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https://www.readbyqxmd.com/read/28224994/quantum-criticality-at-the-superconductor-insulator-transition-revealed-by-specific-heat-measurements
#1
S Poran, T Nguyen-Duc, A Auerbach, N Dupuis, A Frydman, Olivier Bourgeois
The superconductor-insulator transition (SIT) is considered an excellent example of a quantum phase transition that is driven by quantum fluctuations at zero temperature. The quantum critical point is characterized by a diverging correlation length and a vanishing energy scale. Low-energy fluctuations near quantum criticality may be experimentally detected by specific heat, cp, measurements. Here we use a unique highly sensitive experiment to measure cp of two-dimensional granular Pb films through the SIT. The specific heat shows the usual jump at the mean field superconducting transition temperature marking the onset of Cooper pairs formation...
February 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28221937/food-safety-perceptions-and-practices-among-smallholder-pork-value-chain-actors-in-hung-yen-province-vietnam
#2
Sinh Dang-Xuan, Hung Nguyen-Viet, Tongkorn Meeyam, Reinhard Fries, Huong Nguyen-Thanh, Phuc Pham-Duc, Steven Lam, Delia Grace, Fred Unger
Pork safety is an important public health concern in Vietnam and is a shared responsibility among many actors along the pork value chain. We examined the knowledge, perceptions, and practices regarding food safety, disease, and health risk among selected pork value chain actors (slaughterhouse owners and workers, people living around slaughterhouses, pork sellers, consumers, and veterinary and public health staff) in three districts in Hung Yen Province, Vietnam. We randomly selected 52 pork value chain actors to be surveyed through questionnaires, observation checklists, key informant interviews, and focus group discussions...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28218240/scaffolding-and-completing-genome-assemblies-in-real-time-with-nanopore-sequencing
#3
Minh Duc Cao, Son Hoang Nguyen, Devika Ganesamoorthy, Alysha G Elliott, Matthew A Cooper, Lachlan J M Coin
Third generation sequencing technologies provide the opportunity to improve genome assemblies by generating long reads spanning most repeat sequences. However, current analysis methods require substantial amounts of sequence data and computational resources to overcome the high error rates. Furthermore, they can only perform analysis after sequencing has completed, resulting in either over-sequencing, or in a low quality assembly due to under-sequencing. Here we present npScarf, which can scaffold and complete short read assemblies while the long read sequencing run is in progress...
February 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28214557/quadruple-first-line-drug-resistance-in-mycobacterium-tuberculosis-in-vietnam-what-can-we-learn-from-genes
#4
Huy Quang Nguyen, Nhung Viet Nguyen, Lucie Contamin, Thanh Hoa Thi Tran, Thuong Thi Vu, Hung Van Nguyen, Ngoc Lan Thi Nguyen, Son Thai Nguyen, Anh Duc Dang, Anne-Laure Bañuls, Van Anh Thi Nguyen
In Vietnam, a country with high tuberculosis (137/100.000 population) and multidrug-resistant (MDR)-TB burdens (7.8/100.000 population), little is known about the molecular signatures of drug resistance in general and more particularly of second line drug (SLD) resistance. This study is specifically focused on Mycobacterium tuberculosis isolates resistant to four first-line drugs (FLDs) that make TB much more difficult to treat. The aim is to determine the proportion of SLD resistance in these quadruple drug resistant isolates and the genetic determinants linked to drug resistance to better understand the genetic processes leading to quadruple and extremely drug resistance (XDR)...
February 15, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28213653/perceived-risk-of-avian-influenza-and-urbanization-in-northern-vietnam
#5
Melissa L Finucane, Nghiem Tuyen, Sumeet Saksena, James H Spencer, Jefferson M Fox, Nguyen Lam, Trinh Dinh Thau, Tran Duc Vien, Nancy Davis Lewis
Highly pathogenic avian influenza (HPAI) is an important public health concern because of potential for widespread morbidity and mortality in humans and poultry and associated devastating economic losses. We examined how perceptions of the risk of HPAI in poultry vary across communes/wards in the north of Vietnam at different levels of urbanization (rural, peri-urban, urban). Analyses of questionnaire responses from 1081 poultry raisers suggested that the perceived risk of HPAI in poultry was highest in peri-urban and rural settings...
February 17, 2017: EcoHealth
https://www.readbyqxmd.com/read/28211071/accurate-robust-and-reliable-calculations-of-poisson-boltzmann-binding-energies
#6
Duc D Nguyen, Bao Wang, Guo-Wei Wei
Poisson-Boltzmann (PB) model is one of the most popular implicit solvent models in biophysical modeling and computation. The ability of providing accurate and reliable PB estimation of electrostatic solvation free energy, ΔGel, and binding free energy, ΔΔGel, is important to computational biophysics and biochemistry. In this work, we investigate the grid dependence of our PB solver (MIBPB) with solvent excluded surfaces for estimating both electrostatic solvation free energies and electrostatic binding free energies...
February 16, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28208716/cell-imaging-counting-as-a-novel-ex-vivo-approach-for-investigating-drug-induced-hepatotoxicity-in-zebrafish-larvae
#7
Xuan-Bac Nguyen, Stanislav Kislyuk, Duc-Hung Pham, Angela Kecskés, Jan Maes, Deirdre Cabooter, Pieter Annaert, Peter De Witte, Annelii Ny
Drug-induced liver injury (DILI) is the most common reason for failures during the drug development process and for safety-related withdrawal of drugs from the pharmaceutical market. Therefore, having tools and techniques that can detect hepatotoxic properties in drug candidates at an early discovery stage is highly desirable. In this study, cell imaging counting was used to measure in a fast, straightforward, and unbiased way the effect of paracetamol and tetracycline, (compounds known to cause hepatotoxicity in humans) on the amount of DsRed-labeled hepatocytes recovered by protease digestion from Tg(fabp10a:DsRed) transgenic zebrafish...
February 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28199405/co-financing-for-viral-load-monitoring-during-the-course-of-antiretroviral-therapy-among-patients-with-hiv-aids-in-vietnam-a-contingent-valuation-survey
#8
Quyen Le Thi Nguyen, Long Hoang Nguyen, Bach Xuan Tran, Huong Thi Thu Phan, Huong Thi Le, Hinh Duc Nguyen, Tho Dinh Tran, Cuong Duy Do, Cuong Manh Nguyen, Vu Thi Minh Thuc, Carl Latkin, Melvyn W B Zhang, Roger C M Ho
BACKGROUND: Viral load testing is considered the gold standard for monitoring HIV treatment; however, given its high cost, some patients cannot afford viral load testing if this testing is not subsidized. Since foreign aid for HIV/AIDS in Vietnam is rapidly decreasing, we sought to assess willingness to pay (WTP) for viral load and CD4 cell count tests among HIV-positive patients, and identified factors that might inform future co-payment schemes. METHODS: A multi-site cross-sectional survey was conducted with 1133 HIV-positive patients on antiretroviral therapy (ART) in Hanoi and Nam Dinh...
2017: PloS One
https://www.readbyqxmd.com/read/28192199/viral-hemorrhagic-septicemia-virus-glycoprotein-production-in-tobacco
#9
Nguyen-Quang-Duc Tien, Tae-Jung Kim, Tae-Geum Kim
Viral hemorrhagic septicemia virus (VHSV) causes mortality in numerous marine and freshwater fish species resulting in heavy losses in fish farming. The glycoprotein gene of VHSV was fused with the cholera toxin B subunit (CTB) and expressed transiently in leaf tissues of Nicotiana benthamiana via the agroinfiltration method. The glycoprotein gene was divided into two parts to improve assembly of CTB fusion proteins (CTB-VHSV99-235 and CTB-VHSV258-417). Production of CTB fusion proteins was confirmed in the agroinfiltrated leaf tissue by western blot analysis...
February 9, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28187721/assessing-the-link-between-witnessing-inter-parental-violence-and-the-perpetration-of-intimate-partner-violence-in-bangladesh
#10
Md Jahirul Islam, Mosiur Rahman, Lisa Broidy, Syed Emdadul Haque, Yu Mon Saw, Nguyen Huu Chau Duc, Md Nurruzzaman Haque, Md Mostafizur Rahman, Md Rafiqul Islam, Md Golam Mostofa
BACKGROUND: We aimed to examine the influence of witnessing father-to-mother violence on: 1) perpetration of intimate partner violence (IPV); and 2) endorsement of attitudes justifying wife beating in Bangladesh. METHODS: This paper used data from the 2007 Bangladesh Demographic Health Survey. The analyses were based on the responses of 3374 ever-married men. Exposure to IPV was determined by men's self-reports of witnessing inter-parental violence in childhood...
February 10, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28181305/de-novo-dq-donor-specific-antibodies-are-associated-with-worse-outcomes-compared-to-non-dq-dndsa-following-heart-transplantation
#11
Robert Townsend Cole, Jonathan Gandhi, Robert A Bray, Howard M Gebel, Alanna Morris, Andrew McCue, Michael Yin, S Raja Laskar, Wendy Book, Maan Jokhadar, Andrew Smith, Duc Nguyen, J David Vega, Divya Gupta
BACKGROUND: Antibody mediated rejection (AMR) resulting from de novo donor-specific antibodies (dnDSA) leads to adverse outcomes following heart transplantation (HTx). It remains unclear what role dnDSA to specific HLA antigens play in adverse outcomes. This study compares outcomes in patients developing dnDSA to DQ antigens with those developing non-DQ dnDSA and those free from dnDSA. METHODS: Single-center, retrospective analysis of 122 consecutive HTx recipients...
February 9, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28177296/a-first-principles-model-for-anomalous-segregation-in-dilute-ternary-tungsten-rhenium-vacancy-alloys
#12
Jan Wrobel, Duc Nguyen-Manh, Sergei Dudarev, Krzysztof Kurzydłowski
The occurrence of segregation in dilute alloys under irradiation is a highly unusual phenomenon that has recently attracted attention, simulated by the interest in the fundamental properties of alloys as well as by applications. The fact that solute atoms segregate in alloys that, according to equilibrium thermodynamics, should exhibit full solubility, has significant practical implications, as the formation of precipitates strongly affects physical and mechanical properties. A lattice Hamiltonian model, generalizing so-called "ABV" Ising model and including collective many-body inter-atomic interactions, has been developed to treat rhenium solute atoms and vacancies in tungsten as components of a ternary alloy...
February 8, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28175445/165%C3%A2-what-is-the-effect-of-open-vs-percutaneous-screws-on-complications-among-patients-undergoing-lateral-interbody-fusion-for-adult-spinal-deformity
#13
Khoi Duc Than, Stacie Nguyen, Paul Park, Dean Chou, Frank La Marca, Juan S Uribe, Todd Douglas Vogel, Pierce D Nunley, Robert Eastlack, Neel Anand, Adam S Kanter, Praveen V Mummaneni, Gregory M Mundis
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28160044/clinical-characteristics-of-pediatric-hiv-1-patients-treated-with-first-line-antiretroviral-therapy-in-vietnam-a-nested-case-control-study
#14
Minh Diem Dang, Duc Minh Nguyen, Huu Bich Tran, Viet Hung Pham, Daryl Spak, Linh Chi Pham, Thi Quynh Phan, Thi Thanh Dinh, Thi Kim Anh Le, Van Lam Nguyen, Thanh Hai Le, Son Ngoc Hoang, Vu Phuong Linh Dang
OBJECTIVES: Over the past decades, Vietnam has made great strides in reducing the rate of mortality in HIV-related deaths, due to increased access of antiretroviral therapy (ART); however, given the significantly high level of treatment failure (TF), it is essential to identify markers that describe the failure of ART in HIV-1 infected children. METHODS: A nested case-control study was conducted with clinical data collected from 101 HIV-infected children [26 TF and 75 treatment success (TS)] at National Hospital of Pediatrics, Vietnam (2008-2012)...
February 3, 2017: International Journal of Public Health
https://www.readbyqxmd.com/read/28143462/a-study-on-the-influence-of-internet-addiction-and-online-interpersonal-influences-on-health-related-quality-of-life-in-young-vietnamese
#15
Bach Xuan Tran, Le Thi Huong, Nguyen Duc Hinh, Long Hoang Nguyen, Bao Nguyen Le, Vuong Minh Nong, Vu Thi Minh Thuc, Tran Dinh Tho, Carl Latkin, Melvyn Wb Zhang, Roger Cm Ho
BACKGROUND: Internet addiction (IA) is a common problem found in young Asians. This study aimed to study the influence of IA and online activities on health-related quality of life (HRQOL) in young Vietnamese. This study also compared the frequencies of anxiety, depression and other addiction of young Vietnamese with and without IA. METHODS: This study recruited 566 young Vietnamese (56.7% female, 43.3% male) ranging from 15 to 25 years of age via the respondent-driven sampling technique...
January 31, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28121124/novel-self-heated-gas-sensors-using-on-chip-networked-nanowires-with-ultralow-power-consumption
#16
Ha Minh Tan, Chu Manh Hung, Trinh Minh Ngoc, Hugo Nguyen, Nguyen Duc Hoa, Nguyen Van Duy, Nguyen Van Hieu
The length of single crystalline nanowires (NWs) offers a perfect pathway for electron transfer, while the small diameter of the NWs hampers thermal losses to tje environment, substrate, and metal electrodes. Therefore, Joule self-heating effect is nearly ideal for operating NW gas sensors at ultralow power consumption, without additional heaters. The realization of the self-heated NW sensors using the "pick and place" approach is complex, hardly reproducible, low yield, and not applicable for mass production...
February 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28120095/patient-barriers-to-accessing-surgical-cleft-care-in-vietnam-a-multi-site-cross-sectional-outcomes-study
#17
Jordan W Swanson, Caroline A Yao, Allyn Auslander, Heather Wipfli, Thi-Hai-Duc Nguyen, Kristin Hatcher, Richard Vanderburg, William P Magee
BACKGROUND: Most people who lack adequate access to surgical care reside in low- and lower-middle-income countries. Few studies have analyzed the barriers that determine the ability to access surgical treatment. We seek to determine which barriers prevent access to cleft care in a resource-limited country to potentially enable barrier mitigation and improve surgical program design. METHODS: A cross-sectional, multi-site study of families accessing care for cleft lip and palate deformities was performed in Vietnam...
January 24, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28111450/the-complete-mitochondrial-genome-sequence-of-the-indigenous-i-pig-sus-scrofa-in-vietnam
#18
Hieu Duc Nguyen, Tuan Anh Bui, Phuong Thanh Nguyen, Oanh Thi Phuong Kim, Thuy Thi Bich Vo
Objective: The I pig is a long nurtured longstanding breed in Vietnam, and contains excellent indigenous genetic resources. However, after 1970s, I pig breeds have become a small population because of decreasing farming areas and increasing pressure from foreign breeds with a high growth rate. Thus, there is now the risk of the disappearance of the I pigs breed. The aim of this study was to focus on classifying and identifying the I pig genetic origin and supplying molecular makers for conservation activities...
December 27, 2016: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28110128/application-of-a-breakthrough-biosorbent-for-removing-heavy-metals-from-synthetic-and-real-wastewaters-in-a-lab-scale-continuous-fixed-bed-column
#19
Atefeh Abdolali, Huu Hao Ngo, Wenshan Guo, John L Zhou, Jian Zhang, Shuang Liang, Soon W Chang, Dinh Duc Nguyen, Yi Liu
A continuous fixed-bed study was carried out utilising a breakthrough biosorbent, specifically multi-metal binding biosorbent (MMBB) for removing cadmium, copper, lead and zinc. The effect of operating conditions, i.e. influent flow rate, metal concentration and bed depth was investigated at pH 5.5±0.1 for a synthetic wastewater sample. Results confirmed that the total amount of metal adsorption declined with increasing influent flow rate and also rose when each metal concentration also increased. The maximum biosorption capacities of 38...
April 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28103726/antibacterial-activities-of-chemical-constituents-from-the-aerial-parts-of-hedyotis-pilulifera
#20
Hoai Thi Nguyen, Duc Viet Ho, Hung Quoc Vo, Anh Tuan Le, Hien Minh Nguyen, Takeshi Kodama, Takuya Ito, Hiroyuki Morita, Ain Raal
CONTEXT: Hedyotis pilulifera (Pit.) T.N. Ninh (Rubiaceae) has been used in Vietnamese ethnomedicine; the methanol extract exhibited antibacterial activity in our preliminary screening. OBJECTIVES: In this study, compounds from H. pilulifera were isolated and their antibacterial activity in vitro was evaluated. MATERIALS AND METHODS: The aerial parts of H. pilulifera (1.4 kg) were extracted with MeOH, suspended in water and ethyl acetate extract was chromatographed on a silica gel column...
December 2017: Pharmaceutical Biology
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