175,856 research outputs found

    Outcome of surgical decompression in resistant de Quervain tenosynovitis

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    Introductions: De Quervain tenosynovitis is a common cause of functional impairment. Steroid injection has good result but significant numbers of cases develop resistance requiring surgical decompression. This study assesses the outcome of surgery. Methods: Symptomatic de Quervaint tenosynovitis cases resistant to conservative treatment that underwent surgical decompression and postoperative thumb immobilization using thumb spica splint cast during four and half years were analyzed. They were followed for at least three months for clinical and functional outcome. Patient demography, visual analogue score (VAS) and complications were analyzed descriptively. Results: There were 34 cases of de Quervaint tenosynovitis, mean age 42±16 years, and female 88.2%. Treatment was successful in all cases. The mean VAS score reduced to 0.5 from 6.82, p-value <0.01. Complication occurred in one case. Conclusions: Surgical decompression of de Quervain tenosynovitis was safe and effective in cases resistant to conservative treatment. Keywords: corticosteroid injection CSI, resistant de Quervain tenosynovitis, surgical decompression, thumb spica splint cas

    Lattice Design in High-energy Particle Accelerators

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    This lecture gives an introduction into the design of high-energy storage ring lattices. Applying the formalism that has been established in transverse beam optics, the basic principles of the development of a magnet lattice are explained and the characteristics of the resulting magnet structure are discussed. The periodic assembly of a storage ring cell with its boundary conditions concerning stability and scaling of the beam optics parameters is addressed as well as special lattice insertions such asdrifts, mini beta sections, dispersion suppressors, etc. In addition to the exact calculations that are indispensable for a rigorous treatment of the matter, scaling rules are shown and simple rules of thumb are included that enable the lattice designer to do the first estimates and get the basic numbers 'on the back of an envelope'.Comment: 40 pages, contribution to the CAS - CERN Accelerator School: Advanced Accelerator Physics Course, Trondheim, Norway, 18-29 Aug 2013. arXiv admin note: substantial text overlap with arXiv:1303.651

    The Personal Equation in Motor Ability

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    In order to try out experimentally the common notion, that an individual will show a constant behaviour as to speed and accuracy in all kinds of motor performance - within his group - a series of reaction and motor tests were given to sophomores. The tests were: (1) Tapping in group (with pencil). (2) Individual tapping (on telegraph key). (3) Counting numbers orally. (4) Writing numbers. (5) Counting and writing as one combined activity. Simple bodily reactions of (6) the lips, (7) the jaws, (8) the index finger, (9) the head, (10) the elbow, (11) the thumb, (12) the foot. (13) Ergograph test

    The Unexpected Occurrence of Aleurone Colors in F\u3csub\u3e2\u3c/sub\u3e of a Cross Between Non-Colored Varieties of Maize

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    Before the Mendelian methods of analysis became available, considerable wonder would doubtless have been excited by the mysterious appearance in F2 of one colored grain-purple or red-to every five or six white ones in case of a maize cross, both parents and F, of which had only white grains. An occurrence of this sort has recently been noted in one of my maize cultures and the F2 numbers are explained here as a trihybrid or tetrahybrid ratio. The crosses in question were made primarily for a study of size inheritance and fairly large numbers have been grown. The varieties concerned are two dwarfs of distinctly different types, Tom Thumb pop and California Rice pop, and a tall type Missouri dent. The facts with reference to aleurone color are these: Tom Thumb pop, a white corn (i. e., having non-colored aleurone), was crossed with Missouri dent, also a white corn. Three generations of hybrid plants four generations for aleurone and other endosperm characters- have been grown without the appearance of any but white grains. The same white-seeded Missouri dent was also crossed with the white-seeded California pop. The three hybrid generations grown to date have shown no aleurone color. Furthermore, when the same white Tom Thumb pop was crossed with the same white California pop, only white grains appeared in F,. But both of the two ears containing F2 seeds-the only ones that have been produced as yet-had a sprinkling of both purple and red grains, too many to be explained as due to care- less guarding against foreign pollen and too few to be accounted for by any simple monohybrid or dihybrid formul

    The Unexpected Occurrence of Aleurone Colors in F\u3csub\u3e2\u3c/sub\u3e of a Cross Between Non-Colored Varieties of Maize

    Get PDF
    Before the Mendelian methods of analysis became available, considerable wonder would doubtless have been excited by the mysterious appearance in F2 of one colored grain-purple or red-to every five or six white ones in case of a maize cross, both parents and F, of which had only white grains. An occurrence of this sort has recently been noted in one of my maize cultures and the F2 numbers are explained here as a trihybrid or tetrahybrid ratio. The crosses in question were made primarily for a study of size inheritance and fairly large numbers have been grown. The varieties concerned are two dwarfs of distinctly different types, Tom Thumb pop and California Rice pop, and a tall type Missouri dent. The facts with reference to aleurone color are these: Tom Thumb pop, a white corn (i. e., having non-colored aleurone), was crossed with Missouri dent, also a white corn. Three generations of hybrid plants four generations for aleurone and other endosperm characters- have been grown without the appearance of any but white grains. The same white-seeded Missouri dent was also crossed with the white-seeded California pop. The three hybrid generations grown to date have shown no aleurone color. Furthermore, when the same white Tom Thumb pop was crossed with the same white California pop, only white grains appeared in F,. But both of the two ears containing F2 seeds-the only ones that have been produced as yet-had a sprinkling of both purple and red grains, too many to be explained as due to care- less guarding against foreign pollen and too few to be accounted for by any simple monohybrid or dihybrid formul

    The Influence of Type of Job, Income, Education, and Religiosity to Vasectomy Accptors Quality Of Life

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    Introduction: in East Java in 2013, the percentage of vasectomy users was 0.12% . Purpose: to investigate the influence of employment, income, education, and religiosity to vasectomy acceptors’ quality of life. Method: This research employed quantitative with past ex facto approached involved 30 population numbers. Purposive sampling technique and total sampling with rule of thumb were used. The instrument used a questionnaire with likert scale and WHOQOL questioner. Results: There is significant influence of education and religiosity and no influence of work and income to the quality of life of vasectomy acceptor

    A rule of thumb for riffle shuffling

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    We study how many riffle shuffles are required to mix n cards if only certain features of the deck are of interest, e.g. suits disregarded or only the colors of interest. For these features, the number of shuffles drops from 3/2 log_2(n) to log_2(n). We derive closed formulae and an asymptotic `rule of thumb' formula which is remarkably accurate.Comment: 27 pages, 5 table
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