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https://www.readbyqxmd.com/read/27906245/electro-optic-modulator-with-ultra-low-residual-amplitude-modulation-for-frequency-modulation-and-laser-stabilization
#1
Zhaoyang Tai, Lulu Yan, Yanyan Zhang, Xiaofei Zhang, Wenge Guo, Shougang Zhang, Haifeng Jiang
The reduction of the residual amplitude modulation (RAM) induced by electro-optic modulation is essential for many applications of frequency modulation spectroscopy requiring a lower system noise floor. Here, we demonstrate a simple passive approach employing an electro-optic modulator (EOM) cut at Brewster's angle. The proposed EOM exhibits a RAM of a few parts per million, which is comparable with that achieved by a common EOM under critical active temperature and bias voltage controls. The frequency instability of a 10 cm cavity-stabilized laser induced by the RAM effect of the proposed EOM is below 3×10<sup>-17</sup> for integration times from 1 to 1000 s, and below 4×10<sup>-16</sup> for comprehensive noise contributions for integration times from 1 to 100 s...
December 1, 2016: Optics Letters
https://www.readbyqxmd.com/read/27905203/efficacy-and-toxicity-of-the-combination-chemotherapy-of-thalidomide-alkylating-agent-and-steroid-for-relapsed-refractory-myeloma-patients-a-report-from-the-korean-multiple-myeloma-working-party-kmmwp-retrospective-study
#2
Jihyun Kwon, Chang-Ki Min, Kihyun Kim, Jae-Joon Han, Joon Ho Moon, Hye Jin Kang, Hyeon-Seok Eom, Min Kyoung Kim, Hyo Jung Kim, Dok Hyun Yoon, Jeong-Ok Lee, Won Sik Lee, Jae Hoon Lee, Je-Jung Lee, Yoon-Seok Choi, Sung Hyun Kim, Sung-Soo Yoon
We analyzed the treatment responses, toxicities, and survival outcomes of patients with relapsed or refractory multiple myeloma who received daily thalidomide, cyclophosphamide, and dexamethasone (CTD) or daily thalidomide, melphalan, and prednisolone (MTP) at 17 medical centers in Korea. Three-hundred and seventy-six patients were enrolled. The combined chemotherapy of thalidomide, corticosteroid, and an alkylating agent (TAS) was second-line chemotherapy in 142 (37.8%) patients, and third-line chemotherapy in 135 (35...
December 1, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27895568/feasibility-of-a-mobile-cognitive-intervention-in-childhood-absence-epilepsy
#3
Peter Glynn, Soyong Eom, Frank Zelko, Sookyong Koh
Children with childhood absence epilepsy (CAE) frequently present with cognitive comorbidities and school performance concerns. The present study evaluated the feasibility of an intervention for such comorbidities using a mobile cognitive therapy application on an iPad. Eight children with CAE and school concerns aged 7-11 participated in a 4-week intervention. They were asked to use the application for 80 min per week (20 min/day, 4 times/week). Parents and children completed satisfaction surveys regarding the application...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27893855/inhibition-of-matrix-metalloproteinase-9-enhances-rod-survival-in-the-s334ter-line3-retinitis-pigmentosa-model
#4
Jung-A Shin, Hwa Sun Kim, Andrew Vargas, Wan-Qing Yu, Yun Sung Eom, Cheryl Mae Craft, Eun-Jin Lee
Retinitis Pigmentosa (RP) is one of the most common forms of inherited visual loss with the initial degeneration of rod photoreceptors, followed by a progressive cone photoreceptor deterioration. Coinciding with this visual loss, the extracellular matrix (ECM) is reorganized, which alters matrix metalloproteinase (MMP) activity levels. A potential pathological role of MMPs, MMP-9 in particular, involves an excitotoxicity-mediated physiological response. In the current study, we examine the MMP-9 and MMP-2 expression levels in the rhodopsin S334ter-line3 RP rat model and investigate the impact of treatment with SB-3CT, a specific MMP-9 and MMP-2 inhibitor, on rod cell survival was tested...
2016: PloS One
https://www.readbyqxmd.com/read/27892952/dynamic-prognostic-value-of-the-revised-international-prognostic-scoring-system-following-pretransplant-hypomethylating-treatment-in-myelodysplastic-syndrome
#5
S-A Yahng, Y-W Jeon, J-H Yoon, S-H Shin, S-E Lee, Y-S Choi, D-Y Kim, J-H Lee, B-S Cho, K-S Eom, S Lee, C-K Min, H-J Kim, J-W Lee, K-H Lee, W-S Min, J-H Lee, Y-J Kim
This study aimed to analyze the use of the revised International Prognostic Scoring System (IPSS-R) assessed after hypomethylating treatment (HMT) for patients with myelodysplastic syndrome (MDS) undergoing an allogeneic stem cell transplantation (SCT). Among 115 patients who received pre-SCT HMT, comparison analysis of the prognostic values between the IPSS-R at the time of HMT (IPSS-R@HMT) and at the time of SCT after HMT (IPSS-R@SCT) showed a significantly higher predictive power for overall survival (OS) of the latter...
November 28, 2016: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/27891095/differential-rna-expression-profile-of-skeletal-muscle-induced-by-experimental-autoimmune-myasthenia-gravis-in-rats
#6
Henry J Kaminski, Keiichi Himuro, Jumana Alshaikh, Bendi Gong, Georgiana Cheng, Linda L Kusner
The differential susceptibility of skeletal muscle by myasthenia gravis (MG) is not well understood. We utilized RNA expression profiling of extraocular muscle (EOM), diaphragm (DIA), and extensor digitorum (EDL) of rats with experimental autoimmune MG (EAMG) to evaluate the hypothesis that muscles respond differentially to injury produced by EAMG. EAMG was induced in female Lewis rats by immunization with acetylcholine receptor purified from the electric organ of the Torpedo. Six weeks later after rats had developed weakness and serum antibodies directed against the AChR, animals underwent euthanasia and RNA profiling performed on DIA, EDL, and EOM...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27889658/chlorella-vulgaris-cultivation-in-sludge-extracts-from-2-4-6-tcp-wastewater-treatment-for-toxicity-removal-and-utilization
#7
Lu Wang, Xiurong Chen, Hualin Wang, Yuying Zhang, Qingjie Tang, Jiahui Li
Chlorella vulgaris was cultivated in different proportions of activated sludge extracts, which was from the treatment of the synthetic wastewater containing 2,4,6-trichlorophenol (2,4,6-TCP). The nutrients, total nitrogen (TN) and total phosphorus (TP), were removed over 45% and 90%, respectively. The maximum reduction amount of ecotoxicity and total organic carbon (TOC) occurred in the 100% sludge group on the 8th day (68%; 86.2 mg L(-1)). The variations of Excitation-emission matrix spectra (EEMs) and TOC indicated that extracellular organic matters (EOM) produced by algae led to TOC increase in the medium...
November 24, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27879993/randomized-clinical-trial-of-preoperative-skin-antisepsis-with-chlorhexidine-gluconate-or-povidone-iodine
#8
H M Park, S-S Han, E C Lee, S D Lee, H M Yoon, B W Eom, S H Kim, K W Ryu, S-J Park, Y W Kim, B Park
BACKGROUND: Skin antiseptic agents are used to prevent surgical-site infection (SSI); few trials have reported the superiority of any specific agent in clean-contaminated abdominal surgery. This RCT was designed to compare the effectiveness of chlorhexidine gluconate and povidone-iodine. METHODS: Consecutive patients who underwent clean-contaminated upper gastrointestinal or hepatobiliary-pancreatic open surgery between 2011 and 2014 were assigned randomly to either chlorhexidine gluconate or povidone-iodine...
November 23, 2016: British Journal of Surgery
https://www.readbyqxmd.com/read/27877867/electrical-and-photo-electrical-properties-of-mos2-nanosheets-with-and-without-an-al2o3-capping-layer-under-various-environmental-conditions
#9
Muhammad Farooq Khan, Ghazanfar Nazir, Volodymyr M Lermolenko, Jonghwa Eom
The electrical and photo-electrical properties of exfoliated MoS2 were investigated in the dark and in the presence of deep ultraviolet (DUV) light under various environmental conditions (vacuum, N2 gas, air, and O2 gas). We examined the effects of environmental gases on MoS2 flakes in the dark and after DUV illumination through Raman spectroscopy and found that DUV light induced red and blue shifts of peaks (E(1)2 g and A1 g) position in the presence of N2 and O2 gases, respectively. In the dark, the threshold voltage in the transfer characteristics of few-layer (FL) MoS2 field-effect transistors (FETs) remained almost the same in vacuum and N2 gas but shifted toward positive gate voltages in air or O2 gas because of the adsorption of oxygen atoms/molecules on the MoS2 surface...
2016: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/27875625/clinical-and-genetic-determinants-of-ovarian-metastases-from-colorectal-cancer
#10
Karuna Ganesh, Ronak H Shah, Efsevia Vakiani, Garrett M Nash, Hugh P Skottowe, Rona Yaeger, Andrea Cercek, Anne Lincoln, Christina Tran, Neil H Segal, Diane L Reidy, Anna Varghese, Andrew S Epstein, Yukio Sonoda, Dennis Chi, Jose Guillem, Larissa Temple, Philip Paty, Jaclyn Hechtman, Jinru Shia, Martin Weiser, Julio Garcia Aguilar, Nancy Kemeny, Michael F Berger, Leonard Saltz, Zsofia K Stadler
BACKGROUND: Ovarian metastases from colorectal cancer (OM-CRC) often are unresponsive to chemotherapy and are associated with poor survival. To the authors' knowledge, the clinicopathologic and genomic predictors of OM-CRC are poorly characterized and optimal clinical management remains unclear. METHODS: Women with a histopathological diagnosis of OM-CRC who were treated at Memorial Sloan Kettering Cancer Center from 1999 to 2015 were identified. Next-generation somatic mutation profiling (Memorial Sloan Kettering-Integrated Mutation Profiling of Actionable Cancer Targets [MSK-IMPACT]) was performed on 38 OM-CRC cases, including 21 matched tumor pairs/trios...
November 22, 2016: Cancer
https://www.readbyqxmd.com/read/27874896/unusual-acid-base-properties-of-the-p4-molecule-in-hydrogen-halogen-and-pnicogen-bonded-complexes
#11
Ibon Alkorta, José Elguero, Janet E Del Bene
Ab initio MP2/aug'-cc-pVTZ calculations have been carried out to investigate hydrogen bonding, halogen bonding, and pnicogen bonding involving tetrahedral P4 and the FH, ClH, and FCl molecules. P4 has three unique interaction sites: at a vertex (designated the P1 atom); at an edge (the P2-P3 bond); and at the P2-P3-P4 face. The uniqueness of molecular P4 is its ability to act as an electron donor and an electron acceptor at the same site, except for the P2-P3 bond, which is only an electron donor. FCl and FH form five different complexes with P4, but ClH forms only three...
November 30, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27872625/effect-of-cmv-and-aging-on-the-differential-expression-of-cd300a-cd161-t-bet-and-eomes-on-nk-cell-subsets
#12
Nelson Lopez-Sejas, Carmen Campos, Fakhri Hassouneh, Beatriz Sanchez-Correa, Raquel Tarazona, Alejandra Pera, Rafael Solana
Natural killer (NK) cells are innate lymphoid cells involved in the defense against virus-infected cells and tumor cells. NK cell phenotype and function is affected with age and cytomegalovirus (CMV) latent infection. Aging affects the frequency and phenotype of NK cells, and CMV infection also contributes to these alterations. Thus, a reduction of CD56(bright) NK cell subpopulation associated with age and an expansion of memory-like NK cells CD56(dim)CD57(+)NKG2C(+) probably related to CMV seropositivity have been described...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27866477/cross-reactivity-of-the-31-kda-antigen-of-angiostrongylus-cantonensis-dealing-with-the-immunodiagnosis-of-meningoencephalitis
#13
Alessandra L Morassutti, Lisa N Rascoe, Sukwan Handali, Alexandre J DA Silva, Patricia P Wilkins, Carlos Graeff-Teixeira
The primary causative agent of eosinophilic meningoencephalitis (EoM) in endemic regions is the nematode Angiostrongylus cantonensis. The occurrence of EoM was previously restricted to countries in Southeast Asia and the Pacific Islands; however, more recently, it has been reported from other regions, including Brazil. The commonly used diagnosis is detection of specific antibody reactivity to the 31 kDa antigen, which is derived from female worm somatic extracts. Here we report the occurrence of cross-reactivity to this antigen in sera from other parasitic infections, especially those that may cause EoM, such as gnathostomiasis, toxocariasis, hydatidosis and strongyloidiasis...
November 21, 2016: Parasitology
https://www.readbyqxmd.com/read/27864779/activity-of-novel-inhibitors-of-staphylococcus-aureus-biofilms
#14
Seung-Gyun Woo, So-Yeon Lee, So-Min Lee, Kyoung-Hee Lim, Eun-Ju Ha, Yong-Bin Eom
Staphylococcus aureus is one of the most important pathogens causing chronic biofilm infections. These are becoming more difficult to treat owing to drug resistance, particularly because S. aureus biofilms limit the efficacy of antimicrobial agents, leading to high morbidity and mortality. In the present study, we screened for inhibitors of S. aureus biofilm formation using a natural product library from the Korea Chemical Bank (KCB). Screening by crystal violet-based biomass staining assay identified hit compounds...
November 18, 2016: Folia Microbiologica
https://www.readbyqxmd.com/read/27864418/ampk-ulk1-mediated-autophagy-confers-resistance-to-bet-inhibitor-jq1-in-acute-myeloid-leukemia-stem-cells
#15
Ji Eun Jang, Ju In Eom, Hoi Kyung Jeung, June-Won Cheong, Jung Yeon Lee, Jin Seok Kim, Yoo Hong Min
PURPOSE: Bromodomain and extraterminal domain (BET) inhibitors are promising epigenetic agents for the treatment of various subsets of acute myeloid leukemia (AML). However, the resistance of leukemia stem cells (LSCs) to BET inhibitors remains a major challenge. In this study, we evaluated the mechanisms underlying LSC resistance to the BET inhibitor JQ1. EXPERIMENTAL DESIGN: We evaluated the levels of apoptosis and autophagy induced by JQ1 in LSC-like leukemia cell lines and primary CD34(+)CD38(-) leukemic blasts obtained from AML cases with normal karyotype without recurrent mutations...
November 18, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27853125/canine-wound-myiasis-caused-by-lucilia-sericata-diptera-calliphoridae-in-korea
#16
Seongjun Choe, Dongmin Lee, Hansol Park, Hyeong-Kyu Jeon, Hakhyun Kim, Ji-Houn Kang, Cha-Ho Jee, Keeseon S Eom
Myiasis is a relatively common infection of animals kept as pets, although only 1 case of canine myiasis has been described so far in the Republic of Korea. In the present study, we report an additional case of canine wound myiasis with identification of its causative agent, Lucilia sericata. An 8-year-old male Siberian husky dog was referred with anorexia, vomiting, and diarrhea to the Chungbuk National University Veterinary Medical Center, Cheongju-si (city), Chungcheongbuk-do (province), Korea in July 2013...
October 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/27853124/a-case-of-chaunocephalosis-by-chaunocephalus-ferox-digenea-echinostomatidae-in-an-oriental-white-stork-ciconia-boyciana-in-korea
#17
Seongjun Choe, Dongmin Lee, Hansol Park, Hyeong-Kyu Jeon, Youngsun Lee, Ki-Jeong Na, Shi-Ryong Park, Keeseon S Eom
We intended to describe a case of chaunocephalosis and morphological characteristics of its causative agent, Chaunocephalus ferox, recovered from an oriental white stork, Ciconia boyciana, in the Republic of Korea. An oriental white stork was referred to the Wildlife Center of Chungbuk in Korea in February 2014 for severe depression with cachexia and it died the next day. At necropsy, the stomach was severely expanded and 7 thick-walled nodules were observed in the upper part of the intestine. Although the stomach was filled with full of foreign materials, the intestine was almost empty...
October 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/27853049/comparison-of-two-different-regimens-of-intravenous-methylprednisolone-for-patients-with-moderate-to-severe-and-active-graves-ophthalmopathy-a-prospective-randomized-controlled-trial
#18
Yebing He, Ketao Mu, Rong Liu, Jing Zhang, Nan Xiang
The intravenous methylprednisolone (iv MP) strategy for Graves' ophthalmopathy (GO) and evaluation of its activity against the disease warrants further exploration. A prospective randomized controlled trial for 3 months was performed in a tertiary referral teaching hospital to compare the efficacy and safety of two different regimens of iv MP, and determine the value of clinical activity score (CAS) and T2 relaxation time (T2RTs) and areas of extraocular muscles (EOMs) by magnetic resonance imaging for diagnosis of active GO...
November 16, 2016: Endocrine Journal
https://www.readbyqxmd.com/read/27846696/uv-excitations-of-halons
#19
Ljiljana Stojanović, Abdulrahman O Alyoubi, Saadullah G Aziz, Rifaat H Hilal, Mario Barbatti
In the present study, we examined the UV excitations of a newly introduced molecular set, Halons-9, composed of nine gaseous halon molecules. The performance of the density functional-based multi-reference configuration interaction method (DFT/MRCI) and time-dependent density functional theory with CAM-B3LYP functional (TD-CAM-B3LYP) in the computation of singlet and triplet excited states of this set was evaluated against coupled-cluster with singles and doubles (CCSD). Excited states up to the corresponding ionization limits, including both localized and delocalized excitations, have been benchmarked...
November 14, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27844093/fractional-anisotropy-and-diffusivity-changes-in-thyroid-associated-orbitopathy
#20
Ji Sung Han, Hyung Suk Seo, Young Hen Lee, Hwa Lee, Sang-Il Suh, Eun-Kee Jeong, Nabraj Sapkota, Ki Joon Kim
INTRODUCTION: To investigate the extraocular muscle (EOM) changes in thyroid-associated orbitopathy (TAO) on DTI and the correlations between DTI parameters and clinical features. METHODS: Twenty TAO patients and 20 age- and sex-matched controls provided informed consent and were enrolled. Ten-directional DTI was acquired in orbit. Fractional anisotropy (FA), mean, axial, and radial diffusivities were obtained at medial and lateral EOMs in both orbits. EOM thickness was measured in patients using axial CT images...
November 14, 2016: Neuroradiology
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