Search results for "MACRO"

IL NEONATO VARIAMENTE GROSSO

2009

Istituzioni di Economia Politica, Volume II, Macroeconomia, Seconda edizione

2008

Introduction - The "Rivista Internazionale di Scienze Sociali" in the Post-war Years (1945-1960)

2014

It takes two to tango

2003

Abstract In most taxa, females are more likely than males to care for offspring. Why? Ever since Trivers' landmark work, the answer has been traced back to sexual differences in pre-mating reproductive investment (unequal gamete size or anisogamy). However, recent work shows that parental investment theory has inadvertently ignored a profoundly simple fact of life: every offspring has a mother and father. Taking this into account completely changes how we should think about sex differences in parental care.

First assessment of total organic carbon/macrofauna relation in Sicilian coastal lagoons

2007

Sediment characteristics (Total organic carbon, C/N ratio, carbonates, grain size) and macrofaunal assemblages were studied in Sum- mer 2005 in 9 coastal lagoons of eastern Sicily (Italy) belonging to 3 study areas (Capo Peloro, Marinello and Vendicari). The diffe- rent ecosystems were selected upon their differences in geographical position, size, depth, water exchange, anthropic impact and expec- ted organic matter loading. The aim of this study was to explore the relationship between the Total organic carbon (TOC) content of se- diment and macrofaunal assemblages characteristics, as indicated by the Study Group on Benthic Indicators of IOC/UNESCO (http: //ioc.unesco.org/benthicindicators…

Plasmonic Focusing Reduces Ensemble Linewidth of Silver-Coated Gold Nanorods

2008

Silver coating gold nanorods reduces the ensemble plasmon line width by changing the relation connecting particle shape and plasmon resonance wavelength. This change, we term "plasmonic focusing", leads to less variation of resonance wavelengths for the same particle size distribution. We also find smaller single particle linewidth comparing resonances at the same wavelength but show that this does not contribute to the ensemble linewidth narrowing.

The region 0.7615-0.796 m.u. of the HSV-1 genome determines suppression of humoral antibody formation against herpes simplex virus.

1991

The influence of genetic properties of parts of the HSV-1 genome on suppression of humoral antibody formation was investigated by using intratypic recombinants. The deleted strain HFEM (HSV-1) induces suppression. The MluI DNA fragment (coordinates 0.7615–0.796 m.u.) derived from the antibody inducing strain F1 (HSV-1) was transfected into the deleted strain HFEM to produce the recombinant virus R-MlCI and shown to restore antibody formation, as demonstrated by neutralization- and ELISA-tests. The intratypic recombinant viruses R-15, R-19 and R-26, produced by transfection of the Bam HI DNA-fragment B (0.738–0.809 m.u.) of strain Fl into the deleted strain HFEM, resulted in antibody formati…

Sistemi Biologici e Beni Culturali

2012

Il Convegno Nazionale “Sistemi Biologici e Beni Culturali tenutosi a Palermo, ha visto la partecipazione di studiosi ed esperti provenienti da tutta Italia. Organizzato dall’Università degli Studi di Palermo (Dipartimento di Biologia Ambientale e Biodiversità), dall’AIAr (Associazione Italiana di Archeometria) e dal C.R.P.R. (Centro Regionale per la Progettazione e il Restauro, Regione Siciliana) e con il concreto supporto della BioNat – Italia (Palermo). Il comitato scientifico del Convegno ha visto la partecipazione di docenti degli Atenei di Palermo, Catania, Messina, Milano - Statale, Parma, Roma-Tor Vergata, Siena ed esperti del CNR-Firenze e della Soprintendenza Beni Archeologici dell…

Supramolecular polymerization of electronically complementary linear motifs: anti-cooperativity by attenuated growth†

2021

Anti-cooperative supramolecular polymerization by attenuated growth exhibited by self-assembling units of two electron-donor benzo[1,2-b:4,5-b′]dithiophene (BDT) derivatives (compounds 1a and 1b) and the electron-acceptor 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) (compound 2) is reported. Despite the apparent cooperative mechanism of 1 and 2, AFM imaging and SAXS measurements reveal the formation of small aggregates that suggest the operation of an anti-cooperative mechanism strongly conditioned by an attenuated growth. In this mechanism, the formation of the nuclei is favoured over the subsequent addition of monomeric units to the aggregate, which finally results in short aggrega…

Being successful in the world of narrow opportunities: transmission patterns of the trematode Ichthyocotylurus pileatus.

2009

SUMMARYParasites with complex life cycles face 2 major challenges for transmission in northern latitudes. They have to cope with the general unpredictability associated with the series of transmission events required for completion of the cycle, and transmission has to be completed within a narrow temporal window because of strong seasonality. Despite this, some parasites show high transmission success, suggesting the operation of effective transmission mechanisms. We explored the transmission of Ichthyocotylurus pileatus (Trematoda) from its snail (Valvata macrostoma) to fish (Perca fluviatilis) hosts by examining some key characteristics in the dynamics of the cercarial emergence from sna…