1,720,962 research outputs found
Aspetti floristici e vegetazionali (Incluse schede Eterofillia delle piante acquatiche, Le torbiere, Le specie orientali e meridionali, Specie dealpinizzate).
No full text
7230 Torbiere basse alcaline.
Full text linkThe Habitat Directive requires Member States to implement surveillance of the conservation
status of habitats and species of Community Interest. The aim of this handbook is to outline the
methodological instruments for the implementation of a monitoring program of the Italian habitat
types, as required by art. 17 of the Habitats Directive, with particular regard to the data collection at
site level.
The European guidelines (Evans & Arvela, 2011. Assessment and reporting under Article 17 of
the Habitats Directive - Explanatory Notes & Guidelines for the period 2007-2012 -Final Draft.
European Topic Centre on Biological Diversity, p. 1-123) require the assessments to be carried out by
compiling information on specific parameters and at biogeographical scale. Each parameter is
considered separately, eventually combining all parameters in an evaluation matrix thus providing the
overall assessment.
For each habitat type several parameters have to be considered: “Area”, “Range”, “Structure and
Functions”, “Future Prospects”. While “Range” and “Future prospects” need to be assessed only at the
biogeographical scale, “Area” and “Structure and functions” can be assessed aggregating data
collected at the site level; in this handbook, for each habitat of community interest present in Italy, we
present monitoring forms for these two parameters.
Altogheter, the handbook contains 124 forms, referring to 10 Coastal and Halophytic Habitats; 11
Coastal Sand Dunes and Continental Dunes, 15 Freshwater Habitats, 5 Temperate Heath and Scrub, 11
Sclerophyllous Scrub (matorral), 15 Natural and Semi-natural Grassland Formations, 8 Raised Bogs
and Mires and Fens, 10 Rocky Habitats and Caves, 39 Forests.
Each monitoring form has been produced with the support of leading national experts and sent to
regional authorities for a review. The monitoring forms report the most effective available monitoring
techniques for collecting the required parameters and variables, and define operational guidance for
data collection.
The monitoring forms describe priority variables (e.g. vegetation-plot based analysis) that need to
be collected for complying with the Habitat Directive, and also indicate some optional or habitatspecific
variables (e.g. substrate condition, water quality, etc.).
The activities and methods suggested in this Manual are aimed at enabling the Regions and
Autonomous Provinces to implement monitoring activities based on the collection of harmonized data
by means of standardized technical protocols. A standardized basis of information is indeed essential
for producing comparable data and generating reliable assessments on the conservation status of each
habitat type at national level.
Some important elements, such as the Favourable Reference Values and optimal thresholds for
some of the parameters, are still under discussion at the European level and therefore will need to be
further clarified in the near future
Rapporti dinamici e spaziali nella vegetazione legata alle torbiere basse neutro-alcaline delle risorgive della Pianura padana orientale (Italia settentrionale).
No full textLe fitocenosi delle basse-torbiere delle risorgive veneto-friulane, i loro rapporti di successione dinamica e il loro ordine spaziale in relazione all'evoluzione delle polle di risorgiva
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
7140 Torbiere di transizione e instabili.
Full text linkThe Habitat Directive requires Member States to implement surveillance of the conservation
status of habitats and species of Community Interest. The aim of this handbook is to outline the
methodological instruments for the implementation of a monitoring program of the Italian habitat
types, as required by art. 17 of the Habitats Directive, with particular regard to the data collection at
site level.
The European guidelines (Evans & Arvela, 2011. Assessment and reporting under Article 17 of
the Habitats Directive - Explanatory Notes & Guidelines for the period 2007-2012 -Final Draft.
European Topic Centre on Biological Diversity, p. 1-123) require the assessments to be carried out by
compiling information on specific parameters and at biogeographical scale. Each parameter is
considered separately, eventually combining all parameters in an evaluation matrix thus providing the
overall assessment.
For each habitat type several parameters have to be considered: “Area”, “Range”, “Structure and
Functions”, “Future Prospects”. While “Range” and “Future prospects” need to be assessed only at the
biogeographical scale, “Area” and “Structure and functions” can be assessed aggregating data
collected at the site level; in this handbook, for each habitat of community interest present in Italy, we
present monitoring forms for these two parameters.
Altogheter, the handbook contains 124 forms, referring to 10 Coastal and Halophytic Habitats; 11
Coastal Sand Dunes and Continental Dunes, 15 Freshwater Habitats, 5 Temperate Heath and Scrub, 11
Sclerophyllous Scrub (matorral), 15 Natural and Semi-natural Grassland Formations, 8 Raised Bogs
and Mires and Fens, 10 Rocky Habitats and Caves, 39 Forests.
Each monitoring form has been produced with the support of leading national experts and sent to
regional authorities for a review. The monitoring forms report the most effective available monitoring
techniques for collecting the required parameters and variables, and define operational guidance for
data collection.
The monitoring forms describe priority variables (e.g. vegetation-plot based analysis) that need to
be collected for complying with the Habitat Directive, and also indicate some optional or habitatspecific
variables (e.g. substrate condition, water quality, etc.).
The activities and methods suggested in this Manual are aimed at enabling the Regions and
Autonomous Provinces to implement monitoring activities based on the collection of harmonized data
by means of standardized technical protocols. A standardized basis of information is indeed essential
for producing comparable data and generating reliable assessments on the conservation status of each
habitat type at national level.
Some important elements, such as the Favourable Reference Values and optimal thresholds for
some of the parameters, are still under discussion at the European level and therefore will need to be
further clarified in the near future
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
7110 *Torbiere alte attive.
Full text linkThe Habitat Directive requires Member States to implement surveillance of the conservation
status of habitats and species of Community Interest. The aim of this handbook is to outline the
methodological instruments for the implementation of a monitoring program of the Italian habitat
types, as required by art. 17 of the Habitats Directive, with particular regard to the data collection at
site level.
The European guidelines (Evans & Arvela, 2011. Assessment and reporting under Article 17 of
the Habitats Directive - Explanatory Notes & Guidelines for the period 2007-2012 -Final Draft.
European Topic Centre on Biological Diversity, p. 1-123) require the assessments to be carried out by
compiling information on specific parameters and at biogeographical scale. Each parameter is
considered separately, eventually combining all parameters in an evaluation matrix thus providing the
overall assessment.
For each habitat type several parameters have to be considered: “Area”, “Range”, “Structure and
Functions”, “Future Prospects”. While “Range” and “Future prospects” need to be assessed only at the
biogeographical scale, “Area” and “Structure and functions” can be assessed aggregating data
collected at the site level; in this handbook, for each habitat of community interest present in Italy, we
present monitoring forms for these two parameters.
Altogheter, the handbook contains 124 forms, referring to 10 Coastal and Halophytic Habitats; 11
Coastal Sand Dunes and Continental Dunes, 15 Freshwater Habitats, 5 Temperate Heath and Scrub, 11
Sclerophyllous Scrub (matorral), 15 Natural and Semi-natural Grassland Formations, 8 Raised Bogs
and Mires and Fens, 10 Rocky Habitats and Caves, 39 Forests.
Each monitoring form has been produced with the support of leading national experts and sent to
regional authorities for a review. The monitoring forms report the most effective available monitoring
techniques for collecting the required parameters and variables, and define operational guidance for
data collection.
The monitoring forms describe priority variables (e.g. vegetation-plot based analysis) that need to
be collected for complying with the Habitat Directive, and also indicate some optional or habitatspecific
variables (e.g. substrate condition, water quality, etc.).
The activities and methods suggested in this Manual are aimed at enabling the Regions and
Autonomous Provinces to implement monitoring activities based on the collection of harmonized data
by means of standardized technical protocols. A standardized basis of information is indeed essential
for producing comparable data and generating reliable assessments on the conservation status of each
habitat type at national level.
Some important elements, such as the Favourable Reference Values and optimal thresholds for
some of the parameters, are still under discussion at the European level and therefore will need to be
further clarified in the near future
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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