INFESTASI CAPLAK PADA SAPI DI DESA TOLOK KECAMATAN TOMPASO KABUPATEN MINAHASA

INFESTATION OF TICKS ON CATTLE IN TOLOK VILLAGE TOMPASO DISTRICT, MINAHASA. The tick is one of the most commonly encountered ectoparasites on livestock and can degrade its quality and quantity significantly. Risks caused by tick infestation include local skin damage, anemia, paralysis due to toxins, and disease transmission. A research project on tick infestation was conducted for 1 (one) month in Tolok Village of the Minahasa District due to counted the prevalence of tick infestation on cattle, the preference of tick infestation based on body parts, sex and age. The research used the survey method, in which tick samples were collected during the day, preserved in a 70% alcohol solution, and then counted in the laboratory of Faculty of Animal Science, Sam Ratulangi University of Manado. The results showed that tick infestation on cattle in Tolok Village yielded  100% prevalence  (all the cattle observed (n=53) were infested by ticks). Infestation preference based on body parts showed the highest on the crotch region (average 6,70 ticks) compared on  the head  ( average 1,75 ticks ),  the neck (average 5,55 ticks), the back ( average 3,4 ticks), 4,44 ticks on the abdomen ( average 4,44 ticks), and the legs (1,11 ticks). Infestation preference based on sex showed the highest on female (32,05 ticks) compared   on male (20,65 ticks). Finally, based on the cattles’ age, the infestation preference were a average of 27 ticks on calfs and 26,15 ticks on adult cattles. Higher infestation preference was found in calfs rather than adult cattle.Keywords: Infestation, Tic

Jenis-Jenis Ikan Di Padang Lamun Pantai Tongkaina

Padang lamun memilki berbagai peranan dalam kehidupan ikan dimana padang lamun dapat dijadikan daerah asuhan (nursery ground), sebagai tempat mencari makan (feeding ground), dan daerah untuk mencari perlindungan. Untuk spesies lamunnya sendiri dapat merupakan makanan langsung bagi ikan. Peranan lamun adalah sebagai daerah asuhan, dimana sebagian besar ikan penghuni padang lamun adalah ikan-ikan juvenil apabila telah dewasa akan menghabiskan hidupnya pada tempat lain.Jenis ikan yang yang di dapat pada padang lamun pantai Tongkaian dengan menggunakan survey jelajah dan alat tangkap gil net yaitu 10 jenis ikan. 10 jenis ikan yang di dapat pada saat penelitian di padang lamun pantai tongkaiana adalah umumnya penghuni daerah padang lamun dan ada juga ikan yang hanya mencari makan di daerah padang lamun atau ikan penghuni terumbu karang.Jenis lamun yang paling dominan di padang lamun pantai Tongkaina yaitu 2 jenis lamun. Kedua jenis lamun tersebut adalah lamun Enhalus acroides dan Thalassia hemprichii

“KNOWLEDGE MANAGEMENT” PADA KELOMPOK TANI KARYA BERSAMA, DI DESA TOMBASIAN ATAS KECAMATAN KAWANGKOAN BARAT, KABUPATEN MINAHASA

The purpose of this paper is to know the Knowledge Management of “Karya Bersama” farmers group at Tombasian Atas Village, Kawangkoan West, Minahasa District. This research was conducted from April to July 2016. The data used in this research are primary and secondary data. The variables measured were knowledge identification, knowledge creation, knowledge presentation and knowledge distribution. The analysis used is descriptive qualitative analysis by using content analysis. The results showed that the identification of group knowledge through cultivation, mass media, experience, TV media, newspapers and books, the presence of extension workers and among group members. Knowledge creation occurs through regular meetings among farmer groups. Knowledge presentation is carried out by exploiting technology utilization, demonstrating farming tools and distributing the knowledge gained.*lrr

Effective Spin Quantum Phases in Systems of Trapped Ions

A system of trapped ions under the action of off--resonant standing--waves can be used to simulate a variety of quantum spin models. In this work, we describe theoretically quantum phases that can be observed in the simplest realization of this idea: quantum Ising and XY models. Our numerical calculations with the Density Matrix Renormalization Group method show that experiments with ion traps should allow one to access general properties of quantum critical systems. On the other hand, ion trap quantum spin models show a few novel features due to the peculiarities of induced effective spin--spin interactions which lead to interesting effects like long--range quantum correlations and the coexistence of different spin phases.Comment: 11 pages, 13 figure

Vortex Tunneling and Transport Theory In Two-Dimensional Bose Condensates

The tunneling rate t_v of a vortex between two pinning sites (of strength V separated by d) is computed using the Bogoliubov expansion of vortex wavefunctions overlap. For BCS vortices, tunneling is suppressed beyond a few Fermi wavelengths. For Bose condensates, t_v = V exp(- pi n_s d^2/2), where n_s is the boson density. The analogy between vortex hopping in a superconducting film and 2D electrons in a perpendicular magnetic field is exploited. We derive the variable range hopping temperature, below which vortex tunneling contributes to magneto-resistance. Using the 'Quantum Hall Insulator' analogy we argue that the -Hall conductivity- (rather than the inverse Hall resistivity) measures the effective carrier density in domains of mobile vortices. Details of vortex wavefunctions and overlap calculations, and a general derivation of the Magnus coefficient for any wavefunction on the sphere, are provided in appendices.Comment: A revised manuscript, including new predictions for observing vortex tunneling effects in cold atoms and superconducting film

Elimination of Transcoarctation Pressure Gradients Has No Impact on Left Ventricular Function or Aortic Shear Stress After Intervention in Patients With Mild Coarctation

Objectives: This study sought to investigate the impact of transcatheter intervention on left ventricular function and aortic hemodynamics in patients with mild coarctation of the aorta (COA). Background: The optimal method and timing of transcatheter intervention for COA remains unclear, especially when the severity of COA is mild (peak-to-peak transcoarctation pressure gradient  < 20 mm Hg). Debate rages regarding the risk/benefit ratio of intervention versus long-term effects of persistent minimal gradient in this heterogeneous population with differing blood pressures, ventricular function, and peripheral perfusion. Methods: We developed a unique computational fluid dynamics and lumped parameter modeling framework based on patient-specific hemodynamic input parameters and validated it against patient-specific clinical outcomes (before and after intervention). We used clinically measured hemodynamic metrics and imaging of the aorta and the left ventricle in 34 patients with mild COA to make these correlations. Results: Despite dramatic reduction in the transcoarctation pressure gradient (catheter and Doppler echocardiography pressure gradients reduced by 75% and 47.3%, respectively), there was only modest effect on aortic flow and no significant impact on aortic shear stress (the maximum time-averaged wall shear stress in descending aorta was reduced 5.1%). In no patient did transcatheter intervention improve left ventricular function (e.g., stroke work and normalized stroke work were reduced by only 4.48% and 3.9%, respectively). Conclusions: Transcatheter intervention that successfully relieves mild COA pressure gradients does not translate to decreased myocardial strain. The effects of the intervention were determined to the greatest degree by ventricular–vascular coupling hemodynamics and provide a novel valuable mechanism to evaluate patients with COA that may influence clinical practice. Key Words: aortic hemodynamics, left ventricle function, mild coarctation, peak-to-peak pressure gradient, transcatheter interventionNational Institute of Mental Health (U.S.) (R01 GM 49039)American Heart Association (Postdoctoral Fellowship 16POST26420039

Grasping the nettle? Considering the contemporary challenges of risk assessment

The process of risk regulation is crucial across a range of institutions, sectors and industries. Regulatory bodies worldwide are confronted with a plethora of challenges in managing risks and uncertainties. The precise sources of these challenges are diverse, but are commonly associated with the degree of confidence in predicting and quantifying risks. When the level of confidence is high, regulators tend to specify the outputs and take quantitatively informed preventive measures. However, when levels of confidence are lower, regulators may favour an inflection toward more qualitative considerations of risks to inform resilience building and absorption of adverse consequences. As part of an ongoing research project designed to explore the potentialities of developing a holistic framework for risk assessment which blends qualitative and quantitative methods, this article maps out the key challenges involved in evaluation and decision-making within risk regulatory bodies. In defining the problems and issues faced both by organizations in general and practitioners involved in everyday assessment and management of risk, we have developed a heuristic designed to assist in understanding, categorising and evaluating risk. It is anticipated that the development of knowledge in this area can contribute toward progressive process modifications, improved decision-making at senior management level, and enhance risk management practices amongst regulatory agencies. The project involved semi-structured interviews with practitioners working in risk regulatory bodies from the UK, Germany, France, Belgium, the Netherlands and New Zealand. In coalescing the findings of empirical studies, the sources of these challenges were discussed as being related to rational, technical and expert factors. The main areas of analysis focused on in this article revolve around the process of evaluation, organisational strategies, structural factors and expert perceptions

Superconductivity and Quantum Spin Disorder in Cuprates

A fundamental connection between superconductivity and quantum spin fluctuations in underdoped cuprates, is revealed. A variational calculation shows that {\em Cooper pair hopping} strongly reduces the local magnetization $m_0$. This effect pertains to recent neutron scattering and muon spin rotation measurements in which $m_0$ varies weakly with hole doping in the poorly conducting regime, but drops precipitously above the onset of superconductivity