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Fulltext A Survey on Handover and Mobility Management in 5G HetNets: Current State, Challenges, and Future Directions

Ullah Y, Roslee MB, Mitani SM, Khan SA, Jusoh MH

Sensors (Basel), 2023 May 25;23(11).
PMID: 37299808 DOI: 10.3390/s23115081

Fifth-generation (5G) networks offer high-speed data transmission with low latency, increased base station volume, improved quality of service (QoS), and massive multiple-input-multiple-output (M-MIMO) channels compared to 4G long-term evolution (LTE) networks. However, the COVID-19 pandemic has disrupted the achievement of mobility and handover (HO) in 5G networks due to significant changes in intelligent devices and high-definition (HD) multimedia applications. Consequently, the current cellular network faces challenges in propagating high-capacity data with improved speed, QoS, latency, and efficient HO and mobility management. This comprehensive survey paper specifically focuses on HO and mobility management issues within 5G heterogeneous networks (HetNets). The paper thoroughly examines the existing literature and investigates key performance indicators (KPIs) and solutions for HO and mobility-related challenges while considering applied standards. Additionally, it evaluates the performance of current models in addressing HO and mobility management issues, taking into account factors such as energy efficiency, reliability, latency, and scalability. Finally, this paper identifies significant challenges associated with HO and mobility management in existing research models and provides detailed evaluations of their solutions along with recommendations for future research.

Matched MeSH terms: Multimedia
Fulltext A brief review on multimedia-based health education applications: current trend and future potential

Lua Pei Lin, Nor Khaira Wahida Khairuzzaman

Education in Medicine Journal, 2014;6(4):0-0.
MyJurnal

Objective: This paper intended to review and analyse relevant published articles which have studied or applied multimedia as the educational medium for patients or their caregivers. The benefits were also recorded.

Method: The search was performed across the databases EBSCO Host, Springer Link, Science Direct and PubMed for relevant studies. Only full-text articles using English as a language of publication were included. Eligible articles included any usage of multimedia intervention as health information delivery for patients or caregivers. No restriction for publication date was set to permit a wider capture.

Result: Twenty articles met the inclusion criteria involving a total of 1,797 respondents. The studies have been conducted in various countries mostly in North American region followed by Europe. The focused disease for each study varied from asthma to cognitive impairment but most were on cancer. Problems in caregiving and depression were also reported. The overall data suggested that the multimedia-based education had generated modest improvement in self-efficacy, patient satisfaction, coping skills, and perceptions of social support. Cost benefits were also recorded. Additionally, patients’ behavioural changes were well maintained in parallel with the intervention programme.

Conclusion: The evolution of multimedia as an educational medium is growing and its incorporation has benefited health education management especially in improving patients’ and their family’s psychosocial outcomes. However, due to still limited scientific evidence to support its value, further multimedia-based interventions should be developed out of the need to share information and knowledge among patients as well as caregivers.

Matched MeSH terms: Multimedia
A low-cost, high-quality method for remote recording of presentations

Tan LK, Wong JH, Ng KH

AJR Am J Roentgenol, 2006 Mar;186(3):898-901.
PMID: 16498128

The purpose of this article was to develop a low-cost method for high-quality remote capturing and recording of multimedia presentations.

Matched MeSH terms: Multimedia
Fulltext A systematic literature review on technology-enhanced learning in medical education

May Honey Ohn

Borneo Journal of Medical Sciences, 2020;14(1):3-17.
MyJurnal

This systematic review was aimed to evaluate the effectiveness of technology-enhanced learning (TEL) used in medical teaching for undergraduate medical students. The objectives are to (a) identify various teaching modalities which are used to enhance TEL; (b) evaluate whether TEL is more effective than traditional learning (TL) in cognitive and affective learning domain outcome. The empirical studies were searched in the following databases: Google Scholar, MEDLINE, ERIC, ProQuest, Cochrane Library and Scopus. All papers published from 2008 to 2018 were included. From eligible studies, the study design, study field, study population, intervention methods, type of assessment and learning achievement were abstracted and summarized the information. The search results were independently reviewed by two authors. From a pool of 1384 articles, 43 eligible articles were identified, enrolling 7292 undergraduate medical students examining comparative study between TEL and traditional learning. The results showed that there was a high degree of heterogeneity seen amongst the included studies in terms of TEL modalities used. The majority of intervention studies favoured online resources, while the rest used various offline multimedia electronic devices, virtual simulations and blended modes. Overall findings showed promising data that TEL is better than TL with regards to knowledge gain and skill acquisition, as well as providing higher student satisfaction. In all, the findings present blended learning in a positive and promising light in time, particularly where systematic reviews on technology-enhanced learning in the field of the undergraduate medical programme have produced mixed result.REVIEW ARTICLEA Systematic Literature Review on Technology-Enhanced Learning in Medical EducationMay Honey Ohn1*, Bareth Ravindran2, Chan Zhi Wei3, Khin Maung Ohn4, Ng Pey Luen5Borneo Journal of Medical Sciences 14 (1) January, 2020: 3 – 171 Emergency Department, Sandwell & West Birmingham NHS Trust, United Kingdom2 Surgical Department, Hospital Tuanku Ja’afar Seremban, Kuala Lumpur, Malaysia3 Orthopaedics Department, Hospital Sungai Buloh, Kuala Lumpur, Malaysia4 Department of Surgery, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia5 Radiology Department, Hospital Queen Elizabeth II, Sabah, Malaysia* Corresponding author’s email: mayhoney.ohn@gmail.com Received: 14 July 2019 Accepted: 5 November 2019Borneo Journal of Medical SciencesBJMSKeywords: blended learning, technology-enhanced learning, medical education, hybrid learning, undergraduate medical students

Matched MeSH terms: Multimedia
Fulltext An enhanced dynamic transmission opportunity scheme to support varying traffic load over wireless campus networks

May Z, Alam MK, Husain K, Hasan MK

PLoS One, 2020;15(8):e0238073.
PMID: 32845901 DOI: 10.1371/journal.pone.0238073

Transmission opportunity (TXOP) is a key factor to enable efficient channel bandwidth utilization over wireless campus networks (WCN) for interactive multimedia (IMM) applications. It facilitates in resource allocation for the similar categories of multiple packets transmission until the allocated time is expired. The static TXOP limits are defined for various categories of IMM traffics in the IEEE802.11e standard. Due to the variation of traffic load in WCN, the static TXOP limits are not sufficient enough to guarantee the quality of service (QoS) for IMM traffic flows. In order to address this issue, several existing works allocate the TXOP limits dynamically to ensure QoS for IMM traffics based on the current associated queue size and pre-setting threshold values. However, existing works do not take into account all the medium access control (MAC) overheads while estimating the current queue size which in turn is required for dynamic TXOP limits allocation. Hence, not considering MAC overhead appropriately results in inaccurate queue size estimation, thereby leading to inappropriate allocation of dynamic TXOP limits. In this article, an enhanced dynamic TXOP (EDTXOP) scheme is proposed that takes into account all the MAC overheads while estimating current queue size, thereby allocating appropriate dynamic TXOP limits within the pre-setting threshold values. In addition, the article presents an analytical estimation of the EDTXOP scheme to compute the dynamic TXOP limits for the current high priority traffic queues. Simulation results were carried out by varying traffic load in terms of packet size and packet arrival rate. The results show that the proposed EDTXOP scheme achieves the overall performance gains in the range of 4.41%-8.16%, 8.72%-11.15%, 14.43%-32% and 26.21%-50.85% for throughput, PDR, average ETE delay and average jitter, respectively when compared to the existing work. Hence, offering a better TXOP limit allocation solution than the rest.

Matched MeSH terms: Multimedia
An evolution of image source camera attribution approaches

Jahanirad M, Wahab AW, Anuar NB

Forensic Sci Int, 2016 May;262:242-75.
PMID: 27060542 DOI: 10.1016/j.forsciint.2016.03.035

Camera attribution plays an important role in digital image forensics by providing the evidence and distinguishing characteristics of the origin of the digital image. It allows the forensic analyser to find the possible source camera which captured the image under investigation. However, in real-world applications, these approaches have faced many challenges due to the large set of multimedia data publicly available through photo sharing and social network sites, captured with uncontrolled conditions and undergone variety of hardware and software post-processing operations. Moreover, the legal system only accepts the forensic analysis of the digital image evidence if the applied camera attribution techniques are unbiased, reliable, nondestructive and widely accepted by the experts in the field. The aim of this paper is to investigate the evolutionary trend of image source camera attribution approaches from fundamental to practice, in particular, with the application of image processing and data mining techniques. Extracting implicit knowledge from images using intrinsic image artifacts for source camera attribution requires a structured image mining process. In this paper, we attempt to provide an introductory tutorial on the image processing pipeline, to determine the general classification of the features corresponding to different components for source camera attribution. The article also reviews techniques of the source camera attribution more comprehensively in the domain of the image forensics in conjunction with the presentation of classifying ongoing developments within the specified area. The classification of the existing source camera attribution approaches is presented based on the specific parameters, such as colour image processing pipeline, hardware- and software-related artifacts and the methods to extract such artifacts. The more recent source camera attribution approaches, which have not yet gained sufficient attention among image forensics researchers, are also critically analysed and further categorised into four different classes, namely, optical aberrations based, sensor camera fingerprints based, processing statistics based and processing regularities based, to present a classification. Furthermore, this paper aims to investigate the challenging problems, and the proposed strategies of such schemes based on the suggested taxonomy to plot an evolution of the source camera attribution approaches with respect to the subjective optimisation criteria over the last decade. The optimisation criteria were determined based on the strategies proposed to increase the detection accuracy, robustness and computational efficiency of source camera brand, model or device attribution.

Matched MeSH terms: Multimedia
Fulltext Comparison of effectiveness and time-efficiency between multimedia and conventional counselling on metered-dose inhaler technique education

King TL, Kho EK, Tiong YH, Julaihi SN

Singapore Med J, 2015 Feb;56(2):103-8.
PMID: 25715856

INTRODUCTION: This study aimed to evaluate whether multimedia counselling (MC) using a touchscreen computer is as effective and time-efficient as conventional counselling (CC) in promoting correct metered-dose inhaler (MDI) technique, with or without the valved holding chamber (VHC).

METHODS: Participants in the MDI-only and MDI-with-VHC groups were randomly assigned to the MC group or CC group. No blinding was imposed. Inhalation technique was assessed using checklists before and after counselling. Time spent on counselling was determined for all participants, while time taken to perfect the technique was determined only for participants who achieved perfect technique within one hour.

RESULTS: The CC group had more elderly participants than the MC group, but the difference was not significant. MDI-only and MDI-with-VHC users showed significant improvement in their inhaler technique after multimedia (44.5 ± 28.0% and 44.1 ± 14.4%, respectively) and conventional counselling (36.8 ± 20.5% and 37.0 ± 14.6%, respectively). No significant difference in MDI technique enhancement was found between the two groups. Although no significant difference was found between the MC and CC groups with regard to the time spent on counselling and the time taken to perfect the technique, the average time spent on counselling was longer for MDI-only users. MDI-only users had 13.5 times the odds of failing to achieve perfect technique compared to MDI-with-VHC users (95% confidence interval 1.50-121.32, p = 0.020).

CONCLUSION: MC and CC significantly improved MDI technique. Both methods showed comparable short-term effectiveness and time-efficiency in MDI technique education. VHC was beneficial, especially for MDI-users with hand-lung coordination problems.

Matched MeSH terms: Multimedia
Fulltext Effect of Multimedia Education on Nutritional Behaviour for Colorectal Cancer Prevention: An Application of Health Belief Model

Hatami T, Noroozi A, Tahmasebi R, Rahbar A

Malays J Med Sci, 2018 Nov;25(6):110-120.
PMID: 30914884 DOI: 10.21315/mjms2018.25.6.11

Background: Colorectal cancer is a major public health problem. A way to decrease this cancer is through dietary behavioural changes. The aim of this study was to determine the effects of education on dietary behaviour based on the health belief model (HBM) using multimedia.
Methods: In this clinical trial study, 98 participants were randomly allocated to an HBM group (n = 48) and a control group (n = 50). The HBM group received an audiovisual compact disc (CD) that contained information about nutritional behaviour of colorectal cancer (CRC) prevention based on HBM that lasted 45 min. Both groups completed questionnaires regarding demographic factors, knowledge and HBM constructs, and a three-day dietary recall at the beginning of the study, 1 week after, and 3 months after the education. The outcome of this study was measured by the amount of food servings consumed and dietary micronutrient intake.
Results: At the baseline, there were no significant differences between groups regarding demographic factors. Findings showed that self-efficacy (P < 0.001), severity (P < 0.001), and benefits (P < 0.001) were perceived to be higher, and knowledge (P < 0.001) was increased in the HBM group compared to control group 3 months after education. There was a significant increase in fruit and vegetable (P < 0.001) and dairy (P = 0.001) intake and a significant decrease in red meat servings (P = 0.016) in the HBM group compared to the control group. Also, intake of vitamin D (P < 0.001), folate (P < 0.001), calcium (P = 0.008), and dietary fibre (P < 0.001) was increased in the HBM group compared to the control group 3 months after education.
Conclusion: Education plans based on HBM and implemented through multimedia can change nutritional beliefs and behaviours for the prevention of colorectal cancer.

Matched MeSH terms: Multimedia
Fulltext Experimental Research on Badminton Teaching of Physical Education Major Based on Deep Learning in the Multimedia Environment

Lian S

Comput Intell Neurosci, 2022;2022:9249635.
PMID: 35341180 DOI: 10.1155/2022/9249635

There are many problems in the routine badminton teaching; there are mainly three aspects in college teaching. One is that the hardware equipment related to badminton is not enough; the second is that the badminton teaching does not meet the educational goals; the third is that the participation of college students is not high, which is no longer suitable for the current practical teaching. In order to improve the teaching method of badminton and improve the students' special performance of badminton, this paper studies the teaching of badminton based on multimedia environment. 82 students majoring in badminton were randomly divided into two classes. The experimental class (n = 41) used multimedia badminton teaching, and the control class (n = 41) used traditional badminton teaching, which lasted for one semester. Before and after the experiment, the students' physical fitness and badminton performance were tested. And the two classes of students were to send questionnaires to investigate interest in learning badminton and teaching satisfaction. The results of standing long jump, 50 m, and 800 m of the experimental class were improved by 0.2 m, 1.13s, and 16.25s, respectively. This shows that the physical quality and badminton performance of the experimental class under the multimedia environment are better than those of the control class under the general teaching. In the experimental class, 16 students are very interested in learning badminton, and 22 students are very satisfied with the multimedia teaching method; in the control class, only 9 students are very interested in learning badminton, and only 13 students are very satisfied with the traditional teaching method, which shows that the interest and satisfaction of students in the experimental class under the multimedia environment are higher than those in the control class under the traditional teaching.

Matched MeSH terms: Multimedia
Fulltext Innovative Practice of Multimusic Performance Culture Education of Core Literacy in Multimedia Environment

He S, He S, Gao X

J Environ Public Health, 2022;2022:9440849.
PMID: 35942144 DOI: 10.1155/2022/9440849

Under the framework of disciplinary knowledge integrating technology, the multimedia teaching application of music performance attracts a major opportunity for reflection and reconstruction. The purpose of this study is to explore the laws and experiences of music performance teachers' multimedia teaching applications under the framework of subject teaching knowledge integrating technology. Through the research to understand the classroom multimedia teaching application of music performance teachers, according to the research results, relevant strategies are put forward for the application of music performance teachers' classroom multimedia teaching, in order to effectively improve the classroom teaching effect of music performance teachers. This research mainly uses the classroom observation method and data statistical analysis method and takes 100 music video lessons of the National Educational Resources Public Service Platform as the survey object. A total of 100 teachers were observed and scored in the classroom through the compiled multimedia teaching observation table for music performance teachers, and then the data was analyzed to draw conclusions. The conclusions of this study are as follows: The multimedia application behaviors of the teachers of the excellent courses are different from those of the teachers of the daily classes. The two types of teachers have differences in the effectiveness of multimedia teaching application of music performance, and the scores of the practical application of information technology are uneven. The overall score of multimedia teaching applications of excellent course teachers is higher than that of daily course teachers, and the classroom teaching effect is better. In this regard, based on the observation and assessment of the effectiveness of multimedia teaching applications by two types of teachers, this paper puts forward some suggestions for music performance teachers to improve the effectiveness of multimedia teaching applications in classrooms from the aspect of teachers themselves and educational functions. It is hoped that it can provide some theoretical basis and practical materials for the personal and professional development of music performance teachers.

Matched MeSH terms: Multimedia*
Fulltext Invariant domain watermarking using heaviside function of order alpha and fractional Gaussian field

Abbasi A, Woo CS, Ibrahim RW, Islam S

PLoS One, 2015;10(4):e0123427.
PMID: 25884854 DOI: 10.1371/journal.pone.0123427

Digital image watermarking is an important technique for the authentication of multimedia content and copyright protection. Conventional digital image watermarking techniques are often vulnerable to geometric distortions such as Rotation, Scaling, and Translation (RST). These distortions desynchronize the watermark information embedded in an image and thus disable watermark detection. To solve this problem, we propose an RST invariant domain watermarking technique based on fractional calculus. We have constructed a domain using Heaviside function of order alpha (HFOA). The HFOA models the signal as a polynomial for watermark embedding. The watermark is embedded in all the coefficients of the image. We have also constructed a fractional variance formula using fractional Gaussian field. A cross correlation method based on the fractional Gaussian field is used for watermark detection. Furthermore the proposed method enables blind watermark detection where the original image is not required during the watermark detection thereby making it more practical than non-blind watermarking techniques. Experimental results confirmed that the proposed technique has a high level of robustness.

Matched MeSH terms: Multimedia
Fulltext Medical professionalism videos on YouTube: Content exploration and appraisal of user engagement

Ahmad T, Sattar K, Akram A

Saudi J Biol Sci, 2020 Sep;27(9):2287-2292.
PMID: 32884409 DOI: 10.1016/j.sjbs.2020.06.007

Background: Social media has become the fastest growing platform for sharing and retrieving information and knowledge, and YouTube is one of the most popular and growing sources of health and educational information video-sharing website. But, videos on this open platform are not peer-assessed, therefore, the accessible data should be adequately assessed. Till date, no exploration and analysis for assessing the credibility and usefulness of Medical professionalism videos available on YouTube are conducted.
Objective: To analyze the video sources, contents and quality of YouTube videos about the topic of medical professionalism.
Methods: A systematic search was accomplished on YouTube videos during the period between March 1, 2020 and March 27, 2020. The phrases as significant words used throughout YouTube web search were 'Professionalism in Medical Education', Professionalism in medicine', 'Professionalism of medical students', 'Professionalism in healthcare'. 'Teaching professionalism', 'Attributes of professionalism'. The basic information collected for each video included author's/publisher's name, total number of watchers, likes, dislikes and positive and undesirable remarks. The videos were categorized into educationally useful and useless established on the content, correctness of the knowledge and the advices. Different variables were measured and correlated for the data analysis.YouTube website was searched the using keywords 'Professionalism in Medical Education', Professionalism in medicine', 'Professionalism of medical students', 'Professionalism in healthcare'. 'Teaching professionalism', and 'Attributes of professionalism'.
Results: After 2 rounds of screening by the subject experts and critical analysis of all the 137 YouTube videos, only 41 (29.92%) were identified as pertinent to the subject matter, i.e., educational type. After on expert viewing these 41 videos established upon our pre-set inclusion/exclusion criteria, only 17 (41.46%) videos were found to be academically valuable in nature.
Conclusion: Medical professionalism multimedia videos uploaded by the healthcare specialists or organizations on YouTube provided reliable information for medical students, healthcare workers and other professional. We conclude that YouTube is a leading and free online source of videos meant for students or other healthcare workers yet the viewers need to be aware of the source prior to using it for training learning.

Matched MeSH terms: Multimedia
Fulltext Methods and Challenges in Shot Boundary Detection: A Review

Abdulhussain SH, Ramli AR, Saripan MI, Mahmmod BM, Al-Haddad SAR, Jassim WA

Entropy (Basel), 2018 Mar 23;20(4).
PMID: 33265305 DOI: 10.3390/e20040214

The recent increase in the number of videos available in cyberspace is due to the availability of multimedia devices, highly developed communication technologies, and low-cost storage devices. These videos are simply stored in databases through text annotation. Content-based video browsing and retrieval are inefficient due to the method used to store videos in databases. Video databases are large in size and contain voluminous information, and these characteristics emphasize the need for automated video structure analyses. Shot boundary detection (SBD) is considered a substantial process of video browsing and retrieval. SBD aims to detect transition and their boundaries between consecutive shots; hence, shots with rich information are used in the content-based video indexing and retrieval. This paper presents a review of an extensive set for SBD approaches and their development. The advantages and disadvantages of each approach are comprehensively explored. The developed algorithms are discussed, and challenges and recommendations are presented.

Matched MeSH terms: Multimedia
Fulltext Mobile phone text messaging to improve medication adherence in secondary prevention of cardiovascular disease

Adler AJ, Martin N, Mariani J, Tajer CD, Owolabi OO, Free C, et al.

Cochrane Database Syst Rev, 2017 Apr 29;4(4):CD011851.
PMID: 28455948 DOI: 10.1002/14651858.CD011851.pub2

BACKGROUND: Worldwide at least 100 million people are thought to have prevalent cardiovascular disease (CVD). This population has a five times greater chance of suffering a recurrent cardiovascular event than people without known CVD. Secondary CVD prevention is defined as action aimed to reduce the probability of recurrence of such events. Drug interventions have been shown to be cost-effective in reducing this risk and are recommended in international guidelines. However, adherence to recommended treatments remains sub-optimal. In order to influence non-adherence, there is a need to develop scalable and cost-effective behaviour-change interventions.
OBJECTIVES: To assess the effects of mobile phone text messaging in patients with established arterial occlusive events on adherence to treatment, fatal and non-fatal cardiovascular events, and adverse effects.
SEARCH METHODS: We searched CENTRAL, MEDLINE, Embase, the Conference Proceedings Citation Index - Science on Web of Science on 7 November 2016, and two clinical trial registers on 12 November 2016. We contacted authors of included studies for missing information and searched reference lists of relevant papers. We applied no language or date restrictions.
SELECTION CRITERIA: We included randomised trials with at least 50% of the participants with established arterial occlusive events. We included trials investigating interventions using short message service (SMS) or multimedia messaging service (MMS) with the aim to improve adherence to medication for the secondary prevention of cardiovascular events. Eligible comparators were no intervention or other modes of communication.
DATA COLLECTION AND ANALYSIS: We used standard methodological procedures expected by Cochrane. In addition, we attempted to contact all authors on how the SMS were developed.
MAIN RESULTS: We included seven trials (reported in 13 reports) with 1310 participants randomised. Follow-up ranged from one month to 12 months. Due to heterogeneity in the methods, population and outcome measures, we were unable to conduct meta-analysis on these studies. All seven studies reported on adherence, but using different methods and scales. Six out of seven trials showed a beneficial effect of mobile phone text messaging for medication adherence. Dale 2015a, reported significantly greater medication adherence score in the intervention group (Mean Difference (MD) 0.58, 95% confidence interval (CI) 0.19 to 0.97; 123 participants randomised) at six months. Khonsari 2015 reported less adherence in the control group (Relative Risk (RR) 4.09, 95% CI 1.82 to 9.18; 62 participants randomised) at eight weeks. Pandey 2014 (34 participants randomised) assessed medication adherence through self-reported logs with 90% adherence in the intervention group compared to 70% in the control group at 12 months. Park 2014a (90 participants randomised) reported a greater increase of the medication adherence score in the control group, but also measured adherence with an event monitoring system for a number of medications with adherence levels ranging from 84.1% adherence to 86.2% in the intervention group and 79.7% to 85.7% in the control group at 30 days. Quilici 2013, reported reduced odds of non-adherence in the intervention group (Odds Ratio (OR) 0.43, 95% CI 0.22 to 0.86, 521 participants randomised) at 30 days. Fang 2016, reported that participants given SMS alone had reduced odds of being non-adherent compared to telephone reminders (OR 0.40 95% CI 0.18 to 0.63; 280 patients randomised). Kamal 2015 reported higher levels of adherence in the intervention arm (adjusted MD 0.54, 95% CI 0.22 to 0.85; 200 participants randomised). Khonsari 2015 was the only study to report fatal cardiovascular events and only reported two events, both in the control arm. No study reported on the other primary outcomes. No study reported repetitive thumb injury or road traffic crashes or other adverse events that were related to the intervention.Four authors replied to our questionnaire on SMS development. No study reported examining causes of non-adherence or provided SMS tailored to individual patient characteristics.The included studies were small, heterogeneous and included participants recruited directly after acute events. All studies were assessed as having high risk of bias across at least one domain. Most of the studies came from high-income countries, with two studies conducted in an upper middle-income country (China, Malaysia), and one study from a lower middle-income country (Pakistan). The quality of the evidence was found to be very low. There was no obvious conflicts of interest from authors, although only two declared their funding.
AUTHORS' CONCLUSIONS: While the results of this systematic review are promising, there is insufficient evidence to draw conclusions on the effectiveness of text message-based interventions for adherence to medications for secondary prevention of CVD. Sufficiently powered, high-quality randomised trials are needed, particularly in low- and middle-income countries.

Matched MeSH terms: Multimedia
Multimedia elements of digital storytelling for dyslexic children

Norzehan Sakamat, Siti Nabilah Sabri, Norizan Mat Diah

Scientific Research Journal, 2017;14(2):35-48.
MyJurnal

Storytelling is considered as an interactive social arts that uses word and
gestures to reveal the elements and images of a story while engaging the
listener's imagination. Multimedia based digital storytelling learning
approach provides interesting, interactive, engaging and multisensory
learning experience to children. Children explore new experience and
scenarios as new stories are being told. This study concentrates on
determining the best combination of elements for designing effective digital
storytelling applications specifically for the usage of dyslexic children.
Dyslexic children are known to have a common learning difficulty that can
cause problems with reading, writing, spelling and comprehension. These
applications are design with the objective to help in improving dyslexic
children ability in readings and comprehensions. Four elements were
derived from extensive literature studies. The elements are multimedia
components, multi-sensory instructional approach, emotional design and
games design. The relationship among all the elements were determine
and described in details as it will be used to contribute to the design and
development of the application in further works. The strength of this study
is it models the combinations of technology, psychology and instructional
approach as a support components for developing an effective digital story
telling learning application for dyslexic children.

Matched MeSH terms: Multimedia
Multimedia environmental fate and transport model of dichlorodiphenyltrichloroethane (DDT): case study sayong river watershed, Johor, Malaysia

Ghani Z, Anuar A, Majid Z, Yoneda M

Sains Malaysiana, 2017;46:2383-2392.

This study describes the development of a multimedia environmental fate and transport model of dichlorodiphenyltrichloroethane (DDT) at Sungai Sayong watershed. Based on the latest estimated DDT emission, the DDT concentrations in air, soil, water and sediment as well as the transfer processes were simulated under the equilibrium and steady-state assumption. Model predictions suggested that soil and sediment was the dominant sink of DDT. The results showed that the model predicted was generally good agreement with field data. Compared with degradation reaction, advection outflow was more important processes occurred in the model. Sensitivities of the model estimates to input parameters were tested. The result showed that vapour pressure (Ps) and organic carbon water partition coefficient (KOC) were the most influential parameters for the model output. The model output-concentrations of DDT in multimedia environment is very important as it can be used in future for human exposure and risk assessment of organochlorine pesticides (OCPs) at Sungai Sayong Basin.

Matched MeSH terms: Multimedia
Penggunaan modul multimedia interaktif dengan agen pedagogi dalam pembelajaran elektrokimia: kesan terhadap pemahaman konsep dalam elektrokimia

Lee TT, Kamisah Osman

Sains Malaysiana, 2012;41:1301-1307.

Tajuk Elektrokimia didapati sukar dipelajari kerana konsep abstrak yang melibatkan tahap perwakilan makroskopik, mikroskopik dan simbolik. Kajian lepas menunjukkan bahawa animasi dan simulasi menggunakan teknologi maklumat dan komunikasi (TMK) boleh membantu pelajar membayangkan dan seterusnya memperkuatkan pemahaman mereka dalam mempelajari tajuk kimia yang abstrak. Ekoran daripada itu, modul multimedia interaktif dengan agen pedagogi (MMIAP) yang dinamakan Makmal EK (Elektrokimia) dibangunkan dalam usaha membantu pelajar dalam mempelajari Elektrokimia. Reka bentuk penyiasatan kuasi eksperimen dengan ujian pra/pos kumpulan kawalan tidak setara dijalankan dalam usaha untuk menilai keberkesanan MMIAP Makmal EK terhadap pemahaman konsep pelajar dalam mempelajari elektrokimia. Seramai 127 orang pelajar tingkatan empat dari dua buah sekolah menengah terlibat dalam kajian ini. Setiap sekolah mempunyai sebuah kumpulan rawatan dan sebuah kumpulan kawalan yang diajar oleh guru kimia yang sama. Ujian pencapaian pra dan pos diberikan untuk menilai pemahaman konsep Elektrokimia pelajar sebelum dan selepas mempelajari kimia. Hasil kajian menunjukkan bahawa intervensi seperti yang direkabentuk dalam kajian menghasilkan perbezaan yang bererti antara kumpulan kawalan dan kumpulan rawatan dalam memahami konsep Elekotrokimia.

Matched MeSH terms: Multimedia
Fulltext Piloting digital memory album project for older adult with mild to moderate dementia in Malaysia – a feasibility study

Ponnusamy Subramaniam, Kwai Ching Kan, Shazli Ezzat Ghazali, Rosdinom Razali

Jurnal Sains Kesihatan Malaysia, 2018;16(101):243-244.
MyJurnal

Introduction: There are increasing trend in using information and communication technology to enhance the deliverance of reminiscence work for people with dementia. Thus this study aimed to explore the feasibility of Digital Memory Album (DMA) to support reminiscence work and subsequently evaluate the psychosocial benefits of the DMA system for older adults with dementia living in community. Method: This was an exploratory case study involved five participants with mild to moderate dementia and their primary caregivers. Each participant had an opportunity to review their own life history using Life Review Experience Form (LREF) with the researcher for 8 consecutive weeks in which subsequently facilitated in development of a personalised digital life story. Caregivers provided additional information to support the development of DMA. The whole process was audio recorded. The digital life story was presented in multimedia format and displayed using the DMA. The DMA was given to the participants for review. Qualitative data was collected using semi structure questions with the participants and caregivers immediately after the completion of DMA and 6 weeks after having the DMA as a gift. Results: Analysis of the audio-records and interview data indicated that DMA promoted psychosocial wellbeing which included enjoyment, comfort, stimulate long term memory and enhanced communication and social interactions with family members and friends. Caregivers expressed the DMA helped them in recollecting the past and better understanding of their loved ones. It also reoriented their focus on their loved ones from their disability to the remaining strength. Conclusion: For the first time, this study demonstrates the feasibility of using DMA in improving the psychosocial wellbeing for people with dementia in Malaysia.

Matched MeSH terms: Multimedia
Fulltext Quality of Service Class Identifier (QCI) radio resource allocation algorithm for LTE downlink

Mamman M, Hanapi ZM, Abdullah A, Muhammed A

PLoS One, 2019;14(1):e0210310.
PMID: 30682038 DOI: 10.1371/journal.pone.0210310

The increasing demand for network applications, such as teleconferencing, multimedia messaging and mobile TV, which have diverse requirements, has resulted in the introduction of Long Term Evolution (LTE) by the Third Generation Partnership Project (3GPP). LTE networks implement resource allocation algorithms to distribute radio resource to satisfy the bandwidth and delay requirements of users. However, the scheduling algorithm problem of distributing radio resources to users is not well defined in the LTE standard and thus considerably affects transmission order. Furthermore, the existing radio resource algorithm suffers from performance degradation under prioritised conditions because of the minimum data rate used to determine the transmission order. In this work, a novel downlink resource allocation algorithm that uses quality of service (QoS) requirements and channel conditions to address performance degradation is proposed. The new algorithm is formulated as an optimisation problem where network resources are allocated according to users' priority, whereas the scheduling algorithm decides on the basis of users' channel status to satisfy the demands of QoS. Simulation is used to evaluate the performance of the proposed algorithm, and results demonstrate that it performs better than do all other algorithms according to the measured metrics.

Matched MeSH terms: Multimedia
Teleconferencing using multimedia messaging service (MMS) for long-range consultation of patients with neurosurgical problems in an acute situation

Waran V, Selladurai BM, Bahuri NF, George GJ, Lim GP, Khine M

J Trauma, 2008 Feb;64(2):362-5; discussion 365.
PMID: 18301199 DOI: 10.1097/TA.0b013e318070cc88

: We present our initial experience using a simple and relatively cost effective system using existing mobile phone network services and conventional handphones with built in cameras to capture carefully selected images from hard copies of scan images and transferring these images from a hospital without neurosurgical services to a university hospital with tertiary neurosurgical service for consultation and management plan.

Matched MeSH terms: Multimedia

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