Acute hemorrhagic conjunctivitis Investigation of a large-scale community outbreak in Dade County, Florida

JAMA ◽  
1983 ◽  
Vol 249 (10) ◽  
pp. 1283-1289 ◽  
Author(s):  
P. A. Patriarca
Keyword(s):  
Large Scale ◽  
Dade County ◽  
Acute Hemorrhagic Conjunctivitis

Transit Network Optimization

2005 ◽  
Vol 1923 (1) ◽  
pp. 180-188 ◽  
Author(s):  
Fang Zhao ◽  
Ike Ubaka ◽  
Albert Gan
Keyword(s):  
Network Optimization ◽  
Large Scale ◽  
Search Algorithm ◽  
Benchmark Problems ◽  
Dade County ◽  
Transit Network ◽  
Search Spaces ◽  
Route Network ◽  
Global Optimal ◽  
Transit Route

This paper presents a mathematical methodology for transit route network optimization. The goal is to provide an effective computational tool for optimization of a large-scale transit route network. The objectives are to minimize transfers and maximize service coverage. Formulation of the method consists of three parts: representation of transit route network solution search spaces, representation of transit route and network constraints, and a stochastic search scheme capable of finding the expected global optimal result on the basis of an integrated simulated annealing, tabu, and greedy search algorithm. The methodology has been tested with published solutions to benchmark problems and applied to a large-scale realistic network optimization problem in Miami–Dade County, Florida.

Principal time management skills

2015 ◽  
Vol 53 (6) ◽  
pp. 773-793 ◽  
Author(s):  
Jason A. Grissom ◽  
Susanna Loeb ◽  
Hajime Mitani
Keyword(s):  
Public Schools ◽  
Job Stress ◽  
Time Management ◽  
Large Scale ◽  
School Principals ◽  
Interpersonal Relationship ◽  
Relationship Building ◽  
Dade County ◽  
Management Skills ◽  
Content Type

Purpose – Time demands faced by school principals make principals’ work increasingly difficult. Research outside education suggests that effective time management skills may help principals meet job demands, reduce job stress, and improve their performance. The purpose of this paper is to investigate these hypotheses. Design/methodology/approach – The authors administered a time management inventory to nearly 300 principals in Miami-Dade County Public Schools, the fourth-largest school district in the USA. The authors analyzed scores on the inventory descriptively and used them to predict time-use data collected via in-person observations, a survey-based measure of job stress, and measures of perceived job effectiveness obtained from assistant principals and teachers in the school. Findings – Principals with better time management skills allocate more time in classrooms and to managing instruction in their schools but spend less time on interpersonal relationship-building. Perhaps as a result of this tradeoff, the authors find that associations between principal time management skills and subjective assessments of principal performance are mixed. The authors find strong evidence, however, that time management skills are associated with lower principal job stress. Practical implications – Findings suggest that building principals’ time management capacities may be a worthwhile strategy for increasing time on high-priority tasks and reducing stress. Originality/value – This study is the first to empirically examine time management among school principals and link time management to key principal outcomes using large-scale data.

scholarly journals Lessons from a Landscape Irrigation Rebate Program in Miami Dade County

2021 ◽  
Author(s):  
Haimanote Bayabil ◽  
Laura Vasquez ◽  
Jesus Lomeli ◽  
Patrick Martin
Keyword(s):  
Large Scale ◽  
Dade County ◽  
Water Savings ◽  
Freshwater Resources ◽  
Average Water ◽  
Water Uses ◽  
Extension Personnel

We calculated savings in outdoor water uses from 37 properties in Fisher Island, Florida, that were retrofitted with smart Evapotranspiration-based irrigation controllers through the Miami Dade County’s Landscape Irrigation Rebate Program. We found average water savings of 11.4 million gallons per year from the 37 properties on the island. We discuss the roles of extension personnel in developing and effectively managing an irrigation rebate program and the implications of results from this program for large scale efforts towards efficient use of freshwater resources.

scholarly journals Examining Spillover Effects From Teach For America Corps Members in Miami-Dade County Public Schools

2018 ◽  
Vol 70 (5) ◽  
pp. 453-471 ◽  
Author(s):  
Ben Backes ◽  
Michael Hansen ◽  
Zeyu Xu ◽  
Victoria Brady
Keyword(s):  
Public Schools ◽  
Mathematics Achievement ◽  
Large Scale ◽  
Spillover Effects ◽  
Teach For America ◽  
Dade County ◽  
Large Numbers ◽  
Cluster Strategy ◽  
Student Test ◽  
Over Time

This article examines Teach For America’s (TFA) placement strategy in Miami-Dade County Public Schools, in which large numbers of TFA corps members are placed as clusters into a targeted set of disadvantaged schools, to investigate whether the large-scale infusion of TFA corps members into these schools induced broader improvements across the school. Using 6 years of administrative data from the district, we exploit variation in TFA density over time within schools to measure the extent to which increases in density were associated with improvements in student test scores. We find that many of the schools chosen to participate in the cluster strategy experienced large subsequent gains in mathematics achievement. These gains were driven in part by the direct effect of having larger numbers of classrooms staffed by effective TFA teachers. However, we do not find any evidence that the clustering strategy led to any spillovers on schoolwide performance.

scholarly journals Reducing Phosphorus Use for Sweet Corn Grown on Calcareous Gravelly Soils

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 987D-987
Author(s):  
Teresa Olczyk ◽  
Yuncong Li ◽  
Xing Wang ◽  
Eric Simonne
Keyword(s):  
Large Scale ◽  
Sweet Corn ◽  
Calcareous Soils ◽  
Leaf Tissue ◽  
Field Trials ◽  
Nutrient Concentrations ◽  
Dade County ◽  
P Fertilizer ◽  
Large Scale Field ◽  
Quality Response

Sweet corn (Zea mays) is a major cash crop produced on calcareous soils in Miami–Dade County. Applications of large amounts of phosphorus (P) fertilizer for many years resulted in the accumulation of high levels of P in these soils. Accumulated P is slowly released into the soil solution to become available for plant roots. Previous studies conducted in this area showed little or no yield and crop quality response to P fertilizer applications. Large-scale field trials with reduced P applications were conducted in a grower's field. The treatments were: 1) no P; 2) 50% grower's rate; and 3) 100% grower's rate with six repilications. The data collected included: plant stand, height, nutrient concentrations in leaf tissue, leaf chlorophyll, tip fill, number, and weight of marketable ears/acre. Reduced rates of P fertilizer did not significantly reduce yield and quality of sweet corn.

Some comments about observations and image processing of comet 29P/Schwassmann-Wachmann 1

1999 ◽  
Vol 173 ◽  
pp. 243-248
Author(s):  
D. Kubáček ◽  
A. Galád ◽  
A. Pravda
Keyword(s):  
Image Processing ◽  
Large Scale ◽  
Harvard College ◽  
Oak Ridge ◽  
Large Scale Structures ◽  
Short Period Comet ◽  
Short Period ◽  
Scale Structures ◽  
Harvard College Observatory ◽  
Period Comet

AbstractUnusual short-period comet 29P/Schwassmann-Wachmann 1 inspired many observers to explain its unpredictable outbursts. In this paper large scale structures and features from the inner part of the coma in time periods around outbursts are studied. CCD images were taken at Whipple Observatory, Mt. Hopkins, in 1989 and at Astronomical Observatory, Modra, from 1995 to 1998. Photographic plates of the comet were taken at Harvard College Observatory, Oak Ridge, from 1974 to 1982. The latter were digitized at first to apply the same techniques of image processing for optimizing the visibility of features in the coma during outbursts. Outbursts and coma structures show various shapes.

Evolution of Large-Scale Coronal Structures

1994 ◽  
Vol 144 ◽  
pp. 29-33
Author(s):  
P. Ambrož
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Large Scale ◽  
Coronal Magnetic Field ◽  
Source Surface ◽  
Solar Cycles ◽  
Characteristic Relationship ◽  
The Magnetic Field ◽  
Coronal Structures

AbstractThe large-scale coronal structures observed during the sporadically visible solar eclipses were compared with the numerically extrapolated field-line structures of coronal magnetic field. A characteristic relationship between the observed structures of coronal plasma and the magnetic field line configurations was determined. The long-term evolution of large scale coronal structures inferred from photospheric magnetic observations in the course of 11- and 22-year solar cycles is described.Some known parameters, such as the source surface radius, or coronal rotation rate are discussed and actually interpreted. A relation between the large-scale photospheric magnetic field evolution and the coronal structure rearrangement is demonstrated.

Large-scale Motion of Solar Filaments

2000 ◽  
Vol 179 ◽  
pp. 205-208
Author(s):  
Pavel Ambrož ◽  
Alfred Schroll
Keyword(s):  
Magnetic Flux ◽  
Proper Motion ◽  
Time Scale ◽  
Large Scale ◽  
Accuracy Of Measurements ◽  
Solar Filaments ◽  
General Movement ◽  
Scale Motion ◽  
Velocity Scatter

AbstractPrecise measurements of heliographic position of solar filaments were used for determination of the proper motion of solar filaments on the time-scale of days. The filaments have a tendency to make a shaking or waving of the external structure and to make a general movement of whole filament body, coinciding with the transport of the magnetic flux in the photosphere. The velocity scatter of individual measured points is about one order higher than the accuracy of measurements.

Some applications of electron beam microanalysis techniques in VLSI process evaluation

1983 ◽  
Vol 41 ◽  
pp. 160-161
Author(s):  
Simon Thomas
Keyword(s):  
Integrated Circuits ◽  
Process Evaluation ◽  
Large Scale ◽  
Technology Development ◽  
Analytical Techniques ◽  
Successful Implementation ◽  
Analysis Of Failures ◽  
Characterization Of Materials ◽  
Circuits Vlsi

Trends in the technology development of very large scale integrated circuits (VLSI) have been in the direction of higher density of components with smaller dimensions. The scaling down of device dimensions has been not only laterally but also in depth. Such efforts in miniaturization bring with them new developments in materials and processing. Successful implementation of these efforts is, to a large extent, dependent on the proper understanding of the material properties, process technologies and reliability issues, through adequate analytical studies. The analytical instrumentation technology has, fortunately, kept pace with the basic requirements of devices with lateral dimensions in the micron/ submicron range and depths of the order of nonometers. Often, newer analytical techniques have emerged or the more conventional techniques have been adapted to meet the more stringent requirements. As such, a variety of analytical techniques are available today to aid an analyst in the efforts of VLSI process evaluation. Generally such analytical efforts are divided into the characterization of materials, evaluation of processing steps and the analysis of failures.

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