103,354 research outputs found

    Foliations of small tubes in Riemannian manifolds by capillary minimal discs

    No full text
    Letting Γ be an embedded curve in a Riemannian manifold M, we prove the existence of minimal disc-type surfaces centered at Γ inside the surface of revolution of M around Γ, having small radius, and intersecting it with constant angles. In particular we obtain that small tubular neighborhoods can be foliated by minimal discs. © 2008 Elsevier Ltd. All rights reserved

    Texas A&M Law Review Fall 2020 Symposium: Containing Covid Catastrophes: Addressing The Effects Of Covid-19 On The Agricultural Industry Texas A&M University School Of Law

    Get PDF
    Transcript from Fall 2020 Symposium, Containing Covid Catastrophes: Addressing The Effects Of Covid-19 On The Agricultural Industry Texas A&M University School Of Law Featuring Panelists: Jim Bradbury & Greg Ibac

    The academic success of transfer students in the College of Agriculture at Texas A&M University

    No full text
    Purpose [line break] The purpose of this study was to identify and translate data relative to transfer students in the College of Agriculture at Texas A&M University that would serve for effective counseling within the College of Agriculture, in transferring institutions, and in high schools. To this end, the following specific objectives were developed as guidelines for the research: 1. To relate scholastic aptitude to kinds of students (native or transfer), to curricular choices of transfer students, and to size of high school graduating classes of transfer students. 2. To compare the academic success of transfer and native students. 3. To determine the relationship between selected factors and academic success. [line break] Procedures [line break] The procedures of this investigation involved the accumulating of relevant data for 152 transfer students and 134 natives in the College of Agriculture at Texas A&M University who first enrolled in any college or university in the summer or fall of 1963. These subjects were grouped appropriately and then tested statistically. Comparisons of scholastic aptitude test scores were made by analysis of variance. Comparisons of grade point ratios involving adjustments for differences in scholastic aptitude were made by analysis of covariance and others by analysis of variance. Where appropriate, individual means were compared by test of least significant differences. Chi-square tests were used to compare persistence. ..

    The effect of the Hopwood decision on minority interest in attending Texas A&M University

    Get PDF
    Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to [email protected], referencing the URI of the item.Includes bibliographical references (leaves 21-22).It is proposed here that the anti-affirmative action policies which were put in place at Texas' public colleges and universities as a result of the Hopwood decision will have a negative impact on minority interest in attending Texas A&M University. The present study utilized data collected from a nonrandom sample of high school seniors who were visiting the Texas A&M campus in the Fall of 1996. As expected, the data suggest that structural variables, such as the availability of student loans, and social psychological factors, such as family connections to Texas A&M are significantly correlated to minority students' interest in attending the university. This paper contains a brief history of affirmative action programs at Texas' state-funded colleges and universities, as well as a general overview of the Hopwood case. Suggestions for future study are offered, and the implications of the state's anti-affirmative action policies are discussed

    Effect of carbon dioxide enrichment on diffusive resistance for gas exchange, water use, and water use efficiency of greenhouse tomatoes

    No full text
    Typescript (photocopy).Three adjacent ventilated mini-greenhouses (MGH) made of clear polyethylene film, transmitting natural solar radiation, were enclosed in a conventional inflated polyethylene greenhouse. In each MGH, an equal number of tomato plants were grown in the Spring and the Fall of 1984, and kept at optimum levels of moisture and nutrients. From 10 to 98 days after emergence, CO2 levels in the mini-greenhouses were maintained at about 340, 700, and 1000 ppmv during the daytime. As CO2 levels in the MGH air increased from 340 to 1000 ppmv, the crop surface resistance, measured with a porometer, increased from about 30 to 100 s/m. CO2 enrichment also increased the ratio between the internal and the external CO2 levels of the leaves from 0.70 to 0.85. From the Fall 1984 data, a linear equation was derived to relate surface resistance to the internal CO2 level with an R-square value of 0.8. At an air exchange rate of 30 m^3/m^2/h in the MGH, the aerodynamic resistance, measured using a heated brass plate, or as computed by the residual method, averaged 225 s/m. This parameter dominated gas exchange by the plants at all CO2 levels. Therefore, the water use as measured by weighing mini-lysimeters (pots) on clear days, decreased only slightly, 15-20%, as result of the CO2 enrichment. This occurred in spite of an increase in leaf temperature of about 1.5 ��C. The leaf area and stomatal density were not markedly affected by CO2 enrichment. Both the instantaneous and the seasonal water use efficiency increased markedly, by about 70%, by growing the plants at a CO2 level of 1000 ppmv rather than 340 ppmv. In part, this was due to the reduction of water use, but mainly to the increase in assimilation rate, in total dry matter, and in the mass of fresh fruit harvested, being 70%, 31%, and 50%, respectively

    Minimal disc-type surfaces embedded in a perturbed cylinder

    No full text
    In the present note, we deal with small perturbations of an infinite cylinder in three-dimensional Euclidian space. We find minimal disc-type surfaces embedded in the cylinder and intersecting its boundary perpendicularly. The existence and localization of those minimal discs is a consequence of a non-degeneracy condition for the critical points of a functional related to the oscillations of the cylinder from the flat configuration

    Commencement

    No full text
    A color program for the Fall 1999 commencement ceremony at Texas A&M University-Commerce. It includes a program of events and a list of graduating students.https://lair.etamu.edu/scua-commencement-programs-all/1030/thumbnail.jp

    Commencement

    No full text
    A color program for the Fall 1996 commencement ceremony at Texas A&M University-Commerce. It includes a program of events and a list of graduating students.https://lair.etamu.edu/scua-commencement-programs-all/1028/thumbnail.jp

    Hardy-Poincaré inequalities with boundary singularities

    No full text
    Let Ω be a bounded domain in R^N (N≥2) such that 0 is in the boundary of Ω. In this paper we study the Hardy-Poincare' inequality for maps vanishing on ∂Ω. In particular we give sufficient and some necessary conditions so that the best constant is achieved

    Effect of gis learning on spatial ability

    Get PDF
    This research used a spatial skills test and cognitive-mapping test to examine the effect of GIS learning on the spatial ability and spatial problem solving of college students. A total of 80 participants, undergraduate students at Texas A&M University, completed pre- and post- spatial skills tests administered during the 2003 fall semester. Analysis of changes in the students��’ test scores revealed that GIS learning could help students improve their spatial ability. Strong correlations existed between the participants��’ spatial ability and their performance in the GIS course. The research also found that spatial ability improvement linked to GIS learning was not significantly related to differences in gender or to academic major (geography majors vs. science and engineering majors). A total of 64 participants, recruited from students enrolled in Introduction to GIS and Computer Cartography at Texas A&M University, completed pre- and post- cognitive-mapping tests administered during the 2003 fall semester. Students��’ performance on the cognitive-mapping test was used to measure their spatial problem solving. The study assumed that the analysis of the individual map-drawing strategies would reveal information about the cognitive processes participants used to solve their spatial tasks. The participants were requested to draw a map that could help their best friends find their way to three nearby commercial locations. The map-drawing process was videotaped in order to allow the researcher to classify subjects��’ map-drawing strategies. The study identified two distinctive map-drawing strategies: hierarchical and regional. Strategies were classified as hierarchical when subjects began by drawing the main road network across the entire map, and as regional when they completed mapping sub-areas before moving on to another sub-area. After completion of a GIS course, a significant number of participants (about half) changed their map-drawing strategies. However, more research is necessary to address why these changes in strategy came about
    corecore