bluuebunny/crossref_metadata_2025 huggingface dataset:
Predicting of tunneling resistivity between adjacent nanosheets in graphene–polymer systems
Authors: Zare Yasser , Gharib Nima , Nam Dong-Hyun , Chang Young-Wook
Published: August 2023

In this work, the tunneling resistivity between neighboring nanosheets in grapheme–polymer nanocomposites is expressed by a simple equation as a function of the characteristics of graphene and tunnels. This expression is obtained by connecting two advanced models for the conductivity of graphene-filled materials reflecting tunneling role and interphase area. The predictions of the applied models are linked to the tested data of several samples. The impressions of all factors on the tunneling resistivity are evaluated and interpreted using the suggested equation. The calculations of tunneling resistivity for the studied examples by the model and suggested equation demonstrate the same levels, which confirm the presented methodology. The results indicate that the tunneling resistivity decreases by super-conductive graphene, small tunneling width, numerous contacts among nanosheets and short tunneling length.
Ancient DNA confirms diverse origins of early post-Columbian cattle in the Americas
Authors: Delsol Nicolas , Stucky Brian J. , Oswald Jessica A. , Cobb Charles R. , Emery Kitty F. , Guralnick Robert
Published: August 2023

Before the arrival of Europeans, domestic cattle (Bos taurus) did not exist in the Americas, and most of our knowledge about how domestic bovines first arrived in the Western Hemisphere is based on historical documents. Sixteenth-century colonial accounts suggest that the first cattle were brought in small numbers from the southern Iberian Peninsula via the Canary archipelago to the Caribbean islands where they were bred locally and imported to other circum-Caribbean regions. Modern American heritage cattle genetics and limited ancient mtDNA data from archaeological colonial cattle suggest a more complex story of mixed ancestries from Europe and Africa. So far little information exists to understand the nature and timing of the arrival of these mixed-ancestry populations. In this study we combine ancient mitochondrial and nuclear DNA from a robust sample of some of the earliest archaeological specimens from Caribbean and Mesoamerican sites to clarify the origins and the dynamics of bovine introduction into the Americas. Our analyses support first arrival of cattle from diverse locales and potentially confirm the early arrival of African-sourced cattle in the Americas, followed by waves of later introductions from various sources over several centuries.
Dual Ni/Co-hemin metal–organic framework-PrGO for high-performance asymmetric hybrid supercapacitor
Authors: Mousaabadi Kimia Zarean , Ensafi Ali A. , Naghsh Erfan , Hu Jin-Song , Rezaei Behzad
Published: August 2023

In this study, we conducted direct synthesis of a dual metal–organic framework (Ni/Co-Hemin MOF) on phosphorous-doped reduced graphene oxide (PrGO) to serve as an active material in high-performance asymmetrical supercapacitors. The nanocomposite was utilized as an active material in supercapacitors, exhibiting a noteworthy specific capacitance of 963 C g−1 at 1.0 A g−1, along with a high rate capability of 68.3% upon increasing the current density by 20 times, and superior cycling stability. Our comprehensive characterization and control experiments indicated that the improved performance can be attributed to the combined effect of the dual MOF and the presence of phosphorous, influencing the battery-type supercapacitor behavior of GO. Additionally, we fabricated an asymmetric hybrid supercapacitor (AHSC) using Ni/Co-Hemin/PrGO/Nickel foam (NF) and activated carbon (AC)/NF. This AHSC demonstrated a specific capacitance of 281 C g−1 at 1.0 A g−1, an operating voltage of 1.80 V, an impressive energy density of 70.3 Wh kg−1 at a high power density of 0.9 kW kg−1. Notably, three AHSC devices connected in series successfully powered a clock for approximately 42 min. These findings highlight the potential application of Hemin-based MOFs in advanced supercapacitor systems.
Light exposure behaviors predict mood, memory and sleep quality
Authors: Siraji Mushfiqul Anwar , Spitschan Manuel , Kalavally Vineetha , Haque Shamsul
Published: August 2023

Ample research has shown that light influences our emotions, cognition, and sleep quality. However, little work has examined whether different light exposure-related behaviors, such as daytime exposure to electric light and nighttime usage of gadgets, especially before sleep, influence sleep quality and cognition. Three-hundred-and-one Malaysian adults (MeanAge±SD = 28 ± 9) completed the Light Exposure Behavior Assessment tool that measured five light exposure behaviors. They also completed the Morningness-Eveningness Questionnaire, Positive and Negative Affect Schedule, Pittsburgh Sleep Quality Index, and single items assessing trouble in memory and concentration. A partial least square structural equation model, showing 72.72% predictive power, revealed that less use of wearable blue filters outdoors during the day and more within one hour before sleep predicted early peak time (direct effect = −0.25). Increased time spent outdoors predicted a positive affect (direct effect = 0.33) and a circadian phase advancement (direct effect: rising time = 0.14, peak time = 0.20, retiring time = 0.17). Increased use of mobile phone before sleep predicted a circadian phase delay (direct effect: retiring time = −0.25; rising time = −0.23; peak time = −0.22; morning affect = −0.12), reduced sleep quality (direct effect = 0.13), and increased trouble in memory and concentration (total effect = 0.20 and 0.23, respectively). Increased use of tunable, LED, or dawn-simulating electric light in the morning and daytime predicted a circadian phase advancement (direct effect: peak time = 0.15, morning affect = 0.14, retiring time = 0.15) and good sleep quality (direct effect = −0.16). The results provide valuable insights into developing a healthy light diet to promote health and wellness.
Effects of dexmedetomidine on A549 non-small cell lung cancer growth in a clinically relevant surgical xenograft model
Authors: Jun Ji Hae , Shim Jae-Kwang , Oh Ju Eun , Kim Kwang-Sub , Kwak Young-Lan , Soh Sarah
Published: August 2023

The perioperative milieu following curative lung cancer surgery is accompanied by a stress response. Inflammasomes mediate inflammation resulting in the unfavorable immunomodulation of natural killer (NK) cell activity, thus promoting cancer progression. This study aimed to investigate the effects of dexmedetomidine (DEX) on the innate immune system, chronic inflammation, and lung cancer progression in a clinically relevant human-to-mouse xenograft model. The human lung cancer cell line A549-luc was subcutaneously injected into BALB/c nude mice. Saline or dexmedetomidine was administered for 2 weeks via an implanted osmotic minipump. After 4 weeks, the tumor size and weight were measured. NK cell activity, serum interferon-γ, interleukin (IL)-1β and tumor necrosis factor (TNF)-α levels were also measured. IL-10, IL-18, and inflammasome expression levels were assessed in the tumor tissues. DEX caused a decrease in tumor size, tumor weight, and IL-1β and TNF-α levels and an increase in NK cell activity and IFN-γ level. IL-10 and IL-18 expression was significantly decreased in the DEX-treated group. NLRP3, CTP1A, TXNIP, ASC, IL-1β, and caspase-1 protein levels were decreased in the DEX-treated group. In conclusion, the use of DEX for 2 weeks inhibited lung cancer progression by suppressing inflammasome- and IL-1β signaling-induced inflammation and enhancing NK cell activity.
Cardiac progenitor cell-derived extracellular vesicles promote angiogenesis through both associated- and co-isolated proteins
Authors: Roefs Marieke Theodora , Bauzá-Martinez Julia , van de Wakker Simonides Immanuel , Qin Jiabin , Olijve Willem Theodoor , Tuinte Robin , Rozeboom Marjolein , Snijders Blok Christian , Mol Emma Alise , Wu Wei , Vader Pieter , Sluijter Joost Petrus Gerardus
Published: August 2023

Extracellular vesicles (EVs) are cell-derived lipid bilayer-enclosed particles that play a role in intercellular communication. Cardiac progenitor cell (CPC)-derived EVs have been shown to protect the myocardium against ischemia-reperfusion injury via pro-angiogenic effects. However, the mechanisms underlying CPC-EV-induced angiogenesis remain elusive. Here, we discovered that the ability of CPC-EVs to induce in vitro angiogenesis and to stimulate pro-survival pathways was lost upon EV donor cell exposure to calcium ionophore. Proteomic comparison of active and non-active EV preparations together with phosphoproteomic analysis of activated endothelial cells identified the contribution of candidate protein PAPP-A and the IGF-R signaling pathway in EV-mediated cell activation, which was further validated using in vitro angiogenesis assays. Upon further purification using iodixanol gradient ultracentrifugation, EVs partly lost their activity, suggesting a co-stimulatory role of co-isolated proteins in recipient cell activation. Our increased understanding of the mechanisms of CPC-EV-mediated cell activation will pave the way to more efficient EV-based therapeutics.
General formalism of the quantum equivalence principle
Authors: Das Saurya , Fridman Mitja , Lambiase Gaetano
Published: August 2023

A consistent theory of quantum gravity will require a fully quantum formulation of the classical equivalence principle. Such a formulation has been recently proposed in terms of the equality of the rest, inertial and gravitational mass operators, and for non-relativistic particles in a weak gravitational field. In this work, we propose a generalization to a fully relativistic formalism of the quantum equivalence principle, valid for all background space-times, as well as for massive bosons and fermions. The principle is trivially satisfied for massless particles. We show that if the equivalence principle is broken at the quantum level, it implies the modification of the standard Lorentz transformations in flat space-time and a corresponding modification of the metric in curved space-time by the different mass ratios. In other words, the observed geometry would effectively depend on the properties of the test particle. Testable predictions of potential violations of the quantum equivalence principle are proposed.
Cortical microstructural changes predict tau accumulation and episodic memory decline in older adults harboring amyloid
Authors: Gagliardi Geoffroy , Rodriguez-Vieitez Elena , Montal Victor , Sepulcre Jorge , Diez Ibai , Lois Cristina , Hanseeuw Bernard , Schultz Aaron P. , Properzi Michael J. , Papp Kathryn V. , Marshall Gad A. , Fortea Juan , Johnson Keith A. , Sperling Reisa A. , Vannini Patrizia
Published: August 2023

Introduction

Non-invasive diffusion-weighted imaging (DWI) to assess brain microstructural changes via cortical mean diffusivity (cMD) has been shown to be cross-sectionally associated with tau in cognitively normal older adults, suggesting that it might be an early marker of neuronal injury. Here, we investigated how regional cortical microstructural changes measured by cMD are related to the longitudinal accumulation of regional tau as well as to episodic memory decline in cognitively normal individuals harboring amyloid pathology.

Methods

122 cognitively normal participants from the Harvard Aging Brain Study underwent DWI, T1w-MRI, amyloid and tau PET imaging, and Logical Memory Delayed Recall (LMDR) assessments. We assessed whether the interaction of baseline amyloid status and cMD (in entorhinal and inferior-temporal cortices) was associated with longitudinal regional tau accumulation and with longitudinal LMDR using separate linear mixed-effects models.

Results

We find a significant interaction effect of the amyloid status and baseline cMD in predicting longitudinal tau in the entorhinal cortex (p = 0.044) but not the inferior temporal lobe, such that greater baseline cMD values predicts the accumulation of entorhinal tau in amyloid-positive participants. Moreover, we find a significant interaction effect of the amyloid status and baseline cMD in the entorhinal cortex (but not inferior temporal cMD) in predicting longitudinal LMDR (p < 0.001), such that baseline entorhinal cMD predicts the episodic memory decline in amyloid-positive participants.

Conclusions

The combination of amyloidosis and elevated cMD in the entorhinal cortex may help identify individuals at short-term risk of tau accumulation and Alzheimer’s Disease-related episodic memory decline, suggesting utility in clinical trials.
Acylhydrazone functionalized naphthalene-based self-assembled supramolecular gels for efficient fluorescence detection of Fe3+
Authors: Liu Jutao , Wu Shang , Fu Shuaishuai , Wang Jiajia , Zhang Penghui , Wang Yanbin , Chen Chen , Zhao Xiangfei , Li Zhenhua , Yang Quanlu
Published: August 2023

A new gel factor (named N) has been successfully designed and synthesized, which contains the conventional fluorophore naphthalene with the acylhydrazone bond as the self-assembly site.
Matrisomal components involved in regenerative wound healing in axolotl and Acomys: implications for biomaterial development
Authors: Avila-Martinez Nancy , Gansevoort Merel , Verbakel Juul , Jayaprakash Haarshaadri , Araujo Ines Maria , Vitorino Marta , Tiscornia Gustavo , van Kuppevelt Toin H. , Daamen Willeke F.
Published: August 2023

Acomys and axolotl share key regenerative components of the matrisome and glycosaminoglycan biosynthesis during scarless wound healing. Addition of key matrisomal components to biomaterials may improve skin wound healing in non-regenerating mammals.
Electron-deficient cyclopropenium cations as Lewis acids in FLP chemistry
Authors: Mandal Dipendu , Qu Zheng-Wang , Grimme Stefan , Stephan Douglas W.
Published: August 2023

Cyclopropenium cations are shown to act as Lewis acids participating in both classical and FLP chemistry with phosphines and alkynes.
First principles study of structural and electron properties in scorodite: the bulk and surface
Authors: Chen Manjiao , Hu Xinjun , Zhou Xinjun , Tian Jianping , Yi Xinqiang , Li Xiulan
Published: August 2023

The water molecules were neutral in scorodite bulk. The Fe atoms on the surface can coordinate with H2O or OH, but As atoms on the surface can only coordinate with OH.
Enhanced photocatalytic performance of a stable type–II PtSe2/GaSe van der Waals heterostructure
Authors: Parmar P. R. , Khengar S. J. , Sonvane Yogesh , Thakor P. B.
Published: August 2023

In this investigation, the optoelectronic properties and photocatalytic activity of two-dimensional van der Waals heterostructure PtSe2/GaSe with three different configurations have been studied using density functional theory.
Unveiling the anchoring and catalytic effect of Co@C3N3 monolayer as a high-performance selenium host material in lithium–selenium batteries: a first-principles study
Authors: Tang Shuwei , Liu Wentao , Yang Zehui , Liu Chenchen , Bai Shulin , Zhang Jingyi , Luo Dongming
Published: August 2023

The Co@C3N3 monolayer material is utilized as the selenium host material for lithium–selenium batteries with significant advantages in mitigating the undesirable shuttle effect of high-order polyselenides and improving the catalytic performance.
Selective aerobic oxidation of biomass model compound veratryl alcohol catalyzed by air-stable copper(ii) complexes in water
Authors: Jana Narayan Ch. , Behera Sourav , Maharana Suraj Kumar , Behera Rakesh R. , Bagh Bidraha
Published: August 2023

Three new copper(ii) complexes were synthesized and successfully utilized as effective catalysts for the selective aerobic oxidation of biomass derived veratryl alcohol to veratraldehyde in water as a green and sustainable reaction medium.
Steering ammonia decomposition over Ru nanoparticles on ZrO2 by enhancing metal–support interaction
Authors: Zhang Tong , Ju Xiaohua , Liu Lvye , Liu Lin , He Teng , Xu Yunhua , Wang Hanying , Chen Ping
Published: August 2023

Enhanced metal–support interaction between Ru nanoparticles and ZrO2 support can steer the catalytic activity of the supported Ru nanoparticles for the production of hydrogen from ammonia decomposition.
Effect of catalyst properties on selectivity in CO2 methanation with coupling pathway of RWGS and CO methanation
Authors: Wang Hongwei , Feng Huicong , Bao Yali , Wu Junxia , Qu Xiaotong , Zhang Xianjun , Liu Jinrong , Wang Hong
Published: August 2023

The multiplicity of catalyst structures and modification strategies makes possible different reaction pathways and selectivity of CO2 methanation, and the reaction mechanism is also controversial.
Bimetallic neutral and anionic complexes of transition metal (Co, Mn) carbonyls with indium(iii) phthalocyanine
Authors: Faraonov Maxim A. , Yudanova Evgeniya I. , Kuzmin Alexey V. , Yakushev Ilya A. , Khasanov Salavat S. , Otsuka Akihiro , Yamochi Hideki , Kitagawa Hiroshi , Konarev Dmitri V.
Published: August 2023

Heterobimetallic crystalline complexes were obtained by the reduction of indium(iii) phthalocyanine chloride in the presence of transition metal (Co, Mn) carbonyls. Structures and properties of these complexes are discussed.
Filling carbon: a microstructure-engineered hard carbon for efficient alkali metal ion storage
Authors: Chen Xiaoyang , Sawut Nurbiye , Chen Kean , Li Hui , Zhang Jun , Wang Zhe , Yang Mei , Tang Guo , Ai Xinping , Yang Hanxi , Fang Yongjin , Cao Yuliang
Published: August 2023

Carbonaceous materials are the most promising anodes for alkali metal-ion batteries (AMIBs); however, it is still a great challenge to construct carbonaceous materials with elaborate microstructures to achieve superior electrochemical performance.
Engineering an atomic-level crystal lattice and electronic band structure for an extraordinarily high average thermoelectric figure of merit in n-type PbSe
Authors: Ge Bangzhi , Lee Hyungseok , Im Jino , Choi Youngsu , Kim Shin-Yeong , Lee Ji Yeong , Cho Sung-Pyo , Sung Yung-Eun , Choi Kwang-Yong , Zhou Chongjian , Shi Zhongqi , Chung In
Published: August 2023

Multiscale defect structures driven by interstitial Cu, off-centered Pb and Se atoms and scarce anion vacancies in the new CuxPb(Se0.8Te0.2)0.95 give a record-high average ZT among all polycrystalline n-type thermoelectric materials due to high PF.
Metal-doped carbon nitride: an all-in-one photocatalyst
Authors: Pang Yamei , Li Pengfei , Ma Xiaobao , Sun Lu , Liu Yichang , Qu Dan , An Li , Sun Zaicheng
Published: August 2023

Graphitic carbon nitride (CN) has received significant attention for energy conversion. Metal doped CNs, as all-in-one photocatalysts, integrate light absorption, charge separation, and reactive site by incorporating atomic metal into CN framework.
Selective isomerization of α-pinene oxide totrans-carveol by task-specific ionic liquids: mechanistic insightsviaphysicochemical studies
Authors: Mehra Sanjay , Naikwadi Dhanaji R. , Singh Kuldeep , Biradar Ankush V. , Kumar Arvind
Published: August 2023

A waste-free chemical process involving comparatively greener solvents with recyclability is one of the desired goals of sustainable development.
Investigation on electrocatalytic performance and material degradation of an N-doped graphene-MOF nanocatalyst in emulated electrochemical environments
Authors: Talukder Niladri , Wang Yudong , Nunna Bharath Babu , Tong Xiao , Boscoboinik Jorge Anibal , Lee Eon Soo
Published: August 2023

This study presents electrochemical performance loss and correlated material degradation of an electrocatalyst, nitrogen-doped graphene integrated with a metal–organic framework (N-G/MOF), by the effect of H2O2-derived oxidative species.
First-in-class small molecule inhibitors of ICOS/ICOSL interaction as a novel class of immunomodulators
Authors: Abdel-Rahman Somaya A. , Świderek Katarzyna , Gabr Moustafa T.
Published: August 2023

The interaction of the inducible co-stimulator (ICOS) with its ligand (ICOSL) plays key roles in T-cell differentiation and activation of T-cell to B-cell functions.
Size-dependent diffusion of supported metal nanoclusters: mean-field-type treatments and beyond for faceted clusters
Authors: Lai King C. , Campbell Charles T. , Evans James W.
Published: August 2023

Size-dependent diffusion of supported faceted nanoclusters is mediated by disassembly & reassembly of outer layers of facets. A mean-field picture (random independent motion of surface atoms) fails to capture behavior.
Deep extractive and catalytic oxidative desulfurization of liquid fuels by using iron(iii) based dication ionic liquids
Authors: Zafar Anham , Din Imtiaz-ud- , Batool Saadia , Palgrave Robert G. , Yousuf Sammer
Published: August 2023

Five new dicationic ionic liquids(1–5), with varying lengths of alkyl chain and [FeCl3Br]− as the counter anion, have been synthesized, characterized by using FT-IR, Raman spectroscopy, and mass spectrometry besides single crystal X-ray analysis.
An amorphous zinc/copper double transition metal hydroxides for electrochemical simultaneous detection of dopamine, serotonin, and melatonin
Authors: Tang Shanshan , Liu Miao , Wang Wei , Liang Axin , Zhang Fulai , Luo Aiqin
Published: August 2023

A novel electrochemical sensor, whose working electrode is a glassy carbon electrode modified with zinc–copper transition metal hydroxide (ZnCu-TMH/GCE), was developed for simultaneous detection of dopamine (DA), serotonin (5-HT) and melatonin (MT).
Platinum-based nanodendrites as glucose oxidase-mimicking surrogates
Authors: Garcia-Peiro Jose I. , Bonet-Aleta Javier , Tamayo-Fraile Maria L. , Hueso Jose L. , Santamaria Jesus
Published: August 2023

Defining Pt nanodendrites as glucose oxidase-mimicking surrogates while establishing the most suitable calculation and detection approaches.
Covalent netting restrains dissolution enabling stable high-loading and high-rate iron difluoride cathodes
Authors: Xu Wenqiang , Ma Yingjie , Wang Denghui , Zhang Siyuan , Hamza Mathar , Zhi Linjie , Li Lidong , Li Xianglong
Published: August 2023

A covalent netting strategy via covalent binding between iron difluorides and the netting carbon is proposed to overcome the dissolution of metal fluoride conversion cathodes and accelerate electronic and ionic transport for high-energy batteries.
Understanding ZIF particle chemical etching dynamics and morphology manipulation: in situ liquid phase electron microscopy and 3D electron tomography application
Authors: Chang Qiang , Yang Dahai , Zhang Xingyu , Ou Zihao , Kim Juyeong , Liang Tong , Chen Junhao , Cheng Sheng , Cheng Lixun , Ge Binghui , Ang Edison Huixiang , Xiang Hongfa , Li Mufan , Song Xiaohui
Published: August 2023

In situ liquid phase transmission electron microscopy (TEM) and three-dimensional electron tomography are powerful tools for investigating the etching mechanism of MOFs and quantifing the particles morphology.
Anchoring Ni3S2/Cr(OH)3 hybrid nanospheres on Ti3C2@NF dual substrates by ion exchange for efficient urea electrolysis
Authors: Liu Yifeng , Chen Qianqiao , Zhong Qin
Published: August 2023

The optimized Ni3S2/Cr(OH)3–Ti3C2@NF electrode exhibits obvious advantages and excellent stability in a solution of 1 M KOH containing 0.5 M urea, with an overpotential of 130 mV at 10 mA cm−2 for the UOR.
A decade update on the application of β-oxodithioesters in heterocyclic synthesis
Authors: Dong Zhi-Bing , Gong Zhiying , Dou Qian , Cheng Bin , Wang Taimin
Published: August 2023

A decade update on the application of β-oxodithioesters in the construction of sulfur-containing heterocycles, non-sulfur heterocycles, and other open-chain frameworks is presented.
Expeditious access tocis-β-aryl, γ-alkyl disubstituted (±)-γ-butyrolactonesvianickel-hydride catalysis
Authors: Ojo O. Stephen , Steel Hannah J. , Miras Haralampos N.
Published: August 2023

The 1,4-reduction of β- and γ-substituted butenolides using 5 mol% of NiCl2·6H2O and NaBH4in MeOH for rapid access tocis-β,γ-disubstituted γ-butyrolactones is described.
A three-dimensional Mn(ii) coordination polymer with ferroelasticity obtained by introducing coligands to form novel networks
Authors: Xu Ke , Zhou Zining , Men Jintao , Zhou Qingjie , Ye Qiong
Published: August 2023

Ferroelastic complex {Mn[(i-Pr)3PO](dca)2} with new topological networks was obtained. The full elastic constants of 1 have been calculated using density functional theory.
Optical properties of nanostructured antiviral and anticancer drugs
Authors: Pisu Alessandra Angela , Siddi Francesco , Cappellini Giancarlo , Cardia Roberto
Published: August 2023

Computational study on the optical absorption properties of drug delivery carriers in different bonding states with some examples of antiviral and anticancer drugs (favipiravir and 5-flurouracil).
Design of screen-printed potentiometric platform for sensitive determination of mirabegron in spiked human plasma; molecular docking and transducer optimization
Authors: Mouhamed Aya A. , Eltanany Basma M. , Mostafa Nadia M. , Elwaie Tamer A. , Nadim Ahmed H.
Published: August 2023

Optimum ionophore and transducer selection for screen printed mirabegron electrode
Efficacy of modified carbon molecular sieve with iron oxides or choline chloride-based deep eutectic solvent for the separation of CO2/CH4
Authors: Mukti Nur Indah Fajar , Ariyanto Teguh , Sediawan Wahyudi Budi , Prasetyo Imam
Published: August 2023

It is necessary to modify CMS to improve the separation of CO2 from biogas and its quality for producing biomethane. CMS is modified by impregnating it with Fe3O4 or choline chloride-based DES.
Molecular dynamics exploration of helium bubble nucleation and growth mechanisms in Fe70Ni11Cr19 austenitic stainless steel
Authors: Zhou X. W.
Published: August 2023

The growth of helium bubbles impacts structural integrity of materials in nuclear applications.
A hollow void catalyst of Co@C(Z-d)@void@CeO2 for enhancing the performance and stability of the Fischer–Tropsch synthesis
Authors: Safari Masoud , Haghtalab Ali , Roghabadi Farzaneh Arabpour
Published: August 2023

To enhance the catalyst performance of Fischer–Tropsch synthesis (FTS), removing the mass-transfer restriction in the catalysis synthesis is essential.
Iron oxide nanoparticles supported on carbon nanotubes: an efficient catalyst for water–gas shift reaction
Authors: Bychko I. B. , Kosmambetova G. R. , Kalishyn Ye. Yu. , Khavrus V. O. , Gritsenko V. I. , Strizhak P. E.
Published: August 2023

High catalytic performance and stability of 3%FeOx/CNT catalyst prepared by colloid deposition of FeOx on CNT in the high-temperature WGSR.
Organocatalyst-mediated, pot-economical total synthesis of latanoprost
Authors: Kawauchi Genki , Suga Yurina , Toda Shunsuke , Hayashi Yujiro
Published: August 2023

The six-pots synthesis of latanoprost has been accomplished with excellent diastereo- and enantioselectivities through an organocatalyst-mediated Michael reaction, a substrate-controlled intramolecular Mukaiyama aldol reaction as key steps.
Engineering hydrophobic–aerophilic interfaces to boost N2 diffusion and reduction through functionalization of fluorine in second coordination spheres
Authors: Bhardwaj Sakshi , Das Sabuj Kanti , Biswas Ashmita , Kapse Samadhan , Thapa Ranjit , Dey Ramendra Sundar
Published: August 2023

We engineered a catalyst via functionalization of fluorine in copper phthalocyanine grafted with graphene that forms a three-phase interface. This concept helps to suppress the parasitic HER process significantly with a high F.E. of NRR (49.3%).
Synergistic tailoring of doping and vacancies in tungsten carbide for efficient hydrogen evolution
Authors: Yang Chenfan , Mao Guoling , Zhu Chuangen , Ding Ning , Pu Bowen , Zhong Lei , Wu Bo
Published: August 2023

A synergy strategy of dopants and vacancies for WC is proposed for promoting hydrogen evolution by introducing Zn. The obtained VC-Zn-WC catalyst features extremely low overpotential and excellent stability in both acidic and alkaline solutions.
Energy-dense anode-free rechargeable lithium metal batteries based on thick cathodes and pulse charging strategies
Authors: Yu Huaqing , Liu Xu , Ma Hua , Zhao Qing
Published: August 2023

In combination with a thick cathode and pulse charging strategies, anode-free lithium metal batteries demonstrated reduced polarization at 5 mA cm−2 and a capacity retention of 79.4% after 50 cycles.
Controlling the transport of the mixture involving active and passive rods in confined channel
Authors: Wang Zhengjia , Hao Junhua
Published: August 2023

The transport of the binary mixture of self-propelled rods (SPRs) and passive rods in the asymmetric conjugate periodic channel is studied by dissipative particle dynamics (DPD) simulations.
Ethylene glycol energetically disfavours oligomerization of pseudoisocyanine dyestuffs at crowded concentrations
Authors: Rajput Satyendra , Pollak Roland , Huber Klaus , Ebbinghaus Simon , Nayar Divya
Published: August 2023

The oligomerization of PIC dyes is unfavourable in crowded ethylene glycol solution relative to water due to unfavourable dye–crowder interaction energy.
A Hofmeister effect induced hydrogel electrolyte–electrode interfacial adhesion enhancement strategy for energy-efficient and mechanically robust redoxcapacitors
Authors: Du Yuehui , Mo Funian , Qin Chengbing , Ho Derek , Hu Haibo
Published: August 2023

Relying on Hofmeister effect, the interface adhesion of the hydrogel electrolyte on both the anode and cathode is tremendously enhanced, thus intensified energy efficiency and mechanical toughness of the fabricated flexible Zn-ion redoxcapacitor.
Suppressing carbon corrosion via mechanically mixing transition metal phosphide clusters: a comparative in situ study in alkaline media
Authors: Wu Xiaoyu , Zhao Kai , Yan Xiaoyu , Cao Xiaojuan , Ke Le , Zhao Yang , Li Lingjiao , Jiang Xiaoyi , Yan Ning
Published: August 2023

Using differential electrochemical mass spectrometry (DEMS), carbon oxidation monitoring in alkaline media with sensitive detection of CO2 is enabled and a simple strategy to suppress carbon corrosion is offered.
Influence of heavy magnesium codoping on emission decay in Ce-doped multicomponent garnet scintillators
Authors: Nargelas Saulius , Solovjovas Arnoldas , Talochka Yauheni , Podlipskas Žydrūnas , Kucera Miroslav , Lucenicova Zuzana , Tamulaitis Gintautas
Published: August 2023

Heavy Mg-codoping substantially increases the emission decay rate of Ce-doped garnet-type scintillators by introducing Mg–Ce centers with a lower barrier for thermal quenching and a channel for temperature-independent nonradiative recombination.
G-protein-coupled receptor MAS deletion produces a preeclampsia-like phenotype in FVB/N mice
Authors: Vieira Pimentel Renata Lúcia , Braga Janaína Félix , Velloso Elizabeth Portugal Pimenta , Lautner Roberto Queiroga , de Oliveira Marilene Luzia , Todiras Mihail , Alenina Natalia , Bader Michael , de Sousa Felipe Gaia , Beier Suzane Lilian , Santos RAS
Published: August 2023

Background: An unbalance in the renin-angiotensin (Ang) system (RAS) between the Ang II/AT1 and Ang-(1-7)/Mas axis appears to be involved in preeclampsia (PE), in which a reduction in Ang-(1-7) was observed. Here, we tested whether the reduction in the activity of the Ang-(1-7)/Mas axis could be a contributing factor for the development of PE, using Mas-deficient (Mas−/−) mice. Methods and results: Cardiovascular parameters were evaluated by telemetry before, during pregnancy and 4 days postpartum in 20-week-old Mas−/− and wild-type (WT) female mice. Mas−/− mice presented reduced arterial blood pressure (BP) at baseline (91.3 ± 0.8 in Mas−/− vs. 94.0 ± 0.9 mmHg in WT, Diastolic, P<0.05). However, after the 13th day of gestation, BP in Mas−/− mice started to increase, time-dependently, and at day 19 of pregnancy, these animals presented a higher BP in comparison with WT group (90.5 ± 0.7 in Mas−/− vs. 80.3 ± 3.5 mmHg in WT, Diastolic D19, P<0.0001). Moreover, pregnant Mas−/− mice presented fetal growth restriction, increase in urinary protein excretion as compared with nonpregnant Mas−/−, oliguria, increase in cytokines, endothelial dysfunction and reduced ACE, AT1R, ACE2, ET-1A, and eNOS placental mRNA, similar to some of the clinical manifestations found in the development of PE. Conclusions: These results show that Mas-deletion produces a PE-like state in FVB/N mice.
Flow of gas detected from beyond the filaments to protostellar scales in Barnard 5
Authors: Valdivia-Mena M. T. , Pineda J. E. , Segura-Cox D. M. , Caselli P. , Schmiedeke A. , Choudhury S. , Offner S. S. R. , Neri R. , Goodman A. , Fuller G. A.
Published: August 2023

Context. The infall of gas from outside natal cores has proven to feed protostars after the main accretion phase (Class 0). This changes our view of star formation to a picture that includes asymmetric accretion (streamers), and a larger role of the environment. However, the connection between streamers and the filaments that prevail in star-forming regions is unknown.

Aims. We investigate the flow of material toward the filaments within Barnard 5 (B5) and the infall from the envelope to the protostellar disk of the embedded protostar B5-IRS1. Our goal is to follow the flow of material from the larger, dense core scale, to the protostellar disk scale.

Methods. We present new HC3N line data from the NOEMA and 30 m telescopes covering the coherence zone of B5, together with ALMA H2CO and C18O maps toward the protostellar envelope. We fit multiple Gaussian components to the lines so as to decompose their individual physical components. We investigated the HC3N velocity gradients to determine the direction of chemically fresh gas flow. At envelope scales, we used a clustering algorithm to disentangle the different kinematic components within H2CO emission.

Results. At dense core scales, HC3N traces the infall from the B5 region toward the filaments. HC3N velocity gradients are consistent with accretion toward the filament spines plus flow along them. We found a ~2800 au streamer in H2CO emission, which is blueshifted with respect to the protostar and deposits gas at outer disk scales. The strongest velocity gradients at large scales curve toward the position of the streamer at small scales, suggesting a connection between both flows.

Conclusions. Our analysis suggests that the gas can flow from the dense core to the protostar. This implies that the mass available for a protostar is not limited to its envelope, and it can receive chemically unprocessed gas after the main accretion phase.
Paradigmes et scénarios de transition des systèmes alimentaires pour la neutralité carbone
Authors: Duru Michel , Therond Olivier
Published: August 2023

L’agriculture et l’alimentation doivent relever de nombreux défis environnementaux et sanitaires. Le développement de scénarios prospectifs est une approche pour concevoir et évaluer des stratégies y répondant. Nous comparons ici sept scénarios ayant en commun l’objectif de neutralité carbone en 2050. Ces scénarios diffèrent cependant pour l’utilisation des terres, les pratiques agricoles et les régimes alimentaires. Nous montrons qu’ils mobilisent différemment les services écosystémiques, l’économie circulaire, la sobriété et les technologies. Les enjeux de santé humaine et de biodiversité ne sont pas toujours considérés explicitement. Notre analyse permet de distinguer les scénarios basés sur des changements sociétaux, tels que la baisse de la consommation de produits animaux, de ceux misant plutôt sur des paris technologiques.
The Effect of Listed Companies’ Social Responsibility on the Market Reaction to Violations
Authors: Ying Qianwei , Yao Pengfei , Liu Jinsong , ul Ain Qurat
Published: August 2023

This study investigates whether the listed company’s social responsibility will impact investors and regulators after corporate frauds. Does the corporate social responsibility (CSR) performance bring about the “compensation” effect or the “reputation collapse” effect? Using the cumulative abnormal return to characterize the market reaction, our results based on the Chinese listed firms that have committed violations throughout 2010-2020 show that the announcement of violation enforcement will produce significantly negative market reaction, and the more serious the type of violation enforcement, the greater the negative market reaction. Further, we find that the corporate social responsibility (CSR) performance will not directly affect the market reaction of the announcement of punishment for violations, but it will increase the severity of the company’s punishment for violations, thus indirectly bringing more negative market reaction. Overall, our findings suggest that the listed company’s social responsibility (CSR) performance before violation cannot play a “compensation” effect to offset the negative impact caused by its violation, it may bring more serious administrative punishment to the company due to the “reputation avalanche” effect inversely, thus leading to more negative economic consequences, and is not conducive to the sustainable development of the company.
Life Cycle Sustainability Assessment of ENDURUNS Project: Autonomous Marine Vehicles
Authors: Sánchez Pedro José Bernalte , Márquez Fausto Pedro García , Papaelias Mayorkinos
Published: August 2023

The autonomous marine vehicles development has a grow demand by offshore industries. The multiple facilities implemented in this environment requires the evolution of this devices for several task as survey, maintenance or monitorization. The technology complexity of this devices requires great efforts in economics and resources to innovate. In this line, the ENDURUNS project purposes to design an autonomous marine system capable to performance a long endurance during the missions due to the employment of renewable energies for its vehicles. The evaluation of the project life cycle represents an important task for the project management. In this article, it is exposed the three different project life cycle aspects. The aspect analyzed are the social life cycle assessment, the life cycle cost and the life cycle assessment. It has been applied the corresponding standards in the European context to develop each methodology and to obtain the results. Thus, this work brings an approach about the environment, economic and social impact of this project. The results presented from this study can be considered for practitioners for future research in marine mobility field, due to the sustainability characteristics of the project analyzed.
How to Achieve Sustainable Development in the Industry? Influence of Listed Firms in Environmental Strategy
Authors: Zhang Zheng , Zhu Hao , Zhang Fei , Chen Yifeng
Published: August 2023

The relevant literature on environmental strategy has carried out extensive research on the internal and external factors that affect the sustainable development of enterprises, but some important horizontal factors, such as the influence from peers, are ignored. Based on benchmarking theory and expectation theory, this paper makes an empirical analysis on the panel data of Listed Companies in 24 industries in China from 2001 to 2019. The results show that the number of Listed Companies in the industry has a positive impact on the passive and active environmental strategies of the whole industry. The outstanding performance of peers promotes the whole industry to actively implement the active environmental strategy and reduce the passive environmental strategy. At the same time, the longer the listing time of the listed companies, the more able the companies to strengthen the impact of the number of listed companies on the implementation of active or passive environmental strategy in the whole industry, and the smaller the relative scale, the more able the companies to strengthen the impact of performance on the implementation of active environmental strategy in the whole industry.
A Comparative Study of Factors Influencing the Survival Time of Invention Patents in Chinese Universities
Authors: Yan Jinjiang , Ji Li , Xue Jinghang , Liu Jiting
Published: August 2023

Based on the fact that the granted amount of patents in Chinese universities have increased significantly, we took the invention patents applied by universities in Sichuan Province from 2001 to 2015 as a sample and adopted Kaplan-Meier survival analysis and Cox proportional hazards model. We found significant differences in the survival time of invention patents in the three types of universities Based on this, we conducted an empirical study and comparative analysis on the factors influencing the survival time of the three types of universities. It was found that the number of citations and the number of patent families have different effects on the survival time of invention patents in the three types of universities; the examination time and the number of inventors have negative effects on the survival time of invention patents in the three types of universities; the number of claims, the number of IPCs and the number of forward citations have positive effects on the survival time of invention patents in the three types of universities. This paper can provide some reference for universities to cultivate high-value patents.
Estimation of Right-censored SETAR-type Nonlinear Time-series Model
Authors: Ahmed Syed Ejaz , Aydın Dursun , Yılmaz Ersin
Published: August 2023

This paper focuses on estimating the Self-Exciting Threshold Autoregressive (SETAR) type time-series model under right-censored data. As is known, the SETAR model is used when the underlying function of the relation-ship between the time-series itself (Yt), and itspdelays $$({Y_{t - j}})_{j = 1}^p$$ violates the lin-earity assumption and this function is formed by multiple behaviors that called regime. This paper addresses the right-censored dependent time-series problem which has a serious negative effect on the estimation performance. Right-censored time series cause biased coefficient estimates and unqualified predictions. The main contribution of this paper is solving the censorship problem for the SETAR by three different techniques that are kNN imputation which represents the imputation techniques, Kaplan-Meier weights that is applied based on the weighted least squares, synthetic data transformation which adds the effect of censorship to the modeling process by manipulating dataset. Then, these solutions are combined by the SETAR-type model estimation process. To observe the behavior of the nonlinear estimators in practice, a simulation study and a real data example are carried out. The Covid-19 dataset collected in China is used as real data. Results prove that although the three estimators show satisfying performance, the quality of the estimate SETAR model based on the kNN imputation technique dominates the other two estimators.
Exploring the Challenges and Opportunities for Integrating Sports and Medicine in China
Authors: Chen Yuanli , Chen Sam S. , Frederick Ginny M. , Zhang James J. , Yuan Chaoqun , Chen Jun , Xie Yuting
Published: August 2023

Guided by the Health China 2030 Action, this research aims to investigate the current state of sports and medicine integration in China. The study utilizes a combination of literature review and questionnaire survey methods to identify key challenges facing sports and medicine integration in China. To address these challenges, the study examines the sports medicine integration in the United States, and the implementation of the “Exercise is Medicine” course in the University of Georgia’s Kinesiology curriculum. Through this examination, the study aims to provide a comprehensive understanding of the challenges and opportunities for integrating sports and medicine in China, with the understanding that sports can serve as a valuable form of medicine.
More Is Not Better: An Inverted U-Shaped Relationship Between Advertising Creative Strategies and Consumer Review Valence
Authors: Yang Jialu , Niu Yongge , Luo Yudian
Published: August 2023

Since many companies choose to publish digital video advertisements with creative features on the Internet to promote new products. This study aims to examine the impact of the number of creative strategies (NCS) in adverting messages on consumer review valence and explore whether this impact varies by new product type (incrementally new products vs. really new products). Based on the method of content analysis and empirical analysis on 564 digital video advertisements published by six world-renowned electronic product brands from 2018 to 2019 on YouTube, this study draws three main conclusions: (1) whether new products belong to incremental new products (INPs) or really new products (RNPs), there is an inverted U-shaped relationship between NCS and consumer review valence; (2) the inflection point of NCS (INP) is greater than the inflection point of NCS (RNP) and (3) the maximum value of consumer response for INP is greater than that for RNP. This study not only provides a new theoretical perspective for NCS, but also contributes valuable guiding principles for designing the effective advertising creative strategies for new products.
Study on the Spatial and Temporal Characteristics of Weibo Users’ Online Shopping Festival Concerns: A Case Study of “Double 11 Shopping Carnival”
Authors: Teng Geer , Liu Jia , Wen Lijun , He Yue , Jiang Xiaoyi
Published: August 2023

Online shopping festivals have become powerful ways for major e-commerce platforms to conduct promotions. To explore the rule and hidden information of the change of users’ attention to online shopping festivals, it can provide scientific and effective marketing reference, and promote the sustainable development of online shopping festivals. This paper takes the “Double 11” online shopping festival as the research object. Based on the LDA+LSA+NMF integrated theme extraction model, kernel density analysis, grouping analysis and cluster outlier analysis in ArcGIS technology are adopted. We explore the evolution pattern of microblog users’ attention to the online shopping festival in the spatial and temporal dimensions. In the temporal dimension, the number of releases showed a stepwise increase, and concerns showed annual topic evolution and daily three-stage differential evolution. In the spatial dimension, the release volume showed a gradient decreasing trend from coastal to inland and from east to west, and concerns showed certain regional differences. The main contribution of this paper is to propose a funnel theme extraction model with multi-model integration, and provide a new perspective for the spatial research of online shopping festival based on ArcGIS spatial analysis technology.
An Analysis on the Influencing Factors of Learning Motivation Based in the Teaching Blending Online and Offline: The Mediating Role of Self-efficacy and Task value
Authors: Wei Lin , Chen Xiaoxue , Zheng Mingyue , He Li , Zhang Xiaotong , Gao Yuan
Published: August 2023

Discuss the influence of the teaching blending online and offline on the learning motivation of linear algebra and other mathematical courses. University students of grade 2021 were chosen as the research object by using the stratified sampling and random sampling methods. The Adapted Motivation Strategy of Learning Questionnaire was used. The structural equation model and the mediation effect model were applying to analyze the influencing effect of learning motivation. External Drive positive effects Learning beliefs by influencing the mediating role of Self Efficacy. Internal Drive positive effects Learning beliefs by influencing the mediating role of Task Value. The organic combination of traditional classroom blackboard deduction and online teaching, the improvement of internal motivation and external motivation and the improvement of self-efficacy and task value are conducive to the optimization of the teaching blending online and offline of mathematics and physics courses.