4,330 research outputs found
The value of collaboration: who, how, why
No full textThe qualitative analysis done on interviews to 20 teacher librarians,
about their perceptions on factors that might impact students’ educational
success seems to reveal that collaborative work is one of the conditions
for this success to exist and one of the biggest challenges to those teachers.
The theme collaboration appears in the discourse of all interviewees
and it was not found significant differences of opinion, in what refers
to its importance, between teachers with and without specific training
to perform their tasks in the school libraries belonging to schools with
diverse characteristics and geographical location. Nevertheless, it was not
identified any real collaboration practices between teachers but only cases
of coordination and / or cooperation. Some of the conditions most referred
by the interviewed teacher librarians as “against” to and “in favour” of
collaborative work and educational success, where respectively, lack of
time and the existence of a full time teacher librarian.
Some suggestions and / or recommendations are done to the responsible
for the organisation and development of school libraries as to gather
efforts to get the teacher librarian post institutionalised, and to the school
management boards to implement and stimulate true collaborative work
between teachers and teacher librarian, aiming at the students’ educational
success. specific training might have on students’ educational success,
and to gather diverse opinions, TL with (WT) and with out (WOT)
specific training, to perform their duties at the SL were interviewed.
The interviews were taped, with the interviewee’s agreement, and their
qualitative analysis was supported by the use of ATLAS.ti software
Enhancing the student experience through effective collaboration: a case study
No full textIn the United Kingdom (UK), closer integration of public services is challenging professionals to work more collaboratively within and across their organizational and professional boundaries (Great Britain DOH 2000; Great Britain DFES 2003). Reflecting a move to more significantly include librarians in educational collaboration (Schulte and Sherwill-Navarro 2009), this paper provides insight into the development of an innovative health curriculum in which academic staff, together with library staff, have engaged in successful collaborative working on a range of health and social care professional programs. This successful partnership has, to date, enabled the theme of lifelong learning to be embedded into a complex, year one, interprofessional module entitled “Foundations of Learning and Collaborative Working” (Northumbria University 2007). Using the Symbolic Interactionist Framework for Collaboration (SIFC) (Machin 2009), a case study of the collaborative working process undertaken is presented and factors influencing the success of the venture are highlighted. Sharing our experience may help others seeking to collaborate in their own work setting
The NaI[Tl] COHERENT Detector
No full textPresentation given at the Magnificent CEvNS workshop (2018) on the NaI[Tl] detector included in the COHERENT Collaboration.</p
Scientometric Portrait of Nobel Laureate S. Chandrasekhar
No full textScientometric analysis of the publications productivity of Nobel Laureate S. Chandrasekhar is documented
Tangle-bearing neurons survive despite disruption of membrane integrity in a mouse model of tauopathy
No full textNeurofibrillary tangles (NFTs) are associated with neuronal loss and correlate with cognitive impairment in Alzheimer disease, but how NFTs relate to neuronal death is not clear. We studied cell death in Tg4510 mice that reversibly express P301L mutant human tau and accumulate NFTs using in vivo multiphoton imaging of neurofibrillary pathology, propidium iodide (PI) incorporation into cells, caspase activation, and DNA labeling. We first observed that in live mice, a minority of neurons were labeled with the caspase probe or with PI fluorescence. These markers of cell stress were localized in the same cells and appeared specifically within NFT-bearing neurons. Contrary to expectations, the PI-stained neurons did not die during a day of observation; the presence of Hoechst-positive nuclei in them on the subsequent day indicated that the NFT-associated membrane disruption, as suggested by PI staining, and caspase activation do not lead to immediate death of neurons in this tauopathy model. This unique combination of in vivo multiphoton imaging with markers of cell death and pathological alteration is a powerful tool for investigating neuronal damage associated with neurofibrillary pathology
Status of the COSINE Experiment
No full textThe COSINE collaboration is preparing to test an annual modulation signal of the DAMA/LIBRA experiment unambiguously, with a 42 array of low-background NaI(Tl) crystals at the Yangyang Underground Laboratory, South Korea. We have studied more than ten NaI(Tl) crystals as part of an RD program aiming to reduce internal backgrounds. The first phase of experiment with a 106 kg array of NaI(Tl) crystals (COSINE-100) is under preparation to be started by summer, 2016
The charge transfer and ion formation in liquid Li-Tl alloys
No full textThe 7Li NMR Knight shift, K, and the spin-lattice relaxation time, T1, were measured for liquid Li–Tl alloys. The K decreases rapidly with the addition of Tl up to 20 at.% Tl. In the concentration from 20 to 50 at.% Tl, the K decreases only slightly and the K of 50 at.% Tl is 60% of K for the pure liquid Li. Such a decrease of K is considered as an indication for the strong charge transfer from Li to Tl. These tendencies are similar to those from previous studies for liquid Li–Ga and Li–In alloys. However, beyond 50 at.% Tl, the K increases and reaches to an almost constant value (70% of K for the pure liquid Li). Such a back donation of charge is absent for liquid Li–Ga and Li–In alloys. It is considered that the tendency of the formation of ionic structural unit for liquid Li–Tl alloys is slightly weaker compared with the cases of liquid Li–Ga and Li–In alloys. The T1 is also discussed with the relation to the Knight shift and the electronic properties
THE VISIBLE EMISSION SPECTRA OF Zn , Cd , Zn Tl, AND Cd Tl MOLECULES
No full textAuthor Institution: Department of Physics, Indian Institute of Technology; Department of Physics, State University of New York at BuffaloNew Spectra have been obtained for Zn-Tl and Cd-Tl mixtures excited by a high frequency oscillator and studied under a dispersion of 5\AA/mm. Both the mixtures show one system in the red, one in the blue and continuous bands attached to the Tl lines 3775 and 5350 \AA. The red system of Zn-Tl mixture exhibits an isotope effect, which shows Zn as the emitter. The emitter for the red system of Cd-Tl mixture is Cd . The blue systems and continuous bands are due to diatomic ZnTl and CdTl molecules. A vibrational analysis of all these systems, wherever possible has been carried out and the constants determined
Neutron capture measurement at the n_TOF facility of the ²⁰⁴Tl and ²⁰⁵Tl s-process branching points
No full textNeutron capture cross sections are one of the fundamental nuclear data in the study of the s (slow) process of nucleosynthesis. More interestingly, the competition between the capture and the decay rates in some unstable nuclei determines the local isotopic abundance pattern. Since decay rates are often sensible to temperature and electron density, the study of the nuclear properties of these nuclei can provide valuable constraints to the physical magnitudes of the nucleosynthesis stellar environment. Here we report on the capture cross section measurement of two thallium isotopes, ²⁰⁴Tl and ²⁰⁵Tl performed by the time-of-flight technique at the n_TOF facility at CERN. At some particular stellar s-process environments, the decay of both nuclei is strongly enhanced, and determines decisively the abundance of two s-only isotopes of lead, ²⁰⁴Pb and ²⁰⁵Pb. The latter, as a long-lived radioactive nucleus, has potential use as a chronometer of the last s-process events that contributed to final solar isotopic abundances
TL and OSL properties of beta irradiated Y2O3 nanocrystal
No full textNanocrystalline yttrium oxide (Y2O3) is synthesized by low temperature sol-gel technique and synthesized material is annealed at 900°C. The annealed β-rayed Y2O3 two TL glows with prominent peak at 407 K and weak glow peak at 643 K were observed in all irradiated samples. It is found that TL glow peaks intensity linearly increases with increase in β-dose from 0.813 - 40.625 Gy. The TL kinetic parameters are calculated using glow curve deconvoluted (GCD) method. The TL glows exhibits general order kinetics. Intense optical stimulated luminescence (OSL) is observed in the Y2O3 sample. These material exhibits linearity and reproducibility and hence, it suggests that this material may be used as dosimetric applications. © 2017 Author(s)
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