335 research outputs found
Global and Regional IUCN Red List Assessments: 15
In this contribution, the conservation status assessment of three vascular plants are presented according to IUCN categories and criteria. It includes the assessment of Oryza rhizomatis D.A.Vaughan and Saxifraga facchinii W.D.J.Koch at a global level and Helianthemum caput-felis Boiss. at a regional level
Global and Regional IUCN Red List Assessments: 11
In this contribution, the conservation status assessment of three vascular plants according to IUCN categories and criteria is presented. It includes the global assessment of Limonium parvifolium Tineo and Viscaria alpina (L.) G.Don, and the regional assessment of Rhazya stricta Decne. (Iraq)
A Comparison of U. S. and European University-Industry Relations in the Life Sciences
We draw on diverse data sets to compare the institutional organization of upstream life science research across the United States and Europe. Understanding cross-national differences in the organization of innovative labor in the life sciences requires attention to the structure and evolution of biomedical networks involving public research organizations (universities, government laboratories, nonprofit research institutes, and research hospitals), science-based biotechnology firms, and multinational pharmaceutical corporations. We use network visualization methods and correspondence analyses to demonstrate that innovative research in biomedicine has its origins in regional clusters in the United States and in European nations. But the scientific and organizational composition of these regions varies in consequential ways. In the United States, public research organizations and small firms conduct R&D across multiple therapeutic areas and stages of the development process. Ties within and across these regions link small firms and diverse public institutions, contributing to the development of a robust national network. In contrast, the European story is one of regional specialization with a less diverse group of public research organizations working in a smaller number of therapeutic areas. European institutes develop local connections to small firms working on similar scientific problems, while cross-national linkages of European regional clusters typically involve large pharmaceutical corporations. We show that the roles of large and small firms differ in the United States and Europe, arguing that the greater heterogeneity of the U. S. system is based on much closer integration of basic science and clinical development
Apparent diffusion coefficient by diffusion-weighted magnetic resonance imaging as a sole biomarker for staging and prognosis of gastric cancer
Objective: To investigate the role of apparent diffusion coefficient (ADC) from diffusion-weighted magnetic
resonance imaging (DW-MRI) when applied to the 7th TNM classification in the staging and prognosis of gastric
cancer (GC).
Methods: Between October 2009 and May 2014, a total of 89 patients with non-metastatic, biopsy proven GC
underwent 1.5T DW-MRI, and then treated with radical surgery. Tumor ADC was measured retrospectively and
compared with final histology following the 7th TNM staging (local invasion, nodal involvement and according to
the different groups — stage I, II and III). Kaplan-Meier curves were also generated. The follow-up period is
updated to May 2016.
Results: Median follow-up period was 33 months and 45/89 (51%) deaths from GC were observed. ADC was
significantly different both for local invasion and nodal involvement (P<0.001). Considering final histology as the
reference standard, a preoperative ADC cut-off of 1.80×10–3 mm2
/s could distinguish between stages I and II and an
ADC value of ≤1.36×10–3 mm2
/s was associated with stage III (P<0.001). Kaplan-Meier curves demonstrated that
the survival rates for the three prognostic groups were significantly different according to final histology and ADC
cut-offs (P<0.001).
Conclusions: ADC is different according to local invasion, nodal involvement and the 7th TNM stage groups
for GC, representing a potential, additional prognostic biomarker. The addition of DW-MRI could aid in the
staging and risk stratification of GC
Global and Regional IUCN Red List Assessments: 9
In this contribution, the conservation status assessment of three vascular plants according to IUCN categories and criteria are presented. It includes the assessment of Soldanella calabrella Kress at global level, and the regional assessment of Luzula pindica (Hausskn.) Chrtek & Křísa and Romulea variicolor Mifsud (Italy)
Is legal protection sufficient to ensure plant conservation? The Italian Red List of policy species as a case study
The conservation of species listed in the Bern Convention and European Directive 1992/43/EEC (so-called policy species) is mandatory for European Union (EU) countries. We assessed the conservation status of Italian policy species, based on the IUCN categories and criteria, to evaluate the effectiveness of existing protection measures at the national level. Among the 203 vascular plants, bryophytes and lichens evaluated, 41.9% are categorized as threatened, and one is already extinct, indicating that the protection measures for policy species are inadequate. Our results for the Italian policy species are consistent with those of an assessment at the EU level. Conservation priorities should be established at both the national and regional scales. An effective conservation strategy is needed, and in situ and ex situ actions focused on threatened species should be promoted
Integrative Taxonomy of Armeria arenaria (Plumbaginaceae), with a Special Focus on the Putative Subspecies Endemic to the Apennines
Three subspecies of Armeria arenaria are reported from Italy, two of which are considered endemic to the Apennines. The taxonomic value of these two taxa (A. arenaria subsp. marginata and A. arenaria subsp. apennina) is unclear. Moreover, the relationships between A. arenaria subsp. praecox and Northern Italian populations—currently ascribed to A. arenaria subsp. arenaria—have never been addressed. Accordingly, we used an integrated taxonomic approach, including morphometry, seed morpho–colorimetry, karyology, molecular systematics (psbA–trnH, trnQ–rps16, trnF–trnL, trnL–rpl32, and ITS region), and comparative niche analysis. According to our results, French–Northern Italian populations are clearly distinct from Apennine populations. In the first group, there is evidence which allows the recognition of A. arenaria s.str. (not occurring in Italy) and A. arenaria subsp. praecox. In the second group, the two putative taxa endemic to the Northern Apennines cannot be separated, so a single subspecies is here recognized: A. arenaria subsp. marginata
Global and regional IUCN red list assessments: 4
In this contribution, the conservation status assessments of three vascular plants are presented following to IUCN categories and criteria. It includes the assessment at global level of Saxifraga caprariae Mannocci, Ferretti, Mazzoncini & Viciani and S. montis-christi Mannocci, Ferretti, Mazzoncini & Viciani and the regional assessment of Halocnemum cruciatum (Forssk.) Tod. (Spain)
Conserving plant diversity in Europe: outcomes, criticisms and perspectives of the Habitats Directive application in Italy
Habitat Directive is the core strategy of nature conservation in Europe aiming at halting biodiversity loss. In this study the results of the third Italian assessment regarding the conservation status (CS) of plants listed in the Habitat Directive (Flora of community interest—FCI) was presented. Data was collected from several sources related to plant distribution, population data, habitats and pressures. Following the official European procedure, all parameters were evaluated and combined to give the CS of each taxon in each biogeographical region of presence. A comparison between the recent Italian IUCN and Reporting assessments was performed in order to evaluate the consistency between these two assessments. The official EU checklist comprises 113 Italian plant taxa, 107 of which were examined in this study. Our results showed a critical situation with only 34% of favourable CS, while 50% were unfavourable (40% inadequate plus 10% bad) and 16% unknown, in particular in the Mediterranean bioregion, where the unfavourable assessments reach the 65%. The results of the Report were consistent with those of the IUCN assessment, in which 41.9% of plants were threatened with extinction. This report highlighted some benefits and criticisms at national level, but it may have a wider significance. Although a general advance of knowledge, a great effort is needed to reach the Habitats Directive goals. Despite the limited resources, monitoring activities needs to be improved in order to close information gaps for several plants. A positive outcome was the development of a specific national project funded by the Italian Ministry of Environment, with the ambitious target to set future monitoring activities for FCI and optimize monitoring efforts
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