bluuebunny/crossref_metadata_2025 huggingface dataset:
KEMAMPUAN MENULIS CERPEN PADA SISWA KELAS IX G SMP NEGERI 2 KOTA BENGKULU
Authors: Kusmiarti Reni , Kartika Cindy , Intan Oktapioni  , Agung Hardi Pranata  , Wulandari Wulandari
Published: April 2024

Menulis sangat penting bagi siswa karena memudahkan siswa untuk berfikir, keterampilan menulis juga merupakan salah satu keterampilan berbahasa yang menjadi tujuan setiap pembelajaran bahasa di sekolah. Penelitian ini bertujuan untuk mengetahui kemampuan menulis cerpen siswa kelas IX G SMP Negeri 2 kota bengkulu tahun ajaran 2022, adapun aspek yang dinilai yaitu unsur intrinsik yang ada dalam cerpen yaitu tema, tokoh dan penokohan, latar, gaya bahasa, alur, sudut pandang dan amanat. Metode yang digunakan dalam penelitian ini adalah penelitian deskriptif kualitatif. Populasi dan sampel dalam penelitian ini adalah siswa kelas IX G yang berjumlah 25 siswa. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah teknik tes atau penugasan dan teknik dokumentasi. Berdasarkan hasil dan pembahasan menunjukan siswa kelas IX G kemampuan menulis berdasarkan unsur intrinsik dan hasil penilaian yang didapatkan berada pada bobot 80-100. Di dalam cerpen yang telah ditulis terdapat unsur intrinsik cerpen yaitu tema, tokoh dan penokohan, latar, gaya bahasa, alur, sudut pandang dan amanat.  Dari data tersebut pemerolehan nilai paling tinggi dengan nilai perolehan 90, 87, 85, 80 yaitu 13 (52%) siswa dengan kategori sangat mampu. Siswa memperoleh nilai 79, 78, 76, 75 berjumlah 12 siswa (48%) dengan kategori mampu.
Kata Kunci: Kemampuan Menulis, Cerpen Siswa, SMP Negeri 2 Kota Bengkulu
KEMAMPUAN MENGANALISIS TEKS LAPORAN HASIL OBSERVASI KELAS VII D SMP NEGERI 11 KOTA BENGKULU
Authors: Paulina Yanti , Hasmi Suyuthie  , Balogi Abiyon , Dwita Mala  , Nining Susanti Alpionita
Published: April 2024

Penelitian ini bertujuan untuk mengetahui kemampuan peserta didik dalam menentukan struktur dan ciri kebahasaan teks laporan hasil observasi peserta didik kelas VII D SMP Negeri 11 Kota Bengkulu, Jenis Penelitian ini merupakan penelitian kualitatif yang menggunakan metode deskriptif yaitu mendeskripsikan data penelitian apa adanya. Penelitian ini difokuskan pada penggunaan struktur yaitu deskripsi umum, deskripsi bagian, manfaat, dan kesimpulan. Ciri kebahasaannya yaitu frasa nomina, verba relasional, verba aktif, konjungsi, repetisi, dan kata keilmuan yang ditemukan dalam teks laporan hasil observasi peserta didik kelas VII D SMP Negeri 11 Kota Bengkulu. Teknik pengumpulan data pada penelitian ini dilakukan dengan teknik tes atau penugasan. Sumber data penelitian ini adalah tulisan struktur dan ciri kebahasaan teks laporan hasil observasi. Instrumen penelitian ini adalah peneliti itu sendiri. Hasil penelitian ini menunjukkan bahwa peserta didik kelas VII D SMP Negeri 11 Kota Bengkulu memperoleh skor rata-rata 7,2 dengan kategori nilai cukup yang artinya peserta didik belum mampu menganalisis struktur dan ciri kebahasaan teks laporan hasil observasi.
Kata Kunci: Struktur, Ciri Kebahasaan, Teks Laporan Hasil Observasi
PELATIHAN PENGGUNAAN APLIKASI PERKANTORAN MICROSOFT OFFICE PADA ANAK USIA SEKOLAH
Authors: Raffles Richard , Nurhayati Nurhayati , Wijaya Ardi , Sonita Anisya
Published: April 2024

ABSTRAK
Peran teknologi dan informasi kini sudah sangat diperlukan, apalagi di era revolusi industri 4.0 saat ini. Siswa SDN 57 Koa Bengkulu diharapkan  memiliki keterampilan lebih dibandingkan siswa-siswi lainnya. Microsoft Office merupakan salah satu aplikasi perangkat lunak yang biasa digunakan untuk menunjang kegiatan belajar mengajar. Saat ini siswa di SDN 57 Kota Bengkulu telah mempunyai sarana dan prasarana untuk melayani kegiatan belajar mengajar, namun siswa belum dapat menggunakan fitur-fitur yang tersedia pada aplikasi Microsoft Office. Pelatihan ini bertujuan untuk meningkatkan keterampilan mahasiswa dalam menggunakan perangkat lunak Microsoft Office (Microsoft Word dan Microsoft Power Point) untuk mendukung kegiatan belajar mengajar. Kegiatan pengabdian ini bertujuan untuk mendukung siswa SDN 57 Kota Bengkulu dalam aplikasi Microsoft Word dan Microsoft PowerPoint. Dengan adanya kegiatan ini, kami berharap siswa akan lebih mudah mengolah teks dan membuat dokumen presentasi yang bermanfaat sehingga memudahkan proses pembelajaran.
 
Kata Kunci: Ms Office, Komputer, Pelatihan
Efficient reuse of Sargassum spp. biomass and organic fraction of municipal solid waste by anaerobic co-digestion in the Dominican Republic: Evaluation of biochemical methanogenic potential and reaction rates
Authors: Paletta Rosy , Filippelli Pierpaolo , Candamano Sebastiano , Galluccio Luana , Macilletti Angelo , A.Castro Yessica , Tursi Antonio , Amaro Eurípides , Frias J.
Published: April 2024

Anaerobic digestion (AD) is a potential solution to valorize invasive pelagic Sargassum spp. Sargassum spp. (SP) biomass is characterized by a low carbon/nitrogen (C/N) ratio, which, in addition to the presence of indigestible fiber, sulfide, salt, ash, and polyphenol content, are inhibitors to the AD process. Furthermore, its chemical composition depends on the season and region of harvesting. To increase biogas yields, biomass must be subjected to pre-treatment or an anaerobic co-digestion process with other waste biomass. In this paper results of co-digestion of Sargassum spp. and municipal solid waste (OFMSW) batches with different weight ratios are reported and compared with the mono-digestion of the two organic matrices. The objective is to provide an optimized SP to OFMSW ratio for the sustainable production of biogas in the Dominican Republic. Mono-digestion of Sargassum spp. showed the longest reaction time and the lowest biomethane yield as it lasted 30 days and provided a cumulative volume of biomethane equal to 79.68 NmLg−1VS. The addition of OFMSW led to the shortening of the reaction time to 10 days and to the increase of the yield and cumulative volume of biomethane. It can be attributed to the more favorable C/N ratio, to the presence of more readily digestible compounds and lower ash content of those batches. The reaction kinetics of all the investigated batches is properly fitted by the Modified Gompertz model. The system with a Sargassum spp.-OFMSW weight ratio of 33:67 allows to obtain a notable bio-methane volume of 327.27 ± 15.93 NmLg−1VS, ten times higher than from Sargassum spp. alone.
Evaluation of the Safety and Efficacy of Coronary Intervention through the Brachial Artery Compared to the Radial Artery in Elderly Patients with Different Extubation Times
Authors: Liu Li-Yun , Ren Fang , Xing Yan-Lin , Liu Qing-Rong , Wu Qin-Yan , Ren Ge , Liao Qin-Wen , Wang Lu , Gan Feng
Published: April 2024

Introduction: Percutaneous coronary intervention (PCI) is an important treatment for acute coronary syndrome. The main puncture paths of PCI include radial artery, brachial artery, and femoral artery. The aim of this study was to investigate the safety and efficacy of transbrachial intervention in elderly patients. Methods: According to intraoperative and postoperative nursing records, a retrospective analysis was performed for 70 elderly patients who underwent coronary intervention were divided into brachial artery A group (33 cases) and brachial artery B group (37 cases) according to immediate postoperative extubation compression dressing and 6 hours postoperative extubation compression dressing, and matched elderly patients who had successful transradial artery puncture in the same period as radial artery group (35 cases). The success rate of puncture and catheterization, arterial puncture time, total operation time, length of hospital stay, patient comfort score, incidence of arterial spasm and occlusion, subcutaneous ecchymosis and hematoma, epidermal blister occurrence, vagal reflex, pseudoaneurysm development, arteriovenous fistula formation, nerve damage risk assessment and osteofascial compartment syndrome were compared. Results: Compared with the radial artery group, the brachial artery group (group A and group B) had a higher success rate of puncture and catheterization (97.0% vs. 97.3% vs. 80.0%, p = 0.013), shorter arterial puncture time (2.45 ± 0.38 vs. 2.40 ± 0.35 vs. 3.40 ± 0.37, p = 0.000), and lower incidence of arterial spasm (0.0% vs. 0.0% vs. 34.3%, p = 0.000), arterial occlusion (0.0% vs. 0.0% vs. 14.3%, p = 0.005) and puncture site bleeding (12.1% vs. 5.6% vs. 40.0%, p = 0.001). The incidence of epidermal blister was higher in brachial artery A group than in brachial artery B group (24.2% vs. 2.7%, p = 0.003) or radial artery group (24.2% vs. 0%, p = 0.001), and the incidence of epidermal blister in brachial artery B group and radial artery group was not much different. There was no difference between the three groups in total operation time, length of hospital stay, comfort score, subcutaneous ecchymosis and hematoma, vagal reflex, pseudoaneurysm, arteriovenous fistula, nerve damage and osteofascial compartment syndrome. Conclusion: In elderly patients, coronary intervention through brachial artery is not inferior to radial artery.
The Crime of Trafficking in Human Organs through the Information System: Comparative study
Authors: Al Hammad Hajar
Published: April 2024

Crimes no longer occur in their simple traditional form, as the development of human societies contributed to the development of crime and the creation of crimes that were not known before, and among these crimes is the crime of trafficking in human organs through the information system, which is one of the crimes that aided technical progress in the field of communications, information technology and the field of modern medicine to spread it; Organized criminal gangs took advantage of the facilities resulting from the development of information and communication technology to trade in human organs, which contributed to the creation of an electronic black market for human organs mafia gangs. The importance of this study stems from the fact that it is different from traditional crimes and is one of the issues emanating from technological progress and the development of organized crime. The study aims to clarify the provisions of the crime of trafficking in human organs through the information system, according to the comparative approach between the Saudi system and the UAE law. The results of the study showed that the Saudi regulator did not explicitly stipulate human organ trafficking in the cybercrime system, but was implicitly included as a form of criminal behavior for the crime of human trafficking in the Saudi human trafficking crime system, unlike the UAE law, which stipulates organ trafficking alongside human trafficking. According to the Saudi system, this crime is considered electronic if it occurs through the information network or a computer. In light of its results, the study concluded the following recommendations: 1. The Saudi cybercrime system explicitly provides for the criminalization of electronic trafficking in human organs as one of the forms of cybercrime, similar to its counterpart in UAE law. 2. Community awareness of the seriousness of this crime, the speed with which it is being investigated via the Internet, the ease with which offenders attract individuals, and financial reward for those who report or contribute to the commission of this crime.
Datos del manuscrito "Exceptionally high but still growing predatory reef biomass after 23 years of protection in a Mediterranean Marine Protected Area"
Authors: Rojo Moreno Irene , Anadón José Daniel , arcía Charton José Antonio
Published: April 2024

Datos de abundancia y biomasa de peces en arrecifes rocosos de la reserva marina de Cabo de Palos - Islas Hormigas, obtenidos mediante. censos de peces en inmersión con escafandra autónoma, durante el periodo 1996-2018
150 éves Paks város szervezett tűzvédelme
Authors: Csőglei István
Published: April 2024

A szervezett tűzvédelem kialakulását, a tűzoltóságok megalakítását Magyarországon sokan kutatták. Országos szinten, a fővárosban, illetve vidéken is neves elődök írták le az egyes szervezetek megalakulását, fejlődését. Kiadványokban emlékeztek meg a tűzoltóságok kerek évfordulóiról, elhivatott parancsnokairól, felszereléseiről, kiemelt tűz- és káreseteiről. Napjainkban számos történeti írás, kiadvány áll rendelkezésünkre, melyeket elérhetünk nyomtatott formában, vagy az elektronikus térben is. Mégis, amikor egy szervezet életében eltelik 15-20 év, újra felmerül az igény, hogy a korábbi kiadványok mintájára meg kellene emlékezni ezekről az évekről is. Ez nem könnyű feladat. Érdemes ebbe olyannak belekezdeni,aki ezt az időszakot aktívan, a szervezetben töltötte el. Fel kell továbbá kutatni azokat a személyeket, korábbi parancsnokokat, akik visszaemlékezéseikkel segíteni tudnak. Paks város szervezett tűzvédelmének kialakulása 1874-re vezethető vissza, 2024 évben ünnepeli fennállásának 150 éves évfordulóját. Ez nagyon hosszú idő. Számos nehézségen, szervezeti változáson, pusztító tűzeseten keresztül vezetett az út idáig. Ezt az eseménydús időszakot foglaltam össze írásomban.
On the Efficiency of Generic, Quantum Cryptographic Constructions
Authors: Xagawa Keita
Published: April 2024

One of the central questions in cryptology is how efficient generic constructions of cryptographic primitives can be. Gennaro, Gertner, Katz, and Trevisan [SIAM J. of Compt., 2005] studied the lower bounds of the number of invocations of a (trapdoor) one-way permutation in order to construct cryptographic schemes, e.g., pseudorandom number generators, digital signatures, and public-key and symmetric-key encryption.

Recently, quantum machines have been explored to _construct_ cryptographic primitives other than quantum key distribution. This paper studies the efficiency of _quantum_ black-box constructions of cryptographic primitives when the communications are _classical_. Following Gennaro et al., we give the lower bounds of the number of invocations of an underlying quantumly-computable quantum-one-way permutation when the _quantum_ construction of pseudorandom number generator and symmetric-key encryption is weakly black-box. Our results show that the quantum black-box constructions of pseudorandom number generator and symmetric-key encryption do not improve the number of invocations of an underlying quantumly-computable quantum-one-way permutation.
Differential-Linear Cryptanalysis of GIFT family and GIFT-based Ciphers
Authors: Wang Shichang , Liu Meicheng , Hou Shiqi , Lin Dongdai
Published: April 2024

At CHES 2017, Banik et al. proposed a lightweight block cipher GIFT consisting of two versions GIFT-64 and GIFT-128. Recently, there are lots of authenticated encryption schemes that adopt GIFT-128 as their underlying primitive, such as GIFT-COFB and HyENA. To promote a comprehensive perception of the soundness of the designs, we evaluate their security against differential-linear cryptanalysis.

For this, automatic tools have been developed to search differential-linear approximation for the ciphers based on S-boxes. With the assistance of the automatic tools, we find 13-round differential-linear approximations for GIFT-COFB and HyENA. Based on the distinguishers, 18-round key-recovery attacks are given for the message processing phase and initialization phase of both ciphers. Moreover, the resistance of GIFT-64/128 against differential-linear cryptanalysis is also evaluated. The 12-round and 17-round differential-linear approximations are found for GIFT-64 and GIFT-128 respectively, which lead to 18-round and 19-round key-recovery attacks respectively. Here, we stress that our attacks do not threaten the security of these ciphers.
Preliminary Cryptanalysis of the Biscuit Signature Scheme
Authors: Bouillaguet Charles , Sauvage Julia
Published: April 2024

Biscuit is a recent multivariate signature scheme based on the MPC-in-the-Head paradigm. It has been submitted to the NIST competition for additional signature schemes. Signatures are derived from a zero-knowledge proof of knowledge of the solution of a structured polynomial system. This extra structure enables efficient proofs and compact signatures. This short note demonstrates that it also makes these polynomial systems easier to solve than random ones. As a consequence, the original parameters of Biscuit failed to meet the required security levels and had to be upgraded.
Proximity Testing with Logarithmic Randomness
Authors: Diamond Benjamin , Posen Jim
Published: April 2024

A fundamental result dating to Ligero (Des. Codes Cryptogr. '23) establishes that each fixed linear block code exhibits proximity gaps with respect to the collection of affine subspaces, in the sense that each given subspace either resides entirely close to the code, or else contains only a small portion which resides close to the code. In particular, any given subspace's failure to reside entirely close to the code is necessarily witnessed, with high probability, by a uniformly randomly sampled element of that subspace. We investigate a variant of this phenomenon in which the witness is not sampled uniformly from the subspace, but rather from a much smaller subset of it. We show that a logarithmic number of random field elements (in the dimension of the subspace) suffice to effect an analogous proximity test, with moreover only a logarithmic (multiplicative) loss in the possible prevalence of false witnesses. We discuss applications to recent noninteractive proofs based on linear codes, including Brakedown (CRYPTO '23).
Bit Security as Cost to Demonstrate Advantage
Authors: Lee Keewoo
Published: April 2024

We revisit the question of what the definition of bit security should be, previously answered by Micciancio-Walter (Eurocrypt 2018) and Watanabe-Yasunaga (Asiacrypt 2021). Our new definition is simple, but (i) captures both search and decision primitives in a single framework like Micciancio-Walter, and (ii) has a firm operational meaning like Watanabe-Yasunaga. It also matches intuitive expectations and can be well-formulated regarding Hellinger distance. To support and justify the new definition, we prove several classic security reductions with respect to our bit security. We also provide pathological examples that indicate the ill-definedness of bit security defined in Micciancio-Walter and Watanabe-Yasunaga.
Optimizations and Practicality of High-Security CSIDH
Authors: Campos Fabio , Chávez-Saab Jorge , Chi-Domínguez Jesús-Javier , Meyer Michael , Reijnders Krijn , Rodríguez-Henríquez Francisco , Schwabe Peter , Wiggers Thom
Published: April 2024

In this work, we assess the real-world practicality of CSIDH, an isogeny-based non-interactive key exchange. We provide the first thorough assessment of the practicality of CSIDH in higher parameter sizes for conservative estimates of quantum security, and with protection against physical attacks.

This requires a three-fold analysis of CSIDH. First, we describe two approaches to efficient high-security CSIDH implementations, based on SQALE and CTIDH. Second, we optimize such high-security implementations, on a high level by improving several subroutines, and on a low level by improving the finite field arithmetic. Third, we benchmark the performance of high-security CSIDH. As a stand-alone primitive, our implementations outperform previous results by a factor up to 2.53×.

As a real-world use case considering network protocols, we use CSIDH in TLS variants that allow early authentication through a NIKE. Although our instantiations of CSIDH have smaller communication requirements than post-quantum KEM and signature schemes, even our highly-optimized implementations result in too-large handshake latency (tens of seconds), showing that CSIDH is only practical in niche cases.
Broadcast Encryption using Sum-Product decomposition of Boolean functions
Authors: Dupin Aurélien , Abelard Simon
Published: April 2024

The problem of Broadcast Encryption (BE) consists in broadcasting an encrypted message to a large number of users or receiving devices in such a way that the emitter of the message can control which of the users can or cannot decrypt it.

Since the early 1990s, the design of BE schemes has received significant interest and many different concepts were proposed. A major breakthrough was achieved by Naor, Naor and Lotspiech (CRYPTO 2001) by partitioning cleverly the set of authorized users and associating a symmetric key to each subset. Since then, while there have been many advances in public-key based BE schemes, mostly based on bilinear maps, little was made on symmetric cryptography.

In this paper, we design a new symmetric-based BE scheme, named

Σ
Π

BE, that relies on logic optimization and consensual security assumptions. It is competitive with the work of Naor et al. and provides a different tradeoff: the bandwidth requirement is significantly lowered at the cost of an increase in the key storage.
Computing isogenies between finite Drinfeld modules
Authors: Wesolowski Benjamin
Published: April 2024

We prove that isogenies between Drinfeld F[x]-modules over a finite field can be computed in polynomial time. This breaks Drinfeld analogs of isogeny-based cryptosystems.
Нужен ли медикам GPT-4: анализ актуального мирового опыта
Authors: Адылова Ф.Т. , Давронов Р.Р.
Published: April 2024

Большие языковые модели (LLM) продемонстрировали замечательные возможности в понимании и генерации естественного языка в различных областях, включая медицину. В статье представлена оценка GPT-4 на основе двух точек зрения на проблему применения этой языковой модели: разработчиков из OpenAI, Microsoft и пользователей-медиков из двух европейских проектов. За последние несколько лет LLM, обученные на массивных междисциплинарных корпусах, стали мощными строительными блоками при создании систем, ориентированных на решение конкретных задач. В статье рассматривается три задачи: медицинское образование, работоспособность ChatGPT-4 в клинике (консультации, записи стенограмм беседы врача и пациента), и конкретные уровни точности диагностики (разные области медицины). Ответ на поставленный вопрос о необходимости медицинского GPT есть в мире, -он положительный.
Yuz tasvirlarini segmentlashning an’anaviy va mashinali oʻqitish usullari
Authors: Mamatov N.S. , Erejepov K.K. , Narzullayev I.S. , Jalelova M.M.
Published: April 2024

Tasvirlarni segmentlash kompyuterli ko‘rish va tasvirlarni qayta ishlash sohasida muhim vazifa bo‘lib, so‘nggi yillarda turli sohalarda, shu jumladan xavfsizlik tizimlari, biometrik tizimlar, tibbiy diagnostika va boshqa ilovalarda keng qo‘llanilib kelinmoqda. Tasvirlarni segmentlashning an’anaviy usullari amalga oshirish qulayligi, yuqori ishlov berish tezligi va cheklangan miqdordagi ma’lumotlar bilan ishlash qobiliyati sabab segmentlash usullari orasida mashhurdir. Mazkur ishda yuz tasvirlarini segmentlashning an’anaviy usullari tadqiq qilingan bo‘lib, ushbu usullarni har birini o‘ziga xos xususiyatlari, yutuq va kamchiliklari bayon etilgan. Shuningdek, segmentlashda qo‘llaniladigan mashinali o‘qitish usullari haqida ma’lumotlar va ularni qiyosiy tahlil natijalari keltirilgan.
Об одной минимаксной задаче оптимизации для модели динамических систем в форме управляемых дифференциальных включений с запаздывающим аргументом
Authors: Отакулов С. , Холиярова Ф.Х.
Published: April 2024

В работе рассматривается один класс управляемых дифференциальных включений с запаздывающим аргументом. Для этой модели динамических систем исследована задача оптимального управления ансамблем траекторий по минимаксному критерию. В данной минимаксной задаче изучены условия оптимальности. Получены необходимые и достаточные условия оптимальности. Используя полученные результаты, дан алгоритм нахождения оптимального управления.
Kompyuter tarmoqlarida uzatilayotgan axborotni kriptografik himoyalash usuli
Authors: Ganiyev A.A. , Mavlonov O.N. , Shodmonov D.A. , Maxmudov J.I.
Published: April 2024

Mazkur maqolada Steganografik himoyadagi mavjud kamchiliklarni bartaraf etishda kriptografik himoya mexanizmlari ko‘rib chiqilgan. Steganografiyaning maqsadi maxfiy xabarlarni raqamli kontentlarga hech kim bunday xabarlar mavjudligini aniqlashga imkon bermaydigan tarzda yashirishdan iborat bo‘lib, u maxfiy xabarning tuzilishini o‘zgartirmasdan, maxfiy xabarni ochiq xabar tarkibiga yashiradi. Shuning uchun o‘zgarishni aniqlash murakkab  hisoblanadi. Steganografiya usulining bardoshligi ushbu usulning maxfiyligiga bog‘liq bo‘lib, stegotahlil usuli yashirish usulini aniqlashni maqsad qiladi. Steganografik himoyadagi mavjud kamchiliklarni bartaraf etishda kriptografik himoya mexanizmlaridan foydalanish mumkinligini inobatga olgan holda kriptografik-staganografik himoyalash usuli taklif etilgan, ushbu usul asosida ishlab chiqilgan himoya mexanizmi to‘laqonli himoyani ta’minlashi isbotlandi.
تحليل مقاييس لدورة تبريد ضغط البخار باستخدام وبدون استخدام المبادل الحراري بواسطة موائع التبريد البديلة
Authors:   كلية العلوم التقنية، درنة، ليبيا, بوزيد عبد المنصف عبد الله , بكار فتح ألله حمد , الكريمي عبد القادر عبد الدائم
Published: April 2024

One of the most commonly refrigeration systems is the vapor compression refrigeration system. Since energy saving and environmental friendliness remain a challenge, researchers are working hard to find an effective solution to improve the performance of vapor compression refrigeration systems while committing to environmental standards. The main goal of this paper is to identify the best and closest alternative refrigerant to R22 among the alternative cooling fluids taken into consideration in terms of thermodynamic and mechanical properties, environmental protection, and safety of handling. This work presents an analysis and comparison of the various performance measures for a vapor compression refrigeration cycle operating without using and using a heat exchanger for environmentally friendly alternative refrigerants, namely R410A, R407A, R407C, R438, RS-44b, and R417A, and compares them with the refrigerant R22, which has direct environmental impacts on the ozone layer (ODP) and global warming (GWP). The computer simulation program Chemours Refrigerant Expert 1 was used to conduct the analyses. The performance parameters analyzed are coefficient of performance, compressor work, cooling capacity, temperature of condensation, intake and exhaust pressure, volumetric capacity, theoretical displacement, intake, exhaust, condensation and evaporation temperature without and with a heat exchanger, and super heating temperature with a heat exchanger. It was concluded from this study that the best alternative to R22 refrigerant among the alternative refrigerants taken into consideration in the study is the RS-44b refrigerant in terms of all performance measures and environmentally friendly. Keywords: Refrigerant; Vapor compression; Performance measures; Evaporation; Heat exchanger.
Pengembangan E-Modul Kimia Materi Asam Basa Berbasis Flip PDF Professional untuk Peserta Didik Kelas XI SMA Negeri 1 Menganti
Authors: Ashari Vanantia Randi , Fatirul Achmad Noor , Walujo Djoko Adi
Published: April 2024

The purpose of this study is to produce an e-module for class XI students of SMA Negeri 1 Menganti acid base material that is interesting and easier for students to understand by using Flip PDF Professional. This research is a development research. The e-module development in this study uses the ADDIE model which consists of five stages, namely analysis, design, development, implementation, and evaluation. At the analysis stage, an analysis of the curriculum, student characteristics, teaching materials, and materials was carried out. In the design phase, an e-module development design plan is created. The development stage is e-module development, review, expert validation test (media experts, design, materials, and colleagues), and revision. The implementation stage is the implementation of the e-module trial. There are three module trials, namely small, medium and large groups. At the evaluation stage, questionnaires were given to students' responses. The results of chemical e-module validation by design experts, media experts, material experts and colleagues obtained successive percentages of 90%, 85.33%, 90% and 91%, and were declared very valid. The chemical e-module for acid-base materials received very good responses in small, medium and large group trials with percentages of 93%, 92.6% and 90.03%.
Pengaruh Pembelajaran Sosial Emosional Versus Konvensional dan Motivasi terhadap Hasil Belajar Mapel Kimia Siswa Kelas X di SMA Negeri 20 Surabaya
Authors: Pamungkas Agus Dwi , Rusmawati Retno Danu , Harwanto Harwanto
Published: April 2024

The development of this research was carried out with the aim of finding answers to the problems described in the problem formulation above, namely to find out differences in learning outcomes in students who took Social Emotional Learning (PSE) versus conventional in chemistry subject class X at SMA Negeri 20 Surabaya, to find out differences in learning outcomes for students who have high and low learning motivation in chemistry subject class XI at SMA Negeri 20 Surabaya, to determine the interaction between Social Emotional Learning (PSE) and motivation on learning outcomes at SMA Negeri 20 Surabaya. In this study, the population used was a limited population and the sample in this study was 114. The data analysis technique used in this study was two-way analysis of variance. used to test the hypothesis, the hypothesis can be accepted and tested for truth if the price of the F table is greater than the probability value, with a significant level of 0.05. Data collection methods used in this research are questionnaires and tests. The design used in this research is a 2x2 factorial design. Based on the data obtained in this study it can be concluded that Social Emotional Learning (PSE) and Conventional Learning have an influence on student learning outcomes, this can be seen from the t test. There is a significant difference between the two methods as indicated by a significant difference in the t value between the two methods, where the PSE t value is greater than the conventional learning t value. It can be said that Social Emotional Learning has more influence on learning outcomes compared to Conventional Learning. In other words, the first hypothesis that there is a difference between the two methods is acceptable. There are differences in learning outcomes between students who have high learning motivation compared to students who have low motivation. This can be seen from the t test of learning motivation on learning outcomes with a significance value below 0.05, which means that the second hypothesis is accepted.
Pengaruh Metode Game Based Learning Terhadap Kemampuan Motorik Kasar Dan Kemampuan Sosial Emosional Anak TK (The Effect of Game Based Learning Methods on Gross Motor Abilities and Social Emotional Abilities of Kindergarten Children)
Authors: Pujayanti Falsafah Hari , Sumiharsono Rudy , Triwahyuni Eges
Published: April 2024

The purpose of this study was to find out whether using the game based learning method could improve gross motor skills and social emotional abilities of group B children at Kindergarten Nurul Fatah. Variable X, (game based learning method) 3 indicators. 1) increase learning effectiveness, 2) higher interest in learning, 3) increase learning motivation. Y1 (gross motor) 4 indicators, 1) walking, 2) running, 3) jumping, 4) throwing. Y2 (social emotional) 3 indicators, 1) managing emotions, 2) EXPRESS EMOTIONS, This research design uses causal quantitative. The method of determining the area by purposive sampling area. The population research population research technique consisted of 31 children in group A. Data collection techniques: 1). observation, 2). interview, 3). document. The results of the interviews are then processed into several instrument tests of validity and reliability tests, then the classic assumption test includes the normality test, homogeneity test, autocorrelation test, and heteroscedasticity test, and finally is the hypothesis test which includes the t test and F test. The results are the test results t X to Y1 3.355> 2.048, X to Y2 3.052> 2.048 FX test results to Y1 and Y2 sig <0.05 (0.008 <0.05). So it can be concluded that the game based learning method affects gross motor skills and social emotional abilities.
Pengaruh Penggunaan Modul IPA Berbasis Problem Based Learning (PBL) Terhadap Keterampilan Proses Sains Dan Keterampilan Berpikir Kritis Siswa (The Effect of Using Problem Based Learning (PBL) Natural Sciences Modules on Students' Science Process Skills a
Authors: Aulia Rizky Eka , Sumiharsono Rudy , Triwahyuni Eges
Published: April 2024

The purpose of this study was to find out whether using the Problem Based Learning (PBL) module can improve (PBL) Science Process Skills and Students' Critical Thinking Skills. Research design: causal quantitative, determination of research area: purposive sampling area, determination of respondents: population research area. Data collection: 1). observation, 2). interview, 3). document. Data analysis 1) instrument test, 2) classic assumption test, 3) hypothesis test. Based on the results of the F-test analysis, it can be decided that the significance level is 0.001 or less than 0.05 and the F-count value is greater than the F-table (3.367 > 2.901). According to Mulyono (2018: 113), it can be decided that H0 is rejected so that it can be taken the conclusion that the independent variable has a significant influence on the dependent variable. This means that it can be concluded that there is an effect of using the Problem Based Learning module (variable X) on science process skills (variable Y1) and critical thinking skills (variable Y2) jointly with class X SMK PGRI Sempu in the even semester of the 2022/2023 academic year. So it can be concluded that the Problem Based Learning (PBL) Module has an effect on Science Process Skills and Students' Critical Thinking Skills and H0 is rejected.
Online Complaints on Hotel Services in Indonesia: A Comparison Study of Asian and English-Speaking Country Visitors
Authors: Nurhikmawati Agita Risma , Puspitasari Dhika
Published: April 2024

Communication in the Indonesian hospitality industry impacts on the growth of domestic and foreign tourists’ number who visit the country. And one of the communication forms in this business is visitor review on hospitality platforms. This review offers several advantages since, for example, hotels will be able to find out customers' levels of satisfaction, needs, or complaints on hotel services and facilities. And these aspects can be used to evaluate the business’ performance in gaining profit. Based on that urgency, this study aims to investigate the complaint structures and strategies written by Asian and English-speaking country visitors on both domestic chain hotels (DCH) and international chain hotels (ICH) in the TripAdvisor page, an international-based travel site. Furthermore, a qualitative descriptive research method is employed along with note-taking as the data collection technique, and the theory used is the complaint speech act strategy presented by Trosborg. The results of this study indicate that the complaint structure consists of several components, namely: title, opening sentence, content (complaint sentence), closing sentence, and parting or valediction. In detail, the structure component that appears the least is parting since it is only found in Asian visitor reviews on ICH. While, the most common complaint strategy used by DCH and ICH visitors is annoyance. It can be concluded that there is no significant difference in the use of complaints strategies between Asian and English-speaking country visitors in both DCH and ICH. It happens due to globalization where the world communities carry out high mobility between cultures even though they have geographical boundaries; thus, they are able to influence each other frequently
Penerapan Pendekatan Komunikatif dalam Meningkatkan Keterampilan Berbicara Bahasa Inggris (Studi Kasus Pembelajaran Bahasa Inggris dalam Perspektif Pendidikan Nilai)
Authors: H. Soro Suharyanto , Ermya Jana , Salman Joko
Published: April 2024

The communicative approach is one (option) that can be used in learning by teachers to their students in order to transfer knowledge (cognitive domain) as provision in navigating world life. Each approach to learning has advantages and disadvantages so that teachers are required to be creative in delivering teaching material. This study aims to describe the application of a communicative approach in learning so that it can improve students' English speaking skills. Researchers use a case study approach. Methods of data collection using observation and interview methods. The samples in this study were taken by purposive sampling. The results of the research findings indicate that the application of a communicative approach in learning English carried out by teachers can improve students' speaking skills. In the educational value perspective, this approach focuses on students' performance so that they can form habits in using English as a foreign language in communication interactions.
Enhancing Efl Students’ Interest and Learning Outcomes Through The Scientific Learning Approach
Authors: Ningsih Rambe Sri , Ichsanda  Rahman Benni
Published: April 2024

This study aims to investigate the effectiveness of the scientific learning approach to students' interest and learning outcomes in learning English in class IX MTs in Medan. Researchers used a descriptive quantitative approach and pre-test and post-test methods to collect data. The research population was 30 students. The sample used a saturated sample of 30 students (Sugiyono, 2017). For data collection, the researcher used 8 measurement indicators to measure students' learning interest and used the KKM standard = 75 to measure student learning outcomes through the test during the English learning activities. The data is then coded and tabulated using a percentage-based value. The results of these findings indicate that 1). According to the results of the standard pre-test, it was not possible to boost student learning interest and student learning outcomes in class. 2). The post-test using a scientific learning approach was said to be capable of increasing student learning interest and student learning outcomes in class when studying English.
Pengaruh Kecerdasan Emosional terhadap Prestasi Belajar Matematika Peserta Didik Kelas V SDN Rambutan 03 Pagi
Authors: Hanifah Nida , Gunawan Rudy
Published: April 2024

This research aims to determine whether or not there is a positive influence between emotional intelligence on the mathematics learning achievement of class V students at SDN Rambutan 03 Pagi, East Jakarta. This research is ex-post facto research. This research is quantitative research. The variables in this research are the independent variable (emotional intelligence) and the dependent variable (learning achievement). Use of documentation data such as the average score of students' report cards and the emotional intelligence scale as a data collection method. This research uses data analysis techniques in the form of simple linear regression analysis. The research results showed that the R Square (coefficient of determination) was 0.051 or in percent form 5.1%. Based on the results, the contribution of variable X to Y is 5.1% while the remaining 94.9% is based on other factors. These factors can be external factors (originating from outside a person) or internal factors (originating from within a person). The influence of emotional intelligence on participants' learning achievement has a regression equation, namely Y = 61.835 + 0.296, which means that every increase in emotional intelligence by one value can reduce the learning achievement value by 0.296. It was concluded that emotional intelligence greatly influences the mathematics learning achievement of class V students at SDN Rambutan 03 Pagi.
The Influence of Using the Student Facilitator and Explaining Model in Learning Speaking Skills at Madrasah Ibtidaiyah
Authors: Purnamasari Arini , Nugrahani Farida , Suwarto Suwarto
Published: April 2024

This research aims to determine whether there is an influence of the Student Facilitator and Explaining (SFAE) model on students' speaking skills at Madrasah Ibtidaiyah. This research method uses Quasi Experimental Design, a form of Nonequivalent Control Group Design. The data for this research are the results of learning speaking skills using the Student Facilitator and Explaining (SFAE) model. The sample for this research was 40 Madrasah Ibtidaiyah students. Data collection techniques include interviews and questionnaires. Before analysis, the data was tested using expert validity, normality and homogeneity tests. Next, a hypothesis test was carried out using T test analysis (T-Test), namely the Independent Simple T-Test. Output results of the normality test using the Shapiro Wilk test with the help of SPSS version 20. 0 for windows by looking at the Pretest data, the experimental class value is 0.379 > 0.05 and the control class value is 0.491 > 0.05, indicating that the data variance for the experimental class and control class is normally distributed. After knowing that the samples are normally distributed, the next step is to carry out a normality test to find out whether the two samples have the same variance. The statistical analysis used to test homogeneity is the homogeneity of variance test (F Test) with the help of SPSS version 20.0 for Windows. Significance level >0.05. Data is declared homogeneous if the significant value is greater than 5% or 0.05. The results of the research showed that the control class got an average pretest to posttest score which increased. In the experimental class, the average student pretest to posttest scores also increased. In the analysis of hypothesis testing using the t test (independent sample t test) by comparing the experimental class posttest data with the control class posttest, it shows that the application of the Student Facilitator and Explaining (SFAE) learning model has no effect on the speaking skills of students at Madrasah Ibtidaiyah.
9. Implemetasi Algoritma You Only Look Once (YOLO) menggunakan Web Camera untuk Mendeteksi Objek Statis dan Dinamis
Authors: Zophie Jeremia , Himawan Triharminto Hendri
Published: April 2024

Teknologi kamera telah mengalami perkembangan yang pesat. Saatini kamera bukan hanya digunakan untuk mengambil citra atau membuat videosecara utuh. Akan tetapi, kamera dapat digunakan untuk mendeteksi objek yangdiinginkan. Pengembangan deteksi objek yang dilakukan menerapkan algoritmaYou Only Look Once (YOLO). Algoritma ini digunakan karena dijalankan pada duaframework yaitu Darknet dan Darkflow. Algoritma YOLO merupakan algoritma deeplearning untuk mendeteksi objek yang menggunakan pendekatan berbeda darialgoritma lain, yaitu menerapkan sebuah jaringan syaraf tunggal pada keseluruhancitra. Pengembangan deteksi objek dilakukan pada interface desktop denganbahasa C dan Phyton. Untuk menguji kehandalan dari algoritma YOLO, makaalgoritma akan diujikan pada dua skenario. Pertama pengujian secara langsungyang dilakukan pada webcam yang telah diimplementasikan YOLO dan yang keduasecara tidak langsung dimana objek citra berupa citra JPG dan video mp4. Keduaskenario tersebut divariasikan kembali berdasarkan jarak dan intensitas cahaya.Hasil dari percobaan ini pengujian YOLO diukur menggunakan confusion matrixdan mendapatkan hasil akurasi sebesar 69,5652%, kesalahan klasifikasi sebesar26,0869%, ketelitian sebesar 94,1176%, dan kekhususan sebesar 50%.
1. Perkembangan Geopolitik Indo-Pasifik: Implikasinya pada Pengelolaan Kekuatan Udara dan Antariksa
Authors: Raharja Dinna Prapto
Published: April 2024

Siap menghadapi ancaman pelanggaran kedaulatan, radikalisme, terorisme, dan bencana alam adalah pesan Presiden Joko Widodo kepada Tentara Nasional Indonesia (TNI) dalam upacara peringatan hari ulang tahun TNI ke-76 pada tahun 2021. Apa saja perkembangan geopolitik terkini yang patut dicermati oleh TNI, khususnya Angkatan Udara? Artikel ini mengungkap perkembangan geopolitik yang terpadu dengan geoekonomi dan geostrategis di kawasan. Menelusuri publikasi dari sejumlah lembaga- lembaga penelitian, lembaga pemerintah, dan jurnal-jurnal internasional yang membahas tentang geopolitik, kekuatan udara and antariksa, industri pertahanan dan diplomasi kekuatan udara dan antariksa, ditemukan bahwa ambisi saling menyerang dan perlombaan senjata makin memprihatinkan di kawasan Indo-Pasifik. Perlombaan senjata yang terjadi dan ambisi untuk saling menyerang antara AS, China dan Rusia belum secara efektif dikendalikan lewat mekanisme diplomasi ASEAN. Rencana Strategis Kementerian Pertahanan dan kegiatan diplomasi perlu disesuaikan agar tidak kalah jitu dan cepat dalam merespon perkembangan ketegangan di kawasan.
2. The Importance Of Air Defense System In The Modern Warfare: The Case Of Russia’s Air Superiority In Syria
Authors: Pandelaki Militia Christi , Perwita Anak Agung Banyu , Pramono Budi
Published: April 2024

Wilayah Mediterania Timur kini menjadi kawasan paling strategis bagi kemajuan pertahanan udara Rusia. Setelah intervensinya di teater Suriah, Rusia terlihat dapat mempertahankan jejak militernya dengan menyebarkan sistem pengawasan terintegrasi yang berhasil mengundang perhatian dunia terhadap pembangunan kapabilitas A2/AD (anti access/area denial). Rusia tampaknya telah memastikan peningkatan teknologi perang dengan keterlibatannya di perang Suriah. Dengan menjadi bos wilayah udara Suriah, Rusia pun mengambil kesempatan tersebut untuk melakukan beberapa pelatihan militer dalam pengalaman tempur yang sebenarnya. Dengan demikian, artikel ini kemudian menemukan bahwa dari sudut pandang peningkatan dan penyempurnaan militer, kehadiran militer Rusia berada pada posisi yang paling diuntungkan terkait dengan peluang untuk menggunakan lingkungan permisif Suriah. Secara keseluruhan, artikel ini meyakini bahwa kemunculan dan kelanjutan aksi militer Rusia di kancah global akan selalu berakar pada persepsi ancamannya terhadap suku Barat.
8. SCHEDULE MAINTENANCE PENGGANTIAN KOMPONEN BLEED AIR REGULATOR PADA PESAWAT BOEING 737-400/500 SKADRON UDARA 17 BERDASARKAN PERHITUNGAN RELIABILITY
Authors: Adi Wibowo Sunar , Bhirawa WT. , Arianto Basuki
Published: April 2024

Frekuensi penggantian komponen Bleed Air Regulator pada pesawat Boeing 737-400/500 Skadron Udara 17 masih tinggi. Kerusakan komponen tersebut menimbulkan terhentinyakegiatan operasional pesawat (Aircraft On Ground). Komponen Bleed Air Regulator bersifat hardtime dan harus dilakukan penggantian jika telah mencapai 5.000 jam. Oleh karena itu perludiketahui tingkat reliability komponen Bleed Air Regulator yang telah terpasang sebelumnyasehingga dapat dilakukan penjadwalan penggantian (schedule maintenance) komponen BleedAir Regulator berdasarkan analisis pemeliharaan. Data yang diperoleh dari hasil pengamatankemudian dilakukan perhitungan reliability dengan menggunakan failure rate, Mean Time BetweenFailure (MTBF), Mean Time Between Maintenance (MTBM) dan perhitungan nilai kehandalan. Setelahdiketahui nilai kehandalan komponen Bleed Air Regulator selanjutnya dilakukan analisis sebagaibahan pertimbangan penjadwalan penggantian komponen Bleed Air Regulator tersebut.Hasil perhitungan reliability menunjukkan bahwa (MTBUR) 5.000 jam sesuai dengan reko- mendasimanufaktur sudah sangat rendah yaitu sebesar 21,96 %. Hal tersebut tidaklah efektif jika dilakukanpenggantian disetiap 5.000 jam. Nilai kehandalan dengan target reliability di atas 60 % yaitu padaMean Time Between Unschedule Removal (MTBUR) 1000 dan 1500 jam. Analisis pemeliharaansebagai bahan pertimbangan penentuan penjadwalan penggantian komponen Bleed Air Regulatorberdasarkan hasil perhitungan nilai kehandalan dan analisis pemeliharaan, shedule maintenancepenggantian komponen Bleed Air Regulator yang dapat diterapkan yaitu pada Mean Time BetweenUnschedule Removal (MTBUR) 1500 jam dengan survival/reliability function yang dapat diterapkanyaitu 63,46 % dengan kemungkinan kerusakan (possibility to failure) sebesar 36,54 %.