A state of ignorance p.545
doi: 10.1038/434545b
Volume 434 Issue 7033
Editorials
Drug safety on trial p.545
doi: 10.1038/434545a
News
Millennium group nails down the financial value of ecosystems p.547
doi: 10.1038/434547a
Indonesia spared tsunami as disaster quake strikes p.547
doi: 10.1038/434547b
Stray seeds had antibiotic-resistance genes p.548
doi: 10.1038/434548a
Journals lack explicit policies for separating eds from ads p.549
doi: 10.1038/434549a
News Features
The safety catch p.554
doi: 10.1038/434554a
Chasing shadows p.557
doi: 10.1038/434557a
News & Views
DNA search and rescue p.569
doi: 10.1038/434569a
Spectroscopy at a stretch p.570
doi: 10.1038/434570a
Why sex is good p.571
doi: 10.1038/434571a
What happened and what's next? p.573
doi: 10.1038/434573a
p.575
doi: 10.1038/4345575a
A breath of solar air p.577
doi: 10.1038/434577a
p.577
doi: 10.1038/fake172
A pore way to die p.578
doi: 10.1038/434578a
Articles
An olivine-free mantle source of Hawaiian shield basalts p.590
doi: 10.1038/nature03411
CDK-dependent phosphorylation of BRCA2 as a regulatory mechanism for recombinational repair p.598
doi: 10.1038/nature03404
Conserved modes of recruitment of ATM, ATR and DNA-PKcs to sites of DNA damage p.605
doi: 10.1038/nature03442
Structure of a repair enzyme interrogating undamaged DNA elucidates recognition of damaged DNA p.612
doi: 10.1038/nature03458
Letters
A non-terrestrial 16O-rich isotopic composition for the protosolar nebula p.619
doi: 10.1038/nature03432
Unconventional superconductivity in PuCoGa5 p.622
doi: 10.1038/nature03428
Two-dimensional spectroscopy of electronic couplings in photosynthesis p.625
doi: 10.1038/nature03429
Decline of the marine ecosystem caused by a reduction in the Atlantic overturning circulation p.628
doi: 10.1038/nature03476
Structural and temporal requirements for geomagnetic field reversal deduced from lava flows p.633
doi: 10.1038/nature03431
Sex increases the efficacy of natural selection in experimental yeast populations p.636
doi: 10.1038/nature03405
Functional consequences of a CKIdδ mutation causing familial advanced sleep phase syndrome p.640
doi: 10.1038/nature03453
Deletion of active ADAMTS5 prevents cartilage degradation in a murine model of osteoarthritis p.644
doi: 10.1038/nature03369
ADAMTS5 is the major aggrecanase in mouse cartilage in vivo and in vitro p.648
doi: 10.1038/nature03417
Cyclophilin D-dependent mitochondrial permeability transition regulates some necrotic but not apoptotic cell death p.652
doi: 10.1038/nature03317
Loss of cyclophilin D reveals a critical role for mitochondrial permeability transition in cell death p.658
doi: 10.1038/nature03434
Structural insights into mRNA regcognition from a PIWI domain-siTNA guide complex p.663
doi: 10.1038/nature03462
Structural basis for 5'-end-specific recognition of guide RNA by the A. fulgidus Piwi protein p.666
doi: 10.1038/nature03514
Friction and torque govern the relaxation of DNA supercoils by eukaryotic topoisomerase IB p.671
doi: 10.1038/nature03395
Review Article
Chromatin remodelling and epigenetic features of germ cells p.583
doi: 10.1038/nature03368
