numerical taxonomy and seed storage protein analysis of hyoscyamus species of iran was carried out with the aim to illustrate species inter-relationship and to check the sub-generic taxonomic treatment proposed for the genus. cluster analysis of morphological and protein data grouped the species in three separate clusters which supports the relationships of h. niger with h. reticulatus and h. k...

Traversable wormholes have traditionally been viewed as intrinsically topological entities in some multiply connected spacetime. Here, we show that topology is too limited a tool to accurately characterize a generic traversable wormhole: in general one needs geometric information to detect the presence of a wormhole, or more precisely to locate the wormhole throat. For an arbitrary static space...

This study investigated the nature of internal representations constructed from learning concrete or generic instantiations of an abstract concept. Undergraduate students learned instantiations of a mathematical group that were generic, communicated concreteness relevant to the concept, or communicated concreteness irrelevant to the concept. Students who learned relevantly concrete instantiatio...

We discuss how to embed one human body structure on a given human body shape data. The shape data can come from any source, for example designer’s tool, or range data scanner (e.g. laser scanner). The main idea is to create approximated body shape starting from generic human by photo-cloning methodology and then make shape-correction using the 3D shape data. In addition, we also describe how to...

In this paper we propose a new means to model and operate on nested arrays that allows for a high level of abstraction without introducing a performance penalty. We achieve this by using a nesting structure on array types which allows us to shift the nesting information of arrays from the runtime representation level to the type system level. This information can then be exploited for generic f...

As a contribution to the gait generation and motion control of quadrupeds a concept has been formulated that in its modular structure can be easily adapted and extended. It is generally suitable for quadrupedal walking machines using statically stable gaits (as shown for the four-legged robot ALDURO) and only a few modules need to be adapted to the machine specific topology.

This paper presents a system to extract the logical structure of handwritten mail documents. It consists in two joined tasks: the segmentation of documents into blocks and the labeling of such blocks. The main considered label classes are: addressee details, sender details, date, subject, text body, signature. This work has to face with difficulties of unconstrained handwritten documents: varia...

We examine a community structure in random graphs of size n and link probability p/n determined with the Newman greedy optimization of modularity. Calculations show that for p<1 communities are nearly identical with clusters. For p=1 the average sizes of a community s(av) and of the giant community s(g) show a power-law increase s(av)∼n(α') and s(g)∼n(α). From numerical results we estimate α'≈0...

Using a perturbative expansion for weak synaptic weights and weak sources of randomness, we calculate the correlation structure of neural networks with generic connectivity matrices. In detail, the perturbative parameters are the mean and the standard deviation of the synaptic weights, together with the standard deviations of the background noise of the membrane potentials and of their initial ...

This paper considers the structure of the injective objects IVn in the category F of functors between F2-vector spaces. A co-Weyl object Jλ is defined, for each simple functor Fλ in F . A functor is defined to be J-good if it admits a finite filtration of which the quotients are co-Weyl objects. Properties of J-good functors are considered and it is shown that the indecomposable injectives in F...