USE OF STONE'S METHOD IN STUDIES OF DISEASE RISK AROUND POINT SOURCES OF ENVIRONMENTAL POLLUTION

1996 ◽  
Vol 15 (18) ◽  
pp. 1927-1934 ◽  
Author(s):  
GAVIN SHADDICK ◽  
PAUL ELLIOTT
Keyword(s):  
Environmental Pollution ◽  
Disease Risk ◽  
Point Sources

scholarly journals Variability of Platanus orientalis leaves under a heterogeneous environment in the Hissar Valley of Tajikistan

2020 ◽  
Vol 24 ◽  
pp. 00018
Author(s):  
Saifiddin Davlatzoda ◽  
Jamoliddin Bobokalonov ◽  
Elena Baikova
Keyword(s):  
Environmental Pollution ◽  
Leaf Blade ◽  
Diagnostic Value ◽  
Point Sources ◽  
Middle Level ◽  
Heterogeneous Environment ◽  
Local Populations ◽  
Platanus Orientalis ◽  
Cement Factories

Geospatial monitoring of leaves variability has been performed for Platanus orientalis L. (Platanaceae) in Hissar Valley of Tajikistan. 17 local populations were clustered in four territorial groups and investigated by 11 morphometric variables and four indices. Six levels of variability were taken in the classification of S.A. Mamaev. All tested parameters were ranked due to the total score of variability levels. It was established, that indicators which have the combination of high, increased, and medium levels of variability, can be recommended for the purpose of geospatial monitoring. In the studied set of variables are two such ones: (1) the ratio of the length of leaf blade to the lengh of petiole, and (2) the petiole lengh. These two indicators reliably respond to point sources of industrial environmental pollution (Aluminum and Cement factories). Six indicators with domination of the middle level of variability, are of diagnostic value to differ loci inside territorial groups of populations. The results of the experiment confirmed, that set of variability levels for 8 of 15 studied parameters has diagnostic matter for geospatial monitoring of environment conditions in Hissar Valley of Tajikistan.

Regression Modelling of Disease Risk in Relation to Point Sources

1997 ◽  
Vol 160 (3) ◽  
pp. 491-505 ◽  
Author(s):  
Peter Diggle ◽  
Sara Morris ◽  
Paul Elliott ◽  
Gavin Shaddick
Keyword(s):  
Disease Risk ◽  
Point Sources ◽  
Regression Modelling

scholarly journals Regression Modelling of Disease Risk in Relation to Point Sources

1997 ◽  
Vol 160 (3) ◽  
pp. 491-505 ◽  
Author(s):  
Peter Diggle ◽  
Sara Morris ◽  
Paul Elliott ◽  
Gavin Shaddick
Keyword(s):  
Disease Risk ◽  
Point Sources ◽  
Regression Modelling

Identification of Pulmonary Deposits from a Sandpaper Worker: A Study by Electron Microscopy and X-Ray Microanalysis

1982 ◽  
Vol 40 ◽  
pp. 52-53
Author(s):  
S. K. Peng ◽  
M.A. Egy ◽  
J. K. Singh ◽  
M.B. Bishop
Keyword(s):  
Electron Microscopy ◽  
Environmental Pollution ◽  
Rare Case ◽  
Interstitial Fibrosis ◽  
X Ray ◽  
Documented Case ◽  
Etiologic Agents ◽  
Pulmonary Interstitial Fibrosis ◽  
Gold Miners ◽  
Pulmonary Changes

Electron microscopy and energy dispersive x-ray microanalysis (EDXA) are found to be very useful tools for identification of etiologic agents in pneumoconiosis or interstitial pulmonary disorders. Pulmonary interstitial fibrosis and granulomatosis are frequently associated with occupational and environmental pollution. Numerous reports of pneumoconiosis in various occupations such as coal and gold miners are presented in the literature. However, there is no known documented case of pulmonary changes in workers in the sandpaper industry. This study reports a rare case of pulmonary granulomatosis containing deposits from abrasives of sandpaper diagnosed by using EDXA.

Resistance Monitor and Control for Vacuum Evaporation of Metals and Carbon

1976 ◽  
Vol 34 ◽  
pp. 572-573
Author(s):  
Russell L. Steere ◽  
Eric F. Erbe ◽  
J. Michael Moseley
Keyword(s):  
Electronic Device ◽  
Point Sources ◽  
High Contrast ◽  
Variable Resistor ◽  
Quality Of Results ◽  
Low Contrast ◽  
Evaporation Source ◽  
And Control ◽  
At Will

We have designed and built an electronic device which compares the resistance of a defined area of vacuum evaporated material with a variable resistor. When the two resistances are matched, the device automatically disconnects the primary side of the substrate transformer and stops further evaporation.This approach to controlled evaporation in conjunction with the modified guns and evaporation source permits reliably reproducible multiple Pt shadow films from a single Pt wrapped carbon point source. The reproducibility from consecutive C point sources is also reliable. Furthermore, the device we have developed permits us to select a predetermined resistance so that low contrast high-resolution shadows, heavy high contrast shadows, or any grade in between can be selected at will. The reproducibility and quality of results are demonstrated in Figures 1-4 which represent evaporations at various settings of the variable resistor.

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