CHEMICAL TOXICITY. HOW STUDENTS CAN FIND RELIABLE DATA IN TOXICOLOGICAL DATA BASES

2016 ◽  
Author(s):  
Carlos-Antonio Rius-Alonso ◽  
Yolanda González-Quezada
Keyword(s):  
Reliable Data ◽  
Chemical Toxicity ◽  
Data Bases ◽  
Toxicological Data

Use of backscattered electron image intensity signals to calculate the water/cement ratio of concrete

1992 ◽  
Vol 50 (1) ◽  
pp. 356-357
Author(s):  
R. J. Lee ◽  
A. J. Schwoeble ◽  
Yuan Jie
Keyword(s):  
Reliable Data ◽  
X Ray ◽  
Rapid Measurement ◽  
Trained Personnel ◽  
Electron Image ◽  
Backscattered Electron ◽  
Production Period ◽  
Strength And Durability ◽  
Automated Procedures ◽  
Standard Density

Water/Cement (W/C) ratio is a very important parameter affecting the strength and durability of concrete. At the present time, there are no ASTM methods for determining W/C ratio of concrete structures after the production period. Existing techniques involving thin section standard density comparative associations using light optical microscopy and rely on visual comparisons using standards and require highly trained personnel to produce reliable data. This has led to the exploration of other methods utilizing automated procedures which can offer a precise and rapid measurement of W/C ratio. This paper discusses methods of determining W/C ratio using a scanning electron microscope (SEM) backscattered electron image (BEI) intensity signal and x-ray computer tomography.

New and Improved Data Bases for Early Childhood Research

2008 ◽  
Author(s):  
Mary Bruce Webb ◽  
Alberto Sorongon ◽  
Anne Bloomenthal ◽  
Gail Mulligan
Keyword(s):  
Early Childhood ◽  
Data Bases ◽  
Early Childhood Research

Russia’s Market of Mergers and Acquisitions: Stages, Features and Prospects

2009 ◽  
pp. 23-45 ◽  
Author(s):  
A. Radygin
Keyword(s):  
Open Access ◽  
Mergers And Acquisitions ◽  
Corporate Control ◽  
Active Role ◽  
Data Bases ◽  
2008 Financial Crisis ◽  
Legal Norms ◽  
Role Of The State ◽  
Access Data

The article deals with key tendencies in the development of Russia’s market of mergers and acquisitions in the first decade of the 21st century. Quantitative parameters are analyzed by using available in the open access data bases for the years 2003-2008 taking into consideration new tendencies relating to 2008 financial crisis. An active role of the state played in the market of corporate control represents an important factor. Special attention is given to issues of development of Russia’s system of legal norms regulating the market of mergers and acquisitions.

TBE in Moldova

2019 ◽  
Author(s):  
Wilhelm Erber ◽  
Tamara Vuković Janković
Keyword(s):  
Reliable Data ◽  
Tick Borne Encephalitis ◽  
Tbe Virus

Although there are no reliable data on the number of tick-borne encephalitis (TBE) cases or the percentage of infected ticks, based on the geography and the presence of TBE virus (TBEV) in all neighboring countries, it must be assumed that TBEV is present anywhere in Moldova.

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