218 research outputs found
Epidemiological reflections on bovine viral diarrhoea virus control in Belgian cattle herds based on experimental infections and observational studies
No full textNutrient inputs from seabirds and humans on a populated coral cay
No full textInputs of inorganic nutrients in 1992 from seabirds (maximum of ca 80 000 breeding pairs) are compared to inputs from humans (97 700 person days) on Heron Island at the southern end of the Great Barrier Reef, Australia. Noddies deposited ca 107 t, and shearwaters ca 22 t, of fresh guano. The composition of fresh noddy guano was 7.3% N, 1.5% P, 60% moisture and 31.2% other substances. Assuming a similar composition for shearwaters, the total annual deposition of guano contained 9.4 t nitrogen and 1.9 t phosphorus. Although inputs of N and P from human sewage into the cay system (ca 0.3 t of each) were much less than that from birds, all nutrients from humans are released in liquid form and percolate directly into the cay. Nutrients may be transported from guano on Heron Island into the water immediately surrounding the island. -from Author
Vaping and Instagram: A content analysis of e-Cigarette posts using the Content Appealing to Youth (CAY) Index
No full textThe promotion of flavors, perceptions of “coolness,” and general curiosity are characteristics of electronic nicotine delivery systems (ENDS) that have appealed to young adults. However, little is known about the characteristics of popular social media posts related to ENDS on the social media network, Instagram. Methods: Content analysis was performed using the Content Appealing to Youth (CAY) index. Over 700 posts were collected from August 2019 – December 2019 by searching the Instagram hashtags, #vape and #vapelife. Frequencies and percentages were calculated for each of the six major categories and 35 sub-categories. Results: Nearly all of the images were color photographs and 84% featured an ENDS device (mod) as the focal point. The style of the device was often matte (75%) in only one or two main colors (55%). Warnings about age restrictions and nicotine were included in 28% of images, but commonly used promotional tactics, such as humor, presence of vapor puffs, and flavors were rarely utilized. Conclusions: Instagram posts featuring ENDS are visually appealing and like cigarette packaging, may have the capacity to influence perceptions about the product. Since it is culturally normative for appealing images to be shared on Instagram, greater attention should be placed on media literacy skills to educate young adults about ENDS viewed on social media.Journal ArticlePublishe
CAY HILL: The possibilities of creating a synergy between an informal settlement, local craftmanship and cultural economic opportunities on Sint Maarten
No full textOn September 6th of 2017 Sint Maarten got struck by Hurricane Irma, which caused severe damage to the houses, especially to the informal settlements. Sint Maarten is a Caribbean island with a rooted past from its history that has caused severe economic difficulties. Along with, a high amount of migration that has been common among he islands, Sint Maarten has a tourism-led economy. In Turn, the hurricane also affected the tourism-led economy as many visits to the island declined. Lots of building materials on the island are getting imported. The island is lacking of local building resources and knowlegde. This project aims to propose an alternative housing solution and local economic business model for the people living in the informal settlement Cay Hill. This study is investigating the possibilities of creating a synergy between an informal settlement, local craftmanship and cultural economic opportunities on Sint Maarten.Architecture, Urbanism and Building Science
Trail log - 2015
No full textMay, Wuhan, China, Conference, Chinese Environmental Ethics, and trip to Three Gorges Dam. June, Pomona, California, Conference "Seizing an Alternative: Toward an Ecological Civilization," Claremont colleges, John Cobb, Bill McKibben, Vandana Shiva, Wes Jackson. June, Bahamas, Nassau, Templeton Foundation Meeting, and Powerboat Adventure, trip to Allen's Cay and Ship Channel Cay. July, trip to Kiel Germany, and International Society for Environmental Ethics, meeting at Christian-Albrechts-Universitët. Field trips to Dasenmoor, peat bog, and Wadden Sea, intertidal zone, tidal flats and wetlands. October, trip to Virginia to speak at Westminster Canterbury Richmond and to Shenandoah National Park and Shenandoah Valley. Local hikes and trips
Comparison of PRRSV Nucleic Acid and Antibody Detection in Pen-Based Oral Fluid and Individual Serum Samples in Three Different Age Categories of Post-Weaning Pigs from Endemically Infected Farms.
No full textBackgroundPorcine reproductive and respiratory syndrome virus (PRRSV) is the causative agent of an economically important disease in swine. Since it has been shown that PRRSV and PRRSV specific antibodies can be detected in oral fluid, many different aspects have been studied to show that oral fluid could be a worthy alternative diagnostic sample to serum for monitoring and surveillance of this disease. Thorough field evaluations are however missing to convincingly show its usefulness under representative field conditions.MethodologyPen-based oral fluid samples and serum samples from all individual pigs in the corresponding pens were collected from post-weaning pigs of three different age categories in eight endemically PRRSV infected farms and one PRRSV free farm in Belgium. All samples were tested by quantitative reverse transcription polymerase chain reaction (qRT-PCR) and ELISA to detect PRRSV RNA and PRRSV specific antibodies, respectively.ResultsWhile the relative specificity of PRRSV detection by qRT-PCR in pen-based oral fluid compared to serum collected from individual pigs was high in all age categories (>90%), the relative sensitivity decreased with the age of the pigs (89, 93 and 10% in 8-12w, 16-20w and 24-28w old pigs, respectively). The latter correlated with a lower percentage of PRRSV positive pigs in serum/pen in the different age categories (55, 29 and 6%, respectively). Irrespective of the age category, pen-based oral fluid samples were always found PCR positive when at least 30% of the individual pigs were positive in serum. PRRSV specific antibody detection in oral fluid by ELISA showed a 100% relative sensitivity to detection in serum since oral fluid samples were always positive as soon as one pig in the pen was positive in serum. On the other hand, two false positive oral fluid samples in 11 pens without serum positive pigs were found, resulting in a relative specificity of 82%. Indications are however present that the oral fluid result indicated the correct infection status but the absence of a golden standard test makes it difficult to define definitive test characteristics.ConclusionsOverall it can be concluded that oral fluid seems to be a useful matrix for diagnosis of PRRSV under field conditions and that differences in kinetics of PRRSV and PRRSV specific antibody detection in oral fluid and serum of individual pigs can also be reflected in pen-based oral fluid results
The Turkish Tea Garden: Exploring a 'Third Space' with cultural resonances
No full textThis article examines the history, use, and significance of the Turkish Tea Garden or Cay Bahcesi, positing that these gardens offer unique democratic spaces for public discourse set within the polis. The article unpacks the historical, cultural, and symbolic features of these gardens, and the role these shared spaces play in Turkey’s multivalent civic environment. It employs Ray Oldenburg’s notion of “third space” to consider how these gardens provide inclusive settings for a culturally diverse citizenry. Furthermore, the article considers how these spaces act as repositories of shared memory, mediating conflict that appears in other societal spheres. The gardens are presented as uniquely “sacred” third spaces, distinct from the “profane” third spaces characterized by Oldenburg.Accepted Author ManuscriptSpatial Planning and Strateg
Typical Frobenius coverings
No full textA covering p from a Cayley graph Cay(G, X) onto another Cay(H, Y) is called typical Frobenius if G is a Frobenius group with H as a Frobenius complement and the map p: G -> H is a group epimorphism. In this paper, we emphasize on the typical Frobenius coverings of Cay(H, Y). We show that any typical Frobenius covering Cay(G, X) of Cay(H, Y) can be derived from an epimorphism (f) over bar from G to H which is determined by an automorphism f of H. If Cay(G, X (1)) and Cay(G, X (2)) are two isomorphic typical Frobenius coverings under a graph isomorphism phi, some properties satisfied by phi are given.Mathematics, AppliedMathematicsSCI(E)中国科技核心期刊(ISTIC)中国科学引文数据库(CSCD)0ARTICLE112209-22142
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