oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

3 ( 1 )

2019 ( 5 )

2018 ( 4 )

2017 ( 5 )

Custom range...

Search Results: 1 - 10 of 907 matches for " Giancarlo Scoccia "
All listed articles are free for downloading (OA Articles)
Page 1 /907
Display every page Item
Synthesis, Textural and Structural Properties of Calcium Hydroxide Nanoparticles in Hydro-Alcoholic Suspension  [PDF]
Giuliana Taglieri, Claudia Mondelli, Valeria Daniele, Emanuela Pusceddu, Giancarlo Scoccia
Advances in Materials Physics and Chemistry (AMPC) , 2014, DOI: 10.4236/ampc.2014.43008
Abstract: The use of calcium hydroxide nanoparticles (nanolime) in hydro-alcoholic suspensions represents a good enhancement in particular in the conservation of stones and surfaces of interest in Cultural Heritage. In this work we have produced nanolime by using our alternative method of synthesis (based on the use of a surfactant agent in the original solution) and we have studied, for the first time, structural and morphological properties of the synthesized nanoparticles directly in hydro-alcoholic suspension by synchrotron X-ray diffraction technique and transmission electron micro-scope observations. The particles characterization was performed on suspensions synthesized by varying surfactant content in the synthesis procedure and the water/alcohol ratio, too. We have found that only pure and crystalline Ca(OH)2 particles produced during the synthesis procedure and they maintained stably in suspension. These particles were hexagonally plated and regularly shaped with side dimension ranging from 300 to 40 nm or less; they had a platy habit and they presented, particularly with high alcohol content in suspension, a preferred orientation along z-axis.
A multiobjective optimization algorithm to solve nonlinear systems
M. C. Recchioni,A. Scoccia
Applied Mathematical Sciences , 2012,
Abstract:
A New Physical Interpretation of Archimedes’ Principle  [PDF]
Giancarlo Cavazzini
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.61020
Abstract: The interpretation of the equilibrium of a solid body floating on the surface of a liquid body is well known as the “Archimedes’ Principle”. Presently, the equilibrium of the solid body is interpreted as the result of the concurrence of two mechanical actions which are equivalent and opposite: the “weight” of the body, directed downwards, and the “Archimedes’ force” having a magnitude equivalent to the weight of the volume of liquid displaced by the volume of the body immersed in the liquid, directed upwards. We show arguments proving that this interpretation is not a correct physical interpretation. The same arguments show that a new different interpretation is a correct one. The new interpretation is based on the hypothesis that the “weight” of a body immersed in a body-medium is proportional to the volume of the body immersed in the body-medium and to the difference in density between the matter of the body and the matter of the body-medium. Accordingly, if a body is completely immersed in a body-medium, there is only one mechanical action on the body. This action may be downwards or upwards, or its magnitude may be zero. In this last case, the body is in equilibrium within the body-medium.
Inhibición del factor tisular por lipoproteínas de baja densidad*
Scoccia,Adriana Elena; Molinuevo,María Silvina;
Acta bioqu?-mica cl?-nica latinoamericana , 2006,
Abstract: the objective of the present work was to explore the electrophoretic mobility of the involved proteins and the kinetic of pro - coagulant activity inhibition, that allow us to propose a quantitative in vitro assay of potential clinical use. for the kinetic assay, commercial calcic thromboplastine was incubated with increasing volumes of redisolved - selectively precipitated ldl at 37 oc. then the prothrombine time in one step was made; the inhibitory activity and percentage of inhibition against a blank were calculated. the results show an increasing inhibition of pro-coagulant activity until 60 min between 0.013 - 0.026 nmol apob. the conditions for the assay of 30 samples of normolipemic individuals (ages between 30 - 70 years old) were selected on the basis of these results. the assay of % coagulation inhibition / nmol apob showed signficative differences for control group versus diabetic one. the protein electrophoresis showed two bands in pre-beta and beta positions corresponding to thromboplastine and ldl respectively at time zero. after 60 min of incubation one intense band corresponding to ldl - tissue factor complex can be observed. this work proposes a simple assay for the evaluation of ldl role in haemostatic control in pathological conditions, although further clinical assays are still required.
Large-Scale Structure Formation via Quantum Fluctuations and Gravitational Instability  [PDF]
Fernando Porcelli, Giancarlo Scibona
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.56058
Abstract:

This is a review of the status of the universe as described by the standard cosmological model combined with the inflationary paradigm. Their key features and predictions, consistent with the WMAP (Wilkinson Microwave Anisotropies Probe) and Planck Probe 2013 results, provide a significant mechanism to generate the primordial gravitational waves and the density perturbations which grow over time, and later become the large-scale structure of the universe—from the quantum fluctuations in the early era to the structure observed 13.7 billion later, our epoch. In the single field slow-roll paradigm, the primordial quantum fluctuations in the inflaton field itself translate into the curvature and density perturbations which grow over time via gravitational instability. High density regions continuously attract more matter from the surrounding space, the high density regions become more and more dense in time while depleting the low density regions. At late times the highest density regions peaks collapse into the large structure of the universe, whose gravitational instability effects are observed in the clustering features of galaxies in the sky. Thus, the origin of all structure in the universe probably comes from an early era where the universe was filled with a scalar field and nothing else.

A Small WWII Italian Bunker in Heraclea Minoa (Sicily)  [PDF]
Giancarlo T. Tomezzoli
Advances in Anthropology (AA) , 2015, DOI: 10.4236/aa.2015.53013
Abstract: In this article, a WWII small Italian bunker evocative of the emotions caused to the Sicilian population by the WWII terminated 70 years ago was presented. It is a bunker of type T Monoarma (i.e. bunkers for a single weapon), indicated also as type Ispettorato, and located on the Sicilian seashore, near the archaeological site of the ancient Greek city of Heraclea Minoa.
The German Base “the Bank” at M?rs-érigné (Anjou-FR)  [PDF]
Giancarlo T. Tomezzoli
Archaeological Discovery (AD) , 2016, DOI: 10.4236/ad.2016.41004
Abstract: In general, history, structure and life in the German military bases in France during the period of the Occupation are not well known because of the past military secrecy and the present lack of surviving witnesses and relevant documentation. However, in the case of the German base at M?rs-Erigné, much information is now available through the researches of Mr. Suquet and my ascertainment on the terrain of the preservation state of its vestiges following the memory duty proposed by Mr. Suquet.
The “Fliegerhorst” of Neubiberg (Munich-Germany)  [PDF]
Giancarlo T. Tomezzoli
Archaeological Discovery (AD) , 2016, DOI: 10.4236/ad.2016.42006
Abstract: The investigation of the organization, evolution and preservation state of the Neubiberg airfield near Munich (Bavaria-Germany), now at seventy years after the conclusion of the World War II, reveals that its preservation state is good but menaced by the installation of sport facilities and the possible further expansion of the areas of the municipalities of Neubiberg, Unterhaching and of the Federal Army University. On 1991 at the end of the military operations, the airfield has not resumed its original role of sport airfield that is the reason of its construction. This would have ensured its operative survival and the survival of a landing place for aircrafts in distress.
The German Defence System of the Grève de Goulven (Finistère—FR) during the World War II  [PDF]
Giancarlo T. Tomezzoli
Archaeological Discovery (AD) , 2016, DOI: 10.4236/ad.2016.44012
Abstract: In order to prevent a possible allied landing on the Grève de Goulven, the Organization Todt prepared for the Wehrmacht (German Army), in the frame of the Atlantikwall, many military structures crewed in a close defence line formed by Wn,s. close around the Grève and in a far defence line formed by St.P.s for directing and supporting the fire of the Wn.s. Purpose of this article is to identify said military structures and investigate their preservation state. The lack of an allied landing in the Grève and the prompt retreat, on 6-8 August 1944, of the German troops inside the Festung Brest, upon the arrival of the US Army, provided a unique occasion to visit German military structure practically intact, and had a unique occasion for investigating these structures, their preservation state and the interaction of the today’s population with them.
The German Radar Surveillance around the Aber Wrach during the WW II  [PDF]
Giancarlo T. Tomezzoli
Archaeological Discovery (AD) , 2017, DOI: 10.4236/ad.2017.51002
Abstract:

In a previous article (Tomezzoli, 2016), the issue of the German radar surveillance around the Aber Wrach in Brittany has been identified. Purpose of this article is to provide replies to said issue presenting the radar bases of Keringar Vihan, Kervingam-Kerdené and Vougo-Kerizoc. If the visits on the sites permitted to determine precisely the actual preservation state of these radar bases, the memories of the witnesses have enriched this information by identifying non-evident or completely disappeared structures, adding anecdotal and historical information and confirming the recites of archival documents. It is therefore evident that this successful dual procedure should be intensified and extended to all the future studies concerning the Atlantic Wall and, in general, to all the contemporary military structures, as long as surviving primary witnesses will be available. A megalithic stone circle discovered on the site of the radar base of Kervingam-Kerdené is presented.

Page 1 /907
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.