Camels in the Patriarchal Narratives and Israel’s Early History

2021 ◽  
pp. 193-258
Author(s):  
Robert M. Fisher

By 1940, a half dozen or so commercial or home-built transmission electron microscopes were in use for studies of the ultrastructure of matter. These operated at 30-60 kV and most pioneering microscopists were preoccupied with their search for electron transparent substrates to support dispersions of particulates or bacteria for TEM examination and did not contemplate studies of bulk materials. Metallurgist H. Mahl and other physical scientists, accustomed to examining etched, deformed or machined specimens by reflected light in the optical microscope, were also highly motivated to capitalize on the superior resolution of the electron microscope. Mahl originated several methods of preparing thin oxide or lacquer impressions of surfaces that were transparent in his 50 kV TEM. The utility of replication was recognized immediately and many variations on the theme, including two-step negative-positive replicas, soon appeared. Intense development of replica techniques slowed after 1955 but important advances still occur. The availability of 100 kV instruments, advent of thin film methods for metals and ceramics and microtoming of thin sections for biological specimens largely eliminated any need to resort to replicas.


1979 ◽  
Vol 115 (11) ◽  
pp. 1317-1319 ◽  
Author(s):  
J. E. Morgan

2015 ◽  
Author(s):  
Alexander Henry ◽  
David Thompson
Keyword(s):  

Author(s):  
Fiona Sampson

Today, poetry and art music occupy similar cultural positions: each has a tendency to be regarded as problematic, ‘difficult’, and therefore ‘elitist’. Despite this, the audiences and numbers of participants for each are substantial: yet they tend not to overlap. This is odd, because the forms share early history in song and saga, and have some striking similarities, often summed up in the word ‘lyric’? These similarities include much that is most significant to the experience of each, and so of most interest to practitioners and audiences. They encompass, at the very least: the way each art-form is aural, and takes place in time; a shared reliance on temporal, rather than spatial, forms; an engagement with sensory experience and pleasure; availability for both shared public performance and private reading, sight-reading, and hearing in memory; and scope for non-denotative meaning. In other words, looking at these elements in music is a way to look at them in poetry, and vice versa. This is a study of these two formal craft traditions that is concerned with the similarities in their roles, structures, projects, and capacities.


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