scholarly journals Critical evaluation of specific efficacy of potentised preparations in a plant-based bioassay

2021 ◽  
Vol 48 ◽  
pp. 102004
Author(s):  
Annekathrin Ücker ◽  
Stephan Baumgartner ◽  
David Martin ◽  
Tim Jäger
Keyword(s):  
Author(s):  
A. Lawley ◽  
M. R. Pinnel ◽  
A. Pattnaik

As part of a broad program on composite materials, the role of the interface on the micromechanics of deformation of metal-matrix composites is being studied. The approach is to correlate elastic behavior, micro and macroyielding, flow, and fracture behavior with associated structural detail (dislocation substructure, fracture characteristics) and stress-state. This provides an understanding of the mode of deformation from an atomistic viewpoint; a critical evaluation can then be made of existing models of composite behavior based on continuum mechanics. This paper covers the electron microscopy (transmission, fractography, scanning microscopy) of two distinct forms of composite material: conventional fiber-reinforced (aluminum-stainless steel) and directionally solidified eutectic alloys (aluminum-copper). In the former, the interface is in the form of a compound and/or solid solution whereas in directionally solidified alloys, the interface consists of a precise crystallographic boundary between the two constituents of the eutectic.


2009 ◽  
Vol 00 (00) ◽  
pp. 090810030148087-29
Author(s):  
Harmik Sohi ◽  
Alka Ahuja ◽  
Farhan Jalees Ahmad ◽  
Roop Krishen Khar

1981 ◽  
Vol 45 (03) ◽  
pp. 204-207 ◽  
Author(s):  
Wolfgang Siess ◽  
Peter Roth ◽  
Peter C Weber

SummaryPlatelets have been implicated in the development of atherosclerotic and thrombotic vascular diseases. Evaluation of platelet aggregation in relation to endogenously formed compounds which affect platelet function may provide information of clinical and pharmacological relevance. We describe a method in which thromboxane B2 (TXB2) formation was analyzed following stimulation of platelet-rich plasma (PRP) with ADP, 1-epinephrine, collagen, and arachidonic acid. In addition, we determined platelet sensitivity to prostacyclin following ADP- and collagen-induced platelet aggregation. The parameters under study were found to depend on the platelet count in PRP, on the type and dose of the aggregating agent used, and on the test time after blood sampling. By standardization of these variables, a reliable method was established which can be used in clinical and pharmacological trials.


1974 ◽  
Vol 31 (02) ◽  
pp. 273-278
Author(s):  
Kenneth K Wu ◽  
John C Hoak ◽  
Robert W Barnes ◽  
Stuart L Frankel

SummaryIn order to evaluate its daily variability and reliability, impedance phlebography was performed daily or on alternate days on 61 patients with deep vein thrombosis, of whom 47 also had 125I-fibrinogen uptake tests and 22 had radiographic venography. The results showed that impedance phlebography was highly variable and poorly reliable. False positive results were noted in 8 limbs (18%) and false negative results in 3 limbs (7%). Despite its being simple, rapid and noninvasive, its clinical usefulness is doubtful when performed according to the original method.


Author(s):  
Randi Veiteberg KVELLESTAD ◽  
Ingeborg STANA ◽  
VATN Gunhild

Teamwork involves different types of interactions—specifically cooperation andcollaboration—that are necessary in education and many other professions. The differencesbetween cooperation and collaboration underline the teacher’s role in influencing groupdynamics, which represent both a foundation for professional design education and aprequalification for students’ competences as teachers and for critical evaluation. As a testcase, we focused on the Working Together action-research project in design education forspecialised teacher training in design, arts, and crafts at the Oslo Metropolitan University,which included three student groups in the material areas of drawing, ceramics, and textiles.The project developed the participants’ patience, manual skills, creativity, and abilities,which are important personal qualities for design education and innovation and representcornerstones in almost every design literacy and business environment. The hope is thatstudents will transform these competences to teaching pupils of all ages in their futurecareers.


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