108 research outputs found
Fysisk prestation och matchkrav inom elitfotboll - Samband mellan smålagsspel och de mest intensiva perioder inom fotboll
De fysiska kraven hos elitfotbollsspelare är stora och såväl aerob som anaerob förmåga är viktiga för prestationen. Individuella skillnader i fysisk kapacitet spelare emellan är välkänt men individuell träningsplanering med lämplig belastning för att optimera spelares enskilda behov är inte lika väl studerat. Syftet med denna studie är att undersöka sambandet mellan spelares matchkrav i fotboll i form av högintensiva perioder (peakperioder) och träningsrespons på smålagsspel. Vi har studerat individuella spelares högintensiva perioder i match, olika typer av smålagsspel (4v4, 6v6 och 8v8) och andra fysiska tester. Studien har en kvantitativ experimentell design där GPS-data i fotboll är analyserad. 17 elitfotbollsspelare (Ålder 23.7 ± 4.8 år, vikt 76.4 ± 4.8 kg, längd 181.1 ± 5.2 cm) från allsvenskan och superettan i svensk herrfotboll deltog i studien. Resultaten visar att olika typer av smålagsspel belastar spelarna på olika sätt, där vissa fysiska variabler har ett medel (>0.30) till stark korrelation (>0.70), medan andra variabler visar en svag (>0.10) till ingen korrelation (<0.10). Sambandet mellan fysiska tester och matchkrav i form av peakperioder visar att endast Repeated Sprint Ability (RSA) kan ha en relevant användning för att förutse prestation i peakperioder. Information om vilken typ av smålagsspel som har vilken effekt och hur de belastar spelaren samt matchkrav på individ- och gruppnivå kan underlätta för tränaren vid utformning av träningsplanering. Slutligen krävs mer forskning inom området för att säkerhetsställa att tillämpningen av smålagsspel samt de fysiska testerna, gentemot matchkraven i form av peakperioder, blir så matchlik och optimal som möjligt
Unsupervised hierarchical clustering of normal human tissues based on the variation of miRNA abundance demonstrates similar patterns as shown in Figure 2
<p><b>Copyright information:</b></p><p>Taken from "Characterization of microRNA expression profiles in normal human tissues"</p><p>http://www.biomedcentral.com/1471-2164/8/166</p><p>BMC Genomics 2007;8():166-166.</p><p>Published online 12 Jun 2007</p><p>PMCID:PMC1904203.</p><p></p> Normalized Cfor each assay was transformed into ΔCagainst the average Cof all assays examined and clustered without centering the data. A pseudocolor scale outlines the Cvalues represented in the heat map. A detailed view of the clustering patterns of normal tissues is on the right
An enlarge view of the eight groups of most differentially expressed miRNAs
<p><b>Copyright information:</b></p><p>Taken from "Characterization of microRNA expression profiles in normal human tissues"</p><p>http://www.biomedcentral.com/1471-2164/8/166</p><p>BMC Genomics 2007;8():166-166.</p><p>Published online 12 Jun 2007</p><p>PMCID:PMC1904203.</p><p></p> The pseudocolor scale is the same as that in Figure 3
The list of predicted target genes for miR-199a/199b/214 was refined by their expression in 19 normal tissue types extracted fromthe GNF database
<p><b>Copyright information:</b></p><p>Taken from "Characterization of microRNA expression profiles in normal human tissues"</p><p>http://www.biomedcentral.com/1471-2164/8/166</p><p>BMC Genomics 2007;8():166-166.</p><p>Published online 12 Jun 2007</p><p>PMCID:PMC1904203.</p><p></p> Blue bars on the right side of the heat map, genes with brain-specific expression; red bars, genes with PBMC-specific expression. The pseudocolor scale represents the gene expression level that has been transformed to the log2-based ratio to the average signal of all genes extracted
Unsupervised hierarchical clustering of the normal human tissues based on the variation of miRNA expression correlates with the anatomical locations and physiological functions of the tissues
<p><b>Copyright information:</b></p><p>Taken from "Characterization of microRNA expression profiles in normal human tissues"</p><p>http://www.biomedcentral.com/1471-2164/8/166</p><p>BMC Genomics 2007;8():166-166.</p><p>Published online 12 Jun 2007</p><p>PMCID:PMC1904203.</p><p></p> Normalized Cfor each assay was transformed into ΔCagainst the average Cof all assays examined and clustered after mean-centering the data for each miRNA but no centering was done for the tissues. A detailed view of the clustering patterns of normal tissues is on the right. The blue bar on the left side of the heat map represented the group of miRNAs primarily expressed in placenta, and the red bar indicated the miRNAs with significant increased expression in epithelial tissues including the gastrointestinal organs. A pseudocolor scale bar represented the fold change relative to the mean of the data for each miRNA
The abundance of miRNAs in all tissues represented by the estimated average copy numbers of all miRNAs examined, as well as by the average copy numbers of miRNAs in each of the eight most differentially expressed groups
<p><b>Copyright information:</b></p><p>Taken from "Characterization of microRNA expression profiles in normal human tissues"</p><p>http://www.biomedcentral.com/1471-2164/8/166</p><p>BMC Genomics 2007;8():166-166.</p><p>Published online 12 Jun 2007</p><p>PMCID:PMC1904203.</p><p></p> Y-axis is the estimated copy number per cell (assuming 30 pg of total RNA in each cell), and the order of normal tissues at the X-axis is arranged by the clustering patterns shown in the Figure 3
Fabrication of Adjustable Au/Carbon Hybrid Nanozymes with Photothermally Enhanced Peroxidase Activity and Ultra-sensitivity for Glutathione Detection
Au
nanozymes are extensively researched for their photothermal
effect and catalytic performance, but overcoming the inherent defects
of poor dispersibility and thermal stability through complementary
materials will expand their prospects for biological applications.
Herein, several novel CAu nanozymes were fabricated by in situ reduction
of chloroauric acid on hollow carbon nanospheres (HCNs). Through regulating
the number of reductions, sesame ball-shaped CAu (sCAu) with highly
dispersed Au nanoparticles and diversity-shaped CAu (dCAu) were obtained.
The number and morphology of loaded Au nanoparticles, absorption spectra,
and hydrophilicity of CAu nanozymes were systematically characterized
to demonstrate the flexibility of this novel method. The high-efficiency
peroxidase-like sCAu0.3 nanozyme with hyperthermia-activated property
was then screened for later bio-application. It is worth mentioning
that its photothermal-promoted peroxidase-like activity could be achieved
under near-infrared laser irradiation. Moreover, sCAu0.3 could specifically
achieve glutathione detection in human blood samples. This method
will provide a protocol for the regulation of CAu nanozymes to adapt
to bio-detection applications
Boosting Electrocatalytic Hydrogen-Evolving Activity of Co/CoO Heterostructured Nanosheets via Coupling Photogenerated Carriers with Photothermy
Electrocatalytic
hydrogen evolution from water splitting holds
great promise for renewable energy conversion and usage, but its application
is limited by high energy consumption. The development of a facile
strategy to efficiently improve the efficiency of energy conversion
and the sluggish reaction kinetics using low-cost and stable electrocatalysts
is crucial but still highly challenging. Recently, light irradiation
is demonstrated to be an efficient external driving force for improving
the hydrogen evolution reaction (HER) activities of electrocatalysts.
The enhancement of activities arise from either light-excited hot
electrons/carriers or photothermy, while the integrating of two action
mechanisms is rarely reported. Herein, we present a synergetic effect
between light-excited carriers and photothermy to enhance electrocatalytic
HER activities of a Co/CoO heterostructured ultrathin nanosheet array
supported on Ni foam (denoted as Co/CoO-NF). After exposure to light
irradiation, the overpotential at 10 mA cm<sup>–2</sup> decreased
from 232 mV (dark) to 140 mV (light), and the Tafel slope decreased
from 151 mV dec<sup>–1</sup> (dark) to 85 mV dec<sup>–1</sup> (light) for Co/CoO-NF. The coupling effect between photogenerated
carriers and photothermy is demonstrated for the improvement of electrocatalytic
activities through a series of characterizations, revealing a new
avenue for developing a novel electrocatalytic system with high efficiency
of energy conversion
Noncontact Synergistic Effect between Au Nanoparticles and the Fe<sub>2</sub>O<sub>3</sub> Spindle Inside a Mesoporous Silica Shell as Studied by the Fenton-like Reaction
An Au-Fe<sub>2</sub>O<sub>3</sub>@mesoporous SiO<sub>2</sub> nanoreactor with a multiyolks/shell structure
was synthesized through a multistep method. In this nanoreactor, the
spindle Fe<sub>2</sub>O<sub>3</sub> and Au nanoparticles were inside
the same mesoporous SiO<sub>2</sub> shell as the yolks but in a noncontact
manner. The noncontact synergistic effect between Au nanoparticles
and the Fe<sub>2</sub>O<sub>3</sub> spindle was studied with a Fenton-like
reaction. The catalytic activity of the Au-Fe<sub>2</sub>O<sub>3</sub>@mesoporous SiO<sub>2</sub> nanoreactor to the Fenton-like reaction
for the degradation of organic dyes was dramatically enhanced by the
noncontact synergistic effect
Additional file 1 of UCHL1 contributes to insensitivity to endocrine therapy in triple-negative breast cancer by deubiquitinating and stabilizing KLF5
Supplementary Material
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