bluuebunny/crossref_metadata_2025 huggingface dataset:
Pemetaan Potensi Wilayah Kelurahan Semanggi
Authors: Malnes Hyldegard Asyera
Published: April 2024

Kelurahan Semanggi merupakan salah satu kelurahan di Kecamatan Pasar Kliwon yang berada di sebelah tenggara Kota Surakarta, Jawa Tengah. Kelurahan Semanggi yang terletak di bantaran Sungai Bengawan Solo ini merupakan sebuah kampung urban yang kumuh dan dihuni dengan berbagai penduduk dengan status sosial dan mata pencaharian yang sangat beragam sehingga menjadikan Kelurahan Semanggi sebagai kampung yang memiliki tingkat kriminalitas tinggi dan kurang tertata. Namun, Kelurahan Semanggi juga memiliki beragam potensi yang dapat diunggulkan baik dari sisi sumber daya alam, sumber daya manusia, maupun budayanya. Oleh karena itu, agar dapat memanfaatkan potensi dan mengatasi permasalahan wilayah dengan tepat maka diperlukan upaya pemetaan potensi dan masalah di Kelurahan Semanggi. Metode yang digunakan meliputi pengumpulan data primer melalui wawancara dan observasi lapangan. Wawancara dilakukan dengan target narasumber yaitu setiap ketua RT dan/atau ketua RW di seluruh Kelurahan Semanggi yang memiliki pemahaman tentang kondisi wilayah di Kelurahan Semanggi. Selanjutnya, dilakukan observasi lapangan untuk mengetahui titik dan kondisi lokasi keberadaan potensi yang sudah disebutkan dari hasil wawancara dengan ketua RT dan/atau ketua RW. Berdasarkan hasil wawancara dan observasi lapangan tersebut, selanjutnya potensi yang ada akan dipetakan melalui aplikasi ArcMap untuk menghasilkan peta potensi Kelurahan Semanggi.
Analisis Blue Water Footprint pada Produksi Batik Mahkota dan Tekstil Afina di Kelurahan Laweyan, Surakarta
Authors: Kinanthi Asih , Sunarto Sunarto , Setiawan Fajar , Setyono Prabang , Rachmawati Siti
Published: April 2024

Water footprint assessment merupakan salah satu metode perhitungan kebutuhan penggunaan air yang dapat digunakan untuk mengevaluasi penggunaan air. Sektor industri batik dan tekstil menjadi kegiatan antropogenik yang membutuhkan banyak air dalam proses produksinya. Batik Mahkota dan Tekstil Afina merupakan contoh industri batik dan tekstil yang beroperasi di Kelurahan Laweyan. Tujuan penelitian adalah untuk mengetahui rangkaian proses produksi yang ada pada kedua industri tersebut, dan menghitung total kebutuhan air dalam proses produksi (blue water footprint) dari kedua industri yakni Batik Mahkota dan Tekstil Afina. Metode perhitungan yang dipakai adalah manual water footprint assessment Hoekstra 2011. Blue water footprint dari Batik Mahkota adalah sebesar 2,71 L/ m². Sedangkan Tekstil Afina memiliki blue water footprint sebesar dan 1,70 L/ m².
DPA-2: Towards a universal large atomic model for molecular and materials simulation
Authors: Wang Han , Zhang Duo , Liu Xinzijian , Zhang Xiangyu , Zhang Chengqian , Cai Chun , Bi Hangrui , Du Yiming , Qin Xuejian , Huang Jiameng , Li Bowen , Shan Yifan , Zeng Jinzhe , Zhang Yuzhi , Liu Siyuan , Li Yifan , Chang Junhan , Wang Xinyan , Zhou Shuo , Liu Jianchuan , Luo Xiaoshan , Wang Zhenyu , Jiang Wanrun , Wu Jing , Yang Yudi , Yang Jiyuan , Yang Manyi , Gong Fu-Qiang , Zhang Linshuang , Shi Mengchao , Dai Fu-Zhi , York Darrin , Liu Shi , Zhu Tong , Zhong Zhicheng , Lv Jian , Cheng Jun , Jia Weile , Chen Mohan , Ke Guolin , E Weinan , Zhang Linfeng
Published: April 2024

The rapid development of artificial intelligence (AI) is driving significant changes in the field of atomic modeling, simulation, and design. AI-based potential energy models have been successfully used to perform large-scale and long-time simulations with the accuracy of ab initio electronic structure methods. However, the model generation process still hinders applications at scale. We envision that the next stage would be a model-centric ecosystem, in which a large atomic model (LAM), pre-trained with as many atomic datasets as possible and can be efficiently fine-tuned and distilled to downstream tasks, would serve the new infrastructure of the field of molecular modeling. We show that DPA-2 can accurately represent a diverse range of chemical systems and materials, enabling high-quality simulations and predictions with significantly reduced efforts compared to traditional methods. Our approach paves the way for a universal large atomic model that can be widely applied in molecular and material simulation research, opening new opportunities for scientific discoveries and industrial applications.
Experimental study of Adsorption Performance on Single layer Desiccant Materials
Authors: Balthazar Pravinth , Hwa Yu Kok , Ismail Mohd Azmi
Published: April 2024

This paper presents an experimental study of the adsorption performance of a solid desiccant pack porous bed. Activated alumina, Desiccant clay, and Silica gel are arranged as single-layer desiccant beds. Experiments have been conducted under warm and humid climate conditions and for various Reynolds numbers between 5300 and 18600. Activated alumina, Silica gel, and Desiccant clay show 5.4, 4.6, and 3.4 times higher adsorption coefficients at Reynolds number 18,600 than at Reynolds number 5,300. The adsorption coefficient is inversely proportional to time and Reynolds number irrespective of climate conditions and desiccant materials. Silica gel adsorbed the highest humidity under warm, humid climate conditions compared to Activated alumina and Desiccant clay. However, Desiccant clay is the most energy-efficient moisture adsorption material for Reynolds numbers lower than 12000, and the contrary is applicable for Silica gel. Silica gels’ pressure drop is, on average, 29.6% and 51.9% higher than Activated alumina and Desiccant clay.
Soybean residues assisted g-C3N4/SiC photocatalyst prepared from waste materials: Synthesis, characterization, and application of tetracycline photodegradation irradiated with simulated sunlight
Authors: Dai Yung-Dun , Chou You-Lin , Hung Chung-Hsuang , Yuan Ching
Published: April 2024

This study employed the reproduced carbon black, waste silicon materials, and soybean residue to develop an environmentally friendly O-gC3N4/SiC composite photocatalyst and evaluated the corresponding photodegradation performance of tetracycline (TC). Initially, the reproduced carbon black was soaked in nitric acid to eliminate impurities, which resulted in the lowest ash content (7.86%). Soybean residue is a vital replacement for melamine during the preparation of graphitic carbon nitride. The characteristics of the synthesized SiC, O-gC3N4, and O-gC3N4/SiC photocatalysts were verified through TEM, XRD, and Fourier-transform infrared spectroscopy. The characteristic wavelength of the O-gC3N4/SiC photocatalysts was 523–541 nm, indicating that visible light triggers the photocatalytic reaction. The composites of soybean residue and SiC enhanced TC degradation, resulting in the best degradation rate of 89.5% with an initial first-order reaction rate constant of 2.01 × 10− 2 1/min for O0.10M0.90SC5 photocatalysts. Free radical trapping experiments determined the electron holes (h+) and OH· as the primary free radicals responsible for TC degradation, whereas O2−· played a relatively minor role. A photodegradation mechanism for O-gC3N4/SiC was also proposed. The prepared O-gC3N4/SiC photocatalysts are promising candidates for sustainable applications.
miR-340-3p-modified bone marrow mesenchymal stem cell-derived exosomes inhibit ferroptosis through METTL3-mediated m6A modification of HMOX1 to promote recovery of injured rat uterus
Authors: Yang Fu , xiao bang , Zhu Yiqing , Liu Meng , Chen Meiting , Huang Chao , Xu Dabing , Wang Fang , Sun Shuhan , Huang Jinfeng , Sun Ningxia
Published: April 2024

Background
Ferroptosis is associated with the pathological progression of hemorrhagic injury and ischemia-reperfusion injury. According to our previous study, exosomes formed through bone marrow mesenchymal stem cells modified with miR-340-3p (MB-exos) can restore damaged endometrium. However, the involvement of ferroptosis in endometrial injury and the effect of MB-exos on ferroptosis remain elusive.
Methods
The endometrial injury rat model was developed. Exosomes were obtained from the supernatants of BMSCs and miR-340/BMSCs through differential centrifugation. We conducted RNA-seq analysis on endometrial tissues obtained from the PBS and MB-exos groups. Ferroptosis was induced in ESCs by treating them with erastin or RSL3, followed by treatment with B-exos or MB-exos. We assessed the endometrial total m6A modification level after injury and subsequent treatment with B-exos or MB-exos by methylation quantification assay. We performed meRIP-qPCR to analyze m6A modification-regulated endogenous mRNAs.
Results
We reveal that MB-exos facilitate the injured endometrium to recover by suppressing ferroptosis in endometrial stromal cells. The injured endometrium showed significantly upregulated N6-methyladenosine (m6A) modification levels; these levels were attenuated by MB-exos through downregulation of the methylase METTL3. Intriguingly, METTL3 downregulation appears to repress ferroptosis by stabilizing HMOX1 mRNA, thereby potentially elucidating the mechanism through which MB-exos inhibit ferroptosis in ESCs. We identified YTHDF2 as a critical m6A reader protein that contributes to HMOX1 mRNA degradation. YTHDF2 facilitates HMOX1 mRNA degradation by identifying the m6A binding site in the 3ʹ-untranslated regions of HMOX1. In a rat model, treatment with MB-exos ameliorated endometrial injury-induced fibrosis by inhibiting ferroptosis in ESCs. Moreover, METTL3 short hairpin RNA-mediated inhibition of m6A modification enhanced the inhibitory effect of MB-exos on ferroptosis in endometrial injury.
Conclusions
Thus, these observations provide new insights regarding the molecular mechanisms responsible for endometrial recovery promotion by MB-exos and highlight m6A modification-dependent ferroptosis inhibition as a prospective therapeutic target to attenuate endometrial injury.
Automated device for simultaneous photometry and electrophysiology in freely moving animals
Authors: De Corte Benjamin , Kim Youngcho , Heslin Kelsey , Freeman John , Simpson Eleanor , Parker Krystal , Balsam Peter
Published: April 2024

Photometry and electrophysiology are powerful tools for investigating brain-behavior relationships. Combining these techniques would allow us to ask previously un-addressable questions, such as how neuromodulators impact neuronal firing rates. Current options are highly limited—requiring a substantial loss in data-quality or severely restricting naturalistic-movement. These drawbacks arise from engineering-limits on devices that allow optically-tethered subjects to move freely. Here, we introduce a device that overcomes these challenges. Its automated orientation-tracking system allows subjects to move freely for multiple-hours with minimal supervision and without sacrificing data-quality. The device is modular and adaptable, being compatible with most recording systems and equipped for added functionality (e.g., optogenetics). To demonstrate its utility, we simultaneously tracked extracellular striatal dopamine and single-neuron firing as mice performed a reward-learning task. Mice showed excellent mobility, and we observed robust trial-by-trial correlations between striatal firing and dopamine signaling. This device provides a powerful tool that outperforms current commercial solutions.
HAD:A Prototype Of Dataflow Compute Architecture
Authors: Luo Qiuming , Zhao Wenjie , Wen Zhiwei , Xu Pengxiang , Du Haixin , Zheng Du
Published: April 2024

To investigate the features, implementation, and applications of data flow architecture, a novel dataflow computing system, HAD (Hardware Accelerated Dataflow), is proposed. This system enhances the traditional control flow processor by integrating a dataflow component.HAD introduces two specialized instructions to the RISC ISA and provides OS system calls for applications. Users can execute programs that adhere to the dataflow execution model on the system, enabling synchronization and mutual exclusion between processes through the inherent characteristics of dataflow computing.We further analyze how our dataflow computing can reduce the overhead of OS system calls for synchronization and mutual exclusion between processes.Lastly, we perform simulations using Verilator, implement the system on an FPGA device based on the RISC-V prototype architecture, and transplant a miniature operating system for it. We evaluate its performance using EPCC Microbenchmarks. The simulation and physical experiment results indicate that when the number of processes is substantial, the system exhibits a time reduction of up to 29\% compared to the traditional approach. The simulation results closely correspond to the actual outcomes.
Study the Sensing Properties of Gold, Silver, and Aluminium Coupling Plasmon Nano-Sphere and Homo-Dimers
Authors: Hadi E. M. , Naji R M , Khalee H. L. , Saadoon N. M. , Mohammed M. N. , Abdullah Thamer Adnan , Abdullah Oday
Published: April 2024

FDTD simulations are used to investigate the homo- dimer nanostructures as localized surface plasmon resonance when the predicted LSPR wavelengths of Ag, Au, and Al nanospheres in a homo-dimer arrangement are equated, the findings show that the Ag and Al homo-dimer exhibits a higher LSPR shift than the Au homo-dimer. Enhancements in intensity are brought about in the junction as a result of the interaction between the homo-dimer nanoparticle and it. It has been determined that the field enhancement for homo-dimer nanostructures composed of gold, silver, and aluminum has been compared, and theoretically, values in the visible range of DU.v-U.v. have been projected to be between 108 and 109.
Optimizing Thermoelectric Properties of PEDOT: PSS/Bi 2 Te 3 /reduced Graphene Oxide Ternary Composite Films for Energy Harvesting Applications
Authors: Rathi Vaishali , Singh Kamal , Parmar K. P.S. , Brajpuriya Ranjeet K. , Kumar Ashish
Published: April 2024

We present a notable improvement in the TE efficiency of PEDOT: PSS through the fabrication of composite films incorporating Bi2Te3 and rGO. A set of five PEDOT: PSS/Bi2Te3 /rGO ternary composite films samples, namely, (a) PEDOT: PSS (b) PEDOT: PSS /0.4BT% Bi2Te3 (c) PEDOt :PSS/0.4% Bi2Te3 /0.1% rGO (d) PEDOT: PSS /0.4% Bi2Te3 /0.2% rGO, and (e) PEDOT: PSS /0.4% Bi2Te3 /0.3% rGO, were used for investigations, Using XRD, Raman, SEM, and XPS the Structural property and morphological characterstics of the composite films were thoroughly examined. At ambient temperature, the 0.1 rGO ternary composite film exhibited the highest electrical conductivity of 18.21 Scm-1, Seebeck coefficient of 15.5 ΜvK-1, and a power factor of 11.39 μWm-1 K-2. This value represents 5-6 times more than pristine PEDOT: PSS film. The observed notable enhancements can be ascribed to the highly structured arrangement of PEDOT chains on the surface of rGO. This alignment is a result of the strong interfacial interaction between PEDOT: PSS and rGO, as well as the separation of PEDOT and PSS phases. The findings of this study present an apparent and promising route for the utilization of PEDOT: PSS in the field of most promising and high-efficient TE conversion process.
Co-creation of an evidence-based toolkit to facilitate communication on complementary medicine between conventional and complementary healthcare practitioners in the Netherlands
Authors: Mulder Louise TC , Busch Martine , Demmers Armelle , Wietmarschen Herman A van
Published: April 2024

Background: The Dutch health care system is in need for guidance and implementation of complementary care of which shared decision making, communication and referral between conventional and complementary care practitioners are major components. A Dutch quality register for complementary healthcare practitioners (RBCZ) was interested to adopt and implement an improved version of a communication toolkit developed in an earlier project. The aim of this study was to improve the communication and collaboration between member practitioners of RBCZ and conventional healthcare practitioners.
Methods: The set of communication tools was updated and expanded with new tools in a co-creation process with conventional and complementary healthcare practitioners in three field labs; Utrecht, Amsterdam and the north of the Netherlands. Thematic focus group discussions were held to define the content and implementation of the toolkit. A pragmatic evidence-based decision aid for the respective complementary care modalities was developed based on a literature assessment and Strength Of Recommendation Taxonomy (SORT) criteria.
Results The final evidence-based toolkit consisted of seven communication tools, covering the themes: getting to know each other, communication, frame letters, decision aid with evidence-based recommendations for 13 complementary therapies and 6 indications, and support for communication of the RBCZ members/professional associations and implementation.
Conclusions: The evidence-based toolkit will be made available to 25 professional associations covering over 9.500 complementary healthcare practitioners in the Netherland (RBCZ). The regional collaboration amongst complementary healthcare practitioners was strengthened as well as between complementary and conventional healthcare practitioners.
A second life for the crystallographic structure of Berenil-dodecanucleotide complex: a computational revisitation thirty years after its publication
Authors: Novello Gianluca , Dodaro Andrea , Menin Silvia , Cavastracci Chiara , Sturlese Mattia , Salmaso Veronica , Stefano Moro
Published: April 2024

This study revisits the pioneering work of Professor Neidle, and co-workers, on the crystal structure of complexes formed between groove binders and DNA sequences. The original research revealed a DNA-ligand complex consisting of a dodecanucleotide bound with Berenil [1,3-bis(4'-amidinophenyl)-triazene] an anti-trypanocidal drug. This article aims to delve deeper into the structural dynamics of this system, showcasing the role played by water molecules in stabilizing the interaction between the ligand and the DNA. With this work, we reevaluate the findings from the original crystallographic study by employing modern molecular dynamics techniques, including Supervised Molecular Dynamics (SuMD) for generating binding trajectories, Thermal Titration Molecular Dynamics for assessing unbinding events, and AquaMMapS to identify regions occupied by stationary water molecules. The study addresses a minor and a major groove binding mode and assesses their strength and specificity using TTMD simulations, generating unbinding trajectories. This comprehensive approach integrates the understanding of the interaction of this DNA-ligand complex, which originated with the valuable work of Professor Neidle, resulting in an in-depth insight into the pivotal role of water molecules with this DNA, a behavior detected and extendable even to other nucleic acid complexes.
Detecting PEGs in real-world cosmetic products using ToF-SIMS
Authors: Shen Yanjie , Son Jiyoung , Yu Xiao-Ying
Published: April 2024

Polyethylene glycols (PEGs) are used in industrial, medical, health care, and personal care applications. The cycling and disposal of synthetic polymers like PEGs pose significant concerns. Detecting and monitoring PEGs in the real world calls for immediate attention. This study unveils the efficacy of time-of-flight secondary ion mass spectrometry (ToF-SIMS) as a reliable approach for precise analysis and identification of reference PEGs and PEGs used in cosmetic products. By comparing SIMS spectra, we show remarkable sensitivity in pinpointing distinctive ion peaks inherent to various PEG compounds. Moreover, the employment of principal component analysis (PCA) effectively discriminates compositions among different samples. Notably, the application of SIMS two-dimensional (2D) image analysis visually portrays the spatial distribution of various PEGs as reference materials. The same is observed in authentic cosmetic products. The application of ToF-SIMS underscores its potential in distinguishing PEGs within intricate environmental context. ToF-SIMS provides an effective solution to studying emerging environmental challenges, offering straightforward sample preparation and superior detection of synthetic organics in mass spectral analysis. These features show that SIMS can serve as a promising alternative for evaluation and assessment of PEGs in terms of the source, emission, and transport of anthropogenic organics.
Kinematic performance-oriented tool orientation optimization for a hybrid machining robot in five-axis ball-end milling
Authors: Zhang Weijia , Shi Zikang , Ding Ye
Published: April 2024

Five-axis hybrid robots are more extensively used in the machining of complex parts,
owing to their high dynamic performance and flexible attitude adjustment. Ball-end milling is
widely used in sculptured surface machining. Tool orientations can be adjusted for higher machining
efficiency and better cutting performance. However, hybrid robots’ complex kinematic structures
raise challenges to tool orientation planning. To generate a smooth toolpath that has a good cutting
performance and satisfies all the geometric and mechanical constraints, a tool orientation
optimization model is presented. The weighted sum of the joint kinematic performance index and
the effective tool diameter indexes are taken as the objective function. By constructing the robot
workspace in advance, the computation in the generation of feasible tool orientation regions is
reduced. The feasible orientation regions are further simplified as linear inequality constraints which
are updated during iteration. In each iteration, the initial nonconvex optimization problem is locally
approximated by a convex problem and solved by quadratic programming (QP). Simulations and
experiments are conducted for validation of the proposed method.
Synergistic Effect of Chlorine and Reaction Parameter Effect on Addition of Sulphur to CNTs and Their use as Electrocatalysts for ORR and OER
Authors: Maboya Winny Kgabo , Maubane-Nkadimeng Manoko Stephina
Published: April 2024

Electrocatalysts with high activity towards both oxygen reduction and evolution reaction are desirable for metal-air batteries. However, most commercially used electrocatalysts result in sluggish kinetics for these oxygen reactions, and different catalysts are usually used for each oxygen reaction. The development of efficient electrocatalysts that can facilitate both reactions, with low overpotentials resulting in less energy consumption is desirable. Herein we report secondary data analysis for materials developed in our previous study, FeS2 electrocatalyst supported on chlorinated carbon nanotubes (ClCNTs) using chemicals that are not harsh chemicals and investigated its catalytic activity towards ORR and OER. FeS2 nanoparticles were produced by thermal annealing of ClCNTs in thiophene at different annealing temperatures. The effect of thiophene volume and reaction time on the growth of FeS2 nanoparticles was also evaluated. The size of FeS2 nanoparticles coated on the surface of ClCNTs increased with an increase in thermal annealing reaction time, and this reduced the catalytic activity of the materials. Whereas as the volume of thiophene was increased during the production of FeS2-loaded ClCNTs, no FeS2 nanoparticles were observed on the surface of the ClCNTs. ClCNTs annealed at 900 °C showed the greatest growth of FeS2 nanoparticles on their surface and provided the greatest enhancement of the ORR and OER activities, evidenced by the low Tafel slope of 63 mV/dec and low overpotential of 252 mV. The number of electrons involved during the reduction of oxygen was found to be 4, which means that the formation of water was favorable when using this electrocatalyst. In our previous study only, cyclic voltammetry was used to evaluate the electrocatalytic activity of the materials toward ORR.
Refinement of an Evidence-based Mobile Produce Market Intervention Toolkit: The Veggie Van Toolkit
Authors: Kasprzak Christina , Tirabassi Jill , Lally Anne , Novak Lianne , Lev Sam , Vermont Leah , Leone Lucia
Published: April 2024

Background
The Veggie Van (VV) is an evidenced based intervention for addressing food access disparities and is disseminated through an online toolkit. Toolkits should be continually evaluated to understand the barriers to knowledge translation and their effectiveness. Understanding the user experience of the VV toolkit is crucial to inform its refinement and ensure future implementation success and positive public health impact.
Methods
We conducted semi-structured interviews with representatives from established mobile market organizations and frequent toolkit users to understand their experience. We asked interviewees about their familiarity and utilization of the toolkit, experience navigating, feedback on specific content, comprehension of the evidence base, and feedback on training and technical assistance options. All interviews were recorded, transcribed, and memos were written for each interview to summarize the data. Memos were then analyzed in ATLAS.ti 8.0 qualitative software using a codebook of themes informed by the interview guide. Reports were generated for each code and used to summarize findings across all interviews.
Results
The majority of interviewees were previously familiar with the VV toolkit and had used it in their work or referred others to it. The toolkit was perceived to be thorough and well-done, but more appropriate for an organization starting a MM. Interviewees cited that the toolkit facilitated planning for markets and bolstered their legitimacy in conversations with stakeholders. Most could not accurately define the core tenets of the evidence base and it was unclear to what degree practitioners are implementing its practices. Many of the suggestions were related to improving content to be more specific and practice-based, offering a variety of recommendations rather than one, and including more case studies and resources from other MM organizations.
Conclusions
This evaluation provided valuable feedback on the perceptions and utility of our online toolkit as well as comprehension of the evidence base. Applying these findings to improve our toolkit will be integral to supporting implementation and ensuring the effectiveness of the intervention. Future evaluation should investigate which support tools are appropriate for more experienced practitioners, include objective measures (i.e., website analytics), and assess the proposed impact of our proposed toolkit changes.
TOP2DFVT: An Efficient Matlab Implementation for Topology Optimization based on the Finite-Volume Theory
Authors: Araujo Marcelo Vitor Oliveira , Júnior Arnaldo dos Santos , Filho Romildo dos Santos Escarpini , Lages Eduardo Nobre , Cavalcante Márcio André Araújo
Published: April 2024

The finite-volume theory has shown to be numerically efficient and stable for topology optimization of continuum elastic structures. The significant features of this numerical technique are the local satisfaction of equilibrium equations and the employment of compatibility conditions along edges in a surface-averaged sense. These are essential properties to adequately mitigate some numerical instabilities in the gradient version of topology optimization algorithms, such as checkerboard, mesh dependence, and local minima issues. Several computational tools have been proposed for topology optimization employing analysis domains discretized with essential features for finite-element approaches. However, this is the first contribution to offer a platform to generate optimized topologies by employing a Matlab code based on the finite-volume theory for compliance minimization problems. The Top2DFVT provides a platform to perform 2D topology optimization of structures in Matlab, from domain initialization for structured meshes to data post-processing. This contribution represents a significant advancement over earlier publications on topology optimization based on the finite-volume theory. In these earlier investigations, an efficient code was not provided. Furthermore, the Top2DFVT algorithm is based on the SIMP and RAMP material interpolation methods and employs sensitivity and density filters, leading to a more powerful tool. This algorithm is applied to some illustrative examples, demonstrating its effectiveness.
On Symplectically Harmonic Betti Numbers
Authors: Bynnud Shanborlang , Singh Angom Tiken
Published: April 2024

Brylinski introduced the symplectic analogue of harmonic forms on symplectic manifolds, thereby defining the symplectically harmonic cohomology space of a symplectic manifold. In this paper, we derive a formula for determining the sym-plectically harmonic Betti numbers of an arbitrary symplectic manifold of finite type, based on the dimensions of the kernels of the Lefschetz homomorphisms. Utilizing this formula, we compute the symplectically harmonic Betti numbers of a specific class of 4-dimensional symplectic manifolds, namely, McMullen-Taubes symplectic 4-manifolds, which includes the Kodaira-Thurston symplectic nilmanifold as a special case.
MSC Classification: 53D05 , 53D35 , 57R17 , 57K43
Unveiling the Influence of Social Networks on Technology Adoption and Entrepreneurial Triumph in Bangladesh
Authors: Mamun Shahriar
Published: April 2024

This study explores the complex relationship between social networks, the adoption of technology, and the achievement of business success. This research seeks to shed light on the processes by which social networks impact the adoption of technology among entrepreneurs and, in turn, enhance their success. This will be achieved via conducting thorough interviews and using theme analysis. The results highlight the importance of social capital, sharing of knowledge, and the structure of networks in influencing entrepreneurial choices and results in the digital era. Entrepreneurs use their social networks to access knowledge, resources, and possibilities for cooperation. They tap into the collective wisdom and assistance of their peers, mentors, and industry connections. Network diversity, centrality, and connection are important elements that significantly impact entrepreneurial choices and results. These qualities allow entrepreneurs to get access to valuable resources, establish strategic alliances, and position themselves effectively within entrepreneurial ecosystems. In addition, the emergence of digital platforms and online communities has fundamentally changed the way social networks operate, offering businesses unparalleled chances for worldwide connectedness and cooperation. Nevertheless, the presence of obstacles such as excessive information, biased algorithms, and privacy issues highlights the need of skillfully navigating digital networking sites. Practical implications are advocating for diversity and inclusion in business ecosystems, cultivating networking abilities via entrepreneurship education programs, and supporting active involvement with social networks among entrepreneurs. Moreover, potential areas for future study including longitudinal studies aimed at investigating the evolution of social networks over time, comparative studies conducted across various cultural settings, and interdisciplinary research endeavors focused on integrating knowledge from several domains. This research enhances our comprehension of how social networks influence the uptake of technology and the achievement of entrepreneurial goals in the digital era. It provides significant information for legislators, educators, ecosystem facilitators, and entrepreneurs.
Numerical Analysis of the Desktop CPU's Straight Heatsink via a CFD Simulation Method to Achieve the Optimum Heatsink
Authors: Dipu Md Nazmul Hasan , Apu Mahbub Hasan , Chowdhury Pritidipto Paul
Published: April 2024

The straight heat sink is one of the most common heat transfer components for desktop CPUs in order to manage the dissipation of heat generated by the microprocessor. The primary goal of this study was to find out the optimal straight heat sink, initially by investigating three different fin thicknesses and several fin numbers in order to get the global minimum microprocessor temperature situation for each of those three different fin thicknesses, and finally by considering the mass and temperature of the heat sink in each of those three critical situations in order to get the optimal one. The CFD simulation method was applied to analyze the present study. Solidworks® software was used for both creating CAD models and performing simulations. Initially, it was found that each of the three different fin thicknesses had a turning point at which the microprocessor’s temperature was at its minimum. Later, the weight of the heat sink was also measured at those turning points. Firstly, the heat sink, whose thickness was 1 mm, had a microprocessor temperature of about 83.52 degrees Celsius and a weight of 307.80 grams. Secondly, the heat sink, whose thickness was 1.5 mm, had a microprocessor temperature of about 86.50 degrees Celsius and a weight of 388.80 grams. Thirdly, the heat sink, whose thickness was 2mm, had a microprocessor temperature of about 89.60 degrees Celsius and weighs 448.2 grams. Therefore, the heat sink with less fin thickness was the best one under the criteria of minimum microprocessor temperature and minimum heat sink mass. Because an optimum heat sink—for studied model, fin thickness of 1mm and number of fins of 21—provides a panacea for minimum material cost, light weight, and minimum microprocessor temperature.
Forecasting Next-Time-Step Forex Market Stock Prices Using Neural Networks
Authors: Navaei Mahdi , Pahlevanzadeh Mostafa
Published: April 2024

Purpose:
This study aims to predict the closing price of the EUR/JPY currency pair in the forex market using recurrent neural network (RNN) architectures, namely Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU), with the incorporation of Bidirectional layers.
Methods:
The dataset comprises hourly price data obtained from Yahoo Finance and preprocessed accordingly. The data is divided into training and testing sets, and time series sequences are constructed for input into the models. The RNN, LSTM, and GRU models are trained using the Adam optimization algorithm with the mean squared error (MSE) loss metric.
Results:
Results indicate that the LSTM model, particularly when coupled with Bidirectional layers, exhibits superior predictive performance compared to the other models, as evidenced by lower MSE values.
Conclusions:
Therefore, it can be concluded that the LSTM model with Bidirectional layers is the most effective in predicting the EUR/JPY currency pair's closing price in the forex market. These findings offer valuable insights for practitioners and researchers involved in financial market prediction and neural network modeling.
Måleegenskaper ved den norske versjonen av ADHD Rating Scale – IV Hjemmeversjon (ADHD-RS-IV Hjemme)
Authors: Kornør Hege , Bøe Tormod
Published: April 2024

Beskrivelse: ADHD-RS-IV Hjemme er et spørreskjema som skal fylles ut av mor, far, verge eller besteforeldre for å fange opp ADHD-symptomer hos barn og ungdom. Spørreskjemaet har 18 ledd med fire svaralternativer. Det tar under 20 minutter å fylle ut. Hovedskalaen og de to delskalaene skåres ved å summere enkeltskårer. Kompetansekrav for bruk av ADHD-RS-IV inkluderer generell opplæring i testbruk, samt yrkesstatus som psykolog, lege, annet helsepersonell med utdanning på mastergradsnivå, spesialpedagog eller pedagog med mastergrad.
Litteratursøk: Vårt systematiske litteratursøk identifiserte fire publikasjoner fra fire norske studier.
Psykometri: Én studie med et mindre utvalg rapporterte Cronbahcs α=0,73, og test-retest intraklassekoeffisient (ICC)=0,95. Ingen av de inkluderte publikasjonene inneholdt dokumentasjon om normer eller validitet ved ADHD-RS-IV Hjemme.
Konklusjon: Den indre konsistensen i ADHD-RS-IV Hjemme var tilfredsstillende og test-retest reliabiliteten var svært god, men utvalgsstørrelsen var utilfredsstillende og tilfører disse målene stor usikkerhet. Normer og validiteten ved den norske versjonen av ADHD-RS-IV Hjemme er ikke dokumentert.
Måleegenskaper ved den norske versjonen av Brown Attention-Defict Disorder Scales for Children and Adolescents, 3-7 år (Brown ADD Scales 3-7)
Authors: Bøe Tormod , Hysing Mari
Published: April 2024

Beskrivelse: Brown ADD Scales (3-7) er et instrument som kartlegger et bredt spekter av ADHD-symptomer, samt funksjonsnedsettelse i eksekutive funksjoner som antas å være relatert til ADHD, hos barn i førskolealder. Instrumentet er utviklet av Tomas E. Brown, og det foreligger en offisiell norsk oversettelse gjort av Tone M. Anderssen tilgjengelig fra Pearson Assessment. Instrumentet kan benyttes som et intervju med foreldre/foresatte, men også brukes som et spørreskjema når det administreres til skole-/førskolelærere. Instrumentet har 44 ledd og kan gjennomføres på mindre enn 30 minutter. Kompetansekrav for bruk av Brown ADD Scales (3-7) er generell opplæring i testbruk, samt yrkesstatus som psykolog.
Litteratursøk: Det systematiske litteratursøket identifiserte ingen publikasjoner som tilfredsstilte inklusjonskriteriene.
Psykometri: Ingen av de inkluderte publikasjonene inneholdt dokumentasjon om de psykometriske egenskapene ved den norske versjonen av Brown ADD Scales (3-7).
Konklusjon: De psykometriske egenskapene ved den norske versjonen av Brown ADD Scales (3-7) er ikke dokumentert.
Functionalized Crumpled Graphene as Nanocatalysts for Organophosphate Neutralization
Authors: Santos Yane , Hostert Leandro , Almeida Thiago , Zarbin Aldo , Souza Victor , Orth Elisa
Published: April 2024

Organophosphates are prevalent in agrochemicals and chemical warfare agents, posing significant health and safety concerns. These compounds are known for their high chemical stability and to address this issue, nucleophilic catalysts have emerged as a promising solution for their degradation. Herein, we focus on a novel material created through the combined effects of imidazole and crumpled graphene (CG) to develop a nanocatalyst for the neutralization (i.e., degradation) of organophosphates (OPs). The strategy involves the covalent functionalization of CG with imidazole groups without disrupting the three-dimensional structure of CG. This unique combination results in a synergistic effect between neighboring imidazole groups within CG, significantly enhancing the catalytic performance. The catalytic increment (kCAT/kH2O) achieved is in the order of 104 , demonstrating the remarkable efficiency of this catalyst. The pioneering and promising use of functionalized CG for addressing concerns with chemical security can boost and be broadened to other applications.
Putative Inhibitor of TcCYP51 from a Library of Approved Drugs: A Virtual Screening Study
Authors: Flores-Junior Luiz Augusto , dos Santos Eldio , Muri Estela Maris , Lima Camilo Henrique , Dias Luiza Rosaria
Published: April 2024

Chagas disease is a public health problem, particularly in Latin America. The available treatment consists of two poorly effective drugs in the chronic phase of this parasitic disease. Considering the lack of effective treatment, alternatives are sought, such as the search focused on the biological targets of the etiologic agent. Based on this strategy, the role of Trypanosoma cruzi sterol 14α-demethylase (TcCYP51) in ergosterol seems promising. In this work, we apply the virtual screening approach to a proposal to repurpose U.S. Food and Drug Administration (FDA)-approved drugs. We combined computational techniques and used rigorous validation to identify putative inhibitors from the FDA-approved drug library. The results indicated one of these drugs as a putative inhibitor of the TcCYP51 enzyme.
Post-COVID-19 Cognitive Dysfunction: Methodological Foundations for Prevention and Correction Model
Authors: Solodukhin Anton V. , Seryy Andrey V. , Varich Lidiia A.
Published: April 2024

The article introduces a comprehensive review of theoretical and experimental studies in the field of psychophysiological predictors of cognitive impairments in post-COVID-19 patients. The data obtained made it possible to design a model of psychological correction and prevention of post-COVID-19 cognitive dysfunction. This condition affects cognitive, behavioral, and psycho-emotional areas of mental activity. Functional changes involve poor mobility of nervous processes and short attention span, as well as changes in coping behavior and personality characteristics. Unlike older patients, teenagers experience fewer consequences for cardiovascular system and cognitive functions. As for gender differences, men restored their cognitive functions better when they came to grasp with their past experience. For women, recovery was associated with life meaning, planning, and goal setting. The resulting model for the prevention and psychological correction of post-COVID-19 cognitive dysfunction integrated the principles of systemic, information, cognitive, and personality-oriented approaches. It consisted of several structural elements that made it possible to support COVID-19 patients through all treatment stages, i.e., psychodiagnostics, psychocorrection, psychotherapy, and social and lifestyle adaptation.
Emotional Well-Being of Preschoolers in Extreme Climatic and Geographical Conditions by Means of Ecological and Psychological Support
Authors: Kalashnikova Irina V. , Belogai Ksenia N.
Published: April 2024

Emotional well-being of preschool children that live in extreme climatic conditions is difficult to maintain. Emotional well-being is a basis of psychological health that manifests itself as positive emotional states in social environment. It presupposes a stable emotional sphere when interacting with the world, low anxiety, emotional comfort, and adequate self-esteem. Climatic and geographical factors of the Russian Arctic may inhibit the development of the emotional well-being in preschool children. However, some psychological and pedagogical conditions may neutralize the negative impact of environmental factors. They include psycho-emotional monitoring, flexible school interior, and health-saving technologies in the academic process. The authors developed a model of ecological and psychological support for preschool children living in polar regions. It is based on interaction with plants and animals as a source of positive emotions. The model of environmental and psychological support for emotional well-being of preschoolers living in the Russian Arctic justifies the feasibility of health-saving technologies as part of an active cooperation between a preschool institution and a botanical garden.
WHOLE-BODY VIBRATION EFFECT ON MUSCLE ACTIVATIONS: WHICH ONE IS THE MOST EFFECTIVE, LOW FREQUENCY OR HIGH FREQUENCY?
Authors: Ecemiş Zeynep Berfu , Tor Ömer Burak , Çobanoğlu Gamze , Suner-keklik Sinem , Kafa Nihan , Atalay Güzel Nevin
Published: April 2024

Purpose: Whole Body Vibration (WBV) is a practice that passively applies mechanical oscillations to an individual from a support surface. The tonic vibration reflex response depends on the vibration localization, frequency, amplitude, and initial length of the muscle, but there is no consensus on what the optimal frequency should be. This study was conducted to examine the activation differences of lower extremity muscles at low and high frequencies during squat exercise on WBV.
Methods: This study involved 16 healthy individuals (Age = 23.66 ± 2.33 years, Body Mass Index= 22.59 ± 3.86 kg/m2). WBV application was performed on a vertical vibration platform (GLOBUS Physioplate®). Participants performed static half-squats on WBV for 20 seconds under vibrating (20 Hz and 60 Hz; 2-3 mm amplitude) conditions. An 8-channel Electromyography (EMG) Noraxon MiniDTS system was used to measure the activation of the Gluteus Medius (GMed), Gluteus Maximus (GMax), Vastus Lateralis (VL), and Vastus Medialis (VM) muscles.
Results: It was observed that there was a difference between the two frequencies for the activation of the VM, VL, and GMed muscles (p = 0.004, 0.001, 0.002, respectively). Vibration frequencies of GMed, VL, and VM muscle activities at high frequency were increased compared to low frequency. GMax did not show any statistically significant change between the two vibration conditions (p=0.013).
Conclusions: Physiotherapists and trainers should prefer high frequencies in WBV applications, especially when they need to improve the neuromuscular response in the quadriceps and gluteus medius muscles.
SEX DIFFERENCE IN ABSOLUTE AND NORMALIZED FORCE AT FOUR DIFFERENT ISOMETRIC CONTRACTION INTENSITIES
Authors: Lım Wootaek
Published: April 2024

Purpose: When measuring isometric contractions, providing real-time visual feedback differs from the practices in general clinical environment. In addition, even though men and women have clear physical and physiological differences, most of the existing studies analyzed absolute muscle contractions with no distinction between men and women. The aim of this study was to investigate whether there are differences in absolute and normalized hip extension forces measured without visual feedback between men and women.
Methods: Twenty-eight healthy adults participated (13 men and 15 women; age=- 22.00±11.44 years; height=165.86±18.30 cm; and weight=61.91±12.34 kg) in the study. Maximum (MVC) and submaximal voluntary contraction forces (75%, 50%, and 25% of MVC, in a random order) of hip extension were measured using a wireless strain gauge and with no visual feedback.
Results: Absolute contraction forces measured at four target intensities were significantly greater in men (p
Literasi Media Televisi Kepada Ibu Rumah Tangga Dalam Pendampingan Menonton Anak
Authors: Lisahidah Aulia , Fitriawati Diny , Hasim Hasim , Taufik Cevi Mochamad
Published: April 2024

Abstract: The development of media is now increasingly rapid, information, entertainment and so on are increasingly accessible. However, in this digital era, television media still exists and is still quite popular with the public. The influence of television shows can be seen in children, one of them is early childhood where they can get new vocabulary from the shows they watch. with the right assistance, of course, this will have a positive impact on children. Assistance can also be done if parents, especially mothers, understand the importance of media literacy. The purpose of this research is to find out the knowledge of housewives in Cisumur Village about why mentoring children when watching television is very important, then how the mentoring process is carried out. The method used in this research is a descriptive qualitative approach. The descriptive qualitative approach is intended to reveal and describe how media literacy is helpful in selecting television programs for housewives. The results of this study indicate that the knowledge of housewives about why it is important to accompany children when watching television is quite good, and can practice or realize this knowledge so that there is a mentoring process carried out. However, mothers have not been able to make rules for viewing schedules, so that many of their children whose daily lives are only occupied with watching television.