The Running Memory Span for Words

1964 ◽  
Vol 16 (2) ◽  
pp. 81-89 ◽  
Author(s):  
Leo Postman ◽  
Thomas W. Turnage ◽  
Albert Silverstein

This experiment investigates the running memory span for English words of high and of low frequency of usage. The running memory span is measured when a sequence of uncertain length is interrupted and the subject is required to recall the most recent part of the message. The span for the two classes of words was studied as a function of the length of the message and amount of prior practice. In the early stages of practice the span varied inversely with frequency of usage and increased with the length of the message. As practice continued, the difference between words of high and low frequency was largely eliminated and there was a relative decline in the span for the longest series. The major variables which are assumed to determine the length in the span are (a) the number and strength of pre-experimental associations of the items; (b) intraserial and interserial interferences developed during exposure to the series, and (c) the subjects' strategies of deliberate rehearsal.

2017 ◽  
Vol 27 (68) ◽  
pp. 306-313
Author(s):  
Adriana Marques de Oliveira ◽  
Giseli Donadon Germano ◽  
Simone Aparecida Capellini

Abstract: This study aims to compare the performance of male and female dyslexic students in tests of reading words and pseudowords, and comprehension of sentences and texts. The participants were forty-eight students with dyslexia, attending 3rd grade to 5th grade of elementary school (age range 8 to 12 years old), from public and private schools, divided into: GI - 14 girls and GII - 34 boys. The researchers applied tests of Reading process assessment: reading of words, reading of pseudowords, comprehension of sentences, and comprehension of texts. The results showed evidence of difference by sex in reading of low frequency words and sentence comprehension. It was concluded that the discussion on the difference between dyslexic students by sex could be relevant in the educational context, as among the five variables, two provided information for promoting further discussion on the subject, highlighting the importance of further studies.


2017 ◽  
Vol 1 (2) ◽  
pp. 137
Author(s):  
Noorlela Binti Noordin ◽  
Abdul Razaq Ahmad ◽  
Anuar Ahmad

This study was aimed to evaluate the Malay proficiency among students in Form Two especially non-Malay students and its relationship to academic achievement History. To achieve the purpose of the study there are two objectives, the first is to look at the difference between mean of Malay Language test influences min of academic achievement of History subject among non-Malay students in Form Two and the second is the relationship between the level of Malay proficiency and their academic achievement for History. This study used quantitative methods, which involved 100 people of Form Two non-Malay students in one of the schools in Klang, Selangor. This study used quantitative data were analyzed using descriptive statistics and statistical inference with IBM SPSS Statistics v22 software. This study found that there was a relationship between the proficiency of Malay language among non-Malay students with achievements in the subject of History. The implications of this study are discussed in this article.


2019 ◽  
pp. 74-98
Author(s):  
A.B. Lyubinin

Review of the monograph indicated in the subtitle V.T. Ryazanov. The reviewer is critical of the position of the author of the book, believing that it is possible and even necessary (to increase the effectiveness of General economic theory and bring it closer to practice) substantial (and not just formal-conventional) synthesis of the Marxist system of political economy with its non-Marxist systems. The article emphasizes the difference between the subject and the method of the classical, including Marxist, school of political economy with its characteristic objective perception of the subject from the neoclassical school with its reduction of objective reality to subjective assessments; this excludes their meaningful synthesis as part of a single «modern political economy». V.T. Ryazanov’s interpretation of commodity production in the economic system of «Capital» of K. Marx as a purely mental abstraction, in fact — a fiction, myth is also counter-argued. On the issue of identification of the discipline «national economy», the reviewer, unlike the author of the book, takes the position that it is a concrete economic science that does not have a political economic status.


Author(s):  
Lexi Eikelboom

This book argues that, as a pervasive dimension of human existence with theological implications, rhythm ought to be considered a category of theological significance. Philosophers and theologians have drawn on rhythm—patterned movements of repetition and variation—to describe reality, however, the ways in which rhythm is used and understood differ based on a variety of metaphysical commitments with varying theological implications. This book brings those implications into the open, using resources from phenomenology, prosody, and the social sciences to analyse and evaluate uses of rhythm in metaphysical and theological accounts of reality. The analysis relies on a distinction from prosody between a synchronic approach to rhythm—observing the whole at once and considering how various dimensions of a rhythm hold together harmoniously—and a diachronic approach—focusing on the ways in which time unfolds as the subject experiences it. The text engages with the twentieth-century Jesuit theologian Erich Przywara alongside thinkers as diverse as Augustine and the contemporary philosopher Giorgio Agamben, and proposes an approach to rhythm that serves the concerns of theological conversation. It demonstrates the difference that including rhythm in theological conversation makes to how we think about questions such as “what is creation?” and “what is the nature of the God–creature relationship?” from the perspective of rhythm. As a theoretical category, capable of expressing metaphysical commitments, yet shaped by the cultural rhythms in which those expressing such commitments are embedded, rhythm is particularly significant for theology as a phenomenon through which culture and embodied experience influence doctrine.


2010 ◽  
Vol 55 (3) ◽  
pp. 1114-1119 ◽  
Author(s):  
Jia Liu ◽  
Michael D. Miller ◽  
Robert M. Danovich ◽  
Nathan Vandergrift ◽  
Fangping Cai ◽  
...  

ABSTRACTRaltegravir is highly efficacious in the treatment of HIV-1 infection. The prevalence and impact on virologic outcome of low-frequency resistant mutations among HIV-1-infected patients not previously treated with raltegravir have not been fully established. Samples from HIV treatment-experienced patients entering a clinical trial of raltegravir treatment were analyzed using a parallel allele-specific sequencing (PASS) assay that assessed six primary and six secondary integrase mutations. Patients who achieved and sustained virologic suppression (success patients,n= 36) and those who experienced virologic rebound (failure patients,n= 35) were compared. Patients who experienced treatment failure had twice as many raltegravir-associated resistance mutations prior to initiating treatment as those who achieved sustained virologic success, but the difference was not statistically significant. The frequency of nearly all detected resistance mutations was less than 1% of viral population, and the frequencies of mutations between the success and failure groups were similar. Expansion of pre-existing mutations (one primary and five secondary) was observed in 16 treatment failure patients in whom minority resistant mutations were detected at baseline, suggesting that they might play a role in the development of drug resistance. Two or more mutations were found in 13 patients (18.3%), but multiple mutations were not present in any single viral genome by linkage analysis. Our study demonstrates that low-frequency primary RAL-resistant mutations were uncommon, while minority secondary RAL-resistant mutations were more frequently detected in patients naïve to raltegravir. Additional studies in larger populations are warranted to fully understand the clinical implications of these mutations.


In the present communications the effect of oxygen upon the fermentation of glucose and upon the growth of the bacteria, in so far as this affects fermentation, is considered. To this end the organisms have been grown both aerobically and anaerobically, and subsequently made to ferment glucose, both aerobically and anaerobically, with the object of comparing the products of decomposition in the two cases. There are clearly two problems : firstly, the effect of exposure to oxygen during growth upon the subsequent fermentation, whether aerobic or anaerobic, and, secondly, the effect of oxygen admitted during the fermentation. The first question relates to the part played by oxygen in the formation of enzymes, the second to the part played by oxygen in their action on carbohydrates. The first question is considered, though in but a preliminary way, in Section A, the second, more fully, in Section B. Section A. Object of the Experiments . Two results were aimed at in these experiments. Firstly, to compare the products of fermentation of glucose anaerobically, after anaerobic growth, with the products of fermentation anaerobically after previous growth aerobically. And, secondly, to obtain information as to the effect of introducing oxygen during the fermentation itself. This latter consideration, however, though brought to notice by these experiments, is considered only incidentally here because it forms the subject of Section B. In the present section we wish to direct attention particularly to those differences which exist between the fermentation after anaerobic and aerobic growth, not upon the effect of aeration during the fermentation. To point out the difference which previous growth aerobically or anaerobically has made, several analyses from previous experiments are included in Table IV side by side with the completely anaerobic experiments of Tables I, II, and III.


2001 ◽  
Vol 47 (156) ◽  
pp. 37-50 ◽  
Author(s):  
Richard Bintanja ◽  
Carleen H. Reijmer

AbstractThis paper addresses the causes of the prevailing meteorological conditions observed over an Antarctic blue-ice area and their effect on the surface mass balance. Over blue-ice areas, net accumulation is zero and ablation occurs mainly through sublimation. Sublimation rates are much higher than over adjacent snowfields. The meteorological conditions favourable for high sublimation rates (warm, dry and gusty) are due to the specific orographic setting of this blue-ice area, with usually a steep upwind mountainous slope causing strong adiabatic heating. Diabatic warming due to radiation, and entrainment of warm air from aloft into the boundary layer augment the warming. The prevailing warm, dry conditions explain roughly 50% of the difference in sublimation, and the different characteristics of blue ice (mainly its lower albedo) the other 50%. Most of the annual sublimation (∼70%) takes place during the short summer (mainly in daytime), with winter ablation being restricted to occasional warm, dry föhn-like events. The additional moisture is effectively removed by entrainment and horizontal advection, which are maximum over the blue-ice area. Low-frequency turbulent motions induced by the upwind mountains enhance the vertical turbulent transports. Strong gusts and high peak wind speeds over blue-ice areas cause high potential snowdrift transports, which can easily remove the total precipitation, thereby maintaining zero accumulation.


1994 ◽  
Vol 366 ◽  
Author(s):  
Fouad M. Aliev

ABSTRACTWe performed dielectric spectroscopy measurements to study dynamics of collective modes of ferroelectric (FLC) and molecular motion of nematic (NLC) liquid crystals with polar molecules confined in silica macroporous and microporous glasses with average pore sizes of 1000 Å (volume fraction of pores 40%) and 100 Å (27%) respectively. For FLC the Goldstone and the soft modes are found in macropores. The rotational viscosity associated with the soft mode is about 10 times higher in pores than in the bulk. These modes are not detected in micropores although low frequency relaxation is present. The last one probably is not connected with the nature of liquid crystal but is associated with surface polarization effects typical for two component heterogeneous media. The difference between the dynamics of orientational motion of the polar molecules of NLC in confined geometries and in the bulk is qualitatively determined by the total energy Fs of the interaction between molecules and the surface of the pore wall, which is found Fs ≈ 102erg/cm2.


1991 ◽  
Vol 81 (4) ◽  
pp. 1101-1114
Author(s):  
Jerry A. Carter ◽  
Noel Barstow ◽  
Paul W. Pomeroy ◽  
Eric P. Chael ◽  
Patrick J. Leahy

Abstract Evidence is presented supporting the view that high-frequency seismic noise decreases with increased depth. Noise amplitudes are higher near the free surface where surface-wave noise, cultural noise, and natural (wind-induced) noise predominate. Data were gathered at a hard-rock site in the northwestern Adirondack lowlands of northern New York. Between 15- and 40-Hz noise levels at this site are more than 10 dB less at 945-m depth than they are at the surface, and from 40 to 100 Hz the difference is more than 20 dB. In addition, time variability of the spectra is shown to be greater at the surface than at either 335- or 945-m depths. Part of the difference between the surface and subsurface noise variability may be related to wind-induced noise. Coherency measurements between orthogonal components of motion show high-frequency seismic noise is more highly organized at the surface than it is at depth. Coherency measurements between the same component of motion at different vertical offsets show a strong low-frequency coherence at least up to 945-m vertical offsets. As the vertical offset decreases, the frequency band of high coherence increases.


2016 ◽  
Vol 5 (09) ◽  
pp. 83-97
Author(s):  
Claudio Reyes Lozano

Los estudios críticos de género sustancialistas desconocen su posición teórico-política en el momento de explayar algunas de sus hipótesis fundamentales. El presente estudio intenta dar cuenta de las consecuencias éticas que asume llevar hasta el final algunas de estas posiciones teóricas. Advertimos así que obras fundamentales de estos estudios se apropian con claridad, y sin saberlo, de una lógica aristotélica para tratar la asunción material del cuerpo, el sujeto y el género ¿Qué encontramos específicamente en esta lógica? Esta última se caracteriza por tener su raíz en una ontología inamovible, en donde cualquier intento de desbaratar el “ser” tiene como respuesta inmediata la exclusión violenta de la diferencia: concretamente observamos esto, dialogando tanto con colegas como legos, en la “violencia académica” pero también en la “violencia cotidiana” ¿Cómo salir del cierre metafísico que ha mantenido durante décadas la violencia y exclusión de aquello que se generó en primera instancia, paradójicamente, como argumentación de tolerancia y emancipación? Pensamos que deconstruyendo el discurso de género aristotélico podremos vislumbrar nuevas hipótesis y posiciones ético-políticas que no recurran, para validarse, a la exclusión violenta de nuevos cuerpos-sujetos-géneros. Some critical gender studies do not know their theoretical and political position at the time to developing some of their basic assumptions. This study attempts to explain the ethical consequences that lead to the end some of these theoretical positions. We realize that fundamental works of these studies clearly appropriating, and without knowing it, an aristotelian logic to justify the assumption of material body, the subject and gender. What specifically found in this logic? It is characterized to found on an immovable ontology, where any attempt to disrupt the “being” has as an immediate violent response to exclude the difference: specifically we observe this, dialoguing with colleagues and laymen, in the “academic violence” but also “everyday violence”. How to get out of the metaphysical closure that maintained for decades the violence and exclusion of what is generated in the first place, paradoxically, as argument of tolerance and emancipation? We think deconstructing the aristotelian discourse of gender can warn new hypotheses and ethical positions that not based, to validate, on a violent exclusion of new bodies-subject-genres positions.


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