New, disease resistant trees are bringing back the splendor of what has been called one of the prettiest towns in New England.
You'll find the Guardian men noble but sometimes resistant to what's good for them.
Rivers of James Island, South Carolina, has resulted in the production of disease-resistant races.
- The method employed is to select, for seed purposes, plants which are resistant to the particular disease.
The substance is very resistant to the action of chemical reagents, to digestion, and possibly belongs to the glyco-proteids.
This lowland area, due to the non-resistant character of the strata,.
Cholera and typhoid organisms are less resistant, and are killed more quickly than tubercle bacilli at the above temperatures.
They are the most resistant to unfavourable conditions of environment, and are able, by a process of parthenogenesis, to give rise to ordinary, indifferent forms again, which can repopulate the gnat.
The height and massiveness of the mountains decrease to the south-west, where the piedmont belt sweeps westward around them in western Georgia and eastern Alabama Some of the residual mountains hereabouts are reduced to a mere skeleton or framework by the retrogressive penetration of widening valleys between wasting spurs; the very type of vanishing forms, Certain districts within the mountains, apparently consisting of less resistant crystalline rocks, have been reduced to basin-like peneplains in the same time that served only to grade the slopes and subdue the summits of the neighboring mountains of more resistant rocks; the best example of this kind is the Asheville peneplain in North Carolina, measuring about 40 by 20 m.
The exposed strata are in large part resistant sandstones.
When the two lowlands are traced eastward they become confluent after the Niagara limestone has faded away in central New York, and the single lowland is continued under the name of Mohawk Valley, an east-west longitudinal depression that has been eroded on a belt of relatively weak strata between the resistant crystalline rocks of the Adirondacks on the north and the northern escarpment of the Appalachian plateau (Catskills-Helderbergs) on the south; forming a pathway of great historic and economic importance between the Atlantic seaports and the interior.
The belts of non-resistant rock have been worn away, leaving longitudinal valleys separated by hard rock ridges.
Calmette and Fraser found that when small doses of snake venom, insufficient to cause death, are injected into an animal, temporary disturbance is produced; but after a few days the animal recovers, and a larger dose is then required to produce any symptoms. By gradually increasing the dose the animal becomes more and more resistant, until at last a dose fifty times as great as that which would at first have produced immediate death can be injected without doing the animal any harm.
Owing to greater care on the part of growers, and the introduction of FrenchAmerican resistant stocks to replace vines attacked by the phylloxera, the wines in the early years of the 10th century again acquired a limited sale in England.
In 1953, he developed a method to make strains of wheat highly resistant to a single form of rust.
And although rust was highly adaptive, by making ten or so different wheat varieties resistant to different forms of rust, Borlaug helped farmers reduce the risk of crop loss to a minimum.