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https://www.readbyqxmd.com/read/25706174/-treatment-of-basal-joint-osteoarthritis-by-swanson-s-trapezium-implant-arthroplasty
#1
A Zschöck-Holle, M Reik, O Wölfle, M Sauerbier
BACKGROUND: Goal of the present study was the evaluation of clinical and radiological results after treatment of the first carpometacarpal joint by trapezium resection and implantation of a Swanson silicone prosthesis by means of a retrospetive study. However, up to now, only a few long-term data for this surgical technique are available. METHODS AND PATIENTS: Retrospectively the results of 100 trapezium resections in 72 patients with subsequent joint replacement by a Swanson silicone prosthesis have been followed up over 8...
February 2015: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/25650778/-results-after-distraction-arthroplasty-according-to-bufalini-and-perugia-in-early-stages-of-trapeziometacarpal-osteoarthritis
#2
Lukas Fatzer, E Soleman, T Sanchez
BACKGOUND: A distraction arthroplasty of the trapeziometacarpal joint was introduced by Bufalini and Perugia for the treatment of the early stages of carpometacarpal osteoarthritis. Our retrospective study presents the results of this technique. Thereby, a tendon graft anchored to the distal second metacarpal is fixed at the base of the first metacarpal, keeping it in distraction. MATERIAL AND METHODS: 10 distraction arthroplasties were performed in 9 patients with carpometacarpal osteoarthritis stage I and II of the thumb after unsuccessful conservative therapy...
February 2015: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/24257849/plant-regeneration-via-somatic-embryogenesis-in-sugarcane
#3
B S Ahloowalia, A Maretzki
Plants, regenerated from callus cultures of sugarcane (Saccharum officinarum L.) clone IJ76-316, originated through somatic embryogenesis. Callus cultures were established from primordial leaves and apical meristems on Murashige and Skoog medium (MS) supplemented with 3 mg 1(-1) 2,4-dichlorophenoxy acetic acid and 100 ml 1(-1) coconut water (MSC3). Nodular calli formed within 2 weeks of culture. Calli were maintained on MSC3 medium by transfer every 3 to 4 weeks. Somatic embryogenesis occurred after 10 weeks culture of callus on MSC3 medium...
February 1983: Plant Cell Reports
https://www.readbyqxmd.com/read/23425699/reduction-of-ferrylmyoglobin-by-hydrogen-sulfide-kinetics-in-relation-to-meat-greening
#4
Silvia H Libardi, Helene Pindstrup, Daniel R Cardoso, Leif H Skibsted
The hypervalent meat pigment ferrylmyoglobin, MbFe(IV)═O, characteristic for oxidatively stressed meat and known to initiate protein cross-linking, was found to be reduced by hydrogen sulfide to yield sulfmyoglobin. Horse heart myoglobin, void of cysteine, was used to avoid possible interference from protein thiols. For aqueous solution, the reactions were found to be second-order, and an apparent acid catalysis could be quantitatively accounted for in terms of a fast reaction between protonated ferrylmyoglobin, MbFe(IV)═O,H(+), and hydrogen sulfide, H2S (k2 = (2...
March 20, 2013: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/20722359/novel-melt-processable-poly-ether-ether-ketone-peek-inorganic-fullerene-like-ws-2-nanoparticles-for-critical-applications
#5
Mohammed Naffakh, Ana M Díez-Pascual, Carlos Marco, Marián A Gómez, Ignacio Jiménez
The combination of high-performance thermoplastic poly(ether ether ketone) (PEEK) with inorganic fullerene-like tungsten disulfide (IF-WS(2)) nanoparticles offers an attractive way to combine the merits of organic and inorganic materials into novel polymer nanocomposite materials. Here, we report the processing of novel PEEK/IF-WS(2) nanocomposites, which overcome the nanoparticle agglomerate formation and provide PEEK-particle interactions. The IF-WS(2) nanoparticles do not require exfoliation or modification, making it possible to obtain stronger, lighter materials without the complexity and processing cost associated with these treatments...
September 9, 2010: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/19384487/a-study-of-grip-endurance-and-strengh-in-different-elbow-positions
#6
A J Shyam Kumar, V Parmar, S Ahmed, S Kar, W M Harper
BACKGROUND: The aim of our study was twofold. The first was to investigate the optimum position of the elbow while measuring grip endurance. The second was to investigate the optimum position of the elbow while measuring peak grip strength. The American Society of Hand Therapists advocate estimation of grip strength with the elbow flexed at 90 degrees with the subject in the sitting position . As far as we are aware, there have been no reports in English literature regarding studies done to evaluate the position of the elbow while measuring grip endurance...
December 2008: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/18966492/preconcentration-and-analysis-of-gold-from-cyanide-solutions-with-the-use-of-a-microcolumn-packed-with-the-phosphine-oxide-cyanex-921
#7
A G Coedo, M T Dorado, F J Alguacil, I Padilla
The phosphine oxide Cyanex 921 (tri-n-octylphosphine oxide) was found to be a very efficient extradant for gold from aurocyanide aqueous solutions. A system comprising a microcolumn packed with this new reagent was developed for the separation and enrichment of gold. Because of the high selectivity of the developed system it is possible to analyze gold in the presence of an excess of other metals and/or in high ionic strengh solutions.
March 1996: Talanta
https://www.readbyqxmd.com/read/17679856/alloplasty-of-the-humeral-joint
#8
Andrzej Górecki, Sławomir Struzik
Background. Since 1980's, shoulder arthroplasty has become more oftenly performed procedure, and for severe comminuted fractures of proximal humerus (fou r- fragmented fractures, according to Neer's classification) has become first - line therapeutic option. At the beginnig of 90's, contemporary prinicples of shoulder arthroplasty were introduced. It is assumed that 4 mechanical parameters, i.e. range of motion, joint stability, strengh and smoothness of prosthesis components contribute to shoulder function, and we sholud reach toward their reconstruction during surgical procedure...
February 28, 2003: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/16631299/-subperiosteal-midface-lifting
#9
A Bonnefon
Since 1990, when we had found the solutions about the oval of the face and the neck problems by the vertical lift, our whole attention was focused on the midface. We have been through the "cheek lift", high SMAS incision. We followed Oscar Ramirez and Richard Anderson in the subperiosteal undermining of the mid face under endoscopic control by a buccal and temporal incision. The actual technic made possible by Paul Tessier's work who initiated the subperiosteal undermining and Oscar Ramirez who initiated the endoscopy...
April 2006: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/16100986/-spheroid-body-myopathy-case-report
#10
Rosana Hermínia Scola, Alcides Júnior Trentin, Rodrigo Vaez, Vinicius de Faria Gignon, Thaís Gurgel Costa, Lineu Cesar Werneck
Spheroid body myopathy is a rare illness classified in the group of the congenital myopathies as a desmin-related neuromuscular disorder, presenting dominant autosomical origin with the beginning of the symptoms in the adult phase. We report on a seven years old girl with facial paresia, generalized muscular hypotrophy and hypotony, generalized deep areflexia, proximal upper and lower limbs muscular strengh and distal upper limbs grade 3 and distal lower limbs grade 1. Needle electromyography evidenced increased conscription and potentials of motor unit of short duration and low amplitude, characterizing a myopathic standard...
June 2005: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/15776327/-injuries-and-overload-damages-at-players-of-the-german-lady-soccer-national-team
#11
COMPARATIVE STUDY
T Steinacker, M Steuer, V Höltke
30 female soccer-national-players were examined sport-orthopedically in a yearly sport-medical examination. Beside the anamnesis, a clinical and manual-therapeutic examination took place with it, just as an isokinetic-strengh-performance-diagnostics of the thight-musculature. The averaged age of the players amounted to 23.6 +/- 3.6 years, the mean value for the BMI amounted 22.2 +/- 1.34 kg/m (2). The examination shows which injuries and overload-troubles appear at lady-soccer-national-players. The most frequent injuries represented band-capsule-damages and muscle strain...
March 2005: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/15228111/cyanex-923-as-the-extractant-in-a-rare-earth-element-impurity-analysis-of-high-purity-cerium-oxide
#12
Taicheng Duan, Hongfei Li, JianZhen Kang, Hangting Chen
In this work, the feasibility of employing Cyanex 923 as an extractant into the non-cerium REE (rare earth elements) impurity analysis of high-purity cerium oxide was investigated. Through investigations on the choice of the extraction medium, the optimium extraction acidity, matrix Ce4+ effect on the non-cerium REE ion extraction, the optimium extractant concentration and suitable extracting time, and oscillation strengh, it was found that when the phase ratio was at 1:1 and the acicidity was about 2% H2SO4, by gently shaking by hand for about 2 min, 10 mL of 30% Cyanex 923 could not extract even for a 20 ng amount of non-cerium REE3+ ions...
June 2004: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/14703967/influence-of-methacrylic-acid-and-hydroxypropylmethyl-cellulose-on-the-tablet-properties-and-in-vitro-release-of-dextromethorphan-hydrobromide
#13
S Takka, S Singh Bharaj, A Sakr
The release of dextromethorphan hydrobromide from matrices containing hydroxypropylmethyl cellulose (HPMC K100LV) and methacrylic acid copolymer (Eudragit L100-55) has been evaluated at different ratios of the polymers. The physicochemical properties (including weight, thickness, crushing strengh, friability and disintegration time) were also determined at 1000, 2000 and 4000 p compression forces. No significant differences in weight uniformity and thickness values were observed between the different formulations...
December 2003: Die Pharmazie
https://www.readbyqxmd.com/read/14441563/-irradiation-of-proteins-denatured-by-urea-and-dispersed-in-media-of-high-ionic-strengh
#14
R SANTAMARIA, F MATTACE RASO, V VERGA
No abstract text is available yet for this article.
July 31, 1959: Bollettino Della Società Italiana di Biologia Sperimentale
https://www.readbyqxmd.com/read/13849818/-the-effect-of-the-strengh-of-various-wave-lengths-on-stimulation-of-copulation-of-chlamydomonas-moewusii
#15
H FOERSTER
No abstract text is available yet for this article.
July 1959: Zeitschrift Für Naturforschung. Teil B: Chemie, Biochemie, Biophysik, Biologie
https://www.readbyqxmd.com/read/6251682/-analgesic-cutaneous-electrostimulation-in-diseases-of-the-nervous-system-technic-and-indications
#16
M Kh Starobinets, L D Volkova
In 76 patients with various pathologies of the nervous system accompanied with the pain syndrome, cutaneous electric stimulation was used for analgesia. The optimal effect was attained by proper positioning of the electrodes, use (as usual) of the monopolar method of the stimulation simultaneously in two sites, and maintenance of the definite parameters of the electric current (rectangular impulse duration 0.1 to 0.2 msec, frequency 60 to 70 o. p. s., current strengh 30 to 50 mA). A prolonged analgesic effect depended little on the disease entity: it was the duration of the pain syndrome that was the main factor predetermining the degree of the analgesic effect...
1980: Zhurnal Nevropatologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/1247153/effects-of-prophylactic-antibiotics-on-colonic-healing
#17
H H LeVeen, S Wapnick, G Falk, O Olivas, D Bhat, M Gaurdre, M Patel
The effect of antibiotic colon preparation on the tensile strength and morphologic appearance of colonic anastomoses has been investigated in dogs. Preparation with preoperative kanamycin did offer a slight benefit over mechanical bowel cleansing. The addition of erythromycin and kanamycin to the preoperative bowel preparation significantly (p less than 0.001) improved the mean tensile strengh of the healing colonic anastomosis. Continuation of erythromycin and kanamycin for one week postoperatively almost doubled the mean tensile strength of the healing anastomosis...
January 1976: American Journal of Surgery
https://www.readbyqxmd.com/read/908109/relationship-between-acetylstrophanthidin-induced-aftercontractions-and-the-strength-of-contraction-of-canine-ventricular-myocardium
#18
G R Ferrier
Contractile activity was recorded from isolated canine ventricular muscle exposed to acetylstrophanthidin (AS), 0.5 to 2 X 10(-7) g/ml. Development of the positive inotropic effect of AS was accompanied by the appearance of aftercontractions (AC) coupled to the driven responses. The amplitudes of AC increased with the number of preceding beats. Test beats occurring during the ascending limb of AC were potentiated and the potentiation increased with the amplitude of the AC. Beats falling during the descending limb decreased in strength as the amplitude of the AC increased...
November 1977: Circulation Research
https://www.readbyqxmd.com/read/907548/-mechanical-properties-of-carbon-as-implant-material-in-orthopedic-surgery-author-s-transl
#19
U Weber, M Auff'm Ordt, H Rettig, K J Hüttinger, U Rosenblatt, H Brückmann
Among others material problems are come to the fore in endoprothetic with growing biochemical knowledge, also because of the realisation that in different parts of the same prothesis functionally different mechanical demands must be set. Technological progress in carbon production has lead to the development of a spectrum of different carbon specialities with various mechanical properties. In orthopaedic surgery of endoprothetic high strengh isotropic carbon, impregnated carbon and fibrereinforced carbon-carbon-composites are of particular interest, because of their physical properties and unchanged favourable chemical and biological properties of carbon...
August 26, 1977: Archiv Für Orthopädische und Unfall-Chirurgie
https://www.readbyqxmd.com/read/237253/the-muscular-membrane-and-calcium-activation-of-the-contractile-system-of-a-lamellibranch-smooth-muscle-abrm
#20
F Baguet, G Marchand-Dumont
1. Thin bundles of fresh ABRM treated by EDTA solution or Triton x-100 0.1% can be brought like glycerol-extracted fibres through contraction-relaxation cycles by changing the free Ca2+ level of the bathing medium for 10-6 M to 10-9 M. The kinetics of isometric force development and relaxation has been studied in the two conditions i.e ionic strength 0.06 pH 6.5 and ionic strength 0.28, pH 7.0 which are known to induce the catch-state in glycerol extracted fibres. When the low Ca-2+ solution (10-9M) is substituted for the high Ca-2+ solution (10-6M) immediately after the maximal force has been developed, relaxation occurs at a higher rate at ionic strength 0928 and pH 6...
1975: Pflügers Archiv: European Journal of Physiology
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