Cooperation between China and ASEAN in Combating Wildlife Trade under the Framework of Regional Legal System

Jiang Angyu(Angyu Jiang),Zong Wei(Wei Zong),Shi Qianfan(Qianfan Shi) 아시아사회과학학회 2022 Jornal of Asia Social Science Vol.9 No.1

Because of its greater biodiversity, ASEAN has long been a source and transit hub for transnational wildlife trafficking. Although several international and domestic wildlife enforcement mechanisms have been established, the scope and effectiveness of international legal cooperation and policy coordination between China and ASEAN remain limited. Governments have been hampered in their efforts to combat wildlife trafficking by the difficulties of investigation and prosecution in overseas jurisdictions and the maintenance of illicit supply chains by organized crime groups. This paper reviews the main trends of legal and illegal wildlife trade between China and ASEAN, explores the existing legal and policy frameworks of ASEAN countries and China, and discusses the effectiveness of cooperation between China and ASEAN countries by referring to the United Nations Convention against Transnational Organized Crime (UNTOC). Finally, put forward the legal cooperation between China and ASEAN countries in combating transnational illegal wildlife trafficking.

A Study on the Diffusion of Mobile Payment Usage in China : Focusing on the Use Diffusion Model

Wei Wei Jiang,왕다운,최혜경 사단법인 미래융합기술연구학회 2021 아시아태평양융합연구교류논문지 Vol.7 No.9

Mobile payments have become a major payment method in China in a short period of time due to its convenience. This has gradually made the lives of Chinese consumers more mobile and improved their efficiency. In this regard, this study analyzed the current status of mobile payment usage in China based on the use diffusion model targeting 440 Chinese consumers. First, exploratory and confirmatory factor analysis was conducted to find out the influence and determinants of the spread of mobile payment use. As a result, it was classified into environmental creation, technology dependence, and technology anxiety. After that, the structural model was analyzed to verify the path hypothesis. As a result, environment creation and technical anxiety influenced the characteristics of mobile payment usage. And it was found that technology dependence, technology anxiety, and diversity among the characteristics of use had a significant effect on the diffusion outcome. In particular, technology anxiety has been shown to be an important factor that not only increases the spread and satisfaction of consumers, but also increases the intention to accept new technologies that will be introduced in the future. Therefore, research on consumer's technology anxiety is needed in the future, and this is expected to contribute to devising measures to increase consumer acceptance of technology.

Protocols for Privacy-Preserving DBSCAN Clustering

XU Wei-jiang,HUANG Liu-sheng,LUO Yong-long,YAO Yi-fei,JING Wei-wei 보안공학연구지원센터 2007 International Journal of Security and Its Applicat Vol.1 No.1

Cooperative computation is one of the most important fields in computer science. In recent years, the development of networking increases the desirability of cooperative computation. But privacy concerns often prevent different parties from sharing their data. Secure multiparty computation techniques can dispel parties’ doubts about revealing privacy information in this situation. On the other hand, Data mining has been a popular research area for more than a decade. However, in many applications, the data are originally collected at different sites owned by different users. This paper considers the problem of privacy preserving DBSCAN clustering over vertically partitioned data based on some results of SMC. An efficient secure intersection protocol is first proposed. The security and complexity of the protocols are also analyzed. The results show that the protocols preserve the privacy of the data and the time complexity as well as the communication complexity is acceptable.

Optimization of acridine orange loading on 1:1 layered clay minerals for fluorescence enhancement

Wei-Teh Jiang,Yolin Tsai,Xisen Wang,Zhaohui Li 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.90 No.-

As a cationic fluorescence dye acridine orange (AO) is commonly used in biology and biochemistry for DNA analyses. In this study the light absorption and fluorescence of AO after being sorbed on kaolinite (Kao) and halloysite (Hal) were investigated. In dilute systems with initial AO concentrations of 1 × 106 to 1 ×104 M (0.3–25mmol/g loadings on Kao), both light absorption and fluorescence emission increased as the initial AO concentrations, thus, the amounts of AO sorbed increased. In contrast, the light absorption and fluorescence emission reached maxima at 1 × 105 M (3mmol/g) for Hal. In concentrated systems with initial AO concentrations of 5 × 104 –5 ×103 M (22–57 and 50–126mmol/g AO sorption on Kao and Hal), significant fluorescence quenching was observed and the fluorescence intensity decreased as the initial AO concentrations, thus, the amounts of AO sorbed increased. The results suggested that to achieve maximal fluorescence emission, monomeric AO configuration on the solid surface is a necessity. The AO sorption was mostly attributed to cation exchange between protonated AO and exchangeable cations on Kao and Hal surfaces. As such, both cation exchange capacity and specific surface area of the minerals control the maximal fluorescence emission.

Up-regulation of NICE-3 as a Novel EDC Gene Could Contribute to Human Hepatocellular Carcinoma

Wei, Yuan-Jiang,Hu, Qin-Qin,Gu, Cheng-Yu,Wang, Yu-Ping,Han, Ze-Guang,Cai, Bing Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.9

The epidermal differentiation complex (EDC) contains a large number of gene products which are crucial for the maturation of the human epidermis and can contribute to skin diseases, even carcinogenesis. It is generally accepted that activation of oncogenes and/or inactivation of tumor suppressor genes play pivotal roles in the process of carcinogenesis. Here, NICE-3, a novel EDC gene, was found to be up-regulated in human hepatocellular carcinoma (HCC) by quantitative real-time RT-PCR. Furthermore, overexpression of exogenous NICE-3 by recombinant plasmids could significantly promote cell proliferation, colony formation and soft agar colony formation in Focus and WRL-68 HCC cell lines. Reversely, NICE-3 silencing by RNA interference could markedly inhibit these malignant phenotypes in YY-8103 and MHCC-97H cells. Moreover, cell cycle analysis of MHCC-97H transfected with siRNA by flow cytometry showed that NICE-3 knockdown may inhibit cell growth via arrest in G0/G1 phase and hindering entry of cells into S phase. All data of our findings indicate that NICE-3 may contribute to human hepatocellular carcinoma by promoting cell proliferation.

A Dynamic Keyed Block Encryption Algorithm

Jiang, Wei,Kim, Sung-Je,Park, Kyoo-Seok Korea Multimedia Society 2008 멀티미디어학회논문지 Vol.11 No.6

In this paper, we propose a dynamic keyed block encryption algorithm. Most existing encryption algorithms are designed such that the key is not changed. Therefore, they have a disadvantage that plaintext could be easily exposed by differential and linear cryptanalysis. In the proposed algorithm, several key generators are designed, and a key generator is attached to the encryption procedure. After performing the encryption procedure, ciphertext and the initial key generating values are transferred to the receiver's key generator for decryption. Through simulation, the proposed algorithm is verified to satisfy the requirements of real-time processing and proved to have a high strength. It can be applied to practical use.

Synthesis and Characterization of Doxorubicin Loaded pH-Sensitive Magnetic Core–Shell Nanocomposites for Targeted Drug Delivery Applications

Wei Jiang,Juan Wu,Yewen Shen,Renbing Tian,Shuai Zhou 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2016 NANO Vol.11 No.11

In order to improve the effects of medical therapy for cancer, we prepared magnetic nanocomposites (Fe3O4@SiO2–NH–NH2) as doxorubicin (DOX) carriers via two different schemes. Scheme (I): the carriers were synthesized from magnetic silica nanoparticles (Fe3O4@SiO2) via layer by layer modification, scheme (II): the carriers were obtained from amino-modified magnetic silica nanoparticles (Fe3O4@SiO2–NH2) synthesized by one-step, and followed by surface modification. In order to load DOX effectively, the surface of the carriers were further modified to make the surface with a large number of hydrazine bonds which can form a pH-sensitive bond (hydrazone bond) with DOX. The two kinds of carriers both exhibited a size around 80 nm, high stability and superparamagnetic behavior. However, DOX-loaded carriers (Fe3O4@SiO2–DOX (2)) performed relatively poorer performance in terms of drug loading and releasing (the loading efficiency of DOX decreased from 67.33% to 42.15%, while the releasing efficiency of DOX decreased from 66.16% to 62.23% within 72 h at pH 4.0). Water-soluble tetrazolium salts (WST-1) assays in cancer cells (Hela) demonstrated that the Fe3O4@SiO2–DOX presented high anti-tumor activity, while the carriers were nearly nontoxic. Thus, the results suggested that the magnetic nanocomposites synthesized by the two different methods both can be employed to deliver DOX, while the carriers obtained via the first method may perform better and would be applied in the field of cancer therapy in the future.

Study on host plants for reproduction of Chilo suppressalis

Wei-Hua Jiang,Hai-Dong Li,Xiong-Feng Cheng,Jian-Ren Ye,Yong-Bin Feng,Zhao-Jun Han 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.3

The rice stem borer, Chilo suppressalis, is generally considered to be a polyphagous pest. The current study challenges this view by investigating its oviposition preference, larval survival and development on different host plants under both laboratory and field conditions. Rice and water-oat populations of the borer inhabiting on corresponding plants respectively have partial reproductive isolation based on previous studies. In a laboratory multiple-choice test, C. suppressalis adults from rice population laid most of eggs on water-oat (46.5% of total eggs) and rice (43.8%), with very fewlaid onwheat (3.6%), sugarcane (4.0%) andmaize (2.0%). Field surveys supported the laboratory study and found no egg on the plants other than rice and water-oat. Neonate inoculation experiments performed in field and laboratory showed that larval survival rate was much higher on rice (49.1%–51.2%) and wheat (36.5%–44.1%) than that on water-oat (10.7%–10.8%), maize (1.2%–7.2%), sugarcane (0–1.5%) and weeds (2.4%). These results were discussed with the data reported from water-oat population and it was concluded that C. suppressalis is not a typical polyphagous pest. Rice population mainly reproduces on rice and use water-oat only as minor host, and water-oat population breeds better on water-oat than on rice as reported. Neither population could thrive on the other recorded host plants, which are used for the supplementary nutrition sources of larvae. These findings provide useful information for the development of control strategies to prevent C. suppressalis laying eggs on rice seedlings in early spring, hence effectively reducing population density of this pest in rice fields.

A New ent-Kaurane type Diterpenoid Glycoside from Inula japonica Thunb

Jiang Jiang Qin,Jia Xian Zhu,Wei Dong Zhang1,2,Yan Zhu,Jian Jun Fu,Xiao Hua Liu,Hui Zi Jin 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.10

A new ent-kaurane type diterpenoid glycoside, 17-O-β-D-glucopyranosyl-16α-ent-kauran-19-oic acid (1), together with 17-hydroxy-16α-ent-kauran-19-oic acid (2), 16α,17-dihydroxyl-ent-kauran-19-oic acid (3), and 16α-hydroxy-17-acetoxy-ent- kauran-19-oic acid (4) were isolated from the aerial parts of Inula japonica Thunb. The structure of 1 was determined mainly by use of 1D and 2D NMR spectroscopic techniques including HSQC, 1H-1H COSY, HMBC, and NOESY. In addition, 4 exhibited significant inhibitory activity on NO production in LPS-stimulated RAW264.7 cells with IC50 value of 14.3 μg/mL.

Fucosylated Chondroitin Sulfate from Sea Cucumber Inhibited Islets of Langerhans Apoptosis via Inactivation of the Mitochondrial Pathway in Insulin Resistant Mice

Wei Jiang,Shijie Li,Shiwei Hu,Jignfeng Wang,Wendong Song,Lili Ji,Yaning Wang 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.3

The effects of fucosylated chondroitin sulphate from sea cucumber (CHS) on inhibition of pancreatic islet apoptosis in high-fat high-sucrose diet (HFSD)-induced insulin resistant mice were studied for 19 weeks. CHS treatment significantly (p<0.05) decreased fasting blood glucose, insulin, and tumor necrosis factor (TNF)-α levels, and increased the serum adiponectin level, improved insulin resistance, and repaired HFSD-injured islets of langerhans, compared with controls. CHS supplementation significantly (p<0.05) inhibited pancreas cell apoptosis via reduction of cytochrome c, caspase 9, and caspase 3 mRNA expressions, cytochrome c release into the cytoplasm, and caspase 9 and cleaved-caspase 3 protein expressions, compared with controls. These effects were associated with upregulation of Bcl-2 and Bcl-xL mRNA and protein expressions, and downregulation of Bax and t-Bid mRNA and protein expressions. Combination treatments with CHS and rosiglitazone synergistically protected pancreatic islets. CHS improves insulin resistance and protects islets of langerhans from apoptosis via inactivation of the intrinsic mitochondrial pathway.