Leonardo da Vinci's foot: historical evidence of concept.

Science.gov (United States)

Jastifer, James R; Toledo-Pereyra, Luis H

2012-10-01

Leonardo da Vinci (1452-1519), world-renowned Italian renaissance master, is known for his contributions to, and broad interests in science and art. The objective of this work is to demonstrate the extent of his science by applying the use of his concepts to current models of foot and ankle mechanics. The art and science of Leonardo Da Vinci were extensively analyzed by reviewing his original drawings and hand written notebooks as well as their English translation. Current medical journals including the topics of foot, ankle, and biomechanics were reviewed for modern evidence and application of his concepts. The library of Michigan State University and the electronic library of the Royal Library at Windsor Castle were extensively utilized. From the depths of Santa Maria Nuova Hospital in Florence and Santo Spirito Hospital in Rome, through his commentary and anatomical drawings of around 30 cadaver dissections he performed, Leonardo da Vinci expressed his concept of foot and ankle anatomy and mechanics. He laid forth concepts, which vary little from current theories including those of proportion, statics and joint stability, sesamoid biomechanics, and structural support of the foot. Leonardo da Vinci, by combining an interest in anatomy and a gift of genius and artistic ability laid a foundation of foot and ankle anatomy and mechanics that have been applied in modern clinical sciences. Leonardo in this way made important contributions to the practice of foot and ankle orthopedics.

[Autobiography of modern acupuncturist Yu Shu-zhuang].

Science.gov (United States)

Li, Jia-jian' i; Guo, Jing; Yu, Zhen-zhong; Wang, Lin-peng

2014-11-01

Professor YU Shu-zhuang is a distinguished acupuncturist in China. He has practiced the TCM acupuncture-moxibustion clinical, educational and scientific research for 60 years in his life. In clinic, he summarized the experiences "five-ming first"; in treatment, he insisted "dredging" and "regulating", protecting the function of spleen and stomach, and needles should be less but specific. In the meanwhile, he made a deep study on the function and clinical effects of specific acupoints, and used the research results of propagated sensation along channel to guide clinical treatment, forming his special academic points. Professor YU has educated a great number of acupuncture-moxibustion talents in China and foreign countries, making great contribution to the popularization of acupuncture-moxibustion in the worldwide.

Leonardo da Vinci and the first hemodynamic observations.

Science.gov (United States)

Martins e Silva, J

2008-02-01

Leonardo da Vinci was a genius whose accomplishments and ideas come down to us today, five centuries later, with the freshness of innovation and the fascination of discovery. This brief review begins with a summary of Leonardo's life and a description of the most important works of art that he bequeathed us, and then concentrates on his last great challenge. There was a point at which Leonardo's passion for art gave way to the study of human anatomy, not only to improve his drawing but to go beyond what had been simply a representation of form to understand the underlying functioning. Among his many interests, we focus on his study of the heart and blood vessels, which he observed carefully in animals and human autopsies, and reproduced in drawings of great quality with annotations of astonishing acuteness. The experience that he had acquired from observing the flow of water in currents and around obstacles, and the conclusions that he drew concerning hydrodynamics, were central to his interpretation of the mechanisms of the heart and of blood flow, to which he devoted much of his time between 1508 and 1513. From these studies, immortalized in drawings of great clarity, come what are acknowledged to be the first hemodynamic records, in which Leonardo demonstrates the characteristics of blood flow in the aorta and great vessels and the importance of blood reflux and the formation of eddies in the sinus in aortic valve his assiduous and careful observations, and his subsequent deductions, Leonardo put forward detailed findings on hemodynamic questions that advanced technology has only recently enabled us to confirm.

Leonardo da Vinci and His Contributions to Cartography

Directory of Open Access Journals (Sweden)

Branko Puceković

2013-12-01

Full Text Available The archetypal Renaissance figure Leonardo da Vinci was truly a universal man (Ital. – uomo universale. There is no area of human activity that failed to attract his attention, or that does not bear a trace of his deliberations. In the field of fine art, Leonardo is famous for his masterpieces: the Mona Lisa, the Last Supper, the Virgin of the Rocks, and other, unfinished works, for example, St. Jerome in the Wilderness, and the Adoration of the Magi. He did not leave any works of sculpture, though he did create sketches and drawings. His legacy includes approximately 13,000 sheets of notes and drawings of anatomy, architecture, war and flying machines, plants and animals, all annotated in a reversed mirror-script. In his works of art, he brought his compositions to perfection by using the principles of perspective and the techniques of chiaroscuro and sfumato. Leonardo designed war machines and produced several plans and topographical maps for the powerful men of his time, under whose patronage he worked, such as dukes, kings and popes. This article presents a brief account of his most famous cartographical works: the plan of Imola, three topographic maps of Tuscany, the Chiana valley, the Pontine Marshes and western Tuscany, and a world map (Mappa Mundi. Leonardo skilfully made use of his fascination with landscapes, incorporating them as backdrops in his masterpieces.

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

Science.gov (United States)

Ciseri, Lorenzo Montemagno

2014-01-01

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

Valgusfestival Tallinnas / Leonardo Meigas

Index Scriptorium Estoniae

Meigas, Leonardo, 1952-

2011-01-01

Valgusfestivalidest, -installatsioonidest ja -etendustest maailmas. MTÜ Valgusfestival osaleb tänavu projektis "Lux scientia", millest võtavad osa Eesti, Poola ja Suurbritannia kunstnikud, kuraatorid ja teadlased. 22.-25. sept.-ni saab installatsioonidega tutvuda valgusfestivalil Tallinnas. Esitusele tulevatest teostest "60 sek katedraal" (Dominik Lejman, Poola), "Pleenum" (Simeon Nelson, Suurbritannia) ja "Hartmanni võre" (Leonardo Meigas, Eesti)

Leonardo da Vinci: the search for the soul.

Science.gov (United States)

Del Maestro, R F

1998-11-01

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.

The real code of leonardo da vinci.

Science.gov (United States)

Ose, Leiv

2008-02-01

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. this was the real Code of Leonardo da Vinci.

The Real Code of Leonardo da Vinci

Science.gov (United States)

Ose, Leiv

2008-01-01

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

Leonardo da Vinci and the Downburst.

Science.gov (United States)

Gedzelman, Stanley David

1990-05-01

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

Leonardo da Vinci y la nutrición humana

OpenAIRE

Carretero Gómez, Mª Begoña

2011-01-01

En esta experiencia trabajamos el tema la nutrición humana con una perspectiva diferente. Para ello hemos utilizado el libro de cocina “Notas de cocina de Leonardo da Vinci” de Shelagh and Routh, como texto base del que hemos extraído diferentes fragmentos, recetas y variada información de cómo era la forma de alimentarse y nutrirse en el Renacimiento. Se han realizado comparaciones entre la época actual y la de Leonardo. Para redondear la experiencia hemos cocinado algunas receta...

LEONARDO DA VINCI AND THE ORIGIN OF SEMEN.

Science.gov (United States)

Noble, Denis; DiFrancesco, Dario; Zancani, Diego

2014-12-20

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

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

Science.gov (United States)

Schultheiss, D; Grünewald, V; Jonas, U

1999-06-01

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.

Leonardo da Vinci y la nutrición humana

OpenAIRE

Mª Begoña Carretero Gómez

2011-01-01

En esta experiencia trabajamos el tema la nutrición humana con una perspectiva diferente. Para ello hemos utilizado el libro de cocina "Notas de cocina de Leonardo da Vinci" de Shelagh and Routh, como texto base del que hemos extraído diferentes fragmentos, recetas y variada información de cómo era la forma de alimentarse y nutrirse en el Renacimiento. Se han realizado comparaciones entre la época actual y la de Leonardo. Para redondear la experiencia hemos cocinado algunas recetas extraídas ...

Leonardo da Vinci y la nutrición humana

Directory of Open Access Journals (Sweden)

Mª Begoña Carretero Gómez

2011-01-01

Full Text Available En esta experiencia trabajamos el tema la nutrición humana con una perspectiva diferente. Para ello hemos utilizado el libro de cocina “Notas de cocina de Leonardo da Vinci” de Shelagh and Routh, como texto base del que hemos extraído diferentes fragmentos, recetas y variada información de cómo era la forma de alimentarse ynutrirse en el Renacimiento. Se han realizado comparaciones entre la época actual y la de Leonardo. Para redondear la experiencia hemos cocinado algunas recetas extraídas del libro.

Leonardo da Vinci y la nutrición humana

Directory of Open Access Journals (Sweden)

Mª Begoña Carretero Gómez

2011-01-01

Full Text Available En esta experiencia trabajamos el tema la nutrición humana con una perspectiva diferente. Para ello hemos utilizado el libro de cocina "Notas de cocina de Leonardo da Vinci" de Shelagh and Routh, como texto base del que hemos extraído diferentes fragmentos, recetas y variada información de cómo era la forma de alimentarse y nutrirse en el Renacimiento. Se han realizado comparaciones entre la época actual y la de Leonardo. Para redondear la experiencia hemos cocinado algunas recetas extraídas del libro.

Leonardo aitab mahetootjaid / Aret Vooremäe

Index Scriptorium Estoniae

Vooremäe, Aret, 1970-

2005-01-01

Põllumajanduskonsulentide koolitamisest Balti põllumajandusülikoolides Leonardo da Vinci projekti raames. Projekti käigus töötatakse koostöös Saksamaa ja Inglismaa partneritega välja õppematerjalid

[Regarding the Manuscript D " Dell' occhio " of Leonardo da Vinci].

Science.gov (United States)

Heitz, Robert F

2009-01-01

Leonardo da Vinci's Manuscript D consists of five double pages sheets, which, folded in two, comprise ten folios. This document, in the old Tuscan dialect and mirror writing, reveals the ideas of Leonardo on the anatomy of the eye in relation to the formation of images and visual perception. Leonardo explains in particular the behavior of the rays in the eye in terms of refraction and reflection, and is very mechanistic in his conception of the eye and of the visual process. The most significant innovations found in these folios are the concept of the eye as a camera obscura and the intersection of light rays in the interior of the eye. His texts nevertheless show hesitation, doubts and a troubled confusion, reflecting the ideas and uncertainties of his era. He did not share his results in his lifetime, despite both printing and etching being readily available to him.

Description of two new species of the Neoperla montivaga group (Plecoptera: Perlidae) from Guangxi Zhuang Autonomous Region, China.

Science.gov (United States)

Yang, Juan; Zhang, Sujiong; Li, Weihai

2017-03-05

The following two new species from Shiwandashan of Guangxi Zhuang Autonomous Region, China are described, Neoperla bicolor Yang, Zhang & Li, sp. nov. and N. muranyii Yang, Zhang & Li, sp. nov. The new species are compared with related congeners of their respective species subgroups.

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

Science.gov (United States)

Tyler, Christopher W.

2010-02-01

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

Eestisse jõuab Leonardo da Vinci arvatav autoportree

Index Scriptorium Estoniae

2010-01-01

Kadrioru Kunstimuuseumis eksponeeritakse 5.-12. veebruarini Leonardo da Vinci arvatavat autoportreed. Toimub maali pidulik avamine ja maali analüüse tutvustav rahvusvaheline konverents "Da Vinci kood" Tallinna Ülikoolis

Estudio del 'tener' según Gabriel Marcel y Leonardo Polo

OpenAIRE

Urabayen, J. (Julia)

2003-01-01

Estudio del idener» según Gabriel Marcel y Leonardo Polo.- El objetivo de este trabajo es estudiar el pensamiento de Gabriel Marcel y Leonardo Polo acerca de un rasgo esencial del ser humano, el tener, y la visión del hombre que se obtiene desde esta característica. Polo considera que existe una jerarquía en el tener, que puede adoptar tres formas: el tener corpóreo, el tener cognoscitivo y el tener habitual. Marcel establece una diferencia entre ser y tener, y vincula el tener...

Leonardo da Vinci's Geology: The Authenticity of The Virgin of the Rocks

Science.gov (United States)

Pizzorusso, Ann

2017-04-01

Viewed from a geological perspective, all of Leonardo's paintings and drawings reveal a remarkable fidelity to nature. The Virgin of the Rocks in the National Gallery in London (1495-1508), attributed to him, displays no such fidelity. If we compare it to the Virgin of the Rocks in the Louvre in Paris (1483-86) whose geological accuracy is astounding, we cannot help questioning whether Leonardo painted the background in the National Gallery work. Over the centuries, various arguments have called into question the attribution of the National Gallery painting to Leonardo. Scholars have analyzed the brush strokes, undertaken document searches and tried to prove definitively that Leonardo produced the National Gallery version. However, there have always been doubts, naysayers and many unanswered questions concerning its authenticity. The fact that attribution of the work has been the subject of such controversy throughout history suggests that new diagnostic means of determining authenticity is in order. A comparison of the representations of geological formations in the two paintings offers such means. It seems unlikely that the same person could have portrayed rock formations so accurately in the Louvre work and so incongruously in the National Gallery painting.

On the scientific work of Leonardo Caldarola

International Nuclear Information System (INIS)

1984-03-01

The present KfK report, dedicated to the early died Leonardo Caldorala, gives the full text of three important papers of L. Caldarola: 1) The balanced oscillator experiment; 2) Fuel-coolant interaction in fast reactors and 3) Coherent systems with multistate components. (RW)

Leonardo da Vinci (1452-1519)

Science.gov (United States)

Murdin, P.

2000-11-01

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

Võimalus osta Leonardo joonistus / Maria-Kristiina Soomre

Index Scriptorium Estoniae

Soomre, Maria-Kristiina, 1978-

2001-01-01

10. VII tuleb Londonis Christies'i oksjonil müügile Leonardo da Vinci etüüd ratsanikust, mis kuulub kunstniku poolelijäänud "Tarkade kummardamise" kompositsiooni ettevalmistavate etüüdide hulka. Müügihinnaks arvatakse kujunevat 3,5 miljonit naela.

Leonardo da Vinci õpiränne

Index Scriptorium Estoniae

2009-01-01

Leonardo da Vinci programmi raames viibisid välispraktikal Hollandis 2008. a. sügisel Kuressaare ametikooli 4. kursuse paadiehituse õpilased Keiti Kangur ja Kaspar Nõgu ning 2009. a. kevadel 3. kursuse paadiehituse õpilased Kaspar Kõiv, Karl Truutsi ja Martin Müürisepp. 2009 a. kevadel sooritasid praktika Küprosel toitlustusteeninduse eriala õpilased: Heldur Hillak, Rain Rohumägi ja Karel Raudsepp

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

Science.gov (United States)

Gerrits, Peter O; Veening, Jan G

2013-05-01

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. Copyright © 2012 Wiley Periodicals, Inc.

[Leonardo da Vinci and his studies on the human fetus and the placenta].

Science.gov (United States)

Cataldi, L; Fanos, V

2000-01-01

To review the accuracy of Leonardo's anatomical studies of the female external genitalia and the foetus, particularly those concerning the umbilical cord with its blood vessels. The anatomical drawings of Leonardo da Vinci which are now stored in the Windors Castle near London were reviewed and the accuracy of the details of the genital apparatus and foetus was evaluated. A written comment characterizes many of his drawings. He described accurately the position of the uterine blood vessels and the relationship between the pelvic organs. However his drawing and description of the female external genitalia and human placenta was incorrect because his understanding of it was inadequate. He believed that the human placenta had cotyledons like that of the ungulate uterus (drown side A of sheet 19). At the top of that sheet some Leonardo's details of the anatomic relationship are shown. In our opinion, Leonardo's misunderstanding is probably because he was only able to perform one anatomical dissection of a pregnant women and foetus and therefore his knowledge was limited. The resulting documentation of the pregnant women and foetus was therefore heavily supplemented with his enormous experience in animal anatomy.

Hidden sketches by Leonardo da Vinci revealed

Science.gov (United States)

Dumé, Belle

2009-02-01

Three drawings on the back of Leonardo da Vinci's The Virgin and Child with St Anne (circa 1508) have been discovered by researchers led by Michel Menu from the Centre de Recherche et de Restauration des Musées de France (C2RMF) and the Louvre Museum in Paris.

[Efficacy on nervous tinnitus of kidney deficiency treated with Zhuang medicine at Qineihuan point and conventional acupuncture therapy].

Science.gov (United States)

Li, Xiujuan; Li, Jie; Han, Haitao; Huang, Jinming; Li, Meikang; Lu Xuanlin; Song, Ning; Lin, Hua-sheng; Li, Xuemei; Huang, Guihua

2015-04-01

To compare the difference of the clinical efficacy in treatment of nervous tinnitus of kidney deficiency between the combined therapy of Zhuang medicine at Qineihuan point combined with the conventional acupuncture and simple conventional acupancture. Sixty patients were randomized into an observation group and a control group, 30 cases in each one. In the control group, the conventional acupuncture was applied to Taixi (KI 3), Zhaohai (KI 6), Tinggong (SI 19) and Waiguan (TE 5), etc. and the needles were retained for 30 min. In the observation group, on the basic treatment as the control group, Zhuang medicine acupuncture at Qineihuan point was added. The treatment was given once every day, 10 treatments made one session and there were 2 days of interval between the sessions. In 3 sessions of treatment, the changes of tinnitus were observed and the clinical efficacy was evaluated. After treatment, tinnitus score and tinnitus grade were all improved as compared with those before treatment in the two groups (all Pacupuncture achieves the better efficacy on nervous tinnitus of kidney deficiency as compared with the simple conventional acupuncture.

Tüli Leonardo pärast / Maria-Kristiina Soomre

Index Scriptorium Estoniae

Soomre, Maria-Kristiina, 1978-

2001-01-01

Firenze Uffizi galerii kavatsusest asuda restaureerima nende valduses olevat Leonardo "Kuningate kummardamist". Plaan on leidnud vastuseisu rahvusvahelisel kunstiareenil: 30 itaalia ja ameerika kunstiteadlast on ArtWatch Internationali egiidi all kirjutanud avaliku kirja muuseumi juhtkonnale.

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

Science.gov (United States)

Oztürk, Serefnur; Altieri, Marta; Troisi, Pina

2010-01-01

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. Copyright (c) 2010 S. Karger AG, Basel.

How to Think Like Leonardo da Vinci

Science.gov (United States)

Caouette, Ralph

2008-01-01

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

Flight Dynamics Analysis for Leonardo-BRDF

Science.gov (United States)

Hughes, Steven P.; Mailhe, Laurie; Bauer, Frank H. (Technical Monitor)

2000-01-01

Leonardo-BRDF (Bidirectional Reflectance Distribution Function) is a new NASA mission concept proposed to allow the investigation of radiative transfer and its effect on the Earth's climate and atmospheric phenomenon. Enabled by the recent developments in small-satellite and formation flying technology, the mission is envisioned to be composed of an array of spacecraft in carefully designed orbits. The different perspectives provided by a distributed array of spacecraft offer a unique advantage to study the Earth's albedo. This paper presents the flight dynamics analysis performed in the context of the Leonardo-BRDF science requirements. First, the albedo integral is investigated and the effect of viewing geometry on science return is studied. The method used in this paper, based on Gauss quadrature, provides the optimal formation geometry to ensure that the value of the integral is accurately approximated. An orbit design approach is presented to achieve specific relative orbit geometries while simultaneously satisfying orbit dynamics constraints to reduce formation-keeping fuel expenditure. The relative geometry afforded by the design is discussed in terms of mission requirements. An optimal Lambert initialization scheme is presented with the required Delta-V to distribute all spacecraft from a common parking orbit into their appropriate orbits in the formation. Finally, formation-keeping strategies are developed and the associated Delta-V's are calculated to maintain the formation in the presence of perturbations.

Genetic Variants at BCL11A and HBS1L-MYB loci Influence Hb F Levels in Chinese Zhuang β-Thalassemia Intermedia Patients.

Science.gov (United States)

Lai, Yunli; Chen, Yun; Chen, Biyan; Zheng, Haiyang; Yi, Sheng; Li, Guojian; Wei, Hongwei; He, Sheng; Zheng, Chenguang

2016-11-01

Increased Hb F levels can ameliorate the symptoms of β-thalassemia (β-thal). Due to the genetic heterogenicity of β-thal, the relationship between genetic variants in modifier genes and Hb F level has been studied in different populations. The Chinese Zhuang has the second largest population in China and has 6.78% prevalence of β-thal. However, the effects of these single nucleotide polymorphism (SNP) variants on the Hb F levels of β-thal intermedia (β-TI) patients in this population have not been reported. To explore the association between modifier loci (β-globin gene cluster, HBS1L-MYB intergenic region and BCL11A) and Hb F levels in Chinese Zhuang β-TI patients, 96 unrelated β-TI patients (50 males and 46 females) with different Hb F levels were recruited and genotyped by mass spectrometry. A total of 13 SNPs were confirmed to be in a significant relationship with Hb F levels in this population. Of these, high-risk genotypes of six Hb F-associated SNPs, rs9376090, rs7776054, rs9399137, rs9389268, rs9402685 in the HBS1L-MYB intergenic region and rs189984760 in the BCL11A locus, showed association with high Hb F levels, especially for SNPs in linkage disequilibrium. One novel Hb F-associated SNP, rs189984760, was identified in our study. Our findings will be of valuable reference for correlation between modifier genes and Hb F in Chinese Zhuang populations and may lead to better understand the modifying mechanisms for β-thal.

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

Science.gov (United States)

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

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

Historical continuity in the methodology of modern medical science: Leonardo leads the way.

Science.gov (United States)

Pasipoularides, Ares

2014-02-01

Early modern medical science did not arise ex nihilo, but was the culmination of a long history stretching back through the Renaissance, the Middle Ages, Byzantium and Roman times, into Greek Antiquity. The long interval between Aristotle and Galen and Harvey and Descartes was punctuated by outstanding visionaries, including Leonardo, the ultimate Renaissance man. His attitude and mindset were based on Aristotelian pursuit of empirical fact and rational thought. He declared himself to be a "man without letters" to underscore his disdain for those whose culture was only mnemonics and philosophical inferences from authoritative books. Leonardo read the Book of Nature with the immense curiosity of the pioneering scientist, ushering in the methodology of modern medical science with help from forerunners. He left no publications, but extensive personal Notebooks: on his scientific research, hydrodynamics, physiological anatomy, etc. Apparently, numerous successors availed themselves of his methodologies and insights, albeit without attribution. In his Notebooks, disordered and fragmentary, Leonardo manifests the exactitude of the engineer and scientist, the spontaneous freshness of one speaking of what he has at heart and that he knows well. His style is unrefined, but intensely personal, rich with emotion and, sometimes, poetic. Leonardo, the visionary anatomist, strived consistently not merely to imitate nature by depicting body structures, but to perceive through analysis and simulations the intimate physiologic processes; i.e., the biomechanics underlying the workings of all bodily organs and components, even the mysterious beating heart. It is fitting to regard him as the first modern medical scientist. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

Un nuevo Leonardo Da Vinci Dibujos para la ciencia

CERN Multimedia

2004-01-01

When the scientists of CERN, the European Laboratory for Particle Physics, have to illustrate one of their technical article, they don't need to look for a designer: they already have in their team Sergio Cittolin, a physicist who has the same talents as his fellow countryman, the famous Leonardo

The Hybridity of Scientific Knowledge : A Response to Leonardo Ambasciano

NARCIS (Netherlands)

von Stuckrad, Kocku

2016-01-01

This article responds to Leonardo Ambasciano's review of The Scientification of Religion: An Historical Study of Discursive Change, 1800–2000 by Kocku von Stuckrad. It criticizes a narrative that presents naturalism and science as the ultimate system of knowledge. Contesting this rhetoric, the

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

Science.gov (United States)

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

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

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

Science.gov (United States)

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

2014-06-01

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

"Leonardo da Vinci" projekt kutsehariduses / Piret Kärtner

Index Scriptorium Estoniae

Kärtner, Piret

2001-01-01

14.-25. mainì2001 viibisid seitse Eesti kutsekoolide inglise keele õpetajat ja kaks Riikliku Eksami- ja Kvalifikatsioonikeskuse esindajat Leonardo da Vinci projekti raames Rootsis Malmös, et tutvuda rootslaste ja hollandlaste koostöös välja töötatud programmi TENTEC - Teaching English for Technical Purposes rakendusvõimalustega, innovatiivsete võõrkeeleõppemeetoditega, eriala- ja keeleõppe integreeritud õpetusega, õppematerjalidega, mis põhinevad IT võimalustel

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

Science.gov (United States)

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

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

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

Science.gov (United States)

Missinne, Stefaan J

2014-06-01

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

Leonardo da Vinci's "A Skull Sectioned" : Skull and dental formula revisited

NARCIS (Netherlands)

Gerrits, Peter O.; Veening, Jan G.

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 (14521519), hides more detailed information than reported earlier. A well-chosen section cut explores sectioned

Kormašov puhus Leonardo autoportree intriigi lõkkele / Tiiu Leis

Index Scriptorium Estoniae

Leis, Tiiu

2010-01-01

Kadrioru Kunstimuuseumis eksponeeritakse Leonardo da Vinci arvatavat autoportreed. Lõuna-Itaalia erakogust leitud maali uurimisprotsessi kaasati Tallinna Ülikooli kunstiosakonna juhataja, maali ja maalitehnoloogia õppejõud Orest Kormašov, kes jagab selgitusi maali uuringute kohta. Ekspertiisis osales ka Eesti Kunstiakadeemia graafilise disaini tudeng Helen Kokk

Leonardo da Vinci's "A Skull Sectioned": Skull and dental formula revisited

NARCIS (Netherlands)

Gerrits, P.O.; Veening, J.G.

2013-01-01

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

Leonardo da Vinci and Kethem-Kiveris vena.

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Dolezal, Antonín; Skorepova-Honzlova, Zita; Jelen, Karel

2012-01-01

In the drawing of coitus by Leonardo da Vinci are pictured the contemporary hypotheses regarding this act. The authors analyze the mamillaruteral connection depicted by the artist and grow up to believe that this is a hypothetical kiveris vena, female vein described by Anatomist Master Nicolai Physicus from the Salerno School. The Hebrew roots were found in the name. The connection is described also by Mondino in The Anathomia. The same connection can be found in the picture of the pregnant woman in Fasciculus Medicinæ by Johannes De Ketham.

Luis de Morales y Leonardo. Nuevas fuentes iconográficas

Directory of Open Access Journals (Sweden)

Kaluguina, Elena O.

2004-12-01

Full Text Available El nombre del maestro de Vinci era sinónimo en España de «gran artista». La fama de este pintor, conocido en la Península Ibérica ya desde finales del siglo XV, alcanzó su apogeo en la primera mitad del siglo siguiente. Francisco de Holanda, primer historiador de la pintura española y portuguesa, en su tratado «Da Pintura Antigua» (1548, calificándoles de «águilas» del arte contemporáneo italiano, otorgaba el primer puesto a Miguel Ángel, tras el cual «seguía Leonardo da Vinci, descubridor y pionero con su valiente contraposición de luz y sombra». Es poco probable que en el siglo XVI hubiese en la península ibérica obras originales del gran artista italiano. Aunque en muchos inventarios de colecciones reales y privadas se enumeraban obras de Leonardo, es un hecho conocido que se trata de obras de sus discípulos o de copias de sus obras originales…

A NEW SPECIES OF THE GENUS CULICOIDES （JILINOCOIDES）（DIPTERA： CERATOPOGONIDAE） FROM THE GUANGXI ZHUANG AUTON. REG., CHINA

Institute of Scientific and Technical Information of China (English)

LIUGuo-ping; HAOBao-shan

2003-01-01

A new species of Culicoides ( Jilinocoides ), C. ( J. ) guangxiensis sp. nov. from Guangxi Zhuang Autonomous Region, China is described. The new species is closely allied to Culicoides qianweiensis Yu 1982,but is distinctly different in the presentation of the sensilla coeloconica, sensory pit of the palpus third segment,number of mandible teeth, pale spot on basal portion of wing and r-m pale spot on wing of female. The type spec-imen is deposited in the Institute of Military Medical Sciences, Shenyang Military District, Shenyang 110034,China.

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

Science.gov (United States)

Ganseman, Y; Broos, P

2008-01-01

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

Leonardo Pisano (Fibonacci) the book of squares

CERN Document Server

Sigler, L E

1987-01-01

The Book of Squares by Fibonacci is a gem in the mathematical literature and one of the most important mathematical treatises written in the Middle Ages. It is a collection of theorems on indeterminate analysis and equations of second degree which yield, among other results, a solution to a problem proposed by Master John of Palermo to Leonardo at the Court of Frederick II. The book was dedicated and presented to the Emperor at Pisa in 1225. Dating back to the 13th century the book exhibits the early and continued fascination of men with our number system and the relationship among numbers

One new species of Amphinemura and description of the female of A. ancistroidea Li & Yang (Plecoptera: Nemouridae) from Guangxi Zhuang Autonomous Region of southern China.

Science.gov (United States)

Mo, Raorao; Yang, Ding; Wang, Guoquan; Li, Weihai

2017-06-11

A new nemourid species, Amphinemura yao sp. nov. is described from the Daoyao Mountains of Guangxi Zhuang Autonomous Region of southern China. Amphinemura ancistroidea Li & Yang, 2007 is newly recorded from Guangxi and the female is described for the first time including the internal vaginal complex. The new species is compared with related taxa.

[Study on HIV-1 subtype among elderly male clients and female sex workers of low-cost venues in Guangxi Zhuang Autonomous Region, China].

Science.gov (United States)

Deng, Y Q; Li, J J; Fang, N Y; Wang, B; Wang, J W; Liang, S S; Shen, Z Y; Lan, G H; Zhang, H M; Wu, X H; Lu, H X; Ge, X M

2017-03-10

Objective: To understand HIV-1 subtype characteristics and transmission clusters in elderly male clients and female sex workers (FSWs) of low-cost commercial sex venues in Guangxi Zhuang Autonomous Region, China. Methods: A cross sectional survey was conducted in FSWs and elderly male clients (≥50 years) of low-cost commercial sex venues in 4 cities and 9 counties in Guangxi Zhuang Autonomous Region by convenient sampling in 2012. The blood sample was collected from each case for HIV-1 antibody detection. The pol gene fragments were amplified and sequenced from viral RNA template extracted from plasma samples. The phylogenetic tree was constructed and the subtypes were identified. Results: A total of 4 048 elderly male clients and 784 FSWs were surveyed, and 116 HIV-1 infections were detected, the positive rate was 2.5% (103/4 048) in the clients and 1.7% (13/784) in FSWs. The gene amplification and sequencing of HIV-1 detected in 84 blood samples indicated that 53 pol gene sequences were successfully determined (48 blood samples from elderly male clients and 5 blood samples from FSWs). Among 53 pol sequences, 48(90.6% ), 4(7.5% ), and 1(1.9% ) sequences were identified as CRF01_AE, CRF08_BC, and CRF07_BC, respectively. Two transmission clusters were identified among CRF01_AE, including 4 sub-clusters. One transmission cluster was identified among CRF08_BC. The transmission cluster or sub-cluster were from the infected individuals at same low-cost commercial sex venue, or different low-cost commercial sex venues in the same town, or same place, or adjacent villages and towns. Conclusions: CRF01_AE was the predominant HIV-1 subtype among elderly male clients and FSWs of low-cost commercial sex venues in Guangxi Zhuang Autonomous Region, circulating in same venue or adjacent villages and towns. The HIV-1 positive male clients and FSWs might play an important role in the spread of the strains.

Hard-Boiled for Hard Times in Leonardo Padura Fuentes's Detective Fiction

Science.gov (United States)

Song, H. Rosi

2009-01-01

Focusing on Leonardo Padura Fuentes's hard-boiled fiction, this essay traces the origin and evolution of the genre in Cuba. Padura Fuentes has challenged the officially sanctioned socialist "literatura policial" that became popular in the 1970s and 1980s. creating a new model of criticism that is not afraid to confront the island's socio-economic…

Eestisse jõuab arvatav Leonardo da Vinci autoportree / Maiki Voore

Index Scriptorium Estoniae

Voore, Maiki, 1983-

2010-01-01

5.-12. veebruarini eksponeeritakse Kadrioru kunstimuuseumis Leonardo da Vinci arvatavat autoportreed. 5. veebruaril on kunstimuuseumis maali pidulik esitlus, 6. veebruaril avatakse Tallinna ülikoolis maali analüüse tutvustav rahvusvaheline konverents "Da Vinci kood". Lõuna-Itaalia erakogust leitud maali analüüsimisega tegelesid Tallinna Ülikooli maali ja maalitehnoloogia õppejõud Orest Kormašov, kes valmistas klassikalise portreeskulptuuri, arvutisimulatsiooni teostas Eesti Kunstiakadeemia graafilise disaini tudeng Helen Kokk

'Beauty adorns virtue'. Dress in portraits of women by Leonardo da Vinci

NARCIS (Netherlands)

Dijk, Sara Jacomien van

2015-01-01

This thesis deals with dress in Leonardo’s portraits of women: his Ginevra de’ Benci, the Lady with an Ermine, La Belle Ferronnière, the portrait cartoon of Isabella d’Este and Mona Lisa. Leonardo portrayed his sitters in strikingly plain dress, without the sumptuous gold brocaded silk fabrics and

Leonardo da Vinci: engineer, bioengineer, anatomist, and artist.

Science.gov (United States)

West, John B

2017-03-01

Leonardo da Vinci (1452-1519) enjoys a reputation as one of the most talented people of all time in the history of science and the arts. However, little attention has been given to his contributions to physiology. One of his main interests was engineering, and he was fascinated by structural problems and the flow patterns of liquids. He also produced a large number of ingenious designs for warfare and a variety of highly original flying machines. But of particular interest to us are his contributions to bioengineering and how he used his knowledge of basic physical principles to throw light on physiological function. For example, he produced new insights into the mechanics of breathing including the action of the ribs and diaphragm. He was the first person to understand the different roles of the internal and external intercostal muscles. He had novel ideas about the airways including the mode of airflow in them. He also worked on the cardiovascular system and had a special interest in the pulmonary circulation. But, interestingly, he was not able to completely divorce his views from those of Galen, in that although he could not see pores in the interventricular septum of the heart, one of his drawings included them. Leonardo was a talented anatomist who made many striking drawings of the human body. Finally, his reputation for many people is based on his paintings including the Mona Lisa that apparently attracts more viewers than any other painting in the world. Copyright © 2017 the American Physiological Society.

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

Science.gov (United States)

Bjornavold, Jens; Pettersson, Sten

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

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

Science.gov (United States)

Soranzo, Alessandro; Newberry, Michelle

2015-08-01

A portrait of uncertain origin recently came to light which, after extensive research and examination, was shown to be that rarest of things: a newly discovered Leonardo da Vinci painting entitled La Bella Principessa. This research presents a new illusion which is similar to that identified in the Mona Lisa; La Bella Principessa's mouth appears to change slant depending on both the Viewing Distance and the Level of Blur applied to a digital version of the portrait. Through a series of psychophysics experiments, it was found that a perceived change in the slant of the La Bella Principessa's mouth influences her expression of contentment thus generating an illusion that we have coined the "uncatchable smile". The elusive quality of the Mona Lisa's smile has been previously reported (Science, 290 (2000) 1299) and so the existence of a similar illusion in a portrait painted prior to the Mona Lisa becomes more interesting. The question remains whether Leonardo da Vinci intended this illusion. In any case, it can be argued that the ambiguity created adds to the portrait's allure. Copyright © 2015 Elsevier Ltd. All rights reserved.

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

Science.gov (United States)

Le Floch-Prigent, P

2008-12-01

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

[Leonardo da Vinci the first human body imaging specialist. A brief communication on the thorax oseum images].

Science.gov (United States)

Cicero, Raúl; Criales, José Luis; Cardoso, Manuel

2009-01-01

The impressive development of computed tomography (CT) techniques such as the three dimensional helical CT produces a spatial image of the thoracic skull. At the beginning of the 16th century Leonardo da Vinci drew with great precision the thorax oseum. These drawings show an outstanding similarity with the images obtained by three dimensional helical CT. The cumbersome task of the Renaissance genius is a prime example of the careful study of human anatomy. Modern imaging techniques require perfect anatomic knowledge of the human body in order to generate exact interpretations of images. Leonardo's example is alive for anybody devoted to modern imaging studies.

[Risk Assessment of Heavy Metal Contamination in Farmland Soil in Du'an Autonomous County of Guangxi Zhuang Autonomous Region, China].

Science.gov (United States)

Wu, Yang; Yang, Jun; Zhou, Xiao-yong; Lei, Mei; Gao, Ding; Qiao, Peng-wei; Du, Guo-dong

2015-08-01

For a comprehensive understanding of the pollution characteristics and ecological risk of heavy metals of farmland soil in Du'an Autonomous County of Guangxi Zhuang Autonomous Region, China, this study evaluated the cadmium (Cd), arsenic (As), nickel (Ni), zinc (Zn), chromium (Cr), antimony (Sb), copper (Cu) and lead ( Pb) pollution situation using the single factor index, the Nemerow pollution index and the Hakanson ecological risk index. The results showed that heavy-metal pollution of farmland soil in Du'an County was serious. 74.6% of the soil samples had heavy metals concentrations higher than the Grade II of National Soil Environmental Quality Standard (GB 15618-1995). The over standard rates of Cd, As, Ni, Zn, Cr, Sb, Cu, Pb were 70.6%, 42.9%, 34.9%, 19.8%, 19.6%, 2.94%, 1.59%, 0.79%, respectively. Cd and As were the main contaminants in Du'an County, the pollution was far more serious than those of the national and Guangxi Zhuang Autonomous Region. In terms of the ecological risk, heavy metals of farmland soil in Du'an County showed a "middle" ecological risk, with Cd accounting for 88% of the total ecological risk. The north-west of Jiudu Town and the zone between Bao'an Town and Dongmiao Town were two areas with high ecological risk in Du'an County. The contamination of farmland soils in Du'an County was caused by two main sources, whereas the pollution of As and Sb of farmland soils near Diaojiang River was mainly caused by the upstream mining industry.

A Preliminary Formation Flying Orbit Dynamics Analysis for Leonardo-BRDF

Science.gov (United States)

Hughes, Steven P.; Mailhe, Laurie M.

2001-01-01

Leonardo-BRDF is a NASA mission concept proposed to allow the investigation of radiative transfer and its effect on the Earth's climate and atmospheric phenomenon. Enabled by the recent developments in small-satellite and formation flying technology, the mission is envisioned to be composed of an array of spacecraft in carefully designed orbits. The different perspectives provided by a distributed array of spacecraft offer a unique advantage to study the Earth's albedo. This paper presents the orbit dynamics analysis performed in the context of the Leonardo-BRDF science requirements. First, the albedo integral is investigated and the effect of viewing geometry on science return is studied. The method used in this paper, based on Gauss quadrature, provides the optimal formation geometry to ensure that the value of the integral is accurately approximated. An orbit design approach is presented to achieve specific relative orbit geometries while simultaneously satisfying orbit dynamics constraints to reduce formation-keeping fuel expenditure. The relative geometry afforded by the design is discussed in terms of mission requirements. An optimal two-burn initialization scheme is presented with the required delta-V to distribute all spacecraft from a common parking orbit into their appropriate orbits in the formation. Finally, formation-keeping strategies are developed and the associated delta-V's are calculated to maintain the formation in the presence of perturbations.

The first marriage of despot Leonardo III Tocco

Directory of Open Access Journals (Sweden)

Zečević Nada

2006-01-01

Full Text Available The marriage between Leonardo III — the last member of the Tocco family who ruled the Heptanese (1448-1479 — and Milica Branković, the daughter of the Serbian Despot Lazar Branković and Helen Palaiologos, concluded in Dubrovnik on May 1 1463, is an intriguing issue: it was concluded under unusual circumstances, and its significance was variously presented by the couple's earlier and later contemporaries. An analysis of several historical sources (mainly those of documentary character, also some of a narrative nature shows that, despite the belittlement of its significance made by some of the pair's contemporaries, the marriage was generally seen as a prospective alliance, designed not only to satisfy the existential needs of the couple but also to enhance the interests of various important political factors of the time: Thomas Palaiologos, the authorities of Dubrovnik, the Roman Curia and Cardinal Bessarion. As widely known, the political prospectives opened by this marriage were not fully accomplished due to the short duration of this relationship (Milica died soon after the wedding. Yet this conjugal alliance proved useful for the Tocco party even after its conclusion. In the time following Leonardo's flight from the Ottomans to Naples (after 1479, he referred to the lineage with Milica as an alliance with the Byzantine imperial family, supposedly in order to achieve certain benefices from the Italian environment where he repatriated. In parallel to the analysis of the sources about the motives and significance of the first marriage of the last Tocco despot, in this paper I also deal with several pro-sopographic and topographic details of regional importance, mentioned on the occasion of the Tocco-Brankovic wedding ceremony (e.g. Bishop of Bologna Blasius Constantii Paliki, etc. .

Leonardo da Vinci jõudis Tallinna / Orest Kormašov, Helen Kokk ; intervjueerinud Ants Juske

Index Scriptorium Estoniae

Kormašov, Orest, 1964-

2010-01-01

Kadrioru Kunstimuuseumis eksponeeritakse 5.-12. veebruarini 2010. a. Leonardo da Vinci arvatavat autoportreed. Itaalia kunstiajaloolased kaasasid autoportree uurimisse Tallinna Ülikooli maaliosakonna juhataja Orest Kormašovi, kes teostas klassikalise portreeskulptuuri, ja Eesti Kunstiakadeemia graafilise disaini tudengi Helen Koka, kes valmistas arvutiimitatsiooni

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

Science.gov (United States)

Le Magazine, 1996

1996-01-01

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

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

Science.gov (United States)

McManus, I. C.; Drury, Helena

2004-01-01

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

Arts and science under the sign of Leonardo. The case of the National Museum of Science and Technology ‘Leonardo da Vinci’ of Milan

Directory of Open Access Journals (Sweden)

Claudio Giorgione

2009-06-01

Full Text Available Drawing on the example of Leonardo da Vinci, who was able to combine arts and science in his work, the National Museum of Science and Technology of Milan has always pursued the blending and the dialogue of humanistic and scientific knowledge. It has employed this approach in all of its activities, from the set design of exhibition departments to the acquisition of collections and, more recently, in the dialogue with the public. Now more than ever, following a renewal path for the Museum, these guidelines are being subject to research to achieve a new and more up-to-date interpretation.

The LEONARDO-DA-VINCI pilot project "e-learning-assistant" - Situation-based learning in nursing education.

Science.gov (United States)

Pfefferle, Petra Ina; Van den Stock, Etienne; Nauerth, Annette

2010-07-01

E-learning will play an important role in the training portfolio of students in higher and vocational education. Within the LEONARDO-DA-VINCI action programme transnational pilot projects were funded by the European Union, which aimed to improve the usage and quality of e-learning tools in education and professional training. The overall aim of the LEONARDO-DA-VINCI pilot project "e-learning-assistant" was to create new didactical and technical e-learning tools for Europe-wide use in nursing education. Based on a new situation-oriented learning approach, nursing teachers enrolled in the project were instructed to adapt, develop and implement e- and blended learning units. According to the training contents nursing modules were developed by teachers from partner institutions, implemented in the project centers and evaluated by students. The user-package "e-learning-assistant" as a product of the project includes two teacher training units, the authoring tool "synapse" to create situation-based e-learning units, a student's learning platform containing blended learning modules in nursing and an open sourced web-based communication centre. Copyright 2009 Elsevier Ltd. All rights reserved.

Leonardo da Vinci (1452-1519) and his depictions of the human spine.

Science.gov (United States)

Bowen, Garvin; Gonzales, Jocelyn; Iwanaga, Joe; Fisahn, Christian; Loukas, Marios; Oskouian, Rod J; Tubbs, R Shane

2017-12-01

Few individuals in history have exerted so great an influence and made such extensive contributions to so many disciplines as Leonardo da Vinci. Da Vinci's inquisitive, experimental mentality led him to many discoveries, such as spinal cord function and the proper anatomy of several organ systems. Respected not only as an artist but also as an anatomist, he made many significant contributions to the field. This article explores da Vinci's drawings, in relation to the anatomy of the human spine.

Arts and science under the sign of Leonardo. The case of the National Museum of Science and Technology ‘Leonardo da Vinci’ of Milan (Italian original version

Directory of Open Access Journals (Sweden)

Claudio Giorgione

2009-06-01

Full Text Available Drawing on the example of Leonardo da Vinci, who was able to combine arts and science in his work, the National Museum of Science and Technology of Milan has always pursued the blending and the dialogue of humanistic and scientific knowledge. It has employed this approach in all of its activities, from the set design of exhibition departments to the acquisition of collections and, more recently, in the dialogue with the public. Now more than ever, following a renewal path for the Museum, these guidelines are being subject to research to achieve a new and more up-to-date interpretation.

Multi-year consumption analysis and innovative energy perspectives: The case study of Leonardo da Vinci International Airport of Rome

International Nuclear Information System (INIS)

Rubeis, Tullio de; Nardi, Iole; Paoletti, Domenica; Di Leonardo, Antonella; Ambrosini, Dario; Poli, Ruggero; Sfarra, Stefano

2016-01-01

Highlights: • A systematic approach for energy management of complex structures is proposed. • Technological systems of Leonardo da Vinci Airport of Rome are described. • A multi-year consumption analysis highlights the most energy-consuming sectors. • The “Smart Grid” prototype project inherent to T1 Terminal is presented. • Wind and photovoltaic plants are designed and discussed to test the smart storage. - Abstract: Because of the growing need for efficient energy production systems, energy policies promoted in recent years have also involved complex structures, like airports. This paper proposes the implementation of an energy management system for a very energy-consuming structure, composed of different power plants and many energy consumers: the Leonardo da Vinci International Airport of Rome. In this study, the examination of historical data related to airport electric power, thermal energy and fuel consumption is discussed, starting with the analysis of the production energy plants, mainly based on a combined heat and power system. Furthermore, pioneering solutions are proposed, not only to cover airport energy requirements, but also to test the safety and reliability of innovative load management systems. For this reason, the choice of the Leonardo da Vinci management company, oriented to install a smart storage in order to manage the bidirectional energy flows by consumers and producers, is justified. Such innovative energy procurement systems are examined, with the goal of achieving greater penetration of renewable sources: mini and micro wind power plants and high concentrator photovoltaic plants.

"Humankind before the flood" : En kvalitativ studie om användningen av retorik i en dokumentärfilm av och med Leonardo DiCaprio

OpenAIRE

Björnberg, Nana; Hansen, Jonna

2018-01-01

Följande studie undersökte Before the Flood, en dokumentärfilm av och med Leonardo DiCaprio, utifrån ett retoriskt perspektiv. Studiens syfte var att undersöka om och i så fall på vilket sätt Leonardo DiCaprio, experter och skaparna bakom dokumentärfilmen använde retoriska strategier för att förstärka Before the Flood’s budskap och verka övertygande inför sin publik. Som metod tillämpade studien kvalitativ textanalys och de tre grundläggande appellformerna, visuell retorik samt argumentation ...

OCT structural examination of Madonna dei Fusi by Leonardo da Vinci

Science.gov (United States)

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

2013-05-01

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

The mother relationship and artistic inhibition in the lives of Leonardo da Vinci and Erik H. Erikson.

Science.gov (United States)

Capps, Donald

2008-12-01

In four earlier articles, I focused on the theme of the relationship of melancholia and the mother, and suggested that the melancholic self may experience humor (Capps, 2007a), play (Capps, 2007b), dreams (Capps, 2008a), and art (Capps, 2008b) as restorative resources. I argued that Erik H. Erikson found these resources to be valuable remedies for his own melancholic condition, which had its origins in the fact that he was illegitimate and was raised solely by his mother until he was three years old, when she remarried. In this article, I focus on two themes in Freud's Leonardo da Vinci and a memory of his childhood (1964): Leonardo's relationship with his mother in early childhood and his inhibitions as an artist. I relate these two themes to Erikson's own early childhood and his failure to achieve his goal as an aspiring artist in his early twenties. The article concludes with a discussion of Erikson's frustrated aspirations to become an artist and his emphasis, in his psychoanalytic work, on children's play.

Una aproximación analítica a las mallas recíprocas diseñadas por Leonardo

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Sánchez, J.

2010-06-01

Full Text Available It is a topic to refer Leonardo when we introduce any branch of the art, science o technique because his manuscripts ever contain news that before him never where explored, nor profited even later. This can be understood because these manuscripts never where published till five centuries later. Observations referred to design of structures are the less known and otherwise the less studied. Really the most important problems about this subject are contained in the Codex I of Madrid, some in the Codex Atlantic, and less in the Codex II of Madrid. Other books do not refer these questions. Leonardo, in his drawings, manifested an obsessive search for solutions to the problem of how to span great distances with short pieces. In his notebooks, we find reiterative diagrams which seem to be searching for variants of frames capable of constituting structures, mainly roofs, floors and bridges, which could cover large distances by using manageable pieces that could easily be supplied. In this paper we analyze with actual computer programs how his proposals could be achieved and we establish some conclusions about it.

Ya resulta tópico referirse a Leonardo cada vez que tocamos algún tema de arte, ciencia o técnica puesto que en sus escritos siempre podemos encontrar aspectos que nadie estudió antes ni, en muchos casos, nadie explotó después. Esto se explica porque sus manuscritos no fueron publicados hasta cinco siglos después. Sus observaciones respecto al diseño de estructuras son menos conocidas y son también las menos estudiadas. Realmente sus principales aportaciones se contienen en el Códice I de Madrid, y menos en el Códice II de Madrid, algunas otras, más generales, en el Códice Atlántico. Sus otros cuadernos de notas no tratan de estas cuestiones. En sus dibujos, Leonardo manifestó una obsesiva búsqueda de soluciones para cubrir grandes luces con piezas cortas. En sus Cuadernos encontramos diagramas de muchas variantes para

Leonardo da Vinci's studies of the heart.

Science.gov (United States)

Shoja, Mohammadali M; Agutter, Paul S; Loukas, Marios; Benninger, Brion; Shokouhi, Ghaffar; Namdar, Husain; Ghabili, Kamyar; Khalili, Majid; Tubbs, R Shane

2013-08-20

Leonardo da Vinci's detailed drawings are justly celebrated; however, less well known are his accounts of the structures and functions of the organs. In this paper, we focus on his illustrations of the heart, his conjectures about heart and blood vessel function, his experiments on model systems to test those conjectures, and his unprecedented conclusions about the way in which the cardiovascular system operates. In particular, da Vinci seems to have been the first to recognize that the heart is a muscle and that systole is the active phase of the pump. He also seems to have understood the functions of the auricles and pulmonary veins, identified the relationship between the cardiac cycle and the pulse, and explained the hemodynamic mechanism of valve opening and closure. He also described anatomical variations and changes in structure and function that occurred with age. We outline da Vinci's varied career and suggest ways in which his personality, experience, skills and intellectual heritage contributed to these advances in understanding. We also consider his influence on later studies in anatomy and physiology. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

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

Science.gov (United States)

Frattari, Antonio; Dalpra, Michela; Bernardi, Fabio

2013-01-01

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

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

Science.gov (United States)

Valjus, Sonja

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

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

Science.gov (United States)

Ahner, E

2008-04-02

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.

The Comparison of the Baroque and Renaissance Aesthetics Paintings of “The Last Supper” by Caravaggio and Leonardo da Vinci

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I Wayan Kun Adnyana

2017-12-01

Full Text Available The paintings of Caravaggio’s and Leonardo da Vinci’s The Last Supper are two iconic artworks from two maestros in a different era. Caravaggio is one of the fame Baroque’s artists and da Vinci is the most famous Renaissance man, who created the same theme of a painting, The Last Supper. The theme represents the story of Christ’s supper. Through an inductive view, this comparative study analyzes the aesthetic structures of both paintings, by using Feldman’s perspective in Art as Image and Idea (1967. The analysis includes visual structures, including line, form, darkness-lightness; elements of the organization, including unity, balance, rhythm, and proportion; and elements of perception and aesthetic, inclu- ding empathy and a psychic distance. The result of this research discovers two different perspectives of aesthetic characteristics of Baroque and Renaissance paintings.   Keywords: baroque, Caravaggio, Leonardo da Vinci, renaissance, the last supper

Use of Simulation in Nursing Education: Initial Experiences on a European Union Lifelong Learning Programme--Leonardo Da Vinci Project

Science.gov (United States)

Terzioglu, Fusun; Tuna, Zahide; Duygulu, Sergul; Boztepe, Handan; Kapucu, Sevgisun; Ozdemir, Leyla; Akdemir, Nuran; Kocoglu, Deniz; Alinier, Guillaume; Festini, Filippo

2013-01-01

Aim: The aim of this paper is to share the initial experiences on a European Union (EU) Lifelong Learning Programme Leonardo Da Vinci Transfer of Innovation Project related to the use of simulation-based learning with nursing students from Turkey. The project started at the end of the 2010 involving 7 partners from 3 different countries including…

A psychoanalytic understanding of the desire for knowledge as reflected in Freud's Leonardo da Vinci and a memory of his childhood.

Science.gov (United States)

Blass, Rachel B

2006-10-01

The author offers an understanding of the psychoanalytic notion of the desire for knowledge and the possibility of attaining it as it fi nds expression in Freud's Leonardo da Vinci and a memory of his childhood. This understanding has not been explicitly articulated by Freud but may be considered integral to psychoanalysis' Weltanschauung as shaped by Freud's legacy. It emerges through an attempt to explain basic shifts, contradictions, inconsistencies and tensions that become apparent from a close reading of the text of Leonardo. Articulating this implicit understanding of knowledge provides the grounds for a stance on epistemology that is integral to psychoanalysis and relevant to contemporary psychoanalytic concerns on this topic. This epistemology focuses on the necessary involvement of passion, rather than detachment, in the search for knowledge and views the psychoanalytic aim of self-knowledge as a derivative, and most immediate expression, of a broader and more basic human drive to know.

Sine ars scientia nihil est: Leonardo da Vinci and beyond.

Science.gov (United States)

Kickhöfel, Eduardo H P

2009-01-01

The aim of this article is to reflect on the relationship between art and science so far as it concerns a symposium on neurosciences. We undertake a historical overview of that relationship, paying particular attention to the sui generis case of Leonardo da Vinci, who very often is regarded as the man who worked on art and science with equal ease. We then explain why his idea of merging these two forms of knowledge failed, considering the clear-cut distinction between art and science in his time. With this clarification, we explore the matter today. We look at Raphael's The Transfiguration, in which the representation of the possessed boy is seen by neuroscientists as indicative of an epileptic seizure. We also look at the ideas of neuroscientists Semir Zeki and Vilayanur Ramachandran, who study particular aspects of brain function and suggest a new merging of art and science.

[Project Leonardo-da-Vinci for better nursing care].

Science.gov (United States)

Gábor, Katalin; Csanádi, Lajosné; Helembai, Kornélia; Szögi, Zoltánné; Tulkán, Ibolya; Unginé, Kántor Katalin

2002-08-18

The aim of the present paper is to inform physicians about the work completed by nurses and professors of baccalaureat nurses in the framework of Leonardo da Vinci project, organised and sponsored by the European Union. The goal of the project was to increase the effectiveness of chief nurses throughout their further training programme in the field of management. The team of Szeged chose the human resource management, since in this field is possible to achieve the greatest improvement with the smallest financial investment. We measured the fluctuations and the absentees of the nurses, the changes in the degree of education, the nurse' and patient' satisfaction at the beginning and at the end of the period studied. Except the patient's satisfaction all the other parameters improved by the end of tested period. The project provided a unique possibility to compare the state of the Hungarian nursing with that of the countries belonging to the European Union, to exchange the experience and to learn some new methods. In the framework of this project a book of two volumes was prepared containing the suggestions of EU. This book is widely available in English and in French.

The Participation Role of Villagers in Village Plan Implementation: A Comparative Study on Two Villages in Guangxi Zhuang Autonomous Region, China

Institute of Scientific and Technical Information of China (English)

Chengzhi; YIN; Haitao; CHEN

2013-01-01

China is in a process of rapid urbanization. Meanwhile, building development in rural areas is also accelerating. The paper intends to illustrate an original study focusing on villagers’ role in participation in village plan implementation in rural areas of China. Case studies, comparative studies, interviews, and questionnaires have been applied to reveal the mechanism of villager participation in village plan imple-mentation. Two case villages, which are pioneer units in the transition in Guangxi Zhuang Autonomous Region, have been selected. The study outcome shows that the villager participation plays an extremely important role in implementing the official village plan. The ideal development regulation mode in village planning in rural China should be a local government-villager cooperating system formed by three pillars: financial and technical supports from local governments; the participation of rural autonomous organizations, non-governmental organizations, and 'able persons' in formulation, implementation, and monitoring of official village plans; village construction teams like developers.

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

Science.gov (United States)

Baum, Neil

2013-01-01

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

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

Science.gov (United States)

Tarsitani, Gianfranco; Moroni, Catia; Cappitelli, Francesca; Pasquariello, Giovanna; Maggi, Oriana

2014-01-01

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

Cognitive function of 320 people over 65 years from longevous areas in Guangxi Zhuang Autonomous Region:Feasibility of the mini-mental state examination

Institute of Scientific and Technical Information of China (English)

Yeguang Wu; Bin Wei; Xiaoming Zhang; Guobing Zhang; Chunlin Zhang; Zhibin Li; Chenghan Wei; Jinchao Chen; Donglan Huang; Rong Zhao; Jinrui Huang

2006-01-01

BACKGROUND: Mini-mental state examination (MMSE) of Chinese version has been widely used to survey cognitive function of elder people; especially, it shows a good reliability and validity for elder people in city.However, whether it is beneficial to measure cognitive function of elder people in countries in Guangxi Zhuang Autonomous Region should be further studied.OBJECTIVE: To investigate the feasibility, reliability and validity of the cognitive function among the elderly people aged over 65 years from Jiazhuan in Bama County of Guangxi Zhuang Autonomous Region by using the MMSE of Chinese version.DESIGN: Prevalence survey.SETTING: Department of Psychology, Nanjing Municipal Social Welfare Hospital; Department of Psychology,Yizhou Municipal Jiulong Railroad Hospital; Long Life's Institute of Bama County.PARTICIPANTS: A total of 320 old persons over 65 years old were sampled on the basis of the unit of village of Jiazhuan in Bama County of Guangxi Zhuang Autonomous Region from the 12th to 28th, March 2004. All the subjects provided the confirmed consents.METHODS: ① Mental Health Questionnaire of long life's old man was adopted including demographic data and international standardized MMSE in Chinese. The survey of MMSE was divided into two phases: In the first phase, every case was examined by MMSE. The positive result was decided by the education level. Illiterate group, who was educated less than one year, then his MMSE scores must be less than 17; primary school group, who was educated from 1 to 6 years, then his MMSE must be less than 20; middle school group, who was educated more than 7 years, then his MMSE must be less than 24. In the second phase, these cases with positive MMSE score were given the neuro-psycho and mental health examination to confirm the dementia types after diagnosis. The content of the questionnaire was revised properly without changing the meaning of the questionnaire. The interclass correlation coefficient of MMSE was 0.89. �

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

NARCIS (Netherlands)

Kwakkelstein, M.W.|info:eu-repo/dai/nl/74032615

2011-01-01

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

[The art of Leonardo Da Vinci as a resource to science and the ideal of nursing care].

Science.gov (United States)

Nascimento, Maria Aparecida de Luca; de Brito, Isabela Jorge; Dehoul, Marcelo da Silva

2003-01-01

Theoretical reflection whose goal is to demonstrate the art a nursing team is required to show in order to perform a technical procedure for transfer of solutions from a normal vial to a microdrops vial, based on Leonardo Da Vinci's theoretical referential, inspired by his work called "Vitruvian Man", so that body harmony is kept. The authors emphasize its relationship to nursing care, viewing it from its broadest sense, and its own motto--"Science, Art and Ideal".

De memorias y contramemorias invitación a la lectura del escritor Leonardo Padura

Directory of Open Access Journals (Sweden)

Renán Silva

2016-01-01

Full Text Available A propósito de la obra del escritor cubano Leonardo Padura se examina la literatura como crítica de la sociedad; la libertad del escritor; la existencia, en toda sociedad, de memorias y contra/memorias; el testimonio que sobre la sociedad cubana de hoy ofrece su más importante escritor en la actualidad; la recreación de una historia oficial que ya resulta chocante, por decir lo mínimo, por su relación con una realidad cada vez más conocida y puesta de presente por escritores y artistas que no son en absoluto “enemigos de la revolución”.

Leonardo da Vinci maali näidatakse peagi Kadriorus / Gianni Glinni, Orest Kormašov ; intervjueerinud Mart Zirnask

Index Scriptorium Estoniae

Glinni, Gianni

2009-01-01

Kadrioru Kunstimuuseumis eksponeeritakse 5.-12. veebruarini 2010. a. Leonardo da Vinci arvatavat autoportreed ning 6. veebruaril toimub Tallinna Ülikoolis maali analüüse tutvustav konverents. Portree leiti 2008. aastal ühest Lõuna-Itaalia erakogust. TLÜ kunstiosakonna juhataja Orest Kormašov valmistas maali järgi skulptuuri ja EKA tudeng ja graafiline disainer Helen Kokk arvutimudeli. Intervjuus jagavad teemakohaseid selgitusi üks uuringute eestvedaja Gianni Glinni ja Orest Kormašov

The Psychological Roots of Creativity in Messages Left by Leonardo da Vinci, Giorgio Vasari, and a Neanderthal Troglodyte

OpenAIRE

Antonio Cassella

2016-01-01

The perfect memory that informs our local autistic facet is insufficient to deal with the unforeseen change that challenges our nonlocal artistic facet. The loss of quantum nonlocality leads autistics to fail tests rooted in overcoming the less-than-perfect ambiguity that elicits our creativity. The psychological structure by which perfect memory and less-than-perfect creativity empower each other remains in darkness. This article broaches the hypothesis that Leonardo da Vinci envisioned the ...

Leonardo da Vinci meets celiac disease.

Science.gov (United States)

Zanchi, Chiara; Ventura, Giovanna; Di Leo, Grazia; Orzes, Nicoletta; Ronfani, Luca; Not, Tarcisio; Ventura, Alessandro

2013-02-01

Leonardo da Vinci's face symmetry derives from 3 equal craniofacial segments: trichion-nasion (tn), which represents the superior third of the face, nasion-subnasal (ns) that is the medium third of the face, and subnasal-gnathion (sg) that is the length of the lower third of the face. It has been reported that adult subjects with celiac disease (CD) can be identified on the basis of a greater extension of the forehead in comparison to the medium third of the face, with a high tn/ns ratio. The aim of the present study was to investigate the correlation between facial asymmetry and CD in childhood and adulthood. We studied 126 biopsy-proven patients with CD (76 children and 50 adults) and 102 healthy controls (43 children and 59 adults). Their faces were photographed; the pictures were edited using a software program to calculate the facial segments. The tn length was significantly different between adult celiac and adult controls (7.43 ± 1.46 cm vs 6.38 ± 1.73 cm, P = 0.001). The cutoff of 6.5 cm tn, derived from receiver operating characteristic curve analysis, identified 43 of 50 patients (sensitivity 86%), but 34 of 59 controls were positive (specificity 54.2%). The positive predictive value was 56%; however, the tn/ns ratio was not significantly different between celiacs and controls. Neither the tn length nor the tn/ns ratio in celiacs correlated to the time of gluten exposure. Adults, but not children, with celiac disease show a forehead extension significantly greater than controls, but this test's specificity appears too low to be used in the screening of CD.

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

Directory of Open Access Journals (Sweden)

Gianfranco Tarsitani

2014-01-01

Full Text Available 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.

CONTRAINTERPRETAR O SOCIALISMO E RESSIGNIFICAR A MODERNIDADE: CONTRIBUIÇÕES DE LEONARDO PADURA

Directory of Open Access Journals (Sweden)

Bruna Tella Guerra

2015-10-01

Full Text Available No texto a seguir, parto da observação do cenário brasileiro contemporâneo para evidenciar o enfastiado conhecimento político e social que tem a população, o qual proporciona mal-entendidos em relação à esquerda e ao socialismo. Mostra-se urgente, então, uma contrainterpretação do socialismo e, consequentemente, um novo entendimento da modernidade. Um dos caminhos para isso são as manifestações artísticas, incluindo a literatura. Por isso, num segundo momento do texto, analiso de que maneira o autor cubano Leonardo Padura, mais especificamente em El hombre que amaba a los perros, contribui com a contrainterpretação do socialismo e com a ressignificação da modernidade.

Bell's palsy: the answer to the riddle of Leonardo da Vinci's 'Mona Lisa'.

Science.gov (United States)

Maloney, W J

2011-05-01

The smile of the famed portrait 'The Mona Lisa' has perplexed both art historians and researchers for the past 500 years. There has been a multitude of theories expounded to explain the nature of the model's enigmatic smile. The origin of the model's wry smile can be demonstrated through a careful analysis of both documented facts concerning the portrait--some gathered only recently through the use of modern technology--and a knowledge of the clinical presentation of Bell's palsy. Bell's palsy is more prevalent in women who are either pregnant or who have recently given birth. This paper postulates that the smile of the portrait's model was due to Leonardo da Vinci's anatomically precise representation of a new mother affected by Bell's palsy subsequent to her recent pregnancy.

A arte de Leonardo da Vinci subsidiando a ciência e o ideal do cuidado de enfermagem

OpenAIRE

Nascimento, Maria Aparecida de Luca; Brito, Isabela Jorge de; Dehoul, Marcelo da Silva

2003-01-01

Reflexão teórico-filosófica que tem por objetivo demonstrar a arte que precisa ser contemplada durante a execução do procedimento técnico da transferência de soluções para o frasco do microgotas realizada pela equipe de enfermagem, à luz do referencial de Leonardo da Vinci, inspirado em sua obra "O homem vitruviano", para que a harmonia corporal seja mantida, Os autores enfatizaram a relação existente entre a assistência de enfermagem, entendendo-a no seu mais amplo sentido, e o seu próprio l...

The Science Museum and the Leonardo da Vinci Quincentenary Exhibition of 1952

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Professor Jim Bennett

2015-11-01

Full Text Available A large and successful exhibition to mark the 500th anniversary of the birth of Leonardo da Vinci was held at the Royal Academy, Burlington House, London, in 1952. It was an important event for the public appreciation of Leonardo’s genius. The proposal for the exhibition had come from the Science Museum, whose staff arranged a ‘scientific section’ of the exhibition, providing and displaying photographs and models. The story of these early models is particularly interesting in the light of the subsequent expansion in the use of mechanical models and animations to interpret and present Leonardo’s work. Questions that surrounded their introduction are accentuated by the ubiquity of models today. Some of the 1952 models will be displayed at the Science Museum in 2016, alongside an exhibition of a large group of ‘historical models’ first displayed in Milan in 1953. The occasion should provoke some thoughtful consideration of the current influence of this tool for research and display.

El nuevo gobierno de Sancho by Leonardo Castellani, in the light of Cervantine model

Directory of Open Access Journals (Sweden)

María Mercedes Rodríguez Temperley

2017-11-01

Full Text Available Almost since its publication, Don Quixote had an attractive magnetism in writers from different languages and different times, who imitated, continued and rewroted the Cervantes’s best literary work. Argentine is possibly the american country that most has contributed to increased this literary heritage. Contemporary to the famous «Pierre Menard, autor del Quijote» published by Jorge Luis Borges in 1939 and 1941 (perhaps the paradigmatic rewriting of a Cervantine text in the argentine literature will rise an original and unclasificable text: a political satire of the argentine reality of the River Plate, looking for an argentine identity. This work is El nuevo gobierno de Sancho, published by the Jesuit Leonardo Castellani in 1942. The purpose of this article is to do a comparative study with Don Quixote.

Columbian Secrets: Cristóbal Colón by Leonardo Balada and Antonio Gala

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José Elías Gutiérrez Meza

2016-11-01

Full Text Available The play Cristóbal Colón premiered in 1989 at the Teatro del Liceu. Composed by the musician Leonardo Balada and the playwright Antonio Gala, this opera was commissioned by the Sociedad Estatal Quinto Centenario as part of the festivities organized by the Spanish government to commemorate the Discovery of America. Unlike the so-called "des-celebración del 92", Cristóbal Colón champions the figure of the discoverer and emphasizes the participation of Spain through the praised role of Martín Alonso Pinzón. However, the opera was cut at the last minute. This article asserts that such alteration may have been the result of political censorship attempting to counteract the criticism of the Discovery of America contained in the original version.

Feasibility and effectiveness of a disease and care management model in the primary health care system for patients with heart failure and diabetes (Project Leonardo).

Science.gov (United States)

Ciccone, Marco Matteo; Aquilino, Ambrogio; Cortese, Francesca; Scicchitano, Pietro; Sassara, Marco; Mola, Ernesto; Rollo, Rodolfo; Caldarola, Pasquale; Giorgino, Francesco; Pomo, Vincenzo; Bux, Francesco

2010-05-06

Project Leonardo represented a feasibility study to evaluate the impact of a disease and care management (D&CM) model and of the introduction of "care manager" nurses, trained in this specialized role, into the primary health care system. Thirty care managers were placed into the offices of 83 general practitioners and family physicians in the Apulia Region of Italy with the purpose of creating a strong cooperative and collaborative "team" consisting of physicians, care managers, specialists, and patients. The central aim of the health team collaboration was to empower 1,160 patients living with cardiovascular disease (CVD), diabetes, heart failure, and/or at risk of cardiovascular disease (CVD risk) to take a more active role in their health. With the support of dedicated software for data collection and care management decision making, Project Leonardo implemented guidelines and recommendations for each condition aimed to improve patient health outcomes and promote appropriate resource utilization. Results show that Leonardo was feasible and highly effective in increasing patient health knowledge, self-management skills, and readiness to make changes in health behaviors. Patient skill-building and ongoing monitoring by the health care team of diagnostic tests and services as well as treatment paths helped promote confidence and enhance safety of chronic patient management at home. Physicians, care managers, and patients showed unanimous agreement regarding the positive impact on patient health and self-management, and attributed the outcomes to the strong "partnership" between the care manager and the patient and the collaboration between the physician and the care manager. Future studies should consider the possibility of incorporating a patient empowerment model which considers the patient as the most important member of the health team and care managers as key health care collaborators able to enhance and support services to patients provided by physicians in

Entrevista a Leonardo Filippini: “Sáquenme de Estocolmo si me enamoro de mi secuestrador”

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Silvana Lauzán

2011-11-01

Full Text Available Leonardo Filippini es abogado de la Universidad de Buenos Aires. Es máster en Derecho de la Universidad de Palermo y de la Universidad de Yale. Actualmente es Profesor de grado y posgrado en la Facultad de Derecho de la Universidad de Palermo, Investigador del Centro Internacional para la Justicia Transicional (ICTJ y candidato a doctor por la Escuela de Derecho de Yale. En esta entrevista, se discute sobre la Ley Nº 26.549 que modificó el Código Procesal Penal en Argentina, y que autoriza a la realización de pruebas compulsivas de ADN, en el contexto de los juicios que buscan restablecer la identidad de los niños y niñas apropiados o sustraídos ilegalmente durante la dictadur, y cuya identidad aún no se ha logrado establecer.

A checklist of the millipedes (Diplopoda) of Myanmar, with an updated list of Leonardo Fea's collecting localities.

Science.gov (United States)

Likhitrakarn, Natdanai; Jirapatrasilp, Parin; Golovatch, Sergei I; Panha, Somsak

2017-11-16

At present, the millipede fauna of Myanmar comprises 92 species from 34 genera, 13 families and 8 orders, mostly described in 1889-1896. All literature records are cited with updates on species identities, as well as numerous taxonomic problems which make the number of species and even genera still imprecise. The Myanmar millipede fauna contains 70 endemic and five widespread synanthropic species. One species is found to have erroneously been recorded from Myanmar, and is ejected from the list of Myanmar millipedes also because of its uncertain taxonomic status. A complete bibliography on the millipedes of Myanmar, an updated list of the collecting localities and a map of the journeys of Leonardo Fea, the principal collector of Diplopoda in Burma, are also presented.

Márgenes de la ciudad como márgenes de la nación en La cola de la serpiente de Leonardo Padura

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Karla Aguilar

2016-07-01

Full Text Available El concepto de Estado-Nación, construcción legitimada en las comunidades imaginadas de Benedict Anderson, ha sido ampliamente discutido en los últimos años. La obra de Leonardo Padura configura, en este sentido, nuevos procesos de resignificación cultural y política que rompen con la idea de unidad y homogeneidad de la identidad nacional. La cola de la serpiente agudiza esta ruptura con la introducción de la comunidad china en la Habana. El barrio chino será la metáfora de la pertenencia a la nación en cuanto sus espacios destruidos aterrizan los grandes “valores nacionales” a la inmediatez de la violencia y la necesidad. The concept of Nation-state, a construction legitimated in the approaches of imagined communities of Benedict Anderson, has been widely discussed in recent years. The work of Leonardo Padura configured, in this way, new processes of cultural and political redefinition which break with the idea of unity and homogeneity of national identity. La cola de la serpiente exacerbated this rupture with the introduction of the Chinese community in Havana. Chinatown is the metaphor of belonging to the nation as its destroyed spaces land the great “national values” to the immediacy of violence and necessity.

From Comparison Between Scientists to Gaining Cultural Scientific Knowledge. Leonardo and Galileo

Science.gov (United States)

Galili, Igal

2016-03-01

Physics textbooks often present items of disciplinary knowledge in a sequential order of topics of the theory under instruction. Such presentation is usually univocal, that is, isolated from alternative claims and contributions regarding the subject matter in the pertinent scientific discourse. We argue that comparing and contrasting the contributions of scientists addressing similar or the same subject could not only enrich the picture of scientific enterprise, but also possess a special appealing power promoting genuine understanding of the concept considered. This approach draws on the historical tradition from Plutarch in distant past and Koyré in the recent history and philosophy of science. It gains a new support in the discipline-culture structuring of the physics curriculum, seeking cultural content knowledge (CCK) of the subject matter. Here, we address two prominent individuals of Italian Renaissance, Leonardo and Galileo, in their dealing with issues relevant for introductory science courses. Although both figures addressed similar subjects of scientific content, their products were essentially different. Considering this difference is educationally valuable, illustrating the meaning of what students presently learn in the content knowledge of mechanics, optics and astronomy, as well as the nature of science and scientific knowledge.

De cuando Pinocho aprende valores. Una lectura de la novela de Collodi a la luz de las teorías de Shalom H. Schwartz y Leonardo Boff

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Carlos Rubio-Torres

2009-06-01

Carlo Collodi publicó los capítulos de la novela Pinocho entre 1880 y 1883. Desde entonces, se ha convertido en una obra fundamental de la literatura universal. En este artículo se contempla la posibilidad de que Pinocho ayude al lector a construir valores, con base en las perspectivas del psicólogo social Shalom H. Schwartaz y el teólogo Leonardo Boff.

チュワン族の年中行事に関する史的考察 : 成立過程を中心に

OpenAIRE

塚田, 誠之; ツカダ, シゲユキ; Shigeyuki, Tsukada

1992-01-01

It is generally known that the Zhuang have been strongly influencedby the Han-Chinese. In some respects the Zhuang extensively accepted"sinicization" of their culture, while in others they maintained thier traditions.Therefore, it is essential to map in which parts of their culture theZhuang accepted "sinicization," and in which parts they retained theirown culture.By using mainly Chinese source materials, this paper surveys the processof formation of seasonal ceremonies of the Zhuang, especi...

Nanosecond Neutron Analysis for the search of the lost Leonardo's masterpiece, the Battle of Anghiari

International Nuclear Information System (INIS)

Kuznetsov, A.V.; Gorshkov, I.Yu.; Evsenin, A.V.; Osetrov, O.I.; Vakhtin, D.N.; Cosentino, A.; Seracini, M.

2009-01-01

Between 1505 and 1506 Leonardo Da Vinci painted his masterpiece, the Battle of Anghiari, in Palazzo Vecchio's Hall of 500 in Florence. The unfinished mural remained visible until 1563, when architect Giorgio Vasari undertook a renovation of the Hall and all traces of the Battle of Anghiari were lost. However, scholarly interpretation and scientific evidence suggest that the mural could be on the eastern wall, hidden behind a brick wall built in 1563 by Vasari. This paper discusses the possibility of using NNA/APT (Nanosecond Neutron Analysis/Associated Particle Technique) to establish the presence of the masterpiece by identifying behind the Vasari's wall chemical elements from the gesso preparation layer of the mural and possibly from its pigments. This paper reports on the experiments run with a simple NNA/APT system and the Monte Carlo simulations that have been carried out in order to outline the experimental setup of an advanced NNA/APT able to detect and locate the tiny amount of gesso and pigments.

Täter- und Opfergeschichten. Schuld in Alois Hotschnigs Prosawerken «Aus», «Leonardos Hände» und «Ludwigs Zimmer»

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Friederike Gösweiner

2014-05-01

Full Text Available The assumption this article is based on is that guilt is perhaps the most important theme in Alois Hotschnig’s writing. This article therefore aims at analyzing Hotschnig’s focus on the theme of guilt in his novels. Three examples of Hotschnig’s prose work serve as case studies: his debut Aus, and the two novels Leonardos Hände, and Ludwigs Zimmer. Since guilt seems to be a very important topic in the Austrian literary tradition, this article also tries to establish whether and how Hotschnig takes up this grand Austrian tradition of writing about guilt.

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

Science.gov (United States)

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

2015-11-01

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

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

Science.gov (United States)

Minamino, Ryoko; Tateno, Masaki

2014-01-01

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

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

Science.gov (United States)

Minamino, Ryoko; Tateno, Masaki

2014-01-01

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

The influence of ancient Greek thought on fifteenth century anatomy: Galenic influence and Leonardo da Vinci.

Science.gov (United States)

Tubbs, Richard Isaiah; Gonzales, Jocelyn; Iwanaga, Joe; Loukas, Marios; Oskouian, Rod J; Tubbs, R Shane

2018-06-01

Leonardo da Vinci (1452-1519) can be called one of the earliest contributors to the history of anatomy and, by extension, the study of medicine. He may have even overshadowed Andreas Vesalius (1514-1564), the so-called founder of human anatomy, if his works had been published within his lifetime. While some of the best illustrations of their time, with our modern knowledge of anatomy, it is clear that many of da Vinci's depictions of human anatomy are inaccurate. However, he also made significant discoveries in anatomy and remarkable predictions of facts he could not yet discover with the technology available to him. Additionally, da Vinci was largely influenced by Greek anatomists, as indicated from his ideas about anatomical structure. In this historical review, we describe da Vinci's history, influences, and discoveries in anatomical research and his depictions and errors with regards to the musculoskeletal system, cardiovascular system, nervous system, and other organs.

Using Optical Coherence Tomography to Reveal the Hidden History of The Landsdowne Virgin of the Yarnwinder by Leonardo da Vinci and Studio.

Science.gov (United States)

Targowski, Piotr; Iwanicka, Magdalena; Sylwestrzak, Marcin; Frosinini, Cecilia; Striova, Jana; Fontana, Raffaella

2018-03-07

Optical coherence tomography (OCT) was used for non-invasive examination of a well-known, yet complex, painting from the studio of Leonardo da Vinci in combination with routine imaging in various bands of electromagnetic radiation. In contrast with these techniques, OCT provides depth-resolved information. Three post-processing modalities were explored: cross-sectional views, maps of scattering from given depths, and their 3D models. Some hidden alterations of the painting owing to past restorations were traced: retouching and overpainting with their positioning within varnish layers as well as indications of a former transfer to canvas. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

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

Energy Technology Data Exchange (ETDEWEB)

Gonzalez, Victor; Calligaro, Thomas [Centre de Recherche et de Restauration des Musees de France, C2RMF, Paris (France); PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, UMR8247, Paris (France); Pichon, Laurent; Mottin, Bruno [Centre de Recherche et de Restauration des Musees de France, C2RMF, Paris (France); Wallez, Gilles [PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, UMR8247, Paris (France); Sorbonne University, UPMC Univ., Paris 06 (France)

2015-11-15

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

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

International Nuclear Information System (INIS)

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

2015-01-01

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

Reconstrucción épica, poesía digital y material de archivo: ‘Perón, sinfonía del sentimiento’, de Leonardo Favio

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Wolfgang Bongers

2016-08-01

Full Text Available Leonardo Favio (1938-2012, una figura destacada del cine argentino, realiza su opus magnum Perón, sinfonía del sentimiento a fines de los años noventa, resultado de un largo trabajo de investigación en los archivos audiovisuales del país. Luego de presentar algunos ejes conceptuales del cine de Favio, este ensayo indaga en las estrategias del documental de revelar y ocultar hechos políticos ocurridos en Argentina (1916-1974, en función de transformar y (reconstruir la historia del peronismo en clave épica y poética.

Feasibility and effectiveness of a disease and care management model in the primary health care system for patients with heart failure and diabetes (Project Leonardo

Directory of Open Access Journals (Sweden)

Marco Matteo Ciccone

2010-04-01

Full Text Available Marco Matteo Ciccone1, Ambrogio Aquilino2, Francesca Cortese1, Pietro Scicchitano1, Marco Sassara1, Ernesto Mola3, Rodolfo Rollo4,Pasquale Caldarola5, Francesco Giorgino6, Vincenzo Pomo2, Francesco Bux21Section of Cardiovascular Disease, Department of Emergency and Organ Transplantation, School of Medicine, University of Bari, Bari, Italy; 2Agenzia Regionale Sanitaria – Regione Puglia (ARES, Apulia, Italy; 3ASL, Lecce, Italy; 4ASL, Brindisi, Italy; 5Cardiologia, Ospedale “Sarcone”, Terlizzi, Italy; 6Section of Endocrinology, Department of Emergency and Organ Transplantation, School of Medicine, University of Bari, Bari, ItalyPurpose: Project Leonardo represented a feasibility study to evaluate the impact of a disease and care management (D&CM model and of the introduction of “care manager” nurses, trained in this specialized role, into the primary health care system. Patients and methods: Thirty care managers were placed into the offices of 83 general practitioners and family physicians in the Apulia Region of Italy with the purpose of creating a strong cooperative and collaborative “team” consisting of physicians, care managers, specialists, and patients. The central aim of the health team collaboration was to empower 1,160 patients living with cardiovascular disease (CVD, diabetes, heart failure, and/or at risk of cardiovascular disease (CVD risk to take a more active role in their health. With the support of dedicated software for data collection and care management decision making, Project Leonardo implemented guidelines and recommendations for each condition aimed to improve patient health outcomes and promote appropriate resource utilization.Results: Results show that Leonardo was feasible and highly effective in increasing patient health knowledge, self-management skills, and readiness to make changes in health behaviors. Patient skill-building and ongoing monitoring by the health care team of diagnostic tests and services

Cost-Effectiveness of the 'One4All' HIV Linkage Intervention in Guangxi Zhuang Autonomous Region, China.

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Xiao Zang

Full Text Available In Guangxi Zhuang Autonomous Region, China, an estimated 80% of newly-identified antiretroviral therapy (ART-eligible patients are not engaged in ART. Delayed ART uptake ultimately translates into high rates of HIV morbidity, mortality, and transmission. To enhance HIV testing receipt and subsequent treatment uptake in Guangxi, the Chinese Center for Disease Control and Prevention (CDC executed a cluster-randomized trial to assess the effectiveness and cost-effectiveness of a streamlined HIV testing algorithm (the One4All intervention in 12 county-level hospitals.To determine the incremental cost-effectiveness of the One4All intervention delivered at county hospitals in Guangxi, China, compared to the current standard of care (SOC.Health System.1-, 5-and 25-years.We adapted a dynamic, compartmental HIV transmission model to simulate HIV transmission and progression in Guangxi, China and identify the economic impact and health benefits of implementing the One4All intervention in all Guangxi hospitals. The One4All intervention algorithm entails rapid point-of-care HIV screening, CD4 and viral load testing of individuals presenting for HIV screening, with same-day results and linkage to counselling. We populated the model with data from the One4All trial (CTN-0056, China CDC HIV registry and published reports. Model outcomes were HIV incidence, mortality, costs, quality-adjusted life years (QALYs, and the incremental cost-effectiveness ratio (ICER of the One4All intervention compared to SOC.The One4All testing intervention was more costly than SOC (CNY 2,182 vs. CNY 846, but facilitated earlier ART access, resulting in delayed disease progression and mortality. Over a 25-year time horizon, we estimated that introducing One4All in Guangxi would result in 802 averted HIV cases and 1629 averted deaths at an ICER of CNY 11,678 per QALY gained. Sensitivity analysis revealed that One4All remained cost-effective at even minimal levels of effectiveness

Leonardo-BRDF: A New Generation Satellite Constellation

Science.gov (United States)

Esper, Jaime; Neeck, Steven; Wiscombe, Warren; Ryschkewitsch, Michael; Andary, J. (Technical Monitor)

2000-01-01

Instantaneous net radiation flux at the top of the atmosphere is one of the primary drivers of climate and global change. Since the dawn of the satellite era, great efforts and expense have gone into measuring this flux from single satellites and even (for a several-year period) from a constellation of three satellites called ERBE. However, the reflected solar flux is an angular and spectral integral over the so-called "BRDF" or Bidirectional Reflectance Distribution Function, which is the angular distribution of reflected solar radiation for each solar zenith angle and each wavelength. Previous radiation flux satellites could not measure instantaneous BRDF, so scientists have had to fall back on models or composites. Because their range of observed solar zenith angles was very limited due to sunsynchronous orbits, the resultant flux maps are too inaccurate to see the dynamics of radiation flux or to reliably correlate it with specific phenomena (hurricanes, biomass fires, urban pollution, dust outbreaks, etc.). Accuracy only becomes acceptable after monthly averaging, but this washes out almost all cause-and-effect information, further exacerbated by the lack of spectral resolution. Leonardo-BRDF is a satellite system designed to measure the instantaneous spectral BRDF using a formation of highly coordinated satellites, all pointing at the same Earth targets at the same time. It will allow scientists for the first time to assess the radiative forcing of climate due to specific phenomena, which is bound to be important in the ongoing debate about global warming and what is causing it. The formation is composed of two satellite types having, as instrument payloads, single highly-integrated miniature imaging spectrometers or radiometers. Two nearby "keystone" satellites anchor the formation and fly in static orbits. They employ wide field of view imaging spectrometers that are extremely light and compact. The keystone satellites are identical and can operate in

Nanosecond Neutron Analysis for the search of the lost Leonardo's masterpiece, the Battle of Anghiari

Energy Technology Data Exchange (ETDEWEB)

Kuznetsov, A.V.; Gorshkov, I.Yu.; Evsenin, A.V.; Osetrov, O.I.; Vakhtin, D.N. [Applied Science and Technology Center (APSTEC Ltd.), Office 213, Gzhatskaya, 27, Saint-Petersburg 195220 (Russian Federation); Cosentino, A., E-mail: tonycosentino@yahoo.i [CISA3, Center of Interdisciplinary Science for Art, Architecture and Archaeology, University of California, San Diego, 9500 Gilman Dr. La Jolla, CA 92093-0436 (United States); Seracini, M. [CISA3, Center of Interdisciplinary Science for Art, Architecture and Archaeology, University of California, San Diego, 9500 Gilman Dr. La Jolla, CA 92093-0436 (United States)

2009-12-15

Between 1505 and 1506 Leonardo Da Vinci painted his masterpiece, the Battle of Anghiari, in Palazzo Vecchio's Hall of 500 in Florence. The unfinished mural remained visible until 1563, when architect Giorgio Vasari undertook a renovation of the Hall and all traces of the Battle of Anghiari were lost. However, scholarly interpretation and scientific evidence suggest that the mural could be on the eastern wall, hidden behind a brick wall built in 1563 by Vasari. This paper discusses the possibility of using NNA/APT (Nanosecond Neutron Analysis/Associated Particle Technique) to establish the presence of the masterpiece by identifying behind the Vasari's wall chemical elements from the gesso preparation layer of the mural and possibly from its pigments. This paper reports on the experiments run with a simple NNA/APT system and the Monte Carlo simulations that have been carried out in order to outline the experimental setup of an advanced NNA/APT able to detect and locate the tiny amount of gesso and pigments.

The proportion of the face in younger adults using the thumb rule of Leonardo da Vinci.

Science.gov (United States)

Oguz, O

1996-01-01

The present study was conducted to examine whether the thumb rule of Leonardo da Vinci could be an objective method in the determination of the natural and artistic proportions of human face. In this study, a sample of 400 subjects (200 male and 200 female, 22-25 years old) was used. Measurements were made of the length of thumb, the length of ear, the approximate distances between the hair line and the glabella or eyebrows, between the glabella or eyebrows and the tip of the nose and the distance between the nose and the chin, and the distance between the ear and the lateral aspect of the eye. The results obtained in the males and females showed significant (p thumb and the proportions of the face examined in the study. Additionally, the height of the face was found to be almost three times the length of the thumb. However, the measurements obtained from female subjects were on average smaller than those taken from males. The results obtained in this experiment could be of value in understanding of the evaluation of the face for the people working in plastic surgery or art.

Escrituras migrantes. Las cuatro orillas de la literatura en español. Entrevista a Leonardo Valencia

Directory of Open Access Journals (Sweden)

Carina González

2014-06-01

Full Text Available ¿Es posible hablar de cosmopolitismo dentro de los límites que impone la geografía cultural del Ecuador? Leonardo Valencia piensa que sí y se define como un escritor nómada. Asumiendo la diversidad étnica de su Guayaquil natal ha traspasado las fronteras físicas a partir de viajes y residencias en el extranjero. Entre 1993 y 1998 vivió en Lima, y a partir de este último año vive en España, pero virtualmente no conoce un destino fijo; autor de una ficción progresiva que impulsa a la escritura continua, sus proyectos desafían las convenciones editoriales. De la novela total a los libros de pequeño formato, de la letra impresa al libro flotante de la web, Valencia expande en Kazbek –novela editada en España (2008 y en Argentina (2009–, sus reflexiones sobre el canon literario, los desplazamientos de la identidad y los distintos modos de hacer ficción. La siguiente entrevista fue realizada en junio de 2011 en su Laboratorio de Escritura en la calle El Escorial, en la ciudad de Barcelona.

The furrows of Rhinolophidae revisited

OpenAIRE

Vanderelst, Dieter; Jonas, Reijniers; Herbert, Peremans

2012-01-01

Rhinolophidae, a family of echolocating bats, feature very baroque noseleaves that are assumed to shape their emission beam. Zhuang & Muller (Zhuang & Muller 2006 Phys. Rev. Lett. 97, 218701 (doi:10.1103/PhysRevLett.97.218701); Zhuang & Muller 2007 Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 76(Pt. 1), 051902 (doi:10.1103/PhysRevE.76.051902)) have proposed, based on finite element simulations, that the furrows present in the noseleaves of these bats act as resonance cavities. Using Rhinoloph...

The Psychological Roots of Creativity in Messages Left by Leonardo da Vinci, Giorgio Vasari, and a Neanderthal Troglodyte

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Antonio Cassella

2016-08-01

Full Text Available The perfect memory that informs our local autistic facet is insufficient to deal with the unforeseen change that challenges our nonlocal artistic facet. The loss of quantum nonlocality leads autistics to fail tests rooted in overcoming the less-than-perfect ambiguity that elicits our creativity. The psychological structure by which perfect memory and less-than-perfect creativity empower each other remains in darkness. This article broaches the hypothesis that Leonardo da Vinci envisioned the union of local perfection and nonlocal less-than-perfection, and that he hid his insight in the Adoration of the Magi. Leonardo’s knowledge - expressed here as the logos heuristic—guides a psychological interpretation of the smile of Mona Lisa; of the four avatars of the Vitruvian Man; of the recognition and location of Leonardo’s unknown painting Natività; of the exact location of his lost work, Battaglia di Anghiari; and of a 39,000-year-old abstract engraving in Gorham’s cave at Gibraltar. Logos can be used to single out local, nonlocal computing, and their alliance in pursuing a humanistic path to progress.

Práctica curricular Leonardo da Vinci como estrategia que favorece el desarrollo de la autonomía para reducción del abandono en la educación superior

OpenAIRE

Chica Cañas, Francisco Alonso

2016-01-01

La marca Leonardo Da Vinci concebida como una estrategia de formación para la autonomía a partir de las TIC fue incorporada dentro y fuera del aula de clase presencial para la reducción del abandono en el estudio, cuando el aprendiz desarrolla la creatividad y la imaginación con base en la observación de los postulados de las disciplinas con los anteojos del mundo virtual que conduce a un conocimiento experiencial y cognitivo para verificar los axiomas y taxonomías de los saberes, tomando com...

"Políticas Públicas: conceitos, esquemas de análise, casos práticos", de Leonardo Secchi

Directory of Open Access Journals (Sweden)

Alberto Abad

2017-12-01

Full Text Available O livro “Políticas Públicas: conceitos, esquemas de análise, casos práticos” (2014 de autoria do Doutor Leonardo Secchi, atual Pró-Reitor de Planejamento e Professor da Universidade do Estado de Santa Catarina, tem como objetivo introduzir de forma didática o tema das Políticas Públicas. Trata-se de um texto que pode ser utilizado tanto por aqueles que estão iniciando na área das Políticas Públicas, quanto por aqueles que desejam aprofundar no tema. Nesse sentido, o autor utiliza uma linguagem simples e direta e acrescenta, ao final da obra, um glossário de termos como complemento à leitura. O texto está organizado em torno a cinco dimensões das políticas públicas: de conteúdo (tipos de política pública; temporal (ciclos de políticas públicas; espacial (instituições; de atores; e comportamental (estilos de políticas públicas. Cada capítulo é concluído com um mini caso que aprofunda e fixar o tema desenvolvido pelo autor.

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

Science.gov (United States)

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

2005-06-01

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

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.

Science.gov (United States)

Lasonen, Johanna, Ed.

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

Unfolding Leonardo DA Vinci's Globe (ad 1504) to Reveal its Historical World Map

Science.gov (United States)

Verhoeven, G. J.; Missinne, S. J.

2017-08-01

This paper reports in detail on the image-based modelling and unwrapping approach used to create a two-dimensional projected map of an astonishing ostrich egg globe from AD 1504. This miniature egg globe is not only the oldest extant engraved globe, but it is also the oldest post-Columbian globe of the world and the first ever to depict Newfoundland and many other territories. The intention of digitally recording the surface geometry and colour of this unique artefact was to portray the original layout of the world map used by the Florentine Renaissance artist to make this globe. In addition, it was expected to substantiate iconographical details, which are hard to study at its scale of 1:80,000,000. The ostrich egg globe is the prototype of the Lenox Globe kept at the New York Public Library. The latter is very beneficial to examine how the egg globe looked like before being glued together at its equator. On the other hand, unfolding the map engraved in the ostrich egg halves enables a more detailed study of the remarkable details visible on both globes, since the engravings on the quasi-white egg surface are much easier to discern than those of the highly reflective red copper Lenox Globe. Finally, a detailed study of the unwrapped 3D surface is essential to learn more about the world vision of its creator and the incredible efforts that went into making this globe. Thanks to some particular pictographic details as well as the way in which the engravings are applied (by a left-handed person), the globe artist can be identified as Leonardo da Vinci.

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

Science.gov (United States)

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

2011-12-01

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

Breast-feeding patterns of ethnic groups in rural western China.

Science.gov (United States)

Qu, Pengfei; Wang, Ting; Liu, Fang; Dang, Shaonong; Zeng, Lengxia; Yan, Hong

2015-12-01

To determine the breast-feeding pattern of four main ethnic groups (the Han, Uygur, Tibetan and Zhuang) living in rural western China. The study utilized a cross-sectional design. Forty-five counties in ten provinces in western China in 2005. A sample of 11 783 children younger than 36 months old (8960 Han, 1281 Uygur, 792 Tibetan and 750 Zhuang) and their mothers were recruited using a stratified, multistage, cluster random sampling method. The rates of exclusive breast-feeding of children at 6 months of age in the Han, Uygur, Tibetan and Zhuang ethnic groups were 11.6 %, 0.8%, 4.4% and 13.8%, respectively. The rates of any breast-feeding for children at 24 months of age were 8.5%, 25.7%, 3.0% and 4.3% in the four ethnic groups, respectively. After adjusting for related factors, Zhuang children had a higher odds ratio of exclusive breast-feeding to 6 months compared with Han children, whereas Uygur and Tibetan children had lower odds ratio (Zhuang: OR=1.291; 95% CI 1.006, 1.657; Uugur: OR=0.062; 95% CI 0.032, 0.121; Tibetan: OR=0.323; 95% CI 0.220, 0.475). Uygur children had a lower hazard ratio of discontinued breast-feeding compared with Han children, whereas Tibetan children had a higher hazard ratio (Uygur: HR=0.368; 95% CI 0.333, 0.408; Tibetan: HR=1.366; 95% CI 1.244, 1.500). The breast-feeding pattern differed among the Han, Uygur, Tibetan and Zhuang ethnic groups. The results suggest that health education regarding the benefits of breast-feeding is needed in rural western China.

The furrows of Rhinolophidae revisited.

Science.gov (United States)

Vanderelst, Dieter; Jonas, Reijniers; Herbert, Peremans

2012-05-07

Rhinolophidae, a family of echolocating bats, feature very baroque noseleaves that are assumed to shape their emission beam. Zhuang & Muller (Zhuang & Muller 2006 Phys. Rev. Lett. 97, 218701 (doi:10.1103/PhysRevLett.97.218701); Zhuang & Muller 2007 Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 76(Pt. 1), 051902 (doi:10.1103/PhysRevE.76.051902)) have proposed, based on finite element simulations, that the furrows present in the noseleaves of these bats act as resonance cavities. Using Rhinolophus rouxi as a model species, they reported that a resonance phenomenon causes the main beam to be elongated at a particular narrow frequency range. Virtually filling the furrows reduced the extent of the main lobe. However, the results of Zhuang & Muller are difficult to reconcile with the ecological background of R. rouxi. In this report, we replicate the study of Zhuang & Muller, and extend it in important ways: (i) we take the filtering of the moving pinnae into account, (ii) we use a model of the echolocation task faced by Rhinolophidae to estimate the effect of any alterations to the emission beam on the echolocation performance of the bat, and (iii) we validate our simulations using a physical mock-up of the morphology of R. rouxi. In contrast to Zhuang & Muller, we find the furrows to focus the emitted energy across the whole range of frequencies contained in the calls of R. rouxi (both in simulations and in measurements). Depending on the frequency, the focusing effect of the furrows has different consequences for the estimated echolocation performance. We argue that the furrows act to focus the beam in order to reduce the influence of clutter echoes.

Recuperar el afán de conocimientos de Leonardo da Vinci en la era de las nuevas tecnologías: arte, ciencia y vida cotidiana

Directory of Open Access Journals (Sweden)

Carretero Gómez, Mª.B.

2007-09-01

Full Text Available En este artículo describimos de forma resumida el trabajo interdisciplinar,que formando parte de un proyecto de innovación educativa,han llevado a cabo un grupo de profesores de enseñanza secundaria pertenecientes al I.E.S.Isabel la Católica.El eje central del mismo ha sido la figura de Leonardo da Vinci maestro en numerosasdisciplinas:pintor,escultor,cocinero,inventor etc.Con él hemos querido contagiar a nuestros alumnos de su incansable afán por conocer y aprender.Se han realizado numerosas actividades (talleres,proyección de películas,recetas de cocina etc.quedestacan por la interconexión entre distintas áreas del saber y por la participación mayoritaria tanto del profesorado como del alumnado del centro.

UNFOLDING LEONARDO DA VINCI’S GLOBE (AD 1504 TO REVEAL ITS HISTORICAL WORLD MAP

Directory of Open Access Journals (Sweden)

G. J. Verhoeven

2017-08-01

Full Text Available This paper reports in detail on the image-based modelling and unwrapping approach used to create a two-dimensional projected map of an astonishing ostrich egg globe from AD 1504. This miniature egg globe is not only the oldest extant engraved globe, but it is also the oldest post-Columbian globe of the world and the first ever to depict Newfoundland and many other territories. The intention of digitally recording the surface geometry and colour of this unique artefact was to portray the original layout of the world map used by the Florentine Renaissance artist to make this globe. In addition, it was expected to substantiate iconographical details, which are hard to study at its scale of 1:80,000,000. The ostrich egg globe is the prototype of the Lenox Globe kept at the New York Public Library. The latter is very beneficial to examine how the egg globe looked like before being glued together at its equator. On the other hand, unfolding the map engraved in the ostrich egg halves enables a more detailed study of the remarkable details visible on both globes, since the engravings on the quasi-white egg surface are much easier to discern than those of the highly reflective red copper Lenox Globe. Finally, a detailed study of the unwrapped 3D surface is essential to learn more about the world vision of its creator and the incredible efforts that went into making this globe. Thanks to some particular pictographic details as well as the way in which the engravings are applied (by a left-handed person, the globe artist can be identified as Leonardo da Vinci.

Zhuang Zi's Rhetorical Thoughts.

Science.gov (United States)

Wang, Haixia

The memory of the student uprising at Tiananmen Square in 1989 invites one professor to examine more closely what she does: rhetoric and composition, especially rhetorical invention. To examine the kind of power exercised by official Chinese public discourse and whether language could help to avoid reoccurrences such as the loss of innocent…

Feasibility of Robotics and Machine Vision in Military Combat Ration Inspection (Short Term Project STP No. 11)

Science.gov (United States)

1994-06-01

January 1989. [11] Burdea G and Zhuang J. Dextrous telerobotics with force feedback - an overview - part 2: Control and implementation. Robotica , UK, 9...291-298, 1991. [12] Burdea G. and Zhuang J. Dextrous telerobotics with force feedback - an overview, part 1: Human I factors. Robotica , UK, 9:171-178...trans- planting workcell. In American Society of Agricultural Engineering, St. Joseph, MI, 1991. I [26] Frost A.R. Robotic milking: a review. Robotica

La igualdad en la medida de la calidad democrática Una revisión crítica de la propuesta de Leonardo Morlino

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Alejandro Sahui Maldonado

2016-01-01

Full Text Available El artículo analiza la noción de calidad democrática desarrollada por Leonardo Morlino y el papel que el valor de la igualdad desempeña en su medición. En la primera parte se revisa la concepción de igualdad política a partir de la obra de Robert Dahl, cuya definición mínima de democracia es adoptada por Morlino. En la segunda, se analiza el valor de la igualdad desde la perspectiva del autor italiano y se argumenta que en la evaluación de un régimen la importancia de esta como valor sustantivo no es clara en términos analíticos, debido a que se traslapa con otras dimensiones de la calidad: las procedimentales y las relativas a resultados. En la tercera parte, se propone que una noción de igualdad política como la ofrecida por Dahl ofrece mayores recursos para evaluar y realizar comparaciones empíricas en torno a la calidad democrática.

Una consideración sobre el espacio en Leonardo da Vinci, desde la ciencia, el arte y la filosofía

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Ana Cecilia Vallejo Clavijo

2012-01-01

Full Text Available La necesidad de captar, transmitir y comunicar la realidad a través del sen- tido de la vista, la experiencia vivida y la habilidad manual constituye uno de los propósitos más importantes en las obras de Leonardo da Vinci. S e aclar a, sin embargo, que al querer abordar el espacio en una pintura o en un dibujo, el proceso de elaboración de este debe inicialmente centrarse en operaciones mentales, dado que ellas mismas residen en el espíritu del pintor. Para Da Vinci, el espacio es concebido desde una peculiar visión de la matemática y la geometría, puesto que ellas mismas son conc ebidas desde una perspec tiva dinámica y visual. De la misma manera, el criter io adoptado par a analizar el desplazamiento del cuer po en el espacio es lo visual , lo cualitativo, acorde con el realismo aristotélico. El tránsit o de in tegración que presenta el artista entre la teoría y la práctica vendr á a c onstituirse en el eje fundamental de la ciencia moderna, en par ticular en la física newt oniana, dado su carácter operativo .

Cyanide Antidotes for Mass Casualties: Comparison of Intramuscular Injector by Autoinjector, Intraosseous Injection, and Inhalational Delivery

Science.gov (United States)

2015-12-01

animal model for studying cyanide poisoning. Mil Med. 2000;165: 967-972. 16. Broderick KE, Potluri P, Zhuang S, et al. Cyanide detoxification by the...cobalamin precursor cobinamide. Exp Biol Med (Maywood). 2006;231: 641-649. 17. Broderick KE, Balasubramanian M, Chan A, et al. The cobalamin precursor...vitamin B12. Methods Enzymol. 1971, 18c, 82−86. (45) Broderick , K. E.; Singh, V.; Zhuang, S.; Kambo, A.; Chen, J. C.; Sharma, V. S.; Pilz, R. B.; Boss

JORNAL O NACIONAL E BAIRRO LEONARDO ILHA: AS RELAÇÕES TRANSLINGÜÍSTICAS NA PRODUÇÃO DE SENTIDO

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Roberto José Ramos

2006-08-01

Full Text Available O presente ensaio é um estudo semiológico que tem como objeto de investigação a produção de sentido verbal e não-verbal de uma notícia, ilustrada com foto, publicada no Jornal O Nacional em Passo Fundo/RS sobre a comunidade de moradores do bairro Leonardo Ilha, localizado na zona urbana da mesma cidade. O teórico norteador da pesquisa é Roland Barthes, por intermédio de cinco categorias: Discurso (Pirâmides Normal, Invertida e Mista e Estereótipo; Fotografia (Studium e Punctum; Mito; Poder e Socioleto (Encrático e Acrático. Através das reflexões deste autor, o trabalho busca estabelecer relações entre o lingüístico e o translingüístico no acontecimento registrado. O método utilizado é a Dialética Histórico- Estrutural (DHE, que compatibiliza os princípios de movimento próprio da Dialética, e a invariância, própria do Estruturalismo, explicando a idéia de realidade, através de elementos formais e históricos, pertinentes à escolha do objeto e dos objetivos do ensaio. Palavras-chave: Jornalismo. Produção de sentido. Roland Barthes.

[Application of multiplex PCR for the screening of genotyping system for the rare blood groups Fy(a-), s-,k-,Di(b-) and Js(b-)].

Science.gov (United States)

Jiao, Wei; Xie, Li; Li, Hailan; Lan, Jiao; Mo, Zhuning; Yang, Ziji; Liu, Fei; Xiao, Ruiping; He, Yunlei; Ye, Luyi; Zhu, Ziyan

2014-04-01

To screen rare blood groups Fy(a-), s-, k-, Di(b-) and Js(b-) in an ethnic Zhuang population. Sequence-specific primers were designed based on single nucleotide polymorphism (SNP) sites of blood group antigens Fy(b) and s. A specific multiplex PCR system I was established. Multiplex PCR system II was applied to detect alleles antigens Di(b), k, Js(b)1910 and Js(b) 2019 at the same time. The two systems was were used to screen for rare blood group antigens in 4490 randomly selected healthy donors of Guangxi Zhuang ethnic origin. We successfully made the multiplex PCR system I. We detected the rare blood group antigens using the two PCR system. There are five Fy(a-), three s(-), two Di(b-) in 4490 Guangxi zhuang random samples. The multiplex PCR system I has achieved good accuracy and stability. With multiplex PCR systems I and II, 4490 samples were screened. Five Fy(a-), three s(-) and two Di(b-) samples were discovered. Multiplex PCR is an effective methods, which can be used for high throughput screening of rare blood groups. The rare blood types of Guangxi Zhuang ethnic origin obtained through the screening can provide valuable information for compatible blood transfusion. Through screening we obtained precious rare blood type materials which can be used to improve the capability of compatible infusion and reduce the transfusion reactions.

33　ヤオ族儀礼神画の研究 －広西チワン族自治区恭城ヤオ族自治県蓮華鎮黄泥岡村盤王祭を事例として－

OpenAIRE

譚, 静; Tan, Jing

2014-01-01

Yao is one of the 55 ethnic groups in China. It is widely distributed in the south part of China, for example, the Hunan province, Yunnan province, the Guangxi Zhuang Autonomous Region, Guangdong province and the Southeast Asia （Thailand, Laos, Vietnam etc.）This article is emphasized on the Yao in Huangnigang Village, Lianhua Town, Gongcheng Yao Autonomous County, which is located in the northwest part of theGuangxi Zhuang Autonomous Region neighboring the Hunan province.　So far the Yao peopl...

Rapid Field-Usable Cyanide Sensor Development for Blood and Saliva

Science.gov (United States)

2014-12-01

486-498. 6. Broderick , K. E.; Potluri, P.; Zhuang, S.; Scheffler, I. E.; Sharma, V. S.; Pilz, R. B.; Boss, G. R., Cyanide detoxification by the... Broderick , K. E.; Balasubramanian, M.; Chan, A.; Potluri, P.; Feala, J.; Belke, D. D.; McCulloch, A.; Sharma, V. S.; Pilz, R. B.; Bigby, T. D.; Boss, G. R...Ed. Elsevier Ltd: 2010; pp 486-498. 14. Broderick , K. E.; Potluri, P.; Zhuang, S.; Scheffler, I. E.; Sharma, V. S.; Pilz, R. B.; Boss, G. R

Analysis of an "off-ladder" allele at the Penta D short tandem repeat locus.

Science.gov (United States)

Yang, Y L; Wang, J G; Wang, D X; Zhang, W Y; Liu, X J; Cao, J; Yang, S L

2015-11-25

Kinship testing of a father and his son from Guangxi, China, the location of the Zhuang minority people, was performed using the PowerPlex® 18D System with a short tandem repeat typing kit. The results indicated that both the father and his son had an off-ladder allele at the Penta D locus, with a genetic size larger than that of the maximal standard allelic ladder. To further identify this locus, monogenic amplification, gene cloning, and genetic sequencing were performed. Sequencing analysis demonstrated that the fragment size of the Penta D-OL locus was 469 bp and the core sequence was [AAAGA]21, also called Penta D-21. The rare Penta D-21 allele was found to be distributed among the Zhuang population from the Guangxi Zhuang Autonomous Region of China; therefore, this study improved the range of DNA data available for this locus and enhanced our ability for individual identification of gene loci.

Control of Aedes aegypti larvae in household water containers by Chinese cat fish.

Science.gov (United States)

Wu, N; Wang, S S; Han, G X; Xu, R M; Tang, G K; Qian, C

1987-01-01

In 1980-81 an outbreak of dengue fever occurred in Guangdong province and in Guangxi-Zhuang autonomous region in the central-southern part of China. Subsequently, a nationwide survey indicated that the vector of the disease, Aedes aegypti, was confined to the coastal strip of Guangdong and Guangxi-Zhuang. Since the first case in the outbreak occurred in Guangxi-Zhuang, a community-based programme to control A. aegypti was set up in eight fishing villages of this region where the mosquito was breeding in household water containers. The principal method of control was use of the indigenous edible fish Clarias fuscus (Chinese cat fish), which is highly larvivorous and tolerant of harsh environmental conditions. Each container was stocked with a young fish, which could survive there for periods of up to a year. A team of primary medical personnel (barefoot doctors) made sure that the programme was correctly implemented. The programme was monitored from 1981 to 1985 in three of the villages, and the results indicated that the Breteau index remained at a low level throughout this period.

Big Data Sensors of Organic Advocacy: The Case of Leonardo DiCaprio and Climate Change.

Directory of Open Access Journals (Sweden)

Eric C Leas

Full Text Available The strategies that experts have used to share information about social causes have historically been top-down, meaning the most influential messages are believed to come from planned events and campaigns. However, more people are independently engaging with social causes today than ever before, in part because online platforms allow them to instantaneously seek, create, and share information. In some cases this "organic advocacy" may rival or even eclipse top-down strategies. Big data analytics make it possible to rapidly detect public engagement with social causes by analyzing the same platforms from which organic advocacy spreads. To demonstrate this claim we evaluated how Leonardo DiCaprio's 2016 Oscar acceptance speech citing climate change motivated global English language news (Bloomberg Terminal news archives, social media (Twitter postings and information seeking (Google searches about climate change. Despite an insignificant increase in traditional news coverage (54%; 95%CI: -144 to 247, tweets including the terms "climate change" or "global warming" reached record highs, increasing 636% (95%CI: 573-699 with more than 250,000 tweets the day DiCaprio spoke. In practical terms the "DiCaprio effect" surpassed the daily average effect of the 2015 Conference of the Parties (COP and the Earth Day effect by a factor of 3.2 and 5.3, respectively. At the same time, Google searches for "climate change" or "global warming" increased 261% (95%CI, 186-335 and 210% (95%CI 149-272 the day DiCaprio spoke and remained higher for 4 more days, representing 104,190 and 216,490 searches. This increase was 3.8 and 4.3 times larger than the increases observed during COP's daily average or on Earth Day. Searches were closely linked to content from Dicaprio's speech (e.g., "hottest year", as unmentioned content did not have search increases (e.g., "electric car". Because these data are freely available in real time our analytical strategy provides substantial

Big Data Sensors of Organic Advocacy: The Case of Leonardo DiCaprio and Climate Change.

Science.gov (United States)

Leas, Eric C; Althouse, Benjamin M; Dredze, Mark; Obradovich, Nick; Fowler, James H; Noar, Seth M; Allem, Jon-Patrick; Ayers, John W

2016-01-01

The strategies that experts have used to share information about social causes have historically been top-down, meaning the most influential messages are believed to come from planned events and campaigns. However, more people are independently engaging with social causes today than ever before, in part because online platforms allow them to instantaneously seek, create, and share information. In some cases this "organic advocacy" may rival or even eclipse top-down strategies. Big data analytics make it possible to rapidly detect public engagement with social causes by analyzing the same platforms from which organic advocacy spreads. To demonstrate this claim we evaluated how Leonardo DiCaprio's 2016 Oscar acceptance speech citing climate change motivated global English language news (Bloomberg Terminal news archives), social media (Twitter postings) and information seeking (Google searches) about climate change. Despite an insignificant increase in traditional news coverage (54%; 95%CI: -144 to 247), tweets including the terms "climate change" or "global warming" reached record highs, increasing 636% (95%CI: 573-699) with more than 250,000 tweets the day DiCaprio spoke. In practical terms the "DiCaprio effect" surpassed the daily average effect of the 2015 Conference of the Parties (COP) and the Earth Day effect by a factor of 3.2 and 5.3, respectively. At the same time, Google searches for "climate change" or "global warming" increased 261% (95%CI, 186-335) and 210% (95%CI 149-272) the day DiCaprio spoke and remained higher for 4 more days, representing 104,190 and 216,490 searches. This increase was 3.8 and 4.3 times larger than the increases observed during COP's daily average or on Earth Day. Searches were closely linked to content from Dicaprio's speech (e.g., "hottest year"), as unmentioned content did not have search increases (e.g., "electric car"). Because these data are freely available in real time our analytical strategy provides substantial lead time

Performance Evaluation of Satellite Communication Systems Operating in the Q/V/W Bands

Science.gov (United States)

2013-06-30

Lorenzo Luini and Prof. Carlo Capsoni Politecnico di Milano Dipartimento di Elettronica, Informazione e Biongegneria Piazza Leonardo Da Vinci 32...di Elettronica, Informazione e Biongegneria Piazza Leonardo Da Vinci 32 Milano, 20133 ITALY 8. PERFORMING ORGANIZATION REPORT NUMBER...Principal Investigator: Dr. Lorenzo Luini Authors: Dr. Lorenzo Luini and Prof. Carlo Capsoni 20133 Milano (Italy) Piazza Leonardo Da Vinci 32 Tel

Polycythemia and paraganglioma with a novel somatic HIF2A mutation in a male.

Science.gov (United States)

Toyoda, Hidemi; Hirayama, Jyunya; Sugimoto, Yuka; Uchida, Keiichi; Ohishi, Kohshi; Hirayama, Masahiro; Komada, Yoshihiro

2014-06-01

Recently, a new syndrome of paraganglioma, somatostatinoma, and polycythemia has been discovered (known as Pacak-Zhuang syndrome). This new syndrome, with somatic HIF2A gain-of-function mutations, has never been reported in male patients. We describe a male patient with Pacak-Zhuang syndrome who carries a newly discovered HIF2A mutation. Congenital polycythemias have diverse etiologies, including germline mutations in the oxygen-sensing pathway. These include von Hippel-Lindau (Chuvash polycythemia), prolyl hydroxylase domain-containing protein-2, and hypoxia-inducible factor-2α (HIF-2α). Somatic gain-of-function mutations in the gene encoding HIF-2α were reported in patients with paraganglioma and polycythemia and have been found exclusively in female patients. Through sequencing of the HIF2A using DNA from paraganglioma in 15-year-old male patient, we identified a novel mutation of HIF2A: a heterozygous C to A substitution at base 1589 in exon 12 of HIF2A. The mutation was not found in germline DNA from leukocytes. The C1589A mutations resulted in substitution of alanine 530 in the HIF-2α protein with glutamic acid. This mutation is undoubtedly associated with increased HIF-2α activity and increased protein half-life, because it affects the vicinity of the prolyl hydroxylase target residue, proline 531. To our knowledge, this is the first report describing Pacak-Zhuang syndrome with somatic gain-of-function mutation in HIF2A in a male patient. Congenital polycythemia of unknown origin should raise suspicion for the novel disorder Pacak-Zhuang syndrome, even in male patients. Copyright © 2014 by the American Academy of Pediatrics.

Development of a Modular, Provider Customized Airway Trainer

Science.gov (United States)

2015-11-25

data used to evaluate student performance. This transformation was done by the Airway Firmware on an Arduino Leonardo. The Airway Firmware transmitted...USB HID protocol, the Arduino Leonardo was selected. Figure 13: Electronics and Firmware W911NF-13-2-0033 Airway II Final Report...CREST U of MN Nov 2015 Page 12 of 35 The microchip, around which the Arduino Leonardo was built, readily supported USB HID through

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

Science.gov (United States)

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

2013-03-01

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

Profile of microbial communities on carbonate stones of the medieval church of San Leonardo di Siponto (Italy) by Illumina-based deep sequencing.

Science.gov (United States)

Chimienti, Guglielmina; Piredda, Roberta; Pepe, Gabriella; van der Werf, Inez Dorothé; Sabbatini, Luigia; Crecchio, Carmine; Ricciuti, Patrizia; D'Erchia, Anna Maria; Manzari, Caterina; Pesole, Graziano

2016-10-01

Comprehensive studies of the biodiversity of the microbial epilithic community on monuments may provide critical insights for clarifying factors involved in the colonization processes. We carried out a high-throughput investigation of the communities colonizing the medieval church of San Leonardo di Siponto (Italy) by Illumina-based deep sequencing. The metagenomic analysis of sequences revealed the presence of Archaea, Bacteria, and Eukarya. Bacteria were Actinobacteria, Proteobacteria, Bacteroidetes, Cyanobacteria, Chloroflexi, Firmicutes and Candidatus Saccharibacteria. The predominant phylum was Actinobacteria, with the orders Actynomycetales and Rubrobacteriales, represented by the genera Pseudokineococcus, Sporichthya, Blastococcus, Arthrobacter, Geodermatophilus, Friedmanniella, Modestobacter, and Rubrobacter, respectively. Cyanobacteria sequences showing strong similarity with an uncultured bacterium sequence were identified. The presence of the green algae Oocystaceae and Trebuxiaceae was revealed. The microbial diversity was explored at qualitative and quantitative levels, evaluating the richness (the number of operational taxonomic units (OTUs)) and the abundance of reads associated with each OTU. The rarefaction curves approached saturation, suggesting that the majority of OTUs were recovered. The results highlighted a structured community, showing low diversity, made up of extremophile organisms adapted to desiccation and UV radiation. Notably, the microbiome appeared to be composed not only of microorganisms possibly involved in biodeterioration but also of carbonatogenic bacteria, such as those belonging to the genus Arthrobacter, which could be useful in bioconservation. Our investigation demonstrated that molecular tools, and in particular the easy-to-run next-generation sequencing, are powerful to perform a microbiological diagnosis in order to plan restoration and protection strategies.

Identification of Three Types of α-Thalassemia Deletion, -α21.9, -α2.4, and - -THAI, and Their Frequencies, in One Family in the Population of Southern Guangxi Zhuang Autonomous Region, People's Republic of China.

Science.gov (United States)

Pang, Wanrong; Long, Ju; Weng, Xunjin; Fan, Qiongying; Sun, Lei; Pan, Zhijian; Fan, Zuqian

2018-01-01

Different types of deletional α-thalassemia (α-thal) have been reported by researchers in China. This study describes one family carrying -α 21.9 (NG_000006.1: g.14373_36299delinsGGGAAGGGTGGGTGGGAATAACAGCTTTT), -α 2.4 (NG_000006.1: g.36860_39251del) and - - THAI (Thailand) (NG_000006.1: g.10664_44164del) alleles in Guangxi Zhuang Autonomous Region, People's Republic of China (PRC), and reports the frequencies of these types in the population of this region. The proband was a 4-year-old girl, who screened positive for thalassemia, although the thalassemia genotype results were normal when screened using the routine kits. Samples of the proband's parents were also collected to perform further analyses. Two real-time gap-polymerase chain reaction (gap-PCR) systems were designed for separate detection of - - THAI and screening for -α 21.9 and -α 2.4 . The genotype of the proband was -α 21.9 /-α 2.4 , and the two variants were inherited from her parents. In the frequency study, five - - THAI , four -α 21.9 and 11 -α 2.4 positive individuals were detected in the 3410 random samples. Thus, allele frequencies of -α 21.9 , - - THAI and -α 2.4 in the population of southern Guangxi were determined as 0.059, 0.073 and 0.161%, respectively. This is the first report of an individual carrying the -α 21.9 /-α 2.4 genotype, and the first report of the detection of -α 21.9 , -α 2.4 and - - THAI in a single family. The total frequency for these alleles was 0.293% in southern Guangxi, suggesting that the thalassemia clinical center in this region should utilize a screening kit that allows detection of these types of deletions for a more comprehensive evaluation of thalassemia risk.

Introduction to Kinetic Model Equations

Science.gov (United States)

2011-01-01

application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 ∗Dipartimento di Matematica del Politecnico di Milano Piazza Leonardo da Vinci 32...NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Dipartimento di Matematica del Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milano

Corexit 9500 microcosm data

Data.gov (United States)

U.S. Environmental Protection Agency — Relative abundance of bacterial groups in the microcosms. This dataset is associated with the following publication: Techtman, S., M. Zhuang, P. Campo-Moreno, E....

Spatial distribution of HIV, HCV, and co-infections among drug users in the southwestern border areas of China (2004-2014): a cohort study of a national methadone maintenance treatment program.

Science.gov (United States)

Li, Mingli; Li, Rongjian; Shen, Zhiyong; Li, Chunying; Liang, Nengxiu; Peng, Zhenren; Huang, Wenbo; He, Chongwei; Zhong, Feng; Tang, Xianyan; Lan, Guanghua

2017-09-30

A methadone maintenance treatment (MMT) program to curb the dual epidemics of HIV/AIDS and drug use has been administered by China since 2004. Little is known regarding the geographic heterogeneity of HIV and hepatitis C virus (HCV) infections among MMT clients in the resource-constrained context of Chinese provinces, such as Guangxi. This study aimed to characterize the geographic distribution patterns and co-clustered epidemic factors of HIV, HCV and co-infections at the county level among drug users receiving MMT in Guangxi Zhuang Autonomous Region, located in the southwestern border area of China. Baseline data on drug users' demographic, behavioral and biological characteristics in the MMT clinics of Guangxi Zhuang Autonomous Region during the period of March 2004 to December 2014 were obtained from national HIV databases. Residential addresses were entered into a geographical information system (GIS) program and analyzed for spatial clustering of HIV, HCV and co-infections among MMT clients at the county level using geographic autocorrelation analysis and geographic scan statistics. A total of 31,015 MMT clients were analyzed, and the prevalence of HIV, HCV and co-infections were 13.05%, 72.51% and 11.96% respectively. Both the geographic autocorrelation analysis and geographic scan statistics showed that HIV, HCV and co-infections in Guangxi Zhuang Autonomous Region exhibited significant geographic clustering at the county level, and the Moran's I values were 0.33, 0.41 and 0.30, respectively (P areas surrounding P county. HIV, HCV and co-infections among MMT clients in Guangxi Zhuang Autonomous Region all presented substantial geographic heterogeneity at the county level with a number of overlapping significant clusters. The areas surrounding P county were effective in enrolling high-risk clients in their MMT programs which, in turn, might enable people who inject drugs to inject less, share fewer syringes, and receive referrals for HIV or HCV treatment in

Solving Kinetic Equations on GPU’s

Science.gov (United States)

2011-01-01

7 Acknowledgments 23 8 Appendix: CUDA pseudo-codes 27 ∗Dipartimento di Matematica del Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milano...PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Dipartimento di Matematica del Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milano, Italy 8

Eestlased muugivad da Vinci koodi / Mart Zirnask

Index Scriptorium Estoniae

Zirnask, Mart

2009-01-01

Itaalia kunstiajaloolane Nicola Barbatelli leidis tuttava kunstikogu korrastades Leonardo da Vinci arvatava autoportree. Tallinna Ülikooli maaliosakonna juhataja Orest Kormašov voolis maali järgi skulptuuri, et pilti võrrelda Leonardo õpilase Francesco Melzi tööga. Graafiline disainer Helen Kokk modelleeris arvutil maalist kolmedimensioonilise mudeli

Estimating Anthropometric Marker Locations from 3-D LADAR Point Clouds

Science.gov (United States)

2011-06-01

http://perception.inrialpes. fr/Publications/2008/CMKBH08. [17] Da Vinci , L. The Notebooks of Leonardo Da Vinci Complete. Public Domain, 2004. [18] Duda...the problem is based on historical research into the proper proportioning of the human body. A famous example of this research is Leonardo da Vinci’s

New Project in Huacheng Paper of Guangxi State Farms Sugar Group Laid the Foundation Stone

Institute of Scientific and Technical Information of China (English)

2010-01-01

@@ The foundation-stone laying ceremony of 200,000 t/y culture paper project in Huacheng Paper, a member of Guangxi State Farms Sugar Group, was held in Laibin, Guangxi Zhuang Autonomous Region, on October 18, 2009.

Arsenic bioleaching in medical realgar ore and arsenic- bearing ...

African Journals Online (AJOL)

Oxidation of these two ores by sulfuric acid was insignificant, as maximum arsenic leaching ratios ... Poor water solubility and weak gastrointestinal absorption of coarse ..... Wu XH, Sun DH, Zhuang ZX, Wang XR, Gong HF, Hong. JX, Lee FSC.

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

Science.gov (United States)

Chaucer, Harry

2012-01-01

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

At the Origin of Leonardo’s Ideal Man

Directory of Open Access Journals (Sweden)

Claudio Sgarbi

2012-06-01

Full Text Available After the discovery and the research developed in the last twenty years, it has been possible to announce, in 2010, a convincing attribution for the manuscript brought to the attention of the public as Vitruvio Ferrarese. The author is Giacomo Andrea da  Ferrara. Luca Pacioli defined him a great expert on Vitruvius and a very close friend of Leonardo da Vinci (“suo quanto fratello”. The discovery of the author was possible just because of the profound relationships between the drawings of Giacomo Andrea and Leonardo in the creation of the famous Vitruvian Man. The reconstructed phases of the drawing process show that the beginning of the formation of the images took place on the folios of the manuscript by Giacomo Andrea with an intense collaboration with Leonardo. Notwithstanding the creative team work, taking place between the two artists in Milan at the end of XV century, Giacomo and Leonardo ended up representing rather different ideal men. The tragic death of Giacomo Andrea in 1500 has obscured his role in the culture of the Renaissance.

QTL Information Table: 454 [Q-TARO

Lifescience Database Archive (English)

Full Text Available 61 rgn Zhuang, J.Y., Fan, Y.Y., Wu, J.L., Xia, Y.W., and Zheng, K.L. (2000). Mapping major and minor QTL for rice CMS-WA fertility restoration. Rice Genetics Newsletter 17, 56-59. ...

Предполагаемый автопортрет Леонардо да Винчи в Эстонии

Index Scriptorium Estoniae

2010-01-01

Kadrioru Kunstimuuseumis eksponeeritakse 5.-12. veebruarini 2010 Leonardo da Vinci arvatavat autoportreed, 6. veebruaril toimub Tallinna Ülikoolis rahvusvaheline konverents "A Key to Leonardo". Lõuna-Itaalia erakogust leitud maali analüüsimisega tegelesid Tallinna Ülikooli maali ja maalitehnoloogia õppejõud Orest Kormašov, kes valmistas klassikalise portreeskulptuuri, arvutisimulatsiooni teostas Eesti Kunstiakadeemia graafilise disaini tudeng Helen Kokk

Particle Size Control for PIV Seeding Using Dry Ice

Science.gov (United States)

2010-03-01

in flight actually being carried out, the observations, drawings and notes of Leonardo da Vinci showed an analytical process to develop a way for...theoretical particle response: dvp dt = −C(vp − U) C = 18µ ρpd2p 86 87 Bibliography 1. Linscott, R. N. and Da Vinci , L., The Notebooks of Leonardo Da Vinci

Genetic diversity of Pogonatherum paniceum (Lam.) Hack. in ...

African Journals Online (AJOL)

Amplified fragment length polymorphism (AFLP) markers were used to estimate the genetic diversity of Pogonatherum paniceum (Lam.) Hack. from Sichuan Province, Yunnan Province, Chongqing City and. Guangxi Zhuang autonomous Region in China. 10 primer combinations were carried out on 180 different individuals ...

The Economics of Sorruption and Cronyism: an institutional approach

NARCIS (Netherlands)

B. Krug (Barbara); H. Hendrischke (Hans)

2001-01-01

textabstractMoral outrage was the response of the Chinese press, when Cheng Kejie, one of the country's highest officials, Vice-Chairman of the Standing Committee of the National People's Congress (NPC) and former Governor of the Guangxi Zhuang Autonomous Region, was arrested on grounds of

Genetic diversity of Pogonatherum paniceum (Lam.) Hack in ...

African Journals Online (AJOL)

Inter-simple sequence repeats markers were used to estimate the genetic diversity of Pogonatherum paniceum (Lam.) Hack. from Sichuan Province, Yunnan Province, Chongqing City and Guangxi Zhuang Autonomous Region in China. 100 primers were carried out on 22 wild populations, 14 could produce highly ...

Identifying miRNA and gene modules of colon cancer associated with pathological stage by weighted gene co-expression network analysis

Directory of Open Access Journals (Sweden)

Zhou X

2018-05-01

Full Text Available Xian-guo Zhou,1,2,* Xiao-liang Huang,1,2,* Si-yuan Liang,1–3 Shao-mei Tang,1,2 Si-kao Wu,1,2 Tong-tong Huang,1,2 Zeng-nan Mo,1,2,4 Qiu-yan Wang1,2,5 1Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China; 2Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China; 3Department of Colorectal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China; 4Department of Urology and Nephrology, The First Affiliated Hospital of Guangxi, Medical University, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China; 5Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People’s Republic of China *These authors contributed equally to this work Introduction: Colorectal cancer (CRC is the fourth most common cause of cancer-related mortality worldwide. The tumor, node, metastasis (TNM stage remains the standard for CRC prognostication. Identification of meaningful microRNA (miRNA and gene modules or representative biomarkers related to the pathological stage of colon cancer helps to predict prognosis and reveal the mechanisms behind cancer progression.Materials and methods: We applied a systems biology approach by combining differential expression analysis and weighted gene co-expression network analysis (WGCNA to detect the pathological stage-related miRNA and gene modules and construct a miRNA–gene network. The Cancer Genome Atlas (TCGA colon adenocarcinoma (CAC RNA-sequencing data and miRNA-sequencing data were subjected to WGCNA analysis, and the GSE29623, GSE35602 and GSE39396 were utilized to validate and

Practitioner-Initiated Workplace-Based Conjoint Collaboration within an Adult Education Institution toward Democratic Schooling: A Distributed Leadership Perspective

Science.gov (United States)

Fang, Ya-Hui; Huang, Shen-Tzay

2015-01-01

This paper examines an account of a practitioner-initiated transformation of workplace-based social relationship within a grassroots adult education institution. This tripartite relationship among adult students, staff and teachers, abbreviated as AST, is a major driving force for activities and missionary functioning of the XinZhuang Community…

Electromagnetic probes of strongly interacting matter

Indian Academy of Sciences (India)

2015-05-07

May 7, 2015 ... Collisions between two nuclei at relativistic energies will create charged particles – either in .... The thermal cutting rules give a systematic procedure to express ...... mesons due to its interaction with the thermal partons [80] and employment of running .... [16] J Deng, Q Wang, N Xu and P Zhuang, Phys. Lett.

Molecular characterization and expression analysis of chalcone ...

African Journals Online (AJOL)

Chalcone synthase (CHS, EC: 2.3.1.74) is a key enzyme in the flavonoid and anthocyanin biosynthesis pathway. In order to investigate the role of CHS in tree peony flower coloration mechanism, we isolated and characterized the CHS gene from Paeonia suffruticosa cv. Yu Ji Yan Zhuang and analyzed its spatial and ...

Work continues on Destiny, the U.S. Lab module, in the Space Station Processing Facility

Science.gov (United States)

1999-01-01

In the Space Station Processing Facility (SSPF), work continues on the U.S. Lab module, Destiny, which is scheduled to be launched on Space Shuttle Endeavour in early 2000. It will become the centerpiece of scientific research on the International Space Station. Destiny shares space in the SSPF with the Shuttle Radar Topography Mission (SRTM) and Leonardo, the Multipurpose Logistics Module (MPLM) built by the Agenzia Spaziale Italiana (ASI). The SRTM is targeted for launch on mission STS-99 in September 1999. Leonardo is scheduled to launch on mission STS- 102 in June 2000.

Enhanced thermoelectric properties of p-type polycrystalline SnSe by regulating the anisotropic crystal growth and Sn vacancy

Science.gov (United States)

Liu, Chengyan; Miao, Lei; Wang, Xiaoyang; Wu, Shaohai; Zheng, Yanyan; Deng, Ziyang; Chen, Yulian; Wang, Guiwen; Zhou, Xiaoyuan

2018-04-01

Not Available Project supported by the National Natural Science Foundation of China (Grant Nos. 51572049, 51562005, and 51772056), the Natural Science Foundation of Guangxi Zhuang Automomous Region, China (Grant Nos. 2015GXNSFFA139002 and 2016GXNSFBA380152), and the Open Fund of Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences (Grant No. CRYO201703).

Differential PIXE for investigating the layer structure of paintings

Science.gov (United States)

Mandò, P. A.; Fedi, M. E.; Grassi, N.; Migliori, A.

2005-09-01

This paper reports an example of how the differential PIXE technique can be successfully applied to the investigation of wood or canvas paintings. The work analysed is a famous wood painting by Leonardo da Vinci, the "Madonna dei fusi" (ex-Reford version, 1501), chosen for a pilot study in a wide international project aimed at analysing Leonardo's works of art by means of non-destructive techniques. While illustrating the results obtained concerning the identification of pigments and the discrimination of the stratigraphy of layers, the merits and limits of differential PIXE in general are pointed out.

Differential PIXE for investigating the layer structure of paintings

International Nuclear Information System (INIS)

Mando, P.A.; Fedi, M.E.; Grassi, N.; Migliori, A.

2005-01-01

This paper reports an example of how the differential PIXE technique can be successfully applied to the investigation of wood or canvas paintings. The work analysed is a famous wood painting by Leonardo da Vinci, the 'Madonna dei fusi' (ex-Reford version, 1501), chosen for a pilot study in a wide international project aimed at analysing Leonardo's works of art by means of non-destructive techniques. While illustrating the results obtained concerning the identification of pigments and the discrimination of the stratigraphy of layers, the merits and limits of differential PIXE in general are pointed out

HOTEL INFORMATION

Institute of Scientific and Technical Information of China (English)

无

2011-01-01

Argyle Whahol Resort Argyle Hotel Management Group (Australia) has signed an agreement with Wuxing Chuangzhan Investment Holding Company to build a five-star holiday hotel.The new project, Argyle Whahol Resort, is located in Chongzuo of southwest China’s Guangxi Zhuang Autonomous Region. The project covers an area of 26,000 square meters with a total investment of 3 billion yuan ($473.4 million).

Nähtamatud seinad / Leonardo Meigas

Index Scriptorium Estoniae

Meigas, Leonardo, 1952-

2011-01-01

Saksa arsti Ernst Hartmanni maa kiirgusväljade mõju uurimisest inimesele , nn Hartmanni ja Curry võrgustikest. L. Meigase kavandatud valgusinstallatsioonist "Hartmanni võre", mis ajendatud vastavast teooriast

A second Leonardo da Vinci?

Science.gov (United States)

Nakano, Mitsuko; Endo, Toshitaka; Tanaka, Shigeki

2003-10-01

We describe a young woman who suddenly began mirror writing with her right hand and has not reverted to normal writing for more than 6 years, although she writes normally with her left hand. She is ambidextrous, although she had previously used only her right hand for writing and drawing. Since it is much easier for her to use right-handed mirror writing, she uses her left hand only for writing meant to be read by others and her right hand for all other writing. Her hobbies are sculpture and painting, and her chief complaint is migraine accompanied by sensory and perceptive disturbances.

The effectiveness of a combined exercise intervention on physical fitness factors related to falls in community-dwelling older adults

OpenAIRE

Zhuang J; Huang L; Wu Y; Zhang Y

2014-01-01

Jie Zhuang,1,* Liang Huang,1,2,* Yanqiang Wu,3 Yanxin Zhang2 1School of Kinesiology, Shanghai University of Sport, Shanghai, People's Republic of China; 2Department of Sport and Exercise Science, The University of Auckland, Auckland, New Zealand; 3Shanghai Municipal Center for Students' Physical Fitness and Health Surveillance, Shanghai, People's Republic of China *These authors contributed equally to this work Abstract: This study aimed to evaluate the effectiveness ...

Protective effect of galangin in Concanavalin A-induced hepatitis in mice

OpenAIRE

Luo, Qingqiong; Zhu, Liping; Ding, Jieying; Zhuang, Xing; Xu, Lili; Chen, Fuxiang

2015-01-01

Qingqiong Luo,1,* Liping Zhu,1,* Jieying Ding,1 Xing Zhuang,1 Lili Xu,2 Fuxiang Chen1 1Department of Clinical Immunology, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, 2Division of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, People’s Republic of China *These authors contributed equally to this work Abstract: Galangin is an active pharmacological ingredient from propolis and Alpinia officinarum Hance, an...

Job Satisfaction Analysis in Rural China: A Qualitative Study of Doctors in a Township Hospital

OpenAIRE

Chen, Qiwei; Yang, Lan; Feng, Qiming; Tighe, Scott S.

2017-01-01

Background. Township hospitals in China provide rural communities with basic but much needed critical health care services. The doctors working in these hospitals often feel unsatisfied when considering their work schedules and financial rewards. Method. To explore job satisfaction of health workers in a township hospital, a qualitative study was conducted of 39 doctors from five township hospitals in Guangxi Zhuang Autonomous Region. The goal was to understand the level of job satisfaction o...

Protective effect of galangin in Concanavalin A- induced hepatitis in mice

OpenAIRE

Luo Q; Zhu L; Ding J; Zhuang X; Xu L; Chen F

2015-01-01

Qingqiong Luo,1,* Liping Zhu,1,* Jieying Ding,1 Xing Zhuang,1 Lili Xu,2 Fuxiang Chen1 1Department of Clinical Immunology, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, 2Division of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, People’s Republic of China *These authors contributed equally to this work Abstract: Galangin is an active pharmacological ingredient from propolis and Alpinia officinarum Hance, and has been r...

EQF kutsehariduses ehk mida me Hollandis õppisime / Anu Vaagen

Index Scriptorium Estoniae

Vaagen, Anu, 1971-

2011-01-01

Leonardo da Vinci programmi finantseeriva projekti EQF kaudu käisid Luua Metsanduskooli direktor, arendusjuht ja maastikuehituse õpetaja Hollandis kompetentsipõhise õppe ja kooli juhtimise vallas teadmisi omandamas

Shahmatnõi sjurpriz da Vintshi / Christian Fraser

Index Scriptorium Estoniae

Fraser, Christian

2008-01-01

Põhja-Itaalias asuvast eraraamatukogust leiti itaalia matemaatiku ja frantsiskaani munga Luca Pacioli käsikiri maleülesandeid kujutavate joonistega, mille autoriks võib olla kunstnik Leonardo da Vinci

Enhanced effect and mechanism of water-in-oil microemulsion as an oral delivery system of hydroxysafflor yellow A

OpenAIRE

Qi, Jianping; Ping ,Qineng

2011-01-01

Jianping Qi1,2, Jie Zhuang1, Wei Wu2, Yi Lu2, Yunmei Song3, Zhetao Zhang1, Jia Jia1, Qineng Ping11School of Pharmacy, China Pharmaceutical University, Nanjing, People’s Republic of China; 2School of Pharmacy, Fudan University, Shanghai, People’s Republic of China; 3School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, AustraliaBackground: A microemulsion is an effective formulation for improving the oral bioavailability of poorly soluble drugs. ...

A macroeconomic perspective on the rise of second-tier cities in the national and globalizing context of China

OpenAIRE

Cadez, Fabien; Cadez, Fabien

2016-01-01

Since China’s economic reforms in the late 1970s, foreign investments have initially flooded the so-called “first-tier cities” including Shanghai, Beijing, or even Shenzhen or Guangzhou. Due to rising labour costs, growing constraints over natural resources, long-term inflation and environmental issues among others (Zhuang et al. 2012; Zuojun, 2012), they have been undertaking structural economic adjustments in order to shift from a “late-developing advantage” to a “first-mover advantage” mod...

Agening and qualification

DEFF Research Database (Denmark)

Pedersen, Bibi Bording; Sørensen, John Houman

2006-01-01

"Alder og kvalifikationer" - et Leonardo da Vinci EU finansieret projekt, der sammenligner ældres stilling på arbejdsmarkedet i Belgien, Holland, Tyskland og Danmark. Projektet blev koordineret af Erfurt universitet....

Kahe riigi õpilased elustasid legende / Karin Klaus

Index Scriptorium Estoniae

Klaus, Karin

2010-01-01

Pärnu Vene Gümnaasium ja Antwerpeni Leonardo Lyceum Belgiast osalevad Comeniuse projektis "Legends Connecting Past and Present, East and West". Etendatakse legende ja muistendeid ning õpitakse eesti ja flaami keelt

Mona Lisa kuulsa naeratuse saladus leidis lahenduse / Johannes Saar

Index Scriptorium Estoniae

Saar, Johannes, 1965-

2004-01-01

Firenze kunstiajalooõpetaja Giuseppe Pallanti jõudis 25-aastase arhiivitöö tulemusena järeldusele, et Leonardo da Vinci Mona Lisa modelliks on siidikaupmehe Francesco del Giocondo abikaasa Lisa Gerardini

Viral pathogenesis in diagrams

National Research Council Canada - National Science Library

Tremblay, Michel; Berthiaume, Laurent; Ackermann, Hans-Wolfgang

2001-01-01

.... The 268 diagrams in Viral Pathogenesis in Diagrams were selected from over 800 diagrams of English and French virological literature, including one derived from a famous drawing by Leonardo da Vinci...

Ekstsentrikuroll tegi DiCaprio täiskasvanuks / Triin Thalheim

Index Scriptorium Estoniae

Thalheim, Triin, 1982-

2005-01-01

Leonardo DiCaprio sai parima meesnäitleja Kuldgloobuse Howard Hughesi rolli eest filmis "Aviaator - valguses ja varjus" ("The Aviator") : režissöör Martin Scorsese. Lisatud Kuldgloobuse laureaatide nimistu

Matrjoshku zavernjom v oblozhku / Jekaterina Rodina

Index Scriptorium Estoniae

Rodina, Jekaterina

2005-01-01

Tallinna iseloomustava suveniiri leidmiseks korraldatud konkursist. Esikoha võitis nahakunstnike Alain ja Evgenija Auna nahkkaantega raeraamat. Teise koha sai disainer Leonardo Meigase Pühavaimu kiriku kella miniatuurne koopia. Kirjeldatud teisi tunnustatud suveniire

Rodstvennik Monõ Lizõ / Bianca Kantino

Index Scriptorium Estoniae

Kantino, Bianca

2004-01-01

Uurijad on kindlaks teinud Leonardo da Vinci maalil "Gioconda" poseerinud naise isiku, kelleks oli Francesco del Gioconda naine Mona Lisa (1479-1528) ja leidnud naise otsese järeltulija - 51 aastase arhitekti

Giorgione "Magav Venus" : inimene ja pildiruum / Linnar Priimägi

Index Scriptorium Estoniae

Priimägi, Linnar, 1954-

2001-01-01

Giorgione'i maali "Magav Veenus" (1508/10) analüüs, mõjud ja seosed hilisemate Venustega kunstiajaloos ; Leonardo da Vinci "Mona Lisa" (1503/06) pilgu lahtimõtestamine ; kurtisanikultuur ja selle kajastamine maalikunstis.

Howard Robard Hughes (1905-1976) / Jaan Ruus

Index Scriptorium Estoniae

Ruus, Jaan, 1938-2017

2005-01-01

Ameerika ärimees, kes teostas ennast jõuliselt lennunduses, produtsendina filmikunstis, on prototüübiks Martin Scorsese mängufilmi "Aviaator - valguses ja varjus" ("The Aviator") peategelasele, keda kehastab Leonardo DiCaprio

Hispaanlased tahtsid eesti noored endale päriseks jätta / Kadri Ratt

Index Scriptorium Estoniae

Ratt, Kadri

2007-01-01

Rakvere Kutsekeskkooli projekti "Uued oskused ja pädevused läbi õpirände kogemuse" raames ja Leonardo da Vinci kutseharidusprogrammi toetusel käisid Rakvere Kutsekeskkooli kokaeriala neli õpilast õppepraktikal Hispaanias

On the Marketing Strategies of Heritage in Chongzuo City

Institute of Scientific and Technical Information of China (English)

2015-01-01

Chongzuo city is in the southwest border of Guangxi Zhuang Autonomous Region.After ten years’ development,its tourism industry has been taking shape.However,the tourism market of Chongzuo still facessome problemslike being limited in long-distance domestic marketand immigration market.With considering Chongzuo’s geographical advantages as well as its abundant natural and cultural resources,this paperwill mainly focus on analyzing the tourism marketing strategies of Chongzuo and give certain feasible modes to enhance the development of heritage tourism in Chongzuo.

Virtual labs in Leonardo da Vinci

Directory of Open Access Journals (Sweden)

Stanislaw Nagy

2006-10-01

Full Text Available This paper discusses the problem of virtual lab capabilities in the e-learning. Using combination of web conferencing and "virtual labs" capabilities, a new quality distance learning teaching is now in preparation and will be included in the course teaching to produce interactive, online simulations for the natural gas engineering studies. The activities are designed to enhance the existing curriculum and to include online assessments. A special care is devoted to the security problem between a server and a client computer. Several examples of the virtual labs related to the PVT thermodynamics, fluid flow, the natural gas well-testing, and thev gas network flow are prepared and tested. A major challenge for the 'CELGAS' system is in managing the delicate balance between the student collaboration and the isolation. Students may be encouraged to collaborate and work with each other, simulating their exploration of the lab material.

Gregory et al., Afr J Tradit Complement Altern Med., (2017) 14 (1 ...

African Journals Online (AJOL)

Bruno Leonardo Mendonça Ribeiroa; Enoch Brandão de Souza Meira Júniora; Rodolfo Santos Rossia;. Alessandro ... Introduction. Gastrointestinal helminthiases are a major sanitary concern in sheep herds. ..... Rio de Janeiro. 10. FAO.

The Visible Humans | NIH MedlinePlus the Magazine

Science.gov (United States)

... in contrast to similar images drawn by Leonardo DaVinci around 1500. Photos By: Karl Hoehne, University Medical ... develop products like artificial limbs; or to create tools to help surgeons rehearse operations. They've even ...

Malta 10 000 õpilasega kutsekool / Kristi Tammik

Index Scriptorium Estoniae

Tammik, Kristi

2014-01-01

Tallinna ehituskooli kuus töötajat osalesid Leonardo Da Vinci projekti „Flexible Possibilities for Organizing” VET õpirände projektis, mille raames külastati Malta tehnoloogia-, teadus- ja kunstikolledžit (MCAST)

Prantsusmaal hoolekandeasutuste hindamist õppimas / Kaidi-Mari Liping

Index Scriptorium Estoniae

Liping, Kaidi-Mari

2008-01-01

12.-16. maini osales Võrumaa neljaliikmeline delegatsioon Prantsusmaal Agen'is toimunud koolitusel, mille eesmärk oli tutvustada hoolekandeasutustes osutatavate teenuste kvaliteedi hindamise metoodikat Valoris. Koolitus toimus EL Leonardo da Vinci programmi projekti Valoris TIQSS raames

Loodi töötervishoiu ja -ohutuse alase hariduse ja koolituse võrgustik Euroopas / Ulrike Bollmann

Index Scriptorium Estoniae

Bollmann, Ulrike

2006-01-01

1. oktoobril 2005. a. Hispaanias Bilboas algatatud Leonardo da Vinci projektist ENETOSH (European Network Education and Training in Occupational Safety and Health ehk Euroopa töötervishoiu ja -ohutuse alane hariduse ja koolituse võrgustik)

Investigation of trace elements in Guangxi ancient pottery by INAA

International Nuclear Information System (INIS)

Peng Zicheng; Sun Weidong; Huang Yunlan

1997-01-01

Guangxi Zhuang Nationality Autonomous Region is an original place for manufacture of ancient pottery in China since Zenpiyan site, dated 9240-10370 years ago, was excavated. Contents of trace elements La, Ce, Nd, Sm, Eu, Tb, Yb, Lu, U, Th, Sc, Ta, Ba, Cs, Rb, Sr and Zr in 44 pottery shards from Guangxi sites, dated from 1450 B.C. to 200 A.D., were determined by INAA and XRF. The provenances of the 44 samples are postulated by the analyses of geochemical parameters

Piezoelectric and Electrostrictive Materials for Transducer Applications. Volume 2.

Science.gov (United States)

1988-03-01

Dariington, J. Appi. Phys. 43, 4951 (1972).I 17Z. Ujina and J. Handerek, Acta Physica Polonica A53, 665 (1978). 18Z. Q. Zhuang, M. J. Haun, S. J...Solution System. Part V: Theoretical Calculations." J. Appi. Phys. (submritted). 5 A. M. Glazer, S. A. Mabud, and R. Clarke, Acta Cryst. B34, 1060 (1978...Clarke, Acta Cryst.. B34, 1060 (1978). 12A. Amrin. R. E. Newham, and L. E. Cross, J. Solid State Chemissry 37, 248 (198 1). 13 M. j. Haun, E

Development of polyclonal antibodies for the detection of ...

African Journals Online (AJOL)

Development of polyclonal antibodies for the detection of recombinant human erythropoietin. Collares Thaís Farias, Monte Leonardo Garcia, Campos Vinicius Farias, Seixas Fabiana Kömmiling, Collares Tiago Veiras, Dellagostin Odir, Hartleben Cláudia Pinho ...

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

Science.gov (United States)

Wilson Libr Bull, 1970

1970-01-01

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

Ajamasina müra saatel / Tõnu Kaalep

Index Scriptorium Estoniae

Kaalep, Tõnu, 1966-

2000-01-01

Ajahetke tähistavast arhitektuurist, monumendist: Millennium Dome'ist Londonis (arhitekt Richard Rogers), Leonardo Meigase Vabaduse väljaku valgusinstallatsioonist. Oma ajast väljas olevast arhitektuurist: Kristiine keskusest, Ilmarise elamukvartalist. Puitlinna taastamisest sajandialguse kujul Kalamajas. 15 illustratsiooni

Päästa enda sisemine hunt valla! / Tanel Veenre

Index Scriptorium Estoniae

Veenre, Tanel, 1977-

2009-01-01

Ameerika 2008.a. mängufilmist "Mässajate tänav" ("Revolutionary Road"), stsenarist Richard Yates'i samanimelise raamatu järgi Justin Haythe, režissöör Sam Mendes, peaosades Kate Winslet, Leonardo DiCaprio

Comprehensive geological report on Yu Hsien mining area, Yu Hsien coalfield, Hopeh Province in the People's Republic of China

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

This is a detailed geological survey report on Yu Hsien coalfield for the period beginning in 1987 and ending in March, 2001. The survey elucidated the structures, beds, coal seams, coal property, hydro-geological features, and other mining technological conditions in Beiyang Zhuang mining area. In addition, as a result of coal reserves calculation, the total of A, B and C class coal reserves was 328.34 million tons, of which No.1 and No.5 coal seams were 259.79 million tons, taking 79.1% of the entire reserves. The average coal seam thickness of the No.1 and No.5 coal seams, which are the principal minable coal seams, are each 3.10 m and 2.66 m, with the existing depth usually 300-711 m; the coal properties are classified into low-medium ash, low sulfur, low phosphorus, and medium heating value. The coal category is long flame coal, with the use applicable to cement, electric power, gasification, etc. As the infrastructure, Beiyang Zhuang mining area is one of the three mines for which development has been decided in Yu Hsien coalfield. with the planned coal output scheduled for 1.8 million tons, and with a road or a dedicated railroad for coal maintained leading to large and medium cities such as Changkiakow, Suanhwa and Beijing. Further, railway construction is in progress, so that transportation conditions are extremely favorable. Preliminary investigation of industries and construction of coal pits should be considered. (NEDO)

Projekt "Baltenet - The Baltic Technology Network" / Leonid Pai

Index Scriptorium Estoniae

Pai, Leonid

2005-01-01

Baltenet - The Baltic Technology Network on projekt, mille alusel teevad koostööd tehniliste erialade koolituse arendamiseks Baltimere äärsetes riikides neli kutseõppeasutust Soomest, Rootsist, Lätis ja Eestist. Projekti rahastab Euroopa Liidu Leonardo da Vinci programm

Pictures of fear and horror / Aare Pilv

Index Scriptorium Estoniae

Pilv, Aare, 1976-

2009-01-01

Autor lapsena unes hirmu põhjustanud piltidest. Ants Laikmaa pastellmaalist "Marie Underi portree (1904), selle sarnasusest Edvard Munchi kujutatud naistega ("Angstgefühl", 1896). Jüri Arraku illustratsioonist "Vanapagan" lasteraamatule "Suur Tõll" (1982). Otsa vaatavatest portreedest (Leonardo da Vinci "Mona Lisa")

10. Temadag indenfor Koordinatmåling

DEFF Research Database (Denmark)

Larsen, Erik; De Chiffre, Leonardo

2004-01-01

Temadag om Optisk koordinatmåling, 3D digitalisering og Reverse Engineering Conference on Optical Coordinate Metrology, 3D Digitisation and Reverse Engineering Konferencemappe Oktober 2004 Editorer: Leonardo De Chiffre & Erik Larsen Institut for Produktion og Ledelse Danmarks Tekniske Universitet...

Unistuste ravi kontrollitud / Andris Feldmanis

Index Scriptorium Estoniae

Feldmanis, Andris, 1982-

2009-01-01

Ameerika 2008.a. mängufilmist "Mässajate tänav" ("Revolutionary Road"), stsenarist Richard Yates'i samanimelise raamatu järgi Justin Haythe, režissöör Sam Mendes, operaator Roger Deakins, peaosades Kate Winslet, Leonardo DiCaprio

Eestlanna püüab murda da Vinci koodi / Sash Uusjärv

Index Scriptorium Estoniae

Uusjärv, Sash

2010-01-01

Kadrioru Kunstimuuseumis eksponeeri 5.-12. veebruarini 2010. a. Leonardo da Vinci arvatavat autoportreed. Portree leiti 2008. aastal ühest Lõuna-Itaalia erakogust ja graafiline disainer Helen Kokk valmistas maali järgi arvutimudeli. Disainer Helen Kokka mõtteid tööprotsessitst

Tallinna suveniirivõistluse esikoha noppis nahast raamat / Piret Peensoo

Index Scriptorium Estoniae

Peensoo, Piret

2005-01-01

Tallinna iseloomustava suveniiri leidmiseks korraldatud konkursist. Esikoha võitis nahakunstnike Alain ja Evgenya Auna nahkkaantega raeraamat vildist vutlaris. Teise koha sai disainer Leonardo Meigase Pühavaimu kiriku kella numbrilaua kujutisega kell. Teisi paremaid suveniiriloojaid. Tunnustatud suveniiride näitus juulis Tallinna turismiinfopunktis

Airborne aerospace; interview with business development manager space

NARCIS (Netherlands)

Woldendorp, S.; Nevinskala, A.; Gupta, S.

2013-01-01

Airborne Composites designs and manufactures composite parts for the Aerospace, Oil & Gas, Marine and other industries since 1995. They are involved in notable hightech projects, from the Galileo Satellites, to the Gulfstream aircraft for Fokker and the ALMA astronomical telescope. The Leonardo

[Distance learning using internet in the field of bioengineering].

Science.gov (United States)

Ciobanu, O

2003-01-01

The Leonardo da Vinci training programme supports innovative transnational initiatives for promoting the knowledge, aptitudes and skills necessary for successful integration into working life. Biomedical engineering is an emerging interdisciplinary field that contributes to understand, define and solve problems in biomedical technology within industrial and health service contexts. Paper presents a Leonardo da Vinci pilot-project called Web-based learning and training in the field of biomedical and design engineering (WEBD). This project has started on 2001. The WEBD project proposes to use advanced learning technologies to provide education in the www. Project uses interactive 3D graphics and virtual reality tools. The WEBD distance training permits users to experience and interact with a life-like model or environment, in safety and at convenient times, while providing a degree of control over the simulation that is usually not possible in the real-life situation.

Explorers with a Mission.

Science.gov (United States)

Sweeney, Patricia James

1991-01-01

Offers brief summaries of contributions made by several of Christopher Columbus's contemporaries, including Nicholas Cusa, Leonardo da Vinci, Michelangelo Buonarroti, Nicholas Copernicus, Johannes Gutenberg, Sir Thomas More, Desiderius Erasmus, and John Colet. Urges modern Catholic educators to learn from these risk takers and visionaries. (DMM)

"Titanic" : kümme aastat hiljem / Jaanus Noormets

Index Scriptorium Estoniae

Noormets, Jaanus

2008-01-01

Ameerika suurfilmi "Titanic" (1997) saamis- ja eduloost. Rubriik "Mis on neist saanud?" annab teada, kuidas film mõjutas tegijate (režissöör James Cameron, näitlejad Kate Winslet ja Leonardo DiCaprio, laulja Celine Dion) edasist karjääri

Püha õhtu seltskonnalaud / Kaire Nurk

Index Scriptorium Estoniae

Nurk, Kaire, 1960-

2005-01-01

Püha õhtusöömaaja teemast kunstis. Saksa kunstiajaloolase Horst Schwebeli poolt Leonardo da Vinci "Püha õhtusöömaaja" XX sajandi "töötlustes" välja toodud poliitilise agitatsiooni ja ühisest probleemist haaratud seltskonna kujutiste suunast. Laua kujutisest kunstis

Racial Arrested Development: A Critical Whiteness Analysis of the Campus Ecology

Science.gov (United States)

Cabrera, Nolan L.; Watson, Jesse S.; Franklin, Jeremy D.

2016-01-01

This paper analyzes the campus ecology (Renn, 2003, 2004) literature from the perspective of Critical Whiteness specifically problematizing perceptions of safety and inclusion on the college campus. Relying upon Sullivan's (2006) ontological expansiveness, Mills's (1997) epistemology of ignorance, and Leonardo and Porter's (2010) Fanonian…

Bioactivity of mangrove humic materials on Rizophora mangle and ...

African Journals Online (AJOL)

Bioactivity of mangrove humic materials on Rizophora mangle and Laguncularia racemosa seedlings, Brazil. Leonardo Barros Dobbss, André Luiz Paier Barroso, Alessandro Coutinho Ramos, Karla Stéphanie Nunes Torrico, Fabíola Schunk de Souza Arçari, Daniel Basílio Zandonadi ...

Broadening industry perspectives of vehicle telematics application through virtual learning environments

NARCIS (Netherlands)

Bull, K.; Hull, N.; Peck, D.P.

2009-01-01

EADIS is a two year international initiative funded by Leonardo Da Vinci UK. It involves five European design-related educational institutions who have developed a Vehicle Telematics Road Map. The map acts as the basis for an internationally available online training programme that shares knowledge

Leonardo de Vinci, el pregonero del porvenir

Directory of Open Access Journals (Sweden)

Ernesto Cortés Ahumada

1960-04-01

Full Text Available Marcha de frailes, de chantres, de gonfalonieros, de miembros del Consejo de los Ochenta, de canónigos, de doctores y maestros de teología, de caballeros del capitán Bargello, de trompeteros y maceros. ¡Arre, arre! Adentro: las mandolinas, los tableros de ajedrez, los cuadros excitantes, los dibujos que parecen estallar en aromas y en contactos inefables, las mujeres livianas, los bustos de los dioses paganos, de los héroes , de los filósofos, esculpidos en madera y arcilla.

Tourism. Leonardo da Vinci Series: Good Practices.

Science.gov (United States)

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

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

Compatibility between weak gel and microorganisms in weak gel-assisted microbial enhanced oil recovery.

Science.gov (United States)

Qi, Yi-Bin; Zheng, Cheng-Gang; Lv, Cheng-Yuan; Lun, Zeng-Min; Ma, Tao

2018-03-20

To investigate weak gel-assisted microbial flooding in Block Wang Long Zhuang in the Jiangsu Oilfield, the compatibility of weak gel and microbe was evaluated using laboratory experiments. Bacillus sp. W5 was isolated from the formation water in Block Wang Long Zhuang. The rate of oil degradation reached 178 mg/day, and the rate of viscosity reduction reached 75.3%. Strain W5 could produce lipopeptide with a yield of 1254 mg/L. Emulsified crude oil was dispersed in the microbial degradation system, and the average diameter of the emulsified oil particles was 18.54 μm. Bacillus sp. W5 did not affect the rheological properties of the weak gel, and the presence of the weak gel did not significantly affect bacterial reproduction (as indicated by an unchanged microbial biomass), emulsification (surface tension is 35.56 mN/m and average oil particles size is 21.38 μm), oil degradation (162 mg/day) and oil viscosity reduction (72.7%). Core-flooding experiments indicated oil recovery of 23.6% when both weak gel and Bacillus sp. W5 were injected into the system, 14.76% when only the weak gel was injected, and 9.78% with strain W5 was injected without the weak gel. The results demonstrate good compatibility between strains W5 and the weak gel and highlight the application potential of weak gel-assisted microbial flooding. Copyright © 2018 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

Unveiling the Gap

DEFF Research Database (Denmark)

Jensson, Pall; Rokkjær, Ole; Nørgaard, Bente

by the EU Leonardo da Vinci Partnership program. The project had two objectives. The first objective was to use the European Qualification Framework (EQF) as a benchmark against the National Qualification Framework (NQF) of the partner countries and the IE educations offered by the partner institutions...

Le tecnologie di rilievo marino e costiero

Directory of Open Access Journals (Sweden)

Redazione mediaGEO

2015-03-01

Full Text Available In a quiet location on the banks of the Tiber River, not far from the airport "Leonardo Da Vinci" of Rome, on October 9 and 10, was held a workshop entitled "The marine and coastal survey technologies" organized by Codevintec.

Fra Bartolommeo

DEFF Research Database (Denmark)

Elen, Albert J.; Fischer, Chris

In Museum Boijmans Van Beuningen, discover the masterpieces of Fra Bartolommeo (1473-1517), the Italian monk and artist from the famous monastery of San Marco in Florence. He, Leonardo da Vinci, Raphael and Michelangelo were the four most important artists of the High Renaissance. Paintings by Fra...

Artsmarts.

Science.gov (United States)

Greenman, Geri

2000-01-01

Provides information on Leonardo da Vinci, Michelangelo, and Honore Daumier's "Rue Transonian." Describes an art activity in which students in an advanced drawing class reproduce a famous drawing in the same medium as the original, make the composition contemporary, and include themselves in the composition. (CMK)

Erakordne aeg või valed mudelid? / Erik Aru

Index Scriptorium Estoniae

Aru, Erik

2008-01-01

Paul De Grauwe, Leonardo Iania ja Pablo Rovira Kaltwasser arvutasid välja börsidel erakordsemate päevade esinemise tõenäosuse. Nende järelduse kohaselt ei ole mitte praegune aeg erakordne, vaid finantsmudelid on valed. Lisa: Indeks Dow Jones Industrial Average oktoobrikuus

Study of development paths of dairy farmers in Slovenia

NARCIS (Netherlands)

Klopcic, M.; Verhees, F.J.H.M.; Kuipers, A.; Koops, W.J.

2014-01-01

As part of the Central and Eastern European project of Wageningen UR (Wageningen, the Netherlands) combined with a Leonardo da Vinci project coordinated by Warsaw University of Life Sciences (Warsaw, Poland), an analysis was performed in year 2012 of future development paths of dairy farmers in

Предлогаемый автопортрет итальянского художника Леонардо да Винчи экспонируется в Кадриорге

Index Scriptorium Estoniae

2010-01-01

Kadrioru Kunstimuuseumis eksponeeritakse 5.-12. veebruarini Leonardo da Vinci arvatavat autoportreed. Koos portreemaaliga näidatakse Eesti ja Itaalia spetsialistide koostöös valminud portreeskulptuuri ja 3D arvutimudelit. Samal teemal Jelena Jeliferova repliik "Код да Винчи" lk. 8

Sajandilõpu jumalad Düsseldorfis

Index Scriptorium Estoniae

1999-01-01

Düsseldorfi Kunsthalles 27. okt.-ni näitus 'Taevas' sajandilõpu iidolitest. Eksponeeritud fotod naisatleetvõimlejatest ja supermodellidest, Thierry Mugleri rõivakollektsioon, Orlani kosmeetilisi näooperatsioone jäädvustavad fotod, Jeff Koonsi klaasist Michael Jacksoni portree, Olga Tobrelutsu maal Leonardo DiCapriost jm.

Evaluación del efecto de una técnica de relajación autógena sobre la actividad cardiovascular y muscular durante la vigilia y el sueño de pacientes con secuelas de esguince cervical /

OpenAIRE

Mateos Salgado, Erik Leonardo

2011-01-01

 tesis que para obtener el grado de Doctor en Psicología, presenta Erik Leonardo Mateos Salgado ; asesor Benjamín Domínguez Trejo. 123 páginas : diagramas. Doctorado en Psicología UNAM, Facultad de Psicología, 2011

Handbook of the eurolaser academy

CERN Document Server

1998-01-01

The European Community regards training as a priority area and has therefore developed a series of programmes in the field of vocational training. This book is the result of a pilot project selected under two of these Community Action Programmes. It was initially selected under the COMETT programme, concerned with the development of continuing vocational training in the European Community. Moreover, it was one of the few selected projects to receive further funding under a second selection in the context of the LEONARDO DA VINCI Action Programme for the implementation of a European Community Vocational Training policy. It is with great pleasure that I present the outcome of this project which embodies one of the fundamental objectives of the LEONARDO DA VINCI Programme -training for new technologies in SMEs, which make a significant contribution to economic development in Europe. K DRAXLER Director Directorate General XXII European Commission x Acknowledgements The Volume Editor gratefully acknowledges fundin...

Clustering Analysis of Common Tasks Undertaken by Engineering Technicians in Informatics and Manufacturing in Seven European Countries

Science.gov (United States)

Papadourakis, George M.; Natsika, Christina; Magnan, Myrna; Barsics, Joseph

2008-01-01

VALEURTECH is a pilot project under the European Commission's Leonardo II programme. It includes 35 partners from higher education institutions and professional organizations in eight European countries and has the major objectives: of (a) setting up a homogeneous "labelling" process, such as a diploma supplement, based on a common…

African Journal of Biotechnology - Vol 12, No 5 (2013)

African Journals Online (AJOL)

Fruit maturation and in vitro germination of macaw palm embryos · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Priscila Oliveira Silva, Leonardo Monteiro Ribeiro, Maria Olívia Mercadante Simões, Paulo Sérgio Nascimento Lopes, Teddy Marques Farias, Queila ...

Fruit production and quality of guava 'Paluma' as a function of humic ...

African Journals Online (AJOL)

Fruit production and quality of guava 'Paluma' as a function of humic substances and soil mulching. Leonardo Fonseca da Rocha, Lourival Ferreira Cavalcante, Járisson Cavalcante Nunes, Antônio Gustavo de Luna Souto, Alian Cássio Pereira Cavalcante, Ítalo Herbert Lucena Cavalcante, Walter Esfrain Pereira ...

To Mars and beyond; interview with Dr. Firouz Naderi, the director solar system exploration at NASA JPL

NARCIS (Netherlands)

Fattahyani, A.

2013-01-01

NASA’s Jet Propulsion Laboratory (JPL) is the leader of the planetary missions. Located in Pasadena, California, this laboratory is responsible for the operation of NASA’s planetary spacecraft and its deep space network. The Leonardo Times was able to have an interview with Dr. Firouz Naderi, who is

Teaching and learning spinal anaesthesia: anaesthetists' attitudes.

LENUS (Irish Health Repository)

Breen, Dorothy

2010-12-01

To identify the determinants of learning for one medical procedural skill, spinal anaesthesia, by eliciting the opinions of anaesthetists in Ireland and Hungary. This objective is one component of a research project, Medical Competence Assessment Procedure (MedCAP) funded by the EU Leonardo da Vinci Lifelong Learning Programme.

As praças dr. Augusto Silva e Leonardo Venerando Pereira, 1701 Lavras - MG, segundo a visão dos seus freqüentadores The park dr. Augusto Silva, Lavras - MG, according to viewpoint of its users

Directory of Open Access Journals (Sweden)

Alessandra Teixeira da Silva

2008-12-01

Full Text Available As praças públicas, além de contribuírem para o embelezamento das cidades, também desempenham uma função importante no contexto urbanístico ambiental. A Praça Dr. Augusto Silva, situada no município de Lavras, MG, também já foi chamada de Largo da Matriz, Praça Central e Jardim Municipal, que foi inaugurado oficialmente em 29 de novembro de 1908, quando passou a ter o nome de um ilustre médico lavrense. A praça Dr. Augusto Silva, possui atualmente, área de 7.552,65 m² e apresenta como prolongamento a praça Leonardo Venerando Pereira, com área atual de 2.041,72 m². Até 1940, esse prolongamento era denominado de Praça da Bandeira. Constatou-se, que desde o início da década de 1910, o local foi palco de grandes celebrações e encontros políticos e também foi muito freqüentado pela população. A Praça possui rica vegetação, onde se destacam uma centenária Tipuana (Tipuana tipu, diversos ipês (Tabebuia spp., palmeiras-imperiais (Roystonea oleracea. Objetivando-se avaliar a situação atual e usos, foi realizada uma avaliação, mediante análise quantitativa e pesquisa junto à população. Foram feitas uma série de avaliações referentes aos seguintes itens: aspectos urbanísticos, físicos e a vegetação. A pesquisa de opinião foi aplicada a aproximadamente 600 usuários, na própria praça, em dias da semana e horários diferentes, por meio de um questionário com perguntas diretas ao próprio entrevistado. Os dados coletados foram analisados estatisticamente utilizando o Software SPSS, de onde foram obtidas as freqüências porcentuais. A maior parte dos entrevistados julga a praça como um ponto de encontro entre amigos, onde contemplam a sua beleza e descansam. Por meio de pesquisa de opinião realizada com os usuários da praça, pôde-se identificar que se trata de um local muito freqüentado por várias faixas etárias, em diferentes períodos do dia. A praça Dr. Augusto Silva mostra-se de grande import

Bringing Climate Change into the Life Science Classroom: Essentials, Impacts on Life, and Addressing Misconceptions

Science.gov (United States)

Hawkins, Amy J.; Stark, Louisa A.

2016-01-01

Climate change is at the forefront of our cultural conversation about science, influencing everything from presidential debates to Leonardo DiCaprio's 2016 Oscar acceptance speech. The topic is becoming increasingly socially and scientifically relevant but is no closer to being resolved. Most high school students take a life science course but…

Kunst og Filosofi i det 20. Århundrede

DEFF Research Database (Denmark)

Indhold: Dan Zahavi: Edmund Husserl : fænomenologi og kunst. Kasper Nefer Olsen: Croce : en hegelianer uden sorger ; Wittgenstein : det æstetiske er nu. Carsten Juhl: Paul Valérys introduktion til Leonardo da Vincis metode. Peer F. Bundgård: Den formelle frigørelse : om Ernst Cassirers bestemmelse...

Conrad Gessner-Kongress, Zürich, 6.-9. Juni 2016

Directory of Open Access Journals (Sweden)

Urs Leu

2016-11-01

Full Text Available To mark the 500th birthday of Conrad Gessner, the Leonardo da Vinci of Switzerland, an international congress was organized by the University and the Zentralbibliothek Zurich, which attracted many researchers to Zurich. Nearly 50 presentations illuminated work, life and contemporaries of the famous Zurich polymath and naturalist.

Southeast Asia Report

Science.gov (United States)

1985-09-19

ments, including drama sketches and ä daily update of one of the prisoners, were confiscated from Sotero Huinda, Judith Pagunsan and Alicia Bade...the bodies of the Diaz brothers, Leonardo, 32, and Roland 28 were found June 28 in the corner of Torres and Lapulapu Sts one day after they were

Reflection by Porro Prisms

Science.gov (United States)

Greenslade, Thomas B.

2010-04-01

Students all know that reflection from a plane mirror produces an image that is reversed right to left and so cannot be read by anyone but Leonardo da Vinci, who kept his notes in mirror writing. A useful counter-example is the Porro prism, which produces an image that is not reversed.

Critical race theory and the question of safety in dialogues on race ...

African Journals Online (AJOL)

On this foundation, the article moves on to consider the recommendations adduced by Leonardo and Porter (2010:147) and Sue (2013:666-669) as to how dialogues around race and racism can be enhanced. The article begins by contextualising its argument, followed by an overview of the guiding principles of CRT, ...

Association of the stramenopilan protists, the aplanochytrids, with zooplankton of the equatorial Indian Ocean

Digital Repository Service at National Institute of Oceanography (India)

Damare, V.; Raghukumar, S.

, Gaxiola-Cortés MG, Simoes N (eds) Avances en Nutrición Acuícola VI. Memorias del VI Simposium Internacional de Nutrición Acuícola. 3 al 6 de Septiembre del 2002. Cancún, Quintana Roo, México, p 281-292. • Bussolati G, Leonardo E (2008) Technical...

Antinociceptive Properties and Acute Toxicity of Ethanol Extract of ...

African Journals Online (AJOL)

Sarah RG de Lima-Saraiva1, Henrique CC Saraiva2, Juliane C Silva2, Leonardo ... 56.304-205, Petrolina, Pernambuco, 3Universidade Estadual de Feira de ..... Santos VNC, Freitas RA, Deschamps FC, Biavatti, MW. ... Queiroz AC, Lira DP, Dias TL, Souza ET, Matta CB, ... Alexandre-Moreira MS, Piuvezam MR, Araújo CC,.

Kutsenõustamine ja -suunitlus kultuurierinevuste värvikülluses / Epp Vodja

Index Scriptorium Estoniae

Vodja, Epp

2001-01-01

Eesti Õppe- ja Praktikateabe Keskus ja Junior Achievementì Arengufond osalesid partneritena Euroopa kutseharidust toetava programmi Leonardo da Vinci pilootprojektis "Towards a European Rainbow - Increasing the Intercultural Awareness Among Guidance Counsellors" (Euroopa vikerkaare suunas - kultuuridevahelise üksteisemõistmise täiustamine kutsesuunitlejate ja -nõustajate seas) ehk lühidalt Rainbow-projektis

78 FR 66012 - National Vaccine Injury Compensation Program; List of Petitions Received

Science.gov (United States)

2013-11-04

... Island; Court of Federal Claims No: 13-0632V 2. Kimberly Carter on behalf of Josselyn Kish; Henderson...; Whitesville, West Virginia; Court of Federal Claims No: 13-0641V 9. Barry S. Dezern, North Wilkesboro, North... Leonardo Munoz, Bowie, Maryland, Court of Federal Claims No: 13-0752V 88. Linda Vanslyke, Vienna, Virginia...

[Analysis of COX1 sequences of Taenia isolates from four areas of Guangxi].

Science.gov (United States)

Yang, Yi-Chao; Ou-Yang, Yi; Su, Ai-Rong; Wan, Xiao-Ling; Li, Shu-Lin

2012-06-01

To analyze the COX1 sequences of Taenia isolates from four areas of Guangxi Zhuang Autonomous Region, and to understand the distribution of Taenia asiatica in Guangxi. Patients with taeniasis in Luzhai, Rongshui, Tiandong and Sanjiang in Guangxi were treated by deworming, and the Taenia isolates were collected. Cyclooxygenase-1 (COX1) sequences of these isolates were amplified by PCR, and the PCR products were sequenced by T-A clone sequencing. The homogeneities and genetic distances were calculated and analyzed, and the phylogenic trees were constructed by some softwares. Meanwhile, the COX1 sequences of the isolates from the 4 areas were compared separately with the sequences of Taenia species in GenBank. The COX1 sequence of the 5 Taenia isolates collected had the same length of 444 bp. There were 5 variable positions between the Luzhai isolate and Taenia asiatica, the homogeneity was 98.87% and their genetic distance was 0.011. The phylogenetic tree analysis revealed that the Luzhai isolate and Taenia asiatica locating at the same node had a close relationship. The homogeneity between Rongshui isolate A and Taenia solium was 100%, while the homogeneity of Rongshui isolate B with Taeniasis saginata and Taenia asiatica were 98.20% and 96.17%, respectively. The homogeneities of the Tiandong and Sanjiang isolates with Taenia solium were 99.55% and 96.40%, respectively, and the genetic distances were 0.005 and 0.037, respectively. The homogeneity between the Luzhai isolate and Taeniasis saginate was 96.40%. Taenia asiatica exists in Luzhai and Taenia solium and Taenia saginata coexist in Rongshui, Guangxi Zhuang Autonomous Region.

The quarter-power scaling model does not imply size-invariant hydraulic resistance in plants

Science.gov (United States)

Annikki Makela; Harry T. Valentine

2006-01-01

West, Brown, and Enquist (1997, 1999) propose an integrated model of the structure and allometry of plant vascular systems, which has come to be known as the 'WBE model' (Enquist, 2002). The WBE model weaves together area-preserving branching (Leonardo da Vinci), elastic similarity (Greenhill, 1881), the constant ratio of foliage mass to sapwood area (...

On shape stability of panel paintings exposed to humidity variations. Part 2: shape stability of sown wood

NARCIS (Netherlands)

Reijnen, S.; Jorissen, A.J.M.

2013-01-01

A panel painting is a painting made on a wooden panel. It is not well known, but a lot of famous paintings are actually panel paintings, such as The Mona Lisa by Leonardo Da Vinci, Assunta by Titian, Primavera by Botticelli and Samson and Delilah by Rubens. Artists had clear reasons to choose wood

A novel image encryption scheme based on Kepler’s third law and random Hadamard transform

Science.gov (United States)

Luo, Yu-Ling; Zhou, Rong-Long; Liu, Jun-Xiu; Qiu, Sen-Hui; Cao, Yi

2017-12-01

Not Available Project supported by the National Natural Science Foundation of China (Grant Nos. 61661008 and 61603104), the Natural Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant Nos. 2015GXNSFBA139256 and 2016GXNSFCA380017), the Funding of Overseas 100 Talents Program of Guangxi Provincial Higher Education, China, the Research Project of Guangxi University of China (Grant No. KY2016YB059), the Guangxi Key Laboratory of Multi-source Information Mining & Security, China (Grant No. MIMS15-07), the Doctoral Research Foundation of Guangxi Normal University, the Guangxi Provincial Experiment Center of Information Science, and the Innovation Project of Guangxi Graduate Education (Grant No. YCSZ2017055).

Unity connecting module moving to new site in SSPF

Science.gov (United States)

1998-01-01

In the Space Station Processing Facility (SSPF), Unity (top) is suspended in air as it is moved to a new location (bottom left)in the SSPF. To its left is Leonardo, the Italian-built Multi- Purpose Logistics Module to be launched on STS-100. Above Leonardo, visitors watch through a viewing window, part of the visitors tour at the Center. As the primary payload on mission STS-88, scheduled to launch Dec. 3, 1998, Unity will be mated to the Russian-built Zarya control module which should already be in orbit at that time. In the SSPF, Unity is undergoing testing such as the Pad Demonstration Test to verify the compatibility of the module with the Space Shuttle, as well as the ability of the astronauts to send and receive commands to Unity from the flight deck of the orbiter, and the common berthing mechanism to which other space station elements will dock. Unity is expected to be ready for installation into the payload canister on Oct. 25, and transported to Launch Pad 39-A on Oct. 27.

Fibonacci - Protagonist or Witness?

DEFF Research Database (Denmark)

Høyrup, Jens

2014-01-01

Leonardo Fibonacci (ca. 1170 - after 1240) during his boyhood went to Bejaïa, learned about the Hindu-Arabic numerals there, and continued to collect information about their use during travels to the Arabic world. He then wrote the Liber abbaci, which with half a century’s delay inspired the crea......Leonardo Fibonacci (ca. 1170 - after 1240) during his boyhood went to Bejaïa, learned about the Hindu-Arabic numerals there, and continued to collect information about their use during travels to the Arabic world. He then wrote the Liber abbaci, which with half a century’s delay inspired......, of course, that Fibonacci learned about Arabic (and Byzantine) commercial arithmetic, and that he presented it in his book. He is thus a witness (with a degree of reliability which has to be determined) of the commercial mathematics thriving in the commercially developed parts of the Mediterranean world...... with Arabic non-scholarly traditions, at least until ca. 1350 within an open space, apparently concentrated around the Iberian region....

Distance Learning. Leonardo da Vinci Series: Good Practices.

Science.gov (United States)

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

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

Spin the Wheels

Science.gov (United States)

Critchett, John

2011-01-01

The Fibonacci series has been studied since it was first described by Leonardo of Pisa--Fibonacci--in 1202. It begins with the sequence 1, 1, 2, 3, 5, 8... Each succeeding number is the sum of the previous two. In number theory courses, students are introduced to the concept of modulo arithmetic, sometimes called "clock" arithmetic. In modulo…

Nature Foil Reliefs

Science.gov (United States)

Lane, Shaw J.

2012-01-01

Nature has always been a source of inspiration for artists across the centuries. Artists such as Leonardo da Vinci, Georgia O'Keeffe, Ansel Adams, and Andy Goldsworthy all drew inspiration for their work from nature. Seeds come from the dried pods, which when planted and cared for, bear fruit. In this article, the author describes how her…

Reach for the Stars: Visions for Literacy Coaching Programs

Science.gov (United States)

DeFord, Diane

2012-01-01

This brief by the Literacy Coaching Clearinghouse is about reaching for the stars--stories of vision and commitment from educators in small and large schools. Everyone knows of people who are held up as "visionaries" throughout history: Leonardo Da Vinci, Mahatma Gandhi, Jules Verne, Thomas Edison, Susan Anthony, or John Dewey, to name a few. The…

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

Science.gov (United States)

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

This document launches a wide public consultation with all those involved in and with an interest in the European Union's (EU's) education, training, and youth programs called Socrates, Tempus, Leonardo da Vinci, and Youth for Europe. It is the first step toward preparing the new generation of programs to start in 2007 and will inform the…

The Prelude to the Millennium: The Backstory of Digital Aesthetics

Science.gov (United States)

Mayo, Sherry

2008-01-01

The artist and scientist have been depicted as polar opposites since Michelangelo claimed that Leonardo da Vinci was wasting time with foolish inventions while his art suffered. However, the artist taking on the role of the researcher has precedent. In the 1960s, Experiments in Art and Technology (E.A.T.), led by Bell Labs' engineer Billy Kluver,…

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

Science.gov (United States)

Besson, Ugo

2013-01-01

This paper presents a history of research and theories on sliding friction between solids. This history is divided into four phases: from Leonardo da Vinci to Coulomb and the establishment of classical laws of friction; the theories of lubrication and the Tomlinson's theory of friction (1850-1930); the theories of wear, the Bowden and Tabor's…

Prevalence of signs and symptoms suggestive of obstructive sleep apnea syndrome in Guangxi, China.

Science.gov (United States)

Liu, Jianhong; Wei, Caizhou; Huang, Luying; Wang, Wu; Liang, Dahua; Lei, Zhijian; Wang, Feng; Wang, Xiaoyuan; Hou, Xiujuan; Tang, Xiaojun

2014-05-01

The prevalence, profiles, and potential risk factors of snoring and obstructive sleep apnea-hypopnea syndrome (OSAHS) in China are largely unknown. This study aims to investigate the prevalence, profiles, and potential risk factors for snoring and OSAHS in Guangxi, China, and the association between OSAHS and ethnicity. Urban and rural population-based cluster samples were randomly selected in each of eight counties/cities. All residents aged 14 years or older in the selected clusters were interviewed using a standardized questionnaire. A subject was considered to have clinically diagnosed OSAHS if snoring was loud and habitual, breathing pauses were observed, and the subject experienced excessive daytime sleepiness. Among 12,742 sampled subjects, 10,819 completed the questionnaire (response rate = 84.9%). The overall OSAHS prevalence was 4.1% (men, 5.7% (5.1-6.3%); women, 2.4% (2.0-2.9%); Zhuang people, 3.2% (2.8-3.7%); Han people 6.0% (5.2-6.8%).The overall rate of habitual snoring was 11.5 % (men, 17.1% (16.1-18.1%); women, 5.6% (5.0-6.2%)). Univariate analysis showed that the OSAHS prevalence was significantly higher among the following groups: urban residents, elderly individuals, smokers, drinkers, those with higher body mass indexes (BMI), those with more years of schooling, those with nasal problems, those whose parents are Han, and those who usually sleep in prone position. However, multiple logistic regression analysis revealed that only urban residency, age, smoking status, drinking status, and BMI were the risk factors for OSAHS. OSAHS is prevalent in individuals aged 14 years or older in Guangxi, China. Han and Zhuang people differ significantly in their obstructive sleep apnea (OSA) prevalence, but this difference is explained by the combination of classic OSA risk factors.

R-ES-ONANCE--I-Ju-ne

Indian Academy of Sciences (India)

If you cut an apple the way most people cut an orange,2 the ~ore is seen to have the symmetry group D5". 2. Klein's Erlangen Programme. In 1872, at the University of Erlangen, Felix Klein de- livered a by-now very famous lecture, on a new way of looking at geometry; it has now become known as the. Leonardo da Vinci,.

Candido: Uma Leitura Paródica de Candide

Directory of Open Access Journals (Sweden)

Maria Gloria Cusumano Mazzi

2010-12-01

Full Text Available O presente artigo estuda a leitura paródica que Leonardo Sciascia (1921-1989 faz de Voltaire (1694-1778 mediante o cotejo das obras: o hipertexto Candido ovvero Un sogno fatto in Sicilia (1977 e o hipotexto Candide ou l’optimisme (1759. Apresenta ainda outra possibilidade de leitura, ou seja, Candido como metáfora da própria intertextualidade.

Nuevas noticias sobre la ruina y reconstrucción de la iglesia del Real Convento de San Pablo de Sevilla, según un manuscrito inédito de 1692-1708 (New information about ruin and reconstruction of the church of the Royal Convent of San Pablo in Seville

Directory of Open Access Journals (Sweden)

José Roda Peña

2016-01-01

Full Text Available Resumen: Estudio de las circunstancias en que se produjo la ruina de la antigua iglesia del convento dominico de San Pablo el Real de Sevilla en 1691, y de los comienzos de su inmediata reconstrucción en clave barroca por el arquitecto Leonardo de Figueroa (1654-1730, en base a las noticias inéditas aportadas por un manuscrito anónimo contemporáneo (1692-1708, conservado en el legado Montoto de la Biblioteca Universitaria de Sevilla, que también nos ilustra sobre ciertos aspectos devocionales y artísticos referidos a este desaparecido templo hispalense de la Orden de Predicadores.Abstract: Study of the circumstances in which there was the ruin of the old church of the dominican convent of San Pablo el Real of Sevilla in 1691, and of the beginnings of its immediate reconstruction in baroque language by the architect Leonardo de Figueroa (1654-1730, based on the unpublished news contributed by an anonymous contemporary manuscript (1692-1708, preserved in the Montoto legacy of the University Library in Seville, which also illustrates us about certain devotional and artistic aspects related to this disappeared sevillian temple of the Order of Preachers.

Wind-Induced Reconfigurations in Flexible Branched Trees

Science.gov (United States)

Ojo, Oluwafemi; Shoele, Kourosh

2017-11-01

Wind induced stresses are the major mechanical cause of failure in trees. We know that the branching mechanism has an important effect on the stress distribution and stability of a tree in the wind. Eloy in PRL 2011, showed that Leonardo da Vinci's original observation which states the total cross section of branches is conserved across branching nodes is the best configuration for resisting wind-induced fracture in rigid trees. However, prediction of the fracture risk and pattern of a tree is also a function of their reconfiguration capabilities and how they mitigate large wind-induced stresses. In this studies through developing an efficient numerical simulation of flexible branched trees, we explore the role of the tree flexibility on the optimal branching. Our results show that the probability of a tree breaking at any point depends on both the cross-section changes in the branching nodes and the level of tree flexibility. It is found that the branching mechanism based on Leonardo da Vinci's original observation leads to a uniform stress distribution over a wide range of flexibilities but the pattern changes for more flexible systems.

Fostering an entrepreneurial mindset in upper secondary school

Directory of Open Access Journals (Sweden)

Manuel Gentile

2014-08-01

In questo articolo si descrive il modello di formazione all’EE definito nell’ambito del progetto europeo “Posso ... Non Posso ... Vado! Rev. 2”, finanziato dal programma Leonardo da Vinci – Transfer of Innovation (TOI, ed è fornita una prima valutazione qualitativa dell’attività di sperimentazione condotta con gli studenti del 4° anno di un Istituto Tecnico per il Turismo di Palermo.

"Da Vinci kood" ja Eesti / Reet Rast

Index Scriptorium Estoniae

Rast, Reet, 1964-

2010-01-01

Möödunud kuu kunstisündmuseks oli "Da Vinci koodi avamine" Kadrioru Kunstimuuseumis ja Tallinna Ülikoolis. 5.-12. veebruarini eksponeeriti Kadrioru kunstimuuseumis Leonardo da Vinci arvatavat autoportreed. Lõuna-Itaalia erakogust leitud maali analüüsimisega tegelesid Tallinna Ülikooli maali ja maalitehnoloogia õppejõud Orest Kormašov, kes valmistas klassikalise portreeskulptuuri, arvutisimulatsiooni teostas Eesti Kunstiakadeemia graafilise disaini tudeng Helen Kokk

Rööviti Leonardo da Vinci maal / Rael Artel

Index Scriptorium Estoniae

Artel, Rael, 1980-

2003-01-01

"Madonna kedervarrega" ("Madonna with the Yarnwinder") varastati Drumlanringi lossist Kagu-Šotimaalt 27. augustil 2003. a. Eksperdid on Šoti aadlisuguvõsa valduses olnud maali väärtuseks hinnanud 25-50 miljonit naela

Leonardo da Vinci programmiga Euroopasse / Maie Üürike

Index Scriptorium Estoniae

Üürike, Maie

2009-01-01

Elukestva õppe allprogrammist, mis on suunatud kutsehariduse ja -koolituse edendamisele Euroopas. Vana-Vigala Tehnika- ja Teeninduskooli õpilased viibisid programmi raames erialasel praktikal Soomes

Risk analysis for earth dam overtopping

Directory of Open Access Journals (Sweden)

Mo Chongxun

2008-06-01

Full Text Available In this paper, a model of overtopping risk under the joint effects of floods and wind waves, which is based on risk analysis theory and takes into account the uncertainties of floods, wind waves, reservoir capacity and discharge capacity of the spillway, is proposed and applied to the Chengbihe Reservoir in Baise City in Guangxi Zhuang Autonomous Region. The simulated results indicate that the flood control limiting level can be raised by 0.40 m under the condition that the reservoir overtopping risk is controlled within a mean variance of 5×10−6. As a result, the reservoir storage will increase to 16 million m3 and electrical energy generation and other functions of the reservoir will also increase greatly.

Väike juveel Euroopa veere pääl / Thea Karin

Index Scriptorium Estoniae

Karin, Thea

2012-01-01

Küprose ajaloost, seal viibinud kuulsustest (Guido von Lusignan, Leonardo da Vinci, William Shakespeare, Lala Mustafa Paşa, Namik Kemal, Lawrence Durrell, Francis II Rakoczi) ning vaatamisväärsustest UNESCO pärandinimekirja kuuluvas Afroditele pühendatud Paphoses, pealinnas Nikosias, Girnes ja Famagustas, kus asuvad ka Shakespeare'i inspireerinud Othello torn ja Püha Nikolause katedraal, mis nüüd on Lala-Mustafa-Pasha mošee

The Economic Effects of Reduced Defense Spending

Science.gov (United States)

1992-02-01

Macroeconomics Annual 1987 (Cambridge, Mass.: MIT Press), pp. 263-315; and Leonardo Leiderman and Mario Blejer, " Modeling and Testing Ricardian ... model ), converting LIFT’s 78-sector forecasts of final demand by product to estimates for some 420 producing sectors. Unlike LIFT, DOM does not...24s in production in Fort Worth, Texas, during World War II. Photo is courtesy of Gen- eral Dynamics Corporation. Preface The past three years

A Questão Religiosa no Brasil

Directory of Open Access Journals (Sweden)

Leonardo Leonidas Brito

2017-09-01

Full Text Available Texto original do professor José Oiticica em resposta ao inquérito de Pinto Quartim. Publicado pelos organizadores Rogério Castro e Leonardo Brito, na ocasião do centenário (1916-2016 do ingresso de José Oiticica para o quadro de docentes do Colégio Pedro II. Submissão original para a Revista Espaço Acadêmico.

Annual Expeditionary Warfare Conference (22nd)

Science.gov (United States)

2017-10-24

Shipbuilding has what it takes to build the military ships that keep America and our allies safe. Leonardo DRS is a prime contractor , leading technology...innovator and supplier of integrated products, services and support to military forces, intelligence agencies and defense contractors worldwide. The...deployed with HMM- 264, HMM-365 and HMM-162. He has served as a Basic and Advanced Flight Instructor at Helicopter Training Squadron ( HT ) 18, NAS

Space Object Detection and Tracking Within a Finite Set Statistics Framework

Science.gov (United States)

2017-04-13

Engineering, Universidad de Chile Final Report 04/13/2017 DISTRIBUTION A: Distribution approved for public release. AF Office Of Scientific Research (AFOSR...Electrical Engineering, Universidad de Chile Av. Tupper 2007 Santiago, 8370451 CL 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING AGENCY NAME...Leonardo Cament, PhD.§ Department of Electrical Engineering , Universidad de Chile January 28, 2017 ∗Project PI, martin@ing.uchile.cl †ap360@hw.ac.uk

MENGENAL FOTOGRAFI DAN FOTOGRAFI DESAIN

Directory of Open Access Journals (Sweden)

Lesie Yuliadewi

1999-01-01

Full Text Available At present%2C photography technology has grown rapidly. It began from invention of obscura camera%2C which was invented by Leonardo da Vinci%2C until the invention of digital camera%2C which are produced by camera factories. Together with this development%2C the role of photography become expanded%2C that is to support the other sciences%2C like visual communication design. From this case%2C the term design photography often become the question to those who are involved in department visual communication design. The dicussion consist of two sections%2C they are basic photography and design photography. Abstract in Bahasa Indonesia : Saat ini teknologi fotografi telah berkembang pesat%2C mulai dari penemuan kamera obscura yang ditemukan oleh Leonardo da Vinci sampai penemuan kamera digital yang dikeluarkan oleh beberapa pabrik besar pembuat kamera. Seiring dengan hal itu peranan fotografi juga semakin luas%2C yaitu sebagai pendukung ilmu pengetahuan yang lain%2C seperti desain komunikasi visual. Dari sini timbullah istilah Fotografi Desain yang sering menjadi pertanyaaan di kalangan orang yang akan terlibat dalam jurusan Desain Komunikasi Visual. Pembahasan terdiri dari dua pokok bahasan%2C yaitu fotografi dasar dan fotografi desain.

Impact evaluation in multicultural educational projects : case: ADAPTYKES project

OpenAIRE

Kuusisto, Miika

2014-01-01

The objective of this thesis was to examine the common evaluation concepts of the European Union’s funded projects. Such concepts inter alia are effectiveness, impacts and sustainability. The aim was to study how these are realized in multicultural educational case–project in a context, where the project is funded by the European Commission’s Leonardo DaVinci Programme. Thesis introduces two evaluation approaches, which are Logical Framework Approach and Realistic evaluation model. The fi...

Evidence of Rickettsial and Leptospira Infections in Andean Northern Peru

Science.gov (United States)

2004-01-01

about health in six Latin American countries, 1973- 1992. Rev Panam Salud Publica 1: 23–34. 3. Cowan G, 2000. Rickettsial diseases: the typhus group of...Leonardo Mendoza Instituto Nacional de Salud , Capac Yupanqui No. 1400, Jesús Maria, Lima 11, Peru, Telephone: 51-1-471-9920. Allen L. Richards, Viral and...Colli C, 1997. Leptospira interrogans in a canine population of greater Bue- nos Aires: variables associated with seropositivity. Rev Panam Salud

Young Vitruvians

OpenAIRE

Pitta, Eduardo, 1949-

2017-01-01

This paper presents the results of artistic experiences in art classes held in a public school in Salvador/BA -- Brazil, based on the reinterpretation of "The Vitruvian Man" by Leonardo da Vinci and his possibility to influence the recognition and appreciation of cultural aspects students in the eighth year. Students painted human figures recreated from their body contouring with physical characteristics and human themselves or people connected to the neighborhood where they lived info:eu-...

Multimedia Discovery of the Leonardo’s Vitruvian Man

OpenAIRE

Malinverni, Eva Savina; D'Annibale, Enzo; Frontoni, Emanuele; Mancini, Adriano; Bozzi, Carlo Alberto

2015-01-01

The dissemination and exploitation of cultural heritage milestones by using multimedia and interactive technologies continuously and quickly grows capturing the attention of academia and companies. It is necessary to adopt the state of the art technologies to present and make bi-directional the interaction of users with cultural heritage objects. In this work, we present two different applications of novel technologies applied to the Vitruvian man of Leonardo. The first application is the mir...

Spinal cord injury and its association with blunt head trauma

OpenAIRE

Paiva, Wellingson S; Oliveira, Arthur MP; Andrade, Almir F; Amorim, Robson LO; Lourenço, Leonardo JO; Teixeira, Manoel J

2011-01-01

Wellingson S Paiva, Arthur MP Oliveira, Almir F Andrade, Robson LO Amorim, Leonardo JO Lourenço, Manoel J TeixeiraDivision of Neurosurgery, University of São Paulo, BrazilBackground: Severe and moderate head injury can cause misdiagnosis of a spinal cord injury, leading to devastating long-term consequences. The objective of this study is to identify risk factors involving spine trauma and moderate-to-severe brain injury.Methods: A prospective study involving 1617 patien...

MOSEP – More Self-Esteem With My E-Portfolio Development of a Train-the-Trainer Course for E-Portfolio Tutors

OpenAIRE

Buchberger , Gerlinde; Hilzensauer , Wolf; Hornung-Prähauser , Veronika

2007-01-01

This paper gives an insight into the MOSEP project, funded by the European Commission (Leonardo da Vinci Programme). The project focuses on the high dropout rates amongst young students (14-16) in the transition phase from middle to upper secondary school or into first vocational education. MOSEP addresses this problem by proposing to introduce the method of electronic learning and development portfolios (e-portfolios) specifically designed for effectively teaching and consulting this difficu...

Koncepcja automatyzacji Leonarda Torresa y Quevedo jako przyczynek do rozwoju computer science

Directory of Open Access Journals (Sweden)

Piotr Urbańczyk

2015-09-01

Full Text Available The aim of this article is to indicate that the ideas of Leonardo Torres y Que­vedo presented in his short Essays on Automatics constitute essential link between early Babbage’s concepts of analytical engine and modern computer science. These ideas include definition of automatics, classification of automata, theoretical basis for robotics, electromechanical engineering, modern concept of chatbot, the importance of algorithm and last but not least floating point arithmetic.

Legislation would establish commission to assess marine and coastal resources and develop national ocean policy

Science.gov (United States)

Showstack, Randy

During 1998, internationally designated as the year of the ocean, perhaps more people are paying heed to the deep seas now than ever before.Transfixed to the big screen by this year's movie blockbuster, they anticipate when the Titanic will scrape into the iceberg and break apart, shiver when household-name heartthrobs Leonardo DiCaprio and Kate Winslet float on the freezing waters, and hum along to the theme sung by Celine Dion.

a Study of Electrical Structures of Shanchiao Fault in Taiwan Using Audio-Frequency Magnetotelluric (amt) Method

Science.gov (United States)

Yang, C.; Liu, H.

2007-12-01

The Shanchiao normal fault is located in the western edge of Taipei basin in an N-E to S-W direction. Since the fault crosses through the Tertiary basement of Taipei basin, it is classified as an active fault. The overburden of the fault is sediments with a thickness around few tenth meters to several hundred meters. No detailed studies related to the Shanchiao fault in the western side of Taipei Basin are reported. In addition, there are no outcrops which have been found on the surface. This part of fault seems to be a potential source of disaster for the development of western Taipei basin. The audio-frequency magnetotelluric (AMT) method is a technique used to find the vertical resistivity distribution of formation and to characterize a fault structure through the ground surface based measurement. Based on the geological investigation and lithogic information from wells, the AMT data from six soundings at Wugu site, nine soundings at XinZhuang site and eight sounding at GuanDu site were collected on a NE-SW profile, approximately perpendicular to the prospective strike of the Shanchiao fault. AMT data were then inverted for two- dimension resistivity models (sections). The features of all resistivity sections are similar; an apparent drop in resistivity was observed at the position correlates to the western edge of Taipei basin. The predicted location of Shanchiao fault matches was verified by the lithologic sections of boreholes nearby. It indicates that the Shanchiao normal fault may associate with the subsidence of Taipei basin. The basement is clearly detected as a geoelectrical unit having resistivity less than 250 . It has a trend of increasing its depth toward S-E. The uplift of layers in the east of resistivity sections may affect by the XinZhuang thrust fault from the east. As with each site, the calculated resistivity may affect by cultural interference. However, the AMT survey still successfully delineates the positions and features of the Shanchiao

Acoustic radiation from the submerged circular cylindrical shell treated with active constrained layer damping

Science.gov (United States)

Yuan, Li-Yun; Xiang, Yu; Lu, Jing; Jiang, Hong-Hua

2015-12-01

Based on the transfer matrix method of exploring the circular cylindrical shell treated with active constrained layer damping (i.e., ACLD), combined with the analytical solution of the Helmholtz equation for a point source, a multi-point multipole virtual source simulation method is for the first time proposed for solving the acoustic radiation problem of a submerged ACLD shell. This approach, wherein some virtual point sources are assumed to be evenly distributed on the axial line of the cylindrical shell, and the sound pressure could be written in the form of the sum of the wave functions series with the undetermined coefficients, is demonstrated to be accurate to achieve the radiation acoustic pressure of the pulsating and oscillating spheres respectively. Meanwhile, this approach is proved to be accurate to obtain the radiation acoustic pressure for a stiffened cylindrical shell. Then, the chosen number of the virtual distributed point sources and truncated number of the wave functions series are discussed to achieve the approximate radiation acoustic pressure of an ACLD cylindrical shell. Applying this method, different radiation acoustic pressures of a submerged ACLD cylindrical shell with different boundary conditions, different thickness values of viscoelastic and piezoelectric layer, different feedback gains for the piezoelectric layer and coverage of ACLD are discussed in detail. Results show that a thicker thickness and larger velocity gain for the piezoelectric layer and larger coverage of the ACLD layer can obtain a better damping effect for the whole structure in general. Whereas, laying a thicker viscoelastic layer is not always a better treatment to achieve a better acoustic characteristic. Project supported by the National Natural Science Foundation of China (Grant Nos. 11162001, 11502056, and 51105083), the Natural Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No. 2012GXNSFAA053207), the Doctor Foundation of Guangxi

Frequencies and ethnic distribution of ABO and RhD blood groups in China: a population-based cross-sectional study.

Science.gov (United States)

Liu, Jue; Zhang, Shikun; Wang, Qiaomei; Shen, Haiping; Zhang, Yiping; Liu, Min

2017-12-03

ABO and RhD blood groups are key factors affecting blood transfusion safety. The distribution of ABO and RhD blood groups varies globally, but limited data exist for ethnic distributions of these blood groups in Asian populations. We aimed to evaluate the distribution of ABO and RhD blood groups among Chinese ethnic groups. A population-based cross-sectional study. Data on ABO groups and ethnicities were obtained from the National Free Preconception Health Examination Project (NFPHEP) with participants from 220 counties of 31 provinces in China PARTICIPANTS: There were 3 832 034 participants aged 21-49 years who took part in the NFPHEP from January 2010 to December 2012 and were included in this study. The proportion of ABO and RhD blood groups among different ethnic groups was calculated. ABO and RhD blood distribution was significantly different among nine ethnic groups (Pgroups, the Yi group had more A phenotypes (34.0%), and the Manchu (33.7%) and Mongolian (33.3%) ethnic groups had more B phenotypes. The Zhuang group had the greatest proportion of O phenotypes (41.8%), followed by the Miao group (37.7%). AB phenotypes were more frequent in the Uygur ethnic group (10.6%) but lower in the Zhuang group (5.5%). Meanwhile, RhD negativity (RhD-) was greater in the Uygur group (3.3%) than in the Mongolian (0.3%) and Manchu ethnic groups (0.4%). O RhD- blood groups were more frequent in the Uygur group (0.8%) than in the other ethnic groups (0.1%-0.4%, Pblood phenotypes vary across different ethnic groups in China. The diversity in the distribution of the ABO and RhD blood groups in different ethnic groups should be considered when developing rational and evidence-based strategies for blood collection and management. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

Electron beam cooling by laser

CERN Document Server

Urakawa, J; Terunuma, N; Taniguchi, T; Yamazaki, Y; Hirano, K; Nomura, M; Sakai, I; Takano, M; Sasao, N; Honda, Y; Noda, A; Bulyak, E; Gladkikh, P; Mystykov, A; Zelinsky, A; Zimmermann, Frank

2004-01-01

In 1997, Z.Huang and R.Ruth proposed a compact laser-electron storage ring (LESR) for electron beam cooling or x-ray generation. Because the laser-wire monitor in the ATF storage ring has worked well and demonstrated the achievement of the world's smallest transverse emittance for a circulating electron beam, we have started the design of a small storage ring with about 10 m circumference and the development of basic technologies for the LESR. In this paper, we describe the design and experimental results of pulse stacking in a 42-cm long optical cavity. Since our primary purpose is demonstrating the proof-of-principle of the LESR, we will then discuss the future experimental plan at the KEK-ATF for the generation of high average-brilliance gamma-rays.

La trazabilidad:

OpenAIRE

Green, Raúl; Hy, Michel

2003-01-01

1.- Artículos Caraballo, Leonardo Javier. "Modelo de explotación óptima de la tierra para uso agrícola" Green, Raúl; Hy, Michel. "La trazabilidad: un instrumento de la seguridad alimentaria" Iriarte, Liliana; Briera, Susana; Bottazzi, Mariela; Ghezán, Graciela. "El comercio intraindustrial agroalimentario argentino en la década de los noventa" Gutiérrez, Alejandro; Linares Morales, Yuraima. "La competitividad de la producción de papa (Solanum tuberosum) en el Municipio...

INCLUFAR – INCLUSIVE FARMING – A NEW EDUCATIONAL APPROACH IN SOCIAL FARMING

OpenAIRE

van Elsen, Thomas; Herz, Gerhard; Ehlers, Hartwig; Schäfer, Winfried; Merckens, Klaus

2014-01-01

"Social farming" and “Green Care” are being developed throughout Europe: farms which put the "multifunctionality" demanded by the policy makers into practice, contributing to the creation of jobs in rural areas through the creation of social services. The team of authors has applied successfully to run the project “Inclusive farming – transfer of concepts, experiences, skills and training tools for Social Farming and eco-social inclusion” within the “Leonardo da Vinci - Transfer of Innovation...

Association of aortic coarctation and malignant right coronary artery anomaly: an unusual cause of angina pectoris

OpenAIRE

Schafranski, Marcelo; Almeida,; Sirtoli,; Pilatti,; Valladão,; Schafranski,Marcelo

2011-01-01

Rubens Sirtoli Filho1, Leonardo Cao Cãmbra de Almeida1, Maysa Godoy Gomes Mazurek Sirtoli1, Liliana Pena Pilatti2, Marcelo Valladão de Carvalho2, Marcelo Schafranski31Real e Benemérita Associação Portuguesa de Beneficência, São Paulo, Brazil; 2Department of Hemodynamics, 3Department of Intensive Care, Hospital Bom Jesus, Ponta Grossa, BrazilAbstract: A 53-year-old man with exercise-induced ischemia was referred for in...

STUDIO AZZURRO: TRES DÉCADAS DE EXPERIMENTACIÓN EN LA CREACIÓN AUDIOVISUAL Y LOS ESPACIOS SENSORIALES.

OpenAIRE

VALDALISO CASANOVA, TERESA

2016-01-01

[EN] Studio Azzurro is, probably, the main exponent in the field of research, experimentation and artistic hybridization with regard to the audio-visual language and the new technologies, inside the current Italian scene. Founded in Milan in 1982 by three artists, Paolo Rosa, Fabio Cirifino and Leonardo Sangiorgi, from the beginning they have opted for the collaborative team work, distancing themselves from the opinions of the critique and from the art market. Characterized by a militant past...

MOSEP – More Self-Esteem With My E-Portfolio Development of a Train-the-Trainer Course for E-Portfolio Tutors

Directory of Open Access Journals (Sweden)

Wolf Hilzensauer

2009-03-01

Full Text Available E-portfolios are known as a technology- supported learning method for the documentation of competency development. In this article the didactic approach, the course design and the results of the Leonardo da Vinci project MOSEP (More self-esteem with my e-portfolio are described. The main objective of the project was to develop, test and evaluate a new e-portfolio training concept for teachers and tutors in order to support learners during their competence development phase.

Prevention of diabetic eye disease: the commonest cause of blindness in individuals younger than 65 years

OpenAIRE

Tatti, Patrizio

2010-01-01

Patrizio Tatti1, Patrizia Di Mauro1, Leonardo Masselli1, Adriano Longobardi2, Annabel Barber31Diabetes and Endocrinology Department, 2UOS Eye Surgery, Ospedale S Giuseppe, ASL RMH, Rome, Italy; 3University of Nevada School of Medicine, Las Vegas, NV, USAAbstract: There has been a considerable advancement in the treatment of diabetes and understanding of the biochemical mechanisms underlying diabetic complications in the last 20 years. However, this advancement has not translated into a consis...

Reflexiones sobre la seguridad alimentaria y la situación alimentaria internacional

OpenAIRE

Molina, Luisa Elena

2006-01-01

1.- Artículos Caraballo, Leonardo Javier. "Modelo de explotación óptima de la tierra para uso agrícola" Green, Raúl; Hy, Michel. "La trazabilidad: un instrumento de la seguridad alimentaria" Iriarte, Liliana; Briera, Susana; Bottazzi, Mariela; Ghezán, Graciela. "El comercio intraindustrial agroalimentario argentino en la década de los noventa" Gutiérrez, Alejandro; Linares Morales, Yuraima. "La competitividad de la producción de papa (Solanum tuberosum) en el Municipio...

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

Science.gov (United States)

Struthers, Sally A.

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

STS-102 Astronaut Thomas Views International Space Station Through Shuttle Window

Science.gov (United States)

2001-01-01

STS-102 astronaut and mission specialist, Andrew S.W. Thomas, gazes through an aft window of the Space Shuttle Orbiter Discovery as it approaches the docking bay of the International Space Station (ISS). Launched March 8, 2001, STS-102's primary cargo was the Leonardo, the Italian Space Agency-built Multipurpose Logistics Module (MPLM). The Leonardo MPLM is the first of three such pressurized modules that will serve as the ISS's moving vans, carrying laboratory racks filled with equipment, experiments, and supplies to and from the Station aboard the Space Shuttle. The cylindrical module is approximately 21-feet long and 15- feet in diameter, weighing almost 4.5 tons. It can carry up to 10 tons of cargo in 16 standard Space Station equipment racks. Of the 16 racks the module can carry, 5 can be furnished with power, data, and fluid to support refrigerators or freezers. In order to function as an attached station module as well as a cargo transport, the logistics module also includes components that provide life support, fire detection and suppression, electrical distribution, and computer functions. NASA's 103rd overall mission and the 8th Space Station Assembly Flight, STS-102 mission also served as a crew rotation flight. It delivered the Expedition Two crew to the Station and returned the Expedition One crew back to Earth.

Neutron back scattering for the search of the Battle of Anghiari

International Nuclear Information System (INIS)

Bom, V.R.; Cosentino, A.; Seracini, M.; Rosa, R.

2010-01-01

The 'Battle of Anghiari' is a wall painting made by Leonardo Da Vinci around 1505. Its present day location is unknown but some indications suggest that the mural might be concealed behind a brick wall. Test measurements are presented demonstrating that neutron back scattering (NBS) can be used to search through the wall for the painting. NBS is a non-destructive technique to establish the presence of the hydrogen contained in the painting materials that were probably used by Da Vinci.

Understanding the Two-Photon Absorption Spectrum of PE2 Platinum Acetylide Complex

Science.gov (United States)

2014-07-09

Materials Division Marcelo G. Vivas - Instituto de Ciência de Tecnologia , Universidade Federal de Alfenas, Cidade Universitári, BR Leonardo De Boni...Instituto de Ciência de Tecnologia , Universidade Federal de Alfenas, Cidade Universitári, BR 267 Km 533, 37715- 400 Poços de Caldas, MG Brazil...Saõ Paulo, CP 369, 13560-970, Saõ Carlos, SP Brazil ‡Instituto de Cien̂cia de Tecnologia , Universidade Federal de Alfenas, Cidade UniversitaŕiaBR

Nova Talenta: 2015-2016

OpenAIRE

Cortés Agudelo, Gina Paola; Lacouture, Olga Lucia; Arevalo, Alejandro; Arevalo, Alejandro; Suárez, Iván; Zuluaga, Jhon; Mendez Sarmiento, David Leonardo; Cruz Mancheno, Maria José; Avella Torres, Maria Alejandra; Umaña Roa, Laura Katherine; García Morales, Diego Stiven; Arksoussi Fakih, Mohamed Zakaria el; Ordoñez Valencia, María Paula; Andrade Palau, Daniela; Villarreal Rodríguez, Natalia

2016-01-01

Introducción -- Liderazgo transformacional e inteligencia emocional: una revisión / Gina Paola Cortés Agudelo, Olga Lucia Lacouture -- El liderazgo transformacional y sus implicaciones en la cultura organizacional: una revisión de la literatura / Alejandro Arévalo, Iván Suárez, Jhon Zuluaga -- Liderazgo femenino: una revisión a la literatura / David Leonardo Méndez Sarmiento, María José Cruz Mancheno -- Liderazgo adaptativo y las relaciones de aprendizaje: implicaciones para las organizacion...

Cover, North Atlantic Treaty Organization, Strategic Insights, v. 10, Issue 3 (Winter 2011)

OpenAIRE

2011-01-01

The cover on this edition of Strategic Insights features the NATO sigil overlaid with Leonardo da Vinci’s Vitruvian Man. The original Vitruvian Man was designed by the Roman architect Vitruvius in an attempt to define artistic proportions for the human body. Da Vinci made adjustments to Vitruvius’s proportions, making them more accurate. Specifically, da Vinci realized that the circle and square that outline the limits of the man’s limbs do not have the same center: the center of the circl...

Design of an eLearning System for Accreditation of Non-formal Learning

OpenAIRE

Kovatcheva , Eugenia; Nikolov , Roumen

2008-01-01

This paper deals with issues related to the non-formal learning in vocational education, and the role of ICT for providing appropriate accreditation model in such education. The presented conclusions are based on the Leonardo da Vinci project LeoSPAN. The paper emphasises on the development of a model and a prototype of an adaptive eLearning system that ensures the pre-defined learner outcomes. One of the advantages of the eLearning system is the flexibility for people who upgrade and improve...

Evidences for the view of the importance of Hepu seaport in ancient China

International Nuclear Information System (INIS)

Guan Yongjing; Xiong Zhaoming; Ruan Xiangdong; Wang Huijuan; Terrasi, Filippo

2013-01-01

Two ancient tombs considered belonging to the Han Dynasty (206 BC to AD 220), were excavated in Hepu, Guangxi Zhuang Autonomous Region, China. According to the style of cultural relics, some excavated artifacts did not come from the region. If the age of the tombs can be confirmed as belonging to the Han Dynasty, the exotic artifacts present significant evidence to suggest that that Hepu is one of the oldest seaports on China’s ancient maritime trading route. Two wood samples were sent for 14 C dating at CIRCE, Italy. The results of these measurements are presented and the related chronology is discussed. Considering the previous results from a pottery workshop and an excavated sea wharf, the interpretation of Hepu as one of the oldest seaports in ancient China and the important role it played is presented.

At the Origin of Leonardo’s Ideal Man

OpenAIRE

Claudio Sgarbi

2012-01-01

After the discovery and the research developed in the last twenty years, it has been possible to announce, in 2010, a convincing attribution for the manuscript brought to the attention of the public as Vitruvio Ferrarese. The author is Giacomo Andrea da  Ferrara. Luca Pacioli defined him a great expert on Vitruvius and a very close friend of Leonardo da Vinci (“suo quanto fratello”). The discovery of the author was possible just because of the profound relationships between the drawings of Gi...

Owners responsibility of refrigeration equipment according F-Gas-regulation 'EC 842/2006' and answers; Betreiberpflichten nach 'F-Gas-Verordnung' EG 842/2006 und Antworten darauf

Energy Technology Data Exchange (ETDEWEB)

Beermann, Karsten [IKKE gGmbH, Duisburg (Germany)

2012-08-15

The results of the F-Gas-regulation EC 842/2006 are some responsibilities for owners of refrigeration equipment. To fulfill these duties exist e-learning training modules and different tools which are the result of a European LEONARDO- project. Particularly the awareness of the equipment owner and the certified person (refrigeration technician) according the regulation will be the main background of a safe handling of refrigerants for an effective environmental protection. Interested persons and companies will find helpful information to learn good practice. (orig.)

Estudio hidrogeológico para el establecimiento de un campo de pozos a explotar por aguas de Mérida c.a., en la zona comprendida entre los sectores de Aroa II y Prado Hermoso de El Vigía, municipio Alberto Adriani del Estado Mérida

OpenAIRE

Pérez Moreno, Nohelia del Rocío; Sánchez Caro, Carlos Paúl

2014-01-01

Tutor Indutrial Ing. Leonardo Trejo. La zona estudiada se ubica en la ciudad de El Vigía, entre los sectores de Aroa II y la Urb. Prado Hermoso del municipio Alberto Adriani; abarca un área aproximada de tres (3) kilómetros cuadrados, ubicada dentro de un abanico aluvial, donde se hicieron tres (3) calicatas, alcanzando una profundidad máxima de 138 centímetros, y en las que se apreció una granocrecencia de tope a base. De igual manera, se recolectaron ci...

Study on Investing and Financing Development in Rural Area:A Case Study of Guangxi Zhuang Autonomous Region

Institute of Scientific and Technical Information of China (English)

Junyong; HUANG; Bin; YAO

2013-01-01

"Surplus income" of farmers has been increasing steadily with the marked improvement of rural economy. However,development of rural financing market in China is rather backward. To satisfy the financing requirement of farmers and meet the demand of the construction of new countryside as well as harmonious society,development of financing market in rural area is eager to be quickened. Taking Guangxi Autonomous Region as an example,there are problems in rural investing and financing development. Firstly,farmers are in lacking of accurate understanding of investing and financing. Secondly,investors in rural area lack professional knowledge about financing generally. Thirdly,rural area has underdeveloped information degree as well as imperfect investing and financing environment. Fourthly,there are no financial products developed for rural area. Fifthly,economic development is unbalanced and relatively underdeveloped in rural area. Lastly,rural financial market has long been neglected by financial intermediaries. In order to cope with these problems,firstly,farmers should be assisted to establish accurate financial awareness and master necessary financial knowledge. Secondly,local intermediaries like securities firms and banks should be encouraged to exert impact on rural financial market. Thirdly,financial products suitable for Guangxi rural area are to be developed. Fourthly, construction and perfection of rural financial market should be quickened. Lastly,rural economic development should be quickened to enlarge capital source of financing.

Looking for Common Fingerprints in Leonardo's Pupils Using Nondestructive Pigment Characterization.

Science.gov (United States)

Bonizzoni, Letizia; Gargano, Marco; Ludwig, Nicola; Martini, Marco; Galli, Anna

2017-08-01

Non-invasive, portable analytical techniques are becoming increasingly widespread for the study and conservation in the field of cultural heritage, proving that a good data handling, supported by a deep knowledge of the techniques themselves, and the right synergy can give surprisingly substantial results when using portable but reliable instrumentation. In this work, pigment characterization was carried out on 21 Leonardesque paintings applying in situ X-ray fluorescence (XRF) and fiber optic reflection spectroscopy (FORS) analyses. In-depth data evaluation allowed to get information on the color palette and the painting technique of the different artists and workshops . Particular attention was paid to green pigments (for which a deeper study of possible pigments and alterations was performed with FORS analyses), flesh tones (for which a comparison with available data from cross-sections was made), and ground preparation.

PROFESSOR ZDZISŁAW ŻYGULSKI JR.: AN OUTSTANDING PERSON, A GREAT PERSONALITY, A MUSEUM PROFESSIONAL, A RESEARCHER ON ANTIQUE WEAPONS, ORIENTAL ART AND EUROPEAN PAINTING (1921–2015)

OpenAIRE

Teresa Grzybkowska

2017-01-01

Professor Zdzisław Żygulski Jr. (1921–2015) was one of the most prominent Polish art historians of the second half of the 20th century. He treated the history of art as a broadly understood science of mankind and his artistic achievements. His name was recognised in global research on antique weapons, and among experts on Rembrandt and Leonardo da Vinci. He studied museums and Oriental art. He wrote 35 books, about 200 articles, and numerous essays on art; he wrote for the daily press about h...

Tarras Wanheim 1965-2005

DEFF Research Database (Denmark)

Bay, Niels; De Chiffre, Leonardo

students, graduate students, and post docs. The second part presents a selection of his research publications in international scientific journals and conference proceedings. During his career, Professor Wanheim has founded and directed for 30 years the Laboratory of Mechanical Processing of Materials...... at the Department of Manufacturing Engineering and Management, placing it as one of the internationally renown research centres for metal forming. The undersigned, Leonardo De Chiffre and Niels Bay, have prepared this book as an acknowledgement from the laboratory to Professor Wanheim in connection with his...

Cinema as a tool of fabulation, memory and invention: readings of the films "Mauro em Caiena" and "White Out, Black In"

Directory of Open Access Journals (Sweden)

Aline Portugal

2015-12-01

Full Text Available This article tries to perceive, in Mauro em Caiena (Leonardo Mouramateus. Fortaleza, 2012 and White Out, Black In (Adirley Queirós. Brasília, 2014, how these films deals with fabu­lation and memory in a creative perspective to think about city. We see the films as machines — in the way of Guattari’s concept — noticing the agencies and connections they do. We will look also for the form the films use “science fiction” elements, extrapolating real without going too far from it.

Being there: The continuing need for human presence in the deep ocean for scientific research and discovery

Science.gov (United States)

Fryer, P.; Fornari, D.; Perfit, M.; Von Damm, K.; Humphris, S.; Fox, P. J.; Lippsett, L.

We see with our mind's eye. This poetic phrase attempts to describe a complex set of human interactions by which we take in and process information about the physical world around us. For millennia, scientists and philosophers have relied on our ability to apply the uniquely human traits of perception, cognition, memory and motor action to scientific observations and experiments. "There is no authority higher than the human eye," observed Leonardo Da Vinci, and his statement still holds true; as most field scientists will attest, there is no substitute for direct observation.

A portable X-ray diffraction apparatus for in situ analyses of masters' paintings

Science.gov (United States)

Eveno, Myriam; Duran, Adrian; Castaing, Jacques

2010-09-01

It is rare that the analyses of materials in paintings can be carried out by taking micro-samples. Valuable works of art are best studied in situ by non-invasive techniques. For that purpose, a portable X-ray diffraction and fluorescence apparatus has been designed and constructed at the C2RMF. This apparatus has been used for paintings of Rembrandt, Leonardo da Vinci, Van Gogh, Mantegna, etc. Results are given to illustrate the performance of X-ray diffraction, especially when X-ray fluorescence does not bring sufficient information to conclude.

History of rotating machinery dynamics

CERN Document Server

Rao, JS

2011-01-01

This book starts with the invention of the wheel nearly 5000 years ago, and via Archimedes, Aristotle and Hero describes the first practical applications such as water wheels and grinding wheels, pushing on to more rigorous scientific research by inquiring minds such as Leonardo da Vinci and Copernicus in later ages. Newton and Leibniz followed, and beam structures received maximum attention three centuries ago. As focus shifts and related disciplines such as mathematics and physics also develop, slowly turbomachines and rotor and blade dynamics as we know the subject now take shape. While the

A portable X-ray diffraction apparatus for in situ analyses of masters' paintings

International Nuclear Information System (INIS)

Eveno, Myriam; Duran, Adrian; Castaing, Jacques

2010-01-01

It is rare that the analyses of materials in paintings can be carried out by taking micro-samples. Valuable works of art are best studied in situ by non-invasive techniques. For that purpose, a portable X-ray diffraction and fluorescence apparatus has been designed and constructed at the C2RMF. This apparatus has been used for paintings of Rembrandt, Leonardo da Vinci, Van Gogh, Mantegna, etc. Results are given to illustrate the performance of X-ray diffraction, especially when X-ray fluorescence does not bring sufficient information to conclude. (orig.)

Os conceitos elementares de estatística a partir do homem vitruviano: uma experiência de ensino em ambiente computacional

OpenAIRE

Silva, Edgard Dias da

2008-01-01

O objetivo deste trabalho foi investigar as potencialidades de uma intervenção de ensino sobre os conceitos elementares de Estatística com alunos do Ensino Médio, construída a partir de uma visita cultural (exposição de Leonardo Da Vinci), tendo como ferramenta o ambiente computacional. Trata-se de uma pesquisa de cunho quali-quantitativo, que seguiu um modelo quaseexperimental, no formato pré-teste/intervenção/pós-teste, complementada pela análise qualitativa das atividades...

Solar energy e-learning laboratory - Remote experimentation over the Internet

Directory of Open Access Journals (Sweden)

Polyvios C Eleftheriou

2005-11-01

Full Text Available This paper presents the solar energy e-learning laboratory, developed at the Higher Technical Institute (HTI within the framework of the Leonardo da Vinci project MARVEL, focuses on the system architecture and its features, and elaborates on the learning platform employed. The laboratory focuses on experiential based learning-arrangements allowing remote and distributed training with the laboratory of solar energy. As a prototype working example the HTI solar energy laboratory comprises a remotely accessible pilot solar energy conversion plant employing the state of the art in software design.

The Mathematical Works of Leon Battista Alberti

CERN Document Server

Williams, Kim; Wassell, Stephen R

2010-01-01

Leon Battista Alberti was an outstanding polymath of the fifteenth century, alongside Piero della Francesca and before Leonardo da Vinci. While his contributions to architecture and the visual arts are well known and available in good English editions, and much of his literary and social writings are also available in English, his mathematical works are not well represented in readily available, accessible English editions have remained accessible only to specialists. The four treatises included here - Ludi matematici, De Componendis Cifris, Elementi di pittura and De lunularum quadratura - ar

A latest Permian non-reef calcisponge fauna from Laibin, Guangxi, southern China and its significance

Directory of Open Access Journals (Sweden)

Ya-Sheng Wu

2017-01-01

Full Text Available A calcisponge fauna occurs in uppermost Permian Conodont Clarkina meishanensis yini zone of the sequence exposed in the vicinity of Laibin, Guangxi Zhuang Autonomous Region, southern China. The fauna is dominated by one thalamid species, Amblysiphonella vesiculosa de Koninck, 1863, and one new sclerosponge genus and species, Radiofibrosclera laibinensis gen. et sp. nov. They are associated with a few other accessory species, including the thalamid sponges Amblysiphonella laibinensis Deng, 1981, Colospongia sp., Polycystocoelia sp., and the inozoan sponge Acoelia discontinua sp. nov. Though the individuals are abundant, the species diversity is very low. Without common calcisponge components of Changhsingian reefal faunas, the assemblage is interpreted as not a reefal fauna. The water depth at which they dwelled was less than 105 m, and more probably less than 40 m. Its occurrence indicates a significant sea-level drop at the end of Late Permian Changhsingian Age.

Prevalence of Balantidium coli Infection in Bred Rhesus Monkeys (Macaca mulatta in Guangxi, southern China.

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Hai Long Li

2014-03-01

Full Text Available Balantidium coli infects humans, primates and pigs, causing serious diarrhea and dysentery. Little information on the prevalence of B. coli in primates is available in China. This investigation was conducted to determine the prevalence of B. coli infection in bred rhesus monkeys in Guangxi Zhuang Nationality Autonomous Region (GZNAR, southern China.A total of 120 fecal samples were collected from rhesus monkeys bred in cages in GZNAR and B. coli cysts and/or trophozoites were examined microscopically after sedimentation with water in May 2013.(64.2% samples were tested positive. The prevalence was 65% (39/60 and 63.3% (38/60 in female and male monkeys, respectively. 80% (48/60 cages in this nonhuman primate center were positive for B. coli.The present survey revealed high circulation of B. coli in bred rhesus monkeys in GZNAR, which poses potential threats to animal and human health.

Featured Image: Stars from Broken Clouds and Disks

Science.gov (United States)

Kohler, Susanna

2018-04-01

This still from a simulation captures binary star formation in action. Researchers have long speculated on the processes that lead to clouds of gas and dust breaking up into smaller pieces to form multiple-star systems but these take place over a large range of scales, making them difficult to simulate. In a new study led by Leonardo Sigalotti (UAM Azcapotzalco, Mexico), researchers have used a smoothed-particle hydrodynamics code to model binary star formation on scales of thousands of AU down to scales as small as 0.1 AU. In the scene shown above, a collapsing cloud of gas and dust has recently fragmented into two pieces, forming a pair of disks separated by around 200 AU. In addition, we can see that smaller-scale fragmentation is just starting in one of these disks, Disk B. Here, one of the disks spiral arms has become unstable and is beginning to condense; it will eventually form another star, producing a hierarchical system: a close binary within the larger-scale binary. Check out the broaderprocessin the four panels below (which show the system as it evolves over time), or visitthe paper linked below for more information about what the authors learned.Evolution of a collapsed cloud after large-scale fragmentation into a binary protostar: (a) 44.14 kyr, (b) 44.39 kyr, (c) 44.43 kyr, and (d) 44.68 kyr. The insets show magnifications of the binary cores. [Adapted from Sigalotti et al. 2018]CitationLeonardo Di G. Sigalotti et al 2018 ApJ 857 40. doi:10.3847/1538-4357/aab619

Precipitation Interpolation by Multivariate Bayesian Maximum Entropy Based on Meteorological Data in Yun- Gui-Guang region, Mainland China

Science.gov (United States)

Wang, Chaolin; Zhong, Shaobo; Zhang, Fushen; Huang, Quanyi

2016-11-01

Precipitation interpolation has been a hot area of research for many years. It had close relation to meteorological factors. In this paper, precipitation from 91 meteorological stations located in and around Yunnan, Guizhou and Guangxi Zhuang provinces (or autonomous region), Mainland China was taken into consideration for spatial interpolation. Multivariate Bayesian maximum entropy (BME) method with auxiliary variables, including mean relative humidity, water vapour pressure, mean temperature, mean wind speed and terrain elevation, was used to get more accurate regional distribution of annual precipitation. The means, standard deviations, skewness and kurtosis of meteorological factors were calculated. Variogram and cross- variogram were fitted between precipitation and auxiliary variables. The results showed that the multivariate BME method was precise with hard and soft data, probability density function. Annual mean precipitation was positively correlated with mean relative humidity, mean water vapour pressure, mean temperature and mean wind speed, negatively correlated with terrain elevation. The results are supposed to provide substantial reference for research of drought and waterlog in the region.

Violence, stigma and mental health among female sex workers in China: A structural equation modeling.

Science.gov (United States)

Zhang, Liying; Li, Xiaoming; Wang, Bo; Shen, Zhiyong; Zhou, Yuejiao; Xu, Jinping; Tang, Zhenzhu; Stanton, Bonita

2017-07-01

Intimate partner violence is prevalent among female sex workers (FSWs) in China, and it is significantly associated with mental health problems among FSWs. However, limited studies have explored the mechanisms/process by which violence affects mental health. The purpose of this study was to explore the relationships among partner violence, internalized stigma, and mental health problems among FSWs. Data were collected using a self-administered cross-sectional survey administered to 1,022 FSWs in the Guangxi Zhuang Autonomous Region (Guangxi), China during 2008-2009. We used structural equation modeling to test the hypothesized relationships. Results indicated that violence perpetrated by either stable sexual partners or clients was directly and positively associated with mental health problems. Violence also had an indirect relation to mental health problems through stigma. Results highlight the need for interventions on counseling and care for FSWs who have experienced violence and for interventions to increase FSWs' coping skills and empowerment strategies.

A brief history of light and those that lit the way

CERN Document Server

Weiss, Richard J

1996-01-01

From Leonardo to Oppenheimer, from candles to lasers, from cave drawings to cinema, from Stonehenge to quantum mechanics, from Genesis to the Big Bang, light has filled our thoughts, our way of life, our aesthetics, our technology, and our means for survival. Richard Weiss leads us along these paths over the past 500 light years. The way is lit by pioneers such as Rembrandt, Einstein, D W Griffith, Newton, and Heisenberg. A Brief History Of Light, And Those That Lit The Way is a summer's day roller-coaster ride through five centuries of man's achievements in understanding and manipulati

"O Brave New World": A Change in the Weather.

Directory of Open Access Journals (Sweden)

David Haley

2000-02-01

Full Text Available The concept of "Waterfronts" becomes a powerful poetic metaphor. A point of departure and arrival in understanding arts practises. The ebb and flow between definitions of Nature and Culture. The littoral from which evolutionary transition is made. Referencing The Tempest by William Shakespeare (1564 -1616 some paintings by Turner and the drawings of Leonardo da Vinci (1452 - 1519, this presentation considers how Public Art in the context of urban and social development may start to engage the issue of Climate Change. It will also explore our relationship with water from different perspectives, as a learning process.

Italy flags scientific shortcomings

Science.gov (United States)

Cartlidge, Edwin

2008-04-01

The land that gave us Leonardo da Vinci, Galileo Galilei and Enrico Fermi does not regard science as part of culture, but it must do so if it is to avoid being left behind economically and intellectually. That is the message from a working group of 18 academics, sponsored by the Italian government, to find ways of improving the quantity, quality and public perception of science in the country. The group has now put forward a range of measures to combat what the group's chair, left-wing politician and Siena University law professor Luigi Berlinguer, describes as a "national emergency".

Composition and stratigraphy of the paint layers: investigation on the Madonna dei Fusi by ion beam analysis techniques

Science.gov (United States)

Grassi, N.

2005-06-01

In the framework of the extensive study on the wood painting "Madonna dei fusi" attributed to Leonardo da Vinci, Ion Beam Analysis (IBA) techniques were used at the Florence accelerator laboratory to get information about the elemental composition of the paint layers. After a brief description of the basic principle and the general features of IBA techniques, we will illustrate in detail how the analysis allowed us to characterise the pigments of original and restored areas and the substrate composition, and to obtain information about the stratigraphy of the painting, also providing an estimate of the paint layer thickness.

La ciencia de la política.

OpenAIRE

Bolívar Meza, Rosendo

2007-01-01

Presentación. Ramos Jiménez, Alfredo Los círculos bolivarianos. El mito de la unidad del pueblo. Arenas, Nelly y Gómez Calcaño, Luis Lo massmediático y las sociedades contemporáneas. Un acercamiento a la relación medios-democracia. Briceño Romero, Ysabel La economía ambiental y la política ambiental. Caraballo, Leonardo Javier Veinte años de democracia en la Argentina. ¿Qué democracia? Kers, Mercedes y Leiras, Santiago C. La ciencia de la política. Bolívar ...

Sobrado, Miguel y Rojas Herrera, Juan José: América Latina: crisis del estado clientelista y la construcción de repúblicas ciudadanas.

OpenAIRE

García S., Francisco R.

2007-01-01

Presentación. Ramos Jiménez, Alfredo Los círculos bolivarianos. El mito de la unidad del pueblo. Arenas, Nelly y Gómez Calcaño, Luis Lo massmediático y las sociedades contemporáneas. Un acercamiento a la relación medios-democracia. Briceño Romero, Ysabel La economía ambiental y la política ambiental. Caraballo, Leonardo Javier Veinte años de democracia en la Argentina. ¿Qué democracia? Kers, Mercedes y Leiras, Santiago C. La ciencia de la política. Bolívar ...

La economía ambiental y la política ambiental.

OpenAIRE

Caraballo, Leonardo Javier

2007-01-01

Presentación. Ramos Jiménez, Alfredo Los círculos bolivarianos. El mito de la unidad del pueblo. Arenas, Nelly y Gómez Calcaño, Luis Lo massmediático y las sociedades contemporáneas. Un acercamiento a la relación medios-democracia. Briceño Romero, Ysabel La economía ambiental y la política ambiental. Caraballo, Leonardo Javier Veinte años de democracia en la Argentina. ¿Qué democracia? Kers, Mercedes y Leiras, Santiago C. La ciencia de la política. Bolívar ...

Teoría de la organización y administración pública. Revisión crítica de la perspectiva weberiana de la burocracia.

OpenAIRE

Grimaldo Lorente, Jaime

2007-01-01

Presentación. Ramos Jiménez, Alfredo Los círculos bolivarianos. El mito de la unidad del pueblo. Arenas, Nelly y Gómez Calcaño, Luis Lo massmediático y las sociedades contemporáneas. Un acercamiento a la relación medios-democracia. Briceño Romero, Ysabel La economía ambiental y la política ambiental. Caraballo, Leonardo Javier Veinte años de democracia en la Argentina. ¿Qué democracia? Kers, Mercedes y Leiras, Santiago C. La ciencia de la política. Bolívar ...

El mito de la unidad del pueblo.

OpenAIRE

Arenas, Nelly; Gómez Calcaño, Luis

2007-01-01

Presentación. Ramos Jiménez, Alfredo Los círculos bolivarianos. El mito de la unidad del pueblo. Arenas, Nelly y Gómez Calcaño, Luis Lo massmediático y las sociedades contemporáneas. Un acercamiento a la relación medios-democracia. Briceño Romero, Ysabel La economía ambiental y la política ambiental. Caraballo, Leonardo Javier Veinte años de democracia en la Argentina. ¿Qué democracia? Kers, Mercedes y Leiras, Santiago C. La ciencia de la política. Bolívar ...

Barry Buzan y la teoría de los complejos de seguridad.

OpenAIRE

Sisco Marcano, Claudia; Chacón Maldonado, Oláguer

2007-01-01

Presentación. Ramos Jiménez, Alfredo Los círculos bolivarianos. El mito de la unidad del pueblo. Arenas, Nelly y Gómez Calcaño, Luis Lo massmediático y las sociedades contemporáneas. Un acercamiento a la relación medios-democracia. Briceño Romero, Ysabel La economía ambiental y la política ambiental. Caraballo, Leonardo Javier Veinte años de democracia en la Argentina. ¿Qué democracia? Kers, Mercedes y Leiras, Santiago C. La ciencia de la política. Bolívar ...

Rivas Leone, José Antonio: El desconcierto de la política. Los desafíos de la política democrática.

OpenAIRE

Herrera Zgaib, Miguel Ángel

2007-01-01

Presentación. Ramos Jiménez, Alfredo Los círculos bolivarianos. El mito de la unidad del pueblo. Arenas, Nelly y Gómez Calcaño, Luis Lo massmediático y las sociedades contemporáneas. Un acercamiento a la relación medios-democracia. Briceño Romero, Ysabel La economía ambiental y la política ambiental. Caraballo, Leonardo Javier Veinte años de democracia en la Argentina. ¿Qué democracia? Kers, Mercedes y Leiras, Santiago C. La ciencia de la política. Bolívar ...

Red Piloto de Información Hidrometeorológica para el Valle de Aburrá.

OpenAIRE

Jiménez Mejía, José Fernando; Ramírez, Carlos Julio; Ochoa Jaramillo, Andrés; Poveda Jaramillo, Germán; Zapata Jaramillo, Carlos Mario; Marín Morales, María Isabel

2008-01-01

El Aula Taller de Ciencia y Tecnología de la Escuela del Maestro (Municipio de Medellín) y el Aula Taller Leonardo Da Vinci (Universidad Nacional de Colombia, Sede Medellín) vienen trabajando desde hace varios años en una propuesta pedagógica novedosa para el estudio de las ciencias naturales. Esta iniciativa dio origen a una red preliminar de estaciones meteorológicas didácticas en más de diez colegios y escuelas en municipios del Valle de Aburrá, las cuales están en funcionamiento. Este pro...

Directory of Open Access Journals (Sweden)

Leonardo Díaz Collao

2017-12-01

Full Text Available Enrique Cámara de Landa, Matías Isolabella, Leonardo D’Amico, Terada Yoshitaka, eds. Ethnomusicology and Audiovisual Communication: Selected Papers from the MusiCam 2014 Symposium. Valladolid: Universidad de Valladolid, Aula de Música, 2016, 236 pp. Gustavo Celedón Bórquez. Sonido y acontecimiento. Santiago: Ediciones Metales Pesados, 2016, 203 pp. Fondo Nacional de Fomento del Libro y la Lectura, Convocatoria 2016, CNCA. Silvia Andreu Muñoz y Rodrigo Quiroga Provoste. La musicoterapia en Chile: 1955-2014. Santiago de Chile: Escuela de Postgrado, Facultad de Artes Universidad de Chile, 2015, 100 pp.

Proporções áureas em crânios humanos esqueletizados

OpenAIRE

Liz Magalhães Brito

2013-01-01

As proporções na face e no corpo humano são analisadas desde a antiguidade, a exemplo do Homem Vitruviano de Leonardo da Vince. A existência das proporções Divinas ou proporções áureas em crânios esqueletizados é um campo de estudo que apresenta um potencial colaborador para as áreas de sobreposição de imagens, reconstrução facial e identificação forense. O objetivo deste trabalho é estabelecer parâmetros antropométricos regionais baseados nas proporções áureas, instituindo coeficientes e índ...

Validation and industrial application of AFM

DEFF Research Database (Denmark)

Kofod, Niels

This thesis has been prepared as one of the requirements of the industrial researcher and Ph.D- degree. This thesis represented the 2 nd version of this thesis. The work has been carried out from January 1999 to January 2002 at The Danish Institute of Fundamental Metrology (DFM) and The Institute...... of Manufacturing Engineering and Management (IPL), Technical University of Denmark (DTU). The work has been carried out under supervision from Dr. Jørgen Garnæs, DFM, Dr. Techn. Leonardo De Chiffre, IPL/DTU and Dr. Hans Nørgaard Hansen. I would like to thank my supervisors for their inspiration and valuable...

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

Science.gov (United States)

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

2015-01-01

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

LEONARDO BENEVOLO et alt. “LA PROYECTACIÓN DE LA CIUDAD MODERNA”

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Amadeo Ramos Carranza

2011-05-01

Full Text Available Este pequeño libro de Benevolo, Melograni y Giura Longo trata de cómo hacer ciudad con la vivienda. Ciudad y vivienda son dos de las grandes líneas argumentales de nuestra contemporaneidad.La progettazione della cittá moderna surge como resultado de una investigación en el marco de la docencia: tres lecciones impartidas a los estudiantes de la Facultad de Arquitectura de Florencia en curso 1966-67. La primera edición data del año 1969 y la primera en versión castellana vería la luz en 1978, incluida en la colección Punto y Línea de la editorial Gustavo Gili. La colección GGReprints recuperó este libro de claros dictados y necesaria consulta.Pasadas varias décadas, la detenida lectura de su corta introducción suscita renovado interés por vincular investigación científica y proyecto de arquitectura. La investigación científica, también en arquitectura, en 1966 acumulaba más de cincuenta años de continuada práctica.El cruce de modelos que se muestra en sus más de 300 páginas, más que un extenso repertorio a modo de guía sobre viviendas, edificios y formas de ciudad y cuyo interés sería relativo, nos ofrece hoy múltiples instantáneas de formas de vida; algunas de ellas permanecen vigentes mientras otras, han sido convenientemente alteradas. Se refiere de esta manera el laboratorio de arquitectura más extenso conocido en constante transformación: el tiempo transcurrido desde la aparición del libro da a esta investigación sobre modelos residenciales una necesaria y conveniente continuidad.

From Comparison between Scientists to Gaining Cultural Scientific Knowledge: Leonardo and Galileo

Science.gov (United States)

Galili, Igal

2016-01-01

Physics textbooks often present items of disciplinary knowledge in a sequential order of topics of the theory under instruction. Such presentation is usually univocal, that is, isolated from alternative claims and contributions regarding the subject matter in the pertinent scientific discourse. We argue that comparing and contrasting the…

Estudios sobre la libertad en la filosofía de Leonardo Polo

OpenAIRE

Zorroza, M.I. (María Idoya); González-Gonocchio, D. (David)

2012-01-01

Como los trabajos dejan de manifiesto, la filosofía de la libertad de Polo no es pura especulación trascendental, abstracta y alejada de lo empírico. Por el contrario, la libertad inclina a la consideración de todas las dimensiones de lo humano. Es de agradecer que los participantes del congreso hayan abordado temas tan distintos: pedagogía, psicología, epistemología, filosofía de la eco­nomía, de la ciencia, de la historia, del arte, de la cultura, etc. Hemos intentado que el orden de los tr...

El robo de La Gioconda en la prensa española (1911-1914. El nacimiento de un icono artístico / The theft of La Gioconda as seen through the Spanish press (1911-1914.The birth of an artistic icon

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Jesús F. Pascual Molina

2011-07-01

Full Text Available In August 1911, Leonardo da Vinci!s most famous painting was stolen. The repercussions of the case in the written press made the painting omnipresent for people who till then knew very little about it, giving it from that moment on the status of an authentic myth and art icon, a role that it had begun to assume in the middle of the nineteenth century. As happened in other places, the Spanish press spread the news of the event, bringing it, the painting, and its history closer to the Spanish people of the beginning of the twentieth century. At the same time, mass media outlets like the press, advertising, and cinema made use of the art work as a selling point, taking advantage of its popularity.RESUMEN: En agosto de 1911 el cuadro más famoso de Leonardo da Vinci fue robado. La repercusión del caso en la prensa escrita llevó al cuadro a ser omnipresente para la masa que hasta entonces poco sabía de él, alcanzando desde entonces el estatus de auténtico mito e icono del arte, papel que había comenzado a poseer desde mediados del siglo XIX. Como ocurrió en otros lugares la prensa española también se hizo eco de la noticia acercando el suceso, el cuadro y su historia al pueblo español de principios del siglo XX. Al mismo tiempo, los medios de masas como la propia prensa, la publicidad y el cine, emplearon la obra como reclamo, apoyándose en su popularidad.

Collaborative Research: Quantifying Climate Feedbacks of the Terrestrial Biosphere under Thawing Permafrost Conditions in the Arctic

Energy Technology Data Exchange (ETDEWEB)

Melillo, Jerry [Marine Biological Lab., Woods Hole, MA (United States)

2017-12-12

uncertainties. Based on our study results along with a review of observed and projected climate changes in Northern Eurasia by others, we have also outlined a more integrated modelling approach that may be developed and applied in future studies to better capture the influence of earth system feedbacks and human activities on the evolution of climate change effects over time. Specifically, we have examined: 1) how evapotranspiration and water availability have been changing in Northern Eurasia and may change in the future including the impact of forcing uncertainties (Liu et al., 2013, 2014, 2015); 2) how soil consumption of atmospheric methane across the globe have been influenced and may be influenced by climate change and nitrogen deposition during the 20th and 21st centuries (Zhuang et al., 2013); 3) how wetland inundation extent influences net CO2 and CH4 fluxes from northern high latitudes (Zhuang et al., 2015); 4) the relative effects of various environmental factors (including permafrost degradation) on terrestrial dissolved organic carbon (DOC) loading of river networks across the pan-Arctic and how they have changed over the 20th century (Kicklighter et al., 2013); 5) the impacts of recent and future permafrost thaw on land-atmosphere greenhouse gas exchange across the pan-Arctic (Gao et al., 2012, 2013; Hayes et al., 2014; Kicklighter et al. 2015a, 2018); 6) how climate-induced vegetation shifts may affect carbon fluxes and future land use in Northern Eurasia (Jiang et al., 2012, 2016; Kicklighter et al., 2014a) and the globe (Zhuang et al. 2015b); 7) the relative importance of legacies from past land use, future land-use change and climate change on projections of terrestrial carbon fluxes (Monier et al., 2015; Kicklighter et al., 2016); and 8) how the effects of earth system feedbacks and human activities can be better incorporated in assessments of climate change impacts (Monier et al., 2017; Groisman et al., 2018).

Los cuentos tristes

Directory of Open Access Journals (Sweden)

Alberto Aguirre

1993-01-01

Full Text Available La casa del ruego y de la lluvia. Milciades Arévalo. 1992, 119 págs. Esta risa no es de loco. Medardo Arias Satizábal. 1992, 70 págs. La caja de música. Mauricio Peñaranda Castillo. 1992, 69 págs. Mariposas negras sobre la ciudad. Jesús Rincón Murcia. 1992, 167 págs. Acerca y de lejos. Celso Román. 1992, 127 págs. El informe de Galves. Roberto Rubiano Vargas. 1992, 137 págs. El retablo del reposo. Guido Leonardo Tamayo. 1991, 87 págs.

Manual de investigación para estudiantes de Psicología

OpenAIRE

Tomas Caycho

2017-01-01

Metodología de la Investigación para estudiantes de psicología. Manual de entrenamiento y práctica es el resultado de una sistemática y copiosa actividad científica de dos destacados psicólogos argentinos: Fabián Olaz y Leonardo Medrano. El libro resume las preocupaciones de ambos autores por la metodología de investigación en psicología y su interés de que sea entendido de una manera entretenida y práctica por los estudiantes de psicología. Así, señalan que el libro fue “íntegramente elabor...

Surgically repaired cleft lips depicted in paintings of the late Gothic period and the Renaissance.

Science.gov (United States)

Pirsig, W; Haase, S; Palm, F

2001-04-01

Paintings and drawings by Lucas Moser, Leonardo da Vinci, Albrecht Dürer, and Jacob Cornelisz van Oostsanen suggest that they employed people who had had cleft lips operated on as models for their works of art. Created between 1431 and 1520, the portraits show diagnostic facial profiles with a curved nasal dorsum, short columella, maxillary retrusion, and pseudoprogenia. The first medical illustration of cleft lip surgery was published in 1564 by Ambroise Paré. It was therefore late Gothic and Renaissance artists who depicted the conspicuous signs of surgically treated patients with cleft lip more than 130 years before the surgeons. Copyright 2001 The British Association of Oral and Maxillofacial Surgeons.

Comparison of drug delivery with autoinjector versus manual prefilled syringe and between three different autoinjector devices administered in pig thigh

Directory of Open Access Journals (Sweden)

Hill RL

2016-08-01

Full Text Available Robert L Hill,1,* John G Wilmot,1,* Beth A Belluscio,1 Kevin Cleary,2 David Lindisch,3 Robin Tucker,4 Emmanuel Wilson,2 Rajesh B Shukla11Meridian Medical Technologies Inc., Columbia, MD, 2Children’s National Medical Center, 3Washington DC VA Medical Center, 4Georgetown University Medical Center, Washington, DC, USA *These authors have contributed equally to this work Abstract: Parenteral routes of drug administration are often selected to optimize actual dose of drug delivered, assure high bioavailability, bypass first-pass metabolism or harsh gastrointestinal environments, as well as maximize the speed of onset. Intramuscular (IM delivery can be preferred to intravenous delivery when initiating intravenous access is difficult or impossible. Drugs can be injected intramuscularly using a syringe or an automated delivery device (autoinjector. Investigation into the IM delivery dynamics of these methods may guide further improvements in the performance of injection technologies. Two porcine model studies were conducted to compare differences in dispersion of injectate volume for different methods of IM drug administration. The first study compared the differences in the degree of dispersion and uptake of injectate following the use of a manual syringe and an autoinjector. The second study compared the spatial spread of the injected formulation, or dispersion volume, and uptake of injectate following the use of five different autoinjectors (EpiPen® [0.3 mL], EpiPen® Jr [0.3 mL], Twinject® [0.15 mL, 0.3 mL], and Anapen® 300 [0.3 mL] with varying needle length, needle gauge, and force applied to the plunger. In the first study, the autoinjector provided higher peak volumes of injectate, indicating a greater degree of dispersion, compared with manual syringe delivery. In the second study, EpiPen autoinjectors resulted in larger dispersion volumes and higher initial dispersion ratios, which decreased rapidly over time, suggesting a greater

O cuidado na perspectiva de Leonardo Boff, uma personalidade a ser (redescoberta na enfermagem El cuidado según la perspectiva de Leonardo Boff, una personalidad a ser re-descubierta en la enfermería The care according to Leonardo Boff's perspective, a personality to be rediscovered in nursing

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Luzia Wilma Santana da Silva

2005-08-01

Full Text Available Trata-se de um ensaio sobre a contribuição de Boff para o cuidado na dimensão macro, a partir de sua visão ecológica e micro no cuidado entre os seres humanos.O autor fundamenta o conceito de cuidado em questões teológicas, filosóficas, sociais e místicas, visualizando as relações humanas que perpassam pelas dimensões ecológicas: integral, social e ambiental. Objetiva compreender o cuidado abordado pelo autor para a fundamentação ontológica e epistemológica do cuidado em Enfermagem.O resultado deste, foi um despertar vigilante no sentido de visualizar e implementar estratégias de adaptação à proposta de um novo paradigma que envolve um resgate da essência do ser humano com um modo-de-ser-com-o-mundo que perpassa pelo cuidado.Trata de un ensayo sobre la contribución de Boff, para el cuidado en la dimensión macro, a partir de su visión ecológica y dimensión micro para el cuidado entre los seres humanos. El autor fundamenta el concepto del cuidado a partir de cuestiones teológicas, filosóficas, sociales y místicas; observando las relaciones humanas que atraviesan por las dimensiones ecológicas: integral, social y ambiental. El objetivo fue conocer y comprender el cuidado abordado por dicho autor para la fundamentación ontológica y epistemológica del cuidado en la Enfermería. El resultado fue un despertar vigilante en el sentido de visualizar e implementar estratégias de adaptación para la propuesta de un nuevo paradigma que envuelve un rescate en la esencia del ser humano como una manera-de-ser-con-el-mundo que pasa a través del cuidado.It is an essay about Boff's contribution for care in the macro dimension, from its ecological point of view and micro in the care among the human beings. The author bases the concept of care starting from theological, philosophical, social, and mystical questions, visualizing the human relations that move through the ecological dimension: integral, social and environmental. It aims to know/understand the care broached by the author for the ontological and epistemological fundamentation of care in nursing. The resullt of this one, has been a vigilant arouse in the sense to visualize and to implement strategies of adaptation to the proposal of a new paradigm that involves a rescue of human being essence with a manner-of-being-with-the-world that moves through the care.

The Episodic Nature of Experience: A Dynamical Systems Analysis.

Science.gov (United States)

Sreekumar, Vishnu; Dennis, Simon; Doxas, Isidoros

2017-07-01

Context is an important construct in many domains of cognition, including learning, memory, and emotion. We used dynamical systems methods to demonstrate the episodic nature of experience by showing a natural separation between the scales over which within-context and between-context relationships operate. To do this, we represented an individual's emails extending over about 5 years in a high-dimensional semantic space and computed the dimensionalities of the subspaces occupied by these emails. Personal discourse has a two-scaled geometry with smaller within-context dimensionalities than between-context dimensionalities. Prior studies have shown that reading experience (Doxas, Dennis, & Oliver, 2010) and visual experience (Sreekumar, Dennis, Doxas, Zhuang, & Belkin, 2014) have a similar two-scaled structure. Furthermore, the recurrence plot of the emails revealed that experience is predictable and hierarchical, supporting the constructs of some influential theories of memory. The results demonstrate that experience is not scale-free and provide an important target for accounts of how experience shapes cognition. Copyright © 2016 Cognitive Science Society, Inc.

Viscoelasticity of various gel films prepared from solvent-soluble constituents in coal; Sekitanchu no yobai kayoseibun kara sakuseishita shushu no gel maku no nendansei

Energy Technology Data Exchange (ETDEWEB)

Takanohashi, T.; Isoda, S.; Doi, S.; Iino, M. [Tohoku University, Sendai (Japan). Institute for Chemical Reaction Science

1996-10-28

Viscoelasticity of gel films prepared from solvent-soluble constituents without ash of coal using the mixed solvent of carbon disulfide and N-methyl-2-pyrrolidinone (CS2-NMP) was measured to study the network structure of the constituents. In experiment, Upper Freeport coal and Zao Zhuang coal were used as specimens. Viscoelasticity of various gels with different weight fractions of solvent was measured by creep measurement under a fixed load and stress-strain analysis under variable loads. In the 2nd and 3rd creep measurements, although no large changes in elastic strain and viscoelastic strain were found, viscous strain gradually decreased with an increase in viscosity. In the case of small weight fraction of solvent, small viscous strain and viscoelastic strain were found, while slightly large elastic strain was found. It was thus suggested that this elastic strain is derived from not only physical cross-linked networks by coal-solvent interaction but also those by coal-coal interaction in polymer chains of coal itself. 9 refs., 4 figs., 1 tab.

COMMITTEES: SQM2009 - 14th International Conference on Strangeness in Quark Matter SQM2009 - 14th International Conference on Strangeness in Quark Matter

Science.gov (United States)

2008-04-01

Local Organizing Committee Takeshi Kodama Chair, UFRJ Jun Takahashi Co-chair, UNICAMP Ignácio Bediaga e Hickman CBPF Eduardo Fraga UFRJ Frederique Grassi USP Yogiro Hama USP Gastão Krein IFT Erasmo Madureira Ferreira UFRJ Marcelo G. Munhoz USP Fernando Navarra USP Sandra Padula IFT Alejandro Szanto de Toledo USP César Augusto Zen Vasconcellos UFRGS International Advisory Committee Jörg Aichelin Nantes Federico Antinori Padova Tamás Biró Budapest Peter Braun-Munzinger GSI Jean Cleymans Cape Town Láaszló Csernai Bergen Timothy Hallman BNL Huan Zhong Huang UCLA Takeshi Kodama Rio de Janeiro Yu-Gang Ma Shanghai Jes Madsen Aarhus Ágnes Mócsy Pratt University Berndt Müller Duke University Grazyna Odyniec LBNL Helmut Oeschler Darmstadt Johann Rafelski Arizona Hans Georg Ritter LBNL Gunther Rolland MIT Karel Šafařík CERN Ladislav Sandor Kosice University Jack Sandweiss Yale University George S F Stephans MIT Horst Stöcker Frankfurt Larry McLerranBNL Helmut Satz Universitä Bielefeld Nu Xu LBNL Fuqiang Wang Purdue University William A. Zajc Columbia University Pengfei Zhuang Tsinghua University

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

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

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

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

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

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

[From Leonardo Da Vinci to present days; from the history of antiplague costume].

Science.gov (United States)

Kalmykov, A A; Aminev, R M; Korneev, A G; Polyakov, V S; Artebyakin, S V

2016-01-01

As a prototype of the antiplague costume can be considered a special clothing, which physicians in medieval Europe wear for protection in plague nidus. Inventor of the first antiplague costume is considered to be a French doctor Charles de Lorme (1619). Much later, in 1878, a Russian professor Pashutin V V offered to use a costume, which looked like a hermetically sealed "bag" with a special breathing device aimed at protection of medical staff. Later, professor O.I. Dogel's respirator became well-known (1889). At the beginning of 20th century as part of the antiplague costume was used a charcoal filter mask, invented by Zelinsky N.D. Requirements to order the use of modern means of individual protection when working in nidus of especially dangerous infections identified sanitary-epidemiological rules, which reflect issues of laboratory workers working and protective clothing, respiratory protection, and view, especially operation, the procedure of putting on, removing and disinfecting antiplague costumes, pneumocostumes, pneumohelmets, isolation suits, gas-protection boxes, etc.

Les voies de l’américanisation: espace américain et écriture de l’histoire au XVIe siècle

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Serge Gruzinski

2012-01-01

Full Text Available Si depuis la Renaissance l’écriture de l’histoire s’est développée sous diverses modalités dans la chrétienté latine, elle s’est métamorphosée en s’installant sur le sol américain. Alors que la discipline européenne est censée adopter ses contours « modernes » dans l’Italie du XVe siècle avec Leonardo Bruni et Flavio Biondo et qu’elle acquiert sa vitesse de croisière dans la première moitié du siècle suivant dans le sillage des Machiavel et des Guichardin, l’histoire que l’on écrit sur le sol américain, depuis le Nouveau Monde, prend une autre tournure: elle s’américanise. Cette nouvelle orientation se révèle indissociable de l’espace maritime et intercontinental dans lequel elle se déploie. Et ce n’est pas qu’une question d’échelle ou de vastitude.A partir de la época del Renacimiento, la escritura de la historia se desarrolló según varias modalidades en la cristiandad latina, sin embargo hablaremos de metamorfosis tratándose de la historia que se redactó en el suelo americano. Se suele afirmar que la disciplina en Europa adopta su forma moderna en la Italia del siglo XV con Leonardo Bruni y Flavio Biondo y adquiere su madurez en la primera mitad del siglo XVI con Maquiavelo y Guicciardini ; en cambio la historia que se escribe desde el Nuevo Mundo cobra otro cariz : se americaniza. Esta nueva orientación resulta indisociable del espacio marítimo e intercontinental en el que se formula. Y no solo es un asunto de escala ni de amplitud espacial.

Monitoring the Behavior of Emerging Contaminants in Wastewater-Impacted Rivers Based on the Use of Fluorescence Excitation Emission Matrixes (EEM).

Science.gov (United States)

Sgroi, Massimiliano; Roccaro, Paolo; Korshin, Gregory V; Vagliasindi, Federico G A

2017-04-18

This study investigated the applicability of fluorescence indexes based on the interpretation of excitation emission matrices (EEMs) by PARAFAC analysis and by selecting fluorescence intensities at a priori defined excitation/emission pairs as surrogates for monitoring the behavior of emerging organic compounds (EOCs) in two catchment basins impacted by wastewater discharges. Relevant EOC and EEM data were obtained for a 90 km stretch of the Simeto River, the main river in Sicily, and the smaller San Leonardo River, which was investigated for a 17 km stretch. The use of fluorescence indexes developed by these two different approaches resulted in similar observations. Changes of the fluorescence indexes that correspond to a group of humic-like fluorescing species were determined to be highly correlated with the concentrations of recalcitrant contaminants such as sucralose, sulfamethoxazole and carbamazepine, which are typical wastewater markers in river water. Changes of the fluorescence indexes related to tyrosine-like substances were well correlated with the concentrations of ibuprofen and caffeine, anthropogenic indicators of untreated wastewater discharges. Chemical oxygen demand and dissolved organic carbon concentrations were correlated with humic-like fluorescence indexes. The observed correlations were site-specific and characterized by different regression parameters for every collection event. Caffeine and carbamazepine showed correlations with florescence indexes in the San Leonardo River and in the alluvial plain stretch of the Simeto River, whereas sucralose, sulfamethoxazole and ibuprofen have always been well correlated in all the investigated river stretches. However, when data of different collection events from river stretches where correlations were observed were combined, good linear correlations were obtained for data sets generated via the normalization of the measured concentrations by the average value for the corresponding collection event

A dialogação: a práxis do diálogo inter-religioso no paradigma ecológico

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Paulo Agostinho Nogueira Baptista

2009-06-01

Full Text Available O artigo procura responder a um dos grandes desafios teológicos da atualidade: o diálogo inter-religioso. Trabalha a dimensão da práxis do diálogo, especialmente, no pensamento de Leonardo Boff, identificado a partir de 1992 em um novo paradigma - o paradigma ecológico. A dialogação (como práxis dialogal é pensada num grande encontro teoantropocósmico, articulando Deus, Ser humano e Natureza. Três momentos compõem essa práxis dialógica: dialogação mística ou espiritual; dialogação fraterna; e a ética da vida. Não são três momentos separados. Articulam-se e estão interconectados. Começam e terminam com a mística, expressam-se no estarcom-o-outro, na fraternidade e nos critérios de pensar e agir eticamente.Palavras-chave: Diálogo inter-religioso; Práxis; Mística; Fraternidade; Ecologia; Ética. ABSTRACTThis paper aims at responding to one of the great theological challenges at present: inter-religions dialogue. It focuses on the dimension of the praxis of dialogue, especially on Leonardo Boff´s thought, identified as of 1992 according to a new paradigm - the ecological one. Dialogue as praxis is taken into account within the scope of a wide Theo-anthropo-cosmic encounter, articulating God, the Human Being and Nature. Such dialogical praxis comprises three moments: mystical or spiritual dialogue; fraternal dialogue; and the ethics of life. Those are not three separate moments: they are articulated and interconnected. They start and end with mystics, and they express themselves in being-with-the-other in fraternity and in the criteria for ethical thought and action.Key words: Inter-religions dialogue; Praxis; Mystics; raternity; Ecology; Ethics.

More than meets the eye: Morandi's art and analytic listening.

Science.gov (United States)

Miller, J David

2011-02-01

This study of Giorgio Morandi, the great twentieth-century Italian painter, departs from the model of Freud's essay on Leonardo, in which he creates a psychodynamic hypothesis by linking the art with facts and conjecture about the artist's life. Because personal information about Morandi is remarkably scarce, we can make few connections between his art and his individual psychology. But Morandi's works can inform psychoanalysis and enhance analytic listening when we reflect on the paintings themselves, our responses to them, and the responses of art critics. This approach to his art evokes core principles of clinical theory, demonstrates the overlap between the creative process in art and analysis, and exemplifies the value of interdisciplinary study for analytic education.

Debating as an educational method to science and citizenship

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Sara Calcagnini

2007-09-01

Full Text Available If one of aims of science today is to respond to the real needs of society, it must find a new way to communicate with people and to be acquainted with their opinions and knowledge. Many science museums in Europe are adopting new ways to actively engage the public in the debate on topical scientific issues. The Museum of Science and Technology "Leonardo da Vinci" in Milan (partner of the SEDEC project has thus experimented some formats for dialogue with teachers and with the public in general. Our experience shows that museums can be places where science and the public on the one hand and democracy on the other meet.

Dreaming and Neuroesthetics

Science.gov (United States)

Barcaro, Umberto; Paoli, Marco

2015-01-01

This paper, which is limited to the art of painting, aims to support the idea that a substantial insertion of concepts and methods drawn on dream psychology and dream neuroscience can contribute to the advancements of Neuroesthetics. The historical and scientific reasons are discussed that have determined the so far poor role played by the dream phenomenon in the developments of Neuroesthetics. In the light of recent advancements in psychophysiological research, a method of analyzing artistic products is proposed that is based on the recognition of precise features proper of the dreaming experience. Four examples are given for application of this method, regarding works by Giorgione, Leonardo da Vinci, Vermeer, and Millais, respectively. PMID:26157373

Book Review

Science.gov (United States)

Harrison, Chris H.

2017-11-01

Have you ever been asked what you do for a living at a dinner party and had to say, "underwater acoustics", whereupon the questioner replies, "Oh, I shouldn't think there's much call for that - a bit specialised, isn't it?!"? "Well …", you splutter, "actually it's an important field of physics started up by Lord Rayleigh, or possibly even Leonardo da Vinci." One has to admit that it's probably a bit of a niche market. One also has to admit that in the 20th Century the interest was predominantly in defence where one aim was to be able to detect nuclear submarines, which were otherwise invisible, but the other aim was to help submarines be undetectable!.

Experimental and Computational Techniques in Soft Condensed Matter Physics

Science.gov (United States)

Olafsen, Jeffrey

2010-09-01

1. Microscopy of soft materials Eric R. Weeks; 2. Computational methods to study jammed Systems Carl F. Schrek and Corey S. O'Hern; 3. Soft random solids: particulate gels, compressed emulsions and hybrid materials Anthony D. Dinsmore; 4. Langmuir monolayers Michael Dennin; 5. Computer modeling of granular rheology Leonardo E. Silbert; 6. Rheological and microrheological measurements of soft condensed matter John R. de Bruyn and Felix K. Oppong; 7. Particle-based measurement techniques for soft matter Nicholas T. Ouellette; 8. Cellular automata models of granular flow G. William Baxter; 9. Photoelastic materials Brian Utter; 10. Image acquisition and analysis in soft condensed matter Jeffrey S. Olafsen; 11. Structure and patterns in bacterial colonies Nicholas C. Darnton.

ASSURING QUALITY IN FARM ANIMAL WELFARE CURRICULA: THE CASE OF WELFOOD CURRICULA

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EVANGELIA N. SOSSIDOU

2009-10-01

Full Text Available The aim of the present study is to analyze virtual learning environments and to provide a framework for assuring quality in farm animal welfare curricula. The framework is constructed according to the experimental learning for a case study developed in the context of the Leonardo da Vinci Community Vocational Training Action Pilot Project entitled “WELFOOD-Promoting quality assurance in animal welfare-environment-food quality interaction studies through upgraded e-Learning”. WELFOOD addressed objectives such as improvement and competencies of the skills in vocational training to promote employability and facilitate integration and reintegration in terms of capabilities and knowledge, needed for improved technologies in animal husbandry and food industry.

Optical spectroscopy of ancient paper and textiles

International Nuclear Information System (INIS)

Missori, M.

2016-01-01

Ancient paper and textiles represent a striking example of optically inhomogenous materials whose optical responses are strongly governed by scattering effects. In order to recover the absorption coefficient from non-invasive and nondestructive reflectance measurements a specific approach based on Kubelka-Munk two-flux theory must be applied. In this way quantitative chemical information, such as chromophores concentration, can be obtained, as well as quantitative spectra of additional substances such as pigments or dyes. Results on a folio of the Codex on the Flight of Birds by Leonardo da Vinci and a linen cloth dated back to 1653 and called the Shroud of Arquata, a copy of the Shroud of Turin, will be presented.

Municipal Development Plan, Acerra (Naples

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Luigi Benevolo

2014-02-01

Full Text Available The Municipal Development Plan (Piano Urbanistico Comunale - PUC of Acerra has been drafted by a group of young professionals and researchers, led by Leonardo Benevolo, in accordance with the guidelines laid out by Regional Law no. 16 of 2004. Its complex drafting process was compressed into a brief, nine-month period in 2008 and 2009, at the end of which its initial adoption (or “predisposizione” – “preparation” or “predisposition” – in Italian legal terms was ratified by the municipal council. This article reconstructs the key moments, illustrating the main elements of the plan and how the debate about it took shape both inside and outside the municipal administration.

WHAT DETERMINES YOU TO BE AN ENTREPRENEUR?

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Eliza-Olivia LUNGU

2014-04-01

Full Text Available The paper studies the entrepreneurial motivation of adults from five EU countries: Romania, Greece, Spain, Denmark and Belgium. The selected countries are involved as partners in a Leonardo da Vinci project, intended to adapt a board game into serious game for improving the entrepreneurial skills. Based on the data provided by the Global Entrepreneurship Monitor we determine a series of factors, for each country that influences the decision of a young people/adult to start a new venture. The data are collected through an annual survey, conducted on a representative sample of the adult population between 18-64 years for every country (at least 2,000 per country. We develop our analysis on the 2010 database.

[Outcomes of pregnancy among women with alpha-thalassemia minor: A retrospective study of Pingguo county in Guangxi Zhuang Autonomous Region].

Science.gov (United States)

Pang, T; Guo, X F; Zhou, Y H; Qiu, X Q; Li, S; Liang, Z R; Qin, X L; Li, K H; Zeng, X Y

2017-12-10

Objective: To investigate the association between the value of α-thalassemia minor and the outcomes in pregnant women. Methods: A total of 445 pregnant women with α-thalassemia minor were selected as thalassemia group in the Pingguo County Maternal and Child Health Hospital of Guangxi from January 2011 to December 2015, with ratio of 1∶4 healthy pregnant women was randomly recruited as non-thalassemia group. Clinical characteristics and pregnancy outcomes of the two groups were retrospectively analyzed using methods including t test, χ (2) test, and logistic regression model and ROC curve. Results: There were no significant differences noticed in factors as age, BMI, gestational age and educational level of the two groups. Hemoglobin of the thalassemia group was significantly lower than that of the non-thalassemia group ( P pregnancy outcomes was comparable on parameters as preterm birth, stillbirth, macrosomia. Findings from the unconditional logistic regression showed that pregnancy complicated with α-thalassemia minor appeared a risk for both newborns with low birth weight (a OR =2.29, 95% CI : 1.32-3.95) and small for date infant (a OR = 2.11, 95% CI : 1.16-3.84). The ROC curve showed that α-thalassemia minor combined with multiple indicators presented a certain predictive value on neonatal birth weight. Conclusion: Pregnancy complicated with α-thalassemia minor was likely to increase the risk of birth weight loss in newborns, suggesting that prenatal care for pregnant women with thalassemia be strengthened, in order to reduce the incidence of adverse pregnancy outcomes.

Association of Hypoxia-Inducible Factor-2 Alpha Gene Polymorphisms with the Risk of Hepatitis B Virus-Related Liver Disease in Guangxi Chinese: A Case-Control Study.

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Liling Huang

Full Text Available Hypoxia-inducible factor-2 alpha (HIF-2a plays a major role in the progression of disease, although the role of HIF-2α gene polymorphisms in hepatitis B virus (HBV-related diseases remains elusive. The aim of this study is to determine whether HIF-2a rs13419896 and rs6715787 single-nucleotide polymorphisms (SNPs are associated with susceptibility to chronic hepatitis B (CHB, liver cirrhosis (LC, or hepatocellular carcinoma (HCC.A case-control study of 107 patients with CHB, 83 patients with LC, 234 patients with HCC, and 224 healthy control subjects was carried out, and the HIF-2a rs13419896 and rs6715787 SNPs were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP.No significant differences were observed in the genotype or allele frequency of two HIF-2a SNPs between the cases and controls (all p>0.05. However, in subgroup analysis by gender, the HIF-2a rs13419896 GA and AA genotypes were significantly associated with a risk of CHB (odds ratio [OR] = 3.565, 95% confidence interval [CI] = 1.123-11.314, p = 0.031 and OR = 12.506, 95% CI = 1.329-117.716, p = 0.027 in females, and the A allele of rs13419896 was associated with a risk of CHB (OR = 2.624, 95% CI = 1.244-5.537, p = 0.011 and LC (OR = 2.351, 95% CI = 1.002-5.518, p = 0.050 in females. The rs6715787 CG genotype polymorphism may contribute to a reduced risk of LC in the Guangxi Zhuang Chinese population (OR = 0.152, 95% CI = 0.028-0.807, p = 0.027, as determined via subgroup analysis by ethnicity. Moreover, binary logistic regression analyses that were adjusted by drinking status indicated that the AA genotype of rs13419896 may contribute to an increased risk of LC in the non-alcohol-drinking population (OR = 3.124, 95% CI = 1.091-8.947, p = 0.034. In haplotype analysis, GG haplotype was significantly associated with a reduced risk of LC (OR = 0.601, 95% CI = 0.419-0.862, p = 0.005.The HIF-2a rs13419896 polymorphism is associated with an increased

Fibonacci’s Computation Methods vs Modern Algorithms

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Ernesto Burattini

2013-12-01

Full Text Available In this paper we discuss some computational procedures given by Leonardo Pisano Fibonacci in his famous Liber Abaci book, and we propose their translation into a modern language for computers (C ++. Among the other we describe the method of “cross” multiplication, we evaluate its computational complexity in algorithmic terms and we show the output of a C ++ code that describes the development of the method applied to the product of two integers. In a similar way we show the operations performed on fractions introduced by Fibonacci. Thanks to the possibility to reproduce on a computer, the Fibonacci’s different computational procedures, it was possible to identify some calculation errors present in the different versions of the original text.

La investigación sobre fisiognomía y expresión de las pasiones: objetivos y metodología

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Albero Muñoz, María del Mar

2008-12-01

Full Text Available The search of the emotional expressivity in the arts during the 17th century, guided both artists and theorist to the analysis of the expression of the passions, the physiognomy and the appearance of emotions. This subject had been developed into the artistic literature from the ancient times until this century by writers like PseudoAristotle, Alberti, Leonardo or Gaurico. This study analyzes the research methods applied to know the influence of these theories into the Spanish XVII century artistic literature. Mainly in the study of the treatises wrote by Vicente Carducho, Francisco Pacheco and Jusepe Martinez, showing the different paths used by them in order to guide other painters to illustrate the emotions of the soul.

Les voies de l’américanisation: espace américain et écriture de l’histoire au XVIe siècle

OpenAIRE

Gruzinski, Serge

2013-01-01

Si depuis la Renaissance l’écriture de l’histoire s’est développée sous diverses modalités dans la chrétienté latine, elle s’est métamorphosée en s’installant sur le sol américain. Alors que la discipline européenne est censée adopter ses contours « modernes » dans l’Italie du XVe siècle avec Leonardo Bruni et Flavio Biondo et qu’elle acquiert sa vitesse de croisière dans la première moitié du siècle suivant dans le sillage des Machiavel et des Guichardin, l’histoire que l’on écrit sur le sol...

Online labs and the MARVEL experience

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Dieter Mueller

2005-06-01

Full Text Available MARVEL is a Leonardo da Vinci project that provides a framework to analyse the pedagogic effectiveness of online labs in various heterogeneous areas that include solar energy, robotics, electronics and electro-pneumatics. It is also used as a test bench to compare the implementation of purely remote labs, where all devices are real, versus mixed-reality environments, where real devices work together with simulation models. This paper describes the basic concepts underlying the implementation of such online labs and presents two case studies (which are openly available to the public. A final section discusses the main pedagogical implications of online labs and presents the research directions that are being considered as a follow-up from this project.

Florence, 1300-1301. Compagni, Villani (and their readers in Santa Trìnita and «cacciare con molta offensione» (If 6, 66

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Elisa Brilli

2017-05-01

Full Text Available The essay examines the accounts about the “white biennium” 1300-1301 provided by Dino Compagni and Giovanni Villani, as well as by their readers and modern interpreters (Leonardo Bruni, Niccolò Machiavelli and Scipione Ammirato up to Isidoro Del Lungo and Robert Davidsohn. The scrutiny and the comparison with other minor chronicles of the 14th century (see «Reti Medievali - Rivista», 17 [2016], 2, 113-151 leads to a new interpretation of these witnesses, which explains the evasiveness in the account by Dino Compagni and provides not only a new reading of the overall sense of this historical phase but also of the specific sense of Dante’s reference to these facts in the canto VI of the Inferno.

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

Science.gov (United States)

Dealtry, Richard; Howard, Keith

2008-01-01

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

Automovimiento y crecimiento como característica de la vida según Leonardo Polo

OpenAIRE

Sanguineti, J.J. (Juan José)

2009-01-01

Este artículo analiza las caracterizaciones de la vida como autopoiesis, autoorganización, sistema complejo organizado, en términos de la visión de Polo de la vida como praxis orgánica. Se consideran especialmente las notas del automovimiento y el crecimiento. El viviente puede entenderse a la luz de la concausalidad como sustancia "más que hilemórfica" en cuanto la forma viviente incorpora el movimiento de un modo intrínseco.

A method for the estimation of the enthalpy of formation of mixed oxides in Al2O3-Ln2O3 systems

International Nuclear Information System (INIS)

Vonka, P.; Leitner, J.

2009-01-01

A new method is proposed for the estimation of the enthalpy of formation (Δ ox H) of various Al 2 O 3 -Ln 2 O 3 mixed oxides from the constituent binary oxides. Our method is based on Pauling's concept of electronegativity and, in particular, on the relation between the enthalpy of formation of a binary oxide and the difference between the electronegativities of the oxide-forming element and oxygen. This relation is extended to mixed oxides with a simple formula given for the calculation of Δ ox H. The parameters of this equation were fitted using published experimental values of Δ ox H derived from high-temperature oxide melt solution calorimetry. Using our proposed method, we obtained a standard deviation (σ) of 4.87 kJ mol -1 for this data set. Taking into account regularities within the lanthanide series, we then estimated the Δ ox H values for Al 2 O 3 -Ln 2 O 3 mixed oxides. The values estimated using our method were compared with those obtained by Aronson's and Zhuang's empirical methods, both of which give significantly poorer results. - Graphical abstract: Enthalpy of formation of Ln-Al-O oxides from the constituent binary ones.

[Professor CHEN Xiuhua's experience in the treatment of atopic dermatitis].

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Quan, Xiaohong; Li, Shuqian; Li, Ying

2017-03-12

Professor CHEN Xiuhua 's clinical experiences were introduced in the intervention on atopic dermatitis with external therapies of TCM acupuncture. On the basis of the theory as cultivating the earth and clearing the heart from professor CHEN Dacan and in terms of the disease stages and skin lesion characteristics, as well as in consideration of syndrome differen-tiation, the acupoints for strengthening the spleen and clearing heart fire are selected, such as Zhongwan (CV 12), Daheng (SP 15), Shuifen (CV 9), Tianshu (ST 25), Neiguan (PC 6) and Quchi (LI 11). For the repair of skin lesion, the integration of Chinese and western medicine is used, with the internal application and external use of Chinese herbal medicines involved. The topical ointments are selected rationally. The self-blood therapy is used with acupuncture, bleeding therapy and acupoint injection applied in combination on the basis of the theory of TCM zangfu organs and modern immunological mechanism, which stimulates the nonspecific immune response in the body and strengthens acupoint stimulus effects. Medical thread therapy of Guangxi Zhuang medicine is used in moxibustion for skin damage, which effectively stops itching and promotes wound healing and skin repair.

Mid-Miocene C4 expansion on the Chinese Loess Plateau under an enhanced Asian summer monsoon

Science.gov (United States)

Dong, Jibao; Liu, Zhonghui; An, Zhisheng; Liu, Weiguo; Zhou, Weijian; Qiang, Xiaoke; Lu, Fengyan

2018-06-01

Atmospheric CO2 starvation, aridity, fire and warm season precipitation have all been proposed as major contributors to C4 plant expansion during the Late Miocene. However, the driving factors responsible for the distribution of C4 plants in the early and mid-Miocene still remain enigmatic. Here we report pedogenic carbon and oxygen isotope data (δ13Cpedo, δ18Opedo), along with magnetic susceptibility (MS) results, from the Zhuang Lang drilling core on the Chinese Loess Plateau (CLP). Elevated δ13Cpedo values (>-5‰) signal a prominent C4 expansion and substantially increased δ18Opedo and MS values indicate enhanced Asian summer monsoon (ASM) precipitation. Both of these conditions are observed during the Mid-Miocene Climatic Optimum (MMCO), 14.5-17 million years ago. The marked increase in C4 plants, associated with warm temperatures and increased precipitation, strongly suggests the control of an enhanced ASM on C4 expansion on the CLP during the MMCO. This finding contrasts with the late-Miocene C4 expansion associated with cooling and drying conditions observed in low latitudes and argues for regionally specific control of C4 plant distribution/expansion.

Ultra-wideband circular-polarization converter with micro-split Jerusalem-cross metasurfaces

Science.gov (United States)

Gao, Xi; Yu, Xing-Yang; Cao, Wei-Ping; Jiang, Yan-Nan; Yu, Xin-Hua

2016-12-01

An ultrathin micro-split Jerusalem-cross metasurface is proposed in this paper, which can efficiently convert the linear polarization of electromagnetic (EM) wave into the circular polarization in ultra-wideband. By symmetrically employing two micro-splits on the horizontal arm (in the x direction) of the Jerusalem-cross structure, the bandwidth of the proposed device is significantly extended. Both simulated and experimental results show that the proposed metasurface is able to convert linearly polarized waves into circularly polarized waves in a frequency range from 12.4 GHz to 21 GHz, with an axis ratio better than 1 dB. The simulated results also show that such a broadband and high-performance are maintained over a wide range of incident angle. The presented polarization converter can be used in a number of areas, such as spectroscopy and wireless communications. Project supported by the National Natural Science Foundation of China (Grant Nos. 61461016 and 61661012), the Natural Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant Nos. 2014GXNSFAA118366, 2014GXNSFAA118283, and 2015jjBB7002), and the Innovation Project of Graduate Education of Guilin University of Electronic Technology, China (Grant No. 2016YJCX82).

Methodological study on exposure date of Tiankeng by AMS measurement of in situ produced cosmogenic {sup 36}Cl

Energy Technology Data Exchange (ETDEWEB)

Dong Kejun [China Institute of Atomic Energy, P.O. Box 275(50), Beijing 102413 (China); Li Shizhuo [China Institute of Atomic Energy, P.O. Box 275(50), Beijing 102413 (China); CNNC China North Nuclear Fuel Company Ltd., Baotou 014035 (China); He Ming [China Institute of Atomic Energy, P.O. Box 275(50), Beijing 102413 (China); Sasa, Kimikazu [Tandem Accelerator Complex, University of Tsukuba, Tsukuba, Ibaraki 305-8577 (Japan); Matsushi, Yuki [Disaster Prevention Research Institute, Kyoto University (Japan); Huang Baojian [Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004 (China); Ruan Xiangdong; Guan Yongjing [College of Physics Science and Technology, Guangxi University, Nanning 530004 (China); Takahashi, Tsutomu [Tandem Accelerator Complex, University of Tsukuba, Tsukuba, Ibaraki 305-8577 (Japan); Sueki, Keisuke [Graduate School of Pure and Applied Sciences, University of Tsukuba (Japan); Li Chaoli; Wu Shaoyong [China Institute of Atomic Energy, P.O. Box 275(50), Beijing 102413 (China); Wang Xianggao [China Institute of Atomic Energy, P.O. Box 275(50), Beijing 102413 (China); Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004 (China); Shen Hongtao [China Institute of Atomic Energy, P.O. Box 275(50), Beijing 102413 (China); College of Physics and Technology, Guangxi Normal University, Guilin 541004 (China); Nagashima, Yasuo [Tandem Accelerator Complex, University of Tsukuba, Tsukuba, Ibaraki 305-8577 (Japan); Jiang Shan, E-mail: jiangs@ciae.ac.cn [China Institute of Atomic Energy, P.O. Box 275(50), Beijing 102413 (China)

2013-01-15

Tiankeng is a typical Karst relief of the late Quaternary Period. Studies on the exposure ages of Tiankeng are very important in geographical research to elucidate the formation condition, the developing process, and the features of biological species. {sup 36}Cl on the surface layer of the rupture cross-section of Tiankeng is largely produced by cosmogenic high-energy neutron induced reactions {sup 40}Ca(n, {alpha}p) and {sup 39}K(n, {alpha}), and has accumulated since the formation of the Tiankeng. Low-energy neutron reaction {sup 35}Cl(n, {gamma}) contributes a small portion of {sup 36}Cl. In this work, the concentration of the cosmogenic {sup 36}Cl in rock samples taken from Dashiwei Tiankeng, Leye County, Guangxi Zhuang Autonomous Region, China, was measured jointly by Accelerator Mass Spectrometry (AMS) laboratories of CIAE and University of Tsukuba in an effort to estimate the formation time (or exposure age) of the Tiankeng. The results show that the exposure time of Da Shiwei Tiankeng is about 26 {+-} 9.6 ka (without erosion correction). The sampling strategy and procedures, experimental set-up, and preliminary results will be presented in detail.

Characterization of fecal microbiota across seven Chinese ethnic groups by quantitative polymerase chain reaction.

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Lai-yu Kwok

Full Text Available The human gut microbiota consists of complex microbial communities, which possibly play crucial roles in physiological functioning and health maintenance. China has evolved into a multicultural society consisting of the major ethnic group, Han, and 55 official ethnic minority groups. Nowadays, these minority groups inhabit in different Chinese provinces and some of them still keep their unique culture and lifestyle. Currently, only limited data are available on the gut microbiota of these Chinese ethnic groups. In this study, 10 major fecal bacterial groups of 314 healthy individuals from 7 Chinese ethnic origins were enumerated by quantitative polymerase chain reaction. Our data confirmed that the selected bacterial groups were common to all 7 surveyed ethnicities, but the amount of the individual bacterial groups varied to different degree. By principal component and canonical variate analyses of the 314 individuals or the 91 Han subjects, no distinct group clustering pattern was observed. Nevertheless, weak differences were noted between the Han and Zhuang from other ethnic minority groups, and between the Heilongjiang Hans from those of the other provinces. Thus, our results suggest that the ethnic origin may contribute to shaping the human gut microbiota.

Forensic applications of {sup 14}C at CIRCE

Energy Technology Data Exchange (ETDEWEB)

Marzaioli, F., E-mail: fabio.marzaioli@unina2.it [CIRCE, Dipartimento di Scienze Ambientali, Seconda Universita degli Studi di Napoli and INNOVA, Via Vivaldi 43, 81100 Caserta (Italy); Fiumano, V., E-mail: vittoriofiumano85@libero.it [CIRCE, Dipartimento di Scienze della Vita, Seconda Universita degli Studi di Napoli and INNOVA, Via Vivaldi 43, 81100 Caserta (Italy); Capano, M., E-mail: manuela.capano@unina2.it [CIRCE, Dipartimento di Studio delle Componenti Culturali del Territorio, Seconda Universita degli Studi di Napoli and INNOVA, Piazza S. Francesco, 81055 Santa Maria Capua Vetere, Caserta (Italy); Passariello, I., E-mail: isabella.passariello@unina2.it [CIRCE, Dipartimento di Scienze Ambientali, Seconda Universita degli Studi di Napoli and INNOVA, Via Vivaldi 43, 81100 Caserta (Italy); Cesare, N.De., E-mail: nicola.decesare@unina2.it [CIRCE, Dipartimento di Scienze della Vita, Seconda Universita degli Studi di Napoli and INNOVA, Via Vivaldi 43, 81100 Caserta (Italy); Terrasi, F., E-mail: filippo.terrasi@unina2.it [CIRCE, Dipartimento di Scienze Ambientali, Seconda Universita degli Studi di Napoli and INNOVA, Via Vivaldi 43, 81100 Caserta (Italy)

2011-12-15

The decreasing trend of the radiocarbon pulse produced during the atmospheric tests of nuclear weapons (bomb-carbon) coupled with high sensitivity accelerator mass spectrometry (AMS) measurements, drastically increased the precision of radiocarbon age determinations since the second part of the sixties, allowing the application of radiocarbon AMS to a wide range of studies previously not directly involving conventional radiocarbon dating (i.e. food authenticity, forensic, biochemistry). In the framework of authenticity evaluation of artworks, high precision radiocarbon ({sup 14}C) AMS measurements ({Delta}R/R < 0.3%) reduce the conventional uncertainty of the dating to few decades, allowing precise age estimation of materials containing carbon (C). The Centre for Isotopic Research on Cultural and Environmental heritage (CIRCE) during its activity on AMS {sup 14}C dating achieved high precision measurements opening the opportunity to these kinds of applications. This paper presents the main results obtained from radiocarbon measurements on a set of bone samples analyzed for the determination of the post-mortem interval in the framework of an unsolved case investigated by the Rome prosecutor office. The chronological characterization of the wooden support of the 'Acerenza portrait' is also presented with the aim to evaluate its age and to further investigate the possibility to attribute this artwork to Leonardo da Vinci. Bomb-{sup 14}C dating on the lipid and collagen fractions of bones allows the evaluation of the year of the death of the individuals by means of ad hoc calibration data sheet with the typical few years precision and difference between collagen apparent age and the year of death appeared in agreement with the age of one individual estimated by dating of tooth collagen. Conventional radiocarbon dating on both wood and wood extracted cellulose leads to an estimation of the portrait wood board age (2{sigma}) of 1459-1524 AD (57% relative

Newton de Macedo : da filosofia da história para a sociologia

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Pedro Baptista

2009-01-01

Full Text Available In the present text we present the culminant place of sociology in the Reform of the Higher Education in Philosophy attempted by Leonardo Coimbra in 1919, the time in which, as Minister for Instruction, he creates the Faculdade de Letras da Universidade do Porto (FLUP. Such a position is inscribed in the relevant interest showed for sociology, not only following the positivist tradition of the eighteen hundreds, but especially of the Portuguese Renaissance, movement that aspired to rise above it. Thus, we inform that, although the project of inscription of sociology in the philosophy’s curriculum of FLUP did not take place for political reasons, authors such as Georg Simmel were studied in detail, mainly after the critique of the philosophy of history. Newton de Macedo, historian and philosopher, is his main scholar: he shows how history as a science tends to progress from the level of historiography to the level of sociology, since historic facts should be inscribed in the category of social facts. Besides his attention to Vieira de Almeida’s scheme on historic causality, where he identi?es three phases of research, Newton de Macedo develops a critique of the naturalist and scientist visions of social phenomena produced by different positivist authors. On the other hand, when discussing the sociological thought of Durkheim, also well known in the primitive FLUP, he seems to identify himself with it. Focused on the ruins of post-war, Newton, as well as Leonardo Coimbra, produces a very critical reading of positivism (not without considering that it was a good epistemological standing point for work and has as main purpose the research for new bases for the construction of new values needed to ?ll the dangerous moral void left by belligerent barbarity. The text reveals the exceptional international and up-to-date openness of FLUP (1919-1931 in a national philosophical academic panorama closed to contemporary novelty and to the world

Spigolature toponomastiche carsiche

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Mario Doria

1984-12-01

Full Text Available Denominazione di cui si ignora l'"origine", annota Carlo Chersi nella sua accurata guida Itinerari del Carso triestino (giunta postuma alla sua settima edizione, Trieste 1984, a proposito di Coste, nome di un colle abbastanza alto(m. 410 che si eleva alle spalle di Sales (Salež, nella catena cui appar­ tengono anche il Monte San Leonardo (Sv. Leonard, a. N. 0., e la Vetta Grande (Ostri Vrh aS. E., ed è chiamato oggi local­ mente Gradec (in quanto sede di castelliere, cfr. A. M. Radmilli ASPP 193-75, p. 126 e già C. Marchesetti Castellieri, Trieste 1903, p. 37 o anche (Monte Dernovesch (Dernovesh, grafie te­ deschizzanti di uno slov. (dial. Dernovcah (dall'agg. drnovec "provvisto di zolle erbose".

The extent of man from Vitruvius to Marfan.

Science.gov (United States)

Schott, G D

It is frequently stated that patients with Marfan's syndrome have an arm span greater than height. This implies a characteristic different from the proportions in normal adult man, in whom span and height are often thought to be equal. Such equality of span and height, which allows man to be portrayed within a square, has been a widely held concept, immortalised by Leonardo da Vinci, that dates from the Roman Vitruvius. However, in the past two hundred years, anthropometry has shown that span exceeds height in 59-78% of normal adult white men. Thus not only is the classic concept of equality of span and height generally incorrect, but also a span greater than height cannot be considered characteristic of Marfan's syndrome. Paradoxically, in some affected individuals, Vitruvian equality of height and span may occur.

y vida cotidiana

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Ma. Begoña Carretero-Gómez

2007-01-01

Full Text Available En este artículo describimos de forma resumida el trabajo interdisciplinar, que formando parte de un proyecto de innovación educativa, han llevado a cabo un grupo de profesores de enseñanza secundaria pertenecientes al I.E.S. Isabel la Católica. El eje central del mismo ha sido la figura de Leonardo da Vinci maestro en numerosas disciplinas: pintor, escultor, cocinero, inventor etc. Con él hemos querido contagiar a nuestros alumnos de su incansable afán por conocer y aprender. Se han realizado numerosas actividades (talleres, proyección de películas, recetas de cocina etc. que destacan por la interconexión entre distintas áreas del saber y por la participación mayoritaria tanto del profesorado como del alumnado del centro.

Management development in Denmark

DEFF Research Database (Denmark)

Leth, Camilla; Hjalager, Anne-Mette; Holt Larsen, Henrik

2003-01-01

This report contains the major results from a study of management development in Danishorganizations. The study is part of a European research project with participation ofDenmark, the U.K, France, Norway, Rumania, Spain, and Germany. The project is part ofthe so-called Leonardo program the purpose...... of which is to further cross-countrycompetence development and collaboration within the European educational sector. Thefirst phase of the project is a quantitative interview study of one hundred organizations ineach of the participating countries. The second phase consists in qualitative case studiesin...... be published in books, journals and newspaper articles. Hopefully the findings of thelarge European project will thus affect the way in which educational institutions andorganizations manage the `Europeanization' of management development.The present report solely describes significant findings from...

Morphogenesis of Kinetic Reciprocal Frames

DEFF Research Database (Denmark)

Parigi, Dario; Sassone, Mario

2011-01-01

Kinetic structures in civil engineering and architecture gained considerable more attention in the very recent years as a practical solution to face time dependant performances. Realized projects are mostly bridges, retractable roofs, while in architecture the trend follows the category of intera......Kinetic structures in civil engineering and architecture gained considerable more attention in the very recent years as a practical solution to face time dependant performances. Realized projects are mostly bridges, retractable roofs, while in architecture the trend follows the category...... (RF) were studied in the past as a practical solution to span distances with shorter elements. Leonardo da Vinci discovered interesting RF patterns and studied three dimensional arch structures for bridges. RF are generally defined as structures that forms closed circuits of forces, and where elements...

PSYCHOANALYSIS AND THE ARTS: THE SLIPPERY GROUND OF APPLIED ANALYSIS.

Science.gov (United States)

Abella, Adela

2016-01-01

The ways in which today's psychoanalysts approach art closely follow the avenues opened by Freud a hundred years ago. Drawing mainly on Freud's studies on Jensen's Gradiva (1907) and on Leonardo da Vinci (1910a), the author examines the main paradigms he used in discussing artistic activity, including his doubts and hesitations. Present-day approaches to art are then examined via a discussion of the advantages and pitfalls of psychobiography, of the case study, and of textual approaches. The author makes a case for the type of interdisciplinary dialogue in which the goal is to establish a cross-fertilization between psychoanalysis and other fields of knowledge while striving to avoid hypersaturation of a work of art in order to foster expansion of the mind. © 2016 The Psychoanalytic Quarterly, Inc.

Mirrors in Russian Decadent and Symbolist Prose: Valery Briusov and Dmitry Merezhkovsky

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Kirsten Lodge

2010-06-01

Full Text Available Examining mirror imagery in the prose works “In the Mirror” by Valery Briusov and The Resurrected Gods: Leonardo da Vinci by Dmitry Merezhkovsky, both published in 1902, this article situates the Russian Decadent and Symbolist associations of the mirror in the pan-European literary and philosophical context. The mirror constitutes the threshold of manifold oppositions, including life and art, life and death, and reality and dream or imagination. It is a realm of alternative reality, magical and seductive, as in Briusov’s story, or potentially both demonic and divine, as in Merezhkovsky’s novel. In accordance with the Romantic tradition as well as Decadent and Symbolist iconography, mirror imagery in these two works is inseparable from questions of the nature of art and the power of artistic creation.

Apie neklasikinę filosofiją neklasikiniu stiliumi : (Leonardos Jekentaitės kūrybos interpretacija)

OpenAIRE

Kuzmickas, Bronislovas

2009-01-01

The paper is dedicated to the interpretation of the works of Leonarda Jekentaitė (1946–2008), in which she analyses the views of non-classical philosophers. They speak about the reality and the human existence and the style of their writings is more artistic than theoretical. The first article is about the philosophy of Kant. Although it has been two hundred years since this thinker, the main ideas of his anthropology continue to be urgent, makes us to go back to the categorical imperative of...

The thread of depression throughout the life and works of Leo Tolstoy.

Science.gov (United States)

Anargyros-Klinger, Annie

2002-04-01

Tolstoy, the author of two masterpieces, War and Peace and Anna Karenina, remains a writer of genius. Yet, after writing War and Peace, his existence had been torn apart by a serious depression. This depression, which was melancholic in character, almost destroyed him and, once he had finished Anna Karenina, led him to want to renounce not only sexuality but also literary creation and material possessions. Through examining Tolstoy's life and work, the author tries to uncover the underground paths of this depression, which emerged brutally in the middle of his life, and to understand why his creative genius dried up. Like Leonardo da Vinci, Tolstoy turned away from his artistic work, declaring that 'art is not only useless but even harmful', and thereafter devoted himself to philosophical, political and religious writings. These new sublimations would help him to recover his health.

A Moodle extension to book online labs

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Antonio C. Cardoso

2005-11-01

Full Text Available The social constructivist philosophy of Moodle makes it an excellent choice to deliver e-learning contents that require collaborative activities, such as those that are associated with online labs. In the case of online labs that enable web access to real devices (remote workbenches, access time should be reserved beforehand. A booking tool will avoid access conflicts and at the same time will help the students to organise their time and activities. This paper presents a Moodle extension that was developed within the Leonardo da Vinci MARVEL project, with the objective of meeting this requirement. The booking tool presented enables resource sharing in general and may be used to organise access to any type of scarce resources, such as to online labs and to the videoconferencing rooms that are needed to support collaborative activities.

VINCI: the VLT Interferometer commissioning instrument

Science.gov (United States)

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

2000-07-01

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

A Matemática do pega-pega

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Angela Soldatelli

2016-12-01

Full Text Available Provavelmente, todos já brincaram de pega-pega e cometeram o erro de interceptar o alvo, ao invés de moverem-se em linha reta em direção a ele. Então, se o alvo repentinamente mudar de direção, o perseguidor ficará mais distante do alvo do que ficaria se estivesse correndo diretamente para ele. Neste artigo, discute-se modelos de curvas de perseguição, um clássico problema matemático que remonta a Leonardo da Vinci. Uma curva de perseguição é o caminho tomado por um objeto P que está perseguindo um segundo objeto A no espaço bidimensional, de tal maneira que o vetor-velocidade de P, em cada momento, visa à posição atual do alvo A.

2D imaging and 3D sensing data acquisition and mutual registration for painting conservation

Science.gov (United States)

Fontana, Raffaella; Gambino, Maria Chiara; Greco, Marinella; Marras, Luciano; Pampaloni, Enrico M.; Pelagotti, Anna; Pezzati, Luca; Poggi, Pasquale

2005-01-01

We describe the application of 2D and 3D data acquisition and mutual registration to the conservation of paintings. RGB color image acquisition, IR and UV fluorescence imaging, together with the more recent hyperspectral imaging (32 bands) are among the most useful techniques in this field. They generally are meant to provide information on the painting materials, on the employed techniques and on the object state of conservation. However, only when the various images are perfectly registered on each other and on the 3D model, no ambiguity is possible and safe conclusions may be drawn. We present the integration of 2D and 3D measurements carried out on two different paintings: "Madonna of the Yarnwinder" by Leonardo da Vinci, and "Portrait of Lionello d'Este", by Pisanello, both painted in the XV century.

Artistic talent in dyslexia--a hypothesis.

Science.gov (United States)

Chakravarty, Ambar

2009-10-01

The present article hints at a curious neurocognitive phenomenon of development of artistic talents in some children with dyslexia. The article also takes note of the phenomenon of creating in the midst of language disability as observed in the lives of such creative people like Leonardo da Vinci and Albert Einstein who were most probably affected with developmental learning disorders. It has been hypothesised that a developmental delay in the dominant hemisphere most likely 'disinhibits' the non-dominant parietal lobe to unmask talents, artistic or otherwise, in some such individuals. The present hypothesis follows the phenomenon of paradoxical functional facilitation described earlier. It has been suggested that children with learning disorders be encouraged to develop such hidden talents to full capacity, rather than be subjected to overemphasising on the correction of the disturbed coded symbol operations, in remedial training.

Micro-manufacturing technologies and their applications a theoretical and practical guide

CERN Document Server

Shipley, David

2017-01-01

This book provides in-depth theoretical and practical information on recent advances in micro-manufacturing technologies and processes, covering such topics as micro-injection moulding, micro-cutting, micro-EDM, micro-assembly, micro-additive manufacturing, moulded interconnected devices, and microscale metrology. It is designed to provide complementary material for the related e-learning platform on micro-manufacturing developed within the framework of the Leonardo da Vinci project 2013-3748/542424: MIMAN-T: Micro-Manufacturing Training System for SMEs. The book is mainly addressed to technicians and prospective professionals in the sector and will serve as an easily usable tool to facilitate the translation of micro-manufacturing technologies into tangible industrial benefits. Numerous examples are included to assist readers in learning and implementing the described technologies. In addition, an individual chapter is devoted to technological foresight, addressing market analysis and business models for mic...

Fabiola Gianotti, the newly elected Spokesperson of ATLAS

CERN Multimedia

2008-01-01

On 11 July Fabiola Gianotti was elected by the ATLAS Collaboration as its future Spokesperson. Her term of office will start on 1 March 2009 and will last for two years. She will take over from Peter Jenni who has been ATLAS Spokesperson since its formalization in 1992. Three distinguished physicists stood as candidates for this election: Fabiola Gianotti (CERN), Marzio Nessi (CERN), and Leonardo Rossi (INFN Genova, Italy). The nomination process started on 30 October 2007, with a general email sent to the ATLAS collaboration calling for nominations, and closed on 25 January 2008. Any ATLAS physicist could nominate a candidate, and 24 nominees were proposed before the ATLAS search committee narrowed them to the final three. After the voting process, which concluded the ATLAS general meeting in Bern, the Collaboration Board greeted the result with warm applause.

From Illusion to Reality: A Brief History of Robotic Surgery.

Science.gov (United States)

Marino, Marco Vito; Shabat, Galyna; Gulotta, Gaspare; Komorowski, Andrzej Lech

2018-04-01

Robotic surgery is currently employed for many surgical procedures, yielding interesting results. We performed an historical review of robots and robotic surgery evaluating some critical phases of its evolution, analyzing its impact on our life and the steps completed that gave the robotics its current popularity. The origins of robotics can be traced back to Greek mythology. Different aspects of robotics have been explored by some of the greatest inventors like Leonardo da Vinci, Pierre Jaquet-Droz, and Wolfgang Von-Kempelen. Advances in many fields of science made possible the development of advanced surgical robots. Over 3000 da Vinci robotic platforms are installed worldwide, and more than 200 000 robotic procedures are performed every year. Despite some potential adverse events, robotic technology seems safe and feasible. It is strictly linked to our life, leading surgeons to a new concept of surgery and training.

The origin of the vertebrate skeleton

Science.gov (United States)

Pivar, Stuart

2011-01-01

The anatomy of the human and other vertebrates has been well described since the days of Leonardo da Vinci and Vesalius. The causative origin of the configuration of the bones and of their shapes and forms has been addressed over the ensuing centuries by such outstanding investigators as Goethe, Von Baer, Gegenbauer, Wilhelm His and D'Arcy Thompson, who sought to apply mechanical principles to morphogenesis. However, no coherent causative model of morphogenesis has ever been presented. This paper presents a causative model for the origin of the vertebrate skeleton, based on the premise that the body is a mosaic enlargement of self-organized patterns engrained in the membrane of the egg cell. Drawings illustrate the proposed hypothetical origin of membrane patterning and the changes in the hydrostatic equilibrium of the cytoplasm that cause topographical deformations resulting in the vertebrate body form.

Evaluation of a micro-scale wind model's performance over realistic building clusters using wind tunnel experiments

Science.gov (United States)

Zhang, Ning; Du, Yunsong; Miao, Shiguang; Fang, Xiaoyi

2016-08-01

The simulation performance over complex building clusters of a wind simulation model (Wind Information Field Fast Analysis model, WIFFA) in a micro-scale air pollutant dispersion model system (Urban Microscale Air Pollution dispersion Simulation model, UMAPS) is evaluated using various wind tunnel experimental data including the CEDVAL (Compilation of Experimental Data for Validation of Micro-Scale Dispersion Models) wind tunnel experiment data and the NJU-FZ experiment data (Nanjing University-Fang Zhuang neighborhood wind tunnel experiment data). The results show that the wind model can reproduce the vortexes triggered by urban buildings well, and the flow patterns in urban street canyons and building clusters can also be represented. Due to the complex shapes of buildings and their distributions, the simulation deviations/discrepancies from the measurements are usually caused by the simplification of the building shapes and the determination of the key zone sizes. The computational efficiencies of different cases are also discussed in this paper. The model has a high computational efficiency compared to traditional numerical models that solve the Navier-Stokes equations, and can produce very high-resolution (1-5 m) wind fields of a complex neighborhood scale urban building canopy (~ 1 km ×1 km) in less than 3 min when run on a personal computer.

Job Satisfaction Analysis in Rural China: A Qualitative Study of Doctors in a Township Hospital.

Science.gov (United States)

Chen, Qiwei; Yang, Lan; Feng, Qiming; Tighe, Scott S

2017-01-01

Background . Township hospitals in China provide rural communities with basic but much needed critical health care services. The doctors working in these hospitals often feel unsatisfied when considering their work schedules and financial rewards. Method . To explore job satisfaction of health workers in a township hospital, a qualitative study was conducted of 39 doctors from five township hospitals in Guangxi Zhuang Autonomous Region. The goal was to understand the level of job satisfaction of doctors and to make recommendations for improvements. Results . About 75% (28/39) of the doctors expressed negative attitudes related to their work conditions. Slightly more than half (22/39) mentioned they should receive greater compensation for their work and more than one were seriously considering other options. Many participants (35/39) showed their satisfaction about the achievement of serving as a doctor. Conclusion . Their main concerns related to job satisfaction included working conditions, financial rewards, and the doctor's relationships with patients. Increasing the incomes and fringe benefits of healthcare workers, improving their work conditions, and providing training and continuing education opportunities would help rural clinics retain doctors and eliminate the current unsatisfactory conditions. The findings also highlight the need for the government to increase financial support of township hospitals.

Job Satisfaction Analysis in Rural China: A Qualitative Study of Doctors in a Township Hospital

Directory of Open Access Journals (Sweden)

Qiwei Chen

2017-01-01

Full Text Available Background. Township hospitals in China provide rural communities with basic but much needed critical health care services. The doctors working in these hospitals often feel unsatisfied when considering their work schedules and financial rewards. Method. To explore job satisfaction of health workers in a township hospital, a qualitative study was conducted of 39 doctors from five township hospitals in Guangxi Zhuang Autonomous Region. The goal was to understand the level of job satisfaction of doctors and to make recommendations for improvements. Results. About 75% (28/39 of the doctors expressed negative attitudes related to their work conditions. Slightly more than half (22/39 mentioned they should receive greater compensation for their work and more than one were seriously considering other options. Many participants (35/39 showed their satisfaction about the achievement of serving as a doctor. Conclusion. Their main concerns related to job satisfaction included working conditions, financial rewards, and the doctor’s relationships with patients. Increasing the incomes and fringe benefits of healthcare workers, improving their work conditions, and providing training and continuing education opportunities would help rural clinics retain doctors and eliminate the current unsatisfactory conditions. The findings also highlight the need for the government to increase financial support of township hospitals.

En Memoria de Heinz Hossdorf

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Cassinello, P.

2006-06-01

Full Text Available Science, Technology, Civil Engineering and Architecture regret the recent death of Heinz Hossdorf, a genius of the 20th century.Although, Hossdorf was formed as a civil engineer at the Zurich Polytechnic, his special scientific model of thinking made him self-taught. As Leonardo Da Vinci, he was an observant lover of the Laws which rule the Universe. He founded his own investigation laboratory in Basilea in order to follow the way of his intuition with freedom. He was always in contact with the Instituto Técnico de la Construcción founded by Eduardo Torroja.His technique and scientific contributions belong to different fields such as: model tests, electronic, civil engineering, architecture, photography, computer applications, threedimensional draw CAD, new materials, heavy machinery, and also the most revolutionary calculation methods such as FME.The innovative work built by Heinz Hossdorf, such as those built by Maillart, Torroja and Nervi, belong to the most important legacy of Modern Architecture and Engineering.La Ciencia, la Tecnología, la Ingeniería Civil y la Arquitectura lamentan la reciente muerte de Heinz Hossdorf, un genio del siglo XX.Aunque Hossdorf se formó como ingeniero civil en la Politécnica de Zurich, su especial modelo de pensamiento científico le llevó a ser autodidacta. Fue, como Leonardo Da Vinci, un amante observador de las Leyes que rigen el Universo. Fundó su propio laboratorio de investigación en Basilea para seguir libremente el camino de su intuición. De forma permanente estuvo en contacto con el Instituto Técnico de la Construcción fundado por Eduardo Torroja.Sus aportaciones técnicas y científicas pertenecen a campos tan diversos como: ensayos sobre modelos, electrónica, ingeniería civil, arquitectura, fotografía, aplicaciones del ordenador, representación gráfica tridimensional CAD, nuevos materiales, maquinaria pesada, y hasta los más revolucionarios métodos de cálculo, como el FME

Innovación, desarrollo y divulgación en el Centro de Tecnología del Espectáculo

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Larrañaga, Patxi J.

2006-02-01

Full Text Available The Centre for Stage Technology (CTE in its Spanish acronym is a public centre, reporting to the National Institute for Scenic Arts and Music (Ministry of Culture. It was set up in 1988 to provide specific training in the technical and management professions for live shows: machinery, set construction, props, costumes, make-up, production and management, stage direction, lighting and sound. The article deals with the specifics of this training, at the same time technical and irremediably linked to the artistic project, summarizing the innovative work carried out on its methodological aspects starting from the outcome of the project shared with other specialized European centres (FIRCTE Programmes included within the European Union’s Leonardo da Vinci Programme. Furthermore, it reviews innovation and development projects in which the CTE is an active participant: Cataloguing of costume resources, Actions for the dissemination of the conservation of these resources, preparation of documents on the prevention of risks in the workplace, etc.El Centro de Tecnología del Espectáculo es un centro público, dependiente del Instituto Nacional de las Artes Escénicas y de la Música (Ministerio de Cultura. Se creó en 1988 para impartir formación específica para las profesiones técnicas y de gestión de las artes del espectáculo en vivo: maquinaria, construcción de decorados, utilería, vestuario, caracterización, producción y gestión, regiduría, iluminación y sonido. El artículo trata sobre la especificidad de esta formación, técnica pero absolutamente vinculada al proyecto artístico, resumiendo el trabajo de innovación realizado sobre los aspectos metodológicos de la misma a partir del resultado del proyecto compartido con otros centros europeos especializados (Programas FIRCTE integrados en el Programa Leonardo da Vinci de la Unión Europea. Asimismo, se muestran proyectos de innovación y desarrollo en los que el CTE participa

From Leonardo to the graser: light scattering in historical perspective. Pt. 5. The fourth Baron Rayleigh

Energy Technology Data Exchange (ETDEWEB)

Hey, J D

1986-07-01

The optical research of Robert John Strutt, fourth Baron Rayleigh, on the transparency of the terrestrial atmosphere as determined by the distribution of ozone, is reviewed in relation to the studies of Hartley, Cornu, Fabry and Buisson, and Fowler on this subject. It is shown that the basis of Rayleigh's work is now incorporated in the modern optical techniques for atmospheric monitoring.

Pomembnost kompetenc diplomantov poslovnih študijskih programov na trgu dela = The Relevance of Competencies of Business Study Graduates at the Labour Market

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Doris Gomezelj Omerzel

2008-03-01

Full Text Available This paper provides a brief description of a research study entitled Mislem - ‘Developing Meta-level quality Indicators for establishing a Systematic Linkage between institutions of higher Education and the labour Market’, carried out between 2005 and 2007 (Leonardo da Vinci Project, Sponsored by the European Union. The aim of this paper is to report key findings from the project involving nine partners from four different countries: Austria, England, Slovenia and Romania. It gives an overview of the research methodology framework and some findings of the first, qualitative stage, and second, quantitative stage of the research. Among the most important empirical findings from this 2-year research project was that both employers and recent business graduates agree that the development of certain critical competencies during business education, in addition to acquisition of business knowledge, is considered most important for subsequent success in their careers.

An Italian Education: IEEE Pulse talks with Riccardo Pietrabissa, president of Italy's National Bioengineering Group, about Italian progress and challenges in biomedical engineering education.

Science.gov (United States)

Pietrabissa, Riccardo; Reynolds, Pamela

2015-01-01

From Leonardo da Vinci's designs for ball bearings to the incredible engineering wizardry behind the Ferrari, the inventive, inquisitive, and ingenious spirit of the engineer has always lived--and thrived--in Italy. From education to research to product development, Italy has always been regarded as an engineering leader. But does this apply to biomedical engineering (BME)? Despite many successes, questions loom, as they do at engineering schools worldwide. Concerns such as whether BME programs are providing students with enough focused, practical, hands-on training remain at the forefront, as does the question of whether graduates will be able to find jobs in industry after university studies are over. Here, IEEE Pulse explores these topics with Riccardo Pietrabissa, president of the Gruppo Nazionale di Bioingegneria (National Bioengineering Group) and a full professor in the Department of Chemistry, Materials, and Chemical Engineering at Politecnico di Milano.

Development of a cloud-based system for remote monitoring of a PVT panel

Science.gov (United States)

Saraiva, Luis; Alcaso, Adérito; Vieira, Paulo; Ramos, Carlos Figueiredo; Cardoso, Antonio Marques

2016-10-01

The paper presents a monitoring system developed for an energy conversion system based on the sun and known as thermophotovoltaic panel (PVT). The project was implemented using two embedded microcontrollers platforms (arduino Leonardo and arduino yún), wireless transmission systems (WI-FI and XBEE) and net computing ,commonly known as cloud (Google cloud). The main objective of the project is to provide remote access and real-time data monitoring (like: electrical current, electrical voltage, input fluid temperature, output fluid temperature, backward fluid temperature, up PV glass temperature, down PV glass temperature, ambient temperature, solar radiation, wind speed, wind direction and fluid mass flow). This project demonstrates the feasibility of using inexpensive microcontroller's platforms and free internet service in theWeb, to support the remote study of renewable energy systems, eliminating the acquisition of dedicated systems typically more expensive and limited in the kind of processing proposed.

The colour wheels of art, perception, science and physiology

Science.gov (United States)

Harkness, Nick

2006-06-01

Colour is not the domain of any one discipline be it art, philosophy, psychology or science. Each discipline has its own colour wheel and this presentation examines the origins and philosophies behind the colour circles of Art, Perception, Science and Physiology (after image) with reference to Aristotle, Robert Boyle, Leonardo da Vinci, Goethe, Ewald Hering and Albert Munsell. The paper analyses and discusses the differences between the four colour wheels using the Natural Colour System® notation as the reference for hue (the position of colours within each of the colour wheels). Examination of the colour wheels shows the dominance of blue in the wheels of art, science and physiology particularly at the expense of green. This paper does not consider the three-dimensionality of colour space its goal was to review the hue of a colour with regard to its position on the respective colour wheels.

[The spread of the plague: A sciento-historiographic review].

Science.gov (United States)

Cuadrada, Coral

2015-01-01

There is still uncertainty about the diagnosis and nature of the plague; some scholars have been forced to abandon certainties and be filled with doubts: from believing that the mediaeval Black Plague was, in reality, the bubonic plague (although with unusual characteristics) to stating that there is very little evidence to support a retro-diagnosis. This article looks at this in depth, not only reviewing the historiography but also giving new interpretations which question previous hypotheses through research on images of the time, comparing them to the most recent investigative data. Two primary sources are analysed: Renaissance treaties written by four Italian doctors: Michele Savonarola, Marsilio Ficino, Leonardo Fioravanti and Gioseffo Daciano; and iconography: an illustrated manuscript of the Decameron by Giovanni Boccaccio and a Hebrew Haggadah from the XIVth century. The results are compared to the most recent research on DNA and in micropaleontology.

Multimedia Discovery of the Leonardo’s Vitruvian Man

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Eva Savina Maliverni

2015-07-01

Full Text Available The dissemination and exploitation of cultural heritage milestones by using multimedia and interactive technologies continuously and quickly grows capturing the attention of academia and companies. It is necessary to adopt the state of the art technologies to present and make bi-directional the interaction of users with cultural heritage objects. In this work, we present two different applications of novel technologies applied to the Vitruvian man of Leonardo. The first application is the mirror that exploits a 3D depth sensor to compare the proportions of a user with the perfect ones of the Vitruvian man. The second application is a complex interaction between a complete novel 3D model of the Leonardo’s Vitruvian Man, sounds and image effects inside a 360-degrees hologram. These two systems are the results of interaction between academia and the 3D EVE spin-off company.

Drawing physics 2600 year of discovery from Thales to Higgs

CERN Document Server

Lemons, Don S

2017-01-01

Humans have been trying to understand the physical universe since antiquity. Aristotle had one vision (the realm of the celestial spheres is perfect), and Einstein another (all motion is relativistic). More often than not, these different understandings begin with a simple drawing, a pre-mathematical picture of reality. Such drawings are a humble but effective tool of the physicist's craft, part of the tradition of thinking, teaching, and learning passed down through the centuries. This book uses drawings to help explain fifty-one key ideas of physics accessibly and engagingly. Don Lemons, a professor of physics and author of several physics books, pairs short, elegantly written essays with simple drawings that together convey important concepts from the history of physical science. Lemons proceeds chronologically, beginning with Thales' discovery of triangulation, the Pythagorean monocord, and Archimedes' explanation of balance. He continues through Leonardo's description of -earthshine- (the ghostly glow b...

Construction management

CERN Document Server

Pellicer, Eugenio; Teixeira, José C; Moura, Helder P; Catalá, Joaquín

2014-01-01

The management of construction projects is a wide ranging and challenging discipline in an increasingly international industry, facing continual challenges and demands for improvements in safety, in quality and cost control, and in the avoidance of contractual disputes. Construction Management grew out of a Leonardo da Vinci project to develop a series of Common Learning Outcomes for European Managers in Construction. Financed by the European Union, the project aimed to develop a library of basic materials for developing construction management skills for use in a pan-European context. Focused exclusively on the management of the construction phase of a building project from the contractor's point of view, Construction Management covers the complete range of topics of which mastery is required by the construction management professional for the effective delivery of new construction projects. With the continued internationalisation of the construction industry, Construction Management will be required rea...

The SUPERCOMET 2 Project: Teacher Seminar and Teacher Guide

Science.gov (United States)

Engstrom, V.; Ireson, G.; Latal, H.; Mathelitsch, L.; Michelini, M.; Peeters, W.; Rath, G.

2008-05-01

The Leonardo da Vinci pilot projects SUPERCOMET (2001-2004) and SUPERCOMET 2 (2004-2007) developed and tested teacher training materials for active, minds-on learning of electromagnetism and superconductivity at the level of upper secondary school. New multimedia materials for the pupils supported the teacher materials, including a teacher seminar in 4 half-day modules detailing the scientific contents, teaching methods, using ICT in physics teaching and learning, online collaboration and further resources for exploring the selected topics. The aim of these projects were to improve the quality of physics teaching on a European level, involving a combined total of 45 partners in 16 countries, and conducting trials at 67 schools with approx. 230 teachers, 280 trainee teachers and 2200 pupils. New follow-up projects develop hands-on materials for carrying out the activities described in the teacher guide and seminars and additional teacher materials involving modelling, simulations and data logging.

Hydro-mechanical foundation for blood swirling vortex flows formation in the cardio-vascular system and the problem of artificial heart creation

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Sergey G. Chefranov

2013-11-01

Full Text Available Leonardo da Vinci perhaps was the first who paid attention to the energetic efficiency of existence of vortices emerging near sines of Valsalva and defining normal functioning (opening of aortal valve. However up to now a fundamental problem of defining of mechanisms of mysterious energetic efficiency of functioning of cardio-vascular system (CVS of blood feeding of the organism is still remaining significantly not solved and this is, for example, one of the main restriction for the creation of artificial heart and corresponding valve systems. In the present paper, results witnessing possible important role of the very hydro-mechanical mechanism in the realization of the noted energetic efficiency of CVS due to formation in the CVS of spiral structural organization of the arterial blood flow observed by methods of MRT and color Doppler-measuring in the left ventricular of the heart and in aorta.

Leonardo Torres Quevedo: el patrimonio histórico, científico, tecnológico y educativo … y las funciones de la universidad. // Leonardo Torres Quevedo: historical, scientific, technological and educational heritage … and the functions of university

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Francisco A. González Redondo

2017-05-01

Full Text Available (ES Con ocasión de la conmemoración del centenario del Transbordador del Niágara, a lo largo de 2016 se ha llevado a cabo un denso programa de actividades, promovido desde la asociación cultural Amigos de la Cultura Científica, que han dado contenido al “Año Torres Quevedo 2016”. Ha sido una experiencia singular, en el ámbito del patrimonio histórico, científico, tecnológico y educativo, en la que se han plasmado las cuatro funciones de la universidad al servicio de la Sociedad que establece la ley, pues no sólo se han puesto a disposición de los ciudadanos y de la comunidad educativa numerosas exposiciones, conferencias, artículos, programas de radio y televisión, etc., sino que se han sembrado las semillas para que desde colegios, institutos y centros universitarios se continúe estudiando y difundiendo la vida y la obra de “el más prodigioso inventor de su tiempo”. // (EN Taking as motivation the commemoration of the centenary of the Niagara Spanish Aerocar, along 2016 the association of Friends of Scientific Culture has promoted a solid programme of activities which have given content to “The Year Torres Quevedo 2016”. This has been a remarkable experience for our heritage, in all its historical, scientific, technological and educational fields, along which the four functions of university at the service of Society, as determined by law, have been accomplished, as not only citizens and the educational community have benefited from a great number of Lectures, Exhibitions, Articles, TV and Radio programs, etc., but the seeds have been sown for schools, colleges and University faculties and departments to continue studying and disseminating the life and work of “the most prodigious inventor of his time”.

Etan hydropower project spurs industrial, agricultural growth of region

Energy Technology Data Exchange (ETDEWEB)

1982-01-01

Located in Hongdu commune, Xincheng County, Guangxi Zhuang Autonomous Region, on the middle reaches of the Hongshui River, the Etan hydroelectric power station was begun in 1977 and began to generate power in April 1981. The Etan hydroelectric power station is a run-off type, low waterhead medium-sized power station. It has an installed capacity of 60,000 kW for an average yearly power output of 328 million kWh. The main structure of the power station includes a water diversion canal, a water intake gate, a main machinery building and a switching station. The main machinery building is located on the downstream side of the dam on an overhanging cliff. With a construction area of only 5000 m/sup 2/, work was very difficult due to the restricted work area and transportation problems. By strengthening construction management and promoting technical innovation some 670,000 yuan were saved for the state and construction time was accelerated. This assured the completion of the construction and installation of the main parts of the project according to timetables and design requirements. The successful construction of the Etan hydroelectric power station marks another step in amassing experience in the harnessing of the Hongshui River. The project will have a major impact on the growth of industry and agriculture in Guangxi and on the buildup of the minority regions.

Overview of human clonorchiasis sinensis in China.

Science.gov (United States)

Xue-Ming, Li; Ying-Dan, Chen; Yi, Ouyang; Hong-Man, Zhang; Rui, Lin; Weil, Mao

2011-03-01

The objective of the survey was to determine the current status, trends and transmission factors for Clonorchis sinensis infection in China and to provide updated information for development control strategies. This was part of a nationwide survey of major human parasitic diseases carried out during 2000-2002 sampled by the stratified randomized cluster sampling method. Fecal examination was conducted using the Kato-Katz thick smear method and egg count per gram of feces (EPG) was determined for the egg-positive patients. A questionnaire and a case-control study were applied to analyze the transmission factors for C. sinensis infection. The overall prevalence rate of C. sinensis infection was 0.58% in 356,629 residents from 688 sampled pilot sites in 31 provinces, autonomous regions and municipalities (PAM) of China. The infection rates of C. sinensis in Guangdong, Jilin, Guangxi Zhuang autonomous region, Anhui and Heilongjiang were higher than the other PAM, they were 5.35, 4.77, 3.71, 0.67 and 0.48%, respectively. In Guangxi, moderate and heavy infections were found in 29.14% and 11.52%, respectively, of the total infected. Heavy infections were not found in any of the other provinces except for 2 heavily infected cases in Heilongjiang. The prevalence rate increased with age for residents aged water fish or shrimp were the main risk factors responsible for transmission of the parasite.

[Prevalence and related factors of HIV/HBV coinfection among HIV/AIDS patients].

Science.gov (United States)

Feng, D; Yao, T; Cheng, Y P; Pan, M H; Li, C X; Wang, J; Feng, Y L; Shi, J; Huang, H L; Lu, H Y; Lan, G H; Wang, S P; Zhang, Y W

2017-12-10

Objective: To reveal the prevalence and the related factors of hepatitis B (HepB) virus infection among HIV/AIDS patients. Methods: We conducted a cross-sectional study in two HIV clinics, affiliated to local Centers of Disease Control and Prevention in Guangxi Zhuang Autonomous Regional. A face-to-face interview, with questionnaire was conducted to collect information on socio-demographic characteristics, drug use, and sexual behavior. Blood samples were used to test HBsAg. χ (2) test or Fisher's exact test and unconditional logistic regression models were used to identify the influencing factors. Results: The prevalence of HBV and HIV co-infection was 13.85% (113/816). Results from multivariate logistic regression analyses showed that age (25-45), family history of HBV and history of HepB vaccination were independent influencing factors for HBV and HIV coinfection, with OR (95% CI ) as 1.738 (1.031-2.931), 2.898 (1.678-5.005) and 1.744 (1.052-2.892), respectively. Conclusion: The prevalence of HBV among HIV/AIDS patients was significantly higher than that in general population. HIV/AIDS patients aged between 25 and 45 and with family history of HBV were more likely to be infected with HBV, while HepB vaccination was associated with the reduction of HIV/HBV coinfection. Specific comprehensive prevention and treatment programs on HIV/AIDS patients need to be set up.

MICB gene diversity and balancing selection on its promoter region in Yao population in southern China.

Science.gov (United States)

Chen, Xiang; Liu, Xuexiang; Wei, Xiaomou; Meng, Yuming; Liu, Limin; Qin, Shini; Liu, Yanyu; Dai, Shengming

2016-12-01

To comprehensively examine the MICB gene polymorphism and identify its differences in Chinese Yao population from other ethnic groups, we investigated the polymorphism in the 5'-upstream regulation region (5'-URR), coding region (exons 2-4), and the 3'-untranslated region (3'-UTR) of MICB gene by using PCR-SBT method in 125 healthy unrelated Yao individuals in Guangxi Zhuang Autonomous Region. Higher polymorphism was observed in the 5'-URR, nine single nucleotide polymorphisms (SNPs) and a two base pairs deletion at position -139/-138 were found in our study. Only five different variation sites, however, were detected in exons 2-4 and three were observed in the 3'-UTR. The minor allele frequencies of all variants were greater than 5%, except for rs3828916, rs3131639, rs45627734, rs113620316, rs779737471, and the variation at position +11803 in the 3'-UTR. The first nine SNPs of 5'-URR and rs1065075, rs1051788 of the coding region showed significant linkage disequilibrium with each other. Ten different MICB extended haplotypes (EH) encompassing the 5'-URR, exons 2-4, and 3'-UTR were found in this population, and the most frequent was EH1 (23.2%). We provided several evidences for balancing selection effect on the 5'-URR of MICB gene in Yao population. Copyright © 2016 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved.

Research progress on criteria for discontinuation of EGFR inhibitor therapy

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Zhuang HQ

2012-10-01

Full Text Available Hong-qing Zhuang, Zhi-yong Yuan, Jun Wang, Ping Wang, Lu-jun Zhao, Bai-lin ZhangDepartment of Radiotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin Lung Cancer Center, Tianjin, People's Republic of ChinaAbstract: The clinical success of the epidermal growth factor receptor (EGFR tyrosine kinase inhibitors (TKI as therapeutic agents has prompted great interest in their further development and clinical testing for a wide variety of malignancies. However, most studies have focused on the efficacy of TKI, and few studies have been done on the criteria for their discontinuation. The current standard for drug discontinuation is “until progression”, based on change in tumor size. However, tumor size is not related to the gene expression which determines the efficacy of TKI in the final analysis, and it is also difficult to make a thorough and correct prediction based on tumor size when the TKI is discontinued. Nevertheless, clinical evaluation of the criteria for TKI discontinuation is still in its early days. Some promising findings have started to emerge. With the improving knowledge of EGFR and its inhibitors, it is expected that the criteria for discontinuation of EGFR inhibitor therapy will become clearer.Keywords: epidermal growth factor receptor, drug discontinuation, acquired drug-resistance

Emblem for the second manned Skylab mission, Skylab 3

Science.gov (United States)

1973-01-01

This is the emblem for the second manned Skylab mission. It will be a mission of up to 56 days. The patch symbolizes the main objectives of the flight. The central figure, adapted from one by Leonardo da Vinci, illustrates the proportions of the human form and suggests the many studies of man himself to be conducted in the zero-gravity environment of space. This drawing is superimposed on two hemispheres representing the two additional main areas of research - studies of the Sun and the development of techniques for survey of the Earth's resources. The left hemisphere show the Sun as it will be seen in the red light radiated by hydrogen atoms in the solar atmosphere. The right hemisphere is intended to suggest the studies of Earth resources to be conducted on Skylab. Although the patch denotes this mission as Skylab II, it is actually consided to be the Skylab III mission.

National Calendar-2009

Science.gov (United States)

Ghedrovici, Vera; Svet, Maria; Matvei, Valeria; Perju, Elena; Sargun, Maria; Netida, Maria

2009-10-01

The calendar represents a few hundreds of biographies of scientists, artists and writers from everywhere, printed in chronological order and adjusted to their birthdays. A number of international and national holydays, including some refering to science are included in the Calendar. A great deffect of the Calendar is the introduction in the list of holydays of the "international day of astrology". Another defect is the absence of the indication of the membership to Communist Parties for persons cited from the former USSR and former Communist Countries. The following physicists, astronomers and mathematicians had biographies in the actual issue: Kon, Lia Z., Arnautov, Vladimir I. (math), Tsukerblat, B., Kapitza, P., Donici (Donitch), N.N., Sklodowska-Curie, Maria, da Vinci, Leonardo, Birkhof, George David, Galilei, Galileo, Pisarzhveskij, Lev (chemist), Mossbauer, Rudolf Ludwig, Clochisner (Klokishner), Sofia I., Miscoi (Mishkoy), Gh. (Math), Mendel, Gregor Lohan (genet.), Glavan, Vasile (math), Chetrus (Ketrush), P. (chem), Bostan, Ion (mech. eng.), Boltzmann, Ludwig Ed.

Taare Zameen Par and dyslexic savants.

Science.gov (United States)

Chakravarty, Ambar

2009-04-01

The film Taare Zameen Par (Stars upon the Ground) portrays the tormented life at school and at home of a child with dyslexia and his eventual success after his artistic talents are discovered by his art teacher at the boarding school. The film hints at a curious neurocognitive phenomenon of creativity in the midst of language disability, as exemplified in the lives of people like Leonardo da Vinci and Albert Einstein, both of whom demonstrated extraordinary creativity even though they were probably affected with developmental learning disorders. It has been hypothesized that a developmental delay in the dominant hemisphere most likely 'disinhibits' the nondominant parietal lobe, unmasking talents-artistic or otherwise-in some such individuals. It has been suggested that, in remedial training, children with learning disorders be encouraged to develop such hidden talents to full capacity, rather than be subjected to the usual overemphasis on the correction of the disturbed coded symbol operations.

Neurological caricatures since the 15th century.

Science.gov (United States)

Lorusso, Lorenzo

2008-01-01

During the Renaissance, different artists began to draw medical illustrations from various viewpoints. Leonardo da Vinci was among those who sought to portray the emotional as well as the physical qualities of man. Other European artists described caricatural aspects of medical activities. In Northern Europe, Albrecht Durer, Hieronymus Bosch, and Pieter Brueghel were also famous for drawing caricatures. Later English artists, notably William Hogarth, Thomas Rowlandson, James Gillray, and the Cruikshanks, satirized life in general and the medical profession in particular. In Spain, Francisco Goya's works became increasingly macabre and satirical following his own mysterious illness and, in France, Honore Daumier used satire and humor to expose medical quackery. Also physicians such as Charles Bell and Jean-Martin Charcot were talented caricaturists. Their own personal artistic styles reflected their approach and gave a different "image" of neurology. Caricatures were popular portraits of developments in science and medicine and were frequently used whenever scientific language was too difficult to disseminate, in particular in the field of neurology.

Art and aesthetics in the Minutogramas of Jorge Oteiza

Directory of Open Access Journals (Sweden)

José Javier Azanza López

2018-02-01

Full Text Available During his stay in Buenos Aires in 1939, Jorge Oteiza promoted the artistic information service The art walk, a consequence of which are his Minutogramas. They are close to the comic aesthetic, show a remarkable interest in graphic design, and display a discourse that echoes Surrealism and the “ramonismo” of Ramón Gómez de la Serna. In this way, the sculptor provides some keys to understanding his aesthetic thinking: his belief in the universal values of Geometry following in the footsteps of Leonardo; Nature as the foundation for sculptural creation which he discovers in Maillol, Zadkine, Alberto and Erzia; his admiration for El Greco, Velázquez and Goya as Hispanic models; the recognition of Cézanne as the father of Contemporary Art and the teachings of Hans Arp, constitute some of the themes found in his Minutogramas, in which he also manifests his humanistic dimension in several areas of knowledge.

Museums for Science Education: can we make the difference? The case of the EST project

Directory of Open Access Journals (Sweden)

Maria Xanthoudaki

2007-06-01

Full Text Available This paper addresses the role of museums in education in science and technology through the discussion of a specific project entitled EST “Educate in Science and Technology”. The Project puts together methodologies and activities through which museums can be used as resources for long-term project work. In-service training for teachers, work in class with learning kits or with materials brought in by a Science Van, and visits to the museum are planned and developed jointly by museum experts and teachers. The Project proposes a teaching and learning model which sees the museum experience as central and integral part of a teaching and learning process with more effective outcomes. The analysis of the Project activities and methodologies is based on the work carried out at the National Museum of Science and Technology Leonardo da Vinci, which perceives the learner (the visitor at the heart of its educational methodologies and provision.

A brand new science for the planet

CERN Multimedia

CERN Bulletin

2010-01-01

“When the problem gets complicated, networking is the solution”. This is nothing new in principle but what Bob Bishop has in mind is one of those novelties that have the potential to change the course of history. He proposes to start networking sciences to create new knowledge. All this for the benefit – and the survival – of the planet.   At the end of the fifteenth and the start of the sixteenth centuries, Leonardo da Vinci was not only an engineer but also a painter, a mathematician and an architect. But in more recent years the sciences have evolved more towards specialization. “We have been treating the sciences as separate stovepipes and silos for over 200 years”, says Bob Bishop, former CEO at Silicon Graphics and a physicist with more than 40 years’ experience in scientific, technical and engineering computing. On 29 January, Bob Bishop visited CERN and gave a seminar on the role of computing in climate science. He is ...

Nanosecond Neutron Analysis for the search of the lost Leonardo’s masterpiece, the Battle of Anghiari

Science.gov (United States)

Kuznetsov, A. V.; Gorshkov, I. Yu.; Evsenin, A. V.; Osetrov, O. I.; Vakhtin, D. N.; Cosentino, A.; Seracini, M.

2009-12-01

Between 1505 and 1506 Leonardo Da Vinci painted his masterpiece, the Battle of Anghiari, in Palazzo Vecchio's Hall of 500 in Florence. The unfinished mural remained visible until 1563, when architect Giorgio Vasari undertook a renovation of the Hall and all traces of the Battle of Anghiari were lost. However, scholarly interpretation and scientific evidence suggest that the mural could be on the eastern wall, hidden behind a brick wall built in 1563 by Vasari. This paper discusses the possibility of using NNA/APT (Nanosecond Neutron Analysis/Associated Particle Technique) to establish the presence of the masterpiece by identifying behind the Vasari's wall chemical elements from the gesso preparation layer of the mural and possibly from its pigments. This paper reports on the experiments run with a simple NNA/APT system and the Monte Carlo simulations that have been carried out in order to outline the experimental setup of an advanced NNA/APT able to detect and locate the tiny amount of gesso and pigments.

“See you soon” – a retrospective on the first LHC proton run

CERN Multimedia

CERN Bulletin

2010-01-01

With the LHC already a week into the ion run, the CERN Bulletin takes the opportunity to look at the progress made by the experiments during the LHC’s first proton run. In a series of interviews, the spokespersons from the five experiments take stock of the unprecedented success of the proton run.   The LHC in the style of Leonardo da Vinci © Sergio Cittolin Read on to share in their enthusiasm and discover what achievements their experiments are most proud of, as they discuss the uncharted areas they have already started to explore. The spokespersons - Fabiola Gianotti from ATLAS, Guido Tonelli from CMS, Jurgen Schukraft from ALICE, Andrei Golutvin from LHCb and Karsten Eggert from TOTEM - discuss the new understanding gained of their detectors, the “rediscovery” of the Standard Model, as well as the progress made in the search for supersymmetry and the Higgs boson. The experiments also look ahead to the Christmas technical stop, conside...

Self-organized architectures from assorted DNA-framed nanoparticles

Science.gov (United States)

Liu, Wenyan; Halverson, Jonathan; Tian, Ye; Tkachenko, Alexei V.; Gang, Oleg

2016-09-01

The science of self-assembly has undergone a radical shift from asking questions about why individual components self-organize into ordered structures, to manipulating the resultant order. However, the quest for far-reaching nanomanufacturing requires addressing an even more challenging question: how to form nanoparticle (NP) structures with designed architectures without explicitly prescribing particle positions. Here we report an assembly concept in which building instructions are embedded into NPs via DNA frames. The integration of NPs and DNA origami frames enables the fabrication of NPs with designed anisotropic and selective interactions. Using a pre-defined set of different DNA-framed NPs, we show it is possible to design diverse planar architectures, which include periodic structures and shaped meso-objects that spontaneously emerge on mixing of the different topological types of NP. Even objects of non-trivial shapes, such as a nanoscale model of Leonardo da Vinci's Vitruvian Man, can be self-assembled successfully.

Indian cosmogonies and cosmologies

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Pajin Dušan

2011-01-01

Full Text Available Various ideas on how the universe appeared and develops, were in Indian tradition related to mythic, religious, or philosophical ideas and contexts, and developed during some 3.000 years - from the time of Vedas, to Puranas. Conserning its appeareance, two main ideas were presented. In one concept it appeared out of itself (auto-generated, and gods were among the first to appear in the cosmic sequences. In the other, it was a kind of divine creation, with hard work (like the dismembering of the primal Purusha, or as emanation of divine dance. Indian tradition had also various critiques of mythic and religious concepts (from the 8th c. BC, to the 6c., who favoured naturalistic and materialistic explanations, and concepts, in their cosmogony and cosmology. One the peculiarities was that indian cosmogony and cosmology includes great time spans, since they used a digit system which was later (in the 13th c. introduced to Europe by Fibonacci (Leonardo of Pisa, 1170-1240.

Slow viscous flow

CERN Document Server

Langlois, William E

2014-01-01

Leonardo wrote, 'Mechanics is the paradise of the mathematical sciences, because by means of it one comes to the fruits of mathematics' ; replace 'Mechanics' by 'Fluid mechanics' and here we are." -    from the Preface to the Second Edition Although the exponential growth of computer power has advanced the importance of simulations and visualization tools for elaborating new models, designs and technologies, the discipline of fluid mechanics is still large, and turbulence in flows remains a challenging problem in classical physics. Like its predecessor, the revised and expanded Second Edition of this book addresses the basic principles of fluid mechanics and solves fluid flow problems where viscous effects are the dominant physical phenomena. Much progress has occurred in the nearly half a century that has passed since the edition of 1964. As predicted, aspects of hydrodynamics once considered offbeat have risen to importance. For example, the authors have worked on problems where variations in viscosity a...

Binswanger y el análisis existencial

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Mario Acosta Gómez

2010-08-01

Full Text Available El presente trabajo aporta novedades de la obra antropológica del psiquiatra suizo Luis Binswanger, en tanto que fenomenólogo mostrando el camino recorrido por este especialista de las ciencias de la intimidad en la búsqueda de un método y una fundamentación filosófica para la psiquiatría, que permitiera reconducir a la unificación de los aspectos intelectual, volitivo y corpóreo del ser humano. Se describe el carácter perfectivo de la esencia del hombre, obtenido mediante la psicoterapia centrada en el análisis existencial propuesto por Binswanger, el cual sugiere la radicalidad de la persona en su inteligir y amar, pero ante todo por situarse frente a la libertad. En el curso del artículo se destacan aportes filosóficos de Leonardo Polo, contrastables con la Psiquiatría instaurada por Binswanger.

Cine Club

CERN Multimedia

Ciné Club

2011-01-01

Thursday 25 August 2011 at 20:30 CERN Council Chamber Shutter Island By/de : Martin Scorsese (USA, 2010) 138 min With/avec: Leonardo DiCaprio, Mark Ruffalo, Ben Kingsley, Emily Mortimer Based on the novel by Dennis Lehane   It's 1954, and up-and-coming U.S. marshal Teddy Daniels is assigned to investigate the disappearance of a patient from Boston's Shutter Island Ashecliffe Hospital. He's been pushing for an assignment on the island for personal reasons, but before long he wonders whether he hasn't been brought there as part of a twisted plot by hospital doctors whose radical treatments range from unethical to illegal to downright sinister. Teddy's shrewd investigating skills soon provide a promising lead, but the hospital refuses him access to records he suspects would break the case wide open. As a hurricane cuts off communication with the mainland, more dangerous criminals "escape" in the confusion, and the puzzling, improbable ...

An online english course using a task-based language teaching: the teacher as an agent of choice

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Denise Elaine Emidio

2016-10-01

Full Text Available Since the advent of the new technologies, the language teaching came across to a virtual learning environment. In an attempt to consider the principles of the communicative approach (ALMEIDA FILHO, 2002, 2005, 2012 and the task-based language teaching (TBLT (SKEHAN, 1996; XAVIER 1999, 2007; BARBIRATO 1999, 2005 an online English course was offered in the Moodle platform to students of technical, technological and Undergraduate courses from a Federal institution of technology. The theme chosen for the course was Inventors and Inventions and the thematic units contemplated aspects of Nikola Tesla’s and Leonardo da Vinci’s lives and inventions. The purpose of this article, therefore, is to present and discuss results derived from a doctoral research analyzing the teacher’s role in the preparation of thematic material based on tasks for the online English course in the Moodle. The data analysis pointed out to the very important role of the teacher in the challenges and choices along the process of the material elaboration.

Aprendamos a conocer y respetar el medio que nos rodea de la mano de Leonardo da Vinci

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Mª Begoña Carretero Gómez

2007-04-01

Full Text Available The effectiveness of the teaching-learning process relies on the role played by the students as the main characters in this process. The experience shown in this work is focused on getting them closer to their environment. To do this different activities have been proposed such as gathering and classifying plants, writing index cards, making ethnobotanical inquiries, and laboratory experiences. As research work has also been done: different leonardo’s texts, related to the use of plants during his century, have been read. This information has been compared to the use of plants today. Apart from enhancing their interest in their environment other main objectives are the following: the improvement of their scientific behaviour, the cooperation with other students and the respectfulness with other ways of thinking.

The genetic assimilation in language borrowing inferred from Jing People.

Science.gov (United States)

Huang, Xiufeng; Zhou, Qinghui; Bin, Xiaoyun; Lai, Shu; Lin, Chaowen; Hu, Rong; Xiao, Jiashun; Luo, Dajun; Li, Yingxiang; Wei, Lan-Hai; Yeh, Hui-Yuan; Chen, Gang; Wang, Chuan-Chao

2018-02-28

The Jing people are a recognized ethnic group in Guangxi, southwest China, who are the immigrants from Vietnam during the 16th century. They speak Vietnamese but with lots of language borrowings from Cantonese, Zhuang, and Mandarin. However, it's unclear if there is large-scale gene flow from surrounding populations into Jing people during their language change due to the very limited genetic information of this population. We collected blood samples from 37 Jing and 3 Han Chinese individuals from Wanwei, Shanxin, and Wutou islands in Guangxi and genotyped about 600,000 genome-wide single nucleotide polymorphisms (SNPs). We used Principal Component Analysis (PCA), ADMIXTURE analysis, f statistics, qpWave and qpAdm to infer the population genetic structure and admixture. Our data revealed that the Jing people are genetically similar to the populations in southwest China and mainland Southeast Asia. But compared with Vietnamese, they show significant evidence of gene flow from surrounding East Asians. The admixture proportion is estimated to be around 35-42% in different Jing groups using southern Han Chinese as a proxy. The majority of the paternal lineages of Jing people are most likely from surrounding East Asians. We conclude that the formation and language change of present-day Jing people have involved genetic assimilation of surrounding East Asian populations. The language borrowing, in this case, is not only a cultural phenomenon but has involved demic diffusion. © 2018 Wiley Periodicals, Inc.

An investigation of parasitic infections and review of molecular characterization of the intestinal protozoa in nonhuman primates in China from 2009 to 2015

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Junqiang Li

2017-04-01

Full Text Available Parasites are a well-known threat to nonhuman primate (NHP populations, and potentially cause zoonotic diseases in humans. In this study, the basic data was provided of the parasites in NHPs and the molecular characterization of the Enterocytozoon bieneusi, Giardia duodenalis, Cryptosporidium spp., and Entamoeba spp. were reviewed, which were found in these samples. A total of 3349 fecal samples were collected from 34 species reared at 17 districts in zoos, farms, free-range, or research laboratories, and examined microscopically. Eleven genera of intestinal parasites were detected: five genera of protozoans (Isospora spp., Entamoeba spp., Giardia sp., Cryptosporidium spp., and Cyclospora spp. and six genera of helminths (Trichuris spp., Strongyloides spp., Ascaris spp., Physaloptera spp., Ancylostoma spp., and Enterobius spp.. The overall sample prevalence of parasitic infection was 54.1% (1811/3349. Entamoeba spp. was the most prevalent (36.4%, 1218/3349. The infection rate was the highest in free-range animals (73.0%, 670/918 (P < 0.01 and Guangxi Zhuang autonomous region (64.8%, 566/873. Mixed infections were mostly detected for Entamoeba spp., Trichuris spp., and Strongyloides spp.. Molecular characterization was reviewed of Enterocytozoon bieneusi, Giardia duodenalis, Cryptosporidium spp., and Entamoeba spp., as these are zoonotic species or genotypes. This parasitological data for NHPs in China, provides important information for veterinarians and public health authorities for the elimination of such parasites and monitor the potential transmission of zoonotic infections from NHPs.

Open-system Kohn-Sham density functional theory.

Science.gov (United States)

Zhou, Yongxi; Ernzerhof, Matthias

2012-03-07

A simple model for electron transport through molecules is provided by the source-sink potential (SSP) method [F. Goyer, M. Ernzerhof, and M. Zhuang, J. Chem. Phys. 126, 144104 (2007)]. In SSP, the boundary conditions of having an incoming and outgoing electron current are enforced through complex potentials that are added to the Hamiltonian. Depending on the sign of the imaginary part of the potentials, current density is generated or absorbed. In this way, a finite system can be used to model infinite molecular electronic devices. The SSP has originally been developed for the Hückel method and subsequently it has been extended [F. Goyer and M. Ernzerhof, J. Chem. Phys. 134, 174101 (2011)] to the Hubbard model. Here we present a step towards its generalization for first-principles electronic structure theory methods. In particular, drawing on our earlier work, we discuss a new generalized density functional theory for complex non-Hermitian Hamiltonians. This theory enables us to combine SSP and Kohn-Sham theory to obtain a method for the description of open systems that exchange current density with their environment. Similarly, the Hartree-Fock method is extended to the realm of non-Hermitian, SSP containing Hamiltonians. As a proof of principle, we present the first applications of complex-density functional theory (CODFT) as well as non-Hermitian Hartree-Fock theory to electron transport through molecules. © 2012 American Institute of Physics

Da necessidade do letramento literário em línguas estrangeiras

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Rosiani Xypas

2014-06-01

Full Text Available The action-oriented approach advocated by the Common European Framework of Reference for Languages (2001 stresses the importance of literary literacy in shaping language learners. In this paper, we aim at understanding comprehension difficulties in reading a literary text. We have found that our intermediate-level learners and even advanced-level learners do not understand a literary text when they read it on their own, except when the teacher reads it for them. However, the same learners do not have comprehension difficulties when it comes to informative, journalistic or instructional texts. Why is there a comprehension difficulty in reading literary texts if they are chosen considering the level to which they belong? To answer this question, we elaborated the didactic process advocated by Cyr (1998; Fayol and Gaonac’h (2005, that consists in silent reading and reading aloud, from the following corpus: a passage from the romance La Place, de Annie Ernaux, to intermediate learners, aiming at broadening house vocabulary, and a passage from the romance Une fille Zhuang, de Wei-Wei, to advanced learners, aiming at written production. Due to the lack of comprehension, we practiced an explicitation interview according to Pierre Vermersch (2010, in which the totality of the learners became aware of the source of the problem, according to which they do not know how to manage prosodic elements from the given text impairing sense building. Aware of this difficulty, the present paper ends with didactic reflections about the theme.

Paeoniflorin prevents hypoxia-induced epithelial–mesenchymal transition in human breast cancer cells

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Zhou Z

2016-04-01

Full Text Available Zhenyu Zhou,1,* Shunchang Wang,1,* Caijuan Song,2 Zhuang Hu11Department of Thyroid and Breast, Huaihe Hospital, Henan University, Kaifeng, 2Department of Immunization Program, Zhengzhou Center for Disease Control and Prevention, Zhengzhou, People’s Republic of China*These authors contributed equally to this workAbstract: Paeoniflorin (PF is a monoterpene glycoside extracted from the root of Paeonia lactiflora Pall. Previous studies have demonstrated that PF inhibits the growth, invasion, and metastasis of tumors in vivo and in vitro. However, the effect of PF on hypoxia-induced epithelial–mesenchymal transition (EMT in breast cancer cells remains unknown. Therefore, the objective of this study was to investigate the effect of PF on hypoxia-induced EMT in breast cancer cells, as well as characterize the underlying mechanism. The results presented in this study demonstrate that PF blocks the migration and invasion of breast cancer cells by repressing EMT under hypoxic conditions. PF also significantly attenuated the hypoxia-induced increase in HIF-1α level. Furthermore, PF prevented hypoxia-induced expression of phosphorylated PI3K and Akt in MDA-MB-231 cells. In conclusion, PF prevented hypoxia-induced EMT in breast cancer cells by inhibiting HIF-1α expression via modulation of PI3K/Akt signaling pathway. This finding provides evidence that PF can serve as a therapeutic agent for the treatment of breast cancer.Keywords: paeoniflorin, breast cancer, hypoxia, epithelial–mesenchymal transition, PI3K/Akt signaling pathway

Peroxidase-like activity of nanocrystalline cobalt selenide and its application for uric acid detection

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Zhuang QQ

2017-04-01

Full Text Available Quan-Quan Zhuang,1 Zhi-Hang Lin,1 Yan-Cheng Jiang,1 Hao-Hua Deng,2 Shao-Bin He,1,3 Li-Ting Su,4 Xiao-Qiong Shi,2 Wei Chen2 1Department of Pharmacy, Affiliated Quanzhou First Hospital of Fujian Medical University, Quanzhou, 2Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 3Department of Pharmacy, Quanzhou Infectious Disease Hospital, 4Department of Pharmaceutical Analysis, Quanzhou Medical College, Quanzhou, People’s Republic of China Abstract: Dendrite-like cobalt selenide nanostructures were synthesized from cobalt and selenium powder precursors by a solvothermal method in anhydrous ethylenediamine. The as-prepared nanocrystalline cobalt selenide was found to possess peroxidase-like activity that could catalyze the reaction of peroxidase substrates in the presence of H2O2. A spectrophotometric method for uric acid (UA determination was developed based on the nanocrystalline cobalt selenide-catalyzed coupling reaction between N-ethyl-N-(3-sulfopropyl-3-methylaniline sodium salt and 4-aminoantipyrine (4-AAP in the presence of H2O2. Under optimum conditions, the absorbance was proportional to the concentration of UA over the range of 2.0–40 µM with a detection limit of 0.5 µM. The applicability of the proposed method has been validated by determination of UA in human serum samples with satisfactory results. Keywords: enzyme mimics, cobalt selenide, peroxidase-like activity, uric acid, human serum

Perancangan Sistem Pengairan Tanaman Otomatis Menggunakan Grove Moisture Sensor Sen0100 Berbasis Arduino Leonardo dan Monitoring Melalui Wifi

OpenAIRE

Siregar, Risci Michael

2016-01-01

132408024 Internet of thing becomes a field of research since the development of Internet technology and other communications media, growing human needs of the technology, the more research that will be present, internet of things one result of researchers to optimize some of the tools such as media sensor, radio frequency identification (RFID), wireless sensor networks and other smart object that allows humans to easily interact with all the equipment that is connected to the Internet net...

A Selenological History of Lunar Poetics

Science.gov (United States)

von Chamier-Waite, C. T.

2016-01-01

The Moon. Centuries of human inquiry have engaged this mysterious object. The Moon embodies history, philosophy, cosmology, and passions; the nature of love, persecution, and our capacity for the sublime. This review considers a body of research on lunar poetics done for a series of artworks by the author. It will look at a few select writings that have profoundly influenced our epistemological, ontological, and poetic knowledge of the universe with the Moon as a central theme. Centered in the early seventeenth century at the time of Kepler and Galileo, this query follows the tendrils of lunar influences in both the sciences and literature that emanate from these two figures, forwards and backwards in time. Science, politics, theology, and the arts intertwine in this investigation. The works reviewed link the philosophy of Aristotle and the poetry of Lucian of Samosata to findings by Leonardo Da Vinci, Copernicus, Jules Verne, and others. The chosen philosophers have been selected because of their significant contributions to selenology and lunar poetics, and each of the figures reviewed have the honor of a namesake crater upon the Moon.

The Responders' Gender Stereotypes Modulate the Strategic Decision-Making of Proposers Playing the Ultimatum Game.

Science.gov (United States)

Fabre, Eve F; Causse, Mickael; Pesciarelli, Francesca; Cacciari, Cristina

2016-01-01

Despite the wealth of studies investigating factors affecting decisions, not much is known about the impact of stereotypical beliefs on strategic economic decision-making. In the present study, we used the ultimatum game paradigm to investigate how participants playing as proposer modulate their strategic economic behavior, according to their game counterparts' stereotypical identity (i.e., responders). The latter were introduced to the participants using occupational role nouns stereotypically marked with gender paired with feminine or masculine proper names (e.g., linguist-Anna; economist-David; economist-Cristina; linguist-Leonardo). When playing with male-stereotyped responders, proposers quickly applied the equity rule, behaving fairly, while they adopted a strategic behavior with responders characterized by female stereotypes. They were also longer to make their offers to female than to male responders but both kinds of responders received comparable offers, suggesting a greater cognitive effort to treat females as equally as males. The present study explicitly demonstrates that gender stereotypical information affect strategic economic decision-making and highlights a possible evolution of gender discrimination into a more insidious discrimination toward individuals with female characteristics.

The Responders’ Gender Stereotypes Modulate the Strategic Decision-Making of Proposers playing the Ultimatum Game

Directory of Open Access Journals (Sweden)

Eve Florianne Fabre

2016-01-01

Full Text Available Despite the wealth of studies investigating factors affecting decisions, not much is known about the impact of stereotypical beliefs on strategic economic decision-making. In the present study, we used the ultimatum game paradigm to investigate how participants playing as proposer modulate their strategic economic behavior, according to their game counterparts’ stereotypical identity (i.e., responders. The latter were introduced to the participants using occupational role nouns stereotypically marked with gender paired with feminine or masculine proper names (e.g., linguist-Anna; economist-David; economist-Cristina; linguist-Leonardo. When playing with male-stereotyped responders, proposers quickly applied the equity rule, behaving fairly, while they adopted a strategic behavior with responders characterized by female stereotypes. They were also longer to make their offers to female than to male responders but both kinds of responders received comparable offers, suggesting a greater cognitive effort to treat females as equally as males. The present study explicitly demonstrates that gender stereotypical information affect strategic economic decision-making and highlights a possible evolution of gender discrimination into a more insidious discrimination toward individuals with female characteristics.

A short history of the soil science discipline

Science.gov (United States)

Brevik, E. C.; Hartemink, A. E.

2012-04-01

Since people have cultivated the land they have generated and created knowledge about its soil. By the 4th century most civilizations around had various levels of soil knowledge and that includes irrigation, the use of terraces to control soil erosion, methods to maintain and improve soil fertility. The early soil knowledge was largely empirical and based on observations. Many famous scientists, for example, Francis Bacon, Robert Boyle, Charles Darwin, and Leonardo da Vinci worked on soil issues. Soil science became a true science in the 19th century with the development of genetic soil science, lead by the Russian Vasilii V. Dokuchaev. In the beginning soil science had strong ties to both geology and agriculture but in the 20th century, soil science is now being applied in residential development, the planning of highways, building foundations, septic systems, wildlife management, environmental management, and many other applications. The discipline is maturing and soil science plays a crucial role in many of the current issues that confront the world like climate change, water scarcity, biodiversity and environmental degradation.

NUESTRA PORTADA El deporte en la ciudad de Barcelona visto por una ilustradora

Directory of Open Access Journals (Sweden)

Ramon Balius i Juli

2008-03-01

Full Text Available Desde hace tiempo, en la revista Apunts elegimos y decidimos Nuestra Portada siguiendo la norma de dedicar las cuatro portadas correspondientes a un año a una temática similar. Así, hemos consagrado diferentes grupos de portadas a las obras deportivas de escultores o de pintores catalanes, a trabajos arquitectónicos de Gaudí, a distintos aspectos de la pluralidad de actividades de Leonardo da Vinci y, durante el último año, hemos presentado cuatro carteles de la colección del Biblioteca del Deporte. Por primera vez, Nuestra Portada ha sido encargada a una conocida y prestigiosa ilustradora que ha realizado un dibujo original destinado especialmente a la Monografía que publicamos sobre “El deporte en los espacios públicos urbanos”. Con esta decisión hemos seguido la definición de la Gran Enciclopedia Catalana que describe al ilustrador como “aquella persona que, basándose en el texto de una obra, escoge la ilustración más idónea para complementarla o enriquecerla”.

Effect of a new physiotherapy concept on bone mineral density, muscle force and gross motor function in children with bilateral cerebral palsy.

Science.gov (United States)

Stark, C; Nikopoulou-Smyrni, P; Stabrey, A; Semler, O; Schoenau, E

2010-06-01

The purpose of this study was to determine the effect of a new physiotherapy concept on bone density, muscle force and motor function in bilateral spastic cerebral palsy children. In a retrospective data analysis 78 children were analysed. The concept included whole body vibration, physiotherapy, resistance training and treadmill training. The concept is structured in two in-patient stays and two periods of three months home-based vibration training. Outcome measures were dual-energy x-ray absorption (DXA), Leonardo Tilt Table and a modified Gross Motor Function Measure before and after six months of training. Percent changes were highly significant for bone mineral density, -content, muscle mass and significant for angle of verticalisation, muscle force and modified Gross Motor Function Measure after six months training. The new physiotherapy concept had a significant effect on bone mineral density, muscle force and gross motor function in bilateral spastic cerebral palsy children. This implicates an amelioration in all International Classification of Functioning, Disability and Health levels. The study serves as a basis for future research on evidence based paediatric physiotherapy taking into account developmental implications.

Human heart by art.

Science.gov (United States)

Tamir, Abraham

2012-11-01

Heart is of great importance in maintaining the life of the body. Enough to stop working for a few minutes to cause death, and hence the great importance in physiology, medicine, and research. This fact was already emphasized in the Bible in the Book of Proverbs, chapter 4 verse 23: "Keep your heart with all diligence, for out of it is the wellspring of life." Art was able to demonstrate the heart from various aspects; realistically, as done by Leonardo de Vinci who demonstrated the halves of the heart and its blood vessels. Symbolically, as a source of life, the heart was demonstrated by the artist Mrs. Erlondeiel, as a caricature by Salvador Dali, as an open heart by Sawaya, etc. Finally, it should be emphasized that different demonstrations of the human heart by many artworks make this most important organ of our body (that cannot be seen from outside) more familiar and clearer to us. And this is the purpose of this article-to demonstrate the heart through a large number of artworks of different kinds.

The Responders’ Gender Stereotypes Modulate the Strategic Decision-Making of Proposers Playing the Ultimatum Game

Science.gov (United States)

Fabre, Eve F.; Causse, Mickael; Pesciarelli, Francesca; Cacciari, Cristina

2016-01-01

Despite the wealth of studies investigating factors affecting decisions, not much is known about the impact of stereotypical beliefs on strategic economic decision-making. In the present study, we used the ultimatum game paradigm to investigate how participants playing as proposer modulate their strategic economic behavior, according to their game counterparts’ stereotypical identity (i.e., responders). The latter were introduced to the participants using occupational role nouns stereotypically marked with gender paired with feminine or masculine proper names (e.g., linguist-Anna; economist-David; economist-Cristina; linguist-Leonardo). When playing with male-stereotyped responders, proposers quickly applied the equity rule, behaving fairly, while they adopted a strategic behavior with responders characterized by female stereotypes. They were also longer to make their offers to female than to male responders but both kinds of responders received comparable offers, suggesting a greater cognitive effort to treat females as equally as males. The present study explicitly demonstrates that gender stereotypical information affect strategic economic decision-making and highlights a possible evolution of gender discrimination into a more insidious discrimination toward individuals with female characteristics. PMID:26834684

A Picture is Worth a Thousand Words: Art and Medicine.

Science.gov (United States)

Dahan, Shani; Shoenfeld, Yehuda

2017-12-01

Medical practice is a form of art, with each complex detail essential to the welfare of the individuals in the care of the physician. Art and medicine have shared a close relationship in a variety of ways for centuries, as demonstrated by anatomical drawings and textbooks from the 16th century. Leonardo da Vinci, driven by his fascination with the details of the human body and how it functioned, succeeded in creating an anatomical model of the cerebral ventricles and the aorta using molten wax and a glass structure, respectively (Heart and Its Blood Vessels). By using water that contained grass seeds, this experiment enabled him to study blood flow. da Vinci's engrossment with the complexity of the human body is reflected in many of his drawings, including the famous depiction of the human physique in his drawing of the Vitruvian Man. This drawing, which defines the ideal proportions of the human body and their correlation with geometry, is an example of how artistic and scientific objectives integrate with each other.

Association of aortic coarctation and malignant right coronary artery anomaly: an unusual cause of angina pectoris

Directory of Open Access Journals (Sweden)

Sirtoli Filho R

2011-07-01

Full Text Available Rubens Sirtoli Filho1, Leonardo Cao Cãmbra de Almeida1, Maysa Godoy Gomes Mazurek Sirtoli1, Liliana Pena Pilatti2, Marcelo Valladão de Carvalho2, Marcelo Schafranski31Real e Benemérita Associação Portuguesa de Beneficência, São Paulo, Brazil; 2Department of Hemodynamics, 3Department of Intensive Care, Hospital Bom Jesus, Ponta Grossa, BrazilAbstract: A 53-year-old man with exercise-induced ischemia was referred for investigation. Coronary angiography revealed a right coronary artery originating from the trunk of the left coronary artery, and an aortic coarctation was observed on aortography. A CT angiogram confirmed these findings. Resection of the aortic coarctation and reimplantation of the ostial portion of right coronary artery into its native site was performed, and resulted in a satisfactory outcome. The association of an anomalous right coronary artery with aortic coarctation has rarely been described and represents a critical situation where early diagnosis and prompt intervention are essential.Keywords: coronary anomalies, single ostium, myocardial ischemia, angina pectoris

CERN to start producing medical isotopes

CERN Document Server

Anaïs Schaeffer

2012-01-01

A promising project that was hailed at the ICTR-PHE 2012 medical conference (see Bulletin issues 10-11/2012 and 12-13/2012) has seen the light of day at CERN. The project, known by the name of MEDICIS, will make it possible to produce a large variety of radioactive isotopes for medical research.   This image of a brain, superimposed on a drawing by Leonardo da Vinci, was taken by a PET scanner after injecting a molecule containing a positron-emitting isotope. CERN-MEDICIS will produce new isotopes for imaging which will be able to show up cancerous tissues and destroy them by emitting local radiation as the isotopes decay. In the United States, a new radium-based drug which targets bone metastases is about to go on the market. Radium, which can be brought to bear at the cell level, is a potent weapon in the fight against certain types of cancer, and is opening the way to a new form of medicine. This is the direction that CERN has decided to follow through the CERN-MEDICIS* (Medical Isotopes...

Multipurpose, dual-mode imaging in the 3-5 μm range (MWIR) for artwork diagnostics: A systematic approach

Science.gov (United States)

Daffara, Claudia; Parisotto, Simone; Ambrosini, Dario

2018-05-01

We present a multi-purpose, dual-mode imaging method in the Mid-Wavelength Infrared (MWIR) range (from 3 μm to 5 μm) for a more efficient nondestructive analysis of artworks. Using a setup based on a MWIR thermal camera and multiple radiation sources, two radiometric image datasets are acquired in different acquisition modalities, the image in quasi-reflectance mode (TQR) and the thermal sequence in emission mode. Here, the advantages are: the complementarity of the information; the use of the quasi-reflectance map for calculating the emissivity map; the use of TQR map for a referentiation to the visible of the thermographic images. The concept of the method is presented, the practical feasibility is demonstrated through a custom imaging setup, the potentiality for the nondestructive analysis is shown on a notable application to cultural heritage. The method has been used as experimental tool in support of the restoration of the mural painting "Monocromo" by Leonardo da Vinci. Feedback from the operators and a comparison with some conventional diagnostic techniques is also given to underline the novelty and potentiality of the method.

Iirimaale : [luuletused] / Percy Bysshe Shelley ; tlk. Minni Nurme, Ants, Oras

Index Scriptorium Estoniae

Shelley, Percy Bysshe

2006-01-01

Sisu: Iirimaale ; Armastuse roos ; Harrietile ; Muutlikkus ; Vangist vabanenud sõbrale ; Minevik ; Byronile ; Kaduvik ; Laul : "Maa magas, külm kui surm..." ; Hümn vaimsele ilule ; Laul : "Too aeg on läind, mu armsam, läind..." ; Ozymandias ; Sonett ; India serenaad ; Leonardo da Vinci Medusa Firenze kunstikogus ; Armu filosoofia ; Ood läänetuulele ; Mary Shelleyle ; Laul briti meestele ; Uus rahvushümn ; Inglismaa 1819. a. ; Ära madu ärata ; Head ööd! ; Pilv ; Apolloni hümn ; Paani hümn ; Lõoke ; Vabadus ; Suvi ja talv ; Maailmarändurid ; Küsimus ; Aeg, mis hajus ; Ööle ; -le : "Üht sõna on labastand suud..." ; -le : "Kui kirg kord mööduks, aga jääks..." ; Õhtu Ponte al Marel, Pisas ; Mälestus ; Muusika ; Aeg ; Põgenejad ; Ma olla kuningas ei tahaks ; "Homne päev, kus oled praegu..." ; "Laps rahus kord on emaihus..." ; Üksik lind ; "Kui lamp pihuks langend..." ; Epitaaf ; Kutse Janeþile ; Tähed vilkusid valgust ; Leinalaul ; Pühendus. Eluloolisi andmeid autori kohta lk. 389

Applied gamma ray spectrometry and remote sensing in delineation of nepheline syenites in rift tectonic settings

Science.gov (United States)

Chiwona, Annock Gabriel; Manning, David A. C.; Gaulton, Rachel; Cortes, Joaquin A.

2017-04-01

The United Nations (2016) observes that 'Neglected Development Minerals' including industrial minerals such as nepheline syenites have great potential for sustainable development, yet their exploitation has not been equally promoted like high value minerals. Nepheline syenites have great potential as alternative potassium (K) silicate fertiliser, as well as a source of Rare Earths. Demand for K fertiliser keeps rising by 3-3.5% annually (Jena et al., 2014) due to increased need to replace K removal from the soil (Sheldrick et al., 2002). The situation is most critical in Sub-Sahara Africa where nutrient loss due to intensive farming accounts to 22kg N, 2.5 kg P and 15 kg of K per hectare annually (Keeble, 2012). Ironically, Africa with 15% of global population, which is also expected to double by 2040 (Manning, 2015), uses only 1.5% of global K fertiliser. In this study, we use recently acquired countrywide airborne geophysical gamma ray data of Malawi (Bates & Mechennef, 2013) and satellite remote sensing data to identify nepheline syenites, suitable as sources of K silicate fertilizer, in rift tectonic settings. Initial focus was on the East African Rift System (EARS) starting with Malawi. Results from these two techniques are compared with X-ray fluorescence (XRF) geochemical analyses of sample collected from fieldwork in some potential areas of Malawi. With lessons from the Rochagem movement (Theodoro & Leonardos, 2006), identification of novel alternative potash sources in Africa will greatly benefit millions of farmers in developing countries, especially in Sub Sahara Africa where fertiliser costs are very high. Considering that high-resolution airborne geophysical data is not available in many African countries due to high costs associated with data acquisition campaigns, alternative and effective remote sensing approaches for delineating nepheline syenite rocks are necessary. References: [1] Bates M & Mechennef, F (2013) Data Acquisition Report, Sander

Climate change and Southern theologies. A Latin American insight. (As alterações climáticas e as teologias do sul. Uma visão da América Latina - DOI: 10.5752/P.2175-5841.2010v8n17p45

Directory of Open Access Journals (Sweden)

Guilhermo Kerber

2010-09-01

Full Text Available A luta pela justiça e libertação encontra-se no centro dos movimentos e das reflexões teológicas latino-americanas há décadas. De que modo os movimentos sociais, os líderes políticos, os teólogos e os cristãos  tratam atualmente os desafios da mudança climática? Como eles os relacionam no contexto global? O presente artigo, baseado numa apresentação feita pelo autor para uma audiência nórdica européia apresenta a gênesis e a matriz das teologias latino-americanas e alguns de seus principais expoentes como Leonardo Boff, Juan Luis Segundo, Gustavo Gutierrez. Destaca também os novos empreendimentos que permitem uma abordagem dos assuntos relacionados às mudanças clímaticas, nomeados de teologias indígenas, eco-teologias, teologia e economia e teologia eco-feminista, construídos a partir das publicações de teólogos como Boff e Ivone Gebara. Em seguida, o autor destaca algumas das principais componentes desta relação, enfocando o imperativo ético de justiça climática, a renovada teologia da criação e da dimensão espiritual da abordagem.Palavras-chave: Teologia latino-americana, ecologia, alterações climáticas, ética, justiça Abstract The struggle for justice and liberation  has been at the core of mouvements and theological reflection in Latin America for decades. How do social mouvements, political leaders, theologians and Christians address nowadays the challenges of climate change? What ethical and spiritual avenues are proposed? How to relate them to the global context? The present article, based on a presentation made by the author to a Nordic European audience,  presents the genesis and matrix of Latin American theologies, some of their key authors like Leonardo Boff, Juan Luis Segundo, Gustavo Gutierrez and highlights new developments that have allowed an  approach to climate change issues, namely, indigenous theology, eco-theology, theology and economy and eco-feminist theology, building on work

Modernidad y humanismo civil: debates y perspectivas en torno a la tesis de Hans Baron

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Sverlij, Mariana

2013-12-01

Full Text Available Resumen En 1952, Hans Baron concluye su obra más importante: The Crisis of the early Italian Renaissance, publicada por la Universidad de Princeton en dos volúmenes, en 1955. En ella, Baron desarrolla el concepto de “humanismo civil”, desde el cual analiza el humanismo florentino del siglo XV y, en particular, la obra de Leonardo Bruni. Para Baron, los humanistas florentinos, en su lucha por la libertad de Florencia ante la amenaza de la Milán de los Visconti, articularon una novedosa relación entre intelectualidad y política. Este movimiento intelectual, al mismo tiempo, abrió las puertas al pensamiento moderno. Numerosas críticas recibió, desde entonces, el trabajo de Baron, centralmente, por parte de aquellos que reivindicaron las continuidades entre la Edad Media y el Renacimiento, así como también por parte de los que han leído críticamente el éxito que tuvo la Crisis en las academias norteamericanas y su influencia en la consolidación de la “ideología americana”. El artículo propone una revisión de la tesis de Baron así como de las controversias generadas en torno a ella, para, finalmente, esbozar la posibilidad de revisar el concepto de “humanismo civil” desde la obra de Leon Battista Alberti. Abstract In 1952, Hans Baron finished his most important work, The Crisis of the Early Italian Renaissance, published in two volumes by Princeton University in 1955. In this work, the author expounds on the concept of “civil humanism” which he uses to analyze the Florentine humanism of the fifteenth century, and in particular, Leonardo Bruni’s work. According to Baron, Florentine humanists, fighting for Florence’s freedom against the threat of Visconti’s Milan, developed a novel relationship between intellectualism and politics. This intellectual movement also paved the way for modern thought. Baron’s work has been critically reviewed many times since then, especially, by those who vindicated the

Search for life - VSV symposium 2011; an account of the wonderful symposium organised by the VSV 'Leonardo da Vinci'

NARCIS (Netherlands)

Noordam, N.

2011-01-01

On March 8th, the Search for Life symposium took place in the TU Delft Auditorium. A day full of new visions on the hunt for extraterrestrial life was programmed. The TU Delft Auditorium provided the perfect playground for the 180 attendants to exchange thoughts on this topic

Equity in health financing of Guangxi after China's universal health coverage: evidence based on health expenditure comparison in rural Guangxi Zhuang autonomous region from 2009 to 2013.

Science.gov (United States)

Qin, Xianjing; Luo, Hongye; Feng, Jun; Li, Yanning; Wei, Bo; Feng, Qiming

2017-09-29

Healthcare financing should be equitable. Fairness in financial contribution and protection against financial risk is based on the notion that every household should pay a fair share. Health policy makers have long been concerned with protecting people from the possibility that ill health will lead to catastrophic financial payments and subsequent impoverishment. A number of studies on health care financing equity have been conducted in some provinces of China, but in Guangxi, we found such observation is not enough. What is the situation in Guagnxi? A research on rural areas of Guangxi can add knowledge in this field and help improve the equity and efficiency of health financing, particularly in low-income citizens in rural countries, is a major concern in China's medical sector reform. Socio-economic characteristics and healthcare payment data were obtained from two rounds of household surveys conducted in 2009 (4634 respondents) and 2013 (3951 respondents). The contributions of funding sources were determined and a progressivity analysis of government healthcare subsidies was performed. Household consumption expenditure and total healthcare payments were calculated and incidence and intensity of catastrophic health payments were measured. Summary indices (concentration index, Kakwani index and Gini coefficient) were obtained for the sources of healthcare financing: indirect taxes, out of pocket payments, and social insurance contributions. The overall health-care financing system was regressive. In 2013, the Kakwani index was 0.0013, the vertical effect of all the three funding sources was 0.0001, and some values exceeded 100%, indicating that vertical inequity had a large influence on causing total health financing inequity. The headcount of catastrophic health payment declined sharply between 2009 and 2013, using total expenditure (from 7.3% to 1.2%) or non-food expenditure (from 26.1% to 7.5%) as the indicator of household capacity to pay. Our study demonstrates an inequitable distribution of government healthcare subsidies in China from 2009 to 2013, and the inequity was reduced, especially in rural areas. Future healthcare reforms in China should not only focus on expanding the coverage, but also on improving the equity of distribution of healthcare benefits.

HNA-3a and HNA-3b antigens among 9 ethnic populations and the Han population in Southwest China.

Science.gov (United States)

Ou, Guo-Jin; Su, Pin-Can; Yu, Hao; Ji, Xin; Liu, Fan; Wang, Sheng-Lan; Kong, Yu-Jie; Li, Ling; Wang, Jue; Liu, Zhong; Flegel, Willy Albert

2018-03-14

Human neutrophil antigen 3 (HNA-3) is encoded by the SLC44A2 gene. Antibodies against HNAs can cause severe, often fatal, transfusion reactions, known as transfusion-related acute lung injury, and neonatal neutropenia. We explored the 2 common HNA-3 variants in 9 ethnic populations residing in Sichuan and Yunnan provinces of China as compared to the Han population. We genotyped for SLC44A2 (rs2288904) by polymerase chain reaction sequence-based typing among blood donors, for a total of 2206 individuals in Yunnan and 376 in Sichuan. The SLC44A2*02 allele (HNA-3b antigen) frequency varied between 0.24 and 0.33 for all 9 ethnic populations in Yunnan, including Zhuang, Derung, Hani, Lisu, Bai, Miao, Dai, Naxi, and Yi. Specifically, the Yi ethnicity did not present an unusually great SLC44A2*02 frequency at any of the 4 locations examined in Yunnan. Except of the Yi ethnicity in Sichuan (0.40), the Han ethnicity, as the majority population group, had the greatest SLC44A2*02 frequency with 0.39 in Yunnan and 0.35 in Sichuan. The ethnic populations in Southwest China are not at an increased risk for anti-HNA3a compared to the Han population, with the possible exception of Yi in Sichuan. Our data, however, corroborated the known high prevalence of SLC44A2*02 in Han populations. Hence, the Han populations in Yunnan, Sichuan and elsewhere in China are at a comparatively great risk for developing HNA-3a antibodies.

Secular trends for age at spermarche among Chinese boys from 11 ethnic minorities, 1995–2010: a multiple cross-sectional study

Science.gov (United States)

Song, Yi; Ma, Jun; Li, Liu-Bai; Dong, Bin; Wang, Zhiqiang; Agardh, Anette

2016-01-01

Objectives We compared the differences in median age at spermarche among 11 ethnic minorities in 2010, estimated the trends regarding age at spermarche in different ethnic minorities from 1995 to 2010, and explored the association of spermarche with body mass index (BMI). Methods We used four cross-sectional Chinese National Surveys on Students’ Constitution and Health (CNSSCH, 1995, 2000, 2005 and 2010), and the total sample size was 40 113 children aged 11–18 years. The median age at spermarche of each ethnic minority was determined by using probit analysis. Logistic regression was used to assess the association of spermarche with BMI. Results In 2010, the ethnic minorities with earliest age at spermarche were Qiang (12.03 years), Zhuang (12.91 years) and Kirghiz (13.17 years); the three ethnic minorities with latest age at spermarche were Dong (14.73 years), Yao (14.60 years), and Naxi (14.36 years). From 1995 to 2010, age at spermarche showed a decline in almost each minority group except Yao and Dong. A higher BMI was associated with an increased likelihood of having reached spermarche after adjusting for age, regions or ethnic minorities. Conclusions A large variation in age at spermarche was observed among different ethnic minorities. The age at spermarche showed a downward shift in almost each of the 11 ethnic minorities with different patterns over time, and the children with higher BMI are more likely to enter puberty early. PMID:26911588