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31,456 Article Results

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

Using Neuro-Fuzzy Technique to Classify and Predict Electrical Engineering Students’ Achievement Upon Graduation Based on Mathematics Competency

10.11591/ijeecs.v5.i3.pp684-690
Usamah bin Mat , Norlida Buniyamin
This paper discusses the findings of a case study that uses neuro-fuzzy tool to classify and predict Electrical engineering students graduation achievement based on mathematics competency. In this study, achievement upon graduation and mathematics grades were classified as the key performance index. It's based on longitudinal progress and cross validation model on two mathematics subjects, semesters’ performance, and graduation achievement of electrical students. The outcomes indicated that there is a correlation between mathematics competency with electrical engineering performance, and it’s interesting to note that weak and satisfactory students in mathematics are not able to achieve first class upon graduation, and yet there is small percentage of excellent and good students in mathematics couldn’t graduate with high achievement. The findings conclude that the combination of statistical analysis and machine learning can help us to extract knowledge and enable university management to help low achievers at early stage. It’s hoped that the findings can help faculty management to review mathematics curriculum with respect to increasing range of engineering field.
Volume: 5
Issue: 3
Page: 684-690
Publish at: 2017-03-01

Evaluation of Lactation Promotion as Part of Baby Friendly Hospital

10.11591/ijphs.v6i1.6531
Arsani Lailatul Inayah , Lina Handayani , Azidanti Saufi
Decrease of maternal and infant mortality as well as increasing of the exclusive breastfeeding are major public health priorities in Indonesia. In decreasing the maternal and infant mortality, the government developed a program for the community as Baby Friendly Hospital (BFH) to prevent the effects, to support, and to promote breastfeeding. PKU Muhammadiyah hospital in Yogyakarta was one of the BFH program managers. The purpose of this study was to determine the breastfeeding promotion activities as part of BFH at PKU Muhammadiyah Hospital in Yogyakarta.This was a qualitative descriptive study. The findings of this study were inputs consisting of 1) the knowledge and skills to better convey information indicates the quality of human resources. 2) promotion of the  policies for all workers to reach the goal. 3) financial promotion is supported by the operating system in the hospital. 4) supporting facility to promote lactation leaflets, posters, ANC class, a breastfeeding counselor and nursing areas. Implementation of lactation promotion was conducted in accordance with program planning of BFH. 
Volume: 6
Issue: 1
Page: 45-50
Publish at: 2017-03-01

Comparison of Deposition Methods of ZnO Thin Film on Flexible Substrate

10.11591/ijeecs.v5.i3.pp536-541
A. A.M. Idris , R. Arsat , M. K. Ahmad , F. Sidek
This paper reports the effect of the different deposition methods towards the ZnO nanostructure crystal quality and film thickness on the polyimide substrate. The ZnO film has been deposited by using the spray pyrolysis technique, sol-gel and RF Sputtering. Different methods give a different nanostructure of the ZnO thin film. Sol gel methods, results of nanoflowers ZnO thin film with the thickness of thin film is 600nm. It also produces the best of the piezoelectric effect in term of electrical performance, which is 5.0 V and 12 MHz of frequency which is higher than other frequency obtained by spray pyrolysis and RF sputtering.
Volume: 5
Issue: 3
Page: 536-541
Publish at: 2017-03-01

A Study on V-Shaped Microstrip Patch MIMO Antenna

10.11591/ijeecs.v5.i3.pp606-611
Charles MacWright Thomas , Huda A. Majid , Zuhairiah Zainal Abidin , Samsul Haimi Dahlan , Mohamad Kamal A. Rahim , Raimi Dewan
A study on the V-shaped microstrip patch antenna for multiple-input multiple-output (MIMO) communication system based on the antenna orientation is performed. First the microstrip patch antenna operating at 2.45 GHz is calculated and simulated. Next, multiple element of antennas for MIMO system is simulated and discussed. V-shaped with 45 degree slanted inward and outward is studied. The antenna properties is analyzed and compact antenna design is determined based on the simulation results. The results shows the gap between antennas can be optimized to 1 mm while maintaining low mutual coupling. The gain of the MIMO antenna is 8.42 dBi. The simulated return losses, together with the radiation patterns, are presented and discussed.
Volume: 5
Issue: 3
Page: 606-611
Publish at: 2017-03-01

Control Strategy for PWM Voltage Source Converter Using Fuzzy Logic for Adjustable Speed DC Motor

10.11591/ijpeds.v8.i1.pp51-58
Saidah Baisa , Bambang Purwahyudi , Kuspijani Kuspijani
The speed of a DC motor can be controlled by varying the voltage applied to the terminal. It can be done by controlling a PWM-VSC (PWM-Voltage Source Converter). This paper analyzes an control strategy of PWM-VSC using fuzzy logic to obtain varying DC voltage and according to the DC motor speed as desired. The control strategy of PWM-VSC directly using the switch variable in dq rotating reference frame as input variables. The fuzzy logic controller proposes to get a DC voltage variation stable by adjusting amplitudo of the network current. The simulation Fuzzy Logic Controller results show that the design fuzzy logic produce a good dynamic of DC voltage and DC motor speed without overshoot. On the network, Total Harmonic Distortion less than 5 % and unity power factor.
Volume: 8
Issue: 1
Page: 51-58
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

Portable Pico Linear Generator Design with Different Magnet Shapes for Wave Energy Conversion System

10.11591/ijpeds.v8.i1.pp360-366
Nursyamimi Shahabudin , Taib Ibrahim , Naily Akmal Mohd Zamri
There are abundant of wave energy converter technologies available to convert wave energy into useable energy. However, most of them are huge and suitable for large application. Thus, this paper aimed to propose portable pico generator designs for small scale application. Investigation on the performance of designs with varying halbach magnet shapes was mainly focused and discussed. Two designs of different magnet shape i.e. triangular and trapezoid were proposed. Open-circuit simulation and optimization results were obtained using Finite Element Method. From the results, it was found out that Trapezoid Magnet Design produced better performance and lower material cost compared to another proposed design, Triangular Magnet as well as conventional Rectangular Magnet shape.
Volume: 8
Issue: 1
Page: 360-366
Publish at: 2017-03-01

A New Compensation Control Strategy for Grid-connected Wind Turbine and Fuel Cell Inverters in a Microgrid

10.11591/ijpeds.v8.i1.pp272-278
A. Naderipour , A. A. Mohd Zin , M. H. Habibuddin , M. Moradi , M. Miveh , H. N. Afrouzi
The use of a new control method for grid-connected inverters for reducing the output current harmonic distortion in a wide range of grid-connected distributed generation (DG) applications, including wind turbine (WT) and fuel cell (FC) inverters is proposed in this paper. The control method designed to eliminate main harmonics in a microgrid (MG) and between MG and point of common coupling (PCC) and responsible for the correction of the system unbalance. Another advantage of the proposed control method is that it can be easily adopted into the DG control system without the installation of extra hardware. The proposed control method is comprised of the synchronous reference frame method (SRF). Results from the proposed control method are provided to show the feasibility of the proposed approach.
Volume: 8
Issue: 1
Page: 272-278
Publish at: 2017-03-01

Web-Based Yorùbá Numeral Translation System

10.11591/ijai.v5.i4.pp127-134
Abayomi Olusola Agbeyangi , Safiriyu Eludiora , Popoola O. A
Yorùbá numerals have been seen as one of the most interesting but quite complicated numeral system. In this paper we present the development of a web-based English to Yorùbá numeral translation system. The system translates English numbers both in figure and text to its standard Yorùbá form. The computational processes underlying both numerals were used to formulate the model for the work. Unified Modeling language (UML) and Automata theory was used for the system design and specification. The designed system was implemented using Google Web App Engine with support for python. The result of the system evaluation using mean opinion score approach shows that the system gives a recall of 100% on all the output considered.
Volume: 5
Issue: 4
Page: 127-134
Publish at: 2017-02-13

Parser Extraction of Triples in Unstructured Text

10.11591/ijai.v5.i4.pp143-148
Shaun D'Souza
The web contains vast repositories of unstructured text. We investigate the opportunity for building a knowledge graph from these text sources. We generate a set of triples which can be used in knowledge gathering and integration. We define the architecture of a language compiler for processing subject-predicate-object triples using the OpenNLP parser. We implement a depth-first search traversal on the POS tagged syntactic tree appending predicate and object information. A parser enables higher precision and higher recall extractions of syntactic relationships across conjunction boundaries. We are able to extract 2-2.5 times the correct extractions of ReVerb. The extractions are used in a variety of semantic web applications and question answering. We verify extraction of 50,000 triples on the ClueWeb dataset.
Volume: 5
Issue: 4
Page: 143-148
Publish at: 2017-02-13
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