442 research outputs found
The Formation of Nitrogen-Fixing Bacteroids Is Delayed but Not Abolished in Soybean Infected by an [alpha]-Ketoglutarate Dehydrogenase-Deficient Mutant of Bradyrhizobium japonicum
The Effects of Small Group Exercise on Rate of Perceived Exertion and Mood State in College Students
Please download the pdf version of the abstract
Transplantation of Encapsulated Dopamine-Secreting Cells as a Treatment for Parkinson's Disease
Individual and collective stock dynamics: intra-day seasonalities
We establish several new stylised facts concerning the intra-day
seasonalities of stock dynamics. Beyond the well known U-shaped pattern of the
volatility, we find that the average correlation between stocks increases
throughout the day, leading to a smaller relative dispersion between stocks.
Somewhat paradoxically, the kurtosis (a measure of volatility surprises)
reaches a minimum at the open of the market, when the volatility is at its
peak. We confirm that the dispersion kurtosis is a markedly decreasing function
of the index return. This means that during large market swings, the
idiosyncratic component of the stock dynamics becomes sub-dominant. In a
nutshell, early hours of trading are dominated by idiosyncratic or sector
specific effects with little surprises, whereas the influence of the market
factor increases throughout the day, and surprises become more frequent.Comment: 9 pages, 7 figure
Neutral interstellar hydrogen in the inner heliosphere under the influence of wavelength-dependent solar radiation pressure
With the plethora of detailed results from heliospheric missions and at the
advent of the first mission dedicated IBEX, we have entered the era of
precision heliospheric studies. Interpretation of these data require precision
modeling, with second-order effects quantitatively taken into account. We study
the influence of the non-flat shape of the solar Ly-alpha line on the
distribution of neutral interstellar H in the inner heliosphere. Based on
available data, we (i) construct a model of evolution for the solar Ly-alpha
line profile with solar activity, (ii) modify an existing test-particle code
used to calculate the distribution of neutral interstellar H in the inner
heliosphere so that it takes the dependence of radiation pressure on radial
velocity into account, and (iii) compare the results of the old and new
version. Discrepancies between the classical and Doppler models appear between
~5 and ~3 AU and increase towards the Sun from a few percent to a factor of 1.5
at 1 AU. The classical model overestimates the density everywhere except for a
~60-degr cone around the downwind direction, where a density deficit appears.
The magnitude of the discrepancies appreciably depends on the phase of the
solar cycle, but only weakly on the parameters of the gas at the termination
shock. For in situ measurements of neutral atoms performed at ~1 AU, the
Doppler correction will need to be taken into account, because the
modifications include both the magnitude and direction of the local flux by a
few km/s and degrees, respectively, which, when unaccounted for, would
introduce an error of a few km/s and degrees in determination of the magnitude
and direction of the bulk velocity vector at the termination shock.Comment: 10 pages, 13 figures, accepted by A&
Abiotic formation of O2 and O3 in high-CO2 terrestrial atmospheres
Previous research has indicated that high amounts of ozone (O3) and oxygen
(O2) may be produced abiotically in atmospheres with high concentrations of
CO2. The abiotic production of these two gases, which are also characteristic
of photosynthetic life processes, could pose a potential "false-positive" for
remote-sensing detection of life on planets around other stars.We show here
that such false positives are unlikely on any planet that possesses abundant
liquid water, as rainout of oxidized species onto a reduced planetary surface
should ensure that atmospheric H2 concentrations remain relatively high, and
that O2 and O3 remain low. Our aim is to determine the amount of O3 and O2
formed in a high CO2 atmosphere for a habitable planet without life. We use a
photochemical model that considers hydrogen (H2) escape and a detailed hydrogen
balance to calculate the O2 and O3 formed on planets with 0.2 of CO2 around the
Sun, and 0.02, 0.2 and 2 bars of CO2 around a young Sun-like star with higher
UV radiation. The concentrations obtained by the photochemical model were used
as input in a radiative transfer model that calculated the spectra of the
modeled planets. The O3 and O2 concentrations in the simulated planets are
extremely small, and unlikely to produce a detectable signature in the spectra
of those planets. We conclude that with a balanced hydrogen budget, and for
planets with an active hydrological cycle, abiotic formation of O2 and O3 is
unlikely to create a possible false positive for life detection in either the
visible/near-infrared or mid-infrared wavelength regimes.Comment: 27 pages, 15 figures, Astronomy & Astrophysics accepte
Crystallographic Phase Transition and High-Tc Superconductivity in LaFeAsO:F
Undoped LaFeAsO, parent compound of the newly found high-Tc superconductor,
exhibits a sharp decrease in the temperature-dependent resistivity at ~160 K.
The anomaly can be suppressed by F doping and the superconductivity appears
correspondingly, suggesting a close associate of the anomaly with the
superconductivity. We examined the crystal structures, magnetic properties and
superconductivity of undoped (normal conductor) and 14 at.% F-doped LaFeAsO (Tc
= 20 K) by synchrotron X-ray diffraction, DC magnetic measurements, and ab
initio calculations to demonstrate that the anomaly is associated with a phase
transition from tetragonal (P4/nmm) to orthorhombic (Cmma) phases at ~160 K as
well as an antiferromagnetic transition at ~140 K. These transitions can be
explained by spin configuration-dependent potential energy surfaces derived
from the ab initio calculations. The suppression of the transitions is ascribed
to interrelated effects of geometric and electronic structural changes due to
doping by F- ions.Comment: 22 pages, 8 figures, 2 tables, Supplementary information is included
at the end of the document, accepted for publication in Supercond. Sci.
Techno
Multicenter Adaptation Of The Guide Autonomous Management Of Medication
Rising psychotropic prescriptions and low empowerment of mental health users hamper qualified delivery of mental health services in Brazil and countries providing universal healthcare. This multicentric study performed in three Brazilian cities aimed to develop the Brazilian translation and adaptation upon the Quebecoise-Canadian Gaining Autonomy and Medication (GAM) Guide; and to evaluate the impact of its use on mental health workers education. Intervention Groups (IGs) were held to provide experience sharing on medication as relevant issues were brought up by the guide. Pre- and post- IGs focus groups were held. Major changes to the original text of the Quebecoise handbook were necessary according to the Brazilian scenario. Results show the Brazilian version as a powerful strategy to promote users' participation in decision making concerning treatment as well as the mental health services they are in treatment at. The handbook also has a positive impact on staff education.1643967980Secretaria Municipal de Campinas (2010) Informações da Secretaria Municipal de Campinas Departamento de Saúde, Saúde Mental, , CAMPINASCampos, G.W.S., (2000) Um Método Para Análise E Co-gestão De Coletivos - a Construção Do Sujeito, a Produção De Valor De Uso E a Democracia Em Instituições: O Método Da Roda, , São Paulo: HucitecCampos, G.W.S., Onocko, R.C., Co-construção de autonomia: O sujeito em questão (2005) A Construção Da Clínica Ampliada Na Atenção Básica, pp. 86-107. , CAMPOS, G.W.SMINAYO, M.C.SAKERMAN, M.CUNHA, G.T. (Orgs), São Paulo: HucitecFurtado, J.P., Onocko, R.C., Participation, knowledge production, and evaluative research: Participation by different actors in a mental health study (2008) Cad Saude Publica, 24 (11), pp. 2671-2680Gadamer, H.G., (1997) Verdade E Método: Traços Fundamentais De Uma Hermenêutica Filosófica, , Petrópolis: Editora VozesHull, S.A., Aquino, P., Cotter, S., Explaining variation in antidepressant prescribing rates in east London: A cross sectional study (2005) Fam Pract, 22 (1), pp. 37-42International Narcotics Control Board (2010) Psychotropic Substances, , http://www.incb.org/pdf/technical-reports/psychotropics/2010/Psychotropic_Substances_Publication_2010.pdf, VIENNA. United Nations, Vienna: UN, Disponível em, Acesso em: 04 jul. 2012Kinoshita, R.T., Contratualidade e reabilitação psicossocial (1996) Reabilitação Psicossocial No Brasil, pp. 55-59. , PITTA, A. (Org.), São Paulo: HucitecMaragno, L., Prevalence of common mental disorders in a population covered by the Family Health Program (QUALIS) in Sao Paulo, Brazil (2006) Cad Saude Publica, 22 (8), pp. 1639-1648Marques, C.C., (2012) Entre Nós: Sobre Mudar De Lugar E Produzir Diferenças, , 2012. Dissertação (Mestrado) - Instituto de Psicologia, Universidade Federal do Rio Grande do Sul, Porto AlegreOnocko, C.R.T., Avaliação de estratégias inovadoras na organização da Atenção Primária à Saúde (2012) Rev. Saúde Pública, 46 (1). , http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89102012000100006&lng=en&nrm=iso, São Paulo, Feb, Disponível em, Acesso em: 04 jul. 2012. Epub Dec 13,2011. http://dx.doi.org/10.1590/S0034-89102011005000083Onocko, C.R.T., Furtado, J.P., Narratives: Use in qualitative health-related research (2008) Rev Saude Publica, 42 (6), pp. 1090-1096Otanari, T.M.C., (2011) A Experiência De Participação Dos Residentes De Psiquiatria E Saúde Mental Nos Grupos De Gestão Autônoma Da Medicação? (GAM): Possíveis Efeitos Na Formação, , 2011. Dissertação (Mestrado). Faculdade de Ciências Médicas, Universidade Estadual de Campinas, CampinasRegier, D.A., The NIMH Epidemiologic Catchment Area Program: Historical context, major objectives, and study population characteristics (1984) Arch Gen Psychiatry, 41 (10), pp. 934-941Rodriguez, L., Perron, N., Ouellette, J.N., Psicotrópicos e saúde mental: Escutar ou regular o sofrimento? (2008) Pesquisa Avaliativa Em Saúde Mental: Desenho Participativo E Efeitos Da Narratividade, pp. 125-162. , ONOCKO CAMPOS, R.FURTADO, J.P.PASSOS, E.BENEVIDES, R. (Orgs), São Paulo: HucitecRodriguez, L., Corin, E., Poirel, M.L., Le point de vue des utilisateurs sur l'emploi de la médication en psychiatrie: Une voix ignorée (2001) Revue Québécoise De Psychologie, 22 (2), pp. 1-23Ricouer, P., (1997) Tempo E Narrativa, , Campinas: PapirusRicouer, P., (1990) Interpretação E Ideologias, , Rio de Janeiro: Francisco AlvesSantos, D.V.D., (2009) Uso De Psicotrópicos Da Atenção Primária Do Distrito Sudoeste De Campinas E Sua Relação Com Os Arranjos Da Clínica Ampliada: Uma Pedra No Sapato, , 2009. Dissertação (Mestrado) - Faculdade de Ciências Médicas, Universidade Estadual de Campinas, CampinasVedia, U.C., Study of use of psychiatric drugs in primary care (2005) Aten Primaria, 36 (5), pp. 239-245Winter, F., de Présentation, M., (2007), http://www.ladroit.org/texteforumgam.pdf, François Winter, coordonnateur de L'A-DROIT de Chaudière-Appalaches, lors de la 4ième table ronde du forum international sur les psychotropes des 3-4-5 avril, Disponível em, Acesso em: 04 jul 201
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