fundamental properties of calcium phosphate precipitation

... sequestered CaP to form a calcium phosphate nanocluster (CPN) [1214] with a core of amorphous, acidic and hydrated calcium phosphate (ACP) of radius 2.4 nm surrounded by a shell of about 50 phosphopeptides ... this Calcium phosphate sequestration by osteopontin part of the sequence (eight of the total of 13), each of which produces a sharp change in chain direction in the cis conguration, and of Gly ... composition of milk J Theor Biol 101, 247261 Holt C, Wahlgren NM & Drakenberg T (1996) Ability of a beta-casein phosphopeptide to modulate the precipitation of calcium phosphate by forming amorphous dicalcium...

Ngày tải lên: 29/03/2014, 23:20

... flow rates of unstimulated whole saliva or concentrations of calcium and phosphate We chose to collect unstimulated whole saliva because this type of saliva predominates during most part of the day ... was found for secretion rate of saliva or concentrations of calcium and phosphate The values of the tested salivary parameters were within the international references of normality Competing interests ... salivary pH and the concentrations of the following parameters: total calcium, inorganic phosphate, and sIgA Salivary pH was determined by means of micro-electrodes of a blood gas analyzer that measured...

Ngày tải lên: 11/08/2014, 23:22

... Af M2DH Interpretation of the kinetic properties of an enzyme in the context of its role in cellular metabolism relies on knowledge of the physiological concentrations of substrates, products, ... intracellular concentration of Fru is about two orders of magnitude below the apparent Km of 40 mm A physiological role of AfM2DH in the utilization of intracellular Man-ol via reversal of path in Scheme ... comparison of polyol substrates of AfM2DH Fig S2 Comparison of the structural model of AfM2DH with the experimentally determined crystal structure of PsM2DH (1lj8) Fig S3 Kinetic analysis of inhibition...

Ngày tải lên: 14/03/2014, 23:20

... expression of the M tuberculosis tps gene in E coli, and the production of active TPS in these cells The properties of the recombinant enzyme have been determined, and are compared to the properties of ... formation of trehalose-P from the nucleoside diphosphate glucose (i.e UDP–glucose or GDP–glucose) produces a nucleoside diphosphate, i.e UDP or GDP, the effect of various nucleoside diphosphates ... glucose (G) shock Disruption of this gene did impair development of hyphae and did decrease the infectivity of the organism, but it was not lethal Thus, the rate of growth of the mutant at 30 °C was...

Ngày tải lên: 17/03/2014, 10:20

... Takeuchi H, Hirano M: In vivo study of a calcium phosphate cement consisting of alpha-tricalcium phosphate/ Page of 31 32 33 34 dicalcium phosphate dibasic/tetracalcium phosphate monoxide Biomaterials ... Carter D: Biomechanical evaluation of fixation of intra-articular fractures of the distal part of the radius in cadavera: Kirschner wires compared with calcium- phosphate bone cement J Bone Joint ... http://www.josr-online.com/content/5/1/29 avoid any additional donor-site morbidity Hydroset™ is composed of a mixture of tetracalcium phosphate, dicalcium phosphate dihydrate and trisodium citrate, which crystallizes to form hydroxyapatite...

Ngày tải lên: 20/06/2014, 04:20

... analyses of the effect of a new type of biomaterial, alpha-tricalcium phosphate cement, as compared to autogenous bone grafting, during bone repair in surgically created cavities Characteristics of ... study was conducted in the Laboratory of Experimental Surgery of the Oral and Max- Page of illofacial Surgery and Traumatology Discipline, School of Dentistry of Universidade Federal Rio Grande ... biomaterial used was produced in the Department of Materials of the School of Mechanical Engineering UFRGS Thirty precured, cylindrical blocks of alpha-tricalcium phosphate (alpha-TCP) with mm diameter...

Ngày tải lên: 11/08/2014, 20:20

... prevention of caries of adjacent tooth (Forsten, 1991) 15 Chapter 2.1 Development of GICs One of the main limitations of GICs is the lack of physico-mechanical properties This limits the use of GICs ... of environmental phosphate on acid degradation of GICs Moreover, the clinically related properties of wear resistance and shear strength of GICs in acidic conditions were also improved when phosphate ... mechanism of interaction between GICs and environmental calcium/ phosphate and pH 9.3 Future perspectives 162 References for Chapter to 171 Appendix A Preparation of storage media of varying calcium/ phosphate...

Ngày tải lên: 15/09/2015, 17:11

... operations Chapter 7- Properties of Convolution 127 2.0 a Original signal Amplitude 1.0 0.0 -1.0 FIGURE 7-3 Example of calculus-like operations The signal in (b) is the first difference of the signal ... curve of the form: sin(x)/(x) , is used to separate one band of frequencies from another c Sinc 0.3 Amplitude Amplitude 0.3 0.2 0.1 0.0 -0.1 -20 -15 -10 Sample number Chapter 7- Properties of Convolution ... affect any of the output signal values As shown by the examples in Fig 7-6, the impulse response of a causal system must have a value of zero for all negative numbered samples Think of this from...

Ngày tải lên: 13/09/2012, 09:49

... summary of the independent parameters the modified foaming apparatus FOAMING PROPER TIES used far experi- Nature Fixed Diameter Porosity Volume Volume Mass of of sparging disc of sparging disc of ... = Tw Did = = percent of gas initially in 70 ml of foam (gas Flow Rate) - ml/min of nitrogen time to fill the column with foam volume of liquid in the foam initially volume of liquid drained from ... characteristics of protein i.e the foaming capacity of protein and the stability and strength of the foam Foaming ability i.e Gi denotes the amount of gas retained in the foam reflecting the potential of...

Ngày tải lên: 16/12/2012, 15:10

... some of PAOs can that, the inhibitory effect of nitrite will be reduced Hence, the purpose of this study is to examine the effect of anoxic activity of PAOs on reduction of inhibitory effect of ... disappeared The phosphate uptake rate in the presence of nitrite was 13 mgP.gVSS-1.h-1 and the % activity of phosphate uptake was 39% On the other hands, in the case of AA with 1.9 mgN/gVSS of initial ... shown) and the recovery of phosphate uptake activity started just after nitrite disappearance Similarly, in the case of AO/N with 2.0 mgN/gVSS of initial nitrite concentration, phosphate uptake was...

Ngày tải lên: 05/09/2013, 09:38

... Advantec, Japan) for the analysis of As, Fe, Ca, Mg and P contents of the filtrate The amount of Ca and Mg adsorbed per gram of soil was calculated from the difference of Ca and Mg concentration in ... Concentrations of Ca and Mg Fig 1(a) clearly shows a decrease in the leaching of As with an increase in the added amount of Ca and Mg In the absence of Ca and Mg, leached As was 51.1 µg/L - 331 - Journal of ... average ± standard deviation of samples However, upon addition of 100 mg/L each of Ca and Mg leaching of As decreased to 24.6 and 23.3 µg/L, respectively Leaching of As was decreased to more than...

Ngày tải lên: 05/09/2013, 10:15

... University of Bari in 1979 University Researcher at the of Engines and Energy Institute of the Faculty of Engineering at the University of Bari from 1983 to 1987 Associate professor of Technical ... measure of conductance The analyses, done in the laboratory of Technical Physics of the Polytechnic of Bari, were performed on some samples of calcarenite sandstone and calcareous stone of Fasano ... typologies of building wall: a wall in blocks of calcarenite sandstone assembled with mortar, typical of the constructions of "Sassi of Matera," and a masonry made with dry calcareous stones of Fasano,...

Ngày tải lên: 05/09/2013, 14:58

... Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting on the linearity of load extension ... Increasing time of heatsetting had effect on tensile properties of PLA at varying times of 30s to 90s at temperature of 130°C Optimum effect on tensile properties occurred at times of 30 – 45s PLA ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve...

Ngày tải lên: 05/09/2013, 16:10

... pH Because most of the chemical and biochemical reaction are influenced by the pH it is of great practical importance The adverse affect of most of the acids appear below and of alkalis above ... determination is useful The value of Phosphate varies from minimum of 0.005mg/L (Jan) at Shiwala Ghat to maximum of 1.58mg/L (June) at Raj Ghat significantly lower phosphate content was recorded ... growth and activities of microorganism 3.6 Biological Oxygen demand It has been used as a measure of the amount of organic materialism an aquatic solution which support the growth of microorganism...

Ngày tải lên: 05/09/2013, 16:11

Ngày tải lên: 08/10/2013, 20:20

... owner of the derivative security should exercise it If he does not, then the seller of the security can immediately consume f Vk ! , + r IE Vk+1jF k ! and still maintain the hedge 6.2 Proofs of ... maintain the hedge 6.2 Proofs of the Properties Let fGk gn=0 be a sequence of non-negative random variables such that each Gk is F k -measurable k Define Tk to be the set of all stopping times satisfying ... Lemma 2.18 Proof: Take Vk  Gk for every k Tk to be the constant k Lemma 2.19 The process f1 + r,k Vk gn=0 is a supermartingale k Proof: Let  attain the maximum in the definition of Vk+1 , i.e.,...

Ngày tải lên: 18/10/2013, 03:20

... a series of captors), and are thus much noisier 250 Static properties of granular materials F r p h z Fig 14.13 Sketch of the experimental set-up of Reydellet et al for the measure of the pressure ... focused on the quasistatic rheology of a granular system, so why is all of this related to the description of its statics? As a matter of fact, the static properties of the studied sample are responsible ... horizontal position of the apex of the pile – also, changing the sign of x changes that of the shear σx z More generally, the stress state of the jammed grain packing is assumed to be of the form σx...

Ngày tải lên: 01/11/2013, 08:20

... Formaldehyde increases infectivity Viruses DNA or RNA  Shell of protein (capsid) surrounding nucleic acid   Classification on basis of nucleic acid  DNA viruses: eg Herpes simplex virus (HSV) ... body Varicella zoster virus (VZV) VZV: Chickenpox VZV: Shingles Re-activation of latent infection Suppression of cell mediated immunity Bacteria  Unicellular,  DNA and RNA  Binary  No prokaryotes ... (transfer of plasmid DNA) Important bacterial products 1: extracellular polysaccharide  CAPSULE condensed, well defined layer closely surrounding the cell contributes to invasiveness of pathogenic...

Ngày tải lên: 12/12/2013, 17:15

Ngày tải lên: 17/12/2013, 15:19