Douglas group

Douglas E. Lowenhaupt, M.S., Group Leader, Coke Laboratory, CONSOL, Inc. Member, American Society for Testing and Materials, Iron and Steel Making Society, International Committee for Coal Petrology (Section 27, Energy Resources, Conversion, and Utilization)... 

Kello, V. and Sadlej, A.J. (1996) Standardized basis sets for high-level-correlated relativistic calculations of atomic and molecular electric properties in the spin-averaged Douglas-Kroll (nopair) approximation 1. Groups Ib and 11b. Theoretica Chimica Acta, 94, 93-104. 

Elucidation of the reaction mechanism of the Sugasawa reaction was initiated under the initiative of Dr. Alan Douglas who was the head of our NMR group [13], The results are summarized in Scheme 1.9. 

Saag MS, Emini EA, Laskin OL, Douglas J, Lapidus WI, Schleif WA, Whitley RJ, Hildebrand C, Byrnes VW, Kappes JC, Anderson KW, Massari FE, Shaw GM, the L-697,661 Working Group. A short-term clinical evaluation of L-697,661, a non-nucleoside inhibitor of HIV-1 reverse transcriptase. N Engl J Med 1993 329 1065-1072. 

Bauschlicher [48] compared a number of approximate approaches for scalar relativistic effects to Douglas-Kroll quasirelativistic CCSD(T) calculations. He found that the ACPF/MTsmall level of theory faithfully reproduces his more rigorous calculations, while the use of non-size extensive approaches like CISD leads to serious errors. For third-row main group systems, studies by the same author [49] indicate that more rigorous approaches may be in order. 

Figure 12. The fragility parameter as a function of the inverse number 1 /M of united atom groups in single chains for constant pressure (P = 1 atm 0.101325 MPa) F-F and F-S polymer fluids. For a given M, the parameter is determined as the slope of ScT/( isl/k ) versus hT = T — Tq)/Tq over the temperature range between Tg and Tj. A single data point denoted by refers to high molar mass F-S polymer fluid at a pressure of P = 240 atm (24.3 MPa). (Used with permission from J. Dudowicz, K. F. Freed, and J. F. Douglas, Journal of Physical Chemistry B 109, 21350 (2005). Copyright 2005 American Chemical Society.)...

Some groups of entomopathogenic viruses are capable of causing severe epizootic diseases in insect populations. We consider these viruses excellent natural pest control agents if the host insects are destructive species. Natural epizootics of viral diseases are known to have terminated outbreaks of major forest pests, such as the nun moth in Europe and the Douglas-fir tussock moth in the United States. 

The addition of an allylic group was reported in the synthesis of heneicos-6-en-ll-one, the sex pheromone of the Douglas fir tussock moth.67 This method was compared advantageously to the classical processes employing the toxic tin hydrides, with respect to the rates, yields, and chemoselectivity.68,69 Concerning the stereoselectivity however, no major difference exists between the conventional and sonochemical methods.70,71... 

The flowsheet synthesis of continuous chemical-like process can be performed following a systematic strategy known as the hierarchical approach. The procedure, initially proposed by Jim Douglas and coworkers in the decade 1980-90 [1, 2], describes the conceptual design process as a logical sequence of analysis and synthesis steps grouped in levels. Each level involves a flowsheet development mechanism based on design decisions. The result is not a unique solution but a collection of alternative flowsheets from which an evaluation procedure eliminates the less attractive ones. 

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