bluuebunny/crossref_metadata_2025 huggingface dataset:
Pd NP-loaded covalent organic framework for pH-switched Pickering emulsion catalytic dechlorination
Authors: Wang Han-Hui , Li Fei , Yao Bing-Jian , Dong Yu-Bin
Published: February 2024

A quinoline carboxylic acid-linked and Pd NP-loaded nanoscale covalent organic framework was constructed for the pH-switched recyclable Pickering interfacial catalytic dechlorination reaction.
Recent advances in the fabrication of organic solvent nanofiltration membranes using covalent/metal organic frameworks
Authors: Azadi Elham , Singh Nem , Dinari Mohammad , Kim Jong Seung
Published: February 2024

This review explores the promising role of COFs and MOFs in OSN membranes highlighting their potential for revolutionizing solvent separation and purification across crucial sectors like pharmaceuticals, petrochemicals, and environmental remediation.
Diastereoselective access to C,C-glycosyl amino acids via iron-catalyzed, auxiliary-enabled MHAT coupling
Authors: Lang Mylène , Tardieu Damien , Pousse Benoit , Compain Philippe , Kern Nicolas
Published: February 2024

Novel C,C-glycosyl amino acids were accessed by means of an iron-catalyzed hydrogen atom transfer sequence. Crucially, two-fold diastereocontrol could be achieved in the ‘matched’ coupling of exo-d-glycals with an enantiopure dehydroalanine acceptor.
Water structures on acidic zeolites and their roles in catalysis
Authors: Liu Qiang , van Bokhoven Jeroen A.
Published: February 2024

The recent advances of understanding water structures on acidic zeolites and the revealed distinct roles of water in zeolite catalysis are reviewed.
Recent progress in emerging two-dimensional organic–inorganic van der Waals heterojunctions
Authors: Zhang Qing , Li Menghan , Li Lin , Geng Dechao , Chen Wei , Hu Wenping
Published: February 2024

The latest advancements in two-dimensional organic–inorganic van der Waals heterojunctions, including their classification, construction, and device applications, elucidating their structure–property relationship based on interface engineering.
Towards non-contact pollution monitoring in sewers with hyperspectral imaging
Authors: Lechevallier P. , Villez K. , Felsheim C. , Rieckermann J.
Published: February 2024

This laboratory proof-of-concept study demonstrates that a combination of hyperspectral imaging and data-based chemometric modelling is promising for fast, precise and real-time measurement of wastewater pollution.
(Poly)phenol-related gut metabotypes and human health: an update
Authors: Hu Jiaying , Mesnage Robin , Tuohy Kieran , Heiss Christian , Rodriguez-Mateos Ana
Published: February 2024

(Poly)phenol metabotyping as a tool for tailored nutrition advice. Created with https://BioRender.com.
Improvement of fruit juice quality: novel endo-polygalacturonase II from Aspergillus tubingensis FAT 43 for enhanced liquefaction, clarification, and antioxidant potential
Authors: Pavlović Marija , Margetić Aleksandra , Leonardi Adrijana , Križaj Igor , Kojić Milan , Vujčić Zoran , Šokarda Slavić Marinela
Published: February 2024

PG II derived from A. tubingensis FAT43-derived is a promising enzyme with favourable properties for industrial processes, especially fruit juice processing.
Solvent selection based on a conceptual process design by combining cost evaluation and life cycle assessments for developing new reaction pathways
Authors: Yamaki Takehiro , Nguyen Thuy T. H. , Hara Nobuo , Taniguchi Satoshi , Kataoka Sho
Published: February 2024

Solvent selection combined with conceptual process design is the key to developing sustainable chemical production.
Multifunctional cardiac microphysiological system based on transparent ITO electrodes for simultaneous optical measurement and electrical signal monitoring
Authors: Li Zhangjie , Niu Kai , Zhou Chenyang , Wang Feifan , Lu Kangyi , Liu Yijun , Xuan Lian , Wang Xiaolin
Published: February 2024

We developed a multifunctional cardiac microphysiological system on transparent electrodes, enabling simultaneous electrical signal monitoring and optical observations of cardiac tissue, holding promise for applications in cardiac drug development.
A system for fluid pumping by liquid metal multi-droplets
Authors: Dai Liyu , Wu Xiaomin , Hou Huimin , Hu Zhifeng , Lin Yukai , Yuan Zhiping
Published: February 2024

Cuboid pump systems driven by liquid metal multi-droplets using pillars to restrain the motion of droplets are designed, which achieve a significant increase in the flow rate of the pump.
Non-line-of-sight synthesis and characterization of a conformal submicron-thick cationic polymer deposited on 2D and 3D substrates
Authors: Ford Hunter O. , Chaloux Brian L. , Jugdersuren Battogtokh , Liu Xiao , Klug Christopher A. , Miller Joel B. , Zuo Xiaobing , Swift Michael W. , Johannes Michelle D. , Long Jeffrey W. , Rolison Debra R. , Sassin Megan B.
Published: February 2024

Initiated chemical vapor deposition provides the means to coat thin, conformal polymer films on high surface-area 3D architectures as well as planar substrates.
A robust and high performance copper silicide catalyst for electrochemical CO2 reduction
Authors: Dřínek Vladislav , Dytrych Pavel , Fajgar Radek , Klementová Mariana , Kupčík Jaroslav , Kopeček Jaromír , Svora Petr , Koštejn Martin , Jandová Věra , Soukup Karel , Beranek Radim
Published: February 2024

Copper silicide based electrocatalytical system produces distinguishable main products depending on electrolyte's pH value with both high selectivity and faradaic efficiency. No material deterioration is observed even after 700 hours of operation.
Advantages incorporating V2O5 nanoparticles into PMMA composite membranes for the structural, optical, electrical, and mechanical properties for conductive polymeric membrane applications
Authors: Alsaiari Mabkhoot A. , Morsy Mohamed , Samir Mona , Al-Qahtani Abdulaziz , Aslsaiari Rami , Alsaiari Ali , Kamoun Elbadawy A. , Ali Ahmed I. , Ramzy Galal H.
Published: February 2024

Poly(methylmethacrylate) (PMMA) and PMMA membranes with incorporated vanadium pentoxide (V2O5) nanoparticles were prepared using the solution-casting method with different ratios of dopant (V2O5:0, 0.1, 0.5, 1.0, and 3.0 wt%).
Magnetic iron oxide-based nanozymes: from synthesis to application
Authors: Ghazzy Asma , Nsairat Hamdi , Said Rana , Sibai Obada A. , AbuRuman Aseel , Shraim Alaa S. , Al hunaiti Afnan
Published: February 2024

Iron oxide nanozymes, which are magnetic nanoparticles with enzymatic properties, are explored, including their robust production techniques and diverse applications in the fields of biomedicine and environmental science.
Development of an advanced multiwavelength emission detector for the analytical ultracentrifuge
Authors: Lautenbach Vanessa , Onishchukov Georgy , Wawra Simon E. , Frank Uwe , Hartmann Lukas , Peukert Wolfgang , Walter Johannes
Published: February 2024

An advanced multiwavelength emission detector for the analytical ultracentrifuge is presented which offers improved spectral resolution, reduced systematic signal noise, and increased dynamic range for studying samples in a broad concentration range.
Improvements in properties of polybenzoxazine-based laser-induced graphene (LIG) by alloying with polyimide and modeling of production process
Authors: Lawan Ibrahim , Luengrojanakul Panuwat , Charoensuk Krittapas , Argunam Hariharan , Ahn Cheol-Hee , Rimdusit Sarawut
Published: February 2024

Alloying polybenzoxazine with polyimide have resulted in the production of a tougher substrate with higher thermal stability, char yield. These improvements have impacted positively on the properties of Laser-induced graphene (LIG).
Brønsted acid sites in the Beta zeolite induced highly efficient amidation of styrene in the aqueous phase
Authors: Liu Jiteng , Jia Xueqin , Zhang Lei , Fu Wenqian
Published: February 2024

The acidic mesoporous Beta zeolite, which contains a substantial number of Brønsted acid sites, has been found to efficiently catalyze the amidation of styrene with benzonitrile in the aqueous phase.
In situ topotactic formation of an inorganic intergrowth bulk NiS/FeS@MgFe-LDH heterojunction to simulate CODH for the photocatalytic reduction of CO2
Authors: Li Yuexian , Su Wenli , Wang Xiaoyan , Lu Jun , Zhang Wenkai , Wei Shuo
Published: February 2024

By using of the structural memory effect of LDHs, an inorganic intergrowth bulk heterojunction NiS/FeS@MgFe-LDHs mimic active C-clusters [Ni–4Fe–4S] in Carbon monoxide dehydrogenase, in which unique photogenerated electron transfer channel encouraged carrier separation.
A 1064 nm laser adaptive limiter with visible light transparency based on one dimensional photonic crystals of LiNbO3 defects
Authors: Xu Guichuan , Lu Zhengang , Yuan Jing , Tan Jiubin
Published: February 2024

Herein, we present the investigation of the visible light transparency and optical limiting characteristics of one dimensional photonic crystals with LiNbO3 defects fabricated by the sputtering technique.
Electrostatically hindered diffusion for predictable release of encapsulated cationic antimicrobials
Authors: Eriksson Viktor , Nygren Erik , Bordes Romain , Evenäs Lars , Andersson Trojer Markus
Published: February 2024

Electrostatic coupling reduces the diffusivity of octenidine 10-fold leading to a sustained release maintained for months.
Comparative study on the effects of the inclusion complexes of non-steroidal anti-inflammatory drugs with 2-hydroxypropyl-β-cyclodextrins on dissociation rates and supersaturation
Authors: Oshite Yukiko , Wada-Hirai Ayako , Ichii Risa , Kuroda Chihiro , Hasegawa Kanji , Hiroshige Ryosuke , Yokoyama Hideshi , Tsuchida Tomohiro , Goto Satoru
Published: February 2024

This result suggests that the ratio deemed appropriate in solid-phase analysis may not necessarily align with it is based on the stability constant in the aqueous solution.
Cerium oxide particles: coating with charged polysaccharides for limiting the aggregation state in biological media and potential application for antibiotic delivery
Authors: Chesneau Cléa , Pawlak André , Hamadi Séna , Leroy Eric , Belbekhouche Sabrina
Published: February 2024

We demonstrated the potential of the cerium oxide particles to be employed as an antimicrobial material, more specifically those resistant to antibiotic therapy.
Shrimp oil nanoemulsions prepared by microfluidization and ultrasonication: characteristics and stability
Authors: Rajasekaran Bharathipriya , Singh Avtar , Nilsuwan Krisana , Ma Lukai , Nazeer Rasool Abdul , Benjakul Soottawat
Published: February 2024

Shrimp oil (SO) nanoemulsions stabilized by fish myofibrillar protein, considered as functional foods, were prepared via microfluidization and ultrasonication.
New insight into the plastic deformation mechanisms during the SiO2 phase transition process
Authors: Wei Zhenlun , Li Yubiao , Li Peiyue , Pan Li , Li Wanqing , Hu Xianglin , Gu Yunxiang
Published: February 2024

The removal of lattice impurities is the key to the purification of high-purity quartz (HPQ), especially for the intracell lattice impurities.
Recovery of potassium salt by acidification of crude glycerol derived from biodiesel production
Authors: Komariah Leily Nurul , Arita Susila , Cundari Lia , Afrah Bazlina Dawami
Published: February 2024

Crude glycerol (CG) is a major byproduct of biodiesel production.
Hydrolytic dynamic kinetic resolution of racemic 3-phenyl-2-oxetanone to chiral tropic acid
Authors: Kawasaki Midori , Shirai Takahiro , Yatsuzuka Kenji , Shirai Ryuichi
Published: February 2024

The hydrolytic dynamic kinetic resolution of racemic 3-phenyl-2-oxetanone using a chiral PTC and water-free basic anion exchange resin as the hydroxide ion donor was achieved.
Multifunctional modification polyester with Au@Cu2O–ZnO ternary heterojunction fabricated by in situ polymerization
Authors: Zheng Mi , Jiang Yong , Wang Cheng , Zheng Min , Wang Zuoshan
Published: February 2024

In situ polymerization of Au@Cu2O–ZnO ternary heterojunction has emerged to be an effective approach to multifunctional fibers.
Experimental study of the effects of a magnetic field/magnetic field-ferromagnetic nanocomposite pour point depressant on wax deposition
Authors: Wang Chuanshuo , Liu Yang , Hu Shanwei , Lv Xiaofang , Zhao Biao , Ma Qianli , Zhou Shidong
Published: February 2024

A magnetic field and pour point depressant, as a new avenue for improving the submarine pipeline flow of waxy oils, has attracted increasing attention along with the development of efficient wax mitigation techniques.
Development of NHAcGD2/NHAcGD3 conjugates of bacteriophage MX1 virus-like particles as anticancer vaccines
Authors: Zhao Qingyu , Huang Xuefei , Wu Xuanjun
Published: February 2024

As a novel class of VLP vaccine carrier, the bacteriophage MX1 virus-like particle (VLP) is used for the first time to construct MX1-NHAcGD2 and MX1-NHAcGD3 conjugates. These conjugates can be exciting leads for anticancer vaccines.
Covalent crosslinking chemistry for controlled modulation of nanometric roughness and surface free energy
Authors: Sarkar Debasmita , Dhar Manideepa , Das Avijit , Mandal Sohini , Phukan Anirban , Manna Uttam
Published: February 2024

Here, precise and simultaneous modulation of nanometric roughness and surface free energy is unprecedentedly demonstrated through strategic association of a cross-linking chemistry.
A minimal colloid model of solution crystallization nucleates crystals classically
Authors: Chen Gary , Gallegos Mariah J. , Soetrisno Diego D. , Vekilov Peter G. , Conrad Jacinta C.
Published: February 2024

A fundamental assumption of the classical theories of crystal nucleation is that the individual molecules from the “old” phase associate to an emerging nucleus individually and sequentially.
Energy harvesting and electricity production through dissolved carbon dioxide by connecting two form-stable phase change materials
Authors: Yu Chengbin , Konlan John , Li Guoqiang
Published: February 2024

Herein, we report a new solar energy harvesting approach by connecting two form-stable phase change materials in a moist environment with dissolved carbon dioxide (CO2).
Development of a multi-responsive fluorescence switch system based on a pyrimidine functionalized tetrarylethylene compound
Authors: Wang Renjie , Liu Shunyang , Zheng Chunhong , Mu Yanqun , Li Mengyuan , Li Gang , Pu Shouzhi
Published: February 2024

Synthesis and characterization of two multi-stimuli responsive molecules based on pyrimidine functionalized tetrarylethylene are reported. The properties, including acidichromism, photochromism, metal ion responsiveness, and potential applications in security ink, are investigated.
Insights into the relationship between molecular and order-dependent photostability of ITIC derivatives for the production of photochemically stable blends
Authors: Quiroz Avalos Y. A. , Eynaud Q. , Perkhun P. , Rivaton A. , Köntges W. , Schröder R. R. , Koganezawa T. , Yoshimoto N. , Bharwal A. Kumar , Duché D. , Ruiz C. M. , Margeat O. , Aumaître C. , Demadrille R. , Videlot-Ackermann C. , Ackermann J.
Published: February 2024

A systematic study of the intrinsic photostability of ITIC, ITIC-Th and ITIC-4F in solution, in layers and in blends with donor polymers is done. The temperature effect blends show that the amorphous to crystalline transition promotes stability.
Highly efficient and ultra-stable CsPbBr3 composites for LCD devices and X-ray imaging
Authors: Wang Peng , Wang Zhaoyu , Zhu Meiyi , Cai QiuTing , Huang Hanyan , Tang Chengyuan , Zhang Haoran , Fan Chao , Dai Xingliang , He Haiping , Ye Zhizhen
Published: February 2024

Highly luminescent CsPbBr3-DPSI/MS composites with excellent overall stabilities are synthesized using a solid-state reaction method. These composites exhibit a promising foreground in high-performance LCD and X-ray imaging.
Hierarchically porous closed-pore hard carbon as a plateau-dominated high-performance anode for sodium-ion batteries
Authors: Nagmani  , Manna S. , Puravankara S.
Published: February 2024

Sucrose-derived micro spherical hard carbon with diverse porosity and closed pores exhibits an excellent reversible capacity of 251 mA h g−1 at 1C and capacity retention of 84% after 500 cycles.
Vibrational phenomics decoding of the stem cell stepwise aging process at single-cell resolution
Authors: Wang Yue , Wang Yadi , Li Xueling , Lü Junhong
Published: February 2024

We introduce vibrational spectroscopy to quantitatively measure the phenotypic heterogeneity of senescent stem cells in the aging process at the single cell level.
Stimuli-responsive biotin-anchored prodrug for the targeted delivery of anti-cancer agent NBDHEX with turn-on NIR fluorescence
Authors: Kesarwani Rahul , Pal Nikita , Bhabak Krishna P.
Published: February 2024

Biothiol-responsive turn-on fluorogenic prodrug RK-296 was developed for the sustained delivery of the anti-cancer agent and GSTP1 inhibitor NBDHEX with turn-on NIR fluorescence.
Color tunable luminescence in ThO2:Er3+,Yb3+ nanocrystals: a promising new platform for upconversion
Authors: Das Debarati , Gupta Santosh K. , Parayil Reshmi T. , Modak B. , Sudarshan K.
Published: February 2024

This work demonstrates the suitability of low phonon energy and structurally stable ThO2 oxide host for color tunable upconversion luminescence by modulating the sensitizer concentrations.
Modeling study of the effects of entrainment-mixing on fog simulation in the chemistry–weather coupling model GRAPES_Meso5.1/CUACE CW
Authors: Zhao Yang , Wang Hong , Xu Xiaoqi , Zhang Wenjie , Han Chen , Peng Yue , Lu Chunsong
Published: February 2024

Entrainment-mixing processes of fog with the surrounding ambient air are extremely intricate and impose significant effects on the microphysical and radiative properties of fog.
Advanced bifunctional catalyst design for rechargeable zinc–air batteries
Authors: Wang Tao , Shi Zezhong , Wang Faxing , He Jiarui , Zhong Yiren , Ma Yuan , Zhu Zhi , Cheng Xin-Bing , Ozoemena Kenneth I. , Wu Yuping
Published: February 2024

This review provides an overview of advanced bifunctional catalysts that promotes both oxygen reduction reaction and oxygen evolution reaction in rechargeable zinc–air batteries, and analyses in detail their principles and future development.
Microfluidic systems for infectious disease diagnostics
Authors: Lehnert Thomas , Gijs Martin A. M.
Published: February 2024

This review explores emerging microfluidic-based technologies incorporating innovative assay strategies for infectious disease diagnostics. Our classification scheme is based on the human body systems or pathogen transmission modes.
Solar light-driven hydrogen evolution by co-catalyst-free subphthalocyanine-sensitized photocatalysts
Authors: Dogan Şifa , Güntay Buket , Demircioglu Perihan Kübra , Akyıldız Yigit Osman , Aydın Hasan , Aslan Emre , Can Mustafa , Hatay Patir Imren , Ince Mine
Published: February 2024

Subphthalocyanines (SubPcs) have emerged as promising organic dyes for the development of efficient artificial photosynthetic devices, offering intense absorption in the visible region along with excellent charge transport properties.
Preparation of a silver ferrite-assisted tungsten oxide nanocomposite for efficient sonocatalytic degradation of organic pollutants activated by PMS followed by toxicity evaluation
Authors: Justinabraham Romiyo , Durairaj Arulappan , Vasanthkumar Samuel
Published: February 2024

Sonocatalytic technology combined with ultrasonic irradiation with semiconductor catalyst has attracted much attention to address environmental issues.
Biodegradable mPEG-b-poly(MDO-co-vinyl esters) block copolymers as a viable nanocarrier platform with tuneable disassembly
Authors: Balaji Arunpandian , Prior Amber R. , O'Reilly Rachel K. , Dove Andrew P. , Thurecht Kristofer J. , Bell Craig A.
Published: February 2024

Xanthate-based copolymerisations of MDO and vinyl acetate-derivative monomers using a mPEG macroCTA created degradable amphiphilic block copolymers capable of self-assembly and crosslinking, where type of crosslinking influenced particle disassembly.
Improved synthesis of antiplasmodial 4-aminoacridines and 4,9-diaminoacridines
Authors: Fonte Mélanie , Teixeira Cátia , Gomes Paula
Published: February 2024

Greener, simpler and higher yield methods are greatly desirable for the production of acridines, given their relevance in the therapeutic field. Herein, we report an improved multi-step synthesis of antiplasmodial acridines.
Interactions between zinc and NRF2 in vascular redox signalling
Authors: Yang Fan , Smith Matthew J. , Siow Richard C.M. , Aarsland Dag , Maret Wolfgang , Mann Giovanni E.
Published: February 2024

Recent evidence highlights the importance of trace metal micronutrients such as zinc (Zn) in coronary and vascular diseases. Zn2+ plays a signalling role in modulating endothelial nitric oxide synthase and protects the endothelium against oxidative stress by up-regulation of glutathione synthesis. Excessive accumulation of Zn2+ in endothelial cells leads to apoptotic cell death resulting from dysregulation of glutathione and mitochondrial ATP synthesis, whereas zinc deficiency induces an inflammatory phenotype, associated with increased monocyte adhesion. Nuclear factor-E2-related factor 2 (NRF2) is a transcription factor known to target hundreds of different genes. Activation of NRF2 affects redox metabolism, autophagy, cell proliferation, remodelling of the extracellular matrix and wound healing. As a redox-inert metal ion, Zn has emerged as a biomarker in diagnosis and as a therapeutic approach for oxidative-related diseases due to its close link to NRF2 signalling. In non-vascular cell types, Zn has been shown to modify conformations of the NRF2 negative regulators Kelch-like ECH-associated Protein 1 (KEAP1) and glycogen synthase kinase 3β (GSK3β) and to promote degradation of BACH1, a transcriptional suppressor of select NRF2 genes. Zn can affect phosphorylation signalling, including mitogen-activated protein kinases (MAPK), phosphoinositide 3-kinases and protein kinase C, which facilitate NRF2 phosphorylation and nuclear translocation. Notably, several NRF2-targeted proteins have been suggested to modify cellular Zn concentration via Zn exporters (ZnTs) and importers (ZIPs) and the Zn buffering protein metallothionein. This review summarises the cross-talk between reactive oxygen species, Zn and NRF2 in antioxidant responses of vascular cells against oxidative stress and hypoxia/reoxygenation.
Design and implementation of a cost‐effective practical single‐phase power quality analyzer using pyboard microcontroller and python‐to‐python interface
Authors: Sabahi Mehran , Safari Ashkan , Nazari‐Heris Morteza
Published: February 2024

This work presents the design, development, and performance evaluation of a cost‐effective and practical single‐phase power quality analyzer (SPPQA) using Pyboard microcontroller and Python‐to‐Python interface. The SPPQA offers comprehensive measurements, including voltage/current harmonics up to the seventh order, frequency, voltage and current root mean square values, total power, active/reactive power, power factor, voltage and current crest factor, as well as voltage/current total harmonic distortion. To ensure the accuracy of the SPPQA, a testing procedure was conducted using a test bench equipped with a non‐linear load and a 220‐V power source operating at a frequency of 50 Hz. The obtained results, such as and , are compared with measurements obtained from classical approaches and devices, validating the authenticity and reliability of the SPPQA's performance. The SPPQA demonstrates considerable accuracy and reliability in its measurements, establishing it as an efficient and practical tool for power quality assessment. The ability to measure the seven harmonics of voltage and current, alongside other critical parameters, positions the SPPQA as a practical asset in the academic, industrial, and commercial sectors. The affordability and practicality of the SPPQA make it practical in both academic research and practical scenarios. Utilizers can gain deeper information into power quality through its measurements and harmonics analysis, while also enhancing industrial processes and ensuring a reliable power supply in commercial settings.
Evidence of evolution of the black hole mass function with redshift
Authors: Rinaldi Stefano , Del Pozzo Walter , Mapelli Michela , Lorenzo-Medina Ana , Dent Thomas
Published: February 2024

Aims.We investigate the observed distribution of the joint primary mass, mass ratio, and redshift of astrophysical black holes using the gravitational wave events detected by the LIGO-Virgo-KAGRA collaboration and included in the third gravitational wave transient catalogue.

Methods.We reconstructed this distribution using Bayesian non-parametric methods, which are data-driven models able to infer arbitrary probability densities under minimal mathematical assumptions.

Results.We find evidence that both the primary mass and mass-ratio distribution evolve with redshift: our analysis shows the presence of two distinct subpopulations in the primary mass−redshift plane, with the lighter population, ≲20 M⊙, disappearing at higher redshifts,z > 0.4. The mass-ratio distribution shows no support for symmetric binaries.

Conclusions.The observed population of coalescing binary black holes evolves with look-back time, suggesting a trend in metallicity with redshift and/or the presence of multiple redshift-dependent formation channels.
Extreme FeLoBAL outflow in the VLT/UVES spectrum of quasar SDSS J1321−0041
Authors: Byun Doyee , Arav Nahum , Sharma Mayank , Dehghanian Maryam , Walker Gwen
Published: February 2024

Context. Quasar outflows are often analyzed to determine their ability to contribute to active galactic nucleus (AGN) feedback. We identified a broad absorption line (BAL) outflow in the VLT/UVES spectrum of the quasar SDSS J1321−0041. The outflow shows troughs from Fe II, and is thus categorized as an FeLoBAL. This outfow is unusual among the population of FeLoBAL outflows, as it displays C II and Si II BALs.

Aims. Outflow systems require a kinetic luminosity above ∼0.5% of the quasar’s luminosity to contribute to AGN feedback. For this reason, we analyzed the spectrum of J1321−0041 to determine the outflow’s kinetic luminosity, as well as the quasar’s bolometric luminosity.

Methods. We measured the ionic column densities from the absorption troughs in the spectrum and determined the hydrogen column density and ionization parameter using those column densities as our constraints. We also determined the electron number density, ne, based on the ratios between the excited-state and resonance-state column densities of Fe II and Si II. This allowed us to find the distance of the outflow from its central source, as well as its kinetic luminosity.

Results. We determined the kinetic luminosity of the outflow to be 8.4−5.4+13.7 × 1045 erg s−1 and the quasar’s bolometric luminosity to be 1.72 ± 0.13 × 1047 erg s−1, resulting in a ratio of Ėk/LBol = 4.8−3.1+8.0%. We conclude that this outflow has a sufficiently high kinetic luminosity to contribute to AGN feedback.
Steep-spectrum AGN in eROSITA Final Equatorial-Depth Survey (eFEDS): Their host galaxies and multi-wavelength properties
Authors: Iwasawa K. , Liu T. , Boller Th. , Buchner J. , Li J. , Kawaguchi T. , Nagao T. , Terashima Y. , Toba Y. , Silverman J. D. , Arcodia R. , Dauser Th. , Krumpe M. , Nandra K. , Wilms J.
Published: February 2024

We selected sources with a steep soft-X-ray-band spectrum with a photon index of Γ > 2.5 – measured by eROSITA on board the Spectrum-Röntgen-Gamma (SRG) – from the eFEDS AGN catalogue as candidates of highly accreting supermassive black holes, and investigated their multi-wavelength properties. Among 601 bright AGN with 0.2−5 keV counts of greater than 100, 83 sources (≈14%) are classified as steep-spectrum sources. These sources have typical 0.5−2 keV luminosities of LSX ≈ 1044 erg s−1 and the majority of them are found at redshifts below z = 1. In comparison with sources with flatter spectra, these sources have, on average, a UV (or optical) to 2 keV luminosity ratio that is larger by ∼0.3 dex and bluer optical-to-UV continuum emission. They also appear to be radio quiet based on the detection rate in the FIRST and VLASS surveys. Their host galaxies – at least in the redshift range of z = 0.2 − 0.8, where the AGN–galaxy decomposition results from the Subaru Hyper Suprime-Cam imaging are available – tend to be late-type and have smaller stellar masses (M⋆ ∼ 1010.5 M⊙) than those of sources with flatter spectra. These properties are similar to those found in nearby narrow-line Seyfert 1 galaxies, in agreement with the picture that they are AGN with elevated accretion rates and are in the early growth phase of black hole and galaxy co-evolution. However, the steep-spectrum sources are not exclusively narrow-line Seyfert 1 galaxies; indeed many are broad-line Seyfert 1 galaxies, as found by a catalogue search. This suggests that these steep-spectrum sources may be black holes generally with high accretion rates but of a wide mass range, including a few objects emitting at LSX ≥ 1045 erg s−1, of which black hole masses can be close to 109 M⊙.
A catalogue of observed geo-effective CME/ICME characteristics
Authors: Mugatwala Ronish , Chierichini Simone , Francisco Gregoire , Napoletano Gianluca , Foldes Raffaello , Giovannelli Luca , De Gasperis Giancarlo , Camporeale Enrico , Erdélyi Robertus , Del Moro Dario
Published: February 2024

One of the goals of Space Weather studies is to achieve a better understanding of impulsive phenomena, such as Coronal Mass Ejections (CMEs), to improve our ability to forecast their propagation characteristics and mitigate the risks to our technologically driven society. The essential part of achieving this goal is to assess the performance of forecasting models. To this end, the quality and availability of suitable data are of paramount importance. In this work, we merged publicly available data of CMEs from both in-situ and remote observations in order to build a dataset of CME properties. To evaluate the accuracy of the dataset and confirm the relationship between in-situ and remote observations, we have employed the Drag-Based Model (DBM) due to its simplicity and modest consumption of computational resources. In this study, we have also explored the parameter space for the drag parameter and solar wind speed using a Monte Carlo approach to evaluate how efficiently the DBM determines the propagation of CMEs for the events in the dataset. The geoeffective CMEs selected as a result of this work are compliant with the hypothesis of DBM (isolated CME, constant solar wind speed beyond 20 R⊙) and also yield further insight into CME features such as arrival time and arrival speed at L1 point, lift-off time, speed at 20 R⊙ and other similar quantities. Our analysis based on the acceptance rate in the DBM inversion procedure shows that almost 50% of the CME events in the dataset are well described by DBM as they propagate in the heliosphere. The dataset includes statistical metrics for the DBM model parameters. The probability distribution functions (PDFs) for the free parameters of DBM have been derived through a Monte Carlo-like inversion procedure. Probability distribution functions obtained from this work are comparable to PDFs employed in previous works. The analysis showed that there exist two different most probable values (median values) of solar wind speed for DBM input based on slow (wslow ≈ 386 km/s) and fast (wfast ≈ 547 km/s) solar wind type. The most probable value for the drag parameter (γ ≈ 0.687 × 10−7 km−1) in our study is somewhat higher than the values reported in previous studies. Using a data-driven approach, this procedure allows us to present a homogeneous, reliable, and robust dataset for the investigation of CME propagation. Additionally, possible CME events are identified where the DBM prediction is not valid due to model limitations and higher uncertainties in the input parameters. These events require further thorough investigation in the future.
Oro-Ocular Cleft: A Case Repori
Authors: Husain M. T.
Published: February 2024

A case of oro-ocular cleft Type I has been reported with comments on the interesting features of the case.
Groin Flap—Report of a case
Authors: CN Malla , PA Rashid , Brijmohan Bhan
Published: February 2024

Study of acase of groin flap was carried out in the Department of Surgery, Medical college, Srinagar, Merits of the flap have already been discussed.
Soft Tissue Reconstruction of Nasal Defects
Authors: keswani R. K. , Dadoo R. C. , Chabbra H. L.
Published: February 2024

A large variety of soft tissue lesions of the nose are presented. The different operative procedures used are discussed, and preference for a surgical procedure in a particular situation is indicated.
Orofacial Malformations in the Rat Foetuses Induced by Hypervitaminosis A
Authors: Singh Shamer , Singh Gurpreet
Published: February 2024

Single oral administration of 100,000 IU of vitamin A palmitate in oil to pregnant wistar rats on 8th, 9th or 10th day of gestation resulted in malformations of the tongue, jaw; lower lip and palate in 82%, live-born foetuses. The frequency and severity of defects were most marked in the group treated on the 9th day. Clefts of the jaw, lip, tongue and palate were practically coufined to the 9th day treated group. Of great interest were the clefts in the lower lips which varied from a mere chink to a wide gap splitting the lower jaw as well. The cleft tongue protruded through the gap and folded on itself, giving a false appearence of muitiple clefts in the lower lips.
Biochemical study of collagen formation in healing wounds under the effect of Serotonin (5-Hydroxytryptamine)*
Authors: Sinha R. N. , Malla C. N.
Published: February 2024

The change in the concentration of a
component of biochemical interest was studed over a period of 15 days under the effect of serotonin.

The component studied was hydroxyproline (Collagen), study was made on two sets albino rats, one comprising of normally healing wounds and the other serotonin treated wounds.

Study was made on 3rd, 6th, 9th, 12th and 15th postoperative days. Wound area included skin, subcutaneous tissue and the underlying muscle. Equal amounts of tissue were excised on either side of the wound. Serotonin was injected intraperitonealy into the rats labelled as ‘treated on 2nd, 5th, 8th, 11th and 15th postoperative days.

Hydroxyproline content was estimated in excised tissue.

Difference in the hydroxyproline content of normal healing wounds and those treated with serotonin is discussed.

It has been reported in this review that there is net diminusion of collagen content in serotonin treated wounds expressed as amount in grams%, of dry tissue.
Aetiology and Statistics in Cleft Lip and Palate
Authors: Gupta Dr. J. L. , Bhatnagar Dr. S. K. , Srivastava Dr. J. L.
Published: February 2024

1. 1326 cases have been seen during the last ten years (1963-1973) in the department of Burns, Plastic and Maxillofacial Surgery. Safdarjung Hospital, New Delhi-16.

2. The numerous operative factors in the causation of cleft have been studied.

3. Male preponderance has been seen in group I and group III, cases.

4. Incidence of cleft is worked out as 1: 897.

5. Genetic counselling has been worked out.

6. Socio-economic status could not offer any satisfactory clue towards the ctiology.

7. Ingnorance or unwillingness to reveal the positive family history on the part of the parents may be the major factor for the low incidence of definite genetic inheritance.
Oto-Mandibular Dysostosis
Authors: Chandra Ramesh , Shaima R. N. , Yadava V. N.S.
Published: February 2024

14 patients of otomandibular dysostosis arare congenital anamoly of Ist branchial arch have been presented. Two patients had bilateral defects while there was Palatal paralysis, facial paralysis, disburbed occlusal pattern, bilateral epicanthal folds and involvement of the 2nd arch tubercles as associated abnormalities in other cases. The abnormality affected the males and the left side of the face predominantly. Patients were satisfied with correction of the musculoskeletal deformities associated with this svndrome.
Severe Bilateral Upper Palpebral Coloboma and Bifid Nasal Tip
Authors: Chowdhury Joya
Published: February 2024

A case of severe bilateral congenital coloboma of the upper eyelids, also having bifid nasal tip is recorded.
Penile Horn—A Case Report
Authors: Kumar Ashok , Yaday V. N. S. , Sharma R. N. , Agarwal Mrs. P. K.
Published: February 2024

A case of penile horn, a rare entity has been reported. It was treated by wide local excision.
Management of Fibrous Dysplasia of the Mandible By Excision And Bone Grafting
Authors: Tiwari I. N. , Venkatratnam D. , Mehdiratta K. S. , Srivastava K. K.
Published: February 2024

The occurance of fibrous dysplasia as & mopo-ostotic lesion on the mandible is comparatively rare. Authors had occasion to treat a young patient by total excision of the growth and replacement of the defect of the mandible by a bone graft.
Some Aspects Of Burned Epileptics
Authors: Chari P. S.
Published: February 2024

Some aspects of burned epileptics, as seen in Chandigarh, have been described. the relavant literature has been briefly reviewed.
Certain Problems of Anaesthesia in Plastic Surgery
Authors: Paul A. K. , Chowdhury Joya , Ganguli A. C.
Published: February 2024

150 cases of cleft lip and palate, 52 cases of oral cancer and 48 cases of neck contracture and trismus were operated under general anaesthesia during last two and half years. The series describes their anaesthetic management, complications and problems of anaesthesia associated with them.
Analysis of the Cases of Injuries of Hand
Authors: Sen Ratna
Published: February 2024

All cases of hand injuries admitted to the Plastic Surgery Unit. S.S.K.M. Hospital have been reviewed. Age and sex incidence are shown. Importance of hand injuries due to industrial accidents is stressed. Prophylactic measures to prevent these accidents have been explained in brief. The principles of treatment of hand injuries, carried out in this Unit, are mentioned.
Palmer Split Grafts for Defects of Palm, Fingers and Sole
Authors: Lodha S. C. , Harsha M. K. , Singhvi A. M. , Lohra C. K.
Published: February 2024

The palm has proved to be the most satisfactory domor site for the defects of the palm, fingers and sole of the foot.

Our results were superior by this method—over the other methods we had tried.
Management of Bilateral Cleft Lip with Protruding Premaxilla
Authors: Sharma L. K.
Published: February 2024

Experience in the management of bilateral cleft lip with protruding premaxilla has been presented. A simpie technique of lip repair is described and the resulis of 45 cases of bilateral cleft lip, repaired by this technique, are presented. A study of lip pressure on the protruded premaxilla was done and it revealed that surgical retropositioning of the premaxilla was not necessary in all cases.
Stone Formation Following Repair of Epispadias with Subcutaneous Pedical Flap From Scrotum: A Case Report
Authors: Keswani R. K. , Jain R. L.
Published: February 2024

A case of Epispadias type III was operated in July, 1963 when chordee was released and the urethral mucosal defect produced in the post-urethra was covered by a 1.3×1.3 cm subcutaneous scrotal flap brought dorsally through a gap created between the crurae. Urethral reconstruction was done from the local tissues. After eight years patient reported with a giant stone in the urethra at the site of the scrotal flap.
Methylmethacrylic Ball Interpositional Arthroplasty in Ankylosis of Temporomandibular Joint-A Case Report
Authors: Bilwani P. K.
Published: February 2024

A case of unilateral temporo mandibular joint ankylosis following middle ear infection is presented.

The method employed is an attempt to improve the results of arthroplasty by using acrylic as a spacer between the bone fragments. An emphasis has been laid on the specific postoperative management of allowing the patient to move jaws after forty Eight hours and to use the rubber wedge in between the molar teeth to avoid open bite. We agree with Kruger (1968) that early vigorous and sustained postoperative jaw dilation is essential otherwise arthroplasty may fail.
Scalping Flap Technique in Sub Total Reconstruction of Nose
Authors: Bafna P. L. , Sharma Kamla , Mehta P. M.
Published: February 2024

The scalping flap technique is an excellent technique in cases of sub-total reconstruction of nose where forehead skin is available. This illustration presents results obtained in two patients operated by us.
Articulation Defects in Cleft Palate Cases
Authors: Pandit Rama , Abrol B. M. , Srinivas P. S.
Published: February 2024

The present study was conducted on 56 cases of cleft palate and/or lip attending the Rehabilitation Unit in Audiology and Speech Pethology, All India Institute of Medical Sciences, New Delhi. Cleft palate was found to be more prevalent in males than females. 75% of the cases were below the age of 14 years, Only a few parents could give relevant history. It was, therefore, difficult to establish and generalise the causative factors. 29% of the cleft palate cases had mild to moderate degree of hearing loss. About 42% of the cases had undergone palate surgery and 35% both the lip and palate surgery. Many cases reported late for surgical treatment. Velar sounds among all the consonants were found to be substituted most and fricatives were distorted. Distortion was the most common defective articulatory pattern in the cleft palate cases while omissions were least affected. There has been numerous investigations designed to describe the speech articulation on cleft palate. The studies vary in terms of subjects used and the methods of assessment. Yet there is a general agreement on this problem. Plosives, fricatives and consonants which require building up of maximum oral pressure are the most affected sounds in cleft palate speech.
Skin Cancer in Varanasi
Authors: Tripathi F. M. , Khanna S. , Khanna N. N. , Sinha J. K.
Published: February 2024

In present study 100 cases of skin cancer over a period of three years have been studied. Diagnosis of each lesion is comfirmed by histology. Incidence of epithelioma of skin is much more as compared with basal cell carcinoma and melanoma. Various sites of these tumours are also noted. Lymph node metastasis is quite early in cases of melanoma.
Use of Local Flaps in the Management of Recurrent Recto-Veginal Fistula (With Imperforate Anus)
Authors: Gupta Malti , Chandalia B. S.
Published: February 2024

We recommend local flaps in the management of recurrent rectovaginal fistula for following reasons:

(i) The flap brings healthy vascular tissues to the site of fistula where lot of fibrosis is present following previous operations, thus healing of tissues is promoted.

{ii) It reinforces the site of repair by being interposed posterior to the posterior vaginal wall.

(iii) It enlarges the anal opening in cases with anal stenosis unresponsive to routine treatment.

(iv) It brings additional skin between the anal and vaginal openings, thus maintaining them at normal distance in those cases where the openings are situated close together with very little, hypoplastic tissue in between.

The flap, unlike split skin graft, grows with the growth of the body, so that chances of future stenosis and recurrence are nil. This is important particularly in children.

(vi) The procedure is comparatively simple and safe, more so in the under nourished child, and makes major surgical procedures unnecessary.

(vii) The duration of hospital stay is markedly curtailed and so is the economic burden of prolonae hospitalisation.
Clinicopathological Study of Oral Cancer*
Authors: Tripathi F. M. , Khanna S. , Khanna N. N. , Chari C. T. S. , Sinha J. K.
Published: February 2024

Present study is based on the observations of 25 cases of oral cancer. Males are affected more commonly in S5th and 6ih decade. Clinical lymphadenopathy in the neck is observed in 84% of cases which was confirmed on hisiology in only 56% cases. Clinically the disease is more advanced than its histological grade. Inflammatory infiltrate in the primary tumour and germinal centre hyperplasia, paracortical activity and sinus histiocytosis in the Iymphnodes are suggestive of immunological response against the tumour whereas capsular and pericapsular invasion of lymph nodes are suggestive of poor prognosis.
Reconstruction of Nasal Tip Defect
Authors: Sawhney C. P.
Published: February 2024

Our experience with nasal tip reconstructions using angular mid line forehead flap is presented. This flap has been shown to be better because it provides additional length.
Industrial Thumb Injuries – A Review of 63 Cases
Authors: Chari P. S. , Soni S. K.
Published: February 2024

Sixty three patients with thumb injuries caused in industrial accidents have been review d. Some of the factors bearing on such injuries have been briefly discussed.
China’s shadow banking in 2020–2022: an empirical study
Authors: Li Wenzhe
Published: February 2024

Despite renewed regulatory attention, shadow banking across the globe is still a nonnegligible part of economic life. This paper researches China’s shadow banking during 2020–2022, a stage marked by COVID-19 and strengthened global regulation on Non-Bank Financial Intermediation (NBFI). Its business model surprisingly resembles its Western peers, funding underserved sectors and having similar exposure to balance sheet mismatch. Uninsured interbank funds and wealth management products support massive holding of bond investment (36.6% of the total assets), making risk contagion easier. This paper re-summarizes growth dynamics in a “Pull-Push” framework and proposes the concept of reintermediation corresponding to disintermediation. Consecutive regulation on NBFI and the real estate sector kept dragging on growth, rendering it in liquidity surplus. We provide empirical evidence on the relationship of China’s shadow banking with macro-finance and note several breakdowns of pre-pandemic relations among economic and financial indicators. The most remarkable breakdown is the weakened functionality of the monetary policy transmission channel. Besides, it continued to twist financial regulatory indicators to a lesser extent.
Risk assessments of virtual interactions on Saudi families
Authors: Moubarak Hanaa Faize A. , Afthanorhan Asyraf
Published: February 2024

Family relationships are the basis for a stable family atmosphere. Now with the internet, which has become a tangible part of our lives, membership of virtual communities, including social networks, has grown. It has created fundamental changes in the structure of social relationships and human interaction, forming a new framework of virtual interactions that transcend international borders. Due to their significance, unavoidability, availability, confidentiality, ease of use, and intrusive nature through interaction and sharing, virtual communities now extend beyond the individual and related level of risk. This study aimed to assess the cultural and behavioral risks of virtual interactions for Saudi families and their level of incidence and likelihood. It belonged to descriptive studies, using the social survey for a sample (1524) from Hail region families between 15 December 2022 and 31 January 2023, and was based on the list of cultural and behavioral risks of virtual interactions. Results showed that the most dangerous social networking sites for Saudi families were TikTok, Twitter, Snapchat, YouTube, and Instagram respectively. Matrix results showed that 66.7% of virtual interaction threats have a high severity and likelihood, namely: adopting atheistic ideas, spreading the thought of hate, undermining the values of the Saudi family, and adopting ideas that incite violence from cultural threats, privacy hacks, cyber-bullying, fraud, violence, social isolation and cybercrime from behavioral threats. The study recommends adopting a social risk management (SRM) concept, especially regarding risks to family, because it is a new dimension of social protection.