Articles

    1. Tadpole fingerprinting: Using tail venation patterns to photo‐identify tadpole individuals of a... 2023

      Gould, John; Taylor, James; Davies, Bryce; Donelly, Rachael; Schmahl, Kate...

      Austral Ecology, Vol. 48, Issue 3, pp. 585 - 599.

      Traditional methods for identifying individual amphibians in capture–mark–recapture (CMR) studies have been primarily confined to post‐metamorphic stages, using artificial markers that come with a ... Read more

      Traditional methods for identifying individual amphibians in capture–mark–recapture (CMR) studies have been primarily confined to post‐metamorphic stages, using artificial markers that come with a variety of limitations. An alternative that may open CMR studies to earlier life stages involves the use of a species' natural external markers in photo‐based identification. In this study, we investigated whether it was possible to distinguish tadpoles of the threatened green and golden bell frog (Litoria aurea) at the individual level based on tail venation patterns. We collected photographs of the tails of captive‐raised tadpoles using a smartphone over a 4‐week period. This photo‐library was used to create an electronic survey where participants were asked to detect matches for query tadpoles from small image pools. We found that most participants agreed on a match for each query, with perfect consensus achieved for most queries (83%). We detected a 14% decline in perfect consensus when participants were asked to match images of tadpoles separated by longer time intervals, suggesting that it is more difficult to visually identify recapture events of L. aurea tadpoles over extended periods due to changes to tail appearance. However, consensus was obtained by participants for all queries, with all matches verified as being correct by the primary researcher. The strength of agreement among participants with no prior experience in matching tadpole tails suggests that there is sufficient inter‐individual variation in this feature for individuals to be manually identified. We thus propose that photo‐identification is likely to be a valid, non‐invasive technique that can be used for short‐term studies on tadpole populations that display tail venation. This offers an alternative to artificial markers that may not allow for individual identification, while also opening up tadpole monitoring programmes to citizen scientists who can be recruited online to process image data from home. Among amphibians, photo‐identification has primarily been used to differentiate adult individuals, with few studies on earlier life stages. We show that tadpoles of the threatened green and golden bell frog (Litoria aurea) possess vein branches across their translucent tails that are temporally stable and allow manual identification down to the individual level in recapture photographs. Our findings thus indicate that tail venation could be an effective natural marker for conducting tadpole population studies for amphibian species with this feature and that there is strong potential for the process to be adapted for citizen science in the field. Read less

      Journal Article  |  Full Text Online

    2. What Would Jesus Haul?: Home, Work, and the Politics of Masculinity among Christian Long-Haul... 2015

      Upton, Rebecca L

      Work And Family In The New Economy, Vol. 26, pp. 101 - 126.

      Abstract Purpose This chapter explores how long-distance truckers in the contemporary United States navigate work and family obligations. It examines how Christianity and constructions of masculini... Read more

      Abstract Purpose This chapter explores how long-distance truckers in the contemporary United States navigate work and family obligations. It examines how Christianity and constructions of masculinity are significant in the lives of these long-haul drivers and how truckers work to construct narratives of their lives as “good, moral” individuals in contrast to competing cultural narratives which suggest images of romantic, rule-free, renegade lives on the open road. Methodology/approach This study is based upon ethnographic fieldwork, interviews, observations of long-haul truckers, and participation in a trucking school for eight months in 2005–2006 and an additional four months in 2007–2008. Using feminist grounded theory, I highlight how Christian trucking provides avenues through which balance is struck between work and family and between masculinity and other identities. Findings Christian truckers draw upon older ideas about responsible, breadwinning fatherhood in their discourse about being good “fathers” while on the road. This discourse is in some conflict with the lived experiences of Christian truckers who simultaneously find themselves confronted by cultural narratives and expectations of what it means to be a good “worker” or a good “trucker.” As these men navigate both work and social locations, gender expectations are challenged and strategies to ameliorate the work/family balance are essential. Originality/value of chapter The chapter contributes to discourse on gender studies as well as to the reshaping of ideology and practices of work and family in contemporary American culture. Read less

      Book Chapter  |  Full Text Online

    3. Realistic operation of two residential cordwood-fired outdoor hydronic heater appliances-Part 1:... 2022

      Trojanowski, Rebecca; Lindberg, Jake; Butcher, Thomas; Fthenakis, Vasilis

      Journal Of The Air & Waste Management Association (1995), Vol. 72, Issue 7, pp. 738 - 761.

      This study investigated how heat demand and fuel loading affect the emissions from outdoor wood-fired hydronic heaters by testing two such appliances using an integrated-duty cycle test method. Thi... Read more

      This study investigated how heat demand and fuel loading affect the emissions from outdoor wood-fired hydronic heaters by testing two such appliances using an integrated-duty cycle test method. This test included transient operating conditions, such as cold and hot-starts and modulation between 15 and 100% of maximum rated output. Emission values indicate transient operating conditions produce higher emissions than steady state operation. Cold starts resulted in elevated particulate matter emission factors for both appliances; in one case the particulate matter emission factor for this period was >3500 mg/MJ, which represented emissions 20 times the average value. Additionally, when heat demand was cycled-elevated CO emission factors were measured, with values >5000 mg/MJ for both appliances and more than 3 times the appliance averages, respectively. It follows that the appliance average particulate matter emission factors and CO emission factors were not representative of the actual EF values during these transient periods. In contrast, methane emission factors were relatively stable throughout all tested combustion conditions; however, they were much higher than oil-fired appliances are therefore should not be ignored. These findings demonstrate that wood-fired hydronic heater emissions during transient operating conditions can be significantly greater than emissions during steady-state test conditions, such as those used in typical certification tests. Consequently, certification test values for particulate matter and CO emission factors may significantly underestimate the actual emissions of these appliances when operated in a home. Use of integrated duty-cycle test protocols that capture cold-starts and reloading are better for representing in-use operations of wood-fired hydronic heaters and provide more realistic emissions and delivered efficiency measurements. Implications: In this work we provide information on the particulate and gaseous emissions from two wood fired outdoor hydronic heaters. The units were tested using an integrated duty cycle test method that captured cold starts, reload, cyclic and modulating periods between 15 and 100% of maximum rated output. The data and results show a much higher emission factor than those reported by current certification test methods but are more representative of how the units operate in the field. Read less

      Journal Article  |  Full Text Online

    See all 7 article results

    Books & Media

    1. Sustainable urbanism : urban design with nature

      Douglas Farr.

      Design HT241 .F37 2007 | Book

    2. Risk assessment for environmental health

      Mark Robson, William Toscano, editors.

      Hill RA427.3 .R569 2007 | Book

    See 2 books & media results


    Other Ways to Find Articles

    Journals

    1. London Forest Gate Gazette and Upton Chronicle

    2. Journal of consumer studies & home economics

    See all 8,082 journal results

    Databases

    1. Trade catalogues and the American home

    2. NC LIVE home grown eBook collection

    3. LGBT studies in video

    Browse databases by name or subject

    Databases by Subject

    1. Horticulture

    2. Plant Biology

    3. Textile & Apparel Management

    Browse databases by name or subject


    1. Mistakes to Avoid When Obtaining Your PMP Certification

      Discover effective study strategies to avoid common mistakes when preparing to obtain your Project Management Professional (PMP) certification.

      Discover effective study strategies to avoid common mistakes when preparing to obtain your Project Management Professional (PMP) certification. Read less

    2. Banjo Lessons: 4 Improvisation and Melodic Styles

      Learn banjo from award-winning banjo player and teacher Tony Trischka. In part 4, explore melodic-style scale patterns, single-string scales, and alternating thumb roll techniques.

      Learn banjo from award-winning banjo player and teacher Tony Trischka. In part 4, explore melodic-style scale patterns, single-string scales, and alternating thumb roll techniques. Read less

    3. Banjo Lessons: 1 Fundamentals

      Learn how to play banjo with an award-winning banjo player and teacher. Part 1 covers fundamentals like holding and tuning a banjo, reading music, and basic finger picking.

      Learn how to play banjo with an award-winning banjo player and teacher. Part 1 covers fundamentals like holding and tuning a banjo, reading music, and basic finger picking. Read less

    See all LinkedIn Learning results

    Get Help

    We didn't find any staff who match your query, but know that we're here to help.

    Ask Us (chat, text, email)

    Search the Libraries' Staff Directory

    Information About the Libraries

    Our Website

    1. DIY/DEI: Women + Equity in Higher Education

      intersectionality (or its policing) at the cost of their own intellectual, emotional, and spiritual health and growth. A great exploration of the institution building of women’s studies

      intersectionality (or its policing) at the cost of their own intellectual, emotional, and spiritual health and growth. A great exploration of the institution building of women’s studies Read less

    2. Untitled-2

      books, moderated by NC State scholars, had another great lineup last fall. Beginning with a discussion of Toni Morrison’s novel Home, and closing with a discussion

      books, moderated by NC State scholars, had another great lineup last fall. Beginning with a discussion of Toni Morrison’s novel Home, and closing with a discussion Read less

    3. FocusVol.30no.4.sm__1.pdf

      it for you. Trying a challenging home repair? Just log into a website and have a master carpenter use the tiny camera on your glasses to see exactly what you are looking

      it for you. Trying a challenging home repair? Just log into a website and have a master carpenter use the tiny camera on your glasses to see exactly what you are looking Read less

    See all 158 website results