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Search Results: 1 - 10 of 791 matches for " Bingbing Cha "
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Serum osteocalcin level and its association with carotid atherosclerosis in patients with type 2 diabetes
Li Sheng, Wenjie Cao, Bingbing Cha, Zhaoping Chen, Fang Wang, Jun Liu
Cardiovascular Diabetology , 2013, DOI: 10.1186/1475-2840-12-22
Abstract: We performed a cross-sectional community-based study in metropolitan area. Serum total osteocalcin was measured by radioimmunoassay in 382 men and 435 postmenopausal women. The carotid artery intima-media thickness (IMT) and carotid plaques (PLQ) were measured by B-mode ultrasound.The crude mean of serum osteocalcin concentrations were 4.52±2.43 ng/ml for men and 5.75±2.92 ng/ml for postmenopausal women (P <0.001), respectively. Osteocalcin levels were associated inversely with age, fasting serum insulin, HOMA-IR, ALT, triglycerides, total cholesterol, LDL- cholesterol, CRP (all P<0.001) and positively with adiponectin and HOMA-B (all P<0.05). After multiple adjustment, the odds ratios (ORs) were substantially higher risk for carotid plaques (OR 1.77 for 1 SD decrease in osteocalcin, 95% CI 1.23-2.76, p=0.005). These associations remained significant after further adjustment for potential confounder.Serum osteocalcin levels is an independent risk factor for carotid atherosclerosis in patients with type 2 diabetes.The increased cardiovascular risk in type 2 diabetes mellitus is reflected by atherosclerosis, which is an established predictor of coronary heart disease and stroke in older subjects [1-4]. This diabetes-associated increase in atherosclerosis is associated with conventional cardiovascular risk factors, such as central obesity, high blood pressure, and dyslipidaemia, as well as with insulin resistance [5,6].Osteocalcin is a 49-amino acid bone matrix noncollagen protein expressed mainly by osteoblasts [7]. It is a specific biochemical marker of bone turnover and bone formation involved in bone mineralization and calcium homeostasis [8]. Studies have verified that adipose tissue could regulate bone remodeling through the adipokine leptin by acting on osteoblasts [9,10]. In turn, bone modulates energy metabolism in a feedback loop. The novel function for the skeleton unraveled its importance as an endocrine organ. A bone-derived protein, osteocalcin, has raise
A Solution to Implement Dynamic Authentication  [PDF]
Bingbing Xia, Youping Dong
Open Journal of Applied Sciences (OJAppS) , 2012, DOI: 10.4236/ojapps.2012.23025
Abstract: In view of the security risks of using static passwords to authenticate users, this paper gives a solution to implement two-factor authentication by using RSA token. A set of corresponding realization processes is proposed as well. Using dynamic password given by RSA can further verify user identity to improve the reliability of authentication.
A Mapping Method of Using the Compound Use Cases to Generate User Interface  [PDF]
Bingbing Xia, Yue Zhang
Open Journal of Applied Sciences (OJAppS) , 2012, DOI: 10.4236/ojapps.2012.23026
Abstract: To support the requirement analysis of the user interfaces and the auto generation of the final user interfaces, we should improve the traditional modeling method which centered on the system and the implementation, and turn to use the modeling method which centered on the usage and the user. The compound use cases describe the system function from the user point of view. Based on the compound use cases, we can generate the final user interfaces.
Problems and Countermeasures in the Ecological Protection of Shenyang City
Bingbing Cui
International Journal of Biology , 2010, DOI: 10.5539/ijb.v2n2p246
Abstract: The development and advance of city is the sign of human civilization, and the crystal of the mutual development of economy, politics, culture, and ecological environment for one age. In the ecological protection, Shenyang city has not protected and destroyed original public services from the view of cultural ecology. The cause is that Shenyang city lacks in the consciousness to maintain the ecology, which seriously influences the development of Shenyang city and threatens human healthy, and has been an important factor to restrain the sustainable development of the city (Li, 2008). Aiming at this problem, many countermeasures such as establishing the volunteer organization of ecological preservation and keeping feasible density are proposed in this article.
Research Progress on the Wing and Veins of Diptera Phoridae
Bingbing Cui
International Journal of Biology , 2010, DOI: 10.5539/ijb.v2n2p210
Abstract: Wing is one of the most important organs of insects, and due to wings, insects adapt to different environmental conditions in the world. Consequently, wings played a critical role in the evolution of insects. Different types of wings reflected different evolutionary patterns and rate.
Yttria Promoted Nickel Nanowire Catalyst for the Partial Oxidation of Methane to Synthesis Gas  [PDF]
Xuebin Hong, Bingbing Li, Cong Zhang
Advances in Materials Physics and Chemistry (AMPC) , 2012, DOI: 10.4236/ampc.2012.24B054
Abstract: A yttria promoted nickel nanowire catalyst was prepared by a hard templating method, and characterized by transmission electron microscopy (TEM) and N2 physical adsorption. The catalytic properties of the yttria promoted nanowire catalyst in the partial oxidation of methane to syngas were compared with a metallic Ni catalyst which was prepared with nickel sponge. The characterization results showed that the yttria promoted nickel nanowire catalyst had high specific surface area and there was more NiO phase in the nickel nanowire catalyst than in the metallic Ni catalyst. The reaction results showed that the yttria promoted nickel nanowire catalyst had high CH4 conversion and selectivities to H2 and CO.
Integration of Building Maintenance Data in Application of Building Information Modeling (BIM)  [PDF]
Dooyong Ahn, Heesung Cha
Journal of Building Construction and Planning Research (JBCPR) , 2014, DOI: 10.4236/jbcpr.2014.22015
Abstract: A typical building project has a long life in the maintenance stage. Also, the cost at this stage is enormously huge compared to planning, design and construction phases. In the earlier stage, which is planning or design phase, however, many project participants put little emphasis on the maintenance information. As a result, important maintenance data is missing and erroneously feedback to the 3D/BIM model. This research provides a generic process model for maintenance information management for building facilities. The authors have identified that there exist most-frequently used information areas: checking information, material information, equipment information, supplier information, and maintenance history information. Each information area should be embedded in the BIM model in order to effectively feedback to the operation and maintenance stage in the project. Thus, the study has proposed a novel data format structure which can effectively link the 3D/BIM object with the maintenance data. The demonstration project shows how the data format structure is used. The contribution of this study is to provide guidance to a project practitioner by step-by-step approach in dealing with the significant maintenance information in the earlier stage of the construction project.
Establishment of New Solution for Complex Systems in Multidisciplinary Sci-ence Based on Feedback System Analysis Method and Proven by Simulator  [PDF]
Deok-Soo Cha
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.613198
Abstract: This paper establishes a very important scientific solution to science of complexity for physicists, and presents a multidisciplinary involved physics and engineering. The innovative solution for complex systems presented here is verified on the basis of principles in engineering such as feed-back-system analysis using the classical control theory. This paper proposes that a complex system is a closed-loop system with a negative feedback element and is a solvable problem. A complex system can be analyzed using the system analysis theory in control engineering, and its behavior can be realized using a specially designed simulator.
Tunable drug loading and release from polypeptide multilayer nanofilms
Bingbing Jiang, Bingyun Li
International Journal of Nanomedicine , 2009, DOI: http://dx.doi.org/10.2147/IJN.S4970
Abstract: nable drug loading and release from polypeptide multilayer nanofilms Original Research (7098) Total Article Views Authors: Bingbing Jiang, Bingyun Li Published Date March 2009 Volume 2009:4 Pages 37 - 53 DOI: http://dx.doi.org/10.2147/IJN.S4970 Bingbing Jiang1, Bingyun Li1,2,31Biomaterials, Bioengineering and Nanotechnology Laboratory, Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, WV, USA; 2WVNano Initiative, WV, USA; 3Department of Chemical Engineering, College of Engineering and Mineral Resources, West Virginia University, Morgantown, WV, USA Abstract: Polypeptide multilayer nanofilms were prepared using electrostatic layer-by-layer self-assembly nanotechnology. Small charged drug molecules (eg, cefazolin, gentamicin, and methylene blue) were loaded in polypeptide multilayer nanofilms. Their loading and release were found to be pH-dependent and could also be controlled by changing the number of film layers and drug incubation time, and applying heat-treatment after film formation. Antibiotic-loaded polypeptide multilayer nanofilms showed controllable antibacterial properties against Staphylococcus aureus. The developed biodegradable polypeptide multilayer nanofilms are capable of loading both positively- and negatively-charged drug molecules and promise to serve as drug delivery systems on biomedical devices for preventing biomedical device-associated infection, which is a significant clinical complication for both civilian and military patients.
Research Significance of Wing and Vein among Insecta
Bingbing Cui,Guangchun Liu
International Journal of Biology , 2010, DOI: 10.5539/ijb.v3n1p180
Abstract: Insects are the only flying animals among invertebrates, but also the earliest animals with wings in animal kingdom. The presence of wings not only expands the insects’ activity and distribution scope, but also enhances their speed, which brings superiority and competence in variety of aspects such as foraging, calling, finding places for spawning, winters and summers, avoiding predators and so on. Wing is an important condition for insecta to become the most prosperous biological community. Among various insects, wings experienced a wide range of variation, so the characteristics of wings have become an important basis for the study of insect classification and evolution.
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