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According to research, software security vulnerabilities most often stem from memory related issues. These memory issues are mitigated in many programming languages, but often at the cost of performance. Rust, however, is a programming language which addresses these memory issues without significant losses in performance. Leveraging this strength, an Application Programming Interface (API) for interacting with Mimer SQL databases was developed in Rust. As there is no standard for writing database APIs in Rust, inspiration was drawn from other Rust APIs for relational database management systems to ensure similar functionality. The development process involved three main steps: stakeholder requirement specification, system design and implementation, and testing and evaluation. Stakeholder requirements were identified collaboratively to ensure alignment between user needs and API functionality. The system design consists of two libraries: the “FFI Library”, facilitating interaction with the Mimer SQL C API, and the “API library”, providing a user-friendly interface for Rust developers. Key features include connection management, statement preparation, cursor handling, and transaction support. Testing methodologies include unit and integration testing, performance benchmarking against the C API, and consideration for memory safety. The resulting API demonstrates performance parity with the C API and adherence to Rust conventions. / Enligt forskning beror säkerhetsbrister i programvara oftast på minnesrelaterade problem. Dessa minnesproblem motverkas i många programmeringsspråk, men ofta på bekostnad av prestanda. Rust är dock ett programmeringsspråk som åtgärdar dessa minnesproblem utan betydande prestandaförluster. Genom att utnyttja denna styrka utvecklades ett applikationsprogrammeringsgränssnitt (API) för att interagera med Mimer SQL-databaser i Rust. Eftersom det inte finns någon standard för att skriva databas-API:er i Rust hämtades inspiration från andra Rust-API:er för relationsdatabaser för att säkerställa liknande funktionalitet. Utvecklingsprocessen innefattade tre huvudsteg: specifikation av intressentkrav, systemdesign och implementering samt testning och utvärdering. Intressentkraven identifierades genom samarbete för att säkerställa överensstämmelse mellan användarbehov och API-funktionalitet. Systemdesignen består av två bibliotek: “FFI-biblioteket”, som erbjuder interaktionen med Mimer SQL C API:t, och “API-biblioteket”, som erbjuder ett användarvänligt gränssnitt för Rust-utvecklare. Nyckelfunktioner inkluderar anslutningshantering, validering av SQL-satser, iterering över resultatset och transaktionsstöd. Testmetoderna omfattar enhets- och integrationstester, prestandajämförelser med C API:t och testning av minnessäkerhet. Det resulterande API:t visar prestandaparitet med C API:t och följer konventioner i Rust.

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Abstract  This study examined grade 4-6 English teachers’ preferred approach regarding the timing of grammatical instruction, developed and distinguished by Spada and Lightbown (2008) as isolated and integrated form-focused instruction (FFI). Both isolated FFI and integrated FFI are described as taking place in primarily meaning-based communicative classrooms. They differ in that isolated FFI takes place separately from communicative activities, while integrated FFI occurs during communicative activities. Using this theoretical distinction, Valeo and Spada (2016) developed teacher and learner questionnaires. The teacher questionnaire, along with observations, was used in the current study to investigate the views of teachers in the context of Swedish compulsory school. Quantitative and qualitative analyses of the questionnaire and observation data shows a preference for integrated FFI across all grades (grade 4, grade 5 and grade 6). At the same time, many teachers expressed the value of isolated FFI. The views of the teacher in this study align with previous research claiming that isolated and integrated FFI should not be mutually exclusive. Consistent with Valeo and Spada (2016), the teachers of this study pointed out that context, individual pupils and teacher beliefs may have an impact on decisions regarding the timing of grammatical instruction.

Background. Resilience is the capacity of individuals to resist mental disorders despite exposure to stress. Little is known about its neural underpinnings. The putative variation of white-matter microstructure with resilience in adolescence, a critical period for brain maturation and onset of high-prevalence mental disorders, has not been assessed by diffusion tensor imaging (DTI). Lower fractional anisotropy (FA) though, has been reported in the corpus callosum (CC), the brain’s largest white-matter structure, in psychiatric and stress-related conditions. We hypothesized that higher FA in the CC would characterize stress-resilient adolescents. Method. Three groups of adolescents recruited from the community were compared: resilient with low risk of mental disorder despite high exposure to lifetime stress (n = 55), at-risk of mental disorder exposed to the same level of stress (n = 68), and controls (n = 123). Personality was assessed by the NEO-Five Factor Inventory (NEO-FFI). Voxelwise statistics of DTI values in CC were obtained using tract-based spatial statistics. Regional projections were identified by probabilistic tractography. Results. Higher FA values were detected in the anterior CC of resilient compared to both non-resilient and control adolescents. FA values varied according to resilience capacity. Seed regional changes in anterior CC projected onto anterior cingulate and frontal cortex. Neuroticism and three other NEO-FFI factor scores differentiated non-resilient participants from the other two groups. Conclusion. High FA was detected in resilient adolescents in an anterior CC region projecting to frontal areas subserving cognitive resources. Psychiatric risk was associated with personality characteristics. Resilience in adolescence may be related to white-matter microstructure.

Burnout is a psychological syndrome caused by occupational stress, which often manifests in mental health professionals who experience demanding and emotionally charged relationships with clients. Guided by the equity theory, this study examined the relationship between spiritual transcendence and burnout in psychologists and social workers who work with severely mentally ill patients after accounting for specific personality traits. Constructs were measured via the Spiritual Transcendence scale (STS), Maslach Burnout inventory (MBI), and the NEO-Five Factor Inventory (NEO-FFI). Sixty eight psychologists and social workers were selected from psychiatric hospitals, community centers, and private practice in Nevada to participate in the study. A quantitative approach using hierarchical regression was used for statistical analysis. The results suggest that, after controlling for the NEO-FFI scales, STS was not significantly related to burnout. The results also suggest that, as the personality factor of neuroticism increases, burnout rates also increase and as the personality factors of extraversion and agreeableness increase, burnout tends to decrease. The social change implication of this research is identifying personality factors that contribute to, or are protective factors of, burnout. For example, individuals who score high on neuroticism scales can be aware of their susceptibility to burnout, and those with high scores on agreeableness and extraversion can be conscientious of those factors and potentially put protective factors in place. These findings are beneficial to employers of mental health professionals, program developers, and mental health professionals themselves.

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The purpose of this research study was to determine if there is a correlation between personality type and level of confirmation bias. Confirmation bias is the idea that people are more likely to agree with opinions already similar to their own and they will actively seek out that opinion. The NEO Five Factor Inventory was administered to determine the subjects’ levels in openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. The Confirmation Inventory was administered to determine the level of confirmation bias. It was predicted that people high in openness will score low in confirmation bias; people who score high in conscientiousness will score high in confirmation bias; high levels of agreeableness will result in low scores of confirmation bias; and the final hypothesis is people who score high in neuroticism will also score high levels of confirmation bias. It is predicted that a person's level of extraversion will not affect their level of confirmation bias. The low participant number caused non-significant results. Overall, no significant differences were found that illuminate the relationship between confirmation bias and personality. None of the comparisons were found to be significant at the .01 level.

Programmers compose programs in multiple languages to combine the advantages of innovations in new high-level programming languages with decades of engineering effort in legacy libraries and systems. For language inter-operation, language designers provide two classes of multilingual programming interfaces: (1) foreign function interfaces and (2) code generation interfaces. These interfaces embody the semantic mismatch for developers and multilingual systems builders. Their programming rules are difficult or impossible to verify. As a direct consequence, multilingual programs are full of bugs at interface boundaries, and debuggers cannot assist developers across these lines. This dissertation shows how to use composition of single language systems and interposition to improve the safety of multilingual programs. Our compositional approach is scalable by construction because it does not require any changes to single-language systems, and it leverages their engineering efforts. We show it is effective by composing a variety of multilingual tools that help programmers eliminate bugs. We present the first concise taxonomy and formal description of multilingual programming interfaces and their programming rules. We next compose three classes of multilingual tools: (1) Dynamic bug checkers for foreign function interfaces. We demonstrate a new approach for automatically generating a dynamic bug checker by interposing on foreign function interfaces, and we show that it finds bugs in real-world applications including Eclipse, Subversion, and Java Gnome. (2) Multilingual debuggers for foreign function interfaces. We introduce an intermediate agent that wraps all the methods and functions at language boundaries. This intermediate agent is sufficient to build all the essential debugging features used in single-language debuggers. (3) Safe macros for code generation interfaces. We design a safe macro language, called Marco, that generates programs in any language and demonstrate it by implementing checkers for SQL and C++ generators. To check the correctness of the generated programs, Marco queries single-language compilers and interpreters through code generation interfaces. Using their error messages, Marco points out the errors in program generators. In summary, this dissertation presents the first concise taxonomy and formal specification of multilingual interfaces and, based on this taxonomy, shows how to compose multilingual tools to improve safety in multilingual programs. Our results show that our compositional approach is scalable and effective for improving safety in real-world multilingual programs. / text

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