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Search Results: 1 - 10 of 3268 matches for " Nancy Huynh "
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Generation of polycyclic aromatic hydrocarbons (PAHs) during woodworking operations
Evin D. Bruschweiler,Cong Khanh Huynh,Pascal Wild,Philippe Boiteux,Nancy B. Hopf
Frontiers in Oncology , 2012, DOI: 10.3389/fonc.2012.00148
Abstract: Occupational exposures to wood dust have been associated with an elevated risk of sinonasal cancer (SNC). Wood dust is recognized as a human carcinogen but the specific cancer causative agent remains unknown. One possible explanation is a co-exposure to; wood dust and polycyclic aromatic hydrocarbons (PAHs). PAHs could be generated during incomplete combustion of wood due to heat created by use of power tools. To determine if PAHs are generated from wood during common wood working operations, PAH concentrations in wood dust samples collected in an experimental chamber operated under controlled conditions were analyzed. In addition, personal air samples from workers exposed to wood dust (n = 30) were collected. Wood dust was generated using three different power tools: vibrating sander, belt sander, and saw; and six wood materials: fir, Medium Density Fiberboard (MDF), beech, mahogany, oak and wood melamine. Monitoring of wood workers was carried out by means of personal sampler device during wood working operations. We measured 21 PAH concentrations in wood dust samples by capillary gas chromatography-ion trap mass spectrometry (GC-MS). Total PAH concentrations in wood dust varied greatly (0.24–7.95 ppm) with the lowest being in MDF dust and the highest in wood melamine dust. Personal PAH exposures were between 37.5–119.8 ng m?3 during wood working operations. Our results suggest that PAH exposures are present during woodworking operations and hence could play a role in the mechanism of cancer induction related to wood dust exposure.
Student-based Collaborative Network for Delivering Information of Natural Disasters and Climate Adaptation
Chien Huynh,Phuong Huynh
Computer Science , 2013,
Abstract: The student generation nowadays is considered as the Net Generation who grow up in the age of Internet and mobile technology and prefer bringing technological application into their life. The Learning Resource Center, an academic information center, takes the initiative in developing a collaborative network with the participation of students for delivering information of natural disasters and climate adaptation to the people who live in the vulnerable areas of Thua Thien Hue province. The network is aimed at helping local people mitigating vulnerabilities and adapting to the globally climate change for a better life.
On Minimizing the Standard Error of the Slope in Simple Linear Regression  [PDF]
Steven M. Crunk, Xinh Huynh
Open Journal of Statistics (OJS) , 2014, DOI: 10.4236/ojs.2014.43016
Abstract:

A common homework problem in texts covering calculus-based simple linear regression is to find a set of values of the independent variable which minimize the standard error of the estimated slope. All discussions the authors have heard regarding this problem, as well as all texts with which the authors of this paper are familiar and which include this problem, provide no solution, a partial solution, or an outline of a solution without theoretical proof and the provided solution is incorrect. Going back to first principles we provide the complete correct solution to this problem.

An Empirical Assessment of Public Policy Communications in Central Region of Vietnam  [PDF]
Huynh Quy, Thai Thanh Ha
Modern Economy (ME) , 2018, DOI: 10.4236/me.2018.912128
Abstract:
Communication is the object of policy, as witnessed in the efforts by government and non-government agencies to inform and educate various publics about problems in society. Effective public policy communications are an important tool to help achieve the policy’s objectives. It is imperative that transparency and proactive public policy communications continue to be the anchors of the current working agenda in most of developing countries’ government. The public policy communications in Central Region of Vietnam have been characterized by unpredictable patterns of policy adoption, the geographical distance, and the economic disparity as compared to the capital city of Hanoi. To fill in this academic gap, this paper identified the factors that consist of the public policy communication on the basis of literature review. The conceptual framework was developed and revised in order to lay the theoretical grounds. Based on this, questionnaire was developed for data collection in major locations in Central Vietnam. Multivariate data analysis techniques such as Exploratory Factor Analysis (EFA) and multiple regressions were used to gauge the impacts of possible factors on the public policy communication as perceived from citizen-level perspective in Central Vietnam. Recommendations and implications were drawn to strengthen public policy communication strategies in Central region of Vietnam.
Welcome to Systems — A New Interdisciplinary Open Access Journal for Systems Science and Engineering
Thomas Huynh
Systems , 2013, DOI: 10.3390/systems1010001
Abstract: Natural and human-made systems abound around us. Our solar system, the human body, the food chain, and ecosystems are some examples of natural systems. Some human-made systems are transportation systems, weapon systems, computer systems, software systems, satellite communications systems, ships, missile defense systems, health care systems, the internet, financial systems, and regional economies. Understanding of natural systems is essential to the survival of the human species, which is intertwined with the survival of other species on earth. Having the knowledge and ability to build human-made systems is critical to the employment of systems that effectively serve the needs of their users. To gain such understanding and to acquire such knowledge and ability, it is necessary that cutting-edge research in systems science, systems engineering, and systems-related fields continue. This open access journal aims to achieve quick and global dissemination of results of such research. [...]
Extremal Problems for Subset Divisors
Tony Huynh
Mathematics , 2013,
Abstract: Let $A$ be a set of $n$ positive integers. We say that a subset $B$ of $A$ is a divisor of $A$, if the sum of the elements in $B$ divides the sum of the elements in $A$. We are interested in the following extremal problem. For each $n$, what is the maximum number of divisors a set of $n$ positive integers can have? We determine this function exactly for all values of $n$. Moreover, for each $n$ we characterize all sets that achieve the maximum. We also prove results for the $k$-subset analogue of our problem. For this variant, we determine the function exactly in the special case that $n=2k$. We also characterize all sets that achieve this bound when $n=2k$.
Investors Perception Regarding Depository Services
Nancy
Golden Research Thoughts , 2013, DOI: 10.9780/22315063
Abstract: Depository is an organization which holds securities of investors in electronic form. The objectives ofdepository system are to reduce the time for transfer of securities, to avoid the risk of settlement of securities, toenhance liquidity and efficiency, to reduce cost of transaction for the investor, to create a system for the centralhandling of all securities, to promote the county's competitiveness by complying with global standards, to provideservice infrastructure in a capital market.In this article, Investigator gave brief overview about depository participants, eligibility criteria for DPsand the legal framework of Depository system in India. In research, investigator has used a structured questionnairefor eliciting the required responses relating to Depository Services from the general public. For the purpose ofsecondary data books, articles, reports, annual reports of the stock exchanges, news papers and internet has beenused.
MicroRNAs Profiling in Murine Models of Acute and Chronic Asthma: A Relationship with mRNAs Targets
Nancy Garbacki,Emmanuel Di Valentin,Van Anh Huynh-Thu,Pierre Geurts,Alexandre Irrthum,Céline Crahay,Thierry Arnould,Christophe Deroanne,Jacques Piette,Didier Cataldo,Alain Colige
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0016509
Abstract: miRNAs are now recognized as key regulator elements in gene expression. Although they have been associated with a number of human diseases, their implication in acute and chronic asthma and their association with lung remodelling have never been thoroughly investigated.
The NEI/NCBI dbGAP database: Genotypes and haplotypes that may specifically predispose to risk of neovascular age-related macular degeneration
Hong Zhang, Margaux A Morrison, Andy DeWan, Scott Adams, Michael Andreoli, Nancy Huynh, Maureen Regan, Alison Brown, Joan W Miller, Ivana K Kim, Josephine Hoh, Margaret M DeAngelis
BMC Medical Genetics , 2008, DOI: 10.1186/1471-2350-9-51
Abstract: Before release of individual data, p-value information was obtained directly from the AREDS dbGAP website. Of the 35 variants with P < 10-6 examined, 23 significantly modified risk of neovascular AMD. Many variants located in tandem on 1q32-q22 including those in CFH, CFHR4, CFHR2, CFHR5, F13B, ASPM and ZBTB were significantly associated with AMD risk. Of these variants, single SNP analysis revealed that CFH rs572515 was the most significantly associated with AMD risk (P < 10-6). Haplotype analysis supported our findings of single SNP association, demonstrating that the most significant haplotype, GATAGTTCTC, spanning CFH, CFHR4, and CFHR2 was associated with the greatest risk of developing neovascular AMD (P < 10-6). Other than variants on 1q32-q22, only two SNPs, rs9288410 (MAP2) on 2q34-q35 and rs2014307 (PLEKHA1/HTRA1) on 10q26 were significantly associated with AMD status (P = .03 and P < 10-6 respectively). After controlling for smoking history, gender and age, the most significant gene-gene interaction appears to be between rs10801575 (CFH) and rs2014307 (PLEKHA1/HTRA1) (P < 10-11). The best genotypic fit for rs10801575 and rs2014307 was an additive model based on LRT. After applying a Bonferonni correction, no other significant interactions were identified between any other SNPs.This is the first replication study on the NEI dbGAP SNPs, demonstrating that alleles on 1q, 2q and 10q may predispose an individual to AMD.Advanced age-related macular degeneration (AMD) is the most common cause of legal blindness in developed countries. Clinically two forms of advanced AMD are recognized: geographic atrophy and neovascular. Geographic atrophy is characterized by a slow progressive degeneration of the retinal pigment epithelium (RPE), resulting in the gradual loss of the photoreceptors. The neovascular form is characterized by the growth of new abnormal blood vessels from beneath the retina that can cause severe and rapid vision loss due to hemorrhage and exudation.
Predictors of Retention and Passing the National Council Licensure Examination for Registered Nurses  [PDF]
Nancy Elkins
Open Journal of Nursing (OJN) , 2015, DOI: 10.4236/ojn.2015.53026
Abstract: Using Seidman’s retention formula as a theoretical foundation, this study investigated historical data from a Bachelor of Science (BSN) nursing program to determine whether the admission variables of the preprogram grade point averages (GPA), American College Testing (ACT) scores, anatomy and physiology course grades, and/or the Health Education System Inc. (HESI) Exit Exam scores could predict completing the nursing program, as well as passing the NCLEX-RN. A significant relationship (p < 0.01) was identified between the preprogram GPA, ACT scores, anatomy grades, and the HESI Exit Exam scores with the completion of the BSN program and passing the NCLEX-RN.
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