The prospective virtues of using history and philosophy of science in science teaching have been pronounced for decades. Recently, a role for nature of science in supporting scientific literacy has become widely institutionalized in curriculum standards internationally. This short review addresses these current needs, highlighting the concrete views of teachers in the classroom, eschewing ideol...

Governments need to create more jobs in the health sector to boost their economies and make progress in achieving their health goals, according to the High-Level Commission on Health Employment and Economic Growth. In its final report released last month, the commission, co-chaired by President François Hollande of France and President Jacob Zuma of South Africa, made 10 recommendations to addr...

Title of dissertation: CHAOTIC DYNAMICS OF A LASER WITH FEEDBACK Ryan Glen McAllister, Doctor of Philosophy, 2003 Dissertation directed by: Professor Rajarshi Roy Department of Physics A diode-pumped solid-state laser is constructed. The complex dynamics resulting from electronic feedback of the laser intensity are explored and characterized. The laser is further perturbed by periodic, quasiper...

An important paradigm in geomorphology is paraglacial sedimentation, a phrase first used almost 40 years ago to describe reworking of glacial sediment by mass wasting and streams during and after continental-scale deglaciation. The concept has been extended to include nonglacial landforms and landscapes conditioned by glaciation. In this paper we apply the paraglacial concept to volcanoes in so...

--The s x of Canada Goose (Branta canadensis) goslings was not correlated with the position in the laying sequence, egg mass, or size of goslings at hatching. However, male goslings were larger at fledging than female goslings. This suggests that sex determination in Canada Geese and probably in other Anserinae occurs randomly over the laying sequence and that parental allocation of resources i...

Large fans and terraces are frequent in the Khumbu Himal within the high Himalayan valleys south of Mt. Everest. These features are composed of massive matrixand clast-supported diamicts that were formed from both hyperconcentrated flows and coarse-grained debris flows. Cosmogenic radionuclide (CRN) exposure ages for boulders on fans and terraces indicate that periods of fan and terrace formati...

Background Chronic pain affects 30% of all patients in developed countries, accounting for up to 35% prescriptions acute care settings. Non-opioid medications are widely utilized treatment non-cancer chronic pain. Among these, pregabalin is a commonly prescribed anticonvulsant, which works by antagonizing L-type calcium channels, decreasing the release neurotransmitters [1] . Pregabalin use has...

Introduction: Tera et al. [1] first proposed a "terminal cataclysm" or Late Heavy Bombardment (LHB) based on an apparent spike in lunar rock resetting ages; the LHB has more recently been advocated on the basis of a spike in ages of lunar impact melts, or at least an absence of secure impact melt ages prior to 4 Ga [2-5]. Dates for lunar impact basins [6] from Nectaris (3.90-3.92 Ga) to Orienta...

Received for publication 24 August 1972 and in revised form 2 April 1973. INTRODUCTION The anatomic location of the liver, receiving the entire pancreatic output of insulin prior to its entry into the systemic circulation, and its ability to degrade insulin permits it to play an important role in regulating peripheral insulin concentrations (1). Although increases in peripheral insulin levels h...

For millions of years, the stout, muscular Przewalski’s horse freely roamed the high grasslands of Central Asia. By the mid-1960s, these, the last of the wild horses, were virtually extinct: a result of hunting, habitat loss, and cross breeding with domestic horses. Recovering fromatinypopulationof12 individualsand only fourpurebredfemales, therearenownearly2,000Przewalski’s horsesaround the wo...