نتایج جستجو برای: originally guarding

تعداد نتایج: 47634  

2017
Marlene P. Freeman James Pooley Martina J. Flynn Lee Baer David Mischoulon David Mou Maurizio Fava

BACKGROUND Failed treatment trials are common in major depressive disorder and treatment-resistant depression, and remotely performed multifaceted, centralized structured interviews can potentially enhance signal detection by ensuring that enrolled patients meet eligibility criteria. METHODS We assessed the use of a specific remote structured interview that validated the diagnosis, level of t...

2011
Giovanni Viglietta Nadia Benbernou Erik D. Demaine Martin L. Demaine Anastasia Kurdia Joseph O'Rourke Godfried T. Toussaint Jorge Urrutia

We address the question: How many edge guards are needed to guard an orthogonal polyhedron of e edges, r of which are reflex? It was previously established [3] that e/12 are sometimes necessary and e/6 always suffice. In contrast to the closed edge guards used for these bounds, we introduce a new model, open edge guards (excluding the endpoints of the edge), which we argue are in some sense mor...

Journal: :CoRR 2012
Giovanni Viglietta

Guarding and searching problems have been of fundamental interest since the early years of Computational Geometry. Both are well-developed areas of research and have been thoroughly studied in planar polygonal settings. In this thesis we tackle the Art Gallery Problem and the Searchlight Scheduling Problem in 3-dimensional polyhedral environments, putting special emphasis on edge guards and ort...

2017
David L. Parker Samuel Yamin Min Xi Robert Gordon Ivan Most Rod Stanley

OBJECTIVES This manuscript assesses safety climate data from the National Machine Guarding Program (NMGP)-a nationwide intervention to improve machine safety. METHODS Baseline safety climate surveys were completed by 2161 employees and 341 owners or managers at 115 businesses. A separate onsite audit of safety management practices and machine guarding equipment was conducted at each business....

2018
Matthew J. Katz

In this extended abstract, we first present a PTAS for guarding the vertices of a weakly-visible polygon P from a subset of its vertices, or in other words, a PTAS for computing a minimum dominating set of the visibility graph of the vertices of P . We then show how to obtain a PTAS for vertex guarding the entire polygon. Digital Object Identifier 10.4230/LIPIcs...

1998
Mark de Berg Haggai David Matthew J. Katz Mark H. Overmars A. Frank van der Stappen Jules Vleugels

In recent years realistic input models for geometric algorithms have been studied. The most important models introduced are fatness, low density, unclutteredness, and small simple-cover complexity. These models form a strict hierarchy. Unfortunately, small simple-cover complexity is often too general to enable efficient algorithms. In this paper we introduce a new model based on guarding sets. ...

2003
L. L. GETZ

Social behavior of the prairie vole, Microtus ochrogaster, including monogamy, mate guarding, philopatry, communal nesting, and territoriality, evolved as an adaptation to habitats with low food prevalent in the original range of the species. These behaviors are associated with low population densities and low amplitudes of fluctuation characteristic of low food habitats. In particular, reprodu...

2014
Anton Akusok David Veganzones Yoan Miché Eric Séverin Amaury Lendasse

This paper presents a methodology which aims at detecting mislabeled samples, with a practical example in the field of bankruptcy prediction. Mislabeled samples are found in many classification problems and can bias the training of the desired classifier. This paper proposes a new method based on Extreme Learning Machine (ELM) which allows for identification of the most probable mislabeled samp...

2008
Farnaz Kaighobadi Valerie G. Starratt Todd K. Shackelford Danielle Popp

Previous research has documented relationships between (1) female sexual infidelity and men’s non-violent mate retention behaviors, and (2) men’s non-violent mate retention behaviors and partner-directed violence. In the two studies, we examined two additional relationships: (1) the relationship between accusations of female sexual infidelity and men’s partner-directed violence and (2) whether ...

2000
David Kirkpatrick

We consider the problem of guarding galleries that have no small nooks (regions that are visible from only a small fraction of the entire gallery). Intuitively, such galleries (of which convex galleries are a special but uninteresting case) should need fewer guards. We show that in any simply connected gallery in which every corner sees at least a fraction of the other corners there exist a set...

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