1,614 research outputs found
sj-docx-1-car-10.1177_19476035221085142 – Supplemental material for T2 Relaxation Time Changes in the Distal Femoral Condylar Cartilage of Children and Young Adults with Discoid Meniscus
No full textSupplemental material, sj-docx-1-car-10.1177_19476035221085142 for T2 Relaxation Time Changes in the Distal Femoral Condylar Cartilage of Children and Young Adults with Discoid Meniscus by Haesung Yoon, Hyun Ji Lim, Jisoo Kim, Kun-Bo Park, Hyun Woo Kim and Mi-Jung Lee in CARTILAGE</p
Performace of Small Stack for Intermediate Temperature-Operating Solid Oxide Fuel Cells using Stainless Steel Interconnects
No full textPolymer/carbon nanotube nanocomposites via noncovalent grafting with end‐functionalized polymers
No full textPolymer/carbon nanotube nanocomposites were fabricated with end-functionalized polymers as dispersants. End-functionalized polymers having amine or carboxylic acid were noncovalently grafted to multiwalled nanotubes (MWNTs). The functional groups of the polymers interacted with the defect sites of purified MWNTs through zwitterionic interactions or hydrogen bonding. This approach provided both an improved dispersion state of MWNTs in an organic solution and polymer matrix and good interfacial adhesion between MWNTs and a matrix. Physical properties, such as the electrical resistivity and mechanical strength, of polystyrene/MWNT nanocomposites were greatly improved through this simple noncovalent functionalization. (C) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 110: 2345-2351, 200
Basic characteristics of low temperature DC magnetized plasmas in a weakly collisional magnetic X-point configuration
No full textConstruction of a multi-dipole cylindrical chamber, MAXIMUS, with magnetic X-point configuration and investigation of its plasma properties
No full textDistinct functions of Nijmegen breakage syndrome in ataxia telangiectasia mutated-dependent responses to DNA damage
No full textPhosphorylation of NBS1, the product of the gene mutated in Nijmegen breakage syndrome (NBS), by ataxia telangiectasia mutated (ATM), the product of the gene mutated in ataxia telangiectasia, is required for activation of the S phase checkpoint in response to ionizing radiation (IR). However, NBS1 is also thought to play additional roles in the cellular response to DNA damage. To clarify these additional functions of NBS1, we generated NBS cell lines stably expressing various NBS1 mutants from retroviral vectors. The ATM-dependent activation of CHK2 by IR was defective in NBS cells but was restored by ectopic expression of wild-type NBS1. The defects in ATM-dependent activation of CHK2, S phase checkpoint control, IR-induced nuclear focus formation, and radiation sensitivity apparent in NBS cells were not corrected by expression of NBS1 mutants that lack an intact MRE11 binding domain, suggesting that formation of the NBS1-MRE11-RAD50 complex is required for the corresponding normal phenotypes. Expression of NBS1 proteins with mutated ATM-targeted phosphorylation sites (serines 278 or 343) did not restore S phase checkpoint control but did restore the ability of IR to activate CHK2 and to induce nuclear focus formation and normalized the radiation sensitivity of NBS cells. Expression of NBS1 containing mutations in the forkhead-associated or BRCA1 COOH terminus domains did not correct the defects in radiation sensitivity or nuclear focus formation but did restore S phase checkpoint control in NBS cells. Together, these data demonstrate that multiple functional domains of NBS1 are required for ATM-dependent activation of CHK2, nuclear focus formation, S phase checkpoint control, and cell survival after exposure to IR.KRF2001-015DS0058 from the Korea Research Foundation;
grant CA71387 from the National Cancer Institute; 21st Century Frontier
Functional Human Genome Project and Biomedical Research Program of
KISTEP (Ministry of Science and Technology of Korea
Supplemental material for The etiology of potential small-bowel bleeding depending on patient’s age and gender
No full textSupplemental Material for The etiology of potential small-bowel bleeding depending on patient’s age and gender by Joo Hye Song, Sung Noh Hong, Dong Kyung Chang, Seong Ran Jeon, Jin-Oh Kim, Jinsu Kim, Bo-In Lee, Myung-Gyu Choi, Kyeong Ok Kim, Dong-Hoon Yang, Hyun Joo Song, Jae Hyuk Do, Yun Jeong Lim, Ki-Nam Shim, Soo Jung Park, Ji Hyun Kim, Jeong Seop Moon, Hyun Joo Jang and Hoon Jai Chun in United European Gastroenterology Journal</p
ATSC 3.0 LDM/TDM performance comparison in fixed reception environment
No full textIn ATSC 3.0 physical layer standard, a layered division multiplexing (LDM) scheme has newly accepted as one of the multiplexing schemes in order to improve the reception performance when multiple broadcasting contents are simultaneously delivered through a single RF channel. This paper presents comparison results of LDM and time division multiplexing (TDM) schemes under fixed reception environments, and analyzes the performance gain of LDM over TDM. From the field test results, it was confirmed that the LDM gain in the theoretical analysis is still maintained in the actual field
Bone mineral density is an independent determinant of left ventricular mass index in the general female population
No full textBackground and Objectives: Left ventricular hypertrophy (LVH) is a well known cardiovascular prognostic predictor. Osteoporosis has been suggested to be associated with cardiovascular disease. According to studies of primary hyperparathyroidism, a pathophysiological association between calcium metabolism and LVH has been suggested but is not yet fully understood. This study was performed to investigate the association between bone mineral density (BMD) and left ventricular mass index (LVMI) in a general population. Subjects and Methods: Data from 460 subjects among 543 subjects sampled from a general population in a rural area in Korea were analyzed. BMD, echocardiography, brachial-ankle pulse wave velocity (baPWV), carotid intima-media thickness (IMT) measurement as well as the measurements of blood pressure, blood chemistry and metabolic parameters were analyzed. BMD was measured using the Sahara Clinical Bone Sonometer (Hologic Inc., Mass., USA). Results: Age of the subjects was 59.4��12.4 years. Males were 42.2% (n=194). In a simple correlation analysis on female subjects, age and waist circumference showed negative correlation, and body mass index (BMI) showed positive correlation with BMD. However, only age showed negative correlation with BMD in male subjects. After adjusting baPWV and carotid IMT, we found that BMD was an independent determinant of LVMI in female subjects (��=-13.703, p=0.016), but not in male subjects (��=-1.235, p=0.841). Conclusion: BMD is a consistent and independent determining factor of LVMI, BMI and carotid IMT in postmenopausal women. Copyright �� 2010 The Korean Society of Cardiology
Fabrication of three-dimensional SiC-based ceramic micropatterns using a sequential micromolding-and-pyrolysis process
No full textA sequential micromolding and pyrolysis process is presented for fabricating three-dimensional (313) SiGbased ceramic micropatterns with a submicron scale resolution using preceramic resins, which is a promising technique for diverse applications such as tribological micro-stamps of hot embossing. Firstly, a diffuser lithography process (DLP) and a two-photon polymerization (TPP) process have been employed to create master patterns, which are utilized in the fabrication of molds. In the DLP, various hemispheric-concave master shapes were built readily by exposing UV-light onto a thick positive photoresist film through a diffuser, which randomizes the paths of incident UV-light. Alternatively, the TPP process based on two-photon polymerization was used for the creation of real 3D master patterns with a two-photon sensitive resin mixture. Subsequently, the preceramic polymer micropatterns were fabricated via a micromolding process using polydimethylsiloxane (PDMS) molds replicated from the masters. Finally, the UV-cured preceramic micropatterns were transformed into SiGbased ceramic microstructures when pyrolyzed at 800 degrees C under inert atmosphere. (c) 2006 Elsevier B.V. All rights reserved
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