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  1. Artikel: Dysmenorrhœa.

    Johnson, John M

    Atlanta medical and surgical journal

    2022  Band 12, Heft 11, Seite(n) 641–659

    Sprache Englisch
    Erscheinungsdatum 2022-07-11
    Erscheinungsland United States
    Dokumenttyp Journal Article
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: Carbuncle: Its Pathology and Treatment.

    Johnson, John M

    Atlanta medical and surgical journal

    2022  Band 8, Heft 11, Seite(n) 461–463

    Sprache Englisch
    Erscheinungsdatum 2022-07-11
    Erscheinungsland United States
    Dokumenttyp Journal Article
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: Saccharated Calomel.

    Johnson, John M

    Atlanta medical and surgical journal

    2022  Band 12, Heft 5, Seite(n) 277–286

    Sprache Englisch
    Erscheinungsdatum 2022-07-11
    Erscheinungsland United States
    Dokumenttyp Journal Article
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel: Muriated Tincture of Iron in Fluor Albus: Mode of Application-Wool Pessaries, Etc.

    Johnson, John M

    Atlanta medical and surgical journal

    2022  Band 13, Heft 11, Seite(n) 650–651

    Sprache Englisch
    Erscheinungsdatum 2022-07-11
    Erscheinungsland United States
    Dokumenttyp Journal Article
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel: Blood-Letting in Puerperal Eclampsia.

    Johnson, John M

    Atlanta medical and surgical journal

    2022  Band 14, Heft 8, Seite(n) 449–453

    Sprache Englisch
    Erscheinungsdatum 2022-07-11
    Erscheinungsland United States
    Dokumenttyp Journal Article
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel: Gonorrhœa; Its Treatment.

    Johnson, John M

    Atlanta medical and surgical journal

    2022  Band 8, Heft 11, Seite(n) 469–470

    Sprache Englisch
    Erscheinungsdatum 2022-07-13
    Erscheinungsland United States
    Dokumenttyp Journal Article
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel: Nekton and finfish use of oligohaline Phragmites australis and Spartina alterniflora marsh in Chesapeake Bay and North Carolina, USA

    Meyer, David L. / Johnson, John M. / Gill, John / Doley, Christopher

    Ocean & coastal management. 2022 Aug. 29,

    2022  

    Abstract: Oligohaline Phragmites australis and Spartina alterniflora marshes with similar physical conditions were examined within two different geographic regions: 1) related to marsh nekton and marsh-edge finfish species abundance, biomass and community ... ...

    Abstract Oligohaline Phragmites australis and Spartina alterniflora marshes with similar physical conditions were examined within two different geographic regions: 1) related to marsh nekton and marsh-edge finfish species abundance, biomass and community structure, 2) to determine whether marsh functional patterns are consistent over large-scale geographic settings, and 3) to assess consistency of nekton use for each macrophyte type between geographic regions. Few significant differences regarding abundance, biomass, community structure, and catch composition between P. australis and S. alterniflora marshes for marsh nekton and marsh-edge finfish species were observed. P. australis and S. alterniflora marshes, regardless of geographic region, provided similar functions for marsh nekton and estuarine finfish communities. However, differences between Chesapeake Bay and North Carolina geographic regions for marsh nekton use were pronounced. Significantly more nekton species utilized P. australis and S. alterniflora marshes in North Carolina versus Chesapeake Bay. Also, the abundance of seven of 12 marsh nekton species common to both regions within S. alterniflora marshes, and four of 12 species within P. australis marshes, differed significantly between regions. It is important to consider at what point differences between estuarine habitats warrant the selection of one functional habitat over another, or conversion of functional habitat for restoration of another. Instead of determinations based on one or a few species of interest, clearly defined criteria should be used to determine necessity for replacement of one habitat type for another, and these should consider ecological values and attributes necessary for ecosystem function.
    Schlagwörter Phragmites australis ; Spartina alterniflora ; biomass ; catch composition ; coastal zone management ; community structure ; ecological function ; estuaries ; fish ; habitats ; macrophytes ; marshes ; nekton ; species abundance ; Chesapeake Bay ; North Carolina
    Sprache Englisch
    Erscheinungsverlauf 2022-0829
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel
    Anmerkung Pre-press version
    ISSN 0964-5691
    DOI 10.1016/j.ocecoaman.2022.106350
    Datenquelle NAL Katalog (AGRICOLA)

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  8. Artikel: Skin vasoconstriction as a heat conservation thermoeffector.

    Johnson, John M / Kellogg, Dean L

    Handbook of clinical neurology

    2018  Band 156, Seite(n) 175–192

    Abstract: Cold exposure stimulates heat production and conservation to protect internal temperature. Heat conservation is brought about via reductions in skin blood flow. The focus, here, is an exploration of the mechanisms, particularly in humans, leading to that ...

    Abstract Cold exposure stimulates heat production and conservation to protect internal temperature. Heat conservation is brought about via reductions in skin blood flow. The focus, here, is an exploration of the mechanisms, particularly in humans, leading to that cutaneous vasoconstriction. Local skin cooling has several effects: (1) reduction of tonic nitric oxide formation by inhibiting nitric oxide synthase and element(s) downstream of the enzyme, which removes tonic vasodilator effects, yielding a relative vasoconstriction; (2) translocation of intracellular alpha-2c adrenoceptors to the vascular smooth-muscle cell membrane, enhancing adrenergic vasoconstriction; (3) increased norepinephrine release from vasoconstrictor nerves; and (4) cold-induced vasodilation, seen more clearly in anastomoses-rich glabrous skin. Cold-induced vasodilation occurs in nonglabrous skin when nitric oxide synthase or sympathetic function is blocked. Reflex responses to general body cooling complement these local effects. Sympathetic excitation leads to the increased release of norepinephrine and its cotransmitter neuropeptide Y, each of which contributes significantly to the vasoconstriction. The contributions of these two transmitters vary with aging, disease and, in women, reproductive hormone status. Interaction between local and reflex mechanisms is in part through effects on baseline and in part through removal of the inhibitory effects of nitric oxide on adrenergic vasoconstriction.
    Mesh-Begriff(e) Body Temperature Regulation/physiology ; Humans ; Skin/innervation ; Skin Temperature/physiology ; Vasoconstriction/physiology
    Sprache Englisch
    Erscheinungsdatum 2018-11-17
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Review
    ISSN 0072-9752
    ISSN 0072-9752
    DOI 10.1016/B978-0-444-63912-7.00011-4
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Responses to hyperthermia. Optimizing heat dissipation by convection and evaporation: Neural control of skin blood flow and sweating in humans.

    Smith, Caroline J / Johnson, John M

    Autonomic neuroscience : basic & clinical

    2016  Band 196, Seite(n) 25–36

    Abstract: Under normothermic, resting conditions, humans dissipate heat from the body at a rate approximately equal to heat production. Small discrepancies between heat production and heat elimination would, over time, lead to significant changes in heat storage ... ...

    Abstract Under normothermic, resting conditions, humans dissipate heat from the body at a rate approximately equal to heat production. Small discrepancies between heat production and heat elimination would, over time, lead to significant changes in heat storage and body temperature. When heat production or environmental temperature is high the challenge of maintaining heat balance is much greater. This matching of heat elimination with heat production is a function of the skin circulation facilitating heat transport to the body surface and sweating, enabling evaporative heat loss. These processes are manifestations of the autonomic control of cutaneous vasomotor and sudomotor functions and form the basis of this review. We focus on these systems in the responses to hyperthermia. In particular, the cutaneous vascular responses to heat stress and the current understanding of the neurovascular mechanisms involved. The available research regarding cutaneous active vasodilation and vasoconstriction is highlighted, with emphasis on active vasodilation as a major responder to heat stress. Involvement of the vasoconstrictor and active vasodilator controls of the skin circulation in the context of heat stress and nonthermoregulatory reflexes (blood pressure, exercise) are also considered. Autonomic involvement in the cutaneous vascular responses to direct heating and cooling of the skin are also discussed. We examine the autonomic control of sweating, including cholinergic and noncholinergic mechanisms, the local control of sweating, thermoregulatory and nonthermoregulatory reflex control and the possible relationship between sudomotor and cutaneous vasodilator function. Finally, we comment on the clinical relevance of these control schemes in conditions of autonomic dysfunction.
    Mesh-Begriff(e) Animals ; Body Temperature/physiology ; Body Temperature Regulation/physiology ; Fever/physiopathology ; Hot Temperature ; Humans ; Skin/blood supply ; Skin/innervation ; Sweating/physiology
    Sprache Englisch
    Erscheinungsdatum 2016-04
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2020105-9
    ISSN 1872-7484 ; 1566-0702
    ISSN (online) 1872-7484
    ISSN 1566-0702
    DOI 10.1016/j.autneu.2016.01.002
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel: Commentary on Viewpoint "Human experimentation: no accurate, quantitative data?".

    Johnson, John M

    Journal of applied physiology (Bethesda, Md. : 1985)

    2007  Band 102, Heft 3, Seite(n) 1292

    Mesh-Begriff(e) Animals ; Cardiovascular Physiological Phenomena ; Human Experimentation ; Humans ; Models, Animal
    Sprache Englisch
    Erscheinungsdatum 2007-03
    Erscheinungsland United States
    Dokumenttyp Comment ; Letter
    ZDB-ID 219139-8
    ISSN 1522-1601 ; 8750-7587 ; 0021-8987 ; 0161-7567
    ISSN (online) 1522-1601
    ISSN 8750-7587 ; 0021-8987 ; 0161-7567
    DOI 10.1152/japplphysiol.01391.2006
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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