Oesophageal tissue engineering is a therapeutic alternative when oesophageal replacement is required. Decellularised scaffolds are ideal as they are derived from tissue-specific extracellular matrix and are non-immunogenic. However, appropriate preservation may significantly affect scaffold behaviour. Here we aim to prove that an effective method for short- and long-term preservation can be app...

Insects often used as accumulation indicators of hazardous elements. Pitfall traps with ethylene glycol as trapping fluid are frequently used to collect insects. We studied the effect of glycol and preservation with ethanol on the elemental composition of hand collected firebugs. Control samples were stored in a freezer and the following treatments were used: insect kept in trapping fluid for 2...

As part of its ongoing work in biomonitoring, Environment Canada’s Canadian Aquatic Biomonitoring Network (CABIN) program has assembled an expert-verified reference collection of 3864 specimens of 604 species of Canadian freshwater macroinvertebrates. Such collections are a key resource for developing a deoxyribonucleic acid (DNA) barcode library to facilitate molecular identification of biomon...

We (i.e. I) present a simplified version of Shelah’s “preserving a little implies preserving much”: If I is the ideal generated by a Suslin ccc forcing (e.g. Lesbeque– null or meager), and P is a Suslin forcing, and P is I–preserving (i.e. it doesn’t make any positive Borel–set small), then P preserves generics over candidates and therefore is strongly I–preserving (i.e. doesn’t make any positi...

We (i.e. I) present a simplified version of Shelah’s “preserving a little implies preserving much”: If I is the ideal generated by a Suslin ccc forcing (e.g. Lebesque– null or meager), and P is a Suslin forcing, and P is I–preserving (i.e. it doesn’t make any positive Borel–set small), then P preserves generics over candidates and therefore is strongly I–preserving (i.e. doesn’t make any positi...

The preservation of digital publications involves various technical, legal, economic and organization issues. Copyright law and licensing arrangements may prevent problems for libraries that wish to preserve digital resources in the long-term or even short term. Digital preservation strategies involve copying and it is not clear with copyright legislation in the UK and Europe will allow the sor...