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All Journal Folia Medica Indonesiana The Indonesian Journal of Computer Science
Aung, Htet Htet
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Computer Science & IT Electrical & Electronics Engineering Engineering Other

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Acid Phosphatase and Zinc Tests Are Effective for Semen Examination and Identification to Prove Intercourse Yudianto, Ahmad; Wibowo, Ariyanto; Nuraini, Indah; Aung, Htet Htet
Folia Medica Indonesiana Vol. 56 No. 3 (2020): September
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.851 KB) | DOI: 10.20473/fmi.v56i3.24546

Abstract

The presence of spermatozoa in vagina is a definite sign of sexual intercourse. However, sometimes microscopic examination does not find spermatozoa or reveals a false negative result. This is influenced by many factors, including the absence of ejaculate in the vaginal canal. In addition, there are other factors such as oligo/azoospermia, vasectomy, degeneration of sperm due to time, incorrect sampling, and improper storage. Therefore, examination of the other components of the ejaculate, ie. the enzyme acid phosphatase, choline and spermin, is important. Compared with spermatozoa, the enzyme phosphatase, choline and spermin have lower evidentiary value because these three components are less specific. However, the level of phosphatase enzyme found in the vagina is much lower than phosphatase enzyme that comes from prostate gland. In this study, as many as 192 samples in the form of patches with sperm/semen stains were tested with acid phosphatase test and zinc test through direct and indirect examination. In the first method, washing was carried out on day 1, day 7, and month 3, and testing was carried out after each washing. In the second method, washing was carried out simultaneously and testing was carried out on day 1, day 7 and month 3. Washing was carried out using 7 types of detergent for each 4 patch samples, and washing using water as control. The results showed very low sensitivity (0.186) and very high specificity (100%). This showed that both tests had high specificity values. Acid phosphatase test specifically showed the presence of the enzyme phosphatase, while zinc test specifically showed the presence of zinc in semen. This phosphohydrolase-phosphatase enzyme is easily degraded due to external factors, including temperature, humidity, and chemicals, ie. the element SDS (Sodium Dodecyl Sulfate) that has the ability to cut enzymes. The weakness of the acid phosphatase test is that this enzyme is easily degraded, either partially or completely, due to external factors, such as temperature, humidity, heat, and the presence of chemicals.
Numerical Study on the Optical Properties of III-V Quaternary Compounds Aluminium Gallium Indium Phosphide Light Emitting Diode Aung, Htet Htet; May Su Hlaing; Tin Tin Hla
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.3997

Abstract

The research works the quaternary compounds of AlGaInP (Aluminium Gallium Indium Phosphide) LEDs that provide luminescence intensity in high-brightness LEDs. AlGaInP LEDs, which are direct bandgap semiconductors with green color emission and a wavelength ranging from 500 to 565 nm, are important in electronics display and liquid crystal backlight applications. Depend on carrier concentration, the desired colors and luminescence intensity, the mole fraction of the quaternary compound is changed and also the bandgap energy. The paper contributions the carrier distribution of holes and electrons, the density of states, and the fermi-dirac distribution function calculated. Based on the carrier concentration, luminescence intensity versus photon energy has been determined. These simulation results are presented using MATLAB simulation with theoretical approach.
Co-Authors Ahmad Yudianto Ariyanto Wibowo, Ariyanto Indah Nuraini, Indah May Su Hlaing Tin Tin Hla