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monocytes in neonatal stroke and hypoxic-ischemic encephalopathy:Pathophysiological mechanisms and therapeutic possibilities

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Neuroprotection 2023年第1期1卷 20-33页

作者： Pedro m.Pimentel-Coelho Carlos Chagas Filho Biophysics Institute Federal University of Rio de JaneiroRio de JaneiroBrazil

Neonatal arterial ischemic stroke(NAIS)and neonatal hypoxic-ischemic encephalopathy(HIE)are common causes of neurological impairments in infants,for which treatment options are very *** and HIE induce an innate immune response that involves the recruitment of peripheral immune cells,including monocytes,into the *** and monocyte-derived cells have the potential to contribute to both harmful and beneficial pathophysiological processes,such as neuroinflammation and brain repair,but their roles in NAIS and HIE remain poorly ***,recent evidence indicates that monocyte-derived macrophages can persist in the brain for several months following NAIS and HIE in mice,with possible long-lasting consequences that are still *** review provides a comprehensive overview of the mechanisms of monocyte infiltration and their potential functions in the ischemic brain,focusing on HIE and *** strategies targeting monocytes and the possibility of using monocytes for cell-based therapies are also discussed.

关键词： bone marrow cerebral ischemia microglia monocyte-derived macrophages monocytes neonatal brain injury neonatal hypoxia-ischemia perinatal stroke

AN EFFICIENT PARALLEL PROCESSING OPTImAL CONTROL SCHEmE FOR A CLASS OF NONLINEAR COmPOSITE SYSTEmS

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Acta mathematica Scientia 2017年第3期37卷 703-721页

作者： A. JAJARmT m. HAJIPOUR Department of Electrical Engineering University of Bojnord P.O. Box 94531-1339 Bojnord Iran Department of mathematics Faculty of Basic Sciences Sahand University of Technology P.O. Box 51335-1996 Tabriz Iran

This article presents an efficient parallel processing approach for solving the opti- mal control problem of nonlinear composite systems. In this approach, the original high-order coupled nonlinear two-point boundary value problem （TPBVP） derived from the Pontrya- gin＇s maximum principle is first transformed into a sequence of lower-order deeoupled linear time-invariant TPBVPs. Then, an optimal control law which consists of both feedback and forward terms is achieved by using the modal series method for the derived sequence. The feedback term specified by local states of each subsystem is determined by solving a ma- trix Riccati differential equation. The forward term for each subsystem derived from its local information is an infinite sum of adjoint vectors. The convergence analysis and parallel processing capability of the proposed approach are also provided. To achieve an accurate feedforward-feedbaek suboptimal control, we apply a fast iterative algorithm with low com- putational effort. Finally, some comparative results are included to illustrate the effectiveness of the proposed approach.

关键词： modal series method nonlinear composite system optimal control parallelprocessing

Viscosity Effects on Anisotropic Universe in Curvature-matter Coupling Gravity

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Communications in Theoretical Physics 2018年第5期69卷 537-543页

作者： m.Sharif Aisha Siddiqa Department of mathematics University of the PunjabQuaid-e-Azam Campus

In this paper, we study evolution of the universe in the background of f(R, T) gravity using LRS Bianchi type-Ⅰ model. We discuss scale factors as well as deceleration parameter in dark energy dominated era for different bulk viscosity models. The occurrence of big-rip singularity is also examined. It is concluded that expansion is faster when bulk viscosity is proportional to Hubble parameter as compared to other models.

关键词：粘性各向异性宇宙弯曲重力 LRS 模型体积

Prediction of Soil Depth from Digital Terrain Data by Integrating Statistical and Visual Approaches

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Pedosphere 2010年第3期20卷 361-367页

作者： F. m. ZIADAT International Center for Agricultural Research in the Dry Areas (ICARDA) P.O. Box 5466Aleppo (Syria)

Information about the spatial distribution of soil attributes is indispensable for many land resource management applications; however, the ability of soil maps to supply such information for modern modeling tools is questionable. The objectives of this study were to investigate the possibility of predicting soil depth using some terrain attributes derived from digital elevation models (DEms) with geographic information systems (GIS) and to suggest an approach to predict other soil attributes. Soil depth was determined at 652 field observations over the Al-muwaqqar Watershed (70 km2) in Jordan. Terrain attributes derived from 30-m resolution DEms were utilized to predict soil depth. The results indicated that the use of multiple linear regression models within small watershed subdivisions enabled the prediction of soil depth with a difference of 50 cm for 77% of the field observations. The spatial distribution of the predicted soil depth was visually coincided and had good correlations with the spatial distribution of the classes amalgamating three terrain attributes, slope steepness, slope shape, and compound topographic index. These suggested that the modeling of soil-landscape relationships within small watershed subdivisions using the three terrain attributes was a promising approach to predict other soil attributes.

关键词：土壤深度数据预测数字地形视觉多元线性回归模型属性空间统计整合

Jungck's Common Fixed Point Theorem and E.A Property

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Acta mathematica Sinica,English Series 2008年第1期24卷 87-94页

作者： m.ImDAD Javid ALI Department of mathematics Aligarh Muslim University

We prove that （E.A） property buys the required containment of range of one mapping into the range of other in common fixed point considerations up to a pair of mappings. While proving our results, we utilize the ide... 详细信息

关键词： E.A property weak compatible mappings coincidence points fixed points and implicit functions

An Assessment of Authorized Car Wash Site Suitability Using a GIS-Based modeling in Khartoum City, Sudan

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Journal of Geographic Information System 2022年第2期14卷 134-152页

作者： Ibrahim m. Eltom Ibrahim Department of Environment and Ecology GIS and RS Applications Faculty of Geographical and Environmental Sciences University of Khartoum Khartoum Sudan

The goal of this study is to assess the ability of existing car washing stations in Khartoum City using an Arcmap suitability modeling tool. methods: In Khartoum, an increasing number of vehicle wash stations were opened every day. The main criteria are street, the slope, the hospitals, the police station, and the school, which have been used to build a model of suitability based on weight overlay in ArcGIS 10.4. The findings revealed two evaluation tendencies. One tendency involves business centers that are located on main roads but are adjacent to residential areas, while another involves business centers that have rezoned residential plots without consideration for ideal site requirements for the environment. There are locations that would be appropriate for vehicle wash centers, according to the final suitability map. On a scale of 1 to 5, less than 30% of the study area is considered suitable for a new car wash regarding class 5. On the other hand, significant areas are available for car wash development in the second value of suitability 4, but as second-ranked suitability. The assessment was accomplished by comparing the final suitability map of car washing centers to the layers which represented them.

关键词： Car Wash Centers Suitability Analysis Suitability modeling Criteria

SOmE CONVOLUTION AND INCLUSION PROPERTIES FOR SUBCLASSES OF mEROmORPHIC p-VALENT FUNCTIONS INVOLVING INTEGRAL OPERATOR

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Acta mathematica Scientia 2013年第6期33卷 1749-1758页

作者： R.m.EL-ASHWAH Department of mathematics Faculty of ScienceDamietta University

making use of the linear operator Lp^m（λ,e）f（z）=1/z^p＋∞∑k=1[e/e＋λk]^m akz^k-p,where e〉0,λ〉0,p∈N,m∈N0=NU{0},z∈U^＊ and f（z）∈∑p,we introduce two subclasses of meromorphic p-valent analytic functions ... 详细信息

关键词： analytic functions meromorphic functions multiplier transformations

DTL cavity design and beam dynamics for a TAC linear proton accelerator

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Chinese Physics C 2012年第2期36卷 167-172页

作者： A. Caliskan m. Yilmaz Gazi University Arts and Sciences Faculty

A 30 mA drift tube linac （DTL） accelerator has been designed using SUPERFISH code in the energy range of 3-55 meV in the framework of the Turkish Accelerator Center （TAC） project. Optimization criteria in cavity design are effective shunt impedance （ZTT）, transit-time factor and electrical breakdown limit. In geometrical optimization we have aimed to increase the energy gain in each RF gap of the DTL cells by maximizing the effective shunt impedance （ZTT） and the transit-time factor. Beam dynamics studies of the DTL accelerator have been performed using beam dynamics simulation codes of PATH and PARmILA. The results of both codes have been compared. In the beam dynamical studies, the rms values of beam emittance have been taken into account and a low emittance growth in both x and y directions has been attempted.

关键词： proton accelerator cavity design beam dynamics

The Asymptotics of the Two-Dimensional Wave Equation for a General multi-Connected Vibrating membrane with Piecewise Smooth Robin Boundary Conditions

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Acta mathematica Sinica,English Series 2004年第2期20卷 209-222页

作者： E.m.E.ZAYED Department of mathematics Faculty of ScienceZagazig UniversityZagazigEgypt

The asymptotic expansion for small |t| of the trace of the wave kernel , where and are the eigenvalues of the negative Laplacian in the (x 2,x 2)-plane, is studied for a multi-connected vibrating membrane ? in R 2 surrounded by simply connected bounded domains ? j with smooth boundaries ?? j (j = 1, ..., n), where a finite number of piecewise smooth Robin boundary conditions on the piecewise smooth components Γ i (i = 1+k j?1, ..., k j ) of the boundaries ?? j are considered, such that and k 0 = 0. The basic problem is to extract information on the geometry of ? using the wave equation approach. Some geometric quantities of ? (e. g. the area of ?, the total lengths of its boundary, the curvature of its boundary, the number of the holes of ?, etc.) are determined from the asymptotic expansion of the trace of the wave kernel for small |t|.

关键词： Inverse problem Wave kernel Eigenvalues Robin boundary conditions Vibrating membrane Hearing the shape of a drum