13 research outputs found

    Drift Rates of Major Neptunian Features between 2018 and 2021

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    Using near-infrared observations of Neptune from the Keck and Lick Observatories, and the Hubble Space Telescope in combination with amateur datasets, we calculated the drift rates of prominent infrared-bright cloud features on Neptune between 2018 and 2021. These features had lifespans of 1\sim 1 day to \geq1 month and were located at mid-latitudes and near the south pole. Our observations permitted determination of drift rates via feature tracking. These drift rates were compared to three zonal wind profiles describing Neptune's atmosphere determined from features tracked in H band (1.6 μm\mu m), K' band (2.1 μm\mu m), and Voyager 2 data at visible wavelengths. Features near 70deg-70 \deg measured in the F845M filter (845nm) were particularly consistent with the K' wind profile. The southern mid-latitudes hosted multiple features whose lifespans were \geq1 month, providing evidence that these latitudes are a region of high stability in Neptune's atmosphere. We also used HST F467M (467nm) data to analyze a dark, circumpolar wave at 60deg- 60 \deg latitude observed on Neptune since the Voyager 2 era. Its drift rate in recent years (2019-2021) is 4.866±0.009deg4.866 \pm 0.009 \deg /day. This is consistent with previous measurements by Karkoschka (2011), which predict a 4.858±0.022deg4.858 \pm 0.022 \deg/day drift rate during these years. It also gained a complementary bright band just to the north.Comment: 29 pages, 13 figures, accepted to Icaru

    Sexual behaviour profile of a diverse group of urban youth: An analysis of the Toronto Teen Survey

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    The objective of this study was to document the sexual behaviour of an ethnoculturally diverse sample of 1,200 urban youth and to assess the association of their experience of 11 behaviours with such factors as age, gender, immigration, race, religion, location of sexual education and sexual orientation. Grouping of these behaviours into three "risk" categories also permitted a similar assessment based on the "highest" risk category that youth had experienced. The descriptive and statistical findings in relation to race, religion, immigration status, and sexual orientation provide a basis for strengthening sexual health programming for urban youth. They also highlight the need to pay close attention to issues of vulnerability and stereotyping when reflecting on who is and is not engaging in various sexual behaviours

    Exposure to and desire for sexual health education among urban youth: Associations with religion and other factors

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    This study utilized data from the Toronto Teen Survey to examine the sexual health topics that respondents had received information about and the topics they did or did not want to learn more about. Given the diverse sample of youth participating in the study, we placed particular emphasis in the current analysis on associations between religious affiliation and having received information on eight different sexual health topics, and the desire to learn more about the same topics. Overall, there were few associations of religious affiliation with either topics youth had received information about or with topics they wanted to learn more. Protestant youth were more likely than those with no religious affiliation to have received information about sexually transmitted infections. Muslim youth were less likely to express a desire to learn more about sexual health than those identifying no religion. Gender and age differences in sexual health topics that youth had received information about and topics they wanted to learn more about were also examined

    Obstacles to sexual health services for youth: Service providers' perspectives

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    In 2006/2007, the Toronto Teen Survey investigated barriers and facilitators to youth (ages 13 to 18+) access to sexual health services. The results of the surveys were presented to 13 focus groups of 80 service providers (SPs) from 55 agencies around the Greater Toronto Area. Funding and resource allocation were seen as primary barriers to providing adequate sexual health promotion and services. Coding and analysis of focus group transcripts identified two primary categories of concern: (1) Distribution and Amount of Resources (including lack of funding, length of funding agreements, and increased competition for scarce financial resources among service providing organizations and agencies); and (2) Resources for Specific Services (including peer education, translation services, and targeting specific populations of youth). SPs recommendations for change included: approachable staff; school-based outreach; increased accessibility and visibility; peer-to-peer outreach; increased and constant funding; and sharing and partnerships among SPs. Implications for the improvement of youth sexual health services and promotion are discussed

    Service provider views on issues and needs for lesbian, gay, bisexual, and transgender youth

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    Lesbian, gay, bisexual, and transgender (LGBT) youth require appropriate, effective, and accessible sexual health services. Sexual minority youth living in large urban, multicultural cities have a complex range of service needs. As part of the Toronto Teen Survey, focus groups were conducted with 80 service providers from 55 agencies in the Greater Toronto Area to elicit their input concerning the changing service needs of LGBT youth, their increasing complexity as a client group, and obstacles to working effectively with them. Issues that arose in the focus groups included addressing the needs of LGBT youth across a large city that includes suburban areas, the need to address the specific service needs of transgender youth, and the intersection of racial and ethno-cultural diversity with sexual orientation. Service provider recommendations focused on the need for improved education and training and policy change at the agency level

    UQ Open Science Conference 2018

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    This is a collection of resources and presentations for the Open Science Conference held at the University of Queensland, 24-25 September 201
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