bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS BUTIR SOAL PAS MATEMATIKA PEMINATAN: DAYA PEMBEDA, TINGKAT KESUKARAN, DAN KUALITAS PENGECOH
Authors: Mustaqim Mustaqim , Sulisti Hidayu
Published: July 2024

Analisis butir soal merupakan suatu proses yang harus ditempuh dan dilaksanakan oleh seorang pendidik untuk mengetahui sejauh mana kualitas butir soal yang diberikan. Tujuan penelitian ini adalah untuk menganalisis butir soal Penilaian Akhir Semester (PAS) dari segi daya pembeda, tingkat kesukaran, dan kualitas pengecoh. Penelitian ini merupakan penelitian deskriptif kuantitatif yang digunakan untuk mengetahui kualitas butir soal tes. Subjek penelitian adalah siswa kelas XII IPA 1 di SMA Negeri 10 Pontianak. Teknik pengumpulan data yang digunakan adalah dokumentasi hasil pengerjaan soal siswa pada Penilaian Akhir Semester (PAS) Genap mata pelajaran Matematika Peminatan kelas XII IPA Tahun Pelajaran 2023/2024. Daya pembeda soal PAS genap mata pelajaran matematika peminatan kelas XII IPA 1 SMA Negeri 10 Pontianak paling banyak berada pada kategori cukup. Hal ini artinya kualitas soal tersebut mampu membedakan dengan cukup baik peserta didik yang sudah memahami dan yang belum. Untuk tingkat kesukaran, paling banyak berada pada kategori mudah. Hal ini berarti soal kurang dapat merangsang siswa untuk mempertinggi usaha dalam memecahkan suatu permasalahan yang diberikan. Sedangkan untuk kualitas pengecoh, berada pada kategori sangat baik sebesar 22%, kategori baik sebesar 11,5%, kurang baik 13%, buruk 29%, dan kualitas pengecoh pada kategori sangat buruk sebesar 24,5%.
STUDI KOMPARASI JUAL BELI DENGAN HAK MEMBELI KEMBALI MENURUT KITAB UNDANG-UNDANG HUKUM PERDATA DAN KOMPILASI HUKUM EKONOMI SYARIAH
Authors: Sumardi Sumardi , Rahmat Rahmat , Bakar Abu
Published: July 2024

Penelitian ini berupaya untuk mengetahui ketentuan jual beli dengan hak membeli kembali menurut KUHPerdata dan  KHES serta mengetahui persamaan dan perbedaan ketentuan jual beli dengan hak membeli kembali menurut KUHPerdata dan KHES.  Adapun teknik analisis data yang digunakan  peneliti ialah penafsiran sistematis dengan dua langkah yakni analisis isi dan menghubungkan antar pasal-pasal yang bersangkutan dengan penelitian. Hasil penelitian menunjukkan bahwa jual beli dengan hak membeli kembali menurut KUHPerdata: Pihak penjual diberikan hak untuk dapat membeli kembali atas barang yang telah dijualnya berdasarkan adanya perjanjian. Di dalam KHES juga dapat terjadi berdasarkan adanya perjanjian. Adapun Persamaan ketentuan diantaranya diberikannya hak kepada pembeli untuk dapat membeli kembali terhadap barang yang telah dijualnya, persamaan dalam hak dan kewajiban penjual maupun pembeli, yaitu penjual sama-sama memiliki hak dapat menuntut pembeli mengembalikan objek penjualan, dan sama-sama berkewajiban mengembalikan harga penjualan semula. Hak dan kewajiban penjual sama dapat menuntut pengembalian harga pembelian, dan pembeli sama‑sama berkewa-jiban mengembalikan objek kepada penjual. Sedangkan perbedaan ketentuan dalam KUHPerdata dan KHES diantaranya: KUHPerdata terdapat penggantian kerugian biaya-biaya yang dibutuhkan pembeli untuk menjaga dan merawat objek, di dalam KHES hanya harga penjualan semula. Perbedaan objek dalam KUHPerdata berupa benda bergerak dan tidak bergerak, di dalam KHES hanya benda tidak bergerak. Jangka waktu di KUHPerdata menetapkan maksimal lima tahun, KHES tergantung kesepakatan, KUHPerdata tidak memperbolehkan, sedangkan di dalam KHES memperbolehkan jual beli ini.
POLA PENYELESAIAN SENGKETA EKONOMI SYARIAH DI KOPERASI SIMPAN PINJAM SYARIAH (KSPS) TINJAUAN KOMPILASI HUKUM EKONOMI SYARIAH
Authors: Rahmi Aulia
Published: July 2024

Penelitian ini fokus kepada pola penyelesaian sengketa ekonomi syariah yang terjadi terhadap anggota dan pihak Koperasi Simpan Pinjam Syariah di Rasau Jaya, Kabupaten Kubu Raya, Kalimantan Barat. Peneliti mengkaji pola penyelesaian sengketa ekonomi syariah ini berdasarkan konsep shulh pada Kompilasi Hukum Ekonomi Syariah (KHES). Penelitian ini bertujuan untuk mengetahui faktor-faktor penyebab terjadi sengketa ekonomi syariah, dan mengetahui bagaimana pola penyelesaian sengketa ekonomi syariah serta menganalisis konsep shulh mengenai pola penyelesaian sengketa ekonomi syariah pada lokus penelitian. Penelitian ini termasuk dalam penelitian kualitatif dengan jenis penelitian hukum empiris. Teknik analisis data yang digunakan dengan pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Hasil dari penelitian ini menunjukkan tiga kesimpulan: 1) Faktor yang menyebabkan sengketa eknomi Syariah adalah tidak maksimalnya penerapan princip pemberian kredit pada proses investigasi calon penerima pinjaman, kurang akuratnya data anggota, ketidakjujuran informasi, masalah ekonomi anggota, dan anggota mengalami musibah. 2) Pola penyelesaian sengketa non­-litigasi dengan mekanisme berupa peringatan, penarikan dana, turun lapangan, analisis lanjutan,  proses revitalisasi, dan penutupan akun anggota baik simpanan pokok, wajib, sukarela, dan Sisa Hasil Usaha (SHU) anggota, serta penghapusan dari dana Zakat Infak Sadekah (ZIS) atau baitul maal. 3) Relevansi konsep shulh dalam KHES terhadap pola penyelesaian sengketa ekonomi syariah ialah secara sistematis dan teoritis penyelesaian sengketa sudah sesuai dengan KHES. Adapun penekanannya adalah pada shulh murabahah. Cara ini direkomendasikan dalam penyelesaian sengketa karena sejalan dengan agama Islam yang membawa pesan kedamaian.
KESAHIHAN JUAL BELI KULAT DI DESA SUNGAI PINANG MENURUT PENGURUS MAJELIS ULAMA INDONESIA KABUPATEN MELAWI
Authors: Paramita Tanti , Sulaiman Rusdi , Rahmiani Nur
Published: July 2024

Penelitian ini bertujuan mencari jawaban atas status kesahihan jual beli ‘kulat’ (getah karet) di Desa Sungai Pinang dengan penambahan partikel atau kadar air di dalamnya menurut pengurus Majelis Ulama Indonesia (MUI) Kabupaten Melawi. Jenis penelitian ini adalah hukum empiris dengan pendekatan kualitatif serta dengan sifat deskriptif analisis. Sedangkan teknik pengumpulan data menggunakan data primer yaitu observasi, wawancara, maupun bentuk dokumentasi. Untuk uji keabsahan data, peneliti hanya menggunakan triangulasi. Berdasarkan hasil penelitian dapat disimpulkan bahwa: 1) Praktik dengan cara menambahan partikel atau kadar air ke dalam ‘kulat’ (getah karet) oleh masyarakat di Desa Sungai Pinang masih dilakukan sampai saat ini; 2) Status kesahihan jual beli ‘kulat’ (getah karet) dengan cara praktik penambahan partikel seperti serbuk kayu dan penambahan kadar air ke dalam ‘kulat’ ada dua pendapat menurut MUI Kabupaten Melawi, yaitu halal dan haram. Namun, jika penambahan partikel seperti batu kerikil, pasir, dan lumpur ke dalam ‘kulat’ hukumnya jelas haram; 3) Ada pendapat hukum lain selain Al-Qur’an, Hadis, dan Al-‘urf yang digunakan oleh pengurus MUI untuk membandingkan dan memberikan pendapat hukum yang tidak biasa digunakan oleh ulama lain yaitu dalil sejarah hukum. Implikasi penelitian ini adalah adanya perubahan perilaku tentang aktivitas jual beli yang bertentangan dalam Islam. Peran MUI Kabupaten Melawi sangat diperlukan dalam rangka memberikan pencerahan terhadap praktik jual beli ‘kulat’ yang dibernarkan dalam Islam.
Kata Kunci: Hukum Islam, Kulat (Getah Karet), Majelis Ulama Indonesia (MUI)
ANALISIS KLAUSUL PERJANJIAN TABUNGAN HAJI ANTARA NASABAH DAN BANK KALBAR CABANG SYARIAH PONTIANAK PERSPEKTIF FATWA MUI
Authors: Hidayatullah Syarif , Sulaiman Rusdi , Rahmiani Nur
Published: July 2024

Penelitian ini bertujuan untuk mengetahui isi klausul perjanjian tabungan haji antara nasabah dan Bank Kalbar Cabang Syariah Pontianak. Penelitian ini mengunakan metode penelitian hukum dan jenis penelitian normatif yang menggunakan metode pengumpulan data dengan studi pustaka (library research). Sumber data penelitian menggunakan data primer dan data sekunder. Teknik pengumpulan data adalah studi pustaka (bibliography study), studi dokumen (document study) dan dokumentasi. Teknik analisis data menggunakan teknik interpretasi dalam kontrak/perjanjian dan teknik sistematisasi. Menurut hasil penelitian yang dilakukan, peneliti dapat menyimpulkan bahwa: 1) Pada isi klausul perjanjian tabungan haji antara nasabah dan Bank Kalbar Cabang Syariah Pontianak yakni berisikan butir isi klausul perjanjian tabungan haji tentang hak dan kewajiban antara nasabah dan bank. 2) Dasar penyusunan isi klausul perjanjian tabungan haji pada Bank Kalbar Cabang Syariah Pontianak yakni merujuk pada fatwa DSN-MUI, POJK No.13/POJK.03/2021 tentang penyelenggaraan produk bank umum, dan UU No. 21 tahun 2008 tentang perbankan syariah 3) Adapun analisis isi klausul perjanjian tabungan haji antara nasabah dan Bank Kalbar Cabang Syariah Pontianak secara keseluruhan isi klausul tersebut telah konsisten dan telah sesuai dengan ketentuan fatwa DSN-MUI.
PANDANGAN MAJELIS ULAMA INDONESIA (MUI) KOTA SINGKAWANG TENTANG BINARY OPTION PADA PLATFORM BINOMO
Authors: Fernandi Donny , Sukardi Sukardi , Ulya Nanda Himmatul
Published: July 2024

Tujuan penelitian ini untuk mengetahui sistem Binary Option pada platfrom Binomo serta meminta Pandangan MUI Kota Singkawang tentang transaksi Binary Option pada Platfrom Binomo. Penelitian ini menggunakan metode penelitian kualitatif dan pendekatan normatif empiris. Sumber data menggunakan data primer dan data sekunder berupa buku-buku dan tulisan ilmiah hukum dan dapat membantu dalam menganalisa terkait objek penelitian. Teknik pengumpulan data berupa observasi, wawancara dan dokumentasi. Hasil penelitian menyimpulkan bahwa: 1) Sistem trading binary option platform binomo ini trader hanya menganalisa grafik pada platform Binomo. Setelah itu para trader bisa memperdagangkan berbagai aset seperti Crypto, uang asing, dan lain-lain. Dalam sistem Binary Option pada binomo ini para trader hanya melakukan transaksi beli dengan opsi naik dan jual dengan opsi turun dengan waktu penutup yang sudah dipilih oleh trader itu sendiri dan waktu itu  di antaranya, 30 detik hingga 1 jam, dan jumlah nominal perdagangan itu dari Rp14.000,00 hingga Rp14.000.000,00, dengan sistem keuntungan ditentukan oleh aplikasi yang mana salah satu opsi trader betul maka akan meraih keuntungan 80% dari hasil yang diperdagangkan dan sebaliknya opsi salah maka akan mendapatkan kerugian 100%. 2) Pandangan Majelis Ulama Indonesia (MUI) Kota Singkawang sepakat bahwa sistem Binary Option pada Binomo ini diharamkan atau dilarang untuk dilakukan karena mengandung spekulasi, untung-untungan, dan mengandung unsur penipuan dalamnya yang mana bisa di bilang maysir dan gharar seperti loutre sehingga dikatakan sebagai permaianan judi yang berdasarkan dalam ayat Al-Maidah ayat 90-91.
ANALISIS PERJANJIAN MENGENAI BIAYA TAMBAHAN PADA SHOPEE PINJAM MENURUT KETENTUAN FATWA DSN-MUI
Authors: Khairunnisa Della , Syahbudi Syahbudi , Ulya Nanda Himmatul
Published: July 2024

Penelitian ini dilatarbelakangi oleh adanya berbagai tambahan biaya yang ditetapkan oleh Shopee pinjam, namun mengenai makna biaya tambahan ini beberapa ulama tidak ada yang sepakat mengenai makna biaya tambahan ini secara pasti. Oleh karena itu, peneliti ingin meneliti mengenai makna biaya tambahan dalam Shopee Pinjam ini dilihat dari pandangan Fatwa Dewan Syariah Nasional-Majelis Ulama Indonesia apakah bertentangan atau tidak. Penelitian ini menggunakan metode penelitian normatif cum empiris. Hasil penelitian ini menunjukkan bahwa: 1) Para pengguna Shopee pinjam sudah mengetahui sejak awal berapa besaran biaya tambahan yang dikenakan. Biaya tambahan dalam Shopee pinjam yakni biaya cicilan sebesar 5%, biaya pencairan sebesar 1%, biaya proteksi Spinjam sebesar 0,3%, serta denda keterlambatan sebesar 5%. Bagi mereka biaya tambahan ini bukanlah suatu hal yang memberatkan. Biaya tambahan yang dikenakan dalam Shopee pinjam dapat meringankan pihak yang meminjamkan dan dapat memberikan kehati-hatian kepada peminjam agar disiplin dan tidak lalai dalam membayar pinjaman. 2) Biaya tambahan dalam Shopee pinjam tidaklah termasuk biaya tambahan yang dilarang dalam Fatwa DSN-MUI dikarenakan biaya tambahan ini merupakan bagian dari peningkatan dan pemeliharaan sistem dan sarana perusahaan. Selain itu, biaya tambahan dalam Shopee pinjam ini telah sesuai dengan ketentuan umum Fatwa DSN-MUI No. 117/DSN-MUI/2018 pada point 5 dalam ketentuan umum serta Fatwa DSN-MUI No.19/DSN-MUI/IV/2001 pada point 3 dalam ketentuan umum.
Kinetic Model for the Decomposition Rate of the Binder in a Foundry Sand Application
Authors: Matsushita Taishi , Sundaram Dinesh , Belov Ilja , Dioszegi Attila
Published: July 2024

Accurate kinetic parameters are vital for quantifying the effect of binder decomposition on the complex phenomena occurring during the casting process. Commercial casting simulation tools often use simplified kinetic parameters that do not comprise the complex multiple reactions and their effect on gas generation in the sand core. The present work uses experimental thermal analysis techniques such as Thermogravimetry (TG) and Differential thermal analysis (DTA) to determine the kinetic parameters via approximating the entire reaction during the decomposition by multiple first-order apparent reactions. The TG and DTA results reveal a multi-stage and exothermic decomposition process in the binder degradation. The pressure build-up in cores/molds when using the obtained multi-reaction kinetic model is compared with the earlier approach of using an average model. The results indicate that pressure in the mold/core with the multi-reaction approach is estimated to be significantly higher. These results underscore the importance of precise kinetic parameters for simulating binder decomposition in casting processes.
Analysis of the Physico-Chemical Characteristics and Content of Selected Bioactive Components in Lamb Meat, Depending on the Type of Muscle and Vacuum Aging Time
Authors: Radzik-Rant Aurelia , Rant Witold , Świątek Marcin , Sosnowiec-Wierzchoń Gabriela , Niżnikowski Roman
Published: July 2024

The impact of processes related to meat aging on physico-chemical characteristics and biologically active compound content remain in the minority. Thus, the aim of the study was to analyze the physico-chemical traits (pH, meat color, expressed juice, moisture content, protein, fat, total collagen, and fatty acids) and carnosine, taurine, and L-carnitine content for fresh meat and vacuum-packaged meat aged for 7 and 14 days at temperature of 2°C, from the longissimus lumborum (LL) and gluteus medius (GM) muscles. This was carried out using 66 Polish Merino heavy lambs. In both muscles, the L* parameter decreased in aged meat, however, the differences with respect to fresh meat were not statistically confirmed. In the gluteus medius muscle, a higher (P<0.05) redness value (a*) and lower yellowness (b*) were recorded in meat after aging. A lower (P<0.05) expressed juice value was found in both LL and GM after 7 days of aging. An increase (P<0.05) in protein and fat content in both muscles, and collagen content in LL was observed in aging meat. There was no difference in fatty acid groups or C18:2 c9, t11 content between the GM and LL muscles, or fresh and aging meat. A higher TBARS (thiobarbituric acid reactive substances) content (P<0.05) was recorded in meat after aging for both GM and LL. The meat aging process increased (P<0.05) the carnitine and taurine content, while the carnosine content decreased. Apart from carnosine, the aging process did not significantly reduce the content of bioactive ingredients, which are important in the human diet. This process also did not negatively affect the physico-chemical characteristics determining consumers’ evaluation of the meat.
Extracellular Vesicles Obtained from Equine Mesenchymal Stem Cells Isolated from Adipose Tissue Improve Selected Parameters of Stallion Semen After Cryopreservation
Authors: Sawicki Sebastian , Gurgul Artur , Gabryś Julia , Kij-Mitka Barbara , Bochenek Michał , Karnas Elżbieta , Podstawski Zenon , Długosz Bogusława , Bugno-Poniewierska Monika
Published: July 2024

Despite extensive research on the cryopreservation of stallion semen, the process still requires improvement. Several diluent additives have been developed to overcome cryopreservation issues, however, semen from valuable individuals often shows poor quality after thawing. Mesenchymal stem cells (MSCs) are regarded as factors that may play an important role in the regenerative process of sperm by secreting extracellular vesicles (EVs) that are actively involved in intercellular communication, tissue repair and cell membrane maintenance. The study aimed to determine the effect of the addition of EV-MSCs obtained from equine adipose tissue on various parameters of cryopreserved stallion semen. All cells met the minimum criteria established by the ISCT, being a characteristic surface profile of the presence of CD90 and lack of MHC II, differentiation into three mesodermal lineages, and adherence. EVs were collected from the expanded cells by ultracentrifugation, and their characteristics were confirmed using nanoparticle tracking analysis (NTA) and flow cytometry to detect CD63 and CD81 antigens. Semen was collected from 11 stallions of the Hucul breed, and each parameter of sperm quality with (25 µg/ml, 50 µg/ml) and without EV addition (motility, morphology and viability) was analyzed. The results showed statistically significant differences in sperm motility, progressive movement and viability following EV treatment. While the amplitude of lateral head displacement (ALH) and morphology parameters did not change, the addition of EVs does not affect these sperm features. The results provide an initial insight into the role of EVs in the maintenance and regeneration of horse sperm after cryopreservation-induced shock.
Transport exchanges as transport and forwarding management systems
Authors: Huk Katarzyna
Published: July 2024

Changes taking place in the economy affect the emergence of innovations. It is primarily technological progress that influences the creation of new solutions. Logistics is one area where innovations and improvements are needed. New solutions are primarily process improvements, the implementation of autonomous vehicles, solutions that help to supervise transport processes, and the effectiveness and costs of their implementation. The greatest benefits of technological progress are the provision of knowledge and information about the journey, the efficiency of a given car and driver, and changes in the market (e.g., information about the demand and supply for given services). This article aims to identify the possibilities of using freight exchanges in transport and forwarding management. It is based on a literature analysis and statistical data from systems dedicated to transport and forwarding, as well as surveys conducted by the author. The article uses analyses of demand, supply and prices based on data from transport exchanges. Possibilities of obtaining information for better management of a transport company were presented. Possibilities of obtaining information for better management of a transport company were presented. The article presents the relationship between the use of the transport exchange and the size of the company, fleet and the number of countries served as part of transport services. The possibilities of using transport exchanges and the possibility of replacing software dedicated to transport and forwarding by the discussed programs were indicated.
Analysis of health warning signs on alcoholic beverage packaging using the eye-tracking method
Authors: Cholewa-Wójcik Agnieszka , Kawecka Agnieszka , Jarossová Małgorzata , Wiażewicz Joanna
Published: July 2024

Producers must mark packaging with various warning signs, including the harm of alcohol consumption. The most popular warnings inform about the required consumer age (e.g., “alcohol only for adults”), consequences of drunk driving (e.g., “don’t drink and drive”), and advisable abstaining from drinking during pregnancy.

The study’s main objective was to analyse the perception of warning signs on alcoholic beverage packaging using the eye-tracking method, which allows the observation and measurement of the focus of study participants. The research positively verified the ability to use the eye-tracking method to assess the perception of warning signs. The obtained research results were used to investigate the perception of warning signs placed on glass beer bottles. The study showed that the presence of pictograms (i.e., graphic symbols) does not guarantee the focus of potential buyers’ attention. The obtained results clearly indicated that the efficiency of perception results from many elements, including the sign’s placement, size and colours, a connection between graphic and textual information, and the colour of the packaging material and label. The study’s results can be useful for non-profit organisations and other entities responsible for the social marketing of alcoholic beverages. Moreover, the study could be seen as a starting point for researchers, beverage packaging industry representatives, and policymakers to test, introduce and promote packaging innovation solutions. The research filled the gap by providing a better understanding of the effectiveness of warning signs on alcoholic beverage packaging and furnished clues as to how alcohol stakeholders and public institutions should react to enhance alcohol health literacy in society.
Investigation of Cenosphere-Based Lightweight Ceramic Matrixless Syntactic Foam Through Spark Plasma Sintering
Authors: Eiduks T.V. , Drunka R. , Abramovskis V. , Zalite I. , Gavrilovs P. , Baronins J. , Lapkovskis V.
Published: July 2024

The current study introduces porous ceramic materials fabricated from cenospheres through spark plasma sintering. The investigation delves into the impact of sintering temperature, mould diameter (20 and 30 mm), and cenosphere size on the resulting material properties. Notably, sample shrinkage initiates at 900 °C and demonstrates an upward trend with temperature escalation, while a larger mould diameter contributes to sample shrinkage. Elevated sintering temperature leads to increased apparent density across various sample series, such as CS 63–150 µm in a 20 mm mould (0.97 to 2.3 g/cm³ at 1050–1300 °C), CS 150–250 µm in a 20 mm mould (0.93 to 1.96 g/cm³ at 1050–1200 °C), and others in different mould sizes. Total porosity decreases from 61.5 % to 3.9 % with a rising sintering temperature (1050 to 1250 °C), while open porosity starts decreasing at lower temperatures. Closed porosity peaks in samples sintered at 1150 °C. Furthermore, an increase in sintering temperature from 1050 to 1300 °C boosts the compressive strength of CS 63–150 samples in a 20 mm mould from 11 MPa to 312 MPa. These findings align with the Rice model, illustrating an exponential relationship between compressive strength, material porosity, and fully dense material compressive strength.
PRIMER REGISTRO DEL ESPECIALISTA DE BAMBÚ HORMIGUERITO DE IHERING Myrmotherula iheringi oreni (AVES: THAMNOPHILIDAE) EN EL DEPARTAMENTO DE JUNÍN, PERÚ
Authors: VÁSQUEZ-ÁREVALO Francisco Alción , PANTA CORZO Margot
Published: July 2024

Myrmotherula iheringi oreni es una especie conocida por su asociación a bosque de bambú al sur de Perú. Su rango de distribución se encuentra restricto al departamento de Madre de Dios, Cusco, Puno y Ucayali; sin embargo, nuestro registro de M. iheringi oreni cerca del poblado de Poyeni es el primer registro para el departamento de Junín.
A manual for project governance and asset management
Authors: Reaiche Carmen , Papavasiliou Samantha
Published: July 2024

Students, practitioners, and businesses will all benefit from this free eBook, which focuses on project governance and asset management. We are breaking new ground by establishing the value proposition associated with the integration of both AM and Governance. Both areas, in our opinion, are inextricably connected in project management. In this eBook, which we have written as a manual, the ideas of assets and governance are brought together, and an agile governance framework is introduced. We hope to examine how these ideas may be used in project management in order to provide you with beneficial methodologies and approaches.
Coherent Betatron Oscillations in a Storage Ring at Injection
Authors: Sherstyuk S. P. , Perevedentsev E. A. , Timoshenko M. V.
Published: July 2024

A single-turn (and single-bunch) injection often operates with an injection portion of high intensity, comparable with that of the circulating bunch. Collective effects due to transverse impedance provide interaction between groups of particles. This interaction may set serious limitations on the injection efficiency.

We analyze the conditions of coherency of the betatron oscillations following the injection, while the beam is subject to decoherence resulting from the machine lattice nonlinearities. The theoretical results are supported by numerical tracking. The conclusions are compared with experimental data on dipole oscillations histories following the VEPP-2000 injection.
Operation of Rf Systems During Joint Booster and Nuclotron Sessions
Authors: Brovko O. I. , Volodin A. A. , Lebedev V. A. , Syresin E. M. , Sidorin A. O. , Fatkin G. A.
Published: July 2024

The article discusses the results of commissioning of RF systems of the NICA injection complex and plans for their further development. The preparation of the injection complex for injection into the collider requires an increase in the beam intensity in the Nuclotron outlet by about two orders of magnitude. Obtaining the required intensity will be achieved by accumulating the beam on injection energy using electronic cooling and reducing acceleration losses. This will require optimization of all systems of the complex, including a significant reduction in losses associated with RF systems. The experience allows us to choose the optimal strategy for the further development of HF systems. The main directions are: (1) accumulation of the beam in the longitudinal phase space during injection into the Booster, (2) reduction of the growth of the longitudinal emittance during acceleration, (3) bypass of the beam clot-in-clot from the Booster to the Nuclotron without growth of the longitudinal emittance, and (4) minimizing losses during acceleration and beam bypasses. The latter requires matching the acceleration rate with the capabilities of existing HF systems.
Newest ELV Type Accelerators with up to 4 MeV Energy
Authors: Vorobev D. S. , Kuksanov N. K. , Domarov E. V. , Golubenko Yu. I. , Korchagin A. I. , Salimov R. A. , Fadeev S. N. , Chakin I. K. , Semenov A. V. , Lavrukhin A. V. , Potapova Yu. E.
Published: July 2024

The article represents new models of accelerators of the ELV series: ELV-15 with a maximum energy of up to 3 MeV, ELV-16 with a maximum energy of up to 4 MeV, an ELV-18 accelerator with an energy of up to 2 MeV, and a modification of the ELV-4 accelerator – ELV-4B. Details of the design, calculation and testing process are given. Features of operation and accelerators conditioning are considered. Attention is paid to the current state of development, research, application of ELV accelerators series.
Experimental Study of the Wave Train Development in a Longitudinal Trace in the Fat Plate Boundary Layer at Mach 2.5
Authors: Piterimova M. V. , Kosinov A. D. , Semionov N. V. , Yatskikh A. A. , Shmakova A. V. , Yermolaev Yu. G. , Smorodsky B. V.
Published: July 2024

The paper discusses experimental results on the wave train development in a longitudinal trace in the flat plate boundary layer at Mach 2.5. An analysis of the spatiotemporal distributions and frequency-wave spectra of pulsations, as well as their wave characteristics in the linear and weakly nonlinear phase of the wave train development in a homogeneous and inhomogeneous boundary layer at a fixed power of the controlled disturbances source has been carried out. During the analysis of the results, no subharmonic resonance was observed. Expansion into the wave spectrum of a stationary inhomogeneity and experimental data on wave characteristics and disturbance spectra made it possible to propose options for wave interaction for oblique breakdown.
Homozygous germline c.3380C>G missense mutation in PNPLA6 gene in a case of Gordon Holmes syndrome associated with hypogonadotropic hypogonadism, cerebellar ataxia, and juvenile type tremor
Authors: Canbek Sezin , Şenol Mehmet Guney
Published: July 2024

Gordon Holmes syndrome (GDHS) is a genetic disorder that is inherited in an autosomal recessive manner. It is characterized by the presence of cerebellar ataxia, which refers to a lack of coordination and control of voluntary movements, and hypogonadotropic hypogonadism, which is a condition where the production of hormones that regulate sexual development and function is reduced. In this report, we describe the case of a Turkish patient who has been diagnosed with GDHS. The cause of this syndrome in the patient is a homozygous new mutation in the PNPLA6 gene. The proband case was detected through a collaboration between neurology and medical genetics based on her clinical symptoms. The specific point mutation was identified using the next-generation sequencing (NGS) technology. The patient, who was 28 years old, presented with primary amenorrhea, tremors in her head and both hands, cognitive impairment, cerebellar ataxia, hypogonadotropic hypogonadism, and diabetes. A point mutation, specifically a germline missense mutation c.3380C>G, was identified in exon 31 of the PNPLA6 (NM006702.5) gene. This gene is responsible for encoding the neuropathy target esterase protein. The mutation was found by NGS screening. Her parents were consanguineous and both heterozygous for the same missense mutation. This instance highlights the significant impact of first-degree consanguineous marriage on our nation, particularly in relation to autosomal recessive hereditary illnesses. It underscores the crucial function of genetic counseling in averting such scenarios. Subsequent findings of PNPLA6 variants will provide more elucidation on the correlation between patient genotype and phenotype. The finding of novel variations in every gene has been made feasible by the recent progress of genomic technology.
Connecting Customers and Merchants Offline: Experimental Evidence from the Commercialization of Last-mile Stations at Alibaba
Authors: Han Brian Rongqing , Sun Tianshu , Chu Leon Yang , Wu Lixia
Published: July 2024

Many e-commerce platforms have established extensive networks of stations as their last-mile logistics infrastructure. This study investigates how this last-mile infrastructure may serve as an offline platform to connect customers and merchants in the physical world by leveraging walk-in traffic (organic interaction) and prompting interested customers through online intervention (induced interaction). Using free sample distribution as an example, we designed two large-scale studies in collaboration with Alibaba—an observational study across 1,032 stations and a randomized field experiment among 189,019 customers—to examine the causal effects of organic and induced interactions on customers’ subsequent online purchases from the focal brands, respectively. We found that induced interaction drives significantly more online sales than organic interaction. Under induced interaction, the online intervention effectively increases the number of free samples distributed. Nevertheless, the more significant increase in online sales for induced claimers is not simply due to more free samples distributed but because the induced customers are more interested and more likely to purchase. We identified this phenomenon as a screening mechanism that facilitates an advantageous selection of customers claiming the samples. Customers willing to pay the additional travel cost to claim samples are more likely to purchase the focal brands afterward. Finally, we developed a customized targeting framework using a generalized random forest model to enhance the effectiveness of induced interaction at the last-mile stations. Our study raises a key insight that the “foot-in-the-door” traffic in an omnichannel environment can be fundamentally different depending on whether the offline customers are driven from the online channel.
Equal Opportunity for All? The Long Tail of Crowdfunding: Evidence from Kickstarter
Authors: Geva Hilah , Barzilay Ohad , Goldstein Anat , Oestreicher-Singer Gal
Published: July 2024

Crowdfunding platforms are believed to create a more equal-opportunity environment for fundraising by removing entrance barriers found in traditional entrepreneurial markets. Our work investigates whether in creating more equal opportunities for entrepreneurs to enter the market, crowdfunding platforms also create a more equal distribution of funds across ventures. To this end, we utilized a natural experiment in the form of a policy change on Kickstarter.com that resulted in opening the market to more players. Using platform-level analysis, we show that opening the platform shifted demand toward the head of the distribution: More funds and backers became concentrated in a smaller number of head-offers (the superstar effect). Using individual backer-level analysis, we show that these changes in demand distribution are likely to have resulted from changes in investors’ investment behavior, beyond changes in the composition of the demand side (that is, changes in the types of investors entering the market). Together, our results suggest that efforts to level the playing field in crowdfunding platforms can ultimately result in a less equitable distribution of funds across market participants, and drive investors to focus their investments on a smaller set of campaigns.
Behaviorally Measuring Usability by Analyzing Users’ Mouse Movement Efficiency
Authors: Wilson David W. , Valacich Joseph S. , Jenkins Jeffrey L.
Published: July 2024

Usability—the extent to which a system can be operated to achieve specified goals with effectiveness, efficiency, and satisfaction—is a hallmark of many successful systems. Identifying usability concerns with existing measures, however, can be problematic. We use biased competition theory (BCT) to explain how interfaces with low usability create attentional interference, which can be measured through mouse movement efficiency (MME). We test our hypotheses in four studies. Study 1 manipulates attentional interference and examines its influence on MME using eye tracking to validate BCT as an appropriate theoretical lens for our research. Study 2 manipulates usability and shows similar markers of attentional interference in MME on a website with two different populations. Study 3 is a field test that compares the reliability of MME in ranking the usability of different components of a commercial web application to rankings produced by a common perceptual measure of usability: perceived ease of use. Collaborating with a Fortune 100 software vendor, Study 4 further demonstrates the efficacy of MME in ranking the usability of various system components compared to a standard industry measure of usability across three different products. The results consistently show that MME can help identify usability differences among parts of systems. The results have implications for facilitating more efficient and temporally precise usability research and mass-deployable usability testing.
Automated Analysis of Changes in Privacy Policies: A Structured Self-Attentive Sentence Embedding Approach
Authors: Lin Fangyu , Samtani Sagar , Zhu Hongyi , Brandimarte Laura , Chen Hsinchun
Published: July 2024

The increasing societal concern for consumer information privacy has led to the enforcement of privacy regulations worldwide. In an effort to adhere to privacy regulations such as the General Data Protection Regulation (GDPR), many companies’ privacy policies have become increasingly lengthy and complex. In this study, we adopted the computational design science paradigm to design a novel privacy policy evolution analytics framework to help identify how companies change and present their privacy policies based on privacy regulations. The framework includes a self-attentive annotation system (SAAS) that automatically annotates paragraph-length segments in privacy policies to help stakeholders identify data practices of interest for further investigation. We rigorously evaluated SAAS against state-of-the-art machine learning (ML) and deep learning (DL)-based methods on a well-established privacy policy dataset, OPP-115. SAAS outperformed conventional ML and DL models in terms of F1-score by statistically significant margins. We demonstrate the proposed framework’s practical utility with an in-depth case study of GDPR’s impact on Amazon’s privacy policies. The case study results indicate that Amazon’s post-GDPR privacy policy potentially violates a fundamental principle of GDPR by causing consumers to exert more effort to find information about first-party data collection. Given the increasing importance of consumer information privacy, the proposed framework has important implications for regulators and companies. We discuss several design principles followed by the SAAS that can help guide future design science-based e-commerce, health, and privacy research.
The Returns of Early Adoption of Information Technologies: Order of Adoption or Level of Adoption Advantages?
Authors: Gómez Jaime , Palomas Sergio
Published: July 2024

We study whether the early adoption of information technologies provides competitive advantages and examine the source of such advantages. Existing research in this area has failed to differentiate between the advantages arising from the timing of adoption (e.g., asset preemption) and those that are related to higher levels of adoption (e.g., organizational learning). In this paper, we break down these advantages into two components: order of adoption (early vs. late adopters) and level of adoption (high vs. low internal diffusion levels). The empirical analysis examines the adoption and subsequent intrafirm diffusion of the automated teller machine in a sample of Spanish savings banks using a long data panel extending from 1988 to 2004. The results show that the advantages associated with the order of adoption outweigh those associated with the level of adoption and have the potential to be long lasting. Our findings are consistent across various estimation methods, and we assess different performance dimensions (ROA, income, and efficiency). Our modeling and findings have implications for managers and can be applied to the study of the early adoption of modern technologies.
PROJECT RISK MANAGEMENT USING AN EXAMPLE OF LLC KSK CONSULTING COMPANY
Authors: Гребнева А.С.
Published: July 2024

Актуальность исследования: наличие упущений в процессе осуществления проектной деятельности КСК групп, в части определенных категорий рисков, которые не были предусмотрены исполнителем на этапе входа в проект, обсуждение возможности их наступления и фиксирование данного факта в соответствующем документе, также отсутствует. Цель исследования: сформировать рекомендации в области управления рисками, используя опыт компании ООО «КСК», что улучшит качество оказываемых услуг и повысит эффективность управления взаимоотношениями с клиентами. Методами исследования являются анализ литературы, изучение и обобщение сведений, а также классифицирование. Результаты исследования: в статье представлены инструменты и методы, направленные на повышение эффективности управления рисками в проектах, а также отражены положительные тенденции в случае их внедрения в бизнес-процессы КСК групп. Практическая значимость: предложенные рекомендации направлены на повышение конкурентоспособности компании КСК групп в современных условиях меняющихся реалий и ориентированы на расширение, ныне занятой, доли рынка консалтинговых услуг

Relevance of the research: the presence of omissions in the process of project work at KSK group within certain risk categories which were not anticipated by the executor at the project start event, discussion of the occurrence possibility and fixing of this fact in the relevant document is absent.  The purpose of research: formulation of recommendations for risk management field using the experience of LLC KSK in order to increase the quality of the rendered services and increase the effectiveness of the client interaction management. Research methods: literature analysis, research and synthesis of information, as well as classification. Research results: the present article presents tools and methods aimed to improve the effectiveness of project risk management, as well as it reflects positive trends in the case of their implementation into the business processes of KSK group. Practical significance: the stated recommendations are aimed to increase the competitive advantage of KSK group company within the modern conditions of fast changing market realities and are focused on the new market share takeover
PECULIARITIES OF THE FORMATION OF A STEP-BY-STEP MODEL FOR THE DEVELOPMENT OF PROFESSIONAL AND CULTURAL COMPETENCIES OF STUDENTS OF HIGHER AGRARIAN EDUCATIONAL INSTITUTIONS
Authors: Щипанова Д.Г.
Published: July 2024

В статье исследуется актуальная проблема теоретико-методических основ формирования профессиональных компетенций будущих специалистов аграрного профиля, раскрыты вопросы о сущности профессиональных компетенций и теоретические основы их формирования у будущих специалистов аграрного профиля. В статье показано, что важнейшей профессиональной компетенцией будущих специалистов аграрного профиля является ценностное отношение специалистов-аграриев к будущей профессии, которое в структурном плане представляет собой целостное единство компонентов: когнитивного, эмоционального и поведенческого. В статье предложена модель поэтапного формирования ценностного отношения студентов высших аграрных учебных заведений к профессиональной деятельности, в единстве трех этапов: ориентационного, праксеологического и коммуникативно-творческого

The article examines the actual problem of the theoretical and methodological foundations for the formation of professional competencies of future specialists in the agricultural profile, reveals questions about the essence of professional competencies and the theoretical basis for their formation in future specialists in the agricultural profile. The article shows that the most important professional competence of future specialists in the agrarian profile is the value attitude of agrarian specialists to the future profession, which in structural terms is an integral unity of components: cognitive, emotional and behavioral. The article proposes a model for the gradual formation of the value ratio of students of higher agrarian educational institutions to professional activity, in the unity of three stages: orientational, praxeological and communicative-creative
The dynamics of the value orientations of the social altruism of student youth
Authors: Тазов Петр Юрьевич
Published: July 2024

Тридцатилетний период реформ (1988-2018) выступил катализатором многих изменений, происходящих в сознании населения России и студенческой молодежи, в частности. В условиях рынка, некоторые ценностные ориентации стали переосмысливаться студенческой молодежью. В 90-х на первые места в ценностном сознании молодежи стали подниматься ценностные ориентации материального благополучия, ценности «социального альтруизма» ушли на периферию. Период относительной стабилизации экономики позволил «сбалансировать» иерархию ценностных ориентаций студентов и позволил ценностным ориентациям социального альтруизма вновь занять значимое место в сознании студентов.

The thirty-year period of reforms (1988-2018) acted as a catalyst for many changes in the minds of the Russian population and students in particular. In the conditions of the market, some value orientations began to be rethought by students. In the 1990s, the value orientations of material well-being began to rise to the frst places in the value consciousness of young people, the values of "social altruism" went to the periphery. The period of relative stabilization of the economy allowed to "balance" the hierarchy of value orientations of students and allowed the value orientations of social altruism to again take a signifcant place in the minds of students.
Social ideal in the philosophy of N. A. Berdyaev
Authors: Маркова Т.В. , Шетулова Е.Д.
Published: July 2024

Анализ проблемы общественного идеала в философии Н.А.Бердяева актуален, так как позволяет критически оценить нынешние реалии, реанимировать национальное самосознание, выявить недостатки подходов к общественному идеалу сегодня, найти пути дальнейшей трансформации страны. Цель статьи заключена в реконструкции понимания Бердяевым социального идеала. Методология исследования компаративистский метод и метод историзма. Основные полученные результаты выражаются в утверждении, что общественный идеал, формулируемый Бердяевым, основывается на двух фундаментальных положениях. Вопервых, персоналистическом положении, что человек одновременно одинок и социален. Вовторых, религиознофилософском положении, согласно которому наиболее существенным понятием, выражающим собой социальный идеал, является понятие соборности . Особо констатируется корреляция понимания общественного идеала Бердяевым, несмотря на ее религиозную форму, с общей социальноисторической обстановкой, имевшей место в России в конце XIX начале ХХ века. Область применения полученных результатов в их возможном использовании в научноисследовательской и учебнопедагогической деятельности, прежде всего, при разработке курсов лекций и семинаров по социальной философии и истории философии, а также соответствующих учебных пособий.

The analysis of the problem of the social ideal in the philosophy of N. A. Berdyaev is relevant, since it allows us to critically assess the current realities, reanimate the national consciousness, identify the shortcomings of approaches to the social ideal today, and find ways to further transformation of the country. The purpose of the article is to reconstruct Berdyaevs understanding of the social ideal. The research methodology is a comparative method and a method of historicism. The main results obtained are expressed in the statement that the social ideal formulated by Berdyaev is based on two fundamental positions. First is the personalistic position that a person is both lonely and social. Secondly, there is the religious and philosophical position, according to which the most significant concept that expresses a social ideal is the concept of conciliarity. The correlation of Berdyaevs understanding of the social ideal, despite its religious form, with the general socio-historical situation that took place in Russia in the late XIX early XX century is particularly stated. The field of application of the results obtained is in their possible use in research and educational activities, primarily in the development of courses of lectures and seminars on social philosophy and the history of philosophy, as well as relevant textbooks.
Du croire : le mécanisme épistémique de la véridiction
Authors: Di Caterino Angelo
Published: July 2024

Le problème de la véridiction peut être abordé sous l’angle du « croire » en tant que jugement épistémique. Cette perspective amène à vérifier les conditions qui font croire vrai un Texte-Discours. L’étude sur le croire proposée touche d’abord le problème du « monde naturel » envisagé comme « système de croyances » (épistémès) qui déterminent l’adhésion à/la reconnaissance de certaines valeurs qui, à leur tour, sanctionnent comme « réel » le monde sensé dans lequel nous sommes immergés. Le « croire » concerne aussi la grammaire narrative à propos des croyances culturelles présupposées des sujets. Ces deux points pourraient constituer le fondement d’une sémiotique de la culture qui jetterait un pont entre les travaux de Greimas et ceux de Lotman.