Articles

Access the latest knowledge in applied science, electrical engineering, computer science and information technology, education, and health.

Advanced Search
Filter Icon

Filters article

Years

FAQ Arrow
Single Year
Range Year
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

28,451 Article Results

New Method of Optimal Design of Electrical Rotating Machines

10.11591/ijeecs.v5.i3.pp479-487
Flur Ismagilov , Vyacheslav Vavilov , Valentina Ayguzina , Vladimir Bekuzin
The article presents a new method of the optimal design of the electrical rotating machine based on genetic algorithm. The mathematical description of the proposed algorithm is developed, and the optimal design of the high-speed electrical rotating machine by proposed method is performed. A new method for optimal design allows obtaining a new electrical rotating machine which mass is lower than mass of the initial electrical rotating machine by two times; the value of the rotor active length is lower by 2.37 times and the current density is higher by 1.7 times in comparison with the initial electrical rotating machine. The losses are increased by only 25 percent (power, rotation frequency and materials of both electrical rotating machine are the same).
Volume: 5
Issue: 3
Page: 479-487
Publish at: 2017-03-01

Human Resource Practices in Public Healthcare Sector: A Perceptual Study among Healthcare Professionals

10.11591/ijphs.v6i1.6532
Sumathi G N
The study is aimed to identify various human resource practices in the public healthcare sector and to measure the level of human resource practices. The study adopts the perceptual view of healthcare professionals such as medical officers and staff nurses working in Primary Health Centres of Tamilnadu. A survey using a questionnaire is used to collect data from healthcare professionals. The results indicated that human resource practices such as job autonomy and job security are perceived to be useful and necessary, while training and performance management system are found to provide necessary inputs for carrying job duties and practices such as career growth opportunities and compensation need the attention of the officials of Health and Family Welfare department of Tamilnadu Government for enhancing the utility of these practices.
Volume: 6
Issue: 1
Page: 51-56
Publish at: 2017-03-01

Analysis of Transistor Open Fault Diagnosis for Shunt Active Power Filters

10.11591/ijeecs.v5.i3.pp521-529
Benyettou Loutfi , T. Benslimane
In this paper a transistor open-circuit fault diagnosis problem in two-level voltage inverter controlled shunt active power filter drives was discussed. Taking into consideration requirements of the contemporary monitoring drive systems original transistor fault diagnostic technique were proposed. Presented results were obtained by designed in PSIM software simulation model.
Volume: 5
Issue: 3
Page: 521-529
Publish at: 2017-03-01

Supplementation of Vitamin A and D in the Medication of Lung Tuberculosis

10.11591/ijphs.v6i1.6537
Rita Dian Pratiwi , Dibyo Pramono , Iswanto Iswanto , Junaedi Junaedi
At District of Wonosobo, Indonesia incidence rate of lung tuberculosis(TB) is increasing over years. In 2011 sputum conversion rate had reached 83.8%. Incidence rate of lung TB is still relatively high. This is influenced by many factors, one of which is the process of transmission. Potential of transmission may still occur until end of intensive medication (2 months). Vitamin A and D as immunoprotection can be used as supplements that can accelerate sputum conversion. To find out effect of vitamin A and D supplementation in accelerating sputum conversion of lung TB patients during intensive phase. The study was true experimental (double blinded randomized controlled trial). Subject of the study consisted of two groups; one comprised as many as 30 positive acid fast bacillus lung TB patients supplemented with vitamin A at dosage of 1 x 5000 IU/day and vitamin D at dosage of 1 x 400 IU/day whereas another group was placebo during intensive phase. There was effect of vitamin A and D supplementation to acceleration of sputum conversion with score of p 0.003; HR 2.45. Sputum conversion acceleration occurred in the experiment group during the second week with vitamin A and D supplementation as much as 86%. Vitamin A and D supplementation could accelerate the incidence of sputum conversion as much as 2.45 times greater than placebo group; thus vitamin A and D could be used as complementary supplements in the medication of lung TB medication during intensive phase.
Volume: 6
Issue: 1
Page: 85-90
Publish at: 2017-03-01

Knowledge about Obstetric Danger Signs and Associated Factors among Antenatal Care Attendants

10.11591/ijphs.v6i1.6528
Mulugeta Shegaze
Knowledge of mothers about obstetric danger sign is the basic influencing factor for utilization of skilled maternal and neonatal cares which reduce maternal and new born mortality and morbidity. Therefore this study intended to assess knowledge about obstetric danger sign and identify associated factors among antenatal care attendants. Institutional based cross- sectional study was conducted from April to June 2015 among 358 randomly selected antenatal care attendants. Epi Info version 7 and SPSS version 20 software were used for data entry and analysis respectively. Logistic regression was run to look for the association between dependent and explanatory variables; and using variables which have p-value ≤ 0.25 binary logistic regression was fitted. Association presented in Odds ratio with 95% confidence interval and significance determined at P-value less than 0.05. Most of the respondents able to name some of the accepted danger signs. Two hundred eight (58%), 182(51%) and, 161(45%) of mother were knowledgeable for obstetric danger sign which could occur during pregnancy, at child birth and post-partum period respectively. The most mentioned dander signs were bleeding, retained placenta and prolonged labor. The factors that associated with Knowledge of obstetric danger signs were urban residence (AOR=2.6; 95% CI: 1.8, 4.2), being literate (AOR=2.54; 95% CI: 1.14, 5.76), multiparity (AOR 1.5; 95% CI: 1.14, 2.3) and being informed (AOR=3; 95% CI: 1.6, 6.4). The study showed that attendant’s knowledge was low. This could be averted through strategies designed to address women’s through health extension workers and health professionals.
Volume: 6
Issue: 1
Page: 21-26
Publish at: 2017-03-01

Interference and Electromagnetic Compatibility Challenges in 5G Wireless Network Deployments

10.11591/ijeecs.v5.i3.pp612-621
Idrissa Abubakar , Jafri Din , Manhal Alhilali , Hong Yin Lam
5G wireless network technology is going operate within the environment of other electrical, electronic and electromagnetic devices, components and systems, with capability of high speed data connectivity acting as network transceiver stations with Massive MIMO for Internet of Things (IoT). Considering the level of interoperability, electromagnetic Interference and electromagnetic compatibility to avoid electromagnetic pulse effects (EMP) which is capable of not only causing network malfunctions but total devices and equipments failure in mission critical operations, like hospital MRI scan machines, security profiling and data handling or even personal healthcare devices like heart pacemaker. Electromagnetic energy coupling in PCB due to: radiation, reflection and Crosstalk generates reliability challenges affecting Signal Integrity between traces of multilayer boards stalks, power bus and packaging creating Electromagnetic interference (EMI) in PCB leading false clock response to system failure. Above were considered very essential when deploying 5G wireless network facility as presented in this paper. 
Volume: 5
Issue: 3
Page: 612-621
Publish at: 2017-03-01

The Application of the IMB Model as Primary Prevention on Adolescent’s Premarital Sexual Intention

10.11591/ijphs.v6i1.6533
Linda Suwarni , Selviana Selviana , Ufi Ruhama , Iskandar Arfan
Previous studies showed the information, motivation, and behavioral skills (IMB) model could be used to predict and prevent reducing sexual risk behaviors. This paper examines the effectiveness of IMB interventions in reducing adolescent’s premarital sexual intentions. A quasy experimental nonequivalent pretest-posttest control group design was conducted among 250 students in 20 secondary schools in Pontianak with intervention IMB models and 100 students in the control group. There was a significant differences of information (delta mean = 3.008; 95% CI = 2.329 to 3.687; p value = 0.0001), motivation (delta mean = 1.532; 95% CI = 0.846 to 2.218; p value = 0, 0001), and skills to refuse or delay premarital sexual behavior (delta mean = 1.604; 95% CI = 0.629 to 2.579; p value = 0.001) on adolescents between before and after the application of the IMB model in secondary students in pontianak, Indonesia. In addition, there were significant differences intention adolescents in the control group and the experimental between before and after the IMB intervention (p value < 0.05). IMB model could be applied as primary prevention on adolescent’s premarital sexual intention through integration in school subjects. It is needed a support and debriefing skills in teachers.
Volume: 6
Issue: 1
Page: 57-62
Publish at: 2017-03-01

Optimum Transmitter Receiver Ratio for Maximum Wireless Energy Transfer

10.11591/ijeecs.v5.i3.pp599-605
Mohamad Harris Misran , Sharul Kamal Abdul Rahim
Due to high demand of using cordless mobile device, the interest in wireless energy transfer (WET) has been growth intensively. This paper presented a method to obtained optimum transmitter receiver ratio for maximum performance of WET system using different initial antenna size at various distance. An optimized algorithm has been developed to determine the optimum ratios that yield the highest wireless transfer efficiency (WTE) at near field communication (NFC) frequency, 13.56MHz. 30mm x 30mm single square loop antenna is used as initial size of both transmitter and receiver using FR4 with operating distance = 50mm. Operating distance and initial size of the antenna will be varied and the effect to the WTE will be studied using Matlab, verified using Microsoft Studio CST. At distance = 50mm and initial size of the antenna = 30mm x 30mm, optimum transmitter to receiver ratio equal to 1:3 is obtained. The pattern of optimum transmitter receiver ratio between Matlab and CST has met an agreement. This research limited to integer transmitter receiver ratio used only and no decimal number being involved in magnify the transmitter size.
Volume: 5
Issue: 3
Page: 599-605
Publish at: 2017-03-01

CBIR of Brain MR Images Using Histogram of Fuzzy Oriented Gradients and Fuzzy Local Binary Patterns

10.11591/ijai.v6.i1.pp8-17
Athira TR , Abraham Varghese
Retrieval of similar images from large dataset of brain images across patients would help the experts in the decision diagnosis process of diseases. Generally used feature extraction methods are color, texture and shape. In medical images texture and shape features are most efficient. Histogram of Oriented Gradients (HOG) and Local Binary Pattern (LBP) are good descriptor for brain MR image retrieval. But there are many challenges facing in medical application. An empirical study of the impact of increasing bins number in the HOG descriptor concluded that larger the number is more accurate the descriptor is. In fact this is due to the reduction of orientations range that each bin covers. Despite the efficiency of augmenting the bins number, this technique has limited spatial support as the augmentation of the number of bins used leads to increase the histogram dimension. So here proposed a method called Histogram of Fuzzy Oriented Gradients (HFOG), in which a pixel can belong several bins with different degrees. The Local Binary Patterns feature extraction method is widely used for texture analysis; however, the original LBP is based on hard thresholding the neighborhood of each pixel. Therefore, texture representation with LBP is very sensitive to noise and cannot distinguish between a strong and a weak pattern. In this study, Fuzzy Local Binary Patterns was introduced to improve the original LBP.
Volume: 6
Issue: 1
Page: 8-17
Publish at: 2017-03-01

The Impact of Physical Education on Childhood Obesity in Ohio School Children: A Hierarchical Analysis

10.11591/ijphs.v6i1.6534
Nicholas V. Cascarelli Jr. , Karen H. Larwin
Obesity that starts in childhood or adolescence creates greater risk for adult health problems such as heart disease, arthritis, stroke, and cancer. The literature shows that childhood obesity increases most rapidly during the early elementary school years. The current investigation examines the issue of obesity using a systematic stratified random sample of Ohio schools that reported their 3rd grader’s BMI scores for the 2009-2010 school year to the Ohio Department of Health. The sample included 25 schools and 1,006 students. Those schools selected were contacted via phone to ask how many minutes per week schools allocated for physical education in grades K-3, and how many minutes per day was allotted for recess in grades K-3. The analysis also examined potential moderators including the percentage of students receiving free or reduced lunch and the school building academic performance designations as indicated on the Ohio Department of Education webpage. The results suggest that the model run at the student level accounts for approximately 1% of the variation in BMI; the model run at the school level was not a significant predictor of the variance.While the model included for Ohio students did not indicate a strong predictor for childhood obesity, schools can play a significant role in addressing the childhood obesity issue.
Volume: 6
Issue: 1
Page: 63-71
Publish at: 2017-03-01

Physical Activity and Obesity Indicators: National Cross Sectional Study on Lebanese Adults

10.11591/ijphs.v6i1.6525
Soha Hourani , Nagham Hamadeh , Mohamad Al-Iskandarani , Sarine El Daouk , Maha Hoteit
Association between higher levels of physical activity and lower rates of obesity has been shown. The aim is to assess the relation between the prevalence of physical activity and the Physical Activity Index (PAI) of 300 Lebanese healthy adults, with age, gender, occupation, body mass indices and waist circumferences (WC). The cutoff points of WC for both genders were determined using the values of Body Mass Index (BMI). A cross-sectional study using self-reported valid questionnaire was conducted randomly on 150 men and 150 women, between 18 and 74 years, from Beirut region. Association between variables was performed using chi2, T-Test and ANOVA. Linear regression determined the WC cutoffs based on BMI. 22% of the population was obese with WC mean level of 92.47±14.4cm (87.71±14.4 cm for women and 97.24±12.96 cm for men). The prevalence of physical activity was 34% in overall population (27% in women and 40% in men).There was no significant association between BMI values and PAI (p< 0.085 for men and p< 0.300 for women). However there was an inverse association between WC values and PAI in both genders (p<0.043 in men and p< 0.036 in women). Linear regression showed WC cut-off point in Lebanese women with BMI ≥25 kg/m2 and ≥30 kg/m2 of 86 cm and 100 cm respectively, whereas for men it was 92.12 cm and 105 cm respectively. The prevalence of physical activity in Beirut is low with differences among genders. The highest physical activity index is associated with the decreased values of waist circumference.
Volume: 6
Issue: 1
Page: 1-6
Publish at: 2017-03-01

The Level of Malondialdehyde in People Exposed to Air Pollution

10.11591/ijphs.v6i1.6539
Aguscik Aguscik , Ridwan Ikob , Sumitro Adi Putra
Air pollution cannot be avoided by people especially those living in big cities.  Rubber factories and landfill sites are two examples of activities that can trigger air pollution. H2S gas produced from rubber factories and landfill sites can create unpleasant smells and air contamination and increase free radicals in environment. This study was to assess the level of oxidative stress in people living near rubber factories and landfill sites. This was cross-sectional study involving 60 people as the study sample. The level of H2S gas was measured to determine the presence of air pollution. Blood collected from vena mediana cubiti was drawn to determine the level of malondialdehyde (MDA) as a marker of oxidative stress. Data obtained from this study were analyzed using independent t-test. The levels of H2S gas from landfill site were higher than those from rubber factory (0.482 ppm vs. 0.332 ppm). On the other hand, the average level of MDA in people living near the rubber factory was higher than that living near the landfill site (0.847 ± 0.269 nmol/mL vs 0.748 ± 0.253 nmol/mL). It was found no significant difference (p <0.05) in the average levels of MDA between people living near the rubber factory and those living near the landfill site.  There was no significant difference in the average levels of oxidative stress between people living near rubber factory and those living near landfill site.
Volume: 6
Issue: 1
Page: 96-100
Publish at: 2017-03-01

Spatial Patterns Associating Low Birth Weight with Environmental and Behavioral Factors

10.11591/ijphs.v6i1.6530
Donal Donal , Hartono Hartono , Mohammad Hakimi , Ova Emilia
Low birth weight (LBW) is a significant public health problem in the world. It was estimated globally by the World Health Organization (WHO) that prevalence of LBW was 15% of all births. In Murung Raya district LBW cases remain high. This paper aimed to identify and discuss the relationship between environmental risk factors with LBW in Murung Raya.A spatial analysis was conducted with 150 women as the total participantswho were recruited through the incidence data in 2013-2014. The questionnaires, medical records, and geographic data were measured by Stata software, ArcGis, SatScan, and Geoda. The study results indicated there was significant correlation between health behavior and environmental variables with the strength of external neighborhood effect across LBW risk factors. More intense clustering of high values (hot spots) was found through the spatial analysis showing that most of the cases were located near the defined buffer zone. This research demonstrates that the spatial pattern analysis provided greater statistical power to detect an effect that was not apparent in the previous epidemiology studies.
Volume: 6
Issue: 1
Page: 33-44
Publish at: 2017-03-01

Needs Assesment of Adolescent Health Services

10.11591/ijphs.v6i1.6535
Khoiriyah Isni , Lina Handayani
Health problems surround the adolescent rises everytime, yet it does unexcelled with their awareness or knowledge about that problems. The adolescent health service that are poorly accesced by the adolescent become the indicator that proves that the adolescent health services are not fully known and utilized yet. The assesment of adolesccent health services need has to be done so that it can be fully understand by the helper, target and stakeholder. This study aimed to analyse the adolescent health service need in Karang Bendo, Banguntapan, Bantul, Yogyakarta, Indonesia. The study was conducted in 2016 using cross-sectional approach. The results revealed that the level of adolsecent’s knowledge are still relatively poor: reproductive health knowledge (44.1%), HIV/AIDS (41.2%), smoke (50%), drugs (58.8%), and healthy lifestyle () (47.1%). The majority of respondents said that they need health services about reproduction health (94.1%), HIV/AIDS (91.2%), smoke (91.2%), drugs (88.2%) and healthy lifestyle (91.2%).
Volume: 6
Issue: 1
Page: 72-77
Publish at: 2017-03-01

Client Satisfaction towards Quality of Health Services: An Assessment at Primary Healthcare of District Gujranwala

10.11591/ijphs.v6i1.6526
Kauser Aftab Khan , Shahzad Ali Khan , Zubia Qureshi , Moazzam Ali Khan , Fouzia Nadeem Gill , Mudassar Mushtaq Jawad Abbasi
This survey designed to evaluate the satisfaction level and the factors that affect the patient satisfaction regarding health care delivery services with the aim to improve the services in the primary health care settings of Gujranwala. A Cross Sectional Study done on randomly selected patients attending the basic health units of Gujranwala, with more than18 years of age. Pretested structured "Liker scale questionnaire" was used for data collection. Out of total respondents, 62 (41.3%) clients were satisfied with the services provided by the basic health units of Gujranwala. The factors identified to determine patient satisfaction were accessibility of services, behavior of staff, health education, level of cleanliness, drug availability and miscellaneous services. Not a single ranked area of satisfaction noticed. Client’s occupation and income had significant relationship with the patient satisfaction level. Gender, age, and education of clients were not contributing factors; they not affect the client satisfaction level.Less than half clients were satisfied with the services provided by the basic health units. Management of health facilities needs to improve the services.
Volume: 6
Issue: 1
Page: 7-12
Publish at: 2017-03-01
1 2 3
...
1896 1897
Show 1490 of 1897

Discover Our Library

Embark on a journey through our expansive collection of articles and let curiosity lead your path to innovation.

Explore Now
Library 3D Ilustration