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https://www.readbyqxmd.com/read/28808334/cardiorespiratory-optimization-during-improvised-singing-and-toning
#1
N F Bernardi, S Snow, I Peretz, H D Orozco Perez, N Sabet-Kassouf, A Lehmann
We evaluated the effect of different forms of singing on cardiorespiratory physiology, and we aimed at disentangling the role of breathing from that of vocal production. Cardiorespiratory recordings were obtained from 20 healthy adults at rest and during: a) singing of familiar slow songs as in the standard form of Western culture; b) improvised vocalization of free vowel sounds, known as toning. To disentangle the role of breathing from that of vocal production, we compared the vocal conditions with matched breathing-only conditions...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807832/pattern-of-exposure-to-information-and-its-impacts-on-seasonal-influenza-vaccination-uptake-in-nurses
#2
Edward Ka Hin Cheung, Sing Lee, Shui Shan Lee
BACKGROUND: Coverage of annual influenza vaccination of healthcare workers (HCWs) varies and remains at a sub-optimal level in many countries. As HCWs are often exposed to a variety of information on vaccination, their pattern of exposure may impact their decision, which deserves further investigation. METHOD: Practising nurses in Hong Kong were invited to participate in an anonymous online survey in February 2015, after the winter seasonal peak. The questionnaire covered demographics, work nature and experiences, vaccination uptake history and reasons for vaccination decisions...
August 11, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28806713/activity-groups-for-persons-with-dementia-personal-predictors-of-participation-engagement-and-mood
#3
Jiska Cohen-Mansfield
This study examined the relationship between personal characteristics and attendance, engagement, sleep, and mood outcomes of persons with dementia participating in group activities. The purpose of this study is to examine which persons with dementia benefit most from group interventions. Sixty-nine persons with dementia were observed by research and therapeutic recreation staff during 10 types of group activities (reading aloud with discussion, choral-singing, baking, creative storytelling, brain games, active games, exercise, reminiscence poetry, holiday newsletter, and holiday discussions) on multiple outcomes (attendance duration, sleep, engagement, active participation, attitude, and positive mood)...
July 25, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28806077/structural-studies-of-bulk-to-nano-size-niobium-oxides-with-correlation-to-their-acidity
#4
Hannah Theresa Kreissl, Molly Meng-Jung Li, Yung-Kang Peng, Keizo Nakagawa, Thomas Hooper, John V Hanna, Ashley M Shepherd, Tai-Sing Wu, Yun-Liang Soo, S C Edman Tsang
Hydrated niobium oxides are used as strong solid acids with a wide variety of catalytic applications, yet the correlations between structure and acidity remain unclear. New insights into the structural features giving rise to Lewis and Brønsted acid sites are presently achieved. It appears that Lewis acid sites can arise from lower coordinate NbO5 and in some cases NbO4 sites, which are due to the formation of oxygen vacancies in thin and flexible NbO6 systems. Such structural flexibility of Nb-O systems is particularly pronounced in high surface area nanostructured materials, including few-to monolayer or mesoporous Nb2O5*nH2O synthesized in the presence of stabilizers...
August 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28797530/factors-affecting-voice-therapy-completion-in-singers
#5
Michelle Adessa, Tara Stadelman-Cohen, Lauryn Zipse, A J Guarino, James T Heaton
OBJECTIVE: The purpose of this study was to determine (a) which factors may affect singers' completing voice therapy, and (b) develop predictive profiles to capture those singers at risk for dropping out of voice therapy. STUDY DESIGN: A case-control study was conducted comparing singers who completed voice therapy to singers who dropped out of voice therapy. METHODS: Six factors, including age, gender, diagnosis, length of time between laryngology referral and commencement of therapy, type of singer, and referral source were investigated in relation to voice therapy completion using the medical records of 409 singers in the Massachusetts General Hospital Voice Center database...
August 7, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28796996/call-for-caution-neonatal-portal-vein-thrombosis-following-enbucrilate-embolization-of-placental-chorioangioma
#6
Hian Yan Voon, Rafaie Amin, Juan Loong Kok, Kia Sing Tan
We illustrate a case of giant placental chorioangioma presenting at 20 weeks of gestation. Subsequent monitoring revealed enlargement of the lesion, associated with fetal anemia and cardiac failure, prompting in utero intervention. Amnioreduction followed by percutaneous embolization of the tumour with enbucrilate:Lipiodol Ultra-Fluid™ at a dilution of 1:5 was successfully performed. No repeat intervention or additional supportive measures were required throughout pregnancy and the baby was delivered at 36 weeks of gestation, following spontaneous labour...
August 11, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28796893/singing-from-north-to-south-latitudinal-variation-in-timing-of-dawn-singing-under-natural-and-artificial-light-conditions
#7
Arnaud Da Silva, Bart Kempenaers
1. Animals breeding at northern latitudes experience drastic changes in daily light conditions during the breeding season with decreasing periods of darkness, whereas those living at lower latitudes are exposed to naturally dark nights throughout the year. Nowadays, many animals are also exposed to artificial night lighting (often referred to as light pollution). 2. Animals strongly rely on variation in light levels to time their daily and seasonal behaviour. Previous work on passerine birds showed that artificial night lighting leads to earlier onset of dawn song...
August 10, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28794216/higher-songs-of-city-birds-may-not-be-an-individual-response-to-noise
#8
Sue Anne Zollinger, Peter J B Slater, Erwin Nemeth, Henrik Brumm
It has been observed in many songbird species that populations in noisy urban areas sing with a higher minimum frequency than do matched populations in quieter, less developed areas. However, why and how this divergence occurs is not yet understood. We experimentally tested whether chronic noise exposure during vocal learning results in songs with higher minimum frequencies in great tits (Parus major), the first species for which a correlation between anthropogenic noise and song frequency was observed. We also tested vocal plasticity of adult great tits in response to changing background noise levels by measuring song frequency and amplitude as we changed noise conditions...
August 16, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28794151/peripheral-inflammatory-markers-in-alzheimer-s-disease-a-systematic-review-and-meta-analysis-of-175-studies
#9
Ka Sing P Lai, Celina S Liu, Allison Rau, Krista L Lanctôt, Cristiano A Köhler, Maureen Pakosh, André F Carvalho, Nathan Herrmann
OBJECTIVES: Increasing evidence suggests that inflammation is involved in Alzheimer's disease (AD) pathology. This study quantitatively summarised the data on peripheral inflammatory markers in patients with AD compared with healthy controls (HC). METHODS: Original reports containing measurements of peripheral inflammatory markers in AD patients and HC were included for meta-analysis. Standardised mean differences were calculated using a random effects model. Meta-regression and exploration of heterogeneity was performed using publication year, age, gender, Mini-Mental State Examination (MMSE) scores, plasma versus serum measurements and immunoassay type...
August 9, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28792880/analysis-of-plasma-epstein-barr-virus-dna-to-screen-for-nasopharyngeal-cancer
#10
K C Allen Chan, John K S Woo, Ann King, Benny C Y Zee, W K Jacky Lam, Stephen L Chan, Sam W I Chu, Constance Mak, Irene O L Tse, Samantha Y M Leung, Gloria Chan, Edwin P Hui, Brigette B Y Ma, Rossa W K Chiu, Sing-Fai Leung, Andrew C van Hasselt, Anthony T C Chan, Y M Dennis Lo
BACKGROUND: Circulating cell-free Epstein-Barr virus (EBV) DNA is a biomarker for nasopharyngeal carcinoma. We conducted a prospective study to investigate whether EBV DNA in plasma samples would be useful to screen for early nasopharyngeal carcinoma in asymptomatic persons. METHODS: We analyzed EBV DNA in plasma specimens to screen participants who did not have symptoms of nasopharyngeal carcinoma. Participants with initially positive results were retested approximately 4 weeks later, and those with persistently positive EBV DNA in plasma underwent nasal endoscopic examination and magnetic resonance imaging (MRI)...
August 10, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28783380/streptococcus-pneumoniae-serotype-19a-worldwide-epidemiology
#11
Raul Isturiz, Heather L Sings, Betsy Hilton, Adriano Arguedas, Ralf-René Reinert, Luis Jodar
Streptococcus pneumoniae causes mucosal and invasive diseases with high morbidity and mortality. Introduction of the 7-valent pneumococcal conjugate vaccine (PCV7) into routine infant immunization programs worldwide resulted in serotype 19A becoming a leading cause of the remaining pneumococcal disease burden in vaccinated and unvaccinated individuals. This article reviews the impact of the latest generation PCVs (10-valent PCV, PCV10, and 13-valent PCV, PCV13) on serotype 19A. Areas covered: This article covers immune responses elicited by PCV7, PCV10 and PCV13 against serotype 19A and their impact on nasopharyngeal (NP) carriage and disease in vaccinated and unvaccinated populations using data from surveillance systems, randomized controlled trials, and observational studies...
August 7, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28783326/tracking-dietary-sources-of-short-and-medium-chlorinated-paraffins-in-marine-mammals-through-a-subtropical-marine-food-web
#12
Lixi Zeng, James C W Lam, Hui Chen, Bibai Du, Kenneth Mei Yee Leung, Kwan Sing Paul Kwan-Sing Lam
Our previous study revealed an elevated accumulation of SCCPs and MCCPs in marine mammals from Hong Kong waters in the South China Sea. To examine the bioaccumulation potential and biomagnification in these apex predators, we sampled the dietary items of marine mammals and tracked the sources of SCCPs and MCCPs through a marine food web in this region. Sixteen fish species, seven crustacean species and four mollusk species were collected and the main prey species were identified for two species of marine mammals...
August 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28780247/direct-detection-of-mycobacterium-tuberculosis-and-drug-resistance-in-respiratory-specimen-using-abbott-realtime-mtb-detection-and-rif-inh-resistance-assay
#13
Kingsley King-Gee Tam, Kenneth Siu-Sing Leung, Sabrina Wai-Chi To, Gilman Kit-Hang Siu, Terrence Chi-Kong Lau, Victor Chi-Man Shek, Cindy Wing-Sze Tse, Samson Sai-Yin Wong, Pak-Leung Ho, Wing-Cheong Yam
Abbott RealTime MTB (Abbott-RT) in conjunction with Abbott RealTime MTB RIF/INH Resistance (Abbott-RIF/INH) is a new, high-throughput automated nucleic acid amplification platform (Abbott-MDR) for detection of Mycobacterium tuberculosis complex (MTBC) and the genotypic markers for rifampicin (RIF) and isoniazid (INH) resistance directly from respiratory specimens. This prospective study evaluated the diagnostic performance of this new platform for MTBC and multidrug-resistant tuberculosis (MDR-TB) using 610 sputum specimens in a tuberculosis high-burden setting...
July 1, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28779940/choices-between-chinese-and-western-medicine-in-hong-kong-interactions-of-institutional-environment-health-beliefs-and-treatment-outcomes
#14
Kai Sing Sun, Yeung Hung Cheng, Yuk Tsan Wun, Tai Pong Lam
BACKGROUND: About 15-20% of the general public in Hong Kong consult TCM practitioners. This study explored the decision making process involved in Hong Kong Chinese's choice between TCM and western medicine. METHODS: Eight focus group interviews (six to eight participants per group) and four individual interviews were conducted. RESULTS: The participants kept an "old fashioned" concept of TCM. Many saw TCM as a non-scientific practice and had stronger trust on the credibility of western medicine...
August 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/28772961/reduction-of-defects-in-algan-grown-on-nanoscale-patterned-sapphire-substrates-by-hydride-vapor-phase-epitaxy
#15
Chi-Tsung Tasi, Wei-Kai Wang, Tsung-Yen Tsai, Shih-Yung Huang, Ray-Hua Horng, Dong-Sing Wuu
In this study, a 3-μm-thick AlGaN film with an Al mole fraction of 10% was grown on a nanoscale-patterned sapphire substrate (NPSS) using hydride vapor phase epitaxy (HVPE). The growth mechanism, crystallization, and surface morphology of the epilayers were examined using X-ray diffraction, transmission electron microscopy (TEM), and scanning electron microscopy at various times in the growth process. The screw threading dislocation (TD) density of AlGaN-on-NPSS can improve to 1-2 × 10⁸ cm(-2), which is significantly lower than that of the sample grown on a conventional planar sapphire substrate (7 × 10⁸ cm(-2))...
May 31, 2017: Materials
https://www.readbyqxmd.com/read/28772740/investigation-of-the-defect-structure-of-congruent-and-fe-doped-linbo%C3%A2-powders-synthesized-by-the-combustion-method
#16
You-Yun Li, Hao-Long Chen, Guo-Ju Chen, Chia-Liang Kuo, Ping-Hung Hsieh, Weng-Sing Hwang
Fe-doped LiNbO₃ synthesized by the combustion method to seek new multiferroic materials exhibits room-temperature ferromagnetism, as reported in our previous work [1]. In this work, the defect structure of congruent and Fe-doped LiNbO₃ (0.57-3.3 mol %) powders was investigated in detail by several methods. The molar ratio of [Li]/([Li]+[Nb]) was determined by the Curie temperature (Tc) via DSC. Two peaks of Tc were observed due to phase splitting [2], and the phase at lower Tc disappears as the Fe doping concentration increases...
April 2, 2017: Materials
https://www.readbyqxmd.com/read/28772649/investigation-of-quasi-static-indentation-response-of-inkjet-printed-sandwich-structures-under-various-indenter-geometries
#17
Vishwesh Dikshit, Arun Prasanth Nagalingam, Yee Ling Yap, Swee Leong Sing, Wai Yee Yeong, Jun Wei
The objective of this investigation was to determine the quasi-static indentation response and failure mode in three-dimensional (3D) printed trapezoidal core structures, and to characterize the energy absorbed by the structures. In this work, the trapezoidal sandwich structure was designed in the following two ways. Firstly, the trapezoidal core along with its facesheet was 3D printed as a single element comprising a single material for both core and facesheet (type A); Secondly, the trapezoidal core along with facesheet was 3D printed, but with variation in facesheet materials (type B)...
March 14, 2017: Materials
https://www.readbyqxmd.com/read/28772361/direct-printing-of-1-d-and-2-d-electronically-conductive-structures-by-molten-lead-free-solder
#18
Chien-Hsun Wang, Ho-Lin Tsai, Weng-Sing Hwang
This study aims to determine the effects of appropriate experimental parameters on the thermophysical properties of molten micro droplets, Sn-3Ag-0.5Cu solder balls with an average droplet diameter of 50 μm were prepared. The inkjet printing parameters of the molten micro droplets, such as the dot spacing, stage velocity and sample temperature, were optimized in the 1D and 2D printing of metallic microstructures. The impact and mergence of molten micro droplets were observed with a high-speed digital camera...
December 22, 2016: Materials
https://www.readbyqxmd.com/read/28771084/mechanisms-of-action-of-uncaria-rhynchophylla-ethanolic-extract-for-its-vasodilatory-effects
#19
Yean Chun Loh, Yung Sing Ch'ng, Chu Shan Tan, Mariam Ahmad, Mohd Zaini Asmawi, Mun Fei Yam
Uncaria rhynchophylla is one of the major components included in Traditional Chinese Medicine prescriptions for hypertensive treatment. Previous studies have suggested that U. rhynchophylla might contain vasodilation-mediating active compounds, especially indole alkaloids. Hence, this study was carried out to determine the vasodilatory effects of U. rhynchophylla, which was extracted by different solvents. The most effective extract was then further studied for its signaling mechanism pathways. The authenticity of U...
August 3, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28770846/an-ultrahot-gas-giant-exoplanet-with-a-stratosphere
#20
Thomas M Evans, David K Sing, Tiffany Kataria, Jayesh Goyal, Nikolay Nikolov, Hannah R Wakeford, Drake Deming, Mark S Marley, David S Amundsen, Gilda E Ballester, Joanna K Barstow, Lotfi Ben-Jaffel, Vincent Bourrier, Lars A Buchhave, Ofer Cohen, David Ehrenreich, Antonio García Muñoz, Gregory W Henry, Heather Knutson, Panayotis Lavvas, Alain Lecavelier des Etangs, Nikole K Lewis, Mercedes López-Morales, Avi M Mandell, Jorge Sanz-Forcada, Pascal Tremblin, Roxana Lupu
Infrared radiation emitted from a planet contains information about the chemical composition and vertical temperature profile of its atmosphere. If upper layers are cooler than lower layers, molecular gases will produce absorption features in the planetary thermal spectrum. Conversely, if there is a stratosphere-where temperature increases with altitude-these molecular features will be observed in emission. It has been suggested that stratospheres could form in highly irradiated exoplanets, but the extent to which this occurs is unresolved both theoretically and observationally...
August 2, 2017: Nature
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