SAlthough different theoretical models are complementary, functional models in general, andSystemic Functional Linguistics in particular lend themselves to the analysis of text. This is so atthe level of register, in terms of Field, Tenor and Mode, as well as at the level of semantics interms of ideational, interpersonal and textual metafunction. This paper will consider two...

Many methods have been developed for spectral analysis of irregularly sampled data. Currently, popular methods such as Lomb–Scargle and resampling tend to be biased at higher frequencies. Slotting methods fail to consistently produce a spectrum that is positive for all frequencies. In this paper, a new estimator is introduced that applies the Burg algorithm for autoregressive spectral estimatio...

Abetract--The chemical composition of Dufour's gland secretions of 13 species of halictine bees was investigated. The secretions were composed of a series of macrocyclic lactones, hydrocarbons and isopentenyl esters. The number and relative intensities of these compounds were unevenly disu'ibuted among the species, i.e. the secretions were species specific. Based on the empirical date, an algor...

Trimming ERAD U biquitins are zip codes for proteins heading to the proteasome. But misfolded ER proteins must be deubiquitinated before they are degraded, as shown by Wang et al. on page 963. Misfolded ER proteins are sent back through the ER membrane into the cytosol by the p97 ATPase. Upon reaching the membrane’s cytosolic side, the substrates are modifi ed by ubiquitin ligases. Wang et al. ...