Results 311 to 320 of about 131,103 (339)
Some of the next articles are maybe not open access.

[Optimization of noni callus induction and establishment of callus suspension system].

Sheng wu gong cheng xue bao = Chinese journal of biotechnology, 2019
The aim of the study was to obtain the secondary metabolites in the stem segment of noni and to establish genetic transformation system. The stem segments (no axillary buds) of noni were used as explants to induce the callus, and then to establish the cell suspension system. The factors affecting callus induction and cell suspension were studied.
Dandan Jia   +4 more
openaire   +2 more sources

Breakdown of phosphatidylinositol in soybean callus [PDF]

open access: possiblePlanta, 1986
We have investigated the breakdown of membrane-bound phosphatidylinositol (PI) in homogenates of soybean (Glycine max) callus. The breakdown of PI was stimulated by the detergent deoxycholate. At pH 7.0 and 1·gl(-1) of deoxycholate the loss of PI was rapid and extensive: more than 80% was broken down within 10 min.
R. J. A. Connett, D. E. Hanke
openaire   +2 more sources

The effect of micromovement on callus formation

Journal of Orthopaedic Science, 2001
Micromovement at fracture sites is known to promote callus formation and bridging of the bony fragments. The present study was conducted to identify the suitable amount of micromovement, and to analyze the location and timing of callus proliferation. A standardized transverse osteotomy, in the right metatarsus of 32 sheep, was used as a fracture model.
Peter Augat   +4 more
openaire   +3 more sources

Aspen Callus

1973
Publisher Summary This chapter discusses the culturing of aspen callus. It discusses that firm white callus from aspen trees has been initiated and maintained in an actively growing condition since 1961 at The Institute of Paper Chemistry. Seven species of Populus have been cultured, as well as numerous hybrids and polyploids.
M.C. Mathes, L.L. Winton
openaire   +2 more sources

Callus distraction in the hand skeleton

Injury, 2000
From 1992 to 1996, 27 patients with traumatic amputations or malformations underwent lengthening of thumb and fingers. A total of 36 procedures were carried out. In several cases, deepening of the web space or bone transplantations proved to be necessary to improve general function or to compensate for missing bone structure. Complications included pin-
K.-D. Rudolf   +2 more
openaire   +3 more sources

First Metatarsal Callus Distraction

Journal of the American Podiatric Medical Association, 2008
We describe the results in seven patients who underwent surgery to lengthen a short first metatarsal via callus distraction. The increased length achieved ranged from 13 to 48 mm, with an average of 20.2 mm. The technique was successful in restoring length and improving symptoms, although several complications were encountered.
Alan S Banks, J. Christopher Benson
openaire   +3 more sources

Callus Induction in Grasses [PDF]

open access: possible, 1989
The use of tissue culture techniques in the study of growth, metabolism, and differentiation has been widely developed for the dicotyledons, but the monocots, especially the grasses, have received little attention. One reason for this was that until recently the establishment of in vitro cultures of monocots was quite difficult.
openaire   +1 more source

STUDIES ON THE CALCIFICATION OF CALLUS

Archives of Surgery, 1923
In a previously published article, I1reported the results of experiments which I had performed to determine the effect of variations in the blood phosphorus on the rate of calcification of callus in fractures. These experiments were made on the basis of reactions in vitro and with recent work on rickets as a background; and they were entirely negative.
openaire   +2 more sources

Acoustic emission properties of callus

Medical & Biological Engineering & Computing, 1981
11 New Zealand white rabbits with 45 degree midshaft oblique osteotomies were stressed in shear while monitoring acoustic emission events. The ringdown counting method demonstrated a reasonably reproducible pattern when counting events against load; that is, each fracture remained essentially quiet until over 50% of load to failure had been applied ...
Berg E, Nicholls Pj, Nicholls Pj
openaire   +3 more sources

Lengthening of the Forearm by Callus Distraction

Journal of Hand Surgery, 1996
Ten patients aged 3 to 13 years (mean, 9 years and 7 months) underwent forearm lengthening by callotasis. The indications for lengthening were shortening and/or deformity of the forearm due to exostosis of the distal ulna in five cases, enchondroma of the distal ulna in one, growth disturbance after fracture of the distal radius in one, radial club ...
M. Okamoto   +3 more
openaire   +3 more sources

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