Query: g.p. nason

title: G.P. Nason: Wavelet Methods in Statistics with r

title: Wavelet Methods in Statistics with R by G.P. Nason

title: The nature and significance of pseudotachylite from the Nason terrane, North Cascade Mountains, Washington
abstract: Pseudotachylite has been recently discovered at numerous localities in the Nason terrane of the North Cascade Mountains, Washington. The pseudotachylite is widespread, not associated with any single major fault or shear zone, and tends to occur in narrow foliation parallel zones. Single pseudotachylite veins range in thickness from less than 0.1 to 10 cm. Veins and networks of veins occur in six distinct types, and these form the basis of a suggested classification scheme. Multiple generations of pseudotachylite are present in some samples. Host lithologies include quartz diorite, semipelitic schist, tonalite, amphibolite and especially graphitic pelitic schist. Glassy veins are rare; most pseudotachylite is apparently holocrystalline. Spherulites, vesicles and dendritic microphenocrysts are present and indicate a frictional melt origin. The ubiquitous occurrence of cataclasite xenoliths within the pseudotachylite, along with other textural observations, indicates that in the Nason terrane, the development of cataclasite zones was the precursor to pseudotachylite generation. It is inferred that cataclastic deformation of the schist provided the strain softening which resulted in faulting and pseudotachylite generation. The water rich and ultra fine grained matrix of the cataclasite was an ideal starting material for pseudotachylite generation. Based upon bulk chemistry of host lithologies and microprobe analyses of the pseudotachylite, it appears that the pseudotachylite formed as a result of a virtually complete melting of the pelitic (i.e. non quartz vein) component of the schist. Where pseudotachylite occurs within pelitic schist alone, the composition of the pseudotachylite is very similar to the pelitic component of the schist, while the composition of veins cutting tonalite gneiss in addition to pelitic schist appears to define a mixing line between these two lithologies. This suggests either participation of the tonalite during initial melting, or subsequent assimilation of gneiss into the melt.

title: Review of Particle Physics, 2016 2017
abstract: The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,283 new measurements from 899 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as heavy neutrinos, supersymmetric and technicolor particles, axions, dark photons, etc. All the particle properties and search limits are listed in  We also give numerous tables, figures, formulae, and reviews of topics such as Supersymmetry, Extra Dimensions, Particle Detectors, Probability, and Statistics. Among the 112 reviews are many that are new or heavily revised including those on: Dark Energy, Higgs Boson Physics, Electroweak Model, Neutrino Cross Section Measurements, Monte Carlo Neutrino Generators, Top Quark, Dark Matter, Dynamical Electroweak Symmetry Breaking, Accelerator Physics of Colliders, High Energy Collider Parameters, Big Bang Nucleosynthesis, Astrophysical Constants and Cosmological Parameters. All tables, listings, and reviews (and errata) are also available on the Particle Data Group website: http:/pdg.lbl.gov.

title: A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
abstract: In this work we illustrate the POWHEG BOX, a general computer code framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. Aim of this work is to provide an illustration of the needed theoretical ingredients, a view of how the code is organized and a description of what a user should provide in order to use it.

title: APS Review of Particle Physics, 2018
abstract: The complete Review(both volumes) is published online on the website of the Particle Data Group(http:/pdg.lbl.gov) and in a journal. Volume 1 is available in print as thePDG Book. AParticle Physics Bookletwith the Summary Tables and essential tables, figures, and equations from selected review articles is also available.

title: Nanoparticle aggregation in a freshwater river: the role of engineered surface coatings
abstract: Within aquatic environments, the aggregation of ENPs has been identified as an important process affecting their environmental fate. Previous research using simple model mediums has demonstrated that engineered surface coatings applied to ENPs can alter their aggregation behavior. However, the relevance and effect of these surface coatings on ENPs dispersed in complex aquatic mediums is largely unknown. The objective of the current work was to explore this topic further using gold nanoparticles (AuNPs) with different engineered surface coatings as model ENPs. AuNPs with neutral or negatively charged, covalently bound surface coatings (polyethylene glycol [PEG] or carboxylated PEG, respectively) were found to be stable in both raw and filtered river water, while AuNPs with positively charged (branched polyethylenimine, aminated PEG) or electrostatically bound (citrate) surface coatings readily aggregated. For the model ENPs that aggregated, their average percent removal after mixing in the filtered river water was similar to that measured after the same period in raw river water, revealing that homoaggregation was dominant relative to heteroaggregation. To quantify the effect of the surface coatings on the colloidal stability of the model ENPs, we attempted to estimate homo and heteroaggregation attachment efficiency factors (ahomo and ahetero, respectively) using a recently reported functional assay. A number of challenges preventing these direct calculations in this system are discussed. However, from modelling it was inferred that ahomo ahetero. We find that ENP colloidal stability was related to eco corona formation (i.e. adsorption of natural organic matter) which was regulated by the properties of the engineered surface coatings. Overall, the results of the batch experiments demonstrate that engineered surface coatings can affect ENP colloidal stability in a complex medium, further highlighting the need to consider this factor when investigating the environmental fate of ENPs.

title: A new method for combining NLO QCD with shower Monte Carlo algorithms
abstract: I show that with simple extensions of the shower algorithms in Monte Carlo programs, one can implement NLO corrections to the hardest emission that overcome the problems of negative weighted events found in previous implementations. Simple variants of the same method can be used for an improved treatment of matrix element corrections in Shower Monte Carlo programs.

title: The Ties That Unbind: Socialization and Business Owning Family Reference Point Shift
abstract: Existing theory describes how family firms utilize a unique socioemotional reference point to frame strategic decision making, but scholars have not fully considered family level strategy or change.

title: Rational Design of Envelope Identifies Broadly Neutralizing Human Monoclonal Antibodies to HIV 1
abstract: Designer Anti HIV Developing a protective HIV vaccine remains a top global health priority. One strategy to identify potential vaccine candidates is to isolate broadly neutralizing antibodies from infected individuals and then attempt to elicit the same antibody response through vaccination (see the Perspective by Burton and Weiss) Wu et al. (p. 856, published online 8 July) now report the identification of three broadly neutralizing antibodies, isolated from an HIV 1 infected individual, that exhibited great breadth and potency of neutralization and were specific for the co receptor CD4 binding site of the glycoprotein 120 (gp120) part of the viral Env spike. Zhou et al. (p. 811, published online 8 July) analyzed the crystal structure for one of these antibodies, VRC01, in complex with an HIV 1 gp120. VRC01 focuses its binding onto a conformationally invariant domain that is the site of initial CD4 attachment, which allows the antibody to overcome the glycan and conformational masking that diminishes the neutralization potency of most CD4 binding site antibodies. The epitopes recognized by these antibodies suggest potential immunogens that can inform vaccine design. A human antibody achieves broad neutralization by binding the viral site of recognition for the primary host receptor, CD4. Cross reactive neutralizing antibodies (NAbs) are found in the sera of many HIV 1 infected individuals, but the virologic basis of their neutralization remains poorly understood. We used knowledge of HIV 1 envelope structure to develop antigenically resurfaced glycoproteins specific for the structurally conserved site of initial CD4 receptor binding. These probes were used to identify sera with NAbs to the CD4 binding site (CD4bs) and to isolate individual B cells from such an HIV 1 infected donor. By expressing immunoglobulin genes from individual cells, we identified three monoclonal antibodies, including a pair of somatic variants that neutralized over 90% of circulating HIV 1 isolates. Exceptionally broad HIV 1 neutralization can be achieved with individual antibodies targeted to the functionally conserved CD4bs of glycoprotein 120, an important insight for future HIV 1 vaccine design.