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1

Robotic laparoscopic surgery: a comparison of the da Vinci and Zeus systems  

Microsoft Academic Search

Objectives. To evaluate two currently available robotic surgical systems in performing various urologic laparoscopic procedures in an acute porcine model.Methods. Robotic laparoscopic surgery was performed in 14 swine. Data were compared between the da Vinci Robotic System and the Zeus Robotic System.Results. During laparoscopic nephrectomy, the da Vinci System (n = 6) had a significantly shorter total operating room time

Gyung Tak Sung; Inderbir S Gill

2001-01-01

2

DaVinci Canvas: A Telerobotic Surgical System with Integrated, Robot-Assisted, Laparoscopic Ultrasound Capability  

Microsoft Academic Search

\\u000a We present daVinci Canvas: a telerobotic surgical system with integrated robot-assisted laparoscopic ultrasound capability.\\u000a DaVinci Canvas consists of the integration of a rigid laparoscopic ultrasound probe with the daVinci robot, video tracking\\u000a of ultrasound probe motions, endoscope and ultrasound calibration and registration, autonomous robot motions, and the display\\u000a of registered 2D and 3D ultrasound images. Although we used laparoscopic liver

Joshua Leven; Darius Burschka; Rajesh Kumar; Gary Zhang; Steve Blumenkranz; Michael Awad; Gregory D. Hager; Mike Marohn; Michael A. Choti; Christopher J. Hasser; Russell H. Taylor

2005-01-01

3

A performance study comparing manual and robotically assisted laparoscopic surgery using the da Vinci system  

Microsoft Academic Search

Background: The objective of this study was to compare the efficacy of the da Vinci robotic system using both the three-dimensional view (3D) and two-dimensional (2D) view options with traditional manually assisted laparoscopic techniques in performing standardized exercises. Methods: To evaluate surgical efficiency in the use of robotically assisted and manual laparoscopic surgery for standardized exercises six, last-year medical students

G. Hubens; H. Coveliers; L. Balliu; M. Ruppert; W. Vaneerdeweg

2003-01-01

4

Leonardo da Vinci and the Downburst.  

NASA Astrophysics Data System (ADS)

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.

Gedzelman, Stanley David

1990-05-01

5

Leonardo da Vinci and the Downburst  

Microsoft Academic Search

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.

Stanley David Gedzelman

1990-01-01

6

Leonardo Da Vinci: A Review  

Microsoft Academic Search

The article reviews scholarship on Leonardo da Vinci during the 20th century. An initial fascination with a handful of paintings has led to a nearly comprehensive understanding of his art. A catalogue raisonnée for Leonardo and his school has yet to be made. Awareness of Leonardo as a scientist began with a vague reputation of a universal genius who never

Kim H. Veltman

2008-01-01

7

Leonardo da Vinci: A Review  

Microsoft Academic Search

The article reviews scholarship on Leonardo da Vinci during the 20th century. An initial fascination with a handful of paintings has led to a nearly comprehensive understanding of his art. A catalogue raisonnée for Leonardo and his school has yet to be made. Awareness of Leonardo as a scientist began with a vague reputation of a universal genius who never

Kim H. Veltman

2008-01-01

8

Leonardo da Vinci's Geometric Sketches  

NSDL National Science Digital Library

How do you solve a problem like solids, mathematically speaking? Well, you could use this rather fascinating resource provided by the Convergence magazine. Offered as an educational resource by the Mathematical Association of America (MAA), this particular resource brings together the work of the Franciscan friar Luca Pacioli (c.1445-1509) and the geometric sketches of Leonardo Da Vinci. Both men were interested in geometry, and this piece offers up a number of plate facsimiles of illustrations created by Da Vinci. Here visitors will find an introduction to this educational resource, along with illustrations of cubes, octahedrons, and cylinders. The accompanying article was written by Frank J. Swetz, and it is easy to see how these materials could be incorporated into a classroom discussion about the history of mathematics.

2008-09-15

9

Leonardo da Vinci's Geometric Sketches  

NSDL National Science Digital Library

How do you solve a problem like solids, mathematically speaking? Well, you could use this rather fascinating resource provided by the Convergence magazine. Offered as an educational resource by the Mathematical Association of America (MAA), this particular resource brings together the work of the Franciscan friar Luca Pacioli (c.1445-1509) and the geometric sketches of Leonardo Da Vinci. Both men were interested in geometry, and this piece offers up a number of plate facsimiles of illustrations created by Da Vinci. Here visitors will find an introduction to this educational resource, along with illustrations of cubes, octahedrons, and cylinders. The accompanying article was written by Frank J. Swetz, and it is easy to see how these materials could be incorporated into a classroom discussion about the history of mathematics.

10

Leonardo da Vinci (1452-1519)  

NSDL National Science Digital Library

This is a biographical sketch of Leonardo da Vinci. Leonardo da Vinci was a painter, sculptor, architect, engineer, scientist and genius who best represents the ideals of the Renaissance period. He was one of the greatest painters of all times. Da Vinci was also a great engineer and inventor who designed buildings, bridges, canals, forts and war machines. He was fascinated by birds and flying and drew designs of fantastic flying machines.

Laboratory, Florida S.

1999-01-01

11

First experiences with the da Vinci™ operating robot in thoracic surgery  

Microsoft Academic Search

Objectives: The da Vinci™ surgical robotic system was purchased at our institution in June 2001. The aim of this trial was to evaluate the applicability of the da Vinci™ operation robot for general thoracic procedures. Methods: The da Vinci™ surgical system consists of a console connected to a surgical arm cart, a manipulator unit with two instrument arms and a

J. Bodner; H. Wykypiel; G. Wetscher; T. Schmid

2004-01-01

12

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

NASA Astrophysics Data System (ADS)

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.

Liu, Zhuang

2014-10-01

13

[Anesthetic management for robot assisted off-pump construction of composite graft using the da Vinci surgical system].  

PubMed

Robot-assisted minimally invasive surgery has become common in recent years. We used the da Vinci surgical system and managed anesthesia in 6 cases of bilateral internal mammary artery dissection and construction of a composite graft using the radial artery. To ensure vision inside the thoracic cavity, endoscopic robotic surgery employs the inflation of the thoracic cavity with carbon dioxide, producing a pneumothorax and turning the thoracic cavity into a positive pressure chamber. Thus, marked acidosis and circulatory changes manifest during anesthetic management. Although robotic surgery is considered "minimally invasive, such surgery involves a number of problems in terms of anesthetic management, and these problems must be examined. PMID:20169956

Takanashi, Yoko; Hamano, Hiroko; Miyata, Kazuto; Matsumoto, Shouhei; Isshiki, Atushi

2010-02-01

14

Programma "LEONARDO DA VINCI" Progetto UNIPHARMA-GRADUATES 9  

E-print Network

Programma "LEONARDO DA VINCI" Progetto UNIPHARMA-GRADUATES 9 Bando di Concorso 82 contributi per Programma dell'Unione Europea per l'Apprendimento Permanente ­ Programma settoriale "Leonardo da Vinci CONTRIBUTO LEONARDO DA VINCI (LdV): Il contributo LdV rappresenta un rimborso delle spese di viaggio

Guidoni, Leonardo

15

How to Think Like Leonardo da Vinci  

ERIC Educational Resources Information Center

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…

Caouette, Ralph

2008-01-01

16

Das Weimarer Anatomieblatt Leonardo da Vincis  

Microsoft Academic Search

Zum Thema Leonardo da Vinci (1452-1519) hat in seiner 2. Lebenshälfte eine Vielzahl von anatomischen Studien durchgeführt und seine Skizzenblätter zeugen nicht nur von seinem künstlerischem Können, sondern auch von seiner Stellung als Wissenschaftler. Heute befindet sich nahezu die komplette Sammlung der erhaltenen anatomischen Skizzenbücher Leonardos im Besitz des Englischen Königshauses und wird in der Royal Library in Windsor Castle

D. Schultheiss; D. Laurenza; B. Götte; U. Jonas

2000-01-01

17

Leonardo da Vinci's contributions to neuroscience  

Microsoft Academic Search

Leonardo da Vinci (1452–1519) made far-reaching contributions to many areas of science, technology and art. Leonardo's pioneering research into the brain led him to discoveries in neuroanatomy (such as those of the frontal sinus and meningeal vessels) and neurophysiology (he was the first to pith a frog). His injection of hot wax into the brain of an ox provided a

Jonathan Pevsner

2002-01-01

18

The Real Code of Leonardo da Vinci  

Microsoft Academic Search

Leonardo da Vinci was born in Italy. Among the researchers and scientists, he is favourably known for his remarkable efforts in scientific work. His investigations of atherosclerosis judiciously combine three separate fields of research. In 1506, he finished his masterpiece, painting of Mona Lisa. A careful clinical examination of the famous painting reveals a yellow irregular leather-like spot at the

Leiv Ose

2008-01-01

19

Leonardo da vinci e la matematica  

Microsoft Academic Search

Sunto  Lo scopo della presente Nota è quello di illustrare come Leonardo da Vinci, contrariamente a quanto sostengono molti autori,\\u000a possedesse un eccezionale talento matematico, una mentalità tipica dei matematici unita ad una sorprendente originalità. Numerose\\u000a sue idee furono riprese e realizzate nei secoli successivi.

I. S. Fenyö

1985-01-01

20

Leonardo da Vinci and Perpetual Motion  

Microsoft Academic Search

Leonardo da Vinci illustrated several traditional forms of perpetual-motion machine in small pocket books now known as the Codex Forster. He was well aware that these designs, based on waterwheel\\/pump combinations, mechanical overbalancing hammers or rolling balls, would notand could notwork.

Allan A. Mills

2008-01-01

21

Leonardo da Vinci's Struggles with Representations of Reality  

Microsoft Academic Search

Virtual reality systems seek to simulate real scenes so that they will be seen as three-dimensional. The issues at the heart of virtual reality are old ones. Leonardo da Vinci struggled with the differences between the perception of a scene and a painting of it, which he reduced to the differences between binocular and monocular vision. He could not produce

Nicholas J. Wade; Hiroshi Ono; Linda Lillakas

2001-01-01

22

The Real Code of Leonardo da Vinci  

PubMed Central

Leonardo da Vinci was born in Italy. Among the researchers and scientists, he is favourably known for his remarkable efforts in scientific work. His investigations of atherosclerosis judiciously combine three separate fields of research. In 1506, he finished his masterpiece, painting of Mona Lisa. A careful clinical examination of the famous painting reveals a yellow irregular leather-like spot at the inner end of the left upper eyelid and a soft bumpy well-defined swelling of the dorsum of the right hand beneath the index finger about 3 cm long. This is probably the first case of familial hypercholesterolemia (FH). The FH code of Leonardo da Vinci was given immense consideration by scientists like Carl Muller, who described the xanthomas tuberosum and angina pectoris. On the contrary, Akira Endo searched for microbial metabolites that would inhibit HMG-CoA reductase, the rate-limiting enzyme in the synthesis of cholesterol and finally, Michael Brown and Joseph Goldstein published a remarkable series of elegant and insightful papers in the 70s and 80s. They established that the cellular uptake of low-density lipoprotein (LDL) essentially requires the LDL receptor. In conclusion: this was the real Code of Leonardo da Vinci. PMID:19924278

Ose, Leiv

2008-01-01

23

A computational theory of da Vinci stereopsis.  

PubMed

In binocular vision, occlusion of one object by another gives rise to monocular occlusions—regions visible only in one eye. Although binocular disparities cannot be computed for these regions, monocular occlusions can be precisely localized in depth and can induce the perception of illusory occluding surfaces. The phenomenon of depth perception from monocular occlusions, known as da Vinci stereopsis, is intriguing, but its mechanisms are not well understood. We first propose a theory of the mechanisms underlying da Vinci stereopsis that is based on the psychophysical and computational literature on monocular occlusions. It postulates, among other principles, that monocular areas are detected explicitly, and depth from occlusions is calculated based on constraints imposed by occlusion geometry. Next, we describe a biologically inspired computational model based on this theory that successfully reconstructs depth in a large range of stimuli and produces results similar to those described in the psychophysical literature. These results demonstrate that the proposed neural architecture could underpin da Vinci stereopsis and other stereoscopic percepts. PMID:24914063

Tsirlin, Inna; Wilcox, Laurie M; Allison, Robert S

2014-01-01

24

Programma Leonardo da Vinci Progetto "Jobs4graduates-2"  

E-print Network

Programma Leonardo da Vinci Progetto "Jobs4graduates-2" Accettazione del contributo I candidati accettare la Borsa di tirocinio del Programma Leonardo da Vinci, come indicato nel formulario di candidatura, debitamente giustificata e potrà costituire motivo di esclusione da eventuali successivi progetti Leonardo da

Di Pillo, Gianni

25

The Case: Bunche-Da Vinci Learning Partnership Academy  

ERIC Educational Resources Information Center

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…

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

2005-01-01

26

Leonardo Da Vinci and stroke - vegetarian diet as a possible cause.  

PubMed

Leonardo da Vinci (April 15, 1452 to May 2, 1519) was an Italian Renaissance architect, musician, anatomist, inventor, engineer, sculptor, geometer, and painter. It has been gleaned from the many available historical documents that da Vinci was a vegetarian who respected and loved animals, and that he suffered from right hemiparesis in the last 5 years of his life. A vegetarian diet has both positive and negative influences on the cerebrovascular system. In this report, a possible relation between a vegetarian diet and stroke is discussed from various perspectives as related to Leonardo da Vinci's stroke. PMID:20375518

Oztürk, Serefnur; Altieri, Marta; Troisi, Pina

2010-01-01

27

Leonardo da Vinci's contributions to neuroscience.  

PubMed

Leonardo da Vinci (1452-1519) made far-reaching contributions to many areas of science, technology and art. Leonardo's pioneering research into the brain led him to discoveries in neuroanatomy (such as those of the frontal sinus and meningeal vessels) and neurophysiology (he was the first to pith a frog). His injection of hot wax into the brain of an ox provided a cast of the ventricles, and represents the first known use of a solidifying medium to define the shape and size of an internal body structure. Leonardo developed an original, mechanistic model of sensory physiology. He undertook his research with the broad goal of providing physical explanations of how the brain processes visual and other sensory input, and integrates that information via the soul. PMID:11998691

Pevsner, Jonathan

2002-04-01

28

Leonardo da Vinci: Founder of the science of geological facies  

Microsoft Academic Search

Existing ideas on the history of geology are refined. It is shown that Leonardo da Vinci is the founder of the science of geological facies. His principal geological concepts, which passed several centuries ahead of time, are discussed.

M. G. Berger

2005-01-01

29

Tree Branching: Leonardo da Vinci's Rule versus Biomechanical Models  

PubMed Central

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

Minamino, Ryoko; Tateno, Masaki

2014-01-01

30

Leonardo da Vinci on atherosclerosis and the function of the sinuses of Valsalva  

Microsoft Academic Search

lthough well studied by a medical scholar like Kenneth D. Keele, 1 Leonardo da Vinci’s elaborate study of the heart is not generally known. This article focuses on two of Leonardo’s achievements concerning atherosclerosis and the sinuses of Valsalva. 2 The first is his post-mortem observation on the degeneration of the vascular system in an old man, an early case

B. Boon

31

Leonardo da Vinci on atherosclerosis and the function of the sinuses of Valsalva  

Microsoft Academic Search

\\u000a Abstract  Although well studied by a medical scholar like Kenneth D. Keele, Leonardo da Vinci’s elaborate study of the heart is not\\u000a generally known. This article focuses on two of Leonardo’s achievements concerning atherosclerosis and the sinuses of Valsalva.\\u000a The first is his post-mortem observation on the degeneration of the vascular system in an old man, an early case history.

B. Boon

2009-01-01

32

Appropriate set-up of the da Vinci Surgical System in relation to the location of anterior and middle mediastinal tumors.  

PubMed

The da Vinci® Surgical System (dV) and its later version [da Vinci S® Surgical System (dVS)] have been used only in very few cases in selected thoracic surgical areas in Japan. Recently, we used the dV and dVS for various types of anterior and middle mediastinal tumors in clinical practice. We report our experience, and review the settings which depended on tumor location. Six patients gave written informed consent to undergo robotic surgery using the dV or dVS. We evaluated the feasibility, safety and appropriate settings of this system for the surgical treatment of mediastinal tumors. Tumor dissection was performed by two specialists in thoracic surgery certified to use the dV and dVS, and another specialist who acted as an assistant. We were able to access difficult-to-reach areas like the mediastinum. All the resected tumors were classified as benign tumors histologically. Crucial to the success of these operations was the set-up of the dV, which varied according to the location of mediastinal tumors. Robotic surgery enables various types of mediastinal tumor dissection more safely and easily than conventional video-assisted thoracoscopic surgery (VATS). The dV requires the appropriate set-up configuration, which varies according to the location of the mediastinal tumor. PMID:21081552

Kajiwara, Naohiro; Kakihana, Masatoshi; Kawate, Norihiko; Ikeda, Norihiko

2011-02-01

33

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

SciTech Connect

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.

Pisch, Julianna [Department of Radiation Oncology and Physics, Beth Israel and St. Luke's-Roosevelt Medical Center, New York, NY (United States)]. E-mail: jpisch@bethisraelny.org; Belsley, Scott J. [Department of Thoracic Surgery, Beth Israel and St. Luke's-Roosevelt Medical Center, New York, NY (United States); Ashton, Robert [Department of Thoracic Surgery, Beth Israel and St. Luke's-Roosevelt Medical Center, New York, NY (United States); Wang Lin [Department of Radiation Oncology and Physics, Beth Israel and St. Luke's-Roosevelt Medical Center, New York, NY (United States); Woode, Rudolph [Department of Radiation Oncology and Physics, Beth Israel and St. Luke's-Roosevelt Medical Center, New York, NY (United States); Connery, Cliff [Department of Thoracic Surgery, Beth Israel and St. Luke's-Roosevelt Medical Center, New York, NY (United States)

2004-11-01

34

Leonardo da Vinci (1452-1519)  

Microsoft Academic Search

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

P. Murdin

2000-01-01

35

Leonardo da Vinci (1452-1519)  

NASA Astrophysics Data System (ADS)

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...

Murdin, P.

2000-11-01

36

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

PubMed Central

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

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

2014-01-01

37

The Potential da Vinci in All of Us  

ERIC Educational Resources Information Center

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…

Petto, Sarah; Petto, Andrew

2009-01-01

38

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

ERIC Educational Resources Information Center

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…

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

39

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

ERIC Educational Resources Information Center

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…

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

40

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

ERIC Educational Resources Information Center

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…

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

41

Sine ars scientia nihil est: Leonardo da Vinci and beyond  

Microsoft Academic Search

The aim of this article is to reflect on the relationship between art and science so far as it concerns a symposium on neurosciences. We undertake a historical overview of that relationship, paying particular attention to the sui generis case of Leonardo da Vinci, who very often is regarded as the man who worked on art and science with equal

Eduardo H. P. Kickhöfel

2009-01-01

42

A Film on Leonardo da Vinci by Luciano Emmer  

Microsoft Academic Search

Leonardo da Vinci probably did not consider the possibility of realizing images with real movement. Many centuries later, however, the author's father, Luciano Emmer, had the idea of reinterpreting the images of the famous artist and scientist using the technique of cinema.

Michele Emmer

2009-01-01

43

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

E-print Network

. Visual feedback is already available in commercial robotic surgery systems (e.g., the Intuitive SurgicalCutaneous Feedback of Planar Fingertip Deformation and Vibration on a da Vinci Surgical RobotDept. of Advanced Robotics, Istituto Italiano di Tecnologia, Italy. 3Dept. of Mechanical Engineering

Siena, Università di

44

Da Vinci's codex and the anatomy of healthcare.  

PubMed

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

Stephens-Borg, Keith

2012-08-01

45

Visual tracking of da Vinci instruments for laparoscopic surgery  

NASA Astrophysics Data System (ADS)

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.

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

2014-03-01

46

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

ERIC Educational Resources Information Center

"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…

Chaucer, Harry

2012-01-01

47

Leonardo da Vinci and Stroke – Vegetarian Diet as a Possible Cause  

Microsoft Academic Search

Leonardo da Vinci (April 15, 1452 to May 2, 1519) was an Italian Renaissance architect, musician, anatomist, inventor, engineer, sculptor, geometer, and painter. It has been gleaned from the many available historical documents that da Vinci was a vegetarian who respected and loved animals, and that he suffered from right hemiparesis in the last 5 years of his life. A

Marta Altieri; Pina Troisi

2010-01-01

48

Page 1 of 4 Real-Time Visualization of the "da Vinci" Surgical Robot  

E-print Network

Page 1 of 4 Real-Time Visualization of the "da Vinci" Surgical Robot Dan Morris, Stanford) The "da Vinci" Surgical Robot allows a surgeon ­ controlling a robot from a manipulator console ­ to perform minimally invasive laparoscopic surgeries that would be difficult or impossible to perform

Salisbury, Kenneth

49

Leonardo da Vinci and the Art of Sculpture  

NSDL National Science Digital Library

This website from the Getty Museum accompanies the exhibition "Leonardo da Vinci and the Art of Sculpture: Inspiration and Invention", organized by the High Museum of Art, Atlanta, and on display in Los Angeles until June 20th, 2010. The website features a slide show with images of 11 works of art, some by Leonardo and some by other artists, including older artists who influenced Leonardo and his followers. An image of Donatello's Bearded Prophet, 1418-20, is accompanied by audio discussing Donatello's impact on Leonardo, while the last three slides examine the master/pupil relationship between Leonardo and a younger artist, Giovanni Francesco Rustici, 1475-1554. Visitors to the site can also listen to an introduction to the exhibition that lays out its overall intent from co-curator Julian Brooks.

50

Leonardo da Vinci: the search for the soul.  

PubMed

The human race has always contemplated the question of the anatomical location of the soul. During the Renaissance the controversy crystallized into those individuals who supported the heart ("cardiocentric soul") and others who supported the brain ("cephalocentric soul") as the abode for this elusive entity. Leonardo da Vinci (1452-1519) joined a long list of other explorers in the "search for the soul." The method he used to resolve this anatomical problem involved the accumulation of information from ancient and contemporary sources, careful notetaking, discussions with acknowledged experts, and his own personal search for the truth. Leonardo used a myriad of innovative methods acquired from his knowledge of painting, sculpture, and architecture to define more clearly the site of the "senso comune"--the soul. In this review the author examines the sources of this ancient question, the knowledge base tapped by Leonardo for his personal search for the soul, and the views of key individuals who followed him. PMID:9817431

Del Maestro, R F

1998-11-01

51

Maintenance mechanisms of the pipe model relationship and Leonardo da Vinci’s rule in the branching architecture of Acer rufinerve trees  

Microsoft Academic Search

The pipe model relationship (constancy of branch cross-sectional area\\/leaf area) and Leonardo da Vinci’s rule (equality of\\u000a total cross-sectional area of the daughter branches and cross-sectional area of their mother branch) are empirical rules of\\u000a tree branching. Effects of branch manipulation on the pipe model relationships were examined using five Acer rufinerve trees. Half the branches in each tree were

Kosei Sone; Alata Antonio Suzuki; Shin-Ichi Miyazawa; Ko Noguchi; Ichiro Terashima

2009-01-01

52

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

PubMed

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

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

2010-08-01

53

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

ERIC Educational Resources Information Center

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.…

Bjornavold, Jens; Pettersson, Sten

54

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

ERIC Educational Resources Information Center

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)

Le Magazine, 1996

1996-01-01

55

Tenure denied! not ready for promotion! no merit pay increase! poor Leonardo da Vinci!  

Microsoft Academic Search

Most academic institutions convey to faculty that they must have a clearly identified single or dual stream of research. Such a standard inhibits expertise. It stifles creativity and innovation and results in faculty unable to deal effectively with a broad range of doctoral students. People like Leonardo da Vinci, and other outstanding experts, fall outside of such a standard and,

Gary N. McLean

2007-01-01

56

From Sfumato to Transarchitectures and Osmose: Leonardo da Vinci's Virtual Reality  

Microsoft Academic Search

This paper explores the ways in which Leonardo da Vinci's anachronistic skepticism of Renaissance perspective and his subsequent invention of sfumato prefigure contemporary digital technology and its ability to literalize this formal technique. Marcos Novak and Char Davies offer parallel theories on the permeable boundaries among objects and between physical and virtual worlds. The resultant theories, like those of Leonardo,

Cami Nelson

2009-01-01

57

LEONARDO DA VINCI'S TENSILE STRENGTH TESTS: IMPLICATIONS FOR THE DISCOVERY OF ENGINEERING MECHANICS  

Microsoft Academic Search

In one of Leonardo Da Vinci's notebooks, an experiment is described where strengths in tension are measured for various lengths of wire. The notebook indicates that the results of these experiments were that longer wires were weaker than shorter wires. This result defies classical mechanics of materials. This conflict has been explained as a note-taking failure by Leonardo. This short

JAY R. LUND; JOSEPH P. BYRNE

2001-01-01

58

The proportion of the face in younger adults using the thumb rule of leonardo da vinci  

Microsoft Academic Search

The present study was conducted to examine whether the thumb rule of Leonardo da Vinci could be an objective method in the determination of the natural and artistic proportions of human face. In this study, a sample of 400 subjects (200 male and 200 female, 22–25 years old) was used. Measurements were made of the length of thumb, the length

Ö Oguz

1996-01-01

59

Leonardo da vinci, omo sanza lettere: A case of surface dysgraphia?  

Microsoft Academic Search

This paper is intended to analyse Leonardo da Vinci's orthography from a neuropsychological perspective. In his writings many errors are found which are never made by normal subjects as slips of the pen and are specific to a neuropsychological disorder known as surface dysgraphia. Evidence is also given in support of the hypothesis that Leonardo suffered from an analogous disorder

Giuseppe Sartori

1987-01-01

60

From Leonardo to da Vinci: the history of robot-assisted surgery in urology.  

PubMed

What's known on the subject? and What does the study add? Numerous urological procedures can now be performed with robotic assistance. Though not definitely proven to be superior to conventional laparoscopy or traditional open surgery in the setting of a randomised trial, in experienced centres robot-assisted surgery allows for excellent surgical outcomes and is a valuable tool to augment modern surgical practice. Our review highlights the depth of history that underpins the robotic surgical platform we utilise today, whilst also detailing the current place of robot-assisted surgery in urology in 2011. The evolution of robots in general and as platforms to augment surgical practice is an intriguing story that spans cultures, continents and centuries. A timeline from Yan Shi (1023-957 bc), Archytas of Tarentum (400 bc), Aristotle (322 bc), Heron of Alexandria (10-70 ad), Leonardo da Vinci (1495), the Industrial Revolution (1790), 'telepresence' (1950) and to the da Vinci(®) Surgical System (1999), shows the incredible depth of history and development that underpins the modern surgical robot we use to treat our patients. Robot-assisted surgery is now well-established in Urology and although not currently regarded as a 'gold standard' approach for any urological procedure, it is being increasingly used for index operations of the prostate, kidney and bladder. We perceive that robotic evolution will continue infinitely, securing the place of robots in the history of Urological surgery. Herein, we detail the history of robots in general, in surgery and in Urology, highlighting the current place of robot-assisted surgery in radical prostatectomy, partial nephrectomy, pyeloplasty and radical cystectomy. PMID:21951677

Yates, David R; Vaessen, Christophe; Roupret, Morgan

2011-12-01

61

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

NASA Astrophysics Data System (ADS)

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.

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

2014-06-01

62

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

ERIC Educational Resources Information Center

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…

McManus, I. C.; Drury, Helena

2004-01-01

63

Urodynamics in the anatomical work of Leonardo da Vinci (1452–1519)  

Microsoft Academic Search

Leonardo da Vinci (1452–1519) incorporates the symbiosis of art and medicine and can be adressed as the founder of medical\\u000a illustration in the time of the Renaissance. His anatomy studies were not published in his time, which explains why Leonardo's\\u000a outstanding knowledge of anatomy, physiology, and medicine had no impact on his scientific contemporaries and is therefore\\u000a primarily of retrospective

Dirk Schultheiss; Volker Grünewald; Udo Jonas

1999-01-01

64

The handedness of Leonardo da Vinci: A tale of the complexities of lateralisation  

Microsoft Academic Search

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 result

I. C. McManus; Helena Drury

2004-01-01

65

Da venerd 28 marzo, per un giorno al mese, secondo il calendario riportato nel seguito il CAM (Centro Ambientale Mobile) di AMSA sar presente in Piazza Leonardo da Vinci per sensibilizzare il quartiere di  

E-print Network

(Centro Ambientale Mobile) di AMSA sarà presente in Piazza Leonardo da Vinci per sensibilizzare il Centro Ambientale Mobile di AMSA approda in Piazza Leonardo da Vinci Per ulteriori informazioni è informazione e comunicazione diretta tra AMSA ed i cittadini. La presenza del CAM in Piazza Leonardo da Vinci

66

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

PubMed

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

Le Floch-Prigent, P

2008-12-01

67

OCT structural examination of Madonna dei Fusi by Leonardo da Vinci  

NASA Astrophysics Data System (ADS)

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.

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

2013-05-01

68

X CONVEGNO ANNUALE CODAU 2012 Segreteria Codau c/o Politecnico di Milano Piazza Leonardo da Vinci, 32 20133 Milano  

E-print Network

X CONVEGNO ANNUALE CODAU 2012 Segreteria Codau c/o Politecnico di Milano Piazza Leonardo da #12; X CONVEGNO ANNUALE CODAU 2012 Segreteria Codau c/o Politecnico di Milano Piazza Leonardo da Vinci, 32 20133 Milano tel. 0223992001 fax 0223992225 email: segreteria@codau.it ­ www

Schettini, Raimondo

69

To give or to send to Servizio Offerta Formativa Post Laurea -Campus Leonardo Edificio 2 -Piazza Leonardo da Vinci, 32 20133 Milano -Italy  

E-print Network

- Piazza Leonardo da Vinci, 32 ­ 20133 Milano - Italy Stamp duty at current value CERTIFICATES ON STAMPED Formativa Post Laurea ­ Campus Leonardo ­ Piazza Leonardo da Vinci, 32 ­ Padiglione Nord ­ Edificio 2To give or to send to Servizio Offerta Formativa Post Laurea - Campus Leonardo ­ Edificio 2

70

Realization and optimization of AES algorithm on the TMS320DM6446 based on DaVinci technology  

NASA Astrophysics Data System (ADS)

The application of AES algorithm in the digital cinema system avoids video data to be illegal theft or malicious tampering, and solves its security problems. At the same time, in order to meet the requirements of the real-time, scene and transparent encryption of high-speed data streams of audio and video in the information security field, through the in-depth analysis of AES algorithm principle, based on the hardware platform of TMS320DM6446, with the software framework structure of DaVinci, this paper proposes the specific realization methods of AES algorithm in digital video system and its optimization solutions. The test results show digital movies encrypted by AES128 can not play normally, which ensures the security of digital movies. Through the comparison of the performance of AES128 algorithm before optimization and after, the correctness and validity of improved algorithm is verified.

Jia, Wen-bin; Xiao, Fu-hai

2013-03-01

71

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

ERIC Educational Resources Information Center

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…

Frattari, Antonio; Dalpra, Michela; Bernardi, Fabio

2013-01-01

72

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

ERIC Educational Resources Information Center

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…

Valjus, Sonja

73

Science in the Art of the Italian Renaissance II: Leonardo Da Vinci's Representation of Animals in His Works1  

Microsoft Academic Search

Leonardo Da Vinci combined science and art in a number of his works and studies. This combina- tion of science and art is very evident in the depiction of animals in his works. Leonardo studied both the anatomy and physiology of animals in order to render them with scientific precision. This included dissections of numerous animals and studies on their

DOUGLAS D. KANE

2002-01-01

74

Mellon Scholars Program: Leonardo da Vinci, Francis I, and the Struggle for International Prestige in 16th-Century France  

Microsoft Academic Search

Leonardo da Vinci spent his final years at the Manoir du Cloux in the company of the French King, Francis I. In competition with other European states, Francis I did everything he could to forge an image of France as strong, balanced, and formidable—and the arts were an essential part of his quest for prestige. For that reason the King

Athina Alvarez

2011-01-01

75

Urodynamics in the anatomical work of Leonardo da Vinci (1452-1519).  

PubMed

Leonardo da Vinci (1452-1519) incorporates the symbiosis of art and medicine and can be addressed as the founder of medical illustration in the time of the Renaissance. His anatomy studies were not published in his time, which explains why Leonardo's outstanding knowledge of anatomy, physiology, and medicine had no impact on his scientific contemporaries and is therefore primarily of retrospective importance in the history of medicine. The collection of anatomical illustrations remained unknown until their rediscovery in the eighteenth century and their wide publication at the beginning of our century. This article systematically reviews Leonardo's genitourinary drawings with regard to urodynamic aspects of the upper and lower urinary tract, highlighting topics such as vesicoureteral reflux and urinary sphincter mechanisms. PMID:10418086

Schultheiss, D; Grünewald, V; Jonas, U

1999-06-01

76

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

PubMed Central

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

Moroni, Catia; Pasquariello, Giovanna; Maggi, Oriana

2014-01-01

77

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

PubMed

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

Abrishami, Payam; Boer, Albert; Horstman, Klasien

2014-09-01

78

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

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);…

Lasonen, Johanna, Ed.

79

Leonardo da Vinci, Andreas Vesalius, Carlo Ruini, Jean Héroard und die Anatomie des Pferdes im 16. Jahrhundert  

Microsoft Academic Search

1.Die Anatomia del cavallo (1598) ist nicht in Anlehnung an Leonardo da Vinci, sondern2.an Vesals Fabrica entstanden,3.ebenso Héroards Hippostologie (1599). Diese stellt den dem Autor verbliebenen Rest seiner die ganze Anatomie des Pferdes samt anschließender Krankheitslehre umfassenden Arbeit dar,4.deren übrige Teile vermutlich von Carlo Ruini und dessen Neffen Orazio Francini umgestaltet und im Jahre 1598 zu Bologna in Druck gegeben

Richard Schmutzer

1943-01-01

80

Educating in the design and construction of built environments accessible to disabled people: the Leonardo da Vinci AWARD project  

Microsoft Academic Search

An interdisciplinary partnership within an European Leonardo da Vinci project has developed a new approach aimed at educating\\u000a secondary school students in the creation of built environments accessible to disabled people and at sensitizing them towards\\u000a the inclusion of people with disabilities in all realms of social life. The AWARD (Accessible World for All Respecting Differences)\\u000a project is based on

Antonio Frattari; Michela Dalprà; Fabio Bernardi

81

Maintenance mechanisms of the pipe model relationship and Leonardo da Vinci's rule in the branching architecture of Acer rufinerve trees.  

PubMed

The pipe model relationship (constancy of branch cross-sectional area/leaf area) and Leonardo da Vinci's rule (equality of total cross-sectional area of the daughter branches and cross-sectional area of their mother branch) are empirical rules of tree branching. Effects of branch manipulation on the pipe model relationships were examined using five Acer rufinerve trees. Half the branches in each tree were untreated (control branches, CBs), and, for the others (manipulated branches, MBs), either light intensity or leaf area (both relating to photosynthetic source activity), or shoot elongation (source + sink activities), was reduced, and responses of the pipe model relationships were followed for 2 years. The pipe model relationship in MBs changed by suppression of source activity, but not by simultaneous suppression of source + sink activities. The manipulations also affected CBs in the year of manipulation and both branches in the next year. The branch diameter growth was most affected by light, followed by shoot elongation and leaf area, in that order. Because of the decussate phyllotaxis of A. rufinerve, one branching node can potentially have one main and two lateral branches. Analysis of 295 branching nodes from 13 untreated trees revealed that the da Vinci's rule held in branching nodes having one shed branch but not in the nodes without branch shedding, indicating the necessity of natural shedding of branches for da Vinci's rule to hold. These analyses highlight the importance of the source-sink balance and branch shedding in maintenance of these empirical rules. PMID:18690411

Sone, Kosei; Suzuki, Alata Antonio; Miyazawa, Shin-Ichi; Noguchi, Ko; Terashima, Ichiro

2009-01-01

82

Leonardo da Vinci's "A skull sectioned": skull and dental formula revisited.  

PubMed

What can be learned from historical anatomical drawings and how to incorporate these drawings into anatomical teaching? The drawing "A skull sectioned" (RL 19058v) by Leonardo da Vinci (1452-1519), hides more detailed information than reported earlier. A well-chosen section cut explores sectioned paranasal sinuses and ductus nasolacrimalis. A dissected lateral wall of the maxilla is also present. Furthermore, at the level of the foramen mentale, the drawing displays compact and spongious bony components, together with a cross-section through the foramen mentale and its connection with the canalis mandibulae. Leonardo was the first to describe a correct dental formula (6424) and made efforts to place this formula above the related dental elements. However, taking into account, the morphological features of the individual elements of the maxilla, it can be suggested that Leonardo sketched a "peculiar dental element" on the position of the right maxillary premolar in the dental sketch. The fact that the author did not make any comment on that special element is remarkable. Leonardo could have had sufficient knowledge of the precise morphology of maxillary and mandibular premolars, since the author depicted these elements in the dissected skull. The fact that the author also had access to premolars in situ corroborates our suggestion that "something went wrong" in this part of the drawing. The present study shows that historical anatomical drawings are very useful for interactive learning of detailed anatomy for students in medicine and dentistry. PMID:22431331

Gerrits, Peter O; Veening, Jan G

2013-05-01

83

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

NASA Astrophysics Data System (ADS)

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.

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

2005-06-01

84

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

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…

Beck, Bernard

2007-01-01

85

A Contemporary Version of the Grail Quest: Dan Brown's The Da Vinci Code and its failed appropriation of the mythic legend  

Microsoft Academic Search

Myth can often be seen to supply a response to the yearning of the world, and the legend of the Holy Grail is no exception. The latest version of the quest, Dan Brown's novel The Da Vinci Code, reveals the two sides of the coin that make a mythic symbol mysterious, unattainable, and yet so tantalisingly real. On the one

Geoff Berry

86

Het wezen van de schilderkunst volgens Leonardo da Vinci : over de verhouding tussen kunsttheorie en de praktijk van de schilder in de Renaissance  

Microsoft Academic Search

Op 19 oktober houdt prof. dr. Michael Kwakkelstein zijn oratie aan de Universiteit Utrecht over de verhouding tussen kunsttheorie en -praktijk bij Leonardo da Vinci. Kwakkelstein stelt dat Leonardo’s schilderkunst niet altijd beantwoordt aan de criteria voor goede schilderkunst die de grote Renaissance-kunstenaar zelf heeft geformuleerd. In de 'Mona Lisa' liet Leonardo theorie en praktijk echter op ultieme wijze samenvallen.

M. W. Kwakkelstein

2011-01-01

87

SELF GUIDED SELF-ASSESSMENT AND IMPROVEMENT OF VOCATIONAL AND CAREER COUNSELLING SKILLS: NEW STANDARDS AND TOOLS FOR COUNSELLORS DEVELOPED IN THE LEONARDO DA VINCI PROJECT MEVOC  

Microsoft Academic Search

The aim of the Leonardo da Vinci project MEVOC2 is to develop an international quality assurance programme for vocational and career counsellors. The project products include international competence standards for vocational and career counsellors, a self-assessment tool to be used by vocational and career counsellors in order to evaluate the quality of their counselling skills and competences, and a database

JULIA ZDRAHAL-URBANEK; MONIKA THUM-KRAFT

88

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

PubMed

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

Missinne, Stefaan J

2014-06-01

89

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

NASA Astrophysics Data System (ADS)

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.

Tyler, Christopher W.

2010-02-01

90

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

PubMed

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

Story, Lachel; Butts, Janie

2014-03-01

91

Michelangelo in Florence, Leonardo in Vinci.  

ERIC Educational Resources Information Center

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)

Herberholz, Barbara

2003-01-01

92

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

PubMed

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

Kim, Hyung L; Schulam, Peter

2004-11-01

93

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

NASA Astrophysics Data System (ADS)

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.

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

2007-02-01

94

VINCI: the VLT Interferometer commissioning instrument  

NASA Astrophysics Data System (ADS)

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.

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

2000-07-01

95

Feasibility of an endoscopic approach to the axillary nerve and the nerve to the long head of the triceps brachii with the help of the Da Vinci Robot.  

PubMed

Surgery to transfer the axillary nerve and the nerve of the long head of the triceps presents two obstacles: 1) the access portals are not standardized and 2) the nerves are for their larger part approached through large incisions. The goal of this study was to explore the feasibility of an endoscopic microsurgical approach. The posterior aspect of a cadaver shoulder was approached through three communicating mini-incisions. The Da Vinci robot camera was installed on a central trocart, and the instrument arms on the adjacent trocarts. A gas insufflation distended the soft tissues up to the lateral axillary space. The branches of the axillary nerve and the nerve to the long head of the triceps brachii muscle were identified. The dissection of the axillary nerve trunk and its branches was easy. The posterior humeral circumflex veins and artery were dissected as well without any difficulty. Finding the nerve to the long head of the triceps brachii was found to be more challenging because of its deeper location. Robots properties allow performing conventional microsurgery: elimination of the physiologic tremor and multiplication of the movements. They also facilitate the endoscopic approach of the peripheral nerves, as seen in our results on the terminal branches of the axillary nerve and the nerve to the long head of the triceps brachii. PMID:23867724

Porto de Melo, P M; Garcia, J C; Montero, E F de Souza; Atik, T; Robert, E-G; Facca, S; Liverneaux, P-A

2013-09-01

96

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

Microsoft Academic Search

We present the first near-infrared K-band long-baseline interferometric measurement of the nucleus 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 8.2 m diameter Unit Telescopes UT 2 and UT 3. The adaptive optics system MACAO (Multi Application Curvature Adaptive Optics) was employed to

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

2004-01-01

97

Spectral imaging of Leonardo Da Vinci's Mona Lisa: An authentic smile at 1523 dpi with additional infrared data  

Microsoft Academic Search

Two photos of the famous Mona Lisa were taken in October 2004 to contribute towards improving the technical and scientific data of the masterpiece before moving it in April 2005. The capabilities of the multispectral system developed by the LUMIERE TECHNOLOGY Company within the scope of the European CRISATEL project have made it possible to achieve optimal spatial resolution on

P. Cotte; D. Dupraz

98

Non-contact intrawall penetrating radar for heritage survey: the search of the ‘Battle of Anghiari’ by Leonardo da Vinci  

Microsoft Academic Search

In this paper a high-frequency large-bandwidth synthetic aperture penetrating radar intended for the inspection of masonry walls, and its application to intrawall investigation of an important Heritage structure in Florence, Italy, are described. The radar system has been conceived and designed for non-contact operation, in particular for allowing walls covered by paintings to be inspected avoiding damages to the surface

M. Pieraccini; D. Mecatti; G. Luzia; M. Seracini; G. Pinelli; C. Atzeni

2005-01-01

99

A second Leonardo da Vinci?  

Microsoft Academic Search

We describe a young woman who suddenly began mirror writing with her right hand and has not reverted to normal writing for more than 6 years, although she writes normally with her left hand. She is ambidextrous, although she had previously used only her right hand for writing and drawing. Since it is much easier for her to use right-handed

Mitsuko Nakano; Toshitaka Endo; Shigeki Tanaka

2003-01-01

100

La perspective arienne de Lonard de Vinci et ses origines dans l'optique d'Ibn al-Haytham (De aspectibus, III, 7)  

E-print Network

for the first time by Leonardo da Vinci (1452- 1519). This article studies its dependence on Ptolemy's Optica Léonard de Vinci (1452-1519). L'article étu- die sa dépendance vis-à-vis de l'Optique de Ptolémée et perspective aérienne Léonard de Vinci (1452-1519) est tenu pour l'inventeur de la « perspective aérienne

Paris-Sud XI, Université de

101

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

102

Tourism. Leonardo da Vinci Series: Good Practices.  

ERIC Educational Resources Information Center

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…

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

103

www.deepsummeracademy.com Da Vinci Engineering  

E-print Network

diverse pre- university programs in North America. We offer 40 engineering, science, applied science Change the World A World of Water Solar Energy Materials & Cells Sustainable Transportation Engineering

Sislian, J. P.

104

NOTE PER RICHIESTA DUPLICATO PERGAMENA 1. Compilare la domanda di rilascio duplicato pergamena con marca da bollo di  

E-print Network

Sviluppo e Rapporti con le Imprese ­ Servizio Offerta Formativa Post Laurea ­ Piazza Leonardo da Vinci, 32 Offerta Formativa Post Laurea in Piazza Leonardo da Vinci, 32 ­ Padiglione Nord ­ 1° piano ­ Milano Ritiro titolare presso il Servizio Offerta Formativa e Post Laurea in Piazza Leonardo da Vinci, 32 ­ Padiglione

105

Building Systems: Passing Fad or Basic Tool?  

ERIC Educational Resources Information Center

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…

Rezab, Donald

106

Putting Dreyfus into Action: The European Credit Transfer System  

ERIC Educational Resources Information Center

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.…

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

2008-01-01

107

DA CONSEGNARE A MANO O SPEDIRE PER POSTA A SERVIZIO OFFERTA FORMATIVA POST LAUREA-POLITECNICO DI MILANO CAMPUS LEONARDO EDIFICO 2 PIAZZA  

E-print Network

MILANO ­ CAMPUS LEONARDO ­ EDIFICO 2 ­ PIAZZA LEONARDO DA VINCI, 32 ­ 20133 MILANO - ITALY Marca da bollo Formativa Post Laurea ­ Campus Leonardo ­ Piazza Leonardo da Vinci, 32 ­ Padiglione Nord ­ Edificio 2 diDA CONSEGNARE A MANO O SPEDIRE PER POSTA A SERVIZIO OFFERTA FORMATIVA POST LAUREA- POLITECNICO DI

108

Products of HYPOS - DILETR project: distance learning courses in design and operation of Hybrid Power Systems  

Microsoft Academic Search

The purpose of HYPOS-DILETR project (funded by the Leonardo da Vinci Programme - DG Education & Training) was to develop a tool for organizing attractive European distance learning in designing, operation and monitoring of the hybrid power systems (HPS). Energy planners, decision makers, engineers in energy generation and transportation, as well as technical personnel of regional environment\\/energy agencies, from different

Silvian FARA; Dumitru FINTA; Mihai IANCU; Laurentiu FARA; Charalambos MALAMATENIOS

2006-01-01

109

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

ERIC Educational Resources Information Center

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…

Rekkedal, Torstein; Dye, Aleksander

2007-01-01

110

Distance Learning. Leonardo da Vinci Series: Good Practices.  

ERIC Educational Resources Information Center

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…

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

111

Leonardo da Vinci's (1452-1519) urologisch-anatomische Zeichnungen  

Microsoft Academic Search

Zum Thema Der wesentliche Wandel in der zeichnerischen Wiedergabe urologisch-anatomischer Strukturen wird erstmals im Zeitalter der Renaissance sichtbar. In dieser Periode wurde durch das Zusammenwirken von Künstlern und Ärzten insbesondere bei letzteren der Wunsch rege, auch die inneren Organe des Menschen realistisch abzubilden. Dies war ohne künstlerische Unterstützung nicht möglich, es sei denn, der Anatom war außerdem zeichnerisch außerordentlich begabt.

H. Dietrich

1997-01-01

112

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

ERIC Educational Resources Information Center

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…

Struthers, Sally A.

113

A Micro Wireless Video Transmission System  

Microsoft Academic Search

\\u000a The paper introduces a micro embedded wireless video transmission system based on WIFI. The system communication is based\\u000a on C\\/S structure. Server takes the TI DaVinci technology to process video and uses H.264 for video compression before transmission.\\u000a Realization of four modules for the server is introduced. All the hardware were designed and made into a micro wireless video\\u000a transmission

Yong-ming Yang; Xue-jun Chen; Wei He; Yu-xing Mao

114

Early experiences of endoscopic procedures in general surgery assisted by a computer-enhanced surgical system  

Microsoft Academic Search

  We performed a variety of complete total endoscopic general surgical procedures, including colon resection, distal gastrectomy,\\u000a and splenectomy, successfully with the assistance of the da Vinci computer-enhanced surgical system. The robotic system allowed\\u000a us to manipulate the endoscopic instruments as effectively as during open surgery. It enhanced visualization of both the operative\\u000a field and precision of the necessary techniques, as

M. Hashizume; M. Shimada; M. Tomikawa; Y. Ikeda; I. Takahashi; R. Abe; F. Koga; N. Gotoh; K. Konishi; S. Maehara; K. Sugimachi

2002-01-01

115

A Versatile System for Computer Integrated Mini-invasive Robotic Surgery  

Microsoft Academic Search

This paper presents a versatile system that aims at enhancing minimally invasive robotic surgery through patient dependent\\u000a optimized planning, realistic simulation and safe supervision. The underlying architecture of the proposed approach is presented,\\u000a then each component is detailed and illustrated with experimental examples. In particular, an instantiation with the Da Vinci™\\u000a [1] robot for performing cardiac surgery is used as

Louaï Adhami; Ève Coste-manière

2002-01-01

116

Interferometric observations of ? Carinae with VINCI/VLTI  

NASA Astrophysics Data System (ADS)

Context: The bright star ? 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 ? 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 ? Car, part of which were analyzed by Van Boekel et al. (2003, A&A, 410, L37). These observations were carried out on projected baselines ranging from 8 to 112 m in length, using either two 0.35 m siderostats or two 8-m 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 ? 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 ? Car as a function of spatial frequency follows closely an exponential model. Table 1 is only available in electronic form at http://www.aanda.org

Kervella, P.

2007-03-01

117

The ATLAS PanDA Monitoring System and its Evolution  

NASA Astrophysics Data System (ADS)

The PanDA (Production and Distributed Analysis) Workload Management System is used for ATLAS distributed production and analysis worldwide. The needs of ATLAS global computing imposed challenging requirements on the design of PanDA in areas such as scalability, robustness, automation, diagnostics, and usability for both production shifters and analysis users. Through a system-wide job database, the PanDA monitor provides a comprehensive and coherent view of the system and job execution, from high level summaries to detailed drill-down job diagnostics. It is (like the rest of PanDA) an Apache-based Python application backed by Oracle. The presentation layer is HTML code generated on the fly in the Python application which is also responsible for managing database queries. However, this approach is lacking in user interface flexibility, simplicity of communication with external systems, and ease of maintenance. A decision was therefore made to migrate the PanDA monitor server to Django Web Application Framework and apply JSON/AJAX technology in the browser front end. This allows us to greatly reduce the amount of application code, separate data preparation from presentation, leverage open source for tools such as authentication and authorization mechanisms, and provide a richer and more dynamic user experience. We describe our approach, design and initial experience with the migration process.

Klimentov, A.; Nevski, P.; Potekhin, M.; Wenaus, T.

2011-12-01

118

System for robot-assisted real-time laparoscopic ultrasound elastography  

NASA Astrophysics Data System (ADS)

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.

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

2012-02-01

119

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

ERIC Educational Resources Information Center

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)…

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

120

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

ERIC Educational Resources Information Center

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…

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

121

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

ERIC Educational Resources Information Center

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…

Dealtry, Richard; Howard, Keith

2008-01-01

122

Da vinci coding? Using renaissance artists' depictions of the brain to engage student interest in neuroanatomy.  

PubMed

This report describes a pair of brief, interactive classroom exercises utilizing Renaissance artists' depictions of the brain to help increase student interest in learning basic neuroanatomy. Undergraduate students provided anonymous quantitative evaluations of both exercises. The feedback data suggest that students found both exercises engaging. The data also suggest that the first exercise increased student interest in learning more about neuroanatomy in general, while the second provided useful practice in identifying major neuroanatomical structures. Overall, the data suggest that these exercises may be a useful addition to courses that introduce or review neuroanatomical concepts. PMID:23805058

Watson, Todd D

2013-01-01

123

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

E-print Network

, folio 76 v. Biblioteca Ambrosiana di Milano) #12;Galileo Galilei (Pisa, 1564 - Arcetri, 1642): Discorsi of falling bodies, a law deduced by Galileo's experiments and enunciated by Torricelli in 1642. constant 2 1

Ballarini, Roberto

124

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

ERIC Educational Resources Information Center

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…

Babaian, C.

2009-01-01

125

A Contribution to the History of Cam Mechanisms – From Leonardo da Vinci Till Today  

Microsoft Academic Search

Cams and cam mechanisms are widely spread in mechanical engineering design, mostly to transform uniform rotary motion into\\u000a non-uniform rotary motion or into linear motion. Sometimes cams and cam mechanisms are coupled with linkages, thus giving\\u000a a broader variety of output motions and applications. From the historical point of view it is possible to derive cam mechanisms\\u000a from some of

Hanfried Kerle; Klaus Mauersberger

126

Roles and Delegation of Authority (R/DA) System  

SciTech Connect

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. The purpose of this report is to present a framework or architecture for creating a R/DA system and provide some insights associated with its design and utilization. To improve understanding and clarify subsequent discussion, the goals and requirements for the major R/DA system components, namely, the database and interface modules, are initially presented along with the identification of important concepts and the definition of critical terms. Next high-level functions relating the types of inputs to the outputs of the R/DA interface module are introduced and discussed. Then the relationships between the major R/DA modules and the primary components associated with its creation and maintenance are presented and analyzed. Finally, some conclusions are drawn relative to the advantages associated with developing a R/DA system for use in implementing an enterprise-wide, work-facilitating information system.

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

1999-11-01

127

E U R O P E A N C U R R I C U L U M V I T A E  

E-print Network

Address Politecnico di Milano ­ P.za Leonardo da Vinci n. 32 20133 Milano Telephone +39 02 2399 2250 Fax.za Leonardo da Vinci, 32 Milano · Type of business or sector · Occupation or position held Rector · Main di Milano ­ P.za Leonardo da Vinci, 32 Milano · Type of business or sector Management Control Systems

128

Improving Security in the ATLAS PanDA System  

NASA Astrophysics Data System (ADS)

The security challenges faced by users of the grid are considerably different to those faced in previous environments. The adoption of pilot jobs systems by LHC experiments has mitigated many of the problems associated with the inhomogeneities found on the grid and has greatly improved job reliability; however, pilot jobs systems themselves must then address many security issues, including the execution of multiple users' code under a common 'grid' identity. In this paper we describe the improvements and evolution of the security model in the ATLAS PanDA (Production and Distributed Analysis) system. We describe the security in the PanDA server which is in place to ensure that only authorized members of the VO are allowed to submit work into the system and that jobs are properly audited and monitored. We discuss the security in place between the pilot code itself and the PanDA server, ensuring that only properly authenticated workload is delivered to the pilot for execution. When the code to be executed is from a 'normal' ATLAS user, as opposed to the production system or other privileged actor, then the pilot may use an EGEE developed identity switching tool called gLExec. This changes the grid proxy available to the job and also switches the UNIX user identity to protect the privileges of the pilot code proxy. We describe the problems in using this system and how they are overcome. Finally, we discuss security drills which have been run using PanDA and show how these improved our operational security procedures.

Caballero, J.; Maeno, T.; Nilsson, P.; Stewart, G.; Potekhin, M.; Wenaus, T.

2011-12-01

129

SBS TDMA-DA system with VAC and DAC  

NASA Astrophysics Data System (ADS)

This paper describes many of the design considerations involved in developing the demand assignment (DA) subsystem of the TDMA satellite communication system for Satellite Business Systems. Each earth station has a satellite communications controller (SCC) which requests capacity to meet current voice and data traffic demands. A central reference station frequently reallocates capacity based on the requests of all the earth stations in a network. To minimize the amount of satellite capacity required, the SCC has a circuit-switching capability for voice calls as well as for digital data calls. Furthermore, the SCC employs voice activity compression (VAC) and data activity compression (DAC), in which the amount of capacity requested is based on measured average speech activity as well as the number of off-hook voice ports and the number of off-hook data ports. Data calls are queued on a first-come, first-served basis when capacity is not immediately available. The reference station distributes excess capacity according to a nonlinear table lookup procedure so that the voice call blocking probability is equalized across the network. The DA system makes much more efficient use of satellite transmission capacity than a design with fixed-capacity trunk routes.

Goode, B.

1984-11-01

130

Da Leonardo da Vinci alla nanotribologia: storia delle ricerche e delle teorie sui fenomeni d'attrito  

Microsoft Academic Search

The most important topics and results of research on friction, from antiquity to now, are outlined: the early laws and theories, from Leonardo to Amontons and Coulomb; the theory of lubrication and the models of rolling friction from 1840 to 1930; the theories of wear, the synthesis of Bowden and Tabor and the birth of tribology; the recent developments, friction

Ugo Besson

131

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

NASA Astrophysics Data System (ADS)

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.

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

132

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Ubc Food System Project: Food Waste Management The Hot Beverage Cup  

E-print Network

: Food Waste Management ­ The Hot Beverage Cup Vinci Ching, Paul Gazzola, Karen Juzkow, Kenrick Kan, Tina of a project/report". #12;AGSC 450 UBC FOOD SYSTEM PROJECT: FOOD WASTE MANAGEMENT ­ THE HOT BEVERAGE CUP GROUP

133

CONTENT MANAGMENT SYSTEMS ESTRATTO DA: Ileana D'Incecco, Progettare la comunicazione web per  

E-print Network

146 CONTENT MANAGMENT SYSTEMS ESTRATTO DA: Ileana D'Incecco, Progettare la comunicazione web per/08 #12;133 Content Management Systems Un CMS (Content Management System) è un sistema software che sull'uso combinato di database e linguaggi di programmazione lato server (come ASP, PHP o JSP) e

Goy, Anna

134

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

ERIC Educational Resources Information Center

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…

Short, Tom

2006-01-01

135

The Mother Relationship and Artistic Inhibition in the Lives of Leonardo da Vinci and Erik H. Erikson  

Microsoft Academic Search

In four earlier articles, I focused on the theme of the relationship of melancholia and the mother, and suggested that the\\u000a melancholic self may experience humor (Capps, 2007a), play (Capps, 2008a), dreams (Capps, 2007c), and art (Capps, 2008b) as restorative resources. I argued that Erik H. Erikson found these resources to be valuable remedies for his own melancholic\\u000a condition, which

Donald Capps

2008-01-01

136

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

Microsoft Academic Search

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

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

2005-01-01

137

Efficient Synthesis of a 72-kDa Mitochondrial Polypeptide Using the Yeast Ty Expression System  

Microsoft Academic Search

Using the Ty system from yeast we report the efficient expression of a heterologous eukaryotic gene encoding a 72 kDa mitochondrial polypeptide. The pFM2IIBglII expression vector was initially modified for this purpose by inserting the factor Xaprotease cleavage site. TheTyAgene, which encodes the structural component of the yeast virus-like particles (VLPs), and the eukaryoticyst1 gene, encoding a 72 kDa mitochondrial

Stefanie Pöggeler; Christian Schwerk; Ute Kämper; Ulrich Kück

1996-01-01

138

Robot Command Interface Using an Audio-Visual Speech Recognition System  

NASA Astrophysics Data System (ADS)

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.

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

139

DaType: a stroke-based typeface design system  

Microsoft Academic Search

Hitherto, computer-aided typeface design systems are not very popular in the designer community. A major reason for this is the inappropriateness of todays systems regarding the underlying design metaphors. On the one hand, those systems are too technically oriented to meet the view of the typographer. On the other, most systems are driven by the outline-paradigm historically introduced when digitizing

Uwe Schneider

1998-01-01

140

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 ...

141

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

ERIC Educational Resources Information Center

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…

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

142

Modeling of Needle-Tissue Interaction Forces During Surgical Suturing Russell C. Jackson and M. Cenk C avusoglu  

E-print Network

the forces experienced during a suture. I. INTRODUCTION Even with the assistance of robotic surgical systems such as the daVinci R system (Intuitive Surgical, Sunnyvale, Califor- nia). Even though the daVinci R robotModeling of Needle-Tissue Interaction Forces During Surgical Suturing Russell C. Jackson and M

Cavusoglu, Cenk

143

Roles and Delegation of Authority (R/DA) System  

SciTech Connect

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.

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

1999-10-21

144

Development of noSQL data storage for the ATLAS PanDA Monitoring System  

NASA Astrophysics Data System (ADS)

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.

Potekhin, M.; ATLAS Collaboration

2012-06-01

145

Development of noSQL data storage for the ATLAS PanDA Monitoring System  

E-print Network

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.

Potekhin, Maxim; The ATLAS collaboration

2011-01-01

146

The Role of Robotic Surgery in Morbid Obesity  

Microsoft Academic Search

The purpose of this review was to form a collaborative opinion regarding the utility of robotic tech- nology, specifically the da Vinci™ robot (Intuitive Surgical, Inc., Sunnyvale, CA), for bariatric surgery. Eleven surgeons are currently using the da Vinci system to perform laparoscopic bariatric surgery. The surgeons were queried about the type of robotic bariatric surgery and number of cases

Garth Jacobsen; Robert Berger; Santiago Horgan

2003-01-01

147

Duality: Windows to the Mathematical World Ingrid Rewitzky  

E-print Network

;Leonardo da Vinci's perspective Perspective is nothing else than seeing a place or objects behind a plane. Leonardo da Vinci Leonardo da Vinci's window #12;When you think of computer cables, ... mental picture

Breuer, Florian

148

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

NASA Technical Reports Server (NTRS)

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.

Basile, Lisa

1988-01-01

149

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

NASA Technical Reports Server (NTRS)

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.

Basile, Lisa

1988-01-01

150

Development of noSQL data storage for the ATLAS PanDA Monitoring System  

NASA Astrophysics Data System (ADS)

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.

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

2012-12-01

151

Development of noSQL data storage for the ATLAS PanDA Monitoring System  

E-print Network

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 loa...

Ito, H; Wenaus, T

2012-01-01

152

Robot-Assisted Hysterectomy  

MedlinePLUS Videos and Cool Tools

... THE DA VINCI SURGICAL SYSTEM UNIVERSITY OF MICHIGAN HEALTH SYSTEM ANN ARBOR, MICHIGAN Wednesday, September 20, 2006 ... 10 ANNOUNCER: Today surgeons from University of Michigan Health System in Ann Arbor will perform a robot- ...

153

Politecnico di Milano Dipartimento di Architettura e Pianificazione Graduate School in Architectural and Landscape Heritage P.za Leonardo da Vinci, 32, Milano  

E-print Network

OF ENVIRONMENTAL ARCHITECTURE FROM 16TH TO 19TH CENTURY Dean Hawkes, Emeritus Professor, Cardiff University centuryfrom 16th to 19th centuryfrom 16th to 19th century Dean Hawkes This paper explores the relationship in British architecture from the end of the 16th century to the end of the 19th century. The account begins

154

Page 1Classroom Visit Pre/Post Materials1 C L A S S R O O M V I S I T  

E-print Network

that the angle of incidence will equal the angle of reflection. Leonardo Da Vinci: Leonardo da Vinci (1452-1519 that included diagrams of his scientific and mechanical projects. Da Vinci wrote in Italian using a special kind something intended for other people to read did he write left to right. Contemporaries of da Vinci recorded

Weston, Ken

155

Initial experience with robotic-assisted laparoscopic radical prostatectomy in the Canadian health care system  

PubMed Central

Background: Robotic-assisted laparoscopic radical prostatectomy (RALRP) has gained popularity in the United States due to claims of its superior 3-dimensional magnified vision and improved manual dexterity for surgeons that shorten the learning curve and facilitate the transition from standard open radical prostatectomy to laparoscopic prostatectomy as a minimally invasive procedure. The Canadian health care system, however, faces unique challenges when dealing with the introduction of new technologies. We report the initial experience with the use of the da Vinci robot for RALRP at the University of Western Ontario. Methods: We retrospectively reviewed the records of the initial 30 cases of RALRP with a minimum of 6 months follow-up. Data included the surgical times of various operative segments from cases 1–15 and 16–30, perioperative complications, early oncology and early functional results. Results: The lack of dedicated resources initially led to sporadic and infrequent cases. Nevertheless, there was improvement in surgical proficiency with significant difference in operative times between cases 1–15 and 16–30. Perioperative complications, though significant, were commensurate with reported early experiences from other centres worldwide, which reflects the learning curve with RALRP. Conclusion: Initiating a new surgical program that involves significant capital and maintenance costs, such as an RALRP program, within the Canadian health care system poses unique challenges for the surgical team. Nevertheless, our initial experience has encouraged us to proceed with the next phase of evaluation for the urological and oncological application of the technology. PMID:18542770

Luke, Patrick P; Pautler, Stephen E

2007-01-01

156

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 da Residente in Euro ................. (.....................................) Causale versamento

157

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

PubMed

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

Stroppiana, L

1989-01-01

158

A Flexible Pressure Monitoring System for Pressure Ulcer Prevention Marcus Yip, David Da He, Eric Winokur, Amanda Gaudreau Balderrama, Robert Sheridan and Hongshen Ma  

E-print Network

A Flexible Pressure Monitoring System for Pressure Ulcer Prevention Marcus Yip, David Da He, Eric Winokur, Amanda Gaudreau Balderrama, Robert Sheridan and Hongshen Ma Abstract-- Pressure ulcers are painful sores that arise from prolonged exposure to high pressure points, which restricts blood flow

Ma, Hongshen

159

Small D-?-A systems with o-phenylene-bridged accepting units as active materials for organic photovoltaics.  

PubMed

Donor-acceptor (D-?-A) systems that combine triarylamine donor blocks and dicyanovinyl (DCV) acceptor groups have been synthesized. Starting from the triphenylamine (TPA)-thiophene-DCV compound (1) as a reference system, various synthetic approaches have been developed for controlling the light-harvesting properties and energy levels of the frontier orbitals in this molecule. Thus, the introduction of methoxy groups onto TPA, the replacement of one phenyl ring of TPA by a thiophene ring, or the extension of the ?-conjugating spacer group lead to the modulation of the HOMO level. On the other hand, the fusion of the DCV group onto the vicinal thiophene ring by an ortho-phenylene bridge allows for a specific fine-tuning of the LUMO level. The electronic properties of the molecules were analyzed by using UV/Vis spectroscopy and cyclic voltammetry and the compounds were evaluated as donor materials in basic bilayer planar heterojunction solar cells by using C60 as acceptor material. The relationships between the electronic properties of the donors and the performance of the corresponding photovoltaic devices are discussed. Bilayer planar heterojunction solar cells that used reference compound 1 and C70 afforded power-conversion efficiencies of up to 3.7?%. PMID:23776042

Leliège, Antoine; Grolleau, Jérémie; Allain, Magali; Blanchard, Philippe; Demeter, Dora; Rousseau, Théodulf; Roncali, Jean

2013-07-22

160

Wide-angle ITER-prototype tangential infrared and visible viewing system for DIII-Da)  

NASA Astrophysics Data System (ADS)

An imaging system with a wide-angle tangential view of the full poloidal cross-section of the tokamak in simultaneous infrared and visible light has been installed on DIII-D. The optical train includes three polished stainless steel mirrors in vacuum, which view the tokamak through an aperture in the first mirror, similar to the design concept proposed for ITER. A dichroic beam splitter outside the vacuum separates visible and infrared (IR) light. Spatial calibration is accomplished by warping a CAD-rendered image to align with landmarks in a data image. The IR camera provides scrape-off layer heat flux profile deposition features in diverted and inner-wall-limited plasmas, such as heat flux reduction in pumped radiative divertor shots. Demonstration of the system to date includes observation of fast-ion losses to the outer wall during neutral beam injection, and shows reduced peak wall heat loading with disruption mitigation by injection of a massive gas puff.

Lasnier, C. J.; Allen, S. L.; Ellis, R. E.; Fenstermacher, M. E.; McLean, A. G.; Meyer, W. H.; Morris, K.; Seppala, L. G.; Crabtree, K.; Van Zeeland, M. A.

2014-11-01

161

Sapienza Universit di Roma Area per l'Internazionalizzazione  

E-print Network

/internazionale Modulo accettazione Borsa LLP-Leonardo da Vinci (Progetto YOUR-JOB-IN-EUROPE 2) La mancata consegna del: · accettare la Borsa di tirocinio Leonardo da Vinci di 24 settimane consecutive con una data di inizio motivo di esclusione da eventuali successivi progetti Leonardo da Vinci. AUTORIZZAZIONE AL TRATTAMENTO

Guidoni, Leonardo

162

Clip and Save.  

ERIC Educational Resources Information Center

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)

Hubbard, Guy

2003-01-01

163

Turbulenz bezeichnet einen Strmungs-zustand, der durch Unordnung geprgt  

E-print Network

Erkenntnis hatte schon Leonardo da Vinci (1452-1519), was seine Darstellung einer Bachströmung belegt. Der turbulenten Bach- strömung von Leonardo da Vinci. EINBLICKE Nr. 47 / Frühjahr 2008 Carl von Ossietzky

Peinke, Joachim

164

Spiral Laminar Flow: A revolution in understanding?  

E-print Network

30 40 50 60 70 80 Minimal Moderate Severe spiral non-spiral #12;Leonardo da Vinci Spirals in art: (1) the drawings of Leonardo da Vinci from Vindzone Library showing spiral flows in the heart cavity. La Bockeria

Greenaway, Alan

165

Citing Sources Using HARVARD Style in a Bibliography or Works Cited Page  

E-print Network

://elgg.leeds.ac.uk/libajn/weblog/ [23 February 2007]. Wiki 'Art Wikia', Leonardo da Vinci, [wiki article], October 8, 2012, Available from: http://art.wikia.com/wikia/Leonardo_Da_Vinci [26 october 2012]. Facebook, Twitter Smith, P, 2012

Hasýrcý, Vasýf

166

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

E-print Network

/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

Guidoni, Leonardo

167

Marie Curie Roadshow@TU/e Nikolaos (Nikos) Athanasopoulos  

E-print Network

-2010), Electrical Engineering Department, Patras, Greece · Leonardo da Vinci scholarship (3 month period, 2008 · Leonardo da Vinci scholarship (3 month period, 2008), Imperial College, London, UK · Post

Franssen, Michael

168

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

E-print Network

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

Cugola, Gianpaolo

169

UGST 181: Fall 2012 EARTH ART/GEOART Dr. Vatche P. Tchakerian Office: O&M 810  

E-print Network

- representative works by Leonardo da Vinci, Bellini, Botticelli, van Eyck, Durer, among others. Week 5: Renaissance artists and geological elements in landscape painting ­ representative works by Leonardo da Vinci

170

Deep-Sea Research I 55 (2008) 296323 Habitat use and preferences of cetaceans along the continental  

E-print Network

, Politecnico di Milano, Technical University, P.za Leonardo da Vinci 32, 20133 Milano, Italy b Tethys Research, Environmental and Survey Engineering, Politecnico di Milano, Technical University, P.za Leonardo da Vinci 32

171

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

NASA Astrophysics Data System (ADS)

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.

Shinkai, Akio; Ishikawa, Soichiro; Nakanishi, Tetsuya

2015-01-01

172

Universit degli Studi di Milano Elezioni CNSU 2013 Risultato Elezioni -Voti di Lista mercoled 5 giugno 2013  

E-print Network

, 32 - Campus Leonardo 10 6 Aula 12 - P.zza L. da Vinci, 32 - Campus Leonardo 16 7 Aula 1.3 - p.zza L. da Vinci, 32 - Campus Leonardo 14 8 Aula 1.5 - p.zza L. da Vinci, 32 - Campus Leonardo 32 9 Aula 1.6 - p.zza L. da Vinci, 32 - Campus Leonardo 17 10 Aula CT.2 - via Durando, 10 - Campus Bovisa 22 11 Aula

De Cindio, Fiorella

173

Selected New Trends in Scientific Visualization Werner Purgathofer and Helwig Loffelmann  

E-print Network

as Leonardo da Vinci (1452--1519). Most of these visualizations were originally motivated by artistic desires results to which this activity gives rise. Figure 1. Sketches from Leonardo da Vinci visualizing flow, atmospheric clouds). One of them, namely Leonardo da Vinci, used fine particles of sand or dirt and wood

174

Classroom Visit Pre/Post Materials1 C L A S S R O O M V I S I T  

E-print Network

Vinci: Leonardo da Vinci (1452-1519), known as a genius of the Renaissance, was an artist, inventor Snell's Law, which states that the angle of incidence will equal the angle of reflection. Leonardo Da wrote long descriptions that included diagrams of his scientific and mechanical projects. Da Vinci wrote

Weston, Ken

175

DISPOSIZIONE N. 138/2014 PROT. N. 0002375 DEL 16/01/2014  

E-print Network

DISPOSIZIONE N. 138/2014 PROT. N. 0002375 DEL 16/01/2014 Programma "LEONARDO DA VINCI" Progetto'Apprendimento Permanente ­ Programma settoriale "Leonardo da Vinci", Sapienza Università di Roma partecipa al progetto di CONTRIBUTO LEONARDO DA VINCI (LdV): Il contributo LdV rappresenta un rimborso delle spese di viaggio

Guidoni, Leonardo

176

Erasmus + Programme Erasmus Policy Statement (Overall Strategy)  

E-print Network

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

Guidoni, Leonardo

177

Pagina 1 Curriculum Vitae di Gianluca Noto C U R R I C U L U M  

E-print Network

S S I O N A L E INFORMAZIONI PERSONALI Nome GIANLUCA NOTO Indirizzo PIAZZA LEONARDO DA VINCI, 32 ­ 20133 datore di lavoro Politecnico di Milano Piazza Leonardo da Vinci, 32 ­ 20133 Milano · Tipo di impiego ottobre 2006 · Nome e indirizzo del datore di lavoro Politecnico di Milano Piazza Leonardo da Vinci, 32

178

Pagina 1 Curriculum Vitae di Rossella C U R R I C U L U M  

E-print Network

S S I O N A L E INFORMAZIONI PERSONALI Nome MAGNI ROSSELLA Indirizzo P.zza Leonardo da Vinci, 32 ­ 20133 di lavoro Politecnico di Milano p.zza Leonardo da Vinci, 32 ­ 20133 Milano · Tipo di impiego Capo Milano p.zza Leonardo da Vinci, 32 ­ 20133 Milano · Tipo di impiego Capo Servizio ­ Servizi Generali agli

179

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

E-print Network

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

Ruiz, Jesús M.

180

Nome e in Principali mansi  

E-print Network

20 litecnico di Mi azza Leonardo d nsulente ­ liber ARO RDO DA VINCI, 364 039 za@polimi.it 013 ad e indirizzo del datore di lavoro Politecnico di Milano, Piazza Leonardo da Vinci, 32 ­ 20133 Milano del datore di lavoro Politecnico di Milano, Piazza Leonardo da Vinci, 32 ­ 20133 Milano ­ presso

181

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA  

E-print Network

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci Torino, sita in Grugliasco (TO), Via Leonardo da Vinci 44/48. Il suddetto è' stato pubblicato sul sito VETERINARIA Via Leonardo da Vinci, 44/48 - 10095 Grugliasco (Torino) __________________ Sulla base di quanto

Sproston, Jeremy

182

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 da Vinci Viale Romagna 62 Camere singole/doppie con bagno ad uso esclusivo o condivisione SI - camere

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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

184

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA  

E-print Network

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci Torino, sita in Grugliasco (TO), Via Leonardo da Vinci 44/48. Il suddetto è' stato pubblicato sul sito;UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci, 44

Sproston, Jeremy

185

ISTANZA DI ISCRIZIONE E DICHIARAZIONI  

E-print Network

Leonardo da Vinci 44/48" 10095 Grugliasco TO OGGETTO: Istanza di iscrizione all'elenco aperto di soggetti Veterinaria dell'Università degli Studi di Torino, sita in Grugliasco (TO), Via Leonardo da Vinci 44/48. Per da Vinci 44/48. Il sottoscritto

Sproston, Jeremy

186

A Multiagent Interaction Paradigm for Physiological Process Control  

E-print Network

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

Gatti, Nicola

187

Pagina 1 Curriculum Vitae di Giorgia Perga  

E-print Network

S S I O N A L E INFORMAZIONI PERSONALI Nome PERGA GIORGIA Indirizzo Piazza Leonardo da Vinci, 32 ­ 20133 POLITECNICO DI MILANO Piazza Leonardo da Vinci, 32 - Milano · Tipo di impiego Responsabile Funzione di Staff del datore di lavoro POLITECNICO DI MILANO Piazza Leonardo da Vinci, 32 - Milano · Tipo di impiego

188

Pagina 1 Curriculum Vitae di Paola Carlucci C U R R I C U L U M  

E-print Network

S S I O N A L E INFORMAZIONI PERSONALI Nome CARLUCCI Paola Indirizzo 32, Piazza Leonardo da Vinci, 20133 lavoro Politecnico di Milano, Piazza Leonardo da Vinci 32 ­ Milano · Tipo di impiego Capo Servizio, Piazza Leonardo da Vinci 32 - Milano · Tipo di impiego Supporto alla pianificazione e controllo delle

189

Pagina 1 Curriculum Vitae di C U R R I C U L U M  

E-print Network

di lavoro POLITECNICO DI MILANO P.zza Leonardo da Vinci, 32 Milano · Tipo di impiego Dirigente dell indirizzo del datore di lavoro POLITECNICO DI MILANO P.zza Leonardo da Vinci, 32 Milano · Tipo di impiego/12/2012 · Nome e indirizzo del datore di lavoro POLITECNICO DI MILANO P.zza Leonardo da Vinci, 32 Milano · Tipo

190

Accordo con QdG Teatro Leonardo Soc. Consortile a r.l. Stagione Teatrale 2013/2014 -www.teatroleonardo.it  

E-print Network

, l'accesso al Teatro Leonardo Da Vinci per gli studenti universitari(2) con tesserino universitario e definire a cura di Teatro Leonardo da Vinci, estensibili ad uno o più accompagnatori se indicato. Per tutte dello "Studio U.r.p. "(3). (1) Storia e Informazioni su www.teatroleonardo.it Teatro Leonardo da Vinci

De Cindio, Fiorella

191

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA  

E-print Network

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci Torino, sita in Grugliasco (TO), Via Leonardo da Vinci 44/48. Il suddetto è' stato pubblicato sul sito TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci, 44/48 - 10095 Grugliasco (Torino

Sproston, Jeremy

192

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA  

E-print Network

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci Torino, sita in Grugliasco (TO), Via Leonardo da Vinci 44/48. Il suddetto è' stato pubblicato sul sito VETERINARIA Via Leonardo da Vinci, 44/48 - 10095 Grugliasco (Torino) __________________ Detto elenco è stato

Sproston, Jeremy

193

Den Dolech 2 Postbus 513 / Traverse 0.17  

E-print Network

within the Leonardo da Vinci Program. What is a Leonardo da Vinci grant? The grants are meant for young, Iceland, Liechtenstein and Turkey. Excluded are Subject Leonardo da Vinci grant #12;the countries where.v.beek@tue.nl Dear candidate for a Leonardo grant, With this letter we want to inform you about the mobility grants

Franssen, Michael

194

Pagina 1 Curriculum Vitae di Vincenza Tornatore  

E-print Network

DICA (Sezione Geodesia e Geomatica), Piazza Leonardo da Vinci 32, 20133 Milano, Italia · Tipo di lavoro Politecnico di Milano DIIAR Sezione Rilevamento, Piazza Leonardo da Vinci 32, 20133 Milano, Italia Politecnico di Milano DIIAR Sezione Rilevamento, Piazza Leonardo da Vinci 32, 20133 Milano, Italia · Tipo di

195

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA  

E-print Network

UNIVERSITA' DEGLI STUDI DI TORINO STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci Torino, sita in Grugliasco (TO), Via Leonardo da Vinci 44/48. Il suddetto è' stato pubblicato sul sito STRUTTURA DIDATTICA SPECIALE VETERINARIA Via Leonardo da Vinci, 44/48 - 10095 Grugliasco (Torino

Sproston, Jeremy

196

Nr. 294 / 2012 // 31. 10. 2012 Bayreuther Spinnen in Paris  

E-print Network

Biomaterialien der Universität Bayreuth sind Teil einer Ausstellung in Paris über Leonardo da Vinci Die Pariser Ausstellung über Leonardo da Vinci zeigt auch Exponate zum Thema Spinnenseide des Lehrstuhls Biomaterialien Museumsverbundes Universcience ist, stehen Aspekte des Lebens und Schaffens von Leonardo da Vinci. In einem

Ullmann, G. Matthias

197

Pagina 1 Curriculum Vitae di Massimo Valentini  

E-print Network

indirizzo del datore di lavoro POLITECNICO DI MILANO ­ piazza Leonardo da Vinci, 32 ­ 20133 MILANO - ITALIA DI MILANO ­ piazza Leonardo da Vinci, 32 ­ 20133 MILANO - ITALIA · Tipo di impiego Tecnico Laureato indirizzo del datore di lavoro POLITECNICO DI MILANO ­ piazza Leonardo da Vinci, 32 ­ 20133 MILANO - ITALIA

198

Pagina 1 Curriculum Vitae di Francesca Teresa Saracino  

E-print Network

LEONARDO DA VINCI, 32, MILANO Telefono 02 2399 2527 Fax 02 2399 2133 E-mail francesca con le Imprese Piazza Leonardo da Vinci, 32 - Milano · Tipo di impiego Capo servizio per l Politecnico di Milano, Career Service ­ Area Comunicazione e Relazioni Esterne Piazza Leonardo da Vinci, 32

199

Soil Erosion Caused by Snow Avalanches: a Case Study in the Aosta Valley Michele Freppaz*{  

E-print Network

Suoli Alpini, 44, Via Leonardo da Vinci, 10095 Grugliasco (TO), Italy {Universita` degli Studi di Torino, NatRisk­Research Centre of Natural Risks in Mountain and Hilly Enviroments, 44, Via Leonardo da Vinci Costruzioni Rurali, 44, Via Leonardo da Vinci, 10095 Grugliasco (TO), Italy 1Institute of Arctic and Alpine

Williams, Mark W.

200

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

E-print Network

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

Akhmedov, Azer

201

VIALEROMAGNA VIA BONARDI  

E-print Network

BONARDI M2 - PIOLA PIAZZA LEONARDO DA VINCI VIA BASSINI VIA CELORIA VIAGOLGI VIACLERICETTI VIA BERNARDO BONARDI M2 - PIOLA PIAZZA LEONARDO DA VINCI EDIFICIO 13 Aula T 1.2 Quando Martedì 29 Ottobre 12:15 - 14 VIA PONZIO VIAPONZIO VIALEROMAGNA VIA BONARDI M2 - PIOLA PIAZZA LEONARDO DA VINCI VIA BASSINI VIA

202

Fast 3D optical reconstruction in turbid media using spatially modulated light  

E-print Network

@POLIMI­Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy 2Instituto di Fotonica e Nanotecnologie (IFN-CNR)­Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy 3Italian Institute of Technology (IIT), Piazza Leonardo da Vinci 32, I-20133

Boyer, Edmond

203

Extended indications for robotic surgery for posterior mediastinal tumors.  

PubMed

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

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

2012-06-01

204

DESIGN AND CHARACTERIZATION OF A NOVEL HYBRID ACTUATOR USING SHAPE MEMORY ALLOY AND D.C MOTOR FOR MINIMALLY  

E-print Network

DESIGN AND CHARACTERIZATION OF A NOVEL HYBRID ACTUATOR USING SHAPE MEMORY ALLOY AND D.C MOTOR system 11 2.2.2 da Vinci Surgical system 13 ii #12;3 Local Actuation System for MIS / MIRS 15 3.1 Need for local Actuation 15 3.2 Requirements of the local actuation system 16 3.3 Review of Local Actuation

Cavusoglu, Cenk

205

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

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…

Stenstrom, Marja-Leena, Ed.

206

2010Copyright @ Otology & Neurotology, Inc. Unauthorized reproduction of this article is prohibited. Robotic Mastoidectomy  

E-print Network

of a surgical-assist system is the da Vinci Surgical System (Intuitive Surgical, Inc., Sunnyvale, CA, USA) surgical-assist devices, which modulate a surgeon's motions, or (b) autonomous robots (which Taylor calls Bsurgical CAD/CAM[ systems to illustrate the analogy to industrial computer-aided design and manufacturing

Webster III, Robert James

207

BIOMEDICAL PAPER Towards automatic skill evaluation: Detection and segmentation  

E-print Network

Center for Computer-Integrated Surgical Systems and Technology and 2 Center for Language and Speech data to a model of the procedure being performed. Robotic surgical systems such as the da Vinci system to supplement traditional training paradigms. With the advent of robot-assisted minimally invasive surgical

Shafran, Izhak

208

COMIT FRANAIS D'HISTOIRE DE LA GOLOGIE -Troisime srie -  

E-print Network

as the first palaeontologist. At the same time, two autodidacts, Bernard Palissy and Leonardo da Vinci, took: : Agricola - Conrad Gesner - Palissy - Leonardo da Vinci - fossiles - XVIth century. INTRODUCTION Parmi les rappelé que deux autodidactes, Bernard Palissy (v. 1510-1589) et Léonard de Vinci (1452-1519) méritent d

Paris-Sud XI, Université de

209

Cardiopulmonary collapse in the wake of robotic surgery.  

PubMed

Since the Food and Drug Administration approved the da Vinci Surgical System in 2000, robotic surgery is becoming increasingly popular in the operating room. Despite its popularity and proposed benefits, robotic surgeries encompass many complications that are often confounded by the patient's physiology and comorbidities. This article illustrates a case study of a patient who underwent a da Vinci ureterectomy. The case study will highlight the implications and complications that may arise with pneumoperitoneum and steep Trendelenburg positioning, and an overview of the current literature in robotic surgery will be presented. PMID:25109163

Lee, Livia C

2014-06-01

210

A 170kDa multi-domain cystatin of Fasciola gigantica is active in the male reproductive system.  

PubMed

Cystatins are functional as intra- and extracellular inhibitors of cysteine proteases and are expressed as single or multi-domain proteins. We have previously described two single domain type 1 cystatins in the trematode Fasciola gigantica that are released into the parasite's intestinal tract and exhibit inhibitory activity against endogenous and host cathepsin L and B proteases. In contrast, the here presented 170kDa multi-domain cystatin (FgMDC) comprises signal peptide and 12 tandem repeated cystatin-like domains with similarity to type 2 single domain cystatins. The domains show high sequence divergence with identity values often <20% and at only 26.8% between the highest matching domains 6 and 10. Several domains contain degenerated QVVAG core motifs and/or lack other important residues of active type 2 cystatins. Domain-specific antisera detected multiple forms of FgMDC ranging from <10 to >120kDa molecular mass in immunoblots of parasite crude extracts and ES product with different banding patterns for each antiserum demonstrating complex processing of the proprotein. The four domains with the highest conserved QVVAG motifs were expressed in Escherichia coli and the refolded recombinant proteins blocked cysteine protease activity in the parasite's ES product. Strikingly, immunohistochemical analysis using seven domain-specific antisera localized FgMDC in testis lobes and sperm. It is speculated that the processed cystatin-like domains have function analogous to the mammalian group of male reproductive tissue-specific type 2 cystatins and are functional in spermiogenesis and fertilization. PMID:25176159

Geadkaew, Amornrat; Kosa, Nanthawat; Siricoon, Sinee; Grams, Suksiri Vichasri; Grams, Rudi

2014-09-01

211

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

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

2013-01-01

212

Dexterity enhancement with robotic surgery  

Microsoft Academic Search

Background The aim of this study was to quantify the extent of dexterity enhancement in robotic surgery as compared to laparoscopic surgery. Methods Ten surgeons with varying laparoscopic suturing experience were asked to place three sutures on a suture pad. The sutures were placed laparoscopically, robotically with 2-D vision and robotically with 3-D vision. The da Vinci system’s Application Programming

K. Moorthy; Y. Munz; A. Dosis; J. Hernandez; S. Martin; F. Bello; T. Rockall; A. Darzi

2004-01-01

213

Automatic Detection and Segmentation of Robot-Assisted Surgical Motions  

Microsoft Academic Search

Robotic surgical systems such as Intuitive Surgical's da Vinci system provide a rich source of motion and video data from surgical procedures. In principle, this data can be used to evaluate surgical skill, provide surgical training feedback, or document essential aspects of a procedure. If processed online, the data can be used to provide context- specific information or motion enhancements

Henry C. Lin; Izhak Shafran; Todd E. Murphy; Allison M. Okamura; David D. Yuh; Gregory D. Hager

2005-01-01

214

IEEE Robotics & Automation Magazine122 1070-9932/08/$25.002008 IEEE JUNE 2008 Surgical and  

E-print Network

), and physician experience. Computer-assisted interven- tional systems can gather and present information in the operating room or interven- tional suite. The da Vinci telerobotic system (Intui- tive Surgical, Inc by an overview of the two technical para- digms, surgical computer-aided design and computer-aided manufacturing

Whitcomb, Louis L.

215

COMPUTER ASSISTED PYELOPLASTY IN CHILDREN: THE RETROPERITONEAL APPROACH  

Microsoft Academic Search

Purpose:We describe the first series of computer assisted retroperitoneoscopic pyeloplasty in children using the Da Vinci Surgical System (Intuitive Surgical, Inc., Mountainview, California) with regard to setup, method, operation time, complications and preliminary outcome. The small space in the retroperitoneum of children and larger instruments of the computer assisted surgical system make modification of the retroperitoneal access necessary.

L. H. OLSEN; T. M. JORGENSEN

2004-01-01

216

1 Copyright 20xx by ASME Proceedings of the ASME/FDA 2013 1st Annual Frontiers in Medical Devices: Applications of Computer Modeling  

E-print Network

University at Buffalo (SUNY) Buffalo NY USA ABSTRACT The present state-of-the-art surgical robotic systems with automated-assists for safer and smarter robotic surgeries. BACKGROUND Surgical tool detection and tracking SETUP Recorded videos of hysterectomy procedures and simulator tasks using the da Vinci Surgical System

Krovi, Venkat

217

D-?-A dye system containing cyano-benzoic acid as anchoring group for dye-sensitized solar cells.  

PubMed

A D-?-A dye (KM-1) incorporating cyano-benzoic acid as a new acceptor/anchoring group has been synthesized for dye-sensitized solar cells (DSCs) with a high molar extinction coefficient of 66,700 M(-1) cm(-1) at 437 nm. Theoretical calculations show that the hydrogen bond between -CN and surface hydroxyl leads to the most stable configuration on the surface of TiO(2). In addition, the adsorption of the dye on TiO(2) follows a Brunauer-Emmett-Teller (BET) isotherm. Multilayer adsorption of KM-1 on TiO(2) seems to take place particularly at higher dye concentrations. DSC device using KM-1 reached a maximum incident photon-to-current conversion efficiency (IPCE) of 84%, with a solar to electric power conversion efficiency (PCE) of 3.3% at AM1.5 G illumination (100 mW cm(-2)). This new type of anchoring group paves a way to design new dyes that combine good visible light harvesting with strong binding to the metal oxide surface. PMID:21999751

Katono, Masataka; Bessho, Takeru; Meng, Sheng; Humphry-Baker, Robin; Rothenberger, Guido; Zakeeruddin, Shaik M; Kaxiras, Efthimios; Grätzel, Michael

2011-12-01

218

Using the MAS-ML to model a Multi-Agent System Viviane Torres da Silva Ricardo Choren Noya  

E-print Network

represent the static and dynamic aspects of such systems by expressing the characteristics of all essential approaches [8,12] propose to extend UML by expressing agents as a stereotype of objects/classes. This is not satisfactory because stereotypes can only be used to indicate a difference in meaning or usage between two

Endler, Markus

219

Vattikuti Institute Prostatectomy: Technique  

Microsoft Academic Search

PurposeWe have performed more than 250 radical prostatectomies using the da Vinci (Intuitive Surgical, Mountain View, California) surgical system. Our initial cases were done using the classic Montsouris approach. However, after gaining familiarity with the robot we modified our technique to reflect our experience with open radical retropubic prostatectomy. We detail the Vattikuti Institute prostatectomy technique that we currently use.

MANI MENON; ASHUTOSH TEWARI; JAMES PEABODY

2003-01-01

220

Robotic mitral valve surgery: A United States multicenter trial  

Microsoft Academic Search

Objective: In a prospective phase II Food and Drug Administration trial, robotic mitral valve repairs were performed in 112 patients at 10 centers by using the da Vinci surgical system. The safety of performing valve repairs with computerized telemanipulation was studied. Methods: After institutional review board approval, informed consent was obtained. Patients had moderate to severe mitral regurgitation. Operative technique

L. Wiley Nifong; W. R. Chitwood; P. S. Pappas; C. R. Smith; M. Argenziano; V. A. Starnes; P. M. Shah

2005-01-01

221

Use of Optimal Instrumental Variables Estimation to Determine the Impact of the Diusion of  

E-print Network

by substituting open surgeries with robotic- assisted ones while keeping the proportion of surgically to perform robot-assisted surgeries, grew from 800 to 1,400.(Barbash and Glied 2010) It was estimated that robotic surgery adds 13% to the cost of surgery. Da Vinci Surgical System was approved by the FDA in 2000

Mateo, Jill M.

222

Proceedings of the IEEE International Conference on Mechatronics & Automation  

E-print Network

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

Cavusoglu, Cenk

223

3D Surface Reconstruction of Organs using Patient-Specific Shape Priors in  

E-print Network

RALS technologies, da Vinci Surgical System (Intuitive Surgical, Inc., Sunnyvale, CA, USA), have3D Surface Reconstruction of Organs using Patient-Specific Shape Priors in Robot-Assisted Biomedical Signal and Image Computing Lab, University of British Columbia, Vancouver, Canada 2 Qatar Robotic

Hamarneh, Ghassan

224

A prospective analysis of 211 robotic-assisted surgical procedures  

Microsoft Academic Search

Background: The Academic Robotics Group prospectively studied 211 robotically assisted operations to assess the safety and utility of robotically assisted surgery. Methods: All operations took place at one of four member institutions between June 2000 and June 2001 using the recently FDA-approved daVinci robotic system. A variety of procedures were undertaken, including antireflux surgery (69), cholecystectomy (36), Heller myotomy (26),

M. A. Talamini; S. Chapman; S. Horgan; W. S. Melvin

2003-01-01

225

Workshop on Augmented Environments for Computer-Assisted Interventions: MICCAI, AE-CAI Nice, France, October 2012  

E-print Network

Workshop on Augmented Environments for Computer-Assisted Interventions: MICCAI, AE-CAI Nice, France such as the da Vinci® Surgical System (Intuitive Surgical, Inc.) can provide motion-scaling, so that fine motion, October 2012 Second-Generation Hand-Held Force Magnifier for Surgical Instruments Randy Lee 1, 4 , George

Stetten, George

226

Malpighi and the Discovery of Capillaries  

Microsoft Academic Search

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

J. M. S. Pearce

2007-01-01

227

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

NASA Astrophysics Data System (ADS)

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.

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

2009-04-01

228

Oral Administration of High Molecular Weight Hyaluronan (900 kDa) Controls Immune System via Toll-like Receptor 4 in the Intestinal Epithelium  

PubMed Central

Low molecular weight hyaluronan enhances or induces inflammation through toll-like receptor 4 (TLR-4).However, the effects of high molecular weight hyaluronan (HA900) on TLR-4 are unknown. In this study, HA900 (900 kDa) was administered orally to MRL-lpr/lpr mice, a Th-1-type autoimmune disease model. Lymphoaccumulation of double-negative T cells, which is enhanced by proinflammatory cytokines, was suppressed by HA900 treatment. Cytokine array analysis showed that HA900 treatment enhanced production of interleukin-10, an anti-inflammatory cytokine, and down-regulated chemokine production. HA900 colocalized with TLR-4 on the luminal surface of epithelial cells in the large intestine. These cells are parts of the immune system and express cytokines. DNA array analysis of the tissue from the large intestine showed that HA900 treatment up-regulated suppressor of cytokine signaling 3 (SOCS3) expression and down-regulated pleiotrophin expression. Treatment of cultured double-negative T cells from MRL-lpr/lpr mice with pleiotrophin rescued these cells. SOCS3, which is known to suppress inflammation, was enhanced by HA900 treatment. In TLR-4 knockdown HT29 cells (a cell line derived from large intestinal cells), HA900 did not bind to HT29 cells and did not up-regulate SOCS3 expression. Our results suggest that oral administration of HA900 modulates Th-1-type autoimmune disease and inflammation by up-regulating SOCS3 expression and down-regulating pleiotrophin expression via TLR-4 in intestinal epithelial cells. PMID:20504769

Asari, Akira; Kanemitsu, Tomoyuki; Kurihara, Hitoshi

2010-01-01

229

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

E-print Network

IBAN : IT34 T056 9601 6200 00001600X69 Intestato a: Politecnico di Milano Piazza Leonardo da Vinci, 32 di Milano Piazza Leonardo da Vinci, 32 ­20133 Milano Milano, Eseguito da Residente in *Euro ­20133 Milano Milano, Eseguito da Residente in *Euro

230

Area Servizi Bibliotecari di Ateneo Modulo di versamento peril Servizio DD  

E-print Network

IBAN : IT34 T056 9601 6200 00001600X69 Intestato a: Politecnico di Milano Piazza Leonardo da Vinci, 32 di Milano Piazza Leonardo da Vinci, 32 ­20133 Milano Milano, Eseguito da Residente in *Euro ­20133 Milano Milano, Eseguito da Residente in *Euro

231

Pagina 1 Curriculum Vitae di Fagnani Daniela Rosa C U R R I C U L U M  

E-print Network

E S S I O N A L E INFORMAZIONI PERSONALI Nome Fagnani Daniela Rosa Indirizzo P.zza Leonardo da Vinci Servizi agli Studenti ­P.zza Leonardo da Vinci, 32 ­ 20133 Milano · Nome e indirizzo del datore di lavoro indirizzo del datore di lavoro · Tipo di impiego Politecnico di Milano ­P.zza Leonardo da Vinci, 32 ­ 20133

232

KOOR/BEST ERASMUS-Praktika-  

E-print Network

KOOR/BEST ­ ERASMUS-Praktika- Leonardo da Vinci-Programmg www.hs- karlsruhe.de/koor 1 #12;Themen 1-Praktika-Stipendien 4 L d D Vi i Sti di4. Leonardo Da Vinci-Stipendien 5 Fragen und Kontakt5. Fragen und Kontakt www Leonardo Da Vinci-Stipendien für Graduiertep bundesweit EU Projekt zur Qualitätssicherung vonEU-Projekt zur

Mannheim, Universität

233

Developmentally regulated expression of a 78 kDa erythroblast membrane glycoprotein immunologically related to the platelet thrombospondin receptor.  

PubMed Central

We have previously described a monoclonal antibody (FA6-152), obtained by immunizing mice with fetal human erythrocytes [Edelman, Vinci, Villeval, Vainchenker, Henri, Miglierina, Rouger, Reviron, Breton-Gorius, Sureau & Edelman (1986) Blood 67, 56-63]. The antibody labelled fetal, but not adult, erythrocytes and bound to both fetal and adult platelets and monocytes. In the present study we have characterized the antigen recognized by FA6-152 on human platelets and on cells of the erythroid lineage at different stages of maturation. FA6-152 precipitated a chymotrypsin-resistant 88 kDa sialoglycoprotein from both iodinated and periodate/NaB3H4-surface-labelled platelets which corresponds to glycoprotein IV, the platelet thrombospondin (TSP) receptor. After neuraminidase treatment, a shift of the apparent molecular mass from 88 kDa to 85 kDa was observed. Scatchard analysis revealed that 125I-FA6-152 bound saturably with high affinity to a single class of platelet binding sites (Kd 6.4 +/- 0.6 nM). The number of FA6-152 IgG molecules bound per platelet was 25,400 +/- 8,800 (n = 4) and did not change upon thrombin activation of platelets. At low doses of alpha-thrombin (0.025 unit), FA6-152 inhibited platelet aggregation as well as endogenous TSP binding to the platelet surface. Immunofluorescence labelling of bone-marrow cells and of cultures in vitro of burst-forming units-erythroid (BFU-E) and colony-forming units-erythroid (CFU-E) revealed that that FA6-152 antigen is a very early marker of erythroid differentiation and that its expression declines during maturation. Immunochemical identification of the FA6-152 antigen on fetal erythroblasts and fetal mature erythrocytes revealed a 78 kDa glycoprotein migrating just in front of the glycophorin A dimer. The antigen, which was absent from adult mature erythrocytes, was also detected in human erythroleukaemic (HEL) cells where FA6-152 precipitated two bands of molecular mass 85 and 88 kDa. Our data establish the existence of a previously unidentified 78 kDa erythroblast cell-surface glycoprotein whose expression is developmentally regulated during erythroid differentiation and which is immunologically related to the 88 kDa platelet TSP receptor. Images Fig. 1. Fig. 2. Fig. 4. Fig. 5. PMID:2480109

Kieffer, N; Bettaieb, A; Legrand, C; Coulombel, L; Vainchenker, W; Edelman, L; Breton-Gorius, J

1989-01-01

234

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

235

Dealing with Changes in Service Orchestrations Leandro Sales Pinto  

E-print Network

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

Cugola, Gianpaolo

236

Pagina 1 Curriculum Vitae di Longoni, Dora M.  

E-print Network

indirizzo del datore di lavoro Politecnico di Milano, P.zza Leonardo da Vinci, 32, 20133 MILANO · Tipo di gestione di 9 progetti finanziati nell'ambito del programma Leonardo da Vinci (fino al 2007) · Dal al Nov S S I O N A L E INFORMAZIONI PERSONALI Nome LONGONI, DORA MARIA CORNELIA Indirizzo P.zza Leonardo da

237

Computer-Enhanced ``Robotic'' Cardiac Surgery: Experience In 148 Patients  

Microsoft Academic Search

Objective: A computer-enhanced instrumentation system was used in 148 patients to minimize access in cardiac surgical procedures. Methods: The da Vinci telemanipulation system (Intuitive Surgical, Mountain View, Calif) provides a high-resolution 3-dimensional videoscopic image and allows remote, tremor-free, and scaled control of endoscopic surgical instruments with 6 degrees of freedom. By April 2000, the system had been used in 131

Friedrich W. Mohr; Volkmar Falk; Anno Diegeler; Thomas Walther; Jan F. Gummert; J. Buccerius; Stefan Jacobs; Rüdiger Autschbach

2001-01-01

238

DA FALA À ESCRITA: OS SABERES DA ORALIDADE E O INÍCIO DE PRODUÇÃO DA ESCRITA ESCOLAR  

Microsoft Academic Search

Resumo: Analisa a integração dos saberes da oralidade de a lfabetizandos e o processo de aquisição da escrita escolar embasado em fundamentos da Sociolingüística Educacional. A pesquisa foi desenvolvida considerando princípios metodológicos da Etnografia Colaborativa Educacional. Foi realizada em uma escola da Secretaria de Estado de Educação do Distrito Federal, mais especificamente, em uma sala de alfab etização. Esta sala

Maria Alice Fernandes de Sousa

239

Fotopoética da Cidade  

Microsoft Academic Search

The research considers the imaginary nature of the Urban space through a reading of the aesthetic analysis of images of the photographic creation. Gaston Bachelard's Phenomenology of the creative Imagination and poetic Image brings the conceptual base of the study. Fotografia, Arte, Urbanismo, Bachelard, Imaginação. Apresentação Investigamos a natureza poética do fenômeno urbano, através da análise fenomenológica de imagens da

Carlos Alberto Murad

240

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

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

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

2013-01-01

241

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

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

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

2013-01-01

242

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

PubMed

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

Choresh, O; Ron, E; Loya, Y

2001-09-01

243

Early experiences of robotic surgery in children  

Microsoft Academic Search

  Background: Laparoscopic surgery using a robotic system (Da Vinci) was recently introduced into surgical practice for adult\\u000a patients. To investigate the feasibility of this system in pediatric surgery, laparoscopic fundoplication (Thal and Nissen),\\u000a cholecystectomy, and bilateral salpingo-oophorectomy were performed. Methods: Eleven children with a mean age of 12 years\\u000a (range, 7–16 years) underwent either laparoscopic anterior partial fundoplication (Thal, n

C. N. Gutt; B. Markus; Z. G. Kim; D. Meininger; L. Brinkmann; K. Heller

2002-01-01

244

A single amino acid substitution in the 126-kDa protein of pepper mild mottle virus controls replication and systemic movement into upper non-inoculated leaves of bell pepper plants.  

PubMed

Previously, we generated attenuated variants of pepper mild mottle virus by replacing residue 649 in the 126-kDa replicase protein with various amino acids. Here, we examined the biological properties of the 16 variants that caused either mild mosaic or no mosaic. All but one (A649N) of the mild-mosaic-inducing strains replicated at higher levels in pepper plants and systemically moved at higher rates into the upper non-inoculated leaves than the no-mosaic strains. C1421, previously selected for practical use, not only caused mild symptoms but also had an especially high replication rate in pepper plants and spread more efficiently into the upper non-inoculated leaves. PMID:21293967

Nakazono-Nagaoka, E; Omura, T; Uehara-Ichiki, T

2011-05-01

245

[Robotics-assisted laparoscopic colorectal resection].  

PubMed

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

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

2013-08-01

246

Exploring Leonardo  

NSDL National Science Digital Library

This online exhibit on Leonardo da Vinci includes references and activities about both his scientific and artistic work. The site is divided into several sections, with each section offering background information about da Vinci, links to more in depth articles and classroom activities.

1997-01-01

247

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

ERIC Educational Resources Information Center

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…

Mears, Derrick

2010-01-01

248

chaoTIc : (ka tik) adj. 1. in a state of chaos;  

E-print Network

than $300 million to create the hits "X-Men: The Last Stand" and "The Da Vinci Code" visionaries? Were's hopes for black ink are decided by the gods of movie fortune--namely, you and me. Americans may heads, they see "X-Men"; if the coin lands tails, it's "The Da Vinci Code." Since the coin has an equal

Koch, Christof

249

The impact of Nikola Tesla on the cement industry  

Microsoft Academic Search

Nikola Tesla was perhaps the greatest inventor\\/engineer the world has known since the time of Leonardo da Vinci. Similar to da Vinci, Tesla's work was revolutionary, and Tesla's work was forgotten by the time his work was fully developed by others. Tesla was awarded the original patents that established the foundation for generating, delivering and utilizing the electricity used in

Jeffrey L. Sellon

1997-01-01

250

Collegeweek 2: De Gulden Snede  

E-print Network

Paciola tot Escher (3) · Leonardo da Vinci (1452-1519) tekende op aanwijzing van Vitruvius een man op van illustraties voorzien door Leonardo da Vinci. · In het boek geeft Paciola een overzicht van het regelmatige veelhoeken · VIII. Carl Friedrich Gauss · IX. De rij van Fibonacci · X. Leonardo van Pisa

Broer, H.W.

251

Fluid Mechanics from the Beginning to the Third Millennium*  

E-print Network

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±1519 the value of wind- breaks to keep top soil in place and to protect fragile crops. ARCHIMEDES TO LEONARDO

Gad-el-Hak, Mohamed

252

Remote Telesurgery Daniel Obenshain and Tom Tantillo  

E-print Network

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

Amir, Yair

253

Reading Guide for The Golden Ratio: The Story of Chapter 1. Prelude to a Number  

E-print Network

Pacioli, Leonardo da Vinci, , and the divine proportion. 28. According to Pacioli, why is divine? 29. Discuss the philosophy of form behind Leonardo da Vinci's Vitruvian Man. 30. Who was Albrecht D¨urer? 31 of Good Nature 18. Who was Leonardo of Pisa? Note the things he is remembered for. 19. Who was Fibonacci

Anderson, Douglas R.

254

INTERNATIONAL JOB FAIR 7th October 2014  

E-print Network

P.zza Leonardo da Vinci, 32 20133 Milano · Company Stand/desk · Presentations or Workshops.zza Leonardo da Vinci, 32 20133 Milano, Italy #12; COMPANY CAN DO WHY PARTICIPATE TUESDAY OCT 7 2014 10.00 am ­ 6.00 pm Politecnico di Milano Leonardo Campus

255

MEDKAL CHAZLARIN 3 BOYUTLU WEB TABANLI Ö?RETLMES  

Microsoft Academic Search

In this study, three dimensional medical equipment models which are used in hospital intensive care unit have been described over moodle education management system teaching with distance education techniques. The project named as 3DWebEPL (3D Web-based learning and training in the field of the Enterprise Product Lifecycle) is supported by as part of Leonardo da Vinci Lifelong Learning Programme. In

Ali Hakan IIK; Eda AKMAN

256

Postural ergonomics during robotic and laparoscopic gastric bypass surgery: a pilot project  

Microsoft Academic Search

We hypothesized that a laparoscopic technique for Roux-en-Y gastric bypass surgery is associated with more musculoskeletal\\u000a discomfort and ergonomic strain than a robotic technique. This pilot project studied one surgeon while he performed four laparoscopic\\u000a and four robotic (da Vinci system) Roux-en-Y gastric bypass procedures. We measured musculoskeletal discomfort with body part\\u000a discomfort score (BPD) and ergonomic positioning with the

Elise H. Lawson; Myriam J. Curet; Barry R. Sanchez; Rob Schuster; Ramon Berguer

2007-01-01

257

Robot-assisted total laparoscopic hysterectomy in obese and morbidly obese women  

Microsoft Academic Search

Total laparoscopic hysterectomy (TLH) in obese patients is challenging. We sought to evaluate whether total laparoscopic hysterectomies\\u000a using the da Vinci robotic system in obese patients, in comparison with non-obese patients, is a reasonable surgical approach.\\u000a One-hundred consecutive robot-assisted TLHs were performed over a 17-month period. Obesity was not a contraindication to robotic\\u000a surgery, assuming adequate respiratory function to tolerate

Sonia A. Rebeles; Howard G. Muntz; Carrie Wieneke-Broghammer; Emily S. Vason; Kathryn F. McGonigle

2009-01-01

258

Career of the Month: An Interview with Cryptographer Bruce Schneier  

NSDL National Science Digital Library

For the general public, the field of cryptography has recently become famous as the method used to uncover secrets in Dan Brown's, "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 society, Cryptographers such as Bruce Schneier provide security systems for computers and networks. Students will be mesmerized as the secrets of this thrilling career are revealed.

Sullivan, Megan

2005-11-01

259

Transperitoneal Robot-Assisted Laparoscopic Radical Prostatectomy: Anterior Approach  

Microsoft Academic Search

\\u000a The American Cancer Society reported the 2008 prostate cancer incidence to be 186,320 with 28,660 deaths. Approximately one\\u000a in six men will develop prostate cancer in their lifetime. The past several years have witnessed a rapid adoption of the use\\u000a of the da Vinci® Surgical System (Intuitive Surgical Inc., Sunnyvale, CA) for radical prostatectomy. Although Abbou first reported this procedure

Joshua M. Stern; David I. Lee

260

Case report - Coronary A novel internal thoracic artery harvesting technique via subxiphoid approach - for the least invasive coronary artery bypass grafting  

Microsoft Academic Search

We have performed 12 cases of robotically assisted coronary artery bypass grafting (CABG) to accomplish less invasive revascularization. In this report, we describe a new method of robotically assisted internal thoracic artery (ITA) harvesting via subxiphoid approach, using the da Vinci surgical system. A 22-year-old man with three-vessel coronary artery disease due to Kawasaki disease was referred to our institution

Munehisa Takata; Go Watanabe; Teruaki Ushijima; Norihiko Ishikawa

261

Evolução da regulamentação da mídia eletrônica no Brasil  

Microsoft Academic Search

comunicação eletrônica e de massa como hoje a conhecemos por meio do rádio, da televisão, dos telefones, da internet ou de qualquer conver- gência tecnológica está prestes a passar por mais uma mudança estrutural: da transmissão analógica para a transmissão digital. Essa mudança vai possibi- litar inúmeras - e ainda não totalmente conhecidas - formas de interligação desses meios. Tal

Edgard Rebouças; Mariana Martins

2007-01-01

262

Data da Solicitao:_________ Hora:_____________________  

E-print Network

Aluno Dados pessoais Nome: Telefone: CPF: E-mail: Dados de Matrícula ( ) Asa Norte ( ) Ceilândia outro titular preencher os dados abaixo do responsável pela conta. Nome do Titular: CPF do Titular da

Maier, Rudolf Richard

263

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

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…

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

264

Aves Aquáticas da Lagoa da Pampulha: Seleção de hábitats e atividade diurna  

Microsoft Academic Search

Wading birds at Lagoa da Pampulha: Habitat selection and diurnal activity. The wading bird communities in lacunar systems are mainly structured based on the availability and distribution of feeding resources and appropriate conditions for their reproduction and establishment. As a result, in a given habitat, each species selects, according to the possibilities of its behavioral repertoire, the best way to

Flávio E. Pimenta; João C. P. Drummond; Ana C. Lima

265

CARACTERÍSTICAS, OPERACIONALIDADE E PRODUÇÃO DA FROTA SERREIRA NO MUNICÍPIO DA RAPOSA - MA  

Microsoft Academic Search

Este trabalho aborda as características, operacionalidade e produção pesqueira da frota serreira, no município da Raposa, no período de março a dezembro de 2003, com desembarques nos portos da Praia da Raposa e Braga. Os dados utilizados são provenientes da Capitania dos Portos do Maranhão, Progra- ma Revizee (Recursos Vivos da Zona Econômica exclusiva) e da comunidade de pescadores do

Elizabeth Galvão Soares; Milton Gonçalves da Silva Júnior

266

Professor R.P. Vinci rpv2@lehigh.edu  

E-print Network

/compression · Displacement: µm ­ mm range · Tension, compression, 3- or 4- point bending · Typical specimens: wires, foils Microscope (ESEM) in-situ testing compatibility · Load cells: 250 g-f, 100 lbs., 1000 lbs., tension

Gilchrist, James F.

267

76 FR 72087 - Special Conditions: Diamond Aircraft Industries, Model DA-40NG; Electronic Engine Control (EEC...  

Federal Register 2010, 2011, 2012, 2013, 2014

...which is a derivative of the model DA-40 currently approved...with the Austro Engine GmbH model E4 diesel engine and an increased...mechanical control system on the model DA-40NG airplane. The EEC...1309 and propulsion system capabilities and failure...

2011-11-22

268

76 FR 55293 - Special Conditions: Diamond Aircraft Industries, Model DA-40NG; Electronic Engine Control (EEC...  

Federal Register 2010, 2011, 2012, 2013, 2014

...which is a derivative of the model DA-40 currently approved...with the Austro Engine GmbH model E4 diesel engine and an increased...mechanical control system on the model DA-40NG airplane. The EEC...1309 and propulsion system capabilities and failure...

2011-09-07

269

ANÁLISE DA COMPETITIVIDADE DA FRUTICULTURA BRASILEIRA FRENTE A MUNDIAL  

Microsoft Academic Search

O presente estudo teve como objetivo analisar a competitividade da fruticultura brasileira frente aos maiores produtores das principais frutas que compõem nossa pauta de exportação: banana, citros (laranja, lima\\/limão e tangerina), maçã, mamão, manga, melão e uva – apresentadas em ordem alfabética. Juntas representaram em 2007 cerca de 93% da receita gerada com a exportação de frutas no País. Foi

Aline Vitti; Margarete Boteon

2008-01-01

270

Da Causalidade à Indecidibilidade em Ciências da Terra  

Microsoft Academic Search

As Ciências da Terra estudam a historia da Terra mas também os processos que aí ocorrem. São simultaneamente Ciências Históricas e Dinâmicas. O principio das causas actuais, enunciado por Lyell no século XIX, procurava explicar o passado a partir do presente e levou ao uniformismo, que suplantou o catastrofismo ainda no século XIX. Mas a observação dos processos em profundidade

A. Ribeiro

271

Leonardo's Codex Leicester  

NSDL National Science Digital Library

This Web site contains information from the American Museum of Natural History exhibition offering insight into the awe-inspiring mind of Leonardo da Vinci and examines the creativity of the scientific process. Although the exhibit is now closed, the site contains useful information on da Vinci's work including the Codex Leicester, a discussion of how scientific observation and research informed his paintings and drawings, a look at the scientific beliefs of his day and at Da Vinci's role as a leading anatomist, brilliant inventor, and phenomenally acute observer and a quick look at the experiments and phenomena illustrated in the Codex that were re-created as part of the exhibit.

272

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

E-print Network

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

Ruiz, Jesús M.

273

Comportamento da freqüência cardíaca e da pressão arterial, ao longo da gestação, com treinamento no meio líquido  

Microsoft Academic Search

RESUMO Objetivo: O objetivo deste estudo foi avaliar o comportamento da freqüência cardíaca (FC) ao longo da gestação, antes, durante e após as aulas de hidroginástica, e o da pressão arterial (PA) antes e após o mesmo exercício. Métodos: A amostra foi composta por sete gestantes. A leitura da FC foi realizada em três momentos: 1) na artéria radial, em

Ilana Finkelstein; Roberta Bgeginski; Marcus Peikriszwili Tartaruga; Cristine Lima Alberton; Luiz Fernando Martins Kruel

2006-01-01

274

RESULTADOS DA I CONVOCATORIA DO  

E-print Network

de Ciencias do Deporte e a E.F. 16 14 9 6 3 Facultade de Ciencias Económicas e Empresariais 13 5 3 1 Saúde Facultade de Ciencias do Deporte e a E.F. Facultade de Ciencias Económ icas e Em presariais Ciencias da Educación Facultade de Ciencias da Saúde Facultade de Ciencias do Deporte e a E.F. Facultade de

Fraguela, Basilio B.

275

Hemispheric differences in the mesostriatal dopaminergic system  

PubMed Central

The mesostriatal dopaminergic system, which comprises the mesolimbic and the nigrostriatal pathways, plays a major role in neural processing underlying motor and limbic functions. Multiple reports suggest that these processes are influenced by hemispheric differences in striatal dopamine (DA) levels, DA turnover and its receptor activity. Here, we review studies which measured the concentration of DA and its metabolites to examine the relationship between DA imbalance and animal behavior under different conditions. Specifically, we assess evidence in support of endogenous, inter-hemispheric DA imbalance; determine whether the known anatomy provides a suitable substrate for this imbalance; examine the relationship between DA imbalance and animal behavior; and characterize the symmetry of the observed inter-hemispheric laterality in the nigrostriatal and the mesolimbic DA systems. We conclude that many studies provide supporting evidence for the occurrence of experience-dependent endogenous DA imbalance which is controlled by a dedicated regulatory/compensatory mechanism. Additionally, it seems that the link between DA imbalance and animal behavior is better characterized in the nigrostriatal than in the mesolimbic system. Nonetheless, a variety of brain and behavioral manipulations demonstrate that the nigrostriatal system displays symmetrical laterality whereas the mesolimbic system displays asymmetrical laterality which supports hemispheric specialization in rodents. The reciprocity of the relationship between DA imbalance and animal behavior (i.e., the capacity of animal training to alter DA imbalance for prolonged time periods) remains controversial, however, if confirmed, it may provide a valuable non-invasive therapeutic means for treating abnormal DA imbalance. PMID:24966817

Molochnikov, Ilana; Cohen, Dana

2014-01-01

276

DATA ASSESSMENT REPORTS FOR CEMS AT SUBPART DA FACILITIES  

EPA Science Inventory

EPA promulgated minimum quality assurance (QA) requirements for Continuous Emission Monitoring Systems (CEMS) in 40 CFR Part 60 Appendix F. Appendix F requires Da source owners to develop site-specific QA plans and report the results of EPA specified QA activities each calendar q...

277

A review of "Bodily Extremities: Preoccupations with the Human Body in Early Modern European Culture." by Florike Egmond and Robert Zwijnenberg eds.  

E-print Network

result, the skin becomes a jailer and a representation of sin that clouds the soul. The next essay, Robert Zwijnenberg?s discussion of da Vinci?s St. John the Baptist, comes to two conclusions. The first is that to da Vinci, ?painting can only... be understood properly if the special and tight relationship between body and soul is assessed critically? (56). He then concludes that ?we must consider Saint John the Baptist as Leonardo?s intellectual self-portrait? (67). Harald Hendrix?s chapter addresses...

Rebecca De Haas

2004-01-01

278

Under(lining) Leh : the order of consciousness  

E-print Network

"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 ...

Bagai, Radhika

1994-01-01

279

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

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)

Wilson Libr Bull, 1970

1970-01-01

280

Leonardo's Tree Theory.  

ERIC Educational Resources Information Center

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)

Werner, Suzanne K.

2003-01-01

281

CONTROVERSIES ON NATURE AS UNIVERSAL LEGALITY (1680-1710) (SOPHIE ROUX)  

E-print Network

in Leonardo da Vinci, Johannes Kepler and especially in Galileo Galilei, an idea of Nature as an imminent in the works of Galileo Galilei, René Descartes, Francis Bacon, Robert Boyle, Baruch Spinoza, Christiaan

Paris-Sud XI, Université de

282

SAGES Report: NOTES-deployed mini robot turns surgery into Game Boy Posted By Christopher Kelly On April 11, 2008  

E-print Network

deploying da Vinci instrumentation through transvaginal and transcolonic trocars. At the NOTES symposium unanswered (at least to us). It wasn't clear, for example, how the short arms would reach certain structures

Farritor, Shane

283

Development and Characterization of Novel Alumina Based Ceramic Matrix Composites for Energy Efficient Sliding Applications  

E-print Network

cannot ride on the roads without friction. Friction was first studied and documented by Leonardo da Vinci (1452-1519). Later, in 1699 Amontons formulated the laws of friction which are: ? Friction is proportional to the normal load ? Frictional force...

Paluri, Rajeshwari S. Lakshmi

2012-10-19

284

Haitian-English Medical Phraseology  

E-print Network

-1588). Drawings for the body are by Leonardo da Vinci (1452-1519). TABLE OF CONTENTS / SA K NAN LIV LA Page / Paj INTRODUCTION / YON TI RALE 11 Your interpreter / Entepret ou..................................................... 12 Acknowledgments / Remesiman...

Freeman, Bryant C.

1997-01-01

285

Anatomy and art.  

PubMed

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

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

2013-01-01

286

Pelvic lymph node dissection and outcome of robot-assisted radical cystectomy for bladder carcinoma  

E-print Network

open cystectomy. Robot-assisted surgery (da Vinci Surgicalopen surgery, can be performed safely with robot assistance.Surgeries were performed by a single fellowship-trained, urologic oncologist, who had previously performed 110 robot-

Gamboa, Aldrin J.; Young, Jennifer L.; Dash, Atreya; Abraham, Jose Benito; Box, Geoffrey N.; Ornstein, David K.

2009-01-01

287

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

288

An image processing of a Raphael's portrait of Leonardo  

E-print Network

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.

Sparavigna, Amelia Carolina

2011-01-01

289

Harry Potter's World: Renaissance Science, Magic and Medicine  

Microsoft Academic Search

The Awakening of a Renaissance Spirit: Finding Harry Potter\\u000aBetsy Pudliner, Assistant Professor, Family and Consumer Sciences\\u000aThis workshop will demonstrate a correlation between Leonardo da Vinci, Joseph Campbell’s A Hero’s Journey, Harry Potter, and travel. Da Vinci and Harry Potter were on a quest to awaken their inner spirit of genius through the exploration and exposure to the world

Betsy A. Pudliner

2009-01-01

290

The "writer's soul" and the biographer's craft: the biographical situation, or the countertransferential aspects of the biographer-subject relationship  

E-print Network

. . . they thus present us with what is in fact a cold, strange, ideal figure, instead of a human being to whom we might feel ourselves distantly related. " --Sigmund Freud, Leonardo a Vinci Freud's provocative statement that "biographers are fixated.... Da el (Member) J. Lawrence Mitchell (Head of Department) August 1993 Major Subject: English Freud wrote in his biographical study of Leonardo da Vinci that "biographers are fixated on their heroes. " This fixation has been labelled...

Burke, Andrew Reid

2012-06-07

291

Time lapse HDR: time lapse photography with high dynamic range images  

E-print Network

results in clipping large parts of the dynamic range, and therefore lost information in highlights and shadows. The result is a plain LDR image. ................................ 13 viii FIGURE Page 9 The Dreyfus Madonna by Leonardo da Vinci [2... da Vinci [2]. In this painting and many others, the difference in brightness between the inside and outside doesn?t seem unnatural to the eye, but would not be possible with a conventional exposure in natural light. The brightness of outdoor objects...

Clark, Brian Sean

2005-08-29

292

NOMBRES PROPIOS DE LA GEOMETRIA PROYECTIVA 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 2000  

E-print Network

´ojico ya descrito por Leonardo da Vinci. El primer matem´atico que hizo uso de estas ideas fue el franc-1472) z P. della Francesca (1416-1492) z A. Mantegna (1431-1506) z L. Pacioli (1445-1517) z L. da Vinci (1452-1519) z A. Durero (1471-1528) z Rafael Sanzio (1483-1520) z H. Holbein el Joven (1497-1543) z J

Ruiz, Jesús M.

293

12 P I T T M E D12 P I T T M E D S U M M E R 2 0 1 1 13  

E-print Network

-armed robot to perform more precise surgery in smaller spaces. The robot's name: The da Vinci, after the man S O F F A T T H E S C H O O L O F M E D I C I N E | B Y J O E M I K S C H OF MED AND MACHINE Robots computing, did human work. About five centuries ago, Leonardo da Vinci sketched out a humanoid robot

Sibille, Etienne

294

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

PubMed

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

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

2014-06-01

295

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

nº __________________________e CPF ___________________________________, inscrito no Concurso Público do Titular da Conta: ______________________________________________________________ CPF do Titular da: _______________________________________ E-mail: _________________________________________ 3. Anexar cópia do RG; CPF; comprovante

Paraná, Universidade Federal do

296

Ministrio da Educao Universidade Federal do Paran  

E-print Network

Extensão Gestão da qualidade dos alimentos nos Armazéns da Família da Secretaria Municipal do Abastecimento, lipídios, carboidratos, fibra alimentar, sódio e valor calórico) dos alimentos comercializados nos Armazéns de Curitiba e Laboratório de Análise de Alimentos do Departamento de Nutrição da UFPR Inscrições

Paraná, Universidade Federal do

297

SERVIO PBLICO FEDERAL MINISTRIO DA EDUCAO  

E-print Network

entregue lacrado no ato da inscrição (Anexo I); c) cópias autenticadas da Carteira de Identidade (CI) e CPF CI e CPF. No caso de candidato estrangeiro, deve-se apresentar cópia autenticada da página de

Floeter, Sergio Ricardo

298

System  

NASA Astrophysics Data System (ADS)

Molecular dynamics simulations were carried out to investigate the anionic structures of the molten CaO-SiO2-P2O5 system. The results show that the average first nearest-neighbor distances for Si-O and P-O pairs are 1.61 and 1.53 Å, respectively. As expected, above 98 pct P and 95 pct Si show fourfold coordination and form tetrahedral structures. Due to the high basicity, nonbridging oxygen occupies a predominant position in Si and P tetrahedron. Based on the oxygen number of different types, the structures of both Si and P tetrahedron were classified as Q 0, Q 1, Q 2, Q 3, and Q 4, where the superscript referred to the number of bridging oxygen atoms. With the substitution of P2O5 for SiO2, Q 0 decreased and other type of Q i units increased. For Si tetrahedron, Q 2 and Q 3 show most notable change, for P tetrahedron, Q 1and Q 2 show the most notable change. The change of Q i units for Si tetrahedron is larger than that for P tetrahedron. The concentration of free oxygen decreases remarkably with the increase of P2O5 content. The Si-O-P linkage is energetically more favorable than Si-O-Si and P-O-P linkages. P ion has a tendency to promote the polymerization of phosphosilicate melts.

Diao, Jiang; Fan, Guozheng; Liu, Xuan; Xie, Bing

2014-10-01

299

Completely intracorporeal robotic-assisted laparoscopic ileovesicostomy.  

PubMed

We present a report of a completely intracorporeal robotic-assisted laparoscopic ileovesicostomy with long term follow-up. The patient was a 55-year-old man with paraplegia secondary to tropical spastic paresis resulting neurogenic bladder dysfunction. The procedure was performed using a da Vinci Surgical system (Intuitive Surgical, Sunnyvale, CA) and took 330 minutes with an estimated blood loss of 100?mL. The patient recovered without perioperative complications. He continues to have low pressure drainage without urethral incontinence over two years postoperatively. PMID:24600527

Dolat, Maryellen T; Wade, Greg; Grob, B Mayer; Hampton, Lance J; Klausner, Adam P

2014-01-01

300

Completely Intracorporeal Robotic-Assisted Laparoscopic Ileovesicostomy  

PubMed Central

We present a report of a completely intracorporeal robotic-assisted laparoscopic ileovesicostomy with long term follow-up. The patient was a 55-year-old man with paraplegia secondary to tropical spastic paresis resulting neurogenic bladder dysfunction. The procedure was performed using a da Vinci Surgical system (Intuitive Surgical, Sunnyvale, CA) and took 330 minutes with an estimated blood loss of 100?mL. The patient recovered without perioperative complications. He continues to have low pressure drainage without urethral incontinence over two years postoperatively. PMID:24600527

Dolat, MaryEllen T.; Wade, Greg; Grob, B. Mayer; Hampton, Lance J.; Klausner, Adam P.

2014-01-01

301

Use of Robotics During Laparoscopic Gastric Bypass for Morbid Obesity  

PubMed Central

To evaluate the theoretical increased precision offered by utilization of the robotic instrument, we attempted to determine whether incorporation of its use into traditional laparoscopic gastric bypass would duplicate or improve the success of the operation without increasing complications. The Roux-en-Y gastric bypass is the most commonly performed procedure for morbid obesity in the United States. We performed 120 gastric bypass procedures with traditional laparoscopy during a 30-month period. We began introducing the da Vinci Robotic Surgical System into our laparoscopic gastric bypass procedure and evaluated its effectiveness. PMID:16121869

Artuso, Dominick; Grossi, Robert

2005-01-01

302

Robotic Prostatectomy: What We Have Learned and Where We Are Going  

PubMed Central

Radical prostatectomy became a mainstay of treatment for prostate cancer in the United States after the pioneering work of Walsh in defining the nerve sparing technique. Efforts to reproduce this operation in a minimally invasive fashion resulted in slow progress that recently have flourished with the application of the daVinci Surgical System (Intuitive Surgical, Sunnyvale, CA, USA) by Menon and colleagues. This article summarizes the origins of robotic prostatectomy, some of the current data regarding this operation and potential future directions. PMID:19430547

2009-01-01

303

Lembranías da Companhia dramática Nacional  

E-print Network

Melhor Atriz, em A 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... Falecida, de Nelson Rodrigues, A Raposa e as Uvas, de Guilherme Figueiredo, e Canção dentro do Pão, de R. Magalhães Jr. Três diretores-encenadores trabalharam simultaneamente as peças mencionadas a saber, respectivamente, José Maria Monteiro, Bibi...

Calvet, Aldo

1984-04-01

304

Current advances in fused tetrathiafulvalene donor-acceptor systems.  

PubMed

Electron donor (D) and acceptor (A) systems have been studied extensively. Among them, fused D-A systems have attracted much attention during the past decades. Herein, we will present the evolution of tetrathiafulvalene (TTF) fused D-A systems and their potential applications in areas such as solar cells, OFETs, molecular wires and optoelectronics just to name a few. The synthesis and electrochemical, photophysical and intrinsic properties of fused D-A systems will be described as well. PMID:25256117

Bergkamp, Jesse J; Decurtins, Silvio; Liu, Shi-Xia

2015-02-10

305

Draft version of: "Alexandre Baro, Alberto Rodrigues da Silva, "Applying SNARE-RCO to Evaluate the Relational Capital of an Organization: The SH Case Study". Book chapter in "Sociotechnical Enterprise Information Systems Design  

E-print Network

the relational capital of organizations (Zadjabbari, Wongthongtham, & Hussain, 2008). Social network systems the Relational Capital of an Organization: The SH Case Study". Book chapter in "Sociotechnical Enterprise Information Systems Design and Integration." IGI Global, 2013". Applying SNARE-RCO to Evaluate the Relational

da Silva, Alberto Rodrigues

306

?, ?' Studies with the KLOE Detector at DA?NE  

Microsoft Academic Search

The KLOE detector is operational since spring '99 at DA?NE, the Frascati e+e- collider, a ?-factory running at 1.02 GeV c.m. energy. This detector has been designed and built with the primary goal of measuring Re(?' \\/ ?), the CP violation parameter in the kaon system, with a sensitivity of about one part in ten thousands. Apart from CP studies

A Farilla; A Aloisio; F Ambrosino; A Antonelli; M Antonelli; C Bacci; G Bencivenni; S Bertolucci; C Bini; C Bloise; V Bocci; F Bossi; P Branchini; S A Bulychjov; R Caloi; P Campana; G Capon; G Carboni; M Casarsa; V Casavola; G Cataldi; F Ceradini; F Cervelli; F Cevenini; G Chiefari; P Ciambrone; S Conetti; E De Lucia; G De Robertis; P De Simone; G De Zorzi; S Dell'Agnello; A Denig; A Di Domenico; C Di Donato; S Di Falco; A Doria; M Dreucci; O Erriquez; G Felici; A Ferrari; M L Ferrer; G Finocchiaro; C Forti; A Franceschi; P Franzini; C Gatti; P Gauzzi; S Giovannella; E Gorini; F Grancagnolo; E Graziani; S W Han; M Incagli; L Ingrosso; W Kluge; C Kuo; V Kulikov; F Lacava; G Lanfranchi; J Lee-Franzini; D Leone; F Lu; M Martemianov; M Matsyuk; W Mei; L Merola; R Messi; S Miscetti; M Moulson; S Müller; F Murtas; M Napolitano; A Nedosekin; F Nguyen; M Palutan; L Paoluzi; E Pasqualucci; L Passalacqua; A Passeri; V Patera; E Petrolo; L Pontecorvo; M Primavera; F Ruggieri; P Santangelo; E Santovetti; G Saracino; R D Schamberger; B Sciascia; A Sciubba; F Scuri; I Sfiligoi; T Spadaro; E Spiriti; G L Tong; L Tortora; E Valente; P Valente; B Valeriani; G Venanzoni; S Veneziano; A Ventura; G Xu; G W Yu

2002-01-01

307

Blockade of Atopic Dermatitis-Like Skin Lesions by DA9102, a Natural Medicine Isolated from Actinidia arguta, in the Mg-Deficiency Induced Dermatitis Model of Hairless Rats  

Microsoft Academic Search

DA-9102 isolated from Actinidia arguta is a candidate of natural medicine currently under Phase II clinical trial for atopic dermatitis in Korea. In this study, spontaneous dermatitis was induced by magnesium deficiency in hairless rats and this system was applied to assess the suppressive effects of DA- 9102 on atopic dermatitis-like skin disease. Oral administration of DA-9102 at a dose

JEONG JUNE CHOI; DONG HEE KIM; MYOUNG-YUN PYO; MIRIM JIN; Yongsan Ku

308

Marko Bohanec Systems and TechniquesSystems and Techniques  

E-print Network

, and systems for supporting complex real-life decision-making tasks · Decision Analysis ­ Decision Modeling--MakingMaking Decision Systems Normative Decision Sciences Descriptive Decision Support OR/MS DA DSS Other Decision trees·1 Marko Bohanec Systems and TechniquesSystems and Techniques of Decision Supportof Decision

Bohanec, Marko

309

The Evolution of Dopamine Systems in Chordates  

PubMed Central

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

Yamamoto, Kei; Vernier, Philippe

2011-01-01

310

Design, modeling and advanced control of the innovative parallel manipulator PaLiDA  

Microsoft Academic Search

The innovative parallel manipulator PaLiDA is the subject of this paper. Main aspects are treated from the design and concept of the drives to the advanced control concept of the complete system. A commercial direct linear drive is integrated into newly designed struts variable in length. The system's design and the strut's arrangement are carried out based on the optimization

Berend Denkena; Bodo Heimann; H. Adbellatif; Christian Holz

2005-01-01

311

In vitro degradation of the 32kDa PS II reaction centre protein  

SciTech Connect

The 32kDa thylakoid membrane protein is an integral component of the PS II reaction centre. The protein, although stable in the dark, undergoes light dependent turnover. Light from the UV, visible and far-red spectral regions induce 32kDa protein degradation. To better understand 32kDa protein metabolism, an in vitro degradation system is being developed. It consists of isolated thylakoid membranes than contain radiolabelled protein. The 32kDa protein is actively and specifically degraded when the thylakoid preparation is exposed to UV or visible radiation. The protein is stable in the dark. The herbicides (atrazine and DCMU) inhibit degradation in the in vitro system as they do in vivo. Additionally, several methods of isolating thylakoids are being compared to optimize the 32kDa protein degradation reaction. The preparations will be evaluated based on their ability to permit light dependent degradation of the 32kDa protein without affecting the other membrane components.

Eckenswiller, L.C.; Greenberg, B.M. (Univ. of Waterloo, Ontario (Canada))

1989-04-01

312

UROLOGIC ROBOTS AND FUTURE DIRECTIONS  

PubMed Central

Purpose of review Robot-assisted laparoscopic surgery in urology has gained immense popularity with the Da Vinci system but a lot of research teams are working on new robots. The purpose of this paper is to review current urologic robots and present future developments directions. Recent findings Future systems are expected to advance in two directions: improvements of remote manipulation robots and developments of image-guided robots. Summary The final goal of robots is to allow safer and more homogeneous outcomes with less variability of surgeon performance, as well as new tools to perform tasks based on medical transcutaneous imaging, in a less invasive way, at lower costs. It is expected that improvements for remote system could be augmented reality, haptic feed back, size reduction and development of new tools for NOTES surgery. The paradigm of image-guided robots is close to a clinical availability and the most advanced robots are presented with end-user technical assessments. It is also notable that the potential of robots lies much further ahead than the accomplishments of the daVinci system. The integration of imaging with robotics holds a substantial promise, because this can accomplish tasks otherwise impossible. Image guided robots have the potential to offer a paradigm shift. PMID:19057227

Mozer, Pierre; Troccaz, Jocelyne; Stoianovici, Dan

2009-01-01

313

Therapeutic effect of infused Fluosol-DA/carbogen with ephedrine, flunarizine, or nitroprusside  

SciTech Connect

The perfluorochemical emulsion Fluosol-DA plus carbogen breathing has been shown to increase the effectiveness of radiation therapy in preclinical solid tumors when the emulsion was administered by i.v. bolus injection. Much of the enhancement in tumor radiation response was lost when the emulsion was administered slowly. The authors hypothesized that an increase in tumor perfusion resulted when Fluosol-DA was administered rapidly. In the present study, the [alpha]/[beta] agonist ephedrine, the Ca[sup 2+] channel blocker flunarizine and the nitric oxide producing vasodilating drug nitroprusside have been tested. Ephedrine administration resulted in a decrease in the radiation plus Fluosol-DA [+-] carbogen antitumor effects in both the Lewis lung carcinoma and FSaIIC tumor systems. In contrast, flunarizine administration resulted in an increase in the efficacy of the radiation plus carbogen and the radiation plus Fluosol-DA/carbogen in both emulsion was given rapidly. Even with flunarizine administration Fluosol-DA delivered slowly was less effective than when the emulsion was given rapidly. Flunarizine with Fluosol-DA infused i.v. over 30 min followed by carbogen breathing prior to and during radiation therapy resulted in a 1.7-1.6-fold increase in response compared with 2.4-2.2-fold with Fluosol-DA administered by injection i.v. and carbogen breathing prior to and during radiation therapy using growth delay of the Lewis lung carcinoma. The effects of nitroprusside were complex. This drug had considerably more effect at 10 Gy than at higher radiation doses. These studies suggest that Fluosol-DA given by i.v. injection may increase tumor perfusion and that a drug like flunarizine may be beneficial if the Fluosol-DA is administered slowly followed by carbogen breathing and radiation therapy. 45 refs., 4 figs.

Teicher, B.A.; Holden, S.A.; Northey, D.; Dewhirst, M.W.; Herman, T.S.

1993-04-30

314

Ministrio da Educao Secretaria de Educao Superior  

E-print Network

63/2010, da DN TCU nº 127/2013, da Portaria TCU nº 175/2013 e das orientações do órgão de controle Telefones: (61) 3107-0610 e 3107-0612 Fax: (61) 3274-5915 http://www.unb.br ­ dpo@unb.br #12;Gestor e Editor

Maier, Rudolf Richard

315

MINISTRIO DA EDUCAO SECRETARIA DE EDUCAO SUPERIOR  

E-print Network

estudante deverá informar seu número do Cadastro de Pessoas Físicas (CPF) da Secretaria da Receita Federal do Brasil (RFB) e prestar todas as informações solicitadas pelo Sistema. § 2° Somente serão ofertados

316

Novel application of simultaneous multi-image display during complex robotic abdominal procedures  

PubMed Central

Background The surgical robot offers the potential to integrate multiple views into the surgical console screen, and for the assistant’s monitors to provide real-time views of both fields of operation. This function has the potential to increase patient safety and surgical efficiency during an operation. Herein, we present a novel application of the multi-image display system for simultaneous visualization of endoscopic views during various complex robotic gastrointestinal operations. All operations were performed using the da Vinci Surgical System (Intuitive Surgical, Sunnyvale, CA, USA) with the assistance of Tilepro, multi-input display software, during employment of the intraoperative scopes. Three robotic operations, left hepatectomy with intraoperative common bile duct exploration, low anterior resection, and radical distal subtotal gastrectomy with intracorporeal gastrojejunostomy, were performed by three different surgeons at a tertiary academic medical center. Results The three complex robotic abdominal operations were successfully completed without difficulty or intraoperative complications. The use of the Tilepro to simultaneously visualize the images from the colonoscope, gastroscope, and choledochoscope made it possible to perform additional intraoperative endoscopic procedures without extra monitors or interference with the operations. Conclusion We present a novel use of the multi-input display program on the da Vinci Surgical System to facilitate the performance of intraoperative endoscopies during complex robotic operations. Our study offers another potentially beneficial application of the robotic surgery platform toward integration and simplification of combining additional procedures with complex minimally invasive operations. PMID:24628761

2014-01-01

317

Next Generation PanDA Pilot for ATLAS and Other Experiments  

NASA Astrophysics Data System (ADS)

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.

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

318

Toxoplasma gondii 70 kDa Heat Shock Protein: Systemic Detection Is Associated with the Death of the Parasites by the Immune Response and Its Increased Expression in the Brain Is Associated with Parasite Replication  

PubMed Central

The heat shock protein of Toxoplasma gondii (TgHSP70) is a parasite virulence factor that is expressed during T. gondii stage conversion. To verify the effect of dexamethasone (DXM)-induced infection reactivation in the TgHSP70-specific humoral immune response and the presence of the protein in the mouse brain, we produced recombinant TgHSP70 and anti-TgHSP70 IgY antibodies to detect the protein, the specific antibody and levels of immune complexes (ICs) systemically, as well as the protein in the brain of resistant (BALB/c) and susceptible (C57BL/6) mice. It was observed higher TgHSP70-specific antibody titers in serum samples of BALB/c compared with C57BL/6 mice. However, the susceptible mice presented the highest levels of TgHSP70 systemically and no detection of specific ICs. The DXM treatment induced increased parasitism and lower inflammatory changes in the brain of C57BL/6, but did not interfere with the cerebral parasitism in BALB/c mice. Additionally, DXM treatment decreased the serological TgHSP70 concentration in both mouse lineages. C57BL/6 mice presented high expression of TgHSP70 in the brain with the progression of infection and under DXM treatment. Taken together, these data indicate that the TgHSP70 release into the bloodstream depends on the death of the parasites mediated by the host immune response, whereas the increased TgHSP70 expression in the brain depends on the multiplication rate of the parasite. PMID:24801069

Barenco, Paulo Victor Czarnewski; Lourenço, Elaine Vicente; Cunha-Júnior, Jair Pereira; Almeida, Karine Cristine; Roque-Barreira, Maria Cristina; Silva, Deise Aparecida Oliveira; Araújo, Ester Cristina Borges; Coutinho, Loyane Bertagnolli; Oliveira, Mário Cézar; Mineo, Tiago Wilson Patriarca; Mineo, José Roberto; Silva, Neide Maria

2014-01-01

319

Stroemgren photometry of ZZ Ceti and other DA white dwarfs  

SciTech Connect

Stroemgren colors for a sample of 71 stars classified as DA white dwarfs are presented. Comparison with the recent model atmospheres of the Kiel group indicates that the average gravity of 63 stars of the sample is log g = 7.98 +- 0.31, with no indication of a dependence on the effective temperature. This is consistent with the theoretical expectation that white dwarfs evolve at constant gravity. Correlations between Stroemgren colors and Greenstein multichannel colors are also given, using 52 stars that have been observed in common in the two systems. These correlations are used to compare the data with a second set of model atmospheres computed by Shipman. Contrary to what has been suggested in the past, no fundamental differences are found when confronting the Stroemgren data with the DA model atmospheres of Shipman or those of the Kiel group. Finally, observations of 11 pulsating objects reveal the existence of a narrow instability strip in the range 13 000 K> or approx. =T/sub e/> or approx. =11 000 K in a ((u-b), (b-y)) two-color diagram. The present results add evidence to the contention that all DA white dwarfs evolve to become ZZ Ceti pulsators in the instability strip.

Fontaine, G.; Bergeron, P.; Lacombe, P.; Lamontagne, R.; Talon, A.

1985-06-01

320

Metal Lines in DA White Dwarfs  

NASA Astrophysics Data System (ADS)

We report Keck telescope HIRES echelle observations of DA white dwarfs in a continuation of an extensive search for metals. These spectra are supplemented with new JHK magnitudes that are used to determine improved atmospheric parameters. Of the DA white dwarfs not in binary or common proper motion systems, about 25% show Ca II lines. For these, Ca abundances are determined from comparison with theoretical equivalent widths from model atmosphere calculations; in a few cases we also obtain Mg, Fe, Si, and Al abundances. If Ca is not observed, we generally determine very stringent upper limits. We compare the data to predictions of previously published models involving the accretion/diffusion of interstellar matter and of comets. The derived abundances are not obviously compatible with the predictions of either model, which up to now could only be tested with traces of metals in helium-rich white dwarfs. By modifying certain assumptions in the published interstellar accretion model we are able to match the distribution of the elements in the white dwarf atmospheres, but, even so, tests of other expectations from this scenario are less successful. Because comet accretion appears unlikely to be the primary cause of the DAZ phenomenon, the data suggest that no more than about 20% of F-type main-sequence stars are accompanied by Oort-like comet clouds. This represents the first observational estimate of this fraction. A plausible alternative to the accretion of cometary or interstellar matter is disruption and accretion of asteroidal material, a model first suggested in 1990 to explain excess near-infrared emission from the DAZ G29-38. An asteroidal debris model to account for the general DAZ phenomenon does not presently disagree with the HIRES data, but neither is there any compelling evidence in support of such a model. The HIRES data indicate that in close red dwarf/white dwarf binaries not known to be cataclysmic variables there is, nonetheless, significant mass transfer, perhaps in the form of a wind flowing off the red dwarf. As a by-product we find from the kinematics of GD 165 a likely age of more than 2 Gyr for its probable brown dwarf companion GD 165B. This paper is based in part on observations obtained at the Calar Alto Observatory of the Deutsch-Spanisches Astronomisches Zentrum and at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and NASA. The Observatory was made possible by the generous financial suppport of the W. M. Keck Foundation. We have made use of the SIMBAD database at CDS.

Zuckerman, B.; Koester, D.; Reid, I. N.; Hünsch, M.

2003-10-01

321

Virtual observatory publishing with DaCHS  

NASA Astrophysics Data System (ADS)

The Data Center Helper Suite DaCHS is an integrated publication package for building VO and Web services, supporting the entire workflow from ingestion to data mapping to service definition. It implements all major data discovery, data access, and registry protocols defined by the VO. DaCHS in this sense works as glue between data produced by the data providers and the standard protocols and formats defined by the VO. This paper discusses central elements of the design of the package and gives two case studies of how VO protocols are implemented using DaCHS' concepts.

Demleitner, M.; Neves, M. C.; Rothmaier, F.; Wambsganss, J.

2014-11-01

322

The potentially dangerous asteroid 2012 DA14  

NASA Astrophysics Data System (ADS)

We present computing methods that allow us to study the behaviour of the dynamically interesting potentially dangerous asteroid 2012 DA14. Using the freely available ORBFIT software, we can follow the orbit of the asteroid backward and forward in the future, searching for close approaches to the Earth that might lead to possible impacts. The possible impact orbit for 2026 is computed. We show that it should be possible to recover asteroid 2012 DA14, mainly in 2013 February. It is highly unlikely that asteroid 2012 DA14 will hit any geosynchronous satellites during its close approach on 2013 February 15.

Wlodarczyk, I.

2012-12-01

323

[Current status of robotic surgery for gastric cancer].  

PubMed

Robotic surgery was launched in Japan in 2000.In particular, the development of the da Vinci S Surgical System was a major breakthrough. It was introduced in Japan for the first time through our hospital in January 2009. Since then, the number of surgical robots used has been dramatically increasing, with up to approximately 160 robots all over the country. To date, we have performed more than 500 robotic surgeries, including 180 gastrectomies, at our hospital. Our data suggest that compared with the conventional laparoscopic approach, the use of the da Vinci Surgical System in minimally invasive gastrectomy for gastric cancer might improve short-term outcomes, particularly in terms of preventing postoperative local complications. Thus, we believe that use of surgical robots become increasingly beneficial for more extensive resections and operations that require more advanced skills, even though a couple of issues remain to be solved, such as long operative time, high cost, and limited experience and evidence. In this article, the current status and future perspectives regarding robotic gastrectomy for gastric cancer are presented based on our experience and a review of the literature. PMID:25434438

Suda, Koichi; Ishida, Yoshinori; Uyama, Ichiro

2014-11-01

324

A novel internal thoracic artery harvesting technique via subxiphoid approach--for the least invasive coronary artery bypass grafting.  

PubMed

We have performed 12 cases of robotically assisted coronary artery bypass grafting (CABG) to accomplish less invasive revascularization. In this report, we describe a new method of robotically assisted internal thoracic artery (ITA) harvesting via subxiphoid approach, using the da Vinci surgical system. A 22-year-old man with three-vessel coronary artery disease due to Kawasaki disease was referred to our institution for coronary artery revascularization. A small subxiphoid incision was made, and the xiphoid process at the lower end of the sternum was excised. A U-shaped hook was inserted into the retrosternal space, and the lower sternum was lifted. A 30 degrees angle-up camera was inserted under the U-shaped hook, bilateral ITAs were harvested in a totally skeletonized fashion endoscopically. The required time for right ITA harvesting was 50 min, and that for the left was 20 min. After bilateral ITAs were harvested, composite grafts were made, and then the distal anastomoses were made. The patient was discharged six days after the operation. We performed a new robotically assisted bilateral ITA harvesting technique via sub-xiphoid safely and with excellent results. This method might be an evolutionary step of minimally invasive direct coronary artery bypass (MIDCAB) using the da Vinci surgical system. PMID:19720658

Takata, Munehisa; Watanabe, Go; Ushijima, Teruaki; Ishikawa, Norihiko

2009-11-01

325

Origin of the DA and non-DA white dwarf stars  

NASA Technical Reports Server (NTRS)

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.

Shipman, Harry L.

1989-01-01

326

PanDA Pilot Submission using Condor-G: Experience and Improvements  

E-print Network

PanDA is the workload management system of the ATLAS experiment, used to run 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 Tier 1 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 talk, 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...

Zhao, Xin; The ATLAS collaboration; Wlodek, Tom; Wenaus, Torre; Frey, Jaime; Tannenbaum, Todd; Livny, Miron

2010-01-01

327

PanDA Pilot Submission using Condor-G: Experience and Improvements  

E-print Network

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 resu...

Zhao, X; The ATLAS collaboration; Wlodek, T; Wenaus, T; Frey, J; Tannenbaum, T; Livny, M

2011-01-01

328

Dopamine system: manager of neural pathways  

PubMed Central

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

Hong, Simon

2013-01-01

329

Videobasierte Systeme  

NASA Astrophysics Data System (ADS)

Videosensoren spielen für Fahrerassistenz systeme eine zentrale Rolle, da sie die Interpretation visueller Informationen (Objektklassifikation) gezielt unterstützen. Im Heckbereich kann die Video sensorik in der einfachsten Variante die ultraschallbasierte Einparkhilfe bei Einpark- und Rangiervorgängen unterstützen. Beim Nachtsichtsystem NightVision wird das mit Infrarotlicht angestrahlte Umfeld vor dem Fahrzeug mit einer Frontkamera aufgenommen und im Fahrzeugcockpit auf einem Display dem Fahrer angezeigt (s. Nachtsichtsysteme). Andere Fahrerassistenzsysteme verarbeiten die Videosignale und generieren daraus gezielt Informationen, die für eigenständige Funktionen (z. B. Spurverlassenswarner) oder aber als Zusatzinformation für andere Funktionen ausgewertet werden (Sensordatenfusion).

Knoll, Peter

330

SOPHIA ANDRESEN: UMA POÉTICA DA FELICIDADE E DO DIA?  

Microsoft Academic Search

RESUMO: A comunicação aqui proposta aponta como linha de leitura da poesia de Sophia de Mello Breyner Andresen uma reflexão em torno da presença de ecos da lírica horaciana e da doutrina epicurista, seja como ponto declarado de divergência, de encontro e acordo, ou mesmo em intertextualidade com autores que trabalharam idéias e valores daquela doutrina, principalmente Pessoa - Reis.

Virgínia Bazzetti Boechat

331

CENTRO DE ENGENHARIAS DA MOBILIDADE CEM  

E-print Network

-Administrativos estão lotados em diversos setores como: Biblioteca, Infraestrutura, Laboratórios, Psicologia Organizacional, Secretaria Acadêmica, Secretaria Administrativa, Secretaria Executiva e Tecnologia da Informação

Floeter, Sergio Ricardo

332

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

CLAUDIA NOGUEIRA FRANCINE BAESSO GUIMAR�ES ASTRATH OMAR CL�O NEVES PEREIRA DANIEL GUIMAR�ES TEDESCO CAVALCANTE ALINE ROSSETTO DA LUZ Educação IVAIR FERNANDES DE AMORIM FABIO LUCIANO OLIVEIRA COSTA MARCELO

Paraná, Universidade Federal do

333

Ministrio da Educao Universidade Federal do Paran  

E-print Network

banco de dados com informações do acervo de etnologia; escanerização de material relativo a peças da e Patrimônio do MAE, como a catalogação das peças em base de dados, pesquisa a respeito da Cultura suporte e gênero documental (papel, filmes, documentos sonoros e outros): higienização, classificação

Paraná, Universidade Federal do

334

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Ministério da Educação UNIVERSIDADE FEDERAL DO PARANÁ Pró-Reitoria de Gestão de Pessoas EDITAL Nº Deferido Curitiba, 04 de novembro de 2014. Adriano do Rosário Ribeiro Pró-Reitor de Gestão de Pessoas Ministério da Educação UNIVERSIDADE FEDERAL DO PARANÁ Pró-Reitoria de Gestão de Pessoas EDITAL Nº 458

Paraná, Universidade Federal do

335

Jornal da UFF PROGRAMA DE ACOLHIMENTO ESTUDANTIL  

E-print Network

com a impossibilidade de fugir dela. O segundo momento se refere à morte da cachorra Baleia. Tanto progressiva animalização de Fabiano e sua família. Esta humanização atinge seu ápice no mo- mento da morte a nossa idéia de morte. As imagens do filme nos transmitem a sensação de afastamen- to, de perda do

Souza, Max O.

336

DaFEx: Database of Facial Expressions  

Microsoft Academic Search

\\u000a DaFEx (Database of Facial Expressions) is a database created with the purpose of providing a benchmark for the evaluation\\u000a of the facial expressivity of Embodied Conversational Agents (ECAs). DaFEx consists of 1008 short videos containing emotional\\u000a facial expressions of the 6 Ekman’s emotions plus the neutral expression. The facial expressions were recorded by 8 italian\\u000a professional actors (4 male and

Alberto Battocchi; Fabio Pianesi; Dina Goren-bar

2005-01-01

337

Situação da Mulher na Astronomia Brasileira  

NASA Astrophysics Data System (ADS)

O conteúdo desse texto surgiu de uma apresentação de mesmo título que fiz na XXXI Reunião Anual da Sociedade Astronômica Brasileira (SAB) em 2005. Esse tema foi inspirado originalmente pela minha participação no "2nd UIPAP International Conference on Women in Physics" realizado entre 23 e 25 de maio de 2005 no Rio de Janeiro. Essa é uma conferência internacional que acontece de três em três anos, sendo que a primeira ocorreu em 2002 na cidade de Paris, França. Participei dessa conferência como membro da delegação da Sociedade Brasileira de Física e um dos trabalhos que apresentei versava sobre a situação das mulheres na Astronomia brasileira, cujos resultados principais discorro a seguir. A situação das astrônomas, baseada nos dados dos sócios da SAB coletados no final de 2004, é comparada com a das físicas brasileiras e também com as nossas colegas americanas. Os dados identificam ainda uma maior evasão da carreira por parte das mulheres do que os homens. Alguns dos possíveis motivos da evasão são discutidos, como o desejo de constituir família e/ou isolamento. Resultados um tanto preocupantes com relação à distribuição de bolsas de produtividade do CNPq também são apresentados. As principais discussões e estratégias recomendadas nesse congresso são mencionadas de forma resumida ao final.

Silva, Adriana V. R.

2007-07-01

338

Teoria da Medida e outras contribuic~oes  

E-print Network

Teoria da Medida e outras contribui¸c~oes CHAIM SAMUEL H ¨ ONIG H ' a uma dificuldade natural para particular nas contribui¸c~oes de von Neumann ` a Teoria da Medida e a alguns t'opicos da An'alise. Suas poucos anos, os problemas fundamentais da Teoria da Integra¸c~ao que estavam em aberto: problemas de s

Kohayakawa, Yoshiharu

339

PanDA Pilot Submission using Condor-G: Experience and Improvements  

NASA Astrophysics Data System (ADS)

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.

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

2011-12-01

340

Brain dopaminergic system changes in drug addiction: a review of positron emission tomography findings.  

PubMed

Dopamine (DA) is considered crucial for the rewarding effects of drugs of abuse, but its role in addiction remains unclear. Positron emission tomography (PET) is the first technology used for in vivo measurement of components of the dopaminergic system in the human brain. In this article, we review the major findings from PET imaging studies on the involvement of DA in drug addiction, including presynaptic DA synthesis, vesicular monoamine transporter 2, the DA transporter, and postsynaptic DA receptors. These results have corroborated the role of DA in addiction and increased the understanding of its underlying mechanisms. PMID:25260796

Hou, Haifeng; Wang, Chunyan; Jia, Shaowei; Hu, Shu; Tian, Mei

2014-10-01

341

Effects of Prolactin and Ergot Alkaloids on the Tubero-Infundibular Dopamine (DA) Neurons  

Microsoft Academic Search

Using the Falck-Hillarp fluorescence technique, the effect of various hypophyseal hormones on the rate of depletion of catecholamines (CA) from certain central neuron systems was investigated in the rat, after inhibition of CA synthesis. Prolactin, but not LH, FSH, ACTH, or vasopressin, caused a dose-dependent increase in the turnover of dopamine (DA) in nerve terminals of the external layer of

T. Hökfelt; K. Fuxe

1972-01-01

342

A history of eye gaze tracking Abdallahi Ould Mohamed Matthieu Perreira Da Silva  

E-print Network

A history of eye gaze tracking Abdallahi Ould Mohamed Matthieu Perreira Da Silva Vincent Courboulay December 18, 2007 hal-00215967,version1-24Jan2008 #12;Abstract Applications that use eye and gaze have a his- torical review of eye tracker systems and applications. We address the use of gaze tracking

Paris-Sud XI, Université de

343

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

ERIC Educational Resources Information Center

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…

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

344

PHOTOSYSTEM 11-ASSOCIATED PROTEIN KINASE PHOSPHORYLATES A NOVEL 6.3 kDa PROTEIN WHICH  

E-print Network

PHOTOSYSTEM 11-ASSOCIATED PROTEIN KINASE PHOSPHORYLATES A NOVEL 6.3 kDa PROTEIN WHICH SUBSEQUENTLY Laboratory, Upton, NY 11973, USA. Key words: auxiliary enzymes, kinases, protein-protein interactions presence of multiple protein kinases in this system is mounting. Phosphorylation appears to be redox

Allen, John F.

345

ACCURACY AND RELIABILITY OF CEMS AT SUBPART DA (ELECTRIC UTILITIES) FACILITIES  

EPA Science Inventory

EPA promulgated minimum quality assurance (QA) requirements for Continuous Emission Monitoring Systems (CEMS) in 40 CFR Part 60 Appendix F. ppendix F requires Da source owners to develop site-specific QA plans and report the results of EPA specified QA activities each calendar qu...

346

Virtual reality surgical simulators- a prerequisite for robotic surgery.  

PubMed

The field of computer assisted minimally invasive surgery is rapidly expanding worldwide, including in India. With more hospitals in India contemplating the acquisition of a robotic platform, training of robotic surgeons is becoming essential. Virtual reality simulators can be used for surgeons to become acquainted with the robotic console prior to live surgery. Our aim was to evaluate the amount of simulator training required before a surgeon first operates on the da Vinci® Surgical System. Simulations were conducted on the Intuitive Surgical's da Vinci® Robot Skill Simulator using the software obtained from Mimic Technologies. Participants included attending staff surgeons experienced in robotic surgery and novices. A set of seven activities were chosen for each participant. Based on the mean exercise score from the first attempt, staff surgeons outperformed the novices in all exercises. However, the difference in score between the staff and the novices decreased after the participants repeated the exercises and by the sixth attempt most of the novices obtained similar scores to the staff, suggesting that this might be at present the minimum set of repetitions indicated (or required) prior to performing life robotic surgery. PMID:25114465

Rajanbabu, Anupama; Drudi, Laura; Lau, Susie; Press, Joshua Z; Gotlieb, Walter H

2014-06-01

347

Single-site robotic surgery in gynecologic cancer: a pilot study  

PubMed Central

Objective To discuss the feasibility of single-site robotic surgery for benign gynecologic tumors and early stage gynecologic cancers. Methods In this single institution, prospective analysis, we analyzed six patients who had undergone single-site robotic surgery between December 2013 and August 2014. Surgery was performed using the da Vinci Si Surgical System. Patient characteristics and surgical outcomes were analyzed. Results Single-site robotic surgery was performed successfully in all six cases. The median patient age was 48 years, and the median body mass index was 25.5 kg/m2 (range, 22 to 33 kg/m2). The median total operative time was 211 minutes, and the median duration of intracorporeal vaginal cuff suturing was 32 minutes (range, 22 to 47 minutes). The median duration of pelvic lymph node dissection was 31 minutes on one side and 27 minutes on the other side. Patients' postoperative courses were uneventful. The median postoperative hospital stay was 4 days. No postoperative complications occurred. Conclusion When used to treat benign gynecologic tumors and early stage gynecologic cancers, the single-site da Vinci robotic surgery is feasible, safe, and produces favorable surgical outcomes. PMID:25609162

Yoo, Ha-Na; Lee, Yoo-Young; Choi, Chel Hun; Lee, Jeong-Won; Bae, Duk-Soo; Kim, Byoung-Gie

2015-01-01

348

Transoral robotic-assisted skull base surgery to approach the sella turcica: cadaveric study.  

PubMed

Transoral robotic surgery (TORS) offers new possibilities that have not been experimented in the field of minimally invasive skull base neurosurgery. We propose to evaluate the feasibility of transoral approach to the sella turcica with the da Vinci system on cadavers. We performed four robot-assisted dissections on human fresh cadavers in order to reach the pituitary fossa by the oral cavity. Cavum mucosa dissection was performed by the head and neck surgeon at the console and then the sphenoid was drilled by the neurosurgeon at the bedside, with intraoperative fluoroscopy and a "double surgeon" control. Mucosa closure was attempted with robotic arms. We succeeded in performing a sellar opening in all cadavers with a minimally invasive approach, as the hard palate was never drilled. The video endoscope offered a large view inside the sphenoidal sinus, as observed in transnasal endoscopy, but with 3D visualization. The camera arm could be inserted into the sphenoidal sinus, and instrument arms in the pituitary fossa. Operative time to reach the pituitary fossa was approximately 60 min in all procedures: 20 min of initial setup, 10 min of mucosal dissection, and 30 min of sphenoid surgery. New anatomical landmarks were defined. Advantages and pitfalls of such an unpublished technique were discussed. This is the first cadaveric study reported da Vinci robotic transoral approach to the sella turcica with a minimally invasive procedure. This innovative technique may modify the usual pituitary adenoma removal as the sella is approached infero-superiorly. PMID:24848406

Chauvet, Dorian; Missistrano, Antoine; Hivelin, Mikaël; Carpentier, Alexandre; Cornu, Philippe; Hans, Stéphane

2014-10-01

349

Comprehensive catecholaminergic projectome analysis reveals single-neuron integration of zebrafish ascending and descending dopaminergic systems  

PubMed Central

Essential components of animal behaviour are modulated by dopaminergic (DA) and noradrenergic circuitry. In this study, we reveal at cellular resolution the complete set of projections ('projectome') of every single type of DA and noradrenergio neurons in the central nervous system of zebrafish larvae. The most extensive DA projections are established by posterior tubercular otp-dependent neurons, with individual somata integrating the ascending DA system, the descending diencephalospinal, as well as the endohypothalamic circuitry. These findings suggest a major role in the modulation of physiology and behaviour for otp-dependent DA neurons, which correlate with the mammalian A11 group. We further identified an endogenous subpallial DA system that not only provides most of the local DA projections, but also connects to the ventral diencephalon. The catecholaminergic projectome map provides a framework to understand the evolution and function of these neuromodulatory systems. PMID:21266970

Tay, Tuan Leng; Ronneberger, Olaf; Ryu, Soojin; Nitschke, Roland; Driever, Wolfgang

2011-01-01

350

FRAGMENTOS DO PENSAMENTO DIALÉTICO NA HISTÓRIA DA CONSTRUÇÃO DAS CIÊNCIAS DA NATUREZA  

Microsoft Academic Search

Resumo: Este trabalho tem por objetivo identificar uma possível inclinação das ciências naturais em direção ao materialismo dialético. Para tanto, procura-se apresentar a história da dialética a partir da discussão racionalismo\\/empirismo moderno e seus desdobramentos até as tendências dialéticos contem- porâneas. Os autores discutidos são Kant, Hegel, Marx, Engels, Lenin, Horkheimer, Marcuse, Habermas, Bachelard e suas escolas epistemológicas, completadas por

Antônio Fernandes; Nascimento Júnior

351

Avaliação da eficácia e tolerabilidade da vigabatrina na síndrome de West  

Microsoft Academic Search

RESUMO - A síndrome de West (SW) é uma epilepsia grave específica da infância, que se caracteriza pela tríade: espasmos em salvas, deterioração ou atraso neuropsicomotor e hipsarritmia ao eletre n c e f a l o g r a m a . O b j e t i v o:Avaliar a eficácia e segurança da vigabatrina (VGB) no tratamento

Maria Helena P. Moraes; Maria Augusta Montenegro; Renata C. Franzon; José O. Ávila; Marilisa M. Guerreiro

2005-01-01

352

A produção de sentidos no jornalismo: da teoria da enunciação a enunciação jornalística  

Microsoft Academic Search

RESUMO: Este trabalho tem como objetivo fazer uma discussão teórica do jornalismo não como um simples repr odutor do real, mas com o um a atividad e que diariamente contribui para a construção social d a realidade . Acreditamo s que a concepção do jorna lismo como um espelho da realidade desconhece a dimensão s imbólica da atividade . Ne

Alfredo Vizeu

353

INFLUÊNCIA DA DESIDRATAÇÃO NA RECUPERAÇÃO DA FIRMEZA E NA BROTAÇÃO EM CENOURA(1)  

Microsoft Academic Search

RESUMO Raízes de cenoura Daucus Carota L. Brasília recém-colhidas foram submetidas a diferentes níveis de desidratação com emprego de ventilação forçada a 25 ± 2 °C. Sob teores relativos de água inferiores a0 ,95 af irmeza dependente da pressão celular, medida com at écnica da aplanação, ficou reduzida a praticamente zero, ao passo que as raízes do tratamento controle tiveram

ADONAI GIMENEZ CALBO

354

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

ERIC Educational Resources Information Center

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…

Srinivasan, Satish Mahadevan

2010-01-01

355

69-kDa and 100-kDa isoforms of interferon-induced (2'-5')oligoadenylate synthetase exhibit differential catalytic parameters.  

PubMed

The (2'-5')oligoadenylate synthetase represents a family of interferon-induced proteins which when activated by double-stranded (ds)RNA polymerizes ATP into 2'-5'-linked oligomers with the general formula pppA(2'p5'A)n, where n > 1, which for convenience are referred to as 2-5A. We studied here the influence of pH, dsRNA concentration and time on oligomeric composition of 2-5A synthesized by purified 69-kDa and 100-kDa isoforms of (2'-5')oligo(adenylate) synthetase. In optimal conditions for activity, the 69-kDa form synthesized higher oligomers of 2-5A molecules whereas the 100 kDa form synthesized preferentially dimeric molecules, which are known not to be functional for the activation of RNase L. This difference does not reflect a differential affinity of the enzymes for the preformed 2-5A dimer, which is found to be a very poor substrate for both enzymes. This latter strongly suggests that the mechanism of elongation is more likely processive. Moreover, we show that both isoforms have efficient nucleotidyl-transferase activity and provide evidence that, in optimized conditions, GTP can be used alone as substrate by these enzymes to generate pppG2'p5'G. Our results clearly demonstrate that the 69-kDa and 100-kDa forms of (2'-5')oligoadenylate synthetase manifest various differential catalytic activities, and favor the hypothesis that these enzymes might have other functions in the cell besides those in the 2-5A system. PMID:9346316

Marié, I; Blanco, J; Rebouillat, D; Hovanessian, A G

1997-09-01

356

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...

357

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...

358

Mycobacterium tuberculosis 38kDa antigen and its encoding gene-experience in diagnostic applications.  

PubMed

Our experience has revealed that the detection of 38 kDa antigen or antibody to the antigen in various fluids is useful in diagnosis of various mainfestations of tuberculosis. The PCR developed for 340bp sequence of its encoding gene also shows a high degree of sensitivity and specificity. Thus the 38 kDa antigen/antibody combination or the PCR are ideal for development of kits for diagnosis. These immunoassays to be successful, isolation of the 38 kDa antigen in large quantities is essential. Using recombinant DNA technology and expression inE. coli this has been achieved. However, such recombinant antigen does not have the same immunological properties as the native antigen and hence not suitable in immunodiagnosis. To fully realise the potential of the MoAb defined antigens such as the 38 kDa antigen, 19 kDa antigen and others it is essential to devise alternative vector-host systems that help in glycosylation, do not accumulate as inclusion bodies and can be isolated with less damage. PMID:23100905

Kadival, G V; D'souza, C D; Kameswaran, M; Samuel, A M

1997-12-01

359

Resolvendo a equação de Schrödinger através da substituição direta da série de potências  

E-print Network

This work presents a direct and highly accurate method to solve ordinary differential equations, in particular the Schr\\"odinger equation in one dimension, through the direct substitution of a power series solution to obtain a purely algebraical system containing the recurrence relations among the series coefficients. With these recurrence relations at hand it is possible to build an extremely simple routine using only basic arithmetic operations to find solutions of very high accuracy at a very low cost of machine resources. For the Schr\\"odinger equation the energy eigenvalues may be estimated by a very simple method, an this estimate may be easily refined using the recurrence relations until the specified tolerance has been reached, which allows one to find high accuracy wavefunctions even for states with very high quantum numbers. ----- Este trabalho apresenta um m\\'etodo direto e de alta acur\\'acia para resolver equa\\c{c}\\~oes diferenciais ordin\\'arias, em particular a equa\\c{c}\\~ao de Schr\\"odinger em uma dimens\\~ao, atrav\\'es da substitui\\c{c}\\~ao direta de uma solu\\c{c}\\~ao em s\\'erie de pot\\^encias para obter um sistema puramente alg\\'ebrico contendo as rela\\c{c}\\~oes de recorr\\^encia entre os coeficientes da s\\'erie. De posse dessas rela\\c{c}\\~oes de recorr\\^encia \\'e poss\\'ivel construir uma rotina extremamente simples, usando somente opera\\c{c}\\~oes aritm\\'eticas b\\'asicas, para encontrar solu\\c{c}\\~oes de alt\\'issima acur\\'acia a um custo muito reduzido de recursos de m\\'aquina. Para a equa\\c{c}\\~ao de Schr\\"odinger, os autovalores de energia podem ser estimados por um m\\'etodo simples, e a estimativa pode ser facilmente refinada com o uso das rela\\c{c}\\~oes de recorr\\^encia at\\'e que se alcance a toler\\^ancia especificada, o que permite encontrar fun\\c{c}\\~oes de onda de alta acur\\'acia mesmo para estados com n\\'umero qu\\^antico alto.

Fabio E. R. Campolim

2014-09-24

360

The extended amygdala and the dopamine system: another piece of the dopamine puzzle.  

PubMed

The dopamine (DA) system 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 that 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 discuss 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

Fudge, Julie L; Emiliano, Ana B

2003-01-01

361

DA?NE Upgrade Status  

Microsoft Academic Search

The DAPhiNE Phi-factory at INFN-LNF has been upgraded in the second half of 2007 with the scope of testing a recently proposed scheme of crab waist collisions. New vacuum chambers and permanent quadrupole magnets have been designed, fabricated and installed to realize the new configuration. The ring injection systems have been also modified with the installation of new stripline fast

David Alesini; Maria Enrica Biagini; Caterina Biscari; Roberto Boni; Manuela Boscolo; Fabio Bossi; Bruno Buonomo; Alberto Clozza; Giovanni Delle Monache; Theo Demma; Enrico Di Pasquale; Giampiero Di Pirro; Alessandro Drago; Alessandro Gallo; Andrea Ghigo; Susanna Guiducci; Carlo Ligi; Fabio Marcellini; Giovanni Mazzitelli; Catia Milardi; Fabrizio Murtas; Luigi Pellegrino; Miro Preger; Lina Quintieri; Pantaleo Raimondi; Ruggero Ricci; Ugo Rotundo; Claudio Sanelli; Mario Serio; Francesco Sgamma; Bruno Spataro; Alessandro Stecchi; Angelo Stella; Sandro Tomassini; Cristina Vaccarezza; Mikhail Zobov; Ivan Koop; Evgeny Levichev; Pavel Piminov; Dmitry Shatilov; Victor Smaluk; Simona Bettoni; Marco Schioppa; Paolo Valente; Kazuhito Ohmi; Nicolas Arnaud; Dominique Breton; Patrick Roudeau; Achille Stocchi; Alessandro Variola; Benoit Francis Viaud; Marco Esposito; Eugenio Paoloni; Paolo Branchini

2008-01-01

362

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

SciTech Connect

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.

Culotta, E.

1993-02-12

363

Library of Congress Cataloging-in-Publication Data  

E-print Network

p. cm. Includes bibliographical references. Summary: Presents a biography of this prolific artist and inventor through projects in cartography, animal art, bird observation, and mask making. 1. Leonardo, da Vinci, 1452–1519—Juvenile literature. 2. Artists—Italy—Biography—Juvenile literature. 3. Creative activities and seat work—Juvenile literature. [1. Leonardo, da

Janis Herbert; Herbert Janis

364

Characterization of G×E Interactions on Yield and Quality of Muskmelon (Cucumis melo L.)  

E-print Network

and ‘Da Vinci’ (reticulatus type) the reduction in yield was 24% and 30%, respectively in 2012. No adverse impact of DI was observed on fruit quality. Further, DI enhanced root length intensity (L_(a); cm?cm^(-2)) in cv. Mission, maintained it in cv. Da...

Sharma, Sat Pal

2014-07-13

365

Universit degli Studi di Palermo, Facolt di Scienze della Formazione Dottorato in Psicologia  

E-print Network

l'allievo impara molto più di quello che il maestro gli offre" Leonardo da Vinci (1452-1519) #12;- 3 apprendimento. La letteratura che sinora si è interessata all'argomento, ha ormai da tempo messo in luce la

Spagnolo, Filippo

366

"Dentro l'Ultima Cena il tredicesimo testimone" LEONARDO a Vigevano  

E-print Network

di Leonardo da Vinci. Durante l'itinerario che, a tratti, evoca l'ambiente del set cinematografico testimone" un'opportunità inedita per scoprire da vicino il più grande capolavoro di Leonardo, grazie ad unMOSTRA "Dentro l'Ultima Cena ­ il tredicesimo testimone" LEONARDO a Vigevano Al Castello di

De Cindio, Fiorella

367

Children's Literature (Non-Fiction) About or by Famous Artists  

E-print Network

: Roaring Brook Press. Herbert, J. (1998). Leonardo da Vinci for kids : His life and ideas : 21 activies (1. (1995). Good day, mister Gauguin. New York: Chelsea House. Pinguilly, Y., & Leonardo, d. V. (1993). Da; Maxwell Macmillan International. Galli, L., & Leonardo, d. V. (1996). Mona Lisa : The secret of the smile

MacMillan, Andrew

368

ISSN 0103-9741 Monografias em Cincia da Computao  

E-print Network

Tecnologia da Presidência da República Federativa do Brasil #12;#12;In charge for publications Rosane Teles is an interactive performance art form, wherein the teller adjusts the vocalization, wording, physical movements

Endler, Markus

369

CURSO DE MUSICALIZAÇÃO PARA BEBÊS DA UFBA  

Microsoft Academic Search

RESUMO: Considerando a importância da Educação Musical na primeira infância e os benefícios que esta pode trazer, este artigo tem o intuito de descrever e analisar os resultados do primeiro semestre do curso de musicalização para bebês na UFBA, que teve início em setembro de 2006, contemplando crianças com idades entre 0 e 4 anos, acompanhadas de seus responsáveis. Para

Angelita Maria Vander Broock

370

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Nutrição e Alimentos, ou Nutrição Humana, ou Tecnologia de Alimentos, ou Engenharia de Alimentos, Ciência de Alimentos, obtidos na forma da lei. Tipos de Provas: Escrita (classificatória e eliminatória

Paraná, Universidade Federal do

371

Ministrio da Educao Universidade Federal do Paran  

E-print Network

DO CPF NOME SEXO DATA DE NASCIMENTO GRUPO SANG�ÍNEO FATOR RH / / A B AB O + - NOME DO PAI NOME DA M�E �RG�O EMISSOR U. F. DADOS DO C�NJUGE CPF NOME NACIONALIDADE CIDADE DE NASCIMENTO DATA NASCIMENTO U. F

Paraná, Universidade Federal do

372

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

PESSOAIS DO SERVIDOR NOME MATRÍCULA SIAPE CPF CARGO FUN��O INSTITUI��O MEC ­ UNIVERSIDADE FEDERAL DO PARANÁ e às respectivas retificações entregues à Secretaria da Receita Federal do Brasil. LOCAL DATA

Paraná, Universidade Federal do

373

ASPECTOS DA CORTESIA VERBAL NO DISCURSO INFANTIL  

Microsoft Academic Search

RESUMO . Neste trabalho, refletiremos sobre a questão da cortesia verbal (ou polidez linguística) no discurso infantil, inspirando-nos nos estudos de Brown e Levinson (1987), que retomam e ampliam a conceituação de face proposta por Goffman (1970). Para o sociólogo americano, a face pode ser entendida como o valor social positivo que uma pessoa reivindica para si. Assim, Brown e

Giovanna Wrubel Brants

374

Procura de Vida Fora da Terra  

E-print Network

Biological Entities") #12;O desenvolvimento e teste de teorias sobre a vida extraterrestre é conhecido como combustível celular (energia química) fotosíntese converter luz em energia! elementos estruturais (Ex, com inteligência superior à nossa. Várias teorias tem sido propostas para as bases da vida

dos Santos, C.A.

375

UNIVERSIDADE FEDERAL DO PARAN -SETOR DE CINCIAS DA SADE SIBI -BIBLIOTECA DE CINCIAS DA SADE -SD  

E-print Network

, teses, capítulos de livros e livros. Alexandre Alessi et al. Avaliação Laboratorial nas energências. 2009 Capítulo de livro Alexandre Alessi Efeitos da Rosiglitazona em coelhos hipercolesterolêmicos

Paraná, Universidade Federal do

376

40 CFR 60.45Da - Standard for mercury (Hg).  

Code of Federal Regulations, 2011 CFR

... 2011-07-01 false Standard for mercury (Hg). 60.45Da Section 60.45Da...18, 1978 § 60.45Da Standard for mercury (Hg). (a) For each coal-fired...January 30, 2004, any gases that contain mercury (Hg) emissions in excess of each...

2011-07-01

377

A Day in the Life at DaVita Academy  

ERIC Educational Resources Information Center

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…

Weinstein, Margery

2010-01-01

378

APLICAO DA ANLISE EXPLORATRIA PARA AVALIAO DA DIFERENCIAO DE ALIMENTOS PRODUZIDOS  

E-print Network

APLICA��O DA ANÁLISE EXPLORAT�RIA PARA AVALIA��O DA DIFERENCIA��O DE ALIMENTOS PRODUZIDOS orgânica e a expansão do consumo de alimentos assim produzidos. A área cultivada com produtos produzidos. As exportações do setor crescem a taxas de 50% ao ano. Nesse contexto, a indústria de alimentos necessita cada

Ferreira, Márcia M. C.

379

EDITAL 003/POSJOR/2013 RESULTADO DA PRIMEIRA FASE DA SELEO 2013  

E-print Network

FILHO 4. CAMILE CARVALHO NASCIMENTO 5. CLAUDIA DE CONTO 6. DANIELA DE OLIVEIRA SOARES 7. DANIELLE ANTONIO NEIVA 24. S�NIA REGINA DA SILVA 25. TÁSSIA BECKER ALEXANDRE 26. THIAGO AMORIM CAMINADA 27 para a arguição da Terceira Fase: TER�A-FEIRA, DIA 21/05/2013 SALA 141 CLAUDIA DE CONTO Das 14h às 14h

Floeter, Sergio Ricardo

380

Pharmacokinetics of chlorogenic acid and corydaline in DA-9701, a new botanical gastroprokinetic agent, in rats.  

PubMed

1.Few studies describing the pharmacokinetic properties of chlorogenic acid (CA) and corydaline (CRD) which are marker compounds of a new prokinetic botanical agent, DA-9701, have been reported. The aim of the present study is to evaluate the pharmacokinetic properties CA and CRD following intravenous and oral administration of pure CA (1-8?mg/kg) or CRD (1.1-4.5?mg/kg) and their equivalent dose of DA-9701 to rats. 2.? Dose-proportional AUC and dose-independent clearance (10.3-12.1?ml/min/kg) of CA were observed following its administration. Oral administration of CA as DA-9701 did not influence the oral pharmacokinetic parameters of CA. Incomplete absorption of CA, its decomposition in the gastrointestinal tract, and/or pre-systemic metabolism resulted in extremely low oral bioavailability (F) of CA (0.478-0.899%). 3.? CRD showed greater dose-normalized AUC in the higher dose group than that in lower dose group(s) after its administration due to saturation of its metabolism via decreased non-renal clearance (by 51.3%) and first-pass extraction. As a result, the F of CRD following 4.5?mg/kg oral CRD (21.1%) was considerably greater than those of the lower dose groups (9.10 and 13.8%). However, oral administration of CRD as DA-9701 showed linear pharmacokinetics as a result of increased AUC and F in lower-dose groups (by 182% and 78.5%, respectively) compared to those of pure CRD. The greater oral AUC of CRD for DA-9701 than for pure CRD could be due to decreased hepatic and/or GI first-pass extraction of CRD by other components in DA-9701. PMID:24417753

Jung, Ji Won; Kim, Ju Myung; Jeong, Jin Seok; Son, Miwon; Lee, Hye Suk; Lee, Myung Gull; Kang, Hee Eun

2014-07-01

381

Development of an Integrated Distribution Management System  

Microsoft Academic Search

This final report details the components, functionality, costs, schedule and benefits of developing an Integrated Distribution Management System (IDMS) for power distribution system operation. The Distribution Automation (DA) and Supervisory Control and Data Acquisition (SCADA) systems used by electric power companies to manage the distribution of electric power to retail energy consumers are vital components of the Nations critical infrastructure.

Schatz; Joe E

2010-01-01

382

[Haptic tracking control for minimally invasive robotic surgery].  

PubMed

Haptic feedback plays a significant role in minimally invasive robotic surgery (MIRS). A major deficiency of the current MIRS is the lack of haptic perception for the surgeon, including the commercially available robot da Vinci surgical system. In this paper, a dynamics model of a haptic robot is established based on Newton-Euler method. Because it took some period of time in exact dynamics solution, we used a digital PID arithmetic dependent on robot dynamics to ensure real-time bilateral control, and it could improve tracking precision and real-time control efficiency. To prove the proposed method, an experimental system in which two Novint Falcon haptic devices acting as master-slave system has been developed. Simulations and experiments showed proposed methods could give instrument force feedbacks to operator, and bilateral control strategy is an effective method to master-slave MIRS. The proposed methods could be used to tele-robotic system. PMID:22826928

Xu, Zhaohong; Song, Chengli; Wu, Wenwu

2012-06-01

383

Identification of a 45-kDa protein at the protein import site of the yeast mitochondrial inner membrane.  

PubMed Central

Import of proteins into mitochondria involves the cooperation of protein translocation systems in the outer and inner membranes. We have identified a 45-kDa protein at the protein import site of the yeast mitochondrial inner membrane. This 45-kDa protein could be crosslinked to a partly translocated precursor, which cannot be imported across the inner membrane when the matrix is depleted of ATP. In addition, an antibody against this protein strongly inhibited protein import into right-side-out inner-membrane vesicles. The 45-kDa protein accounts for only 0.1% of mitochondrial protein and appears peripherally attached to the outer face of the inner membrane. The properties of this protein suggest that it is a component of the protein import system of the mitochondrial inner membrane. Images PMID:1465421

Scherer, P E; Manning-Krieg, U C; Jenö, P; Schatz, G; Horst, M

1992-01-01

384

MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Enoc Ferreira da Silva E-mail: comercial01@interjet.com.br / contato@interjet.com.br 2 1-Naftol P. Nº referência química CAS 127-09-3, frasco de 1kg ­Marca: Exodo 150 32,00 Rei-Labor Comércio de-4773 Representante: Reinaldo Oliveira Alves E-mail: reilabor@uol.com.br 6 Acetona (aspecto físico líquido límpido

Paraná, Universidade Federal do

385

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Ministério da Educação UNIVERSIDADE FEDERAL DO PARANÁ Pró - Reitoria de Gestão de Pessoas Coordenadoria de Desenvolvimento de Pessoas Unidade de Capacitação de Pessoas SOLICITA��O DE CERTIFICADO DE. Preencher e assinar o formulário. 2. Entregar na CDP/UCAP ­ Unidade de Capacitação de Pessoas ou encaminhar

Paraná, Universidade Federal do

386

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Ministério da Educação UNIVERSIDADE FEDERAL DO PARANÁ Pró-Reitoria de Gestão de Pessoas EDITAL N de trabalho de Dedicação Exclusiva, a seguir discriminado: Pró-Reitoria de Gestão de Pessoas Gabinete.039465/2013-13 Número de vagas: 05 (cinco), sendo 01 (uma) vaga reservada para pessoas portadoras de deficiência

Paraná, Universidade Federal do

387

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Ministério da Educação UNIVERSIDADE FEDERAL DO PARANÁ Pró-Reitoria de Gestão de Pessoas EDITAL N Conhecimento: Ciências Sociais Aplicadas - Administração Matéria Específica: Gestão de Pessoas e Marketing 7,44 Curitiba, 01 de julho de 2014. Adriano do Rosário Ribeiro Pró-Reitor de Gestão de Pessoas #12;

Paraná, Universidade Federal do

388

MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

pesquisa: análise de discurso, métodos qualitativos (etnografia, entrevistas em profundidade, grupos de transição política. Teoria Política I 60 4 Ementa: Textos clássicos fundadores da Ciência Política contemporânea. Confere-se especial atenção às teorias políticas elaboradas por Karl Marx, Max Weber e pelos

Paraná, Universidade Federal do

389

Ministrio da Educao Universidade Federal do Paran  

E-print Network

EVA (coloridos) fita crepe fita dupla face giz de cera giz para lousa e quadro grampeador jogo de alfabeto ilustrado jogo de fantoches de animais (com 10 peças) jogo de fantoches família branca (com 6 peças) jogo de mico de palavras jogo na área da matemática jogos de memória (diversos) jogos

Paraná, Universidade Federal do

390

Discriminant forest classification method and system  

DOEpatents

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.

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

2012-11-06

391

New paleomagnetic constraints on the extrusion of Indochina: Late Cretaceous results from the Song Da terrane, northern Vietnam  

NASA Astrophysics Data System (ADS)

Samples were collected for paleomagnetic investigations from the Upper Cretaceous Yen Chau Formation in the Song Da terrane (21.7°N, 103.9°E) bounded by the Ailao Shan-Red River fault system and Song Ma fault, in an attempt to examine extrusion tectonics of East Asia. Primary nature of the high-temperature (600-690 °C) component of magnetization from 13 sites is supported by a positive fold test. The tectonic corrected data provides the characteristic Late Cretaceous paleomagnetic direction for the Song Da terrane ( D=6.4°, I=32.0° with ?95=8.5°, N=13 sites), corresponding to a paleopole lying at 82.9°N, 220.7°E ( A95=6.9°). Comparison with coeval paleomagnetic poles for the neighboring tectonic blocks indicates no latitudinal translation of the Son Da terrane with respect to the South China Block, whereas the Shan-Thai Block and the southern part of the Indochina Block revealed a southward displacement of 10.5±9.5° in latitude with respect to the Song Da terrane. We conclude that the southeastern segment of the Ailao Shan-Red River fault system to the east of the Dien Bien Phu fault is not a demarcation of the extruded Indochina Peninsula. The Indochina Block extruded probably along some faults between the Song Da terrane and the Khorat Plateau.

Takemoto, Kazuhiro; Halim, Nadir; Otofuji, Yo-ichiro; Van Tri, Tran; Van De, Le; Hada, Shigeki

2005-01-01

392

Control of a human-powered helicopter in hover  

NASA Technical Reports Server (NTRS)

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.

Totah, Joseph J.; Patterson, William

1988-01-01

393

Validation of the Delvotest SP NT DA. Performance Tested Method 011101.  

PubMed

Delvotest SP NT DA is designed to test milk for the presence of antibacterial substances, such as antibiotics. The test is made of an agar gel containing bacterial spores and a color indicator. The milk sample is added onto the agar gel, and the test is incubated at 64 degrees C. The principle of the test is based on the diffusion of possible inhibitory substances that may be present in the milk sample into agar. This reduces growth and acid production by the test organism, and delays or prevents the agar from changing color from purple to yellow. The Delvotest Accelerator is an automated system in which the plates containing the milk to be analyzed are placed for incubation. The Accelerator automatically detects the end of the incubation and reads the results. A sample containing antibiotic will be noted as "positive." A sample without antibiotics or with antibiotics at concentrations below detection level will be noted as "negative." The present report includes all technical details about the Delvotest SP NT DA, and the results of the validation study. The validation study demonstrates that the Delvotest SP NT DA conforms to the product performance claims and confirms the robustness of the test. The Delvotest SP NT DA is, therefore, granted Performance Tested Method certification. PMID:22468368

Hennart, Stephen L A; Faragher, John

2012-01-01

394

Fully digital controlled A.C. servo engraving machine based on DEC4DA  

NASA Astrophysics Data System (ADS)

A novel engraving machine (NUT-1A) is presented, in which fully digital controlled AC system based on DEC4DA was used to improve the machining precision and sensitivity. This engraving machine was constructed around AC servo motor with encoder, controlled by a servo motor control card - DEC4DA. As the upper unit of AC servo motor, DEC4DA was a numerical control generator, which received pulses form CPU by ISA bus, and these pulses were amplified and converted to drive AC servo actuator. This novel engraving machine can achieve a higher positioning accuracy of +/-0.01mm and positioning repetition of +/-0.005mm, and its resolution is 0.001mm/0.0001mm. Moreover, because of multi-closed loops were used in the system, the steady and transient performances are more excellent. This system ensures a much quicker current regulation in closed-loop operation, of acceleration and braking in both directions, as well as stable speed characteristics. Amplifier boards are protected against excessive current, excessive temperature and short circuiting of the motor supply cables.

Shu, Zhibing; Chen, Xianfeng; Zhang, Hairong; Huang, Yiqun; Yan, Caizhong

2005-12-01

395

Modulation of viral replication in macrophages persistently infected with the DA strain of Theiler's murine encephalomyelitis virus  

Microsoft Academic Search

BACKGROUND: Demyelinating strains of Theiler's murine encephalomyelitis virus (TMEV) such as the DA strain are the causative agents of a persistent infection that induce a multiple sclerosis-like disease in the central nervous system of susceptible mice. Viral persistence, mainly associated with macrophages, is considered to be an important disease determinant that leads to chronic inflammation, demyelination and autoimmunity. In a

Stephane Steurbaut; Ellen Merckx; Bart Rombaut; Raf Vrijsen

2008-01-01

396

Qual o Papel da Escola e da Mídia na Obtenção dos Conhecimentos Astronômicos?  

NASA Astrophysics Data System (ADS)

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.

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

2007-08-01

397

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)

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.

Zobaer, M. S.; Roy, N.; Mamun, A. A.

2014-03-01

398

The immune response to 52-kDa Ro and 60-kDa Ro is linked in experimental autoimmunity.  

PubMed

Clustering of autoantibody specificities is a consistent finding in patients with systemic autoimmune diseases. Patients with Sjögren's syndrome frequently have autoantibodies to La, 60-kDa Ro(SS-A) protein (Ro60), and 52-kDa Ro(SS-A) protein (Ro52). In the case of anti-Ro60 and anti-La, there is evidence that these specificities occur together because of the physical association of the Ro60 and La proteins that form a ribonucleoprotein particle (RNP). Thus, the autoantibody response may spread from a single epitope to involve new epitopes located within other components of the RNP. The physical association of Ro52 with the Ro/La RNP has remained controversial, implying that Abs to Ro52 are not a consequence of intermolecular spreading and may be triggered independently of the anti-Ro60 response. To examine this relationship of the immune response to Ro52 and Ro60, mice were immunized with recombinant Ro52, Ro60, or La, and examined for autoantibody production. Immunization with Ro52 resulted in rapid, high titer Ab production to Ro52, followed 7 to 14 days later by lower titer autoantibody production to Ro60. Immunization with Ro60 led to anti-Ro60, which was also followed 7 to 14 days later by a lower titer anti-Ro52 response. Cross-reactivity of affinity-purified Abs from immune mouse sera was not observed. These observations suggest that the autoimmune responses to Ro60 and Ro52 are linked intrinsically, despite previous evidence suggesting they are not associated in vivo. The mechanism of linkage remains unclear, but the data are most consistent with some physical association of Ro52 and Ro60 allowing autoimmunization, presumably as a result of normal cell turnover or specific injury in vivo. PMID:8871672

Keech, C L; Gordon, T P; McCluskey, J

1996-10-15

399

Brasil Venezuela: paradiplomacia na integração econômica da área de fronteira.  

E-print Network

??Mediante a pesquisa empreendida, buscou-se estudar aspectos da globalização, integração regional e, em especial, as relações internacionais existentes entre governos não centrais, envolvendo Brasil e… (more)

Almir Morais Sá

2009-01-01

400

MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

refrigerante não deve conter CFC. Silencioso. Tensão 110/127 volts. Marca: Libell- Modelo: Pressbabyinox 100 R Cesar da Silva E-mail: loesch@loesch.com.br 2 Bebedouro de pressão conjugado - gabinetes em aço inox refrigerante não deve conter CFC. Com depósito de água em aço inox com dreno de limpeza silencioso. Tensão 110/127

Paraná, Universidade Federal do

401

MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

verticais com laminas de 9 cm de largura em PVC liso curve, trilho perfil sólido de alumínio anodizado fosco.820.375/0001-59 4490.52.51 3 Persianas verticais, com laminas de 9 cm de largura em PVC liso, na cor manteiga, com rosário em PVC. Todas devem ter reforço de 3 cm na parte da furação das lâminas. Com visita no local 500m2

Paraná, Universidade Federal do

402

Kinematic analysis of motor performance in robot-assisted surgery: a preliminary study.  

PubMed

The inherent dynamics of the master manipulator of a teleoperated robot-assisted surgery (RAS) system can affect the movements of a human operator, in comparison with free-space movements. To measure the effects of these dynamics on operators with differing levels of surgical expertise, a da Vinci Si system was instrumented with a custom surgeon grip fixture and magnetic pose trackers. We compared users' performance of canonical motor control movements during teleoperation with the manipulator and freehand cursor control, and found significant differences in several aspects of motion, including target acquisition error, movement speed, and acceleration. In addition, there was preliminary evidence for differences between experts and novices. These findings could impact robot design, control, and training methods for RAS. PMID:23400175

Nisky, Ilana; Patil, Sangram; Hsieh, Michael H; Okamura, Allison M

2013-01-01

403

Toward Intraoperative Image-Guided Transoral Robotic Surgery  

PubMed Central

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.

Liu, Wen P.; Reaugamornrat, Sureerat; Deguet, Anton; Sorger, Jonathan M.; Siewerdsen, Jeffrey H.; Richmon, Jeremy; Taylor, Russell H.

2014-01-01

404

DIAGNÓSTICO DE FALHAS EM MÁQUINAS ROTATIVAS ATRAVÉS DA ANÁLISE DA VIBRAÇÃO TORCIONAL  

Microsoft Academic Search

RESUMO Os eixos, quando transmitem torque, agem como molas torcionais, além da flexão. Quando há variação cíclica no torque transmitido podem aparecer vibrações torcionais forçadas, que dependendo das freqüências naturais do sistema poderão causar ressonância, caso em que o eixo poderá oscilar em amplitudes suficientemente elevadas para produzir falhas. O presente trabalho apresenta técnicas de medição e análise de vibração

Evaldo Khater

405

A NATUREZA DA CIÊNCIA E A INSTRUMENTAÇÃO PARA O ENSINO DA FÍSICA  

Microsoft Academic Search

Resumo: O propósito deste artigo é o de examinar as convicções filosóficas que dão suporte aos compor- tamentos de alguns professores de física ao lidarem com o ensino da Física no contexto de um laborató- rio. Entrevistas foram feitas com professores de \\

Alexandre Medeiros; Severino Bezerra Filho

2000-01-01

406

OBTENÇÃO DE WOLASTONITA À PARTIR DA CINZA DA CASCA DO ARROZ  

Microsoft Academic Search

RESUMO A wolastonita sintética (CaSiO3) com elevado grau de pureza tem várias aplicações na indústria e agricultura. A cinza da casca do arroz (CCA), pode se tornar verdadeiramente útil na fabricação de diferentes materiais, já que são produzidos em grandes quantidades no país. A alta concentração de sílica na CCA (cerca de 25%) e sua extração com baixo custo e

A. A. Fernandes; E. U. Frajndlich; H. G. Riella

407

Evoluo da Computao de Alto Desempenho na tica da Lista TOP500  

E-print Network

número de processadores, aumentando mais ainda o poder computacional. Veremos a importância da computação computacional, projetar um programa paralelo eficiente. O progresso também deixa a desejar. Conseguimos lidar alta demanda computacional que podem tirar proveito do paralelismo maciço. Criar novos (?) modelos de

Song, Siang Wun

408

Descentralização da Educação Pública no Brasil: Trajetória dos Gastos e das Matrículas  

Microsoft Academic Search

Este trabalho analisa o processo de descentralização da educação pública no Brasil iniciado em meados da década de 1990. O ponto de partida é um resgate histórico da gestão da política educacional brasileira, fortemente ligada às transformações políticas e econômicas da história recente do país. Em seguida, o foco recai sobre o quadro institucional-legal e a estrutura de financiamento e

Jorge Abrahão de Castro; Bruno de Carvalho Duarte

2008-01-01

409

Linguateca: um Centro de Recursos Distribuído para o Processamento Computacional da Língua Portuguesa  

Microsoft Academic Search

Resumo. Neste artigo apresentamos uma panorâmica da actividade da Linguateca na criação e disponibilização de recursos e ferramentas para a língua portuguesa. Começamos por uma descrição dos objectivos e pressupostos da Linguateca e uma breve história da sua intervenção, e finalizamos com algumas considerações sobre a melhor forma de prosseguir na organização da área.

Diana Santos; Alberto Simões; Anabela Barreiro; Belinda Maia; Cristina Mota; Débora Oliveira; Eckhard Bick; Elisabete Ranchhod; José João Dias de Almeida; Luís Cabral; Luís Costa; Luís Sarmento; Marcirio Chaves; Nuno Cardoso; Paulo Rocha; Rachel Aires; Rosário Silva; Rui Vilela; Susana Afonso

2004-01-01

410

Crnica I Encontro Solar na UDC O pasado mrcores 24 de abril tivo lugar na Praza da Fraga (Campus da  

E-print Network

a exposición de aparellos solares instalada na Praza da Fraga, dende cociñas e fornos, ate cargadores para oCrónica I Encontro Solar na UDC O pasado mércores 24 de abril tivo lugar na Praza da Fraga (Campus da Zapateira) a primeira edición do Encontro Solar na UDC. Esta era a terceira das actividades

Fraguela, Basilio B.

411

Robotic-Assisted Minimally Invasive Surgery for Gynecologic and Urologic Oncology  

PubMed Central

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

2010-01-01

412

Effects of thyroid hormone on the renal dopaminergic system.  

PubMed

This study determined the effects of thyroid hormone on the renal dopaminergic system. Surgical thyroidectomy (Tx) and treatment with 2-thiouracil (Thio) decreased renal cortex Na+/K+ ATPase activity and urinary volume. Tx also decreased urinary Na+ and urinary L-DOPA without changing urinary excretion of Dopamine (DA). Thio treatment decreased slightly urinary L-DOPA and Na+, but increased urinary excretion of DA. In both models of thyroid hormone deficiency, the ratio urinary DA/DOPA increased. Changes after Thio treatment were reversed after one month of drug withdrawal. Treatment with T3 via osmotic minipump increased Na+/K+ ATPase activity and urinary L-DOPA, did not change urinary DA, and increased the ratio DA/DOPA. To further analyze the effects of thyroid hormone deficiency, we administered selective DA1 (SCH-23390), DA2 (Sulpiride), and a non selective (Haloperidol) DA receptor antagonists to Thio treated and control animals. The DA1 antagonist decreased diuresis, natriuresis and urinary L-DOPA in control, but had no effect in Thio treated rats. Sulpiride had no effect in either group. The combination of SCH-23390 plus Sulpiride decreased urinary L-DOPA and urinary volume only in Thio treated animals. Haloperidol decreased urinary volume in Thio treated animals, but had no effect in controls. Our findings suggest that renal DA synthesis is to some extent dependent on thyroid hormone levels, and that the response of DA receptors is altered by thyroid hormone deficiency, indicating a role of this hormone in the regulation of the renal dopaminergic system. PMID:11762703

Del Compare, J A; Aguirre, J A; Ibarra, F R; Barontini, M; Armando, I

2001-08-01

413

O sentido originário da Verdade: Heidegger com Aristóteles 1  

Microsoft Academic Search

O tema da verdade, em Heidegger, é bastante caro para o desenvolvimento de sua filosofia. A crítica contumaz da metafísica empreendida por Heidegger enquanto história do esquecimento do ser somente se tornou possível devido à sua intuição originária com respeito ao problema que a mesma suscita em relação à questão do ser e do sentido que se mostra como. Heidegger

Alexandre Rubenich

2009-01-01

414

DA-6034 Induces [Ca2+]i Increase in Epithelial Cells  

PubMed Central

DA-6034, a eupatilin derivative of flavonoid, has shown potent effects on the protection of gastric mucosa and induced the increases in fluid and glycoprotein secretion in human and rat corneal and conjunctival cells, suggesting that it might be considered as a drug for the treatment of dry eye. However, whether DA-6034 induces Ca2+ signaling and its underlying mechanism in epithelial cells are not known. In the present study, we investigated the mechanism for actions of DA-6034 in Ca2+ signaling pathways of the epithelial cells (conjunctival and corneal cells) from human donor eyes and mouse salivary gland epithelial cells. DA-6034 activated Ca2+-activated Cl- channels (CaCCs) and increased intracellular calcium concentrations ([Ca2+]i) in primary cultured human conjunctival cells. DA-6034 also increased [Ca2+]i in mouse salivary gland cells and human corneal epithelial cells. [Ca2+]i increase of DA-6034 was dependent on the Ca2+ entry from extracellular and Ca2+ release from internal Ca2+ stores. Interestingly, these effects of DA-6034 were related to ryanodine receptors (RyRs) but not phospholipase C/inositol 1,4,5-triphosphate (IP3) pathway and lysosomal Ca2+ stores. These results suggest that DA-6034 induces Ca2+ signaling via extracellular Ca2+ entry and RyRs-sensitive Ca2+ release from internal Ca2+ stores in epithelial cells. PMID:24757369

Yang, Yu-Mi; Park, Soonhong; Ji, HyeWon; Kim, Tae-im; Kim, Eung Kweon; Kang, Kyung Koo

2014-01-01

415

Dilemas Teóricos no Processo de Construção da Cultura Organizacional  

Microsoft Academic Search

Resumo Considerada uma das problemáticas mais estudadas no domínio da sociologia das organizações, a cultura organizacional padece, contudo, de um déficit de reflexão sobre as suas raízes teórico-disciplinares. Apesar de várias investidas na análise da sua génese e evolução histórica, não se conhecem estudos focalizados na abordagem das condições de produção desta problemática e no debate sobre os sentidos teóricos

Leonor Lima Torres

416

O aproveitamento da energia eolica (The wind energy resource)  

Microsoft Academic Search

Diversos estudos realizados nosultimos anos tem apontado as implicacoes e impactos socio-ambientais do consumo de energia. As fontes renovaveis de energia sao apresentadas como a principal alternativa para atender as demandas da sociedade com relacaoa qualidade e seguranca do atendimento da demanda de eletricidade com a reducao dos danos ambientais decorrentes do consumo de energia. Este artigo apresenta uma revisao

F. R. Martins; R. A. Guarnieri; E. B. Pereira

417

Is it turquoise + fuchsia = purple or is it turquoise + fuchsia = blue?  

NASA Astrophysics Data System (ADS)

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.

Beretta, Giordano B.; Moroney, Nathan M.

2011-01-01

418

Berengario da Carpi: a pioneer in neurotraumatology.  

PubMed

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

Di Ieva, Antonio; Gaetani, Paolo; Matula, Christian; Sherif, Camillo; Skopec, Manfred; Tschabitscher, Manfred

2011-05-01

419

Respostas religiosas à aids no Brasil: impressões de pesquisa acerca da Pastoral de DST/Aids da Igreja Católica1  

PubMed Central

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

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

420

Robotic excision of a pre-coccygeal nerve root tumor  

PubMed Central

Pre-coccygeal ganglioneuroma is a rare clinical entity that presents incidentally or with non-specific symptoms. We present a case of a 25 year old housewife who was incidentally diagnosed with pre-coccygeal ganglioneuroma while getting investigated for primary infertility. The patient had no specific complaints except for irregular menstruation which had started 8 months back. Magnetic resonance imaging (MRI) was suggestive of a presacral and pre-coccygeal lesion. Resection of the tumor was done through the anterior approach using the da Vinci Si robotic system. Two robotic arms and one assistant port were used to completely excise the tumor. Robotic excision of such a tumor mass located at a relatively inaccessible area allows enhanced precision and 3-dimentional (3D) view avoiding damage to important surrounding structures. PMID:25598609

Palep, Jaydeep H.; Mistry, Sheetal; Kumar, Abhaya; Munshi, Mihir; Puranik, Meenakshi; Pednekar, Abhinav

2015-01-01

421

[Robot-assisted Mitral Valve Plasty].  

PubMed

In April 2014, Team Watanabe have completed 249 robot-assisted cardiac surgeries. Wide range ofprocedures 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

Ishikawa, Norihiko; Watanabe, Gou

2015-01-01

422

The colour wheels of art, perception, science and physiology  

NASA Astrophysics Data System (ADS)

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.

Harkness, Nick

2006-06-01

423

The importance of being top-heavy: Intrinsic stability of flapping flight  

NASA Astrophysics Data System (ADS)

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.

Ristroph, Leif; Liu, Bin; Zhang, Jun

2011-11-01

424

Science Nation: Surgical Robots  

NSDL National Science Digital Library

The da Vinci Surgical System has two main components. On top of the operating table is a device that has four arms. It looks like a giant insect that hovers right on top of the patient. Those arms are inserted into the patient through small incisions. In the simplest terms, it's really virtual reality crossing paths with surgery. The surgeon views a magnified 3-D high-resolution image of the operative site. The surgeon puts his hands in levers and as his hands move the levers, those levers translate his movements into precise movements by the arms of the robot. The surgeon "sees" and can "feel" movement and force of things like cutting and stitching as he watches it in 3-D.

425

Navigation, robotics, and intraoperative imaging in spinal surgery.  

PubMed

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

Ringel, Florian; Villard, Jimmy; Ryang, Yu-Mi; Meyer, Bernhard

2014-01-01

426

Totally endoscopic coronary artery bypass on the beating heart in Jehovah's Witness and HIV patients: case report.  

PubMed

Minimally invasive direct coronary artery bypass has been widely employed as an approach for revascularization of the left anterior descending coronary artery. Recent advances in minimally invasive cardiac surgery enhanced with technological assistance have meant that these operations are now being performed through smaller incisions. We present 2 cases, both of which emphasize the beneficial role of the DaVinci robotic system in performing bloodless coronary surgery without blood transfusion and in reducing blood contact in instances in which there is a high risk for infection. In the first case, a Jehovah's Witness patient, blood transfusion was not an option; in the second case, a human immunodeficiency virus (HIV)-positive patient, blood contact would have put the staff at risk for HIV infection. PMID:15138099

Casula, Roberto; Athanasiou, Thanos

2004-01-01

427

[Robotic surgery for cancer treatment].  

PubMed

Surgical operation is still one of the important options for treatment of many types of cancer. In the present-day treatment of cancer, patients' quality of life is focused on and surgeons need to provide minimally invasive surgery without decreasing the curability of disease. Endoscopic surgery contributed to the prevalence of minimally -invasive surgery. However it has also raised a problem regarding differences in surgical techniques among individual surgeons. Robot-assisted surgery provides some resolutions with 3D vision and increases the freedom of forceps manipulation. Furthermore, 3D visual magnification, scaling function, and the filtering function of surgical robots may make it possible for surgeons to perform microsurgery more delicate than open surgery. Here, we report the present status and the future of the representative surgical robot, and the da Vinci surgical system. PMID:22241345

Oouchida, Kenoki; Ieiri, Satoshi; Kenmotsu, Hajime; Tomikawa, Morimasa; Hashizume, Makoto

2012-01-01

428

Initial experience of robot-assisted thoracoscopic surgery in China  

PubMed Central

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

Huang, Jia; Luo, Qingquan; Tan, Qiang; Lin, Hao; Qian, Liqiang; Lin, Xu

2014-01-01

429

Robotically assisted totally endoscopic coronary artery bypass surgery  

PubMed Central

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

Canale, Leonardo Secchin; Mick, Stephanie; Mihaljevic, Tomislav; Nair, Ravi

2013-01-01

430

Turbulence  

NASA Astrophysics Data System (ADS)

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.

Frisch, Uriel

1996-01-01

431

Vortex flow in nature and technology  

NASA Astrophysics Data System (ADS)

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.

Lugt, H. J.

432

Robotic Assisted Laparoscopic Sural Nerve Grafting During Radical Prostatectomy: Initial Experience  

Microsoft Academic Search

PurposeSural nerve grafting has been done in select patients undergoing radical prostatectomy with unilateral or bilateral wide excision of the neurovascular bundle in an effort to preserve potency. We describe a novel technique of laparoscopic sural nerve grafting after radical prostatectomy using the da Vinci (Intuitive Surgical, Mountain View, California) robot.

JIHAD H. KAOUK; MIHIR M. DESAI; SIDNEY C. ABREU; FRANCIS PAPAY; INDERBIR S. GILL

2003-01-01

433

Math 163 -Introductory Seminar Lehigh University Spring 2008  

E-print Network

to be aesthetically pleasing. Da Vinci did sketches of the golden ration in relation to the human body is a square and the right side is a smaller rectangle proportional to the original then x is the golden ratio. To see this, note that for the rectangles to be proportional, the ratios of the longer sides

Isaak, Garth

434

On the Developing Role of Physical Models in Engineering Design Education  

ERIC Educational Resources Information Center

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…

Green, Graham; Smrcek, Ladislav

2006-01-01

435

Nucléation, ascension et éclatement d'une bulle de champagne  

Microsoft Academic Search

People have long been fascinated by bubbles and foams dynamics, and since the pioneering work of Leonardo da Vinci in the early 16th century, this subject has generated a huge bibliography. However, only quite recently, much interest was devoted to bubbles in Champagne wines and carbonated beverages. Since the time of the benedictine monk dom Pierre Perignon (1638-1715), champagne is

G. Liger-Belair

2006-01-01

436

Bringing History Alive in the Classroom!  

ERIC Educational Resources Information Center

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…

McRae, Lee, Ed.

1996-01-01

437

The Straightest Story Ever Told  

Microsoft Academic Search

A revisionary understanding of the Passion of Christ lies at the crux of the spiritual cultural work that Dan Brown’s novel The Da Vinci Code (2003) undertakes no less so than in Mel Gibson’s film The Passion of the Christ (2004). Both works, each highly didactic in its own way, look to make a popular intervention into contemporary spirituality, as

Richard Rambuss

2011-01-01

438

The Straightest Story Ever Told  

Microsoft Academic Search

: A revisionary understanding of the Passion of Christ lies at the crux of the spiritual cultural work that Dan Brown’s novel The Da Vinci Code (2003) undertakes no less so than in Mel Gibson’s film The Passion of the Christ (2004). Both works, each highly didactic in its own way, look to make a popular intervention into contemporary spirituality,

Richard Rambuss

2011-01-01

439

Leonardo's Machines  

NSDL National Science Digital Library

This Science NetLinks lesson will highlight some of Leonardo da Vinci's futuristic inventions, introducing the elements of machines. Through the use of student interactives, this lesson provides an interesting context in which students can begin to develop their ideas about the uniqueness of humans in the natural world.

Science Netlinks;

2003-03-05

440

Writing and Drawing in the Naturalist's Journal  

NSDL National Science Digital Library

The mutually reinforcing integration of science and art is clearly seen in the journals and notebooks kept by creative thinkers and explorers since the time of Leonardo da Vinci. The Naturalist's Journal is an effective tool for learning about nature and science and can be an effective teaching strategy.

Dirnberger, Joseph M.; Mccullagh, Steven; Howick, Tom

2005-01-01

441

Postmodern Irony as Subversive Rhetorical Strategy.  

ERIC Educational Resources Information Center

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…

Shugart, Helene A.

1999-01-01

442

The Future Development of the European Union Education, Training and Youth Programmes After 2006: A Public Consultation Document.  

ERIC Educational Resources Information Center

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…

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

443

Speculation and Historical Interpretation for Fifth and Sixth Graders.  

ERIC Educational Resources Information Center

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)

Schneider, Elizabeth; Gregory, Leslie A.

2000-01-01

444

The Xmath Integration Algorithm  

ERIC Educational Resources Information Center

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…

Bringslid, Odd

2009-01-01

445

The Dangers of Art "Appreciation."  

ERIC Educational Resources Information Center

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)

Irvine, Hope

1991-01-01

446

Comparison of Expert-Based and Empirical Evaluation Methodologies in the Case of a CBL Environment: The ''Orestis'' Experience  

ERIC Educational Resources Information Center

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…

Karoulis, Athanasis; Demetriadis, Stavros; Pombortsis, Andreas

2006-01-01

447

Teaching Science: A Picture Perfect Process.  

ERIC Educational Resources Information Center

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)

Leyden, Michael B.

1994-01-01

448

Leonardo's Rule, Self-Similarity, and Wind-Induced Stresses in Trees  

NASA Astrophysics Data System (ADS)

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.

Eloy, Christophe

2011-12-01

449

Artsmarts.  

ERIC Educational Resources Information Center

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)

Greenman, Geri

2000-01-01

450

Kids as Curators: Virtual Art at the Seattle Museum.  

ERIC Educational Resources Information Center

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)

Scanlan, Laura Wolff

2000-01-01

451

Nature Foil Reliefs  

ERIC Educational Resources Information Center

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…

Lane, Shaw J.

2012-01-01

452

Historical Scientific Models and Theories as Resources for Learning and Teaching: The Case of Friction  

ERIC Educational Resources Information Center

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…

Besson, Ugo

2013-01-01

453

The Prelude to the Millennium: The Backstory of Digital Aesthetics  

ERIC Educational Resources Information Center

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,…

Mayo, Sherry

2008-01-01

454

Reflection by Porro Prisms  

NASA Astrophysics Data System (ADS)

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.

Greenslade, Thomas B.

2010-04-01

455

Explorers with a Mission.  

ERIC Educational Resources Information Center

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)

Sweeney, Patricia James

1991-01-01

456

Perception, Cognition, and Visualization.  

ERIC Educational Resources Information Center

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…

Arnheim, Rudolf

1991-01-01

457

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

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…

Saude, S.; Carioca, V.; Siraj-Blatchford, J.; Sheridan, S.; Genov, K.; Nuez, R.

2005-01-01

458

Reach for the Stars: Visions for Literacy Coaching Programs  

ERIC Educational Resources Information Center

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…

DeFord, Diane

2012-01-01

459

Specific Reading Disability in Historically Famous Persons.  

ERIC Educational Resources Information Center

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)

Aaron, P. G.; And Others

1988-01-01

460

78 FR 75944 - Commencement of Claims Program  

Federal Register 2010, 2011, 2012, 2013, 2014

...03-cv-749/Pflug v. Socialist People's Libyan Arab Jamahiriya (D.D.C.) 08-cv-505. December 27, 1985 attack at the Leonardo da Vinci Airport in Rome, Italy, as alleged in Estate of John Buonocore III v. Great Socialist Libyan Arab...

2013-12-13

461

Leonardo's Tree Theory  

NSDL National Science Digital Library

This activity focuses on Leonardo da Vinci's tree theory, which states that the cross-sectional area of a major limb is approximately equal to the cross-sectional areas of its two offshoot limbs. Students test this theory by collecting data from 10 trees and perform the mathematical calculations. In addition to data collection skills, this exercise strengthens problem solving skills.

Werner, Suzanne K.

2003-03-01

462

Creative Tools: Selection and Case-studies  

E-print Network

Creativity 6 Leonardo Da Vinci 7 Christopher Columbus 9 Vincent Van Gogh 12 The Wright Brothers 14 Summation, Gil, JP & Mikkel, the attendants at the Musica Art workshop, and the members of PolyTechnical Fantasy 17 Group Creativity 18 IDEO 18 Chapter II: Models 21 Models for Creativity 21 Wallas & The Art

463

Secret War, Secret Science Brad Osgood  

E-print Network

naval codes. They inform the British who immediately recognize their importance. #12;....The body pressed a policy of "peace without victory" with no success. #12;· Germany sends a secret message war Drawing by Leonardo da Vinci of lancers charging a metal machine #12;The basis of modern war

Osgood, Brad

464

Fundamental approaches to motivation and emotion Scientific method  

E-print Network

: Plato holding the Timaeus (painted as Leonardo da Vinci) ­ 15: Aristotle holding the Ethics ­ 16: Strabo or Zoroaster? ­ 20: Ptolemy ­ R: Raphael as Apelles ­ 21: Il Sodoma as Protogenes. #12;Aristotle and word should be in accord." #12;Mental continuity: Aristotle recognized the presence of continuity

Cooper, Brenton G.

465

The management, use, and stewardship of fresh water  

E-print Network

as the first female faculty member. Her research interests include cultural geography, environmental equityDonald, Professor, specializes in the effects of land use change on runoff and erosion. Research and teaching://welcome.warnercnr.colostate.edu "Water is the driving force of all nature." -Leonardo Da Vinci #12;

466

How Is a Matisse Like a Mondrian?  

ERIC Educational Resources Information Center

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…

Brock, Barbara

1991-01-01

467

Non-realistic digital rendering  

E-print Network

dark ones. [7] Statements of DaVinci 1452-1519: 1. First study science, and then follow with practice based on science. [7] 2. The first requisite of painting is that the bodies which it represents should appear in relief, and that the scenes which...

Ronai, Amanda Sharon

1994-01-01

468

Looking/Learning Drawing: Trees.  

ERIC Educational Resources Information Center

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)

Hurwitz, Al; Blume, Sharon

1985-01-01

469

STRUKTUR KABEL: TEKNOLOGI DAN DESAIN1  

Microsoft Academic Search

Cable as construction material has been known since old Egypt. At that time, cable was made from natural fiber. The sketch from Leonardo da Vinci (1452 - 1519) about bridge utilizing cable to support has been found. Since the late of 1900, cable from steel has been use for long span bridges, and now the architect can use structural cable

Harianto Hardjasaputra

470

Art, Mathematics and Architecture for Humanistic Renaissance: the Platonic Solids  

Microsoft Academic Search

Platonic solids and the polyhedra have been connected with the world of art and architecture in different cultures and through many centuries. For some Renaissance artists, for example Leonardo da Vinci (1452 -1519), Albrecht Dürer (1471-1528), Piero della Francesca (around 1420-1492), this solids provided the models to demonstrate the properties of the symmetry and to apply the laws of the

Nicoletta Sala

471

\\  

Microsoft Academic Search

The relation between seeing, knowledge, and language has concerned philosophers and artists throughout history. The current article examines the relation between word, image, and knowledge in some prominent Renaissance artworks. It is argued that the shift from revelatory truth in the word to evidence in “seeing the real” as Leonardo da Vinci (1452 -1519) argues in his writings, marks a

Eva Maria Raepple

2009-01-01

472

Roller bearings with rational working surfaces and their manufacture  

Microsoft Academic Search

The development of bearing production may be divided into three stages. The first dates back 500 years, to the invention of ball bearings and roller bearings by Leonardo da Vinci (1452-1519). Intent on reducing friction in machines, Leonardo had the idea of using round bodies. \\

A. V. Korolev; A. A. Korolev; A. N. Vasin

2010-01-01

473

Department of Urology 333 City Blvd. West, Suite 2100  

E-print Network

image-guided needle ablative cryotherapy of renal tumors; laparoscopic and robotic renal surgery renal surgery; and robot-assisted laparoscopic prostatectomy and certification on the da Vinci® robot CENTER Minimally Invasive Urologic Surgery Training Program We welcome your participation. MINI

Cramer, Karina

474

Robotic mitral valve surgery  

Microsoft Academic Search

Traditionally mitral valve surgery has been performed via median sternotomy. However, a renaissance in cardiac surgery is occurring. Cardiac operations are being performed through smaller and alternative incisions with enhanced technological assistance. Specifically, minimally invasive mitral valve surgery has become standard for many surgeons. At our institution, we have developed a robotic mitral surgery program with the da VinciTM telemanipulation

Alan P. Kypson; L. Wiley Nifong; W. Randolph Chitwood

2003-01-01

475

Mathematics in Art and Architecture  

NSDL National Science Digital Library

An interdisciplinary course on mathematics in art and architecture, including the pyramids, Dürer and da Vinci, kaleidoscopes, the Golden Ratio and the Platonic solids, symmetry and patterns, music, Vitruvius, mazes and labyrinths, the origin of perspective, and Escher.

Aslaksen, Helmer

2007-02-19

476

This article was downloaded by: [State University of New York at Albany] On: 24 July 2013, At: 05:39  

E-print Network

in the drawings and paintings of da Vinci and the later woodcuts of Murer and other 16th century artists:39 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954.tandfonline.com/page/terms-and-conditions #12;Introduction I n the 19th century, William Henry Holmes, Grove Karl Gilbert, and William Morris

Mower, James E.

477

Art as science: scientific illustration, 1490-1670 in drawing, woodcut and copper plate.  

PubMed

Observation, depiction and description are active forces in the doing of science. Advances in observation and analysis come with advances in techniques of description and communication. In this article, these questions are related to the work of Leonardo da Vinci, 16th-century naturalists and artists like Conrad Gessner and Teodoro Ghisi, and 17th-century micrographers like Robert Hooke. PMID:10969482

Pyle, C M

2000-01-01

478

Tree Rings as Environmental  

E-print Network

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

Grissino-Mayer, Henri D.

479

Cryptographer  

ERIC Educational Resources Information Center

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…

Sullivan, Megan

2005-01-01

480

Art, Anatomy, and Medicine: Is There a Place for Art in Medical Education?  

ERIC Educational Resources Information Center

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…

Bell, Lawrence T. O.; Evans, Darrell J. R.

2014-01-01

481

ISSUES TO ADDRESS... How do flaws in a material initiate failure?  

E-print Network

loading rate, loading history, and temperature affect the failure stress? Mukhopadhyay......ME 370 #12 S. Steel (metal) 304 S. Steel (metal) 4mm 160mm Mukhopadhyay......ME 370 #12;· DaVinci (500 yrs ago Content & Temperature On Charpy Test of Steel #12;· Pre-WWII: The Titanic · WWII: Liberty ships · Problem

Mukhopadhyay, Sharmila M.

482

Humanities in the High School Classroom.  

ERIC Educational Resources Information Center

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…

Stawski, Conrad

483

The Renaissance Culture and the Arts. Grades 3-6, The Time Traveler Series.  

ERIC Educational Resources Information Center

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;…

Pofahl, Jane

484

Pagina 1 Curriculum Vitae di Arch.Maria Silleci Angelico C U R R I C U L U M  

E-print Network

PIAZZA LEONARDO DA VINCI,32 - 20133-MILANO Telefono 02.2399.9322 Fax 022399.9326 E-mail Maria Servizi Tecnici di Ateneo Capo Divisione Edilizia Leonardo Coordinatore con competenze e responsabilità sul patrimonio edilizio del campus leonardo Manutenzione ordinarie e straordinarie ristrutturazioni e

485

Structural Information Retention in Visual Art Processing.  

ERIC Educational Resources Information Center

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…

Koroscik, Judith Smith

486

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 ai sensi del bando di gara in oggetto: Lattanti Campus Leonardo 1 Rotolito Nicolò 2 Pushkin Eleonora

487

www.presse.uni-erlangen.de Nr. 67 | Juli 2007 | 14. Jahrgang  

E-print Network

Leonardo-Kolleg will - nach dem Vorbild seines Namensge- bers Leonardo da Vinci - in vielfältigen Ver- schaftlichen und kulturellen Institutionen run- den das Programm ab. Das Leonardo-Kolleg der Universität Erlan für die Besten Leonardo-Kolleg eröffnet neue Blickwinkel Mit einem ganz besonderen Angebot fördert die

Fiebig, Peter

488

Using the Earth as an Effective Model for Integrating Space Science Into Education Outreach Programs  

Microsoft Academic Search

Our methods of teaching Earth and space science as two disciplines do not represent the spirit of earlier scientists such as Aristotle, da Vinci, and Galileo. We need to re-evaluate these methods and take advantage of the excitement created in the general public over the recent space science exploration programs. The information that we are obtaining from both the Mars

P. A. Morris; J. Allen; C. Galindo; G. McKay; V. Obot; P. Reiff

2005-01-01

489

DISTRIBUTED CONTROL AND DA FOR ATLAS  

SciTech Connect

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.

D. SCUDDER; ET AL

1999-05-01

490

The Immune System Preferentially Clears Theiler's Virus from the Gray Matter of the Central Nervous System  

Microsoft Academic Search

Infection of susceptible strains of mice with Daniel's (DA) strains of Theiler's murine encephalomyelitis virus (DAV) results in virus persistence in the central nervous system (CNS) white matter and chronic demyelination similar to that observed in multiple sclerosis. We investigated whether persistence is due to the immune system more efficiently clearing DAV from gray than from white matter of the

M. KARIUKI NJENGA; KUNIHIKO ASAKURA; SAMUEL F. HUNTER; PETER WETTSTEIN; LARRY R. PEASE; MOSES RODRIGUEZ

1997-01-01

491

Robotic Repair of Giant Paraesophageal Hernias  

PubMed Central

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

Seetharamaiah, Rupa; Romero, Rey Jesús; Kosanovic, Radomir; Gallas, Michelle; Verdeja, Juan-Carlos; Rabaza, Jorge

2013-01-01

492

Load Segmentation for Convergence of Distribution Automation and Advanced Metering Infrastructure Systems  

NASA Astrophysics Data System (ADS)

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.

Pamulaparthy, Balakrishna; KS, Swarup; Kommu, Rajagopal

2014-12-01

493

Comprehensive program for development of DA/DSM technology at Vattenfall, Sweden`s largest distribution company group  

SciTech Connect

The Swedish government has proposed a bill for deregulation of the Swedish distribution market which will facilitate for the customers to choose to purchase electricity from the producer or supplier offering the best terms. It is anticipated the opening-up of the market for distribution will proceed in several distinct steps commencing in 1994/95. Vattenfall (formerly the Swedish State Power Board) is the major distribution company group in Sweden with 650,000 customers at 20 distribution subsidiaries all over the country. Vattenfall and its distribution companies have recognized the commercial impact of utilizing DA/DSM technology on a deregulated market where competition between distributors will become reality. In this context Vattenfall has recently commenced a development program for demonstrating the possibilities of the technology for increasing competitiveness. The objectives of the DA/DSM development program are to: (1) demonstrate increased efficiency and competitiveness by utilizing modem information technology; (2) deploy extensive knowledge of the possibilities of DA/DSM technology at all of Vattenfall`s distribution subsidiaries; and (3) facilitate successive introduction of mature information technology at Vattenfall`s distribution companies. The program is dealing with a variety of technical and administrative topics such as two way communication with customers, development of new services to customers, fault diagnostics, development of flexible customer information and billing systems, development of Geographical Information Systems (GIS), Customer Information Systems (CIS) and engineering systems, etc.

Melin, S.; Ingvarsson, T.

1994-12-31

494

Design and Implementation Of Embedded Data Acquisition System Based on USB and Flash Multimediacard Memory  

Microsoft Academic Search

Main research in this paper is the DA(data acquisition) system design which based on the USB and MMC. According a USB's chip correlation hardware information, USB protocol, DA systematic structure and singlechip computer information, a hardware development solution was come out in the design. This solution consists of the data acquisition module hardware development design, singlechip computer data acquisition program

Zhiyong Zhang; Tiejun Lu; Xiaobin Chu; Yamin Zhang

2008-01-01

495

A (Des)Razão no Transcurso da Modernidade: Apontamentos Relativos à Teoria Crítica  

Microsoft Academic Search

Este artigo faz parte de uma investigação maior desenvolvida no âmbito do Doutoramento em Ciências da Comunicação. No mesmo procura-se mostrar como dois dos mais destacados representantes da teoria crítica, nomeadamente Theodor Adorno e Max Horkheimer, analisaram o «progresso regressivo» da modernidade. Para estes autores, o mesmo, indiciando as contradições mediadoras da experiência moderna que é nossa, consubstanciava uma prova

Manuel Menezes

496

UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA SADE  

E-print Network

de Freitas, Alacoque Erdmann, Lenilza Mattos Lima e-mails: sergio.freitas@ufsc.br; alacoque.erdmann@ufsc.br; lenilza.mattos@ufsc.br. Ementa: Estrutura político-administrativa da UFSC e do CCS. Plano de carreira

Floeter, Sergio Ricardo

497

Organizzato da: Christopher Smith, British School at Rome  

E-print Network

Organizzato da: Christopher Smith, British School at Rome Attilio Mastrocinque, Università di LIPPOLIS, Attilio MASTROCINQUE, Christopher SMITH - Presentazione 10.00 ­ 10.30 Elio LO CASCIO - I fora e

Guidoni, Leonardo

498

Seo 312 Reitoria /Tcnico-Administrativos Local: Auditrio da Reitoria  

E-print Network

DUARTE FILHO REITORIA-servidor 312 ADRIANA REGINA C.ESPINDOLA KOBIYAMA REITORIA-servidor 312 ADRIANE-servidor 312 ALINE MARIA VIEIRA DA COSTA REITORIA-servidor 312 ALITA DIANA CORREA KUCHLER REITORIA-servidor 312

Floeter, Sergio Ricardo

499

Ris-R-1349(DA) Forskning i Aeroelasticitet EFP-2001  

E-print Network

Risø-R-1349(DA) Forskning i Aeroelasticitet EFP-2001 Redigeret af Helge Aagaard Madsen for Forskning i Aeroelasticitet ­ EFP-2001", gennemført i et samarbejde mellem Risø, DTU og vindmølleindustrien

500

40 CFR 60.52Da - Recordkeeping requirements.  

Code of Federal Regulations, 2013 CFR

...Performance for Electric Utility Steam Generating Units § 60.52Da Recordkeeping requirements...visible emission observer opacity field data sheets; (2) For each performance...visible emission observer opacity field data sheets; and (iv)...

2013-07-01