43 research outputs found

    Two distinct superconducting phases in LiFeAs

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    A non-trivial temperature evolution of superconductivity including a temperature-induced phase transition between two superconducting phases or even a time-reversal symmetry breaking order parameter is in principle expected in multiband superconductors such as iron-pnictides. Here we present scanning tunnelling spectroscopy data of LiFeAs which reveal two distinct superconducting phases: at = 18 K a partial superconducting gap opens, evidenced by subtle, yet clear features in the tunnelling spectra, i.e. particle-hole symmetric coherence peak and dip-hump structures. At Tc = 16 K, these features substantiate dramatically and become characteristic of full superconductivity. Remarkably, the distance between the dip-hump structures and the coherence peaks remains practically constant in the whole temperature regimeT ≤ . This rules out the connection of the dip-hump structures to an antiferromagnetic spin resonance

    The trans-ancestral genomic architecture of glycemic traits

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    Glycemic traits are used to diagnose and monitor type 2 diabetes and cardiometabolic health. To date, most genetic studies of glycemic traits have focused on individuals of European ancestry. Here we aggregated genome-wide association studies comprising up to 281,416 individuals without diabetes (30% non-European ancestry) for whom fasting glucose, 2-h glucose after an oral glucose challenge, glycated hemoglobin and fasting insulin data were available. Trans-ancestry and single-ancestry meta-analyses identified 242 loci (99 novel; P < 5 x 10(-8)), 80% of which had no significant evidence of between-ancestry heterogeneity. Analyses restricted to individuals of European ancestry with equivalent sample size would have led to 24 fewer new loci. Compared with single-ancestry analyses, equivalent-sized trans-ancestry fine-mapping reduced the number of estimated variants in 99% credible sets by a median of 37.5%. Genomic-feature, gene-expression and gene-set analyses revealed distinct biological signatures for each trait, highlighting different underlying biological pathways. Our results increase our understanding of diabetes pathophysiology by using trans-ancestry studies for improved power and resolution.A trans-ancestry meta-analysis of GWAS of glycemic traits in up to 281,416 individuals identifies 99 novel loci, of which one quarter was found due to the multi-ancestry approach, which also improves fine-mapping of credible variant sets.Diabetes mellitus: pathophysiological changes and therap

    Power Plant Engineering

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    xvi,868 p. : il; 23 c

    Disparity of a Seat Cushion and Its Influence on Postural Control

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    Properties of supporting surfaces of a seat have an influence on postural control. Centre of pressure (COP) displacement parameters reflect both the balance controlling process and movements of the centre of a mass of entire body. The subjects of the study were 9 healthy men. A seat cushion was examined with a 2-force platform setup. Force exertion at a seat pan and feet and COP displacement at a seat pan were measured to analyse postural control. Analysis of variance determined the differences in postural control depending on a cushion type among the subjects. Significant differences in COP displacement parameters were in COP trajectory length, medio-lateral COP displacement and COP velocity. The results of the study showed that foam cushion ensures better postural control

    Market‐based generator cost functions for power system test cases

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    Efficient Management of Soil Moisture with Jute Non-woven as Mulch for Cultivation of Sweetlime and Turmeric in Red Lateritic Zone

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    Mulch is a layer of material spread on top of the soil to conserve soil moisture, discourage the growth of weeds, help prevent erosion and prevent large fluctuations in soil temperature. Mulch modifies the soil micro-climate around the growing plants. Jute geotextile being a woven/non-woven knitted structure of natural fibre is used in various geo-technical, civil engineering and soil conservation applications. It can be used where vegetation is considered to be the long term answer to protected cultivation of fruits and spices in arid and semi-arid regions. With this objective in mind, field trials were undertaken on the use of jute non-woven geo-textiles as mulch for cultivation of sweet lime with turmeric as an intercrop in the dry lateritic soil of Midnapore (West) district of West Bengal. It was observed that yields of sweet lime and turmeric were substantially higher fetching higher economic returns to the growers

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    Not AvailableIn the present study an estimation of livestock enteric CH4 emission has been made from feeding systems (diets) for different animal functions (maintenance, production and growth) prevailing in different agroecological regions (AERs) of India using livestock population 2003. Estimations comprised of dietary intake, digestibility and CH4 emission factors for ruminant species of different age groups determined from feeding systems/diets. Methane production (ml g–1) from production diets in animal species tended to be more than growth and maintenance diets. Methane production (g kg digestible dry matter (DDM–1)) and percentage energy loss as CH4 varied significantly amongst diets, animal species and AER. Indian livestock emitted 9.10 T CH4 from enteric fermentation. Contribution of female animal stock was more than males, except indigenous cattle, where males contributed more (53.60%) than females (46.40%). Wide variability recorded in the study for intake, digestibility, CH4 production and CH4 emission factors in the animal species for prevailing feeding systems/diets presents ample scope to abate the livestock resource CH4 production through appropriate nutritional interventions.Not Availabl
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