The purpose of this thesis is to examine the filmography of Korean filmmaker Bong Joon-ho [Pong Chun-ho], and to provide a limited textual analysis of each film divided across two categories: the “explicitly ecological” and “implicitly ecological”. The intent is to, by viewing all of Bong’s films leading up to his critical and commercial success Parasite, argue that Parasite is as much an environmental film as it is critical of neoliberalism and globalization, both of which are common readings of not only Parasite, but all of Bong’s work.The findings are that while Parasite avoids overt and exaggerated displays of eco-destruction visible in his Sci-fi films, the film still displays a conscious environmental awareness. The rainstorm featured in the second act of the film can be viewed not only through a local lens as an example of the dichotomy between wealthy and poor families in South Korea as it pertains to environmental crises, but as a microcosm of how climate change stands to impact the financially disenfranchised across the globe as climate shifts continue to grow. / Syftet med denna uppsats är att undersöka den koreanska regissören Bong Joon-hos filmografi och genom en begränsad analys av varje enstaka film, uppdelade i kategorierna ”explicit ekologiska” och ”implicit ekologiska” filmer. Avsikten är att genom en genomgång av alla Bongs filmer upp till publik och kritikersuccén Parasit argumentera för att Parasit är lika mycket en ekologisk film som den är en kritik av globalisering och neoliberalism, uppfattningar som förekommer ofta när det Bongs filmer diskuteras.Slutsatsen är att även om Parasit undviker lika storskaliga och överdrivna exempel av ekologisk förstörelse som i hans science-fictionfilmer så visar filmen fortfarande upp en ekologisk medvetenhet. Regnstormen som förekommer i filmens andra akt kan ses inte bara som ett exempel på skillnaden på hur rika och fattiga familjer i Sydkorea hanterar ekologiska kriser, men kan även tolkas som ett mikrokosm av hur klimatförändringar kommer påverka de finansiellt utsatta världen över allteftersom de förvärras.

The number of Internet of Things (IoT) devices is rising and Wireless Fidelity (Wi-Fi) networks are still widely used in IoT networks. Security protocols such as Wi-Fi Protected Access 2 (WPA2) are still in use in most Wi-Fi networks, but Wi-Fi Protected Access 3 (WPA3) is making its way as the new security standard. These security protocols are crucial in Wi-Fi networks with energy and memory-constrained devices because of adversaries that could breach confidentiality, integrity, and availability of networks through various attacks. Many research papers exist on single Wi-Fi attacks, and the strengths and weaknesses of security protocols and Wi-Fi standards. This thesis aims to provide a detailed overview of Wi-Fi attacks and corresponding mitigation techniques against IoT Wi-Fi networks in a comprehensive taxonomy. In addition tools are mentioned for each Wi-Fi attack that allows, e.g., professionals or network administrators to test the chosen Wi-Fi attacks against their IoT networks. Four types of attack (categories) were defined, Man-in-the-Middle (MitM), Key-recovery, Traffic Decryption, and Denial of Service (DoS) attacks. A set of Wi-Fi attack features were defined and decribed. The features included the security protocol and security mode, the layer (physical or data-link) that an attack targets, and the network component interaction required to allow a Wi-Fi attack to execute successfully. In total, 20 Wi-Fi attacks were selected with relevance to IoT in Wi-Fi networks based on some criteria. Additonally, each Wi-Fi attack consist of a description of possible consequences/results an adversary can achieve, such as eavesdropping, data theft, key recovery, and many more. Flow charts were also added to give the reader a visual perspective on how an attack works. As a result, tables were created for each relevant security protocol and the Open Systems Interconnection (OSI) layers to create a overview of mitigations and available tools for each attack. Furthermore, WPA3 was discussed on how it solves some shortcomings of WPA2 but has vulnerabilities of it own that lie in the design of the 4-way and dragonfly handshake itself. In conclusion, development and proper vulnerability tests on the Wi-Fi standards and security protocols have to be conducted to improve and reduce the possibility of current and upcoming vulnerabilities.

No description available.

In 1971, Isaac Asimov observed in humanity, a science-important society. For this he credited the man who had been his editor in the 1940s during the period known as the golden age of American science fiction, John W. Campbell, Jr. Campbell was editor of Astounding Science-Fiction, the magazine that launched both Asimov's career and the golden age, from 1938 until his death in 1971. Campbell and his authors set the foundation for the modern sci-fi, cementing genre distinction by the application of plausible technological speculation. Campbell assumed the science-important society that Asimov found thirty years later, attributing sci-fi ascendance during the golden age a particular compatibility with that cultural context. On another level, sci-fi's compatibility with "science-important" tendencies during the first half of the twentieth-century betrayed a deeper agreement with the social structures that fueled those tendencies and reflected an explication of modernity on capitalist terms. Tethered to an imperative of plausibly extrapolated technology within an American context, sci-fi authors retained the social underpinnings of that context. In this thesis, I perform a textual analysis of stories published in Astounding during the 1940s, following the sci-fi as it grew into a mainstream cultural product. In this, I prioritize not the intentions of authors to advance explicit themes or speculations. Rather, I allow the authors' direction of reader sympathy to suggest the way that favored characterizations advanced ideological bias. Sci-fi authors supported a route to success via individualistic, competitive, and private enterprise. They supported an American capitalistic conveyance of modernity. / Master of Arts

Computer networks are in the scope of the IEEE organization normalized by the 802 board which currently comprises six working groups for wireless communications. IEEE 802.11 for wireless local area networks, IEEE  802.15 for wireless personal area networks, IEEE 802.16 for wireless metropolitan area networks, IEEE 802.20 for mobile broadband wireless access, IEEE 802.21 for media independent handover and IEEE 802.22 for wireless regional area networks. This master's thesis focuses on a security analysis of particular standards, describes threats, vulnerabilities, current security measures and mutually compares wireless specifications from a security point of view. The conclusion is devoted to overall evaluation of the project, to its contributions, possible enhancements and continuation in the form of consequential studies.

Vehicles today are becoming increasingly more connected. Most cars are equipped with Bluetooth, Wi-Fi and Wi-Fi hotspot capabilities and the ability to connect to the internet via a cellular modem. This increase in connectivity opens up new attack surfaces for hackers to exploit. This paper aims to study the security of three different cars, a Tesla Model 3 (2020), an MG Marvel R (2021) and a Volvo V90 (2017), in regards to three different eavesdropping attacks. The performed attacks were a port scan of the vehicles, a relay attack of the key fobs and a MITM attack. The study discovered some security risks and discrepancies between the vehicles, especially regarding the open ports and the relay attack. This hopefully promotes further discussion on the importance of cybersecurity in connected vehicles. / Bilar idag har blivit alltmer uppkopplade. Idag har de inte bara bluetooth och Wi-Fi funktionalitet utan vissa bilar har förmågan att kopplas till internet via ett mobilt bredband. Denna trend har visats ge bilar nya attackytor som hackare kan utnyttja. Målet med denna studie är att testa säkerheten hos tre olika bilar, Tesla Model 3 (2020), MG Marvel R (2021) och Volvo V90 (2017) med åtanke på tre olika avlyssningsattacker. De attackerna som studien valde var port-skanning på bilen, relä-attack på bilnycklarna och mannen-i-mitten attack. Studien hittar vissa säkerhetsrisker och skillnader mellan de olika bilarna särskilt vid reläattacken och port-skanningen som förhoppningsvis främjar en fortsatt diskussion om cybersäkerhetens vikt för säkrare uppkopplade bilar.

認知功能的提升是當今神經科學領域中的研究重點之一，但其神經機制尚有待釐清。本研究利用一種用於改善阿茲海默症臨床的非競爭型N-甲基-D-天門冬胺酸受體拮抗劑memantine，檢測其對於大白鼠在不同時距相關操作式制約行為及空間工作記憶行為之影響效果。實驗一為針對時間屬性的操作式制約行為實驗，運用大白鼠的區辯性增強低頻反應作業（DRL 10秒行為）與固定時距作業（FI 30秒行為）之行為作業，並操弄連續訓練與間歇訓練的兩種不同模式，測試memantine對前述四組受試的操作式制約行為在表現、消除與自發恢復等三階段之劑量反應。實驗二利用配對性延遲T迷津作業區分出不等基準線(表現好與表現差)之受試，再加以藥理實驗，測試memantine對於前述兩組受試之劑量反應。實驗一結果顯示，受試在兩種不同訓練模式下經十五次習得訓練後，在兩種操作式壓桿行為的壓桿反應相關指標中都有明顯的差異，這證實不同的行為訓練模式會導致學習後的表現有差異之別。memantine藥理實驗結果顯示，此藥對於上述四組受試的操作式行為之三階段的影響效果，會因為不同訓練模式與不同作業而異。實驗二結果顯示，memantine提高空間工作記憶的正確率在表現不好的組別有很顯著的藥效，這證實memantine對於空間式工作記憶行為的影響，也會因學習基準線的不同水平而異。在行為實驗後所進行的蛋白質表現量檢測中，memantine（5 mg/kg）只對五個測試腦區中的背側紋狀體中ERK1磷酸化程度有明顯上升的影響，而其對ERK2及CREB的磷酸化在所有腦組織中皆沒有顯著的影響。綜合以上結果，memantine影響時間與空間屬性的相關行為之藥理效果，會依行為的不同習得歷程(或行為背景經驗)及基準線表現程度而異，而此項行為藥理效果，可能與紋狀體中ERK1的磷酸化有關。 / The neural basis of cognitive enhancement is one of the intriguing topics in neuroscience research; however, the underlying neural mechanisms remain to be elucidated. This study examined the effects of memantine, a non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist which is used to treat Alzheimer’s disease in clinic, on operant behaviors and spatial working memory. In Experiment 1, using the differential reinforcement for low-rate-response 10 sec (DRL 10s) and the fixed-interval 30 sec (FI 30s) operant tasks, and with the manipulation of two different training regimens (continuous vs. intermittent) in the acquisition phase, the effects of memantine were evaluated in three stages of behavioral tests including the performance (right after the end of 15-day acquisition), the extinction, and the spontaneous recovery (after the extinction). In Experiment 2, memantine were tested in the subjects with different level of baseline performance (good vs. bad) on the distinctive patterns of operant responding in four different groups which received DRL 10s and FI 30s with different training regimens; indicating that behavioral task and training background are critical to the operant performance of temporal operant behaviors. Such behavioral outcomes led the dissociable effects of memantine appeared in between the four groups as tested in all three different stages. The results of Experiment 2 showed a profound improvement of the correct responses rate on spatial working memory in the low-baseline group as compared to the higher-baseline group. With a pretreatment of memantine (5 mg/kg), brain tissues in five selected areas were collected for western blot assays of ERK 1, ERK 2, and CREB. The results only revealed a significant increase of ERK 1 phosphorylation in the dorsal striatum. Together, the effects of memantine to improve cognition-associated processes in the temporal operant behaviors and the baseline of performance, and the present observation of cognition-enhancing effects of memantine may be resulted by the ERK 1 phosphorylation in the dorsal striatum.

No description available.

Recommendation systems are information filtering systems that help users effectively and efficiently explore large amount of information and identify items of interest. Accurate predictions of users' interests improve user satisfaction and are beneficial to business or service providers. Researchers have been making tremendous efforts to improve the accuracy of recommendations. Emerging trends of technologies and application scenarios, however, lead to challenges other than accuracy for recommendation systems. Three new challenges include: (1) opinion spam results in untrustworthy content and makes recommendations deceptive; (2) users prefer diversified content; (3) in some applications user behavior data may not be available to infer users' preference. This thesis tackles the above challenges. We identify features of untrustworthy commercial campaigns on a question and answer website, and adopt machine learning-based techniques to implement an adaptive detection system which automatically detects commercial campaigns. We incorporate diversity requirements into a classic theoretical model and develop efficient algorithms with performance guarantees. We propose a novel and robust approach to infer user preference profile from recommendations using copula models. The proposed approach can offer in-depth business intelligence for physical stores that depend on Wi-Fi hotspots for mobile advertisement. / Graduate / 0984 / cchenv@uvic.ca

Ìsìnrú na ní bawo ohun pàtàkì na ise ìtenumó ni Brasili ati ìbi: "ki banújé ní fun àwon ki jadekúrò Instituto Metodista Porto Alegre (IPA-RS) àwon ise ìtenumó?" Èrò: yé, mó, túka ìwé ré ati/tabi banújé fun àwon jadekúrò ilá ìweé àgbá ni Brasili ki tó si Centro Ecumênico de Cultura Negra (CECUNE). Kan ekeji ibéèrè àwárì: mò nípa ikó àwon egúngun Afrika; kó bawo bi fifún àwon ohun lâárín èda ènià, arãlé ati egbé; mò, ònà àwon já ogun aráye Dudu gaúcho ati Brasili; túka àwon ònà ise wonyi ni ilê-ayé, ni Brasili ati Àwon Ìlú Fi Kún. Ekó àwon ohun – ìwádi ìrí – síbí àwon ohun nípa àwon ibéèrè, ìbi, pàdé àwon èniyàn ki jadekúrò, ati, túka àwon ìwé àwon ibi iwadí. Ibéèrè pèlú àwon olùkó The John Lewis Warfield Center for African and African Americen Studies at The University of Texas at Austin – USA ati túka ida sílè àwon ìwé ìlú eyi nípa ibéèrè. Àwon ìdáhùn: bá àwon asa ibi ojõjó ti dé ikoja Afrika ki kòsílè àdáwó ré nínú awa; nínú àwon àkókò àwon erú, àwon ja ogun quilombolas rú jade àwon ni/fun òmìnirà àwon ko ìbásededé – ni ìtóbi ati àwon àkója – ni ekó ati ni ojá ise ati, ni àwon onírúurú ni àwon ibi egbé. Àwon ìdáhùn: àwon ibéèrè èdá ènià-arãlé- egbé ni eta àwon ohun pàtàkì fun àwon ise ìtenumó fun àwon jadekúrò: èhin-òla isé; èhin-òla ebí ati ara; àlá da; èda titun ènia; titun àsìkò; pó si ife pàápàá; ìwé ìhòhìn àwon ohun egbé; pó si ìdàpò ati ìsúná ati ayé. / A tese tem o ponto central nas Ações Afirmativas na sociedade brasileira e problematiza: "Que sentidos têm para os egressos do Instituto Metodista Porto Alegre (IPA-RS) as Ações Afirmativas?" Seu objetivo foi entender, compreender, analisar o papel dessas ações e/ou o sentido que tem para os egressos dessa Instituição de Ensino Superior privada, no Brasil, conveniada com o Centro Ecumênico de Cultura Negra (CECUNE). De forma secundária, ela objetivava conhecer, pelo estudo sistemático, a ancestralidade africana; aproximar as relações entre raça/etnia e classe social; compreender o caminho/processo das lutas do povo negro afro-gaúcho e brasileiro; analisar os caminhos dessas ações no mundo, especificamente no Brasil e nos Estados Unidos. Foi feito um estudo de caso – de natureza qualitativa – mediante coleta de dados por meio de questionários, entrevistas, encontro de egressos e análise de documentos dos locais da pesquisa. Foram entrevistados professores do The John Lewis Warfield Center for African and African American Studies at The University of Texas at Austin – USA e analisada a produção bibliográfica desse país sobre a temática. Como resultados, foram descobertos costumes locais cotidianos oriundos do passado africano que deixaram suas contribuições em nossa sociedade; nos tempos da escravidão, lutas quilombolas emergiram na/para abolição das desigualdades. Os conceitos das ações afirmativas se diferenciam – em amplitude e metas – na educação, no mercado de trabalho e na diversidade do convívio em espaços sociais. Concluiu-se que as relações raça-etnia-classe formam o tripé onde se destacam como sentidos da ação afirmativa para os egressos: futuro profissional; futuro familiar e pessoal; realização de um sonho; possibilidade de reconstrução da identidade; oportunidade única; elevação da autoestima; retratação cultural; avanço socioeconômico e perspectiva de vida. / This dissertation has the central concern with the affirmative actions in the Brazilian society and problematizes: "What meanings do the affirmative actions have to former students of the Instituto Metodista Porto Alegre (IPA-RS)?" Its objective was to understand, grasp, and analyze the affirmative actions role and/or meaning to former students of this Brazilian private college institution, affiliated to the Centro Ecumênico de Cultura Negra (CECUNE). Secondly it aimed at knowing the African ancestrality through a systematic study; at approaching the relations between race/ethnicity and social class; at grasping the path/process of Black people´s struggles in Rio Grande do Sul and in Brazil; at analyzing the ways of those actions in the world, specifically in Brazil and in the United States. A case study was performed – in qualitative terms – by collecting data through questionnaires, interviews, meetings with former students, and analysis of documents from the research sites. Were also interviewed professors of The John Lewis Warfield Center for African and African American Studies at The University of Texas at Austin – USA and analyzed the bibliographic works about the thematic produced in this country. As a result, were found daily local habits arisen from the Africans past, which bring contributions to our society; in slavery times, maroon struggles emerged to abolish racial inequalities. Affirmative actions concepts differ – in ampleness and goals – in education, in labor market and in the diversity of social contact in social spaces. The conclusion was that race-ethnicity-social class relations form the tripod where the meanings of affirmative actions to former students are highlighted: professional future; family and personal future; a dream fulfillment; ways of identity reconstruction; unique opportunity; self-esteem improvement; socioeconomic progress, cultural withdrawal and life perspective. / La tesis tiene el punto central en las acciones afirmativas en la sociedad brasileña y problematiza: "¿Qué sentidos tienen para los egresos del Instituto Metodista Porto Alegre (IPA-RS) las Acciones Afirmativas?" Objetivo: entender, comprender, analizar su papel y/o sentido para egresos de esta Institución de Enseñanza Superior privada en Brasil, conveniada al Centro Ecumenico de Cultura Negra (CECUNE). Secundariamente objetiva: conocer por el estudio sistemático la ancestralidad africana; aproximar las relaciones entre raza/etnia y clase social; comprender el camino/proceso de luchas del pueblo negro afro-gaucho y brasileño; analizar los caminos de esas acciones en los espacios del mundo, específicamente Brasil y Estados Unidos. Estudio de caso - naturaleza cualitativa - colecta de datos por medio de cuestionarios, entrevistas, encuentro de egresos, y, analiza documentos de los sitios de la pesquisa. Entrevistas con profesores de The John Lewis Warfield Center for African and African American Studies at The University of Texas at Austin- USA y análisis de la producción bibliográfica de este país sobre la temática. Resultados: fueron descubiertas costumbres locales cotidianas, oriundas del pasado africano que dejan sus contribuiciones en nuestra sociedad; entre los tiempos de esclavitud, luchas quilombolas emergen en las/para aboliciones de las desigualdades. Conceptos de las acciones afirmativas se diferencian – en amplitud y metas – en la educación y en el mercado de trabajo y, en la diversidad del convivio en espacios sociales. Conclusiones: Relaciones raza-etnia-clase forman el trípode que se destacan como sentidos de la acción afirmativa para los egresos: futuro profesional; futuro familiar y personal; realización de un sueño; posibilidad de reconstrucción de identidad; oportunidad única; elevación de la autoestima; retractación cultural; avanzo socioeconómico y perspectiva de vida.