BACKGROUND AND AIMS Growth in trunk height in canopy openings is important for saplings. How saplings increase height growth in canopy openings may relate to crown architectural constraints. Responses of crown development to canopy openings in relation to trunk height growth were studied for saplings (0.2-2.5 m tall) of eight tropical submontane forest tree species in Indonesia. The results of ...

BACKGROUND Multiple risk factors have been identified for traumatic dental injuries, including crown fractures, in various age groups and various populations. The objective of this study was to determine the prevalence, risk factors and family related factors for crown trauma among 8 to 16 year-old children in a suburban population, Nigeria. METHODS This is a secondary analysis of a data of 2...

We consider the framework of stochastic multi-armed bandit problems and study the possibilities and limitations of forecasters that perform an on-line exploration of the arms. A forecaster is assessed in terms of its simple regret, a regret notion that captures the fact that exploration is only constrained by the number of available rounds (not necessarily known in advance), in contrast to the ...

2,4-dithiouracil (DTU) forms in the crystals the H-bonded monohydrates of a 1:1:1 ratio with 18-crown-6 (18C6) 1, cis,syn,cis-isomer of dicyclohexano-18-crown-6 (DCH6A) 2, and benzo-18-crown-6 (B18C6) 3, while the anhydrous adduct with cis,anti,cis-isomer of dicyclohexano-18-crown-6 (DCH6B) 4 is of a 2:1 ratio. In 1-3 the components reproducibly alternate in the chains, while in 4 the chains ar...

Crown profile models were developed for north, east, south, and west crown directions of dominant trees, intermediate trees, and suppressed trees in planted stands of Larix olgensis Henry in Northeast China. A total of 139 sample trees were randomly selected, and all branches of each tree were measured. A segmented power equation, segmented polynomial equation, modified Weibull equation, and Ko...

Supramolecular cations formed by monoprotonated pyridazinium cations and cis-anti-cis-dicyclohexano[18]-crown-6 (DCH[18]-crown-6) or dibenzo[18]-crown-6 (DB[18]-crown-6) were introduced into [Ni(dmit)2]− salts (where dmit2− = 2-thione-1,3-dithiole-4,5-dithiolate). X-ray crystal structure analysis of (pyridazinium+)(DCH[18]-crown-6)[Ni(dmit)2]− (1) revealed a chair-type conformation of the DCH[1...

F. Heidler Z. Flisowski University of the Federal Armed Forces Munich, Germany University of Technology Warsaw, Poland [email protected] [email protected] W. Zischank Ch. Bouquegneau University of the Federal Armed Forces Munich, Germany Faculté Polytechnique de Mons, Belgium [email protected] [email protected] C. Mazzetti University “La Sapienza”...

This issue brief provides a brief overview of the legal, political, and operational frameworks protecting children from the effects of armed conflict, notably from violations by nonstate armed groups. It explores some of the limitations of these frameworks and their mechanisms, and then discusses ways to maximize the comparative advantages of different actors when engaging nonstate armed groups...

The armed forces of the United States do not and cannot operate in isolation from the larger American society. They are part of a polity whose needs they must serve. Moreover, to win the trust and support of the larger polity, the armed services must be widely perceived as serving important social needs. Without this trust and support, the armed forces will not get the resources they need to fu...