Search

Mailing List

For all the latest news and features, sign up to receive our FREE updates by email:


Now available on Fast Track: Oganesson: a most unusual ‘inert gas’

Posted on 18. May, 2018.

Oganesson, with the symbol Og, is the artificially prepared (i.e. ‘man-made’) elementwith atomic number 118, previously known as eka-radon or Uuo (‘ununoctium’), and recently ‘blessed’ with an official name by IUPAC3. Atoms of the element were first produced using the U400 cyclotron at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia, via a heavy-ion fusion reaction utilising collision of a 4820Ca beam with a 24998Cf target. 


Read more
Variation in seroprevalence of antibodies against Mycoplasma gallisepticum and Avipoxvirus in nine species of birds with differential access to feeders

Posted on 9. March, 2018.

Congregation of individuals at high densities is known to increase disease transmission and bird-feeding activities are specifically aimed at attracting many birds to a single location. Studies have shown that implementing bird feeders increases the likelihood of host infection to Mycoplasma gallisepticum, a causative agent of conjunctivitis in birds.


Read more
Contents: Journal of Chemical Research , Volume 42, Issue No.2 February 2018

Posted on 8. March, 2018.

The Journal of Chemical Research is a monthly journal which has a broad international authorship and publishes research papers and reviews in all branches of experimental chemistry. Established in 1977 as a joint venture by the British, French and German chemical societies it maintains the high standards set by the founding societies.


Read more
Mathematical models of microbial growth and metabolism: a whole-organism perspective

Posted on 7. March, 2018.

Life on Earth can be divided into several kingdoms, with the prokaryote domains of the Archaea and the Bacteria standing out by dint of their vast metabolic diversity and versatility which is belied by the paltry morphological variation encountered in these domains.


Read more
Free for 24 hours - The mechanism of the reaction of the Tollens reagent

Posted on 7. March, 2018.

The Tollens test for aldehydes has been used for over 100 years but no reason has been given for adding sodium hydroxide to the silver nitrate before the solution is cleared with ammonia. In this paper, a mechanism is proposed which explains why the addition of alkali makes the test much more sensitive.


Read more
A Free Review from Progress in Reaction Kinetics and Mechanism: Halocarbenes may deplete atmospheric ozone

Posted on 6. March, 2018.

The stratospheric ozone layer protects biological processes on Earth by absorbing the more harmful solar UV radiation. The discovery of the loss of stratospheric O3 led to investigations to find the cause. It was found that chlorofluorocarbons had long atmospheric lifetimes and could reach the stratosphere where they photocleaved to yield Cl atoms which destroyed O3 in a catalytic chain reaction.


Read more
A convenient synthesis of gimeracil

Posted on 6. March, 2018.

A practical three-step synthetic approach to gimeracil in a 68% overall yield is described, using 2,4-dimethoxypyridine as the starting material with 3,5-dichloro-2,4-dimethoxypyridine and 3,5-dichloro-2,4-dihydroxypyridine as intermediates. The advantages of this procedure include short reaction steps, simple operation and good yield.


Read more
Weather-dependent variation in the winter diet of urban roosting Long-eared Owls (Asio otus) in Pécs (Hungary)

Posted on 5. March, 2018.

Long-eared Owls usually winter in groups, mainly on evergreen trees in settlements, They hunt at night and rest in trees during the day. The indigestible parts of the prey (e.g. bones, hair, feathers and chitin) are regurgitated in the form of pellets, from which one can conclude the composition of their diet. 


Read more
Substitute group-tuned Schiff-base manganese(III)-based cyanide-bridged bimetallic complexes: synthesis, crystal structures and magnetic properties

Posted on 5. March, 2018.

The trinuclear cyanide-bridged heterometallic Pd(ii)–Mn(iii) complexes {[Mn(L1)(H2O)]2[Pd(CN)4]} and {[Mn(L2)(H2O)]2[Pd(CN)4]}·2H2O(L1 = N,N′-1,2-propylene-bis(3-methoxysalicylideneiminate; L2 = N,N′-1,2-propylene-bis(3-ethoxysalicylideneiminate) were obtained and structurally and magnetically characterised. X-ray diffraction revealed their cyanide-bridged trinuclear core nature with a conformational difference. The magnetic susceptibilities of the two complexes revealed overall weak antiferromagnetic interactions between the adjacent Mn(iii) ions.


Read more