bluuebunny/crossref_metadata_2025 huggingface dataset:
Local symmetry-driven interfacial magnetization and electronic states in (ZnO)n/(w-FeO)n superlattices
Authors: Gao Jia-Xin , Ng Yi Sheng , Cheng Hao , Wang Hui-Qiong , Lü Tie-Yu , Zheng Jin-Cheng
Published: March 2024

Superlattices constructed with the wide-band-gap semiconductor ZnO and magnetic oxide FeO, both in the wurtzite structure, have been investigated using spin-polarized first-principles calculations.
Unveiling the quantum secrets of triel metal triangles: a tale of stability, aromaticity, and relativistic effects
Authors: Escayola Sílvia , Jimenez-Izal Elisa , Matito Eduard , Ugalde Jesus M. , Grande-Aztatzi Rafael , Mercero Jose M.
Published: March 2024

MCSCF natural orbitals and the corresponding number of (α/β) electrons and its aromaticity (Hückel), Baird odd-symmetry anti-aromaticity and Baird odd-symmetry aromaticity after applying Mandados rules.
Molten multi-phase catalytic system comprising Li–Zn alloy and LiCl–KCl salt for nitrogen fixation and ammonia synthesis at ambient pressure
Authors: Meng Xian , Liu Jian , Tang Zujian , Xi Bingxu , Yan Pu , Wang Xingran , Cao Kecheng , Yang Bo , Guan Xiaofei
Published: March 2024

Through combined experiments and simulations, we unraveled the molecular mechanisms of nitrogen fixation and ammonia synthesis in the molten catalytic systems.
Tuning of surface oxygen vacancies for enhancing photocatalytic performance under visible light irradiation in Sb2WO6 nanostructures
Authors: Sharma Manisha , Singh Rahul , Sharma Anitya , Krishnan Venkata
Published: March 2024

Tuning of oxygen vacancies in photocatalytic materials is a versatile strategy to enhance visible light absorption and photocatalytic activity.
Transition metal complexes of the (2,2,2-trifluoroethyl)phosphinate NOTA analogue as potential contrast agents for 19F magnetic resonance imaging
Authors: Koucký Filip , Dobrovolná Tereza , Kotek Jan , Císařová Ivana , Havlíčková Jana , Liška Alan , Kubíček Vojtěch , Hermann Petr
Published: March 2024

A new hexadentate 1,4,7-triazacyclononane-based ligand bearing methylene-(2,2,2-trifluoroethyl)phosphinate pendant arms was synthesized and its complexes with selected metal ions were studied.
Sustainable lignin-derived hierarchical mesoporous carbon synthesized by a renewable nano-calcium carbonate hard template method and its utilization in zinc ion hybrid supercapacitors
Authors: Zhu Jiahao , Huang Tao , Lu Manjia , Qiu Xueqing , Zhang Wenli
Published: March 2024

Research on zinc-ion hybrid supercapacitors has been gaining much attention due to the combination of their high energy and power density.
In situ formed nickel phosphide/iron oxide heterojunction for accelerating hydrogen generation
Authors: Xu Wenjing , Li Wei , Chen Wei , Liu Mei , Guo Xianji , Li Baojun
Published: March 2024

A close heterojunction of Fe3O4–Ni2P uniformly embedded in a carbon material (Fe3O4–Ni2P@C) was prepared via surface phosphorization. The catalyst shows high catalytic activity and stability due to the heterojunctions with positive synergy.
Metal- and photocatalyst-free three-component strategy to prepare benzylalcohol-, aldehyde-substituted BCP building blocks
Authors: Li Fei , Liao Huijuan , Dong Jianyang , Xiong Weikang , Yan Yonggang , Li Gang , Xue Dong
Published: March 2024

A mild one-step, light-promoted, three-component radical-coupling reaction of [1.1.1]propellane to afford difunctionalized benzylalcohol-, aldehyde-substituted BCPs in the absence of metals, photocatalysts or external oxidants was reported.
Selective enhancement of (6–4) photoproduct formation in dithymine dinucleotides driven by specific sugar puckering
Authors: Jakhlal Jouda , Denhez Clément , Coantic-Castex Stéphanie , Martinez Agathe , Harakat Dominique , Douki Thierry , Guillaume Dominique , Clivio Pascale
Published: March 2024

Evidence is presented that (6–4) photoproduct formation between two thymine residues in dinucleotide analogues is significantly and specifically enhanced when the 5′′- and 3′′-end sugar puckering are mainly north and south, respectively.
Phenylboronic acid-derived nanovectors for gene/drug delivery by targeting cell surface glycans
Authors: Muripiti Venkanna , Ravula Venkatesh , Batthula Srinivas , Banothu Janardhan , Gondru Ramesh
Published: March 2024

Due to their high affinity for sialic acid (SA), which is commonly overexpressed in malignant cells, phenylboronic acid (PBA)-decorated nanoparticles efficiently transfer genes to the desired region. These nanoparticles can have unique applications in drug/gene delivery research.
Controlled ring-opening (co)polymerization of macrolactones: a pursuit for efficient aluminum-based catalysts
Authors: Nakornkhet Chutikan , Kamavichanurat Sirawan , Joopor Wasan , Hormnirun Pimpa
Published: March 2024

This work reports on the search for highly efficient aluminum-based complexes for the synthesis of high molar mass polymacrolactones and their well-defined block copolymers with small ring lactones, ε-caprolactone and l-lactide.
Inverse vulcanization employing epoxy compounds as crosslinking agents for elemental sulfur in the preparation of sulfur-rich epoxy resins
Authors: Lai Yue-Sheng , Liu Ying-Ling
Published: March 2024

Epoxy compounds reacting with elemental sulfur in inverse vulcanization for the preparation of a wide scope of sulfur-rich epoxy polymers.
Post-polymerization functionalization of aliphatic polycarbonates using click chemistry
Authors: Hassan Mohsin , Bhat Gulzar A. , Darensbourg Donald J.
Published: March 2024

Presently there is much interest in the synthesis of degradable, more sustainable polymers from resources that minimize the use of petroleum-based feedstocks.
An unusual reaction in nitromethane solution: use of the Cp*Rh moiety to form Prussian blue analogues
Authors: Ma Huirong , Liu Liangchen , Liao Yuluan , Shi Huatian , Sun Po , Yu Weibin
Published: March 2024

The direct decomposition of nitromethane into nitrile compounds is a significant challenge due to the occurrence of severe side-reactions.
Rational design for broad near-infrared emission from a two-sited Rb2LiAlF6:Cr3+ phosphor with high efficiency and thermal stability for spectroscopic applications
Authors: Qing Song , Wan Jing , Yang Tao , Zhou Qiang , Zhou Yayun , Wang Zhengliang , Wen Dawei , Wu Mingmei
Published: March 2024

A comparative investigation of broadband near-infrared luminescence from two different occupation sites in Rb2LiAlF6:Cr3+ with high efficiency and excellent thermal stability.
DBU-catalyzed substitution-controlled synthesis of oxa[3.3.1] bridged ring and naphthylamine derivatives
Authors: Xu Shiyu , Sun Zhihui , Liu Pengyutian , Wei Yuanlin , Sun Fan , Zhao Man , Wang Ying , Zhang Ming , Li Guofeng , Liang Hong
Published: March 2024

A switchable cascade cyclization reaction of ortho-alkynyl arylketones with amines has been developed, where the different reaction pathways are controlled by the substituent on the α-carbon of in-situ-generated ortho-alkynyl arylaldimines.
Influence of the substitution position on spin communication in photoexcited perylene–nitroxide dyads
Authors: Thielert Philipp , El Bitar Nehme Mélissa , Mayländer Maximilian , Franz Michael , Zimmermann Simon L. , Fisch Fabienne , Gilch Peter , Vargas Jentzsch Andreas , Rickhaus Michel , Richert Sabine
Published: March 2024

Photoexcited chromophore–radical dyads are suitable for applications in molecular spintronics. We show that the position of attachment of the radical to the chromophore can be used as a means to tune their optical and magnetic properties.
Graphene nanoribbons/Ru as efficient cathodic catalysts for high-performance rechargeable Li–CO2 batteries
Authors: Ye Xiaoling , Liu Wencheng , Lu Yan , Zheng Xiaoxiao , Bi Yijian , Zheng Min , Han Lei , Liu Benqing , Ning Yafei , Jafri Syed Hassan Mujtaba , Zhao Xinyu , He Shangming , Zhang Shilin , Li Hu
Published: March 2024

The GNR/Ru composite is for the first time developed as a cathode catalyst for a Li–CO2 battery, demonstrating exceptional electrochemical performance due to the synergistic effects of GNRs and Ru nanoparticles.
Selective control of sharp-edge zinc electrodes with (002) plane for high-performance aqueous zinc-ion batteries
Authors: Jeong Hee Bin , Kim Dong Il , Yoo Geun , Mohan Dasari , Roy Arijit , Jung Min , Jeong Hyeong Seop , Cha SeungNam , An Geon-Hyoung , Cha Pil-Ryung , Hong John
Published: March 2024

This study introduces a novel ZnSE electrode fabrication method, stabilizing the (002) crystal plane to reduce Zn dendrite growth, lower HER, and enhance corrosion resistance.
Unveiling the stacking-dependent electronic properties of the 2D ultrathin rare-earth metalloxenes family LnX2 (Ln = Eu, Gd, Dy; X = Ge, Si)
Authors: Mihalyuk Alexey N. , Sheverdyaeva Polina M. , Chou Jyh-Pin , Matetskiy Andrey V. , Eremeev Sergey V. , Zotov Andrey V. , Saranin Alexander A.
Published: March 2024

It is discovered that in 2D rare-earth metalloxenes the capping layer enables the modification of the stacking order within metalloxene film and induces changes in the electronic band-structure and magnetic ground-state.
High ionic conductive, freezing-resistant and transparent polyurethane based on a novel metal ionic deep eutectic solvent
Authors: Du Menghao , Zhu Xu , Yang Kaiyue , Cheng Haoge , Ma He , Zhang Kaihu , Ma Ning , Yang Yuyun , Zhang Xinyue
Published: March 2024

With the progress of society, flexible conductive ionic sensors are becoming more and more important for future advanced wearable devices, for biosensing or human–computer interaction.
Enhancement of the charge-generation efficiency for a naphthalene diimide-based polymer semiconductor by using a pyrene-substituted n-dopant
Authors: Liang Minghao , Zeng Yan , Shang Wansong , Yi Yuanping , Li Cheng , Zhang Xi-Sha , Zhang Guanxin , Zhang Deqing
Published: March 2024

A new n-type dopant featuring a pyrene unit was developed, which shows better charge-generation efficiency for a naphthalene diimide (NDI)-based conjugated polymer than N-DMBI due to the distinctive interaction between the pyrene and the NDI units.
MXene-based optoelectronic synaptic transistors utilize attentional mechanisms to achieve hierarchical responses
Authors: Qin Ningpu , Ren Zexuan , Fan YuYang , Qin Congyao , Liu Changfei , Peng Wenhong , Huang Bingle , Chen Huipeng , Guo Tailiang
Published: March 2024

Faced with a huge amount of information, the brain relies on attention mechanisms to highly select information for efficient processing.
Evaluation method for electromagnetic interference complexity of high voltage switch based on feature extraction and GCC‐GRU network
Authors: Lu Wenchao , Duan Jiandong , Cheng Lin , Lu Jiangping , Tao Jiaxin , Yin Jianning
Published: March 2024

When some new‐type sensors are subjected electromagnetic interference (EMI), the traditional standard can no longer serve as the guidance for their EMI protection. Therefore, it is necessary to evaluate the complexity of the new sensing equipment's suffering from electromagnetic interference. A hybrid method of feature extraction and complexity evaluation of Electromagnetic Interference signals based on generalised correntropy criterion (GCC) is proposed. First, a variational mode decomposition algorithm for adaptive extraction of decomposed signals is constructed using GCC, and Generalised S‐transform is used for processing and reorganisation. Then, according to the time‐frequency space model, a new quantitative evaluation criterion interference factor is proposed, which overcomes the shortcomings of the traditional qualitative classification and the inability to solve the cross classification of indicators. Then, the Gated Recurrent Unit is introduced, and the GCC‐GRU evaluation model with GCC as the loss function is derived. The authors conduct EMI tests and measured signal evaluation with Medium Voltage and High Voltage switches, and the results show that the method proposed is correct and effective.
MSFA: Multi‐stage feature aggregation network for multi‐label image recognition
Authors: Chen Jiale , Xu Feng , Zeng Tao , Li Xin , Chen Shangjing , Yu Jie
Published: March 2024

Multi‐label image recognition (MLR) is a significant branch of image classification that aims to assign multiple categorical labels to each input. Previous research has focused on enhancing the learning of category‐related regional features. However, the potential impact of multi‐scale distributions in intra‐ and inter‐category targets on MLR tends to be neglected. Besides, semantic consistency for categories is restricted to be considered on single‐scale features, resulting in suboptimal feature extraction. To address the limitations of above, a Multi‐stage Feature Aggregation (MSFA) network is proposed. In MSFA, a novel local feature extraction method is suggested to progressively extract category‐related high‐resolution local features in both spatial and channel dimensions. Subsequently, local and global features are fused without additional up‐ and down‐sampling to enrich the scale diversity of the features while incorporating refined class‐specific information. Furthermore, a hierarchical prediction scheme for MLR is proposed, which generates classification confidence corresponding to different scales under hierarchical loss supervision. Consequently, the final output of the network comes from the joint prediction by the classifiers on multi‐scale features, ensuring a stronger feature extraction capability. The extensive experiments have been carried on VOC and MS‐COCO datasets, and the superiority of MSFA over existing mainstream methods has been verified.
Noncontact estimation of the onset of ice accretion in turbofan stators
Authors: Saleh Khalid , Leis John , Buttsworth David
Published: March 2024

The problem of crystal ice formation inside aircraft turbine engines is well‐documented, and poses a significant risk to safety. The problem is not only one of power loss in flight, but the very real possibility that a flame‐out event could occur due to ice accretion on compressor stators, with potentially catastrophic outcomes. Although many instrumentation systems have been developed for wing ice detection, incipient formation of crystal ice is somewhat more difficult to detect. This is compounded by the need for a noncontact sensor which is robust to in‐flight conditions. This paper proposes an approach to the detection of ice formation based on microwave transmission characteristics across the first and possibly the second stage of the compressor stator. It is shown that noncontact detection is feasible under realistic conditions. The contribution of this paper is twofold. First, the microwave transmission approach is motivated using wind tunnel measurements, and appropriate frequency bands are determined. Next, a signal processing approach involving higher‐order analysis of time‐frequency distribution characteristics is then put forward. Experimental results are presented to support the hypothesis that multiband detection offers a workable approach to the incipient crystal‐ice detection problem.
The dense and non-homogeneous circumstellar medium revealed in radio wavelengths around the Type Ib SN 2019oys
Authors: Sfaradi I. , Horesh A. , Sollerman J. , Fender R. , Rhodes L. , Williams D. R. A. , Bright J. , Green D. A. , Schulze S. , Gal-Yam A.
Published: March 2024

Context. Mass loss from massive stars, especially towards the end of their lives, plays a key role in their evolution. Radio emission from core-collapse supernovae (SNe) serves as a probe of the interaction of the SN ejecta with the circumstellar medium (CSM) and can reveal the mass-loss history of the progenitor.

Aims. We aim to present broadband radio observations of the CSM-interacting SN 2019oys. SN 2019oys was first detected in the optical and was classified as a Type Ib SN. Then, ~100 days after discovery, it showed an optical rebrightening and a spectral transition to a spectrum dominated by strong narrow emission lines, which suggests strong interaction with a distant, dense, CSM shell.

Methods. We modelled the broadband, multi-epoch radio spectra, covering 2.2 to 36 GHz and spanning from 22 to 1425 days after optical discovery, as a synchrotron emitting source. Using this modelling, we characterised the shockwave and the mass-loss rate of the progenitor.

Results. Our broadband radio observations show strong synchrotron emission. This emission, as observed 201 and 221 days after optical discovery, exhibits signs of free–free absorption from the material in front of the shock travelling in the CSM. In addition, the steep power law of the optically thin regime points towards synchrotron cooling of the radiating electrons. Analysing these spectra in the context of the SN-CSM interaction model gives a shock velocity of 11 000 km s−1 (for a radius evolution of ~∆t0.8, where ∆t is the time since optical discovery) and an electron number density of 4.1 × 105 cm−3 at a distance of 2.6 × 1016 cm. This translates to a high mass-loss rate from the progenitor massive star of 10−3 M⊙ yr−1 for an assumed wind of 100 km s−1 (assuming a constant mass-loss rate in steady winds). The late-time radio spectra, 392 and 557 days after optical discovery, show broad spectral peaks. We show that this can be explained by introducing a non-homogeneous CSM structure.
Revisiting the abundance pattern and charge-exchange emission in the centre of M 82
Authors: Fukushima K. , Kobayashi S. B. , Matsushita K.
Published: March 2024

Context. The interstellar medium (ISM) in starburst galaxies contains many chemical elements that are synthesised by core-collapse supernova explosions. By measuring the abundances of these metals, we can study the chemical enrichment within the galaxies and the transportation of metals into the circumgalactic environment through powerful outflows.

Aims. We performed a spectral analysis of the X-ray emissions from the core of M 82 using the Reflection Grating Spectrometer (RGS) on board XMM-Newton to accurately estimate the metal abundances in the ISM.

Methods. We analysed over 300 ks of RGS data observed with 14 position angles, covering a cross-dispersion width of 80 arcsec. We employed multi-temperature thermal plasma components in collisional ionisation equilibrium (CIE) to reproduce the observed spectra, each of which exhibited a different spatial broadening.

Results. The O VII band CCD image shows a broader distribution that those for the O VIII and Fe-L bands. The O VIII line profiles have a prominent double-peaked structure that corresponds to the north- and southward outflows. The O VII triplet feature exhibits marginal peaks. A single CIE component that is convolved with the O VII band image approximately reproduces the spectral shape. A CIE model combined with a charge-exchange emission model also successfully reproduces the O VII line profiles. However, the ratio of these two components varies significantly with the observed position angles, which is physically implausible. Spectral fitting of the broadband spectra suggests a multi-temperature phase in the ISM that is approximated by three components at 0.1, 0.4, and 0.7 keV. Notably, the 0.1 keV component exhibits a broader distribution than the 0.4 and 0.7 keV plasmas. The derived abundance pattern shows super-solar N/O, solar Ne/O and Mg/O, and half-solar Fe/O ratios. These results indicate the chemical enrichment by core-collapse supernovae in starburst galaxies.
Sublimation of volatiles from H2O:CO2 bulk ices in the context of comet 67P/Churyumov-Gerasimenko
Authors: Kipfer K. A. , Ligterink N. F. W. , Rubin M. , Altwegg K. , Hänni N. , Müller D. R. , Wurz P. , Galli A. , Wampfler S. F.
Published: March 2024

Context. Comets are considered to be remnants from the formation of the Solar System. ESA’s Rosetta mission targeted comet 67P/Churyumov-Gerasimenko and was able to record high-quality data on its chemical composition and outgassing behaviour, including low abundances of N2 that are observed to be correlated with H2O and CO2 in approximately a 63:37 ratio.

Aims. In this work, the thermal desorption behaviour of N2 in H2O:CO2 ices was studied in the laboratory to investigate the co-desorption behaviour of N2 within the two most abundant cometary ices in 67P and to derive desorbing fractions in different temperature regimes.

Methods. H2O:CO2:N2 ices of various ratios were prepared in a gas mixing system and co-deposited at 15 K onto a copper sample holder. Sublimation of the ice was measured using temperature programmed desorption mass spectrometry. Quantitative values were derived for the fraction of N2 co-desorbing with CO2 and H2O respectively. To validate the results, H2O:CO2:13CO ices were prepared as well.

Results. The experiments show that the co-desorption of N2 with CO2 in H2O:CO2:N2 ices depends on the bulk amount of CO2 present in the ice. The fraction of N2 trapped in H2O reduces as more N2 and CO2 are added to the mixture. CO behaves qualitatively similar to N2, but more CO is found to co-desorb with CO2. To reproduce the ratio of N2 desorbing with H2O over that of CO2 (N2(H2O)/N2(CO2)), our ice analogues need to contain ≥15% CO2, while 67P contains ≤7.5% CO2. Large fractions of N2 can be removed from the ice due to heating up to 70 K, but for ice that most closely resembles that of 67P, the loss fraction of pure phase N2 is expected to be ≤20%. Therefore, N2 is suggested to be a minor carrier of nitrogen in the comet.
The outflowing ionised gas of I Zw 1 observed by HST COS
Authors: Juráňová A. , Costantini E. , Kriss G. A. , Mehdipour M. , Brandt W. N. , Di Gesu L. , Fabian A. C. , Gallo L. , Giustini M. , Rogantini D. , Wilkins D. R.
Published: March 2024

Aims. We present an analysis of the Hubble Space Telescope Cosmic Origins Spectrograph spectrum of I Zw 1 aiming to probe the absorbing medium associated with the active galactic nucleus (AGN).

Methods. We fitted the emission spectrum and performed spectral analysis of the identified absorption features to derive the corresponding ionic column densities and covering fractions of the associated outflows. We employed photoionisation modelling to constrain the total column density and the ionisation parameter of four detected kinematic components. By investigating the implications of the results together with the observed kinematic properties of both emission and absorption features, we derived constraints on the structure and geometry of the absorbing medium in the AGN environment.

Results. We find and characterise absorption line systems from outflowing ionised gas in four distinct kinematic components, located at −60, −280, −1950, and −2900 km s−1 with respect to the source rest frame. While the two slower outflows are consistent with a full covering of the underlying radiation source, the well-constrained doublet line ratios of the faster two, higher column density, outflows suggest partial covering, with a covering fraction of Cf ∼ 0.4. The faster outflows show also line-locking in the N V doublet, a signature of acceleration via line absorption. This makes I Zw 1 possibly the closest object that shows evidence for hosting line-driven winds. The observed −1950 km s−1 absorption is likely due to the same gas as an X-ray warm absorber. Furthermore, the behaviour in UV and X-ray bands implies that this outflow has a clumpy structure. We find that the highly asymmetric broad emission lines in I Zw 1, indicative of a collimated, outflowing broad line region, are covered by the absorbing gas. Finally, the strongest UV–X-ray absorber may be connected to some of the blueshifted line emission, indicative of a more spatially extended structure of this ionised medium.
Comparison of Metabarcoding Techniques for Dietary Assessment in Herbivores and Omnivores
Authors: Hartini Sariyati Nur , Haris Hidayah , Farhana Ramli Farah , Firdaus Sufahani Suliadi , Munir Md-Zain Badrul , Yaakop Salmah , Mohd-Ridwan Abd Rahman , Rahman Aifat Nor , Mohamed Mohd Sanusi , Maryanto Ibnu , Abu Bakar Abdul-Latiff Muhammad
Published: March 2024

Dietary assessment plays a crucial role in comprehending the ecological dynamics and nutritional needs of herbivores and omnivores. The metabarcoding technique has emerged as a potent tool for exploring the dietary composition of these animals. However, various metabarcoding techniques have been developed, each with its own advantages and limitations. This study aims to compare the performance of different metabarcoding techniques in herbivores and omnivores diet. We systematically reviewed 159 published manuscripts in Scopus and Google Scholar, and thematic analysis was conducted across several categories, including the marker, platform, and database utilized. Preliminary findings reveal significant variations among metabarcoding techniques across these two animal groups. The trnL gene exhibited higher taxonomic resolution for herbivorous species, whereas the combination of the 'trnL + 16s rRNA' gene exhibited superior performance for omnivorous species. The Illumina platform emerged as the most commonly used method for analyzing the diets of both herbivores and omnivores, with the primary reference database being the National Centre for Biotechnology Information (NCBI). This study offers valuable insights into the strengths and limitations of different metabarcoding techniques for dietary assessment in herbivores and omnivores and optimizing metabarcoding protocols, facilitating more precise and reliable diet analyses within these ecological groups.
Assessing Methodological Variability in Gut Microbiome Studies: Lessons from Southeast Asian for Effective Conservation Strategies
Authors: Haris Hidayah , Sariyati Nur Hartini , Ramli Farah Farhana , Abdullah-Fauzi Nurfatiha Akmal Fawwazah , Sufahani Suliadi Firdaus , Md-Zain Badrul Munir , Yaakop Salmah , Mohd-Ridwan Abd Rahman , Aifat Nor Rahman , Maryanto Ibnu , Abdul-Latiff Muhammad Abu Bakar
Published: March 2024

Gut microbiome studies have gained significant attention in recent years due to their potential in unveiling the role of microbial communities in animals’ health and ecological processes. However, the lack of standardized protocols in sample handling and processing across studies introduces variability, impeding the comparability of findings. This study addresses this issue by examining methodological variations in gut microbiome research on wildlife and domesticated animals in Southeast Asia. A comprehensive search of 91 relevant studies on the SCOPUS database yielded 54 suitable publications for review, encompassing diverse taxa such as invertebrates (20), fishes (7), reptiles (3), birds (5), and mammals (19). Notably, various methodological approaches were employed to characterize microbial communities, including the source of isolation, various culture-based approaches, sequencing methods, and the targeted markers. Based on the information provided in this study, future studies should strive to develop guidelines and best practices specific to gut microbiome studies. This would enhance comparability and facilitate the integration of findings. Such efforts will also advance our understanding of the microbial diversity associated with wildlife, and its potential implications for their health and conservation.
Unveiling Porcine Contamination in Halal-uncertified Cosmetics: Detection through Existing Procedure using DNeasy Mericon Food Kit DNA Extraction and Real-time qPCR
Authors: Sampurna Intan Sartika Risky , Suharti Suharti , Hidayatullah Arief , Faridah Nur
Published: March 2024

The surge in cosmetic product consumption in Indonesia has spurred the growth of the local cosmetic industry. However, not all cosmetics in circulation adhere to the halal standards mandated by Indonesian authorities through the Law on Halal Product Guarantee. This study endeavors to establish a method for identifying pork-derived content in cosmetic cream products lacking the halal logo. The approach involves total DNA isolation using the Qiagen DNeasy Mericon Food Kit, followed by detecting the NDH5 gene using qPCR. Results indicated that the isolation kit effectively extracted DNA fragments from cosmetic products, yielding 0.6–0.8 ng/µL concentrations, with A260/280 ratios ranging from 0.90 to 1.76 and A260/230 ratios from 0.12 to 0.17. Analysis of five cosmetic cream samples revealed that three of them exhibited no contamination by pig-derived elements, with a cut-off value of 23.7×101. Consequently, the isolation method utilizing the kit and the subsequent detection of the NDH5 gene through qPCR emerge as a robust approach for identifying pig-derived ingredients in cream-based cosmetics.
Antibody Detection of Toxoplasma gondii on Blood Donor at PMI Kota Yogyakarta by Rapid Diagnostic Methods in 2022
Authors: Rahman Aulia , Rahayu Tanti , Rahmawati Zain Kumara , Widyaswara Gravinda , Vatun Uswatuya Nanda
Published: March 2024

Toxoplasmosis is a disease that caused by Toxoplasma gondii parasite. Toxoplasma gondii is a group of protozoa, and it belongs to intracellular obligate parasites. This parasite mostly found in animal, and it can be dangerous, on many cases, it can cause death with no symptoms. The purpose of this study is to find out the percentage of IgG and IgM antibodies examination of Toxoplasma gondii on blood donor in PMI Kota Yogyakarta. This study belongs to descriptive observational type, with cross-sectional design to find out the results of antibody detection on Toxoplasma gondii. The detection was carried out by Rapid Diagnostic Methods that can detect the presence of IgG and IgM antibodies. This study was also using questionnaires to know the relationship between the daily behaviours with toxoplasmosis case. The results show that 14 samples were reactive on IgG antibody parameter (76%) and 11 samples were non-reactive (24%). From the questionnaires known that the daily behaviour’s such as having a cat, eating raw/undercooked meat products, eating unwashed fruits and vegetables related to the case of toxoplasmosis.
A Review on Green Machining: Environmental and Economic Impacts of Cutting Fluids
Authors: Dubey Yogesh , Sharma Pankaj , Singh Mahendra Pratap , Rao GVR. Seshagiri , Mohammad Q. , Lakhanpal Sorabh , Raj Vijilius Helena , Rao A. L. N.
Published: March 2024

Green machining is an emerging field that focuses on reducing the environmental impact of machining processes while maintaining or improving their economic efficiency. Cutting fluids are commonly used in machining operations to reduce friction and heat generated during cutting, but they can also cause negative environmental and health impacts. This paper reviews the environmental and economic impacts of cutting fluids in machining processes and presents various green machining techniques that can be used as alternatives to traditional cutting fluids. The paper also discusses the challenges associated with implementing green machining techniques and the main outcome is the potential benefits for both the environment and the economy.
Biomimetic Materials for Regenerative Medicine: Design and Applications
Authors: Jain Toshit , Sujani Singavarapu , Singh Navdeep , Al-Alawachi Sharif Fadhil Abood , V Asha , Meheta Ankit
Published: March 2024

Bio mimetic materials have shown great potential for tissue engineering and regenerative medicine as they can mimic the natural extracellular matrix (ECM) of tissues and organs. The ECM is a complex network of proteins, glycosaminoglycans, and other bio molecules that provide structural support to cells and regulate their behaviour. Bio mimetic materials can be designed to replicate the biochemical and biophysical properties of the ECM, creating an environment that promotes cell adhesion, proliferation, differentiation, and tissue regeneration. There are different classes of bio mimetic materials, including natural and synthetic polymers, as well as inorganic materials such as Hydroxyapatite and ceramics. Polymers made from nature that assist with with cell growth and differentiation, like collagen, which is fibrin, and hyaluronic acid, for instance, have been utilised extensively in tissue engineering. Both the physical and chemical characteristics of synthetic polymers, which include polyethylene glycol, also known as PEG, and poly lactic acid (PLA), can be modified to satisfy the needs of different tissues. Inorganic materials such as hydroxyapatite and ceramics can mimic the mineralized ECM of bone and tooth tissues, providing a scaffold for cell attachment and mineral deposition. Recent advances in the field of bio mimetic materials include the use of nanotechnology and 3D printing to create complex structures with precise control over their size, shape, and mechanical properties. Nanoparticles and nano fibers can be incorporated into bio mimetic materials to enhance their mechanical strength, surface area, and bioactivity. 3D printing can be used to create customized scaffolds that match the shape of the target tissue, allowing for more effective tissue regeneration.
How are political parties in Indonesia responding to the environmental crisis?
Authors: Ishak  , Handoko Tito , Hasanuddin  , Zebua Ben Hansel Netotema
Published: March 2024

The environmental issues of living have become a crucial issue in the development of Indonesia in the last few decades. The issue of environmental management has been a narrative that has always been debated in political controversy events since the collapse of the Soeharto regime, and is still a very difficult homework to solve by the post-Suharto regime. Democracy also continues to push for improvements in environmental governance such as strengthening the role of civil society in overseeing state policies, increasingly sharp media role in investigating environmental damage and corrupt policies, and increasingly open public awareness. Environmental issues such as mining policies, the displacement of forests, the grinding of sea sand, mollusks and so on seem to be not very prominent in political party discussions. Even life-related issues are not central to political parties. Very few political parties put environmental issues in their vision and mission, which is why the study focuses on political narrative and how intensely political parties raise environmental themes in political party discussions in Indonesia. The political approach to the living environment is the basis of this study which is elaborated with netnographic studies to review the political narrative of the life environment by the party.
Women roles for saving energy and net-zero emissions for solar energy
Authors: Retnaningsih Umi Oktyari
Published: March 2024

Climate change and energy issues for saving, consumption, and renewability suffer from illiteracy and ignorance. In the patriarchal society like Indonesia, women performed vital roles in the households. Women can play strategic roles as agents of change i.e. transformation of energy sectors and decision makings. Indonesian Directorate General of Mineral and Coal launched regulation 26/2021 stated that household sector is the main consumer targets for solar energy plant using grid connected. The facts showed middle-high income’s households unlikely install solar panel. Electricity motorcycles and cars do not mean so much when the batteries must be charged with non-renewable sources. Meanwhile, the heat in Pekanbaru is abundance and has potential for solar energy. The research will elaborate perception of 20 educated person and 10 career women on how their energy consumption and the possibility of solar panel usage in their houses using in-depth interviews. The research showed women in Pekanbaru spent at least a half million even two million rupiah per month, especially for air conditioning and hot water. The lack of knowledge of solar energy and solar plant installation led to women roles indecisive.
Constitutional balance: Synchronizing energy and environmental policies with socio-economic mandates
Authors: Abdussamad Zamroni , Harun Amanda Adelina , Muhtar Mohamad Hidayat , Puluhulawa Fenty U. , Swarianata Vifi , Elfikri Nurul Fazri
Published: March 2024

Article 33 of the 1945 Constitution (UUD 1945) has been a focal topic of normative legal study because of the tension it highlights between the competing goals of economic efficiency and social fairness. Public policy, particularly in the areas of energy and the environment, is impacted by this problem. Article 33 of the 1945 Constitution requires the government to exercise control over natural resources. However, this provision sometimes leads to “constitutional extractivism,” which puts efficiency ahead of social justice and environmental sustainability. This problem is especially noticeable in Indonesia’s mining investments, where a concentration on economic expansion at the expense of environmental and social justice is a real risk. Conventional techniques that place too much emphasis on quantitative data or public engagement need to be abandoned in favour of renegotiating objectives in the socioeconomic agenda from a public policy viewpoint. Indicators of social justice and environmental sustainability should be acknowledged as critical factors in the new paradigm. More study is required to align energy and environmental policy with societal and economic imperatives. The effects on society and the environment must be included in any policy that seeks to promote the use of renewable energy. To ensure that policies are just and lasting, they should be evaluated and revised on a regular basis.
Instrumentation de la digue de La Riche : première étape vers un observatoire des interactions sols–climat
Authors: Boussafir Yasmina , Mercadier Dimitri , Saussaye Lucile , Bisson Julien , Patouillard Sébastien , Matynia Anthony , Brulé Christian , Guirado Franck
Published: March 2024

Le changement climatique a des effets perceptibles sur notre environnement immédiat, que ce soit sur la modification de la météorologie, le niveau d’eau dans les rivières, l’intensité des aléas « inondations », la sévérité des étiages ou les niveaux de nappes phréatiques. Les effets indirects pouvant impacter les ouvrages hydrauliques sont malheureusement rarement quantifiés mais commencent à être documentés. Certains gestionnaires commencent également à se préoccuper de ces effets et souhaitent s’en prémunir. La recherche de nouveaux indicateurs de performance des ouvrages en lien avec les effets du changement climatique nécessite de disposer de données quantitatives. L’article présentera l’observatoire des interactions sols–climat mis en place sur la digue de La Riche grâce au partenariat entre la Dreal Centre–Val-de-Loire, Tours Métropole–Val-de-Loire, la Direction départementale des territoires d’Indre-et-Loire, le Cerema et l’université Gustave Eiffel. Les capteurs mis en place en mars 2023 à l’occasion des travaux d’épaississement de la digue de La Riche permettront d’acquérir des données couplées de sol et de météorologie. Le jeu de capteurs prévu pour le suivi comprend des sondes tensiométriques, des sondes de mesure de teneur en eau volumique et de température, une station météorologique, des piézomètres et une caméra. L’interprétation de ces données devrait enrichir notre compréhension des phénomènes et permettre de développer une doctrine concernant l’adaptation des ouvrages en terre de protection contre les inondations au changement climatique. L’article présente le détail de l’instrumentation mise en œuvre et les objectifs recherchés.
Relation entre morphodynamique fluviale et processus d’érosion interne autour des digues de protection : observation multi-échelle d’une rivière aménagée (Agly, Pyrénées-Orientales)
Authors: Girolami Laurence , Bonelli Stéphane , Valois Rémi , Chaouch Naïm , Burgat Jules , Nicoleau Frédéric
Published: March 2024

Ce travail porte sur les mécanismes physiques à l’origine des processus d’érosion interne dans les sols de fondation des digues de protection contre les inondations. La présence de matériaux perméables est le plus souvent associée à la présence d’une paléo-vallée comblée de sédiments alluviaux sous le lit de la rivière et sous les digues ou de paléo-chenaux sableux pouvant s’étendre au niveau de la zone protégée. Le cas des digues de l’Agly montre que plusieurs processus d’érosion interne doivent être pris en compte pour décrire ces phénomènes : l’érosion régressive, l’érosion de contact et la suffusion. L’utilisation combinée des méthodes d’induction électromagnétique (EMI) et de tomographie de résistivité électrique (ERT) est une solution rapide et peu coûteuse qui permet d’imager le sol et de fournir la géométrie des différentes couches. Combinées à des sondages carottés, les résultats obtenus permettent de localiser la profondeur des interfaces et de mettre en évidence plusieurs scenarii possibles d’apparition de résurgences, de sand-boils et de fontis en bordure de digue, ou au niveau du val protégé.
Écrans d’étanchéité dans les levées de la Loire : retour d’expérience sur 10 ans de « deep soil mixing »
Authors: Patouillard Sébastien , Saussaye Lucile , Le Kouby Alain , Gervais Loïc
Published: March 2024

En 2013, la DREAL Centre-Val de Loire a présenté les différentes techniques de renforcement des levées de Loire utilisées depuis la seconde moitié du XX siècle, ainsi que les perspectives attendues de chantiers expérimentaux d’écrans étanches en corps de digues. Ces chantiers ont permis la comparaison de plusieurs techniques de « soil mixing » (2012–2013). En 2019, un premier bilan de ce suivi expérimental à 5 ans ainsi que le retour d’expérience de plusieurs chantiers d’écrans étanches sur les levées de Loire ont été communiqués et présentés. Ces chantiers ont conduit à faire évoluer les approches de conception et de réalisation en exploitant la connaissance des sols (de la digue et de ses fondations) et de la nappe alluviale circulant dans les couches perméables du sous-sol. Depuis lors, les renforcements de digues conduits sur la Loire avec cette technique se sont poursuivis et représentent plus de 32 km. Dans le cadre de travaux de recherche sur la thématique « Vulnérabilité des digues au changement climatique des digues de Loire », un écran a été instrumenté à Montlouis-sur-Loire, en Indre-et-Loire, lors de sa réalisation. L’objet du présent article est de présenter un état des connaissances sur la base des résultats à 10 ans du suivi expérimental (pérennité, rendement, contraintes de mise en œuvre et moyens de contrôle) et de compléter le retour d’expérience sur les chantiers de plus grande ampleur qui ont permis d’adapter la technique (liant ciment ou chaux-ciment, apport en eau, critères de malaxage). L’article présente les conditions dans lesquelles la technique est adaptée mais aussi pointe les limites de son application (types de sols, profondeur, dimension du chantier). Il décrit l’instrumentation à Montlouis-sur-Loire de la levée de Tours Loire amont permettant de mesurer la température et la teneur en eau volumique du matériau sol-ciment en insistant sur deux points : la validation de la méthode d’exécution au moment de la réalisation de l’écran et le choix d’une procédure de suivi pour vérifier la pérennité de ses caractéristiques mécaniques et hydrauliques. L’instrumentation est complétée par 2 piézomètres et une station météorologique. De plus, pour le suivi à long terme, des matériaux ont été prélevés pour tester leur perméabilité. Un carottage dans l’écran a également été effectué 2 ans après sa réalisation et soumis aux mêmes types d’essais.
Les ruptures des digues de protection : mécanismes et approche par scénarios
Authors: Tourment Rémy , Beullac Bruno
Published: March 2024

Les ruptures de digues de protection contre les inondations (dont le résultat final est la brèche et l’inondation qui en résulte dans les zones protégées) sont le plus souvent la conséquence non pas d’un mécanisme de détérioration unique mais d’un enchaînement de mécanismes de détérioration dont certains peuvent, selon les conditions, se dérouler simultanément. L’identification de ces scénarios de défaillance est utile voire nécessaire pour atteindre différents objectifs : dans le cadre de la réalisation de diagnostic structurel, d’analyse du risque, d’étude de dangers, pour bien évaluer la performance de la digue ; dans le cas d’une rupture de digue ou d’une nécessité de confortement, pour adapter au mieux les travaux aux mécanismes ayant causé ou risquant de causer la rupture ; dans le cadre de la mise au point de méthodes d’évaluation des probabilités de rupture, pour être le plus conforme à la réalité des phénomènes et de leurs enchaînements. Les « modes de rupture » classiques (érosion externe, érosion interne, érosion par surverse, glissement, soulèvement hydraulique du pied aval…), qui sont encore souvent considérés dans les diagnostics de digues, sont baptisés du nom d’un seul mécanisme de détérioration, en général le mécanisme initiateur ou prépondérant de scénarios pouvant conduire à la rupture. Cette pratique laisse à penser qu’un seul mécanisme est à l’œuvre lors de la rupture d’une digue, ce qui amène souvent à des erreurs de diagnostic et/ou d’évaluation de performance lors d’études trop rapidement conduites. Par ailleurs, le fait de considérer les enchaînements possibles lors de la conception d’un ouvrage peut amener à une conception plus sûre et/ou dans certains cas, plus économique. Dans cette communication, les auteurs développent les bénéfices de l’utilisation d’une approche par scénarios de défaillance. Les apports issus de plusieurs sources bibliographiques françaises et internationales disponibles sur le sujet sont présentés, ainsi que plusieurs exemples de scénarios simples ou complexes. Une méthode basée sur l’analyse fonctionnelle pour l’identification des scénarios de défaillance possibles pour une digue donnée est exposée.
Management of fixed flexion contracture in primary total knee arthroplasty: recent systematic review
Authors: Sappey-Marinier Elliot , Fernandez Andréa , Shatrov Jobe , Batailler Cécile , Servien Elvire , Huten Denis , Lustig Sébastien
Published: March 2024

Introduction: This study aimed to systematically review the literature and identify the surgical management strategy for fixed flexion contracture in primary total knee arthroplasty (TKA) surgery, pre-, intra-, and post-operatively. Secondary endpoints were etiologies and factors favoring flexion contracture. Materials and methods: Searches were carried out in November 2023 in several databases (Pubmed, Scopus, Cochrane, and Google Scholar) using the following keywords: “flexion contracture AND TKA”, “fixed flexion deformity AND TKA”, “posterior capsular release AND TKA”, “posterior capsulotomy in TKA”, “distal femoral resection AND TKA”. Study quality was assessed using the STROBE checklist and the Downs and Black score. Data concerning factors or strategies leading to the development or prevention of flexion contracture after TKA were extracted from the text, figures, and tables of the included references. The effect of each predictive factor on flexion contracture after TKA was recorded. Results: Thirty-one studies were identified to meet the inclusion and exclusion criteria. These studies described a variety of preoperative and intraoperative factors that contribute to the development or correction of postoperative flexion contracture. The only clearly identified predictor of postoperative flexion contracture was preoperative flexion contracture. Intraoperative steps described to correct flexion contracture were: soft-tissue balancing (in posterior and medial compartments), distal femoral resection, flexion of the femoral component, and posterior condylar resection. However, no study has investigated these factors in a global model. Discussion: This review identified various pre-, intra-, and post-operative factors predictive of post-operative flexion contracture. In practice, these factors are likely to interact, and it is therefore crucial to further investigate them in a comprehensive model to develop an algorithm for the management of flexion contracture.

Level of evidence: IV