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Now showing items 411-420 of 623
A study of the zooplankton assemblage of San Antonio Bay, Texas, and of the effects of river inflow on the composition and the persistence of this assemblage
(1980)
The composition and abundance of the zooplankton community in San Antonio Bay were studied. Particular attention was paid to the occurrences and densities of selected taxa and to the effects of floods on this zooplankton ...
Impact of alternative energy prices, tenure arrangements and irrigation technologies on a typical Texas high plains farm firm
(1980)
Irrigation is a major contributing factor in crop production on the Texas High Plains. It is responsible for greatly increasing crop production and farm income for the region. Two factors, a declining groundwater supply ...
An algorithm for large-scale nonliner knapsack : problems and extensions
(1980)
In this dissertation, an algorithm was developed to solve large scale discrete nonlinear knapsack problems (NKP) with multiple resource constraints. The algorithm is essentially a dynamic programming technique in a sense ...
The citizen factories : the Americanization of Mexican students in Texas public schools, 1920-1945
(1976)
This study examined and recorded the Americanization movement as it affected the education of Mexican students (Mexican-American and immigrant Mexican) in Texas public schools in the period 1920-1945. Previous research in ...
Biological and economical aspects of commercial intensive shrimp mariculture in Texas
(1989)
Data collected from a commercially operated intensive shrimp farm on the Texas coast were used to evaluate certain operational aspects of penaeid shrimp farming in Texas. These data then were incorporated in a simulation ...
Chromosome, allozyme, and morphometric variation in three cytoypes of the Sceloporus grammicus complex
(1980)
The iguanid lizard Sceloporus qrammicus consists of at least six chromosome "races" (=cytotypes) distributed throughout most of Mexico. Three of these cytotypes (2n=32, 34, and 36) were studied in detail in that part of ...
An economic analysis of the long-run timber market in East Texas
(1980)
This study was initiated to determine possible demand and supply equilibria in the East Texas timber market for the year 2000. The demand and supply schedules were developed independently, using two separate analytical ...
Teacher turnover in Texas secondary vocational industrial education programs
(1979)
The primary objective of this study was to determine the specific reasons for the high rate of public school vocational industrial education teacher turnover in Texas. Secondary objectives included: determining whether the ...
An economic model for planning combination small stock-cattle herd development : an application to Edwards Plateau, Texas
(1980)
Ruminant production systems analyses, in the past, has focused on cattle. An increasing demand for red-meat production, low cattle prices in the early 1970's and increasing prices for the small stock classes and their ...
Damage assessment and alternate host plants of sorghum panicle-feeding bugs
(1981)
Five species of panicle--feeding bugs were found in commercial sorghum in southeast central Texas: Rice stink bug (Oebalus pugnax F.), southern green stink bug (Nezara viridu la L.), leaffooted bug (Leptoglossus phyllopus ...