68 research outputs found
English Is It! (ELT Training Series). Vol. 2
Grup de treball ICE-UB: From English Acquisition to English Learning and TeachingEnglish Is It! (ELT Training Series) was created with a view to providing opportunities which can
make up, somehow, for this gap. The aforementioned members are the permanent teaching
staff in the group, they investigate their different areas of expertise in their classes, expose
them to the group and make proposals, which are later turned into articles.
To do that, all members have extensively trained to spend the most time in the writing process
in order to give the least work to the reader. They have both been succinct and explicit, and
tried to say what they meant while meaning what they said. They bore in mind that, unlike
class sessions, there is no audience in front, who can ask for clarification; therefore all the
planning, the sequencing, the explanations and details have been considered under this premise..
Phonon dynamics for light dark matter detection
The search for low-mass dark matter (DM) goes in parallel with the
identification of new detection channels and the development of suitable
detectors. Detection of the resulting small energy depositions is challenging:
it requires extremely high sensitivity, only achievable by cryogenic thermal
detectors, which might be put to the limit. Understanding the processes which
can limit performances of these detectors can be thus crucial for evaluating
the feasibility of the proposed new detection schemes and to design the
detectors and tune their performance. In this paper we focus on a promising
detection scheme, the excitation of single optical phonons in polar materials,
to evaluate one of the possible limiting factors of cryogenic thermal
detectors, i.e. the phonon dynamics in the target/absorber. We present a
detailed theoretical analysis, within an entirely ab initio scheme, of the
downconversion and propagation processes undergone by optical phonons, created
by the interaction of a low-mass DM particle in an Al2O3 target, until they
reach the interface with a phonon Al collector. After a preliminary
methodological survey that reveals the limitations of any Relaxation Time
Approximation based method, we developed a 3D beyond-RTA phonon Monte Carlo
that allowed us to introduce the spatial dimension of the device and address
questions about impact of target size and scattering position. We analyse also
the effect of the phonon energy and wavevector and show that isotopes can,
perhaps counterintuitively, result in a larger heat flux by providing transport
channels of higher velocities, thus favoring detection. Our results suggest
that, though challenging, the direct detection of light DM via athermal phonon
generation appears feasible, and that the phonon downconversion followed by
quasi-ballistic propagation does not appear to be a major bottleneck in terms
of reducing the signal.Comment: 16 pages, 11 figure
English Is It! (ELT Training Series). Vol. 3
English Is It! (ELT Training Series) was created with a view to providing opportunities which can
make up, somehow, for this gap. The aforementioned members are the permanent teaching
staff in the group, they investigate their different areas of expertise in their classes, expose
them to the group and make proposals, which are later turned into articles.
To do that, all members have extensively trained to spend the most time in the writing process
in order to give the least work to the reader. They have both been succinct and explicit, and
tried to say what they meant while meaning what they said. They bore in mind that, unlike
class sessions, there is no audience in front, who can ask for clarification; therefore all the
planning, the sequencing, the explanations and details have been considered under this premise..
English Is It! (ELT Training Series). Vol. 15
The Research group From English Acquisition to English Learning and Teaching is registered at the Institute of Professional Development Teaching (IDP-ICE), at the University of Barcelona. The group, founded and led by Lourdes Montoro (September 2013 - June 2021), has involved 28 teachers and professionals. 7 of them have been members of the group, and, together with 21 guest authors, have presented their work in the publication which she also created, and coordinated to fulfill the objectives of the pedagogical project which she had devised: English Is It! (ELT Training Series (Vols. 1-15)
English Is It! (ELT Training Series). Vol. 5
English Is It! (ELT Training Series) was created with a view to providing opportunities which can make up, somehow, for this gap. The aforementioned members are the permanent teaching staff in the group, they investigate their different areas of expertise in their classes, expose them to the group and make proposals, which are later turned into articles
Temperature and Current Sensitivities of Bare Mo/Au Transition-Edge Sensors
We study the logarithmic transition sensitivities to temperature and current, α and β, of bare Mo/Au TES sensors without any normal metal structure, with and without relevant weak link effects. Both parameters display a smooth dependence with bias. We analyze them as a function of bias, bath temperature and TES size. We observe relevant differences in the behavior of α and β as the aspect ratio increases
English Is It! (ELT Training Series). Vol. 1
Grup de treball ICE-UB:From English Acquisition to English Learning and Teachin
English Is It! (ELT Training Series). Vol. 4
English Is It! (ELT Training Series) was created with a view to providing opportunities which can make up, somehow, for this gap. The aforementioned members are the permanent teaching staff in the group, they investigate their different areas of expertise in their classes, expose them to the group and make proposals, which are later turned into articles
English Is It! (ELT Training Series). Vol. 11
English Is It! (ELT Training Series) was created with a view to providing opportunities which can
make up, somehow, for this gap. The aforementioned members are the permanent teaching
staff in the group, they investigate their different areas of expertise in their classes, expose
them to the group and make proposals, which are later turned into articles.
To do that, all members have extensively trained to spend the most time in the writing process
in order to give the least work to the reader. They have both been succinct and explicit, and
tried to say what they meant while meaning what they said. They bore in mind that, unlike
class sessions, there is no audience in front, who can ask for clarification; therefore all the planning, the sequencing, the explanations and details have been considered under this premise..
English Is It! (ELT Training Series). Vol. 6
English Is It! (ELT Training Series) was created with a view to providing opportunities which can
make up, somehow, for this gap. The aforementioned members are the permanent teaching
staff in the group, they investigate their different areas of expertise in their classes, expose
them to the group and make proposals, which are later turned into articles
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