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Some Spectroscopic Problems In Practical Organic Chemistry

Posted on 1. February, 2017.

Now available: A new book of organic chemistry experiments by Prof Jim Hanson


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Free from the Archives - Artificial transmembrane channels for sodium and potassium

Posted on 5. June, 2014.

Transport of alkali metals, particularly sodium and potassium, across cell membranes is an essential function performed by special proteins that enable cells to regulate inter- and extracellular ion concentrations with exceptional selectivity. The importance of these channel-forming proteins has led to researchers emulating of their structural features: an ion-specific filter and conduction at rates up to 108 ions per second. 


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The evolutionary ecology of nest construction: insight from recent fish studies

Posted on 9. May, 2014.

Nests are built by a wide variety of animals as functional receptacles for developing eggs and offspring, and they play a critical role in the reproductive biology of many species. Traditionally, research on the ecology and evolution of nest building and construction behaviour has focused primarily on birds, and avian studies have dominated the literature. However, as researchers working on non-bird models have realised the importance of nest construction in evolutionary ecology, the number of studies published on the nesting behaviour of nonbird taxa has increased.


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Free to read: Avian Models for Research in Toxicology and Endocrine Disruption

Posted on 16. April, 2014.

In the 1960s, populations of wild birds showed dramatic declines. This, in association with environmental pollution, led to long-range interests in avian toxicology and more recently to investigating chemical pollutants that may cause endocrine disruption in avian species.


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Free to read: Water or ice? – the challenge for invertebrate cold survival

Posted on 16. April, 2014.

Some insects freeze, others do not. Some insects die when frozen, others do not. This encapsulates the problem facing insects and other invertebrates living in cold environments in which there is a potential to freeze. Nature has chosen not to solve the problem in a single or simple way – a wide variety of adaptations has evolved to cope with cold stress in many different environments.


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On the chemistry of inorganic free radicals in cloud water.

Posted on 27. March, 2014.

Cloud water droplets are formed by the condensation of water on to aerosol particles, known as cloud condensation nuclei, which occurs when the relative humidity in an ascending mass of air exceeds the saturation level due to adiabatic cooling. The chemical composition of cloud droplets has been the subject of several field studies in which rainwater is collected and analysed [1,2].


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From the Science Reviews archive: UV radiation-induced enterobacterial responses, other processes that influence UV tolerance and likely environmental significance

Posted on 25. March, 2014.

The ability of enterobacteria to become UV-tolerant is important because such tolerance may enable organisms to resist irradiation in the environment, in water treatment, in shell-fish, in stages of food processing, and at locations in the domestic, commercial and hospital environment. 


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From the Science Reviews archive: Effect of HCl addition and temperature on the hetrogeneous chemistry and photochemistry of ClONO2 adsorbed on ice crystals.

Posted on 24. March, 2014.

The depletion of ozone over the Antarctic stratosphere, particularly in the beginning of springtime, has been the subject of a great deal of attention during the last decade. This phenomenon has been also recently observed in the Arctic stratosphere especially during the unusually cold 1995-96 winter.


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Impact of Egg Storage on Embryo Development

Posted on 20. March, 2014.

Prolonged cool egg storage, a common commercial practice with turkey eggs in the USA, has a detrimental effect on hatchability and therefore, is of considerable concern to commercial turkey hatchery operators. In fact, a rule-of-thumb in the hatchery is that for every day after 10-days of storage, hatchability will decrease by 1%.


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