464 research outputs found
Epicardial adipose tissue thickness assessed by cardiac magnetic resonance is an independent indicator for coronary artery stenosis in asymptomatic type 2 diabetic patients
Observation and analysis of low temperature leak characteristics of the O-ring for hydrogen electric vehicles
Please click Additional Files below to see the full abstrac
Effects of Concentration Training with Brainwave Biofeedback on Tennis Performance
2001This article presents evidence of effectiveness of 12-week concentration training program
with brainwave biofeedback on concentration ability and tennis performance. Eight male
tennis players were divided into two groups (Experimental and Control). Experimental
group (n = 4) completed a series of training program using the Q-Jump computer
system. Experimental task was one-set tennis singles with no-ad scoring system. The
participants responded to the Korean version of the Test of Attentional and Interpersonal
Style (TAIS) before and after the experiment. The results revealed that the concentration
training program (a) was effective in improving concentration intensity and duration, (b)
led to significant impact on attentional style, and (c) helped to improve tennis
performance. Correlational analyses revealed negative relationships between concentration
indices and unforced errors. Overall, these findings suggest that concentration is critical
mental skill in tennis and can be improved through systematic training program
Aortic Dissection Presenting with Secondary Pulmonary Hypertension Caused by Compression of the Pulmonary Artery by Dissecting Hematoma: A Case Report
The rupture of an acute dissection of the ascending aorta into the space surrounding the pulmonary artery is an uncommon occurrence. No previous cases of transient pulmonary hypertension caused by a hematoma surrounding the pulmonary artery have been documented in the literature. Herein, we report a case of acute aortic dissection presenting as secondary pulmonary hypertension
Observation of the orbital Hall effect in a light metal Ti
The orbital angular momentum is a core ingredient of orbital magnetism, spin
Hall effect, giant Rashba spin splitting, orbital Edelstein effect, and
spin-orbit torque. However, its experimental detection is tricky. In
particular, direct detection of the orbital Hall effect remains elusive despite
its importance for electrical control of magnetic nanodevices. Here we report
the direct observation of the orbital Hall effect in a light metal Ti. The Kerr
rotation by the accumulated orbital magnetic moment is measured at Ti surfaces,
whose result agrees with theoretical calculations semiquantitatively and is
supported by the orbital torque measurement in Ti-based magnetic
heterostructures. The results confirm the electron orbital angular momentum as
an essential dynamic degree of freedom, which may provide a novel mechanism for
the electric control of magnetism. The results may also deepen the
understanding of spin, valley, phonon, and magnon dynamics coupled with orbital
dynamics
Hu.4-1BB-Fc fusion protein inhibits allergic inflammation and airway hyperresponsiveness in a murine model of asthma
Purpose4-1BB (CD 137) is a costimulatory molecule expressed on activated T-cells. Repression by 4-1BB is thought to attenuate Th2-mediated allergic reactions. The aim of this study was to investigate the effect of 4-1BB on allergic airway inflammation in a murine asthma model.MethodsBALB/c mice were sensitized to and challenged with ovalbumin (OVA). Hu.4-1BB-Fc was administered 1 day before the first OVA sensitization or 1 day after the second OVA sensitization. Following antigen challenge, airway responsiveness to methacholine was assessed and bronchoalveolar lavage (BAL) fluid was analyzed. Total immunoglobulin (Ig) E, OVA-specific IgE, IgG1, and IgG2a levels in sera were measured by enzyme-linked immunosorbent assay. Lung pathology was also evaluated.ResultsIn mice treated with Hu.4-1BB-Fc before the first OVA sensitization, there was a marked decrease in airway hyperresponsiveness, total cell count, and eosinophil count in the BAL fluid. In addition, Hu.4-1BB-Fc treatment decreased serum OVA-specific IgG1 levels and increased serum IgG2a level significantly compared with the corresponding levels in mice sensitized to and challenged with OVA. Hu.4-1BB-Fc-treated mice also showed suppressed peribronchial and perivascular inflammatory cell infiltration. In contrast, treatment with Hu.4-1BB-Fc 1 day after sensitization had no effect on airway hyperresponsiveness and showed less suppression of inflammation in lung tissue.ConclusionAdministration of Hu.4-1BB-Fc can attenuate airway inflammation and hyperreactivity in a mouse model of allergic airway inflammation. In addition, administration before sensitization may be more effective. These findings suggest that 4-1BB may be a useful therapeutic molecule against asthma
An ultra-high-density bin map facilitates high-throughput QTL mapping of horticultural traits in pepper (Capsicum annuum)
Most agricultural traits are controlled by quantitative trait loci (QTLs); however, there are few studies on QTL mapping of horticultural traits in pepper (Capsicum spp.) due to the lack of high-density molecular maps and the sequence information. In this study, an ultra-high-density map and 120 recombinant inbred lines (RILs) derived from a cross between C. annuum 'Perennial' and C. annuum 'Dempsey' were used for QTL mapping of horticultural traits. Parental lines and RILs were resequenced at 18x and 1x coverage, respectively. Using a sliding window approach, an ultra-high-density bin map containing 2,578 bins was constructed. The total map length of the map was 1,372 cM, and the average interval between bins was 0.53 cM. A total of 86 significant QTLs controlling 17 horticultural traits were detected. Among these, 32 QTLs controlling 13 traits were major QTLs. Our research shows that the construction of bin maps using low-coverage sequence is a powerful method for QTL mapping, and that the short intervals between bins are helpful for fine-mapping of QTLs. Furthermore, bin maps can be used to improve the quality of reference genomes by elucidating the genetic order of unordered regions and anchoring unassigned scaffolds to linkage groups.OAIID:RECH_ACHV_DSTSH_NO:T201625248RECH_ACHV_FG:RR00200001ADJUST_YN:EMP_ID:A076900CITE_RATE:5.267FILENAME:DNA research(2016) An ultra high density bin map facilitates high throughput QTL mapping in pepper.pdfDEPT_NM:식물생산과학부EMAIL:[email protected]_YN:YFILEURL:https://srnd.snu.ac.kr/eXrepEIR/fws/file/56a2d8bc-c985-47f7-a01c-70d1a2f88513/linkCONFIRM:
Using standardized patients versus video cases for representing clinical problems in problem-based learning
- …