Simulated global changes, including warming, increased precipitation, and nitrogen deposition, alone and in concert, increased net primary production (NPP) in the third year of ecosystem-scale manipulations in a California annual grassland. Elevated carbon dioxide also increased NPP, but only as a single-factor treatment. Across all multifactor manipulations, elevated carbon dioxide suppressed ...

Title of Dissertation: ESSAYS ON DECOMPOSITION ANALYSIS Amparo Palacios López, Doctor of Philosophy, 2013 Dissertation directed by: Professor Ramón López Department of Agriculture and Resource Economics Chapter 1 shows the implications of credit and labor market imperfections on gender differences in agricultural labor productivity, especially highlighting how both imperfections negatively affe...

Molecules containing a nitrogen-nitrogen (N-N) linkage have a variety of structures and biological activities; however, no enzyme has yet been demonstrated to catalyze N-N bond formation in an organic molecule. Here we report that the heme-dependent enzyme KtzT from Kutzneria sp. 744 catalyzes N-N bond formation in the biosynthesis of piperazate, a building block for nonribosomal peptides.

A case of acute nitrogen dioxide toxicity is described, together with its management and a review of the possible complications.

In the present study we investigated the seasonal pattern of activity of antioxidant enzymes such as superoxide dismutase (SOD) catalase (CAT) ascorbate peroxidase (APX), guaiacol peroxidase (POD) and syringaldazine peroxidase (SPOD) as well as the total protein concentration in the European mistletoe (Viscum album L. subsp. album). We studied mistletoe leaves that grew on the selected tree spe...

Acute lung damage resulting from exposure to nitrogen dioxide at levels of 80 ppm for 3 hours has been reported by Langloss, et al. (28). Blank, et al. (9) exposed rats to levels of 15 to 40 ppm for up to 5 hours. Both of these groups reported alveolar damage with subsequent edema followed by hyperplasia or increased biosynthesis. The relevance of these types of exposure to smoking-related dise...

Various gas atmospheric nonthermal plasmas were generated using a multigas plasma jet to treat microbial suspensions. Results indicated that carbon dioxide and nitrogen plasma had high sterilization effects. Carbon dioxide plasma, which generated the greatest amount of singlet oxygen than other gas plasmas, killed general bacteria and some fungi. On the other hand, nitrogen plasma, which genera...

Nitrogen dioxide induced SOS functions in Salmonella typhimurium and Escherichia coli K-12 and was mutagenic in Escherichia coli WP2. When a rabbit was administered aminopyrine intravenously and administered nitrogen dioxide by inhalation, N-nitrosodimethylamine was detected in its blood. Analysis was conducted with 15N-nitrosodimethylamine as an internal standard by a combination of capillary ...

Acute exacerbations of idiopathic pulmonary fibrosis are associated with high mortality and are of unknown cause. The effect of air pollution on exacerbations of interstitial lung disease is unknown. This study aims to define the association of air pollution exposure with acute exacerbation of idiopathic pulmonary fibrosis. Patients with idiopathic pulmonary fibrosis and corresponding air pollu...

Recent studies have suggested an association between air pollution and stillbirth. In this California study, we examined the records of 13,999 stillbirths and 3,012,270 livebirths occurring between 1999 and 2009. Using a retrospective cohort design and logistic regression models, we calculated the odds of stillbirth associated with each pollutant exposure by trimester and throughout the entire ...