8,929 research outputs found
Elastic thickness structure of the Andaman subduction zone: implications for convergence of the Ninetyeast Ridge
No full textAbstract not availableR.T. Ratheesh Kumar, B.F. Windley, V.J. Rajesh, M. Santos
Archean tectonics and crustal evolution of the Biligiri Rangan Block, southern India
No full textAbstract not availableR.T. Ratheesh-Kumar, M. Santosh, Qiong-Yan Yang, C. Ishwar-Kumar ,Neng-Song Chen, K. Sajee
Spatial variations of effective elastic thickness over the Ninetyeast Ridge and implications for its structure and tectonic evolution
No full textWe present new data on the strength of oceanic lithosphere along the Ninetyeast Ridge (NER) from two independent methods: spectral analysis (Bouguer coherence) using the fan wavelet transform technique, and spatial analysis (flexure inversion) with the convolution method. The two methods provide effective elastic thickness (T-e) patterns that broadly complement each other, and correlate well with known surface structures and regional-scale features. Furthermore, our study presents a new high resolution database on the Moho configuration, which obeys flexural isostasy, and exhibit regional correlations with the T-e variations. A continuous ridge structure with a much lower T-e value than that of normal oceanic lithosphere provides strong support for the hotspot theory. The derived T-e values vary over the northern (higher T-e similar to 10-20 km), central (anomalously low T-e similar to 0-5 km), and southern (low T-e similar to 5 km) segments of the NER. The lack of correlation of the T-e value with the progressive aging of the lithosphere implies differences in thermo-mechanical setting of the crust and underlying mantle in different parts of the NER, again indicating diversity in their evolution. The anomalously low T-e and deeper Moho (similar to 22 km) estimates of the central NER (between 0.5 degrees N and 17 degrees S) are attributed to the interaction of a hotspot with the Wharton spreading ridge that caused significant thermal rejuvenation and hence weakening of the lithosphere. The higher mechanical strength values in the northern NER (north of 0.5 degrees N) may support the idea of off-ridge emplacement and a relatively large plate motion at the time of volcanism. The low T-e and deeper Moho (similar to 22 km) estimates in the southern part (south of 17 degrees S) suggest that the lithosphere was weak and therefore younger at the time of volcanism, and this supports the idea that the southern NER was emplaced on the edge of the Indian plate. (C) 2013 Elsevier B.V. All rights reserved
Older patients’ experiences of colorectal cancer: functional status and service use following treatment
No full textTectonic inheritance of the Indian Shield: New insights from its elastic thickness structure
No full textA new evaluation of the elastic thickness (Te) structure of the Indian Shield, derived from isotropic fan wavelet methodology, documents spatial variations of lithospheric deformation in different tectonic provinces correlated with episodic tectono-thermal events. The Te variations corroborated by shear velocity, crustal thickness, and seismogenic thickness reveal the heterogeneous rheology of the Indian lithosphere. The thinned, attenuated lithosphere beneath Peninsular India is considered to be the reason for its mechanically weak strength (<30 km), where a decoupled crust-mantle rheology under different surface/subsurface loading structures may explain the prominent low Te patterns. The arcuate Te structure of the Western Dharwar province and a NNE-trending band of low Te anomaly in the Southern Granulite Terrane are intriguing patterns. The average Te values (40-50 km) of the Central Indian Tectonic Zone, the Bastar Craton, and the northern Eastern Ghats Mobile Belt are suggestive of old, stable, Indian lithosphere, which was not affected by any major tectono-thermal events after cratonic stabilization. We propose that the anomalously high Te (60-85 km) and high S-wave velocity zone to the north of the Narmada-Son Lineament, mainly in NW Himalaya, and the northern Aravalli and Bundelkhand Cratons, suggest that Archean lithosphere characterized by a high velocity mantle keel supports the orogenic topographic loads in/near the Himalaya. The Te map clearly segments the volcanic provinces of the Indian Shield, where the signatures of the Reunion, Marion, and Kerguelen hotspots are indicated by significantly low Te patterns that correlate with plume- and rift-related thermal and mechanical rejuvenation, magmatic underplating, and crustal necking. The correlations between Te variations and the occurrence of seismicity over seismically active zones reveal different causal relationships, which led to the current seismogenic zonation of the Indian Shield. (C) 2013 Elsevier B.V. All rights reserved
Radioactive reverse transcription PCR (RT-PCR) analysis of strain SSB318 complemented with wt or C238/C239
No full text<p><b>Copyright information:</b></p><p>Taken from " and investigation of bacterial type B RNase P interaction with tRNA 3′-CCA"</p><p></p><p>Nucleic Acids Research 2007;35(6):2060-2073.</p><p>Published online 13 Mar 2007</p><p>PMCID:PMC1874595.</p><p>© 2007 The Author(s)</p> PCR products were analyzed on a 10% polyacrylamide/8 M urea gel. Lanes 1–30: total RNA from SSB318 complemented with wt (lanes 1–4 and 13-16), C238 (lanes 5–8, 17–20 and 25–30) or C239 (lanes 9–12 and 21–24) grown at 37°C in the absence of IPTG and in the presence of 2% xylose (w/v); amounts of total RNA were 200 ng in lanes 1–24, 26 and 29, 100 ng in lanes 25 and 28, and 400 ng in lanes 27 and 30. P : presence (+) or absence (−) of a xylose-inducible plasmid-encoded gene. Lanes 1–12 and 25–27: primers specific for ; lanes 13–24 and 28–30: primers specific for the mRNA encoding ribosomal protein S18 (S18). AMV: presence (+) or absence (−) of reverse transcriptase. For details on RT-PCR, see the Material and Methods section. Lanes 25–30 document that the amount of RT-PCR product was sensitive to RNA template concentration. The figure illustrates a representative experiment, but the results shown here were reproduced in five individual experiments using three independent total RNA preparations
RT-PCR of <i>ltx</i> operon genes in <i>A</i>. <i>actinomycetemcomitans</i> strains and leukotoxic activity by THP-1 cell killing.
No full textThe RT-PCR analysis shows that there was no ltxA transcript in RhAa-VS2, however the other genes in the ltx operon were intact without polar effect. The complemented strain RhAa-VS3 showed an ltxA band corresponding to RhAa3. NC- negative control reaction with RNA as the template without reverse transcriptase. PC-positive control with DNA as the template (A). The extracellular extracts of the anaerobically grown RhAa-VS2 strain showed a significantly decreased leukotoxicity (PPP<0.05 was considered as significance (B).</p
Prescribing by mental health nurses: the UK perspective
No full textPURPOSE. This article aims to discuss the growth of mental health nurse (MHN) prescribing in the United Kingdom as an exemplar for readers to compare progress in their own countries and context. This study also aims to provide a historical overview of this process in the United Kingdom where MHNs prescribe safely and competently.
CONCLUSIONS. Finally, evidence has shown that MHNs with prescriptive authority are competent when prescribing when compared to psychiatrists.
PRACTICE IMPLICATIONS. Despite organizational barriers and educational concerns, MHN prescribing is becoming embedded in the healthcare context in the United Kingdo
Modular RT-Motion USB Software Framework
No full textPhilips Applied Technologies has developed the RT-Motion USB platform as a compact distributed real-time motion control platform, but the platform can still be improved by developing a more advanced software framework. The goal of this thesis project is to design a modular software framework to complement the RT-Motion USB platform with extendability, flexibility, and configurability. The design focuses on the extendability of the platform by developing foundation building blocks to integrate software extension modules and device drivers easily. The design emphasizes the principle of simplicity to ensure the lowest possible overhead and highest reliability. The firmware is modular, which allows each module to concentrate on its own area. The implementation of the design has been tested and is proved to provide extendability, flexibility, and configurability while incurring low overhead. The improvement to the RT-Motion USB platform is expected to extend the applicability of the RT-Motion USB platform to a broader application range.Microelectronics & Computer EngineeringElectrical Engineering, Mathematics and Computer Scienc
RT-qPCR-based confirmation of RNA-sequencing results using both LNA GapmeRs against TUG1.
No full textHUVECs were transfected with two LNA GapmeRs against TUG1—LNA TUG1_1 and LNA TUG1_2 –and LNA Ctrl and expression levels of (A) VAMP4, (B) TOR1AIP2, (C) KAT6B and (D) ABCA1 were measured after 48 hours by RT-qPCR. Expression is relative to P0 (n = 4; SEM; RM one-way ANOVA with Greenhouse-Geisser correction and Holm-Sidak multiple comparison test). (TIF)</p
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