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  1. Article ; Online: CryoAPEX: Inception, Growth and Evolution of the Method.

    Sengupta, R / Stahelin, R / Mattoo, S

    Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada

    2023  Volume 29, Issue Supplement_1, Page(s) 2108

    Language English
    Publishing date 2023-08-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 1385710-1
    ISSN 1435-8115 ; 1431-9276
    ISSN (online) 1435-8115
    ISSN 1431-9276
    DOI 10.1093/micmic/ozad067.1093
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Emergence of behavioral phenomena and adaptation effects in human numerosity decoder using recurrent neural networks.

    Verma, Bhavesh K / Sengupta, Rakesh

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 19571

    Abstract: Humans possess an innate ability to visually perceive numerosities, which refers to the cardinality of a set. Numerous studies indicate that the lateral intraparietal cortex (LIP) and other intraparietal sulcus (IPS) regions (region) of the brain contain ...

    Abstract Humans possess an innate ability to visually perceive numerosities, which refers to the cardinality of a set. Numerous studies indicate that the lateral intraparietal cortex (LIP) and other intraparietal sulcus (IPS) regions (region) of the brain contain the neurological substrates responsible for number processing. Existing computational models of number perception often focus on a limited range of numbers and fail to account for important behavioral characteristics like adaptation effects, despite simulating fundamental aspects such as size and distance effects. To address these limitations, our study develops (introduces) a novel computational model of number perception utilizing a network of neurons with self-excitatory and mutual inhibitory properties. Our approach assumes that the mean activation of the network at steady state can encode numerosity by exhibiting a monotonically increasing relationship with the input variable set size. By optimizing the total number of inhibition strengths required, we achieve coverage of the full range of numbers through three distinct intervals: 1 to 4, 5 to 17, and 21 to 50. Remarkably, this division aligns closely with the breakpoints in numerosity perception identified in behavioral studies. Furthermore, our study develops a method for decoding the mean activation into a continuous scale of numbers spanning from 1 to 50. Additionally, we propose a mechanism for dynamically selecting the inhibition strength based on current inputs, enabling the network to operate effectively across an extended (entire) range of numerosities. Our model not only sheds new light on the generation of diverse behavioral phenomena in the brain but also elucidates how continuous visual attributes and adaptation effects influence perceived numerosity.
    MeSH term(s) Humans ; Magnetic Resonance Imaging/methods ; Brain/physiology ; Neural Networks, Computer ; Parietal Lobe/physiology ; Cerebral Cortex ; Brain Mapping/methods
    Language English
    Publishing date 2023-11-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-44535-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: A Review on the Role of Phytoconstituents Chrysin on the Protective Effect on Liver and Kidney.

    Sarmah, Debika / Sengupta, Rupa

    Current drug discovery technologies

    2023  Volume 21, Issue 1, Page(s) e251023222716

    Abstract: Background: The chance of contracting significant diseases increases due to an unhealthy and contemporary lifestyle. Chrysin is a flavonoid of the flavone class in numerous plants, including Passiflora and Pelargonium. Chrysin has long been used to ... ...

    Abstract Background: The chance of contracting significant diseases increases due to an unhealthy and contemporary lifestyle. Chrysin is a flavonoid of the flavone class in numerous plants, including Passiflora and Pelargonium. Chrysin has long been used to treat a variety of illnesses. Chrysin, an essential flavonoid, has many pharmacological actions, including anticancer, antiviral, anti-inflammatory, anti-arthritic, depressive, hypolipidemic, hepatoprotective, and nephroprotective activity.
    Purpose: This explorative review was commenced to provide a holistic review of flavonoids confirming that Chrysin has a therapeutic potential on the liver and kidney and reduces the hepatotoxicity and nephrotoxicity induced by diverse toxicants, which can be helpful for the toxicologists, pharmacologists, and chemists to develop new safer pharmaceutical products with chrysin and other toxicants.
    Study design: The most relevant studies that were well-explained and fit the chosen topic best were picked. The achieved information was analyzed to determine the outcome by screening sources by title, abstract, and whole work. Between themselves, the writers decided on the studies to be considered. The necessary details were systematically organized into titles and subtitles and compressively discussed.
    Method: The information presented in this review is obtained using targeted searches on several online platforms, including Google Scholar, Scifinder, PubMed, Science Direct, ACS publications, and Wiley Online Library. The works were chosen based on the inclusion criteria agreed upon by all authors.
    Results: Chrysin is a promising bioactive flavonoid with significant health benefits, and its synthetic replacements are being utilized as pharmaceuticals to treat various diseases. Findings revealed that Chrysin exhibits hepatoprotective actions against several hepatotoxicants like 2,3,7,8 tetrachlorodibenzo- p-dioxin, carbon tetrachloride (CCl
    Conclusion: According to this revised study, chrysin is a promising phytoconstituent that can be utilized as an alternate treatment for various medications that cause hepatotoxicity and nephrotoxicity. With active chrysin, several dosage forms targeting the liver and kidneys can be formulated.
    MeSH term(s) Rats ; Animals ; Antioxidants/pharmacology ; Cisplatin/pharmacology ; Rats, Wistar ; Flavonoids/pharmacology ; Flavonoids/therapeutic use ; Kidney ; Chemical and Drug Induced Liver Injury/drug therapy ; Chemical and Drug Induced Liver Injury/prevention & control
    Chemical Substances Antioxidants ; chrysin (3CN01F5ZJ5) ; Cisplatin (Q20Q21Q62J) ; Flavonoids
    Language English
    Publishing date 2023-11-02
    Publishing country United Arab Emirates
    Document type Review ; Journal Article
    ISSN 1875-6220
    ISSN (online) 1875-6220
    DOI 10.2174/0115701638242317231018144944
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Reply.

    Barnett, Rosemarie / Sengupta, Raj

    Arthritis care & research

    2022  Volume 75, Issue 2, Page(s) 446–447

    Language English
    Publishing date 2022-11-02
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 645059-3
    ISSN 2151-4658 ; 0893-7524 ; 2151-464X
    ISSN (online) 2151-4658
    ISSN 0893-7524 ; 2151-464X
    DOI 10.1002/acr.25010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Fear of movement and competence frustration mediate the relationship between pain catastrophising and physical function in people living with axSpA: an online cross-sectional survey.

    Rouse, Peter C / Ingram, Thomas / Standage, Martyn / Sengupta, Raj

    Rheumatology international

    2024  Volume 44, Issue 5, Page(s) 933–941

    Abstract: The objective of this study is to examine the contribution of pain catastrophising to Axial Spondyloarthritis (axSpA) patient's physical function and to test the mediating role of fear of movement, and uniquely, the contribution of competence frustration ...

    Abstract The objective of this study is to examine the contribution of pain catastrophising to Axial Spondyloarthritis (axSpA) patient's physical function and to test the mediating role of fear of movement, and uniquely, the contribution of competence frustration to the fear-avoidance model. Participants (N = 98, 70% female, M age = 45.62, SD 12.16) completed an online survey (December 2020-May 2021) distributed in the United Kingdom via the National Axial Spondyloarthritis Society (n ≈ 3500; NASS, 2019). The PROCESS SPSS macro was used to test three mediation models using percentile bootstrap 95% confidence intervals (PBCI). A significant indirect effect on the relationship between pain and physical function via fear of movement (β = 0.10, 95% PBCI = 0.030-0.183) was observed (Model 1). Model 2 showed the relationship between pain catastrophising and physical function to be significantly mediated by fear of movement (β = 0.16, 95% PBCI = 0.005-0.322). Finally, Model 3 showed a significant indirect effect on the relationship between pain catastrophising and physical function via competence frustration (β = 0.15, 95% PBCI = 0.014-0.309) but not through fear of movement (β = 0.062, 95% PBCI = - 0.134 to 0.248). To our knowledge, this is the first study to examine and demonstrate the unique contribution of competence need frustration to the Fear-avoidance model in people that live with axSpA. Identifying modifiable factors that contribute to disease outcomes such as physical function can improve the care and quality of life for people living with a disease currently without a cure.
    MeSH term(s) Humans ; Female ; Middle Aged ; Male ; Cross-Sectional Studies ; Quality of Life ; Frustration ; Kinesiophobia ; Pain ; Fear ; Axial Spondyloarthritis
    Language English
    Publishing date 2024-03-20
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 8286-7
    ISSN 1437-160X ; 0172-8172
    ISSN (online) 1437-160X
    ISSN 0172-8172
    DOI 10.1007/s00296-024-05557-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Book ; Online: Sidelobe Modification for Reflector Antennas by Electronically-Reconfigurable Rim Scattering

    Ellingson, S. W. / Sengupta, R.

    2021  

    Abstract: Dynamic modification of the pattern of a reflector antenna system traditionally requires an array of feeds. This paper presents an alternative approach in which the scattering from a fraction of the reflector around the rim is passively modified using, ... ...

    Abstract Dynamic modification of the pattern of a reflector antenna system traditionally requires an array of feeds. This paper presents an alternative approach in which the scattering from a fraction of the reflector around the rim is passively modified using, for example, an electronically-reconfigurable reflectarray. This facilitates flexible sidelobe modification, including sidelobe canceling, for systems employing a single feed. Applications for such a system include radio astronomy, where deleterious levels of interference from satellites enter through sidelobes. We show that an efficient reconfigurable surface occupying about 11% of the area of an axisymmetric circular paraboloidal reflector antenna fed from the prime focus is sufficient to null interference arriving from any direction outside the main lobe with little change in the main lobe characteristics. We further show that the required surface area is independent of frequency and that the same performance can be obtained using 1-bit phase control of the constituent unit cells for a reconfigurable surface occupying an additional 6% of the reflector surface.

    Comment: Accepted for publication in IEEE Antennas & Wireless Propagation Letters. Minor revisions from previous version. 5 pages, 5 figures
    Keywords Astrophysics - Instrumentation and Methods for Astrophysics ; Electrical Engineering and Systems Science - Signal Processing
    Subject code 600
    Publishing date 2021-02-16
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Entanglement monogamy in indistinguishable particle systems.

    Das, Soumya / Paul, Goutam / Sengupta, Ritabrata

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 21972

    Abstract: Recently, it has been realized that indistinguishability is a resource for quantum information processing. A new method to represent the indistinguishable particles by Franco et al. (Sci Rep 6:20603, 2016, https://doi.org/10.1038/srep20603 ) and measure ... ...

    Abstract Recently, it has been realized that indistinguishability is a resource for quantum information processing. A new method to represent the indistinguishable particles by Franco et al. (Sci Rep 6:20603, 2016, https://doi.org/10.1038/srep20603 ) and measure the concurrence is developed by Nosrati et al. (npj Quantum Inf 6:39, 2020, https://doi.org/10.1038/s41534-020-0271-7 ). The monogamy property says that quantum entanglement cannot be shared freely between more than two particles. For three distinguishable particles, the monogamy of entanglement was first expressed as an inequality using squared concurrence where each particle has a single degree of freedom (for pure or mixed states). Using multiple degrees of freedom, similar inequality was shown to be held between two distinguishable particles. However, for two indistinguishable particles, where each particle cannot be addressed individually, the monogamy inequality was shown to be violated maximally for a specific state. Thus a question naturally arises: what happens to the monogamy of entanglement in the case of three or more indistinguishable particles? We prove that monogamy holds in this scenario and the inequality becomes equality for all pure indistinguishable states. Further, we provide three major operational meanings of our result. Finally, we present an experimental schematic using photons to observe our result.
    Language English
    Publishing date 2023-12-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-46515-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Spatial and temporal patterns of indicators of climate change and variability in the Arab world in the past four decades.

    Jaber, Salahuddin M / Abu-Allaban, Mahmoud M / Sengupta, Raja

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 15145

    Abstract: A comprehensive assessment of the spatial and temporal patterns of the most common indicators of climate change and variability in the Arab world in the past four decades was carried out. Monthly maximum and minimum air temperature and precipitation ... ...

    Abstract A comprehensive assessment of the spatial and temporal patterns of the most common indicators of climate change and variability in the Arab world in the past four decades was carried out. Monthly maximum and minimum air temperature and precipitation amount data for the period 1980-2018 were obtained from the CHELSA project with a resolution of 1 km
    Language English
    Publishing date 2023-09-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-42499-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Sequencing Reveals miRNAs Enriched in the Developing Mouse Enteric Nervous System.

    Pai, Christopher / Sengupta, Rajarshi / Heuckeroth, Robert O

    Non-coding RNA

    2023  Volume 10, Issue 1

    Abstract: The enteric nervous system (ENS) is an essential network of neurons and glia in the bowel wall. Defects in ENS development can result in Hirschsprung disease (HSCR), a life-threatening condition characterized by severe constipation, abdominal distention, ...

    Abstract The enteric nervous system (ENS) is an essential network of neurons and glia in the bowel wall. Defects in ENS development can result in Hirschsprung disease (HSCR), a life-threatening condition characterized by severe constipation, abdominal distention, bilious vomiting, and failure to thrive. A growing body of literature connects HSCR to alterations in miRNA expression, but there are limited data on the normal miRNA landscape in the developing ENS. We sequenced small RNAs (smRNA-seq) and messenger RNAs (mRNA-seq) from ENS precursor cells of mid-gestation
    Language English
    Publishing date 2023-12-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2813993-8
    ISSN 2311-553X ; 2311-553X
    ISSN (online) 2311-553X
    ISSN 2311-553X
    DOI 10.3390/ncrna10010001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Impact of RBI's monetary policy announcements on government bond yields: evidence from the pandemic.

    Lakdawala, Aeimit / Pratap, Bhanu / Sengupta, Rajeswari

    Indian economic review

    2023  , Page(s) 1–31

    Abstract: We investigate how the bond market responded to the Reserve Bank of India's (RBI) monetary policy actions undertaken since the start of the pandemic. Our approach involves combining a narrative analysis of the media coverage together with an event-study ... ...

    Abstract We investigate how the bond market responded to the Reserve Bank of India's (RBI) monetary policy actions undertaken since the start of the pandemic. Our approach involves combining a narrative analysis of the media coverage together with an event-study framework around RBI's monetary policy announcements. We find that the RBI's actions early in the pandemic were helpful in providing an expansionary impulse to the bond market. Specifically, long-term bond interest rates would have been meaningfully higher in the early months of the pandemic if not for the actions undertaken by the RBI. These actions involved unconventional policies providing liquidity support and asset purchases. We find that some of the unconventional monetary policy actions had a substantial signaling channel component where the market perceived the announcement of an unconventional monetary policy action as representing a lower future path for the short-term policy rate. We also find that the RBI's forward guidance was more effective in the pandemic than it had been in the couple of years preceding the pandemic.
    Language English
    Publishing date 2023-05-20
    Publishing country India
    Document type Journal Article
    ZDB-ID 2658831-6
    ISSN 2520-1778 ; 0019-4670
    ISSN (online) 2520-1778
    ISSN 0019-4670
    DOI 10.1007/s41775-023-00171-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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