Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1432-0827
    Keywords: Nasal calcitonin ; Bone resorption ; Bone formation ; Calciotropic hormones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Effects of a single dose of 200 IU of nasal salmon calcitonin (SCT) on calcium metabolism and biochemical markers of bone turnover were investigated in 12 healthy male volunteers in a randomized, placebo-controlled, crossover design. The nasal spray was given in the morning, and subsequently blood and urine samples were collected for 26 hours. There was a significant decrease in serum ionized calcium with a nadir 4 hours after administration of nasal SCT accompanied by a significant increase in serum parathyroid hormone (P = 0.01) and serum calcitriol (P = 0.04). Nasal SCT did not reduce urinary hydroxyproline/creatinine. Urinary deoxypyridinoline/creatinine was lowered significantly 2 hours after administration of nasal SCT and throughout the first 24 hours, but remained unchanged for the last 2 hours. On a 24-hour basis, urinary deoxypyridinoline/creatinine decreased from 14.1 (3.5) nmol/mmol to 11.7 (3.2) nmol/mmol after nasal SCT (P = 0.04). Nasal SCT did not change the serum levels of alkaline phosphatase, osteocalcin, and the carboxyterminal propeptide of type 1 procollagen. The results indicate that nasal SCT given as a single dose provokes a modest decrease in bone resorption lasting several hours, but leaves bone formation unaffected.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 107 (1994), S. 141-146 
    ISSN: 1437-1596
    Keywords: Ballistics ; Wound ballistics ; Yaw ; Ballistik ; Wundballistik ; Yaw
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Die Anstellwinkel von Hochgeschwindigkeitsgeschossen werden wegen ihres Einflusses auf das Taumeln des Geschosses im Ziel seit langem diskutiert. Da hierzu nur wenige unklassifizierte Berichte veröffentlicht worden sind, haben wir die Anstellwinkel von Geschossen aus den Gewehren M16A2, G3, AK-47 und AK-74 mit der Shadowgraphtechnik untersucht. Unsere Ergebnisse zeigen, daß sich die Anstellwinkel von Geschossen aus Militärgewehren nach 25 m bei weniger als 3° stabilisieren. Diese Winkel werden allgemein als bedeutungslos eingeschätzt. Die Projektile einiger moderner Hochgeschwindigkeitsgewehre wie M16A2 und AK-74 können im ersten Teil der Flugbahn relativ große Anstellwinkel erreichen. Unsere Resultate bestätigen die Meinung zeitgenössischer Autoren und sollten dazu beitragen, die Kontroversen auf diesem Gebiet der Wundballistik aufzulösen.
    Notes: Abstract The yaw angle in flight of high velocity bullets has been discussed for a number of years, due to its contribution to the tumbling of the bullet in the target. Since few unclassified reports of contemporary bullets are available, we investigated the yaw angles of the bullets used in the M16A2, G3, AK-47 and AK-74 rifles by the shadowgraph technique. Our results show that bullets from military rifles tend to stabilize at less than 3° within 25 m, and this angle has been thought to be insignificant in the production of gunshot wounds. Bullets from some modern small calibre high velocity rifles such as the M16A2 and the AK-74 can have quite large yaw angles in their initial flight. The results, which confirm the opinion of contemporary writers, should settle the controversy in this area of wound ballistics.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...