bluuebunny/crossref_metadata_2025 huggingface dataset:
Ekstraksi Pola Iris Mata Berwarna Biru dan Cokelat dengan Metode GrayLevel Cooccurrence Matrix
Authors: Mentari Yunia , Nurhasanah Nurhasanah , Sanubary Iklas
Published: December 2023

Penelitian ekstraksi pola iris mata berwarna biru dan cokelat dengan metode graylevel coocurrence matrix (GLCM)telah dilakukan untuk mengetahui perbedaan pola setiap fitur pada GLCM terhadap perbedaan warna iris mata. Penelitian ini menggunakan data citra iris mata terdiri dari 10 citra iris mata berwarna biru dan 10 citra iris mata berwarna cokelat. Tahap preprocessing dimulai dengan memotong citra kemudian dilanjutkan dengan mengubah citra dalam bentuk aras keabuan, membuat histogram dan ekualisasi histogram untuk memperbaiki kualitas citra. Proses selanjutnya menghitung ciri statistik menggunakan gray level cooccurrence matrix (GLCM) 4 arah (0˚, 45˚, 90˚ dan 135˚) dengan jarak d=1. Parameter yang digunakan ada 8 yaituenergy, contras, variance, correlation, sum average, sum entropy, sum variance, maximum probability. Hasil yang diperoleh pada citra iris mata biru memiliki tingkat keabuan lebih besar dibandingkan dengan citra iris mata cokelat (fitur maximum probability). Tingkat perbedaan level keabuan terlihat lebih besar pada citra iris mata biru dari pada citra iris mata cokelat (sum variance). Citra iris mata biru mempunyai tingkat keabuan rata-rata paling tinggi dibandingkan citra iris mata cokelat (variance).Citra iris mata biru memiliki nilai keseragaman lebih tinggi sedangkan pada citra iris mata cokelat memiliki tingkat keabuan yang konstan (energy).Pada citra iris mata biru warna yang dihasilkan citra lebih gelap dibandingkan dengan citra iris mata cokelat citra terlihat lebih terang (contrast). Tekstur yang dimiliki citra iris mata biru lebih halus dari pada citra iris mata cokelat karena memiliki nilai kerapatan piksel yang lebih tinggi (sum average). Citra iris mata cokelat terlihat hubungan yang linear antara tingkat keabuan dari pasangan piksel dari pada citra iris mata biru (correlation). Citra iris mata cokelat memiliki level keabuan yang acak atau nilai ketidakseragaman yang lebih tinggi dibandingkan dengan citra iris mata biru (sum entropy). Tekstur yang dimiliki citra iris mata cokelat lebih besar dari pada citra iris mata biru. Maka, citra iris mata berwarna biru dan cokelat dapat dibedakan menggunakan ekstrasi ciri GLCM. Kata kunci : Ekstraksi Pola, Citra Iris Mata, GLCM
Estimasi Curah Hujan Di Kota Pontianak Berdasarkan Suhu, Ketebalan dan Tekanan Puncak Awan
Authors: Niyati Nurasniyati , Muliadi Muliadi , Adriat Riza
Published: December 2023

Telah dilakukan penelitian mengenai estimasi curah hujan berdasarkan tekanan, suhu dan ketebalan  puncak awan untuk studi kasus Kota Pontianak. Penelitian ini bertujuan untuk menentukan karakteristik jenis awan di Kota Pontianak dan pengaruhnya terhadap curah hujan. Penelitian ini menggunakan data curah hujan yang dikorelasikan terhadap tiga variabel yaitu suhu, ketebalan dan tekanan puncak awan. Hasil yang diperoleh yaitu jenis awan yang paling banyak di Kota Pontianak pada tahun 2015 dan 2016  adalah jenis awan tinggi yaitu jenis Cirrostratus. Persentase  jenis  awan Cirrostratus pada tahun 2015 sebesar  41%  dan  tahun  2016  sebesar  49%. Hasil korelasi antara  suhu puncak awan, ketebalan puncak awan, dan tekanan puncak awan terhadap curah hujan secara berturut-turut sebesar -0,29, -0,35 dan 0,41 menunjukkan korelasi rendah. Dapat disimpulkan bahwa ketebalan puncak awan berpengaruh terhadap curah hujan karena semakin tebal awan yang terbentuk maka kemungkinan besar akan terjadi hujan dengan koefisien korelasi sebesar 0,41.
Pengaruh ENSO dan Dipole Mode Terhadap Curah Hujan di Kota Pontianak
Authors: Novi Maria Brigita , Muliadi Muliadi , Adriat Riza
Published: December 2023

El Nino Shouthern Oscillation (ENSO) merupakan fenomena cuaca yang terjadi di Samudra Pasifik, sedangkan Dipole Mode (DM) adalah fenomena interaksi atmosfer laut yang terjadi di Samudra Hindia. Pada penelitian ini telah dilakukan analisis pengaruh ENSO dan DM terhadap curah hujan di Kota Pontianak dari tahun 1995 sampai dengan tahun 2014 menggunakan metode regresi linier sederhana dan menentukan koefisien korelasi dengan menggunakan data indeks Nino 3.4 dan Dipole Mode dengan data curah hujan. Tujuan dari penelitian ini untuk mengetahui pengaruh Enso dan Dipole Mode terhadap curah hujan di Kota Pontianak. Hasil analisis menunjukkan korelasi ENSO terhadap curah hujan 0,56-0,63, korelasi DM terhadap curah hujan 0,45-0,59. Sehingga dapat disimpulkan ENSO dan DM berpengaruh sedang terhadap curah hujan di Kota Pontianak.
Survei Kedalaman Air Tanah di Kabupaten Jepara Menggunakan Metode Geolistrik (Vertical Electrical Sounding)
Authors: Fitrianto Taufik Nur , Supriyadi Supriyadi
Published: December 2023

Telah dilakukan pengambilan data untuk mengetahui kedalaman air tanah di wilayah Kabupaten Jepara. Penelitian dilakukan menggunakan metode geolistrik resistivitas konfigurasi schlumberger. Pengukuran dilakukan pada 7 desa di Kabupaten Jepara. Panjang lintasan pengukuran adalah 400m. Data awal diolah menggunakan software Microsoft Excel untuk mendapatkan nilai resistivitas semu dan inversi 1D dmenggunakan software IP2WIN untuk mendapatkan nilai resistivitas setiap lapisannya. Diketahui bahwa kedalaman air tanah di Kabupaten Jepara bervariasi antara 6,04 – 62,3 m yaitu, pada kedalaman 13,1 m di Desa Rau Kecamatan Kedung, pada kedalaman 7,98 m dan 25,1 m di Desa Teluk Awur Kecamatan Tahunan, pada kedalaman 7,1 m di Desa Kelet Kecamatan Keling, pada kedalaman 62,3 m di Desa Jambu Kecamatan Mlonggo, pada kedalaman 9,84 m dan 51,7 m di Desa Bandungrejo Kecamatan Kalinyamatan, pada kedalaman 6,04 m di Desa Nalumsari Kecamatan Nalumsari dan pada kedalaman 9,81 m di Desa Gedangan Kecamatan Welahan.
Identifikasi Potensi Mineral Mangan (Mn) Berdasarkan Anomali Medan Magnetik pada Bagian Selatan Lembar Kupang, Nusa Tenggara Timur
Authors: Hermawan Rikki , Putra Yoga Satria , Perdhana Radhitya
Published: December 2023

Dilakukan identifikasi potensi sebaran mineral Mangan (Mn) di daerah Kupang, Nusa Tenggara Timur berdasarkan nilai anomali medan magnetik lembar Kupang dengan melakukan pemodelan 3D pada citra distribusi anomali medan magnet residual yang berkorelasi dengan Formasi Bobonaro. Formasi Bobonaro diduga sebagai formasi pembawa mineral Mn. Penentuan lokasi yang diduga memiliki potensi mineral Mn didasarkan pada keberadaan dugaan nilai suseptibilitas Mn yaitu 0,0005-0,001 SI pada penampang 3D suseptibilitas tiap-tiap lokasi pemodelan. Dari lima lokasi pemodelan, diketahui keberadaan dugaan nilai suseptibilitas Mn berada pada batas kontras antara anomali medan magnet tinggi dan rendah. Dalam penelitian ini daerah yang diduga berpotensi memiliki sebaran Mn adalah lokasi pada pemodelan 3 yang ditunjukan dengan nilai suseptibilitas Mn yang tersebar hingga dekat permukaan, dan berada pada Formasi Bobonaro.
Prediksi Awal Musim Hujan Menggunakan Metode Jaringan Syaraf Tiruan Backpropagation
Authors: Wibawanty Dinda Rosyia , Simanjuntak Presli Panusunan
Published: December 2023

Informasi prediksi Awal Musim Hujan merupakan salah satu rekomendasi utama bagi petani dalam menentukan musim tanam. Oleh karena itu, penelitian ini bertujuan untuk memprediksi Awal Musim Hujan dengan menggunakan metode statistik yang telah banyak diuji kehandalannya yakni metode Jaringan Syaraf Tiruan (JST) Backpropagation. Arsitektur model JST yang digunakan terdiri dari 1 hidden layer, 2 hidden neuron dan 3 neuron input dengan fungsi aktivasi sigmoid biner. Penelitian dilakukan pada titik Stasiun Klimatologi Palembang dengan menggunakan data curah hujan harian periode 1981-2017. Prediktor yang digunakan meliputi suhu muka laut (SST), angin zonal 850 mb dan precipitable water (PW). Hasil penelitian menunjukkan prediksi curah hujan dasarian memiliki nilai korelasi antara 0.3 hingga 0.6 dengan RMSE berkisar antara 29 hingga 53 mm per sub-musim. Prediksi awal musim hujan mencapai kategori “Sesuai Prakiraan” sebesar 42.86%.
Identifikasi Bidang Gelincir Daerah Rawan Longsor Desa Betenung Kecamatan Nanga Tayap
Authors: Santi Maria Aventri , Putra Yoga Satria , Zulfian Zulfian
Published: December 2023

Desa Betenung, Kecamatan Nanga Tayap, Kabupaten Ketapang merupakan daerah yang rawan akan terjadinya tanah longsor. Desa Betenung merupakan daerah perbukitan. Letak bidang gelincir diidentifikasikan dengan menggunakan metode geolistrik resistivitas. Pada penelitian ini, telah diidentifikasi bidang gelincir di daerah rawan longsor di Desa Betenung Kecamatan Nanga Tayap dengan menggunakan konfigurasi Wenner-Schlumberger. Pengambilan data dilakukan dengan lima lintasan. Empat lintasan memiliki panjang lintasan adalah 141 meter, satu lintasan memiliki panjang lintasan adalah 93 meter. Jarak antar elektroda adalah 3 meter. Hasil analisa penampang resistivitas dua dimensi (2D) dari lima lintasan menunjukan bahwa bidang gelincir tanah longsor berupa lempung pasiran dengan nilai resistivitas antara 50 Ωm sampai 1179.5 Ωm. Bidang gelincir di daerah penelitian terdapat pada kedalaman 3 – 7 meter dengan tipe tanah longsor berupa tipe rayapan.Kata kunci: bidang gelincir, geolistrik, resitivitas, Wenner - Schlumberger
Pengaruh Kerapatan Vegetasi terhadap Suhu Permukaan menggunakan Data Landsat 8 (Study Kasus: Kota Pontianak, Kalimantan Barat)
Authors: Fitriana Zuliya Eka , Putra Yoga Satria , Zulfian Zulfian
Published: December 2023

Pesatnya pertambahan penduduk dan perkembangan infrastruktur di Kota pontianak telah menimbulkan perubahan kerapatan vegetasi. Perubahan kerapatan vegetasi (NDVI) dapat berpengaru terhadap distribusi suhu permukaan (LST). Hal tersebut akan mempengaruhi perubahan iklim dan cuaca. Suhu permukaan merupakan salah satu faktor penyebab meningkatnya energi panas di permukaan bumi. Tujuan penelitian ini adalah untuk mengetahui pengaruh kerapatan vegetasi terhadap perubahan distribusi suhu permukaan di Kota Pontianak melalui data satelit Landsat 8 tahun 2013 – 2019. Hasil penelitian menunjukkan bahwa di Kota Pontianak telah terjadi perubahan distribusi suhu permukaan yang terletak di daerah panas yaitu daerah urban dan daerah non-urban. Daerah tersebut dicirikan menurunnya nilai kerapatan vegetasi dan meningkatnya nilai suhu permukaan. Nilai rata-rata suhu permukaan tertinggi tahun 2013 – 2019 sebesar 30,8°C yang termasuk kedalam kategori panas. Kecenderungan naik ini diduga sebagai akibat adanya perubahan lahan bervegetasi menjadi daerah yang lebih terbuka seperti lahan kosong dan daerah terbangun.Kata Kunci : Suhu Permukaan, LST, Kerapatan Vegetasi, NDVI, Landsat 8.
Studi Sensitivitas Aliran Dalam Kanal Terbuka Menggunakan Pendekatan Komputasi Dinamika Fluida Model Turbulen Smagorinsky
Authors: Aswati Tiara Aprileonadha , Putra Yoga Satria , Kushadiwijayanto Arie Antasari
Published: December 2023

Pada penelitian ini, simulasi dibangun menggunakan perangkat lunak OpenFOAM dengan model turbulen LES-Smagorinsky. Domain komputasi dibuat berdasarkan referensi ilmiah dengan panjang kanal adalah 2 m, tinggi kanal adalah 0.5 m dan kedalaman air adalah 0.25 m. Tahapan validasi telah dilakukan dengan menguji variasi grid (Δx dan Δy), nilai energi kinetik turbulen k dan panjang kanal L. Dengan membandingkan profil kecepatan dari data eksperimen maka diperoleh ukuran terbaik untuk grid domain komputasi yaitu Δx  = 0.1 m, Δy = 0.01 m, energi kinetik turbulen k = 0.004 m2/s2, dan panjang kanal L = 2 m. Simulasi aliran air dalam kanal terbuka telah berhasil dibangun yang ditunjukkan dengan profil distribusi kecepatan yang mendekati data acuan yaitu data Coleman (1986). Sensitivitas pada ukuran grid terbaik yang dihasilkan tidak terlalu besar. Nilai korelasi dan error yang dihasilkan adalah sebesar 0.998 dan 0.014.Kata kunci: OpenFOAM, LES-Smagorinsky, Komputasi dinamika fluida.
Analisis Pengaruh Ukuran Serat Terhadap Sifat Fisis dan Mekanis Papan Komposit Berbahan Serat Batang Pisang Kepok
Authors: Meliana Meliana , Asri Asifa
Published: December 2023

Pada penelitian ini, telah dibuat papan komposit dengan filler serat batang pisang dan matriks berupa urea formaldehida. Untuk melihat pengaruh ukuran serat batang pisang kepok pada sifat fisis dan mekanis papan komposit yang dipabrikasi, dilakukan lima variasi ukuran serat pada komposisi papan komposit, yaitu serat yang lolos ayakan mesh 6, mesh 7, mesh 8, mesh 10, dan mesh 12. Papan ini berdimensi (30 × 30 × 1) cm dengan target kerapatan 0,7 g/cm3. Suhu yang digunakan saat proses pengempaan adalah 150  selama 10 menit dengan tekanan 25 Pa. Berdasarkan hasil analisis pengaruh ukuran serat terhadap sifat fisis dan mekanis papan komposit berbahan serat batang pisang kepok, ditemukan bahwa semakin besar ukuran mesh pada ayakan serat batang pisang kepok yang semakin menurun kualitas papan komposit yang dihasilkan. Secara umum, ukuran serat yang paling baik untuk dijadikan bahan baku pembuatan papan komposit serat adalah ukuran serat kasar/panjang. Pada penelitian ini, sampel dengan ukuran serat lolos mesh 7 merupakan sampel yang paling baik. Nilai pengujian sifat fisis dan mekanis untuk papan komposit serat lolos mesh 7 adalah kerapatan dengan nilai 0,72 g/cm3, kadar air 11,11%, pengembangan tebal 35,83%, modulus of elasticity (MOE) 574,81 N/mm2, modulus of rupture (MOR) 4,55 N/mm2, keteguhan rekat 0,04 N/mm2, dan kuat pegang sekrup 129,605 N. Nilai hasil pengujian yang sudah memenuhi Japanese Industrial Standard (JIS) A 5908 tahun 2003 adalah nilai kerapatan dan nilai kadar air
Analisis Tingkat Kerawanan Banjir Kabupaten Mempawah Provinsi Kalimantan Barat Menggunakan Metode Overlay dengan Scoring Berbasis Sistem Informasi Geografis
Authors: Tri Mario Andika , Putra Yoga Satria , Adriat Riza
Published: December 2023

Kabupaten Mempawah merupakan satu diantara Kabupaten di Kalimantan Barat yang wilayahnya mempunyai potensi terjadinya banjir. Penelitian ini bertujuan untuk menganalisis tingkat kerawanan banjir di Kabupaten Mempawah Provinsi Kalimantan Barat. Kegunaan dari penelitian ini adalah sebagai acuan dasar peringatan dini yang dijadikan pedoman rancangan penanggulangan bencana dan kebijakan perencanaan tata ruang wilayah. Metode yang digunakan dalam penelitian ini adalah metode overlay dengan scoring berbasis sistem informasi geografis dengan melihat pengaruh masing-masing parameter banjir yaitu kemiringan, ketinggian, curah hujan, tutupan lahan dan buffer sungai. Hasil penelitian menunjukan Kabupaten Mempawah memiliki 3 tingkat kerawanan banjir dengan klasifikasi yaitu rawan, cukup rawan dan aman. Tingkat rawan banjir merupakan kawasan terluas dengan luasan area 103966,20 ha (54,21%) dari luas Kabupaten Mempawah secara keseluruhan, sedangkan tingkat cukup rawan banjir seluas 80770,60 ha (42,11%) dan tingkat aman banjir yang merupakan kawasan dengan luas terkecil yaitu luas area 7055,54 ha (3,68%) dari total luas wilayah Kabupaten Mempawah sebesar 191792,34 ha. Kata Kunci : Banjir, peringatan dini, metode overlay, scoring, parameter banjir, tingkat kerawanan banjir.
Analisis Tingkat Kebisingan pada Area Pasar Lama Kabupaten Ketapang Kalimantan Barat
Authors: Rusmayanti Rusmayanti , Nurhasanah Nurhasanah , Zulfian Zulfian
Published: December 2023

Telah dilakukan penelitian tentang tingkat kebisingan di Pasar Lama Kabupaten Ketapang Kalimantan Barat. Tujuan penelitian ini mengetahui tingkat kebisingan dan waktu terjadi tingkat kebisingan tertinggi di Pasar Lama Kabupaten Ketapang. Metode pengukuran yang digunakan mengacu pada nilai ambang batas (NAB) kebisingan menurut Surat Keputusan Menteri Lingkungan Hidup No.48/MENLH/11/1996. Alat yang digunakan untuk pengukuran tingkat kebisingan adalah Sound Level Meter. Dari hasil penelitian ini, diperoleh tingkat kebisingan dilakukan di Pasar Lama Kabupaten Ketapang Kalimantan Barat pada hari libur dan hari kerja, kebisingan yang paling tinggi berada pada titik C (Pasar Melati), pada pukul 10.00 WIB yaitu sebesar 79,7 dB dan paling rendah berada pada titik A (Masjid Babul Khair), pada pukul 04.00 WIB yaitu sebesar 38,3 dB dan nilai tingkat kebisingan siang malam (LSM) berkisar 58,65 – 72,40 dB. Pasar Lama Kabupaten Ketapang Kalimantan Barat memiliki beberapa nilai tingkat kebisingan yang melebihi nilai ambang batas.Kata kunci: Kebisingan, Nilai ambang batas (NAB), Nilai LSM.
Sebaran Mineral Logam Bijih Besi Berdasarkan Anomali Magnetik Daerah Pelaihari, Kabupaten Tanah Laut
Authors: Syaripudin Syaripudin , Arman Yudha , Muhardi Muhardi
Published: December 2023

Sebaran mineral logam bijih besi daerah Pelaihari, Kabupaten Tanah Laut telah diidentifikasi berdasarkan nilai anomali magnetik. Penelitian ini menggunakan peta anomali magnetik lembar Banjarmasin yang telah dilakukan digitasi. Identifikasi sebaran mineral logam bijih besi dilakukan dengan menganalisis peta anomali magnetik regional dan residual, Horizontal Derivative, peta geologi, dan peta sebaran mineral logam lembar Banjarmasin. Sedangkan pemodelan inversi 3D dilakukan untuk mengidentifikasi sebaran nilai suseptibilitas batuan bawah permukaan. Hasil penelitian menunjukkan bahwa sebaran mineral bijih besi primer terdapat di 5 (lima) lokasi, yaitu 4 (empat) lokasi di bagian selatan dan barat daya dengan nilai suseptibilitas -0,0016 SI hingga 0,0781 SI, sedangkan 1 (satu) lokasi di bagian timur laut dengan nilai suseptibilitas 0,0090 SI hingga 0,0781 SI. Lokasi penelitian didominasi bijih besi primer karena berada pada formasi batuan vulkanik purba yang ditandai dengan adanya dataran tinggi meratus. Adapun mineral bijih besi ini berasosiasi terhadap mineral magnetit yang termasuk dalam jenis ferromagnetik.
Sintesis Fotokatalis TiO2 pada Material Penyangga
Authors: Arief Ilham Lazuardy , Hasanuddin Hasanuddin , Asri Asifa
Published: December 2023

Telah dilakukan penelitian berupa modifikasi material fotokatalis berbasis titanium dioksida (TiO2) pada material penyangga polipropilena (PP). Material fotokatalis adalah jenis material yang digunakan dalam beberapa proses degradasi senyawa organik dengan bantuan aktivasi oleh foton. Modifikasi dilakukan menggunakan teknik thermal milling. Teknik ini memanfaatkan Heat Deflecting Temperature untuk menempelkan TiO2 pada permukaan PP. Temperatur yang digunakan adalah 175°C dan dilakukan selama 40 menit. Perbandingan PP dan TiO2 yang digunakan sebanyak 4:1 dengan massa masing-masing 140 g dan 35 g. Hasil penelitian ini dapat dilihat dari tiga hal yakni visual material hasil sintesis, perubahan massa, serta hasil visual proses fotodegradasi menggunakan material hasil sintesis. Visual material hasil sintesis menunjukkan permukaan yang kasap serta terjadi pertambahan massa sebesar 1,4 g  untuk tiap 47 g. Hal ini menunjukkan bahwa PP telah berlapis TiO2 sehingga dapat dikatakan PP mampu menjadi material penyangga TiO2 sebagai material fotokatalis. Untuk proses fotodegradasi, terjadi perubahan warna pada limbah artifisial. Perubahan yang terjadi adalah limbah berangsur-angsur memudar. Hal ini menunjukkan performa material hasil sintesis mampu melakukan proses fotodegradasi. Pada proses ini juga tidak ditemukan adanya residu tambahan sehingga penelitian ini menunjukkan keberhasilan PP dalam solusi untuk menciptakan metode degradasi tanpa residu tambahan.
Thermally Stable Phenylethylammonium-based Perovskite Passivation: Spontaneous Passivation with Phenylethylammonium Bis(trifluoromethylsulfonyl)imide under Deposition of PTAA for Enhancing Photovoltaic Performances of Perovskite Solar Cells
Authors: Nishimura Naoyuki , Kanda Hiroyuki , Katoh Ryuzi , Murakami Takurou N.
Published: December 2023

Perovskite passivation has been vital for obtaining highly efficient and stable perovskite solar cells (PSCs). Phenylethylammnonium (PEA)-based passivator is one of the most major categories as it is effective in improving PSC performances taking advantages of its large absorption energy over perovskite surface. However, this conventional passivator suffers from thermal stability issues; under thermal stress even at moderate temperature (e.g., 50℃) for several minutes, the overlayer of the perovskite passivated with PEA iodide salt (PEAI) transforms to a two-dimensional perovskite of (PEA)2PbI4, which hampers carrier transfer, thus negating the passivation effects and/or degrading the photovoltaic (PV) performances. Herein, we propose a novel yet simple strategy to address the thermal stability issue using a newly synthesized PEA bis(trifluoromethylsulfonyl)imide (PEA-TFSI) additive for poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine (PTAA) hole transport materials (HTMs). Upon the deposition of the PTAA HTM solution with a PEA-TFSI additive over the perovskite layers, the PEA cations spontaneously passivated the perovskite, forming a monolayer-like passivation overlayer. The resulting PEA-based passivation did not cause crystallization at the elevated temperature of 85℃; hence, it did not cause PV performance drop due to the thermal stress and retained a higher PV performance compared to the samples with the conventional Li-TFSI additive for over 800 h. Besides, compared to PSCs with Li-TFSI, PSCs with PEA-TFSI exhibited an improvement in stability under humid conditions (30℃, 50% relative humidity) for over 600 h, taking advantage of the resulting hydrophobicity. The optimal PEA-TFSI additive enhanced the PV performance, reaching a power conversion efficiency of up to 22.1% (21.2% in the quasi-steady state). These values are relatively high in the PTAA-based PSCs with an n-i-p structure particularly without using lithium species, which is considered to be detrimental for PSCs. These high PV performances were most likely attributed to improved affinity at the interface between PTAA and the perovskite, which is hardly attainable by an aliphatic ammonium passivator, and the PEA passivation effects. These results provide novel insights into the commonly used PEA-based perovskite passivation particularly in combining thermally stable PTAA HTMs and the promising alkylammonium spontaneous passivators, which spurs the further development of PSCs.
Drug–drug conjugates of MEK and Akt inhibitors for RAS-mutant cancers
Authors: Fujita Hikaru , Arai Sachiko , Arakawa Hiroshi , Hamamoto Kana , Kato Toshiyuki , Arai Tsubasa , Nitta Nanaka , Hotta Kazuki , Hosokawa Natsuko , Ohbayashi Takako , Takahashi Chiaki , Inokuma Yasuhide , Tamai Ikumi , Yano Seiji , Kunishima Munetaka , Watanabe Yoshihiro
Published: December 2023

Controlling RAS mutant cancer progression remains a significant challenge in developing anticancer drugs. Whereas Ras G12C-covalent binders have received clinical approval, the emergence of further mutations, along with the activation of Ras-related proteins and signals, has led to resistance to Ras binders. To discover novel compounds to overcome this bottleneck, we focused on the concurrent and sustained blocking of two major signaling pathways downstream of Ras. To this end, we synthesized 25 drug–drug conjugates (DDCs) by combining the MEK inhibitor trametinib with Akt inhibitors using seven types of linkers with structural diversity. These DDCs were evaluated for their cell permeability/accumulation and ability to inhibit proliferation in RAS-mutant cell lines. A representative DDC was further evaluated for its effects on signaling proteins, induction of apoptosis-related proteins, and the stability of hepatic metabolic enzymes. These in vitro studies identified a series of DDCs, especially those containing a furan-based linker, with promising properties as agents for treating RAS-mutant cancers. Additionally, in vivo experiments in mice using the two selected DDCs revealed prolonged half-lives and anticancer efficacies comparable to those of trametinib. The DDCs developed in this study have potential as drug candidates for the broad inhibition of RAS-mutant cancers.
TRABAJO EN EQUIPO Y EFICIENCIA LABORAL EN LA EMPRESA VIDRIERA DE LA ROSA EN SAN JUAN DE MIRAFLORES
Authors: Lozano Nación Adrian Quinto
Published: December 2023

El presente estudio tuvo como objetivo Determinar la relación entre Trabajo en equipo y eficiencia laboral en la empresa vidriera De la Rosa en San Juan de Miraflores, 2023. La metodología de estudio fue de tipo aplicada, con un diseño no experimental, bajo un enfoque cuantitativo y nivel correlacional, asimismo, la población y muestra estuvo conformada por 26 trabajadores. Para la recolección de datos se empleó como técnica la encuesta y como instrumento el cuestionario que constó de 18 interrogantes para la variable trabajo en equipo y 14 interrogantes para la variable eficiencia, de acuerdo a la escala de Likert. Para el procesamiento de datos se usó el software estadístico SPSS Vers-27, elaborando tablas simples de doble entrada, frecuencia relativa y absoluta. Finalmente se concluyó que existe una correlación positiva muy fuerte entre las variables trabajo en equipo y eficiencia, alcanzando un valor de r=0,862, ratificando una relación directa y proporcional entre ambas; a la vez, se logró un sig. Bilateral de 0.00 menor al 0,05, por ello se llegó a rechazar la hipótesis nula y aceptar la hipótesis alterna
Features of medical enterprise management in modern conditions
Authors: Skrypnyk Oleksandr
Published: December 2023

The article examines the problem of identifying characteristic differences in the implementation of management of medical enterprises in modern conditions. The terminological construct "modern conditions" in relation to the study of public management aspects in the field of health care covers the time period from 2015 to 2022. It has been confirmed that it was during this period that the domestic management system of medical enterprises underwent radical changes.
It was established that the most characteristic differences in the implementation of the management of medical enterprises, compared to the previous period of sustainable development, were in the plane of strategic planning of the development of the medical industry; structural and functional restructuring of the network of medical institutions, as well as new approaches in the application of the economic mechanism of state management in the field of health care and digitization of management activities. It is argued that the start of the development of a new model of management of the national health care system is public recognition of the priority and necessity of implementing medical reform in Ukraine (2015). The implementation of the medical reform, which is recognized as the flagship of the development of Ukraine in the conditions of the European integration course, provided for the phasing of structural and functional changes in the management system. It has been proven that the course of the COVID-19 pandemic and the full-scale invasion of the Russian aggressor on the territory of Ukraine became challenges for the medical industry, which significantly slowed down the pace of its structural and functional restructuring. It was determined that the effectiveness of management of medical institutions in modern conditions is based on the principles of competitiveness and patient-orientation (quality, safety, availability of medical services). For this purpose, new management models of medical enterprises should be implemented on the basis of strategic planning; improve information and analytical support of management processes; increase the level of professionalization of medical personnel; implement international quality standards for the provision of medical services, etc.
Theoretical aspects of the formation of anti-corruption policy from the perspective of public administration (based on the experience of developing countries)
Authors: Kotukov Oleksandr , Solovykh Vitalii
Published: December 2023

The article examines in detail issues related to the formation of anti-corruption policies and strategies aimed at preventing corruption, as well as establishing relationships with the public sector and management reforms. At the same time, the fight against corruption is defined as an integral part of the national anti-corruption policy and as such, which is a preventive mechanism for fighting corruption. The study is based on the examples of developing countries: Georgia, Indonesia, Nicaragua, Pakistan, Tanzania and Zambia, etc. These countries were selected based on the following criteria: the existence of a clear national anti-corruption policy or strategy; supporting efforts to fight corruption by international development partners. It is noted that anti-corruption measures should be included in a coordinated policy, and not carried out in isolation, and approaches to the fight against corruption cannot be limited only to technocratic solutions aimed at solving certain systemic problems. The article emphasizes the sphere of public policy and thus recognizes the political nature of anti-corruption work. In addition, the emphasis is on a strategic approach, which is becoming more evident, and the prevention and fight against corruption is not an end in itself, but promotes integrity and accountability, as well as the proper management of public affairs, which are key components of effective governance and important prerequisites for sustainable development. The authors prove that the development of anti-corruption policy does not follow a linear model, where implementation is a simple implementation of government documents in practice, and failures are mostly explained by the lack of political will, resources or understanding of the nature of the problem. The article examines the advantages and disadvantages of legislative directions for the formation of anti-corruption policy in developing countries.
WAYS OF TRANSFORMING INSTITUTIONAL MECHANISMS OF PUBLIC ADMINISTRATION IN UKRAINE: FROM INFORMATION THREATS TO HYBRID WARS
Authors: Pomaza-Ponomarenko Alina , Novikov V.
Published: December 2023

It was established that in the process of public administration, state bodies face problems that require a special definition and response to them, through the use of unique and effective management tools, such as the "manual management mode". It is in such situations that manual management as precision and anti-crisis management is fully justified. It is substantiated that with the help of the operative application of the manual control method as a non-standard method with the settings of "fine and operative adjustment", the subjects of state administration can achieve the required effect. Under such conditions, it is objectively possible to achieve the set goal in the required time under the changed circumstances. It was found that there are not isolated cases when the domestic system of public administration lacks such approaches, especially in crisis conditions and the information-hybrid war waged against it by the Russian Federation. It is insisted that the proper functioning of the entire institutional system of public administration cannot be ensured all the time in the mode of manual management by the top leadership of the state for obvious reasons. Otherwise, it can lead to the effect of "institutional trap". Manual state management cannot be deep and comprehensive, but only local and temporary, and can even create a separate management system in the general institutional system of public management. It was found that this contradicts the principle of system optimality, because it leads to the disturbance of the optimal state of such a system. Therefore, the manual management mode can be considered as a means of local "adjustment" of the public management system, which is carried out by the managing (coordinating) element in a forced mode to solve existing problems and achieve certain goals depending on the development trend of external and internal system factors. In this context, it is possible to recommend bringing manual management "out of the shadows" by giving it an official status, legislated as the possibility of its application within the framework of a single management system.
PROGRAM-TARGET APPROACH TO THE DEVELOPMENT OF PHYSICAL CULTURE AND SPORTS IN UKRAINE DURING THE PERIOD OF MARITAL STATUS
Authors: Khozhylo Iryna
Published: December 2023

The article presents the results of an up-to-date scientific study of the problems of applying the program-targeted approach in the development of physical culture and sports in Ukraine during the period of martial law. The relevance of the work is due to the fact that during the period of martial law, the Ukrainian state, in accordance with the norms of the Basic Law of the state, must provide state guarantees of citizens' social rights. The purpose of the research is to determine the theoretical and practical approaches to the application of the program-target approach in the implementation of the national social program for the development of physical culture and sports in Ukraine during the period of martial law. It is emphasized that in Ukraine, the development of physical culture and sports is an established priority of state policy both in the period of sustainable development and in the period of crisis threats (the COVID-19 pandemic, war). It has been proven that at the level of implementation of the constitutional guarantees of the state, the sphere of physical culture and sports does not have an individualized legal anchoring in the Constitution of Ukraine. But it has the largest legal affiliation in the field of health care (Article 49 of the Constitution of Ukraine), and state guarantees are formulated as the state's care for the development of physical culture in Ukraine. The main characteristics of the state target program for the development of physical culture and sports are defined: sociality, state guarantee, interdisciplinary, polysubjectivity. At the same time, it has been proven that in the state targeted social program for the development of physical culture and sports, the role of several central executive bodies is declarative in nature, because their participation is not financed by the main manager of funds for the implementation of the program's activities. It is substantiated that the significant decrease in the integrated performance indicator of the implementation of the state social program for 2022, in comparison with previous years, is explained exclusively by the negative influence of the factor of full-scale war. It was determined that the implementation of the state targeted social program for the development of physical culture and sports correlates with the tasks of the WHO Global Recommendations for national governments regarding the development of physical activity for the health of the nation.
Conditions of eefective social interaction of students of younger classes during distance learning
Authors: Shvedova Yaroslava , Sydorenko Elizaveta
Published: December 2023

The development of social interaction skills is important in elementary school age, because the ability to cooperate, communicate, control and express one`s feelings, make compromises, oveercome difficulties, etc. is a guarantee for the further realization of the individual in life. Unfortunately, in modern realities, in connection with the martial law, younger-schoolchildren in most regions of Ukraine do not have the opportunity to be in daily "live" communication with peers and teachers, where social interaction skills are actively developed. The distance learning format with online lessons raises a number of pedagogical and psychological problems associated with a decrease in the effectiveness of interaction between teachers and students, students among themselves, which negatively affects the development of social interaction skills. In this context, new challenges arise for teachers (as well as far parents).
Legal grounds for justification of the legal status of the convicted as bearers of constitutional rights and freedoms
Authors: Diakova Albina
Published: December 2023

The article analyzes the legal grounds for substantiating the legal status of convicts as holders of constitutional rights and freedoms, as well as the need for a comprehensive analysis of this issue from the point of view of the science of constitutional law of Ukraine. After all, such an approach acts as an important and necessary doctrinal basis for comprehensive improvement of penitentiary legislation and the practice of its implementation. However, on the basis of the analysis of the achievements of modern legal doctrine, the fact is stated that such studies are clearly lacking. Instead, the main attention is paid to the study of the rights and freedoms of persons serving a sentence within the framework of other legal sciences. The thesis is proved that a look at the mentioned problem from the point of view of the science of constitutional law of Ukraine will allow to reveal those fundamental and most important aspects that cannot objectively be revealed within the scope of the study of other legal sciences. So, in particular, it will make it possible to look at the existing rights, freedoms and duties of convicts critically and from the perspective of high constitutional standards in this area, as well as to form a scientific basis for the fundamental reform of the legal status of convicts and the internal organizational mechanisms for ensuring it.

On the basis of the analysis of the constitutional text, a conclusion is made about the substantial attention of the constitution maker to the legal position of convicts in Ukraine. Such an approach gives this status not only stability and certainty in today's conditions, but also a clear direction for the future. In this regard, it is noted that the formation of the constitutional-legal status of convicts is carried out not only thanks to the specific constitutional norms concerning these issues, but also thanks to the legal properties of the Constitution of Ukraine as a normative-legal act and the nature of the punishment, based on the appointment of which a person acquires the status of a convicted person.

Taking into account the above, a general conclusion is made that today there is every reason to talk about the constitutional and legal status of convicts in Ukraine, which is due to the fact that such persons are full bearers of constitutional rights and freedoms. In this regard, it is relevant to look at the mentioned problem from the point of view of the science of constitutional law of Ukraine.
Legal regulation of the language issue in ukraine during a full-scale invasion russian federation
Authors: Smulska Alla
Published: December 2023

Introduction. Language is the main fundamental principle of the consolidation of Ukrainian society, the driver of changes in national consciousness, a tool that hardens and adds strength.

In the future, the formation of national solidarity, the formation of a highly cultural linguistic personality, the education of the younger generation, and in general, perhaps, our future existence as a nation, as a people, as a country, will depend on everyone's attitude towards the Ukrainian language.

The language issue has always been a field of interest: from the study of its paradoxical nature in general, to the study of political manipulations and speculations that arose every time it became profitable for someone; observation of language processes that took place in the country under the guise of "mutual influence" and "mutual enrichment", but in fact were a cover for the total fusion of most of Ukraine and the decline of the prestige of the Ukrainian language, etc.

Short list of main results. The article states that the history of legislation regulating the language issue in Ukraine begins with its bans during the statelessness of Ukraine as part of the Russian Empire and other states. The reasons for the long-term dominance of the Russian language in Ukraine and its consequences include centuries-old Russification, the migration of Russians to the territory of Ukraine, the physical destruction, deportation and forced emigration of Ukrainians outside of Ukraine, the formation of a "Russian" situation, when nationally conscious Ukrainians are forced to defend themselves from migrants. A number of normative acts, the adoption of which at different times was intended to regulate the language issue in Ukraine, are listed and characterized.

Conclusions. The language front is another front, but not a battlefield, but a new opportunity to defend our values. To know and communicate in Ukrainian is to protect national interests and bring our victory closer. War sets the tone. With the beginning of the full-scale Russian invasion, Ukrainians began to abandon the language of the aggressor en masse, and support for Ukraine as a single state is unprecedented in all the years of independence.
Features of the organizational and legal activities of the state employment service during military situation
Authors: Bezdieniezhna Daryna
Published: December 2023

Introduction. The article considers the main aspects of military situation as a special legal regime. The peculiarities of the organizational and legal activity of the State Employment Service during the period of military situation are determined.

Summary of the main results of the study. The author focused attention on the fact that the issue of the specifics of the organizational and legal activity of the State Employment Service is relevant under modern conditions in connection with the maintenance of the legal regime of military situation on the territory of Ukraine due to the armed aggression of the Russian Federation. It was emphasized that in the conditions of military situation it is extremely important to ensure prompt, proper and effective functioning of employment centers. It is noted that in order to ensure the effective operation of the sphere of employment and vital needs of the population during the period of military situation, the Office of the President of Ukraine, the Government, the Verkhovna Rada and other central bodies of the executive power make a number of quick, operative and effective decisions.

The main powers of the State Employment Service, which acts as the main body of executive power responsible for ensuring the realization of citizens' right to employment during military situation, are described. In the context of military situation, the activity of the State Employment Service is significantly different from what it carries out in peacetime. Attention is drawn to the fact that during military situation, the State Employment Service performs its tasks with a greater emphasis on support and assistance to citizens who suffered from military actions or lost their jobs due to the negative consequences of the conflict. It implements additional measures, such as the provision of social benefits, assistance in employment and support during the search for a new job. The State Employment Service is actively engaged in retraining and upskilling of workers to help them adapt to changes in the labor market that may arise as a result of the military situation. It develops and conducts special trainings, seminars and educational programs aimed at developing new skills and abilities needed in new conditions.

Conclusions. It was concluded that the organizational and legal activity of the State Employment Service is expanded in the conditions of military situation and plays a significant role in realizing the human right to work and receiving social services.
A study on alternative container-based technologies for virtualization of components deployment in software product lines
Authors: Gamzayev Rustam , Muradova Vusala , Tkachuk Mykola
Published: December 2023

The application containerization approach allows creating virtualization environments that could be used as a code. It allows running application in the isolated container that could be reproduced on any other hardware or cloud environment. One of the benefits of the containerization approach is the possibility to allocate necessary hardware resources like a RAM, CPU and storage. An approach to support agile development of software product lines (SPL) by using variability management techniques within the framework of the Scrum methodology has been proposed in the article. The main goal of the work is to analyze containers for virtualization of the runtime environment when deploying SPL. The information base for the proposed approach to managing the variability of deployment has been structured. The role of the approach in the general method of Scrum has been shown, and a conceptual diagram of the management process at the stage of application deployment has been proposed. The experimental analysis has been carried out and metrics for two types of containers, Docker and Vagrant, have been calculated. The following two metrics, namely, portability and productivity, for both containers have been analyzed. These metrics for the test component software solution have been calculated and executed in cloud environment with different configurations. The portability metric indicates how easily the application can be migrated to other platform basing on the time required to start container with the application. The second metric is the time necessary for the same operations in different container.
BREMSSTRAHLUNG FORMATION IN THE DUAL ENERGY METHOD FOR RADIOGRAPHY OF THE UNAUTHORIZED EMBEDDING
Authors: Rudychev V. G. , Girka I. O. , Rudychev D. V. , Rudychev Y. V.
Published: December 2023

The possibility of an effective method of dual-energy radiography unauthorized inclusions containing heavy elements in cargo containers has been investigated. A method for optimizing the energy performance of the bremsstrahlung radiation: low-energy beam (containing the maximum number of photons in the energy range, which is dominated by Compton effect) and high energy beam (with a maximum number of high-energy photons, electron-positron pairs) has been developed. The influence of the converter thickness and converter material on the spectral characteristics of the beams of photons has been investigated. The variants of treelayers efficient converters have been proposed. On the basis of the Monte Carlo and quasi-analytical method a numerical experiment radiography investments has been completed. It is shown that the use of optimally shaped beams can reliably distinguish embeddingfrom lead to masking the background of steel structures up to 25 cm
High-Temperature Silicides: Properties and Application
Authors: Lytovchenko S. V.
Published: December 2023

The overview presents a historic retrospective and current state of research of structure, properties and application of hightemperature silicide materials in science and engineering. These materials, particularly construction and functional materials based on or involving silicide refractory metals, are a most important alternative class of materials which adequately complete with special alloys, intermetallic metals, and ceramics that are traditionally used at high (above 15000C) temperatures in oxidizing and other aggressiveenvironments. The paper analyzes the data available on constitutional diagrams, particularly on molybdenum-silicon and tungsten-silicon systems. Also, it shows differences in descriptions of diagrams given by different authors and considers some crystallochemical and physical properties of some high-temperature silicides. The paper reviews areas of application of high-temperature silicide materials of various types (layered and multiple-phase composites, consolidated powders, film structure, three-dimensional materials), and presents details of the challenges encountered in the process of creation and application of high-temperature protectingsilicide coatings, as well as possible ways to improve their performance. It is noted that lack of unified approach to presentation and correlation of research results as well as to description of real performance of materials is a substantial problem in creating new high-temperature silicide materials.