scispace - formally typeset
Search or ask a question

Showing papers by "Flinders University published in 1973"


Journal ArticleDOI
TL;DR: Evidence is presented that indicates a regular sub-structure in nuclear nucleoprotein with regularly distributed sites that are specifically susceptible to the cellular Ca-Mg endonuclease.

1,015 citations



Journal ArticleDOI
TL;DR: In this article, the authors measured the sum energy spectrum of electrons in argon and found a peak which is analyzed in terms of electron-electron correlations and showed that the peak is a peak in the energy spectrum.
Abstract: Momentum distributions have been measured separately for $3p$ and $3s$ electrons in argon. The measured summed energy spectrum shows the presence of a peak which is analyzed in terms of electron-electron correlations.

119 citations


Journal ArticleDOI
TL;DR: An endonuclease has been identified which requires both calcium and magnesium ions for activity and which is responsible for the calcium primed DNA synthesis observed in certain nuclear preparations.

117 citations


Journal ArticleDOI
Eileen Haley1
01 Nov 1973-Politics

104 citations


Journal ArticleDOI
TL;DR: Myelin basic protein was shown to be a substrate for protein kinase from rabbit muscle and one of the major sites of phosphorylation was the serine residue in the sequence Gly-Arg-Gly-Leu-Ser- Leu.
Abstract: Myelin basic protein was shown to be a substrate for protein kinase from rabbit muscle. One of the major sites of phosphorylation was the serine residue in the sequence Gly-Arg-Gly-Leu-Ser-Leu. The arginine residue in this sequence is known to be a substrate for a protein methylase.

79 citations


Journal ArticleDOI
TL;DR: In a study involving 382 Ss in introductory psychology, rating and pair-comparison procedures for assessing the importance of terminal and instrumental values were compared with the standard ranking procedure developed by Rokeach as discussed by the authors.
Abstract: In a study involving 382 Ss in introductory psychology, rating and pair-comparison procedures for assessing the importance of terminal and instrumental values were compared with the standard ranking procedure developed by Rokeach. Effects of order of presentation of the value sets (terminal/instrumental versus instrumental/terminal) were also investigated. Results indicated that assessment procedure per se had little effect on the average value systems that were obtained. Nor were there replicable order effects across procedures. Some sex differences in the importance assigned to particular values were, however, replicated. Advantages and disadvantages of ranking, rating, and pair-comparison procedures for assessing the importance of values were discussed.

71 citations


Journal ArticleDOI
TL;DR: UV irradiation caused depolarization of the membrane potential (p.d.) and a decrease in membrane resistance and an apparent imbalance in the charge transferred across the resting or irradiated plasmalemma, suggest the participation of another ion species as well as K+, Na+ and Cl−.
Abstract: The effects of 253.7 nm ultraviolet (UV) radiation on the membrane properties ofChara corallina have been studied. UV irradiation caused depolarization of the membrane potential (p.d.) and a decrease in membrane resistance. These effects were largely reversible with steady values being obtained within 40 minutes after the UV was turned off. The effects on ionic fluxes of Na+, K+ and Cl− have also been studied using radioactive tracer techniques. The influxes were unchanged by irradiation. The chloride efflux was increased sevenfold during the irradiation period but recovered to the pre-irradiation value within 30 minutes after the irradiation period. The potassium efflux was also increased and reached a maximum 10 minutes after irradiation. The resting potential and the average depolarized p.d. reached during irradiation were in good agreement with those calculated from permeability coefficients indicated by the observed passive fluxes, using the Goldman equation for p.d. However, the plasmalemma resistance and its change due to irradiation did not match the values calculated from the same permeability coefficients used to estimate p.d. This disagreement, and an apparent imbalance in the charge transferred across the resting or irradiated plasmalemma, suggest the participation of another ion species as well as K+, Na+ and Cl−.

59 citations


Journal ArticleDOI
TL;DR: In this article, a distorted wave off-shell impulse approximation is derived and shown to fit the data within experimental error, showing that the shape of the angular correlation at energies from 200 to 800 eV depends only on momentum transfer.
Abstract: The angular correlation for ($e,2e$) experiments involving knock out of the least-bound electrons in helium and argon is compared with theory. A distorted-wave off-shell impulse approximation is derived and shown to fit the data within experimental error. Outstanding features are that the shape of the angular correlation at energies from 200 to 800 eV depends only on the momentum transfer. Hence the angular correlation is directly related to the momentum wave function of the struck electron. The reaction is sensitive enough to distinguish between different approximations for the wave function.

55 citations


Journal ArticleDOI
TL;DR: It is proved in the first section o f this note that the weak closure of a non-atomic finitedimensional space-valued measure is convex if the range-space is assumed metrizable or if the a-algebra serving for the domain o f the measure is essentially countably generated.
Abstract: It has been known, since 1940, that the range of a non-atomic finitedimensional space-valued measure on a a-algebra is a compact convex set (Liapunov [7]). But this fails to be true, in general, for measures with values in an arbitrary locally convex topological vector space, even a Banach space. In fact, examples have been constructed o f non-atomic measures with closed but non-convex and non-compact range and even with non-closed non-convex range (see, e.g., Uhl [10]). It is proved in the first section o f this note that the weak closure o f the range o f such measure is convex if the range-space is assumed metrizable or if the a-algebra serving for the domain o f the measure is essentially countably generated, but, in general, even the weak closure o f the range does not have to be convex. The second and third sections are devoted to the problem of expressing every member o f the closed convex hull o f the range as the integral of a function with values in [0, 1]. Solution of this problem gives conditions on whether or not every extremal point of the closed convex hull o f the range belongs to the range. In the final section the results are generalized slightly in order to show the relevance o f these results to the uniqueness questions in Linear Time Optimal Control Theory.

51 citations


Journal ArticleDOI
TL;DR: As response complexity increased in terms of the number of sets of response units that have to be organized into a spatio-temporal sequence, the latency correspondingly increased, however latency was not affected by changes in the amount of force exerted, or in simple reversal movements.
Abstract: Two series of experiments are described in which RT of responses of varying complexity is investigated. Complexity of arm movements was manipulated in terms of (a) the amount of force exerted in resisted movements, (b) the distance moved by the limb and the direction of movement, using reversing or continuing movements, and (c) the combining of the arms in reversing and continuing movements. Simple and two-choice RT situations were used. As response complexity increased in terms of the number of sets of response units that have to be organized into a spatio-temporal sequence, the latency correspondingly increased. However latency was not affected by changes in the amount of force exerted, or in simple reversal movements. The implications of these results are discussed.

Journal ArticleDOI
01 May 1973-Nature
TL;DR: The part played by true point defects (isolated vacancies and interstitial atoms) in defect solid solutions and in mixed valence non-stoichiometric phases is not clear.
Abstract: THE part played by true point defects—isolated vacancies and interstitial atoms—in defect solid solutions and in mixed valence non-stoichiometric phases is not clear. In many ionic or quasi-ionic structures there is some structural reorganization and at least incipient ordering of defect clusters. In some oxides—notably those of titanium, vanadium, molybdenum and tungsten, in which the covalent component of the bonding is probably strong—slight reduction, with a change in the ratio of oxygen to metal, is accommodated largely by crystallographic shear. A complete sheet of anion sites is eliminated from the structure, forming an extended defect and greatly diminishing the extent to which a deficit of oxygen must be compensated by anion vacancies or interstitial cations. Thus Hyde and Bursill1 found that, in slightly reduced rutile, TiO1.9986, the point defect concentration could hardly exceed 10−4. In more extensively reduced rutile, changes in stoichiometry involve only changes in the spacing between crystallographic shear planes, without detectable concentrations of localized defects.

Journal ArticleDOI
TL;DR: In this article, the effect of inter-solution of the dicarbides on the transformation temperature Tτ has been studied for twenty-six pairs and a relationship established between depression of Tτ and the difference in unit cell volumes ΔV of the DICarbides.

Journal ArticleDOI
TL;DR: In this article, multireflection infrared spectra from nickel films prepared under U.H.V. at room temperature were compared with those from transmission studies on thin films composed of small, discrete particles.

Journal ArticleDOI
TL;DR: In this paper, the authors consider a finite 2-group having a minimal generating set { x 1, …, x r } and show that r = d (G ) is an invariant of G.
Abstract: Let G be a finite 2-group having a minimal generating set { x 1 , …, x r } so that r = d ( G ) is an invariant of G . Suppose further that G has a presentation then .

Journal ArticleDOI
TL;DR: In this article, it was shown that Σn(J) is the smallest congruence having J as its kernel and such that the associated quotient algebra is in Bn.
Abstract: Let B0 ⊂ B1 ⊂ Bn ⊂ … ⊂: Bw be all the non-trivial varieties of distributive pseudocomplemented lattices (L; ∨, ∧, *, 0, 1) considered as algebras of type (2, 2, 1, 0, 0). A subset J of such an algebra L is a congruence-kernel if and only if it is a lattice-ideal and x** ∈ J for each x ∈ J. The smallest congruence having J as its kernel is Θ(J), where a ≡ b (Θ(J)), (a, b ∈ L) if and only if a ∧ c* = b ∧ c* for some c ∈ J. For given 0 ≤ n ≤ w, let Σn (J) be the smallest congruence having J as its kernel and such that the associated quotient algebra is in Bn. Of course, Σw (J) = Θ(J) and the main result of this paper shows that for 1 ≤ n < w, Σn(J) = ∩{Θ(P1 ∩ P2 ∩ … ∩ Pn): J ⊆ P1, P2, …, Pn ⊂ L are minimal prime ideals}.

Book ChapterDOI
01 Jan 1973
TL;DR: In this paper, the authors discuss the extension and closure of vector measures and show that every additive function is extendable from a semi-ring onto the ring, and the σ-additivity carries over.
Abstract: Publisher Summary This chapter discusses the extension and closure of vector measures. The story of extension usually does not start with a ring. One often needs to construct a measure defined originally on a semi-ring or even on a lattice of sets. The passage from a semi-ring to the ring or from a lattice to a semi-ring is usually algebraic in character. Every additive function is extendable from a semi-ring onto the ring, and the σ-additivity carries over. The property of a measure on a semi-ring guarantees extendability onto the σ-ring. The theory of extension, closure, and weak compactness of vector measures has an analogy in a similar theory for vector Daniell integrals.

Journal ArticleDOI
TL;DR: Analyses of floral morphology, inflorescence structure, life form, fruit type, and especially chromosome numbers indicate that Phrygilanthus is a highly heterogeneous and artificial assemblage containing elements now referable to the following ten genera: Cecarria, Desmaria, Gaiadendron, Ligaria, Muellerina, Notanthera, Psittacanthus, Struthanthus, Tripodanthus, andTristerix.
Abstract: The taxonomic composition ofPhrygilanthus has long been a source of confusion. Until recently the genus was considered to be distributed from Mexico, Central and South America, to Australia, New Guinea, and the Philippines. Analyses of floral morphology, inflorescence structure, life form, fruit type, and especially chromosome numbers indicate thatPhrygilanthus, as classically circumscribed, is a highly heterogeneous and artificial assemblage containing elements now referable to the following ten genera:Cecarria, Desmaria, Gaiadendron, Ligaria, Muellerina, Notanthera, Psittacanthus, Struthanthus, Tripodanthus, andTristerix. Phrygilanthus itself is nomenclaturally illegitimate and must be replaced by Notanthera. A synopsis of the genera segregated from thePhrygilanthus group is included. A key to the New World genera of Loranthaceae is also appended as well as a nomenclator indicating the present generic status of taxa at one time or another assigned toPhrygilanthus. One genus,Cecarria, is described as new; five new combinations are made:Cecarria obtusifolia (Merr.) Barlow,Psittacanthus palmeri (Wats.) Barlow & Wiens,Struthanthus panamensis (Rizzini) Barlow & Wiens,Tristerix aphyllus (DC.) Barlow & Wiens, andTristerix grandiflorus (Ruiz & Pavon) Barlow & Wiens.

Journal ArticleDOI
TL;DR: In this article, the authors used the Faddeev equation for the πNN system to study pion absorption and elastic scattering on the deuteron and found that absorption is sensitive to the short range behavior of the wave function.

Journal ArticleDOI
01 Oct 1973-Nature
TL;DR: In this article, the binding energies and momentum distributions for electrons in valence orbitals of a polyatomic molecule, methane, were obtained by the (e,2e) reaction.
Abstract: The first data, obtained by the (e,2e) reaction, are presented on the binding energies and momentum distributions for electrons in valence orbitals of a polyatomic molecule, methane. The vertical ionization potentials obtained for the 1t2 and 2a1 electrons are 13.8±0.15 eV and 23.1±0.1 eV respectively. The angular correlations observed for these groups of electrons are compared with that predicted by the impulse approximation using various calculated wave functions. None of the wave functions used adequately describes the observed momentum distributions.

Journal ArticleDOI
TL;DR: The authors found that average value systems were very similar when compared across groups in the same year (both in 1969 and in 1971) and from 1969 to 1971, but there was little evidence of differences between groups.
Abstract: Students at Flinders University completed Form E of the Rokeach Value Survey early in 1969. A postal survey in mid-1971 using the same test instrument followed up these Ss classified into three groups: those still at Flinders, those who had left to attend another tertiary institution, and those who had quit tertiary studies altogether. Results showed that average value systems were very similar when compared across groups in the same year (both in 1969 and in 1971) and from 1969 to 1971. Some changes occurred in the relative importance of particular values over the 2 1/2 year interval but there was little evidence of differences between groups. Results were related to those of American studies reviewed by Feldman and Newcomb. Problems of research design and interpretation of results in the area of the effects of college impact were discussed.

Journal ArticleDOI
TL;DR: In this paper, the first data obtained by the (e, 2e) reaction on the momentum distributions and binding energies for electrons in a diatomic molecule, namely H2, are presented.

Journal ArticleDOI
TL;DR: In this paper, a number of benzylsilanes have been synthesised and characterised, and the structural features of certain of these compounds are such that the C Si bond is constrained to varying degrees to the nodal plane of the aromatic system.

Journal ArticleDOI
TL;DR: In this article, the effect of music on test anxiety has been investigated in the context of Australian psychophysics, and the authors have shown that music can significantly affect test anxiety.
Abstract: (1973). The effect of music on test anxiety. Australian Psychologist: Vol. 8, No. 3, pp. 220-228.

Journal ArticleDOI
01 Mar 1973
TL;DR: In this article, the study of the various ways in which migrants assimilate to a host culture can proceed at different levels depending upon what aspects of assimilation one decides to focus upon.
Abstract: † School of Social Sciences, Flinders University, Bedford Park, South Australia, 5042. THE study of the various ways in which migrants assimilate to a host culture can proceed at different levels depending upon what aspects of assimilation one decides to focus upon. The process of assimilation is a complex one and various forms can be distinguished. For example, Gordon (1964) lists seven types or stages of assimilation: (1) cultural or behavioural assimilation (acculturation) where cultural patterns have changed towards those of the host society; (2) structural assimilation where the migrant has been able to gain entry into cliques, clubs and institutions within the host society on a primary group level; (3) marital assimilation where extensive intermarriage has taken place; (4) identificational assimilation where a sense of peoplehood based exclusively on the host

Journal ArticleDOI
TL;DR: Evidence was obtained which suggested that the arousal level as indicated by both the subjective and EEG records is not determined solely by either the body temperature or ambient conditions but is a resultant of their combined influences.
Abstract: Two series of experiments were carried out to determine the effect of different body temperatures on two measures of EEG arousal level and thermal comfort. In the first study the hotly temperature was varied systematically within a single experimental session by whole body immersion in a water bath: in the second, the body temperature was maintained at a constant but elevated or depressed level which was varied between sessions. Evidence was obtained which suggested that the arousal level as indicated by both the subjective and EEG records is not determined solely by either the body temperature or ambient conditions but is a resultant of their combined influences.

Journal ArticleDOI
TL;DR: The concentration of cyclic AMP in untreated and acetone-treated mouse epidermis was increased 9–11 fold 10 min. after the intraperitoneal injection of L-isoproterenol, a non-carcinogenic polycyclic hydrocarbon, but was reduced to a 2.7 fold increase when tested after 24 hours.


Journal ArticleDOI
TL;DR: For a completely regular space X, G(X) denotes the free topological group on X in the sense of Graev as discussed by the authors, and it is shown that if X is not totally disconnected then the answer is always in the negative.
Abstract: For a completely regular space X , G(X) denotes the free topological group on X in the sense of Graev. Graev proves the existence of G(X) by showing that every pseudo-metric on X can be extended to a two-sided invariant pseudo-metric on the abstract group G(X) . It is natural to ask if the topology given by these two-sided invariant pseudo-metrics on G(X) is precisely the free topological group topology on G(X) . If X has the discrete topology the answer is clearly in the affirmative. It is shown here that if X is not totally disconnected then the answer is always in the negative.

Journal ArticleDOI
TL;DR: In this article, phase shift-equivalent separable potentials are used to study the sensitivity of the triton binding energy ET to the off-shell behavior of the two-nucleon T matrix.