84,089 research outputs found

    Oligonychus litchii is an important agricultural pest in Taiwan (Acar: Tetranychidae)

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    Oligonychus litchii was first reported in 1989 by Lo and Ho. The known host plants of this mite have rapidly increased to 34 plants in 17 families, including fruit trees, ornamental plants, and some wild trees. It has become the key mite pest of guava, litchi, longyan, loquat, and wax apple. In the opinion of the author, the importance of this spider mite to agriculture in Taiwan is second only to Tetanychus kanzawai Kishda, T. urticae Koch, and Panonychus citri (McGregor)

    T??? truy???n th?? ?????n ti???u thuy???t T??? T??m: S??? ph??t tri???n c???a ti???u thuy???t v??n xu??i ??? Vi??t Nam

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    This is a translation of "From Verse Narrative to Novel: The Development of Prose Fiction in Vietnam" which is also available in Humboldt Digital Scholar.Ti???u thuy???t ???? xu???t hi???n t???i mi???n Nam Vi???t Nam tr?????c khi Ho??ng Ng???c Ph??ch xu???t b???n quy???n T??? T??m t???i Hanoi n??m 1925 (Xin xem b??i ???Ti???u thuy???t xu???t hi???n t???i Nam K?????? c???a John C. Schafer v?? Th??? Uy??n). Tuy nhi??n t??c ph???m n??y ???? l??m x??n xao d?? lu???n. Hai t??c gi??? b??i n??y gi???i th??ch v?? sao T??? T??m ???? ???nh h?????ng ?????n qu???n ch??ng m???t c??ch s??u r???ng nh?? v???y. Kh??c h???n v???i c??c ti???u thuy???t mi???n Nam, T??? T??m kh??ng gi???ng truy???n th??, m???t th??? lo???i v??n ch????ng r???t ph??? th??ng v??o th??? k??? 19 v?? ?????u th??? k??? 20. Truy???n th?? mang r???t nhi???u t??nh c??ch c???a truy???n ???romance??? m?? L?? Minh Th???ng d???ch l?? ???truy???n h?? c???u???. ??? t???i Ph??p v?? Anh, truy???n ???romance??? ?????n tr?????c ti???u thuy???t c??ng gi???ng nh?? ??? Vi???t Nam truy???n th?? ?????n tr?????c ti???u thuy???t b???ng v???n v??n. Hai t??c gi??? d??ng ph????ng ph??p m?? Lennard Davis ???? d??ng ????? gi???i th??ch ti???u thuy???t ??? ??u ch??u ???? t??ch r???i ra kh???i romance nh?? th??? n??o ????? gi???i th??ch T??? T??m ???? t??ch r???i ra kh???i c??c truy???n th?? nh?? L???c V??n Ti??n c???a Nguy???n ????nh Chi???u. Hai t??c gi??? n??u ra vi???c T??? T??m ???????c ?????t trong c??ng m???t th???i gian v?? kh??ng gian v???i t??c gi??? trong khi L???c V??n Ti??n ???????c ?????t v??o m???t ho??n c???nh xa l??? v?? ???? ???????c l?? t?????ng h??a. V?? d??? th??? hai l?? T??? T??m nh???n m???nh ?????n nh???ng m???i t??nh b??? c???m ??o??n, trong khi L???c V??n Ti??n, gi???ng nh?? nhi???u chuy???n romance kh??c, chu???ng s??? gi??? g??n ?????c h???nh v?? l??ng trinh b???ch. ??p d???ng ph????ng ph??p c???a Davis, hai t??c gi??? kh??m ph?? ra c??c kh??c bi???t r???t r??? r??ng gi???a T??? T??m v?? L???c V??n Ti??n. H??? c??ng n??u ra Ho??ng Ng???c Ph??ch ???? b??? ???nh h?????ng b???i cu???n La dame aux cam??lias c???a Alexandre Dumas fils v?? c??c ti???u thuy???t ?????y t??nh y??u ???y m??? c???a c??c v??n s?? ??u ch??u nh?? th??? n??o khi s??ng t??c cu???n T??? T??m.The research for this article was assisted by a grant from the Joint Committee on Southeast Asia of the Social Science Research Council and the American Council of Learned Societies. A Luce Junior Faculty Fellowship enabled Schafer to use the John M. Echols Collection on Southeast Asia at Cornell University

    Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV

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    The 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 1961 Kampong Bukit Ho Swee fire and the making of modern Singapore

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    By 1970, Singapore’s urban landscape was dominated by high-rise blocks of planned public housing built by the People’s Action Party government, signifying the establishment of a high modernist nation-state. A decade earlier, the margins of the City had been dominated by kampongs, home to semi-autonomous communities of low-income Chinese families which freely built, and rebuilt, unauthorised wooden houses. This change was not merely one of housing but belied a more fundamental realignment of state-society relations in the 1960s. Relocated in Housing and Development Board flats, urban kampong families were progressively integrated into the social fabric of the emergent nation-state. This study examines the pivotal role of an event, the great Kampong Bukit Ho Swee fire of 1961, in bringing about this transformation. The redevelopment of the fire site in the aftermath of the calamity brought to completion the British colonial regime’s ‘emergency’ programmes of resettling urban kampong dwellers in planned accommodation, in particular, of building emergency public housing on the sites of major fires in the 1950s. The PAP’s far greater political resolve, and the timing of and state of emergency occasioned by the scale of the 1961 disaster, enabled the government to rehouse the Bukit Ho Swee fire victims in emergency housing in record time. This in turn provided the HDB with a strategic platform for clearing other kampongs and for transforming their residents into model citizens of the nation-state. The 1961 fire’s symbolic usefulness extended into the 1980s and beyond, in sanctioning the PAP’s new housing redevelopment schemes. The official account of the inferno has also become politically useful for the government of today for disciplining a new generation of Singaporeans against taking the nation’s progress for granted. Against these exalted claims of the fire’s role in the Singapore Story, this study also examines the degree of actual change and continuity in the social and economic lives of the people of Bukit Ho Swee after the inferno. In some crucial ways, the residents continued to occupy a marginal place in society while pondering, too, over the unresolved question of the cause of the fire. These continuities of everyday life reflect the ambivalence with which the citizenry regarded the high modernist state in contemporary Singapore

    Auditory Perceptual History Is Propagated through Alpha Oscillations

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    Using novel behavioral methods, Ho et al. show that perceptual decisions in audition are rhythmically biased by previous stimuli presented up to two trials back. The oscillations at ∼9 Hz occurred only when a stimulus had previously been presented to the same ear, strongly implicating alpha in predictive perception and working memory formation

    Cooling rates of neutron stars and the young neutron star in the Cassiopeia A supernova remnant

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    We explore the thermal state of the neutron star in the Cassiopeia A supernova remnant using the recent result of Ho &amp; Heinke that the thermal radiation of this star is well described by a carbon atmosphere model and the emission comes from the entire stellar surface. Starting from neutron star cooling theory, we formulate a robust method to extract neutrino cooling rates of thermally relaxed stars at the neutrino cooling stage from observations of thermal surface radiation. We show how to compare these rates with the rates of standard candles – stars with non-superfluid nucleon cores cooling slowly via the modified Urca process. We find that the internal temperature of standard candles is a well-defined function of the stellar compactness parameter x=rg/R, irrespective of the equation of state of neutron star matter (R and rg are circumferential and gravitational radii, respectively). We demonstrate that the data on the Cassiopeia A neutron star can be explained in terms of three parameters: f?, the neutrino cooling efficiency with respect to the standard candle; the compactness x; and the amount of light elements in the heat-blanketing envelope. For an ordinary (iron) heat-blanketing envelope or a low-mass (? 10?13 M?) carbon envelope, we find the efficiency f?? 1 (standard cooling) for x? 0.5 and f?? 0.02 (slower cooling) for a maximum compactness x? 0.7. A heat blanket containing the maximum mass (?10?8 M?) of light elements increases f? by a factor of 50. We also examine the (unlikely) possibility that the star is still thermally non-relaxe

    "Hi???n t?????ng Tr???nh C??ng S??n"

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    T??c gi??? cho r???ng c?? ??t nh???t b???y l?? do gi???i th??ch hi???n t?????ng Tr???nh C??ng S??n: s??? m???i m??? trong nh???ng b???n t??nh ca ban ?????u c???a ??ng, vi???c ??ng g???i l??n nh???ng ????? t??i Ph???t gi??o, ho??n c???nh tr??nh di???n ?????c bi???t c???a mi???n Nam Vi???t Nam v??o nh???ng n??m chi???n tranh, c?? t??nh v?? con ng?????i ?????c bi???t c???a Tr???nh C??ng S??n, vi???c ??ng kh??m ph?? ra ca s?? t??i n??ng Kh??nh Ly, s??? xu???t hi???n c???a m??y cassette, v?? kh??? n??ng th??ch nghi c???a Tr???nh C??ng S??n v???i ho??n c???nh ch??nh tr??? m???i sau cu???c chi???n

    Study of Ho-doped Bi2Te3 topological insulator thin films

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    This publication arises from research funded by the John Fell Oxford University Press (OUP) Research Fund and the Research Complex at Harwell is acknowledged for their hospitality. This work was supported by a DARPA MESO project (No. N66001-11-1-4105). S.E.H. was supported by the VPGE (Stanford University). L.C.M. and A.A.B. acknowledge partial financial support from EPSRC (UK) through a Doctoral Training Award. Diamond Light Source is acknowledged for beamtime on I10 (proposal SI10207).Breaking time-reversal symmetry through magnetic doping of topological insulators has been identified as a key strategy for unlocking exotic physical states. Here, we report the growth of Bi2Te3 thin films doped with the highest magnetic moment element Ho. Diffraction studies demonstrate high quality films for up to 21% Ho incorporation. Superconducting quantum interference device magnetometry reveals paramagnetism down to 2 K with an effective magnetic moment of ∼5 μB/Ho. Angle-resolved photoemission spectroscopy shows that the topological surface state remains intact with Ho doping, consistent with the material's paramagnetic state. The large saturation moment achieved makes these films useful for incorporation into heterostructures, whereby magnetic order can be introduced via interfacial coupling.Peer reviewe
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