New Research In

Table of Contents

April 15, 1957; vol. 43 no. 4

Pathology and Bacteriology

You have access
SPECTROPHOTOMETRIC EXAMINATION OF HYDROGENASE AND NITROGENASE IN SOYBEAN NODULES AND Azotobacter
P. B. Hamilton, A. L. Shug, and P. W. Wilson

PNAS April 15, 1957 43 (4) 297-304; https://doi.org/10.1073/pnas.43.4.297
You have access
OPTICALLY ACTIVE COMPOUNDS FROM RACEMIC MIXTURES BY MEANS OF RANDOM DISTRIBUTION
John H. Northrop

PNAS April 15, 1957 43 (4) 304-305; https://doi.org/10.1073/pnas.43.4.304

Genetics

You have access
THE GENETIC CONTROL OF ADENYLOSUCCINASE IN Neurospora Crassa
Norman H. Giles, C. W. H. Partridge, and Norma J. Nelson

PNAS April 15, 1957 43 (4) 305-317; https://doi.org/10.1073/pnas.43.4.305
You have access
ARE ALL PRODUCTS OF SPERMATOGENESIS REGULARLY FUNCTIONAL?
E. Novitski and Iris Sandler

PNAS April 15, 1957 43 (4) 318-324; https://doi.org/10.1073/pnas.43.4.318
You have access
SHORTENING OF LIFE IN THE OFFSPRING OF MALE MICE EXPOSED TO NEUTRON RADIATION FROM AN ATOMIC BOMB
W. L. Russell

PNAS April 15, 1957 43 (4) 324-329; https://doi.org/10.1073/pnas.43.4.324
You have access
CORRELATED SELECTION FOR MOTILITY AND SEX-INCOMPATIBILITY IN Escherichia Coli K12
P. D. Skaar, Alan Richter, and Joshua Lederberg

PNAS April 15, 1957 43 (4) 329-333; https://doi.org/10.1073/pnas.43.4.329

Mathematics

You have access
A UNIFIED THEORY OF GENERAL RELATIVITY OF GRAVITATION AND ELECTROMAGNETISM. IV
Luther P. Eisenhart

PNAS April 15, 1957 43 (4) 333-336; https://doi.org/10.1073/pnas.43.4.333
You have access
INTEGRATION OVER HILBERT SPACE AND OUTER EXTENSIONS
K. O. Friedrichs and H. N. Shapiro

PNAS April 15, 1957 43 (4) 336-338; https://doi.org/10.1073/pnas.43.4.336
You have access
FACTORIZATION IN THE GROUP ALGEBRA OF THE REAL LINE
Walter Rudin

PNAS April 15, 1957 43 (4) 339-340; https://doi.org/10.1073/pnas.43.4.339

Physics

You have access
SPECIFICITY OF THE LONDON-EISENSCHITZ WANG FORCE
Jerrold M. Yos, William L. Bade, and Herbert Jehle

PNAS April 15, 1957 43 (4) 341-346; https://doi.org/10.1073/pnas.43.4.341

Psychology

You have access
THE AUDITORY SENSITIVITY OF THE ATLANTIC GRASSHOPPER
Ernest Glen Wever and Jack A. Vernon

PNAS April 15, 1957 43 (4) 346-348; https://doi.org/10.1073/pnas.43.4.346
You have access
SOME EFFECTS OF ALTERNATION RATE IN A TIME-CORRELATED REINFORCEMENT CONTINGENCY
W. N. Schoenfeld and W. W. Cumming

PNAS April 15, 1957 43 (4) 349-354; https://doi.org/10.1073/pnas.43.4.349

ZoÃlogy and Anatomy

You have access
TRANSPLANTATIONS OF THE EMBRYONIC CHICK FOREBRAIN REGION BEFORE ESTABLISHMENT OF CIRCULATION
Petar N. Martinovitch

PNAS April 15, 1957 43 (4) 354-356; https://doi.org/10.1073/pnas.43.4.354

Browse PNAS issues

In this issue

Sign up for alerts

Jump to