INFESTASI CAPLAK (Boophilus microplus) PADA TERNAK SAPI DI DESA PINABETENGAN KECAMATAN TOMPASO KABUPATEN MINAHASA

This research was conducted in Pinabetengan village to calculate the prevalence and preference of tick infestations in cattle in Pinabetengan Village, Tompaso District, Minahasa Regency. This study uses the Purposive Random Sampling method. 64 cattles were used as samples. Collecting ticks starts from the head, neck, back, groin, legs, and tail, then put in a bottle containing 70% alcohol based on the body parts of the animal. Based on the result research   that 30 cattles were found to be infested of tick. Preferences of ticks on body parts of cattle show that at the groin is the most infestation of ticks. The tick infestation preference based on sex it turn out that female cattle are more often infested with tick. Based on the results and discussion it can be concluded that the cattle in the North Pinabetengan village infested with Boophilus microplus tick is 46.9%. Preference for tick infestation on the body parts that are most commonly found in the groin of cattle. Preference for tick infestation in female cattle is 4.38 ticks, while male cattle are 3.33 ticks.Keywords: Ticks, Infestations, Preference, Prevalence, Co

Children’s time use in developing countries: Comparative evidence from Thailand, Philippines, Indonesia, and Vietnam

87 Session: Poster Session: Children and youth IIOrganizer: International Union for the Scientific Study of Population (IUSSP)Children’s time use is an important factor affecting human capital outcomes such as educational attainment and future employment. Thus far, little attention has been paid to how children’s time use varies across and within middle- and low-income countries compared to more economically-advanced countries. In this article, we use comparative survey data to examine children’s time use in four countries with varying degrees of development in the Asian region—the Philippines, Thailand, Indonesia, and Vietnam. We selected children’s time use as the key outcome and, based on previous literature, we hypothesize that child age and gender, and household characteristics influence the organization of children’s daily lives, in particular how they allocate their time between leisure, study (outside school), housework, and work that supplements family income. Using a series of OLS regression models, we find evidence of gendered time allocation, with girls generally more likely to perform housework and devote less time to leisure, while boys generally spend more time working to support the household and more time in leisure. Some of the gendered differences are attenuated within households with higher maternal education. The detailed results suggest nuanced processes differentiating the country samples, and we discuss both their theoretical and practical implications.postprin

Detection of multipartite entanglement with two-body correlations

We show how to detect entanglement with criteria built from simple two-body correlation terms. Since many natural Hamiltonians are sums of such correlation terms, our ideas can be used to detect entanglement by energy measurement. Our criteria can straightforwardly be applied for detecting different forms of multipartite entanglement in familiar spin models in thermal equilibrium.Comment: 5 pages including 2 figures, LaTeX; for the proceedings of the DPG spring meeting, Berlin, March 200

Migrations and habitat use of the smooth hammerhead shark (Sphyrna zygaena) in the Atlantic Ocean

The smooth hammerhead shark, Sphyrna zygaena, is a cosmopolitan semipelagic shark captured as bycatch in pelagic oceanic fisheries, especially pelagic longlines targeting swordfish and/or tunas. From 2012 to 2016, eight smooth hammerheads were tagged with Pop-up Satellite Archival Tags in the inter-tropical region of the Northeast Atlantic Ocean, with successful transmissions received from seven tags (total of 319 tracking days). Results confirmed the smooth hammerhead is a highly mobile species, as the longest migration ever documented for this species (> 6600 km) was recorded. An absence of a diel vertical movement behavior was noted, with the sharks spending most of their time at surface waters (0-50 m) above 23 degrees C. The operating depth of the pelagic long-line gear was measured with Minilog Temperature and Depth Recorders, and the overlap with the species vertical distribution was calculated. The overlap is taking place mainly during the night and is higher for juveniles (similar to 40% of overlap time). The novel information presented can now be used to contribute to the provision of sustainable management tools and serve as input for Ecological Risk Assessments for smooth hammerheads caught in Atlantic pelagic longline fisheries.Oceanario de Lisboa through Project "SHARK-TAG: Migrations and habitat use of the smooth hammerhead shark in the Atlantic Ocean"; Investigador-FCT from the Portuguese Foundation for Science and Technology (FCT, Fundacao para a Ciencia e Tecnologia) [Ref: IF/00253/2014]; EU European Social Fund; Programa Operacional Potencial Human

Denitrification and nitrous oxide emissions from riparian forests soils exposed to prolonged nitrogen runoff

Compared to upland forests, riparian forest soils have greater potential to remove nitrate (NO3) from agricultural run-off through denitrification. It is unclear, however, whether prolonged exposure of riparian soils to nitrogen (N) loading will affect the rate of denitrification and its end products. This research assesses the rate of denitrification and nitrous oxide (N2O) emissions from riparian forest soils exposed to prolonged nutrient run-off from plant nurseries and compares these to similar forest soils not exposed to nutrient run-off. Nursery run-off also contains high levels of phosphate (PO4). Since there are conflicting reports on the impact of PO4 on the activity of denitrifying microbes, the impact of PO4 on such activity was also investigated. Bulk and intact soil cores were collected from N-exposed and non-exposed forests to determine denitrification and N2O emission rates, whereas denitrification potential was determined using soil slurries. Compared to the non-amended treatment, denitrification rate increased 2.7- and 3.4-fold when soil cores collected from both N-exposed and non-exposed sites were amended with 30 and 60 μg NO3-N g-1 soil, respectively. Net N2O emissions were 1.5 and 1.7 times higher from the N-exposed sites compared to the non-exposed sites at 30 and 60 μg NO3-N g-1 soil amendment rates, respectively. Similarly, denitrification potential increased 17 times in response to addition of 15 μg NO3-N g-1 in soil slurries. The addition of PO4 (5 μg PO4–P g-1) to soil slurries and intact cores did not affect denitrification rates. These observations suggest that prolonged N loading did not affect the denitrification potential of the riparian forest soils; however, it did result in higher N2O emissions compared to emission rates from non-exposed forests

Proposal for measurment of harmonic oscillator Berry phase in ion traps

We propose a scheme for measuring the Berry phase in the vibrational degree of freedom of a trapped ion. Starting from the ion in a vibrational coherent state we show how to reverse the sign of the coherent state amplitude by using a purely geometric phase. This can then be detected through the internal degrees of freedom of the ion. Our method can be applied to preparation of Schr\"odinger cat states.Comment: Replaced with revised versio