619,766 research outputs found
Phylogeny and expression analysis of C-reactive protein (CRP) and serum amyloid-P (SAP) like genes reveal two distinct groups in fish
This work was funded by British Society of Animal Science/Genesis Faraday to both SAM and SB Immune control of energy reallocation in fish and a BBSRC Research Experience Placements (2010).Peer reviewedPublisher PD
Joint effect of physical activity and sedentary behaviour on cardiovascular risk factors in Chilean adults
Background:
To investigate the associations between combined categories of moderate-to-vigorous physical activity (MVPA) and sedentary behaviour (SB) with markers of adiposity and cardiovascular risk in adults.
Methods:
Overall, 5040 participants (mean age 46.4 years and 59.3% women) from the cross-sectional Chilean National Health Survey 2009–2010 were included in this study. MVPA and SB were measured using the Global Physical Activity questionnaire. Four categories were computed using MVPA- and SB-specific cut-offs (‘High-SB & Active’, ‘Low-SB & Active’, ‘High-SB & Inactive’ and ‘Low-SB & Inactive’).
Results:
Compared to the reference group (‘High-SB & Inactive’), those in ‘High-SB & Active’ and ‘Low-SB & Active’ were less likely to have an obese BMI (OR: 0.67 [0.54; 0.85], P = 0.0001 and 0.74 [0.59; 0.92] P = 0.0007, respectively) and less likely to have metabolic syndrome (OR: 0.63 [0.49; 0.82], P < 0.0001 and 0.72 [0.57; 0.91], P = 0.007), central obesity (OR: 0.79 [0.65; 0.96], P = 0.016 and 0.71 [0.59; 0.84], P < 0.0001), diabetes (OR: 0.45 [0.35; 0.59], P < 0.0001 and 0.44 [0.34; 0.56], P < 0.0001) and hypertension (OR: 0.52 [0.43; 0.63], P < 0.0001 and 0.60 [0.50; 0.72], P < 0.0001), respectively.
Conclusions:
Being physically active and spending less time in SBs was associated with lower adiposity and improvements in cardiovascular risk factors
Theoretical modelling of quaternary GaInAsSb/GaAs self-assembled quantum dots
Trabajo presentado al "Quantum Dot", celebrado en Nottingham (UK) del 26 al 30 de Abril de 2010.InAs/GaAs quantum dots exposed to Sb after growth exhibit spectral changes. We study
in the present paper an idealized nanostructure consisting of a homogeneous distribution of the
quaternary GaInAsSb surrounded by a barrier of GaAs. We nd that the valence band o set is
a critical parameter in modelling its electronic structure. Depending on this value, we predict a
transition from type-I to type-II band alignment at a di erent Sb concentration. The addition
of Sb to reduce the transition energy while keeping a type-I alignment is only of bene t at low
Sb concentrationThis work was supported by the Spanish MICINN (projects TEC2008-06756-C03-01/02/TEC,
CONSOLIDER INGENIO 2010 CSD2006-0019 and CSD2009-00013), the Junta de Andalucía
(PAI research groups TEP-120 and TIC-145; project P08-TEP-03516) and Comunidad Autónoma de Madrid S2009ESP-1503.Peer reviewe
Influence of Salix babylonica extract in combination or not with increasing levels of minerals mixture on in vitro rumen gas production kinetics of a total mixed ration
Plant extracts, with high concentrations of secondary metabolites, are good candidates for enhancing nutrient utilization (Patra et al., 2006; Cedillo et al., 2014). Administration of Salix babylonica (SB) extract to ruminants as feed additives modified in vitro ruminal fermentation in lambs (Jiménez-Peralta et al., 2011; Salem et al., 2014b), improved in vivo digestibility as well as average daily gain of lambs (Salem et al., 2011a, 2014b) and milk production (Salem et al., 2014a). Some plant extracts also improved animal growth and nutrient digestion (Mapiye et al., 2010; Salem et al., 2011a) due to positive impacts of their secondary metabolites on activity of ruminal microorganisms (Jiménez-Peralta et al., 2011) and/or increased amino acid flow to the duodenum (Mueller-Harvey, 2006). This can result in more muscle deposition and, consequently, heavier carcasses (Gleghorn et al., 2004) and improved meat quality (Mapiye et al., 2010).The aim of this study was to determine the effects of increasing levels of two feed additives composed of Salix babylonica (SB) extract and minerals mixture (MM) or their combination on in vitro gas production (GP) and dry matter (DM) degradability of total mixed ration (TMR; 50 concentrate: 50 corn silage, on DM basis). Combinations of four levels of SB extract (0, 0.6, 1.2 and 1.8 mL/g DM) with four levels of MM (0, 0.5, 1.5 and 2.5 g/100 g DM) were evaluated in a completely random design. Samples of TMR (1 g) were weighed in 120 mL serum bottles with addition of SB extract and/or MM. Then, 10 mL of particle free ruminal fluid were added followed by 40 mL of the buffer solution. The GP was recorded at 2, 4, 6, 8, 10, 12, 24, 48 and 72 h of incubation. Addition of SB extract, without MM, increased (P<0.05) asymptotic GP (mL/g DM), the rate of GP (/h), GP and DM degradability (DMD)
Tempura Reengineering
Interval Temporal Logic provides time-dependant formal description of hardware and software. Such formalism is needed for description of behaviors of the middleware of AOmLE project, depending on different scenarios of operation. In order to use ITL, we need an interpreter. Tempura provides executable ITL framework, written in C language. We cannot use Tempura as is, because AOmLE is developed entirely in Java. For this reason we need Java version of Tempura. This paper describes our plan for reengineering of CTempura and creating Java version if the ITL interpreter
Strategies to promote children\u27s school based physical activity : Transform-Us! Mid-intervention findings
Session 202 - School based interventions: paper 276This journal suppl. entitled: Be Avtive 2012Many children engage in suboptimal levels of PA despite the associated health risks. Schools (n=20) in the Transform-Us! program were randomized to one of four intervention arms that target increases in children’s PA (PA), reductions in sedentary behavior (SB), both behaviors (SB+PA) or control current practice (C). This examination focuses on the PA promotion strategies employed in the PA and SB+PA arms compared with the C arm. To promote children’s PA each PA and SB+PA class was provided with sporting and circus equipment; asphalt line markings were installed at the school; and teachers were asked to encourage PA. Grade 3 children at participating schools were invited to take part in evaluation assessments including the completion of a self-report survey. Findings from the PA promotion strategy questions at baseline (Feb–June 2010), and T2 (Nov/Dec) are reported here. Children (n=425, 55% female) were asked to respond (yes/no) to five items asking about social support for PA from their class teacher, which were then summed to create a ‘teacher social support’ scale. Children were also asked to indicate if ‘there are markings on the walls or on the school playground to help us play games’ (perceived availability of line markings); if they are ‘allowed to use school sports equipment during recess and lunch breaks’ (perceived accessibility of sports equipment); and how much they like ‘the areas to play in at school’ using a 5-point Likert scale (perceived school environment). Between baseline and T2, teacher social support increased in both PA (1.7[1.4] vs 2.1[1.4]) and SB arms (1.9[1.4] vs 2.4[1.4) but declined in C (2.0[1.4] vs 1.7[1.5]). For all three arms, increases were seen in perceived availability of line markings (PA: 53.2% vs 69.4%; SB+PA: 59.3% vs 71.4%; C: 60.0% vs 69.8%); perceived accessibility of sport equipment (PA: 87.7% vs 97.2%: SB+PA: 80.7 vs 94%; C: 85.4% vs 97.6%); and perceived school environment (PA: 1.44[0.9] vs 1.42[0.8]; SB+PA: 1.5[0.8] vs 1.6[0.7]; C: 1.4[0.9] vs 1.5[0.7]) between baseline and T2. All findings were significant at a 1% probability level. At the mid-intervention time point, findings suggest that PA strategies have increased perceived availability of line markings, accessibility of sport equipment, and perceived school environment in children allocated to the PA and SB+PA arms. However, there were also unexpected increases in the C arm for three out of four items. Post-intervention findings will add to these preliminary findings
Three-Dimensional Topological Insulators
Topological insulators in three dimensions are nonmagnetic insulators that
possess metallic surface states as a consequence of the nontrivial topology of
electronic wavefunctions in the bulk of the material. They are the first known
examples of topological order in bulk solids. We review the basic phenomena and
experimental history, starting with the observation of topological insulator
behavior in BiSb by spin- and angle-resolved photoemission
spectroscopy and continuing through measurements on other materials and by
other probes. A self-contained introduction to the single-particle theory is
then given, followed by the many-particle definition of a topological insulator
as a material with quantized magnetoelectric polarizability. The last section
reviews recent work on strongly correlated topological insulators and new
effects that arise from the proximity effect between a topological insulator
and a superconductor. While this article is not intended to be a comprehensive
review of what is already a rather large field, we hope that it will serve as a
useful introduction, summary of recent progress, and guideline to future
directions.Comment: 53 pages, 9 figures, 1 table. Preprint version from June 2010 of
invited article for Annual Review of Condensed Matter Physics. Final edited
version will be published online c. January 201
Total Vertex Irregularity Strength of Trees with Maximum Degree Five
In 2010, Nurdin, Baskoro, Salman and Gaos conjectured that the total vertex irregularity strength of any tree T is determined only by the number of vertices of degrees 1, 2 and 3 in T. This paper will confirm this conjecture by considering all trees with maximum degree five. Furthermore, we also characterize all such trees having the total vertex irregularity strength either t1, t2 or t3, where t_{i} = \lceil (1+\sum\sb{j=1}\sp{i}n_{j})/(i+1)\rceil and ni is the number of vertices of degree i
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