Biofilm formation and its induced biocorrosion of metals in seawater

... sulphate-reducing bacteria (SRB) strain from local seawater, (ii) investigating bacteria-metal interactions, (iii) investigating biofilm and its induced biocorrosion of two SRB strains on stainless ... coating 20 Chapter Introduction 1.5 Objectives and Scope of This Work The aims of this thesis are to examine the role of microorganisms in biofilm formation and it...

Ngày tải lên: 12/09/2015, 09:08

... process of biocorrosion since 1960s According to Beech (2003), sulfate reducing bacteria (SRB), iron/manganese oxidizing bacteria, iron reducing bacteria, sulfur oxidizing bacteria and bacteria ... is produced and biofilm is formed and 4: biofilm thickens via transport processes and chemical reactions 5: Biofilm detachment and inoculation of new generation...

Ngày tải lên: 16/10/2015, 15:38

... Effect of aggregation and flow reduction on mean and SD of cell- free layer widths 60 (d) Effect of aggregation and flow reduction on dynamics of cell- free layer formation ... EFFECT OF RED BLOOD CELL AGGREGATION ON ARTERIOLAR CELL- FREE LAYER FORMATION AND ITS PHYSIOLOGICAL FUNCTIONS ONG PENG KAI (B.Eng.(Hons.),NUS) A THES...

Ngày tải lên: 10/09/2015, 15:52

... FprA unfolding A Trp Emm Max (nm) temperature For native FprA, a broad sigmoidal transition between 30 and 65 °C having an apparent Tm (mid point of thermal denaturation) of  49 °C and a loss of ... presence of increasing concentrations of GdmCl In (A) circles and squares represent data for native and 0.2 M CaCl2-stabilized FprA, respectively changes in enzy...

Ngày tải lên: 19/02/2014, 16:20

... also be involved in the pro-oxidant action of urate Interestingly, at high Cu2+ concentration, in the presence of 0.5 lM quercetin and 10 lM urate, the LDL oxidation measured in terms of MDA and ... suppose that in the absence of quercetin the prooxidant activity of urate masks its antioxidant activity as mentioned above, whereas, in the presence of...

Ngày tải lên: 23/03/2014, 12:20

... fingerprints of trypsin digests of the spots of interest obtained with MALDI-TOF, followed by a database search with the Mascot software for peptide mapping result) and matching of our protein maps ... documented by differential interference contrast Results In this study we focused on the detection of tyrosine oxidation of the intracellular proteins on oxidative stress...

Ngày tải lên: 23/03/2014, 15:21

... inactivation of wild-type CTPS by trypsin (A) Inactivation of CTPS-catalysed NH3-dependent CTP formation in the absence of ligands (s) and in the presence of ATP (10 mM, n), UTP (10 mM, h), and ... mutant CTP synthases The values of apparent kcat for the hydrolysis of glutamine by K187A (d) and R429A (s) apparent CTP synthases are shown Inset: values of kcat...

Ngày tải lên: 23/03/2014, 17:22

... difference Analysis of two-dimensional crystals The study of negatively stained intact inside-out paired membranes can give interesting insight into the packing and ordering of PSII supercomplexes, ... packing of the supercomplex is very similar to the packing in the crystals, as is shown in the fitting of crystal features into the spinach type III megacomplex (Fig 4F) Finally,...

Ngày tải lên: 24/03/2014, 04:21

... planning for the Symposium on Electronic Scientific, Technical, and Medical Journal Publishing and Its Implications, which was held May 19-20, 2003, at the National Academy of Sciences in Washington, ... early adopters reap the benefits of innovation in attracting authors and readers Eventually, many of the innovative features become generally adopted, and usual...

Ngày tải lên: 29/03/2014, 11:20

... study [57], the already observed pro-oxidant activity of urate [58] It is unlikely that the pro-oxidant activity of urate is due to the reaction of urate with O2 , as little urate is destroyed in ... relating Cu2+ redox change to the initiation of LPO in LDL are not yet clearly established [40] In the presence of pre-existing traces of hydroperoxides both Cu2+ a...

Ngày tải lên: 31/03/2014, 08:20

... fundamental knowledge of different methods of productions / heat treatments of magnesium alloys and the use of various types of cast and wrought magnesium alloys • The influences of alloy composition, ... Oxide film of magnesium are not stable in solution with pH

Ngày tải lên: 06/07/2014, 09:20

... and its associated strong anthropogenic pressure influencing the landscape structures in the vicinity of the linear construction in the form of a motorway, and especially due to the accompanying ... based on their spatial and technical characteristics The aim was to obtain information on the migration of wildlife in relation to change in the l...

Ngày tải lên: 07/08/2014, 10:21

... 45 50 and 336 15 19 and 336 NT * 1 total 89 14 107 * nontypeable Table Expression of CP from type and strains of S aureus isolates Capsular Colony No of ELISA inhibition type morphology strains ... model of staphylococcal infection polysaccharide typing and purification of S aureus Acknowledgments: We are grateful to Dr Guidry AJ (United States Department of Ag...

Ngày tải lên: 07/08/2014, 14:23

... N, Fujii Y, Gonoi T, Miyazaki J, Seino S Cloning and functional characterization of a third pituitary adenylate cyclaseactivating polypeptide receptor subtype expressed in insulinsecreting cells ... not offer any information as to the distribution of PACAP and PAC1 receptor in human placenta at various gestations, during pregnancy In this study, we utilized in situ...

Ngày tải lên: 07/08/2014, 18:21

... water and nutrients for shoot extension and leaf expansion (Bond, 1945) Interpretation of the data for lateral branch production by sections of shoot formed during FIRST, SECOND and SPRING flushes ... showing flushes On those showing a single SPRING flush, branches will be concentrated at the tip of the annual increment in length whereas there will be centres of branchin...

Ngày tải lên: 08/08/2014, 23:22