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Search Results: 1 - 10 of 33086 matches for " Aihua Guo "
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The Distribution and Morphology Alterations of Microfilaments and Microtubules in Mesophyll Cells and Root-Tip Cells of Wheat Seedlings under Enhanced Ultraviolet-B Radiation  [PDF]
Limei Gao, Yongfeng Li, Aihua Guo, Jingru Zhai, Rong Han
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.522358
Abstract:
The distribution and morphology alterations of microfilaments and microtubules in the mesophyll cells and root-tip cells of wheat seedlings, which had been radiated by enhanced ultraviolet-B (10.08 KJ·m-2·d-1), were examined through the confocal laser scanning microscope (Model FV1000, Olympus, Japan). Microtubule was labeled with an indirect immunofluorescence staining method, and microfilament was labeled with fluorescein isothiocyanate-phalloidin (FITC-Ph) as probes. The results indicated that microtubules in mesophyll cells, compared with the controls, would be depolymerized significantly, and dispersed randomly showing some spots or short rods in the cytoplasm, under the enhanced UV-B radiation condition. The microtubule bundles tended to be diffused, and the fluorescence intensity of that significantly decreased. The distribution pattern of microfilaments, which usually arranged parallelly in control cells, was broken up by enhanced UV-B radiation. We further investigated the distribution and morphology of microtubules in root-tip cells during every stage of cell division, and found that these aberrant phenomena of microtubules were often associated with abnormal cell division. Our findings suggested that the distribution, morphology and structure of cytoskeleton in mesophyll cells and root-tip cells of wheat seedlings would be affected by enhanced UV-B radiation, which might be related to abnormal cell division caused by enhanced UV-B radiation as an extracellular signal.
Analysis on the Growth Rhythm and Cold Tolerance of Five-Year Old Eucalyptus benthamii Plantation for Bioenergy  [PDF]
Aihua Yu, Tom Gallagher
Open Journal of Forestry (OJF) , 2015, DOI: 10.4236/ojf.2015.56052
Abstract: A research plot of Eucalyptus benthamii was planted to evaluate this species’ ability to supply the emerging bioenergy markets that are developing in the southern U.S. The plot was planted in two different densities to investigate the growth parameters and the cold tolerance. The stand was measured annually through five growing seasons. The results indicated that the growth difference among the young E. benthamii was noticeable. For example, the maximum and minimum value of five-year old trees at diameter breast height (DBH) was 27.9 centimeters and 1.27 centimeters; and the maximum and minimum value of tree height was 22.86 meters and 2.44 meters, respectively. The yearly change in DBH and height of E. benthamii had significant differences. The average annual survival rates of E. benthamii had differences under the two planting densities (1650 trees ha-1 and 1237 trees ha-1). The densities also had effects on the height and DBH growth of E. benthamii. The average DBH and height of 1650 trees ha-1 plantation were 11.18 centimeters and 15.03 meters, and the average DBH and height of 1237 trees ha-1 plantation were 13.46 centimeters and 16.28 meters. The volume per hectare of 1650 trees ha-1 and 1237 trees ha-1 plantation were 111.45 cubic meters and 101.15 cubic meters, respectively. Average diameter growth was almost 2.54 centimeters per year and average height growth was over 3 meters. E. benthamii plantations were considered tolerant to -7.4 degrees Celsius and a cold spell during early 2014 (-11.3 degrees Celsius for two consecutive nights) killed the plantation. The growth of E. benthamii also
Intelligent ZHENG Classification of Hypertension Depending on ML-kNN and Information Fusion
Guo-Zheng Li,Shi-Xing Yan,Mingyu You,Sheng Sun,Aihua Ou
Evidence-Based Complementary and Alternative Medicine , 2012, DOI: 10.1155/2012/837245
Abstract: Hypertension is one of the major causes of heart cerebrovascular diseases. With a good accumulation of hypertension clinical data on hand, research on hypertension's ZHENG differentiation is an important and attractive topic, as Traditional Chinese Medicine (TCM) lies primarily in “treatment based on ZHENG differentiation.” From the view of data mining, ZHENG differentiation is modeled as a classification problem. In this paper, ML-kNN—a multilabel learning model—is used as the classification model for hypertension. Feature-level information fusion is also used for further utilization of all information. Experiment results show that ML-kNN can model the hypertension's ZHENG differentiation well. Information fusion helps improve models' performance.
Preparation of PE/MMT nanocomposite by monomer intercalation and in situ copolymerization
Cunyue Guo,Zhi Ma,Mingge Zhang,Aihua He,Yucai Ke,Youliang Hu
Chinese Science Bulletin , 2002, DOI: 10.1360/02tb9280
Abstract: The catalyst [(2-ArN=C(Me))2C5H3N]FeCl2 (Ar = 2-C6H4(i-Pr)) with methylaluminoxane (MAO) as cocatalyst was intercalated between layers of montmorillonite (MMT) for ethylene oligomerization. Metallocene catalyst Me2Si(Ind)2ZrCl2 and MAO was then added to form a dual functional catalytic system. A PE/MMT nanocomposite was prepared by copolymerization of ethylene with α-olefins produced in situ from ethylene over the dual functional catalytic system. The catalytic system was of high polymeric activity. The resultant PE/MMT nanocomposites were stable and got increases in tensile strength and temperature of maximum weight loss (Tonset).
Maternal Serum Disintegrin and Metalloprotease Protein-12 in Early Pregnancy as a Potential Marker of Adverse Pregnancy Outcomes
Jiexia Yang, Jing Wu, Fangfang Guo, Dongmei Wang, Keyi Chen, Jie Li, Li Du, Aihua Yin
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0097284
Abstract: Objectives The aim of this study was to determine whether the concentration of disintegrin and metalloprotease protein12 (ADAM12) in first trimester maternal serum can be used as a marker for first-trimester complete spontaneous abortions, missed abortions, ectopic pregnancies and hydatidiform moles. Methods The maternal serum concentrations of ADAM12 were measured in the range of 5–9+6 weeks of gestation using an automated AutoDelfia immunoassay platform in 9 cases of complete spontaneous abortion, 27 cases of missed abortions, 56 cases of ectopic pregnancies, 12 cases of hydatidiform moles, and 100 controls. Logistic regression analysis was used to determine significant factors for predicting adverse pregnancy outcomes in early pregnancy. Screening performance was assessed using receiver operating characteristic curves. Results Two hundred and four women were enrolled in the study. In the control group, the level of ADAM12 increased with gestational age. The median ADAM12 levels in the spontaneous abortion (0.430 MoM), ectopic pregnancy (0.460 MoM) and hydatidiform mole (0.037 MoM) groups were lower than that in the control group, while the median ADAM12 level in the missed abortion group (1.062 MoM) was not significant from the controls (1.002 MoM). Logistic regression analysis demonstrated that the level of ADAM12 in maternal serum facilitated the detection of ectopic pregnancies (OR = 0.909; 95% CI = 0.841~0.982) and complete spontaneous abortion (OR = 0.863; 95% CI = 0.787~0.946). Conclusions In complete spontaneous abortion and ectopic pregnancy, ADAM12 maintained at low levels in early pregnancies, and there were significant differences compared to normal pregnancies. ADAM12 is a promising marker for the diagnosis of complete spontaneous abortion and ectopic pregnancy in symptomatic women, and under certain conditions, ADAM12 can diagnose ectopic pregnancy and spontaneous abortion before an ultrasonographic detection of the conditions.
Improved formula of coronal magnetic field strength diagnostic
Aihua Zhou
Chinese Science Bulletin , 1997, DOI: 10.1007/BF02882443
Abstract:
Diagnostics of magnetic field strength for gyrosynchrotron radiation regions of the lower harmonics
Aihua Zhou
Chinese Science Bulletin , 1998, DOI: 10.1007/BF02883221
Abstract: A diagnostic formula of magnetic field strength of gyrosynchrotron radiation regions of the lower harmonics (5 S 10) is presented based on their emissivity $\frac{{\eta _v }}{{BN}}$ , absorptivity $\frac{{k_v B}}{N}$ , and the turnover frequency of radio spectrav p . Their diagnostic error is estimated. And an accurate relation between electron energy spectral indexδ and brightness temperature spectral indexβ is also given.
Micro-Holistic Body Model: Reconciliation of Traditional Chinese Medicine With Modern Biomedicine?
Aihua Xie
Iranian Journal of Medical Hypotheses & Ideas , 2011,
Abstract: Development of molecular biology reveals that multicellular organism could be considered as a cell community. By scrutinizing constitution and activities of a single cell under context of the whole community, I got a micro-holistic body model constituted of two aspects and seven compartments. The two inseparable aspects are the extracellular signalling molecules and the cells that communicate with each other using extracellular signalling molecules. The seven compartments include three universal sub-cellular compartments running within every cell in the body and four specific systems comprised of specific cell groups and molecules providing particular services needed generally by cells in the body. The constitution and internal relationship of the model match the fundamentals of traditional Chinese medicine (TCM) perfectly, thus can philosophically bridge the understanding between traditional Chinese medicine and western medicine, provide research hypotheses, and connect molecular level research with clinical diagnosis and treatment of complex diseases more directly, and may cause profound revolution in human healthcare technology.
An Eco-translatological Perspective to Translator: A Case Study of Xu Chi
Aihua Liu
Theory and Practice in Language Studies , 2011, DOI: 10.4304/tpls.1.1.87-90
Abstract: Xu Chi is a writer and translator. He is known as a poet, essayist and “Father of Reportage” in China. In over sixties years, Xu Chi created a large volume of poems, essays, reportages, etc. and translated many foreign literary works into Chinese. An eco-translatological perspective to literary translator criticism emphasizes translator’s subjectivity with “translator-centeredness”. Xu Chi adapts to the demands of Translational Eco-environment and make selective adaptations and adaptive selections in linguistic, cultural and communicative dimensions. He translates with the pursuit of “doing things with translations” and integrates creation, criticism and translation. A comparatively high degree of selections and adaptations makes his translations well accepted and help to achieve “survival of the fittest”.
Science and Religion from the Perspective of Post-Modernism --- Knowledge System and Religious System
Aihua Xie
Asian Social Science , 2009, DOI: 10.5539/ass.v5n4p10
Abstract: All knowledge belongs to narrative knowledge, and also local knowledge. Post-modernism can be defined as “elimination of grand narrative”, so in the world of post-modernism, validity of knowledge has become an issue. Local knowledge emphasizes that generation and justification of knowledge has its local features, so it has no way to surpass the dilemma of cultural relativism. Theoretically, in this article, the author believes that the standpoint of “moderate relativism” is advisable, which, not only sufficiently respects cultural diversification and particularity of each nation, but emphasizes possibility and necessity of culturally mutual communication of all nations, which attains mutual understanding and recognition during participation and share.
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