Blank Form and Reduction as Determinants of Mousterian Scraper Morphology

1992 ◽  
Vol 57 (1) ◽  
pp. 115-128 ◽  
Author(s):  
Steven L. Kuhn

Variation in the forms of Mousterian tools has been attributed to a number of factors, including style, function, and more recently, differential reduction. This study compares the influences of two factors, reduction and the shapes of tool blanks, on the forms of scrapers from a Mousterian site in Italy. In the subject assemblages, the shapes of the tool blanks had a much stronger influence on scraper forms than had reduction. To the extent that blank form affects typology in other cases, explanations of contrasts among Mousterian assemblages would need to account for the use of alternative techniques of flake production. Since typological variation is multicausal, it would also appear more profitable to focus directly on variables pertinent to current research issues, rather than on reinterpreting the typology.

2002 ◽  
Vol 33 (1) ◽  
pp. 91-96 ◽  
Author(s):  
W. SELLWOOD ◽  
N. TARRIER ◽  
J. QUINN ◽  
C. BARROWCLOUGH

Background. A variety of factors are related to compliance with medication in schizophrenia, but little attention has been paid to the role of families. Carers' knowledge or expressed emotion (EE) may be related to compliance. The aim of the present study was to evaluate the relevance of these two factors, as well as their relationships with other variables for the prediction of compliance.Method. A sample of patient–carer pairs (N=79) involved in a family intervention for schizophrenia trial was recruited. Compliance, symptoms, social functioning and attitudes to their carers were assessed in patients. Carers' EE, knowledge and psychopathology were also evaluated.Results. A number of factors were related to compliance, including carers' EE and patients' psychotic symptoms, which contributed independently to not taking medication. Carers' knowledge about schizophrenia and other groups of symptoms was not related to compliance.Conclusions. EE may be an important factor to account for in the understanding of patients' compliance and the direction of the relationship between EE and compliance should be the subject of further study.


2000 ◽  
Vol 421 ◽  
pp. 1-14 ◽  
Author(s):  
HERBERT E. HUPPERT

George Batchelor was one of the giants of fluid mechanics in the second half of the twentieth century. He had a passion for physical and quantitative understanding of fluid flows and a single-minded determination that fluid mechanics should be pursued as a subject in its own right. He once wrote that he ‘spent a lifetime happily within its boundaries’. Six feet tall, thin and youthful in appearance, George's unchanging attire and demeanour contrasted with his ever-evolving scientific insights and contributions. His strongly held and carefully articulated opinions, coupled with his forthright objectivity, shone through everything he undertook.George's pervasive influence sprang from a number of factors. First, he conducted imaginative, ground-breaking research, which was always based on clear physical thinking. Second, he founded a school of fluid mechanics, inspired by his mentor G. I. Taylor, that became part of the world renowned Department of Applied Mathematics and Theoretical Physics (DAMTP) of which he was the Head from its inception in 1959 until he retired from his Professorship in 1983. Third, he established this Journal in 1956 and actively oversaw all its activities for more than forty years, until he relinquished his editorship at the end of 1998. Fourth, he wrote the monumental textbook An Introduction to Fluid Dynamics, which first appeared in 1967, has been translated into four languages and has been relaunched this year, the year of his death. This book, which describes the fundamentals of the subject and discusses many applications, has been closely studied and frequently cited by generations of students and research workers. It has already sold over 45 000 copies. And fifth, but not finally, he helped initiate a number of international organizations (often European), such as the European Mechanics Committee (now Society) and the biennial Polish Fluid Mechanics Meetings, and contributed extensively to the running of IUTAM, the International Union of Theoretical and Applied Mechanics. The aim of all of these associations is to foster fluid (and to some extent solid) mechanics and to encourage the development of the subject.


2018 ◽  
Vol 30 (2) ◽  
pp. 147-174 ◽  
Author(s):  
Laurel MacKenzie

AbstractThis paper investigates analogical leveling in a small set of English nouns that have irregular plural forms. In these nouns, all of which end in a voiceless fricative, the fricative standardly voices in the plural (e.g., wolf–wol[v]es, path–pa[ð]s, house–hou[z]es). Using audio data from three large spoken corpora of American English, I demonstrate that this stem-final fricative voicing is variable and conditioned by a number of factors, most notably the identity of the stem-final fricative—with /f/-final lexemes (e.g., wolf), /θ/-final lexemes (e.g., path), and the /s/-final lexeme house all patterning differently in apparent time—and the frequency of a lexeme in its plural form. I argue that the way these two factors affect the variation is reminiscent of the patterns seen in children's first language acquisition errors, providing a potential source for the variation and underscoring the importance of considering morphophonological factors when accounting for patterns of change.


Perception ◽  
1989 ◽  
Vol 18 (1) ◽  
pp. 83-91 ◽  
Author(s):  
Keiji Uchikawa ◽  
Hiromi Uchikawa ◽  
Robert M Boynton

Color samples selected from the OSA Uniform Color Scales set were viewed without any surround. Separate light sources were used to illuminate the samples and to control the state of adaptation of the subject, thereby separating two factors that are normally confounded. A color-naming procedure was used to assess shifts in color appearance produced by altering the spectral distributions of one or both light sources. The results confirm that chromatic adaptation, when it is the only factor operating, can mediate partial color constancy.


1991 ◽  
Vol 249 ◽  
Author(s):  
Mohamed N. Rahaman

ABSTRACTThe sintering rate of a ceramic powder matrix can be reduced significantly by the presence of rigid inclusions. The factors that lead to this reduced sinterability have been the subject of much debate in the last 5–10 years. Recent work indicate that the reduction in the matrix sinterability is a processing-related problem. The main factors that control the sinterability of ceramic particulate composites include the packing of the matrix immediately surrounding the inclusions and interactions between the inclusions which constrain the matrix. A processing method which avoids the difficulties associated with these two factors is outlined. The method involves the synthesis of coated inclusion particles. Composites containing up to 40 volume percent inclusions can be freely sintered in the solid state to full density.


Author(s):  
Caitriona Noonan ◽  
Amy Genders

Research commissioned by Ofcom categorises arts television as a genre ‘at risk’ of disappearing as relatively small audiences are unable to offset increased production costs. A decline is also evident in Ofcom's own research which finds that in the five years to 2011, spending on arts programming by the five main terrestrial broadcasters fell by 39 per cent. This decline is the confluence of a number of factors. Decreases in commissioning and production budgets mean fewer resources for producers. Within specialist factual genres such as arts, this can have a limiting effect on the coverage of the subject, access to expertise, and the aesthetics of the final programme. Without a deliberate strategy to save it, the downward trajectory of arts content on British public service broadcasting is unlikely to be reversed.


2017 ◽  
Vol 2017 (4) ◽  
pp. 29-51
Author(s):  
Varvara Nazarova

The problem of IPO underpricing became relevant in the late 1960s. Since then various theories were advanced connecting this phenomenon to many factors: from information asymmetry in the market to the cultural peculiarities of the host country. The article aims to identify factors that have a significant influence on the occurrence and magnitude of underpricing of shares in Russian companies preparing their IPOs. Research and theories of foreign and Russian authors devoted to the subject were analyzed, which uncovered 7 main factors, which are further considered in terms of their influence on the occurrence and magnitude of underpricing. To test the hypotheses, data for 138 IPOs of Russian companies for 1996-2015 was collected. Analysis showed that two factors influence the occurrence and the magnitude of the underpricing of Russian companies’ IPOs: the amount of accommodation and the provision of accommodation prices in the price corridor, announced by the company. In conclusion, recommendations for Russian issuers on the formation of the strategies of the IPO are made.


2015 ◽  
Vol 15 (1) ◽  
pp. 101-123
Author(s):  
Ahmed Samir Hassanein

While the complementary regime of the International Criminal Court (icc) has been the subject of extensive examination in the literature, this article offers a new reading of the inability scenario that establishes a clear distinction between two different forms of inability under Article 17(3) of the Rome Statute. An in-depth analysis of this article as this review suggests, would show that the reason behind the inability of a national judicial system is attributed to one of two factors or even the two together; first, physical factors, in the case of ‘total or substantial collapse’, and second, legal factors, in the case of ‘unavailability of national judicial system’. Significantly, the aforementioned distinction is not limited to theoretical debate, but it has pivotal legal ramifications as the emerging practice of the icc shows, or rather does not show, as it seems that the icc confuses the two forms of inability.


2019 ◽  
Vol 38 (2) ◽  
pp. 155-190
Author(s):  
Markus Bader ◽  
Yvonne Portele

Abstract Three experiments investigated the interpretation and production of pronouns in German. The first two experiments probed the preferred interpretation of a pronoun in contexts containing two potential antecedents by having participants complete a sentence fragment starting either with a personal pronoun or a d-pronoun. We systematically varied three properties of the potential antecedents: syntactic function, linear position, and topicality. The results confirm a subject preference for personal pronouns. The preferred interpretation of d-pronouns cannot be captured by any of the three factors alone. Although a d-pronoun preferentially refers to the non-topic in many cases, this preference can be overridden by the other two factors, linear position and syntactic function. In order to test whether interpretive preferences follow from production biases as proposed by the Bayesian theory of Kehler et al. (2008), a third experiment had participants freely produce a continuation sentence for the contexts of the first two experiments. The results show that personal pronouns are used more often to refer to a subject than to an object, recapitulating the subject preference found for interpretation and thereby confirming the account of Kehler et al. (2008). The interpretation results for the d-pronoun likewise follow from the corresponding production data.


2014 ◽  
Vol 12 (4) ◽  
pp. 46-56 ◽  
Author(s):  
Haoxiong Yang ◽  
Wen Wang

This paper studies the subject of pricing decisions of online dual-channel based on hybrid decisions wherein a manufacturer introduces direct online marketing channels beyond the traditional online retail channels. The purpose is to study how to balance the interests of different online channels and maximize the overall efficiency of the channel. Having considered both online channels' satisfaction and the hidden costs of channel selection, by means of the demand function of both channels derived from a consumer utility and selection model, the author investigates the impacts of these two factors on the online dual-channel pricing decisions. This article also further analyzes the impact of changes in these two factors for manufacturers, retailers and channel' total revenue, with the purpose to provide decision-making reference for the enterprises' managers in the supply chain to develop optimal pricing strategies.


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