This review presents examples from the chemical literature of syntheses of bridged-polycyclic products via C-H bond insertion by carbenes and nitrenes. Applications to natural product synthesis, a description of the essential elements in substrate-controlled reactions, and mechanistic details of transformations are presented. Overall, these transformations allow the construction of important ri...

Another critical need is the development of efficient techniques for the construction of large scale genetic circuits. Current molecular biology approaches provide efficient tools for the insertion and study of individual genes through the introduction of plasmids. However, the introduction of more than a few is rare, because the standard scientific questions do not require the assembly of larg...

Construction of the cell plate during plant cell division requires the precise insertion of materials around the circumferentially growing phragmoplast. New work shows that two kinesin-4 motor proteins act to shorten the domain of overlapping microtubules at the phragmoplast perimeter, limiting the site of material deposition.

We use Kashiwara’s theory of crystal bases to study the plactic monoid for Uq(sp2n). Then we describe the corresponding insertion and sliding algorithms. The sliding algorithm is essentially the symplectic Jeu de Taquin defined by Sheats and our construction gives the proof of its compatibility with plactic relations.

Biodiversity science investigates biological diversity on all levels and scales. There is strong evidence that biodiversity is declining at unprecedented rates and that this will have dire consequences for humankind. Consequently, there is a strong need for science to support political decision making in this area. Thus key questions of biodiversity science are: What is out there? Why is it the...

Executive Summary There’s a battle raging out there in the I.T. world about which backup solution is better – tape or disk? In this Whitepaper, we attempt to mediate the argument by presenting some simple facts about the real purpose of backups and the relative advantages of each medium in covering them... Indeed, once you’ve read this article, you may agree it might be time for a truce! Read o...

In ordinary representations of relations the order of the relata plays a structural role, but in the states of affairs or the facts themselves such an order often does not seem to be intrinsically present. An alternative way to represent relations makes use of positions for the arguments. This is no problem for the love relation, but for relations like the adjacency relation and cyclic relation...

Hello and welcome to the first edition of the bimonthly STIMulus Newsletter. STIM (Students for Technology In Medicine) is a new student interest group dedicated to all things tech in medicine. One of our primary goals is to educate ourselves and our peers about all the latest and greatest happenings in the world of medical bio-tech, and come together to discuss the incredible advances that are...

background and aims: nowadays miniscrews are widely used as skeletal anchorage in orthodontics. however the success rate of miniscrews is less than that of osseointegrated implants. the aim of this retrospective study was to evaluate factors influencing the success rate of orthodontic miniscrews. materials and methods: data of 244 miniscrews in 122 patients (99 females and 23 males, with a mean...

We consider two elementary forms of string rewriting called guided insertion/deletion and guided rewriting. The original strings are modified depending on the match with a given set of auxiliary strings, called guides. Guided insertion/deletion considers matching of a string and a guide with respect to a specific correspondence of strings. Guided rewriting considers matching of a string and a g...