منابع مشابه
Genome Evolution: A Double Take for Paramecium
The surprising discovery of a whole-genome duplication in the otherwise compact genome of Paramecium tetraurelia displays the early forces driving gene retention and loss.
متن کاملEndosymbiosis: Double-Take on Plastid Origins
Plastids--the light-harvesting machines of plant and algal cells--evolved from cyanobacteria inside a eukaryotic host more than a billion years ago. New data reveal that a mysterious unicellular alga acquired its photosynthetic apparatus much more recently than other eukaryotes, affording a second look at the primary endosymbiotic origin of plastids.
متن کاملDouble take--fracture fishing in accident and emergency practice.
OBJECTIVE To investigate conditions where, after initially negative plain x rays following trauma, there subsequently proves to be fracture, and to explore ways in which the management might be improved. DESIGN A 16 month prospective study. Patient details were collected from accident and emergency (A&E) review clinics and returns, A&E ward admissions, correspondence from other services, and ...
متن کاملDouble Fold or Double Take? Book Memory and the Administration of Knowledge
The year 2001 will be known for many destructive and highly visible public tragedies. However within the librarian discourse, it will be remembered for the controversies encircling the publication of Nicholson Baker’s Double Fold. This article assesses the rationale, direction and scope of this book and resultant debate, showing what it reveals about libraries, librarians and the distinctions b...
متن کاملCut-off Sampling Design: Take all, Take Some, and Take None
Extended Abstract. Sampling is the process of selecting units (e.g., people, organizations) from a population of interest so that by studying the sample we may fairly generalize our results back to the population from which they were chosen. To draw a sample from the underlying population, a variety of sampling methods can be employed, individually or in combination. Cut-off sampling is a pr...
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ژورنال
عنوان ژورنال: BMC Biology
سال: 2015
ISSN: 1741-7007
DOI: 10.1186/s12915-015-0217-2