scholarly journals A Novel method for the identification and quantification of weight faltering

Author(s):  
Daniel J. Naumenko ◽  
James Dykes ◽  
G. Kesler O'Connor ◽  
Zofia Stanley ◽  
Nabeel Affara ◽  
...  
2014 ◽  
Vol 4 (S2) ◽  
Author(s):  
Jelena Spiric ◽  
Anna Maria Engin ◽  
Michael Karas ◽  
Stefan Vieths ◽  
Andreas Reuter

2013 ◽  
Vol 37 (4) ◽  
Author(s):  
August Goebel ◽  
Marcus Boehm ◽  
Hartmut Kirchherr ◽  
W. Nikolaus Kühn-Velten

AbstractDetection and quantification of synthetic cannabinoids (synonym: cannabimimetics) used as a substitute for natural cannabis has been a real toxicological and forensic issue since 2008. On the basis of a short overview of the pharmacological principle, chemical classification, and legal situation in Germany, the development of several analytical and screening approaches is presented. The paper further describes and validates a novel method for the simultaneous identification and quantification of JWH-018, JWH-019, JWH-073, JWH-081, JWH-122, JWH-200, JWH-210, JWH-250, WIN48,098, WIN55,212-2, AM-694 and CP47,497 by means of liquid chromatography-tandem mass spectrometry (LC-MS/MS) in human serum and hair using JWH-018-d


Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6638
Author(s):  
Andrzej Katunin

The paper presents the novel method of damage identification and quantification in beams using the Wigner-Ville distribution (WVD). The presented non-parametric method is characterized by high sensitivity to a local stiffness decrease due to the presence of damage, comparable with the sensitivity of the wavelet-based approaches, however the lack of selection of the parameters of the algorithm, like wavelet type and its order, and the possibility of reduction of the boundary effect make this method advantageous with respect to the mentioned wavelet-based approaches. Moreover, the direct relation between the energy density resulting from the application of WVD to modal rotations make it possible to quantify damage in terms of its width and depth. The results obtained for the numerical modal rotations of a beam presented in this paper, simulating the results of non-destructive testing achievable with the shearography non-destructive testing method, confirm high accuracy in localization of a damage as well as quantification of its dimensions. It was shown that the WVD-based method is suitable for detection of damage represented by the stiffness decrease of 1% and can be identified and quantified with a high precision. The presented results of quantification allowed extracting information on damage width and depth.


BMC Genomics ◽  
2013 ◽  
Vol 14 (Suppl 8) ◽  
pp. S4 ◽  
Author(s):  
Satish M Srinivasan ◽  
Chittibabu Guda

PLoS ONE ◽  
2014 ◽  
Vol 9 (5) ◽  
pp. e97513 ◽  
Author(s):  
Ching-Lin Hsiao ◽  
Ai-Ru Hsieh ◽  
Ie-Bin Lian ◽  
Ying-Chao Lin ◽  
Hui-Min Wang ◽  
...  

Author(s):  
R. E. Heffelfinger ◽  
C. W. Melton ◽  
D. L. Kiefer ◽  
W. M. Henry ◽  
R. J. Thompson

A methodology has been developed and demonstrated which is capable of determining total amounts of asbestos fibers and fibrils in air ranging from as low as fractional nanograms per cubic meter (ng/m3) of air to several micrograms/m3. The method involves the collection of samples on an absolute filter and provides an unequivocal identification and quantification of the total asbestos contents including fibrils in the collected samples.The developed method depends on the trituration under controlled conditions to reduce the fibers to fibrils, separation of the asbestos fibrils from other collected air particulates (beneficiation), and the use of transmission microscopy for identification and quantification. Its validity has been tested by comparative analyses by neutron activation techniques. It can supply the data needed to set emissions criteria and to serve as a basis for assessing the potential hazard for asbestos pollution to the populace.


Author(s):  
M.A. Gregory ◽  
G.P. Hadley

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.


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