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Search Results: 1 - 10 of 10193 matches for " Sandra Schmitz "
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Schwannoma-like pleomorphic adenoma of the parotid
Jean-Christophe Tille,Hervé Reychler,Marc Hamoir,Sandra Schmitz
Rare Tumors , 2011, DOI: 10.4081/rt.2011.e40
Abstract: Pleomorphic adenoma is the most common benign salivary gland tumour. It can occur in any salivary gland, but is most frequently found in the parotid gland. Chondroid metaplasia is a frequent finding in pleomorphic adenoma. Other forms of metaplasia have been described, but are encountered less frequently. We report a rare case of unusual pleomorphic adenoma of the parotid gland with schwannoma- like feature.
Commodity Price Stabilization under Unattainable Stocks  [PDF]
Andrew Schmitz
Theoretical Economics Letters (TEL) , 2018, DOI: 10.4236/tel.2018.85061
Abstract: Commodity price stabilization continues to be a subject of keen interest to policy makers. The general conclusion within the context of welfare economics is that price stabilization brought about through stockholding activities leads to a net welfare improvement to society even though there are gainers and losers from price stabilization policies. Under the standard price expectation formulation used, storage does not result in complete price stability, but in price fluctuations within a positive price band. However, it does generate price stability under an alternative price expectation framework. Under the standard price expectation formulation, the gains from stability are positive, but much less than under an alternative price expectation specification.
Producers’ Preference for Price Instability?  [PDF]
Andrew Schmitz
Theoretical Economics Letters (TEL) , 2018, DOI: 10.4236/tel.2018.810114
Abstract: The debate over whether producers prefer price instability to price stability continues, especially where policies are often endorsed that aim at generating stability. Such policies include the holding of agriculture commodity stocks by government to bring about price stability. But why would producers support such a policy given that producers prefer price instability, or do they? Oi argues that producers prefer price instability, which is opposite to the conclusion reached by Massell. In this paper, we take up the issue as to producers’ preference for price instability using the classic welfare economic framework used by Massell and Just et al. We develop a producer price expectation model that brings about price stability, which is possible without storage. We use this as the basis upon which to compare price stability to price instability. Our conclusion is that producers prefer price instability regardless of whether it is due to demand or supply shocks.
Compensation and the Twin Producer Gains from Production Quotas  [PDF]
Troy G. Schmitz, Andrew Schmitz
Theoretical Economics Letters (TEL) , 2011, DOI: 10.4236/tel.2011.13015
Abstract: The limited theory on production quotas focuses on the impact of introducing quotas when otherwise the market would be competitive. We develop a model also on the effect of removing quotas, and then consider the combined effects of both introducing and removing quotas. Under the value of quota approach, the amount of money spent by the government for the buyout (i.e., value of quota) is equal to the sum of the net gain to producers when the quota was introduced plus the net gain if it were removed. Compensation is the key to a quota buyout, as producers have little interest in politically supporting a government compensated buyout unless they gain by so doing.
Inflated Production Quota Gains Paid for by a Consumption Tax  [PDF]
Troy G. Schmitz, Andrew Schmitz, Dwayne Haynes
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.21012
Abstract: We consider a production quota buyout that is paid for by a consumption tax. If producers are paid the true value of the quota via a consumption tax, the net producer gain is zero for the combined introduction and removal of quota (even though the quota value is positive) since the net gain to producers when the quota was introduced is equal to the net loss to producers when the production quota is removed. Therefore, the quota value does not measure the producer net gain from both the introduction and removal of the production quota. The quota value merely represents the consumption tax amount. This is also true if producers are paid (which is often the case) an inflated quota value that is more than the true quota value.
Intoxica??o experimental por Trema micrantha (Ulmaceae) em bovinos
Traverso, Sandra Davi;Corrêa, André Mendes Ribeiro;Schmitz, Milene;Colodel, Edson Moleta;Driemeier, David;
Pesquisa Veterinária Brasileira , 2004, DOI: 10.1590/S0100-736X2004000400008
Abstract: leaves of trema micrantha were orally given to 13 cattle. ten animals received green leaves in a single dose, two animals received green leaves in fractionated doses, and one received the dried leaves in a single dose. eight animals showed clinical signs and six of them died. clinical signs were observed 16 hours after administration and included apathy, anorexia, drooling, progressive weakness, coma and death. neurological signs as pressing the head against obstacles and head shaking were observed in four animals . death occurred between 67 and 153 hours after the end of plant ingestion. the main gross lesions were observed in the liver, and included friable consistency, pronounced lobular pattern and areas of haemorrhages. the liver of one bovine was homogeneously dark reddened. petechial hemorrhages in serosal membranes and edema in the gall bladder were frequently seen. pale kidneys with red spots in the cortex were observed in one animal. microscopically, the most striking lesion in the liver was massive coagulative necrosis, associated with centrolobular haemorrhages, observed in four animals. in the liver of one bovine centrolobular necrosis was observed . tubular renal necrosis was noted in two animals. additional microscopic lesions were found in the central nervous system of five bovines, especially in the frontal cortex, and included perineuronal and perivascular edema with basophilia and retraction of the neurons. t t. micrantha caused clinical signs with 50g/kg and death with doses of 54g/kg or higher. the fractionated administration of the green leaves as well as the dried leaves did not cause poisoning.
Transfer of Visuomotor Adaptation to Unpractised Hands and Sensory Modalities  [PDF]
Otmar Bock, Gerd Schmitz
Psychology (PSYCH) , 2013, DOI: 10.4236/psych.2013.412145

A recent model (Bock, 2013) predicts that sensorimotor adaptation, achieved while pointing at visual targets, will transfer fully to acoustic targets. The model further predicts that visual-to-acoustic transfer is not diminished even if the left and right arms have adapted to a different distortion. To scrutinize these predictions, we asked subjects to point at visual targets with their right hands under a +30 deg rotation of visual feedback (group “single”), or alternately, with their right hands under a +30 deg and with their left hands under a -30 deg rotation of visual feedback. Aftereffects were registered for each hand and for visual as well as acoustic targets, in counterbalanced order. We found that acoustic aftereffects were only about 66% of visual ones, which violates the first prediction and calls for an amendment of the model. We further found that acoustic aftereffects were of similar magnitude in both groups, which supports the second prediction. Finally, we observed an intermanual transfer of only about 29%. These findings suggest that unpractised acoustic inputs are weighted somewhat lower than practised visual ones, and that outputs to the unpractised left hand are weighted substantially lower than those to the practised right hand.

Consumer Tax Production Quota Buyouts and Negative Compensation: Producers’ Dilemma  [PDF]
Andrew Schmitz, Dwayne J. Haynes, Troy G. Schmitz
Theoretical Economics Letters (TEL) , 2013, DOI: 10.4236/tel.2013.33025

In some cases, production quota buyouts can be paid for through consumer taxes. Using a simplified two-period model, we show that producers can never gain from a consumer tax buyout even if the compensation is based on an inflated quota value. The higher the quota value used as the basis of compensation, the greater is the overall producer loss from the buyout. This producer loss within a two-period model buyout is called “negative producer compensation”.

Production Decoupling under US Farm Programs  [PDF]
Charles B. Moss, Andrew Schmitz, Troy G. Schmitz
Natural Resources (NR) , 2014, DOI: 10.4236/nr.2014.51003

The loan rate and target price are key ingredients in US farm policy. Empirical models of the effect of US agricultural policy are based on different degrees of decoupling between price supports and production. Theoretically, rational producers will make decisions based on the loan rate rather than the target price. Therefore, models which are estimated based on a target price specification could significantly overestimate the distortionary impact of policy on resource use and production.

Valuing Carbon Recycling through Ethanol: Zero Prices for Environmental Goods  [PDF]
Charles B. Moss, Andrew Schmitz
Theoretical Economics Letters (TEL) , 2014, DOI: 10.4236/tel.2014.43032

The Energy Independence and Security Act of 2007 imposes a Renewable Fuel Standard met through a combination of corn and cellulosic ethanol. A variety of rationales support this policy including the recycling of atmospheric carbon. This study examines the economic dimensions of this problem focusing on the role of zero prices for environmental goods and the use of an environmental equivalent. When environmental goods are taken into account, the optimal price policy cannot be defined with certainty.

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