Academic literature on the topic 'TFI'

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Journal articles on the topic "TFI"

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Alsouyid, Hajer Mohammed, Nuria Ali Elamri, Haifa Mohamed Duzan, Abdunabi Mohamed Abughania, and Ammar Khalifa Aslougi. "Molecular characterization of lternaria solani isolates on tomato plant Lycopersicum esculentum Mill." Journal of Misurata University for Agricultural Sciences, no. 01 (October 6, 2019): 379–400. http://dx.doi.org/10.36602/jmuas.2019.v01.01.29.

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Early blight disease causes severe damage to the foliar part of solanaceous crops including tomato. Fifteen isolates (12 from tomato, 2 from potato, 1 from pepper) were collected from different sources in Tripoli. Field and laboratory studies were conducted to determine cultural behaviour on PDA medium, morphological, pathogenic and molecular variation between isolates tested. Colonies of isolates revealed variation in their cultural behaviour on PDA medium ranging from cottony to appressed growth, with colour ranging between light to dark olivaceous. The pigments released by the isolates changed the medium colour to grey or brown. Morphological studies of the fungal isolates exhibited short conidiophores bearing a single or chains of paired conidia. This study revealed a significant variation in conidial size for the isolates tested ranging from 23.45 to 46.90 x 7.70 to 14.00 µm. Pathogenicity testes on fruits, plants, and detached leaves of tomato indicated a high significant variation between isolates tested ranging from highly to moderate or weak pathogenic. Genetic diversity of A. solani isolates using RAPD-PCR with oligonuclotide primers revealed significant differences in the appearance of polymorphic and monomorphic banding patterns. Three primers (OPA-07, OPA-09, OPJ-09) out of ten were able to determine the genetic fingerprints of tested isolates. Cluster analysis of RAPD-PCR products showed that primer OPA-07 was able to classify the isolates into five groups: group A (TF4,TF7, TL1, TL3), group B (TF1,TF3, TF8, PEF), group C (TF5, TF6, TF9, POL1, POL2), whereas the remaining two isolates TL2 and TF2 were unique in their patterns and were designated as group U1 and U2 respectively. Primer OPA-09 revealed four distinct genetic groups designated as: group A (TF4, TF6, TF7, TF8, TL2), group B (POL1, TL3, TF3), group C (TF5, POL2) and group D (TL1, TF1, TF2, TF9, PEF). However primer OPJ-09 was able to split the isolates tested into four distinct clusters: group A (TF1, TF7, TL3, PEF), group B (TF3, TF8, POL2), group C (TF2, TF6, TF9, TL2) and group D (TF4, TF5). The results of RAPD-PCR demonstrate existence of considerable variation in molecular characteristics of A. solan iisolates. Accordingly these isolates were classified into different groups and unique patterns with no obvious association between the pattern of clustering of the isolates and their host of origin, morphological characteristics and pathogenicity.
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Coulom, Fierre, and Fernand Vicari. "TFI." Acta Endoscopica 35, no. 3 (June 2005): N10. http://dx.doi.org/10.1007/bf03003316.

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García Rosales, Liliana, Virginia Moreno Juvinao, and Jaider Andrés Pushaina González. "Severidad de la fluorosis dental en siete instituciones de salud de Barranquilla (Colombia) durante el período enero de 2013 - junio de 2014." Acta Odontológica Colombiana 9, no. 2 (July 1, 2019): 36–46. http://dx.doi.org/10.15446/aoc.v9n2.76793.

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Objetivo: el presente estudio se propone identificar la severidad de la fluorosis en siete instituciones de salud de Barranquilla (Colombia) en el período comprendido entre enero de 2013 y junio de 2014. Métodos: se realizó un estudio de tipo descriptivo de corte transversal cuantitativo, en una población estimada de 350 niños y una muestra a conveniencia de 89, en edades entre 7 y 15 años, que cumplieron con los criterios de inclusión establecidos aplicando Índice de Thylstrup y Fejerskov (TFI). Resultados: el grado de severidad que más predominó en la arcada superior fue TF2, con un porcentaje de 53.93%, correspondiente al primer molar (16); seguido de TF3, con 33.0% en el incisivo lateral (12). A su vez, en la arcada inferior, el grado de severidad de mayor predominio fue TF2, con 48.31% en los primeros molares derecho e izquierdo (46 y 36); seguido de TF1, con 47.19% en el incisivo central (31). Conclusión: la severidad TF2 fue la más predominante en ambas arcadas en incisivos y primeros molares, lo que corresponde a un nivel leve.
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van Dooremalen, Wies T. M., Stephan P. Verweij, Janneke E. den Hartog, Carole Kebbi-Beghdadi, Sander Ouburg, Gilbert Greub, Servaas A. Morré, and Anne Ammerdorffer. "Screening of Chlamydia trachomatis and Waddlia chondrophila Antibodies in Women with Tubal Factor Infertility." Microorganisms 8, no. 6 (June 17, 2020): 918. http://dx.doi.org/10.3390/microorganisms8060918.

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Waddlia chondrophila is an emerging intracellular pathogen belonging to the order of Chlamydiales, and was previously associated with adverse pregnancy outcomes, as well as tubal factor infertility (TFI). In this study, we investigate the link between both W. chondrophila and Chlamydia trachomatis IgG seropositivity and TFI. Antibodies against both bacteria were measured in 890 serum samples of women visiting a fertility clinic. After a hysterosalpingography and/or laparoscopy, they were classified as either TFI-negative (TFI−) or TFI-positive (TFI+). The total seroprevalence was 13.4% for C. trachomatis and 38.8% for W. chondrophila. C. trachomatis antibodies were present significantly more often in the TFI+ group than in the TFI− group, while for W. chondrophila no difference could be observed. In conclusion, our study confirms the association between C. trachomatis seropositivity and TFI, but no association was found between W. chondrophila seropositivity and TFI. The high percentage of W. chondrophila seropositivity in all women attending a fertility clinic does, however, demonstrate the need for further research on this Chlamydia-like bacterium and its possible role in infertility.
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Saldarriaga, Alexandra, Diego Rojas-Gualdrón, Manuel Restrepo, Lourdes Santos-Pinto, and Fabiano Jeremias. "Dental fluorosis severity in children 8-12 years old and associated factors." Acta Odontológica Latinoamericana 34, no. 2 (September 2021): 156–65. http://dx.doi.org/10.54589/aol.34/2/156.

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The aim of this study was to determine the frequency and severity of dental fluorosis (DF) and the association between severity and risk factors. In a cross-sectional study, 8- to 12-year-old children, born in a Colombian district, were evaluated according to the Thylstrup and Fejerskov Index (TFI) by two calibrated examiners. Molar Incisor Hypomineralization (MIH) and dental caries (DC) were also evaluated. Ordinal logistic regression was applied p<0.05). Risk factors and lifestyle factors were collected using a questionnaire answered by parents. DF was detected in 76 (98.7%) of the children (average of 18.4 ±1.81 permanent teeth affected). Grade TF2 was the most frequently observed (34.8%); TF5 was observed in all age groups; TF6- TF7 were observed in 12-year-olds. No association was found between DF severity and DC (Odds Ratio (OR)=1.35; 95%CI: 0.56-3.26) or MIH (OR=1.39; 95%CI: 0.43-4.46). DF severity was significantly associated with use of an indoor wood stove for food preparation (OR = 9.34; 95%CI: 1.11-78.57) and use of a pea-sized volume of toothpaste (OR = 27.42; 95%CI: 1.57-477.36). Prevalence of DC was 38.1% and prevalence of MIH was 14.4%. In this population, the frequency of DF was high and severity was associated with use of an indoor wood stove for food preparation and toothpaste amount used during childhood.
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Kobayashi, S., H. Shibata, I. Kurihara, K. Yokota, N. Suda, I. Saito, and T. Saruta. "Ubc9 interacts with chicken ovalbumin upstream promoter-transcription factor I and represses receptor-dependent transcription." Journal of Molecular Endocrinology 32, no. 1 (February 1, 2004): 69–86. http://dx.doi.org/10.1677/jme.0.0320069.

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Chicken ovalbumin upstream promoter-transcription factors (COUP-TFs) are orphan receptors involved in regulation of neurogenesis and organogenesis. COUP-TF family members are generally considered to be transcriptional repressors and several mechanisms have been proposed to underlie this activity. To explore novel transcriptional coregulators for COUP-TFs, we used the COUP-TFI as bait in a yeast two-hybrid screen of an adrenocortical adenoma cDNA library. We have identified Ubc9, a class E2 conjugating enzyme of small ubiquitin-related modifier (SUMO)-1 as a COUP-TFI corepressor. Ubc9 interacts with COUP-TFI in yeast and in glutathione S-transferase pulldown and coimmunoprecipitation assays. Fluorescence imaging studies show that both Ubc9 and COUP-TFI are colocalized in the nuclei of transfected COS-1 cells. The C-terminal region of Ubc9 encoding amino acids 59-158 interacts with the C-terminus of COUP-TFI encoding amino acids 383-403, in which transcriptional repression domains are located. Mammalian one-hybrid assays utilizing a variety of Ubc9 fragments fused to Gal4 DNA-binding domain show that a Ubc9 fragment encoding amino acids 1-89 contains autonomous transferrable repression domain. Transfection of Ubc9 into COS-1 cells markedly enhances transcriptional repression by Gal4 DNA-binding domain-fused to COUP-TFI(155-423), but not by Gal4-COUP-TFI(155-388) which lacks a repressor domain. Coexpression of a C-terminal deletion mutant of Ubc9(1-58), which fails to interact with COUP-TFI, but retains a transcriptional repression domain, has no effect on Gal4-COUP-TFI-mediated repression activity. These findings indicate that interaction of Ubc9 with COUP-TFI is crucial for the corepressor function of Ubc9. Overexpression of Ubc9 similarly enhances COUP-TFI-dependent repression of the promoter activity of the bovine CYP17 gene encoding steroid 17alpha-hydroxylase. In addition, the C93S mutant of Ubc9, which abrogates SUMO-1 conjugation activity, continues to function as a COUP-TFI corepressor. Our studies indicate that Ubc9 functions as a novel COUP-TFI corepressor, the function of which is distinct from its SUMO-1 conjugating enzyme activity.
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Um, Jung Hwan, Soon Heum Kim, and Dong In Jo. "A Case of Tumor of Follicular Infundibulum in Parietal Scalp." Korean Society for Head and Neck Oncology 37, no. 2 (November 30, 2021): 57–60. http://dx.doi.org/10.21593/kjhno/2021.37.2.57.

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Tumor of follicular infundibulum (TFI) is a rare benign cutaneous appendage tumor that does not have characteristic clinical features. It is mainly present in the head, neck, and trunk as a solitary lesion. In particular, TFI typically manifests as a plate-like proliferation with multiple thin epidermal connections comprise of monomorphic cells. TFI do not represent cutaneous characteristics, but have clinical significance because TFI is associated with basal cell carcinoma and Cowden's syndrome. We report a case of TFI in parietal scalp with a review of literatures.
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Faheem, Ahmed F., Hussain U. Bahia, and Hossein Ajideh. "Estimating Results of a Proposed Simple Performance Test for Hot-Mix Asphalt from Superpave Gyratory Compactor Results." Transportation Research Record: Journal of the Transportation Research Board 1929, no. 1 (January 2005): 104–13. http://dx.doi.org/10.1177/0361198105192900113.

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This study intended to use the Superpave® gyratory compactor (SGC) as a basis for estimating the stability of asphalt mixtures as a surrogate for proposed method for the simple performance test. Several asphalt mixtures were produced with varying aggregate sources, asphalt contents, and gradations. Every mixture was compacted with the SGC and evaluated with the repeated compression test procedure for rutting measurements recommended by NCHRP Project 9–19 and the AASHTO 2002 pavement design manual to evaluate whether the results from the SGC can be related to the rutting of mixtures. Densification curves produced by the SGC were used to determine the volumetric properties besides the calculation of the traffic densification index (TDI), which represents the densification experienced by traffic loading during pavement service life. The traffic force index (TFI) was also calculated with a special accessory added to the SGC during compaction (the pressure distributor analyzer). The TFI represents the work done by the traffic to densify the mixture. Results from the mixture rutting tests were used to estimate the flow number (FN). The FN, an important mixture property, is shown to have a strong correlation to the TFI. The TFI was also found to be strongly correlated with the TDI and gives an opportunity to estimate the mixture resistance to compaction forces with the use of its volumetric behavior. The main finding of the study is that the SGC appears to give information that can be used to characterize the stability of the mixtures. Such information could be used as an initial screening criterion to select mixtures for various traffic levels.
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Lin, Chia-Hui, Chieh-Yu Liu, and Jiin-Ru Rong. "Psychometric Properties of the Taiwanese Version of the Tilburg Frailty Indicator for Community-Dwelling Older Adults." Healthcare 9, no. 9 (September 10, 2021): 1193. http://dx.doi.org/10.3390/healthcare9091193.

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Screening the frailty level of older adults is essential to avoid morbidity, prevent falls and disability, and maintain quality of life. The Tilburg Frailty Indicator (TFI) is a self-report instrument developed to assess frailty for community-dwelling older adults. The aim of this study was to explore the psychometric properties of the Taiwanese version of TFI (TFI-T). The sample consisted of 210 elderly participants living in the community. The scale was implemented to conduct a confirmatory factor analysis (CFA) test for validity. The models were evaluated through sensitivity, specificity, area under the curve, and receiving operating characteristic (ROC) curve. CFA was performed to evaluate construct validity, and the TFI-T has a goodness of fit with the three-factor structure of the TFI. Totally, the 15 items of TFI-T have acceptable internal consistency (Cronbach’s alpha = 0.78), and test–retest reliability (r = 0.88, p < 0.001). The criterion-related validity was examined, the TFI-T correlation with the Kihon Checklist (KCL) score (r = 0.74; p < 0.001). The cutoff of 5.5 based on the Youden index was considered optimal. The area under the ROC curve analysis indicated that the TFI-T has good accuracy in frailty screening. The TFI-T exhibits good reliability and validity and can be used as a sensitive and accurate instrument, which is highly applicable to screen frailty in Taiwan among older adults.
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HARADA, Ken. "Twin-Foucault Imaging (TFI)." Journal of the Vacuum Society of Japan 57, no. 9 (2014): 348–54. http://dx.doi.org/10.3131/jvsj2.57.348.

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Dissertations / Theses on the topic "TFI"

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Parisot, Joséphine. "COUP-TFI est nécessaire dans la différentiation et la migration des granules du gyrus denté." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4089/document.

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L’hippocampe est un composant majeur du cerveau des mammifères et joue d'importants rôles dans la mémoire, l’apprentissage et la navigation spatiale. Il comprend deux régions distinctes: les champs ammoniens et le gyrus denté (DG). Pendant ma thèse, je me suis intéressée au facteur de transcription COUP- TFI, jouant des rôles clefs dans la spécification et migration neocorticale. Peu de choses sont connues sur son rôle dans l’hippocampe. COUP-TFI y est exprimé en gradient dans les progéniteurs et dans les neurones différentiés, et est fortement localisé dans le neuroépithelium du DG. Le but de ma thèse était de déchiffrer le rôle de COUP-TFI dans le développement de l’hippocampe, au cours de la différentiation et migration des granules, population principale du DG. À l’aide de lignées de souris dans lesquelles COUP-TFI est soit inactivé dans les progéniteurs soit seulement dans les cellules différentiées, j’ai montré que l’absence de COUP-TFI induit différents degrés d’altérations. En l’absence de COUPTFI dans les progéniteurs, les précurseurs du DG se différentient précocement, ont une prolifération réduite et leur migration est altérée. De plus, les afférences du cortex n’innervent pas le DG septal et l’apoptose y est accrue. Le DG en résulte fortement réduit chez adulte, particulièrement dans la région septal. La perte de COUP-TFI dans les cellules différentiées n’entraine que des anomalies mineures et transitoires. Ainsi, mes résultats indiquent que COUP-TFI régule la différentiation et migration des granules, particulièrement au niveau des progéniteurs, et propose COUP-TFI comme un nouveau facteur requis dans le développement et le fonctionnement de l’hippocampe
The hippocampus is a major component of the mammalian brain and plays important roles in memory, learning, and spatial navigation. It comprises two distinct regions: the hippocampus proper and the dentate gyrus (DG). During my thesis, I have challenged the role of the strong transcriptional regulator COUP-TFI, playing key roles during neocortical specification and migration. Yet, little is known about its involvement in the hippocampus. COUP-TFI is expressed in a gradient fashion in both proliferating progenitors and differentiated neurons in the hippocampus, and is highly localized in the DG neuroepithelium. The aim of my thesis was thus to decipher the role of COUP-TFI in the developing hippocampus, and specifically in cell differentiation and migration of granule cells, the major DG cell population. Using two mutant mouse lines, in which COUP-TFI is either ablated in progenitors, or solely in post-mitotic cells, I have shown that absence of COUP-TFI induces different degrees of growth impairments. In the absence of COUP-TFI in progenitors, DG precursors tend to differentiate precociously, exhibit reduced proliferation and granule cells migration is impaired. Postnatally, inputs from the cortex fail to innervate the septal DG and apoptosis is abnormally increased. The DG results strongly reduced in adult, particularly in the septal region. Loss of COUP-TFI in differentiated cells leads only to minor and transient defects. Together, my results indicate that COUP-TFI is involved in regulating granule cell differentiation and migration predominantly in progenitors, and propose COUPTFI as a novel transcriptional regulator required in hippocampal development and functions
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Kim, Jerin. "Predictive and Concurrent Validity of the Tiered Fidelity Inventory (TFI)." Thesis, University of Oregon, 2019. http://hdl.handle.net/1794/24563.

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This study evaluated the predictive and concurrent validity of the Tiered Fidelity Inventory (TFI). Structural equation modeling was applied to test the associations between the TFI and student outcomes. First, a total of 1,691 schools with TFI Tier 1 in 2016-17 and school-wide discipline outcomes in 2015-16 and 2016-17 were targeted, finding a negative association between TFI Tier 1 and differences between African American and non-African American students in major office discipline referrals (ODR) per 100 students per day in elementary schools. A sensitivity test with schools with TFI Tier 1, 2, and 3 was conducted, showing a negative association between TFI Tier 1 and the square root of major ODR rates in elementary schools. Second, TFI Tier 1 was positively related to the proportions of students meeting or exceeding state-wide standards in reading from 1,361 schools with TFI Tier 1 and academic outcomes in 2014-15 and 2015-16. Also, the association between TFI Tier 1 and academic outcomes was found to be stronger when schools implemented SWPBIS for 6 or more years. A sensitivity test with schools with TFI Tier 1, 2, and 3 indicated positive associations between TFI Tier 1 and the proportions of students meeting or exceeding state-wide standards in both subjects. Third, TFI Tier2 was positively associated with the logit of proportions of students with CICO daily points from 570 schools with TFI Tier 2 in 2016-17 and CICO outcomes in 2015-16 and 2016-17. Fourth, correlations between the Evaluation subscale of TFI Tier 1 or 2 and relevant measures in 2016-17 were tested from 2,379 schools. TFI Tier 1 Evaluation was positively correlated with counts of TFI administrations, number of fidelity measures, and counts of viewing SWIS Reports. These correlations were significant except for ODRs by staff. Also, TFI Tier 2 Evaluation was significantly positively correlated with years of SWPBIS implementation, years of CICO-SWIS implementation, and counts of viewing CICO Reports except student period, and negatively with counts of viewing student single period. These findings were discussed by comparing them with previous research findings, suggesting implications for future research and practice, and addressing research limitations.
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Pickens, Brandy S. "THE ROLE OF COUP-TFI DURING RETINOIC ACID INDUCED ENDODERMAL DIFFERENTIATION OF P19 CELLS." Diss., Temple University Libraries, 2012. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/196883.

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Biochemistry
Ph.D.
ABSTRACT Retinoic acid (RA) is a positive regulator of P19 EC cell differentiation. Pre-B cell leukemia transcription factors (PBXs) act in conjunction with homeobox genes during cell differentiation. PBX mRNA and protein levels are increased rapidly in P19 cells during RA-induced differentiation. However, silencing of PBX expression in P19 cells (AS cells) results in a failure of these cells to differentiate upon RA treatment. Chicken Ovalbumin Upstream Promoter Transcription Factor I (COUP-TFI) and Chicken Ovalbumin Upstream Promoter Transcription Factor II (COUP-TFII) are orphan members of the steroid-thyroid hormone superfamily. The mRNA and protein levels of both COUP-TFI and COUP-TFII are low in proliferating wild type P19 EC cells. However, when wild type P19 cells are induced to differentiate upon RA treatment, COUP-TFI and COUP-TFII mRNA and protein levels are dramatically increased while the levels of pluripotency associated gene products are strikingly reduced. Conversely, COUP-TFI and COUP-TFII mRNA levels fail to be elevated upon RA treatment in PBX AS P19 EC cells. Therefore it was hypothesized that COUP-TFs may be downstream targets of PBX and required factors mediating the RA-dependent differentiation cascade in P19 cells. To determine the role of COUP-TFI during differentiation of P19 cells, PBX AS cells that inducibly express V5 tagged COUP-TFI using the Tet-Off® Advanced Inducible Gene Expression system were prepared. Using this system, we demonstrate that exogenous COUP-TFI expression, in a dose-dependent fashion, leads to growth inhibition, modest cell cycle disruption and early apoptosis. Furthermore, using this cell model which inherently is incapable of undergoing RA-mediated differentiation due to blockage of PBX induction, we demonstrate that a supraphysiological level of COUP-TFI expression can overcome the blockage of RA-dependent differentiation in PBX AS cells. However, AS cells expressing a physiological level of COUP-TFI differentiate to endodermal cells only upon treatment with RA. Additionally, gene expression studies indicate that the reductions of pluripotency maintenance genes observed in the COUP-TFI expressing cells are similar to that of wild type P19 cells (upon RA treatment) suggesting that COUP-TFI expression is a driving force towards loss of pluripotency. Moreover, gene expression studies indicate COUP-TFI is involved in the regulatory modulation of at least two RA response genes, CYP26A1 and HoxA1, indicating that COUP-TFI may have some effect on either maintaining or reducing these genes expression levels when COUP-TFI becomes expressed. COUP-TFII is expressed as two distinct variants, Variant 1(V1) and Variant 2 (V2). V1 is the variant that functions as a classical nuclear receptor by binding target DNA sequences and affecting gene transcription whereas V2 is a truncated form of V1 lacking the ability to bind DNA. We therefore hypothesized that V2 could serve as a dominant negative receptor by limiting the amount of functional V1 in the cell. Unexpectedly, we found using P19 cells that overexpress V2 that RA-mediated differentiation proceeded normally suggesting V2 does not function as a dominant negative repressor. Taken together, these studies demonstrate for the first time (i) that COUP-TFI functions as a physiologically relevant regulator during RA-mediated endodermal differentiation of P19 cells and (ii) COUP-TFII V2 is endogenously expressed in P19 cells; however its role during RA-mediated differentiation remains unclear.
Temple University--Theses
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Bueno, Natalia Fernanda. "Caracterização de dois pares efetor/inibidor associados ao sistema de secreção tipo IV de Xanthomonas citri." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/46/46131/tde-24082018-094918/.

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O sistema de secreção tipo IV (T4SS) da família de bactérias Xanthomonadaceae transfere efetores (X-Tfes) com a capacidade de matar outras bactérias, conferindo uma vantagem em comunidades bacterianas mistas para colonizar diferentes nichos como o solo ou as superfícies das plantas. Os X-Tfes possuem diferentes domínios putativos com atividades hidrolíticas contra componentes do envelope celular bacteriano do tipo: glicohidrolases, transglicosilases, amidases e lipases. Os X-Tfes por sua atividade biológica inata podem ocasionar dano intracelular para a bactéria que os produz. Para se proteger contra estas atividades, também são produzidas lipoproteínas com função inibitoria (X-Tfis) localizadas no periplasma. Os genes que codificam os X-Tfes e os X-Tfis estão organizados em operons, o que permite gerar os pares efetor/inibidor simultaneamente. Entre os potenciais X-Tfes do fitopatógeno Xanthomonas citri estão Xac1918 e Xac0574. Xac1918 é uma proteína com um domínio da superfamília da lisozima e um domínio conhecido como RTX (Repeats in Toxin) de ligação ao cálcio, enquanto Xac0574 tem um domínio da superfamília da lipase 3. Os seus possíveis inibidores, Xac1917 e Xac0573 respectivamente, apresentam um peptídeo sinal no N-terminal contendo o lipobox representativo das lipoproteínas. As proteínas Xac0574 e Xac0573 são monômeros em solução que formam um complexo estável 1:1, favorecido termodinamicamente (ΔG°= -12 Kcal/mol) com uma constante de dissociação de 2,45 nM, garantindo que a bactéria fique protegida contra os efeitos nocivos de Xac0574 quando é produzida intracelularmente. Xac0574 é uma fosfolipase A1, sem atividade lisofosfolipase, com a capacidade de hidrolisar os três fosfolipídios majoritários que compõem a membrana celular bacteriana, fosfatidilglicerol (PG), cardiolipina e fosfatidiletanolamina (PE), mostrando uma aparente preferência pelo último. A atividade enzimática de Xac0574 explica a forte inibição do crescimento celular em E. coli após da sua indução heteróloga, já que gera uma diminuição de quase 10 vezes da população celular comparada com a cultura não induzida com a mesma construção. Poroutro lado, Xac0573 inibe efetivamente a atividade enzimática de Xac0574 ao formar o complexo, além de não ter atividade fosfolipase nem lisofosfolipase. Foram produzidos cristais da Xac1918 e Xac0573 que difrataram com uma resolução de 3,0 e 2,5 Å, respectivamente. Porém, só foi gerado um modelo de Xac0573. Xac0573 está composta por duas folhas β antiparalelas com uma topologia característica de β sanduíche Com uma pequena hélice e duas voltas. Um alinhamento de homólogos de Xac0573 identificou nas extremidades da proteína as regiões conservadas, constituindo duas possíveis interfaces de interação que podem ser as responsáveis por bloquear o acesso dos fosfolipídios ao sítio catalítico ou impedir os rearranjos estruturais de Xac0574 que são necessários para a sua atividade enzimática. Adicionalmente, a topologia da Xac0573 é semelhante do domínio C2, conhecido em eucariotos como domínio de ligação ao lipídio e ao cálcio, e está envolvido em processos de sinalização de segundos mensageiros lipídicos, proteínas de trafego de membranas e mecanismos de fusão de membranas. Nossos resultados apontam para uma nova função biológica do domínio C2 como um inibidor enzimático intracelular em bactérias.
The type IV secretion system (T4SS) of the bacteria family Xanthomonadaceae transfers effectors (X-Tfes) with that can kill other bacterial cells, conferring an advantage to the bacterial community during colonization of different niches in the soil or on the plant surface. The X-Tfes possess different putative domains with hydrolytic activity against components of the bacterial cellular envelope, including glycohydrolase, transglycolase, amidase and lipase domain. The innate biological activity of X-Tfes can cause intracellular damage. Therefore, the bacteria that produce them also produce lipoproteins with inhibitor function (X-Tfis) located in the periplasm for their protection. The genes that code for X-Tfes and X-Tfis are organized in operons that allow for their simultaneous expression. Among the X-Tfes of the phytopathogen Xanthomonas citri are Xac1918 and Xac0574. Xac1918 is carries a lysozyme superfamily domain, as well as a domain known as RTX (Repeats in Toxic) predict to bind calcium, while, Xac0574 has a domain belonging to the lipase 3 superfamily. Their possible inhibitors, Xac1917 e Xac0573 respectively, carry an N-terminal signal peptide containing a lipobox found in bacterial lipoproteins. The Xac0574 and Xac0573 proteins are both monomers in solution, They can form a stable 1:1 complex, that is thermodynamically favored (ΔG°= -12 Kcal/mol) with a dissociation constant of 2,45 nM. This affinity ensure that the bacterium is protected against the harmful effects of Xac0574 when it is produced intracellularly. We show that Xac0574 is a phospholipase A1, without lisophospholipase activity, and is able to hydrolyze the three most common phospholipids found in the membranes of Gram negative bacteria, namely phosphatidylglycerol (PG), cardiolipin and phosphatidylethanolamine (PE), presenting an apparent preference for PE. The enzymatic activity of Xac0574 explains the strong inhibition of growth of E. coli cells after its heterologous induction: a nearly 10-fold decrease in the cell population is observed when compared to the non-induced culture with the same construct. On the other hand, Xac0573 effectively inhibits the enzymatic activity of Xac0574. Furthermore, Xac0573 does not possess when forming the complex, besides not having phospholipase nor lysophospholipase activity.Crystals of Xac1918 and Xac0573 were produced which diffracted with to resolution of 3.0 and 2.5 Å, respectively. However, we were able to resolve the structure of only Xac0573. Xac0573 is composed of two anti-parallel sheet that form a β-sandwich with three small helices. An alignment to Xac0573 homologs identified conserved regions at the ends of the protein that constitute two possible interfaces of interaction that may be responsible for blocking the access of the phospholipids to the catalytic site or impede the structural rearrangements of Xac0574 that are necessary for its enzymatic activity. Additionally, the topology of Xac0573 is similar to that to C2 domains, known in eukaryotes to bind lipids and calcium and to be involved in signaling processes mediated by lipid second messengers, membrane trafficking and membrane fusion mechanisms. Our results point to a new biological function of the C2 domain as an intracellular enzyme inhibitor in bacteria.
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Gallais, Rozenn. "Chromatine et transcription : influence du récepteur nucléaire orphelin COUP-TFI dans les cellules pluripotentes P19." Rennes 1, 2007. http://www.theses.fr/2007REN1S028.

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La différenciation cellulaire requiert la modulation de l’expression de son patrimoine génétique, associée à une relocalisation de loci de gènes au sein du noyau et à la réorganisation structurale de la chromatine, notamment au niveau de modifications épigénétiques telle que la méthylation de l’ADN sur les CpGs. Ces processus ont été étudiés dans les cellules P19, dont la différenciation neuronale peut être induite par l’acide rétinoïque. Lors de cette différenciation, la transcription du gène vitronectine (Vn) est activée, le récepteur nucléaire orphelin COUP-TFI intervenant dans cette régulation. Afin de comprendre les évènements associés à la transition d’un gène d’un locus chromatinien répressif vers un environnement permissif, les mécanismes permettant l’activation du gène Vn par COUP-TFI ont été analysés. Un complexe TDG/p68/Dnmt3 impliqué dans la déméthylation des CpGs du promoteur Vn a ainsi été caractérisé. De plus, nous avons montré l’existence d’une focalisation de COUP-TFI au sein de foyers ARN Polymérase II, reliée à un recrutement de COUP-TFI sur de plus large régions du génome que les promoteurs de ses gènes cibles
Cell differentiation is associated with the modulation of the expression of its genome. These regulations are connected with the relocation of genomic loci from silent to active domains, occurring in parallel with specific variations of incidence of given epigenetic marks, such as DNA methylation on CpGs. These processes have been considered in P19 cells, which neuronal differentiation can be induced by retinoic acid. During this process, the vitronectine (Vn) gene transcription is activated through mechanisms involving the orphan nuclear receptor COUP-TFI. Underlying processes of these regulations have been studied, in order to decipher molecular processes remodeling a chromatin organization from a repressed to an active state. Our results indicate that a TDG/p68/Dnmt3 complex is recruited to the Vn genomic region, associated with the demethylation of the CpGs present within this region. Furthermore, we demonstrated that COUP-TFI accumulates into RNA Polymerase II foci, associated with the engagement of COUP-TFI on genomic regions broader that are than the promoters of its target genes
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Cruz, Luciana Oliveira. "Identificação e seleção de novos genes humanos associados a tumores a partir de dados obtidos no projeto Transcript Finishing Initiative (TFI)." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/46/46131/tde-16112007-111539/.

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Após o seqüenciamento completo do genoma humano, a busca e caracterização do conjunto completo de genes humanos constitui-se no principal desafio nesta área de investigação, sendo o passo limitante para o progresso na exploração dos dados contidos no seqüenciamento deste genoma. O projeto de transcriptoma denominado \"Transcript Finishing Initiative\" (TFI) surgiu neste contexto, com o objetivo principal de gerar fragmentos parciais de transcritos humanos, que não haviam sido descritos previamente e determinar sua seqüência, para iniciar a caracterização de novos genes humanos. A estratégia utilizada foi q alinhamento de todas as seqüências ORESTES e ESTs disponíveis com a seqüência pública do genoma humano e o agrupamento j c1usterização destas com base nas coordenadas deste genoma. Algumas das regiões que não eram cobertas por estas seqüências foram, então, completadas, por RT-PCR, utilizando-se primers ancorados nos clusters vizinhos. Cada par de clusters de ESTs selecionado para validação experimental foi designado como uma Unidade do \"Transcript Finishing\" (TFU), tendo sido validadas experimentalmente, pelo grupo TFI, Um total de 211 TFUs foram validadas, sendo que 197 seqüências consenso foram submetidas ao Genbank (CF272536-CF272733). Atualmente, apenas um pequeno número destas seqüências ainda são considerados genes novos, sem que haja um cDNA depositado em banco de dados; contudo para um número considerável destas TFUs não existe qualquer caracterização sobre sua função. Na tentativa de contribuir para melhor caracterização dos genes identificados no projeto TFI, e tendo, como base, a linha de pesquisa do laboratório, que busca genes diferencialmente expressos envolvidos em transformação maligna/tumorigênese, o presente trabalho propôs a utilização das seqüências TFUs para estudar sua possível associação com tumores de glia humanos e outros tipos de tumores (de próstata e de mama). Para tanto, as TFUs foram analisadas \"in silico\" para estabelecer seu grau de ineditismo como um novo gene ou um gene sem função conhecida, e, para análise de sua expressão diferencial entre tecidos normais e tumorais de cérebro, próstata e mama. Para validar estas análises computacionais na bancada, foram gerados macro- e microarranjos de DNA utilizando-se as TFUs disponíveis como clones físicos ou amplicons, para o rastreamento com sondas das linhagens celulares A172 e T98G de glioblastomas. Os resultados das análises destes dados foram confirmados por PCR quantitativo tanto nas linhagens como em amostras clínicas de astrocitomas que apresentam diversos graus de malignidade. Como resultado, foi possível organizar um Banco de Clones Físicos de TFUs, além de identificar e selecionar uma TFU (168), cuja expressão correlaciona diretamente com o grau de malignidade dos tumores de glia. Esta seqüência corresponde a um novo gene, já que não existe a seqüência de cDNA completo nos bancos de dados. Em vista disto, a TFU168 foi selecionada para estudos funcionais posteriores, que já estão em andamento, através da obtenção de suaseqüência completa de cDNA para ensaios de superexpressão e do silenciamento gênico através de RNAi.
Upon complete sequencing of the human genome, identification and characterization of the complete set of human genes constitutes the major challenge in this research field, constituting the limiting step for progress in exploration of the informations contained in the genome sequencing data. The Transcript Finishing Initiative (TFI) transcriptome project arose in this context, aiming at the generation, sequencing and characterization of partial new human transcripts and genes. The strategy adopted was the alignment of the alI the available ORESTES and EST sequences data with the public human genome sequence and their clusterization based on the coordinates of this genome. Thus, some of the regions which were not cover by ESTs and ORESTES (gaps) were then completed by RT-PCR using primers anchored in the neighboring clusters. Each pair of EST clusters selected for experimental validation was named Transcript Finishing Unit (TFU). A large number (211) of TFU s were validated and 197 -consensus sequences were submitted to the Genbank (CF272536-CF272733). At present, only a few of these sequences are considered as new genes without a full-Iength cDNA sequence deposited in the data bank, however, no functional characterization is yet available for a large number of these sequences. In an attempt to contribute to further characterization of these genes identified in the TFI project and keeping in mind the main interest of our laboratory, which is the identification of differentially expressed genes in tumor versus normal tissue, the present work aims at utilizing these TFUs to find differentially expressed genes associated with human glial tumors and with other kinds of tumors. To this end, these sequences were first subjected to in silico analysis in order to establish their degree of ineditism (new sequences and/or sequences with unknown function) and their expression profile between normal and tumoral tissues of brain, mammary gland and prostate. To validate this computational analysis, DNA macro- and microarrays were generated with the TFU sequences and screened with cDNA probes obtained from the A172 and T98G glioblastomas cell lines. The results of these screenings were confirmed by quantitative PCR both in cell lines and in tumor samples of different degrees of malignancy. The results obtained in this work allowed the organization of a TFUs Physical Clones Bank and the identification and selection of one sequence (TFU 168), whose expression is directly re1ated to the degree of tumor malignancy. This sequence constitutes a new gene, since no complete cDNA sequence is available in the data banks. Therefore, TFU168 was selected for further functional studies by obtaining its full-Iength cDNA sequence to be used for over expression by silencing this gene using RNAi.
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Magrinelli, Elia. "Le récepteur nucléaire orphelin COUP-TFI contrôle l’identité sensorielle et l'activité neuronale dans les cellules post-mitotiques du néocortex chez la souris." Thesis, Nice, 2016. http://www.theses.fr/2016NICE4037/document.

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Le néocortex est une région du cerveau qui traite toutes les entrées sensorielles et créé des réponses comportementales. Il est subdivisé en zones fonctionnelles, chacune ayant une cytoarchitecture, un motif d’expression génique et un profil de connectivité spécifiques. L'organisation en zones est pré-modelée par des gènes organisateurs, et ensuite affinée par l’activité sensorielle. Dans cette étude, j'ai étudié d'abord si ce pré-modelage est établi dans les progéniteurs et/ou les cellules post-mitotiques, et si l'activité neuronale spontanée est nécessaire pour l’établissement de la connectivité correcte entre néocortex et thalamus, station relais principale des données sensorielles. Avec l'aide d'une série de souris transgéniques, j’ai montré que la fonction du gène organisateur COUP-TFI est suffisante et nécessaire pour organiser l'identité sensorielle dans les cellules post-mitotiques, et que COUP-TFI régule l'activité intrinsèque des neurones corticaux, influençant la bonne intégration des entrées thalamiques dans le cortex somatosensoriel. J’ai montré que COUP-TFI contrôle directement l'expression du gène Egr1, qui dépend fortement de l'activité neuronale. COUP-TFI et Egr1 agissent sur l'acquisition de la morphologie des cellules étoilées dans les neurones de la couche 4, cibles principales des axones thalamiques et trait typique des zones somatosensoriels primaires. En conclusion, ce travail montre que le pré-modelage cortical dépend primordialement d’un programme génétique établi dans les cellules post-mitotiques et que l'activité intrinsèque et les propriétés génétiques agissent ensemble pour façonner l'organisation des premiers circuits dans le néocortex
The neocortex is a region of the brain that processes all sensory inputs creating appropriate behavioral responses. It is subdivided into functional areas, each with a specific cytoarchitecture, gene expression pattern and connectivity profile. The organization into areas is pre-patterned by the action of areal patterning genes, and subsequently refined by sensory evoked activity. In this study, I have first investigated whether early areal patterning is committed in progenitor and/or post-mitotic cells, and then assessed whether spontaneous neuronal activity is required in establishing correct connectivity between the neocortex and the thalamus, the principal relay station of peripheral sensory inputs. With the help of a series of transgenic mice, my work showed that the function of the areal patterning gene COUP-TFI is sufficient and necessary to organize sensory identity in post-mitotic cells, and that COUP-TFI regulates intrinsic activity properties of cortical neurons, and thus proper integration of thalamic inputs into the somatosensory cortex. In particular, I found that COUP-TFI directly controls the expression of the immediate early gene Egr1, which expression levels strongly depend on neuronal activity. Both COUP-TFI and Egr1 act on the acquisition of the stellate cell morphology of layer 4 neurons, the main targets of thalamic axons and a typical trait of primary somatosensory areas. In conclusion, this work demonstrates that cortical area patterning primordially depends on a genetic program established in post-mitotic cells and that intrinsic genetic and activity properties act together to shape the organization of early circuits in the neocortex
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Fackrell, Kathryn L. "Validation of a new questionnaire measure of tinnitus functioning and disability for use in the UK : the Tinnitus Functional Index (TFI)." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33119/.

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The Tinnitus Functional Index (TFI) was developed in the USA as a standard for assessing the functional impact of tinnitus based on eight tinnitus-related domains. The finalised 25-item version was never formally validated. This PhD seeks to assess the psychometric properties of the questionnaire and evaluate its suitability as the tool of choice for use in the diagnostic and outcome assessment of tinnitus for clinical and research purposes in the UK. The primary objectives were to (i) determine whether the TFI is reliable, (ii) verify its factor structure, and (iii) evaluate its responsiveness to treatment-related change. These objectives were evaluated in two UK studies. The first was a prospective multi-centre longitudinal validation study in which 255 NHS patients were recruited from audiology clinics to complete the TFI over four different time points in a nine-month period. The second was a retrospective analysis of data collected on the TFI and a battery of other health questionnaires from 294 members of the general public who had previously participated in two-centre randomised controlled trial of a novel tinnitus device. Approaches to psychometric analysis included classical and modern test theories, including Rasch measurement theory. Both approaches led to similar conclusions. Seven of the eight subscales were reliable and valid in both studies, although not as sensitive as the original developers proposed. Classical testing showed the auditory subscale to be reasonably reliable, but Rasch modelling indicated that it did not measure the functional impact of tinnitus. The overall factor structure was not confirmed. The sleep and auditory subscales did not relate to the other subscales and did not fit the model. My recommendation is to calculate the composite TFI score using only six subscales. The sleep subscale should be scored separately and the auditory subscale should not be used.
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9

Celi, Guillaume. "Etude, applications et améliorations de la technique LVI sur les défauts rencontrés dans les technologies CMOS avancées 45nm et inférieur." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00904697.

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L'analyse de défaillances joue un rôle important dans l'amélioration des performances et de la fabrication des circuits intégrés. Des défaillances peuvent intervenir à tout moment dans la chaîne d'un produit, que ce soit au niveau conception, durant la qualification du produit, lors de la production, ou encore lors de son utilisation. Il est donc important d'étudier ces défauts dans le but d'améliorer la fiabilité des produits. De plus, avec l'augmentation de la densité et de la complexité des puces, il est de plus en plus difficile de localiser les défauts, et ce malgré l'amélioration des techniques d'analyses. Ce travail de thèse s'inscrit dans ce contexte et vise à étudier et développer une nouvelle technique d'analyse de défaillance basée sur l'étude de l'onde laser réfléchie le "Laser Voltage Imaging" (LVI) pour l'analyse de défaillance des technologies ultimes (inférieur à 45nm).
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10

Le, Dily François. "Interrelations entre le récepteur alpha des œstrogènes et le récepteur nucléaire coup-tfi dans le contrôle de la prolifération et de la différenciation de cellules mammaires." Rennes 1, 2006. http://www.theses.fr/2006REN1S090.

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Les œstrogènes (E2) sont connues pour leurs rôles dans la croissance des tumeurs mammaires. Ces hormones exercent leurs effets par l’intermédiaire de récepteurs spécifiques, les récepteurs des œstrogènes, ERα et ERβ. Les ER appartiennent à la superfamille des récepteurs nucléaires qui portent un domaine de liaison du ligand, un domaine d’interaction avec l’ADN et des fonctions de transactivation (AF-1 et AF-2) leur permettant d’agir comme des facteurs de transcription inductibles. Les récepteurs nucléaires orphelins COUP-TFI sont susceptibles de moduler l’activité du ERα. Afin d’appréhender l’impact des interrelations entre ERα et COUP-TFI au sein des cellules mammaires, nous avons établi des clones de cellules mammaires sur-exprimant stablement COUP-TFI. L’analyse de ces clones montre que COUP-TFI favorise la prolifération et stimule les capacités de migration de cellules ERα positives. COUP-TFI module sélectivement l’expression de gènes E2-régulés endogènes et exerce en particulier une stimulation de la fonction de transactivation AF-1 du ERα.
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Books on the topic "TFI"

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Objectif TFI: Test de français international : guide de préparation. [Plourin-Lès-Morlaix]: Edulang publishing, 2006.

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Tai Ji: Beginner's Tai Ji book. Berkeley, Calif: Celestial Arts., 1989.

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Huang, Al Chung-liang. Tai Ji: Essential Tai Ji. Berkeley, Calif: Celestial Arts, 2001.

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Yi xue xing tai xue shi yan: Zu zhi xue yu pei tai xue fen ce. Beijing: Gao deng jiao yu chu ban she, 2015.

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Dong, Huan, and Liu Yong. Qing nian du shu zhi nan. Beijing: Zhong guo ren shi chu ban she, 1998.

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Taiwan de jing tan hao: Tai Ri Han TFT shi ji zhi zheng. Taiabei Shi: Shi bao wen hua chu ban qi ye gu fen you xian gong si, 2004.

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Tai shang tai xia. Taibei Shi: Shi bao chu ban gong si, 1985.

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Tai shang, tai xia. Beijing: Zhongguo xi ju chu ban she, 1985.

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Yang, Dongming. Wen ti tai tai. Zhengzhou: He nan wen yi chu ban she, 2001.

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Tai shang tai xia. Taibei Shi: Shi bao chu ban gong si, 1985.

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Book chapters on the topic "TFI"

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Rüfenacht, Dominic. "Temporal Frame Interpolation (TFI)." In Novel Motion Anchoring Strategies for Wavelet-based Highly Scalable Video Compression, 37–50. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8225-2_3.

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Åhlfeldt, Rose-Mharie, Paolo Spagnoletti, and Guttorm Sindre. "Improving the Information Security Model by using TFI." In New Approaches for Security, Privacy and Trust in Complex Environments, 73–84. Boston, MA: Springer US, 2007. http://dx.doi.org/10.1007/978-0-387-72367-9_7.

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Holze, Rudolf. "Ionic conductivities of 1-ethyl-3-methylimidazolium-TFI ionic liquid." In Electrochemistry, 585. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-642-02723-9_532.

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Su, Yingli, Fei Xue, Yong Lu, and Kun Mao. "Application of RBF-TFI Moving Mesh Technology Based on Structural Grid in Static Aeroelasticity." In Lecture Notes in Electrical Engineering, 605–13. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-7423-5_60.

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Wing, James B., and Shimon Sakaguchi. "Using Mass Cytometry to Address Tfh and Tfr Heterogeneity." In Methods in Molecular Biology, 47–57. New York, NY: Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-1736-6_5.

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Kurz, Susanne. "TEI." In Digital Humanities, 197–249. Wiesbaden: Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-05793-0_5.

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Gooch, Jan W. "TDI." In Encyclopedic Dictionary of Polymers, 731. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11583.

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Gooch, Jan W. "TFE." In Encyclopedic Dictionary of Polymers, 740. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11729.

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Cioffi, William G., Michael D. Connolly, Charles A. Adams, Mechem C. Crawford, Aaron Richman, William H. Shoff, Catherine T. Shoff, et al. "TBI." In Encyclopedia of Intensive Care Medicine, 2193. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_2268.

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Kurz, Susanne. "TEI." In Digital Humanities, 195–251. Wiesbaden: Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-11213-4_5.

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Conference papers on the topic "TFI"

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Doyon, R., J. Hutchings, N. Rowlands, C. E. Evans, E. Greenberg, C. Haley, A. D. Scott, et al. "The JWST tunable filter imager (TFI)." In SPIE Astronomical Telescopes + Instrumentation, edited by Jacobus M. Oschmann, Jr., Mark C. Clampin, and Howard A. MacEwen. SPIE, 2010. http://dx.doi.org/10.1117/12.857382.

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Doyon, R., N. Rowlands, J. Hutchings, C. E. Evans, E. Greenberg, A. D. Scott, D. Touhari, et al. "The JWST tunable filter imager (TFI)." In SPIE Astronomical Telescopes + Instrumentation, edited by Jacobus M. Oschmann, Jr., Mattheus W. M. de Graauw, and Howard A. MacEwen. SPIE, 2008. http://dx.doi.org/10.1117/12.789504.

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"TFi: special session: digital imaging techniques 1." In Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference. IEEE, 2004. http://dx.doi.org/10.1109/imtc.2004.1351079.

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Matsumoto, Yuta IdaTakahiro, and Shinya Matsufuji. "Linear Interpolation Complex TFI for SP-OFDM." In 2020 IEEE International Conference on Consumer Electronics (ICCE). IEEE, 2020. http://dx.doi.org/10.1109/icce46568.2020.9043084.

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Ida, Yuta, Kota Imafuku, Takahiro Matsumoto, and Shinya Matsufuji. "Performance evaluation for AF relay TFI-OFDM systems." In 2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS). IEEE, 2015. http://dx.doi.org/10.1109/ispacs.2015.7432832.

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Yasinko, Ed A., Patrick H. Vieth, Dean D. Dick, Phil G. Nidd, and Troy D. Pierantoni. "Platte TFI Program: Innovative Solutions to Hydrostatic Testing." In 2000 3rd International Pipeline Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/ipc2000-185.

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Platte Pipe Line experienced an operational failure in July 1997. This failure was attributable to operational pressure cycle fatigue crack growth of a hook-crack in the longitudinal seam weld. This defect had grown to failure over a 24-year time period since it had been hydrostatically tested in 1973. In response to this failure, the Department of Transportation (DOT) Office of Pipeline Safety (OPS) issued a corrective order to verify the integrity of this pipeline through either hydrostatic testing or an approved in-line inspection program. An emerging technology, a Transverse Field Inspection (TFI) tool, was identified as a possible solution to this problem. Even though this inspection tool had not been used previously to identify seam-weld defects, this technology certainly showed promise. The results of our program show that the TFI program resulted in less impact on the operations of this pipeline and provided greater assurance than hydrostatic testing for the long-term operational reliability of this pipeline system. This paper describes the steps required to use this inspection tool for the Platte Pipe Line rehabilitation program.
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Sibbett, Wilson. "TFI Session: Industrial applications of ultrafast technology - I." In 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference. IEEE, 2007. http://dx.doi.org/10.1109/cleoe-iqec.2007.4387093.

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Li, H. Y., M. Kawano, P. S. Lim, F. X. Che, and H. M. Chua. "Reliability Study of Low Cost TSV-Free Interposer (TFI)." In 2019 IEEE 21st Electronics Packaging Technology Conference (EPTC). IEEE, 2019. http://dx.doi.org/10.1109/eptc47984.2019.9026704.

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Beaulieu, Mathilde, René Doyon, and David Lafrenière. "Performance results of the TFI coronagraphic occulting masks prototypes." In SPIE Astronomical Telescopes + Instrumentation, edited by Jacobus M. Oschmann, Jr., Mattheus W. M. de Graauw, and Howard A. MacEwen. SPIE, 2008. http://dx.doi.org/10.1117/12.787991.

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Yoshimura, Tomoki, Chang-Jun Ahn, Tatsuya Omori, and Ken-ya Hashimoto. "Path-selection based adaptive guard interval for TFI-OFDM system." In TENCON 2011 - 2011 IEEE Region 10 Conference. IEEE, 2011. http://dx.doi.org/10.1109/tencon.2011.6129165.

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Reports on the topic "TFI"

1

Lamothe, Kristina L. Measuring the Effectiveness of Active Associate TFI Units. Fort Belvoir, VA: Defense Technical Information Center, June 2015. http://dx.doi.org/10.21236/ada619601.

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Knowles, Michael R. Ready for TFI Prime Time? A Closer Examination of the Dual Component Commander and the Integrated Wing. Fort Belvoir, VA: Defense Technical Information Center, February 2015. http://dx.doi.org/10.21236/ada618882.

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Trachunthong, Deondara, Suchintana Chumseng, Worrayot Darasawang, and Mathuros Tipayamongkholgul. Risk Factors and National Burden of Selected Noncommunicable Diseases in People Living with HIV: Systematic Review, Meta-Analysis and, Disability-Adjusted Life Years protocol. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, September 2022. http://dx.doi.org/10.37766/inplasy2022.9.0018.

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Review question / Objective: 1. Are the prevalence/incidence of four major groups of NCDs including MetS, DM, CVD, and CKD different among adults with and without HIV infection? 2. Are there relationships between HIV status, ART (ART use, short and long-term effects of ART), traditional risk factors (BMI), and the development of four major NCDs? 3. Does the trend of NCDs burden attributable to HIV in Thailand increase according to the time? Information sources: 1. Electronic databases: the following databases will be searched: PubMed/Medline, Scopus, Embase, Cochrane Library Thai journals online (ThaiJO), Thai digital collection (TDC), Thai journal index (TJI), and Thai-journal citation index (TCI). 2. Authors or experts in the field will be contacted through emails for any relevant data, results and information.
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Wingo, Jamie Joann. TFA Performance Improvement. Office of Scientific and Technical Information (OSTI), December 2019. http://dx.doi.org/10.2172/1592902.

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Lai, Sharon, Kevin Lane, and Laura Nunn. The Term Funding Facility: Has It Encouraged Business Lending? Reserve Bank of Australia, December 2022. http://dx.doi.org/10.47688/rdp2022-07.

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The Reserve Bank of Australia's Term Funding Facility (TFF) was announced in March 2020 as part of a package of policy measures to support the Australian economy. It achieved a key objective of providing banks with three-year low-cost funding and was available for drawdown until 30 June 2021. This paper examines the effectiveness of the TFF in increasing the supply of credit to businesses, which was another one of the objectives of the program. Using bank-level data and a difference-in-differences approach, we find no statistically significant evidence that the TFF increased credit supply to businesses. However, our confidence intervals are wide and there are significant identification challenges involved in disentangling the effects of the TFF from the effects of pandemic-related disruptions and other policy interventions on credit supply and demand. Nonetheless, the TFF provided an assured source of funding at a time of considerable stress in the financial system and lowered banks' funding costs, and any effects on business lending via these channels may not be fully reflected in our results.
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Mantz, Robert A., and Paul C. Trulove. Tri-Service Corrosion Conference. Fort Belvoir, VA: Defense Technical Information Center, January 2002. http://dx.doi.org/10.21236/ada426685.

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Lyeth, Bruce. Advanced Sensors for TBI. Fort Belvoir, VA: Defense Technical Information Center, July 2014. http://dx.doi.org/10.21236/ada610836.

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Lyeth, Bruce. Advanced Sensors for TBI. Fort Belvoir, VA: Defense Technical Information Center, July 2013. http://dx.doi.org/10.21236/ada612521.

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Floyd, Candance L., and Katherine L. Nicholson. Opioid Abuse after TBI. Fort Belvoir, VA: Defense Technical Information Center, July 2014. http://dx.doi.org/10.21236/ada613999.

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Floyd, Candace L., and Katherine L. Nicholson. Opioid use after TBI. Fort Belvoir, VA: Defense Technical Information Center, July 2012. http://dx.doi.org/10.21236/ada568258.

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