نتایج جستجو برای: supply leading hypothesis
تعداد نتایج: 629904 فیلتر نتایج به سال:
For years, economists have debated the extent to which organized medicine has benefited from medical licensing restrictions. This debate has been hampered by the lack of a viable alternative hypothesis. This paper provides an alternative hypothesis and suggests an empirical test which focuses on the relationship between licensure restrictions and the level of consumption of physician services a...
Riboflavin overproduction in the ascomycete Ashbya gossypii is limited by glycine, a precursor of purine biosynthesis, and therefore an indicator of glycine metabolism. Disruption of the SHM 2 gene, encoding a serine hydroxymethyltransferase, resulted in a significant increase in riboflavin productivity. Determination of the enzyme's specific activity revealed a reduction from 3 m-units/mg of p...
We study and quantify the variation in healthful consumption habits across income brackets in the United States. Using a detailed grocery shopping database, we document a positive nutrition-income gradient: the highest-income quartile of households buy groceries that are 0.25 standard deviations more healthful than the lowest-income quartile. We then study the underlying mechanisms leading to t...
RATIONALE The mechanisms leading to an expanded neutrophil and monocyte supply after stroke are incompletely understood. OBJECTIVE To test the hypothesis that transient middle cerebral artery occlusion (tMCAO) in mice leads to activation of hematopoietic bone marrow stem cells. METHODS AND RESULTS Serial in vivo bioluminescence reporter gene imaging in mice with tMCAO revealed that bone mar...
This research has developed an analytical framework based on resource-based theory. It intends to find out the impact of different attributes on supply chain performance and financial performance under different IT capabilities and application degrees. The hypothesis test model incorporating five measuring variables is conducted; they are strategy of e-business, application degree of e-business...
–Supply Chain Management emerged as one of the most powerful business improvement tool available today. A number of SCM practices such as supplier, customer, ERP, subcontracting, E-procurement, EDI, E-commerce have been addressed in Indian manufacturing industries and a conceptual model was formulated based on previous literature and a questionnaire developed, survey was performed. This paper e...
Human activities have dramatically altered nutrient fluxes from the landscape into receiving waters. As a result, not only the concentration of nutrients in surface waters has increased, but also their elemental ratios have changed. Such shifts in resource supply ratios will alter autotroph stoichiometry, which may in turn have consequences for higher trophic levels, including parasites. Here, ...
This paper applies a TVP-VAR model to explore dynamic connectedness between West Texas Intermediate crude oil and other US energy prices, stock prices exchange rate markets during the April 2020 supply shock leading negative WTI prices. period, while coinciding with escalation of COVID-19 pandemic, is also associated non-uniform government pandemic responses, widespread expectations global econ...
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