Polyploid plantlets, including triploid, tetraploid, and mixoploid, were induced from the European pear (Pyrus communis L.) cultivar ‘Fertility’ by in vitro colchicine treatment of leaf explants. The leaf explants were incubated in 0.4% (w/v) colchicine for 24, 48, or 72 h, then transferred to adventitious shoot-induction medium. Regenerated shoots were pre-selected according to their morpholog...

A transmission electron microscope method for gene mapping by in situ hybridization to Drosophila polytene chromosomes has been developed. As electron-opaque labels, we use colloidal gold spheres having a diameter of 25 nm. The spheres are coated with a layer of protein to which Escherichia coli single-stranded DNA is photochemically crosslinked. Poly(dT) tails are added to the 3' OH ends of th...

Thread-level speculation (TLS) is widely accepted to be a realistic model for execution of sequential programs on multi-core architectures. One problem with TLS occurs when large numbers of spawned threads are squashed due to data dependence violations. This can reduce or entirely obliterate the performance benefits of TLS. Until now, informal compiler heuristics or high-overhead runtime profil...

Mortalities of Penaeus vannamei, cultured in ponds in Belize, Central America, began during the last part of the grow-out cycle during the cold weather months from September 2004 through February 2005. Tissue squashes of infected hepatopancreata and histological examination of infected shrimp revealed that the mortalities might have been caused by an endoparasite. To confirm the diagnosis, DNA ...

The thread-level speculation paradigm parallelizes sequential applications at run-time, via optimistic execution of potentially independent threads. This enables unmodified sequential applications to exploit thread-level parallelism on modern multicore architectures. However a high frequency of data dependence violations between speculative threads can severely degrade the performance of thread...

Prunus nepalensis, locally known as sohiong is a fruit from the north-eastern region of India. It rich in several vitamins and minerals also storehouse essential bioactive compounds. consumed fresh or converted into jams, squashes, wines by local people. has immense potential to be processed value added products on commercial scale. both delicious nutritious. Sohiong β-carotene vitamin C. it co...

In population studies, adults are frequently difficult or inconvenient to identify for genotype, but a family profile of genotypes can be obtained from an unidentified female crossed with a single unidentified male. The problem is to estimate an allele frequency in the cryptic parental gene pool from the observed family profiles. For example, a worker may wish to estimate inversion frequencies ...

MicroScope and other similar microarchitectural replay attacks take advantage of the characteristics speculative execution to trap victim application in a loop, enabling attacker amplify side-channel attack by executing it indefinitely. Due nature replay, can be used effectively software that are shielded against even under conditions where would not possible (e.g., secure enclaves). At same ti...