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Search Results: 1 - 10 of 7768 matches for " Xiaoyang Wan "
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Candidiasis Treatment Should Pay Attention to the Immune Changing Patients  [PDF]
Xiaoyang Yang, Mengjie Wan, Fangping Chen
Open Journal of Internal Medicine (OJIM) , 2016, DOI: 10.4236/ojim.2016.62007
Abstract: The guideline of the Infectious Diseases Society of America (IDSA) about candidiasis is a key standard for clinical doctors to treat patients, and textbook to teach medical students. However, in the progress of clinical treatment and documents checking, the immune changing patients, who suffered candidiasis, may be mismatched to the clinical treatment guidelines. The opinion could be shown by the literature of gastrointestinal system, and respiratory system, which suffered severely fungal infection mostly, mainly connected with the outside world and inside organ systems of the human body. They could show some patients have been excess treatment, and we should pay attention to the immune changing patients.
Study on the Pension Rights of Families That Have Lost Their Only Child  [PDF]
Xiaoyang Zhang
Beijing Law Review (BLR) , 2015, DOI: 10.4236/blr.2015.61003
Abstract: According to incomplete statistics, the number of families that have lost their only child had reached more than one million in China currently, following an annual increase by 76,000. The problem of elder care of these families that have lost their only child has become a hot issue in China. Legislation and relevant policies about families that have lost their only child are not sufficient, which have caused the lack of basis on establishing a reasonable elder care system of those families. This paper is aiming to address the rights as a core and further supplement on the basis of the present situation of families that have lost their only child, therefore implement to build the pension right system of loss of only child families. Meanwhile, we also strive to put forward specific advices on establishing legislation and relevant policies.
Molecular Dynamics Simulations of DOPC Lipid Bilayers: The Effect of Lennard-Jones Parameters of Hydrocarbon Chains  [PDF]
Anping Liu, Xiaoyang Qi
Computational Molecular Bioscience (CMB) , 2012, DOI: 10.4236/cmb.2012.23007
Abstract: The current Chemistry at Harvard Molecular Mechanics (CHARMM) force field cannot accurately describe the properties of unsaturated phospholipid membranes. In this paper, a series of simulations was performed in which the Lennard- Jones (L-J) parameters of lipid acyl chains of dioleoylphosphatidylcholine (DOPC) were systematically adjusted. The results showed that adjustment of the L-J parameters in lipid acyl chains can significantly improve the current CHARMM force field. It was found that the L-J parameters have different influences on the order parameters of the top half and bottom half of the chain, separated by the cis double bond. The order parameters of the top half and the bottom half of the chain are related to the area/lipid and the length of the chain, respectively.
Power Balance of Multi-Harmonic Components in Nonlinear Network  [PDF]
Binghua Huang, Xiaoyang He
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.514132

The main harmonic components in nonlinear differential equations can be solved by using the harmonic balance principle. The nonlinear coupling relation among various harmonics can be found by balance theorem of frequency domain. The superhet receiver circuits which are described by nonlinear differential equation of comprising even degree terms include three main harmonic components: the difference frequency and two signal frequencies. Based on the nonlinear coupling relation, taking superhet circuit as an example, this paper demonstrates that the every one of three main harmonics in networks must individually observe conservation of complex power. The power of difference frequency is from variable-frequency device. And total dissipative power of each harmonic is equal to zero. These conclusions can also be verified by the traditional harmonic analysis. The oscillation solutions which consist of the mixture of three main harmonics possess very long oscillation period, the spectral distribution are very tight, similar to evolution from doubling period leading to chaos. It can be illustrated that the chaos is sufficient or infinite extension of the oscillation period. In fact, the oscillation solutions plotted by numerical simulation all are certainly a periodic function of discrete spectrum. When phase portrait plotted hasn’t finished one cycle, it is shown as aperiodic chaos.

Discontinuous Legendre Wavelet Galerkin Method for One-Dimensional Advection-Diffusion Equation  [PDF]
Xiaoyang Zheng, Zhengyuan Wei
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.69141
Abstract: This paper presents discontinuous Legendre wavelet Galerkin (DLWG) approach for solving one-dimensional advection-diffusion equation (ADE). Variational formulation of this type equation and corresponding numerical fluxes are devised by utilizing the advantages of both the Legendre wavelet bases and discontinuous Galerkin (DG) method. The distinctive features of the proposed method are its simple applicability for a variety of boundary conditions and able to effectively approximate the solution of PDEs with less storage space and execution. The results of a numerical experiment are provided to verify the efficiency of the designed new technique.
Estimates of Approximation Error by Legendre Wavelet  [PDF]
Xiaoyang Zheng, Zhengyuan Wei
Applied Mathematics (AM) , 2016, DOI: 10.4236/am.2016.77063
Abstract: This paper first introduces Legendre wavelet bases and derives their rich properties. Then these properties are applied to estimation of approximation error upper bounded in spaces \"\"?and \"\"?by norms \"\"?and \"\"?, respectively. These estimate results are valuable to solve integral-differential equations by Legendre wavelet method.
Compressive Behavior of Steel Members Reinforced by Patch Plate with Welding and Bonding  [PDF]
Xiaoyang Liu, Mikihito Hirohata
Open Journal of Civil Engineering (OJCE) , 2018, DOI: 10.4236/ojce.2018.84026
Abstract: Repair and reinformcement of aged civil steel structures is one of the important issues for maintaining and using them for a long term. For repair and reinforcement of deteriorated civil steel structures due to fatigue and corrosion, patch plate reinforcement is widely applied. Bolting is generally used because of easy quality control and many construction achievements. However, bolting has downsides including holes made and weight increase. Welding is considered to overcome these demerits but in reality the application of welding is unsatisfactory due to the possibility of fatigue crack occurring from the welded part. In this study, a patch plate strengthening system of welded joint assisted with bonding has been proposed. The compressive behaviors of weld-bond jointed specimen were investigated by a series of experiments and FE analysis. It was confirmed that use of welding and bonding was effective to enhance compressive strength of specimen, due to better load-carrying capacity of patch plate compared with sole use of welding.
Negative Feedback Regulation of Wnt4 Signaling by EAF1 and EAF2/U19
Xiaoyang Wan,Wei Ji,Xue Mei,Jiangang Zhou,Jing-xia Liu,Chengchi Fang,Wuhan Xiao
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0009118
Abstract: Previous studies indicated that EAF (ELL-associated factor) family members, EAF1 and EAF2/U19, play a role in cancer and embryogenesis. For example, EAF2/U19 may serve as a tumor suppressor in prostate cancer. At the same time, EAF2/U19 is a downstream factor in the non-canonical Wnt 4 signaling pathway required for eye development in Xenopus laevis, and along with EAF1, contributes to convergence and extension movements in zebrafish embryos through Wnt maintenance. Here, we used zebrafish embryos and mammalian cells to show that both EAF1 and EAF2/U19 were up-regulated by Wnt4 (Wnt4a). Furthermore, we found that EAF1 and EAF2/U19 suppressed Wnt4 expression by directly binding to the Wnt4 promoter as seen in chromatin immunoprecipitation assays. These findings indicate that an auto-regulatory negative feedback loop occurs between Wnt4 and the EAF family, which is conserved between zebrafish and mammalian. The rescue experiments in zebrafish embryos showed that early embryonic development required the maintenance of the appropriate levels of Wnt4a through the feedback loop. Others have demonstrated that the tumor suppressors p63, p73 and WT1 positively regulate Wnt4 expression while p21 has the opposite effect, suggesting that maintenance of appropriate Wnt4 expression may also be critical for adult tissue homeostasis and prevention against tumor initiation. Thus, the auto-regulatory negative feedback loop that controls expression of Wnt4 and EAF proteins may play an important role in both embryonic development and tumor suppression. Our findings provide the first convincing line of evidence that EAF and Wnt4 form an auto-regulatory negative feedback loop in vivo.
On the fundamental groups of compact Sasakian manifolds
Xiaoyang Chen
Mathematics , 2011,
Abstract: We study the fundamental groups of compact Sasakian manifolds, which we call Sasaki groups. It is shown that all known K$\ddot{a}$hler groups are Sasaki, in particular, all finite groups are Sasaki. On the other hand, we show there exists many restrictions on the fundamental groups of compact Sasakian manifolds. We also study the Abel-Jacobi map of a compact Sasakian manifold and its applications to Sasaki groups.
Theorems of Barth-Lefschetz type in Sasakian geometry
Xiaoyang Chen
Mathematics , 2011,
Abstract: In this paper we obtain theorems of Barth-Lefschetz type in Sasakian geometry. As corollaries, this implis connectedness principle and Frankel's type theorem.
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