General analysis of correlation between main areas of malignant tumor and environmental pollution

Author(s):  
Li Haiping ◽  
Luo Jiyu
Author(s):  
Chu Thi Mai Phuong ◽  
Nguyen Thi Huong ◽  
Tu Thuy Anh

Abstract: In the current trend, human activities of production and activities have discharged a large amount of waste. This makes the pressure to handle environmental pollution increasing. Therefore, environmental services have become an important economic sub-sector of many countries including Vietnam. In Vietnam, as of 2017, have 3,769 enterprises operate in the field of environmental services. Of which, more than 80% are non-state enterprises, about 1% are FDI enterprises and the rest are state-owned enterprises. Enterprises mainly focus on services with high demand resulting from the requirements of the 2005 Law on Environmental Protection, such as designing, manufacturing, and building waste treatment systems; environmental monitoring and analysis; consulting, training, providing environmental information. This paper provides a general analysis of businesses operating in the environmental services industry, the situation of attracting FDI into the industry, pointing out the causes and shortcomings in the development of the industry and giving some discussions and recommendations for developing environmental services in Vietnam Keywords: Environmental services, FDI, Vietnam.


Author(s):  
S. K. Peng ◽  
M.A. Egy ◽  
J. K. Singh ◽  
M.B. Bishop

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.


Author(s):  
H. J. Finol ◽  
M. E. Correa ◽  
L.A. Sosa ◽  
A. Márquez ◽  
N.L. Díaz

In classical oncological literature two mechanisms for tissue aggression in patients with cancer have been described. The first is the progressive invasion, infiltration and destruction of tissues surrounding primary malignant tumor or their metastases; the other includes alterations produced in remote sites that are not directly affected by any focus of disease, the so called paraneoplastic phenomenon. The non-invaded tissue which surrounds a primary malignant tumor or its metastases has been usually considered a normal tissue . In this work we describe the ultrastructural changes observed in hepatocytes located next to metastases from diverse malignant tumors.Hepatic biopsies were obtained surgically in patients with different malignant tumors which metatastized in liver. Biopsies included tumor mass, the zone of macroscopic contact between the tumor and the surrounding tissue, and the tissue adjacent to the tumor but outside the macroscopic area of infiltration. The patients (n = 5), 36–75 years old, presented different tumors including rhabdomyosarcoma, leiomyosarcoma, pancreas carcinoma, biliar duct carcinoma and colon carcinoma. Tissue samples were processed with routine techniques for transmission electron microscopy and observed in a Hitachi H-500 electron microscope.


1974 ◽  
Vol 19 (7) ◽  
pp. 568-568
Author(s):  
GEORGE W. ALBEE

Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.


1979 ◽  
Vol 15 (1) ◽  
pp. 254
Author(s):  
KW Kim ◽  
DH Lee ◽  
CY Park

2002 ◽  
Vol 47 (4) ◽  
pp. 423
Author(s):  
Soo Hyun Kim ◽  
Soo Young Chung ◽  
Sung Hwan Hong ◽  
Sang June Shin ◽  
Kyung Won Lee ◽  
...  

2001 ◽  
Vol 45 (4) ◽  
pp. 393 ◽  
Author(s):  
Yu Ri Kahng ◽  
Jeong Kon Kim ◽  
Kyoung Sik Cho

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