19 research outputs found

    RABBOT - Exploring Shared Awareness in Virtual Reality

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    This thesis explores the possibilities of generating shared awareness in virtual reality (VR) experience between a head-mounted display (HMD) wearer and other observers in the same physical space by merging wearable technology, augmented reality, asymmetric game design and wireless communications in the internet of things (IoT). By employing the methodology of Research Through Design (RTD), this thesis project develops a series of prototypes to inform the outcome RABBOT -- featuring a modified VR head-mounted display and asymmetric mobile game experiences with an embedded communication system to create opportunities for shared awareness amongst players. Overall this thesis argues that an engaging VR experience need not focus exclusively on the HMD wearer but also include other audiences in the same physical space

    This is Research; ACE Lab: COntextual REality (CORE) - Enhancing Environments

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    Designing high-bandwidth communication paradigms for individuals within smart environments, using immersive interfaces, computer vision, and context-aware information systems

    PO-098 Effect of HIIT on mitochondrial telomerase of skeletal muscle in aged rats: There is no full text article associated with this abstract

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    Objective The HIIT and moderate-intensity exercise are two different exercise models among the public fitness. In recent years, HIIT become more and more popular, unfortunately, there is a tremendous lack of research being done effects of mitochondrial reverse transcriptase (TERT) on age-related degeneration of skeletal muscle by HIIT. The purpose of this study was to compare the HIIT group and moderate-intensity group, and research difference of telomerase expression and cardiopulmonary endurance between the exercise group and the quiet control group was discussed. Methods  fifty-nine male Wistar rats were divided into three groups at random: control group (Q=19), moderate-intensity intervention group (M=20), and HIIT intervention group (H=20). The rats in Q group did not any exercise, and the rats in M group developed the exercise with 60% VO2max intensity for 8 weeks. H group did a training program for an 8-week exercise with alternating 40%, 60%, and 80% VO2max intensities. The rats in the experimental group were exercised for 50 minutes every day and trained for 5 days per week. After the baseline value group was sampled, each group of rats was selected after the training reached the specified number of weeks (4 and 8 weeks), and the maximum oxygen uptake test was performed before the material was taken. Single factor analysis of variance were used to assess differences in VO2max, and expression of protein between conditions. Results It was found that H group VO2max was significantly higher than M group and Q group (P<0.05). At same time, the mTERT expression of the M group at the 4th week was significantly higher than that of the Q group (P<0.05). The mTERT expression in group H was significantly higher than that in group Q at week 8 (P<0.05).There was no significant difference between the H group and the Q group at 8th week (P<0.05). Conclusions 1. HIIT exercise lasting for 8 weeks can effectively inhibit the decrease of maximal oxygen uptake in aging rats compared with moderate exercise. 2. HIIT training for 8 weeks promotes the expression of mTERT; 3. The maintenance of VO2max in aging rats may be related to the enhancement of mitochondrial antioxidant function by HIIT-promoted TERT to mitochondrial translocation

    PO-082 16-Week high intensity interval training does not alter LKB1 and AMPKĪ± protein in Rats Liver

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    Objective Liver, as one of the most important organs involved in lipids and glucose metabolism, yet no study has examined the response of liver kinase B1 (LKB1) and AMP-activated protein kinase Ī±(AMPKĪ±) signaling after high intensity interval training. This study aims to evaluate the effect of 16-week high intensity interval training intervention on the expression of LKB1态AMPKĪ± in liver of aging rats. Methods 8 -month-old male Wistar ratsļ¼ˆn=40ļ¼‰were randomly divided into control group (C) and HIIT group (H). Group H with 70%-90%-50%VO2max intensity training for 50min/ day, 5 days / week, lasted for 16 weeks. Rats were killed on 0, 8 and 16 weeks. We examined the protein expression of LKB1 and AMPKĪ± in liver. Proteins were analyzed by western blot analysis. Data are meanĀ±SD; for ANOVA, p<0.05 was significant. Results The AMPKĪ± levels in group C and group H increased with time and there was no significant difference between the groups. The content of LKB1 in group C and group H both increased first and then decreased, but there was no significant difference between the groups. Conclusions 16-week high intensity interval training intervention had no effect on LKB1, AMPKĪ± protein expression in aging rats

    Microwave-Assisted Synthesis of Phenanthridines by Radical Insertion/Cyclization of Biphenyl Isocyanides

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    A rapid microwave-assisted approach for the synthesis of phenanthridine derivatives from the radical insertion/cyclization reaction of biphenyl isocyanides with a CĀ­(sp<sup>3</sup>)ā€“H bond adjacent to a heteroatom has been developed. The protocol achieves wide substrate scope and good to excellent yields. The kinetic isotope effect (KIE) studies, radical inhibition studies, and Hammett plot analysis clearly disclose that the current reaction supports a radical mechanism

    Optimization of Ethanol Detection by Automatic Headspace Method for Cellulose Insulation Aging of Oil-immersed Transformers

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    The method using ethanol to evaluate the cellulose insulation aging condition of oil-immersed transformers has been proposed. At present, the dominating method for detecting ethanol in insulating oil is to use headspace&ndash;gas-chromatography&ndash;mass-spectrometry (HS-GC-MS). However, the problem of quantitative inaccuracy will be sometimes encountered in the actual detection process due to improper instrument parameter setting and improper manual operation. In this study, as an aging marker, ethanol in transformer insulating oil was separated by using VF-624 ms capillary column. The effects of gas-chromatography&ndash;mass-spectrometry (GC-MS) optimization conditions, headspace equilibrium temperature, headspace equilibrium time and standard solution preparation method on the determination of ethanol content in oil were discussed, and optimized measures were proposed. The experimental results showed that the measurement can be more accurate under the headspace temperature of 80 &deg;C and the headspace time of 40 min, and relative standard deviation percentage (RSD%) could reach to 4.62% under this condition. It was also pointed out that, for the preparation of standard solution, the method which controlled the sampling volume of anhydrous ethanol by microliter syringe could make the peak area of ethanol chromatogram have a better linear relationship with the standard curve. Under the similar linear range, the goodness of fitting curve without diluting process could be as high as 0.9993, while the method of preparing the stock solution and diluting stepwise to obtain the fitting curve only had a goodness of 0.9910. The method was validated by standard addition recovery test, and the recovery values obtained were between 90.3% and 95.8%. The optimized method is of great significance for the measurement of ethanol dissolved in insulating oil

    Organomediated electrochemical fluorosulfonylation of aryl triflates via selective Cā€“O bond cleavage

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    Abstract Although aryl triflates are essential building blocks in organic synthesis, the applications as aryl radical precursors are limited. Herein, we report an organomediated electrochemical strategy for the generation of aryl radicals from aryl triflates, providing a useful method for the synthesis of aryl sulfonyl fluorides from feedstock phenol derivatives under very mild conditions. Mechanistic studies indicate that key to success is to use catalytic amounts of 9, 10-dicyanoanthracene as an organic mediator, enabling to selectively active aryl triflates to form aryl radicals via orbital-symmetry-matching electron transfer, realizing the anticipated Cā€“O bond cleavage by overcoming the competitive Sā€“O bond cleavage. The transition-metal-catalyst-free protocol shows good functional group tolerance, and may overcome the shortages of known methods for aryl sulfonyl fluoride synthesis. Furthermore, this method has been used for the modification and formal synthesis of bioactive molecules or tetraphenylethylene (TPE) derivative with improved quantum yield of fluorescence
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