The extensive Late Cretaceous - Early Paleogene sedimentary succession of Seymour Island, N.E. Antarctic Peninsula offers an unparalleled opportunity to examine the evolutionary origins of a modern polar marine fauna. Some 38 modern Southern Ocean molluscan genera (26 gastropods and 12 bivalves), representing approximately 18% of the total modern benthic molluscan fauna, can now be traced back ...

Understanding the impacts of combined resource supplies on seedlings is critical to enable prediction of establishment growth, and forest dynamics. We investigated the effects of irradiance and water treatments on absolute growth, and relative growth rate (RGR) and its components, for seedlings of fourQuercus species differing in leaf habit and with a wide variation in seedmass. Plants were gro...

In this talk, we will survey some properties of the preconditioners introducedin [1,2] for the solution of the linear systems arising in time-dependent PDEs.Moreover, we will give theoretical results on the convergence rate of the under-lying preconditioned iterations using various Krylov subspace methods. Moreprecisely, if s is the size of the matrices related to the time-step ...

The Bose glass (BG) phase is the Griffiths region of the disordered Bose–Hubbard model (BHM), characterized by finite, quasi-superfluid clusters within a Mott insulating background. We propose to utilize this characterization to identify the complete zero-temperature phase diagram of the disordered BHM in d > 2 dimensions by analysing the geometric properties of what we call superfluid (SF) clu...

Wolof is the most widely spoken language in Senegal, but its effective use in education and training requires the development of NLP tools which is based on lexicon. Unfortunately such a lexicon does not exist and its implementation, requires prior linguistic study of the data structure of the language. However, such work has been done for the development of a lexical database for the Wolof lan...

Abstract This paper deals with the investigation of performance a nozzle used for intra-soil application liquid mineral fertilizers (LMF), determination range spray angle, fall droplet size, distribution characteristics, and substantiation its dependence on design parameters. The proposed has jet-impact channel deflector slot very compact overall dimensions. It can be mounted deep tillage knife...

The solution of ordinary and partial differential equations using implicit linear multistep formulas (LMF) is considered. More precisely, boundary value methods (BVMs), a class of methods based on implicit formulas will be taken into account in this paper. These methods require the solution of large and sparse linear systems M̂x = b. Block-circulant preconditioners have been proposed to solve th...

Lexicon schemas and their use are discussed in this paper from the perspective of lexicographers and field linguists. A variety of lexicon schemas have been developed, with goals ranging from computational lexicography (DATR) through archiving (LIFT, TEI) to standardization (LMF, FSR). A number of requirements for lexicon schemas are given. The lexicon schemas are introduced and compared to eac...

the aim of this study was to evaluate the effect of different potassium (k) and nitrogen (n) concentrations in nutrient solution and their interaction on growth and quality of tomato transplants. a full factorial experimental design was carried out with three potassium concentrations (1.5, 3 and 6 meql-1) and three nitrogen concentrations (1.5, 3 and 6 meql-1) for 27 days after seed germination...