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Amyloid-beta-dependent phosphorylation of collapsin response mediator protein-2 dissociates kinesin in Alzheimer＇s disease

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Neural Regeneration Research 2018年第6期13卷 1066-1080页

作者： sara h.mokhtar Min Joung Kim Kylie A.Magee Pei Mun Aui Speros Thomas Maha M.Bakhuraysah Amani A.Alrehaili Jae Young Lee David L.Steer Rachel Kenny Catriona Mc Lean Michael F.Azari Antonis Birpanagos Ewlina Lipiec Philip heraud Bayden Wood Steven Petratos Department of Neuroscience Central Clinical School Monash University Prahran Victoria Australia Department of Biochemistry and Molecular Biology Monash Universityl Clayton Victoria Australia Department of Anatomy & Developmental Biology Monash University Clayton Victoria Australia Department of Anatomical Pathology Alfred Hospital Prahran Victoria Australia School of health and Biomedical Sciences RMIT University Bundoora Victoria Australia Division of Animal and human Physiology Department of Biology National and Kapodistrian University of Athens Ilisia Athens Greece The henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences Department of Applied Spectroscopy RadzikowskiegoKrakow Poland Centre for Biospectroscopy and Department of Microbiology Monash University Clayton Victoria Australia

Alzheimer’s disease（AD）is a neurodegenerative disorder characterized by accumulation of amyloid plaques and neurofibrillary *** to the development of these characteristic pathological hallmarks of AD,anterograde axonal transport is ***,the key proteins that initiate these intracellular impairments remain *** collapsin response mediator protein-2（CRMP-2）plays an integral role in kinesin-1-dependent axonal transport and there is evidence that phosphorylation of CRMP-2releases ***,we tested the hypothesis that amyloid-beta（Aβ）-dependent phosphorylation of CRMP-2 disrupts its association with the kinesin-1（an anterograde axonal motor transport protein）in *** found that brain sections and lysates from AD patients demonstrated elevated phosphorylation of CRMP-2 at the T555 ***,in the transgenic Tg2576 mouse model of familial AD（FAD）that exhibits Aβaccumulation in the brain with age,we found substantial co-localization of p T555CRMP-2and dystrophic *** Sh-SY5Y differentiated neuronal cultures,Aβ-dependent phosphorylation of CRMP-2 at the T555 site was also elevated and this reduced the CRMP-2 association with *** overexpression of an unphosphorylatable form of CRMP-2 in neurons promoted the re-establishment of CRMP-2-kinesin association and axon *** data suggest that Aβ-dependent phosphorylation of CRMP-2 at the T555 site may directly impair anterograde axonal transport protein function,leading to neuronal defects.

关键词： amyloid-beta protein kinases collapsin response mediator protein microtubules kinesin tubulin

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The complex role of protocadherin-19 in brain function:a focus on the oxytocin system

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Neural Regeneration Research 2025年第11期20卷 3211-3212页

作者： sara Mazzoleni Marta Busnelli Silvia Bassani CNR Institute of Neuroscience Vedano al LambroItaly NeuroMi Milan Center for Neuroscience MilanItaly

Mutations in the protocadherin-19(PCDh19)gene(Xq22.1)cause the X-linked syndrome known as developmental and epileptic encephalopathy 9(DEE9,OMIM#300088)(Dibbens et al.,2008).DEE9 is characterized by early-onset clustering epilepsy associated with intellectual disability ranging from mild to profound,autism spectrum disorder,and other neuropsychiatric features including schizophrenia,anxiety,attentiondeficit/hyperactivity,and obsessive or aggressive *** seizures may become less frequent in adolescence,psychiatric comorbidities persist and often worsen with age(Dibbens et al.,2008;Kolc et al.,2020).

关键词： epilepsy function system

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Nonlinear aspects of energy dissipation in wood-panel joints sara Casciati

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Earthquake Engineering and Engineering Vibration 2007年第4期6卷 259-268页

作者： sara Casciati ASTRA Dept. School of Architecture University of Catania at Siracusa 96100 Siracusa Italy

The joints connecting vertical and horizontal elements are the ＂weak link＂ in structural systems assembled from wood panels. If they are too weak, local failures may occur, resulting in performance that is significantly below expectations. If they are too resistant, the joints may be unable to dissipate energy during vibrations, thus possibly initiating a fast progressive failure. This paper re-processes and re-elaborates the results of shaking table tests previously carried out by the author and other co-workers. The goal is to assess the feasibility of a joint which is able to dissipate energy during vibration, without degrading the connection performance.

关键词： dynamic excitation energy dissipation wood panels joint monitoring system shaking table tests

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Flexible neural probes:a review of the current advantages,drawbacks,and future demands

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第2期25卷 153-167页

作者： sara PIMENTA Joao R.FREITAS Joséh.CORREIA CMEMS-UMinho University of MinhoGuimarães4800-058Portugal LABBELS-Associate Laboratory Braga/GuimarãesPortugal

Brain diseases affect millions of people and have a huge social and economic *** use of neural probes for studies in animals has been the main approach to increasing knowledge about neural network ***,neuroscientists are trying to develop new and more effective therapeutic approaches to treating neurological *** implementation of neural probes with multifunctionalities(electrical,optical,and fluidic interactions)has been increasing in the last few years,leading to the creation of devices with high temporal and spatial *** the applicability of,and elements integrated into,neural probes has also led to the necessity to create flexible interfaces,reducing neural tissue damage during probe implantation and increasing the quality of neural acquisition *** this paper,we review the fabrication,characterization,and validation of several types of flexible neural probes,exploring the main advantages and drawbacks of these ***,future developments and applications are ***,this review aims to present the currently available flexible devices and future appropriate avenues for development as possible guidance for future engineered devices.

关键词： Brain knowledge Flexible interface Multifunctional probe

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Automatic characterization of spherical metal powders by microscope image analysis:a parallel computing approach

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Journal of Iron and Steel Research International 2023年第11期30卷 2293-2300页

作者： Xiang Li Linyi Cui sara Shonkwiler sara McMains University of California BerkeleyBerkeleyCA94720USA The hong Kong Polytechnic University Hong KongChina

The microstructural characteristics of spherical metal powders play an important role in determining the quality of mechanical parts manufactured by powder metallurgy *** the individual powder particles from their microscopic images is one of the most convenient and cost-efficient methods for the analysis of powder *** numerous image processing algorithms have been developed for automating the powder particle identification process,they perform less accurately in identifying adjacent particles that are heavily overlapped in their image *** propose an automatic algorithm to robustly and accurately identify spherical powder particles,especially heavily overlapped particles,from their microscope images.A parallel computing framework is designed to further enhance the computational efficiency of the proposed *** characteristics such as particle size distribution and the location of potential satellite particles have been derived from our identification *** accuracy and efficiency of our algorithm are validated by real-world scanning electron microscope images,outperforming other existing methods and achieving both precision and recall above 99%.

关键词： computing image overlapped

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Geological Controls and Prospectivity Mapping for Manganese Ore Deposits Using Predictive Modeling Comparison:An Integration of Outcrop and Remote Sensing Data,Sinai Microplate,Egypt

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Journal of Earth Science 2023年第2期34卷 588-608页

作者： sara Zamzam Geology Department Faculty of ScienceZagazig UniversityZagazig 44519Egypt

One of the most controversial minerals in their origin and occurrence around the world is manganese *** Abu Zenima area is rated one of the most economically important places where manganese ore deposits(Mn ODs)are located in the southwest Sinai microplate,*** deposits are confined with the Um Bogma Formation(UBF)and the reserves of this region are relatively *** this study,optical and radar data are used in a new challenge as an attempt to reach the closest controls and setting of Mn ***,Frequency Ratio(FR)and Logistic Regression(LogR)predictive models are applied to integrate different geospatial thematic maps,to predict new potential resource zones for increasing the ranges of mining ***8 OLI,Sentinel-2A Multi Spectral Instrument and Radar(Sentinel-1B)data are combined for mapping Mn ODs locations and their relationship with geological structures and the surrounding *** ratio,Principal and Independent Component Analysis techniques and four classification algorithms were implemented to the optical’VNIR and SWIR ***,the interferometric processing steps for Sentinel-1 data were made for understanding the tectonic features in the *** FR and LogR models are validated during fieldwork with known Mn ODs *** indicate that processed images are capable of differentiation of UBF which broadly distributed in the central and southern parts of the *** ODs possibly formed by thermal events that attributed to paleo-volcanic events before the rift *** high accuracy of LogR model(0.902)suggests that high Mn ODs potential zones are identified within the intersected fault zones near granitic *** integration is recommended for discriminating hydrothermally Mn ODs in other arid geographic regions.

关键词： manganese deposits Abu Zenima Landsat8 oli sentinel data fault zones predictive modeling remote sensing

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Modeling the spread of spatio-temporal phenomena through the incorporation of ANFIS and genetically controlled cellular automata: a case study on forest fire

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International Journal of Digital Earth 2013年第1期6卷 51-75页

作者： Mohammad h.Vahidnia Ali A.Alesheikh Saeed Behzadi sara Salehi Geodesy and Geomatics Engineering Department of Geospatial Information SystemK.N.Toosi University of TechnologyTehranIran Faculty of Geodesy and Geomatics Engineering Department of PhotogrammetryK.N.Toosi University of TechnologyTehranIran

Virtual representation and simulation of spatio-temporal phenomena is a promising goal for the production of an advanced digital *** modeling,which is one of the most helpful analyses in the geographic information system(GIS),plays a prominent role in meeting this *** study proposes a new model that considers both aspects of static and dynamic behaviors of spreadable spatio-temporal in cellular automata(CA)***,artificial intelligence tools such as adaptive neuro-fuzzy inference system(ANFIS)and genetic algorithm(GA)were used in accordance with the objectives of knowledge discovery and *** conditions in updating states are considered so traditional CA transition rules can be accompanied with the impact of fuzzy discovered knowledge and the solution of spread *** focused on the estimation of forest fire growth as an important case study for decision makers.A two-dimensional cellular representation of the combustion of heterogeneous fuel types and density on non-flat terrain were successfully linked with dynamic wind and slope *** validation of the simulation on experimental data indicated a relatively realistic head-fire *** investigations showed that the results obtained using the dynamic controlling with GA in the absence of static modeling with ANFIS were unacceptable.

关键词： geographic information system adaptive neuro-fuzzy inference system cellular automata genetic algorithm spatio-temporal spread forest fire digital earth

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A Voronoi diagram approach for detecting defects in 3D printed fiber-reinforced polymers from microscope images

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Computational Visual Media 2023年第1期9卷 41-56页

作者： Xiang Li sara McMains University of California Berkeley BerkeleyCalifornia94720USA

Fiber-reinforced polymer(FRP)composites are increasingly popular due to their superior strength to weight *** contrast to significant recent advances in automating the FRP manufacturing process via 3D printing,quality inspection and defect detection remain largely manual and *** this paper,we propose a new approach to automatically detect,from microscope images,one of the major defects in 3D printed FRP parts:fiber-deficient areas(or equivalently,resin-rich areas).From cross-sectional microscope images,we detect the locations and sizes of fibers,construct their Voronoi diagram,and employ-shape theory to determine fiber-deficient *** Voronoi diagram and-shape construction algorithms are specialized to exploit typical characteristics of 3D printed FRP parts,giving significant efficiency *** algorithms robustly handle real-world inputs containing hundreds of thousands of fiber cross-sections,whether in general or non-general position.

关键词： 3D printing(3DP) microscope image processing fiber-reinforced polymer(FRP) Voronoi diagrams -shapes resin-rich areas

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Solid-state impedance spectroscopy studies of dielectric properties and relaxation processes in Na_(2)O–V_(2)O_(5)–Nb_(2)O_(5)–P_(2)O_(5) glass

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International Journal of Minerals,Metallurgy and Materials 2024年第1期31卷 186-196页

作者： sara Marijan Luka Pavic Division of Materials Chemistry Ruđer Boskovic InstituteBijenicka 54HR-10000 ZagrebCroatia

Solid-state impedance spectroscopy(SS-IS)was used to investigate the influence of structural modifications resulting from the addition of Nb2O5 on the dielectric properties and relaxation processes in the quaternary mixed glass former(MGF)system 35Na_(2)O–10V_(2)O_(5)–(55-x)P_(2)O_(5)–xNb_(2)O_(5)(x=0–40,mol%).The dielectric parameters,including the dielectric strength and dielectric loss,are determined from the frequency and temperature-dependent complex permittivity data,revealing a significant dependence on the Nb2O5 *** transition from a predominantly phosphate glass network(xhosphate glass net-work(10≤x≤20,region II)leads to an increase in the dielectric parameters,which correlates with the observed trend in the direct-cur-rent(DC)*** the predominantly niobate network(x≥25,region III),the highly polarizable nature of Nb5+ions leads to a fur-ther increase in the dielectric permittivity and dielectric *** is particularly evident in Nb-40 glass-ceramic,which contains Na_(13)Nb_(35)O_(94) crystalline phase with a tungsten bronze structure and exhibits the highest dielectric permittivity of 61.81 and the lowest loss factor of 0.032 at 303 K and 10 *** relaxation studies,analyzed through modulus formalism and complex impedance data,show that DC conductivity and relaxation processes are governed by the same mechanism,attributed to ionic *** contrast to glasses with a single peak in frequency dependence of imaginary part of electrical modulus,M″(ω),Nb-40 glass-ceramic exhibits two distinct contributions with similar relaxation *** high-frequency peak indicates bulk ionic conductivity,while the additional low-fre-quency peak is associated with the grain boundary effect,confirmed by the electrical equivalent circuit(EEC)*** scaling characteristics of permittivity and conductivity spectra,along with the electrical modulus,validate time-temperature superposition and demonstrate a

关键词： phosphate glasses glass-ceramics impedance spectroscopy dielectric properties relaxation processes permittivity scaling conductivity scaling modulus formalism

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Legacy earthen berms influence vegetation and hydrologic complexity in the Altar Valley,Arizona

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International Soil and Water Conservation Research 2023年第4期11卷 755-763页

作者： Mary h.Nichols sara E.Duke Chandra holifield Collins Lauren Thompson Southwest Watershed Research Center USDA-ARS2000 E.Allen Rd.TucsonAZ85719USA Southern Plains Area Research Center USDA-ARSSPARCCollege StationTX77845USA University of Arizona College of Science GraduateTucsonAZ85719USA

Across the American Southwest water development has played a critical role in managing *** berms have been constructed throughout US rangelands to manage runoff and reduce *** berms altered runoff patterns to increase soil moisture with positive local vegetative ***,altered runoff patterns can be considered a disturbance that affects broader scale vegetation *** hypothesized that the hydrologic impacts of earthen berms in semiarid rangelands will be reflected in contrasting upslope and downslope vegetation patterns.A supervised classification of grass,shrubs,and bare soil was performed using orthographic imagery taken in June 2016 to quantify the effects of 181 earthen berms in the uplands and floodplain of the Altar Valley in Southern Arizona,*** berms blocked runoff,creating downslope runoff"shadows"within which the precipitation is the dominant water *** documented more bare soil downslope of intact berms in comparison with *** and shrub cover affected by berms were related to soil *** and shrub cover were not different above and below intact berms on fine textured soils,but on sites with coarser textured soil,grass cover was lower downslope of *** breaches occurred on coarser textured soils,the up and downslope differences in grass cover *** study points to the role of conservation structures in adding additional complexity to already heterogeneous landscapes by creating patchwork assemblages of vegetation and bare soil proximal to earthen runoff and erosion control berms.

关键词： Legacy conservation structure Earthen bank Earthen berm Land degradation Rangeland

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