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  1. No Access

    Article

    Probestellungen im Klinikalltag

    Medizintechnische Geräte (MTG) vor dem Kauf von Herstellern auszuleihen, um sie unter Alltagsbedingungen zu testen, ist als „Probestellung“ in den Sprachgebrauch eingegangen. Mittels dieser Pilotstudie soll er...

    Dr. P. Gonser, U. Matern in Der Chirurg (2014)

  2. No Access

    Article

    Ergonomics of disposable handles for minimally invasive surgery

    The ergonomic deficiencies of currently available minimally invasive surgery (MIS) instrument handles have been addressed in many studies. In this study, a new ergonomic pistol handle concept, realized as a pr...

    D. Büchel, R. Mårvik, B. Hallabrin, U. Matern in Surgical Endoscopy (2010)

  3. No Access

    Article

    Biosynthesis of coumarins in plants: a major pathway still to be unravelled for cytochrome P450 enzymes

    Coumarins (1,2-benzopyrones) are ubiquitously found in higher plants where they originate from the phenylpropanoid pathway. They contribute essentially to the persistence of plants being involved in processes ...

    F. Bourgaud, A. Hehn, R. Larbat, S. Doerper, E. Gontier… in Phytochemistry Reviews (2006)

  4. No Access

    Article

    Ergonomic testing of two different types of handles via virtual reality simulation

    Ergonomics in laparoscopic surgery is an unsolved problem. Deficiencies of the instrument handles are well-known and described in several reports and studies. Today, virtual training modules for laparoscopic s...

    U. Matern, S. Koneczny, M. Tedeus, K. Dietz… in Surgical Endoscopy And Other Interventiona… (2005)

  5. No Access

    Article

    Monitor position in laparoscopic surgery

    One of the key problems in laparoscopy is the ergonomic positioning of the monitor. In this study we tested task performance and muscle strain of subjects in relation to monitor position during laparoscopic su...

    U. Matern, M. Faist, K. Kehl, C. Giebmeyer… in Surgical Endoscopy And Other Interventiona… (2005)

  6. No Access

    Article

    Ergonomic aspects of five different types of laparoscopic instrument handles under dynamic conditions with respect to specific laparoscopic tasks: An electromyographic-based study

    The ergonomic deficiencies of various minimally invasive surgery (MIS) instrument handles are well-known. In the past, many studies have been performed to gain a better understanding of ergonomics in MIS. The ...

    U. Matern, G. Kuttler, C. Giebmeyer… in Surgical Endoscopy And Other Interventiona… (2004)

  7. No Access

    Article

    Ergonomic aspects of four different types of laparoscopic instrument handles with respect to elbow angle

    Background: Only few studies have tested different ergonomic aspects of the working posture assumed by laparoscopic surgeons. Although no experimental data are available for a laparoscopic setting, a working p...

    U. Matern, C. Giebmeyer, R. Bergmann, P. Waller, M. Faist in Surgical Endoscopy (2002)

  8. No Access

    Chapter and Conference Paper

    Muskelaktivität und Arbeitsqualität in Abhängigkeit von der Monitorposition bei laparoskopischen Eingriffen

    U. Matern, K. Kehl, C. Giebmeyer, M. Faist… in Digitale Revolution in der Chirurgie (2002)

  9. No Access

    Article

    MIS instruments

    Background: Various handles are available for use in minimally invasive surgery. Nonergonomic positioning of the hand and fingers can lead to pressure areas, nerve irritation, and rapid fatigue. ...

    U. Matern, M. Eichenlaub, P. Waller, K.-D. Rückauer in Surgical Endoscopy (1999)

  10. No Access

    Article

    Instruments for minimally invasive surgery

    Although the advantages of minimally invasive surgery (MIS) have been clearly established for the patient, the surgeon must cope with disadvantages caused by unergonomic instrument handles. Pressure areas and...

    U. Matern, P. Waller in Surgical Endoscopy (1999)

  11. No Access

    Article

    Emergency laparoscopy

    Background: Laparoscopic diagnosis of intestinal ischemia is difficult. Dark-colored bowels are not a reliable indicator for infarction, because there is no correlation between color and oxygenation. The same pi...

    U. Matern, J. Haberstroh, A. El Saman, E. Pauly, R. Salm… in Surgical Endoscopy (1996)

  12. No Access

    Chapter

    In Vitro Induction of Resistance to Alternaria Leaf Blight Disease in Carthamus tinctorius L. (Safflower)

    Safflower (Carthamus tinctorius L.) is an annual or biennial plant of the family Asteraceae. The genus Carthamus consists of some 60 species which are native to the Canary Islands and the Mediterranean coasts fro...

    R. E. Kneusel, U. Matern in Somaclonal Variation in Crop Improvement II (1996)

  13. No Access

    Chapter

    Dianthus Species (Carnation): In Vitro Culture and the Biosynthesis of Dianthalexin and Other Secondary Metabolites

    The genus Dianthus comprises a relatively large group of some 300 species, which have attracted attention because of spectacular flower color combinations ranging from white to yellow, red, and deep purple (Helm ...

    U. Matern in Medicinal and Aromatic Plants VII (1994)

  14. No Access

    Article

    Nontoxic and toxic oligopeptides with D-amino acids and unusual residues in Microcystis aeruginosa PCC 7806

    Toxic and nontoxic peptides were isolated from the cyanobacterium Microcystis aeruginosa PCC 7806 by a procedure including extraction of cells with water-saturated 1-butanol, chromatography of the extract on sili...

    I. M. Birk, R. Dierstein, I. Kaiser, U. Matern, W. A. König… in Archives of Microbiology (1989)

  15. No Access

    Chapter and Conference Paper

    Metabolism of the Phytotoxin Brefeldin A in Safflower (Carthamus Tinctorius L.) Plants

    Safflower (Carthamus tinctorius L.) is one of the most valuable vegetable oil crops due to the unusually high unsaturated oil content of its seeds. The accumulation of such triacylglycerols proceeds via formation...

    U. Matern, K. G. Tietjen in Phytotoxins and Plant Pathogenesis (1989)

  16. No Access

    Article

    Abstracts of Papers Presented at The Bat-Sheva Seminar on Host — Fungus Interaction

    A. M. Mayer, Y. Henis, J. G. H. Wessels, Talma Katan, Y. Koltin… in Phytoparasitica (1988)

  17. No Access

    Chapter

    In Vitro Production of Potatoes Bearing Resistance to Fungal Diseases

    In strict taxonomic terms, Solarium tuberosum L. does not describe a species but summarizes rather a collection of cultivars derived from the South American species S. andigenum and S. tuberosum, which are still ...

    U. Matern, G. A. Strobel in Potato (1987)

  18. No Access

    Article

    Efficient uptake of flavonoids into parsley (Petroselinum hortense) vacuoles requires acylated glycosides

    Vacuoles were prepared from cultured parsley cells by polyamine-induced rupture of protoplasts. Acid-phosphatase activity, associated exclusively with the vacuoles, served for determination of vacuole yield in...

    U. Matern, C. Reichenbach, W. Heller in Planta (1986)

  19. No Access

    Article

    Rapid effect of an elicitor on uptake and intracellular distribution of phosphate in cultured parsley cells

    Cell suspension cultures of parsley (Petroselinum hortense) grown in synthetic medium take up most of the inorganic phosphate supplied with the medium within the initial 5 days after transfer. Nuclear magnetic re...

    H. Strasser, K. G. Tietjen, K. Himmelspach, U. Matern in Plant Cell Reports (1983)