1,973 research outputs found
LONG TIME BEHAVIOR OF A SHALLOW WATER MODEL FOR A BASIN WITH VARYING BOTTOM TOPOGRAPHY
No full textWe study the long time behavior of a shallow water model introduced by Levermore and Sammartino to describe the motion of a viscous incompressible fluid confined in a basin with topography. Here we prove the existence of a global attractor and give an estimate on its Hausdorff and fractal dimension
Background values of potential toxic metals in the Pisa coastal plain: an example of integrated sedimentological and geochemical study
No full textDetailed geochemical characterization of Quaternary deposits between Serchio
and Arno river mouths enables the construction of a reliable geochemical map
for selected potentially toxic metals in the Pisa coastal plain. Following the
procedures carri ed out for the compilation of the Pedogeochemical Ma p of
Emilia-Romagna (1:250,000 scale), 60 samples, col lected at 30 selected sites
within depths of 20-30 cm and 100-120 cm, respectively, were sampled by
hand-drill ing and form the geochemical dataset. Geomorpholog ica l and
sedimentological investigations allowed the characterization of the study sites
in terms of facies associations.
Zr, Fe203, Al203, Ca O and Sr appear to represent reliable indicators of soil
alteration, allowing an obvious distinction between i) late Pleistocene units,
corresponding to the Coltano sands; ii) Holocene (pre-Roman) deposits,
including the channel-levee systems of Arno and Serchio rivers, and iii) recent
sediments of alluvial and coastal origin. Subtle geochemical indicators also
enable the differentiation of so il alteration at top of major beach-ridge systems
aligned parai lei to the present shoreline, thus providing an obvious indication of
coasta l progradation during the late Holocene. Arno and Serchio fluvial deposits
exhibit similar geochemical compositions. Ni/Y and MgO, however, appear as
valuable indicators for their distinction in terms of sediment provenance.
Systematic variability in chromium and nickel concentrations is observed in the
study area across the three major facies associations (beach-ridge sands, levee
and crevasse-splay silty sands, floodplain silts and clays), with increasing metal
contents within the finer-grained deposits. This reflects a primary contro! on
sediment composit ion by selection processes during t ransport. Beach-ridge
sands, in particular, display a high compositional variability that could reflect
an influence of transport pathways on the spatial distribution of metals. A
similar contro! of grain size o n meta l distribution is shown by zinc and,
subordinately, by copper and lead.
This study shows that a geochemical ma p constructed on a geologica! basis
may furnish a real istic depiction of spatial metal distribution within superficial
sediments, providing a powerful tool for planning environmental strategies.
Similarly to what recently documented from wide areas of Romagna coastal
pia in (Amorosi & Sammartino, 2005; 2007) and Parma alluvial plain
(Sammartino et al. , 2007), chromium (and subordinately Ni) in the Pisa coastal
plain may display very high natura! concentrations, locally exceeding the
pollution thresholds defined by law. As a consequence, evidence for
contamination should not be established before detailed geochemical
characterization of fa ci es is undertaken. Similarly, limiting values for meta l
concentrations should not ignore the actual background values, which are
primarily a function of provenance and grain size
Peter Sammartino and Administrators
No full textA photo of Peter Sammartino with Fairleigh Dickinson administrators
Peter and Sally Sammartino 1941
No full textPhotograph of Peter and Sally Sammartino sitting in the back of a car, and back of the photograph's frame. The car has a sign on its door that reads: "Dr. and Mrs. Peter Sammartino. Founders. Fairleigh Dickinson University. 1941." Printed, framed and given to the Sammartinos in 1981 by the Rutherford Student Newspaper The Spectator [information from back of the photograph's frame]. Scanned in 2017
Sigmund Spaeth with Peter Sammartino
No full textDr. Sammartino with Sigmund Spaeth during a visit to Fairleigh Dickinson
Peter Sammartino Standing With Chair
No full textPortrait of Peter Sammartino, the university's inaugural president, standing with a chair
Myrna Loy with Peter and Sally Sammartino
No full textMyrna Loy with Dr. Sammartino during a visit to Fairleigh Dickinson
Dr. Sammartino Receiving NJ Historical Society Citation
No full textDr. Peter Sammartino, former President of FDU, receives a citation from the NJ Historical Societ
- …
