applications of electron and ion beam microscopy in dental implant research

... activation of the Wnt signaling pathway and nuclear accumulation of b-catenin frequently occurs during gastrointestinal cancers, including colorectal cancer initiation and progression, and leads ... ABCG2 in cancer cells are indicated Moreover, the enhanced expression of p21WAP1 and p27KIP1 cyclin-dependent kinase inhibitors and inhibition of mitotic effects induced by curcumin resulting in ... emphasis on brain, prostate, pancreatic and colorectal cancers were included in the review Potential applications of curcumin in cancer prevention and therapy Curcumin exhibits in vitro and in vivo...

Ngày tải lên: 13/08/2014, 14:20

... application of pair and groupwork in teaching and learning speaking skills (ii) to examine the current situations of the application of pair and group work in teaching and learning speaking skills at ... knowing To define speaking Florez states that speaking is “an interactive process of constructing meaning that involves producing and receiving and processing information It is often spontaneous, ... in the next chapter 31 Chapter III : FINDINGS AND SUGGESTIONS FOR BETTER USE OF PAIRWORK AND GROUPWORK IN TEACHING SPEAKING SKILL III.1 Findings With the information from the questionaire and...

Ngày tải lên: 28/03/2015, 09:41

... Báo cáo seminar: Applications SOA and WEB services in Grid Computing  Data naming and access  Replication  Metadata and provenance Resource and Service Management  Provisioning and resource ... dịch vụ bản:  Name resolution and discovery  Service domains  Security  Policy  Messaging, queuing, and logging  Events  Metering and accounting Data and Information Services Trầ n Anh Điề ... 21 Báo cáo seminar: Applications SOA and WEB services in Grid Computing Domain-Specific Services Standardization Program Execution Data Services Core Services Open Grid Services Infrastructure...

Ngày tải lên: 13/04/2015, 08:56

... (UV irradiation, freeze drying and heating) and chemical means such as ionic crosslinking in presence of divalent ions or utilization of chemical crosslinkers such as glutaraldehyde and carbodiimide ... developed in this thesis may be of Chapter 18 importance in combining tissue engineering and drug delivery nicely, with potential in clinical applications 1.3 Drug delivery dosage forms In addition ... scaffolds containing bone morphogenetic protein (BMP-2) and/ or nanoparticles of hydroxyapatite (nHAp) using electrospinning, and showed its ability in inducing in vitro bone formation from human...

Ngày tải lên: 14/09/2015, 08:41

... post-processing conditions like scaffold handling and incubation) that may result in partial removal of amino acid groups and conformation change in the protein Figure 3.8 Native PAGE results of BMP-2 released ... solution was added directly into the aqueous fabrication solution for electrospinning For F4, the BMP-2 solution was not added directly into the aqueous fabrication solution Instead, the protein ... each and mixed well to produce a homogeneous BMP-2 solution In each of the experiments for case 1- case 3, 50μL BMP-2 solution containing 5μg of the protein was dissolved in deionised water and...

Ngày tải lên: 14/09/2015, 08:41

... in order to determine the peak areas and retention time for DCM A calibration curve was obtained for peak area of different concentrations of DCM in DMF To obtain the residual amount of DCM in ... were embedded into paraffin wax and 5-μm sections were prepared Sections were routinely stained with hematoxylin-eosin Under the magnification of 400X, all lacunae within the range of bone fractures ... scaffolds obtained from the electrospinning method, 15mg of each sample of F1-F4 were weighed and dissolved in mL of DMF solution to extract DCM after freeze drying for days inside a Martin Christ...

Ngày tải lên: 14/09/2015, 08:41

... gel (Figure 5.6) In other words, the released DNA has survived both the electrospinning process and postprocessing conditions (handling of scaffold, incubations, and lyophilization) From the electrophoretic ... evaporation of the volatile organic solvents 5.3.2 In vitro release test and determination of encapsulation efficiency (EE) In vitro release test of plasmid DNA Approximately 25mg of microfiber ... therefore in the process of electrospinning, DNA/chitosan nanoparticles in the water phase go to the top layer of PLGA/DCM solution and phase separation occurs especially in the later phase of electrospinning...

Ngày tải lên: 14/09/2015, 08:41

... composition of the emulsion of the groups (A, B and C) and samples (A1-A3, B1-B3 and C1-C3) The detailed fabrication procedures have been illustrated in Chapter (Section 5.2.4) Table 6.1 Compositions ... implantation of scaffolds together with control Chapter 116 Figure 6.2 Radiographs of nude mice tibias after and weeks of implantation of scaffolds Bone fragment without implantation of any scaffold ... B3, and C1 Furthermore, this also confirms that during the progress of bone healing, tissue reabsorbing/remodeling, and the in growth of blood vessel are interactively together rather than being...

Ngày tải lên: 14/09/2015, 08:41

... maintained after going through the processes of spray drying, supercritical CO2 foaming and post-processing conditions (handling of scaffold, incubations, and lyophilization) As shown in Figure 7.7b, ... cases of scaffolds F1 and F2 To evaluate the effects of the fabrication process (including spray drying, supercritical CO2 foaming, and handling of samples) on the molecular integrity of plasmid ... the course of the spray drying process, high-pressure supercritical CO2 foaming process, and post-processing conditions (handling of scaffold, incubations, and lyophilization) Comparing the results...

Ngày tải lên: 14/09/2015, 08:41

... encapsulated in foams was in a supercoiled form This kind of DNA conformation may trigger the penetration of DNA molecules into the deeper layer of K20 coating on foam F2 due to the long chain of K20, instead ... Three-dimensional foams have been widely investigated regarding their applications in tissue engineering and it has been proved that polymeric foams are promising candidates for tissue engineering (Chun ... whole testing period of days, but an obvious reduction in cell viability was detected in the control group and F0 on day and day This finding is similar to the observation in other research group...

Ngày tải lên: 14/09/2015, 08:41

... PLGA/chitosan and PLGA/Lysine composites is in form of naked DNA and its transfection efficiency is extremely low, which would hinder their applications in biomedical engineering In future investigations, ... PLGA/chitosan and PLGA/Lysine foams led to negligible cytotoxicity and sustained expression of DNA, which is favorable for DNA delivery and tissue engineering applications In conclusion, this research ... shown potential applications of electrospinning and supercritical CO2 foaming techniques in the fabrication of three dimensional scaffolds for controlled release and bone regeneration These two...

Ngày tải lên: 14/09/2015, 08:41

... N = −P in the emission term and N ” − N = P in the absorption term (P = 1, 2, 3, ) [14] Here N = in Y1± and N = in Y2± Inserting Eq (16) 178 HUYNH VINH PHUC, LE DINH, TRAN CONG PHONG into Eq ... (4) (5) where p⃗ and e are the momentum operator and charge of a conduction electron, respectively, N = 0, 1, 2, and n = 1, 2, 3, denote the Landau-level index and subband indices, respectively, ... is introduced in Section IV II ABSORPTION POWER IN RECTANGULAR QUANTUM WIRES We consider a RQW semiconductor model, where the conduction electrons are free along the z-direction and confined in...

Ngày tải lên: 30/10/2015, 20:49

... of mutagen in terms of survival and growth reduction, all populations at dose of 21 kR were advanced for further evaluation and screening The surviving M1 plants were harvested individually and ... branching in ĐT12; B no branching in ĐVN6 581 Mutagenic induction of agronomical and yield contributing traits in soybean (Glycine max (L.) Merrill) with gamma irradiation A B Fig Sterility mutation ... laborious and time consuming The present investigation attempted to use gamma irradiation to induce changes in agronomic and yield contributing traits of existing cultivars, ĐN6, ĐT12 and ĐT20...

Ngày tải lên: 29/08/2013, 08:14

... complications leading to a termination of these trials were local infections and insufficiencies of anastomosis in 12 of the animals and extensive stenoses accompanied by respiratory insufficiency in ... modifications of this technique and bearing in mind the contraindications, more than 90% of the children can nowadays be extubated without problems In spite of the progress, in children undergoing single-step ... adhesion, proliferation, and differentiation of the primary cell cultures of the pharynx were not in uenced by the multifunctional copolymer 13.3.3 In uence of Implant Topography The integration of...

Ngày tải lên: 25/10/2013, 08:20

... aspect of any future international use of this route We will examine Russian regulations governing navigation and vesselsource pollution, and the consistency of domestic provisions with current international ... irreparably, as well as in ict damage on the interest and well-being of the peoples of the Extreme North The NSR Regulations contain provisions governing mandatory notification and authorisation to foreign ... climatic conditions and the presence of ice covering such areas for most of the year’ Secondly, these must be ‘non-discriminatory’ and aim at preventing, reducing and controlling marine pollution from...

Ngày tải lên: 01/11/2013, 09:20

... Van Lam in An Investigation into the English Words and Idioms Denoting Happiness (2002) presents some interesting findings on teaching and learning vocabulary in terms of the meaning of new items ... background and theoretical framework for analyzing and contrasting words and idioms expressing “unhappiness” in English and in Vietnamese in terms of syntactic and semantic features Many definitions and ... expressing unhappiness in English and Vietnamese - Offer some suggestions for teaching and learning English and Vietnamese in general and for the translation work of words and idioms in these languages...

Ngày tải lên: 26/11/2013, 13:29

... engaged in all forms of moving supplies and munitions would become acquainted with and adept at the use of this strength-enhancing, labor-saving tool Reduction of staff and elimination of many ... Contribution of This Report, SUMMARY OF THE TECHNOLOGY Definitions, Research Issues, CRITERIA FOR SELECTION OF APPLICATIONS Reasons for Applying Robotics and Artificial Intelligence, 10 Combining ... of the committee's recommendations for selecting and implementing of applications The committee used its review of technology and information on Army doctrine, prior reports on Army applications...

Ngày tải lên: 13/12/2013, 01:15

... “User’s perceptions and uses of financial reports of small and medium companies (SMCs) in transitional economies” thật cần thiết Đọc nghiên cứu không dừng lại việc tiếp nhận thông tin nghiên cứu ... tin? Và họ cung cấp thông tin nào? - Cung cấp thông tin BCTC: bắt buộc Chính phủ nhu cầu vay vốn ngân hàng - Chất lượng cung cấp thông tin: thông tin tính hữu dụng cao, thể khía cạnh: o Độ tin ... chính; Tiếp cận thông tin; Tần số sử dụng; Mức độ hiểu biết thông tin; Nhận thức chất lượng thông tin (độ tin cậy, tính phù hợp, kịp thời, so sánh); o Các nguồn thông tin khác; o Cân nhắc chi...

Ngày tải lên: 25/12/2013, 15:10

... (Women and Human Development Ministry) Ministerio de Industria, Turismo, Integracion y Negociaciones Comerciales Internacionales (Ministry of Industry, Tourism, Integration and International Negotiations) ... coordinated use of a range of CORFO programs It combines training activities, innovation, infrastructure, technical assistance, and business and finance networking In 2001, the PTI financed nine ... enterprises in the financing, design and implementation of international promotion campaigns, market research and feasibility studies, and participation in international fairs Science and Technology...

Ngày tải lên: 14/02/2014, 21:20