Abstract We classify rational cuspidal curves of degrees 6 and 7 in the complex projective plane, up to symplectic isotopy. The proof uses topological tools, pseudoholomorphic techniques, birational transformations.

The aim of this paper is to illustrate how the designer can use and exploit results obtained by applying different methods and techniques of cognitive ergonomics. In particular, this study made use of the Eye-tracking tool and other qualitative projective techniques in order to assess the user perception based on different attributes in different contests (from packaging to jewelry, car seats a...

PREFATORY COMMENT. This paper—my first publication—appeared a quarter-century ago, and I like to think that I have learned a little something since then. I consented to its reprinting because I still believe it has a message, and of course it was an influential contribution to its time. (Professor Wiggins, before proceeding to make his impressive case contra, flatteringly calls it “Meehl's now ...

Suppose that f ∈ IR is a vector of n error-contaminated measurements of n smooth values measured at distinct and strictly ascending abscissae. The following projective technique is proposed for obtaining a vector of smooth approximations to these values. Find y minimizing ‖y− f‖∞ subject to the constraints that the second order consecutive divided differences of the components of y change sign ...

Introduction A growing body of literature has shown an association between somatic symptoms and insecure "attachment style." In a recent study, we found a relationship between migraine severity, ambivalent attachment style, and psychological symptoms in children/adolescents. There is evidence that caregivers' attachment styles and their way of management/expression of emotions can influence chi...

In many applications, one is required to estimate the projective transformation between two sets of points, which is also known as collineation or homography. This report presents a number of techniques for this purpose.

We discuss derivation–like techniques for transforming one locally Hermitian partial ovoid of the Hermitian surface H(3, q2) into another one. These techniques correspond to replacing a regulus by its opposite in some naturally associated projective 3–space PG(3, q) over a square root subfield. Mathematics Subject Classification (2002): 51E20, 51A50

The Six-part Story Method (6PSM) is a projective tool in wide use by dramatherapists in the UK, USA and Israel (Lahad & Ayalon, 1993). In contrast to projective tests used by psychotherapists and psychologists, the 6PSM has never been the subject of any validation or reliability studies. This study reports on the identification of scale items to describe the manifest content of six-part stories...