antibacterial properties of shrimp

... cationic properties of trappin-2 are important for its antibacterial activity. ADG BEH CFI Fig. 10. SEM analysis of the effect of trappin-2 on bacterial cells. Representative micrographs of S. aureus ... we have shown that the antibacterial ⁄ fungicidal properties of trappin-2 involve the cationic nature of the molecule, as assessed from the salt and heparin dependence of the antimicro- bial ... Laemmli UK (1970) Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature 227, 680–685. Antibacterial and antifungal activities of trappin-2 K. Baranger et...

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Ngày tải lên: 28/06/2014, 11:20

... Amplitude Amplitude The cutoff frequency of the filter is changed by making filter kernel wider or narrower. If a low-pass filter has a gain of one at DC (zero frequency), then the sum of all of the points ... cross-correlation of and cana[n](b[n] ' c[n] a[n] b[n] Chapter 7- Properties of Convolution 127 FIGURE 7-3 Example of calculus-like operations. The signal in (b) is the first difference of the signal ... the speed of DSP computers is often specified by how long it takes to preform a multiply-accumulate operation. If a signal composed of N samples is convolved with a signal composed of M samples,...

Ngày tải lên: 13/09/2012, 09:49

... Map of nursery sites in and the replacement of those sites by shrimp farming Tam Giang-Cau Hai lagoon system 23 ENVIRONMENTAL IMPACTS OF SHRIMP FARMING 3.1. Areal expansion 95% of shrimp ... do you (officers) accuse us (shrimp farmers) of illegal expansion, most of us (shrimp farmers) have no idea about provincial master plan of fishery and aquaculture, only some commune officers ... sets of questionnaires were developed for shrimp farmers, non -shrimp farmers and shrimp traders with emphasis on the stakeholders’ concerns about environmental and socio-economic impacts of shrimp...

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Ngày tải lên: 08/10/2013, 20:20

... maintain the hedge. 6.2 Proofs of the Properties Let fG k g n k=0 be a sequence of non-negative random variables such that each G k is F k -measurable. Define T k to be the set of all stopping times  satisfying k ... minfk ; V k = G k g: Proof: Recall the definition V 0 4 = max  2T 0 f IE 1 + r , G   = max  2T 0 V   0 Chapter 6 Properties of American Derivative Securities 6.1 The properties Definition ... + r , G  : The owner of the American derivative security can borrow this amount of money immediately, if he chooses, and invest in the market so as to exaclty pay off his debt as the payments fC j g n j...

Ngày tải lên: 18/10/2013, 03:20

... horizontal position of the apex of the pile – also, changing the sign of x changes that of the shear σ xz . More generally, the stress state of the jammed grain packing is assumed to be of the form σ xx = ... probably one of the issues that has been at the origin of the interest of many physicists for granular materials [359]. The last point of this subsection will be dedicated to the study of the stress ... Static properties of granular materials Fig. 14.6 Polar representation of the contact orientation distribution obtained in a numerical simulation of a granular layer prepared by a uniform ‘rain’ of...

Ngày tải lên: 01/11/2013, 08:20

... anaerobic, spores Clostridium spp Viruses  DNA or RNA  Shell of protein (capsid) surrounding nucleic acid  Classification on basis of nucleic acid  DNA viruses: eg Herpes simplex virus (HSV)  RNA ... Varicella zoster virus (VZV)  VZV: Chickenpox  VZV: Shingles  Re-activation of latent infection  Suppression of cell mediated immunity Fungi  Eukaryotes  Rigid chitinous cell walls  Antifungal ... unicellular, budding reproduction  eg Candida, Cryptococcus RNA viruses: Influenza Nature and Properties of Micro-organisms Laura JV Piddock Viruses  Obligate intracellular parasites  Use host...

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Ngày tải lên: 17/12/2013, 15:19

... Inc. Æ À1 ¼1=5boundaryisoneinwhich1in5ofthegrainboundaryatoms match,asshowninFig.2.8(c). Twinboundariesmayformwithincrystals.Suchboundarieslieacross deformationtwinplanes,asshowninFig.2.8(d).Notethattheatomson eithersideofthetwinplanesaremirrorimages.Stackingfaultsmayalsobe formedwhentheperfectstackinginthecrystallinestackingsequenceis disturbed,Figs2.8(e)and2.8(f).Thesemaybethoughtofastheabsence ofaplaneofatoms(intrinsicstackingfaults)ortheinsertionofrowsof atomsthatdisturbthearrangementofatoms(extrinsicstackingfaults). IntrinsicandextrinsicstackingfaultsareillustratedschematicallyinFigs 2.8(e)and2.8(f),respectively.NotehowtheperfectABCABCstackingof atomsisdisturbedbytheinsertionorabsenceofrowsofatoms. 2.3.4VolumeDefects Volumedefectsareimperfectionssuchasvoids,bubble/gasentrapments, porosity,inclusions,precipitates,andcracks.Theymaybeintroducedintoa solidduringprocessingorfabricationprocesses.Anexampleofvolume defectsispresentedinFig.2.9.ThisshowsMnSinclusionsinanA707 steel.AnotherexampleofavolumedefectispresentedinFig.1.16(d). This ... approximately 0.3–0.5 of the melting temperature in degrees Kelvin. Since the evolution of microstructure is often controlled by diffusion processes, a brief introduction to elementary aspects of diffusion ... model of grain growth may be developed by using an analogy of growing soap bubbles. We assume that the growth of the soap bubbles (analogous to grains) is driven primarily by the surface energy of...

Ngày tải lên: 23/12/2013, 00:15

... Inc. 2 DefectStructureandMechanical Properties 2.1INTRODUCTION Sincethemechanicalbehaviorofsolidsisoftencontrolledbydefects,abrief reviewofthedifferenttypesofdefectsispresentedinthischapteralongwith theindicialnotationthatisoftenusedinthecharacterizationofatomic planesanddimensions.Thepossibledefectlengthscalesarealsodiscussed beforepresentingabriefintroductiontodiffusion-controlledphasetrans- formations.Finally,anoverviewofthemechanicalbehaviorofmaterialsis presentedinanefforttopreparethereaderformoredetaileddiscussionin subsequentchapters.Thematerialdescribedinthischapterisintendedfor thosewithlimitedpriorbackgroundintheprinciplesofmaterialsscience. Thebetterpreparedreadermay,therefore,choosetoskimthischapterand moveontoChap.3inwhichthefundamentalsofstressandstrainare presented. 2.2 ... macroscopic level of understanding of structure [Figs 16(a)–(d)]. They are often unaware of the atomic and micro- structural constituents that can affect the mechanical behavior of materials and of the ... mechanical properties of mate- rials. It is not intended to be a comprehensive review of all the different aspects of mechanical properties; such a task would be beyond the capabil- ities of any...

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