Recollection rejection: How children edit their false memories.

A new methodology is presented for studying children's ability to suppress memory reports of false-but-gist-consistent events, one that measures children's use of a specific editing operation (recollection rejection) that suppresses false reports by accessing verbatim traces of true events. Children make memory reports under 2 instructional conditions, verbatim and gist, and the data are analyzed with fuzzy-trace theory's conjoint-recognition model. Application of the new methodology in studies of children's false memory for narrative events revealed that (a) false-memory editing increases dramatically between early and middle childhood, (b) even young children spontaneously edit their false memories, (c) measures of children's false-memory editing react appropriately to experimental manipulations, and (d) developmental reductions in the incidence of false-memory reports are primarily due to developmental improvements in verbatim memory ability (rather than to decreases in the formation of false memories). Implications for child forensic interviewing are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Integrated Energy and Trust-Based Semi-Markov Prediction for Lifetime Maximization in Wireless Sensor Networks

Many of today’s computing and communication models are distributed systems that are composed of autonomous computational entities that communicate with each other, usually by passing messages. Distributed systems encompass a variety of applications and wireless sensor networks (WSN) is an important application of it. The tiny, multiple functionality and low power sensor nodes are considered to be interconnected in the WSN for efficient process of aggregating and transmitting the data to the base station. The clustering-based schemes of sensor networks are capable of organizing the network through the utilization of a specifically designated node termed as the cluster head for the objective of energy conservation and data aggregation. Further, the cluster head is responsible for conveying potential information collected by the cluster member nodes and aggregate them before transmitting it to the base station. In this paper, a Reliable Cluster Head Selection Technique using Integrated Energy and Trust-based Semi-Markov Prediction (RCHST-IETSMP) is proposed with the view to extend the lifetime of sensor networks. This proposed RCHST-IETSMP incorporated two significant parameters associated with energy and trust for effective selection of cluster head facilitated through the merits of Semi-Markoc prediction integrated with the Hyper Erlang distribution process. The simulation results of the proposed RCHST-IETSMP scheme is proving to be efficient in upholding the residual energy of the network and the throughput to a maximum level of 23% and 19% predominant to the trust and energy-based clustering schemes considered for investigation.

     

Hydrogenation of naphthalene on NiMo- Ni- and Ru/Al2O3 catalysts: Langmuir–Hinshelwood kinetic modelling

The importance of the hydrodearomatisation (HDA) is increasing together with tightening legislation of fuel quality and exhaust emissions. The present study focuses on hydrogenation (HYD) kinetics of the model aromatic compound naphthalene, found in typical diesel fraction, in n-hexadecane over a NiMo (nickel molybdenum), Ni (nickel) and Ru (ruthenium) supported on trilobe alumina (Al₂O₃) catalysts. Kinetic reaction expressions based on the mechanistic Langmuir–Hinshelwood (L–H) model were derived and tested by regressing the experimental data that translated the effect of both naphthalene and hydrogen concentration at a constant temperature (523.15 and 573.15 K over the NiMo catalyst and at 373.15 K over the Ni and Ru/Al₂O₃ catalysts) on the initial reaction rate. The L–H equation, giving an adequate fit to the experimental data with physically meaningful parameters, suggested a competitive adsorption between hydrogen and naphthalene over the presulphided NiMo catalyst and a non-competitive adsorption between these two reactants over the prereduced Ni and Ru/Al₂O₃ catalysts. In addition, the adsorption constant values indicated that the prereduced Ru catalyst was a much more active catalyst towards naphthalene HYD than the prereduced Ni/Al₂O₃ or the presulphided NiMo/Al₂O₃ catalyst.     

Acceptability and safety of novel infant porridges containing lyophilized meat powder and iron-fortified wheat flour

BACKGROUND: Lyophilized meat powder with iron-fortified wheat flour can be used to produce an infant porridge with bioavailable iron, but its acceptability and safety are unknown. OBJECTIVE: To evaluate the acceptability and safety of porridges containing lyophilized meat powder and iron-fortified wheat flour. METHODS: Peruvian mothers' input was used to develop porridges without (no meat) and with meat powder (low or high chicken liver, low or high chicken thigh). Acceptability was determined by maternal hedonic scoring, 9-day infant intake, and videotape analysis of how well infants liked each porridge. Dry and cooked porridges and meat ingredients were tested for microorganisms; meats were tested for pesticides. RESULTS: Mothers gave higher acceptability scores to the no-meat porridge, followed in order by low and high quantities of meat powder (e.g., mean +/- SD "taste"scores were 4.5 +/- 0.9 for the no-meat, 3.7 +/- 1.1 for the low-liver, and 3.3 +/- 1.1 for the high-liver porridges, p = .0001). Infants' porridge intake did not differ: 61.4 +/- 47.1 g of no-meat, 62.1 +/- 44.9 g of low-thigh, and 67.5 +/- 42.0 g of low-liver (p = .7), as supported by the video analysis. Microbiologic safety was acceptable except for marginally acceptable molds and yeasts in dry ingredients. No pesticide residues were detected. CONCLUSIONS: Despite mothers' clear preference for no-meat porridges, infants consumed equal amounts of porridges with and without meat. Thus, if mothers can be convinced to feed the meat-containing porridges to the infants despite their own preferences, the infants will consume these porridges. The mold and yeast content of the porridge ingredients must be reduced.     

Thermophysical and optical properties of NiCo2O4@ZrO2: A potential composite for thermochemical processes

The use of solar energy through thermochemical processes is an important approach to drive endothermic reactions to produce solar fuels such as hydrogen or syngas. This work reports the preparation and the thermophysical characterization of a porous composite based on zirconium dioxide (ZrO₂) and nickel cobaltite (NiCo₂O₄) nanoparticles for applications in thermochemical processes at high temperatures. The ZrO₂ supports were modified with NiCo₂O₄ nanoparticles by a low-cost and straightforward impregnation process following by thermal treatment at 773 K. The impregnated NiCo₂O₄ obtained is formed by nanoparticles with an average size of 50 nm favoring a complete and homogenous covering of ZrO₂ supports. The thermal properties of ZrO₂ supports and NiCo₂O₄@ZrO₂ composites were evaluated in the temperature range from 300 to 1250 K. Besides, the solar absorbance and thermal emittance values were measured. After depositing the nickel cobaltite nanoparticles in the supports, it has been observed that the thermal properties have changed slightly so that the added nanoparticles do not significantly change the thermal performance of the materials. The nickel cobaltite nanoparticles deposited on the surface of the ZrO₂ supports causes a strong increase in solar absorbance. This improves the efficiency of solar thermal conversion. Our results have shown that NiCo₂O₄@ZrO₂ has excellent characteristics to be used in solar thermochemical processes.     

Satellites versus fibre optic cables

This paper compares the capacities and costs of the new fibre optic submarine cables and the forthcoming INTELSAT VI satellites. The results indicate that, contrary to generally accepted beliefs, satellites are cheaper than fibre optic cables on a per circuit point-to-point basis. Moreover, satellites are shown to possess the advantage of superior overall connectivity capability, in addition to simple point-to-point capacity. This is expected to be very important in the choice of future cost effective facilities.