Search results for "FLAG"

Isolation of the silicatein-α interactor silintaphin-2 by a novel solid-phase pull-down assay.

2011

The skeleton of siliceous sponges consists of amorphous biogenous silica (biosilica). Biosilica formation is driven enzymatically by means of silicatein(s). During this unique process of enzymatic polycondensation, skeletal elements (spicules) that enfold a central proteinaceous structure (axial filament), mainly comprising silicatein, are formed. However, only the concerted action of silicatein and other proteins can explain the genetically controlled diversity of spicular morphotypes, from simple rods with pointed ends to intricate structures with up to six rays. With the scaffold protein silintaphin-1, a first silicatein interactor that facilitates the formation of the axial filament and…

First description of nonmotileVibrio vulnificusstrains virulent for eels

2007

Nonmotile Vibrio vulnificus strains were isolated as pure cultures from body ulcers and internal organs of wild diseased European eels caught in a Mediterranean freshwater coastal lagoon. All 54 V. vulnificus isolates were nonmotile, indole-, ornithine decarboxilase-, mannitol- and cellobiose-positive, developed the opaque variant in culture, belonged to the O-antigenic serovar A and were highly virulent for eels by both intraperitoneal injection and immersion challenges. The nonmotile phenotype found in our V. vulnificus isolates was stable: nonmotile cells were always recovered from experimentally infected eels; no variation in the immobility of the V. vulnificus cells was observed for re…

COMMENTO AGLI ARTT. 379,380,381,382,383,384, 385 c.p.p.

2008

Le sequenze procedimentali “obbligate” in caso di trasgressione dell’ordine di espulsione o di allontanamento ex artt. 235 e 312 c.p.

2008

Le disposizioni introdotte nel codice penale e in quello di rito, dal c.d. "pacchetto sicurezza" del 2008, si pongono - per certi versi - sul solco di modifiche precedentemente apportate dal legislatore con la c.d. "legge Bossi-Fini", proseguendo così un cammino già intrapreso. Nell'affrontare le principali innovazioni in tema di "lotta all'immigrazione illegale", l'Autore si sofferma principalmente su quelle riguardanti l'espulsione, nella sua veste di misura di sicurezza, la fattispecie dell'arresto anche fuori dai casi di flagranza, nonché le dinamiche del giudizio direttissimo, "tipico" e "atipico".

L’estetica del camuffamento animale. Riflessioni sul mimetismo biologico

2016

This article wants to investigate the logic of mimicry and their communicative function in animal life adopting an aesthetical perspective. The relationship between appearance and not-appearance, between the act of making itself visible and the act of disguising itself, is investigated starting from the morphological thought of the Swiss biologist Adolf Portmann, in a continuous dialogue with great thinkers of past and actual time – Johann Wolfgang Goethe, Hannah Arendt and Roger Caillois – and with the artistic illustrations of the American painter Abbott Thayer, concerned with the laws of color camouflage. This productive relationship among biology, aesthetics and artistic practice allows…

Effects of ocean acidification on embryonic respiration and development of a temperate wrasse living along a natural CO2 gradient

2016

Volcanic CO2 seeps provide opportunities to investigate the effects of ocean acidification on organisms in the wild. To understand the influence of increasing CO2 concentrations on the metabolic rate (oxygen consumption) and the development of ocellated wrasse early life stages, we ran two field experiments, collecting embryos from nesting sites with different partial pressures of CO2 [pCO2; ambient (400 µatm) and high (800-1000 µatm)] and reciprocally transplanting embryos from ambient- to high-CO2 sites for 30 h. Ocellated wrasse offspring brooded in different CO2 conditions had similar responses, but after transplanting portions of nests to the high-CO2 site, embryos from parents that sp…

Prokaryotic symbiotic consortia and the origin of nucleated cells: A critical review of Lynn Margulis hypothesis.

2021

The publication in the late 1960s of Lynn Margulis endosymbiotic proposal is a scientific milestone that brought to the fore of evolutionary discussions the issue of the origin of nucleated cells. Although it is true that the times were ripe, the timely publication of Lynn Margulis' original paper was the product of an intellectually bold 29-years old scientist, who based on the critical analysis of the available scientific information produced an all-encompassing, sophisticated narrative scheme on the origin of eukaryotic cells as a result of the evolution of prokaryotic consortia and, in bold intellectual stroke, put it all in the context of planetary evolution. A critical historical reas…

Data from: Gray plumage color is more cryptic than brown in snowy landscapes in a resident color polymorphic bird

2020

Camouflage may promote fitness of given phenotypes in different environments. The tawny owl (Strix aluco) is a colour polymorphic species with a grey and brown morph resident in the Western Palearctic. A strong selection pressure against the brown morph during snowy and cold winters has been documented earlier but the selection mechanisms remain unresolved. Here we hypothesise that selection favors the grey morph because it is better camouflaged against predators and mobbers in snowy conditions compared to the brown one. We conducted an online citizen science experiment where volunteers were asked to locate a grey or a brown tawny owl specimen from pictures taken in snowy and snowless lands…

Hydrodynamics with spin in bacterial suspensions

2016

We describe a new kind of self-propelling motion of bacteria based on the cooperative action of rotating flagella on the surface of bacteria. Describing the ensemble of rotating flagella in the framework of the hydrodynamics with spin the reciprocal theorem of Stokesian hydrodynamics is generalized accordingly. The velocity of the self-propulsion is expressed in terms of the characteristics of the vector field of flagella orientation and it is shown that unusually high velocities of \textit{Thiovulum majus} bacteria may be explained by the cooperative action of the rotating flagella. The expressions obtained enable us to estimate the torque created by the rotary motors of the bacterium and …

The European Flag According to Paolo Fabbri

2021

Too often we consider symbols in our cultures to be indivisible monoliths that can only be interpreted through the connotations they take on over time. This is due, on one hand, to their compact nature, the correspondence between the planes of expression and content that make them appear solid, impossible to break down. However, it is also true that in the majority of cases we inherit ready-made symbols that seem to have been born with their current shape, with no hint as to the processes that have made them this way. As a rule, there are so many, varied meanings of the word “symbol” that, in the absence of a clear, consensual hypothesis on what a symbol is, they can be difficult to read. A…