637,573 research outputs found
Challenges of Early Years leadership preparation: a comparison between early and experienced Early Years practitioners in England
Leadership has been under-researched in the Early Years (EY) sector of primary schools in England, especially in leading change for professional development. The aim of this paper is to theorise what the leadership culture for EY practitioners looks like, and how Initial Teacher Training providers and schools are preparing practitioners for leadership. Using case studies of EY practitioners in different stages of their career in primary schools, we offer an insight into their preparedness for leadership in EY, the implication being that leadership training requires an understanding and embedding of the EY culture and context. Interviews with both sample groups allowed for deeper insight into the lived world. Interviews were also conducted with the head teachers to gain an overview of the leadership preparation they provided. The main findings suggest that newer EY practitioners are better prepared for leadership from their university training in comparison to more experienced EY practitioners
The role of electron-electron scattering in spin transport
We investigate spin transport in quasi 2DEG formed by III-V semiconductor
heterojunctions using the Monte Carlo method. The results obtained with and
without electron-electron scattering are compared and appreciable difference
between the two is found. The electron-electron scattering leads to suppression
of Dyakonov-Perel mechanism (DP) and enhancement of Elliott-Yafet mechanism
(EY). Finally, spin transport in InSb and GaAs heterostructures is investigated
considering both DP and EY mechanisms. While DP mechanism dominates spin
decoherence in GaAs, EY mechanism is found to dominate in high mobility InSb.
Our simulations predict a lower spin relaxation/decoherence rate in wide gap
semiconductors which is desirable for spin transport.Comment: to appear in Journal of Applied Physic
Highly selective and sensitive macrocycle-based dinuclear foldamer for fluorometric and colorimetric sensing of citrate in water.
The selective detection of citrate anions is essential for various biological functions in living systems. A quantitative assessment of citrate is required for the diagnosis of various diseases in the human body; however, it is extremely challenging to develop efficient fluorescence and color-detecting molecular probes for sensing citrate in water. Herein, we report a macrocycle-based dinuclear foldamer (1) assembled with eosin Y (EY) that has been studied for anion binding by fluorescence and colorimetric techniques in water at neutral pH. Results from the fluorescence titrations reveal that the 1·EY ensemble strongly binds citrate anions, showing remarkable selectivity over a wide range of inorganic and carboxylate anions. The addition of citrate anions to the 1·EY adduct led to a large fluorescence enhancement, displaying a detectable color change under both visible and UV light in water up to 2 μmol. The biocompatibility of 1·EY as an intracellular carrier in a biological system was evaluated on primary human foreskin fibroblast (HF) cells, showing an excellent cell viability. The strong binding properties of the ensemble allow it to be used as a highly sensitive, detective probe for biologically relevant citrate anions in various applications
Why are there still so few men within Early Years in primary schools: views from male trainee teachers and male leaders?
One of the challenges facing the Early Years (EY) sector is how to encourage more male practitioners to counterbalance a largely feminised workforce. Using case studies of male trainees at different stages of their primary undergraduate Initial Teacher Training course at one university, we attempt to consider data why there is underrepresentation of men within the leadership strata in EY settings. Questionnaires and interviews were conducted with the male sample groups and male leaders in primary schools to gain an overview regarding gender stereotyping. Our findings suggest that male trainees enjoy working in the EY sector, but they need mentoring by strong leaders to help them overcome the perceived contextual barriers of male stereotypes in that setting. In conclusion, we consider some of these barriers of stereotypes, attitudes, values, beliefs existing and the actions needed in addressing such stereotypes if a long-lasting change is to happen
Composite Accretion Disk and White Dwarf Photosphere Analyses of the FUSE and HST Observations of EY Cygni
We explore the origin of FUSE and HST STIS far UV spectra of the dwarf nova,
EY Cyg, during its quiescence using \emph{combined} high gravity photosphere
and accretion disk models as well as model accretion belts. The best-fitting
single temperature white dwarf model to the FUSE plus HST STIS spectrum of EY
Cygni has TK, log , with an Si abundance of 0.1 x
solar and C abundance of 0.2 x solar but the distance is only 301 pc. The
best-fitting composite model consists of white dwarf with TK,
log , plus an accretion belt with TK covering 27% of
the white dwarf surface with V km/s. The accretion belt
contributes 63% of the FUV light and the cooler white dwarf latitudes
contribute 37%. This fit yields a distance of 351 pc which is within 100 pc of
our adopted distance of 450 pc. EY Cyg has very weak C {\sc iv} emission and
very strong N {\sc v} emission, which is atypical of the majority of dwarf
novae in quiescence. We also conducted a morphological study of the
surroundings of EY Cyg using direct imaging in narrow nebular filters from
ground-based telescopes. We report the possible detection of nebular material^M
associated with EY Cygni. Possible origins of the apparently large N {\scv}/C
{\sc iv} emission ratio are discussed in the context of nova explosions,
contamination of the secondary star and accretion of nova abundance-enriched
matter back to the white dwarf via the accretion disk or as a descendant of a
precursor binary that survived thermal timescale mass transfer. The scenario
involving pollution of the secondary by past novae may be supported by the
possible presence of a nova remnant-like nebula around EY Cyg.Comment: To appear in AJ, Oct. 2004. 5 figures, including 2 color ones (2D
pictures
Sight switch using an infrared source and sensor Patent
Sight switch using infrared source and sensor mounted beside ey
Being a manager in an English nursery
This article draws on interviews with 29 managers and deputy managers within 15 nurseries in the private sector in England. The author argues that, whilst there is a growing literature on management and professionalism within the Early Years (EY) sector, there is less known about the actual experiences of being a manager in this context. Many of the individuals who are promoted into a management role did not, until recently, have the training to support them. Whilst individuals are being encouraged to participate in the managerial roles now demanded by the professionalisation agenda, it could be argued that the traditional EY workforce are primarily motivated by a strong desire to work with children. Even if their own employer provides in-house management training or the opportunity to participate in national schemes such as EYPS, these young women, like many professionals becoming managers, move away from what they like doing best – working with the client/children. The research outlined in this paper explores these issues by relaying individuals’ stories of what it is like to be a manager in the EY context
Ultrasound and phakometry measurements of the primate eye Technical report, Aug. 1965
Ultrasonic testing and phakometry measurements of primate ey
Photometric and spectroscopic observations of three rapidly rotating late-type stars: EY Dra, V374 Peg and GSC 02038-00293
Here, BV(RI)c broad band photometry and intermediate resolution spectroscopy
in Halpha region are presented for two rapidly rotating late-type stars: EY Dra
and V374 Peg. For a third rapid rotator, GSC 02038-00293, intermediate
resolution Halpha spectroscopy and low resolution spectroscopy are used for
spectral classification and stellar parameter investigation of this poorly
known object. The low resolution spectrum of GSC 02038-00293 clearly indicates
that it is a K-type star. Its intermediate resolution spectrum can be best
fitted with a model with Teff=4750K and vsini=90km/s, indicating a very rapidly
rotating mid-K star. The Halpha line strength is variable, indicating changing
chromospheric emission on GSC 02038-00293. In the case of EY Dra and V374 Peg,
the stellar activity in the photosphere is investigated from the photometric
observations, and in the chromosphere from the Halpha line. The enhanced
chromospheric emission in EY Dra correlates well with the location of the
photospheric active regions, indicating that these features are spatially
collocated. Hints of this behaviour are also seen in V374 Peg, but it cannot be
confirmed from the current data. The photospheric activity patterns in EY Dra
are stable during one observing run lasting several nights, whereas in V374 Peg
large night-to-night variations are seen. Two large flares, one in the Halpha
observations and one from the broadband photometry, and twelve smaller ones
were detected in V374 Peg during the observations spanning nine nights. The
energy of the photometrically detected largest flare is estimated to be
4.25x10^31 - 4.3x10^32 ergs, depending on the waveband. Comparing the activity
patterns in these two stars, which are just below and above the mass limit of
full convection, is crucial for understanding dynamo operation in stars with
different internal structures.Comment: Accepted for publication in Astronomische Nachrichten (Astronomical
Notes
Nat Med
DP1 GM114862/GM/NIGMS NIH HHS/United StatesDP1GM114862/DP/NCCDPHP CDC HHS/United StatesK99 EY024336/EY/NEI NIH HHS/United StatesK99EY024336/EY/NEI NIH HHS/United StatesP30EY003040/EY/NEI NIH HHS/United StatesR01 EY018350/EY/NEI NIH HHS/United StatesR01 EY018836/EY/NEI NIH HHS/United StatesR01 EY020672/EY/NEI NIH HHS/United StatesR01 EY022238/EY/NEI NIH HHS/United StatesR01AI063331/AI/NIAID NIH HHS/United StatesR01AR052756/AR/NIAMS NIH HHS/United StatesR01EY001545/EY/NEI NIH HHS/United StatesR01EY017182/EY/NEI NIH HHS/United StatesR01EY017950/EY/NEI NIH HHS/United StatesR01EY018350/EY/NEI NIH HHS/United StatesR01EY018836/EY/NEI NIH HHS/United StatesR01EY020672/EY/NEI NIH HHS/United StatesR01EY022238/EY/NEI NIH HHS/United StatesT32HL091812/HL/NHLBI NIH HHS/United StatesTL1 RR033172/RR/NCRR NIH HHS/United StatesTL1 TR000115/TR/NCATS NIH HHS/United StatesUL1 RR033173/RR/NCRR NIH HHS/United StatesUL1 TR000117/TR/NCATS NIH HHS/United StatesUL1RR033173/RR/NCRR NIH HHS/United States2015-06-04T00:00:00Z25473914PMC427554
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