Stability of Asn_n [n=4, 8, 20, 28, 32, 36, 60] Cage Structures

We present all-electron density functional study of the geometry, electronic structure, vibrational modes, polarizabilities as well as the infrared and Raman spectra of fullerene-like arsenic cages. The stability of As$_n$ cages for sizes 4, 8, 20, 28, 32, 36, and 60 wherein each As atom is three-fold coordinated is examined. We find that all the cages studied are vibrationally stable and while all the clusters are energetically stable with respect to isolated arsenic atoms, only As$_{20}$ is energetically stable against dissociation into As$_4$. We suggest that the Raman spectra might be a means for observing the As$_{20}$ molecule in gas phase.Comment: Uses elsart.cls (Elsevier Science), (Better pictures can be obtained from authors); Manuscript to appear in Chemical Physics Letter

Personal Papers (MS 80-0002)

Letter from Harold B. Fowler to Harris Leon Kempner congratulating him on his appointment as fund chairman for the Galveston chapter. He attaches the campaign plan from last year and asks him to review it and make changes as he sees fit

High temperature adhesives for structural applications A review

SIGLELD:8019.3153(PNR--90171) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Filtering for sex-specific loci

The R script counts each samples' matches (matches.tsv) to the catalog (Batch_7.catalog.tags.tsv) and tabulates the depth of each locus in each individual. We then filtered for presence in all of one sex and none of the other sex. We identified loci present in all males and no females

The Temptation of Executive Authority: How Increased Polarization and the Decline in Legislative Capacity Have Contributed to the Expansion of Presidential Power

This paper argues that our increasingly polarized politics has led to political stalemate and policy gridlock in Congress which, in turn, have contributed to a change in the balance of power between the executive and legislative branches of government; specifically, executive power has increased at the expense of a diminished legislature. The paper will trace the extent to which Congress has become increasingly polarized and how this increased polarization has reduced Congress\u27s capability and productivity while simultaneously increasing policy gridlock resulting in the expansion of executive power (and judicial authority) relative to legislative authorit

batch_7.catalog.tags.tsv

Stacks1.04 denovo_map.pl pipeline was used to construct a catalog of loci from ddRAD-seq reads of S. carnatus and S. chrysomelas samples. . We specified a minimum depth of coverage (m) of two, a maximum number of mismatches between stacks (alleles) within an individual (M) of two, and a maximum number of mismatches between individuals (n) of one to build the catalog. M and n allow for assembly of polymorphic loci within individuals and fixed differences among individuals at a locus, respectively. See the Stacks manual for headers

Data from: Genomic characterization of sex-identification markers in Sebastes carnatus and Sebastes chrysomelas rockfishes

Fish have evolved a variety of sex-determining (SD) systems including male heterogamy (XY), female heterogamy (ZW) and environmental SD. Little is known about SD mechanisms of Sebastes rockfishes, a highly speciose genus of importance to evolutionary and conservation biology. Here, we characterize the sex determination system in the sympatrically distributed sister species Sebastes chrysomelas and Sebastes carnatus. To identify sex-specific genotypic markers, double digest restriction site – associated DNA sequencing (ddRAD-seq) of genomic DNA from 40 sexed individuals of both species was performed. Loci were filtered for presence in all of the individuals of one sex, absence in the other sex and no heterozygosity. Of the 74 965 loci present in all males, 33 male-specific loci met the criteria in at least one species and 17 in both. Conversely, no female-specific loci were detected, together providing evidence of an XY sex determination system in both species. When aligned to a draft reference genome from Sebastes aleutianus, 26 sex-specific loci were interspersed among 1168 loci that were identical between sexes. The nascent Y chromosome averaged 5% divergence from the X chromosome and mapped to reference Sebastes genome scaffolds totalling 6.9Mbp in length. These scaffolds aligned to a single chromosome in three model fish genomes. Read coverage differences were also detected between sex-specific and autosomal loci. A PCR-RFLP assay validated the bioinformatic results and correctly identified sex of five additional individuals of known sex. A sex-determining gene in other teleosts gonadal soma-derived factor (gsdf) was present in the model fish chromosomes that spanned our sex-specific markers