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Search Results: 1 - 10 of 108000 matches for " Y. Yang "
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Regulatory Privacy Protection for Biomedical Cloud Computing  [PDF]
Y. Tony Yang, Kari Borg
Beijing Law Review (BLR) , 2012, DOI: 10.4236/blr.2012.34020
Abstract: This article provides background information on biomedical cloud computing. It examines the privacy concerns that arise from the use of biomedical cloud computing services and then surveys the current state of regulatory privacy safeguards for patients and consumers of these services both in the U.S and abroad. Finally, it identifies opportunities for legal and technological mechanisms to be implemented or reinforced so that patients and consumers are not forced to lose control of their information when they use biomedical cloud computing services.
Analysis for Pull-In Voltage of a Multilayered Micro-Bridge Driven by Electrostatic Force  [PDF]
Engineering (ENG) , 2010, DOI: 10.4236/eng.2010.21007
Abstract: A trial solution for bending deflection of a multilayered micro-bridge subject to a voltage induced load is presented. The relation between the applied voltage and the displacements of the micro-bridge in the pull-in state is analyzed by energy method. Furthermore, two analytical expressions about normalized displacement and pull-in voltage are carried out. It’s proved that the value of normalized displacement is not influenced by residual stress if axial and shear deformation is ignored. Finally, the theoretical results are compared with that of FEM, and they show good agreement.
Does Technical or Strategic HRM Provide a Better Explanation of Organization Performance?  [PDF]
Chien-Chang Yang, Carol Y. Y. Lin
iBusiness (IB) , 2014, DOI: 10.4236/ib.2014.62007

This study is to examine the ability of technical HRM versus strategic HRM in predicting organizational performance in the health care industry. A postal survey was distributed to the HR managers of all the hospitals in Taiwan, with a response rate of 56%. Hierarchical regression analyses were based on data from the 277 responding hospitals. From the result, we found that technical HRM is more important in explaining perceived organizational performance, and strategic HRM is better at predicting human capital accumulation. Technical HRM does not moderate the relationship between strategic HRM and perceived organizational performance, but it does moderate HR strategy and human capital accumulation.

An Evaluation Synthesis of US AIDS Drug Assistance Program Policy  [PDF]
Michael A. Horneffer, Y. Tony Yang
World Journal of AIDS (WJA) , 2013, DOI: 10.4236/wja.2013.32012

US Congress passed the CARE Act in 1990 in response to a dramatically growing need for resources to combat the AIDS epidemic. One of the programs contained in the Act was the AIDS Drug Assistance Program (ADAP), a federally-funded but state-maintained and managed program primarily concerned with providing medication for low-income HIV/AIDS patients. While ADAP programs across the country reached one-third of all patients in 2007, these programs are now in budgetary danger due to the economic recession, state budgetary constraints, the rising cost of healthcare generally, and longer life expectancies associated with current highly active antiretroviral therapy (HAART). This paper first evaluates the current state of ADAP, its strengths and weaknesses, and examines its sustainability in the short term if short-term measures are taken. Concluding that such measures would not lead to long-term sustainability, this paper then argues for a long-term solution to ADAP’s current problems, namely a national, centralized ADAP standard for budgetary and administrative matters. Such a program would increase the long-term sustainability and effectiveness of current ADAP programs by employing more efficient, standard policies and allowing larger, wholesale purchases of costly HAART medications. Moreover, a national policy would address the disparity that currently exists in ADAP programs today with regard to both minorities and those on the waiting lists for treatment. The institution of a national ADAP program would certainly face many political hurdles. Consequently, this paper also looks to a recent political dispute, the enactment of the Affordable Care Act (ACA), for guidance. Using the passage of the ACA as an example could light the path for passage of a national ADAP standard. Ultimately, this would lead to a more effective and sustainable program for HIV/AIDS patients in the United States.

Effect of the equilibrium pair separation on cluster structures
Y. Yang,D. Y. Sun
Physics , 2008, DOI: 10.4208/cicp.2009.v6.p730
Abstract: A simple pair potential, which equilibrium pair separation can be varied under a fixed interaction range, has been proposed. The new potential can make both face-centered-cubic(fcc) and body-centered-cubic(bcc) structure stable by simply changing one parameter. To investigate the general effect of the potential shape on cluster structures, the evolution of cluster structures is calculated for different equilibrium pair separations. The small size clusters($N<25$), which adopt the polytetrahedra, are almost independent on the details of the potential. For the large size clusters($25
Predicting protein disorder by analyzing amino acid sequence
Yang Jack Y,Yang Mary
BMC Genomics , 2008, DOI: 10.1186/1471-2164-9-s2-s8
Abstract: Background Many protein regions and some entire proteins have no definite tertiary structure, presenting instead as dynamic, disorder ensembles under different physiochemical circumstances. These proteins and regions are known as Intrinsically Unstructured Proteins (IUP). IUP have been associated with a wide range of protein functions, along with roles in diseases characterized by protein misfolding and aggregation. Results Identifying IUP is important task in structural and functional genomics. We exact useful features from sequences and develop machine learning algorithms for the above task. We compare our IUP predictor with PONDRs (mainly neural-network-based predictors), disEMBL (also based on neural networks) and Globplot (based on disorder propensity). Conclusion We find that augmenting features derived from physiochemical properties of amino acids (such as hydrophobicity, complexity etc.) and using ensemble method proved beneficial. The IUP predictor is a viable alternative software tool for identifying IUP protein regions and proteins.
Air-to-sea flux of soluble iron: is it driven more by HNO3 or SO2? – an examination in the light of dust aging
H. Yang,Y. Gao
Atmospheric Chemistry and Physics Discussions , 2007,
Abstract: Aeolian dust provides the major micronutrient of soluble Fe to organisms in certain regions of the global ocean. In this study, we conduct numerical experiments using the MOZART-2 atmospheric chemistry transport model to simulate the global distribution of soluble Fe flux and Fe solubility. One of the mechanisms behind the hypothesis of acid mobilization of Fe in the atmosphere is that the coating of acidic gases changes dust from hydrophobic to hydrophilic, a prerequisite of Fe mobilization. We therefore include HNO3, SO2 and sulfate (SO42 ) as dust transformation agents in the model. General agreement in Fe solubility within a factor of 2 is achieved between model and observations. The total flux of soluble Fe to the world ocean is estimated to be 731–924×109 g yr 1, and the average Fe solubility is 6.4–8.0%. Wet deposition contributes over 80% to total soluble Fe flux to most of the world oceans. Special attention is paid to the relative role of HNO3 versus SO2 and sulfate. We demonstrate that coating by HNO3 produces over 36% of soluble Fe fluxes compared to that by SO2 and sulfate combined in every major oceanic basin. Given present trends in the emissions of NOx and SO2, the relative contribution of HNO3 to Fe mobilization may get even larger in the future.
Uncertainty of the CO2 threshold for melting a hard Snowball Earth
Y. Hu,J. Yang
Climate of the Past Discussions , 2010, DOI: 10.5194/cpd-6-1337-2010
Abstract: One of the critical issues of the Snowball Earth hypothesis is how high level of CO2 is required for triggering the deglaciation. Using Community Atmospheric Model version 3 (CAM3), we study the problem for the CO2 threshold. Our simulations show large differences from previous results (Pierrehumbert, 2004, 2005). At 0.2 bars of CO2, the January maximum near-surface temperature is about 268 K, about 13 K higher than that in Pierrehumbert (2004, 2005), but lower than the value of 270 K for 0.1 bar of CO2 in Le Hir et al. (2007). It is found that the diversity of simulation results is mainly due to model sensitivity of greenhouse effect and longwave cloud forcing to increasing CO2. At 0.2 bar of CO2, CAM3 yields 117 Wm 2 of clear-sky greenhouse effect and 32 Wm 2 of longwave cloud forcing, versus only about 77 Wm 2 and 10.5 Wm 2 in Pierrehumbert (2004, 2005), respectively. CAM3 has comparable clear-sky greenhouse effect to that in Le Hir et al. (2007), but lower longwave cloud forcing. CAM3 also produces much stronger Hadley cells than in Pierrehumbert (2005).
Experimental Study on Formation Characteristics and Laws of Dislocation and Stacking Fault during Cutting of Titanium Alloy
Y. Yang,B. Llu
Advances in Materials Science and Engineering , 2013, DOI: 10.1155/2013/306728
Abstract: Formation characteristics and laws of dislocation and stacking fault during cutting of titanium alloy were investigated by TEM. Several crucial aspects of experiment, such as sample cutting, mechanical reduction of thickness, dimpling, and ion reduction of thickness, were carefully designed and implemented. Further, electron diffraction pattern, diffraction contrast image, and high resolution electron photomicrograph of phase and phase were observed and analyzed. Following those analyses, the formation characteristics and laws of dislocation and stacking fault were made clear. Research results show that the edge dislocations exist commonly in the diffraction contrast images and high resolution electron photomicrographs of phase and phase. The stacking fault energy is higher in phase than in phase. In addition, the extended dislocation is difficult to be seen in phase, but it is easier to be produced in phase. 1. Introduction Titanium alloys, specifically Ti6Al4V, are used widely in aerospace industry, which offer favorable mechanical characteristics such as high strength-to-weight ratio, toughness, superb corrosion resistance, and biocompatibility [1, 2]. But titanium alloys are also difficult to machine materials with considerable manufacturing problems [3]. The distortion of titanium alloy thin-walled part due to CNC machining is one of the most striking process problems that exist in the manufacturing process of aerospace parts [4–8], which greatly impacts the production quality and efficiency and also leads to great economic losses. Previous researches have shown that when metal crystal is under force, the dislocation (line defect) inside of the metal crystal massively proliferates and causes a lot of crystallographic plane (slip plane) movement, which results in plastic deformation of material [9, 10]. Considering the fact that the machining distortion of titanium alloy thin-walled part is a kind of significant plastic deformation mechanical behavior, the machining distortion is closely related to the geometry form and movement of dislocation. Cutting of titanium alloy is a process with exceeding nonlinear and heat-stress coupled [11]. Within the material, some atoms deviate from their ideal locations under the influence of heat and stress, resulting in the crystal defects, and as a consequence, the various material properties are inevitably influenced. Further researches show that the perfect dislocations decompose under the action of thermal stress and extend a piece of stacking fault (planar defect) between two partial dislocations [12]. This
Serendipity: Spacetime Invariance and Scale Effect
Chao Y. Yang
Physics , 2000,
Abstract: A logic of reciprocity between inertial frames in relative uniform motion is investigated. Relativity allows any reference frame to apply Lorentz Transformation while reciprocity would require the relative frame to use Inverse Transformation for the same event, and vice versa. After such transformations, an inseparability between relativistic measurements and the covariant scale is examined. Scale conversion has been found to be necessary to preserve spacetime invariance in Special Relativity. A new derivation of the Lorentz Factor has been found based on the scale effect. The physical meaning of the Factor is that it serves as a scale conversion ratio between relative reference frames. Reciprocity in relativity and causality of covariance in relative motion are thereby conserved. These logical conclusions harmonize intrinsic natural invariances vis-a-vis apparent observational covariances.
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