1 electrical activity of the heart the action potential and its propagation

... chiều trục phải The diagnostic criterion for right ventricular hypertrophy is: R wave in V1 equal to or greater than the S wave and at least mm tall RVH features include the marked right axis ... criterion applies only in individuals over 25 years of age In younger persons, R in V5 or V6 plus S in V1 should exceed 40 mm before the diagnosis of left ventricular hypertrophy can be made R in ... cao chuyển đạo V5 V6 Many efforts have been made to lay down criteria for the diagnosis of left ventricular hypertrophy The following criteria have gained wide acceptance : R in V5 or V6 plus S...

Ngày tải lên: 12/08/2014, 20:15

... duration of the action potentials (APD50) The records were obtained with propagation in a chain of 10 cells Shortening the delay time produced shortening of the APD50 Results The AP waveform and propagation ... purposes) Theoretical Biology and Medical Modelling 2005, 2:48 Figure Circuit diagram for one of the basic units Circuit diagram for one of the basic units The unit circuitry was the same for both the ... each cell Propagation velocity was calculated from the total propagation time (TPT), measured as the difference between the times when the APs (rising phase) of the first cell and that of the last...

Ngày tải lên: 13/08/2014, 23:20

... “Introduction” states the rationale of the study, Semantics can be simply defined as the study of meaning It defines the aims, objectives and the significance, presents the is central to the study of communication ... review of the research Chapter 3: “Methodology and Procedures” mentions the method and procedures of the research Chapter 4: “Findings and Discussions” is the main frame of need to understand semantics ... element of the meaning of a word; a description of the characteristic feature of what the word refers to E.g the sense of “grasshopper” is “an insect which can jump high the study, which describes and...

Ngày tải lên: 26/11/2013, 13:21

... savages and daring thieves." Before us also stretched the summer range of the antelope, deer, elk, and buffalo The effort to keep out of the way of the Pawnees, and the desire to catch sight of the ... on duty in the southern part of the province; and the non-enlisted were deemed necessary for the protection of the colonies of American women and children encamped on the soil of the enemy Moreover, ... decided upon their course of action They knew the scarcity of provisions in camp, the condition of the trail over the mountains, the probability of long, fierce March storms, and other obstacles...

Ngày tải lên: 31/03/2014, 13:20

... B Fig Proof It suffices to apply homothety of center the centroid of ABC and coefficient − to the configuration of the previous claim Statement Let O, I be the circumcenter and incenter of ABC An ... PROPERTY OF THE JERABEK HYPERBOLA AND ITS COROLLARIES 55 Statement Let P be a point on the Euler line of ABC, A1 B1 C1 be the circumcevian triangle of P , and A2 , B2 , C2 be the reflections of A1 ... are the reflections of this point in the midpoints of the sides of ABC Therefore, the triangles ABC and A2 B2 C2 are centrosymmetric B2 A2 A1 C B1 C2 A B C1 Fig Note also that the center of perspective...

Ngày tải lên: 18/07/2014, 22:48

... family genes of the mitochondrial pathway, and the TRAIL (TNFSF10) gene of the death receptor signaling pathway [22], furthermore, in our previous study, the genes (SPP1 and CREBBP) of the TGF-b ... (BCL2L1) for The relative amounts of the genes of interest and the b2M reference gene were measured in two independent assays The 2(-ΔΔCT) method was used to present the data of the genes of interest ... Page of All procedures were conducted in accordance with the guidelines of the Medical Ethics committees of the health bureau of Guangdong Province, PR China RNA extraction and cDNA synthesis...

Ngày tải lên: 10/08/2014, 22:21

... projects to the lateral hypothalamus to mediate the activation of sympathetic component of the ANS [36]; projections to the dorsal motor nucleus of the vagus are involved in the activation of the parasympathetic ... at the hypothalamus, pituitary gland or gonads There are close relations with the sustained activity of the end-product of the HPA axis and suppressed steroid sex and growth hormones [57] The ... M" conditions To justify the relevance of the management of the "type O" condition, the chiropractic profession has usually cited the presence of the somatovisceral and viscerosomatic reflexes...

Ngày tải lên: 13/08/2014, 14:20

... within the discipline, I hope to offer fresh insights about how these individuals understand themselves and the world around them As many of the arguments offered in this dissertation address the ... ruthless and disloyal in exploiting and subverting the very same institutional 11 discourse upon which they established their professional careers, for their own professional ambition and profit Further ... thought On the other hand, many young intellectuals have passed through the revival and, after a heady and rapid apprenticeship, gone right out the other side again They have 'settled their accounts'...

Ngày tải lên: 11/09/2015, 21:33

... FOREST HERPETOFAUNA 2.1 Annotated checklist and key to the species of amphibians and reptiles inhabiting the northern Peruvian dry forest along the andean valley of the Marañón River and its tributaries ... checklist and key to the species of amphibians and reptiles inhabiting the northern Peruvian dry forest along the andean valley of the Marañón River and its tributaries Contribution of Claudia ... BIODIVERSITY OF THE PERUVIAN DRY FOREST HERPETOFAUNA Abstract A checklist of the amphibians and reptiles of 22 localities situated in the northern Peruvian dry forest valley of the Marañon and its tributaries,...

Ngày tải lên: 19/11/2015, 15:51

... Stackebrandt, 1994) 1.2 The genome of Streptomyces The genome of Streptomyces is remarkable for several reasons: its size, its high G+C content, the linearity of the chromosome and the organization of ... which the activated monomers and the growing acyl chains are attached At the end of the synthesis the chain is liberated by the action of a thioesterase and this liberation in solution is often ... present At the end of the last module there is a thioesterase (TE) domain for the hydrolysis of the thioester bond and the release of the polyketide in solution This is often coupled with the cyclization...

Ngày tải lên: 19/05/2016, 11:22

... According to Parry and Clark [37], expression of the ybiK gene responded to the presence of cysteine and to defects in the cysB gene, and the ybiK knockout mutation impaired the use of glutathione ... a- and b-subunits, respectively The positions of these peaks are exactly the same for the protein recovered from crystals However, the molecular masses for these two subunits predicted from the ... activity of the LlA and EcAIII proteins With some of the substrates, no enzymatic activity could be detected, indicating lack or possibly very low level of the corresponding activity Enzyme activity...

Ngày tải lên: 30/03/2014, 15:20

... mass spectroscopy and elemental analysis The IR spectra of compounds (e) and (f) showed the absent of the N–H absorption band at 3400 cm–1 and the presence of the C=O stretching band at 1600 cm–1, ... determined and compared with those of the synthesised compounds (Fig 3) The antioxidant activity of BHA and AA was still lower than that of the compounds (a) and (d) In general, the antioxidant activity ... (a) and (d) increase and stabilise the antioxidant activity compared to the other compounds at different time intervals The percentage inhibition of LDL oxidation for the standards like BHA and...

Ngày tải lên: 07/08/2014, 14:20

... and NDMAFP  To establish UV/H2O2 technology and to assess its removal effect on organic precursors and NDMAFP in treated wastewater 1.3 Outline of the thesis This thesis presents the study of ... distribution of both DOC and DON LC-OCD-OND separates DOM into major fractions It estimates the quantity of organic carbon in each fraction and the quantity of organic nitrogen in biopolymer and humic ... increases with the increase of chloramine concentration However, the formation reaches a plateau in the end NDMA formation increases with the increase of contact time and with the increase of Cl/N molar...

Ngày tải lên: 02/10/2015, 17:15

... important for the GABA transport activity 1-Deoxymannojirimycin inhibits the GABA-uptake of GAT1 In order to gain further insight into the role of the terminal structures of the N-glycans of GAT1, ... that of the wild type, the GABA-uptake activities of the N-glycosylation 1628 Fig Determination of expression of GFP-tagged GAT1 mutants on the surface of transfected CHO cells and measurement of ... reduction of GABA-uptake activity For quantitative measurement of the specific activity of GABA-uptake, an aliquot of the stable CHO transfectants was used for the GABA-uptake assay, and another aliquot...

Ngày tải lên: 19/02/2014, 17:20

... concentrations and these are the units used here In Table (anticancer activities), the numbers and refer to 10)5 and 10)6 M, respectively Ten of the peptides failed the first stage of the anticancer ... anticancer and antibacterial activity of membrane active peptides, suggests that the anticancer activity is also due to penetration and disruption of the membranes of the cancer cells The selectivity of ... membranes The antibiotic and anticancer activities of peptides of this type are due to the disruption of the cell membrane by the peptide In order to span the lipid bilayer of bacterial and cancer...

Ngày tải lên: 17/03/2014, 09:20

... stability of WR1065 in culture, and funding to share the cost of the amifostine synthesis MCP wrote the protocols, calculated the data, prepared the graphs and tables and wrote the paper The actual ... test the effect of WR1065 on SIV replication ex vivo At the time of blood collection, the animals (612, 642 and 674), had plasma titers of 0.10, 0.03 and 6.40 × 106 copies of SIV RNA/ml, and CD4 ... WR1065 did not inhibit the antiretroviral activity of AZT On the contrary, combination of WR1065 with AZT did increase the antiretroviral efficacy of AZT Anti-SIV activity of WR1065 in TCBs from...

Ngày tải lên: 10/08/2014, 05:21

... "off" of the HIV-1 LTR Therefore, future experiments will determine the rate and type of Tat methylation on the LTR and in the presence of TAR RNA Although we have shown that the lysine 51 of ... completely shuts down the promoter activity We propose that the interaction of SETDB1 with Tat methylates the protein and that may be responsible for the recruitment of part of the transcriptional ... [71] which promotes the deacetylation of histones and formation of heterochromatin The recruitment of these gene silencing proteins to the HIV-1 genome by the methylation of Tat may be a strong...

Ngày tải lên: 13/08/2014, 05:20

... anticancer activity However, it is still unclear whether the anticancer activity of the PR domain is due to its methyltransferase activity or the interaction 166 with the PRB motif Further studies ... described below; and the cell death rate was examined by the trypan blue method after 24 and 48 hr of transfections, respectively Western blot of PR domain The expression of the PR domain was ... over the progression of cancer; and the second question is whether the PR domain alone possesses anticancer activity In this study, we quantitatively analyzed the mRNA expression level of RIZ1...

Ngày tải lên: 25/10/2012, 11:15

... that exact same moment of time There was the smell of the perfume she had chosen that day, the quality of her voice, the people that were in the corridor at the same time, and the way she had looked ... Now, the UFO’s on the other hand, we can’t even get a good photograph of one And if we accept the stories of these little gray aliens, then, I realy think we’re dealing with two different sets of ... recognized and squashed with the words, “Cancel that.” He took an audible inventory of his surrounding There was the hum of life support, the ticking of an antique clock, and the snoring of a companion...

Ngày tải lên: 06/11/2012, 16:13

... = 150 N Problem 2-17 Determine the magnitude and direction of the resultant force F R Express the result in terms of the magnitudes of the components F and F and the angle φ Solution: F R = F ... Problem 2-20 The plate is subjected to the forces acting on members A and B as shown Determine the magnitude of the resultant of these forces and its direction measured clockwise from the positive ... the magnitude of the resultant force FR = F1 + F2 and its direction, measured counterclockwise from the positive x axis by summing the rectangular or x, y components of the forces to obtain the...

Ngày tải lên: 17/02/2014, 14:20