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One-dimensional monotone nonautonomous dynamical systems

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Science China Mathematics 2024年第2期67卷 281-314页

作者： david Cheban Faculty of Mathematics and Computer Science Laboratory of Fundamental and Applied MathematicsMoldova State UniversityChisinau 2009Moldova

This work is devoted to the study of the dynamics of one-dimensional monotone nonautonomous(cocycle) dynamical systems. A description of the structures of their invariant sets, omega limit sets,Bohr/Levitan almost periodic and almost automorphic motions, global attractors, and pinched and minimalsets is given. An application of our general results is given to scalar differential and difference equations.

关键词： one-dimensional dynamics pinched and minimal sets global attractors monotone nonautonomous cocycle almost periodic solutions scalar differential/difference equations

The challenging management of malignant ureteral obstruction:Analysis of a series of 188 cases

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Current Urology 2024年第1期18卷 34-42页

作者： Alberto Artiles Medina Inés Laso García Fernando gonzález Tello Sara Álvarez Rodríguez Manuel Hevia Palacios Marina Mata Alcaraz César Mínguez Ojeda Fernando Arias Funez Victoria Gómez Dos Santos Francisco Javier Burgos Revilla Department of Urology Hospital Universitario Ramón y CajalMadridSpain Department of Radiology Hospital Universitario Ramón y CajalMadridSpain

Background:Malignant ureteral obstruction(MUO)is a common condition that complicates the course of advanced *** aims of this study are to analyze the causes,management,and survival of patients with obstructive nephropathy due to malignant ureteric obstruction and to determine prognostic ***,we studied the complications and outcomes in patients who underwent urinary *** and methods:A retrospective study was conducted on patients with computed tomography-confirmed MUO between January 2016 and November ***,clinical,radiological,laboratory,and management data were *** curves were estimated using the Kaplan-Meier method,and univariate and multivariate Cox proportional hazards models were used to test the association between parameters and ***:A total of 188 patients were *** mean age was 69.01 years(SD,14.95 years),and the majority(54.8%)were *** most common mechanism leading to MUO was compression by a pelvic mass(36.9%),and the 3 most frequent tumors causing MUO were prostate(17.6%),bladder(16.5%),and rectal cancer(11.7%).Forty-seven patients(25%)underwent urinary diversion:23(48.9%)underwent double-J stenting and 21(44.7%)underwent percutaneous *** most common reason for urinary diversion was acute kidney injury(53.3%).Recovery of renal function was observed in 55.8%of the patients after urinary *** most frequently identified complications after urinary diversion were urinary tract infection(24.4%),hematuria(17.0%),and urinary sepsis(14.9%).The median survival after hydronephrosis diagnosis was 6.43 months(interquartile range,1.91-14.81 months).In patients who underwent urinary decompression,the median survival after urinary diversion was 8.67 months(interquartile range,2.99-17.28 months).In the multivariate analysis,a lower grade of hydronephrosis and cancer cachexia negatively impacted ***:Cancer patients with MUO have a poor pro

关键词： Hydronephrosis Ureteral obstruction Neoplasms Urinary diversion Survival Prognosis

Kerogen Kinetic Distributions and Simulations Provide Insights into Petroleum Transformation Fraction (TF) Profiles of Organic-Rich Shales

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Journal of Earth Science 2024年第3期35卷 747-757页

作者： david A.Wood DWA Energy Limited Lincoln LN59JPUnited Kingdom

Two hundred and fifty single first-order Arrhenius reactions are simulated to generate S2 pyrograms at three heating rates 25,15,and 5°C·*** activation energy(E)and pre-exponential factor(A)of the reactions simulated follow a long-established trend of those variable values displayed by shales and *** characteristics of the transformation fraction(TF)profiles(product generation window temperatures)of the simulated single reactions are compared to the TF profiles of recorded shale pyrograms generated by multiple reactions with different E-A values lying near the defined E-A *** similarities and differences are observed between the TF profile values of the two *** similarities support the spread of E-A values involved in shale pyrogram best *** differences are most likely explained by the complexity of the multiple kerogen first-order and second-order reactions contributing to the recorded shale pyrograms versus the simplicity and crispness of the single first-order reactions *** results also justify the validity of using the previously described“variable E-A pyrogram-fitting method”of multi-heating-rate shale pyrograms enabling optimizers to choose multiple reactions from an unlimited range of E-A *** contrast,further doubt is cast on the validity of the constant-A pyrogram-fitting method used by the Easy%Ro technique,in that a distribution of reactions with a single A value is unlikely to represent the complex variety of kerogen macerals observed in shale *** profiles generated by the variable E-A pyrogram-fitting method lie close to the established E-A trend and are likely to provide more realistic TF generation window temperatures than TF profiles generated by the constant-A pyrogram-fitting method.

关键词： transformation fraction profiles simulated S2 pyrograms multiple heating rates kerogen/shale kinetics S2 pyrogram fitting techniques kerogen petroleum research.

Secondary rectal linitis plastica caused by prostatic adenocarcinoma-magnetic resonance imaging findings and dissemination pathways:A case report

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World Journal of Radiology 2024年第9期16卷 473-481页

作者： Andres Antonio Labra Giancarlo Schiappacasse Rolando Alfonso Cocio Jorge Tomás Torres Fernando Omar gonzález Joaquin Alberto Cristi Marcela Schultz Department of Radiology Facultad de Medicina Clínica Alemana-Universidad del DesarrolloSantiago 7650568Región MetropolitanaChile Department of Pathology Clínica Alemana de SantiagoSantiago 7650568Región MetropolitanaChile

BACKGROUND Secondary rectal linitis plastica(RLP)from prostatic adenocarcinoma is a rare and poorly understood form of metastatic spread,characterized by a desmoplastic response and concentric rectal wall infiltration with mucosal *** complicates endoscopic diagnosis and can mimic gastrointestinal *** case series underscores the critical role of magnetic resonance imaging(MRI)in identifying the distinct imaging features of RLP and highlights the importance of considering this condition in the differential diagnosis of patients with a history of prostate *** SUMMARY Three patients with secondary RLP due to prostatic adenocarcinoma presented with varied clinical *** first patient,a 76-year-old man with advanced prostate cancer,had rectal pain and *** showed diffuse prostatic invasion and significant rectal wall thickening with a characteristic"target sign"*** second,a 57-year-old asymptomatic man with elevated prostatespecific antigen levels and a history of prostate cancer exhibited rectoprostatic angle involvement and rectal wall thickening on MRI,with positron emission tomography/computed tomography PSMA confirming the prostatic origin of the metastatic *** third patient,an 80-year-old post-radical prostatectomy,presented with refractory *** revealed a neoplastic mass infiltrating the rectal *** all cases,MRI consistently showed stratified thickening,concentric signal changes,restricted diffusion,and contrast enhancement,which were essential for diagnosing secondary *** confirmed the prostatic origin of the neoplastic involvement in the *** Recognizing MRI findings of secondary RLP is essential for accurate diagnosis and management in prostate cancer patients.

关键词： Rectal linitis plastica Prostatic adenocarcinoma Signet ring cell carcinoma Metastatic spread Magnetic resonance imaging Concentric wall infiltration Case report

Analysis of ancient mass extinction recoveries in marine environments: generating strategies for managing outcomes of the current mass extinction

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National Science Review 2024年第1期11卷 8-10页

作者： david J.Bottjer Department of Earth Sciences University of Southern California

The defining feature of a mass extinction and its associated recovery is the global amount of extinction that occurred[1]. However, there is finer-scale detail to the story, as seen in the ongoing modern mass extinction(the sixth mass extinction), which exhibits variable effects among marine ecosystems and environments, and hence geographic areas [1].

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Reachability-Based Confidence-Aware Probabilistic Collision Detection in Highway Driving

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Engineering 2024年第2期33卷 90-107页

作者： Xinwei Wang Zirui Li Javier alonso-Mora Meng Wang School of Engineering and Materials Science Queen Mary University of LondonLondon E14NSUK Department of Cognitive Robotics Delft University of TechnologyDelft 2628 CDNetherlands School of Mechanical Engineering Beijing Institute of TechnologyBeijing 100081China Chair of Traffic Process Automation “Friedrich List”Faculty of Transport and Traffic SciencesTU DresdenDresden 01069Germany

Risk assessment is a crucial component of collision warning and avoidance systems for intelligent ***-based formal approaches have been developed to ensure driving safety to accurately detect potential vehicle ***,they suffer from over-conservatism,potentially resulting in false–positive risk events in complicated real-world *** this paper,we combine two reachability analysis techniques,a backward reachable set(BRS)and a stochastic forward reachable set(FRS),and propose an integrated probabilistic collision–detection framework for highway *** this framework,we can first use a BRS to formally check whether a two-vehicle interaction is safe;otherwise,a prediction-based stochastic FRS is employed to estimate the collision probability at each future time ***,the framework can not only identify non-risky events with guaranteed safety but also provide accurate collision risk estimation in safety-critical *** construct the stochastic FRS,we develop a neural network-based acceleration model for surrounding vehicles and further incorporate a confidence-aware dynamic belief to improve the prediction *** experiments were conducted to validate the performance of the acceleration prediction model based on naturalistic highway driving *** efficiency and effectiveness of the framework with infused confidence beliefs were tested in both naturalistic and simulated highway *** proposed risk assessment framework is promising for real-world applications.

关键词： Probabilistic collision detection Confidence awareness Probabilistic acceleration prediction Reachability analysis Risk assessment

Neuropsychological Profile of a Patient with Acquired Brain Damage Following Vascular Lesion of the Left Anterior Cingulate Cortex

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Neuroscience & Medicine 2024年第1期15卷 66-75页

作者： Jimmy Zúñiga-Márquez Lina Borda-Camargo Diego Buitrago-Mora Lorely Guerra-Valdés Laura gonzález Patricia Quintero-Cusgüen Nataly Gutierrez-Ávila Hospital Universitario de la Samaritana Bogotá Colombia Neuropsychological Assessment and Diagnosis Graduate Program School of Psychology Universidad San Buenaventura Bogotá Bogotá Colombia

Stroke is a physiological alteration associated with changes in blood flow that can result in sudden-onset cognitive impairment. It has a heterogenous clinical presentation with varying degrees of severity correlated with specific central nervous system zones or areas, and its prognosis is uncertain. This case study describes a 62-year-old male patient with acquired brain damage of the anterior cingulate cortex as a result of an ischemic event in the territory of the left anterior cerebral artery. Cognitive function was assessed using the neuropsychological executive function and frontal lobe test battery (BANFE-2) as well as other neuropsychological tests. The results show a profile of higher mental functions characterized by the presence of dysexecutive syndrome with marked behavioral alteration and diencephalic amnesia. .

关键词： Ischemic Stroke Anterior Cingulate Cortex Neuropsychology Acquired Brain Damage

基于艺术治疗方法的护理干预在边缘型人格障碍患者中的应用

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International Journal of Nursing Sciences 2024年第2期11卷 205-213页

作者： Ana Morales-alonso Angela Iglesias-de-la-Iglesia Miriam alonso-Maza Dr.Rodríguez Lafora Hospital(Hospital Dr.Rodríguez Lafora) MadridSpain Department of Nursing and Stomatology University Rey Juan CarlosAlcorconMadridSpain

目的ZentangleR艺术治疗方法被应用于心理健康相关领域,尚未在边缘型人格障碍患者得到验证。本研究分析边缘型人格障碍患者接受ZentangleR艺术治疗方法的练习体验。方法采用现象学解释方法,对患者进行半结构化访谈。患者均已在西班牙某... 详细信息

目的ZentangleR艺术治疗方法被应用于心理健康相关领域,尚未在边缘型人格障碍患者得到验证。本研究分析边缘型人格障碍患者接受ZentangleR艺术治疗方法的练习体验。方法采用现象学解释方法,对患者进行半结构化访谈。患者均已在西班牙某医院的人格障碍治疗室接受了每个月1次,共6次ZentangleR艺术治疗。本研究中共访谈了15例患者。Smith、Flowers和Larkin方法用于资料分析中的评估。结果根据研究结果,共提炼出3个类别的主题:有耕耘即有收获(参与者报告了注意力、放松、人际关系、与环境互动方面的改善,以及接受和改变的积极体验);众擎易举(患者认可在团体中感觉更好,并建立了相互联系;他们也描述了团体环境对个人行为的影响);画出自己的轨迹(通过绘画方式提供了自我表达和自我认识的媒介,通过情感表达提升了幸福感,提高了创造力,增强了自信心)。结论通过练习ZentangleR,患者可以作出灵活性和适应性等行为反应,通过焦虑管理、冲动控制改善情绪健康,学习应对问题,提高自尊或注意力。心理健康护理在边缘型人格的综合治疗及协同多样化补充性干预措施中发挥着积极作用。

关键词：艺术治疗边缘型人格障碍心理健康护理 Zentangle®

Current state-of-the-art review of footwear–ground friction

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Friction 2024年第10期12卷 2188-2204页

作者： david REBENDA Tomáš SÁHA Footwear Research Centre University InstituteTomas Bata University in ZlinZlin 76001Czech Republic Faculty of Mechanical Engineering Brno University of TechnologyBron 61600Czech Republic

The most important role of footwear is to ensure safe,functional walking,and foot *** the proper functionality of not only the work shoes,the anti-slip behavior of the shoe under various conditions and environments plays an important role in the prevention of slips,trips,falls,and consequent *** article is intended to review the current understanding of the frictional mechanisms between shoe outsoles and various counterfaces that impact the evaluation of outsole *** research focuses on the mechanisms driving outsole friction on different ground surfaces or the definition and description of parameters that influence outsole ***,the review discusses the effect of various surface contaminants on footwear ***,challenges and outlooks in the field of footwear outsoles are briefly mentioned.

关键词： shoe outsole composite slipperiness coefficient of friction(COF) adhesion safe walk