303 research outputs found
Nutritional and mineral variability in 52 accessions of common bean varieties (Phaseolus vulgaris L.) from Madeira Island
The Phaseolus vulgaris L. is one of the traditional and most important leguminous crops in the
Island of Madeira. The island’s bioclimatic tiers, agro-ecological environment and traditional
farming practices had a great influence on the evolution of regional bean landraces. The variabili ty of the nutritional and mineral seeds composition of 59 accessions of the Madeiran landraces,
standard and commercial varieties was evaluated. Wide ranges of variability in biochemical pa rameters were reported among the Madeiran landraces, being the best sources of protein and
mineral nutrition, according to the statistical results and literature comparative evaluation. Spe cifically, the content (g per 100 g DW) of ash ranged from 3.64 - 5.67, lipids from 0.57 - 2.86, pro tein from 18.55 - 29.69, starch from 23.40 - 52.65, soluble sugars from 2.97 - 6.84, while content of
dry matter was from 83.35 - 93.55. The seeds also contained (per 100 g DW) between 2.55 - 4.83 g
N, 0.30 - 7.50 g P, 1.30 - 2.49 g K, 0.10 - 0.18 g Mg, 4.10 - 10.00 mg Fe, 50.0 - 1.40 mg Cu, 2.20 - 5.00
mg Zn, 0.90 - 3.80 µg Mn and 0.20 - 2.40 µg B. This variability implies that the screened germplasm
could serve as a source for breeding new varieties with improved biochemical and nutritional
traits or could be highly recommended to meet specific dietary requirements. The cultivar Vagin ha Grossa (ISOP 713) revealed low carbohydrate content that could be a good food choice for di abetics, while cultivar Vermelho (ISOP 724) bean should be offered as a valuable alternative
source of protein and minerals in the local diet.info:eu-repo/semantics/publishedVersio
Ecology and diversity of Solanum trisectum Dunal from Madeira Island: implications for Its conservation
Solanum trisectum Dunal is an endemic Solanaceae of Madeira Island (Portugal), considered critically endangered
due to its extreme rarity. Since its discovery this species has shown a narrow distributional range mainly on the
northern side of the island, with scattered and small populations and large time gaps between sightings. The present
work aimed to understand the underlying ecological underpinnings for this species rarity towards an effort to
increase the success of conservation actions. Data on historical locations, environmental conditions field surveys,
reinforcement in situ and ex situ germination trials were obtained. The species was found to currently occur only
in two wild populations and two reinforcement sites, amounting to twenty-four plants in total. Statistical analysis of
these data related wild populations and successful reinforcement sites, separating them from other sites where the
reinforcement did not succeed. This suggests that the successful reinforcement sites showed conditions more similar
to wild population sites compared to non-successful ones. The data obtained supports the hypothesis that S. trisectum
distribution and rarity is determined by species specific habitat needs, i.e., abiotic conditions, which have been for
the first time assessed during the present work. Further, this study also reinforces the classification of S. trisectum as
a top priority species for conservation.Prospecting, Monitoring and Conservation of Normania triphylla in Madeira
(Mohamed bin Zayed Species (project number 13255498)) and Madeira PO 14-20, contract CASBIO (ref M1420-01-
0145-FEDER-000011 ).info:eu-repo/semantics/publishedVersio
Screening for Drought Tolerance in Thirty Three Taro Cultivars
Taro [Colocasia esculenta (L.) Schott] is a root crop which is an important staple food in many regions of the world, producing 10.5 million tonnes on 1.4 million hectares a year. The crop is cultivated in wet (rain fed) or irrigated conditions, requiring on average 2,500 mm water per year, and in many countries it is cultivated in flooded plots. It is estimated that taro production could decrease by 40% as a result of the increase in drought and other severe events. In this work, thirty three accessions, including local cultivars, selected and hybrid lines were submitted to long duration drought stress and screened for tolerance. Twelve physiological, morphological and agronomic traits were measured at harvest, and subject to multivariate analysis. Stress indices, Water Use Efficiency and Factorial Analysis were useful for discriminating accessions regarding drought tolerance and yield stability, and drought tolerant and susceptible cultivars were identified. Our results confirm that different taro cultivars have different drought avoidance and tolerance strategies to cope with water scarcity. Better yield performers minimised biomass and canopy loss, while tolerance was observed in cultivars that presented low potential yield, but efficiently transferred resources to enhance corm formation. Among the 33 accessions, two local cultivars showed high yield stability and could be considered as suitable parents for breeding programs, while two others are well adapted to drought, but with overall low yield potential
Activated Random Walkers: Facts, Conjectures and Challenges
We study a particle system with hopping (random walk) dynamics on the integer
lattice . The particles can exist in two states, active or
inactive (sleeping); only the former can hop. The dynamics conserves the number
of particles; there is no limit on the number of particles at a given site.
Isolated active particles fall asleep at rate , and then remain
asleep until joined by another particle at the same site. The state in which
all particles are inactive is absorbing. Whether activity continues at long
times depends on the relation between the particle density and the
sleeping rate . We discuss the general case, and then, for the
one-dimensional totally asymmetric case, study the phase transition between an
active phase (for sufficiently large particle densities and/or small )
and an absorbing one. We also present arguments regarding the asymptotic mean
hopping velocity in the active phase, the rate of fixation in the absorbing
phase, and survival of the infinite system at criticality. Using mean-field
theory and Monte Carlo simulation, we locate the phase boundary. The phase
transition appears to be continuous in both the symmetric and asymmetric
versions of the process, but the critical behavior is very different. The
former case is characterized by simple integer or rational values for critical
exponents (, for example), and the phase diagram is in accord with
the prediction of mean-field theory. We present evidence that the symmetric
version belongs to the universality class of conserved stochastic sandpiles,
also known as conserved directed percolation. Simulations also reveal an
interesting transient phenomenon of damped oscillations in the activity
density
Theoretical/practical teaching in nursing graduation for mental health / Ensino teórico/prático na graduação em enfermagem para atuação em saúde mental
Objetivo: analisar o ensino teórico/prático em Saúde Mental e Psiquiatria recebido durante a graduação em enfermagem. Método: estudo quantitativo, desenvolvido com 44 enfermeiros de uma Rede de Atenção Psicossocial do Município de São Paulo por meio de questionário validado. Resultados: 72,7% dos enfermeiros se sentem despreparados para lidar com Saúde Mental pela primeira vez, 68,2% consideram que o conteúdo foi pouco explorado e 84,1% tem interesse em fazer cursos na área. Conclusão: há dualidade no ensino teórico/prático ofertado pelas instituições de ensino superior, configurando a necessidade de que a formação seja revista para que enfermeiros generalistas consigam atender as demandas de Saúde Mental nos diversos campos de atuação profissional de acordo com o paradigma da Reforma Psiquiátrica e dos pressupostos da Reabilitação Psicossocial.
SIMANIHOT: A PROCESS-BASED MODEL FOR SIMULATING GROWTH, DEVELOPMENT AND PRODUCTIVITY OF CASSAVA
Supersymmetry Without Prejudice
We begin an exploration of the physics associated with the general
CP-conserving MSSM with Minimal Flavor Violation, the pMSSM. The 19 soft SUSY
breaking parameters in this scenario are chosen so as to satisfy all existing
experimental and theoretical constraints assuming that the WIMP is a
conventional thermal relic, ie, the lightest neutralino. We scan this parameter
space twice using both flat and log priors for the soft SUSY breaking mass
parameters and compare the results which yield similar conclusions. Detailed
constraints from both LEP and the Tevatron searches play a particularly
important role in obtaining our final model samples. We find that the pMSSM
leads to a much broader set of predictions for the properties of the SUSY
partners as well as for a number of experimental observables than those found
in any of the conventional SUSY breaking scenarios such as mSUGRA. This set of
models can easily lead to atypical expectations for SUSY signals at the LHC.Comment: 61 pages, 24 figs. Refs., figs, and text added, typos fixed; This
version has reduced/bitmapped figs. For a version with better figs please go
to http://www.slac.stanford.edu/~rizz
Preservatives and neutralizing substances in milk: analytical sensitivity of official specific and nonspecific tests, microbial inhibition effect, and residue persistence in milk
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