منابع مشابه
Amended Snags article
1 The unusual behavior during purification of four affinity-tagged proteins—a MAP kinase, a transcription factor, intracellular binding protein, and a receptor tyrosine kinase—led the authors to devise alternate methods of obtaining their end-product. They found it necessary to either remove the affinity tag (by recloning or by cleavage of the tag) or omit the traditional immobilized metal ion ...
متن کاملA fews snags in mesh adaptation loops
The first stage in an adaptive finite element scheme (cf. [CAS95, bor1]) consists in creating an initial mesh of a given domain Ω, which is used to perform an initial computation (for example a flow solver). A size specification field is deduced (e.g. at the vicinity of each mesh vertex, the desired mesh size is specified), based on the numerical results. If the mesh does not satisfy the size s...
متن کاملDecay of Fire-caused Snags in Ocala San Ine
Sand pine (I-‘inu.r c/trrr.srr) scrub is adapted to, and regenerated by, periodic stantl-rcplnccment wildfire, which consumch the understory and kills the overstay. The heat of the fire opens the serotinous cones of’ Ocala sand pine (P. c~/nu.srr var. c/tr~c.sc/), releasing quantities of seed that reestablish the overstory, while the understory regenerates by sproutin, (1 or from soil-stored se...
متن کاملFire as a Coarse Filter for Snags and Logs
Fire played an important role in maintaining and creating conditions suitable for native flora and fauna in the forests of western North America. Recent coarse filter conservation strategies have advocated creating future landscapes that incorporate historic or natural ranges of variability, including fire regimes. Historic fire regimes were variable across the West, and created quite unique co...
متن کاملPersistence of Pinyon Pine Snags and Logs in Southwestern Colorado
We examined the persistence of pinyon pine (Pinus edulis Engelm.) standing snags and downed logs in southwestern Colorado pinyon-juniper woodlands. The time since death of pinyon pines killed by bark beetles, black stain root disease, or unknown causes in three study areas in southwestern Colorado was determined through monitoring of permanent plots and dendrochronological crossdating methods. ...
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ژورنال
عنوان ژورنال: Nature
سال: 1967
ISSN: 0028-0836,1476-4687
DOI: 10.1038/216524c0