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Fibrinogen’s potential role in connecting cerebrovascular abnormalities with glymphatic dysfunction in Alzheimer’s disease

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Neural Regeneration Research 2025年第1期20卷 203-204页

作者： Vishal singh Arnab choudhury Hyung Jin Ahn Department of Pharmacology Physiology and NeurosciencesRutgers-New Jersey Medical SchoolNewarkNJUSA Brain Health Institute Rutgers UniversityPiscatawayNJUSA

Alzheimer’s disease(AD)stands out as the primary manifestation of age-related dementia,portraying a chronic neurodegenerative disorder distinguished by the accumulation of fibrillar amyloid-β(Aβ)plaques and neurofibrillary tangles of hyperphosphorylated ***,from a clinical standpoint,AD presents itself as a complex condition with a spectrum of dysfunctions rather than a singular pathological *** often-overlooked aspect of the disease is the presence of extensive cerebrovascular abnormalities,given that the majority of AD patients experience altered cerebral blood flow,damaged vasculature,increased microinfarcts and *** models of AD further support this observation,showing cerebrovascular dysfunction such as impaired cerebral blood flow and altered cerebrovascular reactivity(Tataryn et al.,2021;Gareau et al.,2023).

关键词： cerebrovascular dysfunction Alzheimer

Interaction of Heterotrimeric G-Protein Components with Receptor-like Kinases in Plants： An Alternative to the Established signaling Paradigm？

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Molecular Plant 2016年第8期9卷 1093-1095页

作者： swarup roy choudhury sona Pandey Donald Danforth Plant science Center St. Louis MO 63132 USA

Heterotrimeric G proteins comprising Ga, Gβ, and Gγ subunits （hereafter termed G proteins） mediate important signaling pro- cesses in all eukaryotes. As per the established paradigm,

关键词： RECEPTOR-like kinases G protein coupled receptors PLANT genetics

A new recursive method for the analysis of linear time invariant dynamic systems via double-term triangular functions (DTTF) in state space environment

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控制理论与应用（英文版） 2013年第1期11卷 108-115页

作者： Anish DEB suchismita GHOsH srimanti roy choudhury Gautam sARKAR Department of Applied Physics University of Calcutta Department of Electrical Engineering MCKV Institute of Engineering Department of Electrical Engineering Budge Budge Institute of Technology

This paper presents a new recursive method for system analysis via double-term triangular functions （DTTF） in state space environment. The proposed method uses orthogonal triangular function sets and proves to be more accurate as compared to single term Walsh series （sTWs） method with respect to mean integral square error （MIsE）. This has been established theoretically and comparison of error with respect to MIsE is presented for clarity. A numerical example is treated to establish the proposed method. Relevant curves for the solutions of states of the dynamic system are also presented with plots of percentage error for DTTF-based analysis.

关键词： Double term triangular functions Walsh functions, system analysis single term Walsh series Mean integral square error (MIsE)

Modeling and analysis of singular systems via orthogonal triangular functions

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控制理论与应用（英文版） 2013年第2期11卷 141-148页

作者： suchismita GHOsH Anish DEB srimanti roy choudhury Gautam sARKAR Department of Electrical Engineering MCKV Institute of Engineering Department of Applied Physics University of Calcutta92 APC RoadKolkata 700009 India Department of Electrical Engineering Budge Budge Institute of Technology Department of Applied Physics University of Calcutta2 APC RoadKolkata 700009 India

This paper presents a new approach to singular system analysis by modeling the system in terms of orthog- onal triangular functions （TFs）. The proposed method is more accurate compared to block pulse function-based analysis with respect to mean integral square error （MIsE）. A numerical example involving four states of a singular system is treated and solutions obtained thereof. Four tables and relevant curves are presented to compare the respective coefficients in block pulse function （BPF） domain as well as in TF domain. The percentage error of the samples determined via TF domain are compared with the exact samples of the states. Furthermore, MIsE for both BPF and TF analysis are computed and compared to reveal the efficiency of TF-based analysis.

关键词： singular systems Triangular functions Block pulse functions system analysis Modeling

The formation of authigenic deposits during Paleogene warm climatic intervals:A review

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Journal of Palaeogeography 2020年第4期9卷 388-414页

作者： santanu Banerjee Tathagata roy choudhury Pratul Kumar saraswati sonal Khanolkar Department of Earth sciences Indian Institute of Technology BombayPowaiMumbai-400076India Department of Earth sciences Indian Institute of Technology KanpurKanpur-208016India

Although Paleogene warm climatic intervals have received considerable attention for atmospheric and oceanographic changes,the authigenic mineralization associated with these time spans remains *** extensive review of the literature reveals a close correspondence between the high abundance of glauconite and warm climatic intervals during the Paleogene *** abundance of phosphorite,ironstone,lignite and black shale deposits reveals similar *** investigated thoroughly,the origin of these authigenic deposits is never understood in the background of Paleogene warming climatic intervals.A combination of factors like warm seawater,hypoxic shelf,low rate of sedimentation,and enhanced rate of continental weathering facilitated the *** last factor caused the excess supply of nutrients,including Fe,si,K,Mg and Al through the rivers,the cations needed for the formation of *** excessive inflow of nutrient-rich freshwater into the shallow seas further ensured high organic productivity and stratification in shallow shelves,causing *** consequent rapid rise in sea-level during the warm periods created extensive low-relief shallow marine shelves starved in ***-deficiency in the shallow marine environment facilitated the fixation of Fe into the glauconite *** inflow of nutrient-rich water during the warm climatic intervals facilitated the formation of phosphorite,ironstone,and organic-matter-rich sedimentary deposits as *** global factors primarily controlled the formation of these authigenic deposits,local factors played significant roles in some of the ***,phosphorites formed in marine conditions with open circulation within the tropical *** lush growth of rainforest covers in the tropical belt facilitated the formation of coastal lignite.

关键词： Warm climatic intervals Hyperthermal events Glauconite Phosphorite Oolitic ironstone Lignite Hypoxia Paleogene

Distinguishing celadonite from glauconite for environmental interpretations:a review

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Journal of Palaeogeography 2023年第2期12卷 179-194页

作者： Pragya singh santanu Banerjee Tathagata roy choudhury satadru Bhattacharya Kanchan Pande Department of Earth sciences Indian Institute of Technology BombayPowaiMumbai400076India space Applications Centre Indian Space Research OrganisationAhmedabad380015India

Celadonite and glauconite are comparable in terms of physical,chemical and mineralogical *** of both these minerals requires slightly oxygen-depleted conditions in a semiconfined micro-environment,facilitating the uptake of Fe into the *** glauconite is ubiquitous in marine deposits,celadonite forms in both marine and non-marine environments,more commonly by altering intermediate to mafic rocks.A review of data across the geological column shows that both these minerals are more common in the Mesozoic and Cenozoic,which may be related to extensive *** composition of celadonite and glauconite is highly variable and is controlled by the availability of cations within the pore water *** major element composition of celadonite overlaps with that of evolved to highly evolved glauconite to a large *** data and representative samples of celadonite and glauconite reveal subtle differences in X-ray diffraction parameters and Fourier transform infrared(FTIR)*** shows sharper basal and hkl reflections than *** characteristically exhibits distinct 111-021,003-022,023 and 130-131,and 060 reflections at less than 1.51A,indicating a betterordered crystallographic structure than *** FTIR spectra of celadonite and glauconite show similar absorption bands although si-O bending,si-O stretching and OH-stretching bands are sharper and well resolved in celadonite than that of *** palaeoenvironmental interpretations,it is,therefore,necessary to examine the subtle differences in X-ray diffraction parameters and FTIR spectra to confirm the identification of these two *** composition of celadonite relates closely to the host rock and depositional *** celadonite associated with mafic rock shows relatively high Fe,Mg and low Al *** contrast,those associated with felsic to intermediate composition rocks show slightly higher contents of Al and

关键词： Celadonite Glauconite Authigenic green silicates Large igneous province Marine Fourier transform infrared spectroscopy X-ray diffraction

A New Contraction Principle in Menger spaces

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Acta Mathematica sinica,English series 2008年第8期24卷 1379-1386页

作者： Binayak s.choudhury Krishnapada DAs Department of Mathematics Bengal Engineering and Science UniversityShibpurP.O.- B.GardenShibpurHowrah- 711103West BengalINDIA

In the present work we introduce a new type of contraction mapping by using a specific function and obtain certain fixed point results in Menger spaces. The work is in line with the research for generalizing the Banach＇s contraction principle. We extend the notion of altering distance function to Menger spaces and obtain fixed point results.

关键词： Menger space φ-contraction fixed point

Protected simultaneous quantum remote state preparation scheme by weak and reversal measurements in noisy environments

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Chinese Physics B 2024年第2期33卷 169-177页

作者： Mandal Manoj Kumar choudhury Binayak s. samanta soumen Department of Mathematics Indian Institute of Engineering Science and TechnologyShibpur B.GardenHowrah 711103West BengalIndia

We discuss a quantum remote state preparation protocol by which two parties, Alice and Candy, prepare a single-qubit and a two-qubit state, respectively, at the site of the receiver Bob. The single-qubit state is known to Alice while the two-qubit state which is a non-maximally entangled Bell state is known to Candy. The three parties are connected through a single entangled state which acts as a quantum channel. We first describe the protocol in the ideal case when the entangled channel under use is in a pure state. After that, we consider the effect of amplitude damping(AD) noise on the quantum channel and describe the protocol executed through the noisy channel. The decrement of the fidelity is shown to occur with the increment in the noise parameter. This is shown by numerical computation in specific examples of the states to be created. Finally, we show that it is possible to maintain the label of fidelity to some extent and hence to decrease the effect of noise by the application of weak and reversal measurements. We also present a scheme for the generation of the five-qubit entangled resource which we require as a quantum channel. The generation scheme is run on the IBMQ platform.

关键词： multi-qubit entangled channel quantum remote state preparation noisy environments weak and reversal measurements

seismic passive earth resistance using modified pseudo-dynamic method

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Earthquake Engineering and Engineering Vibration 2017年第2期16卷 263-274页

作者： Anindya Pain Deepankar choudhury s. K. Bhattacharyya Academy of scientific and Innovative Research(AcsIR) New Delhi 110001IndiaCSIR-Central Building Research InstituteRoorkee 247667India Dept.of Civil Engineering lndian Institute of Technology BombayPowaL Mumbai 400076lndiaAcademy of Scientific and Innovative Research(AcSIR)New Delhi 110001India Dept.of Civil Engineering Indian Institute of Technology KharagpurWest Bengal721302IndiaCSIR-Central Building Research InstituteRoorkee 247667India

In earthquake prone areas, understanding of the seismic passive earth resistance is very important for the design of different geotechnical earth retaining structures. In this study, the limit equilibrium method is used for estimation of critical seismic passive earth resistance for an inclined wall supporting horizontal cohesionless backfill. A composite failure surface is considered in the present analysis. seismic forces are computed assuming the backfill soil as a viscoelastic material overlying a rigid stratum and the rigid stratum is subjected to a harmonic shaking. The present method satisfies the boundary conditions. The amplification of acceleration depends on the properties of the backfill soil and on the characteristics of the input motion. The acceleration distribution along the depth of the backfill is found to be nonlinear in nature. The present study shows that the horizontal and vertical acceleration distribution in the backfill soil is not always in-phase for the critical value of the seismic passive earth pressure coefficient. The effect of different parameters on the seismic passive earth pressure is studied in detail. A comparison of the present method with other theories is also presented, which shows the merits of the present study.

关键词： retaining wall earthquake limit equilibrium method modified pseudo-dynamic method passive earthpressure composite failure mechanism