Cellulose‐Based Ionogels for Paper Electronics

A new class of biofriendly ionogels produced by gelation of microcellulose thin films with tailored 1‐ethyl‐3‐methylimidazolium methylphosphonate ionic liquids are demonstrated. The cellulose ionogels show promising properties for application in flexible electronics, such as transparency, flexibility, transferability, and high specific capacitances of 5 to 15 μF cm^?2. They can be laminated onto any substrate such as multilayer‐coated paper and act as high capacitance dielectrics for inorganic (spray‐coated ZnO and colloidal ZnO nanorods) and organic (poly[3‐hexylthiophene], P3HT) electrolyte‐gated field‐effect transistors (FETs), that operate at very low voltages (<2 V). Field‐effect mobilities in ionogel‐gated spray‐coated ZnO FETs reach 75 cm² V^?1 s^?1 and a typical increase of mobility with decreasing specific capacitance of the ionogel is observed. Solution‐processed, colloidal ZnO nanorods and laminated cellulose ionogels enable the fabrication of the first electrolyte‐gated, flexible circuits on paper, which operate at bending radii down to 1.1 mm.     

Electrical characteristics of r.f.-sputtered CdTe thin-films for photovoltaic applications

A method of preparing self-doped p- and n-type and In-doped n-type CdTe thin-films for photovoltaic applications has been developed using r.f. sputtering. Ohmic contacts to n-type films with contact resistivity less than 10^?2 Ω — cm² have been obtained. Schottky barrier diode test devices, formed by evaporation of various metals including Au on n-CdTe films, have been examined for electrical and photovoltaic evaluation of the sputtered films. Although S.B. diodes based on In doped films, prepared under Cd overpressure, show promising electrical and photovoltaic performance (V_oc ～ 315 mV, I_sc ～ 4.6mA/cm²), much improvement remains to be made by further control of dopant concentration and structural details of films.     

An Efficient Algorithm for Spectral Analysis of Heart Rate Variability

We present a simple efficient algorithm for the derivation of a heart rate signal from the electrocardiogram. We demonstrate that the amplitude spectrum of this heart rate signal more closely matches that of the input signal to an integral pulse frequency modulation (IPFM) model of the heart's pacemaker than do the spectra of other ECG-derived heart rate signals. The applicability of this algorithm in cross-spectral analysis between heart rate and other physiologic signals is also discussed.     

Identification of proteomic biomarkers in M. Longissimus dorsi as potential predictors of pork quality

Meat quality traits have low heritability and large environmental influences. To predict, improve and manage meat quality, proteomic biomarkers are superior to genetic markers. The objectives of this research were (1) to find associations between proteome profiles of longissimus muscle at slaughter and meat quality accuracies of prediction of traits ranged from 20 up to 80%. Differentially expressed proteins related to drip loss and ultimate pH were identified by NanoLC-FTMSMS. The proteins highlight biological mechanisms that may explain how these traits develop biologically and how they are related to each other.     

Thermisch induzierter Abbau von Disaccharid-Amadori-Verbindungen in quasi wasserfreiem Reaktionsmilieu

Ohne Zusammenfassung     

Organochlorine and mercury residues in the harp seal (Pagophilus groenlandicus)

Samples of blubber, liver, kidney and brain, obtained from 10 male, 6 female neonatal, and 4 lactating female harp seals (Pagophilus groenlandicus), were analysed for DDT, dieldrin, PCB, and total mercury. Methyl mercury levels in blood were also determined. Biocide deposition was not significantly different in female and male ten day old pups. There were no significant differences in biocide levels in the liver of the 14/+ day old males, but in blubber there were significant differences in dieldrin and DDT. There was no clear relationship between biocide levels in the 6-18 year old lactating adults and their pups. Younger adult seals (6 and 7 years) were found to have higher levels of PCB and sigmaDDT levels in their blubber than did older females (10 and 18 years). Wide intraspecific variation was noted in organochlorine and mercury residue levels. Pups taken in 1973 were found to have lower organochlorine residues than pups taken in the same area in 1971. Preliminary investigation indicates that detectable amounts of organochlorine and mercury residues are capable of crossing the placenta in the harp seal.     

A methodological critique of "Interventions for boys with conduct problems."

Reanalyzed G. R. Patterson's (see record 1974-32972-001) data on 27 conduct problem boys which showed moderate success of his behavioral intervention procedures in reducing noxious behaviors and the persistence of this improvement in a follow-up study. It is noted that, although posttreatment means were based on observations of all 27 Ss, the mean at 12-mo follow-up reflects data from only 16 Ss (59% of the original sample). A recomputation of means using only the 16 Ss for whom measures from baseline through the 12-mo follow-up were available revealed substantially diminished treatment effects. The absence of an appropriate control group is also cited as an inadequacy in Patterson's investigation. A comparison of the level of deviant behavior of Ss during baseline with that of dropouts and normal Ss also indicated that the 16 Ss who completed the study were significantly less deviant in the home during baseline than dropouts, but not significantly different from normals. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Position bias and paired-comparison procedure in studies of infant attention.

Examined the effect of position bias on infants' differential responsiveness to visual stimuli. Data were taken from 3 studies by R. A. Haaf and C. Brown (1975) in which a paired-comparison procedure was used. In one study, 32 15-wk-olds and 32 20-wk-olds were presented stimuli which varied along dimensions of complexity and facial resemblance. In 2 other studies, 42 10-wk-olds and 36 15-wk-olds were presented stimuli which varied along dimensions of complexity and organization (facial or nonfacial). Correlational analyses were used to determine the relation between degree of position bias (time spent looking in the dominant direction) and extent of Ss' discrimination among stimuli (time spent looking at each stimulus). Significant negative correlations were found for both the 10-wk-olds and the 15-wk-olds in the latter 2 studies. Further analysis revealed a Stimulus Complexity x Position Bias interaction for the 10-wk-olds. This finding suggests that variability of response times to visual stimuli may be constrained in the presence of position bias. It is concluded that position biases of 95% or more in paired comparison studies impose constraints on both data analysis and interpretation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)