Development and validation of a new dynamic computer-controlled model of the human stomach and small intestine

2015 ◽  
Vol 113 (6) ◽  
pp. 1325-1335 ◽  
Author(s):  
Aurélie Guerra ◽  
Sylvain Denis ◽  
Olivier le Goff ◽  
Vincent Sicardi ◽  
Olivier François ◽  
...  
Keyword(s):  
Small Intestine ◽  
Human Stomach ◽  
Computer Controlled ◽  
Development And Validation

A PORTABLE AND INEXPENSIVE DO-IT-YOURSELF TEMPERATURE SENSOR

2017 ◽  
Vol 5 (2) ◽  
pp. 51-55
Author(s):  
Jorge Silva ◽  
Emmanuel Lomba ◽  
D. Martinho ◽  
J. Duarte
Keyword(s):  
Temperature Sensor ◽  
Electronic Devices ◽  
Signal Acquisition ◽  
Laboratory Practice ◽  
Different Temperatures ◽  
Class Context ◽  
Computer Controlled ◽  
Do It Yourself ◽  
Development And Validation ◽  
Interesting Alternative

Nowadays it is important to have commercial solutions to be used in teaching and research laboratories for the needs. We can have different equipment according to the necessary parameters of control being related to the influence of parameters internal or external to the laboratory practice. However they can't be straightforward to use, their costs can be considerable.  In this context, the do-it-yourself approach is an interesting alternative. In this paper we report the construction of a temperature sensor made by students. Based on a probe taken from a deactivated equipment, the sensor development and validation encompassed its design and building up, the establishment of a connection to a personal computer via USB, the setup of computer-controlled processes, which included remote control, graphical and numerical displaying and signal acquisition, and finally its testing. Tests were performed in water containers with different temperatures, namely boiling, room and ice. The obtained results are comparable to those from a commercial thermometer. This student experiment project allowed not only to contact different disciplines such as chemistry, electronics, and programming but also to gain competencies that can be used outside the class context. We proved it is possible to build tailor-made electronic devices capable of providing useful measurements to chemical purposes old equipment in an inexpensive and trustworthy way.

scholarly journals Measurement of gut hormonal peptides in biopsies from human stomach and proximal small intestine.

Gut ◽  
1983 ◽  
Vol 24 (2) ◽  
pp. 114-119 ◽  
Author(s):  
M G Bryant ◽  
S R Bloom ◽  
J M Polak ◽  
S Hobbs ◽  
W Domschke ◽  
...  
Keyword(s):  
Small Intestine ◽  
Human Stomach ◽  
Proximal Small Intestine

scholarly journals In vitro digestion of folate in yolk and granule fraction as tested in a dynamic, computer-controlled model of stomach and small intestine

LWT ◽  
2021 ◽  
pp. 112494
Author(s):  
Nassim Naderi ◽  
Patricia Savard ◽  
Alain Doyen ◽  
Yves Pouliot ◽  
James D. House
Keyword(s):  
Small Intestine ◽  
In Vitro Digestion ◽  
Granule Fraction ◽  
Computer Controlled

scholarly journals Intestinal metaplasia and carcinomas of the human stomach: an immunohistological study.

1983 ◽  
Vol 31 (3) ◽  
pp. 366-375 ◽  
Author(s):  
J Nardelli ◽  
J Bara ◽  
B Rosa ◽  
P Burtin
Keyword(s):  
Molecular Weight ◽  
Small Intestine ◽  
Gastric Mucosa ◽  
Intestinal Metaplasia ◽  
Proximal Part ◽  
Goblet Cells ◽  
Human Stomach ◽  
Immunoperoxidase Staining ◽  
Gastric Carcinomas ◽  
Immunohistological Study

Rabbit immunization with duodenal or colonic high molecular weight components allowed us to distinguish three new M3 antigens associated with intestinal goblet cells; these were denoted as M3SI, M3D, and M3C. Using immunoperoxidase staining, the anti-M3SI serum labeled all goblet cells in the small intestine, and a certain number of them in the colon, mainly in its proximal part. The anti-M3D serum reacted primarily with the goblet cells of the duodenal villosities, and the anti-M3C serum with all goblet cells of the large, but not the small, intestine. Moreover, the M3C antigen was recovered in some goblet cells of the fetal duodenum, in association with the two other markers. Only the M3D and the M3SI antigens were observed in the normal duodenum and intestinal metaplasia (IM) of benign gastric mucosa. In contrast, IM adjacent to gastric carcinomas, whatever their histological type, contained the M3C antigen in addition to M3D and M3SI antigens, and thus showed an antigenic pattern similar to fetal duodenum. Some gastric carcinomas, especially those with intestinal-like differentiation, produced the colonic M3C antigen as the neighboring IM. Thus, these two tissues displayed common differentiation features, which could be related to fetal duodenum rather than to adult colon.

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