Past research on nitrogen (N) inputs, losses and surpluses focused on separate components of grassland management, i.e., grazed or cut swards and the impact of fertiliser or slurry applications. In practice, however, grassland is both grazed and cut for conservation, and N fertiliser is supplied from both organic and inorganic sources. A whole systems approach was used to evaluate the effects o...

Six commercial dairies from south central Idaho were surveyed to estimate the whole-farm surpluses of magnesium (Mg), sulfur (S), copper (Cu), and zinc (Zn). Mineral imports and exports were monitored in a 12-mo period and samples from the diets, feeds, feces, urine, and manure were collected at regular farm visits. Soils from manure-amended fields were sampled in the spring and fall. In all ca...

New evidence suggests that leptin and other anorexigenic agents reduce appetite by inactivating hypothalamic AMP-activated protein kinase (AMPK), thereby increasing malonyl CoA levels. This preview examines AMP biology and its role in malonyl-CoA generation and attempts to integrate its central actions with its peripheral antilipotoxic actions within the context of leptin physiology in obesity.

Professor Carmichael and Dr. Cichowlas argue for the reexamination of the pharmacist's role in the current health care system. Reexamination is necessitated due to changing complexities of the health care system as evidenced by increased economic demands and pharmaceutical surpluses. The authors advocate for Collaborative Drug Therapy Management, in which physicians and pharmacists maximize pat...

The fiscal theory of price determination asserts that the price level is determined by the ratio of nominal public debt to the present value of real primary surpluses. To show its fragility, we describe a cash-in-advance economy with infinitely lived real productive assets. The fiscal theory does not hold since speculative bubbles partly restore the classical indeterminacy result.

We consider multiple simple recourse (MSR) models, both continuous and integer versions, which generalize the corresponding simple recourse (SR) models by allowing for a refined penalty cost structure for individual shortages and surpluses. It will be shown that (convex approximations of) such MSR models can be represented as explicitly specified continuous SR models, and thus can be solved eff...

This paper stems from a recent heated debate on the relationship between the price level and scal policy. While the relationship between in ation, government de cits and debt has a long tradition in macroeconomics, a recent string of papers has put a new twist on it by proposing a \ scal theory of the price level", which shows that the government can target directly the price level by using sca...

Crop-livestock production systems are the largest cause of human alteration of the global nitrogen (N) and phosphorus (P) cycles. Our comprehensive spatially explicit inventory of N and P budgets in livestock and crop production systems shows that in the beginning of the 20th century, nutrient budgets were either balanced or surpluses were small; between 1900 and 1950, global soil N surplus alm...

We present a model that reproduces two salient facts characterizing the international monetary system: Fast growing emerging countries i) run current account surpluses, ii) accumulate reserves and receive net private inflows. study two-sector, tradable non-tradable, small open economy. There is growth externality in sector agents have imperfect access to financial markets. By accumulating forei...