Shoot tips of cassava (Manihot esculenta Crantz) in vitro plantlets were successfully cryopreserved using the encapsulation-vitrification technique. Nodal cuttings of 5 mm length with one leaf were cultured on modified MS medium in Petri dishes (90 mm x 20 mm) for about 28 days. Excised shoot tips were precultured on sucrose enriched (0.3 M) medium for 16 h, encapsulated and osmoprotected with ...

This special issue ‘Statistical learning methods including dimensionality reduction’ is concerned with situations where the main statistical problem of interest, for example regression, discrimination (supervised classification), and clustering (unsupervised classification), is to be combined with dimension reduction methods. The general objective of this special issue is to collect and present...

The notion of comparatively positioning objects with respect to each other is commonly called ranking. With respect to databases, the ranking issue is closely associated with data retrieval. Yu, Hwang, and Chang (2007) highlight that with the myriad of databases situated online, retrieving relevant data is problematic; in reality it becomes an online ranking problem (Chaudhuri, Das, Hristidis, ...

purpose: mesh technique is the standard for inguinal hernia repair because of less recurrence,   but it is inferior or equal to sutured technique in case of other post-operative complications   such as chronic pain. this clinical trial set out to compare these two techniques.   materials and methods: a total number of 322 cases of unilateral inguinal hernia in participants   older than 18 years...

Cryopreservation has been proven to be an effective technology for the cost-effective, longterm preservation of genetic material. A wide range of plant material including cultured cells, tissues, embryos, meristems, pollen and seeds can be effectively preserved for extended periods of time and, when thawed, can be used to rapidly produce stock plants, with good preservation of genetic and physi...