bluuebunny/crossref_metadata_2025 huggingface dataset:
Molecularly imprinted polymer-coated hybrid optical waveguides for sub-aM fluorescence sensing
Authors: Xu Yingying , Zhou Yingtao , Luo Hong , Li Hao , Ni Tiancheng , Xu Gongjie , Sugihara Okihiro , Xie Jingya , Cai Bin
Published: December 2023

By controlling the refractive index between the MIP sensing layer and the hybrid waveguide, the propagating light can be efficiently confined in the MIP layer for detection, resulting in a sub-aM detection limit in fluorescence detection.
Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) in label-free characterization of erythrocyte membranes and extracellular vesicles at the nano-scale and molecular level
Authors: Stepanenko Tetiana , Sofińska Kamila , Wilkosz Natalia , Dybas Jakub , Wiercigroch Ewelina , Bulat Katarzyna , Szczesny-Malysiak Ewa , Skirlińska-Nosek Katarzyna , Seweryn Sara , Chwiej Joanna , Lipiec Ewelina , Marzec Katarzyna M.
Published: December 2023

Chemical characterization of extracellular microvesicles (REVs) and isolated membranes derived from red blood cells (RBCs) was carried out in a non-destructive and label-free manner with surface-enhanced Raman spectroscopy (SERS) and tip-enhanced Raman spectroscopy (TERS).
Trace analysis of steroid hormones in tear films via liquid chromatography-high resolution mass spectrometry
Authors: Huang Zhu
Published: December 2023

In this study, we developed an ultra-performance liquid chromatography-quadrupole-Orbitrap mass spectrometry (UPLC-Q-Orbitrap-MS) method for the analysis of seven steroid hormones in human tears.
Highly efficient electrochemical detection of H2O2 utilizing an innovative copper porphyrinic nanosheet decorated bismuth metal–organic framework modified electrode
Authors: Balasubramaniyan Nandha Gopal , Perumal Panneerselvam
Published: December 2023

The Bi-BTC-Cu-TCPP/GCE is used to determine the presence of H2O2 in biological samples.
Peptide coupling using recyclable bicyclic benziodazolone
Authors: Uehara Daigo , Adachi Sota , Tsubouchi Akira , Okada Yohei , Zhdankin Viktor V. , Yoshimura Akira , Saito Akio
Published: December 2023

This study provides a greener peptide coupling method using triarylphosphine and recyclable bicyclic benziodazolone, which acts as an oxidant for phosphine as well as base.
Hollow cubic ternary PdCuB nanocage electrocatalysts with greatly enhanced catalytic performance for formic acid oxidation
Authors: Yang Fu-Kai , Fang Yue , Gong Bing-Tao , Qu Wei-Li , Deng Chao , Wang Zhen-Bo
Published: December 2023

Hollow PdCuB nanocage catalyst was prepared by oxidation etching and wet chemistry methods, which exhibited excellent catalytic performance for FAOR.
Highly selective pressure-dependent (transfer) hydrogenative depolymerization of polybutylene succinate
Authors: Johnson Mary L. , Fine Rachel L. , Stankowski Dakota S. , Koch Casey A. , Limoges Kylie A. , Robertson Nicholas J.
Published: December 2023

Ru-MACHO®-BH catalyzes a novel transfer hydrogenation depolymerization of polybutylene succinate to gamma-butyrolactone at low pressures. High pressure hydrogen converts the system to a hydrogenative depolymerization.
Ester hydrogenolysis via β-C–O bond cleavage catalysed by a phenanthroline-based PNNP-cobalt(i) complex
Authors: Zhang Heng , Shimoyama Yoshihiro , Nakajima Yumiko
Published: December 2023

Hydrogenolysis of benzyl benzoate derivatives via β-C–O cleavage was achieved with atmospheric pressure H2 using a Co(i) catalyst bearing a phenanthroline-based PNNP ligand (2,9-bis((diphenylphosphanyl)methyl)-1,10-phenanthroline).
Contrasting reactivity of B–Cl and B–H bonds at [Ni(IMes)2] to form unsupported Ni-boryls
Authors: Audsley Gabrielle , Carpentier Ambre , Pécharman Anne-Frédérique , Wright James , Roseveare Thomas M. , Clark Ewan R. , Macgregor Stuart A. , Riddlestone Ian M.
Published: December 2023

Whilst the oxidative addition of B–Cl bonds at [Ni(IMes)2] forms unsupported Ni-boryls the corresponding B–H bonds do not react via oxidative addition. Computational studies show that this is due to a fundamental change in mechanism.
Revealing the elevation of Zn2+ in the brain of depressed mice by a ratiometric fluorescent probe with dual near-infrared emissions
Authors: Jin Haobin , Ju Can , Duan Chenxu , Zhang Ningwen , Cao Yongyong , Xia Qineng , Zhou Jin , Gao Shumei , Wang Yangang , Huang Hong
Published: December 2023

A new ratiometric fluorescent probe for Zn2+ with dual emissions both located in the near-infrared region was reported.
Impact of loop length and duplex extensions on the design of hybrid-type G-quadruplexes
Authors: Jana Jagannath , Vianney Yoanes Maria , Weisz Klaus
Published: December 2023

A deliberate design of loop and flanking sequences enables the rational engineering of specific G-quadruplex folds.
Supramolecular nanosheet formation-induced photosensitisation mechanism change of Rose Bengal dye in aqueous media
Authors: Bunno Asuka , Shigemitsu Hajime , Yoshikawa Aya , Osakada Yasuko , Fujitsuka Mamoru , Ishiwari Fumitaka , Saeki Akinori , Ohkubo Kei , Mori Tadashi , Kida Toshiyuki
Published: December 2023

An amphiphilic Rose Bengal dye-based supramolecular nanosheet was fabricated, elucidating a distinct change in the photosensitization mechanism.
CRISPR-Cas12a-enhanced mass spectrometric DNA nanomachine for HPV-16 detection in human serum
Authors: Hu Yueli , Liu Liwei , Wang Chaoqun , Zhou Jing , Liu Rui , Lv Yi
Published: December 2023

Amplified by CRISPR-Cas12a and DNA nanomachines, the sensitive detection of HPV-16 in human serum was performed using mass spectrometry.
NiFe-LDH/g-C3N4 binary heterostructures with 2D/2D configuration for highly efficient photocatalytic degradation of antibiotics and hydrogen production
Authors: Jia Yujie , Jiang Shuhan , Ou Qianchen , Liu Yanan , Zhang Jian , Zhou Yangjie , Lian Yuan , Wang Hongmei
Published: December 2023

2D/2D NiFe-LDH/g-C3N4 (LDH/CN) type II heterostructure is prepared, and its photocatalytic activity is evaluated by the degradation of tetracycline hydrochloride (TC) and hydrogen production.
Prediction of a two-dimensional high Curie temperature Weyl nodal line kagome semimetal
Authors: Li Jie , Wang Xiao-Tian , Chen Ya-Qing , Wei Yu-Hao , Yuan Hong-Kuan , Tian Chun-Ling
Published: December 2023

Kagome lattices may have numerous exotic physical properties, such as stable ferromagnetism and topological states.
First principles simulations of MgO(100) surface hydration at ambient conditions
Authors: Sassi Michel , Rosso Kevin M.
Published: December 2023

Developing a better understanding of water ordering and hydroxylation at oxide mineral surfaces is important across a breath of application spaces.
Melting of a single ice microparticle on exposure to focused near-IR laser beam to yield a supercooled water droplet
Authors: Hashimoto Shuichi , Uwada Takayuki
Published: December 2023

Micro-Raman spectroscopy revealed the laser-heating-induced melting of ice microparticles resulting in supercooled liquid droplet. Confinement using a water–air interface as a heat-insulated wall enabled particle temperatures above the melting point.
A thorough mechanistic study of ethanol, acetaldehyde, and ethylene adsorption on Cu-MOR via DFT analysis
Authors: Ma Yuli , Lang Junyu
Published: December 2023

A comprehensive study combining the density functional theory and ab initio thermodynamic analysis was conducted to unravel the adsorption mechanisms of ethanol, acetaldehyde, and ethylene on various copper-modified mordenite configurations.
Recent advances in Pd-catalyzed asymmetric cyclization reactions
Authors: Xu Bing , Wang Quanpu , Fang Chao , Zhang Zhan-Ming , Zhang Junliang
Published: December 2023

This review aims to collect advancements in enantioselective palladium-catalyzed cyclization reactions over the past eleven years, and it is organized into thirteen sections depending on the different types of transformations involved.
Rare earth oxide based electrocatalysts: synthesis, properties and applications
Authors: Jiang Yong , Fu Hao , Liang Zhong , Zhang Qian , Du Yaping
Published: December 2023

The synthesis, properties and applications of rare earth oxide based electrocatalysts in electrocatalysis reactions.
Bio-based hyperbranched epoxy resins: synthesis and recycling
Authors: Jiang Yu , Li Jiang , Li Dan , Ma Yunke , Zhou Shucun , Wang Yu , Zhang Daohong
Published: December 2023

This review provides a comprehensive overview of the synthesis, degradation, and recycling of bio-based hyperbranched epoxy resins.
Stimuli-responsive synthetic helical polymers
Authors: Lago-Silva María , Fernández-Míguez Manuel , Rodríguez Rafael , Quiñoá Emilio , Freire Félix
Published: December 2023

Synthetic dynamic helical polymers (supramolecular and covalent) and foldamers share the helix as a structural motif.
Effect of ZnO nanoparticle application on crop safety and soil environment: a case study of potato planting
Authors: Zhang Haoyue , Zhao Xiaohan , Bai Junrui , Tang Mengshan , Du Wei , Lv Zhiyuan , Siddique Kadambot H. M. , Mao Hui
Published: December 2023

A low dose of ZnO NPs improved potato growth and quality. However, the short-term exposure of high-dose ZnO NPs poses certain ecological risks.
Photocatalysis as a green alternative toolkit for the construction of nitrogen-enriched heterocycles via the direct and indirect activation of alkynes/alkenes
Authors: Das Anupam , Gouthaman Siddan , Justin Thomas K. R.
Published: December 2023

By harnessing the reactivity of alkynes and alkenes under photochemical conditions, novel pathways have been unlocked to construct N-heterocyclic compounds, allowing for more efficient and sustainable synthesis.
Efficient photocatalytic hydrogen production by organic–inorganic heterojunction structure in Chl@Cu2O/Ti3C2Tx
Authors: Li Yuanlin , Liu Yanxiang , Zheng Tianfang , Li Aijun , Levchenko Georgiy G. , Han Wei , Pashchenko Aleksey V. , Sasaki Shin-ichi , Tamiaki Hitoshi , Wang Xiao-Feng
Published: December 2023

The idea of exploiting the solar energy-driven photocatalytic hydrogen evolution reaction (HER) to generate hydrogen energy, a sustainable clean energy source, to solve problems such as greenhouse gas emissions is believed to be a feasible strategy.
One-pot two-stage biocatalytic upgrading of biomass-derived aldehydes to optically active β-amino alcohols via sequential hydroxymethylation and asymmetric reduction amination
Authors: Suo Yin-Hua , Zhang Jing-Qi , Qi Ning , Huang Shuang-Ping , Gao Hang , Gao Li-Li , Zhang Chao-Feng , He Yu-Cai , Zhang Jian-Dong
Published: December 2023

One-pot two-stage biocatalytic upgrading of biomass-derived aldehydes to optically active β-amino alcohols via sequential hydroxymethylation and asymmetric reduction amination.
A continuum model for magnetic particle flows in microfluidics applicable from dilute to packed suspensions
Authors: Dumas Simon , Descroix Stéphanie
Published: December 2023

We present a finite-element model for dense magnetic particle flows in microfluidics, employing an interpenetrating continuum approach. It reproduces complex behaviors like aggregation and fluidization, commonly observed phenomena in microfluidics.
Metal–organic framework-based high-performance column chip for micro gas chromatography: hybrid function for simultaneous preconcentration and separation of volatile organic compounds
Authors: Lee Yeongseok , Choi Yuntaek , Sim Jaehyun , Kim Jeonghun , Lim Si-Hyung
Published: December 2023

A hybrid micro gas chromatography column chip coated with a metal–organic framework has been developed as the first gas pretreatment chip device capable of preconcentration and separation for hazardous volatile organic compounds at low concentration.
A portable microfluidic device for thermally controlled granular sample manipulation
Authors: Zhang Kailiang , Xiang Wei , Jia Na , Yu Mingyu , Liu Jiuqing , Xie Zhijie
Published: December 2023

We report a portable microfluidic device for thermally controlled granular sample manipulation, which would be promising for those applications needing particle focusing, migration and cargo release.
Development of NIR light-responsive shape memory composites based on bio-benzoxazine/bio-urethane copolymers reinforced with graphene
Authors: Jamnongpak Weerapong , Tiptipakorn Sunan , Arumugam Hariharan , Charoensuk Krittapas , Karagiannidis Panagiotis , Rimdusit Sarawut
Published: December 2023

In this work, shape memory polymers (SMPs) were developed from a combination of a bio-based benzoxazine (BZ) monomer and polyurethane prepolymer (PU-prepolymer), both derived from bio-based raw materials.
Structure influence on high-pressure water intrusion in pure silica zeolites
Authors: Ronchi Laura , Patarin Joël , Nouali Habiba , Daou T. Jean , Ryzhikov Andrey
Published: December 2023

The high-pressure intrusion–extrusion of water in ITE-, CDO- and MTF-type zeosils has been studied. The relationship between the zeosil structure, particularly, pore size and topology, and intrusion-extrusion characteristics is discussed.
A terbium-functionalized ZIF-8 nanosensor for rapid and sensitive detection of an anthrax spore biomarker
Authors: Zuo Xurong , Liu Pengfei , Sun Qinhao , Huang Jiahui , Zhang Yuwei , Zhu Xuecheng , Chen Runqi , Meng Xiangyu
Published: December 2023

Because anthrax spores are highly lethal to humans and animals as well as potential biological warfare agents, there is a great need for rapid, sensitive, and selective quantification of dipicolinic acid (DPA) as a biomarker for anthrax spores.
Correction: NaCMC-decorated ZnO nanocomposite polymer membranes for the separation of reactive dyes from textile water
Authors: Robin R. , Raja Vinoth Kumar , Kumar R. Sathish , Arthanareeswaran G. , Taweepreda Wirach
Published: December 2023

Correction for ‘NaCMC-decorated ZnO nanocomposite polymer membranes for the separation of reactive dyes from textile water’ by R. Robin et al., New J. Chem., 2023, 47, 20517–20526, https://doi.org/10.1039/D3NJ03783E.
Class II terpene cyclases: structures, mechanisms, and engineering
Authors: Pan Xingming , Rudolf Jeffrey D. , Dong Liao-Bin
Published: December 2023

This review offers an overview of the canonical and noncanonical class II terpene cyclases, including sesquiterpene, diterpene, triterpene, and meroterpenoid cyclases. It delves into their sequences, structures, mechanisms, and engineering studies.
Transient measurement of near-field thermal radiation between macroscopic objects
Authors: Zhang Sen , Dang Yongdi , Li Xinran , Li Yuxuan , Jin Yi , Choudhury Pankaj K. , Xu Jianbing , Ma Yungui
Published: December 2023

Utilizing the first law of thermodynamics, a transient all-optical method is proposed to quickly characterize near-field radiative heat transfer (NFRHT) between macroscopic objects of different material systems.
Turning cationic antimicrobial peptide KR-12 into self-assembled nanobiotics with potent bacterial killing and LPS neutralizing activities
Authors: Lei Ruyi , Yang Chujun , Sun Yaqi , Li Dejian , Hao Liman , Li Yang , Wu Shuijing , Li Hui , Lan Chao , Fang Xiangming
Published: December 2023

(A) Nanobiotics: myristoylation of KR-12, followed by nano-assembly. (B) Penetration: myristoylated KR-12 creates pores for effective penetration. (C) LPS neutralization: positive charge interacts with bacterial LPS for superior efficacy.
Oligourea helix bundle binds detergents with diverse polar head groups
Authors: Yoo Sung Hyun , Buratto Jérémie , Roy Arup , Pasco Morgane , Pulka-Ziach Karolina , Collie Gavin W. , Guichard Gilles
Published: December 2023

Detergents bearing diverse polar head groups including ionic, zwitterionic and non-ionic can adaptively bind to an oligourea helix bundle through hydrophobic effect in water.
Ultra-fast extraction of metals from a printed circuit board using high power ultrasound in a calcium chloride-based deep eutectic solvent
Authors: Marin Rivera Rodolfo , Elgar Christopher E. , Jacobson Ben , Feeney Andrew , Prentice Paul , Ryder Karl , Abbott Andrew P.
Published: December 2023

The increase of digitization, alongside the growth in consumer electronics and shortened life cycles, has led to a significant global increase in the volume of electronic waste (e-waste).
Significant inhibition of secondary pollution in the catalytic oxidation of chloroaromatics over a bifunctional Ru1/CeO2 single-atom catalyst
Authors: Wang Yu , Liu Zhang , Wei Yao , Hu Yiming , Chen Yi , Shan Bin , Wu Bo
Published: December 2023

Single atomic Ru supported CeO2 seems to be a more promising and selective catalyst for chlorobenzene oxidation than RuO2 NPs, which enables the inhibition of HCl conversion to Cl2 and stepwise formation of polychlorinated by-products.
Means of control over poly(4-vinylpyridine)–CoBr2 complex functional thin film formation in static and dynamic conditions
Authors: Chudzik J. , Dąbczyński P. , Rysz J. , Tymetska S. , Majcher-Fitas A. M.
Published: December 2023

The surface concentration of the poly(4-vinylpyridine)–CoBr2 complex and topography can be controlled by time in solution and solution concentration.
2D bifunctional tungsten disulfide-embedded UiO-66 (WS2@UiO-66) as a highly active electrocatalyst for water splitting
Authors: Shah Muhabbat , Abdullah Uzair , Pervaiz Erum , Ali Maryum
Published: December 2023

WS2 and UiO-66 hybrid as a highly effective electrocatalyst for water splitting. It shows improved bifunctional catalytic activity for both HER and OER for efficient overall water-splitting.
Layered mechanisms regulating the human mitochondrial NAD+ transporter SLC25A51
Authors: Goyal Shivansh , Cambronne Xiaolu A.
Published: December 2023

SLC25A51 is the primary mitochondrial NAD+ transporter in humans and controls many local reactions by mediating the influx of oxidized NAD+. Intriguingly, SLC25A51 lacks several key features compared with other members in the mitochondrial carrier family, thus its molecular mechanism has been unclear. A deeper understanding would shed light on the control of cellular respiration, the citric acid cycle, and free NAD+ concentrations in mammalian mitochondria. This review discusses recent insights into the transport mechanism of SLC25A51, and in the process highlights a multitiered regulation that governs NAD+ transport. The aspects regulating SLC25A51 import activity can be categorized as contributions from (1) structural characteristics of the transporter itself, (2) its microenvironment, and (3) distinctive properties of the transported ligand. These unique mechanisms further evoke compelling new ideas for modulating the activity of this transporter, as well as new mechanistic models for the mitochondrial carrier family.
Monte Carlo‐based service migration under multiple constraints in mobile edge computing
Authors: Zhang Qiang , Yu Hao
Published: December 2023

Mobile edge computing as an emerging technique can provide services for mobile terminals, and meanwhile the mobility of users brings new challenges. When a user moves across different areas, the system needs to determine whether to migrate service so as to guarantee quality of experience for the user. However, it is difficult to obtain the optimal migration policy in real time due to the huge state space. Considering delay‐sensitive data‐intensive applications run by mobile terminals with limited battery power, an efficient service migration policy should be able to make a good tradeoff among service cost, service delay and terminal energy consumption. Here, an online Monte Carlo‐based service migration (MCSM) policy is proposed to minimize service cost under constraints of deadline and terminal energy consumption. A penalty mechanism is designed to update reward when partial or all constraints are not meet. State‐action value estimation and policy improvement are triggered only on the completion of each episode. Each episode is traversed reversely to calculate the average cumulative reward so as to improve policy. Experimental results show that the proposed approach can improve service success ratio and reduce average service cost compared to the existing service migration policies.
Electromagnetic field exposure boundary analysis at the near field for multi‐technology cellular base station site
Authors: Elbasheir Mohammed S. , Saeed Rashid A. , Edam Salaheldin
Published: December 2023

Mobile networks are expanding quickly as a result of significant advancements in wireless technologies and solutions, especially with the recent introduction of the Fifth Generation New Radio. The growth in mobile networks requires the installation of massive numbers of base stations that bring concerns about increasing overall electromagnetic field (EMF) radiation exposure levels. The International Commission on Non‐Ionizing Radiation Protection (ICNIRP) has published guidelines that have been adopted by many regulators in many countries to control the overall radiation emitted from EMF transmitters. This paper studies the compliance boundary for a single site operating with multiple technologies including from the second generation (2G) to 5G colocated in the same site. The analysis is performed using a typical site configuration setup for the boundary calculations in the form of the Compliance Distance (CD). The calculation uses the power reduction factor and system load for more realistic results, and in situ measurements are conducted to validate the calculation's formula. The study also investigated the CD for four types of sites, macro, micro, small cell, and indoor sites. Additionally, the study analyzed the power densities (PDs) and total exposure ratio (TER) for the general public and occupational workers at each site. The results show that CD has shorter distances when the power factor is considered, and 5G makes the highest contribution to the TER at the CD in the main directions of the antenna.
LIDA‐YOLO: An unsupervised low‐illumination object detection based on domain adaptation
Authors: Xiao Yun , Liao Hai
Published: December 2023

The low‐light environment is integral to everyday activities but poses significant challenges in object detection. Due to the low brightness, noise, and insufficient illumination of the acquired image, the model's object detection performance is reduced. Opposing recent studies mainly developing using supervised learning models, this paper suggests LIDA‐YOLO, an approach for unsupervised adaptation of low‐illumination object detectors. The model improves the YOLOv3 by using normal illumination images as the source domain and low‐illumination images as the target domain and achieves object detection in low‐illumination images through an unsupervised learning strategy. Specifically, a multi‐scale local feature alignment and global feature alignment module are proposed to align the overall attributes of the image and feature biases such as background, scene, and target layout are thus reduced. The experimental results of LIDA‐YOLO on the ExDark dataset achieved the highest performance mAP score of 56.65% compared to several current state‐of‐the‐art unsupervised domain adaptation object detection methods. Compared to I3Net, the performance improvement is 4.04%, and compared to OSHOT, the performance improvement is 6.5%. LIDA‐YOLO achieves a performance improvement of 2.7% compared to the supervised baseline method YOLOv3. Overall, the suggested LIDA‐YOLO model requires fewer samples and presents a stronger generalization ability than previous works.
From convective stellar dynamo simulations to Zeeman-Doppler images
Authors: Hackman T. , Kochukhov O. , Viviani M. , Warnecke J. , Korpi-Lagg M. J. , Lehtinen J. J.
Published: December 2023

Context. Zeeman-Doppler imaging (ZDI) is used to reconstruct the surface magnetic field of late-type stars from high-resolution spectropolarimetric observations. The results are usually described in terms of characteristics of the field topology, such as poloidality versus toroidality and axisymmetry versus non-axisymmetry, in addition to the field strength.

Aims. In this study, we want to test how well these characteristics are preserved when applying the ZDI method to simulated data. We are particularly interested in how accurately the field topology is preserved and to what extent stellar parameters, such as projected rotation velocity and rotation axis inclination, influence the reconstruction.

Methods. For these tests, we used published magnetic field vector data from direct numerical magnetohydrodynamic simulations taken near the surface of the simulation domain. These simulations have variable rotation rates and therefore represent different levels of activity of an otherwise Sun-like setup with a convective envelope of solar thickness. Our ZDI reconstruction is based on spherical harmonics expansion. By comparing the original values to those of the reconstructed images, we study the ability to reconstruct the surface magnetic field in terms of various characteristics of the field.

Results. In general, the ZDI method works as expected. The main large-scale features are reasonably well recovered, but the strength of the recovered magnetic field is just a fraction of the original input. The quality of the reconstruction shows clear correlations with the data quality. Furthermore, there are some spurious dependencies between stellar parameters and the characteristics of the field.

Conclusions. Our study uncovers some limits of ZDI. Firstly, the recovered field strength will generally be lower than the ‘real’ value, as smaller structures with opposite polarities will be blurred in the inversion. This is also seen in the relative distribution of magnetic energy in terms of the angular degree ℓ. Secondly, the axisymmetry is overestimated. The poloidality versus toroidality is better recovered. The reconstruction works better for a stronger field and faster rotation velocity. Still, the ZDI method works surprisingly well even for a weaker field and slow rotation provided the data have a high signal-to-noise ratio and good rotation phase coverage.
Indene energetic processing in ice mantles in the interstellar medium
Authors: Maté Belén , Tanarro Isabel , Peláez Ramón J. , Cernicharo José , Herrero Victor J.
Published: December 2023

Context. Indene, a small PAH, has been detected in the gas phase in the cold dense cloud TMC-1. Due to the low temperature in the cloud, below indene condensation temperature, its presence in the ice mantles of dust grains is likely.

Aims. The aim of this work is to study the stability of indene against the energetic processing by VUV photons or cosmic rays in the ice mantles of dense molecular clouds.

Methods. Ice layers of pure indene or indene diluted in water ice were grown by vapor deposition on a cold surface held at 10 K, 100 K, or 140 K. The samples were processed with VUV photons (120–180 nm) and 5 keV electrons and the destruction of indene was monitored by following the decay of its absorption bands in the infrared (IR) spectrum. Finally, we recorded the mass spectra of the decomposition products sublimated by thermal programmed desorption of the processed samples.

Results. Photolysis and radiolysis cross-sections, along with half-life energy doses for indene in the solid form and diluted in water ice matrices at 10 K were derived. Ketones and alcohols were identified as the main processing products in indene and water–ice mixtures

Conclusions. Dilution in water ice enhances the destruction rate of indene under energetic processing. The molecule is expected to survive for more than 107 yr in the ice mantles of grains in the interior of dense clouds, but it will end up getting destroyed within the next few hundred years by the intense VUV field in the diffuse region at the edges of the cloud.
Detection of landslide events using logistic regression and support vector machine
Authors: Suroso  , Syahrul Ramadhan Bintang
Published: December 2023

This research explores newspaper records regarding earthquake events during the Dutch colonial period in Padang, West Sumatra. This note is vital amidst the difficulties in acquiring historical statistical data for studying disasters in the past. The method used in this research is the historical method by integrating information in newspapers, particularly those that discuss the situation of society and the policies of the Dutch colonial government in dealing with various earthquakes taking place in the city of Padang during the colonial period. This research is expected to open new insights for developing the discipline of disaster science and provide access to the development of historical disaster studies in disaster-prone countries, in this case, in Indonesia.
Evaluation of liquefaction potential in flow liquefaction area in Palu City after the 28th September 2018 Donggala-Palu Earthquake
Authors: Tohari Adrin , Dani Wardhana Dadan
Published: December 2023

The occurrence of flow liquefaction phenomena, locally termed Nalodo, during the Donggala-Palu earthquake on 28 September 2018 destroyed some residential areas and infrastructures in Palu City and Sigi Regency. Evaluation of liquefaction potential in the flow liquefaction areas is required to assess the liquefaction susceptibility of the area to future earthquakes. This paper presents the results of liquefaction potential analysis in the Balaroa, and Petobo areas based on the SPT method. A calculated peak ground acceleration was used for each location. Based on the analysis, all the liquefied soil layers are still liquefiable, especially in the Balaroa area, causing a significant ground settlement. These results imply that flow liquefaction areas are still susceptible to liquefaction during a big earthquake event. Thus, restriction of re-inhabitants in the liquefaction areas is necessary, and the infrastructure development in the areas requires a proper engineering design to mitigate earthquake-induced liquefaction hazards in the future.
Catholic church’s mitigating responses to the COVID-19 pandemic globally and in Indonesia
Authors: Lakonawa Petrus , Meneses Kristine , Hepi Witono Petrus , Kristan  , Jodis Jessica , Mangatur Tampubolon Simon , Siallagan Jamson
Published: December 2023

The COVID-19 pandemic has spurred global responses from various sectors, including religious institutions. This research investigates the mitigation efforts of the Catholic Church on a global scale and its particular responses within Indonesia during the pandemic. It employs a mixed-method research design by combining qualitative and quantitative approaches in analysing official Church documents, the data from surveys and qualitative interviews with key stakeholders within the Catholic Church in Indonesia. It shows that the Catholic Church’s responses to the COVID-19 pandemic encompassed various dimensions. Globally, the Church, led by Pope Francis, emphasized solidarity, compassion, and social responsibility, advocating for vaccination programs and debt relief for affected countries. In Indonesia, the Church creatively adapted its worship procedures, emphasizing safety over rituals. It implemented online services, discouraged physical contact, and followed health protocols. Additionally, the Church engaged in charitable outreach, healthcare assistance, psychological support, and educational campaigns. Collaboration with government and non-governmental organizations was pivotal. The findings offer insights into the interplay between religion, science, and public health during pandemics and provide a reference for policymakers, religious leaders, and scholars in similar contexts.
Identification of nutritional status and incidence of sleep disturbance in children aged 6-23 months living in areas prone to flooding and landslide
Authors: Anessa M Nanda , Asrawati
Published: December 2023

Disaster can cause several major problems such as food availability (quantity and quality) and mental illness especially in vulnerable group like children, women and the elderly, which in turn will cause disruption to the quality of sleep. Availability of food in good quantity and quality as well as sleep comfort are important factors that cannot be underestimated, especially for children who are still in their first 1000 days of life, because this stage is the golden stage of physical, cognitive, and social-emotional growth and development and would impact their quality of life in the future. Based on that matter, in this paper we will discuss the impact of floods and landslides in Agam Regency, West Sumatra on nutritional status and sleep disturbance in children aged 6-23 months. Sampling was done by consecutive sampling. The children were then asked by their parents to fill out the BISQ (Brief Infant Sleep Questionnaire) questionnaire for ages 6 months to 23 months There were 32,1 % of the infants experienced sleep disturbances. Furthermore, our analysis of nutritional status revealed that of 35,7 % those with nutritional disorders is from the areas prone to flooding and landslides.
The role of digital literacy capability of Babinsa Kodim 0705/Magelang to improve community preparedness for natural disasters
Authors: Mawardi Syam Budi , Sutisna Sobar , Kurniadi Anwar , Kusuma
Published: December 2023

The intensity of disaster events that occur in the Kodim 0705/Magelang area is high. Therefore, Babinsa, who serves in the Kodim 0705/Magelang area as the spearhead who is in direct contact with the community in villages, has a central role in increasing community preparedness in the village under his guidance. To support the implementation of this task, Babinsa must have digital literacy capabilities in the face of natural disasters that occur. This research aims to analyze the role of the digital literacy capability of Babinsa, who serve in the Kodim 0705/Magelang area, in improving community preparedness in the village under their guidance in the face of natural disasters. The method used in this research is the library research method, where in this method the collection of reference sources related to the problem that is the topic of research is carried out, and then from the reference sources it is carefully understood so that the research results are obtained. The results showed that the Chapter’s digital literacy capability plays a very important role when faced with natural disasters, and advances in digital technology can improve commun ity preparedness to deal with natural disasters.
Predicting the behavior of RC T-beams strengthened with NSMCFRP rods in the negative moment region: a finite element approach for low cyclic loading
Authors: Haryanto Yanuar , Intang Setyo Hermanto Nor , Hsiao Fu-Pei , Hu Hsuan-Teh , Lie Han Ay , Nugroho Laurencius , Salim Fernando
Published: December 2023

In this study, a finite element (FE) model for nonlinear FE analysis was developed to evaluate the performance of reinforced concrete (RC) T-beams, which were strengthened in the negative moment region by near-surface mounted (NSM) carbon fiber reinforced polymer (CFRP) rods under low cyclic loading. Furthermore, the rods' depth of embedment was the research variable. Every component of the beam is considered in the model, including the concrete, steel rebars, CFRP rod, CFRP sheet, adhesive, and stirrups. The nonlinear properties of concrete, steel rebars, and adhesive were taken into account, while that of the CFRP was assumed to be linearly elastic till rupture. In addition, the user-programmable capabilities of ABAQUS were used to define the degradation of each material under low cyclic loading. The developed FE model was then compared to some experimental measurements comprising two specimens strengthened with NSM-CFRP rods and one un-strengthened control specimen. Overall, the predicted FE mid-span deflection responses were in line with the corresponding measured experimentally tested data. Finally, the research findings were summarized.
Flexural capacity of negative moment region NSM-CFRP strengthened RC T-beam under high loading rate: an analytical prediction
Authors: Nugroho Laurencius , Haryanto Yanuar , Hu Hsuan-Teh , Hsiao Fu-Pei , Lie Han Ay , Widyaningrum Arnie , Prasetijo Hari
Published: December 2023

In the design phase of strengthening a reinforced concrete (RC) beam, it is necessary to determine its capacity. Response-2000 software offers efficient analysis for determining the capacity of a beam, including its flexural capacity. The aim of this study is to assess the predictive accuracy of Response-2000 software in determining the flexural capacity of the negative moment region of NSM-FRP strengthened RC T-beams under high loading rates. The validation of the static material model was initially conducted and then several combinations of established empirical formulations were utilized to express the corresponding dynamic properties of relevant materials. The findings of the study suggest that the compressive and tensile strength of concrete have a significant impact on the flexural capacity of the strengthened beams. Furthermore, empirical evidence supports the idea that Response-2000 possesses the capability to effectively predict the flexural capacity, utilizing a rate-dependent material approach.
The challenge of utilizing Regulatory Impact Assessment (RIA) method in the formulation of regional regulations in the disaster sector in DKI Jakarta Province
Authors: Simabura Charles , Amsari Feri , Fahmi Khairul , Haykal  , Izmi Nurul
Published: December 2023

The RIA method facilitates the structured and comprehensive development of regional regulations, including identifying issues and predicting future benefits. However, using the RIA method becomes complex when dealing with disaster situations. Reflecting on the case of the establishment of Regional Regulation No. 2 of 2020 concerning COVID-19 mitigation, the application of the RIA method by involved actors has not been optimal. This is evidenced by the weak commitment of stakeholders, limited public access, and the scarcity of human resource capacity support. Therefore, it is imperative to strengthen the commitment of regional governments' commitment to adopting an RIA-based approach in forming regional regulations. To address these challenges, certain measures can be taken.
Comparison of building structure performance with masonry and without masonry
Authors: Masrilayanti  , Annisa Lidiya , Sunaryati Jati , Fakhri Fadhil
Published: December 2023

In structural designing, commonly the brickwall is only considered as a gravity load acting on the beam. On the other words, the wall in the building structure is assumed as a non-structural component. In this paper, the structural performance of a three-story building with masonry and without masonry due to seismic loads will be analyzed using pushover analysis by using the ATC 40 standard. The modeling of the building uses SeismoStruct software and assumed that the building is located in the earthquake ground acceleration region in Padang, West Sumatra. Based on the results of the analysis, the performance level of the three-story building with masonry is different compared to the building without masonry. The building with masonry as a structural component shows a better performance than without. This explains that the presence of masonry can contribute to the strength of the structure in receiving lateral loads such as earthquakes.
Human disaster in Ogawa Yoko’s Hisoyakana Kesshō
Authors: Devi Rima
Published: December 2023

Disasters that occur naturally or are man-made are discussed in various aspects so that preventive actions can be taken for disaster mitigation. Depictions of disasters are also depicted in literary works such as the novel Hisoyakana Kesshō by Ogawa Yoko, which tells of the rulers of an island bringing disaster by erasing the memory of the inhabitants' minds through the destruction of objects and concepts. This study discusses how the actions of the authorities that erase the memory of the inhabitant can bring disaster to the country, which is reflected in Japanese society, namely the abolition of the IE system from the Japanese constitution so that Japanese society no longer has a solid foundation in forming a family. This study uses a literary sociology approach with qualitative methods. The research results show that the erasure of community memory in the novel reflects the elimination of the traditional family system in Japanese society. The gradual extermination of humans by the rulers depicted in the novel Hisoyakana Kesshō is also seen in today's Japanese society, whose population has decreased from year to year until today it has decreased drastically. Erasing memory or culture from society without alternative substitutes will destroy the country.
Enchanching Body Armor: Evaluating UHMWPE with Contoured Surfaces for Improved Anti-Ballistic Performance using Finite Element Methods
Authors: Maulana Fattah , Ubaidilah  , Wangsa Lenggana Bhre , Ariawan Dody
Published: December 2023

Anti-ballistic is an indispensable personal protective equipment such as body armour for military and police personnel. This tool has received a lot of attention in recent decades due to increasing threats and insurgencies. Several studies have reviewed the development of anti-ballistic technology. However, there still needs to be discussion related to the development of anti-ballistics using UHMWPE (Ultra High Molecular Weight Polyethylene) and the contours of the surface of the UHMWPE. In addition, anti-ballistic studies are rarely carried out compared to other fields. This is because discussions or research related to weapons are still sensitive discussions. This study aims to determine whether the quality of body armour made using UHMWPE which one of the surfaces is given a specific profile, is better when compared to UHMWPE, which has no contours on all surfaces. UHMWPE material that is given a certain profile is one of the ideas chosen because it has high strength and aesthetic value, so it is expected to withstand bullet impact, comfortable and attractive when used. The antiballistic properties of UHMWPE given the diamond contour were obtained from numerical simulations using the finite element model (explicit dynamics) of ANSYS Workbench software. The two UHMWPE variants used in the multiplelayered configuration consist of UD UHMWPE sheets. Ballistic testing used a 7,62 mm calibre lead bullet with a velocity of 720 m/s. The material model of the bullet and UHMWPE plate used the Johnson-Cook plasticity model.
CFD Analysis of The Stage-Ratio Factor on Savonius Wind Turbine Performance to Optimize Clean-Energy Conversion
Authors: Mahesa Prabowoputra Dandun , Krisnawati Maria , Sari Nurhidayat Akhlis Rahman , Khosyi Mohammad , Febrian Nur Halim Ryan , Zumara Haidar
Published: December 2023

In Indonesia, 50% of electrical energy is supplied by coal via electric steam power plants, with the remaining 14% supplied by new renewable energy sources. This phenomena demonstrates a significant divergence in the utilization of fossil energy sources against new renewable energy sources. The impact of fossil energy sources is the occurrence of global warming and non-renewable energy sources, a transition process to clean energy produced from renewable energy is required. Hydro, wind, and bioenergy are all possible renewable energy sources in Indonesia. The potential for converting wind energy into electrical energy in Indonesia is relatively large, at 159 GW. The rotor in the wind turbine is one of the primary components that plays a part in reversing the kinetic energy of the fluid into electrical power. Savonius is a simple rotor that can be used to generate power from wind on a small scale. Savonius' merits are its basic structure and ability to function at low wind speeds. This study was carried out on a Stage-ratio variation on a two-stage Savonius rotor with a Phase Shift-Angle of 30˚. The boundary condition is steady-state, and the turbulence type employed in modeling is SST. The goal of this research is to provide an optimal design for the Savonius Wind turbine as a design consideration in local-scale wind energy management, as well as to contribute to the attainment of the SDGs by 2030 through clean energy. Optimal design for Savonius with a PSA of 30˚ was produced Cpmax 0.29 with Stage-ratio 2:1.
The Effect of Adding MCC on the Mechanical Strength of the HDPE-Water Hyacinth Bio-Composite
Authors: Maulana Al-Farizy Alvin , Kusharjanta Bambang , Wisnu Raharjo Wijang
Published: December 2023

This research aims to determine the effect of adding Microcrystalline Cellulose (MCC) to Bio-composites. MCC was put into a mixture of HDPE matrix and water hyacinth with a volume ratio of 0% and 1% MCC. Composites are made through extrusion and hot-pressing processes. The mechanical and physical properties of the composite were tested to determine the effect of adding MCC. The results of this study showed that the addition of 1% MCC increased the tensile strength by 4.6% with a strength of 30.81 MPa and a modulus of elasticity of 2190.63 MPa. The same thing happened during physical testing through density testing, where the addition of 1% MCC could increase the density to 1.016 gr/cm3. SEM testing was also carried out in this study, the results showed that the composite surface with the addition of MCC, voids and gaps that were previously seen to be closed by MCC so that the transfer of stress between the matrix and the fiber is better.
Effect of Addition of Dipersion Agent on Tensile Mechanical Strength of HDPE Water Hyacinth Composites
Authors: Isma’il Nur Ikhsan , Ariawan Dody , Raharjo Wijang Wisnu
Published: December 2023

Natural fiber-reinforced polymer composites are a solution to growing environmental threats. This research used water hyacinth natural fiber and HDPE thermoplastic polymer. Natural water hyacinth fiber contains cellulose which can be used to create environmentally friendly and high-strength composites. The uneven distribution of natural fibers in the composite causes a decrease in the quality of the composite, both in terms of mechanical strength and morphological structure. Clumping and agglomeration are caused due to the incorporation of regenerated cellulose fibers in the composite. The treatment of water hyacinth natural fiber using a dispersion agent is intended to improve fiber distribution so that it is more evenly distributed. The addition of 0.5 ml of Dispersion Agent to water hyacinth natural fiber created the highest tensile mechanical strength of 26.2 MPa. The lowest mechanical tensile strength occurred in natural fiber composites without Dispersion Agent treatment of 19.5 MPa. Water hyacinth natural fibers added with the concentration of the Dispersion Agent did not show an increase in the tensile strength of the water hyacinth-HDPE natural fiber composites. Keywords: Water hyacinth, Mechanical Strength, Dispersion Agent.
The Effect of Activated Carb on Derived from Black Betel Leaf Biomass Waste as Composite Anodes on Lithium-Ion Battery Applications
Authors: Griyasti Suci Windhu , Jamaluddin Anif , Dina Panuntun Adama , Nur Rikhy Stulasti Khikmah , Budi Setyawati Rosana , Rijal Azinuddin Yazid
Published: December 2023

Lithium-ion batteries have shown promising performance in high-energy storage systems for electric vehicles. The electrode material used in the battery affects the performance of the LIB. The material on the anode can be modified by adding activated carbon (AC) to the graphite. AC can be made from a variety of biomass wastes, including black betel leaf biomass. AC was prepared by hydrothermal carbonization method in an inert gas atmosphere and then activated with a KOH solution. AC material was then analyzed by SEM and FTIR. Li-ion batteries with 0%, 10%, and 20% activated carbon addition were tested with a battery analyzer. The resulting specific capacities of graphite-AC 0%, graphite-AC 10%, and graphite-AC 20% batteries were 115.57 mAh/g, 94.60 mAh/g, and 76.38 mAh/g, respectively. The battery was then cycle tested at a current of 0.5C, and the resulting battery with the addition of 20% activated carbon showed the best retention capacity of 88.34% after 50 cycles. The battery test results show that activated carbon from black betel leaves can be used as an anode material for lithium-ion batteries.