Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 30 )

2018 ( 267 )

2017 ( 268 )

2016 ( 255 )

Custom range...

Search Results: 1 - 10 of 14297 matches for " Zhiyi Lei "
All listed articles are free for downloading (OA Articles)
Page 1 /14297
Display every page Item
Analysis on Pollution Factors of Urban River  [PDF]
Zhiyi Lei
Journal of Geoscience and Environment Protection (GEP) , 2015, DOI: 10.4236/gep.2015.310002

Main pollutants of the urban scenic river in Nanjing City are studied in this paper. In the study area a total of 39 monitoring points are set in natural water, around pumping stations and near the tail water of sewage treatment plant. Through the monitoring of pollution sources of receiving conventional index, the pollution sources distribution and river pollution factors are detailed analyzed, as nutrient salts, heavy metals, and environmental endocrine disruptors. And sources of the pollution factors are analyzed by principal component analysis to get the main pollution factors in this channel.

Deposit Insurance System and the Commercial Bank Loan Loss Provisions  [PDF]
Zhiyi Wang
Modern Economy (ME) , 2019, DOI: 10.4236/me.2019.101012
The article mainly analyzes the deposit insurance system in our country promulgated after the provision for the impact of bank loan loss provisions. Empirical study found that the deposit insurance system in our country was promulgated in 2015, the bank’s loan loss provisions increased, among them, the big bank loan loss provisions significantly increased. After separating the manipulated loan loss provisions, we found that the manipulated loan loss provisions increased. Further study found that, following the promulgation of the deposit insurance system, managers in commercial bank weakened the motive of income smoothing, but the bank’s capital management behavior does not.
Electroacupuncture pretreatment induces tolerance against focal cerebral ischemia through activation of canonical Notch pathway
Zhao Yu,Chen Xiyao,Ma Lei,Zuo Zhiyi
BMC Neuroscience , 2012, DOI: 10.1186/1471-2202-13-111
Abstract: Background Electroacupuncture (EA) pretreatment can induce the tolerance against focal cerebral ischemia. However, the underlying mechanisms have not been fully understood. Emerging evidences suggest that canonical Notch signaling may be involved in ischemic brain injury. In the present study, we tested the hypothesis that EA pretreatment-induced tolerance against focal cerebral ischemia is mediated by Notch signaling. Results EA pretreatment significantly enhanced Notch1, Notch4 and Jag1 gene transcriptions in the striatum, except Notch1 intracellular domain level, which could be increased evidently by ischemia. After ischemia and reperfusion, Hes1 mRNA and Notch1 intracellular domain level in ischemic striatum in EA pretreatment group were increased and reached the peak at 2 h and 24 h, respectively, which were both earlier than the peak achieved in control group. Intraventricular injection with the γ-secretase inhibitor MW167 attenuated the neuroprotective effect of EA pretreatment. Conclusions EA pretreatment induces the tolerance against focal cerebral ischemia through activation of canonical Notch pathway.
Distributed Middlebox Placement Based on Potential Game  [PDF]
Yongwen Li, Zhiyi Qu
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2017, DOI: 10.4236/ijcns.2017.105B026
In this paper, we analyse the deployment of middlebox. For a given network information and policy requirements, an attempt is made to determine the optimal location of middlebox to achieve the best performance. In terms of the end-to-end delay as a performance optimization index, a distributed middlebox placement algorithm based on potential game is proposed. Through extensive simulations, it demonstrates that the proposed algorithm achieves the near-optimal solution, and the end-to-end delay decreases significantly.
Genetic Polymorphism in PDE4D Gene and Risk of Ischemic Stroke in Chinese Population: A Meta-Analysis
Xu Liu, Ruixia Zhu, Lei Li, Shumin Deng, Qu Li, Zhiyi He
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0066374
Abstract: Background Stroke is the second most common cause of death and major cause of disability worldwide. The SNP 83 in PDE4D gene has been suggested as a risk factor in ischemic stroke, but direct evidence from genetic association studies remains inconclusive even in Chinese population. Methods Meta-analysis of case-control studies on the relationship between SNP 83 in PDE4D gene and susceptibility to ischemic stroke in Chinese population published domestically and abroad from January 2003 to September 2012. Results 9 case-control studies were selected. Meta-analysis results showed that the significant association between SNP 83 and ischemic stroke was found under the dominant model (OR = 1.34, 95% CI: 1.20–1.49) and recessive model (OR = 1.45, 95% CI: 1.19–1.76) in Chinese population. In subgroup meta-analysis, SNP 83 and atherothrombotic stroke, rather than lacunar stroke, showed the significant association under the dominant model (OR = 1.69, 95% CI: 1.41–2.01) and recessive model (OR = 1.47, 95% CI: 1.04–2.06). Conclusions The results suggest that SNP 83 in PDE4D gene is significantly associated with susceptibility to ischemic stroke in Chinese population.
Supercontinuum generation and carrier envelope offset frequency measurement in a tapered single-mode fiber
Long Zhang,Hainian Han,Yanying Zhao,Lei Hou,Zijiao Yu,Zhiyi Wei
Physics , 2014, DOI: 10.1007/s00340-014-5942-7
Abstract: We report supercontinuum generation by launching femtosecond Yb fiber laser pulses into a tapered single-mode fiber of 3 um core diameter. A spectrum of more than one octave, from 550 to 1400 nm, has been obtained with an output power of 1.3 W at a repetition rate of 250 MHz, corresponding to a coupling efficiency of up to 60%. By using a typical f-2f interferometer, the carrier envelope offset frequency was measured and found to have a signal-to-noise ratio of nearly 30 dB.
Are volatile anesthetics neuroprotective or neurotoxic?
Zhiyi Zuo
Medical Gas Research , 2012, DOI: 10.1186/2045-9912-2-10
Abstract: More than 20 millions of patients each year have surgeries in the USA. The majority of these surgeries are performed under general anesthesia. About 80% of them receive volatile anesthetics as their primary anesthetics [1]. Since the first use of ether, a volatile anesthetic, in 1842, volatile anesthetics have be the major class of general anesthetics used in the clinical practice for near 160 years.Although it is still controversial among the experts, it is generally accepted that general anesthesia minimally includes the following components: unconsciousness, insensateness, analgesia and amnesia. Many experts will also add muscle relaxation and bluntness of cardiovascular response to surgical stimulation into the components of general anesthesia. Volatile anesthetics, unlike most intravenous anesthetics, have pharmacological properties to provide all components of general anesthesia [2]. Thus, volatile anesthetics are full general anesthetics and, theoretically, single volatile anesthetic can be used to provide a patient with full general anesthesia for surgery. In addition, volatile anesthetics take effects very quickly. Most patients anesthetized by these drugs recover smoothly and quickly. With the aid of modern equipment, their use is very easy and their concentrations can be accurately monitored. For these reasons, volatile anesthetics have been popular drugs used in clinical practice. Modern volatile anesthetics that are used in the USA include isoflurane (CHF2-O-CHCl-CF3), sevoflurane (CH2F-O-CH-(CF3)2) and desflurane (CHF2-O-CHF-CF3). Halothane (CF3-CHBrCl) was used clinically for more than 40 years and started to be phased out during 1990s as newer volatile anesthetics become popular. All of these volatile anesthetics are halogenated hydrocarbons.In addition to the anesthetic properties, volatile anesthetics have been thought to have neuroprotective effects for a long time [3,4]. Although the potential for volatile anesthetics to induce cell injury has be
Study on the Actuality and the Countermeasures of the Employment of College Students
Zhiyi Fan
International Education Studies , 2008, DOI: 10.5539/ies.v1n2p41
Abstract: The employment of college students has become an issue that draws common concern from the whole society. This paper explores the employment of college students from various angles, finds out the material reasons thereto and put forwards countermeasures for resolving theses problems and development ways.
Research on the Social Demand for Business Management Talents
Zhiyi Fan
International Journal of Business and Management , 2009, DOI: 10.5539/ijbm.v3n4p62
Abstract: In order to deepen the reform on the education and cultivation of business management major, explore a new mode for cultivating graduate talents, and improve the major’s teaching and cultivating quality, we make a special research on the social demand for business management talents.
A Study of How to Develop Students’Intercultural Communication Competence (ICC) in Business English Teaching (BET)
Zhiyi Fu
Asian Social Science , 2009, DOI: 10.5539/ass.v4n2p84
Abstract: Under the economic globalization today, the ultimate goal of business English teaching is to develop students’ language transfer competence in the intercultural communication environment and improve the strategies of the Business English Major students in dealing with the international business affairs. After presenting the intercultural issues in current China’s Business English teaching, the study focuses on five constructive suggestions of the workable strategies of how to develop students’ intercultural communication competence (ICC) in the Business English teaching (BET).
Page 1 /14297
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.