44 research outputs found
Web-based interventions for caregivers of cancer patients: A review of literatures
No full textDiagnosed with cancer is a traumatic event; it does not only affect the diagnosed patients, but also their caregivers. It brings along negative impacts on biopsychosocial health to the caregivers. Supportive interventions are essential for the caregivers to go through the cancer trajectory. In the past, interventions were being delivered in either face-to-face format or delivering written documents. Although Internet becomes a popular platform for delivering interventions given its substantial growth in usage, the effectiveness of this mode of intervention delivery is unclear. The aim of this review is to review existing literatures regarding efficacy of web-based interventions in psychological outcomes of cancer caregivers. A Literature search was performed in December 2012 from seven databases, including, Ovid MEDLINE, EMBASE, PsycINFO, CINHAL, ERIC, British Nursing Index and EBM Reviews. The following keywords were used in the search but were not limited to "paediatric", "parent", "caregiver", "cancer", "web-based", and "psycho education". Totally 4668 citations were identified, after excluding the duplicated and irrelevant citations; finally six studies were included in this review. A review of the literatures identified that the web-based interventions including either online support group only or a combination of informational website and online support group significantly improved coping skills, in a way reduced anxiety, stress, depression, burden, as well as negative mood and perceived bonding in cancer caregivers. It is concluded that a web-based format as a potential platform for delivering intervention to the caregivers of cancer patients for its unique advantage of easy accessibility, and no geographic or time barriers
Systematical synthesis of distamycin analogues and their interaction with herring sperm DNA
No full textA simple procedure for the systematical synthesis of eight distamycin analogues containing N-methyl-pyrrole (Py) and N-methylimidazole (Im) has been developed by a chloroform reaction and DCC coupling reaction without amino protection and deprotection, and the interaction of the analogues with Herring Sperm DNA was investigated by fluorescence spectroscopy.Chemistry, MultidisciplinarySCI(E)6ARTICLE61073-10774
A Step Toward Workplace Obesity Prevention: Evaluation of Weight Management Program for Hospital-based Health Care Providers
No full textBackground: Obesity is a worldwide problem. Healthy workplace and lifestyle are crucial in preventing obesity. A workplace weight management program could create a culture of health and facilitate weight control among health care providers. The present study aims to describe and evaluate the health outcomes of the interaction of professional practice and organizational infrastructure. Method: The hospital-based weight management program was an eight-week pilot randomized controlled study for obese health care providers. The primary outcomes were body weight and body mass index. The secondary outcomes included serum fasting glucose, fasting cholesterol, triglyceride, high- and low-density lipoprotein, body fat percentage, body mass, and quality of life. The RE-AIM framework was used to examine the intervention’s reach, effectiveness, adoption, implementation and maintenance at individual and organizational levels. Results: The program successfully attained the target population. Health care providers demonstrated short-term weight loss and decreased serum fasting cholesterol level after completing the program. The excellent retention rate (95%) of the study suggested that the participants were well-engaged in self-weight management. The program was implemented with adequate resource and support from the health organization. The organization may consider continuing the program in view of its long-term benefits to health care providers. Conclusion: Supportive organizational structure and culture enhanced professional practice and improved the health outcomes of the hospital-based weight management program participants
三 啶配位之銅二價錯合物之合成､結構及鍵結性質研究
No full text[[abstract]]本研究中，合成了一系列銅(II)－三 啶錯合物：
Cu(L) (terpy) (C10 ) ，其中當L 是 啶，4-甲基 啶，3-甲基 啶，2-異丙基咪
唑，n=1 ，而當L=咪唑時n=2 ，運用了元素分析，紅外光光譜，可見光光譜，導電度
，電子自旋光光譜等來探討錯合物的結構及特性。
在這些化合物中Cu(terpy) (py) (C10 ) , Cu(terpy) (HIm) (C10 ) 利用了X-光結
構解析，解出結構，兩者都是五配位四角錐體(square pyramid)分別利用三萴啶的三
個氮及另一含氮配子的氮構成基底面，而在第五配位原子，在前者來自過氯酸根中的
氧，後者則來自另一咪唑配子的氮。
配合了X-光結構解析，可見光光譜分解及理論計算，我們探討了在錯合物中銅－三
啶，銅－ 啶間的鍵結性質，結果發現在三 啶方面，兩端環為π- 接受性質，而中
間環則為π- 供應性質。而在 啶方面，亦發現和銅有π- 鍵存在。
另外，對於銅(II)- 三 啶系統在乙錛中的氧化還原化學亦作了研。配合可見光及循
環狀安圖譜。我們發現Cu(terpy) , Cu(terpy) 都存在，其還原電位分別為-0.2
8V, 0.15V 。
The spatial and temporal distribution of heavy metals in sediments of Victoria Harbour, Hong Kong
No full textAuthor name used in this publication: Chloe Wing-yee TangAuthor name used in this publication: Carman Ching-man Ip2007-2008 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishedGreen (AAM
Polyunsaturated fatty acid-derived lipid mediators and T cell function
No full textCopyright © 2014 Nicolaou, Mauro, Urquhart and Marelli-Berg . This is an open-
access article distributed under the terms of the
Creative Commons Attribution License
(CC BY)
. The use, distribution or reproduction in other forums is permitted, provided
the original author(s) or licensor are credited and that the original publication in this
journal is cited, in accordance with accepted academic practice. No use, distribution or
reproduction is permitted which does not comply with these terms
Positive exchange bias between permalloy and twined (10(1)over-bar0)-Cr2O3 films
No full textWe report the discovery of a positive exchange bias between Ni80Fe20 (Py) and twined (10 (1) over bar0)-Cr2O3 film near its blocking temperature (TB) when it is cooled in an in-plane magnetic field applied along 45 degrees from the two spin configurations of the Cr atoms. This is an abnormal behavior compared to the negative exchange bias at all temperatures below TB when the cooling and measuring magnetic fields are applied along one of the two spin configurations of the Cr atoms. We speculate these results could be related to the exchange interactions between the twined structure of the (10 (1) over bar0)-Cr2O3 film epitaxially grown on the rutile (001)-TiO2 substrate. (C) 2016 Elsevier B.V. All rights reserved.National Basic Research Programs of China (973) [2014CB920902, 2015CB921104, 2013CB921903]; National Natural Science Foundation of China (NSFC) [11574006]; 1000 Talents Program for Young Scientists of ChinaSCI(E)ARTICLE397-40142
Current concepts on oxidative/carbonyl stress, inflammation and epigenetics in pathogenesis of chronic obstructive pulmonary disease
No full textChronic obstructive pulmonary disease (COPD) is a global health problem. The current therapies for COPD are poorly effective and the mainstays of pharmacotherapy are bronchodilators. A better understanding of the pathobiology of COPD is critical for the development of novel therapies. In the present review, we have discussed the roles of oxidative/aldehyde stress, inflammation/immunity, and chromatin remodeling in the pathogenesis of COPD. An imbalance of oxidants/antioxidants caused by cigarette smoke and other pollutants/biomass fuels plays an important role in the pathogenesis of COPD by regulating redox-sensitive transcription factors (e.g., NF-κB), autophagy and unfolded protein response leading to chronic lung inflammatory response. Cigarette smoke also activates canonical/alternative NF-κB pathways and their upstream kinases leading to sustained inflammatory response in lungs. Recently, epigenetic regulation has been shown to be critical for the development of COPD because the expression/activity of enzymes that regulate these epigenetic modifications have been reported to be abnormal in airways of COPD patients. Hence, the significant advances made in understanding the pathophysiology of COPD as described herein will identify novel therapeutic targets for intervention in COPD
Realization of rapid synthesis of H-ZSM-5 zeolite by seed-assisted method for aromatization reactions of methanol or methane
No full textH-ZSM-5 zeolites are successfully synthesized within 1 h with organic-template-free system by the seed-assisted method. The synthetic method not only reduces the production cost of H-ZSM-5 zeolite, but also prevents the pollution of environment compared with the conventional synthesis process. Characterization by SEM, XRD, N2 adsorption-desorption, NH3-TPD and Py-IR confirms that the product of H-ZSM-5 with a high crystallinity and reveals that the rapid synthesis process in accordance with seed surface crystallization mechanism. In order to improve the aromatic selectivity on H-ZSM-5 zeolite, different concentrations of Mo and Zn catalysts were prepared by incipient wetness impregnation and ion-exchange method. Mo-Zn/H-ZSM-5-SAS-1 h have similar catalytic lifetime and higher selectivity of paraxylene in aromatics products compared with Mo-Zn/H-ZSM-5-seed in the reaction of methanol to aromatic. However, the catalytic lifetime of 6%Mo/H-ZSM-5-SAS-1 h is shorter than that of 6%Mo/H-ZSM-5-seed catalyst in methane to benzene reaction under same reaction conditions.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Experimental Investigation of Temperature-Dependent Gilbert Damping in Permalloy Thin Films
No full textThe Gilbert damping of ferromagnetic materials is arguably the most important but least understood phenomenological parameter that dictates real-time magnetization dynamics. Understanding the physical origin of the Gilbert damping is highly relevant to developing future fast switching spintronics devices such as magnetic sensors and magnetic random access memory. Here, we report an experimental study of temperature-dependent Gilbert damping in permalloy (Py) thin films of varying thicknesses by ferromagnetic resonance. From the thickness dependence, two independent contributions to the Gilbert damping are identified, namely bulk damping and surface damping. Of particular interest, bulk damping decreases monotonically as the temperature decreases, while surface damping shows an enhancement peak at the temperature of similar to 50 K. These results provide an important insight to the physical origin of the Gilbert damping in ultrathin magnetic films.National Basic Research Programs of China (973) [2013CB921903, 2014CB920902, 2015CB921104]; National Natural Science Foundation of China (NSFC) [11574006]; 1000 Talents Program for Young Scientists of ChinaSCI(E)[email protected]; [email protected]
