bluuebunny/crossref_metadata_2025 huggingface dataset:
STUDI AWAL UJI PERANGKAT KAMERA GAMMA DUAL HEAD MODEL PENCITRAAN SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT) MENGGUNAKAN SUMBER RADIASI HIGH ENERGY I131
Authors: Asril Yosi Sudarsi , Milvita Dian , Nazir Fadil
Published: February 2025

ABSTRAKTelah dilakukan penelitian mengenai studi awal pengujian perangkat kamera gamma dual head model pencitraan Single Photon Emission Computed Tomography (SPECT) menggunakan sumber radiasi high energy I131 di bidang Teknik Nuklir Kedokteran (TNK) Pusat Teknologi Keselamatan dan Metrologi Radiasi (PTKMR) Badan Tenaga Nuklir Nasional (BATAN), Jakarta Selatan.Â  Pada penelitian ini dilakukan pengujian dengan mencacah I131 dan melihat pengaruh yang dihasilkan dari perubahan sudut terhadap laju cacahan menggunakan kolimator High Energy General Purpose (HEGP), tanpa kolimator, phantom linier, dan phantom jaszczak. Selain itu dilakukan analisa akumulasi sumber radiasi menggunakan teknik Region of Interest (ROI). Dari hasil pengujian didapatkan nilai laju cacahan pada saat tanpa kolimator lebih tinggi dibandingkan saat menggunakan kolimator HEGP, serta didapatkan bahwa detektor kamera gamma menangkap paparan sumber radiasi dengan baik dan tidak terjadi kerusakan pada detektorKata kunci: kamera gamma dual head, SPECT, kolimator HEGP, phantom linier, phantom jaszczak.AbstractPreliminary study on the performance of a dual head Single Photon Emission Computed Tomographic (SPECT) gamma camera at PTKMR-BATAN has been examined by using high energy radiation from I131. The performance was investigated from the influence of angle change on count rate for the system with High Energy General Purpose (HEGP) collimator, without any collimator, and with linier and jaszczak phantoms. Moreover, the accumulation of radiation was analyzed by using the Region of Interest (ROI) technique. It was found that the count rate for the measurement without any collimator was larger than the measurement with HEGP collimator. In addition, the result showed that the gamma camera detector captures the radiation exposure well, indicating that no damage occurs in the detector.Keywords: dual head gamma camera, HEGP collimator, I131, jaszczak phantom, linier phantom, SPECT.
RANCANG BANGUN ALAT UKUR TINGGI DAN BERAT BADAN BAYI BERBASIS MIKROKONTROLER ATMEGA8535 DENGAN SENSOR FOTOTRANSISTOR
Authors: Fajri Nurul , - Wildian
Published: February 2025

ABSTRAKTelah dirancang sebuah alat ukur tinggi dan berat badan bayi. Rangkaian elektronik alat ukur terdiri dari catudaya, mikrokontroler dan LCD, penguat non-inverting dan fototransistor. Sebuah lempengpersegi panjang yang terbuat dari material triplek yang ringan panjangnya 90 cm digunakan untuk membaringkan bayi. Tinggi bayi diukur menggunakan sebuah sistem sensor yang terdiri dari sebuah LED dan sebuah fototransistor dengan cara menggeser LED untuk menyesuaikan tinggiÂ  bayi. Berat bayi diukur dengan menggunakan sistem sensor lainnya yang terdiri dari sebuah pegas, sebuah LED, dan sebuah fototransistor. Ketika bayi berada di atas lempeng, pegas bergerak turun dan menyebabkan jarak antara LED dan fototransistor berkurang. Hasil yang diperoleh alat ini memiliki ketepatan 98,15% (untuk pengukuran tinggi badan) dan 95,59% (untuk pengukuran berat badan). Kata kunci : tinggi bayi, berat bayi, fototransistor, ATmega8535.AbstractA measuring instrument of height and weight for babies has been designed. The electronic circuits of this instrument consist of power supplyt, microcontroller and LCD, non inverting amplifier and phototransistor. A rectangular plate madea lightweight plywood with the length of 90 cm is used to lay down the baby. The heigtht of the baby is measured using a sensor system consist of a LED and a phototransistor by shifting the LED adjusted to the height of the baby. The weight of the baby is measured using another sensor system consist of a spring, a LED, and a phototransistor. When the baby is on the plate, the spring moving down and causes the distance between LED andphototransistor decrease. Result obtained this instrument has accuracy of 98.15% (for height measurentment) and of 95.59% (for weight measurentment). Keywords : babies height, babies weight, phototransistor, ATmega8535.
Rancang Bangun Sistem Otomasi Penyalaan Lampu Ruang Kuliah Berbasis Mikrokontroler ATmega8535 dengan Detektor PIR Paradox-465
Authors: Rangkuti Nanda Rahman , - Wildian
Published: February 2025

ABSTRAKRancang bangun sistem otomasi penyalaan lampu ruang kuliah berbasis mikrokontroler ATmega8535 telah dilakukan dengan menggunakan detektor PIR Paradox-465. Sistem otomasi penyalaan lampu dapat menyalakan dan mematikan lampu secara otomatis, lampu menyala selama ada orang di dalam ruangan, dan lampu mati ketika orang meninggalkan ruangan. Ketika sensor terhubung ke catudaya, sensor PIR tidak langsung dapat mendeteksi melainkan memerlukan waktu sekitar 25,5 detik untuk pemanasan. Jarak maksimum yang dapat dideteksi sensor adalah 6,3 meter pada sudut 0o lurus dari depan sensor, satu meter pada sudut 70o kekiri dan kekanan sumbu horizontal dan vertikal sensor. Tegangan keluaran sensor 2,72 VÂ  ketika obyek terdeteksi dan 0 V ketika obyek tak terdeteksi.Kata kunci : kontrol lampu, PIR Paradox-465, mikrokontroler ATmega8535.AbstractA design of an automatization system to control the electric light switch in a class room based on microcontroller ATmega8535 with PIR Paradox-465 detector has been done. Automatization to control the electric light system will turn on and turn off lights automatically, the electric lights will be turn on during the people are in the room, and it will turn off when they leave the room. When the sensor is connected to a power supply, it needs about 25.5 seconds to warm up before detecting objects. The maximum distance that can be detected by the sensor is 6.3 meter at an angle of 0Â° straight ahead of the sensor, and 1 meter at an angle of 70Â° left and right vertical and horizontal axis. The output voltage of the sensor is 2.72 V when an object is detected and 0 V when the object is not detected.Keywords : Electric Light Control, PIR Paradox-465, microcontroller ATmega8535.
ANALISIS KONTRAS SPEKEL PADA OLI TERHADAP PERUBAHAN KEKENTALAN DENGAN VARIASI TEMPERATUR MENGGUNAKAN LSI (LASER SPECKLE IMAGING)
Authors: Erlangga Adhitya Rolando , - Harmadi
Published: February 2025

ABSTRAKTelah dilakukan penelitian untuk mengetahui perubahan kekentalan oli mesin kendaraan bermotor terhadap variasi temperatur dengan menggunakan LSI (Laser Speckle Imaging). Komponen dan bahan terdiri dari laser He-Ne sebagai sumber cahaya, detektor CCD kamera (Charge Couple Device), termometer, pemanas, PC (Personal Computer) dan oli. Oli yang digunakan adalah oli Mesran SAE 20W-50. Oli dipanaskan pada temperatur 30ÂºC, 40ÂºC, 50ÂºC, 60ÂºC, 70ÂºC, 80ÂºC, 90ÂºC, 100ÂºC. Berkas laser He-Ne diarahkan pada sampel hingga terjadi back-scattering dan dideteksi menggunakan CCD kamera. Informasi dari CCD direkam menggunakanÂ  software Ulead Video Studio-10 berukuran 320x240 piksel dan ditampilkan dalam bentuk pola spekel. Pola spekel terbentuk dikonversi menjadi gray scale, kemudian dianalisis secara histogram menggunakan software ImageJ untuk mendapatkan nilai kontras spekel. Nilai kontras tertinggi didapatkan padaÂ  temperatur 30ÂºC sebesar 0,3183 a.u. Nilai kontras terendah didapatkan pada temperatur 100ÂºC sebesar Â 0,1756 a.u. Penurunan nilai kontras spekel pada oli saat temperatur meningkat memperlihatkan perubahan kekentalan oli. Nilai regresi data kontras yang didapatkan saat oli dipanaskan 0,933. Semakin rendah kekentalan oli maka nilai kontras spekel dihasilkan semakin kecil yang mengikuti fungsi eksponensialKata kunci : LSI, temperatur, kekentalan, kontras, CCDAbstractResearch had been conducted to determine the changes of Â lubricant oil viscosityin the motor vehicle engine against temperature by using LSI (Laser Speckle Imaging). Component and material consisted of a He-Ne laser as light source, camera CCD (Charge Couple Device) detector, thermometer, heater, PC (Personal Computer) and oil. Mesran SAE 20W-50 oil was used in research. Oil was heated at temperature 30ÂºC,40ÂºC, 50ÂºC, 60Â°C, 70ÂºC, 80ÂºC, 90ÂºC, Â and 100ÂºC. He-Ne laser beam was directed at the sample to occur back-scattering and detected by using a CCD camera. Information from the CCD was recorded by using Ulead Video Studio-10 software size 320x240 pixels and displayed in the form speckle pattern. The speckle pattern was converted to gray scale and analyzed by using the histogram method in ImageJ software to obtain speckle contrast value. The highest contrast value were obtained at temperatures 30Â°C at 0.3183 a.u. The lowest contrast value were obtained at temperatures 100ÂºC at 0.1756 a.u. The Decreasing of speckle contrast value changes when the temperature increased, it showed oil viscosity change. Contrast regression value obtained were 0.933. The more decreased the viscosity of oil, the values of speckle contrast would be smaller that followed an exponential function.Keywords :LSI, temperature, viscosity, contrast, CCD
ESTIMASI PENCEMARAN AIR SUMUR YANG DISEBABKAN OLEH INTRUSI AIR LAUT DI DAERAH PANTAI TIRAM, KECAMATAN ULAKAN TAPAKIS, KABUPATEN PADANG PARIAMAN
Authors: Amri Hafizul , Putra Ardian
Published: February 2025

ABSTRAKTelah dilakukan penelitian tentang pencemaran air laut yang diakibatkan oleh intrusi air laut di Pantai Tiram, Kecamatan Ulakan Tapakis, Kabupaten Padang Pariaman dengan menggunakan konduktivitas dan TDS (total dissolved solid).Â  Nilai konduktivitas yang didapatkan dari 25 sumur berkisar antara 48,46 sampai 181,86 Î¼mhos/cm dan berdasarkan keputusan Panitia Add Hoc Intrusi Air Asin (PAHIAA) pada tahun 1986, nilai konduktivitas ini termasuk ke dalam kategori air tawar.Â  Daerah penelitian dibagi menjadi 3 wilayah berdasarkan jaraknya dari tepi pantai.Â  Dengan menggunakan surfer 9, dapat dilihat bahwa nilai konduktivitas dari sumur semakin kecil jika jarak dari pantai semakin jauh.Â  Hasil dari pengujian TDS, terdapat 3 nilai yang melebihi standar air tawar menurut PAHIAA, yaitu sample 1 (6766 mg/L), sample 2 (4200 mg/L) dan sample 5 (2500 mg/L).Â  Rata-rata TDS di zona 1 termasuk ke dalam kategori agak payau, sedangkan rata-rata nilai TDS dari zona 2 dan 3 termasuk dalam kategori air tawar.Â  Perbedaan nilai TDS di daerah yang dekat dengan pantai dengan yang jauh dari pantai disebabkan oleh material penyusun tanah di daerah penelitian yang terdiri dari lanau, pasir dan kerikil.Â  Lanau akan mengisi pori-pori pada pasir dan kerikil sehingga nilai permeabilitasnya menjadi kecil, dan mengurangi intrusi air laut pada daerah yang semakin jauh dari pantai.Kata kunci : pencemaran, salinitas, konduktivitas, TDS (Total Dissolved Solid)AbstractThe level of sea water contamination on groundwater in Tiram Beach has been determined through the conductivity and TDS (Total Dissolved Solid) observation.Â  The conductivity obtained on 25 wells ranges between 48.46 and 181.86 Î¼mhos/cm and according to the decision of the Ad Hoc Committee of the Salt Water Intrusion in 1986, such values are belong to the category of fresh water.Â  The research area is devined into three zones, according to its distance from shore.Â  By appling the surfer 9 software, the distribution of conductivity tend to decrease on sites that is located further to the land.Â  The result of TDS test shows that 3 samples have TDS exceeding quality standar issued by Ad Hoc Committee of the Salt Water Intrusion, that are sample 1 (6766 mg/L), sample 2 ( 4200 mg/L) and sample 5 (2500 mg/L).Â  Average TDS on zone 1 is classified as slightly saline, while zone 2 and zone 3 are classified as fresh water. This difference is caused by the materials are formed by sand, gravel and silt.Â  Silt will fill out the pore out the pore of gravel and sand, so that it reduced its permeability, and sea intrusion to the wells away from shore will be blocked gradually.Keywords : contamination, salinity, conductivity, TDS (Total Dissolved Solid)
PEMETAAN PERSENTASE KANDUNGAN DAN NILAI SUSEPTIBILITAS MINERAL MAGNETIK PASIR BESI PANTAI SUNUR KABUPATEN PADANG PARIAMAN SUMATERA BARAT
Authors: - Palkrisman , Budiman Arif
Published: February 2025

ABSTRAKTelah dilakukan penelitian tentang pemetaan persentase kandungan dan nilai suseptibilitas mineral magnetik pasir besi Pantai Sunur Kabupaten Padang Â Pariaman menggunakan metode Anisotropy of Magnetic Susceptibility (AMS). Hasil perhitungan persentase kandungan mineral magnetik dari 55 sampel menunjukkan rentang nilai 6,5% hingga 61,3%. Hasil perhitungan suseptibilitas mineral magnetik dari 55 sampel menunjukkan rentang nilai 333,65 Ã— 10-8 m3/kg hingga 2883,67 Ã— 10-8 m3/kg, berdasarkan nilai ini dapat diperkirakan bahwa mineral utama penyusun pasir besi Pantai Sunur adalah hematit dan ilmenit. Pemetaan dilakukan dengan menggunakan software surfer 9.0 pada 5 lintasan yang sejajar garis pantai. Lintasan pertama berada di tepi laut, dan lintasan berikutnyaÂ  menjauhi laut dengan jarak antar lintasan 25 m. Hasil pemetaan persentase kandungan mineral magnetik menunjukkan bahwa Lintasan 3 (tengah lintasan) yang berjarak 50 meter dari lintasan pertama (tepi laut) mempunyai nilai kandungan persentase mineral magnetik terbesar. Hasil pemetaan nilai suseptibilitas mineral magnetik menunjukkan bahwa Lintasan 5 yang berjarak 100 meter dari lintasan pertama mempunyai nilai suseptibilitas terbesar.Kata Kunci : pasir besi, anisotropi, magnetik, dan suseptibilitas.AbstractThe mapping of content percentage and magnetic susceptibility of iron sand from Sunur beach, Padang Pariaman, using Anisotropy of Magnetic Susceptibility (AMS) methods has been conducted. Based on the calculation, the content percentage of the magnetic mineral of iron sand of 55 samples are from 6.5% to 61.3%. The value of magnetic susceptibility of 55 samples are fromÂ  333.65 Ã— 10-8 m3/kg to 2883.67 Ã— 10-8 m3/kg. From the value, it can be estimated that the main magnetic minerals of iron sand Sunur beachÂ  are hematite and ilmenite. The mapping is done by using Surfer 9.0 software at 5 tracks parallel to the shoreline. The first track is near the sea, and the next track is 25 m away from the first track to the land side. It shows that track 3 (middle path) within 50 meters from the first track (waterfront) has the largest percentage of magnetic mineral. The magnetic susceptibility mapping shows that track 5 within 100 meters from the first track has the greatest value of susceptibility.Keywords : iron sand, anisotropy, magnetic, and susceptibility.
SINTESIS KARBON AKTIF DARI KULIT DURIAN UNTUK PEMURNIAN AIR GAMBUT
Authors: Ulfia Suci Miza Marta , - Astuti
Published: February 2025

ABSTRAKTelah disintesis karbon aktif dari kulit durian dengan aktivator kalium hidroksida (KOH). Bentuk dan ukuran pori karbon aktif serta kemampuan dalam mengadsorbsi Fe pada air gambut dapat dilihat dari pengaruh konsentrasi KOH. Karbon aktif dikarakterisasi untuk mengetahui bentuk dan ukuran porinya dengan Scanning Electron Microscopy (SEM). Dari hasil karakterisasi didapatkan bahwa semakin besar konsentrasi KOH, semakin besar juga ukuran pori yang didapat yaitu pada konsentrasi 35% dengan ukuran pori 8,41 Î¼m. Hasil penelitian menggunakan Atomic Absorbsion Spectrophotometry (AAS) menunjukkan bahwa kadar besi menurun seiring dengan meningkatnya ukuran pori. Hasil kadar besi yang terkecil pada konsentrasi KOH 35% sebesar 0,36 mg/L hampir mendekati batas ambang air layak konsumsi yaitu 0,3 mg/L. Nilai konduktivitas listrik diperoleh sebesar 0,072 mS/cm pada konsentrasi KOH 35% masih berada di atas batas ambang konduktivitas air layak konsumsi yaitu 0,055 mS/cm.Kata kunci : Kulit durian, kalium hidroksida (KOH), adsorbsi FeAbstractThe syntesis active carbon from kingfruit shell used kalium hydroxyde (KOH) as activator has been done. The research determined effect of KOH consentration to morphology, pore size and performance of actived carbon to absorbs of ferrum in peat water. Morphology and pore size were examined by using SEM. Characterization show that increasing of KOH consentration caused an increase in the pore size are 8,41 Î¼m in KOH consentration 35%. Atomic Absorbsion Spectrophotometry (AAS) results shows that in decreasing ferrum consentration caused by increasing pore size. KOH 35% give lowest in content ferrum is 0.36 mg/L and almost approaching the threshold water is 0.3 mg/L. Electrical conductivity is 0.072 mS/cm in KOH consentration 35% and still above the thresholdÂ  conductivity of water for consumed is 0.055 mS/cm.Keywords : Kingfruit, kalium hydroxyde (KOH), adsorbtion of ferrum
ANALISIS DOSIS RADIASI TERHADAP RADIOTERAPIS MENGGUNAKAN POCKET DOSEMETER, TLD BADGE DAN TLD-100 DI INSTALASI RADIOTERAPI RSUP DR. M. DJAMIL PADANG STUDI KASUS (MEI â€“ OKTOBER) 2014
Authors: Utari Milda , Milvita Dian , Nuraeni Nunung , Yuliati Helfi
Published: February 2025

ABSTRAKPenelitian tentang analisis dosis radiasi terhadap radioterapis menggunakan pocket dosemeter, Â Â Â Â Â Â Â Thermoluminisence Dosemeter (TLD) badge, dan Thermoluminisence Dosemeter-100 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (TLD-100) telah dilakukan di Instalasi Radioterapi Rumah Sakit Umum Pusat Dr. M. Djamil Padang. Penelitian ini bertujuan untuk mengukur dosis radiasi, menganalisis dosis radiasi berdasarkan NBD yang ditetapkan Peraturan BAPETEN Nomor 3 Tahun 2013, dan memperkirakan efek radiasi terhadap radioterapis. Â Pengambilan data dilakukan pada tiga orang radioterapis dengan 4 titik pengukuran.Â  Pocket dosemeter diproyeksikan pada organ gonad, TLD badge pada organ dada, dan TLD-100 pada keempat titik pengukuran yang meliputi organ mata, thyroid, dada dan gonad.Â  Hasil penelitian menunjukkan bahwa dosis radiasi rata-rata yang diterima radioterapis menggunakan pocket dosemeter adalah sebesar 0,005 mSv per hari, dan menggunakan TLD badge sebesar 0,014 mSv per hari.Â  Pada TLD-100, interval dosis radiasi terhadap radioterapis berkisar antara 0,000004 mSv sampai 0,00095 mSv per hari.Â  Dosis radiasi tersebut masih berada di bawah NBD yang ditetapkan Peraturan BAPETEN Nomor 3 Tahun 2013, yaitu 20 mSv per tahun.Â  Berdasarkan pengukuran yang telah dilakukan, dapat diperkirakan akan terjadinya efek stokastik pada radioterapis.Kata kunci : pocket dosemeter, TLD badge, TLD-100, NBD, efek stokastikABSTRACTThe research about radiation dose analysis of radiotherapist using pocket dosemeter, Thermoluminisence Dosemeter (TLD) badge and Thermoluminisence Dosemeter-100 (TLD-100) has been done in Radiotherapy Installation of Dr. M. Djamil Padang Public Hospital.Â  This research purpose to measure the radiation dose, to analyze the radiation dose based on BAPETEN rules number 3 on 2013, and to estimate the radiation effect on the radiotherapist.Â  The data have been taken from three radiotherapists on 4 points measurement.Â  Pocket dosemeter projected on gonad organ, TLD badge on chest organ, and TLD-100 on four points measurement covering the eyes, thyroid, chest and gonad organ.Â  The result of this research showed that the average radiation dose received by the radiotherapist using pocket dosimeter is 0,005 mSv per day, and TLD badge is 0,014 mSv per day. Â In TLD-100, the radiotherapistâ€™s radiation dose interval are from 0,000004 mSv to 0,00095 mSv per day.Â  The radiation dose is less than the NBD of BAPETEN rules number 3 on 2013, namely 20 mSv per year.Â  Based on measurements that have been done, it can be expected the occurrence of stochastic effects on the radiotherapist.Keywords : pocket dosemeter, TLD badge, TLD-100, NBD, stochastic effect
El rap como fuente de datos para el estudio del discurso de los jóvenes. Variabilidad léxica en raperos mileniales

Authors: Checa Fernández Francisco Óscar , Camargo Fernández Laura
Published: February 2025

This paper aims to analyze the lexical variation in Spanish millennial rappers through a textual corpus of their most representative songs. The study focuses on parameters such as the most common semantic fields in their lyrics; code switching and idiomatic plurality and, finally, semantic transformation processes such as dysphemisms, neologisms and relexifications. Analysis shows how these procedures are closely related to the representative aspects of millennial language, on the one hand, and to those typical of rap slang, on the other. It is also intended to demonstrate the suitability of rap as a source of data for the study of young people language and, specifically, for the analysis of the incipient line of research on millennial language.
ANALISIS PENGARUH KOMITMEN PROFESIONAL, INTENSITAS MORAL, DAN LOCUS OF CONTROL TERHADAP INTENSI WHISTLEBLOWING
Authors: Fiddini Fadia Tara , Ridaryanto Petrus
Published: February 2025

It is not easy for individuals to decide to carry out whistleblowing. Individuals will be faced with the dilemma of whether to blow the whistle or just let the violation happen because of concerns about its negative impact on them. Therefore, it is important to research the factors influencing whistleblowing intentions so that organizations can understand the dynamics behind individual decisions to report violations or unethical behavior. This research analyzes the influence of professional commitment, moral intensity, and locus of control on whistleblowing intentions. In collecting data, the author distributed questionnaires online with a research sample of 45 respondents who were employees of 3 companies in Jakarta that had implemented a whistleblowing system, namely PT Telkom Indonesia, PT Telekomunikasi Selular, and PT Bursa Efek Indonesia. The collected data was analyzed using multiple regression analysis methods. The research results show that professional commitment positively influences whistleblowing intentions. Meanwhile, moral intensity and locus of control do not influence whistleblowing intentions
DETECTION OF FINANCIAL DISTRESS IN TECHNOLOGY COMPANIES LISTED ON THE INDONESIAN STOCK EXCHANGE
Authors: Syahrbanu Aqilah Nainawa  , Sudradjat
Published: February 2025

The purpose of this study is to determine and analyse the sensitivity of the results of financial distress analysis using the Ohlson and Grover models to predict financial distress in technology companies listed on the IDX for the 2020-2022 period. The study employs quantitative data extracted from the financial statements of technology companies listed on the Indonesia Stock Exchange (IDX) from 2020 to 2022. Utilizing the Ohlson and Grover models, the research aims to detect financial distress within these technology firms and determine the sensitivity level of the two models. This descriptive research design relies on secondary data sources, emphasizing the objectivity and popularity inherent in data-driven analyses. The research results of financial distress detection analysis, Ohlson model detects 10 distress zones and 8 safe zones, while Grover model detects 5 distress zones, 1 gray zone and 12 safe zones. From this analysis, the Grover model shows a higher level of sensitivity in recognizing financial distress with 12 samples consistent with the results of the Grover model analysis.
ANALISIS NPL, LDR, DAN CAR TERHADAP KINERJA KEUANGAN BANK PEMBANGUNAN DAERAH DI PROVINSI KALIMANTAN
Authors: Safitri Aista , Perdana Ariefanda Iqbal , Haryono Haryono
Published: February 2025

Banks are financial institutions that collect public money through deposits and back it to the community through credit. The function of BPD is to encourage the creation of regional economic growth, hold cash, and manage regional finances, as well as one of the sources of local revenue. This study aims to analyze the effect of NPL, LDR, and CAR on financial performance projected by ROA. The population of this study is a regional development bank in Kalimantan Province, namely, as many as four companies for the period 2013-2022. Three companies were obtained as samples based on the purposive sampling technique. The data analysis technique used is multiple linear regression. The results showed that (1) NPL has a negative and insignificant effect on ROA, (2) LDR has a positive and significant effect on ROA, and (3) CAR has no significant effect on ROA.
PENGARUH PENERAPAN TATA KELOLA DAN BIAYA CSR TERHADAP NILAI PERUSAHAAN DENGAN KINERJA KEUANGAN SEBAGAI VARIABEL MEDIASI
Authors: Suryawan Diva Adhindha Triamandha , Susilandari Caecilia Atmini
Published: February 2025

This research analyzes the effect of corporate governance and corporate social responsibility (CSR) on the firm’s value with financial performance as a mediation variable. The theory used agency and signaling theories to explain the relationship between independent, mediating, and dependent variables. Firm value was measured by price to book value. The sample used mining industry, and the research period was 2020 – 2023. The data analyses used descriptive statistics and multiple linear regressions. The result shows that corporate governance is not significant to the financial performance and firm value. CSR expenses are positively significant to financial performance but are not significant to the firm's value. Financial performance is positive and significant to the firm’s value. Financial performance cannot mediate corporate governance and CSR expense to the firm’s value. This research implies that the regulation must verify the self-assessment to ensure corporate governance practice. The study adds to the literature by empirically proving the direct and indirect influences of corporate governance and CSR expense on firm value.
Pengendalian Banjir Perkotaan di Pontianak melalui Pendekatan Sponge City
Authors: Kusuma Ervinawati , Sukwadi Ronald
Published: February 2025

Kota Pontianak menghadapi tantangan serius terkait banjir, terutama pada bulan-bulan dengan curah hujan tinggi. Penelitian ini bertujuan untuk mengevaluasi potensi penerapan strategi sponge city dalam pengelolaan drainase perkotaan di Kota Pontianak sebagai solusi untuk mengatasi tantangan banjir. Penelitian ini menggunakan pendekatan kualitatif deskriptif-analitis dengan metode kajian literatur dan virtual benchmarking. Kajian literatur dilakukan untuk membangun landasan teoritis, sementara virtual benchmarking dilakukan terhadap kota-kota yang telah berhasil menerapkan strategi pengelolaan air perkotaan yang inovatif. Analisis kontekstual dilakukan untuk menilai kesesuaian dan tingkat implementasi konsep sponge city dalam konteks Kota Pontianak. Kajian literatur menunjukkan bahwa penerapan strategi sponge city dapat secara signifikan mengurangi risiko banjir perkotaan. Virtual benchmarking memberikan pembelajaran berharga tentang praktik-praktik terbaik dalam penerapan konsep sponge city. Analisis kontekstual menunjukkan bahwa Pontianak memiliki potensi untuk menerapkan konsep sponge city, dengan mempertimbangkan karakteristik geografis, klimatologis, dan sistem drainase eksisting kota. Kota Pontianak berpotensi menerapkan konsep sponge city sebagai solusi untuk meningkatkan ketahanan terhadap banjir. Penerapan sponge city memerlukan pendekatan terpadu dan kolaboratif yang melibatkan berbagai pemangku kepentingan.
MODIFICATION OF THE POPULATION MODEL WITH METABOLIC PRODUCTS AND ADAPTATION FACTOR
Authors:   Ural Federal University named after the First President of Russia B.N. Yeltsin, Ekaterinburg, Dunaev Y.D. ,   Moscow Institute of Physics and Technology, Dolgoprudny, Starodumov I.O. , Mikushin P.V. , Makhaeva K.E. , Nizovtseva I.G.
Published: February 2025

In the present work a mathematical model of the population in a flow-through bioreactor is formulated, taking into account
the influence of bacterial growth rate of metabolic products and bacterial adaptation time to the environment. Based on the results
of numerical modeling, it was found that the growth rate of the bacterial population significantly depends on the adaptation time and the
lag phase duration.
IS OF THE PANDEMIC IN THE RUSSIAN FEDERATION USING THE VGARUS PLATFOR
Authors:   Central Research Institute of Epidemiology, Moscow, Kotov I.A. , Agletdinov M.R. ,   Moscow Institute of Physics and Technology, Dolgoprudny, Roev G.V. , Pimkina E.V. , Nadtoka M.I. , Peresadina A.V. , Bukharina A.Yu. , Svetlichny D.V. , Goncharov S.E. , Vykhodtseva A.V. , Borisova N.I. , Chanyshev M.D. , Agabalaev D.N. , Saenko V.V. , Khafizov K.F. , Akimkin V.G.
Published: February 2025

In the largest study of its kind in Russia, we analyzed SARS-CoV-2 genomic sequences collected across the country from May
2020 to March 2024 and uploaded to the VGARus platform. The analysis revealed patterns in the changing of viral strains during
the COVID-19 pandemic.
PREDICTIVE CAPABILITY OF MACHINE LEARNING MODELS BASED ON CLINICAL INDICATORS OF ATHEROSCLEROSIS
Authors:   Laboratory of Molecular Genetic Modeling of Inflammaging, Institute of General Pathology and Pathophysiology, Moscow, Orekhov N.A. , Borodko D.D. , Pleshko E.M. , Omelchenko A.V.
Published: February 2025

Atherosclerosis is a chronic disease and one of the top three causes of mortality in Russia. The aim of this study is to create
machine learning models to predict atherogenesis over a period of 3 to 12 months based on clinical indicators, including LDL-CIC.
Data from 101 patients demonstrated that the decision tree method provides the best predictive assessment (specificity 98.9 %, accuracy 94.1 %).
SINGLE-CELL MULTI-OMICS REVEAL STAGE-DEPENDENT PATTERNS OF IMMUNE RESPONSE GENE EXPRESSION IN NORMAL AND ACUTE LYMPHOBLASTIC LEUKEMIA HUMAN ERYTHROID CELLS
Authors:   Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Perik-Zavodski R.I. ,   Clinic of Immunopathology, Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Perik-Zavodskaia O.Y. , Shevchenko Y.A. , Volynets M.O. , Alrhmoun S. , Denisova V.V. , Sennikov S.V.
Published: February 2025

Acute lymphoblastic leukemia (ALL) exerts a suppressive effect on all bone marrow cell populations, including erythroid nucleated cells, the precursors of red blood cells with immunoregulatory properties [1]. To study in detail the mechanisms of the influence
of ALL on erythroid nucleated cells, we analyzed the immune transcriptome and surface proteome using the multi-omics method of single bone marrow mononuclear cells on the BD Rhapsody platform. We found that in ALL, the expression of the MBZ1 gene increases
and the expression of the S100A9 gene decreases in late erythroid nucleated cells
RATAT PROGRAM FOR PROCESSING AND ANALYZING ELECTROCORTICOGRAMS OF LABORATORY ANIMALS
Authors:   Institute of Higher Nervous Activity and Neurophysiology RAS, Moscow, Rebik A.A.
Published: February 2025

The RatAt program, developed for ECoG analysis, allows you to analyze and take advantage of modern analysis of electrical
activity of the brain without knowledge of Python. The program implements time-frequency analysis, analysis of power and amplitude
spectra, wavelet analysis and analysis of aperiodic activity, filtration and removal of cardiac activity from recordings of electrical activity of the brain and muscles. The processing of Ecg recordings and the main tools for analyzing electrical activity are implemented
using the MNE, FooF and SciPy libraries.
RANKING AND SELECTION OF CASSETTE REGULATORS FOR POSTTRAUMATIC STRESS DISORDER GENE NETWORK RECONSTRUCTION
Authors:   Chelyabinsk State University, Tseilikman D.-M.V. , Burlakov E.V.
Published: February 2025

Post-traumatic Stress Disorder (PTSD) is a severe mental health condition that occurs in response to a traumatic event. Studies
show that susceptibility to PTSD depends on the genotype of the individual. Gene networks offer a good tool for modeling pathology
to find drug targets, and microRNAs are cassette regulators of gene networks. In this study, we have selected and ranked miRNAs
associated with PTSD.
Workplace Noise Exposure and Relative Health Hazardous Among the Power Loom Workers – A Cross-Sectional Study
Authors: Sen Somnath , Ravichandran Beerappa , Karunamoorthy Panjakumar
Published: February 2025

Background

Exposure to excessive noise in the workplace is a potential risk, and higher noise levels with longer exposure can lead to increased noise-induced hearing loss (NIHL). Furthermore, noise exposure is the second most common risk factor in the workplace, after workplace injuries in an occupational exposure setting.

Objectives

The objective of this study was to find out the prevalence of NIHL among the workers in the power loom industry.

Material and Methods

This cross-sectional study was carried out at a home-based small-scale weaving factory (power looms) located in Bangalore city to find out the occupational noise exposure and NIHL during the year 2019–2020. Noise exposure monitoring was carried out in 12 power loom workplace areas using a portable integrated sound level meter along with frequency spectra bands. A total of 172 (122 male and 50 women) workers took part in the study. An audiometric test was carried out among the workers along with personal details and lifestyle factors with a predesigned questionnaire.

Results

Noise monitoring was conducted at power looms to evaluate the exposure assessment. It was found that the study population was highly exposed to noise with a full shift noise exposure of 95.7dB(A). The mean ranges of Leq and TWA in this study were 92.3–100.2 dB(A) and 84.4–95.9 dB(A), respectively. The octave band analysis of noise of high sound levels with the frequencies of 1000 Hz, 2000 Hz, and 4000 Hz was carried out, and the highest sound intensity was recorded in 2000 Hz frequency followed by 4000 Hz above 90dB(A) in both frequencies. The audiometry test was conducted on 69 workers (60 men and 9 women) who voluntarily participated in the pure-tone audiometry. Out of 69 workers, 60 (87%) of the study group suffered from noise-induced hearing loss.

Conclusion

The study was conducted in an unorganized sector where high noise in the power looms may be the use of machines without any shielding with soundproof materials/barriers from the workplace. The inadequate acoustic design and poor machinery maintenance may also be a reason. This study elucidates the trends in the burden and risk of hearing loss among workers in hazardous noise environments.
Polyneuropathy due to Vitamin B6 hypervitaminosis: A case series and call for more education
Authors: Gdynia Natalie , Gratzer Andreas , Gdynia Hans-Jürgen
Published: February 2025

Polyneuropathy (PN) due to Vitamin B6 hypervitaminosis is well described in medical literature. However, only little is known about this relationship among the general population as well as under health care professionals. The following describes eight consecutively recruited patients: Seven of whom developed sensorimotor PN due to uncritical Vitamin B6 medication, and one patient who experienced a worsening of a pre-existing PN of another etiology associated with Vitamin B6. Due to the fact that Vitamin B6-induced PN is a preventable disease, we strongly advocate for increased awareness and education among the population and medical practitioners. It is crucial to understand that taking vitamin supplements is not always beneficial and can be associated with serious side effects.
A practical guideline managing subretinal air during vitrectomy as an intraoperative complication
Authors: Illescas-Lomeli Carlos , López-Bolaños Antonio , Cano-Hidalgo René , Cortes-Muñoz Daniel
Published: February 2025

A 77-year-old woman visited our office due to a 15-day decline in vision in her left eye. During the examination, she had a best-corrected visual acuity of 20/40 in her right eye and hand motion in her left eye. A binocular indirect ophthalmoscopy revealed a total rhegmatogenous retinal detachment (RRD) due to a horseshoe tear in the upper temporal quadrant. She underwent pars plana vitrectomy with a C3F8 tamponade and a scleral buckle. The procedure proceeded smoothly; however, during the fluid-air exchange, regrettably, the trocar covered the horseshoe tear, prompting the placement of subretinal air beneath the lesion. The literature worldwide has reported a limited number of cases of subretinal gas, a known but rare complication of pneumatic retinopexy to repair RRD. In this case report, we highlight the intraoperative course of this complication and describe how we managed to solve it.
ВЕРОЯТНОСТНАЯ ОЦЕНКА ПАРАМЕТРОВ ЛЕСНОГО ПОЖАРА
Authors: Акимов В.А. , Бедило М.В. , Пуликов М.А.
Published: February 2025

В статье рассмотрены прогнозно-аналитические решения по лесным пожарам для урбанизированных территорий, в математическую основу которых положены байесовские классификаторы. Результатом работы является формализованное описание модели для прогнозирования лесных пожаров и вероятностная оценка основных параметров для верхового и низового лесного пожара.

The article discusses predictive and analytical solutions for forest fires for urban areas, the mathematical basis of which is based on Bayesian classifiers. The result of the work is a formalized description of the model for forecasting forest fires and probabilistic assessment of the main parameters for crown and ground forest fires.
ИНСТИТУЦИОНАЛЬНЫЕ АСПЕКТЫ УСТОЙЧИВОГО ФУНКЦИОНИРОВАНИЯ РЕГИОНАЛЬНОЙ ПРОДОВОЛЬСТВЕННОЙ СИСТЕМЫ
Authors: СУТЫГИН П.Ф. , СУТЫГИНA А.И. , БОТКИН О.И.
Published: February 2025

Представлена институциональная структура региональной продовольственной системы как многокомпонентная совокупность формальных и неформальных институтов. Выделены функции институтов в региональной продовольственной системе. Рассмотрены особенности функционирования продовольственной системы Удмуртии с учётом типа экономического поведения местных органов власти, традиций и обычаев сельских жителей. В качестве институционального барьера функционирования продовольственной системы Удмуртии показано отсутствие паритетности в налоговых отношениях федерального центра и региона.  Сделан вывод о необходимости совершенствования внешней и внутренней институциональной среды региональной продовольственной системы.

Introduction. The coherence and balance in the functioning of all the subsystems of the food system are the obligatory conditions for the stable functioning of it in a region. Thus, the institutional provision for the food system is needful. The goal of the research is to ground the institutional conditions for the stable functioning of the regional food system. A multi-component structure of formal and informal institutions is rather typical for a food system. At that, the institutions shall belong to the field of production, distribution and consumption of food. If economic agents are ineffective in coming to an agreement with each other, a need in the external enforcement arises. The state includes such functions as assessment of current situation and definition of the measures for an adequate support of the most significant economic institutions, and performance of institutional transformations with a view to establish the conditions for the development of the entire food system. No clarity when providing state support for the regions leads to the lobbying of separate communities. This causes both concentration of food production in the developed regions and creation of work places, household income as well as a high level for food consumption. Disparity between the regions in the income level and food consumption is an institutional trap for the food system and the entire economy of the region. Results. The particularities of the food system functioning in Udmurtia with due account for the type of economic behavior of the local authorities and traditions and habits of villagers were considered. As an institutional barrier for the Udmurtia food system functioning, lack of parity in the fiscal relations of the federal authorities and the region is demonstrated. Conclusion. Institutional conditions for the functioning of the regional food system shall be improved and transformed in accordance with the changes of internal and external social and economic factors for food security of the region and all the country. In order to reduce the disparity of the regions on the level of food consumption and to alleviate the dependence of food consumption on the population income level, it is obligatory to establish appropriate institutions.
Проблемы уникального выбора: архетипы управленческих решений
Authors: ГОРОХОВ А.В. , ЦАЙ Е.Л.
Published: February 2025

В статье рассматриваются проблемы уникального выбора, системный анализ как методология принятия слабоструктурированных решений, формирование «эмпирических правил» в виде архетипов на основе метода системной динамики.

Introduction. Management decisions are a central element for complex tasks in social, economic, environmental, and political systems. The main feature of such systems is the weak structuring of knowledge about a system, strong mutual influence between the parameters of the system is the central feature of such systems. That is, there are practically no independent control parameters in the system, which significantly complicates its study. In decision-making theory, such problems are called “weakly structured” or “non-structured”. Furthermore, the main characteristics are qualitative. For this reason, sufficiently reliable quantitative models for their description and solution are missing. The goal of the research is to give a rational reasoning for application of the methods for solving complex management problems. Methods. An attempt to apply the methods of the classical theory of decision-making under the conditions of complex problems led to the development of a new direction in the theory of decision-making - “unique choice”. Methods and technologies of unique choice are developed as a result of adaptation of classical decision-making methods to the conditions of lack of information at the time of decision-making and as a result of uncertainty in the estimates of alternatives, as well as the lack of objective quantitative scales for evaluating alternatives. This inevitably leads to the growing importance and value of expert assessments in the tasks of the unique choice. At the same time, low efficiency of applying the unique selection methods for solving complex problems, even with high expert competence, is primarily due to the weak structuring of these tasks. Use of simulation modeling (system dynamics) as a tool of the system approach can significantly improve the efficiency of managerial decision-making in the conditions of weakly structured tasks. Conclusion. Simulated models built on the basis of expert knowledge are of high operational value. They enable the investigation of the dynamics of mutual influence of the parameters of a complex system, which makes it possible to identify the cause and effect relationship both “inside” the complex system and with the “host” system (archetype). Understanding of the processes of the system under study as a subsystem of the containing system significantly increases the efficiency of the decisions made to manage this system
ДИСТАНЦИОННАЯ, НАДОМНАЯ РАБОТА И РАБОТА ПО ДОГОВОРАМ ГРАЖДАНСКО-ПРАВОВОГО ХАРАКТЕРА: ОТЛИЧИТЕЛЬНЫЕ ПРИЗНАКИ
Authors: ПОВАРОВА Е.С.
Published: February 2025

Разнообразие видов трудовых договоров вызывает сложность в определении характерных черт каждого вида. В статье рассмотрены отличительные признаки каждого вида трудового договора. Сравнивается заключение договора гражданско-правового характера с физическим лицом и трудовых договоров с надомным и дистанционным работником. Рассмотрены как схожие, так и отличительные признаки каждого договора; отличительные признаки трудового договора с дистанционным и надомным работником.

Introduction. Today there are various types of labor contracts execution of any type of contract has certain peculiarities. Civil contract is one more form of execution of contract with a physical person. Such contract has also its distinguishing peculiarities. The goal of the research is to reveal similar and distinguishing features of the studied types of labor contracts in order to effectively use them in the economic affairs of an enterprise. The authors of economic publications often compare civil contracts with execution of labor contract. The definitive features of execution of civil contracts with a physical person and execution of labor contract with a remote worker and an outworker are also considered in the paper. The distinguishing peculiarities of labor contract execution with a remote worker and an outworker are revealed. A comparative analysis of the data of two types of contracts and execution of contract with a physical person under the civil contract is carried out. Results. Certain aspects (components) for the notion “remote worker” and the notion “outworker” are presented. On the results of the comparative analysis, a table comprising the distinguishing characteristics of each notion in the revealed peculiar features was drawn up.
Методический подход к оценке устойчивого развития сельских территорий
Authors: Семенова Н.Н. , Еремина О.И. , Иванова И.А.
Published: February 2025

Проведён анализ существующих подходов к раскрытию экономического содержания дефиниции устойчивое развитие сельских территорий в отечественной и зарубежной практике. Обоснован авторский подход к оценке устойчивого развития сельских территорий, предусматривающий расчёт комплексного интегрального показателя по трём составляющим устойчивого развития (экономическое, социальное, экологическое). С учётом предлагаемой авторами методики проведён анализ устойчивого развития сельских территорий субъектов Российской Федерации.

Introduction. In the context of increasing global economic instability, it is important to achieve the sustainable development of the country and its regions. Socioeconomic effectiveness of the development of the country as a whole is largely determined with the sustainable development of its rural areas. In the face of new global risks and opportunities, rural areas become the most important economic and demographic component of any state. The goal of the study is to develop a methodological approach to assess the sustainable development of rural areas.Results. The analysis of the existing approaches to the disclosure of economic content of definition sustainable development of rural areas in domestic and foreign practice was carried out. The authors substantiate a methodical approach to the assessment of sustainable development of rural areas which includes four consecutive stages. The analysis of the sustainable development of rural areas in the federal districts of the Russian Federation was conducted. As a tool for assessing the sustainable development of rural areas of the federal districts of Russia, a comprehensive integrated indicator of sustainable development is taken. It is used as a geometric mean of particular indicators (social, economic and environmental). Conclusion. The proposed methodology for assessing the sustainable development of rural areas can not only determine the level of their sustainable development in general, but also makes it possible to assess the level of sustainability of a certain area (economic, social, environmental) and assess the factors affecting the sustainable development of rural areas in dynamics. The results of the assessment of the factors determining the sustainability of the development of rural areas are necessary for the development by the government authorities of the relevant measures and programs for their further development.