Parent Resource Packet - A Guide for New Parents

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Photon-propagation model with random background field: Length scales and Cherenkov limits

We present improved experimental bounds on typical length scales of a photon-propagation model with a frozen (time-independent) random background field, which could result from anomalous effects of a static, multiply connected spacetime foam.Comment: 6 pages with revtex4; v3: final versio

Sea-quark flavor asymmetry in the nucleon from a relativistic analysis of the Drell-Yan scattering off nuclei

It is shown that accounting for the relativistic structure of the deuteron allows to explain the ratio of the Drell-Yan pair production cross-section at the low Bjorken $x$ off the deuteron and the proton. Thus, the sea quark distributions in the nucleon should be studied with accounting for the effects of the relativistic structure of the deuteron. The suggested approach reduces theoretical uncertainty in extracting the ratio $\bar u/\bar d$ from the data and it is important for the clarification of the nature of the sea quark asymmetry in the nucleon.Comment: 4 pages, 1 figures, Chiral Symmetry in Hadron and Nuclear Physics November 13-16, 2007, Osak

The Separable Kernel of Nucleon-Nucleon Interaction in the Bethe-Salpeter Approach

The dispersion relations for nucleon-nucleon (NN) T-matrix in the framework of Bethe-Salpeter equation for two spin one-half particle system and with separable kernel of interaction are considered in the paper. The developed expressions are applied for construction of the separable kernel of interaction for S partial-waves in singlet and triplet channels. We calculate the low energy scattering parameters and the phase shifts and also the deuteron binding energy with the separable interaction. The approach can be easily extended to higher partial-waves for NN-scattering and other reactions (anti N N-, pi N-scattering).Comment: RevTex 4 style, 9 pages, 1 figur

NJL with eight quark interactions: Chiral phases at finite T

The thermodynamic potential and thermal dependence of low lying mass spectra of scalars and pseudoscalars are evaluated in a generalized Nambu -- Jona-Lasinio model, which incorporates eight-quark interactions. These are necessary to stabilize the scalar effective potential for the light and strange quark flavors, which would be otherwise unbounded from below. In addition it turns out that they are also crucial to i) lower the temperature of the chiral transition, in conformity with lattice calculations, ii) sharpen the temperature interval in which the crossover occurs, iii) or even allow for first order transitions to occur with realistic quark mass values, from certain critical values of the parameters. These are unprecedented results which cannot be obtained within the NJL approaches restricted to quartic and six-quark interactions.Comment: 6 pages, 3 figures, Talk presented at SCADRON 70 Workshop on Scalar Mesons and Related Topics, Lisbon, 11-16 February 200

Facies analysis and Reservoir Characterization of the Cambrian Mount Simon Formation in the Illinois Basin: Implications for CO Sequestration and Storage

This poster was presented at the American Association of Petroleum Geologists (AAPG) Annual Meeting, from June 7-10, 2009, in Denver, Colorado.Deep saline reservoirs have become a target of increased study with the development of carbon sequestration technologies. In the Illinois Basin, The Upper Cambrian Mt. Simon Formation has been proposed as a potential reservoir for CO2 sequestration. Depth and limited economic interest in the Mt. Simon have left it minimally explored with previous detailed depositional facies analysis only performed at localities outside of the Illinois Basin, where the Mt. Simon is much thinner and closer to the surface. From the analysis of recently acquired and preexisting relatively complete cores and composite cores of the Mt. Simon Formation in addition to basin wide correlation with geophysical well logs, we present a revised model for the deposition of the Mt. Simon Formation in the Illinois Basin region and the resulting implications for a CO2 reservoir. The Mt. Simon Formation is a sub-quartz to quartz arenite that unconformably overlies the crystalline basement of the interior North American craton. Thickness of the Mt. Simon ranges from a few hundred to over 2000 feet thick and structually from 2000 to over 14000 feet below sea level. The upper contact of the Mt. Simon Formation is gradational with the overlying Eau Clair Formation while the lower contact unconformably bounds the crystalline basement. Core analysis has led to the identification of several distinct facies within the Mt. Simon. The lowermost facies is dominated by medium grain to granular eolian sands with distinct interdunal red mudstone. Gradationally above the lowermost facies, tidal indicators become increasingly present with mud drapes and flaser bedding located in isolated units. This transgressive sequence from nonmarine to marine depositional environments correlates with sea level curves for the Upper Cambrian. By increasing our understanding of the Mt. Simon, we can better understand its CO2 reservoir potential

Relativistic calculation of the triton binding energy and its implications

First results for the triton binding energy obtained from the relativistic spectator or Gross equation are reported. The Dirac structure of the nucleons is taken into account. Numerical results are presented for a family of realistic OBE models with off-shell scalar couplings. It is shown that these off-shell couplings improve both the fits to the two-body data and the predictions for the binding energy.Comment: 5 pages, RevTeX 3.0, 1 figure (uses epsfig.sty

Genomic alterations and diagnosis of renal cancer

The application of molecular profiling has made substantial impact on the classification of urogenital tumors. Therefore, the 2022 World Health Organization incorporated the concept of molecularly defined renal tumor entities into its classification, including succinate dehydrogenase-deficient renal cell carcinoma (RCC), FH-deficient RCC, TFE3-rearranged RCC, TFEB-altered RCC, ALK-rearranged RCC, ELOC-mutated RCC, and renal medullary RCC, which are characterized by SMARCB1-deficiency. This review aims to provide an overview of the most important molecular alterations in renal cancer, with a specific focus on the diagnostic value of characteristic genomic aberrations, their chromosomal localization, and associations with renal tumor subtypes. It may not yet be the time to completely shift to a molecular RCC classification, but undoubtedly, the application of molecular profiling will enhance the accuracy of renal cancer diagnosis, and ultimately guide personalized treatment strategies for patients