Campbell’s The Great Transition is a significant contribution to the growing literature that traces the roots of Europe’s economic rise to the climatic and population shocks of the late medieval period. This review essay discusses the empirical, historical and theoretical support for Campbell’s view while highlighting that it struggles to explain why these positive effects were limited to Europ...

Proteins have been shown to exhibit strange/anomalous dynamics displaying non-Debye density of vibrational states, anomalous spread of vibrational energy, large conformational changes, nonexponential decay of correlations, and nonexponential unfolding times. The anomalous behavior may, in principle, stem from various factors affecting the energy landscape under which a protein vibrates. Investi...

The effect of atmospheric propagation on radar observations is an important topic both for radar application developers and end-users of radar products, particularly of weather radar systems. An excellent review of this subject is given by Patterson (2008), and most general books about weather radars have a chapter on the topic –see for example Battan (1973), Collier (1996), Doviak and Zrnic (2...

abstract   objective: to evaluate the surgical treatment of total anomalous pulmonary venous connection (tapvc) and determination of predictors for postoperative death. methods: between 1995 and 2005, 80 patients aged from 1 month to 12 years underwent surgical repair for supracardiac (39), cardiac (34), infracardiac (3) or mixed (4) type of tapvc. systemic pulmonary hypertension (ph) in 53.8% ...

As Biocca pointed out, the “two poles model“ of presence has only considered the virtual and pyshical spaces, but not the imaginary spaces. This work is aimed at comparing the sense of presence between virtual and imaginary environments. 100 participants were randomly assigned to one of the two conditions (imagined versus virtual spaces) and the subjective sense of presence was measured in thre...

We describe the ``WEDGE'' immersive projection theater. The WEDGE has been built as an affordable installation for university VR infrastructure in Australia. It achieves a ``semi-immersive'' sense of presence without, apparently, give rise to significant discomfort. The vertex region of the theater appears to be especially effective in giving a sense of presence. See http://wedge.anu.edu.au/ fo...

We consider the aerodynamics of football, specifically, interaction between a ball in flight and ambient air. Doing so allows one to account for characteristic range trajectories balls flight, as well their anomalous deflections may be induced by striking either with or without spin. The dynamics viscous boundary layers is briefly reviewed, its critical importance on highlighted. Magnus effect ...