bluuebunny/crossref_metadata_2025 huggingface dataset:
Protein and fat intake impact on growth of primary school girls in Kerman, Iran
Authors: Jannati Nooshin , Mahmoodi Mohammad Reza , Azadbakht Leila
Published: July 2024

The school age period is characterized by significant physical and intellectual growth, necessitating the monitoring of macronutrient intake and its impact on weight and height. The objective of this study is to investigate the association between the quality and quantity of protein and fat consumption with anthropometric indices in primary school girls in Kerman. This cross-sectional analysis was conducted on primary school girls aged 6–12 (n 330) from ten schools in Kerman, Iran. A validated and reliable dish-based 185-item food frequency questionnaire was used. We calculated the amount of proteins and fats as the percentage of daily calories and grams per day. Plant-based and animal-based proteins were used to assess the protein quality. To assess the fat quality, we considered trans fatty acids (TFA), cholesterol, vegetable oils, solid vegetable oils, animal oils, omega-6 Polyunsaturated fatty acids (PUFAs), omega-3 PUFA, and (PUFAs + Monounsaturated fatty acids (MUFAs))/Saturated fatty acids (SFAs), PUFAs/SFA, and (MUFA + PUFA)/(SFA + TFA). There was a significant positive association between height-for-age z-score (HAZ) and plant protein (p < 0.001) and vegetable oils (p = 0.038) after adjustment. In higher tertiles of animal protein, weight-for-age z-score (WAZ) (p = 0.024) were significantly higher. A significant positive association was observed between omega-3 PUFA and mid-upper arm circumference (MUAC) (p = 0.039) and BMI-for-age z-score (BAZ) (p = 0.016). Our study emphasizes the importance of monitoring protein and fat intake in primary school girls for optimal growth. Positive associations were found between plant-based protein, vegetable oils and HAZ, as well as animal protein and WAZ, highlighting the impact of protein quality on growth indicators.
Dexamethasone treatment influences tendon healing through altered resolution and a direct effect on tendon cells
Authors: Dietrich-Zagonel Franciele , Alim Md Abdul , Beckman Leo Bon , Eliasson Pernilla
Published: July 2024

Inflammation, corticosteroids, and loading all affect tendon healing, with an interaction between them. However, underlying mechanisms behind the effect of corticosteroids and the interaction with loading remain unclear. The aim of this study was to investigate the role of dexamethasone during tendon healing, including specific effects on tendon cells. Rats (n = 36) were randomized to heavy loading or mild loading, the Achilles tendon was transected, and animals were treated with dexamethasone or saline. Gene and protein analyses of the healing tendon were performed for extracellular matrix-, inflammation-, and tendon cell markers. We further tested specific effects of dexamethasone on tendon cells in vitro. Dexamethasone increased mRNA levels of S100A4 and decreased levels of ACTA2/α-SMA, irrespective of load level. Heavy loading + dexamethasone reduced mRNA levels of FN1 and TenC (p < 0.05), while resolution-related genes were unaltered (p > 0.05). In contrast, mild loading + dexamethasone increased mRNA levels of resolution-related genes ANXA1, MRC1, PDPN, and PTGES (p < 0.03). Altered protein levels were confirmed in tendons with mild loading. Dexamethasone treatment in vitro prevented tendon construct formation, increased mRNA levels of S100A4 and decreased levels of SCX and collagens. Dexamethasone during tendon healing appears to act through immunomodulation by promoting resolution, but also through an effect on tendon cells.
Bioimpedance analysis for identifying new indicators of exercise-induced muscle damage
Authors: Yamaguchi Shota , Inami Takayuki , Ishida Hiroyuki , Nagata Naoya , Murayama Mitsuyoshi , Morito Akihisa , Yamada Satoshi , Kohtake Naohiko
Published: July 2024

A noninvasive, immediate, and convenient method for assessing muscle tissue status during exercise-induced muscle damage (EIMD) has not been established. This study was designed to assess and determine parameters suitable for measuring EIMD after eccentric exercise, using multi-frequency bioimpedance analysis (BIA). Thirty-five young male participants performed dumbbell exercises with their left arm, and their BIA parameters were measured at various time points up to 168 h post exercise using a multi-frequency BIA device. At all-time points, intra and extracellular water content was greater in the left arm than in the right arm, whereas the impedance, reactance, resistance, and phase angle were lower in the left arm than in the right arm. Established EIMD indices, such as maximal isometric voluntary contraction, were measured and used in correlational analyses. Only reactance was correlated with biomarkers, indicating muscle damage (r =  − 0.56 to − 0.49). Furthermore, reactance was found to correlate well with indirect indicators of EIMD, suggesting that it may be a suitable marker for evaluating EIMD. However, the relationship with the limited evaluation indices employed in this study is constrained. Future studies should investigate the correlation between reactance and direct damage indicators, such as structural damage, observed in biopsies.
Integrative network analysis of miRNA-mRNA expression profiles during epileptogenesis in rats reveals therapeutic targets after emergence of first spontaneous seizure
Authors: Khemka Niraj , Morris Gareth , Kazemzadeh Laleh , Costard Lara S. , Neubert Valentin , Bauer Sebastian , Rosenow Felix , Venø Morten T. , Kjems Jørgen , Henshall David C. , Prehn Jochen H. M. , Connolly Niamh M. C.
Published: July 2024

Epileptogenesis is the process by which a normal brain becomes hyperexcitable and capable of generating spontaneous recurrent seizures. The extensive dysregulation of gene expression associated with epileptogenesis is shaped, in part, by microRNAs (miRNAs) – short, non-coding RNAs that negatively regulate protein levels. Functional miRNA-mediated regulation can, however, be difficult to elucidate due to the complexity of miRNA-mRNA interactions. Here, we integrated miRNA and mRNA expression profiles sampled over multiple time-points during and after epileptogenesis in rats, and applied bi-clustering and Bayesian modelling to construct temporal miRNA-mRNA-mRNA interaction networks. Network analysis and enrichment of network inference with sequence- and human disease-specific information identified key regulatory miRNAs with the strongest influence on the mRNA landscape, and miRNA-mRNA interactions closely associated with epileptogenesis and subsequent epilepsy. Our findings underscore the complexity of miRNA-mRNA regulation, can be used to prioritise miRNA targets in specific systems, and offer insights into key regulatory processes in epileptogenesis with therapeutic potential for further investigation.
A hybrid finite-discrete element method for modelling cracking processes in sandy mudstone containing a single edge-flaw under cyclic dynamic loading
Authors: Zhang Xiaolong , Xu Wenjie , Zhang Xiaoping , Yu Yan , Xu Chong
Published: July 2024

Rock mass deformation and failure are macroscopic manifestations of crack initiation, propagation, and coalescence. However, simulating the transition of rocks from continuous to discontinuous media under cyclic dynamic loading remains challenging. This study proposes a hybrid finite-discrete element method (HFDEM) to model crack propagation, incorporating a frequency-dependent cohesive-zone model. The mechanical properties of standard sandy mudstone under quasi-static and cyclic dynamic loading were simulated using HFDEM, and the method's reliability was verified through experimental comparison. The comparative analysis demonstrates that HFDEM successfully captures crack interaction mechanisms and accurately simulates the overall failure behavior of specimens. Additionally, the effects of pre-existing flaw inclination angle and dynamic loading frequency on rock failure mechanisms were investigated. The numerical results reveal that rock samples exhibit significantly higher compressive strength under dynamic loading compared to quasi-static loading, with compressive strength increasing with higher cyclic dynamic load frequencies. Furthermore, by analyzing the strength characteristics, crack propagation, and failure modes of the samples, insights into the failure mechanisms of rocks under different frequency loads were obtained. This study provides valuable insights into crack development and failure of rocks under seismic loads, offering guidance for engineering practices.
Valence photoelectron imaging of molecular oxybenzone
Authors: Tsizin Svetlana , Ban Loren , Chasovskikh Egor , Yoder Bruce L. , Signorell Ruth
Published: July 2024

An oxybenzone molecule in the gas phase was characterized by mass spectrometry and angle-resolved photoelectron spectroscopy, using both single and multiphoton ionization schemes.
Integration of a recyclable silver substrate for in situ surface-enhanced Raman spectroscopy in digital microfluidics
Authors: Fehse Sebastian , Das Anish , Belder Detlev
Published: July 2024

Utilizing the photocatalytic activity of silver nanoparticles at titanium dioxide for recycling SERS substrate integrated on an automated digital microfluidics chip.
Organosiloxane membranes for heavy aromatic oil fractionation
Authors: Ma Liang , Hou Min , Wang Yuemei , Tong Weiyi , Zheng Junlin
Published: July 2024

Organosiloxane membranes were fabricated on porous polyacrylonitrile supports by a UV crosslinking method, and exhibited excellent organic solvent nanofiltration separation performance towards the actual aromatic industrial feedstock.
Catalytic enantioselective [3+2] and [4+2]-annulation of cyclic N-sulfonyl ketimines with γ- or δ-hydroxy-α,β-unsaturated ketones
Authors: Yang Ji Seon , Kim Sung-Gon
Published: July 2024

A highly efficient asymmetric [3+2] and [4+2]-annulation of cyclic N-sulfonyl ketimines with γ- or δ-hydroxy-α,β-unsaturated ketones has been developed.
Why are nH-perfluoroalkanoate ions more mobile than expected? Implications for identifying an emerging environmental pollutant
Authors: Jobst Karl J. , Penney Chloe , Burgers Peter C.
Published: July 2024

Ion mobility experiments reveal that nH-PFCAs have relatively small collision cross sections compared to their perfluorinated analogues. Theory and experiment agree that this is because nH-PFCA ions undergo internal hydrogen bridging.
Stepwise construction of a metallocatenane based on non-labile bis(terpyridine)-CdII complexes
Authors: Wang Shih-Yu , Lin Lin-Ting , Rani Alisha , Lee Guan-Sian , Chan Yi-Tsu
Published: July 2024

A non-labile bis(terpyridine)-CdII complex was designed, synthesized, and utilized for the construction of an array of metlloligands through multiple reactions, eventually leading to the successful quantitative self-assembly of a metallocatenane.
Constructing layered structure amidine-based pentazolate salts with low sensitivity
Authors: Wang Pengfei , Liu Lile , Sun Zebang , Qin Feng , Shi Lei , Gao Chao , Du Yang , Zhang Chong , Hu Bingcheng , Sun Chengguo
Published: July 2024

A series of layered structure, low sensitivity cyclo-N5− salts based on amidine were synthesized.
An efficient method to establish electrostatic screening lengths of restricted primitive model electrolytes
Authors: Forsman Jan , Ribar David , Woodward Clifford E.
Published: July 2024

We present a novel, and computationally cheap, way to estimate electrostatic screening lengths from simulations of restricted primitive model (RPM) electrolytes.
Mechanistic insights into high-throughput screening of tandem catalysts for CO2 reduction to multi-carbon products
Authors: Liu Yingnan , Wang Dashuai , Yang Bin , Li Zhongjian , Zhang Tao , Rodriguez Raul D. , Lei Lecheng , Hou Yang
Published: July 2024

Systematic screening of 80 tandem catalysts from a mechanistic perspective for the efficient reduction of CO2 into multi-carbon products.
Recent progress in energy-saving electrocatalytic hydrogen production via regulating the anodic oxidation reaction
Authors: Gao Taotao , An Qi , Tang Xiangmin , Yue Qu , Zhang Yang , Li Bing , Li Panpan , Jin Zhaoyu
Published: July 2024

This review focuses on the recent progress in energy-saving electrocatalytic hydrogen production via coupling the HER with the thermodynamically favorable anodic oxidation reactions.
A first-principles alternative to empirical solvent parameters
Authors: Gregory Kasimir P. , Wanless Erica J. , Webber Grant B. , Craig Vincent S. J. , Page Alister J.
Published: July 2024

This manuscript presents a new first principles solvent parameter that unifies the myriad empirical solvent parameters used throughout chemistry.
Reaction kinetics of lithium–sulfur batteries with a polar Li-ion electrolyte: modeling of liquid phase and solid phase processes
Authors: Bacon Simon , Babar Shumaila , Dent Matthew , Foster Allan , Baboo Joseph Paul , Zhang Teng , Watts John F. , Lekakou Constantina
Published: July 2024

A multipore continuum liquid–solid phase model is fitted to determine the Li–S battery reactions constants with carbonate electrolyte. Solubility experiments are conducted. Li+ ion diffusivity is determined in semisolid medium from MD simulations.
Insights into the role of the H-abstraction reaction kinetics of amines in understanding their degeneration fates under atmospheric and combustion conditions
Authors: Shang Yanlei , Luo S. N.
Published: July 2024

H-abstraction reactions of amines play crucial roles in understanding their degeneration fates under both atmospheric and combustion conditions.
Structure of small yttrium monoxide clusters, chemical bonding, and photoionization: threshold photoionization and density functional theory investigations
Authors: Deshpande Varun Vinayak , Chauhan Vaibhav , Bandyopadhyay Debashis , Anoop Anakuthil , Bhattacharyya Soumen
Published: July 2024

The photoionization (PI) spectra of small gas-phase yttrium monoxide clusters, YnO (n = 1–8), are investigated, and the adiabatic ionization energies are determined.
Insight into the synthesis of LDH using the urea method: morphology and intercalated anion control
Authors: Di Michele Alessandro , Boccalon Elisa , Costantino Ferdinando , Bastianini Maria , Vivani Riccardo , Nocchetti Morena
Published: July 2024

Control of the interlayer composition and morphology of LDH by proper choice of salt, nitrate or chloride and the amount of urea.
Phosphate selective binding and sensing by halogen bonding tripodal copper(ii) metallo-receptors in aqueous media
Authors: Bagha Hena , Hein Robert , Lim Jason Y. C. , Myers William K. , Sambrook Mark R. , Beer Paul D.
Published: July 2024

Hydrophilic halogen bonding (XB) tripodal copper(ii) metallo-receptors are demonstrated to selectively recognise and sense inorganic phosphate over a range of other monocharged anionic species in a competitive aqueous solution containing 40% water.
Construction of hierarchical In2O3/In2S3-ZnCdS ternary microsphere heterostructures for efficient photocatalytic nitrogen fixation
Authors: Huang Liangliang , Peng Tao , Wang Rui , He Beibei , Jin Jun , Wang Huanwen , Gong Yansheng
Published: July 2024

In2O3/In2S3-ZCS photocatalyst proved to be highly efficient in converting N2 to NH3 under mild conditions, eliminating the need for sacrificial agents or precious metal catalysts.
Advanced tetracyclic heat-resistant energetic materials based on bis(4-nitropyrazole) bridged 1,2,4-triazole
Authors: Chen Luyao , Hu Wei , Lei Caijin , Zhu Teng , Li Chengchuang , Tang Jie , Cheng Guangbin , Xiao Chuan , Yang Hongwei
Published: July 2024

An advanced tetracyclic heat-resistant explosive compound 3 with high thermal stability and good detonation performance was prepared by introducing a high-energy bis(4-nitropyrazole) bridge between two 4H-1,2,4-triazole-3,4-diamine frameworks.
Process intensified lauric acid self-ketonization and its economic and environmental impact on biolubricant base oil production
Authors: Goculdas Tejas , Yuliu Zhifei , Sadula Sunitha , Zheng Weiqing , Saha Basudeb , Nanduri Arvind , Ierapetritou Marianthi , Vlachos Dionisios G.
Published: July 2024

Intensified lauric acid self-ketonization and its impact on biolubricant base oil production.
Cycloaddition–dehydration continuous flow chemistry for renewable para-xylene production from 2,5-dimethylfuran and ethylene over phosphorous-decorated zeolite beta
Authors: Wang Zhaoxing , Goculdas Tejas , Hsiao Yung Wei , Fan Wei , Vlachos Dionisios G.
Published: July 2024

Continuous manufacturing of platform chemicals from lignocellulose is highly desirable for a fossil fuel independent future.
Enhancement of the electrochemical properties of vanadium dioxide via nitrogen-doped reduced graphene oxide for high-performance supercapacitor applications
Authors: Sarr Samba , Bakhoum Daba T. , Sylla Ndeye F. , Ndiaye Ndeye M. , Tarimo Delvina J. , Maphiri Vusani M. , Ngom Balla D. , Manyala Ncholu
Published: July 2024

Vanadium dioxide nitrogen-doped reduced graphene oxide (V@XN-G) was successfully synthesized using a one-step solvothermal approach. The nitrogen-doping greatly enhances the electrochemical performance of the pristine vanadium dioxide.
[3+2] Cycloaddition mediated synthesis of spirooxindole pyrrolidine/piperidine fused chromene aldehyde derivatives: DFT studies, antibacterial evaluation and molecular docking investigation as DNA gyrase inhibitors
Authors: Panda Jasmine , Raiguru Bishnu Prasad , Nayak Sabita , Mohapatra Suhasini , Mohapatra Seetaram , Rout Saiprakash , Mohanty Pranay , Biswal Himansu Sekhar , Bhattacharya Debdutta , Sahoo Chita Ranjan
Published: July 2024

A series of diverse 2′-oxo-6b,7,8,9-tetrahydro-6H-spiro[chromeno[3,4-a]pyrrolizine-11,3′-indoline]-6a(11aH)-carbaldehyde derivatives are synthesized and antibacterial evaluation is done along with computational studies.
Facile formation of tetrazole–thiolato Pd(ii) and Pt(ii) complexes through deprotonation or oxidative addition using organic tetrazole–thiones
Authors: Kwon Hyoung Soon , Park Geon Hyeong , Ju Huiyeong , Lee Eunji , Kim Yong-Joo
Published: July 2024

Reactions of M(ii) and M(0) (M = Pd, Pt) complexes with organic tetrazole–thiones afford corresponding various mono or bis(tetrazole–thiolato) M(ii) and unusual cyclometallated M(ii) complexes via deprotonation or oxidative addition.
Design, synthesis, and structural evaluation of metal complexes of azepane-1-carbodithioate for targeting human breast cancer: investigating cytotoxic activity against the MDA-MB-231 cell line
Authors: Jaiswal Shubham , Rai Nilesh , Chandra Suryansh , Verma Ashish , Gautam Vibhav , Adhikari Manu , Singh Sanjay , Bharty M. K.
Published: July 2024

In this article, we have reported the synthesis and structural characterization of complexes containing Co(iii), Cu(ii), Zn(ii), and Hg(ii) metal cations.
Probing surface interactions in CdSe quantum dots with thiocyanate ligands
Authors: Deshmukh Samadhan H. , Yadav Sushma , Chowdhury Tubai , Pathania Akhil , Sapra Sameer , Bagchi Sayan
Published: July 2024

Our study explores quantum dots, specifically CdSe, using FTIR and 2D-IR spectroscopy. Findings reveal surface passivation of SCN− ions. Combined with computational calculations, these insights impact quantum dots' performance optimization.
Embedding AIE-type Ag28Au1 nanoclusters within ZIF-8 for improved photodynamic wound healing through bacterial eradication
Authors: He Qiuxia , Jiang Zhen , Jiang Hongli , Han Songjie , Yang Guoping , Yuan Xun , Zhu Haiguang
Published: July 2024

A photodynamic antibacterial agent was created by encapsulating Ag28Au1 NCs in ZIF-8. This agent can eliminate 97.7% of E. coli and 91.6% of S. aureus within 5 minutes under light, promoting effective healing of bacteria-infected wounds.
Infrared color-sorting metasurfaces
Authors: Chen Guanghao , Zhou Junxiao , Chen Li , Tian Fanglin , Liu Zhaowei
Published: July 2024

High efficiency metasurface-enabled infrared multispectral achromatic color-sorting was achieved via an automated photonic design. Overall transmission efficiency exceeded 57% with angular dispersion reduced by over 90%.
Vat photopolymerization using catalytic chain transfer polymerization (CCTP) derived reactive oligomers to influence mechanical properties
Authors: Lee Wai Hin , Wan Zhongyuan , Shegiwal Ataulla , Haddleton David
Published: July 2024

ω-Vinyl terminated reactive oligomers of 2-ethylhexyl methacrylate and poly(ethylene glycol)methacrylate (PEGMA) were synthesized via CCTP and subsequent addition–fragmentation chain transfer (AFCT) polymerization.
A self-enhanced chemiexcited PDT system for targeted and efficient treatment of deeply seated tumors
Authors: Da Xuwen , Xu Yunli , Wang Lei , Liu Xiulian , Peng Yatong , Wu Yao , Zhou Wanpeng , Wang Wentao , Wang Xuesong , Zhou Qianxiong
Published: July 2024

NP3 with H2O2 supplementation and self-enhanced chemiexcited PDT system are developed, exhibiting efficient chemiexcited PDT activity towards subcutaneously implanted and lung metastatic tumors, providing new insights for development of novel chemiexcited PDT.
Quinoidal π-extension of dipyranylidene derivatives: towards efficient dopants for n-type organic semiconductors
Authors: Matsuo Takaya , Kawabata Kohsuke , Takimiya Kazuo
Published: July 2024

Quinoidal π-extended dipyranylidene derivatives, 2,2′,6,6′-tetraphenyl-4,4′-(cyclohexa-1,4-diene-3,6-diylidene)dipyran (DP8) and its tetrakis(dimethylamino) derivative (DP9), were newly synthesized and characterized.
5-Aminoisophthalate-based kojic acid-appended bis-1,2,3-triazole: a fluorescent chemosensor for Cu2+ sensing and in silico study
Authors: Kumar Sachin , Lal Bajrang , Singh Gurleen , Muskan  , Tittal Ram Kumar , Singh Jandeep , Vikas D. Ghule , Sharma Renu
Published: July 2024

A new, easy-to-prepare, and highly selective 5-aminoisophthalate and kojic acid linked bis-1,2,3-triazole chemosensor was synthesized from an alkyne of 5-aminoisophthalic acid and azido-kojic acid by CuAAC reaction and fully characterized.
Defect-induced formation and frustration-driven multiple magnetic transitions in Gd2Co0.90Si2.90
Authors: Kundu Mily , Pakhira Santanu , Gupta Shuvankar , Choudhary Renu , Sarkar Sourav , Lakshminarasimhan N. , Ranganathan R. , Mandal Kalyan , Johnson Duane D. , Mazumdar Chandan
Published: July 2024

A new non-stoichiometric ternary compound, Gd2Co0.90Si2.90, has been synthesized in single phase by introducing vacancies in the Co and Si sites. A spin-glass type of ground state is observed due to frustration and disorder.
SRG/eROSITA 3D mapping of the interstellar medium using X-ray absorption spectroscopy
Authors: Gatuzz E. , Wilms J. , Zainab A. , Freund S. , Schneider P. C. , Robrade J. , Czesla S. , García J. A. , Kallman T. R.
Published: July 2024

We present a detailed study of the hydrogen density distribution in the local interstellar medium (ISM) using the X-ray absorption technique. Hydrogen column densities were precisely measured by fitting X-ray spectra from coronal sources observed during the initial eROSITA all-sky survey (eRASS1). Accurate distance measurements were obtained through cross-matching Galactic sources with the third Gaia data release (DR3). Despite the absence of a discernible correlation between column densities and distances or Galactic longitude, a robust correlation with Galactic latitude was identified. This suggests a decrease in ISM material density in the vertical direction away from the Galactic plane. We have also investigated the relation between the optical extinction and the hydrogen column density. To do so, we employed multiple density laws to fit the measured column densities, revealing constraints on height scale values (9 < hz < 14 pc). Unfortunately, radial scales and the central density remain unconstrained due to the scarcity of sources near the Galactic center. Subsequently, a 3D density map of the ISM was computed using a Gaussian process approach, inferring hydrogen density distribution from hydrogen column densities. The results unveil the presence of multiple beams and clouds of various sizes, indicative of small-scale structures. High-density regions were identified at approximately 100 pc, consistent with findings in dust-reddening studies, and are potentially associated with the Galactic Perseus arm or the local bubble. Moreover, high-density regions were pinpointed in proximity to the Orion, Chameleon, and Coalsack molecular complex, enriching our understanding of the intricate structure of the local ISM.
Progenitor mass and ejecta asymmetry of supernova 2023ixf from nebular spectroscopy
Authors: Ferrari Lucía , Folatelli Gastón , Ertini Keila , Kuncarayakti Hanindyo , Andrews Jennifer E.
Published: July 2024

Context. Supernova (SN) 2023ixf was discovered in the galaxy M 101 in May 2023. Its proximity provided the scientific community an extremely valuable opportunity to study the characteristics of the SN and its progenitor. A point source detected on archival images and hydrodynamical modeling of the bolometric light curve have been used to constrain the former star’s properties. There is a significant variation in the published results regarding the initial mass of the progenitor. Nebular spectroscopy can be used to enhance our understanding of the SN and its progenitor.

Aims. We determined the SN progenitor mass by studying the first published nebular spectrum, taken 259 days after the explosion.

Methods. We analyzed the nebular spectrum taken with GMOS at the Gemini North Telescope. We identified typical emission lines, such as [O I], Hα, and [Ca II], among others. Some species’ line profiles show broad and narrow components, indicating two ejecta velocities and an asymmetric ejecta. We inferred the progenitor mass of SN 2023ixf by comparing its spectra with synthetic spectra and by measuring the forbidden oxygen doublet flux.

Results. Based on the flux ratio and the direct comparison with spectra models, the progenitor star of SN 2023ixf had a MZAMS between 12 and 15 M⊙. We find that using the [O I] doublet flux provides a less tight constraint on the progenitor mass. Our results agree with those from hydrodynamical modeling of the early light curve and pre-explosion image estimates that point to a relatively low-mass progenitor.
Recycling of spent electric vehicle (EV) batteries through the biohydrometallurgy process
Authors: Satriadi Teguh , Winarko Ronny , Chaerun Siti Khodijah , Minwal Wahyudin Prawira , Mubarok Mohammad Zaki
Published: July 2024

Lithium-ion batteries constitute a primary component of electric vehicles (EV). The proliferation of EV on a global scale is expected to result in a rise in the quantity of spent EV batteries. The spent EV batteries comprise various heavy metals that possess a higher content than naturally available ores. These metals are valuable and have the potential to adversely affect the environment and human health if not managed appropriately. Conventional recycling techniques, such as pyrometallurgical and hydrometallurgical processes, have proven to be effective in the recovery of precious metals from used EV batteries. These techniques are used to recycle wasted EV batteries. Nonetheless, it should be noted that these processes are associated with a considerable cost, require high levels of energy consumption, present challenges in terms of regulation, and produce byproducts that can be classified as secondary pollutants. Biohydrometallurgy is a component of the discipline of hydrometallurgy that is widely recognized or thought of as an ecologically friendly and cost-effective extraction metallurgical technique as an alternative of extracting and recovering valuable metals from spent EV batteries. This approach involves the utilization of microorganisms. The present study employs a consortium of microorganisms comprising fungi, chemolithotrophic bacteria, mixotrophic bacteria, and acidophilic bacteria. These microorganisms have demonstrated their proficiency in metal recovery by generating acids and biosurfactants and utilizing ferrous ions and sulfur as energy sources. This article presents a review of biohydrometallurgical techniques as potential strategies for cost-effective and environmentally friendly technologies for the recycling of spent EV batteries. These techniques encompass the fundamental principles of biohydrometallurgy, in addition to the roles that microbes play in biohydrometallurgy.
Failure behavior of 70/30 brass lattice structure with a proposed cell topology produced by rapid investment casting
Authors: Nugraha Arya Aditya , Korda Akhmad Ardian
Published: July 2024

Lattice structures are unique architectural configurations with repeated unit cells and significant void spaces, offering exceptional specific strength, stiffness, and energy absorption capacity. These properties make them ideal for lightweight structures and mechanical dampers. Rapid investment casting, a blend of investment casting and 3D printing, emerges as a promising method for metal lattice structure production. It outperforms typical metal additive manufacturing, yielding products with fewer defects. A proposed cell topology has been introduced, striking an optimal balance between printability, castability, tensile strength, and shear strength. To explore its performance under compressive loading, 70/30 brass lattice structures with two varying heights were fabricated using rapid investment casting and evaluated. Shorter samples displayed uniform expansion within each cell row, while taller ones experienced abrupt shear fractures, resulting in lower absorbed energy. Detailed microstructure observations and additional mechanical properties were obtained, enhancing the understanding of failure behavior. In conclusion, rapid investment casting combined with the proposed cell topology opens exciting possibilities for manufacturing high-performance lattice structures with improved mechanical characteristics.
Application of Nano Material (ZrO2) In Corrosion Resistance of Rebar
Authors: Sathia R. , Sharadhalakshmi V.S. , Gokul  , Mohetraj S.
Published: July 2024

For the attainment of least amount of rate of corrosion, different percentages of nano particle ZrO2 is added to epoxy to give a neat coating. The optimum dosage of ZrO2 is found out in order to control the rate of corrosion of rebar embedded in concrete. The composite coated, i.e, nanoZrO2 and epoxy coated specimens are placed in alkaline medium, namely 5% NaCl solution. The rate of corrosion readings were noted down using the reference electrode (calomel) and voltmeter. The rate of flow of current is proportional to rate of corrosion. The readings were noted down over a period of time; 0th day, 1st week, 2nd week, 3rd week and 4th week ; to have a clear idea about the extent of corrosion taking place in the alkaline medium. The optimum percentage of nanoZrO2 to be was found out to be 2%. The test also comprise of evaluating the bond strength between the rebar’s and concrete with that of control specimen.
Enhancement of lateral load carrying capacity of a pile incorporating fins – a parametric study
Authors: Hariswaran S. , Amaravathy U. , Puviarasu S. , Jayasurya J.
Published: July 2024

Infra-structure plays a vital role in the development of the country. Such growth directly or indirectly forces the engineers to construct the structures like high rise buildings, bridges, underground utilities, dams, etc. effectively focussing the sustainability and effective utilization of time and money. To design such structures, it is much needed to have an effective plan of design and selection of suitable techniques to execute. The load from the super structure will be transferred through the structural element called foundation. The load from the superstructure is high or the subsoil having a low bearing capacity, pile foundation is generally recommended. During the process of execution, there will be a chance of occurrence of defects in the pile such as necking or bulging. The defect in the pile may affect the load transferring mechanism and load carrying capacity. Occurrence of defects in the cast-in-situ concrete pile can be accessed through non-destructive field testing. As there are no established guidelines available to consider such defective piles, engineers go for construction of new piles instead of taking risk. From the extensive literature review, it was observed that the top onethird portion of the pile has more impact on reduction in capacity due to the existence of defects. This research focused to study the behaviour of the laterally loaded defective (necking) pile incorporating the fins around the pile using the finite element analysis software PLAXIS 3D V20 Connect Edition. The results confirm the enhancement of lateral load carrying capacity of defective pile encased with fins up to the top one-third portion. The outcome of this study helps the engineers to utilize the defective pile with the recommended incorporation of pile casing with fins.
Utilization of Waste Aggregate for Aggregate Construction for Improvement of Soil Bearing Capacity
Authors: Mohd Pauzi Nur Irfah , Ghiasi Vahed , Razzi Ibrahim , Mat Radhi Mohd Shahril
Published: July 2024

Soil bearing capacity is one of the important elements when designing the foundation, bridges, and embankment. The soil bearing capacity needs to be improved due to the weak soil such as clayey silt or silty clay soil that was encountered at the construction site. There are many stabilizations method such as bio treatment of the subgrade, chemical stabilization method, chemical grouting or injection systems, aggregates, or reuse of the waste materials, geosynthetic reinforced embankment and vibro compaction. One of the most common chemical stabilization methods is by using additives to improve soil strength. There are a few wastes material that can be used for strengthening clay soil which is more economic and environmentally friendly. The objective of this research is to improve the soil engineering parameters and bearing capacity using Recycled Waste Aggregates (RWA). In this study, soil samples will be added with different percentage weight of RWA and undergo a few series of laboratory experiments to study its behavior which will be sieve analysis, specific gravity, compaction, and California Bearing Ratio (CBR). The optimization of the percentage of recycled concrete aggregates can be determined from the simulation method. For bearing capacity value, the increase of bearing capacity greatly increases as the percentage of RCA increased and the optimum percentage of RCA is 15%. It concluded that the increasing value of RCA will improve the strength and soil subgrade structures. Recycled Concrete Aggregates have a really great potential material to be used in engineering.
A State-of-the-Art Review of Hydronic Asphalt Solar Collector Technology for Solar Energy Harvesting on Road Pavement
Authors: Beddu Salmia , Ahmad Mushtaq , Mohd Kamal Nur Liyana , Mohamad Daud , Itam Zarina , Min Yee Hooi , Ahmad Zailani Warid Wazien
Published: July 2024

Nature inspires innovative renewable energy solutions by advancing our road pavements, as the sun is the only infinite and accessible source of clean and green energy on our planet. In addition to the various solar energy production methods, a new paradigm for utilizing asphalt pavement as a solar collector is being developed for self-powered energy harvesting. Due to direct solar radiation, flexible paved surfaces exposed to direct sunlight can heat up to 70°C in the summer. The heat is then dissipated into the environment, causing the urban heat island effect, and accelerating thermal oxidation of asphalt pavement. This can lead to structural failure and reduced pavement performance. This study aims to present a state-of-the-art review of hydronic asphalt solar collectors (HASCs) and propose the best model to enhance the performance of asphalt solar collectors. The findings of the study concluded that asphalt has the potential to absorb solar energy and store heat energy. This can be achieved by assembling and modifying conventional asphalt structures into modern asphalt solar collector designs that consist of pipe arrangements below the paved surface filled with liquid flowing through the pavement surface. The study found that a significant limitation of previous research was that it focused on optimizing the temperature profile at various depths but did not focus on structural improvements to reduce failure and increase the performance of asphalt solar collectors. Therefore, this review study proposed a new technique of using conductive and waste materials to enhance the performance of asphalt solar collectors.
BDAE: A Blockchain-Based and Decentralized Attribute-Based Encryption Scheme for Secure Data Sharing
Authors: YANG Shuangxi
Published: July 2024

Ciphertext-policy attribute-based encryption (CP-ABE) is widely employed for secure data sharing and access control. However, its dependence on a single authority introduces security and performance challenges. Despite the existence of multi-authority CP-ABE approaches, persistent issues such as single points of failure and high computation cost on the user side remain. This study proposes a novel solution named blockchain-based and decentralized attribute-based encryption (BDAE) for data sharing. BDAE enhances traditional scheme by integrating blockchain and distributed key generation technology. The scheme employs an (n, t) threshold secret sharing algorithm, coupled with the Pedersen verifiable secret sharing method, for attribute key generation. This combination ensures key credibility, facilitates joint attribute management, and addresses single bottleneck and key verification issues. Integrated into a blockchain system, the scheme utilizes smart contracts for fine-grained access control and outsourced computing. Blockchain's decentralization and access logs make data sharing tamper-resistant and auditable. Moreover, simulation comparisons demonstrate that the scheme effectively reduces decryption overhead on the user side, meeting practical application requirements.
Asymptotic Behavior of Singular Solution to the
k-Hessian Equation with a Matukuma-Type Source
Authors: LIU Jinyu , WANG Biao , CHANG Caihong
Published: July 2024

This paper is concerned with radially positive solutions of the [see formula in PDF]-Hessian equation involving a Matukuma-type source [see formula in PDF], where [see formula in PDF] is the [see formula in PDF]-Hessian operator, [see formula in PDF], and [see formula in PDF] is a suitable bounded domain in [see formula in PDF]. It turns out that there are two different types of radially positive solutions for [see formula in PDF], i.e., M-solution (singular at [see formula in PDF]) and E-solution (regular at [see formula in PDF]), which is distinct from the case when [see formula in PDF]. For [see formula in PDF], we apply an iterative approach to improve accuracy of asymptotic expansions of M-solution step by step to the desired extend. In contrast to the case [see formula in PDF], we require a more precise range of parameters due to repeated application of Taylor expansions, which also makes asymptotic expansions need more delicate investigation.
Control and Stabilization of Chaotic System Based on Linear Feedback Control Method
Authors: WEI Xingmin , LI Dekui
Published: July 2024

In this paper, two kinds of chaotic systems are controlled respectively with and without time-delay to eliminate their chaotic behaviors. First of all, according to the first-order approximation method and the stabilization condition of the linear system, one linear feedback controller is structured to control the chaotic system without time-delay, its chaotic behavior is eliminated and stabilized to its equilibrium. After that, based on the first-order approximation method, the Lyapunov stability theorem, and the matrix inequality theory, the other linear feedback controller is structured to control the chaotic system with time-delay and make it stabilized at its equilibrium. Finally, two numerical examples are given to illustrate the correctness and effectiveness of the two linear feedback controllers.
Lehre bereichert und verbindet – das Praxissemester
Authors: Sander Elisa
Published: July 2024

Die Osteopathie entwickelt sich in ihrer Bedeutung und Qualität stetig weiter.
Mit ihrer steigenden Popularität und zunehmenden Integration in die deutsche
Medizinlandschaft ist es von großer Bedeutung, die Ausbildung angehender
Osteopathen zu verbessern. Die Hürden, die jener Verbesserung und
Weiterentwicklung im Wege stehen, sind unterschiedlich. Teilweise lassen sich
die Schwierigkeiten auf eine fehlende staatliche Vereinheitlichung der
Ausbildungskriterien zurückführen, teilweise auf philosophische und soziale
Faktoren, die es zu ändern gilt. Angehende Osteopathen und erfahrene Osteopathen
können von einer Zusammenarbeit profitieren und somit die Qualität der
Osteopathie im Sinne der Patienten stetig gemeinsam verbessern.
Silver-Catalyzed Dearomative [3+2] Spiroannulation of Aryl Oxamic Acids with Alkynes
Authors: Liang Ren-Xiao , Jin Cheng-An , Jia Yi-Xia
Published: July 2024

A silver-catalyzed dearomative decarboxylative [3+2] spiroannulation of aryl oxamic acids with alkynes is described. The reaction provides reliable access to a range of azaspiro[4,5]trienones in moderate yields in aqueous media. In addition, the reaction exhibits a broad substrate scope and good functional group compatibility.
Hereditary Colorectal Cancer: From Diagnosis to Surgical Options
Authors: Aoun Rami James N. , Kalady Matthew F.
Published: July 2024

Hereditary colorectal cancer (CRC) syndromes account for up to 5% of CRC. Patients have an increased risk of CRC and extracolonic cancers, both of which develop at an early age. The main polyposis syndromes include familial adenomatous polyposis, MYH-associated polyposis, Peutz-Jeghers syndrome, juvenile polyposis syndrome, and PTEN hamartoma syndrome. The non-polyposis syndromes include Lynch syndrome and familial colorectal cancer type X. Each of the syndromes have distinct but sometimes overlapping phenotypes. Clinical evaluation and ultimately the underlying germline genetic pathogenic variants define the syndromes. Each syndrome has polyp, CRC, and extracolonic risks and management is based on early and timely surveillance with therapeutic and often extended prophylactic surgery. Surgical intervention strategies are individualized, considering not only the earlier onset of malignancies and heightened risks for metachronous cancers but also the patient's needs and quality of life. This article reviews the different diagnostic approaches to hereditary CRC and highlights subsequent disease-specific management and surgical decision-making strategies.
Cross-border banking and bank stability: evidence from Sub-Saharan Africa
Authors: Gondwe Sopani , Gwatidzo Tendai , Mahonye Nyasha
Published: July 2024

Based on bank-level data from 29 Sub-Saharan African countries between 2005 and 2019, we apply panel fixed effects (FE) and two-step system GMM estimators to investigate whether increased cross-border banking affects domestic banking sector stability. We find significant evidence that the stability of banks in host countries declines with an increased presence of foreign banks—and the impact is more pronounced on banks that are small and less efficient. The stability impact of foreign banks is also found to depend on the quality of governance institutional factors in the host country. The findings shed some important insights on the downside of financial liberalisation policy in developing countries and the need for increased cross-border collaboration between home and host supervisory authorities in the SSA region—especially in jurisdictions where the foreign bank affiliates are systemically important. The domestic supervisory authorities thus need to effectively manage the inherent trade-off between reaping the benefits from international financial integration while effectively safeguarding domestic banking systems against cross-border contagion and fragility.
Decoupling of rotation and translation at the colloidal glass transition
Authors: Geiger John , Grimm Niklas , Fuchs Matthias , Zumbusch Andreas
Published: July 2024

In dense particle systems, the coupling of rotation and translation motion becomes intricate. Here, we report the results of confocal fluorescence microscopy where simultaneous recording of translational and rotational particle trajectories from a bidisperse colloidal dispersion is achieved by spiking the samples with rotational probe particles. The latter consist of colloidal particles containing two fluorescently labeled cores suited for tracking the particle’s orientation. A comparison of the experimental data with event driven Brownian simulations gives insights into the system’s structure and dynamics close to the glass transition and sheds new light onto the translation–rotation coupling. The data show that with increasing volume fractions, translational dynamics slows down drastically, whereas rotational dynamics changes very little. We find convincing agreement between simulation and experiments, even though the simulations neglect far-field hydrodynamic interactions. An additional analysis of the glass transition following mode coupling theory works well for the structural dynamics but indicates a decoupling of the diffusion of the smaller particle species. Shear stress correlations do not decorrelate in the simulated glass states and are not affected by rotational motion.
Enhancing biomethane yield from food waste through surfactant-assisted mechanical pretreatment: An optimization approach
Authors: Eniyan M. C. , Edwin M. , Banu J. Rajesh
Published: July 2024

In the present investigation, the response surface methodology-based central composite design (RSM-CCD) was used to model the potential of improving the solubilization of food waste through surfactant-assisted homogenization pretreatment (SAHP). RSM-CCD models were investigated based on homogenization speed and time for HP, surfactant dosage, and homogenization time at optimized homogenization speed by HP for SAHP input parameters and chemical oxygen demand (COD) solubilization (CODsol) as response parameters. HP optimum condition was 7020 rpm, 9.9 min to attain 11.6% solubilization with 292.8 kJ/kg total solid (TS) specific energy consumption (ESp). On the other hand, 19.9% CODsol was obtained in the SAHP under optimum conditions of 6.3 μl and 3.7 min, with ESp of 116.2 kJ/kg TS, respectively. The CODsol increment and ESp decrease by 176.2 kJ/kg TS indicate the significance of combined pretreatment and synergistic action of surfactant. Eventually, the maximum biomethane generation was found in SAHP as 67 ml/gCOD, higher than that of HP (40 ml/gCOD) and without pretreatment samples (17 ml/gCOD), respectively.
Influence of cholesterol on hydrogen-bond dynamics of water molecules in lipid-bilayer systems at varying temperatures
Authors: Shikata Kokoro , Kasahara Kento , Watanabe Nozomi Morishita , Umakoshi Hiroshi , Kim Kang , Matubayasi Nobuyuki
Published: July 2024

Cholesterol (Chol) plays a crucial role in shaping the intricate physicochemical attributes of biomembranes, exerting a considerable influence on water molecules proximal to the membrane interface. In this study, we conducted molecular dynamics simulations on the bilayers of two lipid species, dipalmitoylphosphatidylcholine (DPPC) and palmitoyl sphingomyelin; they are distinct with respect to the structures of the hydrogen-bond (H-bond) acceptors. Our investigation focuses on the dynamic properties and H-bonds of water molecules in the lipid-membrane systems, with a particular emphasis on the influence of Chol at varying temperatures. Notably, in the gel phase at 303 K, the presence of Chol extends the lifetimes of H-bonds of the oxygen atoms acting as H-bond acceptors within DPPC with water molecules by a factor of 1.5–2.5. In the liquid-crystalline phase at 323 K, on the other hand, H-bonding dynamics with lipid membranes remain largely unaffected by Chol. This observed shift in H-bonding states serves as a crucial key to unraveling the subtle control mechanisms governing water dynamics in lipid-membrane systems.