Now showing items 1-10 of 6739
Observations on the habitat of Pogonia ophioglossoides (Orchidaceae) in Northern Michigan.
(1997)
In conclusion, observation of Pogonia ophioglossoides, the rose pogonia or snake's mouth orchid, appears to indicate that it is a moisture-loving, calciphilic, minerotrophic fen species which grows on the quaking mat, poor ...
A revised model for the density and thermal expansivity of K 2 O-Na 2 O-CaO-MgO-Al 2 O 3 -SiO 2 liquids from 700 to 1900 K: extension to crustal magmatic temperatures
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1997-12)
A revised model for the volume and thermal expansivity of K 2 O-Na 2 O-CaO-MgO-Al 2 O 3 -SiO 2 liquids, which can be applied at crustal magmatic temperatures, has been derived from new low temperature (701–1092 K) density ...
Endangered species update, 7:6 (April 1990)
(University of Michigan, School of Natural Resources, 1990-04)
Vector-like fermion and standard Higgs production at hadron colliders
(Elsevier, 1990-04-09)
Vector-like fermions are characterized by large neutral current decay rates, in particular into Higgs bosons. If they exist, their clear signals at hadron colliders open a window to Higgs detection, especially to the ...
Experimental Simulations Of Explosive Degassing Of Magma
(Macmillan Magazines Ltd., 1994-11-03)
THE violent release of volatiles in explosive volcanic eruptions is known to cause fragmentation of magma and acceleration of the resulting mixture of gas and pyroclasts to velocities exceeding 100 m s(-1) (ref. 1). But ...
Differential operators commuting with invariant functions
(Birkhäuser Verlag; Birkhäuser Verlag, Basel, ; Springer Science+Business Media, 1997-10)
Let be a reductive, complex Lie algebra, with adjoint group G , let G act on the ring of differential operators via the adjoint action and write for the differential of this action. We prove that the commutant, in , of is ...
Social interactions between captive adult male and infant lowland gorillas: Implications regarding kin selection and zoo management
(John Wiley & Sons, Inc., 1999)
Interactions between unrelated and related silverback-infant dyads are compared in an attempt to assess the influence that kinship may have on male parental behavior. Observational data were collected on each member of two ...
Schlieren measurements of the hydrodynamics of excimer laser ablation of polymers in atmospheric pressure gas
(The American Institute of Physics, 1990-08-01)
Pulsed schlieren photography and fast helium‐neon laser deflection are used to study the hydrodynamics of laser ablation of polyethyleneterephthalate and polymethylmethacrylate by pulsed KrF (248 nm) radiation in atmospheric ...
Historical changes in sediments of Pyramid Lake, Nevada, USA: consequences of changes in the water balance of a terminal desert lake
(Kluwer Academic Publishers; Springer Science+Business Media, 1994-01)
Sediment cores from the shallow and deep basins of Pyramid Lake, Nevada, revealed variations in composition with depth reflecting changes in lake level, river inflow, and lake productivity. Recent sediments from the period ...