WorldWideScience

Sample records for ada regulatory locus

  1. Regulatory organization of the staphylococcal sae locus.

    Science.gov (United States)

    Adhikari, Rajan P; Novick, Richard P

    2008-03-01

    This paper describes an investigation of the complex internal regulatory circuitry of the staphylococcal sae locus and the impact of modifying this circuitry on the expression of external genes in the sae regulon. The sae locus contains four genes, the saeR and S two-component signalling module (TCS), and saeP and Q, two upstream genes of hitherto unknown function. It is expressed from two promoters, P(A)sae, which transcribes only the TCS, and P(C)sae, which transcribes the entire locus. A bursa aurealis (bursa) transposon insertion in saeP in a derivative of Staphylococcus aureus NCTC 8325 has a profound effect on sae function. It modifies the activity of the TCS, changing the expression of many genes in the sae regulon, even though transcription of the TCS (from P(A)sae) is not interrupted. Moreover, these effects are not due to disruption of saeP since an in-frame deletion in saeP has essentially no phenotype. The phenotype of S. aureus strain Newman is remarkably similar to that of the saeP : : bursa and this similarity is explained by an amino acid substitution in the Newman saeS gene that is predicted to modify profoundly the signalling function of the protein. This concurrence suggests that the saeP : : bursa insertion affects the signalling function of saeS, a suggestion that is supported by the ability of an saeQR clone, but not an saeR clone, to complement the effects of the saeP : : bursa insertion.

  2. The IgH locus 3' regulatory region: pulling the strings from behind.

    Science.gov (United States)

    Pinaud, Eric; Marquet, Marie; Fiancette, Rémi; Péron, Sophie; Vincent-Fabert, Christelle; Denizot, Yves; Cogné, Michel

    2011-01-01

    Antigen receptor gene loci are among the most complex in mammals. The IgH locus, encoding the immunoglobulin heavy chain (IgH) in B-lineage cells, undergoes major transcription-dependent DNA remodeling events, namely V(D)J recombination, Ig class-switch recombination (CSR), and somatic hypermutation (SHM). Various cis-regulatory elements (encompassing promoters, enhancers, and chromatin insulators) recruit multiple nuclear factors in order to ensure IgH locus regulation by tightly orchestrated physical and/or functional interactions. Among major IgH cis-acting regions, the large 3' regulatory region (3'RR) located at the 3' boundary of the locus includes several enhancers and harbors an intriguing quasi-palindromic structure. In this review, we report progress insights made over the past decade in order to describe in more details the structure and functions of IgH 3'RRs in mouse and human. Generation of multiple cellular, transgenic and knock-out models helped out to decipher the function of the IgH 3' regulatory elements in the context of normal and pathologic B cells. Beside its interest in physiology, the challenge of elucidating the locus-wide cross talk between distant cis-regulatory elements might provide useful insights into the mechanisms that mediate oncogene deregulation after chromosomal translocations onto the IgH locus.

  3. The sae locus of Staphylococcus aureus encodes a two-component regulatory system.

    Science.gov (United States)

    Giraudo, A T; Calzolari, A; Cataldi, A A; Bogni, C; Nagel, R

    1999-08-01

    Sae is a regulatory locus that activates the production of several exoproteins in Staphylococcus aureus. A 3.4-kb fragment of a S. aureus genomic library, screened with a probe adjacent to the transposon insertion of a sae::Tn551 mutant, was cloned into a bifunctional vector. This fragment was shown to carry the sae locus by restoration of exoprotein production in sae mutants. The sae locus was mapped to the SmaI-D fragment of the staphylococcal chromosome by pulse-field electrophoresis. Sequence analysis of the cloned fragment revealed the presence of two genes, designated saeR and saeS, encoding a response regulator and a histidine protein kinase, respectively, with high homology to other bacterial two-component regulatory systems.

  4. Epigenetic Regulation of Individual Modules of the immunoglobulin heavy chain locus 3' Regulatory Region.

    Science.gov (United States)

    Birshtein, Barbara K

    2014-01-01

    The Igh locus undergoes an amazing array of DNA rearrangements and modifications during B cell development. During early stages, the variable region gene is constructed from constituent variable (V), diversity (D), and joining (J) segments (VDJ joining). B cells that successfully express an antibody can be activated, leading to somatic hypermutation (SHM) focused on the variable region, and class switch recombination (CSR), which substitutes downstream constant region genes for the originally used Cμ constant region gene. Many investigators, ourselves included, have sought to understand how these processes specifically target the Igh locus and avoid other loci and potential deleterious consequences of malignant transformation. Our laboratory has concentrated on a complex regulatory region (RR) that is located downstream of Cα, the most 3' of the Igh constant region genes. The ~40 kb 3' RR, which is predicted to serve as a downstream major regulator of the Igh locus, contains two distinct segments: an ~28 kb region comprising four enhancers, and an adjacent ~12 kb region containing multiple CTCF and Pax5 binding sites. Analysis of targeted mutations in mice by a number of investigators has concluded that the entire 3' RR enhancer region is essential for SHM and CSR (but not for VDJ joining) and for high levels of expression of multiple isotypes. The CTCF/Pax5 binding region is a candidate for influencing VDJ joining early in B cell development and serving as a potential insulator of the Igh locus. Components of the 3' RR are subject to a variety of epigenetic changes during B cell development, i.e., DNAse I hypersensitivity, histone modifications, and DNA methylation, in association with transcription factor binding. I propose that these changes provide a foundation by which regulatory elements in modules of the 3' RR function by interacting with each other and with target sequences of the Igh locus.

  5. The genetic and regulatory architecture of ERBB3-type 1 diabetes susceptibility locus

    DEFF Research Database (Denmark)

    Kaur, Simranjeet; Mirza, Aashiq H; Brorsson, Caroline Anna;

    2016-01-01

    The study aimed to explore the role of ERBB3 in type 1 diabetes (T1D). We examined whether genetic variation of ERBB3 (rs2292239) affects residual β-cell function in T1D cases. Furthermore, we examined the expression of ERBB3 in human islets, the effect of ERBB3 knockdown on apoptosis in insulin......-producing INS-1E cells and the genetic and regulatory architecture of the ERBB3 locus to provide insights to how rs2292239 may confer disease susceptibility. rs2292239 strongly correlated with residual β-cell function and metabolic control in children with T1D. ERBB3 locus associated lncRNA (NONHSAG011351...... regulators in the β-cells and may constitute novel targets to prevent β-cell destruction in T1D....

  6. Evaluation of potential regulatory function of breast cancer risk locus at 6q25.1.

    Science.gov (United States)

    Sun, Yaqiong; Ye, Chuanzhong; Guo, Xingyi; Wen, Wanqing; Long, Jirong; Gao, Yu-Tang; Shu, Xiao Ou; Zheng, Wei; Cai, Qiuyin

    2016-02-01

    In a genome-wide association study conducted among Chinese women, we identified the single nucleotide polymorphism (SNP) rs2046210 at 6q25.1 for breast cancer risk. To explore a potential regulatory role for this risk locus, we measured expression levels of nine genes at the locus in breast cancer tissue and adjacent normal tissue samples obtained from 67 patients recruited in the Shanghai Breast Cancer Study. We found that rs2046210 had a statistically significant association with the expression levels of the AKAP12 and ESR1 genes in adjacent normal breast tissues. Women who carry the AA/AG risk genotypes had higher expressions of these two genes compared to those who carry G/G genotypes (P = 0.02 and 0.04 for the AKAP12 and ESR1, respectively). However, no significant differences of SNP rs2046210 with gene expression levels were found in tumor tissues. In The Cancer Genome Atlas samples, the AA/AG risk genotypes of SNP rs2046210 were associated with a significantly higher expression level of the AKAP12 gene and a lower level of the ESR1 gene in tumor tissue. Functional analysis using ENCODE data revealed that SNP rs7763637, which is in strong linkage disequilibrium with SNP rs2046210, is likely a potential functional variant, regulating the AKAP12 gene. Taken together, these results from our study suggest that the association between the 6q25.1 locus and breast cancer risk may be mediated through SNPs that regulate expressions of the AKAP12 gene.

  7. Studies on the expression of regulatory locus sae in Staphylococcus aureus.

    Science.gov (United States)

    Giraudo, Ana T; Mansilla, Cecilia; Chan, Ana; Raspanti, Claudia; Nagel, Rosa

    2003-04-01

    Global regulatory locus sae consists of a two-component signal transduction system coded by saeR and saeS genes that upregulates the transcription of several exoproteins. Northern analysis carried out in this study reveals the synthesis at late and post-exponential phases of a cotranscript of saeR and saeS structural genes of about 2.4 kb. This transcript is diminished in the isogenic agr:: tetM mutant. Likewise, transcriptional fusion experiments show that sae expression is downregulated in the agr null mutant. Complementation analyses with plasmids carrying fragments of about 1.2 or 0.2 kbp upstream of saeR-saeS genes, which restore fully or only partially, respectively, the wild-type phenotype to the sae mutant, are in agreement with two initiation start points of transcription revealed by primer extension experiments. This work, as well as previous studies, reveals a complex hierarchical regulatory network involving several loci that control the expression of virulence determinants in S. aureus.

  8. Epigenetic regulation of individual modules of the immunoglobulin heavy chain locus 3’ regulatory region (3’ RR

    Directory of Open Access Journals (Sweden)

    Barbara K Birshtein

    2014-04-01

    Full Text Available The Igh locus undergoes an amazing array of DNA rearrangements and modifications during B cell development. During early stages, the variable region gene is constructed from constituent variable (V, diversity (D and joining (J segments (VDJ joining. B cells that successfully express an antibody can be activated, leading to somatic hypermutation (SHM focused on the variable region, and class switch recombination (CSR, which substitutes downstream constant region genes for the originally used Cμ constant region gene. Many investigators, ourselves included, have sought to understand how these processes specifically target the Igh locus and avoid other loci and potential deleterious consequences of malignant transformation. Our laboratory has concentrated on a complex regulatory region (RR that is located downstream of Cα, the most 3’ of the Igh constant region genes. The ~40 kb 3’ RR, which is predicted to serve as a downstream major regulator of the Igh locus, contains two distinct segments: an ~28 kb region of four enhancers and an adjacent ~12 kb region containing multiple CTCF and Pax5 binding sites. Analysis of targeted mutations in mice by a number of investigators has concluded that the entire 3’ RR enhancer region is essential for SHM and CSR (but not for VDJ joining and for high levels of expression of multiple isotypes. The CTCF/Pax5 binding region is a candidate for influencing VDJ joining early in B cell development and serving as a potential insulator of the Igh locus. Components of the 3’ RR are subject to a variety of epigenetic changes during B cell development, i.e., DNAse I hypersensitivity, histone modifications and DNA methylation, in association with transcription factor binding. We propose that these changes provide a foundation by which regulatory elements in modules of the 3’ RR function by interacting with each other and with target sequences of the Igh locus.

  9. Ada COCOMO and the Ada Process Model

    Science.gov (United States)

    1989-01-01

    language, the use of incremental development, and the use of the Ada process model capitalizing on the strengths of Ada to improve the efficiency of software...development. This paper presents the portions of the revised Ada COCOMO dealing with the effects of Ada and the Ada process model . The remainder of...this section of the paper discusses the objectives of Ada COCOMO. Section 2 describes the Ada Process Model and its overall effects on software

  10. Novel type of red blood cell pyruvate kinase hyperactivity predicts a remote regulatory locus involved in PKLR gene expression.

    Science.gov (United States)

    van Oirschot, Brigitte Antoinette; Francois, Jerney Johanna Jeanette Maria; van Solinge, Wouter Willem; van Wesel, Annet Cornelia Wilhelmina; Rijksen, Gert; van Amstel, Hans Kristian Ploos; van Wijk, Richard

    2014-04-01

    Red blood cell pyruvate kinase (PK-R) is a key regulatory enzyme of red cell metabolism. Hereditary deficiency of PK-R is caused by mutations in the PKLR gene, leading to chronic nonspherocytic hemolytic anemia. In contrast to PK deficiency, inherited PK hyperactivity has also been described. This very rare abnormality of RBC metabolism has been documented in only two families and appears to be without clinical consequences. Thus far, it has been attributed to either a gain of function mutation in PKLR or to persistent expression of the fetal PK isozyme PK-M2 in mature red blood cells. We here report on a novel type of inherited PK hyperactivity that is characterized by solely increased expression of a kinetically normal PK-R. In line with the latter, no mutations were detected in PKLR. Mutations in regulatory regions as well as variations in PKLR copy number were also absent. In addition, linkage analysis suggested that PK hyperactivity segregated independently from the PKLR locus. We therefore postulate that the causative mutation resides in a novel yet-unidentified locus, and upregulates PKLR gene expression. Other mutations of the same locus may be involved in those cases of PK deficiency that fail to reveal mutations in PKLR.

  11. New cis-regulatory elements in the Rht-D1b locus region of wheat

    Science.gov (United States)

    Fifteen gene-containing BACs with accumulated length of 1.82-Mb from the Rht-D1b locus region weresequenced and compared in detail with the orthologous regions of rice, sorghum, and maize. Our results show that Rht-D1b represents a conserved genomic region as implied by high gene sequence identity...

  12. Prostate cancer risk locus at 8q24 as a regulatory hub by physical interactions with multiple genomic loci across the genome.

    Science.gov (United States)

    Du, Meijun; Yuan, Tiezheng; Schilter, Kala F; Dittmar, Rachel L; Mackinnon, Alexander; Huang, Xiaoyi; Tschannen, Michael; Worthey, Elizabeth; Jacob, Howard; Xia, Shu; Gao, Jianzhong; Tillmans, Lori; Lu, Yan; Liu, Pengyuan; Thibodeau, Stephen N; Wang, Liang

    2015-01-01

    Chromosome 8q24 locus contains regulatory variants that modulate genetic risk to various cancers including prostate cancer (PC). However, the biological mechanism underlying this regulation is not well understood. Here, we developed a chromosome conformation capture (3C)-based multi-target sequencing technology and systematically examined three PC risk regions at the 8q24 locus and their potential regulatory targets across human genome in six cell lines. We observed frequent physical contacts of this risk locus with multiple genomic regions, in particular, inter-chromosomal interaction with CD96 at 3q13 and intra-chromosomal interaction with MYC at 8q24. We identified at least five interaction hot spots within the predicted functional regulatory elements at the 8q24 risk locus. We also found intra-chromosomal interaction genes PVT1, FAM84B and GSDMC and inter-chromosomal interaction gene CXorf36 in most of the six cell lines. Other gene regions appeared to be cell line-specific, such as RRP12 in LNCaP, USP14 in DU-145 and SMIN3 in lymphoblastoid cell line. We further found that the 8q24 functional domains more likely interacted with genomic regions containing genes enriched in critical pathways such as Wnt signaling and promoter motifs such as E2F1 and TCF3. This result suggests that the risk locus may function as a regulatory hub by physical interactions with multiple genes important for prostate carcinogenesis. Further understanding genetic effect and biological mechanism of these chromatin interactions will shed light on the newly discovered regulatory role of the risk locus in PC etiology and progression.

  13. Distribution, evolution, and diversity of retrotransposons at the flamenco locus reflect the regulatory properties of piRNA clusters.

    Science.gov (United States)

    Zanni, Vanessa; Eymery, Angéline; Coiffet, Michael; Zytnicki, Matthias; Luyten, Isabelle; Quesneville, Hadi; Vaury, Chantal; Jensen, Silke

    2013-12-03

    Most of our understanding of Drosophila heterochromatin structure and evolution has come from the annotation of heterochromatin from the isogenic y; cn bw sp strain. However, almost nothing is known about the heterochromatin's structural dynamics and evolution. Here, we focus on a 180-kb heterochromatic locus producing Piwi-interacting RNAs (piRNA cluster), the flamenco (flam) locus, known to be responsible for the control of at least three transposable elements (TEs). We report its detailed structure in three different Drosophila lines chosen according to their capacity to repress or not to repress the expression of two retrotransposons named ZAM and Idefix, and we show that they display high structural diversity. Numerous rearrangements due to homologous and nonhomologous recombination, deletions and segmental duplications, and loss and gain of TEs are diverse sources of active genomic variation at this locus. Notably, we evidence a correlation between the presence of ZAM and Idefix in this piRNA cluster and their silencing. They are absent from flam in the strain where they are derepressed. We show that, unexpectedly, more than half of the flam locus results from recent TE insertions and that most of the elements concerned are prone to horizontal transfer between species of the melanogaster subgroup. We build a model showing how such high and constant dynamics of a piRNA master locus open the way to continual emergence of new patterns of piRNA biogenesis leading to changes in the level of transposition control.

  14. The Interactive ADA Workstation

    Science.gov (United States)

    1990-05-01

    3. Masking Union with Ada Homograph Definition 46 Figure 5-4. Direct Environment Computation with Masking Unions 50 Figure 5-5. Full Ada Body Direct...as a homograph test in Ada) that determines if two ele- ments are "indistinguishable" according to some criteria, the following rules determine...membership in a masking union: A member of the dominant set is a member of the masking union if and only if it has no homograph in the dominant set. In other

  15. Software engineering capability for Ada (GRASP/Ada Tool)

    Science.gov (United States)

    Cross, James H., II

    1995-01-01

    The GRASP/Ada project (Graphical Representations of Algorithms, Structures, and Processes for Ada) has successfully created and prototyped a new algorithmic level graphical representation for Ada software, the Control Structure Diagram (CSD). The primary impetus for creation of the CSD was to improve the comprehension efficiency of Ada software and, as a result, improve reliability and reduce costs. The emphasis has been on the automatic generation of the CSD from Ada PDL or source code to support reverse engineering and maintenance. The CSD has the potential to replace traditional prettyprinted Ada Source code. A new Motif compliant graphical user interface has been developed for the GRASP/Ada prototype.

  16. Phylogenetic divergence of CD47 interactions with human signal regulatory protein alpha reveals locus of species specificity. Implications for the binding site.

    Science.gov (United States)

    Subramanian, Shyamsundar; Boder, Eric T; Discher, Dennis E

    2007-01-19

    Cell-cell interactions between ubiquitously expressed integrin-associated protein (CD47) and its counterreceptor signal regulatory protein (SIRPalpha) on phagocytes regulate a wide range of adhesive signaling processes, including the inhibition of phagocytosis as documented in mice. We show that CD47-SIRPalpha binding interactions are different between mice and humans, and we exploit phylogenetic divergence to identify the species-specific binding locus on the immunoglobulin domain of human CD47. All of the studies are conducted in the physiological context of membrane protein display on Chinese hamster ovary (CHO) cells. Novel quantitative flow cytometry analyses with CD47-green fluorescent protein and soluble human SIRPalpha as a probe show that neither human CD47 nor SIRPalpha requires glycosylation for interaction. Human CD47-expressing CHO cells spread rapidly on SIRPalpha-coated glass surfaces, correlating well with the spreading of primary human T cells. In contrast, CHO cells expressing mouse CD47 spread minimally and show equally weak binding to soluble human SIRPalpha. Further phylogenetic analyses and multisite substitutions of the CD47 Ig domain show that human to cow mutation of a cluster of seven residues on adjacent strands near the middle of the domain decreases the association constant for human SIRPalpha to about one-third that of human CD47. Direct tests of cell-cell adhesion between human monocytes and CD47-displaying CHO cells affirm the species specificity as well as the importance of the newly identified binding locus in cell-cell interactions.

  17. The function of the conserved regulatory element within the second intron of the mammalian Csf1r locus.

    Directory of Open Access Journals (Sweden)

    Kristin A Sauter

    Full Text Available The gene encoding the receptor for macrophage colony-stimulating factor (CSF-1R is expressed exclusively in cells of the myeloid lineages as well as trophoblasts. A conserved element in the second intron, Fms-Intronic Regulatory Element (FIRE, is essential for macrophage-specific transcription of the gene. However, the molecular details of how FIRE activity is regulated and how it impacts the Csf1r promoter have not been characterised. Here we show that agents that down-modulate Csf1r mRNA transcription regulated promoter activity altered the occupancy of key FIRE cis-acting elements including RUNX1, AP1, and Sp1 binding sites. We demonstrate that FIRE acts as an anti-sense promoter in macrophages and reversal of FIRE orientation within its native context greatly reduced enhancer activity in macrophages. Mutation of transcription initiation sites within FIRE also reduced transcription. These results demonstrate that FIRE is an orientation-specific transcribed enhancer element.

  18. The Function of the Conserved Regulatory Element within the Second Intron of the Mammalian Csf1r Locus

    Science.gov (United States)

    O’Neal, Julie; Sester, David P.; Tagoh, Hiromi; Ingram, Richard M.; Pridans, Clare; Bonifer, Constanze; Hume, David A.

    2013-01-01

    The gene encoding the receptor for macrophage colony-stimulating factor (CSF-1R) is expressed exclusively in cells of the myeloid lineages as well as trophoblasts. A conserved element in the second intron, Fms-Intronic Regulatory Element (FIRE), is essential for macrophage-specific transcription of the gene. However, the molecular details of how FIRE activity is regulated and how it impacts the Csf1r promoter have not been characterised. Here we show that agents that down-modulate Csf1r mRNA transcription regulated promoter activity altered the occupancy of key FIRE cis-acting elements including RUNX1, AP1, and Sp1 binding sites. We demonstrate that FIRE acts as an anti-sense promoter in macrophages and reversal of FIRE orientation within its native context greatly reduced enhancer activity in macrophages. Mutation of transcription initiation sites within FIRE also reduced transcription. These results demonstrate that FIRE is an orientation-specific transcribed enhancer element. PMID:23383005

  19. The AdaBoost Flow

    OpenAIRE

    Lykov, A.; Muzychka, S.; Vaninsky, K.

    2011-01-01

    We introduce a dynamical system which we call the AdaBoost flow. The flow is defined by a system of ODEs with control. We show that three algorithms of the AdaBoost family (i) the AdaBoost algorithm of Schapire and Freund (ii) the arc-gv algorithm of Breiman (iii) the confidence rated prediction of Schapire and Singer can be can be embedded in the AdaBoost flow. The nontrivial part of the AdaBoost flow equations coincides with the equations of dynamics of nonperiodic Toda system written in te...

  20. Molecular architecture of the regulatory Locus sae of Staphylococcus aureus and its impact on expression of virulence factors.

    Science.gov (United States)

    Steinhuber, Andrea; Goerke, Christiane; Bayer, Manfred G; Döring, Gerd; Wolz, Christiane

    2003-11-01

    We characterized the sae operon, a global regulator for virulence gene expression in Staphylococcus aureus. A Tn917 sae mutant was obtained by screening a Tn917 library of the agr mutant ISP479Mu for clones with altered hemolytic activity. Sequence analysis of the sae operon revealed two additional open reading frames (ORFs) (ORF3 and ORF4) upstream of the two-component regulatory genes saeR and saeS. Four overlapping sae-specific transcripts (T1 to T4) were detected by Northern blot analysis, and the transcriptional initiation points were mapped by primer extension analysis. The T1, T2, and T3 mRNAs are probably terminated at the same stem-loop sequence downstream of saeS. The T1 message (3.1 kb) initiates upstream of ORF4, T2 (2.4 kb) initiates upstream of ORF3, and T3 (2.0 kb) initiates in front of saeR. T4 (0.7 kb) represents a monocistronic mRNA encompassing ORF4 only. sae-specific transcripts were detectable in all of the 40 different clinical S. aureus isolates investigated. Transcript levels were at maximum during the post-exponential growth phase. The sae mutant showed a significantly reduced rate of invasion of human endothelial cells, consistent with diminished transcription and expression of fnbA. The expression of type 5 capsular polysaccharide is activated in the sae mutant of strain Newman, as shown by immunofluorescence and promoter-reporter fusion experiments. In summary, the sae operon constitutes a four-component regulator system which acts on virulence gene expression in S. aureus.

  1. Ada Compiler Validation Summary Report: NYU Ada/ED, Version 19.7 V-001.

    Science.gov (United States)

    1983-04-11

    ETs4~4 B37201A.ADA P SCz28 CTx7O ECal3 B37202A.ADA P SC.=44 CT263 ECaig B37202B. ADA P SCz ? CTz8 ECzl B37203A.ADA P SCz14I CTxl9 ECx6 aB3720IA-AB.ADA P...SCx27 CT=61 LT z12. 8 £7.49C52005C.ADA P SCz17 C7.37 LTx11.0 £Tx48 C52005D.ADA P SCz -53 CTz107 1.7.15.7 E7.76 C52005E.ADA P Scx39 C7.87 1.7.13.5 £7.52...SCa? C7.21 ECal B55AOlD-AB.ADk P SCx ? C7.13 M~al D55A01£-AB.ADA P SC.? CTwl7 ECal B55AOlF-AB.ADA P SCull CTx12 ECal B55A01G-AB.ADA P SCull C~zl6 ECal

  2. Identification of a regulatory variant that binds FOXA1 and FOXA2 at the CDC123/CAMK1D type 2 diabetes GWAS locus.

    Directory of Open Access Journals (Sweden)

    Marie P Fogarty

    2014-09-01

    Full Text Available Many of the type 2 diabetes loci identified through genome-wide association studies localize to non-protein-coding intronic and intergenic regions and likely contain variants that regulate gene transcription. The CDC123/CAMK1D type 2 diabetes association signal on chromosome 10 spans an intergenic region between CDC123 and CAMK1D and also overlaps the CDC123 3'UTR. To gain insight into the molecular mechanisms underlying the association signal, we used open chromatin, histone modifications and transcription factor ChIP-seq data sets from type 2 diabetes-relevant cell types to identify SNPs overlapping predicted regulatory regions. Two regions containing type 2 diabetes-associated variants were tested for enhancer activity using luciferase reporter assays. One SNP, rs11257655, displayed allelic differences in transcriptional enhancer activity in 832/13 and MIN6 insulinoma cells as well as in human HepG2 hepatocellular carcinoma cells. The rs11257655 risk allele T showed greater transcriptional activity than the non-risk allele C in all cell types tested. Using electromobility shift and supershift assays we demonstrated that the rs11257655 risk allele showed allele-specific binding to FOXA1 and FOXA2. We validated FOXA1 and FOXA2 enrichment at the rs11257655 risk allele using allele-specific ChIP in human islets. These results suggest that rs11257655 affects transcriptional activity through altered binding of a protein complex that includes FOXA1 and FOXA2, providing a potential molecular mechanism at this GWAS locus.

  3. Identification of a regulatory variant that binds FOXA1 and FOXA2 at the CDC123/CAMK1D type 2 diabetes GWAS locus.

    Science.gov (United States)

    Fogarty, Marie P; Cannon, Maren E; Vadlamudi, Swarooparani; Gaulton, Kyle J; Mohlke, Karen L

    2014-09-01

    Many of the type 2 diabetes loci identified through genome-wide association studies localize to non-protein-coding intronic and intergenic regions and likely contain variants that regulate gene transcription. The CDC123/CAMK1D type 2 diabetes association signal on chromosome 10 spans an intergenic region between CDC123 and CAMK1D and also overlaps the CDC123 3'UTR. To gain insight into the molecular mechanisms underlying the association signal, we used open chromatin, histone modifications and transcription factor ChIP-seq data sets from type 2 diabetes-relevant cell types to identify SNPs overlapping predicted regulatory regions. Two regions containing type 2 diabetes-associated variants were tested for enhancer activity using luciferase reporter assays. One SNP, rs11257655, displayed allelic differences in transcriptional enhancer activity in 832/13 and MIN6 insulinoma cells as well as in human HepG2 hepatocellular carcinoma cells. The rs11257655 risk allele T showed greater transcriptional activity than the non-risk allele C in all cell types tested. Using electromobility shift and supershift assays we demonstrated that the rs11257655 risk allele showed allele-specific binding to FOXA1 and FOXA2. We validated FOXA1 and FOXA2 enrichment at the rs11257655 risk allele using allele-specific ChIP in human islets. These results suggest that rs11257655 affects transcriptional activity through altered binding of a protein complex that includes FOXA1 and FOXA2, providing a potential molecular mechanism at this GWAS locus.

  4. ARE: Ada Rendering Engine

    Directory of Open Access Journals (Sweden)

    Stefano Penge

    2009-10-01

    Full Text Available E' ormai pratica diffusa, nello sviluppo di applicazioni web, l'utilizzo di template e di potenti template engine per automatizzare la generazione dei contenuti da presentare all'utente. Tuttavia a volte la potenza di tali engine è€ ottenuta mescolando logica e interfaccia, introducendo linguaggi diversi da quelli di descrizione della pagina, o addirittura inventando nuovi linguaggi dedicati.ARE (ADA Rendering Engine è€ pensato per gestire l'intero flusso di creazione del contenuto HTML/XHTML dinamico, la selezione del corretto template, CSS, JavaScript e la produzione dell'output separando completamente logica e interfaccia. I templates utilizzati sono puro HTML senza parti in altri linguaggi, e possono quindi essere gestiti e visualizzati autonomamente. Il codice HTML generato è€ uniforme e parametrizzato.E' composto da due moduli, CORE (Common Output Rendering Engine e ALE (ADA Layout Engine.Il primo (CORE viene utilizzato per la generazione OO degli elementi del DOM ed è pensato per aiutare lo sviluppatore nella produzione di codice valido rispetto al DTD utilizzato. CORE genera automaticamente gli elementi del DOM in base al DTD impostato nella configurazioneIl secondo (ALE viene utilizzato come template engine per selezionare automaticamente in base ad alcuni parametri (modulo, profilo utente, tipologia del nodo, del corso, preferenze di installazione il template HTML, i CSS e i file JavaScript appropriati. ALE permette di usare templates di default e microtemplates ricorsivi per semplificare il lavoro del grafico.I due moduli possono in ogni caso essere utilizzati indipendentemente l'uno dall'altro. E' possibile generare e renderizzare una pagina HTML utilizzando solo CORE oppure inviare gli oggetti CORE al template engine ALE che provvede a renderizzare la pagina HTML. Viceversa è possibile generare HTML senza utilizzare CORE ed inviarlo al template engine ALECORE è alla prima release ed è€ già utilizzato all

  5. Ada for multi-microprocessors

    Energy Technology Data Exchange (ETDEWEB)

    Tedd, M.; Crespi-Reghizzi, S.; Natali, A.

    1984-01-01

    This book presents papers on the use of the Ada programming language in array processors. Topics considered include distributed data processing, examples of distributed systems, requirements for the programming language and tools, the suitability of Ada and Apse, strategies for developing distributed systems, the construction system, reliability and extensibility, and the MML programming language.

  6. The AdaBoost Flow

    CERN Document Server

    Lykov, A; Vaninsky, K

    2011-01-01

    We introduce a dynamical system which we call the AdaBoost flow. The flow is defined by a system of ODEs with control. We show how by a suitable choice of control AdaBoost algorithm of Schapire and Freund and arc-gv algorithm of Breiman can be embedded in the AdaBoost flow. We also show how previously studied by Schapire and Singer confidence rated prediction can be obtained from our continuous time approach. We introduce a new continuous time algorithm which we call superBoost and describe its properties. The AdaBoost flow equations coincide with the equations of dynamics of the nonperiodic Toda system written in terms of spectral variables. This establishes a connection between two seemingly unrelated fields of boosting algorithms and classical integrable models. Finally we explain similarity of the AdaBoost flow with Perelman's ideas to control Ricci flow.

  7. Binding of estrogen receptors to switch sites and regulatory elements in the immunoglobulin heavy chain locus of activated B cells suggests a direct influence of estrogen on antibody expression.

    Science.gov (United States)

    Jones, Bart G; Penkert, Rhiannon R; Xu, Beisi; Fan, Yiping; Neale, Geoff; Gearhart, Patricia J; Hurwitz, Julia L

    2016-09-01

    Females and males differ in antibody isotype expression patterns and in immune responses to foreign- and self-antigens. For example, systemic lupus erythematosus is a condition that associates with the production of isotype-skewed anti-self antibodies, and exhibits a 9:1 female:male disease ratio. To explain differences between B cell responses in males and females, we sought to identify direct interactions of the estrogen receptor (ER) with the immunoglobulin heavy chain locus. This effort was encouraged by our previous identification of estrogen response elements (ERE) in heavy chain switch (S) regions. We conducted a full-genome chromatin immunoprecipitation analysis (ChIP-seq) using DNA from LPS-activated B cells and an ERα-specific antibody. Results revealed ER binding to a wide region of DNA, spanning sequences from the JH cluster to Cδ, with peaks in Eμ and Sμ sites. Additional peaks of ERα binding were coincident with hs1,2 and hs4 sites in the 3' regulatory region (3'RR) of the heavy chain locus. This first demonstration of direct binding of ER to key regulatory elements in the immunoglobulin locus supports our hypothesis that estrogen and other nuclear hormone receptors and ligands may directly influence antibody expression and class switch recombination (CSR). Our hypothesis encourages the conduct of new experiments to evaluate the consequences of ER binding. A better understanding of ER:DNA interactions in the immunoglobulin heavy chain locus, and respective mechanisms, may ultimately translate to better control of antibody expression, better protection against pathogens, and prevention of pathologies caused by auto-immune disease.

  8. Ada Linear-Algebra Program

    Science.gov (United States)

    Klumpp, A. R.; Lawson, C. L.

    1988-01-01

    Routines provided for common scalar, vector, matrix, and quaternion operations. Computer program extends Ada programming language to include linear-algebra capabilities similar to HAS/S programming language. Designed for such avionics applications as software for Space Station.

  9. Paranoia.Ada: Sample output reports

    Science.gov (United States)

    1986-01-01

    Paranoia.Ada is a program to diagnose floating point arithmetic in the context of the Ada programming language. The program evaluates the quality of a floating point arithmetic implementation with respect to the proposed IEEE Standards P754 and P854. Paranoia.Ada is derived from the original BASIC programming language version of Paranoia. The Paranoia.Ada replicates in Ada the test algorithms originally implemented in BASIC and adheres to the evaluation criteria established by W. M. Kahan. Paranoia.Ada incorporates a major structural redesign and employs applicable Ada architectural and stylistic features.

  10. Homologous elements hs3a and hs3b in the 3' regulatory region of the murine immunoglobulin heavy chain (Igh) locus are both dispensable for class-switch recombination.

    Science.gov (United States)

    Yan, Yi; Pieretti, Joyce; Ju, Zhongliang; Wei, Shiniu; Christin, John R; Bah, Fatmata; Birshtein, Barbara K; Eckhardt, Laurel A

    2011-08-01

    Immunoglobulin heavy chain (IgH) genes are formed, tested, and modified to yield diverse, specific, and high affinity antibody responses to antigen. The processes involved must be regulated, however, to avoid unintended damage to chromosomes. The 3' regulatory region of the Igh locus plays a major role in regulating class-switch recombination (CSR), the process by which antibody effector functions are modified during an immune response. Loss of all known enhancer-like elements in this region dramatically impairs CSR, but individual element deletions have no effect on this process. In the present study, we explored the hypothesis that an underlying functional redundancy in the homologous elements hs3a and hs3b was masking the importance of either element to CSR. Several transgenic mouse lines were generated, each carrying a bacterial artificial chromosome transgene that mimicked Igh locus structure but in which hs3a was missing and hs3b was flanked by loxP sites. Matings to Cyclization Recombination Enzyme-expressing mice established "pairs" of lines that differed only in the presence or absence of hs3b. Remarkably, CSR remained robust in the absence of both hs3a and hs3b, suggesting that the remaining two elements of the 3' regulatory region, hs1.2 and hs4, although individually dispensable for CSR, are, together, sufficient to support CSR.

  11. Ada Implementation Guide. Software Engineering With Ada. Volume 1

    Science.gov (United States)

    1994-04-01

    teaching, the student is less likely to readily adopt new, more powerful ways of accomplishing old tasks 122 Depatn of the NaY I ! Trablng and Educaion and...Maturity Model3 (CMU/SEI-92-TR-25, ESC-TR-/92-0M5). Pittsburgh, PA : Carnegie-Mellon University, 1992. SBoehm. B.W. Software Engineering Economics...Pittsburgh, PA : Carnegie-Mellon University, 19-21 March 1991. £ Contrast: Ada 9X and C++, Schonberg, E. New York University, 1992 (Distributed by Ada IC on

  12. Ada Compiler Validation Summary Report: ROLM Ada Compiler, Version 4.42 V-002.

    Science.gov (United States)

    1983-05-12

    EC =3 CB3003A-B.ADA P SC =64 CB3004A.ADA P SCz 52 BB3005A.ADA P SC= 4 EC z2 CB4001A..ADA P SC 60 C84002A.ADA P SCx 50 C34003A-AB.AOA P SC =35...a class B test is indicated by EC. The results for each test file were as follows: B22001A.TST PS SC : 26 EC s 8 B22001B.TST PS SCx 8 EC- 3...A29002F-B.ADA P -Sc z1Il A29002G-B.ADA P SC z88 A29002I-.B.ADA P SC = 63 A29002I-8B.ADA P SC= 95 A29002J-B.ADA P SC 81 D29002K-B.ADA P SCz 766 *B32103A

  13. The predicted protein product of a pathogenicity locus from Pseudomonas syringae pv. phaseolicola is homologous to a highly conserved domain of several procaryotic regulatory proteins.

    OpenAIRE

    GRIMM, C; Panopoulos, N J

    1989-01-01

    A ca. 20-kilobase (kb) region (hrp) that controls the interaction of Pseudomonas syringae pv. phaseolicola with its host (pathogenicity) and nonhost plants (hypersensitive reaction) was previously cloned and partially characterized. In this study we defined the limits and determined the nucleotide sequence of a hrp locus (hrpS), located near the right end of the hrp cluster. The largest open reading frame (ORF302) in hrpS has a coding capacity for a 302-amino-acid polypeptide. The predicted a...

  14. Report on Teaching Ada. Revised

    Science.gov (United States)

    1980-12-01

    their list of -• questionable iters. Then, with no assistance they were given the followina quiz. Teaching Ada Faae 41 Answer the tollowinq cuestions ...It any rertain to any ot the Items you nave marked as not understandatle, mark tPat UI cuestion "deleted," You have 20 minutes. The oulz is open book

  15. Autoimmune dysregulation and purine metabolism in adenosine deaminase (ADA-deficiency

    Directory of Open Access Journals (Sweden)

    Aisha Vanessa Sauer

    2012-08-01

    Full Text Available Genetic defects in the adenosine deaminase (ADA gene are among the most common causes for severe combined immunodeficiency (SCID. ADA-SCID patients suffer from lymphopenia, severely impaired cellular and humoral immunity, failure to thrive and recurrent infections. Currently available therapeutic options for this otherwise fatal disorder include bone marrow transplantation (BMT, enzyme replacement therapy with bovine ADA (PEG-ADA or hematopoietic stem cell gene therapy (HSC-GT. Although varying degrees of immune reconstitution can be achieved by these treatments, breakdown of tolerance is a major concern in ADA-SCID. Immune dysregulation such as autoimmune hypothyroidism, diabetes mellitus, hemolytic anemia, and immune thrombocytopenia are frequently observed in milder forms of the disease. However, several reports document similar complications also in patients on long-term PEG-ADA and after BMT or GT treatment.A skewed repertoire and decreased immune functions have been implicated in autoimmunity observed in certain B-cell and/or T-cell immunodeficiencies, but it remains unclear to what extent specific mechanisms of tolerance are affected in ADA deficiency. Herein we provide an overview about ADA-SCID and the autoimmune manifestations reported in these patients before and after treatment. We also assess the value of the ADA-deficient mouse model as a useful tool to study both immune and metabolic disease mechanisms. With focus on regulatory T and B cells we discuss the lymphocyte subpopulations particularly prone to contribute to the loss of self-tolerance and onset of autoimmunity in ADA deficiency. Moreover we address which aspects of immune dysregulation are specifically related to alterations in purine metabolism caused by the lack of ADA and the subsequent accumulation of metabolites with immunomodulatory properties.

  16. Ada training evaluation and recommendations from the Gamma Ray Observatory Ada Development Team

    Science.gov (United States)

    1985-01-01

    The Ada training experiences of the Gamma Ray Observatory Ada development team are related, and recommendations are made concerning future Ada training for software developers. Training methods are evaluated, deficiencies in the training program are noted, and a recommended approach, including course outline, time allocation, and reference materials, is offered.

  17. Paranoia.Ada: A diagnostic program to evaluate Ada floating-point arithmetic

    Science.gov (United States)

    Hjermstad, Chris

    1986-01-01

    Many essential software functions in the mission critical computer resource application domain depend on floating point arithmetic. Numerically intensive functions associated with the Space Station project, such as emphemeris generation or the implementation of Kalman filters, are likely to employ the floating point facilities of Ada. Paranoia.Ada appears to be a valuabe program to insure that Ada environments and their underlying hardware exhibit the precision and correctness required to satisfy mission computational requirements. As a diagnostic tool, Paranoia.Ada reveals many essential characteristics of an Ada floating point implementation. Equipped with such knowledge, programmers need not tremble before the complex task of floating point computation.

  18. A small evaluation suite for Ada compilers

    Science.gov (United States)

    Wilke, Randy; Roy, Daniel M.

    1986-01-01

    After completing a small Ada pilot project (OCC simulator) for the Multi Satellite Operations Control Center (MSOCC) at Goddard last year, the use of Ada to develop OCCs was recommended. To help MSOCC transition toward Ada, a suite of about 100 evaluation programs was developed which can be used to assess Ada compilers. These programs compare the overall quality of the compilation system, compare the relative efficiencies of the compilers and the environments in which they work, and compare the size and execution speed of generated machine code. Another goal of the benchmark software was to provide MSOCC system developers with rough timing estimates for the purpose of predicting performance of future systems written in Ada.

  19. Experiences with Ada in an embedded system

    Science.gov (United States)

    Labaugh, Robert J.

    1988-01-01

    Recent experiences with using Ada in a real time environment are described. The application was the control system for an experimental robotic arm. The objectives of the effort were to experiment with developing embedded applications in Ada, evaluating the suitability of the language for the application, and determining the performance of the system. Additional objectives were to develop a control system based on the NASA/NBS Standard Reference Model for Telerobot Control System Architecture (NASREM) in Ada, and to experiment with the control laws and how to incorporate them into the NASREM architecture.

  20. Ada Compiler Validation Summary Report: Western Digital STC-Ada Compiler, Version C1. Om V-004.

    Science.gov (United States)

    1983-07-28

    C27001A.ADA P SC 2 10 C27002A-B.ADA P SC x 15 829001A.ADA PS SC a 126 EC 262 A29002A-B.ADA P SCz 74 A29002B-.B.ADA P SC a 69 A29002C-B. ADA P SC z 68...s 15 D32202Bm-B.ADA P SC a 21 SC 2 9 B32202C-D.ADA P SC.x 28 EC x:12 C32203A-B.ADA P SC a 15 *A32203i68.ADA P SC a 22 A32203C-B.ADA P SCx 18 A32203D...B.ADA P SC a 16 B33001A.ADA P SC a 27 SC a 10 833002A.ADA PS SC a 8 EC x 5 533003A.ADA P SCx 14 EC a 4 B33003B-AS.ADA P SC a 22 EC a 9 533003C-AB.ADA

  1. Ada (Trade Name) Bibliography. Volume 1.

    Science.gov (United States)

    1983-05-01

    FISHER, DR. DAVID A.; WETHERALL, PHILIP R. DOCUMENT NUMBER: 3435 DOCUMENT DATE: 01/78 TYPE: TECHNICAL REPORT This report discusses the considerations...SPONOR ADA JT. PROG. OFF., ARLINGTON, VA 22209 - DATABASE PORTABILITY ISSUES IN THE KAPSE KOTLER , REED S. DOCUMENT NUMBER: 3590 TYPE: PAPER KERNEL ADA...N,., BABEL, PHILIPS ., U.S.A.F. ASD,WRIGHT-PATTERSON AFB, OH 5653 -03 JOINT-SERVICE ACQUISITION MANAGEMENT INITIATIVES € BABICH, WAYNEA., SOFTECHINC

  2. ADA and C++ Business Case Analysis

    Science.gov (United States)

    1991-07-01

    compilation times, execution times, and various measures of space requirements. The as- sessments in the comparative analysis were refined using a Delphi ...weighted scoring and tables of results, to the group as a whole. Then a Delphi technique similar to the FAA methodology was used to refine the evaluations...promoter of reusability, or injector of added quality, then our3collective judgements may be biased too much towards Ada. Of course the next Ada 9X team

  3. A W-Grammar Description for ADA.

    Science.gov (United States)

    1986-12-01

    Language Reference Manual. In MT opinion, the W- gramars fall short of this goal since they are less readable than BNF for determining Ada’s syntax, and...37 Summary . . . . . . . . . . . . . . .... . 39 V. Conclusion .. . . . . . . . . . .. . . .* . . . . 40 Ada Constructs Not Covered in W- gramar B...library unit. The problem with the Language Reference Manual description is not that BNF is too antiquated for language definition, but that English

  4. An Embedded Rule-Based Diagnostic Expert System in Ada

    Science.gov (United States)

    Jones, Robert E.; Liberman, Eugene M.

    1992-01-01

    Ada is becoming an increasingly popular programming language for large Government-funded software projects. Ada with it portability, transportability, and maintainability lends itself well to today's complex programming environment. In addition, expert systems have also assumed a growing role in providing human-like reasoning capability expertise for computer systems. The integration is discussed of expert system technology with Ada programming language, especially a rule-based expert system using an ART-Ada (Automated Reasoning Tool for Ada) system shell. NASA Lewis was chosen as a beta test site for ART-Ada. The test was conducted by implementing the existing Autonomous Power EXpert System (APEX), a Lisp-based power expert system, in ART-Ada. Three components, the rule-based expert systems, a graphics user interface, and communications software make up SMART-Ada (Systems fault Management with ART-Ada). The rules were written in the ART-Ada development environment and converted to Ada source code. The graphics interface was developed with the Transportable Application Environment (TAE) Plus, which generates Ada source code to control graphics images. SMART-Ada communicates with a remote host to obtain either simulated or real data. The Ada source code generated with ART-Ada, TAE Plus, and communications code was incorporated into an Ada expert system that reads the data from a power distribution test bed, applies the rule to determine a fault, if one exists, and graphically displays it on the screen. The main objective, to conduct a beta test on the ART-Ada rule-based expert system shell, was achieved. The system is operational. New Ada tools will assist in future successful projects. ART-Ada is one such tool and is a viable alternative to the straight Ada code when an application requires a rule-based or knowledge-based approach.

  5. Transformation of ADA programs into silicon

    Science.gov (United States)

    Organick, E. I.; Lindstrom, G.; Smith, D. K.; Subrahmany; Carter, T.

    1982-03-01

    This report outlines the beginning steps taken in an integrated research effort toward the development of a methodology, and supporting systems, for transforming Ada programs, or program units, (directly) into corresponding VLSI systems. The time seems right to expect good results. The need is evident; special purpose systems should be realistic alternatives where simplicity, speed, reliability, and security ae dominant factors. Success in this research can lead to attractive options for embedded system applications. Ada programs can be regarded as ensembles of machines, one per program unit (module), which in turn may be mapped directly into corresponding VLSI structures on one or more chips with interconnecting (packet switched or other) communication nets. The research reported here is part of a five-year plan, the first year of which focuses on 'proving' the concepts through a realistic demonstration of methodology for a specific example Ada program (a silicon representation of part or all of the DoD Standard Internet Protocol, IP, initially expressed in Ada). Implicit in these objectives is the development of a set of hardware structuring paradigms (rewrite rules) whose application can ensure that transformation steps between levels of abstraction in the design process are well structured in order to preserve the integrity and, where possible, the clarity of the original Ada specification. Some paradigms, but of course not all, lead to highly efficient implementations.

  6. Electronic Commerce Removing Regulatory Impediments

    Science.gov (United States)

    1992-05-01

    AD-A252 691 ELECTRONIC COMMERCE Removing Regulatory Impediments ~DuiG A% ELECTE I JUL1 8 1992 0 C D Daniel J. Drake John A. Ciucci ... - ""N ST AT KE...Management Institute 6400 Goldsboro Road Bethesda, Maryland 20817-5886 92 LMI Executive Summary ELECTRONIC COMMERCE : REMOVING REGULATORY IMPEDIMENTS... Electronic Commerce techniques, such as electronic mail and electronic data interchange (EDI), enable Government agencies to conduct business without the

  7. A database management capability for Ada

    Science.gov (United States)

    Chan, Arvola; Danberg, SY; Fox, Stephen; Landers, Terry; Nori, Anil; Smith, John M.

    1986-01-01

    The data requirements of mission critical defense systems have been increasing dramatically. Command and control, intelligence, logistics, and even weapons systems are being required to integrate, process, and share ever increasing volumes of information. To meet this need, systems are now being specified that incorporate data base management subsystems for handling storage and retrieval of information. It is expected that a large number of the next generation of mission critical systems will contain embedded data base management systems. Since the use of Ada has been mandated for most of these systems, it is important to address the issues of providing data base management capabilities that can be closely coupled with Ada. A comprehensive distributed data base management project has been investigated. The key deliverables of this project are three closely related prototype systems implemented in Ada. These three systems are discussed.

  8. Object-Oriented Database Access from Ada

    Science.gov (United States)

    1993-03-01

    programs’ sizes in Ada are larger than C’s. Strong type checking and the interface programs added overhead can probably explain this. 4.3 Problema ...Verdix Corporation. Verdix Ada Development System, 1991. BIB-2 Vita Lt Col Li Chou (ROCAF, Taiwan ) was born on 28 October 1957 in I-Lan, Taiwan ...Republic of China . He graduated from high school in I-Lan in June, 1975. He then entered the National Defense Medical Center from which he graduated in 1980

  9. Program Office Guide to Ada. Edition 1

    Science.gov (United States)

    1986-09-17

    Storage Allocation 3-11 3.2.2.4 Rendezvous 3-11 3.3 ALTERNATIVES IN CUSTOM RUN-TIME SUPPORT 3-12 ENVIRONMENTS ( RSE ) 3.3.1 Unique RSE for Each...Tailoring Run-time Support Environments ( RSE ) The minimal Ada compilation system must include a Run- time Support Environment ( RSE ). The code generated by...a typical Ada compiler calls on the RSE to obtain the run-time system services necessary for execution. The RSE consists of primitive and system

  10. Ada Formal Methods in the STARS Environment

    Science.gov (United States)

    1992-06-03

    Ariel Semantics for nanoAVA ....... ........................ 56 5.3.1 Caliban Types ....................................... 56 5.3.2 Caliban ...Expressions ........ ........................... 57 5.3.3 Caliban Definitions ........ ............................ 58 5.3.4 Clio’s Metalanguage...59 5.3.5 A Summary of Ada-Ariel Semantics ........................ 60 5.3.6 A Caliban Encoding of an Ariel Semantics for

  11. LAS DOS TRÍADAS DEBEJARANO

    Directory of Open Access Journals (Sweden)

    Jorge Iván González

    Full Text Available El artículo diseute "dos tríadas" que propone Bejarano para calificar a la teoría económica actual. La primera tríada tiene que ver con el realismo, la pertinencia y la relevancia de la teoría. Y la segunda tríada con sus dimensiones política, institucional y moral. El artículo centra la atención en esta segunda tríada, argumentando que la teoría no es apolítica, ainstitucional y amoral como afirma Bejarano. El examen crítico de la posición de Bejarano se sustenta en algunas de las tesis de: Walras, Marshall, Hicks, vickrey, Samuelson y Arrow.This article discusses the "two triads" that Bejarano has proposed in order to describe present economic theory. The first triad refers to the realism, pertinence and relevance of the theory. The second triad to its political, institutional and moral dimension. The article centers its attention on this second triad, arguing that the theory is not apolitical, uninstitutional and amoral as Bejarano states. The critical examination of Bejarano's proposition is supported on thesis of Walras, Marshall, Hicks, Vickrey, Samuelson and Arrow.

  12. Alma Flor Ada: Writer, Translator, Storyteller.

    Science.gov (United States)

    Brodie, Carolyn S.

    2003-01-01

    Discusses the work of children's author Alma Flor Ada, a Cuban native who has won awards honoring Latino writers and illustrators. Includes part of an interview that explores her background, describes activity ideas, and presents a bibliography of works written by her (several title published in both English and Spanish) as well as sources of…

  13. AdaNET prototype library administration manual

    Science.gov (United States)

    Hanley, Lionel

    1989-01-01

    The functions of the AdaNET Prototype Library of Reusable Software Parts is described. Adopted from the Navy Research Laboratory's Reusability Guidebook (V.5.0), this is a working document, customized for use the the AdaNET Project. Within this document, the term part is used to denote the smallest unit controlled by a library and retrievable from it. A part may have several constituents, which may not be individually tracked. Presented are the types of parts which may be stored in the library and the relationships among those parts; a concept of trust indicators which provide measures of confidence that a user of a previously developed part may reasonably apply to a part for a new application; search and retrieval, configuration management, and communications among those who interact with the AdaNET Prototype Library; and the AdaNET Prototype, described from the perspective of its three major users: the part reuser and retriever, the part submitter, and the librarian and/or administrator.

  14. 49 CFR 37.125 - ADA paratransit eligibility: Process.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false ADA paratransit eligibility: Process. 37.125... INDIVIDUALS WITH DISABILITIES (ADA) Paratransit as a Complement to Fixed Route Service § 37.125 ADA paratransit eligibility: Process. Each public entity required to provide complementary paratransit service...

  15. 49 CFR 37.123 - ADA paratransit eligibility: Standards.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false ADA paratransit eligibility: Standards. 37.123... INDIVIDUALS WITH DISABILITIES (ADA) Paratransit as a Complement to Fixed Route Service § 37.123 ADA paratransit eligibility: Standards. (a) Public entities required by § 37.121 of this subpart to...

  16. Ada (Trade Name) Bibliography. Volume 3.

    Science.gov (United States)

    1986-02-01

    MARIA : FREEMAN. PETER: WASSERMAN, ANTHONY I. DOCUMENT NUMBER: 5484 DOCUMENT DATE: 11/82 TYPE: TECHNICAL REPORT In Spring, 1982, a questionnaire was...VALIDATION AVAILABLE FROM: THE AUTHOR SPONSORS: U.S.A.F. ASD,WRIGHT-PATTERSON AFB, OH AN ADA LANGUAGE PRIMER, PART I SAIB, SABINA H. DOCUMENT NUMBER: 6214...PRIMER, PART II SAIB, SABINA H. DOCUMENT NUMBER: 6215 TYPE: JOURNAL ARTICLE BYTE, VOL 9, ISSUE 6, 14 P. This article is the second of a two-part

  17. Ada for Embedded Systems: Issues and Questions.

    Science.gov (United States)

    1987-12-01

    appropriate order based on the task dependency hierarchy, which the ART maintains and adds to when tasks are created [ Reino 86]. The master-slave, parent...termination are needed [ Reino 86]. Tasks provide a considerable overhead in the runtime system because the status must be maintained for context...Practitioners Approach. McGraw-Hill International, 1982. [ Reino 86] Kurki-Suonio, R. An Operational Model for Ada Tasking. Technical Report 1/1986, Tampere

  18. Ada (Trade Name) Bibliography. Volume 2.

    Science.gov (United States)

    1984-03-01

    describes the characteristics that " such methologies should possess, Emphasis is given to the process by which software is developed for Ada applications...1. PP. 30-35. 01/82 This article is a proposal for an experiment to relate software metrics to software project observables , in particular to the...that arise in developing embedded software systems. The case studies are of two kinds: pedagogical and observational . The pedagogical case studies

  19. Object-oriented programming with mixins in Ada

    Science.gov (United States)

    Seidewitz, ED

    1992-01-01

    Recently, I wrote a paper discussing the lack of 'true' object-oriented programming language features in Ada 83, why one might desire them in Ada, and how they might be added in Ada 9X. The approach I took in this paper was to build the new object-oriented features of Ada 9X as much as possible on the basic constructs and philosophy of Ada 83. The object-oriented features proposed for Ada 9X, while different in detail, are based on the same kind of approach. Further consideration of this approach led me on a long reflection on the nature of object-oriented programming and its application to Ada. The results of this reflection, presented in this paper, show how a fairly natural object-oriented style can indeed be developed even in Ada 83. The exercise of developing this style is useful for at least three reasons: (1) it provides a useful style for programming object-oriented applications in Ada 83 until new features become available with Ada 9X; (2) it demystifies many of the mechanisms that seem to be 'magic' in most object-oriented programming languages by making them explicit; and (3) it points out areas that are and are not in need of change in Ada 83 to make object-oriented programming more natural in Ada 9X. In the next four sections I will address in turn the issues of object-oriented classes, mixins, self-reference and supertyping. The presentation is through a sequence of examples. This results in some overlap with that paper, but all the examples in the present paper are written entirely in Ada 83. I will return to considerations for Ada 9X in the last section of the paper.

  20. Association of G22A and A4223C ADA1 gene polymorphisms and ADA activity with PCOS.

    Science.gov (United States)

    Salehabadi, Mahshid; Farimani, Marzieh; Tavilani, Heidar; Ghorbani, Marzieh; Poormonsefi, Faranak; Poorolajal, Jalal; Shafiei, Gholamreza; Ghasemkhani, Neda; Khodadadi, Iraj

    2016-06-01

    Adenosine deaminase-1 (ADA1) regulates the concentration of adenosine as the main modulator of oocyte maturation. There is compelling evidence for the association of ADA1 gene polymorphisms with many diseases but the importance of ADA1 polymorphisms in polycystic ovary syndrome (PCOS) has not been studied before. This study investigates serum total ADA activity (tADA), ADA1 and ADA2 isoenzyme activities, and genotype and allele frequencies of G22A and A4223C polymorphisms in healthy and PCOS women. In this case-control study 200 PCOS patients and 200 healthy women were enrolled. Genomic DNA was extracted from whole blood and the PCR-RFLP technique was used to determine the G22A and A4223C variants. The genotype frequencies were calculated and the association between polymorphic genotypes and enzyme activities were determined. tADA activity was significantly lower in the PCOS group compared with the control group (27.76±6.0 vs. 39.63±7.48, respectively). PCOS patients also showed reduced activity of ADA1 and ADA2. PCOS was not associated with G22A polymorphism whereas AA, AC, and CC genotypes of A4223C polymorphism were found distributed differently between the control and the PCOS women where the C allele showed a strong protective role for PCOS (odds ratio=1.876, p=0.033). The present study for the first time showed that lower ADA activity may be involved in pathogenesis of PCOS by maintaining a higher concentration of adenosine affecting follicular growth. As a novel finding, we also showed great differences in genotype distribution and allele frequencies of A4223C polymorphism between groups indicating a protective role for C allele against PCOS. AbbreviationsADA: adenosine deaminase PCOS: polycystic ovary syndrome PCR-RFLP: polymerase chain reaction-restriction fragment length polymorphism tADA: total adenosine deaminase.

  1. ada: An R Package for Stochastic Boosting

    Directory of Open Access Journals (Sweden)

    Mark Culp

    2006-09-01

    Full Text Available Boosting is an iterative algorithm that combines simple classification rules with ‘mediocre’ performance in terms of misclassification error rate to produce a highly accurate classification rule. Stochastic gradient boosting provides an enhancement which incorporates a random mechanism at each boosting step showing an improvement in performance and speed in generating the ensemble. ada is an R package that implements three popular variants of boosting, together with a version of stochastic gradient boosting. In addition, useful plots for data analytic purposes are provided along with an extension to the multi-class case. The algorithms are illustrated with synthetic and real data sets.

  2. ada: An R Package for Stochastic Boosting

    Directory of Open Access Journals (Sweden)

    Mark Culp

    2006-09-01

    Full Text Available Boosting is an iterative algorithm that combines simple classification rules with "mediocre" performance in terms of misclassification error rate to produce a highly accurate classification rule. Stochastic gradient boosting provides an enhancement which incorporates a random mechanism at each boosting step showing an improvement in performance and speed in generating the ensemble. ada is an R package that implements three popular variants of boosting, together with a version of stochastic gradient boosting. In addition, useful plots for data analytic purposes are provided along with an extension to the multi-class case. The algorithms are illustrated with synthetic and real data sets.

  3. Software engineering and the role of Ada: Executive seminar

    Science.gov (United States)

    Freedman, Glenn B.

    1987-01-01

    The objective was to introduce the basic terminology and concepts of software engineering and Ada. The life cycle model is reviewed. The application of the goals and principles of software engineering is applied. An introductory understanding of the features of the Ada language is gained. Topics addressed include: the software crises; the mandate of the Space Station Program; software life cycle model; software engineering; and Ada under the software engineering umbrella.

  4. Implementation of a production Ada project: The GRODY study

    Science.gov (United States)

    Godfrey, Sara; Brophy, Carolyn Elizabeth

    1989-01-01

    The use of the Ada language and design methodologies that encourage full use of its capabilities have a strong impact on all phases of the software development project life cycle. At the National Aeronautics and Space Administration/Goddard Space Flight Center (NASA/GSFC), the Software Engineering Laboratory (SEL) conducted an experiment in parallel development of two flight dynamics systems in FORTRAN and Ada. The differences observed during the implementation, unit testing, and integration phases of the two projects are described and the lessons learned during the implementation phase of the Ada development are outlined. Included are recommendations for future Ada development projects.

  5. Transferring data objects: A focused Ada investigation

    Science.gov (United States)

    Legrand, Sue

    1988-01-01

    The use of the Ada language does not guarantee that data objects will be in the same form or have the same value after they have been stored or transferred to another system. There are too many possible variables in such things as the formats used and other protocol conditions. Differences may occur at many different levels of support. These include program level, object level, application level, and system level. A standard language is only one aspect of making a complex system completely homogeneous. Many components must be standardized and the various standards must be integrated. The principal issues in providing for interaction between systems are of exchanging files and data objects between systems which may not be compatible in terms of their host computer, operating system or other factors. A typical resolution of the problem of invalidating data involves at least a common external form, for data objects and for representing the relationships and attributes of data collections. Some of the issues dealing with the transfer of data are listed and consideration is given on how these issues may be handled in the Ada language.

  6. The ADAS inner solar system project

    Science.gov (United States)

    Hoffmann, Martin; Pignata, Giuliano; Barbieri, Cesare; Bertini, Ivano; Calvani, Massimo; Claudi, Riccardo; Hahn, Gerhard; Magrin, Sara; Mottola, Stefano; Neukum, Gerhard

    2002-11-01

    ADAS, the Asiago-DLR Asteroid Survey, is a joint program between the Department of Astronomy and Astronomical Observatory of Padova and the DLR Berlin, dedicated to the search of asteroids. The observations are made with a 67/92 cm Schmidt Telescope on Cima Ekar, near Asiago, in northern Italy. A 2K×2K CCD camera provided by the DLR is in use, mostly in Time Delay Integration mode. The camera has a field of 0.67 square degrees and can reach a limiting magnitude V ~ 21.0 in 3 minutes of exposure time. Specific search programs, in particular for objects permanently inside the orbit of the Earth (IEOs), have been started. A simulation of the performance of the IEO survey based on the model population from Bottke et al. shows that the discovery of a one-digit number of IEOs may be possible with the layout and equipment of the ADAS survey with a couple of years of operation.

  7. 59 FR- Realty Action; Ada and Owyhee, ID

    Science.gov (United States)

    1994-05-03

    ...-332A-02; IDI-29516] Realty Action; Ada and Owyhee, ID AGENCY: Bureau of Land Management, Interior. ACTION: Notice of Realty Action--IDI-29516; Exchange of public and private lands in Ada and Owyhee.... Containing 640 acres, more or less, in Owyhee County. The purpose of this exchange is to dispose of...

  8. Ada (Trademark) Tasking and Exceptions: A Formal Definition.

    Science.gov (United States)

    1985-01-01

    handlerjist exception- bandler -jead sequence...of-statements E14) exceptionjiandlerjlist -. exceptionji andler..head sequence..of..statements E15...Weatherly, Richard M., A Messale-Based Kernel to Support Ada Tasking, Proceedings of the IEEE Computer 06; Society 1984 Conference on Ada

  9. Alma Flor Ada and the Quest for Change

    Science.gov (United States)

    Manna, Anthony, L.; Hill, Janet; Kellogg, Kathy

    2004-01-01

    Alma Flor Ada, a folklorist, novelist, scholar, teacher, and children's book author has passionate dedication to education for social justice, equality, and peace. As a faculty member at the University of San Francisco, Ada has developed programs that help students and others transform their lives and has written several bilingual legends and…

  10. Service dogs, psychiatric hospitalization, and the ADA.

    Science.gov (United States)

    Muramatsu, Russ S; Thomas, Kelly Jones; Leong, Stephanie L; Ragukonis, Frank

    2015-01-01

    A service dog is defined as "any dog that is individually trained to do work or perform tasks for the benefit of an individual with a disability, including a physical, sensory, psychiatric, intellectual, or other mental disability." Some psychiatric patients may depend on a service dog for day-to-day functioning. The Americans with Disabilities Act (ADA) established certain rights and responsibilities for individuals with disabilities and health care providers. Psychiatric hospitalization of a patient with a service dog may pose a problem and involves balancing the requirement to provide safe and appropriate psychiatric care with the rights of individuals with disabilities. This Open Forum examines issues that arise in such circumstances, reviews the literature, and provides a foundation for the development of policies and procedures.

  11. Eliana Machado, Locus Brasilis

    OpenAIRE

    Ramos, Domingo

    2013-01-01

    Locus Brasilis es un complejo libro de la poeta brasileña y trilingüe Eliana Machado, que actualmente radica en Europa y por primera vez publica en el Perú. El volumen, el segundo de la autora luego de Blanco en el blanco, que apareció en Sao Paulo, consta de tres partes bien definidas, que corresponden a los tres reinos de la naturaleza. En poesía esto se traslada al hombre con sus respectivos correlatos del animal como ser destructivo, pero también conciliador y hasta protector de un mundo ...

  12. Visualization design and verification of Ada tasking using timing diagrams

    Science.gov (United States)

    Vidale, R. F.; Szulewski, P. A.; Weiss, J. B.

    1986-01-01

    The use of timing diagrams is recommended in the design and testing of multi-task Ada programs. By displaying the task states vs. time, timing diagrams can portray the simultaneous threads of data flow and control which characterize tasking programs. This description of the system's dynamic behavior from conception to testing is a necessary adjunct to other graphical techniques, such as structure charts, which essentially give a static view of the system. A series of steps is recommended which incorporates timing diagrams into the design process. Finally, a description is provided of a prototype Ada Execution Analyzer (AEA) which automates the production of timing diagrams from VAX/Ada debugger output.

  13. QUEST/Ada (Query Utility Environment for Software Testing of Ada): The development of a prgram analysis environment for Ada, task 1, phase 2

    Science.gov (United States)

    Brown, David B.

    1990-01-01

    The results of research and development efforts are described for Task one, Phase two of a general project entitled The Development of a Program Analysis Environment for Ada. The scope of this task includes the design and development of a prototype system for testing Ada software modules at the unit level. The system is called Query Utility Environment for Software Testing of Ada (QUEST/Ada). The prototype for condition coverage provides a platform that implements expert system interaction with program testing. The expert system can modify data in the instrument source code in order to achieve coverage goals. Given this initial prototype, it is possible to evaluate the rule base in order to develop improved rules for test case generation. The goals of Phase two are the following: (1) to continue to develop and improve the current user interface to support the other goals of this research effort (i.e., those related to improved testing efficiency and increased code reliable); (2) to develop and empirically evaluate a succession of alternative rule bases for the test case generator such that the expert system achieves coverage in a more efficient manner; and (3) to extend the concepts of the current test environment to address the issues of Ada concurrency.

  14. Latvian PR people are world class / Ada Parr

    Index Scriptorium Estoniae

    Parr, Ada

    2004-01-01

    Suhtekorraldusfirma Porter Novelli rahvusvahelise partnerluse juht suhtekorralduse osatähtsuse kasvust ettevõtete äritegevuses, suhtekorraldusturu olukorrast ja teenuste kvaliteedi tasemest Baltimaades. Vt. samas: Ada Parr recommends

  15. A report on NASA software engineering and Ada training requirements

    Science.gov (United States)

    Legrand, Sue; Freedman, Glenn B.; Svabek, L.

    1987-01-01

    NASA's software engineering and Ada skill base are assessed and information that may result in new models for software engineering, Ada training plans, and curricula are provided. A quantitative assessment which reflects the requirements for software engineering and Ada training across NASA is provided. A recommended implementation plan including a suggested curriculum with associated duration per course and suggested means of delivery is also provided. The distinction between education and training is made. Although it was directed to focus on NASA's need for the latter, the key relationships to software engineering education are also identified. A rationale and strategy for implementing a life cycle education and training program are detailed in support of improved software engineering practices and the transition to Ada.

  16. Evaluation of Ada as a Communications Programming Language.

    Science.gov (United States)

    1981-03-31

    drastically, altered or circumvented to provide a communicatin system with sufficient resources to operate at a required level of performance. 3.3.1.2...Command (CORADCO4) and standard Digital Equipment Corporation VAX 11/780 system * software. Plans include the hosting of Ada/ED on the VAX 11/780 at the... Corporation , Bedford, MA, August, 1978. b. /LOGl79a/ LOGICON, "Formal Specification of GUARD Trusted Software (Draft)," ARPA-78C032303, September, 1979

  17. Examining the reliability of ADAS-Cog change scores.

    Science.gov (United States)

    Grochowalski, Joseph H; Liu, Ying; Siedlecki, Karen L

    2016-09-01

    The purpose of this study was to estimate and examine ways to improve the reliability of change scores on the Alzheimer's Disease Assessment Scale, Cognitive Subtest (ADAS-Cog). The sample, provided by the Alzheimer's Disease Neuroimaging Initiative, included individuals with Alzheimer's disease (AD) (n = 153) and individuals with mild cognitive impairment (MCI) (n = 352). All participants were administered the ADAS-Cog at baseline and 1 year, and change scores were calculated as the difference in scores over the 1-year period. Three types of change score reliabilities were estimated using multivariate generalizability. Two methods to increase change score reliability were evaluated: reweighting the subtests of the scale and adding more subtests. Reliability of ADAS-Cog change scores over 1 year was low for both the AD sample (ranging from .53 to .64) and the MCI sample (.39 to .61). Reweighting the change scores from the AD sample improved reliability (.68 to .76), but lengthening provided no useful improvement for either sample. The MCI change scores had low reliability, even with reweighting and adding additional subtests. The ADAS-Cog scores had low reliability for measuring change. Researchers using the ADAS-Cog should estimate and report reliability for their use of the change scores. The ADAS-Cog change scores are not recommended for assessment of meaningful clinical change.

  18. Hydraulic Capacity of an ADA Compliant Street Drain Grate

    Energy Technology Data Exchange (ETDEWEB)

    Lottes, Steven A. [Argonne National Lab. (ANL), Argonne, IL (United States); Bojanowski, Cezary [Argonne National Lab. (ANL), Argonne, IL (United States)

    2015-09-01

    Resurfacing of urban roads with concurrent repairs and replacement of sections of curb and sidewalk may require pedestrian ramps that are compliant with the American Disabilities Act (ADA), and when street drains are in close proximity to the walkway, ADA compliant street grates may also be required. The Minnesota Department of Transportation ADA Operations Unit identified a foundry with an available grate that meets ADA requirements. Argonne National Laboratory’s Transportation Research and Analysis Computing Center used full scale three dimensional computational fluid dynamics to determine the performance of the ADA compliant grate and compared it to that of a standard vane grate. Analysis of a parametric set of cases was carried out, including variation in longitudinal, gutter, and cross street slopes and the water spread from the curb. The performance of the grates was characterized by the fraction of the total volume flow approaching the grate from the upstream that was captured by the grate and diverted into the catch basin. The fraction of the total flow entering over the grate from the side and the fraction of flow directly over a grate diverted into the catch basin were also quantities of interest that aid in understanding the differences in performance of the grates. The ADA compliant grate performance lagged that of the vane grate, increasingly so as upstream Reynolds number increased. The major factor leading to the performance difference between the two grates was the fraction of flow directly over the grates that is captured by the grates.

  19. Las drogas diseñadas

    Directory of Open Access Journals (Sweden)

    Eddie Alvarado Vargas

    1998-12-01

    Full Text Available Cada vez cobra más fuerza la clasificación de las drogas que las divide en psictrópicos y estupefacientes y en Costa Rica se ha añadido la sustancia inhalable. Se hace una ligera definición sobre lo que es una droga y la diferencia con las sustancias indispensables para el organismo como son el agua, el oxígeno y los alimentos las cuales son necesarias para el mismo. En el mundo cada vez es mayor el número de estas sustancias fiscalizadas, y que es considerada una acción delictiva en determinadas ocasiones. Convenios internacionales que deben ser ratificados por las naciones exige que se especifique previamente el objeto material del Delito. Las Drogas Diseñadas son aquellas que por algún cambio realizado en un laboratorio sobre su molécula, tienen los efectos muchas veces superiores a la droga madre, pero que por no estar en la lista de drogas fiscalizadas en el momento de aparición de la misma, va permitiendo que, mientras se agrega a la lista de las mencionadas drogas fiscalizadas, estos actos queden impunes con gran daño por la Salud Pública y del individuo durante mucho tiempo. Costa Rica no escapa de esta realidad por lo que el "narcotraficante" siempre irá adelante con nuevas drogas diseñadas causando grandes estragos, mientras las mismas poco a poco se van incluyendo en la lista de sustancias fiscalizadas. Se hace mención sobre posibles soluciones, entre ellas está incluir en las listas de los convenios internacionales, decretos y reglamentos, nueva terminología que incluya las posibles variaciones de las moléculas de las sustancias fiscalizadas.Every time takes greater force the clasification of drugs, which are divided in psichotropics and stupefacients, and in Costa Rica a new classification has been added: inhalable sustances. A light definition of what a drug is and the difference between the indispensable sustances for the organism like the water, oxigen and food which are necesary for life.Every time the number

  20. Two Arabidopsis orthologs of the transcriptional coactivator ADA2 have distinct biological functions.

    Science.gov (United States)

    Hark, Amy T; Vlachonasios, Konstantinos E; Pavangadkar, Kanchan A; Rao, Sumana; Gordon, Hillary; Adamakis, Ioannis-Dimosthenis; Kaldis, Athanasios; Thomashow, Michael F; Triezenberg, Steven J

    2009-02-01

    Histone acetylation is an example of covalent modification of chromatin structure that has the potential to regulate gene expression. Gcn5 is a prototypical histone acetyltransferase that associates with the transcriptional coactivator Ada2. In Arabidopsis, two genes encode proteins that resemble yeast ADA2 and share approximately 45% amino acid sequence identity. We previously reported that plants harboring a T-DNA insertion in the ADA2b gene display a dwarf phenotype with developmental defects in several organs. Here we describe T-DNA insertion alleles in the ADA2a gene, which result in no dramatic growth or developmental phenotype. Both ADA2a and ADA2b are expressed in a variety of plant tissues; moreover, expression of ADA2a from a constitutive promoter fails to complement the ada2b-1 mutant phenotype, consistent with the hypothesis that the two proteins have distinct biochemical roles. To further probe the cellular roles of ADA2a and ADA2b, we studied the response of the transcriptional coactivator mutants to abiotic stress. Although ada2b seedlings display hypersensitivity to salt and abscisic acid and altered responses to low temperature stress, the responses of ada2a seedlings to abiotic stress generally parallel those of wildtype plants. Intriguingly, ada2a;ada2b double mutant plants display an intermediate, gcn5-like phenotype, suggesting that ADA2a and ADA2b each work independently with GCN5 to affect genome function in Arabidopsis.

  1. Remolding Diversified Objects in Ada95: Toward A-Object Pattern

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Ada provides full capacities of supporting object-orientation,but the diversified objects patterned in Ada are so intricate that Ada95's aim would be demolished. In order to complement the disfigurement that Ada does lack for a pr istine notion of class, this paper presents a remolded object pattern known as A -object, an Ada-based class description language A-ObjAda aiming at support f or A-object pattern and the related approach for key algorithms and implementation . In consequent, A-ObjAda hereby promotes Ada with highlighted object-orientati on , which not only effectively exploits the capacities in Ada95, but also rational ly hides befuddling concepts from Ada95.

  2. History of the discovery of a master locus producing piRNAs: the flamenco/COM locus in Drosophila melanogaster

    Directory of Open Access Journals (Sweden)

    Coline eGoriaux

    2014-08-01

    Full Text Available The discovery of transposable elements (TEs in the 1950s by B. McClintock implied the existence of cellular regulatory systems controlling TE activity. The discovery of flam an heterochromatic locus from Drosophila melanogaster and its ability to survey several TEs such as gypsy, ZAM and Idefix contributed to peer deeply into the mechanisms of the genetic and epigenetic regulation of TEs. flam was the first cluster producing small RNAs to be discovered long before RNAi pathways were identified in 1998. As a result of the detailed genetic analyses performed by certain laboratories and of the sophisticated genetic tools they developed, this locus has played a major role in our understanding of piRNA mediated TE repression in animals. Here we review the first discovery of this locus and retrace decades of studies that led to our current understanding of the relationship between genomes and their TE targets.

  3. History of the discovery of a master locus producing piRNAs: the flamenco/COM locus in Drosophila melanogaster.

    Science.gov (United States)

    Goriaux, Coline; Théron, Emmanuelle; Brasset, Emilie; Vaury, Chantal

    2014-01-01

    The discovery of transposable elements (TEs) in the 1950s by B. McClintock implied the existence of cellular regulatory systems controlling TE activity. The discovery of flamenco (flam) an heterochromatic locus from Drosophila melanogaster and its ability to survey several TEs such as gypsy, ZAM, and Idefix contributed to peer deeply into the mechanisms of the genetic and epigenetic regulation of TEs. flam was the first cluster producing small RNAs to be discovered long before RNAi pathways were identified in 1998. As a result of the detailed genetic analyses performed by certain laboratories and of the sophisticated genetic tools they developed, this locus has played a major role in our understanding of piRNA mediated TE repression in animals. Here we review the first discovery of this locus and retrace decades of studies that led to our current understanding of the relationship between genomes and their TE targets.

  4. The glucokinase locus is an important contributor to glucose variation in the Chinese population at high risk for type II diabetes

    Energy Technology Data Exchange (ETDEWEB)

    Wu, D.A. [UCLA, Los Angeles, CA (United States)]|[Triservice General Hospital, Taipei, (Taiwan, Province of China); Warden, C.H.; Lusis, A.J. [UCLA, Los Angeles, CA (United States)] [and others

    1994-09-01

    Recently, major advances have been achieved in the genetics of maturity onset diabetes of the young (MODY) with two loci identified: the glucokinase (GCK) gene on chromosome (chr.) 7p and a locus near the adenosine deaminase (ADA) gene on chr. 20q. However, it is not known whether either of these MODY loci contribute to variation in glucose metabolism in populations other than MODY families. To examine this question, we have studied 94 Chinese nuclear families; 54 have both parents affected with type II diabetes, 22 have only one parent affected, and 18 have both normal parents. None of the affected diabetic probands were diagnosed prior to adulthood. Nondiabetic offspring were phenotyped by measuring plasma glucose and insulin responses to an oral glucose challenge. Parents and nondiabetic offspring were genotyped for dinucleotide repeat markers. two near the GCK locus and one near the ADA locus. Prior to linkage analysis, both glucose and insulin response variables were adjusted for the effects of age, sex, and body mass index. By non-parametric quantitative sib-pair linkage analysis, we found no evidence for linkage of glucose response variables with the ADA locus on chr. 20q (p=0.64-0.92, 146 sibpairs). However, significant evidence for linkage of log-transformed integrated glucose response area was observed with the GCK locus (haplotypes based on two tightly linked GCK markers) on chr. 7p (p=0.001, N=127). Linkage with the GCK locus was also demonstrated. In contrast, insulin variables, including integrated response area and responses at different time points, showed no evidence of linkage with either the ADA or GCK loci, despite the positive correlation between glucose and insulin responses in these families. These data raise the possibility that the GCK gene may be involved as one of the contributing genes in the etiology of type II diabetes in the Chinese population.

  5. AdaNET phase 0 support for the AdaNET Dynamic Software Inventory (DSI) management system prototype. Catalog of available reusable software components

    Science.gov (United States)

    Hanley, Lionel

    1989-01-01

    The Ada Software Repository is a public-domain collection of Ada software and information. The Ada Software Repository is one of several repositories located on the SIMTEL20 Defense Data Network host computer at White Sands Missile Range, and available to any host computer on the network since 26 November 1984. This repository provides a free source for Ada programs and information. The Ada Software Repository is divided into several subdirectories. These directories are organized by topic, and their names and a brief overview of their topics are contained. The Ada Software Repository on SIMTEL20 serves two basic roles: to promote the exchange and use (reusability) of Ada programs and tools (including components) and to promote Ada education.

  6. Propagation of genetic variation in gene regulatory networks.

    Science.gov (United States)

    Plahte, Erik; Gjuvsland, Arne B; Omholt, Stig W

    2013-08-01

    A future quantitative genetics theory should link genetic variation to phenotypic variation in a causally cohesive way based on how genes actually work and interact. We provide a theoretical framework for predicting and understanding the manifestation of genetic variation in haploid and diploid regulatory networks with arbitrary feedback structures and intra-locus and inter-locus functional dependencies. Using results from network and graph theory, we define propagation functions describing how genetic variation in a locus is propagated through the network, and show how their derivatives are related to the network's feedback structure. Similarly, feedback functions describe the effect of genotypic variation of a locus on itself, either directly or mediated by the network. A simple sign rule relates the sign of the derivative of the feedback function of any locus to the feedback loops involving that particular locus. We show that the sign of the phenotypically manifested interaction between alleles at a diploid locus is equal to the sign of the dominant feedback loop involving that particular locus, in accordance with recent results for a single locus system. Our results provide tools by which one can use observable equilibrium concentrations of gene products to disclose structural properties of the network architecture. Our work is a step towards a theory capable of explaining the pleiotropy and epistasis features of genetic variation in complex regulatory networks as functions of regulatory anatomy and functional location of the genetic variation.

  7. TO ESTIMATE SERUM ADA LEVELS IN BCG VACCINATED CHILDREN

    Directory of Open Access Journals (Sweden)

    Manjunatha Babu

    2015-04-01

    Full Text Available BACKGROUND: Tuberculosis is an important cause of morbidity and mortality in both adults and children, especially in developing countries. For prevention of childhood tuberculosis, BCG vaccination is advocated. Protection is attained 4 - 6 weeks after BCG vaccination a nd is mainly due to cell mediated immunity. After BCG vaccination almost 12 to 15% of neonates do not develop scar but have positive cell mediated immune response. ADA estimation is simple and inexpensive method to assess the cell mediated immunity. OBJECT IVE: To estimate serum ADA levels in children with and without BCG scar, after receiving BCG vaccination. MATERIAL AND METHODS: This prospective observational study was conducted at a tertiary care hospital for a period of 2 years. Babies in post natal ward and infants up to the age of 12 weeks attending well baby clinic for BCG vaccination were included in the study. Serum ADA lev els were estimated before BCG vaccination and 12 - 14 weeks after the vaccination. ADA levels were estimated by colorimetric method. Presence or absence of BCG scar was noted at 12 - 14 weeks of age. RESULTS: A total of 75 babies followed up, of which only 60 babies noted to have scar and in rest 15 babies there was no scar noticed. Twenty unvaccinated babies at 12 weeks of age were included as controls. The Mean ADA levels are significantly elevated after BCG vaccination (34 . 12 ± 3 . 28 U/L in comparison to le vels before vaccination (12 . 55± 2 . 64 U/L with p value 0. 06. CONCLUSION: After BCG vaccination, there is increase in serum ADA levels indicating adequ ate immunity. Increase in ADA levels in children without scar after BCG vaccination may indicate the probability of adequate immunity.

  8. Regulatory agencies and regulatory risk

    OpenAIRE

    Knieps, Günter; Weiß, Hans-Jörg

    2007-01-01

    The aim of this paper is to show that regulatory risk is due to the discretionary behaviour of regulatory agencies, caused by a too extensive regulatory mandate provided by the legislator. The normative point of reference and a behavioural model of regulatory agencies based on the positive theory of regulation are presented. Regulatory risk with regard to the future behaviour of regulatory agencies is modelled as the consequence of the ex ante uncertainty about the relative influence of inter...

  9. ADA1 and NET1 Genes of Yeast Mediate Both Chromosome Maintenance and Mitochondrial $\\rho^{-}$ Mutagenesis

    CERN Document Server

    Koltovaya, N A; Tchekhouta, I A; Devin, A B

    2002-01-01

    An increase in the mitochondrial (mt) rho^- mutagenesis is a well-known respose of yeast cells to mutations in the numerous nuclear genes as well as to various kinds of stress. Notwithstanding the extensive studies during several decades the biological significance of this response is not yet fully understood. The genetic approach to solution of this subject includes the study of genes that are required for the high incidence of spontaneous rho^- mutants. Previously we found that mutations in certain nuclear genes including CDC28, the central cell-cycle regulation gene, may decrease the spontaneous rho^- mutability and simultaneously affect maintenance of the yeast chromosomes and plasmids. The present work provides data on identification of two more genes, resembling CDC28 in this respect. These genes NET1 and ADA1 mediate important regulatory protein-protein interactions in the yeast cell. The effects of net1 and ada1 mutations on the maintenance of yeast mt genome, chromosomes and plasmids as well as on ce...

  10. Analysis of Generalization Ability for Different AdaBoost Variants Based on Classification and Regression Trees

    Directory of Open Access Journals (Sweden)

    Shuqiong Wu

    2015-01-01

    Full Text Available As a machine learning method, AdaBoost is widely applied to data classification and object detection because of its robustness and efficiency. AdaBoost constructs a global and optimal combination of weak classifiers based on a sample reweighting. It is known that this kind of combination improves the classification performance tremendously. As the popularity of AdaBoost increases, many variants have been proposed to improve the performance of AdaBoost. Then, a lot of comparison and review studies for AdaBoost variants have also been published. Some researchers compared different AdaBoost variants by experiments in their own fields, and others reviewed various AdaBoost variants by basically introducing these algorithms. However, there is a lack of mathematical analysis of the generalization abilities for different AdaBoost variants. In this paper, we analyze the generalization abilities of six AdaBoost variants in terms of classification margins. The six compared variants are Real AdaBoost, Gentle AdaBoost, Modest AdaBoost, Parameterized AdaBoost, Margin-pruning Boost, and Penalized AdaBoost. Finally, we use experiments to verify our analyses.

  11. An automated quality assessor for Ada object-oriented designs

    Science.gov (United States)

    Bailin, Sidney C.

    1988-01-01

    A tool for evaluating object-oriented designs (OODs) for Ada software is described. The tool assumes a design expressed as a hierarchy of object diagrams. A design of this type identifies the objects of a system, an interface to each object, and the usage relationships between objects. When such a design is implemented in Ada, objects become packages, interfaces become package specifications, and usage relationships become Ada `with' clauses and package references. An automated quality assessor has been developed that is based on flagging undesirable design constructs. For convenience, distinctions are made among three levels of severity: questionable, undesirable, and hazardous. A questionable construct is one that may well be appropriate. An undesirable construct is one that should be changed because it is potentially harmful to the reliability, maintainability, or reusability of the software. A hazardous construct is one that is undesirable and that introduces a high level of risk.

  12. An Ada run-time control architecture for telerobots

    Science.gov (United States)

    Balaram, J.; Rodriguez, G.

    1987-01-01

    This paper describes the architecture and Ada language implementation of a process-level run-time control subystem for the Jet Propulsion Laboratory (JPL) telerobot system. The concept of run-time control in a combined robot-teleoperation environment is examined and the telerobot system at JPL is described. An Ada language implementation of the JPL Telerobot Run-Time Controller (RTC) is described by highlighting the functional behavior of the subsystem, defining the internal modules, and providing a functional flow time sequence of internal module activity.

  13. The development of an Ada programming support environment database: SEAD (Software Engineering and Ada Database), user's manual

    Science.gov (United States)

    Liaw, Morris; Evesson, Donna

    1988-01-01

    This is a manual for users of the Software Engineering and Ada Database (SEAD). SEAD was developed to provide an information resource to NASA and NASA contractors with respect to Ada-based resources and activities that are available or underway either in NASA or elsewhere in the worldwide Ada community. The sharing of such information will reduce the duplication of effort while improving quality in the development of future software systems. The manual describes the organization of the data in SEAD, the user interface from logging in to logging out, and concludes with a ten chapter tutorial on how to use the information in SEAD. Two appendices provide quick reference for logging into SEAD and using the keyboard of an IBM 3270 or VT100 computer terminal.

  14. A genetic map of chromosome 20q12-q13. 1: Multiple highly polymorphic microsatellite and RFLP markers linked to the maturity-onset diabetes of the Young (MODY) locus

    Energy Technology Data Exchange (ETDEWEB)

    Rothschild, C.B.; Akots, G.; Hayworth, R.; Pettenati, M.J.; Rao, P.N.; Wood, P. (Wake Forest Univ., Winston-Salem, NC (United States)); Stolz, F.M.; Hansmann, I. (Universitaet Goettingen (Germany)); Serino, K.; Keith, T.P. (Collaborative Research Inc., Waltham, MA (United States)); Fajans, S.S. (Univ. of Michigan Medical Center, Ann Arbor (United States))

    1993-01-01

    Multiple highly polymorphic markers have been used to construct a genetic map of the q12-q13.1 region of chromosome 20 and to map the location of the maturity-onset diabetes of the young (MODY) locus. The genetic map encompasses 23 cM and includes 11 loci with PIC values >.50, seven of which have PICs >.70. New dinucleotide repeat polymorphisms associated with the D20S17, PPGB, and ADA loci have been identified and mapped. The dinucleotide repeat polymorphisms have increased the PIC of the ADA locus to .89 and, with an additional RFLP at the D20S17 locus, the PIC of the D20S17 locus to .88. The order of the D20S17 and ADA loci determined genetically (cen-ADA-D20S17-qter) was confirmed by multicolor fluorescence in situ hybridization. The previously unmapped PPGB marker is closely linked to D20S17, with a two-point lod score of 50.53 at [cflx [theta

  15. AdaBoost分类算法的数学分析%The Mathematical Analysis of AdaBoost Algorithm

    Institute of Scientific and Technical Information of China (English)

    王兵

    2014-01-01

    This article provides a gentle introduction to the AdaBoost algorithm, and the mathematical analysis of how to draft classifiers and assign a weight for them, finally form a strong classifier through a set of weak classifiers.%本文对AdaBoost算法进行了介绍,并从整个数学推导过程中分析怎样挑选分类器并设置权值,最终通过一组弱分类器组合构成强分类器。

  16. The Rate of Convergence of AdaBoost

    CERN Document Server

    Mukherjee, Indraneel; Schapire, Robert E

    2011-01-01

    The AdaBoost algorithm was designed to combine many "weak" hypotheses that perform slightly better than random guessing into a "strong" hypothesis that has very low error. We study the rate at which AdaBoost iteratively converges to the minimum of the "exponential loss." Unlike previous work, our proofs do not require a weak-learning assumption, nor do they require that minimizers of the exponential loss are finite. Our first result shows that at iteration $t$, the exponential loss of AdaBoost's computed parameter vector will be at most $\\epsilon$ more than that of any parameter vector of $\\ell_1$-norm bounded by $B$ in a number of rounds that is at most a polynomial in $B$ and $1/\\epsilon$. We also provide lower bounds showing that a polynomial dependence on these parameters is necessary. Our second result is that within $C/\\epsilon$ iterations, AdaBoost achieves a value of the exponential loss that is at most $\\epsilon$ more than the best possible value, where $C$ depends on the dataset. We show that this d...

  17. ADA and multi-microprocessor real-time simulation

    Science.gov (United States)

    Feyock, S.; Collins, W. R.

    1983-01-01

    The selection of a high-order programming language for a real-time distributed network simulation is described. The additional problem of implementing a language on a possibly changing network is addressed. The recently designed language ADA (trademarked by DoD) was chosen since it provides the best model of the underlying application to be simulated.

  18. 77 FR 36231 - Americans With Disabilities Act (ADA) and Architectural Barriers Act (ABA) Accessibility...

    Science.gov (United States)

    2012-06-18

    ... Architectural Barriers Act (ABA) Accessibility Guidelines; Emergency Transportable Housing Units AGENCY... Disabilities Act (ADA) and Architectural Barriers Act (ABA) Accessibility Guidelines to specifically address... the ADA or ABA are readily accessible to and usable by individuals with disabilities. Other...

  19. CSF ADENOSINE DEAMINASE (ADA ACTIVITY IN PATIENTS WITH MENINGITIS

    Directory of Open Access Journals (Sweden)

    Justin

    2016-05-01

    Full Text Available Meningitis is inflammation of the meninges (pia, arachnoid and dura mater covering the brain and the spinal cord. ADA is an enzyme in the purine salvage pathway which is found in abundance in active T-lymphocytes. Hence, an attempt was made to estimate the CSF ADA level in patients with suspected meningitis and throw light on its use in differentiating the various types of meningitis. AIMS AND OBJECTIVES To estimate the level of CSF adenosine deaminase level in different types of meningitis. To assess its usefulness in differentiating the various types (bacterial, viral and tuberculous of meningitis. MATERIALS AND METHODS The study was conducted at the medical wards of Govt. Rajaji Hospital, Madurai, a prospective analytical study from a period of April 2012 to September 2012. OBSERVATION AND RESULTS Tuberculous meningitis occurred more in the age group of 21–40 years. Bacterial meningitis was seen mainly in patients < 20 years of age. Viral meningitis was seen in all age groups. CSF ADA level was highest in tuberculous meningitis, the mean value being 24.5 U/L. The mean value of ADA in bacterial meningitis was 4.54 U/L and viral meningitis patients had lowest mean ADA value of 2.65 U/L. CONCLUSION In our study, 50 patients with meningitis admitted in Government Rajaji Hospital from April 2012 to September 2012 were evaluated. Meningitis predominantly affected people in the age group of 20-40 years in our study with a male: female ratio of 1.9:1. Cases of tuberculous meningitis constituted 48% of the study group and bacterial and viral meningitis were 26% each. CSF protein values were higher and sugar values lower in patients with tuberculous and bacterial meningitis. CSF cell counts were higher in patients with bacterial meningitis.

  20. [Study on preferred retinal locus].

    Science.gov (United States)

    Dai, Bing-Fa; Hu, Jian-Min; Xu, Duan-Lian

    2012-03-01

    Preferred retinal locus (PRL) is always found in the age-related macular degeneration and other macular damages in patients with low vision, and it is a very important anatomic position in patients with central vision impairment to achieve the rehabilitation. In recent years, the training of preferred retinal locus (PRL) has become a research hotspot of low vision rehabilitation, it can clearly improve functional vision and quality of life. The authors reviewed relevant literatures, and summarized the definition, position, characteristics, training and clinical implications of the PRL.

  1. A genetic map of chromosome 20q12-q13.1: multiple highly polymorphic microsatellite and RFLP markers linked to the maturity-onset diabetes of the young (MODY) locus.

    Science.gov (United States)

    Rothschild, C B; Akots, G; Hayworth, R; Pettenati, M J; Rao, P N; Wood, P; Stolz, F M; Hansmann, I; Serino, K; Keith, T P

    1993-01-01

    Multiple highly polymorphic markers have been used to construct a genetic map of the q12-q13.1 region of chromosome 20 and to map the location of the maturity-onset diabetes of the young (MODY) locus. The genetic map encompasses 23 cM and includes 11 loci with PIC values > .50, seven of which have PICs > .70. New dinucleotide repeat polymorphisms associated with the D20S17, PPGB, and ADA loci have been identified and mapped. The dinucleotide repeat polymorphisms have increased the PIC of the ADA locus to .89 and, with an additional RFLP at the D20S17 locus, the PIC of the D20S17 locus to .88. The order of the D20S17 and ADA loci determined genetically (cen-ADA-D20S17-qter) was confirmed by multicolor fluorescence in situ hybridization. The previously unmapped PPGB marker is closely linked to D20S17, with a two-point lod score of 50.53 at theta = .005. These markers and dinucleotide repeat markers associated with the D20S43, D20S46, D20S55, D20S75, and PLC1 loci and RFLPs at the D20S16, D20S17, D20S22, and D20S33 have been used to map the MODY locus on chromosome 20 to a 13-cM (sex averaged) interval encompassing ADA, D20S17, PPGB, D20S16, and D20S75 on the long arm of chromosome 20 and to create a genetic framework for additional genetic and physical mapping studies of the region. With these multiple highly polymorphic loci, any MODY family of appropriate size can be tested for the chromosome 20 linkage.

  2. A Pre-Allocation Strategy for Implement ADA95's Distrbuted Computing

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    In order to realize distributed computing of Ada95, this paper discusses Ada95's distributed system model and an implement model of Ada95's distributed computing—workstation cluster model. Under this model, we presents a pre-allocation strategy for allocating the computation quantity of distributed units evenly among workstations and also reducing the communication expense between those distributed units.

  3. 76 FR 38129 - Applications for New Awards; Americans With Disabilities Act (ADA) National Network Knowledge...

    Science.gov (United States)

    2011-06-29

    ... Applications for New Awards; Americans With Disabilities Act (ADA) National Network Knowledge Translation... Rehabilitation Research Projects (DRRP)--The ADA National Network Knowledge Translation Center Notice inviting... April 28, 2006 (71 FR 25472). The ADA National Network Knowledge Translation Center priority is from...

  4. AdaBoost for Improved Voice-Band Signal Classification

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    A good voice-band signal classification can not only enable the safe application of speech coding techniques,the implementation of a Digital Signal Interpolation (DSI)system, but also facilitate network administration and planning by providing accurate voice-band traffic analysis.A new method is proposed to detect and classify the presence of various voice-band signals on the General Switched Telephone Network ( GSTN ). The method uses a combination of simple base classifiers through the AdaBoost algorithm. The conventional classification features for voiceband data classification are combined and optimized by the AdaBoost algorithm and spectral subtraction method.Experiments show the simpleness, effectiveness, efficiency and flexibility of the method.

  5. Olimpíadas e geopolítica

    Directory of Open Access Journals (Sweden)

    João Fábio Bertonha

    2008-09-01

    Full Text Available

    o artigo trata de competições esportivas,

    em especial as olimpíadas. Nelas, valorizam-se o

    nacionalismo e o poder dos países.

  6. Extracting Objects from Ada83 Programs: A Case Study

    Institute of Scientific and Technical Information of China (English)

    XU Baowen; ZHOU Yuming

    2001-01-01

    Reengineering legacy systems written in conventional procedural languages to equivalent OO systems makes software more maintainable and reliable. This paper proposes a method for extracting objects from legacy Ada83 systems using module features. First, metrics are developed to measure module cohesion. Then, effects on cohesion from changing module components are analyzed and rules about how to extract inheritance relations among objects are given. At the end of this paper, an object-extracting algorithm using module features is proposed.

  7. AN ADA LINEAR ALGEBRA PACKAGE MODELED AFTER HAL/S

    Science.gov (United States)

    Klumpp, A. R.

    1994-01-01

    This package extends the Ada programming language to include linear algebra capabilities similar to those of the HAL/S programming language. The package is designed for avionics applications such as Space Station flight software. In addition to the HAL/S built-in functions, the package incorporates the quaternion functions used in the Shuttle and Galileo projects, and routines from LINPAK that solve systems of equations involving general square matrices. Language conventions in this package follow those of HAL/S to the maximum extent practical and minimize the effort required for writing new avionics software and translating existent software into Ada. Valid numeric types in this package include scalar, vector, matrix, and quaternion declarations. (Quaternions are fourcomponent vectors used in representing motion between two coordinate frames). Single precision and double precision floating point arithmetic is available in addition to the standard double precision integer manipulation. Infix operators are used instead of function calls to define dot products, cross products, quaternion products, and mixed scalar-vector, scalar-matrix, and vector-matrix products. The package contains two generic programs: one for floating point, and one for integer. The actual component type is passed as a formal parameter to the generic linear algebra package. The procedures for solving systems of linear equations defined by general matrices include GEFA, GECO, GESL, and GIDI. The HAL/S functions include ABVAL, UNIT, TRACE, DET, INVERSE, TRANSPOSE, GET, PUT, FETCH, PLACE, and IDENTITY. This package is written in Ada (Version 1.2) for batch execution and is machine independent. The linear algebra software depends on nothing outside the Ada language except for a call to a square root function for floating point scalars (such as SQRT in the DEC VAX MATHLIB library). This program was developed in 1989, and is a copyrighted work with all copyright vested in NASA.

  8. The INTEL 432/670 and ADA Performance Benchmarks.

    Science.gov (United States)

    1982-12-01

    a QUICK.MSE"); with text4-io,imtio~guicksort; use texto -io,intio,quicksort; package body OUICKSORT is procedure SORT(1eft~ri(3ht : in subimt; arg...time and ’fuss’, A knowledge of ADA is assumed, as is familiarity with VMS (e.g. the VMS editor ), Referring back to Figure(63 it can be seen that a

  9. Software tools to aid Pascal and Ada program design

    Energy Technology Data Exchange (ETDEWEB)

    Jankowitz, H.T.

    1987-01-01

    This thesis describes a software tool which analyses the style and structure of Pascal and Ada programs by ensuring that some minimum design requirements are fulfilled. The tool is used in much the same way as a compiler is used to teach students the syntax of a language, only in this case issues related to the design and structure of the program are of paramount importance. The tool operates by analyzing the design and structure of a syntactically correct program, automatically generating a report detailing changes that need to be made in order to ensure that the program is structurally sound. The author discusses how the model gradually evolved from a plagiarism detection system which extracted several measurable characteristics in a program to a model that analyzed the style of Pascal programs. In order to incorporate more-sophistical concepts like data abstraction, information hiding and data protection, this model was then extended to analyze the composition of Ada programs. The Ada model takes full advantage of facilities offered in the language and by using this tool the standard and quality of written programs is raised whilst the fundamental principles of program design are grasped through a process of self-tuition.

  10. Large distributed control system using ADA in fusion research

    Energy Technology Data Exchange (ETDEWEB)

    Woodruff, J. P., LLNL

    1998-04-21

    Construction of the National Ignition Facility laser at Lawrence Livermore National Laboratory features a large distributed control system constructed using object-oriented software engineering techniques. Control of 60,000 devices is effected using a network of some 500 computers that run software written in Ada and communicating through CORBA. The project has completed its final design review; implementation of the first of five planned increments will be delivered at the end of fiscal year 1998. Preliminary measures of the distributed controls performance confirm the design decisions reported in this paper, and the measurement and supporting simulation of full system performance continue.

  11. Automated flare prediction using the AdaBoost algorithm

    Institute of Scientific and Technical Information of China (English)

    Ru-Shi Lan; Yong Jiang; Liu-Guan Ding; Jian-Wei Yang

    2012-01-01

    We propose a flare prediction method based on the AdaBoost algorithm,which constructs a strong prediction model from a combination of several basic models.Three predictors,extracted from the photospheric magnetograms,are applied as features to predict the occurrence of flares with a certain level over 24 hours following the time when the magnetogram is recorded.To demonstrate the effectiveness of the proposed method,comparisons of experimental results with respect to some existing methods are given.The results show that an improvement is achieved in predicting the occurrences of large flares.

  12. ADaPPT: Enterprise Architecture Thinking for Information Systems Development

    Directory of Open Access Journals (Sweden)

    Hanifa Shah

    2011-01-01

    Full Text Available Enterprises have architecture: whether it is visible or invisible is another matter. An enterprises' architecture determines the way in which it works to deliver its business objectives and the way in which it can change to continue to meet its evolving business objectives. Enterprise architectural thinking can facilitate effective strategic planning and information systems development. This paper reviews enterprise architecture (EA and its concepts. It briefly considers EA frameworks. It describes the ADaPPT (Aligning Data, People, Processes and Technology EA approach as a means to managing organisational complexity and change. Future research directions are discussed.

  13. Event-based Implicit Invocation Decentralized in Ada

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Nowadays more and more attraction is drawn by the event-basedimplicit invocation - one of useful architectural patterns, because of its loose couplin g between components in the architecture and reactive integration in software sys tems. Analyzing object-oriented interaction with objects, this paper, based upo n the principle of software architecture, presents an approach on event-based ob j ect model with Ada exception handler. Consequently it is possible for us to impr ove, with adding specific architectural patterns, traditional programming langua ges into architectural description languages.

  14. TCP-ADaLR: TCP with adaptive delay and loss response for broadband GEO satellite networks

    OpenAIRE

    Omueti, Modupe Omogbohun

    2007-01-01

    Transmission Control Protocol (TCP) performance degrades in broadband geostationary satellite networks due to long propagation delays and high bit error rates. In this thesis, we propose TCP with algorithm modifications for adaptive delay and loss response (TCP-ADaLR) to improve TCP performance. TCP-ADaLR incorporates delayed acknowledgement mechanism recommended for Internet hosts. We evaluate and compare the performance of TCP-ADaLR, TCP SACK, and TCP NewReno, with and without delayed ackno...

  15. Successful reconstitution of immunity in ADA-SCID by stem cell gene therapy following cessation of PEG-ADA and use of mild preconditioning.

    Science.gov (United States)

    Gaspar, H Bobby; Bjorkegren, Emma; Parsley, Kate; Gilmour, Kimberly C; King, Doug; Sinclair, Joanna; Zhang, Fang; Giannakopoulos, Aris; Adams, Stuart; Fairbanks, Lynette D; Gaspar, Jane; Henderson, Lesley; Xu-Bayford, Jin Hua; Davies, E Graham; Veys, Paul A; Kinnon, Christine; Thrasher, Adrian J

    2006-10-01

    Gene therapy is a promising treatment option for monogenic diseases, but success has been seen in only a handful of studies thus far. We now document successful reconstitution of immune function in a child with the adenosine deaminase (ADA)-deficient form of severe combined immunodeficiency (SCID) following hematopoietic stem cell (HSC) gene therapy. An ADA-SCID child who showed a poor response to PEG-ADA enzyme replacement was enrolled into the clinical study. Following cessation of enzyme replacement therapy, autologous CD34(+) HSCs were transduced with an ADA-expressing gammaretroviral vector. Gene-modified cells were reinfused following one dose of preconditioning chemotherapy. Two years after the procedure, immunological and biochemical correction has been maintained with progressive increase in lymphocyte numbers, reinitiation of thymopoiesis, and systemic detoxification of ADA metabolites. Sustained vector marking with detection of polyclonal vector integration sites in multiple cell lineages and detection of ADA activity in red blood cells suggests transduction of early hematopoietic progenitors. No serious side effects were seen either as a result of the conditioning procedure or due to retroviral insertion. Gene therapy is an effective treatment option for the treatment of ADA-SCID.

  16. Characterization of a Multipeptide Lantibiotic Locus in Streptococcus pneumoniae

    Directory of Open Access Journals (Sweden)

    Natalie Maricic

    2016-01-01

    Full Text Available Bacterial communities are established through a combination of cooperative and antagonistic interactions between the inhabitants. Competitive interactions often involve the production of antimicrobial substances, including bacteriocins, which are small antimicrobial peptides that target other community members. Despite the nearly ubiquitous presence of bacteriocin-encoding loci, inhibitory activity has been attributed to only a small fraction of gene clusters. In this study, we characterized a novel locus (the pld locus in the pathogen Streptococcus pneumoniae that drives the production of a bacteriocin called pneumolancidin, which has broad antimicrobial activity. The locus encodes an unusual tandem array of four inhibitory peptides, three of which are absolutely required for antibacterial activity. The three peptide sequences are similar but appear to play distinct roles in regulation and inhibition. A modification enzyme typically found in loci encoding a class of highly modified bacteriocins called lantibiotics was required for inhibitory activity. The production of pneumolancidin is controlled by a two-component regulatory system that is activated by the accumulation of modified peptides. The locus is located on a mobile element that has been found in many pneumococcal lineages, although not all elements carry the pld genes. Intriguingly, a minimal region containing only the genes required for pneumolancidin immunity was found in several Streptococcus mitis strains. The pneumolancidin-producing strain can inhibit nearly all pneumococci tested to date and provided a competitive advantage in vivo. These peptides not only represent a unique strategy for bacterial competition but also are an important resource to guide the development of new antimicrobials.

  17. TRW’s Ada Process Model for Incremental Development of Large Software Systems

    Science.gov (United States)

    1990-01-01

    TRW’s Ada Process Model has proven to be key to the Command Center Processing and Display System-Replacement (CCPDS-R) project’s success to data in...developing over 3000,000 lines of Ada source code executing in a distributed VAX VMS environment. The Ada Process Model is, in simplest terms, a...software progress metrics. This paper provides an overview of the techniques and benefits of the Ada Process Model and describes some of the experience and

  18. O tempo na terceira Enéada de Plotino

    Directory of Open Access Journals (Sweden)

    Daniel Schiochett

    2009-06-01

    Full Text Available Plotino é conhecido pela doutrina das três hipóstases: o Uno, a Inteligência e a Alma. Enquanto neoplatônico, sua doutrina é pensada a partir da visão platônica do mundo. Todavia, na terceira Enéada o filósofo se põe a discutir longamente a concepção antiga do tempo, fortemente devedora da doutrina aristotélica. Plotino, ao seu modo, consegue reinterpretar e adequar a noção aristotélica do tempo à concepção de mundo platônica. O tempo, para Plotino, por um lado, permanece referido ao movimento, concordando com Aristóteles, e por outro, é imagem de uma outra forma mais perfeira, a eternidade, concordando com a divisão do mundo em sensivel e supra-sensível de Platão. Por conseguir compreender o tempo a partir desses dois registros, o platônico e o aristotélico, Plotino figura como um ponto importante para se compreender as teorias do tempo que vieram depois dele, principalmente a de Santo Agostinho. Nosso ensaio pretende discutir a noção de tempo em Plotino, a partir da terceira Enéada, a fim de fornecer instrumentos para tal compreensão.

  19. Hyperbilirubinemia and rapid fatal hepatic failure in severe combined immunodeficiency caused by adenosine deaminase deficiency (ADA-SCID).

    Science.gov (United States)

    Kühl, J S; Schwarz, K; Münch, A; Schmugge, M; Pekrun, A; Meisel, C; Wahn, V; Ebell, W; von Bernuth, H

    2011-03-01

    Adenosin deaminase (ADA) deficiency is the cause for Severe Combined Immunodeficiency (SCID) in about 15% of patients with SCID, often presenting as T (-)B (-)NK (-)SCID. Treatment options for ADA-SCID are enzyme replacement, bone marrow transplantation or gene therapy. We here describe the first patient with ADA-SCID and fatal hepatic failure despite bone marrow transplantation from a 10/10 HLA identical related donor. As patients with ADA-SCID may be at yet underestimated increased risk for rapid hepatic failure we speculate whether hepatitis in ADA-SCID should lead to the immediate treatment with enzyme replacement by pegylated ADA.

  20. Carrier frequency of a nonsense mutation in the adenosine deaminase (ADA) gene implies a high incidence of ADA-deficient severe combined immunodeficiency (SCID) in Somalia and a single, common haplotype indicates common ancestry.

    Science.gov (United States)

    Sanchez, Juan J; Monaghan, Gemma; Børsting, Claus; Norbury, Gail; Morling, Niels; Gaspar, H Bobby

    2007-05-01

    Inherited adenosine deaminase (ADA) deficiency is a rare metabolic disorder that causes immunodeficiency, varying from severe combined immunodeficiency (SCID) in the majority of cases to a less severe form in a small minority of patients. Five patients of Somali origin from four unrelated families, with severe ADA-SCID, were registered in the Greater London area. Patients and their parents were investigated for the nonsense mutation Q3X (ADA c7C>T), two missense mutations K80R (ADA c239A>G) and R142Q (ADA c425G>A), and a TAAA repeat located at the 3' end of an Alu element (AluVpA) positioned 1.1 kb upstream of the ADA transcription start site. All patients were homozygous for the haplotype ADA-7T/ADA-239G/ADA-425G/AluVpA7. Among 207 Somali immigrants to Denmark, the frequency of ADA c7C>T and the maximum likelihood estimate of the frequency of the haplotype ADA-7T/ADA-239G/ADA-425G/AluVpA7 were both 0.012 (carrier frequency 2.4%). Based on the analysis of AluVpA alleles, the ADA c7C/T mutation was estimated to be approximately 7,100 years old. Approximately 1 out of 5 - 10000 Somali children will be born with ADA deficiency due to an ADA c7C/T mutation, although within certain clans the frequency may be significantly higher. ADA-SCID may be a frequent immunodeficiency disorder in Somalia, but will be underdiagnosed due to the prevailing socioeconomic and nutritional deprivation.

  1. Towards a rAAV-based gene therapy for ADA-SCID: from ADA deficiency to current and future treatment strategies.

    Science.gov (United States)

    Silver, Jared N; Flotte, Terence R

    2008-07-01

    Adenosine deaminase deficiency fosters a rare, devastating pediatric immune deficiency with concomitant opportunistic infections, metabolic anomalies and multiple organ system pathology. The standard of care for adenosine deaminase deficient severe combined immune deficiency (ADA-SCID) includes enzyme replacement therapy or bone marrow transplantation. Gene therapies for ADA-SCID over nearly two decades have exclusively involved retroviral vectors targeted to lymphocytes and hematopoetic progenitors. These groundbreaking gene therapies represent a revolution in clinical medicine, but come with several challenges, including the risk of insertional mutagenesis. An alternative gene therapy for ADA-SCID may utilize recombinant adeno-associated virus vectors in vivo, with numerous target tissues, to foster ectopic expression and secretion of adenosine deaminase. This review endeavors to describe ADA-SCID, the traditional treatments, previous retroviral gene therapies, and primarily, alternative recombinant adeno-associated virus-based strategies to remedy this potentially fatal genetic disease.

  2. Ada Compiler Validation Summary Report: Siemens AG Siemens BS2000 Ada Compiler, Version 1.0 Siemens 7.57OP.

    Science.gov (United States)

    1987-02-26

    STD-]815A, FEB 1983. 2. Ada Validation Organization: Policies and Procedures, MITRE Corporation , JUN 1982, PB 83-110601. 3. Ada Compiler Validation...expression’s suhtyne is comnatible with the target’s sub- type. In assigning two-dimensional array types, the expression does not appear to be evaluated...owner’s corporate name. Siemens Aktiengesellschaft -- 7 ,Spa . ’. ’.,,,, .- ’.% ’ " ’ ,-.-,ŗ’/ ,’,’ ’ ’,,- ’ % 3

  3. 基于AdaCostBoost算法的网络钓鱼检测%Phishing Detection System Based on AdaCostBoost Algorithm

    Institute of Scientific and Technical Information of China (English)

    曾传璜; 李思强; 张小红

    2015-01-01

    针对日益严重的网络钓鱼攻击,提出机器学习的方法进行钓鱼网站的检测和判断。首先,根据URL提取敏感特征,然后,采用AdaBoost算法进行训练出分类器,再用训练好的分类器对未知URL检测识别。最后,针对非平衡代价问题,采用了改进后的 AdaBoost 算法--AdaCostBoost,加入代价因子的计算。实验结果表明,文中提出的网络钓鱼检测方法,具有较优的检测性能。%For increasing serious phishing attacks, machine-learning method is proposed to detect phishing webs. Firstly, sensitive features are extracted from the URL, then, using AdaBoost algorithm to get the trained classifier, and then the classifier is used to detect unknown URLs. Finally, considering of non-equilibrium problems of AdaBoost, the paper puts forward the improved learning algorithm called AdaCostBoost, which contains computation of cost factors. According to the experiment result, the proposed phishing detection method has better detection performance.

  4. Cartalk 2000: development of a co-operative ADAS based on vehicle-to-vehicle communication

    NARCIS (Netherlands)

    Morsink, P.L.J.; Hallouzi, R.; Dagli, I.; Cseh, C.; Schäfers, L.; Nelisse, M.W.; Bruin, D. de

    2003-01-01

    Advanced Driver Assistance Systems (ADAS) benefit from using vehicle-to-vehicle communication. In the 5th framework EC project CarTALK2000 co-operative ADAS are designed, tested and evaluated with respect to increasing traffic safety, efficiency and driving comfort. Communication based longitudinal

  5. School Issues Under [Section] 504 and the ADA: The Latest and Greatest.

    Science.gov (United States)

    Aleman, Steven R.

    This paper highlights recent guidance and rulings from the Office of Civil Rights (OCR) of interest to administrators, advocates, and attorneys. It is a companion piece to Student Issues on SectionNB504/ADA: The Latest and Greatest. Compliance with SectionNB504 and the Americans with Disabilities Act (ADA) continues to involve debate and dialog on…

  6. NRPA Law Review. Combat Karate Class Illustrates ADA "Direct Threat" Exception.

    Science.gov (United States)

    Kozlowski, James C.

    2000-01-01

    Describes the Americans with Disabilities Act (ADA), which prohibits discrimination against people with disabilities, highlighting a lawsuit involving a boy with AIDS who was barred from a traditional combat-oriented martial arts school. Courts ruled that his exclusion did not violate the ADA because he posed significant health and safety risks to…

  7. The "Ada" Verb of Being in Bahasa Malaysia. Colorado Research in Linguistics, No. 4.

    Science.gov (United States)

    Mader, Robin

    This paper examines the various syntactic and semantic functions of the "ada" verb of "being" in Malay. The claim is made that there is an abstract uppermost "ada" in the underlying structure of Malay sentences that asserts or denies the truth of the surface main clause. A further claim is made that the…

  8. The G22A Polymorphism of the ADA Gene and Susceptibility to Autism Spectrum Disorders

    Science.gov (United States)

    Hettinger, Joe A.; Liu, Xudong; Holden, Jeanette Jeltje Anne

    2008-01-01

    Inborn errors of purine metabolism have been implicated as a cause for some cases of autism. This hypothesis is supported by the finding of decreased adenosine deaminase (ADA) activity in the sera of some children with autism and reports of an association of the A allele of the ADA G22A (Asp8Asn) polymorphism in individuals with autism of…

  9. Clinical utility of interferon-γ compared to ADA in tuberculous pleural effusion

    Directory of Open Access Journals (Sweden)

    Nariman A. Helmy

    2012-10-01

    Result: Our results demonstrate that the pleural fluid concentrations of ADA, INF-γ in patients with tuberculous pleural effusions are significantly higher than in other effusions. Most importantly, ROC analysis clearly demonstrated ADA to be more sensitive and specific than INF-γ for diagnosis of tuberculous pleuritis.

  10. O tempo na terceira Enéada de Plotino

    OpenAIRE

    Daniel Schiochett

    2009-01-01

    Plotino é conhecido pela doutrina das três hipóstases: o Uno, a Inteligência e a Alma. Enquanto neoplatônico, sua doutrina é pensada a partir da visão platônica do mundo. Todavia, na terceira Enéada o filósofo se põe a discutir longamente a concepção antiga do tempo, fortemente devedora da doutrina aristotélica. Plotino, ao seu modo, consegue reinterpretar e adequar a noção aristotélica do tempo à concepção de mundo platônica. O tempo, para Plotino, por um lado, permanece referido ao moviment...

  11. Storage management in Ada. Three reports. Volume 1: Storage management in Ada as a risk to the development of reliable software. Volume 2: Relevant aspects of language. Volume 3: Requirements of the language versus manifestations of current implementations

    Science.gov (United States)

    Auty, David

    1988-01-01

    The risk to the development of program reliability is derived from the use of a new language and from the potential use of new storage management techniques. With Ada and associated support software, there is a lack of established guidelines and procedures, drawn from experience and common usage, which assume reliable behavior. The risk is identified and clarified. In order to provide a framework for future consideration of dynamic storage management on Ada, a description of the relevant aspects of the language is presented in two sections: Program data sources, and declaration and allocation in Ada. Storage-management characteristics of the Ada language and storage-management characteristics of Ada implementations are differentiated. Terms that are used are defined in a narrow and precise sense. The storage-management implications of the Ada language are described. The storage-management options available to the Ada implementor and the implications of the implementor's choice for the Ada programmer are also described.

  12. Regulatory Anatomy

    DEFF Research Database (Denmark)

    Hoeyer, Klaus

    2015-01-01

    This article proposes the term “safety logics” to understand attempts within the European Union (EU) to harmonize member state legislation to ensure a safe and stable supply of human biological material for transplants and transfusions. With safety logics, I refer to assemblages of discourses, le...... they arise. In short, I expose the regulatory anatomy of the policy landscape....

  13. The implementation and use of Ada on distributed systems with reliability requirements

    Science.gov (United States)

    Reynolds, P. F.; Knight, J. C.; Urquhart, J. I. A.

    1983-01-01

    The issues involved in the use of the programming language Ada on distributed systems are discussed. The effects of Ada programs on hardware failures such as loss of a processor are emphasized. It is shown that many Ada language elements are not well suited to this environment. Processor failure can easily lead to difficulties on those processors which remain. As an example, the calling task in a rendezvous may be suspended forever if the processor executing the serving task fails. A mechanism for detecting failure is proposed and changes to the Ada run time support system are suggested which avoid most of the difficulties. Ada program structures are defined which allow programs to reconfigure and continue to provide service following processor failure.

  14. Carrier frequency of a nonsense mutation in the adenosine deaminase (ADA) gene implies a high incidence of ADA-deficient severe combined immunodeficiency (SCID) in Somalia and a single, common haplotype indicates common ancestry

    DEFF Research Database (Denmark)

    Sanchez Sanchez, Juan Jose; Monaghan, Gemma; Børsting, Claus

    2007-01-01

    , with severe ADA-SCID, were registered in the Greater London area. Patients and their parents were investigated for the nonsense mutation Q3X (ADA c7C>T), two missense mutations K80R (ADA c239A>G) and R142Q (ADA c425G>A), and a TAAA repeat located at the 3' end of an Alu element (AluVpA) positioned 1.1 kb...

  15. Digital data sets that describe aquifer characteristics of the Vamoosa-Ada aquifer in east-central Oklahoma

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set consists of digitized polygons of constant recharge values for the Vamoosa-Ada aquifer, in east-central Oklahoma. The Vamoosa-Ada aquifer is an...

  16. Digital data sets that describe aquifer characteristics of the Vamoosa-Ada aquifer in east-central Oklahoma

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set consists of digitized water-level elevation contours for the Vamoosa-Ada aquifer in east-central Oklahoma. The Vamoosa-Ada aquifer is an important...

  17. Digital data sets that describe aquifer characteristics of the Vamoosa-Ada aquifer in east-central Oklahoma

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set consists of digitized polygons of constant hydraulic conductivity values for the Vamoosa-Ada aquifer in east-central Oklahoma. The Vamoosa-Ada aquifer...

  18. Digital data sets that describe aquifer characteristics of the Vamoosa-Ada aquifer in east-central Oklahoma

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set consists of digitized aquifer boundaries for the Vamoosa-Ada aquifer in east-central Oklahoma. The Vamoosa-Ada aquifer is an important source of water...

  19. EL LOCUS DE DISTRIBUCION COMO COROLARIO DEL LOCUS DE CONTROL

    Directory of Open Access Journals (Sweden)

    Luisa Mayoral

    2009-01-01

    Full Text Available Este es un artículo científico acerca del Locus de Distribución, surgido de un estudio realizado con una población de docentes y alumnos universitarios. Respecto de los primeros, se ha indagado acerca de las atribuciones que se realizaban en torno a las recompensas y sanciones, que ellos distribuían a sus alumnos. Respecto de los segundos, se ha buscado determinar la valoración que estos realizaban de sus profesores, en términos de aquellas atribuciones. Para ello, se utilizaron dos paradigmas clásicamente empleados para verificar la existencia de una norma: el paradigma de la autopresentación (docentes, y el paradigma de los juicios (alumnos. La cuestión planteada fue determinar si en el caso de los comportamientos distributivos de refuerzos, las causas se atribuían a variables externas -en particular a los receptores de esos refuerzos- y si esas formas de atribución eran conocidas y valoradas o no, por los alumnos. De los resultados, surgió la confirmación de nuestra hipótesis de explicaciones externas en materia de comportamientos distributivos de sanciones en el ámbito de la docencia y la valoración positiva de estas atribuciones por los alumnos.

  20. Combined expression trait correlations and expression quantitative trait locus mapping.

    Directory of Open Access Journals (Sweden)

    Hong Lan

    2006-01-01

    Full Text Available Coordinated regulation of gene expression levels across a series of experimental conditions provides valuable information about the functions of correlated transcripts. The consideration of gene expression correlation over a time or tissue dimension has proved valuable in predicting gene function. Here, we consider correlations over a genetic dimension. In addition to identifying coregulated genes, the genetic dimension also supplies us with information about the genomic locations of putative regulatory loci. We calculated correlations among approximately 45,000 expression traits derived from 60 individuals in an F2 sample segregating for obesity and diabetes. By combining the correlation results with linkage mapping information, we were able to identify regulatory networks, make functional predictions for uncharacterized genes, and characterize novel members of known pathways. We found evidence of coordinate regulation of 174 G protein-coupled receptor protein signaling pathway expression traits. Of the 174 traits, 50 had their major LOD peak within 10 cM of a locus on Chromosome 2, and 81 others had a secondary peak in this region. We also characterized a Riken cDNA clone that showed strong correlation with stearoyl-CoA desaturase 1 expression. Experimental validation confirmed that this clone is involved in the regulation of lipid metabolism. We conclude that trait correlation combined with linkage mapping can reveal regulatory networks that would otherwise be missed if we studied only mRNA traits with statistically significant linkages in this small cross. The combined analysis is more sensitive compared with linkage mapping alone.

  1. 腺苷脱氨酶(ADA)微量测定法的研究%Reseach on ADA Microtiter Method

    Institute of Scientific and Technical Information of China (English)

    侯超; 王新宁

    2003-01-01

    目的:设计一种用于检测腺苷脱氨酶微量(ADA)的微量检测方法.方法:通过对实验方法的改进,利用酶标仪进行比色.结果:将微量法所得结果(大于50 U/L的标本需稀释后重新测定)与常规的比色法进行配对比较下,两方法无显著性差异,t=1.51,0.10<P<0.20.结论:在常规工作中可用微量法替代氨试剂比色法,若遇到大于50U/L的标本,稀释后再进行测定.

  2. Translocations affecting human immunoglobulin heavy chain locus

    Directory of Open Access Journals (Sweden)

    Sklyar I. V.

    2014-03-01

    Full Text Available Translocations involving human immunoglobulin heavy chain (IGH locus are implicated in different leukaemias and lymphomas, including multiple myeloma, mantle cell lymphoma, Burkitt’s lymphoma and diffuse large B cell lymphoma. We have analysed published data and identified eleven breakpoint cluster regions (bcr related to these cancers within the IgH locus. These ~1 kbp bcrs are specific for one or several types of blood cancer. Our findings could help devise PCR-based assays to detect cancer-related translocations, to identify the mechanisms of translocations and to help in the research of potential translocation partners of the immunoglobulin locus at different stages of B-cell differentiation.

  3. A comprehensive analysis of the chorion locus in silkmoth.

    Science.gov (United States)

    Chen, Zhiwei; Nohata, Junko; Guo, Huizhen; Li, Shenglong; Liu, Jianqiu; Guo, Youbing; Yamamoto, Kimiko; Kadono-Okuda, Keiko; Liu, Chun; Arunkumar, Kallare P; Nagaraju, Javaregowda; Zhang, Yan; Liu, Shiping; Labropoulou, Vassiliki; Swevers, Luc; Tsitoura, Panagiota; Iatrou, Kostas; Gopinathan, Karumathil P; Goldsmith, Marian R; Xia, Qingyou; Mita, Kazuei

    2015-11-10

    Despite more than 40 years of intense study, essential features of the silkmoth chorion (eggshell) are still not fully understood. To determine the precise structure of the chorion locus, we performed extensive EST analysis, constructed a bacterial artificial chromosome (BAC) contig, and obtained a continuous genomic sequence of 871,711 base pairs. We annotated 127 chorion genes in two segments interrupted by a 164 kb region with 5 non-chorion genes, orthologs of which were on chorion bearing scaffolds in 4 ditrysian families. Detailed transcriptome analysis revealed expression throughout choriogenesis of most chorion genes originally categorized as "middle", and evidence for diverse regulatory mechanisms including cis-elements, alternative splicing and promoter utilization, and antisense RNA. Phylogenetic analysis revealed multigene family associations and faster evolution of early chorion genes and transcriptionally active pseudogenes. Proteomics analysis identified 99 chorion proteins in the eggshell and micropyle localization of 1 early and 6 Hc chorion proteins.

  4. First multi-locus sequence typing scheme for Arcobacter spp.

    Directory of Open Access Journals (Sweden)

    Wang Guilin

    2009-09-01

    Full Text Available Abstract Background Arcobacter spp. are a common contaminant of food and water, and some species, primarily A. butzleri and A. cryaerophilus, have been isolated increasingly from human diarrheal stool samples. Here, we describe the first Arcobacter multilocus sequence typing (MLST method for A. butzleri, A. cryaerophilus, A. skirrowii, A. cibarius and A. thereius. Results A sample set of 374 arcobacters, including 275 A. butzleri, 72 A. cryaerophilus, 15 A. skirrowii and 8 A. cibarius isolates from a wide variety of geographic locations and sources, was typed in this study. Additionally, this sample set contained four strains representing a new Arcobacter species, A. thereius. The seven loci used in the four-species Arcobacter MLST method are the same as those employed previously in C. jejuni, C. coli, C. helveticus and C. fetus (i.e. aspA, atpA(uncA, glnA, gltA, glyA, pgm and tkt. A large number of alleles were identified at each locus with the majority of isolates containing a unique sequence type. All Arcobacter isolates typed in this study contain two glyA genes, one linked to lysS (glyA1 and the other linked to ada (glyA2. glyA1 was incorporated into the Arcobacter MLST method while glyA2 was not because it did not increase substantially the level of discrimination. Conclusion No association of MLST alleles or sequence types with host or geographical source was observed with this sample set. Nevertheless, the large number of identified alleles and sequence types indicate that this MLST method will prove useful in both Arcobacter strain discrimination and in epidemiological studies of sporadic Arcobacter-related gastroenteritis. A new Arcobacter MLST database was created http://pubmlst.org/arcobacter/; allele and ST data generated in this study were deposited in this database and are available online.

  5. 基于改进的AdaBoost人脸检测算法的研究%Research on Face Detection Based on Improved AdaBoost Algorithm

    Institute of Scientific and Technical Information of China (English)

    丁知平

    2013-01-01

    Face detection is a fundamental research theme in the topic of computer vision ,and it has a broad application in many fields such as video surveillance,automatic face recognition,etc. To improve the detection speed of AdaBoost based face detection algorithm, proposes a rapid im-proved AdaBoost based face detection algorithm. Experiments shows that, compared with the current algorithm less features are selected in the inspection, and a high detection correct rate is achieved with the proposed algorithm.%  人脸检测是计算机视觉领域的基础研究,在视频监控、自动人脸识别等领域有着重要应用价值。针对传统的AdaBoost算法用于人脸检测时需要的特征数目多、检测速度慢的问题,提出一种基于改进的AdaBoost人脸检测算法。实验结果表明,相对于传统的AdaBoost人脸检测算法,该算法使用较少的特征即可达到较高的检测准确率,检测速度得到显著提高。

  6. Locus of control and decision to abort.

    Science.gov (United States)

    Dixon, P N; Strano, D A; Willingham, W

    1984-04-01

    The relationship of locus of control to deciding on an abortion was investigated by administering Rotter's Locus of Control Scale to 118 women immediately prior to abortion and 2 weeks and 3 months following abortion. Subjects' scores were compared across the 3 time periods, and the abortion group's pretest scores were compared with those of a nonpregnant control, group. As hypothesized, the aborting group scored significantly more internal than the general population but no differences in locus of control were found across the 3 time period. The length of delay in deciding to abort an unwanted pregnancy following confirmation was also assessed. Women seeking 1st trimester abortions were divided into internal and external groups on the Rotter Scale and the lengths of delay were compared. The hypothesis that external scores would delay the decision longer than internal ones was confirmed. The results confirm characteristics of the locus of control construct and add information about personality characteristics of women undergoing abortion.

  7. Ada compiler evaluation on the Space Station Freedom Software Support Environment project

    Science.gov (United States)

    Badal, D. L.

    1989-01-01

    This paper describes the work in progress to select the Ada compilers for the Space Station Freedom Program (SSFP) Software Support Environment (SSE) project. The purpose of the SSE Ada compiler evaluation team is to establish the criteria, test suites, and benchmarks to be used for evaluating Ada compilers for the mainframes, workstations, and the realtime target for flight- and ground-based computers. The combined efforts and cooperation of the customer, subcontractors, vendors, academia and SIGAda groups made it possible to acquire the necessary background information, benchmarks, test suites, and criteria used.

  8. Search, Effort, and Locus of Control

    OpenAIRE

    McGee, Andrew; McGee, Peter

    2011-01-01

    We test the hypothesis that locus of control – one's perception of control over events in life – influences search by affecting beliefs about the efficacy of search effort in a laboratory experiment. We find that reservation offers and effort are increasing in the belief that one's efforts influence outcomes when subjects exert effort without knowing how effort influences the generation of offers but are unrelated to locus of control beliefs when subjects are informed about the relationship b...

  9. Culture, gender and locus of control

    DEFF Research Database (Denmark)

    Ottsen, Christina Lundsgaard; Johannessen, Kim Berg; Berntsen, Dorthe

    The current study is a cross-cultural comparison between the Middle East and Scandinavia. Two societies that offer a unique opportunity to examine gender differences in personal goals and how goals are affected by locus of control.......The current study is a cross-cultural comparison between the Middle East and Scandinavia. Two societies that offer a unique opportunity to examine gender differences in personal goals and how goals are affected by locus of control....

  10. 四元数小波和AdaBoost在人脸识别中的应用%Application of quaternion wavelet and AdaBoost in face recognition

    Institute of Scientific and Technical Information of China (English)

    徐永红; 申鸿魁; 赵艳茹; 洪文学

    2011-01-01

    提出一种基于四元数小波变换(QWT)幅值相位表示及AdaBoost的人脸识别方法.四元数小波变换具有近似的移不变特性,可以同时支持1个幅值和3个相位,其中两个相位编码局部图像移动,而第三个相位蕴含纹理信息.方法对人脸图像进行预处理,进行四元数小波变换并计算四元数幅值和相位特征,将这些幅值和相位组合并应用AdaBoost分类器进行分类,以实现人脸图像的最终识别.对Yale、ORL和FERET三个人脸数据库应用此方法的实验结果表明,该方法在识别率上优于AdaBoost和Gabor+AdaBoost.特别是在FERET数据上精度提高更为明显,而且在计算复杂度上QWT特征提取明显低于Gabor特征提取.%This paper proposes a face recognition method based on the Quaternion Wavelet Transform (QWT) magnitude/ phase representation and AdaBoost.This recent transform is a near shift-invariant tight frame representation whose coefficients support a magnitude and three phases.The first two QWT phases encode the shifts of image features in the absolute horizon tal/vertical coordinate system, while the third phase encodes edge orientation mixtures and textural information.The method preprocesses human face images, uses QWT to extract the wavelet coefficients of muIti-orientation, and quaternion amplitude and three phases are computed.These quaternion amplitude and phase features are combined and AdaBoost is used to realize recognition.Experimental resuIts on three face databases including Yale, ORL and FERET show that the method has higher recognition rates than AdaBoost and Gabor+AdaBoost.This method has much better recognizing resuIt on FERET especially. Compared with Gabor wavelet features,QWT features are superior both in accuracy and computation complexity.

  11. The implementation and use of Ada on distributed systems with high reliability requirements

    Science.gov (United States)

    Knight, J. C.

    1987-01-01

    Performance analysis was begin on the Ada implementations. The goal is to supply the system designer with tools that will allow a rational decision to be made about whether a particular implementation can support a given application early in the design cycle. Primary activities were: analysis of the original approach to recovery in distributed Ada programs using the Advanced Transport Operating System (ATOPS) example; review and assessment of the original approach which was found to be capable of improvement; preparation and presentation of a paper at the 1987 Washington DC Ada Symposium; development of a refined approach to recovery that is presently being applied to the ATOPS example; and design and development of a performance assessment scheme for Ada programs based on a flexible user-driven benchmarking system.

  12. System testing of a production Ada (trademark) project: The GRODY study

    Science.gov (United States)

    Seigle, Jeffrey; Esker, Linda; Shi, Ying-Liang

    1990-01-01

    The use of the Ada language and design methodologies that utilize its features has a strong impact on all phases of the software development project lifecycle. At the National Aeronautics and Space Administration/Goddard Space Flight Center (NASA/GSFC), the Software Engineering Laboratory (SEL) conducted an experiment in parallel development of two flight dynamics systems in FORTRAN and Ada. The teams found some qualitative differences between the system test phases of the two projects. Although planning for system testing and conducting of tests were not generally affected by the use of Ada, the solving of problems found in system testing was generally facilitated by Ada constructs and design methodology. Most problems found in system testing were not due to difficulty with the language or methodology but to lack of experience with the application.

  13. Particular application of methods of AdaBoost and LBP to the problems of computer vision

    OpenAIRE

    Волошин, Микола Володимирович

    2012-01-01

    The application of AdaBoost method and local binary pattern (LBP) method for different spheres of computer vision implementation, such as personality identification and computer iridology, is considered in the article. The goal of the research is to develop error-correcting methods and systems for implements of computer vision and computer iridology, in particular. This article considers the problem of colour spaces, which are used as a filter and as a pre-processing of images. Method of AdaB...

  14. A study of the portability of an Ada system in the software engineering laboratory (SEL)

    Science.gov (United States)

    Jun, Linda O.; Valett, Susan Ray

    1990-01-01

    A particular porting effort is discussed, and various statistics on analyzing the portability of Ada and the total staff months (overall and by phase) required to accomplish the rehost, are given. This effort is compared to past experiments on the rehosting of FORTRAN systems. The discussion includes an analysis of the types of errors encountered during the rehosting, the changes required to rehost the system, experiences with the Alsys IBM Ada compiler, the impediments encountered, and the lessons learned during this study.

  15. A-D-A small molecules for solution-processed organic photovoltaic cells.

    Science.gov (United States)

    Ni, Wang; Wan, Xiangjian; Li, Miaomiao; Wang, Yunchuang; Chen, Yongsheng

    2015-03-25

    A-D-A small molecules have drawn more and more attention in solution-processed organic solar cells due to the advantages of a diversity of structures, easy control of energy levels, etc. Recently, a power conversion efficiency of nearly 10% has been achieved through careful material design and device optimization. This feature article reviews recent representative progress in the design and application of A-D-A small molecules in organic photovoltaic cells.

  16. Confidence-based multiclass AdaBoost for physical activity monitoring

    OpenAIRE

    Reiss, Attila; Hendeby, Gustaf; Stricker, Didier

    2013-01-01

    Physical activity monitoring has recently become an important topic in wearable computing, motivated by e.g. healthcare applications. However, new benchmark results show that the difficulty of the complex classification problems exceeds the potential of existing classifiers. Therefore, this paper proposes the ConfAdaBoost.M1 algorithm. The proposed algorithm is a variant of the AdaBoost.M1 that incorporates well established ideas for confidence based boosting. The method is compared to the mo...

  17. Combinatorial depletion analysis to assemble the network architecture of the SAGA and ADA chromatin remodeling complexes.

    Science.gov (United States)

    Lee, Kenneth K; Sardiu, Mihaela E; Swanson, Selene K; Gilmore, Joshua M; Torok, Michael; Grant, Patrick A; Florens, Laurence; Workman, Jerry L; Washburn, Michael P

    2011-07-05

    Despite the availability of several large-scale proteomics studies aiming to identify protein interactions on a global scale, little is known about how proteins interact and are organized within macromolecular complexes. Here, we describe a technique that consists of a combination of biochemistry approaches, quantitative proteomics and computational methods using wild-type and deletion strains to investigate the organization of proteins within macromolecular protein complexes. We applied this technique to determine the organization of two well-studied complexes, Spt-Ada-Gcn5 histone acetyltransferase (SAGA) and ADA, for which no comprehensive high-resolution structures exist. This approach revealed that SAGA/ADA is composed of five distinct functional modules, which can persist separately. Furthermore, we identified a novel subunit of the ADA complex, termed Ahc2, and characterized Sgf29 as an ADA family protein present in all Gcn5 histone acetyltransferase complexes. Finally, we propose a model for the architecture of the SAGA and ADA complexes, which predicts novel functional associations within the SAGA complex and provides mechanistic insights into phenotypical observations in SAGA mutants.

  18. Constructing a working taxonomy of functional Ada software components for real-time embedded system applications

    Science.gov (United States)

    Wallace, Robert

    1986-01-01

    A major impediment to a systematic attack on Ada software reusability is the lack of an effective taxonomy for software component functions. The scope of all possible applications of Ada software is considered too great to allow the practical development of a working taxonomy. Instead, for the purposes herein, the scope of Ada software application is limited to device and subsystem control in real-time embedded systems. A functional approach is taken in constructing the taxonomy tree for identified Ada domain. The use of modular software functions as a starting point fits well with the object oriented programming philosophy of Ada. Examples of the types of functions represented within the working taxonomy are real time kernels, interrupt service routines, synchronization and message passing, data conversion, digital filtering and signal conditioning, and device control. The constructed taxonomy is proposed as a framework from which a need analysis can be performed to reveal voids in current Ada real-time embedded programming efforts for Space Station.

  19. Genome-wide analysis of the regulatory function mediated by the small regulatory psm-mec RNA of methicillin-resistant Staphylococcus aureus.

    Science.gov (United States)

    Cheung, Gordon Y C; Villaruz, Amer E; Joo, Hwang-Soo; Duong, Anthony C; Yeh, Anthony J; Nguyen, Thuan H; Sturdevant, Daniel E; Queck, S Y; Otto, M

    2014-07-01

    Several methicillin resistance (SCCmec) clusters characteristic of hospital-associated methicillin-resistant Staphylococcus aureus (MRSA) strains harbor the psm-mec locus. In addition to encoding the cytolysin, phenol-soluble modulin (PSM)-mec, this locus has been attributed gene regulatory functions. Here we employed genome-wide transcriptional profiling to define the regulatory function of the psm-mec locus. The immune evasion factor protein A emerged as the primary conserved and strongly regulated target of psm-mec, an effect we show is mediated by the psm-mec RNA. Furthermore, the psm-mec locus exerted regulatory effects that were more moderate in extent. For example, expression of PSM-mec limited expression of mecA, thereby decreasing methicillin resistance. Our study shows that the psm-mec locus has a rare dual regulatory RNA and encoded cytolysin function. Furthermore, our findings reveal a specific mechanism underscoring the recently emerging concept that S. aureus strains balance pronounced virulence and high expression of antibiotic resistance.

  20. Locus heterogeneity in autosomal dominant spinocerebellar ataxia: Evidence for the existence of a fifth locus

    Energy Technology Data Exchange (ETDEWEB)

    Sarrazin, J.; Rouleau, G.A. [Montreal General Hospital, Quebec (Canada); Andermann, E. [Montreal Neurological Institute and Hospital, Quebec (Canada)] [and others

    1994-09-01

    The autosomal dominantly inherited spinocerebellar ataxias (SCAs) are a heterogeneous group of neurodegenerative disorders. To date, four loci have been identified: the SCA-1 locus (on chromosome (chr) 6p), the SCA-2 locus (on chr 12q), the SCA-3/MJD locus (on chr 14q), and more recently an SCA-4 locus was described (chr 16q) in a Utah kindred. We have studied one large French Canadian kindred with four generations of living affected individuals segregating an autosomal dominant form of SCA. Linkage analysis using anonymous DNA markers which flank the four previously described loci significantly excludes the French Canadian kindred from the SCA-1, SCA-2, SCA-3/MJD and SCA-4 loci. Therefore a fifth, still unmapped, SCA locus remains to be identified.

  1. An efficient method to successively introduce transgenes into a given genomic locus in the mouse

    Directory of Open Access Journals (Sweden)

    Weiler Hartmut

    2001-06-01

    Full Text Available Abstract Background Expression of transgenes in mice requires transcriptional regulatory elements that direct expression in a chosen cell type. Unfortunately, the availability of well-characterized promoters that direct bona-fide expression of transgenes in transgenic mice is limited. Here we described a method that allows highly efficient targeting of transgenes to a preselected locus in ES cells. Results A pgk-LoxP-Neo cassette was introduced into a desired genomic locus by homologous recombination in ES cells. The pgk promoter was then removed from the targeted ES cells by Cre recombinase thereby restoring the ES cells' sensitivity to G418. We demonstrated that transgenes could be efficiently introduced into this genomic locus by reconstituting a functional Neo gene. Conclusion This approach is simple and extremely efficient in facilitating the introduction of single-copy transgenes into defined genomic loci. The availability of such an approach greatly enhances the ease of using endogenous regulatory elements to control transgene expression and, in turn, expands the repertoire of elements available for transgene expression.

  2. The murine Th2 locus undergoes epigenetic modification in the thymus during fetal and postnatal ontogeny.

    Directory of Open Access Journals (Sweden)

    Momoko Yoshimoto

    Full Text Available Epigenetic modifications play a central role in the differentiation and function of immune cells in adult animals. Developmentally regulated epigenetic patterns also appear to contribute to the ontogeny of the immune system. We show here that the epigenetic profile of the T-helper (Th 2 locus undergoes changes in T lineage cells beginning in mid-gestation and extending throughout the first week of life. In particular, regulatory regions of the Th2 locus are largely methylated at CpG residues among fetal liver common lymphoid progenitor cells. The locus subsequently becomes highly hypomethylated among the downstream progeny of these cells within the fetal thymus. This hypomethylated state is preserved until birth when the locus becomes rapidly re-methylated, achieving adult-like status by 3-6 days post birth. Notably, the capacity for rapid, high level Th2 cytokine production is lost in parallel with this re-methylation. In vitro organ culture and in vivo transplantation experiments indicate that signals from the adult environment are required to achieve the postnatal methylated state. Together, these findings indicate that the Th2 bias of neonates may be conferred, in part, by an epigenetic profile inherited from fetal life. However, the fetal program is rapidly terminated post birth by the development of signals leading to the acquisition of adult-like epigenetic patterns.

  3. Ada Compiler Validation Summary Report. Certificate Number: 891019W1. 10178, Hewlett Packard Company HP 9000 Series 800 Ada Compiler, Version 4.35 HP 9000 Series 800 Model 850. Completion of On-Site Testing: 19 October 1989

    Science.gov (United States)

    1989-10-19

    1985, the Commerce Department issued Part’ 379 Technical Data of the Export Administration specifically listing Ada Programming Support Environments...maintaining a uniform process for validation of Ada compilers. The AVO provides administrative and technical support for Ada validations to ensure...unused trailing bytes will not be appended. The principie use for the RECORD UNIT parameter is in reading and writing external files that are in

  4. Ada Compiler Validation Summary Report: Certificate Number: 910918S1.11217, NEC Corporation, NEC Ada Compiler System for EWS-UX/V to V70/RX-UX832, Version 1.0 EWS 4800/60 = MV4000

    Science.gov (United States)

    1991-01-01

    8217 The Ada~ System generator 30 I OPTIONS AND COMMANDS OF THE PLU 1 Options and Commands of The PLU The Program Library Utility (PLU) of NEC Ada...myprogram 4 OPTIONS FOR THE ADA SYSTEM GENERATOR 30 The linker will include the code in Obj ectFile. o in the linkage of the program "myprogram". This...program presumably features a program interface to some routines appearing in the ObjectFile. 4 Options for The Ada System generator asgv70 is a

  5. CLONING AND CHARACTERIZATION OF A METAL RESPONSIVE ELEMENT-CONTAINING FRAGMENT FROM THE WILSON DISEASE GENE LOCUS BY JUNCTION TRAPPING

    Institute of Scientific and Technical Information of China (English)

    谢久永; 刘国仰; 王梅; 黄尚志; 罗会元

    1998-01-01

    All mammalian metallothionaln genes studied to dare have several metal responsive elements (MRE) with consensus sequences of TGCRCNC (R, purlne) in their regulatory region. MRE-11ke sequeaees were also found in many other metal-related genes. To see whether there is also such a sequence at the genetic locus (13q14. 3) d Wilstm disease, which is a genetic disorder d copper metabolisa''n, junction-trapping method baaed on the MRE sequence was used. A fragment containing MRE and MRE-like sequences from YAC 27D8 at the WND locus was successfully cloned and mapped back to the YAC by PC, R, Presence of such a sequence in the copper transporter gene at the W''D locus might imply that it has a possible interesting role in the regulation of WD gene expression.

  6. Cell surface and transcriptional characterization of human adipose-derived adherent stromal (hADAS) cells.

    Science.gov (United States)

    Katz, Adam J; Tholpady, Ashok; Tholpady, Sunil S; Shang, Hulan; Ogle, Roy C

    2005-03-01

    Adult human subcutaneous adipose tissue contains cells with intriguing multilineage developmental plasticity, much like marrow-derived mesenchymal stem cells. Putative stem or progenitor cells from fat have been given many different names in the literature, reflecting an early and evolving consensus regarding their phenotypic characterization. The study reported here used microarrays to evaluate over 170 genes relating to angiogenesis and extracellular matrix in undifferentiated, early-passage human adipose-derived adherent stromal (hADAS) cells isolated from three separate donors. The hADAS populations unanimously transcribed 66% of the screened genes, and 83% were transcribed by at least two of the three populations. The most highly transcribed genes relate to functional groupings such as cell adhesion, matrix proteins, growth factors and receptors, and proteases. The transcriptome of hADAS cells demonstrated by this work reveals many similarities to published profiles of bone marrow mesenchymal stem cells (MSCs). In addition, flow analysis of over 24 hADAS cell surface proteins (n = 7 donors) both confirms and expands on the existing literature and reveals strong intergroup correlation, despite an inconsistent nomenclature and the lack of standardized protocols for cell isolation and culture. Finally, based on flow analysis and reverse transcription polymerase chain reaction studies, our results suggest that hADAS cells do not express several proteins that are implicated as markers of "stemness" in other stem cell populations, including telomerase, CD133, and the membrane transporter ABCG2.

  7. The inclusion of ADA-SCID in expanded newborn screening by tandem mass spectrometry.

    Science.gov (United States)

    la Marca, Giancarlo; Giocaliere, Elisa; Malvagia, Sabrina; Funghini, Silvia; Ombrone, Daniela; Della Bona, Maria Luisa; Canessa, Clementina; Lippi, Francesca; Romano, Francesca; Guerrini, Renzo; Resti, Massimo; Azzari, Chiara

    2014-01-01

    Severe combined immunodeficiency due to adenosine-deaminase defect (ADA-SCID) is usually deadly in childhood because of severe recurrent infections. When clinical diagnosis is done, permanent damages due to infections or metabolite accumulation are often present. Gene therapy, bone marrow transplantation or enzyme replacement therapy may be effective if started early. The aim of this study was to set-up a robust method suitable for screening with a minimized preparation process and with inexpensive running costs, for diagnosing ADA-SCID by tandem mass spectrometry. ADA-SCID satisfies all the criteria for inclusion in a newborn screening program. We describe a protocol revised to incorporate adenosine and 2-deoxyadenosine testing into an expanded newborn screening program. We assessed the effectiveness of this approach testing dried blood spots from 4 genetically confirmed early-onset and 5 delayed-onset ADA-SCID patients. Reference values were established on 50,000 healthy newborns (deoxyadenosine <0.09μmol/L, adenosine <1.61μmol/L). We also developed a second tier test to distinguish true positives from false positives and improve the positive predictive value of an initial abnormal result. In the first 18 months, the pilot project has identified a newborn with a genetically confirmed defect in adenosine deaminase (ADA) gene. The results show that the method having great simplicity, low cost and low process preparations can be fully applicable to a mass screening program.

  8. A suppressor locus for MODY3-diabetes

    Science.gov (United States)

    Garcia-Gonzalez, Miguel A.; Carette, Claire; Bagattin, Alessia; Chiral, Magali; Makinistoglu, Munevver Parla; Garbay, Serge; Prévost, Géraldine; Madaras, Cécile; Hérault, Yann; Leibovici, Michel; Pontoglio, Marco

    2016-01-01

    Maturity Onset Diabetes of the Young type 3 (MODY3), linked to mutations in the transcription factor HNF1A, is the most prevalent form of monogenic diabetes mellitus. HNF1alpha-deficiency leads to defective insulin secretion via a molecular mechanism that is still not completely understood. Moreover, in MODY3 patients the severity of insulin secretion can be extremely variable even in the same kindred, indicating that modifier genes may control the onset of the disease. With the use of a mouse model for HNF1alpha-deficiency, we show here that specific genetic backgrounds (C3H and CBA) carry a powerful genetic suppressor of diabetes. A genome scan analysis led to the identification of a major suppressor locus on chromosome 3 (Moda1). Moda1 locus contains 11 genes with non-synonymous SNPs that significantly interacts with other loci on chromosomes 4, 11 and 18. Mechanistically, the absence of HNF1alpha in diabetic-prone (sensitive) strains leads to postnatal defective islets growth that is remarkably restored in resistant strains. Our findings are relevant to human genetics since Moda1 is syntenic with a human locus identified by genome wide association studies of fasting glycemia in patients. Most importantly, our results show that a single genetic locus can completely suppress diabetes in Hnf1a-deficiency. PMID:27667715

  9. Locus of Equity and Brand Extension

    NARCIS (Netherlands)

    S.M.J. van Osselaer (Stijn); J.W. Alba (Joseph)

    2003-01-01

    textabstractPrevailing wisdom assumes that brand equity increases when a brand touts its desirable attributes. We report conditions under which the use of attribute information to promote a product can shift the locus of equity from brand to attribute, thereby reducing the attractiveness of extensio

  10. Pegademase bovine (PEG-ADA for the treatment of infants and children with severe combined immunodeficiency (SCID

    Directory of Open Access Journals (Sweden)

    Claire Booth

    2009-06-01

    Full Text Available Claire Booth1,2, H Bobby Gaspar1,21Centre for Immunodeficiency, Molecular Immunology Unit, UCL Institute of Child Health, London, UK; 2Dept of Clinical Immunology, Great Ormond Street Hospital NHS Trust, London, UKAbstract: Adenosine deaminase deficiency (ADA is a rare, inherited disorder of purine metabolism characterized by immunodeficiency, failure to thrive and metabolic abnormalities. A lack of the enzyme ADA allows accumulation of toxic metabolites causing defects of both cell mediated and humoral immunity leading to ADA severe combined immune deficiency (SCID, a condition that can be fatal in early infancy if left untreated. Hematopoietic stem cell transplant is curative but is dependent on a good donor match. Other therapeutic options include enzyme replacement therapy (ERT with pegademase bovine (PEG-ADA and more recently gene therapy. PEG-ADA has been used in over 150 patients worldwide and has allowed stabilization of patients awaiting more definitive treatment with hematopoietic stem cell transplant. It affords both metabolic detoxification and protective immune function with patients remaining clinically well, but immune reconstitution is often suboptimal and may not be long lived. We discuss the pharmacokinetics, immune reconstitution, effects on systemic disease and side effects of treatment with PEG-ADA. We also review the long-term outcome of patients receiving ERT and discuss the role of PEG-ADA in the management of infants and children with ADA-SCID, alongside other therapeutic options.Keywords: adenosine deaminase deficiency, PEG-ADA, enzyme replacement therapy, severe combined immune deficiency (SCID

  11. Ada Compiler Validation Summary Report: Certificate Number: 920509S1. 11259 Alenia Aeritalia and Selenia S.p.A DACS VAX/VMS to 80x86 PM MARA Ada Cross Compiler, Version 4.6 Microvax 4000/200 => MARA

    Science.gov (United States)

    1992-01-01

    INTERFACE exc. non ADA ------- v codice ADA exception ADA AH A AI .1 I sistema operativo exc. non ADA ------- - fig. 1- Function Exception Handling is...identification of page terminator can be penalized when teletype characterization is used to handle serial communication lines connected to host computers. In

  12. Platelet aggregation and serum adenosine deaminase (ADA) activity in pregnancy associated with diabetes, hypertension and HIV.

    Science.gov (United States)

    Leal, Claudio A M; Leal, Daniela B R; Adefegha, Stephen A; Morsch, Vera M; da Silva, José E P; Rezer, João F P; Schrekker, Clarissa M L; Abdalla, Faida H; Schetinger, Maria R C

    2016-07-01

    Platelet aggregation and adenosine deaminase (ADA) activity were evaluated in pregnant women living with some disease conditions including hypertension, diabetes mellitus and human immunodeficiency virus infection. The subject population is consisted of 15 non-pregnant healthy women [control group (CG)], 15 women with normal pregnancy (NP), 7 women with hypertensive pregnancy (HP), 10 women with gestational diabetes mellitus (GDM) and 12 women with human immunodeficiency virus-infected pregnancy (HIP) groups. The aggregation of platelets was checked using an optical aggregometer, and serum ADA activity was determined using the colorimetric method. After the addition of 5 µM of agonist adenosine diphosphate, the percentage of platelet aggregation was significantly (p pregnancy and pregnancy-associated diseases suggest that platelet aggregation and ADA activity could serve as peripheral markers for the development of effective therapy in the maintenance of homeostasis and some inflammatory process in these pathophysiological conditions. Copyright © 2016 John Wiley & Sons, Ltd.

  13. Association between the Igk and Igh immunoglobulin loci mediated by the 3' Igk enhancer induces 'decontraction' of the Igh locus in pre-B cells.

    Science.gov (United States)

    Hewitt, Susannah L; Farmer, Deborah; Marszalek, Katarzyna; Cadera, Emily; Liang, Hong-Erh; Xu, Yang; Schlissel, Mark S; Skok, Jane A

    2008-04-01

    Variable-(diversity)-joining (V(D)J) recombination at loci encoding the immunoglobulin heavy chain (Igh) and immunoglobulin light chain (Igk) takes place sequentially during successive stages in B cell development. Using three-dimensional DNA fluorescence in situ hybridization, here we identify a lineage-specific and stage-specific interchromosomal association between these two loci that marks the transition between Igh and Igk recombination. Colocalization occurred between pericentromerically located alleles in pre-B cells and was mediated by the 3' Igk enhancer. Deletion of this regulatory element prevented association of the Igh and Igk loci, inhibited pericentromeric recruitment and locus 'decontraction' of an Igh allele, and resulted in greater distal rearrangement of the gene encoding the variable heavy-chain region. Our data indicate involvement of the Igk locus and its 3' enhancer in directing the Igh locus to a repressive nuclear subcompartment and inducing the Igh locus to decontract.

  14. Association between the Igk and Igh loci mediated by the 3’ Igk enhancer induces decontraction of the Igh locus in pre-B cells

    Science.gov (United States)

    Hewitt, Susannah L; Farmer, Deborah; Marszalek, Katarzyna; Cadera, Emily; Liang, Hong-Erh; Xu, Yang; Schlissel, Mark S; Skok, Jane A

    2008-01-01

    V(D)J recombination at Igh and Igk loci takes place sequentially during successive stages in B cell development. Using 3-dimensional DNA fluorescence in situ hybridization (FISH), we identified a lineage- and stage-specific interchromosomal association between these two loci which marks the transition between Igh and Igk recombination. Co-localization occured between pericentromerically located alleles in pre-B cells, and was mediated by the 3’ Igk enhancer. Deletion of this regulatory element prevented association of the Igh and Igk loci, inhibited pericentromeric recruitment and locus decontraction of an Igh allele, and resulted in increased distal VH gene rearrangement. Our data indicate a role for the Igk locus and its 3’ enhancer in directing the Igh locus to a repressive nuclear subcompartment, and in rendering the Igh locus unable to contract. PMID:18297074

  15. Improved AdaBoost ensemble approach based on loss function%基于损失函数的AdaBoost改进算法

    Institute of Scientific and Technical Information of China (English)

    雷蕾; 王晓丹

    2012-01-01

    针对AdaBoost集成时难分样本权重扩张导致训练样本在更新时分布失衡的问题,提出一种基于正负类样本损失函数(LF)的权重更新策略.权重的调整不仅与训练误差有关,还考虑到基分类器对不同类别样本的正确分类能力,从而避免训练样本过度集中于某一类的异常现象.实验结果表明,基于LF的AdaBoost能在提高收敛性能的情况下,提高算法精度,克服样本分布失衡问题.偏差方差分析的结果显示,该算法在改善偏差的情况下,能有效地减小错误率中的方差成分,提高集成的泛化能力.%As to the issue that the weight expansion for hardest samples can cause imbalance when updating the training sample in AdaBoost algorithm, an improved approach based on the Loss Function (LF) of the different patterns, namely, LF-AdaBoost, was proposed. The weight tuning was affected not only by the training error, but the performance of base classifiers for different classes, thus avoiding the excessive concentration phenomenon. The results based on UCI data sets and different base classifiers have shown that the approach can improve the speed of convergence and overcome the imbalance,as well as promote the generalization ability of ensemble classifier.

  16. AdaBoost人脸检测算法在DSP上的移植与优化%Transplantation and optimization of AdaBoost face detection algorithm on DSP

    Institute of Scientific and Technical Information of China (English)

    朱明; 陆小锋; 陆亨立; 李莹娇; 张东升

    2014-01-01

    将Viola等人提出的AdaBoost人脸检测算法由PC机移植到TMS320DM642嵌入式平台,采用EMCV (Embedded Computer Vision Library)移植方案,将PC平台的OpenCV(Open Source Computer Vision Library)视觉库中有关AdaBoost算法的模块修改使之适应嵌入式DSP平台。该移植工作主要解决了OpenCV在嵌入式平台的不兼容问题以及不同体系架构的编译器环境和库文件导致的编译和链接错误。优化工作在TI的编译器CCS中进行,在编译器平台下进行C语言的项目及程序优化,并进行了大量实验数据的对比,给出了优化的方案,对实现系统的实时性有指导性作用。%This paper transplants the AdaBoost algorithm proposed by Viola from PC platform to TMS320DM642 platform. The transplantation solves the compile problem caused by the difference between PC and DSP platform. The algorithm optimization is proceeding in CCS compiler which is provided by Texas Instruments. The paper optimizes the AdaBoost algorithm by the optimization of C code and the project settings, and a lot of experiments are done to give out the optimi-zation solution. It plays a guiding role in the implementation of real-time feature in embedded DM642 platform.

  17. The role of transcriptional coactivator ADA2b in Arabidopsis abiotic stress responses.

    Science.gov (United States)

    Vlachonasios, Konstantinos E; Kaldis, Athanasios; Nikoloudi, Adriana; Tsementzi, Despoina

    2011-10-01

    Plant growth and crop production can be greatly affected by common environmental stresses such as drought, high salinity and low temperatures. Gene expression is affected by several abiotic stresses. Stress-inducible genes are regulated by transcription factors and epigenetic mechanisms such as histone modifications. In this Mini-Review, we have explored the role of transcriptional adaptor ADA2b in Arabidopsis responses to abiotic stress. ADA2b is required for the expression of genes involved in abiotic stress either by controlling H3 and H4 acetylation in the case of salt stress or affecting nucleosome occupancy in low temperatures response.

  18. Polycomb Mediated Epigenetic Silencing and Replication Timing at the INK4a/ARF Locus during Senescence

    Science.gov (United States)

    Verthuy, Christophe; Chasson, Lionel; Serrano, Manuel; Djabali, Malek

    2009-01-01

    Background The INK4/ARF locus encodes three tumor suppressor genes (p15Ink4b, Arf and p16Ink4a) and is frequently inactivated in a large number of human cancers. Mechanisms regulating INK4/ARF expression are not fully characterized. Principal Findings Here we show that in young proliferating embryonic fibroblasts (MEFs) the Polycomb Repressive Complex 2 (PRC2) member EZH2 together with PRC1 members BMI1 and M33 are strongly expressed and localized at the INK4/ARF regulatory domain (RD) identified as a DNA replication origin. When cells enter senescence the binding to RD of both PRC1 and PRC2 complexes is lost leading to a decreased level of histone H3K27 trimethylation (H3K27me3). This loss is accompanied with an increased expression of the histone demethylase Jmjd3 and with the recruitment of the MLL1 protein, and correlates with the expression of the Ink4a/Arf genes. Moreover, we show that the Polycomb protein BMI1 interacts with CDC6, an essential regulator of DNA replication in eukaryotic cells. Finally, we demonstrate that Polycomb proteins and associated epigenetic marks are crucial for the control of the replication timing of the INK4a/ARF locus during senescence. Conclusions We identified the replication licencing factor CDC6 as a new partner of the Polycomb group member BMI1. Our results suggest that in young cells Polycomb proteins are recruited to the INK4/ARF locus through CDC6 and the resulting silent locus is replicated during late S-phase. Upon senescence, Jmjd3 is overexpressed and the MLL1 protein is recruited to the locus provoking the dissociation of Polycomb from the INK4/ARF locus, its transcriptional activation and its replication during early S-phase. Together, these results provide a unified model that integrates replication, transcription and epigenetics at the INK4/ARF locus. PMID:19462008

  19. Polycomb mediated epigenetic silencing and replication timing at the INK4a/ARF locus during senescence.

    Directory of Open Access Journals (Sweden)

    Hanane Agherbi

    Full Text Available BACKGROUND: The INK4/ARF locus encodes three tumor suppressor genes (p15(Ink4b, Arf and p16(Ink4a and is frequently inactivated in a large number of human cancers. Mechanisms regulating INK4/ARF expression are not fully characterized. PRINCIPAL FINDINGS: Here we show that in young proliferating embryonic fibroblasts (MEFs the Polycomb Repressive Complex 2 (PRC2 member EZH2 together with PRC1 members BMI1 and M33 are strongly expressed and localized at the INK4/ARF regulatory domain (RD identified as a DNA replication origin. When cells enter senescence the binding to RD of both PRC1 and PRC2 complexes is lost leading to a decreased level of histone H3K27 trimethylation (H3K27me3. This loss is accompanied with an increased expression of the histone demethylase Jmjd3 and with the recruitment of the MLL1 protein, and correlates with the expression of the Ink4a/Arf genes. Moreover, we show that the Polycomb protein BMI1 interacts with CDC6, an essential regulator of DNA replication in eukaryotic cells. Finally, we demonstrate that Polycomb proteins and associated epigenetic marks are crucial for the control of the replication timing of the INK4a/ARF locus during senescence. CONCLUSIONS: We identified the replication licencing factor CDC6 as a new partner of the Polycomb group member BMI1. Our results suggest that in young cells Polycomb proteins are recruited to the INK4/ARF locus through CDC6 and the resulting silent locus is replicated during late S-phase. Upon senescence, Jmjd3 is overexpressed and the MLL1 protein is recruited to the locus provoking the dissociation of Polycomb from the INK4/ARF locus, its transcriptional activation and its replication during early S-phase. Together, these results provide a unified model that integrates replication, transcription and epigenetics at the INK4/ARF locus.

  20. Pegademase bovine (PEG-ADA) for the treatment of infants and children with severe combined immunodeficiency (SCID)

    Science.gov (United States)

    Booth, Claire; Gaspar, H Bobby

    2009-01-01

    Adenosine deaminase deficiency (ADA) is a rare, inherited disorder of purine metabolism characterized by immunodeficiency, failure to thrive and metabolic abnormalities. A lack of the enzyme ADA allows accumulation of toxic metabolites causing defects of both cell mediated and humoral immunity leading to ADA severe combined immune deficiency (SCID), a condition that can be fatal in early infancy if left untreated. Hematopoietic stem cell transplant is curative but is dependent on a good donor match. Other therapeutic options include enzyme replacement therapy (ERT) with pegademase bovine (PEG-ADA) and more recently gene therapy. PEG-ADA has been used in over 150 patients worldwide and has allowed stabilization of patients awaiting more definitive treatment with hematopoietic stem cell transplant. It affords both metabolic detoxification and protective immune function with patients remaining clinically well, but immune reconstitution is often suboptimal and may not be long lived. We discuss the pharmacokinetics, immune reconstitution, effects on systemic disease and side effects of treatment with PEG-ADA. We also review the long-term outcome of patients receiving ERT and discuss the role of PEG-ADA in the management of infants and children with ADA-SCID, alongside other therapeutic options. PMID:19707420

  1. Alterations in the brain adenosine metabolism cause behavioral and neurological impairment in ADA-deficient mice and patients

    Science.gov (United States)

    Sauer, Aisha V.; Hernandez, Raisa Jofra; Fumagalli, Francesca; Bianchi, Veronica; Poliani, Pietro L.; Dallatomasina, Chiara; Riboni, Elisa; Politi, Letterio S.; Tabucchi, Antonella; Carlucci, Filippo; Casiraghi, Miriam; Carriglio, Nicola; Cominelli, Manuela; Forcellini, Carlo Alberto; Barzaghi, Federica; Ferrua, Francesca; Minicucci, Fabio; Medaglini, Stefania; Leocani, Letizia; la Marca, Giancarlo; Notarangelo, Lucia D.; Azzari, Chiara; Comi, Giancarlo; Baldoli, Cristina; Canale, Sabrina; Sessa, Maria; D’Adamo, Patrizia; Aiuti, Alessandro

    2017-01-01

    Adenosine Deaminase (ADA) deficiency is an autosomal recessive variant of severe combined immunodeficiency (SCID) caused by systemic accumulation of ADA substrates. Neurological and behavioral abnormalities observed in ADA-SCID patients surviving after stem cell transplantation or gene therapy represent an unresolved enigma in the field. We found significant neurological and cognitive alterations in untreated ADA-SCID patients as well as in two groups of patients after short- and long-term enzyme replacement therapy with PEG-ADA. These included motor dysfunction, EEG alterations, sensorineural hypoacusia, white matter and ventricular alterations in MRI as well as a low mental development index or IQ. Ada-deficient mice were significantly less active and showed anxiety-like behavior. Molecular and metabolic analyses showed that this phenotype coincides with metabolic alterations and aberrant adenosine receptor signaling. PEG-ADA treatment corrected metabolic adenosine-based alterations, but not cellular and signaling defects, indicating an intrinsic nature of the neurological and behavioral phenotype in ADA deficiency. PMID:28074903

  2. The multifaceted roles of FLOWERING LOCUS T in plant development.

    Science.gov (United States)

    Pin, P A; Nilsson, O

    2012-10-01

    One of the key developmental processes in flowering plants is the differentiation of the shoot apical meristem into a floral meristem. This transition is regulated through the integration of environmental and endogenous stimuli, involving a complex, hierarchical signalling network. In arabidopsis, the FLOWERING LOCUS T (FT) protein, a mobile signal recognized as a major component of florigen, has a central position in mediating the onset of flowering. FT-like genes seem to be involved in regulating the floral transition in all angiosperms examined to date. Evidence from molecular evolution studies suggests that the emergence of FT-like genes coincided with the evolution of the flowering plants. Hence, the role of FT in floral promotion is conserved, but appears to be restricted to the angiosperms. Besides flowering, FT-like proteins have also been identified as major regulatory factors in a wide range of developmental processes including fruit set, vegetative growth, stomatal control and tuberization. These multifaceted roles of FT-like proteins have resulted from extensive gene duplication events, which occurred independently in nearly all modern angiosperm lineages, followed by sub- or neo-functionalization. This review assesses the plethora of roles that FT-like genes have acquired during evolution and their implications in plant diversity, adaptation and domestication.

  3. A Plan for Collecting Ada Software Development Cost, Schedule, and Environment Data.

    Science.gov (United States)

    1987-04-02

    person-weeks is the minimum training time. This time includes teaching a methodology adapted to Ada and 50 percent hands-on experiments under the...level." He felt translation of existing programs was an excellent way to bring pro- grammers up to speed. The more mathematical functions in the program

  4. How We Manage Adenosine Deaminase-Deficient Severe Combined Immune Deficiency (ADA SCID).

    Science.gov (United States)

    Kohn, Donald B; Gaspar, H Bobby

    2017-02-14

    Adenosine deaminase-deficient severe combined immune deficiency (ADA SCID) accounts for 10-15% of cases of human SCID. From what was once a uniformly fatal disease, the prognosis for infants with ADA SCID has improved greatly based on the development of multiple therapeutic options, coupled with more frequent early diagnosis due to implementation of newborn screening for SCID. We review the various treatment approaches for ADA SCID including allogeneic hematopoietic stem cell transplantation (HSCT) from a human leukocyte antigen-matched sibling or family member or from a matched unrelated donor or a haplo-identical donor, autologous HSCT with gene correction of the hematopoietic stem cells (gene therapy-GT), and enzyme replacement therapy (ERT) with polyethylene glycol-conjugated adenosine deaminase. Based on growing evidence of safety and efficacy from GT, we propose a treatment algorithm for patients with ADA SCID that recommends HSCT from a matched family donor, when available, as a first choice, followed by GT as the next option, with allogeneic HSCT from an unrelated or haplo-identical donor or long-term ERT as other options.

  5. OSHA and ADA: "Reasonable Accommodation" in Training Persons with Developmental Disabilities.

    Science.gov (United States)

    Sandoz, Charles J.

    This paper documents an approach to meeting the training requirements of the Occupational Safety and Health Act (OSHA) and the "reasonable accommodation" requirements of the Americans with Disabilities Act (ADA) for individuals with developmental disabilities. It describes a training program used with three adult workers with mild mental…

  6. 61 FR 11863 - Vehicle Management Area Designation and Road Closure Order; Ada, Elmore, Canyon, and Owyhee...

    Science.gov (United States)

    1996-03-22

    ... Vehicle Management Area Designation and Road Closure Order; Ada, Elmore, Canyon, and Owyhee Counties, ID... except for those portions of the NCA currently included within the Owyhee Front Special Recreation... Bruneau, Kuna, and Owyhee Management Framework Plans, and the Jarbidge Resource Management Plan....

  7. 61 FR 11862 - Shooting Closures and Restrictions in Ada, Canyon, Elmore, and Owyhee Counties, ID

    Science.gov (United States)

    1996-03-22

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE INTERIOR Shooting Closures and Restrictions in Ada, Canyon, Elmore, and Owyhee Counties, ID AGENCY: Bureau of Land... Bruneau, Kuna, and Owyhee Management Framework Plans. Violation of this order is punishable by a fine...

  8. Anemia nos pacientes com insuficiência cardíaca avançada

    Directory of Open Access Journals (Sweden)

    Juliano Cardoso

    2010-10-01

    Full Text Available FUNDAMENTO: Anemia está associada à pior evolução nos pacientes com insuficiência cardíaca (IC. Entretanto, há poucos estudos sobre a anemia nos pacientes com IC avançada. OBJETIVO: Avaliar as características da anemia na IC em fase avançada. MÉTODOS: Foram incluídos 99 pacientes hospitalizados para compensação de IC (CF IV/NYHA, com idade > 18 anos e FEVE 12 g/dl. A anemia foi marcador independente de mau prognóstico na análise multivariada (mortalidade 47% vs 24,6%, p = 0,016, risco relativo 2,54. CONCLUSÃO: Anemia acomete, aproximadamente, 1/3 dos pacientes com IC avançada, e a deficiência de ferro é uma importante etiologia. Pacientes anêmicos são mais idosos e apresentaram função renal mais deteriorada. A melhora da congestão não foi suficiente para melhorar a anemia na maioria dos casos. Nos pacientes com IC avançada, a anemia é marcador independente de mau prognóstico.

  9. Automatic player detection and recognition in images using AdaBoost

    NARCIS (Netherlands)

    Mahmood, Zahid; Ali, Tauseef; Khattak, Shadid

    2012-01-01

    In this work we developed an augmented reality sports broadcasting application for enhanced end-user experience. The proposed system consists of three major steps. In the first step each player is detected using AdaBoost Algorithm. In second step, same algorithm is used to detect face in each player

  10. CREASE 6.0 Catalog of Resources for Education in Ada and Software Engineering

    Science.gov (United States)

    1992-02-01

    Addison-Wesley, 1989. Gonzaler , D.W. Ada Programming Handbook. Compiler(s): DEC Compiler Conpumr(s): Vax-under VMS ScIedu/e The class meets twice a...Successfully completed another high-order programming course Credit Hours: 3 Point of Contact: Sergio An toy, Dept. of Computer Science, Portland State

  11. Infrastructure Measures versus ADAS for Traffic Safety - Application of the Grey Relational Analysis Evaluation Method

    NARCIS (Netherlands)

    Lu, M.; Wevers, K.; Heijden, R.E.C.M. van der; Marchau, V.A.W.J.

    2005-01-01

    Two of the main approaches to improve traffic safety are extensive redesign of the physical road infrastructure and large-scale implementation of Advanced Driver Assistance Systems (ADAS). These strategies are to a large extent substitutes, but also partly complementary. This paper determines strate

  12. COMPARISION OF ADENOSINE DEAMINASE [ADA] LEVELS WITH CYTO-CHEMICAL ANALYSIS OF PLEURAL FLUIDS TO DIFFERENTIATE TUBERCULAR AND NON â TUBERCULAR EFFUSIONS

    Directory of Open Access Journals (Sweden)

    Choukimath M Sharanabasav

    2013-12-01

    Full Text Available This study is intended to utilize biochemical parameters like ADA and protein levels in comparison with cell count and cell type in pleural fluid to differentiate tubercular and non-tubercular effusions. We have analyzed a total of 208 cases and among them 59.61% cases were ADA positive and 40.39% cases were ADA negative, and 156 cases were exudates and 52 cases were transudates. Categorized these effusions into 4 groups taking consideration of ADA, cell count, lymphocyte and protein levels as exudate with ADA positive, exudate with ADA negative, transudate with ADA positive and transudate with ADA negative. This study has shown promising results to diagnose tuberculosis with immediate and cost effectiveness that can be undertaken by any basic laboratory, in a endemic areas and developing countries like India

  13. Transgenic rice plants harboring the grain hardness-locus region of Aegilops tauschii.

    Science.gov (United States)

    Suzuki, Go; Wada, Hideo; Goto, Hiromi; Nakano, Akiko; Oba, Haruna; Deno, Takuya; Rahman, Sadequr; Mukai, Yasuhiko

    2011-12-01

    Grain hardness of wheat is determined by the hardness (Ha)-locus region, which contains three friabilin-related genes: puroindoline-a (Pina), puroindoline-b (Pinb) and GSP-1. In our previous study, we produced the transgenic rice plants harboring the large genomic fragment of the Ha-locus region of Aegilops tauschii containing Pina and GSP-1 genes by Agrobacterium-mediated transformation. To examine the effects of the transgenes in the rice endosperms, we firstly confirmed the homozygosity of the T-DNAs in four independent T2 lines by using fluorescence in situ hybridization (FISH) and DNA gel blot analyses. The transgenes, Pina and GSP-1, were stably expressed in endosperms of the T3 and T4 seeds at RNA and protein levels, indicating that the promoters and other regulatory elements on the wheat Ha-locus region function in rice, and that multigene transformation using a large genomic fragment is a useful strategy. The functional contribution of the transgene-derived friabilins to the rice endosperm structure was considered as an increase of spaces between compound starch granules, resulting in a high proportion of white turbidity seeds.

  14. A genetic map of chromosome 20q12-q13.1: Multiple highly polymorphic microsatellite and RFLP markers linked to the maturity-onset diabetes of the young (MODY) locus

    OpenAIRE

    1993-01-01

    Multiple highly polymorphic markers have been used to construct a genetic map of the q12-q13.1 region of chromosome 20 and to map the location of the maturity-onset diabetes of the young (MODY) locus. The genetic map encompasses 23 cM and includes 11 loci with PIC values >.50, seven of which have PICs >.70. New dinucleotide repeat polymorphisms associated with the D20S17, PPGB, and ADA loci have been identified and mapped. The dinucleotide repeat polymorphisms have increased the PIC of the AD...

  15. Adapting in vitro embryonic stem cell differentiation to the study of locus control regions.

    Science.gov (United States)

    Lahiji, Armin; Kučerová-Levisohn, Martina; Holmes, Roxanne; Zúñiga-Pflücker, Juan Carlos; Ortiz, Benjamin D

    2014-05-01

    Numerous locus control region (LCR) activities have been discovered in gene loci important to immune cell development and function. LCRs are a distinct class of cis-acting gene regulatory elements that appear to contain all the DNA sequence information required to establish an independently and predictably regulated gene expression program at any genomic site in native chromatin of a whole animal. As such, LCR-regulated transgenic reporter systems provide invaluable opportunities to investigate the mechanisms of gene regulatory DNA action during development. Furthermore the qualities of LCR-driven gene expression, including spatiotemporal specificity and "integration site-independence" would be highly desirable to incorporate into vectors used in therapeutic genetic engineering. Thus, advancement in the methods used to investigate LCRs is of considerable basic and translational significance. We study the LCR present in the mouse T cell receptor (TCR)-α gene locus. Until recently, transgenic mice provided the only experimental model capable of supporting the entire spectrum of LCR activities. We have recently reported complete manifestation of TCRα LCR function in T cells derived in vitro from mouse embryonic stem cells (ESC), thus validating a complete cell culture model for the full range of LCR activities seen in transgenic mice. Here we discuss the critical parameters involved in studying LCR-regulated gene expression during in vitro hematopoietic differentiation from ESCs. This advance provides an approach to speed progress in the LCR field, and facilitate the clinical application of its findings, particularly to the genetic engineering of T cells.

  16. Locus of control and online learning

    Directory of Open Access Journals (Sweden)

    Suretha Esterhuysen

    2004-10-01

    Full Text Available The integration of online learning in university courses is considered to be both inevitable and necessary. Thus there is an increasing need to raise awareness among educators and course designers about the critical issues impacting on online learning. The aim of this study, therefore, was to assess the differences between two groups of first-year Business Sciences learners (online and conventional learners in terms of biographic and demographic characteristics and locus of control. The study population consisted of 586 first-year learners of whom 185 completed the Locus of Control Inventory (LCI. The results show that the two groups of learners do not differ statistically significantly from each other with respect to locus of control. The findings and their implications are also discussed. Opsomming Die integrasie van aanlyn-leer in universiteitskursusse word beskou as sowel onafwendbaar as noodsaaklik. Daar is dus ’n toenemende behoefte om bewustheid onder opvoedkundiges en kursusontwerpers te kweek oor die kritiese aspekte wat ’n impak op aanlyn-leer het (Morgan, 1996. Daarom was die doel van hierdie ondersoek om die verskille tussen twee groepe eerstejaarleerders in Bestuurs- en Ekonomiese Wetenskap (aanlyn en konvensionele leerders te bepaal ten opsigte van biografiese en demografiese eienskappe en lokus van beheer. Die populasie het bestaan uit 586 eerstejaarleerders waarvan 185 die Lokus van Beheer Vraelys voltooi het. Die resultate toon dat die twee groepe leerders nie statisties beduidend van mekaar verskil het met betrekking tot lokus van beheer nie. Die bevindinge en implikasies word ook bespreek.

  17. Homozygosity for a novel adenosine deaminase (ADA) nonsense mutation (Q3>X) in a child with severe combined immunodeficiency (SCID)

    Energy Technology Data Exchange (ETDEWEB)

    Santisteban, I.; Arrendondo-Vega, F.X.; Kelly, S. [Duke Univ. Medical Center, Durham, NC (United States)]|[Hospital for Sick Children, Ontario (Canada)] [and others

    1994-09-01

    A Somali girl was diagnosed with ADA-deficient SCID at 7 mo; she responded well to PEG-ADA replacement and is now 3.3 yr old. ADA mRNA was undetectable (Northern) in her cultured T cells, but was present in T cells of her parents and two sibs. All PCR-amplified exon 1 genomic clones from the patient had a C>T transition at bp 7 relative to the start of translation, replacing Gln at codon 3 (AGA) with a termination codon (TGA, Q3>X). Patient cDNA (prepared by RT-PCR with a 5{prime} primer that covered codons 1-7) had a previously described polymorphism, K80>R, but was otherwise normal, indicating that no other coding mutations were present. A predicted new genomic BfaI restriction site was used to establish her homozygosity for Q3>X and to analyze genotypes of family members. We also analyzed the segregation of a variable Alu polyA-associated TAAA repeat (AluVpA) situated 5{prime} of the ADA gene. Three different AluVpA alleles were found, one of which was only present in the father and was not associated with his Q3>X allele. Because the father`s RBCs had only {approximately}15% of normal ADA activity, we analyzed his ADA cDNA. We found a G>A transition at bp 425 that substitutes Gln for Arg142, a solvent-accessible residue, and eliminates a BsmAI site in exon 5. ADA activity of the R142>Q in vitro translation product was 20-25% of wild type ADA translation product, suggesting that R142>Q is a new {open_quote}partial{close_quote} ADA deficiency mutation. As expected, Q3>X mRNA did not yield a detectable in vitro translation product. We conclude that the patient`s father is a compound heterozygote carrying the ADA Q3>X/R142>Q genotype. {open_quote}Partial{close_quote} ADA deficiency unassociated with immunodeficiency is relatively common in individuals of African descent. The present findings and previous observations suggest that {open_quote}partial{close_quote} ADA deficiency may have had an evolutionary advantage.

  18. Relationships between locus of control and paranormal beliefs.

    Science.gov (United States)

    Newby, Robert W; Davis, Jessica Boyette

    2004-06-01

    The present study investigated the associations between scores on paranormal beliefs, locus of control, and certain psychological processes such as affect and cognitions as measured by the Linguistic Inquiry and Word Count. Analysis yielded significant correlations between scores on Locus of Control and two subscales of Tobacyk's (1988) Revised Paranormal Beliefs Scale, New Age Philosophy and Traditional Paranormal Beliefs. A step-wise multiple regression analysis indicated that Locus of Control was significantly related to New Age Philosophy. Other correlations were found between Tobacyk's subscales, Locus of Control, and three processes measured by the Linguistic Inquiry and Word Count.

  19. Ilíada Latina: tradução e estudo literário da adaptação da Ilíada de Homero na antiguidade latina

    OpenAIRE

    2012-01-01

    O poema Ilíada Latina é um adaptação resumida em latim da Ilíada, da época de Nero. Já no século I a.C., o mito troiano passou a ser cada vez menos conhecido através da Ilíada, já que o grego era apenas aprendido pela elite romana. Durante a Idade Média, o grego deixou de ser aprendido no Ocidente, e assim, a Ilíada se perdeu durante esse período, até que estudiosos italianos começaram a aprender grego com os viajantes bizantinos no século XIV. A história da guerra de Troia, portanto, passou ...

  20. Discrimination of Breast Tumors in Ultrasonic Images by Classifier Ensemble Trained with AdaBoost

    Science.gov (United States)

    Takemura, Atsushi; Shimizu, Akinobu; Hamamoto, Kazuhiko

    In this paper, we propose a novel method for acurate automated discrimination of breast tumors (carcinoma, fibroadenoma, and cyst). We defined 199 features related to diagnositic observations noticed when a doctor judges breast tumors, such as internal echo, shape, and boundary echo. These features included novel features based on a parameter of log-compressed K distribution, which reflect physical characteristics of ultrasonic B-mode imaging. Furthermore, we propose a discrimination method of breast tumors by using an ensemble classifier based on the multi-class AdaBoost algorithm with effective features selection. Verification by analyzing 200 carcinomas, 30 fibroadenomas and 30 cycts showed the usefulness of the newly defined features and the effectiveness of the discrimination by using an ensemble classifier trained by AdaBoost.

  1. Cohesin is required for higher-order chromatin conformation at the imprinted IGF2-H19 locus.

    Directory of Open Access Journals (Sweden)

    Raffaella Nativio

    2009-11-01

    Full Text Available Cohesin is a chromatin-associated protein complex that mediates sister chromatid cohesion by connecting replicated DNA molecules. Cohesin also has important roles in gene regulation, but the mechanistic basis of this function is poorly understood. In mammalian genomes, cohesin co-localizes with CCCTC binding factor (CTCF, a zinc finger protein implicated in multiple gene regulatory events. At the imprinted IGF2-H19 locus, CTCF plays an important role in organizing allele-specific higher-order chromatin conformation and functions as an enhancer blocking transcriptional insulator. Here we have used chromosome conformation capture (3C assays and RNAi-mediated depletion of cohesin to address whether cohesin affects higher order chromatin conformation at the IGF2-H19 locus in human cells. Our data show that cohesin has a critical role in maintaining CTCF-mediated chromatin conformation at the locus and that disruption of this conformation coincides with changes in IGF2 expression. We show that the cohesin-dependent, higher-order chromatin conformation of the locus exists in both G1 and G2 phases of the cell cycle and is therefore independent of cohesin's function in sister chromatid cohesion. We propose that cohesin can mediate interactions between DNA molecules in cis to insulate genes through the formation of chromatin loops, analogous to the cohesin mediated interaction with sister chromatids in trans to establish cohesion.

  2. Data set for comparison of cellular dynamics between human AAVS1 locus-modified and wild-type cells

    Directory of Open Access Journals (Sweden)

    Takeomi Mizutani

    2016-03-01

    Full Text Available This data article describes cellular dynamics, such as migration speed and mobility of the cytoskeletal protein, of wild-type human fibroblast cells and cells with a modified adeno-associated virus integration site 1 (AAVS1 locus on human chromosome 19. Insertion of exogenous gene into the AAVS1 locus has been conducted in recent biological researches. Previously, our data showed that the AAVS1-modification changes cellular contractile force (Mizutani et al., 2015 [1]. To assess if this AAVS1-modification affects cell migration, we compared cellular migration speed and turnover of cytoskeletal protein in human fibroblasts and fibroblasts with a green fluorescent protein gene knocked-in at the AAVS1 locus in this data article. Cell nuclei were stained and changes in their position attributable to cell migration were analyzed. Fluorescence recovery was observed after photobleaching for the fluorescent protein-tagged myosin regulatory light chain. Data here are related to the research article “Transgene Integration into the Human AAVS1 Locus Enhances Myosin II-Dependent Contractile Force by Reducing Expression of Myosin Binding Subunit 85” [1].

  3. Data set for comparison of cellular dynamics between human AAVS1 locus-modified and wild-type cells.

    Science.gov (United States)

    Mizutani, Takeomi; Haga, Hisashi; Kawabata, Kazushige

    2016-03-01

    This data article describes cellular dynamics, such as migration speed and mobility of the cytoskeletal protein, of wild-type human fibroblast cells and cells with a modified adeno-associated virus integration site 1 (AAVS1) locus on human chromosome 19. Insertion of exogenous gene into the AAVS1 locus has been conducted in recent biological researches. Previously, our data showed that the AAVS1-modification changes cellular contractile force (Mizutani et al., 2015 [1]). To assess if this AAVS1-modification affects cell migration, we compared cellular migration speed and turnover of cytoskeletal protein in human fibroblasts and fibroblasts with a green fluorescent protein gene knocked-in at the AAVS1 locus in this data article. Cell nuclei were stained and changes in their position attributable to cell migration were analyzed. Fluorescence recovery was observed after photobleaching for the fluorescent protein-tagged myosin regulatory light chain. Data here are related to the research article "Transgene Integration into the Human AAVS1 Locus Enhances Myosin II-Dependent Contractile Force by Reducing Expression of Myosin Binding Subunit 85" [1].

  4. Issues to be Considered in the Evaluation of Technical Proposals from the Ada (Trademark) Language Perspective.

    Science.gov (United States)

    2014-09-26

    facilities (software test bed, dynamic simulation) are proposed to support the testing phases? 17. What proprietary data rights (if any) are...and beginners; for example, is prompting via menus provided for beginners and single keystroke capability provided for experienced users? 2-13 - input...Statement of Work: - constraint and numeric error checking - dynamic storage management - exception management 2-1 * 2.3 IMPLEMENTATION LANGUAGE If Ada has

  5. VIII Olimpíada Brasileira de Astronomia e Astronáutica

    Science.gov (United States)

    Garcia Canalle, João Batista; Villas da Rocha, Jaime Fernando; Wuensche de Souza, Carlos Alexandre; Pereira Ortiz, Roberto; Aguilera, Nuricel Villalonga; Padilha, Maria De Fátima Catta Preta; Pessoa Filho, José Bezerra; Soares Rodrigues, Ivette Maria

    2007-07-01

    Neste trabalho apresentamos as motivações pelas quais organizamos, em conjunto, pela primeira vez, a Olimpíada Brasileira de Astronomia incluindo a Astronáutica, em colaboração com a Agência Espacial Brasileira. Esta ampliação contribuiu para atrair ainda mais alunos, professores, escolas e patrocinadores para participarem desta Olimpíada. Em 2005 participaram da VIII Olimpíada Brasileira de Astronomia e Astronáutica (VIII OBA) 187.726 alunos distribuídos por 3.229 escolas, pertencentes a todos os estados brasileiros, incluindo o Distrito Federal. O crescimento em número de alunos participantes foi 52,4% maior do que em 2004. Em abril de 2005 organizamos, em Itapecerica da Serra, SP, um curso para os 50 alunos previamente selecionados e participantes da VII OBA e ao final selecionamos, dentre eles, uma equipe de 5 alunos, os quais representaram o Brasil na X Olimpíada Internacional de Astronomia, na China, em outubro de 2005. Ganhamos, pela primeira vez, uma medalha de ouro naquele evento. Em Agosto de 2005, organizamos a VIII Escola de Agosto para 50 alunos e respectivos professores, em Águas de Lindóia, SP, juntamente com a XXXI reunião anual da Sociedade Astronômica Brasileira (SAB). Em novembro de 2005 realizamos a I Jornada Espacial, em São José dos Campos, com 22 alunos e 22 professores selecionados dentre os participantes que melhores resultados obtiveram nas questões de Astronáutica da VIII OBA. Neste trabalho detalhamos os resultados da VIII OBA bem como as ações subseqüentes.

  6. Analysis of Training-Related Issues in the Transition to Ada in the DON

    Science.gov (United States)

    1991-09-01

    X. T Co-Advisor David I. Wi chairanDepartment of Adminit ences ii ABSTRACT The Department of Defense has been continually plagued with problems in...engineering principals coupled with the programming power Ada has to offer, can lead to increased programming productivity. Productivity can be...shortages of software professionals. In addition, with more professionals trained in solid software engineering principals , code reusability will

  7. BASIC CRITERIA OF IRANIAN COMMERCIAL TOOTHPASTES AND AN ADA APPROVED BRAND (CREST)

    OpenAIRE

    2003-01-01

    Introduction: The effectiveness of fluorided toothpastes in reducing dental caries is well-documented, However not all fluorided toothpastes are equally effective. The objective of this study was to compare some essential criteria of six different toothpastes manufactured in Iran with one brand of ADA approved toothpaste (Crest). Methods. Six commercial toothpastes produced in Iran named as Paveh, Puneh, Nasim, Darugar, golpasand and saviz were compared with Crest in three subjects as fo...

  8. Software engineering and Ada (Trademark) training: An implementation model for NASA

    Science.gov (United States)

    Legrand, Sue; Freedman, Glenn

    1988-01-01

    The choice of Ada for software engineering for projects such as the Space Station has resulted in government and industrial groups considering training programs that help workers become familiar with both a software culture and the intricacies of a new computer language. The questions of how much time it takes to learn software engineering with Ada, how much an organization should invest in such training, and how the training should be structured are considered. Software engineering is an emerging, dynamic discipline. It is defined by the author as the establishment and application of sound engineering environments, tools, methods, models, principles, and concepts combined with appropriate standards, guidelines, and practices to support computing which is correct, modifiable, reliable and safe, efficient, and understandable throughout the life cycle of the application. Neither the training programs needed, nor the content of such programs, have been well established. This study addresses the requirements for training for NASA personnel and recommends an implementation plan. A curriculum and a means of delivery are recommended. It is further suggested that a knowledgeable programmer may be able to learn Ada in 5 days, but that it takes 6 to 9 months to evolve into a software engineer who uses the language correctly and effectively. The curriculum and implementation plan can be adapted for each NASA Center according to the needs dictated by each project.

  9. Reinforced AdaBoost learning for object detection with local pattern representations.

    Science.gov (United States)

    Lee, Younghyun; Han, David K; Ko, Hanseok

    2013-01-01

    A reinforced AdaBoost learning algorithm is proposed for object detection with local pattern representations. In implementing AdaBoost learning, the proposed algorithm employs an exponential criterion as a cost function and Newton's method for its optimization. In particular, we introduce an optimal selection of weak classifiers minimizing the cost function and derive the reinforced predictions based on a judicial confidence estimate to determine the classification results. The weak classifier of the proposed method produces real-valued predictions while that of the conventional AdaBoost method produces integer valued predictions of +1 or -1. Hence, in the conventional learning algorithms, the entire sample weights are updated by the same rate. On the contrary, the proposed learning algorithm allows the sample weights to be updated individually depending on the confidence level of each weak classifier prediction, thereby reducing the number of weak classifier iterations for convergence. Experimental classification performance on human face and license plate images confirm that the proposed method requires smaller number of weak classifiers than the conventional learning algorithm, resulting in higher learning and faster classification rates. An object detector implemented based on the proposed learning algorithm yields better performance in field tests in terms of higher detection rate with lower false positives than that of the conventional learning algorithm.

  10. Using Ada to implement the operations management system in a community of experts

    Science.gov (United States)

    Frank, M. S.

    1986-01-01

    An architecture is described for the Space Station Operations Management System (OMS), consisting of a distributed expert system framework implemented in Ada. The motivation for such a scheme is based on the desire to integrate the very diverse elements of the OMS while taking maximum advantage of knowledge based systems technology. Part of the foundation of an Ada based distributed expert system was accomplished in the form of a proof of concept prototype for the KNOMES project (Knowledge-based Maintenance Expert System). This prototype successfully used concurrently active experts to accomplish monitoring and diagnosis for the Remote Manipulator System. The basic concept of this software architecture is named ACTORS for Ada Cognitive Task ORganization Scheme. It is when one considers the overall problem of integrating all of the OMS elements into a cooperative system that the AI solution stands out. By utilizing a distributed knowledge based system as the framework for OMS, it is possible to integrate those components which need to share information in an intelligent manner.

  11. Locus-specific ribosomal RNA gene silencing in nucleolar dominance.

    Directory of Open Access Journals (Sweden)

    Michelle S Lewis

    Full Text Available The silencing of one parental set of rRNA genes in a genetic hybrid is an epigenetic phenomenon known as nucleolar dominance. We showed previously that silencing is restricted to the nucleolus organizer regions (NORs, the loci where rRNA genes are tandemly arrayed, and does not spread to or from neighboring protein-coding genes. One hypothesis is that nucleolar dominance is the net result of hundreds of silencing events acting one rRNA gene at a time. A prediction of this hypothesis is that rRNA gene silencing should occur independent of chromosomal location. An alternative hypothesis is that the regulatory unit in nucleolar dominance is the NOR, rather than each individual rRNA gene, in which case NOR localization may be essential for rRNA gene silencing. To test these alternative hypotheses, we examined the fates of rRNA transgenes integrated at ectopic locations. The transgenes were accurately transcribed in all independent transgenic Arabidopsis thaliana lines tested, indicating that NOR localization is not required for rRNA gene expression. Upon crossing the transgenic A. thaliana lines as ovule parents with A. lyrata to form F1 hybrids, a new system for the study of nucleolar dominance, the endogenous rRNA genes located within the A. thaliana NORs are silenced. However, rRNA transgenes escaped silencing in multiple independent hybrids. Collectively, our data suggest that rRNA gene activation can occur in a gene-autonomous fashion, independent of chromosomal location, whereas rRNA gene silencing in nucleolar dominance is locus-dependent.

  12. Genetic mapping of ada and adc mutations affecting the adaptive response of Escherichia coli to alkylating agents.

    Science.gov (United States)

    Sedgwick, B

    1982-05-01

    The adaptive response to alkylating agents is an inducible repair system which protects Escherichia coli against the mutagenicity and toxicity of these agents. Four mutations, ada-3, ada-5, ada-6, and adc-1, which confer differing phenotypes as regards this response, were shown to be cotransducible with gyrA, and were located at 47 min on the E. coli genetic map. A mutation already shown on the map at 47 min as tag (B. J. Bachmann and K. B. Low, Microbiol. Rev. 44:1--56, 1980; Karran et al., J. Mol. Biol. 140:101--127, 1980) is now known to be an ada mutation (G. Evensen and E. Seeberg, personal communication).

  13. Proceedings of the Annual Conference on Ada (Trademark) Technology (2nd) Held at Hampton, Virginia on March 27, 28, 1984.

    Science.gov (United States)

    1984-03-01

    to PDL as defined by Uaine and Gordon is a mission requiremonts and system parameters." ’ pidgin ’ language in that it uses the vocabulary of one...greatest advantage to a design language wnich generating a standard pidgin language merginq Ada is a subset of a target language is that ’iinten- with...commentary and English, appropriate Ada keywords are combined with annotations defined. These serve to extend the English narrative in the classical pidgin

  14. A High Accuracy Pedestrian Detection System Combining a Cascade AdaBoost Detector and Random Vector Functional-Link Net

    OpenAIRE

    Zhihui Wang; Sook Yoon; Shan Juan Xie; Yu Lu; Dong Sun Park

    2014-01-01

    In pedestrian detection methods, their high accuracy detection rates are always obtained at the cost of a large amount of false pedestrians. In order to overcome this problem, the authors propose an accurate pedestrian detection system based on two machine learning methods: cascade AdaBoost detector and random vector functional-link net. During the offline training phase, the parameters of a cascade AdaBoost detector and random vector functional-link net are trained by standard dataset. These...

  15. Cut Locus Construction using Deformable Simplicial Complexes

    DEFF Research Database (Denmark)

    Misztal, Marek Krzysztof; Bærentzen, Jakob Andreas; Anton, François;

    2011-01-01

    In this paper we present a method for appproximating cut loci for a given point p on Riemannian 2D manifolds, closely related to the notion of Voronoi diagrams. Our method finds the cut locus by advecting a front of points equally distant from p along the geodesics originating at p and finding...... the domain to have disk topology. We test our method for tori of revolution and compare our results to the benchmark ones from [2]. The method, however, is generic and can be easily adapted to construct cut loci for other manifolds of genera other than 1....... the lines of self-intersections of the front in the parametric space. This becomes possible by using the deformable simplicial complexes (DSC, [1]) method for deformable interface tracking. DSC provide a simple collision detection mechanism, allows for interface topology control, and does not require...

  16. Sign Stability via Root Locus Analysis

    CERN Document Server

    Gibson, Travis E

    2015-01-01

    With the rise of network science old topics in ecology and economics are resurfacing. One such topic is structural stability (often referred to as qualitative stability or sign stability). A system is deemed structurally stable if the system remains stable for all possible parameter variations so long as the parameters do not change sign. This type of stability analysis is appealing when studying real systems as the underlying stability result only requires the scientist or engineer to know the sign of the parameters in the model and not the specific values. The necessary and sufficient conditions for qualitative stability however are opaque. In order to shed light on those conditions root locus analysis is employed. This technique allows us to illustrate the necessary conditions for qualitative stability.

  17. Is this Red Spot the Blue Spot (locus ceruleum)?

    Energy Technology Data Exchange (ETDEWEB)

    Choe, Won Sick; Lee, Yu Kyung; Lee, Min Kyung; Hwang, Kyung Hoon [Gachon University Gil Hospital, Incheon (Korea, Republic of)

    2010-06-15

    The authors report brain images of 18F-FDG-PET in a case of schizophrenia. The images showed strikingly increased bilateral uptake in the locus ceruleum. The locus ceruleum is called the blue spot and known to be a center of the norepinephrinergic system.

  18. Locus of Control, Attitudes toward Education, and Teaching Behaviors.

    Science.gov (United States)

    Kremer, Lya

    1982-01-01

    Tests 191 elementary school teachers in northern Israel for the relationships among locus of control, traditional and progressive educational attitudes, and related teaching behaviors. Finds external and internal locus of control explain the variance in traditional and progressive attitudes, respectively, and teaching behaviors. (Author/LC)

  19. Metacognition: As a Predictor of One's Academic Locus of Control

    Science.gov (United States)

    Arslan, Serhat; Akin, Ahmet

    2014-01-01

    The purpose of this study is to examine the effect of metacognition on one's academic locus of control. The study's sample group consists of 451 university students enrolled in various programs at Sakarya University, Turkey. In this study, the Metacognitive Awareness Inventory and the Academic Locus of Control Scale were used. The correlations and…

  20. Locus of Control and Marital Stability: A Longitudinal Study.

    Science.gov (United States)

    Constantine, John A.; Bahr, Stephen J.

    1980-01-01

    Investigated relationship between locus of control and marital stability of young men. Factors derived from locus of control measures included leadership, personal, and fate scales. Results indicated the only significant difference was on the leadership scale between men remaining married and those who did not. (RC)

  1. Turkish population data on the short tandem repeat locus TPOX

    DEFF Research Database (Denmark)

    Vural, B; Poda, M; Atlioglu, E;

    1998-01-01

    Allele and genotype frequencies were determined for the STR (short tandem repeat) locus TPOX in a random Turkish population sample of 200 individuals.......Allele and genotype frequencies were determined for the STR (short tandem repeat) locus TPOX in a random Turkish population sample of 200 individuals....

  2. Locus of Control in Underachieving and Achieving Gifted Students.

    Science.gov (United States)

    McClelland, Robert; And Others

    1991-01-01

    This study, with 87 underachieving and 77 achieving gifted students in grades 6-9, found that general locus of control measures did not differentiate between the 2 groups, that both scored significantly higher on positive internal than on negative internal locus of control, and that there were no gender or grade effects. (Author/DB)

  3. Biochemical detection of E-ADA on Neospora caninum tachyzoites and the effects of a specific enzymatic inhibitor

    Directory of Open Access Journals (Sweden)

    Alexandre A. Tonin

    2015-01-01

    Full Text Available Objective. This study aimed to investigate the presence and activity of the ecto adenosine deaminase (E-ADA enzyme in tachyzoites of Neospora caninum (Nc-1 strain, as well as to assess the activity of a well-known E-ADA inhibitor, the deoxycoformycin. Materials and methods. The parasites were grown in cell culture, being subsequently separated in a pellet of tachyzoites, on which the E-ADA activity was tested using the concentrations 0 (control, 0.2, 0.4 and 0.8 mg mL-1. Results. The E-ADA showed high activity, progressively increasing its activity according to the enhancement of the protein concentration. The test was carried out with different concentrations of deoxycoformycin, showing that it was able to inhibit the E-ADA present on the free form of the parasite. Conclusions. Based on these results we conclude that the E-ADA is present on tachyzoites of N. caninum, and deoxycoformycin is able to inhibit this enzyme. In this sense, knowing the negative impact of N. caninum on reproductive issue in cattle (mainly abortion, might it is an alternative in order to deal with this parasitic infection.

  4. Effects of preferred retinal locus placement on text navigation and development of advantageous trained retinal locus.

    Science.gov (United States)

    Watson, Gale R; Schuchard, Ronald A; De l'Aune, William R; Watkins, Erica

    2006-01-01

    Sixty readers were evaluated for visual function and text-navigation ability. The visual field and preferred retinal locus (PRL) were measured with a scanning laser ophthalmoscope (SLO). We found significant differences in text-navigation ability based on scotoma and PRL placement. Readers with a PRL to the left of or above a scotoma had significantly less text-navigation abilities. Readers with a PRL to the left of a scotoma tended to misread words with similar beginnings and omit the last word on a line. Readers with a PRL above a scotoma tended to skip a line or reread the same line twice. In a follow-up study, seven subjects with a nonadvantageous PRL quickly developed a trained retinal locus (TRL) during instruction with an SLO. Although the readers developed the TRL in about 15 minutes, they read slower with the TRL than the PRL. This TRL research provides promising pilot data.

  5. Escala de Locus de controle ELCO/TELEBRÁS Scale of Locus of control - ELCO

    Directory of Open Access Journals (Sweden)

    Luiz Pasquali

    1998-01-01

    Full Text Available Com base na teoria de Rotter e Escala de Levenson foi elaborada uma escala de Locus de Controle Organizacional (ELCO, composta por 28 itens. A escala foi validada com uma amostra de 350 empregados do Sistema Telebrás. Verificou-se a presença dos 2 fatores previstos na teoria, a saber: internalidade e externalidade, aparecendo a escala de externalidade, com 18 itens, bem estruturada (alfa = 0.81 e a de internalidade, com 10 itens, deixando a desejar no que se refere à consistência interna (alfa = 0.66. Com os dados desta pesquisa foi feita também análise do Locus de Controle desses mesmos empregados. A constatação mais saliente foi a de que o nível de internalidade caiu com o aumento do nível escolar e o aumento da experiência profissional desses mesmos empregados. Estes resultados surpreendentes foram interpretados em termos da situação típica da empresa, que está passando por um período de transição, a saber: a passagem da condição de empresa estatal para empresa privada, o que seria motivo da perda de confiança dos empregados na própria competência, particularmente por parte daqueles com maior competência intelectual e maior experiência profissional. Fez-se igualmente reparos na qualidade psicométrica da escala e da própria teoria do Locus de controle, no sentido de que esta precisa ser melhor axiomatizada para possibilitar a elaboração de escalas mais precisas para a medida dos construtos que propõe.A scale with 28 items, the Organizational Locus of Control (ELCO, was built based on Rotter’s theory and Levenson’s scale. ELCO was validated on a sample of 350 employees of Telebrás, a governmental firm in Brazil. As foreseen from the theory, a principal-axis factoring showed the presence of the expected two factors, namely internal and external locus of control. The external locus of control factor, composed of 18 items, showed good internal consistency (alpha =.81 whereas the internal factor, with 10 items

  6. Regulatory cross-talk in the double par locus of plasmid pB171

    DEFF Research Database (Denmark)

    Ringgaard, Simon; Ebersbach, Gitte; Borch, Jonas;

    2007-01-01

    partition and promoter repression complexes. Surprisingly, ParB repressed transcription of the noncognate par operon, indicating cross-talk and possibly epistasis between the two systems. The par promoters, P1 and P2, affected each other negatively. The DNA binding activities of ParR and ParB correlated...

  7. Regulatory hotspots in the malaria parasite genome dictate transcriptional variation.

    Directory of Open Access Journals (Sweden)

    Joseph M Gonzales

    2008-09-01

    Full Text Available The determinants of transcriptional regulation in malaria parasites remain elusive. The presence of a well-characterized gene expression cascade shared by different Plasmodium falciparum strains could imply that transcriptional regulation and its natural variation do not contribute significantly to the evolution of parasite drug resistance. To clarify the role of transcriptional variation as a source of stain-specific diversity in the most deadly malaria species and to find genetic loci that dictate variations in gene expression, we examined genome-wide expression level polymorphisms (ELPs in a genetic cross between phenotypically distinct parasite clones. Significant variation in gene expression is observed through direct co-hybridizations of RNA from different P. falciparum clones. Nearly 18% of genes were regulated by a significant expression quantitative trait locus. The genetic determinants of most of these ELPs resided in hotspots that are physically distant from their targets. The most prominent regulatory locus, influencing 269 transcripts, coincided with a Chromosome 5 amplification event carrying the drug resistance gene, pfmdr1, and 13 other genes. Drug selection pressure in the Dd2 parental clone lineage led not only to a copy number change in the pfmdr1 gene but also to an increased copy number of putative neighboring regulatory factors that, in turn, broadly influence the transcriptional network. Previously unrecognized transcriptional variation, controlled by polymorphic regulatory genes and possibly master regulators within large copy number variants, contributes to sweeping phenotypic evolution in drug-resistant malaria parasites.

  8. Low Cost Upper Atmosphere Sounder (LOCUS)

    Science.gov (United States)

    Gerber, Daniel; Swinyard, Bruce M.; Ellison, Brian N.; Aylward, Alan D.; Aruliah, Anasuya; Plane, John M. C.; Feng, Wuhu; Saunders, Christopher; Friend, Jonathan; Bird, Rachel; Linfield, Edmund H.; Davies, A. Giles; Parkes, Steve

    2014-05-01

    near future. We describe the current instrument configuration of LOCUS, and give a first preview of the expected science return such a mission would yield. The LOCUS instrument concept calls for four spectral bands, a first band at 4.7 THz to target atomic oxygen (O), a second band at 3.5 THz to target hydroxyl (OH), a third band at 1.1 THz to cover several diatomic species (NO, CO, O3, H2O) and finally a fourth band at 0.8 THz to retrieve pointing information from molecular oxygen (O2). LOCUS would be the first satellite instrument to measure atomic oxygen on a global scale with a precision that will allow the retrieval of the global O distribution. It would also be the first time that annual and diurnal changes in O are measured. This will be a significant step forward in understanding the chemistry and dynamics of the MLT. Current indications (derived from CRISTA measurement) lead us to believe that current models only give a poor representation of upper atmospheric O. The secondary target species can help us to address additional scientific questions related to both Climate (distribution of climate relevant gases, highly geared cooling of the MLT in response to Climate change, increased occurrence of Polar Mesospheric Clouds (PMC), etc) and Space Weather (precipitation of electrically charged particles and impact on NOx chemistry, fluctuations of solar Lyman-alpha flux through shown in the the distribution of photochemically active species, etc).

  9. EL LOCUS DE DISTRIBUCION COMO COROLARIO DEL LOCUS DE CONTROL (THE LOCUS OF DISTRIBUTION AS A COROLLARY TO THE LOCUS OF CONTROL

    Directory of Open Access Journals (Sweden)

    Mayoral Luisa

    2009-08-01

    Full Text Available Resumen: Este es un artículo científico acerca del Locus de Distribución, surgido de un estudio realizado con una población de docentes y alumnos universitarios. Respecto de los primeros, se ha indagado acerca de las atribuciones que se realizaban en torno a las recompensas y sanciones, que ellos distribuían a sus alumnos.Respecto de los segundos, se ha buscado determinar la valoración que estos realizaban de sus profesores, en términos de aquellas atribuciones. Para ello, se utilizaron dos paradigmas clásicamente empleados para verificar la existencia de una norma: el paradigma de la autopresentación (docentes, y el paradigma de los j uicios (alumnos. La cuestión planteada fue determinar si en el caso de los comportamientos distributivos de refuerzos, las causas se atribuían a variables externas -en particular a los receptores de esos refuerzos- y si esas formas de atribución eran conocidas y valoradas o no, por los alumnos. De los resultados, surgió la confirmación de nuestra hipótesis de explicaciones externas en materia de comportamientos distributivos de sanciones en el ámbito de la docencia y la valoración positiva de estas atribuciones por los alumnos.Abstract:This one is a scientific article brings over of the Locus of Distribution, arisen from a study realized with a population of teachers and university pupils. Respect of the first ones, it has been investigated brings over of the attributions that were concerning around the reinforcements which they were distributing to pupils. Respect of the second ones, one has sought to determine the valuation that these realized of the teachers, in terms of those attributions. For it, two paradigms were in use classic used to check the existence of a norm: the paradigm of the auto-presentation (teachers, and the paradigm of the judgments (pupils The raised question was to determine if in case of the distributive behaviours of reinforcements, the reasons were assuming to external

  10. Seed specific expression and analysis of recombinant human adenosine deaminase (hADA) in three host plant species.

    Science.gov (United States)

    Doshi, Ketan M; Loukanina, Natalia N; Polowick, Patricia L; Holbrook, Larry A

    2016-10-01

    The plant seed is a leading platform amongst plant-based storage systems for the production of recombinant proteins. In this study, we compared the activity of human adenosine deaminase (hADA) expressed in transgenic seeds of three different plant species: pea (Pisum sativum L.), Nicotiana benthamiana L. and tarwi (Lupinus mutabilis Sweet). All three species were transformed with the same expression vector containing the hADA gene driven by the seed-specific promoter LegA2 with an apoplast targeting pinII signal peptide. During the study, several independent transgenic lines were generated and screened from each plant species and only lines with a single copy of the gene of interest were used for hADA expression analysis. A stable transgenic canola line expressing the ADA protein, under the control of 35S constitutive promoter was used as both as a positive control and for comparative study with the seed specific promoter. Significant differences were detected in the expression of hADA. The highest activity of the hADA enzyme (Units/g seed) was reported in tarwi (4.26 U/g) followed by pea (3.23 U/g) and Nicotiana benthamiana (1.69 U/g). The expression of mouse ADA in canola was very low in both seed and leaf tissue compared to other host plants, confirming higher activity of seed specific promoter. Altogether, these results suggest that tarwi could be an excellent candidate for the production of valuable recombinant proteins.

  11. Genetic Organization of the citCDEF Locus and Identification of mae and clyR Genes from Leuconostoc mesenteroides

    OpenAIRE

    Bekal-Si Ali, Sadjia; Diviès, Charles; Prévost, Hervé

    1999-01-01

    In this paper, we describe two open reading frames coding for a NAD-dependent malic enzyme (mae) and a putative regulatory protein (clyR) found in the upstream region of citCDEFG of Leuconostoc mesenteroides subsp. cremoris 195. The transcriptional analysis of the citrate lyase locus revealed one polycistronic mRNA covering the mae and citCDEF genes. This transcript was detected only on RNA prepared from cells grown in the presence of citrate. Primer extension experiments suggest that clyR an...

  12. Americans With Disabilities Act (ADA) Accessibility Guidelines for Transportation Vehicles. Final rule.

    Science.gov (United States)

    2016-12-14

    The Architectural and Transportation Barriers Compliance Board (Access Board or Board) is issuing a final rule that revises its existing accessibility guidelines for non-rail vehicles--namely, buses, over-the-road buses, and vans--acquired or remanufactured by entities covered by the Americans with Disabilities Act. The revised guidelines ensure that such vehicles are readily accessible to, and usable by, individuals with disabilities. The U.S. Department of Transportation (DOT) is required to revise its accessibility standards for transportation vehicles acquired or remanufactured by entities covered by the Americans with Disabilities Act (ADA) to be consistent with the final rule.

  13. Libertad soñada y libertad concreta en la época ilustrada

    OpenAIRE

    Bello Reguera, Eduardo

    1994-01-01

    ¿Ha inventado la libertad el siglo XVIII? El análisis, que podría hacerse desde la triple experiencia de la libertad artística, "libertina" y política, se limita aquí al examen de esta última tanto desde la perspectiva de la Revolución Gloriosa teorizada por Locke en Two Essays of Government, como desde la experiencia de la Revolución Francesa, anticipada teóricamente en Du contrat social, así como desde la perspectiva de la "meta soñada" prevista por Kant. Is freedom an XVIIIth Century in...

  14. Acerca de lo divino en la "Orestíada" de Esquilo

    OpenAIRE

    David E. Morales Troncoso

    2006-01-01

    La única trilogía completa que se conserva de Esquilo, la "Orestíada", es fundamental para comprender la evolución del concepto y de la institución de justicia en relación con hechos de sangre. En la presente interpretación se busca recrear esta tragedia clásica desde la perspectiva de la participación de las personalidades divinas, que terminan siendo los agentes fundamentales en la resolución del Mito. (The only complete trilogy of Aeschylus, the "Oresteia", is a key to understand the evolu...

  15. Resultados del tratamiento a pacientes con tríada terrible del codo

    OpenAIRE

    Héctor Gabriel Díaz Carrillo; William Álvarez Consuegra; Michel Quevedo Pérez

    2015-01-01

    La luxación del codo, asociada a la fractura del proceso coronoideo y a la fractura de la cabeza radial, es denominada “tríada terrible del codo”, debido a la complejidad al abordar el tratamiento correcto y lo desalentador de los resultados que se obtienen con el mismo. Se realizó un estudio prospectivo, donde se recogen los resultados postoperatorios, obtenidos en cuatro pacientes con inestabilidad traumática aguda del codo, tratados entre enero de 2012 y mayo de 2013, que acudieron inicial...

  16. An Ada Linear-Algebra Software Package Modeled After HAL/S

    Science.gov (United States)

    Klumpp, Allan R.; Lawson, Charles L.

    1990-01-01

    New avionics software written more easily. Software package extends Ada programming language to include linear-algebra capabilities similar to those of HAL/S programming language. Designed for such avionics applications as Space Station flight software. In addition to built-in functions of HAL/S, package incorporates quaternion functions used in Space Shuttle and Galileo projects and routines from LINPAK solving systems of equations involving general square matrices. Contains two generic programs: one for floating-point computations and one for integer computations. Written on IBM/AT personal computer running under PC DOS, v.3.1.

  17. EASY-SIM: A Visual Simulation System Software Architecture with an ADA 9X Application Framework

    Science.gov (United States)

    1994-12-01

    P, =,c- ad C-at John Vanderburgh also helped keep my head above water. Four employees of Silicon Graphics, Inc. provided the tools for me to use Ada... devop -_ ment of software systems within a domain. Because an architecture promotes reuse at the design level, systems developers do not have to devote...de- briefing tool for the Air Force’s Red Flag,.. ,ex.rce - ,ar,,o, J. Talte,2,)-%a 1 gives the details of the research projects completed in 1993

  18. An Evaluation of an Ada Implementation of the Rete Algorithm for Embedded Flight Processors

    Science.gov (United States)

    1990-12-01

    assert rule I running at a higher salience than the retract rule. This assert rule makes use of the CLIPS/Ada GENSYM function to generate new object...names. GENSYM concatenates an incremented symbol count to the string "gen" (e.g. successive calls to GENSYM might 3 produce genl, gen2, gen3,...). This...is offset by the use of the GENSYM function, which generated the distinct object names. The offset is 3 evident when comparing the performances of the

  19. Ilíada, um terreno de glória

    OpenAIRE

    2005-01-01

    Un poema épico, de expresión fundamentalmente masculina y militar, como la Ilíada, sitúa la noción de gloria entre los principios sólidos que alimentan el ánimo guerrero y que estimulan la valentía al servicio de su propia salvación y la de los suyos. Alcanzarla exige esfuerzo y solidaridad, y, al mismo tiempo, produce enormes compensaciones; por la gloria, el ser humano conquista la consideración de quienes lo rodean y, sobre todo, es así como sobrepasa su propia transitoriedad. Es éste el p...

  20. Regulatory guidance document

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-05-01

    The Office of Civilian Radioactive Waste Management (OCRWM) Program Management System Manual requires preparation of the OCRWM Regulatory Guidance Document (RGD) that addresses licensing, environmental compliance, and safety and health compliance. The document provides: regulatory compliance policy; guidance to OCRWM organizational elements to ensure a consistent approach when complying with regulatory requirements; strategies to achieve policy objectives; organizational responsibilities for regulatory compliance; guidance with regard to Program compliance oversight; and guidance on the contents of a project-level Regulatory Compliance Plan. The scope of the RGD includes site suitability evaluation, licensing, environmental compliance, and safety and health compliance, in accordance with the direction provided by Section 4.6.3 of the PMS Manual. Site suitability evaluation and regulatory compliance during site characterization are significant activities, particularly with regard to the YW MSA. OCRWM`s evaluation of whether the Yucca Mountain site is suitable for repository development must precede its submittal of a license application to the Nuclear Regulatory Commission (NRC). Accordingly, site suitability evaluation is discussed in Chapter 4, and the general statements of policy regarding site suitability evaluation are discussed in Section 2.1. Although much of the data and analyses may initially be similar, the licensing process is discussed separately in Chapter 5. Environmental compliance is discussed in Chapter 6. Safety and Health compliance is discussed in Chapter 7.

  1. Locus of control and cerebral asymmetry.

    Science.gov (United States)

    De Brabander, B; Boone, C; Gerits, P

    1992-08-01

    Data about the lack of synchronism of flexor carpi ulnaris peak EMG values of bimanual reactions during a semantic and during a visuospatial discrimination reaction time task are reported. The effects of type of task as well as the presence or absence of an unexpected stimulus preceding the reaction stimulus on lack of synchronism clearly depend upon the locus of control of the subjects, as measured on Rotter's I-E scale. On the basis of several arguments it is proposed that the measure of lack of synchronism reflects in an opposite sense the amount of dopaminergic activation or motor readiness in the sense in which Pribram and McGuinness in 1975 and Tucker and Williamson in 1984 have defined these concepts. The results for 15 women and 18 men show that more internally oriented subjects are more activated by a semantic task and by an unexpected preparatory stimulus in this type of task than more externally oriented subjects. The opposite appears to hold on the visuospatial task and unexpected preparatory stimuli therein. Together with earlier findings about reaction times and a number of relevant findings in the literature, the results are interpreted as indicative of basic differences in asymmetric tonic activation of the cerebral hemispheres between more internally and more externally oriented subjects. A model is proposed to explain phasic activating effects which ensue when tonically more left- or right-activated subjects perform left- or right-hemisphere tasks and when supplementary irrelevant stimuli are received.

  2. Differential expression of polycytosine-binding protein isoforms in adrenal gland, locus coeruleus and midbrain.

    Science.gov (United States)

    Boschi, N M; Takeuchi, K; Sterling, C; Tank, A W

    2015-02-12

    Polycytosine-binding proteins (PCBPs) are RNA-binding proteins that participate in post-transcriptional control pathways. Among the diverse functions of these proteins is the interaction with a 27 nucleotide pyrimidine-rich domain within the 3'UTR of tyrosine hydroxylase (TH) mRNA. Mutations to this domain result in decreased stability of TH mRNA and loss of cAMP-mediated activation of TH mRNA translation. PCBPs are hypothesized to play key roles in these regulatory mechanisms. In order to further test this hypothesis, we examined the tissue distribution of PCBPs in catecholaminergic cells. Initial studies demonstrated that proteins from catecholaminergic tissues bind to TH mRNA 3'UTR sequences and these proteins have an apparent Mr of ∼ 44 kDa, which is close to the molecular sizes for PCBPs. Fluorescent immunohistochemistry and confocal microscopy was used to analyze the distribution of PCBP isoforms in TH-positive cells of the rat midbrain, locus coeruleus, and adrenal gland. Our results suggest that: (1) PCBP2 is the predominant isoform in TH-positive cells of the rat midbrain; (2) PCBP3 is the predominant isoform in TH-positive cells of the locus coeruleus; and (3) PCBP1 is the predominant isoform in the adrenal medulla. The localization of PCBP proteins to TH-positive cells in these catecholaminergic tissues is consistent with the hypothesis that PCBPs play a role in the regulation of TH expression.

  3. LOCUS OF CONTROL AND JOB SATISFACTION: PSU EMPLOYEES

    Directory of Open Access Journals (Sweden)

    Lakshman Vijayashree

    2011-11-01

    Full Text Available Previous research studies have demonstrated that internal/external locus of control impacts jobsatisfaction. The present study thus aims to analyze type of locus of control and its relation with jobsatisfaction. The study will be of great help for organization to understand and know what type oflocus of control their employees has and how it has an impact on job satisfaction.The objectives of this study were: 1- To identify the type of Locus of Control (i.e. Internal orExternal present in Public Sector Units (PSU in Bangalore and 2- To analyze the impact of differenttype of Locus of Control on job satisfaction of PSU Employees. Further hypothesis was also set tocheck the relationship between locus of control and job satisfaction. In addition, the relationshipbetween different demographic factors was also examined. The tool used for this study was LocoInventory. The concept of locus of control by Levenson (1972 was used to develop Loco Inventory(Locus of Control in Organization Inventory. The survey used a questionnaire, which had thirty fivestatements which highlights the factors that determine the locus of control and job satisfaction levelof the employees. The Ratio, ANOVA, and Correlation analysis were used as statistical techniquesfor analysis.The results indicate that there is a positive correlation between internal locus of control and jobsatisfaction as well as between External (other locus of control and job satisfaction. And in case ofExternal (Chance locus of control and job satisfaction there exists partial positive correlation. As perthis study Job satisfaction level among the employees is also good as the mean is 17, which is closerto maximum scale value of 25. As per ANOVA table there is a significant variance betweeninternality and age as well as between externality (chance and age. There is no significantrelationship between internality and demographic factors like gender and education. There is nosignificant relationship between

  4. NRC regulatory initiatives

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, T.C. [Nuclear Regulatory Commission (United States)

    1989-11-01

    The US Nuclear Regulatory Commission (NRC) is addressing several low-level waste disposal issues that will be important to waste generators and to States and Compacts developing new disposal capacity. These issues include Greater-Than-Class C (GTCC) waste, mixed waste, below regulatory concern (BRC) waste, and the low-level waste data base. This paper discusses these issues and their current status.

  5. Generic Ada code in the NASA space station command, control and communications environment

    Science.gov (United States)

    Mcdougall, D. P.; Vollman, T. E.

    1986-01-01

    The results of efforts to apply powerful Ada constructs to the formatted message handling process are described. The goal of these efforts was to extend the state-of-technology in message handling while at the same time producing production-quality, reusable code. The first effort was initiated in September, 1984 and delivered in April, 1985. That product, the Generic Message Handling Facility, met initial goals, was reused, and is available in the Ada Repository on ARPANET. However, it became apparent during its development that the initial approach to building a message handler template was not optimal. As a result of this initial effort, several alternate approaches were identified, and research is now on-going to identify an improved product. The ultimate goal is to be able to instantly build a message handling system for any message format given a specification of that message format. The problem lies in how to specify the message format, and one that is done, how to use that information to build the message handler. Message handling systems and message types are described. The initial efforts, its results and its shortcomings are detailed. The approach now being taken to build a system which will be significantly easier to implement, and once implemented, easier to use, is described. Finally, conclusions are offered.

  6. Integrating automated structured analysis and design with Ada programming support environments

    Science.gov (United States)

    Hecht, Alan; Simmons, Andy

    1986-01-01

    Ada Programming Support Environments (APSE) include many powerful tools that address the implementation of Ada code. These tools do not address the entire software development process. Structured analysis is a methodology that addresses the creation of complete and accurate system specifications. Structured design takes a specification and derives a plan to decompose the system subcomponents, and provides heuristics to optimize the software design to minimize errors and maintenance. It can also produce the creation of useable modules. Studies have shown that most software errors result from poor system specifications, and that these errors also become more expensive to fix as the development process continues. Structured analysis and design help to uncover error in the early stages of development. The APSE tools help to insure that the code produced is correct, and aid in finding obscure coding errors. However, they do not have the capability to detect errors in specifications or to detect poor designs. An automated system for structured analysis and design TEAMWORK, which can be integrated with an APSE to support software systems development from specification through implementation is described. These tools completement each other to help developers improve quality and productivity, as well as to reduce development and maintenance costs. Complete system documentation and reusable code also resultss from the use of these tools. Integrating an APSE with automated tools for structured analysis and design provide capabilities and advantages beyond those realized with any of these systems used by themselves.

  7. The subsurface geology along the route of the new bridge at Ada Ciganlija Island (Belgrade, Serbia

    Directory of Open Access Journals (Sweden)

    Knežević Slobodan

    2012-01-01

    Full Text Available The largest single-pylon, cable-stayed bridge in the world was opened in Belgrade on January 1, 2012 and it passes over the tip of the Ada Ciganlija Island. Its monumentality, architectural design and construction innovations became a new symbol of Belgrade. Core samples from the boreholes drilled for the construction of the bridge revealed a relatively complex subsurface geological structure. An Upper Cretaceous-Paleogene flysch formation and Middle Miocene Sarmatian sediments were found near the surface on the right bank of the Sava River. However, at the tip of Ada Ciganlija, the Upper Cretaceous-Palaeogene flysch strata were found below several different Miocene and Quaternary units. In the deepest borehole DB-6, the flysch deposits were found at a depth of 80 meters. On the left bank of the Sava River in New Belgrade, only Upper Miocene Pannonian marls and Pleistocene and Holocene alluvial deposits were drilled. Based on a comparative analysis of the borehole sections and structural characteristics of the rocks, it could be concluded that the Pre-Quaternary units cascade subsided along sub-parallel faults towards N-NW. [Projekat Ministarstva nauke Republike Srbije, br. 176015

  8. Plantio direto de alface americana sobre plantas de cobertura dessecadas ou roçadas

    Directory of Open Access Journals (Sweden)

    Andréia Cristina Silva Hirata

    2014-06-01

    Full Text Available O objetivo deste trabalho foi avaliar o plantio direto de alface americana no verão sobre plantas de cobertura dessecadas ou roçadas em cultivos sucessivos. O trabalho foi desenvolvido no município de Álvares Machado, São Paulo, Brasil. O delineamento experimental foi em blocos ao acaso, dispostos em parcelas subdivididas, com quatro repetições. O fator da parcela principal foram dois manejos das plantas de cobertura (dessecadas com herbicida ou roçadas e as subparcelas, seis espécies de plantas de cobertura (Cajanus cajan cv. IAPAR 43, Crotalaria spectabilis, Crotalaria juncea, Mucuna pruriens, Pennisetum glaucum e vegetação natural, além da testemunha sem plantas de cobertura. O manejo roçado apresentou desempenho inferior no primeiro cultivo da alface, todavia não diferiu do manejo químico no segundo cultivo. A cobertura do solo com mucuna apresentou maior produtividade da alface no primeiro cultivo devido ao excesso de palha das demais coberturas, o qual prejudicou o estabelecimento da alface. No segundo cultivo não houve diferenças entre as coberturas. A roçagem de plantas de cobertura é uma opção viável para plantio direto de alface sem herbicidas.

  9. Molecular analysis of the glucocerebrosidase gene locus

    Energy Technology Data Exchange (ETDEWEB)

    Winfield, S.L.; Martin, B.M.; Fandino, A. [Clinical Neuroscience Branch, Bethesda, MD (United States)] [and others

    1994-09-01

    Gaucher disease is due to a deficiency in the activity of the lysosomal enzyme glucocerebrosidase. Both the functional gene for this enzyme and a pseudogene are located in close proximity on chromosome 1q21. Analysis of the mutations present in patient samples has suggested interaction between the functional gene and the pseudogene in the origin of mutant genotypes. To investigate the involvement of regions flanking the functional gene and pseudogene in the origin of mutations found in Gaucher disease, a YAC clone containing DNA from this locus has been subcloned and characterized. The original YAC containing {approximately}360 kb was truncated with the use of fragmentation plasmids to about 85 kb. A lambda library derived from this YAC was screened to obtain clones containing glucocerebrosidase sequences. PCR amplification was used to identify subclones containing 5{prime}, central, or 3{prime} sequences of the functional gene or of the pseudogene. Clones spanning the entire distance from the last exon of the functional gene to intron 1 of the pseudogene, the 5{prime} end of the functional gene and 16 kb of 5{prime} flanking region and approximately 15 kb of 3{prime} flanking region of the pseudogene were sequenced. Sequence data from 48 kb of intergenic and flanking regions of the glucocerebrosidase gene and its pseudogene has been generated. A large number of Alu sequences and several simple repeats have been found. Two of these repeats exhibit fragment length polymorphism. There is almost 100% homology between the 3{prime} flanking regions of the functional gene and the pseudogene, extending to about 4 kb past the termination codons. A much lower degree of homology is observed in the 5{prime} flanking region. Patient samples are currently being screened for polymorphisms in these flanking regions.

  10. [Health locus of control of patients in disease management programmes].

    Science.gov (United States)

    Schnee, M; Grikscheit, F

    2013-06-01

    Health locus of control beliefs plays a major role in improving self-management skills of the chronically ill - a main goal in disease management programmes (DMP). This study aims at characterising participants in disease management regarding their health locus of control. Data are based on 4 cross-sectional postal surveys between spring and autumn of 2006 and 2007 within the Health Care Monitor of the Bertelsmann Foundation. Among the 6 285 respondents, 1 266 are chronically ill and not enrolled in a DMP and 327 are participating in a DMP. A high internal locus of control (HLC) occurs significantly less often in DMP patients than in normal chronically ill patients (and healthy people) controlling for age, gender and social class. With increasing age, a high internal locus of control is also significantly less likely. When comparing healthy people, the chronically ill and the DMP participants a social gradient of a high internal locus of control belief can be observed. The weaker internal and higher doctor-related external locus of control of DMP participants should be carefully observed by the physician when trying to strengthen the patients' self-management skills. Evaluators of DMP should take into account the different baselines of DMP patients and relevant control groups and incorporate these differences into the evaluation.

  11. Neurolinguistic programming training, trait anxiety, and locus of control.

    Science.gov (United States)

    Konefal, J; Duncan, R C; Reese, M A

    1992-06-01

    Training in the neurolinguistic programming techniques of shifting perceptual position, visual-kinesthetic dissociation, timelines, and change-history, all based on experiential cognitive processing of remembered events, leads to an increased awareness of behavioral contingencies and a more sensitive recognition of environmental cues which could serve to lower trait anxiety and increase the sense of internal control. This study reports on within-person and between-group changes in trait anxiety and locus of control as measured on the Spielberger State-Trait Anxiety Inventory and Wallston, Wallston, and DeVallis' Multiple Health Locus of Control immediately following a 21-day residential training in neurolinguistic programming. Significant with-in-person decreases in trait-anxiety scores and increases in internal locus of control scores were observed as predicted. Chance and powerful other locus of control scores were unchanged. Significant differences were noted on trait anxiety and locus of control scores between European and U.S. participants, although change scores were similar for the two groups. These findings are consistent with the hypothesis that this training may lower trait-anxiety scores and increase internal locus of control scores. A matched control group was not available, and follow-up was unfortunately not possible.

  12. Transcription is required to establish maternal imprinting at the Prader-Willi syndrome and Angelman syndrome locus.

    Directory of Open Access Journals (Sweden)

    Emily Y Smith

    2011-12-01

    Full Text Available The Prader-Willi syndrome (PWS [MIM 17620] and Angelman syndrome (AS [MIM 105830] locus is controlled by a bipartite imprinting center (IC consisting of the PWS-IC and the AS-IC. The most widely accepted model of IC function proposes that the PWS-IC activates gene expression from the paternal allele, while the AS-IC acts to epigenetically inactivate the PWS-IC on the maternal allele, thus silencing the paternally expressed genes. Gene order and imprinting patterns at the PWS/AS locus are well conserved from human to mouse; however, a murine AS-IC has yet to be identified. We investigated a potential regulatory role for transcription from the Snrpn alternative upstream exons in silencing the maternal allele using a murine transgene containing Snrpn and three upstream exons. This transgene displayed appropriate imprinted expression and epigenetic marks, demonstrating the presence of a functional AS-IC. Transcription of the upstream exons from the endogenous locus correlates with imprint establishment in oocytes, and this upstream exon expression pattern was conserved on the transgene. A transgene bearing targeted deletions of each of the three upstream exons exhibited loss of imprinting upon maternal transmission. These results support a model in which transcription from the Snrpn upstream exons directs the maternal imprint at the PWS-IC.

  13. Murine lupus susceptibility locus Sle1a requires the expression of two sub-loci to induce inflammatory T cells.

    Science.gov (United States)

    Cuda, C M; Zeumer, L; Sobel, E S; Croker, B P; Morel, L

    2010-10-01

    The NZM2410-derived Sle1a lupus susceptibility locus induces activated autoreactive CD4(+) T cells and reduces the number and function of Foxp3(+) regulatory T cells (Tregs). In this study, we first showed that Sle1a contributes to autoimmunity by increasing antinuclear antibody production when expressed on either NZB or NZW heterozygous genomes, and by enhancing the chronic graft versus host disease response indicating an expansion of the autoreactive B-cell pool. Screening two non-overlapping recombinants, the Sle1a.1 and Sle1a.2 intervals that cover the entire Sle1a locus, revealed that both Sle1a.1 and Sle1a.2 were necessary for the full Sle1a phenotype. Sle1a.1, and to a lesser extent Sle1a.2, significantly affected CD4(+) T-cell activation as well as Treg differentiation and function. Sle1a.2 also increased the production of autoreactive B cells. As the Sle1a.1 and Sle1a.2 intervals contain only 1 and 15 known genes, respectively, this study considerably reduces the number of candidate genes responsible for the production of autoreactive T cells. These results also show that the Sle1 locus is an excellent model for the genetic architecture of lupus, in which a major obligate phenotype results from the coexpression of multiple genetic variants with individual weak effects.

  14. Ada (trade name) Compiler Validation Summary Report: Rational Environment, Version A.2.0.6 for Rational R1000.

    Science.gov (United States)

    2014-09-26

    RD-Ali57 830 ADA (TRADE NAME) COMPILER VALIDATION SUMMARY REPORT: 1/ RATIONAL ENVIRONMENT VERSION R296 FOR RATIONAL Ri888 (U) SOFTECH INC FAIRBORN OH...USoCPY WSSOS.UTM iTS GWAT % : 4 AVF Control Number: AVF-VSR-09.0585 0 IAda Compiler Validation Summary Report: Rational Environment Version A.2.0.6 For...77. . 77-4- .- REPORT DOCUMENTATION PAGERED1S1IT0$ L~~~~ 1YP 0061 1tO REPORT 6 PL eDD COVERED Ada* Compiler Validation Summary Report: Rational May

  15. Concept Paper for the Development of a DoD Ada (Trademark) Software Engineering Education and Training Plan.

    Science.gov (United States)

    1984-11-01

    ET AL. NOV 34 UNCLASSIFIED IDA-M-7 IDA/HQ-84-28940 MDA903-84-C-8@3i F/G 9/2 I ommomm pa ,. 7 -7 7, -~ 7: 7 .2 oA 1. j5 2. a LIM ~ I .~ .2 d ’ 1111...planning 3.3 WEN: SCHEDUJNS ADA EDUCAION AND) TRAINING Teaching Ada culture will be a long term activity. Unless we are willing to accept programing in...Training NAS Pensacola, FL 32508 Others Dr. Pauline Jordan * •General Electric P.O. Box 8555/M1128 Philadelphia, PA 19101 Mr. Grady Boocn Rational

  16. The neuro-glial properties of adipose-derived adult stromal (ADAS cells are not regulated by Notch 1 and are not derived from neural crest lineage.

    Directory of Open Access Journals (Sweden)

    Philip C Wrage

    Full Text Available We investigated whether adipose-derived adult stromal (ADAS are of neural crest origin and the extent to which Notch 1 regulates their growth and differentiation. Mouse ADAS cells cultured in media formulated for neural stem cells (NSC displayed limited capacity for self-renewal, clonogenicity, and neurosphere formation compared to NSC from the subventricular zone in the hippocampus. Although ADAS cells expressed Nestin, GFAP, NSE and Tuj1 in vitro, exposure to NSC differentiation supplements did not induce mature neuronal marker expression. In contrast, in mesenchymal stem cell (MSC media, ADAS cells retained their ability to proliferate and differentiate beyond 20 passages and expressed high levels of Nestin. In neuritizing cocktails, ADAS cells extended processes, downregulated Nestin expression, and displayed depolarization-induced Ca(2+ transients but no spontaneous or evoked neural network activity on Multi-Electrode Arrays. Deletion of Notch 1 in ADAS cell cultures grown in NSC proliferation medium did not significantly alter their proliferative potential in vitro or the differentiation-induced downregulation of Nestin. Co-culture of ADAS cells with fibroblasts that stably expressed the Notch ligand Jagged 1 or overexpression of the Notch intracellular domain (NICD did not alter ADAS cell growth, morphology, or cellular marker expression. ADAS cells did not display robust expression of neural crest transcription factors or genes (Sox, CRABP2, and TH; and lineage tracing analyses using Wnt1-Cre;Rosa26R-lacZ or -EYFP reporter mice confirmed that fewer than 2% of the ADAS cell population derived from a Wnt1-positive population during development. In summary, although media formulations optimized for MSCs or NSCs enable expansion of mouse ADAS cells in vitro, we find no evidence that these cells are of neural crest origin, that they can undergo robust terminal differentiation into functionally mature neurons, and that Notch 1 is likely to be

  17. On the Concept of Cis-regulatory Information: From Sequence Motifs to Logic Functions

    Science.gov (United States)

    Tarpine, Ryan; Istrail, Sorin

    The regulatory genome is about the “system level organization of the core genomic regulatory apparatus, and how this is the locus of causality underlying the twin phenomena of animal development and animal evolution” (E.H. Davidson. The Regulatory Genome: Gene Regulatory Networks in Development and Evolution, Academic Press, 2006). Information processing in the regulatory genome is done through regulatory states, defined as sets of transcription factors (sequence-specific DNA binding proteins which determine gene expression) that are expressed and active at the same time. The core information processing machinery consists of modular DNA sequence elements, called cis-modules, that interact with transcription factors. The cis-modules “read” the information contained in the regulatory state of the cell through transcription factor binding, “process” it, and directly or indirectly communicate with the basal transcription apparatus to determine gene expression. This endowment of each gene with the information-receiving capacity through their cis-regulatory modules is essential for the response to every possible regulatory state to which it might be exposed during all phases of the life cycle and in all cell types. We present here a set of challenges addressed by our CYRENE research project aimed at studying the cis-regulatory code of the regulatory genome. The CYRENE Project is devoted to (1) the construction of a database, the cis-Lexicon, containing comprehensive information across species about experimentally validated cis-regulatory modules; and (2) the software development of a next-generation genome browser, the cis-Browser, specialized for the regulatory genome. The presentation is anchored on three main computational challenges: the Gene Naming Problem, the Consensus Sequence Bottleneck Problem, and the Logic Function Inference Problem.

  18. DNA-protein interaction at erythroid important regulatory elements of MEL cells by in vivo footprinting

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    Using ligation-mediated PCR method to study the status of DNA-protein interaction at hypersensitive site 2 of locus control Region and β maj promoter of MEL cell line before and after induction, MEL cell has been cultured and induced to differentiation by Hemin and DMSO, then the live cells have been treated with dimethyl sulfate. Ligation mediated PCR has been carried out following the chemical cleavage. The results demonstrate that before and after induction, the status of DNA-protein interaction at both hypersensitive site 2 and β maj promoter change significantly, indicating that distal regulatory elements (locus control region, hypersensitive sites) as well as proximal regulatory elements (promoter, enhancer) of β -globin gene cluster participate in the regulation of developmental specificity.

  19. Aportes a la cronología del Sitio 1 de Cañada Honda (partido de Baradero, provincia de Buenos Aires Contributions to the chronology of Cañada Honda Site 1, Baradero, Buenos Aires province

    Directory of Open Access Journals (Sweden)

    Sonia L Lanzelotti

    2011-12-01

    Full Text Available Se presentan dos dataciones radiocarbónicas para el Sitio 1 de Cañada Honda (partido de Baradero, provincia de Buenos Aires. Ambas se realizaron sobre restos óseos de Lama guanicoe de la Colección Cañada Honda del Museo Carlos Ameghino de Mercedes. Los fechados dieron 2030 ± 100 y 2130 ± 60 años C 14 AP. Se discuten estas edades en relación con la historia geomorfológica del lugar donde se emplaza el sitio y con el marco cronológico de las ocupaciones humanas del área.Two radiocarbon dates from Cañada Honda Site 1, Baradero, Buenos Aires province, are presented. Both were taken from bone remains of Lama guanicoe from the Cañada Honda collection of the Carlos Ameghino Museum, Mercedes. Dates of 2030 ± 100 and 2130 ± 60 C 14 years BP were obtained and are discussed in relation to the local geomorphology and chronology of the human occupation of the area.

  20. 基于AdaBoost与BP神经网络增量学习的手机用户分类预测%Mobile Phone Users Classification Forecast Based on AdaBoost and BP Neural Network Incremental Learning

    Institute of Scientific and Technical Information of China (English)

    张冉

    2011-01-01

    随着3G网络的全面普及,手机广告目前已逐渐成为商家抢占市场的一种营销手段,但手机广告投放的精准性是目前比较突出的一个问题。本文介绍了BP神经网络以及AdaBoost算法的基本原理,研究了应用AdaBoost结合BP神经网络算法的增量学习模型,该模型基于用户历史点击记录来预测手机用户感兴趣的广告类别,以提高手机广告投放的精准度。%With the overall popularity of 3G networks,mobile advertising business has become a marketing tool to seize the market,but the precise nature of mobile advertising is a more prominent issue.This article describes the BP neural network and the basic principles of AdaBoost algorithm to study the application of BP neural network algorithm AdaBoost with incremental learning model that records based on user click history to predict the mobile phone users are interested in advertising categories,in order to improve the mobile advertising the accuracy.

  1. 基于AdaBoost算法和光流匹配的实时手势识别%Real-time Gesture Recognition Based on AdaBoost Algorithm and Optical Flow Matching

    Institute of Scientific and Technical Information of China (English)

    王凯; 于鸿洋; 张萍

    2012-01-01

    着眼于更宽泛和更便捷的应用需要,提出了基于AdaBoost算法和光流匹配的实时手势识别方案.只需连接到计算机的摄像头读取二维手势视频片段就能对手势作为较为准确的识别.其中,采用AdaBoost算法遍历图像,完成静态手势的识别工作;在动态手势的识别过程中,运用了光流法结合模板匹配的方法.整个系统对静态和动态手势的识别均具有较强的鲁棒性.%Focusing on more general and more convenient application, a novel real-time gesture recognition method based on AdaBoost algorithm and optical flow matching was put forward. In detail, the AdaBoost algorithm was used to traverse the whole image for the recognition of static gestures. As to the dynamic gestures, the method combining optical flow with template matching was utilized. The whole system has strong robustness in the recognition of both static and dynamic gestures.

  2. Chromatin structure, epigenetic mechanisms and long-range interactions in the human insulin locus.

    Science.gov (United States)

    Xu, Z; Lefevre, G M; Felsenfeld, G

    2012-10-01

    Regulation of gene expression in eukaryotes is largely dependent on variations in chromatin structure. More recently, it has become clear that this may involve not only local chromatin organization but also distant regulatory elements that participate in large-scale chromatin architecture within the nucleus. We describe recent methods that make possible the detection of such structures and apply them to analysis of the human insulin (INS) locus in pancreatic islets. We show that the INS gene is part of an extended 'open' chromatin domain that includes adjacent genes as well. We also find that in islets, the INS promoter is in physical contact with distant sites on the same human chromosome and notably, with the SYT8 gene, located nearly 300 kb away. The strength of the contact between INS and SYT8 is increased by glucose, and this results in stimulation of SYT8 expression. Inhibition of INS transcription decreases SYT8 expression. Furthermore, downregulation of SYT8 results in decreased secretion of insulin. Our results thus establish the existence of a regulatory network between the INS gene and other distant genes through long-range physical interactions, and suggest that such networks may have general importance for insulin biology and diabetes.

  3. ADA 和 CRP 在结核性脑膜炎和化脓性脑膜炎诊断中的应用%Application of ADA and CRP in the Diagnosis of Tuberculous Meningitis and Purulent Meningitis

    Institute of Scientific and Technical Information of China (English)

    黄赟; 黄仕辉; 徐荣金

    2016-01-01

    Objective Through the detection of meningitis patients blood and CSF (cerebrospinal fluid)in Ada (ADA)con-tent detected at the same time,blood CRP (C -reactive protein)content,for differential diagnosis of tuberculous meningitis and purulent meningitis.Method The blood and cerebrospinal fluid of patients with tuberculous meningitis and purulent meningitis in our hospital were detected by ADA and CRP.Meanwhile,The detection results of ADA and CRP were compared and analyzed with the control group of virus and other meningitis.Results By comparing the tuberculous and pyogenic meningitis and the con-trol group,blood and CSF of ADA content was significantly higher in patients with tuberculous meningitis,and the difference was quite obvious.When P <0.05,there was statistic significance;compared with tuberculousmeningitis and matched groups,CPR content in the blood of Purulen meningitis patient was obviously higher and the difference was quite distinctive.When P <0.05, there was statistic significance.Conclusion ADA joint CRP detection of early differential diagnosis of tuberculous and pyogenic meningitis has great value.%目的:通过检测脑膜炎患者血液和 CSF(脑脊液)中的 ADA(腺苷脱氨酶)含量,同时检测患者血液中的CRP(C -反应蛋白)含量,用以鉴别结核性脑膜炎和化脓性脑膜炎。方法:选取儿科结核性脑膜炎和化脓性脑膜炎患者的血及脑脊液作 ADA 和血 CRP 进行生化检测,同时以病毒性及其他脑膜炎作对照组,对 ADA 和 CRP 的检测结果进行比对分析。结果:通过对结核性和化脓性及对照组脑膜炎的比较,结核性脑膜炎患者血和 CSF 中的 ADA 含量明显增高,差异明显,具有统计学意义(P <0.05);CRP 在化脓性脑膜炎患者血液中的含量较结核性和对照组明显增加,差异明显,具有统计学意义(P <0.05)。结论:ADA 联合 CRP 检测对早期鉴别诊断结核性与化脓性脑膜炎有较大价值。

  4. Poéticas del cuerpo monstruoso en la Ilíada y la Odisea

    Directory of Open Access Journals (Sweden)

    Mariano Nava Contreras

    2009-10-01

    Full Text Available Si bien la tradición ha considerado que los poemas homéricos son una fuente determinante en la creación y el desarrollo de la estética griega clásica fundamentada en los ideales de belleza y armonía, también es posible identificar allí una estética de la fealdad y de lo monstruoso, basada en la desmesura y la deformidad. A través de una revisión de la descripción de criaturas como Gorgona, Quimera, Escila, los Cíclopes o el Can Cerbero, es posible elaborar una poética de lo monstruoso que opera en la Ilíada y la Odisea como recurso patémico, pero también como instrumento narrativo.

  5. AdaNET Dynamic Software Inventory (DSI) prototype component acquisition plan

    Science.gov (United States)

    Hanley, Lionel

    1989-01-01

    A component acquisition plan contains the information needed to evaluate, select, and acquire software and hardware components necessary for successful completion of the AdaNET Dynamic Software Inventory (DSI) Management System Prototype. This plan will evolve and be applicable to all phases of the DSI prototype development. Resources, budgets, schedules, and organizations related to component acquisition activities are provided. A purpose and description of a software or hardware component which is to be acquired are presented. Since this is a plan for acquisition of all components, this section is not applicable. The procurement activities and events conducted by the acquirer are described and who is responsible is identified, where the activity will be performed, and when the activities will occur for each planned procurement. Acquisition requirements describe the specific requirements and standards to be followed during component acquisition. The activities which will take place during component acquisition are described. A list of abbreviations and acronyms, and a glossary are contained.

  6. Rdesign: A data dictionary with relational database design capabilities in Ada

    Science.gov (United States)

    Lekkos, Anthony A.; Kwok, Teresa Ting-Yin

    1986-01-01

    Data Dictionary is defined to be the set of all data attributes, which describe data objects in terms of their intrinsic attributes, such as name, type, size, format and definition. It is recognized as the data base for the Information Resource Management, to facilitate understanding and communication about the relationship between systems applications and systems data usage and to help assist in achieving data independence by permitting systems applications to access data knowledge of the location or storage characteristics of the data in the system. A research and development effort to use Ada has produced a data dictionary with data base design capabilities. This project supports data specification and analysis and offers a choice of the relational, network, and hierarchical model for logical data based design. It provides a highly integrated set of analysis and design transformation tools which range from templates for data element definition, spreadsheet for defining functional dependencies, normalization, to logical design generator.

  7. Rationales for regulatory activity

    Energy Technology Data Exchange (ETDEWEB)

    Perhac, R.M. [Univ. of Tennessee, Knoxville, TN (United States)

    1997-02-01

    The author provides an outline which touches on the types of concerns about risk evaluation which are addressed in the process of establishing regulatory guides. Broadly he says regulatory activity serves three broad constituents: (1) Paternalism (private risk); (2) Promotion of social welfare (public risks); (3) Protection of individual rights (public risks). He then discusses some of the major issues encountered in reaching a decision on what is an acceptable level of risk within each of these areas, and how one establishes such a level.

  8. Mutation at the Human D1S80 Minisatellite Locus

    Directory of Open Access Journals (Sweden)

    Kuppareddi Balamurugan

    2012-01-01

    Full Text Available Little is known about the general biology of minisatellites. The purpose of this study is to examine repeat mutations from the D1S80 minisatellite locus by sequence analysis to elucidate the mutational process at this locus. This is a highly polymorphic minisatellite locus, located in the subtelomeric region of chromosome 1. We have analyzed 90,000 human germline transmission events and found seven (7 mutations at this locus. The D1S80 alleles of the parentage trio, the child, mother, and the alleged father were sequenced and the origin of the mutation was determined. Using American Association of Blood Banks (AABB guidelines, we found a male mutation rate of 1.04×10-4 and a female mutation rate of 5.18×10-5 with an overall mutation rate of approximately 7.77×10-5. Also, in this study, we found that the identified mutations are in close proximity to the center of the repeat array rather than at the ends of the repeat array. Several studies have examined the mutational mechanisms of the minisatellites according to infinite allele model (IAM and the one-step stepwise mutation model (SMM. In this study, we found that this locus fits into the one-step mutation model (SMM mechanism in six out of seven instances similar to STR loci.

  9. Modeling of functional trunk muscle performance: interfacing ergonomics and spine rehabilitation in response to the ADA.

    Science.gov (United States)

    Khalaf, K A; Parnianpour, M; Sparto, P J; Simon, S R

    1997-10-01

    The combination of increasing costs of musculoskeletal injuries and the implementation of the Americans with Disabilities Act (ADA) has created the need for a more objective functional understanding of dynamic trunk performance. In this study, trunk extensor and flexor strengths were measured as a function of angular position and velocity for 20 subjects performing maximum isometric and isokinetic exertions. Results indicate that trunk strength is significantly influenced by trunk angular position, trunk angular velocity, gender, and direction, as well as by the interaction between trunk angular position and velocity. Three-dimensional surfaces of trunk strength in response to trunk angular position and velocity were constructed for each subject per direction. Such data presentation is more accurate and gives better insight about the strength profile of an individual than does the traditional use of a single strength value. The joint strength capacity profiles may be combined with joint torque requirements from a manual material handling task, such as a lifting task, to compute the dynamic utilization ratio for the trunk muscles. This ratio can be used as a unified measure of both task demand and functional capacity to guide job assignment, return to work, and prognosis during the rehabilitation processes. Furthermore, the strength regressions developed in this study would provide dynamic strength limits that can be used as functional constraints in the computer simulation of physical activities, such as lifting. In light of the ADA, this would be of great value in predicting the consequences of task modifications and/or workstation alterations without subjecting an injured worker or an individual with a disability to unnecessary testing.

  10. Distribution of Isotopic and Environmental Tracers in Groundwater, Northern Ada County, Southwestern Idaho

    Science.gov (United States)

    Adkins, Candice B.; Bartolino, James R.

    2010-01-01

    Residents of northern Ada County, Idaho, depend on groundwater for domestic and agricultural uses. The population of this area is growing rapidly and groundwater resources must be understood for future water-resource management. The U.S. Geological Survey, in cooperation with the Idaho Department of Water Resources, used a suite of isotopic and environmental tracers to gain a better understanding of groundwater ages, recharge sources, and flowpaths in northern Ada County. Thirteen wells were sampled between September and October 2009 for field parameters, major anions and cations, nutrients, oxygen and hydrogen isotopes, tritium, radiocarbon, chlorofluorocarbons, and dissolved gasses. Well depths ranged from 30 to 580 feet below land surface. Wells were grouped together based on their depth and geographic location into the following four categories: shallow aquifer, intermediate/deep aquifer, Willow Creek aquifer, and Dry Creek aquifer. Major cations and anions indicated calcium-bicarbonate and sodium-bicarbonate water types in the study area. Oxygen and hydrogen isotopes carried an oxygen-18 excess signature, possibly indicating recharge from evaporated sources or water-rock interactions in the subsurface. Chlorofluorocarbons detected modern (post-1940s) recharge in every well sampled; tritium data indicated modern water (post-1951) in seven, predominantly shallow wells. Nutrient concentrations tended to be greater in wells signaling recent recharge based on groundwater age dating, thus confirming the presence of recent recharge in these wells. Corrected radiocarbon results generated estimated residence times from modern to 5,100 years before present. Residence time tended to increase with depth, as confirmed by all three age-tracers. The disagreement among residence times indicates that samples were well-mixed and that the sampled aquifers contain a mixture of young and old recharge. Due to a lack of data, no conclusions about sources of recharge could be drawn

  11. The Comparison Flow of Four Impression Compounds (Green Stick with ADA Standard

    Directory of Open Access Journals (Sweden)

    S. Mir Mohammad Rezaei

    2004-09-01

    Full Text Available Statement of Problem: Low- fusing compound (type 1 is used for border molding and impressions. Flow and reproducibility of surface detail are two important characteristics of these materials. There are no valid data available comparing domestic and imported brands.Purpose: The Purpose of this study was to evaluate these two properties of four different products including Kerr (Kerr Manufacture MI 98174-2600, Harvard (Hoffman Harvard Dental GMb H Germany; Kymia (Kymia dental company 713 Iran; and Pishro (Pishro72534 Iran.Materials and Methods: All procedures were followed according to ADA and BSStandard.Total number of 48 samples were divided into 8 groups (6 in each group.Twenty disks were fabricated for impression tests. The specimen dimensions were 40 mm (diameter and 6mm (thickness. Standard test blocks were used to test the specimens.Results: The Willcoxon test showed significant difference in flow rate between materials tested with the best result for Kerr (P<0.05. Kerr flow was 85% and under 5% at 45°C and 37°C, respectively. There were great deviations from standards value at 45°C. For the rest of the samples at 37°C; except Kymia the flow rate for 3 materials (Kerr; Harvard Pishrowere almost acceptable. The impression test results revealed that only Kerr was able torecord the details at 45°C.Conclusion: Kerr flow is exactly what ADA standards specify. But the flow rate for three materials exhibit a great distance from these standards. In impression test only Kerr was able to record the details

  12. La díada en el desarrollo de la condición humana

    Directory of Open Access Journals (Sweden)

    Carmen Rosalía Solla

    2011-05-01

    Full Text Available Este artículo tiene como propósito realizar una disertación sobre la díada como estrategia socializadora que coadyuva al desarrollo de la condición humana, entendiendo ésta como la fuerza viva de interrelacionarse con su semejante, respetarlo, amarlo y ser empático son ese otro que está ahí para ser el complemento de uno. Esta investigación se desarrolla como un estudio documental, de tipo expositivo, ya que en éste se presentan los estudios de Valles (2004, Hernández y Cortés (2009, Solla (2003/2010 y, Rodríguez (2009 y se hace referencia a las teorías de Gadamer (1997, Heidegger (2003 y Bronfenbrenner (1987 como soportes al estudio de las relaciones complementarias, específicamente de la díada. Los trabajos antes mencionados se exponen en forma dialógica para que así uno sea complemento del otro. El artículo está compuesto por varias partes que guían al lector a entender al individuo desde su unicidad hasta la necesidad de complementarse con el otro quien le ayuda a ratificar su condición humana. Finalmente, se concluye que el ser humano, desde la relación diádica, abre su ser para desplegarse en el otro; promueve la interrelación, la comunicación, la cohesión, la afectividad, la reciprocidad, la solidaridad, el respeto y la dialógica; trabaja con su semejante y posibilita la formación de comunidades cohesionadas.

  13. HPV16 E6-induced and E6AP-dependent inhibition of the transcriptional coactivator hADA3 in human cervical carcinoma cells.

    Science.gov (United States)

    Hu, Ying; Ye, Feng; Lu, Weiguo; Hong, Die; Wan, Xiaoyun; Xie, Xing

    2009-03-01

    To determine whether there exists an additional pathway of E6 that is independent of direct P53 degradation and whether hADA3, a transcriptional coactivator, is involved in this process. We investigated the association between E6 and hADA3, as well as E6-associated protein (E6AP) and hADA3, in SiHa cells via RNA interference technique. Our results showed that the expression of hADA3 protein was significantly increased, cellular proliferation was decreased and apoptotic rate was increased in SiHa cells treated by E6 siRNA and E6AP siRNA respectively. Our results suggested that oncoprotein E6 inhibits hADA3 in cervical cancer cells and this process is E6AP-dependent.

  14. Proceedings of the Tenth Annual National Conference on Ada Technology. Held in Arlington, VA, on February 24-28, 1992

    Science.gov (United States)

    1992-02-01

    and a dynamic model- Both of these models are mmo=tato thereviewand mainmenance ofasoftwa=sysem The dynamic model, however, is te only one . Deutsch ...verbs) and "Zarf’ ( adverbs ) along with 10th Annual National Conference on ADA Technology 1992 77 their relationship to the objects in the The

  15. La tríada oscura de la personalidad: maquiavelismo, narcisismo y psicopatía. Una mirada evolutiva

    Directory of Open Access Journals (Sweden)

    Fernando Renee González Moraga

    2015-08-01

    Full Text Available Se aborda la denominada Tríada Oscura de la Personalidad -Tríada- (maquiavelismo, narcisismo subclínico y psicopatía subclínica desde una mirada evolutiva. El objetivo de esta investigación es revisar la evidencia que han presentado los teóricos evolucionistas sobre la Tríada, desde un acercamiento a la mirada evolutiva. Para esto, se indaga en las principales características de cada uno de estos rasgos, los instrumentos que se han utilizado para evaluarlos y las principales áreas en donde se han estudiado. La mirada evolutiva plantea que los rasgos de la Tríada son dimensionales y varían de acuerdo con las diversas estrategias que utilizan los sujetos para adaptarse a las características socioambientales en las que se desarrollan. Estos rasgos se caracterizan por presentar violencia psicológica, inhibición moral, manipulación, baja amabilidad, insensibilidad, egoísmo y dificultad para mentalizar en contextos de interacción interpersonal y social.

  16. Dynamic Allocation Strategy Based on Pre-allocation and Agent to Implement Ada95's Distributed Computing

    Institute of Scientific and Technical Information of China (English)

    ZhuFu-xi; FuJian-ming; WuChan-le; CaoZheng

    2003-01-01

    This paper discusses the model of how the Agent is applied to implement distributed computing of Ada95 and presents a dynamic allocation strategy for distributed computing that based on pre-allocationand Agent. The aim of this strategy is realizing dynamic equilibrium allocation.

  17. Catalog of Resources for Education in Ada (Trade Name) and Software Engineering (CREASE). Version 4.0.

    Science.gov (United States)

    1986-05-01

    John Wiley & Sons, Inc. 1 Wiley Dr. Somerset , NJ 08873 Offerowsacground: A forum for peer-reviewed research articles on the theory and practice of...fundamentals of programming make it suitable for someone who has never programmed before. Beginning Programming with Ada CREASE Vernon 4.0 223 Comparing

  18. Reliability prediction for the vehicles equipped with advanced driver assistance systems (ADAS and passive safety systems (PSS

    Directory of Open Access Journals (Sweden)

    Balbir S. Dhillon

    2012-10-01

    Full Text Available The human error has been reported as a major root cause in road accidents in today’s world. The human as a driver in road vehicles composed of human, mechanical and electrical components is constantly exposed to changing surroundings (e.g., road conditions, environmentwhich deteriorate the driver’s capacities leading to a potential accident. The auto industries and transportation authorities have realized that similar to other complex and safety sensitive transportation systems, the road vehicles need to rely on both advanced technologies (i.e., Advanced Driver Assistance Systems (ADAS and Passive Safety Systems (PSS (e.g.,, seatbelts, airbags in order to mitigate the risk of accidents and casualties. In this study, the advantages and disadvantages of ADAS as active safety systems as well as passive safety systems in road vehicles have been discussed. Also, this study proposes models that analyze the interactions between human as a driver and ADAS Warning and Crash Avoidance Systems and PSS in the design of vehicles. Thereafter, the mathematical models have been developed to make reliability prediction at any given time on the road transportation for vehicles equipped with ADAS and PSS. Finally, the implications of this study in the improvement of vehicle designs and prevention of casualties are discussed.

  19. Software Technology for Adaptable, Reliable Systems (STARS). Repository Integration AdaKNET Software User’s Manual

    Science.gov (United States)

    1990-10-03

    knowledge bases via amalgama - tion of small, special-ptupose knowledge bases. For example, a fragment of the Gadfly knowledge base describing Ada...amalgamations must have as their root concept a generic con- cept which exists in the current network specification. The interpretation of amalgama - tons is

  20. Desire for control, locus of control, and proneness to depression.

    Science.gov (United States)

    Burger, J M

    1984-03-01

    Two personality constructs, desire for control and locus of control, were related to depression among college students. Measures of levels of depression, desire for control, and locus of control were taken from subjects. Approximately six months later 71% of these subjects returned a questionnaire concerning their experiences with depression during that six-month period. It was found that locus of control scores, particularly the extent to which subjects perceived that their lives were controlled by chance, were significantly related to the depression levels. It was also found that high desire for control subjects who held external perceptions of control were most likely to seek nonprofessional help for depression. In addition, high desire for control subjects who perceived their lives as generally controlled by chance were most likely to have suicidal thoughts. The results are interpreted in terms of a general style that may promote a proneness to depression for certain individuals.

  1. The Regulatory Plan

    Science.gov (United States)

    2010-12-20

    ... reduce obesity. In support of these activities in 2011, the Food and Nutrition Service (FNS) will propose... regulatory choices are based on careful analysis of the evidence, and if opportunities are provided for... billions of dollars while increasing energy security; combating childhood obesity; and creating a ``race...

  2. Prediction of regulatory elements

    DEFF Research Database (Denmark)

    Sandelin, Albin

    2008-01-01

    Finding the regulatory mechanisms responsible for gene expression remains one of the most important challenges for biomedical research. A major focus in cellular biology is to find functional transcription factor binding sites (TFBS) responsible for the regulation of a downstream gene. As wet-lab...

  3. Locus-specific view of flax domestication history.

    Science.gov (United States)

    Fu, Yong-Bi; Diederichsen, Axel; Allaby, Robin G

    2012-01-01

    Crop domestication has been inferred genetically from neutral markers and increasingly from specific domestication-associated loci. However, some crops are utilized for multiple purposes that may or may not be reflected in a single domestication-associated locus. One such example is cultivated flax (Linum usitatissimum L.), the earliest oil and fiber crop, for which domestication history remains poorly understood. Oil composition of cultivated flax and pale flax (L. bienne Mill.) indicates that the sad2 locus is a candidate domestication locus associated with increased unsaturated fatty acid production in cultivated flax. A phylogenetic analysis of the sad2 locus in 43 pale and 70 cultivated flax accessions established a complex domestication history for flax that has not been observed previously. The analysis supports an early, independent domestication of a primitive flax lineage, in which the loss of seed dispersal through capsular indehiscence was not established, but increased oil content was likely occurred. A subsequent flax domestication process occurred that probably involved multiple domestications and includes lineages that contain oil, fiber, and winter varieties. In agreement with previous studies, oil rather than fiber varieties occupy basal phylogenetic positions. The data support multiple paths of flax domestication for oil-associated traits before selection of the other domestication-associated traits of seed dispersal loss and fiber production. The sad2 locus is less revealing about the origin of winter tolerance. In this case, a single domestication-associated locus is informative about the history of domesticated forms with the associated trait while partially informative on forms less associated with the trait.

  4. Ada (Tradename) Compiler Validation Summary Report: TeleSoft TeleGen2 E68, Version 3.11. Host: MicroVAX II, Targets: Motorola 68020, 68010 Tektronix 8540 (M68010 CPU),

    Science.gov (United States)

    1986-09-24

    Testing, Ada Validation Office, AVO, Ada Validation Facility, AVF, ANSI/MIL-STD- 1815A, Ada Joint Program Office, AJPO 20. ABS TRAC T (Continue on reverse...test SI results ara written to tha tyneenead buffor on the host comrouter usin the $1 sami line Vtt wer used for downlcading. $ £ TSAJA /2OgNLZA - w

  5. Nuclear Regulatory Commission information digest

    Energy Technology Data Exchange (ETDEWEB)

    None,

    1990-03-01

    The Nuclear Regulatory Commission information digest provides summary information regarding the US Nuclear Regulatory Commission, its regulatory responsibilities, and areas licensed by the commission. This is an annual publication for the general use of the NRC Staff and is available to the public. The digest is divided into two parts: the first presents an overview of the US Nuclear Regulatory Commission and the second provides data on NRC commercial nuclear reactor licensees and commercial nuclear power reactors worldwide.

  6. Identification of a shared genetic susceptibility locus for coronary heart disease and periodontitis.

    Directory of Open Access Journals (Sweden)

    Arne S Schaefer

    2009-02-01

    Full Text Available Recent studies indicate a mutual epidemiological relationship between coronary heart disease (CHD and periodontitis. Both diseases are associated with similar risk factors and are characterized by a chronic inflammatory process. In a candidate-gene association study, we identify an association of a genetic susceptibility locus shared by both diseases. We confirm the known association of two neighboring linkage disequilibrium regions on human chromosome 9p21.3 with CHD and show the additional strong association of these loci with the risk of aggressive periodontitis. For the lead SNP of the main associated linkage disequilibrium region, rs1333048, the odds ratio of the autosomal-recessive mode of inheritance is 1.99 (95% confidence interval 1.33-2.94; P = 6.9 x 10(-4 for generalized aggressive periodontitis, and 1.72 (1.06-2.76; P = 2.6 x 10(-2 for localized aggressive periodontitis. The two associated linkage disequilibrium regions map to the sequence of the large antisense noncoding RNA ANRIL, which partly overlaps regulatory and coding sequences of CDKN2A/CDKN2B. A closely located diabetes-associated variant was independent of the CHD and periodontitis risk haplotypes. Our study demonstrates that CHD and periodontitis are genetically related by at least one susceptibility locus, which is possibly involved in ANRIL activity and independent of diabetes associated risk variants within this region. Elucidation of the interplay of ANRIL transcript variants and their involvement in increased susceptibility to the interactive diseases CHD and periodontitis promises new insight into the underlying shared pathogenic mechanisms of these complex common diseases.

  7. Exploring Learner Autonomy: Language Learning Locus of Control in Multilinguals

    Science.gov (United States)

    Peek, Ron

    2016-01-01

    By using data from an online language learning beliefs survey (n?=?841), defining language learning experience in terms of participants' multilingualism, and using a domain-specific language learning locus of control (LLLOC) instrument, this article examines whether more experienced language learners can also be seen as more autonomous language…

  8. Motive to Avoid Success, Locus of Control, and Reinforcement Avoidance.

    Science.gov (United States)

    Katovsky, Walter

    Subjects were four groups of 12 college women, high or low in motive to avoid success (MAS) and locus of control (LC), were reinforced for response A on a fixed partial reinforcement schedule on three concept learning tasks, one task consisting of combined reward and punishment, another of reward only, and one of punishment only. Response B was…

  9. Locus of Control and Human Capital Investment Revisited

    Science.gov (United States)

    Cebi, Merve

    2007-01-01

    This paper examines the effect of teenagers' outlooks--specified as their locus of control--on educational attainment and labor market outcomes. I replicate the study of Coleman and DeLeire (2003) and test the predictions of their theoretical model using a different data set--National Longitudinal Survey of Youth (NLSY). The findings fail to…

  10. Determination of the yield locus by means of temperature measurement

    NARCIS (Netherlands)

    Banabic, D.; Huetink, J.

    2006-01-01

    The paper presents a theoretical background of the thermo-graphical method of determining the yield locus. The analytical expression of the temperature variation of the specimen deformed in the elastic state is determined starting from the first law of thermodynamics. The experimental method for det

  11. Analysis of the ABCA4 genomic locus in Stargardt disease

    DEFF Research Database (Denmark)

    Zernant, Jana; Xie, Yajing Angela; Ayuso, Carmen

    2014-01-01

    was designed to find the missing disease-causing ABCA4 variation by a combination of next-generation sequencing (NGS), array-Comparative Genome Hybridization (aCGH) screening, familial segregation and in silico analyses. The entire 140 kb ABCA4 genomic locus was sequenced in 114 STGD patients with one known...

  12. Locus of Control and Its Reflection in Teachers' Professional Attributions.

    Science.gov (United States)

    Kremer, Lya; Lifmann, Margot

    1982-01-01

    Investigated possible reflections of teachers' locus of control in their professional attributions in educational situations. Findings based on a random sample of 190 elementary school teachers point to significant differences between high and low scores on the I.E. Scale (Rotter, 1966) in attribution of responsibility in several educational…

  13. Relationships among Impulsiveness, Locus of Control, Sex, and Music Practice

    Science.gov (United States)

    Miksza, Peter

    2006-01-01

    This study is an investigation of relationships among impulsiveness, locus of control, sex, observed practice behaviors, practice effectiveness, and self-reported practice habits in a sample of 40 college brass players. Practice effectiveness was defined by the amount of change in pretest and posttest performance achievement scores over one…

  14. Confirmatory Factor Analysis of the Work Locus of Control Scale

    Science.gov (United States)

    Oliver, Joseph E.; Jose, Paul E.; Brough, Paula

    2006-01-01

    Original formulations of the Work Locus of Control Scale (WLCS) proposed a unidimensional structure of this measure; however, more recently, evidence for a two-dimensional structure has been reported, with separate subscales for internal and external loci of control. The current study evaluates the one- and two-factor models with confirmatory…

  15. Inferring relationships between pairs of individuals from locus heterozygosities

    Directory of Open Access Journals (Sweden)

    Spinetti Isabella

    2002-11-01

    Full Text Available Abstract Background The traditional exact method for inferring relationships between individuals from genetic data is not easily applicable in all situations that may be encountered in several fields of applied genetics. This study describes an approach that gives affordable results and is easily applicable; it is based on the probabilities that two individuals share 0, 1 or both alleles at a locus identical by state. Results We show that these probabilities (zi depend on locus heterozygosity (H, and are scarcely affected by variation of the distribution of allele frequencies. This allows us to obtain empirical curves relating zi's to H for a series of common relationships, so that the likelihood ratio of a pair of relationships between any two individuals, given their genotypes at a locus, is a function of a single parameter, H. Application to large samples of mother-child and full-sib pairs shows that the statistical power of this method to infer the correct relationship is not much lower than the exact method. Analysis of a large database of STR data proves that locus heterozygosity does not vary significantly among Caucasian populations, apart from special cases, so that the likelihood ratio of the more common relationships between pairs of individuals may be obtained by looking at tabulated zi values. Conclusions A simple method is provided, which may be used by any scientist with the help of a calculator or a spreadsheet to compute the likelihood ratios of common alternative relationships between pairs of individuals.

  16. Should Farmers' Locus of Control Be Used in Extension?

    Science.gov (United States)

    Nuthall, Peter L.

    2010-01-01

    To explore whether Farmers' Locus of Control (LOC) could be useful in agricultural extension programmes to improve managerial ability. This test records a farmer's belief in her/his control over production outcomes. A mail survey of 2300 New Zealand farmers was used to obtain a range of variables, and to measure their LOC using a question set…

  17. Thought Recognition, Locus of Control, and Adolescent Well-Being.

    Science.gov (United States)

    Kelley, Thomas M.; Stack, Steven A.

    2000-01-01

    Reviews the underlying assumptions and principles of a new psychological paradigm, Psychology of Mind/Health Realization (POM/HR). Thought recognition is compared with locus of control (LOC). The relationship of LOC to self-reported happiness and satisfaction is examined from the perspective of POM/HR, using a sample of at-risk adolescents…

  18. 40 CFR 798.5200 - Mouse visible specific locus test.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 31 2010-07-01 2010-07-01 true Mouse visible specific locus test. 798.5200 Section 798.5200 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC...)F1 or (101×C3H)F1 hybrids. Females shall be T stock virgins. (ii) Age. Healthy sexually...

  19. Toward an orofacial gene regulatory network.

    Science.gov (United States)

    Kousa, Youssef A; Schutte, Brian C

    2016-03-01

    Orofacial clefting is a common birth defect with significant morbidity. A panoply of candidate genes have been discovered through synergy of animal models and human genetics. Among these, variants in interferon regulatory factor 6 (IRF6) cause syndromic orofacial clefting and contribute risk toward isolated cleft lip and palate (1/700 live births). Rare variants in IRF6 can lead to Van der Woude syndrome (1/35,000 live births) and popliteal pterygium syndrome (1/300,000 live births). Furthermore, IRF6 regulates GRHL3 and rare variants in this downstream target can also lead to Van der Woude syndrome. In addition, a common variant (rs642961) in the IRF6 locus is found in 30% of the world's population and contributes risk for isolated orofacial clefting. Biochemical studies revealed that rs642961 abrogates one of four AP-2alpha binding sites. Like IRF6 and GRHL3, rare variants in TFAP2A can also lead to syndromic orofacial clefting with lip pits (branchio-oculo-facial syndrome). The literature suggests that AP-2alpha, IRF6 and GRHL3 are part of a pathway that is essential for lip and palate development. In addition to updating the pathways, players and pursuits, this review will highlight some of the current questions in the study of orofacial clefting.

  20. [Drug compliance and health locus of control in schizophrenia].

    Science.gov (United States)

    Combes, C; Feral, F

    2011-05-01

    Schizophrenia is a frequent disorder since it affects about 1% of the general population. Drug compliance, that is to say patients' adherence to their treatment, remains rather poor concerning this disease with, on an average, one patient out of two not complying with his/her medication. Among the factors influencing drug compliance, we focused on patients' beliefs in terms of health control, a concept known as health locus of control. This is a concept that originated from social psychology and derived from the Rotters' original concept of locus of control: it corresponds to the type of connexion established by an individual between subsequent events in the history of his/her disease and internal (personal abilities) or external factors (chance, powerful others). Nowadays, the tridimensional structure of this concept is commonly admitted as being in three dimensions: internality, chance externality and powerful others externality, the latter group being divided between doctors and others. We have assumed that there is a correlation between the degree of drug compliance and the internal and/or doctors' external health locus of control. For this purpose, we have determined the quality of drug compliance by using the Medical Adherence Rating Scale (MARS) and the type of health locus of control by using the Multidimensional Health Locus of Control (MHLC) scale among 65 schizophrenic patients. We have also considered it was important to evaluate patients' insight by using the Amador's scale (Scale of Unawareness of Mental Disorder) because many researchers have established a strong correlation between insight and drug compliance in schizophrenia. Associations between the four dimensions of health locus of control ("internal", "chance external", "others external" and "doctors' external") and drug compliance were assessed by estimating Spearman's rank correlation coefficient (r) and its degree of significance (p). These associations were judged significant at an alpha

  1. Expression levels of barley Cbf genes at the Frost resistance-H2 locus are dependent upon alleles at Fr-H1 and Fr-H2.

    Science.gov (United States)

    Stockinger, Eric J; Skinner, Jeffrey S; Gardner, Kip G; Francia, Enrico; Pecchioni, Nicola

    2007-07-01

    Genetic analyses have identified two loci in wheat and barley that mediate the capacity to overwinter in temperate climates. One locus co-segregates with VRN-1, which affects the vernalization requirement. This locus is known as Frost resistance-1 (Fr-1). The second locus, Fr-2, is coincident with a cluster of more than 12 Cbf genes. Cbf homologs in Arabidopsis thaliana play a key regulatory role in cold acclimatization and the acquisition of freezing tolerance. Here we report that the Hordeum vulgare (barley) locus VRN-H1/Fr-H1 affects expression of multiple barley Cbf genes at Fr-H2. RNA blot analyses, conducted on a 'Nure'x'Tremois' barley mapping population segregating for VRN-H1/Fr-H1 and Fr-H2, revealed that transcript levels of all cold-induced Cbf genes at Fr-H2 were significantly higher in recombinants harboring the vrn-H1 winter allele than in recombinants harboring the Vrn-H1 spring allele. Steady-state Cbf2 and Cbf4 levels were also significantly higher in recombinants harboring the Nure allele at Fr-H2. Additional experiments indicated that, in vrn-H1 genotypes requiring vernalization, Cbf expression levels were dampened after plants were vernalized, and dampened Cbf expression was accompanied by robust expression of Vrn-1. Cbf levels were also significantly higher in plants grown under short days than under long days. Experiments in wheat and rye indicated that similar regulatory mechanisms occurred in these plants. These results suggest that VRN-H1/Fr-H1 acts in part to repress or attenuate expression of the Cbf at Fr-H2; and that the greater level of low temperature tolerance attributable to the Nure Fr-H2 allele may be due to the greater accumulation of Cbf2 and Cbf4 transcripts during normal growth and development.

  2. Evolutionary process of a tetranucleotide microsatellite locus in Acipenseriformes

    Indian Academy of Sciences (India)

    Zhao Jun Shao; Eric Rivals; Na Zhao; Sovan Lek; Jianbo Chang; Patrick Berrebi

    2011-08-01

    The evolutionary dynamics of the tetra-nucleotide microsatellite locus Spl-106 were investigated at the repeat and flanking sequences in 137 individuals of 15 Acipenseriform species, giving 93 homologous sequences, which were detected in 11 out of 15 species. Twenty-three haplotypes of flanking sequences and three distinct types of repeats, type I, type II and type III, were found within these 93 sequences. The MS-Align phylogenetic method, newly applied to microsatellite sequences, permitted us to understand the repeat and flanking sequence evolution of Spl-106 locus. The flanking region of locus Spl-106 was highly conserved among the species of genera Acipenser, Huso and Scaphirhynchus, which diverged about 150 million years ago (Mya). The rate of flanking sequence divergence at the microsatellite locus Spl-106 in sturgeons is between 0.011% and 0.079% with an average at 0.028% per million years. Sequence alignment and phylogenetic trees produced by MS-Align showed that both the flanking and repeat regions can cluster the alleles of different species into Pacific and Atlantic lineages. Our results show a synchronous evolutionary pattern between the flanking and repeat regions. Moreover, the coexistence of different repeat types in the same species, even in the same individual, is probably due to two duplication events encompassing the locus Spl-106 that occurred during the divergence of Pacific lineage. The first occured before the diversification of Pacific species (121–96 Mya) and led to repeat types I and II. The second occurred more recently, just before the speciation of A. sinensis and A. dabryanus (69–10 Mya), and led to repeat type III. Sequences in the same species with different repeat types probably corresponds to paralogous loci. This study sheds a new light on the evolutionary mechanisms that shape the complex microsatellite loci involving different repeat types.

  3. 基于AdaBoost算法的人脸人眼分类器的设计与实现%Design and Implementation of Face and Eye Categorizer Based on AdaBoost Algorithm

    Institute of Scientific and Technical Information of China (English)

    汪仕才; 冯桑; 呙腾

    2015-01-01

    人脸检测和人眼定位是检测驾驶疲劳的首要工作,而人眼准确定位和检测速度直接影响后续疲劳检测的实时性和鲁棒性。基于AdaBoost算法检测速度快,泛化能力强等特点,通过建立针对驾驶环境下的人脸、人眼样本集,深入研究驾驶员的人脸人眼识别问题。实验证明,AdaBoost级联分类器不仅能够准确检测人的正脸,而且对于侧脸、戴眼睛和部分遮挡也有很高的识别率。%Face detection and eyes orientation are the primary task of detecting driver fatigue, and the real-time and robustness of the following fa-tigue detection is directly influenced by the accurate orientation of human eyes and the speed of detection. Studies the recognition prob-lem of driver's face and eyes further through establishing the sample database of face and eye under the driving environment, which is based on the features of fast detection speed and strong generalization ability of AdaBoost algorithm. Experimental results show that the AdaBoost cascade classifier can not only accurately detect frontal faces, but also have very high recognition rate for a face in profile or with glasses and the partially occluded face.

  4. Improvement of AdaBoost Face Detection Algorithm Based on Skin Color Detection%基于肤色检测的AdaBoost人脸检测算法改进

    Institute of Scientific and Technical Information of China (English)

    李明瑞; 傅明; 曹敦

    2012-01-01

    AdaBoost人脸检测算法用于嵌入式实时高清视频时检测速度缓慢.为此,提出一种改进的人脸检测算法.对图像做肤色检测,将检测到的区域进行形态学处理,并作为感兴趣区域,完成AdaBoost人脸检测,以得到检测结果.实验结果表明,该算法在嵌入式系统上运行稳定,能提高检测速度和检测正确率.%An improved face detection algorithm is proposed to solve the problem of slow speed in real-time HD video face detection. This paper does face detection on high color image, gets the morphology processing detection results, sets the Region of Interest(ROI), and does AdaBoost face detection on ROI to get the result. Experimental results show that the algorithm can steadily operate on embedded systems, and improve the detection accuracy and the detection speed.

  5. Allele-specific locus binding and genome editing by CRISPR at the p16INK4a locus.

    Science.gov (United States)

    Fujita, Toshitsugu; Yuno, Miyuki; Fujii, Hodaka

    2016-07-28

    The clustered regularly interspaced short palindromic repeats (CRISPR) system has been adopted for a wide range of biological applications including genome editing. In some cases, dissection of genome functions requires allele-specific genome editing, but the use of CRISPR for this purpose has not been studied in detail. In this study, using the p16INK4a gene in HCT116 as a model locus, we investigated whether chromatin states, such as CpG methylation, or a single-nucleotide gap form in a target site can be exploited for allele-specific locus binding and genome editing by CRISPR in vivo. First, we showed that allele-specific locus binding and genome editing could be achieved by targeting allele-specific CpG-methylated regions, which was successful for one, but not all guide RNAs. In this regard, molecular basis underlying the success remains elusive at this stage. Next, we demonstrated that an allele-specific single-nucleotide gap form could be employed for allele-specific locus binding and genome editing by CRISPR, although it was important to avoid CRISPR tolerance of a single nucleotide mismatch brought about by mismatched base skipping. Our results provide information that might be useful for applications of CRISPR in studies of allele-specific functions in the genomes.

  6. Fusion of optimized indicators from Advanced Driver Assistance Systems (ADAS) for driver drowsiness detection.

    Science.gov (United States)

    Daza, Iván García; Bergasa, Luis Miguel; Bronte, Sebastián; Yebes, Jose Javier; Almazán, Javier; Arroyo, Roberto

    2014-01-09

    This paper presents a non-intrusive approach for monitoring driver drowsiness using the fusion of several optimized indicators based on driver physical and driving performance measures, obtained from ADAS (Advanced Driver Assistant Systems) in simulated conditions. The paper is focused on real-time drowsiness detection technology rather than on long-term sleep/awake regulation prediction technology. We have developed our own vision system in order to obtain robust and optimized driver indicators able to be used in simulators and future real environments. These indicators are principally based on driver physical and driving performance skills. The fusion of several indicators, proposed in the literature, is evaluated using a neural network and a stochastic optimization method to obtain the best combination. We propose a new method for ground-truth generation based on a supervised Karolinska Sleepiness Scale (KSS). An extensive evaluation of indicators, derived from trials over a third generation simulator with several test subjects during different driving sessions, was performed. The main conclusions about the performance of single indicators and the best combinations of them are included, as well as the future works derived from this study.

  7. Fusion of Optimized Indicators from Advanced Driver Assistance Systems (ADAS for Driver Drowsiness Detection

    Directory of Open Access Journals (Sweden)

    Iván G. Daza

    2014-01-01

    Full Text Available This paper presents a non-intrusive approach for monitoring driver drowsiness using the fusion of several optimized indicators based on driver physical and driving performance measures, obtained from ADAS (Advanced Driver Assistant Systems in simulated conditions. The paper is focused on real-time drowsiness detection technology rather than on long-term sleep/awake regulation prediction technology. We have developed our own vision system in order to obtain robust and optimized driver indicators able to be used in simulators and future real environments. These indicators are principally based on driver physical and driving performance skills. The fusion of several indicators, proposed in the literature, is evaluated using a neural network and a stochastic optimization method to obtain the best combination. We propose a new method for ground-truth generation based on a supervised Karolinska Sleepiness Scale (KSS. An extensive evaluation of indicators, derived from trials over a third generation simulator with several test subjects during different driving sessions, was performed. The main conclusions about the performance of single indicators and the best combinations of them are included, as well as the future works derived from this study.

  8. Effective classification of microRNA precursors using feature mining and AdaBoost algorithms.

    Science.gov (United States)

    Zhong, Ling; Wang, Jason T L; Wen, Dongrong; Aris, Virginie; Soteropoulos, Patricia; Shapiro, Bruce A

    2013-09-01

    MicroRNAs play important roles in most biological processes, including cell proliferation, tissue differentiation, and embryonic development, among others. They originate from precursor transcripts (pre-miRNAs), which contain phylogenetically conserved stem-loop structures. An important bioinformatics problem is to distinguish the pre-miRNAs from pseudo pre-miRNAs that have similar stem-loop structures. We present here a novel method for tackling this bioinformatics problem. Our method, named MirID, accepts an RNA sequence as input, and classifies the RNA sequence either as positive (i.e., a real pre-miRNA) or as negative (i.e., a pseudo pre-miRNA). MirID employs a feature mining algorithm for finding combinations of features suitable for building pre-miRNA classification models. These models are implemented using support vector machines, which are combined to construct a classifier ensemble. The accuracy of the classifier ensemble is further enhanced by the utilization of an AdaBoost algorithm. When compared with two closely related tools on twelve species analyzed with these tools, MirID outperforms the existing tools on the majority of the twelve species. MirID was also tested on nine additional species, and the results showed high accuracies on the nine species. The MirID web server is fully operational and freely accessible at http://bioinformatics.njit.edu/MirID/ . Potential applications of this software in genomics and medicine are also discussed.

  9. Arabidopsis RRP6L1 and RRP6L2 function in FLOWERING LOCUS C silencing via regulation of antisense RNA synthesis.

    Directory of Open Access Journals (Sweden)

    Jun-Hye Shin

    2014-09-01

    Full Text Available The exosome complex functions in RNA metabolism and transcriptional gene silencing. Here, we report that mutations of two Arabidopsis genes encoding nuclear exosome components AtRRP6L1 and AtRRP6L2, cause de-repression of the main flowering repressor FLOWERING LOCUS C (FLC and thus delay flowering in early-flowering Arabidopsis ecotypes. AtRRP6L mutations affect the expression of known FLC regulatory antisense (AS RNAs AS I and II, and cause an increase in Histone3 K4 trimethylation (H3K4me3 at FLC. AtRRP6L1 and AtRRP6L2 function redundantly in regulation of FLC and also act independently of the exosome core complex. Moreover, we discovered a novel, long non-coding, non-polyadenylated antisense transcript (ASL, for Antisense Long originating from the FLC locus in wild type plants. The AtRRP6L proteins function as the main regulators of ASL synthesis, as these mutants show little or no ASL transcript. Unlike ASI/II, ASL associates with H3K27me3 regions of FLC, suggesting that it could function in the maintenance of H3K27 trimethylation during vegetative growth. AtRRP6L mutations also affect H3K27me3 levels and nucleosome density at the FLC locus. Furthermore, AtRRP6L1 physically associates with the ASL transcript and directly interacts with the FLC locus. We propose that AtRRP6L proteins participate in the maintenance of H3K27me3 at FLC via regulating ASL. Furthermore, AtRRP6Ls might participate in multiple FLC silencing pathways by regulating diverse antisense RNAs derived from the FLC locus.

  10. Novel Crohn disease locus identified by genome-wide association maps to a gene desert on 5p13.1 and modulates expression of PTGER4.

    Directory of Open Access Journals (Sweden)

    Cécile Libioulle

    2007-04-01

    Full Text Available To identify novel susceptibility loci for Crohn disease (CD, we undertook a genome-wide association study with more than 300,000 SNPs characterized in 547 patients and 928 controls. We found three chromosome regions that provided evidence of disease association with p-values between 10(-6 and 10(-9. Two of these (IL23R on Chromosome 1 and CARD15 on Chromosome 16 correspond to genes previously reported to be associated with CD. In addition, a 250-kb region of Chromosome 5p13.1 was found to contain multiple markers with strongly suggestive evidence of disease association (including four markers with p < 10(-7. We replicated the results for 5p13.1 by studying 1,266 additional CD patients, 559 additional controls, and 428 trios. Significant evidence of association (p < 4 x 10(-4 was found in case/control comparisons with the replication data, while associated alleles were over-transmitted to affected offspring (p < 0.05, thus confirming that the 5p13.1 locus contributes to CD susceptibility. The CD-associated 250-kb region was saturated with 111 SNP markers. Haplotype analysis supports a complex locus architecture with multiple variants contributing to disease susceptibility. The novel 5p13.1 CD locus is contained within a 1.25-Mb gene desert. We present evidence that disease-associated alleles correlate with quantitative expression levels of the prostaglandin receptor EP4, PTGER4, the gene that resides closest to the associated region. Our results identify a major new susceptibility locus for CD, and suggest that genetic variants associated with disease risk at this locus could modulate cis-acting regulatory elements of PTGER4.

  11. DMPD: The Lps locus: genetic regulation of host responses to bacteriallipopolysaccharide. [Dynamic Macrophage Pathway CSML Database

    Lifescience Database Archive (English)

    Full Text Available 10669111 The Lps locus: genetic regulation of host responses to bacteriallipopolysa...w The Lps locus: genetic regulation of host responses to bacteriallipopolysaccharide. PubmedID 10669111 Titl...e The Lps locus: genetic regulation of host responses to bacteriallipopolysacchar

  12. Rasch Analysis of the Locus-of-Hope Scale. Brief Report

    Science.gov (United States)

    Gadiana, Leny G.; David, Adonis P.

    2015-01-01

    The Locus-of-Hope Scale (LHS) was developed as a measure of the locus-of-hope dimensions (Bernardo, 2010). The present study adds to the emerging literature on locus-of-hope by assessing the psychometric properties of the LHS using Rasch analysis. The results from the Rasch analyses of the four subscales of LHS provided evidence on the…

  13. A cut locus for finite graphs and the farthest point mapping

    DEFF Research Database (Denmark)

    Maddaloni, Alessandro; Zamfirescu, Carol T.

    2016-01-01

    We reflect upon an analogue of the cut locus, a notion classically studied in Differential Geometry, for finite graphs. The cut locus C(x) of a vertex x shall be the graph induced by the set of all vertices y with the property that no shortest path between x and z, z≠y, contains y. The cut locus ...

  14. On the Relation of Locus of Control and L2 Reading and Writing Achievement

    Science.gov (United States)

    Ghonsooly, Behzad; Shirvan, Majid Elahi

    2011-01-01

    Locus of control, a psychological construct, has been the focus of attention in recent decades. Psychologists have discussed the effect of locus of control on achieving life goals in social/psychological interactions. While learning a foreign language involves both social interactions and psychological processes, the role and relation of locus of…

  15. On the Locus Formed by the Maximum Heights of Projectile Motion with Air Resistance

    Science.gov (United States)

    Hernandez-Saldana, H.

    2010-01-01

    We present an analysis on the locus formed by the set of maxima of the trajectories of a projectile launched in a medium with linear drag. Such a place, the locus of apexes, is written in terms of the Lambert "W" function in polar coordinates, confirming the special role played by this function in the problem. To characterize the locus, a study of…

  16. Large Scale Software System Design of the Missile Minder AN/TSQ-73 Using the ADA Programming Language.

    Science.gov (United States)

    1982-11-09

    Appendix I. The format followed below presents the concept definition and dis- plays expamples of Ada code with a discussion of the merit of the application...the lead participant in the design methodology validation task. Organized and directed the program coding effort to ensure delivery to the government...effec- tively utilized. As is stated in Structured Programming (31), "Good program design finding deep simplicities in a complex logical task- leads to

  17. Utility of adenosine deaminase (ADA, PCR & thoracoscopy in differentiating tuberculous & non-tuberculous pleural effusion complicating chronic kidney disease

    Directory of Open Access Journals (Sweden)

    Sravan Kumar

    2015-01-01

    Full Text Available Background & objectives: Pleural effusion is a common occurrence in patients with late-stage chronic kidney disease (CKD. In developing countries, many effusions remain undiagnosed after pleural fluid analysis (PFA and patients are empirically treated with antitubercular therapy. The aim of this study was to evaluate the role of adenosine deaminase (ADA, nucleic acid amplification tests (NAAT and medical thoracoscopy in distinguishing tubercular and non-tubercular aetiologies in exudative pleural effusions complicating CKD. Methods: Consecutive stage 4 and 5 CKD patients with pleural effusions underwent PFA including ADA and PCR [65 kDa gene; multiplex (IS6110, protein antigen b, MPB64]. Patients with exudative pleural effusion undiagnosed after PFA underwent medical thoracoscopy. Results: All 107 patients underwent thoracocentesis with 45 and 62 patients diagnosed as transudative and exudative pleural effusions, respectively. Twenty six of the 62 patients underwent medical thoracoscopy. Tuberculous pleurisy was diagnosed in six while uraemic pleuritis was diagnosed in 20 subjects. The sensitivity and specificity of pleural fluid ADA, 65 kDa gene PCR, and multiplex PCR were 66.7 and 90 per cent, 100 and 50 per cent, and 100 and 100 per cent, respectively. Thoracoscopy was associated with five complications in three patients. Interpretation & conclusions: Uraemia remains the most common cause of pleural effusion in CKD even in high TB prevalence country. Multiplex PCR and thoracoscopy are useful investigations in the diagnostic work-up of pleural effusions complicating CKD while the sensitivity and/or specificity of ADA and 65 kDa gene PCR is poor.

  18. Aquifer Recharge Estimation through Atmospheric Chloride Mass Balance at Las Cañadas Caldera, Tenerife, Canary Islands, Spain

    OpenAIRE

    Rayco Marrero-Diaz; Alcalá, Francisco J.; Pérez, Nemesio M.; Dina L. López; Melián, Gladys V.; Eleazar Padrón; Germán D. Padilla

    2015-01-01

    The atmospheric chloride mass balance (CMB) method was used to estimate net aquifer recharge in Las Cañadas Caldera, an endorheic summit aquifer area about 2000 m a.s.l. with negligible surface runoff, which hosts the largest freshwater reserve in Tenerife Island, Canary Islands, Spain. The wet hydrological year 2005–2006 was selected to compare yearly atmospheric chloride bulk deposition and average chloride content in recharge water just above the water table, both deduced from periodical...

  19. Matrices generadas por adición de díadas (matrices de rango 1): propiedades y aplicaciones

    OpenAIRE

    Ortigueira, Manuel D.

    1996-01-01

    Se estudian las matrices elementales de rango 1 (díadas). Para estas matrices se presentan fórmulas para su factorización, inversión, descomposición en valores propios y valores singulares. Estos resultados son aplicados en análisis recursivo a cualquier matriz, siempre que se descomponga en una suma de matrices de rango 1. Peer Reviewed

  20. Effect of zinc supplementation on E-ADA activity, seric zinc, and cytokines levels of Trypanosoma evansi infected Wistar rats.

    Science.gov (United States)

    Bottari, Nathieli B; Baldissera, Matheus D; Oliveira, Camila B; Duarte, Thiago; Duarte, Marta M M F; Leal, Marta L R; Thomé, Gustavo R; Zanini, Daniela; Schetinger, Maria Rosa C; Nunes, Matheus A G; Dressler, Valderi L; Monteiro, Silvia G; Tonin, Alexandre A; Da Silva, Aleksandro S

    2014-09-01

    The aim of this study was to evaluate the effect of zinc supplementation on the ecto-adenosine deaminase activity (E-ADA), zinc seric levels and cytokines (TNF-α, IL-1, IL-6, and IL -10) on rats experimentally infected by Trypanosoma evansi. Four groups with 10 rats each were used as negative controls (groups A and B), while the animals from the groups C and D were infected intraperitoneally with 0.1 mL of cryopreserved blood containing 1.4 × 10(4) of trypanosomes. Animals of groups B and D received two doses of Zinc (Zn) at 5 mg kg(-1), subcutaneously, on the 2nd and 7th day post-infection (PI). Blood samples were collected on days 5 (n = 5) and 15 PI (n = 5). Zn supplementation was able to increase the rat's longevity and to reduce their parasitemia. It was observed that seric Zn levels were increased on infected animals under Zn supplementation. Animals that were infected and supplemented with Zn showed changes in E-ADA activity and in cytokine levels (P < 0.05). Zn supplementation of healthy animals (Group B), increased the E-ADA activity, as well as reduced the concentration of cytokines. Infected animals from groups C and D showed increased levels of cytokines. Finally, we observed that Zn supplementation led to a modulation on cytokine's level in rats infected by T. evansi, as well as in E-ADA activity.

  1. 改进的AdaBoost检测算法在身份识别中的应用%Improved AdaBoost Detection Algorithm and Application in Identity Authentication

    Institute of Scientific and Technical Information of China (English)

    黄志威

    2015-01-01

    传统的AdaBoost人脸检测算法训练时间长对设备要求高,在复杂背景下存在漏检误检.提出一种基于小波重构和特征提取的AdaBoost人脸检测算法,并应用到身份验证中.采用小波重构方法,实现对人脸信息有用特征的重构,进行去噪处理提高人脸识别的准确性.采用人脸特征关联性方法将不同的人脸特征子集进行分类处理,采用特征提取算法实现对AdaBoost算法的改进.仿真结果表明,采用改进的人脸检测算法进行身份验证,能检测到一定范围内的非正脸图像特征,有效提取人脸的局部信息特征点,提高身份验证对象的检测精度和正确识别率.%The traditional face detection algorithm needs much training time, and has high requirements for equipment,and there are false detection in complex background. An AdaBoost face detection algorithm is proposed based on wavelet recon-struction and feature extraction, and it is applied in identity verification. By using the wavelet reconstruction method, the re-construction of useful face information features is obtained, denoising processing is used to improve the accuracy of face recognition. The facial feature relevance method is used, and the different features of face are classified in different sets. The feature extraction algorithm is used to improve the AdaBoost face detection algorithm. Simulation results show that,the new method can detect the non frontal face image features within a certain range, and the detection precision and accurate recognition rate are improved.

  2. Using Vertical Electrical Soundings for Characterizing Hydrogeological and Tectonic Settings in Deir El-Adas Area, Yarmouk Basin, Syria

    Science.gov (United States)

    Al-Fares, Walid

    2016-06-01

    The present study is aimed at characterizing the subsurface geological and tectonic structure in Deir El-Adas area, by using Vertical Electrical Sounding survey (VES) and hydrogeological investigations, in order to determine the causes of the failure for the majority of the wells drilled in the area. The survey data was treated in three different approaches including direct VES inversion, pseudo-2D method and horizontal profiling, in order to maximize the reliability of the data interpretation. The results revealed the presence of a local faulted anticline structure at the top of the Paleogene formation, underneath the basaltic outcrops where Deir El-Adas village is situated. The appearance of this subsurface anticline structure has complicated the local hydro-geological situation, and most likely led to limitation of the groundwater recharge in the area. Moreover, the performed piezometric and discharge maps indicated the presence of a notable groundwater watershed, in addition to feeble water productivity of the wells drilled adjacent to Deir El-Adas, mostly related to the subsurface geological and tectonic settings in the area.

  3. Near infrared organic light-emitting diodes based on acceptor-donor-acceptor (ADA) using novel conjugated isatin Schiff bases

    Energy Technology Data Exchange (ETDEWEB)

    Taghi Sharbati, Mohammad, E-mail: m.t.sharbati@sutech.ac.i [Department of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz (Iran, Islamic Republic of); Soltani Rad, Mohammad Navid, E-mail: soltani@sutech.ac.i [Department of Chemistry, Shiraz University of Technology, Shiraz 71555-313 (Iran, Islamic Republic of); Behrouz, Somayeh [Department of Chemistry, Shiraz University of Technology, Shiraz 71555-313 (Iran, Islamic Republic of); Gharavi, Alireza [Photonics Lab, Department of Electrical and Computer Engineering, Shiraz University, Shiraz (Iran, Islamic Republic of); Emami, Farzin [Department of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz (Iran, Islamic Republic of)

    2011-04-15

    Fabrications of a single layer organic light emitting diodes (OLEDs) based on two conjugated acceptor-donor-acceptor (ADA) isatin Schiff bases are described. The electroluminescent spectra of these materials range from 630 to 700 nm and their band gaps were measured between 1.97 and 1.77 eV. The measured maximum external quantum efficiencies (EQE) for fabricated OLEDs are 0.0515% and 0.054% for two acceptor-donor-acceptor chromophores. The Commission International De L'Eclairage (CIE) (1931) coordinates of these two compounds were attained and found to be (0.4077, 0.4128) and (0.4411, 0.4126) for two used acceptor-donor-acceptor chromophores. The measured I-V curves demonstrated the apparent diode behavior of two ADA chromophores. The turn-on voltages in these OLEDs are directly dependent on the thickness. These results have demonstrated that ADA isatin Schiff bases could be considered as promising electroluminescence-emitting materials for fabrication of OLEDs.

  4. Prolonged pancytopenia in a gene therapy patient with ADA-deficient SCID and trisomy 8 mosaicism: a case report.

    Science.gov (United States)

    Engel, Barbara C; Podsakoff, Greg M; Ireland, Joanna L; Smogorzewska, E Monika; Carbonaro, Denise A; Wilson, Kathy; Shah, Ami; Kapoor, Neena; Sweeney, Mirna; Borchert, Mark; Crooks, Gay M; Weinberg, Kenneth I; Parkman, Robertson; Rosenblatt, Howard M; Wu, Shi-Qi; Hershfield, Michael S; Candotti, Fabio; Kohn, Donald B

    2007-01-15

    A patient with adenosine deaminase-deficient severe combined immune deficiency (ADA-SCID) was enrolled in a study of retroviral-mediated ADA gene transfer to bone marrow hematopoietic stem cells. After the discontinuation of ADA enzyme replacement, busulfan (75 mg/m2) was administered for bone marrow cytoreduction, followed by infusion of autologous, gene-modified CD34+ cells. The expected myelosuppression developed after busulfan but then persisted, necessitating the administration of untransduced autologous bone marrow back-up at day 40. Because of sustained pancytopenia and negligible gene marking, diagnostic bone marrow biopsy and aspirate were performed at day 88. Analyses revealed hypocellular marrow and, unexpectedly, evidence of trisomy 8 in 21.6% of cells. Trisomy 8 mosaicism (T8M) was subsequently diagnosed by retrospective analysis of a pretreatment marrow sample that might have caused the lack of hematopoietic reconstitution. The confounding effects of this preexisting marrow cytogenetic abnormality on the response to gene transfer highlights another challenge of gene therapy with the use of autologous hematopoietic stem cells.

  5. An improved gravity compensation method for high-precision free-INS based on MEC-BP-AdaBoost

    Science.gov (United States)

    Zhou, Xiao; Yang, Gongliu; Wang, Jing; Li, Jing

    2016-12-01

    In recent years, with the rapid improvement of inertial sensors (accelerometers and gyroscopes), gravity compensation has become more important for improving navigation accuracy in inertial navigation systems (INS), especially for high-precision INS. This paper proposes a mind evolutionary computation (MEC) back propagation (BP) AdaBoost algorithm neural-network-based gravity compensation method that estimates the gravity disturbance on the track based on measured gravity data. A MEC-BP-AdaBoost network-based gravity compensation algorithm used in the training process to establish the prediction model takes the carrier position (longitude and latitude) provided by INS as the input data and the gravity disturbance as the output data, and then compensates the obtained gravity disturbance into the INS’s error equations to restrain the position error propagation. The MEC-BP-AdaBoost algorithm can not only effectively avoid BP neural networks being trapped in local extrema, but also perfectly solve the nonlinearity between the input and output data that cannot be solved by traditional interpolation methods, such as least-square collocation (LSC) interpolation. The accuracy and feasibility of the proposed interpolation method are verified through numerical tests. A comparison of several other compensation methods applied in field experiments, including LSC interpolation and traditional BP interpolation, highlights the superior performance of the proposed method. The field experiment results show that the maximum value of the position error can reduce by 28% with the proposed gravity compensation method.

  6. Flow and linear coefficient of thermal expansion of four types of Base Plate waxes compared with ADA standard

    Directory of Open Access Journals (Sweden)

    Monzavi A

    2002-07-01

    Full Text Available Waxes have a lot of applications in dentistry. Such materials are of thermoplastic type that undergoes deformation in different temperatures. Two important properties of base plate waxes are flow and their coefficient of linear thermal expansion. Recently, different institutions, inside the country, produce dentistry waxes, while they have not been standardized. Consequently, consumers' dissatisfaction are observed. In this research, the two above- mentioned factors were compared between three kinds of Iranian waxes with Cavex that is foreign production, based on test number 24 of ADA. To measure the flow rate in the temperatures of 23, 37 and 45°c, Wilcoxon statistical analysis was used. The results showed that in 23°c, the flow rate of Cavex and Azardent waxes met ADA standards; however, it was not true for two others types. In 37°c, the flow of none of the waxes was standardized and in 45°c their flow was acceptable, moreover, thermal expansion coefficient, for Cavex and Azardent types, was based on ADA standard.

  7. Parallel Ada implementation of a multiple-model Kalman-filter tracking system: a software engineering approach. Master's thesis

    Energy Technology Data Exchange (ETDEWEB)

    Lemanski, W.J.

    1989-03-01

    The success of the Strategic Defense Initiative depends directly on significant advances in both computer hardware and software development technologies. Parallel architectures and the Ada programming language have advantages that make them candidates for use in SDI command and control computer systems. This thesis examines those advantages in the context of an SDI-type application: implementation of a Kalman-filter tracking system. This research consists of three parts. The first is a set of software engineering guidelines developed for use in creating parallel designs suitable for implementation in Ada. These guidelines cover the design process from initial problem analysis to final detailed design. Methods of problem decomposition are discussed, as are language partitioning strategies. Justification is provided for using the Ada task construct for process boundaries, and Ada multitasking design issues are reviewed. A parallel software design methodology is also described.

  8. “ILÍADA LATINA”: TRADUÇÀO DA ADAPTAÇÀO RESUMIDA DA “ILÍADA” DE HOMERO

    OpenAIRE

    2016-01-01

    A Ilíada latina é um resumo da Ilíada, da época de Nero. Já no século I a.C., o mito troiano passou a ser cada vez mais conhecido pelo povo através de resumos e adaptações da Ilíada, já que o poema grego era apenas conhecido pela elite. A Ilíada latina foi uma das adaptações mais populares dessa época, e a única desse período que nos chegou bem preservada. Pretendemos neste artigo apresentar a tradução do primeiro livro e focar em certos aspectos a respeito do processo tradutório....

  9. Politically Induced Regulatory Risk and Independent Regulatory Agencies

    OpenAIRE

    Strausz, Roland

    2015-01-01

    Uncertainty in election outcomes generates politically induced regulatory risk. Political parties' risk attitudes towards such risk depend on a fluctuation effect that hurts both parties and an output--expansion effect that benefits at least one party. Notwithstanding the parties' risk attitudes, political parties have incentives to negotiate away all regulatory risk by pre-electoral bargaining. Efficient pre-electoral bargaining outcomes fully eliminate politically induced regulatory risk. P...

  10. Diagnostic value of hydrothorax Mononuclear cell and ADA in tuberculous pleuritis%胸水单核细胞联合胸水 ADA 在结核性胸膜炎中的诊断价值

    Institute of Scientific and Technical Information of China (English)

    张新军; 童朝晖

    2014-01-01

    Objective:To investigate the diagnostic value of hydrothorax ADA and Mononuclear cell in tuberculous pleuritis. Methods:All patients were diagnosed clearly by medical thoracoscopy. Pleural effusion in 120 cases with tuberculous pleurisy and 147 cases with non-tuberculous pleuritis was analyzed and the hydrothorax ADA value and the proportion of Mononuclear cell in pleural ef-fusion were recorded and analyzed through the receiver operator characteristic curve (ROC) in order to find out the optimum critical value to diagnose tuberculous pleuritis and its sensitivity and specificity. Results: Through the ROC curve analysis, the percentage of the area under the curve of pleural effusion Mononuclear cell was 0. 593; when the value was 84. 5% , the diagnostic sensitivity and specificity were 63. 3% and 53. 7% , respectively, thereby indicating that the diagnostic value was lower. Hydrothorax ADA area under the curve was 0. 925, when the value was 28. 7U/ L, the diagnostic sensitivity and specificity were 88. 3% and 90. 5% , respectively, thereby showing a better diagnostic value. When combing the proportion of Mononuclear cell of 84. 5% with the hydrothorax ADA value of 28. 7U/ L, the diagnostic sensitivity, specificity, positive predictive value, and negative predictive value were 57. 5% , 98% , 95. 85 and 73. 8% , respectively; the higher specificity and positive predictive value were helpful to the diagnosis of tuberculous pleuritis. Conclusions: Hydrothorax ADA has a diagnosis value for tuberculous pleurisy. The combination of the formers will contribute to the i-dentification between tuberculous and non tuberculous pleural effusion.%目的:探讨胸水单核细胞联合胸水腺苷脱氨酶(EC:3.5.4.4 adenosine deaminase,ADA)在结核性胸膜炎中的诊断价值。方法:对胸腔镜下明确诊断的120例结核性胸膜炎患者和147例非结核胸膜炎患者胸水进行分析,记录胸水中单核细胞比例及胸水 ADA 数值,通过受试者工作

  11. Diabetes susceptibility at IDDM2 cannot be positively mapped to the VNTR locus of the insulin gene.

    Science.gov (United States)

    Doria, A; Lee, J; Warram, J H; Krolewski, A S

    1996-05-01

    An inconsistency has come to light between the conclusion of Lucassen et al. that IDDM2 (11p15.5) must lie within a 4.1 kilobase (kb) segment at the insulin (INS) locus and their own data showing statistically significant associations between insulin-dependent diabetes mellitus (IDDM) and markers beyond the boundaries of that segment. We present data from an independent study of 201 IDDM patients and 107 non-diabetic control subjects that also show significant association with a marker 5' of the INS locus. Patients and control subjects were genotyped at INS/+ 1140 A/C (a surrogate for the variable number tandem repeat (VNTR) polymorphism in the regulatory part of the INS gene) and a marker 5' of the tyrosine hydroxylase (TH) gene, TH/pINS500-RsaI, making it 10 kb 5' of the VNTR. Homozygotes for INS/ + 1140 allele '+' were significantly more frequent among IDDM patients than among control subjects (73 vs 45%, p < 0.001) giving an odds ratio of 3.3 (95% confidence interval (CI): 2.0-5.3). A very similar association was found for homozygotes for the TH/RsaI allele '+' (53 vs 31%, p < 0.001) giving an odds ratio of 2.6 (95%CI 1.6-4.2). By multilocus analysis, the TH/RsaI allele '+' identified a subset of INS/ + 1140 alleles '+' haplotypes that are more specifically associated with IDDM (odds ratio = 5.4, 95%CI 2.9-10.4) than allele + 1140 '+' as a whole. In conclusion, the segment of chromosome 11 that is associated with IDDM spans, at least, the INS and TH loci. No legitimate claim can be made that IDDM2 corresponds to the VNTR polymorphism at the INS locus until the correct boundaries for IDDM2 have been defined and other loci within them have been excluded as determinants of IDDM.

  12. Crossing the SJL lambda locus into kappa-knockout mice reveals a dysfunction of the lambda 1-containing immunoglobulin receptor in B cell differentiation.

    OpenAIRE

    Kim, J. Y.; Kurtz, B; Huszar, D; Storb, U

    1994-01-01

    Mice of the SJL strain produce approximately 50 times less serum lambda 1 immunoglobulin light chains than other mouse strains. The defect is genetically linked to the lambda locus, but it is unknown whether it is due to regulatory alterations or known structural changes. We find no mutation in the SJL lambda 3-1 enhancer which regulates both lambda 1 and lambda 3. To investigate the defect further, the production of lambda light chains was amplified by crossing SJL with kappa-knockout mice. ...

  13. Analysis of long-range interactions in primary human cells identifies cooperative CFTR regulatory elements.

    Science.gov (United States)

    Moisan, Stéphanie; Berlivet, Soizik; Ka, Chandran; Le Gac, Gérald; Dostie, Josée; Férec, Claude

    2016-04-07

    A mechanism by which control DNA elements regulate transcription over large linear genomic distances is by achieving close physical proximity with genes, and looping of the intervening chromatin paths. Alterations of such regulatory 'chromatin looping' systems are likely to play a critical role in human genetic disease at large. Here, we studied the spatial organization of a ≈790 kb locus encompassing the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Dysregulation of CFTR is responsible for cystic fibrosis, which is the most common lethal genetic disorder in Caucasian populations. CFTR is a relatively large gene of 189 kb with a rather complex tissue-specific and temporal expression profile. We used chromatin conformation at the CFTR locus to identify new DNA sequences that regulate its transcription. By comparing 5C chromatin interaction maps of the CFTR locus in expressing and non-expressing human primary cells, we identified several new contact points between the CFTR promoter and its surroundings, in addition to regions featuring previously described regulatory elements. We demonstrate that two of these novel interacting regions cooperatively increase CFTR expression, and suggest that the new enhancer elements located on either side of the gene are brought together through chromatin looping via CTCF.

  14. The sae locus of Staphylococcus aureus controls exoprotein synthesis at the transcriptional level.

    Science.gov (United States)

    Giraudo, A T; Cheung, A L; Nagel, R

    1997-07-01

    Agr and sar are known regulatory loci of Staphylococcus aureus that control the production of several extracellular and cell-wall-associated proteins. A pleiotropic insertional mutation in S. aureus, designated sae, that leads to the production of drastically diminished levels of alpha- and beta-hemolysins and coagulase and slightly reduced levels of protein A has been described. The study of the expression of the genes coding for these exoproteins in the sae::Tn551 mutant (carried out in this work by Northern blot analyses) revealed that the genes for alpha- and beta-hemolysins (hla and hlb) and coagulase (coa) are not transcribed and that the gene for protein A (spa) is transcribed at a somewhat reduced level. These results indicate that the sae locus regulates these exoprotein genes at the transcriptional level. Northern blot analyses also show that the sae mutation does not affect the expression of agr or sar regulatory loci. An sae::Tn551 agr::tetM double mutant has been phenotypically characterized as producing reduced or null levels of alpha-, beta-, and delta-hemolysins, coagulase, and high levels of protein A. Northern blot analyses carried out in this work with the double mutant revealed that hla, hlb, hld, and coa genes are not transcribed, while spa is transcribed at high levels. The fact that coa is not expressed in the sae agr mutant, as in the sae parental strain, while spa is expressed at the high levels characteristic of the agr parental strain, suggests that sae and agr interact in a complex way in the control of the expression of the genes of several exoproteins.

  15. Clinical research: regulatory issues.

    Science.gov (United States)

    Wermeling, D P

    1999-02-01

    The regulatory issues faced by institutions performing clinical research are described. Many institutions do not have on staff an expert who understands the regulatory issues involved in managing investigational new drug research and who knows the institution's obligations under the federal rules. Because pharmacists understand the FDA regulations that apply to the management of drugs in clinical research, institutions are asking pharmacists to expand their role and manage clinical research offices. Many authorities govern various aspects of investigational drug research. FDA has published regulations for good clinical practice (GCP), and the International Conference on Harmonisation is developing an international standard for the proper management of clinical trials. The guidelines published by the Joint Commission on Accreditation of Healthcare Organizations aim to protect patients who are in the institution to receive health care and also participate in clinical trials. The Social Security Administration Acts specifically state that only items and services that are reasonable and necessary for the diagnosis and treatment of injury or disease can be billed to the government; research-related billings are excluded from coverage. Proper management of drug research is crucial to the success of a research program that is integrated with patient care.

  16. Toxicogenomics in regulatory ecotoxicology

    Science.gov (United States)

    Ankley, Gerald T.; Daston, George P.; Degitz, Sigmund J.; Denslow, Nancy D.; Hoke, Robert A.; Kennedy, Sean W.; Miracle, Ann L.; Perkins, Edward J.; Snape, Jason; Tillitt, Donald E.; Tyler, Charles R.; Versteeg, Donald

    2006-01-01

    Recently, we have witnessed an explosion of different genomic approaches that, through a combination of advanced biological, instrumental, and bioinformatic techniques, can yield a previously unparalleled amount of data concerning the molecular and biochemical status of organisms. Fueled partially by large, well-publicized efforts such as the Human Genome Project, genomic research has become a rapidly growing topical area in multiple biological disciplines. Since 1999, when the term “toxicogenomics” was coined to describe the application of genomics to toxicology (1), a rapid increase in publications on the topic has occurred (Figure 1). The potential utility of toxicogenomics in toxicological research and regulatory activities has been the subject of scientific discussions and, as with any new technology, has evoked a wide range of opinion (2–6). VIEWPOINT © 2006 american chemical Society july 1, 2006 / EnvironmEntal SciEncE & tEchnology n 4055 The purpose of this feature article is to consider the roles of toxicogenomics in the field of regulatory ecotoxicology, explore current limitations in the science and practice of genomics, and propose possible avenues to approach and resolve some of the major challenges. A significant amount of input to our analysis came from a workshop sponsored by the Society of Environmental Toxicology and Chemistry (SETAC) in Pellston, Mich., in September 2005. A complete list of names and affiliations of the experts participating in that workshop is provided online in Table 1 of the Supporting Information for this paper.

  17. Identification of a novel locus for a USH3 like syndrome combined with congenital cataract

    DEFF Research Database (Denmark)

    Dad, S.; Østergaard, Elsebet; Thykjær, T.;

    2010-01-01

    Danish family of Dutch descent, we have identified a novel locus for a rare USH3-like syndrome. The affected family members have a unique association of retinitis pigmentosa, progressive hearing impairment, vestibular dysfunction, and congenital cataract. The phenotype is similar, but not identical...... to that of USH3 patients, as congenital cataract has not been reported for USH3. By homozygosity mapping, we identified a 7.3 Mb locus on chromosome 15q22.2-23 with a maximum multipoint LOD score of 2.0. The locus partially overlaps with the USH1 locus, USH1H, a novel unnamed USH2 locus, and the non...

  18. Quantitative Trait Locus and Genetical Genomics Analysis Identifies Putatively Causal Genes for Fecundity and Brooding in the Chicken.

    Science.gov (United States)

    Johnsson, Martin; Jonsson, Kenneth B; Andersson, Leif; Jensen, Per; Wright, Dominic

    2015-12-04

    Life history traits such as fecundity are important to evolution because they make up components of lifetime fitness. Due to their polygenic architectures, such traits are difficult to investigate with genetic mapping. Therefore, little is known about their molecular basis. One possible way toward finding the underlying genes is to map intermediary molecular phenotypes, such as gene expression traits. We set out to map candidate quantitative trait genes for egg fecundity in the chicken by combining quantitative trait locus mapping in an advanced intercross of wild by domestic chickens with expression quantitative trait locus mapping in the same birds. We measured individual egg fecundity in 232 intercross chickens in two consecutive trials, the second one aimed at measuring brooding. We found 12 loci for different aspects of egg fecundity. We then combined the genomic confidence intervals of these loci with expression quantitative trait loci from bone and hypothalamus in the same intercross. Overlaps between egg loci and expression loci, and trait-gene expression correlations identify 29 candidates from bone and five from hypothalamus. The candidate quantitative trait genes include fibroblast growth factor 1, and mitochondrial ribosomal proteins L42 and L32. In summary, we found putative quantitative trait genes for egg traits in the chicken that may have been affected by regulatory variants under chicken domestication. These represent, to the best of our knowledge, some of the first candidate genes identified by genome-wide mapping for life history traits in an avian species.

  19. RESEARCH CONCERNING THE GENETIC STRUCTURE OF ROMANIAN SIMENTAL AND MARAMURES BROWN BREEEDS AT THE PITUITARY TRANSCRIPTION FACTOR LOCUS

    Directory of Open Access Journals (Sweden)

    VIORICA COSIER

    2013-12-01

    Full Text Available Pituitary transcription factor Pit-1, which belongs to a large POU domain family is a positive regulatory factor of growth hormone, prolactin and thyrotropin β-subunit in the mammalian pituitary. Therefore, the gene encoding Pit-1 was chosen as a candidate gene to investigate its association with lactation performance in cattle. The present study was carried out to establish the genetic structure at this locus in two Romanian cattle breeds: Romanian Simmental and Maramures Brown, to establish the possible association between genotype and milk yield and conformation traits. A strategy employing polymerase chain reaction was used to amplify a 1355- pb fragment from blood DNA and digestion with HinfI enzyme and the genetic structure was estimated for both breeds.

  20. The locus of microRNA-10b

    Science.gov (United States)

    Biagioni, Francesca; Bossel Ben-Moshe, Noa; Fontemaggi, Giulia; Yarden, Yosef; Domany, Eytan; Blandino, Giovanni

    2013-01-01

    Contemporary microRNA research has led to significant advances in our understanding of the process of tumorigenesis. MicroRNAs participate in different events of a cancer cell’s life, through their ability to target hundreds of putative transcripts involved in almost every cellular function, including cell cycle, apoptosis, and differentiation. The relevance of these small molecules is even more evident in light of the emerging linkage between their expression and both prognosis and clinical outcome of many types of human cancers. This identifies microRNAs as potential therapeutic modifiers of cancer phenotypes. From this perspective, we overview here the miR-10b locus and its involvement in cancer, focusing on its role in the establishment (miR-10b*) and spreading (miR-10b) of breast cancer. We conclude that targeting the locus of microRNA 10b holds great potential for cancer treatment. PMID:23839045

  1. Externality and locus of control in obese children.

    Science.gov (United States)

    Isbitsky, J R; White, D R

    1981-03-01

    Fifty-nine obese and normal-weight children, aged 8-12 years were compared on two dimensions of "externality," previously examined in obese adults. Significant sex difference indicated that boys generally ate more than girls and held more internal locus of control expectancies. However, obese and normal-weight children were not differentiated by their performance on either a food-related or three nonfood-related measures of external-cue responsiveness, nor by their locus of control expectancies. Furthermore, the various measures were neither strongly nor consistently intercorrelated, providing little support for the notion of a single underlying dimension of "externality." The contribution of physiological, sensory, cognitive-motivational, and sociocultural parameters to the regulation of eating behavior was discussed.

  2. Two-locus inbreeding measures for recurrent selection.

    Science.gov (United States)

    Choy, S C; Weir, B S

    1977-03-01

    For a population undergoing recurrent selection, a method is presented for determining the average inbreeding coefficients at the end of each breeding cycle. The coefficients are derived in terms of probability measures that genes are identical by descent. For the one-locus case, two digametic measures are defined and employed in the derivation of a recurrence formula for the inbreeding coefficient. Two further classes of measures, trigametic and quadrigametic, are required for transition from one cycle to the previous one to allow the calculation of the inbreeding function for the two-locus case. Numerical values of the average probability of double identity by descent for populations with various imposed assumptions are listed to illustrate the effects of linkage and population size on the accrual of inbreeding and hence of homozygosity.

  3. Fine-mapping of an Arabidopsis cell death mutation locus

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    An Arabidopsis cell death mutation locus was mapped to chromosome 2 between IGS1 and mi421. The YAC clone ends, CIC9A3R, CIC11C7L, CIC2G5R and RFLP marker CDs3 within this interval, were used to probe TAMU BAC library and 31 BAC clones were obtained. A BAC contig encompassing the mutation locus, which consists of T6P5, T7M23, T12A21, T8L6 and T18A18, was identified by Southern hybridization with the BAC ends as probes. 11 CAPS and 12 STS markers were developed in this region. These results will facilitate map-based cloning of the genes and sequencing of the genomic DNA in this region.

  4. Fine-mapping of an Arabidopsis cell death mutation locus

    Institute of Scientific and Technical Information of China (English)

    牟中林; 戴亚; 李家洋

    2000-01-01

    An Arabidopsis cell death mutation locus was mapped to chromosome 2 between lGS1 and mi421. The YAC clone ends, CIC9A3R, CIC11C7L, CIC2G5R and RFLP marker CDs3 within this interval, were used to probe TAMU BAC library and 31 BAC clones were obtained. A BAC contig encompassing the mutation locus, which consists of T6P5, T7M23, T12A21, T8L6 and T18A18, was identified by Southern hybridization with the BAC ends as probes. 11 CAPS and 12 STS markers were developed in this region. These results will facilitate map-based cloning of the genes and sequencing of the genomic DNA in this region.

  5. Refined localization of the Prieto-syndrome locus

    Energy Technology Data Exchange (ETDEWEB)

    Martinez, F.; Prieto, F. [Unidad de Genetica, Valencia (Spain); Gal, A. [Universitaets-Krankenhaus Eppendorf, Hamburg (Germany)

    1996-07-12

    PRS designates the locus for a syndromal form of X-linked mental retardation (Prieto syndrome) characterized by minor facial anomalies, ear malformation, abnormal growth of teeth, clinodactyly, sacral dimple, patellar luxation, malformation of lower limbs, abnormalities of the fundus of the eye, and subcortical cerebral atrophy. Linkage analysis localized the disease locus between DXS84 (Xp21.1) and DXS255. Here we present additional linkage data that provide further support and refinement of this localization. Individual III-18 gave birth to a male, currently aged 2 7/12 years, who clearly shows delayed psychomotor development. He began to walk at 23 months and his speech is delayed. In addition, he shows the characteristic facial anomalies, {open_quotes}dysplastic{close_quotes} ears, sacral dimple, and clinodactyly, as do all other affected males in this family. 7 refs., 1 tab.

  6. Recent Advances of Flowering Locus T Gene in Higher Plants

    OpenAIRE

    Shuiyuan Cheng; Feng Xu; Xiaofeng Rong; Xiaohua Huang

    2012-01-01

    Flowering Locus T (FT) can promote flowering in the plant photoperiod pathway and also facilitates vernalization flowering pathways and other ways to promote flowering. The expression of products of the FT gene is recognized as important parts of the flowering hormone and can induce flowering by long-distance transportation. In the present study, many FT-like genes were isolated, and the transgenic results show that FT gene can promote flowering in plants. This paper reviews the progress of t...

  7. Male-pattern baldness susceptibility locus at 20p11.

    NARCIS (Netherlands)

    Richards, J.B.; Yuan, X.; Geller, F.; Waterworth, D.; Bataille, V.; Glass, D.; Song, K.; Waeber, G.; Vollenweider, P.; Aben, K.K.H.; Kiemeney, L.A.L.M.; Walters, B.; Soranzo, N.; Thorsteinsdottir, U.; Kong, A.; Rafnar, T.; Deloukas, P.; Sulem, P.; Stefansson, H.; Stefansson, K.; Spector, T.D.; Mooser, V.

    2008-01-01

    We conducted a genome-wide association study for androgenic alopecia in 1,125 men and identified a newly associated locus at chromosome 20p11.22, confirmed in three independent cohorts (n = 1,650; OR = 1.60, P = 1.1 x 10(-14) for rs1160312). The one man in seven who harbors risk alleles at both 20p1

  8. Community and law: identifying the locus of law in community

    OpenAIRE

    Yaylali, Mustafa

    2012-01-01

    "Community and law approach" provides an illuminating insight into alternative legal orderings within a social unit. The comprehensiveness of legal systems within a community or a social unit, provides a suitable basis for a structural framework of alternative legal systems or Legal Pluralism, which is missing in the discourse on Legal Pluralism. "Identifying the locus of law within a community", provides us with an indication on how autopoetic a legal system can be within a social unit, taki...

  9. Resultados del tratamiento a pacientes con tríada terrible del codo

    Directory of Open Access Journals (Sweden)

    Héctor Gabriel Díaz Carrillo

    2015-04-01

    Full Text Available La luxación del codo, asociada a la fractura del proceso coronoideo y a la fractura de la cabeza radial, es denominada “tríada terrible del codo”, debido a la complejidad al abordar el tratamiento correcto y lo desalentador de los resultados que se obtienen con el mismo. Se realizó un estudio prospectivo, donde se recogen los resultados postoperatorios, obtenidos en cuatro pacientes con inestabilidad traumática aguda del codo, tratados entre enero de 2012 y mayo de 2013, que acudieron inicialmente al cuerpo de guardia del Hospital General Docente “Dr. Ernesto Guevara de La Serna” y tuvieron un seguimiento medio de ocho meses. El proceder consistió en reparación de la coronoides, del ligamento lateral externo, reparación de la cúpula radial, cupulectomía y colocación de pin endomedular; la técnica operatoria a emplear se definió por los estudios radiográficos realizados y los hallazgos en el transcurso del proceder. Los pacientes, tres hombres y una mujer, tuvieron cinco codos lesionados y un promedio de edad de 34 años. Como resultado del tratamiento la flexión fue normal entre 130-135° en 4 codos y limitada en uno a 110°, la extensión se encontró limitada de 8 a 21° en todos los pacientes, la pronosupinación se mantuvo limitada en todos los casos entre 5 y 22°. La intervención quirúrgica mediante fijación y reparación de los estabilizadores del codo proporcionó a corto plazo una funcionabilidad del codo cercana a la normalidad, los pacientes evolucionaron positivamente. Las complicaciones fueron: reluxación, infección local y aflojamiento de la osteosíntesis

  10. Associations between a locus downstream DRD1 gene and cerebrospinal fluid dopamine metabolite concentrations in psychosis.

    Science.gov (United States)

    Andreou, Dimitrios; Söderman, Erik; Axelsson, Tomas; Sedvall, Göran C; Terenius, Lars; Agartz, Ingrid; Jönsson, Erik G

    2016-04-21

    Dopamine activity, mediated by the catecholaminergic neurotransmitter dopamine, is prominent in the human brain and has been implicated in schizophrenia. Dopamine targets five different receptors and is then degraded to its major metabolite homovanillic acid (HVA). We hypothesized that genes encoding dopamine receptors may be associated with cerebrospinal fluid (CSF) HVA concentrations in patients with psychotic disorder. We searched for association between 67 single nucleotide polymorphisms (SNPs) in the five dopamine receptor genes i.e., DRD1, DRD2, DRD3, DRD4 and DRD5, and the CSF HVA concentrations in 74 patients with psychotic disorder. Nominally associated SNPs were also tested in 111 healthy controls. We identified a locus, located downstream DRD1 gene, where four SNPs, rs11747728, rs11742274, rs265974 and rs11747886, showed association with CSF HVA concentrations in psychotic patients. The associations between rs11747728, which is a regulatory region variant, and rs11742274 with HVA remained significant after correction for multiple testing. These associations were restricted to psychotic patients and were absent in healthy controls. The results suggest that the DRD1 gene is implicated in the pathophysiology of psychosis and support the dopamine hypothesis of schizophrenia.

  11. Super-Enhancers at the Nanog Locus Differentially Regulate Neighboring Pluripotency-Associated Genes.

    Science.gov (United States)

    Blinka, Steven; Reimer, Michael H; Pulakanti, Kirthi; Rao, Sridhar

    2016-09-27

    Super-enhancers are tissue-specific cis-regulatory elements that drive expression of genes associated with cell identity and malignancy. A cardinal feature of super-enhancers is that they are transcribed to produce enhancer-derived RNAs (eRNAs). It remains unclear whether super-enhancers robustly activate genes in situ and whether their functions are attributable to eRNAs or the DNA element. CRISPR/Cas9 was used to systematically delete three discrete super-enhancers at the Nanog locus in embryonic stem cells, revealing functional differences in Nanog transcriptional regulation. One distal super-enhancer 45 kb upstream of Nanog (-45 enhancer) regulates both nearest neighbor genes, Nanog and Dppa3. Interestingly, eRNAs produced at the -45 enhancer specifically regulate Dppa3 expression by stabilizing looping of the -45 enhancer and Dppa3. Our work illustrates that genomic editing is required to determine enhancer function and points to a method to selectively target a subset of super-enhancer-regulated genes by depleting eRNAs.

  12. Sixteen additional enhancers associated with the chicken Sox2 locus outside the central 50-kb region.

    Science.gov (United States)

    Okamoto, Ryuji; Uchikawa, Masanori; Kondoh, Hisato

    2015-01-01

    The transcription factor Sox2 plays a central role in the regulation of neuro-sensory development, and many other developmental processes. To gain an in depth understanding of the Sox2 gene regulation, we previously investigated the Sox2-proximal 50-kb region of the chicken genome to determine enhancers based on functional assays using chicken embryo electroporation. We identified 11 enhancers with specificity for neuro-sensory tissues. In this study, we extended the analysis of Sox2 locus-associated enhancers to a 200-kb region and identified 16 additional enhancers with functions in neuro-sensory development. These enhancers roughly correspond to a fraction of the sequence blocks that are highly conserved between chicken and mammalian genomes. The neural enhancers were activated in sequence, thereby creating a complex pattern of functional overlaps in the developing central nervous system (CNS). The variations in the specificities of the sensory enhancers also reflected the intermediate steps of sensory tissue development. This study provides an example where a single transcription factor gene has numerous regulatory elements that allow it to fulfill many functional roles in different biological contexts.

  13. Bistability and hysteresis of the 'Secteur' differentiation are controlled by a two-gene locus in Nectria haematococca

    Directory of Open Access Journals (Sweden)

    Daboussi Marie-Josée

    2004-08-01

    Full Text Available Abstract Background Bistability and hysteresis are increasingly recognized as major properties of regulatory networks governing numerous biological phenomena, such as differentiation and cell cycle progression. The full scope of the underlying molecular mechanisms leading to bistability and hysteresis remains elusive. Nectria haemaotcocca, a saprophytic or pathogenic fungus with sexual reproduction, exhibits a bistable morphological modification characterized by a reduced growth rate and an intense pigmentation. Bistability is triggered by the presence or absence of σ, a cytoplasmic determinant. This determinant spreads in an infectious manner in the hyphae of the growing margin, insuring hysteresis of the differentiation. Results Seven mutants specifically affected in the generation of σ were selected through two different screening strategies. The s1 and s2 mutations completely abolish the generation of σ and of its morphological expression, the Secteur. The remaining five mutations promote its constitutive generation, which determines an intense pigmentation but not growth alteration. The seven mutations map at the same locus, Ses (for 'Secteur-specific'. The s2 mutant was obtained by an insertional mutagenesis strategy, which permitted the cloning of the Ses locus. Sequence and transcription analysis reveals that Ses is composed of two closely linked genes, SesA, mutated in the s1 and s2 mutant strains, and SesB, mutated in the s* mutant strains. SesB shares sequence similarity with animal and fungal putative proteins, with potential esterase/lipase/thioesterase activity, whereas SesA is similar to proteins of unknown function present only in the filamentous fungi Fusarium graminearum and Podospora anserina. Conclusions The cloning of Ses provides evidence that a system encoded by two linked genes directs a bistable and hysteretic switch in a eukaryote. Atypical regulatory relations between the two proteins may account for the hysteresis

  14. Identification of novel craniofacial regulatory domains located far upstream ofSOX9and disrupted in Pierre Robin sequence

    OpenAIRE

    2014-01-01

    Mutations in the coding sequence of SOX9 cause campomelic dysplasia (CD), a disorder of skeletal development associated with 46,XY disorders of sex development (DSDs). Translocations, deletions and duplications within a ~2 Mb region upstream of SOX9 can recapitulate the CD-DSD phenotype fully or partially, suggesting the existence of an unusually large cis-regulatory control region. Pierre Robin sequence (PRS) is a craniofacial disorder that is frequently an endophenotype of CD and a locus fo...

  15. 75 FR 54210 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of...

    Science.gov (United States)

    2010-09-03

    ...-2010-032] Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of... Transactions August 30, 2010. On June 17, 2010, the Financial Industry Regulatory Authority, Inc....

  16. Regulatory mark; Marco regulatorio

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-10-15

    This chapter is based on a work performed in distinct phases. The first phase consisted in of the analysis regulatory legislation existent in Brazil for the sugar-alcohol sector since the beginning of the X X century. This analysis allowed the identification of non existent points and legal devices related to the studied aspects, and that were considered as problematic for the sector expansion. In the second phase, related treaties and international agreements was studied and possible obstacles for the brazilian bio ethanol exportation for the international market. Initiatives were examined at European Union, United States of America, Caribbean and countries of the sub-Saharan Africa. In this phase, policies were identified related to the incentives and adoption of use of bio fuels added to the gasoline in countries or group of countries considered as key for the consolidation of bio ethanol as a world commodity.

  17. Identification of novel craniofacial regulatory domains located far upstream of SOX9 and disrupted in Pierre Robin sequence.

    Science.gov (United States)

    Gordon, Christopher T; Attanasio, Catia; Bhatia, Shipra; Benko, Sabina; Ansari, Morad; Tan, Tiong Y; Munnich, Arnold; Pennacchio, Len A; Abadie, Véronique; Temple, I Karen; Goldenberg, Alice; van Heyningen, Veronica; Amiel, Jeanne; FitzPatrick, David; Kleinjan, Dirk A; Visel, Axel; Lyonnet, Stanislas

    2014-08-01

    Mutations in the coding sequence of SOX9 cause campomelic dysplasia (CD), a disorder of skeletal development associated with 46,XY disorders of sex development (DSDs). Translocations, deletions, and duplications within a ∼2 Mb region upstream of SOX9 can recapitulate the CD-DSD phenotype fully or partially, suggesting the existence of an unusually large cis-regulatory control region. Pierre Robin sequence (PRS) is a craniofacial disorder that is frequently an endophenotype of CD and a locus for isolated PRS at ∼1.2-1.5 Mb upstream of SOX9 has been previously reported. The craniofacial regulatory potential within this locus, and within the greater genomic domain surrounding SOX9, remains poorly defined. We report two novel deletions upstream of SOX9 in families with PRS, allowing refinement of the regions harboring candidate craniofacial regulatory elements. In parallel, ChIP-Seq for p300 binding sites in mouse craniofacial tissue led to the identification of several novel craniofacial enhancers at the SOX9 locus, which were validated in transgenic reporter mice and zebrafish. Notably, some of the functionally validated elements fall within the PRS deletions. These studies suggest that multiple noncoding elements contribute to the craniofacial regulation of SOX9 expression, and that their disruption results in PRS.

  18. Regulatory considerations for biosimilars

    Directory of Open Access Journals (Sweden)

    Ranjani Nellore

    2010-01-01

    Full Text Available Currently there is considerable interest in the legislative debate around generic biological drugs or "biosimilars" in the EU and US due to the large, lucrative market that it offers to the industry. While some countries have issued a few regulatory guidelines as well as product specific requirements, there is no general consensus as to a single, simple mechanism similar to the bioequivalence determination that leads to approval of generic small molecules all over the world. The inherent complex nature of the molecules, along with complicated manufacturing and analytical techniques to characterize them make it difficult to rely on a single human pharmacokinetic study for assurance of safety and efficacy. In general, the concept of comparability has been used for evaluation of the currently approved "similar" biological where a step by step assessment on the quality, preclinical and clinical aspects is made. In India, the focus is primarily on the availability and affordability of life-saving drugs. In this context every product needs to be evaluated on its own merit irrespective of the innovator brand. The formation of the National Biotechnology Regulatory Authority may provide a step in the right direction for regulation of these complex molecules. However, in order to have an efficient machinery for initial approval and ongoing oversight with a country-specific focus, cooperation with international authorities for granting approvals and continuous risk-benefit review is essential. Several steps are still needed for India to be perceived as a country that leads the world in providing quality biological products.

  19. Application of AdaBoost algorithm in multi -attribute secondary classification :Taking data set of magic gamma telescope for example%AdaBoost算法在多属性二分类问题中的应用——以魇术伽马望远镜数据集为例

    Institute of Scientific and Technical Information of China (English)

    刘金花; 刘明启; 黄晓花

    2012-01-01

    AdaBoost algorithm was adopted to test data set of magic gamma telescope according to classification. The experiment proves the feasibility of AdaBoost algorithm in multi attribute secondary classification. Compared with other classification method, AdaBoost algorithm has similar accuracy to Random Forest algorithm in handling multi attribute secondary classification and better than SVM and NN.%采用AdaBoost算法对魔术伽马望远镜数据集进行分类测试,通过实验证明了AdaBoost算法在多属性二分类问题中应用的可行性,并与其他分类方法进行比较,表明AdaBoost算法在处理多属性二分类问题时,AdaBoost算法的精确度与Random Forest算法相似,优于SVM以及NN等其他算法。

  20. Locus de Controle e escolha do método anticoncepcional Locus de Control y método anticonceptivo elegido Locus of Control and choice of contraceptive method

    Directory of Open Access Journals (Sweden)

    Aline Salheb Alves

    2007-06-01

    Full Text Available Objetivou-se avaliar a relação entre o Locus de Controle e o tipo de método contraceptivo escolhido. Foi utilizada a Escala Multidimensional de Locus de Controle de Levenson e entrevistadas 191 mulheres. As usuárias de preservativo masculino apresentaram maior Internalidade do que as usuárias de injetável mensal. Quanto ao locus Externalidade Outros Poderosos, as usuárias de implante apresentavam menor externalidade do que as usuárias de preservativo masculino, laqueadura, injetável trimestral e DIU. Considerando-se o locus Externalidade Acaso, as usuárias de implante apresentaram menores escores do que as mulheres que optaram pela laqueadura, injetável trimestral e DIU. Observou-se ainda, menor Externalidade Acaso entre as usuárias de injetável mensal em relação às mulheres que fizeram opção pelo injetável trimestral.El objetivo es validar la relación entre el Locus de Control y el tipo de método anticonceptivo elegido. Fue usada la Escala Multidimensional de Locus de Control de Levenson. Fueron entrevistadas 191 mujeres. Las usuarias de condón masculino presentaron Internalidad más grande que las usuarias de inyectable mensual. Considerado el Locus Externalidad - Otro poderoso, las usuarias de implante presentaron menor externalidad de que las usuarias de condón masculino, laqueadura, inyectable trimestral y DIU. Considerado el Locus Externalidad - Quizá, las usuarias del implante presentaron menores resultados que las mujeres que eligieron por la laqueadura, inyectable trimestral y DIU. Se observo que las mujeres usuarias de inyectable mensual presentaron menor Externalidad - Quizá que las mujeres usuarias de inyectable trimestral.The purpose was to assess the relationship between locus of control and the contraceptive method chosen. It was used the Levenson's Multidimensional Locus of Control Scale and 191 women was interviewed. Users of male condoms presented greater Internality than the monthly contraceptive

  1. Flexible long-range loops in the VH gene region of the Igh locus facilitate the generation of a diverse antibody repertoire.

    Science.gov (United States)

    Medvedovic, Jasna; Ebert, Anja; Tagoh, Hiromi; Tamir, Ido M; Schwickert, Tanja A; Novatchkova, Maria; Sun, Qiong; Huis In 't Veld, Pim J; Guo, Chunguang; Yoon, Hye Suk; Denizot, Yves; Holwerda, Sjoerd J B; de Laat, Wouter; Cogné, Michel; Shi, Yang; Alt, Frederick W; Busslinger, Meinrad

    2013-08-22

    The immunoglobulin heavy-chain (Igh) locus undergoes large-scale contraction in pro-B cells, which facilitates VH-DJH recombination by juxtaposing distal VH genes next to the DJH-rearranged gene segment in the 3' proximal Igh domain. By using high-resolution mapping of long-range interactions, we demonstrate that local interaction domains established the three-dimensional structure of the extended Igh locus in lymphoid progenitors. In pro-B cells, these local domains engaged in long-range interactions across the Igh locus, which depend on the regulators Pax5, YY1, and CTCF. The large VH gene cluster underwent flexible long-range interactions with the more rigidly structured proximal domain, which probably ensures similar participation of all VH genes in VH-DJH recombination to generate a diverse antibody repertoire. These long-range interactions appear to be an intrinsic feature of the VH gene cluster, because they are still generated upon mutation of the Eμ enhancer, IGCR1 insulator, or 3' regulatory region in the proximal Igh domain.

  2. Sequence and organization of coelacanth neurohypophysial hormone genes: Evolutionary history of the vertebrate neurohypophysial hormone gene locus

    Directory of Open Access Journals (Sweden)

    Brenner Sydney

    2008-03-01

    Full Text Available Abstract Background The mammalian neurohypophysial hormones, vasopressin and oxytocin are involved in osmoregulation and uterine smooth muscle contraction respectively. All jawed vertebrates contain at least one homolog each of vasopressin and oxytocin whereas jawless vertebrates contain a single neurohypophysial hormone called vasotocin. The vasopressin homolog in non-mammalian vertebrates is vasotocin; and the oxytocin homolog is mesotocin in non-eutherian tetrapods, mesotocin and [Phe2]mesotocin in lungfishes, and isotocin in ray-finned fishes. The genes encoding vasopressin and oxytocin genes are closely linked in the human and rodent genomes in a tail-to-tail orientation. In contrast, their pufferfish homologs (vasotocin and isotocin are located on the same strand of DNA with isotocin gene located upstream of vasotocin gene separated by five genes, suggesting that this locus has experienced rearrangements in either mammalian or ray-finned fish lineage, or in both lineages. The coelacanths occupy a unique phylogenetic position close to the divergence of the mammalian and ray-finned fish lineages. Results We have sequenced a coelacanth (Latimeria menadoensis BAC clone encompassing the neurohypophysial hormone genes and investigated the evolutionary history of the vertebrate neurohypophysial hormone gene locus within a comparative genomics framework. The coelacanth contains vasotocin and mesotocin genes like non-mammalian tetrapods. The coelacanth genes are present on the same strand of DNA with no intervening genes, with the vasotocin gene located upstream of the mesotocin gene. Nucleotide sequences of the second exons of the two genes are under purifying selection implying a regulatory function. We have also analyzed the neurohypophysial hormone gene locus in the genomes of opossum, chicken and Xenopus tropicalis. The opossum contains two tandem copies of vasopressin and mesotocin genes. The vasotocin and mesotocin genes in chicken and

  3. Regulatory Foci and Organizational Commitment

    Science.gov (United States)

    Markovits, Yannis; Ullrich, Johannes; van Dick, Rolf; Davis, Ann J.

    2008-01-01

    We use regulatory focus theory to derive specific predictions regarding the differential relationships between regulatory focus and commitment. We estimated a structural equation model using a sample of 520 private and public sector employees and found in line with our hypotheses that (a) promotion focus related more strongly to affective…

  4. Regulatory focus in groupt contexts

    NARCIS (Netherlands)

    Faddegon, Krispijn Johannes

    2009-01-01

    The thesis examines the influence of group processes on the regulatory focus of individual group members. It is demonstrated that the group situation can affect group members' regulatory focus both in a top-down fashion (via the identitiy of the group) and in a bottom-up fashion (emerging from the g

  5. Disclosure as a regulatory tool

    DEFF Research Database (Denmark)

    2006-01-01

    The chapter analyses how disclure can be used as a regulatory tool and analyses how it has been applied so far in the area of financial market law and consumer law.......The chapter analyses how disclure can be used as a regulatory tool and analyses how it has been applied so far in the area of financial market law and consumer law....

  6. 75 FR 30453 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving...

    Science.gov (United States)

    2010-06-01

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving..., Financial Industry Regulatory Authority, Inc. (``FINRA'') (f/k/a National Association of Securities Dealers... National Association of Securities Dealers, Inc., the Financial Industry Regulatory Authority, Inc., or...

  7. 75 FR 40000 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving...

    Science.gov (United States)

    2010-07-13

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving Proposed Rule Change Relating to the Restated Certificate of Incorporation of Financial Industry Regulatory Authority, Inc. July 2, 2010. On May 21, 2010, Financial Industry Regulatory Authority, Inc....

  8. 75 FR 11166 - Joint Meeting of the Nuclear Regulatory Commission and the Federal Energy Regulatory Commission...

    Science.gov (United States)

    2010-03-10

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Joint Meeting of the Nuclear Regulatory Commission and the Federal Energy Regulatory Commission; Notice of Joint Meeting of the Nuclear Regulatory Commission and...

  9. Regulatory Streamlining and Improvement

    Energy Technology Data Exchange (ETDEWEB)

    Mark A. Carl

    2006-07-11

    The Interstate Oil and Gas Compact Commission (IOGCC) engaged in numerous projects outlined under the scope of work discussed in the United States Department of Energy (DOE) grant number DE-FC26-04NT15456 awarded to the IOGCC. Numerous projects were completed that were extremely valuable to state oil and gas agencies as a result of work performed utilizing resources provided by the grant. There are numerous areas in which state agencies still need assistance. This additional assistance will need to be addressed under future scopes of work submitted annually to DOE's Project Officer for this grant. This report discusses the progress of the projects outlined under the grant scope of work for the 2005-2006 areas of interest, which are as follows: Area of Interest No. 1--Regulatory Streamlining and Improvement: This area of interest continues to support IOGCC's regulatory streamlining efforts that include the identification and elimination of unnecessary duplications of efforts between and among state and federal programs dealing with exploration and production on public lands. Area of Interest No. 2--Technology: This area of interest seeks to improve efficiency in states through the identification of technologies that can reduce costs. Area of Interest No. 3--Training and Education: This area of interest is vital to upgrading the skills of regulators and industry alike. Within the National Energy Policy, there are many appropriate training and education opportunities. Education was strongly endorsed by the President's National Energy Policy Development group. Acting through the governors offices, states are very effective conduits for the dissemination of energy education information. While the IOGCC favors the development of a comprehensive, long-term energy education plan, states are also supportive of immediate action on important concerns, such as energy prices, availability and conservation. Area of Interest No. 4--Resource Assessment and

  10. Notas sobre lógica e dialética na Enéada de Plotino

    OpenAIRE

    Oliveira, Loraine

    2007-01-01

    Este trabalho objetiva caracterizar a lógica e a dialética, conforme a Enéada I, 3 [20] 4-5. Para Plotino, a lógica consiste em um conjunto de procedimentos que trata de proposições e silogismos. A dialética é um método que faz uso dos procedimentos lógicos. Mas é também uma disposição que permite compreender a estrutura do inteligível. Por conseguinte, é um caminho de ascensão rumo ao Uno. Neste sentido, tem um aspecto ético.

  11. Notas sobre lógica e dialética na Enéada de Plotino

    OpenAIRE

    Oliveira, Loraine

    2011-01-01

    Este trabalho objetiva caracterizar a lógica e a dialética, conforme a Enéada I, 3 [20] 4-5. Para Plotino, a lógica consiste em um conjunto de procedimentos que trata de proposições e silogismos. A dialética é um método que faz uso dos procedimentos lógicos. Mas é também uma disposição que permite compreender a estrutura do inteligível. Por conseguinte, é um caminho de ascensão rumo ao Uno. Neste sentido, tem um aspecto ético.

  12. Calçada da fome: sobre os anjos e os mortos no Passeio da Glória

    OpenAIRE

    Caminha, José Guimarães; UERJ

    2017-01-01

    Resumo: Nesta reflexão sobre ontologias visuais, transita-se entre as fotografias antigas de pessoas provavelmente já mortas e o mercado vivo das ruas do Rio de Janeiro, notadamente no bairro da Glória, onde se observa o trabalho dos trapeiros numa área conhecida como “calçada da fome”. É nesse espaço intertextual/intermidial que a cidade transforma-se num palco no qual se descortinam os modos de sobrevivência do flâneur e do passante, do trapeiro e do colecionador, e de tantos outros persona...

  13. The construction of a normative scale of locus of control

    Directory of Open Access Journals (Sweden)

    Johann M. Schepers

    2005-10-01

    Full Text Available The primary objective of the study was to construct a normative scale of locus of control for use with students and adults. A corollary of the study was to establish the personality, interest and cognitive correlates of locus of control. Conceptually the instrument is based on attribution theory and on social learning theory. The first edition of the Locus of Control Inventory (LCI was applied to 356 first-year university students during 1994. A factor analysis of the 65 items of the inventory yielded three factors. The factors were interpreted as Autonomy, Internal Control and External Control. Three scales, corresponding to the three factors, were constructed, and yielded reliability coefficients of 0,80; 0,77 and 0,81 respectively. Following this the cognitive, interest and personality correlates of the LCI were determined. The implications of the findings are discussed. Opsomming Die hoofdoel van die studie was die konstruksie van ’n normatiewe skaal van lokus van beheer vir gebruik met studente en volwassenes. ’n Newe-doelwit van die studie was om die persoonlikheids-, belangstellings- en kognitiewe korrelate van lokus van beheer te bepaal. Konseptueel is die instrument op attribusieteorie en sosiale-leerteorie gebaseer. Die eerste-uitgawe van die Lokus van Beheervraelys (LvB is op 356 eerstejaaruniversiteitstudente toegepas gedurende 1994. ’n Faktorontleding van die 65 items van die vraelys is gedoen en het drie faktore opgelewer. Die faktore is as Outonomie, Interne Beheer en Eksterne Beheer geïnterpreteer. Voorts is drie skale wat ooreenstem met die drie faktore, gekonstrueer en het betroubaarhede van 0,80; 0,77 en 0,81, onderskeidelik, opgelewer. Vervolgens is die kognitiewe, belangstellings- en persoonlikheidskorrelate van die LvB bepaal. Die implikasies van die bevindinge word bespreek.

  14. Gene amplification of the Hps locus in Glycine max

    Directory of Open Access Journals (Sweden)

    Kuflu Kuflom

    2006-03-01

    Full Text Available Abstract Background Hydrophobic protein from soybean (HPS is an 8 kD cysteine-rich polypeptide that causes asthma in persons allergic to soybean dust. HPS is synthesized in the pod endocarp and deposited on the seed surface during development. Past evidence suggests that the protein may mediate the adherence or dehiscence of endocarp tissues during maturation and affect the lustre, or glossiness of the seed surface. Results A comparison of soybean germplasm by genomic DNA blot hybridization shows that the copy number and structure of the Hps locus is polymorphic among soybean cultivars and related species. Changes in Hps gene copy number were also detected by comparative genomic DNA hybridization using cDNA microarrays. The Hps copy number polymorphisms co-segregated with seed lustre phenotype and HPS surface protein in a cross between dull- and shiny-seeded soybeans. In soybean cultivar Harosoy 63, a minimum of 27 ± 5 copies of the Hps gene were estimated to be present in each haploid genome. The isolation and analysis of genomic clones indicates that the core Hps locus is comprised of a tandem array of reiterated units, with each 8.6 kb unit containing a single HPS open reading frame. Conclusion This study shows that polymorphisms at the Hps locus arise from changes in the gene copy number via gene amplification. We present a model whereby Hps copy number modulates protein expression levels and seed lustre, and we suggest that gene amplification may result from selection pressures imposed on crop plants.

  15. The barley Frost resistance-H2 locus.

    Science.gov (United States)

    Pasquariello, Marianna; Barabaschi, Delfina; Himmelbach, Axel; Steuernagel, Burkhard; Ariyadasa, Ruvini; Stein, Nils; Gandolfi, Francesco; Tenedini, Elena; Bernardis, Isabella; Tagliafico, Enrico; Pecchioni, Nicola; Francia, Enrico

    2014-03-01

    Frost resistance-H2 (Fr-H2) is a major QTL affecting freezing tolerance in barley, yet its molecular basis is still not clearly understood. To gain a better insight into the structural characterization of the locus, a high-resolution linkage map developed from the Nure × Tremois cross was initially implemented to map 13 loci which divided the 0.602 cM total genetic distance into ten recombination segments. A PCR-based screening was then applied to identify positive bacterial artificial chromosome (BAC) clones from two genomic libraries of the reference genotype Morex. Twenty-six overlapping BACs from the integrated physical-genetic map were 454 sequenced. Reads assembled in contigs were subsequently ordered, aligned and manually curated in 42 scaffolds. In a total of 1.47 Mbp, 58 protein-coding sequences were identified, 33 of which classified according to similarity with sequences in public databases. As three complete barley C-repeat Binding Factors (HvCBF) genes were newly identified, the locus contained13 full-length HvCBFs, four Related to AP2 Triticeae (RAPT) genes, and at least five CBF pseudogenes. The final overall assembly of Fr-H2 includes more than 90 % of target region: all genes were identified along the locus, and a general survey of Repetitive Elements obtained. We believe that this gold-standard sequence for the Morex Fr-H2 will be a useful genomic tool for structural and evolutionary comparisons with Fr-H2 in winter-hardy cultivars along with Fr-2 of other Triticeae crops.

  16. Regulating regulatory T cells.

    Science.gov (United States)

    Le, N T; Chao, N

    2007-01-01

    Regulatory T cells (Tregs) are a specialized subpopulation of T cells that act to suppress activation of other immune cells and thereby maintain immune system homeostasis, self-tolerance as well as control excessive response to foreign antigens. The mere concept of Tregs was the subject of significant controversy among immunologists for many years owing to the paucity of reliable markers for defining these cells and the ambiguity of the nature and molecular basis of suppressive phenomena. However, recent advances in the molecular characterization of this cell population have firmly established their existence and their vital role in the vertebrate immune system. Of interest, accumulating evidence from both humans and experimental animal models has implicated the involvement of Tregs in the development of graft-versus-host disease (GVHD). The demonstration that Tregs could separate GVHD from graft-versus-tumor (GVT) activity suggests that their immunosuppressive potential could be manipulated to reduce GVHD without detrimental consequence on GVT effect. Although a variety of T lymphocytes with suppressive capabilities have been reported, the two best-characterized subsets are the naturally arising, intrathymic-generated Tregs (natural Tregs) and the peripherally generated, inducible Tregs (inducible Tregs). This review summarizes our current knowledge of the generation, function and regulation of these two populations of Tregs during an immune response. Their role in the development of GVHD and their therapeutic potential for the prevention and treatment of GVHD will also be described.

  17. Internationalization of regulatory requirements.

    Science.gov (United States)

    Juillet, Y

    2003-02-01

    The aim of harmonisation of medicines regulatory requirements is to allow the patient quicker access to new drugs and to avoid animal and human duplications. Harmonisation in the European Union (EU) is now completed, and has led to the submission of one dossier in one language study leading to European marketing authorizations, thanks in particular to efficacy guidelines published at the European level. With the benefit of the European experience since 1989, more than 40 guidelines have been harmonised amongst the EU, Japan and the USA through the International Conference on Harmonisation (ICH). ICH is a unique process gathering regulators and industry experts from the three regions. Its activity is built on expertise and trust. The Common Technical Document (CTD), an agreed common format for application in the three regions, is a logical follow-up to the ICH first phase harmonising the content of the dossier. The CTD final implementation in July 2003 will have considerable influence on the review process and on the exchange of information in the three regions.

  18. Recent advances of flowering locus T gene in higher plants.

    Science.gov (United States)

    Xu, Feng; Rong, Xiaofeng; Huang, Xiaohua; Cheng, Shuiyuan

    2012-01-01

    Flowering Locus T (FT) can promote flowering in the plant photoperiod pathway and also facilitates vernalization flowering pathways and other ways to promote flowering. The expression of products of the FT gene is recognized as important parts of the flowering hormone and can induce flowering by long-distance transportation. In the present study, many FT-like genes were isolated, and the transgenic results show that FT gene can promote flowering in plants. This paper reviews the progress of the FT gene and its expression products to provide meaningful information for further studies of the functions of FT genes.

  19. 基于AdaBoost的多特征融合指纹检索方法%Fingerprint Retrieval Method of Multi-feature Fusion Based on AdaBoost

    Institute of Scientific and Technical Information of China (English)

    王富丽; 欧阳建权

    2012-01-01

    为提高视频内容检索方法的鲁棒性,提出一种基于AdaBoost的多特征融合指纹检索方法.通过对样本数据的训练,自适应地获得尺度不变特征变换特征、运动特征以及音频特征的权重,利用得到的权重融合音视频特征,以产生视频指纹.实验结果表明,该方法的准确性较高,在尺度变化、亮度变化、音频噪音攻击下具有较好的鲁棒性.%This paper proposes a fingerprint retrieval method of multi-feature fusion based on AdaBoost to improve the robust of video fingerprint. The proposed method can gain the weight of Scale Invariant Feature Transform(SIFT), temporal and audio feature adaptively by training the sample data, then fuse audio-video feature to produce video fingerprint according to the weights of the three features. Experimental results show that this method can gain higher accuracy, and have good robustness under various geometric, brightness modification and audio noise.

  20. Characterization of the transcriptional regulation of the tarIJKL locus involved in ribitol-containing wall teichoic acid biosynthesis in Lactobacillus plantarum.

    Science.gov (United States)

    Tomita, S; Lee, I-C; van Swam, I I; Boeren, S; Vervoort, J; Bron, P A; Kleerebezem, M

    2016-02-01

    Lactobacillus plantarum strains produce either glycerol (Gro)- or ribitol (Rbo)-backbone wall teichoic acid (WTA) (Gro-WTA and Rbo-WTA, respectively). The strain WCFS1 has been shown to be able to activate the tarIJKL locus involved in Rbo-WTA synthesis when the tagD1F1F2 locus for Gro-WTA synthesis was mutated, resulting in switching of the native Gro-WTA into Rbo-WTA. Here, we identify a regulator involved in the WTA backbone alditol switching and activation of the tarIJKL locus. Promoter reporter assays of the tarI promoter (Ptar) demonstrated its activity in the Rbo-WTA-producing mutant derivative (ΔtagF1-2) but not in the parental strain WCFS1. An electrophoresis mobility shift assay using a Ptar nucleotide fragment showed that this fragment bound to Ptar-binding protein(s) in a cell-free extract of WCFS1. Three proteins were subsequently isolated using Ptar bound to magnetic beads. These proteins were isolated efficiently from the lysate of WCFS1 but not from the lysate of its ΔtagF1-2 derivative, and were identified as redox-sensitive transcription regulator (Lp_0725), catabolite control protein A (Lp_2256) and TetR family transcriptional regulator (Lp_1153). The role of these proteins in Ptar regulation was investigated by knockout mutagenesis, showing that the Δlp_1153 mutant expressed the tarI gene at a significantly higher level, supporting its role as a repressor of the tarIJKL locus. Notably, the Δlp_1153 mutation also led to reduced expression of the tagF1 gene. These results show that Lp_1153 is a regulatory factor that plays a role in WTA alditol switching in Lb. plantarum WCFS1 and we propose to rename this gene/protein wasR/WasR, for WTA alditol switch regulator.

  1. Synthesis of an A-D-A type of molecule used as electron acceptor for improving charge transfer in organic solar cells

    Science.gov (United States)

    Zhang, Chao-Zhi; Gu, Shu-Duo; Shen, Dan; Yuan, Yang; Zhang, Mingdao

    2016-08-01

    Electron-accepting molecules play an important role in developing organic solar cells. A new type of A-D-A molecule, 3,6-di([7-(5-bromothiophen-2-yl)-1,5,2,4,6,8-dithiotetrazocin-3-yl]thiophen-2-yl)-9-(2-ethylhexyl)carbazole, was synthesized. The lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) energy levels are -3.55 and -5.85 eV, respectively. Therefore, the A-D-A type of compound could be used as electron acceptor for fabricating organic solar cell with a high open circuit voltage. Gibbs free energy (-49.2 kJ/mol) reveals that the process of A-D-A acceptor accepting an electron from poly(3-hexylthiophene) at excited state is spontaneous. The value of entropy (118 J/mol) in the process of an electron transferring from P3HT to the A-D-A acceptor at organic interface suggests that electrons generated from separation of electron-hole pairs at donor/acceptor interface would be delocalized efficiently. Therefore, the A-D-A molecule would be a potential acceptor for efficient organic BHJ solar cells.

  2. Healthcare regulatory concepts in Brazil.

    Science.gov (United States)

    Oliveira, Robson Rocha de; Elias, Paulo Eduardo Mangeon

    2012-06-01

    The healthcare regulatory concepts used in Brazilian scientific publications on healthcare management were reviewed. A typo-logical classification for regulatory concepts was developed from the most current ideas in five disciplines: life sciences, law, economics, sociology and political science. Four ideas stood out: control, balance, adaptation and direction, with greatest emphasis on the technical nature of regulation. The political nature of regulation was secondary. It was considered that dis-cussion of healthcare regulatory concepts was connected with comprehension of the role that the state plays in this sector. De-finition of the forms of state intervention is the key convergence point between the different ways of conceptualizing healthcare regulation.

  3. A cis-regulatory antisense RNA represses translation in Vibrio cholerae through extensive complementarity and proximity to the target locus.

    Science.gov (United States)

    Chang, Howard; Replogle, John Michael; Vather, Naomi; Tsao-Wu, Maya; Mistry, Ronak; Liu, Jane M

    2015-01-01

    As with all facultative pathogens, Vibrio cholerae must optimize its cellular processes to adapt to different environments with varying carbon sources and to environmental stresses. More specifically, in order to metabolize mannitol, V. cholerae must regulate the synthesis of MtlA, a mannitol transporter protein produced exclusively in the presence of mannitol. We previously showed that a cis-acting small RNA (sRNA) expressed by V. cholerae, MtlS, appears to post-transcriptionally downregulate the expression of mtlA and is produced in the absence of mannitol. We hypothesized that since it is complementary to the 5' untranslated region (UTR) of mtlA mRNA, MtlS may affect synthesis of MtlA by forming an mtlA-MtlS complex that blocks translation of the mRNA through occlusion of its ribosome binding site. To test this hypothesis, we used in vitro translation assays in order to examine the role MtlS plays in mtlA regulation and found that MtlS is sufficient to suppress translation of transcripts harboring the 5' UTR of mtlA. However, in a cellular context, the 5' UTR of mtlA is not sufficient for targeted repression by endogenous MtlS; additional segments from the coding region of mtlA play a role in the ability of the sRNA to regulate translation of mtlA mRNA. Additionally, proximity of transcription sites between the sRNA and mRNA significantly affects the efficacy of MtlS.

  4. Locus de control y conocimiento, actitud y práctica contraceptivas entre adolescentes universitarios

    OpenAIRE

    Aline Salheb Alves; Maria Helena Baena de Moraes Lopes

    2010-01-01

    OBJECTIVE: To assess the relationship between locus of control and knowledge, attitude and practice regarding pill and condom use among university students. METHODS: The inquiry was developed in Campinas, a city in Southeastern Brazil, in 2006. A total of 295 adolescent newcomers to a public university answered a structured questionnaire and Levenson's multidimensional locus of control scale. The scores of the dimensions of locus of control were calculated and Spearman's correlation coefficie...

  5. Locus ceruleus neurons in people with autism contain no histochemically-detectable mercury

    OpenAIRE

    2015-01-01

    Exposure to environmental mercury has been proposed to play a part in autism. Mercury is selectively taken up by the human locus ceruleus, a region of the brain that has been implicated in autism. We therefore looked for the presence of mercury in the locus ceruleus of people who had autism, using the histochemical technique of autometallography which can detect nanogram amounts of mercury in tissues. In addition, we sought evidence of damage to locus ceruleus neurons in autism by immunostain...

  6. AdaBoost算法在多属性二分类问题中的应用——以魇术伽马望远镜数据集为例

    Institute of Scientific and Technical Information of China (English)

    刘金花; 刘明启; 黄晓花

    2012-01-01

    采用AdaBoost算法对魔术伽马望远镜数据集进行分类测试,通过实验证明了AdaBoost算法在多属性二分类问题中应用的可行性,并与其他分类方法进行比较,表明AdaBoost算法在处理多属性二分类问题时,AdaBoost算法的精确度与Random Forest算法相似,优于SVM以及NN等其他算法。

  7. The Danish Regulatory Reform of Telecommunications

    DEFF Research Database (Denmark)

    Skouby, Knud Erik

    1998-01-01

    An overview of the liberalisation process and regulatory reform of telecommunications in Denmark......An overview of the liberalisation process and regulatory reform of telecommunications in Denmark...

  8. A locus-wide approach to assessing variation in the avian MHC: the B-locus of the wild turkey.

    Science.gov (United States)

    Chaves, L D; Faile, G M; Hendrickson, J A; Mock, K E; Reed, K M

    2011-07-01

    Studies of major histocompatibility complex (MHC) diversity in non-model vertebrates typically focus on structure and sequence variation in the antigen-presenting loci: the highly variable and polymorphic class I and class IIB genes. Although these studies provide estimates of the number of genes and alleles/locus, they often overlook variation in functionally related and co-inherited genes important in the immune response. This study utilizes the sequence of the MHC B-locus derived from a commercial turkey to investigate MHC variation in wild birds. Sequences were obtained for nine interspersed MHC amplicons (non-class I/II) from each of 40 birds representing 3 subspecies of wild turkey (Meleagris gallopavo). Analysis of aligned sequences identified 238 single-nucleotide variants approximately one-third of which had minor allele frequencies >0.2 in the sampled birds. PHASE analysis identified 70 prospective MHC haplotypes in the wild turkeys, whereas a combined analysis with commercial birds identified almost 100 haplotypes in the species. Denaturing gradient gel electrophoresis (DGGE) of the class IIB loci was used to test the efficacy of single-nucleotide polymorphism (SNP) haplotyping to capture locus-wide variation. Diversity in SNP haplotypes and haplotype sharing among individuals was directly reflected in the DGGE patterns. Utilization of a reference haplotype to sequence interspersed regions of the MHC has significant advantages over other methods of surveying diversity while identifying high-frequency SNPs for genotyping. SNP haplotyping provides a means to identify both divergent haplotypes and homozygous individuals for assessment of immunological variation in wild and domestic populations.

  9. Altered E-NTPDase/E-ADA activities and CD39 expression in platelets of sickle cell anemia patients.

    Science.gov (United States)

    Castilhos, Lívia G; Doleski, Pedro H; Adefegha, Stephen A; Becker, Lara V; Ruchel, Jader B; Leal, Daniela B R

    2016-04-01

    Sickle cell anemia (SCA) is a hemoglobinopathy characterized by hemolysis and vaso-occlusions caused by rigidly distorted red blood cells. Sickle cell crisis is associated with extracellular release of nucleotides and platelets, which are critical mediators of hemostasis participating actively in purinergic thromboregulatory enzymes system.This study aimed to investigate the activities of purinergic system ecto-enzymes present on the platelet surface as well as CD39 and CD73 expressions on platelets of SCA treated patients. Fifteen SCA treated patients and 30 health subjects (control group) were selected. Ecto-nucleoside triphosphate diphosphohydrolase (E-NTPDase), ecto-5'-nucleotidase (E-5'-NT) and ecto-adenosine deaminase (E-ADA) activities were measured in platelets isolated from these individuals. Results demonstrated an increase of 41 % in the E-NTPDase for ATP hydrolysis, 52% for ADP hydrolysis and 60 % in the E-ADA activity in SCA patients (P<0.05); however, a two folds decrease in the CD39 expression in platelets was observed in the same group (P<0.01). The increased E-NTPDase activity could be a compensatory mechanism associated with the low expression of CD39 in platelets. Besides, alteration of these enzymes activities suggests that the purinergic system could be involved in the thromboregulatory process in SCA patients.

  10. Modeling and Implementing Two-Stage AdaBoost for Real-Time Vehicle License Plate Detection

    Directory of Open Access Journals (Sweden)

    Moon Kyou Song

    2014-01-01

    Full Text Available License plate (LP detection is the most imperative part of the automatic LP recognition system. In previous years, different methods, techniques, and algorithms have been developed for LP detection (LPD systems. This paper proposes to automatical detection of car LPs via image processing techniques based on classifier or machine learning algorithms. In this paper, we propose a real-time and robust method for LPD systems using the two-stage adaptive boosting (AdaBoost algorithm combined with different image preprocessing techniques. Haar-like features are used to compute and select features from LP images. The AdaBoost algorithm is used to classify parts of an image within a search window by a trained strong classifier as either LP or non-LP. Adaptive thresholding is used for the image preprocessing method applied to those images that are of insufficient quality for LPD. This method is of a faster speed and higher accuracy than most of the existing methods used in LPD. Experimental results demonstrate that the average LPD rate is 98.38% and the computational time is approximately 49 ms.

  11. Geographic distribution of haplotype diversity at the bovine casein locus

    Directory of Open Access Journals (Sweden)

    Moazami-Goudarzi Katy

    2004-03-01

    Full Text Available Abstract The genetic diversity of the casein locus in cattle was studied on the basis of haplotype analysis. Consideration of recently described genetic variants of the casein genes which to date have not been the subject of diversity studies, allowed the identification of new haplotypes. Genotyping of 30 cattle breeds from four continents revealed a geographically associated distribution of haplotypes, mainly defined by frequencies of alleles at CSN1S1 and CSN3. The genetic diversity within taurine breeds in Europe was found to decrease significantly from the south to the north and from the east to the west. Such geographic patterns of cattle genetic variation at the casein locus may be a result of the domestication process of modern cattle as well as geographically differentiated natural or artificial selection. The comparison of African Bos taurus and Bos indicus breeds allowed the identification of several Bos indicus specific haplotypes (CSN1S1*C-CSN2*A2-CSN3*AI/CSN3*H that are not found in pure taurine breeds. The occurrence of such haplotypes in southern European breeds also suggests that an introgression of indicine genes into taurine breeds could have contributed to the distribution of the genetic variation observed.

  12. Allelism of Genes in the Ml-a locus

    DEFF Research Database (Denmark)

    Giese, Nanna Henriette; Jensen, Hans Peter; Jørgensen, Jørgen Helms

    1980-01-01

    Seven barley lines or varieties, each with a different gene at the Ml-a locus for resistance to Erysiphe graminis were intercrossed. Progeny testing of the F2s using two different fungal isolates per cross provided evidence that there are two or more loci in the Ml-a region. Apparent recombinants...... were also screened for recombination between the Hor1 and Hor2 loci which are situated either side of the Ml-a locus. The cross between Ricardo and Iso42R (Rupee) yielded one possible recombinant, with Ml-a3 and Ml-a(Rul) in the coupling phase; other recombinants had wild-type genes in the coupling...... phase. Iso20R, derived from Hordeum spontaneum 'H204', carrying Ml-a6, had an additional gene, in close coupling with Ml-a6, tentatively named Ml-aSp2 or Reglv, causing an intermediate infection type with isolate EmA30. It is suggested that Ml-a(Ar) in Emir and Ml-a(Rul), shown to differ from other Ml...

  13. Mox: a novel modifier of the tomato Xa locus.

    Science.gov (United States)

    Peterson, P W; Yoder, J I

    1995-01-01

    We have isolated a novel mutation that caused variegated leaf color in a tomato plant which had multiple maize Ac transposable elements and the tomato Xa allele. Xa is a previously characterized semi-dominant mutation that causes tomato leaves to be bright yellow when heterozygous (Xa/xa+). The mutation responsible for the new phenotype was named Mox (Modifier of Xa). The Mox mutation modified the Xa/xa+ yellow leaf phenotype in two ways: it compensated for the Xa allele resulting in a plant with a wildtype green color, and it caused somatic variegation which appeared as white and yellow sectors on the green background. Somatic variegation was visible only if the plant contained both the Mox and Xa loci. Genetic studies indicated that the Mox locus was linked in repulsion to Xa and that the Mox locus was genetically transmitted at a reduced frequency through the male gamete. Molecular characterization of the Ac elements in lines segregating for Mox identified an Ac insertion that appeared to cosegregate with Mox variegation. We propose a model in which the Mox mutation consists of a duplication of the xa+ allele and subsequent Ac-induced breakage of the duplicated region causes variegation.

  14. Variation at the TERT locus and predisposition for cancer.

    Science.gov (United States)

    Baird, Duncan M

    2010-05-18

    Telomerase and the control of telomere length are intimately linked to the process of tumourigenesis in humans. Here I review the evidence that variation at the 5p15.33 locus, which contains the TERT gene (encoding the catalytic subunit of telomerase), might play a role in the determination of cancer risk. Mutations in the coding regions of TERT can affect telomerase activity and telomere length, and create severe clinical phenotypes, including bone marrow failure syndromes and a substantive increase in cancer frequency. Variants within the TERT gene have been associated with increased risk of haematological malignancies, including myelodysplastic syndrome and acute myeloid leukaemia as well as chronic lymphocytic leukaemia. Furthermore, there is good evidence from a number of independent genome-wide association studies to implicate variants at the 5p15.33 locus in cancer risk at several different sites: lung cancer, basal cell carcinoma and pancreatic cancer show strong associations, while bladder, prostate and cervical cancer and glioma also show risk alleles in this region. Thus, multiple independent lines of evidence have implicated variation in the TERT gene as a risk factor for cancer. The mechanistic basis of these risk variants is yet to be established; however, the basic biology suggests that telomere length control is a tantalising candidate mechanism underlying cancer risk.

  15. Cynomolgus macaque (Macaca fascicularis) immunoglobulin heavy chain locus description.

    Science.gov (United States)

    Yu, Guo-Yun; Mate, Suzanne; Garcia, Karla; Ward, Michael D; Brueggemann, Ernst; Hall, Matthew; Kenny, Tara; Sanchez-Lockhart, Mariano; Lefranc, Marie-Paule; Palacios, Gustavo

    2016-07-01

    Cynomolgus macaques (Macaca fascicularis) have become an important animal model for biomedical research. In particular, it is the animal model of choice for the development of vaccine candidates associated with emerging dangerous pathogens. Despite their increasing importance as animal models, the cynomolgus macaque genome is not fully characterized, hindering molecular studies for this model. More importantly, the lack of knowledge about the immunoglobulin (IG) locus organization directly impacts the analysis of the humoral response in cynomolgus macaques. Recent advances in next generation sequencing (NGS) technologies to analyze IG repertoires open the opportunity to deeply characterize the humoral immune response. However, the IG locus organization for the animal is required to completely dissect IG repertoires. Here, we describe the localization and organization of the rearranging IG heavy (IGH) genes on chromosome 7 of the cynomolgus macaque draft genome. Our annotation comprises 108 functional genes which include 63 variable (IGHV), 38 diversity (IGHD), and 7 joining (IGHJ) genes. For validation, we provide RNA transcript data for most of the IGHV genes and all of the annotated IGHJ genes, as well as proteomic data to validate IGH constant genes. The description and annotation of the rearranging IGH genes for the cynomolgus macaques will significantly facilitate scientific research. This is particularly relevant to dissect the immune response during vaccination or infection with dangerous pathogens such as Ebola, Marburg and other emerging pathogens where non-human primate models play a significant role for countermeasure development.

  16. Synaptic potentials in locus coeruleus neurons in brain slices.

    Science.gov (United States)

    Williams, J T; Bobker, D H; Harris, G C

    1991-01-01

    Neurons of the locus coeruleus (LC) fire action potentials spontaneously in vitro in the absence of any stimulation. This spontaneous activity is thought to arise from intrinsic membrane properties that include a balance between at least two ion conductances. One is a persistent inward sodium current that is active near the threshold for action potential generation. The second is a calcium-dependent potassium current that is activated following the entry of calcium during the action potential, is responsible for the after-hyperpolarization following the action potential, and decays over a period of 1-2 sec following the action potential. The spontaneous activity of LC neurons can be altered by both excitatory and inhibitory synaptic inputs. One excitatory input has been described that is mediated by glutamate receptors of both the non-NMDA and NMDA subtypes. Inhibitory synaptic potentials include those mediated by GABA (acting on GABAA-receptors), glycine (acting on a strychnine-sensitive receptor) and noradrenaline (acting on alpha 2-adrenoceptors). The presence of synaptic potentials mediated by these transmitters, studied in vitro, correlate with studies made in vivo and with histochemical identification of synaptic inputs to the locus coeruleus.

  17. The discovery of the microphthalmia locus and its gene, Mitf.

    Science.gov (United States)

    Arnheiter, Heinz

    2010-12-01

    The history of the discovery of the microphthalmia locus and its gene, now called Mitf, is a testament to the triumph of serendipity. Although the first microphthalmia mutation was discovered among the descendants of a mouse that was irradiated for the purpose of mutagenesis, the mutation most likely was not radiation induced but occurred spontaneously in one of the parents of a later breeding. Although Mitf might eventually have been identified by other molecular genetic techniques, it was first cloned from a chance transgene insertion at the microphthalmia locus. And although Mitf was found to encode a member of a well-known transcription factor family, its analysis might still be in its infancy had Mitf not turned out to be of crucial importance for the physiology and pathology of many distinct organs, including eye, ear, immune system, bone, and skin, and in particular for melanoma. In fact, near seven decades of Mitf research have led to many insights about development, function, degeneration, and malignancies of a number of specific cell types, and it is hoped that these insights will one day lead to therapies benefitting those afflicted with diseases originating in these cell types.

  18. Regulatory Snapshots: integrative mining of regulatory modules from expression time series and regulatory networks.

    Directory of Open Access Journals (Sweden)

    Joana P Gonçalves

    Full Text Available Explaining regulatory mechanisms is crucial to understand complex cellular responses leading to system perturbations. Some strategies reverse engineer regulatory interactions from experimental data, while others identify functional regulatory units (modules under the assumption that biological systems yield a modular organization. Most modular studies focus on network structure and static properties, ignoring that gene regulation is largely driven by stimulus-response behavior. Expression time series are key to gain insight into dynamics, but have been insufficiently explored by current methods, which often (1 apply generic algorithms unsuited for expression analysis over time, due to inability to maintain the chronology of events or incorporate time dependency; (2 ignore local patterns, abundant in most interesting cases of transcriptional activity; (3 neglect physical binding or lack automatic association of regulators, focusing mainly on expression patterns; or (4 limit the discovery to a predefined number of modules. We propose Regulatory Snapshots, an integrative mining approach to identify regulatory modules over time by combining transcriptional control with response, while overcoming the above challenges. Temporal biclustering is first used to reveal transcriptional modules composed of genes showing coherent expression profiles over time. Personalized ranking is then applied to prioritize prominent regulators targeting the modules at each time point using a network of documented regulatory associations and the expression data. Custom graphics are finally depicted to expose the regulatory activity in a module at consecutive time points (snapshots. Regulatory Snapshots successfully unraveled modules underlying yeast response to heat shock and human epithelial-to-mesenchymal transition, based on regulations documented in the YEASTRACT and JASPAR databases, respectively, and available expression data. Regulatory players involved in

  19. Current Regulations and Regulatory Actions

    Science.gov (United States)

    This site will provide basic information on clean air permitting under the title V operating permits program, provide access to state and regional permitting programs, and maintain access to proposed and final regulatory requirements.

  20. Anti-regulatory T cells

    DEFF Research Database (Denmark)

    Andersen, Mads Hald

    2017-01-01

    Our initial understanding of immune-regulatory cells was based on the discovery of suppressor cells that assure peripheral T-cell tolerance and promote immune homeostasis. Research has particularly focused on the importance of regulatory T cells (Tregs) for immune modulation, e.g. directing host...... responses to tumours or inhibiting autoimmunity development. However, recent studies report the discovery of self-reactive pro-inflammatory T cells—termed anti-regulatory T cells (anti-Tregs)—that target immune-suppressive cells. Thus, regulatory cells can now be defined as both cells that suppress immune......-reactive T cells that recognize such targets may be activated due to the strong activation signal given by their cognate targets. The current review describes the existing knowledge regarding these self-reactive anti-Tregs, providing examples of antigen-specific anti-Tregs and discussing their possible roles...

  1. Regulatory facility guide for Ohio

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, S.S.; Bock, R.E.; Francis, M.W.; Gove, R.M.; Johnson, P.E.; Kovac, F.M.; Mynatt, J.O. [Oak Ridge National Lab., TN (United States); Rymer, A.C. [Transportation Consulting Services, Knoxville, TN (United States)

    1994-02-28

    The Regulatory Facility Guide (RFG) has been developed for the DOE and contractor facilities located in the state of Ohio. It provides detailed compilations of international, federal, and state transportation-related regulations applicable to shipments originating at destined to Ohio facilities. This RFG was developed as an additional resource tool for use both by traffic managers who must ensure that transportation operations are in full compliance with all applicable regulatory requirements and by oversight personnel who must verify compliance activities.

  2. Recognition of epilepsy electro encephalography based on AdaBo ost algorithm%基于AdaBo ost算法的癫痫脑电信号识别∗

    Institute of Scientific and Technical Information of China (English)

    张涛; 陈万忠; 李明阳

    2015-01-01

    Automatic recognition of epilepsy electroencephalography (EEG) signal has become a research focus because of its high efficiency, and many algorithms have been put forward to achieve it. As one of the classic algorithms of boosting algorithm, AdaBoost algorithm has been widely used in face detection and target tracking fields, but the algorithm also has a disadvantage that is its degradation. In order to solve this problem, this paper puts forward three measures to optimize the algorithm by filtering the weak classifiers whose recognition rates are low, introducing the smoothing factor and a weighted correction function. In order to verify the robustness of optimized algorithm, we choose three main parameters, i.e., the number of weak classifier, which is denoted by T;the base of logarithmic function, which is denoted byα;the threshold of weight, which is denoted byβ. The experimental results of optimized AdaBoost show that it has good robustness and high recognition rate. In this paper, we divide the whole process into three steps. The first step is to use the Butterworth digital low-pass filter in which the cutoff frequency of pass band is 40 Hz to filter noise whose frequency is above 40 Hz. The second step is to do feature extraction with the help of wavelet packet decomposition. The third step is to compute the sum of absolute value which are the wavelet packet coefficients of fourth layer, the wavelet package entropy and the sum of signal amplitude square and combine them together to form the feature vector of each EEG. Because the wavelet package entropy is far less than the sum of absolute value and the sum of signal amplitude square, in order to make sure that the entropy reacts in the third step, we use one thousandth of the sum of absolute wavelet packet coefficients, one hundredth of the sum of signal amplitude square and the wavelet package entropy as the weighted feature vector. Finally, we succeed in distinguishing EEGs between epilepsy and normal

  3. Association of Five SNPs at the PARK16 locus as a Susceptibility Locus with Parkinson's Disease for Forensic Application

    Institute of Scientific and Technical Information of China (English)

    CUI Hong-gang; TIAN Xiao-fei; LUO Xiao-guang; LI Feng-rui; ZHU Lan-hui; ZHOU Yi-shu; REN Yan

    2013-01-01

    To investigate the association of five SNPs (rs823083,rs708723,rs4951261,rs823076 and rs16856110) at the PARK16 locus with Parkinson's disease (PD),and to potentiate its forensic application.The genomic DNAs of 215 PD patients and 212 matched controls from the northern Han Chinese population were amplified in two independent PCR systems and subsequently genotyped by digestion with the three endonucleases (Hinf Ⅰ,Nco Ⅰ and Msp Ⅰ).The genetic parameters and association studies were carried out with SPSS 13.0,Haploview version 4.2 and PLINK 1.07 sofiwares.We detected accurately all genotypes in the five SNPs with multiplex PCR-RFLP and mismatched multiplex PCR-RFLP techniques.The genotypes of four SNPs,except for rs823083,were in Hardy-Weinberg equilibrium.The four SNPs,rs16856110,rs4951261,rs708723 and rs823076,which were in linkage equilibrium,should not be associated with PD (P-values ranging from 0.077 to 0.544).The SNPs investigated at the PARK16 locus were not found to be involved in PD-associated blocks in the northern Han Chinese population.The allele distributions of rs708723,rs4951261,rs823076 and rs16856110 in the northern Han Chinese population can be highly polymorphic,which can be applied to genetic analvsis and forensic practices.

  4. Secondary evolution of a self-incompatibility locus in the Brassicaceae genus Leavenworthia.

    Directory of Open Access Journals (Sweden)

    Sier-Ching Chantha

    Full Text Available Self-incompatibility (SI is the flowering plant reproductive system in which self pollen tube growth is inhibited, thereby preventing self-fertilization. SI has evolved independently in several different flowering plant lineages. In all Brassicaceae species in which the molecular basis of SI has been investigated in detail, the product of the S-locus receptor kinase (SRK gene functions as receptor in the initial step of the self pollen-rejection pathway, while that of the S-locus cysteine-rich (SCR gene functions as ligand. Here we examine the hypothesis that the S locus in the Brassicaceae genus Leavenworthia is paralogous with the S locus previously characterized in other members of the family. We also test the hypothesis that self-compatibility in this group is based on disruption of the pollen ligand-producing gene. Sequence analysis of the S-locus genes in Leavenworthia, phylogeny of S alleles, gene expression patterns, and comparative genomics analyses provide support for both hypotheses. Of special interest are two genes located in a non-S locus genomic region of Arabidopsis lyrata that exhibit domain structures, sequences, and phylogenetic histories similar to those of the S-locus genes in Leavenworthia, and that also share synteny with these genes. These A. lyrata genes resemble those comprising the A. lyrata S locus, but they do not function in self-recognition. Moreover, they appear to belong to a lineage that diverged from the ancestral Brassicaceae S-locus genes before allelic diversification at the S locus. We hypothesize that there has been neo-functionalization of these S-locus-like genes in the Leavenworthia lineage, resulting in evolution of a separate ligand-receptor system of SI. Our results also provide support for theoretical models that predict that the least constrained pathway to the evolution of self-compatibility is one involving loss of pollen gene function.

  5. Targeted resequencing and analysis of the Diamond-Blackfan anemia disease locus RPS19.

    Directory of Open Access Journals (Sweden)

    Alvaro Martinez Barrio

    Full Text Available BACKGROUND: The Ribosomal protein S19 gene locus (RPS19 has been linked to two kinds of red cell aplasia, Diamond-Blackfan Anemia (DBA and Transient Erythroblastopenia in Childhood (TEC. Mutations in RPS19 coding sequences have been found in 25% of DBA patients, but not in TEC patients. It has been suggested that non-coding RPS19 sequence variants contribute to the considerable clinical variability in red cell aplasia. We therefore aimed at identifying non-coding variations associated with DBA or TEC phenotypes. METHODOLOGY/PRINCIPAL FINDINGS: We targeted a region of 19'980 bp encompassing the RPS19 gene in a cohort of 89 DBA and TEC patients for resequencing. We provide here a catalog of the considerable, previously unrecognized degree of variation in this region. We identified 73 variations (65 SNPs, 8 indels that all are located outside of the RPS19 open reading frame, and of which 67.1% are classified as novel. We hypothesize that specific alleles in non-coding regions of RPS19 could alter the binding of regulatory proteins or transcription factors. Therefore, we carried out an extensive analysis to identify transcription factor binding sites (TFBS. A series of putative interaction sites coincide with detected variants. Sixteen of the corresponding transcription factors are of particular interest, as they are housekeeping genes or show a direct link to hematopoiesis, tumorigenesis or leukemia (e.g. GATA-1/2, PU.1, MZF-1. CONCLUSIONS: Specific alleles at predicted TFBSs may alter the expression of RPS19, modify an important interaction between transcription factors with overlapping TFBS or remove an important stimulus for hematopoiesis. We suggest that the detected interactions are of importance for hematopoiesis and could provide new insights into individual response to treatment.

  6. Functional characterization of tissue-specific enhancers in the DLX5/6 locus.

    Science.gov (United States)

    Birnbaum, Ramon Y; Everman, David B; Murphy, Karl K; Gurrieri, Fiorella; Schwartz, Charles E; Ahituv, Nadav

    2012-11-15

    Disruption of distaless homeobox 5 and 6 (Dlx5/6) in mice results in brain, craniofacial, genital, ear and limb defects. In humans, chromosomal aberrations in the DLX5/6 region, some of which do not encompass DLX5/6, are associated with split hand/foot malformation 1 (SHFM1) as well as intellectual disability, craniofacial anomalies and hearing loss, suggesting that the disruption of DLX5/6 regulatory elements could lead to these abnormalities. Here, we characterized enhancers in the DLX5/6 locus whose tissue-specific expression and genomic location along with previously characterized enhancers correlate with phenotypes observed in individuals with chromosomal abnormalities. By analyzing chromosomal aberrations at 7q21, we refined the minimal SHFM1 critical region and used comparative genomics to select 26 evolutionary conserved non-coding sequences in this critical region for zebrafish enhancer assays. Eight of these sequences were shown to function as brain, olfactory bulb, branchial arch, otic vesicle and fin enhancers, recapitulating dlx5a/6a expression. Using a mouse enhancer assay, several of these zebrafish enhancers showed comparable expression patterns in the branchial arch, otic vesicle, forebrain and/or limb at embryonic day 11.5. Examination of the coordinates of various chromosomal rearrangements in conjunction with the genomic location of these tissue-specific enhancers showed a correlation with the observed clinical abnormalities. Our findings suggest that chromosomal abnormalities that disrupt the function of these tissue-specific enhancers could be the cause of SHFM1 and its associated phenotypes. In addition, they highlight specific enhancers in which mutations could lead to non-syndromic hearing loss, craniofacial defects or limb malformations.

  7. The rv1184c locus encodes Chp2, an acyltransferase in Mycobacterium tuberculosis polyacyltrehalose lipid biosynthesis.

    Science.gov (United States)

    Touchette, Megan H; Holsclaw, Cynthia M; Previti, Mary L; Solomon, Viven C; Leary, Julie A; Bertozzi, Carolyn R; Seeliger, Jessica C

    2015-01-01

    Trehalose glycolipids are found in many bacteria in the suborder Corynebacterineae, but methyl-branched acyltrehaloses are exclusive to virulent species such as the human pathogen Mycobacterium tuberculosis. In M. tuberculosis, the acyltransferase PapA3 catalyzes the formation of diacyltrehalose (DAT), but the enzymes responsible for downstream reactions leading to the final product, polyacyltrehalose (PAT), have not been identified. The PAT biosynthetic gene locus is similar to that of another trehalose glycolipid, sulfolipid 1. Recently, Chp1 was characterized as the terminal acyltransferase in sulfolipid 1 biosynthesis. Here we provide evidence that the homologue Chp2 (Rv1184c) is essential for the final steps of PAT biosynthesis. Disruption of chp2 led to the loss of PAT and a novel tetraacyltrehalose species, TetraAT, as well as the accumulation of DAT, implicating Chp2 as an acyltransferase downstream of PapA3. Disruption of the putative lipid transporter MmpL10 resulted in a similar phenotype. Chp2 activity thus appears to be regulated by MmpL10 in a relationship similar to that between Chp1 and MmpL8 in sulfolipid 1 biosynthesis. Chp2 is localized to the cell envelope fraction, consistent with its role in DAT modification and possible regulatory interactions with MmpL10. Labeling of purified Chp2 by an activity-based probe was dependent on the presence of the predicted catalytic residue Ser141 and was inhibited by the lipase inhibitor tetrahydrolipstatin (THL). THL treatment of M. tuberculosis resulted in selective inhibition of Chp2 over PapA3, confirming Chp2 as a member of the serine hydrolase superfamily. Efforts to produce in vitro reconstitution of acyltransferase activity using straight-chain analogues were unsuccessful, suggesting that Chp2 has specificity for native methyl-branched substrates.

  8. 21-cm Observations with the NASA ADAS 18-meter Antenna System: Baseline Astronomical Observations and Measurements of Performance Characteristics

    Science.gov (United States)

    Malphrus, B. K.; Combs, M. S.; Kruth, J.

    2001-12-01

    Herein we report astronomical observations made with the NASA Advanced Data Acquisition System (ADAS). The NASA ADAS antenna, located at NASA Goddard Spaceflight Center's Wallops Flight Facility, Virginia, is an 18-meter X-band antenna system that has been primarily used for satellite tracking and served as the telecommunication station for the NASA IUE satellite until ca. 1997. A joint NASA-Morehead State University (MSU)-Kentucky NSF EPSCoR venture has been initiated to upgrade and relocate the antenna system to MSU's Astrophysics Laboratory where it will provide a research instrument and active laboratory for undergraduate students as well as be engaged in satellite tracking missions. As part of the relocation efforts, many systems will be upgraded including replacement of a hydrostatic azimuth bearing with a high-precision electromechanical bearing, a new servo system, and Ku-capable reflector surface. It is widely believed that there are still contributions that small aperture centimeter-wave instruments can make utilizing three primary observing strategies: 1.) longitudinal studies of RF variations in cosmic phenomena, 2.) surveys of large areas of sky, and 3.) fast reactions to transient phenomena. MSU faculty and staff along with NASA engineers re-outfitted the ADAS system with RF systems and upgraded servo controllers during the spring and summer of 2001. Empirical measurements of primary system performance characteristics were made including G/T (at S- and L bands), noise figures, pointing and tracking accuracies, and drive speeds and accelerations. Baseline astronomical observations were made with the MSU L-band receiver using a 6 MHz bandwidth centered at 1420 MHz (21-cm) and observing over a range of frequencies (up to 2.5 MHz, tunable over the 6 MHz window) with a 2048-channel back-end spectrometer, providing up to 1 KHz frequency resolution. Baseline observations of radio sources herein reported include Cygnus A, 3C 157, 3C 48 and the Andromeda

  9. Design of Face Detection System Based on Dual Skin Models and AdaBoost Algorithm%基于双肤色模型和AdaBoost的人脸检测系统设计

    Institute of Scientific and Technical Information of China (English)

    侯顺艳; 郄建敏; 许静

    2014-01-01

    本文在Windows平台下,基于VS2010和Intel开源计算机视觉库OpenCV设计了一个实用的人脸检测系统,实现复杂背景图像中可能存在的人脸区域检测。人脸检测功能的实现主要融合双肤色模型和AdaBoost算法。首先基于YCbCr颜色空间的简单边界模型和高斯模型对图像实现分割并分析处理,实现人脸区域的粗定位。然后对人脸候选区域采用 AdaBoost算法进行精检测。该系统使用简单,检测效果较好。%A practical face detection system which is based on VS2010 and Intel open source computer vision library (OpenCV) under the platfrom of windows.was designed. It shoud bring out the face region detection in the complex backgroud image which may consist of face regions. The realization of face detection function is mainly fusion of dual skin models and Adaboost algorithm. The image segemention of skin region was firstly got based on a smiple boundary skin model and Gaussian skin color model in the YCbCr color space. The face coarse region location was determined by using the results of skin color segmentaion. Combining Adaboost algorithm, the accurate candidate face region was acquired secondly. This system is easy to use and has better detection.

  10. Evolution of an Expanded Sex Determining Locus in Volvox

    Science.gov (United States)

    Ferris, Patrick; Olson, Bradley J.S.C.; De Hoff, Peter L.; Douglass, Stephen; Diaz-Cano, David Casero; Prochnik, Simon; Geng, Sa; Rai, Rhitu; Grimwood, Jane; Schmutz, Jeremy; Nishii, Ichiro; Hamaji, Takashi; Nozaki, Hisayoshi; Pellegrini, Matteo; Umen, James G.

    2010-01-01

    Although dimorphic sexes have evolved repeatedly in multicellular eukaryotes, their origins are unknown. The mating locus (MT) of the sexually dimorphic multicellular green alga, Volvox carteri, specifies the production of eggs and sperm and has undergone a remarkable expansion and divergence relative to MT from Chlamydomonas reinhardtii, a closely related unicellular species that has equal-sized gametes. Transcriptome analysis revealed a rewired gametic expression program for Volvox MT genes relative to Chlamydomonas, and identified multiple gender-specific and sex-regulated transcripts. The retinoblastoma tumor suppressor homolog MAT3 is a Volvox MT gene that displays sexually regulated alternative splicing and evidence of gender-specific selection, both indicative of cooption into the sexual cycle. Thus, sex-determining loci impact the evolution of both sex-related and non-sex-related genes. PMID:20395508

  11. A novel stroke locus identified in a northern Sweden pedigree

    DEFF Research Database (Denmark)

    Janunger, T.; Nilsson-Ardnor, S.; Wiklund, P.-G.

    2009-01-01

    to identify novel stroke susceptibility loci. METHODS: Through genealogy, 7 nuclear families with a common ancestor, connected over 8 generations, were identified. A genome-wide scan using 449 microsatellite markers was performed with subsequent haplotype analyses. RESULTS: A maximum allele-sharing lod score......OBJECTIVES: The population of northern Sweden is characterized by reduced genetic diversity and a high incidence of stroke. We sought to reduce genetic variation further, using genealogic analysis in a set of nuclear families affected by stroke, and we subsequently performed a genome-wide scan...... of 4.81 on chromosome 9q31-q33 was detected. Haplotype analysis identified a common 2.2-megabase interval in the chromosomal region in 4 of the nuclear families, where an overrepresentation of intracerebral hemorrhage was observed. CONCLUSIONS: We have identified a novel susceptibility locus for stroke...

  12. [Cajal bodies and histone locus bodies: molecular structure and function].

    Science.gov (United States)

    Khodiuchenko, T A; Krasikova, A V

    2014-01-01

    The review provides modern classification of evolutionarily conserved coilin-containing nuclear bodies of somatic and germ cells that is based on the characteristic features of their molecular composition and the nature of their functions. The main differences between Cajal bodies and histone locus bodies, which are involved in the biogenesis of small nuclear spliceosomal and nucleolar RNAs and in the 3'-end processing of histone precursor messenger RNA, respectively, are considered. It is shown that a significant contribution to the investigation of the diversity of coilin-containing bodies was made by the studies on the architecture of the RNA processing machinery in oocyte nuclei in a number of model organisms. The characteristics features of the molecular composition of coilin-containing bodies in the nuclei of growing oocytes (the so-called germinal vesicles) of vertebrates, including amphibians and birds, are described.

  13. Cajal bodies and histone locus bodies in Drosophila and Xenopus.

    Science.gov (United States)

    Nizami, Z F; Deryusheva, S; Gall, J G

    2010-01-01

    The organization of the cell nucleus into specialized compartments is important for nuclear function. We address the significance of compartmentalization by studying the Cajal body, an evolutionarily conserved nuclear organelle proposed to be involved in such diverse functions as assembly of the spliceosome, assembly of the transcription machinery, and modification of spliceosomal small nuclear RNAs. The Cajal body is typically identified by the presence of coilin, a protein of poorly defined function. Here, we demonstrate that coilin is not a unique Cajal body marker but also occurs in a related yet distinct nuclear organelle known as the histone locus body in both Drosophila and Xenopus. We stress the importance of multiple markers not only for identification of nuclear bodies but also for assessing their functional significance.

  14. CSGRqtl: A Comparative Quantitative Trait Locus Database for Saccharinae Grasses.

    Science.gov (United States)

    Zhang, Dong; Paterson, Andrew H

    2017-01-01

    Conventional biparental quantitative trait locus (QTL) mapping has led to some successes in the identification of causal genes in many organisms. QTL likelihood intervals not only provide "prior information" for finer-resolution approaches such as GWAS but also provide better statistical power than GWAS to detect variants with low/rare frequency in a natural population. Here, we describe a new element of an ongoing effort to provide online resources to facilitate study and improvement of the important Saccharinae clade. The primary goal of this new resource is the anchoring of published QTLs for this clade to the Sorghum genome. Genetic map alignments translate a wealth of genomic information from sorghum to Saccharum spp., Miscanthus spp., and other taxa. In addition, genome alignments facilitate comparison of the Saccharinae QTL sets to those of other taxa that enjoy comparable resources, exemplified herein by rice.

  15. Locus of Control as It Relates to the Teaching Style of Elementary Teachers

    Science.gov (United States)

    Ture, Abidemi

    2013-01-01

    This research explored the relationship between elementary teachers' locus of control and teaching style. This research observed elementary teachers in their classrooms coupled with data gathered from information sheets, surveys, and interviews to determine if a relationship exists between the locus of control of the elementary teachers and…

  16. Developmental regulation of a complete 70kb human β-globin locus in transgenic mice.

    NARCIS (Netherlands)

    J. Strouboulis (John); N.O. Dillon (Niall); F.G. Grosveld (Frank)

    1992-01-01

    textabstractWe have used a linker-based ligation strategy to combine two 35-kb cosmid inserts from the human beta-globin locus into one linear fragment containing the entire locus. This 70-kb fragment was introduced into transgenic mice by microinjection of fertilized eggs. Southern blot analysis sh

  17. An Examination of Locus of Control, Epistemological Beliefs and Metacognitive Awareness in Preservice Early Childhood Teachers

    Science.gov (United States)

    Bedel, Emine Ferda

    2012-01-01

    This study aims to explore the locus of control, epistemological beliefs and metacognitive awareness levels of preservice early childhood education teachers and to determine the interrelations among these variables. 206 teacher candidates have been asked to fill out Rotter's Internal-External Locus of Control Scale, Central Epistemological Beliefs…

  18. Partial duplication of the PRLR and SPEF2 genes at the late feathering locus in chicken

    NARCIS (Netherlands)

    Elferink, M.G.; Vallee, N.; Jungerius, B.J.; Crooijmans, R.P.M.A.; Groenen, M.A.M.

    2008-01-01

    Background One of the loci responsible for feather development in chickens is K. The K allele is partially dominant to the k+ allele and causes a retard in the emergence of flight feathers at hatch. The K locus is sex linked and located on the Z chromosome. Therefore, the locus can be utilized to pr

  19. The location of the restriction locus for λ·K in Escherichia coli B

    NARCIS (Netherlands)

    Hoekstra, W.P.M.; Haan, P.G. de

    1965-01-01

    Analysis of recombinants from E. coli K 12 Hfr × E. coli B F− crosses showed that one locus on the chromosome of Escherichia coli, controlling restriction and probably also the modification of phage λ, is located between the leading point of the Hfr H chromosome and the locus for threonine synthesis

  20. Locus of Control, Perceptions and Attributions of Student Teachers in Educational Situations.

    Science.gov (United States)

    Kremer, Lya; Kurtz, Chaya

    Student teachers' perceptions of locus of control was investigated. Locus of control is defined as representing the extent of dependence upon inner or outer forces, the extent one is willing to invest in shaping the environment, and the perception of reinforcement as dependent upon those efforts, or upon random events. The specific questions were:…

  1. Authoritarian Child Rearing, Parental Locus of Control, and the Child's Behavior Style.

    Science.gov (United States)

    Janssens, Jan M. A. M.

    1994-01-01

    Examined relationships among childrearing, parental locus of control about childrearing, and child's behavior style. Found that parents who perceived their child's behavior as either externalizing or internalizing had a weak internal locus of control and were more authoritarian. Perceived externalizing child behavior was positively related to…

  2. Identification of heat resistant Escherichia coli by qPCR for the locus of heat resistance.

    Science.gov (United States)

    Ma, Angela; Chui, Linda

    2017-02-01

    Three qPCR assays targeting the locus of heat resistance to identify heat resistant clinical Escherichia coli isolates are described. Of 613 isolates, 3 (0.5%) possessed the locus. The assays are a rapid, highly sensitive and specific alternative to screening by heat shock and can be used in food safety surveillance.

  3. Fine-Scale Mapping of the FGFR2 Breast Cancer Risk Locus

    DEFF Research Database (Denmark)

    Meyer, Kerstin B; O'Reilly, Martin; Michailidou, Kyriaki

    2013-01-01

    The 10q26 locus in the second intron of FGFR2 is the locus most strongly associated with estrogen-receptor-positive breast cancer in genome-wide association studies. We conducted fine-scale mapping in case-control studies genotyped with a custom chip (iCOGS), comprising 41 studies (n = 89,050) of...

  4. The cps locus of Streptococcus suis serotype 16: Development of a serotype-specific PCR assay

    NARCIS (Netherlands)

    Wang, K.; Weixing, Fan; Wisselink, H.J.; Chengping, Lu

    2011-01-01

    Streptococcus suis serotype 16 can infect pigs and humans. We describe the identification and the characterization of the capsular polysaccharides synthesis locus of S. suis serotype 16. Using PCR primers flanking the capsular polysaccharides synthesis locus, a 30,101-bp fragment was amplified. Twen

  5. Self Esteem, Locus of Control and Multidimensional Perfectionism as the Predictors of Subjective Well Being

    Science.gov (United States)

    Karatas, Zeynep; Tagay, Ozlem

    2012-01-01

    The purpose of this study is to determine whether there is a relationship between self-esteem, locus of control and multidimensional perfectionism, and the extent to which the variables of self-esteem, locus of control and multidimensional perfectionism contribute to the prediction of subjective well-being. The study was carried out with 318 final…

  6. Locus ceruleus neurons in people with autism contain no histochemically-detectable mercury.

    Science.gov (United States)

    Pamphlett, Roger; Kum Jew, Stephen

    2016-02-01

    Exposure to environmental mercury has been proposed to play a part in autism. Mercury is selectively taken up by the human locus ceruleus, a region of the brain that has been implicated in autism. We therefore looked for the presence of mercury in the locus ceruleus of people who had autism, using the histochemical technique of autometallography which can detect nanogram amounts of mercury in tissues. In addition, we sought evidence of damage to locus ceruleus neurons in autism by immunostaining for hyperphosphorylated tau. No mercury was found in any neurons of the locus ceruleus of 6 individuals with autism (5 male, 1 female, age range 16-48 years). Mercury was present in locus ceruleus neurons in 7 of 11 (64%) age-matched control individuals who did not have autism, which is significantly more than in individuals with autism. No increase in numbers of locus ceruleus neurons containing hyperphosphorylated tau was detected in people with autism. In conclusion, most people with autism have not been exposed early in life to quantities of mercury large enough to be found later in adult locus ceruleus neurons. Human locus ceruleus neurons are sensitive indicators of mercury exposure, and mercury appears to remain in these neurons indefinitely, so these findings do not support the hypothesis that mercury neurotoxicity plays a role in autism.

  7. Social Self-Efficacy, Academic Locus of Control, and Internet Addiction

    Science.gov (United States)

    Iskender, Murat; Akin, Ahmet

    2010-01-01

    The purpose of this research is to examine the relationship of internet addiction, social self-efficacy, and academic locus of control. Participants were 311 university students who completed a questionnaire package that included the Online Cognition Scale, the Academic Locus of Control Scale, and the Perceived Social Self-efficacy Scale. The…

  8. Identification of a siderophore utilization locus in nontypeable Haemophilus influenzae

    Directory of Open Access Journals (Sweden)

    Seale Thomas W

    2010-04-01

    Full Text Available Abstract Background Haemophilus influenzae has an absolute aerobic growth requirement for either heme, or iron in the presence of protoporphyrin IX. Both iron and heme in the mammalian host are strictly limited in their availability to invading microorganisms. Many bacterial species overcome iron limitation in their environment by the synthesis and secretion of small iron binding molecules termed siderophores, which bind iron and deliver it into the bacterial cell via specific siderophore receptor proteins on the bacterial cell surface. There are currently no reports of siderophore production or utilization by H. influenzae. Results Comparative genomics revealed a putative four gene operon in the recently sequenced nontypeable H. influenzae strain R2846 that encodes predicted proteins exhibiting significant identity at the amino acid level to proteins involved in the utilization of the siderophore ferrichrome in other bacterial species. No siderophore biosynthesis genes were identified in the R2846 genome. Both comparative genomics and a PCR based analysis identified several additional H. influenzae strains possessing this operon. In growth curve assays strains containing the genes were able to utilize ferrichrome as an iron source. H. influenzae strains lacking the operon were unable to obtain iron from ferrichrome. An insertional mutation in one gene of the operon abrogated the ability of strains to utilize ferrichrome. In addition transcription of genes in the identified operon were repressible by high iron/heme levels in the growth media. Conclusions We have identified an iron/heme-repressible siderophore utilization locus present in several nontypeable H. influenzae strains. The same strains do not possess genes encoding proteins associated with siderophore synthesis. The siderophore utilization locus may enable the utilization of siderophores produced by other microorganisms in the polymicrobial environmental niche of the human nasopharynx

  9. PAHdb 2003: what a locus-specific knowledgebase can do.

    Science.gov (United States)

    Scriver, Charles R; Hurtubise, Mélanie; Konecki, David; Phommarinh, Manyphong; Prevost, Lynne; Erlandsen, Heidi; Stevens, Ray; Waters, Paula J; Ryan, Shannon; McDonald, David; Sarkissian, Christineh

    2003-04-01

    PAHdb, a legacy of and resource in genetics, is a relational locus-specific database (http://www.pahdb.mcgill.ca). It records and annotates both pathogenic alleles (n = 439, putative disease-causing) and benign alleles (n = 41, putative untranslated polymorphisms) at the human phenylalanine hydroxylase locus (symbol PAH). Human alleles named by nucleotide number (systematic names) and their trivial names receive unique identifier numbers. The annotated gDNA sequence for PAH is typical for mammalian genes. An annotated gDNA sequence is numbered so that cDNA and gDNA sites are interconvertable. A site map for PAHdb leads to a large array of secondary data (attributes): source of the allele (submitter, publication, or population); polymorphic haplotype background; and effect of the allele as predicted by molecular modeling on the phenylalanine hydroxylase enzyme (EC 1.14.16.1) or by in vitro expression analysis. The majority (63%) of the putative pathogenic PAH alleles are point mutations causing missense in translation of which few have a primary effect on PAH enzyme kinetics. Most apparently have a secondary effect on its function through misfolding, aggregation, and intracellular degradation of the protein. Some point mutations create new splice sites. A subset of primary PAH mutations that are tetrahydrobiopterin-responsive is highlighted on a Curators' Page. A clinical module describes the corresponding human clinical disorders (hyperphenylalaninemia [HPA] and phenylketonuria [PKU]), their inheritance, and their treatment. PAHdb contains data on the mouse gene (Pah) and on four orthologous mutant mouse models and their use (for example, in research on oral treatment of PKU with the enzyme phenylalanine ammonia lyase [EC 4.3.1.5]).

  10. Regulatory Expectations for Safety Culture

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Su Jin; Oh, Jang Jin; Choi, Young Sung [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

    2014-05-15

    The oversight of licensee's safety culture becomes an important issue that attracts great public and political concerns recently in Korea. Beginning from the intended violation of rules, a series of corruptions, documents forgery and disclosure of wrong-doings made the public think that the whole mindset of nuclear workers has been inadequate. Thus, they are demanding that safety culture shall be improved and that regulatory body shall play more roles and responsibilities for the improvements and oversight for them. This paper introduces, as an effort of regulatory side, recent changes in the role of regulators in safety culture, regulatory expectations on the desired status of licensee's safety culture, the pilot inspection program for safety culture and research activity for the development of oversight system. After the Fukushima accident in Japan 2011, many critics has searched for cultural factors that caused the unacceptable negligence pervaded in Japan nuclear society and the renewed emphasis has been placed on rebuilding safety culture by operators, regulators, and relevant institutions globally. Significant progress has been made in how to approach safety culture and led to a new perspective different from the existing normative assessment method both in operators and regulatory side. Regulatory expectations and oversight of them are based on such a new holistic concept for human, organizational and cultural elements to maintain and strengthen the integrity of defense in depth and consequently nuclear safety.

  11. Evidence for the existence of a fourth dominantly inherited spinocerebellar ataxia locus

    Energy Technology Data Exchange (ETDEWEB)

    Lopes-Cendes, I. (Montreal General Hospital Research Institute, Quebec (Canada) Montreal Neurological Institute and Hospital, Quebec (Canada) McGill Univ., Quebec (Canada)); Andermann, E. (Montreal Neurological Institute and Hospital, Quebec (Canada) McGill Univ., Quebec (Canada)); Rouleau, G.A. (Montreal General Hospital Research Institute, Quebec (Canada) Montreal Neurological Institute and Hospital, Quebec (Canada))

    1994-05-01

    The autosomal dominantly inherited spinocerebellar ataxias (SCAs) are a heterogeneous group of disorders. To date, three loci have been identified: The SCA1 locus (on chr 6p), the SCA2 locus (on chr 12q), and more recently a Machado-Joseph disease (MJD) locus (on chr 14q). The authors have studied one large French-Canadian kindred with four generations of living affected individuals segregating an autosomal dominant form of SCA. Linkage analysis using anonymous DNA markers that flank the three previously described loci significantly exclude the French-Canadian kindred from the SCA1, SCA2, and MJD loci. Therefore, a fourth, still unmapped SCA locus remains to be identified. In addition, the unique clinical phenotype present in all affected individuals of the French-Canadian kindred might be characteristic of this still unmapped SCA locus. 34 refs., 2 figs., 2 tabs.

  12. Aggression and Multidimensional Perfectionism as the Predictors of Locus of Control

    Directory of Open Access Journals (Sweden)

    Zeynep KARATAŞ

    2012-12-01

    Full Text Available The purpose of this study was to determine whether there is a relationship between locus of control, aggression and multidimensional perfectionism, and the extent to which the variables of aggression and multidimensional perfectionism contribute to the prediction of locus of control. The study was carried out with students of 268 teachers colleges in Mehmet Akif Ersoy University. Aggression Questionnaire adopted by Can (2002, Locus of Control Scale (Dağ, 2002 and Multi-Dimensional Perfectionism Scale adopted by Oral (1999 were used in the study. Correlation Coefficient of Pearson Moments Multiplying and Gradual Regression Analysis were used in the analysis of the data. As a consequence, it was determined that there is a positive relationship between locus of control, aggression and multi-dimensional perfectionism. Also, it was observed that the variables of aggression and multidimensional perfectionism significantly predict locus of control.

  13. Is the novel SCKL3 at 14q23 the predominant Seckel locus?

    Science.gov (United States)

    Kilinç, Mehmet Okyay; Ninis, Vasiliki Ninidu; Ugur, Sibel Aylin; Tüysüz, Beyhan; Seven, Mehmet; Balci, Sevim; Goodship, Judith; Tolun, Aslihan

    2003-11-01

    Seckel syndrome (SCKL) is a rare disease with wide phenotypic heterogeneity. A locus (SCKL1) has been identified at 3q and another (SCKL2) at 18p, both in single kindreds afflicted with the syndrome. We report here a novel locus (SCKL3) at 14q by linkage analysis in 13 Turkish families. In total, 18 affected and 10 unaffected sibs were included in the study. Of the 10 informative families, nine with parental consanguinity and one reportedly nonconsanguineous but with two affected sibs, five were indicative of linkage to the novel locus. One of those families also linked to the SCKL1 locus. A consanguineous family with one affected sib was indicative of linkage to SCKL2. The novel gene locus SCKL3 is 1.18 cM and harbors ménage a trois 1, a gene with a role in DNA repair.

  14. A 27-locus STR assay to meet all United States and European law enforcement agency standards.

    Science.gov (United States)

    Schumm, James W; Gutierrez-Mateo, Cristina; Tan, Eugene; Selden, Richard

    2013-11-01

    Different national and international agencies have selected specific STR sets for forensic database use. To enhance database comparison across national and international borders, a 27-locus multiplex system was developed comprising all 15 STR loci of the European standard set, the current 13 STR loci of the CODIS core, the proposed 22 STR loci of the expanded CODIS core, 4 additional commonly used STR loci, and the amelogenin locus. Development required iterative primer design to resolve primer-related artifacts, amplicon sizing, and locus-to-locus balance issues. The 19.5-min assay incorporated newly developed six-dye chemistry analyzed using a novel microfluidic electrophoresis instrument capable of simultaneous detection and discrimination of 8 or more fluorescent dyes. The 27-locus multiplex offers the potential for a new international STR standard permitting laboratories in any jurisdiction to use a single reaction to determine profiles for loci they typically generate plus an expanded common STR profiling set of global interest.

  15. African Americans with cancer: the relationships among self-esteem, locus of control, and health perception.

    Science.gov (United States)

    Swinney, Jean E

    2002-10-01

    The purpose of this study was to describe and examine the relationships among self-esteem, locus of control, and perceived health status in African Americans with cancer and to identify predictors of perceived health status. A convenience sample of 95 oncology outpatients at two large medical facilities completed the Tennessee Self-Concept Scale, the Multidimensional Health Locus of Control Scale, and the Cantril Ladder, a measurement of perceived health. In an audiotaped interview two open-ended questions were used to clarify participants' Cantril Ladder scores. A significant positive relationship was discovered between self-esteem and powerful others health locus of control (p Self-esteem and an internal health locus of control were found to account for 23% of the perceived variance in health status. In addition, interview data indicated that participants with normal to high levels of self-esteem and an internal health locus of control perceived their state of health and well-being positively.

  16. Structure and expression of the S locus-related genes of maize.

    Science.gov (United States)

    Zhang, R; Walker, J C

    1993-03-01

    The extracellular of the putative receptor-like protein kinase, ZmPK1, is related to the self-incompatibility locus (S-locus) genes of Brassica. We have isolated and characterized a genomic DNA clone of ZmPK1 and three additional genes from maize that are highly related to ZmPK1. These three S-locus related genes do not appear to have the protein kinase catalytic domain that is found in ZmPK1. One or more of these genes are expressed specifically in the silks. This initial description of S-locus related genes in monocotyledonous plants suggests that the S-locus domain may be involved in several different cellular functions in a wide variety of plants.

  17. Os Lusíadas de Camões como modelo literario de las Soledades de Góngora

    Directory of Open Access Journals (Sweden)

    Cidália Alves dos Santos

    2015-02-01

    Full Text Available En este artículo se analizan las relaciones intertextuales entre Os Lusíadas de Camões y las Soledades de Góngora. El poeta cordobés, que participó con su primer poema impreso en los preliminares de una de las primeras traducciones de la obra al castellano, tomó al portugués como modelo en la construcción de muchos de sus poemas. En el texto de las Soledades, verificamos que, más allá de la influencia que el poeta portugués pudo ejercer sobre el cordobés, existe  un caso de imitación de procedimientos textuales, temáticos y lingüísticos.

  18. Digital Database of Selected Aggregate and Related Resources in Ada, Boise, Canyon, Elmore, Gem, and Owyhee Counties, Southwestern Idaho

    Science.gov (United States)

    Moyle, Phillip R.; Wallis, John C.; Bliss, James D.; Bolm, Karen D.

    2004-01-01

    The U.S. Geological Survey (USGS) compiled a database of aggregate sites and geotechnical sample data for six counties - Ada, Boise, Canyon, Elmore, Gem, and Owyhee - in southwest Idaho as part of a series of studies in support of the Bureau of Land Management (BLM) planning process. Emphasis is placed on sand and gravel sites in deposits of the Boise River, Snake River, and other fluvial systems and in Neogene lacustrine deposits. Data were collected primarily from unpublished Idaho Transportation Department (ITD) records and BLM site descriptions, published Army Corps of Engineers (ACE) records, and USGS sampling data. The results of this study provides important information needed by land-use planners and resource managers, particularly in the BLM, to anticipate and plan for demand and development of sand and gravel and other mineral material resources on public lands in response to the urban growth in southwestern Idaho.

  19. Real-Time Multi-View Face Detection and Pose Estimation Based on Cost-Sensitive AdaBoost

    Institute of Scientific and Technical Information of China (English)

    MA Yong; DING Xiaoqing

    2005-01-01

    Locating multi-view faces in images with a complex background remains a challenging problem. In this paper, an integrated method for real-time multi-view face detection and pose estimation is presented. A simple-to-complex and coarse-to-fine view-based detector architecture has been designed to detect multi-view faces and estimate their poses efficiently. Both the pose estimators and the view-based face/nonface detectors are trained by a cost-sensitive AdaBoost algorithm to improve the generalization ability. Experimental results show that the proposed multi-view face detector, which can be constructed easily, gives more robust face detection and pose estimation and has a faster real-time detection speed compared with other conventional methods.

  20. Organization of the cpe locus in CPE-positive clostridium perfringens type C and D isolates.

    Directory of Open Access Journals (Sweden)

    Jihong Li

    Full Text Available Clostridium perfringens enterotoxin (encoded by the cpe gene contributes to several important human, and possibly veterinary, enteric diseases. The current study investigated whether cpe locus organization in type C or D isolates resembles one of the three (one chromosomal and two plasmid-borne cpe loci commonly found amongst type A isolates. Multiplex PCR assays capable of detecting sequences in those type A cpe loci failed to amplify products from cpe-positive type C and D isolates, indicating these isolates possess different cpe locus arrangements. Therefore, restriction fragments containing the cpe gene were cloned and sequenced from two type C isolates and one type D isolate. The obtained cpe locus sequences were then used to construct an overlapping PCR assay to assess cpe locus diversity amongst other cpe-positive type C and D isolates. All seven surveyed cpe-positive type C isolates had a plasmid-borne cpe locus partially resembling the cpe locus of type A isolates carrying a chromosomal cpe gene. In contrast, all eight type D isolates shared the same plasmid-borne cpe locus, which differed substantially from the cpe locus present in other C. perfringens by containing two copies of an ORF with 67% identity to a transposase gene (COG4644 found in Tn1546, but not previously associated with the cpe gene. These results identify greater diversity amongst cpe locus organization than previously appreciated, providing new insights into cpe locus evolution. Finally, evidence for cpe gene mobilization was found for both type C and D isolates, which could explain their cpe plasmid diversity.

  1. A combined functional and structural genomics approach identified an EST-SSR marker with complete linkage to the Ligon lintless-2 genetic locus in cotton (Gossypium hirsutum L.

    Directory of Open Access Journals (Sweden)

    Tang Yuhong

    2011-09-01

    Full Text Available Abstract Background Cotton fiber length is an important quality attribute to the textile industry and longer fibers can be more efficiently spun into yarns to produce superior fabrics. There is typically a negative correlation between yield and fiber quality traits such as length. An understanding of the regulatory mechanisms controlling fiber length can potentially provide a valuable tool for cotton breeders to improve fiber length while maintaining high yields. The cotton (Gossypium hirsutum L. fiber mutation Ligon lintless-2 is controlled by a single dominant gene (Li2 that results in significantly shorter fibers than a wild-type. In a near-isogenic state with a wild-type cotton line, Li2 is a model system with which to study fiber elongation. Results Two near-isogenic lines of Ligon lintless-2 (Li2 cotton, one mutant and one wild-type, were developed through five generations of backcrosses (BC5. An F2 population was developed from a cross between the two Li2 near-isogenic lines and used to develop a linkage map of the Li2 locus on chromosome 18. Five simple sequence repeat (SSR markers were closely mapped around the Li2 locus region with two of the markers flanking the Li2 locus at 0.87 and 0.52 centimorgan. No apparent differences in fiber initiation and early fiber elongation were observed between the mutant ovules and the wild-type ones. Gene expression profiling using microarrays suggested roles of reactive oxygen species (ROS homeostasis and cytokinin regulation in the Li2 mutant phenotype. Microarray gene expression data led to successful identification of an EST-SSR marker (NAU3991 that displayed complete linkage to the Li2 locus. Conclusions In the field of cotton genomics, we report the first successful conversion of gene expression data into an SSR marker that is associated with a genomic region harboring a gene responsible for a fiber trait. The EST-derived SSR marker NAU3991 displayed complete linkage to the Li2 locus on

  2. Robust Grape Cluster Detection in a Vineyard by Combining the AdaBoost Framework and Multiple Color Components

    Directory of Open Access Journals (Sweden)

    Lufeng Luo

    2016-12-01

    Full Text Available The automatic fruit detection and precision picking in unstructured environments was always a difficult and frontline problem in the harvesting robots field. To realize the accurate identification of grape clusters in a vineyard, an approach for the automatic detection of ripe grape by combining the AdaBoost framework and multiple color components was developed by using a simple vision sensor. This approach mainly included three steps: (1 the dataset of classifier training samples was obtained by capturing the images from grape planting scenes using a color digital camera, extracting the effective color components for grape clusters, and then constructing the corresponding linear classification models using the threshold method; (2 based on these linear models and the dataset, a strong classifier was constructed by using the AdaBoost framework; and (3 all the pixels of the captured images were classified by the strong classifier, the noise was eliminated by the region threshold method and morphological filtering, and the grape clusters were finally marked using the enclosing rectangle method. Nine hundred testing samples were used to verify the constructed strong classifier, and the classification accuracy reached up to 96.56%, higher than other linear classification models. Moreover, 200 images captured under three different illuminations in the vineyard were selected as the testing images on which the proposed approach was applied, and the average detection rate was as high as 93.74%. The experimental results show that the approach can partly restrain the influence of the complex background such as the weather condition, leaves and changing illumination.

  3. Reorganisation of Hoxd regulatory landscapes during the evolution of a snake-like body plan

    Science.gov (United States)

    Guerreiro, Isabel; Gitto, Sandra; Novoa, Ana; Codourey, Julien; Nguyen Huynh, Thi Hanh; Gonzalez, Federico; Milinkovitch, Michel C; Mallo, Moises; Duboule, Denis

    2016-01-01

    Within land vertebrate species, snakes display extreme variations in their body plan, characterized by the absence of limbs and an elongated morphology. Such a particular interpretation of the basic vertebrate body architecture has often been associated with changes in the function or regulation of Hox genes. Here, we use an interspecies comparative approach to investigate different regulatory aspects at the snake HoxD locus. We report that, unlike in other vertebrates, snake mesoderm-specific enhancers are mostly located within the HoxD cluster itself rather than outside. In addition, despite both the absence of limbs and an altered Hoxd gene regulation in external genitalia, the limb-associated bimodal HoxD chromatin structure is maintained at the snake locus. Finally, we show that snake and mouse orthologous enhancer sequences can display distinct expression specificities. These results show that vertebrate morphological evolution likely involved extensive reorganisation at Hox loci, yet within a generally conserved regulatory framework. DOI: http://dx.doi.org/10.7554/eLife.16087.001 PMID:27476854

  4. Sickle cell anemia induces changes in peripheral lymphocytes E-NTPDase/E-ADA activities and cytokines secretion in patients under treatment.

    Science.gov (United States)

    Castilhos, Lívia G; Doleski, Pedro H; Bertoldo, Tatiana M D; Passos, Daniela F; Bertoncheli, Claudia de M; Rezer, João F P; Schlemmer, Josiane B; Leal, Daniela B R

    2015-07-01

    Sickle cell anemia (SCA) is characterized by hemoglobin polymerization that results in sickle-shaped red blood cells. The vascular obstruction by sickle erythrocytes is often inflammatory, and purinergic system ecto-enzymes play an important role in modulating the inflammatory and immune response. This study aimed to evaluate the E-NTPDase and E-ADA activities in lymphocytes of SCA treated patients, as well as verify the cytokine profile in this population. Fifteen SCA treated patients and 30 health subjects (control group) were selected. The peripheral lymphocytes were isolated and E-NTPDase and E-ADA activities were determined. Serum was separated from clot formation for the cytokines quantification. E-NTPDase (ATP and ADP as substrate) and E-ADA (adenosine as substrate) activities were increased in lymphocytes from SCA patients (P<0.001). The TNF-α and IL-6 serum cytokines showed decreased on SCA patients comparing to control (P<0.001). The regulation of extracellular nucleotides released in response to hypoxia and inflammation through E-NTPDase and E-ADA enzymes represent an important control of purine-mediated in the SCA disease, avoiding elevated adenosine levels in the extracellular medium and consequent organ injuries in these patients. The pro-inflammatory cytokines decreased levels by use of hydroxyurea occur in attempt to reduce the pro-inflammatory response and prevent vaso-oclusive crisis.

  5. IL-3 or IL-7 increases ex vivo gene transfer efficiency in ADA-SCID BM CD34+ cells while maintaining in vivo lymphoid potential.

    Science.gov (United States)

    Ficara, Francesca; Superchi, Daniela B; Hernández, Raisa Jofra; Mocchetti, Cristina; Carballido-Perrig, Nicole; Andolfi, Grazia; Deola, Sara; Colombo, Augusto; Bordignon, Claudio; Carballido, José M; Roncarolo, Maria Grazia; Aiuti, Alessandro

    2004-12-01

    To improve maintenance and gene transfer of human lymphoid progenitors for clinical use in gene therapy of adenosine deaminase (ADA)-deficient SCID we investigated several gene transfer protocols using various stem cell-enriched sources. The lymphoid differentiation potential was measured by an in vitro clonal assay for B/NK cells and in the in vivo SCID-hu mouse model. Ex vivo culture with the cytokines TPO, FLT3-ligand, and SCF (T/F/S) plus IL-3 or IL-7 substantially increased the yield of transduced bone marrow (BM) CD34(+) cells purified from ADA-SCID patients or healthy donors, compared to T/F/S alone. Moreover, the use of IL-3 or IL-7 significantly improved the maintenance of in vitro B cell progenitors from ADA-SCID BM cells and allowed the efficient transduction of B and NK cell progenitors. Under these optimized conditions transduced CD34(+) cells were efficiently engrafted into SCID-hu mice and gave rise to B and T cell progeny, demonstrating the maintenance of in vivo lymphoid reconstitution capacity. The protocol based on the T/F/S + IL-3 combination was included in a gene therapy clinical trial for ADA-SCID, resulting in long-term engraftment of stem/progenitor cells. Remarkably, gene-corrected BM CD34(+) cells obtained from one patient 4 and 11 months after gene therapy were capable of repopulating the lymphoid compartment of SCID-hu hosts.

  6. Compilation of ground-water quality data for selected wells in Elmore, Owyhee, Ada, and Canyon counties, Idaho, 1945 through 1982

    Science.gov (United States)

    Parliman, D.J.

    1982-01-01

    Well-inventory and groundwater-quality data for 665 sites with a total of 1,318 chemical analyses were compiled from Elmore, Owyhee, Ada, and Canyon Counties. Data are sorted by water temperature (less than 20 degrees Celsius is considered nonthermal; 20 degrees Celcius or greater is considered thermal) to facilitate their use.

  7. Genetic regulation of the intercellular adhesion locus in staphylococci

    Directory of Open Access Journals (Sweden)

    David R Cue

    2012-03-01

    Full Text Available The formation of biofilms by Staphylococcus aureus and Staphylococcus epidermidis is an important aspect of many staphylococcal infections, most notably endocarditis, osteomyelitis and infections associated with indwelling medical devices. The major constituents of S. aureus biofilms are polysaccharides, such as poly N-acetyl glucosamine (PIA/PNAG, cell surface and secreted bacterial proteins, and extracellular DNA. The exact composition of biofilms often varies considerably between different strains of staphylococci and between different sites of infection by the same strain. PIA/PNAG is synthesized by the products of 4 genes, icaADBC, that are encoded in a single operon. A fifth gene, icaR, is a negative regulator of icaADBC. Expression of icaADBC is tightly regulated, but can often be induced in vitro by growing staphylococci in the presence of high salt, high glucose or ethanol. Regulation of icaADBC is complex and numerous regulatory factors have been implicated in control of icaADBC. Many of these are well known global transcriptional regulatory factors like SarA and sigmaB, whereas other regulators, such as IcaR, seem to affect expression of relatively few genes. Here, we will attempt to summarize how various regulatory factors affect the production of PIA/PNAG in staphylococci.

  8. The N-terminus region of the putative C2H2 transcription factor Ada1 harbors a species-specific activation motif that regulates asexual reproduction in Fusarium verticillioides.

    Science.gov (United States)

    Malapi-Wight, Martha; Kim, Jung-Eun; Shim, Won-Bo

    2014-01-01

    Fusarium verticillioides is an important plant pathogenic fungus causing maize ear and stalk rots. In addition, the fungus is directly associated with fumonisin contamination of food and feeds. Here, we report the functional characterization of Ada1, a putative Cys2-His2 zinc finger transcription factor with a high level of similarity to Aspergillus nidulans FlbC, which is required for the activation of the key regulator of conidiation brlA. ADA1 is predicted to encode a protein with two DNA binding motifs at the C terminus and a putative activator domain at the N terminus region. Deletion of the flbC gene in A. nidulans results in "fluffy" cotton-like colonies, with a defect in transition from vegetative growth to asexual development. In this study we show that Ada1 plays a key role in asexual development in F. verticillioides. Conidia production was significantly reduced in the knockout mutant (Δada1), in which aberrant conidia and conidiophores were also observed. We identified genes that are predicted to be downstream of ADA1, based on A. nidulans conidiation signaling pathway. Among them, the deletion of stuA homologue, FvSTUA, resulted in near absence of conidia production. To further investigate the functional conservation of this transcription factor, we complemented the Δada1 strain with A. nidulans flbC, F. verticillioides ADA1, and chimeric constructs. A. nidulans flbC failed to restore conidia production similar to the wild-type level. However, the Ada1N-terminal domain, which contains a putative activator, fused to A. nidulans FlbC C-terminal motif successfully complemented the Δada1 mutant. Taken together, Ada1 is an important transcriptional regulator of asexual development in F. verticillioides and that the N-terminus domain is critical for proper function of this transcription factor.

  9. Subordinate regulatory mode and leader power: Interpersonal regulatory complementarity predicts task performance

    NARCIS (Netherlands)

    Hamstra, M.R.W.; Orehek, E.; Holleman, M.

    2014-01-01

    This research examines the implications of locomotion regulatory mode (orientation toward making progress on goals) and assessment regulatory mode (orientation toward critically evaluating alternatives) for employees' performance. Regulatory mode theory suggests that, although these are both integra

  10. 75 FR 70757 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a...

    Science.gov (United States)

    2010-11-18

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a... 12, 2010. I. Introduction On August 6, 2010, the Financial Industry Regulatory Authority, Inc... Kimmel, Executive Director, Financial Information Forum, to Elizabeth M. Murphy, Secretary,...

  11. 77 FR 47470 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of...

    Science.gov (United States)

    2012-08-08

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Withdrawal... FINRA Rulebook August 2, 2012. On April 22, 2009, the Financial Industry Regulatory Authority,...

  12. 76 FR 72736 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting...

    Science.gov (United States)

    2011-11-25

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting... September 22, 2011, the Financial Industry Regulatory Authority, Inc. (``FINRA'') filed with the Securities... Killian, Vice President, Securities Industry and Financial Markets Association (``SIFMA''), to Elizabeth...

  13. 77 FR 55517 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a...

    Science.gov (United States)

    2012-09-10

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a.... Introduction On May 24, 2012, Financial Industry Regulatory Authority, Inc. (``FINRA'') filed with the... General Counsel, Securities Industry and Financial Markets Association, dated June 26, 2012...

  14. 75 FR 62439 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a...

    Science.gov (United States)

    2010-10-08

    ...-2010-043] Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving..., 2010. I. Introduction On August 6, 2010, the Financial Industry Regulatory Authority, Inc. (``FINRA..., 2010 (``Wiesenberg Letter''); Letter from Manisha Kimmel, Executive Director, Financial...

  15. 77 FR 12340 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting...

    Science.gov (United States)

    2012-02-29

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting... Accounting Support Fee February 23, 2012. I. Introduction On December 20, 2011, the Financial Industry Regulatory Authority, Inc. (``FINRA'') filed with the Securities and Exchange Commission...

  16. 76 FR 20757 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting...

    Science.gov (United States)

    2011-04-13

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting... February 4, 2011, the Financial Industry Regulatory Authority, Inc. (``FINRA'') filed with the...

  17. 75 FR 61793 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving...

    Science.gov (United States)

    2010-10-06

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving... Encrypted September 29, 2010. I. Introduction On June 2, 2010, the Financial Industry Regulatory Authority... Taunt, Chief Executive Officer, Regal Financial Group, to Elizabeth M. Murphy, Secretary,...

  18. Buffering Role of Locus of Control on Stress among the College/University Teachers of Bahawalpur

    Directory of Open Access Journals (Sweden)

    Aqeel Ahmad Khan (Corresponding author

    2012-06-01

    Full Text Available The present research is aimed to ascertain the role of locus of control in mediating or coping on various degree/levels of stress among the college/university teachers of Bahawalpur. For that purpose a sample of N=200 male/female college/university teacherswas selected by convenient sampling. Research tools, Locus of control by Julian Rotter (1966 and Stress questionnaire by International Stress Management Association UK, (2009 were administered for data collection. After the collection of data it was analyzedby SPSS. The results shows that the teachers identified with internal locus of control reveal low level of stress as contrast to the teachers with external locus of control. The study also confirms that high internal locus of control determines high coping andmediating ability of stress among the teachers. The study also pointed out that the teachers with external locus of control were more incline or prone to stress. Furthermore, Pearson and Spearman’s Correlation results at significant level of .000 show that bothvariables are highly correlated. Similarly, overall Mean of locus of control and Coefficient of variation reveals the high consistency role in relation with stress.

  19. The X-linked F cell production locus: Genetic mapping and role in fetal hemoglobin production

    Energy Technology Data Exchange (ETDEWEB)

    Chang, Y.C.; Smith, K.D.; Moore, R.D. [John Hopkins Univ., Baltimore, MD (United States)] [and others

    1994-09-01

    Postnatal fetal hemoglobin (Hb F) production is confined to a subset of erythocytes termed F-cells. There is a 10-20 fold variation in F-cell production in sickle cell disease (SCD) and normal individuals. Most of the variation in F-cell production has been attributed to a diallelic (High, Low) X-linked gene, the F-cell production (FCP) locus that we recently mapped to Xp22.2-22.3 (LOD=4.56, theta=0.04). Using multiple regression analysis in 262 Jamaican SCD patients we determined the relative contribution of the FCP locus and other variables previously associated with variation in Hb F level (gender, age, beta-globin haplotypes, number of alpha-globin genes and the FCP locus phenotypes). When the FCP locus is in the regression model, the FCP locus alone accounts for approximately 40% of the variation in Hb F level while the contribution of age, alpha-globin gene number, and beta-globin haplotypes was insignificant. When individuals with High FCP allele are removed from the analysis, the beta globin haplotype now contribute to >10% of the Hb F variation. We conclude that the X-linked FCP locus is the major determinant of all known variables in Hb F production. Using 4 highly polymorphic dinucleotide repeat markers that we identified from cosmids in Xp22.2-22.3, have localized the FCP locus to a 1 Mb minimal candidate region between DXS143 and DXS410.

  20. Confirmation of the SCA-2 locus as an alternative locus for dominantly inherited spinocerebellar ataxias and refinement of the candidate region

    Energy Technology Data Exchange (ETDEWEB)

    Lopes-Cendes, I.; Rouleau, G.A. (Montreal General Hospital Research Institute, Quebec (Canada)); Andermann, E.; Andermann, F. (Montreal Neurological Institute and Hospital (Canada)); Attig, E. (Hotel Dieu de Montreal (Canada)); Bosch, S.; Wagner, M. (Univ. Hospital, Innsbruck (Austria))

    1994-05-01

    The autosomal dominant spinocerebellar ataxias (SCAs) are a clinically heterogeneous group of neurodegenerative diseases. To date, two SCA loci have been identified - one locus (SCA-1) on the short arm of chromosome 6 and the second locus (SCA-2) on the long arm of chromosome 12. The authors have studied two large kindreds from different ethnic backgrounds, segregating an autosomal dominant form of SCA. A total of 207 living individuals, including 50 affected, were examined, and blood was collected. Linkage analysis was performed using anonymous DNA markers which flank the two previously described loci. The results demonstrate that the two kindreds, one Austrian-Canadian and one French-Canadian, are linked to SCA-2 (chromosome 12q). Multipoint linkage analysis places the SCA-2 locus within a region of approximately 16 cM between the microsatellites D12S58 and D12S84/D12S105 (odds ratio 2,371:1 in favor of this position). The authors show that the SCA-2 locus is not a private gene and represents an alternative SCA locus. 51 refs., 2 figs., 2 tabs.

  1. Personal networks and locus of control in large urban centers of Argentina

    Directory of Open Access Journals (Sweden)

    Pablo De Grande

    2013-12-01

    Full Text Available This study analyzes the relationship between locus of control and interpersonal relations structures in Argentina. After a representative sample (n = 1500 of households in seven major urban centers (>200,000 inhabitants, it examines the relationship between the externality of locus of control and different aspects of personal networks of each respondent. The results show that people having more relations experiment lower levels of externality of locus of control. Likewise, lower levels of externality are informed when personal ties outside the neighborhood are available, as well as ties high educational level. In this regard, significant associations are verified between control and personal relations structures.

  2. AdaBoost fast eye detection algorithm based on extended triangular features%基于扩展三角特征的AdaBoost快速人眼检测算法

    Institute of Scientific and Technical Information of China (English)

    黄坤; 韩飞; 杨月全; 王正群; 张天平

    2012-01-01

    首先给出了通过矩形块与三角像素特征块相结合所构造的八种用于眼睛检测的扩展三角特征原型块.考虑扫描块在人脸背景中遍历时眼睛样本图像块数量远少于非眼睛样本块数的实际,提出了一种结合Haar特征和三角特征的AdaBoost快速眼睛检测算法.通过级联分类器的前几层强分类器完成排除大部分非眼睛样本;然后,通过后续强分类器进行判断大部分的眼睛图像块和少量非眼睛图像块.检测时间消耗有所下降,这样可以保证整体的检测速度.实验结果进一步表明该算法具有更好的检测性能,与仅使用Haar特征相比正检率有一定程度提高.%Eight extended feature prototypes were presented by combining rectangular feature blocks and triangular feature blocks. In consideration of the fact that the amount of eye image blocks is far less than that of non-eye image blocks during a scanning block passing through face images, a fast eye location detection scheme based on AdaBoost algorithm combining rectangular feature blocks and triangular feature blocks was proposed. After most of non-eye blocks are excluded through the foregoing strong classifiers, most eye image blocks and a few of non-eye image blocks are detected through the rear parts of the cascade classifier, which can reduce the detection time and boost the detection speed. The experiments further show that the scheme has better detection performance and positive detection rate compared to the case only employed Haar features.

  3. Locus Adh of Drosophila melanogaster under selection for delayed senescence

    Energy Technology Data Exchange (ETDEWEB)

    Khaustova, N.D. [Odessa State Univ. (Ukraine)

    1995-05-01

    Dynamics of the Adh activity and frequencies of alleles Adh{sup F} and Adh{sup S} were analyzed under selection for delayed senescence. The experiments were performed on Drosophila melanogaster. Lines Adh{sup S}cn and Adh{sup F}vg and experimental populations cn` and vg`, selected for an increased duration of reproductive period (late oviposition) were used. Analysis of fertility, longevity, viability and resistance to starvation showed that selection for late oviposition resulted in delayed senescence of flies of the experimental populations. Genetic structure of population vg` changed considerably with regard to the Adh locus. This was confirmed by parameters of activity, thermostability, and electrophoretic mobility of the enzyme isolated from flies after 30 generations of selection. Analysis of frequencies of the Adh alleles showed that in both selected populations, which initially had different genetic composition, accumulated allele Adh{sup S}, which encodes the isozyme that is less active but more resistant to inactivation. Genetic mechanism of delayed senescence in Drosophila is assumed to involve selection at vitally important enzyme loci, including Adh. 18 refs., 2 tabs., 4 figs.

  4. The achromatic locus: effect of navigation direction in color space.

    Science.gov (United States)

    Chauhan, Tushar; Perales, Esther; Xiao, Kaida; Hird, Emily; Karatzas, Dimosthenis; Wuerger, Sophie

    2014-01-24

    An achromatic stimulus is defined as a patch of light that is devoid of any hue. This is usually achieved by asking observers to adjust the stimulus such that it looks neither red nor green and at the same time neither yellow nor blue. Despite the theoretical and practical importance of the achromatic locus, little is known about the variability in these settings. The main purpose of the current study was to evaluate whether achromatic settings were dependent on the task of the observers, namely the navigation direction in color space. Observers could either adjust the test patch along the two chromatic axes in the CIE u*v* diagram or, alternatively, navigate along the unique-hue lines. Our main result is that the navigation method affects the reliability of these achromatic settings. Observers are able to make more reliable achromatic settings when adjusting the test patch along the directions defined by the four unique hues as opposed to navigating along the main axes in the commonly used CIE u*v* chromaticity plane. This result holds across different ambient viewing conditions (Dark, Daylight, Cool White Fluorescent) and different test luminance levels (5, 20, and 50 cd/m(2)). The reduced variability in the achromatic settings is consistent with the idea that internal color representations are more aligned with the unique-hue lines than the u* and v* axes.

  5. Myc localizes to histone locus bodies during replication in Drosophila.

    Directory of Open Access Journals (Sweden)

    Kaveh Daneshvar

    Full Text Available Myc is an important protein at the center of multiple pathways required for growth and proliferation in animals. The absence of Myc is lethal in flies and mice, and its over-production is a potent inducer of over-proliferation and cancer. Myc protein is localized to the nucleus where it executes its many functions, however the specific sub-nuclear localization of Myc has rarely been reported. The work we describe here began with an observation of unexpected, punctate spots of Myc protein in certain regions of Drosophila embryos. We investigated the identity of these puncta and demonstrate that Myc is co-localized with coilin, a marker for sub-nuclear organelles known as Cajal Bodies (CBs, in embryos, larvae and ovaries. Using antibodies specific for U7 snRNP component Lsm11, we show that the majority of Myc and coilin co-localization occurs in Histone Locus Bodies (HLBs, the sites of histone mRNA transcription and processing. Furthermore, Myc localizes to HLBs only during replication in mitotic and endocycling cells, suggesting that its role there relates to replication-dependent canonical histone gene transcription. These results provide evidence that sub-nuclear localization of Myc is cell-cycle dependent and potentially important for histone mRNA production and processing.

  6. The immunoglobulin light chain locus of the turkey, Meleagris gallopavo.

    Science.gov (United States)

    Bao, Yonghua; Wu, Sun; Zang, Yunlong; Wang, Hui; Song, Xiangfeng; Xu, Chunyang; Xie, Bohong; Guo, Yongchen

    2012-06-15

    To date, most jawed vertebrate species encode more than one immunoglobulin light (IgL) chain isotypes. It has been shown that several bird species (chickens, white Pekin or domestic duck, and zebra finches) exclusively express lambda isotype. We analyze here the genomic organization of another bird species turkey IgL genes based on the recently released genome data. The turkey IgL locus located on chromosome 17 spans approximately 75.2kb and contains a single functional V(λ) gene, twenty V(λ) pseudogenes, and a single functional J(λ)-C(λ) block. These data suggest that the genomic organization of bird IgL chain genes seems to be conserved. Ten cDNA clones from turkey Igλ chain containing almost full-length V(λ), J(λ) and C(λ) segments were acquired. The comparison of V(λ) cDNA sequences to all the germline V(λ) segments suggests that turkey species may be generating IgL chain diversity by gene conversion and somatic hypermutation like the chicken. This study provides insights into the immunoglobulin light chain genes in another bird species.

  7. Polarized gene conversion at the bz locus of maize.

    Science.gov (United States)

    Dooner, Hugo K; He, Limei

    2014-09-23

    Nucleotide diversity is greater in maize than in most organisms studied to date, so allelic pairs in a hybrid tend to be highly polymorphic. Most recombination events between such pairs of maize polymorphic alleles are crossovers. However, intragenic recombination events not associated with flanking marker exchange, corresponding to noncrossover gene conversions, predominate between alleles derived from the same progenitor. In these dimorphic heterozygotes, the two alleles differ only at the two mutant sites between which recombination is being measured. To investigate whether gene conversion at the bz locus is polarized, two large diallel crossing matrices involving mutant sites spread across the bz gene were performed and more than 2,500 intragenic recombinants were scored. In both diallels, around 90% of recombinants could be accounted for by gene conversion. Furthermore, conversion exhibited a striking polarity, with sites located within 150 bp of the start and stop codons converting more frequently than sites located in the middle of the gene. The implications of these findings are discussed with reference to recent data from genome-wide studies in other plants.

  8. Characterization of mutations at the mouse phenylalanine hydroxylase locus

    Energy Technology Data Exchange (ETDEWEB)

    McDonald, J.D.; Charlton, C.K. [Wichita State Univ., KS (United States)

    1997-02-01

    Two genetic mouse models for human phenylketonuria have been characterized by DNA sequence analysis. For each, a distinct mutation was identified within the protein coding sequence of the phenylalanine hydroxylase gene. This establishes that the mutated locus is the same as that causing human phenylketonuria and allows a comparison between these mouse phenylketonuria models and the human disease. A genotype/phenotype relationship that is strikingly similar to the human disease emerges, underscoring the similarity of phenylketonuria in mouse and man. In PAH{sup ENU1}, the phenotype is mild. The Pah{sup enu1} mutation predicts a conservative valine to alanine amino acid substitution and is located in exon 3, a gene region where serious mutations are rare in humans. In PAH{sup ENU2} the phenotype is severe. The Pah{sup enu2} mutation predicts a radical phenylalanine to serine substitution and is located in exon 7, a gene region where serious mutations are common in humans. In PAH{sup ENU2}, the sequence information was used to devise a direct genotyping system based on the creation of a new Alw26I restriction endonuclease site. 26 refs., 2 figs., 1 tab.

  9. Hearing the zero locus of a magnetic field

    Energy Technology Data Exchange (ETDEWEB)

    Montgomery, R. [California Univ., Santa Cruz, CA (United States). Dept. of Mathematics

    1995-04-01

    We investigate the ground state of a two-dimensional quantum particle in a magnetic field where the field vanishes nondegenerately along a closed curve. We show that the ground state concentrates on this curve as e/h tends to infinity, where e is the charge, and that the ground state energy grows like (e/h){sup 2/3}. These statements are true for any energy level, the level being fixed as the charge tends to infinity. If the magnitude of the gradient of the magnetic field is a constant b{sub 0} along its zero locus, then we get the precise asymptotics (e/h){sup 2/3}(b{sub 0}){sup 2/3} E{sub *} + O(1) for every energy level. The constant E{sub *} {approx_equal} .5698 is the infimum of the ground state energies E({beta}) of the anharmonic oscillator family -d{sup 2}/dy{sup 2} + (1/2 y{sup 2} - {beta}){sup 2}. (orig.)

  10. Rapid multi-locus sequence typing using microfluidic biochips.

    Directory of Open Access Journals (Sweden)

    Timothy D Read

    Full Text Available BACKGROUND: Multiple locus sequence typing (MLST has become a central genotyping strategy for analysis of bacterial populations. The scheme involves de novo sequencing of 6-8 housekeeping loci to assign unique sequence types. In this work we adapted MLST to a rapid microfluidics platform in order to enhance speed and reduce laboratory labor time. METHODOLOGY/PRINCIPAL FINDINGS: Using two integrated microfluidic devices, DNA was purified from 100 Bacillus cereus soil isolates, used as a template for multiplex amplification of 7 loci and sequenced on forward and reverse strands. The time on instrument from loading genomic DNA to generation of electropherograms was only 1.5 hours. We obtained full-length sequence of all seven MLST alleles from 84 representing 46 different Sequence Types. At least one allele could be sequenced from a further 15 strains. The nucleotide diversity of B. cereus isolated in this study from one location in Rockville, Maryland (0.04 substitutions per site was found to be as great as the global collection of isolates. CONCLUSIONS/SIGNIFICANCE: Biogeographical investigation of pathogens is only one of a panoply of possible applications of microfluidics based MLST; others include microbiologic forensics, biothreat identification, and rapid characterization of human clinical samples.

  11. Genetic mapping of the dentinogenesis imperfecta type II locus

    Energy Technology Data Exchange (ETDEWEB)

    Crosby, A.H.; Dixon, M.J. [Univ. of Manchester (United Kingdom); Scherpbier-Heddema, T. [Fox Chase Cancer Center, Philadelphia, PA (United States)] [and others

    1995-10-01

    Dentinogenesis imperfecta type II (DGI-II) is an autosomal dominant disorder of dentin formation, which has previously been mapped to chromosome 4q12-21. In the current study, six novel short tandem-repeat polymorphisms (STRPs) have been isolated, five of which show significant evidence of linkage to DGI-II. To determine the order of the STRPs and define the genetic distance between them, nine loci (including polymorphisms for two known genes) were mapped through the CEPH reference pedigrees. The resulting genetic map encompasses 16.3 cM on the sex-averaged map. To combine this map with a physical map of the region, all of the STRPs were mapped through a somatic cell hybrid panel. The most likely location for the DGI-II locus within the fixed marker map is in the D4S2691-D4S2692 interval of 6.6 cM. The presence of a marker that shows no recombination with the DGI-II phenotype between the flanking markers provides an important anchor point for the creation of physical continuity across the DGI-II candidate region. 38 refs., 4 figs., 2 tabs.

  12. Molecular analysis of mutants of the Neurospora adenylosuccinate synthetase locus

    Indian Academy of Sciences (India)

    A. Wiest; A. J. McCarthy; R. Schnittker; K. McCluskey

    2012-08-01

    The ad-8 gene of Neurospora crassa, in addition to being used for the study of purine biology, has been extensively studied as a model for gene structure, mutagenesis and intralocus recombination. Because of this there is an extensive collection of well-characterized N. crassa ad-8 mutants in the Fungal Genetics Stock Center collection. Among these are spontaneous mutants and mutants induced with X-ray, UV or chemical mutagens. The specific lesions in these mutants have been genetically mapped at high resolution. We have sequenced the ad-8 locus from 13 of these mutants and identified the molecular nature of the mutation in each strain. We compare the historical fine-structure map to the DNA and amino acid sequence of each allele. The placement of the individual lesions in the fine-structure map was more accurate at the 5′ end of the gene and no mutants were identified in the 3′ untranslated region of this gene. We additionally analysed ad-8+ alleles in 18 N. crassa strains subjected to whole-genome sequence analysis and describe the variability among Neurospora strains and among fungi and other organisms.

  13. Locus coeruleus and dopaminergic consolidation of everyday memory

    Science.gov (United States)

    Takeuchi, Tomonori; Duszkiewicz, Adrian J.; Sonneborn, Alex; Spooner, Patrick A.; Yamasaki, Miwako; Watanabe, Masahiko; Smith, Caroline C.; Fernández, Guillén; Deisseroth, Karl; Greene, Robert W.; Morris, Richard G. M.

    2016-01-01

    Summary The retention of episodic-like memory is enhanced, in humans and animals, when something novel happens shortly before or after encoding. Using an everyday memory task in mice, we sought the neurons mediating this dopamine-dependent novelty effect, previously thought to originate exclusively from the tyrosine hydroxylase-expressing (TH+) neurons in the ventral tegmental area (VTA). We report that neuronal firing in the locus coeruleus (LC) is especially sensitive to environmental novelty, LC-TH+ neurons project more profusely than VTA-TH+ neurons to the hippocampus, optogenetic activation of LC-TH+ neurons mimics the novelty effect, and this novelty-associated memory enhancement is unaffected by VTA inactivation. Surprisingly, two effects of LC-TH+ photoactivation are sensitive to hippocampal D1/D5 receptor blockade and resistant to adrenoceptors blockade – memory enhancement and long lasting potentiation of synaptic transmission in CA1 ex vivo. Thus, LC-TH+ neurons can mediate post-encoding memory enhancement in a manner consistent with possible co-release of dopamine in hippocampus. PMID:27602521

  14. Pupil diameter covaries with BOLD activity in human locus coeruleus.

    Science.gov (United States)

    Murphy, Peter R; O'Connell, Redmond G; O'Sullivan, Michael; Robertson, Ian H; Balsters, Joshua H

    2014-08-01

    The locus coeruleus-noradrenergic (LC-NA) neuromodulatory system has been implicated in a broad array of cognitive processes, yet scope for investigating this system's function in humans is currently limited by an absence of reliable non-invasive measures of LC activity. Although pupil diameter has been employed as a proxy measure of LC activity in numerous studies, empirical evidence for a relationship between the two is lacking. In the present study, we sought to rigorously probe the relationship between pupil diameter and BOLD activity localized to the human LC. Simultaneous pupillometry and fMRI revealed a relationship between continuous pupil diameter and BOLD activity in a dorsal pontine cluster overlapping with the LC, as localized via neuromelanin-sensitive structural imaging and an LC atlas. This relationship was present both at rest and during performance of a two-stimulus oddball task, with and without spatial smoothing of the fMRI data, and survived retrospective image correction for physiological noise. Furthermore, the spatial extent of this pupil/LC relationship guided a volume-of-interest analysis in which we provide the first demonstration in humans of a fundamental characteristic of animal LC activity: phasic modulation by oddball stimulus relevance. Taken together, these findings highlight the potential for utilizing pupil diameter to achieve a more comprehensive understanding of the role of the LC-NA system in human cognition.

  15. A locus regulating bronchial hyperresponsiveness maps to chromosome 5q

    Energy Technology Data Exchange (ETDEWEB)

    Levitt, R.C.; Meyers, D.A. [Johns Hopkins Medical Institutions, Baltimore, MD (United States); Bleecker, E.R. [Univ. of Maryland, Baltimore, MD (United States)] [and others

    1994-09-01

    Bronchial hyperresponsiveness (BHR) is one of the hallmarks of asthma. BHR correlates well with asthmatic symptoms and the response to treatment. Moreover, BHR appears to be closely related to airways inflammation. Numerous studies have demonstrated a familial aggregation; however, this phenotype is not likely inherited as a simple Mendelian trait. BHR is also closely associated with total serum IgE levels, as are allergy and asthma. We studied 92 families from Northern Holland ascertained through a parent with asthma who were originally studied between 1962-1970. Since there are a number of candidate genes on chromosome 5q potentially important in producing BHR, families were genotyped for markers in this region. These genes regulate IgE production and the cellular elements that are likely involved in inflammation associated with BHR, allergy and asthma. They include IL-4, IL-3, IL-5, IL-9, IL-12, IL-13 and GM-CSF. Linkage of BHR with markers on 5q was tested using a model free sib-pair method. The data suggest a locus for BHR maps near the cytokine gene cluster on 5q. This region appears critical in producing susceptibility to BHR and possibly to asthma.

  16. A genome-wide association study identifies a region at chromosome 12 as a potential susceptibility locus for restenosis after percutaneous coronary intervention

    Science.gov (United States)

    Sampietro, M. Lourdes; Trompet, Stella; Verschuren, Jeffrey J.W.; Talens, Rudolf P.; Deelen, Joris; Heijmans, Bastiaan T.; de Winter, Robbert J.; Tio, Rene A.; Doevendans, Pieter A.F.M.; Ganesh, Santhi K.; Nabel, Elizabeth G.; Westra, Harm-Jan; Franke, Lude; van den Akker, Erik B.; Westendorp, Rudi G.J.; Zwinderman, Aeilko H.; Kastrati, Adnan; Koch, Werner; Slagboom, P.Eline; de Knijff, Peter; Jukema, J. Wouter

    2011-01-01

    Percutaneous coronary intervention (PCI) has become an effective therapy to treat obstructive coronary artery diseases (CAD). However, one of the major drawbacks of PCI is the occurrence of restenosis in 5–25% of all initially treated patients. Restenosis is defined as the re-narrowing of the lumen of the blood vessel, resulting in renewed symptoms and the need for repeated intervention. To identify genetic variants that are associated with restenosis, a genome-wide association study (GWAS) was conducted in 295 patients who developed restenosis (cases) and 571 who did not (controls) from the GENetic Determinants of Restenosis (GENDER) study. Analysis of ∼550 000 single nucleotide polymorphisms (SNPs) in GENDER was followed by a replication phase in three independent case–control populations (533 cases and 3067 controls). A potential susceptibility locus for restenosis at chromosome 12, including rs10861032 (Pcombined = 1.11 × 10−7) and rs9804922 (Pcombined = 1.45 × 10−6), was identified in the GWAS and replication phase. In addition, both SNPs were also associated with coronary events (rs10861032, Padditive = 0.005; rs9804922, Padditive = 0.023) in a trial based cohort set of elderly patients with (enhanced risk of) CAD (PROSPER) and all-cause mortality in PROSPER (rs10861032, Padditive = 0.007; rs9804922, Padditive = 0.013) and GENDER (rs10861032, Padditive = 0.005; rs9804922, Padditive = 0.023). Further analysis suggests that this locus could be involved in regulatory functions. PMID:21878436

  17. The human PINK1 locus is regulated in vivo by a non-coding natural antisense RNA during modulation of mitochondrial function

    DEFF Research Database (Denmark)

    Scheele, Camilla; Petrovic, Natasa; Faghihi, Mohammad A

    2007-01-01

    BACKGROUND: Mutations in the PTEN induced putative kinase 1 (PINK1) are implicated in early-onset Parkinson's disease. PINK1 is expressed abundantly in mitochondria rich tissues, such as skeletal muscle, where it plays a critical role determining mitochondrial structural integrity in Drosophila....... RESULTS: Herein we characterize a novel splice variant of PINK1 (svPINK1) that is homologous to the C-terminus regulatory domain of the protein kinase. Naturally occurring non-coding antisense provides sophisticated mechanisms for diversifying genomes and we describe a human specific non-coding antisense...... expressed at the PINK1 locus (naPINK1). We further demonstrate that PINK1 varies in vivo when human skeletal muscle mitochondrial content is enhanced, supporting the idea that PINK1 has a physiological role in mitochondrion. The observation of concordant regulation of svPINK1 and naPINK1 during in vivo...

  18. GestAqua.AdaPT - Mediterranean river basin modeling and reservoir operation strategies for climate change adaptation

    Science.gov (United States)

    Alexandre Diogo, Paulo; Nunes, João Pedro; Marco, Machado; Aal, Carlo; Carmona Rodrigues, António; Beça, Pedro; Casanova Lino, Rafael; Rocha, João; Carvalho Santos, Cláudia

    2016-04-01

    Climate change (CC) scenarios for the Mediterranean region include an increase in the frequency and intensity of extreme weather events such as drought periods. higher average temperatures and evapotranspiration, combined with the decrease of annual precipitation may strongly affect the sustainability of water resources. In face of these risks, improving water management actions? by anticipating necessary operational measures is required to insure water quantity and quality according to the needs of the populations and irrigation in agriculture. This is clearly the case of the Alentejo region, southern Portugal, where present climatic conditions already pose significant challenges to water resources stakeholders, mainly from the agricultural and the urban supply sectors. With this in mind, the GestAqua.AdaPT project is underway during 2015 and 2016, aiming at analyzing CC impacts until 2100 and develop operational procedures to ensure water needs are adequately satisfied in the Monte Novo and Vigia reservoirs, which supply water for the city of Évora and nearby irrigation systems. Specific project objectives include: a) defining management and operational adaptation strategies aiming to ensure resource sustainability, both quantitatively and qualitatively; b) evaluate future potential costs and available alternatives to the regional water transfer infrastructure linked with the large Alqueva reservoir implemented in 2011; c) defining CC adaptation strategies to reduce irrigation water needs and d) identification of CC adaptation strategies which can be suitable also to other similar water supply systems. The methodology is centered on the implementation of a cascade of modeling tools, allowing the integrated simulation of the multiple variables under analysis. The project is based on CC scenarios resulting from the CORDEX project for 10 combinations of Global and regional climate models (GCMs and RCMs). The study follows by using two of these combinations

  19. Nuclear Regulatory Commission 1989 Information Digest

    Energy Technology Data Exchange (ETDEWEB)

    None,

    1989-03-01

    The Nuclear Regulatory Commission 1989 Information Digest provides summary information regarding the US Nuclear Regulatory Commission, its regulatory responsibilities, and areas licensed by the Commission. This is the first of an annual publication for the general use of the NRC staff and is available to the public. The Digest is divided into two parts: the first presents an overview of the US Nuclear Regulatory Commission and the second provides data on NRC commercial nuclear reactor licensees and commercial nuclear power reactors worldwide.

  20. The Political Economy of Regulatory Risk

    OpenAIRE

    Roland Strausz

    2009-01-01

    I investigate the argument that, in a two–party system with different regulatory objectives, political uncertainty generates regulatory risk. I show that this risk has a fluctuation effect that hurts both parties and an output–expansion effect that benefits one party. Consequently, at least one party dislikes regulatory risk. Moreover, both political parties gain from eliminating regulatory risk when political divergence is small or the winning probability of the regulatory–risk–averse party ...

  1. The political economy of regulatory risk

    OpenAIRE

    Strausz, Roland

    2009-01-01

    I investigate the argument that, in a twoparty system with different regulatory objectives, political uncertainty generates regulatory risk. I show that this risk has a fluctuation effect that hurts both parties and an outputexpansion effect that benefits one party. Consequently, at least one party dislikes regulatory risk. Moreover, both political parties gain from eliminating regulatory risk when political divergence is small or the winning probability of the regulatoryriskaverse party is n...

  2. Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris).

    Science.gov (United States)

    Reeves, Patrick A; He, Yuehui; Schmitz, Robert J; Amasino, Richard M; Panella, Lee W; Richards, Christopher M

    2007-05-01

    In many plant species, exposure to a prolonged period of cold during the winter promotes flowering in the spring, a process termed vernalization. In Arabidopsis thaliana, the vernalization requirement of winter-annual ecotypes is caused by the MADS-box gene FLOWERING LOCUS C (FLC), which is a repressor of flowering. During the vernalization process, FLC is downregulated by alteration of its chromatin structure, thereby permitting flowering to occur. In wheat, a vernalization requirement is imposed by a different repressor of flowering, suggesting that some components of the regulatory network controlling the vernalization response differ between monocots and dicots. The extent to which the molecular mechanisms underlying vernalization have been conserved during the diversification of the angiosperms is not well understood. Using phylogenetic analysis, we identified homologs of FLC in species representing the three major eudicot lineages. FLC homologs have not previously been documented outside the plant family Brassicaceae. We show that the sugar beet FLC homolog BvFL1 functions as a repressor of flowering in transgenic Arabidopsis and is downregulated in response to cold in sugar beet. Cold-induced downregulation of an FLC-like floral repressor may be a central feature of the vernalization response in at least half of eudicot species.

  3. Germ line transcription in mice bearing neor gene downstream of Igamma3 exon in the Ig heavy chain locus.

    Science.gov (United States)

    Samara, Maha; Oruc, Zeliha; Dougier, Hei-Lanne; Essawi, Tamer; Cogné, Michel; Khamlichi, Ahmed Amine

    2006-04-01

    Class switch recombination (CSR) is preceded by germ line transcription that initiates from promoters upstream of switch (S) sequences and terminates downstream of associated constant genes. Previous work showed that germ line transcripts and their processing are required for CSR and that germ line transcription is regulated in a major part by a regulatory region located downstream of the Ig heavy chain locus. This long-range, polarized effect can be disturbed by inserting an expressed neomycine resistance (neo(r)) gene. To contribute to a better understanding of the mechanism of such a long-distance regulation, we generated knock-in mice in which a neo(r) gene was inserted downstream of Igamma3 exon leaving intact all the necessary elements for germ line transcription and splicing. We show that the expressed neo(r) gene interferes with transcription initiation from Igamma3, and that it impairs but does not block S recombination to Cgamma3. Moreover, we show for the first time that the neo(r) gene provides through chimeric neo(r)-Cgamma3 transcripts the necessary elements for splicing of germ line transcripts by activating two novel cryptic splice sites, one in the coding region of the intronless neo(r) gene and the other in the Igamma3-Cgamma3 intron.

  4. Functional characterization of the 12p12.1 renal cancer-susceptibility locus implicates BHLHE41.

    Science.gov (United States)

    Bigot, Pierre; Colli, Leandro M; Machiela, Mitchell J; Jessop, Lea; Myers, Timothy A; Carrouget, Julie; Wagner, Sarah; Roberson, David; Eymerit, Caroline; Henrion, Daniel; Chanock, Stephen J

    2016-07-07

    Genome-wide association studies have identified multiple renal cell carcinoma (RCC) susceptibility loci. Here, we use regional imputation and bioinformatics analysis of the 12p12.1 locus to identify the single-nucleotide polymorphism (SNP) rs7132434 as a potential functional variant. Luciferase assays demonstrate allele-specific regulatory activity and, together with data from electromobility shift assays, suggest allele-specific differences at rs7132434 for AP-1 transcription factor binding. In an analysis of The Cancer Genome Atlas data, SNPs highly correlated with rs7132434 show allele-specific differences in BHLHE41 expression (trend P value=6.3 × 10(-7)). Cells overexpressing BHLHE41 produce larger mouse xenograft tumours, while RNA-seq analysis reveals that constitutively increased BHLHE41 induces expression of IL-11. We conclude that the RCC risk allele at 12p12.1 maps to rs7132434, a functional variant in an enhancer that upregulates BHLHE41 expression which, in turn, induces IL-11, a member of the IL-6 cytokine family.

  5. 40 CFR 94.6 - Regulatory structure.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Regulatory structure. 94.6 Section 94... for Compression-Ignition Marine Engines § 94.6 Regulatory structure. This section provides an overview of the regulatory structure of this part. (a) The regulations of this Part 94 are intended to...

  6. 40 CFR 92.6 - Regulatory structure.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Regulatory structure. 92.6 Section 92... Regulations for Locomotives and Locomotive Engines § 92.6 Regulatory structure. This section provides an overview of the regulatory structure of this part. (a) The regulations of this part 92 are intended...

  7. 21 CFR 500.88 - Regulatory method.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 6 2010-04-01 2010-04-01 false Regulatory method. 500.88 Section 500.88 Food and... § 500.88 Regulatory method. (a) The sponsor shall submit for evaluation and validation a regulatory method developed to monitor compliance with FDA's operational definition of no residue. (b)...

  8. 77 FR 10351 - Regulatory Review Plan

    Science.gov (United States)

    2012-02-22

    ... XII Regulatory Review Plan AGENCY: Federal Housing Finance Agency. ACTION: Notice of final regulatory review plan. SUMMARY: The Federal Housing Finance Agency (FHFA) is issuing a notice of the final FHFA regulatory review plan for review of existing regulations under Executive Order 13579, ``Regulation...

  9. Time Prediction for Reyes Rendering Architecture Based on AdaBoost.MH Algorithm%基于AdaBoost.MH的Reyes渲染架构时间预估算法

    Institute of Scientific and Technical Information of China (English)

    孟庆利; 吕琳; 靳颖; 孟祥旭; 孟雷

    2014-01-01

    在大规模真实感渲染系统中,需要对渲染任务进行分解和调度,将其优化后分配给不同的可用计算资源,实现快速集群渲染.为了实现渲染任务的有效分解和调度,提高并行效率,高精度的时间预估算法是不可欠缺的.通过深入研究使用RenderMan规范的渲染器常用的Reyes渲染架构中对渲染时间产生影响的各种因素,分析提取出影响渲染时间的7大要素特征,提出了基于AdaBoost.MH的渲染时间预估算法.通过在基于Reyes渲染架构的渲染引擎中的实验与测试表明,训练集和测试集的准确率分别达到79%和78%,为渲染任务的并行调度奠定了基础,同时也为渲染费用预估提供了依据.

  10. Relationship among prospective parents' locus of control, social desirability, and choice of psychoprophylaxis.

    Science.gov (United States)

    Windwer, C

    1977-01-01

    This study sought to determine if there is a relationship among locus of control, social desirability, and choice of psychoprophylaxis (PPM). It was hypothesized that internal locus of control and low social desirability would correlate significantly with the choice of PPM by husbands and wives; that externally controlled wives who participated in PPM would have more internally controlled husbands than externally controlled wives who participated in PPM would have more internally controlled husbands than externally controlled wives who did not participate; and that locus of control and social desirability, when taken together, would be better predictors of choice of PPM than either taken separately. Ninety-eight middle-class nulliparous couples, participant and non-participant, were studied in the seventh or eighth month of the wife's pregnancy. Rotter's I-E Scale and the Marlowe-Crowne Social Desirability Scale were used to measure locus of control and social desirability. Study findings did not support the hypotheses.

  11. A robust multiple-locus method for quantitative trait locus analysis of non-normally distributed multiple traits.

    Science.gov (United States)

    Li, Z; Möttönen, J; Sillanpää, M J

    2015-12-01

    Linear regression-based quantitative trait loci/association mapping methods such as least squares commonly assume normality of residuals. In genetics studies of plants or animals, some quantitative traits may not follow normal distribution because the data include outlying observations or data that are collected from multiple sources, and in such cases the normal regression methods may lose some statistical power to detect quantitative trait loci. In this work, we propose a robust multiple-locus regression approach for analyzing multiple quantitative traits without normality assumption. In our method, the objective function is least absolute deviation (LAD), which corresponds to the assumption of multivariate Laplace distributed residual errors. This distribution has heavier tails than the normal distribution. In addition, we adopt a group LASSO penalty to produce shrinkage estimation of the marker effects and to describe the genetic correlation among phenotypes. Our LAD-LASSO approach is less sensitive to the outliers and is more appropriate for the analysis of data with skewedly distributed phenotypes. Another application of our robust approach is on missing phenotype problem in multiple-trait analysis, where the missing phenotype items can simply be filled with some extreme values, and be treated as outliers. The efficiency of the LAD-LASSO approach is illustrated on both simulated and real data sets.

  12. Genetic flexibility of regulatory networks.

    Science.gov (United States)

    Hunziker, Alexander; Tuboly, Csaba; Horváth, Péter; Krishna, Sandeep; Semsey, Szabolcs

    2010-07-20

    Gene regulatory networks are based on simple building blocks such as promoters, transcription factors (TFs) and their binding sites on DNA. But how diverse are the functions that can be obtained by different arrangements of promoters and TF binding sites? In this work we constructed synthetic regulatory regions using promoter elements and binding sites of two noninteracting TFs, each sensing a single environmental input signal. We show that simply by combining these three kinds of elements, we can obtain 11 of the 16 Boolean logic gates that integrate two environmental signals in vivo. Further, we demonstrate how combination of logic gates can result in new logic functions. Our results suggest that simple elements of transcription regulation form a highly flexible toolbox that can generate diverse functions under natural selection.

  13. Followers feel valued : When leaders' regulatory focus makes leaders exhibit behavior that fits followers' regulatory focus

    NARCIS (Netherlands)

    Hamstra, Melvyn; Sassenberg, K.; Van Yperen, Nico W.; Wisse, Barbara

    2014-01-01

    When do followers feel valued by their leader? We propose that leaders' regulatory focus can make followers feel valued when leaders' regulatory focus is the same as followers' regulatory focus, that is, when there is regulatory fit between leaders and followers. We further propose that the reason w

  14. 77 FR 1524 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving...

    Science.gov (United States)

    2012-01-10

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving..., 2011, the Financial Industry Regulatory Authority, Inc. (``FINRA'') filed with the Securities and... effective date of the proposed rule change in a Regulatory Notice to be published no later than 60...

  15. 76 FR 20741 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting...

    Science.gov (United States)

    2011-04-13

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Granting... On February 4, 2011, the Financial Industry Regulatory Authority, Inc. (``FINRA'') filed with the... implementation of New Rule 13806 (Promissory Note Proceedings) in Regulatory Notice 09-48 (August 2009)....

  16. 78 FR 54359 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing...

    Science.gov (United States)

    2013-09-03

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing and... Rule 19b-4 thereunder,\\2\\ notice is hereby given that on August 20, 2103, Financial Industry Regulatory.... \\3\\ 15 U.S.C. 78s(b)(3)(A)(i). \\4\\ 17 CFR 240.19b-4(f)(1). ] I. Self-Regulatory...

  17. 78 FR 10655 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a...

    Science.gov (United States)

    2013-02-14

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a...) February 8, 2013. I. Introduction On December 20, 2012, Financial Industry Regulatory Authority, Inc... Equity Securities.\\5\\ FINRA may impose a ``Foreign Regulatory Halt'' when a foreign securities...

  18. 75 FR 17810 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing...

    Science.gov (United States)

    2010-04-07

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing and... Rule 19b-4 thereunder,\\2\\ notice is hereby given that on March 12, 2010, Financial Industry Regulatory...-Regulatory Organization's Statement of the Terms of Substance of the Proposed Rule Change FINRA is...

  19. 77 FR 33527 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing of...

    Science.gov (United States)

    2012-06-06

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing of... hereby given that on May 23, 2012, Financial Industry Regulatory Authority, Inc. (``FINRA'') filed with.... 78s(b)(1). \\2\\ 17 CFR 240.19b-4. I. Self-Regulatory Organization's Statement of the Terms of...

  20. 77 FR 12092 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing of...

    Science.gov (United States)

    2012-02-28

    ... COMMISSION Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing of...\\ notice is hereby given that February 9, 2012, Financial Industry Regulatory Authority, Inc. (``FINRA... interested persons. \\1\\ 15 U.S.C. 78s(b)(1). \\2\\ 17 CFR 240.19b-4. I. Self-Regulatory...