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  • SAGE Publications  (12)
  • Wang, Pingping  (12)
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  • SAGE Publications  (12)
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  • 1
    Online Resource
    Online Resource
    A real-time wireless wearable electroencephalography system based on Support Vector Machine for encephalopathy daily monitoring
    SAGE Publications ; 2018
    In:  International Journal of Distributed Sensor Networks Vol. 14, No. 5 ( 2018-05), p. 155014771877956-
    Details
    In: International Journal of Distributed Sensor Networks, SAGE Publications, Vol. 14, No. 5 ( 2018-05), p. 155014771877956-
    Abstract: Wearable electroencephalography systems of out-of-hospital can both provide complementary recordings and offer several benefits over long-term monitoring. However, several limitations were present in these new-born systems, for example, uncomfortable for wearing, inconvenient for retrieving the recordings by patients themselves, unable to timely provide accurate classification, and early warning information. Therefore, we proposed a wireless wearable electroencephalography system for encephalopathy daily monitoring, named as Brain-Health, which focused on the following three points: (a) the monitoring device integrated with electroencephalography acquisition sensors, signal processing chip, and Bluetooth, attached to a sport hat or elastic headband; (b) the mobile terminal with dedicated application, which is not only for continuous recording and displaying electroencephalography signal but also for early warning in real time; and (c) the encephalopathy’s classification algorithm based on intelligent Support Vector Machine, which is used in a new application of wearable electroencephalography for encephalopathy daily monitoring. The results showed a high mean accuracy of 91.79% and 93.89% in two types of classification for encephalopathy. In conclusion, good performance of our Brain-Health system indicated the feasibility and effectiveness for encephalopathy daily monitoring and patients’ health self-management.
    Type of Medium: Online Resource
    ISSN: 1550-1477 , 1550-1477
    URL: Article
    DOI: 10.1177/1550147718779562
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2192922-1
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  • 2
    Online Resource
    Online Resource
    Polystyrene-Immobilised Phenanthroline Palladium(II) Complex: A Highly Efficient and Recyclable Catalyst for Oxidative Heck Reactions
    SAGE Publications ; 2012
    In:  Journal of Chemical Research Vol. 36, No. 11 ( 2012-11), p. 629-631
    Details
    In: Journal of Chemical Research, SAGE Publications, Vol. 36, No. 11 ( 2012-11), p. 629-631
    Abstract: Oxidative Heck coupling reactions of arylboronic acids with olefins were carried out in the presence of the polystyrene-immobilised phenanthroline palladium(II) complex using air as a co-oxidant to afford the Heck coupling products in high yields under base-free conditions. This heterogeneous palladium catalyst can be recovered by simple filtration and used for several times without loss of activity or selectivity.
    Type of Medium: Online Resource
    ISSN: 1747-5198 , 2047-6507
    URL: Article
    DOI: 10.3184/174751912X13466942543952
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2012
    detail.hit.zdb_id: 3010810-X
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  • 3
    Online Resource
    Online Resource
    Synthesis of β-Aryl Ketones by Heck Arylation of Allylic Alcohols Catalysed by a Mcm-41-Supported Bidentate Nitrogen Palladium Complex
    SAGE Publications ; 2013
    In:  Journal of Chemical Research Vol. 37, No. 6 ( 2013-06), p. 333-336
    Details
    In: Journal of Chemical Research, SAGE Publications, Vol. 37, No. 6 ( 2013-06), p. 333-336
    Abstract: The Heck arylation reaction of aryl iodides with allylic alcohols catalysed by an mesoporous silica (MCM-41)-supported bidentate nitrogen palladium complex [MCM-41-2N-Pd(OAc) 2 ] proceeded smoothly in the presence of tetrabutylammonium chloride (TBAC) in DMF to afford β-aryl ketones in good to excellent yields. This heterogeneous palladium catalyst can be recovered by simple filtration and reused several times without any decrease in activity.
    Type of Medium: Online Resource
    ISSN: 1747-5198 , 2047-6507
    URL: Article
    DOI: 10.3184/174751913X13668131126257
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
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  • 4
    Online Resource
    Online Resource
    Synthesis of poly(ether ketone amide)s by a heterogeneous palladium-catalyzed polycondensation of aromatic diiodides, diamines, and carbon monoxide
    SAGE Publications ; 2019
    In:  High Performance Polymers Vol. 31, No. 4 ( 2019-05), p. 425-437
    Details
    In: High Performance Polymers, SAGE Publications, Vol. 31, No. 4 ( 2019-05), p. 425-437
    Abstract: A series of novel aromatic poly(ether ketone amide)s (PEKAs) were synthesized by the heterogeneous palladium-catalyzed carbonylative polycondensation of aromatic diiodides with ether ketone units, aromatic diamines, and carbon monoxide in N, N-dimethylacetamide (DMAc) at 120°C using 6 mol% of a magnetic nanoparticles–supported bidentate phosphine palladium complex (Fe 3 O 4 @SiO 2 -2P-PdCl 2 ) as catalyst and 1,8-diazabicyclo[5,4,0]-7-undecene as base. The PEKAs had inherent viscosities ranging from 0.61 dl g −1 to 0.75 dl g −1 . All the PEKAs were soluble in strong dipolar organic solvents. These PEKAs showed glass transition temperatures between 178°C and 232°C and 10% weight loss temperatures ranging from 443°C to 496°C in nitrogen. These PEKAs could be cast into transparent, flexible, and strong films from DMAc solutions with tensile strengths of 72.8–82.6 MPa, tensile moduli of 2.19–2.84 GPa, and elongations at break of 5.4–7.5%. Importantly, the heterogeneous palladium catalyst can be conveniently recovered from the reaction mixture by simply applying an external magnet and recycled up to eight times without significant loss of activity.
    Type of Medium: Online Resource
    ISSN: 0954-0083 , 1361-6412
    URL: Article
    DOI: 10.1177/0954008318781700
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 1483713-4
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  • 5
    Online Resource
    Online Resource
    Synthesis and characterization of novel organosoluble poly(aryl ether ketone)s and poly(aryl ether ketone sulfone)s containing 1,4-naphthylene units
    SAGE Publications ; 2015
    In:  High Performance Polymers Vol. 27, No. 6 ( 2015-09), p. 705-713
    Details
    In: High Performance Polymers, SAGE Publications, Vol. 27, No. 6 ( 2015-09), p. 705-713
    Abstract: Two monomers containing naphthalene, 4,4′-di(1-naphthoxy)benzophenone (DNOBN) and 4,4′-bis(1-naphthoxy)diphenyl sulfone (BNODPS), were prepared by the condensation reactions of 4,4′-difluorobenzophenone and 4,4′-dichlorodiphenyl sulfone with 1-naphthol, respectively. Novel poly(aryl ether ketone)s (PAEKs) and poly(aryl ether ketone sulfone)s containing 1,4-naphthylene units were synthesized from DNOBN and BNODPS via the electrophilic Friedel–Crafts acylation polycondensation with various aromatic diacid dichlorides, in the presence of anhydrous aluminum chloride and N-methyl-2-pyrrolidone in 1,2-dichloroethane. Because of the incorporation of 1,4-naphthylene units, the resulting PAEKs and poly(aryl ether ketone sulfone)s exhibited outstanding thermal stability and improved solubility in common organic solvents. The glass transition temperatures are above 200°C, and the temperatures at a 5% weight loss are above 548°C under nitrogen atmosphere. All these polymers are amorphous and can form strong, transparent, and flexible films with tensile strengths of 89.4–100.6 MPa, Young’s moduli of 2.13–2.65 GPa, and elongations at break of 15.5–25.3%. All these polymers had low dielectric constants of 2.70–2.89 at 1 MHz and low water sorption of 0.51–0.59%.
    Type of Medium: Online Resource
    ISSN: 0954-0083 , 1361-6412
    URL: Article
    DOI: 10.1177/0954008314557707
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
    detail.hit.zdb_id: 1483713-4
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  • 6
    Online Resource
    Online Resource
    Study on the inhibitory effect of ulinastatin on caspase-1-dependent pyroptosis in acinar cells of acute pancreatitis
    SAGE Publications ; 2021
    In:  European Journal of Inflammation Vol. 19 ( 2021-01), p. 205873922110508-
    Details
    In: European Journal of Inflammation, SAGE Publications, Vol. 19 ( 2021-01), p. 205873922110508-
    Abstract: Pyroptosis, a special kind of cell death, is generally believed to aggravate the inflammatory response. It has been found that the acinar cell pyroptosis exits in the course of pancreatitis. Ulinastatin has the function of inhibiting the release of inflammatory mediators, thereby reducing the inflammatory reaction, which suggests that ulinastatin has potential inhibitory effect on pyroptosis. The aim of this study is to investigate the effect of ulinastatin on caspase-1-dependent acinar cell pyroptosis in acute pancreatitis. Methods Acute pancreatitis model was established by intraperitoneal injection of L-arginine. Rats in ulinastatin group were injected with ulinastatin intravenously after successful modeling. The pancreatic tissues of rats were subjected to pathological examination and detection of cleaved-caspase-1, GSDMD-N, IL-1β, and IL-18. Serum samples were also collected for measurement of IL-1β, IL-18, amylase, and lipase. Results Slight pathological damage of pancreas was observed in the pancreatitis and the ulinastatin group. Compared with the blank control group ( p 〈 .05), the protein levels of cleaved-caspase-1, GSDMD-N, IL-1β, and IL-18 were significantly increased in pancreatitis group but decreased in ulinastatin group ( p 〈 .05). The positive reaction of caspase-1 in pancreatitis group was significantly higher than that in the blank control group ( p 〈 .05). After administration of ulinastatin, the positive reaction of caspase-1 was significantly lower than that in pancreatitis group ( p 〈 .05). As for the levels of serum IL-1β and IL-18, they were significantly higher in pancreatitis group than those in the blank control group ( p 〈 .05). Administration of ulinastatin significantly decreased the serum levels of IL-1β and IL-18 ( p 〈 .05). And the serum amylase and lipase levels elevated in pancreatitis group, while significantly inhibited by ulinastatin ( p 〈 .05). Conclusions The results showed that the onset of acute pancreatitis was accompanied by obvious acinar cell pyroptosis. Ulinastatin could inhibit caspase-1-dependent acinar cell pyroptosis in acute pancreatitis.
    Type of Medium: Online Resource
    ISSN: 2058-7392 , 2058-7392
    URL: Article
    DOI: 10.1177/20587392211050827
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2584683-8
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  • 7
    Online Resource
    Online Resource
    MCM-41-Immobilised Nitrogen and Sulfur Mixed Tridentate Palladium(0) Complex: A Highly Efficient and Recyclable Catalyst for the Suzuki Reaction of Aryl Bromides in Air
    SAGE Publications ; 2017
    In:  Journal of Chemical Research Vol. 41, No. 3 ( 2017-03), p. 186-191
    Details
    In: Journal of Chemical Research, SAGE Publications, Vol. 41, No. 3 ( 2017-03), p. 186-191
    Abstract: The novel MCM-41-immobilised nitrogen and sulfur mixed tridentate palladium(0) complex [MCM-41-2N,S-Pd(0)] was prepared from 3-(2-aminoethylamino)propyltrimethoxysilane by immobilisation on MCM-41, followed by reaction with thiophene-2-carboxaldehyde and PdCl 2 and then reduction with hydrazine hydrate. This phosphine-free heterogeneous palladium(0) complex was a highly active catalyst for the Suzuki reaction of aryl bromides in air and could be recycled at least 8 times without significant loss of activity.
    Type of Medium: Online Resource
    ISSN: 1747-5198 , 2047-6507
    URL: Article
    DOI: 10.3184/174751917X14878812592698
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2017
    detail.hit.zdb_id: 3010810-X
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  • 8
    Online Resource
    Online Resource
    A Facile Stereoselective Synthesis of (E)-1,2-disubstituted Vinyl Sulfides via Hydromagnesiation of Alkylarylacetylenes
    SAGE Publications ; 2005
    In:  Journal of Chemical Research Vol. 2005, No. 9 ( 2005-09), p. 583-584
    Details
    In: Journal of Chemical Research, SAGE Publications, Vol. 2005, No. 9 ( 2005-09), p. 583-584
    Abstract: Hydromagnesiation of alkylarylacetylenes 1 in diethyl ether gave (E)-α-arylvinyl Grignards reagents 2, which reacted with arylsulfenyl chlorides 3 to afford stereoselectively (E)-1,2-disubstituted vinyl sulfides 4 in good yields.
    Type of Medium: Online Resource
    ISSN: 1747-5198 , 2047-6507
    URL: Article
    DOI: 10.3184/030823405774308989
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2005
    detail.hit.zdb_id: 3010810-X
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  • 9
    Online Resource
    Online Resource
    Diphosphino-Functionalised MCM-41-Supported Palladium Complex: An Efficient and Recyclable Catalyst for the Formylation of Aryl Halides
    SAGE Publications ; 2014
    In:  Journal of Chemical Research Vol. 38, No. 4 ( 2014-04), p. 218-222
    Details
    In: Journal of Chemical Research, SAGE Publications, Vol. 38, No. 4 ( 2014-04), p. 218-222
    Abstract: The heterogeneous formylation of aryl halides with HCO 2 Na at atmospheric pressure by carbon monoxide was readily achieved in the presence of the diphosphino-functionalised MCM-41-supported palladium complex in DMF to afford the corresponding aromatic aldehydes in good to excellent yields. This heterogeneous palladium catalyst can be recovered by simple filtration and reused 10 times without any loss of activity.
    Type of Medium: Online Resource
    ISSN: 1747-5198 , 2047-6507
    URL: Article
    DOI: 10.3184/174751914X13934116089943
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
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  • 10
    Online Resource
    Online Resource
    Correlation between quantitative parameters of CEUS and Ki-67 labeling index in soft-tissue sarcoma
    SAGE Publications ; 2023
    In:  Acta Radiologica Vol. 64, No. 7 ( 2023-07), p. 2293-2301
    Details
    In: Acta Radiologica, SAGE Publications, Vol. 64, No. 7 ( 2023-07), p. 2293-2301
    Abstract: Apart from the immunohistochemical Ki-67 labeling index (LI), clinicians need a non-invasive and convenient way to predict the prognosis of patients with soft-tissue sarcoma (STS). Purpose To investigate the correlation between quantitative parameters of contrast-enhanced ultrasound (CEUS) and Ki-67 LI in STS. Material and Methods A total of 25 patients diagnosed with STS who underwent CEUS examination using SonoVue®, between January 2019 to November 2020, were included in the study. They were then divided into a high-proliferation group and low-proliferation group according to 30% Ki-67 positive tumor cells. The quantitative parameters in the semi-automatic time intensity curve analysis software, including arrival time, time to peak, peak intensity, rise time (RT), rise slope, 50% wash-out time, and 50% wash-out intensity, were extracted from the time intensity curve of CEUS by two independent observers. Statistical evaluation of the correlation and difference between CEUS quantitative parameters and Ki-67 LI between the two groups was performed. According to the area under the curve (AUC) analysis, optimal cutoff points of parameters with significant difference were determined. Results CEUS RT of the high-proliferation group in STS was significantly higher than that of the low-proliferation group (ρ = 0.509, P = 0.01). The most reasonable cutoff to distinguish between low- and high-proliferation groups was 10.84 s. The sensitivity, specificity, and the AUC were 86.7%, 80%, and 0.80, respectively. Conclusion CEUS RT was correlated with Ki-67 LI of STS, which can be used as a minimally invasive auxiliary tool to predict the prognosis of STS in clinical practice.
    Type of Medium: Online Resource
    ISSN: 0284-1851 , 1600-0455
    URL: Article
    DOI: 10.1177/02841851221115081
    RVK:
    XA 10000
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2024579-8
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