Evaluating Creative Choice in K-12 Computer Science Curriculum

Computer Science is an increasingly important topic in K-12 education. Ever since the computing crisis of the early 2000s, where enrollment in CS dropped by over half in a five year span, increasing research has gone into improving and broadening enrollment in CS courses. Research shows the importance of introducing CS at a young age and the need for more exposure for younger children and young adults alike in order to work towards equity in the field. While there are many reasons for disinterest in CS courses, studies found one reason young adults do not want to study CS is a perception of it being tedious and lacking opportunities for creativity. Making more creative assignments is one way to try and engage more students who may not feel like stereotypical computer scientists. This thesis focuses in on the effects of creative choice in CS curriculum on students\u27 self-efficacy, engagement/preferences, and performance. It aims to capture the effects of creative choice on a range of K-12 students of varying demographics in order to make CS more accessible for everyone. The first half of the thesis experimentally validates the effects of creative choice in existing 5th grade CS classes. We created two variants of worksheets for the students - creative worksheets and rigid worksheets. After distributing these worksheets, surveys, and quizzes, we found students still feel a sense of ownership with limited versions of creative choice and benefit from a blend of creative and rigid instructions. In addition, student performance was not affected by our different treatments. The second half of the thesis adapted and launched the fifth grade curriculum to a new demographic, teaching the course to Juvenile Hall students. Student surveys and reports from their teacher showed this class had a positive impact and was well received by students and staff. We found students would prefer a longer class next iteration, as this one only extended five weeks. Future work will be needed to experimentally evaluate the specific impact of creative choice in this new demographic

Briefing paper : assessing the Period Products (Free Provision) (Scotland) Act 2021 as model menstruation legislation

This paper is based on ‘Ending Period Poverty in Scotland: A Historical and International Perspective’ funded by the Royal Society of Edinburgh’s Arts and Humanities Research Network Award from 2020 to 2022 (grant number 64992), and administratively based at the University of St Andrews with Principal Investigator Bettina Bildhauer and Co-Investigators Sharra Vostral and Camilla Mørk Røstvik.This briefing paper discusses how to include historical perspectives to assess the potential success for current and future menstruation legislation. The case of Scotland provides an instructive example of law-making about free period products and period poverty. While commercial products are perceived as a solution, historical research suggests that cultural attitudes, lingering stigma, and regional differences affect opportunities for passing laws. To predict the likelihood that proposed menstrual product legislation might be adopted in other locations, historical factors related to attitudes about menstruation, including stigma, must be considered and understood to effect lasting change.Publisher PDFPeer reviewe

Introduction : The Period Products (Free Provision) (Scotland) Act 2021 in the context of menstrual politics and history

The research for this Special Collection volume was funded by a Royal Society of Edinburgh’s Arts and Humanities Research Network Award (64992).In January 2021, Scotland became the first country in the world to make universal access to free period products a legal right, an initiative which attracted extraordinary international attention. This introduction outlines what is indeed new and ground-breaking about this law from the perspective of the history of menstruation, and what merely continues traditional and widespread conceptions, policies and practices surrounding menstruation. On the basis of an analysis of the parliamentary debates of the Act, we show that it gained broad political support by satisfying a combination of ten different political agendas: (1) promoting gender equality for women, while also (2) acknowledging broader gender diversity; (3) taking practical steps to alleviate one high-profile aspect of poverty at a relatively low overall cost to the state, while also (4) stimulating the production of menstrual products; (5) tackling menstrual stigma; (6) improving access to education; (7) working with grassroots campaigners; (8) improving public health; and (9) accommodating sustainability concerns; as well as (10) the desire to pass world-leading legislation in itself. In each case, we explore the extent to which the political aim is typical of, or departs from, wider trajectories in the history and politics of menstruation, and, where pertinent, trajectories in Scottish political history. The ten agendas in their international context provide kaleidoscopic insight into the current state of menstrual politics and history in Scotland and beyond. This introduction also situates this Special Collection as a whole in relation to the field of Critical Menstruation Studies and provides background information about the legislative process and key terminology in Scottish politics and in the history of menstruation.Publisher PDFPeer reviewe

Ressursinnsats, utslipp og rensing i den kommunale avløpssektoren 1999

Denne rapporten sammenfatter de viktigste resultatene knyttet til økonomi i kommunal avløpssektor og rensing av avløpsvann fra kommunale kloakkrenseanlegg i 1999. Den gir en oversikt over beregnede kostnader, investeringer og gebyrer i avløpssektoren med hovedvekt på 1999. Tall fra tidligere år er også med for om mulig å avdekke trender. I tillegg oppsummerer den de viktigste trekkene ved avløpsbehandlingen, blant annet utslipp av fosfor og nitrogen fra renseanlegg og spredt bebyggelse, renseeffekt, antall avløpsanlegg, hydraulisk kapasitet, tilknytningsgrad, slamdisponering og innhold av tungmetaller i slam

Interplay between chronic widespread pain and lifestyle factors on the risk of type 2 diabetes: longitudinal data from the Norwegian HUNT Study

Introduction Chronic widespread pain (CWP) and diabetes commonly co-occur; however, it is unclear whether CWP infers an additional risk for diabetes among those with known risk factors for type 2 diabetes. We aimed to examine if CWP magnifies the effect of adverse lifestyle factors on the risk of diabetes. Research design and methods The study comprised data on 25 528 adults in the Norwegian HUNT Study without diabetes at baseline (2006–2008). We calculated adjusted risk ratios (RRs) with 95% CIs for diabetes at follow-up (2017–2019), associated with CWP and body mass index (BMI), physical activity, and insomnia symptoms. The relative excess risk due to interaction (RERI) was calculated to investigate the synergistic effect between CWP and adverse lifestyle factors. Results Compared with the reference group without chronic pain and no adverse lifestyle factors, those with BMI ≥30 kg/m2 with and without CWP had RRs for diabetes of 10.85 (95% CI 7.83 to 15.05) and 8.87 (95% CI 6.49 to 12.12), respectively; those with physical activity <2 hours/ week with and without CWP had RRs for diabetes of 2.26 (95% CI 1.78 to 2.88) and 1.54 (95% CI 1.24 to 1.93), respectively; and those with insomnia symptoms with and without CWP had RRs for diabetes of 1.31 (95% CI 1.07 to 1.60) and 1.27 (95% CI 1.04 to 1.56), respectively. There was little evidence of synergistic effect between CWP and BMI ≥30 kg/m2 (RERI=1.66, 95%CI −0.44 to 3.76), low physical activity (RERI=0.37, 95%CI −0.29 to 1.03) or insomnia symptoms (RERI=−0.09, 95%CI −0.51 to 0.34) on the risk of diabetes. Conclusions These findings show no clear interaction between CWP and adverse lifestyle factors on the risk of diabetes

Signatures of stirring and mixing near the Gulf Stream front

In October, 1986 the surface waters adjacent to the Gulf Stream front were surveyed with an undulating profiler to describe the finescale structure of the mixed layer. The profiler was a Seasoar equipped with a CTD and fluorometer. The survey first defined the structure of a cyclonic eddy which resembled frontal eddies of the South Atlantic Bight in sea surface temperature imagery. The Seasoar transects revealed, however, that the cyclonic eddy lacked a cold dome typically seen in frontal eddies. Farther downstream the Seasoar defined the structure of streamers of Gulf Stream and Shelf water wrapped about the southern edge of a warm-core ring. The streamers had lateral and along-axis dimensions on the order of ≈ 10 km and 100 km, respectively, and were bordered by narrow intrusive features. The temporal history of the streamers was described from SST imagery, and the surface flow derived from ship\u27s drift vectors. CTD casts taken while following an isopycnal float provided a means to examine the structure of the intrusive features. Interleaving was evident at the boundaries of the streamers and intrusive features where high conductivity Cox numbers were concentrated, suggesting elevated microstructure activity. The Turner angle distribution, indicating either saltfingering or diffusive convection, did not correlate well with the Cox number distribution. This is interpreted as evidence that lateral, rather than diapycnal, mixing was the process mediating the exchange of properties at the boundaries of contrasting water types. In contrast to physical properties, the distribution of fluorescence showed relatively less structure in the surface layer between the ring and Gulf Stream front. In the surface layers of the two streamers the pigment and bacterial biomass, and the diatom species composition, were typical of Slope water communities. We hypothesize that small-scale mixing processes concentrated at the boundaries of the streamers were the mechanism by which Slope water plankton were seeded into streamers of different hydrographic origins. Presumably, high netplankton growth rates allowed the Slope water species to dominate the communities in the streamers

Synchronization of spatiotemporal semiconductor lasers and its application in color image encryption

Optical chaos is a topic of current research characterized by high-dimensional nonlinearity which is attributed to the delay-induced dynamics, high bandwidth and easy modular implementation of optical feedback. In light of these facts, which adds enough confusion and diffusion properties for secure communications, we explore the synchronization phenomena in spatiotemporal semiconductor laser systems. The novel system is used in a two-phase colored image encryption process. The high-dimensional chaotic attractor generated by the system produces a completely randomized chaotic time series, which is ideal in the secure encoding of messages. The scheme thus illustrated is a two-phase encryption method, which provides sufficiently high confusion and diffusion properties of chaotic cryptosystem employed with unique data sets of processed chaotic sequences. In this novel method of cryptography, the chaotic phase masks are represented as images using the chaotic sequences as the elements of the image. The scheme drastically permutes the positions of the picture elements. The next additional layer of security further alters the statistical information of the original image to a great extent along the three-color planes. The intermediate results during encryption demonstrate the infeasibility for an unauthorized user to decipher the cipher image. Exhaustive statistical tests conducted validate that the scheme is robust against noise and resistant to common attacks due to the double shield of encryption and the infinite dimensionality of the relevant system of partial differential equations.Comment: 20 pages, 11 figures; Article in press, Optics Communications (2011

Human papillomavirus infection as a risk factor for anal and perianal skin cancer in a prospective study

Human papillomavirus has emerged as the leading infectious cause of cervical and other anogenital cancers. We have studied the relation between human papillomavirus infection and the subsequent risk of anal and perianal skin cancer. A case–cohort study within two large Nordic serum banks to which about 760 000 individuals had donated serum samples was performed. Subjects who developed anal and perianal skin cancer during follow up (median time of 10 years) were identified by registry linkage with the nationwide cancer registries in Finland and Norway. Twenty-eight cases and 1500 controls were analysed for the presence of IgG antibodies to HPV 16, 18, 33 or 73, and odds ratios of developing anal and perianal skin cancer were calculated. There was an increased risk of developing anal and perianal skin cancer among subjects seropositive for HPV 16 (OR=3.0; 95%CI=1.1–8.2) and HPV 18 (OR=4.4; 95%CI=1.1–17). The highest risks were seen for HPV 16 seropositive patients above the age of 45 years at serum sampling and for patients with a lag time of less than 10 years. This study provides prospective epidemiological evidence of an association between infection with HPV 16 and 18 and anal and perianal skin cancer