Relevant bibliographies by topics / CTAG

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'CTAG'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "CTAG"

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Cebon, J. S., S. Svobodova, J. Browning, I. D. Davis, R. Scolyer, R. Murali, J. F. Thompson, S. Deb, A. Azad, and D. MacGregor. "Prognostic impact of cancer-testis antigen expression in primary cutaneous melanoma." Journal of Clinical Oncology 27, no. 15_suppl (May 20, 2009): 9004. http://dx.doi.org/10.1200/jco.2009.27.15_suppl.9004.

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9004 Background: Cancer-testis antigens (CTAg) are epigenetically regulated molecules expressed in many cancers including melanoma. Although functional studies are limited, they are often immunogenic making them attractive targets for immunotherapy. In normal tissues expression is restricted to germ cells and a small range of other tissues such as trophoblast. Previous studies have shown that CTAg expression increases with disease progression. We investigated whether the expression of three CTAgs, against which vaccines have been developed, may have prognostic significance in early stage melanoma. Methods: 233 AJCC Stage II melanomas were analyzed for expression of MAGE-A1, MAGE-A4 and NY-ESO-1 by immunohistochemistry. The relationship between CTAg expression, clinico-pathological features and relapse free survival (RFS) from initial diagnosis were correlated. Mutivariate analysis using known prognostic factors and CT Ag expression in the model were used to calculate hazard ratios. Results: All three CTAg were significantly co-expressed with each other (P=0.0001). RFS was reduced if tumors expressed any of these CTAgs (CTAg+ve). Median RFS for patients with CTAg+ve tumors was 45m versus 72m for those with CTAg-ve tumors (P=0.008, logrank test). Univariate analysis demonstrated that the impact of CTAg expression on RFS was comparable in magnitude to ulceration, Breslow thickness and mitotic rate, currently accepted prognostic factors. Multivariate analysis demonstrated CTAg expression, ulceration and thickness but not mitotic rate were independently associated with poorer RFS ( Table ). Conclusions: CTAg expression in cutaneous primary melanoma has impact on prognosis comparable to Breslow thickness ulceration and mitotic rate. Further study into their function and the impact of clinical targeting is warranted. [Table: see text] No significant financial relationships to disclose.
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Goodyear, Oliver C., Guy Pratt, Andrew McLarnon, Mark Cook, Karen Piper, and Paul Moss. "Differential pattern of CD4+ and CD8+ T-cell immunity to MAGE-A1/A2/A3 in patients with monoclonal gammopathy of undetermined significance (MGUS) and multiple myeloma." Blood 112, no. 8 (October 15, 2008): 3362–72. http://dx.doi.org/10.1182/blood-2008-04-149393.

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Abstract The factors that determine progression from monoclonal gammopathy of undetermined significance (MGUS) to multiple myeloma are unclear but may include the breakdown of immune surveillance. Cancer testis antigens (CTAgs) are expressed by the majority of myelomas and MGUS tumors and are a potential immune target. We have characterized CD4+ and CD8+ T-cell immune responses to MAGE-A1/A2/A3 in these patients. CD4+ T-cell immunity to MAGE proteins is stronger and more frequent in MGUS compared with myeloma with a predominantly CD45RA−CCR7− effector memory profile and cytotoxicity against MAGE-positive cell lines. In contrast CD8+ T-cell immune responses were present almost exclusively in patients with multiple myeloma, correlating with disease, with a CD45RA+CCR7− memory phenotype, localizing poorly to the bone marrow but were able to lyse myeloma cell lines in vitro. This suggests that the CD4+ CTAg-specific immune response may play a role in controlling tumor growth, whereas the efficacy of the CD8+ T-cell response appears to be limited in vivo. Despite this, patients with evidence of a CTAg-specific immune response had a 53% reduction in mortality over a median follow-up of 4 years. These findings have important implications for clinical approaches to CTAg-specific immunotherapy in patients with cancer.
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Goodyear, Oliver C., Karen Piper, Julie Arrazi, Naeem Khan, Premini Mahendra, Guy Pratt, and Paul Moss. "CD8+ T Cells Specific for Cancer-Testis Antigens Are Found in Many Patients with Multiple Myeloma and Correlate with Disease Burden." Blood 104, no. 11 (November 16, 2004): 2460. http://dx.doi.org/10.1182/blood.v104.11.2460.2460.

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Abstract Proteins from the family known as ‘cancer-testis antigens’ (CTAg) are expressed in some cases of multiple myeloma and subsets of acute myeloid leukaemia. CTAg can stimulate CD8+ T cell responses in patients with melanoma but there are no reports of CTAg-specific immune response in patients with haematological malignancy. Such information is critical to assess whether or not these antigens act as targets for tumour-specific immunity or if they could be used as targets for immunotherapy. We have used twelve peptide epitopes from a range of cancer-testis antigens which have been previously defined as epitopes for CD8+ T cells. These were used to screen for tumour-specific T-cells in blood of patients with multiple myeloma at various stages of their disease. The IFNγ cytokine secretion assay was used to detect functional responses and magnetic selection was employed to increase the sensitivity of detection. FACS analysis was used to quantitate the frequency of responding cells. 37 patients were screened with an age range of between 45 and 88 years. Blood samples were taken at monthly intervals and the percentage of CD8+ T cells responding to each peptide was calculated. 13 patients responded to 1 or more of the peptides with a range between 0.01% and 0.7% of the total CD8+ T cell pool. The frequency of the tumour-specific response fluctuated during treatment in individual patients. Analysis of the CTAg-specific immune response in relation to disease course revealed that the immune response was generally correlated with tumour burden as revealed by the paraprotein level. CTAg HLA-peptide tetramers incorporating peptides from LAGE-1 and MAGE-2 were able to directly visualize CTAg-reactive T cells in PBMC. CTAg-specific CD8+ T cells may have been primed and expanded by expression of CTAg on tumour cells or following ‘cross presentation’ through dendritic cells. In conclusion, T cells specific for cancer-testis antigens are present in the blood of a subset of patients with multiple myeloma. The clinical significance of this observation is currently being addressed.
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Bengtsson, Jenny, Claes von Wachenfeldt, Lena Winstedt, Per Nygaard, and Lars Hederstedt. "CtaG is required for formation of active cytochrome c oxidase in Bacillus subtilis." Microbiology 150, no. 2 (February 1, 2004): 415–25. http://dx.doi.org/10.1099/mic.0.26691-0.

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The Gram-positive bacterium Bacillus subtilis contains two respiratory oxidases of the haem-copper superfamily: cytochrome aa 3, which is a quinol oxidase, and cytochrome caa 3, which is a cytochrome c oxidase. Cytochrome c oxidase uniquely contains a di-copper centre, CuA. B. subtilis CtaG is a membrane protein encoded by the same gene cluster as that which encodes the subunits of cytochrome c oxidase. The role of B. subtilis CtaG and orthologous proteins present in many other Gram-positive bacteria has remained unexplored. The sequence of CtaG is unrelated to that of CtaG/Cox11p of proteobacteria and eukaryotic cells. This study shows that B. subtilis CtaG is essential for the formation of active cytochrome caa 3 but is not required for assembly of the core subunits I and II with haem in the membrane and it has no role in the synthesis of active cytochrome aa 3. B. subtilis YpmQ, a homologue to Sco1p of eukaryotic cells, is also a membrane-bound cytochrome c oxidase-specific assembly factor. Properties of CtaG- and YpmQ-deficient mutants were compared. Cells lacking YpmQ showed a low cytochrome c oxidase activity and this defect was suppressed by the supplementation of the growth medium with copper ions. It has previously been proposed that YpmQ/Sco1p is involved in synthesis of the CuA centre. The results of this study are consistent with this proposal but the exact role of YpmQ in assembly of cytochrome c oxidase remains to be elucidated.
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de Rooij, MAJ, DM van der Steen, D. Remst, A. Wouters, M. van der Meent, RS Hagedoorn, MGD Kester, PA van Veelen, FJH Falkenburg, and MHM Heemskerk. "P07.02 High-affinity TCRs specific for cancer testis antigens as a therapy for multiple myeloma and solid tumors." Journal for ImmunoTherapy of Cancer 8, Suppl 2 (October 2020): A49.1—A49. http://dx.doi.org/10.1136/jitc-2020-itoc7.96.

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BackgroundCancer Testis Antigens (CTAs) are highly expressed in multiple different tumor types, but silent in normal tissue, except the testis. This tumor-restricted expression pattern makes them an ideal target for adoptive T-cell therapy. However, the responsiveness in clinical setting may be hampered because high-affinity T cells against self-antigens presented in the context of self-HLA are deleted in the thymus by negative selection. In this study, we aim to identify high-affinity T cell receptors (TCRs) specific for CTAs from the allogeneic-HLA repertoire.Materials and MethodsIn this study, HLA class I binding peptides derived from different CTA genes were identified by HLA-peptide elution experiments and subsequent mass spectrometric analysis. From the identified peptides HLA tetramers were generated to isolate peptide specific CD8+ T cells from healthy allogeneic donors. Efficacy and safety of the TCRs was determined by various different stimulation assays. The most potent TCRs were sequenced, analyzed and transduced into peripheral CD8+ and CD4+ T cells to confirm CTA specific cytokine production and cytotoxicity.ResultsMAGE and CTAG peptides were eluted from multiple myelomas, EBV-transformed lymphoblastic cells, acute myeloid leukemia and ovarium carcinomas. We selected TCRs recognizing 3 different MAGE-A1 peptides in the context of HLA-A*02:01, HLA-A*03:01 and HLA-B*07:02. Furthermore, we selected TCRs specific for MAGE-A3 in the context of HLA-B*35:01 and HLA-A*01:01; TCRs specific for MAGE-A9 in the context of HLA-A*01:01 and TCRs specific for CTAG1 in the context of HLA-A*02:01. The selected T-cell clones demonstrated efficient recognition of MAGE-A1, MAGE-A3 or CTAG1 positive multiple myeloma and solid tumor cell lines without detectable cross-reactivity.ConclusionsWe identified multiple different TCRs from the allogeneic-HLA repertoire specific for CTA genes. These TCRs demonstrate efficient recognition and killing of CTA positive multiple myeloma and solid tumor cell lines and did not show any cross-reactivity. The peptides recognized by the TCRs are presented in different HLA alleles. Since, 71% of the world population contains one of these HLA-alleles, a large percentage suffering from a MAGE or CTAG positive tumor could potentially be treated with the identified TCRs by TCR-gene therapy.Disclosure InformationM.A.J. de Rooij: None. D.M. van der Steen: None. D. Remst: None. A. Wouters: None. M. van der Meent: None. R.S. Hagedoorn: None. M.G.D. Kester: None. P.A. van Veelen: None. F.J.H. Falkenburg: None. M.H.M. Heemskerk: None.
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Filatov, Felix P., and Alexander V. Shargunov. "Tetranucleotide Profile of Herpesvirus DNA." Journal of microbiology, epidemiology and immunobiology 97, no. 3 (June 25, 2020): 216–26. http://dx.doi.org/10.36233/0372-9311-2020-97-3-3.

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Introduction. Herpesvirus DNAs (about 90% of the total genomic sequences of the Herpesvirales family presented in GenBank) contain at a minimum concentration one of the two tetranucleotides, CTAG or TCGA. The “underrepresentation” of CTAG was previously observed only in the DNA of some bacteria and phages. The aim of the study was the further analysis of the formal characteristics of herpesvirus DNA, as well as their comparison with the density of the virus/host DNA microhomology and with the genomic macrostructure of herpes viruses.Materials and methods. Twenty strains and isolates of each of the five types of human herpes viruses (HHV1, HHV2, HHV3, HHV4, HHV5), 10 strains of HHV8, 5 strains of HHV6A, 4 strains of HHV6B and 3 strains of HHV7 were analyzed. GenBank tools were used to determine the frequency of tetranucleotides, and human DNA fragments with size matched herpesvirus DNA were used for comparison.Results. Minimum CTAG concentration in DNA of herpes viruses is mainly characteristic of two- and singlesegment genomes with direct or inverted terminal repeats (classes A,D,E), while the minimum TCGA density is characteristic mainly for DNA that is significantly less structured (classes B,C,F). By increasing CTAG density, human herpes viruses form a sequence close to the sequence of increasing the homology density of 20 nt with human DNA, which also correlates with the macrostructure of DNA. A parallel of this minimization with the DNA structure of herpes viruses or with their belonging to one or another subfamily — as well as the context of the “minimal” CpG (that is, TCGA) — is not noted in the literature. Although herpesvirus DNA is quite large (125– 295 Kb), some of them (for example, HHV4, HHV5 and HHV7 DNA) show noticeable deviations from the second DNA parity rule, and can thus serve as a component of the molecular signature.The Discussion suggests possible hypotheses for the origin of some of the observed phenomena.
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Torsello, Giovanni Federico, Angeliki Argyriou, Konstantinos Stavroulakis, Michel J. Bosiers, Martin Austermann, Giovanni B. Torsello, Manuel Alonso Pérez, et al. "One-Year Results From the SURPASS Observational Registry of the CTAG Stent-Graft With the Active Control System." Journal of Endovascular Therapy 27, no. 3 (March 20, 2020): 421–27. http://dx.doi.org/10.1177/1526602820913007.

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Purpose: To report the outcomes from the observational SURPASS registry, which was created to assess the performance of the Conformable TAG (CTAG) stent-graft with the Active Control System (ACS) in patients undergoing thoracic endovascular aortic repair (TEVAR) in a real-world setting. Materials and Methods: The SURPASS registry ( ClinicalTrials.gov; identifier NCT03286400) was an observational, prospective, single-arm, post-market, international study that enrolled patients undergoing TEVAR using the CTAG with ACS for both acute and chronic thoracic aortic disease between October 2017 and July 2018. The CTAG with ACS features 2-stage deployment of the stent-graft and an optional angulation mechanism that modifies only the proximal end of the stent-graft. During the observation period, 127 patients (mean age 67.1±12.1 years, range 27–86; 92 men) were enrolled and treated for an array of aortic pathologies, including chronic and acute lesions and 4 ruptured descending thoracic aneurysms. The primary outcome of this study was technical success; secondary outcomes were clinical success and major adverse events at 30 days and 12 months. The numbers of 2-stage device deployments and applications of the angulation mechanism were recorded, along with the reasons for use. Results: Technical success of the TEVAR was 97.6% owing to unintentional partial coverage of supra-aortic branches in 3 cases (the vessels were patent on imaging). The stent-graft was repositioned at its intermediate diameter in 79 patients (62.2%), and the angulation feature was applied in 64 cases (50.4%), mainly to improve proximal wall apposition and orthogonality in the aorta. The desired effect was achieved in 60 cases (93.8%). There was no device compression, bird-beak configuration, fracture, or graft occlusion. The 30-day and 12-month clinical success rates were 97.6% and 92.9%, respectively. There were 3 aorta-related deaths at 30 days and a further 3 at 12 months. Fatalities were due to a retrograde type A dissection (0.8%), paraplegia, bowel ischemia, sepsis in the setting of a mycotic aneurysm, aneurysm rupture post aortoesophageal fistula, and multiorgan dysfunction syndrome. Three endoleaks (2 type Ia and 1 type III) required reintervention. Conclusion: In the SURPASS registry, the use of the CTAG device with ACS showed promising outcomes despite the challenging pathologies. The new delivery system enables a controlled staged delivery with in situ adjustments during positioning, facilitating the treatment of complex aortic disease.
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Califano, Joseph V., Todd Kitten, Janina P. Lewis, Francis L. Macrina, Robert D. Fleischmann, Claire M. Fraser, Margaret J. Duncan, and Floyd E. Dewhirst. "Characterization of Porphyromonas gingivalis Insertion Sequence-Like Element ISPg5." Infection and Immunity 68, no. 9 (September 1, 2000): 5247–53. http://dx.doi.org/10.1128/iai.68.9.5247-5253.2000.

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ABSTRACT Porphyromonas gingivalis, a black-pigmented, gram-negative anaerobe, is found in periodontitis lesions, and its presence in subgingival plaque significantly increases the risk for periodontitis. In contrast to many bacterial pathogens, P. gingivalis strains display considerable variability, which is likely due to genetic exchange and intragenomic changes. To explore the latter possibility, we have studied the occurrence of insertion sequence (IS)-like elements in P. gingivalis W83 by utilizing a convenient and rapid method of capturing IS-like sequences and through analysis of the genome sequence of P. gingivalis strain W83. We adapted the method of Matsutani et al. (S. Matsutani, H. Ohtsubo, Y. Maeda, and E. Ohtsubo, J. Mol. Biol. 196:445–455, 1987) to isolate and clone rapidly annealing DNA sequences characteristic of repetitive regions within a genome. We show that in P. gingivalis strain W83, such sequences include (i) nucleotide sequence with homology to tRNA genes, (ii) a previously described IS element, and (iii) a novel IS-like element. Analysis of the P. gingivalis genome sequence for the distribution of the least used tetranucleotide, CTAG, identified regions in many of the initial 218 contigs which contained CTAG clusters. Examination of these CTAG clusters led to the discovery of 11 copies of the same novel IS-like element identified by the repeated sequence capture method of Matsutani et al. This new 1,512-bp IS-like element, designated ISPg5, has features of the IS3 family of IS elements. When a recombinant plasmid containing much of ISPg5 was used in Southern analysis of several P. gingivalis strains, including clinical isolates, diversity among strains was apparent. This suggests that ISPg5 and other IS elements may contribute to strain diversity and can be used for strain fingerprinting.
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Jordan, William D., Joshua Rovin, Sina Moainie, Joseph Bavaria, Richard Cambria, Mark Fillinger, William McMillan, and Jon S. Matsumura. "Results of a prospective multicenter trial of CTAG thoracic endograft." Journal of Vascular Surgery 61, no. 3 (March 2015): 589–95. http://dx.doi.org/10.1016/j.jvs.2014.09.033.

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Yamamoto, Eiji, Kazuya Suda, Madoka Hamada, Seiji Nogiwa, and Tokukoh Oki. "Tunable Laser Diode Having a Complementary Twin-Active-Guide (CTAG) Structure." Japanese Journal of Applied Physics 30, Part 2, No. 11A (November 1, 1991): L1884—L1886. http://dx.doi.org/10.1143/jjap.30.l1884.

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Dissertations / Theses on the topic "CTAG"

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Eriksson, Jens. "Evaluation of Hardware Test Methods for VLSI Systems." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-239.

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The increasing complexity and decreasing technology feature sizes of electronic designs has caused the challenge of testing to grow over the last decades. The purpose of this thesis was to evaluate different hardware test methods/approaches based on their applicability in a complex SoC design. Among the aspects that were investigated are test implementation effort, test efficiency and the performance penalties implicated by the test.

This report starts out by presenting a general introduction to the basics of hardware testing. It then moves on to review available standards and methodologies. In the end one of the more interesting methods is investigated through a case study. The method that was chosen for the case study has been implemented on a DSP, and is rather new and not as prolific as many of the standards discussed in the report. This type of method appears to show promising results when compared to more traditional ones.

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Yeary, Amber J. "Cetyltrimethylammonium Halide-Coated Electrodes for the Detection of Dopamine in the Presence of Interferents." Wright State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1323471405.

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Hedin, Niklas. "NMR studies of complex fluids and solids formed by surfactants." Doctoral thesis, KTH, Chemistry, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3033.

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NMR methods have been designed and employed in studying ofcomplex liquids and solids formed by surfactants. PGSE NMRexperiments are easily biased by convection; this artifact canbe avoided by changing the sample holder and by usingconvection-compensated pulse sequences. The temperaturedistribution within samples was controlled using thetemperature dependent order parameter for CBr2H2dissolved in a thermotropic nematic solvent.Electronic ringing that often spoils accurate NMR experimentsfor broad lines was removed by the using composite pulses andquadrupole echo sequences with appropriate phase cycles.

Field-dependent81Br and35Cl NMR relaxation studies in micellar solutions ofC16TAX surfactants showed that the structure ordynamics of the hydration shell is more influenced by thesurfactant cation for bromide than for chloride, in agreementwith their position in the Hoffmeister series. The presence ofa small but significant frequency-dependent relaxation showedthat the lateral self diffusion of the anions may be reduced ascompared to its bulk value in diluted solutions but only with afactor of 1.0 - 2.5. The ions are clearly not "bound" to thesurface. A field-dependent2H NMR relaxation study on the CTABr-α-d2and benzene-d6showed an initial one-dimensional micellargrowth followed by the appearance of microemulsion droplets onaddition of benzene. The local mobility of the benzene wasreduced when solubilized in small amounts, consistent with aninitial average location of benzene at the micellar interface.The surfactant diffusion coefficients fromconvection-compensated PGSE NMR experiments in the C12E8-D2O system showed monotonous growth of the micellesupon increasing temperature. Emulsion droplets in the C12E5-decane-D2O system where shown to coarsen according to theOstwald ripening theory after being brought out of equilibriumby a temperature drop. X-ray scattering and2H NMR line-shape and relaxation experimentssuggested that complex solids formed by a partly-sulfatedpolysaccharide and CnTAB exhibit regular ordering at both microscopicand mesoscopic length scales.

Keywords: CTAB, CTAC, C12E8, C12E5, decane, benzene, CBr2H2, polysaccharide, micelle, microemulsion, emulsion,Ostwald ripening, NMR,81Br,35Cl,2H, field- dependent spin relaxation, PGSE, selfdiffusion, convection, ringing, thermometer, generalized Blochequations, EXORCYCLE, quadrupole echo, SAXS, WAXS, cryo-TEM.

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Lee, SeungYong Albert 1975. "Object modeling applied to CTAS." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80098.

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Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
Includes bibliographical references (leaf 49).
by Seung Yong Albert Lee.
S.B.and M.Eng.
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Velcer, Tomáš. "Hyaluronanové hydrogely na bázi CTAT." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240558.

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This thesis studies the properties and behaviour of phase-separated hydrogels prepared by interaction of hyaluronan with oppositely charged surfactants. Three representatives of surfactants, namely cetyltrimethylammonium bromide, chloride and p-toluensulfonate (CTAB, CTAC, CTAT), were selected for comparison. Using the method of rheology, the fact that the system of Hya-CTAT forms the most rigid hydrogels has been proved. Higher molecular weight of hyaluronan has also direct influence on the volume and stiffness of the newly formed hydrogels. Preparation methods were compared as well. Mixing the stock solutions of entry components appeard to be the most suitable. Small-angle X-ray scattering was used for determination of shape and size of surfactant's micelles, concluding that it has no effect on the volume of formed gels. The results of this study indicate that given gels are to a certain extent competitive and incorporation of hyaluronan into their structure is desirable with respect to its biological activity. This offers a potential usage of these substances in the field of medical applications.
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Mäkivierikko, Aram. "CTG Carbon Calculator." Thesis, Uppsala University, Department of Information Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-101181.

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A carbon dioxide emission calculator for buildings created by the U.S.-based company CTG Energetics, Inc. and based on a Excel file has been converted to a ASP.NET / SQL Server web application. Carbon dioxide emissions are calculated using data given by the user (i.e. floor area, workdays per year) in combination with statistical data used in user-selectable presets (i.e. building type, climate zone, type of water-using fixtures). In most cases a custom value can be inserted instead of using a preset. Emissions attributable both directly and indirectly to the building such as building energy use, domestic water use, landscape/irrigation, transportation, materials used for the building/parking lot and the disposal of solid waste are calculated. The emissions can be compared with a national average and/or emissions from alternate scenarios created for the same building. The web application contains some upgrades and extra functionality that would not have been possible in Excel such as user handling.

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Macias-Balleza, Emma Rebeca. "Comportamiento reologico del sistema CTAT/AGUA/SAL." Université Joseph Fourier (Grenoble), 2002. http://www.theses.fr/2002GRE10018.

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Les solutions de surfactants s'agrégent pour former des microstructures qui dépendent de la concentration et de la température. On étudie un surfactant cationique, le Tosyl-Céthyltrimethylammonium (CTAT) en solution dans l'eau pour des concentrations inférieures à 11%. Dans une première partie, on étudie des concentrations faibles (0
Surfactant solutions are known to aggregate and to form microstructures depending upon concentration and temperature. Herein we study water/Cethyltrimethylammonium- Tosilate (CTAT) systems for concentrations under 11%w. CT AT is a cationic surfactant. In a first part we study low concentration systems (O
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Jahanmir, Farid. "Failure detection and repair of threads in CTAS." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/33134.

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Thesis (M. Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.
Includes bibliographical references (p. 73).
Reliable, error-free software is hard to come by, and this is especially true for newer, larger, or more complex programs. CTAS, an air traffic control tool, falls into this category, making it a good candidate for research on error compensation. Specifically, this thesis addresses the issue of thread crashes in one portion of CTAS. We reimplement the thread structure in question around a simpler problem, and develop a failure detector and an accompanying repair mechanism to monitor it. These add-on components provide the application with thread consistency by swiftly and transparently recovering from crashes, thereby yielding a more stable, self-sufficient, and generally more reliable operating environment.
by Farid Jahanmir.
M.Eng.and S.B.
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Santos, Zilvam Melo dos. "Estudos das intera??es de quitosana/CTAB/C12E8." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17775.

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Made available in DSpace on 2014-12-17T15:42:26Z (GMT). No. of bitstreams: 1 ZilvamMS_TESE_reduzido.pdf: 9108618 bytes, checksum: 613dad3fd1a359dce84e2af73b067934 (MD5) Previous issue date: 2013-02-22
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
Surfactant-polymer interactions are widely used when required rheological properties for specific applications, such as the production of fluids for oil exploration. Studies of the interactions of chitosan with cationic surfactants has attracted attention by being able to cause changes in rheological parameters of the systems making room for new applications. The commercial chitosan represents an interesting alternative to these systems, since it is obtained from partial deacetylation of chitin: the residues sites acetylated can then be used for the polymer-surfactant interactions. Alkyl ethoxylated surfactants can be used in this system, since these non-ionic surfactants can interact with hydrophobic sites of chitosan, modifying the rheology of solutions or emulsions resultants, which depends on the relaxation phenomenon occurring in these systems. In this work, first, inverse emulsions were prepared from chitosan solution as the dispersed phase and cyclohexane as the continuous phase were, using CTAB as a surfactant. The rheological analysis of these emulsions showed pronounced pseudoplastic behavior. This behavior was attributed to interaction of "loops" of chitosan chains. Creep tests were also performed and gave further support to these discussions. Subsequently, in order to obtain more information about the interaction of chitosan with non-ionic surfactants, solutions of chitosan were mixed with C12E8 and and carried out rheological analysis and dynamic light scattering. The systems showed marked pseudoplastic behavior, which became less evident when the concentration of surfactant was increased. Arrhenius and KWW equations were used to obtain parameters of the apparent activation energy and relaxation rate distribution, respectively, to which were connected to the content of surfactant and temperature used in this work
As intera??es tensoativo-pol?mero s?o amplamente usadas quando s?o necess?rias propriedades reol?gicas para aplica??es espec?ficas, como a produ??o de fluidos para explora??o do petr?leo. Estudos das intera??es de quitosana com tensoativos cati?nicos tem chamado aten??o por serem capazes de causar mudan?as nos par?metros reol?gicos dos sistemas abrindo espa?o para novas aplica??es. A quitosana comercial representa uma alternativa interessante para estes sistemas, uma vez que ela ? obtida a partir da desacetila??o parcial da quitina: os s?tos acetilados residuais podem, ent?o, ser usados para as intera??es pol?mero-tensoativo. Tensoativos alquil etoxilados podem ser utilizados neste sistema, pois estes tensoativos n?o i?nicos podem interagir com s?tios hidrof?bicos da quitosana, modificando a reologia de solu??es ou emuls?es resultantes, os quais dependem do fen?meno de relaxa??o ocorrendo nestes sistemas. Neste trabalho, primeiramente, foram preparadas emuls?es inversas de solu??o de quitosana como fase dispersa e cicloexano como fase cont?nua usando CTAB como tensoativo. A an?lise reol?gica destas emuls?es mostrou pronunciado comportamento pseudopl?stico. Esta pseudoplasticidade foi atribu?da ? intera??o por la?os loops de cadeias de quitosana. Ensaios de flu?ncia tamb?m foram executados e deram maior suporte a estas discuss?es. Em seguida, a fim de se obter maiores informa??es sobre as intera??es da quitosana com tensoativos n?o i?nicos, solu??es de quitosana foram misturadas com C12E8 e levadas ?s an?lises reol?gica e de espalhamento din?mico de luz. Os sistemas tiveram elevado comportamento pseudopl?stico, o qual se tornava menos evidente, quando o teor de tensoativo foi aumentado. Equa??es de Arrhenius e de KWW foram usadas para obter par?metros de energia de ativa??o aparente e de distribui??o da taxa de relaxa??o, respectivamente, aos quais foram relacionados em fun??o do teor de tensoativo e da temperatura, usados neste trabalho
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Arumuganainar, Ponnappan. "Automatic soft plaque detection from CTA." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26690.

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Thesis (M. S.)--Biomedical Engineering, Georgia Institute of Technology, 2009.
Committee Chair: Tannenbaum, Allen; Committee Member: Skrinjar, Oskar; Committee Member: Yezzi, Anthony. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Books on the topic "CTAG"

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Nguynen, Nhuat Thăng. Ctam nang nha khoa. Houston, Tx. (2809 Main, Houston 77002): Nguyen Thang, 1988.

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Neuman, Frank. CTAS data analysis program. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1994.

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Trsan, Đại Sỹ. Ctam Khê di huan. Paris: Nam Á, 1991.

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Liu, Wuyun. Ctam nang tránh thai. Đà Nmang: Nhà xurat bkan Đà Nmang, 2007.

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Authority, Chicago Transit. CTA culture buses. Chicago, Ill: Chicago Transit Authority Public Affairs Dept., 1987.

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Anderson, Arthur R. CTA technical bulletins. Chicago: Preset/Prestressed Concrete Institute, 2000.

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Smuclovisky, Claudio. Coronary Artery CTA. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-0431-7.

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Smuclovisky, Claudio, ed. Coronary Artery CTA. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-66988-5.

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Steer, Philip J. Fetal CTG monitoring. Redditch: Surgicraft Ltd., 1987.

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Christine, Henderson, ed. CTG made easy. Edinburgh: Churchill Livingstone, 1992.

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Book chapters on the topic "CTAG"

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Guder, W. G. "CTAD-Röhrchen." In Springer Reference Medizin, 637. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-48986-4_798.

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Guder, W. G. "CTAD-Röhrchen." In Lexikon der Medizinischen Laboratoriumsdiagnostik, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49054-9_798-1.

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Gooch, Jan W. "CTA." In Encyclopedic Dictionary of Polymers, 185. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3165.

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Cayen, Mitchell N. "Exploratory INDs/CTAs." In Early Drug Development, 465–87. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470613191.ch11.

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"CTAG." In Encyclopedia of Cancer, 1242. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-46875-3_100630.

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Tan, Tze-Woei, and Wayne W. Zhang. "Complications of TAG and Conformable TAG (CTAG) Thoracic Endoprosthesis." In Complications in Endovascular Surgery, 131–36. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-323-55448-0.00020-6.

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Herron, R. Samuel, and Hun-Way Hwang. "Comprehensive profiling of mRNA polyadenylation in specific cell types in vivo by cTag-PAPERCLIP." In Methods in Enzymology, 165–84. Elsevier, 2021. http://dx.doi.org/10.1016/bs.mie.2021.04.003.

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"CTAG1." In Encyclopedia of Cancer, 1242. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-46875-3_100631.

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"CTTG." In Encyclopedia of Signaling Molecules, 1241. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67199-4_100870.

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"CTAT Preface." In Studies in the Text of the Old Testament, 591–606. Penn State University Press, 2012. http://dx.doi.org/10.5325/j.ctv1bxgx0v.19.

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Conference papers on the topic "CTAG"

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Hossain, Mohammad Asiful, Nabeel Mohammed, and Rafi Md Najmus Sadat. "Chord to Triangular Arm Angle (CTAA), a more accurate version of the CTAR corner detector." In 2015 IEEE International Conference on Signal and Image Processing Applications (ICSIPA). IEEE, 2015. http://dx.doi.org/10.1109/icsipa.2015.7412190.

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Azmiyawati, Choiril, F. A. Yamin, A. Darmawan, and L. Suyati. "Synthesis of magnetite@SILICA-CTA in a cetyl trimethyl ammonium bromide (CTAB) concentration variations for fenol adsorption." In THE 14TH JOINT CONFERENCE ON CHEMISTRY 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0005717.

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Dubey, P., V. K. Sharma, S. Mitra, G. Verma, P. A. Hassan, M. Johnson, and R. Mukhopadhyay. "Dynamics of CTAB in hybrid CTAB-hydroxyapatite system." In DAE SOLID STATE PHYSICS SYMPOSIUM 2015. Author(s), 2016. http://dx.doi.org/10.1063/1.4947653.

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Bortins, Richard, C. Hunter, and Joseph Miller. "CTAS tracking filter." In Guidance, Navigation, and Control Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-3722.

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Calegari, Roberta, Mirco Musolesi, Franco Raimondi, and Cecilia Mascolo. "CTG." In the the 6th joint meeting of the European software engineering conference and the ACM SIGSOFT symposium. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1287624.1287684.

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Ebrahimi, Yaghoob, and Anthony Warren. "CTAS performance model validation." In AIAA Guidance, Navigation, and Control Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2000. http://dx.doi.org/10.2514/6.2000-4477.

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Park, Nahee, and VERITAS Collaboration. "VERITAS observation of CTA1." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 5th International Meeting on High Energy Gamma-Ray Astronomy. AIP, 2012. http://dx.doi.org/10.1063/1.4772270.

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Wang, Lu, Jia-Qi Bao, Tong-Zhou Wei, Wei-Hua Cai, and Feng-Chen Li. "Study on the Characteristics of Turbulent Flow of Viscoelastic Fluid Through a Planar Sudden Expansion by PIV System." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-25079.

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The influences of drag-reducing surfactant additives on the characteristics of a turbulent flow over a planar sudden expansion with expansion ration R = D/d = 3 and aspect ratio A = w/h = 30 were experimentally investigated by a 2D-2C (two dimensional-two component) particle image velocimetry (PIV) system. The 2D-2C velocity fields in the streamwise-wall-normal planes (x-y planes) at three spanwise locations are measured for the flows of water and 50ppm aqueous solution of CTAC/NaSal (CTAC: cetyltrimethyl ammonium chloride; NaSal: sodium salicylate) under the Reynolds number of 1.85 × 104. From the streamline in the x-y plane, it is observed that the reattachment lengths of the vortices in CTAC/NaSal solution are longer. Then the mean streamwise velocity fields and the apparent flow rate at three spanwise locations show that the flow fields in the other two x-y planes are practically symmetrical about the x-y centreplane in CTAC/NaSal solution, as compared with that in water flow. Finally, it is perceived that the Reynolds shear stress for three spanwise locations in CTAC/NaSal solution are obviously decreased.
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Taninaga, Edite Kazue, Fernanda Sucasas Frison, Maria Cristina Stolf, Rafael José dos Santos, Maria Helena Postal Pavan, Mariana Agustinho Rodrigues, Marianna Vogt, and Rose Clélia Grion Trevisane. "Centro de Testagem e Aconselhamento (CTA) no campus da Universidade Estadual de Campinas: perfil dos participantes nos CTAs volantes no ano de 2018." In Simpósio de Profissionais da UNICAMP. Universidade Estadual de Campinas, 2019. http://dx.doi.org/10.20396/sinteses.v0i7.11265.

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Alper, Joshua, Aaron Schmidt, and Kimberly Hamad-Schifferli. "Thermal Transport From Gold Nanorod to Solvent, an Investigation of Ligand Effects by Ultrafast Laser Spectroscopy." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67266.

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To facilitate analysis of nanoscale heat transfer in nanoparticle systems the thermal properties of ligand layers must be understood. To this end, we use an optical pump-probe technique to study the thermal transport across ligands on gold nanorods and into the solvent. We find that varying properties of the ligand can have large impacts on the thermal decay of a nanorod after exposure to a laser pulse. By raising the concentration of free CTAB from 1 mM and 10 mM in solutions, the CTAB layer’s effective thermal interface conductance increases three fold. The transition occurs near the CTAB critical micelle concentration. Similar results are found for other ligand layers.
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Reports on the topic "CTAG"

1

Sikora, Joel. Final CTAP Report. Office of Scientific and Technical Information (OSTI), December 2020. http://dx.doi.org/10.2172/1813654.

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Thomas, Shari R. Review of Personnel Susceptibility to Lasers: Simulation in SIMNET-D for CTAS-2.0. Fort Belvoir, VA: Defense Technical Information Center, January 1995. http://dx.doi.org/10.21236/ada293827.

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Mackay, Raymond A., H. D. Durst, Frederick R. Longo, and Barry L. Knier. The Catalytic Hydrolysis of p-Nitrophenyldiphenyl Phosphate in a CTAB (Cetyltrimethylammonium Bromide) Microemulsion. Fort Belvoir, VA: Defense Technical Information Center, June 1989. http://dx.doi.org/10.21236/ada209392.

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Sikora, Joel, and Jessica Jungwirth. Final CTAP Report: Technical Assistance to Pandemic Response Team with Pueblo of Zuni. Office of Scientific and Technical Information (OSTI), December 2020. http://dx.doi.org/10.2172/1815354.

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Farrand, Timothy G. Initial Evaluation of the CTA International 4O-mm Cased Telescoped Weapon System. Fort Belvoir, VA: Defense Technical Information Center, August 2000. http://dx.doi.org/10.21236/ada381396.

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Sriraj, P. S. Ranking Northeast Illinois New Starts Transit Potential Expansion for Metra and CTA. Tampa, FL: University of South Florida, July 2017. http://dx.doi.org/10.5038/cutr-nctr-rr-2017-02.

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Dybczynski, R., H. Polkowska-Motrenko, Z. Samczynski, and Z. Szopa. Preparation and certification of the new polish CRM: fine fly ash (CTA-FFA-1). Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1993. http://dx.doi.org/10.4095/193241.

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Sikora, Joel. Final CTAP Report National Technology & Engineering Solutions of Sandia, LLC Out of State Visitor Mobility Analysis with New Mexico Department of Health. Office of Scientific and Technical Information (OSTI), April 2021. http://dx.doi.org/10.2172/1813664.

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