Impacts of South Korea’s Political Events in 2017 Towards KRX 100

The capital market is a means for investors to invest in the long term and diversify, spread ownership of the company, and even create a healthy business climate through information disclosure. Political phenomena and events that occur in a country greatly affect the sensitivity of the capital market and can affect investors' decisions in investing in the capital market, because the political situation of a country affects the country's economic conditions. This study was determined of abnormal return and trading volume activity of South Korea’s political events. It has a ten windows period, amounts of samples were 98 companies of KRX 100 by purposive sampling technique. Analysis techniques used one-sample t-test and paired difference test. The result showed there is an abnormal return, a significant negative abnormal return difference, and no significant trading volume activity before and after South Korea’s political events. It means South Korea’s market is said to be efficient in a strong form because it is not influenced by political information and news that occurred in 2017

Stroke Prediction Using Machine Learning Method with Extreme Gradient Boosting Algorithm

Based on data obtained from WHO, stroke is a disease that ranks as the second most deadly disease. The cause of a stroke is when a blood vessel is hit or ruptured, resulting in a part of the brain not getting the blood supply that carries the oxygen it needs, leading to death. By utilizing technology in the health sciences, especially in the health sector, machine learning models can adjust and make it easier for users to predict certain diseases. Previous studies have had problems with low accuracy when used in healthcare. The purpose of this research is to increase accuracy by proposing the application of one of the ensemble learning algorithms, namely the Xtreme Gradient Boosting algorithm. This stroke prediction research uses the Xtreme Gradient Boosting Algorithm; the application of this method with split data Training data and 70/30 test data, 70% of the training data is 3582, 30% of the test data is 1536, and the results are 96% accuracy with these results having good results. This study increase accuracy in predicting stroke cases and get better accuracy than previous studies

The Knowledge Level of Primary Care Physicians in Surabaya Primary Health Care Center Concering Hepatitis B

Background: One of physician's functions at primary health care center (PHC) is the ability to diagnose some diseases especially that contribute to high morbidity and mortality. Until now, hepatitis B virus infection has become a major health problem worldwide. The aim of this study was to identify the knowledge level of primary care physicians concerning hepatitis B in Surabaya. Method: The present study was a cross-sectional study that performed by investigators through interviews with primary care physicians in Surabaya to fill questionnaires for measuring their knowledge level. The questionnaires were modified from questionnaire survey in Tur Key performed by Peksen et al. It reflected the level of knowledge of the physicians including their comprehension, application and analysis. Validity and reliability test were performed on the Result of those questionnaires. The knowledge level was categorized as follows: > 75 (excellent), 70.0–74.9 (very high), 65.0–69.9 (high), 60.0–64.9 (medium), 55.0–59.9 (moderate), 47.5–54.9 (nearly moderate), 40.0-47.4 (less moderate), < 40 (low). Results: Based on validity test, we obtained 14 items of 17 question items with correlation coefficient 0.287–0.561 and alpha reliability index 0.639; therefore, the instrument can be used to measure the knowledge level. The results of mean score conversion included comprehension, which was 84.878 ± 16.499 (excellent category); application, which was 47.556 ± 31.870 (nearly moderate category) and analysis, which was 14.634 ± 35.562 (low category). Statistically, the mean value of the knowledge level scale, which was the combination of comprehension, application and analysis, was obtained at 49.023 ± 19.085 including the nearly moderate category. Conclusion: By using a valid and reliable instrument, the knowledge level of primary care physician in Surabaya concerning hepatitis B can be categorized as nearly moderate

Brand dan Arsitektur Dalam Tuntutan Pasar Global

Abstract : Architecture as a function container reminds us that image is never out of a use. A strong image is able to form a strong brand as a representation of use. When brand meets architecture, the challenge lies in the economic context, competition in presenting profits. The Principles of Economics challenge the originality of quality architectural designs. However, there is a tendency for similar visual concepts to emerge due to the power of well-known brands in the world of architecture with phenomenal characteristics. Through literature study, this paper will formulate theoretical ideas in responding to these challenges to find the formulation of the initial design basis that makes the design become original and have good quality. Keywords: brand, image, architecture, economic principles Abstrak : Arsitektur sebagai wadah fungsi menjadi pengingat bahwa citra tidak pernah lepas dari guna. Citra yang kuat mampu membentuk brand yang kokoh sebagai representasi guna. Ketika Brand bertemu dengan Arsitektur maka tantangannya terletak pada konteks ekonomi, yakni persaingan dalam menghadirkan keuntungan. Prinsip Ekonomi menantang desain perancangan arsitektur yang orisinil dan berkualitas. Namun muncul kecenderungan konsep visual yang hampir serupa akibat kekuatan brand ternama di kelas arsitektur dengan ciri khas yang fenomenal. Melalui studi kepustakaan, penulisan ini akan merumuskan gagasan-gagasan teoretis dalam menjawab tantangan tersebut sehingga menemukan rumusan landasan perancangan awal yang menjadikan desain dapat orisinil dan berkualitas. Kata Kunci : brand, citra, arsitektur, prinsip ekonom

Karakteristik Dan Tipologi Urban Sprawl Pada Kecamatan Sidorejo

Pertumbuhan pinggiran kota (urban sprawl) menjadi alternatif memecah kepadatan Kota Salatiga, pada era 20 tahunan yang lalu. Kenyataannya saat ini, keadaan ini menjadi permasalahan baru terutama terkait inefisiensi penggunaan lahan, terjadinya kemacetan akibat perencanaan sistem transportasi yang kurang terpadu, masalah kepadatan penduduk, serta terjadinya pengelompokan komunitas permukiman. Terkait dengan hal itu perlu penelitian tentang karakteristik dan tingkat/tipologi urban sprawl pada Kota Salatiga, khususnya Kecamatan Sidorejo yang merupakan kawasan urban sprawl pertama kali di Kota Salatiga, sehingga hasilnya bisa dijadikan sebagai bahan rujukan untuk arah kebijakan pembangunan Kota Salatiga selanjutnya. Penelitian ini menggunakan metode kuantitatif dengan teknik analisis datanya menggunakan analisis statistik deskriptif, analisis spatial dan analisis skoring. Hasil penelitian menunjukkan bahwa terdapat 3 kelurahan yang teridentifikasi urban sprawl di Kecamatan Sidorejo Salatiga, yaitu Kelurahan Blotongan, Kelurahan Kauman Kidul dan Kelurahan Pulutan, dimana tingkat sprawl tertinggi terdapat pada Kelurahan Pulutan dan tingkat sprawl terendah terdapat pada kelurahan Blotongan

Clinical impact of endemic NDM-producing Klebsiella pneumoniae in intensive care units of the national referral hospital in Jakarta, Indonesia

OBJECTIVE: A prospective observational study was performed to assess the epidemiology and clinical impact of carbapenem-non-susceptible Klebsiella pneumoniae (CNKP) in intensive care units (ICUs) of the national referral hospital in Jakarta, Indonesia. MATERIALS/METHODS: Adult patients consecutively hospitalized for > 48 h in two ICUs of the national referral hospital were included from April until October 2013 and from April until August 2014. K. pneumoniae from clinical cultures and standardized screening of rectum and throat on admission, discharge and weekly if hospitalized > 7 days were collected. Environmental niches and healthcare workers (HCWs) were also screened. Susceptibility was determined phenotypically and the presence of carbapenemase genes by PCR. Raman spectroscopy as well as multiple-locus variable number tandem repeat analysis (MLVA) were used for typing. RESULTS: Twenty-two out of 412 (5.3%) patients carried CNKP on admission and 37/390 (9.5%) acquired CNKP during ICU stay. The acquisition rate was 24.7/1000 patient-days at risk. One out of 31 (3.2%) environmental isolates was a CNKP. None of the HCWs carried CNKP. Acquisition of CNKP was associated with longer ICU stay (adjusted Hazard Ratio: 2.32 [CI99: 1.35-3.68]). ICU survival was lower among patients with CNKP compared to patients with carbapenem-susceptible K. pneumoniae (aHR 2.57, p = 0.005). Ninety-six of the 100 (96%) CNKP isolates carried a carbapenemase gene, predominantly blaNDM. Raman typing revealed three major clusters among 48 Raman types identified, whereas MLVA distinguished six major clusters among a total of 30 different genotypes. CONCLUSIONS: NDM-producing CNKP are introduced into these ICUs and some strains expand clonally among patients and the environment, resulting in endemic CNKP. CNKP acquisition was associated with prolonged ICU stay and may affect ICU survival. TRIAL REGISTRATION: The study was registered at Netherlands Trial Register http://www.trialregister.nl. Candidate number: 23527, NTR number: NTR5541, NL number: NL5425 (https://www.trialregister.nl/trial/5424), Retrospectively registered: NTR: 22 December 2015

Investigation of Ground Motion and Local Site Characteristics of the 2018 Lombok Earthquake Sequence

In 2018, Lombok Island was hit by a major earthquake sequence. The Indonesia Meteorological, Climatological, and Geophysics Agency (BMKG) reported that the Lombok Island earthquake sequence started with an Mw 6.4 foreshock, followed by an Mw 6.8 main shock, aftershocks of Mw 5.8 and Mw 6.2, and a second mainshock of Mw 6.9 in the eastern part of Lombok. This study presents an investigation of strong motion characteristics using the Indonesia National Strong Motion Network (INSMN) data from two accelerometer stations, the MASE station (at Praya Lombok International Airport, Lombok Island, Vs30 = 770 m/s, SB site class) and TWSI station (in Sumbawa Island, Vs30 = 1152 m/s, SB site class). Signal analysis techniques using a power spectrum via fast Fourier transform, wavelet transform and horizontal-to-vertical spectral ratio (HVSR) have been applied in this study. There are significant differences in the results (e.g., predominant frequencies, wavelets, H/V ratios, and frequencies at peak H/V ratio) for the MASE and TWSI stations, highlighting the importance of actual Vs30 profiles and the limitation of the site class system in providing necessary predictive information. The variation of the peak ground acceleration (PGA) values and the spectral amplitudes could only be explained by hypothesizing the effect of the volcanic structure of Mount Rinjani on the strong motion waveforms

Epidemiology and characterisation of carbapenem-non-susceptible Pseudomonas aeruginosa in a large intensive care unit in Jakarta, Indonesia

The aim of this study was to describe the epidemiology and clinical impact of carbapenem-non-susceptible Pseudomonas aeruginosa (CNPA) in intensive care units (ICUs) of the national refer

High-Risk International Clones of Carbapenem-Nonsusceptible Pseudomonas aeruginosa Endemic to Indonesian Intensive Care Units

Infection control effectiveness evaluations require detailed epidemiological and microbiological data. We analyzed the genomic profiles of carbapenem-nonsusceptible Pseudomonas aeruginosa (CNPA) strains collected from two intensive care units (ICUs) in the national referral hospital in Jakarta, Indonesia, where a multifaceted infection control intervention was applied. We used clinical data combined with whole-genome sequencing (WGS) of systematically collected CNPA to infer the transmission dynamics of CNPA strains and to characterize their resistome. We found that the number of CNPA transmissions and acquisitions by patients was highly variable over time but that, overall, the rates were not significantly reduced by the intervention. Environmental sources were involved in these transmissions and acquisitions. Four high-risk international CNPA clones (ST235, ST823, ST375, and ST446) dominated, but the distribution of these clones changed significantly after the intervention was implemented. Using resistome analysis, carbapenem resistance was explained by the presence of various carbapenemase-encoding genes (blaGES-5, blaVIM-2-8, and blaIMP-1-7-43) and by mutations within the porin OprD. Our results reveal for the first time the dynamics of P. aeruginosa antimicrobial resistance (AMR) profiles in Indonesia and additionally show the utility of WGS in combination with clinical data to evaluate the impact of an infection control intervention. (This study has been registered at www.trialregister.nl under registration no. NTR5541).IMPORTANCE In low-to-middle-income countries such as Indonesia, work in intensive care units (ICUs) can be hampered by lack of resources. Conducting large epidemiological studies in such settings using genomic tools is rather challenging. Still, we were able to systematically study the transmissions of carbapenem-nonsusceptible strains of P. aeruginosa (CNPA) within and between ICUs, before and after an infection control intervention. Our data show the importance of the broad dissemination of the internationally recognized CNPA clones, the relevance of environmental reservoirs, and the mixed effects of the implemented intervention; it led to a profound change in the clonal make-up of CNPA, but it did not reduce the patients' risk of CNPA acquisitions. Thus, CNPA epidemiology in Indonesian ICUs is part of a global expansion of multiple CNPA clones that remains difficult to control by infection prevention measures