bluuebunny/crossref_metadata_2025 huggingface dataset:
Ceria-based oxide catalysts supported on metal–organic frameworks: selective oxidation of toluene to CO2 and the doped metal-activity relationship
Authors: Hou Xueyan , Bian Ye , Jin Lijian , Yang Linjun
Published: July 2023

Controlling toluene emissions via catalytic oxidation necessitates catalysts with high redox performance.
Protein blends and extrusion processing to improve the nutritional quality of plant proteins
Authors: Duque-Estrada Patrícia , Hardiman Kate , Bøgebjerg Dam Astrid , Dodge Nadia , Aaslyng Margit Dall , Petersen Iben Lykke
Published: July 2023

Utilizing protein blends improved the amino acid profile of the ingredients, and extrusion processing effectively reduced trypsin inhibitors in all extrudates but only enhanced the in vitro protein digestibility of the pulse-rich extrudates.
A self-tuning PID controller based on analog–digital hybrid computing with a double-gate SnS2 memtransistor
Authors: Rehman Shania , Khan Muhammad Farooq , Kim Hee-Dong , Kim Sungho
Published: July 2023

An analog–digital hybrid computing platform for a self-tuning/energy-efficient PID controller with a double-gate SnS2 memtransistor.
Comprehensive structural, infrared spectroscopic and kinetic investigations of the roles of the active-site arginine in bidirectional hydrogen activation by the [NiFe]-hydrogenase ‘Hyd-2’ from Escherichia coli
Authors: Evans Rhiannon M. , Beaton Stephen E. , Rodriguez Macia Patricia , Pang Yunjie , Wong Kin Long , Kertess Leonie , Myers William K. , Bjornsson Ragnar , Ash Philip A. , Vincent Kylie A. , Carr Stephen B. , Armstrong Fraser A.
Published: July 2023

Changing the conserved active-site arginine of [NiFe]-hydrogenases into a lysine greatly lowers the rates of catalytic H2 activation in each direction and results in the extremely tight binding of a diatomic ligand.
Superior CoO/SiC nanowire field emitters with substantially increased stable emission sites: ultralow turn-on field, high current density and high stability
Authors: Song Kai , Li Xiaoxiao , Li Weijun , Wang Lin , Gong Chuangchuang , Hu Feng , Gao Fengmei , He Fang , Chen Shanliang
Published: July 2023

We explored high-performance field emitters with numerous CoO nanoparticles surrounding SiC nanowires for increasing emission sites, which exhibited ultralow turn-on field (0.40 V μm−1), high current density (18.6 mA cm−2) and high emission stability.
Amorphous Fe–Co oxide as an active and durable bifunctional catalyst for the urea-assisted H2 evolution reaction in seawater
Authors: Wei Tianran , Meng Ge , Zhou Yinhai , Wang Zhifeng , Liu Qian , Luo Jun , Liu Xijun
Published: July 2023

Benefitting from the favorable mass diffusion kinetics and increased exposed active sites, the amorphous Fe–Co oxide shows satisfactory UOR and HER performance in alkaline seawater.
A computational study of CO2 hydrogenation on single atoms of Pt, Pd, Ni and Rh on In2O3(111)
Authors: Cannizzaro Francesco , Kurstjens Sjoerd , van den Berg Tom , Hensen Emiel J. M. , Filot Ivo A. W.
Published: July 2023

Single atoms of Ni, Pd, Pt and Rh drive selectivity to CO during CO2 hydrogenation on In2O3 catalysts.
Chemistry of iron and copper co-doped zinc oxide: reduction and degradation of pollutants
Authors: Belay Hiwot , Abebe Buzuayehu , Tsegaye Dereje , Ravikumar C. R. , Reddy S. Giridhar , Ananda Murthy H. C.
Published: July 2023

Porous, ordered framework catalysts, synthesised in a short time and with a low-energy combustion approach, can catalytically reduce pollutants to nontoxic by-products. The approach has a visible future outlook for industrial wastewater treatment.
MOF/TiO2 erythrocyte-like heterostructures decorated by noble metals for use in hydrogen photogeneration and pollutant photodegradation
Authors: Baluk Mateusz A. , Mazierski Paweł , Pieczyńska Aleksandra , Nikiforow Kostiantyn , Trykowski Grzegorz , Klimczuk Tomasz , Zaleska-Medynska Adriana
Published: July 2023

Various heterostructures formed by hydrolysis of MOFs for photogeneration of hydrogen and photodegradation of pollutants.
Insights into Pt–CN species on an alumina-supported platinum catalyst as active intermediates or inhibitors for low-temperature hydrogen cyanide synthesis from methane and nitric oxide
Authors: Takagaki Atsushi , Bando Kyoko K. , Yamasaki Tatsuya , Murakami Junichi , Suganuma Nobuya , Ghampson I. Tyrone , Kodaira Tetsuya , Ishihara Tatsumi , Shishido Tetsuya
Published: July 2023

In situ measurements revealed that the Pt–CN species function not only as intermediates but also as inhibitors for low-temperature HCN synthesis.
c-Axis-oriented sheet-like Cu/AEI zeolite contributes to continuous direct oxidation of methane to methanol
Authors: Xiao Peipei , Wang Yong , Nakamura Kengo , Lu Yao , Kondo Junko N. , Gies Hermann , Yokoi Toshiyuki
Published: July 2023

The cubic and sheet-like AEI zeolites were prepared in the absence and presence of CTAB. Sheet-like Cu/AEI zeolite exhibited more stable and higher methanol formation rate than the cubic-shaped one due to the shortened straight channel length.
Photocatalytic conversion of carbon dioxide, methane, and air for green fuels synthesis
Authors: Chebbi Amira , Sinopoli Alessandro , Abotaleb Ahmed , Bicer Yusuf
Published: July 2023

Green fuels are derived from renewable resources that can replace or reduce the use of fossil fuels, and they can help reduce carbon emissions and dependence on finite resources including oil and natural gas.
Hierarchical structured Cu@carbon/carbon cloth film with high levels of light absorption for efficient solar thermal desalination
Authors: Xu Chao , Li Haibo
Published: July 2023

A novel hierarchical structured Cu@carbon/carbon cloth film is developed for highly-efficient interfacial solar steam generation.
Optimization of spray-drying conditions using response surface methodology, physico-chemical characterization and shelf-life estimation of pineapple powder
Authors: Sharma Ramesh , Nath Pinku Chandra , Seth Dibyakanta
Published: July 2023

Response surface methodology (RSM) was used in this study to optimize spray drying process conditions for pineapple juice powder (PJP) production.
Cocoa flavanols improve peakVO2 and exercise capacity in a randomized double blinded clinical trial in healthy elderly people
Authors: Gröne Michael , Duse Dragos Andrei , Kramser Nicolas , Ophoff Niklas , Schweers Hendrik , Voß Fabian , Quast Christine , Sansone Roberto , Heiss Christian , Jung Christian , Kelm Malte , Erkens Ralf
Published: July 2023

Cocoa flavanols improve peakVO2 and exercise capacity in healthy elderly people.
Designing active and stable Ir-based catalysts for the acidic oxygen evolution reaction
Authors: Lin Zijie , Wang Tanyuan , Li Qing
Published: July 2023

Various strategies for optimization of Ir-based OER catalysts are summarized, including elemental doping, surface engineering, atomic utilization and support engineering.
Flattening conduction and valence bands for interlayer excitons in a moiré MoS2/WSe2 heterobilayer
Authors: Conti Sara , Chaves Andrey , Pandey Tribhuwan , Covaci Lucian , Peeters François M. , Neilson David , Milošević Milorad V.
Published: July 2023

Gating and pressure induce record flat bands of interlayer excitons in MoS2/WSe2, while the moiré potential is too weak to cause much flattening. Such feasible routes to truly flat bands enable strongly correlated excitonic phenomena on demand.
Cu-based catalysts with the co-existence of single atoms and nanoparticles for basic electrocatalytic oxygen reduction reaction
Authors: Liu Huimin , Jin Qiong , Meng Lingzhe , Gu Hongfei , Liang Xiao , Fan Yu , Li Zhi , Zhang Fang , Rong Hongpan , Zhang Jiatao
Published: July 2023

A Bi-MOF-derived Cu-based catalyst with the co-existence of Cu single atoms and Cu nanoparticles shows higher ORR performance than commercial Pt/C.
Synthesis and post-synthesis strategies for polychromatic carbon dots toward unique and tunable multicolor photoluminescence and associated emission mechanism
Authors: Moniruzzaman Md , Kim Jongsung
Published: July 2023

State-of-the-art advances on the strategies for the preparation of multicolor CDs with tunable emission and their tunable emission mechanism.
Controlled photodegradation of phenyl vinyl ketone polymers by reinforcement with softer networks
Authors: De Alwis Watuthanthrige Nethmi , Weerasinghe M. A. Sachini N. , Oestreicher Zachery , Konkolewicz Dominik
Published: July 2023

Polymer networks based on phenyl vinyl ketone were synthesized. The introduction of a second network enhanced the control over the material's photodegradation, as well as modulating the mechanical properties.
Photopolymerization using bio-sourced photoinitiators
Authors: Chen Hong , Zhu Di , Kavalli Tuba , Xiao Pu , Schmitt Michael , Lalevée Jacques
Published: July 2023

This review mainly summarizes the current progress in photopolymerization for bio-based photoinitiators/photoinitiating systems, along with presents conditions for monomers derived from natural products.
Tunable functional groups on MXene regulating the catalytic property of anchored cobalt phthalocyanine for electrochemical CO2 reduction
Authors: Zhou Zhixiang , Yu Fengshou , You Yang , Zhan Jiayu , Zhang Lu-Hua
Published: July 2023

CoPc was anchored on an MXene support bearing terminal –F or –OH. The –OH can axially coordinate with Co forming Co–O coordination, through which the electronic states of the Co center were tuned realizing an efficient ECRR performance.
Selective N-α-C–H alkylation of cyclic tertiary amides via visible-light-mediated 1,5-hydrogen atom transfer
Authors: Wang Junlei , Xie Qinglin , Gao Guocheng , Li Hongqing , Lu Wenyun , Cai Xiaodong , Chen Xuemei , Huang Binbin
Published: July 2023

Herein, we report an effective C–H bond activation-alkylation strategy for 2-iodobenzoyl protected cyclic amines at the N-α-position through a visible-light mediated 1,5-hydrogen atom transfer (HAT) process.
Direct laser writing of hydrophobic and hydrophilic valves in the same material applied to centrifugal microfluidics
Authors: Vargas Matheus J. T. , Nieuwoudt Michel K. , Arul Rakesh , Williams David E. , Simpson M. Cather
Published: July 2023

The fabrication of hydrophobic and hydrophilic surfaces, achieved using femtosecond and nanosecond laser treatments, and their subsequent integration into centrifugal microfluidics, resulted in a noticeable improvement in operation of microfluidic valves.
Different routes for the construction of biologically active diversely functionalized bicyclo[3.3.1]nonanes: an exploration of new perspectives for anticancer chemotherapeutics
Authors: Roy Nilmadhab , Das Rishav , Paira Rupankar , Paira Priyankar
Published: July 2023

Cancer is the second most high-morbidity disease throughout the world.
Leveraging machine learning to consolidate the diversity in experimental results of perovskite solar cells
Authors: Hussain Wahid , Sawar Samina , Sultan Muhammad
Published: July 2023

Application of a machine learning approach to device design. Starting from database analysis followed by a dataset creation based on those insights. Data preprocessing is done to extract features for ML prediction and design new PSCs.
Improving electrochemical performance of hybrid electrode materials by a composite of nanocellulose, reduced oxide graphene and polyaniline
Authors: Le Hang T. T. , Liem Nguyen Thanh , Giang Nguyen Chau , Hoang Phan Huy , Minh Phuong Nguyen Thi
Published: July 2023

Ternary biocomposites of nanocellulose, reduce graphene oxide and polyaniline.
Tuning the conductance of carbon rings with impurities and electric fields
Authors: Rojas Carlos , León A. , Pacheco M. , Chico Leonor , Orellana P. A.
Published: July 2023

A study on the conductance and energy spectrum of a molecular system with quantum rings modelled as cyclocarbons in their cumulenic and polyynic configurations. Employing a tight-binding model, we explore its validity to describe the transport properties of these materials.
Fe3O4 supported [Cu(ii)(met)(pro-H)2] complex as a novel nanomagnetic catalytic system for room temperature C–O coupling reactions
Authors: Ali Ahmed Talal , Guda Muthik A. , Oraibi Amjad I. , Salih Issam K. , Shather A. H. , Abd Ali Abbas Talib , Azzawi Ahmed L. , Almashhadani Haider Abdulkareem
Published: July 2023

A novel Cu complex was prepared and showed remarkable catalytic activity for room temperature C–O coupling reactions. The experimental results strongly verified the heterogenous nature and reusability of this complex.
The Mizoroki–Heck reaction between in situ generated alkenes and aryl halides: cross-coupling route to substituted olefins
Authors: Koranne Anushka , Turakhia Shrishty , Jha Vikesh Kumar , Gupta Sangeeta , Ravi Rangnath , Mishra Abhijeet , Aggarwal Anil K. , Jha Chandan Kumar , Dheer Neelu , Jha Abadh Kishor
Published: July 2023

This review covers palladium-catalyzed typical Mizoroki–Heck cross-coupling reactions of aryl halides with in situ generated alkenes, to form substituted olefins unlike direct cross-coupling of alkenes with aryl halides in Heck olefination.
Impact fracture mechanism and heat deflection temperature of PLA/PEICT blends reinforced by glass fiber
Authors: Lee Joo Hyung , Park Chang Kyu , Kim Seong Hun
Published: July 2023

The PLA/PEICT/GF composite newly presented in this study demonstrated high impact strength and thermal properties.
Fe–Al binary composite filled dialysis membrane tubes (DMT-HFAO): a modified method for assessment of phosphate desorption from aqueous and soil solutions
Authors: Kassim Ahmed , Taddesse Abi M. , Nigussie Dechassa , Diaz Isabel , Habib Nejat Redwan
Published: July 2023

Phosphorus (P) limits plant growth particularly in strongly acidic soils due to P fixation.
Engineering of a GSH activatable photosensitizer for enhanced photodynamic therapy through disrupting redox homeostasis
Authors: Fu Datian , Wang Yan , Lin Kaiwen , Huang Liangjiu , Xu Jin , Wu Haimei
Published: July 2023

The novel NIR photosensitizer, CyI-S-diCF3, with excellent GSH consumption ability and 1O2 production efficiency, was successfully used for GSH depletion-assisted enhanced photodynamic therapy through disrupting redox homeostasis.
A chemical probe unravels the reactive proteome of health-associated catechols
Authors: Weigert Muñoz Angela , Meighen-Berger Kevin M. , Hacker Stephan M. , Feige Matthias J. , Sieber Stephan A.
Published: July 2023

Using a competitive chemoproteomics approach, we profile the proteome modified by catechols from foods, drinks, and drugs.
Role of mutations in a chemoenzymatic enantiodivergent C(sp3)–H insertion: exploring the mechanism and origin of stereoselectivity
Authors: Chatterjee Ritwika , Jindal Garima
Published: July 2023

A molecular level understanding into the role of mutations in a cytochrome P450 catalyzed enantiodivergent carbene insertion reaction is provided through the use of computational tools.
Practical synthesis of allylic amines via nickel-catalysed multicomponent coupling of alkenes, aldehydes, and amides
Authors: Xiao Wei-Guo , Xuan Bin , Xiao Li-Jun , Zhou Qi-Lin
Published: July 2023

A practical and efficient protocol is reported for synthesizing valuable allylic amines via a catalytic multicomponent coupling reaction of alkenes, aldehydes, and amides using nickel and Lewis acid catalysts.
Thermosensitive hydrogel-based, high performance flexible sensors for multi-functional e-skins
Authors: Lu Dongdong , Zhu Mingning , Li Xiaoyuan , Zhu Zilong , Lin Xin , Guo Chuan Fei , Xiang Xiaodong
Published: July 2023

A thermo-sensitive and conductive hydrogel with a VPTT value of 38 °C is developed. The gel is stretchable, self-adhesive, self-healable, puncture-resistant and can respond to multimodal stimuli including tensile strain, compressive stress and temperature with high sensitivity.
Multifunctional nanofibrous mats: toward antibacterial and anti-inflammatory applications, and visual bacterial diagnosis
Authors: Gao Yujie , Pei Wenxiang , Yang Yang , Li Mengmeng , Sun Hengqiu , Chen Mingchao , Ma Xiaoman , Zhang Hui , Qi Dongming , Wu Jindan
Published: July 2023

An integrated nanofibrous mat was fabricated by the electrospinning and electrospraying techniques for antibacterial and anti-inflammatory purposes, and monitoring bacterial infections and guiding dressing changes promptly.
Introducing an alternative oxidant for Spiro-OMeTAD with the reduction product to passivate perovskite defects
Authors: Gao Xing , Wu Fei , Zeng Ye , Chen Kaixing , Liu Xiaorui , Zhu Linna
Published: July 2023

A low-cost organic oxidant IBX is used to oxidize spiro-OMeTAD. Moreover, the reduction product of IBX can passivate defects, and inhibit nonradiative recombination. The IBX-treated PSCs achieved a high efficiency of 22.45% with improved stability.
Manipulation of magneto-electroluminescence from exciplex-based spintronic organic light-emitting diodes
Authors: Liu Chenghao , Chen Zhen , Du Huitian , Yu Yuan , Ren Junfeng , Fan Jihui , Han Shenghao , Pang Zhiyong
Published: July 2023

Exciplex-based spintronic organic light-emitting diodes (spin-OLEDs) have been fabricated by inserting ferromagnet nanolayers. By adjusting the spin-polarized cathodes, different magneto-electroluminescence (MEL) responses are realized.
Amplification of polarization ratio is observed in monolayer Dion–Jacobson hybrid perovskites
Authors: Fu Dongying , Ma Yanli , Su Chang-Yuan , Chen Zhuo , Fu Da-Wei
Published: July 2023

Dion–Jacobson (DJ) hybrid perovskites are considered to be of profound research interest as promising semiconductors in the photovoltaic field.
SPRA: Scalable policy‐based regulatory architecture for blockchain transactions
Authors: Yu Chuntang , Zhan Yongzhao , Jing Pujie , Song Xiangmei
Published: July 2023

Implementing effective regulation of blockchain transactions has become a research hotspot in recent years. However, most of the current regulatory schemes are customized for specific blockchain applications and lack versatility and scalability. Meanwhile, these schemes cannot guarantee fairness due to the non‐disclosure of regulatory policies and regulatory processes. To address these issues, a scalable policy‐based regulatory architecture (SPRA) is proposed for blockchain transactions that separates regulation and application to provide sufficient scalability. SPRA is a four‐layer model (permission layer, regulation layer, bridge layer, and business layer). A regulatory policy description language (XRPL) is designed to define the regulatory rules and specifications for interoperability between the layers. A decentralized jury mechanism (JuryBC) based on the Shamir threshold secret sharing algorithm and Pedersen commitment is proposed at the regulation layer to avoid regulatory arbitrariness and unfairness. We also construct a secure and efficient regulatory data sharing scheme (RDShare) at the business layer using an attribute‐based encryption algorithm. The key parameters in both JuryBC and RDShare can be specified in the regulatory policy to suit different application scenarios. Finally, the security of the architecture is analyzed and the feasibility and scalability of the architecture through simulation experiments are demonstrated.
A super‐high‐speed PM motor drive for centrifugal air compressor used in fuel cell unmanned aerial vehicle
Authors: Zhang Qian , Yang Dengfeng , Kong Qingyi , Sun Xiuxiu , Hu Zunyan
Published: July 2023

The authors show a PM motor drive with the maximum speed of 170,000 r/min for a super‐high‐speed centrifugal air compressor, which is used in high‐altitude unmanned aerial vehicle (UAV). Conventional turbochargers used in high‐altitude UAV are usually driven by the exhaust of the engine in the fuel cell system; however, the exhaust is composed of vapour and water drop, which can't drive a mechanical turbocharger effectively. In this circumstance, a super‐high‐speed electric centrifugal compressor becomes attractive to boost the air pressure and improve overall efficiency. A wide‐speed‐adaptive sliding mode observer (WSA‐SMO) is adopted to realise the super‐high‐speed sensorless control. A super‐high‐speed motor drive system is developed based on the WSA‐SMO. The current waveform at 170,000 r/min is shown to prove the steady state performance. The acceleration curves and start/stop curves are shown to demonstrate the excellent dynamic performances.
Methodology for scheduling long‐term replacement of aging power transformers, considering risk
Authors: Cerón Piamba Andrés Felipe , Romero Quete Andrés Arturo , Aponte Mayor Guillermo
Published: July 2023

This article presents an optimization methodology to schedule the replacement of power transformers (PT) into a fleet. The objective is the minimization of the summation of the risk indices of the PT. Each PT risk index is calculated from the estimation of the life used and the strategic importance of the unit. The PT life used is estimated as a relationship of the solid insulation polymerization degree, where aging processes due to oxidation, hydrolysis, and pyrolysis are considered from the calendar date when the unit starts its operation until different future scenarios. For the calculation of the PT strategic importance, financial, security, environmental, and network performance aspects are considered. Then, using the optimization model, together with the CAPEX and the available budget over a planning time, a strategy for optimally replacing the critical units is determined. The model was applied for a group of 102 units, demonstrating its applicability and effectiveness. The developed methodology serves to support the manager of these assets in making decisions in the long term.
Varistor coupling method and recommendation parameters for combination wave test
Authors: Zhou Mi , Zhao Weihan , Wang Dongdong , Fan Haoshen , Cai Li , Wang Jianguo , Fan Yadong
Published: July 2023

Varistor coupling is recommended by International Telecommunication Union in combination wave test waveforms of surge protective devices (SPD), although the varistor coupling method and recommendation parameters for the combination wave test are not well understood. The waveform influencing characteristics introduced by varistor coupling are studied in detail in this paper. Low‐voltage varistors, with maximum operating voltages ranging from 130 to 750 V, are adopted here in the OrCAD/PSpice environment to analyze the influence of varistor coupling on the output characteristic of the combination wave generator (CWG) in test levels of 0 to 20 kV. Simulation results show that, owing to varistor coupling, the reverse oscillation phenomena will arise in the open‐circuit voltages (OCVs). Also owing to varistor coupling, compared with those generated directly by a CWG, the peak value, the front time, and the tail time for both OCV and short‐circuit current will decrease, whereas the virtual impedance will increase. Moreover, the lower the test level, or the higher the maximum operating voltage of the varistor, the more serious this effect. Experiments have also been conducted here, and our simulation results are found to match the experimental ones well. It seems that, compared with the conventional capacitor coupling, the range of the voltage of power supply networks and the levels of combination wave test by varistor coupling have to be limited to a great extent. Varistor coupling for combination wave test of SPD should be only used in special cases and special test levels where there are no strict waveform limitations.
CO2 emission coupled power generation mix evolution with flexible energy resources
Authors: Li Lingtao , Xiang Yue , Guo Yongtao , Zeng Pingliang , Xu Weiting , Liu Youbo , Liu Junyong
Published: July 2023

Decarbonisation is the key to solving the environmental pollution caused by greenhouse gases, and the development pathways of power systems are the focus of the energy transition process. In the absence of direct energy development data, a CO2 emission model of regional power system based on a collaborative method is proposed. An estimable method of policy coordination is used to consider macro factors based on system dynamics and optimal allocation of high renewable permeable power system with a flexible resource combination is established to consider micro factors based on random production simulation. The development pathways of power systems under different national policy objectives are deduced through system dynamics. In the case study of the decarbonisation evolution pathways, two strategies are proposed to deduce the energy structure with high‐penetration renewable energy and flexible resources according to the drive of the CO2 emission target. The optimal development evolution pathways decisions for decarbonisation corresponding to policy targets are simulated and analysed under different scenarios.
Deciphering the radio–star formation correlation on kpc scales
Authors: Vollmer B. , Soida M. , Beck R. , Kenney J. D. P.
Published: July 2023

The relation between the resolved star formation rate (SFR) per unit area and the nonthermal radio continuum emission is studied in 21 Virgo cluster galaxies and the two nearby spiral galaxies, NGC 6946 and M 51. For the interpretation and understanding of our results, we used a 3D model where star formation, 2D cosmic-ray (CR) propagation, and the physics of synchrotron emission are included. Based on the linear correlation between the SFR per unit area and the synchrotron emission and its scatter, radio-bright and radio-dim regions can be robustly defined for our sample of spiral galaxies. We identified CR diffusion or streaming as the physical causes of radio-bright regions of unperturbed symmetric spiral galaxies as NGC 6946. The enhanced magnetic field in the region of interstellar medium (ISM) compression via ram pressure is responsible for the southwestern radio-bright region in NGC 4501. We identified the probable causes of radio-bright regions in several galaxies as CR transport, via either gravitational tides (M 51) or galactic winds (NGC 4532) or ram pressure stripping (NGC 4330 and NGC 4522). Three galaxies are overall radio dim: NGC 4298, NGC 4535, and NGC 4567. Based on our model of synchrotron-emitting disks, we suggest that the overall radio-dim galaxies have a significantly lower magnetic field than expected by equipartition between the magnetic and turbulent energy densities. We suggest that this is linked to the difference between the timescales of the variation in the SFR and the small-scale dynamo. In NGC 4535, shear motions increase the total magnetic field strength via the induction equation, which leads to enhanced synchrotron emission with respect to the SFR in an otherwise radio-dim galactic disk. Radio-bright regions frequently coincide with asymmetric ridges of polarized radio continuum emission, and we found a clear albeit moderate correlation between the polarized radio continuum emission and the radio/SFR ratio. When compression or shear motions of the ISM are present in the galactic disk, the radio-bright regions are linked to the commonly observed asymmetric ridges of polarized radio continuum emission and represent a useful tool for the interaction diagnostics. The magnetic field is enhanced (as observed in NGC 4535 and NGC 4501) and ordered by these ISM compression and shear motions. Whereas the enhancement of the magnetic field is rather modest and does not significantly influence the radio-SFR correlation, the main effect of ISM compression and shear motions is the ordering of the magnetic field, which significantly affects the CR transport. Cosmic-ray energy losses and transport also affect the spectral index, which we measured between 4.85 and 1.4 GHz. The influence of CR losses and transport on the spectral index distribution with respect to the synchrotron/SFR ratio is discussed with the help of model calculations. Based on our results, we propose a scenario for the interplay between star formation, CR electrons, and magnetic fields in spiral galaxies.
Marine protected areas for resilience and economic development
Authors: Hailu Fitih F. , Bitew Worku T. , Ayele Tsegaye G. , Zawka Simon D.
Published: July 2023

In this research, we attempt to give a comparative analysis of the space allocation of multiple-use marine protected areas (MPAs) including but not limited to the introduction of aquaculture in the area. Specifically, we consider the case where there is a need to develop MPAs for the conservation of the environment and ecological diversity. There is also a prevailing call for the establishment of aquaculture activities within the area to meet societal demands. Although aquaculture has negative externalities on MPAs, it helps to reduce the pressure on the capture fishery and increases the supply of fish. We develop a deterministic bioeconomic model that describes the transition dynamics and interrelationships of the systems. We find an optimal aquaculture size relative to the optimal size of MPAs that maximizes the overall economic and ecological benefits. Using numerical methods we determine the trajectory of optimal solutions, the recovery rate of the stocks in and outside the MPAs, and the expansion rate of the aquaculture. Sensitivity analysis was also performed to see the effect of a change in the parameters on the optimal solutions. The numerical results show that MPAs are resilient after the implementation of aquaculture. Moreover, the effectiveness of the optimized management system mainly depends on the cooperative planning between the capture fishery and aquaculture managers.
Cost modeling of the urbanized territories living environment
Authors: Sarchenko Vladimir , Khirevich Sergey
Published: July 2023

In recent years, the main vector of scientific research in the field of regional economics has been the development of large localized economic systems. It was proposed to use the term “urbanized territory” as one of the generalizing terms for describing socio-economic systems. The analysis of various interpretations of the concept of “urbanized territory” allowed us to identify and form a limited list of their inherent characteristics and propose an author’s approach to their definition. A general formalized cost model for the development of urbanized territories is proposed, which includes basic infrastructure elements, as well as improvement coefficients for each block. Taking into account the projected investments, the structure of financing measures for the formation of the cost part within the framework of cost modeling, as well as cost distribution options among the main subjects of the formation of an urbanized territory are proposed. Due to the fact that urbanized territories have different levels of urban planning value, the authors in the article propose a marginality coefficient of the territory, which characterizes the change in the market value of real estate in a specific location of the urbanized territory, depending on the formed parameters of the living environment.
Survey data of the COVID-19 pandemic impact on construction workforce: A case of Vietnam
Authors: Quoc Toan Nguyen , Van Tam Nguyen
Published: July 2023

A dataset was constructed to examine the impact of the COVID-19 pandemic on the construction workforce in a developing country. The data derive from a survey collected from 123 valid respondents who previously participated in or direct implementation of construction projects in Vietnam during the COVID-19 pandemic. The survey was distributed by utilizing an online questionnaire, which is composed of two sections: (1) demographic information and project characteristics, and (2) the COVID-19 impact on five aspects of the construction workforce took the form of a 5-point Likert scale. The entire dataset is stored in an Excel file (.xls) for formal analysis in IBM SPSS v.20. The entire questionnaire is included as a supplementary file.
Business model analysis of small-scale spacecraft projects
Authors: Pilyugina Anna , Borodin Dmitry , Volokhova Tatiana
Published: July 2023

The use of data combined from various sources, including satellite data, expands the possibilities of predictive management of enterprises and organizations of all spheres of activity, contributing to the growth of economic entities’ efficiency in the conditions of digital transformation. The analysis of the satellite systems market and identification of the peculiarities of the growth of the commercial satellites and constellations segment is simultaneously reflected in the activity of investors, increased availability of small spacecraft, and improvement of their consumer characteristics. The study aims to analyze the business models of the projects of companies operating in the market of satellite systems, in particular, providing commercial opportunities for the use of satellites of ultra-small class to solve a wide range of problems. The basis of the research methods used in the work is a comparative analysis of the companies operating in the market of satellite systems, technical and economic analysis of the solutions proposed by them, and investment analysis of the projects implemented in the market. A classification of business models for commercial satellite systems was developed, which allowed identifying the pros and cons of different approaches, as well as cash flow modeling to justify the applicability and prospects of development of the identified business models.
Foreign policy in the context of modern geopolitics and its impact on the work of transnational companies in Russia
Authors: Fei Zhao , Orzhakhovskaya Irina , Orekhova Ludmila , Dymchenko Olga
Published: July 2023

The purpose of the present research paper is to make a comprehensive analysis of the Russian foreign policy activities in terms of potential risks and possible consequences of termination, suspension of transnational companies’ activities for the Russian economy. The foreign policy of the Russian Federation makes it possible to set due priorities, define proper formats and set the course for the entire foreign policy of the state, which undoubtedly requires proper organisational and legal institutionalisation. This is why exploring the operation of transnational companies in Russia is extremely important in the current geopolitical environment which is presently being formed with a focus on the sanctions-related pressure against our state on the part of unfriendly countries. The present essay considers the statistical data on foreign multinationals that have left Russia and the measures taken by the Russian government towards adaptation and designing a due economic policy course in the conditions of market economy. The research brought the authors to a substantiated conclusion that foreign policy activities are directly and closely connected with the work of transnational corporations; therefore, the competent internal policy of the Russian Federation will enable the society and corporate entities to adapt to the new realities and to pursue the desired foreign policy activities in the country’s interests, avoiding pressure from unfriendly countries.
Water Condensation and Gas Exchange Correlation in Different Models and Fibers of Blood Oxygenators: “How Can We Improve Performance?”
Authors: Condello Ignazio
Published: July 2023

Creation of water condensation in blood oxygenators is a phenomenon that is constantly present during cardiopulmonary bypass and in medium- to long-term extracorporeal life support. Clinical observation of condensation at the oxygenator exit is still a common event normally associated with sudden cooling of the gas flow proximal to the outlet cover (after exiting the fiber bundle), where the warming effect of blood is no longer present. Condensation could progressively obstruct a certain number of fibers, reducing the efficiency of gaseous exchange in the membrane of the oxygenator surface. The study included 48 patients divided into four oxygenator groups of 12 each: group 1 used an Inspire 6 F oxygenator from Livanova; group 2, an Affinity Fusion from Medtronic; group 3, an Alone from Eurosets, and group 4, an ECMO Alone from Eurosets; while the last group used an ECMO Alone oxygenator from Eurosets with polymethylpentene fiber. Each group of oxygenators comprising 12 patients were divided into two groups, namely, A and B, with six patients in each group. Group A used mild hypothermia during the procedure, and group B of six patients used normothermia; Groups A and B were further subdivided into four subgroups: A1, A2, B1, and B2, each consists of three patients; subgroups A1 and B1 used negative aspiration (−8 mmHg) measuring humidity (%) and temperature (°C) in the gas oxygenator output; consequently, a measurement system was necessary to be created; Subgroups A2 and B2 did not use negative aspiration in the oxygenator outlet. No statistically significant difference for PaO2 and humidity values was found in polypropylene and polymethylpentene oxygenators with mild hypothermia management with vacuum and without vacuum in the gas outlet in the first 60 minutes and 60 minutes later during cardiopulmonary bypass. In normothermia, a statistically significant difference in the PaO2–humidity relationship was observed with polypropylene and polymethylpentene fiber models. Results of this study show an inversely proportional correlation between gas exchange and condensation in statistically significant values during the use of normothermia and a reduction in oxygenation performance, in polypropylene and polymethylpentene fiber oxygenators.
Are We Able to Dose Protamine Accurately Yet? A Review of the Protamine Conundrum
Authors: Hecht Patrick , Besser Martin , Falter Florian
Published: July 2023

Without anticoagulation, cardiopulmonary bypass would not have developed over the last nearly 60 years into one of the most influential innovations in medicine; without the ability to reverse anticoagulation, cardiac surgery might not have become the common intervention, which is now practiced globally. Despite the recent breathtaking developments in extracorporeal technology, heparin and protamine remain the pillars of anticoagulation and its reversal until this day. However, there is still much controversy in particular about protamine dosing regimens. A number of recent publications investigating various approaches to dosing protamine have rekindled this debate. This review is seeking to capture the current thinking about protamine dosing after cessation of cardiopulmonary bypass.
Steady-state inhomogeneous diffusion with generalized oblique boundary conditions
Authors: Bradji Abdallah , Lesnic Daniel
Published: July 2023

We consider the elliptic diffusion (steady-state heat conduction) equation with spacedependent conductivity and inhomogeneous source subject to a generalized oblique boundary condition on a part of the boundary and Dirichlet or Neumann boundary conditions on the remaining part. The oblique boundary condition represents a linear combination between the dependent variable and its normal and tangential derivatives at the boundary. We first prove the well-posedness of the continuous problems. We then develop new finite volume schemes for these problems and prove rigorously the stability and convergence of these schemes.We also address an application to the inverse corrosion problem concerning the reconstruction of the coefficients present in the generalized oblique boundary condition that is prescribed over a portion Γ0 of the boundary ∂Ω from Cauchy data on the complementary portion Γ1 = ∂Ω\Γ0.
Effects of cutting head load on fatigue life of bolter miner cutting arm
Authors: Li Ang , Wang Bukang , Wang Teng , Guo Zhifu , Yan Zhaokun
Published: July 2023

In the operation of bolter miners, the cutting arm is an essential and weak part and its fatigue life directly affects its performance. This study aimed to investigate the influence of the cutting head load on the fatigue life of a cutting arm using the DEM-MFBD (Discrete Element Method-Multi Flexible Body Dynamics) bi-directional coupling technique. The EJM340 bolter miner was chosen as the research object, and a three-dimensional solid model of the bolter miner was built using the RecurDyn software. The cutting arm was flexibly modelled, and the tunnel model was built using the EDEM software. The motion parameters of the bolter miner and cutting head load were transferred through the bi-directional coupling interface to obtain the loads and stress parameters during the entire tunnel cutting process. Based on the stress-time variation, the fatigue life of the cutting arm was calculated, the overall damage and crack initiation locations were obtained, and the minimum number of cutting arm cycles was determined. The accuracy of the virtual model is verified through field experiments. The analysis results indicated that the crack emergence location and fatigue life obtained from the simulation were in agreement with the experimental results.
So kann es auch gehen
Authors: Koch Marie-Luise , Weber Ruth Anna
Published: July 2023

Der Klinikträger Vitos in Hessen hat in enger Kooperation mit der Steinbeis Hochschule für seine knapp 10 000 Mitarbeiter einen sehr innovativen Weg gefunden, die duale hochschulische Pflegeausbildung als erfolgreichen Akademisierungsprozess im Unternehmen zu implementieren.
Incidence and Long-Term Implications of Type 2 Endoleak after Endovascular Repair of Abdominal Aortic and Aortoiliac Aneurysms
Authors: Monzio-Compagnoni Nicola , Zuccon Gianmarco , Barbosa Fabiane , Rampoldi Antonio Gaetano , Tolva Valerio Stefano
Published: July 2023

Type 2 endoleak has been proved not to significantly increase the risk of aneurysm rupture. However, it is associated with aneurysm enlargement and may require secondary interventions. Its role has been widely investigated, but a definitive consensus about its management has still not been obtained. We performed a retrospective, single-center observational study that investigates the incidence of type 2 endoleak and its implications in the long-term follow-up in all the patients who underwent endovascular aortic repair (EVAR) for abdominal aortic aneurysm from 2011 to 2016 at our institution. A total of 216 patients who underwent EVAR during the specified time period were enrolled, and 85 of them (39%) developed type 2 endoleak in their follow-up. Thirty-one of the patients who developed type 2 endoleak faced an aneurysm sac growth > 10 mm and required secondary intervention. Only nine of them showed resolution of the leak. In the long-term follow-up, patients who developed type 2 endoleak after EVAR did not show a significantly increased mortality compared with those who did not, but some of them required late open conversion due to aneurysm sac enlargement and some other developed a secondary type 1 endoleak which required correction. The management of type 2 endoleak remains debated, despite consensus exist regarding the need for intervention when a > 10-mm aneurysm sac growth is observed. Further studies are necessary to better define which are the “high-risk” type 2 endoleaks and identify the patients who would benefit more from correction.
A recurring absence gesture in Northern Pastaza Kichwa
Authors: Rice Alexander
Published: July 2023

In this paper I posit the use of a spread-fingered hand torque gesture among speakers of Northern Pastaza Kichwa (Quechuan, Ecuador) as a recurrent gesture conveying the semantic theme ofabsence. The data come from a documentary video corpus collected by multiple researchers. The gesture prototypically takes the form of at least one pair of rapid rotations of the palm (the torque). Fingers can be spread or slightly flexed towards the palm to varying degrees. This gesture is performed in a consistent manner across speakers (and expressions) and co-occurs with a set of speech strings with related semantic meanings. Taking a cognitive linguistic approach, I analyse the form, function, and contexts of this gesture and argue that, taken together, it should be considered a recurrent gesture that indicatesabsence.
Hierarchical team structure and multidimensional localization (or siloing) on networks
Authors: Hébert-Dufresne Laurent , St-Onge Guillaume , Meluso John , Bagrow James , Allard Antoine
Published: July 2023

Knowledge silos emerge when structural properties of organizational interaction networks limit the diffusion of information. These structural barriers are known to take many forms at different scales—hubs in otherwise sparse organizations, large dense teams, or global core-periphery structure—but we lack an understanding of how these different structures interact and shape dynamics. Here we take a first theoretical step in bridging the gap between the mathematical literature on localization of spreading dynamics and the more applied literature on knowledge silos in organizational interaction networks. To do so, we introduce a new model that considers a layered structure of teams to unveil a new form of hierarchical localization (i.e. the localization of information at the top or center of an organization) and study its interplay with known phenomena of mesoscopic localization (i.e. the localization of information in large groups), k-core localization (i.e. around denser subgraphs) and hub localization (i.e. around high degree stars). We also include a complex contagion mechanism by considering a general infection kernel which can depend on hierarchical level (influence), degree (popularity), infectious neighbors (social reinforcement) or team size (importance). This very general model allows us to explore the multifaceted phenomenon of information siloing in complex organizational interaction networks and opens the door to new optimization problems to promote or hinder the emergence of different localization regimes.
Understanding resource consumption and sustainability in the built environment
Authors: Stillwell Ashlynn S , Cominola Andrea , Beal C D
Published: July 2023

The built environment and the communities that contribute to its infrastructure, services, and systems are important aspects of human life. As urbanization increases, time spent indoors also increases, with urban residents spending most of their time indoors. This indoor lifestyle concentrates the effects of water, energy, and food consumption in the built environment, with local, regional, and global implications for interconnected resources and their supply chains. As such, resource consumption in the built environment has sustainability implications, especially with increasing populations and living standards.

This focus issue, ‘Resource Consumption and Sustainability in the Built Environment’, examines infrastructure and sustainability from many perspectives. The articles investigate water, energy, and/or food consumption across various scales, ranging from a single household to nationwide supply chains to global climate models. Each paper in this issue considers essential elements of context, since water, energy, and food have local and global sustainability considerations, along with multi-sector dependencies within urban metabolism. Digital technologies, data, and modeling approaches are opening new opportunities for better monitoring and understanding of the built environment. In an uncertain future, understanding resource consumption in the built environment and its implications for the environment and society is a critical aspect of overall human health and well-being. In-depth knowledge of the dynamics shaping the built environment is paramount to supporting adaptive infrastructure planning and management, including supply and demand interventions to help cities and communities become climate neutral while increasing equity in access and affordability of resources and services.