Who orders echocardigrams?

On orders induced by implications

In this paper, the orders induced by the residual implications obtained from uninorms are investigated. A necessary and sufficient condition is presented so that the ordinal sum of fuzzy implications satisfies the law of importation with a t-norm $T$. Some relationships between the orders induced by an ordinal sum implication and its summands are determined. The algebraic structures obtained fr...

Saving Life or Respecting Autonomy: The Ethical Dilemma of DNR Orders in Patients Who Attempt Suicide

Extensive bioethics literature discusses DNR orders, but comparatively little has been published on a topic that involves almost every aspect of end-of-life decision making: DNR orders in patients who attempt suicide. Ethics consultants are increasingly confronted with this dilemma in an area where there is little legal guidance or ethical consensus. A case-based analysis of the arguments for a...

Timing of do-not-resuscitate orders for hospitalized older adults who require a surrogate decision-maker.

OBJECTIVES To examine the frequency of surrogate decisions for in-hospital do-not-resuscitate (DNR) orders and the timing of DNR order entry for surrogate decisions. DESIGN Retrospective cohort study. SETTING Large, urban, public hospital. PARTICIPANTS Hospitalized adults aged 65 and older over a 3-year period (1/1/2004-12/31/2006) with a DNR order during their hospital stay. MEASUREMEN...

Converse Lagrange Theorem Orders and Supersolvable Orders

For finite groups, we investigate both converse Lagrange theorem (CLT) orders and supersolvable (SS) orders, and see that the latter form a proper subset of the former. We focus on the difference between these two sets of orders, reformulate the work of earlier authors algorithmically, and construct a computer program to enumerate such NSS-CLT orders. We establish several results relating to NS...

Extending Partial Orders to Dense Linear Orders