Report of the Los Angeles Park Commissioners

Report year ends June 30

Charter of the city of Los Angeles, annotated : as adopted January 22, 1925, amended January 18, 1927, amended January 15, 1929, amended January 9, 1931, amended January 10, 1933, amended May 15, 1933, amended January 9, 1935 /

Mode of access: Internet.

Inventory of the county archives of California : no. 20, Los Angeles County (Los Angeles) Assessor's Office /

Mimeographed.

Study of the rocky intertidal communities of central and northern California : year II /

Mode of access: Internet.

Los Angeles red line : financing decisions could affect this and other Los Angeles County rail capital projects : report to the Chairman, Subcommittee on Transportation and Related Agencies, Committee on Appropriations, House Representatives /

"B-270347"--P. 1.

Herbicides in the upper Poxim River, Sergipe, and the risk of contamination of water resources

Increased agricultural activity in watershed areas has been causing concern over contamination by herbicides in agricultural areas. The problem becomes more important when contamination can affect water for human consumption, as happens with water from the Poxim river, which supplies the city of Aracaju, capital of the State of Sergipe. The aim of this study was to evaluate the risk of contamination by herbicides to both surface and groundwater in the upper sub-basin of the Poxim River, and to detect the presence of the active ingredients Diuron and Ametrine up-river from the sugar-cane plantations. Risk analysis was carried out using criteria from the Environmental Protection Agency (EPA), the GUS index, and the GOSS method. It was observed that several active ingredients are at risk of leaching, demonstrating the importance of monitoring the river to control both the quality of water and the frequency and volume of herbicides used in the region. Based on the results, monitoring was carried out bi-monthly from July 2009 to July 2010 at two sampling points. Water samples were analyzed in the laboratory, where the presence of Diuron and Ametrine was noted. Water quality in the Sub-basin of the Rio Poxim is being influenced by the use of herbicides in the region. There was an increase in herbicide concentration in the surface water during the rainy season, possibly caused by soil runoff.

Relation of depression to various markers of coagulation and fibrinolysis in patients with and without coronary artery disease

BACKGROUND: It has been suggested that changes in blood coagulation and fibrinolysis might explain the observed association between depression and coronary artery disease (CAD). So far, only a few coagulation factors have been investigated in this regard, and the results were not consistent. DESIGN: The aim of our study was to analyse a broad range of coagulation and fibrinolytic factors, with emphasis on factors directly involved in clot formation and degradation or reflecting coagulation activation, in patients with CAD and controls without CAD, as assessed by coronary angiography, who also underwent a diagnostic procedure for depression. METHODS: We screened 306 patients with CAD and controls without CAD for depression using the Hospital Anxiety and Depression Scale and Allgemeine Depressions Skala-L questionnaires. In participants with positive screening result, diagnosis of major depression was confirmed or excluded by a structured interview. We analysed the following coagulation and fibrinolytic factors: fibrinogen, prothrombin fragment F1+2, factor XIII A-subunit, factor XIII B-subunit, tissue plasminogen activator, plasminogen activator inhibitor-1, thrombin-activable fibrinolysis inhibitor, and D-dimer. RESULTS: We did not observe significant associations between depression and CAD, nor between depression and cardiovascular risk factors. Coagulation and fibrinolytic factors showed no differences between patients with CAD and controls, but they were associated with several cardiovascular risk factors. Depression was not associated with coagulation and fibrinolytic factors. No associations were found either when both CAD and depression were taken into account. CONCLUSION: Our study gives no evidence that there is a significant relation among depression, CAD, and blood coagulation and fibrinolysis.

Pre-investigation of water electrolysis for flexible energy storage at large scales: the case of the Spanish power system

This report analyzes the basis of hydrogen and power integration strategies, by using water electrolysis processes as a means of flexible energy storage at large scales.

Pre-investigation of water electrolysis for flexible energy storage at large scales: the case of the Spanish power system

This report analyzes the basis of hydrogen and power integration strategies, by using water electrolysis processes as a means of flexible energy storage at large scales. It is a prospective study, where the scope is to describe the characteristics of current power systems (like the generation technologies, load curves and grid constraints), and define future scenarios of hydrogen for balancing the electrical grids, considering the efficiency, economy and easiness of operations. We focus in the "Spanish case", which is a good example for planning the transition from a power system holding large reserve capacities, high penetration of renewable energies and limited interconnections, to a more sustainable energy system being capable to optimize the volumes, the regulation modes, the utilization ratios and the impacts of the installations. Thus, we explore a novel aspect of the "hydrogen economy" which is based in the potentials of existing power systems and the properties of hydrogen as energy carrier, by considering the electricity generation and demand globally and determining the optimal size and operation of the hydrogen production processes along the country; e.g. the cost production of hydrogen becomes viable for a base-load scenario with 58 TWh/year of power surplus at 0.025 V/kWh, and large number electrolyzer plants (50 MW) running in variable mode (1-12 kA/m2)

Los Angeles County Alcohol Safety Action Project final report: 1973-1975.

National Highway Traffic Safety Administration, Washington, D.C.

Los Angeles County Occupational Health Services Employee Alcoholism Program: a performance report for 1975. Final report.

National Highway Traffic Safety Administration, Washington, D.C.