Institution
University of Nevada, Reno
Education•Reno, Nevada, United States•
About: University of Nevada, Reno is a education organization based out in Reno, Nevada, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13561 authors who have published 28217 publications receiving 882002 citations. The organization is also known as: University of Nevada & Nevada State University.
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TL;DR: In this paper, it was shown that the rate of droplet growth is proportional to the magnitude of the kernel, and the pattern of growth depends upon a derivative of a kernel with respect to droplet size.
Abstract: Calculations of cloud droplet growth over the radius range from 4 to 200 μ for collection kernels representing hydrodynamic capture, electric field capture, and geometric sweep-out show that the rate of droplet growth is proportional to the magnitude of the kernel, and the pattern of growth depends upon a derivative of the kernel with respect to droplet size. Below 60 μ a large kernel derivative causes the distribution to spread. Above 6O μ the derivative of each kernel decreases to a common value that causes water to accumulate on large drops. This leads to a self-preserving distribution, similar to Golovin's, asymptotic solution, in about 5 min when the liquid water content is 1 gm m−3. The stochastic model produces a growth rate nearly equal to the continuous model but transfers much more water to larger drops.
242 citations
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TL;DR: Impact of feedwater pH (2-12) was studied for hydrothermal carbonization (HTC) of wheat straw at 200 and 260°C and organic acids were increasing, while sugars were decreasing in case of basic feedwater, however, phenolic compounds were present only at 260 °C and their concentrations were increasing in basicFeedwater.
242 citations
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TL;DR: Exposure to unfocused images has previously been shown to influence acuity and contrast sensitivity, and here it is shown that adaptation can also profoundly affect the actual perception of image focus.
Abstract: Blur is an intrinsic feature of retina images that varies widely across images and observers, yet the world still typically appears 'in focus'. Here we examine the putative role of neural adaptation1 in the human perception of image focus by measuring how blur judgments depended on the state of adaptation. Exposure to unfocused images has previously been shown to influence acuity and contrast sensitivity and here we show that adaptation can also profoundly affect the actual perception of image focus.
242 citations
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Fred Hutchinson Cancer Research Center1, University of Washington2, University of North Carolina at Chapel Hill3, University of Oklahoma4, University of California, Los Angeles5, University of Nevada, Reno6, University of Tennessee Health Science Center7, Harvard University8, University of Alabama at Birmingham9, Medical College of Wisconsin10, National Institutes of Health11, Wake Forest University12, Pharmaceutical Product Development13, University of California, San Francisco14, University of Minnesota15, Yeshiva University16, Baylor College of Medicine17, Brown University18, Emory University19, George Washington University20, Kaiser Permanente21, Howard University22, Northwestern University23, Rush University Medical Center24, Stanford University25, Stony Brook University26, Ohio State University27, University of Arizona28, University at Buffalo29, University of California, Davis30, University of California, Irvine31, University of California, San Diego32, University of Cincinnati33, University of Florida34, University of Hawaii at Manoa35, University of Iowa36, University of Massachusetts Medical School37, Rutgers University38, University of Miami39, University of Pittsburgh40, University of Texas Health Science Center at San Antonio41, University of Wisconsin-Madison42
TL;DR: Use of up to 2 years of estrogen plus progestin was associated with increases in mammographic density and abnormal findings over a 1-year and 2-year period.
Abstract: BACKGROUND Increased mammographic density reduces the sensitivity of screening mammography, is associated with increased breast cancer risk, and may be hormone related. We assessed the effect of estrogen-plus-progestin therapy on mammographic density. METHODS In a racially and ethnically diverse ancillary study of the Women's Health Initiative, we examined data from 413 postmenopausal women who had been randomly assigned to receive daily combined conjugated equine estrogens (0.625 mg) plus medroxyprogesterone acetate (i.e., progestin; 2.5 mg) (n = 202) or daily placebo (n = 211). We assessed the effect of estrogen plus progestin on measured mammographic percent density and abnormal findings over a 1-year and 2-year period. All tests of statistical significance were two-sided and were based on F tests or t tests from mixed-effects models. RESULTS Mean mammographic percent density increased by 6.0% at year 1, compared with baseline, in the estrogen-plus-progestin group but decreased by 0.9% in the placebo group (difference = 6.9%, 95% confidence interval [CI] = 5.3% to 8.5%; P < .001). The mean changes in mammographic density persisted but were attenuated slightly after 2 years, with an absolute increase of 4.9% in the estrogen-plus-progestin group and a decrease of 0.8% in the placebo group (difference = 5.7%, 95% CI = 4.3% to 7.3%; P < .001). These effects were consistent across racial/ethnic groups but were higher among women aged 70-79 years in the estrogen-plus-progestin group (mean increase at year 1 = 11.6%) than in the placebo group (mean decrease at year 1 = 0.1%) (difference of the means = 11.7%, 95% CI = 8.2% to 15.4%; P < .001, comparing across age groups). At year 1, women who were adherent to treatment in the estrogen-plus-progestin group had a mean increase in density of 7.7% (95% CI = 5.9% to 9.5%), and women in the placebo group had a mean decrease in density of 1.1% (95% CI = 0.3% to 1.9%). Use of estrogen plus progestin was associated with an increased risk of having an abnormal mammogram at year 1 (relative risk = 3.9, 95% CI = 1.5 to 10.2; P = .003), compared with placebo, that was not explained by an increase in density. CONCLUSIONS Use of up to 2 years of estrogen plus progestin was associated with increases in mammographic density.
242 citations
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TL;DR: In this paper, the fractal dimension is proposed as a method of objectively quantifying the roughness profile of such discontinuities, which can be used in the analysis of deformation and failure of rock masses.
242 citations
Authors
Showing all 13726 results
Name | H-index | Papers | Citations |
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Robert Langer | 281 | 2324 | 326306 |
Thomas C. Südhof | 191 | 653 | 118007 |
David W. Johnson | 160 | 2714 | 140778 |
Menachem Elimelech | 157 | 547 | 95285 |
Jeffrey L. Cummings | 148 | 833 | 116067 |
Bing Zhang | 121 | 1194 | 56980 |
Arturo Casadevall | 120 | 980 | 55001 |
Mark H. Ellisman | 117 | 637 | 55289 |
Thomas G. Ksiazek | 113 | 398 | 46108 |
Anthony G. Fane | 112 | 565 | 40904 |
Leonardo M. Fabbri | 109 | 566 | 60838 |
Gary H. Lyman | 108 | 694 | 52469 |
Steven C. Hayes | 106 | 450 | 51556 |
Stephen P. Long | 103 | 384 | 46119 |
Gary Cutter | 103 | 737 | 40507 |