4,873 research outputs found
Cell walls of the dimorphic fungal pathogens Sporothrix schenckii and Sporothrix brasiliensis exhibit bilaminate structures and sloughing of extensive and intact layers
This work was supported by the Fundação Carlos Chagas de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), grants E-26/202.974/2015 and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), grants 229755/2013-5, Brazil. LMLB is a senior research fellow of CNPq and Faperj. NG acknowledged support from the Wellcome Trust (Trust (097377, 101873, 200208) and MRC Centre for Medical Mycology (MR/N006364/1). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Peer reviewedPublisher PD
Variação linguística e ensino: a contribuição dos encontros de sociolinguística
Neste Número Especial da Tabuleiro de Letras, sistematizamos as colaborações do VIII Encontro de Sociolinguística, de modo a difundir e contribuir para o empreendimento educacional brasileiro, divididas em três partes: 1. Variação e ensino; 2. Crenças, atitudes e variação linguística.3. A variação social e espacial nos dados do ALiB e de outros corpora
Over-pressurized bioreactors : application to microbial cell cultures
In industrial biotechnology, microbial cultures are exposed to different local pressures inside bioreactors. Depending on the microbial species and strains, the increased pressure may have detrimental or beneficial effects on cellular growth and product formation. In this review, the effects of increased air pressure on various microbial cultures growing in bioreactors under moderate total pressure conditions (maximum, 15 bar) will be discussed. Recent data illustrating the diversity of increased air pressure effects at different levels in microbial cells cultivation will be presented, with particular attention to the effects of oxygen and carbon dioxide partial pressures on cellular growth and product formation, and the
concomitant effect of oxygen pressure on antioxidant cellular defense mechanisms.The authors thank the FCT Strategic Project PEst-OE/EQB/LA0023/2013 and the Project "BioInd-Biotechnology and Bioengineering for improved Industrial and Agro-Food processes, REF. NORTE-07-0124-FEDER-000028," cofunded by the Programa Operacional Regional do Norte (ON.2-O Novo Norte), QREN, FEDER. A special aknowledgement is given to FCT for the support to the improvement of infrastructures awarded by the Project RECI/BBB-EBI/0179/2012 (FCOMP-01-0124-FEDER-027462)
Over-pressurized bioreactors : application to microbial cell cultures
In industrial biotechnology, microbial cultures are exposed to different local pressures inside bioreactors. Depending on the microbial species and strains, the increased pressure may have detrimental or beneficial effects on cellular growth and product formation. In this review, the effects of increased air pressure on various microbial cultures growing in bioreactors under moderate total pressure conditions (maximum, 15 bar) will be discussed. Recent data illustrating the diversity of increased air pressure effects at different levels in microbial cells cultivation will be presented, with particular attention to the effects of oxygen and carbon dioxide partial pressures on cellular growth and product formation, and the
concomitant effect of oxygen pressure on antioxidant cellular defense mechanisms.The authors thank the FCT Strategic Project PEst-OE/EQB/LA0023/2013 and the Project "BioInd-Biotechnology and Bioengineering for improved Industrial and Agro-Food processes, REF. NORTE-07-0124-FEDER-000028," cofunded by the Programa Operacional Regional do Norte (ON.2-O Novo Norte), QREN, FEDER. A special aknowledgement is given to FCT for the support to the improvement of infrastructures awarded by the Project RECI/BBB-EBI/0179/2012 (FCOMP-01-0124-FEDER-027462)
Searching for realistic 4d string models with a Pati-Salam symmetry -- Orbifold grand unified theories from heterotic string compactification on a Z6 orbifold
Motivated by orbifold grand unified theories, we construct a class of
three-family Pati-Salam models in a Z6 abelian symmetric orbifold with two
discrete Wilson lines. These models have marked differences from
previously-constructed three-family models in prime-order orbifolds. In the
limit where one of the six compactified dimensions (which lies in a Z2
sub-orbifold) is large compared to the string length scale, our models
reproduce the supersymmetry and gauge symmetry breaking pattern of 5d orbifold
grand unified theories on an S1/Z2 orbicircle. We find a horizontal 2+1
splitting in the chiral matter spectra -- 2 families of matter are localized on
the Z2 orbifold fixed points, and 1 family propagates in the 5d bulk -- and
identify them as the first-two and third families. Remarkably, the first two
families enjoy a non-abelian dihedral D4 family symmetry, due to the geometric
setup of the compactified space. In all our models there are always some color
triplets, i.e. (6,1,1) representations of the Pati-Salam group, survive
orbifold projections. They could be utilized to spontaneously break the
Pati-Salam symmetry to that of the Standard Model. One model, with a 5d E6
symmetry, may give rise to interesting low energy phenomenology. We study gauge
coupling unification, allowed Yukawa couplings and some of their
phenomenological consequences. The E6 model has a renormalizable Yukawa
coupling only for the third family. It predicts a gauge-Yukawa unification
relation at the 5d compactification scale, and is capable of generating
reasonable quark/lepton masses and mixings. Potential problems are also
addressed, they may point to the direction for refining our models.Comment: 58 pages, 5 figures, 4 tables, revtex4 with ams fonts. Version to
appear in NP
The influence of wrist posture, grip type, and grip force on median nerve shape and cross‐sectional area
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/136715/1/ca22871_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/136715/2/ca22871.pd
Search for and Using Genetic Programming Event Selection
We apply a genetic programming technique to search for the double Cabibbo
suppressed decays and .
We normalize these decays to their Cabibbo favored partners and find
\Lambda_c^+ \to p K^+ \pi^-\Lambda_c^+ \to p K^-
\pi^+ and D_s^+ \to K^+ K^+
\pi^-D_s^+ \to K^+ K^- \pi^+ where
the first errors are statistical and the second are systematic. Expressed as
90% confidence levels (CL), we find and respectively.
This is the first successful use of genetic programming in a high energy
physics data analysis.Comment: 10 page
A Non-parametric Approach to the D+ to K*0bar mu+ nu Form Factors
Using a large sample of D+ -> K- pi+ mu+ nu decays collected by the FOCUS
photoproduction experiment at Fermilab, we present the first measurements of
the helicity basis form factors free from the assumption of spectroscopic pole
dominance. We also present the first information on the form factor that
controls the s-wave interference discussed in a previous paper by the FOCUS
collaboration. We find reasonable agreement with the usual assumption of
spectroscopic pole dominance and measured form factor ratios.Comment: 14 pages, 5 figures, and 2 tables. We updated the previous version by
changing some words, removing one plot, and adding two tables. These changes
are mostly stylisti
Measurements of Branching Ratios
Using data collected by the fixed target Fermilab experiment FOCUS, we
measure the branching ratios of the Cabibbo favored decays , , and relative to to be
, , and ,
respectively. We report the first observation of the Cabibbo suppressed decay
and we measure the branching ratio relative to
to be . We also set 90%
confidence level upper limits for and relative to to
be 0.12 and 0.05, respectively. We find an indication of the decays and and set
90% confidence level upper limits for the branching ratios with respect to
to be 0.12 and 1.72, respectively. Finally, we
determine the 90% C.L. upper limit for the resonant contribution relative to to be 0.10.Comment: 14 pages, 8 figure
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