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  • SAGE Publications  (85)
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  • 1
    Online Resource
    Online Resource
    Unexpected cleavage and formation of C–C bonds by the nitration of 2,2′-biindanyl-1,1′,3,3′-tetraone
    SAGE Publications ; 2006
    In:  Journal of Chemical Research Vol. 2006, No. 11 ( 2006-11), p. 716-718
    Details
    In: Journal of Chemical Research, SAGE Publications, Vol. 2006, No. 11 ( 2006-11), p. 716-718
    Abstract: A novel compound, triindanylhexaone, is formed unexpectedly as a major product from the nitration of 2,2′-biindanyl-1,1′,3,3′-tetraone. The structure was clearly established by X-ray crystallography. The reaction mechanism is interpreted as involving an oxidation-induced radical addition.
    Type of Medium: Online Resource
    ISSN: 1747-5198 , 2047-6507
    URL: Article
    DOI: 10.3184/030823406779173415
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2006
    detail.hit.zdb_id: 3010810-X
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  • 2
    Online Resource
    Online Resource
    Foamed-metal reinforced material: tribological behaviours of foamed-copper filled with polytetrafluoroethylene and graphite
    SAGE Publications ; 2012
    In:  Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Vol. 226, No. 2 ( 2012-02), p. 123-137
    Details
    In: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, SAGE Publications, Vol. 226, No. 2 ( 2012-02), p. 123-137
    Abstract: A novel foamed copper based (FCB) composite is developed as a rubbing pair material. The composites consist of the foamed copper and solid lubricants, such as polytetrafluoroethylene and graphite. Four kinds of FCB composites were fabricated by vacuum filtration, compression moulding, and sintering process in an orderly manner. The thermal and electrical conductivities and tribological properties of the new composites were investigated. Because the interconnected metal skeletons have been embedded in the polymers, the FCB composites possess excellent thermal and electrical conductivities, including nice self-lubricating property. The friction and wear properties were investigated on an M-2000 friction and wear tester. An electric field was imposed between the sample and ring to monitor the tribo-chemical reaction and formation of transfer film by means of ‘contact resistance’. The measurements of friction temperatures were carried out by means of three thermocouples embedded in the material. The friction tests show that the friction coefficients of the FCB composites decrease almost monotonically with the increase of graphite content under different conditions; and the wear rates decrease overall compared with that of the homologous polymers, more obvious especially under severe conditions. The optical microscope, SEM, and XPS were adopted to study the worn surface morphologies and the transfer films. The main wear mechanism of the new composite is a three-body abrasion, caused and promoted by the plastic deformation, abrasive wear, and fatigue spalling. The oxidation of copper is the dominant chemical processes which occurred during the sliding process.
    Type of Medium: Online Resource
    ISSN: 1350-6501 , 2041-305X
    URL: Article
    DOI: 10.1177/1350650111426520
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2012
    detail.hit.zdb_id: 2032767-5
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  • 3
    Online Resource
    Online Resource
    Sensitizing the Behavioral-Immune System: The Power of Social Pain
    SAGE Publications ; 2023
    In:  Social Psychological and Personality Science Vol. 14, No. 4 ( 2023-05), p. 371-380
    Details
    In: Social Psychological and Personality Science, SAGE Publications, Vol. 14, No. 4 ( 2023-05), p. 371-380
    Abstract: People who believe they are invulnerable to infectious diseases often fail to protect themselves against the disease threats that others pose to them. The current paper hypothesizes that social pain—the experience of feeling interpersonally hurt or rejected—can sensitize the behavioral-immune system by giving people added reason to see others as worthy of protecting themselves against. We obtained four daily diary samples involving 2,794 participants who reported how hurt/rejected they felt by those they knew, how personally concerned they were about the spread of illness/COVID-19, and how vigilantly they engaged in self-protective behaviors to safeguard their health each day. An integrative data analysis revealed robust evidence that people who believed they were invulnerable to infectious disease engaged in more concerted efforts to protect themselves against the greater daily risk of contracting COVID-19 when being in acute social pain gave them added reason to see others as harmful to them.
    Type of Medium: Online Resource
    ISSN: 1948-5506 , 1948-5514
    URL: Article
    DOI: 10.1177/19485506221107741
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2532395-7
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  • 4
    Online Resource
    Online Resource
    Looking for Safety in All the Right Places: When Threatening Political Reality Strengthens Family Relationship Bonds
    SAGE Publications ; 2021
    In:  Social Psychological and Personality Science Vol. 12, No. 7 ( 2021-09), p. 1193-1202
    Details
    In: Social Psychological and Personality Science, SAGE Publications, Vol. 12, No. 7 ( 2021-09), p. 1193-1202
    Abstract: Elections and pandemics highlight how much one’s safety depends on fellow community members, a realization that is especially threatening when this collective perceives political realities inconsistent with one’s own. Two longitudinal studies examined how people restored safety to social bonds when everyday experience suggested that fellow community members inhabited inconsistent realities. We operationalized consensus political realities through the negativity of daily nationwide social media posts mentioning President Trump (Studies 1 and 2), and the risks of depending on fellow community members through the pending transition to a divided Congress during the 2018 election season (Study 1), and escalating daily U.S. COVID-19 infections (Study 2). On days that revealed people could not count on fellow community members to perceive the same reality of President Trump’s stewardship they perceived, being at greater risk from the judgment and behavior of the collective community motivated people to find greater happiness in their family relationships.
    Type of Medium: Online Resource
    ISSN: 1948-5506 , 1948-5514
    URL: Article
    DOI: 10.1177/19485506211018351
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2532395-7
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  • 5
    Online Resource
    Online Resource
    MiR-9-1 Suppresses Cell Proliferation and Promotes Apoptosis by Targeting UHRF1 in Lung Cancer
    SAGE Publications ; 2021
    In:  Technology in Cancer Research & Treatment Vol. 20 ( 2021-01), p. 153303382110411-
    Details
    In: Technology in Cancer Research & Treatment, SAGE Publications, Vol. 20 ( 2021-01), p. 153303382110411-
    Abstract: Lung cancer is listed as the most common reason for cancer-related death all over the world despite diagnostic improvements and the development of chemotherapy and targeted therapies. MicroRNAs control both physiological and pathological processes including development and cancer. A microRNA-9 to 1 (miR-9 to 1) overexpression model in lung cancer cell lines was established and miR-9 to 1 was found to significantly suppress the proliferation rate in lung cancer cell lines, colony formation in vitro, and tumorigenicity in nude mice of A549 cells. Ubiquitin-like containing PHD and RING finger domains 1 (UHRF1) was then identified to direct target of miR-9 to 1. The inhibition of UHRF1 by miR-9 to 1 causes G1 arrest and p15, p16, and p21 were re-expressed in miR-9 to 1 group in mRNA level and protein level. Silence of UHRF1 expression in A549 cells resulted in the similar re-expression of p15, p16, p21 which is similar with miR-9 to 1 infection. Therefore, we concluded that UHRF1 is a new target for miR-9 to 1 to suppress cell proliferation by re-expression of tumor suppressors p15, p16, and p21 mediated by UHRF1.
    Type of Medium: Online Resource
    ISSN: 1533-0346 , 1533-0338
    URL: Article
    DOI: 10.1177/15330338211041191
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2146365-7
    detail.hit.zdb_id: 2220436-2
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  • 6
    Online Resource
    Online Resource
    Efficient Synthesis of Apigenin
    SAGE Publications ; 2013
    In:  Journal of Chemical Research Vol. 37, No. 11 ( 2013-11), p. 694-696
    Details
    In: Journal of Chemical Research, SAGE Publications, Vol. 37, No. 11 ( 2013-11), p. 694-696
    Type of Medium: Online Resource
    ISSN: 1747-5198 , 2047-6507
    URL: Article
    DOI: 10.3184/174751913X13815091347640
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 3010810-X
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  • 7
    Online Resource
    Online Resource
    Double cracks with single-inclusion fatigue propagation of surface-quenched large modulus rack
    SAGE Publications ; 2019
    In:  Advances in Mechanical Engineering Vol. 11, No. 12 ( 2019-12), p. 168781401989574-
    Details
    In: Advances in Mechanical Engineering, SAGE Publications, Vol. 11, No. 12 ( 2019-12), p. 168781401989574-
    Abstract: A connectivity criterion based on the analysis of the stress intensity factor for the double cracks and inclusion was developed to study the residual life of large modulus crack. Applying the moving load, the finite element model in FRANC3D was proposed to study the variation law of the spacing ratio [Formula: see text] and stress intensity factor amplification coefficient [Formula: see text] . Also, the spacing ratio threshold and the initial spacing threshold for the law of propagation of the double cracks and inclusion were obtained. After the analysis of the threshold, the initial equivalent single crack [Formula: see text] was obtained based on the function [Formula: see text] and stress intensity factor for circular mode I crack [Formula: see text]. The final equivalent single crack [Formula: see text] was obtained by innovative use of the fatigue load cycle correction coefficient [Formula: see text]. Moreover, the residual fatigue life of surface-quenched large modulus rack is analyzed to be 55 years. It is reveal ed that the design of the large modulus crack is safe for the normal operation of the Three Gorges Shiplift.
    Type of Medium: Online Resource
    ISSN: 1687-8140 , 1687-8140
    URL: Article
    DOI: 10.1177/1687814019895745
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2501620-9
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  • 8
    Online Resource
    Online Resource
    Cap-assisted endoscopic sclerotherapy for internal hemorrhoids: technique protocol and study design for a multi-center randomized controlled trial
    SAGE Publications ; 2020
    In:  Therapeutic Advances in Gastrointestinal Endoscopy Vol. 13 ( 2020-01), p. 263177452092563-
    Details
    In: Therapeutic Advances in Gastrointestinal Endoscopy, SAGE Publications, Vol. 13 ( 2020-01), p. 263177452092563-
    Abstract: Cap-assisted endoscopic sclerotherapy is a new interventional therapy for internal hemorrhoids and rectal prolapse under colonoscopy. The proper length of the endoscopic injection needle is the core for performing cap-assisted endoscopic sclerotherapy well with more benefits and less complications. However, no data are currently available to guide endoscopists to consider the length of injection needle before cap-assisted endoscopic sclerotherapy. This study is designed to evaluate the efficacy and safety of cap-assisted endoscopic sclerotherapy with long or short injection needle in the treatment of internal hemorrhoids. Methods: This is a nationwide multi-center, prospective, single-blind and randomized controlled trial. Patients with grade I-II internal hemorrhoids who have failed to conservative treatments and grade III internal hemorrhoids who are not suitable for surgery or refuse surgery will be included. Participants will be randomized 1:1 into either long or short injection needle group. The primary outcome is the recurrence rate of internal hemorrhoids 24 weeks after cap-assisted endoscopic sclerotherapy. The secondary outcomes are as follows: (1) symptom severity score, (2) three-level EuroQoL five dimensions health scale scores, (3) occurrence of adverse events and severe adverse events, and (4) patients’ attitudes toward cap-assisted endoscopic sclerotherapy. Data collection will be conducted before and during operation, the 1st day, 1st week, 2nd week, and 24th week after cap-assisted endoscopic sclerotherapy. Discussion: The outcome of this study is expected to provide a practical clinical protocol of cap-assisted endoscopic sclerotherapy for patients with internal hemorrhoids and promote the use of this new endoscopic technique. Trial registration: ClinicalTrials.gov, NCT03917056. Registered on 12 April 2019.
    Type of Medium: Online Resource
    ISSN: 2631-7745 , 2631-7745
    URL: Article
    DOI: 10.1177/2631774520925636
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 3011635-1
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  • 9
    Online Resource
    Online Resource
    Effects of MWNTs-COOH on the Combustion Behaviour and the Flame Retardancy Properties of PET
    SAGE Publications ; 2011
    In:  Polymers and Polymer Composites Vol. 19, No. 1 ( 2011-01), p. 9-14
    Details
    In: Polymers and Polymer Composites, SAGE Publications, Vol. 19, No. 1 ( 2011-01), p. 9-14
    Abstract: Novel carboxyl-modified MWNTs-containing PET nanocomposites (PET/MWNTs-COOH) were successfully prepared via an in-situ method. Thermal stability and flame-retardancy properties of PET/MWNTs-COOH nanocomposites were investigated by cone calorimetry (CONE), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The CONE calorimetry results showed that PET/MWNTs-COOH had a lower heat release rate (HRR) and total smoke production (TSR), compared with those of pure PET. TGA indicated that the incorporation of MWNTs-COOH increased the char residues and improved the thermal stability of pure PET SEM images of the char crusts showed that PET/MWNTs-COOH formed more continuous and thicker char residues than those formed with pure PET during combustion. The above results indicated that combustion behaviour and flame retardancy properties of the MWNTs-COOH/PET nanocomposites were sufficiently enhanced that MWNTs-COOH could act as a flame retardancy agent for a PET matrix. Condensed phase and gas phase mechanisms were proposed for the PET/MWNTs-COOH flame-retardancy effect.
    Type of Medium: Online Resource
    ISSN: 0967-3911 , 1478-2391
    URL: Article
    DOI: 10.1177/096739111101900102
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2011
    detail.hit.zdb_id: 2099644-5
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  • 10
    Online Resource
    Online Resource
    Predicting Peritoneal Metastasis of Gastric Cancer Patients Based on Machine Learning
    SAGE Publications ; 2020
    In:  Cancer Control Vol. 27, No. 1 ( 2020-01-01), p. 107327482096890-
    Details
    In: Cancer Control, SAGE Publications, Vol. 27, No. 1 ( 2020-01-01), p. 107327482096890-
    Abstract: The aim is to explore the prediction effect of 5 machine learning algorithms on peritoneal metastasis of gastric cancer. Methods: 1080 patients with postoperative gastric cancer were divided into a training group and test group according to the ratio of 7:3. The model of peritoneal metastasis was established by using 5 machine learning (gbm(Light Gradient Boosting Machine), GradientBoosting, forest, Logistic and DecisionTree). Python pair was used to analyze the machine learning algorithm. Gbm algorithm is used to show the weight proportion of each variable to the result. Result: Correlation analysis showed that tumor size and depth of invasion were positively correlated with the recurrence of patients after gastric cancer surgery. The results of the gbm algorithm showed that the top 5 important factors were albumin, platelet count, depth of infiltration, preoperative hemoglobin and weight, respectively. In training group: Among the 5 algorithm models, the accuracy of GradientBoosting and gbm was the highest (0.909); the AUC values of the 5 algorithms are gbm (0.938), GradientBoosting (0.861), forest (0.796), Logistic(0.741) and DecisionTree(0.712) from high to low. In the test group: among the 5 algorithm models, the accuracy of forest, DecisionTree and gbm was the highest (0.907); AUC values ranged from high to low to gbm (0.745), GradientBoosting (0.725), forest (0.696), Logistic (0.680) and DecisionTree (0.657). Conclusion: Machine learning can predict the peritoneal metastasis in patients with gastric cancer.
    Type of Medium: Online Resource
    ISSN: 1073-2748 , 1073-2748
    URL: Article
    DOI: 10.1177/1073274820968900
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2004182-2
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