bluuebunny/crossref_metadata_2025 huggingface dataset:
Penilaian Indeks Kerentanan Infrastruktur Sanitasi Kota Padang dalam Menghadapi Skenario Bencana Gempa dan Tsunami
Authors: Zamzamy Ary , Helard Denny , Hidayat Benny
Published: March 2024

Kota Padang berada pada jalur Ring of Fire yang memiliki risiko yang cukup besar terhadap ancaman gempa dan tsunami yang juga berdampak terhadap fasilitas infrastruktur sanitasi. Penelitian ini bertujuan untuk melakukan penilaian kerentanan infrastruktur sanitasi saat menghadapi skenario bencana gempa dan tsunami di Kota Padang. Metode yang dipakai dengan memberikan bobot nilai kerentanan melalui pendekatan & penyesuaian. Nilai kerentanan yang diperoleh berupa 1 untuk tingkat kerentanan rendah dan 3 untuk kerentanan tinggi dengan menghitung setiap parameter fasilitas sanitasi. Hasil penilaian kerentanan fasilitas sanitasi terhadap skenario gempa berada pada tingkat kerentanan rendah. Hasil penilaian kerentanan terhadap skenario tsunami memiliki nilai yang beragam, diantaranya 26,3% sistem drainase primer memiliki kerentanan rendah, 68,4% lainnya memiliki kerentanan tinggi. TPA memiliki kerentanan rendah. 78,7% kontainer sampah memiliki kerentanan tinggi dan 21,2% memiliki kerentanan rendah. IPLT memiliki kerentanan kerentanan tinggi. 44,7% TPST3R memiliki nilai kerentanan tinggi dan sisanya memiliki tingkat kerentanan rendah. 55% IPAL komunal memiliki nilai kerentanan rendah dan 45% memiliki kerentanan tinggi. Rekomendasi yang diberikan kepada Pemkot Padang yaitu mengaplikasikan metode pembangunan sesuai standar dan peraturan terkait cara membangun fasilitas di daerah rawan bencana gempa dan tsunami serta mengaplikasikan teknologi yang diperlukan pada banguunan sanitasi agar mampu bertahan terhadap bencana gempa dan tsunami.
Analisis Penyebab Kecelakaan Lalu Lintas (Studi Kasus: Rute Kota Padang-Arosuka-Solok Sitinjau Lauik)
Authors: Sari Mesla PutriPermata , Oktavian Oktavian
Published: March 2024

Seringnya terjadi kecelakaan lalu lintas di ruas jalan Sitinjau Luik mendorong peneliti untuk mengidentifikasi faktor-faktor penyebab kecelakaan lalu lintasnya Penelitian ini bersifat kuantitatif pendekatan deskriptif dengan menggunakan metode instrumen penelitian. Teknik pengumpulan data menggunakan teknik Accidental Sampling dengan sampel sebanyak 35 sampel, diambil dari populasi tak terhingga pada ruas jalan Sitinjau Lauik. Berdasarkan hasil pengujian hipotesis uji korelasi berganda diketahui nilai r hitung ≥. r tabel, artinya antar variabel memiliki hubungan yang kuat. Adapun nilai uji t diketahui bahwa nilai t hitung seluruh variabel ≥ t tabel, artinya seluruh variabel independent berpengaruh terhadap variabel dependent.  Sedangkan untuk uji koefisien determinasi nilai Kd adalah 100%. Artinya antara variabel bebas.(X1, X2, X3) dengan variabel terikat (Y) memiliki pengaruh yang kuat sebesar 1 atau tepatnya 100%.
Analisis Level of Service Terhadap Ruas Jalan Sawahan Kota Padang
Authors: Roza Angelalia , Wahab Wilton , Yusnita Yessy , Putra Fauzi , Sari Nadra
Published: March 2024

Jalan Sawahan merupakan salah satu ruas jalan yang selalu dipadati arus kendaraan saat mengakses Pusat Kota Padang. Berdasarkan observasi awal yang dilakukan, ditemui kemacetan di ruas jalan tersebut, terutama pada jam sibuk di pagi dan sore hari. Penelitian ini bertujuan untuk mengevaluasi kinerja ruas Jalan Sawahan yang ditinjau dari Level of Service (LOS) dan memprediksi pelayanan ruas jalan tersebut pada 10 tahun yang akan datang. Analisis tingkat pelayanan ruas jalan dilakukan merujuk PKJI 2014. Hasil analisis Level of Service (LOS) ruas jalan Sawahan pada jam puncak tertinggi adalah hari Minggu dengan waktu jam puncak yaitu jam 16.00 – 17.00. Ini menunjukkan LOS pada kategori C yang berarti arus stabil, tetapi kecepatan dan pergerakan kendaraan masih dikendalikan. Akan tetapi menurut hasil analsisa forecasting untuk tahun 2032, nilai volume lalu lintasnya (V) diprediksi sebesar 3381,73 skr/jam, dengan nilai kapasitas 2903,19 skr/jam. Diduga Level Of Service (LOS) pada ruas Jalan Sawahan Kota Padang akan menurun menjadi 1,16 untuk kedua sisi ruas jalan dan berada pada level “F” dengan karakteristik arus yang dipaksakan atau macet, kecepatan rendah,  volume diatas kapasitas, antrian panjang dan terjadi hambatan besar. Dengan demikian hasil kajian semoga ini dapat menjadi catatan bagi pihak yang berkepentingan untuk ditindaklanjuti sebagai upaya peningkatkan pelayanan ruas jalan tersebut.
Variabel yang Mempengaruhi Pemilihan Moda Angkutan Lanjutan di Bandara Internasional Minangkabau
Authors: Ismail Ismail , Purnawan Purnawan , Yosritzal Yosritzal
Published: March 2024

Penumpang Bandara Internasional Minangkabau (BIM) meningkat setiap tahunnya pada tahun 2014 sebanyak 2.791.411 penumpang tahun 2015 naik 13,53%, tahun 2016 naik 13,6%,  tahun 2017 naik 9,87% tahun 2018 naik 4.66%. Permasalahannya adalah peningkatan jumlah penumpang tidak didukung dengan peningkatan moda transportasi lanjutan dari bandara. Penelitian ini bertujuan mendapatkan model matematika pemilihan moda angkutan,  proporsi pengguna moda di BIM antara mobil  pribadi, kereta api, taksi konvensional, taksi online, travel dan mini bus damri serta untuk mendapatkan variabel-variabel yang paling berpengaruh pada pemilihan moda angkutan lanjutan di bandara. Metode yang digunakan dalam penelitian ini adalah analisis data preferensi penumpang dengan mengkombinasikan model logit binomial dan logit multinomial terhadap 14 variabel-variabel yang dianggap mempengaruhi pemilihan transportasi akses dari bandara dengan menggunakan perangkat lunak SPSS untuk medapatkan model logit pemilihan moda. Hasil penelitian ini menunjukkan proporsi pengguna kendaraan pribadi sebesar 0,413, proporsi pengguna kereta api 0,080, proporsi pengguna taksi konvensional 0,032, proporsi pengguna taksi online 0,273, proporsi pengguna jenis travel 0,170 dan proporsi pengguna mini bus damri 0,033. Pemilihan moda angkutan umum dari bandara sangat dipengaruhi oleh beberapa varibel yaitu jarak perjalanan, ketepatan waktu moda kendaraaan, waktu tempuh, kenyamanan, jumlah bagasi, jumlah anggota rombongan, pendapatan dan latar pendidikan.
Pengaruh Permeabilitas Tanah terhadap Laju Infiltrasi di Daerah Pengembangan Permukiman Kota Padang
Authors: Nasution Hoirunjamiah , Andayono Totoh
Published: March 2024

Bertambahnya jumlah penduduk di kota Padang mengakibatkan kebutuhan lahan di kota Padang semakin meningkat dan berdampak pada pembangunan. Hal ini menyebabkan daerah resapan air hujan di kota Padang sangat sulit ditemukan, karena banyak lahan hijau telah beralih fungsi menjadi kawasan permukiman hingga areal pertokoan dan pusat-pusat perkantoran. Penelitian ini dilakukan  bertujuan untuk mengungkapkan seberapa besar pengaruh permeabilitas tanah terhadap laju infiltrasi di daerah pengembangan permukiman kota Padang. Penelitian ini merupakan penelitian kuantitatif dengan pendekatan korelasional. Data yang digunakan berupa data primer  yang didapatkan langsung dilapangan berupa data nilai laju infiltrasi dengan menggunakan alat Turf-Tec Infiltrometer, dan didapatkan dari pengukuran di Laboratorium  berupa data nilai gradasi butiran (tekstur tanah) yang hasilnya didapatkan dari uji saringan (ayakan) dan uji hidrometer, serta data nilai permeabilitas dengan menggunakan alat permeameter. Sedangkan data sekunder didapatkan pada literatur atau arsip pemerintahan. Berdasarkan hasil uji permeabilitas tanah dan uji infiltrasi, diperoleh hasil bahwa tidak ada hubungan (tidak berkorelasi) antara permeabilitas tanah dan laju infiltrasi pada daerah pengembangan permukiman di kota Padang. Sedangkan  permeabilitas tanah hanya berpengaruh sebesar 4,9 % terhadap laju infiltrasi.
Pengaruh Covid-19 terhadap Pelaksanaan Praktek Kerja Industri Siswa Teknik Bangunan SMK N 1 Sumbar
Authors: Mardizal Jonni , Narwansyah Rezo Haristama
Published: March 2024

Penelitian ini dilakukan untuk mengetahui besarnya pengaruh COVID-19 terhadap pelaksanaan Praktek Kerja Industri siswa Teknik Bangunan SMK N 1 SUMBAR. Penelitian ini termasuk penelitian kuantitatif pendekatan asosiatif. Populasi penelitian ini adalah siswa kelas XI Teknik Bangunan, yang berjumlah 50 siswa. Pengumpulan data menggunakan angket. Angket digunakan untuk mengukur variabel COVID-19 dan Praktek Kerja Industri. Pengujian instrumen dilakukan di SMK N 1 SUMBAR dengan jumlah siswa Kelas XI Program Keahlian Mekatronika sebanyak 30 orang. Teknik analisis data yang digunakan ialah uji normalitas dan linieritas, serta uji hipotesis yaitu analisis regresi sederhana. Hasil menunjukkan dampak positif dan signifikan COVID-19 terhadap pelaksanaan praktik kerja industri oleh siswa teknik bangunan SMK N 1 SUMBAR. Dimana nilai rxy adalah 0,499 dan koefisien determinasi (r2xy) adalah 0,249 dan thitung (3,771) > ttabel (1,677). Berdasarkan koefisien determinasi (r2xy) sebesar 0,249, artinya 24,9% praktik kerja industri siswa dipengaruhi oleh COVID-19, dan sisanya 75,1% dipengaruhi oleh faktor lain.
Perencanaan Pilar Hidran Kawasan Kelurahan Flamboyan Baru Kota Padang
Authors: Ashar Faisal , Hardi Satria Restu , Septiani Nazmi
Published: March 2024

Penelitian ini dilatar belakangi oleh kesiapsiagaan untuk bencana kebakaran pada kawasan padat penduduk. Perkotaan cendrung memiliki penduduk yang cukup tinggi dan susunan perumahan yang padat, sehingga memiliki jalan lintas yang relatif kecil. Perumahan yang padat akan menjadi masalah ketika terjadi kebakaran, karena tidak cukup akses mobil pemadam untuk masuk ke perumahan yang padat penduduk. Perencanaan yang dilakukan adalah membangun alat proteksi kebakaran aktif seperti hidran pilar pada kawasan padat penduduk, dengan bersumberkan air PDAM. Prosedur yang pertama dilakukan dalam penelitian ini adalah mengobservasi kawasan guna untuk menempatkan titik hidran yang akan direncanakan. Dalam simulasi distribusi air ke hidran disimulasikan dengan suatu program komputer yaitu epanet, yang melaksanakan simulasi hidraulik dan perilaku air dalam suatu jaringan pipa distribusi air minum. Perecanaan ini memiliki biaya yang terjangkau dengan sistem hidran yang mencukupi syarat yang telah ditentukan oleh peraturan menteri pekerjaan umum. Perencanaan ini dilakukan tanpa melakukan pembongkaran rumah masyarakat karena jalur pipa yang direncanakan tidak mengganggu atau berada pada rumah masyarakat di Kelurahan Flamboyan Baru.
Faktor Pengali Kuat Tekan Aktual terhadap Prediksi Kuat Tekan Hasil Hammer Test
Authors: Juliafad Eka , Ardilla Wilis , Putra Rusnardi Rahmat , Rani Iskandar G
Published: March 2024

Beton merupakan campuran agregat kasar dan halus, air serta semen atau bahan tambah lainnya. Dalam pelaksanaan pembuatan struktur beton masih banyak ditemukan permasalahan-permasalahan seperti pekerjaan yang tidak sesuai dengan mutu perencanaannya. Oleh karena itu perlu dilakukan pemeriksaan terhadap mutu beton apakah sudah sesuai dengan mutu yang direncanakan. Untuk mengetahui mutu beton dapat dilakukan dengan dua cara yaitu pengujian destruktif yang dilakukan dengan mesin uji tekan (Compression Testing Mechine) dan non destruktif dilakukan dengan hammer test. Tujuan dari penelitian ini untuk mendapat nilai factor pengali dari hasil uji hammer test sehingga diketahui  nilai kuat tekan aktual beton, selain untuk mengetahui perbandingan nilai kuat tekan hasil hammer test dan mesin tekan. Penelitian yang dilakukan menggunakan metode eksperimental dengan menggunakan 60 sampel kubus beton normal. Setelah dilakukan pengujian dapat disimpulkan bahwa terdapat perbedaan antara nilai kuat tekan kubus aktual dengan perkiraan kuat tekan hasil uji hammer test, dimana nilai kuat tekan aktual lebih besar 23,35% dibandingkan uji hammer test arah vertikal dan 37,68% pada arah horizontal. Faktor pengali kuat tekan aktual adalah 1,3 terhadap prediksi hammer test arah vertikal (900) dan 1,6 untuk arah horizontal (1800)
Mengklasifikasikan Tanah Lempung Menggunakan USCS
Authors: Candra Agata Iwan , Putri Yuzi Melia Adi , Wardani Onie , Zakiya Zaizafun , Safi’i Annas Dwi
Published: March 2024

Tanah lempung merupakan salah satu jenis tanah yang terdiri dari butiran yang sangat kecil dan berwarna coklat. Untuk mengetahui identitas tanah lempung sangat diperlukan pengujian agar dapat mengklasifikasikannya. Metode yang digunakan adalah metode USCS. Sampel tanah yang diambil berada di Desa Pojok, Kota Kediri. Pengujian tersebut berdasarkan uji Gradasi Ayakan, Liquid Limit, dan Plastis Limit. Dalam pengujian gradasi ayakan ditemukan koefisien keseragaman(Cu) sebesar 3 dan koefisien gradasi(Cc) sebesar 0,96. Pengujian batas cair menghasilkan kadar air 36,556% merupakan kriteria sedang. Batas plastis menghasilkan kadar air 24,15% merupakan kriteria sedang. Sedangkan pengujian indeks plastisitas menghasilkan 12,41%. Berdasarkan pengujian ini,  sampel tanah tergolong kelompok SP(POORLY GRADED SAND) yaitu kelompok gravel yang bergradasi baik dengan penggolongan Cu ˂6 dan 1 ˃Cc ˃3. Karakteristik agregat tanah lempung yang ada di Desa Pojok memiliki sifat fisik berwarna coklat, teksturnya halus dan lengket, menunjukkan sifat-sifat plastis dan juga memiliki sifat kohesi. Agregat tanah lempung yang ada di Desa Pojok ini pun sudah memenuhi spesifikasi untuk penyerapan air agregat kasar, penyerapan air agregat halus, keausan agregat kasar, dan agregat alamnya juga sudah memenuhi spesifikasi. Selain itu, manfaat dari pengujian untuk mengklasifikasikan jenis tanah ini dapat digunakan sebagai dasar untuk pengujian tanah selanjutnya.
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION TERHADAP PEMAHAMAN KONSEP MATEMATIS PESERTA DIDIK
Authors: Angryanof Natasya Putri
Published: March 2024

Concepts understanding of mathematical is one of learning mathematics purposes that have be possessed by students. Based on the results of tests conducted at SMA Negeri 2 Payakumbuh, it was found that concepts understanding of mathematical by students' was still low. The research purpose is to find out, analyze and describe the understanding of mathematical concepts of students who study with the TAI type by model of cooperative learning and compare with students who study to use the TAI type by model of cooperative learning is better than the concepts understanding of the mathematical by students in conventional classes. This research type is a quasi-experimental research design with Static Group Design. The research population in this research was class XI MIPA 1 – XI MIPA 8 of SMA Negeri 2 Payakumbuh. It can be concluded that the TAI type by model of cooperative learning has an influence on concepts understanding of the mathematical by students. Keywords – Cooperative, TAI, Mathematical concepts understanding
PENGARUH EFIKASI DIRI DAN KEMANDIRIAN BELAJAR PESERTA DIDIK SMP TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA
Authors: Vernelli Rizka Aulyani
Published: March 2024

The effect of Self-Efficacy and Learning Independence of SMP Negeri 25 Padang Students on Mathematics Problem Solving Ability. This study sains to determine the effects of self-efficacy and learning independence of students at SMP Negeri 25 Padang on Mathematical Problem Solving Ability. The research method used is a survey method with quantitative research. This research was conducted at SMP Negeri 25 Padang in class IX in the academic year 2022/2023. Samples were taken using a simple random sampling technique of 120 students. The instruments used are. questionnaires and tests. The data were analyzed first by data analysis test, namely normality test, linearity test, and multicollinearity test. After the data analysis test was met, then the research hypothesis was tested using simple regression analysis techniques. From the results of the study it was found that: (1) there was a significant influence between self-efficacy on mathematical problem-solving abilities; (2) there is a significant influence between. learning independence on mathematical problem solving abilities; (3) there is a significant influence between self-efficacy on learning independence.  Keywords – Self-Efficacy, Independent Learning, Problem Solving Ability
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE THINK TALK WRITE TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PESERTA DIDIK KELAS VIII
Authors: Tiffahani Syifa Fairus
Published: March 2024

Problem solving ability is one of the goals of mathematics learning. However, activities learning are not optimal in facilitating students to improve their problem-solving ability. The test result show that the problem-solving ability was still low. One solution to overcome this is Think Talk Write cooperative learning model. The purpose of this study was to determine the effect of the Think Talk Write cooperatif learning model on the mathematical problem-solving ability of the VIII. This type of research was a quasi-experiment design with a non-equivalent posttest only group design. The population was all students of class VIII. Sampling was done by random sampling of class VIII.3 as the experimental class and VIII.2 as the control class. The instrument of this research is in the form of a problem-solving ability test. Based on the result of data analysis obtained P-value  where P-value . It can be concluded that the problem-solving ability of students who study with the Think Talk Write cooperative learning model is better than students who learn with the direct learning model in class VIII SMPN 7 Padang. Keywords– Cooperative Learning, Direct Learning, Problem Solving Ability, Think Talk Write.
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION TERHADAP HASIL BELAJAR MATEMATIKA PESERTA DIDIK KELAS VIII
Authors: Okri Levira
Published: March 2024

In measuring the level of success of students in understanding the competences or the materials in learning mathematics using the learning outcomes. However, the outcomes of mathematics learning of 8th grader (VIII) students of SMPN 33 Padang are still relatively low. One thing that can be done to solve this challenge is to use a cooperative learning model with type of Student Teams Achievement Division (STAD) in the learning process. The research type used was a quasy experiment with a static group design. The class of research subjects determination was conducted using technique by simple random sampling and then class VIII-6 was chosen as the class for experimental and class VIII-4 as the class for control.The research results shown that the mathematics learning outcomes of students who are taught with model by cooperative learning using the STAD type are better than students who are taught with models by conventional learning. It show that the value in average for the class of experimental was 16,43 and the value in average for the class of control is 13,27. Keywords– Mathematics learning outcomes, Student Teams Achievement Divisio
PENGARUH PENDEKATAN REALISTIC MATHEMATICS EDUCATION TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS VIII SMP
Authors: Novia Silva
Published: March 2024

The ability to solve mathematical problems in learning is a basic thing that students should have. According to test results from SMPN 1 Hulu Kuantan, students had poor problem-solving abilities, receiving an average of 11.4% on each indicator. Students' mathematical problem-solving skills do not develop adequately due to a lack of active participation in the learning process and the approach used. Realistic mathematics education (RME) is a possible method of instruction. This study aims to assess and describe how well students learn to solve mathematical problems using the RME methodology, which is superior to learning through conventional methods. This kind of study uses a nonequivalent posttest-only control group design and a quasi-experimental methodology. The entire class of students in grade 8 at SMPN 1 Hulu Kuantan. According to the results of the data description and analysis, students at SMPN 1 Hulu Kuantan who study using the RME technique have more advanced mathematical problem-solving skills than students who learn using conventional methods.Keywords – RME, Mathematical Problem Solving
PENGARUH PENERAPAN MEDIA PEMBELAJARAN INTERAKTIF TERHADAP HASIL BELAJAR MATEMATIKA PESERTA DIDIK KELAS VIII SMP NEGERI 1 X KOTO SINGKARAK
Authors: Dillawati Siti Utami
Published: March 2024

Whether or not the learning objectives of mathematics are achieved can be determined from the outcomes of learning by students. Outcomes of learning are the results shown by students after participating in the process of learning. However, it is still found that the low outcomes of learning by students at SMP Negeri 1 X Koto Singkarak. The research purpose was to describe the outcomes of learning by students in mathematics who used interactive media for learning better than the outcomes of learning by students in mathematics who used learning in conventional. This study uses a type of quasi-experimental research with a non-equivalent post-test only with design of control group. The technique for sampling used technique by purposive sampling with the selected classes being class VIII A and VIII C. The research instrument used was a outcome of learning test in consist of questions in description. The data in research were analyzed using the t test. Through the analysis of data conducted with the t test, obtained a P-value of 0.002 or reject  because it is less than the real level α = 0.05. We got conclussion that the outcomes of learning by students in mathematics who use interactive media for learning are better than the outcomes of learning by students in mathematics who use learning in conventional. Keywords–Learning Outcomes, Interactive Learning Media, Linear Equations.
Об устройстве ручного управления подушками безопасности.
Authors: Юскаев Юрий
Published: March 2024

В данной статье предложено устройство ручного управления подушками безопасности на транспортных средствах. Показана простейшая схема и локализация на автомобильном руле кнопок управления. Предложены решения для защиты от случайного включения и приведены доказательства предположительной эффективности данного устройства. Данное устройство обладает довольно высокими перспективами внедрения на автомобильном транспорте. Особенно актуальны для установки и использования на автомобилях массового сегмента то есть наиболее доступными в экономическом смысле. Безусловно данное устройство нуждается в проведении НИОКР в применении с различными подушками безопасности как внутренними так и внешними. Показаны наиболее близкие прототипы и определенные отличия от наиболее ближайшего предположительно в лучшую сторону а именно удобства использования и быстродействия.
Current Situation and Problems of Regional Cooperation between China and the Five Central Asian Countries
Authors:   Shenyang Ligong University, Xueping Qu
Published: March 2024

The article analyzes the development of economic cooperation between China and the countries of the Central Asian region – Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan – at the present stage. It char-acterizes the main points of contact between these states, considers the key vectors of their interaction and identifies common problems accompanying this process. Necessity of joint efforts of the countries of the region and China to build the Silk Road Economic Belt as a project that opens wide opportunities for the development of the national economy of all participants highlighted. It is emphasized that the relevance of this study is condi-tioned by the global redistribution of political and, consequently, economic positions in the world, including Central Asia; it allows to determine the role and importance of each stakeholder in modern conditions and to forecast the development strategy of the region as a whole. Conclusion dwells upon the fact that cooperation at different levels and in various spheres (energy, “green” economy, transportation) is beneficial to all parties to the interaction under study and will contribute to both strengthening the economies of the CAR states, expand-ing the sphere of influence of the PRC, and mutual understanding of the countries of the region, ensuring their ability to withstand new external challenges.
The Impact of Renewable Energy Sources on Energy Security
Authors:   Russian State University for the Humanities, Khlopov Oleg A.
Published: March 2024

The article examines the content of energy security, which is an important basis for the state in implementing its energy policy. Advances in technology, climate change and environmental issues are leading to fundamental transformations in global politics and energy. Consumption tradition energy sources (oil and gas, coal) is grad-ually being replaced by renewable energy sources (RES). Today, as the calls are growing in many countries for an accelerated transition for widespread use of new energy sources, data shows that energy demand has been growing in recent years. This means that traditional energy sources are expected to maintain their dominant role over the next two decades. The author notes that the new energy transition is accompanied by the desire of hydrocarbon importers to reduce energy dependence on supplier countries, the desire of leading states to find new sources of economic growth, as well as a revision of the content of energy security in the context of in-creasing strategic competition.
Features of the Formation of Russian Statehood in the Far East: Ideological, Territorial and Political Aspects
Authors:   Financial University under the Government of the Russian Federation, Pechenkin Nikolai M.
Published: March 2024

This article examines the peculiarities of the formation of Russian statehood in the Far East in several direc-tions. First, it is important to study the ideological features of the development of the Russian state to the east and identify the main causes of this phenomenon. Secondly, it was expedient to outline the key territorial ap-proaches to the expansion of Russia and identify the main stages of settlement of the Far Eastern region. Third-ly, the author concludes that a significant role was played by the formation of political centralization of power in remote regions of the country. In addition, the factors determining the uniqueness of the development of state-hood in the Far East and its connection with national processes are analyzed. Thus, the work deepens the knowledge about the characteristic features of the development of new territories, taking into account ideologi-cal and political factors.
Theoretical and Methodological Foundations for Studying the Process of Perception of University Worldview Courses by Students (Using the Example of the Course “Fundamentals of Russian Statehood”)
Authors:   Financial University under the Government of the Russian Federation, Vilkova Anastasia A.
Published: March 2024

This research paper is devoted to the study of the theoretical and methodological foundations of the perception of university worldview courses by students on the example of the course “Fundamentals of Russian State-hood”. The paper examines the key theoretical approaches to the analysis of the perception process, the socio-psychological features of the formation of the worldview of students, as well as the main political and psycho-logical approaches to assessing and measuring this perception. Particular attention is paid to the political con-text and the role of knowledge in the construction of objective reality. It is assumed that the study of the course “Fundamentals of Russian Statehood” can contribute to the formation of students not only an understanding of the state system as a whole, but also the development of critical thinking, traditional value orientations and pat-riotic civic identity. The results of the study will be of practical importance for improving the educational process and stimulating an active civic position, taking into account the specific features of the youth audience.
1770-1790 Yılları Arasında Osmanlı Yelkenli Donanması ve Avrupa'daki Konumu
Authors: Depe Enes
Published: March 2024

Osmanlı donanması, 15. yüzyılın ikinci yarısından itibaren Akdeniz’in ve Avrupa’nın önde gelen donanmalarından biri olmuş ve 20. yüzyıla kadar bu durum devam etmiştir. Ancak Osmanlı donanmasının sayısal büyüklüğü hakkında sınırlı sayıda araştırma yapıldığından, bu donanmayı diğerleri ile doğru bir zeminde kıyaslamak çoğu dönem için mümkün olmamıştır.

Bu araştırmada, 1770-1790 yılları arasında Osmanlı donanmasının envanterine giren tüm yelkenli savaş gemilerinin tespiti üzerinden bir mukayese denemesine girişilmiştir. Beş yıllık periyotlar halinde Osmanlı donanmasının yıllara göre mevcudu ve gemi edinme potansiyeli açığa çıkarılmıştır. Detaylı şekilde bilinen Osmanlı gemileri, Avrupa donanmalarının yelkenli gemileri ile mukayese edilmiştir.

Cezayirli Gazi Hasan Paşa’nın kaptanıderyalık dönemi olan 1770-1790 yılları arası, aynı zamanda Osmanlı donanmasının bir değişim ve dönüşüm geçirdiği periyot olmuştur. Bu değişim ve dönüşüm donanma envanterine yansıdığı gibi, Osmanlı donanmasının kompozisyonu Avrupa donanmaları ile kıyaslanmıştır. Daha önce denenmemiş olan bu yöntem sayesinde, Osmanlı donanmasının Avrupa donanmaları arasındaki itibari konumunu tespit etmek de mümkün olabilmiştir.
Tejidos y ropas para pobres… entre Valladolid y Palencia durante el siglo XVIII
Authors: García Fernández Máximo
Published: March 2024

La indumentaria vestida por los sectores más menesterosos (la cultura material popular) contribuyen a explicar el proceso de la civilización a finales del Antiguo Régimen. Los Libros de entradas de enfermos y expósitos en los principales hospitales vallisoletanos y palentinos proporcionan rica información sobre los tejidos y ropas usados habitualmente por los pobres y niños allí ingresados.
De L’Europe nouvelle al europeísmo violeta: Louise Weiss y los orígenes del activismo feminista europeo
Authors: Tomasoni Matteo
Published: March 2024

Periodista, opinionista y voz influyente del panorama político internacional, Louise Weiss (1893-1983) es considerada una de las mujeres más representativas del siglo XX. Sus inicios se remontan a la colaboración con la prestigiosa revista “L’Europe nouvelle”, coincidiendo con las últimas fases del primer conflicto mundial. Desde 1920 trabajó asiduamente con la idea de impulsar la integración europea, favoreciendo el intercambio de ideas y el entendimiento entre las naciones. Firme defensora de la participación femenina en los asuntos políticos y diplomáticos, luchó para dar una mayor visibilidad a las mujeres, introduciendo su discurso feminista en las rubricas de la revista, así como en los actos públicos. A partir de 1934 fundó “La Femme nouvelle”, dando así continuidad a su idea de una Europa plural, igualitaria y feminista.
Una aproximación a la historia del GULAG (en su ominoso centenario, 1920-2020): reivindicación de Solzhenitsyn y otros represaliados por el poder soviético
Authors: Pérez Sánchez Guillermo A.
Published: March 2024

Desde 1917 la práctica del terror en la Rusia soviética fue la esencia del sistema totalitario comunista como lo atestigua, entre otras muchas maneras de proceder, el universo concentracionario –el GULAG- instaurado ya por Lenin (del que se cumple, año arriba año abajo, su ominoso centenario). Durante las primeras décadas de la Unión Soviética los represaliados fueron incontables. Después de la Segunda Guerra Mundial los campos de trabajo, reeducación y muerte que era el GULAG estaban en su apogeo repletos de víctimas de la represión. Fue en los años cuarenta cuando comenzaron las desventuras personales e intelectuales de Solzhenitsyn con las autoridades soviéticas: en julio de 1945 fue acusado -como tantos otros- de proferir críticas contra Stalin y por tal motivo fue arrestado y, seguidamente -también como tantos otros-, sin juicio previo, internado en un campo de concentración para penar ocho años de reclusión y trabajos forzados en Siberia. Esta experiencia personal -como a otros camaradas de cautiverio- influyó decisivamente en la obra literaria de Solzhenitsyn, en especial, Archipiélago Gulag. En 1953, cuando su cautiverio tocaba a su fin, sufrió una nueva condena de “destierro perpetuo”, aunque fuer ·rehabilitado” en 1957. No obstante, como les sucedió a otros muchos “compañeros de fatigas” de nuevo caería en desgracia a mediados de los años sesenta para no dejar de sufrir persecución por parte del poder soviético, aunque esta vez se pudo librar de purgar sus “culpas antisoviéticas” en el GULAG.
KEBIJAKAN LUAR NEGERI INDIA TERKAIT ISU PERBATASAN MELALUI PENANDATANGAN BORDER DEFENCE COOPERATION AGREEMENT DENGAN TIONGKOK TAHUN 2013
Authors: Sudirman Arfin , Djuyandi Yusa , Sinyal Yoni Yolanda
Published: March 2024

Artikel ini dilatarbelakangi oleh permasalahan perbatasan yang terjadi antara India dan Tiongkok, dimana permasalahan tersebut disebabkan oleh adanya perbedaan pandangan terkait letak dari garis perbatasan. Terdapat dua area yang menjadi letak dari sengketa, yaitu Aksai Chin di bagian barat dan Arunanchal Pradesh di bagian timur. Meskipun permasalahan masih terjadi, kedua negara sudah berusaha untuk melakukan tandatangan di beberapa perjanjian internasional tentang isu sengketa perbatasan ini. Selain itu, perjanjian terbaru yang ditandantangani kedua negara adalah Border Defence Cooperation Agreement (BDCA) di tahun 2013. Dengan menggunakan beberapa konsep Determinan Kebijakan Luar Negeri artikel ini menyimpulkan bahwasanya setiap konsep determinan tersebut memiliki variasi pengaruh bagi keputusan India untuk menandantangani BDCA, dikarenakan permasalahan perbatasan antara India dan Tiongkok belum bisa terselesaikan. Hal ini disebabkan mengingat di satu sisi, India masih berpegang teguh terhadap klaim yang ada di sepanjang perbatasan karena faktor keamanan. This article is motivated by border problems that occur between India and China, where these problems are caused by different views regarding the location of the border line. There are two areas where the dispute lies, namely Aksai Chin in the west and Arunanchal Pradesh in the east. Even though the problems still occur, the two countries have attempted to sign several international agreements on the issue of this border dispute. In addition, the latest agreement signed by the two countries is the Border Defense Cooperation Agreement (BDCA) in 2013. By using several concepts of Foreign Policy Determinants, this article concludes that each of these determinant concepts has various influences on India's decision to sign the BDCA, because border issues between India and China cannot be resolved. This is due to the fact that, on the one hand, India still adheres to claims along the border due to security factors.
La crisis de identidad de la educación física y el ámbito de la práctica educativa
Authors: Marengo Santiago Ezequiel
Published: March 2024

El objetivo del presente trabajo es analizar críticamente la aplicabilidad del diagnóstico de crisis de identidad de la educación física al ámbito de la práctica educativa. Para ello se toma por caso el diseño curricular de educación física para el nivel primario de la Provincia de Córdoba, Argentina, se identifican los marcos teóricos operantes en él y se evalúa si tal documento manifiestala mencionada crisis. El tratamiento pone de manifiesto variadas dificultades al intentar aplicar tal diagnostico a este caso en particular.
PREVALÊNCIA DE SOBREPESO E OBESIDADE EM ESCOLARES DAS REDES PÚBLICA E PRIVADA
Authors: Araújo Nayara Costa
Published: March 2024

O objetivo deste estudo foi avaliar a prevalência de sobrepeso e obesidade em escolares de sete a dez anos de duas escolas e verificar associação destes fatores como gênero, idade e tipo de escola. Trata-se de um estudo de corte transversal, prospectivo com alunos de ambos os sexos, entre sete e dez anos de idade, matriculados em escola pública e privada da cidade de Barra do Garças – MT. Foram incluídas 80 crianças, sendo 40 crianças da rede pública e 40 crianças da rede privada. Todas foram submetidas a avaliação do índice de massa corporal (IMC) usando a curva da Organização Mundial de Saúde de 2007 como referência. Pode-se observar que o IMC adequado e obesidade foram maiores na escola pública, contudo obteve-se maiores resultados de sobrepeso na escola privada, com elevados resultados no gênero masculino. Na somatória de sobrepeso e obesidade obteve-se 52,5% na escola pública e 60% na escola privada, evidenciando uma maior tendência ao aumento dessas variáveis para gênero o masculino das escolas privadas. Esses dados fundamentam a importância da implementação de programas de educação para a saúde por meio das aulas de Educação Física como mecanismo de prevenção à doença.
Comunicación sistémica entre sostenibilidad y derecho
Authors: Cardoso Neto Nicolau , Reis Clóvis , Weise Luiza Sens
Published: March 2024

La definición de Desarrollo Sostenible se amplía a lo largo del tiempo e incorpora nuevos matices a la reflexión sobre la forma en que la humanidad se relaciona con el medio ambiente. El movimiento incorpora diferentes dimensiones al concepto de Sostenibilidad, perspectiva que despierta el interés de diversas áreas del conocimiento, entre las que se incluye el Derecho. En este contexto, el presente trabajo busca establecer la relación sistémica entre Sostenibilidad y Derecho, a partir de Sachs (1993 y 2002), Capra y Luisi (2014), y Capra y Mattei (2018). La investigación se fundamenta en la creciente complejidad de la sociedad y en la relación de tal realidad con la cuestión medioambiental. La metodología de la investigación consiste en una revisión bibliográfica sobre el tema organizada a partir del método sistémico. La perspectiva desafía una visión de mundo que está intrínsecamente presente en la sociedad contemporánea y que dificulta la comprensión del problema y de sus soluciones. A su vez, el recorrido aquí propuesto amplía el concepto de Sostenibilidad, sitúa el papel del Derecho en el campo de debate y acerca el tema a la vida cotidiana.
Palabras Clave: Desarrollo sostenible; Sostenibilidad; Derecho; Comunicación sistémica; Ecología del derecho.
Existence analysis of solutions to the linear Schrödinger Kirchhoff Poisson equation based on interrupted finite elements
Authors: Chen Yafei , Ge Kangkang
Published: March 2024

In this paper, we firstly explore the existence of solutions to the following linear Schrödinger Kirchhoff Poisson equation with critical exponential growth on the full space □3 by using the discontinuous finite element (DG) as well as the principle of centralized compactness:

{

−

(

a
+
b

∫

□

3

|

∇
u

|

2

)

Δ
u
+
V

(
x
)

u
+
φ
u
-

1
2

u
Δ

(

u

2

)

=
K

(
x
)

u

p
−
2

u
,

x
∈

□

3

−
Δ
φ
=

u

2

,

x
∈

□

3

\left\{ {\matrix{{ - \left( {a + b\int_{{\square^3}} {{{\left| {\nabla u} \right|}^2}} } \right)\Delta u + V\left( x \right)u + \phi u - {1 \over 2}u\Delta \left( {{u^2}} \right) = K\left( x \right){u^{p - 2}}u,} & {x \in {\square^3}} \cr { - \Delta \phi = {u^2},} & {x \in {\square^3}} \cr } } \right.

, x ∈. Secondly, we make reasonable assumptions on the V, K , f functions of the equation, and use the principle of variational division to firstly obtain the corresponding energy generalization of this equation, and then we prove the corresponding generalizations of the equation satisfy the (C)
c
conditions. Finally, the existence of the solution of the equation is obtained by numerical simulation and then by using the Yamaji Lemma. The results show that the error of the finite element solution of the linear Schrödinger Kirchhoff Poisson equation in the spatial direction P1 reaches the optimal estimation under the L
2 -parameter in an intermittent finite element numerical simulation environment, i.e., it is proved that there exist at least 1 and 3 positive solutions to the problem. The paper achieves rich research results which are informative for the solution of this class of linear differential equations.
N6-methylation in the development, diagnosis, and treatment of gastric cancer
Authors: Wang Jiaxin , Zhao Guiping , Zhao Yan , Zhao Zheng , Yang Shuyue , Zhou Anni , Li Peng , Zhang Shutian
Published: March 2024

Gastric cancer (GC) ranks third among cancers in terms of mortality rate worldwide. A clear understanding of the mechanisms underlying the genesis and progression of GC will contribute to clinical decision making. N6-methyladenosine (m6A) is the most abundant among diverse mRNA modification types and regulates multiple facets of RNA metabolism. In recent years, emerging studies have shown that m6A modifications are involved in gastric carcinoma tumorigenesis and progression and can potentially be valuable new prospects for diagnosis and prognosis. This article reviews the recent progress regarding m6A in GC.
Factors associated with the delay in informed consent procedures of patients with ST-segment elevation myocardial infarction and its influence on door-to-balloon time: a nationwide retrospective cohort study
Authors: Maimaitiming Mailikezhati , Ma Junxiong , Dong Xuejie , Zhou Shuduo , Li Na , Zhang Zheng , Lu Shijuan , Chen Lianglong , Ma Likun , Yu Bo , Ma Yitong , Zhao Xingsheng , Zheng Zhaofen , Shi Hong , Zheng Zhijie , Jin Yinzi , Huo Yong
Published: March 2024

Background and Objectives

ST-segment elevation myocardial infarction (STEMI) is the deadliest and most time-sensitive acute cardiac event. However, failure to achieve timely informed consent is an important contributor to in-hospital delay in STEMI care in China. We investigated the factors associated with informed consent delay in patients with STEMI undergoing percutaneous coronary intervention (PCI) and the association between the delay and door-to-balloon time.

Methods

We conducted a nationally representative retrospective cohort study using patient data reported by hospital-based chest pain centers from 1 January 2016 to 31 December 2020. We applied generalized linear mixed models and negative binomial regression to estimate factors independently predicting informed consent delay time. Logistic regressions were fitted to investigate the association of the informed consent delay time and door-to-balloon time, adjusting for patient characteristics.

Results

In total, 257, 510 patients were enrolled in the analysis. Mean informed consent delay time was 22.4 min (SD = 24.0), accounting for 39.3% in door-to-balloon time. Older age (≥65 years) was significantly correlated with informed consent delay time (RR: 1.034, P = 0.001). Compared with ethnic Han patients, the minority (RR: 1.146, P < 0.001) had more likelihood to extend consent giving; compared with patients who were single, longer informed consent time was found in married patients (RR: 1.054, P = 0.006). Patients with intermittent chest pain (RR: 1.034, P = 0.011), and chest pain relief (RR: 1.085, P = 0.005) were more likely to delay informed consent. As for transfer modes, EMS (RR: 1.063, P < 0.001), transfer-in (RR: 1.820, P < 0.001), and in-hospital onset (RR: 1.099, P = 0.002) all had positive correlations with informed consent delay time compared to walk-in. Informed consent delay was significantly associated with prolonged door-to-balloon time (OR: 1.002, P < 0.001).

Conclusion

Informed consent delay is significantly associated with the door-to-balloon time which plays a crucial role in achieving better outcomes for patients with STEMI. It is essential to shorten the delay time by identifying and intervening modifiable factors that are associated with shortening the informed consent procedure in China and other countries.
Impacts of cryopreservation on phenotype and functionality of mononuclear cells in peripheral blood and ascites
Authors: Zhang Jie , Yin Zhongnan , Liang Zhaoyuan , Bai Yang , Zhang Ting , Yang Jianling , Li Xianlong , Xue Lixiang
Published: March 2024

Background

Mononuclear cells in peripheral blood and ascites are important clinical resources commonly used in translational and basic research. However, the impact of different cryopreservation durations and extra freeze-thaw cycles on the number and function of mononuclear cells is unknown.

Methods

Peripheral blood samples (n = 21) and ascites samples (n = 8) were collected from healthy volunteers and ovarian cancer patients. Mononuclear cells were isolated, frozen, and thawed at 6 and 12 months. The impact of cryopreservation on cell viability, the phenotype, and the activation and proliferation of T cells were analyzed by flow cytometry. Single-cell sequencing was applied to investigate the underlying mechanism.

Results

The cell number and viability of mononuclear cells in peripheral blood and ascites were significantly decreased after cryopreservation. The T lymphocytes, especially CD4+ T cells, were affected the most significantly. By contrast, monocytes, natural killer (NK) cells, natural killer T (NKT) cells, and B cells were more tolerant. Meanwhile, T cell proliferation and IL-2 secretion are significantly affected after long-term cryopreservation. Mechanistically, the cell death induced by elevated reactive oxygen species (ROS) was involved in the reduction of CD4+ T cells after cryopreservation.

Conclusions

Our data indicates that different subtypes of mononuclear cells exhibit different tolerance capacities upon cryopreservation. Thus, our research can provide evidence and support for individuals who are conducting experiments using frozen clinical patient-derived mononuclear cells, for basic research or clinical trials. In addition, extra caution is worthwhile when researchers compare immune cell functionality from peripheral blood or ascites across datasets obtained in different cryopreservation conditions.
Investigating the steel–cement interface in high-temperature, high-pressure carbon dioxide environments
Authors: Zhu Ge
Published: March 2024

This study investigates the impact of high-temperature, high-pressure carbon dioxide on the steel-cement interface, crucial in engineering structures and carbon capture storage systems. Experiments conducted on N80 steel and ordinary portland cement in synthetic aquifer brine revealed that CO2 exposure significantly exacerbates steel corrosion and cement degradation. The corrosion current density of steel increased to 1.2 μA/cm2 after six months in CO2, compared to 0.3 μA/cm2 in unexposed samples. Cement samples showed a marked decline in mechanical properties, with hardness reducing from 1.25 GPa (giga-Pascal) in control samples to 0.65 GPa after six months. The steel—cement interface integrity also diminished, as evidenced by a decrease in acoustic impedance from 45.0 M-Rayl to 34.0 M-Rayl over six months. These results emphasize the need for advanced materials and strategies to enhance the durability and safety of structures in CO2-rich environments.
Influence of mechanical activation on the behavior of green high-strength mortar including ceramic waste
Authors: Nasr Mohammed Salah , Salih Moslih Amer , Shubbar Ali , Falah Mayadah W. , Abadel Aref A.
Published: March 2024

Solid waste management is a significant environmental issue for countries because of the need for huge landfills. The ceramic tile waste powder (CWP) is one of the wastes. Conversely, cement production, the main ingredient in concrete, emits large quantities of greenhouse gases, a significant environmental concern. Therefore, substituting some of the cement in concrete with CWP is an issue that deserves investigation to reduce the environmental impact of both materials. Accordingly, this study aims to investigate the influence of the grinding time and proportion of CWP as a substitute for cement on the properties of high-strength mortar (HSM). Three grinding times (10, 15, and 20 minutes) and three replacement percentages (10%, 20%, and 30% by weight) for CWP were adopted for each time. Ten mixtures (including the reference mixture) were executed. The fresh (flow rate), mechanical (compressive strength) durability (ultrasonic pulse velocity, dynamic elastic modulus, water absorption, density, percentage of voids and electrical resistivity) and microstructural properties were examined. The life cycle assessment (LCA) was also addressed. The results showed that the mechanical activation had a pronounced effect on the durability properties (especially water absorption and percentage of voids) more than on the compressive strength. Generally, a sustainable HSM (with more than 70 MPa of compressive strength) can be produced in which 30% of the cement was replaced with CWP with almost comparable performance to the CWP-free mortar. Furthermore, LCA results showed that mortars containing 30% CWP ground for 15 mins (GT15CWP30) had the lowest GWP per MPa.