Addition theorems for spin spherical harmonics. II Results

Based on the results of part I, we obtain the general form of the addition theorem for spin spherical harmonics and give explicit results in the cases involving one spin-$s'$ and one spin-$s$ spherical harmonics with $s',s=1/2$, 1, 3/2, and $|s'-s|=0$, 1. We obtain also a fully general addition theorem for one scalar and one tensor spherical harmonic of arbitrary rank. A variety of bilocal sums of ordinary and spin spherical harmonics are given in explicit form, including a general explicit expression for bilocal spherical harmonics

Addition theorems for spin spherical harmonics. I Preliminaries

We develop a systematic approach to deriving addition theorems for, and some other bilocal sums of, spin spherical harmonics. In this first part we establish some necessary technical results. We discuss the factorization of orbital and spin degrees of freedom in certain products of Clebsch-Gordan coefficients, and obtain general explicit results for the matrix elements in configuration space of tensor products of arbitrary rank of the position and angular-momentum operators. These results are the basis of the addition theorems for spin spherical harmonics obtained in part II

Un modelo Poissoniano para predecir la matriculación de vehículos en países europeos

En este artículo presentamos una modelización para la matriculación de vehículos en países de Europa mediante un proceso de Poisson Doblemente Estocástico con media aleatoria Normal truncada. Apoyándonos en trabajos previos acerca de este proceso, se amplía el estudio de características de éste. Asímismo, se hace una predicción de este proceso para los años 2000 y 2001

Intermittency in Branching Processes

We study the intermittency properties of two branching processes, one with a uniform and another with a singular splitting kernel. The asymptotic intermittency indices, as well as the leading corrections to the asymptotic linear regime are explicitly computed in an analytic framework. Both models are found to possess a monofractal spectrum with $\varphi_{q}=q-1$. Relations with previous results are discussed.Comment: 20 pages, UCLA93/TEP/2

Alkylphenols and polycyclic aromatic hydrocarbons in eastern Mediterranean Spanish coastal marine bivalves

This paper reports the first results on alkylphenol pollution in edible bivalves from the Spanish coast. Two sampling campaigns (July 2006 and July 2007) were carried out to determine the concentration of nonylphenol (NP), octylphenol (OP), and eight polycyclic aromatic hydrocarbons (PAHs) in wild mussels (Mytilus galloprovincialys) and clams (Donax trunculus) at 14 sampling sites along the eastern Mediterranean Spanish coast. The results show that NP is the predominant alkylphenol, being the port of Valencia the most polluted area (up to 147 mu g/kg wet weight in clams). Moving away from the ports the concentration of NP in bivalves decreased. OP concentration was below its detection limit in most of the studied areas and its maximum concentration (6 mu g/kg w/w) was measured in clams from the port of Sagunto. The presence of low levels of PAHs was observed in most of the studied areas. The total PAHs concentration (i.e., sum of the eight measured PAHs) achieved a maximum value of 10.09 mu g/kg w/w in the north coast of Valencia city. The distribution pattern of the individual PAHs showed that both pollution sources petrogenic and pyrolytic were present in the sampled areas. Fluoranthene was the most abundant PAH in mussels while benzo(b)fluoranthene in clams. The maximum concentration of 10 mu g/kg w/w for benzo(a)pyrene established by the European Commission was never reached, indeed sampled bivalves showed concentrations 10 times lower than this reference value. Thus, they can be considered safe for human consumption. Despite the low contamination levels, the results show an overall pollution of bivalves by alkylphenol and PAHs as well as an increment in the number of polluted areas from 2006 to 2007. Thus, periodical sampling campaigns should be carried out to monitor the long-term tendency of these toxic and persistent pollutants. © 2010 Springer Science+Business Media B.V.Financial support from Conselleria de Medio Ambiente, Agua, Urbanismo y Vivienda de la Generalitat Valenciana (Application of Water Framework Directive 2000/60/EC on endocrine disruptors and priority substances in coastal areas in the Comunidad Valenciana) is gratefully acknowledged.Bouzas Blanco, A.; Aguado García, D.; Martí Ortega, N.; Pastor, J.; Herraez, R.; Campins, P.; Seco Torrecillas, A. (2011). Alkylphenols and polycyclic aromatic hydrocarbons in eastern Mediterranean Spanish coastal marine bivalves. Environmental Monitoring and Assessment. 176(1-4):169-181. doi:10.1007/s10661-010-1574-5S1691811761-4Antizar-Ladislao, B. (2009). Polycyclic aromatic hydrocarbons, polycholirnated biphenyls, phthalates and organotins in northern Atlantic Spain’s coastal marine sediments. 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POPs in edible clams from different Italian and European markets and possible human health risk. Marine Pollution Bulletin, 46, 879–886.Boscolo, R., Cacciatore, F., & Giovanardi, O. (2007). Polycyclic aromatic hydrocarbons (PAHs) in transplanted Manila clams (Tapes philippinarum) from the Lagoon of Venice as assessed by PAHs/shell weight index: A preliminary study. Marine Pollution Bulletin, 55, 485–493.Campíns, P., Verdú, J., Sevillano, A., Molins, C., & Herráez, R. (2008). New micromethod combining miniaturized matrix solid-phase dispersion and in-tube in-valve solid-phase microextraction for estimating polycyclic aromatic hydrocarbons in bivalves. Journal of Chromatography A, 1211, 13–21.David, A., Fenet, H., & Gomez, E. (2009). Alkylphenols in marine environments: Distribution monitoring strategies and detection considerations. Marine Pollution Bulletin. doi: 10.1016/j.marpolbul.2009.04.021 .EC (2000). Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for community action in the field of water policy. Official Journal of the European Communities, L, 327, 1.EC (2005). Commission regulation (EC) No 2008/2005 of 4 February 2005 amending Regulation (EC) No 466/2001 as regards polycyclic aromatic hydrocarbons. Official Journal of the European Communities, L, 34, 3.Ferrara, F., Fabietti, F., Delise, M., Piccioli-Bocca, A., & Funari, E. (2001). Alkylphenolic compounds in edible mollusc of the Adriatic Sea (Italy). Environmental Science and Technology, 35, 3109–3112.Francioni, E., A. de L. R., Wagener, Scofield, A. L., Depledge, M. H., & Cavalier, B. (2007). Evaluation of the mussel Perna perna as a biomonitor of polycyclic aromatic hydrocarbon (PAH) exposure and effects. Marine Pollution Bulletin, 54, 329–338.Gilroy, D. J. (2000). Derivation of shellfish harvest reopening criteria following the new Carissa oil spill in Coos Bay, Oregon. Journal of Toxicology and Environmental Health, 60, 317–329.Goldberg, E. D., & Bertine, K. K. (2000). Beyond the mussel watch—New directions for monitoring marine. Science of the Total Environment, 247, 165–174.Grandby, K., & Spliid, N. H. (1995). Hydrocarbon and organochlorines in common mussels from the Kattegat and the Belts and their relation to condition indices. Marine Pollution Bulletin, 30, 74–82.Isobe, T., Nishiyama, H., Nakashima, A., & Takada, H. (2001). Distribution and behavior of nonylphenol, octylphenol, and nonylphenol monoethoxylate in Tokyo metropolitan area: Their association with aquatic particles and sedimentary distributions. Environmental Science and Technology, 35, 1041–1049.Isobe, T., Takada, H., Kanai, M., Tsutsumi, S., Isobe, K. O., Boonyatumanond, R., et al. (2007). Distribution of polycyclic aromatic hydrocarbons (PAHs) and phenolic endocrine disrupting chemicals in South and Southeast Asian mussels. Environmental Monitoring Assessment, 135, 423–440.Jackson, J. E. (2003). A user’s guide to principal components. NJ: Wiley.Khairy, M. A., Kolb, M., Mostafa, A. R., EL-Fiky, A., & Bahadir, M. (2009). Risk assessment of polycyclic aromatic hydrocarbons in a Mediterranean semienclosed basin affected by human activities (Abu Qui Bay, Egypt). Journal of Hazardous Material. doi: 10.1016/j.jhazmat.2009.04.084 .Koh, C. H., Khim, J. S., Kannan, K., Villeneuve, D. L., Senthil Kumar, K., & Giesy, J. P. (2004). Polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) and 2,3,7,8-TCDD equivalents (TEQs) in sediment from the Hyeongsan River, Korea. Environmental Pollution, 132, 489–501.Law, R. J., Kelly, C. A., Baker, K. L., Langford, K. H., & Bartlett, T. (2002). Polycyclic aromatic hydrocarbons in sediments, mussels and crustacea around a former gasworks site in Shoreham-by-Sea, UK. Marine Pollution Bulletin, 44, 903–911.Li, D., Dong, M., Shim, W. J., Yim, U. H., Hong, S., & Kannan, N. (2008). Distribution characteristics of nonylphenolic chemicals in Masan Bay environments. Korea. Chemosphere, 71, 1162–1172.Massara Paletto, V., Commendatore, M. G., & Esteves, J. L. (2008). Hydrocarbon levels in sediments and bivalve mollusks from Bahía Nueva (Patagonia, Argentina): An assessment of probable origin and bioaccumulation factors. Baseline/Marine Pollution Bulletin, 56, 2082–2105.Navarro, A., Endo, S., Gocht, T., Barth, J. A. C., Lacorte, S., Barceló, D., et al. (2009). Sorption of alkylphenols on Ebro River sediments: Comparing isotherms with field observations in river water and sediments. Environmental Pollution, 157, 698–703.Nesto, N., Romano, S., Moschino, V., Mauri, M., & Da Ros, L. (2007). Bioaccumulation and biomarker responses of trace metals and micro-organic pollutants in mussels and fish from the Lagoon of Venice, Italy. Marine Pollution Bulletin, 55, 469–484.OSPAR Commision (2000). Quality Status Report 2000. London: OSPAR.Palma-Fleming, H., Asencio, A. J., & Gutierrez, E. (2004). Polycyclic aromatic hydrocarbons in sediments and mussels of Corral Bay, south central Chile. Journal of Environmental Monitoring, 6, 229–233.Senthil Kumar, K., Sajwan, K. S., Richardson, J. P., & Kannan, K. (2008). Contamination profiles of heavy metals, organochlorine pesticides, polycyclic aromatic hydrocarbons and alkylphenols in sediment and oyster collected from marsh/estuarine Savannah GA, USA. Marine Pollution Bulletin, 56, 136–162.Solé, M., Porte, C., Barceló, D., & Albigés (2000). Bivalves residue analysis for the assessment of coastal pollution in the Ebro Delta (NW Mediterranean). Marine Pollution Bulletin, 40(9), 746–753.Soares, A., Guieysse, B., Jefferson, B., Cartmell, E., & Lester, J. N. (2008). Nonylphenol in the environment: A critical review on occurrence, fate, toxicity and treatment in wastewaters. Environmental International, 34, 1033–1049.Soriano, J. A., Viñas, L., Franco, M. A., González, J. J., Ortiz, L., Bayona, J. M., et al. (2006). Spatial and temporal trends of petroleum hydrocarbons in wild mussels from the Galician coast (NW Spain) affected by the Prestige oil spill. Science of the Total Environment, 370, 80–90.White, K. L. (1986). An overview of immunotoxicology and carcinogenic polycyclic aromatic hydrocarbons. Journal of Environmental Science and Health. Part C: Environmental Carcinogenesis & Ecotoxicology Reviews, 2, 163–202

B --> pi and B --> K transitions in partially quenched chiral perturbation theory

We study the properties of the B-->pi and B-->K transition form factors in partially quenched QCD by using the approach of partially quenched chiral perturbation theory combined with the static heavy quark limit. We show that the form factors change almost linearly when varying the value of the sea quark mass, whereas the dependence on the valence quark mass contains both the standard and chirally divergent (quenched) logarithms. A simple strategy for the chiral extrapolations in the lattice studies with Nsea=2 is suggested. It consists of the linear extrapolations from the realistically accessible quark masses, first in the sea and then in the valence quark mass. From the present approach, we estimate the uncertainty induced by such extrapolations to be within 5%.Comment: Published versio

Multiplicity Distributions and Rapidity Gaps

I examine the phenomenology of particle multiplicity distributions, with special emphasis on the low multiplicities that are a background in the study of rapidity gaps. In particular, I analyze the multiplicity distribution in a rapidity interval between two jets, using the HERWIG QCD simulation with some necessary modifications. The distribution is not of the negative binomial form, and displays an anomalous enhancement at zero multiplicity. Some useful mathematical tools for working with multiplicity distributions are presented. It is demonstrated that ignoring particles with pt<0.2 has theoretical advantages, in addition to being convenient experimentally.Comment: 24 pages, LaTeX, MSUHEP/94071

Dynamic soluble changes in sVEGFR1, HGF, and VEGF promote chemotherapy and bevacizumab resistance: A prospective translational study in the BECOX (GEMCAD 09-01) trial

Despite initial responsiveness, acquired resistance to both bevacizumab and chemotherapy in metastatic colorectal cancer is universal. We have recently published that in vitro, chronically oxaliplatin resistance upregulates soluble vascular endothelial growth factor receptor 1, downregulates vascular endothelial growth factor, and also promotes c-MET, b-ca catenin/transcription factor 4, and AKT activation. We tested whether variation in three serum biomarkers such as the natural c-MET ligand (hepatocyte growth factor), soluble vascular endothelial growth factor receptor 1, and vascular endothelial growth factor-A was associated with efficacy in metastatic colorectal cancer patients treated in the prospective BECOX study. Serum levels of vascular endothelial growth factor-A165, soluble vascular endothelial growth factor receptor 1, and hepatocyte growth factor were assessed by enzyme-linked immunosorbent assay method basally and every 3 cycles (at the time of computed tomography evaluation) in a preplanned translational study in the first-line BECOX trial in metastatic colorectal cancer patients treated with CAPOX plus bevacizumab. Response was evaluated by routine contrast-enhanced computed tomography by RECIST 1.1 by investigator assessment and by three blinded independent radiologists. Ratios between soluble vascular endothelial growth factor receptor 1/vascular endothelial growth factor-A and hepatocyte growth factor/vascular endothelial growth factor-A were established and variations through time were related to RECIST 1.1 by investigator assessment and independent radiologist. The BECOX trial included 68 patients, and 27 patients were analyzed in the translational trial. A total of 80 RECIST 1.1 evaluations were done by investigator assessment and 56 by independent radiologist. We found that a 3.22-fold increase in soluble vascular endothelial growth factor receptor 1/vascular endothelial growth factor-A by investigator assessment and a 3.06-fold increase in soluble vascular endothelial growth factor receptor 1/vascular endothelial growth factor-A by independent radiologist from previous determination were associated with responses compared with 1.38-fold increase by investigator assessment and 1.59 by independent radiologist in non-responders (p= 0.0009 and p = 0.03, respectively). Responders had a 3.36-fold increase in hepatocyte growth factor/vascular endothelial growth factor-A from previous determination by investigator assessment and 3.66-fold increase in hepatocyte growth factor/vascular endothelial growth factor-A by independent radiologist compared with 1.43-fold increase by investigator assessment and 1.53 by independent radiologist for non-responders (p = 0.002 and 0.003, respectively). In conclusion, a decrease in vascular endothelial growth factor-A and an increase in soluble vascular endothelial growth factor receptor 1 during chemotherapy and bevacizumab exposure can contribute to both chemotherapy (due to c- MET/b-catenin activation) and bevacizumab (due to low vascular endothelial growth factor requirements) resistance. Because hepatocyte growth factor levels decrease also during acquired resistance, alternative strategies to hepatocyte growth factor–ligand inhibition should be investigatedThis work was supported by “beca SEOM a Jóvenes Investigadores 2009” and by the Emili Letang fellowship to Estela Pineda

Hadron Spectra for Semileptonic Heavy Quark Decay

We calculate the leading perturbative and power corrections to the hadronic invariant mass and energy spectra in semileptonic heavy hadron decays. We apply our results to the $B$ system. Moments of the invariant mass spectrum, which vanish in the parton model, probe gluon bremsstrahlung and nonperturbative effects. Combining our results with recent data on $B$ meson branching ratios, we obtain a lower bound $\bar\Lambda>410\,{\rm MeV}$ and an upper bound $m_b^{\rm pole}<4.89\,$GeV. The Brodsky-Lepage-Mackenzie scale setting procedure suggests that higher order perturbative corrections are small for bottom decay, and even tractable for charm decay.Comment: 24 pages, uses REVTeX, 5 EPS figures embedded with epsf.sty, slightly modified version to appear in Phys. Rev.

A SURVEY of CHRONIC GVHD and OTHER OUTCOMES - A SNAPSHOT of BRAZILIAN ALLOGENEIC HEMATOPOIETIC CELL TRANSPLANTATION (HCT) CENTERS

Univ Fed Parana, BR-80060000 Curitiba, Parana, BrazilNatl Canc Inst, Rio de Janeiro, BrazilState Univ São Paulo, São Paulo, BrazilUniv Estadual Campinas, Campina, BrazilUniv Fed Rio de Janeiro, Rio de Janeiro, BrazilAmaral Carvalho Hosp, Jau, BrazilAmaral Carvalho Hosp, São Paulo, BrazilUniversidade Federal de São Paulo, São Paulo, BrazilAlbert Einstein Hosp, São Paulo, BrazilCanc Hosp Barretos, São Paulo, BrazilUniv Fed Rio Grande do Sul, Porto Alegre, RS, BrazilPernambuco Blood Bank, Recife, PE, BrazilUniv Fed Minas Gerais, Belo Horizonte, MG, BrazilUniv State Univ São Paulo, Ribeirao Preto, BrazilFred Hutchinson Canc Res Ctr, Seattle, WA 98104 USAUniversidade Federal de São Paulo, São Paulo, BrazilWeb of Scienc