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Visualizing traumatic brain injury:ocular clues for diagnosis and assessment

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Neural Regeneration Research 2025年第5期20卷 1399-1400页

作者： Morteza Abyadeh Vivek Gupta Yuyi You Joao A.Paulo Mehdi Mirzaei ProGene Technologies Pty Ltd SydneyNSWAustralia Department of Clinical Medicine Faculty of MedicineHealth and Human SciencesMacquarie Medical SchoolMacquarie UniversityMacquarie ParkNorth RydeSydneyNSWAustralia Department of Cell Biology Harvard Medical SchoolBostonMAUSA

Traumatic brain injury (TBI) is defined as damage to the brain resulting from an external sudden physical force or shock to the *** is considered a silent public health epidemic causing significant death and disability *** were 64,000 TBI related deaths reported in the USA in 2020,with about US$76 billion in direct and indirect medical costs annually.

关键词： diagnosis ocular injury

Free vibration and transient response of double curved beams connected by intermediate straight beams

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 37-62页

作者： R.A.JAFARI-TALOOKOLAEI H.GHANDVAR E.JUMAEV S.KHATIR T.CUONG-LE school of Mechanical Engineering Babol Noshirvani University of Technology Department of Mechanical Engineering Faculty of Engineering New Uzbekistan University University of business and Science Center for Engineering Application and Technology Solutions Ho Chi Minh City Open University

This paper investigates the free vibration and transient response of interconnected structures including double curved beams and intermediate straight beams,which are all constructed from functionally graded porous(FGP) materials. The strain potential and kinetic energies of each beam along with the work done by the external force are calculated. Additionally, a higher-order beam element is introduced to derive stiffness and mass matrices, along with the force vector. The curved and straight beams are discretized, and their assembled stiffness, mass matrices, and force vectors, are *** conditions at the joints are used to derive the total matrices of the entire structure. Subsequently, the natural frequencies and transient response of the system are determined. The accuracy of the mathematical model and the self-developed computer program is validated through the comparison of the obtained results with those of the existing literature and commercial software ANSYS, demonstrating excellent ***, a comprehensive study is conducted to investigate the effects of various parameters on the free vibration and transient response of the considered structure.

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Cobalt porphyrin immobilized on the TiO_(2) nanotube electrode for CO2 electroreduction in aqueous solution

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Journal of Energy Chemistry 2021年第4期30卷 219-227页

作者： Shengshen Gu Aleksei N.Marianov Yuxiang Zhu Yijiao Jiang school of Engineering Macquarie UniversitySydneyNSW 2109Australia

Herein we report CO_(2) electrochemical reduction reaction(CO_(2) ERR)on the cobalt tetraphenylporphyrin(Co TPP)modified TiO_(2) nanotube(TNT)*** was found the axial coordination of drop-casting solvent to Co TPP and the porphyrin structure are the major factors that have significant effects on the catalytic performance of the *** confirmed by spectrophotometric titration,pyridine has a stronger coordination bond to Co TPP than DMF and THF thus leading to the highest efficiency among the dropcasting solvents tested in the *** on the spectrophotometric analysis,possible coordination mechanism between drop-casting solvents and Co TPP is put *** the other hand,introduction of-COOMe substituents in phenyl rings of Co TPP weakens the coordination bond between pyridine and Co TPP as clearly evidenced by deuterium NMR spectra,resulting in a detrimental effect on CO_(2) ***,the manipulation of the coordination environment around the metal center of immobilized catalyst is crucial in designing an efficient electrocatalytic system.

关键词： CO_(2)electroreduction Co porphyrins Immobilization Drop-casting solvent Axial coordination

Effect of TiO_(2) support on immobilization of cobalt porphyrin for electrochemical CO_(2) reduction

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Journal of Materials Science & Technology 2021年第21期80卷 20-27页

作者： Shengshen Gu Aleksei N.Marianov Haimei Xu Yijiao Jiang school of Engineering Macquarie UniversitySydneyNSW2109Australia

Electrochemical reduction of CO_(2) is a promising strategy to manage the global carbon balance by transforming CO_(2) into chemicals. The efficiency of CO_(2) electroreduction is largely dependent on the design of hybrid electrode where both support and catalyst govern the performance of the electrolyzer. In this work,TiO_(2) calcined at different temperatures, was used as a support for immobilization of cobalt tetraphenyl porphyrin(CoTPP) and its effect on CO_(2) reduction was studied. It is demonstrated that the crystalline phase of TiO_(2) and doping of TiO_(2) apparently affecting CO_(2) electroreduction. It is found that anatase phase exhibits higher activity and selectivity compared to rutile due to the enhanced conductivity which in turn enables faster electron transfer between the support and CoTPP. As for dopants, the carbon doping in anatase TiO_(2) is proven to further enhance its conductivity, consequently resulting in the enhanced performance. This study implies that the rational design of supports is important for the performance of the hybrid electrode towards electrochemical CO_(2) reduction.

关键词： CO_(2)electroreduction Cobalt porphyrin Immobilization TiO_(2)support Carbon doping

Lower and upper pricing of financial assets

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Probability, Uncertainty and Quantitative Risk 2022年第1期7卷 45-66页

作者： Robert Elliott Dilip B.Madan Tak Kuen Siu school of business University of South AustraliaAdelaideSA 5001Australia Department of Finance Robert H.Smith School of BusinessUniversity of MarylandCollege ParkMD 20742USA Department of Actuarial Studies and business Analytics Macquarie Business SchoolMacquarie UniversitySydneyNSW 2109Australia

Modeling of uncertainty by probability errs by ignoring the uncertainty in *** financial valuation recognizes the uncertainty of probability,the best the market may offer is a two price framework of a lower and upper *** martingale theory of asset prices is then replaced by the theory of nonlinear *** dealing with pure jump compensators describing probability,the uncertainty in probability is captured by introducing parametric measure *** two price framework then alters asset pricing theory by requiring two required return equations,one each for the lower upper *** lower and upper valuations by daily lows and highs,the paper delivers the first empirical study of nonlinear martingales via the modeling and simultaneous estimation of the two required return equations.

关键词： Bilateral gamma model Acceptable risks Probability distortions Hidden Markov model Filtered markets

Quasi-Z-Source Based Bidirectional DC-DC Converter and Its Control Strategy

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Chinese Journal of Electrical Engineering 2019年第1期5卷 1-9页

作者： Yuba Raj Kafle Saad Ul Hasan Graham E.Town school of Engineering Macquarie UniversityNSW 2109Australia

This paper presents a quasi-Z-source based isolated bidirectional DC-DC converter(qZIBDC)for renewable energy *** converter utilizes a dual active bridge circuit with a quasi-Z-source network on both sides,so the converter works as buck/boost converter from either *** has a wider input/output voltage operating range,soft-switching capabilities without additional devices,and higher boost capability than a traditional dual active bridge *** from that,shoot-through states are incorporated in its operating cycle to boost the input voltage resulting in high reliability of the proposed *** to the symmetrical structure of the circuit,there is no defined high voltage or low voltage side as in traditional isolated bidirectional DC-DC *** operating principle and control strategy of the proposed converter are *** and experimental results are provided to verify the effectiveness of the proposed converter topology and its control strategy.

关键词： Bidirectional DC-DC converter dual active bridge impedance source quasi-Z-source DC-DC converter

Measuring the Effect of COVID-19 Pandemic on Mortality:Review and Prospect--China,2021

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China CDC weekly 2022年第23期4卷 499-503页

作者： Jinlong Lin Guogui Huang Yue Wei Lijun Pei Institute of Population Research China Center on Population Health and DevelopmentPeking UniversityBeijingChina macquarie business school Macquarie UniversitySydneyAustralia

Current progress in measuring the effect of the pandemic on mortality is *** studies have comprehensively and systematically elucidated the mechanism through which the pandemic affects mortality and what indicators are valid to capture such an *** paper presents a comprehensive analysis regarding the multifaceted effects of coronavirus disease 2019(COVID-19)on mortality and its measurements[i.e.,confirmed deaths per million people(CDPMP),case fatality rate(CFR),infection fatality risk(IFR),excess mortality P-score(EMPS),and life expectancy(LE)].It was revealed that both data collection efforts and measurements on mortality due to COVID-19 were far from perfect and discussed the importance of accurate,prompt,and accessible data by any government over the course of fighting against the COVID-19 *** is believed that the biggest challenge in measuring the effect of the COVID-19 pandemic on mortality lies not in the construction of indicators at the academic level,but in the collection of data at the practical ***,it is suggested to take measures to better monitor the development of the pandemic and mitigate the increasing burdens borne by the public health systems by improving the tracking system of mortality,standardizing the diagnosis of COVID-19’s deaths,and disclosing mortality data.

关键词： diagnosis prompt fighting

Health anxiety and work loss in patients diagnosed with serrated polyposis syndrome:A cross sectional study

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World Journal of Clinical Oncology 2025年第2期16卷 52-62页

作者： Angus Thompson Natalie R Dierick Louise Heiniger Stuart N Kostalas school of Clinical Medicine University of New South WalesPort Macquarie 2444New South WalesAustralia Department of Gastroenterology Port Macquarie GastroenterologyPort Macquarie 2444New South WalesAustralia

BACKGROUND Serrated polyposis syndrome(SPS)is a polyposis condition with neoplastic potential,but its psychological impact is not well *** To assess health anxiety prevalence in a regional Australian cohort of SPS patients and explore factors influencing it,including workforce impacts of regular *** This cross-sectional study screened patients aged 18-65 undergoing colonoscopy in a regional gastroenterology practice between January 2015 and June *** SPS patients were invited to *** included the Short Health Anxiety Inventory,employment status,and previous demographic and medical *** Health anxiety was found in 21.57%of SPS patients,with anxious patients being significantly more concerned about surveillance(OR=7.70).Patients lost an average of 11.04 work hours per *** Health anxiety in SPS patients aligns with rates in other gastroenterology *** it may improve management,though further research is needed to better understand prevalence and care improvements.

关键词： Serrated polyposis syndrome Health anxiety Colorectal cancer Surveillance

Using a fluvial archive to place extreme flood sediment(dis)connectivity dynamics in context of a longer-term record

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International Journal of Sediment Research 2022年第4期37卷 447-456页

作者： Kirstie Fryirs Chris Thompson Damian Gore school of Natural Sciences Macquarie University Seqwater

The aim of this study was to establish the source and provenance of sediments deposited in a large floodplain sink during extreme floods in the Lockyer Creek catchment, Australia, in 2011 and 2013. We place the sediment source patterns in context of the longer-term record to determine whether coarsegrained sediment sources(i.e., very fine sand to very coarse sand) and the spatio-temporal pattern of(dis)connectivity have changed over time. We do this by matching the geochemical properties and age structure of a sediment profile located in a downstream floodplain sink to the elemental composition of source sediments. One hundred and fifty-seven sediment samples from 20 sites across the catchment are analysed using X-ray fluorescence(XRF) spectrometry to compare the elemental ratio composition of the downstream floodplain sink to its source materials. We use Optically Stimulated Luminescence(OSL)dating to determine the age structure of the sediments in the floodplain sink. The northern tributaries and parts of the Lockyer River trunk stream are the primary sources of coarse sediment. These areas are connected(coupled) to the lower trunk stream and floodplain sediment sink. Southern tributaries are largely disconnected(decoupled) and supply little sediment to the floodplain sediment sink. This pattern of sediment source contribution has remained similar over the last 6.8 ka at least. Sediment sources as observed in the 2011 flood have predominated over the mid-late Holocene whilst those in the 2013 flood are rare.

关键词： Sediment provenance Geomorphology Sediment source Sediment sink Lockyer Valley