Introduction Conclusions References

An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from historical hand-made mechanical instruments to high-precision electronic devices. Modern electrometers based on vacuum tube or solid state technology can be used to make voltage and charge measurements with very low leakage currents, down to ...

Lord Rayleigh’s investigations into the performance of optical systems led to the classic resolution formula based upon the complete separation of two Airy discs.1 This was refined shortly afterwards by the observational empirical law formulated by the Rev. William Rutter Dawes of Ormskirk.2 Both firmly established that the resolving power of a diffraction limited telescope was solely dependent...

background and aims. a plethora of definitions has been used for periodontitis for epidemiological studies. the aim of this cross-sectional study was to assess the impact of different case definitions on the prevalence of periodontitis and to find the level of agreement among them. materials and methods. periodontal records of 300 subjects were randomly selected from the database of oral health ...

A new definition of boundedness of linear order-homomorphisms (LOH)in $L$-topological vector spaces is proposed. The new definition iscompared with the previous one given by Fang [The continuity offuzzy linear order-homomorphism, J. Fuzzy Math. 5 (4) (1997)829$-$838]. In addition, the relationship between boundedness andcontinuity of LOHs is discussed. Finally, a new uniform boundednessprincipl...

acute respiratory distress syndrome (ards) is a complex disorder of heterogeneous etiologies characterized by a consistent, recognizable pattern of lung injury and a potentially devastating form of acute inflammatory lung injury with a high short-term mortality rate and significant long-term consequences among survivors. recently, the new definition of ards has been published, and this definiti...

pseudoparasitus talebii nemati, malekshah-koohi & afshari n. sp. is described and illustrated based on female specimens collected from soil in golestan province, gorgan region, iran. the definition of pseudoparasitus oudemans is revised and new definition is presented.

The vast diversity of the proposed definitions of parody, both before and after the twentieth century, can be an emblem of the lack of a thorough agreement amongst the literary critics about the definition of this literary technique (genre?!). While there is not a comprehensive all-accepted definition of parody, modern and postmodern literatures both exhibit a wide application of it. After look...

ion. For Perelman, a definition should always be regarded as an argument, and should be evaluated as an argument. A definition should not be categorized as either purely arbitrary or as purely descriptive accounts of fixed meanings. The approach to definitions taken in the new dialectic is directly at odds with these popular views. In the new dialectic, argumentation is always evaluated as used...