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Using Inductive Loops to Count Bicycles in Mixed Traffic
No full textInductive loops are commonly used for bicycle detection both on- and off-street, but until recently, few such detectors were able to differentiate between bicycles and motor vehicles. For this reason, automated bicycle counting is usually confined to off-street locations. With bicycle use increasing around the world, particularly on shared roadway facilities such as bicycle boulevards, there is a growing need to detect bicycles in on-street traffic conditions. This study tests the accuracy of an off-the-shelf inductive-loop technology designed to count bicycles in mixed traffic conditions and compares this accuracy to similar inductive loop technology used for detection on separated bicycle facilities. The results show that the inductive loop technology is capable of differentiating bicycles from motor vehicles and counting bicycles in traffic with reasonable accuracy, but an individual bicycle may be undetected or counted more than once. Overall, there was a 3 percent undercount for the counter on the separated path and a 4 percent overcount for the counter on the shared roadway. The results show that refinements in inductive loop detector/counter software and setup have made it possible to distinguish bicycles from motor vehicles; however, care must be taken in installation, calibration, and maintenance to ensure that the counters are accurate
Dr. Cheryl Davenport-Dozier
No full textDr. Cheryl Davenport Dozier was named the 13th president of Savannah State University on May 9, 2012, after serving one year as interim president. She is the university's current President. Prior to taking the reigns at Savannah State University, Dozier served as associate provost and chief diversity officer for the Office of Institutional Diversity at the University of Georgia.
Prior to taking the reins at Savannah State, Dozier served as associate provost and chief diversity officer for the Office of Institutional Diversity at the University of Georgia. In that role — to which she was appointed in 2006 after four years as assistant vice president of academic affairs at the Gwinnett University Center — Dozier led UGA’s efforts to evaluate existing programs and develop new initiatives to support diversity and equity. Since beginning her tenure at Savannah State, Dozier has launched a number of programs aimed at increasing student graduation and retention rates, improving customer service and strengthening external relationships.
A native of New York, Dozier earned her bachelor’s degree from Fairleigh Dickinson University, her Master of Social Work degree from the Atlanta University School of Social Work (now Clark-Atlanta University) and her Doctor of Social Work degree from Hunter College at the Graduate Center of the City University of New York. She is an active member of numerous professional and civic organizations including the board of the United Way of the Coastal Empire, Savannah Economic Development Authority, Telfair Museums Board of Trustees, the Mid-Eastern Athletic Conference (MEAC) Council of Presidents and president emerita of the Georgia Association for Women in Higher Education
Randi Tyler Greer Thompson
No full textSouthern Liquefied Natural Gas (SLNG) vessels offload their cargo of liquefied natural gas (LNG) at the SLNG-El Paso, Elba Island Facility in Savannah, Georgia. The vessels are required to withdraw 11.3 to 25.6 millions of gallons of Savannah River water as ballast at the SLNG-El Paso berthing slip prior to leaving port to maintain vessel stability. The purpose of this study was to determine if cumulative water uptake would have any impacts on local fisheries by removing fish, crab, or shrimp eggs, larvae, and/or juvenile stages from the river. Ballast water uptake was simulated on site at the Elba Island facility and entrained organisms were collected using a 200 μm mesh plankton net. Taxa were identified and analyzed for seasonal, tidal, and night/day differences. Seasonal and tidal phase differences were tested with a nonparametric Kruskal-Wallis One-Way ANOVA on Ranks, and all pairwise multiple comparisons were made using Dunn’s Method. T-tests were performed for night and day data. Nine taxa of fish and nine invertebrate taxa were collected, but only three of these were somewhat commercially important and none were endangered or threatened. Fiddler crabs (n = 6,797) and mysids (n = 5,659) were the most abundant species in samples. Seasonal differences in abundance were the most common differences observed in this study with warmer months in having more organisms entrained. Crab larvae were also commonly more abundant at night. The LNG carriers could reduce fiddler crab entrainment by 96% and mud crab entrainment by 92% by avoiding night ballasting during summer months July-September. Fish entrainment could be reduced if ballasting was minimized to the maximum extent possible from February to May.Master of Science in Marine Science
Comparing the residential origins of homeless families and homeless individuals in Miami-Dade County, Florida
Full text linkThis study identifies and compares the residential origins of homeless families and homeless individuals. The study also analyses the spatial distribution of residential origins of homeless families and homeless individuals with the factors associated with the risk of homelessness. Data were obtained through the 2005 homelessness survey in Miami-Dade County, Florida. The analyses reveal the statistically significant differences in the spatial distribution of the residential origins of homeless families and homeless individuals. The results clearly suggest that homeless individuals are more highly concentrated in neighbourhoods of high poverty than homeless families. The study suggests the possibility that drift effects drive more homeless individuals but fewer homeless families to move to deprived inner-city areas. The study also suggests that the spatial analysis of prior addresses of homeless families and individuals in this study can provide some ideas for other major cities or regions to better formulate homelessness prevention and outreach programmes
Gender Differences in the Residential Origins of the Homeless: Identification of Areas with High Risk of Homelessness
Full text linkThis article offers a gender perspective on homelessness concerning residential origins. Data were obtained through the 2005 homelessness survey in Miami-Dade County, Florida. The residential origins of homeless women are more widespread and less concentrated in the neighborhoods of high poverty than those of homeless men. Areas with lack of low-rent housing units are at greatest risk of generating homeless men and women. The rate of residential origins of homeless men increases with the proportion of Hispanics and African Americans, particularly those living below poverty level. Areas with a high proportion of female-headed households with young children and unemployed females are strongly significant in producing more homeless women. Planners should take into account a geographic and population-targeted strategy in designing homelessness prevention interventions
All that jazz: The success of jazz musicians in three metropolitan areas
Full text linkWe draw on a survey of jazz musicians to examine their economic success (annual amount of money earned through music) and critical success (national recognition of their talent). In doing so, we bring together literatures that are not normally in dialogue—one addressing generalism and the careers of creative personnel and the other addressing the circulation of capitals (e.g., cultural capital) in fields of cultural production. We find, among other things, that aesthetic generalism (being conversant in a wide range of genres) has a positive impact on both earnings and national recognition—with veteran musicians particularly benefitting from the relationship between aesthetic generalism and critical success. Those musicians with much social capital (e.g., number of local musicians known by name) and much human capital (years of musical experience) enjoy heightened economic, but not critical, success. Technical generalism (playing a wide range of musical instruments) has no bearing on economic success but has a negative impact on critical success—particularly for veteran jazz musicians. We discuss how such findings demonstrate the analytical utility of heeding the resources and “signaled competencies” that creative personnel have for negotiating fields of cultural production
Where the homeless children and youth come from: A study of the residential origins of the homeless in Miami-Dade County, Florida
Full text linkThis study investigates where homeless children and youth come from and identifies factors associated with the spatial distribution of the residential origins of homeless children and youth. Data was obtained through a point-in-time homelessness survey in Miami-Dade County, Florida in January 2005. The study identified 545 homeless children and youth in 219 homeless families whose residential origins in Miami-Dade County, Florida. Their residential origins are not heavily concentrated in poor neighborhoods, but are also located in less poor neighborhoods. The study reveals that domestic violence that is not confined strictly to neighborhoods of high poverty is the factor that explains the spatial distribution of the residential origins of homeless children and youth. This study also reveals that areas characterized by deprivation are strongly and positively significant in producing more homeless children and youth
Microwave-Assisted Esterification of N-Acetyl-L-Phenylalanine Using Modified Mukaiyama’s Reagents: A New Approach Involving Ionic Liquids
Full text linkInspired by the concept of ionic liquids (ILs), this study modified the original Mukaiyama’s reagent, 2-chloro-1-methylpyridinium iodide (m.p. 200-dec), from ionic solid into liquids by changing its anion. The esterification of N-acetyl-L-phenylalanine was investigated as a model reaction. The microwave irradiation was more effective in esterifying N-acetyl-L-phenylalanine than the conventional reflux method. The original Mukaiyama’s reagent was modified into ILs through manipulating its anion. However, only non-nucleophilic anions (such as EtSO4- and Tf2N-) were favorable since nucleophilic ones (such as CF3COO- and CH3COO-) could exchange with chlorine resulting in non-reactive coupling reagents. Two modified Mukaiyama’s compounds (i.e. hydrophilic [2- ClMePy][EtSO4] and hydrophobic [2-ClMePy][Tf2N]) have been identified as the best ILtype coupling reagents. The esterification reaction was greatly enhanced by using 1- methylimidazole as the base instead of conventional toxic tertiary amines, and by using excess amount of alcohols as solvents instead of dichloromethane. Overall, the method reported is effective and ‘greener’
Planning the Megacity: Jakarta in the Twentieth Century
No full textThe article reviews the book "Planning the Megacity: Jakarta in the Twentieth Century," by Christopher Silver
Dr. Earl Glenn Yarbrough
No full textDr. Earl Yarbrough, Sr. served as the twelfth president of Savannah State University from 2007 to 2011. Yarbrough is a graduate of Wichita State University in Kansas. He holds a master’s degree in industrial studies from California State University at Los Angeles and a doctorate in industrial education from Iowa State University. He was a professor of engineering at Virginia State University and had previously served as the university’s provost