effect of aging time t on the oxygen permeabi

... use of the annihilation of the positron e+, i.e the antiparticle of the electron e, to obtain the structural information on the free volume and defects When the positron enters the polymer entity, ... Distance from the upstream side of the film to downstream (cm) xS Local concentration of component at the retentate side of permeator y Local concentration of component at the permeate side of ... modification to withstand the plasticization of CO2 for CO2 separation and retard the physical aging process, has been presented in this thesis We attempted to study the effect of film thickness on the...

Ngày tải lên: 26/09/2015, 10:13

... out at this pH The contribution of the polysaccharide component of LPS to its effect on the oxidation of cross-linked Hb was then investigated by a comparison of the effects of rough and smooth ... proportion of the molecular mass of smooth LPSs, their greater effect on the oxidation rate may be due to more effective binding of Hb The effects of the various LPSs on the oxidation rate of cross-linked ... apparent differences in the starting oxyHb concentrations are the result of an immediate drop in the oxyHb concentration upon addition of the LPS Fig Comparison of the effects of the LPSs of rough...

Ngày tải lên: 08/03/2014, 10:20

... Tg The tests were started with the thickest films, 900 nm As the system was heated, it expanded giving a constant increase in probe position At the onset of the glass transition, the penetration ... solvent last used to wash the sample, and the effect of a hydrolysis reaction As the samples are discussed, the number depicts the reaction time, the next letter represents the solvent (t, toluene; ... cooperativity In addition, the coupling model relates the coupling parameter to the breadth of the relaxation distribution- the higher the coupling parameter or cooperativity, the broader the relaxation...

Ngày tải lên: 23/03/2014, 01:20

... least and the most sensitive to the influence of temperature This observation is not in consistent to the trend of T  T value on each vegetable oil The oil with the greatest sensitivity to ... zero-temperature viscosity constant is introduced into the newly-derived equation and, together with the infinitetemperature viscosity constant, represents the fundamental value of the Ea constant The stability ... not explain the failure of the Ea in indicating the viscosity – temperature stability Therefore, it can be concluded that the activation energy is not a good representation of the viscosity – temperature...

Ngày tải lên: 07/08/2014, 14:20

... the most information on the distribution of lung vibrations and on the overall lung condition However, whether this is the most important period to analyze distribution of vibration remains to ... particular distribution of vibration signified better overall ventilation or oxygenation in that patient Study limitations Physiologic effects other than distribution of vibration were not ascertained ... protocol targets the pressure adjustment to hold VT near the desired value Because the great majority of ventilated patients included in this study were on VC at the start of the experiment, the...

Ngày tải lên: 13/08/2014, 03:20

... (5'-CTGAGATCTGAGCAAGCTTTTACATTACTAATCT AATATTAAATTTAACCATG TTATC-3'), which adds a stop codon and a Hind III restriction site to the C-terminus of the protease The amplified PCR product was gel purified and cloned ... Institute of the National Institutes of Health and P30 MH6221 from the Mental Health Institute of the Institutes of Health References Competing Interests None of the authors have commercial interests ... (5'-GATTTATAAATCATATG GCATATAATAAAGTGGGTACCACTACAACATTAG-3'), which adds an NdeI restriction site, methionine, and alkaline to the N-terminal of the protease and 3' primer MFIVCPL33' (5'-CTGAGATCTGAGCAAGCTTTTACATTACTAATCT...

Ngày tải lên: 13/08/2014, 13:20

... disease categories with emphasis on ALI or ARDS Moreover, the heterogeneity of the clinical conditions exhibited by the patients at the time of investigation may be a limitation of the present study ... The explanation for this acoustic phenomenon might be related to an increase in ventilation distribution in the diaphragmatic part of the lungs at higher levels of PEEP or to the effect of other ... finding confirms that normalization of the acoustic distribution map reduces the mere effect of changes in ventilator settings when these changes not affect the relative airflow distribution Figure...

Ngày tải lên: 13/08/2014, 16:20

... and the significance of terms in the model was tested using the log-likelihood ratio test This test considers the ratio of the likelihood of the model with the parameter to the model without the ... comparison of the parameters in the treated and untreated experiments As a consequence, quantitative assessment of the effect of modifiers of DNA repair upon four distinct components of the radiation ... Fitting the SERD equation to these data indicated that the effect of the drug on the low-dose hyper-radiosensitivity parameter G was modest and did not reach statistical significance However, the...

Ngày tải lên: 13/08/2014, 16:21

... region of the hepatic plate, these agents generally damage the centrilobular region of the liver The toxicity of diquat is associated with a one electron reduction/oxidation reaction that is catalyzed ... application of toxicogenomics to the classification of toxicants and the investigation of mechanisms of toxicity, a full realization of its potential in a systems biology context, sometimes referred ... increasing trend from left to right in the figure The separation is not perfect, which is expected when one considers that this is only a portion of the biological response to treatment that these...

Ngày tải lên: 14/08/2014, 20:22

Ngày tải lên: 14/11/2014, 06:05

... interaction of the Zboson and the photon field with the quarks not change the flavour of the The symbol T in the superscript represents the transpose of the matrices 2.3 Top-antitop pair generation ... applied to the final state partons and, starting from the hardest parton, a geometrical match between the partons and the centroid of the jets is attempted If a parton does not match any jets, the ... as a function of the jet multiplicity in the ATLAS experiment, using √ proton-proton collisions at the center -of- mass energy of s = TeV The topantitop production with extra jets is the main background...

Ngày tải lên: 22/12/2014, 22:04

... With these assumptions, we can then solve the wave equations for the electromagnetic field distributions inside the cavity For the rectangular patch, the distribution is a function of the patch ... patches lie on the x-y plane In this formulation, we investigate the formulation of the Mutual Coupling against the variation of the distance between the patches in the x-direction 32 Making the ... Quality Factors Finding the Q-factor of the antenna is an important part of studying the antenna via the cavity model The total quality factor of the antenna, Q may be expressed in terms of the...

Ngày tải lên: 26/09/2015, 10:43

... Reverse Stock Splits Does the book-to-market ratio at the end of the year preceding the declaration of the reverse split impact the market return for the company? Listing of Research Hypotheses The ... announcement of a reverse stock split is independent of the company’s book-to-market ratio Significance of the Study One of the expected contributions from this study is the determination of whether ... value of the common stock and the market value of the common shares at the end of the year prior to the announcement of the reverse split The book value per share is computed by dividing the total...

Ngày tải lên: 30/09/2015, 16:58

... for their efforts in the data collection phase of this project, their assistance in the compilation of the master dataset and their constructive comments throughout the process This research was ... equipment When attaching the BP monitor, the BP cuff was placed with the demarcation arrow pointing at the vein on their arm, indicating proper positioning The participant was told that the BP ... (reverse of AC) The advantages of this computation were that equal weight was given to each of the constituent STAXI components and the resulting variable was automatically centered with a mean of...

Ngày tải lên: 02/10/2015, 22:48

... be essential for the transport of 3a to the cell surface, consistent with the role of these motifs in the transportation of other proteins to the plasma membrane [22] 3a on the cell surface can ... transcription and translation, post-translation modification and stability of the viral proteins, as well as their interactions with host factors Indeed, it is crucial to determine how this unique pathway ... internalization [13] Analyzing the experimental results present in these publications collectively, it is possible to postulate a functional role for the evolution of the SARS-CoV 3a protein The...

Ngày tải lên: 18/06/2014, 22:20

... be essential for the transport of 3a to the cell surface, consistent with the role of these motifs in the transportation of other proteins to the plasma membrane [22] 3a on the cell surface can ... transcription and translation, post-translation modification and stability of the viral proteins, as well as their interactions with host factors Indeed, it is crucial to determine how this unique pathway ... internalization [13] Analyzing the experimental results present in these publications collectively, it is possible to postulate a functional role for the evolution of the SARS-CoV 3a protein The...

Ngày tải lên: 20/06/2014, 04:20

... free tetraiodothyronine and normal thyroid-stimulating hormone, which confounds extrapolation of published data in this population We feel that future studies to evaluate this issue are warranted ... Critical Care October 2005 Vol No Wulkan et al from the study ‘Nonthyroidal illness’ is common in critically ill patients This disorder typically presents with low free triiodothyronine values, ... Competing interests The author(s) declare that they have no competing interests References 532 Villa P, Jiménez M, Soriano MC, Manzanares J, Casasnovas P: Serum cystatin C as a marker of acute...

Ngày tải lên: 12/08/2014, 22:21

... DDT and metabolites, and also HCHs and HCB Table shows TCDD’s contribution to the total TEQ fluctuates from 3.7–98.5% of the total TEQ The TCDD range in fish is from 16.9 –98.5% of the total TEQ ... 3.7–31.3% of the total TEQ Pork varied from 4.2–78% of the total TEQ from TCDD Table shows that the total TEQ on a lipid basis varies from 0.94 ppt in pork to 15,349 ppt in the fish, Channa striata ... ND—nondetected, limit of detection in brackets vives the dry season by burrowing in the bottom of lakes and subsisting on stored fat The toad had the fourth highest level of TCDD, 56 ppt, and a free-ranging...

Ngày tải lên: 27/06/2016, 20:28

Ngày tải lên: 04/10/2012, 10:24

... at fostering a "collective consciousness" The hallmark of this form of instruction is the lack of passive inattention, that often accompanies reading Here the students take turns being the "teacher" ... likely to be of most concern to them, as the written form is more formally bound than the spoken form Second, given the age group of our clients, they are almost certainly attending the course of their ... generate predictions, the amount of time necessary to generate a prediction may be greater than the amount of time the skilled reader needs to simply recognise the words" So, a total reliance on top-down...

Ngày tải lên: 06/09/2013, 10:10