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Tanning behaviours

Tan Xing, Srikanth Mateti, Lu Hua Li, Fengxian Ma, Aijun Du, Yury Gogotsi, Ying Chen
Two-dimensional (2D) materials can be produced using ball milling with the help of liquid surfactants or solid exfoliation agents, as ball milling of bulk precursor materials usually produces nanosized particles because of high-energy impacts. Post-milling treatment is thus needed to purify the nanosheets. We show here that nanosheets of graphene, BN, and MoS2 can be produced by ball milling of their bulk crystals in the presence of ammonia or a hydrocarbon ethylene gas and the obtained nanosheets remain flat and maintain their single-crystalline structure with low defects density even after a long period of time; post-milling treatment is not needed...
October 19, 2016: Scientific Reports
Xiao-Juan Wang, Yin-Ping Gao, Nan-Nan Lu, Wei-Shuo Li, Ji-Fang Xu, Xiao-Ying Ying, Gang Wu, Mei-Hua Liao, Chao Tan, Ling-Xiao Shao, Ying-Mei Lu, Chen Zhang, Kohji Fukunaga, Feng Han, Yong-Zhong Du
Clinical treatment for vascular dementia still remains a challenge mainly due to Blood-Brain Barrier (BBB). Here, a micelle based on polysialic acid (PSA) which is a hydrophilic and endogenous carbohydrate polymer, was designed to deliver calmodulin antagonist for therapy of vascular dementia. PSA was firstly chemically conjugated with octadecylamine (ODA), and the obtained PSA-ODA copolymer could self-assemble into micelle in aqueous solution with a 120.0 μg/mL critical micelle concentration. The calmodulin antagonist loaded PSA-ODA micelle, featuring sustained drug release behaviour over a period of 72 h with 3...
October 17, 2016: ACS Applied Materials & Interfaces
Anne Vuadens, Simone Ackermann, Fabio Levi, Jean-Luc Bulliard
Switzerland, particularly its western region, has the highest incidence of melanoma in Europe. Although the risk of melanoma increases with sun overexposure during childhood, sun-related knowledge and attitudes of Swiss children are scarcely documented. We report the first investigation of the knowledge of the danger of ultraviolet radiation, attitudes towards a suntan and parental influence of schoolchildren in western Switzerland. All fifth, eighth and eleventh graders (average ages of 9, 12 and 15, respectively) in the 18 primary (fifth grade, n=431) and secondary (eighth and eleventh grades, n=837) public schools of La Chaux-de-Fonds were surveyed during regular school classes...
October 5, 2016: European Journal of Cancer Prevention
Y P Liu, C G Wang, H F Tan, M K Wadee
A model is proposed based on a Fourier series method to analyse the interactive bending wrinkling behaviour of inflated beams. The whole wrinkling evolution is tracked and divided into three stages by identifying the bifurcations of the equilibrium path. The critical wrinkling and failure moments of the inflated beam can then be predicted. The global-local interactive buckling pattern is elucidated by the proposed theoretical model and also verified by non-contact experimental tests. The effects of geometric parameters, internal pressure and boundary conditions on the buckling of inflated beams are investigated finally...
September 2016: Proceedings. Mathematical, Physical, and Engineering Sciences
Amelia K Smit, David Espinoza, Ainsley J Newson, Rachael L Morton, Georgina Fenton, Lucinda Freeman, Kate Dunlop, Phyllis N Butow, Matthew H Law, Michael G Kimlin, Louise A Keogh, Suzanne J Dobbinson, Judy Kirk, Peter A Kanetsky, Graham J Mann, Anne E Cust
BACKGROUND: Communication of personalised melanoma genomic risk information may improve melanoma prevention behaviours. METHODS: We evaluated the feasibility and acceptability of communicating personalised genomic risk of melanoma to the public, and its preliminary impact on behaviours and psychosocial outcomes. 118 people aged 22-69 years provided a saliva sample and were randomised to the control (non-personalised educational materials), or intervention (personalised booklet presenting melanoma genomic risk as absolute and relative risks and a risk category based on variants in 21 genes, telephone-based genetic counselling, and non-personalised educational materials)...
October 4, 2016: Cancer Epidemiology, Biomarkers & Prevention
Shihui Yu, Xiaoyu Zhang, Guoxin Tan, Lei Tian, Dandan Liu, Yaxuan Liu, Xinggang Yang, Weisan Pan
In this work, a stimuli-responsive three dimensional cross-linked hydrogel system containing carboxymethyl chitosan (CMC) and poloxamer composed of a poly (ethylene oxide)/poly (propylene oxide)/poly (ethylene oxide) (PEO-PPO-PEO) block copolymer was constructed, and its aqueous solution was found to undergo a reversible sol-gel transition upon a temperature and/or pH change at a very low concentration. The hydrogels were synthesized via a cross-linking reaction using glutaraldehyde (GA) as the cross-linking agent...
January 2, 2017: Carbohydrate Polymers
May Loong Tan, Jacqueline J Ho, Keng Hwang Teh
BACKGROUND: About 5% of school children have a specific learning disorder, defined as unexpected failure to acquire adequate abilities in reading, writing or mathematics that is not a result of reduced intellectual ability, inadequate teaching or social deprivation. Of these events, 80% are reading disorders. Polyunsaturated fatty acids (PUFAs), in particular, omega-3 and omega-6 fatty acids, which normally are abundant in the brain and in the retina, are important for learning. Some children with specific learning disorders have been found to be deficient in these PUFAs, and it is argued that supplementation of PUFAs may help these children improve their learning abilities...
September 28, 2016: Cochrane Database of Systematic Reviews
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September 2016: Health Promotion and Chronic Disease Prevention in Canada
Sarah J Hardcastle, Rachael Glassey, Stuart Salfinger, Jason Tan, Paul Cohen
BACKGROUND: The study purpose was to investigate endometrial cancer survivors' health perceptions following cessation of active cancer treatment and to explore factors influencing participation in health-promoting behaviors. METHODS: Face-to-face interviews were conducted with participants who had completed active treatment of cancer within the previous 3 years. Participants were 22 endometrial cancer survivors (mean age = 62.55 years, SD = 7.08) at risk of cardiovascular disease who were recruited from 2 oncologists in Perth, Western Australia...
September 25, 2016: Psycho-oncology
Mark B Lundeberg, Yuanda Gao, Achim Woessner, Cheng Tan, Pablo Alonso-González, Kenji Watanabe, Takashi Taniguchi, James Hone, Rainer Hillenbrand, Frank H L Koppens
Controlling, detecting and generating propagating plasmons by all-electrical means is at the heart of on-chip nano-optical processing. Graphene carries long-lived plasmons that are extremely confined and controllable by electrostatic fields; however, electrical detection of propagating plasmons in graphene has not yet been realized. Here, we present an all-graphene mid-infrared plasmon detector operating at room temperature, where a single graphene sheet serves simultaneously as the plasmonic medium and detector...
September 19, 2016: Nature Materials
Jörg Schweiggert, Davide Panigada, Ann Na Tan, Dimitris Liakopoulos
The precise temporal and spatial concentration of microtubule-associated proteins (MAPs) within the cell is fundamental to ensure chromosome segregation and correct spindle positioning. MAPs form an intricate web of interactions among each other and compete for binding sites on microtubules. Therefore, when assessing cellular phenotypes upon MAP up- or downregulation, it is important to consider the protein interaction network between individual MAPs. Here, we show that changes in the amounts of the spindle positioning factor Kar9 specifically affect the distribution of yeast EB1 on spindle microtubules, without influencing other microtubule-associated interacting partners of Kar9, i...
September 13, 2016: Cell Cycle
Henrike Hartung, Sonny K H Tan, Yasin Temel, Trevor Sharp
High-frequency stimulation (HFS) of the subthalamic nucleus (STN) is often used to treat movement disability in advanced Parkinson's disease, but some patients experience debilitating psychiatric effects including depression. Interestingly, HFS of the STN modulates 5-HT neurons in the dorsal raphe nucleus (DRN) which are linked to depression, but the neural substrate of this effect is unknown. Here, we tested the effect of STN stimulation on neuronal activity in the lateral habenula nucleus (LHb), an important source of input to DRN 5-HT neurons and also a key controller of emotive behaviours...
September 13, 2016: European Journal of Neuroscience
Su-Yin Tan, Robert Haining
Public health and criminology have developed largely independently of one another at the research and policy levels so that the links between crime victimization and health status are not well understood. Although it is not difficult to support the idea of crime as a threat to the health of individuals and the wider community, the difficulty lies in quantifying the impact of crime on public health, while controlling other variables, including gender and ethnicity. We report the results of a study, the goals of which were to: develop an understanding conceptually of the relationships between different types of crime (violent and non-violent) and health; explore the impact of victimization on quality of life and physical and psychological wellbeing; investigate the role of social and demographic factors in shaping any relationships...
October 2016: Social Science & Medicine
Songwen Tan, Weiguo Li
This paper presents an experimental study on behaviour of fouling-related components during saline wastewater treatments in an enhanced mesoporous membrane bioreactor (MBR) system integrated with a biological contact oxidation reactor (BCOR). By monitoring the transmembrane pressure, the MBR system without BCOR assistance was observed to get membrane fouling easier during saline wastewater treatments. Typically, the concentration of total EPS gradually increased in the MBR system over the operation time, while no significant change in its concentration was observed in the BCOR-MBR system...
November 2016: Bioresource Technology
Evangeline S L Tan, Russell M F Hawkins
PURPOSE: This study aimed to compare a sample of females with anorexia nervosa in Singapore with international clinical and population samples from published data in terms of endorsement of risk factors related to anorexia nervosa, severity of eating pathology and levels of psychosocial impairment and to explore the nature of the relationships between the anorexia nervosa risk factors and adherence to Asian cultural values. METHOD: Data from the Eating Disorder Inventory-3 (EDI-3), the Eating Attitudes Test (EAT-26), the Perceived Sociocultural Pressure Scale (PSPS), the Ideal Body Stereotype Scale (IBSS), the Eating Disorder Examination Questionnaire (EDE-Q), the Clinical Impairment Assessment Questionnaire, and the Asian American Values Scale-Multidimensional (AAVS-M) were collected from 41 female patients (13-31 years old) who presented for treatment of anorexia nervosa at the Singapore General Hospital...
August 31, 2016: Eating and Weight Disorders: EWD
Ashley K Day, Carlene J Wilson, Amanda D Hutchinson, Rachel M Roberts
Australia has a significant proportion of residents of Asian heritage. Although the incidence of skin cancer is lower in those of Asian heritage than Caucasians, their prognosis is often worse. Sociocultural variables are central to the tanning behaviours of individuals from Western cultures. We examined the role of sociocultural variables in the tanning behaviours (outdoor tanning, indoor/solarium and fake tan use) among Asian Australians. A sample of 399 young adults identifying either as a person of Asian heritage or as Asian Australian participated in an online survey...
October 2016: Journal of Primary Prevention
E Harland, J Griffith, H Lu, T Erickson, K Magsino
INTRODUCTION: Although indoor tanning causes cancer, it remains relatively common among adolescents. Little is known about indoor tanning prevalence and habits in Canada, and even less about associated behaviours. This study explores the prevalence of adolescent indoor tanning in Manitoba and its association with other demographic characteristics and health behaviours. METHODS: We conducted secondary analyses of the 2012/13 Manitoba Youth Health Survey data collected from Grade 7 to 12 students (n = 64 174) and examined associations between indoor tanning (whether participants had ever used artificial tanning equipment) and 25 variables...
August 2016: Health Promotion and Chronic Disease Prevention in Canada
Ai May Tan, Anthony D LaMontagne, Dallas R English, Peter Howard
BACKGROUND: Osteoporosis is a debilitating disease. Adequate calcium consumption and physical activity are the two major modifiable risk factors. This paper describes the major outcomes and efficacy of a workplace-based targeted behaviour change intervention to improve the dietary and physical activity behaviours of working women in sedentary occupations in Singapore. METHODS: A cluster-randomized design was used, comparing the efficacy of a tailored intervention to standard care...
2016: BMC Public Health
Kok Ming Goh, Oi Ming Lai, Faridah Abas, Chin Ping Tan
Soy sauce fermentation was simulated in a laboratory and subjected to 10min of sonication. A full factorial design, including different cycles, probe size, and amplitude was used. The composition of 17 free-amino acids (FAAs) was determined by the AccQ-Tag method with fluorescent detection. Main effect plots showed total FAAs extraction was favoured under continuous sonication at 100% amplitude using a 14mm diameter transducer probe, reaching 1214.2±64.3mg/100ml of total FAAs. Moreover, after 7days of fermentation, sonication treatment caused significantly higher levels (p<0...
January 15, 2017: Food Chemistry
Chun-Hsiang Tan, Peter A McNaughton
Thermally activated ion channels are known to detect the entire thermal range from extreme heat (TRPV2), painful heat (TRPV1, TRPM3 and ANO1), non-painful warmth (TRPV3 and TRPV4) and non-painful coolness (TRPM8) through to painful cold (TRPA1). Genetic deletion of each of these ion channels, however, has only modest effects on thermal behaviour in mice, with the exception of TRPM8, the deletion of which has marked effects on the perception of moderate coolness in the range 10-25 °C. The molecular mechanism responsible for detecting non-painful warmth, in particular, is unresolved...
August 25, 2016: Nature
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