检索结果-南通市图书馆

Development of micro/nanostructured‒based biomaterials with biomedical applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

BIOCELL 2023年第8期47卷 1743-1755页

作者： AFAF alharthi Department of Clinical Laboratory Sciences College of Applied Medical SciencesTaif UniversityTaif21944Saudi Arabia

Natural biomaterials are now frequently used to build biocarrier systems,which can carry medications and biomolecules to a target region and achieve a desired therapeutic *** and polymers are of great importance in the synthesis of *** recent studies have tended to use these materials because they are easily obtained from natural sources such as fungi,algae,bacteria,and medicinal *** are also biodegradable,compatible with neighborhoods,and *** biomaterials and polymers are chemically changed when they are linked by cross linking agents with other polymers to create scaffolds,matrices,composites,and interpenetrating polymer networks employing microtechnology and *** review highlights how microengineered and nanoengineered biomaterials are utilized to produce efficient drug-delivery systems and biomedical and biological therapies and how innovative sources of biomaterials have been identified.

关键词： Micro/Nanoparticles Biomaterials Green synthesis Microorganisms Algae Medicinal plants

Factors affecting farmers'choice to adopt risk management strategies:The application of multivariate and multinomial probit models

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2024年第12期23卷 4250-4262页

作者： Jamal Shah Majed alharthi School of Business Department of EconomicsUniversity of DundeeDundee DD14HNUnited Kingdom Finance Department College of BusinessKing Abdulaziz UniversityRabigh 21911Saudi Arabia

This study investigates the factors that impact farmers'adoption of risk management strategies(RMS)in Pakistan during times of *** study examines farmers'adoption of RMS using both multinomial probit(MNP)and multivariate probit(MVP).Data were collected from 382 farmers sampled from four districts in KhyberPakhtunkhwa(KP)province of Pakistan via a multistage sampling *** study utilizes the MNP model,considering the assumption of Independence of Irrelevant Alternatives(IIA)and incorporating correlated error *** objective is to understand farmers'behavior in risky situations and determine if there is *** are compared with the MVP model to assess robustness and gain deeper understanding of farmers'decisionmaking *** research findings reveal that our results are robust,and farmers behave homogeneously in various RMS *** adopt RMS individually or in combination to mitigate the adverse effects of natural calamities on their *** risk-averse farmers,who perceive weather-related risks as a threat,access credits and information,and have farms close to a river are more likely to adopt RMS,irrespective of the format of the strategies ***,the predicted probabilities and correlation of the RMS and RM categories have strengthened our model *** findings provide insights into the behavior of farmers in adopting RMS which are helpful for policymakers and stakeholders in developing strategies to mitigate the impacts of natural calamities on farmers.

关键词： multinomial probit model multivariate probit model risk management strategies risk-attitude risk perception

Biomarkers of Metabolic(Dysfunction)-associated Fatty Liver Disease:An Update

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Clinical and Translational Hepatology 2022年第1期10卷 134-139页

作者： Jawaher alharthi Mohammed Eslam Storr Liver Centre Westmead Institute for Medical ResearchWestmead Hospital and University of SydneySydneyNSWAustralia Department of Biotechnology Faculty of ScienceTaif UniversityTaifSaudi Arabi

The prevalence of metabolic(dysfunction)-associated fatty liver disease(MAFLD)is rapidly increasing and affects up to two billion individuals globally,and this has also resulted in increased risks for cirrhosis,hepatocellular carcinoma,and liver *** addition,it has also been linked to extrahepatic consequences,such as cardiovascular disease,diabetes,and various types of ***,only a small proportion of patients with MAFLD develop these ***,the identification of high-risk patients is *** fibrosis is the major determinant in developing these ***,liver biopsy is still considered the gold standard for the assessment of patients with *** of its invasive nature,among many other limitations,the search for noninvasive biomarkers for MAFLD remains an area of intensive *** this review,we provide an update on the current and future biomarkers of MAFLD,including a discussion of the associated genetics,epigenetics,microbiota,and *** also touch on the next wave of multiomic-based biomarkers.

关键词： Biomarkers Metabolic(dysfunction)-associated fatty liver disease Scores

Oil revenue and production cost disconnect and its impact on the environment:Economic globalization in Asia-Pacific economic cooperation countries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geoscience Frontiers 2024年第3期15卷 14-30页

作者： Zhou Li Sager alharthi Business School The University of New South WalesSydneyAustralia Business Administration Department College of Administrative and Financial SciencesSaudi Electronic UniversityJeddahKingdom of Saudi Arabia

The global economy relies heavily on oil production,but it is not without *** the period of economic globalization,the revenue and costs associated with oil production have become disjointed,which has had a detrimental effect on the *** a result,environmental protection has been compromised,environmental regulations have been weakened,natural resources have been exploited,and climate change has been *** study examines the impact of revenue minus the production cost of oil,energy use,and shadow economy on environmental degradation in APEC countries from 1991 to 2020,using the economic globalization index as a moderating *** result explains that revenue minus the oil production cost and the shadow economy are negatively associated with environmental *** use and economic globalization are positively associated with environmental degradation in APEC *** minus the production cost of oil and shadow economy improve the *** use and economic globalization degrade the environment in APEC *** are encouraged to advance technologies and upgrade infrastructure to reduce greenhouse gas emissions;also,promoting energy-efficient practices in other sectors,like transportation and manufacturing,could contribute to a healthier environment.

关键词： Greenhouse gas emissions Revenue minus production cost of oil Economic globalization Shadow economy APEC countries

Climatic niche shift of an invasive shrub (Ulex europaeus): a global scale comparison in native and introduced regions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2020年第1期13卷 42-50页

作者： Mathias Christina fawziah Limbada Anne Atlan UMR ISPA INRA71 Avenue Edouard Bourlaux33140 Villenave-d’ornonFrance UMR ECOBIO CNRS/UniversitéRennes 1Avenue du Général LeclercCampus de Beaulieu35042 RennesFrance UPR AIDA CIRAD40 Chemin Grand Canal97490 Sainte-ClotildeLa RéunionFrance UMR ESO CNRS/UniversitéRennes 2Place du Recteur Henri Le Moal35043 RennesFrance

Aims Invasive species,which recently expanded,may help understand how climatic niche can shift at the time scale of the current global ***,we address the climatic niche shift of an invasive shrub(common gorse,Ulex europaeus)at the world and regional scales to assess how it could contribute to increasing *** Based on a 28187 occurrences database,we used a combination of 9 species distribution models(SDM)to assess regional climatic niche from both the native range(Western Europe)and the introduced range in different parts of the world(North-West America,South America,North Europe,Australia and New Zealand).Important Findings Despite being restricted to annual mean temperature between 4℃ and 22℃,as well as annual precipitation higher than 300 mm/year,the range of bioclimatic conditions suitable for gorse was very *** on a native versus introduced SDM comparison,we highlighted a niche expansion in North-West America,South America and to a lesser degree in Australia,while a niche displacement was assessed in North *** niche changes induced an increase in potential occupied areas by gorse by 49,111,202 and 283%in Australia,North Europe,North-West America and South America,*** the contrary,we found no evidence of niche change in New Zealand,which presents similar climatic condition to the native environment(Western Europe).This study highlights how niche expansion and displacement of gorse might increase invasibility at regional *** change in gorse niche toward new climatic conditions may result from adaptive plasticity or genetic evolution and may explain why it has such a high level of *** into account the possibility of a niche shift is crucial to improve invasive plants management and control.

关键词： plant invasion invasibility niche shift species distribution models ecological niche

A new approach for modelling the damped Helmholtz oscillator:applications to plasma physics and electronic circuits

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2021年第3期73卷 119-130页

作者： S A El-Tantawy Alvaro H Salas M R alharthi Department of Physics Faculty of SciencePort Said UniversityPort Said 42521Egypt Research Center for Physics(RCP) Department of PhysicsFaculty of Science and ArtsAl-MikhwahAl-Baha UniversitySaudi Arabia Department of Mathematics Universidad National de ColombiaUniversidad National de Colombia-Nubia Campus Derpartment of Mathematics and Statistics FIZMAKO Research GroupColombia Department of Mathematics and Statistics College of ScienceTaif UniversityPO Box 11099Taif 21944Saudi Arabia

In this paper,a new approach is devoted to find novel analytical and approximate solutions to the damped quadratic nonlinear Helmholtz equation(HE)in terms of the Weiersrtrass elliptic *** exact solution for undamped HE(integrable case)and approximate/semi-analytical solution to the damped HE(non-integrable case)are given for any arbitrary initial *** a special case,the necessary and sufficient condition for the integrability of the damped HE using an elementary approach is *** general,a new ansatz is suggested to find a semi-analytical solution to the non-integrable case in the form of Weierstrass elliptic *** addition,the relation between the Weierstrass and Jacobian elliptic functions solutions to the integrable case will be derived in ***,we will make a comparison between the semi-analytical solution and the approximate numerical solutions via using Runge-Kutta fourth-order method,finite difference method,and homotopy perturbation method for the first-two ***,the maximum distance errors between the approximate/semi-analytical solution and the approximate numerical solutions will be *** real applications,the obtained solutions will be devoted to describe the characteristics behavior of the oscillations in RLC series circuits and in various plasma models such as electronegative complex plasma model.

关键词： damped and undamped Helmholtz equation Korteweg-de Vries type equation plasma oscillations nonlinear RLC circuits Weierstrass ellliptic function periodical solution

Dynamical Analysis of the Stochastic COVID-19 Model Using Piecewise Differential Equation Technique

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2023年第12期137卷 2427-2464页

作者： Yu-Ming Chu Sobia Sultana Saima Rashid Mohammed Shaaf alharthi Department of Mathematics Huzhou UniversityHuzhou313000China Department of Mathematics Imam Mohammad Ibn Saud Islamic UniversityRiyadh12211Saudi Arabia Department of Mathematics Government College UniversityFaisalabad38000Pakistan Department of Mathematics and Statistics College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

Various data sets showing the prevalence of numerous viral diseases have demonstrated that the transmission is not truly *** examples are the spread of Spanish flu and *** aimof this research is to develop a comprehensive nonlinear stochastic model having six cohorts relying on ordinary differential equations via piecewise fractional differential ***,the strength number of the deterministic case is carried ***,for the stochastic model,we show that there is a critical number RS0 that can predict virus persistence and infection *** of the peculiarity of this notion,an interesting way to ensure the existence and uniqueness of the global positive solution characterized by the stochastic COVID-19 model is established by creating a sequence of appropriate Lyapunov *** ergodic stationary distribution for the stochastic COVID-19 model is *** findings demonstrate a piecewise numerical technique to generate simulation studies for these *** collected outcomes leave no doubt that this conception is a revolutionary doorway that will assist mankind in good perspective nature.

关键词： COVID-19 epidemic model piecewise fractional differential operators piecewise numerical scheme extinction ergodicity and stationary distribution

Macrophages in metabolic associated fatty liver disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2020年第16期26卷 1861-1878页

作者： Jawaher alharthi Olivier Latchoumanin Jacob George Mohammed Eslam Storr Liver Centre Westmead Institute for Medical ResearchWestmead Hospital and University of SydneySydney 2145NSWAustralia

Metabolic associated fatty liver disease(MAFLD),formerly named non-alcoholic fatty liver disease is the most common liver disorder in many *** inflammatory subtype termed steatohepatitis is a driver of disease progression to cirrhosis,hepatocellular carcinoma,liver transplantation,and death,but also to extrahepatic complications including cardiovascular disease,diabetes and chronic kidney *** plasticity of macrophages in response to various environmental cues and the fact that they can orchestrate cross talk between different cellular players during disease development and progression render them an ideal target for drug *** report reviews recent advances in our understanding of macrophage biology during the entire spectrum of MAFLD including steatosis,inflammation,fibrosis,and hepatocellular carcinoma,as well as for the extra-hepatic manifestations of *** discuss the underlying molecular mechanisms of macrophage activation and polarization as well as cross talk with other cell types such as hepatocytes,hepatic stellate cells,and adipose *** conclude with a discussion on the potential translational implications and challenges for macrophage based therapeutics for MAFLD.

关键词： Metabolic associated fatty liver disease Macrophages Inflammation Fibrosis Hepatic stellate cells

Metabolic associated fatty liver disease(MAFLD):a milestone in the history of fatty liver disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2021年第5期10卷 696-698页

作者： Jawaher alharthi Mohammed Eslam Storr Liver Centre Westmead Institute for Medical ResearchWestmead Hospital and University of SydneySydneyAustralia

With the widespread increase in energy intake and physical inactivity,the prevalence of metabolic health is ***,metabolic associated fatty liver disease(MAFLD)[formerly known as non-alcoholic fatty liver disease(NAFLD)]has risen in prevalence and present a significant challenge to global health causing considerable morbidity and mortality,particularly when fibrosis is present(1).

关键词： liver NAFLD MAF