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  1. Buch ; Online: Rethinking Social Media and Extremism

    Leitch, Shirley / Pickering, Paul

    2022  

    Schlagwörter Internet: general works ; Social networking ; online extremism ; social media ; digital technology ; cybercrime ; electoral fraud ; fake news ; far-right violence ; hate speech
    Sprache 0|e
    Umfang 1 electronic resource (194 pages)
    Verlag ANU Press
    Erscheinungsort Canberra
    Dokumenttyp Buch ; Online
    Anmerkung English ; Open Access
    HBZ-ID HT021613792
    ISBN 9781760465247 ; 1760465240
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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  2. Artikel ; Online: Parvalbumin Interneuron Dysfunction in Neurological Disorders: Focus on Epilepsy and Alzheimer's Disease.

    Leitch, Beulah

    International journal of molecular sciences

    2024  Band 25, Heft 10

    Abstract: Parvalbumin expressing (PV+) GABAergic interneurons are fast spiking neurons that provide powerful but relatively short-lived inhibition to principal excitatory cells in the brain. They play a vital role in feedforward and feedback synaptic inhibition, ... ...

    Abstract Parvalbumin expressing (PV+) GABAergic interneurons are fast spiking neurons that provide powerful but relatively short-lived inhibition to principal excitatory cells in the brain. They play a vital role in feedforward and feedback synaptic inhibition, preventing run away excitation in neural networks. Hence, their dysfunction can lead to hyperexcitability and increased susceptibility to seizures. PV+ interneurons are also key players in generating gamma oscillations, which are synchronized neural oscillations associated with various cognitive functions. PV+ interneuron are particularly vulnerable to aging and their degeneration has been associated with cognitive decline and memory impairment in dementia and Alzheimer's disease (AD). Overall, dysfunction of PV+ interneurons disrupts the normal excitatory/inhibitory balance within specific neurocircuits in the brain and thus has been linked to a wide range of neurodevelopmental and neuropsychiatric disorders. This review focuses on the role of dysfunctional PV+ inhibitory interneurons in the generation of epileptic seizures and cognitive impairment and their potential as targets in the design of future therapeutic strategies to treat these disorders. Recent research using cutting-edge optogenetic and chemogenetic technologies has demonstrated that they can be selectively manipulated to control seizures and restore the balance of neural activity in the brains of animal models. This suggests that PV+ interneurons could be important targets in developing future treatments for patients with epilepsy and comorbid disorders, such as AD, where seizures and cognitive decline are directly linked to specific PV+ interneuron deficits.
    Mesh-Begriff(e) Humans ; Interneurons/metabolism ; Interneurons/physiology ; Alzheimer Disease/metabolism ; Alzheimer Disease/physiopathology ; Parvalbumins/metabolism ; Animals ; Epilepsy/physiopathology ; Epilepsy/metabolism ; GABAergic Neurons/metabolism ; GABAergic Neurons/physiology ; Brain/metabolism ; Brain/physiopathology
    Chemische Substanzen Parvalbumins
    Sprache Englisch
    Erscheinungsdatum 2024-05-19
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms25105549
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: The Impact of Glutamatergic Synapse Dysfunction in the Corticothalamocortical Network on Absence Seizure Generation.

    Leitch, Beulah

    Frontiers in molecular neuroscience

    2022  Band 15, Seite(n) 836255

    Abstract: Childhood absence epilepsy (CAE) is the most common pediatric epilepsy affecting 10-18% of all children with epilepsy. It is genetic in origin and the result of dysfunction within the corticothalamocortical (CTC) circuitry. Network dysfunction may arise ... ...

    Abstract Childhood absence epilepsy (CAE) is the most common pediatric epilepsy affecting 10-18% of all children with epilepsy. It is genetic in origin and the result of dysfunction within the corticothalamocortical (CTC) circuitry. Network dysfunction may arise from multifactorial mechanisms in patients from different genetic backgrounds and thus account for the variability in patient response to currently available anti-epileptic drugs; 30% of children with absence seizures are pharmaco-resistant. This review considers the impact of deficits in AMPA receptor-mediated excitation of feed-forward inhibition (FFI) in the CTC, on absence seizure generation. AMPA receptors are glutamate activated ion channels and are responsible for most of the fast excitatory synaptic transmission throughout the CNS. In the stargazer mouse model of absence epilepsy, the genetic mutation is in stargazin, a transmembrane AMPA receptor trafficking protein (TARP). This leads to a defect in AMPA receptor insertion into synapses in parvalbumin-containing (PV+) inhibitory interneurons in the somatosensory cortex and thalamus. Mutation in the
    Sprache Englisch
    Erscheinungsdatum 2022-02-14
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2452967-9
    ISSN 1662-5099
    ISSN 1662-5099
    DOI 10.3389/fnmol.2022.836255
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Genome evolution: On the nature of trade-offs with polyploidy and endopolyploidy.

    Leitch, Andrew R / Leitch, Ilia J

    Current biology : CB

    2022  Band 32, Heft 18, Seite(n) R952–R954

    Abstract: A new study uncovers a novel trade-off in polyploid plants. While the larger cells of polyploids benefit from increased cell storage and water retention, this comes at the cost of reduced structural stability, potentially impacting survival. ...

    Abstract A new study uncovers a novel trade-off in polyploid plants. While the larger cells of polyploids benefit from increased cell storage and water retention, this comes at the cost of reduced structural stability, potentially impacting survival.
    Mesh-Begriff(e) Genome, Plant ; Plants/genetics ; Polyploidy ; Water
    Chemische Substanzen Water (059QF0KO0R)
    Sprache Englisch
    Erscheinungsdatum 2022-07-08
    Erscheinungsland England
    Dokumenttyp Journal Article ; Comment
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2022.08.012
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel: Recent Observations on the Treatment of Gonorrhea.

    Leitch, Thomas C

    Atlanta journal-record of medicine

    2022  Band 2, Heft 11, Seite(n) 737–742

    Sprache Englisch
    Erscheinungsdatum 2022-08-26
    Erscheinungsland United States
    Dokumenttyp Journal Article
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Buch ; Online: Romance Rewritten : The Evolution of Middle English Romance. A Tribute to Helen Cooper

    Archibald, Elizabeth / Leitch, Megan / Saunders, Corinne

    2018  

    Schlagwörter Literature & literary studies ; Literature; European and World Literature: General Interest
    Umfang 1 electronic resource (297 pages)
    Verlag Boydell and Brewer
    Dokumenttyp Buch ; Online
    Anmerkung English ; Open Access
    HBZ-ID HT021047472
    ISBN 9781787443341 ; 1787443345
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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  7. Artikel ; Online: "BIFloraExplorer": A Taxonomic, Genetic, and Ecological Data Resource for the Vascular Plants of Britain and Ireland.

    Henniges, Marie C / Leitch, Andrew R / Leitch, Ilia J

    Methods in molecular biology (Clifton, N.J.)

    2023  Band 2703, Seite(n) 83–90

    Abstract: The vascular flora of Britain and Ireland is a historically well-documented and clearly delimited study system that offers itself to large-scale analyses of ecology and species assemblages. However, such analyses require clean, curated, and taxonomically ...

    Abstract The vascular flora of Britain and Ireland is a historically well-documented and clearly delimited study system that offers itself to large-scale analyses of ecology and species assemblages. However, such analyses require clean, curated, and taxonomically resolved data, which are often unavailable. In this chapter, we describe how to access and use a key data resource that combines a taxonomically stable species list with genetic data (genome size, chromosome counts, and DNA barcode information), ecological information (such as life-form, realized niche description, and geographic origin) and distribution records. The data resource enables and encourages the study of natural ecological and evolutionary patterns and processes within the vascular flora of Britain and Ireland.
    Mesh-Begriff(e) Ireland ; United Kingdom ; Tracheophyta ; Biological Evolution ; Genome Size
    Sprache Englisch
    Erscheinungsdatum 2023-08-18
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-0716-3389-2_7
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Time to Move Forward: Resilience and Trauma-Informed Care.

    Leitch, Laurie / McCaw, Brigid

    The Permanente journal

    2023  Band 28, Heft 1, Seite(n) 188–192

    Mesh-Begriff(e) Humans ; Resilience, Psychological
    Sprache Englisch
    Erscheinungsdatum 2023-10-20
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2062823-7
    ISSN 1552-5775 ; 1552-5775
    ISSN (online) 1552-5775
    ISSN 1552-5775
    DOI 10.7812/TPP/23.076
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Thermodynamics of hybrid quantum rotor devices.

    Leitch, Heather / Hammam, Kenza / De Chiara, Gabriele

    Physical review. E

    2024  Band 109, Heft 2-1, Seite(n) 24108

    Abstract: We investigate the thermodynamics of a hybrid quantum device consisting of two qubits collectively interacting with a quantum rotor and coupled dissipatively to two equilibrium reservoirs at different temperatures. By modeling the dynamics and the ... ...

    Abstract We investigate the thermodynamics of a hybrid quantum device consisting of two qubits collectively interacting with a quantum rotor and coupled dissipatively to two equilibrium reservoirs at different temperatures. By modeling the dynamics and the resulting steady state of the system using a collision model, we identify the functioning of the device as a thermal engine, a refrigerator, or an accelerator. In addition, we also look into the device's capacity to operate as a heat rectifier and optimize both the rectification coefficient and the heat flow simultaneously. Drawing an analogy to heat rectification and since we are interested in the conversion of energy into the rotor's kinetic energy, we introduce the concept of angular momentum rectification, which may be employed to control work extraction through an external load.
    Sprache Englisch
    Erscheinungsdatum 2024-03-15
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2844562-4
    ISSN 2470-0053 ; 2470-0045
    ISSN (online) 2470-0053
    ISSN 2470-0045
    DOI 10.1103/PhysRevE.109.024108
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Variations in touch representation in the hummingbird and zebra finch forebrain.

    Gaede, Andrea H / Wu, Pei-Hsuan / Leitch, Duncan B

    Current biology : CB

    2024  

    Abstract: Somatosensation is essential for animals to perceive the external world through touch, allowing them to detect physical contact, temperature, pain, and body position. Studies on rodent vibrissae have highlighted the organization and processing in ... ...

    Abstract Somatosensation is essential for animals to perceive the external world through touch, allowing them to detect physical contact, temperature, pain, and body position. Studies on rodent vibrissae have highlighted the organization and processing in mammalian somatosensory pathways.
    Sprache Englisch
    Erscheinungsdatum 2024-05-24
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2024.04.081
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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