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  • 1
    Online Resource
    Online Resource
    Cardiovascular Psychophysiology : Current Issues in Response Mechanisms, Biofeedback and Methodology. (2007)
    Somerset :Taylor & Francis Group,
    Details
    Keywords: Operant conditioning. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (677 pages)
    Edition: 1st ed.
    ISBN: 9781351530071
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=5145012
    DDC: 612.1/7
    Language: English
    Note: Cover -- Half Title -- Title Page -- Copyright Page -- Contents -- Contributors -- Introduction -- I: Cardiovascular Function and Measurement -- 1 Mechanisms of the Cardiovascular Responses to Environmental Stressors -- 2 A Selective Review of Central Neural Pathways Involved in Cardiovascular Control -- 3 Psychophysiology of Peripheral Vascular Changes -- 4 Indirect Indices of Contractile Force -- 5 The Indirect Recording of Human Blood Pressure -- 6 Techniques for Long-Term Direct Measurements of Cardiovascular Variables -- Il: Cardiovascular Function - Experimental Studies -- 7 Analysis of the Final Common Path for Heart Rate Conditioning -- 8 The Cardiac-Somatic Interaction -- 9 Comparative Psychophysiology of the Electrodermal and Cardiac Control Systems -- 10 The Relationship Between Learned and Unlearned Cardiovascular Responses -- 11 Sympathetic and Parasympathetic Activity During Behavioral Hypertension in the Squirrel Monkey -- Ill: Animal Operant Conditioning -- 12 Operant Autonomic Conditioning: The Analysis of Response Mechanisms -- 13 Respiratory and Somatomotor Factors Associated with Operant Conditioning of Cardiovascular Responses in Curarized Rats -- 14 Some Critical Methodological Variables Involved in Visceral Learning -- 15 The Learning of Autonomie Responses by Curarized Animals -- 16 Visceral Learning: Recent Difficulties with Curarized Rats and Significant Problems for Human Research -- 17 Comparative Studies of Operant Electrodermal and Heart Rate Conditioning in Curarized Rats -- 18 Some Problems in the Use of Neuromuscular Blockade -- IV: Human Operant Conditioning -- 19 A General Model of Voluntary Control Applied to the Phenomena of Learned Cardiovascular Change -- 20 Learned Control of Human Heart Rate in a Computer Directed Environment. , 21 Toward a Theory of Voluntary Control of Response Patterns in the Cardiovascular System -- 22 Operant-Feedback Control of Human Blood Pressure: Some Clinical Issues -- 23 Application of Operant Conditioning Techniques to the Control of the Cardiac Arrhythmias -- V: Heart Rate - Attentional and Motivational Processes -- 24 Cardiac Conditioning and Orienting in the Infant -- 25 The Motivational Significance of Heart Rate -- 26 Studies of Heart Rate and Other Bodily Processes in Sensorimotor Behavior -- Summary -- Bibliography -- Author Index -- Subject Index.
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  • 2
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    Temperature thresholds of ecosystem respiration at a global scale (2021)
    In:  Nature Ecology & Evolution
    Details
    Publication Date: 2021-04-29
    Description: Ecosystem respiration is a major component of the global terrestrial carbon cycle and is strongly influenced by temperature. The global extent of the temperature–ecosystem respiration relationship, however, has not been fully explored. Here, we test linear and threshold models of ecosystem respiration across 210 globally distributed eddy covariance sites over an extensive temperature range. We find thresholds to the global temperature–ecosystem respiration relationship at high and low air temperatures and mid soil temperatures, which represent transitions in the temperature dependence and sensitivity of ecosystem respiration. Annual ecosystem respiration rates show a markedly reduced temperature dependence and sensitivity compared to half-hourly rates, and a single mid-temperature threshold for both air and soil temperature. Our study indicates a distinction in the influence of environmental factors, including temperature, on ecosystem respiration between latitudinal and climate gradients at short (half-hourly) and long (annual) timescales. Such climatological differences in the temperature sensitivity of ecosystem respiration have important consequences for the terrestrial net carbon sink under ongoing climate change.
    Language: English
    Type: info:eu-repo/semantics/article
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  • 3
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    Latent heat exchange in the boreal and arctic biomes (2014)
    In:  Global Change Biology
    Details
    Publication Date: 2020-02-12
    Type: info:eu-repo/semantics/article
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  • 4
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    Memory effects of climate and vegetation affecting net ecosystem CO2 fluxes in global forests (2019)
    In:  Plos One
    Details
    Publication Date: 2022-02-16
    Type: info:eu-repo/semantics/article
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  • 5
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    Quantifying the effect of forest age in annual net forest carbon balance (2018)
    In:  Environmental Research Letters
    Details
    Publication Date: 2022-03-14
    Type: info:eu-repo/semantics/article
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  • 6
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    Characterising catchment water storage under different land covers using multiple methods: Informing modelling and natural flood management (2023)
    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Details
    Publication Date: 2023-06-13
    Description: A key assumption of `natural flood management’ (NFM) and catchment restoration schemes is that land use is a major control of runoff. To assess the effectiveness of these schemes requires understanding of the influence of land use change on catchment water storage and mixing. However, few NFM schemes are resourced to also investigate the underpinning hydrological processes. This study combined hydrometric, isotopic and geochemical water properties to investigate land cover controls on catchment runoff and water storage in nine nested catchments within a 67 km〈sup〉2〈/sup〉 managed upland catchment in southern Scotland, UK. Forest cover in the sub-catchments ranged from 0.5 to 94%.Sub-catchment dynamic storage characterised from hydrometric data using recession analysis was low but variable (16–200 mm). Mean transit times estimated from isotopic data were 134–370 days and groundwater fractions estimated from end member mixing analysis based on acid neutralising capacity (ANC) were 0.20–0.52 of annual stream runoff. Correlation of measures of catchment water storage and mixing with land cover, topographic, soil and geological catchment attributes showed significant positive correlations with soil hydraulic properties, whilst percentage forest cover was inversely correlated. The results highlight the importance of understanding dominant controls on water storage in target catchments when using tree planting as a flood management strategy. The isotopic and ANC data are also being integrated into hydrological modelling of the catchment to constrain the number of potential models and reduce model equifinality.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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  • 7
    Electronic Resource
    Electronic Resource
    Cosmetic efficacy claims in vitro using a three-dimensional human skin model (2001)
    Oxford, UK : Blackwell Science, Ltd
    International journal of cosmetic science 23 (2001), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Synopsis A tissue engineered human skin equivalent is successfully used for the testing of raw materials and cosmetic formulations. This reconstructed skin is supported by a collagen-glycosaminoglycan-chitosan biopolymer in which human keratinocytes and dermal fibroblasts were co-cultured to form a tissue that closely reproduces the in vivo architecture of normal human skin and takes into account the complex interactions between epidermis and dermis. On the other hand, dermal and epidermal responses can be assessed separately in the dermal or skin equivalent.The three-dimensional model has important advantages compared to monolayer cell cultures and epidermis models in efficacy testing: (i) the possibility of long-term cultivation with repeated application of cream formulations containing bioactives and (ii) the similarity to human skin concerning the interaction between dermis and epidermis. These similarities include the expression of keratinocyte differentiation markers such as cytokeratin 10, filaggrin and transglutaminase, as well as proteins of the basal lamina (laminin, collagen type IV) and extracellular matrix proteins such as elastin.The efficacy of selected bioactives was determined using different endpoints, for example, stimulation of collagen synthesis in the dermal and skin equivalents was shown in comparison to vitamin C as a positive control. On skin equivalents using immunofluorescence techniques we also demonstrated stimulation of the differentiation marker filaggrin, which is important for skin moisturization. The results could be used for claim substantiation, e.g. for the treatment of dry and aged skin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1467-2494.2001.00098.x
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    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    High-speed signal averaging system for periodic signals (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 3191-3195 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A high-speed emitter coupled logic system for fast averaging is described. This system may be used to extract signals from broadband background noise, while preserving harmonic content. Each captured waveform may consist of up to 1024 sample points, and up to 16 kilowaveforms may be accumulated in one cycle. A 20 kilowaveform per second averaging rate is achieved on signals in a 20-kHz to 10-MHz band. The system is used to process the intermediate frequency output of an electro-optic sampling probe in order to recover 14.4-GHz, nonsinusoidal, periodic waveforms from a GaAs integrated circuit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142576
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Crystalline Vitamin B1 from Natural Sources (1937)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 59 (1937), S. 1395-1399 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01286a070
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Using neutral metastable argon atoms and contamination lithography to form nanostructures in silicon, silicon dioxide, and gold (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 2773-2775 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This letter describes the fabrication of ∼80 nm structures in silicon, silicon dioxide, and gold substrates by exposing the substrates to a beam of metastable argon atoms in the presence of dilute vapors of trimethylpentaphenyltrisiloxane, the dominant constituent of diffusion pump oil used in these experiments. The atoms release their internal energy upon contacting the siloxanes physisorbed on the surface of the substrate, and this release causes the formation of a carbon-based resist. The atomic beam was patterned by a silicon nitride membrane, and the pattern formed in the resist material was transferred to the substrates by chemical etching. Simultaneous exposure of large areas (44 cm2) was also demonstrated. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.117671
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