Papers by Hanh Nguyen Thi
European Respiratory Journal, Sep 1, 2014
Introduction: COPD is serious public health problem in over the world. In Vietnam, the prevalence... more Introduction: COPD is serious public health problem in over the world. In Vietnam, the prevalence of COPD is 4.2% of the general population. Since December 2010, program for COPD and asthma management is incorporated in the national program against non-communicable diseases. Objectives: To determine the knowledge, attitude and practices (KAP) regarding to diagnosis and management of COPD among doctors in hospitals of 10 cities and provinces in the Northern Vietnam. Methods: A standardized questionnaire was completed by 461 doctors to assess their KAP in diagnostic and management of COPD before their participation in training course from June to December 2012. Results: Among 461 respondents, there were 66.8% doctors who work in the province/city hospitals and 33.2% doctors in the district hospitals. Majority of doctors did not fully understand the risk factors of the disease; the most important risk factor for COPD were cigarette smoke (89.8% of the doctor), followed by biomass smoke and dust (51.5%), respiratory infections (38.5%), gene factor (16.3%), abnormalites in lung (9.1%), socio – economic factors (5.0%). Only 43.9% of doctors were able to list the 4 criteria to diagnose COPD and only 23.5% of doctors had the correct answer for the staging of COPD according GOLD 2011. Results showed that only 14.3 % of doctors guided patients to use the drug delivery devices in the prescription. Conclusion: Our results revealed that, there is lack of awareness and urgent need of education on diagnosis and management of COPD for Vietnamese doctors.
Journal of Membrane Science, 2011
The present study deals with the specific energetic consumption evaluation of dead-end and tangen... more The present study deals with the specific energetic consumption evaluation of dead-end and tangential ultrafiltration (UF) (100 kDa) of salted suspensions on polysulfone membrane in regards of backwash and aeration conditions. For TMP ranging from 0.2 to 0.8 bar, it was found that specific energy consumption during tangential UF was always higher than in dead-end mode. During dead-end UF at 0.4 bar with a backwash frequency equal to 15 min, the 30 s backwash duration allowed obtaining the highest net permeate flux (27 L h −1 m −2) and the lowest specific energy consumption (146 Wh m −3). Changing the backwash frequency to respectively 5 or 60 min did not induce lower energy consumption. The bubbling located at the bottom of fiber bundle accounted for more than 68% of the total specific energy consumption and enhanced the net permeate flux only in the presence of backwash. During the UF at 0.4 bar with 30 s and 15 min of backwash time and frequency respectively, the total energy consumption appeared lower (35 Wh m −3) without bubbling. Finally, the lowest specific energy consumption (16 Wh m −3) was obtained for dead-end UF at 0.4 bar without backwashing or bubbling; in these operating conditions, stabilized net permeate flux was equal to 16 L h −1 m −2 .
International Journal of Product Development, 2014
Product development was deeply modified by globalisation. New practises to ease remote collaborat... more Product development was deeply modified by globalisation. New practises to ease remote collaborative work are expected. Many methods and tools were developed for this objective in a fragmented vision depending on the usage contexts. The Computer-Supported Cooperative Work (CSCW) community defined tools dedicated to generic collaboration without specialisation about a specific business, but each of these tools is mainly dedicated either to synchronous or asynchronous collaboration. Under this classification, whiteboards are dedicated to synchronous remote work around unstructured sketches. On the other point of view, the design community developed new shared models for structured information about the product. This paper proposes the integration of both in order to create whiteboards dedicated to technical business activities. This is obtained by enabling a collaborative manipulation of product model representations within a shared whiteboard environment.
Environmental Technology, 2013
The accuracy of the Content should not be relied upon and should be independently verified with p... more The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Taylor and Francis shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content. This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden.
BMC Public Health, 2012
Background: A project was implemented in 2010 to improve TB notification and TB screening and dia... more Background: A project was implemented in 2010 to improve TB notification and TB screening and diagnostic routines in large general hospitals. The aims of present study was to assess baseline TB screening and diagnostic practices in the three largest general hospitals in Vietnam. Objectives: To assess baseline TB screening and diagnostic practices in the three largest general hospitals in Vietnam. Method: The study had three elements: 1) Focus group discussions with hospital physicians; 2) review of hospital records and structured interviews of people who had a chest X-ray on any indication; and 3) record reviews and structured interviews of people newly diagnosed with TB. Results: The most commonly reported diagnostic pathway for pulmonary TB was chest X-ray followed by sputum-smear microscopy. Among 599 individuals who had a chest X-ray performed, 391 (65.1%) had recorded any abnormality, significantly higher in males (73.8%) than in females (54.7%), (p < 0.001), and the proportion was increasing with age (p <0.001). Among those with abnormal chest X-ray, 245 (69.2%) were investigated with sputum smear microscopy, and 49 (20%) were diagnosed with TB, of which 33 (13.5%) were smear-positive. Of 103 consecutive TB cases enrolled in the study, 92 (90%) had chest X-ray as the initial test. Sixty-three (61.2%) fulfilled the TB suspect criteria based on respiratory symptoms (productive cough >2 weeks). Conclusion: Chest X-ray is the preferred first test for TB in the largest hospitals in Vietnam. Chest X-ray is a sensitive screening tool for TB, which should be followed by a confirmatory TB test. While the majority of those with chest X-ray abnormalities are investigated with smear-microscopy, the high sputum-smear positivity ratio among them suggests that sputum-smear microscopy is done mainly for persons with quite clear TB signs or symptoms. TB screening and use of confirmatory diagnostic tests on wider indications seem warranted.
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Papers by Hanh Nguyen Thi