36,589 research outputs found

    OAO-2 observations of C III 1909 A line in gamma 2 Velorum

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    The C III 1909 A emission line in gamma 2 Velorum was observed over a period of 24 hours in an attempt to find short period time variability. Analysis of this data found no periods in the range of 0.5 to 200 minutes, and placed an upper limit of 3% on the amplitude of the stellar pulsations. Improved spectral resolution data for this line was obtained by offsetting the OAO-2 pointing in steps of 15 seconds of arc. The line profile derived by combining this offset data with the slit function shows a definite asymmetry. Although the improved resolution gives results which are barely sufficient for comparison with the prediction from model envelopes, some information concerning the abundance of carbon and the physical conditions of the envelope can be gained

    Stopping Sexual Harassment in the Empire State: Past, Present, and a Possible Future

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    This report maps current patterns of workplace sexual harassment and their impact in New York State. It also provides a broader frame for understanding how efforts to confront sexual and gender-based harassment and assault have evolved over time, and charts possible directions for future organizing, policy, and research in New York and beyond. The findings presented here are drawn from the 2018 Empire State Poll, an annual statewide survey of 800 New Yorkers conducted by the Cornell Survey Research Institute. Questions added to the survey reflecting existing legal definitions of workplace sexual harassment reveal the following: 10.9 percent of New York residents have experienced quid pro quo workplace sexual harassment, and 21.9 percent have experienced workplace sexual harassment that created a hostile work environment; 31.1 percent of women and 18.9 percent of men have experienced at least one of these forms of harassment. 13.9 percent of people of color and people of Hispanic origin have experienced quid pro quo workplace sexual harassment, as opposed to 8.5 percent of non-Hispanic whites. 38.9 percent of those experiencing at least one form of workplace sexual harassment say it impacted their work or careers; 48.9 percent who experienced quid pro quo harassment reported such an impact. 83.4 percent of New York residents think their leaders should do more to address workplace sexual harassment. There is notable variation by politics and ideology, but regardless of worldview, strong majorities think leaders should do more. In addition to sharing the survey findings, the report discusses experiences and responses of survivors and how they are shaped by different identities and relations of power. It highlights black women’s leadership in propelling wide-reaching shifts in law and culture; efforts initiated by diverse survivors to effect change in specific industries; and culture change work engaging men and women as allies

    Commuting quantities and exceptional W-algebras

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    Sets of commuting charges constructed from the current of a U(1) Kac-Moody algebra are found. There exists a set S_n of such charges for each positive integer n > 1; the corresponding value of the central charge in the Feigin-Fuchs realization of the stress tensor is c = 13-6n-6/n. The charges in each series can be written in terms of the generators of an exceptional W-algebra.Comment: 27 pages, KCL-TH-92-

    An eco-solution for track & trace of goods and third party logistics

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    This paper presents a new economic cost-effective solution known as the Web and telephony based method for tracking and tracing of goods and small and medium sized third party logistic providers. Considering that these companies usually operate on very flat margins, a comparison is made of the available track and trace technologies like GPS, mobile phone approximated GPS and Java based cell tracking in terms of costs, operating risks, and other evaluation criteria

    Evidence for A Two-dimensional Quantum Wigner Solid in Zero Magnetic Field

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    We report the first experimental observation of a characteristic nonlinear threshold behavior from dc dynamical response as an evidence for a Wigner crystallization in high-purity GaAs 2D hole systems in zero magnetic field. The system under increasing current drive exhibits voltage oscillations with negative differential resistance. They confirm the coexistence of a moving crystal along with striped edge states as observed for electrons on helium surfaces. However, the threshold is well below the typical classical levels due to a different pinning and depinning mechanism that is possibly related to a quantum process
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