bluuebunny/crossref_metadata_2025 huggingface dataset:
Phase stability of entropy stabilized oxides with the α-PbO2 structure
Authors: Aamlid Solveig S. , Johnstone Graham H. J. , Mugiraneza Sam , Oudah Mohamed , Rottler Jörg , Hallas Alannah M.
Published: June 2023

The prediction of new high entropy oxides (HEOs) remains a profound challenge due to their inherent chemical complexity. In this work, we combine experimental and computational methods to search for new HEOs in the tetravalent AO2 family, using exclusively d0 and d10 cations. Our aim is to explain the phase stability of the α-PbO2 structure, which is found for the medium entropy oxide (Ti, Zr, Hf, Sn)O2. Using a pairwise approach to approximate the mixing enthalpy, we confirm that α-PbO2 is the expected lowest energy structure for this material above other candidates including rutile, baddeleyite, and fluorite structures. We also show that no other five-component compound composed of the tetravalent cations considered here is expected to form under solid state synthesis conditions, which we verify experimentally. Ultimately, we conclude that the flexible geometry of the α-PbO2 structure can be used to understand its stability among tetravalent HEOs.
Superior cyclability of high surface area vanadium nitride in salt electrolytes
Authors: Kasten James , Hsiao Cheng-Che , Johnson Denis , Djire Abdoulaye
Published: June 2023

High surface area vanadium nitride based supercapacitors using aqueous Mg salt electrolytes.
Fabrication of anhydride core-based conductive layered Ni-MOF nanoflakes for high performance supercapacitors
Authors: Asiwal Ekta P. , Nishad Harishchandra H. , Gujja Chaturvedi S. , Walke Pravin S. , Pawar Suresh D.
Published: June 2023

This schematic representation shows the nanoflakes-layered Ni-MOF, which is synthesized from a specific N-trimellitylimido dicarboxylic acid linker. Electrochemical investigation shows that anhydride MOFs are potential electrode materials for hybrid supercapacitors.
Additive engineering in CH3NH3PbBr3 single crystals for terahertz devices and tunable high-order harmonics
Authors: Khanam Sarvani Jowhar , Konda Srinivasa Rao , Premalatha Azmeera , Ketavath Ravi , Fu Wufeng , Li Wei , Murali Banavoth
Published: June 2023

A cost-effective technique to grow high-quality transparent MAPbBr3 (MA) perovskite single crystals (SCs) using various aliphatic, aromatic, and chiral additives was demonstrated for tunable high harmonics generation (HHG) studies.
Optical absorption and dichroism of single melanin nanoparticles
Authors: Regan David , Mavridi-Printezi Alexandra , Payne Lukas , Montalti Marco , Borri Paola , Langbein Wolfgang
Published: June 2023

The optical properties of individual Melanin nanoparticles (NPs) are studied, revealing the distribution of size, shape, absorption and dichroism for natural and synthetic NPs.
An ambient pressure, direct hydrogenation of ketones
Authors: Zhang Long , Lu Zhiyao , Rander Andrew R. , Williams Travis J.
Published: June 2023

We report two bifunctional (pyridyl)carbene-iridium(i) complexes that catalyze ketone and aldehyde hydrogenation at ambient pressure.
Hybrid plasmonic metasurface as enhanced Raman hot-spots for pesticide detection at ultralow concentrations
Authors: Bdour Yazan , Beaton Graham , Gomez-Cruz Juan , Cabezuelo Oscar , Stamplecoskie Kevin , Escobedo Carlos
Published: June 2023

A surface-enhanced Raman scattering (SERS) active metasurface composed of metallic nanohole arrays and metallic nanoparticles is developed.
Synthesis of graphene anchored with atomically isolated cobalt from a promising graphite-like supramolecule
Authors: Zheng Guoli , Zhou Shunfa , Zhou Xuan , Wen Ding , Xu Jinhui , Li Lingling , Jiang Danyong , Cai WeiWei , Fan Weiqiang , Shi Weidong , Song Shuyan
Published: June 2023

A facile preparation strategy of graphene with Co,N-doping (CoN-graphene) via pyrolysis exfoliation from a “graphite-like supramolecule” has been proposed for ORR catalysis and 100% direct methanol fuel cell performance was achieved.
Thermally stable proton conductivity from nanodiamond oxide
Authors: Ardhayanti Lutfia Isna , Islam Md. Saidul , Fukuda Masahiro , Liu Xinyao , Zhang Zhongyue , Sekine Yoshihiro , Hayami Shinya
Published: June 2023

Nanodiamond oxide (NDOx) with efficient proton conductivity and stability at high temperatures is reported. NDOx possesses hydrophilicity and the retention of functional groups at elevated temperatures can be attributed to the high proton conductivity and thermal stability.
Facile route of fluorine incorporation into nickel (oxy)hydroxide for improving the oxygen evolution reaction
Authors: Jang Yeongeun , Ha Seungjoon , Lim Hyung-Tae , Lee Seunghwa
Published: June 2023

A facile electrochemical approach of incorporating fluorine into a Ni surface at room temperature for enhancement of the alkaline oxygen evolution reaction.
Perfluoroalkoxylation reactionviadual concurrent catalysis
Authors: Fujioka Shota , Hirano Keiichi , Hoshiya Naoyuki , Yamauchi Akiyoshi , Kishikawa Yosuke , Uchiyama Masanobu
Published: June 2023

The CsI-catalyzed metamorphosis of the poorly reactive reactants to the hot pair is effective for the installation of perfluoroalkoxy groups.
A DNA framework-based dual signal amplification biosensor for portable detection of SARS-CoV-2 and its mutations
Authors: Dou Yanzhi , Huang ZiYue , Li Tie , Maboyi Nokuzola , Ding Xianting , Song Shiping , Su Jing
Published: June 2023

Benefitting from a DNA framework-modified ordered interface and a dual signal amplification strategy, a biosensor with a home-made smartphone could detect SARS-CoV-2 and distinguish its mutations.
Structural variety and dehydration in 3-aminopyridine–hypodiphosphoric acid–water system
Authors: Budzikur-Maciąg Daria , Kinzhybalo Vasyl , Ślepokura Katarzyna
Published: June 2023

Organic–inorganic salts and ionic co-crystals of hypodiphosphoric acid (H4P2O6) with 3-aminopyridine and products of their dehydration have been characterized by XRD (single-crystal and micro-powder), TGA and FT-IR spectroscopy.
Impact of lanthanide ion complexation and temperature on the chemical reactivity of N,N,N′,N′-tetraoctyl diglycolamide (TODGA) with the dodecane radical cation
Authors: Horne Gregory P. , Celis-Barros Cristian , Conrad Jacy K. , Grimes Travis S. , McLachlan Jeffrey R. , Rotermund Brian M. , Cook Andrew R. , Mezyk Stephen P.
Published: June 2023

Ln(iii) complexation by TODGA led to enhanced chemical reactivity with RH˙+ from electron pulse irradiation. Average local ionization energy calculations indicate that this enhancement is likely due to preferential reaction at nitrate counter ions.
Enhanced photocatalytic activity of Ag@g-C3N4 nanotubes by regulating photogenerated carriers to bypass the recombination center under the Lorentz force
Authors: Yang Libin , Bo Chang , Wu Runjin , Xu Shijia , Li Qian , Ding Yan , Gao Chenyu
Published: June 2023

Under the synergistic action of the Lorentz force and Ag nanoparticles, the photocatalytic activity of g-C3N4 was increased by 200%.
Long aliphatic chain derivatives of trigonal lanthanide complexes
Authors: Zhou Yiwei , Buch Christian D. , Hansen Steen H. , Piligkos Stergios
Published: June 2023

Two trigonal lanthanide complexes are post-derivatised with n-octadecyl chains. The post-derivatisation leads to large changes in their chemical properties such as enhanced solubility, but minimal changes to their electronic and magnetic properties.
A bis-calix[4]arene-supported [CuII16] cage
Authors: Wilson Lucinda R. B. , Coletta Marco , Singh Mukesh K. , Teat Simon J. , Brookfield Adam , Shanmugam Muralidharan , McInnes Eric J. L. , Piligkos Stergios , Dalgarno Scott J. , Brechin Euan K.
Published: June 2023

A [CuII16] cluster based on a tetra-capped square prism is constructed using 2,2′-bis-p-tBu-calix[4]arene.
Interaction of surface cations of cleaved mica with water in vapor and liquid forms
Authors: Franceschi Giada , Brandstetter Sebastian , Balajka Jan , Sokolović Igor , Pavelec Jiří , Setvín Martin , Schmid Michael , Diebold Ulrike
Published: June 2023

XPS and atomically resolved nc-AFM shed light on the interaction of the surface K+ ions of muscovite mica with water vapor and liquid water under ultraclean conditions.
Correction: Deep Shotgun metagenomic and 16S rRNA analysis revealed the microbial diversity of lactic acid bacteria in traditional fermented foods of eastern Hainan, China
Authors: Wu Yuqing , Li Ao , Chen Lin , Chen Qianxi , Li Jiyang , Xu Yanqing , Huo Dongxue
Published: June 2023

Correction for ‘Deep Shotgun metagenomic and 16S rRNA analysis revealed the microbial diversity of lactic acid bacteria in traditional fermented foods of eastern Hainan, China’ by Yuqing Wu et al., Food Funct., 2022, 13, 12938–12952, https://doi.org/10.1039/D2FO02501A.
Vault, viral, and virus-like nanoparticles for targeted cancer therapy
Authors: Iravani Siavash , Varma Rajender S.
Published: June 2023

Recent advancements pertaining to the applications of vault, viral, and virus-like NPs in targeted cancer therapy are deliberated, focusing on challenges and perspectives.
High-performance artificially reeled silkworm silk via a multi-task and high-efficiency centrifugal reeling technique and its application in soft actuators
Authors: Hou Teng , Li Xianglong , Liu Shu , Zhou Jing , Bian Yujing , Zhou Lele , Sun Mingbo , Zhou Wenlong , Yang Bin
Published: June 2023

High-performance artificially reeled silkworm silk was obtained via a multi-task and high-efficiency centrifugal reeling technique. The centrifugally reeled silk exhibits excellent strength, high toughness, and outstanding Young's modulus.
Wide-temperature-range multispectral camouflage enabled by orientation-gradient co-optimized microwave blackbody metastructure coupled with conformal MXene coating
Authors: Yao Li , Pan Longkai , Zhou Shixiang , Liu Hongxia , Mei Hui , Li Yang , Dassios Konstantinos G. , Colombo Paolo , Cheng Laifei , Zhang Litong
Published: June 2023

An orientation-gradient co-optimized graded Gyroid-shellular (GGS) SiOC-based metastructure with conformal MXene coating (MXene@SiOC) is proposed to achieve wide-temperature-range microwave/infrared/1.06 μm-laser/visible-light-compatible camouflage.
In vitrobiological andin silicoscreening of novel iron(iii) complexes for DNA-targeted antitumor drug component
Authors: Dolanbay Serap Nigdelioglu , Yilmaz Zehra Kübra , Kaya Büşra , Aslim Belma , Ülküseven Bahri
Published: June 2023

Thiosemicarbazone-based iron(iii) complexes and their DNA binding and cleavage, topoisomerase-IIα and XO inhibitor, antitumor and antioxidant activities.
Di-ruthenium complexes of 1,4-diazabutadiene ligands: synthesis, characterization and utilization as catalyst precursors for the oxidative coupling of amines to imines in air
Authors: Saha Rumpa , Mukherjee Aparajita , Bhattacharya Samaresh
Published: June 2023

A group of tri-chloro bridged di-ruthenium(ii) complexes, bearing chelated 1,4-diazabutadienes, served as efficient catalyst-precursors for the oxidative and deaminative C–N coupling of primary amines to imines using aerial oxygen as the oxidant.
Efficient and stable catalysts for the synthesis of dimethyl carbonate by carbonylation of methyl nitrite applying the starch-coated activated carbon as a support
Authors: Liu Yang , Chen Jianshan , Guo Rong , Wu Hanying , Ye Runping , Qin Yeyan , Wu Siqi , Yao Yuangen
Published: June 2023

For the synthesis of dimethyl carbonate (DMC) by carbonylation of methyl nitrite (MN), the lack of efficient and stable catalysts is a crucial factor limiting the application of this technology.
Recent advances in oxidative phenol coupling for the total synthesis of natural products
Authors: Carson Matthew C. , Kozlowski Marisa C.
Published: June 2023

This review highlights modern uses of oxidative phenol coupling in the total synthesis of natural products, spanning catalytic, electrochemical, stoichiometric and enzymatic approaches.
Studies on the optical stability of CsPbBr3 with different dimensions (0D, 1D, 2D, 3D) under thermal environments
Authors: Shi Jindou , Wang Minqiang , Da Zheyuan , Zhang Chen , Wang Junnan , Ding Yusong , Xu Youlong , Gaponenko Nikolai V.
Published: June 2023

Preparation of CsPbBr3 with different dimensions (0D, 1D, 2D, 3D) and their optical stability under thermal environment.
Push–pull coumarin-based one-component iodonium photoinitiators for cationic nanocomposite 3D-VAT printing
Authors: Petko Filip , Świeży Andrzej , Jankowska Magdalena , Stalmach Paweł , Ortyl Joanna
Published: June 2023

In this article, we described a new group of cationic photoinitiators.
The α-alkylation of carbonyl sulfoxonium ylides: studies and applications in the synthesis of new sulfur heterocycles
Authors: Jesus Matheus P. de , Echemendía Radell , Burtoloso Antonio C. B.
Published: June 2023

α-Alkylation of carbonyl sulfoxonium ylides.
Spherical Fe7S8@rGO nanoflowers as electrodes with high electrocatalytic performance in dye-sensitized solar cells
Authors: Wang Xiaoyu , Wang Wen , Yao Jixin , Zhang Qingxiao , Gao Xin , Lin Changcheng , Yang Qun , Zuo Xueqin , Jin Shaowei , Li Guang
Published: June 2023

The power conversion efficiency (PCE) of Fe7S8@rGO-20 wt% as CEs for DSSCs can reach 8.40%, significantly higher than Pt (7.69%).
Influence of ZIF-9 and ZIF-12 structure on the formation of a series of new Co/N-doped porous carbon composites as anode electrodes for high-performance lithium-ion batteries
Authors: Duong Anh T. A. , Nguyen Hoang V. , Tran Man V. , Ngo Quynh N. , Luu Loc C. , Doan Tan L. H. , Nguyen Hung N. , Nguyen My V.
Published: June 2023

A series of new Co/N-doped porous carbon composites containing Co nanoparticles encapsulated in nitrogen-doped carbon matrices were prepared by annealing Co-based zeolite imidazolate framework materials as the efficient precursors at different temperatures.
Adsorption of Favipiravir on pristine graphene nanosheets as a drug delivery system: a DFT study
Authors: Ibrahim Mahmoud A. A. , Hamad Manar H. A. , Mahmoud Amna H. M. , Mekhemer Gamal A. H. , Sidhom Peter A. , Sayed Shaban R. M. , Moussa Nayra A. M. , Rabee Abdallah I. M. , Dabbish Eslam , Shoeib Tamer
Published: June 2023

The efficacy of the graphene nanosheet to adsorb Favipiravir drug candidate was investigated at various adsorption sites using DFT methods.
Correction: Theoretical predictions and experimental verifications of SERS detection in colorants
Authors: Cao Mingyan , Chen Jiamin , Sun Xiaohong , Xie Feng , Li Boyan
Published: June 2023

Correction for ‘Theoretical predictions and experimental verifications of SERS detection in colorants’ by Mingyan Cao et al., RSC Adv., 2023, 13, 15086–15098, https://doi.org/10.1039/D3RA01584J.
pH-tunable membrane-active polymers, NCMNP2a-x, and their potential membrane protein applications
Authors: Trinh Thi Kim Hoang , Cabezas Andres Jorge , Joshi Soumil , Catalano Claudio , Siddique Abu Bakkar , Qiu Weihua , Deshmukh Sanket , des Georges Amedee , Guo Youzhong
Published: June 2023

Fabrication of membrane proteins in the form of NCMN particles using NCMNP2a-x.
A TADF-based purely organic heterogeneous photocatalyst with hydrophobic domains for efficient oxidation of sulfide into sulfoxide in water
Authors: Hong Gaobo , Wu Yingnan , An Jing , Chen Wenlong , Song Fengling , Peng Xiaojun
Published: June 2023

Two TADF-based purely organic heterogeneous photocatalysts were prepared for oxidizing sulfides into sulfoxides in water. Higher catalytic activity was achieved by forming hydrophobic domains inside the photocatalyst.
The effect of a pine oil/diesel blend on the particulate emission characteristics of a diesel engine under a pre-injection strategy with EGR
Authors: Chen Hui , Guo Xiaoyu , Huang Haozhong , Wang Bingxin
Published: June 2023

Pine oil is a clean alternative fuel with a high oxygen content that can effectively improve engine combustion and emissions.
The relationship between structure and rheology in a three-dimensional sheared lamellar mesophase
Authors: Pal A. , Jaju S. J. , Kumaran V.
Published: June 2023

The evolution of a lamellar mesophase from an initially disordered state under shear is examined using simulations of a mesoscale model based on a concentration field ψ that distinguishes the hydrophilic and hydrophobic components.
Ferrofluid drop impacts and Rosensweig peak formation in a non-uniform magnetic field
Authors: Cordwell Amelia , Chapple Alex A. , Chung Stephen , Wells Frederick Steven , Willmott Geoff R.
Published: June 2023

Vertical drop impacts of ferrofluids onto glass slides in a non-uniform magnetic field have been studied using high-speed photography. Side-on (left) and top-down (right) images show the dynamic evolution of instabilities.
Small molecule and peptide inhibitors of βTrCP and the βTrCP–NRF2 protein–protein interaction
Authors: Jaffry Uzma , Wells Geoff
Published: June 2023

The E3 ligase beta-transducin repeat-containing protein (βTrCP) is an essential component of the ubiquitin–proteasome system that is responsible for the maintenance of cellular protein levels in human cells. Key target substrates for degradation include inhibitor of nuclear factor kappa B, programmed cell death protein 4 and forkhead box protein O3, alongside the transcription factor nuclear factor erythroid-2-related factor 2 (NRF2) that is responsible for cellular protection against oxidative damage. The tumour suppressive nature of many of its substrates and the overexpression of βTrCP observed in various cancers support a potential therapeutic role for inhibitors in the treatment of cancer. A small molecule substituted pyrazolone, GS143, and the natural product erioflorin have been identified as inhibitors of βTrCP and protect its targets from proteasomal degradation. Modified peptides based on the sequences of native substrates have also been reported with KD values in the nanomolar range. This review describes the current status of inhibitors of this E3 ligase. The scope for further inhibitor design and the development of PROTAC and molecular glue-type structures is explored in the context of βTrCP as an example of WD40 domain-containing proteins that are gaining attention as drug targets.
Decoupling and dimension reduction method for distribution system security region
Authors: Xiao Jun , Fan Yuhao , Jiang Xun
Published: June 2023

The application of the security region methodology in a practical distribution system with large scale normally requires large computer memory and high computation time. To overcome this problem, this article proposes a decoupling and dimension reduction method, which can significantly accelerate the calculation of distribution system security region (DSSR) and is important for the application of the DSSR theory in large‐scale distribution systems. First, the definition of DSSR dimension reflecting the size of solution space and the time complexity is proposed. And the solution algorithm for DSSR dimension is also given. Second, a decoupling and dimension reduction method suitable for the analysis of DSSR is proposed. Following the method, an incidence matrix can be obtained from the DSSR expressions, which can be further divided into multiple block matrices. According to the feeder combinations of the block matrices, the distribution system can be decoupled into multiple sub‐networks for more efficient analysis. Finally, a 10kV distribution network is used in case study to validate the proposed method. The results for a time‐consuming calculation, that is, TSC curve calculation, show that the proposed method can reduce the computation time significantly, making the time‐consuming calculation suitable for the analysis of large‐scale cases.
A unilateral 3D indoor positioning system employing optical camera communications
Authors: Younus Othman Isam , Chaudhary Neha , Ghassemlooy Zabih , Alves Luis Nero , Zvanovec Stanislav , Pattas Dimitrios , Papanikolaou Vasilis K.
Published: June 2023

This article investigates the use of a visible light positioning system in an indoor environment to provide a three dimensional (3D) high‐accuracy solution. The proposed system leveraged the use of a single light‐emitting diode and an image sensor at the transmitter and the receiver (Rx) respectively. The proposed system can retrieve the 3D coordinate of the Rx using a combination of the angle of arrival and received signal strength (RSS). To mitigate the error induced by the lens at the Rx, a novel method is proposed and experimentally tested. The authors show that, the proposed method outperforms previously reported RSS under all circumstances and it is immune to varying exposure times within the standard range of 250 µs to 4 ms. The authors experimentally demonstrate that the proposed algorithm can achieve a 3D root mean squared error of 7.56 cm.
Optimal control for the Paneitz obstacle problem
Authors: Ndiaye Cheikh Birahim
Published: June 2023

In this paper, we study a natural optimal control problem associated to the Paneitz obstacle problem on closed 4-dimensional Riemannian manifolds. We show the existence of an optimal control which is an optimal state and induces also a conformal metric with prescribed Q-curvature. We show also C∞-regularity of optimal controls and some compactness results for the optimal controls. In the case of the 4-dimensional standard sphere, we characterize all optimal controls.
On the systematics of Phlebotomus betisi and two new related species from Laos with proposal of the new subgenus Lewisius
Authors: Vongphayloth Khamsing , Randrianambinintsoa Fano José , Lakeomany Khaithong , Phommavanh Nothasine , Mekarnia Nalia , Khadri Mohd Shahar , Kaltenbach Matthieu L. , Huguenin Antoine , Martinet Jean-Philippe , Depaquit Jérôme
Published: June 2023

Phlebotomus betisi was described from Malaysia and classified after its description in the subgenus Larroussius. It was the only species to have a pharyngeal armature composed of dot-like teeth and an annealed spermatheca whose head is carried by a neck in females. Males were characterized by having a style bearing five spines and a simple paramere. The study of sandflies originating from a cave in Laos enabled us to discover and describe two sympatric species close to Ph. betisi Lewis & Wharton, 1963 and new for Science: Ph. breyi Vongphayloth & Depaquit n. sp., and Ph. sinxayarami Vongphayloth & Depaquit n. sp. They were characterized morphologically, morphometrically, geomorphometrically, molecularly, and proteomically (MALDI-TOF). All approaches converged to validate the individualization of these species whose morphological differential characters lay in the two genders by the observation of the interocular suture and by the length of the last two segments of the maxillary palps. In males, the length of the genital filaments discriminates these species. Females are distinguished by the length of the ducts of the spermathecae as well as by the narrow or enlarged shape of the neck bearing their head. Lastly, the particular position of the spines of the gonostyle coupled with molecular phylogeny led us to remove these three species from the subgenus Larroussius Nizulescu, 1931 and to classify them in a new subgenus: Lewisius Depaquit & Vongphayloth n. subg.
An integrated inventory model for non-instantaneous deteriorating item under credit policy and partial backlogging with advertising and price dependent stochastic demand
Authors: Mandal Sangita , Banu Ateka , Mondal Shyamal Kumar
Published: June 2023

In today’s business world, advertising is one of the most important policies to attract more customers. This policy increases the retailer’s sales and makes the retailer’s business position strong. In this paper, we have considered an integrated inventory model for non-instantaneous deteriorating items with a single supplier and single retailer, where a supplier sells his/her products in the market through a retailer who faces a stochastic demand depending on both retail price and advertisement. Here, to increase the retailer’s demand, the supplier wholesales his/her products to the retailer with a credit period. Since the long credit period increases the demand rate but at the same time, it increases the supplier’s opportunity loss. In this paper, we have discussed about the credit policy and find out, how this policy effective on profit of the supplier, the retailer as well as the whole system. After purchasing, the retailer sells his/her products to his customers with a markup. This markup is based on the supplier’s wholesale price and also on advertising costs. Finally, an integrated profit function has been developed and we have illustrated numerical examples to justify the feasibility of the proposed model. The result indicates that not only the credit period but also an appropriate number of advertisements is more important for maintaining the profit of the supplier, the retailer as well as the integrated profit of the system. We have analyzed the effect of markup on the profit function. We have also analyzed how the profit structure of the suppliers and retailers changes along with the changes in the length of the credit period. An effective algorithm has been presented in the solution procedure to find the optimal solutions of the proposed model. Also, the numerical example with uniform distribution has been carried out. Finally, sensitivity analysis of major parameters has been illustrated to provide managerial insights
Single-use duodenoscopes compared with reusable duodenoscopes in patients carrying multidrug-resistant microorganisms: a break-even cost analysis
Authors: Vos Margreet C. , Bruno Marco J. , Kwakman Judith A. , Poley Marten J.
Published: June 2023

Background and study aims Single-use duodenoscopes can prevent transmission of microorganisms through contaminated reusable duodenoscopes. Concerns regarding their economic and environmental impact impede the transition to single-use duodenoscopes. This study investigated the costs associated with two scenarios in which single-use duodenoscopes are used in patients carrying multidrug-resistant microorganisms (MDROs).

Methods Break-even costs for single-use duodenoscopes were calculated for two scenarios in which patients were screened for MDRO carriage before undergoing endoscopic retrograde cholangiopancreatography (ERCP). Only direct costs related to the endoscopy were taken into consideration. In Scenario 1, patients were screened through microbiological culturing with a lag time in receiving the test result. In Scenario 2, screening was performed using GeneXpert analysis providing a rapid read-out. Calculations were performed using data from a Dutch tertiary care center and also with US healthcare data.

Results In the Dutch situation, single-use duodenoscopes needed to be priced at a maximum of € 140 to € 250 to break-even. In the US analyses, break-even costs varied widely, depending on the duodenoscope-associated infection costs used, ERCP volume, and infection risk. The break-even costs in Scenario 1 ranged between $78.21 and $2,747.54 and in Scenario 2, between $248.89 and $2,209.23.

Conclusions This study showed that a crossover scenario in which single-use duodenoscopes are only used in patients carrying MDROs could be an economically viable alternative to a complete transition to single-use duodenoscopes. In the Dutch setting, single-use duodenoscopes need to be priced much lower than in the United States to reach a per-procedure cost that is comparable with a scenario using reusable duodenoscopes exclusively.
Cardiovascular Outcomes of Differentiated Thyroid Cancer Patients on
Long Term TSH Suppression: A Systematic Review and Meta-Analysis
Authors: Yu Jerry , Kaur Rajneesh , Ayeni Femi Emmanuel , Eslick Guy D. , Edirimanne Senarath
Published: June 2023

We performed a systematic review and meta-analysis of the literature regarding
cardiovascular outcomes of differentiated thyroid cancer (DTC) patients who are
on long term thyroid stimulating hormone suppression. Searches were carried out
using Prisma guidelines in Medline, Embase, CENTRAL, CINAHL and Scopus
databases. Eligible papers were those which investigated discrete cardiovascular
clinical outcomes in TSH suppressed patients and meta-analysis of selected
studies was performed using Revman 5.4.1. We found a total of 195 879 DTC
patients with median length to follow up of 8.6 years (range 5–18.8
years). Analysis showed DTC patients to be at higher risk of atrial fibrillation
(HR 1.58, 95% CI 1.40, 1.77), stroke (HR 1.14, 95% CI 1.09,
1.20) and all-cause mortality (HR 2.04, 95% CI 1.02, 4.07). However,
there was no difference in risk of heart failure, ischemic heart disease or
cardiovascular mortality. These findings suggest that degree of TSH suppression
must be titrated to accommodate risk of cancer recurrence and cardiovascular
morbidity.
Angehörigenarbeit - Neu denken
Authors: Hornig Larissa
Published: June 2023

Es gibt einen wissenschaftlich-fachlichen Konsens darüber, dass es sich
bei Substanzgebrauchsstörungen gleichermaßen um
Störungen im Familiensystem handelt. Denn sie ziehen neben den
individuellen Belastungen der Betroffenen selbst, vor allem massive soziale
Auswirkungen im Kontext der kompletten Familiendynamik nach sich.
Dementsprechend stellen auch Angehörige eine wichtige Zielgruppe
für die Suchthilfe dar, für die es gilt, ein
flächendeckendes und bedarfsorientiertes Unterstützungsangebot
zu schaffen. In der Praxis lässt die Angebotspalette an
Unterstützungsmöglichkeiten für diese Zielgruppe jedoch
nach wie vor zu wünschen übrig. Stigmatisierungsängste
sind neben strukturellen Barrieren und Zugangshürden des
Suchthilfesystems u. a. ein Grund dafür, dass Angehörige
die bereits bestehenden Angebote nur selten bis gar nicht nutzen. Inwieweit
professionelle Fachkräfte selbst schon anhand des eigenen
Sprachgebrauchs zu Stigmatisierungen beitragen, wird nachfolgend beleuchtet. Im
folgenden Beitrag soll eine Bestandsaufnahme über die aktuelle Praxis
der Angehörigenarbeit sowie Impulse für
Weiterentwicklungsmöglichkeiten und den notwendigen Handlungs- und
Forschungsbedarf gegeben werden, um ein „Neudenken“ in der
Angehörigenarbeit anzuregen.

Da es sich um einen Diskussionsbeitrag handelt, wurde keine systematische
Literaturrecherche durchgeführt. Hingegen wird der aktuelle Stand aus
Forschung und Praxis mit Blick auf mögliche Verbesserungen und
Handlungsimpulse zur Thematik der Angehörigenarbeit in der Suchthilfe
beleuchtet.
Correlation of Quantitative Diffusion-Weighted MR Parameters and SUVmax from 18-FDG PET-CT in Lung Cancer: A Prospective Observational Study
Authors: Goyal Jitin , Jajodia Ankush , Koyyala Venkata Pradeep Babu , Bansal Abhishek , Batra Ullas , Pasricha Sunil , Puri Sunil , Chaturvedi Arvind K.
Published: June 2023

Background Diffusion-weighted magnetic resonance imaging (DW-MRI) sequences report the cellularity in tissues and 18-fluorodeoxyglucose (18-FDG) positron emission tomography–computed tomography (PET-CT) provides information on glucose metabolism in cells, associated to tumor aggressiveness. The aim of this study was to assess the correlation between quantitative diffusion-weighted magnetic resonance parameters and maximum standardized uptake value (SUVmax) using 18-FDG PET-CT in lung cancer and metastatic lymph nodes.

Methods Histologically proven 29 patients of lung cancers were subjected to 18-FDG PET-CT and DW-MRI (parameters: repetition time/time to echo [TR/TE] = 4,000/76 ms; b-values = 0, 400, and 800 s/mm2) between June 2018 and June 2019. SUVmax was calculated on the PET-CT images representing region of interest (ROI) in the tumor. The apparent diffusion coefficient (ADC) values were quantified by placing an ROI over the tumor at a high b-value of 800 mm2/s. Statistical analyses for correlation between SUVmax and ADC were done using Pearson's correlation coefficient (r).

Results Significant negative correlation was observed between analyses of ADC and SUVmax for primary lesions of all nonsmall-cell lung cancers (NSCLCs; p < 0.05) and its histological subtype adenocarcinoma (p < 0.05) but not squamous cell carcinomas (p = 0.35). Significant negative correlation was also observed for metastatic lymph nodes of adenocarcinoma (p < 0.05) but not for metastatic lymph nodes of all NSCLCs (p = 0.05) or squamous cell carcinomas (p = 0.55).

Conclusions Diffusion-weighted imaging (DWI) with ADC may represent a new prognostic marker due to a significant negative correlation between ADC determined by DWI and SUVmax by PET-CT in NSCLCs. Furthermore, DWI-MRI of the thorax can be added to routine 18-FDG PET-CT for staging and response assessment in lung cancer in prospects.
Exploring Preschoolers' Emotions in Pediatric Dentistry
Authors: Wadji Dyani R.N. , Despriliani Ririn , Setiawan Arlette Suzy
Published: June 2023

Objective Emotion is a feeling that someone can feel. Emotions are generally shown through behavior or facial expressions. Emotions are essential for dental treatment because there is a relation between the emotions felt by children and the success of the dental treatment that the dentist will give. This study aimed to describe variables of emotions about dental treatment.

Materials and Methods Descriptive analysis using a convenience nonrandom sampling technique was conducted on 58 preschool children aged 3 to 6 years old who came for dental treatment at the Bandung Dental Center in Bandung, Indonesia. The instrument used to ask children how they feel about dental care is a 7-item questionnaire derived from the children's fear survey scale-dental subscale. Meanwhile, the media used by children to respond was a card with facial expressions from the Facial Expression Emotion Scale.

Results The results showed that only participants aged 4 responded with one type of emotion (happy), while the other age groups gave various emotional responses. Fear emotion began to appear in the age group of 5 and 6 years and only in girls, while emotions of anger also appeared in girls and only at the age of 5.

Conclusion In this study, the emotions that children choose about dental care at the Bandung Dental Center clinic are happy emotions. The emotions of fear and sadness were chosen more by girl participants, while none of the boy participants chose the emotion of fear. This sad and fearful response is associated with invasive dental treatment. Anger was chosen as a child's response dominantly because of the parents' invitation to the dentist.
Association of Herpesvirus and Periodontitis: A Clinical and Laboratorial Case–Control Study
Authors: Picolo Marta , de Araújo Nobre Miguel A. , Salvado Francisco , Barroso Helena
Published: June 2023

Objectives A significant influence of the Herpesviridae family in the progression of periodontal disease has been suggested. The aim of this study was to investigate the potential association of four Herpesviruses (HSV-1, HSV-2, cytomegalovirus [CMV], and Epstein-Barr virus [EBV]) with periodontal disease using a qualitative test for evaluating the presence or absence of viral DNA in crevicular fluid samples of both healthy periodontal patients and periodontal compromised patients.

Materials and Methods A case–control study was conducted in 100 participants at a university clinic. A qualitative test was used for evaluating the presence/absence of viral DNA in crevicular fluid samples of both healthy periodontal patients and periodontal compromised patients, and considering the periodontitis staging (stage II, stage III, and stage IV) and grading (grade A, grade B, and grade C).

Statistical Analysis The distribution of the same exposure variables to the periodontitis staging and grading was compared using Chi-square, Fisher's exact, and Gamma tests depending on the variable characteristics. The significance level was set at 5%. The association of the variables: age, sex, diabetes, smoking, alcohol, and oral hygiene was also considered.

Results The prevalence of Herpesviridae family virus DNA was 6% for the periodontal healthy group and 60% for the periodontitis group (roughly 60% on periodontitis stages II, III, and IV, p <0.001; and twofold increase in moderate and rapid progression grades compared with the slow progression grade, p <0.001). HSV1 DNA was prevalent in all periodontitis stages and grades. HSV 2, EBV, and CMV DNA had increasing prevalence rates in more severe stages (stages III and IV, p <0.001); while considering periodontitis grade, HSV2 (p = 0.001), CMV (p = 0.019) and EBV (p <0.001) DNA were prevalent only in grades B and C, with EBV DNA registering a marked prevalence in grade C.

Conclusion A significant different distribution of Herpesviridae virus DNA per each stage of disease was registered.
Pretreatment Systemic Inflammatory Markers, Neutrophil Lymphocyte Ratio, and Platelet Lymphocyte Ratio as a Prognostic Factor in Cervical Cancer: A Retrospective Study
Authors: Sarkar Sabyasachi , Mirza Behjet , Das Sumana Maiti , Singh Dharmendra , Das Siddhartha
Published: June 2023

Inflammation has been recognized as a promoter of the neoplastic process initiation and progression. Neutrophilia, lymphocytopenia, and thrombocytosis are hallmarks of inflammatory reaction. The aim of this study is to find the correlation and prognostic value of pretreatment neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR), with the recurrence in carcinoma cervix.

Data of 208 biopsy-proven cases of squamous cell carcinoma cervix treated with definitive chemoradiotherapy were retrospectively analyzed. Neutrophil, lymphocyte, and platelet count at diagnosis were recorded and NLR and PLR were calculated. The cutoff value of NLR and PLR were calculated using receiver operator characteristics curve analysis. Correlation between locoregional recurrence (LRR) and NLR and PLR is evaluated. Median age of diagnosis is at 50 years. International Federation of Gynecology Obstetrics stage IIB was the most prevalent stage in this study. The NLR and PLR were statistically significantly affecting the LRR. The cutoff value of NLR was 2.45 with a sensitivity of 82.6% and specificity of 77.7%. The cutoff value for PLR was 140.6 with a sensitivity of 85.5% and specificity of 80.6%. On univariate regression analysis stage (p = 0.045), tumor grade (p = 0.001), addiction (p = 0.024), NLR (p < 0.001), and PLR (p < 0.001) were associated with LRR. Multivariate regression analysis showed that NLR (p = 0.005) risk group and PLR (p < 0.001) risk group are independent risk factors associated with LRR.

Conclusion High value of NLR and PLR correlate with poor prognosis in squamous cell carcinoma cervix. Hence, these biomarkers may be used as surrogates for tumor prognosis.
Transforming the educational experiences of marginalized students in Ghana through dialogic literary gatherings
Authors: Allotey Eugenia , García-Carrión Rocío , Villardón-Gallego Lourdes , Soler-Gallart Marta
Published: June 2023

Discrimination and educational inequalities continually affect lifelong learning opportunities among marginalized groups in the 21st century. In Ghana and many parts of Sub-Saharan Africa, children from rural and urban poor communities, ethnic and linguistic minorities and those in displaced situations have experienced discrimination and marginalization in education for decades. However, few studies propose ways marginalized students in Ghana can transform their experiences in school. This paper explores how participating in a dialogue-based intervention named Dialogic Literary Gatherings (DLGs) transformed the educational experiences of marginalized students. An ethnographic-case study was conducted with 8th-grade students in a compulsory school in Southeastern Ghana. Focusing on the personal accounts of seven students, our findings show that the DLGs created affordances for marginalized students to engage in egalitarian dialogue, share their grievances while transforming relationships and attitudes with their peers and boost participants’ self-confidence, eventually transforming their educational experiences. This is relevant for practitioners and stakeholders seeking innovative strategies that potentially transform discriminated and marginalized students’ experiences and potentially keep them in school.
A mid-infrared laser microscope for the time-resolved study of light-induced protein conformational changes
Authors: Temperini Maria Eleonora , Polito Raffaella , Intze Antonia , Gillibert Raymond , Berkmann Fritz , Baldassarre Leonetta , Giliberti Valeria , Ortolani Michele
Published: June 2023

We have developed a confocal laser microscope operating in the mid-infrared range for the study of light-sensitive proteins, such as rhodopsins. The microscope features a co-aligned infrared and visible illumination path for the selective excitation and probing of proteins located in the IR focus only. An external-cavity tunable quantum cascade laser provides a wavelength tuning range (5.80–6.35 µm or 1570–1724 cm−1) suitable for studying protein conformational changes as a function of time delay after visible light excitation with a pulsed LED. Using cryogen-free detectors, the relative changes in the infrared absorption of rhodopsin thin films around 10−4 have been observed with a time resolution down to 30 ms. The measured full-width at half maximum of the Airy disk at λ = 6.08 µm in transmission mode with a confocal arrangement of apertures is 6.6 µm or 1.1λ. Dark-adapted sample replacement at the beginning of each photocycle is then enabled by exchanging the illuminated thin-film location with the microscope mapping stage synchronized to data acquisition and LED excitation and by averaging hundreds of time traces acquired in different nearby locations within a homogeneous film area. We demonstrate that this instrument provides crucial advantages for time-resolved IR studies of rhodopsin thin films with a slow photocycle. Time-resolved studies of inhomogeneous samples may also be possible with the presented instrument.
Investigation of spin–orbit torque performance with W/Cu-multilayers as spin current source
Authors: Coester B. , Lim G. J. , Tan F. N. , Poh H. Y. , Lew W. S.
Published: June 2023

We study the W/Cu multilayers as a spin current source and the coherent spin–orbit torques in a Fe layer using the spin-torque ferromagnetic resonance (STFMR) technique. With increasing numbers of layers, the line shape of the STFMR signals changes from predominantly antisymmetric to predominantly symmetric. When using [W(0.5)/Cu(0.5)]5 as a spin current source, the symmetric amplitude increases by a factor of 5 compared to a single W layer. Simultaneously, the effective damping parameter also increases slightly due to enhanced spin pumping. Along with an increasing trend in the damping-like torque efficiency, this suggests that the extrinsic spin Hall effect is enhanced. Concurrently, the antisymmetric amplitude decreases significantly by a factor of 27, which indicates an increase in the field-like torque when multilayers are used as a spin current source.
Electron bunch dynamics and emission in particle-in-cell simulations of relativistic laser–solid interactions: On density artifacts, collisions, and numerical dispersion
Authors: Fasano Nicholas M. , Edwards Matthew R. , Mikhailova Julia M.
Published: June 2023

Sub-optical-cycle dynamics of dense electron bunches in relativistic-intensity laser–solid interactions lead to the emission of high-order harmonics and attosecond light pulses. The capacity of particle-in-cell simulations to accurately model these dynamics is essential for the prediction of emission properties because the attosecond pulse intensity depends on the electron density distribution at the time of emission and on the temporal distribution of individual electron Lorentz-factors in an emitting electron bunch. Here, we show that in one-dimensional collisionless simulations, the peak density of the emitting electron bunch increases with the increase in the spatial resolution of the simulation grid. When collisions are added to the model, the peak electron density becomes independent of the spatial resolution. Collisions are shown to increase the spread of the peaks of Lorentz-factors of emitting electrons in time, especially in the regimes far from optimum generation conditions, thus leading to lower intensities of attosecond pulses as compared to those obtained in collisionless simulations.
On classical Z2×Z2-graded Lie algebras
Authors: Stoilova N. I. , Van der Jeugt J.
Published: June 2023

We construct classes of Z2×Z2-graded Lie algebras corresponding to the classical Lie algebras in terms of their defining matrices. For the Z2×Z2-graded Lie algebra of type A, the construction coincides with the previously known class. For the Z2×Z2-graded Lie algebra of types B, C, and D, our construction is new and gives rise to interesting defining matrices closely related to the classical ones but undoubtedly different. We also give some examples and possible applications of parastatistics.
Thermal-strain driving sharp metal-to-insulate transition and island-grain growth of solution-derived NdNiO3 epitaxial thin films
Authors: Tang Xianwu , Jia Yaoqi , Lu Wei , Hu Ling , Zhu Xuebin , Wang Yongjin , Sun Yuping
Published: June 2023

An ultra-sharp metal-to-insulate transition (MIT) of 1.24 K−1 in the epitaxial perovskite NdNiO3 thin films was derived by the chemical solution deposition on the LaAlO3 substrates. The thermal strains from shrink, grain growth, and thermal expansion coefficient misfit play a key role in the film microstructure and electrical properties. The originally theoretical in-plane compressive epitaxial strain changes into a tensile one caused by the thermal driving force. It relaxes with improved grain growth via decreased oxygen vacancies with increasing annealing temperature, while the concurrently enhanced tensile strain from the thermal expansion coefficient misfit between the films and the substrate leads to the destabilization of Ni3+ and the higher MIT temperature. Nevertheless, too much higher tensile strain gives rise to island-grain growth in the films, leading to the weak and even disappeared MIT.
PathSum: A C++ and Fortran suite of fully quantum mechanical real-time path integral methods for (multi-)system + bath dynamics
Authors: Kundu Sohang , Makri Nancy
Published: June 2023

This paper reports the release of PathSum, a new software suite of state-of-the-art path integral methods for studying the dynamics of single or extended systems coupled to harmonic environments. The package includes two modules, suitable for system–bath problems and extended systems comprising many coupled system–bath units, and is offered in C++ and Fortran implementations. The system–bath module offers the recently developed small matrix path integral (SMatPI) and the well-established iterative quasi-adiabatic propagator path integral (i-QuAPI) method for iteration of the reduced density matrix of the system. In the SMatPI module, the dynamics within the entanglement interval can be computed using QuAPI, the blip sum, time evolving matrix product operators, or the quantum–classical path integral method. These methods have distinct convergence characteristics and their combination allows a user to access a variety of regimes. The extended system module provides the user with two algorithms of the modular path integral method, applicable to quantum spin chains or excitonic molecular aggregates. An overview of the methods and code structure is provided, along with guidance on method selection and representative examples.