The routes of these two ants to the steep and plateau gradients differ in a manner that suggests that the ants have learned different associations between desired edge position and apparent landmark width when running their training routes and that they apply their idiosyncratic look-up tables when approaching the test gradients.
Numerical calibrations were performed against results obtained from three types of laboratory tests: water infiltration tests, thermal gradient tests and swelling pressure tests.
Despite substantial efforts (variety of DNA extraction procedures tested, PCR additive tested, gradient PCR tested), we were not able to obtain 18S/28S sequences for some species (especially a Placinolopha species), and in some cases only shorter sequences could be amplified (see Table 1 for distribution of missing data).
Briefly, peripheral blood mononuclear cells (PBMC) were separated from heparinized whole blood (10 15 mL) by Ficoll-Paque plus (Amersham Biosciencies, endotoxin tested) gradient centrifugation and RNA was extracted using the acid guanidium thiocyanate-phenol-chloroform method.
Though the climbs are quite testing – gradients averaging seven per cent and lengths up to seven miles – I saw children riding mountain bikes, toddlers being towed in trailers and, in one case, a young teenager being pulled along by his dad with a piece of rope tied between their bikes.
Antimicrobial susceptibility was performed by Kirby-Bauer disk diffusion according to the Clinical Laboratory Standards Institute (CLSI) guidelines (29 ); mupirocin MIC was determined by using E-Test gradient strips (AB Biodisk, Solna, Sweden).
DOI: http://dx.doi.org/10.7554/eLife.02040.008 To further test the gradient model, we examined the effect of altering the gradient profile.
After a six-month test period, Gradient X took the beta label off its mobile ad platform.
We present and test a gradient augmented level set method for unstructured grids, which has been designed to allow for easy integration in parallel flow solvers.
In addition, Compared with that before the test, the gradient coating after thermal cycling tests becoming softer than that before the test.
We also derive and test two gradient descent based orthogonalization procedures for recurrent weights matrix, which considerably increase the memory capacity, approaching the upper bound, which is equal to the reservoir size, as proved for linear reservoirs.
