Search results for "Section"

Herbicide site specific spraying: use of simulations to study the impact of section width

2019

International audience; Site specific spraying is one way to reduce the amount of herbicide required to control weeds. The impact of boom section width was investigated by using simulated weed infestation maps with various weed coverage rates. Herbicide applications were simulated combining these virtual maps with various boom sections widths and various theoretical spray patterns. The objective was to quantify the herbicide reduction possibilities and potential under-application areas. Simulation derived results are analyzed using three indicators: i) the ratio between herbicide amount in the case of a targeted application and the amount deposited in the case of a full application, ii) the…

Photosynthesis mediates expression of Sorghum bicolor transporters in arbuscular mycorrhizal symbiosis

2014

Disentangling scattered charcoal assemblages for palimpsest dissection: Spatial analyses from El Salt Stratigraphic Unit Xb (Eastern Iberia)

2017

International audience; Disentangling scattered charcoal assemblages for palimpsest dissection: spatial analyses from El Salt Stratigraphic unit Xb (Eastern Iberia)

L'anonymat du donneur de gamètes face au droit d'accès aux archives

2016

International audience; En l’espèce, le Conseil d’État apprécie si le refus de communiquer des informations et documents concernant un donneur de gamètes porte atteinte au droit d’accès aux archives invoqué par la personne conçue grâce à ce don. Le juge considère que le refus, fondé sur le respect du principe d’anonymat, ne fait pas obstacle à son droit d’accès dans la mesure où le délai de communicabilité n’a pas expiré.

La gestion du temps en grande section de maternelle : variété des pratiques, variété des apprentissages.

2003

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A DISSECTION’S GUIDE TO HUMAN ABDOMINAL CAVITY

2020

The purpose of this article is to show the abdominal cavity’s dissection method. In the summer of 2018 a group of students from the University of Palermo, who had already taken the anatomy exam and had a good knowledge of English, went for a period of two weeks to do a dissection course at the University of Malta. The students dissected skin, subcutaneously, muscle layers, parietal peritoneum and abdominal organs. This work proves to be a small dissection guide for young medical students who want to learn the main bases of dissection and important information for topographical anatomy.

Sequence of vascular patterning and gene transcription in the chick chorioallantoic membrane (15.1)

2014

Introduction: The chick chorioallantoic membrane (CAM) is a well-established model of both vasculogenesis and angiogenesis; however, little is known about the genetic control of vascular patterning in the CAM. Methods: Using recent advances in chicken genomics, we investigated the relative expression of 84 angiogenesis genes during the growth and remodeling of the CAM microcirculatory network. Chick embryos, cultured ex ovo, were studied during embryonic development days (EDD) 8-14. UV laser microdissection was used to harvest capillary plexus and 1st, 2nd, and 3rd order conducting vessels for qRT-PCR analysis. Results: Two transcription peaks were observed between EDD 8 and 14. The first p…

Ascending Aorta Resection and End-to-End Anastomosis: Redistribution of Wall Shear Stress Induced by a Bioprosthetic Heart Valve

2020

Although aortic resection and end-to-end anastomosis are applied to repair ascending aortic aneurysm, there is a lack of information on the late risk of post-operative complications, such as aortic dissection and aneurysmal re-dilatation. It is recognized that altered hemodynamic forces exerted on an aortic wall play an important role on dissection and aneurysm formation. We present a case in which the hemodynamic forces were investigated prior and after repair of an ascending aorta treated by resection with end-to-end anastomosis and a bioprosthetic heart valve. Post-operative wall shear stress was redistributed uniformly along the vessel circumference, and this may suggest a reduced risk …

Le malte idrauliche dell’Acquedotto Romano di Termini Imerese

2009

Aim of this paper is the characterization of ancient hydraulic mortars from the roman water supply system of Thermae (I-II cent. A.D.), known as “Aqua Cornelia” and "Figurella" aqueducts, more than 10 kilometers long. Because of malfunctioning of the "Barratina" siphon, major changes in the original adduction system were realized in several steps. Mortar samples were taken from both channels lining materials and structural elements, in order to contribute to answer some questions about the construction phases of the aqueduct. The materials characterization was performed by means of XRD analysis, optical microscopy, microRaman spectroscopy and simultaneous thermal analysis. The latter is a u…

Post-operative computed tomography imaging evaluation of ascending aorta surgery

2021

Ascending thoracic aorta disease is often a life-threatening condition. Aortic aneurysm and aortic dissection are the most frequent ascending aorta diseases requiring surgical intervention. Surgical repair techniques of the ascending aorta are various; they include reconstruction of the ascending aorta by using a graft with or without a prosthetic valve, reconstruction with a composite artificial graft or using a biological graft, and reconstruction of the ascending aorta with a composite graft preserving the native valve and arch repair. The radiologist plays a key role in the identification of post-operative complications; differentiation from normal postoperative findings is fundamental.…