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Volume 60(4);  August 1968
The cover of the journal
INTRODUCTION
Francis O. Schmitt
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1055–1057.
PMCID: PMC224881
Representation of information in neurons and sites for molecular participation.
T H Bullock
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1058–1068.
PMCID: PMC224882
The neuronal membrane.
A L Lehninger
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1069–1080.
PMCID: PMC224883
Synaptic transmission.
V P Whittaker
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1081–1091.
PMCID: PMC224884
Fibrous proteins--neuronal organelles.
F O Schmitt
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1092–1101.
PMCID: PMC224885
STRESS-STRAIN RELATIONS FOR CRYSTALS CONTAINING PLASTIC DEFORMATION
T. Y. Thomas
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1102–1104.
PMCID: PMC224886
MOMENTUM OPERATORS IN QUANTUM MECHANICS
A. M. Arthurs
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1105–1109.
PMCID: PMC224887
HOW GOOD IS THE BORN-OPPENHEIMER APPROXIMATION?
M. Moshinsky and C. Kittel
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1110–1113.
PMCID: PMC224888
PARTIAL MOLAR ROTATORY POWERS AND OPTICAL ACTIVITY IN PROTEINS AND POLYPEPTIDES, II. THE ALPHA-HELIX OF POLY-L-ALANINE
Dan W. Urry
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1114–1121.
PMCID: PMC224889
CONFORMATIONS OF POLYPEPTIDES WITH IONIZED SIDE CHAINS OF EQUAL LENGTH
S. Krimm and J. E. Mark
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1122–1129.
PMCID: PMC224890
APPLICATION OF A NEW MODULATION METHOD FOR LINEAR DICHROISM STUDIES OF ORIENTED BIOPOLYMERS IN THE VACUUM ULTRAVIOLET
J. Brahms, J. Pilet, H. Damany, and V. Chandrasekharan
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1130–1137.
PMCID: PMC224891
ION DISTRIBUTION IN CONCENTRATED ELECTROLYTES
Frank H. Stillinger, Jr.
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1138–1143.
PMCID: PMC224892
A PROTON MAGNETIC RESONANCE STUDY OF THE INTERACTION OF ADENOSINE WITH POLYURIDYLIC ACID: EVIDENCE FOR BOTH ADENINE-URACIL BASE-STACKING AND BASE-PAIRING
Benedict W. Bangerter and Sunney I. Chan
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1144–1151.
PMCID: PMC224893
NATURAL-ABUNDANCE C13 NUCLEAR MAGNETIC RESONANCE SPECTRA OF MEDIUM-MOLECULAR-WEIGHT ORGANIC COMPOUNDS
Frank J. Weigert, Manfred Jautelat, and John D. Roberts
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1152–1155.
PMCID: PMC224894
BOWLS, f-FIBER BUNDLES, AND THE ALTERATION OF CRITICAL VALUES
Marston Morse
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1156–1159.
PMCID: PMC224895
CONVERGENCE OF POISSON INTEGRALS FOR BOUNDED SYMMETRIC DOMAINS
E. M. Stein and N. J. Weiss
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1160–1162.
PMCID: PMC224896
A KRONECKER-WEYL THEOREM MODULO 2
William A. Veech
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1163–1164.
PMCID: PMC224897
ON COMPLEMENTED AND QUASI-COMPLEMENTED SUBSPACES OF QUOTIENTS OF C(S) FOR STONIAN S
Haskell P. Rosenthal
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1165–1169.
PMCID: PMC224898
ON SOME FUNCTIONAL EQUATIONS ASSOCIATED WITH SEMIGROUPS OF OPERATORS
A. B. Buche and A. T. Bharucha-Reid
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1170–1174.
PMCID: PMC224899
SOME FURTHER REMARKS ON INEQUALITIES FOR SAMPLE SUMS
D. A. Darling and Herbert Robbins
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1175–1182.
PMCID: PMC224900
TIME-FREE CONTINUOUS PROCESSES
Gideon Schwarz
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1183–1188.
PMCID: PMC224901
ON EQUATIONS WITH SETS AS UNKNOWNS
Paul Erdös and S. Ulam
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1189–1195.
PMCID: PMC224902
THE DEGREE OF CONVERGENCE OF SEQUENCES OF LINEAR POSITIVE OPERATORS
O. Shisha and B. Mond
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1196–1200.
PMCID: PMC224903
The effect of polyene macrolides on the prostate gland and canine prostatic hyperplasia.
H W Gordon and C P Schaffner
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1201–1208.
PMCID: PMC224904
Immunochemical and ultrastructural studies of myosin synthesis.
E R Allen and C F Terrence
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1209–1215.
PMCID: PMC224905
An autoradiographic study of genetic transformation.
G T Javor and A Tomasz
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1216–1222.
PMCID: PMC224906
Osteosarcomas appearing in Syrian hamsters after treatment with extracts of human osteosarcomas.
M P Finkel, B O Biskis, and C Farrell
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1223–1230.
PMCID: PMC224907
Demonstration of cell-bound and humoral immunity against neuroblastoma cells.
I E Hellström, K E Hellström, G E Pierce, and A H Bill
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1231–1238.
PMCID: PMC224908
Activation of infectious SV40 synthesis in transformed cells.
S Kit, T Kurimura, M L Salvi, and D R Dubbs
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1239–1246.
PMCID: PMC224909
The requirement for sensitized lymphocytes in one form of antigen-induced histamine release from rabbit platelets.
M J Schoenbechler and J F Barbaro
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1247–1251.
PMCID: PMC224910
Autonomous pleiotropy in Drosophilia.
C Stern and C Tokunaga
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1252–1259.
PMCID: PMC224911
Genetic evidence for the disposition of the substrate binding site of beta-galactosidase.
J Langridge
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1260–1267.
PMCID: PMC224912
The origin and direction of replication of the chromosome of Escherichia coli B-r.
M L Pato and D A Glaser
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1268–1274.
PMCID: PMC224913
Genetics of somatic mammalian cells, VII. Induction and isolation of nutritional mutants in Chinese hamster cells.
F T Kao and T T Puck
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1275–1281.
PMCID: PMC224914
The operators controlled by the lambda phage repressor.
M Ptashne and N Hopkins
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1282–1287.
PMCID: PMC224915
The integrated state of viral DNA in SV40-transformed cells.
J Sambrook, H Westphal, P R Srinivasan, and R Dulbecco
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1288–1295.
PMCID: PMC224916
Electrophysiological responses of the chemoreceptors of the blowfly to sodium salts of fatty acids.
V G Dethier and F E Hanson
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1296–1303.
PMCID: PMC224917
Generation of slow postsynaptic potentials without increases in ionic conductance.
H Kobayashi and B Libet
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1304–1311.
PMCID: PMC224918
Regulation by testosterone and insulin of citrate secretion and protein synthesis in explanted mouse prostates.
A J Lostroh
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1312–1318.
PMCID: PMC224919
Action of sodium acetylsalicylate upon sweat glands of the cat's foot pad.
D P Lloyd
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1319–1322.
PMCID: PMC224920
Rapid exchange of cellular or cell surface potassium in the rat's heart.
E Page, B Power, J S Borer, and M E Klegerman
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1323–1329.
PMCID: PMC224921
Patterns of mental ability and socioeconomic status.
A R Jensen
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1330–1337.
PMCID: PMC224922
Studies on polynucleotides, 88. Enzymatic joining of chemically synthesized segments corresponding to the gene for alanine-tRNA.
N K Gupta, E Ohtsuka, V Sgaramella, H Buchi, A Kumar, H Weber, and H G Khorana
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1338–1344.
PMCID: PMC224923
Amino acid control over RNA synthesis: a re-evaluation.
D P Nierlich
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1345–1352.
PMCID: PMC224924
Conformational differences in neurohypophyseal peptides: a countercurrent distribution and partition chromatography study.
W Gordon, R T Havran, I L Schwartz, and R Walter
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1353–1355.
PMCID: PMC224925
Mechanism of DNA chain growth, II. Accumulation of newly synthesized short chains in E. coli infected with ligase-defective T4 phages.
K Sugimoto, T Okazaki, and R Okazaki
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1356–1362.
PMCID: PMC224926
The rate of an allosteric process: inhibition of homoserine dehydrogenase I from E. coli by threonine.
E D Barber and H J Bright
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1363–1370.
PMCID: PMC224927
On the location and structure of the active sites of antibody molecules.
S J Singer and N O Thorpe
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1371–1378.
PMCID: PMC224928
Quantitative aspects of the origin of pentose in Escherichia coli.
R Caprioli and D Rittenberg
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1379–1382.
PMCID: PMC224929
Enzymatic activities of mouse nerve growth factor and its subunits.
L A Greene, E M Shooter, and S Varon
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1383–1388.
PMCID: PMC224930
Behavioral and biochemical effects of intracranial injection of cytosine arabinoside in goldfish.
L Casola, R Lim, R E Davis, and B W Agranoff
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1389–1395.
PMCID: PMC224931
An early alteration in the phospholipid metabolism of lymphocytes by phytohemagglutinin.
D B Fisher and G C Mueller
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1396–1402.
PMCID: PMC224932
Coding by T4 phage DNA of soluble RNA containing pseudouridylic acid.
V Daniel, S Sarid, and U Z Littauer
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1403–1409.
PMCID: PMC224933
The role of chromatin in estrogen action in the uterus, I. The control of template capacity and chemical composition and the binding of H3-estradiol-17 beta.
C S Teng and T H Hamilton
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1410–1417.
PMCID: PMC224934
Electron donors in tissues.
J A McLaughlin
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1418–1419.
PMCID: PMC224935
Amine synthesis in rapidly growing tissues: ornithine decarboxylase activity in regenerating rat liver, chick embryo, and various tumors.
D Russell and S H Snyder
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1420–1427.
PMCID: PMC224936
Translation of the tryptophan messenger RNA of Escherichia coli.
D E Morse, R F Baker, and C Yanofsky
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1428–1435.
PMCID: PMC224937
Observations on the conformation of human beta lipoprotein: evidence for the occurrence of beta structure.
A M Gotto, R I Levy, and D S Fredrickson
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1436–1441.
PMCID: PMC224938
Carbamyl phosphate: an allosteric substrate for aspartate transcarbamylase of Escherichia coli.
M R Bethell, K E Smith, J S White, and M E Jones
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1442–1449.
PMCID: PMC224939
Transfer RNA, I. Isolation and characterization of a new yeast alanine transfer RNA.
R H Reeves, N Imura, H Schwam, G B Weiss, L H Schulman, and R W Chambers
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1450–1457.
PMCID: PMC224940
Stability of differentiation-specific and nonspecific messenger RNA in insect cells.
F C Kafatos and J Reich
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1458–1465.
PMCID: PMC224941
Replicating molecules of circular mitochondrial DNA.
R H Kirschner, D R Wolstenholme, and N J Gross
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1466–1472.
PMCID: PMC224942
Decarboxylation of alpha-ketoglutarate coupled to collagen proline hydroxylase.
R E Rhoads and S Udenfriend
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1473–1478.
PMCID: PMC224943
Inhibition of formylmethionyl-transfer RNA binding to ribosomes by tetracycline.
S Sarkar and R E Thach
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1479–1486.
PMCID: PMC224944
Protein chain initiation and deformylation in B. subtilis homogenates.
M Takeda and R E Webster
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1487–1494.
PMCID: PMC224945
Properties of a temperature-sensitive radiation-sensitive mutant of Escherichia coli.
C Pauling and L Hamm
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1495–1502.
PMCID: PMC224946
A new kinetic model for polynucleotide metabolism.
H M Lazarus, M B Sporn, and D F Bradley
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1503–1510.
PMCID: PMC224947
Physical properties of Rous Sarcoma Virus RNA.
P H Duesberg
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1511–1518.
PMCID: PMC224948
Prediction of alpha-helical regions in proteins of known sequence.
B W Low, F M Lovell, and A D Rudko
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1519–1526.
PMCID: PMC224949
Studies on the mechanism of estrogen-mediated tissue differentiation: regulation of nuclear transcription and induction of new RNA species.
B W O'Malley and W L McGuire
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1527–1534.
PMCID: PMC224950
Correction
A CLASS OF NONAUTONOMOUS DIFFERENTIAL EQUATIONS REDUCIBLE TO AUTONOMOUS ONES BY AN EXACT METHOD
Proc Natl Acad Sci U S A. 1968 August; 60(4): 1535.
PMCID: PMC224951
Corrects: Demetrios G. Magiros. A CLASS OF NONAUTONOMOUS DIFFERENTIAL EQUATIONS REDUCIBLE TO AUTONOMOUS ONES BY AN EXACT METHOD. Proc Natl Acad Sci U S A. 1967 August; 58(2): 412–419.
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