Báo cáo khoa học: " Dosimetric accuracy of tomotherapy dose calculation in thorax lesions" ppt

... distribution using the Tomotherapy Inc software (Research station), by con- sidering all the points of the film that are included in the homogeneo us/inhomogeneous phantoms. In our analysisthedosedifferencecriteria ... for PTV points (22 points) (high dose/ low gradient dose points) and for critical structure regions (27 points) (high dose/ high gradient, low dose/ low gradient...

Ngày tải lên: 09/08/2014, 09:20

... be induced by incubating cancer cells with oligomycin, an inhibitor of mitochondrial ATP synthetase [159,160]. Similarly, reduction of OXPHOS by targeted disruption of frataxin, a protein involved in ... finding of two potential binding sites for HIF-1 in the first intron of the PK-M gene. On the other hand, Yamada and Noguchi [116] reported that there is no HIF-1 binding sequence...

Ngày tải lên: 14/03/2014, 23:20

... this dose in the other HT plans by manipulation of the objectives. In turn, manipulation of the objectives in order to increase the minimum dose to 100% of the PTV's volume may result in larger ... dose distribution (in percent of the prescribed dose) for one of the five presented patientsFigure 2 Represents the Gamma Knife dose distribution (in percent of...

Ngày tải lên: 09/08/2014, 10:21

... be 0.5 - 1 mGy/min lead- ing to ~ 0.1% uncertainty in our measurements (2 Gy in ~2.5 min) [15]. In addition, the mechanical precision of the ramp-shaped absorber, the container of the cell sam- ples ... moving tumours by beam tracking by adapting the position of rasterpoints [10]. Lateral adaptation is performed by real- time changes of the scanning magnet settings. Compen- sati...

Ngày tải lên: 09/08/2014, 09:20

... introduction of CT-guided target definition and planning may result in an increase of the dose delivered to the heart in some cases. Other authors already reported on restricting the 3D-CRT field edges in ... after the introduction of CT-guided target definition and planning as standard procedure for breast conserving RT at our institution. Therefore, all involved physicians had...

Ngày tải lên: 09/08/2014, 09:22

... dose (V H )Volume of tissue receiving 67–100% of the prescription dose (V HDT )Volume of tissue receiving >100% of the prescription dose (V 100% ) (V H +V HDT )Volume of tissue receiving >66% of the ... of internal tumor movement during fractionated radiotherapy in terms of online IGRT, to assure optimal patient outcome. Competing interests The author(s) declare...

Ngày tải lên: 09/08/2014, 10:20

... becom- ing pupae in about a week after spinning (Fig. 1B). Isovaleric acid seems to be the cause of prepupal lethality because injection of isovaleric acid into normal spinning larva induces ... subtracting the reduction rate of the enzyme-excluded solution from that of the enzyme-containing solution and was expressed as nmols of 2,6-dichloroindophenol reduced per mg of protein...

Ngày tải lên: 18/02/2014, 04:20

... A minimum number of glucose units in the polymer chain are necessary for a stable binding (four in this case). Another feature is the strong interaction of some residues in the putative binding ... (Fig. 1III–V), which could indicate that the corre- sponding hydroxyl groups are involved in protein binding. The results for the linebroadening measurements of protons H1a in the a...

Ngày tải lên: 18/02/2014, 17:20

... in ammatory cytokines, including IL-1b, TNF-a and IFN-c. (B) Chemokines expressed in the joint recruit leukocytes into the joints. In addition to functioning in cell trafficking, several chemokines have ... examination of affected rheu- matoid joints reveals extensive RANTES ⁄ CCL5 expression in the synovial lining and sublining layers [22]. The expression of RANTES ⁄ CCL5 in cu...

Ngày tải lên: 18/02/2014, 18:20

... that the N-terminal domain is involved in protein–protein interactions with other hydrophilic domains of neighboring integral membrane subunits, and interspecies interactions are incompatible. From ... the bovine complex a large subdomain is made up of  20 integral membrane proteins contributing > 60 transmem- brane segments. Some of these must be intimately involved in proton p...

Ngày tải lên: 19/02/2014, 16:20