bluuebunny/crossref_metadata_2025 huggingface dataset:
Protection of people from shock waves through engineering-technical facility fortification
Authors: KOMAROV A.A. ,   National Research Moscow State University of Civil Engineering, SHANGARAEV R.R. , IGOLNIKOVA E.A. , IVANOV V.N. ,   State Fire Academy of EMERCOM of Russia,   State Fire Academy of EMERCOM of Russia,   State Fire Academy of EMERCOM of Russia
Published: July 2024

Purpose. Protective screens (barriers) are used in areas with large crowds of people to reduce the likelihood of human injury from explosive devices used in terrorist acts. To assess the effectiveness of protective screens, it is necessary to determine the following initial data in advance: the weight of the explosive device in TNT equivalent; the area being protected, and the acceptable probability of human injury within it. The article presents a general methodology for determining the effectiveness of protective barriers against terrorist-directed explosive devices. An example is given of using the developed methodology to determine the most optimal solution for protective barriers for a specific object. Methods. Various numerical simulation methods are used to solve gas dynamics problems. When modeling explosions accompanied by shock impacts, the Godunov’s scheme – solving the breakdown of an arbitrary discontinuity problem – is used. The problem of the breakdown of an arbitrary discontinuity in numerical schemes is reduced to a system of nonlinear equations related to the pressure and velocity of the medium at the discontinuity point, which determine the mass and momentum fluxes exchanged between adjacent computational cells. Findings. The author's experimental research methodology allows obtaining all the necessary information about the parameters of explosive loads formed during internal accidental explosions. Research application field. The research results can be used in the design of anti-terrorist protective structures. Conclusions. Blast loads are presented for the placement of anti-terrorist protective structures. Reduction in blast loads is shown for three different placement options of protective structures. The conditional probability of human injury by an air shock wave is determined. Based on the found parameters, the effectiveness of anti-terrorist protective structures is assessed for three different placement options.
Assessment of β-lactamase inhibition and antioxidant potential of ethanolic and aqueous leaf extracts of Irvingia gabonensis using GC-MS method
Authors: Okereke Stanley Chukwuma , Edom Valentine Chibuike , Nwaogwugwu Caleb Joel , Aaron Chinomso Friday , Ifegwu Prince oko , Iwuchukwu Bruno Obinna , Ekechukwu George Ugochukwu , Alugbuo Stanley Udochukwu , James Ugoaghalam Uche
Published: July 2024

Objectives:

This study aimed to investigate the antibiotic and antioxidant potential of aqueous and ethanol extracts from Irvingia gabonensis leaves, with a specific focus on their ability to inhibit β-lactamase enzyme activity. Both in vitro and in vivo approaches were employed to comprehensively assess the characteristics of the leaf extracts. Irvingia gabonensis, known for its medicinal properties, has been of interest due to its reported pharmacological activities. In the face of rising antimicrobial resistance, exploring natural sources for antimicrobial and antioxidant agents is crucial. This study builds upon existing knowledge by evaluating the phytochemical composition and potential therapeutic applications of Irvingia gabonensis leaf extracts.

Materials and Methods:

Gas chromatography-mass spectrometry (GC-MS) analysis was employed to identify the chemical components present in ethanolic leaf extracts. Antioxidant activities were assessed through various assays, including DPPH, FRAP, nitric oxide radical scavenging, and MDA scavenging assays. In vivo experiments involved the administration of different concentrations of leaf extracts to albino rats over a 28-day period. Blood samples collected were utilized for serum separation, enabling the analysis of antioxidant assays in vivo, including β-lactamase inhibition, lipid peroxidation (MDA), superoxide dismutase (SOD), and catalase (CAT) activity.

Results:

The ethanolic extracts exhibited a significant 65.96% inhibition rate against β-lactamase enzyme activity. Additionally, there was an increase in the concentrations of glutathione (GSH) and glutathione peroxidase (GPx), as well as heightened catalase (CAT) activity. Simultaneously, a decrease in malondialdehyde (MDA) concentration indicated the extracts’ potential to mitigate lipid peroxidation. These results highlight the robust antimicrobial and antioxidant properties of Irvingia gabonensis leaf extracts.

Conclusion:

Irvingia gabonensis leaf extracts demonstrate substantial potential as antimicrobial and antioxidant agents, emphasizing their role in combating antimicrobial resistance. The significant inhibition of β-lactamase enzyme activity and the modulation of key antioxidant markers suggest the extracts’ therapeutic relevance. This study contributes to the understanding of Irvingia gabonensis phytochemical composition and supports its potential application as an antioxidant supplement and β-lactamase inhibitor.
A Case of Hodgkin’s Lymphoma in 5 Years Old
Authors: Singh Kartar , Sharma B. K. , Bang Mukesh , Wagh Aniruddha , Revu Shivakala Goutham
Published: July 2024

Hodgkin’s lymphoma in young children is very rare. We report a case of a child of age five years who is presented with swelling over the neck with a duration of 8-month weight loss and slightly pallor. The lymph node biopsy showed Hodgkin’s lymphoma of mixed cellularity type. Immunohistochemistry was done and showed positive markers. Bone marrow was obtained and was negative. The child was referred immediately to Rashtrasant Tukdoji Regional Cancer Centre for further management and given chemotherapy. His swelling was reduced by 85%, and the child is symptomatically better without any complications.
Exploring the Versatility of Aluminum in Mechanical Engineering
Authors: Alawady Mohamed Ahmed
Published: July 2024

Aluminum, known for its lightweight, high strength, and excellent corrosion resistance, is a critical material in mechanical engineering. Its unique properties make it indispensable in various industries, including aerospace, automotive, construction, and packaging. This research paper explores the fundamental properties of aluminum that contribute to its widespread use. It discusses the metal's high strength-to-weight ratio, excellent thermal and electrical conductivity, and significant ductility and malleability. These characteristics allow aluminum to be formed into complex shapes and structures, essential for advanced engineering applications. In the aerospace industry, aluminum alloys are extensively used in manufacturing aircraft frames and components, contributing to improved fuel efficiency and performance. In the automotive sector, aluminum's lightweight nature helps reduce vehicle weight, enhancing fuel efficiency and lowering emissions. The construction industry benefits from aluminum's strength and corrosion resistance, making it ideal for building durable infrastructure. Additionally, aluminum's high thermal conductivity makes it suitable for heat exchangers in HVAC systems, automotive radiators, and electronic cooling systems. Recent advancements in aluminum technology have further expanded its applications. The development of aluminum-lithium alloys offers higher strength and lower density than traditional aluminum alloys, making them particularly suitable for aerospace applications. Recycling advancements have made aluminum production more sustainable, reducing environmental impact and energy consumption. Research into nanostructured aluminum shows promise for creating materials with enhanced properties, such as increased strength and improved resistance to wear and corrosion. Additive manufacturing with aluminum alloys allows for the creation of complex and lightweight components, previously challenging to produce with traditional methods. In conclusion, aluminum's versatile properties make it an essential material in mechanical engineering. Its applications across various industries demonstrate its critical role in advancing technology and improving performance. Ongoing research and technological advancements continue to enhance aluminum's capabilities, ensuring its significance in the field of mechanical engineering.
Ni-Catalyzed Asymmetric Reductive Arylation of ⍺-Substituted Imides
Authors: Chen Li Ming , Shin Chung Keun , Delano Travis , Gheibi Golsa , Reisman Sarah
Published: July 2024

α-Aryl imides are common structural motifs in bioactive molecules and proteolysis-targeting chimeras designed for targeted protein deg-radation. An asymmetric Ni-catalyzed reductive cross-coupling of imide electrophiles and (hetero)aryl halides has been developed to synthesize enantioenriched α-arylglutarimides from simple starting materials. Judicious selection of electrophile pairs allows for coupling of both electron-rich and electron-deficient (hetero)aryl halides in good yields and enantioselectivities.
Decoupling CO2 Effects from Electrochemistry: A Mechanistic Study of Copper Catalyst Degradation
Authors: SERRA-MAIA RUI , Varley Joel , Weitzner Stephen , Yu Henry , Shi Rongpei , Biener Jurgen , Akhade Sneha , Stach Eric
Published: July 2024

Copper-based nanoparticles are key electrocatalysts for CO2 electrochemical reduction (CO2 ER) to liquid fuels and other value-added products. However, the copper catalyst can undergo rapid electrochemical corrosion, leading to a loss of catalyst material, fluctuations in the reaction conditions and increasing operational costs. We establish a mechanistic understanding of this detrimental process using in situ electrochemical electron microscopy and density functional theory (DFT). We find that copper corrosion can occur in the presence of CO2 in electroless conditions and before the onset potentials required for CO2 ER. The effects are isolated from pH changes resulting from dissolved CO2. Particles of corroded copper have oxidized surfaces, in contrast to copper surfaces exposed to CO2-free electrolytes. DFT calculations identify multiple routes by which CO2 can behave as a dissolution agent for copper and copper-oxide surfaces and suggest that formate-intermediates are a key driver of corrosion. This study highlights microenvironment-based factors that affect copper performance and degradation, facilitating strategies to inhibit and reverse copper degradation during CO2 ER.
Real-time label-free imaging of living crystallization-driven self-assembly
Authors: Guo Yujie , Xia Tianlai , Walter Vivien , Xie Yujie , Rho Julia , Xiao Laihui , O'Reilly Rachel , Wallace Mark
Published: July 2024

Living crystallization-driven self-assembly (CDSA) of semicrystalline block copolymers is a powerful method for the bottom-up construction of uniform polymer microstructures with complex hierarchies. Improving our ability to engineer such complex particles demands a better understanding of how to precisely control the self-assembly process. Here, we apply interferometric scattering (iSCAT) microscopy to observe the real-time growth of individual poly(caprolactone)-based fibers and platelets. This label-free method enables us to map the role of key reaction parameters on platelet growth rate, size, and morphology. Furthermore, iSCAT provides a contrast mechanism for studying multi-annulus platelets formed via the sequential addition of different unimers, offering new insights into the spatial distribution of polymer compositions within a single platelet.
Size Asymmetry in Multidomain Single Crystals and the Development of Curved Surfaces
Authors: Nasi Hadar , Barak Daniel , di Gregorio Maria C. , Shimon Linda J. W. , Lahav Michal , van der Boom Milko E.
Published: July 2024

Straight facets and sharp edges are among the most distinctive indicators of well-defined crystals, and often reflect the polyhedral geometry and symmetry of the underlying close-packed, molecular structure. Curved morphologies are sometimes observed in biogenic crystals where templating or non-classical crystallization processes (e.g., crystallization via amorphous states) occur. Here we report the formation and growth of copper-based metal-organic frameworks (MOFs) that crystallize in the hexagonal space group, P622. The crystals begin as hexagon-like structures, developing over time into complex flower-like structures having two decks joined in the center. Each layer has 6 well-defined petals with curved lateral surfaces. The growth mechanism shows initial straight petals that become progressively more curved with increased faceting. Remarkably, despite its multi-domain appearance, the entire entity is a single-crystal. The curved morphology is correlated with the crystallographic structure and the arrangement of nanosized channels within this structure. Crystal habits are typically considered inconsistent with curved morphologies. This work suggests that crystallographic explanations can support the development of such surfaces for low-density structures.
Advanced Synthesis and Light-Matter Interaction of CsPbBr3 Nanowire Arrays in Anodized Aluminum Oxide Templates: An Effect of Pore Geometries
Authors: Prasad Neena , Shalom Hila , Leybovich Avigail , Prilusky Jonathan , Lena Yadgarov Lena
Published: July 2024

Halide perovskite nanowires (HP-NWs) exhibit fascinating optical properties, making them attractive for advanced technologies. However, instability and lack of an effective synthetic protocol limit their commercialization. To address this, we use nanoporous anodized aluminum oxide (AAO) metamaterial as templates for the growth of perovskite (CsPbBr3) NW arrays. AAO functions as both growth template and stabilizing medium. The NW array exhibits strong light-trapping ability, the pore geometric features (pore radius-R and distance between pores-d) have the potential to enhance the light-matter interactions (LMI). We demonstrate the impact of R and d on LMI within the AAO/CsPbBr3 system using theoretical Finite Difference Time Domain (FDTD) simulations for the first time. Optimal LMI was observed with R=d=25 nm and R=d=50 nm. We report ligand-free synthesis of CsPbBr3 NW arrays via spin-coating, drop-casting, and inverse temperature crystallization (ITC). The spin-coating and drop-casting yielded poor pore filling while the modified ITC method yielded nearly complete (>90%) pore filling with significant NW lengths. Our findings highlight the potential of AAO templates for protecting CsPbBr3 and addressing synthetic challenges in HPs and other semiconductor NW arrays. This study provides valuable references for LMI in HPs and advances HPs and NW array-based optical devices and renewable energy applications
Utilitarian Use vs. Hedonic Use? The Influence of ChatGPT Usage Type on User
Satisfaction
Authors: 贾 煜 , 韦 懿轩 , 黄 玥 , 罗 晨
Published: July 2024

在不同的使用场景下,用户对ChatGPT
的期望和需求可能存在显著差异,这直接影响了用户的使用体验和满意度。现有关于ChatGPT使用满意度的研究相对有限,本研究从ChatGPT使用类型切入,立足于期望不一致理论,探讨ChatGPT
的不同使用类型(功能导向vs娱乐导向)对用户满意度的影响,并力图揭示其后的作用机制。通过开展一项嵌入于真实情境的单因素组间随机实验,研究者发现,与功能导向的ChatGPT
使用相比,娱乐导向ChatGPT
使用场景下用户的满意度更高。具体而言,在答案准确性和完整性满意度上,娱乐导向的ChatGPT使用显著高于功能导向使用,而在答案时效性方面,两组不存在显著差异。此外,挫败感在ChatGPT使用类型与用户满意度之间起中介作用。与功能导向ChatGPT
使用相比,娱乐导向使用情境中的用户挫败感更弱,进而导致了更高的满意度。
The Time Landscape of News Production on Short Video Platforms
Authors: 吴 鼎铭 , 罗 烨
Published: July 2024

本研究以时间景观理论为切入口,采用实证研究方法展现与分析短视频平台的界面、算法和新闻内容所形塑的时间景观及其文化效应。研究发现:第一,短视频平台通过技术界面和话语形态塑造了连续的时间景观,削弱了用户在观看实践中的时间感知,技术与资本的合谋让用户陷入更深的时间异化之中;第二,在算法驱动之下,短视频的新闻生产与消费形成了一个加速闭环,并与资本的增值“齿轮”相互咬合;第三,平台形塑了“此刻”与“点状”的时间形态,丰富绵延的时间性被抽空,无聊填满了时间的缝隙。分析短视频新闻生产平台的时间景观,我们不仅能够窥视数字资本时代时间逻辑的变化,同时可以帮助我们重新审视资本、技术、平台与人之间隐而不见的权力关系。
On existence of extremal integrable solutions and integral inequalities for nonlinear Volterra type integral equations
Authors: Dhage Bapurao , Dhage Janhavi , Dhage Shyam
Published: July 2024

We prove the existence of maximal and minimal integrable solutions of nonlinear Volterra type integral equations. Two basic integral inequalities are obtained in the form of extremal integrable solutions which are further exploited for proving the boundedness and uniqueness of the integrable solutions of the considered integral equation.
Analysis of the Impact of Big Data Technology on Environmental Pollution Control Audit
Authors: Yang Xianrui , Liu Jinyu
Published: July 2024

As China strives towards the second centenary goal, increasing attention is being paid to environmental pollution and other related issues. Concurrently, with the rapid development of big data technology, many big data solutions have been applied to environmental pollution control audits, exerting a significant impact. This paper presents the current situation of environmental pollution audits, summarizing the application of big data from the perspectives of both domestic and international research. In terms of data collection and data analysis for environmental pollution audits, cloud platform technology, and visualization technology are selected based on multiple data sources. The impact in the field of environmental pollution control audits is further analyzed. It is found that the environmental pollution audit cloud platform is not yet perfect, the technical skills of audit personnel are insufficient, and some technologies are not mature. Relevant suggestions are put forward to provide a reference for the future development of big data technology and its integration with environmental pollution control audits.
The Proof Dilemma of Porter’s Hypothesis: Analysis of Its Verification Difficulties
Authors: Huang Zhiyao , Qu Jiajie
Published: July 2024

The Porter Hypothesis, proposed by Michael E. Porter, suggests that stringent environmental regulations can enhance corporate innovation and competitiveness, challenging the traditional view that regulations increase business costs. It argues that regulations motivate firms to innovate, leading to improved productivity, cost reductions, and new market opportunities. However, there are proponents and critics in academia regarding the hypothesis. Supporters claim regulations change corporate behavior, reducing agency costs and boosting research and development. Critics argue that if win-win situations exist, businesses would naturally pursue them without regulatory incentives. Key challenges in proving or refuting the hypothesis include its various versions, the difficulty in quantifying innovation and competitiveness, the complex interplay between regulation, innovation, and competitiveness, and the varying impacts across industries and regions. Additionally, the effects may require a long time to manifest, and the hypothesis’s applicability is influenced by evolving environmental policies and market environments. Despite mixed empirical findings, the Porter Hypothesis provides a valuable framework for understanding the relationships among environmental regulation, innovation, and competitiveness, but its validation requires a more comprehensive assessment.
Research on the Impact of Digital Transformation on the Business Performance of Commercial Banks
Authors: Wu Zhengyu
Published: July 2024

Nowadays, with the development of the digital economy, commercial banks are actively conducting digital transformation. Studying the impact of the digital transformation of commercial banks on their operating performance can help commercial banks form a stronger core competitiveness and promote high-quality financial development. Based on the above background, this article first describes the status and development of digital transformation and development of commercial banks, and secondly analyzes whether Chinese commercial banks’ digital transformation is conducive to improving their operating performance. Thirdly, by selecting the data of the listed commercial banks in the ten years of 2012–2022, this article obtains the empirical testing of the digital transformation on different property rights. Finally, the higher the level of digitalization, the higher the digital level, the more significantly promotes the performance of commercial banks. Finally, based on the above analysis, this article puts forward feasibility opinions on commercial banks and related regulators.
Food Rheology: An Introduction and Fundamentals Concepts
Authors: Shanmugam Kirubanandan
Published: July 2024

Food rheology is the study of the flow and deformation of food materials. It involves understanding the physical and mechanical properties of food, such as how it behaves when subjected to external forces or changes in temperature. Understanding food rheology is essential in various food processing and manufacturing industries as it helps in product development, quality control, and optimization of processing parameters. Some fundamental concepts in food rheology include as follows. Viscosity refers to a material’s resistance to flow. In food rheology, it is a measure of how easily a food material flows under an applied force. Food materials can exhibit different types of viscosity, such as Newtonian, pseudoplastic, dilatant, and viscoelastic behavior. Shear stress is the force per unit area applied to a food material, while the shear rate is the rate at which the food material deforms. In food rheology, these two variables are used to describe the flow behavior of food materials. Different food materials have different flow behaviors. Some foods, like water, exhibit Newtonian flow behavior, where the viscosity remains constant regardless of the applied shear rate. Other foods, like ketchup or mayonnaise, exhibit non-Newtonian flow behavior, where the viscosity changes with the shear rate. Elasticity refers to a material’s ability to regain its original shape after deformation. In food rheology, elasticity is important in determining the texture and shelf life of food products. Viscoelasticity refers to the combined properties of both viscosity and elasticity, where a material exhibits both liquid-like (viscous) and solid-like (elastic) behavior. Yield stress is the minimum amount of shear stress required to initiate flow in a material. Many food materials, such as gels or semisolid foods, exhibit yield stress where they behave like a solid until a certain stress threshold is reached. By understanding these fundamental concepts, food scientists and engineers can manipulate and control the rheological properties of food materials to achieve the desired texture, mouthfeel, and sensory attributes, as well as optimize processing conditions to improve the overall quality of food products.
Research of Tax Governance on Urban Village Rent: A Case Study of X Village in Dongguan City
Authors: Guo Haotong , Zhong Jiayu , Fang Jingkai , Wu Jiamei , Lin Minxian , Huang Jin , Jiang Bingzhao
Published: July 2024

Tax governance is an important part of the national governance system and also a significant reflection of the national governance capacity. Using X Village in Dongguan City as a case study, this paper summarizes the tax governance issues in the urban rental market through field investigations and online data collection, as well as identifies the deficiencies in current laws, regulations, and policies. The research reveals that there are practical problems such as regulatory gaps and implementation difficulties, asymmetric market information, inadequate participation in social governance, and difficulty in coordinating conflicting interests in X Village. In response to these issues, the study explores corresponding paths for governance and proposes methods such as establishing comprehensive regulations and strengthening law enforcement, creating an information-sharing platform, enhancing participation in social governance, and balancing economic interests to address the tax irregularities in urban village rentals. This will help provide a solid foundation for the sustainable development of urban villages.
La necrópolis romana bajoimperial del yacimiento de La Magdalena (Alcalá de Henares, Madrid))
Authors: Heras Martínez César
Published: July 2024

La fase romana bajoimperial del yacimiento de La Magdalena (Alcalá de Henares) queda determinada por una necrópolis que tendría sus inicios en el segundo tercio del s. III y que se extendería hasta la primera mitad del s. V. Se localiza próxima al Camino de los Afligidos, fosilizando lo que probablemente sería la antigua vía romana que uniría Emerita Augusta con Caesar Augusta, de la que Complutum sería un punto intermedio y que, a su vez, conectaría con otras vías como la que discurriendo por Segobriga llega hasta Carthago Nova. Cuenta con 156 tumbas donde fueron inhumados hasta 164 individuos, un conjunto de estructuras hidráulicas que periféricamente delimitarían el espacio sagrado, así como un alto número de estructuras menores que se vincularían con actividades características del ritual funerario.
KEMAMPUAN KOMUNIKASI MATEMATIS SISWA DENGAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA MATERI SPLTV
Authors: Dwi Wahyuni  , Annisa Swastika
Published: July 2024

Kemampuan Komunikasi Matematis (KKM) merupakan kecakapan seseorang guna dapat menyampaikan ide matematika melalui tulisan atau lisan. Tujuan dari penelitian ini adalah untuk mengetahui dan menganalisis KKM siswa dalam model pembelajaran Problem Based Learning (PBL). Penelitian ini menggunakan metodologi concurrent triangulation mixed-method. Populasi penelitian ini adalah siswa kelas X pada salah satu SMA di Provinsi Jawa Tengah. Sampel pada penelitian ini terdiri dari siswa X-E6 dan X-E8. Tes dan wawancara merupakan teknik pengumpulan data yang digunakan. Analisis data kuantitatif menggunakan independent sample t-test, sementara analisis data kualitatif terdiri dari reduksi data, penyajian data, dan penarikan kesimpulan. Hasil pada penelitian ini menunjukkan bahwa (1) KKM siswa dengan PBL lebih baik daripada konvensional, (2) PBL pada KKM dapat membantu siswa untuk menjelaskan ide matematika  melalui tulisan dan lisan, mengomunikasikan konsep matematika secara benar, mengkonsolidasi pemikiran matematis dengan komunikasi, tetapi masih terdapat kekurangan dalam memeriksa dan menilai pemikiran dan teknik matematika orang lain.
ANALISIS KEMAMPUAN BERPIKIR KRITIS SISWA SMP DALAM MENYELESAIKAN SOAL MATEMATIKA TIPE HOTS PADA POKOK BAHASAN BANGUN RUANG SISI DATAR
Authors: Fitria Azzahra Fathna  , Sri Sutarni
Published: July 2024

Penelitian ini bertujuan agar melihat kemampuan berpikir kritis siswa SMP ketika memecahkan permasalahan matematika tipe HOTS pada sub bab bangun ruang sisi datar. Penelitian ini memakai metode deskriptif kualitatif terhadap 25 siswa SMP Muhammadiyah 2 Surakarta sebagai sampel. Berdasarkan hasil penelitian, kemampuan berpikir kritis siswa SMP Muhammadiyah 2 Surakarta yang memecahkan soal HOTS topik bangun ruang sisi datar terhadap persentase yaitu kemampuan berpikir kritis kategori sangat baik sebesar 25%. kemudian kemampuan berpikir kritis kategori baik sebesar 60%, sementara itu tidak adanya siswa yang mempunyai kemampuan berpikir kritis berada pada kategori cukup, dan sebesar 15% siswa yang kemampuan berpikir kritisnya berada pada kategori rendah. Selanjutnya untuk kemampuan berpikir kritis sendiri setiap indikator mempunyai persentase, dengan nilai tertinggi pada indeks interpretatif sebesar 97,3%, disusul indeks analisis sebesar 93,3%, selanjutnya pada indeks evaluasi sebesar 61,3%, dan yang paling renda pada indikator inferensi 34,6%.
EKSPLORASI DESAIN MEDIA ANDROID UNTUK MENINGKATKAN KEMAMPUAN NUMERASI SISWA DENGAN METODE DESIGN THINKING
Authors: Riyadi Slamet , Ida Dwi Jayanti  , Didik Purwosetiyono
Published: July 2024

Keterampilan numerasi dibutuhkan dalam semua aspek kehidupan. Sayangnya, kemampuan numerasi siswa di Indonesia masih tergolong rendah. Salah satu faktor yang mempengaruhi tingkat kemampuan numerasi siswa, ialah melalui pembelajaran yang bermakna yang disesuaikan dengan kebutuhan siswa.
Di sisi lain, perkembangan teknologi sudah semakin pesat, dimana teknologi sudah menjadi bagian tak terpisahkan dalam keseharian kehidupan manusia.
Penelitian ini dilakukan dengan tujuan untuk mengeksplorasi permasalahan-permasalahan yang dialami oleh siswa SMP dalam pembelajaran matematika dikelas. Penelitian dilakukan dengan pendekatan desain thinking dan metode pengumpulan data berupa angket. Subjek penelitian adalah siswa SMP yang berasal dari 3 Sekolah yang berbeda, yaitu SMPN 2 Tengaran, SMPN 4 Tengaran, dan SMP SIKK (Sekolah Indonesia Kota Kinabalu) dengan sampel penelitian terdiri dari responden siswa dan guru. Data dikumpulkan dengan kuesioner berupa google form. Kemudian hasil yang didapatkan dianalisis mulai dari tahap empathize, define, dan ideate.
Hasil eksplorasi penelitian menunjukkan bahwa yang dibutuhkan oleh siswa dan guru dalam belajar matematika adalah adanya pembelajaran yang menyenangkan dengan menggunakan media interaktif yang dapat diakses melalui handphone.  Dari hasil eksplorasi tersebut, peneliti merancang pengembangan media interaktif berbasis android dengan pendekatan desain thinking untuk meningkatkan kemampuan numerasi siswa.
 
Kata kunci: media android, numerasi, design thinking
Znaczenie edukacji w procesie zdrowienia dziecka z chorobą nowotworową
Authors: Winnicka Daniela
Published: July 2024

Choroba nowotworowa może zaatakować dziecko w każdym momencie jego rozwoju. Nie bez znaczenia jest wiek pacjenta w chwili diagnozy. Im młodsze dziecko, tym skutki zastosowanego leczenia przeciwnowotworowego mogą być bardziej niekorzystne dla organizmu, który nadal jest w intensywnej fazie rozwoju. Postęp medyczny sprawia, że liczba dzieci wyleczonych z nowotworu z roku na rok się powiększa. Przez ostatnie dziesięciolecia skuteczność terapii medycznej znacznie się poprawiła, w związku z tym należy się  zastanowić czy pozamedyczne formy pomocy dzieciom z chorobą nowotworową są wystarczające i czy dzieci, które są w trakcie leczenia i te, które są już po leczeniu medycznym, otrzymują odpowiednią i skuteczną opiekę pozamedyczną, mającą na celu niwelowanie skutków ubocznych leczenia przeciwnowotworowego. W poniższym artykule zostały opisane medyczne terapie przeciwnowotworowe i ich wpływ na młody organizm, jak też znaczenie edukacji w życiu pediatrycznego pacjenta onkologicznego, która jest skuteczną formą pomocy pozamedycznej na onkologii dziecięcej.
«I Know You as a Venerable Scholar and a Great Connoisseur of Oriental Nationalities, a Defender of Their Interests in the Academic Field...». Scholars and Educators G. Rakhim and G. Saadi (Unpublished Letters to Academician V.V. Bartold (1927–1929))
Authors: Valeev R. M. , Valeeva R. Z. , Inalcik G. , Minikhanov F. G. , Rakhimova Ya. R.
Published: July 2024

The period from the late 19th to the first third of the 20th century witnessed a revival and advance of national science, culture, and art. It was also marked by a growing sense of national identity and a historical and cultural pursuit by the Tatar intelligentsia. In the 1920s, the formation and development of national humanities research in Kazan were driven by the efforts of dedicated Tatar scholars and educators. Among the most prominent figures were Gali Rakhim (Mukhametgali Mukhametshakirovich Gabdrakhimov) (1892–1943)–a writer, poet, literary historian, and folklorist, Gabdrakhman Saadi (Saadi Gabdrakhman Gainanovich (1889–1956)–a literary critic and orientalist. They were the pioneers of the Tatar Renaissance and contributed substantially to the development of scholarly studies in history, literature, linguistics, and archeography of the Turkic peoples, with a particular focus on the Tatar people. Engaged in solving a variety of problems, they were the encyclopedists who determined modern academic and pedagogical trends in many university and educational centers of Kazan during the 1920s. This article considers their previously unknown epistolary heritage: one letter of G. Rakhim (1927) and two letters of G. Saadi (1928 and 1929) to V.V. Bartold, an outstanding orientalist and academician, from his personal collection stored in the Archive of the Russian Academy of Sciences, St. Petersburg Branch. These letters provide clear and strong evidence of the enduring professional and personal contacts between the Tatar scholars and leading Russian orientalists in the late 1920s.
Effect of Protein-Starch Interaction on Rheological, Textural, and Sensory Properties of keropok lekor
Authors: Abd Elgadir M. , Bakar J. , Abdul Rahman R. , Karim R. , Mariod A.A.
Published: July 2024

This article considers the effect of protein–starch interaction on the gelling, textural, andsensory properties of keropok lekor used as a fish protein–starch model. A two-level factorial design was employed to analyze the quality and acceptability of different formulations of keropok lekor crackers depending on the ratios of minced fish (MF, 20–50 g (w/w)), sago starch (SS, 10–40 g (w/w)), and water (W, 10–35 g (w/w)). The parameters measured were the onset (T0) and peak (Tp) temperatures of gelatinization, storage modulus (G′), and loss modulus during gelatinization (G″). The samples were rated by a group of 30 panelists during texture profile analysis and sensory evaluation. The most preferred samples had the MF : SS : W ratio of 20 : 10 : 10 and were characterized by the lowest onset and peak temperatures of gelatinization. Therefore, this formulation was singled out as optimal for keropok lekor.
“BLOODY JACKALS ARE GERMAN FASCIST DOGS!’ THE IMAGE OF THE ENEMY IN TULA NEWSPAPERS IN 1941
Authors: Kondratenko Sergei Yu. ,   Russian State University for the Humanities
Published: July 2024

The article considers specifics in the formation of the image of the enemy – Nazi Germany and the Wehrmacht – by Tula newspapers in the first months of the Great Patriotic War. Based on materials published in the newspapers “Kommunar” (Tula), “Stalin’s Banner” (Uzlovaya), “Stalinogorskaya Pravda” (Stalinogorsk), features in the description of the enemy are traced that influenced the creation and transformation of the image enemy in the minds of Soviet citizens. From the first days of the war, journalists in their publications used vivid negative images to characterize Germany and Wehrmacht soldiers, borrowed from the practice of criminal law. The attribution of zoomorphic traits to Nazi leaders and German soldiers was also widely used. It was especially emphasized that enemy soldiers and officers are war criminals who have stained their hands with the blood of innocent citizens, who have violated the norms of international law, the laws and customs of war, and all their military victories were achieved through overwhelming numerical superiority. Thus, among Soviet citizens there created the image of a cruel enemy devoid of moral principles, of human appearance, who strives to enslave the Soviet people and is capable of winning only with the help of primitive, very resource-intensive tactics.
THE FIRST ICELANDIC HERMITS IN A PAGAN ENVIRONMENT: ÁSÓLFS ÞÁTTR IN LANDNÁMABÓK
Authors: Litovskikh Elena V. ,   Institute of World History, Russian Academy of Sciences
Published: July 2024

Despite the uniformity of the main body of the Icelandic Landnámabók the þáttr about Ásólfr alskik, a hermit of the initial period of the settlement of the island, varies greatly in its early redactions. In the manuscript Sturlubók, Ásólfr’s voluntary life as a hermit is motivated by his reluctance to have contact his pagan neighbours, and the miracles he performs are open to rational interpretation. In addition, this redaction does not emphasise Ásólfr’s nationality at all. A completely different picture is presented by the second redaction, Hauksbók. The text of the þáttr here is about three times longer. In particular, additional posthumous miracles and prophetic dreams led to the discovery of the hermit’s relics and their transfer to the church. Ásólfr’s family ties are specified in detail, and his Celtic roots are especially noted. Analysis of this version clearly demonstrates how important the role of Celtic and AngloSaxon Christianity was in the Christianisation of Iceland. This is probably why, according to the Hauksbók version, the text of Ásólfs þáttr is reproduced in all subsequent redactions of Landnámabók.
Virtual Self-identity and its Relationship to Self-esteem among University Students during Corona Pandemic
Authors: Fakhrou Abdulnaser , Moussa Mahmoud Ali
Published: July 2024

The main objective of this research is to test the factor structure of digital self-identity scale and its relationship to self-esteem among Arab university students during COVID-19 pandemic. 243 available participants had been drawn from university students whose age ranged from 18 to 46 years (M=21, Std= 4.54 years). The study relied on the correlational approach. The study tested three models of the structure of the virtual self-identity scale (the autonomous model, the relational model, and the interactive model). The results showed that the relational model was superior to the interactive model in light of the matching indicators. The results of the study found a negative correlation between self-esteem and virtual self-identity. Accordingly, the identity of the virtual self is the result of the alternation of the individual's internal selves or the result of the interaction of types of selves.
Customer perception of souvenir clothing ethnic ornaments: Results of using neuromarketing technologies and artificial intelligence
Authors: Yarosh Olga B. , Zhavoronkova Zinaida A.
Published: July 2024

Given consumer adaptability to the established marketing incentives, there emerges a need to improve the methods for promoting textile products. The use of neurotechnology allows determining potential ‘anchors’, such as ethnic ornaments, that can be associated with souvenir products. The article focuses on identifying neuromarketing metrics of consumer perception of souvenir clothing ethnic ornaments based on artificial intelligence technology. The foundation of the study resides in the provisions of sensory marketing. General marketing and special neuromarketing research methods were applied. The empirical data are obtained from electroencephalographic (EEG) experiments, a focus group survey (12 respondents), and a preliminary sample interview (90 respondents) conducted in January–February, 2024. We propose biometry-based approaches to neuromarketing consumer evaluation of ethnic patterns for souvenir clothing and reveal customer reactions to different types of ethnic clothing patterns. The strongest emotional responses to particular ornaments are identified based on the EEG test and verbal questioning of the experimental group. The collected data were processed using artificial intelligence to create modern textile designs for souvenir clothing. The results of the study contribute to the understanding of scent neurostimulation’s impact on the perception of clothing elements, as well as the capabilities of artificial intelligence in providing reasoned marketing solutions.
Assessment of the industrial policy to the military-industrial complex effectiveness based on neural networks based on fuzzy logic
Authors: Starikov Evgeniy N. , Klein Nikolay V. , Vorobyov Valery I.
Published: July 2024

The relevance of the topic under consideration on the development of universal applied methods for assessing the effectiveness and efficiency of industrial policy in the military-industrial complex (hereinafter - MIC) is due to its high practical significance in the context of the challenges of technological development associated with digitalization and informatization. It is also due to the peculiarities of the current stage of Russia’s economic development in the conditions of financial and technological sanctions from Western states. The purpose of the study is to develop the main provisions of a methodological approach to assessing the effectiveness of industrial policy in the defense industry based on the use of economic-mathematical modeling apparatus, which involves the construction of neural networks based on fuzzy logic. In the course of the research the authors have solved the following problems: mathematically formalized the object of analysis; developed an algorithm for determining the effectiveness of industrial policy in the MIC using neural networks; formalized the model for assessing the effectiveness of such industrial policy based on fuzzy sets; proposed a system of indicators for assessing industrial policy in the MIC; determined the sequence of actions in the construction the fuzzy model for assessing the effectiveness of industrial policy in the MIC by means of Fuzzy Logic on the software platform MatLab.
Strategy to Strengthen the Income of Forest Farmers' Group on Coffee Commodities in Mekakau Ilir District, South OKU Regency
Authors: Jumroni  , Munajat Munajat , Permata Sari Fifian
Published: July 2024

This study aims to determine strategies for increasing the income of coffee farmers in Mekakau Ilir District, OKU Selatan Regency. The quantitative analysis used in this research is regression analysis. The results of this study in the form of a strategy to increase coffee farmers' income based on internal and external results showed that the main strategies are optimizing weaknesses and overcoming various threats by reducing land conversion by providing capital, reactivating Gapoktan, optimizing fertilizer use, overcoming the problem of increasing input prices to increase cooperation between extension workers and Gapoktan in Mekakau Ilir District, OKU Selatan Regency.
The Determinants of Green Innovations, Green Innovations, and Performance
Authors: Park Kyong-won , Zou Yuxin , Liang Xuehua ,   Korea Accounting Information Association
Published: July 2024

[Purpose] Companies are facing internal and external pressure to accelerate the paradigm shift centered on low carbon and adapt and implement environmentally friendly business activities. According to this trend, it is becoming important for companies to actively promote the adoption and implementation of environmentally friendly activities such as green innovation. This paper aims to develop a model that verifies the determinants supporting green innovation and the impact of green innovation on performance.
[Methodology] A research model was designed based on previous studies and theories, and a questionnaire survey was conducted on manufacturing companies to verify this. 96 samples of the questionnaire were used for the final analysis, and the hypothesis was verified using PLS－SEM.
[Findings] It was found that corporate environmental ethics and market demand have a direct positive effect on both green product innovation and green process innovation. It was found that stakeholder interest had a positive effect on green process innovation, and management commitment had a positive effect on green product innovation. It was found that green product innovation had a positive effect on environmental and organizational performance. Environmental performance was found to have a positive effect on organizational performance. This supports the ‘Win－Win’ paradigm of environmental efficiency that improvement of environmental performance has a significant effect on organizational performance.
[Implications] Green innovation is driven by corporate environmental ethics, market demand for green products, stakeholder interest, and management commitment. It suggests that participating in environmental business practices such as green innovation can help improve environmental and organizational performance.
Diffraction of displaced Gaussian light beams on ultrasound in paratellurite crystals
Authors: Kulak G. V. , Ropot P. I. , Shakin O. V.
Published: July 2024

The Bragg diffraction of displaced Gaussian light beams on a slow shear ultrasonic wave in paratellurite crystals, in which the beam energy is efficiently transferred from the zero diffraction order to the first, is investigated. It is established that circularly polarized light beams should be used to optimize the energy exchange of diffracted light beams in the considered geometry of acousto-optic interaction. It is shown that the diffracted beams have the form of displaced Gaussian beams, the spatial structure of which is determined by the displacement parameter of the incident beam and the ultrasound power.
About one strengthening of the Massera’s existence theorem of periodic solutions of linear differential periodic systems
Authors: Demenchuk A. K. , Konuh A. V.
Published: July 2024

According to Massera’s theorem, an ordinary differential linear nonhomogeneous periodic system has a periodic solution with a period coinciding with that of the system if and only if this system has a bounded solution. We introduce the class L of vector functions called growing slower than a linear function. This class contains the class B of bounded vector functions in as its own subclass. It has been proved that Massera’s above-mentioned theorem will remain true if in its formulation a bounded solution is replaced by a slower growing solution than a linear function. It is shown that the set B in the metric space (L, distc ), where distc is the uniform convergence metric vector functions on intervals, has Baer’s first category, i. e. almost everything in the sense of the category of space vector functions (L, distc ) are not bounded. This fact shows the significance of the obtained strengthening of Massera’s theorem.
De novo design and virtual screening of potential Bcr-Abl tyrosine kinase inhibitors using deep learning and molecular modeling technologies
Authors: Andrianov A. M. , Furs K. V. , Karpenko A. D. , Vaitko T. D. , Tuzikov A. V.
Published: July 2024

De novo design and virtual screening of small-molecule compounds with a high potential inhibitory activity against the Bcr-Abl tyrosine kinase playing a key role in the pathogenesis of chronic myeloid leukemia (CML) were carried out by an integrated computational approach including technologies of deep learning and molecular modeling. As a result, according to the calculation data we identified 5 compounds exhibiting low values of binding free energy to the enzyme comparable with those predicted for imatinib, nilotinib and ponatinib, anticancer drugs widely used in the clinic to treat patients with CML. It was shown that these compounds are able to form stable complexes with the ATP-binding sites of the Bcr-Abl tyrosine kinase and its mutant form T315I, which is confirmed by the analysis of the profiles of binding affinity and intermolecular interactions responsible for their energy stabilization. Based on the obtained data, these compounds, which have been generated by the deep learning neural network, are assumed to form promising basic structures for development of new effective drugs for treatment of patients with CML.
About two new families of acanthodian fishes (Acanthodii)
Authors: Plax D. P.
Published: July 2024

The article presents some information on two new families of Ptychodictyidae fam. nov. and Nostolepidae fam. nov. that were established on the basis of the author’s personal research and the available literature data. Their main diagnostic features, generic composition, number of species, comparison, stratigraphic and geographical distribution are given. The obtained data supplement the taxonomy of the Palaeozoic acanthodian fishes.