181 research outputs found
Pesan-pesan Dakwah Dalam Bahasa Tutur
Forwarding of The da'wah messages in oral language. Oral language in this context is transmitted, trasacted and transformated from relevan values. Even if the message of da'wah in oral language is culture frame that eksist in community, but its posite not outside of principles: qulan sadidan, Balighan, ma'rufan, kariman, layyinan, dab qoulan maysuran, that the message od da'wah can be manual by people dan followed it, because da'I is a available person for people followed it all
Sick Building Syndrome in Apartment Buildings in Jordan
The present study was conducted to investigate the concept of sick building syndrome which has recently been receiving attention to improve the indoor environmental quality in housing projects in Jordan. Apartment buildings were selected in three locations in Jordan; Amman, Irbid and Zarqa to represent different climatic regions in Jordan. The methods of enquiries were based on observation(physical architectural and detailed analysis of the buildings),calculations of the environmental factors which affect indoor air quality and healthy environment and questionnaires designed and distributed to investigate occupants’ perception in terms of health and building conditions. The findings revealed that there were significant differences among geographical locations of apartment buildings in Jordan. Zarqa had the most severe condition because of the crowdness in the urban setting and the extreme weather conditions. Moreover, building physical configuration and attributes such as window sizes and types, envelope design, location of the apartment in the building, orientation and building layout had significant effects on the concept of the sick building syndrome
HbA1c, Total IgE, and TNFα as Blood Markers for Long Exposure of Traffic-related Fine Particles: A Study on Mechanics at Vehicle Test Stations
Particulate matter such as hydrocarbons, sulfur oxides (SOx), and nitrogen oxides (NOx) dominate air pollutants released from vehicle emission and are notorious for their adverse health effects. High concentrations of traffic-related air pollutants in urban areas are sometimes neglected by society despite being harmful to human health. This study aimed to discover the blood markers of traffic-related particulatematter in humans. The study collected traffic-related particulate matter 2.5 (PM2.5) data from 32 mechanics working in vehicle emission test stations in Pulo Gadung and Ujung Menteng, Jakarta. Every measurement was made according to the Environmental Protection Agency Isopropil Alcohol 10A (EPA IP 10 A) method. Bloodand urine samples were collected from 43 mechanics as an exposed group and 23 non-exposed workers as a control. Profile lipid, glycated haemoglobin (HbA1c), total Imunoglobin (IgE), calcium, and Tumor Necrosis Factor-α (TNFα) in blood were measured in all 66 samples. Urinary 1-hydroxypyrene (1-OHP) was detected in 21exposed group samples using a liquid chromatography fluorescence detector. As a result, the mean concentration of PM2.5 from mechanics was 306.91 ± 99.19 µg/m3. Independent t-test results of the biochemical analysis from blood examination within those groups showed a significant difference in several parameters such as triglyceride (p = 0.005), HbA1c NGSP (p = 0.01), HbA1c IFFC (p = 0.01), total IgE (p = 0.02), calcium (p = 0.03), and TNFα (p = 0.00). Total cholesterol and personal PM2.5 exposure showed a moderate correlation with r = 0.355 (p = 0.046). Urinary 1-OHP mean concentration from the exposed group was 21.61 ± 10 µg/L. In conclusion, HbA1c, IgE, and TNFα can be considered as a blood marker for long exposure to PM2.5, while further study is needed to determine the possibility of using 1-OHP as non-invasive method to detect the particulate matter exposure in humans, particularly from traffic-related sources.
Keywords: Biomarker, Fine Particles, Tnfα, 1-OHP, Vehicle Emissio
Efficient error correcting scheme for chaos shift keying signals
An effective error-correction scheme based on normalized correlation for a non coherent chaos communication system with no redundancy bits is proposed in this paper. A modified logistic map is used in the proposed scheme for generating two sequences, one for every data bit value, in a manner that the initial value of the next chaotic sequence is set by the second value of the present chaotic sequence of the similar symbol. This arrangement, thus, has the creation of successive chaotic sequences with identical chaotic dynamics for error correction purpose. The detection symbol is performed prior to correction, on the basis of the suboptimal receiver which anchors on the computation of the shortest distance existing between the received sequence and the modified logistic map’s chaotic trajectory. The results of the simulation reveal noticeable Eb/No improvement by the proposed scheme over the prior to the error- correcting scheme with the improvement increasing whenever there is increase in the number of sequence N. Prior to the error-correcting scheme when N=8, a gain of 1.3 dB is accomplished in Eb/No at 10-3 bit error probability. On the basis of normalized correlation, the most efficient point in our proposed error correction scheme is the absence of any redundant bits needed with minimum delay procedure, in contrast to earlier method that was based on suboptimal method detection and correction. Such performance would render the scheme good candidate for applications requiring high rates of data transmission
Analysis of the Risk Factors Associated with Coronary Heart Disease for Cement Factory Workers
Cardiovascular disease is the leading cause of death globally each year. The study was conducted to determine the risk factors for coronary heart disease (CHD) based on the results of a treadmill test data. This cross-sectional study included 173 employees from medical check-up (MCU). The results showed that the risk of acquiring CHD had statistically significant associations with age, hypertension, total cholesterol, Low Density lipoprotein (LDL), diabetes mellitus, smoking, body mass index (BMI), shift, and stress based on a treadmill test, but CHD risk was not found to have an association with High Density Lipprotein (HDL). After conducting logistic regression, seven risk factors of CHD were found: age, hypertension, total cholesterol, diabetes mellitus,smoking, BMI, and stress.
Keywords: Risk Factors, Coronary Heart Disease, Treadmill tes
Effects of Shift Work on Chronic Fatigue Symptoms among Automotive Part Workers
Shift work is associated with negative effects on sleep and performance as well as with chronic fatigue. The goal of this cross-sectional study was to explore chronic fatigue symptoms among automotive part workers. Chronic fatigue symptoms were measured using the Piper Fatigue Scale (PFS) questionnaire. Fatigue measurementresults showed that about 50.7% of die-casting part shift workers had symptoms of mild fatigue, and 49.3% had symptoms of severe fatigue. The risk factors significantly related to fatigue symptoms include job design, overtime, physical workload, commute time, and health status. This study shows that shift work might affectfatigue symptoms among manufacturing workers. It seems necessary to implement ergonomic continuous improvement programs for more appropriate shift work as well as reducing working hours.
Keywords: Fatigue; ergonomic; manufacturing; shift workers; PFS
Impoliteness in EFL Complaints: Exploring Its Intentions and Motivating Factors
The present study investigated intentions and motivating factors of using impoliteness in interlanguage complaints by EFL learners. Empirical data were elicited by means of oral discourse completion tasks and questionnaires from 42 Indonesian learners of English. Post-structured interviews were conducted to obtain the intentions and reasons of deploying impoliteness in the complaints. The results reveal that impoliteness is triggered by three general motivating factors; speaker-related factors, target person-related factors, and contextual factors. A number of intentions of deploying impoliteness are found, and they suggest that impoliteness is a means to an end rather than an end itself
Design of smart wireless changeover for continuous electric current feeding from power sources of variable capacities
Electric power has become a vital element for life today. Despite this importance, electric power consumers in Iraq suffer from the problem of noncontinuity and daily electric power supply interruption. This problem led to the use of various sources of electric power as an alternative to compensate for the shortage of electric power provided by the Iraqi national grid. In this work, a smart wireless changeover device is designed using wireless sensor networks technology aiming to solve problem caused by the multiplicity of power sources received at home and governmental buildings in Iraq by controlling operation of some electrical devices (which consume high current) in the home or workplace automatically when changing source of electricity from one to another. This solution will help to ensure the continuity of electric current feeding from power sources of variable capacities, also, to rationalize power consumption by assigning an operation priority to electric devices. Furthermore, a statistical measurement as a case study was performed in a building with a total power consumption of 160.8 KW/h. The result showed that the device functions effectively and it is capable of achieving an average saving in power of about 50% to 86% depending on the applied priorities and case study scenario
Particulate Matter and Subjective Respiratory Health Effect Measurements in Palembang during Forest Fire Episode in October 2015
Particulate matter is a mixture of solid particles and liquid droplets that can gather in the atmosphere. Wild land fires are uncontrollable land fires that consume combustible plants and emit significant amounts of carbon dioxide, methane, non-methane volatile organic compounds, nitrogen oxides, and particulates. This research was conducted to measure the fine particulate matter (PM2.5) pollution during October 2015 that was caused by a September forest fire in Palembang, one of the cities most affected by wildfires in Indonesia. Sampling was based on the United States Environmental Protection Agency (US EPA) IP 10-A Method updated by SKC Ltd and was conducted every day for a week for six hours each day, divided into morning and eveningsequences. Coarse and fine particles were filtered using a Sioutas Impactor and a Leland Legacy personal pump with a flow rate of 9 L/min. Quartz fiber filters were placed in every stage of the impactor to collect the particles. Particulate matter (PM) concentration was measured using the gravimetric method. The weighing wasdone using a Mettler Toledo MX5 microbalance. Questionnaires were used to gather information on health problems from 63 adults and 54 children from Palembang. The mean concentrations of coarse and fine particulate matter (PM10 and PM2.5) in Palembang during the measurement periods were determined to be 818.78 µg/m3 and 672.99 µg/m3 respectively. The peak measurements for the 24-hour mean concentrations ofPM10 and PM2.5on October 21, 2015 were 1,369.34µg/m3 and 1,246.92 µg/m3 respectively. Both PM groups exceeded the 24-hour standards for PM10 and PM2.5concentrations outlined in the WHO Air Quality Guidelines and the US EPA National Ambient Air Quality Standards. Based on the results of the questionnaires,more than two-thirds of both children and adults experienced sneezing, nasal congestion, influenza, and dry cough during the forest fire episode. In conclusion, the particle pollution in Palembang city that was caused by the forest fire was hazardous to human health, and further research is needed to explore the health effects resulting from forest fire pollution that may affect Palembang’s citizens.
Keywords: PM2.5, forest fire, Palembang, respiratory effect
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