18 research outputs found
EFFECTS OF SPECIFIC MUSCLE IMBALANCE IMPROVEMENT TRAINING ON THE BALANCE ABILITY IN ELITE FENCERS
The purpose of this study was to investigate the effects of specific muscle imbalance improvement training (SMIIT) on the balance ability. Subjects were 9 male national team fencers with 28.2±2.2 yrs, 182.3±4.0 cm, and 76.5±8.2 kg. The SMIIT included flexibility training, Pilates, muscle balance training and was conducted for 12 weeks with 4 times per week. As a result, there was no significant difference in COM dispersion among static balance maintaining abilities, but reduction in the COP dispersion was shown. In conclusion, SMIIT seemed to affect in improving dynamic balance maintaining abilities especially in non-dominant leg
Mucociliary differentiation according to time in human nasal epithelial cell culture
Knowledge of the state of differentiation, cell phenotype, and expression of genes for mucus production at the time of study is important because these may vary at different times during the culture period. The primary purpose of this study was to determine whether the number of ciliated cells increases as a function of differentiation in NHNE cells. If we observed an increase in the number of ciliated cells, the composition ratio of ciliated and secretory cells according to the culture duration was determined. The levels of mucin and lysozyme secretion and their gene expression at this time were also examined. The presence of ciliated cells was not evident up to 2 days after confluence. However, 3.1 ± 0.2%, 7.4 ± 0.5%, and 14.5 ± 0.6% of the cells were ciliated on the 7th, the 14th, and the 28th day after confluence, respectively. Meanwhile, the percentage of secretory cells were 35.6 ± 2.8%, 32.8 ± 2.5%, 32.8 ± 2.5%, and 49.4 ± 1.4% on the 2nd, the 7th, 14th, and 28th day after confluence. The amount of secreted mucin showed an abruptly increasing pattern by the 14th day after confluence but showed no significant changes thereafter. The amount of secreted lysozyme increased as a function of differentiation. MUC5AC and MUC5B mRNA were mainly expressed between the 7th and the 14th day after confluence with relatively weak MUC8 and lysozyme expression. By the 28th day after confluence however, as the MUC5AC mRNA expression became weaker, MUC5B, MUC8, and lysozyme mRNA expression became stronger. In conclusion, we speculate that in in vitro studies with NHNE cells, the time point of treatment should vary according to the purpose of the study. In addition, the MUC5B and MUC8 gene may play an important role in mucin secretion in fully differentiated human nasal epithelial cells.N
Synergistic effects of dual nano-type electrode of NiCo-nanowire/NiMn-nanosheet for high-energy supercapacitors
A unique three-dimensional hybrid NiCo(CO3)(OH)(2) nanowire/NiMn(CO3)(OH)(2) nanosheet composite was fabricated using a facile hydrothermal method as a binder-free electrode directly grown on Ni foam for supercapacitors. We examined the synergistic effect by fabricating Ni-Co-Mn ternary electrodes that used Ni-Co with a large specific surface area and Mn with a very high theoretical capacity. The new hybrid electrode had good electrochemical characteristics, exhibiting remarkably high specific capacitances of 1673.3 and 453.0 Fg(-1) at 3 and 15 Ag-1, respectively. Compared with other samples, the capacitance showed less reduction as the current density increased. This result indicates stable electrode properties with increasing voltage. The cycling stability of the hybrid NiCo(CO3)(OH)(2)/NiMn(CO3)(OH)(2) composite was measured as 82.1% after 5000 cycles. Additionally, we fabricated an asymmetric supercapacitor employing the NiCo(CO3)(OH)(2)/NiMn(CO3)(OH)(2) composite as the positive electrode and graphene as the negative electrode, which exhibited a high energy density of 27.2 W h kg(-1) at a power density of 702.7 W kg(-1) and a remarkable cycling stability, with 89.4% capacitance retention after 5000 cycles. Thus, for the first time, we investigated the dual nano-type structure of an NiCo(CO3)(OH)(2) nanowire/NiMn(CO3)(OH)(2) nanosheet electrode for supercapacitors and obtained satisfactory results. (C) 2019 Elsevier B.V. All rights reserved
Cellulose nanocrystals coated with a tannic acid-Fe3+ complex as a significant medium for efficient CH4 microbial biotransformation
Microbial biotransformation of CH4 gas has been attractive for the production of energy and high-value chemicals. However, insufficient supply of CH4 in a culture medium needs to be overcome for the efficient utilization of CH4. Here, we utilized cellulose nanocrystals coated with a tannic acid-Fe3+ complex (TA-Fe3+CNCs) as a medium component to enhance the gas-liquid mass-transfer performance. TA-Fe3+CNCs were well suspended in water without agglomeration, stabilized gas bubbles without coalescence, and increased the gas solubility by 20 % and the k(L)(a) value at a rapid inlet gas flow rate. Remarkably, the cell growth rate of Methylomonas sp. DH-1 as model CH4-utilizing bacteria improved with TA-Fe3+CNC concentration without any cytotoxic or antibacterial properties, resulting in higher metabolite production ability such as methanol, pyruvate, formate, and succinate. These results showed that TA-Fe3+CNCs could be utilized as a significant component in the culture medium applicable as a promising nanofluid for efficient CH4 microbial biotransformation.11Nsciescopu
http://jurolsurgery.org/article_7433/Suture-Related-Iatrogenic-Bladder-Stone
Treatment for benign prostatic enlargement (BPE) should involve adequate and steady control of lower urinary tract symptoms (LUTS). TURP has gained enormous
popularity over the past years, and this surgical treatment of BPE improves bothvoiding and storage symptoms. However, a large proportion of patients complain
of persistent storage symptoms following TURP. Although TURP could relieve storage symptoms, there is a definite limitation on the clear satisfaction of symptom
improvement, and clinicians should consider whether early use of medications such as anticholinergics could help in the treatment of storage symptoms. In this
study, authors tried to investigate the association betweenvarious preoperative clinical parameters and remaining postoperative storage symptoms following
TURP. From this analysis, they aimed to clarify valuable prognostic factors regarding the persistence of storagerelated symptoms following BPE-related surgery. In
study all patients completed the International Prostate Symptom Score (IPSS) with a subscore for storage symptoms (questions 2, 4 and 7). Patients underwent
the following basic clinical evaluations: prostate volume estimated by transrectal ultrasound, functional bladder capacity (FBC) and voiding frequency per day
urodynamics were also assessed, including Q max (maximum flow rate), postvoid residual urine estimated by ultrasound, maximum cystometric capacity, detrusor
pressure at maximum flow (Pdet Q max) and Abrams-Griffith number (Pdet Q max- 2 × Q max). In this study, initial storage symptom score, age, FBC and BCI
were identified as independent predictors for an improvement in storage symptoms. The authors concluded that Positive and consistent correlations between the
baseline degree of worse initial storage symptoms, bladder capacity, detrusor contractility and age and the improvement in storage symptoms were observed
Airway epithelial CD47 plays a critical role in inducing influenza virus-mediated bacterial super-infection
Respiratory viral infection increases host susceptibility to secondary bacterial infections, yet the precise dynamics within airway epithelia remain elusive. Here, we elucidate the pivotal role of CD47 in the airway epithelium during bacterial super-infection. We demonstrated that upon influenza virus infection, CD47 expression was upregulated and localized on the apical surface of ciliated cells within primary human nasal or bronchial epithelial cells. This induced CD47 exposure provided attachment sites for Staphylococcus aureus, thereby compromising the epithelial barrier integrity. Through bacterial adhesion assays and in vitro pull-down assays, we identified fibronectin-binding proteins (FnBP) of S. aureus as a key component that binds to CD47. Furthermore, we found that ciliated cell-specific CD47 deficiency or neutralizing antibody-mediated CD47 inactivation enhanced in vivo survival rates. These findings suggest that interfering with the interaction between airway epithelial CD47 and pathogenic bacterial FnBP holds promise for alleviating the adverse effects of super-infection.Y
Development of the fast steering secondary mirror assembly of GMT
The Giant Magellan Telescope (GMT) will be featured with two Gregorian secondary mirrors, an adaptive secondary mirror (ASM) and a fast-steering secondary mirror (FSM). The FSM has an effective diameter of 3.2 m and built as seven 1.1 m diameter circular segments, which are conjugated 1:1 to the seven 8.4m segments of the primary. Each FSM segment contains a tip-tilt capability for fine co-alignment of the telescope subapertures and fast guiding to attenuate telescope wind shake and mount control jitter. This tip-tilt capability thus enhances performance of the telescope in the seeing limited observation mode. As the first stage of the FSM development, Phase 0 study was conducted to develop a program plan detailing the design and manufacturing process for the seven FSM segments. The FSM development plan has been matured through an internal review by the GMTO-KASI team in May 2016 and fully assessed by an external review in June 2016. In this paper, we present the technical aspects of the FSM development plan.SPIE grants to authors of papers published in an SPIE Journal or Proceedings the right to post an author-prepared version or an official version (preferred version) of the published paper on an internal or external server controlled exclusively by the author/employer, provided that (a) such posting is noncommercial in nature and the paper is made available to users without charge; (b) an appropriate copyright notice and full citation appear with the paper, and (c) a link to SPIE's official online version of the abstract is provided using the DOI (Document Object Identifier) link.This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]