Filters








24,429 Hits in 2.4 sec

School Architecture. John J. Donovan

1921 The Elementary school journal  
Donovan, architect, with the assistance of a staff of professional school workers. tJoHN J. Donovan, School Architecture. New York: Macmillan Co., 1921.  ...  ‘The mutual dependence of modern school architecture and modern school development is the keynote of a recent volume' written by John J.  ... 
doi:10.1086/455076 fatcat:rphm27h3zjbhrft3otpr4xawfy

School Administration and School BuildingsSchool Architecture. John J. Donovan

1921 The School Review  
SJOHN J. DONOVAN, School Architecture. New York: Macmillan Co., 1921.  ... 
doi:10.1086/437454 fatcat:65ynevzkk5cwrbqgzy3a6uw2ne

Perforated Duodenal Ulcer

Arthur J. Donovan, Thomas V. Berne, John A. Donovan
1998 Archives of Surgery  
Tokunaga et al Corresponding author: Arthur J. Donovan, MD, 1201 Heatherside Rd, Pasadena, CA 91105.  ...  In the mid 1950s, interest in nonsurgical treatment of perforated duodenal ulcer was rekindled at the University of Southern California under the aegis of Clarence J.  ... 
doi:10.1001/archsurg.133.11.1166 pmid:9820345 fatcat:pyk3nillnvefphskrmmjj53af4

John D. Gearhart (1943-2020)

Peter J Donovan, Kenneth S Zaret
2020 Science  
John showed that no matter what your scientific accomplishments, some things in life are more important. j  ...  J ohn Gearhart, the developmental biologist who first derived human pluripotent stem cells from primordial germ cells, died on 27 May. He was 77.  ... 
doi:10.1126/science.abd6915 pmid:32764057 fatcat:fpolg3phj5dipd4qe57ziyylhq

Spruce-Beer

John J. Donovan
1939 Notes and Queries  
Joun J. Donovan. completed our beer [HE STOCKS (clxxvii. 12, 51, 68, 105). — A well-preserved pair of stocks, wit bench, exists near the village green at Dun- church, ‘Warwickshire.  ...  J. Epmunps.  ... 
doi:10.1093/nq/177.10.178g fatcat:6woepqqxwvgwfez6iwdghwqai4

The dimensionality of judgments of heaviness

Robert J. Donovan, John Ross
1969 Perception & Psychophysics  
ROBERT J. DONOVAN2 AND JOHN ROSS UNIVERSITY OF WESTERN AUSTRALIA It was expected that the VW and YD series would delineate the dimensions of weight and density in the two ranges.  ...  REFERENCE ROSS, J., & DI LaLLa, V. A vector model for psychophysical judgement. Journal of Experimental Psychology Monograph Supplement, 1968, Vo. 77, No.3, Part 2. NOTES I.  ... 
doi:10.3758/bf03207026 fatcat:cyeq5ogplfftrgbtqikosiskze

The Forgotten Republics

John J. Donovan, Clarence A. Manning
1953 American Journal of International Law  
doi:10.2307/2194946 fatcat:cfoirpwm2rfjjfpkd2uc3wq3hq

Neurological issues

William H Donovan, Douglas J Brown, John F Ditunno Jr, Paul Dollfus, Hans L Frankel
1997 Spinal Cord  
Donovan 4 reported signi®cant problems existed with interrater reliability, particularly with the parameters of neurologic level, what was then called the Frankel grade, and the zone of partial preservation  ... 
doi:10.1038/sj.sc.3100449 pmid:9160450 fatcat:o3kuedw5trehxakm333ywb5whu

What's Still Missing with the Fluorescence Corrections and Should We Care?

John T. Armstrong, John J. Donovan
2014 Microscopy and Microanalysis  
Of the corrections employed for quantitative electron microprobe analysis, the correction for effects of fluorescence by characteristic x-ray lines has changed the least since the early re-parameterization of Castaing's original correction by S. J.B. Reed in 1965 [1], and formal correction for the effects of continuum fluorescence is still seldom applied with no consensus parameterization employed by the standard software provided for EDS and WDS analysis systems. With regard to the
more » ... ic fluorescence correction, part of the reason for the lack of change is the brilliance of Reed's formulation of a useful set of equations. However, although he noted in his original paper that a number of simplifications had been made due to lack of fundamental measurement data and to aid in calculation and he and others later proposed substitution of better data sets and equations [e.g., 2,3], most correction programs still retain the original simplified expressions. Alternate methods have been proposed based on use of parameterized expressions for the primary ϕ(ρz) distribution coupled with numerical integration of the fluorescing and fluoresced x-ray path lengths [e.g., 4-6] and from Monte Carlo calculations [e.g., 7-10]. These alternate expressions can be used or modified to calculate correction for fluorescence in thin films, layered specimens, particles, inclusions, and across phase boundaries. But none of these are yet in common use and most still involve assumptions or simplifications to avoid the very extensive set of calculations a truly rigorous fluorescence correction would require. Moreover there are virtually no sets of measurements of k-ratios in well characterized systems where fluorescence effects are important to determine if the various correction algorithms actually work [e.g. 11]. We are in the process of evaluating each of the components of the conventional fluorescence corrections, updating those portions for which there are improved data sets and/or algorithms, determining for which types of specimens and under which analytical conditions these changes would be significant. (A 10% error may sound significant; but if it is a 10% error of a 5% correction, it only has a 0.5% effect on the answer.) These changes are being incorporated in the CALCZAF, CITZAF and TRYZAF correction programs [e.g., 12]. We also are using numerical integration and Monte Carlo calculations to find when the more rigorous expressions produce significantly different results for bulk specimens and to see whether their calculations for more complicated geometries can be parameterized into simpler expressions. Finally we are evaluating test specimens that can be used to evaluate the accuracy of the various corrections. Updated compilations of fluorescence yields and mass absorption coefficients have only percent-level effects on the magnitude of characteristic fluorescence in most cases where it is a significant correction. The mass absorption coefficients used in the continuum fluorescence correction, particularly around absorption edges, can have a larger effect. Of much greater significance is the correction for the absorption 'jump ratio' (the ratio of the mass absorption coefficients just above and below the absorption edge of the fluorescing line). This is a multiplying factor in the fluorescence correction, i.e., a 10% error in the value results in a 10% error in the calculated ratio of fluorescence to primary emitted radiation. Reed, in his original correction [1], used constant values of 0.88 for K-lines, 0.75 for L lines and did not recommend a value for M lines. A subsequent replacement of simple functions of atomic 726
doi:10.1017/s1431927614005352 fatcat:yqf3d7yqfjbw7adkyzx26tpd6a

Improving Trace Element Analysis Precision By Not Using Off-Peak Measurements

John J. Donovan, John T. Armstrong
2015 Microscopy and Microanalysis  
doi:10.1017/s1431927615008004 fatcat:g6plyzjtf5bfnlooyb6fd6meyu

Selecting Primers for Non-English-Speaking Children

John J. Donovan
1931 The Elementary school journal  
SELECTING PRIMERS FOR NON-ENGLISH- SPEAKING CHILDREN JOHN J.  ...  F, J. Prout, Emeline Baumeister, and Helen Renner, Thought Test Readers, Lincoln, Nebraska: University Publishing Co., 1927 (revised). 3° SELECTING PRIMERS 31 7. J. W. Searson and G. E.  ... 
doi:10.1086/456670 fatcat:th7eekvqfzcwtfxuwbnu2lfjxy

A New EPMA Method For Fast Trace Element Analysis In Simple Matrices

John J. Donovan, John T. Armstrong
2014 Microscopy and Microanalysis  
doi:10.1017/s1431927614005340 fatcat:hvs2qtho4zfpfaiauep4rfkje4

Databsse system approach the management decision support

John J. Donovan
1976 ACM Transactions on Database Systems  
This concept is still somewhat controversial [Donovan and Madnick, 1976 ].  ...  The performance implications of this configuration are discussed elsewhere (Donovan,1976) .  ... 
doi:10.1145/320493.320500 fatcat:kmsk4beqjrdlrezfrst3aurtwu

CRISPR: A path through the thicket

Debra J. H. Mathews, Sarah Chan, Peter J. Donovan, Thomas Douglas, Christopher Gyngell, John Harris, Alan Regenberg, Robin Lovell-Badge
2015 Nature  
. ■ As various advisory bodies, scientific organizations and funding agencies deliberate on genome editing in humans, Debra J. H.  ... 
doi:10.1038/527159a pmid:26560284 fatcat:dn6bxmkl2jhktlw5gc4ettctra

Compositional Averaging of Continuum Intensities in Multielement Compounds

John J. Donovan, Nicholas E. Pingitore
2002 Microscopy and Microanalysis  
John J.Donovan and Nicholas E. Pingitore, Jr.  ...  ., Donovan and Pingitore, 1998; Pingitore et al., 1999 Pingitore et al., , 2000 !  ... 
doi:10.1017/s1431927602020160 pmid:12533219 fatcat:76nnkiygjvfodg6cmiy6ibblf4
« Previous Showing results 1 — 15 out of 24,429 results