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A COST-BASED MODEL OF SEASONAL PRODUCTION, WITH APPLICATION TO MILK POLICY AgEcon
Hennessy, David A.; Roosen, Jutta.
Milk production is seasonal in many European countries. While quantity seasonality poses capacity management problems for dairy processors, a European Union policy goal is to reduce price seasonality. After developing a model of endogenous seasonality, we study the effects of three E.U. policies on production decisions. These are private storage subsidies, production removals, and production quotas. When cost functions are seasonal in a specified way, then arbitrage opportunities interact with storage subsidies to reduce both price and consumption seasonality. But production seasonality likely increases because storage subsidies promote temporal market integration. Conditions are identified under which product market interventions increase quantity...
Tipo: Working or Discussion Paper Palavras-chave: Efficiency; Market intervention; Quota; Stabilization; Storage subsidies; Livestock Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/18587
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Bordonein-L, a new L-amino acid oxidase from Crotalus durissus terrificus snake venom: isolation, preliminary characterization and enzyme stability J. Venom. Anim. Toxins incl. Trop. Dis.
Bordon,Karla C. F.; Wiezel,Gisele A.; Cabral,Hamilton; Arantes,Eliane C..
BackgroundCrotalus durissus terrificus venom (CdtV) is one of the most studied snake venoms in Brazil. Despite presenting several well known proteins, its L-amino acid oxidase (LAAO) has not been studied previously. This study aimed to isolate, characterize and evaluate the enzyme stability of bordonein-L, an LAAO from CdtV.Methods The enzyme was isolated through cation exchange, gel filtration and affinity chromatography, followed by a reversed-phase fast protein liquid chromatography to confirm its purity. Subsequently, its N-terminal amino acid sequence was determined by Edman degradation. The enzyme activity and stability were evaluated by a microplate colorimetric assay and the molecular mass was estimated by SDS-PAGE using periodic acid-Schiff...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crotalus durissus terrificus; L-amino acid oxidase; Rattlesnake; Enzyme activity; Enzyme stability; Chromatography; Snake venom; Yellow venom; Stabilization.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100335
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CHARACTERIZATION AND EVALUATION OF THE POTENTIAL USE OF SLUDGE FROM STP AND WTP IN PAVING REA
Lucena,Leda C.; Juca,José F. T.; Soares,Jorge B.; Barroso,Suelly H. A.; Portela,Manoel G..
ABSTRACT Water and sewage treatment plants (STP and WTP) generate as byproduct a significant amount of sludge with environment harmful elements. Sending to landfills or depositing on the ground or rivers are respectively expensive and dangerous alternatives. In this scenario, the use of this waste in paving processes is a promising alternative for disposal thereof. In this study, we focused on characterizing sludge and evaluating its use in paving, which showed satisfactory results for use in base and sub-base floors.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stabilization; Chemical constituents; Soil.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100166
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Discovery and development of biological agents to control crop pests Neotropical Entomology
Slininger,Patricia J.; Behle,Robert W.; Jackson,Mark A.; Schisler,David A..
Thousands of potential microbial biocontrol agents have been isolated from agricultural fields and crops during research over the last 80 years, yet only a few are in commercial use. Recently, public health and safety concerns about the environmental impact of chemical pesticides have led to consideration of biological control as a natural approach to maintaining crop health. Despite environmental incentives and strong research efforts, commercialization of biocontrol agents has been slow to evolve. The momentum of the chemical industry is difficult to shift, and fermentation processes tend to be more expensive to operate than synthetic chemical processes.Yet there is a demand for biological control products, especially in agricultural niche markets, where...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biopesticide; Biological control; Fermentation; Formulation; Stabilization.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000200001
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Improved sanitary landfill design using recirculation of anaerobically treated leachates: generation of advanced design criteria Electron. J. Biotechnol.
Schiappacasse,María Cristina; Palma,Juan; Poirrier,Paola; Ruiz-Filippi,Gonzalo; Chamy,Rolando.
In Latin Americ a, the most accepted disposal systems for Municipal Solid Waste (MSW) are landfills, which nowadays have low rates of stabilization. The objective of this study was to develop design criteria for sanitary landfills which lead to a reduction in the stabilization times of MSW, based on experiment results obtain from a pre-pilot scale operation of two sanitary landfills (0.5 Ton), one with recirculation of leachates treated in an anaerobic digester and the other with recirculation of untreated leachates. This was complemented by another pilot scale sanitary landfill (1440 Ton) with recirculation of leaches treated in an anaerobic filter, and additionally by a computer simulation of leachate generation through the water balance of a theoretical...
Tipo: Journal article Palavras-chave: Hydrological balance; Landfill; Leachate recycle; Municipal solid waste; Stabilization.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000300009
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International Energy R&D Spillovers and the Economics of Greenhouse Gas Atmospheric Stabilization AgEcon
Bosetti, Valentina; Carraro, Carlo; Massetti, Emanuele; Tavoni, Massimo.
It is widely recognized that technological change has the potential to reduce GHG emissions without compromising economic growth; hence, any better understanding of the process of technological innovation is likely to increase our knowledge of mitigation possibilities and costs. This paper explores how international knowledge flows affect the dynamics of the domestic R&D sector and the main economic and environmental variables. The analysis is performed using WITCH, a dynamic regional model of the world economy, in which energy technical change is endogenous. The focus is on disembodied energy R&D international spillovers. The knowledge pool from which regions draw foreign ideas differs between High Income and Low Income countries. Absorption...
Tipo: Working or Discussion Paper Palavras-chave: Climate Policy; Energy R&D; International R&D Spillovers; Stabilization; Environmental Economics and Policy; Resource /Energy Economics and Policy; H0; H2; H3.
Ano: 2007 URL: http://purl.umn.edu/8217
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Mechanical analysis of transversal iliac fracture stabilization using dynamic compression plate or screws and PMM in polyurethane bone model Arq. Bras. Med. Vet. Zootec.
Prada,T.C.; Shimano,A.C.; Chung,D.; Karcher,D.E.; Minto,B.W..
ABSTRACT Pelvic fractures correspond to 20 to 30 % of the fractures observed in dogs. Complete fractures, especially with bone axis deviation should be surgically treated. The mechanical study of surgical techniques is of utmost importance to assess the best way of treating these injuries. This study compared, biomechanically, the use of a dynamic compression plate (DCP) and screws (group 1) or screws and polymethylmethacrylate (PMMA) (group 2) to stabilize an iliac fracture using a static test. Sixteen canine synthetic hemi-pelvises (test specimens) with a transverse iliac osteotomy were used. After fixation with implants, a load was applied to the acetabulum until failure. Group 1 maximal compressive load was 133.9±18.60 N, displacement at yield...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pelvis; Stabilization; Biomechanical; Fracture.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000400901
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Organic Matter Stocks and the Interactions of Humic Substances with Metals in Araucaria Moist Forest Soil with Humic and Histic Horizons Rev. Bras. Ciênc. Solo
Hanke,Daniel; Dick,Deborah Pinheiro.
ABSTRACT Soils with humic and histic horizons in tropical and subtropical ecosystems play an important role in determining the atmospheric C stock and its stabilization, climate regulation, water holding capacity, and environmental filtering, due to the different functions of soil organic matter (SOM). However, the processes and mechanisms that regulate SOM dynamics in these soils are not clear. The objectives of this study were: i) determine the C and N stocks and ii) investigate the SOM chemical fractions and their interactions with Fe and Al ions in soils with humic and histic horizons of a toposequence under Araucaria moist forest in southern Brazil. The soils sampled were classified as Humic Hapludox (top - not hydromorphic), Fluvaquentic Humaquepts...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbon; Stabilization; Complexation; Organo-mineral; Histosol.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100417
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Overview of Farms Participating in the Canadian Agricultural Income Stabilization (CAIS) Program, 2004 AgEcon
Nimpagaritse, Fabrice.
Farm Analysis Bulletins (FAB) are undertaken to provide a better understanding of Canadian agriculture at the farm level. Using data from various sources such as Census, Farm Financial Surveys (FFS), Taxfiler, NISA database, etc, FAB's provide information on farm situation as well as highlighting and discussing farm related issues. This bulletin provides an overview of farms that participated in the 2004 Canadian Agricultural Income Stabilization (CAIS) program. Charts and tables with a brief accompanying text are used to describe participants in the CAIS Program. Business focussed farms as well as farms whose main source of income was agricultural product sales were more likely to participate in the CAIS Program.
Tipo: Report Palavras-chave: CAIS; Business Risk Management; BRM; Stabilization; Disaster protection; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Financial Economics.
Ano: 2006 URL: http://purl.umn.edu/53101
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PHYSICAL, MECHANICAL AND THERMAL BEHAVIOR OF ADOBE STABILIZED WITH “SYNTHETIC TERMITE SALIVA” REA
Gandia,Rômulo M.; Corrêa,Andrea A. R.; Gomes,Francisco C.; Marin,Diego B.; Santana,Lucas S..
ABSTRACT Adobe is an efficient construction material for several reasons, such as its thermal comfort, sustainability, and lower energy cost, as well as the simplicity of its production and execution. However, challenges such as water absorption, capillarity, and compressive strength should be investigated to improve its physical and mechanical properties. “Synthetic termite saliva” (STS) is an excellent stabilizer with high cohesive and hydrophobic power. Therefore, the objective of this work was to evaluate the effects of STS incorporation into adobe, analyzing its physical, mechanical and thermal properties. Five treatments were studied: 0 (control); 0.1; 0.2; 0.4 and 0.8% STS by mass. These adobe samples were evaluated according to bulk density, linear...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nonconventional materials; Stabilization; Sustainability; Earth construction; Hydrophobicity.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000200139
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Placement of vertebral screws for spinal stabilization and distraction in a dog with disc-associate cervical spondylomyelopathy: case report Arq. Bras. Med. Vet. Zootec.
Marinho,P.V.T.; Macedo,A.S.; Ferrigno,C.R.A.; Dal-Bó,I.S.; Paes,F.; Bregadioli,T..
ABSTRACT A 10-year-old male Rottweiler was evaluated for a 2-month history of recurrent forelimb weakness. Neurologic examination revealed proprioceptive ataxia, tetraparesis and moderate cervical pain. Disk-associated cervical spondylomyelopathy (CSM) with static lesion at C3-4 was diagnosed based on magnetic resonance imaging (MRI). The dog was surgically treated by a ventral slot procedure and distraction-stabilization of the vertebral bodies through insertion of vertebral screws with transverse connective bars. The patient had favorable clinical outcome. Neurologic assessment performed 120 days after surgery showed absence of neurologic defects. Radiographic assessment performed at the same time indicated adequate spinal cord decompression although...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Nervous system; Spinal cord; Stabilization; Canine.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501427
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Successes and Failures of Development Experience Since the 1980s AgEcon
Ranis, Gustav.
This paper reviews the development experience since the 1980's and finds room for guarded optimism about what we can learn from it. Firstly, a global consensus is emerging on the need for macro-economic stability through prudent fiscal, monetary and foreign exchange policies. However, at the micro or structural level, while governments need to decentralize their decision-making authority more fully than they have thus far, in reaction to the recent reappraisal of the East Asian model there is some danger that development policy will swing too far in rejecting liberalization and returning to government intervention. Secondly, the paper points out that, while there exists a well-recognized causal nexus between exports and growth, the reverse causation also...
Tipo: Working or Discussion Paper Palavras-chave: Development; Structural adjustment; Stabilization; Multi-lateral development banks; East Asian miracle; International Development.
Ano: 1996 URL: http://purl.umn.edu/28529
Registros recuperados: 12
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