Abstract:Radon 222 released from rocks contribute to the level of radiation in human body. The stratigraphy of West Java, which is dominated by granite, has a high level of radon. The result of the study in Padalarang shows that the highest dose of radon is 24 Bq/kg and the lowest 17 Bq/kg. The alpha rays may affect the Superoxide Dismutase (SOD) level. The research is conducted on all men and women in the age of 30 to 70 living in Padalarang district who met the inclusion criteria, with good general health condition, being original inhabitant since birth, not suffering from chronic systemic infectious diseases, and willing to participate in the research by completing the informed consent. Sample is taken by using consecutive sampling. Blood sample is taken as much as 2 cc/person by using a 2cc syringe, which is then inserted into venoject tube containing heparin. Antioxidant activity in the blood plasma is examined by using SOD Kit. The average of SOD level is 3.56 ui/ml in Highland (Masigit Mountain) and 1.65ui/ml in lowland (Cipatat). The increase of SOD level of the people living in Highland is suspected to be the contribution of radon exposure contained in rocks and water.
AIM: To investigate demographic and preoperative factors increasing the risk of ametropia following transepithelial photorefractive keratectomy (transPRK) in myopia and myopic astigmatism.
METHODS: This retrospective cohort study included myopic eyes (-0.50 to -8.75 D) with or without astigmatism (up to 3.50 D) enrolled at Dr. Yap Eye Hospital Yogyakarta. TransPRK was performed using Technolaz 217z100 excimer laser. Subjects were clustered into ametropia and emmetropia group based on uncorrected distance visual acuities (UDVA) 3mo post-operatively. Multiple preoperative and intraoperative parameters were analyzed using Logistic regression to obtain their effect on ametropia risk following transPRK.
RESULTS: A total of 140 eyes of 87 consecutive subjects were studied. Prevalence of ametropia following transPRK was 20 (14.29%) eyes. Subjects in ametropia group were significantly older than the emmetropia group (31.80±14.23 vs 18.88±2.41, respectively; P<0.001). Bivariate Logistic regression analysis showed that older age (OR=1.23), higher preoperative spherical equivalent (>-6 D; OR=12.78), steeper anterior keratometric readings (Kmax>45 D and mean K>44 D; OR=4.28 and 4.35, respectively) increased the risk of ametropia following transPRK. Adjusted multivariate Logistic regression analysis showed that age was the strongest predictor for the incidence of ametropia following transPRK. Complications of transPRK were overcorrection, suspected posterior keratoectasia and accommodation insuffiency.
CONCLUSION: Older age can be the strongest factor for increasing ametropia risk following transPRK. Cut-off points of Kmax and mean K at 45 and 44 D respectively are proposed as the predictors for ametropia following transPRK.
Aims: In this study, we aimed to investigate the intercorrelations between tear film break up time, measured non-invasively using non-invasive keratographic break-up time (NIKBUT), higher order aberrations (HOA) and quality of vision (QoV) in pseudophakic patients.
Study Design: Cross-sectional.
Methods: Thirty-five pseudophakic aged patients aged 50 years or older, and 35 control phakic patients aged 17 to 23 years with corrected visual acuity of 20/20 were included in this study. All subjects underwent similar examination including QoV questionnaire, aberrometry to measure HOA, and NIKBUT. HOA was measured with the OPD-Scan/ ARK 10000 corneal analyzer (Nidek CO. Ltd), expressed as Root Mean Square (RMS) HOA and NIKBUT was assessed using non-invasive TF-Scan module Keratograph 5M (K5M), equipped with modified tear film scanning function (Oculus, Wetzlar, Germany). Statistical analysis was performed to find the correlation between NIKBUT, HOA and QoV.
Results: Patients in the pseudophakic group were significantly older (median age 66 vs. 20 years; P<0.01), had shorter NIKBUT (10.5 vs. 17.2; P<0.01), lower QoV score (1.63 vs. 0.68; P=0.04), and higher RMS HOA (0.5 vs. 0.26; P<0.01) compared to control group. NIKBUT was inversely correlated with RMS HOA (r = -0.19; p = 0.03) and RMS HOA was significantly correlated with QoV, even after adjustment for age and gender (r = -0.21; P0.04). NIKBUT <9.93s was correlated with lower QoV. The area under the curve was 0.81 (95% CI = 0.67 – 0.95, p = 0.012), and had 100% sensitivity and 61% specificity.
Conclusion: Shorter NIKBUT was correlated with greater HOA and greater HOA was correlated with lower QoV. NIKBUT value of shorter than 9.93s could potentially predict pseudophakic patients who will likely experience visual symptoms leading to decreased QoV; thus, the use of artificial tears might be beneficial.
Environment-friendly health based welfare is the basis for created dental health services. Waste generated in dental health services, especially in effluent dental radiography can have a significant impact on environmental pollution and increase pollution. Fantastic 4R (re-think, reduce, re-use, recycle) is an effluent waste material efficiency that can reduce costs, time and energy as well as innovative innovations in their recycling. Fantastic 4R aims to create an eco-friendly green dentistry to realize a healthy environmental quality, be it physical, chemical, biological, or social that allows for the health degree of human resources. Efforts to "Green" both practitioners, governments and patients are a form of implementation of new strategies that lead to eco-consiousness that supports and maintains health. Together in realizing "go green" and protect the earth from environmental pollution for a better future.
This study aims to explain further about accounting information systems and serve as reference material for teaching with the e-learning method. This research method is a literature study, analysis of learning needs, development of teaching materials, and evaluation of the effectiveness of the developed teaching materials. Accounting information systems help organizations to collect, store, manipulate, and convey accounting information. This system helps managers to make the right decisions and make income statements more accurate. This system also helps managers to identify and control risks.
In this modern era, technology and information systems are very important in business. explore the relationship between technology, information systems, and organizational performance. The aim of this paper is to provide a better understanding of the role of information technology and systems in improving organizational performance and consider the challenges that may occur. The right methodology for analyzing the topic of technology, information system, and performance is to use a qualitative approach. Information technology and systems have become important components of organizational performance. These systems improve efficiency, communication, decision-making, innovation and more. However, they also present some challenges, including security risks, technical issues, costs and more. The suggestions from this research will be very useful for companies that want to improve performance through the use of technology and information systems.
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