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Bach Xuan Tran, Hoa Thi DO, Luong Thanh Nguyen, Victoria Boggiano, Huong Thi LE, Xuan Thanh Thi LE, Ngoc Bao Trinh, Khanh Nam DO, Cuong Tat Nguyen, Thanh Trung Nguyen, Anh Kim Dang, Hue Thi Mai, Long Hoang Nguyen, Selena Than, Carl A Latkin
Consumption of fast food and street food is increasingly common among Vietnamese, particularly in large cities. The high daily demand for these convenient food services, together with a poor management system, has raised concerns about food hygiene and safety (FHS). This study aimed to examine the FHS knowledge and practices of food processors and sellers in food facilities in Hanoi, Vietnam, and to identify their associated factors. A cross-sectional study was conducted with 1,760 food processors and sellers in restaurants, fast food stores, food stalls, and street vendors in Hanoi in 2015...
March 15, 2018: Journal of Food Protection
David S Sharlin, Lily Ng, François Verrey, Theo J Visser, Ye Liu, Rafal T Olszewski, Michael Hoa, Heike Heuer, Douglas Forrest
Transmembrane proteins that mediate the cellular uptake or efflux of thyroid hormone potentially provide a key level of control over neurodevelopment. In humans, defects in one such protein, solute carrier SLC16A2 (MCT8) are associated with psychomotor retardation. Other proteins that transport the active form of thyroid hormone triiodothyronine (T3) or its precursor thyroxine (T4) have been identified in vitro but the wider significance of such transporters in vivo is unclear. The development of the auditory system requires thyroid hormone and the cochlea is a primary target tissue...
March 13, 2018: Scientific Reports
Hoa Thanh Phan, Thien Xuan Dinh, Phong Nhu Bui, Van Thanh Dau
In this paper, we report on the design, simulation, and experimental analysis of a miniaturized device that can generate multiple circulated jet flows. The device is actuated by a lead zirconate titanate (PZT) diaphragm. The flows in the device were studied using three-dimensional transient numerical simulation with the programmable open source OpenFOAM and was comparable to the experimental result. Each flow is verified by two hotwires mounted at two positions inside each consisting chamber. The experiment confirmed that the flow was successfully created, and it demonstrated good agreement with the simulation...
March 13, 2018: Sensors
Melyssa Hancock, Michael Hoa, Sonya Malekzadeh
Advances in modern communications and information technology have helped to improve access to, and quality of, health care and education. These enhancements include a variety of World Wide Web-based and mobile learning platforms, such as eLearning, mLearning, and open education resources. This article highlights the innovative approaches that have fostered improved collaboration and coordination of global health efforts in otolaryngology.
March 7, 2018: Otolaryngologic Clinics of North America
Navid Bani Hassan, Zabih Ghassemlooy, Stanislav Zvanovec, Pengfei Luo, Hoa Le-Minh
We propose, for the first time to the best of our knowledge, a novel non-line-of-sight 2×N indoor optical camera communication system, where N is the number of pixels in the camera with a unique packet structure and a detection methodology for extracting the data from the recorded video streams. A comprehensive theoretical model for the proposed system is presented. The proposed system is experimentally investigated, and the measured results show that higher International Standards Organization (ISO) levels and exposure times lead to a reduced transmit power level by 3 dB for every doubling of the exposure time and ISO at a bit error rate of 10-3 ...
March 1, 2018: Applied Optics
Than Singh Saini, Nguyen Phuoc Trung Hoa, Kenshiro Nagasaka, Xing Luo, Tong Hoang Tuan, Takenobu Suzuki, Yasutake Ohishi
A rib waveguide structure in As2 Se3 chalcogenide glass has been designed and numerically analyzed for on-chip coherent supercontinuum generation in the midinfrared region. The waveguide structure possesses an all-normal dispersion profile with dispersion value of -13.22  ps/nm·km at the pump wavelength. Coherent midinfrared supercontinuum spectrum spanning 1.2 to 7.2 μm has been obtained using a 2.5 mm long rib waveguide when pumped with 200 fs laser pulses of a peak power of 2.5 kW and a repetition rate of 1 kHz at 2...
March 1, 2018: Applied Optics
Wenwen He, Xiaodi Qiu, Shaohua Zhang, Yu Du, Yinglei Zhang, Yi Lu, Xiangjia Zhu
PURPOSE: To compare the long-term decentration and tilt in two multifocal intraocular lenses (MfIOLs) with an OPD-Scan III aberrometer. METHODS: Eighty cataract patients who underwent uneventful MfIOL implantation (42 with AcrySof® IQ ReSTOR® SN6AD1 and 38 with AMO Tecnis® ZMB00) were enrolled. At 1 year after surgery, a postoperative visual acuity evaluation included the measurement of uncorrected distance visual acuity, corrected distance visual acuity, distance-corrected near visual acuity, and distance-corrected intermediate visual acuity...
March 9, 2018: Eye
Lukas Streese, Arne Deiseroth, Juliane Schäfer, Arno Schmidt-Trucksäss, Henner Hanssen
Background: Age is a key determinant for the development of cardiovascular disease and higher age coincides with an increased prevalence of obesity and physical inactivity. The study examines the influence of physical activity on aging processes of physiological systems focusing on the mechanisms of vascular aging. Methods/Design: The study consists of two parts. The cross-sectional approach aims at examining the association of physical fitness and cardiovascular risk with large and small artery function in healthy older active (HOA, n = 40) and sedentary (HOS, n = 40) persons as well as older sedentary individuals with increased cardiovascular risk (OSR, n = 80) aged 50-80 years...
2018: Frontiers in Physiology
Long Hoang Nguyen, Bach Xuan Tran, Huong Lan Thi Nguyen, Huong Thi Le, Hoa Thi Do, Anh Kim Dang, Cuong Tat Nguyen, Carl A Latkin, Melvyn W B Zhang, Roger C M Ho
Calories and nutrition labeling on restaurant menus are powerful policy interventions to reduce the burden of obesity epidemic. However, the success of this policy requires an assurance of equal benefits among customers with different characteristics, especially people at a higher risk of poor health outcomes and eating habits. This study examined the sociodemographic disparities in the attitude and preference for calories and nutrition labeling on menus among customers in various food facilities. A cross-sectional study was conducted with 1746 customers of food facilities in Hanoi, Vietnam, who were recruited by using a multistage sampling method...
March 6, 2018: International Journal of Environmental Research and Public Health
Thai Hoa Tran, Marian H Harris, Jonathan V Nguyen, Traci M Blonquist, Kristen E Stevenson, Eileen Stonerock, Barbara L Asselin, Uma H Athale, Luis A Clavell, Peter D Cole, Kara M Kelly, Caroline Laverdiere, Jean-Marie Leclerc, Bruno Michon, Marshall A Schorin, Jennifer J G Welch, Shalini C Reshmi, Donna S Neuberg, Stephen E Sallan, Mignon L Loh, Lewis B Silverman
Recurrent chromosomal rearrangements carry prognostic significance in pediatric B-lineage acute lymphoblastic leukemia (B-ALL). Recent genome-wide analyses identified a high-risk B-ALL subtype characterized by a diverse spectrum of genetic alterations activating kinases and cytokine receptor genes. This subtype is associated with a poor prognosis when treated with conventional chemotherapy but has demonstrated sensitivity to the relevant tyrosine kinase inhibitors. We sought to determine the frequency of kinase-activating fusions among National Cancer Institute (NCI) high-risk, Ph-negative, B-ALL patients enrolled on Dana-Farber Cancer Institute ALL Consortium Protocol 05-001 and to describe their associated clinical characteristics and outcomes...
March 13, 2018: Blood Advances
Stefan Flohr, Isabelle Jasch, Antje Langer, Martin Riesenberg, Julia Hahn, Axel Wisotzki, Horst Kierdorf, Uwe Kierdorf, Joachim Wahl
Hypertrophic osteoarthropathy (HOA) is rarely diagnosed in archaeological human skeletons. Here, we report on the well-preserved skeleton of a middle-adult man from the early Medieval settlement site of Lauchheim (Germany) that exhibits pronounced multi-layered shell-like periosteal new bone formation in a bilaterally symmetric fashion on the long bones, the skeletal elements of the pelvis and those of the pectoral girdle. In addition, the two distal phalanges recovered show signs of osteoclastic resorption on their distal tuberosities...
March 2018: International Journal of Paleopathology
Kim Allison, Michelle Hall, Paul W Hodges, Tim V Wrigley, Bill Vicenzino, Yong-Hao Pua, Ben Metcalf, Alison Grimaldi, Kim L Bennell
BACKGROUND: Gluteal tendinopathy (GT) and hip osteoarthritis (OA) are the most common causes of hip pain and associated disability in older adults. Pain and altered walking biomechanics are common to both conditions. This study aimed to compare three-dimensional walking biomechanics between individuals with unilateral, symptomatic GT and HOA. METHODS: Sixty individuals with symptomatic unilateral GT confirmed by magnetic-resonance-imaging and 73 individuals with symptomatic unilateral HOA (Kellgren-Lawrence Grade ≥ 2) underwent three-dimensional gait analysis...
February 12, 2018: Gait & Posture
Ad Brouwers, Pieter G Dingjan, Ben Dujardin, Everardus J van Zoelen, Paul Lips, Louis J Gooren
It has been claimed that hyperestrogenism occurs in hypertrophic osteoarthropathy (HOA), but not in simple clubbing. However, one of our patients had simple clubbing and hyperestrogenism. We therefore measured estrogens, androgens, sex hormone-binding globulin (SHBG), and gonadotropins in five patients with HOA and in 18 patients with simple clubbing. Of the patients with HOA, 80% had a high urinary estriol concentration. In their serum, 80% had high estrone, 0% high estradiol, and 40% high SHBG. Of the patients with simple clubbing, 89% had a high urinary estriol concentration...
February 26, 2018: Clinical Rheumatology
Jinpei Yan, Liqi Chen, Qi Lin, Shuhui Zhao, Lei Li
Two different aerosol mass spectrometers, Aerodyne Aerosol Mass Spectrometer (AMS) and Single Particle Aerosol Mass Spectrometer (SPAMS) were deployed to identify the aerosol pollutants over Xiamen, representing the coastal urban area. Five obvious processes were classified during the whole observation period. Organics and sulfate were the dominant components in ambient aerosols over Xiamen. Most of the particles were in the size range of 0.2-1.0μm, accounting for over 97% of the total particles measured by both instruments...
February 2018: Journal of Environmental Sciences (China)
G B Marks, N V Nhung, T A Nguyen, N B Hoa, T H Khoa, N V Son, N T B Phuong, D M Tin, J Ho, G J Fox
SETTING: The study was conducted in a randomly selected sample of persons aged 15 years living in Ca Mau Province, southern Viet Nam. OBJECTIVE: To estimate the prevalence of latent tuberculous infection (LTBI) in the general adult population of this province of Viet Nam. The secondary objective was to examine age and sex differences in prevalence. DESIGN: A cross-sectional survey was conducted in a cluster-random sample of the population...
March 1, 2018: International Journal of Tuberculosis and Lung Disease
Tran Van Chien, Nguyen The Anh, Nguyen Tuan Thanh, Tran Thi Phuong Thao, Tran Van Loc, Tran Van Sung
Two new prenylisoflavones, 3',4',5-trihydroxy-8-prenyl-dihydrofuran[2″,3″:7,6]isoflavone (1) and 4',5-dihydroxy-8-prenyl-dihydrofuran[2″,3″:7,6]isoflavone (2), along with five known prenylisoflavones (3-7), benzylalcohol-4-O-β-d-glucoside (8) and two cinnamic acid esters (9, 10) were isolated from the leaves of Maclura cochinchinensis (Cudrania cochinchinensis). Their structures were elucidated by analysis of NMR (1 H-,13 C-NMR, HSQC, HMBC), MS spectra and comparison with the published data. Compounds 4-10 were the first time isolated from this species...
February 22, 2018: Natural Product Research
Irene Sanchez, Sara Ortiz-Toquero, Raul Martin
OBJECTIVE: The VX120 multidiagnostic unit is a multidiagnostic instrument that combines several functions: autorefraction, keratometry, corneal topography, aberrometry, pachymetry, and noncontact tonometry. The purpose of this study was to determine the intrasession repeatability and the intersession reproducibility of all parameters measured by the VX120 multidiagnostic unit in a sample of normal healthy eyes. METHODS: Three repeated measurements in the right eye of the volunteers were taken with VX120...
February 15, 2018: Eye & Contact Lens
Hoang Van Luong, Pham The Tai, Muneko Nishijo, Do Minh Trung, Pham Ngoc Thao, Pham Van Son, Nguyen Van Long, Nguyen Tung Linh, Hisao Nishijo
Dioxins are endocrine-disrupting chemicals, and their effects on reproductive functions are well-documented. The aim of the present study was to measure the levels of reproductive hormones in 42 men residing near a dioxin-contaminated area in Vietnam. We measured levels of 17 2,3,7,8-substituted congeners of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) and four non-ortho polychlorinated biphenyls (PCBs) in blood. Levels of follicle-stimulating hormone, luteinizing hormone, progesterone, prolactin, estradiol, and total testosterone were measured in serum...
February 13, 2018: Science of the Total Environment
Paulette Guitard, Lucie Brosseau, George A Wells, Nicole Paquet, Gail Paterson, Karine Toupin-April, Sabrina Cavallo, Sibel Z Aydin, Guillaume Léonard, Gino De Angelis
BACKGROUND: The prevalence of hand osteoarthritis (HOA) has been reported to be higher amongst women over 50 years old (66%) compared to men of the same age (34%). Although exercise therapy has been shown effective in reducing symptoms and disability associated with HOA, adherence to treatment programs remains low. The primary objective of this RCT is to examine the effectiveness of a 12-week knitting program for morning stiffness (primary outcome) and pain relief (secondary outcome) 2 h post-wakening in females (aged 50 to 85 years old) with mild to moderate hand osteoarthritis (HOA)...
February 14, 2018: BMC Musculoskeletal Disorders
Nguyen Thuy Chinh, Nguyen Thi Thu Trang, Tran Thi Mai, Dinh Thi Mai Thanh, Tran Huu Trung, Trinh Hoang Trung, Le Van Quan, Nguyen Thi Hoa, Can Van Mao, Nguyen Trong Nghia, Nguyen Thanh Hai, Tran Hong Anh, Tran Viet Hung, Jin-Ho Choy, Nguyen Van Loi, Baskaran Rajesh, Thai Hoang
This paper presents the results of zeta potential, water contact angle, atomic force microscopy image, in vitro solubility, and content of heavy metals in polylactic acid (PLA)/chitosan (CS) nanoparticles loading nifedipine. In addition, the In Vivo test of the PLA/CS nanoparticles loading nifedipine in the mice is also one of highlights of this work. The Zeta potential result shows that the charged surface of the PLA/CS nanoparticles loading nifedipine is neutral, negative or complex depending on nifedipine content...
April 1, 2018: Journal of Nanoscience and Nanotechnology
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