46,243 research outputs found
The Gaia-ESO Survey: the most metal-poor stars in the Galactic bulge
No full textHowes, L. M. et al.-- Full list of authors: Howes, L. M.; Asplund, M.; Casey, A. R.; Keller, S. C.; Yong, D.; Gilmore, G.; Lind, K.; Worley, C.; Bessell, M. S.; Casagrande, L.; Marino, A. F.; Nataf, D. M.; Owen, C. I.; Da Costa, G. S.; Schmidt, B. P.; Tisserand, P.; Randich, S.; Feltzing, S.; Vallenari, A.; Allende Prieto, C.; Bensby, T.; Flaccomio, E.; Korn, A. J.; Pancino, E.; Recio-Blanco, A.; Smiljanic, R.; Bergemann, M.; Costado, M. T.; Damiani, F.; Heiter, U.; Hill, V.; Hourihane, A.; Jofré, P.; Lardo, C.; de Laverny, P.; Magrini, L.; Maiorca, E.; Masseron, T.; Morbidelli, L.; Sacco, G. G.; Minniti, D.; Zoccali, M.We present the first results of the EMBLA survey (Extremely Metal-poor BuLge stars with AAOmega), aimed at finding metal-poor stars in the Milky Way bulge, where the oldest stars should now preferentially reside. EMBLA utilizes SkyMapper photometry to pre-select metal-poor candidates, which are subsequently confirmed using AAOmega spectroscopy. We describe the discovery and analysis of four bulge giants with -2.72 ≤ [Fe/H] ≤ -2.48, the lowest metallicity bulge stars studied with high-resolution spectroscopy to date. Using FLAMES/UVES spectra through the Gaia-ESO Survey we have derived abundances of twelve elements. Given the uncertainties, we find a chemical similarity between these bulge stars and halo stars of the same metallicity, although the abundance scatter may be larger, with some of the stars showing unusual [α/Fe] ratios. © 2014 The Authors.We greatly acknowledge generous funding from the Australian Research Council (grants FL110100012 and DP120101237). TB was funded by grant no. 621-2009- 3911 from The Swedish Research Council. Support from the Swedish National Space Board is acknowledged. Based on data products from observations made with ESO Telescopes at the La Silla Paranal Observatory under programme ID 188.B-3002. This work was partly supported by the European Union FP7 programme through ERC grant number 320360 and by the Leverhulme Trust through grant RPG-2012-541. We acknowledge the support from INAF and Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) in the form of the grant ‘Premiale VLT 2012’. The results presented here benefit from discussions held during the Gaia-ESO workshops and conferences supported by the ESF (European Science Foundation) through the GREAT Research Network Programme. MZ acknowledges support from Fondecyt Regular 1110393, the BASAL CATA PFB-06 and by the Chilean Ministry for the Economy, Development, and Tourism's Programa Iniciativa Científica Milenio through grant IC12009, awarded to the Millennium Institute of Astrophysics.Peer reviewe
Long-term growth in vitro of isolated, fully differentiated neurones from the central nervous system of an adult insect
No full textA method is described for the isolation and growth in vitro of fully differentiated neurones from the thoracic ganglia of adult cockroaches. The presence of insect blood in the culture system is shown to promote growth. The morphology of the growing neurones and the plasticity of the branching processes are described and growth rates are measured. Using a fluorescent Ca2+ indicator dye, changes of intracellular calcium levels in the growing neurones in response to K+ depolarization have been measured. The results, indicating the presence of voltage-dependent Ca2+ channels on neuronal processes in vitro, show that neurones can be maintained in a functional state for several weeks by this technique. Such preparations could prove useful for studying a variety of physiological and pharmacological properties of neurones, including the mechanisms controlling growth, synapse formation and neuronal interactions with other cell types. <br/
KESESUAIAN PERAWATAN ORTODONTIK BERDASARKAN INDEKS BOLTON, PONT, DAN HOWES YANG DILAKUKAN DI RSGM FKG UNHAS MAKASSAR
No full text2014GEMELLA NUR ILLAHI. Kesesuaian Perawatan Ortodontik Berdasarkan \ud
Indeks Bolton, Pont, dan Howes yang Dilakukan Di RSGM FKG Unhas \ud
MakassarDibimbing oleh Prof.drg.H. Mansjur Nasir,Ph.D \ud
Tujuan : penelitian ini bertujuan untuk mengetahui kesesuaian perawatan ortodontik \ud
berdasarkan indeks Bolton, Pont dan Howes di RSGM FKG Unhas \ud
Materi dan metode : jenis penelitian ini ialah observasional analitik dengan desain \ud
cross sectional. Sampel yang digunakan adalah 100 buah model gigi beserta buku \ud
pembicaraan model yang terdiri dari 50 pasang klas I Angle dan 50 pasang klas II \ud
Angle. Dilakukan pengukuran model gigi dengan m enggunakan penggaris dan \ud
jangka s orong, kemudian hasi lnya dimasu kkan ke dalam rumus Pont, Howes dan \ud
Bolton untuk menentukan rencana perawatan yang akan dilakukan . Waktu penelitian \ud
dimulai pada Maret sampai Mei 2014. \ud
Hasil dan Kesimpulan : (1). Prosentase kesesuaian perawatan berdasarkan indeks \ud
Howes dengan Pont untuk maloklusi klas I Angl e diperoleh sebesar 58% sesuai dan \ud
42% tidak sesuai. Untuk maloklusi klas II Angle diperoleh 62 % sesuai dan 38 % \ud
t idak sesuai .(2). Prosentase kesesuaian perawatan berdasarkan i indeks Howes dengan \ud
Bolton untuk maloklusi klas I Angle diperoleh sebesar 4% sesuai dan 96% tidak \ud
sesuai. Untuk maloklusi klas II Ang le 0% sesuai dan 100 % tidak \ud
sesuai. (3). Prosentase kesesuaian perawatan berdasarkan indeks Pont dengan Bolton \ud
untuk maloklusi klas I Angle dan klas II Angle diperoleh sebesar 22% sesuai dan 78% \ud
tidak sesuai. (4). Diperoleh nilai p < 0.05 pada kesesuaian dan ketidaksesuaian \ud
perawatan untuk maloklusi klas I Angle dan klas II Angle \ud
\ud
Kata Kunci : Kesesuaian perawatan, Howes, Pont, Bolton
Settling of finite-size particles in isotropically forced, homogeneous turbulence: interface-resolved simulations
No full textWe have simulated the gravity-induced settling of finite-size particles in a turbulent background flow which is forced in a statistically-stationary fashion. The simulations are accurately resolving the solid-fluid interface with the aid of an immersed boundary technique [1]. The parameters of the simulation are (apart from background turbulence) identical to those of reference [2], where particle clustering was observed at a Galileo number of 178 and a solid volume fraction of 0.005. In the present case, it is found that a relative turbulence intensity of 0.24 leads to the disappearance of the clusters; as a consequence, the increase in average particle settling velocity found in [2] also vanishes. [1] M. Uhlmann. An immersed boundary method with direct forcing for the simulation of particulate flows. J. Comput. Phys., 209(2):448–476, 2005. [2] M. Uhlmann and T. Doychev. Sedimentation of a dilute suspension of rigid spheres at intermediate Galileo numbers: the effect of clustering upon the particle motion. J. Fluid Mech., 752:310–348, 2014
Reduction in Arterial Stiffness Index (SI) in Response to Combination Antioxidant Therapy
No full textAntioxidants reduce arterial stiffness, but the effects previously reported are weak. A systematic review of the antioxidants vitamin E, vitamin C, vitamin A, and beta-carotenes (the most commonly studied antioxidants) on pulse wave velocity (PWV) found an effect size of only −0.20 (approximately −16 m/s or −2.5%). Studies in rats of the potent pro-oxidant substance acetaldehyde have shown that combinations of sulfur-containing antioxidants, including thiamine and l-cysteine, with ascorbic acid potently protect against oxidative-stress-mediated mortality. The effects of these combinations of oxidants on PWV have not been studied. The present study evaluated the effects of 2 weeks of therapy with a combination of sulfur-containing antioxidants (cysteine, thiamine, and pyridoxine) in combination with ascorbic acid on stiffness index (SI), a measure of arterial stiffness that is strongly correlated with PWV, using a Pulse Trace recorder in a diverse group of 78 volunteers. SI fell by −1.7 m/s relative to placebo (95% confidence intervals −0.6 to −2.7 m/s), a reduction of −19% (95% confidence intervals −9% to −31%). The Glass effect size was 1.4, indicating a very strong treatment effect which was substantially greater than the effect size found in previous studies of antioxidants. PWV reduction was correlated significantly with increasing age. Further studies of similar antioxidant combinations are required to determine whether they are of value in the treatment or prevention of cardiovascular disease
Dopaminergic basis of salience dysregulation in psychosis
No full textDisrupted salience processing is proposed as central in linking dysregulated dopamine function with psychotic symptoms. Several strands of evidence are now converging in support of this model. Animal studies show that midbrain dopamine neurons are activated by unexpected salient events. In psychotic patients, neurochemical studies have confirmed subcortical striatal dysregulation of dopaminergic neurotransmission, whereas functional magnetic resonance imaging (fMRI) studies of salience tasks have located alterations in prefrontal and striatal dopaminergic projection fields. At the clinical level, this may account for the altered sense of meaning and significance that predates the onset of psychosis. This review draws these different strands of evidence together in support of an emerging understanding of how dopamine dysregulation may lead to aberrant salience and psychotic symptoms. © 2013 Elsevier Ltd
Mesophilic-hydrothermal-thermophilic (M-H-T) digestion of green corn straw
No full textMesophilic-hydrothermal (80-160 degrees C, 30 min)-thermophilic (M-H-T) digestion and control tests of mesophilic (M), thermophilic (T), hydrothermal-mesophilic (H-M), and mesophilic-thermophilic digestion (M-T) of green corn straw were conducted for a 20-day fermentation period. The results indicate that M-H-T is an efficient method to improve methane production. A maximum methane yield of 371.74 mL/g volatile solid was obtained by the M (3 days)-H (140 degrees C)-T (17 days) process, which was 20.44%, 16.55%, 31.44%, and 14.31% higher than the yields of the M, T, 140-M, and M-T processes. The enhanced methane production was attributed to (1) the improved hemicellulose degradation and lignin disorganization; (2) prevention of the degradation of soluble sugar, easily hydrolyzed hemicellulose and cellulose into furfural and methylfurfural; and (3) lack of formation of Maillard reaction products during initial hydrothermal treatment. (C) 2015 Elsevier Ltd. All rights reserved
Using conversation topics for predicting therapy outcomes in schizophrenia.
No full textThis article is available from
http://www.la-press.com.
© the author(s), publisher and licensee Libertas Academica Ltd.
This is an open access article published under the Creative Commons CC-BY-NC 3.0 license.Previous research shows that aspects of doctor-patient communication in therapy can predict patient symptoms, satisfaction and future adherence to treatment (a significant problem with conditions such as schizophrenia). However, automatic prediction has so far shown success only when based on low-level lexical features, and it is unclear how well these can generalize to new data, or whether their effectiveness is due to their capturing aspects of style, structure or content. Here, we examine the use of topic as a higher-level measure of content, more likely to generalize and to have more explanatory power. Investigations show that while topics predict some important factors such as patient satisfaction and ratings of therapy quality, they lack the full predictive power of lower-level features. For some factors, unsupervised methods produce models comparable to manual annotation
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
Women's Institute Education Program Awarded Dr. H. M. Tory Memorial
No full textNewspaper Article - 'Women's Institute Education Program Awarded Dr. H. M. Tory Memorial' - In recognition of their program of adult education.AWI CollectionDIRECT AVI MEETING— With the the theme of " Progress to Peace", more
t h a n 365 members of the Alberta WI are meeting this week at Convocation Hall,
University of Alberta. Platform directors include from left to right, Mrs. R. D.
Prendergast, secretary; Mrs. F. S. Lefsrud of Viking, president and Mrs. T. H.
Howes of Millet, vice- president.
omen s Institute Education Program
Awarded Dr. H. M. Tory Memorial
I n recognition of their program
of adult education the
Federated Women's Institutes
have been awarded the Henry
Marshall Tory award.
This was announced Tuesday
afternoon to members of the Alberta
Women's Institute, meeting
at Convocation Hall, University
of Alberta, by Mrs. J. W.
Adams of Ethelton, Sask., national
president. The award,
given each year by the Canadian
Association of Adult Education,
is in memory of the late Dr. H.
M. Tory, first president of the
University of Alberta.
'' We women owe a debt to
democracy," said Mrs. Adams,
addressing more than 365 deleg
a t e s attending the week's convention.
" Democracy needs good
citizenship. It is a way of life
and is always in* progress."
WI AS PIONEER
The speaker maintained that
the WI has led the way in adult
education and reported on nine
provincial conventions and presented
highlights of the activities
of various provinces. She
suggested that a national convention
and a national office is
needed.
Mrs. Adams pointed out that
all the other WI branches are
linked with the government, except
the Alberta WI. " Our organization
has a complex and
growing program. Professional
assistance is needed." '
" Coming together is beginning;
thinking together is unity;
planning together is progress;
working together is success."
Later, Mrs. Adams outlined
the activities of the international
ACWW which has been accorded
a membership in the.
United Nations, thus carrying a
challenge to the women on the
provincial, national and international
levels.
" Only by sharing can we raise
the standard of living of the
world through the education of
women."
PLANT TREES
A highlight of the afternoon
session was the planting of the
three trees in front, and to the
right, of the Agricultural Building.
Miss Isobel Noble of Wit-chita,
Kans. planted an evergreen
tree dedicated to the past,
as first president of the Alberta
WI. Mrs. S. Lefsrud, planted
a black ash on the east side of
the building, to the present. A
Manchurian elm, to the future,
was planted by Mrs. L. Dunne
of Turin, as president of the
Girls' Clubs.
The trees were accepted by Dr.
O. S. Longman, deputy minister
of agriculture, for the province;
Dr. A. G. McCalla, head of the
department of agriculture, for
the university; and Mr. J. W.
Madille, president of the Agricultural
Association, for the association.
The service was conducted by
Mrs. T. H. Howes of Millet,
and Mrs. H. Moonen, convener
of the standing committee of
agriculture and Canadian Industries.
CONVENTION THEME
With the theme of " Progress
to Peace," the convention officially
opened Tuesday morning
with greetings from Mrs. J. P.
White, president of the Edmonton
WI, welcoming the delegates.
She presented the convention
with a floral piece — a
gold metal figure of the number
" 50" surrounded by yellow
daisies and iris to mark Alberta's
Jubilee year.
Mrs. R. J. Jorgenson, department
of health, brought greetings
from the province, Dr
Andrew Stewart from the university
and Alderman Laurette
Douglas from the city. Mrs. G
R. Carnihe replied to all greetings.
Reports were heard from Mrs.
S. Lefsrud, president, Mrs. T. H,
Howes, vice- president and Mrs.
R. W. Prendergast, secretary,
when it was announced that
there are 37 constituencies, 284
branches, and 5,464 members in
the Alberta WI. Publicity reports
were heard from Mrs. W.
Ockley of Calgary, Mrs. J. A.
Campbell and Mrs. Howes.
Mrs. Howes, a long- time worker
in the WI, was presented with
a life membership pin.
Mrs. R. Styles, in discussing
" objectionable literature" announced
that there are 90 million
types of comics published.
Mrs. R. Moore of the Edmonton
Public Library, told the
women what the library could
do to conteract this. " We must
bring books to children, and one
of the best ways to do this is to
set up regional libraries in all
the coummunities."
Mrs. V. G. McDonald outlined
services offered by the
extension service department of
agriculture, when she announced
that there are 17 home economic
districts.
In m u s i c a l entertainment
which has been p r o v i d ed
between sessions were piano
solos by Mrs. S. Lefsrud, vocal
solos by Miss Jeanette Mac-
Donald and Miss R. Isaac, and j
Highland Dancing by Sare LeeJ
Holden
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