364 research outputs found
The bidirectional association between peer relationships and internet addiction: A meta-analytic structural equation model based on longitudinal studies
No full textDecades of research implicates peer relationships in internet addiction. Yet, inconsistent findings, underpowered studies, and the tendency for researchers to assume one direction of influence have clouded understanding of whether peer relationships is a vulnerability factor for internet addiction, a consequence of internet addiction, or both. Our primary aim was to address this by using meta-analytic structural equation modeling to test cross-lagged reciprocal relations between peer relationships and internet addiction. Our secondary aim was to examine possible moderators that might explain heterogeneity across studies by conducting a multivariate random-effects meta-analysis. A total of 37 articles were identified for inclusion, including 45,212 subjects. The results show that peer relationships significantly negatively predict internet addiction over time and vice versa. Moderating analyses showed that cultural background had moderating effects on the prediction of peer relationships on internet addiction. Time lag and cultural background had moderating effects on the prediction of internet addiction on peer relationships. The results reveal a complex bidirectional dynamic relationship between peer relationships and internet addiction, providing empirical basis and practical guidance for formulating targeted prevention and intervention strategies
Pelliot chinois 2155
No full textContient : Wei shi er shi lun xu唯 識 二 十 論 序 par Jing mai 靖 邁 ; Da cheng zhuang yan lun xu 大 乘 莊 嚴 論序 par Li Bai yao 李 白 藥 ; Da tang xin yisan zang sheng jiao xu 大 唐 新 譯 三 藏 聖 敎 序 par l'impératriceWu Ze tian(685) ; Compte de peaux debêtes ; Lettres officielles deCao Yuan zhong 曹 元 忠, gui yi jun jie du shi te jin jian jiao tai fu jian zhong shuling 歸 義 軍 節 度 使 特 進 檢 校 太 傅 兼 中 書 令Numérisation effectuée à partir d'un document original
Novel Cell-Virus-Virophage Tripartite Infection Systems Discovered in the Freshwater Lake Dishui Lake in Shanghai, China
No full textRETRACTED ARTICLE: Lycium barbarum polysaccharide alleviates oxygen glucose deprivation-induced PC-12 cells damage by up-regulating miR-24
No full textWe, the Editors and Publisher of the journal Artificial Cells, Nanomedicine, and Biotechnology, have retracted the following article:Shiqing Song, Faliang Lin, Pengyan Zhu, Changyan Wu, Shuling Zhao, Qiao Han & Xiaomei Li (2019) Lycium barbarum polysaccharide alleviates oxygen glucose deprivation-induced PC-12 cells damage by up-regulating miR-24. Artificial Cells, Nanomedicine, and Biotechnology, 47(1), 3994–4000, DOI: 10.1080/21691401.2019.1673767Since publication, concerns have been raised about the integrity of the data in the article. When approached for an explanation, the authors have been unable to verify their original data. We also have concerns regarding the integrity of the authorship, as one author has stated they did not consent to being listed as an author. We are therefore retracting this article and the corresponding author listed in this publication have been informed.We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions.The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’
Boron-doped diamond decorated with metal-organic framework-derived compounds for high-voltage aqueous asymmetric supercapacitors
No full textConductive diamond has been recognized as a promising electrode material for supercapacitors due to its excellent stability and broad electrochemical potential window. To enhance the performance of diamond-based supercapacitors, this study focuses on two key strategies: incorporating redox-active species on the electrodes and/or in the electrolytes to increase the capacitance, and constructing asymmetric supercapacitors to expand the operating voltage range. In this context, pseudocapacitive Co3O4@boron doped diamond (BDD) and Bi-Bi2O3@BDD were synthesized using metal-organic framework (MOF) decorated BDD of Co-MOF@BDD and Bi-MOF@BDD as precursor materials, respectively. An aqueous asymmetric supercapacitor was then assembled using a pseudocapacitive electrode/redox electrolyte system of Co3O4@BDD | 3.0 M KOH+0.05 M K3Fe(CN)6/K4Fe(CN)6 as the positive compartment, and Bi-Bi2O3@BDD | 3.0 M KOH as the negative compartment. The resulting device demonstrated a wide operating voltage of 1.7 V, a maximal energy density of 10.0 Wh L-1 at a power density of 333.2 W L-1. The remarkable performance can be attributed to the Faradaic redox reactions involving [Fe(CN)6]3-/4-, Co3+/Co4+, Bi0/Bi2+/Bi3+ in the electrode materials and electrolytes. This work presents a novel way for fabricating aqueous supercapacitors with high voltage, high energy and power densities, offering significant potential for various energy storage applications
Anufrievia akazu
No full text2. Anufrievia akazu (Matsumura, 1932) n. rec. for China (Fig. 25b) Zygina akazu Matsumura, 1932: 108 Anufrievia akazu: Dworakowska 1970: 763, Fig. 18; Ohara, 2013: 244, Figs 1–2, 8–16 Anufrievia vilbastei Dworakowska, 1970: 763, Figs 12–17. syn. Material examined: 1♂ [NWAFU], CHINA: Sichuan Prov., Mt. Qingcheng, 14.ix.1988, coll. Zhou Jingruo, Zheng Shuling & Xu Qiuyuan. Distribution: China (Sichuan); Japan; Korea.Published as part of Cao, Yanghui, Yang, Meixia, Lin, Shuanghu & Zhang, Yalin, 2018, Review of the leafhopper genus Anufrievia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), pp. 203-232 in Zootaxa 4446 (2) on page 205, DOI: 10.11646/zootaxa.4446.2.2, http://zenodo.org/record/144409
Inorganic–organic hybrid coating material for the online in‐tube solid‐phase microextraction of monohydroxy polycyclic aromatic hydrocarbons in urine
No full textProving Simpson’s Four-Slot Algorithm Using Ownership Transfer
No full textSimpson’s four-slot algorithm has been an instructive example in studying various assertional proof methods/logics geared towards shared variable concurrency. Previously, techniques like rely-guarantee, data refinement and resource separation have been applied to simplify the construction of its correctness proof. Still, an elegant, concise and insightful proof is elusive. Recently with the new generation of logics coming of age which are, for the first time, equipped with ownership transfer, it becomes imperative to ask to what extent can ownership transfer facilitate a nice proof of the algorithm. Ownership transfer is especially promising here because the conflict resolution mechanism in the four-slot algorithm can be easily recast as an implementation based on ownership transfer.
Proving Simpson's Four-Slot Algorithm Using Ownership Transfer
No full textSimpson's four-slot algorithm has been an instructive example in studying various assertional proof methods/logics geared towards shared variable concurrency. Previously, techniques like rely-guarantee, data refinement and resource separation have been applied to simplify the construction of its correctness proof. Still, an elegant, concise and insightful proof is elusive.Recently with the new generation of logics coming of age which are, for the first time, equipped with ownership transfer, it becomes imperative to ask to what extent can ownership transfer facilitate a nice proof of the algorithm. Ownership transfer is especially promising here because the conflict resolution mechanism in the four-slot algorithm can be easily recast as an implementation based on ownership transfer.</jats:p
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