bluuebunny/crossref_metadata_2025 huggingface dataset:
Accumulated dumps and tailings of uranium mines in Kyrgyzstan and the possibilities of their utilization and reclamation
Authors: Воробьев А.Е. , Абдурахмонов Г.А.
Published: July 2024

Представлен стартап утилизации и рекультивации отвалов и хвостохранилищ урановых рудников Кыргызстана. Детально рассмотрены минеральные радиоактивные отходы урановой горнодобывающей промышленности как по их размещению по территории Кыргызстана, так и по геоморфологическому виду накопленной геомассы, объемам, радиоактивности и, в отдельных случаях, – по минералогическому составу. Показано, что неконтролируемое хранение в отвалах и хвостохранилищах радиоактивных минеральных отходов зачастую приводит к авариям, возникающим под влиянием природных факторов (размыв атмосферными осадками, прорыв селями и т. д.) или воздействием антропогенной деятельности (разбор ограждений, выпас скота), обусловливающим поступление и рассеяние отходов в окружающей среде. Предложены базовые технологии переработки радиоактивных минеральных отходов горнодобывающих предприятий.

A startup for utilization and reclamation of dumps and tailings of uranium mines in Kyrgyzstan is presented. Mineral radioactive wastes from the uranium mining industry of Kyrgyzstan are considered in detail, both in terms of their location on its territory, and in terms of the geomorphological type of accumulated geomass, volumes, its radioactivity and, in some cases, in terms of mineralogical composition. It has been shown that uncontrolled storage of radioactive mineral waste in dumps and tailings often leads to accidents arising under the influence of natural factors (erosion by atmospheric precipitation, mudflow breakthrough, etc.) or the impact of anthropogenic activities (dismantling of fences, grazing, etc.) causing the receipt and dispersal of waste in the environment. Basic technologies for processing radioactive mineral waste from mining enterprises are proposed.
Digitalisation - the Basis for Building an Agile Enterprise
Authors: Janáková Sujová Andrea , Lesníková Petra
Published: July 2024

Enterprise digitalisation and agility are two key concepts that can work together to contribute to an organisation's competitiveness. Enterprise digitalization as a process of transforming traditional business models and processes using digital technologies enables the implementation of agile principles. Enterprise agility as the ability to adapt quickly and efficiently to unpredictable changes in the environment is becoming an important competitive factor. The aim of the article is to reveal the interactions between digitalization and enterprise agility and to present the results of primary research in industrial enterprises of the Slovak Republic focused on the perception of the importance of digitalization in the context of agility. The results showed that digitalization is an important element of agility and an essential starting point in building an agile enterprise. Slovak industrial enterprises consider digitisation as an important help in coping with unexpected changes such as the coronacrisis, as a result of which digitisation has accelerated. However, the current adverse global circumstances mean that one third of enterprises have reduced or stopped digitisation altogether and the number of digitising enterprises has declined over three years. Digitisation can transform business models and create agile operating models.
Prediction of SMEs Bankruptcy at the Industry Level with Balance Sheets and Website Indicators
Authors: Crosato Lisa , Bottai Carlo , Liberati Caterina
Published: July 2024

This paper addresses the importance of industry-specific models for SMEs bankruptcy prediction, building on earlier research finding larger predictive accuracy and enhanced temporal stability. Using Italian data, we propose separate bankruptcy prediction models for a few industries based on balance sheet data and explore the predictive power of SMEs' website html code structure. Our findings suggest that website data can serve as a valid complementary source for bankruptcy prediction, with different performances across sectors. We observe a certain degree of sectoral heterogeneity in the importance of financial ratios, firm-specific characteristics, and website structure, calling for an industry-tailored approach in bankruptcy prediction models.
Economic forecasting with non-specific Google Trends sentiments: Insights from US Data
Authors: Schütze Florian , Diaf Sami
Published: July 2024

The influence of specific Google Trends search queries measuring various sentiments on economic performance and stock markets has been extensively documented and used for many purposes. This paper examines the predictive power of queries measuring non-specific sentiment on key macroeconomic variables when linked to a comprehensive sentiment dictionary. The analysis shows that non-specific sentiments do not improve the forecasting quality of the US economy as a whole, except for unemployment, which was found to be predictable for all sentiments. Consequently, the authors suggest that economic-related sentiments with carefully selected words should be used in Google Trends search queries to improve predictive performance. However, if a socio-cultural analysis is to be performed, non-specific sentiments would be suggested, as they can be predicted by the real economic time series of unemployment.
Análise da trabalhabilidade e resistência do concreto com adição de superplastificante
Authors: Negri Robison , Bosco André Felipe , Ferreira Denio Gilson , Raiser Lucas Schmitz
Published: July 2024

O concreto é o segundo material mais utilizado nas construções, ficando atrás apenas da água. Com o avanço tecnológico nas edificações se faz necessário o emprego de concretos com características aprimoradas. Dessa maneira, com o objetivo de melhorar o desempenho do concreto, os superplastificantes têm se mostrado um componente de extrema importância devido aos efeitos gerados no compósito. Estes aditivos permitem reduzir a quantidade de água da mistura, mantendo ou aumentando a sua consistência. Portanto, influenciam diretamente na relação água/cimento, que é o fator principal na determinação das propriedades do concreto endurecido. Sendo assim, o presente artigo, estuda a influência dos superplastificantes na trabalhabilidade e na resistência à compressão dos concretos convencionais, através da comparação de diferentes dosagens de aditivo. Para isso foram feitos quatro modelos experimentais, um sem aditivo e outros três com as seguintes dosagens: 0,20%, 0,40% e 1.20%, sendo mantido constante o traço. Para cada modelo foi aferido o abatimento por meio do ensaio de slump test e determinado sua resistência à compressão axial aos 14 e 28 dias. Diante dos resultados obtidos, notou-se um aumento elevado no abatimento do concreto e uma redução na resistência com a adição do aditivo, principalmente aos 14 dias.
Systematic Literature Review: Efektivitas Model Problem-Based Learning Kurikulum Merdeka pada Pembelajaran Ekonomi SMA
Authors: Amilusholihah Amilusholihah , Sobandi A. , Mulyani Heni , Sutarni Nani
Published: July 2024

Kurikulum merdeka merupakan suatu usaha untuk meningkatkan keterampilan abad ke 21 dalam bidang pendidikan. Relevan dengan kondisi saat ini, terdapat kebutuhan yang semakin mendesak akan keterampilan seperti literasi digital, kemampuan memecahan masalah, berkreativitas, dan berkolaborasi. Salah satu pendekatan yang dapat membantu siswa mengembangkan keterampilan tersebut adalah pendekatan problem-based learning (PBL). Penelitian ini bertujuan untuk mengeksplorasi dan menganalisis efektivitas model PBL dalam implementasi kurikulum merdeka pada pembelajaran ekonomi di tingkat Sekolah Menengah Atas (SMA). Penelitian ini menggunakan pendekatan penelitian Systematic Literature Review (SLR) dengan desain Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) yang melibatkan beberapa tahapan, seperti strategi pemilihan data, kriteria penelitian, dan ekstraksi data. Sumber data sekunder yang digunakan adalah database Google Scholar dan Garuda, untuk mencari literatur yang relevan antara tahun 2022 hingga 2024. Hasil penelitian menunjukkan bahwa PBL terbukti efektif dalam meningkatkan hasil belajar siswa, kemampuan berpikir kritis, minat belajar, dan keaktifan belajar siswa pada mata pelajaran ekonomi. Meskipun demikian, masih diperlukan penelitian lebih lanjut, terutama dalam mengukur pengaruh PBL terhadap kemampuan berkomunikasi dan berpikir kreatif siswa, yang merupakan keterampilan abad ke-21 yang relevan. Oleh karena itu, peneliti selanjutnya disarankan dapat melakukan analisis PBL dengan cakupan yang lebih komprehensif, guna mendapatkan hasil yang lebih akurat dan sesuai.
Integrasi Nilai-nilai TRINGA dalam Bimbingan Kelompok Teknik Sosiodrama untuk Mencegah Perilaku Microagressions Siswa SMP
Authors: Budiyono Alief Laili , Indreswari Henny , Eva Nur
Published: July 2024

Microagressions merupakan penghinaan kepada individu atau kelompok yang dilakukan secara verbal ataupun non verbal, yang disengaja atau tidak disengaja yang dapat menimbulkan dampak psikologis individu atau kelompok yang menjadi sasaran. Microagressions memiliki dampak pada kesehatan mental individu sehingga diperlukan upaya untuk mencega perilaku microagressions siswa. Sehingga penelitian ini bertujuan untuk: (1) mendeskripsikan faktor-faktor penyebab terjadinya perilaku microagressions siswa; (2) mengkonstruk nilai-nilai TRINGA dalam teknik sosiodrama untuk mencegah  perilaku microagressions siswa. Literature review menjadi metode penelitian yang digunakan dalam penelitian ini. Hasil penelitian menyebutkan bahwa terdapat enam faktor yang menyebabkan terjadinya perilaku microagressions siswa diantaranya faktor jenis kelamin, usia, daerah religius stereotype, asumsi inferioritas, asumsi non religious. Nilai-nilai TRINGA dapat digunakan konselor dalam memberikan layanan bimbingan kelompok teknik sosiodrama. Diharapkan peneliti selanjutnya dapat menguji keefektifan nilai-nilai TRINGA dalam bimbingan kelompok teknik sosiodrama untuk mencegah perilaku microagressions siswa SMP.
Upaya Guru PAI dalam Meningkatkan Kedisiplinan Belajar Peserta Didik melalui Reward dan Punishment di SMPN 1 Nguntoronadi
Authors: Ratnasari Habibah Indah , Mustofa Triono Ali
Published: July 2024

Penelitian ini memiliki tujuan untuk menganalisis upaya Guru PAI dalam meningkatkan kedisiplinan belajar peserta didik dengan menerapkan reward dan punishment di SMPN 1 Nguntoronadi. Kedisiplinan belajar adalah faktor penting yang berpengaruh pada kualitas pendidikan dan prestasi akademik peserta didik. Penggunaan metode penelitian ini yaitu kualitatif deskriptif melalui pendekatan kualitatif. Penelitian ini berlokasi di SMP N 1 Nguntoronadi. Teknik pengumpulan datanya dengan observasi, wawancara dan dokumentasi. Wawancara dilaksanakan bersama Guru PAI dan subjeknya ialah peserta didik kelas VII, VIII, dan IX. Teknik yang dipakai untuk menganalisis keabsahan data adalah triangulasi. Analisis data yang dipakai pada penelitian ini adalah reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitiannya berupa Guru PAI di SMPN 1 Nguntoronadi menerapkan berbagai bentuk reward, seperti pujian lisan, pemberian sertifikat penghargaan, dan hadiah kecil, untuk memotivasi peserta didik yang berperilaku disiplin dan prestasi belajar yang baik. Sementara itu, bentuk punishment yang digunakan meliputi teguran lisan, penugasan tambahan, dan pemberian sanksi tertentu yang tidak taat aturan atau tidak menunjukkan kedisiplinan dalam belajar. Penerapan reward dan punishment terbukti efektif dalam mengoptimalkan sikap disiplin belajar peserta didik. Mereka lebih termotivasi untuk mengikuti aturan dan berpartisipasi aktif dalam proses pembelajaran. Guru juga melaporkan adanya peningkatan dalam keterlibatan peserta didik dan penurunan jumlah pelanggaran disiplin setelah implementasi upaya ini. Namun, penelitian ini juga mengidentifikasi beberapa tantangan, seperti perlunya konsistensi dalam penerapan reward dan punishment dan pentingnya pendekatan yang adil dan proporsional. Secara keseluruhan, upaya Guru PAI melalui reward dan punishment memberikan kontribusi positif terhadap peningkatan kedisiplinan belajar peserta didik di SMPN 1 Nguntoronadi.
Dinamika Penerapan Kurikulum Merdeka di Sekolah Dasar: Tinjauan Literatur Sistematis
Authors: Kurniawan Bayu , Rahmawati Fitri Puji , Ghufron Anik
Published: July 2024

Kurikulum Merdeka yang diterapkan pemerintah sejak tahun 2022 bertujuan untuk memberikan kesempatan kepada sekolah untuk melakukan kegiatan pembelajaran sesuai dengan potensi dan keunggulan mereka.  Penelitian ini menawarkan kontribusi baru dengan pendekatan sistematis dalam meninjau berbagai studi terkait implementasi Kurikulum Merdeka di sekolah dasar serta memungkinkan identifikasi praktik terbaik dan strategi yang efektif, yang dapat diterapkan di berbagai konteks. Penelitian ini merupakan sebuah systematic literature review, yang bertujuan untuk meninjau secara komprehensif dan kritis penelitian yang ada terkait implementasi Kurikulum Merdeka di sekolah dasar di Indonesia. Artikel yang digunakan adalah periode publikasi terbaru 2022-2024. Masalah umum yang sering muncul dalam penerapan Kurikulum Merdeka: (1) Guru belum paham secara menyeluruh mengenai Kurikulum Merdeka; (2) Kurangnya kompetensi guru dalam mengajar, dan; (3) Kurangnya dukungan sarana dan prasaran untuk proses pembelajaran guru. Solusi yang ditawarkan dapat disimpulkan sebagai berikut: (1) Guru bisa mengikuti pelatihan atau workshop untuk bisa memahami penerapan Kurikulum Merdeka dan mengembangkan metode, model, dan strategi pembelajaran; (2) Kolaborasi antar guru baik secara personal ke personal atau dalam forum Kelompok Kerja Guru atau melalui organisasi profesi guru; (3) Koordinasi semua stake holder dalam sosialisasi pelaksanaan dan evaluasi Kurikulum Merdeka; (4) Pelibatan guru dalam pengembangan kurikulum, dan; (5) Peran aktif stake holder dan orang tua murid dalam penyediaan sarana dan prasarana.
Pengaruh Model Pembelajaran Teams Games Tournament Terhadap Keaktifan Belajar IPAS Pada Siswa Kelas IV
Authors: Utami Tri Muthiah , Rahmiati Rahmiati
Published: July 2024

Guru memainkan peran penting dalam memfasilitasi pengalaman belajar berkualitas tinggi bagi siswanya dengan mempraktikkan pembelajaran. Dalam hal ini, pendidik mempunyai kewajiban yang sangat besar dalam memberikan ruang diskusi kepada siswa agar lebih memperhatikan perkembangan informasi dengan model Teams Games Tournament (TGT). Tujuan pada penelitian ini yakni guna melihat apakah model pembelajaran tersebut berpengaruh terhadap pembelajaran IPAS. Eksplorasi ini menggunakan semi trial dengan rencana penggunaan tes setelah perlakuan. Ada dua kelompok sampel yang dipergunakan dalam penelitian ini: kelompok kontrol yang terdiri dari 22 siswa kelas IV A dan kelompok eksperimen yang berjumlah 21 orang siswa dari kelas IV B. Kuesioner dipergunakan dalam penelitian ini untuk mengumpulkan informasi. Metode pearson product moment digunakan untuk uji validitas. Keandalan informasi dinilai menggunakan persamaan Alpha Cronbach. Pada uji normalitas digunakan rumus Liliefors dan didapatkan data berdistribusi normal dengan nilai signifikansi kelas eksperimen sebesar 0.102, sementara kelas kontrol 0.083. Dengan tingkat signifikansi 0.850 ˃ 0.05, uji homogenitas dengan rumus Fisher menunjukkan bahwasannya data bersumber dari populasi yang sama. Perhitungan uji hipotesis menghasilkan tingkat signifikansi sebesar 0.045. Penelitian menemukan bahwa siswa kelas IV SDN Jatiwaringin II Bekasi lebih aktif dalam pembelajaran mata pelajaran IPAS ketika mempergunakan model pembelajaran TGT.
Pengaruh Media Audio Visual terhadap Hasil Belajar PKn Siswa Kelas III SDN Kelapa Dua Wetan 02 Ciracas
Authors: Yusria Sarah , Kasriman Kasriman
Published: July 2024

Penelitian ini bertujuan untuk mengetahui dampak penggunaan media audiovisual (video) terhadap hasil belajar pendidikan kewarganegaraan siswa. Penelitian dilakukan di SDN Kelapa Dua Wetan 02 Ciracas pada semester kedua tahun ajaran 2023/2024. Dengan menggunakan metodologi quasi eksperimen, penelitian ini menggunakan pendekatan penelitian kuantitatif. Media audiovisual sendiri dijadikan sebagai variabel bebas (x), sedangkan hasil pendidikan kewarganegaraan dijadikan sebagai variabel terikat (y). Sampel penelitian ini adalah siswa kelas 3 yang mencakup kelompok eksperimen dan kelompok kontrol. Pendekatan sampel yang dikenal sebagai purposive sampling digunakan. Metode pengumpulan data menggunakan pendekatan tes dan dokumentasi. Lembar tes berfungsi sebagai alat penelitian. Metode analisis data meliputi statistik deskriptif dan inferensial, yang meliputi uji homogenitas, uji hipotesis, dan normalitas. Sig = 0,00 dan t = 5,277 merupakan hasil uji t independen. Hasil penelitian menunjukkan bahwa (2) kegiatan pembelajaran dengan menggunakan media audio visual (video pembelajaran) berjalan lancar dan (3) penggunaan media audio visual berpengaruh terhadap hasil belajar PKn.
Pengaruh Model Pembelajaran Probing Prompting dan Kemandirian Belajar terhadap Kemampuan Pemecahan Masalah Matematis Siswa
Authors: Lusiani Lusiani , Utami Citra , Mariyam Mariyam
Published: July 2024

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Probing Prompting terhadap kemampuan pemecahan masalah matematis siswa dan untuk mengetahui pengaruh kemandirian belajar terhadap kemampuan pemecahan masalah matematis siswa. Penelitian ini dilaksanakan di SMP Negeri 20 Singkawang pada semester genap tahun ajaran 2022/2023. Populasi penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 20 Singkawang. Teknik pengambilan  sampel menggunakan teknik purposive sampling. Adapun sampel dalam penelitian ini adalah siswa kelas VIII A yang berjumlah 23 siswa dan VIII C yang berjumlah 23 siswa. Jenis dan desain penelitian yang digunakan adalah penelitian kuantitatif dengan bentuk desain Quasi Experimental pada bentuk The Nonequivalent Posttest Only Control Group Design. Instrumen dalam penelitian ini adalah soal posttest kemampuan pemecahan masalah matematis siswa dan angket kemandirian belajar siswa. Teknik analisis data dalam penelitian ini adalah uji normalitas, uji homogenitas, uji t, Effect Size, uji lienaritas, uji keberartian regresi, analisis regresi sederhana, uji t. Berdasarkan analisis data diperoleh hasil penelitian bahwa: 1) terdapat pengaruh model pembelajaran Probing Prompting terhadap kemampuan pemecahan masalah matematis siswa dengan nilai Effect Size sebesar 1,01 artinya model pembelajaran Probing Prompting memberikan pengaruh yang besar terhadap kemampuan pemecahan masalah matematis siswa, 2) terdapat pengaruh kemandirian belajar terhadap kemampuan pemecahan masalah matematis siswa dengan nilai koefisien determinasi sebesar 56,88%.
Implementasi Graf Kompatibel dalam mengurai Kemacetan dI Persimpangan terparah dI Pekanbaru
Authors: Sarbaini Sarbaini , Saputri Windylia
Published: July 2024

Terdapat satu simpang dengan kepadatan lalu lintas tinggi di Kota Pekanbaru yaitu simpang Jalan Garuda Sakti-Kubang. Manajemen lalu lintas diperlukan untuk mengurangi kemacetan, hal ini juga menjadi tujuan  penelitian ini. Salah satu teknik yang dapat digunakan adalah Graf Kompatibel dan metode Webster. Graf kompatibel terdiri dari dua himpunan sisi yang menunjukkan objek yang akan diatur dan pasangan objek yang kompatibel (sesuai). Penelitian ini menggunakan data primer yang menjadi objek penelitiannya ialah banyaknya kendaraan dan jumlah lajur di persimpangan Jalan Garuda Sakti-Kubang. Dengan penggunaan teori graf kompatibel didapat hasil durasi lampu lalu lintas yang optimal, yaitu untuk Jalan Garuda Sakti (utara), lampu merah berdurasi 48 detik, lampu kuning berdurasi 3 detik, lampu hijau berdurasi 11 detik, untuk Jalan Raya Pekan (timur), lampu merah berdurasi 48 detik, lampu kuning berdurasi 3 detik, lampu hijau berdurasi 11 detik, untuk Jalan Kubang Raya (selatan), lampu merah berdurasi 45 detik, lampu kuning berdurasi 3 detik, lampu hijau berdurasi 14 detik, terakhir untuk Jalan Raya Pekanbaru-Sungai Pagar (barat), lampu merah berdurasi 33 detik, lampu kuning berdurasi 3 detik, lampu hijau berdurasi 26 detik.
THRIVING IN SINGLEHOOD: COMPARING THE SUBJECTIVE WELL-BEING BETWEEN MALE AND FEMALE
Authors: Yan Chong Hoi , Mohd Hashim Intan Hashimah , Kamarul bahran Farhana
Published: July 2024

This study aims to measure the level of subjective well-being (SWB) among emerging adults who are single and examine if there is any difference relating to gender. A total of 199 emerging adults participated in an online survey that assessed subjective well-being (using Satisfaction with Life Scale and Positive Affect and Negative Affect Schedule). The current study reveals a prevalent high level of life satisfaction among the majority of emerging adults in this study (76.88%), and a relatively balanced distribution on positive affect (52.26%) and negative affect (54.77%). Results of a t-test revealed that males scored higher than females on positive affect dimension. However, no significant difference was found between male and female in term of life satisfaction and negative affect dimensions in SWB. These findings provide a deeper insight into the SWB of emerging adults who are single by looking at SWB across the three dimensions. Gender-related source of stress may extend into emerging adulthood for females, thus explaining the lower positive affect compared to males. Despite the emphasis on romantic engagement in the Emerging Adulthood Theory, the study highlights that emerging adults who are single can still thrive. These findings have implications for societal perceptions of singlehood in Malaysia and warrant the need for future research to understand the well-being of individuals within the context of emerging adulthood in the country.
Advanced AI Solutions for Securities Trading: Building Scalable and Optimized Systems for Global Financial Markets
Authors: Abdullah Akinde , Omolola Hassan , Taiwo Samuel , Aderibigbe Oluwadare
Published: July 2024

Integrating Artificial Intelligence (AI) into securities trading software has revolutionized the financial markets by enhancing scalability, efficiency, and optimization. This paper explores the historical evolution and advancements in AI-driven trading systems, emphasizing their impact on global financial markets. The study investigates how machine learning, deep learning, and other AI technologies enable sophisticated trading strategies, improve market liquidity, and reduce transaction costs. It also addresses the challenges AI integration poses, including decision-making opacity, bias, increased market volatility, and data privacy concerns. The paper argues for the need for scalable architectures, optimization algorithms, and transparent governance to mitigate these issues. Additionally, human oversight remains crucial for evaluating AI outputs and maintaining accountability. This research aims to provide a comprehensive analysis of advanced AI systems in securities trading, highlighting their potential to enhance market efficiency and stability.
Analysis on the Implementation Effect of Promoting Active Learning with Project-Based Learning
Authors: Ying Zhan
Published: July 2024

Background Given today's information deluge and the swift strides in artificial intelligence, foundational knowledge is readily accessible online. The willingness to take the initiative to learn is obviously more important. At present, project-based learning is widely promoted in the world, and China is no exception, and since 2016, Zhejiang, China, has promoted STEAM education as a promotion curriculum integration. An important starting point for transforming the way you learn. Although project-based learning is widely carried out, there is a lack of quantitative research on the effective organization and implementation of project-based learning and the corresponding learning effects.Educators build and provide learners with supportive learning resources and tailor guiding issues of project-based learning to provide a path to transition from traditional direct teaching to a project-based active learning approach that encourages students to be proactive and seek resources as needed. Objectives This study will use the database design curriculum as an example to implement project-based learning, build project-based learning elements, and record students' learning activity data in project-based learning activities, which has 45 students in a junior college in Zhejiang in 2023. Methods The study collected data from learning platforms that included various supportive learning resources, including the number of online discussions, the number of tasks completed, video watch time data, chapter learning repetition, the distribution and trend of chapter learning time, teacher surveys, and face-to-face discussions and offline unsupervised learning. Results and Conclusions This lab takes database project-based learning as an example and evaluates whether learners can gain real-world practical experience in new learning methods. The analysis of project-based learning outcomes shows that the project-based active learning method enhances students' awareness of the importance of database design, cultivates enthusiasm, and promotes active learning in learning, better cultivate students who can navigate beyond basic knowledge points to embrace multidimensional inventive learning. Experimental data shows that strong positive correlation between high-quality project-based learning and student enthusiasm.
Detección y Cuantificación de Microplásticos en el Sistema de Agua Potable de la ciudad del Cusco
Authors: Lara  Díaz del Olmo Zulma , Mostajo Zavaleta Martha , Ochoa Cámara María Luisa
Published: July 2024

Se detectó y cuantifico microplásticos en aguas de la laguna de Piuray , que abastece a la planta de Santa Ana, donde se realiza el tratamiento de agua, para consumo de la población Cusqueña, así como en agua  de grifos domiciliarios del centro poblado de Chinchero. El sedimento de las muestras de agua se sometió a digestión oxidativa, para extraer los microplásticos, se utilizó peróxido de hidrogeno al 20 %. (Nuelle et. al., 2014), permitiendo así la separación de los plásticos por flotación y separación del sobrenadante (Thonson et. al.2004).), el volumen final de cada muestra fue filtrado. La mayor cantidad de microplásticos se detectó en la muestra de agua proveniente de la Caseta de Guardianía - Zona Piuray, ( un promedio 164 microplasticos / campo), de los cuales el 94 % de micro plástico corresponde a la tipología de fragmento, y el 6 %  de fibra, de acuerdo al análisis  de Espectroscopia infrarroja – transformada de Fourier se ha encontrado  polietileno de baja densidad y polipropileno. En la zona de Pongobamba  a 50 ms de la orilla se ha encontrado la menor cantidad de microplásticos, 14/ campo, de los cuales el 71.4 %  corresponde a la tipología de  fibra y el 29 % a la de fragmento.  En las muestras de agua de la laguna de Piuray se ha encontrado 76 % de microplásticos con tipología de fragmento y 24 % de fibra. No se detectó micro plásticos en agua de grifo de viviendas del centro poblado de Chinchero
Marcadores moleculares RFLP-rRNA 23S para la identificación de especies del género Bacillus.
Authors: Quispe-Ricalde María Antonieta , Elorrieta Mamani Paola , Sierra Herrera José Luis
Published: July 2024

El género Bacillus es un género taxonómico y filogenéticamente complejo, y para definir la pertenencia a este género se necesita la secuencia del gen rRNA 16S y la capacidad de formar esporas en condiciones aeróbicas; sin embargo, estos datos no son suficientes por lo que se han descrito varios marcadores genéticos los que actualmente son utilizados. En el presente trabajo se realiza una búsqueda de sitios de restricción en secuencias del gen rRNA 23S de 31 cepas de distintas especies del género y que han sido obtenidas del banco de datos del NCBI, lo cual permite definir patrones de corte para cada enzima. Paralelamente se amplifica el gen rRNA 23S seguido de RFLA de 8 cepas del género Bacillus, obteniendo el patrón de corte de cada cepa. Con la metodología planteada se puede hacer una aproximación a la separación en grupos de especies dentro del género Bacillus. La identificación de marcadores moleculares incrementa los datos necesarios para continuar con la formación de subgrupos dentro del género, o la definición de la pertenencia al género Bacillus.
Presencia ocasional del tordo renegrido (Molothrus bonariensis) en el campus de la Universidad Nacional de San Antonio Abad del Cusco, Perú
Authors: Venero–Gonzales José
Published: July 2024

En enero de 2022, muy cerca de la Ciudad Universitaria de Perayoc, se informaba por las redes sociales la presencia del ictérido Molothrus bonariensis (Gmelin, 1789), cuya distribución normal no incluye la Región Cusco, ni mucho menos la ciudad capital, y desde el día siguiente registramos al individuo entre el “Jardín Zoológico” y la Estación Meteorológica de la Universidad Nacional San Antonio de Abad del Cusco (UNSAAC), habiendo permanecido en el ámbito, un total de 55 días, por lo que este resulta ser el registro a mayor altitud, de la especie hasta la fecha, así como que se trata de su presencia en condición de ocasional. En este trabajo, también se analiza el papel que cumplen los espacios verdes en favor de los humanos y las aves, siendo de resaltar que su mantenimiento y/o las plantaciones en base a especies forestales nativas, que repercuten positivamente como beneficio público y también brindando ámbitos propicios para investigaciones continuadas.
Efecto tóxico de cafeína, dicromato de potasio y metomilo en la germinación de Vicia faba
Authors: Jordán Quispe Karen , Muñiz Duran Julia
Published: July 2024

La presente investigación, tuvo por objetivo evaluar efetos tóxicos y genotóxico en la germinación de Vicia faba a través de pruebas toxicológicas (bioensayos) en el crecimiento del sistema radicular y del coleóptilo para medir toxicidad germinativa y el ensayo de micronúcleos para determinar la genotoxicidad a nivel del material genético, para tal fin los compuestos tóxicos seleccionados fueron, metomilo, dicromato de potasio y como control positivo la cafeína, compuestos de uso frecuente en la agricultura e industria textil, actividades propias de las zonas andinas en Perú. Las concentraciones fueron determinadas a través de un aprueba piloto 500, 1000, 2000, 4000 y 8000 ppm, los datos obtenidos permitieron determinar la CL50 mediante el programa EPA PROBIT-1,5. Para la elongación del sistema radicular y coleóptilo se consideró la relación dosis–efecto en la germinación a las diferentes concentraciones establecidas y para la genotoxicidad se observó la presencia o ausencia de micronúcleos, obteniéndose una CL50 en cafeína, dicromato de potasio, metomilo de 2172, 8 ppm,   3286,9 ppm y 5174, 6 ppm respectivamente. En cuanto a la genotoxicidad el recuento de micronúcleos realizado en las radículas de Vicia faba determinó una prevalencia porcentual entre 3 % y 9.75 % en las tres primeras concentraciones 1000, 2000 y 4000 ppm, a 8000 ppm las células presentaron lisis. Por lo tanto, los resultados obtenidos evidenciaron efectos tóxicos y genotóxicos en Vicia faba causado por metomilo, dicromato de potasio y cafeína.
Factores de crecimiento epidermal e insulínico en fluido folicular ovárico de la alpaca
Authors: Bravo Walter , Mamani Duriel
Published: July 2024

Las concentraciones del factor de crecimiento epidermal (EGF) y factor de crecimiento insulínico (IGF-I) fueron determinados enfolículos ovarios de alpacas durante diferentes fases de su desarrollo. Dieciséis alpacas hembras fueron ecografiadas para determinar pequeños folículos (4-5 mm), folículos ovulatorios (7-10 mm), y folículos en regresión (12-6 mm). Cinco alpacas de cada grupo fueron sacrificadas para colectar el fluido folicular. Las muestras fueron congeladas a -20 °C hasta su análisis por elmétodo ELISA. La concentración de EGF fue diferente (P<0.05) siendo 3.9, 3.7 y 0.9 pg/mL para pequeños, ovulatorios y enregresión, respectivamente. La concentración de IGF fue similar para los trestamaños de folículos ováricos, siendo 1.3, 1.3 y 1.5 ng/mL para folículos pequeños, ovulatorios y en regresión. En conclusión, EGF varió de acuerdo al tamaño folicular, no así IGFque no varió de acuerdo con el tamaño folicular ovárico
Ecological assessment of cenopopulations of red-listed plants of the museum-reserve "Tsaritsyno"
Authors: Rezakina Arina ,   Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Tikhonova Mariya , Buzylev Aleksey
Published: July 2024

The article presents the ecological assessment of cenopopulations of red-listed plants of the State Historical-Architectural, Art and Landscape Museum-Reserve "Tsaritsyno". The research is aimed at analyzing the state and dynamics of populations of rare plant species included in the Red Book of Moscow on the territory of the unique natural complex. Methods of field research, mapping and ecological monitoring of biodiversity were used in the work. Special attention is paid to the study of factors affecting the conservation and reproduction of cenopopulations, including anthropogenic impact. The results of the work can be used to develop strategies for the protection and restoration of rare plant species, as well as to raise environmental awareness and public involvement in the problems of biodiversity conservation. Keywords: BIODIVERSITY, BIODIVERSITY INDICES, PROTECTED AREAS, URBAN PARK
Assessment of the ecological and agrochemical resistance of gray forest soil to the effects of pollution and potato yield when applying fertilizers
Authors: Ushakov Roman ,   Ryazan State Agrotechnological University named after P.A. Kostychev, Pityurina Irina , Vinogradov Dmitry , Zubkova Tatyana ,   Academy of the Federal Penitentiary Service of Russia,   Ryazan state agrotechnological University,   Lipetsk State University named after I.A. Bunin
Published: July 2024

The article presents studies in potato agrocenoses and an assessment of the gray forest soil of the Ryazan region using various levels of mineral and organomineral nutrition. It was found that to achieve an average level of stability, the buffering value of agro-gray soil should not be lower, according to the adsorption isotherm at a concentration point of 10 mM/l, 2 l/kg for zinc, copper, cadmium and lead. Exceeding the PBSgm value of 2-4 l/kg means a transition to a high level of stability. In the experiment on potato yield, the maximum yield was obtained on the variant with the action of an organomineral fertilizer system – 283.7 c/ha, which is 114.5 c/ha more than on the control variant (without fertilizers). We note the high yield obtained according to the variant with the action of the organomineral fertilizer system (248.2 c/ha, + 79.0 c/ha), which indicates the high efficiency of nutrition in the potato agrocenosis. Keywords: SOIL, POTATOES, NON-CHERNOZEM ZONE, POTATOES, YIELD, FERTILIZER
CONTROL OF ENGINEERING GEODETIC WORKS DURING THE RECONSTRUCTION OF THE TERRITORY OF THE HIGHWAY
Authors: Aubakirova T.A. ,   Al-Farabi Kazakh National University, Myrzakasymova Z.Z. , Pentaev T.P. , Zhanakova R.K. ,   Al-Farabi Kazakh National University,   Al-Farabi Kazakh National University,   L.B. Goncharova Kazakh Automobile and Road Institute
Published: July 2024

The article now considers the issues of the necessity to increase the bearing capacity of weak road spoil bases in a number of cases during overhaul or reconstruction of highways. Reconstruction of highways is an important process that allows modernizing and improving the existing infrastructure. This is necessary to ensure the safety and comfort of road traffic. This problem is particularly relevant when it is necessary to increase the capitalization of road surfaces, which is usually associated with increased stiffness and, therefore, sensitivity to deformable earth bed in general. In general, this study considers engineering-geodetic works during the reconstruction of the highway of republican significance "Kalbatau-Maikapshagai". Stages, sections of engineering geodetic works were carried out, deformation analysis works were carried out. The obtained results were analyzed, proposals for other measuring works were excluded, the possibility of forecasting on these proposals was considered. The overall objective is to encompass various activities aimed at improving the safety, passability and comfort of the road. Reconstruction of an area is carried out due to deterioration of the road surface, outdated infrastructure, non-compliance of the road with modern safety and traffic requirements and changing needs and volumes of traffic flow. Reconstruction of highways is an integral part of their maintenance and development. It is necessary to ensure the safety and comfort of road users, as well as to support and improve the transportation infrastructure. In the article reconstruction stages of planning, financing and technical implementation are an important step in infrastructure development.
THE SPATIAL DEVELOPMENT OF THE KHOJA AHMED YASAWI COMPLEX IN TURKESTAN FEATURES
Authors: Kuspangaliyev B.U. ,   Satbayev University, Samoilov K.I. , O.N. Priemets  ,   Satbayev University,   International Educational Corporation
Published: July 2024

The problem of preservation and optimal demonstration of architectural monuments to local residents and tourists is of constant scientific and public interest. An interesting example of such a monument is the mausoleum-khanaka of Khoja Ahmed Yasawi in Turkestan, which remained unfinished. Studies of this building have been conducted for more than one century. However, not all new materials take into account some aspects disclosed in previous years. For example, studies of foundations and walls conducted in the 1950’s suggested that during the main period of construction in the fourteenth century, only the completion of the complex was carried out, and not the construction of a completely new building. However, despite the publications confirming it, including those of the 2010s, the version of new construction on the site of the purposefully completely destroyed original complex is still widespread. Based on the authors' research, which was conducted in late 2022, the assumption of reconstruction and rebuilding of the mausoleum-khanaka complex of the XIV century project was confirmed. An assumption is also made about the shape of the main dome and portal, which remained unfinished. Taking into account the importance of the mausoleum-khanaka of Khoja Ahmed Yassawi for self-determination of the culture of modern Kazakhstan, it seems appropriate to consider the evolution of the complex and the prospects of its development, which is done in the proposed article.
Investigación en encinares mexicanos sujetos a instrumentos de políticas públicas de conservación y uso
Authors: Rosaliano-Evaristo Rubén , Ávila-Akerberg Víctor , Gómez-Demetrio William , Sotelo-Núñez Esthela I.
Published: July 2024

Introducción. El deterioro de los ecosistemas forestales ha impulsado la adopción de mecanismos para su conservación y uso sostenible.
Objetivo: Identificar el estado del conocimiento en torno a los bosques de encino en México, asociados a mecanismos de políticas públicas de conservación y uso: Áreas Naturales Protegidas (ANP), Pago por Servicios Ambientales (PSA) y Manejo Forestal Comunitario (MFC).
Material y métodos: Se utilizó el marco metodológico de búsqueda, evaluación, síntesis y análisis. La información se obtuvo en las plataformas de Scopus, Scielo y Redalyc. Los documentos encontrados se sometieron a un proceso de inclusión y exclusión de acuerdo con criterios de temporalidad y fuentes primarias.
Resultados y discusión: Se identificaron 662 investigaciones de las que se analizaron 37 publicadas en el periodo 2000-2022. De estas, 17 se relacionan con el MFC y estudian características de las comunidades forestales y efectos socioecológicos; 13 abordaron temáticas relacionadas con ANP, enfocadas en biología de la conservación de flora y fauna; y dos contribuciones se centraron en el PSA, las cuales destacan los análisis y evaluación de los efectos socioambientales. Por último, cinco investigaciones involucran a dos y tres de los instrumentos mencionados. Conclusiones: El  análisis  de  los  bosques  de  encino  en  relación  con  políticas  públicas  de  conservación  y aprovechamiento ha experimentado notable aumento. Los estudios indican que este tipo de políticas contribuyen a reducir el riesgo de cambios adversos en estos bosques. Debido a la importancia ecológica, social y económica de los encinares, se sugiere abordar su comprensión desde perspectivas como el enfoque de los sistemas
socioecológicos y la transdisciplina.
Motivational evaluation of food security programs in Central Java, Indonesia
Authors: Sutrisno Joko , Marwanti Sri , Anugrah Putri Hilda , Nadifta Ulfa Amalia , Nurhidayati Indah
Published: July 2024

Purpose. This research aims to determine the level of motivation of the target audience (group, farmer associations (Gapoktan) or farm) and factors that influence motivation in participating in the implementation of the Toko Tani Indonesia (TTI) program.
Methodology / approach. This research was conducted by direct interview method with all Farmer Shops and Gapoktan / Poktan in three regions in Central Java, namely Semarang City, Sukoharjo Regency, and Grobogan Regency. Data collection is carried out using a questionnaire with a Likert scale measurement. The methods used for analysis are descriptive statistics and inferential statistics using the partial least squares structural equation modeling (SEM-PLS).
Results. The results show that the motivation level of TTI actors is high, meaning that program implementers in the field have a substantial boost from social, economic, and socio-economic factors. These results indicate that this food security program can be implemented well because field implementers can feel the overall positive impact. Furthermore, in SEM analysis, factors influencing motivation show that mediating variables for capacity and perception significantly correlate with motivation. Meanwhile, the government support and characteristics variables have a significant relationship with the mediation variables.
Originality / scientific novelty. The novelty of this study is the analysis of research conducted on the motivation of food security program actors with the object of study that is rarely used as research, namely the PUPM Program through the Indonesian Farmer Shop (TTI). This program aims to stabilise prices and solve supply chain problems in Indonesia. This is so that rice prices do not harm farmers or the community. Therefore, the value of this study is that it attempts to answer the question of how to influence the motivation and sustainability of the program so that the government, together with the community and stakeholders, can ensure national food security.
Practical value / implications. The research results can be a recommendation for related parties and policymakers to continue implementing the TTI program to implement national food security. This study shows that the government can use these factors to maintain and increase motivation to maximise program implementation; so that the objectives of this program can be implemented and the program can be continued for the following periods.
Change of adaptability to increase employee performance in state-owned enterprises in agriculture
Authors: Pramudito Dicky , Suharnomo  , Mahfudz
Published: July 2024

Purpose. The main purpose of this research is to summarise the descriptive analysis of change impact and evaluate the impact of change adaptability on employee performance in state-owned enterprises (SOE) in Indonesian agriculture.
Methodology / approach. This study integrates theoretical perspectives on change management, adaptability, organisational learning, and employee performance. The model was tested at Indonesian agricultural state-owned enterprise which consists of 14 companies around Indonesia. The sample comprised 373 employees in middle management. Descriptive analysis and probability sampling were used with a disproportionate stratified random sampling technique, Likert questionnaire scale, and indexing with three box methods and Structural Equation Model in Analysis of the Moment Structure program used for the research model.
Results. The findings suggest that learning from past change has a positive and significant effect on employee performance, but the adaptability of change and memories of change have a non-significant effect on employee performance. The models fit the Goodness of Fit Criteria (GFI = 0.934; AGFI = 0.911; CMIN/DF = 1.918; RMSEA = 0.050; TLI = 0.982; CFI = 0.985; NFI = 0.969; p-Bollen-Stine Bootstrap = 0.058); and also based on the descriptive analysis, changes in technology is the most significant changes that affect on company.
Originality / scientific novelty. Several studies in the literature include the relationship between change readiness, and adaptability on employee performance, nevertheless, this study further builds and examines the construct of adaptability of change, memories of change, learning from the last change, identifying employee performance scales that should be paid more attention to and the significance among them.
Practical value / implications. Based on the study’s findings, the role of learning from past changes in affecting employee performance in Indonesian agricultural state-owned enterprise provides a new and significant insight into the research literature on change adaptability and the challenges facing these companies. It has practical implications for managers and leaders confronting organisational change management in Indonesia, enhancing employee performance, and realising sustainable agriculture.