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Sanchez-Ruiz, Arturo,Umapathy, Karthikeyan,Hayes, Pat Korean Institute of Information Scientists and Eng 2009 Journal of Computing Science and Engineering Vol.3 No.2
In this paper, we describe our vision of a "Just-in-time" initiative to solve the Data Interoperability Problem (a.k.a. INTEROP.) We provide an architectural overview of our initiative which draws upon existing technologies to develop an immersive and collaborative approach which aims at empowering data stakeholders (e.g., data producers and data consumers) with integrated tools to interact and collaborate with each other while directly manipulating visual representations of their data in an immersive environment (e.g., implemented via Second Life.) The semantics of these visual representations and the operations associated with the data are supported by ontologies defined using the Common Logic Framework (CL). Data operations gestured by the stakeholders, through their avatars, are translated to a variety of generated resources such as multi-language source code, visualizations, web pages, and web services. The generality of the approach is supported by a plug-in architecture which allows expert users to customize tasks such as data admission, data manipulation in the immersive world, and automatic generation of resources. This approach is designed with a mindset aimed at enabling stakeholders from diverse domains to exchange data and generate new knowledge.
Arturo Sanchez-Ruiz,Karthikeyan Umapathy,Pat Hayes 한국정보과학회 2009 Journal of Computing Science and Engineering Vol.3 No.2
In this paper, we describe our vision of a “just-in-time” initiative to solve the Data Interoperability Problem (a.k.a. INTEROP.) We provide an architectural overview of our initiative which draws upon existing technologies to develop an immersive and collaborative approach which aims at empowering data stakeholders (e.g., data producers and data consumers) with integrated tools to interact and collaborate with each other while directly manipulating visual representations of their data in an immersive environment (e.g., implemented via Second Life.) The semantics of these visual representations and the operations associated with the data are supported by ontologies defined using the Common Logic Framework (CL). Data operations gestured by the stakeholders, through their avatars, are translated to a variety of generated resources such as multi-language source code, visualizations, web pages, and web services. The generality of the approach is supported by a plug-in architecture which allows expert users to customize tasks such as data admission, data manipulation in the immersive world, and automatic generation of resources. This approach is designed with a mindset aimed at enabling stakeholders from diverse domains to exchange data and generate new knowledge.
Systematic Method of Designing and Constructing Velocity Fields for Motion Control
Francisco Jose Ruiz-Sanchez 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.2
Velocity fields for motion control are a kinematic description of the desired trajectories in the Cartesian space whose applications in industrial processes of contouring tasks are promising; however, the lack of a general designing method and the complexity of the controllers designed without concern for the construction of the fields have confined their use to the academic domain. In this paper, the author introduces a systematic method for designing and constructing velocity fields for control that provides a suitable reference in velocity to simplify the structure of the close loop controllers. The method is a three steps procedure where the motion objective in the vector field is described as a main streamline surrounded by an attractive flow to achieve this objective. The main streamline, expressed as a parametric curve, determines the main directional components of the field as a radialattraction to the curve and a tangential-guide on the curve; directions which are linearly combined to calculate the velocity vectors into a soft and continuous transition of uniform speed to attract and guide the motion as the position gets closer to the curve. It is showed that the method provides a convergent velocity field, either as a static kinematic description of the motion or as a dynamic reference in velocity for a moving particle, and it is tested designing a circular trajectory field, commonly used in control design, and two generic examples of 2D and 3D curves on the Cartesian space.
A cost-effective method to prepare size-controlled nanoscale zero-valent iron for nitrate reduction
Claudio Adrian Ruiz-Torres,Rene Fernando Araujo-Martinez,Gabriel Alejandro Martinez-Cas,J. Elpidio Morales-Sanchez,Tae-Jin Lee,Hyun-Sang Shin,Yuhoon Hwang,Abel Hurtado-Macias,Facundo Ruiz 대한환경공학회 2019 Environmental Engineering Research Vol.24 No.3
Nanoscale zero-valent iron (nZVI) has proved to be an effective tool in applied environmental nanotechnology, where the decreased particle diameter provides a drastic change in the properties and efficiency of nanomaterials used in water purification. However, the agglomeration and colloidal instability represent a problematic and a remarkable reduction in nZVI reactivity. In view of that, this study reports a simple and cost-effective new strategy for ultra-small (< 7.5%) distributed functionalized nZVI-EG (1-9 ㎚), with high colloidal stability and reduction capacity. These were obtained without inert conditions, using a simple, economical synthesis methodology employing two stabilization mechanisms based on the use of non-aqueous solvent (methanol) and ethylene glycol (EG) as a stabilizer. The information from UV-Vis absorption spectroscopy and Fourier transform infrared spectroscopy suggests iron ion coordination by interaction with methanol molecules. Subsequently, after nZVI formation, particle-surface modification occurs by the addition of the EG. Size distribution analysis shows an average diameter of 4.23 ㎚ and the predominance (> 90%) of particles with sizes < 6.10 ㎚. Evaluation of the stability of functionalized nZVI by sedimentation test and a dynamic light-scattering technique, demonstrated very high colloidal stability. The ultra-small particles displayed a rapid and high nitrate removal capacity from water.
Gustavo Adrian Ruiz Sanchez 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.6
This paper proposes a computer vision-based banknote recognition system intended to assist the blind. This system is robust and fast in recognizing banknotes on videos recorded with a smartphone on real-life scenarios. To reduce the computation time and enable a robust recognition in cluttered environments, this study segments the banknote candidate area from the background utilizing a technique called Pixel-Based Adaptive Segmenter (PBAS). The Speeded-Up Robust Features (SURF) interest point detector is used, and SURF feature vectors are computed only when sufficient interest points are found. The proposed algorithm achieves a recognition accuracy of 98%, a 100% true recognition rate and a 0% false recognition rate. Although Korean banknotes are used as a working example, the proposed system can be applied to recognize other countries’ banknotes.
Alvarado-Ruiz, Liliana,Martinez-Silva, Maria Guadalupe,Torres-Reyes, Luis Alberto,Pina-Sanchez, Patricia,Ortiz-Lazareno, Pablo,Bravo-Cuellar, Alejandro,Aguilar-Lemarroy, Adriana,Jave-Suarez, Luis Feli Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.3
HOX transcription factors are evolutionarily conserved in many different species and are involved in important cellular processes such as morphogenesis, differentiation, and proliferation. They have also recently been implicated in carcinogenesis, but their precise role in cancer, especially in cervical cancer (CC), remains unclear. In this work, using microarray assays followed by the quantitative polymerase chain reaction (qPCR), we found that the expression of 25 HOX genes was downregulated in CC derived cell lines compared with non-tumorigenic keratinocytes. In particular, the expression of HOXA9 was observed as down-modulated in CC-derived cell lines. The expression of HOXA9 has not been previously reported in CC, or in normal keratinocytes of the cervix. We found that normal CC from women without cervical lesions express HOXA9; in contrast, CC cell lines and samples of biopsies from women with CC showed significantly diminished HOXA9 expression. Furthermore, we found that methylation at the first exon of HOXA9 could play an important role in modulating the expression of this gene. Exogenous restoration of HOXA9 expression in CC cell lines decreased cell proliferation and migration, and induced an epithelial-like phenotype. Interestingly, the silencing of human papilloma virus (HPV) E6 and E7 oncogenes induced expression of HOXA9. In conclusion, controlling HOXA9 expression appears to be a necessary step during CC development. Further studies are needed to delineate the role of HOXA9 during malignant progression and to afford more insights into the relationship between downmodulation of HOXA9 and viral HPV oncoprotein expression during cercical cancer development.
miR-153 Silencing Induces Apoptosis in the MDA-MB-231 Breast Cancer Cell Line
Anaya-Ruiz, Maricruz,Cebada, Jorge,Delgado-Lopez, Guadalupe,Sanchez-Vazquez, Maria Luisa,Perez-Santos, Jose Luis Martin Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.5
MicroRNAs (miRNAs) are small, non-coding RNAs (18-25 nucleotides) that post-transcriptionally modulate gene expression by negatively regulating the stability or translational efficiency of their target mRNAs. In this context, the present study aimed to evaluate the in vitro effects of miR-153 inhibition in the breast carcinoma cell line MDA-MB-231. Forty-eight hours after MDA-MB-231 cells were transfected with the miR-153 inhibitor, an MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay was utilized to determine the effects of miR-153 on cell viability. Flow cytometry analysis and assessment of caspase 3/7 activity were adopted to determine whether miR-153 affects the proliferation rates and apoptosis levels of MDA-MB-231 cells. Our results showed that silencing of miR-153 significantly inhibited growth when compared to controls at 48 hours, reducing proliferation by 37.6%, and inducing apoptosis. Further studies are necessary to corroborate our findings and examine the potential use of this microRNA in future diagnostic and therapeutic interventions.
Pinning Control of Complex Network Synchronization: A Recurrent Neural Network Approach
Edgar N. Sanchez,David I. Rodriguez-Castellanos,Guanrong Chen,Riemann Ruiz-Cruz 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.3
Using recurrent high order neural networks for identification, a new scheme for pinning control of complexnetworks with changing unknown coupling strengths is proposed for achieving synchronization. The robustbehavior of the control system is investigated via simulations.
Synthesis and characterization of functionalized zero-valent iron nanoparticle
( Claudio Adrian Ruiz Torres ),( Gabriel Alejandro Martinez Castanon ),( Jose Elpidio Morales Sanchez ),( Jesus Maria Guajardo Pacheco ),( Rene Fernando Araujo Martinez ),( Yuhoon Hwang ),( Facundo Ru 한국물환경학회 2017 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2017 No.-