6,575 research outputs found
Deliverable 2 (SustainAQ)
The European Project SustainAQ (Framework 6) aims to identify the limiting factors for the sustainable production of aquatic origin food in Eastern Europe. It focuses on the possible use of Recirculation Aquaculture Systems (RAS) as sustainable method for the production of aquatic animals as mentioned in the communication of the European Commission on Aquaculture in 2009. RASs already exist mainly in western countries and proved economically feasible. RASs allow controlling the production process including effluents, biosecurity and escapes. Eastern European countries are facing challenges related to their excessive water use waste emission, and others. Therefore, these countries are potential beneficiaries of improved sustainability through RAS use. This project intends to assess the benefits of introducing and applying RAS for Eastern European aquaculture. This project involves three Western European countries (Norway, the Netherlands and France) and six East European countries (Croatia, Turkey, Romania, Hungary, Czech Republic and Poland). Ten research institutions collaborate in different tasks (coordination, data collection, data analysis, etc.), and nine small-medium enterprises (SME) participate in data mining (Table 1). The present data is therefore based on the situation in those countries during 2006 till 2008 before the report got finally compiled in 2008/2009
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Assessing the potential economic benefits to farmers from various GM crops becoming available in the European Union by 2025: results from an expert survey
This paper reports on a study that identified a range of crop-trait combinations that are: agronomically suited to the EU; provide advantages to arable farmers and consumers; and are either already available in international markets, or advancing along the development pipeline and likely to become available by 2025. An expert stakeholder panel was recruited and asked for their views, using the Delphi approach, on the impact of these crop-traits on enterprise competitiveness, through changes to yields, production costs and product prices. In terms of input traits, there was consensus that traits such as herbicide tolerant/insect resistant (HT/IR) maize, HT sugar beet and HT soya bean would provide positive benefits for farmers. Output-side traits such as winter-sown rape with reduced saturated fats, were seen as offering benefits to consumers, but were either likely to be restricted to niche markets, or offer relatively modest price premia to farmers growing them. Our analysis of the financial impact of the adoption of GM crops more widely in the EU, showed that the competitiveness of the agricultural sector could well be improved by this. However, such improvements would be relatively small-scale in that large-scale national natural advantages from either economic or environmental conditions is unlikely to be overturned
The ILR School at Fifty: Voices of the Faculty, Alumni & Friends (Full Text)
A collection of reflections on the first fifty years of the School of Industrial and Labor Relations at Cornell University. Compiled by Robert B. McKersie, J. Gormly Miller, Robert L. Aronson, and Robert R. Julian. Edited by Elaine Gruenfeld Goldberg. It was the hope of the compilers that the reflections contained in this book would both kindle memories of the school and stimulate interest on the part of future generations of ILRies who have not yet shared in its special history.
Dedicated to the Memory of J. Gormly Miller, 1914-1995.
Copyright 1996 by Cornell University. All rights reserved
High Resolution Simulations of the Plunging Region in a Pseudo-Newtonian Potential: Dependence on Numerical Resolution and Field Topology
New three dimensional magnetohydrodynamic simulations of accretion disk
dynamics in a pseudo-Newtonian Paczynski-Wiita potential are presented. These
have finer resolution in the inner disk than any previously reported. Finer
resolution leads to increased magnetic field strength, greater accretion rate,
and greater fluctuations in the accretion rate. One simulation begins with a
purely poloidal magnetic field, the other with a purely toroidal field.
Compared to the poloidal initial field simulation, a purely toroidal initial
field takes longer to reach saturation of the magnetorotational instability and
produces less turbulence and weaker magnetic field energies. For both initial
field configurations, magnetic stresses continue across the marginally stable
orbit; measured in units corresponding to the Shakura-Sunyaev alpha parameter,
the stress grows from ~0.1 in the disk body to as much as ~10 deep in the
plunging region. Matter passing the inner boundary of the simulation has ~10%
greater binding energy and ~10% smaller angular momentum than it did at the
marginally stable orbit. Both the mass accretion rate and the integrated stress
fluctuate widely on a broad range of timescales.Comment: Accepted for publication in the Astrophysical Journal. For Web
version with mpeg animations see
http://www.astro.virginia.edu/VITA/papers/plunge
Non-Markovian barrier crossing with two-time-scale memory is dominated by the faster memory component
We investigate non-Markovian barrier-crossing kinetics of a massive particle in one dimension in the presence of a memory function that is the sum of two exponentials with different memory times Ď„ 1 and Ď„ 2 . Our Langevin simulations for the special case where both exponentials contribute equally to the total friction show that the barrier crossing time becomes independent of the longer memory time if at least one of the two memory times is larger than the intrinsic diffusion time. When we associate memory effects with coupled degrees of freedom that are orthogonal to a one-dimensional reaction coordinate, this counterintuitive result shows that the faster orthogonal degrees of freedom dominate barrier-crossing kinetics in the non-Markovian limit and that the slower orthogonal degrees become negligible, quite contrary to the standard time-scale separation assumption and with important consequences for the proper setup of coarse-graining procedures in the non-Markovian case. By asymptotic matching and symmetry arguments, we construct a crossover formula for the barrier crossing time that is valid for general multi-exponential memory kernels. This formula can be used to estimate barrier-crossing times for general memory functions for high friction, i.e. in the overdamped regime, as well as for low friction, i.e. in the inertial regime. Typical examples where our results are important include protein folding in the high-friction limit and chemical reactions such as proton-transfer reactions in the low-friction limit
High-Sensitivity Cardiac Troponin I Level and Left Ventricular Diastolic Dysfunction on Severe Preeclampsia: Kadar High Sensitivity Cardiac Troponin I dan Disfungsi Diastolik Ventrikel Kiri pada Preeklamsia Berat
Abstract
Objective: To know the relationship between high-sensitivity cardiac Troponin I (hscTnI) level with left ventricular dysfunction on severe preeclampsia.Methods: An observational analytics study with a cross-sectional approach of ten pregnant women with severe preeclampsia who underwent delivery or termination pregnancy and then performed a transthoracic echocardiography examination and serum levels of hscTnI.Results: There is a significant relationship between hscTnI levels and left ventricular diastolic dysfunction (p <0.05)Conclusion: These findings of this study have significant implications that severe preeclampsia is associated with heart remodelling and significant change in cardiac function especially left ventricular dilatation and elevation of hscTnI. Early identification and intervention may ameliorate subsequent cardiovascular disease so this requires regular and close follow-up of this target group.Keywords: high-sensitivity cardiac Troponin I, left ventricular diastolic dysfunction, severe preeclampsia.
Abstrak
Tujuan: Untuk mengetahui hubungan antara kadar high-sensitivity cardiac Troponin I (hscTnI) dengan disfungsi ventrikel kiri pada preeklamsia berat.Metode: Studi observasional dengan pendekatan potong lintang terhadap sepuluh ibu hamil dengan preeklamsia berat yang menjalani persalinan atau terminasi kehamilan kemudian dilakukan pemeriksaan ekokardiografi dan kadar hscTnI serum.Hasil: Ada hubungan yang bermakna antara kadar hscTnI dengan disfungsi diastolik ventrikel kiri (p <0,05).Kesimpulan: Temuan penelitian awal ini memiliki implikasi yang signifikan bahwa preeklamsia berat berhubungan dengan remodeling jantung dan perubahan signifikan pada fungsi jantung terutama dilatasi ventrikel kiri disertai peningkatan kadar hscTnI. Identifikasi dan intervensi dini dapat memperbaiki perjalanan penyakit kardiovaskular sehingga diperlukan pengawasan lanjut pada kelompok pasien ini.Kata kunci: disfungsi diastolik ventrikel, high-sensitivity cardiac troponin I jantung sensitivitas tinggi, kiri, preeklamsia bera
The puzzle of the 1996 Bardarbunga, Iceland, Earthquake: No volumetric component in the source mechanism
A volcanic earthquake with Mw 5:6 occurred beneath the Bárdarbunga caldera in Iceland on 29 September 1996. This earthquake is one of a decade-long sequence of M 5 events at Bárdarbunga with non-double-couple mechanisms in the Global Centroid Moment Te
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