Search Results - (Author, Cooperation:F. Douglas)
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1Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-05-30Publisher: National Academy of SciencesPrint ISSN: 0027-8424Electronic ISSN: 1091-6490Topics: BiologyMedicineNatural Sciences in GeneralPublished by: -
2Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-03-07Publisher: Oxford University PressPrint ISSN: 0829-318XElectronic ISSN: 1758-4469Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionPublished by: -
3Latest Papers from Table of Contents or Articles in PressMarat Andreev, Juan J. de Pablo, Alexandros Chremos, Jack F. Douglas
American Chemical Society (ACS)
Published 2018Staff ViewPublication Date: 2018-04-04Publisher: American Chemical Society (ACS)Electronic ISSN: 1520-5207Topics: Chemistry and PharmacologyPhysicsPublished by: -
4Latest Papers from Table of Contents or Articles in PressE. Ruark ; K. Snape ; P. Humburg ; C. Loveday ; I. Bajrami ; R. Brough ; D. N. Rodrigues ; A. Renwick ; S. Seal ; E. Ramsay ; V. Duarte Sdel ; M. A. Rivas ; M. Warren-Perry ; A. Zachariou ; A. Campion-Flora ; S. Hanks ; A. Murray ; N. Ansari Pour ; J. Douglas ; L. Gregory ; A. Rimmer ; N. M. Walker ; T. P. Yang ; J. W. Adlard ; J. Barwell ; J. Berg ; A. F. Brady ; C. Brewer ; G. Brice ; C. Chapman ; J. Cook ; R. Davidson ; A. Donaldson ; F. Douglas ; D. Eccles ; D. G. Evans ; L. Greenhalgh ; A. Henderson ; L. Izatt ; A. Kumar ; F. Lalloo ; Z. Miedzybrodzka ; P. J. Morrison ; J. Paterson ; M. Porteous ; M. T. Rogers ; S. Shanley ; L. Walker ; M. Gore ; R. Houlston ; M. A. Brown ; M. J. Caufield ; P. Deloukas ; M. I. McCarthy ; J. A. Todd ; C. Turnbull ; J. S. Reis-Filho ; A. Ashworth ; A. C. Antoniou ; C. J. Lord ; P. Donnelly ; N. Rahman
Nature Publishing Group (NPG)
Published 2012Staff ViewPublication Date: 2012-12-18Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Alleles ; Breast Neoplasms/*genetics ; Cluster Analysis ; Exons ; Female ; Genetic Predisposition to Disease/*genetics ; Humans ; Isoenzymes/genetics ; Lymphocytes/metabolism ; *Mosaicism ; *Mutation ; Ovarian Neoplasms/*genetics ; Phosphoprotein Phosphatases/*genetics ; Sequence Analysis, DNA ; Tumor Suppressor Protein p53/metabolismPublished by: -
5Latest Papers from Table of Contents or Articles in PressWenjie Xia, Jake Song, Nitin K. Hansoge, Frederick R. Phelan, Sinan Keten and Jack F. Douglas
American Chemical Society (ACS)
Published 2018Staff ViewPublication Date: 2018-02-06Publisher: American Chemical Society (ACS)Electronic ISSN: 1520-5207Topics: Chemistry and PharmacologyPhysicsPublished by: -
6Articles: DFG German National LicensesBurton, Rodney L. ; Witherspoon, F. Douglas ; Goldstein, Shyke A.
[S.l.] : American Institute of Physics (AIP)
Published 1991Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The accelerating force of a railgun 1/2L'I2a can be increased by augmenting the self-induced magnetic field created by the armature current. Augmentation fields can be produced by external current coils or, as is done here, by shorting the railgun muzzle, and using the gun rails as the augmentation coil. Experimental results are presented for a 3.6-m railgun operated in this self-augmented mode, and effective inductance gradients are achieved which are as much as 9.3 times that of the unaugmented gun. A circuit model is presented which explains features of the measured shunt current and voltage. It is concluded that self-augmentation is an effective way to reduce ohmic heating in the armature of a railgun.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesSchaff, Steven D. ; Pezeshki, S. Reza ; Shields, F. Douglas
Boston, MA, USA : Blackwell Science Inc
Published 2002Staff ViewISSN: 1526-100XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: Black willow (Salix nigra) uses periodic flood events for dispersal of vegetative propagules, subjecting them to periods of soaking before their deposition along the streambank. It was hypothesized that this life history trait results in optimal conditions for willow growth and survival. To test this hypothesis, a greenhouse experiment was conducted using 1.2-m-long black willow cuttings (posts) with a basal diameter of 5 cm. Cuttings were subjected to three soaking treatments (0, 3, and 10 days) and then grown under four soil moisture regimes (control, drought, permanently flooded, and intermittently flooded). Growth, biomass, and survival were recorded. Results showed that soaking posts for 10 days was most beneficial in the control soil moisture regime, enhancing root, shoot, leaf, and total biomass production. Shoot abundance and growth were also enhanced by 10 days of soaking in the control and permanently flooded moisture regimes. Finally, survival increased significantly in control and drought moisture regimes in response to the 10-day soaking treatment. Results clearly demonstrated that soaking had significant effects on willow post success when evaluated across all soil moisture regimes. Posts subjected to the 10-day soaking treatment consistently had greatest growth and biomass and displayed a doubling of the survival rate. Therefore, soaking willow cuttings before planting is a simple, inexpensive technique that may be used to bolster streambank restoration success.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1468-2257Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: GeographyEconomicsType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesShields, F. Douglas ; Knight, Scott S. ; III, Sam Testa ; Cooper, Charles M.
Oxford, UK : Blackwell Publishing Ltd
Published 2003Staff ViewISSN: 1752-1688Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Architecture, Civil Engineering, SurveyingGeographyNotes: : Research has demonstrated the utility of metrics based on spatial velocity gradients to characterize and describe stream habitat, with higher mean spatial gradients indicative of higher levels of physical heterogeneity and thus habitat quality. However, detailed description of the velocity field that is needed to compute these metrics is difficult to obtain. Acoustic Doppler current profilers (ADCPs) may be used to rapidly collect detailed representations of river depth and velocity fields in rivers deeper than 1 m. Such data were collected in March 2000 from cross sections of the Little Tallahatchie River, Mississippi, representing three distinct habitat types (naturally sinuous, channelized, and abandoned channel). These datasets were used to compute component velocities, vorticity, and area weighted mean vorticity (circulation). Velocities and circulation were highest in the meander, lowest in the abandoned channel, and intermediate in the channelized reach. Secondary flow, expressed as the average magnitude of the lateral (transverse) velocity divided by the total velocity, was significantly higher in the meander. The sinuous natural channel and abandoned channel displayed distinctive spatial patterns, with regions of depressed velocity consistently occurring near banks. ADCPs hold great potential as tools for the study of riverine ecosystems, but data reduction is difficult using existing software.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1095-8649Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: The possibility of natural hybridization between two species of darters, Etheostoma spectabile and caeruleum was investigated using the technique of starch gel electrophoresis of skeletal muscle homogenates. Inter- and intraspecific genetic variability at five enzyme loci was found. Presumed morphological hybrids are most probably not genetic hybrids as judged by their enzyme genotypes. The analysis of enzyme variability supports a previously published phylogeny for the darters.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1752-1688Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Architecture, Civil Engineering, SurveyingGeographyNotes: : The environmental effects of flood control channel modifications such as clearing and snagging, straightening, enlargement, and/or paving can be quite severe in some cases. Information review reveals that several environmental features have been incorporated into the design, construction, operation, or maintenance of recent flood control channel projects to avoid adverse environmental impacts and enhance environmental quality. Typically, these features have been proposed by conservation agencies and designed with minimal quantitative analysis. Environmental features for channel projects include selective clearing and snagging techniques, channel designs with nonuniform geometry such as single bank modification and floodways, restoration and enhancement of aquatic habitat, improved techniques for placement of excavated material, and revegetation.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 0094-5145Topics: MedicineURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 0094-5145Topics: MedicineNotes: RESEARCH REPORTSURL: -
14Articles: DFG German National LicensesScutchfield, F. Douglas 〈MD〉 ; Barbakow, Penny 〈MBA〉
New York, N.Y. : Periodicals Archive Online (PAO)
Published 1983Staff ViewISSN: 0094-5145Topics: MedicineNotes: RESEARCH REPORTSURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 0010-3802Topics: Political ScienceSociologyNotes: Northern RhodesiaURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1752-1688Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Architecture, Civil Engineering, SurveyingGeographyNotes: he influence of woody vegetation on the reliability of a sandy levee was investigated using field data in seepage and slope stability analyses. Field data were collected from selected sites within a 10-km segment of a channel levee on the Sacramento River near Elkhorn, California. Root architecture and distribution were determined using the profile-wall method in which root cross sections were exposed in the vertical wall of an excavated trench. Transects running both parallel and perpendicular to the crest of the levee were excavated at six sites. Each site was dominated by different plant species: five sites were adjacent to trees or woody shrubs, while one supported only herbaceous growth. Lateral plant roots were primarily restricted to, and modified, the near-surface soil horizons to a depth of approximately 1 meter. Root area ratios (RARs) did not exceed 2.02 percent and generally decreased exponentially with depth. At depths greater than 20 cm, mean RARs for sites dominated by wood species were not significantly different from the mean RAB for the herbaceous site. No open voids clearly attributable to plant roots were observed. Roots reinforced the levee soil and increased shear resistance in a measurable manner. Infinite slope and circular arc stability analyses were performed on the landward and riverward slopes under different hydraulic loading conditions. Infinite slope analyses indicated increasing root area ratio from 0.01 percent to 1 percent increased the factor of safety from less than one to more than seven. Circular arc analyses indicated that even the lower measured root concentrations sufficed to increase safety factors for arcs with maximum depths of about 1 m from less than one to about 1.2. Our findings suggest that allowing woody shrubs and small trees on levees would provide environmental benefits and would enhance structural integrity without the hazards associated with large trees such as wind-throwing.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1752-1688Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Architecture, Civil Engineering, SurveyingGeographyNotes: : Stability of vegetated and bare riprap revetments along a Sacramento River reach during the flood of record was assessed. Revetment damages resulting from the flood were identified using records provided by the U.S. Army Corps of Engineers and verified by contacts with local interests. Vegetation on revetments along a 35.6-mile reach was mapped using inspection records and stereo interpretation of aerial phoths taken shortly before and after the flood. A follow-up field inspection was conducted in September 1989. Revetment age, material, bank curvature, vegetation, and damage were mapped from a boat. Mapping results from both 1986 and 1989 were placed in a data base. About 70 percent of the bank line of the study reach was revetted. About two-thirds of the revetment was cobble; one-third was quarry stone. Revetment vegetation varied from none to large (〉 50-inch diameter) cotton-woods. About 10 percent of the revetted bank line supported some type of woody vegetation. Damage rates for revetments supporting woody vegetation tended to be lower than for unvegetated revetments of the same age located on banks of similar curvature. Chisquared tests indicated damage rates were greater for older (pre-1950 construction) revetments, but were unable to detect differences based on vegetation or bank curvature. Research is needed to generate design criteria and construction techniques to allow routine use of woody plants in bank protection structures.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 0037-7732Topics: SociologyNotes: BOOK REVIEWSURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 0958-0433Topics: Art HistoryNotes: COLONIAL SECTIONURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1432-1009Source: Springer Online Journal Archives 1860-2000Topics: Energy, Environment Protection, Nuclear Power EngineeringNotes: Abstract Conflicts between the goals of having clean air and economic development are widespread. This paper discusses the conceptual and mathematical development of a linear programming optimization model and an interative solution procedure to determine optimal economic development strategies to promote employment subject to various contexts which limit air pollution carrying capacity. Three cases are formulated: (1) maximizing employment subject to ambient concentration constraints, (2) maximizing employment subject to emissions constraints, and (3) minimizing emissions subject to employment constraints. Empirical relationships using Census and pollutant inventory data describe a conceptual urban system, so that indirect and induced impacts of development strategies are also included. The modeling incorporates both point and nonpoint sources, and is shown to be adaptable for nonreactive emissions.Type of Medium: Electronic ResourceURL: