scholarly journals JAMAICA BAY HURRICANE BARRIER

1970 ◽  
Vol 1 (12) ◽  
pp. 125
Author(s):  
Frank L. Panuzio
Keyword(s):  
New York ◽  
Mathematical Models ◽  
High Volume ◽  
Beach Erosion ◽  
High Peak ◽  
Flood Protection ◽  
Rainfall Runoff ◽  
Design Storm ◽  
Jamaica Bay ◽  
Ecological Objectives

A 12 4 mile beach erosion control and hurricane flood protection project includes Jamaica Bay and the Rockaway Inlet in the southwest corner of Long Island, New York«i The project would provide 6 1 miles of beach fill and floodwalls along the Atlantic Ocean shore and 6 3 miles of inland structures to tie back to high ground, including a 0 9 mile barrier across the inlet The barrier, with a 300 foot gated opening and a 300 foot ungated opening, would permit suppression of the design hurricane surge so as to eliminate the need of flood protection works within the bay Linear mathematical models were used to determine these openings Because of the limitation of these models to produce adequate data m the bay pertinent to environmental and ecological considerations, three hydraulic models were utilized General conclusions drawn from the hydraulic model test data are that the results of the mathematical models were upheld, a design storm with high peak is critical for determining the height of protection, a design storm with high volume rather than high peak plus rainfall runoff is critical in determining ungated openings and suppression of bay levels, and there is a combination of gated and ungated openings that would meet the flood protection, navigation, environmental and ecological objectives.

Synthetic Design Storm and its Relation to Intensity-Duration Frequency Curves

1984 ◽  
Vol 16 (8-9) ◽  
pp. 69-83 ◽  
Author(s):  
P Urcikán ◽  
J Horváth
Keyword(s):  
Mathematical Models ◽  
Rainfall Runoff ◽  
Intensity Maximum ◽  
Evaluation Period ◽  
Design Storm ◽  
Maximum Time ◽  
Time Position ◽  
Exponential Equations ◽  
Intensity Duration Frequency ◽  
Frequency Curves

In the current hydrodynamic rainfall-runoff models the design rainfalls have been applied, the course of which may be simulated by means of several stochastic-mathematical models. The methods applied in developing the design storms with optional time position of the intensity maximum with increasing and decreasing intensity course, expressed by means of exponential equations have been analysed in this paper. The medium value of the intensity maximum time position tmax/td = 0,317 was identified in eight recording raingauge stations from the set of actual rainfalls of a five-year evaluation period.

Book review

2003 ◽  
Vol 51 (3) ◽  
pp. 369
Author(s):  
Z. Berzsenyi
Keyword(s):  
New York ◽  
Mathematical Models ◽  
Crop Growth ◽  
Growth And Yield ◽  
Madison Avenue

A. R. Overman and R. V. Scholtz III.: Mathematical Models of Crop Growth and Yield. Marcel Dekker, 270 Madison Avenue, New York, NY 10016. 2002. Hardcover, 344 pp., 150.00. ISBN 0-8247-0825-3.

Modifications of rainfall runoff and decision finding models for on-line simulation in real time control

1999 ◽  
Vol 39 (9) ◽  
pp. 201-207
Author(s):  
Andreas Cassar ◽  
Hans-Reinhard Verworn
Keyword(s):  
Real Time ◽  
Urban Drainage ◽  
Rain Event ◽  
Rainfall Runoff ◽  
Real Time Control ◽  
Design Storm ◽  
Time Control ◽  
Timing Data ◽  
On Line ◽  
Rainfall Runoff Model

Most of the existing rainfall runoff models for urban drainage systems have been designed for off-line calculations. With a design storm or a historical rain event and the model system the rainfall runoff processes are simulated, the faster the better. Since very recently, hydrodynamic models have been considered to be much too slow for real time applications. However, with the computing power of today - and even more so of tomorrow - very complex and detailed models may be run on-line and in real time. While the algorithms basically remain the same as for off-line simulations, problems concerning timing, data management and inter process communication have to be identified and solved. This paper describes the upgrading of the existing hydrodynamic rainfall runoff model HYSTEM/EXTRAN and the decision finding model INTL for real time performance, their implementation on a network of UNIX stations and the experiences from running them within an urban drainage real time control project. The main focus is not on what the models do but how they are put into action and made to run smoothly embedded in all the processes necessary in operational real time control.

Relationship of hospital volume on outcomes in patients with acute pulmonary embolism: Analysis of a 70,000 patient database

2020 ◽  
pp. 1358863X2097026
Author(s):  
Mark Finkelstein ◽  
Mario A Cedillo ◽  
David C Kestenbaum ◽  
Obaib S Shoaib ◽  
Aaron M Fischman ◽  
...  
Keyword(s):  
New York ◽  
Pulmonary Embolism ◽  
Length Of Stay ◽  
New York State ◽  
Multivariable Analysis ◽  
High Volume ◽  
Categorical Variables ◽  
Patient Database ◽  
Very High ◽  
Total Charges

Positive relationships between volume and outcome have been seen in several surgical and medical conditions, resulting in more centralized and specialized care structures. Currently, there is a scarcity of literature involving the volume–outcome relationship in pulmonary embolism (PE). Using a state-wide dataset that encapsulates all non-federal admissions in New York State, we performed a retrospective cohort study on admitted patients with a diagnosis of PE. A total of 70,443 cases were separated into volume groups stratified by hospital quartile. Continuous and categorical variables were compared between cohorts. Multivariable regression analysis was conducted to assess predictors of 1-year mortality, 30-day all-cause readmission, 30-day PE-related readmission, length of stay, and total charges. Of the 205 facilities that were included, 128 (62%) were labeled low volume, 39 (19%) medium volume, 23 (11%) high volume, and 15 (7%) very high volume. Multivariable analysis showed that very high volume was associated with decreased 30-day PE-related readmission (OR 0.64; 95% CI, 0.55 to 0.73), decreased 30-day all-cause readmission (OR 0.84; 95% CI, 0.79 to 0.89), decreased 1-year mortality (OR 0.85; 95% CI, 0.80 to 0.91), decreased total charges (OR 0.96; 95% CI, 0.94 to 0.98), and decreased length of stay (OR 0.94; 95% CI, 0.92 to 0.96). In summary, facilities with higher volumes of acute PE were found to have less 30-day PE-related readmissions, less all-cause readmissions, shorter length of stay, decreased 1-year mortality, and decreased total charges.

The Science, Industry and Business Library of the New York Public Library: A High-Technology Research Centre for High-Volume Public Use

1998 ◽  
Vol 10 (1) ◽  
pp. 39-62
Author(s):  
Kristin McDonough
Keyword(s):  
New York ◽  
Customer Service ◽  
Information Service ◽  
Public Library ◽  
High Technology ◽  
High Volume ◽  
Research Centre ◽  
Technology Research ◽  
York Public Library ◽  
New York Public Library

In 1996, its centenary year, the New York Public Library opened its Science, Industry and Business Library (SIBL) in a former department store in mid-town Manhattan, occupying 160,000 square feet of usable floor space. The building, which has received six awards, is designed to be both attractive and highly functional. The $100 million project was funded by a combination of private and government funds. The concept is of a specialized high technology research centre with unparallelled older and current print collections (1.2 million books and serials) and access to electronic resources, which also incorporates a 50,000-item circulating library of popular print, audiovisual and multimedia materials. All of the resources are available to the public at no charge. Much of the collection is on open access. There are several professionally staffed information service points. The provision of extensive training sessions is proving to be an outstanding success, more than 20,000 people having registered since SIBL opened. A three-year grant from the W.K. Kellogg Foundation has enabled SIBL to train information professionals in the three crucial areas of technological competence, customer service and professional development.

340 Trends and Disparities in Cervical Spine Fusion Procedure Utilization in the New York State

Neurosurgery ◽  
2017 ◽  
Vol 64 (CN_suppl_1) ◽  
pp. 276-276
Author(s):  
Rui Feng ◽  
Mark Finkelstein ◽  
Eric Karl Oermann ◽  
Michael Palese ◽  
John M Caridi
Keyword(s):  
New York ◽  
African American ◽  
Cervical Spine ◽  
New York State ◽  
High Volume ◽  
Spine Fusion ◽  
York State ◽  
High Volume Hospital ◽  
Low Volume ◽  
Cervical Spine Fusion

Abstract INTRODUCTION There has been a steady increase in spinal fusion procedures performed each year in the US, especially cervical and lumbar fusion. Our study aims to analyze the rate of increase at low-, medium-, and high-volume hospitals, and socioeconomic characteristics of the patient populations at these three volume categories. METHODS We searched the New York State, Statewide Planning and Research Cooperative System (SPARCS) database from 2005 to 2014 for the ICD-9-CM Procedure Codes 81.01 (Fusion, atlas-axis), 81.02 (Fusion, anterior column, other cervical, anterior technique), and 81.03 (Fusion, posterior column, other cervical, posterior technique). Patients' primary diagnosis (ICD-9-CM), age, race/ethnicity, primary payment method, severity of illness, length of stay, hospital of operation were included. We categorized all 122 hospitals high-, medium-, and low-volume. We then described the trends in annual number of cervical spine fusion surgeries in each of the three hospital volume groups using descriptive statistics. RESULTS >African American patients were significantly greater portion of patients receiving care at low-volume hospitals, 15.1% versus 11.6% at high-volume hospital. Medicaid and self-pay patients were also overrepresented at low-volume centers, 6.7% and 3.9% versus 2.6% and 1.7% respectively at high-volume centers. In addition, Compared with Caucasian patients, African American patients had higher rates of post-operative infection (P = 0.0020) and post-operative bleeding (P = 0.0044). Compared with privately insured patients, Medicaid patients had a higher rate of post-operative bleeding (P = 0.0266) and in-hospital mortality (P = 0.0031). CONCLUSION Our results showed significant differences in racial distribution and primary payments methods between the low- and high-volume categories, and suggests that accessibility to care at high-volume centers remains problematic for these disadvantaged populations.

Challenges and Successes of Tidal Wetlands Restoration in Jamaica Bay, New York

2010 ◽  
Author(s):  
Roy C. Messaros ◽  
Patricia S. Rafferty ◽  
Gail S. Woolley
Keyword(s):  
New York ◽  
Tidal Wetlands ◽  
Jamaica Bay ◽  
Wetlands Restoration

scholarly journals Sediment starvation destroys New York City marshes’ resistance to sea level rise

2018 ◽  
Vol 115 (41) ◽  
pp. 10281-10286 ◽  
Author(s):  
Dorothy M. Peteet ◽  
Jonathan Nichols ◽  
Timothy Kenna ◽  
Clara Chang ◽  
James Browne ◽  
...  
Keyword(s):  
New York ◽  
New York City ◽  
Sea Level Rise ◽  
Sea Level ◽  
York City ◽  
Organic Sediment ◽  
Jamaica Bay ◽  
Structural Weakness ◽  
Global Sea Level ◽  
Matter Flux

New York City (NYC) is representative of many vulnerable coastal urban populations, infrastructures, and economies threatened by global sea level rise. The steady loss of marshes in NYC’s Jamaica Bay is typical of many urban estuaries worldwide. Essential to the restoration and preservation of these key wetlands is an understanding of their sedimentation. Here we present a reconstruction of the history of mineral and organic sediment fluxes in Jamaica Bay marshes over three centuries, using a combination of density measurements and a detailed accretion model. Accretion rate is calculated using historical land use and pollution markers, through a wide variety of sediment core analyses including geochemical, isotopic, and paleobotanical analyses. We find that, since 1800 CE, urban development dramatically reduced the input of marsh-stabilizing mineral sediment. However, as mineral flux decreased, organic matter flux increased. While this organic accumulation increase allowed vertical accumulation to outpace sea level, reduced mineral content causes structural weakness and edge failure. Marsh integrity now requires mineral sediment addition to both marshes and subsurface channels and borrow pits, a solution applicable to drowning estuaries worldwide. Integration of marsh mineral/organic accretion history with modeling provides parameters for marsh preservation at specific locales with sea level rise.

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