Northampton Community College

About: Northampton Community College is a education organization based out in Bethlehem, Pennsylvania, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 3410 authors who have published 4582 publications receiving 130398 citations. The organization is also known as: Northampton County Area Community College.

Internal stabilization and decoupling in linear multivariable systems by unity output feedback compensation

Abstract: We consider the problem of internally stabilizing and simultaneously diagonally decoupling a linear multivariable system by unity output feedback compensation. A sufficient condition is derived for the existence of a cascade proper compensator C(s) such that when employed in a unity feedback loop involving the proper transfer function matrix P o of a free of unstable hidden modes system \Sigma(P_{o}) , will not only internally stabilize the feedback closed-loop system \Sigma(P_{o}, C) but will also give rise to a closed-loop transfer function matrix H_{yr}^{diag} , which is nonsingular, diagonal, and has desired poles. Based on this analysis, an algorithmic procedure for the computation of such a compensator is presented.

Audit of Diagnostic Accuracy of Fna Cytology Specimens Taken By the Histopathologist In A Symptomatic Breast Clinic

Abstract: One thousand and two patients with palpable breast lumps have had fine needle aspiration at a surgical symptomatic breast clinic where the pathologist takes, stains and immediately reports the aspiration cytology smears. High levels of complete sensitivity (95.7%) and specificity (100%) have been maintained with a combined complete sensitivity for aspiration cytodiagnosis, mammography and clinical assessment of 99.7%. Significant reductions of unnecessary biopsies and out-patient revisits have allowed major resource savings to be made. In view of the high degree of accuracy obtained by this approach to the investigation of palpable breast lesions, combined clinics with their benefits for the patient, both physical and psychological, should be encouraged.

Positioning techniques for location‐based services (LBS): characteristics and limitations of proposed solutions

Abstract: Location‐based services are touted as the ‘killer applications’ of the mobile information revolution. This paper highlights some of the technical characteristics and limitations inherent in current mobile positioning technologies in order to set the current optimism surrounding Location‐Based Services (LBS) in context. A complex technical situation is revealed with different technologies providing results with very different spatial characteristics. Most current terrestrial solutions fail to provide results of sufficiently high spatial resolution for many of the proposed LBS applications, and satellite based solutions suffer from problems of reception and coverage in built up areas. The issue of georeferencing the services themselves is tackled and further work needs to be done on providing accurate spatial locations on the vast array of services that could be available through LBS. A current reluctance to temper these claims could arguably lead to unrealistic raising of the expectations of the buying public. The proven vulnerability of new technology to the fickleness of market opinion highlights that the technology may stand or fall not on its own merits, but on how it matches the expectations of the user.

Over-exercising in anorexic and normal samples

Abstract: Exercise, attitudes, motivation and behaviour were compared in groups of female anorexic patients and groups of males and females without eating disorders. The anorexic group were significantly more hyperactive, exercised more frequently and engaged in a wider variety of exercise behaviours. They were also more likely to exercise in secret and were more compulsive about exercising. They displayed a ‘negative addiction’ to exercise, and gave control of their negative mood states as their major reason for undertaking it. The theoretical and clinical implications of these results are discussed.