This paper compares the performance of a two-sided combinatorial call market, direct negotiation, and double auction for consolidating fragmented land. Experimental results suggest direct negotiation produces higher efficiencies than other mechanisms. The combinatorial call market tends to alleviate the exposure problem, and performs well when 1) swapping is easily agreeable, and 2) the number ...

Emotional enhancement of memory by noradrenergic mechanisms is well-described, but the long-term consequences of such enhancement are poorly understood. Over time, memory traces are thought to undergo a neural reorganization, that is, a systems consolidation, during which they are, at least partly, transferred from the hippocampus to neocortical networks. This transfer is accompanied by a decre...

A host of animal work demonstrates that the retention benefit for emotionally aversive over neutral memories is regulated by glucocorticoid action during memory consolidation. Particularly, glucocorticoids may affect systems-level processes that promote the gradual reorganization of emotional memory traces. These effects remain largely uninvestigated in humans. Therefore, in this functional mag...

The behaviour of semi arid residual soils derived from the weathering of Johannesburg quartzite are difficult to predict because of their heterogeneous particle constitution and weakly bonded structure. The collapse behaviour of undisturbed and remoulded weathered Johannesburg quartzite was investigated; and the reliability of the collapse settlement data was also evaluated. The results showed ...

The events which occurred on 11 September 2001 were unprecedented in many ways. This article discusses how online newspapers reported on these events. Applying a descriptive methodology to a sample of 18 online newspapers from nine countries, this article analyses the strengths and weaknesses of online newspapers that could be seen that day. It shows the consolidation of the internet as an impo...

constant rate of strain (crs) consolidation is a rapid test method used for determination of compressibility of clayey soils. in a crs test, the appropriate strain rate is selected based on pore water pressure ratio, i.e. the ratio of pore pressure to total stress. in the present study, to investigate the effect of strain rate on variation of relative pore water pressure, four different clay sa...

PURPOSE The influence of the selective antagonism of metabotropic glutamate receptor subtype 5 (mGluR5) by MPEP (2-methyl-6-(phenylethynyl)-pyridine) on some behaviors was tested in control groups of rats and in rats exposed to short-term hypoxia once or to repeated episodes of hypoxia. MATERIAL AND METHODS We used the following methods: the open field test, the passive avoidance test and the...

Histaminergic fibers are present in the molecular and granular layers of the cerebellum and have a high density in the vermis and flocullus. Evidence supports that the cerebellar histaminergic system is involved in memory consolidation. Our recent study showed that histamine injections facilitate the retention of an inhibitory avoidance task, which was abolished by pretreatment with an H2 recep...

OBJECTIVES/HYPOTHESIS Mandibular distraction osteogenesis (MDO) involves a lengthy consolidation phase where complications can occur. Strontium is an element that has been shown to improve bone healing. The objective of this study was to determine whether strontium citrate can be used to enhance bone healing during MDO in a rabbit model. STUDY DESIGN Prospective animal model study. METHODS ...