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Sample records for da vinci system

  1. [da Vinci surgical system].

    PubMed

    Watanabe, Gou; Ishikawa, Norihiro

    2014-07-01

    The da Vinci surgical system was developed by Intuitive Surgical Inc. in the United States as an endoscopic surgical device to assist remote control surgeries. In 1998, the Da Vinci system was first used for cardiothoracic procedures. Currently a combination of robot-assisted internal thoracic artery harvest together with coronary artery bypass grafting (CABG) through a mini-incision (ThoraCAB) or totally endoscopic procedures including anastomoses under robotic assistance (TECAB) are being conducted for the treatment of coronary artery diseases. With the recent advances in catheter interventions, hybrid procedures combining catheter intervention with ThoraCAB or TECAB are anticipated in the future.On the other hand, with the decrease in number of coronary artery bypass surgeries, the share of valvular surgeries is expected to increase in the future. Among them, mitral valvuloplasty for mitral regurgitation is anticipated to be conducted mainly by low-invasive procedures, represented by minimally invasive cardiac surgery( MICS) and robot-assisted surgery. Apart from the intrinsic good surgical view, robotic-assisted systems offer additional advantages of the availability of an amplified view and the easy to observe the mitral valve in the physiological position. Thus, robotic surgical surgeries that make complicated procedures easier are expected to accomplish further developments in the future. Furthermore, while the number of surgeries for atrial septal defects has decreased dramatically following the widespread use of Amplatzer septal occluder, robotic surgery may become a good indication for cases in which the Amplatzer device is not indicated. In Japan, clinical trial of the da Vinci robotic system for heart surgeries has been completed. Statutory approval of the da Vinci system for mitral regurgitation and atrial septal defects is anticipated in the next few years. PMID:25138939

  2. [Lobectomy for lung cancer using the Da Vinci surgical system].

    PubMed

    Nakamura, Hiroshige

    2014-05-01

    Robot-assisted surgery using the da Vinci surgical system has attracted attention because of excellent operability without shaking by joint forceps under the clear vision of a three-dimensional high-definition camera in lung cancer surgery. Although this form of advanced medical care is not yet approved for insurance coverage, it is at the stage of clinical research and expected to be useful in hilar exposure, lymph node dissection, and suturing of the lung parenchyma or bronchus. Lung cancer surgery with the da Vinci system has the advantage of combining thoracotomy and minimally invasive surgery in video-assisted thoracic surgery. However, safety management, education, and significant cost are problems to be resolved. Several important issues such as sharing knowledge and technology of robotic surgery, education, training, development of new instruments, and acquisition of advanced medical insurance are discussed for the future development of robotic surgical systems. PMID:24946522

  3. Mammary artery harvesting using the Da Vinci Si robotic system

    PubMed Central

    Canale, Leonardo Secchin; Bonatti, Johannes

    2014-01-01

    Internal mammary artery harvesting is an essential part of any coronary artery bypass operation. Totally endoscopic coronary artery bypass graft surgery has become reality in many centers as a safe and effective alternative to conventional surgery in selected patients. Internal mammary artery harvesting is the initial part of the procedure and should be performed equally safely if one wants to achieve excellence in patency rates for the bypass. We here describe the technique for mammary harvesting with the Da Vinci Si robotic system. PMID:24896171

  4. Lionardo da Vinci Cantor, Moritz

    E-print Network

    Gertz, Michael

    Lionardo da Vinci Cantor, Moritz Originalveröffentlichung in: Westermanns illustrierte deutsche Vinci Quelle: Westermanns illustrierte deutsche Monatshefte. Band 44 (1878), S. 369-381 Seite 369 ­ 381 Naturwissenschaftler Leo- nardo da Vinci. Er berichtet ¨uber den in Spiegelschrift verfassten Codex atlantico da Vincis

  5. Load evaluation of the da Vinci surgical system for transoral robotic surgery.

    PubMed

    Fujiwara, Kazunori; Fukuhara, Takahiro; Niimi, Koji; Sato, Takahiro; Kitano, Hiroya

    2015-12-01

    Transoral robotic surgery, performed with the da Vinci surgical system (da Vinci), is a surgical approach for benign and malignant lesions of the oral cavity and laryngopharynx. It provides several unique advantages, which include a 3-dimensional magnified view and ability to see and work around curves or angles. However, the current da Vinci surgical system does not provide haptic feedback. This is problematic because the potential risks specific to the transoral use of the da Vinci include tooth injury, mucosal laceration, ocular injury and mandibular fracture. To assess the potential for intraoperative injuries, we measured the load of the endoscope and the instrument of the da Vinci Si surgical system. We pressed the endoscope and instrument of the da Vinci Si against Load cell six times each and measured the dynamic load and the time-to-maximum load. We also struck the da Vinci Si endoscope and instrument against the Load cell six times each and measured the impact load. The maximum dynamic load was 7.27 ± 1.31 kg for the endoscope and 1.90 ± 0.72 for the instrument. The corresponding time-to-maximum loads were 1.72 ± 0.22 and 1.29 ± 0.34 s, but the impact loads were significantly lower than the dynamic load. It remains possible that a major load is exerted on adjacent structures by continuous contact with the endoscope and instrument of da Vinci Si. However, there is a minor delay in reaching the maximum load. Careful monitoring by an on-site assistant may, therefore, help prevent contiguous injury. PMID:26530845

  6. The experience of totally endoscopic coronary bypass grafting with the robotic system «Da Vinci» in Russia

    NASA Astrophysics Data System (ADS)

    Efendiev, V. U.; Alsov, S. A.; Ruzmatov, T. M.; Mikheenko, I. L.; Chernyavsky, A. M.; Malakhov, E. S.

    2015-11-01

    A new technology - a thoracoscopic coronary bypass grafting with the use of Da Vinci robotic system in Russia is represented by the experience of NRICP. The technology was introduced in Russia in 2011. Overall, one hundred endoscopic coronary artery bypass procedures were performed. We have compared and analyzed results of coronary artery stenting vs minimally invasive coronary artery bypass grafting. According to the results, totally endoscopic coronary artery bypass grafting has several advantages over alternative treatment strategies.

  7. Leonardo da Vinci and the Downburst.

    NASA Astrophysics Data System (ADS)

    Gedzelman, Stanley David

    1990-05-01

    Evidence from the drawings, experiments, and writings of Leonardo da Vinci are presented to demonstrate that da Vinci recognized and, possibly, discovered the downburst and understood its associated airflow. Other early references to vortex flows resembling downbursts are mentioned.

  8. Cutaneous Feedback of Planar Fingertip Deformation and Vibration on a da Vinci Surgical Robot

    E-print Network

    Siena, Università di

    Cutaneous Feedback of Planar Fingertip Deformation and Vibration on a da Vinci Surgical Robot da Vinci Si), but current surgical robots have very limited haptic feedback, despite its expected to leave only the cutaneous cues. This paper presents a novel cutaneous feedback system for the da Vinci

  9. Realization of a single image haze removal system based on DaVinci DM6467T processor

    NASA Astrophysics Data System (ADS)

    Liu, Zhuang

    2014-10-01

    Video monitoring system (VMS) has been extensively applied in domains of target recognition, traffic management, remote sensing, auto navigation and national defence. However the VMS has a strong dependence on the weather, for instance, in foggy weather, the quality of images received by the VMS are distinct degraded and the effective range of VMS is also decreased. All in all, the VMS performs terribly in bad weather. Thus the research of fog degraded images enhancement has very high theoretical and practical application value. A design scheme of a fog degraded images enhancement system based on the TI DaVinci processor is presented in this paper. The main function of the referred system is to extract and digital cameras capture images and execute image enhancement processing to obtain a clear image. The processor used in this system is the dual core TI DaVinci DM6467T - ARM@500MHz+DSP@1GH. A MontaVista Linux operating system is running on the ARM subsystem which handles I/O and application processing. The DSP handles signal processing and the results are available to the ARM subsystem in shared memory.The system benefits from the DaVinci processor so that, with lower power cost and smaller volume, it provides the equivalent image processing capability of a X86 computer. The outcome shows that the system in this paper can process images at 25 frames per second on D1 resolution.

  10. How to Think Like Leonardo da Vinci

    ERIC Educational Resources Information Center

    Caouette, Ralph

    2008-01-01

    To be effective and relevant in twenty-first-century learning, art needs to be more inclusive. In this article, the author discusses how teachers can find a good example in Leonardo da Vinci for building an art program. His art, design, and curiosity are the perfect foundation for any art program, at any level. (Contains 3 resources and 3 online…

  11. The Digital Restoration of Da Vinci's Sketches

    E-print Network

    Sparavigna, Amelia

    2009-01-01

    A sketch, found in one of Leonardo da Vinci's notebooks and covered by the written notes of this genius, has been recently restored. The restoration reveals a possible self-portrait of the artist, drawn when he was young. Here, we discuss the discovery of this self-portrait and the procedure used for restoration. Actually, this is a restoration performed on the digital image of the sketch, a procedure that can easily extended and applied to ancient documents for studies of art and palaeography.

  12. The Case: Bunche-Da Vinci Learning Partnership Academy

    ERIC Educational Resources Information Center

    Eisenberg, Nicole; Winters, Lynn; Alkin, Marvin C.

    2005-01-01

    The Bunche-Da Vinci case described in this article presents a situation at Bunche Elementary School that four theorists were asked to address in their evaluation designs (see EJ791771, EJ719772, EJ791773, and EJ792694). The Bunche-Da Vinci Learning Partnership Academy, an elementary school located between an urban port city and a historically…

  13. Tree branching: Leonardo da Vinci's rule versus biomechanical models.

    PubMed

    Minamino, Ryoko; Tateno, Masaki

    2014-01-01

    This study examined Leonardo da Vinci's rule (i.e., the sum of the cross-sectional area of all tree branches above a branching point at any height is equal to the cross-sectional area of the trunk or the branch immediately below the branching point) using simulations based on two biomechanical models: the uniform stress and elastic similarity models. Model calculations of the daughter/mother ratio (i.e., the ratio of the total cross-sectional area of the daughter branches to the cross-sectional area of the mother branch at the branching point) showed that both biomechanical models agreed with da Vinci's rule when the branching angles of daughter branches and the weights of lateral daughter branches were small; however, the models deviated from da Vinci's rule as the weights and/or the branching angles of lateral daughter branches increased. The calculated values of the two models were largely similar but differed in some ways. Field measurements of Fagus crenata and Abies homolepis also fit this trend, wherein models deviated from da Vinci's rule with increasing relative weights of lateral daughter branches. However, this deviation was small for a branching pattern in nature, where empirical measurements were taken under realistic measurement conditions; thus, da Vinci's rule did not critically contradict the biomechanical models in the case of real branching patterns, though the model calculations described the contradiction between da Vinci's rule and the biomechanical models. The field data for Fagus crenata fit the uniform stress model best, indicating that stress uniformity is the key constraint of branch morphology in Fagus crenata rather than elastic similarity or da Vinci's rule. On the other hand, mechanical constraints are not necessarily significant in the morphology of Abies homolepis branches, depending on the number of daughter branches. Rather, these branches were often in agreement with da Vinci's rule. PMID:24714065

  14. Placement of {sup 125}I implants with the da Vinci robotic system after video-assisted thoracoscopic wedge resection: A feasibility study

    SciTech Connect

    Pisch, Julianna . E-mail: jpisch@bethisraelny.org; Belsley, Scott J.; Ashton, Robert; Wang Lin; Woode, Rudolph; Connery, Cliff

    2004-11-01

    Purpose: To evaluate the feasibility of using the da Vinci robotic system for radioactive seed placement in the wedge resection margin of pigs' lungs. Methods and materials: Video-assisted thoracoscopic wedge resection was performed in the upper and lower lobes in pigs. Dummy {sup 125}I seeds embedded in absorbable sutures were sewn into the resection margin with the aid of the da Vinci robotic system without complications. In the 'loop technique,' the seeds were placed in a cylindrical pattern; in the 'longitudinal,' they were above and lateral to the resection margin. Orthogonal radiographs were taken in the operating room. For dose calculation, Variseed 66.7 (Build 11312) software was used. Results: With looping seed placement, in the coronal view, the dose at 1 cm from the source was 97.0 Gy; in the lateral view it was 107.3 Gy. For longitudinal seed placement, the numbers were 89.5 Gy and 70.0 Gy, respectively. Conclusion: Robotic technology allows direct placement of radioactive seeds into the resection margin by endoscopic surgery. It overcomes the technical difficulties of manipulating in the narrow chest cavity. With the advent of robotic technology, new options in the treatment of lung cancer, as well as other malignant tumors, will become available.

  15. Solving da Vinci stereopsis with depth-edge-selective V2 cells Andrew Assee *, Ning Qian *

    E-print Network

    Qian, Ning

    Solving da Vinci stereopsis with depth-edge-selective V2 cells Andrew Assee *, Ning Qian * Center; received in revised form 22 June 2007 Abstract We propose a new model for da Vinci stereopsis based of a monocular bar next to a binocular rect- angle may not be da Vinci stereopsis per se [Gillam, B., Cook, M

  16. Leonardo da Vinci (1452-1519)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Painter, inventor and polymath, born in Vinci (near Empolia), Italy. Although astronomy does not figure large in Leonardo's works, he realized the possibility of constructing a telescope (`making glasses to see the Moon enlarged'). He suggested that `… in order to observe the nature of the planets, open the roof and bring the image of a single planet onto the base of a concave mirror. The image o...

  17. Elastography Using Multi-Stream GPU: An Application to Online Tracked Ultrasound Elastography, In-Vivo and the da Vinci Surgical System

    PubMed Central

    Deshmukh, Nishikant P.; Kang, Hyun Jae; Billings, Seth D.; Taylor, Russell H.; Hager, Gregory D.; Boctor, Emad M.

    2014-01-01

    A system for real-time ultrasound (US) elastography will advance interventions for the diagnosis and treatment of cancer by advancing methods such as thermal monitoring of tissue ablation. A multi-stream graphics processing unit (GPU) based accelerated normalized cross-correlation (NCC) elastography, with a maximum frame rate of 78 frames per second, is presented in this paper. A study of NCC window size is undertaken to determine the effect on frame rate and the quality of output elastography images. This paper also presents a novel system for Online Tracked Ultrasound Elastography (O-TRuE), which extends prior work on an offline method. By tracking the US probe with an electromagnetic (EM) tracker, the system selects in-plane radio frequency (RF) data frames for generating high quality elastograms. A novel method for evaluating the quality of an elastography output stream is presented, suggesting that O-TRuE generates more stable elastograms than generated by untracked, free-hand palpation. Since EM tracking cannot be used in all systems, an integration of real-time elastography and the da Vinci Surgical System is presented and evaluated for elastography stream quality based on our metric. The da Vinci surgical robot is outfitted with a laparoscopic US probe, and palpation motions are autonomously generated by customized software. It is found that a stable output stream can be achieved, which is affected by both the frequency and amplitude of palpation. The GPU framework is validated using data from in-vivo pig liver ablation; the generated elastography images identify the ablated region, outlined more clearly than in the corresponding B-mode US images. PMID:25541954

  18. Studying and Working Abroad. Leonardo da Vinci Series: Good Practices.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This document profiles recent successful examples of students studying and working abroad as part of the European Commission's Leonardo da Vinci program, which is designed to give students across the European Union the opportunity to experience vocational training in a foreign country. The following examples are presented: (1) 3 Finnish students…

  19. The DaVinci Project: Multimedia in Art and Chemistry.

    ERIC Educational Resources Information Center

    Simonson, Michael; Schlosser, Charles

    1998-01-01

    Provides an overview of the DaVinci Project, a collaboration of students, teachers, and researchers in chemistry and art to develop multimedia materials for grades 3-12 visualizing basic concepts in chemistry and visual art. Topics addressed include standards in art and science; the conceptual framework for the project; and project goals,…

  20. The Potential da Vinci in All of Us

    ERIC Educational Resources Information Center

    Petto, Sarah; Petto, Andrew

    2009-01-01

    The study of the human form is fundamental to both science and art curricula. For vertebrates, perhaps no feature is more important than the skeleton to determine observable form and function. As Leonard da Vinci's famous Proportions of the Human Figure (Virtruvian Man) illustrates, the size, shape, and proportions of the human body are defined by…

  1. Training and Health. Leonardo da Vinci Series: Good Practices.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This document profiles programs in the fields of health and medicine that are offered through the European Commission's Leonardo da Vinci program. The following programs are profiled: (1) CYTOTRAIN (a transnational vocational training program in cervical cancer screening); (2) Apollo (a program of open and distance learning for paramedical…

  2. Women and Technical Professions. Leonardo da Vinci Series: Good Practices.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This document profiles programs for women in technical professions that are offered through the European Commission's Leonardo da Vinci program. The following programs are profiled: (1) Artemis and Diana (vocational guidance programs to help direct girls toward technology-related careers); (2) CEEWIT (an Internet-based information and…

  3. The Harvard University daVinci Center Initiative for Physical Biology

    E-print Network

    #12;The Harvard University daVinci Center Initiative for Physical Biology: Viewing Living Systems rationale. For the past 50-100 years, biology at the molecular and cellular levels has been viewed primarily) on the basis of their shared belief that the next round of fundamental advances in the life sciences

  4. Automatic localization of the da Vinci surgical instrument tips in 3-D transrectal ultrasound.

    PubMed

    Mohareri, Omid; Ramezani, Mahdi; Adebar, Troy K; Abolmaesumi, Purang; Salcudean, Septimiu E

    2013-09-01

    Robot-assisted laparoscopic radical prostatectomy (RALRP) using the da Vinci surgical system is the current state-of-the-art treatment option for clinically confined prostate cancer. Given the limited field of view of the surgical site in RALRP, several groups have proposed the integration of transrectal ultrasound (TRUS) imaging in the surgical workflow to assist with accurate resection of the prostate and the sparing of the neurovascular bundles (NVBs). We previously introduced a robotic TRUS manipulator and a method for automatically tracking da Vinci surgical instruments with the TRUS imaging plane, in order to facilitate the integration of intraoperative TRUS in RALRP. Rapid and automatic registration of the kinematic frames of the da Vinci surgical system and the robotic TRUS probe manipulator is a critical component of the instrument tracking system. In this paper, we propose a fully automatic registration technique based on automatic 3-D TRUS localization of robot instrument tips pressed against the air-tissue boundary anterior to the prostate. The detection approach uses a multiscale filtering technique to identify and localize surgical instrument tips in the TRUS volume, and could also be used to detect other surface fiducials in 3-D ultrasound. Experiments have been performed using a tissue phantom and two ex vivo tissue samples to show the feasibility of the proposed methods. Also, an initial in vivo evaluation of the system has been carried out on a live anaesthetized dog with a da Vinci Si surgical system and a target registration error (defined as the root mean square distance of corresponding points after registration) of 2.68 mm has been achieved. Results show this method's accuracy and consistency for automatic registration of TRUS images to the da Vinci surgical system. PMID:23674418

  5. Plug flow formation and growth in da Vinci Fluids

    E-print Network

    Moshe Schwartz; Raphael Blumenfeld

    2010-04-22

    A new, da Vinci, fluid is described as a model for flow of dense granular matter. We postulate local properties of the fluid, which are generically different from ordinary fluids in that energy is dissipated by solid friction. We present the equation of flow of such a fluid and show that it gives rise to formation and growth of plug flow regions, which is characteristic of flow of granular matter. Simple explicit examples are presented to illustrate the evolution of plug flow regions.

  6. The DaVinci Group: a second modern Ophthalmotrope.

    PubMed

    Pruehsner, William R; Enderle, John D

    2006-01-01

    A group of undergraduate students at the University of Connecticut Biomedical Engineering Program has formed a "club" in order to more fully understand and educate themselves in modeling anatomical processes. This group is called the DaVinci Robot or DaVinci Group. Experiments to mechanically model the six extraocular muscles of the eye have been performed, each meeting little success. While researching methods that would lead to better success, the concept of the Ophthalmotrope was discovered. The Ophthalmotrope is a mechanical visual aide used in teaching the function of the extraocular muscles, prevalent in the mid 1800's. The Group decided to study this device and ultimately decided to build one. The paper presented here discusses our third experiment, currently under investigation, that is, to build an Opthalmotrope. Difficulties with this task are lack of any information with regard to how to construct this device. Presented are descriptions of the Group's initial experiments and research conducted into the construction of the Ophthalmotrpe. In the main body of the presented paper is a description of how the DaVinci Group Ophthalmotrope is constructed. Concluding is a discussion of the progress of the construction of the Ophthalmotrope along with a brief listing of research conducted in order to build the device. PMID:16817648

  7. Da Vinci's codex and the anatomy of healthcare.

    PubMed

    Stephens-Borg, Keith

    2012-08-01

    We usually display a laid-back approach to medical jargon throughout our theatre work. The word 'perioperative' is built from the Greek word 'peri' (around) and the Latin 'operari' (to work). Latin and Greek became the prefixed language of choice for Leonardo da Vinci, and his research was pivotal in determining the way in which surgical procedures are documented. Ancient manuscripts aided the unfolding of the secrets of anatomy, and Leonardo revealed that art was the key in expressive detailed explanation. PMID:23248927

  8. Visual tracking of da Vinci instruments for laparoscopic surgery

    NASA Astrophysics Data System (ADS)

    Speidel, S.; Kuhn, E.; Bodenstedt, S.; Röhl, S.; Kenngott, H.; Müller-Stich, B.; Dillmann, R.

    2014-03-01

    Intraoperative tracking of laparoscopic instruments is a prerequisite to realize further assistance functions. Since endoscopic images are always available, this sensor input can be used to localize the instruments without special devices or robot kinematics. In this paper, we present an image-based markerless 3D tracking of different da Vinci instruments in near real-time without an explicit model. The method is based on different visual cues to segment the instrument tip, calculates a tip point and uses a multiple object particle filter for tracking. The accuracy and robustness is evaluated with in vivo data.

  9. Leonardo da Vinci and the origin of semen

    PubMed Central

    Noble, Denis; DiFrancesco, Dario; Zancani, Diego

    2014-01-01

    It is well known that Leonardo da Vinci made several drawings of the human male anatomy. The early drawings (before 1500) were incorrect in identifying the origin of semen, where he followed accepted teaching of his time. It is widely thought that he did not correct this mistake, a view that is reflected in several biographies. In fact, he made a later drawing (after 1500) in which the description of the anatomy is remarkably accurate and must have been based on careful dissection. In addition to highlighting this fact, acknowledged previously in only one other source, this article reviews the background to Leonardo's knowledge of the relevant anatomy.

  10. Processing and Visualizing Planetary Data Using DaVinci: Updates for Portability and Scriptable Execution

    NASA Astrophysics Data System (ADS)

    Edwards, C. S.; Anwar, S.; Hagee, W.; Doerres, D.; Dickensheid, S.; Christensen, P. R.

    2015-06-01

    We present updates to the DaVinci software toolkit that enable stand-alone reading of ISIS3 files, a link between DaVinci and JMARS, the ingestion and use of geospatial information, and a series of executable THEMIS processing scripts.

  11. A Creative Approach to the Common Core Standards: The Da Vinci Curriculum

    ERIC Educational Resources Information Center

    Chaucer, Harry

    2012-01-01

    "A Creative Approach to the Common Core Standards: The Da Vinci Curriculum" challenges educators to design programs that boldly embrace the Common Core State Standards by imaginatively drawing from the genius of great men and women such as Leonardo da Vinci. A central figure in the High Renaissance, Leonardo made extraordinary contributions as a…

  12. A Value-Engaged Approach for Evaluating the Bunche-Da Vinci Learning Academy

    ERIC Educational Resources Information Center

    Greene, Jennifer C.

    2005-01-01

    In 2001, the Bunche Academy was chosen by its district to join in partnership with the Da Vinci Learning Corporation to embark on an ambitious whole-school reform initiative, especially designed by the corporation for low-performing schools. In this chapter, the author describes how, as illustrated in the Bunche-Da Vinci Learning Academy context,…

  13. A Proposal to Build Evaluation Capacity at the Bunche-Da Vinci Learning Partnership Academy

    ERIC Educational Resources Information Center

    King, Jean A.

    2005-01-01

    The author describes potential evaluation capacity-building activities in contrast to the specifics of an evaluation design. Her response to the case of the Bunche-Da Vinci Learning Partnership Academy is developed in three parts: (1) an initial framing of the Bunche-Da Vinci situation; (2) what should be done before signing a contract; and (3)…

  14. Maximizing use of robot-arm no. 3 in da vinci-assisted thoracic surgery.

    PubMed

    Kajiwara, Naohiro; Maeda, Junichi; Yoshida, Koichi; Kato, Yasufumi; Hagiwara, Masaru; Kakihana, Masatoshi; Ohira, Tatsuo; Kawate, Norihiko; Ikeda, Norihiko

    2015-05-01

    We have previously reported on the importance of appropriate robot-arm settings and replacement of instrument ports in robot-assisted thoracic surgery, because the thoracic cavity requires a large space to access all lesions in various areas of the thoracic cavity from the apex to the diaphragm and mediastinum and the chest wall. (1 - 3) Moreover, it can be difficult to manipulate the da Vinci Surgical System using only arms No. 1 and No. 2 depending on the tumor location. However, arm No. 3 is usually positioned on the same side as arm No. 2, and sometimes it is only used as an assisting-arm to avoid conflict with other arms ( Fig. 1 ). In this report, we show how robot-arm No. 3 can be used with maximum effectiveness in da Vinci-assisted thoracic surgery. [Figure: see text]. PMID:26011219

  15. da Vinci robot-assisted keyhole neurosurgery: a cadaver study on feasibility and safety.

    PubMed

    Marcus, Hani J; Hughes-Hallett, Archie; Cundy, Thomas P; Yang, Guang-Zhong; Darzi, Ara; Nandi, Dipankar

    2015-04-01

    The goal of this cadaver study was to evaluate the feasibility and safety of da Vinci robot-assisted keyhole neurosurgery. Several keyhole craniotomies were fashioned including supraorbital subfrontal, retrosigmoid and supracerebellar infratentorial. In each case, a simple durotomy was performed, and the flap was retracted. The da Vinci surgical system was then used to perform arachnoid dissection towards the deep-seated intracranial cisterns. It was not possible to simultaneously pass the 12-mm endoscope and instruments through the keyhole craniotomy in any of the approaches performed, limiting visualization. The articulated instruments provided greater dexterity than existing tools, but the instrument arms could not be placed in parallel through the keyhole craniotomy and, therefore, could not be advanced to the deep cisterns without significant clashing. The da Vinci console offered considerable ergonomic advantages over the existing operating room arrangement, allowing the operating surgeon to remain non-sterile and seated comfortably throughout the procedure. However, the lack of haptic feedback was a notable limitation. In conclusion, while robotic platforms have the potential to greatly enhance the performance of transcranial approaches, there is strong justification for research into next-generation robots, better suited to keyhole neurosurgery. PMID:25516094

  16. [History of robotics: from archytas of tarentum until Da Vinci robot. (Part II)].

    PubMed

    Sánchez-Martín, F M; Jiménez Schlegl, P; Millán Rodríguez, F; Salvador-Bayarri, J; Monllau Font, V; Palou Redorta, J; Villavicencio Mavrich, H

    2007-03-01

    Robotic surgery is a reality. In order to to understand how new robots work is interesting to know the history of ancient (see part i) and modern robotics. The desire to design automatic machines imitating humans continued for more than 4000 years. Archytas of Tarentum (at around 400 a.C.), Heron of Alexandria, Hsieh-Fec, Al-Jazari, Bacon, Turriano, Leonardo da Vinci, Vaucanson o von Kempelen were robot inventors. At 1942 Asimov published the three robotics laws. Mechanics, electronics and informatics advances at XXth century developed robots to be able to do very complex self governing works. At 1985 the robot PUMA 560 was employed to introduce a needle inside the brain. Later on, they were designed surgical robots like World First, Robodoc, Gaspar o Acrobot, Zeus, AESOP, Probot o PAKI-RCP. At 2000 the FDA approved the da Vinci Surgical System (Intuitive Surgical Inc, Sunnyvale, CA, USA), a very sophisticated robot to assist surgeons. Currently urological procedures like prostatectomy, cystectomy and nephrectomy are performed with the da Vinci, so urology has become a very suitable speciality to robotic surgery. PMID:17658147

  17. Da Vinci facility is state-of-the art.

    PubMed

    Baillie, Jonathan

    2011-10-01

    Growing demand for a wide range of surgical procedures, coupled with a strong belief in the advantages--both to surgeons and patients--of minimally invasive robot-assisted surgery, have seen the Royal Wolverhampton Hospitals NHS Trust open a new twin operating theatre suite, equipped with the Midlands' first da Vinci surgical robot, at Wolverhampton's New Cross Hospital. The two theatres, together with accompanying "preparation" and scrub facilities, and a separate five-bed recovery bay to serve several of the hospital's eight other existing main theatres, were completed to time and on budget recently by modular construction specialist, MTX Contracts, under a pound 2 million design and build contract, as HEJ editor Jonathan Baillie reports. PMID:22053358

  18. Thinking like Leonardo da Vinci and its implications for the modern doctor.

    PubMed

    Baum, Neil

    2013-01-01

    Most people when asked to name the most creative, innovative, and multidimensional people in history would agree that Leonardo da Vinci is either at the top or very close to the number one position on that list. Wouldn't it be nice to think like da Vinci? This article shares the seven unique principles of thinking that da Vinci used that enabled him to be the greatest painter, sculptor, architect, musician, mathematician, engineer, inventor, anatomist, geologist, cartographer, botanist, and writer of his (if not of all) time. This article will take you deep into the notebooks and codices of da Vinci, and suggest ways his ideas can be used by anyone in the healthcare profession to make them a better healthcare provider. PMID:24228380

  19. DaVinci-assisted laparoscopic radical prostatectomy: the learning curve

    NASA Astrophysics Data System (ADS)

    Le, Carter Q.; Ho, Khai-Linh V.; Gettman, Matthew T.

    2007-02-01

    Objective: To define the learning curve for daVinci-assisted laparoscopic radical prostatectomy (DLP) at our institution. Methods: The data from 170 patients who underwent DLP between August 2002 and December 2004 by a single surgeon (MTG) were reviewed. Operative time, hemoglobin decrease, conversion to open procedure, positive margin rates, complications, length of stay (LOS), length of catheterization, continence, and erectile function were analyzed. Results: Hemoglobin decrease (p=0.11), positive margin rates (p=0.80), and early urinary continence (p=0.17) did not significantly correlate with surgical experience. A trend towards lower complications (p=0.07) and an earlier return of erectile function (p=0.09) was noted with increased experience with DLP. Operative time, hospital stay, catheterization time, and open conversion showed significant association with patient sequence. Median operative time for the first 60 and the last 110 patients was 323.5 and 239.5 minutes (p=<0.0001), respectively. Median LOS for the aforementioned groups was 53 and 51 hours (p=0.009). Length of catheterization declined significantly between the first 60 and the remaining 110 patients, 14 as compared to 11.5 days (p=<0.0001). Eight open conversions occurred, six were in the first 30 patients (p=0.03). Conclusion: As an indicator of the learning curve, the operative time in our series showed no correlation with sequence after the 60 th patient. Thus, despite the advantages of robotics, the learning curve to efficient performance of daVinciassisted laparoscopic radical prostatectomy is long. Oncological and functional outcomes should not be affected during the learning curve.

  20. Leonardo da Vinci and Andreas Vesalius; the shoulder girdle and the spine, a comparison.

    PubMed

    Ganseman, Y; Broos, P

    2008-01-01

    Leonardo Da Vinci and Andreas Vesalius were two important renaissance persons; Vesalius was a surgeon-anatomist who delivered innovative work on the study of the human body, Leonardo da Vinci was an artist who delivered strikingly accurate and beautiful drawings on the human body. Below we compare both masters with regard to their knowledge of the working of the muscles, their method and system of dissection and their system and presentation of the drawings. The investigation consisted of a comparison between both anatomists, in particular concerning their study on the shoulder girdle and spine, by reviewing their original work as well as already existing literature on this subject. The investigation led to the conclusion that the drawings mentioned meant a change in history, and were of high quality, centuries ahead of their time. Both were anatomists, both were revolutionary, only one changed history at the moment itself, while the other changed history centuries later. Leonardo has made beautiful drawings that are at a match with the drawings of today or are even better. Vesalius set the start for medicine as a science as it is until this day. Their lives differed as strongly as their impact. In the light of their time, the achievement they made was extraordinary. PMID:18807610

  1. Evolution of robots throughout history from Hephaestus to Da Vinci Robot.

    PubMed

    Iavazzo, Christos; Gkegke, Xanthi-Ekaterini D; Iavazzo, Paraskevi-Evangelia; Gkegkes, Ioannis D

    2014-01-01

    Da Vinci robot is increasingly used for operations adding the advantages of robots to the favor of medicine. This is a historical article with the aim to present the evolution of robots in the medical area from the time of ancient myths to Renaissance and finally to the current revolutionary applications. We endeavored to collect several elegant narratives on the topic. The use of imagination could help the reader to find similarities. A trip from the Greek myths of Hephaestus through Aristotle and Leonardo Da Vinci to the robots of Karel Capek and Isaac Asimov and finally the invention of the medical robots is presented. PMID:25811686

  2. Aerodynamic design of the Cal Poly Da Vinci Human-Powered Helicopter

    NASA Technical Reports Server (NTRS)

    Larwood, Scott; Saiki, Neal

    1990-01-01

    This paper will discuss the methodology used in designing the rotor and drive propellers for the third generation Cal Poly Da Vinci Human-Powered Helicopter. The rotor was designed using a lifting surface, uniform inflow hover analysis code and the propeller was designed using a minimum induced-loss method. Construction, geometry, and operating considerations are discussed as they impact the designs. Optimization of the design performance is also explained. The propellers were tested in a wind tunnel and results are compared with theoretical data. Successful flight tests of the Da Vinci III are discussed.

  3. da Vinci fluids, catch-up dynamics and dense granular flow.

    PubMed

    Blumenfeld, R; Edwards, S F; Schwartz, M

    2010-08-01

    We introduce and study a da Vinci fluid, a fluid whose dissipation is dominated by solid friction. We analyse the flow rheology of a discrete model and then coarse-grain it to the continuum. We find that the model gives rise to behaviour that is characteristic of dense granular fluids. In particular, it leads to plug flow. We analyse the nucleation mechanism of plugs and their development. We find that plug boundaries generically expand and we calculate the growth rate of plug regions. In systems whose internal effective dynamic and static friction coefficients are relatively uniform we find that the linear size of plug regions grows as (time)¹(/)³ . The suitability of the model to granular materials is discussed. PMID:20668906

  4. Da Vinci Fluids, catch-up dynamics and dense granular flow

    E-print Network

    Raphael Blumenfeld; Sam F. Edwards; Moshe Schwartz

    2010-04-22

    We introduce and study a da Vinci Fluid, a fluid whose dissipation is dominated by solid friction. We analyse the flow rheology of a discrete model and then coarse-grain it to the continuum. We find that the model gives rise to behaviour that is characteristic of dense granular fluids. In particular, it leads to plug flow. We analyse the nucleation mechanism of plugs and their development. We find that plug boundaries generically expand and we calculate the growth rate of plug regions. In systems whose internal effective friction coefficient is relatively uniform we find that the linear size of plug regions grows as (time)$^{1/3}$. The suitability of the model to granular materials is discussed.

  5. Transparency of Vocational Qualifications: The Leonardo da Vinci Approach. CEDEFOP Panorama Series.

    ERIC Educational Resources Information Center

    Bjornavold, Jens; Pettersson, Sten

    This report gives an overview of the situation of transparency of vocational qualifications by presenting measures introduced at the European Community level and by drawing attention to projects within the Leonardo da Vinci Program dealing with the issue. A 16-page executive summary appears first. Chapter 1 provides general background and aims.…

  6. Leonardo da Vinci, One Year on...a Different Look at Vocational Training in Europe.

    ERIC Educational Resources Information Center

    Le Magazine, 1996

    1996-01-01

    Discusses the success of the Leonardo da Vinci program, a European laboratory of innovation in vocational training, a priority focus of investment in human resources and intelligence, and a way to mobilize innovative forces beyond national boundaries. Trends identified by the program focus on new information and communication technologies. (JOW)

  7. Visual degradation in Leonardo da Vinci's iconic self-portrait: A nanoscale study

    NASA Astrophysics Data System (ADS)

    Conte, A. Mosca; Pulci, O.; Misiti, M. C.; Lojewska, J.; Teodonio, L.; Violante, C.; Missori, M.

    2014-06-01

    The discoloration of ancient paper, due to the development of oxidized groups acting as chromophores in its chief component, cellulose, is responsible for severe visual degradation in ancient artifacts. By adopting a non-destructive approach based on the combination of optical reflectance measurements and time-dependent density functional theory ab-initio calculations, we describe and quantify the chromophores affecting Leonardo da Vinci's iconic self-portrait. Their relative concentrations are very similar to those measured in modern and ancient samples aged in humid environments. This analysis quantifies the present level of optical degradation of the Leonardo da Vinci's self-portrait which, compared with future measurements, will assess its degradation rate. This is a fundamental information in order to plan appropriate conservation strategies.

  8. The Handedness of Leonardo da Vinci: A Tale of the Complexities of Lateralisation

    ERIC Educational Resources Information Center

    McManus, I. C.; Drury, Helena

    2004-01-01

    The handedness of Leonardo da Vinci is controversial. Although there is little doubt that many of his well-attributed drawings were drawn with the left hand, the hatch marks of the shading going downwards from left to right, it is not clear that he was a natural left-hander, there being some suggestion that he may have become left-handed as the…

  9. [The Vitruvian Man: an anatomical drawing for proportions by Leonardo Da Vinci].

    PubMed

    Le Floch-Prigent, P

    2008-12-01

    The aim of the study was to find out and to analyse the text by Vitruvius which inspired the famous drawing by Leonardo da Vinci (circa 1490) kept in the Galleria dell'Accademia, in Venezia, Italy: the man inscribed in one circle and in one square. The book "de Architectura" by Vitruvius Marcus Pollio was printed several times since the Renaissance when both the roman architecture of antiquity and this text became very popular. From a French translation by Claude Perrault in 1864, it became easy to find a French translation with the original text in Latin (Paris, 2003, Les Belles Lettres, French text by Pierre Gros). The drawing by Leonardo da Vinci illustrates with great accuracy and fidelity the quotation of Vitruvius (with the exception of two of the 12 main relationships). The genius of Leonardo da Vinci was to keep only one trunk, head and neck for two pairs of limbs: scapular and pelvic; to make the circle tangent to the lower edge of the square; to adjust a few features of the quotation for the equilibrium of the whole figure; and of course to bring his incredible skill as a drawer (one of the best of his century). The drawing was made on a sheet of paper 344x245mm, in black ink which became dark brown with time; several lines complete the figure above and below; a short caption and a horizontal scale appear just under the drawing. The celebrity of the drawing, a symbol of the Renaissance, of the equilibrium of man and mankind, of the universality of the artists and intellectuals of the time (Humanism) made it iconic and it has been constantly reproduced and adapted especially for advertisement and logos, not only in the medical field. PMID:18951824

  10. OCT structural examination of Madonna dei Fusi by Leonardo da Vinci

    NASA Astrophysics Data System (ADS)

    Targowski, Piotr; Iwanicka, Magdalena; Sylwestrzak, Marcin; Kaszewska, Ewa A.; Frosinini, Cecilia

    2013-05-01

    Madonna dei Fusi (`Madonna of the Yarnwider') is a spectacular example of Italian Renaissance painting, attributed to Leonardo da Vinci. The aim of this study is to give an account of past restoration procedures. The evidence of a former retouching campaign will be presented with cross-sectional images obtained non-invasively with Optical Coherence Tomography (OCT). Specifically, the locations of overpaintings/retouchings with respect to the original paint layer and secondary varnishes will be given. Additionally, the evidence of a former transfer of the pictorial layer to the new canvas support by detecting the presence of its structure incised into paint layer will be shown.

  11. [The anatomy of a reduced skull model--visualisation of Leonardo da Vinci's anthropology].

    PubMed

    Ahner, E

    2008-04-01

    The article focuses on a rare example of a miniature skull of unknown origin. The profoundness of the anatomical details, conjoint with outstanding virtuosity, reminds of Leonardo da Vinci's anatomical skull studies and asks for additional interpretation beside the emblematic "memento mori"-character. Following the miscellaneous topics of his skull studies an anatomical-anthropological interpretation is proposed. For such a project the mergence of anthropology, history of medicine and history of art was mandatory. Concerning some discrepancies within the anatomical realism, the depiction of a pathology is discussed and beyond the visualisation of a historic concept of brain function. PMID:18548818

  12. Project Da Vinci: a study of long-range air pollution using a balloon-borne Lagrangian measurement platform. Volume 2. Reports of participants in Da Vinci 1. Final report

    SciTech Connect

    Zak, B.D.

    1981-05-01

    Understanding long-range air pollution is becoming increasingly important for the development of cost-effective air-quality control strategies. Project Da Vinci was the beginning of a continuing effort at Sandia to address the need to study long-range air pollution. It consisted of a series of three instrumented, manned balloon flights to study the lower atmosphere in a Lagrangian frame of reference. These experiments gathered information on gases and aerosols, radiation, electrical fields, atmospheric structure, turbulence, diffusion, mesoscale motions, and their interrelationship. Volume II is a collection of the reports from researchers involved in Da Vinci I.

  13. The Da Vinci European BioBank: A Metabolomics-Driven Infrastructure

    PubMed Central

    Carotenuto, Dario; Luchinat, Claudio; Marcon, Giordana; Rosato, Antonio; Turano, Paola

    2015-01-01

    We present here the organization of the recently-constituted da Vinci European BioBank (daVEB, https://www.davincieuropeanbiobank.org/it). The biobank was created as an infrastructure to support the activities of the Fiorgen Foundation (http://www.fiorgen.net/), a nonprofit organization that promotes research in the field of pharmacogenomics and personalized medicine. The way operating procedures concerning samples and data have been developed at daVEB largely stems from the strong metabolomics connotation of Fiorgen and from the involvement of the scientific collaborators of the foundation in international/European projects aimed to tackle the standardization of pre-analytical procedures and the promotion of data standards in metabolomics. PMID:25913579

  14. The uncatchable smile in Leonardo da Vinci's La Bella Principessa portrait.

    PubMed

    Soranzo, Alessandro; Newberry, Michelle

    2015-08-01

    A portrait of uncertain origin recently came to light which, after extensive research and examination, was shown to be that rarest of things: a newly discovered Leonardo da Vinci painting entitled La Bella Principessa. This research presents a new illusion which is similar to that identified in the Mona Lisa; La Bella Principessa's mouth appears to change slant depending on both the Viewing Distance and the Level of Blur applied to a digital version of the portrait. Through a series of psychophysics experiments, it was found that a perceived change in the slant of the La Bella Principessa's mouth influences her expression of contentment thus generating an illusion that we have coined the "uncatchable smile". The elusive quality of the Mona Lisa's smile has been previously reported (Science, 290 (2000) 1299) and so the existence of a similar illusion in a portrait painted prior to the Mona Lisa becomes more interesting. The question remains whether Leonardo da Vinci intended this illusion. In any case, it can be argued that the ambiguity created adds to the portrait's allure. PMID:26049039

  15. Educating in the Design and Construction of Built Environments Accessible to Disabled People: The Leonardo da Vinci AWARD Project

    ERIC Educational Resources Information Center

    Frattari, Antonio; Dalpra, Michela; Bernardi, Fabio

    2013-01-01

    An interdisciplinary partnership within an European Leonardo da Vinci project has developed a new approach aimed at educating secondary school students in the creation of built environments accessible to disabled people and at sensitizing them towards the inclusion of people with disabilities in all realms of social life. The AWARD (Accessible…

  16. Virtual Mobility in Reality: A Study of the Use of ICT in Finnish Leonardo da Vinci Mobility Projects.

    ERIC Educational Resources Information Center

    Valjus, Sonja

    An e-mail survey and interviews collected data on use of information and communications technology (ICT) in Finnish Leonardo da Vinci mobility projects from 2000-02. Findings showed that the most common ICT tools used were e-mail, digital tools, and the World Wide Web; ICT was used during all project phases; the most common problems concerned…

  17. Can We Do da Vinci-Like Surgery With Steerable Needles? Robert J. Webster III, Member, IEEE

    E-print Network

    's Director of Robotic Surgery who will provide a perspective on the integration of these technologies that these robots enable including endonasal surgery, lung surgery, neurosurgery and transurethral prostate surgeryCan We Do da Vinci-Like Surgery With Steerable Needles? Robert J. Webster III, Member, IEEE

  18. Microbiological Analysis of Surfaces of Leonardo Da Vinci's Atlantic Codex: Biodeterioration Risk

    PubMed Central

    Moroni, Catia; Pasquariello, Giovanna; Maggi, Oriana

    2014-01-01

    Following the discovery of discoloration on some pages of the Atlantic Codex (AC) of Leonardo da Vinci kept in the Biblioteca Ambrosiana in Milan, some investigations have been carried out to verify the presence of microorganisms, such as bacteria and fungi. To verify the presence of microorganisms a noninvasive method of sampling has been used that was efficient and allowed us to highlight the microbial facies of the material that was examined using conventional microbiological techniques. The microclimatic conditions in the storage room as well as the water content of the volume were also assessed. The combined observations allowed the conclusion that the discoloration of suspected biological origin on some pages of AC is not related to the presence or current attack of microbial agents. PMID:25574171

  19. Understanding the adoption dynamics of medical innovations: affordances of the da Vinci robot in the Netherlands.

    PubMed

    Abrishami, Payam; Boer, Albert; Horstman, Klasien

    2014-09-01

    This study explored the rather rapid adoption of a new surgical device - the da Vinci robot - in the Netherlands despite the high costs and its controversial clinical benefits. We used the concept 'affordances' as a conceptual-analytic tool to refer to the perceived promises, symbolic meanings, and utility values of an innovation constructed in the wider social context of use. This concept helps us empirically understand robot adoption. Data from 28 in-depth interviews with diverse purposively-sampled stakeholders, and from medical literature, policy documents, Health Technology Assessment reports, congress websites and patients' weblogs/forums between April 2009 and February 2014 were systematically analysed from the perspective of affordances. We distinguished five interrelated affordances of the robot that accounted for shaping and fulfilling its rapid adoption: 'characteristics-related' affordances such as smart nomenclature and novelty, symbolising high-tech clinical excellence; 'research-related' affordances offering medical-technical scientific excellence; 'entrepreneurship-related' affordances for performing better-than-the-competition; 'policy-related' affordances indicating the robot's liberalised provision and its reduced financial risks; and 'communication-related' affordances of the robot in shaping patients' choices and the public's expectations by resonating promising discourses while pushing uncertainties into the background. These affordances make the take-up and use of the da Vinci robot sound perfectly rational and inevitable. This Dutch case study demonstrates the fruitfulness of the affordances approach to empirically capturing the contextual dynamics of technology adoption in health care: exploring in-depth actors' interaction with the technology while considering the interpretative spaces created in situations of use. This approach can best elicit real-life value of innovations, values as defined through the eyes of (potential) users. PMID:25063968

  20. Reforming Upper Secondary Education in Europe. The Leonardo da Vinci Project Post-16 Strategies. Surveys of Strategies for Post-16 Education To Improve the Parity of Esteem for Initial Vocational Education in Eight European Educational Systems. Theory into Practice 92. Institute for Educational Research Publication Series B.

    ERIC Educational Resources Information Center

    Lasonen, Johanna, Ed.

    This book contains the following papers on the Leonardo da Vinci project: "Looking for Post-16 Education Strategies for Parity of Esteem in Europe" (Lasonen); "Improving Parity of Esteem as a Policy Goal" (Makinen, Volanen); "Alternative Strategies for Parity of Esteem between General/Academic and Vocational Education in Europe" (Kamarainen);…

  1. Single-Port Surgery: Laboratory Experience with the daVinci Single-Site Platform

    PubMed Central

    Haber, Georges-Pascal; Kaouk, Jihad; Kroh, Matthew; Chalikonda, Sricharan; Falcone, Tommaso

    2011-01-01

    Background and Objectives: The purpose of this study was to evaluate the feasibility and validity of a dedicated da Vinci single-port platform in the porcine model in the performance of gynecologic surgery. Methods: This pilot study was conducted in 4 female pigs. All pigs had a general anesthetic and were placed in the supine and flank position. A 2-cm umbilical incision was made, through which a robotic single-port device was placed and pneumoperitoneum obtained. A data set was collected for each procedure and included port placement time, docking time, operative time, blood loss, and complications. Operative times were compared between cases and procedures by use of the Student t test. Results: A total of 28 surgical procedures (8 oophorectomies, 4 hysterectomies, 8 pelvic lymph node dissections, 4 aorto-caval nodal dissections, 2 bladder repairs, 1 uterine horn anastomosis, and 1 radical cystectomy) were performed. There was no statistically significant difference in operating times for symmetrical procedures among animals (P=0.3215). Conclusions: This animal study demonstrates that single-port robotic surgery using a dedicated single-site platform allows performing technically challenging procedures within acceptable operative times and without complications or insertion of additional trocars. PMID:21902962

  2. 2D and 3D optical diagnostic techniques applied to Madonna dei Fusi by Leonardo da Vinci

    NASA Astrophysics Data System (ADS)

    Fontana, R.; Gambino, M. C.; Greco, M.; Marras, L.; Materazzi, M.; Pampaloni, E.; Pelagotti, A.; Pezzati, L.; Poggi, P.; Sanapo, C.

    2005-06-01

    3D measurement and modelling have been traditionally applied to statues, buildings, archeological sites or similar large structures, but rarely to paintings. Recently, however, 3D measurements have been performed successfully also on easel paintings, allowing to detect and document the painting's surface. We used 3D models to integrate the results of various 2D imaging techniques on a common reference frame. These applications show how the 3D shape information, complemented with 2D colour maps as well as with other types of sensory data, provide the most interesting information. The 3D data acquisition was carried out by means of two devices: a high-resolution laser micro-profilometer, composed of a commercial distance meter mounted on a scanning device, and a laser-line scanner. The 2D data acquisitions were carried out using a scanning device for simultaneous RGB colour imaging and IR reflectography, and a UV fluorescence multispectral image acquisition system. We present here the results of the techniques described, applied to the analysis of an important painting of the Italian Reinassance: `Madonna dei Fusi', attributed to Leonardo da Vinci.

  3. Allegato I -Bando di concorso per l'assegnazione di contributi finanziari per Tirocini Erasmus+ a.a. 2015/2016 CareerService -Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano | (+39) 02.2399.2599 | (+39) 02.2399.2133 | careerservice.intern

    E-print Network

    .a. 2015/2016 Update: 0 10/06/2015 CareerService - Politecnico di Milano, Piazza Leonardo Da Vinci 32 di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano | (+39) 02.2399.2599 | (+39) 02Service - Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano | (+39) 02.2399.2599 | (+39) 02

  4. Media Images Abbott and Costello Meet the End of the World: Who Is the Enemy in "The Da Vinci Code" and "An Inconvenient Truth?"

    ERIC Educational Resources Information Center

    Beck, Bernard

    2007-01-01

    Popular culture requires readily identifiable villains. Subcultural groups often serve this role, creating controversies. Controversies based on religion are especially bitter. As a rule, religion in the movies is inoffensively sentimental, but "The Da Vinci Code" is both popular and provocative, treading on the dangerous ground of Jesus's…

  5. Leonardo da Vinci's drapery studies: characterization of lead white pigments by µ-XRD and 2D scanning XRF

    NASA Astrophysics Data System (ADS)

    Gonzalez, Victor; Calligaro, Thomas; Pichon, Laurent; Wallez, Gilles; Mottin, Bruno

    2015-11-01

    This work focuses on the composition and microstructure of the lead white pigment employed in a set of paintworks, using a combination of µ-XRD and 2D scanning XRF, directly applied on five drapery studies attributed to Leonardo da Vinci (1452-1519) and conserved in the Département des Arts Graphiques, Musée du Louvre and in the Musée des Beaux- Arts de Rennes. Trace elements present in the composition as well as in the lead white highlights were imaged by 2D scanning XRF. Mineral phases were determined in a fully noninvasive way using a special µ-XRD diffractometer. Phase proportions were estimated by Rietveld refinement. The analytical results obtained will contribute to differentiate lead white qualities and to highlight the artist's technique.

  6. The oldest anatomical handmade skull of the world c. 1508: 'the ugliness of growing old' attributed to Leonardo da Vinci.

    PubMed

    Missinne, Stefaan J

    2014-06-01

    The author discusses a previously unknown early sixteenth-century renaissance handmade anatomical miniature skull. The small, naturalistic skull made from an agate (calcedonia) stone mixture (mistioni) shows remarkable osteologic details. Dr. Saban was the first to link the skull to Leonardo. The three-dimensional perspective of and the search for the senso comune are discussed. Anatomical errors both in the drawings of Leonardo and this skull are presented. The article ends with the issue of physiognomy, his grotesque faces, the Perspective Communis and his experimenting c. 1508 with the stone mixture and the human skull. Evidence, including the Italian scale based on Crazie and Braccia, chemical analysis leading to a mine in Volterra and Leonardo's search for the soul in the skull are presented. Written references in the inventory of Salai (1524), the inventory of the Villa Riposo (Raffaello Borghini 1584) and Don Ambrogio Mazenta (1635) are reviewed. The author attributes the skull c. 1508 to Leonardo da Vinci. PMID:24853982

  7. Leonardo da Vinci's drapery studies: characterization of lead white pigments by µ-XRD and 2D scanning XRF

    NASA Astrophysics Data System (ADS)

    Gonzalez, Victor; Calligaro, Thomas; Pichon, Laurent; Wallez, Gilles; Mottin, Bruno

    2015-08-01

    This work focuses on the composition and microstructure of the lead white pigment employed in a set of paintworks, using a combination of µ-XRD and 2D scanning XRF, directly applied on five drapery studies attributed to Leonardo da Vinci (1452-1519) and conserved in the Département des Arts Graphiques, Musée du Louvre and in the Musée des Beaux-Arts de Rennes. Trace elements present in the composition as well as in the lead white highlights were imaged by 2D scanning XRF. Mineral phases were determined in a fully noninvasive way using a special µ-XRD diffractometer. Phase proportions were estimated by Rietveld refinement. The analytical results obtained will contribute to differentiate lead white qualities and to highlight the artist's technique.

  8. How did Leonardo perceive himself? Metric iconography of da Vinci's self-portraits

    NASA Astrophysics Data System (ADS)

    Tyler, Christopher W.

    2010-02-01

    Some eighteen portraits are now recognized of Leonardo in old age, consolidating the impression from his bestestablished self-portrait of an old man with long white hair and beard. However, his appearance when younger is generally regarded as unknown, although he was described as very beautiful as a youth. Application of the principles of metric iconography, the study of the quantitative analysis of the painted images, provides an avenue for the identification of other portraits that may be proposed as valid portraits of Leonardo during various stages of his life, by himself and by his contemporaries. Overall, this approach identifies portraits of Leonardo by Verrocchio, Raphael, Botticelli, and others. Beyond this physiognomic analysis, Leonardo's first known drawing provides further insight into his core motivations. Topographic considerations make clear that the drawing is of the hills behind Vinci with a view overlooking the rocky promontory of the town and the plain stretching out before it. The outcroppings in the foreground bear a striking resemblance to those of his unique composition, 'The Virgin of the Rocks', suggesting a deep childhood appreciation of this wild terrain. and an identification with that religious man of the mountains, John the Baptist, who was also the topic of Leonardo's last known painting. Following this trail leads to a line of possible selfportraits continuing the age-regression concept back to a self view at about two years of age.

  9. Integrating Leonardo da Vinci's principles of demonstration, uncertainty, and cultivation in contemporary nursing education.

    PubMed

    Story, Lachel; Butts, Janie

    2014-03-01

    Nurses today are facing an ever changing health care system. Stimulated by health care reform and limited resources, nursing education is being challenged to prepare nurses for this uncertain environment. Looking to the past can offer possible solutions to the issues nursing education is confronting. Seven principles of da Vincian thinking have been identified (Gelb, 2004). As a follow-up to an exploration of the curiosità principle (Butts & Story, 2013), this article will explore the three principles of dimostrazione, sfumato, and corporalita. Nursing faculty can set the stage for a meaningful educational experience through these principles of demonstration (dimostrazione), uncertainty (sfumato), and cultivation (corporalita). Preparing nurses not only to manage but also to flourish in the current health care environment that will enhance the nurse's and patient's experience. PMID:23830068

  10. VLTI/VINCI observations of the nucleus of NGC 1068 using the adaptive optics system MACAO

    E-print Network

    M. Wittkowski; P. Kervella; R. Arsenault; F. Paresce; T. Beckert; G. Weigelt

    2004-03-20

    We present the first near-infrared K-band long-baseline interferometric measurement of the prototype Seyfert 2 galaxy NGC 1068 with resolution lambda/B \\~ 10 mas obtained with the Very Large Telescope Interferometer (VLTI) and the two 8.2m Unit Telescopes UT2 and UT3. The adaptive optics system MACAO was employed to deliver wavefront-corrected beams to the K-band commissioning instrument VINCI. A squared visibility amplitude of 16.3 +/- 4.3 % was measured for NGC 1068 at a sky-projected baseline length of 45.8 m and azimuth angle 44.9 deg. This value corresponds to a FWHM of the K-band intensity distribution of 5.0 +/- 0.5 mas (0.4 +/- 0.04 pc) at the distance of NGC 1068) if it consists of a single Gaussian component. Taking into account K-band speckle interferometry observations (Wittkowski et al. 1998; Weinberger et al. 1999; Weigelt et al. 2004), we favor a multi-component model for the intensity distribution where a part of the flux originates from scales clearly smaller than about 5 mas (<0.4 pc), and another part of the flux from larger scales. The K-band emission from the small (< 5 mas) scales might arise from substructure of the dusty nuclear torus, or directly from the central accretion flow viewed through only moderate extinction.

  11. Michelangelo in Florence, Leonardo in Vinci.

    ERIC Educational Resources Information Center

    Herberholz, Barbara

    2003-01-01

    Provides background information on the lives and works of Michelangelo and Leonardo da Vinci. Focuses on the artwork of the artists and the museums where their work is displayed. Includes museum photographs of their work. (CMK)

  12. The PAKY, HERMES, AESOP, ZEUS, and da Vinci robotic systems.

    PubMed

    Kim, Hyung L; Schulam, Peter

    2004-11-01

    In 1965 Gordon Moore, cofounder of Intel Corporation, made his famous observation now known as Moore's law. He predicted that computing capacity will double every 18 to 24 months. Since then, Moore's law has held true; the number of transistors per integrated computer circuit has doubled every couple of years. This relentless advance in computer technology ensures future advances in robotic technology. The ultimate goal of robotics is to allow surgeons to perform difficult procedures with a level of precision and improved clinical outcomes not possible by conventional methods. Robotics has the potential to enable surgeons with various levels of surgical skill to achieve a uniform outcome. As long as urologists continue to embrace technological advances and incorporate beneficial technology into their practice, the outlook for patients remains bright. PMID:15474593

  13. Universit di Pisa Scuola di dottorato in Ingegneria "Leonardo da Vinci"

    E-print Network

    Meini, Beatrice

    ) dal titolo: Displacement-Based Seismic Design of Structures Sommario. Il corso si propone di-BASED SEISMIC DESIGN OF STRUCTURES, di M.J.N. Priesltey, G.M. Calvi e M.J. Kowalsky, pubblicato nel 2007 da IUSS

  14. Peri-operative comparison between daVinci-assisted radical prostatectomy and open radical prostatectomy in obese patients

    NASA Astrophysics Data System (ADS)

    Le, Carter Q.; Ho, Khai-Linh V.; Slezak, Jeffrey M.; Blute, Michael L.; Gettman, Matthew T.

    2007-02-01

    Introduction: While the effects of increasing body mass index on prostate cancer epidemiology and surgical approach have recently been studied, its effects on surgical outcomes are less clear. We studied the perioperative outcomes of obese (BMI >= 30) men treated with daVinci-assisted laparoscopic radical prostatectomy (DLP) and compared them to those treated with open radical retropubic prostatectomy (RRP) in a contemporary time frame. Method: After Institutional Review Board approval, we used the Mayo Clinic Radical Prostatectomy database to identify patients who had undergone DLP by a single surgeon and those who had undergone open RRP by a single surgeon between December 2002 and March 2005. Baseline demographics, peri- and post-operative courses, and complications were collected by retrospective chart review, and variables from the two cohorts compared using chi-square method and least-squares method of linear regression where appropriate. Results: 59 patients who had DLP and 76 undergoing RRP were available for study. Baseline demographics were not statistically different between the two cohorts. Although DLP had a significantly lower clinical stage than RRP (p=0.02), pathological stage was not statistically different (p=0.10). Transfusion rates, hospital stay, overall complications, and pathological Gleason were also not significantly different, nor were PSA progression, positive margin rate, or continence at 1 year. After bilateral nerve-sparing, erections suitable for intercourse with or without therapy at 1 year was 88.5% (23/26) for DLP and 61.2% (30/49) for RRP (p=0.01). Follow-up time was similar. Conclusion: For obese patients, DLP appears to have similar perioperative, as well as short-term oncologic and functional outcomes when compared to open RRP.

  15. VINCI: the VLT Interferometer commissioning instrument

    NASA Astrophysics Data System (ADS)

    Kervella, Pierre; Coudé du Foresto, Vincent; Glindemann, Andreas; Hofmann, Reiner

    2000-07-01

    The Very Large Telescope Interferometer (VLTI) is a complex system, made of a large number of separated elements. To prepare an early successful operation, it will require a period of extensive testing and verification to ensure that the many devices involved work properly together, and can produce meaningful data. This paper describes the concept chosen for the VLTI commissioning instrument, LEONARDO da VINCI, and details its functionalities. It is a fiber based two-way beam combiner, associated with an artificial star and an alignment verification unit. The technical commissioning of the VLTI is foreseen as a stepwise process: fringes will first be obtained with the commissioning instrument in an autonomous mode (no other parts of the VLTI involved); then the VLTI telescopes and optical trains will be tested in autocollimation; finally fringes will be observed on the sky.

  16. The left ventricle as a mechanical engine: from Leonardo da Vinci to the echocardiographic assessment of peak power output-to-left ventricular mass.

    PubMed

    Dini, Frank L; Guarini, Giacinta; Ballo, Piercarlo; Carluccio, Erberto; Maiello, Maria; Capozza, Paola; Innelli, Pasquale; Rosa, Gian M; Palmiero, Pasquale; Galderisi, Maurizio; Razzolini, Renato; Nodari, Savina

    2013-03-01

    The interpretation of the heart as a mechanical engine dates back to the teachings of Leonardo da Vinci, who was the first to apply the laws of mechanics to the function of the heart. Similar to any mechanical engine, whose performance is proportional to the power generated with respect to weight, the left ventricle can be viewed as a power generator whose performance can be related to left ventricular mass. Stress echocardiography may provide valuable information on the relationship between cardiac performance and recruited left ventricular mass that may be used in distinguishing between adaptive and maladaptive left ventricular remodeling. Peak power output-to-mass, obtained during exercise or pharmacological stress echocardiography, is a measure that reflects the number of watts that are developed by 100 g of left ventricular mass under maximal stimulation. Power output-to-mass may be calculated as left ventricular power output per 100 g of left ventricular mass: 100× left ventricular power output divided by left ventricular mass (W/100 g). A simplified formula to calculate power output-to-mass is as follows: 0.222 × cardiac output (l/min) × mean blood pressure (mmHg)/left ventricular mass (g). When the integrity of myocardial structure is compromised, a mismatch becomes apparent between maximal cardiac power output and left ventricular mass; when this occurs, a reduction of the peak power output-to-mass index is observed. PMID:21934524

  17. Diameter determinations from VINCI using global

    E-print Network

    Meisner, Jeff

    Diameter determinations from VINCI using global calibration solutions Jeff Meisner, Sterrewacht of the numbers obtained) at: http://www.strw.leidenuniv.nl/~nevec/VINCI/meisner/ #12;Abstract VINCI is the test. Although intended as a test and commissioning instrument, VINCI has produced many scientifically useful

  18. '-> print _ profile VIRTUAL DA VINCI

    E-print Network

    Laidlaw, David

    ? Are the caves just about fancier videogames, or better cyber-porn? Well sure. As with most technological, the situation is extreme -- there is a sense in which our technology is leaving us behind. As Keefe explains

  19. [Quality control in the implementation of new surgical procedures: Da Vinci robot-assisted systems].

    PubMed

    Niegisch, G; Rabenalt, R; Albers, P

    2011-10-01

    Robot assistance in the surgical treatment of urological malignancies is gaining increasing importance. As is the case in already established surgical procedures, the quality of robot-assisted surgery needs to be controlled and evaluated by appropriate measures. Baseline-parameters of treated patients should be documented precisely. General and operation type-specific parameters should be evaluated in short- as well as in mid-term follow-up. Appropriate and validated instruments should be used. Only by using these measures will it be possible to compare robot-assisted procedures of different institutions and historical data of conventional surgery with regard to oncological and functional efficacy. PMID:21800194

  20. ciclo di conferenze organizzato da Politecnico di Milano,

    E-print Network

    'Informazione, Corso di laurea in Ingegneria delle Telecomunicazioni, Liceo Scientifico Statale Leonardo da Vinci al di'Informazione Politecnico di Milano 02.2399.9714 quintafacolta@polimi.it Liceo Scientifico Statale Leonardo da Vinci Centro dello spazio, al di là del tempo Liceo Scientifico Statale Leonardo da Vinci Centro Congressi

  1. Tourism. Leonardo da Vinci Series: Good Practices.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This brochure, part of a series about good practices in vocational training in the European Union, describes 10 projects that have promoted investment in human resources through training in the tourism sector to promote sustainable, or responsible, tourism. The projects and their countries of origin are as follows: (1) BEEFT, training of mobility…

  2. Diameter determinations from VINCI using global calibration solutions

    E-print Network

    Meisner, Jeff

    Diameter determinations from VINCI using global calibration solutions Je#11;rey Meisner Leiden Observatory Summary. Although primarily built for testing and alignment purposes, the K band instrument VINCI of a global analysis of the entire VINCI data archive. A visibility estimator using coherent integration has

  3. The diameters of Alpha Centauri A and B - A comparison of the asteroseismic and VINCI/VLTI views

    E-print Network

    P. Kervella; F. Thevenin; D. Segransan; G. Berthomieu; B. Lopez; P. Morel; J. Provost

    2003-03-29

    We compare the first direct angular diameter measurements obtained on our closest stellar neighbour, Alpha Centauri, to recent model diameters constrained by asteroseismic observations. Using the VINCI instrument installed at ESO's VLT Interferometer (VLTI), the angular diameters of the two main components of the system, Alpha Cen A and B, were measured with a relative precision of 0.2% and 0.6%, respectively. Particular care has been taken in the calibration of these measurements, considering that VINCI is estimating the fringe visibility using a broadband K filter. We obtain uniform disk angular diameters for Alpha Cen A and B of UD[A] = 8.314 +/- 0.016 mas and UD[B] = 5.856 +/- 0.027 mas, and limb darkened angular diameters of LD[A] = 8.511 +/- 0.020 mas and LD[B] = 6.001 +/- 0.034 mas. Combining these values with the parallax from Soderhjelm (1999), we derive linear diameters of D[A] = 1.224 +/- 0.003 Dsun and D[B] = 0.863 +/- 0.005 Dsun. These values are compatible with the masses published by Thevenin et al.(2002) for both stars.

  4. MONA, LISA and VINCI Soon Ready to Travel to Paranal

    NASA Astrophysics Data System (ADS)

    2000-11-01

    First Instruments for the VLT Interferometer Summary A few months from now, light from celestial objects will be directed for the first time towards ESO's Very Large Telescope Interferometer (VLTI) at the Paranal Observatory (Chile). During this "First Light" event and the subsequent test phase, the light will be recorded with a special test instrument, VINCI (VLT INterferometer Commissioning Instrument). The main components of this high-tech instrument are aptly named MONA (a system that combines the light beams from several telescopes by means of optical fibers) and LISA (the infrared camera). VINCI was designed and constructed within a fruitful collaboration between ESO and several research institutes and industrial companies in France and Germany . It is now being assembled at the ESO Headquarters in Garching (Germany) and will soon be ready for installation at the telescope on Paranal. With the VLTI and VINCI, Europe's astronomers are now entering the first, crucial phase of an exciting scientific and technology venture that will ultimately put the world's most powerful optical/IR interferometric facility in their hands . PR Photo 31/00 : VINCI during tests at the ESO Headquarters in Garching. The VLT Interferometer (VLTI) ESO Press Photo 31/00 ESO Press Photo 31/00 [Preview; JPEG: 400 x 301; 43k] [Normal; JPEG: 800 x 602;208xk] [Full-Res; JPEG: 1923 x 1448; 2.2Mb] PR Photo 31/00 shows the various components of the complex VINCI instrument for the VLT Interferometer , during the current tests at the Optical Laboratory at the ESO Headquarters in Garching (Germany). It will later be installed in "clean-room" conditions within the Interferometric Laboratory at the Paranal Observatory. This electronic photo was obtained for documentary purposes. VINCI (VLT INterferometer Commissioning Instrument) is the "First Light" instrument for the Very Large Telescope Interferometer (VLTI) at the Paranal Observatory (Chile). Early in 2001, it will be used for the first tests of this very complex system. Subsequently, it will serve to tune this key research facility to the highest possible performance. The VLTI is based on the combination of light (beams) from the telescopes at Paranal. Of these, the four 8.2-m Unit Telescopes are already in operation - they will soon be joined by three 1.8-m telescopes that can be relocated on rails, cf. PR Photo 43b/99. By means of a system of mirrors, the light from two or more of these telescopes will be guided to the central Interferometric Laboratory , at the center of the observing platform on Paranal. Information about the heart of this complex system, the Delay Lines that are located in the underground Interferometric Tunnel, is available with the recent ESO PR Photos 26a-e/00. The VLTI will later receive other front-line instruments, e.g. AMBER , MIDI and PRIMA. When fully ready some years from now, the VLTI will produce extremely sharp images. This will have a major impact on different types of exciting astronomical observations, e.g.: * the direct discovery and imaging of extra-solar planets comparable to Jupiter, * the discovery and imaging of low-mass stars such as brown dwarfs, * observations of star-forming regions and to better understand the physical processes that give birth to stars, * spectral analysis of the atmospheres of nearby stars, and * imaging the objects of the very core of our Galaxy and the detection of black holes in active nuclei of galaxies. The VINCI test instrument The new instrument, VINCI , will soon be delivered to Paranal by the Département de Recherche Spatiale (Department for Space Research), a joint unit of the Centre Nationale de la Recherche Scientifique (French National Centre for Scientific Research) and the Paris Observatory. VINCI is a functional copy of the FLUOR instrument - now at the IOTA (Infrared Optical Telescope Array) interferometer - that has been upgraded and adapted to the needs of the VLTI. FLUOR was developed by the Département de Recherche Spatiale (DESPA) of the Paris Observatory. It was used in 1991 at

  5. Overview of the Development Progress of the Ariane 5 Upper Stage VINCI Engine

    NASA Astrophysics Data System (ADS)

    Alliot, P.; Dalbies, E.

    2002-01-01

    The purpose of this paper is to present the major results of the VINCI engine development program at mid-2002. The VINCI engine will power the Ariane 5 ESC-B upper stage and will contribute to provide a 12 t payload capability in geo-stationary transfer orbit to the Ariane 5 launch system. It will also provide a multiple firing capability and therefore the potential to perform a broad array of missions. The VINCI engine is a cryogenic expander cycle engine combining the required features of this cycle, i.e. high performance chamber cooling and high performance hydrogen turbopump, with proven design concepts based on the accumulated experience from previous European cryogenic engines such as the HM7 and the Vulcain. High performance along with a constant focus on reliability, low cost and simplicity of architecture are the design goals of the VINCI program. The proposed paper will recall how the engine design choices were made taking into account these sometimes potentially conflicting criteria and using design to cost methods. The paper will also present the major achievements of the program over the 2001 - 2002 period, i.e. the completion of the engine detailed design, the manufacturing of the first subsystems, the first component and subsystem tests.

  6. A Glove Interface with Tactile feeling display for Humanoid Robotics and Virtual Reality systems

    E-print Network

    Gini, Giuseppina

    Piazza Leonardo Da Vinci 32, Milan Emails: folghera@elet.polimi.it, gini@elet.polimi.it Dario L. Vercesi Politecnico di Milano, DEI Electronic and Information Department Piazza Leonardo Da Vinci 32, Milan Email

  7. Scienti c and technical results from VINCI using coherent estimation of fringe visibility

    E-print Network

    Meisner, Jeff

    Scienti#12;c and technical results from VINCI using coherent estimation of fringe visibility #3; J instrument in order to commission the VLTI, VINCI has taken useful scienti#12;c data in its #12;rst year cycle. Keywords: Stellar interferometry, coherent integration, phase, VINCI, VLTI 1. Introduction VINCI

  8. Building Systems: Passing Fad or Basic Tool?

    ERIC Educational Resources Information Center

    Rezab, Donald

    Building systems can be traced back to a 1516 A.D. project by Leonardo da Vinci and to a variety of prefabrication projects in every succeeding century. When integrated into large and repetitive spatial units through careful design, building systems can produce an architecture of the first order, as evidenced in the award winning design of…

  9. VINCI / VLTI observations of Main Sequence stars

    E-print Network

    P. Kervella; F. Thevenin; P. Morel; J. Provost; G. Berthomieu; D. Segransan; D. Queloz; P. Borde; E. Di Folco; T. Forveille

    2003-09-29

    Main Sequence (MS) stars are by far the most numerous class in the Universe. They are often somewhat neglected as they are relatively quiet objects (but exceptions exist), though they bear testimony of the past and future of our Sun. An important characteristic of the MS stars, particularly the solar-type ones, is that they host the large majority of the known extrasolar planets. Moreover, at the bottom of the MS, the red M dwarfs pave the way to understanding the physics of brown dwarfs and giant planets. We have measured very precise angular diameters from recent VINCI/VLTI interferometric observations of a number of MS stars in the K band, with spectral types between A1V and M5.5V. They already cover a wide range of effective temperatures and radii. Combined with precise Hipparcos parallaxes, photometry, spectroscopy as well as the asteroseismic information available for some of these stars, the angular diameters put strong constraints on the detailed models of these stars, and therefore on the physical processes at play.

  10. Web Text Corpus for Natural Language Processing Vinci Liu and James R. Curran

    E-print Network

    Curran, James R.

    Web Text Corpus for Natural Language Processing Vinci Liu and James R. Curran School of Information Technologies University of Sydney NSW 2006, Australia {vinci,james}@it.usyd.edu.au Abstract Web text has been

  11. Diameter Determinations from VINCI Using Global Calibration Solutions

    NASA Astrophysics Data System (ADS)

    Meisner, Jeffrey

    Although primarily built for testing and alignment purposes, the K band instrument VINCI at the VLTI has produced numerous scientific results on individual targets. The present work consists of a global analysis of the entire VINCI data archive. A visibility estimator using coherent integration has successfully obtained some 15500 raw visibilities on 293 objects. Those results are interpreted using a global solution algorithm which simultaneously solves for calibration (transfer function) fluctuations and for stellar diameters. Stars which do not follow the standard uniform disk visibility curve are automatically or manually flagged and are avoided in the solutions for nightly calibrations

  12. VINCI: The first interferometric instrument at the VLTI, its success story, and technical lessons learned

    E-print Network

    Meisner, Jeff

    VINCI: The first interferometric instrument at the VLTI, its success story, and technical lessons VINCI was the first interferometric instrument implemented at the VLTI, intended primarily as a test approaches in the design of VINCI helped guard against failure of the hardware or data analysis, however

  13. Putting Dreyfus into Action: The European Credit Transfer System

    ERIC Educational Resources Information Center

    Markowitsch, Jorg; Luomi-Messerer, Karin; Becker, Matthias; Spottl, Georg

    2008-01-01

    Purpose: The purpose of this article is to look closely at the development of a European Credit Transfer System for Vocational Education and Training (ECVET). The European Commission, together with the member States, are working on it and several pilot projects have been initiated within the Leonardo da Vinci Programme of the European Commission.…

  14. Mobile Distance Learning with PDAs: Development and Testing of Pedagogical and System Solutions Supporting Mobile Distance Learners

    ERIC Educational Resources Information Center

    Rekkedal, Torstein; Dye, Aleksander

    2007-01-01

    The article discusses basic teaching-learning philosophies and experiences from the development and testing of mobile learning integrated with the online distance education system at NKI (Norwegian Knowledge Institute) Distance Education. The article builds on experiences from three European Union (EU) supported "Leonardo da Vinci" projects on…

  15. Scientific Aspects of Leonardo da Vinci's Drawings: An Interdisciplinary Model.

    ERIC Educational Resources Information Center

    Struthers, Sally A.

    While interdisciplinary courses can help demonstrate the relevance of learning to students and reinforce education from different fields, they can be difficult to implement and are often not cost effective. An interdisciplinary art history course at Ohio's Sinclair Community College incorporates science into the art history curriculum, making use…

  16. Possible role of DaVinci Robot in uterine transplantation

    PubMed Central

    Iavazzo, Christos; Gkegkes, Ioannis D.

    2015-01-01

    Minimally invasive surgery, specifically robotic surgery, became a common technique used by gynecological surgeons over the last decade. The realization of the first human uterine transplantation commenced new perspectives in the treatment of uterine agenesia or infertility in women with history of hysterectomy at a young age. Robot-assisted technique may enhance the safety of the procedure by facilitating the microvascular anastomosis, vaginal anastomosis, and ligaments’ fixation. This study proposes the formation of a multicenter collaboration group to organize a protocol with the aim to clarify the possible role of robotic surgery in uterine transplantation. PMID:26401113

  17. Leonardo Da Vinci, the genius and the monsters. Casual encounters?

    PubMed

    Ciseri, Lorenzo Montemagno

    2014-01-01

    This article analyses Leonardo's interest in monsters and deformed reality, one of the lesser known aspects of his vast and multifaceted output. With the possible exception of his studies of physiognomy, relevant drawings, sketches and short stories represent a marginal aspect of his work, but they are nevertheless significant for historians of teratology. The purpose of this study is to provide a broad overview of the relationship between Leonardo and both the literature on mythological monsters and the reports on monstrous births that he either read about or witnessed personally. While aspects of his appreciation and attention to beauty and the pursuit of perfection and good proportions are the elements most emphasised in Leonardo's work, other no less interesting aspects related to deformity have been considered of marginal importance. My analysis will demonstrate that Leonardo approached the realm of monstrosity as if he considered abnormality a mirror of normality, deformity a mirror of harmony, and disease a mirror of health, as if to emphasise that, ultimately, it is the monster that gives the world the gift of normality. Two special cases of monstrosity are analysed: the famous monster of Ravenna, whose image was found among his papers, and a very rare case of parasitic conjoined twins (thoracopagus parasiticus) portrayed for the first time alive, probably in Florence, by Leonardo himself. PMID:25702382

  18. Distance Learning. Leonardo da Vinci Series: Good Practices.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This brochure, part of a series about good practices in vocational training in the European Union, describes 12 projects that use distance learning to promote lifelong learning in adults. The projects and their countries of origin are as follows: (1) 3D Project, training in the use of IT tools for 3D simulation and animation and practical…

  19. A System for Natural Language Sentence Generation.

    ERIC Educational Resources Information Center

    Levison, Michael; Lessard, Gregory

    1992-01-01

    Describes the natural language computer program, "Vinci." Explains that using an attribute grammar formalism, Vinci can simulate components of several current linguistic theories. Considers the design of the system and its applications in linguistic modelling and second language acquisition research. Notes Vinci's uses in linguistics instruction…

  20. Interferometric observations of eta Carinae with VINCI/VLTI

    E-print Network

    Pierre Kervella

    2006-12-11

    Context: The bright star eta Carinae is the most massive and luminous star in our region of the Milky Way. Though it has been extensively studied using many different techniques, its physical nature and the mechanism that led to the creation of the Homunculus nebula are still debated. Aims: We aimed at resolving the central engine of the eta Carinae complex in the near-infrared on angular scales of a few milliarcseconds. Methods: We used the VINCI instrument of the VLTI to recombine coherently the light from two telescopes in the K band. Results: We report a total of 142 visibility measurements of eta Car, part of which were analyzed by Van Boekel et al. (2003). These observations were carried out on projected baselines ranging from 8 to 112 meters in length, using either two 0.35 m siderostats or two 8-meter Unit Telescopes. These observations cover the November 2001 - January 2004 period. Conclusions: The reported visibility data are in satisfactory agreement with the recent results obtained with AMBER/VLTI by Weigelt et al. (2006), asuming that the flux of eta Car encircled within 70 mas reaches 56% of the total flux within 1400 mas, in the K band. We also confirm that the squared visibility curve of eta Car as a function of spatial frequency follows closely an exponential model.

  1. Multi-agent systems and distributed constraint reasoning for1 regulatory mechanism design in water management2

    E-print Network

    Amigoni, Francesco

    , and Bioengineering, Politecnico di Milano, P.za Leonardo da Vinci, 32, 20133 Milano, Italy. E-mail: matteo Milano, P.za Leonardo da Vinci, 32, 20133 Milano, Italy. E-mail: andrea.castelletti@polimi.it. 3 Associate Professor, Dept. Electronics Information, and Bioengineering, Politecnico di Milano, P.za Leonardo

  2. Leonardo da EmileTruijen

    E-print Network

    Stevin Lect. room B Isaac Newton Lect. room C Daniel Bernoulli Lect. room D James Wa L.r.JCoenraad Stork L laboratories Departments Levels A Leonardo da Vinci - 6 gf B Isaac Newton - 6 gf C Daniel Bernoulli - 6 gf D

  3. Words and Word Usage: Newspaper Text versus the Web Vinci Liu and James R. Curran

    E-print Network

    Curran, James R.

    Words and Word Usage: Newspaper Text versus the Web Vinci Liu and James R. Curran School is the primary representation of a language from which algorithms extract in- formation and build linguistic of English or any other language, it must incorporate samples across all usage of the target language

  4. Words and Word Usage: Newspaper Text versus the Web Vinci Liu and James R. Curran

    E-print Network

    Curran, James R.

    Words and Word Usage: Newspaper Text versus the Web Vinci Liu and James R. Curran School#erent nlp tasks. 1 Introduction In corpus­based Natural Language Processing (nlp), the corpus is the primary specified criteria. If a corpus is intended to be used for study of English or any other language, it must

  5. VLTI/VINCI diameter constraints on the evolutionary status of delta Eri, xi Hya, eta Boo

    E-print Network

    Frederic Thévenin; Pierre Kervella; Bernard Pichon; Pierre Morel; Emmanuel Difolco; Yveline Lebreton

    2005-01-19

    Using VLTI/VINCI angular diameter measurements, we constrain the evolutionary status of three asteroseismic targets: the stars $\\delta$ Eri, $\\xi$ Hya, $\\eta$ Boo. Our predictions of the mean large frequency spacing of these stars are in agreement with published observational estimations. Looking without success for a companion of $\\delta$ Eri we doubt on its classification as an RS CVn star.

  6. 78 FR 58376 - American Asset Development, Inc., aVinci Media Corp., Ceragenix Pharmaceuticals, Inc., Marshall...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-23

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION American Asset Development, Inc., aVinci Media Corp., Ceragenix Pharmaceuticals, Inc., Marshall... Pharmaceuticals, Inc. because it has not filed any periodic reports since the period ended December 31, 2009....

  7. Direct diameter measurement of a star filling its Roche Lobe: The semi-detached binary SS Leporis spatially resolved with VINCI/VLTI

    E-print Network

    T. Verhoelst; E. van Aarle; B. Acke

    2007-05-30

    Stellar evolution in close binary systems is strongly influenced by mass transfer from one star to the other when one component fills its zero-velocity surface or Roche Lobe. SS Lep is a fairly nearby close binary showing the Algol paradox and a shell spectrum, both indicative of (past) mass transfer. To study the process of mass transfer and its evolutionary consequences, we aim at a direct characterisation of the spatial dimensions of the different components of SS Lep with IR interferometry. We use VINCI/VLTI interferometric observations in the K band and photometric observations from the UV to the far-IR. The visibilities are interpreted with simple geometrical models and the Spectral Energy Distribution (SED) is decomposed into the three main components: A star, M star and dust shell/disk. From the SED, we find that the main emitters in the K band are the M star and the circumstellar environment. Both are spatially resolved with the VINCI observations, showing the excess to be circumbinary and showing the M star to have a size equal to its Roche Lobe. We conclude that we have, for the first time, directly resolved a star filling its Roche Lobe. The resulting mass transfer is probably the cause of (1) the circumbinary dust disk of which we see the hot inner region spatially resolved in our observations, (2) the unusually high luminosity of the A star and (3) the shell spectrum seen in the UV and optical spectra.

  8. The PAN-DA data acquisition system

    SciTech Connect

    Petravick, D.; Berg, D.; Berman, E.; Bernett, M.; Constanta-Fanourakis, P.; Dorries, T.; Haire, M.; Kaczar, K; MacKinnon, B.; Moore, C.; Nicinski, T.; Oleynik, G.; Pordes, R.; Sergey, G.; Votava, M.; White, V.

    1989-05-01

    The Online and Data Acquisition software groups at Fermi National Accelerator Laboratory have extended the VAXONLINE data acquisition package to include a VME based data path. The resulting environment, PAN-DA, provides a high throughput for logging, filtering, formatting and selecting events. 10 refs., 1 fig.

  9. Homogeneous generation of iDA neurons with high similarity to bona fide DA neurons using a drug inducible system.

    PubMed

    Park, Hanseul; Kim, Hongwon; Yoo, Junsang; Lee, Jaekwang; Choi, Hwan; Baek, Soonbong; Lee, C Justin; Kim, Janghwan; Lengner, Christopher J; Sung, Jung-Suk; Kim, Jongpil

    2015-12-01

    Recent work generating induced dopaminergic (iDA) neurons using direct lineage reprogramming potentially provides a novel platform for the study and treatment Parkinson's disease (PD). However, one of the most important issues for iDA-based applications is the degree to which iDA neurons resemble the molecular and functional properties of their endogenous DA neuron counterparts. Here we report that the homogeneity of the reprogramming gene expression system is critical for the generation of iDA neuron cultures that are highly similar to endogenous DA neurons. We employed an inducible system that carries iDA-inducing factors as defined transgenes for direct lineage reprogramming to iDA neurons. This system circumvents the need for viral transduction, enabling a more efficient and reproducible reprogramming process for the generation of genetically homogenous iDA neurons. We showed that this inducible system generates iDA neurons with high similarity to their bona fide in vivo counterparts in comparison to direct infection methods. Thus, our results suggest that homogenous expression of exogenous genes in direct lineage reprogramming is critical for the generation of high quality iDA neuron cultures, making such culture systems a valuable resource for iDA-based drug screening and, ultimately, potential therapeutic intervention in PD. PMID:26370928

  10. System for robot-assisted real-time laparoscopic ultrasound elastography

    NASA Astrophysics Data System (ADS)

    Billings, Seth; Deshmukh, Nishikant; Kang, Hyun Jae; Taylor, Russell; Boctor, Emad M.

    2012-02-01

    Surgical robots provide many advantages for surgery, including minimal invasiveness, precise motion, high dexterity, and crisp stereovision. One limitation of current robotic procedures, compared to open surgery, is the loss of haptic information for such purposes as palpation, which can be very important in minimally invasive tumor resection. Numerous studies have reported the use of real-time ultrasound elastography, in conjunction with conventional B-mode ultrasound, to differentiate malignant from benign lesions. Several groups (including our own) have reported integration of ultrasound with the da Vinci robot, and ultrasound elastography is a very promising image guidance method for robotassisted procedures that will further enable the role of robots in interventions where precise knowledge of sub-surface anatomical features is crucial. We present a novel robot-assisted real-time ultrasound elastography system for minimally invasive robot-assisted interventions. Our system combines a da Vinci surgical robot with a non-clinical experimental software interface, a robotically articulated laparoscopic ultrasound probe, and our GPU-based elastography system. Elasticity and B-mode ultrasound images are displayed as picture-in-picture overlays in the da Vinci console. Our system minimizes dependence on human performance factors by incorporating computer-assisted motion control that automatically generates the tissue palpation required for elastography imaging, while leaving high-level control in the hands of the user. In addition to ensuring consistent strain imaging, the elastography assistance mode avoids the cognitive burden of tedious manual palpation. Preliminary tests of the system with an elasticity phantom demonstrate the ability to differentiate simulated lesions of varied stiffness and to clearly delineate lesion boundaries.

  11. M f h L l f S i l E i U i Fli h P hMeasurements of the Level of Surgical Expertise Using Flight PathMeasurements of the Level of Surgical Expertise Using Flight PathMeasurements of the Level of Surgical Expertise Using Flight Pathg p g g A l i f d Vi i R

    E-print Network

    Zhukov, Leonid

    of Surgical Expertise Using Flight Pathg p g g A l i f d Vi i R b ti S i l S tAnalysis from da Vinci Robotic Surgical SystemAnalysis from da Vinci Robotic Surgical SystemAnalysis from da Vinci Robotic Surgical skill during minimally invasive Omaha, NEg g g y i h d Vi i i l , surgery with da Vinci surgical

  12. Leonardo da Vinci, 1452-1519 Perhaps the smartest person ever

    E-print Network

    Ballarini, Roberto

    Ambrosiana di Milano) #12;Wheel for studies on the impossibility of perpetual motion (Codex Forster II, folio Codex Ashburnham (Institute de France, Paris) #12;Firearm with screw elevating gear (Codex Atlanticus

  13. Using Program Theory-Driven Evaluation Science to Crack the Da Vinci Code

    ERIC Educational Resources Information Center

    Donaldson, Stewart I.

    2005-01-01

    Program theory-driven evaluation science uses substantive knowledge, as opposed to method proclivities, to guide program evaluations. It aspires to update, clarify, simplify, and make more accessible the evolving theory of evaluation practice commonly referred to as theory-driven or theory-based evaluation. The evaluator in this chapter provides a…

  14. Moving towards Optimising Demand-Led Learning: The 2005-2007 ECUANET Leonardo Da Vinci Project

    ERIC Educational Resources Information Center

    Dealtry, Richard; Howard, Keith

    2008-01-01

    Purpose: The purpose of this paper is to present the key project learning points and outcomes as a guideline for the future quality management of demand-led learning and development. Design/methodology/approach: The research methodology was based upon a corporate university blueprint architecture and browser toolkit developed by a member of the…

  15. Back to the Drawing Board Reconstructing DaVinci's Vitruvian Man to Teach Anatomy

    ERIC Educational Resources Information Center

    Babaian, C.

    2009-01-01

    In today's high tech world, one hardly expects to see the original chalkboard or blackboard utilized in research, teaching, or scientific communication, but having spent an equal number of years doing both art and biology and dabbling in computer graphics, the author has found the simple technology of the chalkboard and chalk to have incredible…

  16. In Pursuit of Social Betterment: A Proposal to Evaluate the Da Vinci Learning Model

    ERIC Educational Resources Information Center

    Henry, Gary T.

    2005-01-01

    The author presents a proposal that is roughly based on a contingency-based theory of evaluation developed in his book, "Evaluation: An Integrated Framework for Understanding, Guiding, and Improving Policies and Programs" (Mark, Henry, and Julnes, 2000). He and his coauthors stated in this book that social betterment was the ultimate goal of…

  17. Depth of Monocular Elements in a Binocular Scene: The Conditions for da Vinci Stereopsis

    ERIC Educational Resources Information Center

    Cook, Michael; Gillam, Barbara

    2004-01-01

    Quantitative depth based on binocular resolution of visibility constraints is demonstrated in a novel stereogram representing an object, visible to 1 eye only, and seen through an aperture or camouflaged against a background. The monocular region in the display is attached to the binocular region, so that the stereogram represents an object which…

  18. Building Skills and Qualifications among SME Employees. Leonardo da Vinci Good Practices Series.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This document profiles 10 European programs that exemplify good practice in building skills and qualifications among employees of small and medium enterprises (SMEs). The programs profiled are as follows: (1) TRICTSME (a program providing World Wide Web-based information and communication technologies training for SMEs in manufacturing); (2)…

  19. Social and Occupational Integration of Disadvantaged People. Leonardo da Vinci Good Practices Series.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This document profiles nine European programs that exemplify good practice in social and occupational integration of disadvantaged people. The programs profiled are as follows: (1) Restaurant Venezia (a CD-ROM program to improve the reading and writing skills of young people in Luxembourg who have learning difficulties); (2) an integrated…

  20. Configurations Horizontal or vertical goniometer, Theta/2Theta or Theta/Theta geometry Measuring circle diameter Any intermediate setting between 500 mm and 1,080 mm

    E-print Network

    Xie, Xiaoliang Sunney

    every instrument." (Leonardo da Vinci) Driven by the Bruker AXS philosophy ­ always try to outperform of our diffractometers. "Poor is the pupil, not surpassing his master." (Leonardo da Vinci) The time has is the ultimate sophistication." (Leonardo da Vinci) Microelectronics, photonics, Micro Electro Mechanical Systems

  1. Automatic Detection and Segmentation of Robot-Assisted Surgical Motions

    E-print Network

    Shafran, Izhak

    's da Vinci system provide a rich source of motion and video data from surgical procedures. In principle Surgi- cal's da Vinci, introduce new challenges to this paradigm due to its steep learning curve]. Verner et al. [19] collected da Vinci motion data during performance of a training task by several

  2. An Interferometric Study of the Fomalhaut Inner Debris Disk. I. Near-Infrared Detection of Hot Dust with VLTI/VINCI

    NASA Astrophysics Data System (ADS)

    Absil, Olivier; Mennesson, Bertrand; Le Bouquin, Jean-Baptiste; Di Folco, Emmanuel; Kervella, Pierre; Augereau, Jean-Charles

    2009-10-01

    The innermost parts of dusty debris disks around main-sequence stars are currently poorly known due to the high contrast and small angular separation with their parent stars. Using near-infrared interferometry, we aim to detect the signature of hot dust around the nearby A4 V star Fomalhaut, which has already been suggested to harbor a warm dust population in addition to a cold dust ring located at about 140 AU. Archival data obtained with the VINCI instrument at the VLTI are used to study the fringe visibility of the Fomalhaut system at projected baseline lengths ranging from 4 m to 140 m in the K band. A significant visibility deficit is observed at short baselines with respect to the expected visibility of the sole stellar photosphere. This is interpreted as the signature of resolved circumstellar emission, producing a relative flux of 0.88% ± 0.12% with respect to the stellar photosphere. While our interferometric data cannot directly constrain the morphology of the excess emission source, complementary data from the literature allow us to discard an off-axis point-like object as the source of circumstellar emission. We argue that the thermal emission from hot dusty grains located within 6 AU from Fomalhaut is the most plausible explanation for the detected excess. Our study also provides a revised limb-darkened diameter for Fomalhaut (?LD = 2.223 ± 0.022 mas), taking into account the effect of the resolved circumstellar emission. Based on observations made with ESO Telescopes at the Paranal Observatory (public VINCI commissioning data).

  3. Integration Of PanDA Workload Management System With Supercomputers

    E-print Network

    Klimentov, Alexei; The ATLAS collaboration; Maeno, Tadashi; Mashinistov, Ruslan; Nilsson, Paul; Oleynik, Danila; Panitkin, Sergey; Read, Kenneth; Ryabinkin, Evgeny; Wenaus, Torre

    2015-01-01

    The Large Hadron Collider (LHC), operating at the international CERN Laboratory in Geneva, Switzerland, is leading Big Data driven scientific explorations. Experiments at the LHC explore the fundamental nature of matter and the basic forces that shape our universe, and were recently credited for the discovery of a Higgs boson. ATLAS, one of the largest collaborations ever assembled in the sciences, is at the forefront of research at the LHC. To address an unprecedented multi-petabyte data processing challenge, the ATLAS experiment is relying on a heterogeneous distributed computational infrastructure. The ATLAS experiment uses PanDA (Production and Data Analysis) Workload Management System for managing the workflow for all data processing on over 140 data centers. Through PanDA, ATLAS physicists see a single computing facility that enables rapid scientific breakthroughs for the experiment, even though the data centers are physically scattered all over the world. While PanDA currently uses more than 100,000 co...

  4. Tests of stellar model atmospheres by optical interferometry IV: VINCI interferometry and UVES spectroscopy of Menkar

    E-print Network

    M. Wittkowski; J. P. Aufdenberg; T. Driebe; V. Roccatagliata; T. Szeifert; B. Wolff

    2006-10-05

    We present K-band interferometric and optical spectroscopic observations of Menkar obtained with the instruments VINCI and UVES at Paranal Observatory. Spherically symmetric PHOENIX stellar model atmospheres are constrained by comparison to our interferometric and spectroscopic data, and high-precision fundamental parameters of Menkar are obtained. Our high-precision VLTI/VINCI observations in the first and second lobes of the visibility function directly probe the model-predicted strength of the limb darkening effect in the K-band and the stellar angular diameter. The high spectral resolution of UVES allows us to confront observed and model-predicted profiles of atomic lines and molecular bands. We show that our derived PHOENIX model atmosphere for Menkar is consistent with both the measured strength of the limb-darkening in the near-infrared K-band and the profiles of spectral bands around selected atomic lines and TiO bandheads. At the detailed level of our high spectral resolution, however, noticeable discrepancies between observed and synthetic spectra exist. We obtain a Rosseland angular diameter of Theta_Ross=12.20 mas pm 0.04 mas. Together with the Hipparcos parallax, it corresponds to R_Ross=89 pm 5 R_sun, and together with the bolometric flux to T_eff=3795 K pm 70 K.Our approach illustrates the power of combining interferometry and high-resolution spectroscopy to constrain and calibrate stellar model atmospheres. The simultaneous agreement of the model atmosphere with our interferometric and spectroscopic data increases confidence in the reliability of the modelling of this star, while discrepancies at the detailed level of the high resolution spectra can be used to further improve the underlying model.

  5. Fermilab`s DART DA system

    SciTech Connect

    Pordes, R.; Anderson, J.; Berg, D.; Black, D.; Forster, R.; Franzen, J.; Kent, S.; Kwarciany, R.; Meadows, J.; Moore, C.

    1994-04-01

    DART is the new data acquisition system designed and implemented for six Fermilab experiments by the Fermilab Computing Division and the experiments themselves. The complexity of the experiments varies greatly. Their data taking throughput and event filtering requirements range from a few (2-5) to tens (80) of CAMAC, FASTBUS and home built front end crates; from a few 100 KByte/sec to 160 MByte/sec front end data collection rates; and from 0-3000 Mips of level 3 processing. The authors report on the architecture and implementation of DART to this date, and the hardware and software components that are being developed and supported.

  6. Noname manuscript No. (will be inserted by the editor)

    E-print Network

    Allen, Peter K.

    are verified using in-vivo data recorded from the da Vinci R robotic surgical system. The method detects.zhao@intusurg.com Keywords Medical Robotics · Tool Tracking · Computer Vision · da Vinci 1 INTRODUCTION Despite Vinci R surgical system from Intuitive Surgical, Inc. [1] has alleviated many of these issues

  7. Spectroscopic and Interferometric Tests of Stellar Atmosphere Models: UVES and VINCI Measurements of the M-giant ? Cet

    NASA Astrophysics Data System (ADS)

    Roccatagliata, V.; Wittkowski, M.; Aufdenberg, J. P.; Driebe, T.; Wolff, B.; Paresce, F.

    We present VLT/UVES spectroscopic and VLTI/VINCI interferometric observations of the cool giant ? Cet (M2 III). Spherically symmetric PHOENIXstellar atmosphere models are tested by comparison with our spectroscopic and interferometric observations. The high spectral resolution of UVES allows us to constrain the effective temperature and the surface gravity of the star by comparing observed and model predicted bands that are temperature and gravity indicators. High angular resolution and high precision VLTI/VINCI observations directly measure the strength of the limb darkening effect of ? Cet in the K-band. We derive fundamental stellar parameters, namely a Rosseland diameter of 12.08±0.18 mas corresponding to a Rosseland linear radius of 88±6 R?, and an effective temperature of 3805+95 -109 K, using the Hipparcos parallax and the bolometric flux.

  8. Data reduction methods for single-mode optical interferometry - Application to the VLTI two-telescopes beam combiner VINCI

    E-print Network

    P. Kervella; D. Segransan; V. Coude du Foresto

    2004-06-28

    The interferometric data processing methods that we describe in this paper use a number of innovative techniques. In particular, the implementation of the wavelet transform allows us to obtain a good immunity of the fringe processing to false detections and large amplitude perturbations by the atmospheric piston effect, through a careful, automated selection of the interferograms. To demonstrate the data reduction procedure, we describe the processing and calibration of a sample of stellar data from the VINCI beam combiner. Starting from the raw data, we derive the angular diameter of the dwarf star Alpha Cen A. Although these methods have been developed specifically for VINCI, they are easily applicable to other single-mode beam combiners, and to spectrally dispersed fringes.

  9. Robotic Surgery Brings Reversal of Fortune Undoing Vasectomy

    E-print Network

    Washington at Seattle, University of

    Vinci Console S ean Poppoff underwent a vasectomy during his marriage, then divorced and now wants microsurgical vasectomy reversal, Walsh also uses the da Vinci robotic system, in which he manipulates instruments via remote console. Few other U.S. surgeons use da Vinci for vasectomy reversals, and perhaps

  10. The K-band intensity profile of R Leonis probed by VLTI/VINCI

    E-print Network

    D. Fedele; M. Wittkowski; F. Paresce; M. Scholz; P. R. Wood; S. Ciroi

    2004-11-05

    We present near-infrared K-band interferometric measurements of the Mira star R Leonis obtained in April 2001 and January 2002 with the VLTI, the commissioning instrument VINCI, and the two test siderostats. These epochs correspond to near-maximum stellar variability phases $\\sim$ 0.08 and $\\sim$ 1.02 (one cycle later), respectively. The April 2001 data cover a range of spatial frequencies (31--35 cycles/arcsecond) within the first lobe of the visibility function. These measurements indicate a center-to-limb intensity variation (CLV) that is clearly different from a uniform disk (UD) intensity profile. We show that these measured visibility values are consistent with predictions from recent self-excited dynamic Mira model atmospheres that include molecular shells close to continuum-forming layers. We derive high-precision Rosseland diameters of 28.5 +/- 0.4 mas and 26.2 +/- 0.8 mas for the April 2001 and January 2002 data, respectively. Together with literature estimates of the distance and the bolometric flux, these values correspond to linear radii of 350^{+50}_{-40}R$_\\odot$ and 320^{+50}_{-40}R$_\\odot$, and to effective temperatures of 2930 +/- 270K and 3080 +/- 310K, respectively.

  11. VINCI-VLTI measurements of HR 4049: the physical size of the circumbinary envelope

    E-print Network

    Simone Antoniucci; Francesco Paresce; Markus Wittkowski

    2004-11-05

    We present the first detection of the envelope which surrounds the post-AGB binary source HR 4049. VINCI-VLTI K-band interferometric observations of this source imply the existence of a large structure with a Gaussian angular FWHM 22.4 +/- 1.4 mas or uniform disk diameter of 34.9 +/- 1.9 mas. With the Hipparcos parallax of 1.50 +/- 0.64 mas these values correspond to a physical size of 14.9 (+11.1,-4.4) AU and 23.3 (+17.3,-7.0) AU, respectively. Our measurements, covering an azimuth range of about 60 degrees, for the sky-projected baseline, provide information on the geometry of the emitting region and show that there is only a slight variation of the measured angular values along the different directions sampled. Thus, our results are consistent with a spherical geometry of the envelope. However, we cannot completely rule out the existence of an asymmetric envelope (like the circumbinary disk envisaged by some recent models) because of the limited spatial frequency and azimuth range covered by the observations.

  12. AN INTERFEROMETRIC STUDY OF THE FOMALHAUT INNER DEBRIS DISK. I. NEAR-INFRARED DETECTION OF HOT DUST WITH VLTI/VINCI

    SciTech Connect

    Absil, Olivier; Mennesson, Bertrand; Le Bouquin, Jean-Baptiste; Di Folco, Emmanuel; Kervella, Pierre; Augereau, Jean-Charles

    2009-10-10

    The innermost parts of dusty debris disks around main-sequence stars are currently poorly known due to the high contrast and small angular separation with their parent stars. Using near-infrared interferometry, we aim to detect the signature of hot dust around the nearby A4 V star Fomalhaut, which has already been suggested to harbor a warm dust population in addition to a cold dust ring located at about 140 AU. Archival data obtained with the VINCI instrument at the VLTI are used to study the fringe visibility of the Fomalhaut system at projected baseline lengths ranging from 4 m to 140 m in the K band. A significant visibility deficit is observed at short baselines with respect to the expected visibility of the sole stellar photosphere. This is interpreted as the signature of resolved circumstellar emission, producing a relative flux of 0.88% +- 0.12% with respect to the stellar photosphere. While our interferometric data cannot directly constrain the morphology of the excess emission source, complementary data from the literature allow us to discard an off-axis point-like object as the source of circumstellar emission. We argue that the thermal emission from hot dusty grains located within 6 AU from Fomalhaut is the most plausible explanation for the detected excess. Our study also provides a revised limb-darkened diameter for Fomalhaut (theta{sub LD} = 2.223 +- 0.022 mas), taking into account the effect of the resolved circumstellar emission.

  13. An interferometric study of the Fomalhaut inner debris disk. I. Near-infrared detection of hot dust with VLTI/VINCI

    E-print Network

    Absil, Olivier; Bouquin, Jean-Baptiste Le; Di Folco, Emmanuel; Kervella, Pierre; Augereau, Jean-Charles

    2009-01-01

    The innermost parts of dusty debris disks around main sequence stars are currently poorly known due to the high contrast and small angular separation with their parent stars. Using near-infrared interferometry, we aim to detect the signature of hot dust around the nearby A4 V star Fomalhaut, which has already been suggested to harbor a warm dust population in addition to a cold dust ring located at about 140 AU. Archival data obtained with the VINCI instrument at the VLTI are used to study the fringe visibility of the Fomalhaut system at projected baseline lengths ranging from 4 m to 140 m in the K band. A significant visibility deficit is observed at short baselines with respect to the expected visibility of the sole stellar photosphere. This is interpreted as the signature of resolved circumstellar emission, producing a relative flux of 0.88% +/- 0.12% with respect to the stellar photosphere. While our interferometric data cannot directly constrain the morphology of the excess emission source, complementary...

  14. Prototyping a Hybrid Cooperative and Tele-robotic Surgical System for Retinal Microsurgery

    PubMed Central

    Balicki, Marcin; Xia, Tian; Jung, Min Yang; Deguet, Anton; Vagvolgyi, Balazs; Kazanzides, Peter; Taylor, Russell

    2013-01-01

    This paper presents the design of a tele-robotic microsurgical platform designed for development of cooperative and tele-operative control schemes, sensor based smart instruments, user interfaces and new surgical techniques with eye surgery as the driving application. The system is built using the distributed component-based cisst libraries and the Surgical Assistant Workstation framework. It includes a cooperatively controlled EyeRobot2, a da Vinci Master manipulator, and a remote stereo visualization system. We use constrained optimization based virtual fixture control to provide Virtual Remote-Center-of-Motion (vRCM) and haptic feedback. Such system can be used in a hybrid setup, combining local cooperative control with remote tele-operation, where an experienced surgeon can provide hand-over-hand tutoring to a novice user. In another scheme, the system can provide haptic feedback based on virtual fixtures constructed from real-time force and proximity sensor information. PMID:24398557

  15. Evolution of the ATLAS PanDA workload management system for exascale computational science

    NASA Astrophysics Data System (ADS)

    Maeno, T.; De, K.; Klimentov, A.; Nilsson, P.; Oleynik, D.; Panitkin, S.; Petrosyan, A.; Schovancova, J.; Vaniachine, A.; Wenaus, T.; Yu, D.; Atlas Collaboration

    2014-06-01

    An important foundation underlying the impressive success of data processing and analysis in the ATLAS experiment [1] at the LHC [2] is the Production and Distributed Analysis (PanDA) workload management system [3]. PanDA was designed specifically for ATLAS and proved to be highly successful in meeting all the distributed computing needs of the experiment. However, the core design of PanDA is not experiment specific. The PanDA workload management system is capable of meeting the needs of other data intensive scientific applications. Alpha-Magnetic Spectrometer [4], an astro-particle experiment on the International Space Station, and the Compact Muon Solenoid [5], an LHC experiment, have successfully evaluated PanDA and are pursuing its adoption. In this paper, a description of the new program of work to develop a generic version of PanDA will be given, as well as the progress in extending PanDA's capabilities to support supercomputers and clouds and to leverage intelligent networking. PanDA has demonstrated at a very large scale the value of automated dynamic brokering of diverse workloads across distributed computing resources. The next generation of PanDA will allow other data-intensive sciences and a wider exascale community employing a variety of computing platforms to benefit from ATLAS' experience and proven tools.

  16. What Is the Moral Imperative of Workplace Learning: Unlocking the DaVinci Code of Human Resource Development?

    ERIC Educational Resources Information Center

    Short, Tom

    2006-01-01

    In the course of the author's doctoral study, he is exploring the strategic linkages between learning activities in the modern workplace and the long-term success they bring to organisations. For many years, this challenge has been the Holy Grail of human resource (HR) development practitioners, who invest heavily on training and professional…

  17. Interferometric Observations of the Mira Star o Ceti with the VLTI/VINCI Instrument in the Near-Infrared

    NASA Astrophysics Data System (ADS)

    Driebe, T.; Woodruff, H. C.; Eberhardt, M.; Hofmann, K.-H.; Ohnaka, K.; Richichi, A.; Schertl, D.; Schöller, M.; Scholz, M.; Weigelt, G.; Wittkowski, M.; Wood, P. R.

    We present K-band commissioning observations of the Mira star prototype o Cet obtained at the ESO Very Large Telescope Interferometer (VLTI) with the VINCI instrument and two siderostats mounted to the VLTI stations EO and GO, forming an unprojected baseline length of 16 m. Rosseland angular radii were derived from the measured visibilities by fitting theoretical visibility functions obtained from center-to-limb intensity variations (CLVs) of different Mira star models, and the phase dependence of the visibility function and the apparent diameter have been investigated. Comparison of the derived Rosseland radii, effective temperatures, and the shape of the observed visibility functions with model predictions suggests that o Cet is a fundamental mode pulsator.

  18. Evolution of the ATLAS PanDA Workload Management System for Exascale Computational Science

    E-print Network

    Maeno, T; The ATLAS collaboration; Klimentov, A; Nilsson, P; Oleynik, D; Panitkin, S; Petrosyan, A; Schovancova, J; Vaniachine, A; Wenaus, T; Yu, D

    2013-01-01

    An important foundation underlying the impressive success of data processing and analysis in the ATLAS experiment [1] at the LHC [2] is the Production and Distributed Analysis (PanDA) workload management system [3]. PanDA was designed specifically for ATLAS and proved to be highly successful in meeting all the distributed computing needs of the experiment. However, the core design of PanDA is not experiment specific. The PanDA workload management system is capable of meeting the needs of other data intensive scientific applications. Alpha-Magnetic Spectrometer [4], an astro-particle experiment on the International Space Station, and the Compact Muon Solenoid [5], an LHC experiment, have successfully evaluated PanDA and are pursuing its adoption. In this paper, a description of the new program of work to develop a generic version of PanDA will be given, as well as the progress in extending PanDA's capabilities to support supercomputers and clouds and to leverage intelligent networking. PanDA has demonstrated a...

  19. Robot Command Interface Using an Audio-Visual Speech Recognition System

    NASA Astrophysics Data System (ADS)

    Ceballos, Alexánder; Gómez, Juan; Prieto, Flavio; Redarce, Tanneguy

    In recent years audio-visual speech recognition has emerged as an active field of research thanks to advances in pattern recognition, signal processing and machine vision. Its ultimate goal is to allow human-computer communication using voice, taking into account the visual information contained in the audio-visual speech signal. This document presents a command's automatic recognition system using audio-visual information. The system is expected to control the laparoscopic robot da Vinci. The audio signal is treated using the Mel Frequency Cepstral Coefficients parametrization method. Besides, features based on the points that define the mouth's outer contour according to the MPEG-4 standard are used in order to extract the visual speech information.

  20. Tests of stellar model atmospheres by optical interferometry III: NPOI and VINCI interferometry of the M0 giant gamma Sge covering 0.5 - 2.2 microns

    E-print Network

    M. Wittkowski; C. A. Hummel; J. P. Aufdenberg; V. Roccatagliata

    2006-10-05

    Aims: We present a comparison of the visual and NIR intensity profile of the M0 giant gamma Sagittae to plane-parallel ATLAS 9 as well as to plane-parallel & spherical PHOENIX model atmospheres. Methods: We use previously described visual interferometric data obtained with the NPOI in July 2000. We apply the recently developed technique of coherent integration, and thereby obtain visibility data of more spectral channels and with higher precision than before. In addition, we employ new measurements of the K-band diameter of gamma Sagittae obtained with the instrument VINCI at the VLTI in 2002. Results: The spherical PHOENIX model leads to a precise definition of the Rosseland angular diameter and a consistent high-precision diameter value for our NPOI and VLTI/VINCI data sets of Theta_Ross=6.06 pm 0.02 mas, with the Hipparcos parallax corresponding to R_Ross=55 pm 4 R_sun, and with the bolometric flux corresponding to an effective temperature T_eff=3805 pm 55 K. Our visual visibility data close to the first minimum and in the second lobe constrain the limb-darkening effect and are generally consistent with the model atmosphere predictions. The visual closure phases exhibit a smooth transition between 0 and pi. Conclusions: The agreement between the NPOI and VINCI diameter values increases the confidence in the model atmosphere predictions from optical to NIR wavelengths as well as in the calibration and accuracy of both interferometric facilities. The consistent night-by-night diameter values of VINCI give additional confidence in the given uncertainties. The closure phases suggest a slight deviation from circular symmetry, which may be due to surface features, an asymmetric extended layer, or a faint unknown companion.

  1. Interferometric observations of the Mira star o Ceti with the VLTI/VINCI instrument in the near-infrared

    E-print Network

    H. C. Woodruff; M. Eberhardt; T. Driebe; K. -H. Hofmann; K. Ohnaka; A. Richichi; D. Schertl; M. Schoeller; M. Scholz; G. Weigelt; M. Wittkowski; P. R. Wood

    2004-04-13

    We present K-band commissioning observations of the Mira star prototype o Cet obtained at the ESO Very Large Telescope Interferometer (VLTI) with the VINCI instrument and two siderostats. The observations were carried out between 2001 October and December, in 2002 January and December, and in 2003 January. Rosseland angular radii are derived from the measured visibilities by fitting theoretical visibility functions obtained from center-to-limb intensity variations (CLVs) of Mira star models (Bessel et al. 1996, Hofmann et al. 1998, Tej et al. 2003). Using the derived Rosseland angular radii and the SEDs reconstructed from available photometric and spectrophotometric data, we find effective temperatures ranging from T_eff=3192 +/- 200 K at phase phi=0.13 to 2918 +/- 183 K at phi=0.26. Comparison of these Rosseland radii, effective temperatures, and the shape of the observed visibility functions with model predictions suggests that o Cet is a fundamental mode pulsator. Furthermore, we investigated the variation of visibility function and diameter with phase. The Rosseland angular diameter of o Cet increased from 28.9 +/- 0.3 mas (corresponding to a Rosseland radius of 332 +/- 38 R_sun for a distance of D=107 +/- 12 pc) at phi=0.13 to 34.9 +/- 0.4 mas (402 +/- 46 R_sun) at phi=0.4. The error of the Rosseland linear radius almost entirely results from the error of the parallax, since the error of the angular diameter is only approximately 1 %.

  2. Optical design and evaluation of a three-dimensional imaging and ranging system

    E-print Network

    Buller, Gerald S.

    -correlated single-photon counting John Massa, Gerald Buller, Andrew Walker, George Smith, Sergio Cova, Manickam. Massa, G. Buller, A. Walker, and G. Smith were with Department of Physics, Heriot- Watt University Elettronica e Informa- zione, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy. M. Umasuthan and A. Wallace

  3. Discovery and application of energetic principles to feeding systems for beef cattle

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Development of nutritional energetics can be traced to the eras of Leonardo da Vinci (1452-1519) and Lavoisier (1743-1794), who discovered the basic concepts. Lavoisier established relationships among O2 use, CO2 production and heat production (HP). The laws of thermodynamics were discovered in the ...

  4. Adventures in Modeling: Exploring Complex, Dynamic Systems with StarLogo.

    ERIC Educational Resources Information Center

    Colella, Vanessa Stevens; Klopfer, Eric; Resnick, Mitchel

    For thousands of years people from da Vinci to Einstein have created models to help them better understand patterns and processes in the world around them. Computers make it easier for novices to build and explore their own models and learn new scientific ideas in the process. This book introduces teachers and students to designing, creating, and…

  5. gLExec Integration with the ATLAS PanDA Workload Management System

    E-print Network

    Karavakis, Edward; The ATLAS collaboration; Campana, Simone; De, Kaushik; Di Girolamo, Alessandro; Litmaath, Maarten; Maeno, Tadashi; Medrano Llamas, Ramon; Nilsson, Paul; Wenaus, Torre

    2015-01-01

    ATLAS user jobs are executed on Worker Nodes (WNs) by pilots sent to sites by pilot factories. This paradigm serves to allow a high job reliability and although it has clear advantages, such as making the working environment homogeneous, the approach presents security and traceability challenges. To address these challenges, gLExec can be used to let the payloads for each user be executed under a different UNIX user id that uniquely identifies the ATLAS user. This paper describes the recent improvements and evolution of the security model within the ATLAS PanDA system, including improvements in the PanDA pilot, in the PanDA server and their integration with MyProxy, a credential caching system that entitles a person or a service to act in the name of the issuer of the credential. Finally, it presents results from ATLAS user jobs running with gLExec and describes the deployment campaign within ATLAS.

  6. Registration of Prostate Surfaces for Image-Guided Robotic Surgery

    E-print Network

    Jones, Peter JS

    1 Registration of Prostate Surfaces for Image-Guided Robotic Surgery Via the da Vinci System Ilias a necessity. The prostate laparoscopic surgery using the da Vinci system is a minimally invasive, computer assisted and image-guided surgery application that provides surgeons with (i) navigational assistance

  7. Cepheid distances from infrared long-baseline interferometry - I. VINCI/VLTI observations of seven Galactic Cepheids

    E-print Network

    P. Kervella; N. Nardetto; D. Bersier; D. Mourard; V. Coude du Foresto

    2003-12-09

    We report the angular diameter measurements of seven classical Cepheids (X Sgr, eta Aql, W Sgr, zeta Gem, beta Dor, Y Oph and L Car) that we have obtained with the VINCI instrument, installed at ESO's VLT Interferometer (VLTI). We also present reprocessed archive data obtained with the FLUOR/IOTA instrument on zeta Gem, in order to improve the phase coverage of our observations. We obtain average limb darkened angular diameter values of LD(X Sgr) = 1.471 +/- 0.033 mas, LD(eta Aql) = 1.839 +/- 0.028 mas, LD(W Sgr) = 1.312 +/- 0.029 mas, LD(beta Dor) = 1.891 +/- 0.024 mas, LD(zeta Gem) =1.747 +/- 0.061 mas, LD(Y Oph) = 1.437 +/- 0.040 mas and LD(L Car) = 2.988 +/- 0.012 mas. For four of these stars (eta Aql, W Sgr, beta Dor, and L Car) we detect the pulsational variation of their angular diameter. This enables us to compute directly their distances, using a modified version of the Baade-Wesselink method: d(eta Aql) = 276 [+55 -38] pc, d(W Sgr) = 379 [+216 -130] pc, d(beta Dor) = 345 [+175 -80] pc, d(L Car) = 603 [+24 -19] pc. The stated error bars are statistical in nature. Applying a hybrid method, that makes use of the Gieren et al. (1998) Period-Radius relation to estimate the linear diameters, we obtain the following distances (statistical and systematic error bars are mentioned): d(X Sgr) = 324 +/- 7 +/- 17 pc, d(eta Aql) = 264 +/- 4 +/- 14 pc, d(W Sgr) = 386 +/- 9 +/- 21 pc, d(beta Dor) = 326 +/- 4 +/- 19 pc, d(zeta Gem) = 360 +/- 13 +/- 22 pc, d(Y Oph) = 648 +/- 17 +/- 47 pc and d(L Car) = 542 +/- 2 +/- 49 pc.

  8. The next generation of the ATLAS PanDA Monitoring System

    E-print Network

    Schovancova, J; The ATLAS collaboration; Klimentov, A; Love, P; Potekhin, M; Wenaus, T

    2014-01-01

    For many years the PanDA Workload Management System has been the basis for distributed production and analysis for the ATLAS experiment at the LHC. Since the start of data taking PanDA usage has ramped up steadily, with up to 1M completed jobs/day in 2013. The associated monitoring data volume has been rising as well, to levels that present a new set of challenges in the areas of database scalability and monitoring system performance and efficiency. Outside of ATLAS, the PanDA system is also being used in projects like AMS, LSST and a few others. It currently undergoes a significant redesign, both of the core server components responsible for workload management, brokerage and data access, and of the monitoring part, which is critically important for efficient execution of the workflow in a way that’s transparent to the user and also provides an effective set of tools for operational support. The new generation of the PanDA Monitoring Service is designed based on a proven, scalable, industry-standard Web Fr...

  9. Extending the ATLAS PanDA Workload Management System for New Big Data Applications

    E-print Network

    De, K; The ATLAS collaboration; Maeno, T; Nilsson, P; Panitkin, S; Vaniachine, A; Wenaus, T; Yu, D

    2013-01-01

    The LHC experiments are today at the leading edge of large scale distributed data-intensive computational science. The LHC's ATLAS experiment processes data volumes which are particularly extreme, over 130 PB to date, distributed worldwide at over of 120 sites. An important element in the success of the exciting physics results from ATLAS is the highly scalable integrated workflow and dataflow management afforded by the PanDA workload management system, used for all the distributed computing needs of the experiment. The PanDA design is not experiment specific and PanDA is now being extended to support other data intensive scientific applications. Alpha-Magnetic Spectrometer, an astro-particle experiment on the International Space Station, and the Compact Muon Solenoid, an LHC experiment, have successfully evaluated PanDA and are pursuing its adoption. PanDA was cited as an example of "a high performance, fault tolerant software for fast, scalable access to data repositories of many kinds" during the "Big Data...

  10. Integration of PanDA workload management system with Titan supercomputer at OLCF

    E-print Network

    De, Kaushik; The ATLAS collaboration; Oleynik, Danila; Panitkin, Sergey; Petrosyan, Artem; Vaniachine, Alexandre; Wenaus, Torre; Schovancova, Jaroslava

    2015-01-01

    The PanDA (Production and Distributed Analysis) workload management system (WMS) was developed to meet the scale and complexity of LHC distributed computing for the ATLAS experiment. While PanDA currently distributes jobs to more than 100,000 cores at well over 100 Grid sites, next LHC data taking run will require more resources than Grid computing can possibly provide. To alleviate these challenges, ATLAS is engaged in an ambitious program to expand the current computing model to include additional resources such as the opportunistic use of supercomputers. We will describe a project aimed at integration of PanDA WMS with Titan supercomputer at Oak Ridge Leadership Computing Facility (OLCF). Current approach utilizes modi ed PanDA pilot framework for job submission to Titan's batch queues and local data management, with light-weight MPI wrappers to run single threaded workloads in parallel on Titan's multi-core worker nodes. It also gives PanDA new capability to collect, in real time, information about unused...

  11. Integration of PanDA workload management system with Titan supercomputer at OLCF

    E-print Network

    Panitkin, Sergey; The ATLAS collaboration; Klimentov, Alexei; Oleynik, Danila; Petrosyan, Artem; Schovancova, Jaroslava; Vaniachine, Alexandre; Wenaus, Torre

    2015-01-01

    The PanDA (Production and Distributed Analysis) workload management system (WMS) was developed to meet the scale and complexity of LHC distributed computing for the ATLAS experiment. While PanDA currently uses more than 100,000 cores at well over 100 Grid sites with a peak performance of 0.3 petaFLOPS, next LHC data taking run will require more resources than Grid computing can possibly provide. To alleviate these challenges, ATLAS is engaged in an ambitious program to expand the current computing model to include additional resources such as the opportunistic use of supercomputers. We will describe a project aimed at integration of PanDA WMS with Titan supercomputer at Oak Ridge Leadership Computing Facility (OLCF). Current approach utilizes modified PanDA pilot framework for job submission to Titan's batch queues and local data management, with light-weight MPI wrappers to run single threaded workloads in parallel on Titan's multi-core worker nodes. It also gives PanDA new capability to collect, in real tim...

  12. Roles and Delegation of Authority (R/DA) System

    SciTech Connect

    ABBOTT,JOHN P.; HUTCHINS,JAMES C.; SCHOCH,DAVID G.

    1999-10-21

    The processes of defining managerial roles and providing for delegation of authority are essential to any enterprise. At most large organizations, these processes are defined in policy manuals and through sets of standard operating procedures for many, if not all, business and administrative functions. Many of these staff-initiated, administrative functions require the routing of documents for approval to one or more levels of management. These employee-oriented, back office types of workflows tend to require more flexibility in determining to whom these documents should go to, while, at the same time, providing the responsible parties with the flexibility to delegate their approval authority or allow others to review their work. Although this practice is commonplace in manual, paper-based processes that exist in many organizations, it is difficult to provide the same flexibility in the more structured, electronic-based, workflow systems.

  13. Development of noSQL data storage for the ATLAS PanDA Monitoring System

    NASA Astrophysics Data System (ADS)

    Potekhin, M.; ATLAS Collaboration

    2012-06-01

    For several years the PanDA Workload Management System has been the basis for distributed production and analysis for the ATLAS experiment at the LHC. Since the start of data taking PanDA usage has ramped up steadily, typically exceeding 500k completed jobs/day by June 2011. The associated monitoring data volume has been rising as well, to levels that present a new set of challenges in the areas of database scalability and monitoring system performance and efficiency. These challenges are being met with a R&D effort aimed at implementing a scalable and efficient monitoring data storage based on a noSQL solution (Cassandra). We present our motivations for using this technology, as well as data design and the techniques used for efficient indexing of the data. We also discuss the hardware requirements as they were determined by testing with actual data and realistic loads.

  14. PanDA Beyond ATLAS : A Scalable Workload Management System For Data Intensive Science

    E-print Network

    Borodin, M; The ATLAS collaboration; Jha, S; Golubkov, D; Klimentov, A; Maeno, T; Nilsson, P; Oleynik, D; Panitkin, S; Petrosyan, A; Schovancova, J; Vaniachine, A; Wenaus, T

    2014-01-01

    The LHC experiments are today at the leading edge of large scale distributed data-intensive computational science. The LHC's ATLAS experiment processes data volumes which are particularly extreme, over 140 PB to date, distributed worldwide at over of 120 sites. An important element in the success of the exciting physics results from ATLAS is the highly scalable integrated workflow and dataflow management afforded by the PanDA workload management system, used for all the distributed computing needs of the experiment. The PanDA design is not experiment specific and PanDA is now being extended to support other data intensive scientific applications. PanDA was cited as an example of "a high performance, fault tolerant software for fast, scalable access to data repositories of many kinds" during the "Big Data Research and Development Initiative" announcement, a 200 million USD U.S. government investment in tools to handle huge volumes of digital data needed to spur science and engineering discoveries. In this talk...

  15. On the physical characterization of SAR Permanent Scatterers in urban areas

    E-print Network

    Perissin, Daniele

    , Politecnico di Milano- Piazza L. da Vinci 32, 20133 Milano, Italy Alessandro Ferretti, Tele-Rilevamento Europa- Piazza L. da Vinci 32, 20133 Milano, Italy Fabio Rocca, Politecnico di Milano- Piazza L. da Vinci 32

  16. Spacelab data processing facility (SLDPF) Quality Assurance (QA)/Data Accounting (DA) expert systems: Transition from prototypes to operational systems

    NASA Technical Reports Server (NTRS)

    Basile, Lisa

    1988-01-01

    The SLDPF is responsible for the capture, quality monitoring processing, accounting, and shipment of Spacelab and/or Attached Shuttle Payloads (ASP) telemetry data to various user facilities. Expert systems will aid in the performance of the quality assurance and data accounting functions of the two SLDPF functional elements: the Spacelab Input Processing System (SIPS) and the Spacelab Output Processing System (SOPS). Prototypes were developed for each as independent efforts. The SIPS Knowledge System Prototype (KSP) used the commercial shell OPS5+ on an IBM PC/AT; the SOPS Expert System Prototype used the expert system shell CLIPS implemented on a Macintosh personal computer. Both prototypes emulate the duties of the respective QA/DA analysts based upon analyst input and predetermined mission criteria parameters, and recommended instructions and decisions governing the reprocessing, release, or holding for further analysis of data. These prototypes demonstrated feasibility and high potential for operational systems. Increase in productivity, decrease of tedium, consistency, concise historial records, and a training tool for new analyses were the principal advantages. An operational configuration, taking advantage of the SLDPF network capabilities, is under development with the expert systems being installed on SUN workstations. This new configuration in conjunction with the potential of the expert systems will enhance the efficiency, in both time and quality, of the SLDPF's release of Spacelab/AST data products.

  17. Spacelab data processing facility (SLDPF) quality assurance (QA)/data accounting (DA) expert systems - Transition from prototypes to operational systems

    NASA Technical Reports Server (NTRS)

    Basile, Lisa

    1988-01-01

    The SLDPF is responsible for the capture, quality monitoring processing, accounting, and shipment of Spacelab and/or Attached Shuttle Payloads (ASP) telemetry data to various user facilities. Expert systems will aid in the performance of the quality assurance and data accounting functions of the two SLDPF functional elements: the Spacelab Input Processing System (SIPS) and the Spacelab Output Processing System (SOPS). Prototypes were developed for each as independent efforts. The SIPS Knowledge System Prototype (KSP) used the commercial shell OPS5+ on an IBM PC/AT; the SOPS Expert System Prototype used the expert system shell CLIPS implemented on a Macintosh personal computer. Both prototypes emulate the duties of the respective QA/DA analysts based upon analyst input and predetermined mission criteria parameters, and recommended instructions and decisions governing the reprocessing, release, or holding for further analysis of data. These prototypes demonstrated feasibility and high potential for operational systems. Increase in productivity, decrease of tedium, consistency, concise historical records, and a training tool for new analyses were the principal advantages. An operational configuration, taking advantage of the SLDPF network capabilities, is under development with the expert systems being installed on SUN workstations. This new configuration in conjunction with the potential of the expert systems will enhance the efficiency, in both time and quality, of the SLDPF's release of Spacelab/AST data products.

  18. Research Signpost 37/661 (2), Fort P.O., Trivandrum-695 023, Kerala, India

    E-print Network

    Simoncini, Valeria

    Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milano, Italy Perotti, Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza Leonardo da Vinci, 32

  19. A Chaotic Dynamical System that Paints

    E-print Network

    Tuhin Sahai; George Mathew; Amit Surana

    2015-04-08

    Can a dynamical system paint masterpieces such as Da Vinci's Mona Lisa or Monet's Water Lilies? Moreover, can this dynamical system be chaotic in the sense that although the trajectories are sensitive to initial conditions, the same painting is created every time? Setting aside the creative aspect of painting a picture, in this work, we develop a novel algorithm to reproduce paintings and photographs. Combining ideas from ergodic theory and control theory, we construct a chaotic dynamical system with predetermined statistical properties. If one makes the spatial distribution of colors in the picture the target distribution, akin to a human, the algorithm first captures large scale features and then goes on to refine small scale features. Beyond reproducing paintings, this approach is expected to have a wide variety of applications such as uncertainty quantification, sampling for efficient inference in scalable machine learning for big data, and developing effective strategies for search and rescue. In particular, our preliminary studies demonstrate that this algorithm provides significant acceleration and higher accuracy than competing methods for Markov Chain Monte Carlo (MCMC).

  20. Development of noSQL data storage for the ATLAS PanDA Monitoring System

    NASA Astrophysics Data System (ADS)

    Ito, H.; Potekhin, M.; Wenaus, T.

    2012-12-01

    For several years the PanDA Workload Management System has been the basis for distributed production and analysis for the ATLAS experiment at the LHC. Since the start of data taking PanDA usage has ramped up steadily, typically exceeding 500k completed jobs/day by June 2011. The associated monitoring data volume has been rising as well, to levels that present a new set of challenges in the areas of database scalability and monitoring system performance and efficiency. These challenges are being met with an R&D effort aimed at implementing a scalable and efficient monitoring data storage based on a noSQL solution (Cassandra). We present our motivations for using this technology, as well as data design and the techniques used for efficient indexing of the data. We also discuss the hardware requirements as they were determined by testing with actual data and realistic rate of queries. In conclusion, we present our experience with operating a Cassandra cluster over an extended period of time and with data load adequate for planned application.

  1. Refurbishment, reloading of the Da Lat Nuclear Research Reactor and renovation of its control system

    SciTech Connect

    Tran Ha Anh; Tran Khacan; Trinh Dinh Hal

    1994-12-31

    As the main scientific tool at the Nuclear Research Institute (NRI), the Da Lat Nuclear Research Reactor is playing a special role in the development of nuclear application in Viet Nam. Reconstructed from the previous TRIGAMARK II, it has been operating since, 1984, totalling 13,500 hrs. Since November 1992 it has undergone a general inspection followed by a complete refurbishment in response to technical requirement for ensuring its reliability and safety. The reactor, shut down for main inspection and refurbishment tasks until March 1993, was put into operation alternately with the remaining refurbishment works. In pullet the renovation of its control and instrumentation system has been carried out. This has been thought necessary due to spare part procurement problems and the need to modernize the system for improving its reliability. Finally, a programme for reloading the reactor core is being implemented, in order to increase its reserve reactivity.

  2. Representation and Control of Infinite Dimensional Systems, by A. Bensoussan, G. Da Prato, M. C. Delfour, S. K. Mitter

    E-print Network

    Rathinam, Muruhan

    Representation and Control of Infinite Dimensional Systems, 2nd edition by A. Bensoussan, G. Da with the behavior of dynamical systems. If we look back to the 1 #12;inception of control theory as a subject the treatment of the first 1992- 1993 two-volume edition [2] was in using the modern functional analytically

  3. Verification of relationships between anthropometric variables among ureteral stents recipients and ureteric lengths: a challenge for Vitruvian-da Vinci theory

    PubMed Central

    Acelam, Philip A

    2015-01-01

    Objective To determine and verify how anthropometric variables correlate to ureteric lengths and how well statistical models approximate the actual ureteric lengths. Materials and methods In this work, 129 charts of endourological patients (71 females and 58 males) were studied retrospectively. Data were gathered from various research centers from North and South America. Continuous data were studied using descriptive statistics. Anthropometric variables (age, body surface area, body weight, obesity, and stature) were utilized as predictors of ureteric lengths. Linear regressions and correlations were used for studying relationships between the predictors and the outcome variables (ureteric lengths); P-value was set at 0.05. To assess how well statistical models were capable of predicting the actual ureteric lengths, percentages (or ratios of matched to mismatched results) were employed. Results The results of the study show that anthropometric variables do not correlate well to ureteric lengths. Statistical models can partially estimate ureteric lengths. Out of the five anthropometric variables studied, three of them: body frame, stature, and weight, each with a P<0.0001, were significant. Two of the variables: age (R2=0.01; P=0.20) and obesity (R2=0.03; P=0.06), were found to be poor estimators of ureteric lengths. None of the predictors reached the expected (match:above:below) ratio of 1:0:0 to qualify as reliable predictors of ureteric lengths. Conclusion There is not sufficient evidence to conclude that anthropometric variables can reliably predict ureteric lengths. These variables appear to lack adequate specificity as they failed to reach the expected (match:above:below) ratio of 1:0:0. Consequently, selections of ureteral stents continue to remain a challenge. However, height (R2=0.68) with the (match:above:below) ratio of 3:3:4 appears suited for use as estimator, but on the basis of decision rule. Additional research is recommended for stent improvements and ureteric length determinations. PMID:26317082

  4. gLExec Integration with the ATLAS PanDA Workload Management System

    E-print Network

    Karavakis, Edward; The ATLAS collaboration; Campana, Simone; De, Kaushik; Di Girolamo, Alessandro; Litmaath, Maarten; Maeno, Tadashi; Medrano Llamas, Ramon; Nilsson, Paul; Wenaus, Torre

    2015-01-01

    The ATLAS Experiment at the Large Hadron Collider has collected data during Run 1 and is ready to collect data in Run 2. The ATLAS data are distributed, processed and analysed at more than 130 grid and cloud sites across the world. At any given time, there are more than 150,000 concurrent jobs running and about a million jobs are submitted on a daily basis on behalf of thousands of physicists within the ATLAS collaboration. The Production and Distributed Analysis (PanDA) workload management system has proved to be a key component of ATLAS and plays a crucial role in the success of the large-scale distributed computing as it is the sole system for distributed processing of Grid jobs across the collaboration since October 2007. ATLAS user jobs are executed on worker nodes by pilots sent to the sites by pilot factories. This pilot architecture has greatly improved job reliability and although it has clear advantages, such as making the working environment homogeneous by hiding any potential heterogeneities, the ...

  5. Small Delay and High Performance AD/DA Converters of Lease Circuit System for AM&FM Broadcast

    NASA Astrophysics Data System (ADS)

    Takato, Kenji; Suzuki, Dai; Ishii, Takashi; Kobayashi, Masato; Yamada, Hirokazu; Amano, Shigeru

    Many AM&FM broadcasting stations in Japan are connected by the leased circuit system of NTT. Small delay and high performance AD/DA converter was developed for the system. The system was designed based on ITU-T J.41 Recommendation (384kbps), the transmission signal is 11bit-32 kHz where the Gain-frequency characteristics between 40Hz to 15kHz have to be quite flat. The ??AD/DA converter LSIs for audio application in the market today realize very high performance. However the performance is not enough for the leased circuit system. We found that it is not possible to meet the delay and Gain-frequency requirements only by using ??AD/DA converter LSI in normal operation, because 15kHz the highest frequency and 16kHz Nyquist frequency are too close, therefore there are aliasing around Nyquist frequency. In this paper, we designed AD/DA architecture having small delay (1msec) and sharp cut off LPF (100dB attenuation at 16kHz, and 1500dB/Oct from 15kHz to 16kHz) by operating ??AD/DA converter LSIs over-sampling rate such as 128kHz and by adding custom LPF designed Infinite Impulse Response (IIR) filter. The IIR filter is a 16th order elliptic type and it is consist of eight biquad filters in series. We described how to evaluate the stability of IIR filter theoretically by calculating frequency response, Pole and Zero Layout and impulse response of each biquad filter, and experimentally by adding overflow detection circuit on each filters and input overlord signal.

  6. Tiled architecture of a CNN-mostly IP system

    NASA Astrophysics Data System (ADS)

    Spaanenburg, Lambert; Malki, Suleyman

    2009-05-01

    Multi-core architectures have been popularized with the advent of the IBM CELL. On a finer grain the problems in scheduling multi-cores have already existed in the tiled architectures, such as the EPIC and Da Vinci. It is not easy to evaluate the performance of a schedule on such architecture as historical data are not available. One solution is to compile algorithms for which an optimal schedule is known by analysis. A typical example is an algorithm that is already defined in terms of many collaborating simple nodes, such as a Cellular Neural Network (CNN). A simple node with a local register stack together with a 'rotating wheel' internal communication mechanism has been proposed. Though the basic CNN allows for a tiled implementation of a tiled algorithm on a tiled structure, a practical CNN system will have to disturb this regularity by the additional need for arithmetical and logical operations. Arithmetic operations are needed for instance to accommodate for low-level image processing, while logical operations are needed to fork and merge different data streams without use of the external memory. It is found that the 'rotating wheel' internal communication mechanism still handles such mechanisms without the need for global control. Overall the CNN system provides for a practical network size as implemented on a FPGA, can be easily used as embedded IP and provides a clear benchmark for a multi-core compiler.

  7. gLExec and MyProxy integration in the ATLAS/OSG PanDA workload management system

    NASA Astrophysics Data System (ADS)

    Caballero, J.; Hover, J.; Litmaath, M.; Maeno, T.; Nilsson, P.; Potekhin, M.; Wenaus, T.; Zhao, X.

    2010-04-01

    Worker nodes on the grid exhibit great diversity, making it difficult to offer uniform processing resources. A pilot job architecture, which probes the environment on the remote worker node before pulling down a payload job, can help. Pilot jobs become smart wrappers, preparing an appropriate environment for job execution and providing logging and monitoring capabilities. PanDA (Production and Distributed Analysis), an ATLAS and OSG workload management system, follows this design. However, in the simplest (and most efficient) pilot submission approach of identical pilots carrying the same identifying grid proxy, end-user accounting by the site can only be done with application-level information (PanDA maintains its own end-user accounting), and end-user jobs run with the identity and privileges of the proxy carried by the pilots, which may be seen as a security risk. To address these issues, we have enabled PanDA to use gLExec, a tool provided by EGEE which runs payload jobs under an end-user's identity. End-user proxies are pre-staged in a credential caching service, MyProxy, and the information needed by the pilots to access them is stored in the PanDA DB. gLExec then extracts from the user's proxy the proper identity under which to run. We describe the deployment, installation, and configuration of gLExec, and how PanDA components have been augmented to use it. We describe how difficulties were overcome, and how security risks have been mitigated. Results are presented from OSG and EGEE Grid environments performing ATLAS analysis using PanDA and gLExec.

  8. Tests of stellar model atmospheres by optical interferometry: VLTI/VINCI limb-darkening measurements of the M4 giant psi phe

    E-print Network

    M. Wittkowski; J. P. Aufdenberg; P. Kervella

    2003-10-06

    We present K-band interferometric measurements of the limb-darkened intensity profile of the M4 giant star psi Phoenicis obtained with VLTI/VINCI. High-precision squared visibility amplitudes in the second lobe of the visibility function were obtained employing two 8.2 m UTs. This succeeded one month after light from UTs was first combined for interferometric fringes. In addition, we sampled the visibility function at small spatial frequencies using the 40cm test siderostats. Our measurement constrains the diameter of the star as well as its CLV. We construct a spherical hydrostatic PHOENIX model atmosphere based on spectrophotometric data from the literature and confront its CLV prediction with our interferometric measurement. We compare as well CLV predictions by plane-parallel hydrostatic PHOENIX, ATLAS9, and ATLAS12 models. We find that the Rosseland angular diameter as predicted by comparison of the spherical PHOENIX model with spectrophotometry is in good agreement with our interferometric diameter measurement. The shape of our measured visibility function in the second lobe is consistent with all considered PHOENIX and ATLAS model predictions, and significantly different from UD and FDD models. We derive high-precision fundamental parameters for psi Phe, namely a Rosseland angular diameter of 8.13 +/- 0.2 mas, with the Hipparcos parallax corresponding to a Rosseland linear radius R of 86 +/- 3 Rsun and an effective temperature of 3550 +/- 50 K, with R corresponding to a luminosity of log (L/Lsun)=3.02 +/- 0.06. Together with evolutionary models, these values are consistent with a mass of 1.3 +/- 0.2 Msun, and a surface gravity of log g = 0.68 +/- 0.11.

  9. [UPDATE ON MINIMALLY INVASIVE CARDIAC SURGERY].

    PubMed

    Fujita, Tomoyuki; Kobayashi, Junjiro

    2015-09-01

    Minimally invasive surgery is an attractive choice for patients undergoing major cardiac procedures. This paper focuses on minimally invasive mitral valve repair and robotic surgery using the da Vinci Surgical System. Minimally invasive mitral valve repair is usually performed through a right minithoracotomy with direct vision. The techniques used in this procedure are similar to those in open surgery. The outcome of minimally invasive mitral valve repair is also equivalent to that of open surgery, with high levels of patient satisfaction. On the other hand, minimally invasive cardiac surgery using the da Vinci Surgical System has not been approved in Japan except for internal mammary artery harvesting. A Japanese clinical trial of da Vinci surgery for mitral valve repair and atrial septal defect closure has been completed and approval is awaited. Although da Vinci surgery is technically demanding, this less-invasive technique may provide another choice for patients in the near future. PMID:26630738

  10. Searching for the Origin through Central Nervous System: A Review and Thought which Related to Microgravity, Evolution, Big Bang Theory and Universes, Soul and Brainwaves, Greater Limbic System and Seat of the Soul

    PubMed Central

    IDRIS, Zamzuri

    2014-01-01

    Cerebrospinal fluid (CSF) serves buoyancy. The buoyancy thought to play crucial role in many aspects of the central nervous system (CNS). Weightlessness is produced mainly by the CSF. This manuscript is purposely made to discuss its significance which thought contributing towards an ideal environment for the CNS to develop and function normally. The idea of microgravity environment for the CNS is supported not only by the weightlessness concept of the brain, but also the noted anatomical position of the CNS. The CNS is positioned in bowing position (at main cephalic flexure) which is nearly similar to an astronaut in a microgravity chamber, fetus in the amniotic fluid at early gestation, and animals and plants in the ocean or on the land. Therefore, this microgravity position can bring us closer to the concept of origin. The hypothesis on ‘the origin’ based on the microgravity were explored and their similarities were identified including the brainwaves and soul. Subsequently a review on soul was made. Interestingly, an idea from Leonardo da Vinci seems in agreement with the notion of seat of the soul at the greater limbic system which has a distinctive feature of “from God back to God”. PMID:25977615

  11. Searching for the Origin through Central Nervous System: A Review and Thought which Related to Microgravity, Evolution, Big Bang Theory and Universes, Soul and Brainwaves, Greater Limbic System and Seat of the Soul.

    PubMed

    Idris, Zamzuri

    2014-07-01

    Cerebrospinal fluid (CSF) serves buoyancy. The buoyancy thought to play crucial role in many aspects of the central nervous system (CNS). Weightlessness is produced mainly by the CSF. This manuscript is purposely made to discuss its significance which thought contributing towards an ideal environment for the CNS to develop and function normally. The idea of microgravity environment for the CNS is supported not only by the weightlessness concept of the brain, but also the noted anatomical position of the CNS. The CNS is positioned in bowing position (at main cephalic flexure) which is nearly similar to an astronaut in a microgravity chamber, fetus in the amniotic fluid at early gestation, and animals and plants in the ocean or on the land. Therefore, this microgravity position can bring us closer to the concept of origin. The hypothesis on 'the origin' based on the microgravity were explored and their similarities were identified including the brainwaves and soul. Subsequently a review on soul was made. Interestingly, an idea from Leonardo da Vinci seems in agreement with the notion of seat of the soul at the greater limbic system which has a distinctive feature of "from God back to God". PMID:25977615

  12. D-A and D-2 dopamine receptor function in the rabbit retina: a model for the central nervous system

    SciTech Connect

    Hensler, J.G.

    1987-01-01

    Studies were done investigating the effect of the synaptic concentration of the transmitter DA, modified by changes in the frequency of electrical field stimulation and by the DA uptake inhibitor nomifensine, on the modulation of /sup 3/H-DA release by D-2 DA autoreceptors and by melatonin receptor sites. At lower synaptic concentrations of the transmitter dopamine, D-2 DA receptor agonists were more potent, while antagonists were more potent when the synaptic concentration of transmitter was higher. The potency of melatonin to inhibit DA release was not altered by the frequency of field stimulation of by frequency-dependent changes in the synaptic concentration of the transmitter.

  13. [The "myologie dynamique" by Girolamo Fabrizi da Aquapendente in the scientific language in the Renaissance age (XVI-XVII)].

    PubMed

    Stroppiana, L

    1989-01-01

    Beginning from the XV century, mechanical materialism underwent an evolution in "biological mechanics" within the scientific doctrine. Among the greatest exponents of this new current there were two Italian men, Leonardo da Vinci (1452-1519) and Girolamo da Acquapendente (1533-1619). By the trend given by Leonardo, the myology, instead of being a static science, took a dynamic meaning and valence. Later, Fabrizi resumed and investigated the subject above all in its less known expression, elaborating an original theory. With Acquapendente, the anatomy lost its merely descriptive pecularity and evolved in analysis of the structure in connection with the function. Moreover, he opposed the syllogism against the mechanic language and the mathematical formulation. A new scientific way will be afterwards characterized by Galileo Galilei in the field of the physics and by Giovanni Alfonso Borrelli in the biology. PMID:11640090

  14. Area Servizi Bibliotecari di Ateneo Modulo di versamento per il Servizio ILL

    E-print Network

    : Politecnico di Milano Intestato a: Politecnico di Milano Piazza Leonardo da Vinci, 32 ­20133 Milano Eseguito : Prestito ILL nr. Timbro avvenuto pagamento Banca Piazza Leonardo da Vinci, 32 ­20133 Milano Eseguito da

  15. Decentralized Self-balancing Systems Soumya Banerjee, Kai Da Zhao, Wenjing Rao

    E-print Network

    Rao, Wenjing

    [1], thus leading to higher parallelism in future systems. However, compared to current defect rates of 10-7 to 10-9 , defect rates are projected to be as high as 10-1 [2]­ [4]. This is due to the loss increased intercon- nect delay, owing to the increased parasitic resistance and capacitance. This, together

  16. A New Version of Minerva for Organizing Archeological Museums

    E-print Network

    Amigoni, Francesco

    Schiaffonati 1 Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy amigoni@elet.polimi.it 2 Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy schiaffo@elet.polimi.it Abstract

  17. Learning Objects and Tests Mirko Cesarini

    E-print Network

    Monga, Mattia

    Piazza Leonardo da Vinci, 32 I 20133 Milano, Italy cesarini@elet.polimi.it Paolo Mazzoni Politecnico di Milano Dip. Elettronica e Informazione Piazza Leonardo da Vinci, 32 I 20133 Milano, Italy mazzoni

  18. It is the light of enlightenment that Caravaggio shows appearing from the right with Jesus,

    E-print Network

    Falge, Eva

    for painters. Here, they were able to study masterpieces from antiqui- ty through to those by Leonardo da Vinci of a develop- ment in art history, as with the advent of the work of Leonardo da Vinci ­ 100 and ­ especially

  19. On the Verification and Computation of Strong Nash Equilibrium

    E-print Network

    Piazza Leonardo da Vinci 32 Milano, Italy ngatti@elet.polimi.it Marco Rocco Politecnico di Milano Piazza Leonardo da Vinci 32 Milano, Italy mrocco@elet.polimi.it Tuomas Sandholm Carnegie Mellon Computer Science

  20. BANDO 2/2011 Procedura comparativa per l'affidamento di un incarico di lavoro autonomo con contratto di

    E-print Network

    Di Pillo, Gianni

    /IT/489 ­ finanziato nell'ambito del Programma settoriale Leonardo da Vinci; vista la delibera del programma settoriale Leonardo da Vinci e a progetti incentrati su tematiche strettamente connesse al tema di

  1. Noname manuscript No. (will be inserted by the editor)

    E-print Network

    Cugola, Gianpaolo

    Dipartimento di Elettronica e Informazione (DEI), Politecnico di Milano, Piazza Leonardo Da Vinci, 32 - 20133 (DEI), Politecnico di Milano, Piazza Leonardo Da Vinci, 32 - 20133 Milan, Italy E-mail: margara

  2. AN UNSUPERVISED CLUSTERING APPROACH FOR LEUKAEMIA CLASSIFICATION BASED ON DNA MICRO-ARRAYS DATA

    E-print Network

    Garatti, Simone

    Informazione - Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milano, Italia. {bittanti - Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milano, Italia. Abstract: DNA micro-arrays provide

  3. Two-Particle Bosonic-Fermionic Quantum Walk via Integrated Photonics Linda Sansoni,1

    E-print Network

    Roma "La Sapienza", Università di

    -CNR), Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy 5 Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy (Received 26 October 2011; published 5 January 2012

  4. December 23, 2005 13:30 WSPC/INSTRUCTION FILE "Paper IJAIT" THE MULTIAGENT TECHNOLOGY AND PARADIGM

    E-print Network

    Amigoni, Francesco

    Milano Piazza Leonardo da Vinci 32, 20133 Milano, Italy amigoni@elet.polimi.it VIOLA SCHIAFFONATI Dipartimento di Elettronica e Informazione, Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milano

  5. Politecnico di Milano Area Risorse Umane e Organizzazione

    E-print Network

    Politecnico di Milano Area Risorse Umane e Organizzazione Piazza Leonardo da Vinci, 32 20133 Milano GASTI CARLA carla.gasti@polimi.it Tel.2212 Piazza Leonardo da Vinci, Building 2, First floor. Procedure

  6. Cinzia Cappiello, Fabio A. Schreiber Experiments and analysis of quality and

    E-print Network

    Schreiber, Fabio A.

    Informazione Piazza Leonardo da Vinci 32 20133 Milano cappiell@elet.polimi.it Fabio A. Schreiber Politecnico di Milano, Dipartimento di Elettronica e Informazione Piazza Leonardo da Vinci 32 20133 Milano schreibe

  7. Model Checking UML Specifications of Real Time Software Vieri Del Bianco

    E-print Network

    Lavazza, Luigi

    .zza Leonardo Da Vinci, 32 20133 Milano, Italy delbianc@elet.polimi.it Luigi Lavazza CEFRIEL Politecnico di Milano P.zza Leonardo Da Vinci, 32 20133 Milano, Italy lavazza@elet.polimi.it Marco Mauri CEFRIEL Via

  8. TO BE PUBLISHED: IJCV, , 1--26 () fl Kluwer Academic Publishers, Boston. Manufactured in The Netherlands.

    E-print Network

    since at least the time of Leonardo da Vinci that encoded within a pair of stereo images is information detailing the scene geometry (Leonardo da Vinci 1989). The animal brain has known this for millions of years

  9. Clip and Save.

    ERIC Educational Resources Information Center

    Hubbard, Guy

    2003-01-01

    Focuses on the facial expression in the "Mona Lisa" by Leonardo da Vinci. Offers background information on da Vinci as well as learning activities for students. Includes a reproduction of the "Mona Lisa" and information about the painting. (CMK)

  10. Algorithms for Storytelling Deept Kumar

    E-print Network

    Ramakrishnan, Naren

    Christianity's Hidden Goddess Rick Steves' London Holy Blood Holy Grail Da Vinci Code Codebreakers Y G R M B ways of defining the singleton set {`The Da Vinci Code'}. The basic premise of redescription mining

  11. Generation of a multi-band spectrum using a D/A converter for an RF-knockout system

    NASA Astrophysics Data System (ADS)

    Shinkai, Akio; Ishikawa, Soichiro; Nakanishi, Tetsuya

    2015-01-01

    A method of generating a multi-band spectrum is proposed using a digital-to-analog (D/A) converter. The multi-band spectrum is useful for the slow-beam-extraction from a synchrotron using the method of radio frequency (RF)-knockout. Data for the spectrum are calculated in advance to be saved in the memory of a D/A converter, and are output synchronized with external clocks. An experiment showed that a multi-band spectrum of 10 bands could be generated with a total bandwidth of about 16.4 MHz and each bandwidth less than 45 kHz. Beam simulation with this method showed that an RF signal from a D/A converter could be effectively used for the control of uniform spill structure.

  12. Identification of octenal-related dA and dC adducts formed by reactions with a hemin-?-6-fat peroxidation model system.

    PubMed

    Kawai, Kazuaki; Kawasaki, Yuya; Kubota, Yumiko; Kimura, Tomoyuki; Sawa, Ryuichi; Matsuda, Tomonari; Kasai, Hiroshi

    2013-10-21

    Deoxynucleosides were reacted in a lipid peroxidation model system, emulsified hemin-ethyl linoleate, and the adducts thus produced were analyzed by HPLC. Substantial amounts of stable adducts were detected in the dA- and dC-reaction mixtures. The structures of the major dA and dC adducts, other than the known 4-oxo-2-nonenal adducts, were determined to be etheno-type adducts, with a C? side chain bearing an ?-hydroxyl-group. These results suggested that the substance involved in adduct formation is 2,3-epoxyoctanal. This compound showed mutagenicity in Salmonella strains TA 100 and TA 104 without the S-9 mix. In addition, based on the structure of a minor dC adduct, another possibly involved mutagen, 4-oxo-2-octenal, was proposed. These mutagens may be formed during storage and cooking of food, or during digestion, and may be involved in human cancers. PMID:24032558

  13. User Linguistic Model Adaptivity for Prediction in AAC Message Composition

    E-print Network

    Gatti, Nicola

    Elettronica e Informazione, Politecnico di Milano. Piazza Leonardo da Vinci 32, Milano, I-20133 ngatti@elet.polimi.it Matteo Matteucci Dip. di Elettronica e Informazione, Politecnico di Milano. Piazza Leonardo da Vinci 32 di Milano. Piazza Leonardo da Vinci 32, Milano, I-20133 sbattella@elet.polimi.it Abstract Efficient

  14. Game Theoretic Analysis of Wireless Access Network Selection: Models, Inefficiency Bounds, and Algorithms

    E-print Network

    Gatti, Nicola

    , and Algorithms Matteo Cesana DEI, Politecnico di Milano piazza Leonardo da Vinci 32 Milano, Italy cesana@elet.polimi.it Nicola Gatti DEI, Politecnico di Milano piazza Leonardo da Vinci 32 Milano, Italy ngatti@elet.polimi.it Ilaria Malanchini DEI, Politecnico di Milano piazza Leonardo da Vinci 32 Milano, Italy malanchini

  15. POLITECNICO DI MILANO AREATECNICOEDILIZIADirigentearch.RiccardoLicari

    E-print Network

    'EDILIZIE GENNAIO 2015 #12;RESIDENZA UNIVERSITARIA "A. LOOS" - LECCO SEDE CITTÀ STUDI, PIAZZA LEONARDO DA VINCI 32.I.I.A.R. ­ LOTTO 1 SEDE MILANO CITTÀ STUDI, PIAZZA LEONARDO DA VINCI 32, EDIFICIO CREMLINO, REALIZZAZIONE AULE CAMPUS LEONARDO SEDE MILANO CITTÀ STUDI, PIAZZA LEONARDO DA VINCI, EDIFICIO 7 EX ELETTROTECNICA

  16. Civil. Eng. and Env. Syst., Vol. 00, pp. 1 8 # 2000 OPA (Overseas Publishers Association) N.V. Reprints available directly from the publisher Published by license under

    E-print Network

    Sniadecki, Nathan J.

    only the Gordon and Breach Science Publishers imprint. Printed in Malaysia. LEONARDO DA VINCI'S TENSILE) In one of Leonardo Da Vinci's notebooks, an experiment is described where strengths in tension to be uncovered and understood and Leonardo Da Vinci's work showed great insight in this ®eld for its time (Duhem

  17. Reinforcement Learning in Extensive Form Games with Incomplete Information: the Bargaining Case Study

    E-print Network

    Gatti, Nicola

    Study Alessandro Lazaric Politecnico di Milano, DEI piazza Leonardo da Vinci 32, I-20133 Milan, Italy lazaric@elet.polimi.it Enrique Munoz de Cote Politecnico di Milano, DEI piazza Leonardo da Vinci 32, I-20133 Milan, Italy munoz@elet.polimi.it Nicola Gatti Politecnico di Milano, DEI piazza Leonardo da Vinci

  18. Memorias del Segundo Simposio Internacional Sobre Polticas, Planificacin y Economa de los Programas de Proteccin Contra Incendios Forestales: Una Visin Global Plan de Gestin de Incendios a Escala

    E-print Network

    Profesor plenario, Dep. Agroselviter, Universidad de Turin, Via Leonardo da Vinci 44, 10095 Grugliasco (TO de Turin, Via Leonardo da Vinci 44, 10095 Grugliasco (TO) Italia. Correo electrónico: elisa.guglielmet@unito.it. 4 Doctor en Ciencias forestales, Dep. Agroselviter, Universidad de Turin, Via Leonardo da Vinci 44

  19. A Multiagent Interaction Paradigm for Physiological Process Control

    E-print Network

    Amigoni, Francesco

    di Elettronica e Informazione; Politecnico di Milano; Piazza Leonardo da Vinci, 32; I-20133 Milano; Politecnico di Milano; Piazza Leonardo da Vinci, 32; I-20133 Milano (MI); Italy ngatti@elet.polimi.it Marco Somalvico Dipartimento di Elettronica e Informazione; Politecnico di Milano; Piazza Leonardo da Vinci, 32; I

  20. Computing a SelfConfirming Equilibrium in TwoPlayer ExtensiveForm Games

    E-print Network

    Gatti, Nicola

    di Milano Piazza Leonardo da Vinci 32 Milano, Italy ngatti@elet.polimi.it Fabio Panozzo Politecnico di Milano Piazza Leonardo da Vinci 32 Milano, Italy panozzo@elet.polimi.it Sofia Ceppi Politecnico di Milano Piazza Leonardo da Vinci 32 Milano, Italy ceppi@elet.polimi.it ABSTRACT The Nash equilibrium

  1. Languages based on structural local testability

    E-print Network

    San Pietro, Pierluigi

    , and Pierluigi San Pietro 3 1 Dipartimento di Matematica, Politecnico di Milano P.za Leonardo da Vinci 32, I.za Leonardo da Vinci 32, I--20133 Milano crespi@elet.polimi.it 3 Dipartimento di Elettronica e Informazione, Politecnico di Milano P.za Leonardo da Vinci 32, I--20133 Milano sanpietr@elet.polimi.it Abstract

  2. Applied Soil Ecology 62 (2012) 131141 Contents lists available at SciVerse ScienceDirect

    E-print Network

    Williams, Mark W.

    2012-01-01

    Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy b Institute of Arctic and Alpine Research and Department Centre on Natural Risks in Mountain and Hilly Environments, Via Leonardo da Vinci 44, 10095 Grugliasco.Va.P.R.A. ­ Chimica Agraria e Pedologia ­ Laboratorio Neve e Suoli Alpini, Via Leonardo da Vinci 44, 10095 Grugli

  3. ORORGENES DE LA GEOMETRGENES DE LA GEOMETRA PROYECTIVAA PROYECTIVA Mara Emilia Alonso Departamento de lgebra, UCM

    E-print Network

    Ruiz, Jesús M.

    Edad Media. Por eso no es extraño que tengan especial relevancia nombres como Leonardo da Vinci, Rafael GENIOS, Vol. I (Leonardo da Vinci, Dalí), Vol. II (Rafael), Madrid: Orbis-Fabri 1989. TRATADO DE PINTURA, Leonardo da Vinci, Madrid: Akal 1986. PIERO DE LA FRANCESCA, M. Mangione, en Grandes Estilos de la Pintura

  4. Proceedings of the Second International Symposium on Fire Economics, Planning, and Policy: A Global View Wildland-Urban Interface Analyses for Fire

    E-print Network

    . Agroselviter, University of Turin, Via Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy. email: raffaella.marzano@unito.it. 3 Doctor in Forestry, Dep. Agroselviter, University of Turin, Via Leonardo da Vinci 44, 10095. Agroselviter, University of Turin, Via Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy. email: giovanni

  5. Solving Strategic Bargaining with Arbitrary OneSided Uncertainty

    E-print Network

    Gatti, Nicola

    Politecnico di Milano Piazza Leonardo da Vinci 32 Milano, Italy ceppi@elet.polimi.it Nicola Gatti Politecnico di Milano Piazza Leonardo da Vinci 32 Milano, Italy ngatti@elet.polimi.it Claudio Iuliano Politecnico di Milano Piazza Leonardo da Vinci 32 Milano, Italy iuliano@elet.polimi.it ABSTRACT Bilateral

  6. Erasmus + Programme Erasmus Policy Statement (Overall Strategy)

    E-print Network

    Di Pillo, Gianni

    the Erasmus placement and Leonardo da Vinci programme. For Erasmus placements, the choice of the organization is often made by the Faculties whether for the Leonardo da Vinci we use a centralized approach. The Leonardo da Vinci programme UNIPHARMA-GRADUTES coordinated by Sapienza was shortlisted in 2006

  7. November 3, 2014 Journal of Mathematics and the Arts Leonardov4 To appear in the Journal of Mathematics and the Arts

    E-print Network

    Bigelow, Stephen

    in Leonardo da Vinci's Cartelle of the Accademia Vinciana Jessica Hoya and Kenneth C. Millettb Department of knotting and linking are found in many of the drawings and paintings of Leonardo da Vinci, but nowhere of Leonardo's paintings. Keywords: Leonardo da Vinci; engravings; knotting; linking; geometry; symmetry

  8. 124 Los Alamos Science Number 29 2005 The Turbulence Problem

    E-print Network

    " of the turbulence problem. Robert Ecke Leonardo da Vinci's illustration of the swirling flow of turbulence. (The fluid motion (McComb 1990, Frisch 1995, Lesieur 1997). Leonardo da Vinci (refer to Richter 1970), who to the principal current, the other to the random and reverse motion." Two aspects of da Vinci's observa- tions

  9. Large-Eddy Simulations of Turbulent Flows, from Desktop to Supercomputer

    E-print Network

    Scotti, Alberto

    for many centuries. In 1510, Leonardo da Vinci accompanied a drawing of the vortices shed behind a blunt Leonardo da Vinci's notebooks. (eddies) that govern to a very large extent the transfer of momentum and en and a fluctuating part, as fore-shadowed in da Vinci's observations, and the effect of the turbulent eddies

  10. Humanities Core 1C 15 June 2012

    E-print Network

    Burke, Kieron

    ) where an image of a brief stenciling of Da Vinci's Last Supper scene serves as the backdrop to bright merely as a duplicated black and white photograph Da Vinci's Last Supper with a wash of fluorescent at that moment. By only placing color on the logo and making turning Da Vinci's work into a stencil illustration

  11. Visual Analysis of Conflicting Opinions Chaomei Chen

    E-print Network

    Chen, Chaomei

    University, USA Figure 1: Conflicting reviews of The Da Vinci Code: 1,738 positive (green) and 918 negative,000 Amazon customer reviews of the controversial bestseller The Da Vinci Code, including 1,738 positive domains [1]. Reviews of a controversial bestseller book such as The Da Vinci Code carry the hallmark

  12. 924 NATURE PHYSICS | VOL 7 | DECEMBER 2011 | www.nature.com/naturephysics news & views

    E-print Network

    Loss, Daniel

    to obey a kind of conservation principle from root to leaf. History marks Leonardo da Vinci as having been the subject of some discussion, da Vinci's rule is widely regarded in the world of computer graphics. Eloy has applied a similar idea to the task of understanding da Vinci's observation. Drawing

  13. Recipes from the Secret Book of Artephius San Francisco Bay Area, California

    E-print Network

    Owens, John

    in The Secret Book of Artephius. The famous artist and scholar Leonardo Da Vinci was also in Rome at the time Vinci who, as a true scholar, desired to record them in writing. Such information was not only property of persecution should Da Vinci publish them. In an effort to record the recipes, yet keep them well hidden, Da

  14. EPJ ESoft Matter and Biological Physics

    E-print Network

    Blumenfeld, Rafi

    ­338 (2010) DOI: 10.1140/epje/i2010-10628-9 da Vinci fluids, catch-up dynamics and dense granular flow R 32, 333­338 (2010) THE EUROPEAN PHYSICAL JOURNAL E da Vinci fluids, catch-up dynamics and dense and study a da Vinci fluid, a fluid whose dissipation is dominated by solid friction. We analyse the flow

  15. Laparoskopie der Zukunft Roboter versus

    E-print Network

    Manstein, Dietmar J.

    onkologisch-operativen Behandlung - robotergestützte laparoskopische Chirurgie (Da Vinci) - Matthews CA et al onkologisch-operativen Behandlung - robotergestützte laparoskopische Chirurgie (Da Vinci) - #12;+ 3D-Chirurgie KONTRA ? Frage: Wie kann man ohne da-Vinci® seine Möglichkeiten mit der Laparoskopie verbessern? #12

  16. Granular Matter (2011) 13:241245 DOI 10.1007/s10035-011-0248-5

    E-print Network

    Blumenfeld, Rafi

    2011-01-01

    and growth in Da Vinci fluids Moshe Schwartz · Raphael Blumenfeld Received: 27 September 2010 / Published matter -- a da Vinci fluid. The local properties of the fluid are generically different from ordinary flow regions. Keywords Da Vinci fluid · Dense granular flow · Plug formation · Plug flow · Flow

  17. A Laminar Cortical Model of Stereopsis and 3D Surface Perception

    E-print Network

    Grossberg, Stephen

    A Laminar Cortical Model of Stereopsis and 3D Surface Perception: Closure and da Vinci Stereopsis illusion, stereopsis with polarity-reversed stereograms, and da Vinci stereopsis. It also explains psychophysical data about perceptual closure and variations of da Vinci stereopsis that previous models cannot

  18. Reflections on Post-16 Strategies in European Countries. Interim Report of the Leonardo da Vinci/Multiplier Effect Project III.3.a. Priority 2: Forging Links between Educational Establishments and Enterprises (1997-2000) ID 27009. Working Papers, No. 9.

    ERIC Educational Resources Information Center

    Stenstrom, Marja-Leena, Ed.

    This four-part publication contains 19 papers on educational practices and promises for post-16 education in European countries. Part I, the introduction, contains these three papers: "Sharpening Post-16 Education Strategies: Building on the Results of the Previous Projects" (Johanna Lasonen); "'Parity of Esteem' and 'Integrated…

  19. Extended indications for robotic surgery for posterior mediastinal tumors.

    PubMed

    Kajiwara, Naohiro; Kakihana, Masatoshi; Usuda, Jitsuo; Ohira, Tatsuo; Kawate, Norihiko; Ikeda, Norihiko

    2012-06-01

    Previously, we evaluated use of the da Vinci Surgical System for anterior and middle mediastinal tumors in clinical cases, focusing on feasibility, safety, and appropriate settings. In this study, we evaluated extending the indications for robotic surgical treatment of posterior mediastinal tumors to include those located adjacent to the upper vertebrae or aorta. Three patients with mediastinal tumors located immediately adjacent to the vertebrae or aorta, underwent resection with the da Vinci Surgical System. All resected tumors were benign histologically. Robotic surgery enabled treatment of tumors located in the posterior mediastinum, which are very difficult to reach, making resection with the conventional video-assisted thoracoscopic surgery technique extremely difficult. All procedures were performed safely, smoothly, and extremely precisely. Crucial to the success of these operations were the appropriate placement and angle of the special da Vinci surgical ports in relation to the target and the patient's position, which varied according to the tumor location. PMID:22718720

  20. Transoral robotic surgery of the central skull base: preclinical investigations.

    PubMed

    Fernandez-Nogueras, F J J; Katati, M J; Arraez Sanchez, M A; Molina Martinez, M; Sanchez Carrion, M

    2014-06-01

    In this study we explored possible applications of the da Vinci system in approaching the skull base at optic chiasm level on two cryopreserved cadavers, using an entirely transoral robotic technique (TORS). We used a standard 12 mm endoscopy and 8 mm terminals. Bone drilling was performed manually. The da Vinci system is equipped with very good illumination and 3D viewing, thus providing excellent vision and great maneuverability even in the less accessible areas of the skull. Our experience demonstrates that an entirely transoral skull base robotic approach to this complex anatomical region has many advantages as compared to traditional techniques. PMID:24077869

  1. Innovative Incontinence Surgery: The Male Sling

    MedlinePLUS Videos and Cool Tools

    ... it’s done open, laparoscopically, or with the daVinci robot prostatectomy, the instance of stress incontinence ranges from ... Vinci operation. Even though we’re using the robot for the prostatectomy, inside we’re doing the ...

  2. Moving Along: In biomechanics, rehabilitation engineering, and movement analysis, Italian researchers are making great strides.

    PubMed

    Gugliellmelli, Eugenio; Micera, Silvestro; Migliavacca, Francesco; Pedotti, Antonio

    2015-01-01

    In Italy, biomechanics research and the analysis of human and animal movement have had a very long history, beginning with the exceptional pioneering work of Leonardo da Vinci. In 1489, da Vinci began investigating human anatomy, including an examination of human tendons, muscles, and the skeletal system. He continued this line of inquiry later in life, identifying what he called "the four powers--movement, weight, force, and percussion"--and how he thought they worked in the human body. His approach, by the way, was very modern--analyzing nature through anatomy, developing models for interpretation, and transferring this knowledge to bio-inspired machines. PMID:26186054

  3. Seroprevalence and risk factors of toxoplasmosis in cattle from extensive and semi-intensive rearing systems at Zona da Mata, Minas Gerais state, Southern Brazil

    PubMed Central

    2013-01-01

    Background Concerning the infection of humans by T. gondii, limited efforts have been directed to the elucidation of the role of horizontal transmission between hosts. One of the main routes of transmission from animals to humans occurs through the ingestion of raw or insufficiently cooked meat. However, even though the detection of T. gondii in meat constitutes an important short-term measure, control strategies can only be accomplished by a deeper understanding of the epidemiology of toxoplasmosis. The present study aimed to investigate the seroprevalence of toxoplasmosis in cattle from Zona da Mata, Minas Gerais, Brazil, and to identify associated risk factors, through an epidemiological investigation. Methods The animals studied (Bos indicus, breed Nelore or Gir) were reared in the Zona da Mata micro-region and killed at a commercial slaughterhouse at Juiz de Fora, Minas Gerais state. The animals came from 53 cattle farms with extensive (predominantly pasture feeding management) or semi-intensive (food management based on grazing, salt mineral and feed supplementation) rearing systems. Blood samples were collected from 1200 animals, and assigned to Indirect Fluorescent Antibody Test. Results When analyzing IgG anti-T.gondii we found an overall seroprevalence of 2.68%. In Brazil prevalences vary from 1.03% to 60%. Although in the present study, the seroprevalence per animal is considered low compared to those observed in other studies, we found out that of the 53 farms analyzed, 17 (34.69%) had one or more positive cattle. It is a considerable percentage, suggesting that the infection is well distributed through the Zona da Mata region. The results of the epidemiological investigation showed that the main risk factors of Toxoplasma gondii infection are related to animal management and to the definive host. There was a relationship between the number of seropositive cattle and the presence and number of resident cats, presence and number of stray cats, presence of cats walking freely, rat control by using cats and feed storage. Conclusion These results may contribute to the development of preventive strategies in Brazil and other developing countries were extensive and semi-intensive cattle rearing systems are very widespread and the efforts to control this important zoonotic disease have attained little success. PMID:23800302

  4. Paraná Magmatic Province Tristan da Cunha plume system: fixed versus mobile plume, petrogenetic considerations and alternative heat sources

    NASA Astrophysics Data System (ADS)

    Ernesto, M.; Marques, L. S.; Piccirillo, E. M.; Molina, E. C.; Ussami, N.; Comin-Chiaramonti, P.; Bellieni, G.

    2002-11-01

    Paleomagnetic reconstructions demonstrate that the Tristan da Cunha (TC) plume, which is usually related to the genesis of the high- and low-Ti flood tholeiites of the Paraná Magmatic Province (PMP), was located ˜1000 km south of the Paraná Province at the time of the magma eruptions. Assuming plume mobility, and considering the low-velocity zone identified in the northern portion of the PMP as the TC 'fossil' plume (˜20° from the present TC position), the plume migrated southward from 133-132 (main volcanic phase) to 80 Ma at a rate of about 40 mm/yr. From 80 Ma to Present the plume remained virtually fixed, leaving a track (Walvis Ridge) compatible with the African plate movement. However, geochemical and Sr-Nd-Pb isotopic data do not support that the tholeiites from Walvis Ridge, Rio Grande Rise and Paraná can result from mixing dominated by the TC plume and mid-ocean ridge basalt components. The similarity among the high-Ti basalts from Rio Grande Rise, part of Walvis Ridge (525A) and the Paraná Province suggests that delaminated subcontinental lithospheric mantle must be considered in their genesis. Regional thermal anomalies in deep mantle mapped by geoid and seismic tomography data offer an alternative non-plume-related heat source for the generation of intracontinental magmatic provinces.

  5. Proceedings of the IEEE International Conference on Mechatronics & Automation

    E-print Network

    Cavusoglu, Cenk

    for actuating the end effector of a robot performing minimally invasive surgery (MIS). This actuator is designed invasive surgery, shape memory alloy actuator. I. INTRODUCTION Medical robotics is a new and promising that are currently in use for cardiac surgery: the da Vinci Robotic System (Intuitive Surgical, Inc., Sunnyvale, CA

  6. Space and time evolution of the interaction system between Tristan da Cunha hotspot and South Mid-Atlantic Ridge.

    NASA Astrophysics Data System (ADS)

    Pessanha, I.; Maia, M.; Mello, S.

    2009-04-01

    In this work we have studied the space and time evolution of the Tristan hotspot and south Mid-Atlantic Ridge interaction system. The Tristan hotspot and its associated topographical features (Walvis Ridge, Rio Grande Rise) are one of the most significant features of the south Atlantic ocean. However, this system is not as well studied as the systems in the North Atlantic (Azores and Iceland). Data compilation of the available surveys from the National Geophysical Data Center (NGDC) and satellite-derived bathymetry were treated to generate a Digital Elevation Model (DEM) for the entire south Atlantic ocean . Satellite-derived gravity data and sediment thickness data were used to calculate the mantle Bouguer anomaly (MBA) and digital isochrons of the ocean floor were used to calculate the residual mantle Bouguer anomaly (RMBA) and residual bathymetry. The relations between gravity anomalies and residual bathymetry variations along the Mid-Atlantic Ridge axis and along the isochrons were determinate and used as indications in terms of lateral density variations in the mantle, and this of space and time variations of the hotspot influence. A data base compilation of the available isotope ratios and trace-element data were interpreted in terms of contamination of the mantle composition by a plume term and both data sets are used to constrain the ridge-hotspot temporal evolution. A plate tectonic reconstruction, yields a framework for a model of evolution of the interaction system the Tristan hotspot and the Mid-Atlantic Ridge accounting for all the geophysical and geochemical observations.

  7. MONITORAMENTO DA COBERTURA FLORESTAL DA AMAZNIA

    E-print Network

    INPE SOBRE O RELATÓRIO: "INSPEÇÃO DE PONTOS E ÁREAS DO DETER" DA SECRETARIA DE ESTADO DO MEIO AMBIENTE 2008, técnicos do Instituto Nacional de Pesquisas Espaciais (INPE) e da Secretaria de Estado do Meio

  8. The effects of acute pharmacological stimulation of the 5-HT, NA and DA systems on the cognitive judgement bias of rats in the ambiguous-cue interpretation paradigm.

    PubMed

    Rygula, Rafal; Papciak, Justyna; Popik, Piotr

    2014-07-01

    In the present study, we investigated the effects of acute pharmacological stimulation of the serotonergic (5-HT), noradrenergic (NA) and dopaminergic (DA) systems on the valence of cognitive judgement bias of rats in the ambiguous-cue interpretation (ACI) paradigm. To accomplish this goal, after initial behavioural training, different groups of rats received single injections of citalopram, desipramine or d-amphetamine and were subsequently tested with the ACI paradigm. Each drug was administered in 3 doses using a fully randomised Latin square design. Citalopram at the dose of 1mg/kg significantly biased animals towards positive interpretation of the ambiguous cue, while at higher doses (5 and 10mg/kg), the animals interpreted the ambiguous cue more negatively. Desipramine at all 3 tested doses (1, 2 and 5mg/kg) significantly biased animals towards negative interpretation of the ambiguous cue, while d-amphetamine at the dose of 1mg/kg induced positive bias, having no effects at lower doses (0.1 and 0.5mg/kg). Our results indicate that cognitive bias in rats can be influenced by acute pharmacological intervention. PMID:24503278

  9. Multi-Band UWB Sensor Networks for high density sub-surface diagnostic

    E-print Network

    Savazzi, Stefano

    and Network Set-Up Delay I. L'Abbate D.E.I., Politecnico di Milano P.zza L. da Vinci, 32 I-20133 Milano. Savazzi D.E.I., Politecnico di Milano P.zza L. da Vinci, 32 I-20133 Milano, IT savazzi@elet.polimi.it L.E.I., Politecnico di Milano P.zza L. da Vinci, 32 I-20133 Milano, IT spagnoli@elet.polimi.it Matti Latva-aho CWC P

  10. 40 CFR 60.48Da - Compliance provisions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...Csg ). The continuous flow monitoring system specified in § 60.49Da...If the option to use the flow monitoring system in § 60.49Da(m) is selected...recording data from the continuous flow monitoring system specified in §...

  11. 40 CFR 60.48Da - Compliance provisions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...Csg ). The continuous flow monitoring system specified in § 60.49Da...If the option to use the flow monitoring system in § 60.49Da(m) is selected...recording data from the continuous flow monitoring system specified in §...

  12. 40 CFR 60.48Da - Compliance provisions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...Csg ). The continuous flow monitoring system specified in § 60.49Da...If the option to use the flow monitoring system in § 60.49Da(m) is selected...recording data from the continuous flow monitoring system specified in §...

  13. Praktika welt-offen 2005 Mo. 14.11.2005, 10.00-18.00 Uhr

    E-print Network

    Kaus, Boris

    DA VINCI (Leonardo Kontaktstelle Hochschule-Wirtschaft Rheinland-Pfalz) MLP (Finanzdienstleistungen Experience) Interswop (Vermittlung von Auslandsaufenthalten und Praktika, Sprach- u. Bildungsreisen) LEONARDO

  14. Proceedings of the Second International Symposium on Fire Economics, Planning, and Policy: A Global View Fire Management Plan at Regional Scale in

    E-print Network

    . Agroselviter, University of Turin, Via Leonardo da Vinci 44, 10095 Grugliasco (TO) Italy. email: elisa.guglielmet@unito.it. Doctor in Forestry, Dep. Agroselviter, University of Turin, Via Leonardo da Vinci 44, 10095 Grugliasco­22 April 2004, Cordoba, Spain. Full Professor, Dept. Agroselviter, University of Turin, Via Leonardo da

  15. Dealing with Changes in Service Orchestrations Leandro Sales Pinto

    E-print Network

    Cugola, Gianpaolo

    Dipartimento di Elettronica e Informazione - DEI Piazza Leonardo Da Vinci, 32 Milano, Italy pinto Elettronica e Informazione - DEI Piazza Leonardo Da Vinci, 32 Milano, Italy ghezzi@elet.polimi.it ABSTRACT@elet.polimi.it Gianpaolo Cugola Politecnico di Milano Dipartimento di Elettronica e Informazione - DEI Piazza Leonardo Da

  16. This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication. > No. TNSRE-2008-00207) < 1

    E-print Network

    Leonardo da Vinci, 32, 20133, Milano, Italy (e-mail: mariagabriella.signorini@biomed.polimi.it). S. M, Politecnico di Milano, piazza Leonardo da Vinci, 32, 20133, Milano, Italy (e-mail: sergio, 2008. F. Esposti is with the Dipartimento di Bioingegneria, Politecnico di Milano, piazza Leonardo da

  17. Verbale del Consiglio di Amministrazione del 20/12/2011 Strutt. proponente: TecnicoEdilizia

    E-print Network

    _12, Sede Milano Città Studi, Piazza Leonardo da Vinci, 32, Ristrutturazione spazi aula F.1.1; - Progressivo Studi, Piazza Leonardo da Vinci, 32, Restauro facciate) posticipata ad anni successivi. 4. l 3 (4 nello schema di settembre), ID progetto 2006_12, Sede Milano Città Studi, Piazza Leonardo da

  18. Comprehensive Enzymatic Analysis of the Cellulolytic System in Digestive Fluid of the Sea Hare Aplysia kurodai. Efficient Glucose Release from Sea Lettuce by Synergistic Action of 45 kDa Endoglucanase and 210 kDa ß-Glucosidase

    PubMed Central

    Tsuji, Akihiko; Tominaga, Keiko; Nishiyama, Nami; Yuasa, Keizo

    2013-01-01

    Although many endo-ß-1,4-glucanases have been isolated in invertebrates, their cellulolytic systems are not fully understood. In particular, gastropod feeding on seaweed is considered an excellent model system for production of bioethanol and renewable bioenergy from third-generation feedstocks (microalgae and seaweeds). In this study, enzymes involved in the conversion of cellulose and other polysaccharides to glucose in digestive fluids of the sea hare (Aplysia kurodai) were screened and characterized to determine how the sea hare obtains glucose from sea lettuce (Ulva pertusa). Four endo-ß-1,4-glucanases (21K, 45K, 65K, and 95K cellulase) and 2 ß-glucosidases (110K and 210K) were purified to a homogeneous state, and the synergistic action of these enzymes during cellulose digestion was analyzed. All cellulases exhibited cellulase and lichenase activities and showed distinct cleavage specificities against cellooligosaccharides and filter paper. Filter paper was digested to cellobiose, cellotriose, and cellotetraose by 21K cellulase, whereas 45K and 65K enzymes hydrolyzed the filter paper to cellobiose and glucose. 210K ß-glucosidase showed unique substrate specificity against synthetic and natural substrates, and 4-methylumbelliferyl (4MU)-ß-glucoside, 4MU–ß-galactoside, cello-oligosaccharides, laminarin, and lichenan were suitable substrates. Furthermore, 210K ß-glucosidase possesses lactase activity. Although ß-glucosidase and cellulase are necessary for efficient hydrolysis of carboxymethylcellulose to glucose, laminarin is hydrolyzed to glucose only by 210K ß-glucosidase. Kinetic analysis of the inhibition of 210K ß-glucosidase by D-glucono-1,5-lactone suggested the presence of 2 active sites similar to those of mammalian lactase-phlorizin hydrolase. Saccharification of sea lettuce was considerably stimulated by the synergistic action of 45K cellulase and 210K ß-glucosidase. Our results indicate that 45K cellulase and 210K ß-glucosidase are the core components of the sea hare digestive system for efficient production of glucose from sea lettuce. These findings contribute important new insights into the development of biofuel processing biotechnologies from seaweed. PMID:23762366

  19. The 60-kDa heat shock protein (HSP60) of the sea anemone Anemonia viridis: a potential early warning system for environmental changes.

    PubMed

    Choresh, O; Ron, E; Loya, Y

    2001-09-01

    Expression of heat shock proteins (HSPs) is often correlated with adaptation to environmental stress. We examined the role of HSP60 (60 kDa) in acclimatization to thermal stress in the sea anemone Anemonia viridis. Using monoclonal antibodies, we identified HSP60 in sea anemones for the first time, and showed that its expression varied with changes in seawater temperature (SWT). Anemonia viridis displayed high levels of HSP60 when extreme temperatures prevailed in stressful habitats such as tidal pools. Specimens sampled from different temperature layers in the same tidal pool differed in their levels of HSP60. Specimens from subtidal zones exhibited a seasonal pattern of expression of HSP60, according to the seasonal SWT. The level of HSP60 was significantly higher in the summer (SWT, 31 degrees C) than in other seasons throughout the year. This study suggests the use of HSP60 expression as a tool for stress detection in marine invertebrates. PMID:14961344

  20. [Robotics-assisted laparoscopic colorectal resection].

    PubMed

    Mann, B; Virakas, G; Blase, M; Soenmez, M

    2013-08-01

    The value of laparoscopic surgery for rectal cancer is still controversially discussed. Robotics offers the opportunity to leave the limitations of conventional laparoscopy behind us. The three-dimensional visualization and the superior dexterity by wristed instruments should be particularly helpful in complex laparoscopic procedures in confined spaces such as the small pelvis. Colorectal resections using the Da Vinci® system are well established and becoming increasingly more standard procedures. Nerve-sparing total mesorectal excision in patients with rectal cancer, total mesocolic excision in patients with right-sided colon cancer and rectopexy in patients with pelvic floor insufficiency are the most promising indications. The prospective randomized ROLARR study has been evaluating the application of the Da Vinci® system in laparoscopic rectal cancer surgery since 2011. Besides the currently available clinical data the perioperative and intraoperative logistics and strategy will be presented in detail. PMID:23942962

  1. Robot assisted radical prostatectomy: how I do it. Part II: Surgical technique.

    PubMed

    Valdivieso, Roger F; Hueber, Pierre-Alain; Zorn, Kevin C

    2013-12-01

    The introduction of the "da Vinci Robotic Surgical System" (Intuitive Surgical, Sunnyvale, CA, USA) has been an important step towards a minimally invasive approach to radical prostatectomy. Technologic peculiarities, such as three-dimensional vision, wristed instrumentation with seven degrees of freedom of motion, lack of tremor, a 10x-magnification and a comfortable seated position for the surgeon has added value to the procedure for the surgeon and the patient. In this article, we describe the 9 step surgical technique for robot assisted radical prostatectomy (RARP) that is currently used in our institution (University of Montreal Hospital Center (CHUM) - Hopital St-Luc). We use the four-arm da Vinci Surgical System. Our experience with RARP is now over 250 cases with the senior surgeon having performed over 1200 RARPs and we have continually refined our technique to improve patient outcomes. PMID:24331353

  2. BANDO 5 BORSE DI STUDIO PROGRAMMA LEONARDO MOBILITA' PLM VISTA la Decisione n. 1720/2006/CE del Parlamento Europeo e del Consiglio del 15

    E-print Network

    Pettenella, Davide

    programma LLP-Leonardo da Vinci e inerente alla mobilità di laureati per tirocini all'estero; VISTI gli programma LLP Leonardo da Vinci (People in the Labour Market) ed approvato dall'Unione Europea tramite l1 BANDO 5 BORSE DI STUDIO ­ PROGRAMMA LEONARDO MOBILITA' PLM VISTA la Decisione n. 1720/2006/CE del

  3. Designing Distributed Applications with Mobile Code Paradigms

    E-print Network

    Picco, Gian Pietro

    Milano Piazza Leonardo da Vinci, 32 20133 Milano, Italy +39­2­2399­3638 carzaniga@elet.polimi.it Gian@athena.polito.it Giovanni Vigna Politecnico di Milano Piazza Leonardo da Vinci, 32 20133 Milano, Italy +39­2­2399­3666 vigna

  4. Automated Testing of Classes University of Illinois at Chicago

    E-print Network

    Orso, Alessandro "Alex"

    Politecnico di Milano DEI P.zza Leonardo Da Vinci, 32 I-20133 Milano, Italy Phone: +39-02-2399-3638 orso@elet.polimi.it Mauro Pezze Politecnico di Milano DEI P.zza Leonardo Da Vinci, 32 I-20133 Milano, Italy Phone: +39

  5. Wellcome Collection, A World First, Opened By World-Famous Scientist

    E-print Network

    Rambaut, Andrew

    to the futuristic. Examples include work by artists such as Antony Gormley, Leonardo da Vinci, Andy Warhol, Marc, featuring exhibits from Leonardo da Vinci and Andy Warhol, through to the Egyptian Book of the Dead and live's razor · Marc Quinn · printout of the human genome · Andy Warhol · Egyptian Book of the Dead · Leonardo

  6. Designing Distributed Applications with Mobile Code Paradigms

    E-print Network

    Carzaniga, Antonio

    Milano Piazza Leonardo da Vinci, 32 20133 Milano, Italy +39-2-2399-3638 carzaniga@elet.polimi.it Gian@athena.polito.it Giovanni Vigna Politecnico di Milano Piazza Leonardo da Vinci, 32 20133 Milano, Italy +39-2-2399-3666 vigna

  7. Strada Costiera, 11 I-34151, Trieste, Italy Tel. +39 0402240111 Fax. +39 040224163 pio@ictp.it www.ictp.it ICTP is governed by UNESCO, IAEA and Italy, and is a UNESCO Category 1 Institute

    E-print Network

    or correspondence which may arrive during your stay. (*)Associates' mail box is prepared in the Leonardo da Vinci Trieste. INFO POINT (located to the left of the main entrance hall of the Leonardo da Vinci Building Level 1, Sunday 28 June 16.00 Associateship/Federation scheme/KFAS Visitors should register : Leonardo

  8. Politecnico di Milano Area Risorse Umane e Organizzazione

    E-print Network

    Politecnico di Milano Area Risorse Umane e Organizzazione Piazza Leonardo da Vinci, 32 20133 Milano Milano Area Risorse Umane e Organizzazione Piazza Leonardo da Vinci, 32 20133 Milano Tel. 02 2399 2135 Professor Residenza Tipologia alloggi foresteria Connessione internet Check-in check-out Referente Leonardo

  9. Fluid Mechanics from the Beginning to the Third Millennium*

    E-print Network

    Gad-el-Hak, Mohamed

    of mathematics. (Leonardo da Vinci, 1452±1519) The Greek mathematician Archimedes (287±212 BC) provided an exact followed, only to be re-irrigated by the Renaissance's deluge of art and science. Leonardo da Vinci (1452 the value of wind- breaks to keep top soil in place and to protect fragile crops. ARCHIMEDES TO LEONARDO

  10. Physical Activity Monitoring: Gadgets and Uses. Article #6 in a 6-Part Series

    ERIC Educational Resources Information Center

    Mears, Derrick

    2010-01-01

    An early 15th century drawing by Leonardo da Vinci depicted a device that used gears and a pendulum that moved in synchronization with the wearer as he or she walked. This is believed to be the early origins of today's physical activity monitoring devices. Today's devices have vastly expanded on da Vinci's ancient concept with a myriad of options…

  11. Remote Telesurgery Daniel Obenshain and Tom Tantillo

    E-print Network

    Amir, Yair

    surgery via robotic tools, as opposed to traditional laproscopy or even more traditional open surgery. #12;Da Vinci Robot · The da Vinci Robot, build by Intuitive Surgical, has become the most commonly to perform a gall bladder surgery while he was in New York and the patient was in France. Image from J

  12. Computer Scientist The 21st Century Renaissance Man

    E-print Network

    Aceto, Luca

    like Leonardo da Vinci, Isaac Newton and Al- bert Einstein, to name but a few, have played. People like Leonardo da Vinci, Isaac Newton and Albert Einstein are often re- ferred to as `Renaissance Lisa' or the famous fall of an apple, which, according to scientific lore, inspired Newton to discover

  13. Solution Structure of the 30 kDa N-Terminal Domain of Enzyme I of the Escherichia coli Phosphoenolpyruvate:Sugar Phosphotransferase System by

    E-print Network

    Clore, G. Marius

    Phosphoenolpyruvate:Sugar Phosphotransferase System by Multidimensional NMR Daniel S. Garrett, Yeong-Jae Seok,§ Der-terminal domain of enzyme I (EIN) of the phosphoenolpyruvate:sugar phosphotransferase system of Escherichia coli that there are no significant differences between the solution and crystal structures within the errors of the coordinates

  14. Malpighi and the discovery of capillaries.

    PubMed

    Pearce, J M S

    2007-01-01

    Leonardo da Vinci clearly observed and described capillaries. Using the microscope, Marcello Malpighi examined the brain and major organs to demonstrate their finer anatomical features. This led to his discovery in 1661, of capillaries that proved fundamental to our understanding of the vascular system in the brain and cord. He hypothesized that capillaries were the connection between arteries and veins that allowed blood to flow back to the heart in the circulation of the blood, as first asserted by William Harvey. PMID:17851250

  15. Mechanical evaluation of newly developed mouthpiece using polyethylene terephthalate glycol for transoral robotic surgery.

    PubMed

    Fujiwara, Kazunori; Fukuhara, Takahiro; Niimi, Koji; Sato, Takahiro; Kataoka, Hideyuki; Kitano, Hiroya; Takeuchi, Hiromi

    2015-12-01

    Transoral robotic surgery (TORS), performed with the da Vinci surgical system (da Vinci), has been classified as a surgical approach for benign and malignant lesions of the oral cavity and laryngopharynx. It provides several unique advantages, which include a three-dimensional magnified view, ability to see and work around curves or angles, and the availability of two or three robotic arms. At present, however, the da Vinci surgical system does not provide haptic feedback. The potential risks specific to the transoral use of the da Vinci include tooth injury, mucosal laceration, ocular injury, and mandibular fracture. To prevent such intra-operative tooth injuries, we created a mouthpiece made of polyethylene terephthalate glycol (PETG) individually shaped for the patient's teeth. We compared the safety and efficacy of the PETG mouthpiece with those of a conventional mouthpiece made of ethylene-vinyl acetate (EVA). To determine the difference in tooth injury resulting from the two types of mouthpiece, we constructed an experimental system to measure load and strain. We measured the dynamic load and the strain from the rod to the tooth using the PETG and EVA mouthpiece. The rod was pressed against the tooth model outfitted with two types of mouthpiece and the dynamic load was measured with a load cell and the strain with a strain gage. The maximum dynamic load was 1.29 ± 0.03 kgf for the PETG mouthpiece and 2.24 ± 0.05 kgf for the EVA mouthpiece. The load against the tooth was thus less for the EVA mouthpiece. The strain was -166.84 ± 3.94 and 48.24 ± 7.77 ??, respectively, while the load direction was parallel to that of the tooth axis for the PETG mouthpiece and perpendicular to the tooth axis for the EVA mouthpiece. The PETG mouthpiece reduced the tooth load compared with the EVA mouthpiece and the load direction was in parallel to the tooth axis. The PETG mouthpiece thus enhances tooth safety for TORS. PMID:26530849

  16. Concurrent and predictive validation of robotic simulator Tube 3 module

    PubMed Central

    Kim, Jae Yoon; Kim, Seung Bin; Pyun, Jong Hyun; Kim, Hyung Keun; Cho, Seok; Lee, Jeong Gu; Kim, Je Jong; Cheon, Jun; Kang, Seok Ho

    2015-01-01

    Purpose We previously described a new procedure specific module (Tube 3) to allow the practice of vesicourethral anastomosis after robot-assisted radical prostatectomy. Herein, we report a predetermined proficiency level of Tube 3 and preliminary validation to explore whether this new module can lead to performance improvement in the da Vinci system. Materials and Methods Eight urology residents and three urology fellows performed the Tube 3 module 1 hour daily for 7 days. The learning curve was depicted through a scatterplot and the stable point was identified through the cumulative sum chart. Concurrent and predictive validations were performed with the da Vinci system. The mean time to complete the task and end product rating score between Tube 3 training group and no Tube 3 training group were compared. Results Concerning the learning curve, about 41 repetitions comprising about 5 hours were needed to achieve this stable point when the mean time to complete Tube of 384 seconds was set as a target. With regarding to the concurrent and predictive validation, there significant differences were evident in the mean time to complete 16 needle passages and the vesicourethral anastomosis and the end product rating score. Conclusions The virtual reality (VR) simulator can yield sufficient improvement in technical performance in Tube 3 within 5 hours. The acquired proficiency can be transferable to the vesicourethral anastomosis using the da Vinci system. PMID:26568793

  17. Rational design of D-A1-D-A2 conjugated polymers with superior spectral coverage.

    PubMed

    Hedström, Svante; Tao, Qiang; Wang, Ergang; Persson, Petter

    2015-10-28

    The spectral coverage of a light-harvesting polymer largely determines the maximum achievable photocurrent in organic photovoltaics, and therefore constitutes a crucial parameter for improving their performance. The D-A1-D-A2 copolymer motif is a new and promising design strategy for extending the absorption range by incorporating two acceptor units with complementary photoresponses. The fundamental factors that promote an extended absorption are here determined for three prototype D-A1-D-A2 systems through a combination of experimental and computational methods. Systematic quantum chemical calculations are then used to reveal the intrinsic optical properties of ten further D-A1-D-A2 polymer candidates. These investigated polymers are all predicted to exhibit intense primary absorption peaks at 615-954 nm, corresponding to charge-transfer (CT) transitions to the stronger acceptor, as well as secondary absorption features at 444-647 nm that originate from CT transitions to the weaker acceptors. Realization of D-A1-D-A2 polymers with superior spectral coverage is thereby found to depend critically on the spatial and energetic separation between the two distinct acceptor LUMOs. Two promising D-A1-D-A2 copolymer candidates were finally selected for further theoretical and experimental study, and demonstrate superior light-harvesting properties in terms of significantly extended spectral coverage. This demonstrates great potential for enhanced light-harvesting in D-A1-D-A2 polymers via multiple absorption features compared to traditional D-A polymers. PMID:26394002

  18. SAT Scores, 2012-13: Wake County Public School System (WCPSS). Measuring Up. D&A Report No. 13.22

    ERIC Educational Resources Information Center

    Muli, Juliana; Gilleland, Kevin; McMillen, Brad

    2014-01-01

    As the ACT has become part of North Carolina's mandatory testing program, SAT participation in Wake County Public School System (WCPSS) and North Carolina has declined in recent years. However, SAT performance in WCPSS remains high compared to state and national averages. In 2012-13, students in WCPSS continued to score 50-60 points higher on the…

  19. Strategies for Reforming Initial Vocational Education and Training in Europe. Final Report of the Project. Leonardo da Vinci/Transnational Pilot Projects: Multiplier Effect, Strand III.3.a. Sharpening Post-16 Education Strategies by Horizontal and Vertical Networking (1997-2000).

    ERIC Educational Resources Information Center

    Stenstrom, Marja-Leena, Ed.; Lasonen, Johanna, Ed.

    This document contains 24 papers examining strategies for reforming initial vocational education and training (VET) in Europe. The following papers are included: "Reassessing VET Reform Strategies in a New Context: Implementation of the SPES-NET (Sharpening Post-16 Education Strategies by Horizontal and Vertical Networking) Project" (Marja-Leena…

  20. Recent Improvements in the ATLAS PanDA Pilot

    NASA Astrophysics Data System (ADS)

    Nilsson, P.; Caballero Bejar, J.; Compostella, G.; Contreras, C.; De, K.; Dos Santos, T.; Maeno, T.; Potekhin, M.; Wenaus, T.

    2012-12-01

    The Production and Distributed Analysis system (PanDA) in the ATLAS experiment uses pilots to execute submitted jobs on the worker nodes. The pilots are designed to deal with different runtime conditions and failure scenarios, and support many storage systems. This talk will give a brief overview of the PanDA pilot system and will present major features and recent improvements including CernVM File System integration, the job retry mechanism, advanced job monitoring including JEM technology, and validation of new pilot code using the HammerCloud stress-testing system. PanDA is used for all ATLAS distributed production and is the primary system for distributed analysis. It is currently used at over 130 sites worldwide. We analyze the performance of the pilot system in processing LHC data on the OSG, EGI and Nordugrid infrastructures used by ATLAS, and describe plans for its further evolution.

  1. A novel homologous recombination system to study 92 kDa type IV collagenase transcription demonstrates that the NF-kappaB motif drives the transition from a repressed to an activated state of gene expression.

    PubMed

    Yan, Chunhong; Wang, Heng; Aggarwal, Bharat; Boyd, Douglas D

    2004-03-01

    The 92-kDa type IV collagenase (MMP-9) contributes to tissue remodeling in both physiology and pathology. Previous studies on the transcriptional regulation of this gene have used transiently transfected promoter-reporter constructs. However, this approach suffers from several limitations including (a) multiple copies of the plasmid and (b) the plasmid is not genomically integrated and consequently poorly chromatinized. We developed a novel system for studying MMP-9 transcription in which a single copy of a MMP-9 promoter-luciferase construct(s) is integrated at an identical genomic locus in HT1080 cells by homologous recombination. We report that the activity of a genomic-integrated 2.2 kb MMP-9 promoter sequence mirrors expression of the endogenous MMP-9 gene in response to both physiological and pharmacological (curcumin) cues. Further, when constrained into chromatin, the integrated NF-kappaB-mutated MMP-9 promoter is repressed by PMA, a situation not apparent using nonintegrated plasmids. Thus, we have developed a novel method for studying MMP-9 expression that overcomes some of the limitations associated with transient transfection approaches and which may be of utility in screening for agents that repress the expression of this gene. PMID:14715692

  2. Compacting XML Data: Zhang, Dyreson, Dang Compacting XML Data

    E-print Network

    Dyreson, Curtis

    Compacting XML Data: Zhang, Dyreson, Dang Compacting XML Data Shuohao Zhang, Curtis Dyreson and Zhe XML Data: Zhang, Dyreson, Dang Book Data Doubleday The Da Vinci Code: Zhang, Dyreson, Dang Same Data, Different Structure Doubleday The Da

  3. Informativo Ano 1 n 02 Agosto/2013 Lanamento da pedra fundamental da sede da OTCA

    E-print Network

    Como parte da comemoração dos 35 anos do Tratado de Cooperação Amazônica foi lançada, no dia 01 de agosto, a pedra fundamental para a construção da nova sede da OTCA em Brasília. O tratado foi assinado reunião com a OTCA (Organização do Tratado de Cooperação Amazônica) em que foram discutidos os resultados

  4. Overview of ATLAS PanDA Workload Management

    SciTech Connect

    Maeno T.; De K.; Wenaus T.; Nilsson P.; Stewart G. A.; Walker R.; Stradling A.; Caballero J.; Potekhin M.; Smith D.

    2011-01-01

    The Production and Distributed Analysis System (PanDA) plays a key role in the ATLAS distributed computing infrastructure. All ATLAS Monte-Carlo simulation and data reprocessing jobs pass through the PanDA system. We will describe how PanDA manages job execution on the grid using dynamic resource estimation and data replication together with intelligent brokerage in order to meet the scaling and automation requirements of ATLAS distributed computing. PanDA is also the primary ATLAS system for processing user and group analysis jobs, bringing further requirements for quick, flexible adaptation to the rapidly evolving analysis use cases of the early datataking phase, in addition to the high reliability, robustness and usability needed to provide efficient and transparent utilization of the grid for analysis users. We will describe how PanDA meets ATLAS requirements, the evolution of the system in light of operational experience, how the system has performed during the first LHC data-taking phase and plans for the future.

  5. Henrique da Rocha Lima.

    PubMed

    Bernardes Filho, Fred; Avelleira, João Carlos Regazzi

    2015-01-01

    Brazilian physician and researcher Henrique da Rocha Lima was born in 1879 in the city of Rio de Janeiro, where he studied medicine and obtained the degree of M.D. in 1901. He specialized in Clinical Medicine in Germany and was the ambassador in European countries of the scientific medicine that emerged from the Oswaldo Cruz Institute in the early twentieth century. Rocha Lima has discovered the causative agent of typhus and had a major contribution to the studies of yellow fever, Chagas disease, Carrión's disease and histoplasmosis. His genius, his research and his discoveries projected his name, and, with it, the image of Brazil in the international scientific scene. PMID:26131867

  6. ORORGENES DE LA GEOMETRGENES DE LA GEOMETRA PROYECTIVAA PROYECTIVA Mara Emilia Alonso Departamento de lgebra, UCM

    E-print Network

    Ruiz, Jesús M.

    y Topología, UCM LA GEOMETRLA GEOMETRÍÍA EN LEONARDO DA VINCIA EN LEONARDO DA VINCI Proyectos UCM de espacio imaginario. Leonardo da Vinci (1452-1519) Nació el 15 de abril de 1452 en el pueblo toscano de Virgen que recibe el mensaje situada a la derecha. La rigurosa formación científica de Leonardo influye

  7. Portugueses criam terapeuta virtual da fala

    E-print Network

    Instituto de Sistemas e Robotica

    avaliação de 30 terapeutas da fala, "numa escala de zero a cinco, teve a nota muito boa de 4,65", diz Fonseca, da Facul- dade de Medicina da Universidade de Lis- boa, ficou claro que uma ferramenta deste tipo

  8. Henrique da Rocha Lima*

    PubMed Central

    Bernardes Filho, Fred; Avelleira, João Carlos Regazzi

    2015-01-01

    Brazilian physician and researcher Henrique da Rocha Lima was born in 1879 in the city of Rio de Janeiro, where he studied medicine and obtained the degree of M.D. in 1901. He specialized in Clinical Medicine in Germany and was the ambassador in European countries of the scientific medicine that emerged from the Oswaldo Cruz Institute in the early twentieth century. Rocha Lima has discovered the causative agent of typhus and had a major contribution to the studies of yellow fever, Chagas disease, Carrión’s disease and histoplasmosis. His genius, his research and his discoveries projected his name, and, with it, the image of Brazil in the international scientific scene. PMID:26131867

  9. PanDA Beyond ATLAS: Workload Management for Data Intensive Science

    E-print Network

    Schovancova, J; The ATLAS collaboration; Klimentov, A; Maeno, T; Nilsson, P; Oleynik, D; Panitkin, S; Petrosyan, A; Vaniachine, A; Wenaus, T; Yu, D

    2013-01-01

    The PanDA Production ANd Distributed Analysis system has been developed by ATLAS to meet the experiment's requirements for a data-driven workload management system for production and distributed analysis processing capable of operating at LHC data processing scale. After 7 years of impressively successful PanDA operation in ATLAS there are also other experiments which can benefit from PanDA in the Big Data challenge, with several at various stages of evaluation and adoption. The new project "Next Generation Workload Management and Analysis System for Big Data" is extending PanDA to meet the needs of other data intensive scientific applications in HEP, astro-particle and astrophysics communities, bio-informatics and other fields as a general solution to large scale workload management. PanDA can utilize dedicated or opportunistic computing resources such as grids, clouds, and High Performance Computing facilities, and is being extended to leverage next generation intelligent networks in automated workflow mana...

  10. Affective coherence: Affect as embodied evidence in attitude, advertising and art

    E-print Network

    Clore, Gerald L.; Schnall, Simone

    2008-01-01

    to validate the 12 evaluative ideas depicted, so that perspective became a powerful tool of persuasion. One particularly interesting application of the “good-is-up” principle can be seen in Leonardo da Vinci’s fresco, “The Last Supper.” The work shows... ’s eye. However, Kubovy (1986) points out that in this famous fresco, da Vinci violated his own principle. An analysis of the work shows clearly that the center of projection was not the viewer’s eye but a point 15 feet above the viewer. According...

  11. Overcoming the obstacles: life stories of scientists with learning disabilities 

    E-print Network

    Force, Crista Marie

    2009-05-15

    rewarding and their contributions significant to society (i.e., Albert Einstein, Thomas Alva Edison, Leonardo da Vinci, William Faraday, Henry Ford, and Alexander Graham Bell). Biographies of these scientists are readily available to the public including...

  12. Ostomy Self-Management: Ostomy Care

    MedlinePLUS

    ... this section Surgery Inpatient Surgical Care General Surgery Robotic Surgery Planning for Surgery Patient Support Ask the ... surgery. Laparoscopic procedures Minimally invasive endovascular surgery DaVinci robotic procedures for urology and gynecology FLAP surgery for ...

  13. Nature's engineering : a blueprint for efficient aircraft design

    E-print Network

    Pineda, Elvine Philip B., II

    2011-01-01

    The flight of birds inspired engineers like Leonard da Vinci and Wilbur and Orville Wright to design aircraft that mimic the behavior they observed. The success of the Wright brothers' first controllable aircraft ushered ...

  14. Phil. Trans. R. Soc. A (2010) 368, 11911204 doi:10.1098/rsta.2009.0265

    E-print Network

    Zewail, Ahmed

    2010-01-01

    The Royal Society1191 #12;1192 A. H. Zewail Figure 1. The significance of the light­life interaction to the contributions of Kepler, Descartes, Da Vinci, Snell and Newton. But of relevance to our topic is his conceptual

  15. Politecnico di Milano Area Risorse Umane e Organizzazione

    E-print Network

    Politecnico di Milano Area Risorse Umane e Organizzazione Piazza Leonardo da Vinci, 32 20133 Milano .................................................................................................. Age ............... 4. Will you work in Leonardo or Bovisa Campus? 5. Which kind of apartment would

  16. What Shadows Reveal About Object Structure David J. Kriegman and Peter N. Belhumeur

    E-print Network

    ], Leonardo da Vinci errs in analysis of shadows while comparing painting and relief sculpture: As far. However, Leonardo's statement appears to overlook the fact that for any flattening of the surface relief

  17. Kate Steinitz, Librarian, Artist, Scholar; Being a Thirteen-Part Tribute to One Whose Verve Has Enlivened Some Eight Decades on Two Continents

    ERIC Educational Resources Information Center

    Wilson Libr Bull, 1970

    1970-01-01

    Personal reminiscences about the Dada artist, expert on Leonardo da Vinci, and librarian at the UCLA Library of Vinciana by museum directors, scholars, and friends. Includes selected bibliography of her works, a chronology, poems, sketches, and photographs. (JS)

  18. Leonardo's Tree Theory.

    ERIC Educational Resources Information Center

    Werner, Suzanne K.

    2003-01-01

    Describes a series of activities exploring Leonardo da Vinci's tree theory that are designed to strengthen 8th grade students' data collection and problem solving skills in physical science classes. (KHR)

  19. Under(lining) Leh : the order of consciousness

    E-print Network

    Bagai, Radhika

    1994-01-01

    "Because it is beautiful, there must be a formal order." - Leonardo Da Vinci. The thesis is an investigation into the idea that nothing built evolves naturally, that there is an explicit or implicit structure and an order ...

  20. Anatomy and art.

    PubMed

    Laios, Konstantinos; Tsoukalas, Gregory; Karamanou, Marianna; Androutsos, George

    2013-01-01

    Leonardo da Vinci, Jean Falcon, Andreas Vesalius, Henry Gray, Henry Vandyke Carter and Frank Netter created some of the best atlases of anatomy. Their works constitute not only scientific medical projects but also masterpieces of art. PMID:24640589

  1. An image processing of a Raphael's portrait of Leonardo

    E-print Network

    Sparavigna, Amelia Carolina

    2011-01-01

    In one of his paintings, the School of Athens, Raphael is depicting Leonardo da Vinci as the philosopher Plato. Some image processing tools can help us in comparing this portrait with two Leonardo's portraits, considered as self-portraits.

  2. [Geometry of laparoscopy, telesurgery, training and telementoring].

    PubMed

    Rassweiler, J; Frede, T

    2002-03-01

    Laparoscopic surgery in general is handicapped by the reduction of the range of motion from 6 to 4 degrees of freedom. This has a major impact on technically difficult procedures such as laparoscopic radical prostatectomy. Solutions for this problem include understanding the geometry of laparoscopy with sophisticated training programs, but also newly developed surgical robots, computer simulators, and telementoring. This article evaluates the value of these alternatives based on own experience and an analysis of the current literature. Our experience with robot-assisted surgery includes 244 laparoscopic radical prostatectomies using a voice-controlled camera arm (AESOP) and 6 telesurgical interventions with the da Vinci system. Additionally, experimental studies were performed focussing on the geometry of laparoscopy and new training concepts such as perfused pelvitrainers and computer simulation. Three-dimensional systems have not yet proved to be effective due to handling problems such as shutter glasses, video helmets, or reduced brightness. At present, there are only two robotic surgical systems (ZEUS, da Vinci) in clinical use for telesurgery, of which only the da Vinci provides stereovision and all 6 degrees of freedom (DOF). In the meantime, more than 100 laparoscopic radical prostatectomies have been performed with this system. However, there was no evidence of any advantages over the conventional laparoscopic approach. The ZEUS in combination with the telecommunication system SOKRATES is the only device that enables telemanipulation and telementoring over long distances (i.e., transatlantic). Robotic surgery represents a turning point in surgical research. However, broad use of robotic systems is limited mainly because of high investment and running costs. Whereas audiovisual telementoring will play a clear role in future training concepts, the need for telemanipulation or telesurgery has not yet been clarified. PMID:11993091

  3. High-speed 3-dimensional imaging in robot-assisted thoracic surgical procedures.

    PubMed

    Kajiwara, Naohiro; Akata, Soichi; Hagiwara, Masaru; Yoshida, Koichi; Kato, Yasufumi; Kakihana, Masatoshi; Ohira, Tatsuo; Kawate, Norihiko; Ikeda, Norihiko

    2014-06-01

    We used a high-speed 3-dimensional (3D) image analysis system (SYNAPSE VINCENT, Fujifilm Corp, Tokyo, Japan) to determine the best positioning of robotic arms and instruments preoperatively. The da Vinci S (Intuitive Surgical Inc, Sunnyvale, CA) was easily set up accurately and rapidly for this operation. Preoperative simulation and intraoperative navigation using the SYNAPSE VINCENT for robot-assisted thoracic operations enabled efficient planning of the operation settings. The SYNAPSE VINCENT can detect the tumor location and depict surrounding tissues quickly, accurately, and safely. This system is also excellent for navigational and educational use. PMID:24882302

  4. Identifying nude pictures D.A. Forsyth M.M. Fleck

    E-print Network

    Fleck, Margaret M.

    Identifying nude pictures D.A. Forsyth M.M. Fleck Computer Science Division Department of Computer background (e.g. [?]); there is little work on segmentation. None of these systems is suitable for analyzing

  5. System engineering applied to VLTI: a scientific success

    NASA Astrophysics Data System (ADS)

    Haguenauer, P.; Alonso, J.; Bourget, P.; Gitton, Ph.; Morel, S.; Poupar, S.; Schuhler, Nicolas

    2014-07-01

    The ESO Very Large Telescope Interferometer (VLTI) offers access to the four 8-m Unit Telescopes (UT) and the four 1.8-m Auxiliary Telescopes (AT) of the Paranal Observatory. After the first fringes obtained in 2011 with the commissioning instrument VINCI and with siderostats, the VLTI has seen an important number of systems upgrades, paving the path towards reaching the infrastructure level and scientific results it had been designed for. The current status of the VLTI operation all year round with up to four telescopes simultaneously and real imaging capability demonstrates the powerful interferometric infrastructure that has been delivered to the astronomical community. Reaching today's level of robustness and operability of the VLTI has been a long journey, with a lot of lessons learned and gained experience. In 2007, the Paranal Observatory recognized the need for a global system approach for the VLTI, and a dedicated system engineering team was set to analyse the status of the interferometer, identify weak points and area where performances were not met, propose and apply solutions. The gains of this specific effort can be found today in the very good operability level with faster observations executions, in the decreased downtime, in the improved performances, and in the better reliability of the different systems. We will present an historical summary of the system engineering effort done at the VLTI, showing the strategy used, and the implemented upgrades and technical solutions. Improvements in terms of scientific data quality will be highlighted when possible. We will conclude on the legacy of the VLTI system engineering effort, for the VLTI and for future systems.

  6. 2D–3D radiograph to cone-beam computed tomography (CBCT) registration for C-arm image-guided robotic surgery

    PubMed Central

    Liu, Wen Pei; Otake, Yoshito; Azizian, Mahdi; Wagner, Oliver J.; Sorger, Jonathan M.; Armand, Mehran; Taylor, Russell H.

    2015-01-01

    Purpose C-arm radiographs are commonly used for intraoperative image guidance in surgical interventions. Fluoroscopy is a cost-effective real-time modality, although image quality can vary greatly depending on the target anatomy. Cone-beam computed tomography (CBCT) scans are sometimes available, so 2D–3D registration is needed for intra-procedural guidance. C-arm radiographs were registered to CBCT scans and used for 3D localization of peritumor fiducials during a minimally invasive thoracic intervention with a da Vinci Si robot. Methods Intensity-based 2D–3D registration of intraoperative radiographs to CBCT was performed. The feasible range of X-ray projections achievable by a C-arm positioned around a da Vinci Si surgical robot, configured for robotic wedge resection, was determined using phantom models. Experiments were conducted on synthetic phantoms and animals imaged with an OEC 9600 and a Siemens Artis zeego, representing the spectrum of different C-arm systems currently available for clinical use. Results The image guidance workflow was feasible using either an optically tracked OEC 9600 or a Siemens Artis zeego C-arm, resulting in an angular difference of ?? : ~ 30°. The two C-arm systems provided TREmean ? 2.5 mm and TREmean ? 2.0 mm, respectively (i.e., comparable to standard clinical intraoperative navigation systems). Conclusions C-arm 3D localization from dual 2D–3D registered radiographs was feasible and applicable for intraoperative image guidance during da Vinci robotic thoracic interventions using the proposed workflow. Tissue deformation and in vivo experiments are required before clinical evaluation of this system. PMID:25503592

  7. The ATLAS PanDA Pilot in Operation

    NASA Astrophysics Data System (ADS)

    Nilsson, P.; Caballero, J.; De, K.; Maeno, T.; Stradling, A.; Wenaus, T.; ATLAS Collaboration

    2011-12-01

    The Production and Distributed Analysis system (PanDA) [1-2] was designed to meet ATLAS [3] requirements for a data-driven workload management system capable of operating at LHC data processing scale. Submitted jobs are executed on worker nodes by pilot jobs sent to the grid sites by pilot factories. This paper provides an overview of the PanDA pilot [4] system and presents major features added in light of recent operational experience, including multi-job processing, advanced job recovery for jobs with output storage failures, gLExec [5-6] based identity switching from the generic pilot to the actual user, and other security measures. The PanDA system serves all ATLAS distributed processing and is the primary system for distributed analysis; it is currently used at over 100 sites worldwide. We analyze the performance of the pilot system in processing real LHC data on the OSG [7], EGI [8] and Nordugrid [9-10] infrastructures used by ATLAS, and describe plans for its evolution.

  8. PAN-DA and beyond: Data acquisition for the next generation experiments

    SciTech Connect

    Pordes, R.; Anderson, J.; Berg, D.; Berman, E.; Brown, D.; Dorries, T.; Mackinnon, B.; Meadows, J.; Moore, C.; Nicinski, T.; Oleynik, G.; Petravick, D.; Rechenmacher, R.; Sergey, G.; Slimmer, D.; Streets, J.; Vittone, M.; Votava, M.; Wilcer, N.; White, V.

    1991-06-01

    We report on the status of the PAN-DA data acquisition system presented at the last Real Time Conference. Since that time, PAN-DA has been successfully used in the fixed target program at Fermilab. We also report on the plans and strategies for development of a new data acquisition system for the next generation of fixed target experiments at Fermilab. 10 refs., 3 figs.

  9. PRESIDNCIA DA REPBLICA CONTROLADORIA-GERAL DA UNIO

    E-print Network

    Maier, Rudolf Richard

    pessoal em exercício na Auditoria Interna, bem como da carência de pessoal qualificado para execução dessa trabalhos administrativos (secretária). Apesar dessa dificuldade, há que se registrar a boa qualidade do

  10. Lembranías da Companhia dramática Nacional

    E-print Network

    Calvet, Aldo

    1984-04-01

    Falecida, de Nelson Rodrigues; a Nilson Pena, de Melhor Cenógrafo e Figurinista de Canção dentro do Põ, de R. Magalhães Jr.; e a Anísio Medeiros, de Melhor Cenógrafo e Figurinista de A Raposa e as Uvas; todos em dinheiro da Prefeitura do Distrito Federal...

  11. AGUARDANDO HOMOLOGAO MINISTRIO DA EDUCAO

    E-print Network

    Maier, Rudolf Richard

    do Tratado da Amizade, Cooperação e Consulta entre a República #12;Federativa do Brasil e a República Portuguesa, Decreto 3.927, de 19 de setembro de 2001. A implementação deste Tratado por parte do governo

  12. The Future of PanDA in ATLAS Distributed Computing

    E-print Network

    De, Kaushik; The ATLAS collaboration; Maeno, Tadashi; Nilsson, Paul; Oleynik, Danila; Panitkin, Sergey; Petrosyan, Artem; Schovancova, Jaroslava; Vaniachine, Alexandre; Wenaus, Torre

    2015-01-01

    Experiments at the Large Hadron Collider (LHC) face unprecedented computing challenges. Heterogeneous resources are distributed worldwide at hundreds of sites, thousands of physicists analyze the data remotely, the volume of processed data is beyond the exabyte scale, while data processing requires more than a few billion hours of computing usage per year. The PanDA (Production and Distributed Analysis) system was developed to meet the scale and complexity of LHC distributed computing for the ATLAS experiment. In the process, the old batch job paradigm of locally managed computing in HEP was discarded in favor of a far more automated, flexible and scalable model. The success of PanDA in ATLAS is leading to widespread adoption and testing by other experiments. PanDA is the first exascale workload management system in HEP, already operating at more than a million computing jobs per day, and processing over an exabyte of data in 2013. There are many new challenges that PanDA will face in the near future, in addi...

  13. Minerao de Sries Temporais por meio da Extrao de Caractersticas e da Identificao de Motifs

    E-print Network

    Batista, Gustavo

    Mineração de Séries Temporais por meio da Extração de Características e da Identificação de Motifs conhecimento de sé- ries temporais, por meio da extração de características e da identificação de motifs

  14. Normas de Emprstimo de Notebooks Da Finalidade

    E-print Network

    Paraná, Universidade Federal do

    Normas de Empréstimo de Notebooks Da Finalidade Art. 1 - Garantir aos estudantes vinculados ao Programa de Benefícios Econômicos da UFPR (Probem), acesso a notebook para fins acadêmicos, como ferramenta da devolução. #12;Art. 13 ­ Não é permitido: a) instalar e desinstalar qualquer programa do notebook

  15. Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN

    E-print Network

    Paraná, Universidade Federal do

    confirmação da matrícula e solicitação de equivalências 10-12/fev - (TCC Lic e Bac ) Inscrição em monografia-21/nov (TCC Lic e Bac ) Prazo para entregar uma cópia da monografia para os membros da banca de avaliação Semana de Estudos 09-14/jun 01-06/dez (TCC Lic e Bac ) Semana de Apresentação de Monografias 09-14/jun 01

  16. Modeling surgical skill learning with cognitive simulation.

    PubMed

    Park, Shi-Hyun; Suh, Irene H; Chien, Jung-hung; Paik, Jaehyon; Ritter, Frank E; Oleynikov, Dmitry; Siu, Ka-Chun

    2011-01-01

    We used a cognitive architecture (ACT-R) to explore the procedural learning of surgical tasks and then to understand the process of perceptual motor learning and skill decay in surgical skill performance. The ACT-R cognitive model simulates declarative memory processes during motor learning. In this ongoing study, four surgical tasks (bimanual carrying, peg transfer, needle passing, and suture tying) were performed using the da Vinci© surgical system. Preliminary results revealed that an ACT-R model produced similar learning effects. Cognitive simulation can be used to demonstrate and optimize the perceptual motor learning and skill decay in surgical skill training. PMID:21335834

  17. Transoral robotic sleep surgery: the obstructive sleep apnea-hypopnea syndrome.

    PubMed

    Crawford, Julia A; Montevecchi, Fliippo; Montevechi, Filippo; Vicini, Claudio; Magnuson, J Scott

    2014-06-01

    Nocturnal upper airway collapse is often multi-level in nature but typically will involve some degree of obstruction at the level of the tongue-base. Several surgical procedures have been developed in recent years to address this area in patients resistant to continuous positive airway pressure. This article outlines a novel way to treat obstructive sleep apnea lingual obstruction using the da Vinci robotic surgical system. This technique offers significant potential advantages over other established approaches and it should be included in the surgical armamentarium of sleep surgeons. PMID:24882797

  18. Totally Robotic Roux-en-Y Gastric Bypass: Technique.

    PubMed

    Aggarwal, Sandeep; Sharma, Aditya P; Kumar, Rajeev; Anand, Santosh

    2015-04-01

    The da Vinci(TM) robotic system (Intuitive Surgical, Inc, Sunnyvale, CA) has been used frequently for urological procedures including radical prostatectomy and pyeloplasty. Its use in bariatric surgery is limited to few high volume centres in the western world. The advantages of robotic assistance are three-dimensional vision, ergonomic advantage and improved precision. We report our experience of using this advanced technology to perform a robotic Roux-en-Y gastric bypass in a 55-year-old obese diabetic patient. We were able to reproduce our standard laparoscopic technique and all the steps of the surgical procedure were done using robotic assistance. PMID:26139977

  19. Novel Totally Robotic Repair of Right Ventricular Outflow Tract Obstruction.

    PubMed

    Gao, Changqing; Yang, Ming; Xiao, Cangsong; Zhang, Huajun

    2015-01-01

    Right ventricular outflow tract (RVOT) obstruction is among the commonest congenital heart defects in the grown-up, and pulmonary stenosis is the dominant subtype. We described our successful novel surgical technique of totally robotic antegrade RVOT repair in two cases of pulmonary stenosis with concomitant repair of atrial septal defect using da Vinci SI Surgical System (Intuitive Surgical, Inc, Sunnyvale, CA USA) with excellent surgical outcome. We conclude that robotic antegrade repair of the valvular and subvalvular subset of RVOT obstruction is feasible in adults. PMID:26368031

  20. Robot-assisted laparoscopic retroperitoneal lymph node dissection for stage IIIb mixed germ cell testicular cancer after chemotherapy

    PubMed Central

    Lee, Sang Hyub; Kim, Dong Soo; Chang, Sung-Goo

    2015-01-01

    Laparoscopic retroperitoneal lymph node dissection, especially when performed with the da Vinci Surgical System (Intuitive Surgical), has shown excellent cosmetic results with similar oncologic outcomes to those of open surgery. In this study, we present a case of robot-assisted retroperitoneal lymph node dissection performed in an 18-year-old man who was diagnosed with a stage IIIb mixed germ cell tumor and who was initially treated with radical orchiectomy, followed by chemotherapy. This case shows that robot-assisted retroperitoneal lymph node dissection is technically feasible, safe, and cosmetically favorable, even when performed on patients with high-stage disease or after chemotherapy. PMID:26175874

  1. Laparoscopic Robot-Assisted Diaphragm Plication.

    PubMed

    Zwischenberger, Brittany A; Kister, Nathaniel; Zwischenberger, Joseph B; Martin, Jeremiah T

    2016-01-01

    Minimally invasive approaches to diaphragm plication for eventration include thoracoscopic and laparoscopic techniques. The elevated hemidiaphragm and ribs limit thoracoscopic techniques. We report our modification of the laparoscopic approach using robotic assistance with the da Vinci Surgical System, (Intuitive Surgical Inc, Sunnyvale, CA) to avoid single-lung ventilation, facilitate exposure, and allow more precise placement of plication sutures to achieve an even tension and maximum plication. Critical steps include creation of a small defect in the diaphragm to equalize pressures between cavities and placement of multiple, pledgeted interrupted horizontal mattresses. PMID:26694286

  2. The major histocompatibility complex genes impact pain response in DA and DA.1U rats.

    PubMed

    Guo, Yuan; Yao, Fan-Rong; Cao, Dong-Yuan; Li, Li; Wang, Hui-Sheng; Xie, Wen; Zhao, Yan

    2015-08-01

    Our recent studies have shown that the difference in basal pain sensitivity to mechanical and thermal stimulation between Dark-Agouti (DA) rats and a novel congenic DA.1U rats is major histocompatibility complex (MHC) genes dependent. In the present study, we further used DA and DA.1U rats to investigate the role of MHC genes in formalin-induced pain model by behavioral, electrophysiological and immunohistochemical methods. Behavioral results showed biphasic nociceptive behaviors increased significantly following the intraplantar injection of formalin in the hindpaw of DA and DA.1U rats. The main nociceptive behaviors were lifting and licking, especially in DA rats (P<0.001 and P<0.01). The composite pain scores (CPS) in DA rats were significantly higher than those in DA.1U rats in both phases of the formalin test (P<0.01). Electrophysiological results also showed the biphasic increase in discharge rates of C and A? fibers of L5 dorsal root in the two strains, and the net change of the discharge rate of DA rats was significantly higher than that of DA.1U rats (P<0.05). The mechanical thresholds decreased after formalin injection in both strains (P<0.01), and the net change in the mechanical threshold in DA was greater than that in DA.1U rats (P<0.05). The expression of RT1-B, representation of MHC class II molecule, in laminae I-II of L4/5 spinal cord in DA rats was significantly higher than that in DA.1U rats in the respective experimental group (P<0.05). These results suggested that both DA and DA.1U rats exhibited nociceptive responses in formalin-induced pain model and DA rats were more sensitive to noxious chemical stimulus than DA.1U rats, indicating that MHC genes might contribute to the difference in pain sensitivity. PMID:25861730

  3. Modeling and optimal design of an optical MEMS tactile sensor for use in robotically assisted surgery

    NASA Astrophysics Data System (ADS)

    Ahmadi, Roozbeh; Kalantari, Masoud; Packirisamy, Muthukumaran; Dargahi, Javad

    2010-06-01

    Currently, Minimally Invasive Surgery (MIS) performs through keyhole incisions using commercially available robotic surgery systems. One of the most famous examples of these robotic surgery systems is the da Vinci surgical system. In the current robotic surgery systems like the da Vinci, surgeons are faced with problems such as lack of tactile feedback during the surgery. Therefore, providing a real-time tactile feedback from interaction between surgical instruments and tissue can help the surgeons to perform MIS more reliably. The present paper proposes an optical tactile sensor to measure the contact force between the bio-tissue and the surgical instrument. A model is proposed for simulating the interaction between a flexible membrane and bio-tissue based on the finite element methods. The tissue is considered as a hyperelastic material with the material properties similar to the heart tissue. The flexible membrane is assumed as a thin layer of silicon which can be microfabricated using the technology of Micro Electro Mechanical Systems (MEMS). The simulation results are used to optimize the geometric design parameters of a proposed MEMS tactile sensor for use in robotic surgical systems to perform MIS.

  4. A Prospective Comparison of Robotic and Laparoscopic Pyeloplasty

    PubMed Central

    Link, Richard E.; Bhayani, Sam B.; Kavoussi, Louis R.

    2006-01-01

    Objective: To determine whether robotic-assisted pyeloplasty (RLP) has any significant clinical or cost advantages over laparoscopic pyeloplasty (LP) for surgeons already facile with intracorporeal suturing. Summary Background Data: LP has become an established management approach for primary ureteropelvic junction obstruction. More recently, the da Vinci robot has been applied to this procedure (RLP) in an attempt to shorten the learning curve. Whether RLP provides any significant advantage over LP for the experienced laparoscopist remains unclear. Methods: Ten consecutive cases each of transperitoneal RLP and LP performed by a single surgeon were compared prospectively with respect to surgical times and perioperative outcomes. Cost assessment was performed by sensitivity analysis using a mathematical cost model incorporating operative time, anesthesia fees, consumables, and capital equipment depreciation. Results: The RLP and LP groups had statistically indistinguishable demographics, pathology, and similar perioperative outcomes. Mean operative and total room time for RLP was significantly longer than LP by 19.5 and 39.0 minutes, respectively. RLP was much more costly than LP (2.7 times), due to longer operative time, increased consumables costs, and depreciation of the costly da Vinci system. However, even if depreciation was eliminated, RLP was still 1.7 times as costly as LP. One-way sensitivity analysis showed that LP operative time must increase to almost 6.5 hours for it to become cost equivalent to RLP. Conclusions: For the experienced laparoscopist, application of the da Vinci robot resulted in no significant clinical advantage and added substantial cost to transperitoneal laparoscopic dismembered pyeloplasty. PMID:16552199

  5. DsbA2 (27-kDa Com1-Like Protein) of Legionella pneumophila Catalyses Extracytoplasmic Disulfide-Bond Formation in Proteins Including the Dot/Icm Type IV Secretion System

    PubMed Central

    Jameson-Lee, Max; Garduno, Rafael A.; Hoffman, Paul S.

    2011-01-01

    Summary In Gram negative bacteria, thiol oxidoreductases catalyze the formation of disulfide bonds (DSB) in extracytoplasmic proteins. In this study, we sought to identify DSB-forming proteins required for assembly of macromolecular structures in Legionella pneumophila. Here we describe two DSB forming proteins, one annotated as dsbA1 and the other annotated as a 27-kDa outer membrane protein similar to Com1 of Coxiella burnetii, which we designate as dsbA2. Both proteins are predicted to be periplasmic, and while dsbA1 mutants were readily isolated and without phenotype, dsbA2 mutants were not obtained. To advance studies of DsbA2, a cis-proline residue at position 198 was replaced with threonine that enables formation of stable disulfide-bond complexes with substrate proteins. Expression of DsbA2 P198T-mutant protein from an inducible promoter produced dominant-negative effects on DsbA2 function that resulted in loss of infectivity for amoeba and HeLa cells and loss of Dot/Icm T4SS-mediated contact hemolysis of erythrocytes. Analysis of captured DsbA2 P198T-substrate complexes from L. pneumophila by mass spectrometry identified periplasmic and outer membrane proteins that included components of the Dot/Icm T4SS. More broadly, our studies establish a DSB oxidoreductase function for the Com1 lineage of DsbA2-like proteins which appear to be conserved among those bacteria also expressing T4SS. PMID:21375592

  6. Augmented reality image guidance for minimally invasive coronary artery bypass

    NASA Astrophysics Data System (ADS)

    Figl, Michael; Rueckert, Daniel; Hawkes, David; Casula, Roberto; Hu, Mingxing; Pedro, Ose; Zhang, Dong Ping; Penney, Graeme; Bello, Fernando; Edwards, Philip

    2008-03-01

    We propose a novel system for image guidance in totally endoscopic coronary artery bypass (TECAB). A key requirement is the availability of 2D-3D registration techniques that can deal with non-rigid motion and deformation. Image guidance for TECAB is mainly required before the mechanical stabilization of the heart, thus the most dominant source of non-rigid deformation is the motion of the beating heart. To augment the images in the endoscope of the da Vinci robot, we have to find the transformation from the coordinate system of the preoperative imaging modality to the system of the endoscopic cameras. In a first step we build a 4D motion model of the beating heart. Intraoperatively we can use the ECG or video processing to determine the phase of the cardiac cycle. We can then take the heart surface from the motion model and register it to the stereo-endoscopic images of the da Vinci robot using 2D-3D registration methods. We are investigating robust feature tracking and intensity-based methods for this purpose. Images of the vessels available in the preoperative coordinate system can then be transformed to the camera system and projected into the calibrated endoscope view using two video mixers with chroma keying. It is hoped that the augmented view can improve the efficiency of TECAB surgery and reduce the conversion rate to more conventional procedures.

  7. Geographical Information Systems and Dynamic Modeling via Agent Based Systems

    E-print Network

    de Figueiredo, Luiz Henrique

    Geographical Information Systems and Dynamic Modeling via Agent Based Systems Cláudio Antônio da fariasol@eng.uerj.br ABSTRACT A full integration among Geographical Information Systems and Agent Based integrated with Geographical Information Systems (GIS). The first one is the movement of pedestrians

  8. PRESIDNCIA DA REPBLICA CONTROLADORIA-GERAL DA UNIO

    E-print Network

    Maier, Rudolf Richard

    INTERNA . Em cumprimento à Instrução Normativa SFC n.º 2, de 24/12/2002, o Gestor encaminhou, por meio do meio do Ofício n.º 253, de 31/3/2008, o Relatório Anual de Atividades da Auditoria Interna - RAINT Auditoria Interna PAINT/FUB para o exercício de 2008 foi enviado a esta CGU-PR, por meio do Ofício nº 1163

  9. The Evolution of Dopamine Systems in Chordates

    PubMed Central

    Yamamoto, Kei; Vernier, Philippe

    2011-01-01

    Dopamine (DA) neurotransmission in the central nervous system (CNS) is found throughout chordates, and its emergence predates the divergence of chordates. Many of the molecular components of DA systems, such as biosynthetic enzymes, transporters, and receptors, are shared with those of other monoamine systems, suggesting the common origin of these systems. In the mammalian CNS, the DA neurotransmitter systems are diversified and serve for visual and olfactory perception, sensory–motor programming, motivation, memory, emotion, and endocrine regulations. Some of the functions are conserved among different vertebrate groups, while others are not, and this is reflected in the anatomical aspects of DA systems in the forebrain and midbrain. Recent findings concerning a second tyrosine hydroxylase gene (TH2) revealed new populations of DA-synthesizing cells, as evidenced in the periventricular hypothalamic zones of teleost fish. It is likely that the ancestor of vertebrates possessed TH2 DA-synthesizing cells, and the TH2 gene has been lost secondarily in placental mammals. All the vertebrates possess DA cells in the olfactory bulb, retina, and in the diencephalon. Midbrain DA cells are abundant in amniotes while absent in some groups, e.g., teleosts. Studies of protochordate DA cells suggest that the diencephalic DA cells were present before the divergence of the chordate lineage. In contrast, the midbrain cell populations have probably emerged in the vertebrate lineage following the development of the midbrain–hindbrain boundary. The functional flexibility of the DA systems, and the evolvability provided by duplication of the corresponding genes permitted a large diversification of these systems. These features were instrumental in the adaptation of brain functions to the very variable way of life of vertebrates. PMID:21483723

  10. An Architecture for Motion Capture Based Animation Fernando Wagner Serpa Vieira da Silva 1;2

    E-print Network

    de Figueiredo, Luiz Henrique

    An Architecture for Motion Capture Based Animation Fernando Wagner Serpa Vieira da Silva 1;2 Luiz animation systems, that works with several data formats and uses the building block paradigm for motion of the animation main elements. A prototype system has been implemented, based on the presented concepts, and its

  11. 32 CFR 505.3 - Privacy Act systems of records.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... records. (1) A system of records is a group of records under the control of a DA activity that are... Register in a system of records notice, which will provide the public an opportunity to comment before DA implements or changes the system. (3) The mere fact that records are retrievable by a name or...

  12. Seeking 'energy' vs. pain relief in spas in Brazil (Caldas da Imperatriz) and Portugal (Termas da Sulfurea).

    PubMed

    Quintela, Maria Manuel

    2011-04-01

    This paper is a comparative ethnography of the therapeutic practices at two different spa locations: Caldas da Imperatriz, SC, Brazil, and Termas da Sulfurea in Cabeco de Vide, Portugal. The comparison reveals the existence of contrasting 'explanatory models' held by the spa-goers as well as by the official medical systems. In the Portuguese context this model is highly medicalized; in the Brazilian case, spa treatments are viewed as 'alternative' or 'complementary' therapy and are also related to religious philosophies. Each model corresponds to a different idiom expressing certain experiences and world views, one focusing on 'pains' (dores) and the other on 'energy' (energia), the former leading to the rationale of 'curing', the latter to the notion of 'energizing'. In this paper the author intends to analyze and contrast the categories found in these models, which originate from different conceptions of health, illness and healing for Brazilian and Portuguese spa-goers. PMID:21563001

  13. SERVIO PBLICO FEDERAL MINISTRIO DA EDUCAO

    E-print Network

    Hanazaki, Natalia

    SERVIÇO PÚBLICO FEDERAL MINISTÉRIO DA EDUCAÇÃO UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE Psicossocial ­ Mestrado Profissional da Universidade Federal de Santa Catarina, atendendo ao disposto no item 2 atende ao item 3.8 do Edital) 9 20150004162 MARIANA VIDAL FOLTZ Homologada 10 20150003991 MAYARA MARIA

  14. SERVIO PBLICO FEDERAL MINISTRIO DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    SERVIÇO PÚBLICO FEDERAL MINISTÉRIO DA EDUCAÇÃO UNIVERSIDADE FEDERAL DE SANTA CATARINA PRÓ Docência (PIBID) da Universidade Federal de Santa Catarina, no uso de suas atribuições, torna público o Gabriela Nogueira de Souza 14102393 Classificada Ravi Sagae de Oliveira 15104819 Classificado Maria Paula

  15. Universidades nacionais a meio da tabela

    E-print Network

    Instituto de Sistemas e Robotica

    Universidades nacionais a meio da tabela no primeiro ranldng encomendado pela UE Ensino superior indicadores, as representantes por- tuguesas ficam a meio das tabelas do U-Multirank. Tanto a Católica como instituições nacionais acima do lugar 500 surgem mais uma vez a meio da tabela, entre a posição 388

  16. ANA TERESA FREITAS Fora da norma

    E-print Network

    Instituto de Sistemas e Robotica

    duas das áreas mais competitivas do momento: a biologia e a informática por sara sá m urante metade da biologia, em particular da genética, «onde nenhum projeto, hoje em dia, dispensa um especialista em, arregaçou as mangas e com outras duas sócias (Susa- na Santos, bióloga molecular, e Alexandra Fernandes

  17. Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN

    E-print Network

    Paraná, Universidade Federal do

    Conhecimento: Literatura de Língua Francesa Processo: 23075.070275/2015-27 Número de vagas: 01 (uma) Número Doutorado em Letras e Tese em Literatura de Expressão Francesa / Teoria da Literatura Francesa, ou Literatura Comparada Francófona, obtidos na forma da lei. Tipos de Provas: Escrita (classificatória e

  18. Current status of robotic surgery in Japan

    PubMed Central

    2015-01-01

    The da Vinci S surgical system (Intuitive Surgical) was approved as a medical device in 2009 by the Japanese Ministry of Health, Labour and Welfare. Robotic surgery has since been used in gastrointestinal, thoracic, gynecological, and urological surgeries. In April 2012, robotic-assisted laparoscopic radical prostatectomy (RALP) was first approved for insurance coverage. Since then, RALP has been increasingly used, with more than 3,000 RALP procedures performed by March 2013. By July 2014, 183 institutions in Japan had installed the da Vinci surgical system. Other types of robotic surgeries are not widespread because they are not covered by public health insurance. Clinical trials using robotic partial nephrectomy and robotic gastrectomy for renal and gastric cancers, respectively, have recently begun as advanced medical treatments to evaluate health insurance coverage. These procedures must be evaluated for efficacy and safety before being covered by public health insurance. Other types of robotic surgery are being evaluated in clinical studies. There are several challenges in robotic surgery, including accreditation, training, efficacy, and cost. The largest issue is the cost-benefit balance. In this review, the current situation and a prospective view of robotic surgery in Japan are discussed. PMID:25763120

  19. Current status of robotic surgery in Japan.

    PubMed

    Nishimura, Kazuo

    2015-03-01

    The da Vinci S surgical system (Intuitive Surgical) was approved as a medical device in 2009 by the Japanese Ministry of Health, Labour and Welfare. Robotic surgery has since been used in gastrointestinal, thoracic, gynecological, and urological surgeries. In April 2012, robotic-assisted laparoscopic radical prostatectomy (RALP) was first approved for insurance coverage. Since then, RALP has been increasingly used, with more than 3,000 RALP procedures performed by March 2013. By July 2014, 183 institutions in Japan had installed the da Vinci surgical system. Other types of robotic surgeries are not widespread because they are not covered by public health insurance. Clinical trials using robotic partial nephrectomy and robotic gastrectomy for renal and gastric cancers, respectively, have recently begun as advanced medical treatments to evaluate health insurance coverage. These procedures must be evaluated for efficacy and safety before being covered by public health insurance. Other types of robotic surgery are being evaluated in clinical studies. There are several challenges in robotic surgery, including accreditation, training, efficacy, and cost. The largest issue is the cost-benefit balance. In this review, the current situation and a prospective view of robotic surgery in Japan are discussed. PMID:25763120

  20. Robot assisted radical prostatectomy: how I do it. Part I: Patient preparation and positioning.

    PubMed

    Valdivieso, Roger F; Hueber, Pierre-Alain; Zorn, Kevin C

    2013-10-01

    Radical prostatectomy remains the standard treatment for long term cure of clinically localized prostate cancer, offering excellent oncologic outcomes, with cancer-specific survival approaching 95% at 15 years after surgery. The introduction of the "da Vinci Robotic Surgical System" (Intuitive Surgical, Sunnyvale, CA, USA) has been another important step toward a minimally invasive approach to radical prostatectomy. Technologic peculiarities, such as three-dimensional vision, wristed instrumentation with seven degrees of freedom of motion, lack of tremor, a 10x-magnification and a comfortable seated position for the surgeon has added value to the surgeon and patient. In this first part of a two article series, we describe preoperative patient preparation and positioning protocols for robot assisted radical prostatectomy (RARP) that are currently used in our institution (University of Montreal Hospital Center (CHUM)-Hopital St-Luc). We use the four-arm da Vinci Si Surgical System. Our experience with RARP is now over 250 cases with the senior surgeon having performed over 1200 RARPs and we have continually refined our technique to improve patient outcomes. PMID:24128839

  1. Next Generation PanDA Pilot for ATLAS and Other Experiments

    NASA Astrophysics Data System (ADS)

    Nilsson, P.; Barreiro Megino, F.; Caballero Bejar, J.; De, K.; Hover, J.; Love, P.; Maeno, T.; Medrano Llamas, R.; Walker, R.; Wenaus, T.; Atlas Collaboration

    2014-06-01

    The Production and Distributed Analysis system (PanDA) has been in use in the ATLAS Experiment since 2005. It uses a sophisticated pilot system to execute submitted jobs on the worker nodes. While originally designed for ATLAS, the PanDA Pilot has recently been refactored to facilitate use outside of ATLAS. Experiments are now handled as plug-ins such that a new PanDA Pilot user only has to implement a set of prototyped methods in the plug-in classes, and provide a script that configures and runs the experiment-specific payload. We will give an overview of the Next Generation PanDA Pilot system and will present major features and recent improvements including live user payload debugging, data access via the Federated XRootD system, stage-out to alternative storage elements, support for the new ATLAS DDM system (Rucio), and an improved integration with glExec, as well as a description of the experiment-specific plug-in classes. The performance of the pilot system in processing LHC data on the OSG, LCG and Nordugrid infrastructures used by ATLAS will also be presented. We will describe plans for future development on the time scale of the next few years.

  2. Synthesis and property of solvatochromic fluorophore based on D-?-A molecular system: 2-{[3-Cyano-4-( N-ethyl- N-(2-hydroxyethyl)amino)styryl]-5,5-dimethylfuran-2(5H)-ylidene}malononitrile dye

    NASA Astrophysics Data System (ADS)

    Son, Young-A.; Gwon, Seon-Yeong; Lee, Sue-Yoen; Kim, Sung-Hoon

    2010-01-01

    2-{[3-Cyano-4-( N-ethyl- N-(2-hydroxyethyl)amino)styryl]-5,5-dimethylfuran-2(5H)-ylidene}malononitrile styryl dye was prepared by the condensation of 4-[(2-hydroxy-ethyl)-methyl-amino]-benzaldehyde (donor moiety) with 2-cyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran (acceptor moiety). The corresponding design, synthesis and solvatochromic characteristics of the intramolecular charge-transfer (ICT) dye chromophore were discussed and determined. Optical properties such as absorption and fluorescence emission spectra were monitored in several solvent media with different polarity. In this determination, the prepared dye chromophore showed positive solvatochromism effect and the resulting solvatochromic characteristics were studied with semiempirical calculations. The energy potentials of this dye chromophore such as HOMO and LUMO values were calculated by computational simulation approaches using Material Studio 4.3. Furthermore, the functions as a molecular switching sensor with pH stimulation of alkali-acid addition were determined in DMSO, which was operated by deprotonation/protonation effects based on intramolecular charge-transfer system.

  3. Dopamine system: manager of neural pathways

    PubMed Central

    Hong, Simon

    2013-01-01

    There are a growing number of roles that midbrain dopamine (DA) neurons assume, such as, reward, aversion, alerting and vigor. Here I propose a theory that may be able to explain why the suggested functions of DA came about. It has been suggested that largely parallel cortico-basal ganglia-thalamo-cortico loops exist to control different aspects of behavior. I propose that (1) the midbrain DA system is organized in a similar manner, with different groups of DA neurons corresponding to these parallel neural pathways (NPs). The DA system can be viewed as the “manager” of these parallel NPs in that it recruits and activates only the task-relevant NPs when they are needed. It is likely that the functions of those NPs that have been consistently activated by the corresponding DA groups are facilitated. I also propose that (2) there are two levels of DA roles: the How and What roles. The How role is encoded in tonic and phasic DA neuron firing patterns and gives a directive to its target NP: how vigorously its function needs to be carried out. The tonic DA firing is to provide the needed level of DA in the target NPs to support their expected behavioral and mental functions; it is only when a sudden unexpected boost or suppression of activity is required by the relevant target NP that DA neurons in the corresponding NP act in a phasic manner. The What role is the implementational aspect of the role of DA in the target NP, such as binding to D1 receptors to boost working memory. This What aspect of DA explains why DA seems to assume different functions depending on the region of the brain in which it is involved. In terms of the role of the lateral habenula (LHb), the LHb is expected to suppress maladaptive behaviors and mental processes by controlling the DA system. The demand-based smart management by the DA system may have given animals an edge in evolution with adaptive behaviors and a better survival rate in resource-scarce situations. PMID:24367324

  4. Origin of the DA and non-DA white dwarf stars

    NASA Technical Reports Server (NTRS)

    Shipman, Harry L.

    1989-01-01

    Various proposals for the bifurcation of the white dwarf cooling sequence are reviewed. 'Primordial' theories, in which the basic bifurcation of the white dwarf sequence is rooted in events predating the white dwarf stage of stellar evolution, are discussed, along with the competing 'mixing' theories in which processes occurring during the white dwarf stage are responsible for the existence of DA or non-DA stars. A new proposal is suggested, representing a two-channel scenario. In the DA channel, some process reduces the hydrogen layer mass to the value of less than 10 to the -7th. The non-DA channel is similar to that in the primordial scenario. These considerations suggest that some mechanism operates in both channels to reduce the thickness of the outermost layer of the white dwarf. It is also noted that accretion from the interstellar medium has little to do with whether a particular white dwarf becomes a DA or a non-DA star.

  5. An Extension of PPLS-DA for Classification and Comparison to Ordinary PLS-DA

    PubMed Central

    Telaar, Anna; Liland, Kristian Hovde; Repsilber, Dirk; Nürnberg, Gerd

    2013-01-01

    Classification studies are widely applied, e.g. in biomedical research to classify objects/patients into predefined groups. The goal is to find a classification function/rule which assigns each object/patient to a unique group with the greatest possible accuracy (classification error). Especially in gene expression experiments often a lot of variables (genes) are measured for only few objects/patients. A suitable approach is the well-known method PLS-DA, which searches for a transformation to a lower dimensional space. Resulting new components are linear combinations of the original variables. An advancement of PLS-DA leads to PPLS-DA, introducing a so called ‘power parameter’, which is maximized towards the correlation between the components and the group-membership. We introduce an extension of PPLS-DA for optimizing this power parameter towards the final aim, namely towards a minimal classification error. We compare this new extension with the original PPLS-DA and also with the ordinary PLS-DA using simulated and experimental datasets. For the investigated data sets with weak linear dependency between features/variables, no improvement is shown for PPLS-DA and for the extensions compared to PLS-DA. A very weak linear dependency, a low proportion of differentially expressed genes for simulated data, does not lead to an improvement of PPLS-DA over PLS-DA, but our extension shows a lower prediction error. On the contrary, for the data set with strong between-feature collinearity and a low proportion of differentially expressed genes and a large total number of genes, the prediction error of PPLS-DA and the extensions is clearly lower than for PLS-DA. Moreover we compare these prediction results with results of support vector machines with linear kernel and linear discriminant analysis. PMID:23408965

  6. Performance of a 27 kDa Fasciola hepatica Antigen in the Diagnosis of Human Fascioliasis

    PubMed Central

    Shafiei, Reza; Sarkari, Bahador; Sadjjadi, Seyed Mahmoud

    2015-01-01

    Background: Serological diagnosis, based on antigenic fractions of the parasite can be used for the early diagnosis of human fascioliasis. The current study aimed to evaluate the efficacy of a 27 kDa immunodominant antigen of Fasciola hepatica adult worms, in an indirect enzyme-linked immunosorbent assay (ELISA) system for serological diagnosis of human fascioliasis. Materials and Methods: The immunodiagnosis of human fascioliasis, using a 27 kDa immunodominant antigen, purified from F. hepatica somatic antigens (SAs), was evaluated by Western blotting and ELISA with sera samples of human fascioliasis patients, healthy controls and patients with other parasitic infections. Results: Using western blotting, from 12 sera of fascioliasis patients, 11 sera (91.6%) detected the 27 kDa subunit. None of 30 samples from healthy controls or 32 sera from nonfascioliasis patients reacted with the 27 kDa antigen. Accordingly, sensitivity and specificity of the system was found to be 91.6% and 100%, respectively. The 27 kDa antigen was purified from the SAs and was used in an indirect ELISA system. Of 15 sera of fascioliasis patients, all (100%) were found to be positive by ELISA whereas only 4 cases (6.25%) of nonfascioliasis patients or healthy controls were false-positive by this system. Accordingly, the sensitivity and specificity of the test were 100% and 93.6%, respectively. Conclusion: Findings of this study demonstrated that both Western blotting and the indirect ELISA, based on the 27 kDa subunit of F. hepatica SA, are reliable methods for serodiagnosis of human fascioliasis. PMID:25949054

  7. Virtual reality robotic surgery simulation curriculum to teach robotic suturing: a randomized controlled trial.

    PubMed

    Kiely, Daniel J; Gotlieb, Walter H; Lau, Susie; Zeng, Xing; Samouelian, Vanessa; Ramanakumar, Agnihotram V; Zakrzewski, Helena; Brin, Sonya; Fraser, Shannon A; Korsieporn, Pira; Drudi, Laura; Press, Joshua Z

    2015-09-01

    The objective of this randomized, controlled trial was to assess whether voluntary participation in a proctored, proficiency-based, virtual reality robotic suturing curriculum using the da Vinci(®) Skills Simulator™ improves robotic suturing performance. Residents and attending surgeons were randomized to participation or non-participation during a 5 week training curriculum. Robotic suturing skills were evaluated before and after training using an inanimate vaginal cuff model, which participants sutured for 10 min using the da Vinci(®) Surgical System. Performances were videotaped, anonymized, and subsequently graded independently by three robotic surgeons. 27 participants were randomized. 23 of the 27 completed both the pre- and post-test, 13 in the training group and 10 in the control group. Mean training time in the intervention group was 238 ± 136 min (SD) over the 5 weeks. The primary outcome (improvement in GOALS+ score) and the secondary outcomes (improvement in GEARS, total knots, satisfactory knots, and the virtual reality suture sponge 1 task) were significantly greater in the training group than the control group in unadjusted analysis. After adjusting for lower baseline scores in the training group, improvement in the suture sponge 1 task remained significantly greater in the training group and a trend was demonstrated to greater improvement in the training group for the GOALS+ score, GEARS score, total knots, and satisfactory knots. PMID:26531197

  8. Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN

    E-print Network

    Paraná, Universidade Federal do

    Ministério da Educação UNIVERSIDADE FEDERAL DO PARANÁ Pró-Reitoria de Gestão de Pessoas EDITAL N: Planejamento e Administração Escolar Área de Conhecimento: Organização do Trabalho Pedagógico Processo nº

  9. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 nonagésima primeira reunião do Colegiado do Núcleo de, Giseli Day, Graziela Maria Beretta Lopez, Jodete Bayer6 Gomes Fullgraf, Márcia Regina Goulart da Silva

  10. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO;UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO INFANTIL-11-201128-11-201128-11-201128-11-2011ANTÔNIO MARIA MARÇAL TELO NUNES DA COSTAANTÔNIO MARIA MARÇAL TELO NUNES DA COSTAANTÔNIO MARIA MARÇAL TELO

  11. Analise Destendenciada das Flutuac~oes da Variabilidade da Frequ^encia Cardiaca: Melhorias e Aplicac~oes

    E-print Network

    Carvalho, João Luiz

    ´alise da variabilidade da frequ^encia card´iaca (HRV): permite detectar anormalidades no controle nervoso. Neste trabalho: Propomos melhorias no software que realiza a an´alise DFA da HRV (Figura 1) [3´alise destendenciada da HRV [3]. An´alise Destendenciada das Flutua¸c~oes 1) Obt´em-se o sinal de HRV (intervalos RR

  12. PanDA Pilot Submission using Condor-G: Experience and Improvements

    SciTech Connect

    Zhao X.; Hover John; Wlodek Tomasz; Wenaus Torre; Frey Jaime; Tannenbaum Todd; Livny Miron

    2011-01-01

    PanDA (Production and Distributed Analysis) is the workload management system of the ATLAS experiment, used to run managed production and user analysis jobs on the grid. As a late-binding, pilot-based system, the maintenance of a smooth and steady stream of pilot jobs to all grid sites is critical for PanDA operation. The ATLAS Computing Facility (ACF) at BNL, as the ATLAS Tier1 center in the US, operates the pilot submission systems for the US. This is done using the PanDA 'AutoPilot' scheduler component which submits pilot jobs via Condor-G, a grid job scheduling system developed at the University of Wisconsin-Madison. In this paper, we discuss the operation and performance of the Condor-G pilot submission at BNL, with emphasis on the challenges and issues encountered in the real grid production environment. With the close collaboration of Condor and PanDA teams, the scalability and stability of the overall system has been greatly improved over the last year. We review improvements made to Condor-G resulting from this collaboration, including isolation of site-based issues by running a separate Gridmanager for each remote site, introduction of the 'Nonessential' job attribute to allow Condor to optimize its behavior for the specific character of pilot jobs, better understanding and handling of the Gridmonitor process, as well as better scheduling in the PanDA pilot scheduler component. We will also cover the monitoring of the health of the system.

  13. PanDA Pilot Submission using Condor-G: Experience and Improvements

    NASA Astrophysics Data System (ADS)

    Zhao, Xin; Hover, John; Wlodek, Tomasz; Wenaus, Torre; Frey, Jaime; Tannenbaum, Todd; Livny, Miron; ATLAS Collaboration

    2011-12-01

    PanDA (Production and Distributed Analysis) is the workload management system of the ATLAS experiment, used to run managed production and user analysis jobs on the grid. As a late-binding, pilot-based system, the maintenance of a smooth and steady stream of pilot jobs to all grid sites is critical for PanDA operation. The ATLAS Computing Facility (ACF) at BNL, as the ATLAS Tier1 center in the US, operates the pilot submission systems for the US. This is done using the PanDA "AutoPilot" scheduler component which submits pilot jobs via Condor-G, a grid job scheduling system developed at the University of Wisconsin-Madison. In this paper, we discuss the operation and performance of the Condor-G pilot submission at BNL, with emphasis on the challenges and issues encountered in the real grid production environment. With the close collaboration of Condor and PanDA teams, the scalability and stability of the overall system has been greatly improved over the last year. We review improvements made to Condor-G resulting from this collaboration, including isolation of site-based issues by running a separate Gridmanager for each remote site, introduction of the 'Nonessential' job attribute to allow Condor to optimize its behavior for the specific character of pilot jobs, better understanding and handling of the Gridmonitor process, as well as better scheduling in the PanDA pilot scheduler component. We will also cover the monitoring of the health of the system.

  14. A Integracao de Ensino das Ciencias da Saude (An Integrated Medical Education Program [in Brazil]).

    ERIC Educational Resources Information Center

    Pourchet-Campos, M. A.; Guimaraes Junior, Paulino

    At the Sixth Annual Reunion of the Brazilian Association of Medical Schools (VI Reuniao Anual da Associacao Brasileira de Escolas Medicas) leaders in the Brazilian medical profession proposed an integrated educational program for training students in the fields of medicine and public health. Under Brazil's present system of education, all…

  15. Roles of upper-level processes in tropical cyclogenesis Da-Lin Zhang1

    E-print Network

    Zhang, Da-Lin

    Roles of upper-level processes in tropical cyclogenesis Da-Lin Zhang1 and Lin Zhu1 Received 16 July and prediction of TCG. Citation: Zhang, D.-L., and L. Zhu (2012), Roles of upper-level processes in tropical and Zhang, 2008], and mesoscale convective systems (MCSs) [Zhang and Bao, 1996a, 1996b; Zhang et al., 2011

  16. An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA1;2

    E-print Network

    de Figueiredo, Luiz Henrique

    An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA1;2 LUIZ VELHO1 PAULO Abstract. This paper proposes an architecture for motion capture based animation systems, which works interface is proposed to perform an intuitive visualization of the animation main elements. A prototype

  17. An Architecture for Motion Capture Based Animation Fernando Wagner da Silva 1,2

    E-print Network

    de Figueiredo, Luiz Henrique

    An Architecture for Motion Capture Based Animation Fernando Wagner da Silva 1,2 Luiz Velho 1 Paulo Postal 68511 Abstract. This paper proposes an architecture for motion capture based animation systems operations. Also, a user interface is proposed to perform an intuitive visualization of the animation main

  18. An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA 1;2

    E-print Network

    de Figueiredo, Luiz Henrique

    An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA 1;2 LUIZ VELHO 1 PAULO 68511 Abstract. This paper proposes an architecture for motion capture based animation systems, which. Also, a user interface is proposed to perform an intuitive visualization of the animation main elements

  19. Data Aggregation in Multi-Agent Systems in the Presence of Hybrid Faults

    ERIC Educational Resources Information Center

    Srinivasan, Satish Mahadevan

    2010-01-01

    Data Aggregation (DA) is a set of functions that provide components of a distributed system access to global information for purposes of network management and user services. With the diverse new capabilities that networks can provide, applicability of DA is growing. DA is useful in dealing with multi-value domain information and often requires…

  20. Da necessidade de princpios de Arquitetura da Informao para a Internet das Coisas

    E-print Network

    Floeter, Sergio Ricardo

    principles to the Internet of Things This article analyzes Internet of Things (IoT) scenario and its impacts Architecture; Internet of Things; Information ecosystems. Recebido em 09.03.2015 Aceito em 06.05.2015 1Da necessidade de princípios de Arquitetura da Informação para a Internet das Coisas Flavia Lacerda

  1. Orbital Period of SDSSJ0256 (a DA + M Binary System)

    NASA Astrophysics Data System (ADS)

    Gilfrich, Christine

    2013-01-01

    Studying WD+M binaries can give insight into the evolution of cataclysmic variables because of their presence in CVs' evolutionary process. SDSSJ0256 is a WD + M binary found in the SLOAN Digital Sky Survey which has not previously been studied; the SLOAN data does not include an orbital period. I used spectroscopic data from the Goodman Spectrograph on SOAR collected at various dates to find the changes in H- ? emission lines from the main sequence star throughout its orbit. From these wavelengths, I calculated the velocities, which were analyzed using a Lomb-Scargle periodogram to find SDSSJ0256's orbital period to be 2.6 hours (with a false-positive probability of 10%), its radial velocity semi-amplitude to be 32 ± 5 km/s, and its gamma velocity to be 19 ± 4 km/s. We compared this to other possible periods from the Lomb-Scargle periodogram using their power, false-positive probability as outlined by Frescura et al (2008), and ?2 testing. Although the fit to our data is far from perfect, the phase diagram shows a reasonably close trend. As such, this study points to an orbital period of approximately 2.6 hours for SDSSJ0256, to be made more certain by additional observations.

  2. IDENTIFICATION OF SUBPART DA SOURCES AND EPA (ENVIRONMENTAL PROTECTION AGENCY) REGIONAL/STATE AGENCY CONTACTS FOR THE IMPLEMENTATION OF APPENDIX F: PROCEDURE 1

    EPA Science Inventory

    Appendix F, Procedure 1, 'Quality Assurance Requirements for Gaseous Continuous Emission Monitoring Systems Used for Compliance', of 40 CFR 60 requires that sources subject to Standards of Performance for New Stationary Sources, Subpart Da conduct certain quality assurance activi...

  3. The spinning-top Be star Achernar from VLTI-VINCI

    E-print Network

    A. Domiciano de Souza; P. Kervella; S. Jankov; L. Abe; F. Vakili; E. di Folco; F. Paresce

    2003-06-13

    We report here the first observations of a rapidly rotating Be star, $\\alpha$ Eridani, using Earth-rotation synthesis on the Very Large Telescope (VLT) Interferometer. Our measures correspond to a $2a/2b = 1.56\\pm0.05$ apparent oblate star, $2a$ and $2b$ being the equivalent uniform disc angular diameters in the equatorial and polar direction. Considering the presence of a circumstellar envelope (CSE) we argue that our measurement corresponds to a truly distorted star since $\\alpha$ Eridani exhibited negligible H$\\alpha$ emission during the interferometric observations. In this framework we conclude that the commonly adopted Roche approximation (uniform rotation and centrally condensed mass) should not apply to $\\alpha$ Eridani. This result opens new perspectives to basic astrophysical problems, such as rotationally enhanced mass loss and internal angular momentum distribution. In addition to its intimate relation with magnetism and pulsation, rapid rotation thus provides a key to the Be phenomenon: one of the outstanding non-resolved problems in stellar physics.

  4. The "tobacco mosaic virus" 126-kDa protein associated with virus replication and movement suppresses RNA silencing

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Systemic symptoms induced on "Nicotiana tabacum" cv. Xanthi by "Tobacco mosaic virus" (TMV) are modulated by one or both amino-coterminal viral 126- and 183-kDa proteins, proteins involved in virus replication and cell-to-cell movement. Here we compare the systemic accumulation and gene silencing c...

  5. Is the geological past a key to the (near) future

    SciTech Connect

    Culotta, E.

    1993-02-12

    Ever since Leonardo da Vinci unearthed beds of fossil marine shells in the Tuscan hills, the record of the past has been challenging conventional theories of climate. Sages of da Vinci's day had a proper explanation for the shells. The clams and snails had drifted into the hills with the waters of the Biblical Flood. But da Vinci didn't think the climatic event chronicled in Genesis could explain the evidence. How, he wondered, could these largely sedentary mollusks have traveled so far in merely 40 days He concluded that the received wisdom was wrong: The marine organisms had lived and died in a vanished sea, just where he found them. But, perhaps fearing papal displeasure, he never published his conclusions.

  6. The Supernova Impostor SN 2010da

    NASA Astrophysics Data System (ADS)

    Binder, Breanna A.; Williams, Benjamin F.; Kong, Albert K. H.; Plucinsky, Paul P.; Gaetz, Terrance J.; Skillman, Evan D.; Dolphin, Andrew E.

    2016-01-01

    Supernova impostors are optical transients that, despite being assigned a supernova designation, do not signal the death of a massive star or accreting white dwarf. Instead, many impostors are thought to be major eruptions from luminous blue variables. Although the physical cause of these eruptions is still debated, tidal interactions from a binary companion has recently gained traction as a possible explanation for observations of some supernova impostors. In this talk, I will discuss the particularly interesting impostor SN 2010da, which exhibits high-luminosity, variable X-ray emission. The X-ray emission is consistent with accretion onto a neutron star, making SN 2010da a likely high mass X-ray binary in addition to a supernova impostor. SN 2010da is a unique laboratory for understanding both binary interactions as drivers of massive star eruptions and the evolutionary processes that create high mass X-ray binaries.

  7. The Extended Amygdala and the Dopamine System: Another Piece of the Dopamine Puzzle

    PubMed Central

    Fudge, Julie L.; Emiliano, Ana B.

    2008-01-01

    The dopamine system (DA) has long been associated with the pathophysiology of psychosis. The DA theory of schizophrenia continues to find support in neuroreceptor imaging and ligand-binding studies that show excess DA transmission in patients, as compared to controls. The pathways which regulate the primate DA system, however, have yet to be fully elucidated. The amygdala, including its extended amygdala component, is involved in evaluating the emotional value of sensory stimuli. Since emotionally relevant sensory stimuli are distorted during psychotic episodes, we hypothesize that amygdaloid influences are likely to be significant modulators of the DA system. We reviewed evidence for direct projections from the central extended amygdala to specific subpopulations of DA neurons, and we discussed how these pathways may serve as important conduits of emotionally relevant information that can have immediate and long-term effects on DA regulation. PMID:12928506

  8. 77 FR 28797 - Redundancy of Communications Systems: Backup Power Private Land Mobile Radio Services: Selection...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-16

    ...FEDERAL COMMUNICATIONS COMMISSION 47 CFR Parts 12 and 90 [DA 11-1838] Redundancy of Communications Systems: Backup Power Private...EA Licensing AGENCY: Federal Communications Commission. ACTION:...

  9. The roles of the reward system in sleep and dreaming.

    PubMed

    Perogamvros, Lampros; Schwartz, Sophie

    2012-09-01

    The mesolimbic dopaminergic system (ML-DA) allows adapted interactions with the environment and is therefore of critical significance for the individual's survival. The ML-DA system is implicated in reward and emotional functions, and it is perturbed in schizophrenia, addiction, and depression. The ML-DA reward system is not only recruited during wakeful behaviors, it is also active during sleep. Here, we introduce the Reward Activation Model (RAM) for sleep and dreaming, according to which activation of the ML-DA reward system during sleep contributes to memory processes, to the regulation of rapid-eye movement (REM) sleep, and to the generation and motivational content of dreams. In particular, the engagement of ML-DA and associated limbic structures prioritizes information with high emotional or motivational relevance for (re)processing during sleep and dreaming. The RAM provides testable predictions and has clinical implications for our understanding of the pathogenesis of major depression and addiction. PMID:22669078

  10. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Professoras Sonia Maria Jordão de Castro e Regina Ingrid Bragagnolo 3. Assunto: Apresentação da Proposta de

  11. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO ADMINISTRATIVO S 1 - ISADORA BINOTTO GUIMARÃES GRUPO 4 ­ ESTUDANTES 1 ­ GABRIELA MARIA GOSSLER RODRIGUES DA SILVA

  12. "O financiamento da Cincia pretende garantir o

    E-print Network

    Instituto de Sistemas e Robotica

    acusado de estar a cortar no dinheiro para a Ciência. A secretária de Estado nega. Não houve mostra os valores que provam que o sistema tem recebido mais dinheiro. Porém, a secretária de Estado da Ciên- cia reconhece mudanças nos critérios de financiamento. Há menos dinheiro para bolsas e mais para

  13. The FINUDA experiment at DA?NE

    NASA Astrophysics Data System (ADS)

    Agnello, M.; Amaudruz, P. A.; Beer, G.; Benussi, L.; Bertani, M.; Bianco, S.; Botta, E.; Bressani, T.; Busso, I.; Calvo, D.; Camerini, P.; Celano, L.; Cerello, P.; D'Erasmo, G.; Fabbri, F. L.; Feliciello, A.; Filippi, A.; Filippini, V.; Fiore, E. M.; Fiore, L.; Gianotti, P.; Giardoni, M.; Gill, D. R.; Grion, N.; Guaraldo, C.; Headon, R.; Iazzi, F.; Lanaro, A.; Lee, L.; Lucherini, V.; Marcello, S.; Marciano, G.; Minetti, B.; Mirfakhrai, N.; Morra, O.; Nozdrin, A. A.; Olin, A.; Pantaleo, A.; Paticchio, V.; Raimondo, A.; Rossetto, E.; Rotondi, A.; Rui, R.; Salvini, P.; Sarwar, S.; Serdyuk, V.; Smith, G.; Venturelli, L.; Yen, S.; Zenoni, A.

    1997-02-01

    FINUDA is a large acceptance, high resolution magnetic spectrometer dedicated to hypernuclear physics. The experiment is in an advanced stage of construction and will run in 1997 at DA?NE, the Frascati o-Factory. Motivations, physics goals and expected performance are illustrated.

  14. The Finuda Experiment at DA?NE

    NASA Astrophysics Data System (ADS)

    Bressani, T.; Bergo, D.; Botta, E.; Busso, L.; Calvo, D.; Cerello, P.; Feliciello, A.; Filippi, A.; Marcello, S.; Morra, O.; Panzarasa, A.; Raimondo, A.; Agnello, M.; Iazzi, F.; Minetti, B.; Celano, L.; D'Erasmo, G.; Fiore, E. M.; Fiore, L.; Pantaleo, A.; Paticchio, V.; Tagliente, G.; Bianconi, A.; Bonomi, G.; Venturelli, L.; Zenoni, A.; Benussi, L.; Bertani, M.; Bianco, S.; Fabbri, F. L.; Gianotti, P.; Giardoni, M.; Lucherini, V.; Pace, E.; Pallotta, M.; Sarwar, S.; Serdyuk, V.; Trasatti, L.; Filippini, V.; Marchesotti, M.; Marciano, G.; Rotondi, A.; Mirfakhrai, N.; Bottan, P.; Camerini, P.; Grion, N.; Rui, R.; Wheadon, R.; Amaudruz, P.; Beer, G.; Olin, A.

    2000-09-01

    The FINUDA experiment at DA?NE, the recently commissioned Frascati ?-Factory, is now ready to start the data taking. Main expected performances of the detector are reviewed. The initial physics program, aiming to study the spectroscopy and the decay of Hypernuclei formed following K- capture at rest, is described. Further developement of the detector capabilities are outlined.

  15. Dilma Vana Rousseff Presidenta da Repblica

    E-print Network

    Maier, Rudolf Richard

    Toledo Camargo Vice-Reitora: Profª. Sônia Nair Báo Decano de Ensino de Graduação: Prof. Mauro Luiz Rabelo Universitário Darcy Ribeiro ­ Asa Norte Prédio da Reitoria, bloco B, 1º andar CEP: 70910-900 Brasília-DF, Brasil Projeto Gráfico, Editoração Eletrônica e Capa: Mauro Pereira Bento #12;Relatório de Gestão 2012 Gestores

  16. Ministrio da Educao Secretaria de Educao Superior

    E-print Network

    Maier, Rudolf Richard

    Toledo Camargo Vice-Reitora: Profª. Sônia Nair Báo Decano de Ensino de Graduação: Prof. Mauro Luiz Rabelo ­ Asa Norte Prédio da Reitoria, Bloco B, 1º andar CEP: 70910-900 Brasília-DF, Brasil Telefones: (61 Alves de Faria Decanato de Ensino de Graduação DEG Prof. Mauro Luiz Rabelo Decanato de Pesquisa e Pós

  17. Ministrio da Educao Secretaria de Educao Superior

    E-print Network

    Maier, Rudolf Richard

    Superior UNIVERSIDADE DE BRASÍLIA Reitor: Prof. Ivan Marques de Toledo Camargo Vice-Reitora: Profª. Sônia Nair Báo Decano de Ensino de Graduação: Prof. Mauro Luiz Rabelo Decano de Pesquisa e Pós Universitário Darcy Ribeiro ­ Asa Norte Prédio da Reitoria, Bloco B, 1º andar CEP: 70910-900 Brasília-DF, Brasil

  18. Jeronimo Gomes Da Silva Neto Curriculum Vitae

    E-print Network

    Hopkins, William A.

    , U.S. Fish and Wildlife Service Back Bay National Wildlife Refuge, VA. May 2013 ­ September 2013 LeadJeronimo Gomes Da Silva Neto Curriculum Vitae Hellbender Field Technician Wildlife Ecotoxicology and Physiology Ecology Program Department of Fish and Wildlife Conservation, Virginia Tech, VA EDUCATION Virginia

  19. Estudo da Influncia de Seqncias Polipeptdicas e

    E-print Network

    Neshich, Goran

    no ASTRAL SCOP Genetic Domain Sequence (Brenner et al., 2000) que é derivada da base de dados PDB SEQRES. Foram então escolhidos três bancos de dados com diferentes níveis de similaridade: ASTRAL SCOP 10, ASTRAL SCOP 40 e ASTRAL SCOP 70, com valores máximos de 10

  20. Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN

    E-print Network

    Paraná, Universidade Federal do

    Departamento de Linguística, Letras Clássicas e Vernáculas Área de Conhecimento: Literatura Brasileira Matéria Específica: Literatura Brasileira e Teoria da Literatura Processo: 23075.115067/2011-31 Número de Vagas: 01

  1. Ministrio da Educao Universidade Federal do Paran

    E-print Network

    Paraná, Universidade Federal do

    (Depto/Setor) Departamento de Biologia Celular - Setor Ciências Biológicas Área temática do Programa desenvolvidas As atividades internas serão realizadas no Depto de Biologia Celular - BL da UFPR e as atividades Departamento de Biologia Celular E-mail: marmend@ufpr.br (preferencialmente) Seleção Data: 05/06/2013 Local

  2. Maria Adelaide Amaral ou a Crise da Classe Média Brasileira

    E-print Network

    Ravetti, Graciela; Rojo, Sara

    1996-10-01

    Adelaide Amaral ou a Crise da Classe Média Brasileira Graciela Ravetti e Sara Rojo INTRODUÇÃO l. A família Quando entramos em contato com a produção dramática da escritora brasileira Maria Adelaide Amaral, mergulhamos no mundo privado da classe média... limite do privado, romper com a imagem do amor cor de rosa ou dos anúncios publicitários que se valem da família feliz para vender carros. A obra entra nas lutas internas do poder, nas pequenas ou grandes maldades, nas pessoas asfixiadas pela repressão...

  3. A Day in the Life at DaVita Academy

    ERIC Educational Resources Information Center

    Weinstein, Margery

    2010-01-01

    When a company name means "giving life," the bar for learning and development programs is held high. In this article, the author describes what it takes to graduate from DaVita Academy, the soft skills training program dialysis services company DaVita offers all its employees. DaVita's chief executive officer, Kent Thiry, states that the Academy…

  4. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 nonagésima quinta reunião, do Colegiado do Núcleo de Maria8 Beretta Lopez, Jodete Bayer Gomes Fülgraff, Josiana Piccoli, Juliane Mendes Rosa La9 Banca

  5. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 sétima reunião Sônia5 Maria Jordão de Castro; as professoras efetivas: Carolina Shimomura Spinelli, Débora6 Cristina de

  6. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 octogésima nona reunião do Colegiado do Núcleo de Maria Beretta Lopez, Sonia Mary Valente8 Bayestorff, Caroline Machado Momm, Regina Ingrid Bragagnolo

  7. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Funcional Horizontal da Profª Sonia Maria Jordão de Castro classe DIV para classe DIV nível 1. Relatora da Profª Sonia Maria Jordão de Castro classe DIV nível 1 para classe DIV nível 2. Relatora: Profª

  8. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 oitava reunião Sônia Maria5 Jordão de Castro; as professoras efetivas: Carolina Shimomura Spinelli, Débora Cristina de6

  9. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 nonagésima segunda reunião do Colegiado do Núcleo de, Giseli Day, Giandréa Reuss Strenzel, Graziela Maria6 Beretta Lopez, Jodete Bayer Gomes Fullgraf, Josiana

  10. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 décima reunião do e de5 Pesquisa: Sônia Maria Jordão de Castro; as Professoras Efetivas: Caroline Machado6 Momm

  11. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Hanazaki, Natalia

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO COLÉGIO DE APLICAÇÃO Educação da Universidade Federal de Santa Catarina, no uso de suas atribuições e, tendo em vista o que ­ Maria Eduarda Marinho de Souza inscrição 201 ­ nascimento 06/01/2000 7 ­ Amanda Juliana Schutz da Costa

  12. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 quarta reunião Sônia5 Maria Jordão de Castro; as professoras efetivas: Caroline Machado Momm, Carolina6 Shimomura

  13. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 nonagésima reunião do Colegiado do Núcleo de Gomes Fulgraff, Sônia Maria Jordão de Castro, Giandrea7 Reuss Strenzel, Graziela Maria Beretta Lopez

  14. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 octogésima nona (B) reunião do Colegiado do Núcleo de Maria Beretta Lopez, Rose Elaine Waltrick,7 Caroline Machado Momm, Regina Ingrid Bragagnolo, Soraya

  15. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 nonagésima terceira reunião do Colegiado do Núcleo de Cristina de Sampaio Peixe, Eloisa Raquel de6 Oliveira, Giseli Day, Giandréa Reuss Strenzel, Graziela Maria

  16. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 décima quarta reunião; a Coordenadora5 Pedagógica e de Pesquisa: Sônia Maria Jordão de Castro; as Professoras Efetivas: Caroline6

  17. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Graziela Maria Beretta López 4. Assunto: Estágio Probatório (2º sem.) da Profª Regina Ingrid Bragagnolo Relatora: Profª Sonia Maria Jordão Castro 5. Assunto: Estágio Probatório (2º sem.) da Profª Débora Cristina

  18. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 décima terceira; a Coordenadora5 Pedagógica e de Pesquisa: Sônia Maria Jordão de Castro; as Professoras Efetivas: Caroline6

  19. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 nona reunião do; a Coordenadora5 Pedagógica e de Pesquisa: Sônia Maria Jordão de Castro; as Professoras Efetivas: Carolina6

  20. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Catarina, Centro de Ciências da Educação. Ata da1 nonagésima quarta sessão, extraordinária, do Colegiado do, Giandréa Reuss Strenzel,8 Graziela Maria Beretta López, Jodete Bayer Gommes Fullgraf, Josiana Piccolli

  1. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 décima primeira Waltrick; a Coordenadora5 Pedagógica e de Pesquisa: Sônia Maria Jordão de Castro; as Professoras Efetivas

  2. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Ata da centésima1 décima segunda; a Coordenadora5 Pedagógica e de Pesquisa: Sônia Maria Jordão de Castro; as Professoras Efetivas: Caroline6

  3. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO profª Sonia Maria Jordão de Castro da Classe D3 Nível 3 para Classe D3 Nível 4. Relatora: presidente da comissão Profª Graziela Maria Beretta López 5. Apreciação e aprovação do processo de progressão funcional

  4. Universidade Federal de Santa Catarina Centro de Cincias da Sade

    E-print Network

    Hanazaki, Natalia

    dezembro de 2012, às 08h30min, na sala de aula da UTI- Hospital Universitário - HU. 2.3-Data da seleção: 13 de dezembro de 2012, às 08h00min, na sala de aula da UTI- Hospital Universitário - HU. O Resultado do

  5. Universidade Federal de Santa Catarina Centro de Cincias da Sade

    E-print Network

    Hanazaki, Natalia

    : 6 de dezembro de 2012, às 08h30min, na sala de aula da UTI- Hospital Universitário - HU. Leia-se: 2.3-Data da seleção: 13 de dezembro de 2012, às 08h00min, na sala de aula da UTI- Hospital Universitário

  6. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA SADE

    E-print Network

    Hanazaki, Natalia

    aula da UTI- Hospital Universitário - HU Leia-se: 2.3-Data da seleção: 15 e 16 de dezembro de 2014, às 08h00min, na sala de aula da UTI- Hospital Universitário ­ HU. OBS.: A definição de data que cada

  7. Agarose and Polyacrylamide Gel Electrophoresis Methods for Molecular Mass Analysis of 5–500 kDa Hyaluronan

    PubMed Central

    Bhilocha, Shardul; Amin, Ripal; Pandya, Monika; Yuan, Han; Tank, Mihir; LoBello, Jaclyn; Shytuhina, Anastasia; Wang, Wenlan; Wisniewski, Hans-Georg; de la Motte, Carol; Cowman, Mary K.

    2011-01-01

    Agarose and polyacrylamide gel electrophoresis systems for the molecular mass-dependent separation of hyaluronan (HA) in the size range of approximately 5–500 kDa have been investigated. For agarose-based systems, the suitability of different agarose types, agarose concentrations, and buffers systems were determined. Using chemoenzymatically synthesized HA standards of low polydispersity, the molecular mass range was determined for each gel composition, over which the relationship between HA mobility and logarithm of the molecular mass was linear. Excellent linear calibration was obtained for HA molecular mass as low as approximately 9 kDa in agarose gels. For higher resolution separation, and for extension to molecular masses as low as approximately 5 kDa, gradient polyacrylamide gels were superior. Densitometric scanning of stained gels allowed analysis of the range of molecular masses present in a sample, and calculation of weight-average and number-average values. The methods were validated for polydisperse HA samples with viscosity-average molecular masses of 112, 59, 37, and 22 kDa, at sample loads of 0.5 µg (for polyacrylamide) to 2.5 µg (for agarose). Use of the methods for electrophoretic mobility shift assays was demonstrated for binding of the HA-binding region of aggrecan (recombinant human aggrecan G1-IGD-G2 domains) to a 150 kDa HA standard. PMID:21684248

  8. Urologic robotic surgery in Korea: Past and present

    PubMed Central

    2015-01-01

    Since 2005 when the da Vinci surgical system was approved as a medical device by the Korean Ministry of Health and Welfare, 51 systems have been installed in 40 institutions as of May 2015. Although robotic surgery is not covered by the national health insurance service in Korea, it has been used in several urologic fields as a less invasive surgery. Since the first robotic-assisted laparoscopic radical prostatectomy in 2005, partial nephrectomy, radical cystectomy, pyeloplasty, and other urologic surgeries have been performed. The following should be considered to extend the indications for robotic surgery: training systems including accreditation, operative outcomes from follow-up results, and cost-effectiveness. In this review, the history and current status of robotic surgeries in Korea are presented. PMID:26279823

  9. Control of a human-powered helicopter in hover

    NASA Technical Reports Server (NTRS)

    Totah, Joseph J.; Patterson, William

    1988-01-01

    The study of a control system for the Da Vinci 2 human-powered helicopter in hovering flight is documented. This helicopter has two very large, slowly rotating rotor blades and is considered to be unstable in hover. The control system is designed to introduce stability in hover by maintaining level rotors through the use of rotor tip mounted control surfaces. A five degree of freedom kinematic model was developed to study this control system and is documented. Results of this study show that the unaugmented configuration is unstable due to the large Lock Number, and the augmented configuration is stable. The role of NASA in this study included the development and analysis of the kinematic model and control laws. Both analytical and numerical techniques were used.

  10. Discriminant forest classification method and system

    DOEpatents

    Chen, Barry Y.; Hanley, William G.; Lemmond, Tracy D.; Hiller, Lawrence J.; Knapp, David A.; Mugge, Marshall J.

    2012-11-06

    A hybrid machine learning methodology and system for classification that combines classical random forest (RF) methodology with discriminant analysis (DA) techniques to provide enhanced classification capability. A DA technique which uses feature measurements of an object to predict its class membership, such as linear discriminant analysis (LDA) or Andersen-Bahadur linear discriminant technique (AB), is used to split the data at each node in each of its classification trees to train and grow the trees and the forest. When training is finished, a set of n DA-based decision trees of a discriminant forest is produced for use in predicting the classification of new samples of unknown class.

  11. MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO PARAN

    E-print Network

    Paraná, Universidade Federal do

    Programas e Projetos de Extensão 2015. A Universidade Federal do Paraná (UFPR), por meio da Pró-Reitoria de para produção de biodiesel metílico, uma integração universidade, escola, comunidade e meio 3 Colheita meio ambiente 2 Direito e Cidadania: a luta pela moradia 3 Divulgando a informação técnica e

  12. Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN

    E-print Network

    Paraná, Universidade Federal do

    Departamento de Linguística, Letras Clássicas e Vernáculas Área de Conhecimento: Teoria Literária e Literatura Brasileira Matéria Específica: Teoria da Literatura; Literatura Brasileiras I, II, III e IV; Leitura e literatura na escola Processo: 23075. 046186/2013-06 Número de Vagas: 01 (uma) N.º DE ORDEM NOME M�DIA 01

  13. A Influência da Escola e da Mídia na Obtenção dos Conhecimentos Astronômicos

    NASA Astrophysics Data System (ADS)

    da Cunha, W. S.; Voelzke, M. R.; Amaral, L. H.

    2006-08-01

    O universo em que vivemos possui segredos jamais imaginados pelo homem, fruto da pequena proporção que ocupamos diante de um cosmos infinito. A astronomia funciona como um instrumento que sacia a sede humana em desvendar esses segredos, estudando as galáxias, quasares, pulsares além da existência de todos os elementos que preenchem o espaço cósmico, o vácuo, não mais vazio como se pensou em outros tempos. A mídia explora esse campo de forma mística e também científica. A difusão adequada e dentro dos padrões educacionais vigentes, de conceitos astronômicos, se faz necessária, devido sua presença nos conteúdos escolares, centros de ciência e na mídia, de modo geral. A reforma do Currículo Básico da Escola Pública da maioria dos Estados brasileiros introduziu conceitos astronômicos desde a pré-escola até o Ensino Médio. Num estudo realizado com 1.032 alunos do Ensino Médio de seis escolas estaduais, revelou-se através da aplicação de um questionário que abordava conheciment os básicos em astronomia, como estes foram adquiridos e qual era a infra-estrutura oferecida pela escola: para 66,2% dos entrevistados o professor já fez alguma apresentação a respeito de astronomia. O presente estudo revelou também que 44,5% dos alunos entrevistados adquiriram seus conhecimentos astronômicos na escola, 28,1% através da televisão e 27,4% afirmaram que seus conhecimentos foram obtidos através de outros tipos de mídia (internet, filmes e revistas). Embora o estudo revele claramente que há certo equilíbrio na forma em que os alunos obtiveram seus conhecimentos astronômicos, a mídia ainda explora e muitas vezes desperta o interesse pela astronomia com assuntos que não fazem parte de nosso cotidiano como, por exemplo, o homem na Lua, os projetos espaciais e a primeira viagem de um astronauta brasileiro no espaço. Porém, em certos casos, a mídia pode promover conhecimentos incompletos ou mesmo equivocados sobre os conceitos que envolvam a astronomia, como por exemplo a propagação do som no vácuo observado na maioria dos filmes de f icção científica ou da existência das estações do ano em função da distância da Terra ao Sol, em conformidade com o questionário aplicado.

  14. Image guidance for robotic minimally invasive coronary artery bypass.

    PubMed

    Figl, Michael; Rueckert, Daniel; Hawkes, David; Casula, Roberto; Hu, Mingxing; Pedro, Ose; Zhang, Dong Ping; Penney, Graeme; Bello, Fernando; Edwards, Philip

    2010-01-01

    A novel system for image guidance in totally endoscopic coronary artery bypass (TECAB) is presented. Key requirement is the availability of 2D-3D registration techniques that can deal with non-rigid motion and deformation. Image guidance for TECAB is mainly required before the mechanical stabilisation of the heart, when the most dominant source of misregistration is the deformation and non-rigid motion of the heart. To augment the images in the endoscope of the da Vinci robot, we have to find the transformation from the coordinate system of the preoperative imaging modality to the system of the endoscopic cameras. In a first step we build a 4D motion model of the beating heart. Intraoperatively we can use the ECG or video processing to determine the phase of the cardiac cycle, as well as the heart and respiratory frequencies. We then take the heart surface from the motion model and register it to the stereo endoscopic images of the da Vinci robot resp. of a validation system using photo-consistency. To take advantage of the fact that there is a whole image sequence available for registration, we use the different phases together to get the registration. We found the similarity function to be much smoother when using more phases. This also showed promising behaviour in convergence tests. Images of the vessels available in the preoperative coordinate system can then be transformed to the camera system and projected into the calibrated endoscope view using two video mixers with chroma keying. It is hoped that the augmented view can improve the efficiency of TECAB surgery and reduce the conversion rate to more conventional procedures. PMID:19773147

  15. PanDA: A New Paradigm for Distributed Computing in HEP Through the Lens of ATLAS and other Experiments

    E-print Network

    De, K; The ATLAS collaboration; Maeno, T; Nilsson, P; Wenaus, T

    2014-01-01

    Experiments at the Large Hadron Collider (LHC) face unprecedented computing challenges. Heterogeneous resources are distributed worldwide, thousands of physicists analyzing the data need remote access to hundreds of computing sites, the volume of processed data is beyond the exabyte scale, and data processing requires more than a billion hours of computing usage per year. The PanDA (Production and Distributed Analysis) system was developed to meet the scale and complexity of LHC distributed computing for the ATLAS experiment. In the process, the old batch job paradigm of computing in HEP was discarded in favor of a far more flexible and scalable model. The success of PanDA in ATLAS is leading to widespread adoption and testing by other experiments. PanDA is the first exascale workload management system in HEP, already operating at a million computing jobs per day, and processing over an exabyte of data in 2013. We will describe the design and implementation of PanDA, present data on the performance of PanDA a...

  16. An error in "On a new formal proof model for RFID location Da-Zhi Sun a, *

    E-print Network

    International Association for Cryptologic Research (IACR)

    Frequency Identification (RFID) systems are a promising automatic identification technology. Basically, RFIDAn error in "On a new formal proof model for RFID location privacy" Da-Zhi Sun a, * a School evaluated five formal RFID privacy models. One main result is that Ha et al.'s RFID privacy model

  17. [Robotics in general surgery: personal experience, critical analysis and prospectives].

    PubMed

    Fracastoro, Gerolamo; Borzellino, Giuseppe; Castelli, Annalisa; Fiorini, Paolo

    2005-01-01

    Today mini invasive surgery has the chance to be enhanced with sophisticated informative systems (Computer Assisted Surgery, CAS) like robotics, tele-mentoring and tele-presence. ZEUS and da Vinci, present in more than 120 Centres in the world, have been used in many fields of surgery and have been tested in some general surgical procedures. Since the end of 2003, we have performed 70 experimental procedures and 24 operations of general surgery with ZEUS robotic system, after having properly trained 3 surgeons and the operating room staff. Apart from the robot set-up, the mean operative time of the robotic operations was similar to the laparoscopic ones; no complications due to robotic technique occurred. The Authors report benefits and disadvantages related to robots' utilization, problems still to be solved and the possibility to make use of them with tele-surgery, training and virtual surgery. PMID:16400762

  18. Patient Positioning and Port Placement for Robot-Assisted Surgery

    PubMed Central

    Chang, Charles; Steinberg, Zoe; Shah, Anup

    2014-01-01

    Abstract The introduction of robotic surgical systems and their integration into minimally invasive procedures have changed the landscape of laparoscopic surgery dramatically. Intuitive Surgical's da Vinci Surgical System was first approved by the Food and Drug Administration for cardiothoracic procedures in the late 1990s. This trend quickly spread through other surgical specialties, with urologists as one of the frontrunners in adoption. Subsequently, pediatric urologists have adopted robot-assisted procedures in selected centers, performing procedures such as pyeloplasty for ureteropelvic junction obstruction, partial and complete nephrectomy, and both intravesical and extravesical ureteral reimplantation. In this article, we will discuss technical considerations related to patient positioning and port placement in pediatric robot-assisted surgery. PMID:24548088

  19. Robotic cardiac surgery: an anaesthetic challenge.

    PubMed

    Wang, Gang; Gao, Changqing

    2014-08-01

    Robotic cardiac surgery with the da Vinci robotic surgical system offers the benefits of a minimally invasive procedure, including a smaller incision and scar, reduced risk of infection, less pain and trauma, less bleeding and blood transfusion requirements, shorter hospital stay and decreased recovery time. Robotic cardiac surgery includes extracardiac and intracardiac procedures. Extracardiac procedures are often performed on a beating heart. Intracardiac procedures require the aid of peripheral cardiopulmonary bypass via a minithoracotomy. Robotic cardiac surgery, however, poses challenges to the anaesthetist, as the obligatory one-lung ventilation (OLV) and CO2 insufflation may reduce cardiac output and increase pulmonary vascular resistance, potentially resulting in hypoxaemia and haemodynamic compromise. In addition, surgery requires appropriate positioning of specialised cannulae such as an endopulmonary vent, endocoronary sinus catheter, and endoaortic clamp catheter under the guidance of transoesophageal echocardiography. Therefore, cardiac anaesthetists should have a working knowledge of these systems, OLV and haemodynamic support. PMID:24958894

  20. Toward Intraoperative Image-Guided Transoral Robotic Surgery

    PubMed Central

    Liu, Wen P.; Reaugamornrat, Sureerat; Deguet, Anton; Sorger, Jonathan M.; Siewerdsen, Jeffrey H.; Richmon, Jeremy; Taylor, Russell H.

    2014-01-01

    This paper presents the development and evaluation of video augmentation on the stereoscopic da Vinci S system with intraoperative image guidance for base of tongue tumor resection in transoral robotic surgery (TORS). Proposed workflow for image-guided TORS begins by identifying and segmenting critical oropharyngeal structures (e.g., the tumor and adjacent arteries and nerves) from preoperative computed tomography (CT) and/or magnetic resonance (MR) imaging. These preoperative planned data can be deformably registered to the intraoperative endoscopic view using mobile C-arm cone-beam computed tomography (CBCT) [1, 2]. Augmentation of TORS endoscopic video defining surgical targets and critical structures has the potential to improve navigation, spatial orientation, and confidence in tumor resection. Experiments in animal specimens achieved statistically significant improvement in target localization error when comparing the proposed image guidance system to simulated current practice. PMID:25525474

  1. Qual o Papel da Escola e da Mídia na Obtenção dos Conhecimentos Astronômicos?

    NASA Astrophysics Data System (ADS)

    da Cunha, W. S.; Voelzke, M. R.; Amaral, L. H.

    2007-08-01

    É amplamente reconhecido que as pessoas em geral têm grande fascínio e interesse pela Astronomia. Por outro lado, o conteúdo dessa área incluído no ensino formal está longe de ser abrangente e suficiente para suprir a demanda. Esse interesse permite aperfeiçoar a divulgação e o ensino não formal de Astronomia através da mídia aliando a adequação do conteúdo à expectativa das pessoas. A reforma do Currículo Básico da Escola Pública da maioria dos Estados brasileiros tem introduzido Astronomia desde a pré-escola até o Ensino Médio. Num estudo realizado com 1180 alunos do Ensino Médio de seis escolas estaduais, revelou-se através da aplicação de um formulário contendo questões que abordavam conhecimentos básicos em Astronomia, como foram adquiridos tais conhecimentos e à infra-estrutura da escola. Para 66,1% dos entrevistados o professor já fez alguma apresentação a respeito de Astronomia. O presente estudo revelou também que 54,4% dos alunos entrevistados adquiriram seus conhecimentos astronômicos na escola, 18,4% através da televisão e 27,1% afirmaram que seus conhecimentos foram obtidos através de outros tipos de mídia (internet, livros didáticos, filmes e revistas). Embora o estudo revele claramente que há certo equilíbrio no meio em que os alunos obtiveram seus conhecimentos astronômicos, a mídia busca não somente sua difusão, mas a disponibilização desse conhecimento de maneira correta, que às vezes, não é atingido, apresentando conceitos sem fundamentação e incorretos. Por outro lado, no dia-a-dia escolar, é comum encontrar professores que vêm para as aulas com concepções prévias, que podem diferir substancialmente das idéias a serem ensinadas, dificultando o aprendizado de futuros conceitos científicos. Uma avaliação criteriosa, avaliando as dificuldades dos professores em determinar o sentido correto dos conceitos e observando a metodologia que utilizam no ensino, poderá proporcionar uma melhor compreensão sobre as concepções alternativas, presentes no ensino de Astronomia.

  2. Wireless Application in Intravenous Infiltration Detection System

    PubMed Central

    Alley, Matthew S.; Naramore, William J.; Chou, Nee-Yin; Winchester, Leonard W.

    2008-01-01

    The IrDA wireless protocol has been applied to a fiber optics based point-of-care system for the detection of intravenous infiltration. The system is used for monitoring patients under infusion therapy. It is optimized for portability by incorporating a battery source and wireless communication. The IrDA protocol provides secure data communication between the electronic module of the system and the PDAs carried by the nurses. The PDA is used for initiating the actions of the electronic module and for data transfer. Security is provided by specially designed software and hardware. PMID:19162821

  3. Wireless application in intravenous infiltration detection system.

    PubMed

    Alley, Matthew S; Naramore, William J; Chou, Nee-Yin; Winchester, Leonard W

    2008-01-01

    The IrDA wireless protocol has been applied to a fiber optics based point-of-care system for the detection of intravenous infiltration. The system is used for monitoring patients under infusion therapy. It is optimized for portability by incorporating a battery source and wireless communication. The IrDA protocol provides secure data communication between the electronic module of the system and the PDAs carried by the nurses. The PDA is used for initiating the actions of the electronic module and for data transfer. Security is provided by specially designed software and hardware. PMID:19162821

  4. Robotic-Assisted Minimally Invasive Surgery for Gynecologic and Urologic Oncology

    PubMed Central

    2010-01-01

    Executive Summary Objective An application was received to review the evidence on the ‘The Da Vinci Surgical System’ for the treatment of gynecologic malignancies (e.g. endometrial and cervical cancers). Limitations to the current standard of care include the lack of trained physicians on minimally invasive surgery and limited access to minimally invasive surgery for patients. The potential benefits of ‘The Da Vinci Surgical System’ include improved technical manipulation and physician uptake leading to increased surgeries, and treatment and management of these cancers. The demand for robotic surgery for the treatment and management of prostate cancer has been increasing due to its alleged benefits of recovery of erectile function and urinary continence, two important factors of men’s health. The potential technical benefits of robotic surgery leading to improved patient functional outcomes are surgical precision and vision. Clinical Need Uterine and cervical cancers represent 5.4% (4,400 of 81,700) and 1.6% (1,300 of 81,700), respectively, of incident cases of cancer among female cancers in Canada. Uterine cancer, otherwise referred to as endometrial cancer is cancer of the lining of the uterus. The most common treatment option for endometrial cancer is removing the cancer through surgery. A surgical option is the removal of the uterus and cervix through a small incision in the abdomen using a laparoscope which is referred to as total laparoscopic hysterectomy. Risk factors that increase the risk of endometrial cancer include taking estrogen replacement therapy after menopause, being obese, early age at menarche, late age at menopause, being nulliparous, having had high-dose radiation to the pelvis, and use of tamoxifen. Cervical cancer occurs at the lower narrow end of the uterus. There are more treatment options for cervical cancer compared to endometrial cancer, however total laparoscopic hysterectomy is also a treatment option. Risk factors that increase the risk for cervical cancer are multiple sexual partners, early sexual activity, infection with the human papillomavirus, and cigarette smoking, whereas barrier-type of contraception as a risk factor decreases the risk of cervical cancer. Prostate cancer is ranked first in men in Canada in terms of the number of new cases among all male cancers (25,500 of 89,300 or 28.6%). The impact on men who develop prostate cancer is substantial given the potential for erectile dysfunction and urinary incontinence. Prostate cancer arises within the prostate gland, which resides in the male reproductive system and near the bladder. Radical retropubic prostatectomy is the gold standard treatment for localized prostate cancer. Prostate cancer affects men above 60 years of age. Other risk factors include a family history of prostate cancer, being of African descent, being obese, consuming a diet high in fat, physical inactivity, and working with cadium. The Da Vinci Surgical System The Da Vinci Surgical System is a robotic device. There are four main components to the system: 1) the surgeon’s console, where the surgeon sits and views a magnified three-dimensional image of the surgical field; 2) patient side-cart, which sits beside the patient and consists of three instrument arms and one endoscope arm; 3) detachable instruments (endowrist instruments and intuitive masters), which simulate fine motor human movements. The hand movements of the surgeon’s hands at the surgeon’s console are translated into smaller ones by the robotic device and are acted out by the attached instruments; 4) three-dimensional vision system: the camera unit or endoscope arm. The main advantages of use of the robotic device are: 1) the precision of the instrument and improved dexterity due to the use of “wristed” instruments; 2) three-dimensional imaging, with improved ability to locate blood vessels, nerves and tissues; 3) the surgeon’s console, which reduces fatigue accompanied with conventional laparoscopy surgery and allows for

  5. 78 FR 61345 - Privacy Act of 1974; System of Records

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-03

    ...&M 01 System name: Civil Liberties Program Case Management System (January 19, 2011, 76 FR 3099... proposes to alter a system of records, DA&M 01, entitled ``Civil Liberties Program Case Management System... Maintaining Records About Individuals,'' dated February 8, 1996 (February 20, 1996, 61 FR 6427)....

  6. Observing the result of external magnetic field with nonextensivity on DA waves for two temperature electrons in a dusty plasmas

    NASA Astrophysics Data System (ADS)

    Zobaer, M. S.; Roy, N.; Mamun, A. A.

    2014-03-01

    This theoretical investigation has been made on dust-acoustic (DA) waves containing nonextensivity of electrons being two different temperatures, negatively charged dust grains, and Maxwellian ions. The Zakharov-Kuznetsov (Z-K) equation has been derived and numerically solved to analysis the basis features. It is observed that the characteristics of the DA solitary waves (DASWs) are significantly modified by the external magnetic field with the different temperatures for electrons followed by the nonextensive distribution. The results obtained from this analysis can be employed in understanding the nature of plasma waves both in laboratory and space plasma system.

  7. Que pensa você da arte de esquerda?

    E-print Network

    Boal, Augusto

    1970-04-01

    demiurgo da arte—este lugar comum já foi destruído por Roberto Schwarz {Teoria e Prática, No. 2) onde observa que entre o artista e o consumidor, numa sociedade capitalista, insere-se o mediador-capital, o mediado-patrocinador. O dinheiro, este sim, é o... para o povo e justamente por isso todos os governos excluem, cuidadosamente, a verdadeira popularização do teatro dos seus planos de auxílio. Em geral, dá-se dinheiro para que os preços caiam de sete para três cruzeiros—as chamadas temporadas...

  8. Co-activation of VTA DA and GABA neurons mediates nicotine reinforcement.

    PubMed

    Tolu, S; Eddine, R; Marti, F; David, V; Graupner, M; Pons, S; Baudonnat, M; Husson, M; Besson, M; Reperant, C; Zemdegs, J; Pagès, C; Hay, Y A H; Lambolez, B; Caboche, J; Gutkin, B; Gardier, A M; Changeux, J-P; Faure, P; Maskos, U

    2013-03-01

    Smoking is the most important preventable cause of mortality and morbidity worldwide. This nicotine addiction is mediated through the nicotinic acetylcholine receptor (nAChR), expressed on most neurons, and also many other organs in the body. Even within the ventral tegmental area (VTA), the key brain area responsible for the reinforcing properties of all drugs of abuse, nicotine acts on several different cell types and afferents. Identifying the precise action of nicotine on this microcircuit, in vivo, is important to understand reinforcement, and finally to develop efficient smoking cessation treatments. We used a novel lentiviral system to re-express exclusively high-affinity nAChRs on either dopaminergic (DAergic) or ?-aminobutyric acid-releasing (GABAergic) neurons, or both, in the VTA. Using in vivo electrophysiology, we show that, contrary to widely accepted models, the activation of GABA neurons in the VTA plays a crucial role in the control of nicotine-elicited DAergic activity. Our results demonstrate that both positive and negative motivational values are transmitted through the dopamine (DA) neuron, but that the concerted activity of DA and GABA systems is necessary for the reinforcing actions of nicotine through burst firing of DA neurons. This work identifies the GABAergic interneuron as a potential target for smoking cessation drug development. PMID:22751493

  9. DA?NE and KLOE-2

    NASA Astrophysics Data System (ADS)

    De Santis, Antonio

    2015-11-01

    The DA?NE collider, located in the Frascati National Laboratories of INFN, has two main rings, where electrons and positrons are stored to collide at a center of mass energy of 1.02 GeV, the ? resonance mass. The KLOE-2 experiment is located at the collider interaction region (IR). The detector is capable of observing and collecting data coming from ? decay: charged and neutral kaon pairs, lighter unflavored mesons (?, ? \\prime , f0, ao, ? /? ). In the first half of 2013 the KLOE detector has been upgraded inserting new detector layers in the inner part of the apparatus, around the IR in order to improve detector hermeticity and acceptance. The long shutdown has been used to undertake a general consolidation program aimed at improving the DA?NE performances. This contribution presents the ?-factory setup and the achieved performances in terms of beam currents, luminosity and related aspects together with the KLOE-2 physics program, upgrade status report and recent physics results.

  10. DAEdALUS and Dark Matter

    E-print Network

    Kahn, Yonatan; Thaler, Jesse; Toups, Matthew

    2014-01-01

    Among laboratory probes of dark matter, fixed-target neutrino experiments are particularly well-suited to search for light weakly-coupled dark sectors. In this paper, we show that the DAEdALUS source setup---an 800 MeV proton beam impinging on a target of graphite and copper---can improve the present LSND bound on dark photon models by an order of magnitude over much of the accessible parameter space for light dark matter when paired with a suitable neutrino detector such as LENA. Interestingly, both DAEdALUS and LSND are sensitive to dark matter produced from off-shell dark photons. We show for the first time that LSND can be competitive with searches for visible dark photon decays, and that fixed-target experiments have sensitivity to a much larger range of heavy dark photon masses than previously thought. We review the mechanism for dark matter production and detection through a dark photon mediator, discuss the beam-off and beam-on backgrounds, and present the sensitivity in dark photon kinetic mixing for...

  11. The DA antagonist tiapride impairs context-related extinction learning in a novel context without affecting renewal

    PubMed Central

    Lissek, Silke; Glaubitz, Benjamin; Wolf, Oliver T.; Tegenthoff, Martin

    2015-01-01

    Renewal describes the recovery of an extinguished response if recall is tested in a context different from the extinction context. Behavioral studies demonstrated that attention to relevant context strengthens renewal. Neurotransmitters mediating attention and learning such as the dopaminergic (DA) system presumably modulate extinction learning and renewal. However, the role of DA for non-fear-based extinction learning and renewal in humans has not yet been investigated. This fMRI study investigated effects of DA-antagonism upon context-related extinction in a predictive learning task in which extinction occurred either in a novel (ABA) or an unchanged (AAA) context. The tiapride-treated group (TIA) showed significantly impaired ABA extinction learning and a significant within-group difference between ABA and AAA extinction, compared to placebo (PLAC). Groups did not differ in their level of ABA renewal. In ABA extinction, TIA showed reduced activation in dlPFC and OFC, hippocampus, and temporal regions. Across groups, activation in PFC and hippocampus correlated negatively with ABA extinction errors. Results suggest that in context-related extinction learning DA in PFC and hippocampus is involved in readjusting the cue-outcome relationship in the presence of a novel context. However, relating context to the appropriate association during recall does not appear to rely exclusively on DA signaling. PMID:26388752

  12. Is it turquoise + fuchsia = purple or is it turquoise + fuchsia = blue?

    NASA Astrophysics Data System (ADS)

    Beretta, Giordano B.; Moroney, Nathan M.

    2011-01-01

    The first step in communicating color is to name it. The second step is color semiotics. The third step is introducing structure in the set of colors. In color education at all levels, this structure often takes the form of formulæ, like red + green = yellow, or turquoise + red = black. In recent times, Johannes Itten's color theory and its associated color wheel have been very influential, mostly through its impact on Bauhaus, although a number of color order systems and circles have been introduced over the centuries. Students get confused when they are trying to formulate the color name arithmetic using the structure of color order systems and concepts like complementary colors and opponent colors. Suddenly turquoise + fuchsia = purple instead of blue; purple and violet become blurred, and finally the student's head explodes under the epistemological pressures of Itten, Albers, Goethe, Runge, Newton, da Vinci, and all the other monsters of color structure. In this contribution we propose a systematic presentation of structure in color, from color theories to color naming. We start from the concept of color perception introduced by da Vinci and work ourselves through color measurement, color formation, and color naming, to develop the basis for a robust system based on table lookup and interpolation. One source of confusion is that color naming has been quite loose in color theory, where for example red can be used interchangeably with fuchsia, and blue with turquoise. Furthermore, common color terms are intermingled with technical colorant terms, for example cyan and aqua or fuchsia and magenta. We present the evolution of a few color terms, some of which have experienced a radical transition over the centuries, and describe an experiment showing the robustness of crowd-sourcing for color naming.

  13. Turbulence

    NASA Astrophysics Data System (ADS)

    Frisch, Uriel

    1996-01-01

    Written five centuries after the first studies of Leonardo da Vinci and half a century after A.N. Kolmogorov's first attempt to predict the properties of flow, this textbook presents a modern account of turbulence, one of the greatest challenges in physics. "Fully developed turbulence" is ubiquitous in both cosmic and natural environments, in engineering applications and in everyday life. Elementary presentations of dynamical systems ideas, probabilistic methods (including the theory of large deviations) and fractal geometry make this a self-contained textbook. This is the first book on turbulence to use modern ideas from chaos and symmetry breaking. The book will appeal to first-year graduate students in mathematics, physics, astrophysics, geosciences and engineering, as well as professional scientists and engineers.

  14. Vortex flow in nature and technology

    NASA Astrophysics Data System (ADS)

    Lugt, H. J.

    The occurrence and characteristics of vortices in flows are explored comprehensively, including historical observations and representations dated several millenia BC. Attention is given to the development of the scientific concept of vortices, and the basic concepts and kinematics of vortices are reviewed, as are the properties of simple vortices. The genesis and behavior of vorticity is traced through separation, instability, and turbulence. Fluid flow in a rotating system is explored, as are stratification in the ocean and atmosphere, circulations in the atmosphere, ocean, and earth, and the features of single vortices in the atmosphere and oceans. Hurrican formations are investigated, together with extraterrestrial vortices in planetary atmospheres, stars, and galaxies. A plethora of photographs and illustrations is presented, including drawings by Leonardo da Vinci.

  15. Robotically assisted totally endoscopic coronary artery bypass surgery

    PubMed Central

    Canale, Leonardo Secchin; Mick, Stephanie; Mihaljevic, Tomislav; Nair, Ravi

    2013-01-01

    Robotically assisted totally endoscopic coronary artery bypass surgery has emerged as a feasible and efficient alternative to conventional full sternotomy coronary artery bypass graft surgery in selected patients. This minimally invasive approach using the daVinci robotic system allows fine intrathoracic maneuvers and excellent view of the coronary arteries. Both on-pump and off-pump operations can be performed to treat single and multivessel disease. Hybrid approaches have the potential of offering complete revascularization with the “best of both worlds” from surgery (internal mammary artery anastomosis in less invasive fashion) and percutaneous coronary intervention (least invasive approach). In this article we review the indications, techniques, short and long term results, as well as current developments in totally endoscopic robotic coronary artery bypass operations. PMID:24251021

  16. [Robotic surgery -- the modern surgical treatment of prostate cancer].

    PubMed

    Szabó, Ferenc János; Alexander, de la Taille

    2014-09-01

    Minimally invasive laparoscopic surgery replaces many open surgery procedures in urology due to its advantages concerning post-operative morbidity. However, the technical challenges and need of learning have limited the application of this method to the work of highly qualified surgeons. The introduction of da Vinci surgical system has offered important technical advantages compared to the laparoscopic surgical procedure. Robot-assisted radical prostatectomy became a largely accepted procedure. It has paved the way for urologists to start other, more complex operations, decreasing this way the operative morbidity. The purpose of this article is to overview the history of robotic surgery, its current and future states in the treatment of the cancer. We present our robot-assisted radical prostatectomy and the results. PMID:25260081

  17. Quality of life after robotically assisted atrial myxoma excision.

    PubMed

    Kesävuori, Risto; Raivio, Peter; Jokinen, Janne J; Sahlman, Antero; Vento, Antti

    2015-09-01

    The aim of this study was to evaluate the clinical outcome after robotically assisted myxoma surgery performed at our institution. Altogether nine patients underwent robotically assisted atrial myxoma excision. A control group was selected from 18 consecutive patients who underwent an isolated atrial myxoma excision via conventional sternotomy. Preoperative patient characteristics were similar between the two study groups. Postoperative health-related quality of life (HRQoL) was also evaluated. All robotic operations were completed successfully using the da Vinci™ telesurgical system. There was no mortality in either of the two study groups. Procedure, cardiopulmonary bypass, aortic occlusion, and ventilation times were shorter in the sternotomy group when compared to the robotic group. Length of stay was statistically significantly shorter in the robotically assisted group. Postoperative quality of life did not differ between the two study groups. We conclude that robotically assisted surgery is a feasible method for treating atrial myxomas. PMID:26531204

  18. [Robot-assisted Mitral Valve Plasty].

    PubMed

    Ishikawa, Norihiko; Watanabe, Gou

    2015-01-01

    In April 2014, Team Watanabe have completed 249 robot-assisted cardiac surgeries. Wide range of procedures include internal thoracic artery harvesting, totally endoscopic coronary artery bypass grafting(CABG), atrial septal defect closure, mitral valve plasty, cardiac tumor resection. The major benefit of robot-assisted cardiac surgery, which differentiates it from minimally invasive cardiac surgery, is that it only requires a few ports instead of small thoracotomy. Mitral valve plasty for regurgitation is one of the most suitable indication, which represents the advantage of robot-assisted cardiac surgery. The da Vinci surgical system completely changed the modality of cardiac surgeries from median sternotomy to endoscopic approach. Endoscopic surgery is expected not only to provide superior cosmesis but also to reduce complications and improve post-operative quality of life. In addition, we consider that sharing the same surgical view on the screen monitor is another great benefit from the educational point of view for the next-generation. PMID:25595158

  19. A DBTechNet course module on database SQL transactions for VET teachers training and higher education informatics education

    NASA Astrophysics Data System (ADS)

    Dervos, D. A.; Skourlas, C.; Laiho, M.

    2015-02-01

    "DBTech VET Teachers" project is Leonardo da Vinci Multilateral Transfer of Innovation Project co-financed by the European Commission's Lifelong Learning Programme. The aim of the project is to renew the teaching of database technologies in VET (Vocational Education and Training) institutes, on the basis of the current and real needs of ICT industry in Europe. Training of the VET teachers is done with the systems used in working life and they are taught to guide students to learning by verifying. In this framework, a course module on SQL transactions is prepared and offered. In this paper we present and briefly discuss some qualitative/quantitative data collected from its first pilot offering to an international audience in Greece during May-June 2013. The questionnaire/evaluation results, and the types of participants who have attended the course offering, are presented. Conclusions are also presented.

  20. The colour wheels of art, perception, science and physiology

    NASA Astrophysics Data System (ADS)

    Harkness, Nick

    2006-06-01

    Colour is not the domain of any one discipline be it art, philosophy, psychology or science. Each discipline has its own colour wheel and this presentation examines the origins and philosophies behind the colour circles of Art, Perception, Science and Physiology (after image) with reference to Aristotle, Robert Boyle, Leonardo da Vinci, Goethe, Ewald Hering and Albert Munsell. The paper analyses and discusses the differences between the four colour wheels using the Natural Colour System® notation as the reference for hue (the position of colours within each of the colour wheels). Examination of the colour wheels shows the dominance of blue in the wheels of art, science and physiology particularly at the expense of green. This paper does not consider the three-dimensionality of colour space its goal was to review the hue of a colour with regard to its position on the respective colour wheels.

  1. Robotics and medicine: A scientific rainbow in hospital.

    PubMed

    Jeelani, S; Dany, A; Anand, B; Vandana, S; Maheswaran, T; Rajkumar, E

    2015-08-01

    The journey of robotics is a real wonder and astonishingly can be considered as a scientific rainbow showering surprising priceless power in the era of future technologies. The astonishing seven technologies discussed in this paper are da Vinci Robotic surgical system and sperm sorters for infertility, Veebot for blood investigation, Hanako the robotic dental patient for simulating the dental patient and helping a trainee dentist, RP-7 robot who is around-the-clock physician connecting the physician and patient, Robot for Interactive Body Assistance (RIBA) who is a RIBA serving as a nurse, Bushbot serving as a brilliant surgeon, and Virtibot helping in virtual autopsy. Thus, robotics in medicine is a budding field contributing a great lot to human life from before birth to afterlife in seven forms thus gracefully portraying a scientific rainbow in hospital environment. PMID:26538882

  2. Navigation, robotics, and intraoperative imaging in spinal surgery.

    PubMed

    Ringel, Florian; Villard, Jimmy; Ryang, Yu-Mi; Meyer, Bernhard

    2014-01-01

    Spinal navigation is a technique gaining increasing popularity. Different approaches as CT-based or intraoperative imaging-based navigation are available, requiring different methods of patient registration, bearing certain advantages and disadvantages. So far, a large number of studies assessed the accuracy of pedicle screw implantation in the cervical, thoracic, and lumbar spine, elucidating the advantages of image guidance. However, a clear proof of patient benefit is missing, so far. Spinal navigation is closely related to intraoperative 3D imaging providing an imaging dataset for navigational use and the opportunity for immediate intraoperative assessment of final screw position giving the option of immediate screw revision if necessary. Thus, postoperative imaging and a potential revision surgery for screw correction become dispensable.Different concept of spinal robotics as the DaVinci system and SpineAssist are under investigation. PMID:24309918

  3. Mechanics of blood flow.

    PubMed

    Skalak, R; Keller, S R; Secomb, T W

    1981-05-01

    The historical development of the mechanics of blood flow can be traced from ancient times, to Leonardo da Vinci and Leonhard Euler and up to the present times with increasing biological knowledge and mathematical analysis. In the last two decades, quantitative and numerical methods have steadily given more complete and precise understanding. In the arterial system wave propagation computations based on nonlinear one-dimensional modeling have given the best representation of pulse wave propagation. In the veins, the theory of unsteady flow in collapsible tubes has recently been extensively developed. In the last decade, progress has been made in describing the blood flow at junctions, through stenoses, in bends and in capillary blood vessels. The rheological behavior of individual red blood cells has been explored. A working model consists of an elastic membrane filled with viscous fluid. This model forms a basis for understanding the viscous and viscoelastic behavior of blood. PMID:7024641

  4. The importance of being top-heavy: Intrinsic stability of flapping flight

    NASA Astrophysics Data System (ADS)

    Ristroph, Leif; Liu, Bin; Zhang, Jun

    2011-11-01

    We explore the stability of flapping flight in a model system that consists of a pyramid-shaped object that freely hovers in a vertically oscillating airflow. Such a ``bug'' not only generates sufficient aerodynamic force to keep aloft but also robustly maintains balance during free-flight. Flow visualization reveals that both weight support and intrinsic stability result from the periodic shedding of dipolar vortices. Counter-intuitively, the observed pattern of vortex shedding suggests that stability requires a high center-of-mass, which we verify by comparing the performance of top- and bottom-heavy bugs. Finally, we visit a zoo of other flapping flyers, including Mary Poppins' umbrella, a flying saucer or UFO, and Da Vinci's helicopter.

  5. Robotics and medicine: A scientific rainbow in hospital

    PubMed Central

    Jeelani, S.; Dany, A.; Anand, B.; Vandana, S.; Maheswaran, T.; Rajkumar, E.

    2015-01-01

    The journey of robotics is a real wonder and astonishingly can be considered as a scientific rainbow showering surprising priceless power in the era of future technologies. The astonishing seven technologies discussed in this paper are da Vinci Robotic surgical system and sperm sorters for infertility, Veebot for blood investigation, Hanako the robotic dental patient for simulating the dental patient and helping a trainee dentist, RP-7 robot who is around-the-clock physician connecting the physician and patient, Robot for Interactive Body Assistance (RIBA) who is a RIBA serving as a nurse, Bushbot serving as a brilliant surgeon, and Virtibot helping in virtual autopsy. Thus, robotics in medicine is a budding field contributing a great lot to human life from before birth to afterlife in seven forms thus gracefully portraying a scientific rainbow in hospital environment. PMID:26538882

  6. Initial experience of robot-assisted thoracoscopic surgery in China

    PubMed Central

    Huang, Jia; Luo, Qingquan; Tan, Qiang; Lin, Hao; Qian, Liqiang; Lin, Xu

    2014-01-01

    Background The objective of this study was to evaluate the safety and feasibility of robot-assisted thoracoscopic surgery (RATS). Methods From May 2009 to May 2013, 48 patients with intrathoracic lesions underwent RATS with the da Vinci® Surgical System was reported (11 lobectomies, 37 mediastinal tumour resections). Results RATS was successfully and safely completed in all 48 patients. Conversion of the operation to open surgery was not needed in any patient. The average operation time was 85.9?min, average blood loss 33?ml, and average hospital stay 3.9?days. No patient required blood transfusion. The only recognized adverse event was the development of a bronchopleural fistula in one patient. Conclusions RATS appears feasible and safe in thoracic surgery. More investigation will be needed in order to determine its possible long-term benefits and cost effectiveness. Copyright © 2014 John Wiley & Sons, Ltd. PMID:24782317

  7. Robotic intercostal nerve harvest: a feasibility study in a pig model.

    PubMed

    Miyamoto, Hideaki; Serradori, Thomas; Mikami, Yoji; Selber, Jesse; Santelmo, Nicola; Facca, Sybille; Liverneaux, Philippe

    2016-01-01

    The aim of this study was to report the feasibility of robotic intercostal nerve harvest in a pig model. A surgical robot, the da Vinci Model S system, was installed after the creation of 3 ports in the pig's left chest. The posterior edges of the fourth, fifth, and sixth intercostal nerves were isolated at the level of the anterior axillary line. The anterior edges of the nerves were transected at the rib cartilage zone. Three intercostal nerve harvesting procedures, requiring an average of 33 minutes, were successfully performed in 3 pigs without major complications. The advantages of robotic microsurgery for intercostal nerve harvest include elimination of physiological tremor, free movement of joint-equipped robotic arms, and amplification of the surgeon's hand motion by as much as 5 times. Robot-assisted neurolysis may be clinically useful for intercostal nerve harvest for brachial plexus reconstruction. PMID:26207601

  8. Reflection by Porro Prisms

    NASA Astrophysics Data System (ADS)

    Greenslade, Thomas B.

    2010-04-01

    Students all know that reflection from a plane mirror produces an image that is reversed right to left and so cannot be read by anyone but Leonardo da Vinci, who kept his notes in mirror writing. A useful counter-example is the Porro prism, which produces an image that is not reversed.

  9. Leonardo's Rule, Self-Similarity, and Wind-Induced Stresses in Trees

    NASA Astrophysics Data System (ADS)

    Eloy, Christophe

    2011-12-01

    Examining botanical trees, Leonardo da Vinci noted that the total cross section of branches is conserved across branching nodes. In this Letter, it is proposed that this rule is a consequence of the tree skeleton having a self-similar structure and the branch diameters being adjusted to resist wind-induced loads.

  10. Nature Foil Reliefs

    ERIC Educational Resources Information Center

    Lane, Shaw J.

    2012-01-01

    Nature has always been a source of inspiration for artists across the centuries. Artists such as Leonardo da Vinci, Georgia O'Keeffe, Ansel Adams, and Andy Goldsworthy all drew inspiration for their work from nature. Seeds come from the dried pods, which when planted and cared for, bear fruit. In this article, the author describes how her…

  11. Specific Reading Disability in Historically Famous Persons.

    ERIC Educational Resources Information Center

    Aaron, P. G.; And Others

    1988-01-01

    The possibility that four famous men--Thomas Alva Edison, Woodrow Wilson, Hans Christian Andersen, and Leonardo da Vinci--might have been reading disabled is considered by examining information concerning: (1) biographical records, (2) cognitive characteristics, (3) neuropsychological characteristics, and (4) biological characteristics. (Author/DB)

  12. Tree Rings as Environmental

    E-print Network

    Grissino-Mayer, Henri D.

    regions around the world. Origins of Dendrochronology The ancient Greeks, and later Leonardo da Vinci of dendrochronology is credited to Andrew E. Douglass. In the early 1900s, Douglass, an astronomer at the University region. This tech- nique, known as crossdating, is the most fundamental principle of dendrochronology

  13. Mathematical Fiction for Senior Students and Undergraduates: Novels, Plays, and Film

    ERIC Educational Resources Information Center

    Padula, Janice

    2006-01-01

    Mathematical fiction has probably existed since ideas have been written down and certainly as early as 414 BC (Kasman, 2000). Mathematical fiction is a recently rediscovered and growing literature, as sales of the novels: "The Curious Incident of the Dog in the Night-time" (Haddon, 2003) and "The Da Vinci Code" (Brown, 2004) attest. Science…

  14. Revision Date: March 2, 2015 S. CATHEDRAL PLACE

    E-print Network

    Gough, Christopher M.

    . 31. (A-1) Center for Psychological Services and Development, 612-620 N. Lombardy St.* 32. (B-9) Child Development Center, VCU, 1128 Floyd Ave.* 33. (D-6) Crenshaw House, 919 W. Franklin St. 34. (F-9) da Vinci, The, 814 W. Broad St.* 39. (H-5) Development and Alumni Relations, VCU, 807-809 W. Broad St. 40. (I-12

  15. Extracting Energy from Atmospheric Turbulence Chinmay K. Patel

    E-print Network

    Stanford University

    accounts of birds soaring without flapping their wings, ranging from observations by Leonardo da Vinci to Octave Chanute,1, 2 can be found in literature. Birds circling in thermals or using the ridge lift along@stanford.edu XXIX OSTIV Congress, Lüsse-Berlin, Germany, 6 August - 13 August 2008 Abstract Birds frequently use

  16. The Library as bridge Science and Art

    E-print Network

    Napp, Nils

    /04/vitruvian-man-leonardo-da-vinci.jpg #12;http://3.bp.blogspot.com/-hLRpfkc8En0/ThGHu-KWICI/AAAAAAAA-1w://www.metmuseum.org/toah/images/h2/h2_xray_4.jpg Aboriginal art #12;Leonardo http://www.insidevancouver.ca/wp-content/uploads/2012

  17. Politecnico di Milano Area Approvvigionamenti e Logistica

    E-print Network

    Politecnico di Milano Area Approvvigionamenti e Logistica Piazza Leonardo da Vinci, 32 20133 Milano'asilo nido - Campus Leonardo e micro-nido Campus Bovisa del Politecnico di Milano Premesso che tutte le fascia medio-grandi, anziché n. 2 come previsto dal bando, per il nido campus Leonardo. Non essendo

  18. The Presidium and the Executive Committee have the pleasure to invite you to

    E-print Network

    Papanicolaou, Vassilis

    for the Kepler, the Leonardo da Vinci Award and Blaise Pascal Medallists. 11 : 15 to 11 : 30 am : Coffee break Science, University Paris-Sud, France #12;EAS BLAISE PASCAL MEDALS 2010 Presentation : Professor Giovanni F. Bignami, Italy, Blaise Pascal Medal in Astrophysics In recognition of the absolute value of his

  19. Robot-Assisted Hysterectomy

    MedlinePLUS

    ... another patient to show kind of how this works. We place the patient in dorsal lithotomy position. We use ... And I think that’s what we found to work for us if we find those adhesions and then place the da Vinci ports and then dock. 00: ...

  20. Comparison of Expert-Based and Empirical Evaluation Methodologies in the Case of a CBL Environment: The ''Orestis'' Experience

    ERIC Educational Resources Information Center

    Karoulis, Athanasis; Demetriadis, Stavros; Pombortsis, Andreas

    2006-01-01

    This paper compares several interface evaluation methods applied in the case of a computer based learning (CBL) environment, during a longitudinal study performed in three European countries, Greece, Germany, and Holland, and within the framework of an EC funded Leonardo da Vinci program. The paper firstly considers the particularities of the CBL…

  1. The Prelude to the Millennium: The Backstory of Digital Aesthetics

    ERIC Educational Resources Information Center

    Mayo, Sherry

    2008-01-01

    The artist and scientist have been depicted as polar opposites since Michelangelo claimed that Leonardo da Vinci was wasting time with foolish inventions while his art suffered. However, the artist taking on the role of the researcher has precedent. In the 1960s, Experiments in Art and Technology (E.A.T.), led by Bell Labs' engineer Billy Kluver,…

  2. Postmodern Irony as Subversive Rhetorical Strategy.

    ERIC Educational Resources Information Center

    Shugart, Helene A.

    1999-01-01

    Contributes to scholarship advancing the understanding of human communication by analyzing Susan Dorothea White's painting, "The First Supper," as a subversive postmodern ironic reading of Leonardo Da Vinci's "The Last Supper." Suggests that subversive irony assumes distinctive and complex technical and theoretical characteristics, thereby…

  3. Perception, Cognition, and Visualization.

    ERIC Educational Resources Information Center

    Arnheim, Rudolf

    1991-01-01

    Described are how pictures can combine aspects of naturalistic representation with more formal shapes to enhance cognitive understanding. These "diagrammatic" shapes derive from geometrical elementary and thereby bestow visual concreteness to concepts conveyed by the pictures. Leonardo da Vinci's anatomical drawings are used as examples…

  4. Teaching Science: A Picture Perfect Process.

    ERIC Educational Resources Information Center

    Leyden, Michael B.

    1994-01-01

    Explains how teachers can use graphs and graphing concepts when teaching art, language arts, history, social studies, and science. Students can graph the lifespans of the Ninja Turtles' Renaissance namesakes (Donatello, Michelangelo, Raphael, and Leonardo da Vinci) or world population growth. (MDM)

  5. Explorers with a Mission.

    ERIC Educational Resources Information Center

    Sweeney, Patricia James

    1991-01-01

    Offers brief summaries of contributions made by several of Christopher Columbus's contemporaries, including Nicholas Cusa, Leonardo da Vinci, Michelangelo Buonarroti, Nicholas Copernicus, Johannes Gutenberg, Sir Thomas More, Desiderius Erasmus, and John Colet. Urges modern Catholic educators to learn from these risk takers and visionaries. (DMM)

  6. Speculation and Historical Interpretation for Fifth and Sixth Graders.

    ERIC Educational Resources Information Center

    Schneider, Elizabeth; Gregory, Leslie A.

    2000-01-01

    Describes a unit for fifth- and sixth-grade students that helps develop critical thinking skills. Explains that students read the book, "Leonardo da Vinci" (Diane Stanley), to develop their historical interpretation skills and demonstrate that there is not just one right answer in history. (CMK)

  7. The Renaissance Culture and the Arts. Grades 3-6, The Time Traveler Series.

    ERIC Educational Resources Information Center

    Pofahl, Jane

    This resource guide encourages grade 3-6 students to explore the social structure, government, culture and art forms, scientific discoveries, and historic personalities of the European Renaissance. The work is organized into 10 topics: (1) The Renaissance; (2) Art; (3) Leonardo da Vinci; (4) The Medicis; (5) Michelangelo; (6) Printing; (7) Music;…

  8. Artsmarts.

    ERIC Educational Resources Information Center

    Greenman, Geri

    2000-01-01

    Provides information on Leonardo da Vinci, Michelangelo, and Honore Daumier's "Rue Transonian." Describes an art activity in which students in an advanced drawing class reproduce a famous drawing in the same medium as the original, make the composition contemporary, and include themselves in the composition. (CMK)

  9. The Xmath Integration Algorithm

    ERIC Educational Resources Information Center

    Bringslid, Odd

    2009-01-01

    The projects Xmath (Bringslid and Canessa, 2002) and dMath (Bringslid, de la Villa and Rodriguez, 2007) were supported by the European Commission in the so called Minerva Action (Xmath) and The Leonardo da Vinci programme (dMath). The Xmath eBook (Bringslid, 2006) includes algorithms into a wide range of undergraduate mathematical issues embedded…

  10. The Future Development of the European Union Education, Training and Youth Programmes After 2006: A Public Consultation Document.

    ERIC Educational Resources Information Center

    Commission of the European Communities, Brussels (Belgium). Directorate-General for Education and Culture.

    This document launches a wide public consultation with all those involved in and with an interest in the European Union's (EU's) education, training, and youth programs called Socrates, Tempus, Leonardo da Vinci, and Youth for Europe. It is the first step toward preparing the new generation of programs to start in 2007 and will inform the…

  11. Structural Information Retention in Visual Art Processing.

    ERIC Educational Resources Information Center

    Koroscik, Judith Smith

    The accuracy of non-art college students' longterm retention of structural information presented in Leonardo da Vinci's "Mona Lisa" was tested. Seventeen female undergraduates viewed reproductions of the painting and copies that closely resembled structural attributes of the original. Only 3 of the 17 subjects reported having viewed a reproduction…

  12. Humanities in the High School Classroom.

    ERIC Educational Resources Information Center

    Stawski, Conrad

    A humanities course that teaches an appreciation of tradition and culture through the visual arts includes consideration of contemporary art as well as classic paintings and sculpture. Study of Leonardo DaVinci's "Last Supper" provides an exercise in the intellectual approach to religious painting, while the portrait of Mona Lisa by the same…

  13. The Dangers of Art "Appreciation."

    ERIC Educational Resources Information Center

    Irvine, Hope

    1991-01-01

    Addresses the issue of the fame of Leonardo da Vinci's "Mona Lisa." Describes several kitsch objects that have been created about the painting. Maintains that students need to address this issue otherwise such exploitation will depreciate the value of the art work. (KM)

  14. On the Developing Role of Physical Models in Engineering Design Education

    ERIC Educational Resources Information Center

    Green, Graham; Smrcek, Ladislav

    2006-01-01

    Recent research, undertaken using participative observation methods within the Leonardo Da Vinci project "Open-Dynamic-Design", provides evidence that EU industrial practice continues to value the flexibility of physical models across a range of disciplines. This research is placed within the philosophical educational framework established by…

  15. Reach for the Stars: Visions for Literacy Coaching Programs

    ERIC Educational Resources Information Center

    DeFord, Diane

    2012-01-01

    This brief by the Literacy Coaching Clearinghouse is about reaching for the stars--stories of vision and commitment from educators in small and large schools. Everyone knows of people who are held up as "visionaries" throughout history: Leonardo Da Vinci, Mahatma Gandhi, Jules Verne, Thomas Edison, Susan Anthony, or John Dewey, to name a few. The…

  16. Kinderet: Developing Training for Early Childhood Educators in Information and Communications Technology (ICT) In Bulgaria, England, Portugal, Spain and Sweden

    ERIC Educational Resources Information Center

    Saude, S.; Carioca, V.; Siraj-Blatchford, J.; Sheridan, S.; Genov, K.; Nuez, R.

    2005-01-01

    In the European context the continuing training of early childhood educators in terms of information and communications technology (ICT) remains limited and is in need of development. The KINDERET project has been funded through the European Commission's "Leonardo da Vinci" programme aimed to identify and understand the theoretical and practical…

  17. Kids as Curators: Virtual Art at the Seattle Museum.

    ERIC Educational Resources Information Center

    Scanlan, Laura Wolff

    2000-01-01

    Discusses the use of technology at the Seattle Art Museum (Washington). Includes a Web site that enables students in grades six through ten to act as curators and offers integrations of technology in the exhibition "Leonardo Lives: The Codex Leicester and Leonardo da Vinci's Legacy of Art and Science." (CMK)

  18. Notes on Analytical Mechanics Ingemar Bengtsson (2015)

    E-print Network

    Bengtsson, Ingemar

    2015-01-01

    to the fruits of mathematics Leonardo da Vinci Sir Isaac Newton was a Master of the Mint. He also formulated, and by nothing else.1 The aim of Newton's mechanics is to predict the location at arbitrary times, given, as well as Differential Calculus itself, was invented by Newton), and xi may denote

  19. Everyday Electrical Engineering: A One-Week Summer Academy Course for High School Students

    ERIC Educational Resources Information Center

    Mehrizi-Sani, A.

    2012-01-01

    A summer academy is held for grade 9-12 high school students at the University of Toronto, Toronto, ON, Canada, every year. The academy, dubbed the Da Vinci Engineering Enrichment Program (DEEP), is a diverse program that aims to attract domestic and international high school students to engineering and sciences (and possibly recruit them). DEEP…

  20. Leonardo's vision of flow visualization M. Gharib, D. Kremers, M.M. Koochesfahani, M. Kemp

    E-print Network

    Koochesfahani, Manoochehr M.

    - search (around 1508­1509 and 1513), are a clear demon- stration of his observational genius eyes than with Leonardo da Vinci. He has often been seen as a universal genius, the prototype artist), are a clear demonstration of his observational genius, theoretical in- tuitions, and progressive deduction

  1. Cryptographer

    ERIC Educational Resources Information Center

    Sullivan, Megan

    2005-01-01

    For the general public, the field of cryptography has recently become famous as the method used to uncover secrets in Dan Brown's fictional bestseller, The Da Vinci Code. But the science of cryptography has been popular for centuries--secret hieroglyphics discovered in Egypt suggest that code-making dates back almost 4,000 years. In today's…

  2. A robot for transnasal surgery featuring needle-sized tentacle-like arms

    E-print Network

    A robot for transnasal surgery featuring needle-sized tentacle-like arms Expert Rev. Med. Devices known as concentric tube robots and their application to transnasal skull base surgery. The endonasal experimental results for transnasal skull base surgery are reviewed. Just as the da Vinci robot has

  3. How Is a Matisse Like a Mondrian?

    ERIC Educational Resources Information Center

    Brock, Barbara

    1991-01-01

    Reviews St. Philip Neri Elementary School's (Omaha, Nebraska) use of an art education approach incorporating aesthetics and art history, criticism, and production. Describes lessons on Matisse and Mondrian (kindergarten), Rouault's "Portrait of a Clown" (fifth grade) and da Vinci's "Last Supper" (second grade). Recommends the approach for…

  4. Unraveling Theorists' Evaluation Reality

    ERIC Educational Resources Information Center

    Alkin, Marvin C.; Christie, Christina A.

    2005-01-01

    The theorists whose work appears in this issue have confronted the exercise presented to them in vastly different ways. The editors of this journal asked these theorists to consider how they would evaluate the Bunche-Da Vinci program, and to make and specify assumptions about the program context. The primary task, however, was to describe "a…

  5. The Challenge of Assessing Project-Based Learning

    ERIC Educational Resources Information Center

    Boss, Suzie

    2012-01-01

    For their ambitious project, called America at War, high school juniors at Da Vinci Charter Academy in the Davis (California) Joint Unified School District didn't just study history. They became historians. Their project offers compelling evidence of what students can accomplish through project-based learning (PBL), an instructional approach that…

  6. Looking/Learning Drawing: Trees.

    ERIC Educational Resources Information Center

    Hurwitz, Al; Blume, Sharon

    1985-01-01

    Secondary students are asked to study and compare three reproductions--Van Gogh's "Grove of Cypresses," Da Vinci's "Study of a Tree," and Mondrian's "Tree II." The activity will help students develop their powers of observation and analysis, powers that can be applied to their own drawings. (RM)

  7. A Humanities and Medicine Program for Faculty.

    ERIC Educational Resources Information Center

    Loftus, Loretta S.; And Others

    1991-01-01

    The da Vinci Society provides a format for integration of the humanities, arts, medical education, and clinical practice. The critical discussion group, whose meetings' atmosphere is informal and collegial, includes basic science faculty, academic clinicians, private practice physicians, allied health personnel, and occasional visiting artists.…

  8. Art, Anatomy, and Medicine: Is There a Place for Art in Medical Education?

    ERIC Educational Resources Information Center

    Bell, Lawrence T. O.; Evans, Darrell J. R.

    2014-01-01

    For many years art, anatomy and medicine have shared a close relationship, as demonstrated by Leonardo da Vinci's anatomical drawings and Andreas Vesalius' groundbreaking illustrated anatomical textbook from the 16th century. However, in the modern day, can art truly play an important role in medical education? Studies have suggested…

  9. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. XX, NO. X, MONTH 20XX 1 Simultaneous Multi-Structure Segmentation and 3D

    E-print Network

    Hamarneh, Ghassan

    of interest. Further, contrary to most augmented reality frameworks in endoscopic surgery that assume known) is prized for its many advantages over traditional open operations in- cluding decreased risk of infection 200,000 operations were conducted worldwide us- ing the da Vinci robots (Intuitive Surgical Inc

  10. Bringing History Alive in the Classroom!

    ERIC Educational Resources Information Center

    McRae, Lee, Ed.

    1996-01-01

    This document consists of the first four issues of a serial publication, "Bringing History Alive in the Classroom!" The volumes focus on: (1) "A Sampling of Renaissance Instruments," which includes: information on Christopher Columbus, Leondardo da Vinci, and William Shakespeare, a timeline from the middle ages through the renaissance, Queen…

  11. Journal of Theoretical Biology 243 (2006) 283285 Letter to the Editor

    E-print Network

    2006-01-01

    -preserving branching (Leonardo da Vinci), elastic similarity (Greenhill, 1881), the constant ratio of foliage mass a slow-down in photosynthetic rate per unit leaf mass as trees increase in height, owing to increasing describing taper strength. Internodes in the Nth generation (i.e. terminal shoots or petioles) have a fixed

  12. C:\\Users\\Mary Anne Lynch\\Documents\\clients\\lehigh\\LNN\\EB_Minutes_06_07_13.doc Executive Board Minutes

    E-print Network

    Gilchrist, James F.

    Separations, BioSample Solutions, Custom Processing Services began in May/June 2013. 5. LNN co for posting or link to the LNN website. There is a question in the survey that may provide some of this info Instruments Custom Processing Svcs LVAIC Schools NCC LCTI Avantor Victaulic Dynalene Arkema DaVinci Center

  13. Historical Scientific Models and Theories as Resources for Learning and Teaching: The Case of Friction

    ERIC Educational Resources Information Center

    Besson, Ugo

    2013-01-01

    This paper presents a history of research and theories on sliding friction between solids. This history is divided into four phases: from Leonardo da Vinci to Coulomb and the establishment of classical laws of friction; the theories of lubrication and the Tomlinson's theory of friction (1850-1930); the theories of wear, the Bowden and Tabor's…

  14. Universidade Federal de Santa Catarina Centro de Cincias da Educao

    E-print Network

    Floeter, Sergio Ricardo

    Universidade Federal de Santa Catarina Centro de Ciências da Educação Núcleo de Desenvolvimento-Graduação Joana Maria Pedro Pró-Reitor de Pesquisa Jamil Assreuy Pró-Reitor de Extensão Edison da Rosa Pró. Stemmer e Sonia Maria Jordão de Castro Coordenadora de Saúde/NDI Elfy Margrit Göhring Weiss #12;RELATÓRIO

  15. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO ao 2º ano de exercício) da Profª Josiana Picolli. Relatora: Profª Graziela Maria Beretta López 6 Regina Ingrid Bragagnolo Relatora: Profª Sonia Maria Jordão de Castro 7. Assunto: Processo de Estágio

  16. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO de 2014 REALIZAÇÃO MEC MINISTÉRIO DA EDUCAÇÃO UFSC UNIVERSIDADE FEDERAL DE SANTA CATARINA CED CENTRO/NDI/CED/UFSC Drª VERENA WIGGERS COORDENADORA ADJUNTA ­ POLO ARARANGUÁ ­ CEDEI/NDI/CED/UFSC Msc. MARIA RAQUEL

  17. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO

    E-print Network

    Floeter, Sergio Ricardo

    UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CIÊNCIAS DA EDUCAÇÃO NÚCLEO DE DESENVOLVIMENTO professora Jane Cunha Pacheco. Relatora: professora Sonia Maria Jordão de Castro 6. Assunto: Progressão: professora Sonia Maria Jordão de Castro 7. Assunto: Progressão Funcional Vertical da Classe D nível 4 para

  18. MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO RIO DE JANEIRO

    E-print Network

    Liu, I-Shih

    inteiramente gratuito do programa na Instituição. Nos termos do Regimento e das Normas Acadêmicas: a proposta e Regimento do PROFHISTÓRIA. b) Documento de aprovação institucional do curso¸ ou declaração participação da Instituição no PROFHISTÓRIA estará condicionada à aprovação institucional do curso antes da

  19. Robotic Repair of Giant Paraesophageal Hernias

    PubMed Central

    Seetharamaiah, Rupa; Romero, Rey Jesús; Kosanovic, Radomir; Gallas, Michelle; Verdeja, Juan-Carlos; Rabaza, Jorge

    2013-01-01

    Background and Objectives: Giant paraesophageal hernia accounts for 5% of all hiatal hernias, and it is commonly seen in elderly patients with comorbidities. Some series report complication rates up to 28%, recurrence rates between 10% and 25%, and a mortality rate close to 2%. Recently, the da Vinci Surgical System (Intuitive Surgical, Sunnyvale, CA, USA) has shown equivocal benefits when used for elective surgeries, whereas for complex procedures, the benefits appear to be clearer. The purpose of this study is to present our preliminary experience in robotic giant paraesophageal hernia repair. Methods: We retrospectively collected data from patients who had a diagnosis of giant paraesophageal hernia and underwent a paraesophageal hernia repair with the da Vinci Surgical System. Results: Nineteen patients (12 women [63.1%]) underwent surgery for giant paraesophageal hernia at our center. The mean age was 70.4 ± 13.9 years (range, 40–97 years). The mean American Society of Anesthesiologists score was 2.15. The mean surgical time and hospital length of stay were 184.5 ± 96.2 minutes (range, 96–395 minutes) and 4.3 days (range, 2–22 days), respectively. Nissen fundoplications were performed in 3 cases (15.7%), and 16 patients (84.2%) had mesh placed. Six patients (31.5%) presented with gastric volvulus, and 2 patients had other herniated viscera (colon and duodenum). There were 2 surgery-related complications (10.5%) (1 dysphagia that required dilatation and 1 pleural injury) and 1 conversion to open repair (partial gastric resection). No recurrences or deaths were observed in this series. Conclusion: In our experience robotic giant paraesophageal hernia repair is not different from the laparoscopic approach in terms of complications and mortality rate, but it may be associated with lower recurrence rates. However, larger series with longer follow-up are necessary to further substantiate our results. PMID:24398199

  20. Berengario da Carpi: a pioneer in neurotraumatology.

    PubMed

    Di Ieva, Antonio; Gaetani, Paolo; Matula, Christian; Sherif, Camillo; Skopec, Manfred; Tschabitscher, Manfred

    2011-05-01

    Berengario da Carpi was one of the most famous physicians of the 16th century, a recognized master of anatomy and surgery, an emblematic "Renaissance man" who combined his medical experience and engineering knowledge to design new surgical instruments, and effectively used the arts of writing and drawing to describe state-of-the-art medicine and provide illustrations of anatomical structures. His greatest contribution to medicine was to write the most important work on craniocerebral surgery of the 16th century, the Tractatus de Fractura Calvae sive Cranei (Treatise on Fractures of the Calvaria or Cranium), in which he described an entire set of surgical instruments to be used for cranial operations to treat head traumas that became a reference for later generations of physicians. This was a systematic treatise covering the mechanisms, classification, and medical and surgical treatment of head traumas, and can be considered a milestone in the history of neurotraumatology. PMID:21128734

  1. 75 FR 52292 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ...2120-AA64 Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40...airworthiness directive (AD) for all Diamond Aircraft Industries GmbH Models DA 40...identified in this proposed AD, contact Diamond Aircraft Industries GmbH, N.A....

  2. 75 FR 52292 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... new airworthiness directive (AD) for all Diamond Aircraft Industries GmbH Models DA 40 and DA...

  3. ATA N. 99 / COLEGIADO / 2011 Universidade Federal de Santa Catarina, Centro de Cincias da Educao. Ata da nonagsima1

    E-print Network

    Floeter, Sergio Ricardo

    ATA N. 99 / COLEGIADO / 2011 Universidade Federal de Santa Catarina, Centro de Ciências da Educação, Giseli Day, Graziela Maria Beretta Lopez, Jane Cunha Pacheco6 Derner, Jodete Bayer Gommes Fullgraf Costa. Justificaram ausência: as professoras Márcia Regina Goulart da Silva Stemmer, Sônia12 Maria

  4. ATA N. 100 / COLEGIADO / 2012 Universidade Federal de Santa Catarina, Centro de Cincias da Educao. Ata da centsima1

    E-print Network

    Floeter, Sergio Ricardo

    ATA N. 100 / COLEGIADO / 2012 Universidade Federal de Santa Catarina, Centro de Ciências da Regina Goulart da Silva Stemmer e Sônia Maria Jordão de Castro; a coordenadora de Saúde: Elfy5 Margrit Reuss Strenzel, Giseli Day, Graziela Maria Beretta Lopez, Josiana7 Piccolli, Juliane Mendes Rosa La

  5. ATA N. 101 / COLEGIADO / 2012 Universidade Federal de Santa Catarina, Centro de Cincias da Educao. Ata da centsima1

    E-print Network

    Floeter, Sergio Ricardo

    ATA N. 101 / COLEGIADO / 2012 Universidade Federal de Santa Catarina, Centro de Ciências da; as4 coordenadoras pedagógicas Sonia Maria Jordão de Castro e Marcia Regina Goulart da Silva5 Stemmer Momm, Graziela12 Maria Beretta López, Pricilla Cristine Trierweiller, Ligia Mara Santos, Sandra Maria

  6. DISTRIBUTED CONTROL AND DA FOR ATLAS

    SciTech Connect

    D. SCUDDER; ET AL

    1999-05-01

    The control system for the Atlas pulsed power generator being built at Los Alamos National Laboratory will utilize a significant level of distributed control. Other principal design characteristics include noise immunity, modularity and use of commercial products wherever possible. The data acquisition system is tightly coordinated with the control system. Both share a common database server and a fiber-optic ethernet communications backbone.

  7. Respostas religiosas à aids no Brasil: impressões de pesquisa acerca da Pastoral de DST/Aids da Igreja Católica1

    PubMed Central

    Seffner, Fernando; Silva, Cristiane Gonçalves Meireles da; Maksud, Ívia; Garcia, Jonathan; Rios, Luís Felipe; Natividade, Marcelo; Borges, Priscila Rodrigues; Parker, Richard; Terto, Veriano

    2009-01-01

    O texto encontra-se estruturado em quatro partes. Na primeira delas, apresentamos um conjunto de considerações e informações acerca da situação da aids no Brasil, das relações entre religião, sexualidade, aids e estado laico, bem como uma descrição mais clara do Projeto Respostas Religiosas ao HIV/Aids no Brasil, do qual este texto apresenta algumas impressões de pesquisa preliminares. A seguir, dedicamos um item a apresentação da Pastoral de DST/Aids, sua história, estrutura e objetivos. No item seguinte problematizamos diversas questões em particular no âmbito das relações Estado e Igreja, relações entre agentes de pastoral e hierarquia da Igreja, e questões ligadas mais diretamente à sexualidade e aids, todas referenciadas ao trabalho da Pastoral de DST/Aids. Ao final, apresentamos a bibliografia e fontes consultadas. PMID:20442806

  8. TOWARDS A DAMS SAFETY MANAGEMENT SYSTEM FOR Vitor Camilo*

    E-print Network

    da Silva, Alberto Rodrigues

    . Additionally, in this paper we assert that a more complex and integrated system can help to achieve this plan Safety Management System (DSMS), particularly fitting for the geographic and political context of Angola1 TOWARDS A DAMS SAFETY MANAGEMENT SYSTEM FOR ANGOLA Vitor Camilo* , Alberto Rodrigues da Silva

  9. A New Interface Paradigm for Motion Capture Based Animation Systems

    E-print Network

    de Figueiredo, Luiz Henrique

    A New Interface Paradigm for Motion Capture Based Animation Systems Fernando Wagner Serpa Vieira da for motion capture based animation systems, providing intuitive and efficient ways to visualize the main methodology. keywords: motion capture, animation systems, computer animation, graphic interfaces, GUI paradigm

  10. A New Interface Paradigm for Motion Capture Based Animation Systems

    E-print Network

    de Figueiredo, Luiz Henrique

    A New Interface Paradigm for Motion Capture Based Animation Systems Fernando Wagner Serpa Vieira da for motion capture based animation systems, providing intuitive and e#cient ways to visualize the main motion: motion capture, animation systems, computer animation, graphic interfaces, GUI paradigm, motion control

  11. Endogenous ?-Opioid Receptor Systems Regulate Mesoaccumbal Dopamine Dynamics and Vulnerability to Cocaine

    PubMed Central

    Chefer, Vladimir I.; Czyzyk, Traci; Bolan, Elizabeth A.; Moron, Jose

    2006-01-01

    Genetic and pharmacological approaches were used to examine ?-opioid receptor (KOR-1) regulation of dopamine (DA) dynamics in the nucleus accumbens and vulnerability to cocaine. Microdialysis revealed that basal DA release and DA extraction fraction (Ed), an indirect measure of DA uptake, are enhanced in KOR-1 knock-out mice. Analysis of DA uptake revealed a decreased Km but unchanged Vmax in knock-outs. Knock-out mice exhibited an augmented locomotor response to cocaine, which did not differ from that of wild-types administered a behavioral sensitizing cocaine treatment. The ability of cocaine to increase DA was enhanced in knock-outs, whereas c-fos induction was decreased. Although repeated cocaine administration to wild types produced behavioral sensitization, knock-outs exhibited no additional enhancement of behavior. Administration of the long-acting KOR antagonist nor-binaltorphimine to wild-type mice increased DA dynamics. However, the effects varied with the duration of KOR-1 blockade. Basal DA release was increased whereas Ed was unaltered after 1 h blockade. After 24 h, release and Ed were increased. The behavioral and neurochemical effects of cocaine were enhanced at both time points. These data demonstrate the existence of an endogenous KOR-1 system that tonically inhibits mesoaccumbal DA neurotransmission. Its loss induces neuroadaptations characteristic of “cocaine-sensitized” animals, indicating a critical role of KOR-1 in attenuating responsiveness to cocaine. The increased DA uptake after pharmacological inactivation or gene deletion highlights the plasticity of mesoaccumbal DA neurons and suggests that loss of KOR-1 and the resultant disinhibition of DA neurons trigger short- and long-term DA transporter adaptations that maintain normal DA levels, despite enhanced release. PMID:15901784

  12. Endogenous kappa-opioid receptor systems regulate mesoaccumbal dopamine dynamics and vulnerability to cocaine.

    PubMed

    Chefer, Vladimir I; Czyzyk, Traci; Bolan, Elizabeth A; Moron, Jose; Pintar, John E; Shippenberg, Toni S

    2005-05-18

    Genetic and pharmacological approaches were used to examine kappa-opioid receptor (KOR-1) regulation of dopamine (DA) dynamics in the nucleus accumbens and vulnerability to cocaine. Microdialysis revealed that basal DA release and DA extraction fraction (Ed), an indirect measure of DA uptake, are enhanced in KOR-1 knock-out mice. Analysis of DA uptake revealed a decreased Km but unchanged Vmax in knock-outs. Knock-out mice exhibited an augmented locomotor response to cocaine, which did not differ from that of wild-types administered a behavioral sensitizing cocaine treatment. The ability of cocaine to increase DA was enhanced in knock-outs, whereas c-fos induction was decreased. Although repeated cocaine administration to wild types produced behavioral sensitization, knock-outs exhibited no additional enhancement of behavior. Administration of the long-acting KOR antagonist nor-binaltorphimine to wild-type mice increased DA dynamics. However, the effects varied with the duration of KOR-1 blockade. Basal DA release was increased whereas Ed was unaltered after 1 h blockade. After 24 h, release and Ed were increased. The behavioral and neurochemical effects of cocaine were enhanced at both time points. These data demonstrate the existence of an endogenous KOR-1 system that tonically inhibits mesoaccumbal DA neurotransmission. Its loss induces neuroadaptations characteristic of "cocaine-sensitized" animals, indicating a critical role of KOR-1 in attenuating responsiveness to cocaine. The increased DA uptake after pharmacological inactivation or gene deletion highlights the plasticity of mesoaccumbal DA neurons and suggests that loss of KOR-1 and the resultant disinhibition of DA neurons trigger short- and long-term DA transporter adaptations that maintain normal DA levels, despite enhanced release. PMID:15901784

  13. Regulation of dopamine system responsivity and its adaptive and pathological response to stress

    PubMed Central

    Belujon, Pauline; Grace, Anthony A.

    2015-01-01

    Although, historically, the norepinephrine system has attracted the majority of attention in the study of the stress response, the dopamine system has also been consistently implicated. It has long been established that stress plays a crucial role in the pathogenesis of psychiatric disorders. However, the neurobiological mechanisms that mediate the stress response and its effect in psychiatric diseases are not well understood. The dopamine system can play distinct roles in stress and psychiatric disorders. It is hypothesized that, even though the dopamine (DA) system forms the basis for a number of psychiatric disorders, the pathology is likely to originate in the afferent structures that are inducing dysregulation of the DA system. This review explores the current knowledge of afferent modulation of the stress/DA circuitry, and presents recent data focusing on the effect of stress on the DA system and its relevance to psychiatric disorders. PMID:25788601

  14. Load Segmentation for Convergence of Distribution Automation and Advanced Metering Infrastructure Systems

    NASA Astrophysics Data System (ADS)

    Pamulaparthy, Balakrishna; KS, Swarup; Kommu, Rajagopal

    2014-12-01

    Distribution automation (DA) applications are limited to feeder level today and have zero visibility outside of the substation feeder and reaching down to the low-voltage distribution network level. This has become a major obstacle in realizing many automated functions and enhancing existing DA capabilities. Advanced metering infrastructure (AMI) systems are being widely deployed by utilities across the world creating system-wide communications access to every monitoring and service point, which collects data from smart meters and sensors in short time intervals, in response to utility needs. DA and AMI systems convergence provides unique opportunities and capabilities for distribution grid modernization with the DA system acting as a controller and AMI system acting as feedback to DA system, for which DA applications have to understand and use the AMI data selectively and effectively. In this paper, we propose a load segmentation method that helps the DA system to accurately understand and use the AMI data for various automation applications with a suitable case study on power restoration.

  15. Electrosurgical injuries during robot assisted surgery: insights from the FDA MAUDE database

    NASA Astrophysics Data System (ADS)

    Fuller, Andrew; Vilos, George A.; Pautler, Stephen E.

    2012-02-01

    Introduction: The da Vinci surgical system requires the use of electrosurgical instruments. The re-use of such instruments creates the potential for stray electrical currents from capacitive coupling and/or insulation failure with subsequent injury. The morbidity of such injuries may negate many of the benefits of minimally invasive surgery. We sought to evaluate the rate and nature of electrosurgical injury (ESI) associated with this device. Methods: The Manufacturer and User Facility Device Experience (MAUDE) database is administered by the US Food and Drug Administration (FDA) and reports adverse events related to medical devices in the United States. We analyzed all incidents in the context of robotic surgery between January 2001 and June 2011 to identify those related to the use of electrosurgery. Results: In the past decade, a total of 605 reports have been submitted to the FDA with regard to adverse events related to the da Vinci robotic surgical platform. Of these, 24 (3.9%) were related to potential or actual ESI. Nine out of the 24 cases (37.5%) resulted in additional surgical intervention for repair. There were 6 bowel injuries of which only one was recognized and managed intra-operatively. The remainder required laparotomy between 5 and 8 days after the initial robotic procedure. Additionally, there were 3 skin burns. The remaining cases required conservative management or resulted in no harm. Conclusion: ESI in the context of robotic surgery is uncommon but remains under-recognized and under-reported. Surgeons performing robot assisted surgery should be aware that ESI can occur with robotic instruments and vigilance for intra- and post-operative complications is paramount.

  16. Evaluation of the ocean technology system's MK 1-S wireless surface unit, MK 1 DCI two diver air radio, MK 1-D-A wireless diver unit, MK 1-D-H hardwire diver unit and MK 1-D/S unit

    NASA Astrophysics Data System (ADS)

    Reyle, B. E.

    1985-05-01

    The OTS was evaluated for intelligibility, reliability and human engineering. The test subjects possessed various levels of experience with wireless or hardwire communication and SCUBA. The conditions under which the equipment was tested varied. Surface air temperatures ranged from 37 to 85 F; water temperatures from 65 to 80 F; and water depths from 8 feet of seawater (FSW) to greater than 60 FSW. The tests were conducted inside a circular 30 foot deep ascent tower, in shallow open bay water, and finally in an open ocean environment. The equipment was evaluated in areas of both high and low noise levels on the surface as well as in water. The OTS produced an overall intelligibility of 89.24% during manned open water testing using the Modified Rhyme Test (MRT) as the evaluation criteria, with a minimum effective range of 330 yards at 12 FSW and at least 875 yards, although it appears that the range of the MK 1-D-A is somewhat greater. Human engineering aspects of the OTS were found to be more than satisfactory, with no material failures encountered during testing. It is interesting to note that whenever the equipment required minor adjustments, these could be effected by the diver in the water (on the surface) and in most cases in less than 5 minutes. The amount of maintenance required on the OTS was minimal.

  17. Outubro/2015 Reunio da PROPG/UFSC com os

    E-print Network

    Hanazaki, Natalia

    Mestrado Profissional em Ensino de Física ­ Polo de Blumenau/SC (em apreciação) #12;4. Prêmio CAPES de Teses 2015 Autor: Marco Antônio de Oliveira Vieira Goulart Orientador: Prof. Newton Carneiro Affonso da

  18. Hypernuclear Physics with stopped K? at DA Phi NE

    NASA Astrophysics Data System (ADS)

    Agnello, M.; Amaudruz, P. A.; Beer, G.; Benussi, L.; Bertani, M.; Bianco, S.; Botta, E.; Bressani, T.; Busso, L.; Calvo, D.; Camerini, P.; Celano, L.; Cerello, P.; D'Erasmo, G.; Fabbri, F. L.; Feliciello, A.; Filippi, A.; Filippini, V.; Fiore, E. M.; Fiore, L.; Gianotti, P.; Giardoni, M.; Gill, D. R.; Grion, N.; Guaraldo, C.; Iazzi, F.; Lanaro, A.; Lee, L.; Lucherini, V.; Marcello, S.; Marciano, G.; Minetti, B.; Mirfakhrai, N.; Morra, O.; Nozdrin, A. A.; Olin, A.; Pantaleo, A.; Paticchio, V.; Raimondo, A.; Rossetto, E.; Rotondi, A.; Rui, R.; Salvini, P.; Sarwar, S.; Serdyuk, V.; Smith, G.; Venturelli, L.; Wheadon, R.; Yen, S.; Zenoni, A.

    1998-02-01

    The FINUDA experiment will start data taking in 1997 to study hypernuclear physics by a large acceptance. high resolution magnetic spectrometer at DA?NE, the Frascati o-factory. Physics motivations and goals besides the expected performances are described.

  19. Hypernuclear physics with stopped K- at DA?NE

    NASA Astrophysics Data System (ADS)

    Agnello, M.; Amaudruz, P. A.; Beer, G.; Benussi, L.; Bertani, M.; Bianco, S.; Botta, E.; Bressani, T.; Busso, L.; Calvo, D.; Camerini, P.; Celano, L.; Cerello, P.; D'Erasmo, G.; Fabbri, F. L.; Feliciello, A.; Filippi, A.; Filippini, V.; Fiore, E. M.; Fiore, L.; Gianotti, P.; Giardoni, M.; Gill, D. R.; Grion, N.; Guaraldo, C.; Iazzi, F.; Lanaro, A.; Lee, L.; Lucherini, V.; Marcello, S.; Marciano, G.; Minetti, B.; Mirfakhrai, N.; Morra, O.; Nozdrin, A. A.; Olin, A.; Pantaleo, A.; Paticchio, V.; Raimondo, A.; Rossetto, E.; Rotondi, A.; Rui, R.; Salvini, P.; Sarwar, S.; Serdyuk, V.; Smith, G.; Venturelli, L.; Wheadon, R.; Yen, S.; Zenoni, A.

    1997-02-01

    The FINUDA experiment will start data taking in 1997 to study hypernuclear physics by a large acceptance, high resolution magnetic spectrometer at DA?NE, the Frascati ?-factory. Physics motivations and goals besides the expected performances are described.

  20. Hypernuclear Physics with the FINUDA Spectrometer at DA?NE

    NASA Astrophysics Data System (ADS)

    Agnello, M.; Amaudruz, P. A.; Beer, G.; Benussi, L.; Bertani, M.; Bianco, S.; Botta, E.; Bressani, T.; Busso, L.; Calvo, D.; Camerini, P.; Celano, L.; Cerello, P.; D'Erasmo, G.; Fabbri, F. L.; Feliciello, A.; Filippi, A.; Filippini, V.; Fiore, E. M.; Fiore, L.; Gianotti, P.; Giardoni, M.; Gill, D. R.; Grion, N.; Guaraldo, C.; Iazzi, F.; Lanaro, A.; Lee, L.; Lucherini, V.; Marcello, S.; Marciano, G.; Minetti, B.; Montagna, P.; Mirfakhrai, N.; Morra, O.; Nozdrin, A. A.; Olin, A.; Pantaleo, A.; Paticchio, V.; Raimondo, A.; Rossetto, E.; Rotondi, A.; Rui, R.; Salvini, P.; Sarwar, S.; Serdyuk, V.; Smith, G.; Venturelli, L.; Wheadon, R.; Yen, S.; Zenoni, A.

    1997-02-01

    The FINUDA experiment will start data taking in 1997 to study hypernuclear physics by a large acceptance, high resolution magnetic spectrometer at DA?NE, the Frascati ?-factory. Physics motivations and goals besides the expected performances are described.