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

29,939 Article Results

Decision-making style profiles of pre-service biology teachers in socio-scientific issues

10.11591/ijere.v10i3.21376
Marlina Ummas Genisa , Bambang Subali , Djukri Djukri , Habibi Habibi
This study aimed to describe the decision-making style regarding the socio-scientific issue (SSI) of pre-service Biology teachers in four regions of Indonesia as a guide in designing active, varied, and creative learning involving students in each learning session. Data were collected using a questionnaire to 514 participants and analyzed descriptively-quantitatively. The results showed that each student's decision-making style is influenced by cognitive dimensions and processes during learning. Analytical decision-making styles also have a positive effect on gender, grade, region, and university.
Volume: 10
Issue: 3
Page: 760-767
Publish at: 2021-09-01

Risk factors of leptospirosis incidence in agricultural area

10.11591/ijphs.v10i3.20858
Mitoriana Porusia , Annisa Fauziah Dwi Andari , Windi Wulandari , Duangruedee Chotklang
The rate of leptospirosis incidence in Boyolali regency, Indonesia, during 2017 was high and showing an increasing trend. According to Boyolali District Health Office the number of leptospirosis cases in 2017 was 34 cases. Factors related to leptospirosis in the agriculture area should be understood well to take the right measurements for leptospirosis control in a typical agricultural area. Several risk factors, such as personal hygiene, environmental sanitation, wound presence, occupation, are the factors of leptospirosis infection. This study aimed to determine the risk factors associated with the leptospirosis incidence in Boyolali regency, Indonesia. This research used an observational method with a case-control design. The total number of case sample was 33 people, and the control sample were 99 people (ratio 1:3) with matched by a living area. Data collection were carried out with interviews using a questionnaire to respondents related to personal hygiene, environmental sanitation, wound presence and work as a farmer. The data were tested using logistic regression. Most of the case respondents work as a farmer and worker. The results showed that the risk factors associated with leptospirosis incidence were a wound presence (OR:17.014;95% CI:5.487-52.761) and worked as a farmer (OR:5,186; 95%CI:1.682-15.989). Unrelated variables were bad personal hygiene (95%CI:0.647-7.885) and environmental sanitation (95%CI:0.793-8.773). The dominant risk factor that causes Leptospirosis was wound presences and occupation as a farmer. Therefore people who work mostly touch the water like farmers must cover any wound on feet and keep personal and environmental sanitation to prevent infection.
Volume: 10
Issue: 3
Page: 574-580
Publish at: 2021-09-01

Gender of transformational school principals and teachers’ innovative behavior

10.11591/ijere.v10i3.21448
Aziah Ismail , Nor Shafrin Ahmad , Rahimi Che Aman
The purpose of this paper is to examine the different levels of transformational leadership between male and female principals and their relationships with teachers' Innovative Work Behavior (IWB) in Malaysian secondary schools. In total, 477 teachers from various secondary schools were randomly selected as respondents (218 are working under female principals, while 259 of them are under male principals). This study revealed that the respondents agree that male principals practice transformational leadership higher than female principals. However, the female principals were highly influential on the teachers’ IWB compared to their male counterparts. This study provides a glimpse of the teachers' innovative behavior improvement resulted from transformational leadership by male and female school principals.
Volume: 10
Issue: 3
Page: 747-752
Publish at: 2021-09-01

Family planning instructor’s performance in the toddler family development program

10.11591/ijphs.v10i3.20868
Simon Sumanjoyo Hutagalung , Dedy Hermawan , Amir Husin
Family planning instructors are vital in implementing the toddler family development program considering their function. This article aims: i) Analyze the performance of family planning instructors in the implementation of the toddler family development program/bina keluarga balita (BKB); ii) Analyse the factors supporting and inhibiting the effectiveness of the performance of family planning instructors in the community. This research used quantitative methods through survey instruments with a population of all family planning instructors which implementing toddler family development program. The pandemic situation has made the data collection process carried out by online questionnaires with Google Forms application. In order to obtain the required data, data collection was carried out through a questionnaire with a sample of 84 respondents. Data analysis was performed through descriptive statistical analysis using MS.Excel and SPSS. The data analysis concluded that the performance of family planning instructors in managing the program is in the good category. In the process approach, effectiveness is shown from the fulfillment of these performance variables in the implementation of the program, so that by looking at the categories in the cumulative analysis that are in the good category.
Volume: 10
Issue: 3
Page: 608-616
Publish at: 2021-09-01

A review on the plant secondary metabolites with special context with North East India

10.11591/ijaas.v10.i3.pp245-250
Devi Ritismita , Manash Pratim Sarma
Extracting phytochemicals or phytocompounds for the upliftment of general health and sustainability is one of the greatest needs of the millennium. Plants have immense quality in regard to secondary metabolites although not required for general growth and development yet are very much necessary for forming a protective gear and maintaining homeostasis. With their immense diversity in curing various diseases, these plants' secondary metabolites therefore must be put forth and given much importance in generation and production from the root level to the mission worldwide. Along with the increasing cases of failure in the usage of chemotherapeutic drugs and their utilities, the implementation of secondary metabolites for their various medicinal characteristic in therapeutic cases are also increasing in demand. With the increasing demand for Ayurveda treatment and the popularity of the mass, it can be positively taken up as a means of earning capital and making self-sustaining. North-Eastern states of India in this regard are a vital source of income and also a media to generate and bring indigenous products to the world.
Volume: 10
Issue: 3
Page: 245-250
Publish at: 2021-09-01

Work readiness during COVID-19 among taxibike online drivers in Samarinda, Indonesia

10.11591/ijphs.v10i3.20870
Dina Lusiana Setyowati , Swandari Paramita , Riza Hayati Ifroh , Tanti Asrianti , Efi Fitriani , Wahnadita Rahman
COVID-19 caused a pandemic around the world, including in Indonesia. This greatly affected the informal business sector, such as online taxibike drivers. The success of this program to control the spread of COVID-19 is greatly influenced by knowledge, attitudes, and actions in the community. The purpose of this study was to identify behavioral factors during the pandemic. An online survey was conducted with 100 online taxibike drivers using a structured questionnaire and Google Forms. Data were analyzed using the Spearman rank test with CI of 95%. Although most online taxibike drivers have sufficient knowledge about COVID-19, some drivers had important misconceptions about COVID-19, namely that COVID-19 is not contagious, weak immune resistance may cause them to contract COVID-19, and it is highly unlikely that they will contract COVID-19 when leaving the house without wearing a mask, and believing that handwashing with soap and using hand sanitizer will not prevent COVID-19. To address these misconceptions, interventions should be targeted to online taxibike drivers to increase their health education and literacy regarding the urgency of preventing COVID-19. It is also important to consider incorporating both interpersonal approaches and conventional and digital-based groups when encouraging changes in their attitudes and practices towards COVID-19.
Volume: 10
Issue: 3
Page: 617-628
Publish at: 2021-09-01

Big transfer learning for automated skin cancer classification

10.11591/ijeecs.v23.i3.pp1611-1619
Zinah Mohsin Arkah , Dalya S. Al-Dulaimi , Ahlam R. Khekan
Skin cancer is an example of the most dangerous disease. Early diagnosis of skin cancer can save many people’s lives. Manual classification methods are time-consuming and costly. Deep learning has been proposed for the automated classification of skin cancer. Although deep learning showed impressive performance in several medical imaging tasks, it requires a big number of images to achieve a good performance. The skin cancer classification task suffers from providing deep learning with sufficient data due to the expensive annotation process and required experts. One of the most used solutions is transfer learning of pre-trained models of the ImageNet dataset. However, the learned features of pre-trained models are different from skin cancer image features. To end this, we introduce a novel approach of transfer learning by training the pre-trained models of the ImageNet (VGG, GoogleNet, and ResNet50) on a large number of unlabelled skin cancer images, first. We then train them on a small number of labeled skin images. Our experimental results proved that the proposed method is efficient by achieving an accuracy of 84% with ResNet50 when directly trained with a small number of labeled skin and 93.7% when trained with the proposed approach.
Volume: 23
Issue: 3
Page: 1611-1619
Publish at: 2021-09-01

Gender differences in anger expressions among secondary students

10.11591/ijere.v10i3.21384
Nor Shafrin Ahmad , Rahimi Che Aman , Ahmad Zamri Khairani
Individuals with choleric temperaments easily get angry and can be problematic if not expressed appropriately. The purpose of this study was to identify gender differences in anger expressions among secondary school students. Respondents were secondary school students in four states in the Northern region of Malaysia. A total of 3348 students were involved, including 1,800 males and 1,548 females. Respondents aged between 13 and 16 were randomly selected from 20 secondary schools. Descriptive analyses and t-test were used to identify anger expressions among secondary school students. Findings showed that 780 respondents agreed that they are hot-tempered, while 2568 others did not. From the 780 hot-tempered respondents, 370 are males and 410 are females. A total of 3160 from the 3348 respondents did not meet their school counsellors for counselling sessions when they had anger problems. The findings also revealed a significant difference in four types of anger expressions between male and female students. They were in aggressive, verbal, intrinsic anger expression, and intrinsic anger control. The findings revealed that school counsellors need to equip students with specific, creative, and innovative interventions to cope with different anger expression.
Volume: 10
Issue: 3
Page: 1100-1106
Publish at: 2021-09-01

Enhanced Flip-FBMC visible light communication model

10.11591/ijeecs.v23.i3.pp1783-1793
Abdullah Ali Qasim , Husam Noman Mohammedali , M. F. L. Abdullah , R. Talib , Haidar Zaeer Dhaam
VLC technology is one of the most promising technologies in the generations of communications, especially 5G after the significant development of optical semiconductors, specific laser diode, and the use of FBMC modulation in the system. DCO-FBMC modulation surpasses all the disadvantages of DCO-OFDM modulation techniques, as it is characterized by high speed and large bandwidth, but this technique consumes high energy when converting a real bipolar signal into a positive unipolar by adding DC-bias. Besides the challenge of illumination distribution indoor typical room, where the drop of the illumination appears in the middle of the room, besides the power consumption. The Flip-FBMC technique was proposed to solve this challenge, which helps convert the bipolar signal into unipolar by separating the positive part from the negative part and converting it into positive and merging it using Multiplexer and then sending the signal. Besides this, the authors presented in this paper a new lighting model with 5 luminescent units, using LD instead of LED. The Flip-FBMC profile gave better energy savings and BER performance than DCO-FBMC, besides a lighting model that covers dark areas and gives high SNR for the blind area and give save power 13.14% from consumed power.
Volume: 23
Issue: 3
Page: 1783-1793
Publish at: 2021-09-01

Review of protection aspects of microgrid devices

10.11591/ijaas.v10.i3.pp212-226
Ashoke Kumar Basu
A microgrid is required to provide reliable, quality and efficient supply of both electricity and heat demands to its customers when operates either in autonomous or in grid-connected modes. In this context, it is most important to address a comprehensive protection scheme of the microgrid suiting both the modes of operations. This paper concentrates on the impacts of various devices, like distributed energy resources (DERs), transformers, switches, microgrid topology, communication type, grounding type, to name a few, on the microgrid protection systems. The paper reviewes previous works for the various aspects, like characteristics, construction, of these devices in the light of protection. This review-work is useful for future research in the field of microgrid protection as well as in the selection of its devices.
Volume: 10
Issue: 3
Page: 212-226
Publish at: 2021-09-01

Fuzzy membership functions tuning for speed controller of induction motor drive: performance improvement

10.11591/ijeecs.v23.i3.pp1258-1270
Nabil Farah , Md Hairul Nizam Talib , Zulkifilie Bin Ibrahim , Qazwan Abdullah , Ömer Aydoğdu , Jurifa Mat Lazi , Zm Isa
Fuzzy logic controller (FLC) has gained high interest in the field of speed control of machine drives in both academic and industrial communities. This is due to the features of FLC of handling non-linearity and variations. FLC system consists of three main elements: scaling factors (SFs), membership functions (MFs), and rule-base. Fuzzy MFs can be designed with different types and sizes. For induction motor (IM) speed control, (3x3), (5x5) and (7x7) MFs are the most used MFs sizes, and normally designed based on symmetrical distribution. However, changing the width and peak position of MFs design enhance the performance. In this paper, tuning of MFs of FLC speed control of IM drives is considered. Considering (3x3), (5x5) and (7x7) MFs sizes, the widths and peak positions of these MFs are asymmetrically distributed to improve the performance of IM drive. Based on these MFs sizes, the widths and peak positions are moved toward the origin (zero), negative and positive side that produces a controller less sensitive to the small error variations. Based on simulation and performance evaluations, improvement of 5% in settling time (Ts), 0.5% in rise time and 20% of steady-state improvement achieved with the tuned MFs compared to original MFs.
Volume: 23
Issue: 3
Page: 1258-1270
Publish at: 2021-09-01

Vulnerability and risk assessment for operating system (OS) with framework STRIDE: comparison between VulnOS and Vulnix

10.11591/ijeecs.v23.i3.pp1643-1653
Adityas Widjajarto , Muharman Lubis , Vreseliana Ayuningtyas
The rapid development of information technology has made security become extremely. Apart from easy access, there are also threats to vulnerabilities, with the number of cyber-attacks in 2019 showed a total of 1,494,281 around the world issued by the national cyber and crypto agency (BSSN) honeynet project. Thus, vulnerability analysis should be conducted to prepare worst case scenario by anticipating with proper strategy for responding the attacks. Actually, vulnerability is a system or design weakness that is used when an intruder executes commands, accesses unauthorized data, and carries out denial of service attacks. The study was performed using the AlienVault software as the vulnerability assessment. The results were analysed by the formula of risk estimation equal to the number of vulnerability found related to the threat. Meanwhile, threat is obtained from analysis of sample walkthroughs, as a reference for frequent exploitation. The risk estimation result indicate the 73 (seventy three) for the highest score of 5 (five) type risks identified while later on, it is used for re-analyzing based on the spoofing, tampering, repudiation, information disclosure, denial of service, and elevation of prvilege (STRIDE) framework that indicated the network function does not accommodate the existing types of risk namely spoofing.
Volume: 23
Issue: 3
Page: 1643-1653
Publish at: 2021-09-01

The spirituality and spiritual care of clinical nurses in Indonesia

10.11591/ijphs.v10i3.20906
Rosnancy Renolita Sinaga , Donald Loffie Muntu , Sedia Simbolon , Sri Susanty
This study aimed to investigate associated factors of spirituality and spiritual care in clinical nurses in Indonesia. Cross-sectional descriptive and correlational research designs were used in this study. Purposive sampling was applied among 204 participants in private hospitals, Medan and Bandung, Indonesia. The questionnaires consisted of demographic and characteristics information and the spirituality and spiritual care rating scale (SSCRS). Mann Whitney test was used to investigate associated factors of spirituality and spiritual care in clinical nurses in Indonesia. This study found that there was statistically significant between department with spirituality (p=0.017), receiving spiritual care lessons during nurse training with spiritual care (p=0.032), and receiving spiritual care lessons during nurse training (p=0.013) and educational background with nurses’ perception of spirituality and spiritual care (p=0.040). Receiving spiritual care lessons during nurse training, and educational background were statistically significant with spirituality and spiritual care in clinical nurses in Indonesia. The findings of this study provide information for clinical nurses and generally of nurses to understand the perception of spirituality and spiritual care in hospital for care patient in a hospital in Indonesia. It is also suggested that appropriate strategies to improve knowledge and perception of spirituality and spiritual care should be developed shortly.
Volume: 10
Issue: 3
Page: 551-557
Publish at: 2021-09-01

Multilinear principal component analysis for iris biometric system

10.11591/ijeecs.v23.i3.pp1458-1469
Chetana Kamlaskar , Aditya Abhyankar
Iris biometric modality possesses inherent characteristics which make the iris recognition system highly reliable and noninvasive. Nowadays, research in this area is challenging compact template size and fast verification algorithms. Special efforts have been employed to minimize the size of the extracted features without degrading the performance of the iris recognition system. In response, we propose an improved feature fusion approach based on multilinear subspace learning to analyze Iris recognition. This approach consists of four stages. In the first stage, the eye image is segmented to extract the iris region. In the second step, wavelet packet decomposition is conducted to extract features of the iris image, since good time and frequency resolutions can be provided simultaneously by the wavelet packet decomposition. In the next step, all decomposed nodes or packets are arranged as a 3rd order tensor rather than a long vector, in which feature fusion is directly implemented with multilinear principal component analysis (MPCA). This approach provides a more compact or useful low-dimensional representation directly from the original tensorial representation. Finally, a discriminative tensor feature selection mechanism and classification strategy are applied to iris recognition problem. The obtained results indicate the usefulness of MPCA to select discriminative features and fuse them effectively. The experimental results reveal that the proposed tensor-based MPCA approach achieved a competitive matching performance on the SDUMLA-HMT Iris database with an adequate acceptable rate.
Volume: 23
Issue: 3
Page: 1458-1469
Publish at: 2021-09-01

Automatic cerebrovascular segmentation methods-a review

10.11591/ijai.v10.i3.pp576-583
Fatma Taher , Neema Prakash
Cerebrovascular diseases are one of the serious causes for the increase in mortality rate in the world which affect the blood vessels and blood supply to the brain. In order, diagnose and study the abnormalities in the cerebrovascular system, accurate segmentation methods can be used. The shape, direction and distribution of blood vessels can be studied using automatic segmentation. This will help the doctors to envisage the cerebrovascular system. Due to the complex shape and topology, automatic segmentation is still a challenge to the clinicians. In this paper, some of the latest approaches used for segmentation of magnetic resonance angiography images are explained. Some of such methods are deep convolutional neural network (CNN), 3dimentional-CNN (3D-CNN) and 3D U-Net. Finally, these methods are compared for evaluating their performance. 3D U-Net is the better performer among the described methods.
Volume: 10
Issue: 3
Page: 576-583
Publish at: 2021-09-01
1 2 3
...
1995 1996
Show 924 of 1996

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