bluuebunny/crossref_metadata_2025_split huggingface dataset:
Oxidation Stability of Virgin Olive Oils from Some Important Cultivars in East Mediterranean Area in Turkey
Authors: Kıralan Mustafa , Bayrak Ali , Özkaya Mücahit Taha 
Published: December 2008

AbstractSome important olive cultivars (Kilis yağlık, Halhalı, Karamani, Haşebi, Nizip yağlık) in East Mediterranean Area were studied. Olive fruits were processed on a low‐scale mill equipped with a basket centrifuge. Basic quality parameters, the content of total polyphenols, o‐diphenols, oxidation stability (Rancimat) and antiradical activity [1,1‐diphenyl‐2‐picrylhydrazyl (DPPH)] were determined in oil samples. The highest induction period (IP) was 36.42 h, found in the Halhalı cultivar (from Gaziantep province), which also had strong radical scavenging activity (RSA) (96.72% in methanol:water extract and 94.91% in total oil) in all samples. The total phenol and o‐diphenol content for this cultivar were 495.42 and 76.89 mg caffeic acid/kg oil, respectively. The oxidation stability and antiradical activity of the Kilis yağlık cultivar (from Kilis province) was very poor when compared to other cultivar (IP; 10.40 h, RSA in methanol: water extract; 30.94%, RSA in total oil; 52.31%). In addition total phenol and o‐diphenol content for this cultivar were 38.31 and 5.03 mg caffeic acid/kg oil, respectively.
Minimal generating systems of a subgroup of SL(2, ℂ)
Authors: Rosenberger Gerhard 
Published: December 2008

Let H be any group. We call a cardinal number r the rank r(H) of H if H can be generated by a generating system X with cardinal number r but not by a generating system Y with cardinal number s less than r. Let r(H) be the rank of H.We call a generating system X of H a minimal generating system (M.G.S.) of H if X has the cardinal number r(H).In this note we prove the following.
Maximum-likelihood estimation of the parameters of a four-parameter class of probability distributions
Authors: Lehnigk Siegfried H. 
Published: December 2008

We shall concern ourselves with the class of continuous, four-parameter, one-sided probability distributions which can be characterized by the probability density function (pdf) classIt depends on the four parameters: shift c ∈ R, scale b > 0, initial shape p < 1, and terminal shape β > 0. For p ≦ 0, the definition of f(x) can be completed by setting f(c) = β/bΓ(β−1)>0 if p = 0, and f(c) = 0 if p < 0. For 0 < p < 1, f(x) remains undefined at x = c; f(x)↑ + ∞ as x↓c.
The Borel structure of iterates of continuous functions
Authors: Humke Paul D. , Laczkovich M. 
Published: December 2008

Let C[0,1] be the Banach space of continuous functions defined on [0,1] and let C be the set of functions f∈C[0,1] mapping [0,1] into itself. If f∈C, fk will denote the kth iterate of f and we put Ck = {fk:f∈C;}. The set of increasing (≡ nondecreasing) and decreasing (≡ nonincreasing) functions in C will be denoted by ℐ and D, respectively. If a function f is defined on an interval I, we let C(f) denote the set of points at which f is locally constant, i.e.We let N denote the set of positive integers and NN denote the Baire space of sequences of positive integers.
Normal -Fitting classes
Authors: Beidleman J. C. , Tomkinson M. J. 
Published: December 2008

The authors together with M. J. Karbe [Ill. J. Math.33 (1989) 333–359] have considered Fitting classesof-groups and, under some rather strong restrictions, obtained an existence and conjugacy theorem for-injectors. Results of Menegazzo and Newell show that these restrictions are, in fact, necessary.The Fitting classisnormalif, for eachis the unique-injector ofG.isabelian normal if, for each. For finite soluble groups these two concepts coincide but the class of Černikov-by-nilpotent-groups is an example of a nonabelian normal Fitting class of-groups. In all known examples in which-injectors existis closely associated with some normal Fitting class (the Černikov-by-nilpotent groups arise from studying the locally nilpotent injectors).Here we investigate normal Fitting classes further, paying particular attention to the distinctions between abelian and nonabelian normal Fitting classes. Products and intersections with (abelian) normal Fitting classes lead to further examples of Fitting classes satisfying the conditions of the existence and conjugacy theorem.
Sur les algebres de Bernstein V: Les algebres de Bernstein Jordan faibles
Authors: Labra Alicia , Mallol Cristian , Micali Artibano , Varro Richard 
Published: December 2008

Nous Présentons ici l'étude, dans l'optique exhibée dans [7], d'une catégorie d'algèbres à idempotents, commutatives, non associatives, définies par des relations. On y trouve une structure qui n'est en général ni pondérée ni de Jordan et où, cependant, ces conditions sont équivalentes.Following a previous paper, we study here a class of commutative and non associative algebras with idempotents and defined by relations. We find a structure which is not, in general, baric or Jordan but where these notions are equivalent.
Almost Hermitian homogeneous structures
Authors: Abbena Elsa , Garbiero Sergio 
Published: December 2008

Let (M, g, J) be an almost Hermitian manifold. More precisely, M is a ∞ differentiable manifold of dimension 2n, J is an almost complex structure on M, i.e. it is a tensor field of type (1, 1) such thatfor any X∈(M), ((M) is the Lie algebra of ∞ vector fields on M), and g is a Riemannian metric compatible with J, i.e.
An iteration method for the determination of an unknown boundary condition in a parabolic initial-boundary value problem
Authors: Pilant Michael , Rundell William 
Published: December 2008

Consider the initial boundary value problemIn the context of the heat conduction problem, this models the case where the heat flux across the ends at the rod is a function of the temperature. If the heat exchange between the rod and its surroundings is purely by convection, then one commonly assumes that f is a linear function of the difference in temperatures between the ends of the rod and that of the surroundings, (Newton's law of cooling). For the case of purely radiative transfer of energy a fourth power law for the function f is usual, (Stefan's law).
Lacunary Müntz systems
Authors: Borwein Peter , Erdélyi Tamás 
Published: December 2008

The classical theorem of Müntz and Szász says that the span ofis dense in C[0,1] in the uniform norm if and only if . We prove that, if {λi} is lacunary, we can replace the underlying interval [0,1] by any set of positive measure. The key to the proof is the establishment of a bounded Remez-type inequality for lacunary Müntz systems. Namely if A ⊆ [0,1] and its Lebesgue measure µ(A) is at least ε > 0 thenwhere c depends only on ε and Λ (not on n and A) and where Λ:=infiλi+1/λi>1.
Finite travelling waves for semilinear parabolic systems
Authors: Wang Ming-Xin 
Published: December 2008

In this paper, finite travelling waves for the semilinear parabolic systemsare studied, where di > 0, ei > 0, mij ≥ 0 for all 1 ≤ i,j ≤ n, and for all 1 ≤ i ≤ n. Let M = (mij)n × n and A = I – M. It will be proved that (*) has finite travelling waves if and only if all principal minors of A are positive. Moreover, some asymptotic behaviours of finite travelling waves will be obtained.
On a question of Milnor concerning singularities of maps
Authors: Rees Elmer G. 
Published: December 2008

AbstractRestrictions are given on the dimensions m and k for which there is a map f: ℝ m → ℝk whose Jacobian has rank k in a neighbourhood of a singular point if f is either quadratic or even. The restrictions are shown to be best possible in the quadratic case.
The asymptotic behaviour of the mean-square of fractional part sums
Authors: Kühleitner Manfred , Nowak Werner Georg 
Published: December 2008

AbstractIn this article we consider sumsS(t) = Σnψ(tf(n/t)), where ψ denotes, essentially, the fractional part minus ½fis aC4-function withf″ non-vanishing, and summation is extended over an interval of ordert. For the mean-square ofS(t), an asymptotic formula is established. Iffis algebraic this can be sharpened by the indication of an error term.
A mathematician among the molasses barrels: Maclaurin's unpublished memoir on volumes Introduction: Maclaurin's memoir and its place in eighteenth-century Scotland
Authors: Grabiner Judith V. 
Published: December 2008

Suppose we are given a solid of revolution generated by a conic section. Slice out a frustum of the solid [14, diagrams pp. 77, 80]. Then, construct a cylinder, with the same height as the frustum, whose diameter coincides with the diameter of the frustum at the midpoint of its height. What is the difference between the volume of the frustum and the volume of this cylinder? Does this difference depend on where in the solid the frustum is taken?The beautiful theorems which answer these questions first appear in a 1735 manuscript by Colin Maclaurin (1698–1746). This manuscript [14], the only original mathematical work by Maclaurin not previously printed, is published here for the first time, with the permission of the Trustees of the National Library of Scotland. (An almost identical copy [15] exists in the Edinburgh University Library.) In this work, Maclaurin proved that the difference between the cylinder constructed as above and the frustum of the given solid depends only on the height of the frustum, not the position of the frustum in the solid. When the solid is a cone, Maclaurin showed that its frustum exceeds the corresponding cylinder by one fourth the volume of a similar cone with the same height. For a sphere, the cylinder exceeds the frustum by one half the volume of the sphere whose diameter is equal to the height of the frustum; this holds, he observed, for all spheres. He derived analogous results for the ellipsoid and hyperboloid of revolution. Finally, for the paraboloid of revolution, he proved that the cylinder is precisely equal to the frustum.
Evaluation of genetic potential of shoot fly resistant sources in sorghum (Sorghum bicolor (L.) Moench)
Authors: ARUNA C. , PADMAJA P. G. 
Published: December 2008

SUMMARYTwelve sorghum lines resistant to sorghum shoot fly were evaluated for their combining ability for shoot fly resistance and traits associated with resistance, using three male sterile lines in two environments. Using a completely randomized block design with three replications, 36 hybrids and 15 parental genotypes were raised. Considerable genetic variation was observed for all the traits studied. Non-additive gene effects played an important role in governing glossiness, seedling vigour and proportion of plants with deadhearts. For trichome density, both additive and non-additive gene actions were important. Among the lines evaluated, those identified to be good combiners were SFCR 1047 for seedling vigour, deadheart proportion and trichome density, RSE 03 for glossiness, deadheart proportion at 21 DAE and trichome density, and SPSFR 94032 for seedling vigour and shoot fly eggs per plant. Genetic diversity and cluster analysis grouped the 15 parents (12 resistant and 3 susceptible parents) into five clusters. Utilization of the resistant lines belonging to different clusters in improving shoot fly resistance in sorghum is discussed.
The linguistic consequences of being a lame
Authors: Labov William 
Published: December 2008

ABSTRACTThe most uniform and characteristic variety of Black English is the grammar used by members of the vernacular culture in pre-adolescent and adolescent years: the ‘Black English Vernacular’. Less regular varieties which show the influence of other dialects, are used by isolated individuals within the community (‘lames’) who are less familiar with vernacular norms. Rules that are categorical for the vernacular are often variable for lames. Within the vernacular peer groups, core members show the most regular or frequent use of characteristic rules such as the deletion ofis. Since most linguists grow up relatively isolated individuals within their own communities, it is important that they become aware of the linguistic consequences of being lame, and apply this knowledge in their methodology.Who's the lame who says he knows the gameAnd where did he learn to play?– The Fall
The social identity of Welsh learners
Authors: Trosset Carol S. 
Published: December 2008

ABSTRACTThe process of the attempted acquisition of spoken Welsh by English speakers in Wales is examined ethnographically in relation to the native association of Welsh-language speech with a Welsh cultural identity. Perceptions of Welsh learners by members of other linguistic groups reveal the symbolic significance of the learning of a minority language. The status of learners as verbal performers is investigated, together with the psychological impact of that status and of the ambiguity of the learners' identity on the learning process. (Bilingualism, language learning, Wales/Welsh)
Five visions of America
Authors: Preston Dennis R. 
Published: December 2008

ABSTRACTThe study of dialect distribution has generally focused on the performance of speakers rather than on their perception of speech variation. The exceptions in so-called attitude studies do not further our understanding of where ordinary speakers believe dialect boundaries exist. Hand-drawn maps from five areas (Hawaii, southeastern Michigan, southern Indiana, western New York, and New York City) are converted into generalized maps of local perceptions of dialect areas of the United States. The maps are compared with one another, with traditional maps of U.S.dialect areas, and with maps of cultural and regional zones of the United States. The maps are shown to be of value in calculating attitudinal factors and may be of considerable importance in determining the existence and scope of such notions as “speech community.” (Dialect geography, language standards, American speech, language attitudes)
Sex, covert prestige and linguistic change in the urban British English of Norwich
Authors: Trudgill Peter 
Published: December 2008

ABSTRACTWomen use linguistic forms associated with the prestige standard more frequently than men. One reason for this is that working-class speech has favourable connotations for male speakers. Favourable attitudes to non-standard speech are not normally expressed, however, and emerge only in inaccurate self-evaluation test responses. Patterns of sex differentiation deviating from the norm indicate that a linguistic change is taking place: standard forms are introduced by middle-class women, non-standard forms by working-class men. (Sociolinguistic variation; linguistic change; women's and men's speech; contextual styles; social class; British English.)
Language in Ethiopia: implications of a survey for sociolinguistic theory and method
Authors: Bender M. L. , Cooper R. L. , Ferguson C. A. 
Published: December 2008

ABSTRACTWork of the Language Survey of Ethiopia is drawn on to illustrate that social surveys can contribute to scientific theories and methods as well as to policy making. Findings with regard to four general problems are indicated: a metric of linguistic distance (considered here in terms of selection of diagnostic traits for linguistic areas, subgrouping of related languages, and dialect variation within a language; measurement of basic cognate frequencies; and testing of mutual intelligibility, a typology of the processes of language spread (lingua franca, mother tongue, superposed variety); verbal deference behavior (in use of Amharic second person pronouns); and pidginization (Simplified Italian of Ethiopia). Some comparisons to findings in sociolinguistics research elsewhere are made. (Language surveys; measurement of linguistic distance; language spread; social meaning and mode of address; pidginization.)
I have nothing to hide: The language of Ilongot oratory
Authors: Rosaldo Michelle 
Published: December 2008

ABSTRACTThe Ilongots of the northern Philippines traditionally value a speech style, ‘crooked language,’ rich in art, wit, and indirection, in certain situations. Purun ‘oratory’, both as event and speech style, is one of these. A brideprice meeting is recounted and examined in detail. Unique features of oratory, in contrast to everyday verbal interaction, depend on its public character, as a scheduled event with large audience (rather than special setting, personnel or ritual), and as having the purpose of achieving explicit, formal understanding and agreement. The special features of oratory include body-motion; category labels for self-reference; degree of use of deferential, self-deprecating, and qualifying phrases and terms; degree of use of metalinguistic terms generally; and rhythms. Degree of use of these features may vary in the course of the event. Acculturation has brought about conflict with the preference of newly educated and missionized Ilongots for ‘straight speech’. In effect, the indirect ‘crooked’ speech style is linked with indigenous egalitarian norms, while the public use of ‘straight speech’ is linked with externally imposed authoritarian relationships. (Speech styles and social structure; public performance everyday interaction; discourse devices; metalinguistic concepts and devices; conflict of speech norms; social change; Northern Luzon, Philippines: Malayo-Polynesian.)
The modernization of the Japanese system of communication
Authors: Neustupný J. V. 
Published: December 2008

ABSTRACTThe aim of this paper is twofold. First, the author wishes to suggest an evolutionary typology of languages (early modern, modern, contemporary, etc.) and to specify the position of present day Japanese on this evolutionary scale. Secondly, it suggests a way to integrate the concept of linguistic modernization with a theory of language problems, and shows that for modernization at least two types of processes, macro-modernization and micro-modernization, must be distinguished. The former concerns such tasks as the establishment of a modern national language and as far as Japan is concerned this process has been completed. The latter process concerns problems such as the individual's use of language. It still awaits its completion. (Sociolinguistic typology, language evolution, linguistic modernization, Japan.)
English and Sinhala bilingualism in Sri Lanka
Authors: Fernando Chitra 
Published: December 2008

ABSTRACTThis study describes the language situation of Sri Lanka (Ceylon) and examines the factors governing the language choice of Sinhalese bilinguals while attempting to correlate such factors with domains and role relations. It also examines the way in which such correlations reflect social differences in Sri Lankan society. The use of two languages by the same speakers almost inevitably affects the forms of the languages so used. The use of English by Sinhalese speakers has led to the functional elaboration of both English and Sinhala. Bilinguals show varying degrees of proficiency in the languages they use. Such disparities in performance have led to differing patterns of bilingualism manifested in different phonological and grammatical features. Materials are drawn from the English of newspapers, fiction, drama, poetry etc. and personal knowledge. (Language as a class indicator; bilingualism; conflict of speech norms; Sri Lankan English.)
Question intonation and sex roles
Authors: Edelsky Carole 
Published: December 2008

ABSTRACTIn order to find out if more women than men use rising intonation when they answer questions to which only they have the answer, 154 men and 16 women were approached by either a male or a female interviewer and asked either where they were born or what their favorite color was. Both sexes used straight rising intonation rarely and equally. Women used a rise–fall–rise pattern more than men only when they were approached by a female interviewer. The ‘meaning’ to the speakers themselves of the three contours used is difficult to ascertain since lexical frames provided by some speakers often contradicted the meanings previously attributed to the contours by other writers.Listeners' associations with the contours were tested with a matched guise tape of three male and three female voices each using each of three contours produced during the interviews (straight fall, straight rise, and rise–fall–rise). Listeners associated simpler rises with more stereotypically feminine attributes; they associated the female voices with feminine attributes regardless of the contour used; and they associated both male and female voices with more stereotypically feminine attributes when the speakers used the straight rise contour. In light of the lack of production evidence in this study to account for the source of these 30 listeners' associations of terminal rises with feminine attributes, some other possibilities are proposed to account for the associational ties. (Sex differences in speech, language attitudes.)
The training of the man of words in talking sweet
Authors: Abrahams Roger D. 
Published: December 2008

AbstractDiscussions of Negro non-standard English (or Black English) emphasizes the most socially stigmatizing features. It is clear, however, that within anglophonic black communities a diglossia situation occurs in which the high form is a speaking variety close to oratorical standard English. This paper explores how this high variety is learned in one Afro-American peasant community in the West Indies as an illustration of the social and ritual importance of certain codes. (diglossia, Creole languages, the formal teaching of speech varieties, oratory.)
Speculations on the growth of ethnobotanical nomenclature
Authors: Berlin Brent 
Published: December 2008

AbstractAssuming the ethnobiological classification evolves as a reflection of cultural development, data are presented which suggest an orderly and predictable temporal appearance of ethnobotanical nomenclatural categories. A general correspondence is seen to exist between the number of categories encoded at any point in time in a particular language's history and degree of sociocultural development. The principles of lexical marking are applied to ethnobiological nomenclature as a means of inferring relative age of the corresponding categories. (Ethnoscience, primitive classification, language universals, cultural evolution.)
The effects of speech style and other attributes on teachers' attitudes toward pupils
Authors: Seligman C. R. , Tucker G. R. , Lambert W. E. 
Published: December 2008

AbstractThis study examined some of the clues which teachers use to form attitudes toward students. Photographs, speech samples, drawings and compositions, obtained from Grade III boys, served as the stimulus materials. These were randomly combined and presented to student-teachers as examples of the personal characteristics and schoolwork of certain pupils. The student-teacher judges were asked to form subjective impressions of the pupils and to evaluate them on various characteristics using semantic differential scales. The results indicated that the voice and photograph cues significantly affected their judgments of the students' intelligence and personal characteristics.
A classification of illocutionary acts
Authors: Searle John R. 
Published: December 2008

ABSTRACTThere are at least a dozen linguistically significant dimensions of differences between illocutionary acts. Of these, the most important are illocutionary point, direction of fit, and expressed psychological state. These three form the basis of a taxonomy of the fundamental classes of illocutionary acts. The five basic kinds of illocutionary acts are: representatives (or assertives), directives, commissives, expressives, and declarations. Each of these notions is defined. An earlier attempt at constructing a taxonomy by Austin is defective for several reasons, especially in its lack of clear criteria for distinguishing one kind of illocutionary force from another. Paradigm performative verbs in each of the five categories exhibit different syntactical properties. These are explained. (Speech acts, Austin's taxonomy, functions of speech, implications for ethnography and ethnology; English.)