73,441 research outputs found
A re-evaluation of the milliped genus Motyxia Chamberlin : with a re-diagnosis of the tribe Xystocheirini and remarks on the bioluminescence (Polydesmida: Xystodesmidae)
No full textMotyxia Chamberlin is comprised of eight species of bioluminescent xystocheirine millipeds in which the gonopodal solenomere arises at different positions, from basally and subbasally on the acropodite to being fused with the companion acropodal branch and detaching proximad or near midlength. Previous synonymies of Amplocheir Chamberlin and LuminodeslnllS Loomis and Davenport under Motyxia are confirmed as is its assignment to the tribe Xystocheirini, which is redefined. Component species are 111. Iwnw Chamberlin, the type species, monica Chamberlin, sequoiae (Loomis and Davenport), tularea (Chamberlin), sequoia (Chamberlin), pior Chamberlin, porrecta Causey and Tiemann, and tiemanni Causey. Motyxia sequoia is comprised oftwo races, the nominate and sequoia alia Causey and Tiemann; sequoia ollae Causey and Tiemann is properly a subspecies of tularea. 1I1otyxiapiorform secea is an invalid name without standing in nomenclature, and M. tejona Chamberlin, and M. expansa and exilis, both by Loomis, are placed in synonymy under M. monica, the oldest name for the southernmost species, as Polydesllws dissectus Wood is referrable to Xystocheir Cook. The bioluminescence is a continuous, neon-white glow of the entire dorsal surface including the antennae and legs. Its visibility at night suggests a warning function analogous to aposematic coloration. The phenomenon may observe a circadian rhythm, and controlled photoperiod experimentation may be productive
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
Ralph Vary Chamberlin Papers
No full textBiologist and historian. Correspondence, research notes, scrapbooks and lectures. Research notes on early Mormon and Utah history, the history of education in the United States and Utah, biographical notes on John Rockey Park, and notes on the history of the University of Utah.; Correspondence, sources, and research notes; General notes on education in America and Utah; Notes on John Rockey Park; Notes on the History of the University of Utah; Newspaper research on the University of Utah; Biographical files; Speeches and Lectures; Background; Correspondence, sources, and research notes; Correspondence, A-C; Correspondence, D-F; Correspondence, G-J; Correspondence, K-M; Correspondence, N-P; Correspondence, S-T; Correspondence, U-Z; Correspondence regarding John C. Bennett; Publications of Frederick C. Waite; Diaries of Hosea Stout and S. W. Richards [typescript]; Journal of Erastus Snow [typescript]; Notes on Mormon entry into Great Salt Lake Valley; Samuel Russell notes and writings on Mormon entry into Great Salt Lake Valley; Diary of Ethan Pettit, 1869-1878 [typescript]; Notes on early Utah and Mormon history; General notes on education in America and Utah; Notes on the history of education; Notes on early Mormon education; Notes on early Utah education; "Education in Utah"; Palmer, William R., "Forgotten Chapters of History: Territorial Days Public Schools"; Washington County schools, ca. 1870-1900 [original school records]; St. George Normal School [original records]; Brigham Young Academy; Morgan Commercial College and Normal School; Laws Endowing the University of Utah; "Former Homes of the University of Utah"; "A Western Institution"; "In Retrospect"; Roylance, William G., "Historical Sketch"; "Deseret University of Utah"; "The University of Deseret"; Daybook of the University of Deseret; "The University of Utah"--I; "The University of Utah"--II; "The University of Utah"--III; Notes on John Rockey Park; Seneca County (Ohio) Academy; Heidelberg College (Ohio); Ohio Wesleyan University; New York University; John Rockey Park Scrapbook; Notes on Draper, Utah; Draper, Utah: "The \u27Far West\u27 Neighborhood"; Draper, Utah: "Rockwell\u27s Station Pony Express"; Draper, Utah: Andrew Jackson Allen diary; Journal of John Rockey Park [typescript]; Papers of John Rockey Park [typescript]; Notes on John Rockey Park; Genealogy of John Rockey Park; Notes on the History of the University of Utah; Chronology, 1850-1950; David Robert Allen autobiography and diary [original and typescript]; W. H. Chamberlin diary; Faculty meeting minutes, 1885-1892; Faculty meeting minutes, 1893-1894; Faculty meeting minutes, 1895-1910; Faculty meeting minutes, 1911-1915; Faculty meeting minutes, 1916-1931; Board of Regents Minutes, 1850-1880; Board of Regents Minutes, 1881-1889; Board of Regents Minutes, 1890-1894; Board of Regents Minutes, 1895-1899; Board of Regents Minutes, 1900-1905; Board of Regents Minutes, 1906-1909; Board of Regents Minutes, 1910-1914; Deans Council Minutes, 1916-1950; "The Controversy of 1915"; Notes, c. 1927-1941; Notes on Daily Utah Chronicle,1941-1944; Special interest groups, fraternities, sororities; Societies and class affairs; Student organizations; Honorary and professional societies; Scrapbook on the Controversy of 1915; School of Mines and Engineering; C. Lowell Lees, "The Speech and Theatre Arts Department"; Walter A. Kerr, "Utah\u27s First [Football] Team"; Comparative Religion class notes, 1923; Miscellaneous notes; Newspaper notes; Newspaper research on the University of Utah; Notes, ca. 1850-1859; Notes, ca. 1860-1879; Notes, ca. 1870-1879; Notes, ca. 1880-1890; Notes, ca. 1880-1900; Notes, ca. 1882-1900; Notes, ca. 1892-1900; Biographical files; "Early University Faculty Members"; Biographies, A-C; Aber, William M.; Allen, David Robert; Appleby, William I.; Armstrong, Ike J.; Arnoldson, Torild; Augsburg, D. R.; Babcock, Maud May; Barfoot, J. L.; Benedict, Francis Denton; Benedict, J. M.; Bennion, Alfred, Jr.; Bennion, Milton; Caine, John T., Jr.; Calder, David 0.; Careless, George; Cobb, James Thornton; Coray, George Q.; Couch, Sherman R.; Cowles, Leroy Eugene; Cummings, Byron; Bennett, John C.; Bishop, Francis Marion; Biographies, D-L; Daines, Luther Lyman; Fitzpatrick, Thomas M.; Fox, Jesse W.; Hardy, M. H.; Holmes, Harvey R.; Jensen, A. C.; Jones, Marcus E.; Kerr, Walter A.; Kerr, William J.; Kesler, Frederick, Jr.; Kingsbury, Joesph T.; Leary, William H.; Lewis, T. D.; Lyman, Richard R.; Biographies, M-N; Maddock, Joseph H.; Maeser, Karl G.; Marshall, George M.; Marshall, H. Leo; Mathews, George Raynolds; Merrill, Joseph F.; Miller, Newton; Moench, Louis F.; Montgomery, Henry; Morgan, John; Morgan, Nicholas G.; Neff, Sherman Brown; Nielsen, Einar; Norgren, Nelson H.; Biographies, O-S; Parmelee, Theron S.; Pack, Frederick J.; Paul, J. H.; Peterson, Vadal; Phelps, William Wines; Pratt, Orson; Rawlins, Joseph L.; Reynolds, Frederick W.; Richards, Samuel Whitney; Riggs, Obadiah Higbee; Roberts, Brigham H.; Schleckman, Karl; Seixas, Joshua; Snow, Zerubbabel; Spencer, Orson; Stephens, Evans; Stewart, William M.; Stookey, Walter M.; Stout, Hosea; Sugden, John W.; Ottinger, George M.; Thomas, George; Biographies, T-Z; Talmage, James E.; Toronto, Joseph; Welch, Charles; Wells, Daniel H.; Whiting, C. A.; Widtsoe, John A.; Woodbury, Angus M.; Wright, Walter King; Speeches and Lectures; "Astronomy: The System of the Stars"; "The Biological Basis of Human Behavior"; "The Biological Front"; "The Conflict Between Science and Religion"; "Charles Darwin"; "Dewey--Arnold--Browning"; "The Early Hebrew Conception of the Universe"; "Europe on the Nazi Forge"; "Heredity and Environment," November 1930 [radio talk]; "Thomas Henry Huxley"; "Life in the Waters of Great Salt Lake"; Mexican archaeology--various notes and writings; "Mutual Aid"; "Sir Isaac Newton"; "Our Heritage From the Past, Our Debt to the Future"; "Our Social Heritage"; "Science and Reality"; "The Scientific Spirit"; "Since Darwin\u27s Day"; "Some Recent Advances in Zoology"; "Trends in Cultural Education"; "What is Mathematical Logic?"; "The World View of the Old Testament"; Miscellaneou
Ralph V. Chamberlin, Ph.D.
No full textDr Chamberlin was born in Salt Lake City, Utah in 1879. Dr Chamberlain received his B.S. degree from the University of Utah in 1898 and his Ph.D. in zoology from Cornell in 1905. Dr. Chamberlin taught high school from 1898 to 1902 and was the Goldwin Smith Fellow in Zoology at Cornell from 1902-1904. Dr Chamberlin came to the University as Assistant Professor of Natural History (1904) and Professor of Biology (1908). Dr Chamberlin was instrumental in the organization of the two-year school of medical school and was Dean from 1905-1907. Dr Chamberlin was Professor of Zoology at Brigham Young University from 1908-1911. Dr Chamberlin was Harrison Fellow and Lecturer in Zoology at the University of Pennsylvania from 1911-1913. Dr Chamberlin was Curator of the Museum of Comparative Zoology at Harvard University from 1913-1926. Dr Chamberlin returned to the University in 1926 as Professor of Zoology and Head of the Division of Biology until his retirement from active teaching in 1948 as Professor Emeritus. Dr Chamberlin received an honorary Sc.D. from the University of Utah in 1942. Dr Chamberlin authored the book, The University of Utah: The First Hundred Years, published in 1960. Dr Chamberlin died in 1967
Ralph V. Chamberlin, Ph.D.
No full textDr Chamberlin was born in Salt Lake City, Utah in 1879. Dr Chamberlain received his B.S. degree from the University of Utah in 1898 and his Ph.D. in zoology from Cornell in 1905. Dr. Chamberlin taught high school from 1898 to 1902 and was the Goldwin Smith Fellow in Zoology at Cornell from 1902-1904. Dr Chamberlin came to the University as Assistant Professor of Natural History (1904) and Professor of Biology (1908). Dr Chamberlin was instrumental in the organization of the two-year school of medical school and was Dean from 1905-1907. Dr Chamberlin was Professor of Zoology at Brigham Young University from 1908-1911. Dr Chamberlin was Harrison Fellow and Lecturer in Zoology at the University of Pennsylvania from 1911-1913. Dr Chamberlin was Curator of the Museum of Comparative Zoology at Harvard University from 1913-1926. Dr Chamberlin returned to the University in 1926 as Professor of Zoology and Head of the Division of Biology until his retirement from active teaching in 1948 as Professor Emeritus. Dr Chamberlin received an honorary Sc.D. from the University of Utah in 1942. Dr Chamberlin authored the book, The University of Utah: The First Hundred Years, published in 1960. Dr Chamberlin died in 1967
Measurement of the CP-violating phase \phi s in Bs->J/\psi\pi+\pi- decays
No full textMeasurement of the mixing-induced CP-violating phase phi_s in Bs decays is of prime importance in probing new physics. Here 7421 +/- 105 signal events from the dominantly CP-odd final state J/\psi pi+ pi- are selected in 1/fb of pp collision data collected at sqrt{s} = 7 TeV with the LHCb detector. A time-dependent fit to the data yields a value of phi_s=-0.019^{+0.173+0.004}_{-0.174-0.003} rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found
Observations of Bºs→ψ(2S)η and Bº(s)→ψ(2S)π+π- decays
No full textFirst observations of the B0s
→ψ(2S)η, B0 →ψ(2S)π
+
π
− and B0s
→ψ(2S)π
+
π
− decays are made
using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment in
proton–proton collisions at a centre-of-mass energy of
√
s = 7 TeV. The ratios of the branching fractions
of each of the ψ(2S) modes with respect to the corresponding J/ψ decays are
B(B0s
→ψ(2S)η)
÷
B(B0s
→J/ψη)
= 0.83± 0.14 (stat)±0.12 (syst) ±0.02 (B),
;
B(B0→ψ(2S)π
+
π
−
)
÷
B(B0→J/ψπ
+
π
−
)
= 0.56± 0.07 (stat)±0.05 (syst)± 0.01 (B),
;
B(B0s
→ψ(2S)π
+
π
−
)
÷
B(B0s
→J/ψπ
+
π
−
)
= 0.34± 0.04 (stat)±0.03 (syst)± 0.01 (B),
where the third uncertainty corresponds to the uncertainties of the dilepton branching fractions of the J/ψ
and ψ(2S) meson decays
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
The spiders of Alaska
No full textjournal articleThis paper is the result p rimarily of a study of the h igh ly important arachnid collections made by Dr. Joseph C. Chamberlin in Alaska during the summer seasons of 1943, 1944 and 1945 d urin g which he was engaged for the U. S. Department of A g riculture in entomological investigation, ch iefly in the Matanuska Valley with headquarters at the Univ ersity of Alaska. In addition we include data from a study of a collection made by R. D. Hamilton in 1946, a study made possible through the courtesy of Dr. Willis J . Gertsch of the American Museum of N atural History where this material is deposited unless otherwise noted, while the J . C. Chamberlin collection is deposited at the University of Utah. It has been thought desirable to include in this report all past records of spiders from Alaska as a whole. The total number of spiders listed is 247, of which 42 are described as new
Measurement of the branching fraction
No full textThe B
0
s
→ J/ψK
0
S
branching fraction is measured in a data sample corresponding to 0.41 fb−1
of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to
the penguin contributions affecting the sin 2β measurement from B
0
→ J/ψK
0
S
. The time-integrated
branching fraction is measured to be B(B
0
s
→ J/ψK
0
S
) = (1.83±0.28)×10−5
. This is the most precise
measurement to date
- …
