The state of blacks in higher education

This is a study initiated by the National Association for Equal Opportunity in Higher Education (NAFEO) that provides an overview on the state of blacks in higher education from 1986 through 2005. It focuses on bachelor’s, master’s, and doctorate degrees earned by black Americans. It also examines the advancement, or lack thereof, of black faculty members. The study uses data from the Integrated Postsecondary Education Data Series and the Survey of Doctorial Recipients.blacks; higher education;

Evaluation of the resistance of few citrus rootstocks to alkalinity by applying a faste test of secreening

Alkalinity of Moroccan soils is the major abiotic constraint on citrus production area. The best choice of citrus rootstocks adequate and resistant is a better solution to avoid this problem. The aim of this study is to develop a fast test of citrus rootstocks screening towards alkalinity. The alkaline stress was applied on ten citrus rootstocks two month old, using irrigation with a Hoagland and Arnon solution added with 1 g CaCO(3)/L and adjusted at various pH levels 6, 7 and 9. Observations concerned symptoms incidence and severity of iron chlorosis after two months of rearing. Results permitted to classify Poncirus trifoliata and Flying dragon as the most sensitive to alkalinity stresses, whereas, Citrus volkameriana and Citrus macrophylla were resistant. These conclusions are equivalent with those obtained with old citrus rootstocks in field trials

Historically Black Colleges and Universities are Vital and Valuable to the United States

Though Historically Black Colleges and Universities (HBCUs) are little recognized, both in the United States and internationally, rigorous empirical analysis reveals that given their circumstances, they typically perform at a high level. This is the first comprehensive empirical analysis that has examined the performance of HBCUs

On the generalized Hartley-Hilbert and Fourier-Hilbert transforms

In this paper, we discuss Hartley-Hilbert and Fourier-Hilbert transforms on a certain class of generalized functions. The extended transforms considered in this article are shown to be well-defined, one-to-one, linear and continuous mappings with respect to δ and Δ convergence. Certain theorems are also established

Pulling Back the Veil: What Determines HBCU Campus Enrollments

Historically black colleges and universities (HBCUs) are among the least researched sectors of American higher education. This article addresses a portion of this knowledge deficit by focusing on the determinants of the full-time equivalent enrollments of 50 HBCUs between fiscal year FY 2005 and FY 2018 and then comparing them to a broad sample of 182 non-HBCUs. The most noteworthy specific results generated by our analyses are: (1) increased recruitment of white students by HBCUs may not hold the key to HBCU enrollment success; (2) the incomes of the households from which students emanate have a major positive influence on HBCU enrollments; (3) HBCU campuses whose resource allocations pay more attention to the instruction and student services have higher enrollments; (4) intercollegiate athletic expenditures in general and the operation of an Football Championship Subdivision (FBS)-level football program, in particular, are massively important determinants of HBCU enrollments; and (5) the predicted FY full-time equivalent enrollment (FTE) of an HBCU is less than one-half of what would hold true for a comparably situated non-HBCU

Validating HCS and SIDRA Software for Estimating Delay at Signalized Intersections in Jordan

The main objective of this research was to validate the Highway Capacity Software (HCS) and the Signalized and Unsignalized Intersection Design and Research Aid (SIDRA) Software which are widely used for estimating delay at signalized intersections in Jordan. Fifty four hours of data from eighteen legs at five signalized intersections were collected from Irbid city; the second largest city in Jordan. Traffic volumes and control delay were measured during peak and off-peak periods using video cameras. Data on geometric design elements, signal timings and phasings and vehicular speeds were measured through a field survey. The results of the analysis indicated that both models can be improved significantly by calibrating the basic saturation flow rate or bus PCE factor. However, the best improvement was obtained by calibrating both the basic saturation flow rate and the bus PCE factor simultaneously. It was also found that the two software are good predictors for control delay at signalized intersections in Jordan after calibration. However, SIDRA was found to be better than HCS 2000