نتایج جستجو برای: culture disintegration

تعداد نتایج: 289678  

2006
John M. Gowdy

Economies entirely dependent upon local environmental resources should have a greater incentive to preserve those resources than economies based on specialization and trade. Evidence from history and prehistory, however, shows that many regionally based economies have collapsed because of environmental overexploitation. Evidence from the past shows that there is a strong connection between envi...

Journal: :Reviews of Modern Physics 1954

2010
Katja Schmid Raimar Löbenberg

The aim of this study was to investigate if the changes made in the specifications of the disintegration procedure impact the performance of the disintegration test described in USP chapters <701> and <2040>. Different tablets and capsules were produced, and their disintegration times were determined. The following disintegration time parameters were analyzed: volume of the immersion fluid, typ...

Journal: :American journal of botany 2001
R G Olmstead C W Depamphilis A D Wolfe N D Young W J Elisons P A Reeves

A molecular systematic study of Scrophulariaceae sensu lato using DNA sequences of three plastid genes (rbcL, ndhF, and rps2) revealed at least five distinct monophyletic groups. Thirty-nine genera representing 24 tribes of the Scrophulariaceae s.l. (sensu lato) were analyzed along with representatives of 15 other families of Lamiales. The Scrophulariaceae s.s. (sensu stricto) include part or a...

1997
J. T. Chang

Conditional probability distributions seem to have a bad reputation when it comes to rigorous treatment of conditioning. Technical arguments are published as manipulations of Radon±Nikodym derivatives, although we all secretly perform heuristic calculations using elementary de®nitions of conditional probabilities. In print, measurability and averaging properties substitute for intuitive ideas a...

Journal: :Journal of research of the National Bureau of Standards 1948
I FEISTER L F CURTISS

The radiations from 60-day Sb lN have been studied by several investigators. H ales and Jordan [2] used a 1800 spectrometer to study the beta spectrum of Sb124. Tbey report the presence of two components with maximum cnergies at 0.74 ± O.03 and 2.45 ± 0.07 million electron volts (NIev) . ~1iller and Omtiss [3], u ing a thin magnetic len spectrometer , also ob erved a complex beta specLrum, but ...

2005
Bengt Oxelman Per Kornhall Richard G. Olmstead Birgitta Bremer

Lamiales sensu APG II (The Angiosperm Phylogeny Group, 2003) constitute a major clade of flowering plants, with approximately 17,800 species (Judd & al., 2002) and 23 families, representing 12.3% of eudicot diversity (Stevens, 2001, onwards). They belong to a major asterid clade, the Lamiids (Bremer & al., 2002). The monophyly of Lamiales is comparatively uncontroversial and well supported by m...

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