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1

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

PubMed

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

Nakamura, Hiroshige

2014-05-01

2

Mammary artery harvesting using the Da Vinci Si robotic system  

PubMed Central

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

Canale, Leonardo Secchin; Bonatti, Johannes

2014-01-01

3

Associated Da Vinci and magellan robotic systems for successful treatment of nutcracker syndrome.  

PubMed

Here, we report the case of a 26-year-old woman suffering from nutcracker syndrome with concurrent disabling pelvic congestion syndrome. She was given the minimally invasive treatment of left renal vein transposition with the Da Vinci(®) robotic system (Intuitive Surgical, Sunnyvale, CA), followed the next day by a gonadal vein and pelvic varicose embolization using a robotic intraluminal navigation with the Magellan™ robotic system (Hansen Medical, Mountain View, CA). The procedure was uneventful, and the patient had good results at 6 months of follow-up, including a patent left renal vein and complete relief of symptoms. PMID:25531954

Thaveau, Fabien; Nicolini, Philippe; Lucereau, Benoit; Georg, Yannick; Lejay, Anne; Chakfe, Nabil

2015-01-01

4

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.

5

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.

Florida State University. National High Magnetic Field Laboratory

1999-01-01

6

Medical care issues in Japan highlighted by the regulatory approval of the da Vinci Surgical System.  

PubMed

Twelve years have passed since the emergence of the da Vinci Surgical System in the medical field, and highly advanced medical technology continues to develop rapidly. Surgeons are on a mission to provide better medical service every day. Yet, the Japanese Ministry of Health, Labour, and Welfare is taking a conservative stance against medical advancement. Two major issues that puzzle surgeons are the time-consuming process and delay in approval of medical devices, and limitations on health insurance coverage. The author of this article insists that now is the time to speak up for the reality that the more medical technology develops, the higher the costs that are necessary. He believes that all who are involved need to come together to share values for a better perspective. PMID:21874411

Watanabe, Go

2011-09-01

7

Robot-Assisted Cardiac Surgery Using the Da Vinci Surgical System: A Single Center Experience  

PubMed Central

Background We report our initial experiences of robot-assisted cardiac surgery using the da Vinci Surgical System. Methods Between February 2010 and March 2014, 50 consecutive patients underwent minimally invasive robot-assisted cardiac surgery. Results Robot-assisted cardiac surgery was employed in two cases of minimally invasive direct coronary artery bypass, 17 cases of mitral valve repair, 10 cases of cardiac myxoma removal, 20 cases of atrial septal defect repair, and one isolated CryoMaze procedure. Average cardiopulmonary bypass time and average aorta cross-clamping time were 194.8±48.6 minutes and 126.1±22.6 minutes in mitral valve repair operations and 132.0±32.0 minutes and 76.1±23.1 minutes in myxoma removal operations, respectively. During atrial septal defect closure operations, the average cardiopulmonary bypass time was 128.3±43.1 minutes. The median length of stay was between five and seven days. The only complication was that one patient needed reoperation to address bleeding. There were no hospital mortalities. Conclusion Robot-assisted cardiac surgery is safe and effective for mitral valve repair, atrial septal defect closure, and cardiac myxoma removal surgery. Reducing operative time depends heavily on the experience of the entire robotic surgical team.

Kim, Eung Re; Lim, Cheong; Kim, Dong Jin; Kim, Jun Sung; Park, Kay Hyun

2015-01-01

8

[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

9

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

10

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

11

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

12

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

13

[First 24 Japanese cases of robotic-assisted laparoscopic radical prostatectomy using the daVinci Surgical System].  

PubMed

In Japan, as of September 2007, prostatectomy is conducted with open surgical procedures in more than 90% of the cases. Following the first reported robotic prostatectomy by Binder, et al. in 2000, a robotic-assisted laparoscopic radical prostatectomy (RALP) using the daVinci Surgical System (Intuitive Surgical, Inc., Sunnyvale, California, USA) has been extensively used as a standard procedure with gratifying results in the United States. In the Asian region, in contrast, RALP is still in an introductory phase. Recently, we introduced RALP in Japan. A total of 24 patients received robotic surgery within a year since August 2006. RALP was completed in all patients without conversion to open surgery, except for the first patient in whom a restriction to a 2-hour operation had been imposed by the Ethical Committee. The mean operative time using the daVinci device and the mean estimated blood loss were 232.0 (range; 136-405) minutes and 313.0 (range; 10-1,000) ml, respectively. The training program we recently developed proved remarkably effective in reducing the learning curve of robotic surgery in Japan, where there is no person with expertise in this operating procedure. In particular, the intraoperative guidance given by the expert was useful after relevant problematic points were delineated by operators who received comprehensive video-based image training and actually performed robot surgery in several cases. With direct intraoperative guidance by the mentor during cases 13 and 14, both the operation time and estimated blood loss was markedly reduced. PMID:18546856

Yoshioka, Kunihiko; Hatano, Tadashi; Nakagami, Yoshihiro; Ozu, Choichiro; Horiguchi, Yutaka; Sakamoto, Noboru; Yonov, Hiroyuki; Ohno, Yoshio; Ohori, Makoto; Tachibana, Masaaki; Patel, Vipul R

2008-05-01

14

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

15

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

16

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

17

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

18

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

19

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

20

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

21

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

22

The Potential da Vinci in All of Us  

NSDL National Science Digital Library

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 bones and their articulations. In this unit that focuses on the human skeleton, students are introduced to these concepts by asking them both to study da Vinci's drawing and build their own model of the human skeleton. Units on animal camouflage and architecture are also presented to further support the art and science connection.

Andrew Petto

2009-02-01

23

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

24

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.

25

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.

26

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

27

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.

28

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

29

Toward image-guided robotic surgery: determining intrinsic accuracy of the da Vinci robot  

Microsoft Academic Search

The use of robotics in medicine has been growing in recent years. The introduction of specialized robots for surgery such as the daVinci (Intuitive Surgical, Sunnyvale, CA, USA) has largely motivated this growth. The currently available robotic-assisted surgery systems rely only on direct vision through the use of a laparoscopic camera for surgical guidance. While these cameras provide a stereoscopic

David M. Kwartowitz; S. Duke Herrell; Robert L. Galloway

2006-01-01

30

Plug flow formation and growth in da Vinci Fluids  

E-print Network

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

Moshe Schwartz; Raphael Blumenfeld

2010-04-22

31

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

32

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

ERIC Educational Resources Information Center

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

King, Jean A.

2005-01-01

33

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

34

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

35

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

PubMed

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

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

2015-04-01

36

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

37

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.

38

DaVinci-assisted laparoscopic radical prostatectomy: the learning curve  

NASA Astrophysics Data System (ADS)

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

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

2007-02-01

39

Magnetic tracking in the operation room using the da Vinci(®) telemanipulator is feasible.  

PubMed

In recent years, robotic assistance for surgical procedures has grown on a worldwide scale, particularly for use in more complex operations. Such operations usually require meticulous handling of tissue, involve a narrow working space and limit the surgeon's sense of orientation in the human body. Improvement in both tissue handling and working within a narrow working space might be achieved through the use of robotic assistance. Soft tissue navigation might improve orientation by visualizing important target and risk structures intraoperatively, thereby possibly improving patient outcome. Prerequisites for navigation are its integration into the surgical workflow and accurate localization of both the instruments and patient. Magnetic tracking allows for good integration but is susceptible to distortion through metal or electro-magnetic interference, which may be caused by the operation table or a robotic system. We have investigated whether magnetic tracking can be used in combination with the da Vinci(®) (DV) telemanipulator in terms of stability and precision. We used a common magnetic tracking system (Aurora(®), NDI Inc.) with the DV in a typical operation setup. Magnetic field distortion was evaluated using a measuring facility, with the following reference system: without any metal (R), operation table alone (T), DV in standby (D) and DV in motion (Dm). The maximum error of the entire tracking volume for R, T, D and Dm was 9.9, 32.8, 37.9 and 37.2 mm, respectively. Limiting the tracking volume to 190 mm (from cranial to caudal) resulted in a maximum error of 4.0, 8.3, 8.5 and 8.9 mm, respectively. When used in the operation room, magnetic tracking shows high errors, mainly due to the operation table. The target area should be limited to increase accuracy, which is possible for most surgical applications. The use of the da Vinci(®) telemanipulator only slightly aggravates the distortion and can thus be used in combination with magnetic tracking systems. PMID:23440620

Kenngott, H G; Wegner, I; Neuhaus, J; Nickel, F; Fischer, L; Gehrig, T; Meinzer, H P; Müller-Stich, B P

2013-03-01

40

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

41

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

42

60 Current Cardiology Reviews, 2008, 4, 60-62 The Real Code of Leonardo da Vinci  

E-print Network

Abstract: 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. Key Words: Familial hypercholesterolemia; Leonardo da Vinci.

Leiv Ose

43

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

E-print Network

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

Raphael Blumenfeld; Sam F. Edwards; Moshe Schwartz

2010-04-22

44

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

45

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

46

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

PubMed

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

Ahner, E

2008-04-01

47

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

48

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

49

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

50

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

51

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

52

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

53

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.

54

Avoiding Steric’ Congestion in Dendrimer Growth through Proportionate Branching: A Twist on da Vinci’s Rule of Tree Branching  

PubMed Central

Making defect-free macromolecules is a challenging issue in chemical synthesis. This challenge is especially pronounced in dendrimer synthesis where exponential growth quickly leads to steric congestion. To overcome this difficulty, proportionate branching in dendrimer growth is proposed. In proportionate branching, both the number and the length of branches increase exponentially, but in opposite directions to mimic tree growth. The effectiveness of this strategy is demonstrated through the synthesis of a fluorocarbon dendron containing 243 chemically identical fluorine atoms with a MW of 9,082 Da. Monodispersity is confirmed by nuclear magnetic resonance spectroscopy, mass spectrometry and small-angle X-ray scattering. Growing different parts proportionately, as nature does, could be a general strategy to achieve defect-free synthesis of macromolecules. PMID:23039185

Yue, Xuyi; Taraban, Marc B; Hyland, Laura L.

2013-01-01

55

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

56

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

PubMed Central

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

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

2011-01-01

57

Molecular studies of microbial community structure on stained pages of Leonardo da Vinci's Atlantic Codex.  

PubMed

In 2006, after a visual inspection of the Leonardo da Vinci's Atlantic Codex by a scholar, active molds were reported to have been present on Codex pages showing areas of staining. In the present paper, molecular methods were used to assess the current microbiological risk to stained pages of the manuscript. Bacterial and fungal communities were sampled by a non-invasive technique employing nitrocellulose membranes. Denaturing gradient gel electrophoresis of 16 S rRNA gene and internal transcribed space regions were carried out to study the structure of the bacterial and fungal communities and band patterns were analyzed by the multivariate technique of principal component analysis. Any relationship between the presence of an active microbial community and staining was excluded. The presence of potential biodeteriogens was evaluated by constructing bacterial and fungal clone libraries, analyzing them by an operational taxonomic unit (OTU) approach. Among the bacteria, some OTUs were associated with species found on floors in clean room while others were identified with human skin contamination. Some fungal OTU representatives were potential biodeteriogens that, under proper thermo-hygrometric conditions, could grow. The retrieval of these potential biodeteriogens and microorganisms related to human skin suggests the need for a continuous and rigorous monitoring of the environmental conditions, and the need to improve handling procedures. PMID:20811884

Principi, Pamela; Villa, Federica; Sorlini, Claudia; Cappitelli, Francesca

2011-01-01

58

Validation of the da Vinci Surgical Skill Simulator across three surgical disciplines: A pilot study  

PubMed Central

Objective: In this paper, we evaluate face, content and construct validity of the da Vinci Surgical Skills Simulator (dVSSS) across 3 surgical disciplines. Methods: In total, 48 participants from urology, gynecology and general surgery participated in the study as novices (0 robotic cases performed), intermediates (1–74) or experts (?75). Each participant completed 9 tasks (Peg board level 2, match board level 2, needle targeting, ring and rail level 2, dots and needles level 1, suture sponge level 2, energy dissection level 1, ring walk level 3 and tubes). The Mimic Technologies software scored each task from 0 (worst) to 100 (best) using several predetermined metrics. Face and content validity were evaluated by a questionnaire administered after task completion. Wilcoxon test was used to perform pair wise comparisons. Results: The expert group comprised of 6 attending surgeons. The intermediate group included 4 attending surgeons, 3 fellows and 5 residents. The novices included 1 attending surgeon, 1 fellow, 13 residents, 13 medical students and 2 research assistants. The median number of robotic cases performed by experts and intermediates were 250 and 9, respectively. The median overall realistic score (face validity) was 8/10. Experts rated the usefulness of the simulator as a training tool for residents (content validity) as 8.5/10. For construct validity, experts outperformed novices in all 9 tasks (p < 0.05). Intermediates outperformed novices in 7 of 9 tasks (p < 0.05); there were no significant differences in the energy dissection and ring walk tasks. Finally, experts scored significantly better than intermediates in only 3 of 9 tasks (matchboard, dots and needles and energy dissection) (p < 0.05). Conclusions: This study confirms the face, content and construct validities of the dVSSS across urology, gynecology and general surgery. Larger sample size and more complex tasks are needed to further differentiate intermediates from experts. PMID:23914275

Alzahrani, Tarek; Haddad, Richard; Alkhayal, Abdullah; Delisle, Josée; Drudi, Laura; Gotlieb, Walter; Fraser, Shannon; Bergman, Simon; Bladou, Frank; Andonian, Sero; Anidjar, Maurice

2013-01-01

59

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

Microsoft Academic Search

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 mortality. An Inconvenient Truth, another unexpectedly popular recent movie, is not as

Bernard Beck

2007-01-01

60

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

61

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

62

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

63

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

64

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

65

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

66

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

67

'-> print _ profile VIRTUAL DA VINCI  

E-print Network

University, and has co-authored four papers on immersive environments website: His academic page has links? Are the caves just about fancier videogames, or better cyber-porn? Well sure. As with most technological

Laidlaw, David

68

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

69

A BEM technique for free-molecule flows in high frequency MEMS resonators Department of Structural Engineering, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy  

E-print Network

A BEM technique for free-molecule flows in high frequency MEMS resonators A. Frangi Department Keywords: MEMS Free-molecule flow Dissipation a b s t r a c t A boundary element approach is proposed for the analysis of free-molecule flows in order to evaluate mechanical dissipation in micro-systems working at low

Frangi, Attilio

70

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.

71

Cryptography and The Da Vinci Code  

E-print Network

." Teabing eyed her handiwork and chuckled.: "Right you are. Glad to see those boys at the Holloway are doing What creature hops about and explodes near a naked flame? MX MW E KEWLSTTIV (key shift E) Which

Royal Holloway, University of London

72

MONA, LISA and VINCI Soon Ready to Travel to Paranal  

NASA Astrophysics Data System (ADS)

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

2000-11-01

73

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

74

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

75

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

76

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

PubMed

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

Ciseri, Lorenzo Montemagno

2014-01-01

77

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.

78

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.

79

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

80

Interferometric observations of eta Carinae with VINCI/VLTI  

E-print Network

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

Pierre Kervella

2006-12-11

81

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.

82

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

83

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

84

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

85

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.

86

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

ERIC Educational Resources Information Center

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

Cook, Michael; Gillam, Barbara

2004-01-01

87

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

88

A Survey of adaptation systems Keling DA #1  

E-print Network

1 A Survey of adaptation systems Keling DA #1 , Marc DALMAU #2 , Philippe ROOSE #3 UPPA, LIUPPA@univ-pau.fr Abstract--Development of ubiquitous applications is inherently complex. Adaptation system is a solution for ubiquitous comput- ing. It enhances the efficiency of application by the adaptation of software, facilitates

Paris-Sud XI, Université de

89

Ovarian cystectomy for a dermoid cyst with the new single-port robotic system.  

PubMed

We report a 27 year-old patient with a dermoid cyst who underwent robotic single port transumbilical ovarian cystectomy. She was operated through a 2 cm long single midline umbilical incision using a new platform from Intuitive Surgical. The operative time was 45 minutes and the docking time was 15 minutes. Ovarian cystectomy using the da Vinci single-port system is feasible and effective. This new semi-rigid robotic surgery platform may increase access to the potential advantages of single-site surgery. Robotic systems designed specifically for single port approach have the potential of alleviating several of the limitations associated with traditional laparoscopic single-site surgery. PMID:25175356

Gungor, Mete; Kahraman, Korhan; Ozbasli, Esra; Genim, Canan

2015-04-01

90

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

91

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

92

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

SciTech Connect

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

Absil, Olivier [Dept. d'Astrophysique, Geophysique and Oceanographie Universite de Liege, 17 Allee du Six Aout, B-4000 Sart Tilman (Belgium); Mennesson, Bertrand [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Le Bouquin, Jean-Baptiste [European Southern Observatory, Casilla 19001, Santiago 19 (Chile); Di Folco, Emmanuel; Kervella, Pierre [LESIA-UMR 8109, CNRS and Observatoire de Paris-Meudon, 5 place J. Janssen, F-92195 Meudon (France); Augereau, Jean-Charles [LAOG-UMR 5571, CNRS and Universite Joseph Fourier, BP 53, F-38041 Grenoble (France)

2009-10-10

93

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

94

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

95

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

PubMed Central

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

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

2013-01-01

96

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

E-print Network

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

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

2013-01-01

97

Development of noSQL data storage for the ATLAS PanDA Monitoring System  

Microsoft Academic Search

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

M Potekhin

2012-01-01

98

Evolution of the ATLAS PanDA Production and Distributed Analysis System  

NASA Astrophysics Data System (ADS)

The PanDA (Production and Distributed Analysis) system has been developed to meet ATLAS production and analysis requirements for a data-driven workload management system capable of operating at LHC data processing scale. PanDA has performed well with high reliability and robustness during the two years of LHC data-taking, while being actively evolved to meet the rapidly changing requirements for analysis use cases. We will present an overview of system evolution including automatic rebrokerage and reattempt for analysis jobs, adaptation for the CernVM File System, support for the multi-cloud model through which Tier-2 sites act as members of multiple clouds, pledged resource management and preferential brokerage, and monitoring improvements. We will also describe results from the analysis of two years of PanDA usage statistics, current issues, and plans for the future.

Maeno, T.; De, K.; Wenaus, T.; Nilsson, P.; Walker, R.; Stradling, A.; Fine, V.; Potekhin, M.; Panitkin, S.; Compostella, G.

2012-12-01

99

Wearable augmented reality system using an IrDA device and a passometer  

NASA Astrophysics Data System (ADS)

This paper describes a wearable augmented reality system with an IrDA device and a passometer. To realize augmented reality systems, the position and orientation of user's viewpoint should be obtained in real time for aligning the real and virtual coordinate systems. In the proposed system, the orientation of user's viewpoint is measured by an inertial sensor attached to the user's glasses, and the position is measured by using an IrDA device and a passometer. First, the user's position is specified exactly when the user comes into the infrared ray range of the IrDA markers which are set up to the appointed points. When the user goes out of the infrared ray range, the user's position is estimated by using a passometer. The passometer is constructed of an electronic compass and acceleration sensors. The former can detect the user's walking direction. The latter can count how many steps the user walks. These data and the user's pace make it possible to estimate the user's position in the neighborhood of the IrDA markers. We have developed a navigation system based on using the techniques above and have proven the feasibility of the system with experiments.

Tenmoku, Ryuhei; Kanbara, Masayuki; Yokoya, Naokazu

2003-05-01

100

Quantitative Performance Assessment of Surgical Robot Systems: TeleRobotic FLS  

E-print Network

of Washington, RAVEN Surgical Robot, was a collaborative effort between surgeons and engineers from multiple, and (3) participation in a NASA training mission during which the RAVEN was placed in an undersea habitat. The effect of time delay in telesurgery using the RAVEN and the effect of 3D vision using the ISI da Vinci

101

PanDA: Next Generation Workload Management and Analysis System for Big Data  

E-print Network

In real world any big science project implies to use a sophisticated Workload Management System (WMS) that deals with a huge amount of highly distributed data, which is often accessed by large collaborations. The Production and Distributed Analysis System (PanDA) is a high-performance WMS that is aimed to meet production and analysis requirements for a data-driven workload management system capable of operating at The Large Hadron Collider (LHC) data processing scale.

De, K; The ATLAS collaboration; Panitkin, S; Titov, M; Vaniachine, A; Wenaus, T; Yu, D; Záruba, G

2012-01-01

102

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

E-print Network

of different actuation technologies 19 III Comparison of the mechanical properties of different thermoplastics's consol for da Vinci system 14 (b) da vinci system's Master and slave manipulator with four arms 14 2.7 (a Shape Memory Alloy Actuator 17 3.2 (a) Hydraulic actuator 18 (b) Linear actuator using micro motor 18 (c

Cavusoglu, Cenk

103

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

E-print Network

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

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

2003-12-09

104

Integration of PanDA workload management system with Titan supercomputer at OLCF  

E-print Network

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

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

2015-01-01

105

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

E-print Network

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

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

2013-01-01

106

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

107

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

108

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 have being met with a R&D and development effort aimed at implementing a scalable and efficient monitoring data storage based on a noSQL solution (Cassandra). We present the data design and indexing strategies for efficient queries, as well as our experience of operating a Cassandra cluster and interfacing it with a Web service.

Ito, H; The ATLAS collaboration; Wenaus, T

2012-01-01

109

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

110

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

E-print Network

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

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

2014-01-01

111

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

112

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

113

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

114

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

115

gLExec Integration with the ATLAS PanDA Workload Management System  

E-print Network

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

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

2015-01-01

116

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

NASA Astrophysics Data System (ADS)

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

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

117

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

118

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 #12;ABSTRACT This report aims to evaluate the current practices of waste management at UBC

119

Robotic-assisted pelvic organ prolapse surgery  

Microsoft Academic Search

Background: This study describes technical aspect and short-term results of pelvic organ prolapse surgery using the da Vinci robotic system. Methods: During a 1-year period, 18 consecutive patients with pelvic organ prolapse were operated on using the da-Vinci system. Clinical data were prospectively collected and analyzed. Results: All but one procedure was successfully completed robotically (95%). Performed procedures were colpohysteropexy

A. Ayav; L. Bresler; J. Hubert; L. Brunaud; P. Boissel

2005-01-01

120

Geo\\/Environmental and Medical Data Management in the RasDaMan System  

Microsoft Academic Search

Multidimensional discrete data (MDD) - i.e., arrays of arbitrary size, dimension, and base type - appear in a variety of business, tech- nical, and scientific application fields. Ras- DaMan is an effort to give comprehensive domain-independent MDD database support. Based on a formal algebraic array model, Ras- DaMan offers declarative array operators em- bedded in standard SQL; key DBMS com-

Peter Baumann; Paula Furtado; Roland Ritsch; Norbert Widmann

1997-01-01

121

Cost-Benefit Performance of Robotic Surgery Compared with Video-Assisted Thoracoscopic Surgery under the Japanese National Health Insurance System.  

PubMed

Background: Medical economics have significant impact on the entire country. The explosion in surgical techniques has been accompanied by questions regarding actual improvements in outcome and cost-effectiveness, such as the da Vinci(®) Surgical System (dVS) compared with conventional video-assisted thoracic surgery (VATS).Objective: To establish a medical fee system for robot-assisted thoracic surgery (RATS), which is a system not yet firmly established in Japan.Methods: This study examines the cost benefit performance (CBP) based on medical fees compared with VATS and RATS under the Japanese National Health Insurance System (JNHIS) introduced in 2012.Results: The projected (but as yet undecided) price in the JNHIS would be insufficient if institutions have less than even 200 dVS cases per year. Only institutions which perform more than 300 dVS operations per year would obtain a positive CBP with the projected JNHIS reimbursement.Conclusion: Thus, under the present conditions, it is necessary to perform at least 300 dVS operations per year in each institution with a dVS system to avoid financial deficit with current robotic surgical management. This may hopefully encourage a downward price revision of the dVS equipment by the manufacture which would result in a decrease in the cost per procedure. PMID:24835923

Kajiwara, Naohiro; Patrick Barron, James; Kato, Yasufumi; Kakihana, Masatoshi; Ohira, Tatsuo; Kawate, Norihiko; Ikeda, Norihiko

2014-05-16

122

IrDA-VFIr (16 Mb\\/s): modulation code and system design  

Microsoft Academic Search

Devices for convenient information exchange over the wireless infrared channel are commonly found in many of today's mobile platforms for computing, communicating, and imaging. Most devices comply with the international standards promoted by the Infrared Data Association for data rates of up to 4 Mb\\/s. With the approval of a 16 Mb\\/s data rate option called Very Fast Infrared, IrDA's

Walter Hirt; Martin Hassner; Nyles Heise

2001-01-01

123

The prolactin gene is expressed in the hypothalamic-neurohypophyseal system and the protein is processed into a 14-kDa fragment with activity like 16-kDa prolactin.  

PubMed Central

The 23-kDa form of prolactin (PRL) has been proposed to function as both a mature hormone and a prohormone precursor for different uniquely bioactive forms of the molecule. We have shown that the 16-kDa N-terminal fragment of PRL (16K PRL) inhibits angiogenesis via a specific receptor. In addition, 16K PRL stimulates natriuresis and diuresis in the rat, and kidney membranes contain high-affinity specific binding sites for this PRL fragment. 16K PRL can be derived from an enzymatically cleaved form of PRL (cleaved PRL). With the use of a specific 16K PRL antiserum, we have localized a 14-kDa immunoreactive protein in the paraventricular and supraoptic nuclei of the hypothalamus and in the neurohypophysis. Reverse transcription-polymerase chain reaction of RNA from isolated paraventricular nuclei showed the expression of the full-length PRL mRNA. The neurohypophysis was found to contain the enzymes that produce cleaved PRL, small amounts of PRL, and cleaved PRL. Medium conditioned by neurohypophyseal cultures, enriched with the 14-kDa immunoreactive protein, has antiangiogenic effects that are blocked by the 16K PRL antiserum. These results are consistent with the expression of PRL in the hypothalamic-neurohypophyseal system, and the preferential processing of the protein into a 14-kDa fragment with biological and immunological properties of 16K PRL. Images PMID:7937959

Clapp, C; Torner, L; Gutiérrez-Ospina, G; Alcántara, E; López-Gómez, F J; Nagano, M; Kelly, P A; Mejía, S; Morales, M A; Martínez de la Escalera, G

1994-01-01

124

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

SciTech Connect

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

Hensler, J.G.

1987-01-01

125

Characterization of the Su antigen, a macromolecular complex of 100/102 and 200-kDa proteins recognized by autoantibodies in systemic rheumatic diseases.  

PubMed

The Su autoantigen was characterized biochemically using human and murine autoimmune sera and the clinical significance of anti-Su antibodies was studied in 236 Japanese and 160 American patients with systemic rheumatic diseases. Anti-Su in immunodiffusion (ID) was strongly associated with immunoprecipitation of one or more 100- to 102-kDa proteins by MRL/lpr mouse sera (27/32 of ID positive vs 4/20 of ID negative, P = 0.000016), and all four human anti-Su reference sera immunoprecipitated the 100/102-kDa protein(s). In addition, all sera immunoprecipitated a less efficiently labeled approximately 200-kDa protein that comigrated on sucrose density gradients with the 100/102-kDa proteins. Based on these data, a complex of the 100/102-kDa and 200-kDa proteins is likely to be the main target of anti-Su antibodies. Three of four anti-Su monospecific sera were negative for immunofluorescent antinuclear antibodies (ANA), suggesting anti-Su antibodies may be associated with a negative ANA in some cases. Autoantibodies to Su were detected frequently by immunoprecipitation in systemic lupus erythematosus (17-21%), scleroderma (13-20%), and overlap syndrome (22-40%) and were associated with autoantibodies to Ku. PMID:7923910

Satoh, M; Langdon, J J; Chou, C H; McCauliffe, D P; Treadwell, E L; Ogasawara, T; Hirakata, M; Suwa, A; Cohen, P L; Eisenberg, R A

1994-10-01

126

[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

127

Su Da?itim Sistemi için SCADA Sistem Haberle?mesi Planlamasi Planning SCADA System Communication for Water Distribution System  

Microsoft Academic Search

In recent years, SCADA (Supervisory Control and Data Acquisition) systems have been important technological structures for automatic control and information transfer. These systems are used not only in most industrial processes as water distribution systems, but also in some experimental facilities such as nuclear fusion. There are three major components in a SCADA system. These components are the master station,

Özge ?AH?N

128

PanDA: distributed production and distributed analysis system for ATLAS  

NASA Astrophysics Data System (ADS)

A new distributed software system was developed in the fall of 2005 for the ATLAS experiment at the LHC. This system, called PANDA, provides an integrated service architecture with late binding of jobs, maximal automation through layered services, tight binding with ATLAS Distributed Data Management system [1], advanced error discovery and recovery procedures, and other features. In this talk, we will describe the PANDA software system. Special emphasis will be placed on the evolution of PANDA based on one and half year of real experience in carrying out Computer System Commissioning data production [2] for ATLAS. The architecture of PANDA is well suited for the computing needs of the ATLAS experiment, which is expected to be one of the first HEP experiments to operate at the petabyte scale.

Maeno, T.

2008-07-01

129

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

130

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

131

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

132

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

133

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

134

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

135

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

136

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.

137

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

138

Establishment of a genetic transformation system for the marine pennate diatom Fistulifera sp. strain JPCC DA0580--a high triglyceride producer.  

PubMed

A genetic transformation system for the marine pennate diatom, Fistulifera sp. JPCC DA0580, was established using microparticle bombardment methods. Strain JPCC DA0580 has been recently identified as the highest triglyceride (60 % w/w) producer from a culture collection of 1,393 strains of marine microalgae, and it is expected to be a feasible source of biodiesel fuel. The transformation conditions for strain JPCC DA0580 were optimised using the green fluorescent protein gene (gfp) and the gene encoding neomycin phosphotransferase II (nptII). The most efficient rate of transformation was attained when tungsten particles (0.6 ?m in diameter) were used for microparticle bombardment. The effect of endogenous and exogenous promoters on the expression of nptII was examined. Endogenous promoters were more efficient for obtaining transformants compared with exogenous promoters. Southern hybridisation analysis suggested that nptII integrated into the nuclear genome. This genetic manipulation technique should allow us to understand the mechanisms of high triglyceride accumulation in this strain, thereby contributing to improving BDF production. PMID:22555859

Muto, Masaki; Fukuda, Yorikane; Nemoto, Michiko; Yoshino, Tomoko; Matsunaga, Tadashi; Tanaka, Tsuyoshi

2013-02-01

139

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

140

Robotic surgical education: A systematic approach to training urology residents to perform robotic-assisted laparoscopic radical prostatectomy  

Microsoft Academic Search

ObjectivesRobotic-assisted surgery using the da Vinci Surgical System is gaining popularity among urologists. However, training residents to use this system presents new challenges for surgical educators. We describe a method for training residents to perform robotic-assisted radical prostatectomy.

Hani H. Rashid; Yuk-Yuen M. Leung; Megan J. Rashid; Gregory Oleyourryk; John R. Valvo; Louis Eichel

2006-01-01

141

VA Informatics and Computing Infrastructure VINCI Organization  

E-print Network

GRAM NEGATIVE RODS GRAM NEG BACILLI ENTEROCOCCUS FAECALIS - VANCOMYCIN RESISTANT ENTEROCOCCUS FAECIUM ENTEROCOCCUS SPP. #12;INFLIXIMAB 100MG/VIL (PF) INJ INFLIXIMAB 100MG/VIL PF INJ INFLIXIMAB 100MG INJ INFLIXIMAB

142

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

143

Telesurgical Laparoscopic Radical Prostatectomy  

Microsoft Academic Search

Introduction: Telepresence surgery offers theoretically to overcome two main problems of laparoscopic surgery, i.e. the limitation to only four degrees of freedom and the lack of stereovision. Since 1998, telesurgical minimally invasive procedures have been performed with the da Vinci system mainly for cardiac bypass surgery. Clinical experience in urology is still very limited. We want to present our initial

Jens Rassweiler; Thomas Frede; Othmar Seemann; Christian Stock; Ludger Sentker

2001-01-01

144

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

145

Advanced thoracoscopic procedures are facilitated by computer-aided robotic technologyq  

Microsoft Academic Search

Objective: Computer (robotic) enhancement has been used to facilitate simple thoracoscopic procedures such as internal mammary artery (IMA) mobilization. This report describes the use of robotic technology in advanced thoracoscopic procedures. Methods: Ten patients underwent advanced thoracoscopic procedures utilizing the Da Vinci robotic surgical system (Intuitive Surgical, Mountain View, CA) at our institution. Results: Patients 1 - 6 underwent endoscopic

Jeffrey A. Morgan; Mark E. Ginsburg; Joshua R. Sonett; David L. S. Morales; Takushi Kohmoto; Lyall A. Gorenstein; Craig R. Smith; Michael Argenziano

146

Advanced thoracoscopic procedures are facilitated by computer-aided robotic technology  

Microsoft Academic Search

Objective: Computer (robotic) enhancement has been used to facilitate simple thoracoscopic procedures such as internal mammary artery (IMA) mobilization. This report describes the use of robotic technology in advanced thoracoscopic procedures. Methods: Ten patients underwent advanced thoracoscopic procedures utilizing the Da Vinci robotic surgical system (Intuitive Surgical, Mountain View, CA) at our institution. Results: Patients 1–6 underwent endoscopic phrenic nerve

Jeffrey A. Morgan; Mark E. Ginsburg; Joshua R. Sonett; David L. S. Morales; Takushi Kohmoto; Lyall A. Gorenstein; Craig R. Smith; Michael Argenziano

2003-01-01

147

Desarrollo multidisciplinario de la cirugía robótica en un hospital universitario de tercer nivel: organización y resultados  

Microsoft Academic Search

BackgroundDa Vinci system (Intuitive Surgical®) is a surgical telemanipulator providing many technical advantages over conventional laparoscopic approach (3-D vision, ergonomics, highly precise movements, endowrist instrumentation…) and it is currently applied to several specialties throughout the world since 2000. The first Spanish public hospital incorporating this robotic technology was Hospital Clinico San Carlos (HCSC) in Madrid, in July 2006.We present the

Elena Ortiz Oshiro; Ángel Ramos Carrasco; Jesús Moreno Sierra; Cristina Pardo Martínez; Isabel Galante Romo; Fernando Bullón Sopelana; Pluvio Coronado Martín; Iván Mansilla García; María Escudero Mate; José A. Vidart Aragón; Ángel Silmi Moyano; Jesús Álvarez Fernández-Represa

2010-01-01

148

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

149

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

150

[Expression and activity of polymorphisms in the 67-kDa protein of the NADPH oxidase system].  

PubMed

The NADPH oxidase system plays a central role in the antimicrobial activity of phagocytes. This system is initiated by the translocation of cytosolic proteins p67phox, p47phox and p40phox to be in close contact with membrane flavocytochrome b558. This event begins the electron transfer from cytosolic NADPH to molecular oxygen to produce superoxide anions. Herein, a functional analysis is presented of p67phox polymorphisms identified from healthy humans. Mutations were generated in the p67phox cDNA by site-directed mutagenesis and then transiently expressed in COS7 cells that also expressed gp91phox, p22phox, and p47phox from stable transgenes. The changes Va1166lle, Pro329Ser and His389Gln correspond to possible polymorphisms identified in healthy individuals revealed a functional activity similar to COSphox cells transiently transfected with WT p67phox; therefore, these modifications are not associated with genetic deficiencies in NADPH oxidase. In conclusion, the COSphox system represents an easily transfectable model for analysis of NADPH oxidase function in intact cells. The analysis of mutant derivatives of p67phox provides insight into molecular mechanisms by which this subunit regulates the NADPH oxidase. PMID:15551878

Arias, Andrés Augusto; Dinauer, Mary C; Ding, Jiabin; Matute, Juan David; Patiño, Pablo Javier

2004-09-01

151

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

PubMed

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

Rygula, Rafal; Papciak, Justyna; Popik, Piotr

2014-07-01

152

QUANTIFICAÇÃO DA INFLUÊNCIA DA ESPESSURA DA MAMA NA QUALIDADE DA IMAGEM MAMOGRÁFICA  

Microsoft Academic Search

Resumo - A compressão mamária é fundamental na qualidade da imagem mamográfica. Ela é responsável pelo posicionamento das estruturas da mama o mais próximo possível do filme reduzindo a dispersão e a magnificação da estrutura mamária. Este trabalho tem o objetivo de quantificar o quanto à compressão influência na qualidade da imagem mamográfica. Para isso foram obtidas imagens no Mamógrafo

Alécio Fiel Filho; Silvia C. M. Rodrigues; Engenharia Biomédica

153

Desapareceu "voz da cincia"  

E-print Network

Desapareceu "voz da ciência" contra o nuclear em Portugal Obituário Lurdes Ferreira e Ricardo, em Lisboa. Tinha 79 anos e dedicou a maior parte da sua vida profissional ao IST. Cerca de vinte anos depois, foi protagonista da luta contra a instalação de uma central nuclear em Portugal, em Ferrei. Ao

Instituto de Sistemas e Robotica

154

Protein 1 and Clara cell 10-kDa protein distribution in normal and neoplastic tissues with emphasis on the respiratory system  

Microsoft Academic Search

Thirty-six different normal tissues and 13 different malignant epithelial tumours, were examined immunohistochemically for the presence of protein 1 (P1) and Clara cell 10-kDa protein (CC10). Adenocarcinomas of the lung were also examined for the expression of pulmonary surfactant apoprotein using a monoclonal antibody (PE-10). The staining results of P1 and CC10 were almost identical both in normal tissues and

H. Nomori; S. Morinaga; R. Kobayashi; C. Torikata

1994-01-01

155

Nobel da Medicina em debate sobre a importncia da cincia  

E-print Network

Nobel da Medicina em debate sobre a importância da ciência lisboa O Nobel da Medicina e atual presidente da Royal Society (a congénere britânica da Acade- mia das Ciências) , Paul Nurse, está hoje em Lisboa para falar de ciên- cia e da forma como ela pode ser eficaz e imprescindível nas socie- dades

Instituto de Sistemas e Robotica

156

[Robotic colorectal surgery: current status and future developments].  

PubMed

Robotic assistance has the potential to compensate for the limitations inherent in standard laparoscopic surgery. The daVinci® surgical system remains the only currently available commercial robotic system. It has found popularity in rectal cancer surgery where its application has consistently been shown to reduce the need to convert to open surgery. With this exception, the technological advances of the robotic system have not so far translated into any reproducible patient benefit. The first part of this manuscript presents an overview of the current daVinci® platform, its applications, the evidence base and future developments in colorectal surgery. The second part of the manuscript looks at other robot systems in development and the different innovations and strategies taken to advance minimally invasive surgery.The English full-text version of this article is available at SpringerLink (under supplemental). PMID:23942959

Jayne, D

2013-08-01

157

A APLICAÇÃO DA LOGÍSTICA INTEGRADA E DA TECNOLOGIA DA INFORMAÇÃO COMO OTIMIZAÇÃO DE RECURSOS ENERGÉTICOS  

Microsoft Academic Search

Este artigo apresenta oportunidades de melhorias da qualidade de vida dos empregados, dos negócios e do planeta, utilizando a logística e a sua interação com a tecnologia da informação, através do uso de tecnologias limpas. A chave foi idenntificar possibilidades de uso da gestão do conhecimento e da tecnologia da informação como alavancadoras de soluções, que permitam reduzir custos, sejam

Jose Eduardo Fernandes

2008-01-01

158

Robotic Technology  

Microsoft Academic Search

Robotic surgery is an evolving and exciting field. We discuss the history of robotics in general and its introduction into\\u000a medicine. Specific details of robotics in urology then follow with an introduction to the available systems. The chapter then\\u000a concentrates on the da Vinci system which is currently the unchallenged master-slave platform. Comparisons between first and\\u000a second generations of the

Oussama Elhage; Nicholas Hegarty

159

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

160

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

161

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

162

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

E-print Network

only the Gordon and Breach Science Publishers imprint. Printed in Malaysia. LEONARDO DA VINCI'S TENSILE STRENGTH TESTS: IMPLICATIONS FOR THE DISCOVERY OF ENGINEERING MECHANICS JAY R. LUNDa, * and JOSEPH P's study of the tensile strength of iron wire. LEONARDO DA VINCI'S TENSILE TESTS In his notebooks (CA, 82v

Pasternack, Gregory B.

163

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

164

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.

165

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

166

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

167

Department of Physics & Astronomy Experimental Particle Physics Group  

E-print Network

Department of Physics & Astronomy Experimental Particle Physics Group Kelvin Building, University of DaVinci, Boole, Brunel and Gauss have been automated. #12; LHCb 2004-066 Software Distribution of packages up to the level of DaVinci, Boole, Brunel and Gauss have been automated. #12; Contents 1

Glasgow, University of

168

Feasibility of Transoral Robotic-Assisted High Resolution Microendoscopic Imaging of Oropharyngeal Squamous Cell Carcinoma.  

PubMed

Background: Transoral robotic-assisted oncologic surgery of the head and neck offers promising functional results. Nonetheless, the efficacy of oncologic surgery remains critically dependent on obtaining negative margins. We aimed to integrate a miniaturized high resolution fiberoptic microendoscope (HRME), which provides real time histological assessment, with the da Vinci robotic system (Intuitive Surgical Inc., Sunnyvale, CA). Methods: Three patients undergoing transoral robotic surgery were prospectively enrolled. Optical imaging of the oropharynx was performed intraoperatively with the robotic-assisted HRME. Results: All patients underwent the procedure successfully with no complications. The HRME was successfully integrated with the Da Vinci Robotic system. Several sites of the oropharynx and associated malignancy were imaged, which correlated with the standard histopathological analysis. Conclusions: Transoral robotic-assisted high resolution microendoscopic imaging of the oropharynx is a safe and technically feasible approach, providing a real time histological assessment and may serve as a valuable aid in oncologic surgery. Head Neck, 2014. PMID:25327825

Patsias, A; Giraldez-Rodriguez, LA; Polydorides, Ad; Richards-Kortum, R; Anandasabapathy, S; Quang, T; Sikora, Ag; Miles, Ba

2014-10-17

169

[Total port-access robot-assisted lobectomy for lung cancer].  

PubMed

We reported 2 cases of total port-access right lower lobectomy with hilar and mediastinal lymph nodal dissection using the da Vinci surgical system through subcostal trans-diaphragmatic approach. In case 1, the operating time was 6 hours 00 minutes, and the total blood loss was little. In case 2, the operating time was 6 hours 30 minutes, and the total blood loss was little. The da Vinci surgical system provides a high-resolution stereoscopic image and allows remote, tremor-free, and scaled control of endoscopic surgical instruments with 7 degrees of freedom. Minimally invasive robot-assisted lobectomy is an effective procedure and may add benefits for both surgeon and patients. PMID:22647326

Tanaka, Yusuke; Oda, Makoto; Matsumoto, Isao; Takizawa, Masaya; Waseda, Ryuichi; Tanaka, Nobuyoshi; Shimada, Mari; Ishikawa, Norihiko; Watanabe, Go

2012-06-01

170

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

171

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.

Megan Sullivan

2005-11-01

172

E-LEARNING TOOL & REMOTE EXPERIMENT ON ELECTRICAL CIRCUITS  

Microsoft Academic Search

The paper proposes an innovative approach of the teaching method using a virtual & remote laboratory. The e-learning product consists of two parts: theoretical part and the remote experiment. The e-learning tool presented in this paper has been accomplished in the Leonardo da Vinci pilot project Virtual-Electro-Lab. The goal of the project consisted of developing a complex training system in

Gheorghe SCUTARU; Florin SANDU; Mihai CERNAT

173

Robot-assisted one-stage resection of rectal cancer with liver and lung metastases.  

PubMed

The Da Vinci Surgical System may help to overcome some of the difficulties of laparoscopy for complicated abdominal surgery. The authors of this article present a case of robot-assisted, one-stage radical resection of three tumors, including robotic anterior resection for rectal cancer, segmental hepatectomy for liver metastasis, and wedge-shaped excision for lung metastasis. A 59-year-old man with primary rectal cancer and liver and lung metastases was operated upon with a one-stage radical resection approach using the Da Vinci Surgical System. Resection and anastomosis of rectal cancer were performed extracorporeally after undocking the robot. The procedure was successfully completed in 500 min. No surgical complications occurred during the intervention and postoperative period, and no conversion to laparotomy or additional trocars were required. To the best of our knowledge, this is the first case of simultaneous resection for rectal cancer with liver and lung metastases using the Da Vinci Surgery System to be reported. The procedure is feasible and safe and its main advantages for patient are avoiding repeated operation, reducing surgical trauma, shortening recovery time, and early implementation of postoperative adjuvant therapy. PMID:25759560

Xu, Jian-Min; Wei, Ye; Wang, Xiao-Ying; Fan, Hong; Chang, Wen-Ju; Ren, Li; Jiang, Wei; Fan, Jia; Qin, Xin-Yu

2015-03-01

174

Robot-assisted one-stage resection of rectal cancer with liver and lung metastases  

PubMed Central

The Da Vinci Surgical System may help to overcome some of the difficulties of laparoscopy for complicated abdominal surgery. The authors of this article present a case of robot-assisted, one-stage radical resection of three tumors, including robotic anterior resection for rectal cancer, segmental hepatectomy for liver metastasis, and wedge-shaped excision for lung metastasis. A 59-year-old man with primary rectal cancer and liver and lung metastases was operated upon with a one-stage radical resection approach using the Da Vinci Surgical System. Resection and anastomosis of rectal cancer were performed extracorporeally after undocking the robot. The procedure was successfully completed in 500 min. No surgical complications occurred during the intervention and postoperative period, and no conversion to laparotomy or additional trocars were required. To the best of our knowledge, this is the first case of simultaneous resection for rectal cancer with liver and lung metastases using the Da Vinci Surgery System to be reported. The procedure is feasible and safe and its main advantages for patient are avoiding repeated operation, reducing surgical trauma, shortening recovery time, and early implementation of postoperative adjuvant therapy.

Xu, Jian-Min; Wei, Ye; Wang, Xiao-Ying; Fan, Hong; Chang, Wen-Ju; Ren, Li; Jiang, Wei; Fan, Jia; Qin, Xin-Yu

2015-01-01

175

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.

176

Aspectos Complexos da Implantação de Metodologias da Qualidade  

Microsoft Academic Search

Resumo: O objetivo deste artigo é, por meio de revisão bibl iográfica, ampliar o entendimento da aplicação de conceitos da Ciência d a Complexidade, por vezes chamada Teoria do Caos, a qual estuda o comportamento de si stemas dinâmicos complexos não lineares, na aplicação de Metodologias da Qualidade nas empresas, principalmente TQM, Reengenharia, ISO9000 e Seis Sigma, que também pode

Alberto W. Ramos

177

Modelo da Gestão da Cadeia de Abastecimento na Construção  

Microsoft Academic Search

Resumo Na indústria em geral, e principalmente na construção, a entrega dos recursos necessários à actividade é um factor essencial para o sucesso do negócio. Para tal contribui, em grande medida, a logística interna da própria empresa. A definição de um modelo de gestão da cadeia de abastecimento para a indústria da construção é, impreterivelmente, uma das formas de optimizar

Tiago Pinho; José Telhada; Maria Sameiro Carvalho

178

INFLUÊNCIA DO DESCAROÇAMENTO NAS CARACTERÍSTICAS TECNOLÓGICAS DA FIBRA DO ALGODÃO ANALISADAS PELO HVI (HIGH VOLUME INSTRUMENTS) E PELO AFIS (ADVANCED FIBER INFORMATION SYSTEM)1  

Microsoft Academic Search

This work had the objective to evaluate the effect of three cotton ginning methods on intrinsic and extrinsic cotton fiber characteristics analized by the HVI (High Volume Instrumentes) and AFIS (Advanced Fiber Information System) equipaments. The following treatments were studied: 1) roller gin machine; 2) 50 saw-brush gin smal works prototype; 3) stand 90 saw-brush gin machine. Seed cotton samples

ODILON RENY; RIBEIRO FERREIRA DA SILVA; MARIA JOSÉ DA SILVA

179

Robotic surgery in gynecology.  

PubMed

Advanced laparoscopic procedures for gynecologic surgery have not been widely adopted in clinical practice despite nearly 20 years of improvements in laparoscopic technology. The da Vinci robotic surgical system was cleared for use in gynecologic surgery in the U.S in 2005. Many surgeons have embraced da Vinci technology over conventional laparoscopy because of its technologic advantages of wristed instrumentation, high definition 3-D optics, ergonomics, and autonomy of camera control. Furthermore, many surgeons with limited advanced laparoscopic skills have successfully converted their practice from primarily laparotomy to minimally invasive surgery using the da Vinci System. The purpose of this article is to review the development of robotic procedures in gynecology through the current literature. This article reviews recent peer-reviewed literature concerning robotic-assisted laparoscopic procedures including hysterectomy, myomectomy, radical hysterectomy, pelvic and aortic lymphadenectomy, trachelectomy, parametrectomy, tubal anastamosis, sacrocolpopexy, and others. The majority of this literature consists of descriptive retrospective case series from the investigator's early experience; in fact these early reports represent innovation of a new operative technique. Some reports compare outcomes to open and standard laparoscopic procedures. Future prospective studies comparing complications, pain, return to routine activity, and long-term clinical outcomes with open and laparoscopic procedures will be necessary to completely appreciate the impact of robotic technology. PMID:19799047

Holloway, R W; Patel, S D; Ahmad, S

2009-01-01

180

Recent Improvements in the ATLAS PanDA Pilot  

NASA Astrophysics Data System (ADS)

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

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

2012-12-01

181

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

182

The role of DA1- and DA2-receptors in the control of blood pressure  

PubMed Central

1 Endogenous dopamine, acting through specific receptors on blood vessels, renal tubules and adrenal cortical cells, may play a role in the development and maintenance of the hypertensive state. 2 In hypertensive patients, activation of the DA1-receptor with intravenous fenoldopam produces a rapid and sustained reduction in blood pressure, in contrast to the tachyphylaxis seen in some rat models. 3 Activation of the DA2-receptor also represents a viable antihypertensive approach, based on the chronic efficacy of hydergine. However, none of the recently developed selective DA2-receptor agonists has been shown to reduce blood pressure in man. 4 Since animal experiments suggest qualitatively different antihypertensive profiles for quinpirole and SK&F 101468, both presumed to be selective agonists at the DA2-receptor, it may be possible to design new DA2-receptor agonists more effective as antihypertensive drugs. 5 Dopamine receptors at different sites, even if of the same subtype, can be differentially regulated; this may be a consequence of activation of multiple second messenger systems by receptor occupation. PMID:1980080

Hieble, J. P.; Eden, R. J.; de Mey, C.

1990-01-01

183

Lembranías da Companhia dramática Nacional  

E-print Network

SPRING 1984 81 Lembranças da Companhia Dramática Nacional Aldo Cal vet Em junho do corrente ano fez 30 anos que se realizou no Rio de Janeiro, então capital da República, uma iniciativa oficial meritoria a cargo do Serviço Nacional de Teatro do... Ministerio da Educação e Cultura. Pela primeira vez na historia do teatro do Brasil foi posto em atividade um organismo de inteira responsabilidade do Governo com a finalidade precípua de recrutar elementos nos diversos segmentos das artes cénicas e levar...

Calvet, Aldo

1984-04-01

184

Overview of ATLAS PanDA Workload Management  

SciTech Connect

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

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

2011-01-01

185

Overview of ATLAS PanDA Workload Management  

NASA Astrophysics Data System (ADS)

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

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

2011-12-01

186

[Robot-assisted surgery].  

PubMed

Computer-enhanced surgical systems are becoming common worldwide. Currently, 331 da Vinci surgical systems have been installed. Robotic surgery was successfully performed on more than 20,000 patients in 2004. Intuitive Surgical has received FDA clearance for laparoscopic and thoracoscopic procedures, including hysterectomy or prostatectomy, as well as cardiac revascularization. The Japanese "Future Project" team has developed a prototype of a smaller surgical robotic system and successfully performed telesurgery on animals between Tokyo and Fujinomiya on August 8, 2002, and between Fukuoka and Seoul on March 2, 2005. Robotic surgery will lead to dramatic progress in medicine with the development of surgical navigation systems, simulation systems, and telementoring systems. PMID:16304816

Hashizume, Makoto

2005-11-01

187

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.

188

O comportamento da ionosfera monitorado no ROI atravs de: Sondagens VLF feitas com dois receptores distintos, um AWESOME da Universidade de Stanford e  

E-print Network

­ Chile Punta Arenas ­ Chile Trelew ­ Argentina São José dos Campos ­ Brazil Single channel Riometer: São Martinho da Serra ­ Brazil Concepcion ­ Chile Punta Arenas ­ Chile Trelew ­ Argentina São José Atmospheric Weather Electromagnetic System for Observation Modeling and Education (AWESOME, foto da esquerda

189

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.

190

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA  

E-print Network

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA RESIDENZA UNIVERSITARIA BIOMEDICA PAVIA Biomedica (di seguito Residen- za) della Fondazione Collegio Universitario S. Caterina da Siena (di seguito

Segatti, Antonio

191

PD2P: PanDA Dynamic Data Placement for ATLAS  

NASA Astrophysics Data System (ADS)

The PanDA (Production and Distributed Analysis) system plays a key role in the ATLAS distributed computing infrastructure. PanDA is the ATLAS workload management system for processing all Monte-Carlo (MC) simulation and data reprocessing jobs in addition to user and group analysis jobs. The PanDA Dynamic Data Placement (PD2P) system has been developed to cope with difficulties of data placement for ATLAS. We will describe the design of the new system, its performance during the past year of data taking, dramatic improvements it has brought about in the efficient use of storage and processing resources, and plans for the future.

Maeno, T.; De, K.; Panitkin, S.

2012-12-01

192

PanDA Beyond ATLAS: Workload Management for Data Intensive Science  

E-print Network

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

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

2013-01-01

193

Electronic Journal of Statistics Vol. 7 (2013) 20052031  

E-print Network

Piazza Leonardo da Vinci, 32, 20133, Milano, Italy e-mail: piercesare.secchi@polimi.it Aymeric Stamm IRISA, University of Rennes I UMR CNRS-6074, Campus de Beaulieu, F-35042 Rennes, France e-mail: aymeric

Boyer, Edmond

2013-01-01

194

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

195

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

196

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

197

Robot-Assisted Gynecologic Surgery  

MedlinePLUS

... help with the da Vinci or the blood flow, or both, or neither. Great observation and great ... think it maintains good cerebral profusion, good blood flow to the vital organs. It’s almost counterintuitive when ...

198

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

199

Invent the Future TheTransformative Power  

E-print Network

of history's greatest thinkers, Leonardo da Vinci and Michelangelo, excelled in this intel- lectual landscape engineering. Michelangelo, whose masterpieces include the Pietá, the David, and the Sistine Chapel ceiling

Virginia Tech

200

Teaching a robot what to do by showing in virtual reality how to solve the task: a new game is ready?  

E-print Network

is ready? Giuseppina Gini, DEI, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano, Italy gini ... In the poster we will show some of our virtual world (at present developed for nuclear inspection

Gini, Giuseppina

201

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...

202

Reitor da "nova" Universidade de Lisboa toma posse CERIMNIA O primeiro reitor da "nova" Universidade  

E-print Network

Reitor da "nova" Universidade de Lisboa toma posse CERIM�NIA O primeiro reitor da "nova" Universidade de Lisboa (UL), António Cruz Serra, tomou ontem posse numa cerimónia, na Reitoria da universidade. �nico candidato a reitor para este arranque da instituição que resultou da fusão da Clássica com

Instituto de Sistemas e Robotica

203

The DaCHS Multi-protocol VO Server  

NASA Astrophysics Data System (ADS)

GAVO's Data Center Helper Suite (DaCHS) is a suite of tools for publishing data to the Virtual Observatory. It implements all major VO protocols (SCS, SIAP, SSAP, TAP, OAI-PMH). The integrated management and ingestion component allow defining metadata, structure, and services once and re-use the definition throughout the publication cycle from initial metadata aquisition to registry record generation. It has been driving GAVO's data center since 2008 and is now deployed in multiple locations around the globe. This poster briefly describes the design of the system as well as a bird's-eye view of data publishing with DaCHS.

Demleitner, M.

2014-05-01

204

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.

205

Exploring Leonardo  

NSDL National Science Digital Library

This is an online exhibit, created by the Boston Museum of Science, on Leonardo da Vinci, with references and activities about both is scientific and artistic work. The page features an inventor's workshop, perspectives on Leonardo da Vinci and additional resources on this topic. The resources consist of: letters to teachers, a glossary, a bibliography and image credits and permissions. This is a great resource for students or instructors looking for additional information or resources on this great mind.

206

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

E-print Network

. 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... . . . 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...

Burke, Andrew Reid

1993-01-01

207

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

208

PanDA's Role in ATLAS Computing Model Evolution  

E-print Network

During Run 1 at the Large Hadron Collider from 2009-2013, the ATLAS experiment successfully met the computing challenge of accumulating, managing and analyzing a volume of data now exceeding 140 PB, processed at over 100 sites around the world, and accessed by thousands of physicists. This accomplishment required nimbleness and flexibility in the distributed computing infrastructure, both hardware and software, as the operational computing model evolved during the run based on experience. A critical enabler for this evolution was PanDA, the ATLAS workload management system used for production and distributed analysis. PanDA's capabilities were utilized and extended to dynamically and intelligently distribute data and processing workloads across ATLAS resources based on data popularity and resource availability, thereby 'flattening' an originally hierarchical computing model, in order to use resources more efficiently. A new round of PanDA development now taking place will continue to evolve the model for bett...

Maeno, T; The ATLAS collaboration

2014-01-01

209

PRESIDNCIA DA REPBLICA CONTROLADORIA-GERAL DA UNIO  

E-print Network

CIDADE : S�O JOSE DOS CAMPOS RELAT�RIO Nº : 208934 UCI EXECUTORA : 170152 RELAT�RIO DE AUDITORIA Chefe da-estrutura mantida - unidade 3 3 2462 - Desenvolvimento de Satélites Modelo de satélite ou experimento desenvolvido

Domingues, Margarete Oliveira

210

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

211

The ATLAS PanDA Pilot in Operation  

NASA Astrophysics Data System (ADS)

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

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

2011-12-01

212

Construção de um catálogo de aglomerados abertos para estudo da dinâmica da estrutura espiral da Galáxia  

NASA Astrophysics Data System (ADS)

Os aglomerados abertos são objetos de grande valor para o estudo da dinâmica da Galáxia devido esses objetos terem uma faixa de idade relativamente ampla. O trabalho visa estudar a dinâmica da estrutura espiral da Galáxia principalmente através do uso desses aglomerados, uma vez que o estudo da cinemática desses objetos é fundamental para esse objetivo. Nosso grupo trabalha no sentido de construir uma base de dados de aglomerados abertos contendo coordenadas, distância, idade, movimentos próprios e velocidades radiais e já disponibiliza uma nova versão do catálogo de aglomerados abertos o qual é uma compilação de edições anteriores, principalmente Lynga (1987), Mermilliod (1995) e ESO-B (Lauberts 1982). Nossa amostra possui cerca de 1630 aglomerados, mas nem todos os parâmetros acima citados foram determinados em sua totalidade. Para determinarmos esses parâmetros, derivamos as cores intrínsecas das estrelas membro de cada aglomerado a partir de seus tipos espectrais (busca feita no SIMBAD) obtendo assim o excesso de cor individual. A distribuição dos excessos de cor foi então utilizada para derivarmos o avermelhamento médio para cada aglomerado. De maneira similar, os tipos espectrais foram usados para estimar as magnitudes absolutas, e com as magnitudes absolutas e aparentes determinamos a respectiva distribuição do módulo de distância e finalmente a distância. Para determinar as idades foram confeccionados os diagramas cor-magnitude das estrelas de cada aglomerado onde foram superpostas a Seqüência Principal de Idade Zero (ZAMS). Superpomos a ZAMS de Schmidt-Kaler e isócronas de composição solar. Essas isócronas foram usadas para determinação das idades dos aglomerados. Uma vez que não temos ainda resultados finais, apresentamos então alguns diagramas cor-magnitude os quais foram usados para determinação, principalmente, da distância e idade dos aglomerados.

Carlos, I. M.; Lépine, J. R. D.

2003-08-01

213

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA  

E-print Network

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA RESIDENZA UNIVERSITARIA BIOMEDICA PAVIA Biomedica (di seguito Residen- za) della Fondazione Collegio Universitario S. Caterina da Siena (di seguito, Biotecnologie, Biotecnologie mediche e farmaceutiche, Ingegneria biomedica, Far- macia, Chimica e tecnologia

Segatti, Antonio

214

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA  

E-print Network

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA RESIDENZA UNIVERSITARIA BIOMEDICA PAVIA Biomedica (di seguito Residen- za) della Fondazione Collegio Universitario S. Caterina da Siena (di seguito farmaceutiche, Ingegneria biomedica, Farmacia, Chimica e tecnologia farmaceutiche, Scienze e tecniche delle atti

Segatti, Antonio

215

PERSPECTIVAS DA AGROENERGIA NO BRASIL  

Microsoft Academic Search

Este texto tem por objetivo fazer uma revisão do estágio atual da produção mundial de biocombustíveis, das políticas adotadas nos vários países e das perspectivas de inserção do Brasil neste processo como produtor e exportador de biocombustíveis, conciliando isto com o desenvolvimento econômico e social e com o respeito ao meio-ambiente. Os autores destacam a necessidade de conciliação das ações

Carlos Eduardo de Freitas Vian; Walter Belik; Luiz Fernando Paulillo; Leandro Menegon Corder

2008-01-01

216

Jornal da Madeira.pt Pas: Portugal  

E-print Network

Jornal da Madeira.pt País: Portugal Period.: Diária �mbito: Online Pag.: 1 de 2ID: 41147738 06 Câmara do Funchal encerram bar polémico na Mary Jane Wilson Congresso e conferência sobre os "500 anos da dos principais produtos abaixo da média da UE 27 em 2010 Comerciante madeirense em Caracas morto

Instituto de Sistemas e Robotica

217

Ministrio da Cincia e Tecnologia Instituto Nacional de Pesquisas Espaciais  

E-print Network

Ministério da Ciência e Tecnologia Instituto Nacional de Pesquisas Espaciais Plano Diretor 2011 Departamento de Ciência e Tecnologia Aeroespacial DEGRAD Sistema de monitoramento da degradação florestal na da exploração seletiva da floresta Amazônica ETE Coordenação Geral de Engenharia e Tecnologia

218

DISSERTAO DE MESTRADO ANLISE DA TRANSFORMADA  

E-print Network

TECNOLOGIA #12;#12;UNIVERSIDADE DE BRASILIA Faculdade de Tecnologia DISSERTAÇÃO DE MESTRADO ANÁLISE DA mestrado submetida ao Departamento de Engenharia Elétrica da Faculdade de Tecnologia da Universidade de Sinais, 2009). Dissertação de Mestrado. Universidade de Brasília. Faculdade de Tecnologia. Departamento

de Queiroz, Ricardo L.

219

The Future of PanDA in ATLAS Distributed Computing  

E-print Network

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

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

2015-01-01

220

ESTUDO DA VARIAÇÃO DA DENSIDADE BÁSICA DA MADEIRA DE Eucalyptus alba REIW E Eucalyptus saligna SMITH  

Microsoft Academic Search

1 - INTRODUÇÃO Na determinação das qualidades da madeira, a densidade é o índice mais simples e mais utilizado. Correlaciona-se diretamente com o rendimento em fibras das madeiras normalmente empregadas nas indústrias de celulose e papel, e também com as propriedades físico-mecânicas podendo, em última análise, ser usada para determinar os fins para os quais a madeira pode ser utilizada.

Mário Ferreira

221

Relatrio da Comisso de planejamento da instalao do Centro de Pesquisas Fsicas da URGS  

E-print Network

NO BRASIL Em São Paulo e no Rio de Janeiro, junto às Faculdades de Filosofia ofi- ciais, iniciaram-se os Centro Brasileiro de Pesquisas Físicas, no Rio de Janeiro, em 1949, deu ensejo a um maior congraçamento no Relatório da Direção do IF-UFRGS, referente ao exercício de 1969. Pôrto Alegre, 27 de janeiro de 1953. No

dos Santos, C.A.

222

Spectroscopic analysis of DA white dwarfs from the McCook & Sion catalog  

E-print Network

For some years now, we have been gathering optical spectra of DA white dwarfs in an effort to study and define the empirical ZZ Ceti instability strip. However, we have recently expanded this survey to include all the DA white dwarfs in the McCook & Sion catalog down to a limiting visual magnitude of V=17.5. We present here a spectroscopic analysis of over 1000 DA white dwarfs from this ongoing survey. We have several specific areas of interest most notably the hot DAO white dwarfs, the ZZ Ceti instability strip, and the DA+dM binary systems. Furthermore, we present a comparison of the ensemble properties of our sample with those of other large surveys of DA white dwarfs, paying particular attention to the distribution of mass as a function of effective temperature.

A. Gianninas; P. Bergeron; M. T. Ruiz

2008-10-29

223

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

Federal Register 2010, 2011, 2012, 2013, 2014

...instead of a traditional mechanical control system on the model DA-40NG airplane...certification requirements for engine control systems are driven by 14 CFR part 33 certification...and data failures on the engine control system, and the resulting effects...

2011-09-07

224

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

Federal Register 2010, 2011, 2012, 2013, 2014

...instead of a traditional mechanical control system on the model DA-40NG airplane...certification requirements for engine control systems are driven by 14 CFR part 33 certification...and data failures on the engine control system, and the resulting effects...

2011-11-22

225

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

PubMed

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

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

2014-06-01

226

Robotic rectosigmoidectomy - pioneer case report in Brazil. Current scene in colorectal robotic surgery.  

PubMed

Laparoscopic colorectal surgery is believed to be technically and oncologically feasible. Robotic surgery is an attractive mode in performing minimally-invasive surgery once it has several advantages if compared to standard laparoscopic surgery. The aim of this paper is to report the first known case of colorectal resection surgery using the robotic assisted surgical device in Brazil. A 35-year-old woman with deep infiltrating endometriosis with rectal involvement was referred for colorectal resection using da Vinci surgical system. The authors also reviewed the most current series and discussed not only the safety and feasibility but also the real benefits of robotic colorectal surgery. PMID:20520984

Averbach, Marcelo; Popoutchi, Pedro; Marques Jr, Oswaldo Wiliam; Abdalla, Ricardo Z; Podgaec, Sérgio; Abrão, Maurício Simões

2010-01-01

227

Recombinant 43-kDa USF binds to DNA and activates transcription in a manner indistinguishable from that of natural 43/44-kDa USF.  

PubMed Central

USF is a cellular factor involved in the transcriptional regulation of several cellular and viral promoters. Purified USF from HeLa cells (HeLa USF) consists of 43- and 44-kDa polypeptides which show independent binding to a specific DNA element. A cDNA encoding the 43-kDa species has been previously cloned. We show here that the purified form of bacterially expressed 43-kDa USF (i) exists in solution as a dimer whose formation is greatly favored under reducing conditions, (ii) binds to its cognate DNA sequence in a manner indistinguishable from that of HeLa USF, and (iii) is as efficient as HeLa USF in stimulating transcription from target promoters in a reconstituted cell-free system. Additional data indicate that the 44-kDa component of HeLa USF is immunologically unrelated to the 43-kDa polypeptide but is associated with it in HeLa cell extracts. These results suggest that the 43-kDa component possesses an intrinsic DNA binding and transcriptional activation potential and that the 44-kDa USF component of the natural USF complex may have some regulatory role. Images PMID:1922036

Pognonec, P; Roeder, R G

1991-01-01

228

75 FR 64711 - Privacy Act of 1974; System of Records  

Federal Register 2010, 2011, 2012, 2013, 2014

...Defense. KEUR.07 System Name: Postal Directory File (February 22, 1993; 58 FR 10562...cards (DA Form 3955), comprising a directory of individuals assigned, en route...termination/revocation date of designation. Directory locator cards (DA Form 3955) are...

2010-10-20

229

Lifelong learning: a human becoming perspective.  

PubMed

Michael Gelb, in a book titled How to Think Like Leonardo Da Vinci, identifies Leonardo Da Vinci as one of the most fascinating geniuses of all time. From an extensive study of Leonardo Da Vinci's life and works, Gelb has discerned seven Da Vincian principles depicting Leonardo's disciplined approach to seeking knowledge and inventing anew. In this column, Parse's theory of human becoming is linked with these seven Da Vincian principles providing a nursing theory perspective on lifelong learning. Both the human becoming theory and the Da Vincian principles focus on human possibility and the living of hopes and dreams. Linking the Da Vincian principles with human becoming provides new insights for engaging in a professional and personal postmodern Renaissance. PMID:12387226

Bunkers, Sandra Schmidt

2002-10-01

230

76 FR 12627 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Identifier 2011-CE-002-AD] RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation...

2011-03-08

231

A Pilot Study of Surgical Training Using a Virtual Robotic Surgery Simulator  

PubMed Central

Background and Objectives: Our objectives were to compare the utility of learning a suturing task on the virtual reality da Vinci Skills Simulator versus the da Vinci Surgical System dry laboratory platform and to assess user satisfaction among novice robotic surgeons. Methods: Medical trainees were enrolled prospectively; one group trained on the virtual reality simulator, and the other group trained on the da Vinci dry laboratory platform. Trainees received pretesting and post-testing on the dry laboratory platform. Participants then completed an anonymous online user experience and satisfaction survey. Results: We enrolled 20 participants. Mean pretest completion times did not significantly differ between the 2 groups. Training with either platform was associated with a similar decrease in mean time to completion (simulator platform group, 64.9 seconds [P = .04]; dry laboratory platform group, 63.9 seconds [P < .01]). Most participants (58%) preferred the virtual reality platform. The majority found the training “definitely useful” in improving robotic surgical skills (mean, 4.6) and would attend future training sessions (mean, 4.5). Conclusion: Training on the virtual reality robotic simulator or the dry laboratory robotic surgery platform resulted in significant improvements in time to completion and economy of motion for novice robotic surgeons. Although there was a perception that both simulators improved performance, there was a preference for the virtual reality simulator. Benefits unique to the simulator platform include autonomy of use, computerized performance feedback, and ease of setup. These features may facilitate more efficient and sophisticated simulation training above that of the conventional dry laboratory platform, without loss of efficacy. PMID:23925015

Tergas, Ana I.; Sheth, Sangini B.; Green, Isabel C.; Giuntoli, Robert L.; Winder, Abigail D.

2013-01-01

232

OBEX performance evaluation and parameter optimization for high speed IrDA links  

Microsoft Academic Search

OBEX is a session protocol designed to transmit data objects between resource-limited devices. It has been adopted as the framework for object exchange for wireless transports including IrDA and Bluetooth. A mathematical analysis for OBEX throughput-over the IrDA protocol stacks is carried out in this paper. OBEX maximum packet size and turnaround time are optimized for the system throughput. Numerical

Pi Huang; A. C. Boucouvalas

2004-01-01

233

Plinio Marcos, dramaturgo da violencia.  

E-print Network

dizer que Dois Perdidos numa Noite Suja valia varios sermoes. Terá, entáo, essa obra, algum substrato religioso? Ou conhecida sua posicao, coin cidente com a de grande número de estudantes aos quais está Plínio Marcos ligado—será que sua obra está... numerosa do que a publicada em Hvro. Procuraremos a seguir rastrear a tónica da violencia, tomada de inicio como urna atitude em relacao á vida, considerados tanto o autor como os seus personagens, fundidos na mesma massa de acusagáo que fez um crítico...

Pontes, Joel

1969-10-01

234

Characterization of the catalytic residues of the tobacco etch virus 49-kDa proteinase.  

PubMed

The 49-kDa proteinase of tobacco etch virus (TEV) cleaves the polyprotein derived from the TEV genomic RNA at five locations. Molecular genetic and biochemical analyses of the 49-kDa TEV proteinase were performed to test its homology to the cellular trypsin-like serine proteases. A cDNA fragment, containing the TEV 49-kDa proteinase gene and flanking sequences, was expressed in a cell-free transcription/translation system and resulted in the formation of a polyprotein precursor that underwent rapid self-processing. Site-directed mutagenesis was used to test the effect of altering individual 49-kDa amino acid residues on proteolysis. The data suggest that the catalytic triad of the TEV 49-kDa proteinase could be composed of the His234, Asp269, and Cys339. These findings are consistent with the hypothesis that the TEV 49-kDa proteinase is structurally similar to the trypsin-like family of serine proteinases with the substitution of Cys339 as the active site nucleophile. A structural model of the TEV 49-kDa proteinase proposes other virus-specific differences in the vicinity of the active site triad and substrate-binding pocket. The structure may explain the observed negligible effect of most cellular proteinase inhibitors on the activity of this viral proteinase. PMID:2475971

Dougherty, W G; Parks, T D; Cary, S M; Bazan, J F; Fletterick, R J

1989-09-01

235

The fraction of double degenerates among DA white dwarfs  

E-print Network

We present the results of a radial velocity survey designed to measure the fraction of double degenerates among DA white dwarfs. The narrow core of the H-alpha line was observed twice or more for 46 white dwarfs yielding radial velocities accurate to a few km/s. This makes our survey the most sensitive to the detection of double degenerates undertaken to date. We found no new double degenerates in our sample, though H-alpha emission from distant companions is seen in two systems. Two stars known to be double degenerates prior to our observations are included in the analysis. We find a 95% probability that the fraction of double degenerates among DA white dwarfs lies in the range [0.017,0.19].

P. F. L. Maxted; T. R. Marsh

2000-05-23

236

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA  

E-print Network

FONDAZIONE COLLEGIO UNIVERSITARIO S. CATERINA DA SIENA RESIDENZA UNIVERSITARIA BIOMEDICA P A V I e studenti da usufruirsi presso la Residenza Universitaria Biomedica in via Giulotto 12 al Polo preferenziali, stu- dentesse e studenti non di area biomedica che abbiano già ef- fettuato un percorso

Segatti, Antonio

237

Universidade Federal Fluminense AES DA COORDENAO DE PESSOAL DOCENTE  

E-print Network

Universidade Federal Fluminense #12;AÇÕES DA COORDENAÇÃO DE PESSOAL DOCENTE Universidade Federal docentes nas unidades acadêmicas. #12;AÇÕES DA COORDENAÇÃO DE PESSOAL DOCENTE Universidade Federal Universidade Federal Fluminense #12;AÇÕES DA DIVISÃO DE GESTÃO DE LOTAÇÃO DOCENTE Universidade Federal

Souza, Max O.

238

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

239

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

PubMed

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

Quintela, Maria Manuel

2011-04-01

240

Primeiro reitor da Universidade de Lisboa empossado hoje  

E-print Network

Primeiro reitor da Universidade de Lisboa empossado hoje O primeiro reitor da Universidade de resulta da fusão da Clássica com a Técnica e que se pretende "virada para o mundo". No primeiro ano da UL, será o reitor de um dos maiores estabelecimentos de ensino superior da Península Ibérica, com

Instituto de Sistemas e Robotica

241

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

242

Robotic-assisted transoral removal of a bilateral floor of mouth ranulas  

PubMed Central

Objective To describe the management of bilateral oral ranulas with the use of the da Vinci Si Surgical System and discuss advantages and disadvantages over traditional transoral resection. Study Design Case Report and Review of Literature. Results A 47 year old woman presented to our service with an obvious right floor of mouth swelling. Clinical evaluation and computerized tomography scan confirmed a large floor of mouth ranula on the right and an incidental asymptomatic early ranula of the left sublingual gland. After obtaining an informed consent, the patient underwent a right transoral robotic-assisted transoral excision of the ranula and sublingual gland with identification and dissection of the submandibular duct and lingual nerve. The patient had an excellent outcome with no evidence of lingual nerve paresis and a return to oral intake on the first postoperative day. Subsequently, the patient underwent an elective transoral robotic-assisted excision of the incidental ranula on the left sublingual gland. Conclusion We describe the first robotic-assisted excision of bilateral oral ranulas in current literature. The use of the da Vinci system provides excellent visualization, magnification, and dexterity for transoral surgical management of ranulas with preservation of the lingual nerve and Wharton's duct with good functional outcomes. However, the use of the robotic system for anterior floor of mouth surgery in terms of improved surgical outcomes as compared to traditional transoral surgery, long-term recurrence rates, and cost effectiveness needs further validation. PMID:21767364

2011-01-01

243

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

244

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

245

Present status of clinical studies of Fluosol-DA (20%) in Japan.  

PubMed

Fluosol-DA (20%) is a fine-particle stable emulsion with low toxicity and rapid elimination from the body. Based on comprehensive animal experiments and phase one human studies, Fluosol-DA (20%) has been given clinically to 401 patients in Japan. In 270 of these patients, it was given to treat severe hemorrhage, and in 131, it was given to improve impaired cerebral circulation or for other nonhemorrhagic indications. In these studies, Fluosol-DA (20%) was effective as a blood gas carrier as well as a plasma expander. After infusion of 20 ml of Fluosol-DA (20%) per kilogram of body weight, while maintaining the FIO2 at or near 0.5 or 0.6, PFCs transport an amount of oxygen equivalent to approximately 6.3 +/- 1.4% of the oxygen transported by the hemoglobin phase and approximately 100% of the oxygen transported by plasma. The arteriovenous oxygen difference in the PFC phase was approximately 25 to 30% of that in the hemoglobin phase. Of the oxygen consumed by the tissues, approximately 17% was provided by the PFC phase after treatment with Fluosol-DA (20%). Hemodynamic parameters of patients with hemorrhage were either maintained or recovered to normal levels after Fluosol-DA (20%) infusion. No acute or chronic untoward reactions were observed either early or late after infusion of Fluosol-DA (20%), except for a transient decrease in neutrophils and platelets after the initial administration of a test dose of 1 ml, and these parameters recovered spontaneously in 30 minutes. No abnormal findings that could be attributed to Fluosol-DA (20%) were found in the heart, lungs, liver, spleen, kidneys, bone marrow, endocrine system, or other organs. Organ retention of PFC particles was evaluated in 6 autopsy cases in Japan. Although PFCs were detected in many organs several months after a single Fluosol-DA (20%) injection of 20 ml per kilogram of body weight, PFCs were not found in body tissues of those who were autopsied more than 7 months after its infusion. RES function was slightly depressed for a few days in patients receiving 20 ml of Fluosol-DA (20%) per kilogram of body weight. It was also depressed for several days in rats given 40 ml per kilogram of body weight. Compared with that of control patients, recovery to preoperative levels was slightly delayed in patients receiving Fluosol-DA (20%). Despite this, administration of up to 20 ml of Fluosol-DA (20%) per kilogram of body weight should be safe with respect to the RES function.(ABSTRACT TRUNCATED AT 400 WORDS) PMID:3980104

Mitsuno, T; Ohyanagi, H

1985-01-01

246

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

247

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

248

Next Generation PanDA Pilot for ATLAS and Other Experiments  

E-print Network

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 Nord...

Nilsson, P; The ATLAS collaboration; Caballero Bejar, J; De, K; Hover, J; Love, P; Maeno, T; Medrano Llamas, R; Walker, R; Wenaus, T

2013-01-01

249

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

250

Current status of robotic surgery in Japan  

PubMed Central

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

2015-01-01

251

Robotic renal transplantation: first European case.  

PubMed

A kidney from a 56-year-old mother was transplanted to her 37-year-old daughter laparoscopically using the daVinci HDSi surgical system. The kidney was introduced into the abdomen through a 7-cm suprapubic incision used also for the uretero-vescical anastomosis. Vascular anastomoses were carried out through a total of three additional ports. Surgery lasted 154 min, including 51 min of warm ischemia of the graft. Urine production started immediately after graft reperfusion. Renal function remains optimal at the longest follow-up of 3 months. The technique employed in this case is discussed in comparison with the only other two contemporary experiences, both from the USA. Furthermore, possible advantages and disadvantages of robotics in kidney transplantation are discussed extensively. We conclude that the daVinci surgical system allows the performance of kidney transplantation under optimal operative conditions. Further experience is needed, but it is likely that solid organ transplantation will not remain immune to robotics. PMID:21091963

Boggi, Ugo; Vistoli, Fabio; Signori, Stefano; D'Imporzano, Simone; Amorese, Gabriella; Consani, Giovanni; Guarracino, Fabio; Melfi, Franca; Mussi, Alfredo; Mosca, Franco

2011-02-01

252

Preliminary experience of the robot-assisted laparoscopic excision of a retroperitoneal mass: A case report  

PubMed Central

The aim of the present study was to report the initial clinical experience of adopting the da Vinci Surgical System (Intuitive Surgical, Inc., Sunnyvale, CA, USA) to perform a retroperitoneal tumor resection. The patient was a 56-year-old female who presented with a five-year history of hypertension. Abdominal dynamic computed tomography (CT) and positron emission tomography-CT scans revealed a mass measuring ~6 cm in diameter that was located anterior to the abdominal aorta, and between the abdominal aorta and the inferior vena cava (at the level of the third lumbar vertebra). The tumor was excised via a five-port, robot-assisted, transperitoneal laparoscopic approach. Careful dissection of the tumor away from the abdominal aorta and the inferior vena cava was accomplished without resulting in major vascular injury. There were no complications and the patient was discharged in a good condition on the eleventh postoperative day. Pathological analysis of a tumor specimen demonstrated a benign pheochromocytoma (PHEO). During the three-month follow-up, no recurrence was identified through CT scans or measurement of the patient’s endocrine hormone levels. Thus, the da Vinci robot-assisted laparoscopic system may be safely employed in the treatment of extra-adrenal PHEOs that occur in difficult locations for which a laparoscopic surgical excision may be challenging. PMID:25360164

LIU, QIN; WANG, XINJING; SHEN, BAIYONG; ZHAO, LIANGCHAO; ZHAN, QIAN; ZHAO, SHULIN; WEN, CHENLEI; DENG, XIAXING; PENG, CHENGHONG; LI, HONGWEI

2014-01-01

253

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

254

Darwinismo e o projeto da Unesco, do Instituto Internacional da Hilia Amaznica (1946-1950)  

E-print Network

países amazônicos, sendo 70 % da área brasileira? O projeto do IIHA estava inserido no centro de um transformado num dos 4 projetos prioritários da instituição. Na segunda reunião geral da Unesco, que teve lugar educação e cultura para os vastos territórios onde exerceria sua ação e num centro de pesquisa científica

Paris-Sud XI, Université de

255

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

PubMed Central

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

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

2013-01-01

256

Ministrio da Educao Universidade Federal do Paran  

E-print Network

2012@ufpr.br Convite A professora Tatiana Dagga, da UTFPR, encaminhou convite para professores e a professora Tatiana, pelo e- mail tatianadagga@utfpr.edu.br . Curitiba, 05 de março de 2012. Nadia Gaiofatto

Paraná, Universidade Federal do

257

Ministrio da Educao Universidade Federal do Paran  

E-print Network

2012@ufpr.br Convite A professora Tatiana Dagga, da UTFPR, encaminhou convite para professores e a professora Tatiana, pelo e-mail tatianadagga@utfpr.edu.br . Curitiba, 05 de março de 2012. Nadia Gaiofatto

Paraná, Universidade Federal do

258

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

com o respectivo setor. 1.2 ­ Setor: Ciências Humanas 1.2.1 ­ Departamento: Antropologia Área de Arqueologia, ou Doutorado em Antropologia com Área de Concentração em Arqueologia, obtidos na forma da lei

Paraná, Universidade Federal do

259

PEDRO MIGUEL SERENO O NOVO PRESIDENTE DA AEIST  

E-print Network

PEDRO MIGUEL SERENO � O NOVO PRESIDENTE DA AEIST O aluno de Engenharia do Ambiente sucede a João Costa na presidência da maior AE da nova Universidade de Lisboa. A equipa de Pedro Miguel Sereno, garantir que o processo de formação da nova Universidade é feito no melhor sentido para os estudantes e que

Instituto de Sistemas e Robotica

260

2013-14 Princeton Global Scholar Rava Azeredo da Silveira  

E-print Network

2013-14 Princeton Global Scholar Rava Azeredo da Silveira Rava Azeredo da Silveira is a leading, and creating an emotion. Dr. Azeredo da Silveira was trained in chemistry and physics, which has a long) researcher and a member of the permanent faculty at the Ecole Normale Supérieure (ENS) in Paris, Azeredo da

261

XVI Reunio da Sociedade Brasileira de Cristalografia  

E-print Network

desenvolvimento de novas metodologias é uma característica de todas as áreas da ciência e, em particular da criação de novas linhas. Pode-se destacar nos últimos dois anos a conclusão e entrada em operação do anel existente e a estruturação de uma nova linha, o aperfeiçoamento

Ferreira, Márcia M. C.

262

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO Edital de divulgao de Sesso Pblica para julgamento dos recursos interpostos da 1  

E-print Network

TRIBUNAL REGIONAL FEDERAL DA 1ª REGIÃO Edital de divulgação de Sessão Pública para julgamento dos de Juiz Federal Substituto da 1ª Região O Presidente da Comissão do XIV Concurso Público para Provimento de Cargo de Juiz Federal Substituto da 1ª Região, no uso de suas atribuições, comunica que

Maier, Rudolf Richard

263

75 FR 52292 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes  

Federal Register 2010, 2011, 2012, 2013, 2014

...Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes AGENCY: Federal Aviation Administration...AD) for all Diamond Aircraft Industries GmbH Models DA 40 and DA 40F airplanes. This proposed AD would...

2010-08-25

264

PORTAL DA PESQUISA -MANUAL DO USURIO (v1) 1 -INTRODUO  

E-print Network

PORTAL DA PORTAL DA PESQUISA - MANUAL DO USUÁRIO (v1) ÍNDICE 1 - INTRODU��O 2 - CONCEITO 3 REGISTRO 7 - MODO DE PESQUISA AVAN�ADA 8 - D�VIDAS 9 - EQUIPE PORTAL DA PESQUISA | 1 www.portaldapesquisa.com.br #12;PORTAL DA PORTAL DA PESQUISA - MANUAL DO USUÁRIO (v1) 1 - 2 - INTRODU��O CONCEITO A Dot

Paraná, Universidade Federal do

265

Novo Reitor da Universidade de Lisboa reclama medidas urgentes  

E-print Network

Novo Reitor da Universidade de Lisboa reclama «medidas urgentes» António Cruz Serra disse que «as põem em causa a sua sobrevivência» O novo reitor da Universidade de Lisboa (UL), resultante da fusão, na Aula Magna da Reitoria da Universidade de Lisboa, António Cruz Serra disse que «as universidades

Instituto de Sistemas e Robotica

266

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

267

PanDA Pilot Submission using Condor-G: Experience and Improvements  

SciTech Connect

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

2011-01-01

268

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...

269

Translocator protein (18 kDa) (TSPO) as a therapeutic target for neurological and psychiatric disorders  

Microsoft Academic Search

The translocator protein (18 kDa) (TSPO) is localized primarily in the outer mitochondrial membrane of steroid-synthesizing cells, including those in the central and peripheral nervous system. One of its main functions is the transport of the substrate cholesterol into mitochondria, a prerequisite for steroid synthesis. TSPO expression may constitute a biomarker of brain inflammation and reactive gliosis that could be

Rainer Rupprecht; Vassilios Papadopoulos; Gerhard Rammes; Thomas C. Baghai; Jinjiang Fan; Nagaraju Akula; Ghislaine Groyer; David Adams; Michael Schumacher

2010-01-01

270

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

271

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

272

EE 210: CIRCUITS AND DEVICES A/D AND D/A Conversion  

E-print Network

in electronic systems. ADCs are typically used to convert analog signals into digital signals (for example musicEE 210: CIRCUITS AND DEVICES A/D AND D/A Conversion The objectives of this laboratory experience are double. First, students will become familiar with using Analog-to-Digital Converters (ADC). Secondly

Lozano-Nieto, Albert

273

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

274

A INTERNET COMO UM MEIO FACILITADOR DA FORMAÇÃO DE PROFESSORES AO LONGO DA VIDA  

Microsoft Academic Search

1. Introdução Começaremos por enunciar alguns princípios\\/convicções adquiridos ao longo dos anos através de experiências ligadas à Formação de Professores e neste caso no domínio da Tecnologias de Informação e Comunicação (TIC). Poderemos resumir estes princípios\\/convicções da seguinte maneira: - Não é possível manter um sistema educativo actualizado e dinâmico sem que os professores e outros agentes intervenientes no processo

Maria José Machado

275

Dopamine system: manager of neural pathways.  

PubMed

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

276

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

277

76 FR 27861 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG...  

Federal Register 2010, 2011, 2012, 2013, 2014

...39-16694; AD 2011-10-13] RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation...

2011-05-13

278

4 AutoDaMa: On the Feasibility of Secure and Tailor-made Automotive Data Management  

E-print Network

Custom tailor-made database management systems (DBMS) are an essential asset, especially for embedded systems. The continuously increasing amount of data in automotive systems and the growing network of embedded devices can profit from DBMS. Restrictions in terms of processors, memory, and storage require customizable DBMS that contain only the needed functionality. We present AutoDaMa, a customizable DBMS designed for automotive systems. With AutoDaMa, it is possible to generate tailor-made DBMS for different scenarios, e.g., by restricting the storage size of the DBMS or adding security-related features such as asymmetric and symmetric encryption. We demonstrate the feasibility of our approach through applying different tailormade DBMS versions derived from AutoDaMa in an automotive

Thomas Thüm; Ro Schulze; Mario Pukall; Gunter Saake; Fakultät Für Informatik; Thomas Thüm; Ro Schulze; Mario Pukall; Gunter Saake; Elektronische Zeitschriftenreihe; Otto-von-guericke-universität Magdeburg; Der Dekan; Otto-von-guericke-universität Magdeburg; Thomas Thüm; Ro Schulze; Mario Pukall; Gunter Saake

279

Uniform remote control of front end processors in PAN-DA  

SciTech Connect

The PAN-DA data acquisition software system encompasses support for a variety of front end processors including the Struck General Purpose Master (GPM), the Fermilab Smart Crate Controller (FSCC), and the Motorola MVME133-A VME single board computer. PAN-DA provides support for the remote control of these processors through its Remote Procedure eXecution (RPX) software. This software runs over serial lines, and in some PAN-DA environments, over the Ethernet and TCP/IP as well. Experiments E791 and E771 have successfully used RPX software in both FSCC software development and data collection during the 1990--1991 fixed target run at Fermilab. RPX software has facilitated development and testing of the Fermilab Silicon Strip Detector readout system, for which the FSCC is an integral component. RPX based control and monitoring of the GPM and the MVME133-A are essential parts of the PAN-DA data acquisition system used by E687 and E773 during the 1990--1991 run. 6 refs., 2 figs.

Berg, D.; Berman, E.; MacKinnon, B.; Nicinski, T.; Oleynik, G.; Petravick, D.; Pordes, R.; Sergey, G.; Slimmer, D.; Streets, J.; White, V.

1991-06-01

280

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...

281

DA495 - an aging pulsar wind nebula  

E-print Network

We present a radio continuum study of the pulsar wind nebula (PWN) DA 495 (G65.7+1.2), including images of total intensity and linear polarization from 408 to 10550 MHz based on the Canadian Galactic Plane Survey and observations with the Effelsberg 100-m Radio Telescope. Removal of flux density contributions from a superimposed \\ion{H}{2} region and from compact extragalactic sources reveals a break in the spectrum of DA 495 at 1.3 GHz, with a spectral index ${\\alpha}={-0.45 \\pm 0.20}$ below the break and ${\\alpha}={-0.87 \\pm 0.10}$ above it (${S}_\

R. Kothes; T. L. Landecker; W. Reich; S. Safi-Harb; Z. Arzoumanian

2008-07-08

282

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...

283

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

284

78 FR 61345 - Privacy Act of 1974; System of Records  

Federal Register 2010, 2011, 2012, 2013, 2014

...the Secretary of Defense proposes to alter a system of records, DA&M 01, entitled ``Civil Liberties Program Case Management...OSD Federal Register Liaison Officer, Department of Defense. DA&M 01 System name: Civil Liberties Program Case Management...

2013-10-03

285

SECRETARIA DE ASSISTNCIA ESTUDANTIL Rua Paulo Gama n. 110, Prdio 12105, Ex. Prdio da Filosofia, Anexo 1 da Reitoria  

E-print Network

_____________________________________________________________________________________________________ Rua Paulo Gama nº. 110, Prédio 12105, Ex. Prédio da Filosofia, Anexo 1 da Reitoria CEP 90040-060 Porto _____________________________________________________________________________________________________ Rua Paulo Gama nº. 110, Prédio 12105, Ex. Prédio da Filosofia, Anexo 1 da Reitoria CEP 90040-060 Porto _____________________________________________________________________________________________________ Rua Paulo Gama nº. 110, Prédio 12105, Ex. Prédio da Filosofia, Anexo 1 da Reitoria CEP 90040-060 Porto

Mendes, Luis Gustavo Doninelli

286

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

287

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

Microsoft Academic Search

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

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

2011-01-01

288

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

289

www.biblio.polimi.it Il Sistema bibliotecario  

E-print Network

da Vinci (1452 - 1519) progetto grafico D. Ferretti #12;C'è differenza tra diritto d'autore e del 1941 e successive modifiche. ** in copertina particolare tratto dal Codice Atlantico di Leonardo da parte dell'autore o dell'editore/eredi (ovvero del titolare dei diritti economici). Per i giornali

290

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

291

MINISTRIO DA CINCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS  

E-print Network

i MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS RELATÓRIO DE GESTÃO DO INPE ANO 2001 Unidade Gestora NATAL - RN #12;ii MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS CENTRO REGIONAL

Domingues, Margarete Oliveira

292

SERVIO PBLICO FEDERAL MINISTRIO DA EDUCAO  

E-print Network

tendo em vista a disponibilidade de uma bolsa do Programa LExS Platinum Award destinada a estudante de (LExS Platinum Award). 1.2 Será concedida uma bolsa para mestrado de pesquisa ("research master") para nacionalidade brasileira; II- estar regularmente matriculado em curso de Mestrado da UFSC, nos Programas de Pós

Floeter, Sergio Ricardo

293

SERVIO PBLICO FEDERAL MINISTRIO DA EDUCAO  

E-print Network

Leiden e tendo em vista a disponibilidade de uma bolsa do Programa LExS Platinum Award destinada (LExS Platinum Award). 1.2 Será concedida uma bolsa para mestrado de pesquisa ("research master") para nacionalidade brasileira; II- estar regularmente matriculado em curso de Mestrado da UFSC, nos Programas de PG

Floeter, Sergio Ricardo

294

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

respectivo setor. 1.2 - Setor: Ciências Biológicas 1.2.1 ­ Departamento: Patologia Básica Área de Conhecimento: Patologia Molecular Humana Processo: 23075.041024/2014-54 Número de vagas: 01 (uma) Número limite, ou Microbiologia, ou Parasitologia e Patologia, obtidos na forma da lei. Tipos de Provas: Escrita

Paraná, Universidade Federal do

295

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

.1. Departamento de Biologia Celular Área de Conhecimento: Biologia Tecidual Matéria Específica: Biologia Tecidual de concentração: Biologia Celular, Tecidual ou nas áreas afins: Histologia, Ciências Biológicas, Patologia, Ciências da Saúde, Ciências Morfofuncionais, Biologia Funcional e Biologia Estrutural, obtidas na

Paraná, Universidade Federal do

296

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

.1.4 ­ Departamento: Biologia Celular Área de Conhecimento: Biologia Tecidual Processo: 23075.053964/2013-13 Número de Concentração: Ciências Morfológicas, ou Histologia, ou Biologia Celular e Molecular, ou Biologia Tecidual, ou, ou Biologia Estrutural, obtidos na forma da lei. Tipos de Provas: Escrita (classificatória e

Paraná, Universidade Federal do

297

Ministrio da Educao Universidade Federal do Paran  

E-print Network

(Depto/Setor) Departamento de Biologia Celular - Setor Ciências Biológicas Área temática do Programa convencionais e virtuais sobre Biologia aplicada (ênfase em higiene e saúde); aplicar os materiais produzidos em desenvolvidas As atividades internas serão realizadas no Depto de Biologia Celular - BL da UFPR e as atividades

Paraná, Universidade Federal do

298

MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

GOMES E CIA LTDA CNPJ: 08.853.361/0001-92 Endereço: Rua Tereza Alves, 111 Boa Vista ­ CEP: 84071 DE ABREU GOMES E CIA LTDA CNPJ: 08.853.361/0001-92 #12;MINIST�RIO DA EDUCA��O UNIVERSIDADE FEDERAL DO

Paraná, Universidade Federal do

299

Nanotecnologia farmacêutica aplicada ao tratamento da malária  

Microsoft Academic Search

Apesar do desenvolvimento tecnológico e científico, a malária permanece como um dos maiores problemas de saúde a serem combatidos. As estratégias modernas para o controle da doença prevêem ações conjuntas, como o combate do inseto vetor, diagnóstico rápido e preciso, garantia de terapêutica adequada, redução dos casos de resistência, além do desenvolvimento de novos agentes terapêuticos e vacina e através

Lúcio Figueira Pimentel; Agenor Tavares Jácome Júnior; Vanessa Carla Furtado Mosqueira; Nereide Stela Santos-Magalhães

2007-01-01

300

DINÂMICA DA ESTRATÉGIA LOGÍSTICA EM EMPRESAS BRASILEIRAS  

Microsoft Academic Search

RESUMO O objetivo do artigo é analisar a estratégia logística das empresas brasileiras a partir da mensuração do impacto de diferentes características do negócio sobre as principais decisões de produção e distribuição física de produtos acabados. Foi conduzida uma pesquisa de campo em empresas listadas no Ranking Exame para confrontar as quatro políticas propostas por Pagh e Cooper (1998), derivadas

Peter Fernandes Wanke

301

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Mínima Exigida: Graduação em Biologia, ou Farmácia, ou Biomedicina, ou Medicina, ou Enfermagem; com: Artes 1.2.1.1 ­ Área de Conhecimento: Performance (Sopro ou Percussão) e Tecnologia da Música Processo

Paraná, Universidade Federal do

302

MINISTRIO DA EDUCAO Portugal e ONU criam centro de cincia  

E-print Network

MINIST�RIO DA EDUCA��O Portugal e ONU criam centro de ciência > O ministro da Educação, Nuno Crato Internacional de Lisboa para as ciências funda- mentais no espaço da lu- sofonia. "Este centro é sobretudo uma platafor- ma para a coorde- nação de proje- tos de investiga- ção entre países da CPLP", expli- cou o

Instituto de Sistemas e Robotica

303

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

304

Universidade Federal Fluminense AES DA COORDENAO DE PESSOAL DOCENTE  

E-print Network

DGLD Universidade Federal Fluminense DCQD #12;AÇÕES DA COORDENAÇÃO DE PESSOAL DOCENTE Universidade Federal Fluminense Prof. Paulo Roberto Trales Coodenação da Pró-Reitoria de Gestão de Pessoas (PROGEPE docentes nas unidades acadêmicas. #12;AÇÕES DA COORDENAÇÃO DE PESSOAL DOCENTE Universidade Federal

Souza, Max O.

305

A ROBÓTICA PEDAGÓGICAO COTEXTO DA EDUCAÇÃO IFATIL: AUXILADO O ALFABETISMO  

Microsoft Academic Search

A presente pesquisa expõe um pouco do percurso histórico da robótica aplicada à educação, seu aparecimento, características e benefícios para a aprendizagem, buscando respaldo no Projeto de Inclusão Digital com Robôs, desenvolvido pelo Departamento de Engenharia de Computação e Automação da Universidade Federal do Rio Grande do Norte, para descrever uma das propostas de aplicação da robótica pedagógica no âmbito

Akynara Aglaé; R. S. da Silva; Graças P. Coelho; Renata Pitta Barros; Luiz Marcos; G. Gonçalves

306

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

307

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

Code of Federal Regulations, 2010 CFR

... 2010-07-01 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...

2010-07-01

308

UMA CRÍTICA À TEORIA DA COMPLEXIDADE PROPOSTA POR  

Microsoft Academic Search

Resumo: O escopo de nosso artigo restringe-se à proposição de uma crítica à teoria da complexidade quanto ao seu pressuposto ontológico: realidade complexa e à inalação decorrente de tal pressuposto; a necessidade de uma ciência da complexidade. Essa crítica visa apontar, por um lado, as insuficiências da referida teoria, marcada por um forte apelo metafísico, quando essa pretende estabelecer um

EDGAR MORIN; Érico Andrade

309

32 CFR 516.25 - DA Form 4.  

Code of Federal Regulations, 2012 CFR

...Defense 3 2012-07-01 2009-07-01 true DA Form 4. 516.25 Section 516.25 National...Reporting Legal Proceedings to HQDA § 516.25 DA Form 4. (a) General. The DA Form 4 (See figure C-2, appendix G, of...

2012-07-01

310

Reitor da Universidade de Lisboa reclama "medidas urgentes" para  

E-print Network

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior António Cruz Serra pública, para que as universidades ganhem "mais autonomia administrativa e financeira" O novo reitor da Universidade de Lisboa (UL), resultante da fusão entre a Clássica e a Técnica, falou hoje na necessidade de

Instituto de Sistemas e Robotica

311

Logo creato da Giancarlo Zucconelli UNIVERSITA' DEGLI STUDI DI VERONA  

E-print Network

Logo creato da Giancarlo Zucconelli UNIVERSITA' DEGLI STUDI DI VERONA CENTRO LINGUISTICO DI ATENEO:_______________________________ *Da stampare e compilare a mano. *Tenere un resoconto di ciò che impari durante gli incontri Tandem ti Docente non ne richieda la consegna, ti consigliamo comunque di provare a redigerlo, può servirti da guida

Romeo, Alessandro

312

GUIA DE PREPARAO DA DISSERTAO E RESUMO ALARGADO  

E-print Network

1 GUIA DE PREPARA��O DA DISSERTA��O E RESUMO ALARGADO PARA OS CURSOS DE MESTRADO DE 2º CICLO NO IST ............................................................................................................................. 4 4. ESTRUTURA E FORMATO DA DISSERTA��O.................................................................................. 5 4.1 Impressão da Dissertação

Instituto de Sistemas e Robotica

313

32 CFR 516.25 - DA Form 4.  

Code of Federal Regulations, 2010 CFR

...Defense 3 2010-07-01 2010-07-01 true DA Form 4. 516.25 Section 516.25 National...Reporting Legal Proceedings to HQDA § 516.25 DA Form 4. (a) General. The DA Form 4 (See figure C-2, appendix G, of...

2010-07-01

314

32 CFR 516.25 - DA Form 4.  

Code of Federal Regulations, 2011 CFR

...Defense 3 2011-07-01 2009-07-01 true DA Form 4. 516.25 Section 516.25 National...Reporting Legal Proceedings to HQDA § 516.25 DA Form 4. (a) General. The DA Form 4 (See figure C-2, appendix G, of...

2011-07-01

315

32 CFR 516.25 - DA Form 4.  

Code of Federal Regulations, 2014 CFR

...Defense 3 2014-07-01 2014-07-01 false DA Form 4. 516.25 Section 516.25 National...Reporting Legal Proceedings to HQDA § 516.25 DA Form 4. (a) General. The DA Form 4 (See figure C-2, appendix G, of...

2014-07-01

316

32 CFR 516.25 - DA Form 4.  

Code of Federal Regulations, 2013 CFR

...Defense 3 2013-07-01 2013-07-01 false DA Form 4. 516.25 Section 516.25 National...Reporting Legal Proceedings to HQDA § 516.25 DA Form 4. (a) General. The DA Form 4 (See figure C-2, appendix G, of...

2013-07-01

317

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

318

MINISTRIO DA CINCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS  

E-print Network

1 MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS RELATÓRIO DE GESTÃO DO INPE ANO 2002 Unidade Gestora São José dos Campos - SP #12;2 MINISTÉRIO DA CIÊNCIA E TECNOLOGIA Regimental do MCT (Ministério da Ciência e Tecnologia), em 09.12.2002, através do Decreto n°?3.568, o INPE

Domingues, Margarete Oliveira

319

A reinvenção da sexualidade masculina na paraplegia adquirida  

Microsoft Academic Search

RESUMO Neste trabalho a sexualidade masculina é discutida a partir da condição de um homem com lesão medular. Seu objetivo foi investigar o impacto da paraplegia adquirida na sexualidade masculina. Metodologicamente adotou-se uma aborda- gem qualitativa e coletou-se a história de vida por meio de entrevistas. As princi- pais conclusões apontam para um deslocamento das representações da masculi- nidade associadas

Luiz Carlos Avelino da Silva; Paulo Albertini

2007-01-01

320

Attilio da Empoli’s significance for economic theory  

Microsoft Academic Search

In 1926, at the age of only 22, da Empoli wrote two remarkable, original books, both of which have aroused much interest. Later da Empoli improved and developed their analysis. Other publications followed, such as his lessons in economic science. Others still were in preparation, but his untimely death – at the age of 44 – intervened in 1948. Da

Marcel A. G. van Meerhaeghe

2001-01-01

321

ADVOCACIA-GERAL DA UNIO Concurso pblico para provimento de cargos vagos de Advogado da Unio de 2 Categoria  

E-print Network

Domingues de Carvalho / 10005498, Aloyzio Alves da Costa Neto / 10005223, Alvaro Goncalves Duarte / 10000817 Estima de Souza Leite / 10015656, Andre Luiz Agostinho da Silveira Reis / 10007168, Andre Luiz Cavalcanti

Maier, Rudolf Richard

322

78 FR 15006 - Privacy Act of 1974; System of Records  

Federal Register 2010, 2011, 2012, 2013, 2014

...Administration and Management (DA&M) Mentoring Program. System location: Triple Creek...job series, job grade, feedback on mentoring experience, discussion board posts...provide participants with an automated mentoring system to match learners with...

2013-03-08

323

78 FR 16806 - The Commercial Mobile Alert System  

Federal Register 2010, 2011, 2012, 2013, 2014

...07-287; DA 13-280] The Commercial Mobile Alert System AGENCY: Federal Communications Commission...to change the name of the Commercial Mobile Alert System (CMAS) to Wireless Emergency Alerts (WEA). This is intended to conform the...

2013-03-19

324

EDITAL DE PROCESSO SELETIVO DA 4 TURMA DO CURSO DE ESPECIALIZAO FILOSOFIA DA EDUCAO: TICA, FILOSOFIA POLTICA E EDUCAO.  

E-print Network

EDITAL DE PROCESSO SELETIVO DA 4ª TURMA DO CURSO DE ESPECIALIZA��O FILOSOFIA DA EDUCA��O: �TICA, FILOSOFIA POLÍTICA E EDUCA��O. Conforme Regimento do Curso de Especialização Filosofia da Educação e por em Filosofia, Pedagogia e Professores da Educação Básica das Redes Públicas. 1. Cópias dos Documentos

Paraná, Universidade Federal do

325

Graph Database Systems for Genomics  

Microsoft Academic Search

Genome databases have specific requirements which limit the usefulness of some da- tabase management systems. By using more appropriate database technology, a data- base system can be developed for genome data. We have developed a data representation based on graph theory which captures the highly interconnected structure of genome data. Graphs are a language which can be tailored for describing

Mark Graves; Ellen R. Bergeman; Charles B. Lawrence

1995-01-01

326

Fatores de risco que afetam as complicações da dissecação da veia safena na revascularização cirúrgica do miocárdio  

Microsoft Academic Search

Resumo Objetivo: O problema da cicatrização de feridas é comumente observado após procedimentos de revascularização do miocárdio. Nosso objetivo é determinar a prevalência e os indicadores de complicação na dissecação da veia safena após procedimentos de revascularização coronária. Métodos: Após revisão e aprovação pelo comitê de ética da instituição, uma revisão retrospectiva de 4029 procedimentos de revascularização foi realizada com

Monir Abbaszadeh; MK Arabnia; A. RABBANI; MH Mandegar; S Vahedi

2008-01-01

327

Efeito do silicato de potássio isoladamente ou em mistura com fungicida no controle da requeima da batateira  

Microsoft Academic Search

Este trabalho teve como objetivo avaliar o efeito da aplicação foliar de silicato de potássio, isoladamente ou em mistura com diferentes doses do fungicida, no controle da requeima, causada por Phytophthora infestans, da batateira. O experimento foi conduzido em condições de campo utilizando-se o delineamento em blocos casualizados com 8 tratamentos e 4 repetições. A cultivar de batata usada foi

Henrique da Silva Silveira Duarte; Laércio Zambolim; Fabrício Ávila Rodrigues; Jonas Alberto Rios

2008-01-01

328

Identificac~ao da Doenca de Chagas Baseada em Analise de Sinais de Variabilidade da Frequ^encia Cardiaca  

E-print Network

Identifica¸c~ao da Doen¸ca de Chagas Baseada em An´alise de Sinais de Variabilidade da Frequ¸c~ao A doen¸ca de Chagas afeta severamente a funcionalidade do sistema nervoso. A an´alise de sinais da

Carvalho, João Luiz

329

75 FR 75868 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes  

Federal Register 2010, 2011, 2012, 2013, 2014

...Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes AGENCY: Federal Aviation Administration...the Thielert Engine Owners Group commented that the Model DA 42 has the same door design and the same unsafe...

2010-12-07

330

[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

331

The 31-kDa antigen of Angiostrongylus cantonensis comprises distinct antigenic glycoproteins.  

PubMed

Human angiostrongyliasis results from accidental infection with Angiostrongylus, an intra-arterial nematode. Angiostrongylus cantonensis infections result in eosinophilic meningitis, and A. costaricensis infections cause eosinophilic enteritis. Immunological methodologies are critical to the diagnosis of both infections, since these parasites cannot be isolated from fecal matter and are rarely found in cerebrospinal fluid samples. A. costaricensis and A. cantonensis share common antigenic epitopes which elicit antibodies that recognize proteins present in either species. Detection of antibodies to a 31-kDa A. cantonensis protein present in crude adult worm extracts is a sensitive and specific method for immunodiagnosis of cerebral angiostrongyliasis. The objective of the present work was to isolate and characterize the 31-kDa proteins using soluble protein extracts derived from adult female worms using both one- (1DE) and two-dimensional (2DE) gel electrophoresis. Separated proteins were blotted onto nitrocellulose and probed using sera from infected and non-infected controls. The 31-kDa band present in 1DE gels and the 4 spots identified in 2DE gels were excised and analyzed by electrospray ionization mass spectrometry. Using the highest scores obtained following Mascot analysis, amino acid sequences were obtained that matched four unique proteins: tropomyosin, the 14-3-3 phosphoserine-binding protein, a protein containing a nascent polypeptide-associated complex domain, and the putative epsilon subunit of coatomer protein complex isoform 2. Oxidative cleavage of diols using sodium m-periodate demonstrated that carbohydrate moieties are essential for the antigenicity of all four spots of the 31-kDa antigen. In this article we describe the identification of the 31-kDa antigen, and provide DNA sequencing of the targets. In conclusion, these data suggest that reactivity to the 31-kDa proteins may represent antibody recognition of more than one protein, and recombinant protein-based assays for cerebral angiostrongyliasis diagnosis may require eukaryotic expression systems to maintain antigenicity. PMID:22925026

Morassutti, Alessandra L; Levert, Keith; Perelygin, Andrey; da Silva, Alexandre J; Wilkins, Patricia; Graeff-Teixeira, Carlos

2012-11-01

332

The 31-kDa Antigen of Angiostrongylus cantonensis Comprises Distinct Antigenic Glycoproteins  

PubMed Central

Abstract Human angiostrongyliasis results from accidental infection with Angiostrongylus, an intra-arterial nematode. Angiostrongylus cantonensis infections result in eosinophilic meningitis, and A. costaricensis infections cause eosinophilic enteritis. Immunological methodologies are critical to the diagnosis of both infections, since these parasites cannot be isolated from fecal matter and are rarely found in cerebrospinal fluid samples. A. costaricensis and A. cantonensis share common antigenic epitopes which elicit antibodies that recognize proteins present in either species. Detection of antibodies to a 31-kDa A. cantonensis protein present in crude adult worm extracts is a sensitive and specific method for immunodiagnosis of cerebral angiostrongyliasis. The objective of the present work was to isolate and characterize the 31-kDa proteins using soluble protein extracts derived from adult female worms using both one- (1DE) and two-dimensional (2DE) gel electrophoresis. Separated proteins were blotted onto nitrocellulose and probed using sera from infected and non-infected controls. The 31-kDa band present in 1DE gels and the 4 spots identified in 2DE gels were excised and analyzed by electrospray ionization mass spectrometry. Using the highest scores obtained following Mascot analysis, amino acid sequences were obtained that matched four unique proteins: tropomyosin, the 14-3-3 phosphoserine-binding protein, a protein containing a nascent polypeptide-associated complex domain, and the putative epsilon subunit of coatomer protein complex isoform 2. Oxidative cleavage of diols using sodium m-periodate demonstrated that carbohydrate moieties are essential for the antigenicity of all four spots of the 31-kDa antigen. In this article we describe the identification of the 31-kDa antigen, and provide DNA sequencing of the targets. In conclusion, these data suggest that reactivity to the 31-kDa proteins may represent antibody recognition of more than one protein, and recombinant protein-based assays for cerebral angiostrongyliasis diagnosis may require eukaryotic expression systems to maintain antigenicity. PMID:22925026

Levert, Keith; Perelygin, Andrey; da Silva, Alexandre J.; Wilkins, Patricia; Graeff-Teixeira, Carlos

2012-01-01

333

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

Federal Register 2010, 2011, 2012, 2013, 2014

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

2012-05-16

334

O Departamento de Letras da PUC-Rio e o Grupo da Prtica Exploratria do Rio de Janeiro convidam para o  

E-print Network

O Departamento de Letras da PUC-Rio e o Grupo da Prática Exploratória do Rio de Janeiro convidam: ................ Professores e alunos explorando com a PE 2013. Dia: 26 de novembro de 2013 Local: Salão da Pastoral, PUC-Rio: epcentrerio@hotmail.com Taxa: R$ 15. Isentos: profs da rede pública, alunos de LETRAS da PUC-Rio

335

Raízes pós-mitológicas da Astronomia Clássica  

NASA Astrophysics Data System (ADS)

Apresentamos como a invenção de um modelo astronômico e cosmológico fundado em causas naturais foi um processo gestado num ambiente cultural específico, o do advento do pensamento pós-mitológico, que tem como sua raiz mais funda a trajetória particular da Grécia Antiga, com ênfase na resolução de uma grave crise social e a evolução do mundo clássico para o contexto espiritual de um império universal.

di Bartolo, L.; Villas da Rocha, J. F.

2004-02-01

336

MINISTRIO DA EDUCAO UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

modelos didáticos no ensino de Ciências e Biologia: Modelos tridimensionais de células e tecidos 5367 - DESENVOLVIMENTO DE MODELOS DIDÁTICOS NO ENSINO DE CI�NCIAS E BIOLOGIA: PELE E VASOS SANGUÍNEOS 5421 - PROJETO SEM - Desenvolvimento de modelos didáticos no ensino de Ciências e Biologia: representação tridimensional da célula nos

Paraná, Universidade Federal do

337

Ministrio da Educao UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

Humanas 1.1.1 Departamento de Filosofia Área de Conhecimento: Filosofia Matéria Específica: Introdução a Filosofia Processo: 23075.050587/2014-33 Número de Vagas: 01 (uma) Regime de Trabalho: 40 (quarenta) horas semanais Requisitos: Mestrado em Filosofia, obtido na forma da lei. Tipos de Provas: Análise de Currículo e

Paraná, Universidade Federal do

338

DAEdALUS and Dark Matter Detection  

E-print Network

Among laboratory probes of dark matter, fixed-target neutrino experiments are particularly well-suited to search for light weakly-coupled dark sectors. In this paper, we show that the DAEdALUS source setup---an 800 MeV proton beam impinging on a target of graphite and copper---can improve the present LSND bound on dark photon models by an order of magnitude over much of the accessible parameter space for light dark matter when paired with a suitable neutrino detector such as LENA. Interestingly, both DAEdALUS and LSND are sensitive to dark matter produced from off-shell dark photons. We show for the first time that LSND can be competitive with searches for visible dark photon decays, and that fixed-target experiments have sensitivity to a much larger range of heavy dark photon masses than previously thought. We review the mechanism for dark matter production and detection through a dark photon mediator, discuss the beam-off and beam-on backgrounds, and present the sensitivity in dark photon kinetic mixing for both the DAEdALUS/LENA setup and LSND in both the on- and off-shell regimes.

Yonatan Kahn; Gordan Krnjaic; Jesse Thaler; Matthew Toups

2015-03-12

339

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

NASA Astrophysics Data System (ADS)

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

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

2006-08-01

340

Robotic pylorus preserving pancreaticoduodenectomy with mini-laparotomy reconstruction in patient with ampullary adenoma.  

PubMed

Robotic surgical system provides many unique advantages which might compensate the limitations of usual laparoscopic surgery. By using robotic surgical system, we performed robot-assisted laparoscopic pancreaticoduodenectomy (PD). A Sixty-two year old female patient with an ampullary mass underwent robot assisted PD due to imcomplete treatment of endoscopic ampullectomy. The removal of specimen and reconstruction were performed through small upper midline skin incision. Robot working time was about 8 hours, and blood loss was about 800 ml without blood transfusion. She returned to an oral diet on postoperative day 3. Grade B pancreatic leak was noted during the postoperative period, but was successfully managed by conservative management alone. We successfully performed da Vinci-assisted laparoscopic PD, and robot surgical system provided three-dimensional stable visualization and wrist-like motion of instrument facilitated complex operative procedures. More experiences are necessary to address real role of robot in far advanced laparoscopic pancreatic surgery. PMID:22148130

Choi, Sung Hoon; Kang, Chang Moo; Kim, Dong Hyun; Lee, Woo Jung; Chi, Hoon Sang

2011-11-01

341

Robotic pylorus preserving pancreaticoduodenectomy with mini-laparotomy reconstruction in patient with ampullary adenoma  

PubMed Central

Robotic surgical system provides many unique advantages which might compensate the limitations of usual laparoscopic surgery. By using robotic surgical system, we performed robot-assisted laparoscopic pancreaticoduodenectomy (PD). A Sixty-two year old female patient with an ampullary mass underwent robot assisted PD due to imcomplete treatment of endoscopic ampullectomy. The removal of specimen and reconstruction were performed through small upper midline skin incision. Robot working time was about 8 hours, and blood loss was about 800 ml without blood transfusion. She returned to an oral diet on postoperative day 3. Grade B pancreatic leak was noted during the postoperative period, but was successfully managed by conservative management alone. We successfully performed da Vinci-assisted laparoscopic PD, and robot surgical system provided three-dimensional stable visualization and wrist-like motion of instrument facilitated complex operative procedures. More experiences are necessary to address real role of robot in far advanced laparoscopic pancreatic surgery. PMID:22148130

Choi, Sung Hoon; Kim, Dong Hyun; Lee, Woo Jung; Chi, Hoon Sang

2011-01-01

342

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

343

Diffusivity of sub-1,000 Da molecules in 40 nm silicon-based alumina pores  

Microsoft Academic Search

Porous anodic alumina has been of an increasing interest to applications of on-chip biosensors and bioseparations. However,\\u000a the characteristics of molecular diffusion in alumina nanopores have not been fully explored. Here, we have investigated an\\u000a ultra-thin freestanding alumina membrane fabricated on a silicon substrate as a new on-chip diffusion system. Sub-1,000 Da\\u000a molecules such as caffeine were diffused through alumina pores

Xingqun Jiang; Nirankar Mishra; James N. Turner; Michael G. Spencer

2008-01-01

344

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

E-print Network

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

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

2014-01-01

345

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

346

DIAGNÓSTICO DA AMBIÊNCIA ORGANIZACIONAL DA COMUNIDADE DE PRODUTORES DE PIMENTA LONGA (PIPER HISPIDINERVUM) UNIÃO DA LINHA SEIS DO PROJETO DE COLONIZAÇÃO HUMAITÁ EM PORTO ACRE – AC  

Microsoft Academic Search

Este trabalho apresenta o resultado parcial de uma pesquisa maior sobre a avaliação ambiental e sócio-econômica da produção de pimenta longa (Piper hispidinervum) de uma comunidade de produtores de um projeto de colonização do INCRA. Trata-se da sistematização do que foi levantado em campo, através de pesquisa realizada com 10 (dez) produtores rurais, pertencentes a uma associação de produtores do

Solange Maria Chalub Bandeira Teixeira; Lucas Araujo Carvalho

2008-01-01

347

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

348

Locally formed dopamine modulates renal Na-Pi co-transport through DA1 and DA2 receptors.  

PubMed Central

The involvement of dopamine (DA) receptor subtypes in regulation of renal phosphate transport by DA, either exogenous or locally synthesized from L-dihydroxyphenylalanine (L-dopa) was evaluated in opossum kidney (OK) cells with proximal tubular phenotype. DA synthesis from L-dopa by OK cells was abolished by carbidopa and benserazide, two dissimilar inhibitors of aromatic L-amino acid decarboxylase. L-Dopa stimulated cyclic AMP generation and inhibited Na-dependent Pi uptake, and these effects were abolished by carbidopa and benserazide. The effects of L-dopa or DA on cyclic AMP generation and on Na-Pi co-transport were mimicked by SKF 38393, a DA1 receptor agonist, and were potentiated by S-sulpiride, a DA2 receptor antagonist. Bromocriptine, a DA2 receptor agonist, blunted in a pertussis toxin-dependent manner parathyroid hormone (PTH)-induced cyclic AMP generation and inhibition of Pi uptake. In contrast with PTH, neither L-dopa nor DA affected significantly the cytosolic calcium concentration. These results support the involvement of DA1 and DA2 receptors, positively and negatively coupled into adenylate cyclase respectively, in modulation of renal phosphate transport. PMID:8526852

Perrichot, R; Garcia-Ocaña, A; Couette, S; Comoy, E; Amiel, C; Friedlander, G

1995-01-01

349

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

350

Mutual and self-diffusion of charged porphyrines in aqueous solutions V.C.P. da Costa a,b  

E-print Network

Mutual and self-diffusion of charged porphyrines in aqueous solutions V.C.P. da Costa a,b , A 2011 Keywords: Mutual diffusion Self-diffusion Tetrasodium tetraphenylporphyrintetrasulfonate AqueousTPPS) + water} binary system, the self-diffusion coeffi- cients of TPPS4À and Na+ , and the mutual

Annunziata, Onofrio

351

ARTIGO INTERNET Ensino superior faz 35% da investigao  

E-print Network

NewsSearch ARTIGO INTERNET Ensino superior faz 35% da investigação in http superior faz 35% da investigação O investimento na investigação científica continua a subir em Portugal. O Estatística (GPEARI) do Ministério da Ciência, Tecnologia e Ensino Superior, mostram uma cada vez maior

Instituto de Sistemas e Robotica

352

[Robotic surgery for gastroenterological malignancies].  

PubMed

In Japan, the usefulness of robot-assisted surgery using da Vinci surgical system(DVSS)has rapidly become widely acknowledged. At Fujita Health University, DVSS was introduced in 2009. Thus far, 347 patients were treated by DVSS at our institute, including 204 gastroenterological operations. In our department, robot-assisted gastrectomy(RAG, n=111)and robot-assisted esophagectomy(REG, n=26)have been technically standardized. Recently, we reported that both RAG and REG are minimally invasive. Moreover, we showed that the incidence of recurrent nerve palsy by lymphadenectomy was significantly reduced by REG, compared with conventional thoracoscopic esophagectomy. Although robot-assisted surgery is a highly expensive treatment, these results prompt the need for further evaluation of the effectiveness of robot-assisted surgery in the gastroenterological field. Development of a more accurate and less invasive robotic surgery system would contribute to a better quality of life patients with gastroenterological malignancies. PMID:22790036

Satoh, Seiji; Suda, Koichi; Kawamura, Yuichiro; Yoshimura, Fumihiro; Taniguchi, Keizo; Uyama, Ichiro

2012-07-01

353

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. PMID:25525474

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

2014-01-01

354

Patient positioning and port placement for robot-assisted surgery.  

PubMed

Abstract The introduction of robotic surgical systems and their integration into minimally invasive procedures have changed the landscape of laparoscopic surgery dramatically. Intuitive Surgical's da Vinci Surgical System was first approved by the Food and Drug Administration for cardiothoracic procedures in the late 1990s. This trend quickly spread through other surgical specialties, with urologists as one of the frontrunners in adoption. Subsequently, pediatric urologists have adopted robot-assisted procedures in selected centers, performing procedures such as pyeloplasty for ureteropelvic junction obstruction, partial and complete nephrectomy, and both intravesical and extravesical ureteral reimplantation. In this article, we will discuss technical considerations related to patient positioning and port placement in pediatric robot-assisted surgery. PMID:24548088

Chang, Charles; Steinberg, Zoe; Shah, Anup; Gundeti, Mohan S

2014-06-01

355

Programao da 3 Semana da Cultura Afro-Brasileira 25/11 (segunda-feira)  

E-print Network

do solo, como em cima, ela enfatiza as tradições da capoeira, que em sua raiz está ligada aos rituais danças e dramatizações, que apresentam em comum a raiz negra africana. Recriada no Brasil, nas diferentes

Souza, Max O.

356

Influência da utilização da órtese de tornozelo durante atividades do voleibol: avaliação eletromiográfica  

Microsoft Academic Search

RESUMO Entorse de tornozelo é a lesão aguda mais freqüentemente en- contrada no voleibol. Com o intuito de prevenir a ocorrência de lesões de tornozelos, foram desenvolvidos equipamentos profilá- ticos, como as órteses. O objetivo deste estudo foi avaliar o de- sempenho dos músculos do tornozelo (tibial anterior, fibular longo e gastrocnêmio - porção medial e lateral) por meio da

Jefferson Rosa Cardoso; Christiane de Souza Macedo Guerino; Marcelo Bannwart Santos; Thiago André Del Arco Mustafá; Anália Rosário Lopes; Marcelo Costa de Paula

2005-01-01

357

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

358

VARIAÇÃO ESPACIAL LONGITUDINAL E TEMPORAL DA QUALIDADE DA ÁGUA DO CÓRREGO BONITO, PERÍODO 2001 A 2006  

Microsoft Academic Search

RESUMO --- O município de Bonito, MS, possui uma das mais belas paisagens de águas cristalinas do Brasil, atraindo turistas do mundo inteiro para contemplar essa beleza natural. Porém, estas paisagens estão sendo ameaçadas devido a falta de consciência dos próprios moradores que lançam seus efluentes domésticos diretamente nos corpos d'água degradando-os. Juntamente com isto, existe o problema da gestão

Luiz Mário Ferreira; Rodrigo Lima

359

1Ris-R-1154(EN, DA) Ris-R-1154(EN, DA)  

E-print Network

-R-1154(EN, DA) Abstract The report contains a list of references to the scientific and technical journal Institutional Citation Report database produced by the Institute for Scientific Information. Rapporten er en Institutional Citation Report produceret af Institute for Scientific Information. ISBN 87-550-2642-7 ISBN 87

360

1Ris-R-1097(EN, DA) Ris-R-1097(EN, DA)  

E-print Network

-R-1097(EN, DA) Abstract The report contains a list of references to the scientific and technical journal Institutional Citation Report database produced by the Institute for Scientific Information. Rapporten er en Institutional Citation Report produceret af Institute for Scientific Information. ISBN 87-550-2504-8 ISBN 87

361

Discriminant forest classification method and system  

SciTech Connect

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

362

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

363

OpenDA Open Source Generic Data Assimilation Environment and its Application in Process Models  

NASA Astrophysics Data System (ADS)

Data Assimilation techniques are essential elements in state-of-the-art development of models and their optimization with data in the field of groundwater, surface water and soil systems. They are essential tools in calibration of complex modelling systems and improvement of model forecasts. The OpenDA is a new and generic open source data assimilation environment for application to a choice of physical process models, applied to case dependent domains. OpenDA was introduced recently when the developers of Costa, an open-source TU Delft project [http://www.costapse.org; Van Velzen and Verlaan; 2007] and those of the DATools from the former WL|Delft Hydraulics [El Serafy et al 2007; Weerts et al. 2009] decided to join forces. OpenDA makes use of a set of interfaces that describe the interaction between models, observations and data assimilation algorithms. It focuses on flexible applications in portable systems for modelling geophysical processes. It provides a generic interfacing protocol that allows combination of the implemented data assimilation techniques with, in principle, any time-stepping model duscribing a process(atmospheric processes, 3D circulation, 2D water level, sea surface temperature, soil systems, groundwater etc.). Presently, OpenDA features filtering techniques and calibration techniques. The presentation will give an overview of the OpenDA and the results of some of its practical applications. Application of data assimilation in portable operational forecasting systems—the DATools assimilation environment, El Serafy G.Y., H. Gerritsen, S. Hummel, A. H. Weerts, A.E. Mynett and M. Tanaka (2007), Journal of Ocean Dynamics, DOI 10.1007/s10236-007-0124-3, pp.485-499. COSTA a problem solving environment for data assimilation applied for hydrodynamical modelling, Van Velzen and Verlaan (2007), Meteorologische Zeitschrift, Volume 16, Number 6, December 2007 , pp. 777-793(17). Application of generic data assimilation tools (DATools) for flood forecasting purposes, A.H. Weerts, G.Y.H. El Serafy, S. Hummel, J. Dhondia, and H. Gerritsen (2009), accepted by Geoscience & Computers.

El Serafy, Ghada; Verlaan, Martin; Hummel, Stef; Weerts, Albrecht; Dhondia, Juzer

2010-05-01

364

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

365

Divulgação voluntária da demonstração dos fluxos de caixa no mercado de capitais Brasileiro  

Microsoft Academic Search

RESUMO Este trabalho avalia os motivos da divulgação voluntária da DFC, Demonstração dos Fluxos de Caixa, no mercado de capitais brasileiro. Para tal, utiliza o referencial teórico da Teoria da Divulgação Voluntária. A partir do modelo proposto por Verrecchia (2001), são elaboradas cinco hipóteses relacionando a divulgação voluntária da DFC a outras variáveis. Essas hipóteses são testadas a partir dos

Bruno Meirelles Salotti; Marina Mitiyo Yamamoto

2008-01-01

366

Evolution of robotic arms.  

PubMed

The foundation of surgical robotics is in the development of the robotic arm. This is a thorough review of the literature on the nature and development of this device with emphasis on surgical applications. We have reviewed the published literature and classified robotic arms by their application: show, industrial application, medical application, etc. There is a definite trend in the manufacture of robotic arms toward more dextrous devices, more degrees-of-freedom, and capabilities beyond the human arm. da Vinci designed the first sophisticated robotic arm in 1495 with four degrees-of-freedom and an analog on-board controller supplying power and programmability. von Kemplen's chess-playing automaton left arm was quite sophisticated. Unimate introduced the first industrial robotic arm in 1961, it has subsequently evolved into the PUMA arm. In 1963 the Rancho arm was designed; Minsky's Tentacle arm appeared in 1968, Scheinman's Stanford arm in 1969, and MIT's Silver arm in 1974. Aird became the first cyborg human with a robotic arm in 1993. In 2000 Miguel Nicolalis redefined possible man-machine capacity in his work on cerebral implantation in owl-monkeys directly interfacing with robotic arms both locally and at a distance. The robotic arm is the end-effector of robotic systems and currently is the hallmark feature of the da Vinci Surgical System making its entrance into surgical application. But, despite the potential advantages of this computer-controlled master-slave system, robotic arms have definite limitations. Ongoing work in robotics has many potential solutions to the drawbacks of current robotic surgical systems. PMID:25484945

Moran, Michael E

2007-01-01

367

A Novel Framework for Building Distributed Data Acquisition and Monitoring Systems  

Microsoft Academic Search

We propose a novel framework for building a distributed data acquisition and monitoring system. Our novel framework is mainly based on XML leverages and OPC (Openness, Productivity, and Connectivity) techni- ques. Correspondingly, our framework-based system allows easily aggregating more than the hundreds or thousands of the existing OPC DA (Data Access) products in use today with new OPC XML-DA products

Vu Van Tan; Dae-seung Yoo; Myeong-jae Yi

2007-01-01

368

Diffusion of Surgical Innovations, Patient Safety, and Minimally Invasive Radical Prostatectomy  

PubMed Central

IMPORTANCE Surgical innovations disseminate in the absence of coordinated systems to ensure their safe integration into clinical practice, potentially exposing patients to increased risk for medical error. OBJECTIVE To investigate associations of patient safety with the diffusion of minimally invasive radical prostatectomy (MIRP) resulting from the development of the da Vinci robot. DESIGN, SETTING, AND PARTICIPANTS A cohort study of 401 325 patients in the Nationwide Inpatient Sample who underwent radical prostatectomy during MIRP diffusion between January 1, 2003, and December 31, 2009. MAIN OUTCOMES AND MEASURES We used Agency for Healthcare Research and Quality Patient Safety Indicators (PSIs), which measure processes of care and surgical provider performance. We estimated the prevalence of MIRP among all prostatectomies and compared PSI incidence between MIRP and open radical prostatectomy in each year during the study. We also collected estimates of MIRP incidence attributed to the manufacturer of the da Vinci robot. RESULTS Patients who underwent MIRP were more likely to be white (P = .004), have fewer comorbidities (P = .02), and have undergone surgery in higher-income areas (P = .005). The incidence of MIRP was substantially lower than da Vinci manufacturer estimates. Rapid diffusion onset occurred in 2006, when MIRP accounted for 10.4% (95% CI, 10.2-10.7) of all radical prostatectomies in the United States. In 2005, MIRP was associated with an increased adjusted risk for any PSI (adjusted odds ratio, 2.0; 95% CI, 1.1-3.7; P = .02) vs open radical prostatectomy. Stratification by hospital status demonstrated similar patterns: rapid diffusion onset among teaching hospitals occurred in 2006 (11.7%; 95% CI, 11.3-12.0), with an increased risk for PSI for MIRP in 2005 (adjusted odds ratio, 2.7; 95% CI, 1.4-5.3; P = .004), and onset among nonteaching hospitals occurred in 2008 (27.1%; 95% CI, 26.6-27.7), with an increased but nonsignificant risk for PSI in 2007 (adjusted odds ratio, 2.0; 95% CI, 0.8-5.2; P = .14). CONCLUSIONS AND RELEVANCE During its initial national diffusion, MIRP was associated with diminished perioperative patient safety. To promote safety and protect patients, the processes by which surgical innovations disseminate into clinical practice require refinement. PMID:24990549

Parsons, J. Kellogg; Messer, Karen; Palazzi, Kerrin; Stroup, Sean; Chang, David

2015-01-01

369

ANLISE AMBIENTAL DA SUB BACIA DO RIO TIMBU ATRAVS  

E-print Network

ANÁLISE AMBIENTAL DA SUB BACIA DO RIO TIMBU ATRAVÉS DO SENSORIAMENTO REMOTO NA ESCOLA Autora Bauer ­ 2º A Jenifer Vasconcelos Celi ­ 1ºA Luis Eduardo Dominciano ­ 1º B ANÁLISE AMBIENTAL DA SUB, utilizando este momento para desenvolver aspectos relacionados à educação ambiental. #12;TÉCNICAS UTILIZADAS

370

Desdobramentos de Curto e Médio Prazo da Crise Atual  

Microsoft Academic Search

A crise financeira internacional aprofundou-se no último trimestre de 2008. As multinacionais procuram se adaptar, as instituições multilaterais debatem soluções e os governos aumentam sua capacidade de intervenção na economia. O presente texto escreve as origens da crise internacional e discute algumas de suas características,mostrando a evolução recente de alguns indicadores macroeconômicos em países selecionados, e os efeitos da crise

Luciana Acioly; Milko Matijascic; Emilio Chernavsky; Maria Piñón; Rodrigo Pimental Ferreira Leão

2009-01-01

371

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

372

ISSN 0103-9741 Monografias em Cincia da Computao  

E-print Network

IPv6 Anderson Oliveira da Silva Luiz Fernando Gomes Soares Sérgio Colcher Departamento de Informática José Pereira de Lucena Julho, 2008 Aprimoramentos no RSVP para o Mobile IPv6* Anderson Oliveira da to offer only a very simple quality of ser- vice (QoS) support, known as point-to-point best-effort data

Endler, Markus

373

OBEX and high speed IrDA links  

Microsoft Academic Search

OBEX is a higher layer protocol adopted as the framework for wireless object exchange for wireless transports including IrDA and Bluetooth. In this paper, we develop a model which leads to derivation of the OBEX throughput over the IrDA protocol stack for various data rates in the presence of bit errors. We then optimize the OBEX packet size and turnaround

Pi Huang; A. C. Boucouvalas

374

I SIMPSIO DA FACULDADE DE NUTRIO EMLIA DE JESUS FERREIRO  

E-print Network

I SIMPÓSIO DA FACULDADE DE NUTRIÇÃO EMÍLIA DE JESUS FERREIRO Tema Central ATUALIDADES EM NUTRIÇÃO Faculdade de Nutrição Emilia de Jesus Ferreiro: 05 de agosto de 2013 a 13 de outubro de 2013 Para inscrição FACULDADE DE NUTRIÇÃO EMÍLIA DE JESUS FERREIRO R COMISSÃO ORGANIZADORA Profª.Daniele da Silva Bastos Soares

Souza, Max O.

375

32 CFR 643.121 - Private organizations on DA installations.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2011-07-01 true Private organizations on DA installations. 643.121 Section 643.121 National Defense...Authority of Commanders § 643.121 Private organizations on DA installations. (a) AR 210-1 defines and...

2012-07-01

376

32 CFR 643.121 - Private organizations on DA installations.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 2013-07-01 true Private organizations on DA installations. 643.121 Section 643.121 National Defense...Authority of Commanders § 643.121 Private organizations on DA installations. (a) AR 210-1 defines and...

2014-07-01

377

32 CFR 643.121 - Private organizations on DA installations.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 true Private organizations on DA installations. 643.121 Section 643.121 National Defense...Authority of Commanders § 643.121 Private organizations on DA installations. (a) AR 210-1 defines and...

2010-07-01

378

32 CFR 643.121 - Private organizations on DA installations.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Private organizations on DA installations. 643.121 Section 643.121 National Defense...Authority of Commanders § 643.121 Private organizations on DA installations. (a) AR 210-1 defines and...

2013-07-01

379

32 CFR 643.121 - Private organizations on DA installations.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Private organizations on DA installations. 643.121 Section 643.121 National Defense...Authority of Commanders § 643.121 Private organizations on DA installations. (a) AR 210-1 defines and...

2011-07-01

380

AVALIAO INTERNA DA PUC-Rio RELATRIO PARCIAL I  

E-print Network

.2. Etapa 2: Implementação da Avaliação Interna 8 2.2.1. A construção dos instrumentos de coleta de dados 8 instrumentos metodológicos a serem utilizados nas demais etapas Avaliação Interna da universidade. O Sistema de universidade. A segunda etapa refere-se especificamente à construção dos instrumentos de coleta de dados e ao

381

MINISTRIO DA CINCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS  

E-print Network

MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS CENTRO ESPACIAL DE;MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS CENTRO ESPACIAL DE CACHOEIRA/CP ÓRGÃO SUBORDINADO AO MINISTÉRIO DE CIÊNCIA E TECNOLOGIA UNIDADE GESTORA No 240108 FINALIDADE ESSENCIAL E

Domingues, Margarete Oliveira

382

MINISTRIO DA CINCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS  

E-print Network

1 MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS RELATÓRIO DE GESTÃO DO INPE ANO 2001 Unidade Gestora São José dos Campos - SP #12;2 MINISTÉRIO DA CIÊNCIA E TECNOLOGIA e Tecnologia. Sua principal finalidade é "promover e executar estudos, pesquisas científicas

Domingues, Margarete Oliveira

383

MINISTRIO DA CINCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS  

E-print Network

MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS CENTRO ESPACIAL DE;MINISTÉRIO DA CIÊNCIA E TECNOLOGIA INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS CENTRO ESPACIAL DE CACHOEIRA SUBORDINADO AO MINISTÉRIO DE CIÊNCIA E TECNOLOGIA UNIDADE GESTORA No 240108 FINALIDADE ESSENCIAL E ATRIBUIÇÕES

Domingues, Margarete Oliveira

384

A INVESTIGAÇÃO PARTICIPATIVA NO GRUPO SOCIAL DA INFÂNCIA  

Microsoft Academic Search

Este texto pretende apresentar e discutir possibilidades metodológicas que vão ao encontro a uma das exigências que se coloca à Sociologia da Infância: dar voz às crianças na interpretação dos seus mundos sociais e culturais. Partindo do pressuposto de que as crianças são actores sociais competentes para a interpretação da realidade social em que se inserem, apresentamos então possibilidades metodológicas

Natália Fernandes Soares

2006-01-01

385

SENSORIAMENTO REMOTO NO ESTUDO DA DENGUE COM ALUNOS  

E-print Network

#12;Justificativa Metodologia tradicional O aluno pode acreditar que não existe o risco eminente da, material disponível em todas as escolas municipais. Metodologia/Resultados Gerar tabelas e mapas a partir/Resultados · Geração de mapas a partir da interpretação de imagens de satélite; São José dos Campos - Google Earth Rio

386

Centro de Divulgação da Astronomia - o Observatório de São Carlos  

NASA Astrophysics Data System (ADS)

Apresentamos as principais características do Centro de Divulgação da Astronomia, que é constituído e um observatório cujo objetivo é a divulgação da Astronomia junto à comunidade, através de palestras e de observação direta dos astros. Descrevemos, neste trabalho, as atividades desenvolvidas desde sua fundação em 1986, e mostramos sua importância na região através de números anuais das atividades realizadas.

Dias, W. S.; Hönel, J.; Líbero, V. L.; Anderlini, A.; de Andrade, D.; Scatena, E.; Lazo, M. J.; Trevisan, M.; de Castro, V.

2005-07-01

387

Governo apresenta reforma da rede do Superior em Maro sem contributo dos reitores  

E-print Network

Governo apresenta reforma da rede do Superior em Março sem contributo dos reitores O Ministério da a racionalização da rede do Superior que vai passar pela cria- ção de consórcios entre universida- des e

Instituto de Sistemas e Robotica

388

Effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on retinal dopaminergic system in mice.  

PubMed

The neurotoxins methamphetamine (METH) and MPTP are well-known for their effects on the nigrostriatal dopaminergic system and use in modeling neurodegenerative disorders such as Parkinson's disease. It is not well-known though, how METH or MPTP affects the visual system and specifically the retinal dopaminergic system. This study was designed to examine acute effects of multiple doses of METH and MPTP on the retinal dopaminergic system. Mice were exposed to either low- (LD) 10 mg/kg total dose or high-dose (HD) 30 mg/kg total dose, of METH or MPTP and the retinal catecholaminergic system was analyzed by HPLC. METH produced no significant changes in dopamine (DA), its metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) or DA usage in the retina. LD-MPTP produced no change in DA level, but significantly decreased DOPAC and HVA. LD-MPTP also significantly decreased DA usage as measured by the DOPAC/DA and HVA/DA ratios. HD-MPTP significantly decreased DA, DOPAC and HVA, but did not affect DA usage. Taken together these results suggest that inhibition of the DA metabolizing enzymes monoamine oxidase A (MAO) or catechol-O-methyl transferase (COMT) may take place at lower doses of MPTP treatment; conversely, higher doses of MPTP may cause decreases in DA, DOPAC and HVA through another mechanism. PMID:22414866

Hamilton, W Ryan; Trickler, William J; Robinson, Bonnie L; Paule, Merle G; Ali, Syed F

2012-05-01

389

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

390

Wireless Application in Intravenous Infiltration Detection System  

PubMed Central

The IrDA wireless protocol has been applied to a fiber optics based point-of-care system for the detection of intravenous infiltration. The system is used for monitoring patients under infusion therapy. It is optimized for portability by incorporating a battery source and wireless communication. The IrDA protocol provides secure data communication between the electronic module of the system and the PDAs carried by the nurses. The PDA is used for initiating the actions of the electronic module and for data transfer. Security is provided by specially designed software and hardware. PMID:19162821

Alley, Matthew S.; Naramore, William J.; Chou, Nee-Yin; Winchester, Leonard W.

2008-01-01

391

Heavy element abundances in DA white dwarfs  

E-print Network

We present a series of systematic abundance measurements for a group of hot DA white dwarfs in the temperature range 20,000-75,000K, based on far-UV spectroscopy with STIS on HST, IUE and FUSE. Using our latest heavy element blanketed non-LTE stellar atmosphere calculations we have addressed the heavy element abundance patterns for the hottest stars for the first time, showing that they are similar to objects like G191-B2B. The abundances observed in the cooler (<50,000K) white dwarfs are something of a mystery. Some of the patterns (e.g. REJ1032) can be explained by self-consistent levitation-diffusion calculations but there is then a serious difficulty in understanding the appearance of the apparently pure H atmospheres. We also report the detection of photospheric HeII in the atmosphere of WD2218+706.

M. A. Barstow; M. R. Burleigh; N. P. Bannister; J. B. Holberg; I. Hubeny; F. C. Bruhweiler; R. Napiwotzki

2000-10-23

392

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior  

E-print Network

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior António Cruz Serra tomou posse como reitor da nova universidade que resulta da fusão da Clássica com a Técnica. Cruz Serra reitor da Universidade de Lisboa (UL), resultante da fusão entre a Clássica e a Técnica, falou nesta

Instituto de Sistemas e Robotica

393

The Art of Drawing  

Microsoft Academic Search

No other discipline is quite like drawing. Nothing can replace that which drawing has bestowed upon mankind throughout history. Drawing is so distinctive that even the power of words cannot describe nor replace its graces. Leonardo da Vinci illustrates this phenomenal quality in elaborate notes that he collected throughout the years of his career as an artist, scientist, engineer, and

Meili Peterson; Texas Alpha

394

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

395

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

Microsoft Academic Search

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.

Cynthia M Pyle

2000-01-01

396

Novel application of the CORAL software to model cytotoxicity of metal oxide nanoparticles to bacteria Escherichia coli  

E-print Network

, Politecnico di Milano, piazza Leonardo da Vinci 32, 20133 Milano, Italy c Faculty of Chemistry, Laboratory of Chemistry and Biochemistry, Jackson State University, 1400 JR Lynch Street, P.O. Box 17910, Jackson, MS necessities (medicine, cosmetics, etc.). These wide- spread applications of nanomaterials rise questions

Gini, Giuseppina

397

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

398

FindlayCitySchools 1219W.MainCross,Suite102  

E-print Network

with "Divining da Vinci's Genius" as the theme. As students have fun with hands-on activities, the genius's Genius" Date: June 6 - 10, 2011 8:30 - 3:00 daily Location: Bigelow Hill School 300 Hillcrest Avenue the genius of Leonardo's simple machines. Put on your thinking cap and get ready to become an inventor. High

Moore, Paul A.

399

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

400

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

401

Everyday Electrical Engineering: A One-Week Summer Academy Course for High School Students  

ERIC Educational Resources Information Center

A summer academy is held for grade 9-12 high school students at the University of Toronto, Toronto, ON, Canada, every year. The academy, dubbed the Da Vinci Engineering Enrichment Program (DEEP), is a diverse program that aims to attract domestic and international high school students to engineering and sciences (and possibly recruit them). DEEP…

Mehrizi-Sani, A.

2012-01-01

402

KINDERET: developing training for early childhood educators in information and communications technology (ICT) in Bulgaria, England, Portugal, Spain and Sweden  

Microsoft Academic Search

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 needs of practitioners and is developing course materials to support

S. Saúde; V. Carioca; S. Sheridan; K. Genov; R. Nuez

2005-01-01

403

\\  

Microsoft Academic Search

In recent years, an interest in religious (especially Christian) discourses has resurged, as evidenced by the popularity of the conservative Catholic film, The Passion of the Christ (2004) and Dan Brown's Church-conspiracy thriller The Da Vinci Code (2003). My thesis explores the character of Mary Magdalen within such texts, comparing hercontemporary imaginings with the imaginings of late medieval English texts.

Elizabeth C. Harmer

2005-01-01

404

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

405

Matematica ed Ecologia: un'interazione feconda MARINO GATTO  

E-print Network

'apporto di altre scienze come la fisica dell'atmosfera e la geologia, ma sempre più si parla al giorno dMatematica ed Ecologia: un'interazione feconda MARINO GATTO Professore ordinario di Ecologia, Dipartimento di Elettronica e Informazione, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano

Gatto, Marino

406

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

407

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

408

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

409

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

410

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

411

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

412

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

413

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

414

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

415

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

416

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

417

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

418

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

419

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

420

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.

Suzanne K. Werner

2003-03-01

421

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

422

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

423

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

424

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

425

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.

426

Department of Physics & Astronomy Experimental Particle Physics Group  

E-print Network

user analysis. A new API for production and analysis job submission to the DIRAC Workload Management guide and examples of typical production and analysis jobs are supplied for potential users Example Jobs 12 5.1 DaVinci Analysis Job

Glasgow, University of

427

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

428

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

429

\\  

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

430

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

431

Balkan Region Conference on Engineering Education 2005 LBUS Sibiu, Romania, 12 -15 September, 2005  

E-print Network

), has already proved to be successful. The SMECTRA: "Small and Medium Enterprises Counselling and the innovative approaches proposed in the frame of the Leonardo da Vinci pilot project SMECTRA: "Small and Medium, it focuses on the evaluation of the status of vocational training and e-Learning in Small and Medium

Paris-Sud XI, Université de

432

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

433

ECOHYDROLOGY Ecohydrol. 2, 428439 (2009)  

E-print Network

.interscience.wiley.com) DOI: 10.1002/eco.71 When will the zebra mussel reach Florence? A model for the spread of Dreissena Ambientale, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy ABSTRACT The zebra mussel spatiotemporal scenarios of invasion that present several distinctive features of the zebra mussel invasion

Gatto, Marino

2009-01-01

434

Science versus (?) Art: Human Perception of Other Worlds  

Microsoft Academic Search

At the time of the Renaissance, science and art were mixed together as a way to understand the human relation to the larger cosmos. Leonardo da Vinci exemplifies this approach. In modern times, the two have become separate, and even antagonistic, ``two cultures.\\

William K. Hartmann

1998-01-01

435

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.

Joseph M. Dirnberger

2005-01-01

436

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

437

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

438

Tuscany & Cinque Terre A Special Departure  

E-print Network

da Vinci, Caravaggio and more; feast your eyes on Botticelli's Birth of Venus and Michelangelo's Doni have used Florence landmarks as their palette, with a focus on Michelangelo. Then it's off Monterosso al Mare Carrara Colonnata Vernazza place of Michelangelo, Galileo, Rossini and illustrious others

Connor, Ed

439

Mathematical Fiction for Senior Students and Undergraduates: Novels, Plays, and Film  

ERIC Educational Resources Information Center

Mathematical fiction has probably existed since ideas have been written down and certainly as early as 414 BC (Kasman, 2000). Mathematical fiction is a recently rediscovered and growing literature, as sales of the novels: "The Curious Incident of the Dog in the Night-time" (Haddon, 2003) and "The Da Vinci Code" (Brown, 2004) attest. Science…

Padula, Janice

2006-01-01

440

On the developing role of physical models in engineering design education  

Microsoft Academic Search

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 Schon and examples of implementation within the Mechanical and Aerospace Engineering disciplines at the University of

Graham Green; Ladislav Smrcek

2006-01-01

441

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

E-print Network

's razor · Marc Quinn · printout of the human genome · Andy Warhol · Egyptian Book of the Dead · Leonardo- century sex aids, amputation saws, Nelson's razor and a DNA-sequencing robot. The galleries Medicine Man, featuring exhibits from Leonardo da Vinci and Andy Warhol, through to the Egyptian Book of the Dead and live

Rambaut, Andrew

442

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

443

Read: What Kathmandu is Reading?  

E-print Network

and Hinduism. The young ones on the other hand buy self-help books like "Who Moved My Cheese", "The Greatness Guide" and so on. The Gi rls tend to buy fictions like "Da Vinci Code", "Harry Potter" and "Lord of the Rings". The bookshop is spacious...

Fineprint Bookclub

2011-01-05

444

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.

445

washingtonpost.com Count Him In  

E-print Network

Pods and "The Da Vinci Code." It makes life easier, more manageable and more orderly. Except when it comes's a hiker, a tennis player, a distance runner. He's got a loving family, a Manhattan pied see circles and polyhedra," he says. On this clear blue, purified spring day, Dan takes a postprandial

Rockmore, Dan

446

Augmented Reality Environment with Virtual Fixtures for Robotic Telemanipulation in Space  

E-print Network

Augmented Reality Environment with Virtual Fixtures for Robotic Telemanipulation in Space Tian Xia an augmented reality frame- work, implemented on the master console of a modified da Vinci R surgical robot or causing damage to the spacecraft. As our main contribution, our approach combines elements of augmented

Whitcomb, Louis L.

447

Santa Fe Institute. February 14, 2002 9:04 a.m. Taylor page 1 Fractal Expressionism--Where Art Meets  

E-print Network

around the world. Was this primitive painting style driven by raw genius or was he simply a drunk who, only works by Rembrandt, Vel´azquez, and da Vinci had com- manded more "respect" in the art market is hailed as a modern way of portraying life, the general public remains unclear about how a painting

Taylor, Richard

448

THE UNIVERSITY OF BRITISH COLUMBIA Charles Ker Dhoto  

E-print Network

't balance your chequebook?You could be the next Agatha Christie. Christie,likemany creative, successful mysterywriter'scase,it was difficulty with adding numbers. Both da Vinci and Einstein weredyslexic. "Agatha Christie couldn't spell, had ter- rible handwriting andwasincapable of balancingherchequebook,"said Linda

Farrell, Anthony P.

449

A filosofia da tolerncia (O conceito de quase verdade de Newton da Costa), Folha de So Paulo, 30 de novembro de 1997, Caderno Mais n5, 7.  

E-print Network

1 A filosofia da tolerância (O conceito de quase verdade de Newton da Costa), Folha de São Paulo, 30 de novembro de 1997, Caderno Mais n°5, 7. A filosofia da tolerância (O conceito de quase verdade Costa : um sobre a lógica e a filosofia da lógica, o outro sobre a filosofía da ciência. Dois trabalhos

Paris-Sud XI, Université de

450

ADVOCACIA-GERAL DA UNIO Concurso pblico para provimento de cargos vagos de Advogado da Unio de 2 Categoria  

E-print Network

.57, 190.90 / 10005498, Aloyzio Alves da Costa Neto, 78.43, 66.61, 56.71, 201.75 / 10005223, Alvaro.81 / 10025996, Andre Estima de Souza Leite, 94.35, 61.20, 64.70, 220.25 / 10015656, Andre Luiz Agostinho da

Maier, Rudolf Richard

451

NOVAS TECNOLOGIAS DA INFORMAÇÃO E COMUNICAÇÃO APLICADAS NO DESENVOLVIMENTO DO PENSAMENTO CRIATIVO COM O ENFOQUE DA PEDAGOGIA EMPREENDEDORA  

Microsoft Academic Search

Resumo Neste artigo aborda-se o impacto das novas tecnologias da informação e comunicação para proporcionar o potencial criativo dos indivíduos. O texto aborda uma proposta de uma pedagogia empreendedora utilizando-se das novas tecnologias para propiciar uma melhor retenção da inform ação, com as multimídias capazes de combinar diferentes sistemas simbólicos e interativos. Faz uma abordagem do pensamento criativo e como

Carlos Ribeiro da Silva; Renê Gomes Pimentel; Faculdade Baiana de Ciências

452

Current trends in robotic surgery for otolaryngology  

PubMed Central

As minimally invasive surgery has become common in head and neck surgery, the role of robotic surgery has expanded from thyroid surgery and transoral robotic surgery (TORS) of the oropharynx and supraglottic to other areas. Surgeons have advanced the limits of TORS, adapting lasers to the Da Vinci robot for glottic cancer, and combining existing techniques for transoral supraglottic laryngectomy and hypopharyngectomy to perform transoral total laryngectomy. Skull base approaches have been reported with some success in case reports and cadaver models, but the current instrument size and configuration limit the applicability of the current robotic system. Surgeons have reported reconstruction of the head and neck via local and free flaps. Using the previously reported approaches for thyroidectomy via modified facelift incision, neck dissection has also been reported. Future applications of robotic surgery in otolaryngology may be additionally expanded, as several new robotic technologies are under development for endolaryngeal work and neurotology. PMID:24069577

Byrd, J. Kenneth; Duvvuri, Umamaheswar

2013-01-01

453

[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

454

Robotic excision of a pre-coccygeal nerve root tumor.  

PubMed

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

455

Mechanics of blood flow.  

PubMed

The historical development of the mechanics of blood flow can be traced from ancient times, to Leonardo da Vinci and Leonhard Euler and up to the present times with increasing biological knowledge and mathematical analysis. In the last two decades, quantitative and numerical methods have steadily given more complete and precise understanding. In the arterial system wave propagation computations based on nonlinear one-dimensional modeling have given the best representation of pulse wave propagation. In the veins, the theory of unsteady flow in collapsible tubes has recently been extensively developed. In the last decade, progress has been made in describing the blood flow at junctions, through stenoses, in bends and in capillary blood vessels. The rheological behavior of individual red blood cells has been explored. A working model consists of an elastic membrane filled with viscous fluid. This model forms a basis for understanding the viscous and viscoelastic behavior of blood. PMID:7024641

Skalak, R; Keller, S R; Secomb, T W

1981-05-01

456

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.

457

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

458

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

459

[Robot assisted tumor resection of an asymptomatic right atrial intracardiac lipoma; report of a case].  

PubMed

Primary cardiac tumors are relatively rare. No therapeutic guidelines have been established for the surgical indications of such cases. This creates therapeutic dilemmas, especially when the patient is asymptomatic. We describe the robot-assisted resection of an asymptomatic right atrial lipoma. A 63-year-old female was diagnosed to have a round mobile lipoma, measuring 27 mm in diameter in the right atrium near the junction with the inferior vena cava (IVC). Although she was asymptomatic, a surgical resection was indicated since the lipoma could cause an embolism or IVC obstruction due to its morbidity and potential to enlarge. Surgery was performed using the da Vinci Surgical System. A right-sided approach was used through 4 ports. The tumor was resected with a small portion of the right atrial wall. The total operation time was 214 minutes, and the total pump time was 84 minutes. The operation was performed while the heart was beating. PMID:21682051

Seguchi, Ryuta; Yashiki, Noriyoshi; Kato, Hiroki; Yamaguchi, Shojiro; Ishikawa, Norihiko; Tomita, Shigeyuki; Otake, Hiroshi; Watanabe, Go

2011-06-01

460

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

461

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

462

A DBTechNet course module on database SQL transactions for VET teachers training and higher education informatics education  

NASA Astrophysics Data System (ADS)

"DBTech VET Teachers" project is Leonardo da Vinci Multilateral Transfer of Innovation Project co-financed by the European Commission's Lifelong Learning Programme. The aim of the project is to renew the teaching of database technologies in VET (Vocational Education and Training) institutes, on the basis of the current and real needs of ICT industry in Europe. Training of the VET teachers is done with the systems used in working life and they are taught to guide students to learning by verifying. In this framework, a course module on SQL transactions is prepared and offered. In this paper we present and briefly discuss some qualitative/quantitative data collected from its first pilot offering to an international audience in Greece during May-June 2013. The questionnaire/evaluation results, and the types of participants who have attended the course offering, are presented. Conclusions are also presented.

Dervos, D. A.; Skourlas, C.; Laiho, M.

2015-02-01

463

Robotic phrenic nerve harvest: a feasibility study in a pig model.  

PubMed

The aim of this study was to report on the feasibility of robotic phrenic nerve harvest in a pig model. A surgical robot (Da Vincisystem, Intuitive Surgical(®), Sunnyvale, CA) was installed with three ports on the pig's left chest. The phrenic nerve was transected distally where it enters the diaphragm. The phrenic nerve harvest was successfully performed in 45 minutes without major complications. The advantages of robotic microsurgery for phrenic nerve harvest are the motion scaling up to 5 times, elimination of physiological tremor, and free movement of joint-equipped robotic arms. Robot-assisted neurolysis may be clinically useful for harvesting the phrenic nerve for brachial plexus reconstruction. PMID:25267395

Porto de Melo, P; Miyamoto, H; Serradori, T; Ruggiero Mantovani, G; Selber, J; Facca, S; Xu, W-D; Santelmo, N; Liverneaux, P

2014-10-01

464

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

465

40 CFR 60.41Da - Definitions.  

Code of Federal Regulations, 2010 CFR

...purpose of supplying more than one-third...output capacity and more than 25 MW net-electrical...power distribution system for sale. Also...by charging the particles using an electrostatic...transporting the particles into a hopper...desulfurization system cannot be reduced...system to one or more electrical...

2010-07-01

466

40 CFR 60.41Da - Definitions.  

Code of Federal Regulations, 2011 CFR

...purpose of supplying more than one-third...output capacity and more than 25 MW net-electrical...power distribution system for sale. Also...by charging the particles using an electrostatic...transporting the particles into a hopper...desulfurization system cannot be reduced...system to one or more electrical...

2011-07-01

467

Biogeochemical Indicators of Paleoenvironmental Changes in a Humid Region of Amazonia (Lagoa da Pata, Sao Gabriel da Cachoeira)  

NASA Astrophysics Data System (ADS)

Analysis of four sediment core collected in Lagoa da Pata lake show significant changes in the environmental history of Amazonia during the last 40,000 years. The Lagoa da Pata Lake (0°17'S, 66°40'W) is located on the top of the Morro dos Seis Lagos, an isolated hill in the extensive forested plane surface of high Rio Negro basin. The climate in the region presents mean annual precipitation around 3000 mm without dry season. Three distinct sections are clearly identified in the LPT III, LPT IV and LPT V cores. They consist of upper and lower organic-rich layers, separated by a clastic layer which represents a short period of rapid accumulation around 18 ka BP. Analysis of the organic matter composition by d13C and d15N, total Carbon and Nitrogen, sedimentary chlorophyll concentration and organic matter petrography show three different phases related to organic matter deposition. Between, at least 46,000 and 31,000 14C yr B.P., the lake presented a high water level attested by high accumulation rates of organic carbon. Values of d13C (around -32%) associated to high C/N ratio demonstrate a lignocellulosic material contribution in this phase; the second phase between the 31000 yr 14C B.P. and 18000 14C B.P. is characterised by a lower productivity attested by low sedimentary chlorophyll and total organic carbon values. The d13C values increase with medium values around -28% that may correspond to an input of organic matter rich in C4 plants (grasses). The sedimentation rate decreases significantly. High charcoal fluxes were observed in this period. At around 18000 14C yr BP, there appears to have been a sudden input of clastic material. This is represented by a sandy facies, which exhibits lower carbon contents. From 18000 14C yr B.P. to the present time occurred an increase in lacustrine productivity marked by an increase in carbon and chlorophyll derivate accumulation rates. The C/N values dropped indicting an algae organic matter contribution. It probably corresponds to a lake level rise increasing the production of the system. Increases in charcoal deposition were observed during the upper and medium Holocene. This project is part of the PROFIX/CNPq (processo 54086/01-5) and CNPq (Brazil)-IRD(France) project "PALEOTROPICA" .

Cordeiro, R. C.; Turcq, B.; Mendes, L. G.; Azeredo, J. B.; Moura, M. S.; de Oliveira, A. R.; Monteiro, F.; Santelli, R. E.

2004-12-01

468

The Biological Function of DMP-1 in Osteocyte Maturation Is Mediated by Its 57-kDa C-terminal Fragment  

PubMed Central

Dentin matrix protein 1 (DMP-1) is a key molecule in controlling osteocyte formation and phosphate homeostasis. Based on observations that full-length DMP-1 is not found in bone, but only cleaved fragments of 37 and 57 kDa are present, and in view of the finding that mutations in the 57-kDa fragment result in disease, we hypothesized that the 57-kDa C-terminal fragment is the functional domain of DMP-1. To test this hypothesis, a 3.6-kb type I collagen promoter was used to express this 57-kDa C-terminal fragment for comparison with full-length DMP-1 in Dmp1 null osteoblasts/osteocytes. Not only did expression of the full-length DMP-1 in bone cells fully rescue the skeletal abnormalities of Dmp1 null mice, but the 57-kDa fragment also had similar results. This included rescue of growth plate defects, osteomalacia, abnormal osteocyte maturation, and the abnormal osteocyte lacunocanalicular system. In addition, the abnormal fibroblast growth factor 23 (FGF-23) expression in osteocytes, elevated circulating FGF-23 levels, and hypophosphatemia were rescued. These results show that the 57-kDa C-terminal fragment is the functional domain of DMP-1 that controls osteocyte maturation and phosphate metabolism. © 2011 American Society for Bone and Mineral Research. PMID:20734454

Lu, Yongbo; Yuan, Baozhi; Qin, Chunlin; Cao, Zhengguo; Xie, Yixia; Dallas, Sarah L; McKee, Marc D; Drezner, Marc K; Bonewald, Lynda F; Feng, Jian Q

2011-01-01

469

Circumstellar features in hot DA white dwarfs  

E-print Network

We present a phenomenological study of highly ionised, non-photospheric absorption features in high spectral resolution vacuum ultraviolet spectra of 23 hot DA white dwarfs. Prior to this study, four of the survey objects (Feige 24, REJ 0457-281, G191-B2B and REJ 1614-085) were known to possess these features. We find four new objects with multiple components in one or more of the principal resonance lines: REJ 1738+665, Ton 021, REJ 0558-373 and WD 2218+706. A fifth object, REJ 2156-546 also shows some evidence of multiple components, though further observations are required to confirm the detection. We discuss possible origins for these features including ionisation of the local interstellar environment, the presence of material inside the gravitational well of the white dwarf, mass loss in a stellar wind, and the existence of material in an ancient planetary nebula around the star. We propose ionisation of the local interstellar medium as the origin of these features in G191-B2B and REJ 1738+665, and demonstrate the need for higher resolution spectroscopy of the sample, to detect multiple ISM velocity components and to identify circumstellar features which may lie close to the photospheric velocity.

N. P. Bannister; M. A. Barstow; J. B. Holberg; F. C. Bruhweiler

2003-01-13

470

PODER JUDICIRIO TRIBUNAL DE JUSTIA DO ESTADO DA BAHIA  

E-print Network

Santos 10001739 Abraao Barreto Cordeiro 10002343 Abraão França Didier 10006467 Acacia da Costa do Amor Cardoso 10003003 Acacia de Oliveira Nunes 10002080 Acacia Regina Soares de Sa 10010774 Acacio Alves

Maier, Rudolf Richard

471

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

472

UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO  

E-print Network

professores substitutos10 Roseli Iolanda da Cunha. Justificaram ausência as professoras Graziela Maria Beretta 1 para classe DIII nível 2. A relatora do processo, professora34 Graziela Maria Beretta López, tem o

Floeter, Sergio Ricardo

473

Ministrio da Educao Universidade Federal do Paran -UFPR  

E-print Network

ESPIRITO SANTO ANE CAROLINE COSTA RODRIGUES ANGELA JEANE SALLES RODRIGUES ANIBIO PACHECO ANTONIO CARLOS SILVA CLAUDIA MARIA WITT CLAUDINEI RODRIGUES FERRAZ CLAUDIO AMALIO DE SOUZA CLEITON SOFIENTINI DOS SANTOS CLEYCOM MAICHEL RODRIGUES DA ROSA CRISTHIANE APFELGRUN CRISTIANE GASPARETO STADLER CRISTIANE

Paraná, Universidade Federal do

474

XXIV Congresso Brasileiro de Biblioteconomia, Documentao e Cincia da Informao  

E-print Network

Londrina Eliane M. S. Jovanovich emsjovanovich@uel.br Universidade Estadual de Londrina RESUMO Muito se-se verificar o que o Sistema de Bibliotecas da Universidade Estadual de Londrina - SB/UEL está fazendo para

Paraná, Universidade Federal do

475

Ministrio da Cincia e Tecnologia Instituto Nacional de Pesquisas Espaciais  

E-print Network

Ministério da Ciência e Tecnologia Instituto Nacional de Pesquisas Espaciais Centro Regional Sul de atividades de geração e transferência de tecnologia e na formação de recursos humanos; 3.4 Manter vínculo

476

ISSN 0103-9741 Monografias em Cincia da Computao  

E-print Network

(cfelicissimo, sardinha, lucena)@inf.puc-rio.br Abstract. Inspired by the Tim Berners-Lee's vision of a Semantic. Inspirado pela visão de Tim Berners-Lee da Web Semântica, este trabalho vi- as apresentar uma aproximação

Endler, Markus

477

© InternationalJournal.org Force Field: Vitruvian Man and the Physics of Sensory Perception  

E-print Network

Abstract: Leonardo Da Vinci’s Vitruvian Man, a diagrammatical design of the human form in relation to its geometrical proportions, is one of the most enduring images of the European Renaissance. Vitruvian Man provides a key to the proportions of Vitruvius’s architectural drawings contained in his Ten Books on Architecture, De Architectura. (The description of Vitruvian Man is formed from Book Three in particular). Completed in 1490, it was fashioned after drawings of the Roman architect/engineer Vitruvius who lived in 1BCE. Da Vinci sought to portray the symmetry of human form as both measurer and agent of civilisation. Da Vinci placed his diagrammatical interpretations of Vitruvius’s writings inside a square and overlaid this with a circle representing a secular design of the human form in three-dimensional space. However, Vitruvian Man depicts not only a relationship of geometrical proportion but also a human ‘performance model’. Whether Leonardo thought that the mathematical delineations pointed to an underlying implicate order, he did not directly write on the subject. Vitruvian Man represents the dividing moment between the natural world and the world of modern civil engineering and the human architectural environment. It is a founding document for the evolution of the Newtonian age and the recognition of humankind as the centre of civilisation.

Luke Strongman; The Open; Polytechnic New Zeal

478

[Severe acute asthma: isoflurane administration via AnaConDa™, is it safe?].  

PubMed

Standard treatments against severe acute asthma can be insufficient and need salvation treatments, such as isoflurane delivery. These treatments have not been much assessed and could lead to unrecognized side-effects. We report the case of a young man who suffered from intracranial hypertension associated with severe hypercapnia during the delivery of isoflurane via the system AnaConDa™ or Anaesthetic Conserving Device™ (ACD) (Sedama Medical). The rising of PaCO(2) appears to be linked to an ACD-dependent increase in the dead space. PMID:21146349

Chaillan, M; Badin, J; Kerforne, T; Voultoury, J; Pinsard, M

2011-01-01

479

Longitudinal quadrupole instability and control in the Frascati DA?NE electron ring  

NASA Astrophysics Data System (ADS)

A longitudinal quadrupole (q-pole) instability was limiting the maximum stable current in the DA?NE e- ring at a level of ˜700 800 mA. In order to investigate the phenomenon, the instability threshold has been measured as a function of various machine parameters as radio frequency voltage (Vrf), momentum compaction (?c), number of bunches, fill pattern, etc. An unexpected interaction with the longitudinal feedback system, built to control the dipole motion, has been found and a proper feedback tuning has allowed increasing the threshold. The maximum stable beam current has now exceeded 1.80A and it is no longer limited by the quadrupole instability.

Drago, A.; Gallo, A.; Ghigo, A.; Zobov, M.; Fox, J. D.; Teytelman, D.

2003-05-01

480

Ministro da Educao visita a China para estabelecer parcerias O Ministro da Educao e Cincia, Nuno Crato, vai estar durante a prxima semana na China, na sequncia da assinatura de  

E-print Network

Patrocínio Ministro da Educação visita a China para estabelecer parcerias O Ministro da Educação e Ciência, Nuno Crato, vai estar durante a próxima semana na China, na sequência da assinatura de Memorando de Entendimento que prevê parcerias na área da ciência e tecnologia. Nuno Crato parte segunda

Instituto de Sistemas e Robotica

481

MICORRIZA ARBUSCULAR EM ESPÉCIES ARBÓREAS NATIVAS DA BACIA DO RIO TIBAGI, PARANÁ  

Microsoft Academic Search

RESUMO: Relata-se a incidência da colonização de micorriza arbuscular (MA) e a resposta à inocu- lação em 81 espécies arbóreas nativas da bacia do rio Tibagi (PR), em condições de casa de vegetação. Também é relatada a incidência da colonização de MA em 51 espécies arbóreas nativas coletadas em áreas em início de sucessão arbórea e no interior da floresta

Waldemar Zangaro; Silvio M. A. Nisizaki; Juliana C. B. Domingos; Emilia M. Nakano

482

32 CFR 635.23 - DA Form 4833 (Commander's Report of Disciplinary or Administrative Action).  

Code of Federal Regulations, 2014 CFR

...2014-07-01 2013-07-01 true DA Form 4833 (Commander's Report of Disciplinary...REPORTING Offense Reporting § 635.23 DA Form 4833 (Commander's Report of Disciplinary...Administrative Action). (a) Use. DA Form 4833 is used with DA Form 3975...

2014-07-01

483

32 CFR 635.23 - DA Form 4833 (Commander's Report of Disciplinary or Administrative Action).  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2011-07-01 true DA Form 4833 (Commander's Report of Disciplinary...REPORTING Offense Reporting § 635.23 DA Form 4833 (Commander's Report of Disciplinary...Administrative Action). (a) Use. DA Form 4833 is used with DA Form 3975...

2012-07-01

484

32 CFR 635.23 - DA Form 4833 (Commander's Report of Disciplinary or Administrative Action).  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false DA Form 4833 (Commander's Report of Disciplinary...REPORTING Offense Reporting § 635.23 DA Form 4833 (Commander's Report of Disciplinary...Administrative Action). (a) Use. DA Form 4833 is used with DA Form 3975...

2011-07-01

485

32 CFR 635.23 - DA Form 4833 (Commander's Report of Disciplinary or Administrative Action).  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false DA Form 4833 (Commander's Report of Disciplinary...REPORTING Offense Reporting § 635.23 DA Form 4833 (Commander's Report of Disciplinary...Administrative Action). (a) Use. DA Form 4833 is used with DA Form 3975...

2013-07-01

486

32 CFR 635.23 - DA Form 4833 (Commander's Report of Disciplinary or Administrative Action).  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 true DA Form 4833 (Commander's Report of Disciplinary...REPORTING Offense Reporting § 635.23 DA Form 4833 (Commander's Report of Disciplinary...Administrative Action). (a) Use. DA Form 4833 is used with DA Form 3975...

2010-07-01

487

Ministrio da Educao e Desporto UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

DA SA�DE Departamentos de Patologia Básica e Patologia Médica Pós-graduação em Microbiologia, Parasitologia e Patologia EDITAL 2012 MESTRADO A Coordenação do Programa de Pós-graduação em Microbiologia, Parasitologia e Patologia (PGMPP) do Departamento de Patologia Básica da Universidade Federal do Paraná, faz

Paraná, Universidade Federal do

488

Modelling OBEX over IrDA Protocol Stack  

Microsoft Academic Search

OBEX, developed by IrDA, is a session layer protocol adopted as the framework for wireless object exchange for wireless transports including indoor Infrared and Bluetooth. In this paper, a mathematical model is developed which leads to derivation of the OBEX throughput over the IrDA protocol stack. The model allows the evaluation of the impact of the IrLAP link layer parameters,

Pi Huang; A. C. Boucouvalas

489

Novas determinações dos parâmetros atmosféricos das estrelas anãs brancas DA  

NASA Astrophysics Data System (ADS)

Nós temos selecionado uma amostra de estrelas anãs brancas DA (atmosfera de hidrogênio) a partir dos índices de Strömgren cujos valores estão próximos a região de instabilidade das estrelas anãs brancas DA variáveis, as chamadas estrelas DAV ou ZZ Ceti. O objetivo é determinar os parâmetros fundamentais (temperatura efetiva, Teff, aceleração da gravidade, log g, e massa) destas estrelas para verificar quais os parâmetros estelares estão envolvidos com o mecanismo de pulsação das estrelas DAV. Nós obtemos, até agora, mais de 120 espectros óticos de estrelas DA. Entre as estrelas selecionadas há 20 estrelas variáveis (DAV). Assim, podemos verificar se existem ou não estrelas não variáveis dentro da faixa de instabilidade das estrelas ZZ Ceti. Neste trabalho nós apresentamos a determinação dos parâmetros atmosféricos (temperatura efetiva, Teff, e aceleração da gravidade, log g) das estrelas anãs brancas DA usando os novos modelos de atmosfera ML2/a = 0.6. Estes modelos têm sido utilizados recentemente por fornecerem uma excelente consistência interna na determinação das temperaturas nas regiões do ultra-violeta e ótico. Os parâmetros atmosféricos são determinados espectroscopicamente através da comparação do fluxo de energia das linhas de Balmer (Hb à H9) entre os espectros observados e sintéticos (gerados pelos modelos de atmosfera). As temperaturas obtidas com os novos modelos são, em geral, menores (~ 1000 K menos) que as temperaturas determinadas anteriormente, com modelos ML1. Os valores de log g não mudaram significativamente (menos de 10%). A faixa de instabilidade das DAVs está entre 11000 e 13000 K, consistente com dados de outros autores.

Giovannini, O.; Costa, A. F. M.; Kepler, S. O.

2003-08-01

490

UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO  

E-print Network

DESENVOLVIMENTO INFANTIL DA UFSC O Conselho de Unidade do Centro de Ciências da Educação manifesta sua preocupação instância, parecem apontar para a decisão de municipalizar as Unidades de Educação Infantil das Universidades Federais, entre elas o Núcleo de Desenvolvimento Infantil (NDI/UFSC). Tal medida, em se

Floeter, Sergio Ricardo

491

UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS DA EDUCAO  

E-print Network

Lopes Denise Lopes da Conceição e Paula Zinate Mendonça da Silva Março Maio Pedagogia Educação Infantil Francine de Lira Mariot Maio Junho Pedagogia Educação Infantil �ngela Scalabrin Coutinho 1º semestre UFSC INFANTIL ESTÁGIOS CURRICULARES OBRIGAT�RIOS/2011 PERÍODO MATUTINO Curso de Graduação e Orientador

Floeter, Sergio Ricardo

492

Model calculations on the band structures of one-dimensional mixed donor-acceptor systems  

NASA Astrophysics Data System (ADS)

The band structures of one-dimensional donor-acceptor (D-A) stacks have been studied by means of the crystal-orbital (CO) formalism based on the tight-binding approximation. The model polymers of the present study are composed of quinhydrone moieties (10 and 11) where the donor and acceptor groups show either a parallel or a perpendicular orientation. These idealized systems have been adopted as models for D-A polymers in the recently synthesized class of D-A phanes. The strength of the D-A interaction has been modified due to alterations of the D-A distances within the unit cells and due to modifications in the effective electronegativity of the active groups (hydroxyl and carbonyl). The computational framework is a semiempirical intermediate neglect of differential overlap (INDO) CO formalism with a variable model Hamiltonian that allowed the simulation of the different types of D-A interactions (weak versus strong D-A pairs). An insulator-metal transition is predicted in the 0° arrangement of 10 for short D-A distances and larger differences in the electronegativities of both fragments. The 90° conformation shows an avoided crossing between the highest filled and the lowest unfilled ?(k) curves. This leads to a finite band gap for all studied interaction conditions. The band structures, the charge transfer in the D-A stacks, and the excited-state properties of 10 and 11 are analyzed as a function of the D-A geometry (distance, mutual orientation) and as a function of the strength of the D-A pairs. Semiquantitative solid-state models are compared with the INDO CO data, synthetic strategies for the design of D-A phanes with small (vanishing) band gaps are formulated, and various solid-state effects encountered in related low-dimensional D-A systems are briefly discussed.

Böhm, Michael C.; Vogler, Helmut

1983-09-01

493

Endogenous ?-Opioid Receptor Systems Regulate Mesoaccumbal Dopamine Dynamics and Vulnerability to Cocaine  

PubMed Central

Genetic and pharmacological approaches were used to examine ?-opioid receptor (KOR-1) regulation of dopamine (DA) dynamics in the nucleus accumbens and vulnerability to cocaine. Microdialysis revealed that basal DA release and DA extraction fraction (Ed), an indirect measure of DA uptake, are enhanced in KOR-1 knock-out mice. Analysis of DA uptake revealed a decreased Km but unchanged Vmax in knock-outs. Knock-out mice exhibited an augmented locomotor response to cocaine, which did not differ from that of wild-types administered a behavioral sensitizing cocaine treatment. The ability of cocaine to increase DA was enhanced in knock-outs, whereas c-fos induction was decreased. Although repeated cocaine administration to wild types produced behavioral sensitization, knock-outs exhibited no additional enhancement of behavior. Administration of the long-acting KOR antagonist nor-binaltorphimine to wild-type mice increased DA dynamics. However, the effects varied with the duration of KOR-1 blockade. Basal DA release was increased whereas Ed was unaltered after 1 h blockade. After 24 h, release and Ed were increased. The behavioral and neurochemical effects of cocaine were enhanced at both time points. These data demonstrate the existence of an endogenous KOR-1 system that tonically inhibits mesoaccumbal DA neurotransmission. Its loss induces neuroadaptations characteristic of “cocaine-sensitized” animals, indicating a critical role of KOR-1 in attenuating responsiveness to cocaine. The increased DA uptake after pharmacological inactivation or gene deletion highlights the plasticity of mesoaccumbal DA neurons and suggests that loss of KOR-1 and the resultant disinhibition of DA neurons trigger short- and long-term DA transporter adaptations that maintain normal DA levels, despite enhanced release. PMID:15901784

Chefer, Vladimir I.; Czyzyk, Traci; Bolan, Elizabeth A.; Moron, Jose

2006-01-01

494

Estudo de não gaussianidade nas anisotropias da RCF medidas Wmap  

NASA Astrophysics Data System (ADS)

A investigação do campo de flutuações da Radiação Cósmica de Fundo (RCF) pode oferecer um importante teste para os modelos cosmológicos que descrevem a origem e a evolução das flutuações primordiais. De um lado, apresenta-se o modelo inflacionário que prevê um espectro de flutuações adiabáticas distribuídas segundo uma gaussiana e, de outro, os modelos de defeitos topológicos (dentre outros) que descrevem um mecanismo para a geração de flutuações de isocurvatura que obedecem a uma distribuição não gaussiana. Este trabalho tem como objetivo caracterizar traços do modelo não gaussiano de campo misto (entre flutuações adiabáticas e de isocurvatura) nos mapas do Wilkinson Microwave Anisotropy Probe (WMAP). Simulações das anisotropias da RCF no contexto de mistura indicam traços marcantes na distribuição das flutuações de temperatura, mesmo quando consideradas pequenas contribuições do campo de isocurvatura (da ordem de 0.001). O efeito da mistura entre os campos resulta na transferência de potência de flutuações em escalas angulares intermediárias para flutuações em pequenas escalas angulares. Este efeito pode ser caracterizado pela relação entre as amplitudes dos primeiros picos acústicos no espectro de potência da RCF. Neste trabalho, investigamos a contribuição do campo de isocurvatura, no contexto de mistura, sobre as observações recentes da RCF realizadas pelo WMAP. As previsões do modelo de campo misto, uma vez confrontadas com as observações em pequenas escalas angulares, podem ajudar a revelar a natureza das flutuações primordiais.

Andrade, A. P. A.; Wuensche, C. A.; Ribeiro, A. L. B.

2003-08-01

495

Variação da qualidade da madeira entre grupos fenotípicos de clones de Eucalyptus urophylla S.T. Blake da Ilha de Flores, Indonesia Wood quality variation among phenotypic groups of clones Eucalyptus urophylla S.T. Blake from Flores Island, Indonesia  

Microsoft Academic Search

RESUMO: O objetivo do presente trabalho foi estudar parâmetros de qualidade da madeira (densidade básica, comprimento, largura, diâmetro e espessura da parede das fibras) de clones de Eucalyptus urophylla, da Ilha de Flores, Indonésia, agrupados pelas características silviculturais e botânicas. A população base constituiu-se de um banco clonal, com 6 anos de idade, implantado no Horto Florestal Nossa Senhora Aparecida,

Osmar Francisco Ruy; Mário Ferreira; Mário Tomazello Filho

496

ATA N. 99 / COLEGIADO / 2011 Universidade Federal de Santa Catarina, Centro de Cincias da Educao. Ata da nonagsima1  

E-print Network

, Giseli Day, Graziela Maria Beretta Lopez, Jane Cunha Pacheco6 Derner, Jodete Bayer Gommes Fullgraf doutorado, da professora Margareth Feiten Cisne. Relatora Graziela Maria Beretta18 Lopez. Aprovado. Terceiro

Floeter, Sergio Ricardo

497

ADVOCACIA-GERAL DA UNIO Concurso pblico para provimento de cargos vagos de Advogado da Unio de 2 Categoria  

E-print Network

Costa Neto, 68.50 / 10005223, Alvaro Goncalves Duarte, 71.50 / 10000817, Alvaro Luis Meneses Brandao e Agostinho da Silveira Reis, 66.25 / 10007168, Andre Luiz Cavalcanti Silveira, 73.00 / 10000979, Andre Luiz

Maier, Rudolf Richard

498

Dopaminergic system dysfunction in recreational dexamphetamine users.  

PubMed

Dexamphetamine (dAMPH) is a stimulant drug that is widely used recreationally as well as for the treatment of attention-deficit hyperactivity disorder (ADHD). Although animal studies have shown neurotoxic effects of dAMPH on the dopaminergic system, little is known about such effects on the human brain. Here, we studied the dopaminergic system at multiple physiological levels in recreational dAMPH users and age, gender, and IQ-matched dAMPH-naïve healthy controls. We assessed baseline D2/3 receptor availability, in addition to changes in dopamine (DA) release using single-photon emission computed tomography and DA functionality using pharmacological magnetic resonance imaging, following a dAMPH challenge. Also, the subjective responses to the challenge were determined. dAMPH users displayed significantly lower striatal DA D2/3 receptor binding compared with healthy controls. In dAMPH users, we further observed a blunted DA release and DA functionality to an acute dAMPH challenge, as well as a blunted subjective response. Finally, the lower D2/3 availability, the more pleasant the dAMPH administration was experienced by control subjects, but not by dAMPH users. Thus, in agreement with preclinical studies, we show that the recreational use of dAMPH in human subjects is associated with dopaminergic system dysfunction. These findings warrant further (longitudinal) investigations and call for caution when using this drug recreationally and for ADHD. PMID:25394786

Schrantee, Anouk; Václav?, Lena; Heijtel, Dennis F R; Caan, Matthan W A; Gsell, Willy; Lucassen, Paul J; Nederveen, Aart J; Booij, Jan; Reneman, Liesbeth

2015-01-01

499

Humoral immune response against 38-kDa and 16-kDa mycobacterial antigens in tuberculosis  

Microsoft Academic Search

Several ELISA tests based on mycobacterial antigens have been used for the rapid diagnosis of tuberculosis (TB), although demonstration of Mycobacterium tuberculosis in a smear or culture is the most reliable method. In the present study, the diagnostic value of 16-kDa and 38- kDa mycobacterial antigens was investigated in patients who were diagnosed with tuberculosis by clinical and\\/or bacteriological findings

G. Senol; O. F. Erer; Y. A. Yalcin; M. Coskun; A. T. Gunduz; C. Bicmen; M. Ertas; S. A. Ozkan

2006-01-01

500

Estudo da região HII galática NGC 2579  

NASA Astrophysics Data System (ADS)

Desde a descoberta dos gradientes de abundância química em galáxias espirais, as regiões HII galáticas têm sido intensamente estudadas com o objetivo de determinar a forma do gradiente de abundância química na Via-Láctea. Entretanto, a forma do gradiente galático continua controversa e existem muitas regiões HII que continuam inexploradas. A região HII galática NGC 2579 é um objeto que aparece em imagens Ha, como uma pequena mancha brilhante de aproximadamente 2 segundos de arco de diâmetro a 20 segundos de arco ao leste de RCW 20, sendo NGC 2579 muitas vezes confundida com esta última. Apesar de seu alto brilho superficial, NGC 2579 é um objeto pouco estudado provavelmente por problemas de identificação deste objeto. Como parte de um projeto de reavaliação dos gradientes de abundância química das regiões HII na Via-Láctea, estamos realizando um estudo extensivo das propriedades físicas básicas como temperatura eletrônica, densidade eletrônica e composição química da região HII galática NGC 2579. Analisamos dados espectrofotométricos de fenda longa na faixa de 3700Å a 7750Å obtidos com o telescópio de 1.52 m do ESO, Chile, em 2002. Determinamos a temperatura eletrônica usando a razão entre as linhas do [OIII] (l4959+l5007/l4363) e a densidade eletrônica pela razão entre as linhas do [SII] (l6716/l6731). As abundâncias químicas do O, N, Cl, S, Ne e He foram determinadas. Realizamos um estudo de imagens fotométricas nas bandas UBVRI obtidas em 2000 no observatório astronômico San Pedro Mártir, México, para identificar e classificar as estrelas ionizantes de NGC 2579 e determinar a distância deste objeto.

Riffel, R.; Copetti, M. V. F.

2003-08-01