Search results for "Oise"
showing 10 items of 1967 documents
Puhe pullataikinassa : toiminnallinen S2-opetus ja opettajuudet kotoutumista tukevassa ammatillisessa koulutuksessa
2017
Maisterintutkielmassani tarkastelen suomi toisena kielenä opetusta sitä urallaan ensi kertaa toteuttaneiden opettajien näkökulmasta. Opetus tapahtui ammattiopistossa kotoutumista tukevassa sekä opiskelu- ja työelämävalmiuksia lisäävässä koulutuksessa, joka oli suunnattu läheisessä vastaanottokeskuksessa asuneille aikuisille turvapaikanhakijoille. Kielenopetus järjestettiin pääasiassa integroituna ammatillisiin opintoihin ja sitä toteuttivat niin S2-opettaja kuin ammatinopettajatkin. Tutkimuksen tavoitteet ovat kuvata toiminnallista kielenopetusta ammatillisessa kontekstissa sekä tarkastella opettajien kielentämiä kokemuksia omassa ammatillisessa identiteetissään narratiivisten opettajuuksie…
Halla-ahon ahdistus ja ironia : ulossulkeva suomalaisuus ja ahdas nationalismi Scripta-blogissa
2020
Ecological impacts of invasive signal crayfish in large boreal lakes
2012
Noise effect in a FitzHugh-Nagumo circuit driven by a bichromatic signal
2013
We analyze the response of a nonlinear circuit exactly ruled by the FitzHugh-Nagumo equations. This circuit is submitted to a bichromatic signal including a high frequency and a low frequency. In absence of noise, we show that for an appropriate amplitude of the high frequency driving, the response of the circuit estimated at the low frequency can be optimized via the phenomenon of vibrational resonance. Next, we show that under certain conditions, noise can contribute to the effect of vibrational resonance. Colored noise is also considered. Our experimental results are confirmed by a numerical analysis.
Increasing the Astrophysical Reach of the Advanced Virgo Detector via the Application of Squeezed Vacuum States of Light
2019
Current interferometric gravitational-wave detectors are limited by quantum noise over a wide range of their measurement bandwidth. One method to overcome the quantum limit is the injection of squeezed vacuum states of light into the interferometer's dark port. Here, we report on the successful application of this quantum technology to improve the shot noise limited sensitivity of the Advanced Virgo gravitational-wave detector. A sensitivity enhancement of up to 3.2±0.1 dB beyond the shot noise limit is achieved. This nonclassical improvement corresponds to a 5%-8% increase of the binary neutron star horizon. The squeezing injection was fully automated and over the first 5 months of the thi…
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
2017
On August 17, 2017 at 12-41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW170817, was detected with a combined signal-to-noise ratio of 32.4 and a false-alarm-rate estimate of less than one per 8.0×104 years. We infer the component masses of the binary to be between 0.86 and 2.26 M, in agreement with masses of known neutron stars. Restricting the component spins to the range inferred in binary neutron stars, we find the component masses to be in the range 1.17-1.60 M, with the total mass of the system 2.74-0.01+0.04M. The source was localized within a sky region of 28 deg2 (90% probabili…
Hulluksi nimetty Huttunen : kulttuurintutkimuksen näkökulmia hulluksinimeämiseen Arto Paasilinnan Ulvovassa myllärissä
2017
Tutkielma tarkastelee hulluuden nimeämistä ja nimeämisen syitä Arto Paasilinnan Ulvova mylläri -romaanin (1981) kuvaamassa maailmassa. Teoreettiselta viitekehykseltään ja menetelmiltään tutkielma on yhteiskunnallisesti ja monitieteisesti orientoitunutta kulttuurintutkimusta ja kulttuurista mielenterveystutkimusta. Keskeisimmät tutkimukselliset virikkeet ovat Stuart Hallin analyyseistä, jotka kiinnittävät huomiota erilaisuuksiin, eroihin ja toiseuksiin sekä niiden kulttuuris-yhteiskunnalliseen rakentumiseen. Keskiössä on myös Hallin ja Michel Foucault'n kautta määrittyvä näkemys vallan produktiivisesta ja kehämäisestä luonteesta. Tutkielma on artikkelimuotoinen ja koostuu johdanto- ja yhteen…
Noise Reduction and Gap Filling of fAPAR Time Series Using an Adapted Local Regression Filter
2014
Time series of remotely sensed data are an important source of information for understanding land cover dynamics. In particular, the fraction of absorbed photosynthetic active radiation (fAPAR) is a key variable in the assessment of vegetation primary production over time. However, the fAPAR series derived from polar orbit satellites are not continuous and consistent in space and time. Filtering methods are thus required to fill in gaps and produce high-quality time series. This study proposes an adapted (iteratively reweighted) local regression filter (LOESS) and performs a benchmarking intercomparison with four popular and generally applicable smoothing methods: Double Logistic (DLOG), sm…
Noise effect in a sine-Gordon Lattice
2013
International audience; This paper is devoted to the influence of internal noise in a sine-Gordon chain exhibiting the well known nonlinear supratransmission phenomenon. It is shown that spatiotemporal noise can trigger breather modes with a given probability in a range of parameters where they do not occur without noise. A frequency analysis is carried out to quantify the degree of coherence of the emitted breather. It is shown that there exists an appropriate amount of noise which ensures the existence of breather modes with the best coherence.
Thermal noise limit for ultra-high vacuum noncontact atomic force microscopy
2013
The noise of the frequency-shift signal Δf in noncontact atomic force microscopy (NC-AFM) consists of cantilever thermal noise, tip–surface-interaction noise and instrumental noise from the detection and signal processing systems. We investigate how the displacement-noise spectral density dz at the input of the frequency demodulator propagates to the frequency-shift-noise spectral density dΔf at the demodulator output in dependence of cantilever properties and settings of the signal processing electronics in the limit of a negligible tip–surface interaction and a measurement under ultrahigh-vacuum conditions. For a quantification of the noise figures, we calibrate the cantilever displacemen…