Keggin heteropolyacid supported on BN and C3N4: Comparison between catalytic and photocatalytic alcohol dehydration
Publication date: 15 June 2020Source: Materials Science in Semiconductor Processing, Volume 112Author(s): Francesca Rita Pomilla, Farnaz Fazlali, Elisa I. García-López, Giuseppe Marcì, Ali Reza Mahjoub, Igor Kritsov, Leonarda F. Liotta, Leonardo PalmisanoAbstractThe Keggin heteropolyacid (HPA), H3PW12O40 (PW12) has been supported on commercial boron nitride (BN) and two types of home prepared carbon nitride (C3N4). The supported PW12 was used in the gas-solid (photo)catalytic 2-propanol dehydration reaction to give propene at atmospheric pressure and temperatures in the range 70–120 °C and resulted more active than the pristine PW12. Reaction rate increased by increasing the temperature. Noticeably, the propene formation rate was higher by irradiating the catalytic system. The PW12/BN material resulted more active than PW12/C3N4. The acidity of the HPA cluster accounts for the catalytic role, whereas both the acidity and the redox properties of the HPA species were responsible for the increase of the reaction rate in the photo-assisted catalytic reaction.
A causal relationship between sleep disturbances and suicidal behavior has been previously reported. Insomnia and nightmares are considered as hallmarks of posttraumatic stress disorder (PTSD). In addition, patients with PTSD have an increased risk for sui...
This study examines the interaction between three types of cyber IPA (cyber psy...
Conclusion: Serum GGT level was a significant predictor of subsequent risk of diabetes mellitus, which increased by 4% for every 1 IU/L increase in GGT when GGT was less than 24 IU/L. PMID: 32215009 [PubMed]
Publication date: Available online 27 March 2020Source: Nutrition, Metabolism and Cardiovascular DiseasesAuthor(s): Feiyan Liu, Yu Liu, Xizhuo Sun, Zhaoxia Yin, Honghui Li, Kunpeng Deng, Yang Zhao, Bingyuan Wang, Yongcheng Ren, Xuejiao Liu, Dongdong Zhang, Xu Chen, Cheng Cheng, Leilei Liu, Dechen Liu, Guozhen Chen, Shihao Hong, Chongjian Wang, Ming Zhang, Dongsheng Hu
Publication date: Available online 27 March 2020Source: Journal of Hospital InfectionAuthor(s): H.J. Breidablik, D.E. Lysebo, L. Johannesse, Å. Skare, O. Kleiven, J.R. Andersen
The objective was to investigate sleep disorders and associated sociodemographic and behavioral factors. A census of university students was carried out. Questions extracted from the Munich Chronotype Questionnaire investigated: insufficient sleep duration (
Publication date: June 2020Source: Research in Developmental Disabilities, Volume 101Author(s): Rabya Mughal, Anna Joyce, Catherine Hill, Dagmara Dimitriou
Authors: Yu C, Zhan X, Liu C, Liao S, Xu J, Liang T, Zhang Z, Chen J Abstract BACKGROUND This retrospective study aimed to investigate the risk factors associated with the recurrence of L5-S1 disc herniation after percutaneous endoscopic transforaminal discectomy (PETD). MATERIAL AND METHODS There were 484 patients L5-S1 disc herniation who underwent PETD who were divided into the recurrence group (n=46) and the non-recurrence group (n=438). Transforaminal endoscopic approaches included modifications of the Yeung endoscopy spine system (YESS) (the intraforaminal intradiscal approach) and the transforaminal endoscop...
CONCLUSION: Thus the present population based study results suggest an inverse association of DM and oral cancer with metformin and negative association of habits with DM and Metformin in etiology of oral cancer. PMID: 32212811 [PubMed - in process]
CONCLUSION: The results show that opium use can be considered as an important risk factor for H and N cancers. Also in Iran, opium seems to play a more important role than cigarette smoking. PMID: 32212808 [PubMed - in process]