We retrace here the foundation of the "Nogent School". What were its main scientific orientations? Two fields of research dominated Etienne Wolff's work: Experimental Teratology and Intersexuality. Nicole Le Douarin's work , in one sense, started with a remarkable tool which is the quail / chick marker system. She applied this system to the study of in vivo migration of cells during embryonic l...

Background: There is limited empirical research on the role of individuals’ career orientations, digital-era world work awareness and agility mindset in purposive exploration. Objectives: The objective this study was to assess extent which orientations contribute a mindset. Method: cross-sectional quantitative survey involved sample 486 adult learners (65% women; 35% men; 85% black learners; 15...

Acyclic orientations with exactly one source and one sink ~ the so-called bipolar orientations _ arise in many graph algorithms and specially in graph drawing. The fundamental properties of these orientations are explored in terms of circuits, cocircuits and also in terms of “angles” in the planar case. Classical results get here new simple proofs; new results concern the extension of partial o...

Unique-sink orientations (USOs) are an abstract class of orientations of the ncube graph. We consider some classes of USOs that are of interest in connection with the linear complementarity problem. We summarise old and show new lower and upper bounds on the sizes of some such classes. Furthermore, we provide a characterisation of K-matrices in terms of their corresponding USOs.

We study graph orientations that minimize the entropy of the in-degree sequence. The problem of finding such an orientation is an interesting special case of the minimum entropy set cover problem previously studied by Halperin and Karp (Theoret. Comput. Sci., 2005) and by the current authors (Algorithmica, to appear). We prove that the minimum entropy orientation problem is NP-hard even if the ...

Visual attention has long been known to be drawn to stimuli that are physically salient or congruent with task-specific goals. Several recent studies have shown that attention is also captured by stimuli that are neither salient nor task-relevant, but that are rendered in a color that has previously been associated with reward. We investigated whether another feature dimension-orientation-can b...

Long Island glacigenic surface deposits, where exposed, are ideal for geologic field studies of Pleistocene glacial settings. Numerous outcrop exposures, found scattered throughout the island, delineate many of the deposit types associated with a full spectrum of glacial facies currently observable at active continental ice sheet margins. By directly field sampling axial orientations of a numbe...

Classroom climate has been demonstrated to associate with individuals’ various attributes and outcomes. Recent research has also confirmed students’ goal orientations deserving to be recognized as a significant achievement-related outcome. In this line, the current study intended to examine the relationship between Iranian EFL students’ perceptions of their classroom environment and their achie...