Effects of postharvest UV‐C treatment on carotenoids and phenolic compounds of vine‐ripe tomatoes

Light red tomatoes were exposed to different doses of ultraviolet C (UV‐C) irradiation (1.0, 3.0 and 12.2 kJ m^?2). After treatment, the tomatoes were stored for 2 days at room temperature, and then analysed to determine the effect of irradiation on the main antioxidants, carotenoids and phenolic compounds and the results compared with the control samples. The lycopene content was found to have increased by 14% with respect to the control samples, while β‐carotene decreased. Cis‐isomers from lycopene also increased when the tomatoes were exposed to irradiation for more than 3 h. UV‐C irradiation also had a positive effect on total phenolic compounds; however, the same effect was not observed in the individually analysed phenolic compounds. While chlorogenic and ferulic acids increased in content, naringenin and rutin contents decreased. These results suggest that UV‐C irradiation of tomatoes could improve the beneficial effect of red tomatoes for human health by increasing the levels of certain bioactive compounds; it could also be used to obtain higher content of bioavailability components, such as cis‐isomers from lycopene.     

Quality assessment of dehydrated red bell pepper using tempering drying cycles

Quality assessment of red bell pepper dices preserved through batch dehydration introducing tempering cycles were performed in this work. The parameters considered were: the percentages of ascorbic acid and final antioxidant activity retention, as well as the influence of calcium chloride on diffusivity and colour values. Although, a similar final moisture content was reached through different red bell pepper dehydration processes, but the one with tempering cycles had better qualities than those without tempering. Ascorbic acid and final antioxidant activity retention showed higher values and so were colour intensities compared to control samples in all cases. In respect to the effective diffusivity coefficients, there was an increment as the calcium chloride concentration increased. As of the treatments with tempering cycles, the best scheme was 15 min drying time and 30 min tempering time at 60 °C.     

Improvement of Water Status Methodology for Leafy Vegetables Reduces Consumption of Time, Skilled Labor, and Laboratory Resources

When determining the water status of leafy vegetables with oven-drying techniques, consumption of time and resources is inevitable. The aim of this work was to evaluate the performance of both relative water content (RWC) and free water and bound water content (FW–BW) techniques to obtain the water content index (WC) of different leafy vegetables in order to dispense with the traditional methodology for water content determination. By doing this, not only consumption of time is reduced, but also skilled labor and laboratory resources. Butterhead lettuces harvested at different growing stages and stored at different postharvest conditions were evaluated. In all cases, water content values obtained with RWC technique were statistically equivalent to those obtained with the traditional methodology. Instead, water content values obtained with FW–BW technique were considerably higher than the original WC. Consequently, using RWC technique data to obtain water content, the time required to determine water status in butterhead lettuce is reduced by 25%. In addition, fresh plants of swiss chard, akusay (chinese cabbage), and romaine lettuce were evaluated in order to validate the simplified methodology. Results obtained were similar to those observed for butterhead lettuce.     

Parenting the traumatized child: Attending to the needs of nonoffending caregivers of traumatized children.

While there is a growing literature on the impact of trauma on children, there has been relatively little attention to the needs of their caregivers, who are themselves at risk for elevated levels of stress. The current article draws from the broader literature on parenting under stress and the literature on interventions with parents of sexually abused children to outline the need for interventions for caregivers of multiply traumatized children. It reviews components of an intervention model derived from the literature on general parenting interventions as well as the growing literature on trauma treatment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Never talk to your client about architecture

This paper examines nineteenth century technology related to settler housing in New Zealand, and asks in particular what use British settlers had for cast iron prefabrication. Early accounts in diaries and letters focus upon the necessary adaptability of both settlers and their accommodation when different cultures met, and on the influence of fashions in materials and construction methods on form. Through various combinations - European and Maori construction, local materials, familiar form and ingenious additions - a New Zealand domestic vernacular began.     

Preschool children's social status and maternal instructions to assist group entry.

Mothers' preparatory instructions (comments, helpful advice, and suggestions) intended to assist their child in subsequently joining the play of an unknown pair of children were studied. What mothers said to their child while they actually joined in (contemporaneous instructions) was investigated, as well as their claims about the kind of feedback they would give the child after the play. Mothers of popular, rejected, and neglected children were compared. It was hypothesized that the instructions mothers gave would parallel the known group-entry behavior of these groups of children. Hypotheses were substantially supported for mothers of popular children, moderately supported for mothers of neglected children, and less supported for mothers of rejected children. The most consistent finding was that mothers of popular children were more likely to suggest a group-oriented entry strategy to their child. These results tend to support previous studies suggesting that there are links between the social behavior of parents and their children and that family experiences may be involved in the acquisition of peer relationship skills. The mechanisms by which such family influence might operate are discussed. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

When doing better means feeling worse: The effects of categorical cutoff points on counterfactual thinking and satisfaction.

Counterfactual thoughts of "what might have been" have been shown to influence emotional responses to outcomes. The present investigation extends this research by proposing a model of how categorical cutoff points, or arbitrary values that impose qualitative boundaries on quantitative outcomes, induce counterfactual thoughts and influence individuals' satisfaction. In particular, just making a cutoff for a category is hypothesized to elicit downward counterfactual comparisons, boosting satisfaction, whereas just missing a cutoff prompts upward counterfactual thoughts, decreasing satisfaction. In some circumstances, this asymmetry can reverse the usual relationship between objective outcome and satisfaction, causing people who do objectively better to feel worse than those they outperform. This hypothesis is supported by the results of 1 naturalistic study and 2 scenario experiments. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

MMPI-2 profiles of adult women with child sexual abuse histories: Cluster-analytic findings.

This study used a cluster analysis to examine the clinical profiles of female survivors of child sexual abuse. Eighty-five participants who presented for group therapy to deal specifically with issues related to sexual abuse completed the revised version of the Minnesota Multiphasic Personality Inventory (MMPI-2; J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 1989) as part of an extensive assessment procedure. The cluster-analytic procedure used in this study allowed 5 subgroups within the population to emerge, supporting the idea that women who report having been sexually abused as children are not a homogeneous group. Additional analyses indicated differences on the basis of cluster membership on the MMPI-2 content scales, as well as other measures of psychological distress. The treatment implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Inside Vertical-Cavity Surface-Emitting Lasers: Extracting the Refractive Index From Spatial-Spectral Mode Images

We present a method to extract the internal effective refractive index of a vertical-cavity surface-emitting laser (VCSEL) from its transverse mode images. High spatial and spectral resolution mode images of an oxide-guided VCSEL were obtained using an etalon filter and an imaging spectrometer. The refractive index and the oxide radius were extracted from the field intensity distribution and the spectral wavelength of the laser modes. The procedure was repeated at two different currents and both gave a refractive index step of 0.046 plusmn 0.006 with a 14.1-mum oxide diameter. With several degrees of freedom for error available in the refractive index extraction, this method may be extended to ion-implanted, photonic crystal, and noncircular devices