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Biophysics

The Use of the Er:YAG Laser 2940 nm in complex caries removal

The Use of the Er:YAG Laser 2940 nm in complex caries removal

Significant pain reduction and lack of the vibrations give advantage to LASER cavity preparation. The ideal treatment should be fast, painless and effective. Discomfort of the patient and tendency to protect hard dental tissues can lead to insufficient debridement of the carious lesion, inadequate obturation and failure of the restoration. A carious lesion is usually removed using hand instruments and rotary burs.
Understanding of laser physics and laser-tissues interaction for specific wavelength is required to predict the accomplishment of laser treatment.

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author: Jana Ohlasová, Vladimíra Schwartzová, Silvia Timková | UPJŠ LF v Košiciach | discipline: Biophysics, Dentistry | category: Casuistics in image | keywords: Er:YAG laser, caries, ablation, Er:YAG laser, caries, ablation | attachment: 8 | viewed: 216x | published on: 1.12.2017 | last modified on: 16.4.2018

Protein preparation

Protein preparation

This course contains five sub-courses, which consist of theoretical and practical parts. The individual sub-courses should provide students simple and quick approaches needed for solving basic scientific problems that could rise during the course of their bachelor, diploma or PhD study. The first set will allow students to gain knowledge about protein cloning, expression and purification. The second part focuses on biochemical characterization of enzymes via their enzymatic activity as well as protein-protein interactions. The third set will provide simple biochemical methods to detect protein-protein and protein-DNA interactions as well as monitor motor activity of protein.

 
author: Lumír Krejčí | LF MU | discipline: Biophysics, Medical Chemistry and Biochemistry | category: Educational works | keywords: Protein-protein and protein-DNA interaction methods, EMSA, pull-down, yeast 2 hybrid, Helicase assay, sumoylation | attachment: 5 | viewed: 2973x | published on: 18.6.2012 | last modified on: 20.8.2013

Ultrasonography

Ultrasonography

This ppt teaching file is dedicated to history, physical principles and imaging methods of ultrasound examination.

 
author: Václav Janík | 3.LF UK | discipline: Biophysics, Gastroenterology and Hepatology, Radiology and Imaging | keywords: radiology, principles of ultrasound, imaging methods of ultrasound | attachment: 2 | viewed: 2184x | published on: 14.3.2011 | last modified on: 3.6.2011

Dynamic X-ray methods. X-ray contrast agents

Dynamic X-ray methods. X-ray contrast agents

This ppt file overviews dynamic radiological procedures: principles of fluoroscopy, seriography, cineradiology and videorecording are presented.
The second part treats contrast agents currently employed in X-ray examinations of different organs.
The presentation is followed by control questions (multi-choice test).

 
author: Jan Šprindrich | 3.LF UK | discipline: Biophysics, Radiology and Imaging | category: Presentations | keywords: Fluoroscopy, seriography, cineradiography, videorecording. X-ray kontrast agents | attachment: 3 | viewed: 3201x | published on: 4.3.2011 | last modified on: 23.11.2011

Materials for Biophysics

Materials for Biophysics

Text materials for Biophysics on the following topics:

Detection of ionizing radiation Ecology Efects of electric current on human body The Merck manual Hearing Gamma Knife Peaceful atom Radioactivity and nuclear medicine Radiation Sound and ear Ultrasound Ultraviolet radiation
 
author: Marek Průcha | 3.LF UK | discipline: Biophysics | category: Presentations | keywords: biophysics, hearing, electric, radiation, gamma knife | attachment: 15 | viewed: 3118x | published on: 8.11.2010 | last modified on: 23.11.2011
 

Biophysical seminars for medical students

Biophysical seminars for medical students

Set of biophysical seminars dedicated to English curriculum 1C modul students of the Third Faculty of Medicine, Charles University. The following topics are: biosignals, mechanical waves and sound, electromagnetic radiation, radiation and radioactivity, electric injury, imaging methods, SPECT and gamma camera, stereotactic surgery and gamma knife, spectroscopy.

 
author: Eugen Kvašňák | 3.LF UK | discipline: Biophysics, Radiology and Imaging | category: Elearning courses | keywords: ionizing radiation, biophysics, radioactivity, radiation, spectroscopy, imaging methods, electric injury, mechanical waves, sound, light, biosignals | attachment: 9 | viewed: 1870x | published on: 28.1.2014 | last modified on: 4.2.2014

Molecular biology

Molecular biology

The terms "recombinant DNA technology", "DNA cloning", "molecular cloning", and "gene cloning" all refer to the same process: a transfer of a DNA fragment of interest from one organism to a self-replicating genetic element such as a bacterial plasmid. The DNA of interest can then be replicated (together with the rest of the plasmid) in a foreign host cell. This technology is a common practice in molecular biology labs today.

 
author: Lumír Krejčí | LF MU | discipline: Biophysics, Medical Chemistry and Biochemistry | category: Educational works | keywords: Molecular biology, mutagenesis, PCR, DNA, cloning, DNA ligation, transformation, plasmid preparation, protein purification, chromatography, sumoylation, SDS-PAGE | attachment: 2 | viewed: 3059x | published on: 18.6.2012 | last modified on: 20.8.2013

Radiological Imaging Methods

Radiological Imaging Methods

This ppt teaching file is an introduction to the study of radiology for students of medical faculty.
History of radiology, overview of different contemporary imaging methods, their physical principles and future trends of radiology are presented. The second part is dedicated to the static radiological methods of conventional radiography, to radiographic positioning /views/ and to the acquisition of analoque and digital image in radiology.
The presentation is followed by control questions (multi-choice test).

 
author: Jan Šprindrich | 3.LF UK | discipline: Biophysics, Radiology and Imaging | category: Presentations | keywords: Radiology, imaging modalities, radiography, X-ray views, analogue and digital image. | attachment: 2 | viewed: 3105x | published on: 4.3.2011 | last modified on: 23.11.2011

Computed tomography - CT

Computed tomography - CT

This ppt teaching file resumes the principle, technical features and current methods of CT examinations in clinical practice. The presentation includes a lot of pictures, which ilustrative shows possibilities of CT and help us understand it´s principles.
The presentation is followed by control questions (multi-choice test)

 
author: Jan Šprindrich | 3.LF UK | discipline: Biophysics, Radiology and Imaging | category: Presentations | keywords: CT, spiral CT, MDCT, HRCT, Angio-CT, 3D CT, 4D CT, perfusion CT, radiation burden in CT examinations | attachment: 2 | viewed: 3047x | published on: 4.3.2011 | last modified on: 23.11.2011

Gamma knife

Gamma knife

This article includes two powerpoint presentations about radiosurgery. Radiosurgery is a medical procedure that allows non-invasive treatment of benign and malignant tumors. It is also known as stereotactic radiotherapy. Radiosurgery is especially helpful for the localized, highly precise treatment of brain tumors.

 
author: Josef Novotný | 3.LF UK | discipline: Biophysics, Radiology and Imaging | category: Educational websites, Presentations | keywords: radiosurgery, gamma knife, brain tumor | attachment: 2 | viewed: 7315x | published on: 4.11.2010 | last modified on: 23.11.2011
 
SCHWARZ Daniel, DUŠEK Ladislav. A uniform platform for electronic publishing and sharing the educational content in the network of medical faculties MEFANET [online]. Masaryk University, [2008], [cited 2018-06-20]. Available from WWW: <http://portal.mefanet.cz>. Version 1.9 [2014].