Sökning: "negative pressure"

Visar resultat 11 - 15 av 380 avhandlingar innehållade orden negative pressure.

  1. 11. Negative Pressure Wound Therapy. Therapy Settings and Biological Effects in Peripheral Wounds

    Författare :Ola Borgquist; Lund Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Negative pressure wound therapy; vacuum-assisted closure; wound healing;

    Sammanfattning : Negative pressure wound therapy (NPWT) promotes wound healing through several mechanisms, e.g., altered periwound blood flow, mechanical deformation of the wound edge tissue, and drainage of excess fluid and debris. LÄS MER

  3. 12. Macroscopic Volume and Free Volume of Polymer Blends and Pressure-densified Polymers

    Författare :Marcus Schmidt; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; free-volume theories; refractive index; Lorentz-Lorenz equation; loss tangent; Avrami equation; freezing fractions; copolymers; polymer blends; pressure dilatometry; Tait equation of state; free-volume distributions; pressure-densified polymers; entropy of melting; dynamic-mechanical analysis; positronium; positron annihilation; free volume; cavity size; polymers; bulk modulus; PVT; phase separation; compressibility; thermal expansivity;

    Sammanfattning : The macroscopic volume V as a function of pressure P and temperature T is obtained from PVT measurements. PVT data is sensitive to the state of polymers and changes therein. Moreover, PVT data gives access to the free-volume fraction. LÄS MER

  4. 13. Police officers under pressure : sexual and gender-based harassment, stress, and job satisfaction in Sweden

    Författare :Arian Rostami; Monica Burman; Mehdi Ghazinour; Jonas Hansson; Anna-Karin Hurtig; Magnus Sverke; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sexual harassment; Gender-based harassment; Work stress; Job satisfaction; Police officers; Work environment;

    Sammanfattning : Police officers encounter challenging and stressful situations at work, which negatively impact their health, job performance, and aspects of their lives. Regarding the gendered structure and competitive work environment of police organizations, women are under extra pressure from the pervasive gendered norms within the police organization. LÄS MER

  5. 14. Proteomic, metabolomic, and microbiome studies of blood pressure

    Författare :Yi-Ting Lin; Johan Sundström; Martin Magnusson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood pressure; hypertension; proteomics; metabolomics; microbiome; molecular epidemiology; Mendelian randomization;

    Sammanfattning : Hypertension is a major risk factor for cardiovascular disease and premature death with a substantial global economic burden. To prevent and treat hypertension, it is crucial to improve our understanding of the pathophysiological mechanisms. Hypertension is a multifactorial condition influenced both by genetic and environmental factors. LÄS MER

  7. 15. Negative Pressure Wound Therapy - Mechanisms of Action and Protecting Exposed Blood Vessels in the Wound Bed

    Författare :Erik Anesäter; Thoraxkirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Negative pressure wound therapy; wounds; complications; experimental surgery; blood flow;

    Sammanfattning : NPWT has recently been associated with severe complications and bleeding when used in wounds with exposed blood vessels. The aims of this work were to investigate the mechanisms of action of NPWT and to explore the possibility of using thin plastic discs to protect exposed blood vessels in the wound bed during NPWT. LÄS MER