Search
Now showing items 101-110 of 179
The origin, identification and cytogenetic behavior of interchange monosomes and the types of disjunction in interchange heterozygotes of Gossypium hirsutum L
(1969)
Interchange monosomes, which have segments of two non-homologous chromosomes and hence form a chain of three chromosomes at MI of meiosis, are fertile and readily transmissible in Gossypium hirsutum. Tests for chromosome ...
Relationship of carbohydrate trend to the morphological development of Schizachyrium scoparium (Michx.) Nash. tillers
(1969)
A study was conducted on little bluestem to relate seasonal carbohydrate trends with developmental morphology and to determine the relative importance and functional roles of the major metabolic carbohydrates. The morphological ...
An experiment to compare student achievement in beginning welding when taught by lecture-demonstration versus modified programmed instruction
(1969)
The purpose of the investigation was to determine how well students learn a highly manipulative skill without direct teacher help. Programed instruction and single concept films were developed for use in the study. The ...
An investigation into the mechanism of oil production by intermittent steam injection
(1969)
Since the thermal recovery process of the intermittent steam injection was accidentally discovered in Venezuela in 1959, it has become one of the most promising producing methods for recovery of high viscosity petroleum. ...
The mutual impedance between coupled electrically thick folded dipoles
(1969)
In this paper an analytical expression for the mutual impedance between two identical, electrically thick coupled folded dipoles in nonstaggered parallel orientation has been developed. A boundary value problem was solved ...
An investigation of the effects of sulfuric acid on the physical and chemical properties of portland cement mortar
(1969)
This research was initiated to accomplish the following objectives: 1. Determine what effects selected constituents of portland cement mortar have on the resistance of mortar to sulfuric acid attack. 2. Determine if selected ...
The biology of the tarnished plant bug, Lygus lineolaris (Beauvois), and its nature of damage and control on cotton
(1969)
Rate of development of the tarnished plant bug, Lyqus lineolaris (Beauvois), in the laboratory was found to be influenced by temperature. Duration of the incubation period ranged from an average of 5.2 days in 32 C to 17.5 ...
The mutual impedance between concentric curved dipole antennas above a spherical conducting surface
(1969)
In this paper an analytical expression is derived for the mutual impedance between concentric curved dipole antennas located in close proximity to a conducting sphere. The boundary value problem is solved using the spherical ...