon. As neoliberal reforms reconfigured many African states’ economies in the 1980s and 1990s, individuals sought increasingly to escape in search of greener pastures. Unlike other contemporary migration policies, the lottery unintentionally created a channel of legal access to the United States for Africans. Local entrepreneurs seized the visa lottery as an opportunity to profit from fellow Africans’ desperation and aspiration to depart. They transformed the abstract policy into a concrete possibility and promoted positive impressions of the United States as a land of “milk and honey,” reshaping African migrations and international relations in the process. / History

Thesis (Ed.D.)--Boston University / The influx of international graduate students in science and engineering to the U.S. has changed since the terrorist attacks of September 11, 2001. The implementation of the Student and Exchange Visitor Information System (SEVIS) and related F-1 visa policies have required a higher level of scrutiny of the student visa procedures, and introduced strict student monitoring policies and measures. In addition, the SEVIS monitoring and compliance system has altered the operation of international student service offices, affected the students they serve, and the operation of the universities enrolling international students. This study investigated the effects of SEVIS on graduate programs in science and engineering and their students. Information was gathered from respondents from the 60 universities having the highest population of intemational students in these fields, according to NSF. Respondents included department administrators, admissions officials, and SEVIS professionals. Data V111 were collected from 75 on-line survey respondents and in 21 semi-structured interviews. The results of this study suggest that many international students are negatively affected by SEVIS, impacting their ability to remain in-status and to understand how the system works. To counter this, department administrators, SEVIS professionals, and student advisors have increased their level of support for these students, providing them guidance on how to remain in-status and how to improve their social and academic experience in the United States. As a result, relatively few international students are deported for falling out-of-status in SEVIS. The data also made clear that program administrators and admissions officials have little knowledge about SEVIS, F -1 visa policies, and their influence on international enrollments. Finally, this study provided evidence of an increased workload for international student advisors and SEVIS professionals. Universities have had to hire additional staff, increase their information technology investment in linking home-grown student service systems with SEVIS, and proactively anticipate any hurdles that international students may have and resolve them as expeditiously as possible. / 2999-01-01

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Företaget Hajenterprise vill göra en forskning inom kommunikation för att hantera kontaktlösa betalningar för att kunna ta betalt kontaktlöst med hjälp av mobilen. Idag används bankkort för att betala för de flesta saker. Nya betalningssätt har rört sig mot kontaktlösa köp med hjälp av smarta telefoner och NFC-teknologier. Smarta telefoner har börjat användas mer och mer i kontaktlösa köp mot point of sale (POS) terminaler. Skulle det då gå att kunna ta bort POS-terminaler och använda smarta telefoner som POS-terminaler? För att besvara detta behövdes tester utföras för att se ifall en smart telefon skulle kunna läsa ett bankkort och behandla bankkortets information. Bankkort kunde läsas av de smarta telefonerna men informationen från bankkortet kunde inte användas av den smarta telefonen för att genomföra en betalning. Detta var eftersom beroende på telefon, öppnades Samsung, Google eller Apple pay. En smart telefon kunde alltså ta emot information från ett bankkort men telefonen kunde inte använda den information för att utföra en betalning på en terminal. Utöver forskningen av olika betalningssätt, skapades en applikation där betalning skulle kunna utföras från en mobil till en annan mobil. Detta skulle ske med hjälp av Near Field Communication (NFC) och blockchain, eftersom Hajenterprise vill ha en prototyp-applikation som skulle kunna betala och ta betalt över NFC mot deras blockchain. JavaScript användes för att skapa en react native applikation som kunde fungera på både Android och iOS. Detta lade grunden så att Hajenterprise kunde använda sitt blockchain-api för mobila betalningar. / The company Hajenterprise wanted to research the area of contactless payments to see if it’s possible to Pay contactless with a mobile phone. Today bank cards are used to pay for most things. New payment methods have moved toward contactless purchases using smart phones and NFC-technologies. Smart phones have begun to be used more and more in contactless purchases at point of sale (POS) terminals. The possibility to remove POS-terminals and use smartphones instead as POS-terminals could make it easier and faster to pay. To test this, several tests were needed to see if a smartphone could read a bank card and process the card's information. Bank cards could be read by the smartphone but the information from the bank card could not be used by the smartphone to make a payment. This was because depending on the phone, Samsung, Google or Apple Pay was opened. Thus, a smart phone could receive information from a card but the phone could not use that information to make a payment at a terminal. In addition, an application was created where one could make payments from one mobile to another mobile. This would be done using Near Field Communication (NFC) and blockchain, as Hajenterprise wanted a prototype-application that could pay and charge over NFC against their blockchain. JavaScript was used to create a react native application that could work on both Android and iOS. This laid the foundation for Hajenterprise to use its blockchain API for mobile payments.

Att betala med kort är idag standardiserat, men något som också är väldigt vanligt är att betala kontaktlöst. Detta kan göras både med ett kontaktlöst kort eller med en smarttelefon. Teknologin som möjliggör detta är närfältskommunikation. Examensarbetet undersöker hur säkerheten i dessa betalningsmetoder är uppbyggd, vad det finns för säkerhetsproblem samt hur användningen kan se ut i framtiden. Den primära frågeställningen var att undersöka om det är lika säkert eller till och med säkrare att använda en smarttelefon för kontaktlösa betalningar jämfört med ett kontaktlöst kort. För att undersöka detta, gjordes en omfattande litteraturstudie och en enkätundersökning. Resultatet av examensarbetet visade på att det fanns olika typer av hot och sårbarheter som exempelvis avlyssning, modifikation och korruption av data, reläattacker, skadlig applikation och programvara, svag autentisering och manipulation av applikationer. Det fanns även flertalet aspekter som påverkade hur väl dessa hot kunde utföras, bland annat tokenisering, kryptering men även det korta avståndet som krävs och social ingenjörskonst. Det upptäcktes även att attackytan skiljde sig mellan metoderna. Smarttelefonen hade flertalet hot och sårbarheter som ofta baseras på att det finns ett användargränssnitt, att enheten har ett annat användningsområde, och exempelvis skadlig programvara och ”rootade” enheter. När en enhet är ”rootad” betyder det att användaren får en annan typ av åtkomstkontroll. Enkätundersökningen visade att ungefär hälften av deltagarna kan tänka sig använda smarttelefonen i framtiden för att utföra kontaktlösa betalningar. / To pay with a card is standardized today, but something that is also very common is to pay contactless. This is possible to do with a contactless card or with a smartphone. The technology that makes this possible is Near Field Communication. This thesis examines how the security in these payment methods is structured, which security issues exists but also how the use may look in the future. The thesis also includes to investigate if it is as safe or even safer to use a smartphone for contactless payments compared to a contactless card. To investigate this, an extensive literature study and a questionnaire survey was conducted. The results of the thesis showed that there were different types of threats and vulnerabilities such as eavesdropping, data modification, data corruption, relay-attacks but also malicious application and software, weak authentication, and manipulation of applications. However, there were also several aspects that affected how well these threats could be carried out, including tokenization, encryption but also the short distance required and social engineering. It was also discovered that the attack surface differed between the two methods. The smartphone had several threats and vulnerabilities many of them existed since there is a user interface, and that the device is used in other ways. For example, malware and “rooted” devices, when a device is “rooted” it means that the user gets another type of access control for the device. The survey showed that about half of the participants may be willing to use a smartphone in the future to make contactless payments.

Many oppressed people wish to seek permanent refuge within the borders of affluent Western liberal democratic states such as Canada and Australia. Since the conclusion of the Second World War, the International refugee regime has established a global legal migration framework for contracting states such as Canada and Australia to grant admission to asylum seekers into each respective political community while retaining effective border control measures to maintain public safety. This thesis argues that the international refugee regime has suffered a gradual decline during the last two decades, especially during the post-9/11 era, primarily due to the dominance of the notions of national sovereignty and security in Canada and Australia. The author recognizes the importance of realpolitik and pays tribute to the concept of national sovereignty. However, he contends that the predominance and prevalence of the securitization phenomenon in recent years in both Canada and Australia, has given rise to a culture of suspicion which primarily perceives and publicly portrays asylum seekers as entities with ulterior motives. Such views have subsequently culminated in the normalization of national refugee determination policies which inherently favor the implementation of human containment measures such as arbitrary and indefinite detention and Temporary Protection Visas (TPVs); restrictive measures which inherently violate some of the core legal principles of the international refugee regime. The author recommends a return by both Ottawa and Canberra to a more balanced refugee determination system which is aligned with the 1951 Refugee Convention and 1967 Protocol and further explores several alternative solutions that may be employed by Canada and Australia to effectively manage asylum seeker populations in each country. / Graduate / gheshmat@uvic.ca

I den här uppsatsen undersöks en grupp gymnasieelevers förmågor när det gäller att lösa den typ av matematikuppgifter som kallas visa-att-uppgifter. Denna typ av uppgifter består i att verifiera matematiska påståenden. Uppgifter har valts från underområdena heltal, geometri och avancerade aktuella begrepp. Gymnasiets båda studieförberedande spår och två av inledande matematikkurserna är representerade.Undersökningen är kvasi-empirisk och bygger på elevers lösningar och dessa analyseras uti-från forskning på området. Främst används Balacheffs fyra utförandenivåer och de tre förmågorna begrepps-, resonemangs- och kommunikationsförmågan.Resultatet är en kvantitativ beskrivning av elevernas lösningar där nivåer och förmågor utgör variabler. En kvalitativ beskrivning utan specifik metod är också med. / In this thesis, a group of secondary school students’ competencies are investigated specific to a certain type of exercises called show-that-exercises. These exercises consist of demonstrating the correctness of mathematical propositions and have been chosen from the sub contents whole numbers, geometry and advanced concepts. Both secondary schools’ preparatory tracks and two of the first mathematic courses are represented.The survey is a quasi-empirical field experiment and rests on students’ solutions to exercises and these are analysed in accordance with research on the topic. Primarily Balacheffs’ four levels of proofs are used, and the three competencies key concepts, reasoning and communica-tion are in focus.The result is a quantitative description of the pupils’ solutions with the four levels and the three competencies as variables. A qualitative description without specific method is included.

Made available in DSpace on 2016-03-15T19:43:40Z (GMT). No. of bitstreams: 1 Celso Alves da Ponte.pdf: 833032 bytes, checksum: 8102ec3eb84b8e1e3a7c8bf07c1b9743 (MD5) Previous issue date: 2006-09-05 / This dissertation aimed at discussing, under exploratory nature, the application of communication and music mechanisms, with a classic evangelic church as a way for making possible the maintenance of its members' number and also the volume of tithes and offers collected. In more detailed way, this study aimed at determining in what form these instruments, such as: campaigns, internal communication, pastoral message, bands and the corals favor the permanence of the congregation members and conquer others for the Baptist Church of Água Branca. This study showed what the application of communication in marketing and music by the churches, may immediately constitute an instrument that allows for attracting people to the church, providing its sustainability. / Esta dissertação visou discutir, em caráter exploratório, a aplicação dos mecanismos de comunicação e a música, junto a uma igreja evangélica clássica como forma de possibilitar a manutenção de seu número de membros e também o volume de dízimos e ofertas arrecadados. De maneira mais detalhada, o presente estudo objetivou determinar de que forma estes instrumentos, tais como: campanhas, comunicação interna, e mensagem pastoral, as bandas e os corais favorecem a permanência dos fiéis e conquistam outros para a Igreja Batista de Água Branca. Este estudo mostrou que a aplicação da comunicação em marketing e as músicas pelas igrejas, pode se constituir de imediato em instrumento que permite atrair pessoas para a igreja, proporcionando a sua sustentabilidade.

The United States recently completed the construction of a new Consulate compound in an underdeveloped site in Ciudad Juarez, Chihuahua, Mexico. Mexican applicants for U.S. Immigrant Visas, particularly those who had previously entered the United States without inspection, are sent to the facility to apply through a mandatory personal interview. The interview process necessitates highly invasive medical exams at designated militarized facilities, followed by a series of interviews with consular officers. Applicants, many of whom are visiting Juarez for the first time, must wait in the city for days or weeks as they attempt to navigate the requirements. Even as the city has become more violent, the U.S. Consulate mission in Juarez has become an economic driver as it processes more immigrant visas than any other U.S. Consular office in the world. It is also the largest U.S. Consulate building on the planet and the immigration complex is drawing new migrants who are both seeking asylum through it and aiding in its construction. U.S. immigration policies and the administrative procedures that accompany them also serve to discipline immigrant visa applicants long before they arrive in Juarez as they navigate a system built on penalties and waivers. The effects of these policies transcend borders and citizenship, impacting not only the immigrant applicant, but their U.S. families as well. The normalization of violence towards Mexicans and their families is becoming entrenched in a culture of impunity, both in Mexico and the United States. The immigrant processing and maquiladora manufacturing that take place in Ciudad Juarez play a specific role in U.S. / Mexico relations and are representative of the intersection of immigration policy, labor desires, and neoliberal and post-neoliberal policies of structural violence. The United States has developed, in Juarez, an economic development and security program and immigrant processing center concomitantly and Mexico has worked lockstep to fortify this position. I examine this historical occurrence, and the experiences of immigrant applicants and their families, using Foucault’s theories of discipline. / text