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914 results on '"Brubaker L"'

102. Holocene thermal maximum in the western Arctic (0–180°W)

Author

Kaufman, D. S., Ager, T. A., Anderson, N. J., Anderson, P. M., Andrews, J. T., Bartlein, P. J., Brubaker, L. B., Coats, L. L., Cwynar, L. C., Duvall, M. L., Dyke, A. S., Edwards, M. E., Eisner, W. R., Gajewski, K., Geirsdóttir, A., Hu, F. S., Jennings, A. E., Kaplan, M. R., Kewin, M. W., Lozhkin, A. V., MacDonald, G. M., Miller, G. H., Mock, C. J., Oswald, W. W., Otto-Bliesner, B. L., Porinchu, D. F., Rühland, K., Smol, J. P., Steig, E. J., Wolfe, B. B., Kaufman, D. S., Ager, T. A., Anderson, N. J., Anderson, P. M., Andrews, J. T., Bartlein, P. J., Brubaker, L. B., Coats, L. L., Cwynar, L. C., Duvall, M. L., Dyke, A. S., Edwards, M. E., Eisner, W. R., Gajewski, K., Geirsdóttir, A., Hu, F. S., Jennings, A. E., Kaplan, M. R., Kewin, M. W., Lozhkin, A. V., MacDonald, G. M., Miller, G. H., Mock, C. J., Oswald, W. W., Otto-Bliesner, B. L., Porinchu, D. F., Rühland, K., Smol, J. P., Steig, E. J., and Wolfe, B. B.

Abstract

The spatio-temporal pattern of peak Holocene warmth (Holocene thermal maximum, HTM) is traced over 140 sites across the Western Hemisphere of the Arctic (0–180°W; north of ∼60°N). Paleoclimate inferences based on a wide variety of proxy indicators provide clear evidence for warmer-than-present conditions at 120 of these sites. At the 16 terrestrial sites where quantitative estimates have been obtained, local HTM temperatures (primarily summer estimates) were on average 1.6±0.8°C higher than present (approximate average of the 20th century), but the warming was time-transgressive across the western Arctic. As the precession-driven summer insolation anomaly peaked 12–10 ka (thousands of calendar years ago), warming was concentrated in northwest North America, while cool conditions lingered in the northeast. Alaska and northwest Canada experienced the HTM between ca 11 and 9 ka, about 4000 yr prior to the HTM in northeast Canada. The delayed warming in Quebec and Labrador was linked to the residual Laurentide Ice Sheet, which chilled the region through its impact on surface energy balance and ocean circulation. The lingering ice also attests to the inherent asymmetry of atmospheric and oceanic circulation that predisposes the region to glaciation and modulates the pattern of climatic change. The spatial asymmetry of warming during the HTM resembles the pattern of warming observed in the Arctic over the last several decades. Although the two warmings are described at different temporal scales, and the HTM was additionally affected by the residual Laurentide ice, the similarities suggest there might be a preferred mode of variability in the atmospheric circulation that generates a recurrent pattern of warming under positive radiative forcing. Unlike the HTM, however, future warming will not be counterbalanced by the cooling effect of a residual North American ice sheet.

Published
2004
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104. Oral Presentation 18

Author

Ramm, O., primary, Lowenstein, L., additional, Mueller, E., additional, Fitzgerald, M. P., additional, Brubaker, L., additional, and Kenton, K., additional

Published
2010
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105. Oral Presentation 19

Author

Harvie, H. S., primary, Lowenstein, L., additional, Omotosho, T., additional, Sanses, T., additional, Molden, S., additional, Hardy, J. R., additional, and Brubaker, L., additional

Published
2010
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109. Modification of Moore measuring machine/Leitz microscope

Author

Greth, H. A and Brubaker, L

Subjects
Quality Assurance And Reliability
Abstract

Quality assurance mechanical inspection, anticipating the need for improved measuring techniques for the various laboratory programs, has perfected a modification of the Leitz microscope for the Moore measuring machine that has the capability of significantly reducing inspection time with increased reliability.

Published
1976

113. High-index immersion lithography with second-generation immersion fluids to enable numerical aperatures of 1.55 for cost effective 32-nm half pitches

Author

French, R. H., primary, Liberman, V., additional, Tran, H. V., additional, Feldman, J., additional, Adelman, D. J., additional, Wheland, R. C., additional, Qiu, W., additional, McLain, S. J., additional, Nagao, O., additional, Kaku, M., additional, Mocella, M., additional, Yang, M. K., additional, Lemon, M. F., additional, Brubaker, L., additional, Shoe, A. L., additional, Fones, B., additional, Fischel, B. E., additional, Krohn, K., additional, Hardy, D., additional, and Chen, C. Y., additional

Published
2007
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138. Climate change and Arctic ecosystems: 2. Modeling, paleodata‐model comparisons, and future projections

Author

Kaplan, J. O., primary, Bigelow, N. H., additional, Prentice, I. C., additional, Harrison, S. P., additional, Bartlein, P. J., additional, Christensen, T. R., additional, Cramer, W., additional, Matveyeva, N. V., additional, McGuire, A. D., additional, Murray, D. F., additional, Razzhivin, V. Y., additional, Smith, B., additional, Walker, D. A., additional, Anderson, P. M., additional, Andreev, A. A., additional, Brubaker, L. B., additional, Edwards, M. E., additional, and Lozhkin, A. V., additional

Published
2003
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145. Pollen-based biomes for Beringia 18,000, 6000 and 0 14C yr bp +

Author

Edwards, M. E., primary, Anderson, P. M., additional, Brubaker, L. B., additional, Ager, T. A., additional, Andreev, A. A., additional, Bigelow, N. H., additional, Cwynar, L. C., additional, Eisner, W. R., additional, Harrison, S. P., additional, Hu, F.-S., additional, Jolly, D., additional, Lozhkin, A. V., additional, MacDonald, G. M., additional, Mock, C. J., additional, Ritchie, J. C., additional, Sher, A. V., additional, Spear, R. W., additional, Williams, J. W., additional, and Yu, G., additional

Published
2000
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149. Urethral sensation following reconstructive pelvic surgery.

Author

Abernethy, M., Davis, C., Lowenstein, L., Mueller, E., Brubaker, L., and Kenton, K.

Subjects
URETHRA surgery, INNERVATION, URINARY incontinence, ANAL diseases, WOMEN'S health
Abstract

Introduction and hypothesis: Most urethral neuromuscular function data focus on efferent rather than afferent innervation. We aimed to determine if changes exist in urethral afferent nerve function before and after reconstructive pelvic surgery (RPS). Secondarily, we compared afferent urethral innervation in women with and without stress urinary incontinence undergoing RPS. Methods: Participants underwent current perception threshold (CPT) and urethral anal reflex (UAR) testing prior to surgery and again post-operatively. Wilcoxon signed ranked test and Spearman's correlations were used and all tests were two-sided. p = 0.05 was considered to indicate statistical significance. Results: Urethral CPT thresholds increased significantly after RPS, consistent with decreased urethral afferent function. Pre-operative urethral CPT thresholds at 5 and 250 Hz were lower in SUI women (10 [IQR 5-29], 40 [32-750]) compared with continent women (63 [14-99], 73 [51-109]; p = 0.45, p = 0.020), signifying increased urethral sensation or easier activation of urethral afferents in SUI women. Conclusions: Reconstructive pelvic surgery is associated with a short-term deleterious impact on urethral afferent function, as demonstrated by the higher levels of stimuli required to activate urethral afferent nerves (decreased urethral sensation) immediately after RPS. Women with SUI required lower levels of stimuli to activate urethral afferent nerves prior to RPS, although UAR latencies were similar regardless of concomitant SUI. [ABSTRACT FROM AUTHOR]

Published
2014
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150. Surgical preparation: are patients 'ready' for stress urinary incontinence surgery?

Author

Brubaker, L., Litman, H., Rickey, L., Dyer, K., Markland, A., Sirls, L., Norton, P., Casiano, E., Paraiso, M., Ghetti, C., Rahn, D., and Kusek, J.

Subjects
*URINARY incontinence, *URINATION disorders, *SURGERY, *PATIENTS, *QUALITY of life
Abstract

Introduction and hypothesis: Patient preparedness for stress urinary incontinence (SUI) surgery is associated with improvements in post-operative satisfaction, symptoms and quality of life (QoL). This planned secondary analysis examined the association of patient preparedness with surgical outcomes, treatment satisfaction and quality of life. Methods: The ValUE trial compared the effect of pre-operative urodynamic studies with a standardized office evaluation of outcomes of SUI surgery at 1 year. In addition to primary and secondary outcome measures, patient satisfaction with treatment was measured using a five-point Likert scale (very dissatisfied to very satisfied) that queried subjects to rate the treatment's effect on overall incontinence, urge incontinence, SUI, and frequency. Preparedness for surgery was assessed using an 11-question Patient Preparedness Questionnaire (PPQ). Results: Based on PPQ question 11, 4 out of 5 (81 %) of women reported they 'agreed' or 'strongly agreed' that they were prepared for surgery. Selected demographic and clinical characteristics were similar in unprepared and prepared women. Among SUI severity baseline measures, total UDI score was significantly but weakly associated with preparedness (question 11 of the PPQ; Spearman's r = 0.13, p = 0.001). Although preparedness for surgery was not associated with successful outcomes, it was associated with satisfaction ( r = 0.11, p = 0.02) and larger PGI-S improvement (increase; p = 0.008). Conclusions: Approximately half (48 %) of women 'strongly agreed' that they felt prepared for SUI. Women with higher pre-operative preparedness scores were more satisfied, although surgical outcomes did not differ. [ABSTRACT FROM AUTHOR]

Published
2014
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