A conditional knockout-rescue system was developed to construct an in-frame deletion strain of Escherichia coli essential genes.The target was flanked with marker genes and FRT (FLP recognition target) sites, and ORG CORNSTARCH a plasmid containing arabinose-induced FLP recombinase was transformed.After arabinose induction, cells could survive only
A new species of the Neoperla clymene group (Plecoptera, Perlidae), N.chebalinga sp.n.from Guangdong Province of southern China is described, illustrated, and compared with Food Feeder Tray related taxa.The new species is characterized by the slender aedeagal tube, strongly sclerotized dorsally, and weakly sclerotized ventrally with an upcurved, CH
The family Nosodendridae is a small group of tree sap beetles with only 91 described species representing three genera Vacuum Filter Frame from the world.In 1930s, bacteria-harboring symbiotic organs, called bacteriomes, were briefly described in a European species Nosodendron fasciculare.Since then, however, no studies have been conducted on the n
Introduction: Universities play a key role in creating a knowledge-based society and its sustainable development.Strategic planning by strategically analyses internal and external environments of the organization, forecast its future, identifying its strategic direction, and strengthening organizational structures, processes, and outcomes, creates
The paths opened by technology have brought the possibility of exploring new scales and inaugurated a new way of understanding Nature from the Nanotechnology.Developed through an ultrasophisticated technoscientific apparatus, it makes the reflection about its Bronc Halter infinite reaches and risks be driven by the uncertainty of the scientific mod