: Sources of Yoruba History . S. O. Biobaku.

History of Karate-dd O

O-14: Assisted Reproductive Technique History in Iran

Background Infertility is a major problem with a prevalence around 9% in the world and a life time prevalence of about 25% in Iran. Assisted reproductive technique (ART), came into the world on 1978 with the birth of Luise Brown, but early days of ART in Iran was not clear. The aim of this study is to investigate the history of ART in Iran and its time line in this Islamic society. MaterialsAnd...

Tracing sources of streamwater sulfate during snowmelt using S and O isotope ratios of sulfate and 35 S activity

The biogeochemical cycling of sulfur (S) was studied during the 2000 snowmelt at Sleepers River Research Watershed in northeastern Vermont, USA using a hydrochemical and multi-isotope approach. The snowpack and 10 streams of varying size and land use were sampled for analysis of anions, dissolved organic carbon (DOC), S activity, and dS and dO values of sulfate. At one of the streams, dO values...

The Sources of Kolmogorov ’ s

Andrei Kolmogorov’s Grundbegriffe der Wahrscheinlichkeitsrechnung put probability’s modern mathematical formalism in place. It also provided a philosophy of probability—an explanation of how the formalism can be connected to the world of experience. In this article, we examine the sources of these two aspects of the Grundbegriffe—the work of the earlier scholars whose ideas Kolmogorov synthesized.

Phosphorus-Sulfur Heterocycles Incorporating an O-P(S)-O or O-P(S)-S-S-P(S)-O Scaffold: One-Pot Synthesis and Crystal Structure Study.

A new one-pot preparative route was developed to synthesize novel organophosphorus-sulfur heterocycles via the reaction of the four-membered ring thionation reagent [2,4-diferrocenyl-1,3,2,4-diathiadiphosphetane 2,4-disulfide (FcLR, a ferrocene analogue of Lawesson's reagent)] and alkenyl/aryl-diols and I₂ (or SOCl₂) in the presence of triethylamine. Therefore, a series of five- to ten-membered...