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28,451 Article Results

A Low Complexity Navigation Data Estimation Algorithm for Weak GNSS Signal Tracking

10.12928/telkomnika.v13i1.1268
Shunxiao; National University of Defense Technology Wu , Yangbo; National University of Defense Technology Huang , Shaojie; National University of Defense Technology Ni , Gang; National University of Defense Technology Ou
The computation load of traditional navigation data estimation algorithms for weak GNSS signal tracking increases exponentially with respect to the number of data bits needed to be estimated. To solve this problem, by adopting the dynamic programming philosophy, a navigation data bits estimation algorithm is proposed. The proposed algorithm uses the partial sum of correlation values as data bit combination searching branches. It can predict and exclude searching branches of data bit combination which have small coherent accumulated energy as soon as possible by angle quantification, thus reducing its computation load to be linearly related to the number of data bits needed to be estimated. Simulation results show that for signal of 500bps navigation data rate, the carrier track loop with a frequency discriminator implementing 0.12s coherent accumulation by navigation data estimation improves the tracking sensitivity up to 7 dB compared with traditional frequency discriminator under the same track accuracy constraint.
Volume: 13
Issue: 1
Page: 238-249
Publish at: 2015-03-01

Low zinc serum affects insulin-like growth factor-1 level in dehydrated pregnant women

10.11591/ijphs.v14i1.24431
Erry Yudhya Mulyani , Hardinsyah Hardinsyah , Dodik Briawan , Budi Iman Santoso , Idrus Jus'at
Maternal body fluids imbalance affects amniotic fluid, serum sodium-potassium, edema, and preeclampsia. Insulin-like growth factor-1 (IGF-1) is a growth hormone and a regulator in sodium balance regulation. This study aimed to determine the correlation of IGF-1, zinc, calcium, and sodium with hydration status and the nutrients impact to IGF-1 based on hydration status of pregnant women at Kebon Jeruk Health-Center, West Jakarta. This cohort-prospective study was conducted in December 2016 to January 2018. A total of 66 pregnant women in the second trimester were examined. Urine color, urine specific gravity, serum sodium, serum osmolality and urine were used as hydration status indicators. Zn, Ca, Na, and IGF-1 levels as the growth indicator from mother to fetus. Pearson correlation test, independent t-test and linear regression were used in statistical analysis. There were no differences in IGF-1, Zn, Ca, and Na serum between the two groups (p³0.05). There was no relationship between Ca, Na and IGF-1 level (p³0.05). The regression results show a possitive relation that low zinc serum affect IGF-1 level in dehydrated pregnant women. Therefore, it is necessary for pregnant women to consume zinc-rich foods to increase IGF-1 level and keep hydration status with water consume 3.0 L per-day.
Volume: 14
Issue: 1
Page: 175-182
Publish at: 2015-03-01

A meta-analysis of long-term COVID-19 symptoms

10.11591/ijphs.v14i1.24087
Shi D. Prantilla , Cesar G. Demayo , Mark Anthony J. Torres , Orven E. Llantos
This meta–analysis examines the far–reaching effects of long COVID (LC), highlighting the need for welfare strategies emphasizing the Parity of Esteem. The analysis of clinical studies reveals the prevalence of LC across various demographic factors, including age, gender, infection type, and severity. The findings highlight persistent pulmonary impairments that result in post-COVID pulmonary fibrosis (PCPF), long-term cardiovascular symptoms, gastrointestinal issues, dermatological concerns, and neuropsychiatric outcomes. These effects continue beyond the acute phase of COVID-19, affecting both symptomatic and asymptomatic people. The study emphasizes that LC is not only a physical ailment but also has a significant impact on mental health, necessitating a holistic approach to healthcare. Psychological and emotional distress among LC patients necessitates empathetic support. This study concludes by emphasizing the significance of LC and advocating for data-driven healthcare policies and assistance programs to address the unique challenges encountered by COVID-19 survivors. For managing the long-term effects of LC on both physical and mental health, an unwavering commitment to parity of esteem is crucial.
Volume: 14
Issue: 1
Page: 311-321
Publish at: 2015-03-01

Analysis of risk factors and prevention strategy in accidents among coal hauling trucks: a scoping review

10.11591/ijphs.v14i1.24795
Adenan Adenan , Zulkifli Djunaidi
Powered hauling equipment is one of the most critical operational elements in the mining sector. Haulage is a significant hazard for the mining industry, accounting for over half of all mining-related fatal accidents yearly. Identifying safety risk variables is the foundation of risk assessment and accident prevention. This study aimed to identify risk variables and prevention techniques to reduce occurrences among truck drivers in coal mining. This research approach is a scoping review with the PRISMA Extension for Scoping Reviews (PRISMA-ScR). Thirty-five articles were reviewed based on the results of inclusion and exclusion criteria. Data analysis was performed using content analysis. The results show that human, environmental, machine and organizational factors contribute to the risk among truck drivers in coal mining. Safety culture, staffing and scheduling, training and education, policy and procedure implementation, and technology deployment are all part of the accident prevention plan. The central government should pay particular attention to the employment conditions of workers in cities with decreased resources and develop policies to prevent mining-related diseases in local communities.
Volume: 14
Issue: 1
Page: 183-191
Publish at: 2015-03-01

The role of technological pedagogical and content knowledge on career adaptability among teachers in Indonesia and Malaysia

10.11591/ijphs.v14i1.24230
Rosita Endang Kusmaryani , Tria Widyastuti , Siti Rohmah Nurhayati , Hazalizah Hamzah
Since the COVID-19 pandemic, face-to-face learning has been transformed into online learning. This phenomenon was really challenging for teachers because they were not used to it. The adaptability of the teacher becomes an indispensable aspect to face the problem. The ability to integrate materials, pedagogy and technology or technological pedagogical and content knowledge (TPACK) supported the adaptability in implementing online learning. The purpose of this study was to investigate the impact of TPACK on professional adaptability. A sample of 457 junior and senior high school teachers in Indonesia and Malaysia completed the technological pedagogical and content knowledge scale and the career adaptability scale. Based on partial least square analysis, this study found that TPACK played a role in predicting four dimensions of career adaptability: concern, control, curiosity, and confidence. This structural model was also supported with path analysis. Therefore, TPACK becomes an essential aspect in influencing teachers' career adaptability.
Volume: 14
Issue: 1
Page: 361-370
Publish at: 2015-03-01

Capacity strengthening of village health volunteers during and post-COVID-19: a model to prepare for emerging diseases

10.11591/ijphs.v14i1.24870
Punnatorn Nawan , Monthicha Raksilp , Waratip Kankarn , Nopparat Songserm
Village health volunteers (VHVs) were essential in handling during and post-coronavirus disease 2019 (COVID-19). This study aimed to develop the capacity enhancement model of VHVs in preventing COVID-19 in Thailand. The development process and data collection used 12 stakeholders and 55 VHVs, respectively. The research tools were focus group discussions and questionnaires. We employed descriptive and inferential statistics for quantitative and content analysis for qualitative data. The model development was implemented in 9 processes: i) study the situation, ii) brainstorm to analyze the problems, iii) set the guidelines for model development, iv) organize training, v) review of role-based skills, vi) conduct public relations, vii) observe and follow up, viii) evaluate the operation, and ix) reflect on the results and lessons learned. After the model was developed, knowledge, attitude, and behavior in preventing COVID-19 were significantly better than before their capacity was enhanced (p<0.001). The model named “NAMKHUN Model,” which consisted of N=working as a network; A=ability to use application; M=effective management; K=up-to-date knowledge; H=having health literacy; U=having unity; and N=fast, accurate and up-to-date News). The success factor from the lesson learned was teamwork, which complements up-to-date knowledge and will create desirable skills for dealing with emerging diseases in the future.
Volume: 14
Issue: 1
Page: 10-18
Publish at: 2015-03-01

Health consideration in food consumption: impacts of education level and custom rules adherence

10.11591/ijphs.v14i1.24291
Ni Putu Wulan Purnama Sari , Adrino Mazenda , RR Dian Tristiana
Individual attributes, such as educational background, may influence the degree of health consideration in food consumption. The local social norms may affect the same consideration in the collective level. Represented by education level and the custom rules adherence in food choosing behavior, this study aimed to examine how knowledge influences health consideration in food consumption and how the local social norms moderate this association in a multicultural enriched society. By utilizing the Bayesian Mindsponge Framework (BMF) as a conceptual framework, this study analyzed a dataset of 710 urban residents in Indonesia. There was a negative association between education level and health consideration in food consumption in which the custom rules adherence in food choosing behavior moderated against this negative association. For those with a low level of custom-based food consumption, their health consideration is lower as they have higher education level. However, the opposite trend which is a more intuitive positive association was found in those who consume more custom-based food. Socio-cultural factors have a complex impact on food choosing behavior among Indonesian urban residents. Therefore, governmental policies in the health promotion campaign of healthy-nutritious food should incorporate socio-cultural aspects with a deeper understanding of the human mind’s information processing.
Volume: 14
Issue: 1
Page: 245-256
Publish at: 2015-03-01

Noise exposure and hearing threshold levels of rice mill workers

10.11591/ijphs.v14i1.24564
Siti Rachmawati , Iwan Suryadi , Nurlaila Fitriani , Fathoni Firmansyah , Khoirun Nisya
Industrial noise is generally one of the risk factors for occupational and environmental safety and health. Noise is a risk factor for decreased hearing threshold value in addition to other factors such as age, working period. This study used a cross-sectional design that aimed to identify the hearing threshold level (HTL) of rice mill workers exposed to hazardous noise in Karanganyar Regency, and investigate the relationship with other factors such as age, tenure. Audiometric data from 92 participants were collected through audiometric examination by qualified personnel using an audiometer in a quiet environment. The test was conducted after the participants had rested completely for >14 hours after their last exposure to workplace noise. The results showed that all participants had worked in a noise-hazard work zone for >1 year. The participants' ages ranged from 28 to 57 years. The average hearing threshold in the right ear was 36.71 dB and the average hearing threshold in the left ear was 39.55 dB. The hearing loss associated with work experience was greater than that caused by noise intensity age. Noise intensity, age and working experience were significant to the workers' ear hearing threshold values. Multivariate test results show that noise intensity is the most influential factor (>60%) on HTL. HTL among industrial workers should be assessed regularly. At the health policy level, these workers need to start being protected when they start working.
Volume: 14
Issue: 1
Page: 211-218
Publish at: 2015-03-01

The experience of COVID-19: assessing the Malaysian counselors in training coping strategies

10.11591/ijphs.v14i1.24082
Siti Salina Abdullah , Suhaili Arifin , Fazliyaton Ramley , Kamarul Md Shah , Yusni Mohamad Yusop , Masturina Ahamad , Norazizalina Mat Najib
The COVID-19 pandemic also had a psychological impact on various levels of society including trainee counselors. Therefore, the aim of this study is to explore the coping strategies employed by trainee counselors to overcome their challenges within their internship during COVID-19. This study is a quantitative study and was conducted among 106 final year trainee counsellors enrolled in a bachelor's counselling program at the University Malaysia Terengganu (UMT). There were two instruments used in this study, consisting of a sociodemographic questionnaire and the Malay Brief COPE (MBC) scale. The findings indicate that emotion focused is mostly used by the counsellors in training with the mean value of 28.96 (SD=4.891); the mean of problem-focused was 18.08 (SD=3.080); and the mean of avoidance coping was 26.12 (SD=5.341). The study's dataset can be used by counselor educators, the Malaysian Board of Counsellors, clinicians, and academicians to improve the effectiveness and competencies of trainee counsellors completing internship during the adverse period.
Volume: 14
Issue: 1
Page: 460-468
Publish at: 2015-03-01

Challenges in implementing dengue surveillance in Bantul District Special Region of Yogyakarta, Indonesia

10.11591/ijphs.v14i1.24626
Fardhiasih Dwi Astuti , Vitri Widyaningsih , Eti Poncorini Pamungkasari , Achmad Arman Subijanto
The surveillance system is a source of information for policymaker to address the dengue outbreak. However, there was a lack of information on the effectiveness of dengue surveillance system in reporting the outbreak. This study aims to assess dengue surveillance activities in Bantul District, Special Region of Yogyakarta, Indonesia, one of the districts with a high burden of dengue, to provide information on current effectiveness and need assessment for further improvement for dengue surveillance system. This qualitative study was conducted in Bantul District, Special Region of Yogyakarta. The assessment approach was based on the input-processoutput-outcome (IPOO) model. The study participants were selected based on purposive sampling. Data were collected through interviews. Eight program holder surveillance were interviewed based on the interview guide. The surveillance system in Bantul Regency already utilizes electronic reporting. Reporting cases of dengue uses the system for surveillance of outbreak events (SISKLB). Analysis and interpretation are done to monitor progress in cases. The follow-up evaluation ceses is vector control to prevent the spread of the case. The incidence of dengue is still higher than the national rate. The case fatality rate (CFR) for dengue is <1%; CFR has hit its target. The larvae-free rate hasn't reached its target yet. Optimizing electronic reporting can improve the quality of information used as a reference in decision-making. SISKLB was created for timely reporting and monitoring of dengue cases. Monitoring available data laboratory can be used as a quick response to take action to prevent an increase in cases.
Volume: 14
Issue: 1
Page: 19-26
Publish at: 2015-03-01

“Pineapple eyes”: local social networks to prevent and control epidemics in Thailand’s southern beach tourism provinces

10.11591/ijphs.v14i1.24034
Lapasrada Jitwarin , Krittabhart Chinabhark , Tawatchai Jitwarin
The study aimed to qualitatively examine epidemic prevention and control processes in beach tourism provinces in the upper southern region of Thailand, as well as investigate networks related to public health emergency management (PHEM) during such epidemics. The findings highlighted key elements of PHEM for emerging infectious diseases. This involved initial assessments of epidemics and health conditions, categorizing the population by risk, and performing prognosis. Subsequently, operational guidelines for prevention, disease control, and treatment were proposed and often submitted for consideration and orders to the provincial communicable disease control committee. Meetings were held to disseminate committee announcements and measures for implementation by relevant departments, enhancing operational guideline development. Successful local networks as pineapple eyes for PHEM in response to emerging infectious diseases were characterized by robust social networks and informal cooperation at village and community levels, serving as crucial mechanisms for disease control and care. Additionally, business sector networks transformed "mutual suffering" into cooperation, with entrepreneurs in the tourism industry taking the lead. They developed various websites and applications at different stages to promote and support situation management, proving to be a vital mechanism for an effective response to emerging infectious diseases.
Volume: 14
Issue: 1
Page: 322-332
Publish at: 2015-03-01

The role of midwives in preventing malaria in pregnant women: qualitative study from South-West Sumba Regency, Indonesia

10.11591/ijphs.v14i1.24099
Dewa Ayu Putu Mariana Kencanawati , Conchita Emiliana Ndapa , Evi Martha
Pregnant women in Indonesia, particularly in the Southwest Sumba Regency are faced with high malaria incidence. To overcome the challenge, midwives play a crucial role in integrating malaria services into maternal and child health (MCH) program. Therefore, this study aimed to examine the role of midwives in the implementation of integrated MCH services in the Southwest Sumba district. The location and participants were carefully selected and data collection was performed using the semi-structured interview method, which was divided into three sections. These included i) understanding of midwives regarding malaria and dangers to pregnant women, ii) the implementation of integrated malaria services for the MCH program, and iii) the role of midwives. The collected data were thematically analyzed and narratively presented based on the themes. The results showed that midwives in North Kodi District had a limited understanding of malaria. Consequently, the implementation of integrated MCH services, including specialized preventive education for pregnant women, was not at the optimal level. This phenomenon showed the need for malaria education, preparation of service standards, facilitative supervision, and cross-sectoral collaboration.
Volume: 14
Issue: 1
Page: 381-390
Publish at: 2015-03-01

Spatial study of the implementation of ivermectin, diethylcarbamazine citrate, and albendazole in an urban area

10.11591/ijphs.v14i1.24822
Ikrimah Nafilata , Taniawati Supali , Tri Yunis Miko Wahyono , Nurhayati Adnan Prihartono , Kholisotul Hikmah , Yuli Puspita Devi
Studies on lymphatic filariasis (LF) in Indonesia have mostly focused on the disease determinants with limited focus on spatial-based and the determinants of implementing ivermectin, diethylcarbamazine citrate, and albendazole (IDA). This study aimed to identify the causes of program failure. A cross-sectional survey was conducted from November to December 2022 in nine urban villages with high endemic records and one sentinel village in Pekalongan City, Central Java, Indonesia. The analysis using Quantum Geographical Information System (QGIS) and Pearson correlation. Slum settlements were linked to the presence of open sewers (p=0.000; r=0.974) and overcrowding (p=0.033; r=0.672), while the first round of IDA medication adherence correlated with knowledge of medication (p=0.054; r=-0.623) and willingness to take the medication in the second round (p=0.051, r=0.603). Adverse effects of the treatment are strongly correlated with drug boredom from taking medication (p=0.003; r=0.828) and assistance from health workers (p=0.027; r=0.791). We identified gaps in slum settlements, open sewers, overcrowding and medication adherence, including low knowledge of medication, unwillingness to take second-round medication, adverse effects, and boredom with taking medication. We recommend effective strategies by engaging health education between health workers, local leaders, and private sectors as key to ensuring elimination program.
Volume: 14
Issue: 1
Page: 37-47
Publish at: 2015-03-01

Two decades of HIV/AIDS mortality trend analysis in the Philippines

10.11591/ijphs.v14i1.23554
Arafat M. Balt , Rosnia D. Mangotara , Nihaya G. Sambawa , Princess Altheya Mae P. Alamada , Chin-chin J. Demayo , Cesar G. Demayo
Public health surveillance indicates that the country's HIV infection rate is rising, with the Western Pacific region experiencing the highest growth. Due to the scarcity of studies on HIV in the nation, the present state of the HIV epidemic must be ascertained by gathering data from public health surveillance and HIV mortality time trend analysis. The Department of Health's Philippine Health Statistics (PHS) provided the information. The PHS-recommended algorithms for vital health indicators were used to calculate mortality rates. According to the study's findings, the death rate in the nation is rising, necessitating tight efforts to stop the virus's transmission and provide access to anti-retroviral therapy. Although there is a considerable difference between the two sexes, men had a greater mortality rate than women, suggesting that men were more vulnerable to HIV/AIDS mortality. The study also revealed that HIV testing hurdles were to blame for making young to middle-aged individuals the population most susceptible to mortality from this illness. Additionally, the National Capital Region has the most significant mortality rate, so the government should focus on promoting health in this area as it has the highest mortality rate.
Volume: 14
Issue: 1
Page: 1-9
Publish at: 2015-03-01

General mental health and new media literacy among Malaysian adult urbanites

10.11591/ijphs.v14i1.23870
Dee Emeralda , Abdul Hadi Che Hasan , Yi Ming Ho , Kususanto Ditto Prihadi
This study investigates the multifaceted interplay of risk and protective factors influencing general mental health (GMH), focusing on the impact of external validation seeking through online interactions and the protective role of perceived social support (PSS) against GMH problems, mediated by unconditional self-acceptance (USA) and PSS with new media literacy (NML) is introduced as a moderator variable, affecting the interplay between PSS, USA, and interpersonal mattering (IPM) in predicting GMH. A moderated serial mediation model was proposed and tested with 380 purposively recruited adult urbanites from Malaysia. The results reveal that individuals with high NML perceive greater social support, leading to higher self-acceptance and mattering, enhanced GMH protection. This study highlights the critical role of NML in the digital age’s impact on GMH.
Volume: 14
Issue: 1
Page: 107-113
Publish at: 2015-03-01
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