Horizon Quantum Mechanics for spheroidal sources

We start investigating the extension of the Horizon Quantum Mechanics to the case of spheroidal sources. We first study the location of trapping surfaces in space-times resulting from an axial deformation of static isotropic systems, and show that the Misner-Sharp mass evaluated on the corresponding undeformed spherically symmetric space provides the correct gravitational radius to locate the horizon. We finally propose a way to determine the deformation parameter in the quantum theory.Comment: 14 pages, 1 figure, final version to appear in EP

KEPENTINGAN INDONESIA DALAM UPAYA PENGAMBILAN FIR (FLIGHT INFORMATION REGION) DARI SINGAPURA PADA TAHUN 2022

In this journal regarding Indonesia's interests in the attempt to take over the FIR (Flight Information Region) from Singapore, it reviews more in terms of impact or what factors could be the reasons or backgrounds that made Indonesia try to take over the service. Starting from the delivery of FIR services by the international aviation agency ICAO to the UK which then the UK handed over to Singapore. Where the submission of the FIR is part of the State of Authority of the Republic of Indonesia, namely the Natuna Islands. However, at that time, the Indonesian government was not ready to manage the area, so Indonesia had to take over the service. This research aims to explain what are the reasons for Indonesia wanting to take over the FIR. The type of research used in this journal is using descriptive qualitative. The data collection technique used is Library Research or data collection techniques by studying or examining from various sources such as books and reports. The source of this research is from various reports from related state institutions as well as books on the theory used. In the findings that the researchers found, it was found that Indonesia had made many efforts to take over the FIR starting in 1983. Until finally the process and also the efforts made by the Indonesian state finally had the answer in the form of in 2002 the Governments of Singapore and Indonesia agree that extradition will occur, which means the delivery of services to Indonesia

Glucose detection in blood using near-infrared spectroscopy: significant wavelength for glucose detection

World Health Organization (WHO) stated in 2004, about 347 million people suffered from diabetes and from this statistic, about 3.4 million died from the complication of kidney failure, heart attack, body part amputation and adequately reported suffered from blindness. There are several non-invasive techniques in measuring the blood glucose level developed nowadays and among the popular technique is the near-infrared (NIR) measurement, ultrasonic sensor implementation, multisensory systems, absorbance of transmittance, bio-impedance, voltage intensity, and thermography. Among these techniques, there are several approaches that displayed a lot of potential, nonetheless some of them have produced unsatisfying results. The NIR technique has been applied in some of previous research, however the wavelength used vary for different researcher. There are several points of views on the significant wavelength range that contains suitable information regarding the peaks of glucose in blood. This paper is focusing on the experimental data collection using the near-infrared spectroscopy technique. This paper furthermore discussing on determine the significant peaks of glucose that is suitable to be used as the indicator of the glucose in blood. The highest significant peaks of blood glucose detected from the range around 1450nm and 1930nm

Image reconstruction using iterative transpose algorithm for optical tomography

This paper describes a transpose algorithm for use with an optical tomography system. The measurement system consisted of two orthogonal arrays, each having ten parallel views, resulting in a total of twenty sensors. The measurement section is divided into hundred equi-sized pixels. The forward problem is modelled by allocating an optical attenuation coefficient to each pixel. The attenuation of incident collimated light beams is then modelled using the Lambert-Beer law. The inverse problem is defined and the transpose of the sensitivity matrix is used to obtain an estimate of the attenuation coefficients in each pixel. The iterative method is investigated as a means of improving reconstructed image qualit

Signifikansi Pendidikan Multikultural Terhadap Kelompok Minoritas

Indonesia as a nation of unity in diversity, composed of various ethnic groups, cultures, religions, social strata and others, is of course, in the hope of harmony within diversities in all terms of religion, politics, security, social class and as well as in education in order to create state social justice and welfare as a reflection of the Pancasila state basis. One way to achieve the above dream is through multicultural education, as a means of building tolerance of ethnic diversity, cultural, and religion and social strata of the nation, because multicultural education is a response to the diversity of school population growth, as the demand of equal rights for every group. While in the wider sense, multicultural education includes all students regardless of their groups of origins such as religion, gender, ethnic, racial, and cultural, and social strata. Ideally, however, the concept of multicultural education, is not solely directed to the areas of race, religion, and culture. Such a focus once had been an emphasis of intercultural education that emphasizes improved understanding and tolerance of individuals who come from minority groups integrated into the community of majority. Multicultural education is actually an attitude of “caring” and willing to understand the discrepancy (difference) or the “politics of recognition”; political recognition of the existence of the people from minority groups in all cases and concerns to achieve unity in diversity

First derivative prediction of raw broiler shear force using visible short wave near infrared spectroscopy

A non-destructive,fast, reliable and low cost technique which is Near-Infrared Spectroscopy (NIRS) is required to replace conventional destructive texture analyser in shear force measurement. The combination of visible and shortwave near infrared (VIS-SWNIR) spectrometer and principal component regression (PCR) to assess the quality attribute of raw broiler meat texture (shear force value (kg)) was investigated. Wavelength region of visible and shortwave 662-1005 nm was selected for prediction after pre-processing. Absorbance spectra was pre-processed using the optimal Savitzky-Golay smoothing mode with 1st order derivative, 2nd degree polynomial and 31 filter points to remove the baseline shift effect. Potential outliers were identified through externally studentised residual approach. The PCR model were trained with 90 samples in calibration and validated with 44 samples in prediction datasets. From the PCR analysis, correlation coefficient of calibration (RC), the root mean square calibration (RMSEC), correlation coefficient of prediction (RP) and the root mean square prediction (RMSEP) of visible and shortwave (662-1005 nm) with 4 principal components were 0.4645,0.0898, 0.4231 and 0.0945. The predicted results can be improved by applying the 2nd order derivative and the non-linear model

Single-, Dual- and Triple-band Frequency Reconfigurable Antenna

The paper presents a frequency reconfigurable slot dipole antenna. The antenna is capable of being switched between single-band, dual-band or triple-band operation. The antenna incorporates three pairs of pin-diodes which are located within the dipole arms. The antenna was designed to operate at 2.4 GHz, 3.5 GHz and 5.2 GHz using the aid of CST Microwave Studio. The average measured gains are 1.54, 2.92 and 1.89 dBi for low, mid and high band respectively. A prototype was then constructed in order to verify the performance of the device. A good level of agreement was observed between simulation and measurement

Pengembangan Perangkat Pembelajaran Berbasis Pendekatan Pendidikan Matematika Realistik untuk Meningkatkan Kemampuan Pemecahan Masalah Matematik Siswa Smk Negeri 5 Medan

Penelitian ini bertujuan untuk mengetahui: (1) kevalidan perangkat pembelajaran yang dikembangkan dengan pendekatan pendidikan matematika realistik untuk meningkatkan kemampuan pemecahan masalah matematik siswa, (2) kepraktisan perangkat pembelajaran yang dikembangkan dengan pendekatan pendidikan matematika realistik untuk meningkatkan kemampuan pemecahan masalah matematik siswa, (3) keefektifan perangkat pembelajaran yang dikembangkan dengan pendekatan pendidikan matematika realistik untuk meningkatkan kemampuan pemecahan masalah matematik siswa, (4) perangkat pembelajaran yang dikembangkan dengan menggunakan pendekatan pendidikan matematika realistik dapat meningkatkan kemampuan pemecahan masalah matematik siswa. Jenis penelitian yang digunakan adalah penelitian pengembangan dengan menggunakan model pengembangan Thiagarajan, Semmel dan Semmel, yaitu model 4-D. Tahap uji coba lapangan dilakukan dengan desain quasi eksperimen one group pre-test post-test. Subjek pada uji coba keterbacaan adalah siswa yang terdiri dari 9 orang. Subjek pada uji lapangan adalah siswa kelas X. Data dikumpulkan menggunakan 4 jenis instrumen yaitu lembar validasi, lembar observasi, angket dan tes. Hasil penelitian diperoleh perangkat pembelajaran yang valid, praktis, dan efektif. Hasil validasi ini menunjukkan bahwa perangkat yang dikembangkan layak digunakan. Kepraktisan dilihat dari hasil lembar observasi keterlaksanaan perangkat, respon siswa terhadap perangkat pembelajaran berada di atas 80%. Keefektifan dilihat dari nilai ketuntasan hasil belajar. Pada uji coba lapangan pertama belum mencapai kriteria keefektifan, sedangkan pada uji coba lapangan kedua sudah memenuhi kriteria keefektifan, kemampuan guru mengelola pembelajaran dalam kategori baik dan aktivitas siswa berada pada kriteria batasan keefektifan pembelajaran. Pada uji coba lapangan pertama dan kedua menunjukkan bahwa perangkat pembelajaran tersebut dapat meningkatkan kemampuan pemecahan masalah matematik siswa

Mapping and Analysis of Environmental Risk Factors Leptospirosis Incidence Based Geographic Information System (GIS) in Sampang Regency

One of the zoonosis in Indonesia is leptospirosis. Leptospirosis is caused due to infection of bacteria Leptospira. There were 107 cases and 9 deaths due to leptospirosis in Sampang. The incidence of leptospirosis in Sampang was an outbreak. The purpose of this study was to map the distribution of leptospirosis cases in Sampang in 2013 and to analyze environmental risk factors of leptospirosis cases (rainfall, altitude, and the presence of flood). This study was an observational-descriptive study and used cross-sectional study design. The unit of analysis of the study was administrative regions based on the districts. There was patients of leptospirosis in 4 districts in Sampang regency, there are Sampang district, Camplong district Robatal district and Omben district. The highest incidence of leptospirosis in Sampang regency was occured in Sampang district with rainfall more than 177.6 mm, altitude less than 47mdpl, and had experienced flooding. Mapping the incidence of leptospirosis showed the distribution of leptospirosis cases tend to be concentrated in Sampang district which had a history of flooding status. The conclusion is rainfall, altitude, and presence of flood are risk factors of leptospirosis. The advice is to improve surveillance of patients with leptospirosis particularly during floods, to do outreach to the community, to perform cross-sector cooperation, to avoid or to reduce the frequency of direct contact with the flood to minimize transmission of leptospirosis