2,121 research outputs found
Firm R&D, Absorptive Capacity and Learning by Exporting: Firm-level Evidence from China
No full textThe absorptive capacity of firms developed through R&D promotes learning by exporting. In this paper, we estimate the instantaneous and long-run productivity effects of exporting on the universe of Chinese manufacturing firms. We find that exporting has very different productivity effects for firms with different pre-export R&D status. It has large and lasting productivity effects for firms with pre-export R&D, while it has little effects for firms without pre-export R&D. Furthermore, the effect of exporting increases with the number of years of pre-export R&D investment.Business, FinanceEconomicsInternational RelationsSSCI0ARTICLE91131-11453
Corrigendum to Programmed cell death in the lithium pilocarpine model: Evidence for NMDA receptor and ceramide-mediated mechanisms [Brain Dev 30 (2008) 513-519] (DOI:10.1016-j.braindev.2008.01.002)
No full text[No abstract available]Mikati MA, 2008, BRAIN DEV-JPN, V30, P513, DOI 10.1016-j.braindev.2008.01.0020
The developmental morphology of Leea guineensis. I. Vegetative development
No full textPT: J; CR: FUCHS C, 1963, STAIN TECHNOL, V38, P141 GERRATH JM, 1990, BOT GAZ, V151, P210 GOULD KS, 1986, CAN J BOT, V64, P1268 HALLE F, 1978, TROPICAL TREES FORES LACROIX CR, 1989, AM J BOT, V76, P1203 MEICENHEIMER RD, 1983, CAN J BOT, V61, P3430 MERRILL EK, 1986, CAN J BOT, V64, P2650 NAIR NC, 1968, J INDIAN BOT SOC, V47, P193 POSTEK MT, 1982, AM J BOT, V69, P556 RIDSDALE CE, 1974, BLUMEA, V22, P57 ROHWEDER O, 1983, SAMENPFLANZEN MORPHO RUTISHAUSER R, 1985, BOTANISCHE JB SYSTEM, V107, P415 SATTLER R, 1974, PHYTOMORPHOLOGY, V24, P22 SATTLER R, 1988, AM J BOT, V75, P1606 SATTLER R, 1988, ASPECTS FLORAL DEV, P1 SUGIYAMA M, 1988, AM J BOT, V75, P1598 TOMLINSON PB, 1982, AXIOMS PRINCIPLES PL, P162 TOMLINSON PB, 1987, ANNU REV ECOL SYST, V18, P1 WILD H, 1966, FLORA ZAMBESIACA 2, V2, P492; NR: 19; TC: 4; J9: BOT GAZ; PG: 6; GA: DU901Source type: Electronic(1
The Cryosphere Discussions
No full textwww.geosci-model-dev-discuss.net/6/3003/2013/ doi:10.5194/gmdd-6-3003-2013 © Author(s) 2013. CC Attribution 3.0 License
HIGH-STABILITY BIMORPH SCANNING TUNNELING MICROSCOPE
No full textPT: J; CR: BINNIG G, 1983, SURF SCI, V126, P236 BINNIG G, 1986, IBM J RES DEV, V30, P355 BINNIG G, 1986, PHYS REV LETT, V56, P930 BRYANT A, 1986, APPL PHYS LETT, V48, P832 DEMUTH JE, 1986, J VAC SCI TECHNOL 2, V4, P1320 DRAKE B, 1986, REV SCI INSTRUM, V57, P441 DURIG U, 1986, IBM J RES DEV, V30, P478 GERBER C, 1986, REV SCI INSTRUM, V57, P221 GIMZEWSKI JK, 1985, PHYS REV LETT, V55, P951 JERICHO MH, 1987, REV SCI INSTRUM, V58, P1349 MAMIN HJ, 1985, REV SCI INSTRUM, V56, P2168 MAMIN HJ, 1986, IBM J RES DEV, V30, P492 MCKENNA R, 1987, HONOURS PROJECT DALH MURALT P, 1986, IBM J RES DEV, V30, P443 SMITH DPE, 1986, APPL PHYS LETT, V49, P1166 VANDEWALLE GFA, 1985, REV SCI INSTRUM, V56, P1573; NR: 16; TC: 27; J9: REV SCI INSTR; PG: 6; GA: J6076Source type: Electronic(1
R-parity violating supersymmetry at IceCube
No full textAbstractThe presence of R-parity violating (RPV) supersymmetric interactions involving high-energy neutrinos can lead to resonant production of TeV-scale squarks inside large-volume neutrino detectors. Using the ultra-high energy neutrino events observed recently at the IceCube, with the fact that for a given power-law flux of astrophysical neutrinos, there is no statistically significant deviation in the current data from the Standard Model expectations, we derive robust upper limits on the RPV couplings as a function of the resonantly-produced squark mass, independent of the other unknown model parameters, as long as the squarks decay dominantly to 2-body final states involving leptons and quarks through the RPV couplings. With more statistics, we expect these limits to be comparable/complementary to the existing limits from direct collider searches and other low-energy processes
HERMITE-HADAMARD TYPE INEQUALITIES FOR PREINVEX FUNCTIONS WITH APPLICATIONS
Full text linkIn this article, we establish new Hermite-Hadamard Type inequalities for functions whose first derivative in absolute value are preinvex. Further, we give some application of our obtained results to some special means of real numbers. Moreover, we discuss several special cases of the results obtained in this paper.BHU-UGC Non-NET fellowship [R/Dev./Sch./UGC Non-Net Fellowship/2022-23/58420]IoE Scheme [6031]The first author is financially supported by BHU-UGC Non-NET fellowship R/Dev./Sch./UGC Non-Net Fellowship/2022-23/58420. The second author is financially supported by Research Grant for Faculty (IoE Scheme) under Dev. Scheme NO. 6031
The developmental morphology of Leea guineensis. II. Floral development
No full textPT: J; CR: BENNEK C, 1958, BOT JB SYST, V77, P423 BUGNON F, 1953, PUBLICATION U DIJON, V11 CRONQUIST A, 1981, INTEGRATED SYSTEM CL CRONQUIST A, 1988, EVOLUTION CLASSIFICA DAHLGREN RMT, 1980, BOTANICAL J LINNEAN, V80, P91 ERDTMAN G, 1966, POLLEN MORPHOLOGY PL, V1 GAGNEPAIN MF, 1910, B SOC BOT FR, V57, P331 GERRATH JM, 1988, ASPECTS FLORAL DEV, P121 GERRATH JM, 1988, CAN J BOT, V66, P1334 GERRATH JM, 1988, CAN J BOT, V66, P209 GERRATH JM, 1988, THESIS U GUELPH GUEL GERRATH JM, 1989, CAN J BOT, V67, P1356 GERRATH JM, 1989, CAN J BOT, V67, P2371 GERRATH JM, 1989, CAN J BOT, V67, P803 HEYWOOD VH, 1978, FLOWERING PLANTS WOR LACROIX CR, 1990, BOT GAZ, V151, P204 LATIFF A, 1984, 4 U KEB COLL WORK PA, P33 MEDAN D, 1988, ASPECTS FLORAL DEV, P133 NAIR NC, 1957, WILD BOT NOT, V110, P160 NAIR NC, 1968, J INDIAN BOT SOC, V47, P193 POSLUSZNY U, 1980, CAN J BOT, V58, P2491 POSLUSZNY U, 1986, CAN J BOT, V64, P1620 RISDALE CE, 1974, BLUMEA, V22, P57 SATTLER R, 1973, ORGANOGENESIS FLOWER SMITH AC, 1985, FLORA VITIENSIS NOVA, V3, P712 SUSSENGUTH K, 1953, NATURLICHEN PFLANZ D, V20, P372 TARNAVSCHI IT, 1968, POLLEN SPORES, V10, P221 TOELKEN H, 1983, FLOWERING PLANTS AUS, P227 WILD H, 1966, FLORA ZAMBESIACA 2, V2, P492; NR: 29; TC: 6; J9: BOT GAZ; PG: 11; GA: DU901Source type: Electronic(1
Photon-bunching in ground-based submillimeter-wave astronomy
No full textDESHIMA (the Deep Spectroscopic High-Redshift Mapper) is a 347 channel superconducting spectrometer with spectral resolution R =500 that operates in the range of 220GHz to 440GHz and can therefore accurately measure the frequency of spectral lines in order to calculate redshift z.This report investigates the sensitivity of DESHIMA-like spectrometers by investigating photon noise due to Poisson and bunching effects. It gives a broad overview of photon statistics and explains, through an analogous model, that photon bunching occurs due to an underlying change in the probabilistics, rather than the act of detecting itself. After that I investigate photon and quasiparticle recombination noise for a DESHIMA-like spectrometer with Lorentzian filters and find a closed form equation for NEP per channel for a constant power spectral density arriving at the filters.Previously the bandwidth of the filters was assumed to be negligible, resulting in an overestimation of the bunching. Because the photons that are impinging on the detector span a bigger bandwidth, the bunching is a factor of π/2 smaller than previously approximated.This NEPτ is defined at an integration time of τ=0.5s. For other integration times this is scalable, however this will only hold while the integration time is much bigger than the coherence time τ≫tcoh. Because of the correlation between photons arriving shorter than a coherence time apart, the scaling of the NEPτ drops in cases when τ≫̸tcoh.Finally I propose and describe modifications to the sensitivity model DESHIMA uses. The following features have been be improved and added:- Integrate over the entire power spectrum when calculating photon noise- Use arbritatry filter designs loaded from a file- Improve estimations of the quantities that express sensitivityI compare the proposed modifications to the old model, which has previously been compared with measurement results, and use it to validate the changes. Other than the previously mentioned factor of π/2 for the bunching term and the smoothing out in local extrema, the modified simulation results are similar to the old model. This is because the Lorentzian filters have a small bandwidth ν≫Δν, such that the previous narrowband approximation held for most non-extreme cases.https://joristiebosch.github.io/thesis/ Interactive version available https://github.com/deshima-dev/deshima-sensitivity Python model described in ThesisDESHIMAApplied Physic
A role for SUMO modification in transcriptional repression and activation
Full text linkSince the discovery of the SUMO (small ubiquitin-related modifier) family of proteins just over a decade ago, a plethora of substrates have been uncovered including many regulators of transcription. Conjugation of SUMO to target proteins has generally been considered as a repressive modification. However, there are now a growing number of examples where SUMOylation has been shown to activate transcription. Here, we discuss whether there is something intrinsically repressive about SUMOylation, or if the outcome of this modification in the context of transcription will prove to be largely substrate-dependent. We highlight some of the technical challenges that will be faced by attempting to answer this question
- …
