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  • 1
    Electronic Resource
    Electronic Resource
    The NMR-Spectroscopic and X-ray Crystal-Structural Characterization of Two Cp*Ir Halfsandwich Complexes Containing the 1,2-Dicarba-closo-dodecaborane-1,2-diselenolato Ligand (1999)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 873-875 
    Details
    ISSN: 1434-1948
    Keywords: Iridium ; Selenium ; Diselenolenes ; Carboranes ; X-ray crystal structure analysis ; NMR spectroscopy ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The reaction of [Cp*IrCl2]2 with dilithium 1,2-ortho-carborane-1,2-diselenolate 3 leads to the green 16-electron diselenolene complex [Cp*Ir{Se2C2(B10H10)}] (4) which takes up two-electron ligands such as trimethylphosphane to give the 18-electron diselenolate derivative [Cp*Ir(PMe3){Se2C2(B10H10)}] (5). The molecular structures of 4 and 5 were determined by X-ray crystal structure analysis. The 77Se-nuclear shielding in 4 is lower by almost 500 ppm relative to that in 5.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
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    Sensors, Vol. 16, Pages 1228: Real-Time Identification of Smoldering and Flaming Combustion Phases in Forest Using a Wireless Sensor Network-Based Multi-Sensor System and Artificial Neural Network (2016)
    MDPI Publishing
    In: Sensors
    Details
    Publication Date: 2016-08-05
    Description: Diverse sensing techniques have been developed and combined with machine learning method for forest fire detection, but none of them referred to identifying smoldering and flaming combustion phases. This study attempts to real-time identify different combustion phases using a developed wireless sensor network (WSN)-based multi-sensor system and artificial neural network (ANN). Sensors (CO, CO2, smoke, air temperature and relative humidity) were integrated into one node of WSN. An experiment was conducted using burning materials from residual of forest to test responses of each node under no, smoldering-dominated and flaming-dominated combustion conditions. The results showed that the five sensors have reasonable responses to artificial forest fire. To reduce cost of the nodes, smoke, CO2 and temperature sensors were chiefly selected through correlation analysis. For achieving higher identification rate, an ANN model was built and trained with inputs of four sensor groups: smoke; smoke and CO2; smoke and temperature; smoke, CO2 and temperature. The model test results showed that multi-sensor input yielded higher predicting accuracy (≥82.5%) than single-sensor input (50.9%–92.5%). Based on these, it is possible to reduce the cost with a relatively high fire identification rate and potential application of the system can be tested in future under real forest condition.
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Published by MDPI Publishing
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  • 3
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    Comparative analysis of bacteria associated with different mosses by 16S rRNA and 16S rDNA sequencing (2016)
    Wiley-Blackwell
    Details
    Publication Date: 2016-08-13
    Description: To understand the differences of the bacteria associated with different mosses, a phylogenetic study of bacterial communities in three mosses was carried out based on 16S rDNA and 16S rRNA sequencing. The mosses used were Hygroamblystegium noterophilum , Entodon compressus and Grimmia montana , representing hygrophyte, shady plant and xerophyte, respectively. In total, the operational taxonomic units (OTUs), richness and diversity were different regardless of the moss species and the library level. All the examined 1183 clones were assigned to 248 OTUs, 56 genera were assigned in rDNA libraries and 23 genera were determined at the rRNA level. Proteobacteria and Bacteroidetes were considered as the most dominant phyla in all the libraries, whereas abundant Actinobacteria and Acidobacteria were detected in the rDNA library of Entodon compressus and approximately 24.7% clones were assigned to Candidate division TM7 in Grimmia montana at rRNA level. The heatmap showed the bacterial profiles derived from rRNA and rDNA were partly overlapping. However, the principle component analysis of all the profiles derived from rDNA showed sharper differences between the different mosses than that of rRNA-based profiles. This suggests that the metabolically active bacterial compositions in different mosses were more phylogenetically similar and the differences of the bacteria associated with different mosses were mainly detected at the rDNA level. Obtained results clearly demonstrate that combination of 16S rDNA and 16S rRNA sequencing is preferred approach to have a good understanding on the constitution of the microbial communities in mosses.
    Print ISSN: 0233-111X
    Electronic ISSN: 1521-4028
    Topics: Biology
    Published by Wiley-Blackwell
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  • 4
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    Sensors, Vol. 16, Pages 1293: Through-Wall Multiple Targets Vital Signs Tracking Based on VMD Algorithm (2016)
    MDPI Publishing
    In: Sensors
    Details
    Publication Date: 2016-08-16
    Description: Targets located at the same distance are easily neglected in most through-wall multiple targets detecting applications which use the single-input single-output (SISO) ultra-wideband (UWB) radar system. In this paper, a novel multiple targets vital signs tracking algorithm for through-wall detection using SISO UWB radar has been proposed. Taking advantage of the high-resolution decomposition of the Variational Mode Decomposition (VMD) based algorithm, the respiration signals of different targets can be decomposed into different sub-signals, and then, we can track the time-varying respiration signals accurately when human targets located in the same distance. Intensive evaluation has been conducted to show the effectiveness of our scheme with a 0.15 m thick concrete brick wall. Constant, piecewise-constant and time-varying vital signs could be separated and tracked successfully with the proposed VMD based algorithm for two targets, even up to three targets. For the multiple targets’ vital signs tracking issues like urban search and rescue missions, our algorithm has superior capability in most detection applications.
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Published by MDPI Publishing
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  • 5
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    Isolation and Characterization of Secondary Metabolites from Rhododendron microphyton (2015)
    Wiley-Blackwell
    Details
    Publication Date: 2015-08-13
    Description: Four new iridoids, incarvoids D–F ( 1 – 3 , resp.) and incarvoid B 9- O - β - D -glucopyranoside ( 4 ), and one new monoterpenoid, argutoid B ( 5 ), along with 14 known compounds, were isolated from Rhododendron microphyton. Their structures were established by comprehensive 1D- and 2D-NMR spectroscopic analysis.
    Print ISSN: 0018-019X
    Electronic ISSN: 1522-2675
    Topics: Chemistry and Pharmacology
    Published by Wiley-Blackwell
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  • 6
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    NEMO, a Transcriptional Target of Estrogen and Progesterone, Is Linked to Tumor Suppressor PML in Breast Cancer (2017)
    The American Association for Cancer Research (AACR)
    Details
    Publication Date: 2017-07-15
    Description: The beneficial versus detrimental roles of estrogen plus progesterone (E+P) in breast cancer remains controversial. Here we report a beneficial mechanism of E+P treatment in breast cancer cells driven by transcriptional upregulation of the NFκB modulator NEMO, which in turn promotes expression of the tumor suppressor protein promyelocytic leukemia (PML). E+P treatment of patient-derived epithelial cells derived from ductal carcinoma in situ (DCIS) increased secretion of the proinflammatory cytokine IL6. Mechanistic investigations indicated that IL6 upregulation occurred as a result of transcriptional upregulation of NEMO, the gene that harbored estrogen receptor (ER) binding sites within its promoter. Accordingly, E+P treatment of breast cancer cells increased ER binding to the NEMO promoter, thereby increasing NEMO expression, NFκB activation, and IL6 secretion. In two mouse xenograft models of DCIS, we found that RNAi-mediated silencing of NEMO increased tumor invasion and progression. This seemingly paradoxical result was linked to NEMO-mediated regulation of NFκB and IL6 secretion, increased phosphorylation of STAT3 on Ser727, and increased expression of PML, a STAT3 transcriptional target. In identifying NEMO as a pivotal transcriptional target of E+P signaling in breast cancer cells, our work offers a mechanistic explanation for the paradoxical antitumorigenic roles of E+P in breast cancer by showing how it upregulates the tumor suppressor protein PML. Cancer Res; 77(14); 3802–13. ©2017 AACR.
    Print ISSN: 0008-5472
    Electronic ISSN: 1538-7445
    Topics: Medicine
    Published by The American Association for Cancer Research (AACR)
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  • 7
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    IJERPH, Vol. 15, Pages 993: Study of Factors Influencing the Bioaccessibility of Triazolone in Cherry Tomatoes Using a Static SHIME Model (2018)
    MDPI Publishing
    Details
    Publication Date: 2018-05-16
    Description: IJERPH, Vol. 15, Pages 993: Study of Factors Influencing the Bioaccessibility of Triazolone in Cherry Tomatoes Using a Static SHIME Model International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15050993 Authors: Yu-Ying Liu Jin-Jing Xiao Yun-Yao Fu Min Liao Hai-Qun Cao Yan-Hong Shi Estimating the influence of bioaccessibility of pesticide residues in fruits and vegetables on dietary exposure is a challenge for human health risk assessment. This study investigated the bioaccessibility of pesticide residues in cherry tomatoes and contributing factors (digestion time, pH, solid/liquid ratio, and dietary nutrition) using an in vitro test simulating the human gastrointestinal tract. pH had the largest effect on triazolone precipitation in the simulated gastric intestinal juice, which had a significant impact on the bioaccessibility. The bioaccessibility of triazolone in the intestinal stage was slightly higher than that in the stomach stage, owing to bile salts and pancreatic enzymes present in the intestinal juice. The bioaccessibility of triazolone did not change significantly with digestion time. In the gastric stage, there was a logarithmic relationship between the bioaccessibility and solid/liquid ratio (R2 = 0.9941). The addition of oil significantly changed the bioaccessibility in the gastrointestinal stage. Protein and dietary fiber only affected bioaccessibility in the stomach stage. Dietary nutrition can reduce the release of pesticides from fruits and vegetables into the stomach, sharply reducing the bioaccessibility, and the dietary exposure of pesticide residues in fruits and vegetables can be properly evaluated.
    Print ISSN: 1661-7827
    Electronic ISSN: 1660-4601
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by MDPI Publishing
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  • 8
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    Energies, Vol. 11, Pages 1222: Control Strategy for Vehicle Inductive Wireless Charging Based on Load Adaptive and Frequency Adjustment (2018)
    MDPI Publishing
    In: Energies
    Details
    Publication Date: 2018-05-11
    Description: Energies, Vol. 11, Pages 1222: Control Strategy for Vehicle Inductive Wireless Charging Based on Load Adaptive and Frequency Adjustment Energies doi: 10.3390/en11051222 Authors: Shichun Yang Xiaoyu Yan Hong He Peng Yang Zhaoxia Peng Haigang Cui Wireless charging system for electric vehicles is a hot research issue in the world today. Since the existing research on wireless charging is mostly forward-looking aimed at low-power appliances like household appliances, while electric vehicles need a high-power, high-efficiency, and strong coupling wireless charging system. In this paper, we have specifically designed a 6.6 KW wireless charging system for electric vehicles and have proposed a control strategy suitable for electric vehicles according to its power charging characteristics and existing common wired charging protocol. Firstly, the influence of the equivalent load and frequency bifurcation on a wireless charging system is analyzed in this paper. Secondly, an adaptive load control strategy matching the characteristics of the battery, and the charging pile is put forward to meet the constant current and constant voltage charging requirements to improve the system efficiency. In addition, the frequency adjustment control strategy is designed to realize the real-time dynamic optimization of the entire system. It utilizes the improved methods of rapid judgment, variable step length matching and frequency splitting recognition, which are not adopted in early related researches. Finally, the results of 6.6 kW test show that the control strategy works perfectly since system response time can be reduced to less than 1 s, and the overall efficiency of the wireless charging system and the grid power supply module can reach up to 91%.
    Electronic ISSN: 1996-1073
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
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  • 9
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    Expression of FGF4 mRNA is mediated by mating behaviours in mice (2012)
    Wiley-Blackwell
    Details
    Publication Date: 2012-11-22
    Description: In mammals, breeding is preceded by species-specific mating behaviours. In this study, we investigated whether parthenogenetic embryo quality could be improved by mating behaviours in mice. To investigate this hypothesis, female mice were mated with vasectomized Kunming white male mice after superovulation. Oocytes were collected and counted at 16 h after superovulation. The oocytes were then artificially activated by medium containing 10 mM strontium chloride and 5 µg/ml cytochalasin B. Blastocysts were obtained by cultivating activated oocytes in vitro . Expression levels of reprogramming transcription factors (i.e. Oct4, Sox2, Klf4 and c-Myc ) in oocytes, apoptosis-related genes (i.e. Bax, Bcl2 and c-Myc) in cumulus cells and pluripotency-related transcription factors (i.e. Oct4, Nanog and FGF4 ) in blastocysts were analysed in samples collected from mated and unmated mice. Additionally, developmental competence of parthenogenetic embryos was used to assess following fibroblast growth factor 4 (FGF4) treatment. The results showed that the formation rate of blastocysts in unmated mice was significantly higher than that in mated mice ( p  〈 0.05). Embryo development was primarily blocked at the eight-cell stage in mated mice; however, the blastocyst formation rate did not differ significantly between groups after the addition of 25 ng/ml FGF4 to the medium at the four-cell stage ( p  〉 0.05). Moreover, the expression of the reprogramming factor Sox2 was significantly different in oocytes collected from mated versus unmated mice. Taken together, our results demonstrated that mating behaviours influenced embryonic development in vitro by decreasing FGF4 expression. Copyright © 2012 John Wiley & Sons, Ltd.
    Print ISSN: 0263-6484
    Electronic ISSN: 1099-0844
    Topics: Biology , Medicine
    Published by Wiley-Blackwell
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  • 10
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    Oral vaccination with inhibin DNA delivered using attenuated Salmonella choleraesuis for improving reproductive traits in mice (2013)
    Wiley-Blackwell
    Details
    Publication Date: 2013-10-05
    Description: The objective of this study was to examine the efficacy and safety of a novel inhibin vaccine containing inhibin α (1–32) fragments in mice. A recombinant plasmid pVAX-asd-IS was constructed by inserting recombinant inhibin α (1–32) and the hepatitis B surface antigen S into the plasmid in which the asd gene, rather than the kanamycin gene, was a selection marker. Ninety Kuming mice were divided into six groups consisting of 15 mice each. First group was (C1) injected with 200 µl of PBS, second (C2) received 1 × 10 10 CFU of crp − / asd − C500/pVAX-asd and served as vector control, third did not receive any treatment (C3), while fourth, fifth, and sixth group received 1 × 10 10 , 1 × 10 9 , 1 × 10 8 CFU of the recombinant inhibin vaccine crp − / asd − C500/pVAX-asd-IS (group T1, T2, T3), respectively. Western blotting demonstrated that recombinant expressed inhibin protein possessed immune function and that this plasmid could replicate for up to 40 generations stably. Vaccination with this strain at a dose of 1 × 10 10 CFU/200 µl per mouse induced high anti-inhibin antibody levels, significantly increased large-follicle production in T1 group ( p  〈 0.05) and average litter size ( p  〉 0.05) compared with control groups. Integration studies showed no evidence of inhibin fusion gene integrated into mice's genome 2-month after immunization. These results suggest that the vaccine described in the present study may provide a safe method to improve reproductive traits in animals. A trend towards increased litter size and significant increase in large follicle population depict that this vaccine may have direct application in large animal industry.
    Print ISSN: 0233-111X
    Electronic ISSN: 1521-4028
    Topics: Biology
    Published by Wiley-Blackwell
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