Classification of snow cover and precipitation using SSM/I measurements: case studies

1992 ◽  
Vol 13 (17) ◽  
pp. 3349-3361 ◽  
Author(s):  
J. V. FIORE ◽  
N. C. GRODY
Keyword(s):  
2018 ◽  
Vol 10 (9) ◽  
pp. 3161 ◽  
Author(s):  
Pilar Portillo-Tarragona ◽  
Sabina Scarpellini ◽  
Jose Moneva ◽  
Jesus Valero-Gil ◽  
Alfonso Aranda-Usón

Interest from academics, policy–makers and practitioners in eco-innovation has increased as it enables the optimization of the use of natural resources improving competitiveness and it provides a conceptual framework for corporate sustainability. In this context, this paper provides an in-depth analysis and a wide classification of the specific indicators for the integrated measurement of eco-innovation projects in business from a resource-based view (RBV). The specific metrics were tested to measure the economic-financial and environmental resources and capabilities applied by five Spanish firms to eco-innovation projects, selected as case studies.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Silvia Cozzi ◽  
Andrea Martinuzzi ◽  
Vincenzo Della Mea

Abstract Background The International Classification of Functioning, Disability and Health (ICF) is a classification of health and health-related states developed by the World Health Organization (WHO) to provide a standard and unified language to be used as a reference model for the description of health and health-related states. The concept of functioning on which ICF is based is that of a “dynamic interaction between a person’s health condition, environmental factors and personal factors”. This overall model has been translated into a classification covering all the main components of functioning. However, the practical use of ICF has highlighted some formal problems, mainly concerning conceptual clarity and ontological coherence. Methods In the present work, we propose an initial ontological formalization of ICF beyond its current status, focusing specifically on the interaction between activities and participation and environmental factors. The formalization has been based on ontology engineering methods to drive goal and scope definition, knowledge acquisition, selection of an upper ontology for mapping, conceptual model definition and evaluation, and finally representation using the Ontology Web Language (OWL). Results A conceptual model has been defined in a graphical language that included 202 entities, when possible mapped to the SUMO upper ontology. The conceptual model has been validated against 60 case studies from the literature, plus 6 ad-hoc case studies. The model has been then represented using OWL. Conclusions This formalization might provide the basis for a revision of the ICF classification in line with current efforts made by WHO on the International Classification of Diseases and on the International Classification of Health Interventions.


2012 ◽  
Vol 09 (05) ◽  
pp. 1250049 ◽  
Author(s):  
GABRIEL BERCU ◽  
MIHAI POSTOLACHE

In our very recent published work [Int. J. Geom. Meth. Mod. Phys.8(4) (2011) 783–796], we considered the Riemannian manifold M = ℝ2 endowed with the warped metric ḡ(x, y) = diag (g(y), 1), where g is a positive function, of C∞-class, depending on the variable y only. Within this framework, we found a wide class of 2D gradient Ricci solitons and specialized our results to discuss some case studies. This research is a natural continuation, providing classification results for the subclass of steady gradient Ricci solitons.


Author(s):  
Herbert Kubicek ◽  
Ralf Cimander ◽  
Hans Jochen Scholl
Keyword(s):  

2021 ◽  
pp. 1-25
Author(s):  
Bao-Rong Lu

Abstract Potential environmental impact caused by pollen-mediated transgene flow from commercially cultivated genetically engineered (GE) crops to their non-GE crop counterparts and to their wild and weedy relatives has aroused tremendous biosafety concerns worldwide. This chapter provides information on the concept and classification of gene flow, the framework of the environmental biosafety assessment caused by pollen-mediated gene flow, and relevant case studies about transgene flow and its environmental impact. In general, gene flow refers to the movement of genes or genetic materials from a plant population to other populations. Crop-to- crop transgene flow at a considerable frequency may result in transgene 'contamination' of non-GE crops, causing potential food/feed biosafety problems and regional or international trade disputes. Crop-to- wild/weedy transgene flow may bring about environmental impacts, such as creating more invasive weeds, threatening local populations of wild relative species, or affecting genetic diversity of wild relatives, if the incorporated transgene can normally express in the recipient wild/weedy plants and significantly alter the fitness of the wild/weedy plants and populations. It is therefore necessary to establish a proper protocol to assess the potential environmental impacts caused by transgene flow. Three steps are important for assessing potential environment impacts of transgene flow to wild/weedy relatives: (i) to accurately measure the frequencies of transgene flow: (ii) to determine the expression level of a transgene incorporated in wild/weedy populations; and (iii) to estimate the fitness effect (benefit or cost) conferred by expression of a transgene in wild/weedy populations. The recently reported case of non-random allele transmission into GE and non-GE hybrid lineages or experimental populations challenges the traditional method of estimating the fitness effect for the assessment of environmental impacts of transgene flow. Furthermore, case studies of transgenic mitigation (TM) strategies illustrate ways that may reduce the impacts of a transgene on wild/weedy populations if crop-to- wild/weedy transgene flow is not preventable, such as in the case of gene flow from crop rice to its co-occurring weedy rice.


Author(s):  
Quentin Letesson ◽  
Carl Knappett

Urban settlements are often presented as a prominent feature of Bronze Age Crete (McEnroe 2010). And yet, summarizing what is actually known about Minoan towns is much more challenging than one would expect, especially for non-palatial settlements. Many studies are narrowly focused and often take one urban element out of context in all communities (e.g. villas, classification of houses, street system, etc.), hence undermining an understanding of the urban environment as a whole. Furthermore, research on Minoan urban contexts has long been characterized by a strong focus on polite or palatial architecture and very specific urban features related to it (such as the so-called west courts, raised walks, theatral areas, etc.), while most case-studies have often had a rather limited dataset. There are clearly exceptions but, to date, our knowledge of Minoan urban settlements is partly built on a large collection of heterogeneous and disparate information. As already noted some fifteen years ago, the ‘nature and character’ of urban settlements ‘has seen much less discussion, particularly at a generalized level’ (Branigan 2001a: vii; but see chapters 7 and 9). Of course, this situation is also inextricably linked to the nature of our datasets. Research is clearly constrained by the low quality of work in the initial decades of Minoan archaeology when somany of the larger exposures of townscapes on the island were made. And yet, for more than a century now, the archaeology of Bronze Age Crete has thrived:many excavations initiated at the beginning of the twentieth century have either continued or been revived, providing descriptions of numerous settlements of various sizes; new projects have unearthed fascinating buildings and sites; and many regions of the island have now been systematically surveyed. As a consequence, Minoan archaeologists have at their disposal a solid and varied dataset. Of course, sampling issues do exist. Firstly, remains of Neopalatial urban settlements clearly outnumber those of other periods.


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