Career Ambition and Employee Performance Behaviour: The Presence of Ideological Development

This study develops and tests a theoretical model that investigates how career ambition can have an impact on different types of academics' performance behaviour, and how ideological development at work can affect this model in a special context of a communist country. In a study of 991 employees in a large university in Vietnam, the model is largely supported. The findings suggest that in-role behaviour has a significant mediating role in the effect of career ambition on extra-role behaviour and that this mediating effect is stronger among the group of employees who have participated in advanced ideological development in the context of Vietnamese higher education. This study advances the understanding of an underdeveloped relationship between career ambition and employee performance behaviour, and expands the knowledge of the impact of ideological development at work

An Extended Occlusion Detection Approach for Video Processing

Occlusions become conspicuous as failure regions in video processing when unified over time because the contraventions of the restriction of brightness have accumulated and evolved in occluded regions. The accuracy at the boundaries of the moving objects is one of the challenging areas that required further exploration and research. This paper presents the work in process approach that can detect occlusion regions by using pixel-wise coherence, segment-wise confidence and interpolation technique. Our method can get the same result as usual methods by solving only one Partial Differential Equations (PDE) problem; it is superior to existing methods because it is faster and provides better coverage rates for occlusion regions than variation techniques when tested against a varied number of benchmark datasets. With these improved results, we can apply and extend our approach to a wider range of applications in computer vision, such as background subtraction, tracking, 3D reconstruction, video surveillance, video compression

Exploiting Context-Aware Event Data for Fault Analysis

Fault analysis in communication networks and distributed systems is a difficult process that heavily depends on system administrator’s experience and supporting tools. This process usually requires analytic techniques and several types of event data including log events, debug messages, trace obtained from these systems to investigate the root cause of faults. This paper introduces an approach of exploiting context-aware data and classification technique for improving this process. This approach uses both event data and context-aware data including CPU load, memory, processes, temperature, status to train a decision tree, and then applies the tree to assess suspected events. We have implemented and experimented the approach on the OpenStack cloud computing system with the Hadoop computing service and MELA event collection system. The experimental results reveal that the accuracy score of the approach reaches 85% on average. The paper also includes detailed analysis for the results

Economic, social and environmental disclosure, a theoretical framework and its application in Vietnam

This study focuses on the appraisal of firms performance and on its representation and reporting. Using interviews and inquiries in firms operating in the cement industry in Vietnam, two points are investigated. First, whether firms top executives consider that firms sustainable performance may include economic, social or environmental performance that is not integrated in financial statements. The theoretical framework is the stakeholder theory complemented with the institutional theory. Second, whether economic, social and environmental performance should be disclosed to answer the expectations of the various stakeholders. Therefore, our research contributes to corporate governance studies by focusing on reporting dedicated to all the stakeholders

University’s shared vision for research and teaching: an international comparative study

How do universities encourage academics to buy into a shared vision while often setting punitive targets in teaching and research? This article explores possible antecedents of a university’s shared vision and its relationships with academics’ research and teaching performance in the era of managerialism. This cross-country study of two large universities in the UK and Vietnam draws on data from multiple sources to uncover the key components of a university’s shared vision. A survey strategy was adopted. Data were collected from different sources, using a stratified random sampling technique from academics of different schools at those universities. A total of 431 survey responses from academics at these universities were included for analysis, employing structure equation modelling. It provides fresh insights into whether having a shared vision can benefit academics’ research and teaching performance. The findings of this study show that while achieving a high degree of shared vision may enhance research performance, it may do little to improve teaching performance. The study provides empirical evidence indicating that a shared vision emerges as strongly rooted within individual employees rather than managers, challenging the common belief that a shared vision emanates primarily from the top down. This article advances social exchange theory (SET) by showing the interdependence of workplace antecedents, personal attributes, interpersonal connections, and performance. It introduces a framework for the relationship between universities’ shared vision with its possible antecedents and with academics’ teaching performance and research performance. The article also discusses useful implications for higher education leaders, based on the findings of the study

Poliface: A Multi-pose Synchronous Imaging System

To enhance the accuracy of face recognition technology in real-world scenarios, it is necessary to train deep learning models on datasets that contain a large number of labeled human face images under multiple poses, lighting, and accessory variations. In this paper, we introduce a novel acquisition system named the Poliface. This system can capture multiple high-resolution images simultaneously around the human head. We designed this system with a well-built aluminum structure, control electronic circuits, and high-performing in-house software. The results demonstrate the precise operation and exceptional stability of this system. Using this Poliface system, we have collected over 6 million photos, which can be used to train and evaluate facial recognition models, and exploited for three-dimensional (3D) virtual face reconstruction

Variations in the Role of Social Support on Disclosure Among Newly Diagnosed HIV-Infected People Who Inject Drugs in Vietnam

Stigma and perceived social support can influence the decision to disclose HIV positive status, especially for people who inject drugs (PWID). In this analysis, the association between social support and HIV disclosure among 336 newly diagnosed HIV-infected PWID in Northern Vietnam was assessed. One month after diagnosis, 34.8% of participants had not disclosed to anyone. Disclosure to anyone and to a family member specifically, was associated with baseline social support in the form of positive interactions and a history of incarceration. Disclosing to a family member was less likely among those who had unprotected sex in the previous 3 months. Disclosure to an injecting partner was more likely among those with a history of being in a drug treatment program, knowing someone on ART and believing that ART is safe. These data suggest that social support may facilitate disclosure among family members, including spouses, while disclosure to injecting partners is greater when PWID know that ART is a safe and viable option

The Effect of a Multi-Level Intervention on the Initiation of Antiretroviral Therapy (ART) among HIV-Infected Men Who Inject Drugs and Were Diagnosed Late in Thai Nguyen, Vietnam

In Vietnam, an estimated 256,000 people are living with HIV, and 58% of HIV-infections reported are among people who inject drugs (PWID). While antiretroviral therapy (ART) is widely available in Vietnam, marginalized hard-to-reach male PWID, demonstrate significantly reduced and delayed access to ART

Unexpected cases in field diagnosis of African swine fever virus in Vietnam: The needs consideration when performing molecular diagnostic tests

Background: The first confirmed case of African swine fever (ASF) in Vietnam was reported officially in February 2019. To date, ASF virus (ASFV) have been detected in 63/63 provinces in Vietnam. Currently, real-time polymerase chain reaction (PCR) is considered to be a powerful tool for viral detection in field samples, including ASFV. However, some recent reports have suggested that mismatches in primer and probe binding regions may directly affect real-time PCR qualification, leading a false-negative result.Aim: This study aims to further examine a conflicting result obtained from two OIE recommended methods, conventional PCR and real-time PCR, for ASFV detection.Methods: Two ASF suspected pigs from different provinces in the north of Vietnam were selected for this study based on clinical signs and postmortem lesions. The different results obtained by OIE-recommended conventional PCR and real-time PCR were further analyzed by the Sanger sequencing method and virus isolation in combination with hemadsorption (HAD) test using porcine alveolar macrophages cells.Results: The results showed that when the primer sequence matched perfectly with the sequences of field isolates, a mutation in probe binding region was found, indicating that a single mismatch in the probe binding site may cause a false-negative result by real-time PCR in detecting ASFV in clinical samples in Vietnam. An agreement between conventional PCR, using PPA1/PPA2 primers and two golden standard methods, virus isolation in combination with HAD assay, and sequencing method was observed in this study.Conclusion: A single mismatch in the probe binding site caused a failse-negative result by realtime PCR method in field diagnosis of ASFV. The needs consideration when selecting the appropriate molecular diagnostic methods is based on the current databases of ASFV sequences,  particularly for epidemiological surveillance of ASF. Keywords: African swine fever, PCR, Pigs, Real-time PCR, Vietna