294 results on '"L C, Wang"'
Search Results
2. Switchable and high-efficiency phase-locking of S-band magnetrons with coaxial line
- Author
-
L. C. Wang, Y. Yin, Y. Qin, W. S. Hou, L. J. Bi, H. L. Li, B. Wang, and L. Meng
- Subjects
Physics ,QC1-999 - Abstract
We propose a coaxial line structure for phase-locking between magnetrons in the S-band for the first time. In this structure, two magnetrons operating in the π-mode are tightly coupled by the coaxial line. The design of a coaxial line structure, independent of physical dimensions, solves the problem of a ridge waveguide or rectangular waveguide being unsuitable for phase-locking in the compact S-band magnetron, as proposed by previous researchers. In addition, the phase relationship of the magnetron output signal in the phase-locked state can be switched between 0 and the π phase difference without changing the length of the coaxial line. Therefore, this design widens the frequency range used by mutual coupling phase-locked technology and allows switching of the phase relationship in an output signal without the need for additional equipment or physical space. After design simulation, two magnetrons achieved high-efficiency phase locking at a frequency of 2.415 GHz, with a phase-locked efficiency of 99.8%.
- Published
- 2024
- Full Text
- View/download PDF
3. Solubility of Ethyl Gallate in Six Single Solvents and Two Binary Solvents from 298.05 to 323.50 K
- Author
-
D. Li, L. C. Wang, and Z. Hu
- Subjects
Physical and Theoretical Chemistry - Published
- 2023
4. Controllable magnetic transitions and magnetocaloric effect of Ho1-xTmxNi (0≤x≤0.8) compounds
- Author
-
J. W. Xu, X. Q. Zheng, S. H. Shao, S. X. Yang, J. Y. Zhang, S. G. Wang, J. Liu, Y. L. Liu, Y. Zhang, Z. Y. Xu, L. C. Wang, and B. G. Shen
- Subjects
Physics ,QC1-999 - Abstract
Polycrystalline Ho1-xTmxNi (0≤x≤0.8) compounds were successfully prepared by an arc-melting method, and the crystal structure, magnetic properties and magnetocaloric effect (MCE) were investigated in detail. X-ray diffraction (XRD) results indicate that Ho1-xTmxNi (0≤x≤0.8) compounds are pure phases with FeB-type orthorhombic structure (space group Pnma). Magnetic measurements show that HoNi alloy undergoes a spin reorientation (SR) transition and a ferromagnetic (FM) to paramagnetic (PM) transition at 13.5 K and 35.5 K, respectively. Rare earth atoms Tm with small spin were used to substitute Ho atoms in HoNi compound in order to adjust the magnetic phase transitions and to further optimize the magnetocaloric effect (MCE). With increasing Tm content from 0 to 0.8, the refrigerant temperature span decreases from 41.6 K to 17.3 K. When the content of Tm is 0.3, a platform-shaped isothermal magnetic entropy change (-ΔSM) curve is obtained and the value of -ΔSM is relatively stable over 35 K. Our findings are of great importance for HoTmNi compounds in practical applications.
- Published
- 2020
- Full Text
- View/download PDF
5. The challenge and future of rocky desertification control in karst areas in southwest China
- Author
-
J. Y. Zhang, M. H. Dai, L. C. Wang, C. F. Zeng, and W. C. Su
- Subjects
Geology ,QE1-996.5 ,Stratigraphy ,QE640-699 - Abstract
Karst rocky desertification occurs after vegetation deteriorates as a result of intensive land use, which leads to severe water loss and soil erosion and exposes basement rocks, creating a rocky landscape. Karst rocky desertification is found in humid areas in southwest China, the region most seriously affected by rocky desertification in the world. In order to promote ecological restoration and help peasants out of poverty, the Chinese government carried out the first phase of a rocky desertification control project from 2006 to 2015, which initially contained the expansion of rocky desertification. Currently, the Chinese government is prepared to implement the second phase of the rocky desertification control project, and therefore it is essential to summarise the lessons learned over the last 10 years of the first phase. In this paper, we analyse the driving social and economic factors behind rocky desertification, summarise the scientific research on rocky desertification in the region, and finally identify the main problems facing rocky desertification control. In addition, we put forward several policy suggestions that take into account the perspective of local peasants, scientific research, and China's economic development and urbanisation process. These suggestions include promoting the non-agriculturalization of household livelihoods, improving ecological compensation, strengthening the evaluation of rocky desertification control and dynamic monitoring, and strengthening research on key ecological function recovery technologies and supporting technologies.
- Published
- 2016
- Full Text
- View/download PDF
6. Enhancement in Capacitance and Transconductance in 90 nm nFETs with HfO2-ZrO2 Superlattice Gate Stack for Energy-efficient Cryo-CMOS
- Author
-
W. Li, L. C. Wang, S. S. Cheema, N. Shanker, C. Hu, and S. Salahuddin
- Published
- 2022
7. Large magnetocaloric effect of NdGa compound due to successive magnetic transitions
- Author
-
X. Q. Zheng, J. W. Xu, S. H. Shao, H. Zhang, J. Y. Zhang, S. G. Wang, Z. Y. Xu, L. C. Wang, J. Chen, and B. G. Shen
- Subjects
Physics ,QC1-999 - Abstract
The magnetic behavior and MCE property of NdGa compound were studied in detail. According to the temperature dependence of magnetization (M-T) curve at 0.01 T, two sharp changes were observed at 20 K (TSR) and 42 K (TC), respectively, corresponding to spin reorientation and FM-PM transition. Isothermal magnetization curves up to 5 T at different temperatures were measured and magnetic entropy change (ΔSM) was calculated based on M-H data. Temperature dependences of –ΔSM for a field change of 0-2 T and 0-5 T show that there are two peaks on the curves corresponding to TSR and TC, respectively. The value of the two peaks is 6.4 J/kg K and 15.5 J/kg K for the field change of 0-5 T. Since the two peaks are close, the value of –ΔSM in the temperature range between TSR and TC keeps a large value. The excellent MCE performance of NdGa compound benefits from the existence of two successive magnetic transitions.
- Published
- 2018
- Full Text
- View/download PDF
8. Magnetic properties and magnetocaloric effect of HoCo3B2 compound
- Author
-
X. Q. Zheng, J. W. Xu, H. Zhang, J. Y. Zhang, S. G. Wang, Y. Zhang, Z. Y. Xu, L. C. Wang, and B. G. Shen
- Subjects
Physics ,QC1-999 - Abstract
A sample of HoCo3B2 compound was synthesized, and the magnetic and MCE properties were investigated. Compound shows a change corresponding to R-R (R = rare earth) sublattice magnetic order transition and the transition temperature is determined to be 11.8 K (TC). The characteristic of Arrott plots with positive slope around TC was observed, indicating a second-order phase transition. Based on isothermal magnetization data, together with Maxwell’s relationship, the magnetic entropy change (-ΔSM) was calculated. The maximum -ΔSM reaches 7.8, 12.7 and 14.4 J/kg K for field range of 0-2 T, 0-5 T and 0-7 T, respectively. Accordingly, the value of RC (refrigerant capacity) is 99, 289 and 432 J/kg for above field ranges. The large MCE of HoCo3B2 compound indicates its potential application for magnetic refrigeration in low temperature range.
- Published
- 2018
- Full Text
- View/download PDF
9. Effectiveness of preoperative decolonization with nasal povidone iodine in Chinese patients undergoing elective orthopedic surgery: a prospective cross-sectional study
- Author
-
H-M. Peng, L-C. Wang, J-L. Zhai, X-S. Weng, B. Feng, and W. Wang
- Subjects
Nasal methicillin-resistant ,Staphylococcus aureus ,Orthopedic surgery ,Nasal povidone iodine ,Prospective cross-sectional study ,Medicine (General) ,R5-920 ,Biology (General) ,QH301-705.5 - Abstract
Staphylococcus aureus colonization in the nares of patients undergoing elective orthopedic surgery increases the potential risk of surgical site infections. Methicillin-resistant S. aureus (MRSA) has gained recognition as a pathogen that is no longer only just a hospital-acquired pathogen. Patients positive for MRSA are associated with higher rates of morbidity and mortality following infection. MRSA is commonly found in the nares, and methicillin-sensitive S. aureus (MSSA) is even more prevalent. Recently, studies have determined that screening for this pathogen prior to surgery and diminishing staphylococcal infections at the surgical site will dramatically reduce surgical site infections. A nasal mupirocin treatment is shown to significantly reduce the colonization of the pathogen. However, this treatment is expensive and is currently not available in China. Thus, in this study, we first sought to determine the prevalence of MSSA/MSRA in patients undergoing elective orthopedic surgery in northern China, and then, we treated the positive patients with a nasal povidone-iodine swab. Here, we demonstrate a successful reduction in the colonization of S. aureus. We propose that this treatment could serve as a cost-effective means of eradicating this pathogen in patients undergoing elective orthopedic surgery, which might reduce the rate of surgical site infections.
- Published
- 2017
- Full Text
- View/download PDF
10. Biological characterization and evolution of a novel RNA silencing suppressor SWP16 from wheat blue dwarf (WBD) phytoplasma
- Author
-
X. A. Hao, Y. F. Wu, X. D. Zhang, L. C. Wang, Yanzhong Li, and Z. Q. Song
- Subjects
Genetics ,Oomycete ,Signal peptide ,Transmembrane domain ,RNA silencing ,Secretory protein ,biology ,Plant Science ,biology.organism_classification ,Homology (biology) ,Virus ,Protein tertiary structure - Abstract
RNA silencing is a general strategy for eukaryotes including plants to resist pathogens, especially virus. In turn, virus have evolved RNA silencing suppressors (RSSs) to overcome RNA silencing in plants. In following researches, bacterial, oomycete, fungi have been found to involve in RSS besides virus. In 2021, we initially identified a novel RSS SWP16 from 37 secretory proteins encoded by phytoplasma. In this research, we analyzed the molecular and biological characters of SWP16 including bioinformatics analysis, subcellular localization, effect of SWP16 on plant innate immunity and phylogenetic analysis of SWP16. The results showed that SWP16 is a novel secretory protein which contains an α helix tertiary structure, 5 threonine (T) phosphorylation sites, 2 threonine (S) phosphorylation sites. Furthermore, a Leucine-rich repetitive structure (LRR) was harbored in the transmembrane domain of signal peptide of SWP16, furthermore, a putative secreting model of SWP16 was constructed. In addition, SWP16 localized in nucleus and cytomembrane. In this research, SWP16 was also found not to involve in HR-PCD processes of plant, so it suggested that SWP16 may specifically interfere RNA silencing in plant. The phylogenetic analysis demonstrated that SWP16 was highly conserved in evolution and shared high homology with a homology protein in onion yellows phytoplasma.
- Published
- 2021
11. Influenza A plasma and serum virus antibody detection comparison in dogs using blocking enzyme-linked immunosorbent assay
- Author
-
H. T. Lin, C. H. Hsu, H. J. Tsai, C. H. Lin, P. Y. Lo, S. L. Wang, and L. C. Wang
- Subjects
dog ,enzyme-linked immunosorbent assay ,influenza A virus ,plasma ,serum ,Animal culture ,SF1-1100 ,Veterinary medicine ,SF600-1100 - Abstract
Background and Aim: The influenza A virus (IAV) is an important zoonotic pathogen with infections also reported in dogs. IAV infections can be detected through the presence of antibodies using the enzyme-linked immunosorbent assay (ELISA). Serum is the only standard sample source; however, there is no information on the availability of other sample sources for IAV antibody detection in dogs. Compared with serum, plasma is more widely employed in most animal hospitals. The object of this study is to investigate whether plasma collected in ethylenediaminetetraacetic acid (EDTA) tubes (EDTA plasma) or heparin tubes (heparin plasma) could be used in the ELISA protocol instead of serum for IAV antibody detection in dogs. Materials and Methods: Totally, 82 matched EDTA plasma and serum sample pairs and 79 matched heparin plasma and serum sample pairs were employed using blocking enzyme-linked immunosorbent assay (bELISA). The agreement and correlation between the plasma (EDTA or heparin plasma) and serum were assessed using the agreement index kappa (kD) calculation and Pearson correlation coefficient, respectively. Results: The agreement index kD of EDTA plasma and serum was 1.0, and that of heparin plasma and serum was 0.85. The Pearson correlation coefficient of EDTA plasma and serum was 0.87 (p
- Published
- 2015
- Full Text
- View/download PDF
12. Stimulated emission from semi-polar (11-22) GaN overgrown on sapphire
- Author
-
B. Xu, L. Jiu, Y. Gong, Y. Zhang, L. C. Wang, J. Bai, and T. Wang
- Subjects
Physics ,QC1-999 - Abstract
(11-22) semi-polar GaN is expected to exhibit major advantages compared with current c-plane polar GaN in the fabrication of long wavelength such as green and yellow emitters. However, all the III-nitride based semi-/non- polar laser diodes (LDs) reported so far have been achieved exclusively based on homo-epitaxial growth on extremely expensive free-standing GaN substrates with a very limited size. In this paper, we have observed a stimulated emission at room temperature achieved on our semi-polar (11-22) GaN overgrown on a micro-rod arrayed template with an optimized design on m-plane sapphire. This has never been achieved previously on any semi-polar GaN grown on sapphire. Furthermore, an optical gain of 130cm−1 has been measured by means of performing a standard laser stripe-length dependent optical measurement. The values of the threshold and the optical gain obtained are comparable to those of the c-plane GaN reported so far, further validating the satisfactory crystal quality of our overgrown semi-polar (11-22) GaN on sapphire. This represents a major step towards the development of III-nitride semi-polar based LDs on sapphire, especially in the long wavelength regime.
- Published
- 2017
- Full Text
- View/download PDF
13. Late Holocene environmental reconstructions and their implications on flood events, typhoon, and agricultural activities in NE Taiwan
- Author
-
L.-C. Wang, H. Behling, T.-Q. Lee, H.-C. Li, C.-A. Huh, L.-J. Shiau, and Y.-P. Chang
- Subjects
Environmental pollution ,TD172-193.5 ,Environmental protection ,TD169-171.8 ,Environmental sciences ,GE1-350 - Abstract
We reconstructed paleoenvironmental changes from a sediment archive of a lake in the floodplain of the Ilan Plain of NE Taiwan on multi-decadal resolution for the last ca. 1900 years. On the basis of pollen and diatom records, we evaluated past floods, typhoons, and agricultural activities in this area which are sensitive to the hydrological conditions in the western Pacific. Considering the high sedimentation rates with low microfossil preservations in our sedimentary record, multiple flood events were. identified during the period AD 100–1400. During the Little Ice Age phase 1 (LIA 1 – AD 1400–1620), the abundant occurrences of wetland plant (Cyperaceae) and diatom frustules imply less flood events under stable climate conditions in this period. Between AD 500 and 700 and the Little Ice Age phase 2 (LIA 2 – AD 1630–1850), the frequent typhoons were inferred by coarse sediments and planktonic diatoms, which represented more dynamical climate conditions than in the LIA 1. By comparing our results with the reconstructed changes in tropical hydrological conditions, we suggested that the local hydrology in NE Taiwan is strongly influenced by typhoon-triggered heavy rainfalls, which could be influenced by the variation of global temperature, the expansion of the Pacific warm pool, and the intensification of El Niño–Southern Oscillation (ENSO) events.
- Published
- 2014
- Full Text
- View/download PDF
14. Conductive path and local oxygen-vacancy dynamics: Case study of crosshatched oxides
- Author
-
Z W Liang, P Wu, L C Wang, B G Shen, and Zhi-Hong Wang
- Subjects
General Physics and Astronomy - Abstract
By employing scanning probe microscopy, conductive path and local oxygen-vacancy dynamics have been investigated in crosshatched La0.7Sr0.3MnO3 thin films grown onto flat and vicinal LaAlO3(001) single crystal substrates. Consistent with prior studies, the crosshatch topography was observed first by dynamical force microscopy as the epi-stain started to release with increasing film thickness. Second, by using conductive atomic force microscopy (CAFM), conductive crosshatch and dots (locally aligned or random) were unravelled, however, not all of which necessarily coincided with that shown in the in situ atomic force microscopy. Furthermore, the current–voltage responses were probed by CAFM, revealing the occurrence of threshold and/or memristive switchings. Our results demonstrate that the resistive switching relies on the evolution of the local profile and concentration of oxygen vacancies, which, in the crosshatched films, are modulated by both the misfit and threading dislocations.
- Published
- 2023
15. [Incidence of gastric cancer and risk factors in Suzhou cohort]
- Author
-
N B, Dai, X Y, Zhu, L, Jiang, Y, Gao, Y J, Hua, L C, Wang, J Y, Zhou, M, Wu, and Y, Lu
- Subjects
Cohort Studies ,Male ,Risk Factors ,Stomach Neoplasms ,Incidence ,Humans ,Female ,Prospective Studies ,Child ,Proportional Hazards Models - Published
- 2022
16. Compact and Broadband Microstrip-Line-Fed Modified Rhombus Slot Antenna
- Author
-
C. Y. Pan, J. Y. Jan, and L. C. Wang
- Subjects
Rhombus slot antenna ,protruded ground plane ,WLAN/WiMAX ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
The printed microstrip-line-fed broadband rhombus slot antenna is investigated in this paper. With the use of the offset microstrip feed line and the corner-truncated protruded ground plane, the bandwidth enhancement and the slot size reduction for the proposed slot antenna can be obtained. The experimental results demonstrate that the impedance bandwidth for 10 dB return loss reaches 5210 MHz (108.2%, 2210-7420 MHz), which is about 2.67 times of a conventional microstrip-line-fed rhombus slot antenna. This bandwidth can provide with the wireless communication services operating in wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) bands. Under the use of the protruded ground plane, the slot size can be reduced by about 52%. Details of simulated and measured results are presented and discussed.
- Published
- 2013
17. Topological Properties of an Extend Su-Schrieffer-Heeger Model Under Periodic Kickings
- Author
-
Li-Na Luan, Chun-Fang Li, and L. C. Wang
- Subjects
Physics ,Chern class ,Physics and Astronomy (miscellaneous) ,010308 nuclear & particles physics ,General Mathematics ,Position and momentum space ,Topology ,01 natural sciences ,symbols.namesake ,0103 physical sciences ,symbols ,Topological invariants ,010306 general physics ,Hamiltonian (quantum mechanics) ,Phase diagram - Abstract
One dimensional topological systems with extended periodically modulated parameters can be used to simulate and investigate two dimensional or other higher dimensional topological systems. In this paper, topological properties of an extended SSH model under the periodic δ-function kickings with X-direction, Y -direction, and Z-direction defined by pseudo-spin expression of the Hamiltonian in momentum space, has been explored. We find that, by modulating driven parameters and periodic δ-function kickings in such extended system, fruitful phase diagrams and topological states with higher Chern numbers can be introduced. In the case of X-direction kicking and Z-direction kicking, topological phase diagram will be changed but Chern numbers remain as 0 and ± 1, while for Y -direction kickings, large Chern numbers ± 2 can emerge. This is an extended study of using periodic kickings to obtain fruitful topological phases and large Chern number states in simulate two-dimensional systems.
- Published
- 2020
18. <scp>l</scp> ‐Glutamate stimulates cholecystokinin secretion via the <scp>T1R1</scp> / <scp>T1R3</scp> mediated <scp>PLC</scp> / <scp>TRPM5</scp> transduction pathway
- Author
-
Cuicui Kang, Suqin Hang, Weiyun Zhu, Jiangyin Feng, and L. C. Wang
- Subjects
medicine.medical_specialty ,Nutrition and Dietetics ,Phospholipase C ,Chemistry ,Monosodium glutamate ,digestive, oral, and skin physiology ,Allosteric regulation ,Glutamate receptor ,digestive system ,chemistry.chemical_compound ,Endocrinology ,Internal medicine ,medicine ,Secretion ,TRPM5 ,Receptor ,Agronomy and Crop Science ,hormones, hormone substitutes, and hormone antagonists ,Food Science ,Biotechnology ,Cholecystokinin - Abstract
Background It is known that cholecystokinin (CCK) plays an essential role in reducing food intake and driving weight loss. Previous studies demonstrated that amino acids were capable of triggering CCK release through G protein-coupled receptors, but the sensing mechanism remains obscure, especially the intracellular signaling pathway. Results l-Glu, rather than its d-isomer, robustly stimulated CCK secretion in a porcine duodenal model, and the secretory response was augmented by incubation with the allosteric ligand of T1R1, while T1R3 antagonist attenuated it. Upon inhibiting phospholipase C (PLC) or transient receptor potential M5 (TRPM5) activity, l-Glu failed to increase CCK release. Oral administration of monosodium glutamate in rats also suppressed food intake and increased plasma CCK levels, accompanied by elevated expression of T1R1, PLCβ2 and TRPM5 in the duodenum. Conclusion These data demonstrated that l-Glu stimulated CCK secretion through the activation of T1R1/T1R3 in a PLC/TRPM5-dependent manner. © 2020 Society of Chemical Industry.
- Published
- 2020
19. IMPACT OF THE INVASIVE PLANT ALTERNANTHERA PHILOXEROIDES (MART.) GRISEB ON SOIL MESO- AND MICROFAUNAL COMMUNITY
- Author
-
Z. Zhang, L.-C. Wang, J. Liu, L.-L. Deng, and Yue-Hu Wang
- Subjects
biology ,Alternanthera philoxeroides ,Botany ,biology.organism_classification ,Agronomy and Crop Science ,Ecology, Evolution, Behavior and Systematics ,Invasive species - Published
- 2020
20. Efficacy, toxicity, and quality‐of‐life outcomes of ultrahypofractionated radiotherapy in patients with localized prostate cancer: A single‐arm phase 2 trial from Asia
- Author
-
Janice S. H. Tan, Jonathan Y. H. Teh, Laura L. Y. Tan, Sheena X. F. Tan, You Quan Li, Terence W. K. Tan, Michael L. C. Wang, Ravindran Kanesvaran, Enya H. W. Ong, Kae Jack Tay, Lui Shiong Lee, Jeffrey K. L. Tuan, Daniel Y. H. Tan, and Melvin L. K. Chua
- Subjects
Male ,Oncology ,Gastrointestinal Diseases ,Quality of Life ,Humans ,Prostatic Neoplasms ,Radiation Dose Hypofractionation ,Dose Fractionation, Radiation ,Radiotherapy, Intensity-Modulated ,General Medicine ,Middle Aged ,Aged - Abstract
Ultra-hypofractionated radiotherapy (UHF-RT) is widely utilized in men with localized prostate cancer (PCa). There are limited data in Asian cohorts. We report the outcomes of a single-arm, phase II trial of UHF-RT from an Asian center.We recruited men with histologically confirmed, nonmetastatic localized PCa. UHF-RT regimens were 36.25 Gy (Cohort A) and 37.5 Gy (Cohort B) delivered in five fractions every other day over 1.5-2.5 weeks. Primary endpoint was physician-scored late genitourinary (GU) and gastrointestinal (GI) adverse events (AEs). Quality-of-life (QoL) was assessed by Expanded Prostate Cancer Index Composite (EPIC) at baseline, 1- and 2-year post-UHF-RT.Between March 2014 and August 2019, 105 men were recruited; four were subsequently excluded from analysis. Median age was 68.0 (Interquartile range (IQR): 63.8-73.0) years. 26 (24.8%) and 68 (64.8%) men had NCCN-defined low-and intermediate-risk PCa, respectively. No late ≥G3 GU or GI toxicities were reported in both cohorts. Peak incidence of acute ≥G2 GU AEs at 14 days post-UHF-RT was 23.6% (17/72) and 24.0% (6/25) in Cohorts A and B, respectively; ≥G2 GI AEs were observed in 9.7% (7/72) and 36.0% (9/25), respectively. Late ≥G2 GU and GI AEs occurred in 4.7% and 3.1% of Cohort A patients, and 5.0% in Cohort B at 12 months, with no AEs at 24 months. EPIC scores changed minimally across all domains. At a median follow-up of 44.9 months, we recorded one (1.3%) biochemical relapse by the Phoenix criteria (Cohort A).UHF-RT is well tolerated in Asian men and can be a recommended fractionation schema for localized PCa.
- Published
- 2021
21. Demonstration of Low EOT Gate Stack and Record Transconductance on $L_{\mathrm{g}}=90$ nm nFETs Using 1.8 nm Ferroic HfO2-ZrO2 Superlattice
- Author
-
W. Li, L. C. Wang, S. S. Cheema, N. Shanker, J. H. Park, Y. H. Liao, S. L. Hsu, C. H. Hsu, S. Volkman, U. Sikder, A. J. Tan, J. H. Bae, C. Hu, and S. Salahuddin
- Published
- 2021
22. [Association between perception of community environment and physical activity in residents in Suzhou]
- Author
-
Y J, Hua, Y, Lu, L C, Wang, H, Yu, Y J, Duan, J, Lyu, and L M, Li
- Subjects
Residence Characteristics ,Surveys and Questionnaires ,Humans ,Environment Design ,Perception ,Transportation ,Walking ,Exercise - Published
- 2021
23. Soybean protein hydrolysate stimulated cholecystokinin secretion and inhibited feed intake through calcium-sensing receptors and intracellular calcium signalling in pigs
- Author
-
Suqin Hang, Liren Ding, Weiyun Zhu, and L. C. Wang
- Subjects
medicine.medical_specialty ,NPS-2143 ,Duodenum ,Protein Hydrolysates ,Swine ,media_common.quotation_subject ,Appetite ,TRPM Cation Channels ,Naphthalenes ,digestive system ,Eating ,Internal medicine ,medicine ,Animals ,TRPM5 ,Calcium Signaling ,Intestinal Mucosa ,Receptor ,Cholecystokinin ,media_common ,Chemistry ,digestive, oral, and skin physiology ,Seed Storage Proteins ,Globulins ,General Medicine ,Antigens, Plant ,Animal Feed ,Endocrinology ,Peptide YY ,Anorectic ,Soybean Proteins ,Receptors, Calcium-Sensing ,hormones, hormone substitutes, and hormone antagonists ,Food Science ,Hormone - Abstract
Although soybean protein is the major component in livestock feeds, its effect on pigs' appetites is largely unknown. Recently, the importance of gut nutrient-sensing for appetite modulation by regulating anorectic gut hormone release has been recognised. This study investigates the roles of soybean proteins in appetite regulation, anorectic gut hormone secretion, and underlying mechanisms. The duodenal-cannulated piglets were used to evaluate the effects of soybean protein hydrolysate (SPH) on feed intake and anorectic hormone release, including cholecystokinin (CCK), peptide YY (PYY), glucagon-like peptide 1 (GLP-1), and glucose-dependent insulinotropic polypeptide (GIP) in the hepatic vein by infusing SPH. Identifying which nutrient-sensing receptor in pig duodenum response to SPH stimulation for gut hormone release was conducted. Using its antagonist, the role of the identified receptor in feed intake and anorectic hormone release was also investigated. Combination with an ex vivo perfusion system, the possible mechanism by which SPH exerts the effects in porcine duodenum was further illustrated. Results in vivo showed that intraduodenal infusion of SPH inhibited short-term feed intake in pigs and promoted CCK, PYY, and GIP secretion in the hepatic vein. SPH also increased duodenum calcium-sensing receptor (CaSR) expression. Pre-treated with CaSR antagonist NPS 2143, the feed intake of pigs tended to be attenuated by SPH (P = 0.09), and CCK release was also suppressed (P < 0.05), indicating that CaSR was involved in SPH-stimulated CCK release and inhibited feed intake in pigs. The ex vivo perfused duodenum tissues revealed that SPH-triggered CCK secretion was likeliest due to the activation of the intracellular Ca2+/TRPM5 pathway. Overall, this study's result illustrates that the diet soybean protein might decrease appetite in pigs by triggering duodenum CCK secretion by activating CaSR and the intracellular Ca2+/TRPM5 pathway.
- Published
- 2021
24. Early and mid-term outcomes of modified aortic root repair for acute stanford type A aortic dissection
- Author
-
Y X Liu, X G Sun, L C Wang, and Y J Dun
- Subjects
Aortic dissection ,medicine.medical_specialty ,business.industry ,Aortic root ,medicine ,Cardiology and Cardiovascular Medicine ,business ,medicine.disease ,Surgery ,Term (time) - Abstract
Background Acute Stanford type A aortic dissection (ATAAD) is the most common catastrophic aortic event. Most ATAAD involves the aortic root which has many important anatomical structures such as aortic valve, so the proper treatment of dissected root can ensure a good prognosis for patients. However, there is still no consensus on root management strategies for ATAAD patients with aortic root involvement. Purpose This clinical study aimed to evaluate the therapeutic effect of modified aortic root repair in ATAAD. Methods From September 2017 to September 2020, Participants with root involvement of ATAAD were recruited who underwent modified aortic root repair as well as some additional procedure such as aortic valve junction suspension plasty based on the aortic sinus tear extent. During this novel procedure, the proximal anastomosis plane was at the level of the sinu-tubular junction and the false lumen below it was retained. We collected and analyzed the perioperative clinical data and follow-up imaging data of patients, and further evaluated the early and mid-term efficacy of this surgical approach. Results A total of 79 patients were enrolled, including 59 males and 20 females, the age was (52.4±11.3) years old (28–73 years), the diameter of aortic sinus was (38.6±4.1) mm, and the diameter of sinu-tubular junction was (41.8±4.8) mm. In this group, 75 patients (94.9%) received ascending aorta replacement, total arch replacement and frozen elephant trunk, 2 patients (2.5%) received ascending aorta replacement and hybrid total arch replacement, 2 patients (2.5%) received ascending aorta replacement and partial arch replacement. Cardiopulmonary bypass time was (197.2±58.6) min (118–455 min), blocking time was (132.6±38.9) min (73–323 min), circulatory arrest time was (10.3±7.0) min (0–27 min). There was no perioperative death, no paraplegia, one secondary thoracotomy, five renal failures needing hemodialysis treatment and two cerebral infarctions. Before patients discharged, aortic CTA showed that the residual false lumen in the sinus disappeared. And the diameter of the aortic sinus was (35.5±3.1) mm, the diameter of the junction of the aortic sinus was (30.0±3.0) mm. The patients were followed up for (18±12) months (3–35 months). There was one patient died during follow-up and no further surgical intervention at the root of the aorta. Follow-up aortic CTA showed no residual or new dissection in the aortic sinus and no significant difference in the diameters of aortic sinu-tubular junction (P=0.122) or aortic sinus (P=0.37) between postoperative period and follow-up period. Echocardiography showed that the structure and function of the aortic valve were normal. Conclusions The modified aortic root repair for ATAAD is relatively simple, easy to learn and safe in perioperative period. Early and mid-term follow-up image examination showed that the structure of aortic sinus returned to normal. The long-term clinical effect requires close attention. Funding Acknowledgement Type of funding sources: None. Modified aortic root repair procedureAortic root diameter change under CTA
- Published
- 2021
25. Periodic Driving Induced Anomalous End Modes in a Superconducting Wire with the Second-Neighbor Pairing Potential
- Author
-
X. P. Li, L. C. Wang, Changming Li, and Ling Zhou
- Subjects
Floquet theory ,Physics ,Complex conjugate ,Physics and Astronomy (miscellaneous) ,010308 nuclear & particles physics ,General Mathematics ,Superconducting wire ,Phase (waves) ,engineering.material ,01 natural sciences ,symbols.namesake ,Amplitude ,Fourier transform ,Pairing ,Quantum mechanics ,0103 physical sciences ,engineering ,symbols ,010306 general physics ,Eigenvalues and eigenvectors - Abstract
The anomalous end modes are generated in a one-dimensional p-wave superconducting wire with second-neighbor couplings and a periodic driving in pairing potential. We show that the driving on the amplitude or the phase of the first-neighbor and second-neighbor pairing potential can both generate conventional end modes and anomalous end modes, with corresponding Floquet eigenvalues equal to ± 1 or appear in complex conjugate pairs. We have numerically studied the driving of the first-neighbor and second-neighbor pairing potential, and also analyzed the end modes, Floquet eigenvalues and the Fourier transform of these end modes.
- Published
- 2019
26. Generating Majorana modes in one-dimensional p-wave superconductor with second-neighbor couplings by periodic kicking
- Author
-
Changming Li, X.P. Li, Liqin Zhou, and L. C. Wang
- Subjects
Floquet theory ,Superconductivity ,Physics ,Phase transition ,P wave ,Winding number ,General Physics and Astronomy ,01 natural sciences ,Constructive ,010305 fluids & plasmas ,MAJORANA ,Quantum mechanics ,Physics::Space Physics ,0103 physical sciences ,010306 general physics - Abstract
Generating many Majorana modes (MMs) within one single system is a constructive method for experimental observation of MMs in condensed-matter systems. In this paper, we show that by adding periodic δ-function kicks on the chemical potential, a large number of MMs can be generated in the one-dimensional p-wave superconductor system with second-neighbor couplings. The Floquet theory has been used to analyze the stroboscopic properties and the winding number can be used to characterize the topological properties. We have analyzed the influence of the kicking parameters and second-neighbor couplings on the topological phase transitions.
- Published
- 2019
27. IMPACT OF AGRICULTURAL WASTE RETURN ON SOIL GREENHOUSE GAS EMISSIONS
- Author
-
A. Z. Liang, D. D. Huang, L C Wang, X. W. Chen, Y H Geng, and G. J. Cao
- Subjects
Agricultural waste ,Waste management ,Greenhouse gas ,Environmental science ,Agronomy and Crop Science ,Ecology, Evolution, Behavior and Systematics - Published
- 2019
28. Direct and all-dry microfabrication of ultramicroelectrode based on cold atmospheric microplasma jet
- Author
-
Z. J. Guo, Y. Xi, Bin Yang, Juntao Liu, and L. C. Wang
- Subjects
Jet (fluid) ,Materials science ,business.industry ,Microplasma ,Optoelectronics ,Ultramicroelectrode ,business ,Microfabrication - Published
- 2021
29. Epidemiological features of coronavirus disease 2019 in children: a meta-analysis
- Author
-
J-G, Wang, Z-J, Zhong, Y-F, Mo, L-C, Wang, and R, Chen
- Subjects
Child, Preschool ,COVID-19 ,Humans ,Child ,Systemic Inflammatory Response Syndrome ,Retrospective Studies - Abstract
Many studies have been published recently on the characteristics of the clinical manifestations of COVID-19 in children. The quality scores of literature are different, and the incidence of clinical manifestations and laboratory tests results vary greatly. Therefore, a systematic retrospective meta-analysis is needed to determine the incidence of the clinical manifestations of COVID-19 in children.Data from databases, such as PubMed, Web of science, EMBASE, Johns Hopkins University, and Chinese databases were analysed from January 31, 2020 to October 20, 2020. High-quality articles were selected for analysis based on a quality standard score. A meta-analysis of random effects was used to determine the prevalence of comorbidities and subgroup meta-analysis to examine the changes in the estimated prevalence in different subgroups.Seventy-one articles involving 11,671 children were included in the study. The incidence of fever, respiratory symptoms, gastrointestinal symptoms, asymptomatic patients, nervous system symptoms, and chest tightness was 55.8%, 56.8%, 14.4%, 21.1%, 6.7%, and 6.1%, respectively. The incidence of multisystem inflammatory syndrome was 6.2%. Laboratory examination results showed that lymphocytes decreased in 12% and leukocytes decreased in 8.8% of patients, whereas white blood cells increased in 7.8% of patients. Imaging showed abnormalities in 66.5%, and ground-glass opacities were observed in 36.9% patients. Epidemiological history was present in 85.2% cases; severe disease rate was 3.33%. The mortality rate was 0.28%.The clinical symptoms of COVID-19 in children are mild, and laboratory indicators and imaging manifestations are atypical. While screening children for COVID-19, in addition to assessing patients for symptoms as the first step of screening, the epidemiological history of patients should be obtained.
- Published
- 2021
30. FKBP51 acts as a biomarker of early metastasis and is related to carmustine sensitivity in human glioma cells
- Author
-
H, Li, Y-L, Jiao, R-F, Zhou, S, Liu, B, Cui, L-C, Wang, X-W, Liu, and Y-R, Zhao
- Subjects
Tacrolimus Binding Proteins ,Cell Movement ,Biomarkers, Tumor ,Tumor Cells, Cultured ,Humans ,Glioma ,Antineoplastic Agents, Alkylating ,Carmustine ,Cell Proliferation - Abstract
Given that FK506 binding protein 51 (FKBP51) is upregulated in multiple cancers, we designed the present study to characterize its role as well as underlying regulatory mechanisms in glioma in the presence and absence of the chemotherapeutic carmustine (BCNU).Through lentiviral overexpression and shRNA knockdown of FKBP51, we examined the effects on BT325 glioma cell proliferation, migration and invasion using quantitative reverse transcription PCR (qRT-PCR), CCK-8 assay, flow cytometry, and transwell assay.The upregulation of FKBP51 resulted in significantly decreased BT325 cell proliferation and cell viability, cell cycle arrest, reduced BCNU chemosensitivity and AKT pathway inactivation. However, FKBP51-overexpressed BT325 cells showed enhanced migration and invasion, which was supported by corresponding increase in phosphorylated IKKα (p-IKKα), MMP-2, and MMP-9 levels, as well as increased NF-κB p65 nuclear translocation. By contrast, FKBP51-suppressed BT325 cells showed excessive proliferation and BCNU resistance due to increased p-AKT activation and attenuated migration and invasion.We demonstrated that the effects of FKBP51 on BT325 glioma cell proliferation, migration, invasion and BCNU chemosensitization are modulated via the AKT and NF-κB pathways. Furthermore, our findings suggest the potential of FKBP51 as a prognostic glioma biomarker and an indicator of patient response to chemotherapy.
- Published
- 2020
31. Cross-sectional study of factors correlated to quality of life in patients with coronary artery disease and diabetic retinopathy
- Author
-
L C, Wang, A Q, Gu, C L, Sun, H, Xu, X S, Ni, R J, Wang, X Y, Zhao, and Q C, Wang
- Subjects
Cross-Sectional Studies ,Diabetic Retinopathy ,Quality of Life ,Humans ,Coronary Artery Disease - Published
- 2020
32. [Years of potential life lost due to premature death of cardiovascular diseases among residents in Suzhou from 1987 to 2017]
- Author
-
C Y, Huang, J X, Li, S F, Chen, J C, Chen, Y, Lu, Q L, Huang, L C, Wang, Y J, Hua, and Y H, Hu
- Subjects
China ,Life Expectancy ,Cardiovascular Diseases ,Mortality, Premature ,Humans ,Probability - Abstract
From 1987 to 2017, cardiovascular disease (CVD) had been ranking the first cause of death in Suzhou, and the mortality rate showed an upward trend annual percentage changes (APC=0.62%,1987—2017年苏州市心血管疾病(CVD)一直位于死因顺位首位,死亡率呈现上升趋势[年度变化百分比(APC)=0.62%
- Published
- 2020
33. Allelopathic potential of Phragmites australis extracts on the growth of invasive plant Alternanthera philoxeroides
- Author
-
L. L. Deng, D. Li, J. Liu, Z. Zhang, L. C. Wang, and Y. J. Liu
- Subjects
0106 biological sciences ,0301 basic medicine ,Plant Science ,Biology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Invasive species ,Phragmites ,03 medical and health sciences ,chemistry.chemical_compound ,030104 developmental biology ,chemistry ,Alternanthera philoxeroides ,Chlorophyll ,Botany ,Agronomy and Crop Science ,Allelopathy - Published
- 2018
34. [Clinical study on topography-guided laser ablation combined with accelerated corneal collagen cross-linking for early keratoconus]
- Author
-
L C, Wang, Y G, Chen, Y, Zhang, H Y, Yang, R, Zhao, and Y J, Xia
- Subjects
Adult ,Male ,Photosensitizing Agents ,Adolescent ,Ultraviolet Rays ,Corneal Stroma ,Corneal Topography ,Keratoconus ,Cornea ,Young Adult ,Cross-Linking Reagents ,Humans ,Female ,Collagen ,Laser Therapy ,Child - Published
- 2019
35. Initiation of Meiotic Development Is Controlled by Three Post-transcriptional Pathways in Caenorhabditis elegans
- Author
-
Kara Vanden Broek, Tim Schedl, Verena Jantsch, Ariz Mohammad, Anahita Daryabeigi, Christopher L. C. Wang, and Dave Hansen
- Subjects
0301 basic medicine ,Genetics ,Notch signaling pathway ,Cell cycle ,Biology ,Protein degradation ,biology.organism_classification ,03 medical and health sciences ,030104 developmental biology ,Mitotic cell cycle ,Downregulation and upregulation ,Mitosis ,Gametogenesis ,Caenorhabditis elegans - Abstract
A major transition in germ cell development is the switch from mitotic cell cycling to entry into the meiotic developmental pathway. Mohammad et al. report that the SCFPROM-1 substrate-specific E3 ubiquitin ligase complex is a new... A major event in germline development is the transition from stem/progenitor cells to entry into meiosis and gametogenesis. This transition requires downregulation of mitotic cell cycle activity and upregulation of processes associated with meiosis. We identify the Caenorhabditis elegans SCFPROM-1 E3 ubiquitin-ligase complex as functioning to downregulate mitotic cell cycle protein levels including cyclin E, WAPL-1, and KNL-2 at meiotic entry and, independently, promoting homologous chromosome pairing as a positive regulator of the CHK-2 kinase. SCFPROM-1 is thus a novel regulator of meiotic entry, coordinating downregulation of mitotic cell cycle proteins and promoting homolog pairing. We further show that SCFPROM-1 functions redundantly, in parallel to the previously described GLD-1 and GLD-2 meiotic entry pathways, downstream of and inhibited by GLP-1 Notch signaling, which specifies the stem cell fate. Accordingly, C. elegans employs three post-transcriptional pathways, SCFPROM-1-mediated protein degradation, GLD-1-mediated translational repression, and GLD-2-mediated translational activation, to control and coordinate the initiation of meiotic development.
- Published
- 2018
36. Effect of Floquet engineering on the p -wave superconductor with second-neighbor couplings
- Author
-
Ling Zhou, Changming Li, L. C. Wang, and X.P. Li
- Subjects
Floquet theory ,Superconductivity ,Physics ,Winding number ,General Physics and Astronomy ,01 natural sciences ,010305 fluids & plasmas ,symbols.namesake ,Amplitude ,Quantum mechanics ,0103 physical sciences ,symbols ,010306 general physics ,Hamiltonian (quantum mechanics) ,Reference frame ,Phase diagram - Abstract
The influence of the Floquet engineering on a particular one-dimensional p-wave superconductor, Kitaev model, with second-neighbor couplings is investigated in this paper. The effective Hamiltonians in the rotated reference frames have been obtained, and the convergent regions of the approximated Hamiltonian as well as the topological phase diagrams have been analyzed and discussed. We show that by modulating the external driving field amplitude, frequency as well as the second-neighbor hopping amplitude, the rich phase diagrams and transitions between different topological phases can be obtained.
- Published
- 2018
37. Combination of fiber-degrading enzymatic hydrolysis and lactobacilli fermentation enhances utilization of fiber and protein in rapeseed meal as revealed in simulated pig digestion and fermentation in vitro
- Author
-
Xiaofeng Zhu, Liren Ding, Suqin Hang, L. C. Wang, and Zhen Zhang
- Subjects
biology ,Chemistry ,food and beverages ,Cellulase ,biology.organism_classification ,Lactic acid ,chemistry.chemical_compound ,Enzymatic hydrolysis ,Lactobacillus ,biology.protein ,Animal Science and Zoology ,Dry matter ,Fermentation ,Food science ,Pectinase ,Digestion - Abstract
As the increased rapeseed meal (RSM) production in last decades, improving the utilization of RSM is considered a major target in agricultural biotechnology. A series of in vitro studies were conducted to determine the effects of fiber-degrading enzymes and lactobacilli fermentation on the nutritional value of RSM. In experiment 1, the mixture of three strains of lactobacillus (L. reuteri L45, L. plantarum L47, and L. johnsonii L63) were applied to ferment RSM for 48 h after fiber-degrading enzymatic hydrolysis (a mixture of 10 FPU/g cellulase and 10 U/g pectinase) for 28 h. Four treatment groups were assigned: i) RSM without lactobacilli and enzymes (CON); ii) RSM with lactobacilli (LA); iii) RSM with enzymes (EN); and iv) RSM with enzymes and lactobacilli (EN + LA). Each group had 4 replicates. Lactobacilli growth characteristics were detected after the experiment. All RSM samples were dried and used for experiment 2. In experiment 2, samples of 4 groups were digested by pepsin and pancreatin to simulated small intestine digestion. Digestibility of dry matter and crude protein (CP) in vitro was measured. In experiment 3, undigested residues from each group were incubated with fresh pig rectum digesta as inoculums for 48 h to simulated the porcine large intestine fermentation in vitro. Accumulative gas production was recorded and modeled to estimate kinetics of gas production. Short-chain fatty acid (SCFA) concentration was measured at the end of fermentation. In experiment 1, the results demonstrated that reducing sugar concentration in EN was higher than that in CON. Compared with LA, lactic acid concentration and count of viable Lactobacillus were higher, and pH was lower in EN + LA. Rapeseed meal treated with EN + LA presented the lowest value of glucosinolate and the highest value of CP as well. In experiment 2, in vitro dry matter and CP digestibility of RSM was increased by 23 % and 20 %, respectively, by the addition of EN regardless of LA addition through a simulated small intestine digestion in vitro. The findings in experiment 3 showed that EN + LA reduced the accumulative gas production and SCFA compared with CON, indicating an improvement in utilization of carbohydrates and protein in both enzymatic hydrolysis and lactobacilli fermentation and in vitro digestion. Overall, fiber-degrading enzymes promoted the growth of lactobacilli on RSM, and the combination of fiber-degrading enzymatic hydrolysis and lactobacilli fermentation enhanced nutritional value and utilization of fiber and protein in RSM.
- Published
- 2021
38. Temperature Field Acquisition And Data Analysis Of Coke Oven
- Author
-
R T Zhao, J S Wei, Y Y Guo, L C Wang, W Q Liu, and P Yang
- Subjects
History ,Materials science ,Coke oven ,Field (physics) ,business.industry ,Field data ,Coke ,Computer Science Applications ,Education ,law.invention ,law ,Scientific method ,Process engineering ,business ,Flue ,Pyrometer - Abstract
In coking process of the coke oven, in order to realize the accurate detection of the temperature field data of the coke oven, this paper designs a high precision timing automatic inspection device. It uses a infrared pyrometer to quickly obtain the radial temperature profile of the flue, then based on it, it can get accurate flue temperature through analyzing. The temperature distribution of coke oven depends entirely on the results of the representative flue. The comparison between the temperature measured by the system and the temperature measured by people shows that the system is stable and reliable, it can accurately obtain the temperature of representative flue, then analyze the temperature field of the whole coke oven which taken as an important basis for adjusting the coke oven process parameters and ensuring the quality of coke.
- Published
- 2021
39. [Microbiology analysis of periprothetic joint infection post total hip and knee arthroplasty of 9 centers in Beijing between 2014 and 2016]
- Author
-
H M, Peng, L C, Wang, J Y, Chen, Y X, Zhou, H, Tian, J H, Lin, W S, Guo, Y, Lin, T B, Qu, A, Guo, Y P, Cao, and X S, Weng
- Subjects
Adult ,Aged, 80 and over ,Male ,Reoperation ,Prosthesis-Related Infections ,Arthroplasty, Replacement, Hip ,Drug Resistance, Microbial ,Microbial Sensitivity Tests ,Middle Aged ,Young Adult ,Cross-Sectional Studies ,Beijing ,Humans ,Female ,Arthroplasty, Replacement, Knee ,Aged ,Retrospective Studies - Published
- 2019
40. [Clinical significance of CTP combined with ABIC score in predicting the short-term prognosis of patients with hepatitis B virus-related acute-on-chronic liver failure]
- Author
-
D, Cao, D J, Li, Y, Wang, Y H, Zhang, L Y, Chen, and L C, Wang
- Subjects
Hepatitis B virus ,ROC Curve ,Predictive Value of Tests ,Creatinine ,Acute-On-Chronic Liver Failure ,Humans ,Bilirubin ,International Normalized Ratio ,Child ,Hepatitis B ,Prognosis ,Sensitivity and Specificity ,Severity of Illness Index - Published
- 2019
41. Establishment of mouse model of qi-deficiency gastrointestinal failure
- Author
-
L Q, Huang, W, Shen, T, Qiu, Y H, Zhi, L C, Wang, S H, Mao, X, Xing, S H, Shen, and R L, Jiang
- Subjects
Disease Models, Animal ,Mice ,Gastrointestinal Diseases ,Qi ,Animals ,Medicine, Chinese Traditional - Published
- 2019
42. [Value of serum matrix metalloproteinase 3 in the assessment of early rheumatoid arthritis]
- Author
-
M K, Liu, L C, Wang, and F L, Hu
- Subjects
Arthritis, Rheumatoid ,Osteoarthritis ,Humans ,Matrix Metalloproteinase 3 ,Blood Sedimentation - Abstract
To investigate the expression level of serum matrix metalloproteinase 3 (MMP3) in early rheumatoid arthritis (ERA) patients with normal C-reaction protein (CRP) or erythrocyte sedimentation rate (ESR), and the significance in disease assessment.In the study, 133 cases of early RA patients, 25 osteoarthritis (OA) patients and 60 healthy controls in Peking University People's Hospital from 2011 to 2015 were included. The RA patients were further divided into 4 groups according to levels of CRP and ESR: 88 patients with increased CRP and increased ESR, 15 patients with normal CRP and normal ESR, 17 patients with normal CRP but increased ESR, and 13 patients with increased CRP but normal ESR. All the clinical information of the patients was collected, and the serum MMP3 levels of both patients and healthy controls were detected by enzyme-linked immune sorbent assay (ELISA).The serum MMP3 level of RA patients with normal CRP and/or normal ESR [(72.89±6.34) μg/L] was obviously higher than that of OA patients [(42.87±4.14) μg/L] (P=0.002) and healthy controls [(31.62±2.88) μg/L] (P0.001). The serum MMP3 levels of the patients with normal CRP and normal ESR [(47.04±9.64) μg/L] were higher than those of the healthy controls, and there was statistical significance between the two groups (P0.05). The serum MMP3 levels of the patients with increased CRP but normal ESR [(94.18±9.11) μg/L] and the patients with normal CRP but increased ESR [(79.42±10.60) μg/L] were both higher than those of the OA patients and healthy controls, and there was obvious statistical difference (P0.05). In the early RA patients with normal CRP and/or normal ESR, the serum MMP3 level was positively correlated with the CRP level (r=0.336, P=0.024). The positive rate of MMP3 in the patients with normal CRP and/or normal ESR was 44.44%, higher than the positive rate of CRP (28.89%) and the positive rate of ESR (37.78%). In these early RA patients, the positive rate was 52.94% in the patients with normal CRP but increased ESR and 53.85% in the patients with increased CRP but normal ESR.The detection of the serum MMP3 level was significant in the assessment of early RA patients within 2-year duration who had normal CRP or ESR value.
- Published
- 2018
43. Preparing entangled states by Lyapunov control
- Author
-
Z. C. Shi, X. X. Yi, and L. C. Wang
- Subjects
Physics ,Bell state ,Quantum decoherence ,Invariant subspace ,Statistical and Nonlinear Physics ,Context (language use) ,Quantum entanglement ,01 natural sciences ,010305 fluids & plasmas ,Theoretical Computer Science ,Electronic, Optical and Magnetic Materials ,Modeling and Simulation ,Quantum mechanics ,0103 physical sciences ,Signal Processing ,Spontaneous emission ,Electrical and Electronic Engineering ,W state ,010306 general physics ,Quantum computer - Abstract
By Lyapunov control, we present a protocol to prepare entangled states such as Bell states in the context of cavity QED system. The advantage of our method is of threefold. Firstly, we can only control the phase of classical fields to complete the preparation process. Secondly, the evolution time is sharply shortened when compared to adiabatic control. Thirdly, the final state is steady after removing control fields. The influence of decoherence caused by the atomic spontaneous emission and the cavity decay is discussed. The numerical results show that the control scheme is immune to decoherence, especially for the atomic spontaneous emission from $$|2\rangle $$|2ź to $$|1\rangle $$|1ź. This can be understood as the state staying in an invariant subspace. Finally, we generalize this method in preparation of W state.
- Published
- 2016
44. AB0974 ANALYSIS OF DYSLIPIDEMIA IN SYSTEMIC LUPUS ERYTHEMATOSUS
- Author
-
Y. T. Lin, Y. H. Yang, J. H. Lee, B. L. Chiang, L. C. Wang, A. S. H. Chen, H. Ya-Chiao, and H. H. Yu
- Subjects
medicine.medical_specialty ,Rheumatology ,business.industry ,Immunology ,Immunology and Allergy ,Medicine ,business ,medicine.disease ,Dermatology ,General Biochemistry, Genetics and Molecular Biology ,Dyslipidemia - Abstract
Background:Systemic lupus erythematosus (SLE) is an autoimmune disease and is characterized by multiple autoantibodies associated with a multisystem illness. However, studies of dyslipidemia in pediatric SLE patients are limited.Objectives:The aim of our study is to describe the lipid profiles associated with disease activity and organ damage and their correlation with laboratory parameters in pediatric SLE patients.Methods:We retrospectively reviewed medical records from a single tertiary hospital in Taipei, Taiwan from 2002 to 2018. One hundred and twenty-four patients diagnosed with SLE were included. Dyslipidemia is defined as elevations in total cholesterol (TC), low-density lipoprotein (LDL), and triglyceride (TG) levels, and a reduction in high-density lipoprotein (HDL) levels. We gathered all of the lipid profiles, clinical characteristics, and laboratory parameters from each patient. Pediatric SLE patients participated in this study, based on their lipid profile, were classified as dyslipidemic or not. The mean values of each evaluated parameters were calculated and analyzed with generalized estimating equation (GEE) method.Results:Total thirty-one SLE patients were enrolled; twenty-four (77%) patients had dyslipidemia. The levels of total cholesterol, TG, and LDL in the dyslipidemic group are significantly higher than those of non-dyslipidemia (214.0 mg/dLvs145.0 mg/dL, 130.1 mg/dLvs76.4 mg/dL, 138.7 mg/dLvs82.0 mg/dL; respectively). The mean values of white blood cell count (6726/µL) in dyslipidemia group are significantly higher than non-dyslipidemia group (4521/µL;p=0.0157). In contrast, the level of high-sensitivity CRP in the non-dyslipidemia group (0.2 mg/dL) are significantly lower than those of patients with dyslipidemia (0.49 mg/dL;p=0.0486).Conclusion:It has been well known that CRP could suppress HDL and increase TG and that elevation of CRP might indicate increased cardiovascular risk. Our results demonstrated that elevated high sensitivity CRP levels were noted in SLE patients with dyslipidemia. It is suggested that routine monitoring of cardiovascular risk factors, such as dyslipidemia, should be recommended for pediatric SLE patients.References:[1]Szabó, M.Z., Szodoray, P. & Kiss, E. Immunol Res (2017) 65: 543.[2]Atta, A.M., Silva, J.P.C.G., Santiago, M.B. et al. Clin Rheumatol (2018) 37: 1539.[3]Yu, H.H., Chen, P.C., Yang, Y.H. Atherosclerosis. 2015; 243(1): 11–18.Acknowledgments:The authors acknowledge statistical assistance provided by the Center of Statistical Consultation and Research in the Department of Medical Research, National Taiwan University HospitalDisclosure of Interests:None declared
- Published
- 2020
45. Giant reversible magnetocaloric effect in antiferromagnetic rare-earth cobaltite GdCoO3
- Author
-
Kai-Yue Hou, Qin Dong, Lei Su, H. T. Yan, L. C. Wang, Xuehua Zhang, Ya-Jiao Ke, and Zhao-Hua Cheng
- Subjects
010302 applied physics ,Materials science ,Magnetic moment ,Condensed matter physics ,General Physics and Astronomy ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Heat capacity ,Isothermal process ,Cobaltite ,chemistry.chemical_compound ,Magnetization ,chemistry ,0103 physical sciences ,Magnetic refrigeration ,Antiferromagnetism ,0210 nano-technology ,Néel temperature - Abstract
We have investigated the magnetic properties and magnetocaloric effects in polycrystalline GdCoO3 with a low-spin state of Co3+ ion by magnetization and heat capacity measurements. GdCoO3 shows antiferromagnetic ordering due to the Gd3+ magnetic moments below Neel temperature TN = 3.1 K. This compound exhibits a giant magnetocaloric effect around TN. The maximum value of isothermal magnetic entropy change is 39.1 J/kg K, the peak value of adiabatic temperature change is 19.1 K, and the refrigerant capacity is 278 J/kg for a field change of 0–70 kOe around TN. The large magnetocaloric effect is related to the half-filled 4f electronic state of Gd3+ ions. The giant magnetocaloric effect as well as no hysteresis suggest that GdCoO3 could be a potential refrigerant in low-temperature magnetic refrigeration technology.
- Published
- 2020
46. The Main Steamline Break Transient Analysis for Advanced Boiling Water Reactor Using TRACE, PARCS, and SNAP Codes
- Author
-
H. C. Chang, J. R. Wang, A. L. Ho, S. W. Chen, J. H. Yang, C. Shih, and L. C. Wang
- Abstract
To confirm the reactor and containment integrity of the Advanced Boiling Water Reactor (ABWR), we perform the analysis of main steamline break (MSLB) transient by using the TRACE, PARCS, and SNAP codes. The process of the research has four steps. First, the ABWR nuclear power plant (NPP) model is developed by using the above codes. Second, the steady state analysis is performed by using this model. Third, the ABWR model is used to run the analysis of MSLB transient. Fourth, the predictions of TRACE and PARCS are compared with the data of FSAR. The results of TRACE/PARCS and FSAR are similar. According to the TRACE/PARCS results, the reactor and containment integrity of ABWR can be maintained in a safe condition for MSLB.
- Published
- 2018
- Full Text
- View/download PDF
47. The effect of transesophageal echocardiography in the surgical treatment of tetralogy of Fallot
- Author
-
L-C, Wang, S-K, Li, F-T, Zhu, T, Bian, and H-Y, Wang
- Subjects
Adult ,Male ,Adolescent ,Infant ,Middle Aged ,Pulmonary Artery ,Intensive Care Units ,Young Adult ,Treatment Outcome ,Pulmonary Veins ,Child, Preschool ,Tetralogy of Fallot ,Humans ,Female ,Cardiac Output ,Child ,Echocardiography, Transesophageal - Abstract
To investigate the effect of transesophageal echocardiography (TEE) in the surgical treatment of tetralogy of Fallot.98 patients with tetralogy of Fallot received and cured by Zhengzhou Cardiovascular Hospital (Zhengzhou No. 7 People's Hospital) from January 2015 to January 2017 were selected as the study objects. All patients were examined by TEE before surgery, and the pulmonary artery index (PAI) and pulmonary vein index (PVI) were measured, so as to analyze the effect of TEE in the surgical treatment of tetralogy of Fallot. Among the 98 patients, 12 patients were diagnosed with intensive care unit (ICU) retention, 23 patients were diagnosed with respirator assisted respiration extension, 8 patients were diagnosed with low cardiac output syndrome, and 10 patients were diagnosed with respiratory tract infection, which indicated that TEE could diagnose conditions after radical operation of tetralogy of Fallot.The calculation results showed that the PAI was (171.37±58.39) mm2/m2 and the PVI was (282.46±54.37) mm2/m2. The Pearson correlation analysis showed that the correlation between them was good (r=0.821, p0.001). TEE had good specificity and sensitivity in the diagnosis of respirator assisted respiration extension, ICU retention, and low cardiac output syndrome after radical surgery of tetralogy of Fallot.TEE can predict the occurrence of respirator assisted respiration extension, ICU retention and low cardiac output syndrome of patients after radical surgery by evaluating the PAI and PVI of patients with tetralogy of Fallot.
- Published
- 2018
48. Serum hepatitis B surface antigen correlates with fibrosis and necroinflammation: A multicentre perspective in China
- Author
-
K P Jiang, P Zhang, Q He, Yueqiu Gao, Xiaoming Wang, B Chen, Q K Wu, Z Y Yang, B J Lu, Y F Xing, G J Tian, X L Chi, J C Guo, You Zhou, Y Q Mi, Chengzhong Li, N N Sun, J H Wu, J D Xue, X L Luo, H B Du, Zuojiong Gong, H Guo, F Jiang, W Lu, H Z Yang, D Q Zhou, Fei Li, Xiaomei Li, Y T Jiao, J M Jiang, F. Li, Z B Hu, L C Wang, W B Shi, X H Sun, P Guo, Y A Ye, H Jin, M X Zhang, G D Tong, C B Wang, Z H Zhou, Y J Zheng, X Z Yang, X Deng, D W Mao, L. S. Wang, Y Li, W Q Shi, Q. J. Li, Hui Wang, X Y Hu, X W Zhang, X K Li, and G Zhao
- Subjects
0301 basic medicine ,Adult ,Liver Cirrhosis ,Male ,Serum ,medicine.medical_specialty ,HBsAg ,China ,Disease ,medicine.disease_cause ,Hepatitis b surface antigen ,Gastroenterology ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Hepatitis B, Chronic ,Fibrosis ,Virology ,Internal medicine ,medicine ,Humans ,Hepatitis B e Antigens ,Hepatitis B virus ,Hepatitis B Surface Antigens ,Hepatology ,business.industry ,virus diseases ,Alanine Transaminase ,Hepatitis B ,Middle Aged ,medicine.disease ,digestive system diseases ,Confidence interval ,030104 developmental biology ,Infectious Diseases ,HBeAg ,DNA, Viral ,030211 gastroenterology & hepatology ,Female ,business - Abstract
The kinetics of serum hepatitis B surface antigen (HBsAg) during the natural history of hepatitis B virus (HBV) infection has been studied, but the factors affecting them remain unclear. We aimed to investigate the factors affecting HBsAg titres, using data from multicentre, large-sized clinical trials in China. The baseline data of 1795 patients in 3 multicentre trials were studied, and the patients were classified into 3 groups: hepatitis B early antigen (HBeAg)-positive chronic HBV infection (n = 588), HBeAg-positive chronic hepatitis B (n = 596), and HBeAg-negative chronic hepatitis B (n = 611). HBsAg titres in the different phases were compared, and multiple linear progression analyses were performed to investigate the implicated factors. HBsAg titres varied significantly in different phases (P = .000), with the highest (4.60 log10 IU/mL [10%-90% confidence interval: 3.52 log10 IU/mL-4.99 log10 IU/mL]) in patients with HBeAg-positive chronic HBV infection. In all phases, age and HBV DNA were correlated with serum HBsAg level. In HBeAg-positive chronic hepatitis B patients, a negative correlation between HBsAg titres and fibrosis stage was observed. Alanine amonitransferase or necroinflammatory activity was also correlated with HBsAg titres in HBeAg-negative chronic hepatitis B patients. In conclusion, decreased HBsAg titres may be associated with advancing fibrosis in HBeAg-positive chronic hepatitis B patients or increased necroinflammation in those with HBeAg-negative chronic hepatitis B. Our findings may help clinicians better understand the kinetics of HBsAg and provide useful insights into the management of this disease.
- Published
- 2018
49. The photocatalytic degradation of CH4 by Ag-Bi2WO6 under visible light
- Author
-
S. Y. Huang, L. C. Wang, and W. Y. Wu
- Subjects
Materials science ,Absorption spectroscopy ,Mechanical Engineering ,chemistry.chemical_element ,Condensed Matter Physics ,Photochemistry ,Hydrothermal circulation ,Catalysis ,chemistry ,Mechanics of Materials ,Photocatalysis ,General Materials Science ,Irradiation ,Photodegradation ,Titanium ,Visible spectrum - Abstract
0–2·5% Ag-Bi2WO6 was successfully synthesised by a mildly hydrothermal method. The prepared catalysts were loaded onto the surface of self-made titanium mesh by the dip-coating technique. The resultant products were characterised by X-ray diffraction and UV–vis absorption spectroscopy. Their photocatalytic activities were evaluated by photodegradation of CH4 under visible-light irradiation (λ > 400 nm). Experimental results showed that 1% Ag-Bi2WO6 held the highest photocatalytic activities with CH4 degradation rate up to 50·10% under 15 A current for 450 minutes.
- Published
- 2015
50. Intelligent Fashion Recommender System: Fuzzy Logic in Personalized Garment Design
- Author
-
Y. Chen, Ludovic Koehl, Xianyi Zeng, and L. C. Wang
- Subjects
Neuro-fuzzy ,Relation (database) ,Computer Networks and Communications ,business.industry ,Computer science ,Fuzzy set ,Decision tree ,Human Factors and Ergonomics ,Recommender system ,Machine learning ,computer.software_genre ,Fuzzy logic ,Fuzzy cognitive map ,Computer Science Applications ,Human-Computer Interaction ,Artificial Intelligence ,Control and Systems Engineering ,Signal Processing ,Artificial intelligence ,business ,Set (psychology) ,computer - Abstract
This paper proposes a new intelligent fashion recommender system to select the most relevant garment design scheme for a specific consumer in order to deliver new personalized garment products. This system integrates emotional fashion themes and human perception on personalized body shapes and professional designers’ knowledge. The corresponding perceptual data are systematically collected from professional using sensory evaluation techniques. The perceptual data of consumers and designers are formalized mathematically using fuzzy sets and fuzzy relations. The complex relation between human body measurements and basic sensory descriptors, provided by designers, is modeled using fuzzy decision trees. The fuzzy decision trees constitute an empirical model based on learning data measured and evaluated on a set of representative samples. The complex relation between basic sensory descriptors and fashion themes, given by consumers, is modeled using fuzzy cognitive maps. The combination of the two models can provide more complete information to the fashion recommender system, making it possible to evaluate if a specific body shape is relevant to a desired emotional fashion theme and which garment design scheme can improve the image of the body shape. The proposed system has been validated in a customized design and mass market selection through the evaluations of target consumers and fashion experts using a method frequently used in marketing study.
- Published
- 2015
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.