Supposing that Christ is impeccable – that, necessarily, Christ does not sin – what explains that impeccability? While there have been multiple theories of how the operations of Christ's human will could be fully free while Christ's sinlessness is nevertheless guaranteed, such accounts cannot be exploited to provide the requisite explanation. And not all of the divine purposes sufficient for becoming incarnate would also be sufficient to explain why Christ must be sinless. We should instead explain Christ's impeccability normatively, in terms of the reasons that God has to respond appropriately to God's own perfection by refraining from taking on a human nature with a will that ever opposes the divine will. Such reasons are reasons of divine holiness.

Despite being emphatically ascribed to God in Scripture, holiness is little examined in the current literature on the divine attributes. This article defends a normative theory of holiness, taking as its point of departure Rudolf Otto's classic account of the phenomenology of the experience of holiness as that of a mysterium tremendum et fascinans. To be holy is to merit this dual response, that is, to merit both the overwhelming attraction and distinctive sort of repulsion that is characteristic of the experience of holiness. It is plausibly an implication of this account that a supremely holy being – one who is holy, holy, holy – must be the most perfect possible being.

In this symposium on God's Own Ethics, Erik Wielenberg, Kristen Irwin, and Paul Draper raise important criticisms of the arguments of that book. I respond to these criticisms.

In God's Own Ethics: Norms of Divine Agency and the Argument from Evil, I consider what norms of action we should take to regulate God's agency. I also consider what inferences we should draw about the success of the argument from evil when we consider how an all-powerful, all-knowing agent would be motivated, given the ascription of those norms of action to God. This article is a précis of the main arguments of that book.

In the United States alone, ∼14,000 children are hospitalised annually with acute heart failure. The science and art of caring for these patients continues to evolve. The International Pediatric Heart Failure Summit of Johns Hopkins All Children’s Heart Institute was held on February 4 and 5, 2015. The 2015 International Pediatric Heart Failure Summit of Johns Hopkins All Children’s Heart Institute was funded through the Andrews/Daicoff Cardiovascular Program Endowment, a philanthropic collaboration between All Children’s Hospital and the Morsani College of Medicine at the University of South Florida (USF). Sponsored by All Children’s Hospital Andrews/Daicoff Cardiovascular Program, the International Pediatric Heart Failure Summit assembled leaders in clinical and scientific disciplines related to paediatric heart failure and created a multi-disciplinary “think-tank”. The purpose of this manuscript is to summarise the lessons from the 2015 International Pediatric Heart Failure Summit of Johns Hopkins All Children’s Heart Institute, to describe the “state of the art” of the treatment of paediatric cardiac failure, and to discuss future directions for research in the domain of paediatric cardiac failure.

Significant new opportunities for astrophysics and cosmology have been identified at low radio frequencies. The Murchison Widefield Array is the first telescope in the southern hemisphere designed specifically to explore the low-frequency astronomical sky between 80 and 300 MHz with arcminute angular resolution and high survey efficiency. The telescope will enable new advances along four key science themes, including searching for redshifted 21-cm emission from the EoR in the early Universe; Galactic and extragalactic all-sky southern hemisphere surveys; time-domain astrophysics; and solar, heliospheric, and ionospheric science and space weather. The Murchison Widefield Array is located in Western Australia at the site of the planned Square Kilometre Array (SKA) low-band telescope and is the only low-frequency SKA precursor facility. In this paper, we review the performance properties of the Murchison Widefield Array and describe its primary scientific objectives.

We assessed characteristics associated with community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) carriage among residents of 22 nursing homes. Of MRSA-positive swabs, 25% (208/824) were positive for CA-MRSA. Median facility CA-MRSA percentage was 22% (range, 0%–44%). In multivariate models, carriage was associated with age less than 65 years (odds ratio, 1.2; P < .001) and Hispanic ethnicity (odds ratio, 1.2; P = .006). Interventions are needed to target CA-MRSA.

The Australian Square Kilometre Array Pathfinder (ASKAP) will give us an unprecedented opportunity to investigate the transient sky at radio wavelengths. In this paper we present VAST, an ASKAP survey for Variables and Slow Transients. VAST will exploit the wide-field survey capabilities of ASKAP to enable the discovery and investigation of variable and transient phenomena from the local to the cosmological, including flare stars, intermittent pulsars, X-ray binaries, magnetars, extreme scattering events, interstellar scintillation, radio supernovae, and orphan afterglows of gamma-ray bursts. In addition, it will allow us to probe unexplored regions of parameter space where new classes of transient sources may be detected. In this paper we review the known radio transient and variable populations and the current results from blind radio surveys. We outline a comprehensive program based on a multi-tiered survey strategy to characterise the radio transient sky through detection and monitoring of transient and variable sources on the ASKAP imaging timescales of 5 s and greater. We also present an analysis of the expected source populations that we will be able to detect with VAST.

According to Aquinas's view, while the mandate that political authority be instituted and exercised is an immediate consequence of the natural law precept that the common good be promoted, the question of who possesses political authority is settled by customary law. Samuel Beer's rival interpretation, one of the few attempts to discern Aquinas's view on political authority, is incompatible with Aquinas's explicit remarks on these matters. The present account provides an interpretation that both fits Aquinas's few explicit remarks about the source and form of political authority and explains the terseness of his remarks on that subject.