scholarly journals Improvement of methods for receiving high quality grape saplings by in vitro method

2017 ◽  
Vol 07 (01) ◽  
Author(s):  
Sultanov K S
Keyword(s):  
High Quality ◽  
In Vitro Method

A in Vivo Assay for Standardizing Heparin Preparations

1979 ◽  
Vol 41 (03) ◽  
pp. 576-582
Author(s):  
A R Pomeroy
Keyword(s):  
In Vitro Assays ◽  
British Pharmacopoeia ◽  
In Vitro Method ◽  
Standard Preparation ◽  
Reliable Estimation ◽  
Assay Procedure ◽  
Accuracy And Precision ◽  
Heparin Preparation

SummaryThe limitations of currently used in vitro assays of heparin have demonstrated the need for an in vivo method suitable for routine use.The in vivo method which is described in this paper uses, for each heparin preparation, four groups of five mice which are injected intravenously with heparin according to a “2 and 2 dose assay” procedure. The method is relatively rapid, requiring 3 to 4 hours to test five heparin preparations against a standard preparation of heparin. Levels of accuracy and precision acceptable for the requirements of the British Pharmacopoeia are obtained by combining the results of 3 to 4 assays of a heparin preparation.The similarity of results obtained the in vivo method and the in vitro method of the British Pharmacopoeia for heparin preparations of lung and mucosal origin validates this in vivo method and, conversely, demonstrates that the in vitro method of the British Pharmacopoeia gives a reliable estimation of the in vivo activity of heparin.

In vitro method for teaching percutaneous vascular catheterization.

1991 ◽  
Vol 157 (5) ◽  
pp. 1125-1125
Author(s):  
D J Eschelman ◽  
A J Greenfield ◽  
D T Gibbens
Keyword(s):  
In Vitro Method ◽  
Vascular Catheterization

scholarly journals Optimization of X-ray Investigations in Dentistry Using Optical Coherence Tomography

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4554
Author(s):  
Ralph-Alexandru Erdelyi ◽  
Virgil-Florin Duma ◽  
Cosmin Sinescu ◽  
George Mihai Dobre ◽  
Adrian Bradu ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Radiation Dose ◽  
Imaging Techniques ◽  
Image Resolution ◽  
Optical Coherence ◽  
X Rays ◽  
High Quality ◽  
X Ray

The most common imaging technique for dental diagnoses and treatment monitoring is X-ray imaging, which evolved from the first intraoral radiographs to high-quality three-dimensional (3D) Cone Beam Computed Tomography (CBCT). Other imaging techniques have shown potential, such as Optical Coherence Tomography (OCT). We have recently reported on the boundaries of these two types of techniques, regarding. the dental fields where each one is more appropriate or where they should be both used. The aim of the present study is to explore the unique capabilities of the OCT technique to optimize X-ray units imaging (i.e., in terms of image resolution, radiation dose, or contrast). Two types of commercially available and widely used X-ray units are considered. To adjust their parameters, a protocol is developed to employ OCT images of dental conditions that are documented on high (i.e., less than 10 μm) resolution OCT images (both B-scans/cross sections and 3D reconstructions) but are hardly identified on the 200 to 75 μm resolution panoramic or CBCT radiographs. The optimized calibration of the X-ray unit includes choosing appropriate values for the anode voltage and current intensity of the X-ray tube, as well as the patient’s positioning, in order to reach the highest possible X-rays resolution at a radiation dose that is safe for the patient. The optimization protocol is developed in vitro on OCT images of extracted teeth and is further applied in vivo for each type of dental investigation. Optimized radiographic results are compared with un-optimized previously performed radiographs. Also, we show that OCT can permit a rigorous comparison between two (types of) X-ray units. In conclusion, high-quality dental images are possible using low radiation doses if an optimized protocol, developed using OCT, is applied for each type of dental investigation. Also, there are situations when the X-ray technology has drawbacks for dental diagnosis or treatment assessment. In such situations, OCT proves capable to provide qualitative images.

An in Vitro Method for Measuring Ophthalmic Preservative Cytotoxicity

1986 ◽  
Vol 5 (4) ◽  
pp. 309-317 ◽  
Author(s):  
Paul S. Imperia ◽  
Hillard M. Lazarus ◽  
Roberte Botti ◽  
Jonathan H. Lass
Keyword(s):  
In Vitro Method

In Vitro Method for Predicting Glycemic Index of Foods Using Simulated Digestion and an Artificial Neural Network

2010 ◽  
Vol 87 (4) ◽  
pp. 363-369 ◽  
Author(s):  
Robert L. Magaletta ◽  
Suzanne N. DiCataldo ◽  
Dong Liu ◽  
Hong Laura Li ◽  
Rajendra P. Borwankar ◽  
...  
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Glycemic Index ◽  
In Vitro Method ◽  
Simulated Digestion ◽  
Artificial Neural

scholarly journals Optimization and Validation of a Microscale In vitro Method to Assess α-Glucosidase Inhibition Activity

2018 ◽  
Vol 14 (5) ◽  
pp. 458-464 ◽  
Author(s):  
Graciela Granados-Guzmán ◽  
Rocio Castro-Rios ◽  
Noemi Waksman de Torres ◽  
Ricardo Salazar-Aranda
Keyword(s):  
Inhibition Activity ◽  
In Vitro Method
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