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31,377 Article Results

Risky teenager behavior in a vocational high school

10.11591/ijere.v8i3.20241
Suci Musvita Ayu , Marsiana Wibowo , Liena Sofiana
Adolescence is a very complex period. Various teen problems haunt when they grow up to become adults. The same teenagers successfully face the challenges of their development so that they are free from a variety of risky behaviors. However, some of them also smoke, consume alcohol, have free sex, commit violence, and use drugs. This research is a qualitative study with a phenomenological approach in which researchers explore and try some risky behaviors in health and factors that influence and how adolescents in vocational high schools end up committing some risky behavior. The results of the study show that teens who do not have risky behavior and who do have some risk behaviors have different understandings related to the impact of these behaviors. People around teenagers influence how teenagers will behave. These influential people can cause teenagers to take risky behavior, such as family problems, get bad examples from parents, family members, peers, and idols. Factors that influence adolescents to end up committing risky behavior are the understanding of the negative effects of risk behavior. The various causes of influential people include parents, peers, religious leaders, idols, perceived benefits, self-control, and intention. The internal and external factors of adolescents determine whether the teenager will do or not risky behavior. Strong collaboration between internal and external factors shapes behavior which is not risky in adolescents, and vice versa.
Volume: 8
Issue: 3
Page: 470-475
Publish at: 2019-09-01

An exploratory study of users’ experiences with e-participation: a case study of Malaysia

10.11591/ijeecs.v15.i3.pp1138-1143
Nasrah Hassan Basri , Wan Adilah Wan Adnan , Hanif Baharin
The need to encourage citizens’ adoption of e-participation services has prompted an expanding enthusiasm for the evaluation of e-participation websites. The achievement of e-participation websites depends intensely on how well it is perceived by the users. E-participation is a relatively new approach, so it is important to evaluate it deliberately, in order to comprehend it better, obtain more knowledge about it and distinguish the preferences and advantages it offers, and not to overlook its disadvantages so that we can improve it. Concerning evaluation, many researchers have concentrated on infrastructure and technical issues without giving more attention to user experience as one of the core elements impacting the success or failure of e-participation websites. This paper evaluated e-participation module that located in Malaysia e-government website by utilizing think-aloud method.  Think-aloud was being utilized to gauge the perceptions of citizens in their use of e-participation.
Volume: 15
Issue: 3
Page: 1138-1143
Publish at: 2019-09-01

A review of optimization techniques applied to solve unit commitment problem in microgrid

10.11591/ijeecs.v15.i3.pp1161-1169
Karthik N , A K Parvathy , Arul Rajagopalan , S Baskar
Unit Commitment (UC) is an optimization problem used to find out the least cost dispatch of obtainable generation resources to meet up an expected electric power demand over a certain time perspective under generational, technical and ecological constraints. In the midst of the momentous increase of non-conventional energy sources incorporation into the power system networks, effects caused by these system alterations to the UC are dynamically being studied and examined by worldwide researchers. This paper presents a literature review of application of several optimization algorithms to elucidate the UC problem in microgrids. Lastly a few basic challenges arising from the new optimization approaches in microgrids are addressed.
Volume: 15
Issue: 3
Page: 1161-1169
Publish at: 2019-09-01

Container characteristics and dengue hemorrhagic fever incidence

10.11591/ijphs.v8i3.18066
Wanti Wanti , Ririh Yudhastuti , Hari Basuki Notobroto , Sri Subekti , Agustina Agustina , Christine Ekawati
The condition of Kupang City has low rainfall, low rainy days and includes dry areas, but it turns out that Kupang City had always the highest incidence rate in Nusa Tenggara Timur Province and exceed the national average. This study will analyze the relationship of container characteristic to the incidence of DHF in Kupang City. This study was an observational analytic study with a case control design. The study conducted in 25 villages with total sample 500 people of DHF patients and non DHF patients in Kupang City. The research variables are number of container, water height, water volume, water pH, container type, container location, container material, container lid, and container color which were collected by doing direct observation and measuring the object of study. The collected data was processed and analyzed statistically using Independent T test and Chi Square test. The container conditions related to the incidence of DHF were the amount of container, water pH, and type of container. Whereas the container conditions that were not related to the incidence of DHF are water level, water volume, container location, container material, container cover and container color.
Volume: 8
Issue: 3
Page: 314-319
Publish at: 2019-09-01

Implications of physicians and nurses’ professional satisfaction on patient care

10.11591/ijphs.v8i3.20238
Wilson Kipkirui Aruasa , Linus Kipkorir Chirchir , Stanley Kulei Chebon
The patient outcomes of a health organization depend on the knowledge, skills and motivation of its individual employees. Therefore, it is important for health care employers to motivate their workers in order to meet the desired outcomes. It is widely acknowledged that health workers who are motivated facilitate the desired patient outcomes. This illustrates how the levels of physicians’ and nurses’ professional satisfaction influences the health care outcomes for patients based on a study of the Moi Teaching and Referral Hospital (MTRH). Descriptive quantitative research design was used. Data was collected using a structured questionnaire issued to a stratified group of 82 Physicians and 220 Nurses. All the completed questionnaires were entered into IBM SPSS 21.0 statistical software and data analysed for descriptive statistics. The results were presented in tables and figures. The study was powered to 95% confidence interval. With regards to effects of general practitioners’ and nurses’ work satisfaction on patient services, the study revealed that work associated with the respondents’ position allows contributions to be made to the hospital, the profession and to own sense of achievement. Furthermore, the study findings showed that praise received for work well done translates to improved job productivity and that the medicine/nursing practice allows autonomous professional decisions to be made which in turn promotes high levels of clinical competence. Based on these findings, the study concludes that health care practitioners’ work satisfaction has implications on patient care.
Volume: 8
Issue: 3
Page: 300-306
Publish at: 2019-09-01

Concept of minimizing the response time for reducing dynamic data redundancy in cloud computing

10.11591/ijeecs.v15.i3.pp1597-1602
Wan Nurazieelin Wan Abd Manan , Mohamad Aizi Salamat
Reduction of dynamic data redundancy in cloud computing is one of the best ways to maintain the storage capacity from being fully utilized. Cloud storage is a part of cloud computing technology which holds a high demand in any organization for reducing the cost of purchasing and maintaining storage infrastructures. Increase in the number of users will require a larger storage capacity for storing their data. Reduction of dynamic data redundancy allows service providers to be energy savvy and minimize maintenance cost. Recent researches focus more on static data nature despite its limited capability as compared to dynamic data characteristic in cloud storage. Therefore, this paper theoretically compares various techniques for reduction of redundant dynamic data in cloud computing and suggests the best technique for completing the task in terms of response time.
Volume: 15
Issue: 3
Page: 1597-1602
Publish at: 2019-09-01

What is critical thinking? A longitudinal study with teacher candidates

10.11591/ijere.v8i3.20254
Serap Yılmaz Özelçi , Gürbüz Çalışkan
Critical thinking skills that enhance the ability of individuals to understand and make sense of the world and events and situations around them are one of the foremost research areas in the educational system of various countries. As a critical thinking individual, decisions made by the teacher in his/her class, the activities he/she has performed and the explicit and implicit messages given by him/her to the class are clearly observed by the students. It is believed that the situation of teachers’ having critical thinking skills and critical thinking personality effects on students' perceptions and achievements about critical thinking. In this context, the aim of the research is to determine the perceptions of the teacher candidates about critical thinking and to observe the changes in these perceptions over time. Interviews were held with 11 prospective teachers for two times for 4 years and their thoughts on critical thinking were examined. According to the findings obtained, the thoughts of the teacher candidates regarding the critical thinking do not change over time but they are not seen enough. Teacher candidates make decisions with emotional references and they are reluctant to inquire and research.
Volume: 8
Issue: 3
Page: 495-509
Publish at: 2019-09-01

Aperture coupling rectangular slotted circular ring microstrip patch antenna

10.11591/ijeecs.v15.i3.pp1419-1427
Abil Fathir Majid , Yulisdin Mukhlis
This paper designed circular ring microstrip patch antenna using aperture coupling feeding techniques with rectangular slots on the patch for LTE. The use of aperture coupling feeding techniques were expected to optimize antenna parameters performance. The addition of rectangular slots on the patch produced multi resonant frequencies than the original characteristics. The simulated optimized design generated 1.8 GHz, 2.1 GHz, and 2.72 GHz with Return Loss value -22.3683 dB, -18.8133 dB, -24.3451 dB and VSWR value 1.1648, 1.259, 1.1291. Meanwhile, the measurement results of fabricated antenna showed the frequency produced by the antenna was 1.8 GHz with value of Return Loss and VSWR -18.257 dB and 1.278 in a reference value of VSWR < 2 and Return Loss < -10 dB.
Volume: 15
Issue: 3
Page: 1419-1427
Publish at: 2019-09-01

Detection of lipoprotein(a)- cholesterol expression in Bangladeshi adults with dyslipidemia

10.11591/ijphs.v8i3.20060
Puja Biswas , Fakir Md Yunus , Tareq Hossan , Sohel Ahmed
Lipoprotein(a)-cholesterol (Lp(a)-C), a low-density lipoprotein (LDL)-like particle is considered as a risk factor for cardiovascular diseases (CVDs). We aimed to investigate the association of Lp(a)-C expression with dyslipidemia among the Bangladeshi population and assess the relationship with cardiovascular risks. In this cross-sectional comparative study, a total of 180 urban males and females between ages 19-65 years were included who were enrolled in a hospital setting of Bangladesh. Participants were selected based on their total cholesterol (TC) level≥200 mg/dl, high density lipoprotein (HDL)-C<40 mg/dl, LDL-C≥140 mg/dl, and triacylglycerol (TG)≥150 mg/dl regardless of race, religion and socioeconomic status. Venous blood was collected from all participants and analyzed. Further, participants’ socio-demographics and body mass index (BMI) were collected. Expression of Lp(a)-C was detected in 22.86% patients with desirable levels (<14 mg/dL) of serum Lp(a)-C. This study suggests that the prevalence of hyperlipidemia and hypertriglyceridemia is high in the Bangladeshi population. Males were found to have lower HDL-C and higher TG than females. and, similar to other ethnic groups, a negative correlation between BMI and HDL-C was found in this population. In addition, Lp(a)-C had a positive correlation with TG which may recommend routine clinical investigation of Lp(a)-C as a biomarker for CVD risk.
Volume: 8
Issue: 3
Page: 287-293
Publish at: 2019-09-01

Retrospective investigation of enteric illnesses in pet animals

10.11591/ijphs.v8i3.14834
Mohamed O Ahmed , Hiam R Elnageh , Abojala Elhashmi Ammar , Emadeddin Abdulkarim , Ali Alareid , Murad A Hiblu , Yousef M Abouzeed
Recording and analysis of data are key elements to understand the epidemiology of various infectious and zoonotic diseases such as enteric pathogens and conditions. In this study, the clinical records of Alhelal Alazraq veterinary clinic in Tripoli were investigated for enteric diseases and illnesses in cats and dogs during the period of 2010–2015. The diagnostic and therapeutic guidelines within the Libyan veterinary system were also assessed and discussed based on the retrieved information and records. A total of 859 cases representing 528 (61%) from cats and 331 (39%) from dogs were retrieved and analysed using descriptive analysis. The cases were originated from five major areas from the center of Tripoli and the surrounding areas. Of these, 835/859 (97%) cases adopted antimicrobial based therapies and administered various antibiotic classes mainly and respectively using penicillin (652; 78%) and trimethoprim-sulfamethoxazole (229; 27%). The current study is the first retrospective investigation that analysed clinical and medical information from a major veterinary clinic in Libya. Diagnostic and therapeutic guidelines in the veterinary settings in Libya should be carefully reviewed and addressed. Retrospective studies and research programmes that monitor and investigate the occurrences of zoonotic and emerging pathogens particularly in relation to antimicrobial resistance are warranted in the Libyan health and medical systems
Volume: 8
Issue: 3
Page: 320-325
Publish at: 2019-09-01

An assessment of risk of iodine deficiency among pregnant women in Sarawak, Malaysia

10.11591/ijphs.v8i3.20254
Lim Kuang Kuay , Tan Beng Chin , Mohd Shaiful Azlan Kassim , Nur Azna Mahmud , Ruhaya Salle , Cheong Siew Man , Norazizah Ibrahim Wong , Chan Ying Ying , Tahir Aris
Previous findings from a state-wide Iodine Deficiency Disorders (IDD) study among pregnant women (PW) in Sarawak indicated that PW are at risk of IDD and further assessment is needed. This paper describes the methodology used in conducting this study for an assessment of risk of iodine deficiency among pregnant women in Sarawak, Malaysia. A total of 30 maternal child health care clinics (MCHCs) were selected using probability proportional to population size (PPS) sampling technique.  The PW sample size was calculated based on 95% confidence interval (CI), relative precision of 5%, design effect of 2, anticipated IDD prevalence of  65.0% and non-response rate of 20%. Thus, the total sample size required was 750 (25 respondents per selected MCHC). The WHO Expanded Programme on Immunization (EPI) surveys approach was used to randomly select the first respondent and subsequent respondents were chosen until the required number of PW was met. The required data were obtained through: face-to-face interviews (socio-demographic and food frequency questionnaire), clinical assessments (thyroid size, and hyper/hypothyroidism) and biochemical analysis (urine and blood serum). A total of 677 PW responded in the study with a response rate of 90.2%. Majority of the PW were at second gravida, aged 25-29 years old and of Malay ethnicity. The methodology used in this study was based on international guidelines which may provide state’s estimates. All the necessary steps were taken into consideration to ensure valid and reliable findings on current iodine status among PW.
Volume: 8
Issue: 3
Page: 307-313
Publish at: 2019-09-01

Modified brute force algorithm to solve the closest pair of points problem based on dynamic warping

10.11591/ijeecs.v15.i3.pp1629-1636
Rhowel M. Dellosa , Arnel C Fajardo , Ruji P. Medina
This paper introduces an algorithm to solve the closest pair of points problem in a 2D plane based on dynamic warping. The algorithm computes all the distances between the set of points P(x, y) and a reference point R(i, j), records all the result in a grid and finally determines the minimum distance using schematic steps. Results show that the algorithm of finding the closest pair of points has achieved less number of comparisons in determining the closest pair of points compared with the brute force and divide-and-conquer methods of the closest pair of points. 
Volume: 15
Issue: 3
Page: 1629-1636
Publish at: 2019-09-01

Identifying factors in estimation of Body Mass Index : cohesion between environmental factors and physical activity

10.11591/ijphs.v8i3.18286
Md. Nofayer Haque , Muhammad Mahady Hasan , Azizur Rahman
Body Mass Index (BMI) is a good indicator of nutritional status in a population. It can be considered as an indicator of overall health condition. Beside Genetic aspects the BMI level is affected by different factors, such as socio economic, environmental and physical activity level. This study investigated about the effects of different physical and environmental factors on the BMI level of a sample of 75 adults and fit a suitable ANN based model. The mean BMI was 23.8671±2.89217 kg/m2. The Pearson correlation, independent sample T-test, one-way ANOVA, ANN, regression analysis was used to extract the variables which significantly influenced the BMI. The statistical analysis showed that, despite the apparent association of BMI with physical activity level, it is influenced by several factors such as age, distance to bus stop, dieting, daily exercise, marital status, educational level and recreational facilities. It shows that daily exercise, recreational facility, education level has significant impact in estimation of Body Mass Index (BMI).
Volume: 8
Issue: 3
Page: 352-358
Publish at: 2019-09-01

Design of metal plate temperature sensor based on fiber bragg grating (FBG)

10.11591/ijeecs.v15.i3.pp1282-1289
Nani Fadzlina Naim , Nur Shahira Anuar , Suzi Seroja Sarnin , Norsuzila Yaa’cob
This paper presents the design and characterization for metal plate temperature sensor based on Fiber Bragg Grating (FBG). Five types of FBGs were used such as Acrylate FBG, Bare FBG, Bimetallic Acrylate FBG, Bimetallic Bare FBG and Ceramic FBG to determine the sensitivity on four different plates at 23℃ to 70℃, experimentally. The four different plates are Aluminium, Aluminium Coating, Zinc and Zinc Coating has been used because of their excellent thermal conductivity. Two metals which are Copper and Zinc have been chosen to design the Bimetallic Strips FBG due to the Coefficient Thermal Expansion (CTE) to improve their sensitivity. The results show that Ceramic FBG has been chosen as the best temperature sensor because it has the highest sensitivity compared to other FBGs with sensitivity value of 50.4 and 59.7 pm 16(℃)-1">  when in contact with Aluminium and Zinc plates, respectively. In addition, Aluminium and Zinc plates has been chosen as the most reliable metal plates where it can transfer heat efficiently due to high thermal conductive which is 237 W/mK and 116 W/mK thus it gives the highest sensitivity when measured using Bimetallic Acrylate, Bimetallic Bare and Ceramic FBG.
Volume: 15
Issue: 3
Page: 1282-1289
Publish at: 2019-09-01

Non-dominated sorting Harris’s hawk multi-objective optimizer based on reference point approach

10.11591/ijeecs.v15.i3.pp1603-1614
Shaymah Akram Yasear , Ku Ruhana Ku-Mahamud
A non-dominated sorting Harris’s hawk multi-objective optimizer (NDSHHMO) algorithm is presented in this paper. The algorithm is able to improve the population diversity, convergence of non-dominated solutions toward the Pareto front, and prevent the population from trapping into local optimal. This was achieved by integrating fast non-dominated sorting with the original Harris’s hawk multi-objective optimizer (HHMO).  Non-dominated sorting divides the objective space into levels based on fitness values and then selects non-dominated solutions to produce the next generation of hawks. A set of well-known multi-objective optimization problems has been used to evaluate the performance of the proposed NDSHHMO algorithm. The results of the NDSHHMO algorithm were verified against the results of an HHMO algorithm. Experimental results demonstrate the efficiency of the proposed NDSHHMO algorithm in terms of enhancing the ability of convergence toward the Pareto front and significantly improve the search ability of the HHMO.
Volume: 15
Issue: 3
Page: 1603-1614
Publish at: 2019-09-01
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