Editorial: “Passages and Palimpsests”

Palimpsests New and Old

We usually think of palimpsests as old texts written on parchment over earlier erasures, but digital technology has caused the present to be the most palimpsestic of times. A survey of modern-day palimpsests leads to an examination of why and how people created palimpsests in the past. Unlike the old analog documents, our electronic palimpsested texts face the likelihood of relatively rapid to ...

Malleable Coding: Compressed Palimpsests

A malleable coding scheme considers not only compression efficiency but also the ease of alteration, thus encouraging some form of recycling of an old compressed version in the formation of a new one. Malleability cost is the difficulty of synchronizing compressed versions, and malleable codes are of particular interest when representing information and modifying the representation are both exp...

Some Remarks on the Caucasian Albanian Palimpsests *

Straits, Passages and Chokepoints

The transportation of petroleum represents one of the most strategically important circulations of resources in the global economy. Its role cannot be overstated. Yet, petroleum has become a “strategically invisible” commodity as its flow has been continuous with limited, but eye-opening, disruptions such as the First Energy Crisis is 1973. Petroleum supplies are virtually taken for granted. Si...

Dynamic reprogramming of chromatin: paradigmatic palimpsests and HES factors

Temporal and spatial control of transcription in development is dictated to a great extent by transcriptional repressors. Some repressor complexes, such as Polycomp-group proteins, induce relatively long-term non-permissive states, whereas others such as hairy/enhancer of split (HES) family repressors are linked to dynamically modulated chromatin states associated with cycling expression of tar...