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Search Results: 1 - 10 of 104232 matches for " Hairong Zhang "
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Institutional Distance, Investment Motivation and OFDI Location—Taking the Countries along the “Belt and Road” as an Example  [PDF]
Hairong Zhang
Open Journal of Social Sciences (JSS) , 2019, DOI: 10.4236/jss.2019.72009
Abstract: This paper selects 2008-2017 years of relevant investment data and uses the expanded gravity model to conduct an empirical analysis to explore the moderating effect of China’s investment motivation and institutional distance on the countries with different levels of development along the “Belt and Road”. The main innovation of this paper is to classify the countries in different economic development stages along the “Belt and Road” countries. On the basis of investment motives, this paper discusses how institutional distance is used as a regulatory variable to affect the investment of different motives. The results show that small distance between the host country and China’s normative system promotes the expansion of China’s investment scale. The distance between regulatory regimes has a reverse regulatory effect on investment driven by market size. For the middle and high income countries, the negative impact of regulatory distance on labor force and technology factor-seeking investment is particularly significant, while for low-income countries, regulatory distance has a very significant positive regulatory effect on natural resource-seeking investment. Finally, this paper provides targeted recommendations based on the conclusions to help investors reduce risk. Investors should make good use of the effect of institutional distance according to their own motives in order to reduce investment costs and risks. Relevant departments need to further improve the domestic regulatory environment and promote the development of OFDI in the future.
The Effect of Sodium Nitrite on Induction of Apoptosis in Human Gastric Adenocarcinoma Epithelia (AGS) Cells  [PDF]
Yanchao Liu, Qiliang Qin, Agula Bo, Hairong Zhang, Qing Zhang, Wenli Hao, Yueling Hu, Juan Sun
Pharmacology & Pharmacy (PP) , 2015, DOI: 10.4236/pp.2015.611052
Abstract: To examine the cytocidal effect of sodium nitrite on the cancer cell, we subjected human gastric adenocarcinoma epithelia (AGS) cells to various experimentation following exposure to sodium nitrite, and measured the resulting changes in the levels of cell death, lactate dehydrogenase (LDH) release, and caspase-3, -6, -8, and -9 activities. Our data revealed that, in AGS cells, treatment with ≥6.25 mM sodium nitrite for 8 h resulted in an obvious increase in cell death. LDH release was also markedly increased following sodium nitrite treatment, but at a concentration of ≥6.25 mM for 24 h. This increasing trend showed a positive correlation (r = 0.9564, P < 0.05). In addition, we detected pronounced increases in caspase activities with various concentrations of sodium nitrite: caspase-3 at ≥25 mM for 1 h, ≥12.5 mM for 3 h and 6 h; caspase-9 at 50 mM for 1 h and 3 h, and ≥6.25 mM for 6 h; and caspase-6 at 50 mM for 1 h and 3 h. We did not however, detect any observable increase in the activity of caspase-8 following sodium nitrite treatment at any concentration or for any duration of treatment in this study. This data demonstrates that, in AGS cells, higher concentrations or longer durations of treatment with sodium nitrite could exhibit a cytocidal effect, and that sodium nitrite could induce apoptosis via activation of the caspase-9, caspase-3 cascade (intrinsic pathway) and caspase-6.
A Modified Speech Blind Separation Method Based on Information Maximum
Xueying Zhang,Hairong Jia,Hong Xu
Journal of Networks , 2010, DOI: 10.4304/jnw.5.12.1450-1457
Abstract: A new algorithm based on information maximization is proposed, against the shortcomings of traditional speech blind source separation of low convergence rate and high crosstalk error. It uses the new sgn function to make mutual information of input and output to maximize by analyzing a variety of non-linear function of the separation performance, and advances based sgn function BSS with fixed step-size and adaptive variable step-size. Experiments show that the new algorithm has advantages, such as fast convergence, small crosstalk error and good separation efficiency which compared with traditional methods of Be11’s and Sejnowskl’s.
Cloning, Sequencing and Analysis of Melatonin Receptor Subtype MT1 in Hypothalamus-Pituitary-Gonadal Axis and Pineal of Female Bactrian Camel
Hu Junjie,Zhang Yong,Wang Junying,Zhao Xingxu,Zhang Hairong
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2012.470.474
Abstract: It is well known that melatonin is a coordinating signal for mammalian reproduction. In order to confirm the presence of melatonin receptors in hypothalamus-pituitary-gonadal axis and pineal of female Bactrian camel, the researchers used a Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR) procedure to examine receptor MT1 expression. The length of MT1 gene was 452 bp. RT-PCR assaying revealed the presence of the mt1 (Mel1a) melatonin receptor subtype in reproduction axis and pineal which were obtained from the slaughterhouse in the Ningxia Autonomous Region, China. Sequence has been confirmed a high identity (above 85%) with melatonin receptor MT1 of other mammal known in GenBank. Comparing with other tissue s sequences, one base substitution changed the 108th TTC codon (encoding Phenylalanine) to TAC (Tyrosine) on hypothalamus. Although, there are base substitutions in pineal s gene, encoded amino acid are coincident with pituitary and ovary. The current results, the expression of MT1 receptor mRNA in brain and ovary, suggest that melatonin regulate reproduction function through not only neuroendocrine but also directly acting on the ovary in Bactrian camel.
The Differences in Alcohol Use between Urban and Rural Students of Inner Mongolia Medical University, China  [PDF]
Zhihui Hao, Peng Qin, Yongjun Xu, Qingxia Wang, Hairong Zhang, Yun Li, Yueling Hu, Xiaodong Bi, Juan Sun
Open Journal of Epidemiology (OJEpi) , 2016, DOI: 10.4236/ojepi.2016.62014
Abstract: Objective: The purpose of this study was to evaluate the difference in alcohol use between urban and rural students of Inner Mongolia Medical University. Methods: A cross-sectional census was conducted on medical students on campus in 2013. We use multivariate logistic regression models to assess the factors associated with alcohol use. We further use chi-square test assess on differences in alcohol use between urban and rural people among significance factors in logistic regression models. Results: The prevalence of alcohol use among students in rural area was higher than that in urban area (p = 0.016). Alcohol use was associated with Gender, monthly expenses, residence, ethnic and faculty. The odds of alcohol use for Mongolia students were 1.139 times higher than that for Han students. The prevalence of alcohol consumption among students from pharmacy or Traditional Chinese Medicine and Mongolian Medicine faculties in rural area was higher than that among student in urban area (p = 0.03; p = 0.001). The prevalence of alcohol use among female students in rural area was higher than that among female students in urban area (p < 0.043). The proportion of alcohol use among students with <600 in rural area was higher than that among students in urban area (p < 0.001). Conclusion: Considering the differences in the prevalence of alcohol use between rural area and urban area, university administrators aiming at students from various regions develop various approaches.
Mineral deformation and subglacial processes on ice-bedrock interface of Hailuogou Glacier
GengNian Liu,YiXin Chen,Yue Zhang,HaiRong Fu
Chinese Science Bulletin , 2009, DOI: 10.1007/s11434-009-0289-x
Abstract: Hailuogou Glacier is located in a warm and humid maritime environment. It is large and moves very fast. The bottom of the glacier slides intensively and the temperature at the bottom approaches the pressure melting point. Therefore, there are abundant melting water and debris which act as effective “grinding tools” for glacial abrasion. Polarizing microscope is used to observe the mineral deformation characteristics on the ice-bedrock interface. It is found that feldspar, quartz, hornblende and biotite are exposed to deformation, fracture and chemical alteration to various extents. Bending deformation is common for biotite, due to their lattice characteristics, and the bending orientations are mostly the same as the glacier flow. Bending deformation also occurs in a few hornblendes. High-angle tension fracture and low-angle shear fracture are common for quartz and feldspar, some of them are totally crushed (mylonizations) due to their rigidity. Thus, all the abrasion, quarrying, subglacial water action and subglacial dissolution processes at the bottom of the glacier are verified at the micro-scale level. Mineral deformation and fracture are the basic subglacial erosion mechanisms. The abrasion thickness is 30–90 μm for each time and the average is 50 μm. Most of the debris are silt produced by glacial abrasion. The extent of mineral deformation and fracture decreases drastically downwards beneath the bedrock surface. The estimated erosion rate is about 2.2–11.4 mm/a, which is similar to that of other maritime alpine glaciers, smaller than that of large-scale piedmont glaciers in Alaska (10–30 mm/a), and larger than that of continental glaciers (0.1–1.0 mm/a). The type and size of a glacier are the main factors that influence its erosion rate.
Socio-Economic Factors of Bacillary Dysentery Based on Spatial Correlation Analysis in Guangxi Province, China
Chengjing Nie, Hairong Li, Linsheng Yang, Gemei Zhong, Lan Zhang
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0102020
Abstract: Background In the past decade, bacillary dysentery was still a big public health problem in China, especially in Guangxi Province, where thousands of severe diarrhea cases occur every year. Methods Reported bacillary dysentery cases in Guangxi Province were obtained from local Centers for Diseases Prevention and Control. The 14 socio-economic indexes were selected as potential explanatory variables for the study. The spatial correlation analysis was used to explore the associations between the selected factors and bacillary dysentery incidence at county level, which was based on the software of ArcGIS10.2 and GeoDA 0.9.5i. Results The proportion of primary industry, the proportion of younger than 5-year-old children in total population, the number of hospitals per thousand persons and the rates of bacillary dysentery incidence show statistically significant positive correlation. But the proportion of secondary industry, per capital GDP, per capital government revenue, rural population proportion, popularization rate of tap water in rural area, access rate to the sanitation toilets in rural, number of beds in hospitals per thousand persons, medical and technical personnel per thousand persons and the rate of bacillary dysentery incidence show statistically significant negative correlation. The socio-economic factors can be divided into four aspects, including economic development, health development, medical development and human own condition. The four aspects were not isolated from each other, but interacted with each other.
Time-consistent mean-variance strategy selection for claims dependent risk model

,ZHANG Hairong

- , 2017,
Abstract: 在通货膨胀影响下,研究了一类理赔相依风险模型的,时间一致的最优策略选择问题。两种理赔的相依性通过一个共同的泊松过程来体现。为了减小风险,保险人可以进行再保险;为了增加财富,保险人可以在金融市场上进行投资。进行投资时,考虑了通货膨胀的影响,通货膨胀的影响是通过通货膨胀率对风险资产折算实现的。研究的目标是:保险人选择时间一致的最优再保险-投资策略,最大化终止时刻财富的均值,同时最小化终止时刻财富的方差。因为该问题是时间不一致的,从博弈论的视角对问题进行了求解。应用Hamilton-Jacobi-Bellman动态规划的方法,得到了时间一致的最优再保险-投资策略和相应值函数的显式解。最后通过数值计算,解释了一些保险市场模型参数对最优再保险策略影响,以及金融市场模型参数和通货膨胀模型参数对最优投资策略的影响。通过研究,可以指导投资者在通货膨胀的影响下进行合理投资,使自身财富最大而风险最小
Analysis of Cause of Death in Inner Mongolia of China, 2008-2014  [PDF]
Shuli Xing, Zhiqiang Sun, Maolin Du, Xuesen Shi, Hairong Zhang, Zhanlong Wang, Xiaoyan Zhang, Zhihui Hao, Zhuang Su, Ying Yang, Rong Liu, Yueling Hu, Juan Sun
Open Journal of Epidemiology (OJEpi) , 2017, DOI: 10.4236/ojepi.2017.71002
Abstract: Objective: The aim of our study was to analyze the character of cause of death in Inner Mongolia of China from 2008 to 2014. Methods: We collected data from monitoring points of the Death Registry System (DRS) in Inner Mongolia. We calculated the mortality rates by gender, year and age-specific. We calculated the proportion, the mortality rate and potential years of life lost (PYLL) of various system deaths. Results: During the period 2008-2014, the average crude mortality rate of all cause of death was 539.33/105. The mortality rate increased semilogarithm linearly with age. The top four system deaths were circulatory system, neoplasm, respiratory system and injury. In 2014, the mortality rates of circulatory system were increased and the mortality rates of certain infectious and parasitic diseases, neoplasms, respiratory system, genitourinary system and injury were decreased compared to those in 2008. Conclusion: Through analysis the indicators of proportion, the mortality rate and PYLL indicated that health status of a population in Inner Mongolia was at a better level.
The Description of Pancreatic Cancer Death in Inner Mongolia 2008-2014  [PDF]
Xiaoyan Zhang, Ying Shi, Changqing Sun, Lei Guo, Hairong Zhang, Zhiyun Zhou, Dan Wang, Jing Yan, Linlin Dong, Qingxia Wang, Yueling Hu, Juan Sun
Open Journal of Epidemiology (OJEpi) , 2017, DOI: 10.4236/ojepi.2017.72012
Abstract: Objective: The study aimed to assess the characteristics of pancreatic cancer deaths and the relationship between socio-demographic status and mortality risk of pancreatic cancer in Inner Mongolia. Method: We obtained our data for 2008-2014 from the Death Registry System of Inner Mongolia. We calculated the mortality rate, potential years of life lost (PYLL) and average years of life lost (AYLL) for men and women. We collected socio-demographic characteristics including education level, ethnicity, region, and occupation. Logistic regression models were employed to analyze risk factors of pancreatic cancer. Results: The average mortality rate of pancreatic cancer was 4.42/100,000 in Inner Mongolia during 2008 to 2014. Mortality rate in men was higher in all age groups compared with those in women. The highest mortality rate was 1.3 times than the lowest mortality rate for men and 1.6 times for women during seven years. Average AYLL in women were more than 3.4 years compared with that in men. PYLLR in women was fluctuated from 0.41 to 0.63 per thousand during 2008 to 2014. In eastern region, no occupation and high education level had a higher risk of pancreatic cancer. Conclusion: In Inner Mongolia, the mortality rate associated with pancreatic cancer was higher in men compared with in women. More than 65 years old groups had high death risk for pancreatic cancer. Average years of life lost for women were significantly higher than that for men. We should pay more attention to the older men.
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