objective(s) as an important class of natural products, coumarins exhibit many biological activities and the diversity of their bioactivity is so huge that the pharmacological promiscuity has been applied on their case. oxypeucedanine also named as prangolarin is a linear furanocoumarin with an oxygenated prenylated substitution at c-5 of the nucleus. to our knowledge, there are few reports on ...

We prove that the set of DES permutations (encryption and decryption for each DES key) is not closed under functional composition. This implies that, in general, multiple DES-encryption is not equivalent to single DES-encryption, and that DES is not susceptible to a particular known-plaintext attack which requires, on average, 228 steps. We also show that the size of the subgroup generated by t...

As noted below, most researchers agree that young babies should sleep in the same room where their parents sleep. The point of disagreement is whether parents should be advised against sharing their beds. Some researchers think that the safest arrangement involves cosleeping without sharing the same bed—-i.e., placing a young infant in a crib or “side car” that is within arm’s reach of his parent.

......................................................................................................... 4 1. BACKGROUND .................................................................................................. 8 2. TERMS OF REFERENCE ...................................................................................... 9 3. GUIDANCE ON SAFETY EVALUATION OF NANOMATERIALS USED IN MEDIC...

BACKGROUND Rapid reviews expedite the knowledge synthesis process with the goal of providing timely information to healthcare decision-makers who want to use evidence-informed policy and practice approaches. A range of opinions and viewpoints on rapid reviews is thought to exist; however, no research to date has formally captured these views. This paper aims to explore evidence producer and kno...

Long-term outcome studies are frequently hindered by a decreasing frequency of patient follow-up with the treating surgeon over time. Whether this attrition represents a "loss of faith" in their index surgeon or the realities of a geographically mobile society has never been assessed in a population of patients undergoing spinal surgery. The purpose of this article is to determine the frequency...

Cribbage is (normally) a two-player card game where the aim is to score 121 points before your opponent. The game has four stages, one of which involves discarding two cards from the six cards you are dealt. A later stage scores the four cards in your hand together with a card cut randomly from the deck after the discards have been made. The two cards that were discarded are used to form anothe...

Opinion mining refers to the use of natural language processing, text analysis and computational linguistics to identify and extract subjective information in textual material. Opinion mining, also known as sentiment analysis, has received a lot of attention in recent times, as it provides a number of tools to analyse the public opinion on a number of different topics. Comparative opinion minin...

The most recent results and some of the open key questions on the evolution of early-type galaxies are reviewed in the general cosmological context of massive galaxy formation.