This journal provides immediate access to some articles. Volume 59(4); April 1968 INTRAMOLECULAR HYDROGEN BONDING OF AZO DYES IN AQUEOUS SOLUTION PMCID: PMC224825 Molecular theory of the helix-coil transition in polyamino acids, I. Formulation. PMCID: PMC224826 Electron spin resonance of a gamma-irradiated single crystal of 3'-cytidylic acid. PMCID: PMC224827 Mössbauer studies on putidaredoxin. PMCID: PMC224828 Reproductive structures and taxonomic affinities of some nannofossils from the gunflint iron formation. PMCID: PMC224829 PREFERRED ORIENTATION OF QUARTZ IN A CHERT BRECCIA PMCID: PMC224830 ELLIPTIC OPERATORS OF HIGHER ORDER IN DIVERGENCE FORM PMCID: PMC224831 ON THE LAW OF THE ITERATED LOGARITHM WITHOUT ASSUMPTIONS ABOUT THE EXISTENCE OF MOMENTS PMCID: PMC224832 DECOMPOSITIONS OF TRIPLY CONNECTED DOMAINS PMCID: PMC224833 AN ANALYSIS OF SCIENTIFIC PRODUCTIVITY PMCID: PMC224834 Cellular differentiation in Volvox. PMCID: PMC224835 CELL DIVISION AND THE DIFFERENTIATION OF WOUND-VESSEL MEMBERS IN CULTURED STEM SEGMENTS OF Coleus PMCID: PMC224836 Lipid abnormalities in a variant of the Hurler syndrome. PMCID: PMC224837 Further characterization of L-cell virions. PMCID: PMC224838 The synthesis of collagen and protocollagen hydroxylase by fibroblastic and nonfibroblastic cell lines. PMCID: PMC224839 Effects of DNA repair in transformation-heterozygotes of pneumococcus. PMCID: PMC224840 Nonoperative DNA complementary to ribosomal RNA. PMCID: PMC224841 Loss of T-antigen from somatic hybrids between mouse cells and SV40-transformed human cells. PMCID: PMC224842 A membranelike fraction from Neurospora crassa, I. Structure of "membranes" and release of free amino acids. PMCID: PMC224843 The loss of phenotypic traits by differentiated cells, V. The effect of 5-bromodeoxyuridine on cloned chondrocytes. PMCID: PMC224844 Bacterial conjugation: electron microscope observations on thin sections. PMCID: PMC224845 Viral DNA in polyoma- and SV40-transformed cell lines. PMCID: PMC224846 Interspecific transplantation as a tool for indicating phylogenetic relationships. PMCID: PMC224847 Effect of bretylium and guanethidine on transmission to sweat glands in the cat. PMCID: PMC224848 MECHANISM OF MOVEMENTS OF GRANULES IN MELANOCYTES OF Fundulus heteroclitus PMCID: PMC224849 Stimulation of the carotid chemoreceptors of the dog by dopamine. PMCID: PMC224850 PHASE TRANSITION IN THE SLIDING-FILAMENT MODEL OF MUSCULAR CONTRACTION PMCID: PMC224851 Concerning negative conductance in the squid axon. PMCID: PMC224852 Evidence for a relationship between mouse hemopoietic stem cells and cells forming colonies in culture. PMCID: PMC224853 The syndrome of excessive thyrocalcitonin produced by medullary carcinoma of the thyroid. PMCID: PMC224854 THE FUNCTION OF THE ACCESSORY SEX GLANDS IN Periplaneta americana (L.), I. A QUANTITATIVE BIOASSAY FOR THE JUVENILE HORMONE PMCID: PMC224855 Elevation and depression of hepatic tyrosine transaminase activity by depletion and repletion of norepinephrine. PMCID: PMC224856 Periods of genetic transcription required for the synthesis of three enzymes during cellular slime mold development. PMCID: PMC224857 Polysome formation with tobacco mosaic virus RNA. PMCID: PMC224858 CYTOPLASMIC PARTICLES CARRYING RAPIDLY LABELED RNA IN DEVELOPING INSECT EPIDERMIS PMCID: PMC224859 Mutants that make more lac repressor. PMCID: PMC224860 Early estrogen action: nuclear synthesis and accumulation of protein correlated with enhancement of two DNA-dependent RNA polymerase activities. PMCID: PMC224861 The chelate structure of Micrococcus aerogenes rubredoxin. PMCID: PMC224862 The formation of 5S ribosomal ribonucleic acid in Bacillus subtilis by posttranscriptional modification. PMCID: PMC224863 Protein synthesis in the isolated giant axon of the squid. PMCID: PMC224864 The biogenesis of mitochondria, VI. Biochemical basis of the resistance of Saccharomyces cerevisiae toward antibiotics which specifically inhibit mitochondrial protein synthesis. PMCID: PMC224865 Restriction of infectious bacteriophage fd DNA's and an assay for in vitro host-controlled restriction and modification. PMCID: PMC224866 Host specificity of DNA produced by Escherichia coli, X. In vitro restriction of phage fd replicative form. PMCID: PMC224867 N-terminal amino acid sequences of immunoglobulin chains in Polyodon spathula. PMCID: PMC224868 The biosynthesis of mannosyl-1-phosphoryl-polyisoprenol in Micrococcus lysodeikticus and its role in mannan synthesis. PMCID: PMC224869 The amino acid sequence of porcine thyrocalcitonin. PMCID: PMC224870 Chemical basis for heterogeneity of ribosomal proteins. PMCID: PMC224871 Changing patterns of histone acetylation and RNA synthesis in regeneration of the liver. PMCID: PMC224872 A preferred origin for the replication of lambda DNA. PMCID: PMC224873 Polyribosomal changes during inhibition of rabbit hemoglobin synthesis by an isoleucine antagonist. PMCID: PMC224874 Conformation dependence of intramolecular energy transfer in phycoerythrin. PMCID: PMC224875 Cyclic adenosine monophosphate, CA++, and membranes. PMCID: PMC224876 Specific inhibition of virus growth in cells treated with phospholipase C. PMCID: PMC224877 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||