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Article ; Online: Pre-analytical specimen labelling and processing errors in the ICU

Long Nguyen / Sherissa Microys

University of Ottawa Journal of Medicine, Vol 11, Iss S

2022 Volume 5

Abstract: Introduction: Specimen rejections have been associated with increased in-hospital stay and cost. The majority of errors occur in the pre-analytic phase. Specimen rejection can lead to high rate of recollection, delay in result availability, and high rate ...

Abstract	Introduction: Specimen rejections have been associated with increased in-hospital stay and cost. The majority of errors occur in the pre-analytic phase. Specimen rejection can lead to high rate of recollection, delay in result availability, and high rate of test abandonment. These factors affect patient care and safety. Methods: This study conducted a retrospective review of Patient Safety Learning System (PSLS) reports for the intensive care unit (ICU) at The Ottawa Hospital General Campus (TOH) between 2010 and 2018, and a prospective review using interviews, surveys, and process mapping. Results: From 2098 PSLS reports, 52.6% were related to laboratory specimen collection and processing (pre-analytic phase). Specimen mislabelling with the wrong patient identifier accounted for 9.8% of pre-analytical error reports, while 16.4% of errors were due to non-sufficient quantity (NSQ) of specimen. 12.2 % of pre-analytical error reports involved cytology specimens. Conclusions: Pre-analytical errors are not only costly and resource draining, but may also place a burden on patients. Areas where errors were found include labels and requisitions stored in bedside cabinets, inconsistencies between specimen labels and requisitions, out-dated and difficult to access laboratory manuals, and non-sufficient quantity specimen collection. In the future we hope to start new initiatives to tackle these issues to improve patient safety and hospital efficiencies. This includes the development of a website for the laboratory manual, so that it is more easily accessible and user-friendly. With a new electronic medical record (EMR) system at TOH in 2019, we will explore the affects of pre-analytical processing of specimens.
Keywords	QI ; pre-analytical ; laboratory ; ICU ; labelling ; Medicine ; R ; Medicine (General) ; R5-920
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	University of Ottawa
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: STEP CATFormer

Long, Nguyen Huu Bao

Spatial-Temporal Effective Body-Part Cross Attention Transformer for Skeleton-based Action Recognition

2023

Abstract: Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. We think the key to skeleton-based action recognition is a skeleton hanging in frames, so we focus on how the Graph ... ...

Abstract	Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. We think the key to skeleton-based action recognition is a skeleton hanging in frames, so we focus on how the Graph Convolutional Convolution networks learn different topologies and effectively aggregate joint features in the global temporal and local temporal. In this work, we propose three Channel-wise Tolopogy Graph Convolution based on Channel-wise Topology Refinement Graph Convolution (CTR-GCN). Combining CTR-GCN with two joint cross-attention modules can capture the upper-lower body part and hand-foot relationship skeleton features. After that, to capture features of human skeletons changing in frames we design the Temporal Attention Transformers to extract skeletons effectively. The Temporal Attention Transformers can learn the temporal features of human skeleton sequences. Finally, we fuse the temporal features output scale with MLP and classification. We develop a powerful graph convolutional network named Spatial Temporal Effective Body-part Cross Attention Transformer which notably high-performance on the NTU RGB+D, NTU RGB+D 120 datasets. Our code and models are available at https://github.com/maclong01/STEP-CATFormer Comment: Accepted to BMVC 2023: Computer Vision for Games and Games for Computer Vision (CVG). 9 pages
Keywords	Computer Science - Computer Vision and Pattern Recognition ; Computer Science - Artificial Intelligence ; Computer Science - Machine Learning ; I.2.10
Subject code	004
Publishing date	2023-12-05
Publishing country	us
Document type	Book ; Online
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Article ; Online: Dynamics of Tractor Aggregated with Continuously Operating Planting Hole Digger

Beloev Hristo / Long Nguyen Duc / Nhu Dau The

Acta Technologica Agriculturae, Vol 26, Iss 2, Pp 72-

2023 Volume 78

Abstract: Digging holes for planting, which is a minimal tillage method, is beneficial in terms of reducing energy consumption and preventing erosion. Current popular hole diggers operate intermittently to give low productivity, and this problem can be solved by ... ...

Abstract	Digging holes for planting, which is a minimal tillage method, is beneficial in terms of reducing energy consumption and preventing erosion. Current popular hole diggers operate intermittently to give low productivity, and this problem can be solved by continuous hole digging machine with active tillage unit. On the basis of established principles, the kinematics of machine and its optimal parameters have been studied and determined. This paper presents the results of the study on dynamics of a tractor combined with a continuous excavator, as a basis for determining the combination’s working parameters, such as the speed of the unit and the number of rows. The experimental data on digger’s drag torque and the characteristics of Kubota B2530 tractor are the basis for simulating the working process at different speeds. The inequality of rotation speed and the moment of engine crankshaft is determined. Aggregates with single-row digger work stably in gears P1 to P6, while with double-row digger, stable operation is in gears P1 to P5. The productivity of a continuous operating digger is superior to that of an intermittent operating one. A continuous operating digger can reach 3500 pits·hour-1 with a double-row or 2400 pits·hour-1 with a single-row tractor aggregate.
Keywords	active tillage unit ; tractor aggregate ; dynamics ; soil ; continuous operation ; Agriculture (General) ; S1-972
Language	English
Publishing date	2023-06-01T00:00:00Z
Publisher	Sciendo
Document type	Article ; Online
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Article: Self-evaluation of Conflict Management Skills: A Cross-Sectional Study Among Vietnamese Nurses in 2021.

Long, Nguyen Hoang / Long, Ngo Xuan

Iranian journal of nursing and midwifery research

2022 Volume 27, Issue 5, Page(s) 461–465

Abstract: Background: Effective conflict management requires various skills. However, evidence suggests that nurses are unprepared to deal with conflicts at work. Accordingly, this study aimed to examine nurses' evaluations of their conflict management skills.: ...

Abstract	Background: Effective conflict management requires various skills. However, evidence suggests that nurses are unprepared to deal with conflicts at work. Accordingly, this study aimed to examine nurses' evaluations of their conflict management skills. Materials and methods: This cross-sectional descriptive study involved 202 nurses who were enrolled in short professional training courses at the Faculty of Nursing, Thai Nguyen University of Medicine and Pharmacy (TUMP). From March to June 2021, they completed self-administered questionnaires which included evaluations of ten common conflict management skills. The four-point rating scale ranged from very bad (0 points) to very good (3 points). Descriptive statistics, Mann-Whitney U, Kruskal-Wallis, and Spearman's rho tests were used for data analysis. Results: The nurses ranked their ability to identify their and others' emotions and feelings as the highest [mean (SD): 1.99 (0.42)]. Their ability to self-manage conflict-induced stress was rated as the lowest [1.86 (0.56)], with managing own feelings and emotions [1.88 (0.56)], and negotiation [1.90 (0.53)] rated as second and third lowest, respectively. There were no differences in skills between nurses based on gender (Mann-Whitney U = 2814.50, Conclusions: Conflict management skills varied and seemed suboptimal. Important areas that require proper attention include emotional intelligence and negotiations.
Language	English
Publishing date	2022-09-14
Publishing country	India
Document type	Journal Article
ZDB-ID	2609892-1
ISSN	2228-5504 ; 1735-9066
ISSN (online)	2228-5504
ISSN	1735-9066
DOI	10.4103/ijnmr.ijnmr_363_21
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Editorial: Reviews in metabolomics: Personalized and predictive medicine of infectious diseases.

Du Preez, Ilse / Long, Nguyen Phuoc

Frontiers in molecular biosciences

2023 Volume 10, Page(s) 1178115

Language	English
Publishing date	2023-03-20
Publishing country	Switzerland
Document type	Editorial
ZDB-ID	2814330-9
ISSN	2296-889X
ISSN	2296-889X
DOI	10.3389/fmolb.2023.1178115
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Article ; Online: Caenorhabditis elegans: a model organism in the toxicity assessment of environmental pollutants.

Long, Nguyen Phuoc / Kang, Jong Seong / Kim, Hyung Min

Environmental science and pollution research international

2023 Volume 30, Issue 14, Page(s) 39273–39287

Abstract: The unfavorable effects of environmental pollutants are becoming increasingly evident. In recent years, Caenorhabditis elegans (C. elegans) has been used as a powerful terrestrial model organism for environmental toxicity studies owing to its various ... ...

Abstract	The unfavorable effects of environmental pollutants are becoming increasingly evident. In recent years, Caenorhabditis elegans (C. elegans) has been used as a powerful terrestrial model organism for environmental toxicity studies owing to its various advantages, including ease of culture, short lifespan, small size, transparent body, and well-characterized genome. In vivo bioassays and field studies can analyze and evaluate various toxic effects of the toxicants on the model organism, while emerging technologies allow profound insights into molecular disturbances underlying the observed phenotypes. In this review, we discuss the applications of C. elegans as a model organism in environmental toxicity studies and delineate apical assays such as lifespan, growth rate, reproduction, and locomotion, which are widely used in toxicity evaluation. In addition to phenotype assays, a comprehensive understanding of the toxic mode of action and mechanism can be achieved through a highly sensitive multi-omics approach, including the expression levels of genes and endogenous metabolites. Recent studies on environmental toxicity using these approaches have been summarized. This review highlights the practicality and advantages of C. elegans in evaluating the toxicity of environmental pollutants and presents the findings of recent toxicity studies performed using this model organism. Finally, we propose crucial technical considerations to escalate the appropriate use of C. elegans in examining the toxic effects of environmental pollutants.
MeSH term(s)	Animals ; Caenorhabditis elegans/genetics ; Environmental Pollutants/metabolism ; Reproduction ; Longevity
Chemical Substances	Environmental Pollutants
Language	English
Publishing date	2023-02-06
Publishing country	Germany
Document type	Journal Article ; Review
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-023-25675-5
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Article ; Online: How green intrinsic and extrinsic motivations interact, balance and imbalance with each other to trigger green purchase intention and behavior

Cong Doanh Duong / Thanh Hieu Nguyen / Hoai Long Nguyen

Heliyon, Vol 9, Iss 10, Pp e20886- (2023)

A polynomial regression with response surface analysis

2023

Abstract: This research aims to examine how green extrinsic and intrinsic motivations individually and jointly affect green purchase intention and actual behavior, drawing on the integration of self-determination theory and the theory of planned behavior. Based ... ...

Abstract	This research aims to examine how green extrinsic and intrinsic motivations individually and jointly affect green purchase intention and actual behavior, drawing on the integration of self-determination theory and the theory of planned behavior. Based upon a sample of 4062 consumers in Vietnam, we methodologically adopted a polynomial regression with response surface analysis to shed the light on how a higher degree of eco-friendly consumption intention and behavior is synthesized from the balance between high green extrinsic and intrinsic motivations. Conversely, a large imbalance between green extrinsic and intrinsic motivations will lower the level of environmentally friendly consumption. Additionally, this study indicates that green purchase intention is the most important predictor of green purchase behavior, and that green purchase intention significantly mediates the insolated and joint effects of green extrinsic and intrinsic motivations on eco-friendly consumption behavior.
Keywords	Green purchase intention ; Green purchase behavior ; Green extrinsic motivation ; Green intrinsic motivation ; Polynomial regression ; response surface analysis ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Subject code	300
Language	English
Publishing date	2023-10-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A novel Bayesian approach for disentangling solar and geomagnetic field influences on the radionuclide production rates

Long Nguyen / Neil Suttie / Andreas Nilsson / Raimund Muscheler

Earth, Planets and Space, Vol 74, Iss 1, Pp 1-

2022 Volume 19

Abstract: Abstract Cosmogenic radionuclide records (e.g., 10Be and 14C) contain information on past geomagnetic dipole moment and solar activity changes. Disentangling these signals is challenging, but can be achieved by using independent reconstructions of the ... ...

Abstract	Abstract Cosmogenic radionuclide records (e.g., 10Be and 14C) contain information on past geomagnetic dipole moment and solar activity changes. Disentangling these signals is challenging, but can be achieved by using independent reconstructions of the geomagnetic dipole moment. Consequently, solar activity reconstructions are directly influenced by the dipole moment uncertainties. Alternatively, the known differences in the rates of change of these two processes can be utilized to separate the signals in the radionuclide data. Previously, frequency filters have been used to separate the effects of the two processes based on the assumption that millennial-scale variations in the radionuclide records are dominated by geomagnetic dipole moment variations, while decadal-to-centennial variations can be attributed to solar activity variations. However, the influences of the two processes likely overlap on centennial timescales and possibly millennial timescales as well, making a simple frequency cut problematic. Here, we present a new Bayesian model that utilizes the knowledge of solar and geomagnetic field variability to reconstruct both solar activity and geomagnetic dipole moment from the radionuclide data at the same time. This method allows for the possibility that solar activity and geomagnetic dipole moment exhibit variations on overlapping timescales. The model was tested and evaluated using synthetic data with realistic noise and then used to reconstruct solar activity and the geomagnetic dipole moment from the 14C production record over the last two millennia. The results agree with reconstructions based on independent geomagnetic field models and with solar activity inferred from the Group Sunspot number. Our Bayesian model also has the potential to be developed further by including additional confounding factors, such as climate influences on the radionuclide records. Graphical Abstract
Keywords	Solar activity ; Paleomagnetism ; Cosmogenic radionuclide ; Holocene ; 14C ; Geography. Anthropology. Recreation ; G ; Geodesy ; QB275-343 ; Geology ; QE1-996.5
Subject code	550
Language	English
Publishing date	2022-08-01T00:00:00Z
Publisher	SpringerOpen
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The Adaptation of the Buddhist Death Acceptance Scale for Vietnamese Persons with Cancer.

Long, Nguyen H / Thanasilp, Sureeporn

Asian nursing research

2021 Volume 15, Issue 2, Page(s) 144–149

Abstract: Purpose: This study reports on selected psychometric properties of the adapted Buddhist Death Acceptance Scale (BDAS) for Vietnamese persons with cancer.: Methods: The original 13-item BDAS was developed based on Buddhist perspectives toward death ... ...

Abstract	Purpose: This study reports on selected psychometric properties of the adapted Buddhist Death Acceptance Scale (BDAS) for Vietnamese persons with cancer. Methods: The original 13-item BDAS was developed based on Buddhist perspectives toward death and life and was translated from Thai into Vietnamese. Item content checking with five Vietnamese local experts suggested three items of the original BDAS were irrelevant in Vietnamese culture and hence should be excluded. Psychometric properties of the 10-item BDAS Vietnamese version were tested using a convenience sample of 193 Vietnamese Buddhists with cancer. Results: The internal consistency coefficient of the scale was found to be 0.73. Exploratory factor analysis showed that the 10 items of the BDAS Vietnamese version constituted 2 factors, explaining 51.1% of the variance of death acceptance. The first factor was "acceptance of natural process of death" and the second was "preparing for death." Both factors reflected explicitly Buddhist viewpoints toward death acceptance and were consistent with the original Thai BDAS. However, although similar factors were found, some items in the Vietnamese BDAS did not load to same factors as in the Thai BDAS. Conclusions: The BDAS Vietnamese version provides an initial suitable measurement for death acceptance among Vietnamese Buddhists. Its availability will enable cross-cultural research to investigate death acceptance among Buddhist patients with cancer in Vietnam. However, the differences in item loadings between the Thai and Vietnamese scales suggest that further conceptual and empirical works to refine the measurement are needed.
MeSH term(s)	Asian Continental Ancestry Group ; Factor Analysis, Statistical ; Humans ; Neoplasms ; Psychometrics ; Reproducibility of Results
Language	English
Publishing date	2021-02-10
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2481635-8
ISSN	2093-7482 ; 2093-7482
ISSN (online)	2093-7482
ISSN	2093-7482
DOI	10.1016/j.anr.2021.02.002
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Article ; Online: Distinct metabolic alterations in different Caenorhabditis elegans mitochondrial mutants.

Long, Nguyen Phuoc / Kim, Hyung Min

Journal of chromatography. B, Analytical technologies in the biomedical and life sciences

2021 Volume 1179, Page(s) 122863

Abstract: Mitochondria play an essential role in various biochemical processes that maintain cellular homeostasis. Minor defects in the mitochondrial genome can lead to aversive behavioral responses in an organism. Nevertheless, little is known about the impact of ...

Abstract	Mitochondria play an essential role in various biochemical processes that maintain cellular homeostasis. Minor defects in the mitochondrial genome can lead to aversive behavioral responses in an organism. Nevertheless, little is known about the impact of mitochondrial mutations on the metabolome of Caenorhabditis elegans (C. elegans). In this study, an untargeted metabolomics approach was employed to elucidate the metabolic aberrant caused by mitochondrial DNA mutations in C. elegans. Specifically, three mutant strains of C. elegans, including clk-1, mev-1, and phb-2, were adopted to study corresponding metabolic signatures. Adult worms were collected, and metabolites were extracted and analyzed by gas chromatography-mass spectrometry. Uni- and multivariate analyses were performed to elucidate perturbed metabolism between wildtype worms and mutant strains, and metabolic differences among the mutants. The tricarboxylic acid cycle intermediates, amino acids, and sugars were significantly affected in the mitochondrial mutants. Overall, each mitochondrial DNA mutation exhibited a different pattern of metabolic alterations. The shift of metabolome appeared to be associated with the lifespan of C. elegans. In particular, clk-1 and mev-1 strains, which had the opposite phenotypes of lifespan, had apparently different metabolomes. Our findings set light on the metabolic consequences of mitochondrial genetic variants, which may help better understand mitochondrial disease mechanisms.
MeSH term(s)	Animals ; Biomarkers/metabolism ; Caenorhabditis elegans/genetics ; Caenorhabditis elegans/metabolism ; Caenorhabditis elegans Proteins/genetics ; Caenorhabditis elegans Proteins/metabolism ; DNA, Mitochondrial/genetics ; DNA, Mitochondrial/metabolism ; Gas Chromatography-Mass Spectrometry ; Metabolome/genetics ; Mitochondria/genetics ; Mitochondria/metabolism ; Mutation/genetics
Chemical Substances	Biomarkers ; Caenorhabditis elegans Proteins ; DNA, Mitochondrial
Language	English
Publishing date	2021-07-20
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1180823-8
ISSN	1873-376X ; 0378-4347 ; 1570-0232 ; 1387-2273
ISSN (online)	1873-376X
ISSN	0378-4347 ; 1570-0232 ; 1387-2273
DOI	10.1016/j.jchromb.2021.122863
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