336,984 research outputs found
Plants in water-controlled ecosystem: active roles in hydrological processes and response to water stress. I: Scope and general outline
No full textThis series of four papers studies the complex dynamics of water-controlled ecosystems from the hydro-ecological point of view [e.g., I. Rodriguez-Iturbe, Water Resour. Res. 36 (1) (2000) 3-9]. After this general outline, the role of climate, soil, and vegetation is modeled in Part II [F. Laio, A. Porporato, L. Ridolfi, I. Rodriguez-Iturbe, Adv. Water Res. 24 (7) (2001) 707-723] to investigate the probabilistic structure of soil moisture dynamics and the water balance. Particular attention is given to the impact of timing and amount of rainfall, plant physiology, and soil properties. From the statistical characterization of the crossing properties of arbitrary levels of soil moisture, Part III develops an expression for vegetation water stress [A. Porporato, F. Laio, L. Ridolfi, I. Rodriguez-Iturbe, Adv. Water Res. 24 (7) (2001) 725-744]. This measure of stress is then employed to quantify the response of plants to soil moisture deficit as well as to infer plant suitability to given environmental conditions and understand some of the reasons for possible coexistence of different species. Detailed applications of these concepts are developed in Part IV [F. Laio, A. Porporato, C.P. Fernandez-Illescas, I. Rodriguez-Iturbe, Adv. Water Res. 24 (7) (2001) 745-762], where we investigate the dynamics of three different water-controlled ecosystems
[Letter from Jacob I. Rodriguez to Ivey Gonzalez - December 20, 1952]
No full textCarbon copy of a letter from Jacob I. Rodriguez, LULAC National Publicity Director, to Ivey Gonzalez, Superintendent of the Wichita Falls Police Department Identification Bureau, dated December 20, 1952. Rodriguez inquires about reviving the LULAC Council in Wichita Falls, Texas
[Letter from Jacob I. Rodriguez to John Ben Shepperd - March 3, 1953]
No full textCopy of a letter from Jacob I. Rodriguez, LULAC National Director of Publicity, to John Ben Shepperd, Texas Attorney General, dated March 3, 1953. Rodriguez recommends Frank Pinedo for appointment to the position of Assistant Attorney General
[Letter from Jacob I. Rodriguez to John J. Herrera - June 11, 1953]
No full textLetter from Jacob I. Rodriguez, LULAC National Director of Publicity, to John J. Herrera, LULAC National President, dated June 11, 1953. Rodriguez discusses issues concerning LULAC News that might arise at the upcoming National Convention
[Letter from Jacob I. Rodriguez to John J. Herrera - June 15, 1953]
No full textLetter from Jacob I. Rodriguez, Executive Secretary-Manager of the Mexican Chamber of Commerce in San Antonio, Texas, to John J. Herrera, LULAC Past National President, dated June 15, 1953. Rodriguez addresses Herrera's defeat for re-election as LULAC National President and expresses appreciation for work done during Herrera's tenure as president. Rodriguez also mentions outstanding LULAC News bills which include Munguia printers who printed the newsletter
[Letter from Jacob I. Rodriguez to John J. Herrera - November 3, 1952]
No full textLetter from Jacob I. Rodriguez, editor of the LULAC News, to John J. Herrera, LULAC National President, dated November 3, 1952. Originally enclosed with the letter was a copy of the LULAC NEWS of Santa Ana, California, which included that council's by-laws. Rodriguez is questioning the by-laws as they appear to include "secession" statements concerning LULAC
[Letter from Jacob I. Rodriguez to John J. Herrera - 1953-08-26]
No full textLetter from Jacob I. Rodriguez, Executive Secretary-Manager of the Mexican Chamber of Commerce in San Antonio, Texas, to John J. Herrera, dated August 26, 1953. Rodriguez sends an invitation to Herrera to attend Fiestas Patrias in Mexico City September 12-17, 1953. An interview with Mexican President Ruiz Cortines is on the agenda. Travel details and costs are also discussed
[Letter from Jacob I. Rodriguez to John J. Herrera - November 5, 1948]
No full textLetter from Jacob I. Rodriguez, Executive Secretary General of LULAC, to John J. Herrera, LULAC Regional Governor, dated November 5, 1948. Rodriguez discusses the November issue of the LULAC News, which was sponsored by the Houston Council Number 60, and the difficulties receiving material and printing the issue
[Letter from Jacob I. Rodriguez to John J. Herrera - January 6, 1951]
No full textLetter from Jacob I. Rodriguez to John J. Herrera, LULAC First National Vice-President, dated January 6, 1951. This acknowledges the change of dates for the Regional LULAC Convention and confirms that amended proclamations will be sent to the active LULAC Councils. Rodriguez also confirms that he will speak at the convention
[Letter from Jacob I. Rodriguez to John J. Herrera - January 25, 1949]
No full textLetter from Jacob I. Rodriguez, Executive Secretary General of LULAC, to John J. Herrera, LULAC Regional Governor, dated January 25, 1949. This is requesting confirmation of hotel reservations
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