منابع مشابه
DNA barcoding reveals a new record of Potamogeton distinctus (Potamogetonaceae) and its natural hybrids, Potamogeton distinctus × Potamogeton nodosus and Potamogeton distinctus × Potamogeton wrightii (Potamogeton ×malainoides) from Myanmar
Indo-China floristic region is among the 34 richest floristic regions of the world, and its plant diversity is still under investigation. Here we report a new record of an aquatic plant, Potamogetondistinctus, from Myanmar, a part of the region, that is detected by means of DNA barcoding method. The molecular method further identified the other specimens as hybrids of Potamogeton: one is Potamo...
متن کاملJane Robbins
Australian social policy has embraced what have loosely been termed " Third Way " initiatives over the last few years. The Howard government has announced a tripartate " Social Coalition " of government, business and community sectors as its chosen model for addressing social disadvantage and exclusion. " Mutual obligation " , " social entrepreneurialsm " , " partnerships " and " capacity build...
متن کاملThe Robbins Equation
Researchers have long been interested in nding simple axiomatizations of theories, including Boolean algebra. Boolean algebra can be axiomatized in many diierent ways using various sets of operations. The ordinary operations of Boolean algebra are disjunction (+), conjunction (), negation (0), zero (0), and one (1). One of the rst simple axiomatizations was presented by E. V. (Associativity) ((...
متن کاملNonaliquots and Robbins Numbers∗
Let φ(·) and σ(·) denote the Euler function and the sum of divisors function, respectively. In this paper, we give a lower bound for the number of m ≤ x for which the equation m = σ(n)−n has no solution. We also show that the set of positive integers m not of the form (p − 1)/2 − φ(p − 1) for some prime number p has a positive lower asymptotic density. ∗MSC numbers: 11A25; 11A41, 11N64
متن کاملOn a Problem of Robbins
Robbins’s visionary 1951 paper can be seen as an exercise in binary classification, but also as a precursor to the outpouring of recent work on high-dimensional data analysis and multiple testing. It can also be seen as the birth of empirical Bayes methods. Our objective in the present note is to use this problem and several variants of it to provide a glimpse into the evolution of empirical Ba...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1880
ISSN: 0006-8071
DOI: 10.1086/325420