منابع مشابه
Henry Bunting 1911-1954
It is presumptuous for any one person to claim to know another. It is especially so for me to claim to have known, in any total sense of the word, Henry Bunting. For, as I look around this assembly of friends or recall the variety of those who have spoken to me about him during the last few days, I realize how deep, yet how widely-ranging, was his power of friendship. I grew up with him, amid t...
متن کاملOn some Crystals of "Lapis Lazuli"
Due to its unique blue colour, lapis lazuli is used as an ornamental stone. Recently we obtained some dark blue 8 to 12 mm sized dodecahedral crystal from Afghanistan. Similar crystals have been described as crystals of lazurite [1]. The present investigation has been carried out in order to find the nature of these crystals. The colour of massive lapis lazuli is caused by lazurite and hauyne [...
متن کاملJoint PP-PS inversion at Pikes Peak oilfield, Saskatchewan
The method of simultaneous PP-PS inversion has recently been developed and tested on the 3-D Blackfoot seismic data set. This paper shows the application of this method on 3C-2D seismic data from Pikes Peak oilfield. The inversion was accomplished with a newly installed inversion module in ProMAX. After careful prestack processing, five limitedoffset stacked sections for each of the vertical an...
متن کاملYet another look at Harris’ ergodic theorem for Markov chains
The aim of this note is to present an elementary proof of a variation of Harris’ ergodic theorem of Markov chains. This theorem, dating back to the fifties [Har56] essentially states that a Markov chain is uniquely ergodic if it admits a “small” set (in a technical sense to be made precise below) which is visited infinitely often. This gives an extension of the ideas of Doeblin to the unbounded...
متن کاملReform, regulation, and pharmaceuticals--the Kefauver-Harris Amendments at 50.
F years ago this month, President John F. Kennedy signed into law the Kefauver– Harris Amendments to the Federal Food, Drug, and Cosmetic Act (see photo). With the stroke of a pen, a threadbare Food and Drug Administration (FDA) was given the authority to require proof of efficacy (rather than just safety) before approving a new drug — a move that laid the groundwork for the phased system of cl...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1970
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay4268