In this paper we consider the Schelling social segregation model for two different populations. In Schelling's model, segregation appears as a consequence of discrimination, measured by the local difference between two populations. For that, the model defines a tolerance criterion on the neighborhood of an individual, indicating wether the individual is able to move to a new place or not. Next,...

In 2018 Deza et al. proved the NP-completeness of deciding wether there exists a 3-uniform hypergraph compatible with given degree sequence. A well known result Erdos and Gallai (1960) shows that same problem related to graphs can be solved in polynomial time. So, it becomes relevant detect classes uniform hypergraphs are reconstructible particular, our study concerns defined proof Those constr...

A technique was used to monitor continuously ruminal pH using a strip-chart recording pH meter. Ruminal pH measurements were made in four ruminal-cannulated crossbred wether lambs (ag initial weight, 42.5 kg). For l.5 h daily, lambs were given ad libitum access to 50% concentrate-50% chopped orchardgrass hay diets supplements with 0, l.5, 3.0 and 4.5% sodium bicarbonate (NaHCO3). A split-plot L...

the present research applies the information of major plans for predicting drug consumption in 1991/1992 as well as the data of census in 1990 to evaluate this assumption that “ some arrestees’ sturctural weakness-related factors” contribute in using cocaine and other opiates. this research which applies non-linear modelling techniques، reviews the effectivity of the social control factors as w...

Wether teaching in a classroom or a Massive Online Open Course it is crucial to present the material in a way that benefits the audience as a whole. We identify two important tasks to solve towards this objective; (1.) group students so that they can maximally benefit from peer interaction and (2.) find an optimal schedule of the educational material for each group. Thus, in this paper we solve...

Although significant advances have been made recently in the Question Answering technology, more steps have to be undertaken in order to obtain better results. Moreover, the best systems at the CLEF and TREC evaluation exercises are very complex systems based on custom-built, expensive ontologies whose aim is to provide the systems with encyclopedic knowledge. In this paper we investigated the ...

Our objective was to evaluate the effects of substituting feather meal (FM) for soybean meal (SBM) on ruminal fiber fermentation, lamb gain, blood metabolite profiles, and wool growth. A SBM supplement was formulated, and FM replaced either 33% (33FM), 66% (66FM), or 100% (FMS) of the SBM protein. Four ruminally cannulated wethers were used in a 4 x 4 Latin square design to study in situ rumina...

The present study examines wether self-controlled practice enhances motor learning and self-efficacy beliefs more when it refers to an aspect of the learning situation which is preferred by the learner than to an aspect which is not. Participants (N = 52) practiced the forhand top spin stroke in table tennis and were randomly assigned to one of four groups. Two groups of learners (self-control)...