An Interactive Spray Drift Simulator

The off target movement of pesticides, known as spray drift, results in a reduction in application rates, damage to non-target organisms, and environmental concerns. Much of this drift can be eliminated if its prevalence is understood and best management practices are implemented. Drift prediction software has been developed to serve as a management tool in determining the effects of applying pesticides under certain operating conditions. To further increase the usefulness and instructiveness of such programs, a program was developed which links spray drift prediction software (DRIFTSIM) with a GPS simulator to obtain a two dimensional representation of drift for simulated ground based spraying event. The program was evaluated using a variety of operating conditions to determine their respective effects on drift deposition levels. Results from the simulations show the importance of choosing the largest sufficient nozzle size, operating under low wind speeds, and spraying at the lowest possible boom height. Analysis of multi-swath simulations showed patterns of increased and reduced application rates due to spray drift

The Impact of Built Environment on Pedestrian Crashes and the Identification of Crash Clusters on an Urban University Campus

Objectives: Motor vehicle-pedestrian crash is a significant public health concern. The urban campus of Georgia State University poses unique challenges due to a large number of students and university employees. The objectives of this study are twofold: (1) to examine the correlation between specific features of the built environment on and around the University campus and pedestrian crashes; and (2) to identify crash clusters in the study area using network-based geospatial techniques.Methods: We obtained pedestrian crash data (n=119) from 2003 to 2007 from Georgia Department of Transportation and evaluated environmental features pertaining to the road infrastructure, pedestrian infrastructure and streetscape for each road segment and intersection. Prevalence rate of each feature with pedestrian crashes present was calculated. We used network-based Kernel Density Estimation to identify the high density road segments and intersections, then used network-based K-function to examine the clustering of pedestrian crashes.Results: Over 50% of the crosswalk signs, pedestrian signals, public transit, and location branding signs (more than three) at intersections involved pedestrian crashes. More than half of wider streets (greater than 29 feet), two-way streets, and streets in good condition had pedestrian crashes present. Crashes occurred more frequently in road segments with strong street compactness and mixed land use present and were significantly (p<0.05) clustered in these high-density zones.Conclusions: Findings can be used to understand the correlation between built environment and pedestrian safety, to prioritize the high-density zones for intervention efforts, and to formulate research hypotheses for investigating pedestrian crashes. [West J Emerg Med. 2010; 11(3): 295-302.

Nozzle and droplet size effects on pesticide performance and drift

Efficient spray application requires applying the correct amount of pesticide in a proper manner to successfully reduce the pest population. In addition pesticide should not be allowed to drift to non-target off-site plants, insects, animals, or humans. Balancing between use of a droplet size small enough for efficacious application, yet large enough to avoid off-target drift is an important consideration for most applications

The Ursinus Weekly, April 5, 1907

The German-American patriot • Baseball outlook • Pictures for history room • Athletic Association • Musical clubs • Here and there • Intercollegiate • Alumni notes • Reserves\u27 baseball schedule • Literary Supplement: The college bell; Menominee; Rudyard Kipling; The passing of the American home; The methods of Thomas Morrishttps://digitalcommons.ursinus.edu/weekly/2939/thumbnail.jp

The French Army in politics, 1945-1962

(print) x, 427 p. ; 23 cm"A publication of the Mershon Center for Education in National Security."Part I : The "Great Mute" and the Beginnings of Its Demise, 1815-1945 -- I. The Parameters of Discipline 3 -- II. Foundations of Civilian Control 21 -- III. Disgrace through Discipline, 1939-1945 56 -- Part II : The Army and the Nation : Isolation and Estrangement -- IV. Reluctant Mercenaries 93 -- V. Social Origins and Politics 128 -- Part III : The Political Demands of Revolutionary-Guerrilla War -- VI. Political Challenge and Military Response 149 -- VII. Counterinsurgency and Military Politics 170 -- Part IV : Political Authority and Civilian Control -- VIII. Immobilisme and Delegation of Power 207 -- IX. Political Authority and Civilian Control in the Praetorian Years 240 -- Part V : Attitudes and Ideology -- X. The Rivals of Discipline 277 -- XI. The French Military Doctrine of La Guerre Revolutionnaire 308 -- XII. Cleavages within the Military Establishment 337 -- Conclusion 365 -- Bibliography 377 -- Index 40

A rare case of sinus of valsalva-right atrial fistula secondary to an abscess perforation from underlying aortic valve endocarditis

Sinus of Valsalva-right atrial fistulas are abnormal connections between the aorta and the right atrium, and present challenging surgical conditions. An extremely rare etiology of aorto-right atrial fistula is infective endocarditis. This case report presents a 21 year old Caucasian female patient who had native aortic valve Staphylococcus aureus endocarditis complicated by sinus of Valsalva abscess perforation associated with an acute heart block, an aorto-right atrial fistula, severe heart failure, and cardiogenic shock. She underwent emergent aortic valve replacement and complex sinus of Valsalva fistula pericardial patch reconstruction and repair. This case report further explores the advantages and disadvantages of different valves for different patient populations, and evaluates the patient\u27s prosthesis mismatch and effective orifice area

The Ursinus Weekly, January 18, 1907

Ursinus Union • The rose of Savoy • Alumni notes • Society notes • College news • Exchanges • Literary Supplement: The new football; Che sara, sara; College fraternities; Two eighteenth century dramatistshttps://digitalcommons.ursinus.edu/weekly/2928/thumbnail.jp

Adoptive transfer of cytomegalovirus-specific CTL to stem cell transplant patients after selection by HLA–peptide tetramers

Stem cell transplantation is used widely in the management of a range of diseases of the hemopoietic system. Patients are immunosuppressed profoundly in the early posttransplant period, and reactivation of cytomegalovirus (CMV) remains a significant cause of morbidity and mortality. Adoptive transfer of donor-derived CMV-specific CD8(+) T cell clones has been shown to reduce the rate of viral reactivation; however, the complexity of this approach severely limits its clinical application. We have purified CMV-specific CD8(+) T cells from the blood of stem cell transplant donors using staining with HLA-peptide tetramers followed by selection with magnetic beads. CMV-specific CD8(+) cells were infused directly into nine patients within 4 h of selection. Median cell dosage was 8.6 x 10(3)/kg with a purity of 98% of all T cells. CMV-specific CD8(+) T cells became detectable in all patients within 10 d of infusion, and TCR clonotype analysis showed persistence of infused cells in two patients studied. CMV viremia was reduced in every case and eight patients cleared the infection, including one patient who had a prolonged history of CMV infection that was refractory to antiviral therapy. This novel approach to adoptive transfer has considerable potential for antigen-specific T cell therapy