During translation, mRNA is threaded through the ribosome in precise and directional three-nucleotide steps. A recent paper identifies a new GTPase, LepA, which catalyzes unexpected one-codon backward movement on the ribosome.

In the distributed setting, the object-oriented programming model may be criticized for its tight coupling of communication and synchronization, found in, e.g., remote procedure calls. Creol is a novel object-oriented language which targets distributed systems by combining asynchronous method calls with so-called processor release points inside concurrent objects [3]. A type system for Creol an...

In this paper, we examine the intuition that TD( ) is meant to operate by approximating asynchronous value iteration. We note that on the important class of discrete acyclic stochastic tasks, value iteration is ine cient compared with the DAG-SP algorithm, which essentially performs only one sweep instead of many by working backwards from the goal. The question we address in this paper is wheth...

JavaScript is notoriously difficult to analyze due to its rampant use of standard dynamic features (e.g. duck typing, dynamic dispatch, first-class functions, and run-time string evaluation), as well as its idiosyncratic approach to scoping (scope object chains) and inheritance (prototyping). Therefore, despite its near-universal adoption as a client-side scripting language and its increasing u...

Human newborns discriminate languages from different rhythmic classes, fail to discriminate languages from the same rhythmic class, and fail to discriminate languages when the utterances are played backwards. Recent evidence showing that cotton-top tamarins discriminate Dutch from Japanese, but not when utterances are played backwards, is compatible with the hypothesis that rhythm discriminatio...

Recent evidence suggests that blindness enables visual circuits to contribute to language processing. We examined whether this dramatic functional plasticity has a sensitive period. BOLD fMRI signal was measured in congenitally blind, late blind (blindness onset 9-years-old or later) and sighted participants while they performed a sentence comprehension task. In a control condition, participant...

In the study maintenance workers were involved in pneumatic wrenching, oxy-gas cutting, and grinding at 5 different heights. Working posture and workers' perceptions were measured. Guidelines on working height were formulated in order to minimize the load on the musculoskeletal system. Data from the present experiment as well as from literature were studied in depth in order to disclose generic...