This paper suggests a bootstrap testing procedure for determining the rank of cointegrated systems. The properties of the new testing procedure are investigated using Monte Carlo techniques. The performance of the test compares favourably to that of the widely used procedures for determining cointegration rank proposed by Johansen (1988). JEL classi cation: C12; C15; C32.

Branched chain fatty acids are substrates for cytochrome P450(BM3) (CYP102) from Bacillus megaterium; oxidation of C15 and C17 iso and anteiso fatty acids by P450(BM3) leads to the formation of hydroxylated products that possess high levels of regiochemical and stereochemical purity.

Using Monte Carlo simulations, I show that typical out-of-sample forecast exercises for stock returns are unlikely to produce any evidence of predictability, even when there is in fact predictability and the correct model is estimated. JEL classification: C15; C53; G14.

Taking the pseudobinary C15 Laves phase compound Ce(Fe0.96Al0.04)2 as a paradigm for studying a ferromagnetic to antiferromagnetic phase transition, we present interesting thermomagnetic history effects in magnetotransport as well as magnetisation measurements across this phase transition. A comparison is made with history effects observed across the ferromagnetic to antiferromagnetic transitio...

This paper describes a software package for computing nonparametric efficiency estimates, making inference, and testing hypotheses in frontier models. Commands are provided for bootstrapping as well as computation of some new, robust estimators of efficiency, etc. JEL classification: C14; C15; C44

Stereoselective convergent synthesis of the C15-C36 segment of goniodomin A, an actin-targeting marine polyether macrolide natural product, has been achieved. The present synthesis features palladium(0)-catalyzed, copper(I)-mediated Liebeskind-Srogl cross-coupling as the fragment assembly process.

Two halogenated C15 acetogenins, named lembyne-A and lembyne-B, have been isolated from an unrecorded Laurencia species collected off the Malaysian waters. Their structures were deduced on the basis of spectroscopic evidence. Previously known elatol and iso-obtusol showed potent antibacterial activity against some marine bacteria.

Microstructure and compression properties of (Hf0.73Ta0.27)100-XMoX alloys, where X = 0, 5, 16, 21 30 at. %, are reported. The alloys were prepared by vacuum arc melting hot isostatically pressed at 207 MPa for 3 h 1400 °C. with 16 % Mo contained two phases, BCC HCP, while the alloy three BCC, HCP cubic Laves (C15). Hf73Ta27, Hf69Ta26Mo5 Hf61Ta23Mo16 experienced eutectoid transformation formati...

Two yellow-pigmented bacterial strains (100(T) and C26(T)), showing 98.4 % 16S rRNA gene sequence similarity to each other and isolated from a chicken in Germany and as a contaminant from an agar plate of a rhizosphere sample in Alabama, were studied by using a polyphasic taxonomic approach. Cells of both isolates were rod-shaped and stained Gram-negative. A comparison of the 16S rRNA gene sequ...

BACKGROUND Although saturated (SAFA), monounsaturated (MUFA), and polyunsaturated (PUFA) fatty acids are important structural components of neuronal membranes and precursors of signaling molecules, knowledge of their metabolism in Alzheimer's disease (AD) is limited. Based on recent discovery that lipids in cerebrospinal fluid (CSF) are distributed in both brain-derived nanoparticles (NP) and s...