RNA is of course a macromolecule that both carries information and mediates function. Indeed, this statement sort of defines the first two of what I consider to be three eras of RNA research. The Central Dogma more or less defines the first era, where the basic principles of molecular biology make RNA the messenger for how DNA talks to proteins. That said, even back then Crick and Orgel recogni...

The diagnosis of the problem of the contemporary world in the area of global media communication is a basic challenge for existing and modernised educational systems. Without a complete vision of the world, people cannot exist in a fully aware way. Hence, the most important questions related to such social development in which no one would be excluded from the world-wide circulation of informat...

Sex-sorted semen can increase the profitability of dairy cattle by producing offspring of the desired sex. The objective of the present study was to compare conception rate, stillbirth, calving difficulty and sex ratios from sexed and conventional semen in a commercial dairy herd in Isfahan province, Iran. Data were collected from April 2009 until December 2015 on 13,343 inseminations in 8,011 ...

The purpose of this study was to determine the relationships between conception rate and other parameters before estrus synchronization with a Controlled Internal Drug Release Device (CIDR) and estradiol benzoate (EB). In the estrus synchronization program, animals were injected with 2 mg EB and then received a CIDR. Seven days later, the CIDR was removed and the animals were given an injection...

This book presents summaries by specialists of subjects related directly or indirectly to conception. The first five papers deal with male and female germ cells-their production, protection, release, and early transport. Chapters follow on fertilization, transportation of the zygote, and implantation. Finally there is consideration of immunological phenomena relating to fertility and fertility ...

Philosophers have often misunderstood Kierkegaard’s views on the nature and purposes of God due to a fascination with his earlier, pseudonymous works. We examine many of Kierkegaard’s later works with the aim of setting forth an accurate view on this matter. The portrait of God that emerges is a personal and fiercely loving God with whom humans can and should enter into relationship. Far from a...

Prior to 1938 no form of oral hormonal contraception was possible as none of the then availablehormones were active when given orally. The era of oral contraception commenced withthe reports of Pincus et al (3). The contraceptive pills used today contain a synthetic oestrogenand a synthetic progestational agent. Oestrone and oestradiol were available prior to 1938as esters but these were active...

In its widest scope, Tarski thought the aims of logic should be the creation of “a unified conceptual apparatus which would supply a common basis for the whole of human knowledge.” Those were his very words in the Preface to the first English edition of the Introduction to Logic (1940). Toward that grand end, in the post-war years when the institutional and financial resources became available,...