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No full textAbstract. 2 On the maximal number and the diameter of exceptional surgery slope sets [11] arXiv:1110.057
The Importance of Ficus (Moraceae) Trees for Tropical Forest Restoration
No full textABSTRACT Forest restoration is an increasingly important tool to offset and indeed reverse global deforestation rates. One low cost strategy to accelerate forest recovery is conserving scattered native trees that persist across disturbed landscapes and which may act as seedling recruitment foci. Ficus trees, which are considered to be critically important components of tropical ecosystems, may be particularly attractive to seed dispersers in that they produce large and nutritionally rewarding fruit crops. Here, we evaluate the effectiveness of remnant Ficus trees in inducing forest recovery compared to other common trees. We studied the sapling communities growing under 207 scattered trees, and collected data on seed rain for 55 trees in a modified landscape in Assam, India. We found that Ficus trees have more sapling species around them (species richness = 140.1 AE 9.9) than non-Ficus trees (79.5 AE 12.9), and significantly more saplings of shrub and large tree species. Sapling densities were twice as high under Ficus trees (median = 0.06/m 2 ) compared to non-Ficus (0.03/m 2 ), and seed rain densities of non-parent trees were significantly higher under Ficus trees (mean = 12.73 AE 3/m 2 /wk) than other fruit or non-zoochorous trees (2.19 AE 0.97/m 2 /wk). However, our regression model found that canopy area, used as a proxy for tree size, was the primary predictor of sapling density, followed by remnant tree type. These results suggest that large trees, and in particular large Ficus trees, may be more effective forest restoration agents than other remnant trees in disturbed landscapes, and therefore the conservation of these trees should be prioritized. Abstract in Hindi is available with the online material
Case Report Kikuchi-Fujimoto Disease: A Rare Cause of Fever in the Returning Traveller
No full textBackground. Kikuchi-Fujimoto disease (KFD) is typically a self-limited, benign illness which presents with fever and lymphadenopathy. It is rare in Caucasians, normally occurring in those of Asian descent. The aetiology is poorly understood, but it appears to be an autoimmune disorder with a possible infectious trigger. The clinical features are such that it is often mistaken for infectious diseases or malignancy. Case Report. Here we describe a case of a 36-year-old Asian man who presented following a recent trip to Delhi, India. He described fever, neck swelling, and arthralgia. Given his travel history an infectious cause for his presentation was presumed but multiple investigations were negative. Persistence of his symptoms led to lymph node biopsy to investigate for malignancy; surprisingly this revealed a necrotizing lymphadenitis in keeping with KFD. The patient made a full recovery with supportive treatment only. Conclusion. This case presented an opportunity to reflect on two common presenting complaintsfever in the returning traveller and unexplained lymphadenopathy. Both presentations have a wide range of aetiologies to consider. Although KFD is rare, it is an important diagnosis to make as it can prevent further expensive and invasive investigations, as well as potentially harmful treatments and psychological stress to the patient
Optimization Operations of Winter Maintenance of Airport
No full textAbstract The direct ensuring process of air transport by airport operators means to provide all co mponents for safety landings, movements and clearance of particular flights. The mentioned factors depend on the quality and quantity of airport personnel and technical resources. Financial turnover of the airport depends on the number of flights and passengers. The higher the frequency, the higher profit items, whether it is the airport taxes or business of the company. However, to ensure regular inco me, the airport co mpany has to ensure safe and regular air travel, especially without long-term and frequent limitat ions. These tasks are of part icular importance in the winter, when the weather -snow and ice limit the effects of airfield serviceability
15+ MILLION TOP 1% MOST CITED SCIENTIST 12.2% AUTHORS AND EDITORS FROM TOP 500 UNIVERSITIES Characterization of Biodiesel by Unconventional Methods: Photothermal Techniques
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Two-Weight Extrapolation on Lorentz Spaces
No full textWe give several two-weight extrapolation theorems on Lorentz spaces which extend the results of Cruz-Uribe and Pére
WEB APPLICATIONS: OUR IDEA FOR A DEVELOPMENT FRAMEWORK
Get PDFABSTRACT The increased complexity of Web applications makes us sure of the importance of making, before starting the development, a suitable organic design of such an application. Most conceptual design technologies are powerful analysis tools but are too far from the implementation and result almost useless to produce a complete work. We want to build a set of tools, able to fill the gap, letting the developer use the conceptual result of the W2000 analysis as a "ready to produce" methodology. In this Work In Progress, we refer about the first step of our research, in which, trying to verify the effectiveness of a methodology like W2000 [1] [2], based upon the well-known HDM model [3], we produce a pilot application using a standard technology. This experience will be the base for the framework we are thinking of, in order to guide the developer along all the development process, making the phases as automatic as possible. We describe the reasons and the goals of our work, during its working out, as well as the results we already got. We also express which will be the guidelines we are going to follow, moving on the second step