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ANALISIS KARAKTERISTIK IDIOSYNCRATIC RISK PADA ABNORMAL RETURN SAHAM BERDASARKAN CAPITAL ASSET PRICING MODEL OCTAVIANUS, DANIEL
JURNAL ILMIAH MAHASISWA MANAJEMEN Vol 1, No 5 (2012)
Publisher : Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.443 KB) | DOI: 10.33508/jumma.v1i5.304

Abstract

The purpose of the investors in the stock transaction is an optimal return. The difference between the rate of expected return by investor on stock returns is abnormal return. In general, all the investment will be at risk. Risk is divided into two systematic risk and unsystematic risk. Systematic risk is the risk that can not be diversified is beta. The purpose of this study was to determine size, trading volume activity, and market to book ratio of the abnormal return. Sampling technique used in this study was purposive sampling and obtained as many as 38 companies. The analysis technique used is multiple regression analysis using eviews program. The results showed that the size and trading volume of activity have a significant positive effect on abnormal return while the variable market to book ratio of the abnormal return no effect.
Alcoholic Hand Sanitizer on the Incident of Contact Dermatitis in Health Workers Rianto, Louis; Tanzia, Sherren; Agatha, Priscilla Clara; Celine, Celine; Octavianus, Daniel
Indonesian Journal of Global Health Research Vol 6 No 3 (2024): Indonesian Journal of Global Health Research
Publisher : GLOBAL HEALTH SCIENCE GROUP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37287/ijghr.v6i3.3115

Abstract

The COVID-19 pandemic has increased the frequency of using alcohol-based hand sanitizers, especially among health workers. This increase in the frequency of using hand sanitizers increases the incidence of contact dermatitis. The presence of allergens and reduced fat and water content in the skin causes contact dermatitis. This research was conducted to review more deeply how much influence the use of hand sanitizers has on the incidence of contact dermatitis for health workers in the COVID-19 era and to provide advice on the use of additional materials as well as the selection of materials and procedures for using hand sanitizers to reduce the incidence of contact dermatitis. A literature search was conducted from journal articles with a time span of 2012-2022 using databases in the form of Pubmed, Ebsco, Google Scholar, Hindawi, Medline and Science Direct (65 articles). We included 65 research articles that met the inclusion and exclusion criteria by analyzing the abstract and full text through tables together. Research shows that the use of alcohol-based hand sanitizers with high frequency and contains allergenic ingredients triggers the occurrence of contact dermatitis in health workers. So the use of additional ingredients such as moisturizers and the selection of alcohol-based hand sanitizer materials must be considered to reduce the incidence of contact dermatitis.