Relevant bibliographies by topics / OMP

Academic literature on the topic 'OMP'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "OMP"

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Hwang, K., M. Dubois, D. K. Panda, S. Rao, S. Shang, A. Uresin, W. Mao, et al. "OMP." ACM SIGARCH Computer Architecture News 18, no. 3b (September 1990): 7–22. http://dx.doi.org/10.1145/255129.255133.

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Wu, Ting-Huai, and Xin-Xing Gu. "Outer Membrane Proteins as a Carrier for Detoxified Lipooligosaccharide Conjugate Vaccines for NontypeableHaemophilus influenzae." Infection and Immunity 67, no. 10 (October 1, 1999): 5508–13. http://dx.doi.org/10.1128/iai.67.10.5508-5513.1999.

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ABSTRACT Nontypeable Haemophilus influenzae (NTHi) is a common cause of otitis media and respiratory tract infections. Outer membrane proteins (OMP) and lipooligosaccharide (LOS) are major surface antigens of NTHi and potential vaccine candidates. De-O-acylated LOS (dLOS) or oligosaccharide (OS) was coupled to total OMP to form dLOS-OMP and OS-OMP conjugates, while a dLOS-tetanus toxoid (TT) was synthesized for comparison. These conjugates were evaluated in mice and rabbits for immunogenicity. dLOS-OMP elicited a better boostable antibody response against LOS than did dLOS-TT, while OS-OMP was not immunogenic. Formulation of the conjugates with Ribi adjuvant significantly enhanced the immunogenicity of dLOS-OMP and dLOS-TT but not that of OS-OMP. In addition, rabbit antisera elicited by dLOS-OMP but not dLOS-TT (or OMP alone) demonstrated bactericidal activity against 40% of the NTHi strains tested. These results indicate that dLOS is a better derivative of LOS than OS and that OMP is a good carrier for NTHi LOS-based conjugate vaccines.
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Øksendal, A. N., T. Bach-Gansmo, T. Flem Jacobsen, H. Eide, and E. Andrew. "Oral Magnetic Particles." Acta Radiologica 34, no. 2 (March 1993): 187–93. http://dx.doi.org/10.1177/028418519303400217.

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Oral magnetic particles (OMP) have been evaluated in a clinical phase II trial program comprising 216 patients in 7 European centers. Adult patients referred for MR imaging for various abdominal pathologies were examined. The patients received OMP at a concentration of 0.1 g/l (ultralow field) or 0.5 g/l (mid/high field) and OMP was diluted in water or in a more viscous liquid formulation. Depending on the area of interest, OMP was ingested in a volume of 300 to 800 ml. OMP was well tolerated with no serious adverse events and the patient acceptability was good. OMP had a good contrast effect on all applied pulse sequences. The viscous formulation of OMP was homogeneously distributed through the entire gastrointestinal tract without inducing disturbing susceptibility artifacts. The postcontrast diagnostic information was improved in 70% of the cases. Based on the encouraging results in phase II, OMP has been advanced to phase III clinical trials.
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Erwin, Alice L., George E. Kenny, Arnold L. Smith, and Terrence L. Stull. "Human antibody response to outer membrane proteins and fimbriae of Haemophilus influenzae type b." Canadian Journal of Microbiology 34, no. 6 (June 1, 1988): 723–29. http://dx.doi.org/10.1139/m88-123.

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We investigated the prevalence of antibodies in childrens' sera directed against outer membrane proteins (OMP) and fimbriae of Haemophilus influenzae type b. Invasive isolates of H. influenzae type b were enriched for fimbriae production; OMP and fimbriae were resolved by SDS-PAGE. After blotting to nitrocellulose, the proteins were incubated with homologous patient sera or with sera from healthy children. IgG antibodies bound to OMP were detected by immunoperoxidase staining. Immunoblotting was also performed using purified, nondenatured fimbriae as antigen. Nine of the 10 patients studied had antibodies in the acute serum directed against one or more of the OMP. Neither the acute nor the convalescent serum of the remaining patient contained antibodies against OMP. Antibodies against a greater number of OMP were present in the convalescent serum, in comparison to the acute serum, in 4 of the 10 patients. Five of 10 patients had antibodies against the purified fimbriae of an unrelated invasive isolate in either the acute or the convalescent serum. Acute sera from patients more frequently contained antibodies directed against OMP 60K (p ≤ 0.01) and OMP 51K (p ≤ 0.003) compared with the sera of healthy controls. In contrast, the sera of healthy children more frequently contained antibodies directed against OMP 40K (p ≤ 0.04). Sera from both patients and controls contained antibodies against commensal Haemophilus. We conclude that although antibodies against OMP are commonly present in healthy children, antibodies against certain OMP may be markers for susceptibility or protection.
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Zhang, Chunbin, Qingming Xiong, Takane Kikuchi, and Yasuko Rikihisa. "Identification of 19 Polymorphic Major Outer Membrane Protein Genes and Their Immunogenic Peptides in Ehrlichia ewingii for Use in a Serodiagnostic Assay." Clinical and Vaccine Immunology 15, no. 3 (December 19, 2007): 402–11. http://dx.doi.org/10.1128/cvi.00366-07.

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ABSTRACT Ehrlichia ewingii, a tick-transmitted rickettsia previously known only as a canine pathogen, was recently recognized as a human pathogen. E. ewingii has yet to be cultivated, and there is no serologic test available to diagnose E. ewingii infection. Previously, a fragment (505 bp) of a single E. ewingii gene homologous to 1 of 22 genes encoding Ehrlichia chaffeensis immunodominant major outer membrane proteins 1 (OMP-1s)/P28s was identified. The purposes of the present study were to (i) determine the E. ewingii omp-1 gene family, (ii) determine each OMP-1-specific peptide, and (iii) analyze all OMP-1 synthesized peptides for antigenicity. Using nested touchdown PCR and a primer walking strategy, we found 19 omp-1 paralogs in E. ewingii. These genes are arranged in tandem downstream of tr1 and upstream of secA in a 24-kb genomic region. Predicted molecular masses of the 19 mature E. ewingii OMP-1s range from 25.1 to 31.3 kDa, with isoelectric points of 5.03 to 9.80. Based on comparative sequence analyses among OMP-1s from E. ewingii and three other Ehrlichia spp., each E. ewingii OMP-1 oligopeptide that was predicted to be antigenic, bacterial surface exposed, unique in comparison to the other E. ewingii OMP-1s, and distinct from those of other Ehrlichia spp. was synthesized for use in an enzyme-linked immunosorbent assay. Plasmas from experimentally E. ewingii-infected dogs reacted significantly with most of the OMP-1-specific peptides, indicating that multiple OMP-1s were expressed and immunogenic in infected dogs. The results support the utility of the tailored OMP-1 peptides as E. ewingii serologic test antigens.
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Mahelingga, Dhevi Enlivena Irene Restia. "Penerbitan buku ilmiah daring berbasis open monograph press (OMP)." Berkala Ilmu Perpustakaan dan Informasi 16, no. 2 (December 1, 2020): 155–69. http://dx.doi.org/10.22146/bip.v16i2.265.

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Introduction. There has been limited discussion on Open Monograph Press (OMP) although its potential is recognized to support academic publications in Indonesia. This is due to the lack of access to information and dissemination of OMP by academic publishers that have implemented OMP in their publication process. Data Collection Method. This paper used a qualitative approach by starting the elaboration publication process in Lembaga Ilmu Pengetahuan Indonesia (LIPI) Press. This paper examined how OMP-based online publishing system is able to accommodate book publishing process in LIPI Press. Primary data in this study was collected through records of the user interface of the online page of LIPI Press which uses OMP. Data Analysis. The data was analyzed by using a descriptive-analytic approach. Results and Discussions. OMP is useful not only to accommodate all roles and processes of scientific publication but also to accommodate the publisher's need for a catalog website. OMP metadata can be indexed by Google Scholar and can be a helpful tool for product distribution. Conclusion. OMP is suggested to become a standard in publication process.
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Shahin, R. D., M. J. Brennan, Z. M. Li, B. D. Meade, and C. R. Manclark. "Characterization of the protective capacity and immunogenicity of the 69-kD outer membrane protein of Bordetella pertussis." Journal of Experimental Medicine 171, no. 1 (January 1, 1990): 63–73. http://dx.doi.org/10.1084/jem.171.1.63.

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Immunization with the 69-kD outer membrane protein (OMP) of Bordetella pertussis protected neonatal mice against lethal respiratory challenge with B. pertussis 18323. Active immunization elicited a serum IgG anti-69-kD OMP response at the time of challenge, with IgG anti-69-kD OMP antibodies detected in bronchoalveolar lavage fluid after challenge. Intravenous administration of BPE8, a monoclonal IgG1 anti-69-kD OMP, also protected young mice against B. pertussis challenge. Intravenously injected BPE8 was detected in the lungs of mice at the time of aerosol challenge, suggesting that the presence of specific antibody in the lungs may mediate protection. Thus the 69-kD OMP of B. pertussis is a protective antigen in mice that elicits specific serum antibody that can transude to the lung. The 69-kD OMP was detected in a preparation of a Takeda acellular vaccine by immunoblot analysis and a serum antibody response to the 69-kD OMP was observed in 18-mo-old children boosted with this preparation of Japanese acellular vaccine. Our results demonstrate that the B. pertussis 69-kD OMP is a protective antigen in animals, is immunogenic in humans, and is present in a preparation of acellular pertussis vaccine that is widely used in Japan. These findings indicate that the 69-kD OMP should be seriously considered as a candidate for inclusion in new formulations of antigenically defined acellular pertussis vaccines.
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Adlowitz, Diana G., Sanjay Sethi, Paul Cullen, Ben Adler, and Timothy F. Murphy. "Human Antibody Response to Outer Membrane Protein G1a, a Lipoprotein of Moraxella catarrhalis." Infection and Immunity 73, no. 10 (October 2005): 6601–7. http://dx.doi.org/10.1128/iai.73.10.6601-6607.2005.

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ABSTRACT Moraxella catarrhalis is an important cause of respiratory infections in adults with chronic obstructive pulmonary disease (COPD) and of otitis media in children. Outer membrane protein (OMP) G1a is an ∼29-kDa surface lipoprotein and is a potential vaccine candidate. The gene that encodes OMP G1a was expressed and purified using a novel plasmid vector. [3H]palmitic acid labeling demonstrated that both native and recombinant OMP G1a contain covalently bound palmitic acid. To assess the expression of OMP G1a during human infection, paired sera and sputum supernatants from adults with COPD followed prospectively were studied by enzyme-linked immunosorbent assays with recombinant lipidated OMP G1a to detect antibodies made specifically during carriage of M. catarrhalis. Overall, 23% of patients developed either a serum immunoglobulin G (IgG) response (9%) or sputum IgA response (21%) to OMP G1a, following 100 episodes of acquisition and clearance of M. catarrhalis. Patients developed antibody responses at similar rates following episodes of clinical exacerbation compared to asymptomatic colonization. Serum IgG antibodies following natural infection were directed predominantly at OMP G1a epitopes that are not exposed on the bacterial surface. These data show that OMP G1a is expressed during infection of the human respiratory tract and is a target of systemic and mucosal antibodies. These observations indicate that OMP G1a, a highly conserved surface protein, should be evaluated further as a vaccine candidate.
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Milner, Nicholas P., Michael R. Johnson, and Kim J. Perry. "Determination of Sulfadimethoxine and Ormetoprim Residues in Channel Catfish Fillets After Treatment with Romet and Evaluation of a Commercially Available Rapid Diagnostic Test for Drug Residues in Fish Fillets." Journal of AOAC INTERNATIONAL 77, no. 4 (July 1, 1994): 875–81. http://dx.doi.org/10.1093/jaoac/77.4.875.

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Abstract Sulfadimethoxine (SDM) and ormetoprim (OMP) residues were determined in catfish fillets after treatment with Romet. A liquid chromatographic (LC) method capable of simultaneously detecting SDM and OMP at 0.05–40 ppm was used. The recoveries were 92% for SDM and 108% for OMP. The intra- assay variabilities were determined for SDM and OMP at fortification levels of 0.05–40 ppm, and a coefficient of variation (CV) of less than 10% was achieved at all levels. The interassay variations were determined at fortification levels of 0.1 ppm (CVs: SDM, 6.4%; OMP, 4.9%) and 1.0 ppm (CVs: SDM, 2.8%; OMP, 3.5%). SDM and OMP residues in catfish fillets were rapidly depleted after treatment with Romet. By day 2 posttreatment, SDM and OMP were essentially nondetectable. The use of an enzyme-linked immunoassay (ELISA)-based rapid diagnostic test to determine SDM and OMP in catfish fillets was evaluated. An assay procedure to adapt the test for residues in tissue samples was developed. SDM and OMP were extracted from ground catfish fillet with methanol–water (80 + 20, v/v); the extract was diluted with buffer and filtered, and the filtrate was then tested with an EZ Screen test card. The effectiveness of the rapid test assay to detect SDM residues at levels above the U.S. Food and Drug Administration tolerance (0.1 ppm) was verified with fillets from Romet-treated catfish. All samples with residues at >0.1 ppm were identified correctly by the test. The results indicate that the diagnostic test could be used as a rapid method for monitoring Romet residues in catfish.
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Berenson, Charles S., Timothy F. Murphy, Catherine T. Wrona, and Sanjay Sethi. "Outer Membrane Protein P6 of Nontypeable Haemophilus influenzae Is a Potent and Selective Inducer of Human Macrophage Proinflammatory Cytokines." Infection and Immunity 73, no. 5 (May 2005): 2728–35. http://dx.doi.org/10.1128/iai.73.5.2728-2735.2005.

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ABSTRACT Interactions of nontypeable Haemophilus influenzae (NTHI) with human macrophages contribute to the pathogenesis of NTHI-induced infection in humans. However, the immunologic mechanisms that initiate and perpetuate NTHI-mediated macrophage responses have not been well explored. Outer membrane protein (OMP) P6 is a conserved lipoprotein expressed by NTHI in vivo that possesses a Pam3Cys terminal motif, characteristic of immunoactive bacterial lipoproteins associated with Toll-like receptor signaling. We theorized that OMP P6 is a potent immunomodulator of human macrophages. To test this hypothesis, we purified OMP P6 as well as OMP P2, the predominant NTHI outer membrane protein, and lipooligosaccharide (LOS), the specific endotoxin of NTHI, from NTHI strain 1479. Human blood monocyte-derived macrophages, purified from healthy donors, were incubated with each outer membrane constituent, and cytokine production of macrophage supernatants interleukin-1β (IL-1β), tumor necrosis factor α (TNF-α), IL-10, IL-12, and IL-8 was measured. OMP P6 selectively upregulated IL-10, TNF-α, and IL-8. While OMP P6 (0.1 μg/ml for 8 h) elicited slightly greater concentrations of IL-10, it resulted in over ninefold greater concentrations of TNF-α and over fourfold greater concentrations of IL-8 than did OMP P2. OMP P6 at doses as low as 10 pg/ml was still effective at induction of macrophage IL-8, while OMP P2 and LOS were not. OMP P6 of NTHI is a specific trigger of bacteria-induced human macrophage inflammatory events, with IL-8 and TNF-α as key effectors of P6-induced macrophage responses.
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Dissertations / Theses on the topic "OMP"

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Higgins, Anna Juman. "The mechanism of BAM-assisted OMP folding." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/22507/.

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Outer membrane proteins (OMPs) mediate the survival and pathogenicity of Gram negative bacteria. The biogenesis of these proteins, however, presents problems as they must be transported to, inserted and folded correctly in the outer membrane in the absence of ATP. This problem is resolved by the β-barrel assembly machinery (BAM) complex: a ~203 kDa complex of five proteins (BamA-E) that enables the membrane insertion and folding of substrate OMPs on a physiological timescale. Despite available crystal structures, the mechanism of this vital protein complex remains poorly understood. In this thesis I use a variety of structural and biochemical tools to probe the nature of BAM-assisted OMP folding, particularly the role of BamA dynamics. Successful purification of the intact BAM complex in the detergent DDM allowed the first cryo-electron microscopy structure of the complex to be obtained, at a resolution of 4.9 Å. This reveals the intact BAM complex with BamA in a laterally-open conformation in which the first (β1) and last (β16) strands of the barrel are no longer hydrogen bonded. In addition, biochemical assays provide the first in vitro evidence of the functional importance of BamA lateral gating in OMP folding. These assays demonstrate that in a reconstituted system utilising the BAM complex, inhibiting the lateral gating of BamA by incorporating new disulphide bonds diminishes the ability of BAM to assist substrate folding. This is shown with two different OMP substrates, tOmpA (the β-barrel domain of OmpA) and OmpT. In synthetic lipids, however, the presence of prefolded BamA is sufficient to aid substrate folding and inhibition of lateral gating by disulphide bonding in this case does not diminish the catalytic effect. The results indicate that BamA likely adopts different roles depending on substrate and lipid. Furthermore, this thesis discusses preliminary experiments towards determining the significance of the β-signal: a conserved sequence found towards the C-terminus of OMPs hypothesised to be important for recognition by BamA. The results show that while some mutations may slow the protein's intrinsic folding into the membrane they do not affect the apparent BamA-catalysed folding rate. However, other single amino-acid substitutions appear to incur a large energetic penalty, rendering the protein incapable of adopting its stable β-barrel structure. Combined, the data allow us to begin dissecting the mechanism of BAM-assisted folding of OMPs, particularly the role of BamA in passive membrane destabilization or active lateral opening.
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Thotakura, Gangadaar. "Structural prediction analysis of ehrlichia chaffeensis outer membrane proteins, p28 Omp-14 and p28 Omp-19 assessed by circular dichrosim and porin assays." Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/9098.

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Master of Science
Department of Diagnostic Medicine/Pathobiology
Roman Reddy R. Ganta
Ehrlichia chaffeensis, a Gram-negative organism belonging to the order Rickettsiales, is responsible for an emerging infectious disease in humans, the human monocytic ehrlichiosis. E. chaffeensis also infects several other vertebrate hosts including dogs, goats, coyotes and white tailed deers. This organism is transmitted by an infected tick, Amblyomma americanum. The exact pathogenic mechanisms involved for the persistence of the pathogen in vertebrate hosts are still unclear. E. chaffeensis protein expression varies significantly in vertebrate and tick hosts. Differentially expressed proteins include the immunodominant outer membrane proteins encoded by the p28-Omp multigene locus. The p28-Omp 14 is expressed primarily in tick cells and the p28-Omp 19 is the major expressed protein in macrophages both under in vitro and in vivo conditions. The objective of this study is to prepare recombinant proteins and use them to assess the secondary structures and protein functions. The protein sequences were analyzed with the aid of bioinformatics programs to make structural predictions. The analysis suggested the presence of eight β barrel structures for both the p28-Omp proteins. The coding sequence of the p28-Omp genes were cloned and over expressions of proteins in in E. coli was accomplished by using the plasmid expression construct, pET28. The proteins were purified to near homogeneity and used to refold using detergents to mimic native protein structure in the bacterial outer membrane. Refolding of proteins was analyzed by two methods; SDS-PAGE and Circular Dichroism. The Circular dichroism spectroscopy analysis suggested the formation of β-sheet structures of proteins in micelles formed with the detergents. β-sheet structures may have been formed with the hydrophobic domains of the protein imbedded in the micelles. The hydrophilic segments (predicted by bio informatics analysis) may be exposed to the aqueous phase. The recombinant proteins were also iii used to prepare proteoliposomes and tested for the porin activity. The analysis demonstrated the porin activity for both p28-Omp 14 and 19 recombinant proteins by using mono-, di- and tetra- saccharides as well as for amino acid L-glutamine. This study forms the basis for initiating studies to compare the structural difference between the two differentially expressed proteins of E. chaffeensis.
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McCallan, Lyanne Mary. "Differentiation of Campylobacter jejuni on the basis of outer membrane protein (OMP) patterns." Thesis, University of Ulster, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422191.

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Napolitano, John. "L’EMPLOI, PAR LES FORCES DES NATIONS UNIES ENGAGÉES DANS LES OPÉRATIONS DE MAINTIEN DE LA PAIX (OMP), DE TOUTES LES MESURES NÉCESSAIRES À LA PROTECTION DES CIVILS EN DANGER." Doctoral thesis, Universite Libre de Bruxelles, 2018. https://dipot.ulb.ac.be/dspace/bitstream/2013/277133/4/OMPdesNU.pdf.

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Les mandats incluant la protection de populations civiles font-ils naître des obligations dont la violation serait susceptible de générer une responsabilité internationale ?Les OMP dotées de ce type de mandat dit « robuste » doivent-elles respecter les règles du jus ad bellum et du jus in bello durant l’exécution de leur mandat ?À quelle entité internationale, Nations Unies et/ou États fournisseurs, faut-il attribuer la responsabilité en cas de violation du mandat (défaut d'accomplissement du mandat et/ou de dépassement de celui-ci) ou des obligations internationales de la part des OMP dotées de mandat « robuste » étant donné qu’elles sont formées de contingents militaires dépendant, au plan fonctionnel, des Nations Unies et, au plan hiérarchique, des pays d’appartenance ?Dans la présente thèse, après avoir analysé le fondement juridique, les caractéristiques et la structure de commandement des opérations de maintien de la paix ainsi que l’évolution historique du mandat quant à la protection de la population civile, nous avons tenté de répondre à ces questions en démontrant que, même si la protection des civils en danger est une marque distinctive des OMP dotées d’un mandat robuste et, donc, une des conditions légitimant l’emploi de la force, l’usage de la force doit être considérée comme une option laissée au pouvoir discrétionnaire des opérations de maintien de la paix qui, normalement, préfèrent adopter des mesures de prévention et d’atténuation pour protéger la population civile.En cas d’intervention, les OMP doivent respecter les principes de nécessité et proportionnalité de la légitime défense (jus ad bellum) auxquels s’ajoutent les obligations découlant des normes pour la protection des droits de l’homme et des principes du droit international humanitaire lorsque les Forces des Nations Unies « participent activement à des combats » (jus in bello). À la lumière de ces considérations, on démontrera l’illégitimité, au plan du jus ad bellum et du jus in bello, de l’opération militaire de l’ONUCI qui, le 11 avril 2011, en Côte d’Ivoire a conduit à l’arrestation du président Laurent Gbagbo. Elle constitue un cas d’étude intéressant, puisqu’il s’agit d’un épisode exceptionnel qui n’a pas d’équivalent dans d’autres opérations conduites par les OMP dotées de mandat « robuste ».Enfin, compte tenu de la double dépendance des contingents militaires, qui relèvent fonctionnellement de la chaîne de commandement des Nations Unies et hiérarchiquement de l’État d’envoi, et vu les pouvoirs dont ces entités disposent sur ces forces et l’influence qu’elles exercent sur les processus de décision de leurs contingents, on démontrera que la responsabilité pour fait illicite commis par une OMP dotée de mandat robuste pourra être attribuée, selon le cas, aux Nations Unies, aux États fournisseurs ou bien à ces deux entités conjointement.
Doctorat en Sciences juridiques
info:eu-repo/semantics/nonPublished
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Taylor-Burds, Carol. "When Animal Housing and Strain Difference Matter: Cellular and Behavioral Studies in Mouse Olfaction." ScholarWorks @ UVM, 2011. http://scholarworks.uvm.edu/graddis/228.

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Winder, Catherine Louise. "Studies on T-OMP and the development of antimicrobial tolerance in Pseudomonas aeruginosa PAO1." Thesis, Abertay University, 2000. https://rke.abertay.ac.uk/en/studentTheses/40456eb9-d4a9-4da2-a857-6c41b8aed7e1.

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Pseudomonas aeruginosa displays high levels of tolerance and resistance to many antimicrobial agents. Much of this tolerance is related to the nature of the Gram-negative cell envelope and in particular, the outer membrane. The outer membrane plays an important role in excluding harmful molecules from the cell, whilst being selectively permeable to other solutes via its implanted proteins (outer membrane proteins or OMPs). In order to exert their antibacterial action, antimicrobial agents must enter the cell and attain sufficiently high concentrations at their target site(s). The OMPs are highly sensitive to environmental changes and have a physiological ability to respond to such changes. It is thought that the altered cell envelope structure contributes to the accessibility of antimicrobial agents into the cell interior and resistance to such agents is related to over expression or loss of certain OMPs. Brozel and Cloete (1994) observed a gradual increase in tolerance to increasing concentrations of biocide upon exposure of P. aeruginosa to KathonTM, a commercial biocide containing 1.15% v/v 5-chloro-N-methylisothiazolone (CMIT) and 0.35% v/v N-methylisothiazolone (MIT). This adaptation was associated with the concurrent disappearance of a 35kDa OMP, designated T-OMP. Therefore, they concluded that the biocide entered the sensitive cells via the T-OMP and that the observed resistance was the result of the absence of this OMP. The aim of this investigation was to induce tolerance in cultures of P. aeruginosa PAOl towards the pure active forms of the three isothiazolone biocides 1,2-benzisothiazolone (BIT), MIT, CMIT and the thiol-interactive agent thiomersal (used as a positive control). An increase was observed in the minimum inhibitory concentrations (MIC) of all four biocides by at least 58% between the sensitive and resistant cultures. In some cases the percentage increase in MIC was in excess of 150%. However, when the tolerant cells were removed from the presence of the biocide, the MIC began to decrease, indicating a loss in tolerance. Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDSPAGE) analysis of the OMP profiles from the tolerant-induced cultures illustrated the loss of T-OMP in all cases. Analysis of the sensitive and resistant cultures using twodimensional polyacrylamide gel electrophoresis (2D-PAGE) indicated that the T-OMP disappeared in the tolerant cultures. However, these observations also suggested that other outer membrane alterations occur concurrently in T-OMP depleted tolerant cells. Investigations into the cross-resistance of the resistant cultures towards the other test biocides, indicated that resistance was, to some extent, transferable, once it had been developed towards one member of the biocide group. Following routine passaging of the resistant cultures on gradient plates two distinct colonial morphologies were observed, mucoid and non-mucoid. An increase in the cell surface hydrophobicity was noted between the mucoid and non-mucoid cultures, which indicated a loss or reduction in the B-band OPolysaccharide. However, there were no observable differences in the lipopolysaccharide banding patterns between the mucoid and non-mucoid cells. These observations suggested that other alterations were occurring in the tolerant cells upon exposure to biocide, over and above the simple disappearance of T-OMP. Therefore, it is suggested that the observed tolerant development in biocide exposed cells, was not solely due to the loss of T-OMP. Investigations into Gram-negative bacteria isolated from contaminated industrial samples preserved with isothiazolone compounds exhibited higher MICs towards the preservative biocides than would normally be expected in the species of bacteria isolated and identified. However, there were no observable alterations in their OMP profiles.
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Molberg, Andreas Kilian [Verfasser], and Wüllen Christoph [Akademischer Betreuer] van. "Entwicklung einer OMP/MPI-Hybridparallelisierung für das tcmp2-Programm / Andreas Kilian Molberg. Betreuer: Christoph van Wüllen." Kaiserslautern : Technische Universität Kaiserslautern, 2016. http://d-nb.info/1082237132/34.

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Easton, Donna Meredith, and n/a. "Functional and Antigenic Characterisation of the Moraxella catarrhalis protein M35." University of Canberra. n/a, 2008. http://erl.canberra.edu.au./public/adt-AUC20081217.083105.

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This thesis reports the characterisation of a novel outer membrane protein (OMP) from M. catarrhalis, designated M35, with a molecular mass of 36.1 kDa. This protein is structurally homologous to classic Gram-negative porins, such as OMP C from E. coli and OMP K36 from K. pneumoniae, with a predicted structure of 8 surface loops connecting 16 antiparallel -sheets. Comparison of the DNA sequences of the M35 genes from 18 diverse clinical isolates showed that the gene was highly conserved (99.6-100 % of nucleotides) with only one isolate (ID78LN266) having base variations that resulted in amino acid substitutions. A single amino acid mutation in the 3rd external loop of M35 in isolate ID78LN266 significantly affected antibody recognition, indicating that loop 3 contains an immunodominant B-cell epitope. The reduction in antibody-binding to M35 from ID78LN266 was similar to that caused by complete removal of loop 3. Since loop 3 folds into the porin channel in the classic structure, the antibody specificity to loop 3 was hypothesised to be a potential mechanism for evasion of host immune responses targeted to M35, potentially explaining the high degree of conservation across isolates. A series of recombinant proteins were constructed to analyse the binding to M35 of antibodies specificity for loop 3 or the remainder of the protein. It was found that loop 3- specific antibodies were not able to bind to M35 on the surface of M. catarrhalis and that this corresponds both with a lack of ability to enhance opsonophagocytosis in vitro and bacterial clearance in vivo. Additionally, antibodies raised against a version of M35 lacking loop 3 and M35 from the variant isolate ID78LN266 were both no less effective than the full consensus M35 by both these measures. It therefore appears that while the majority of antibodies raised against M35 are specific for loop 3 these antibodies do not mediate anti-M. catarrhalis actions. Two deletion mutant strains of M. catarrhalis that do not contain the outer membrane protein M35 were created by insertional inactivation of the M35 gene. Growth comparisons between these mutant strains and their wildtype parent strains initially led to the hypothesis that M35 is necessary for efficient glutamic acid uptake by M. catarrhalis, however this hypothesis was later shown to be incorrect. Efficient uptake of glutamic acid seemed to be mediated by a novel 40 kDa protein that was up-regulated in the deletion mutant strains, presumably to compensate for the lack of M35. M35 was also found to be essential for in vivo survival of M. catarrhalis in the nasal cavities of mice, indicating that it is an essential functional protein for colonisation of the mucosal surface.
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Montigny, Jacky de. "URA5 et URA10, deux gènes codant pour deux isoenzymes à activité OMP pyrophosphorylase chez la levure Saccharomyces cervisiae structure, expression, régulation /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376166778.

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Montigny, Jacky de. "Ura5 et ura10, deux genes codant pour deux isoenzymes a activite omp pyrophosphorylase chez la levure saccharomyces cerevisiae : structure, expression et regulation." Strasbourg 1, 1988. http://www.theses.fr/1988STR13198.

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Books on the topic "OMP"

1

Giono, Jean. L' omp ch' al implantave arbuj. Acuilee: Clape culturâl, 1999.

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Institut izuchenii︠a︡ Izraili︠a︡ i Blizhnego Vostoka (Russia), ed. Analiticheskie zapiski: Armii︠a︡, VTS, OMP na Blizhnem Vostoke. Moskva: In-t izuchenii︠a︡ Izraili︠a︡ i Blizhnego Vostoka, 2004.

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Blair, W. R. Characterization of long term controlled release dynamics and identification of butyltin species released from OMP impregnated wood pilings. Gaithersburg, MD: U.S. Dept. of Commerce, National Bureau of Standards, 1987.

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Blair, W. R. Characterization of long term controlled release dynamics and identification of butyltin species released from OMP impregnated wood pilings. Gaithersburg, MD: U.S. Dept. of Commerce, National Bureau of Standards, 1987.

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Ellis, Oma. Oma. Hazelwood, Mo: Word Aflame Press, 1985.

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Evans, James R. (James Robert), 1950-, ed. OM3. Mason, OH: South-Western Cengage Learning, 2012.

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Organization, International Hydrographic, and World Meteorological Organization, eds. Joint IMO/IHO/WMO manual on maritime safety information =: Manuel conjoint OMI/OHI/OMM sur les renseignements sur la sécurité maritime = Manual conjunto OMI/OHI/OMM relativo a la información sobre seguridad marítima. 2nd ed. London: IMO, International Maritime Organization, 2010.

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Pärn, J. Oma tuba, oma luba: Must kuub. Tallinn: Eesti Päevaleht, 2009.

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Kakabaże, Sargis. Krcanisis omi. Tʻbilisi: "Mecʻniereba", 1991.

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Hint, Aadu. Oma saar. Tallinn: Eesti raamat, 1985.

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Book chapters on the topic "OMP"

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Davies, John K. "Flexible Scheduling and the OMP." In The Life Story of an Infrared Telescope, 203–8. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23579-0_16.

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Zhang, Yuxin, and Bo Yuan. "Supervised Online Dictionary Learning for Image Separation Using OMP." In Intelligent Computing Theories and Application, 557–68. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42294-7_50.

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Dziwoki, Grzegorz, Marcin Kucharczyk, and Jacek Izydorczyk. "Modified OMP Algorithm for Compressible Channel Impulse Response Estimation." In Computer Networks, 161–70. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92459-5_13.

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Plummer, Ashlee M., Dennis Gessmann, and Karen G. Fleming. "The Role of a Destabilized Membrane for OMP Insertion." In Methods in Molecular Biology, 57–65. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2871-2_5.

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Flouri, Tomáš, Costas S. Iliopoulos, Kunsoo Park, and Solon P. Pissis. "GapMis-OMP: Pairwise Short-Read Alignment on Multi-core Architectures." In IFIP Advances in Information and Communication Technology, 593–601. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33412-2_61.

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Büyükşar, Ayşe Betül, Habib Şenol, Serhat Erküçük, and Hakan Ali Çırpan. "Rapidly Varying Sparse Channel Tracking with Hybrid Kalman-OMP Algorithm." In Lecture Notes in Electrical Engineering, 289–98. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0408-8_25.

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Stamatakis, Alexandros, Michael Ott, and Thomas Ludwig. "RAxML-OMP: An Efficient Program for Phylogenetic Inference on SMPs." In Lecture Notes in Computer Science, 288–302. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11535294_25.

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Zhao, Jingcheng, Zongkai Yang, and Shaozhu Gu. "Compressed Sensing ISAR 3D Imaging Methods Based on OMP Algorithm." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 279–92. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22968-9_25.

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SantaLucia, John. "Physical Principles and Visual-OMP Software for Optimal PCR Design." In PCR Primer Design, 3–33. Totowa, NJ: Humana Press, 2007. http://dx.doi.org/10.1007/978-1-59745-528-2_1.

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Hu, Jurong, and Hanyu Zhou. "Parameter Estimation of MIMO Radar Based on the OMP Algorithm." In Wireless and Satellite Systems, 185–93. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69069-4_16.

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Conference papers on the topic "OMP"

1

Hwang, K., F. Hsieh, J. Liu, S. Mehrotra, C. M. Cheng, M. Dubois, D. K. Panda, et al. "OMP." In the 4th international conference. New York, New York, USA: ACM Press, 1990. http://dx.doi.org/10.1145/77726.255133.

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Hsieh, Sung-Hsien, Chun-Shien Lu, and Soo-Chang Pei. "Fast OMP: Reformulating OMP via iteratively refining ℓ2-norm solutions." In 2012 IEEE Statistical Signal Processing Workshop (SSP). IEEE, 2012. http://dx.doi.org/10.1109/ssp.2012.6319656.

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Stankovic, Srdjan, and Irena Orovic. "An ideal OMP based complex-time distribution." In 2013 2nd Mediterranean Conference on Embedded Computing (MECO). IEEE, 2013. http://dx.doi.org/10.1109/meco.2013.6601331.

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Teke, Oguzhan, Ali Cafer Gurbuz, and Orhan Arikan. "A new OMP technique for sparse recovery." In 2012 20th Signal Processing and Communications Applications Conference (SIU). IEEE, 2012. http://dx.doi.org/10.1109/siu.2012.6204606.

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Song, Rui, Cuiling Lan, Houqiang Li, Jizheng Xu, and Feng Wu. "OMP-based transform for inter coding in HEVC." In 2016 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2016. http://dx.doi.org/10.1109/iscas.2016.7527361.

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Cho, Eun-Young, Kyu Hou, MinHo Jeung, Seong-Yong Choi, Ho-Jin Choi, In-Young Ko, and ByoungHo Yae. "Design and Implementation of Customer-based OMP Architecture." In The 9th International Conference on Advanced Communication Technology. IEEE, 2007. http://dx.doi.org/10.1109/icact.2007.358417.

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Voicu Zainea, Ionela-Cristina, Silviu Ciochina, and Andrei Anghel. "A multiple choice OMP algorithm for DOA estimation." In 2020 12th International Conference on Electronics, Computers and Artificial Intelligence (ECAI). IEEE, 2020. http://dx.doi.org/10.1109/ecai50035.2020.9223132.

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Akyon, Fatih Cagatay, Gokhan Gok, and Yasar Kemal Alp. "Faster OMP computations by sensing matrix column reduction." In 2017 25th Signal Processing and Communications Applications Conference (SIU). IEEE, 2017. http://dx.doi.org/10.1109/siu.2017.7960585.

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Sun, Yi, Zhanwei Liu, and Qin Li. "Joint image fusion algorithm with OMP and wavelet." In 2010 Sixth International Conference on Natural Computation (ICNC). IEEE, 2010. http://dx.doi.org/10.1109/icnc.2010.5582377.

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Kang, Li, Jian-Jun Huang, and Jing-Xiong Huang. "Adaptive Subspace OMP for Infrared Small Target Image." In 2018 14th IEEE International Conference on Signal Processing (ICSP). IEEE, 2018. http://dx.doi.org/10.1109/icsp.2018.8652365.

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Reports on the topic "OMP"

1

Gross, T. F., and A. J. Williams. Bottom boundary layer measurements in OMP. Final report. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/666245.

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Wexler, Hannah M. Bacteroides Fragilis OMP A: Utility as a Live Vaccine Vector for Biodefense Agents. Fort Belvoir, VA: Defense Technical Information Center, January 2006. http://dx.doi.org/10.21236/ada448618.

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Wexler, Hannah M. Bacteroides Fragilis OMP A: Utility as a Live Vaccine Vector for Biodefense Agents. Fort Belvoir, VA: Defense Technical Information Center, January 2007. http://dx.doi.org/10.21236/ada467965.

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Blair, W. R., G. J. Olson, and F. E. Brinckman. Characterization of long term controlled release dynamics and identification of butyltin species released from OMP impregnated wood pilings. Gaithersburg, MD: National Bureau of Standards, 1987. http://dx.doi.org/10.6028/nbs.ir.87-3518.

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Hodson, Robert E. In Situ Activity and Functional Diversity of Microbes Linking Carbon and Nitrogen Cycles in Marine Ecosystems: BI-OMP Program. Office of Scientific and Technical Information (OSTI), May 2004. http://dx.doi.org/10.2172/1183489.

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Chipman, D. W., and T. Takahashi. Determination of ocean/atmosphere carbon dioxide flux within OMP survey area. Final technical progress report, June, 1 1993--May 31, 1995. Office of Scientific and Technical Information (OSTI), October 1995. http://dx.doi.org/10.2172/402381.

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Michael D. DeGrandpre. Time-series records of pCO{sub 2} and NO{sub 3} during the OMP Field Program: a final report for DOE Grant DE-FG03-96ER62224. Office of Scientific and Technical Information (OSTI), April 2000. http://dx.doi.org/10.2172/765122.

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Metz, C. OTP Extended Responses. RFC Editor, November 1997. http://dx.doi.org/10.17487/rfc2243.

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Rijk, Piet, Jakob Jager, and Kees van Duijvendijk. Veilig stijgen en landen op Schiphol : actualisatie vergoedingsregeling graanteelt om ganzen te weren. Wageningen: Wageningen Economic Research, 2017. http://dx.doi.org/10.18174/404842.

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Huston, G., and I. Leuca, eds. OMA-IETF Standardization Collaboration. RFC Editor, January 2005. http://dx.doi.org/10.17487/rfc3975.

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