1,720,952 research outputs found
Author Co-Citation Analysis (ACA): a powerful tool for representing implicit knowledge of scholar knowledge workers
Full text linkIn the last decade, knowledge has emerged as one of the most important and valuable organizational assets. Gradually this importance caused to emergence of new discipline entitled ―knowledge management‖. However one of the major challenges of knowledge management is conversion implicit or tacit knowledge to explicit knowledge. Thus Making knowledge visible so that it can be better accessed, discussed, valued or generally managed is a long-standing objective in knowledge management. Accordingly in this paper author co- citation analysis (ACA) will be proposed as an efficient technique of knowledge visualization in academia (Scholar knowledge workers)
Tagging of Biomedical Articles on CiteULike: A Comparison of User, Author and Professional Indexing
Full text linkThis paper examines the context of online indexing from the viewpoint of three different groups: users, authors, and professional indexers. User tags, author keywords and descriptors were collected from academic journal articles, which were both indexed in Pubmed and tagged on CiteULike, and analysed. Descriptive statistics, informetric measures, and thesaural term comparison shows that there are important differences in the use of keywords between the three groups in addition to similarities which can be used to enhance support for search and browse. While tags and author keywords were found that matched descriptors exactly, other terms which did not match but provided important expansion to the indexing lexicon were found. These additional terms could be used to enhance support for searching and browsing in article databases as well as to provide invaluable data for entry vocabulary and emergent terminology for regular updates to indexing systems. Additionally, the study suggests that tags support organisation by association to task, projects and subject while making important connections to traditional systems which classify into subject categories
Vascular endothelial growth factor restores delayed tumor progression in tumors depleted of macrophages
Full text linkGenetic depletion of macrophages in Polyoma Middle T oncoprotein (PyMT)-induced mammary tumors in mice delayed the angiogenic switch and the progression to malignancy. To determine whether vascular endothelial growth factor A (VEGF-A) produced by tumor-associated macrophages regulated the onset of the angiogenic switch, a genetic approach was used to restore expression of VEGF-A into tumors at the benign stages. This stimulated formation of a high-density vessel network and in macrophage-depleted mice, was followed by accelerated tumor progression. The expression of VEGF-A led to a massive infiltration into the tumor of leukocytes that were mostly macrophages. This study suggests that macrophage-produced VEGF regulates malignant progression through stimulating tumor angiogenesis, leukocytic infiltration and tumor cell invasion
On the sheaf-theoretic SL(2, C) Casson–Lin invariant
No full textWe prove that the (τ-weighted, sheaf-theoretic) SL(2, C) Casson–Lin invariant introduced by Manolescu and the first author is generically independent of the parameter τ and additive under connected sums of knots in integral homology 3-spheres. This addresses two questions asked by Manolescu and the first author. Our arguments involve a mix of topology and algebraic geometry, and rely crucially on the fact that the SL(2, C) Casson–Lin invariant admits an alternative interpretation via the theory of Behrend functions.</p
Beardsley and the Implied Author
No full textAbstract
Some theorists on literary interpretation have suggested a connection between Monroe C. Beardsley’s anti-intentionalism and hypothetical intentionalism based on an implied author. However, a full exploration has never been attempted. I undertake this task in this paper. A close reading of Beardsley reveals that he assumes something very similar to the implied author in interpretation. I distinguish five types of fictional works in terms of their narrative mode and show that my claim stands in at least four of the five types. The significance of my argument lies in exposing the above version of authorism in anti-intentionalism.
Beardsley is generally perceived as advocating the irrelevance of authorial intention to literary interpretation. The common interpretation of his theory is that work-meaning is generated by linguistic conventions, with intention playing no role in meaning-determination. All the interpreter needs is knowledge of public, linguistic conventions in order to recover textual meaning.
Nevertheless, when dealing with the problem of interpretation, Beardsley explicitly talks about attributing textual meaning to a fictional speaker. Although he does not elaborate on the nature of this speaker, clues scattered in his writings point to the striking similarity of this theoretical apparatus to an implied author. The key lies in his presumption that every fictional work must have an ultimate speaker to whom meaning inferred from the text should be attributed. This claim is almost the core of an implied author theory of interpretation.
A difficulty in classifying Beardsley’s view as a version of the implied author position is that his characterization of the story’s presenter might apply better to the story’s narrator than to its implied author. To test this, I examine different types of narrative modes to see whether the fictional speaker merges with the implied author in each of these scenarios.
The first factor to consider for classifying narrative modes is whether the narrator’s presence is explicit or implicit. The narrative scenario in which the narrator is implicit can be further divided into two sub-types: either the story is told from an omniscient viewpoint or centers on the experience of a third-person character. In either case, the story is not told by any of the characters in the story; rather, it is told by an implicit speaker whose words the work purports to be. It seems reasonable to identify this fictional speaker with the implied author, for both function as the subject to which textual meaning is attributed.
As for the narrative mode in which the narrator is explicit, this involves first-person narratives. In these, either the narrator is reliable or unreliable. When the narrator is unreliable, a transcendental perspective is required in determining the text’s meaning, because what is said ultimately in the work is not equivalent to what is literally said by the unreliable narrator. It follows that an implicit speaker has to be assumed and she again coincides with the implied author.
Where the narrator is reliable but textual meaning transcends what is literally expressed, an implicit speaker is at play again. This narrative scenario is thus better classified as a case in which the narrator’s presence is implicit. This leaves us with the narrative scenario in which the narrator is a reliable spokesperson for the implied author.
The identification of the narrator with the implied author in the case last mentioned is controversial. The crucial difference between them is that the former is dramatized in the story while the latter is not. I accept that the narrator here is not happily called an implied author, though I also point out several similarities between the two.
Finally, I discuss four complications to my argument. The first concerns multiple points of view in a story. To accommodate this kind of narrative, Beardsley could argue that an implicit narrator is needed to explain the definite meaning concealed behind what is literally said by different characters. The second complication is about the ontological status accorded to the narrator and the implied author. It might be objected that the two reside in different fictional worlds and this is what makes their merging impossible. But it is questionable whether this is a definitional feature of the implied author; moreover, the interpreter can take the implied author to be an instrumentalist concept and hence avoid talk about the ontological status of fictional entities. The third complication claims that versions of the implied author position developed by philosophers tend to be based on a contextualist ontology of literature; however, Beardsley’s account is acontextual. This is not true, for Beardsley has exhibited contextualist leanings in his writings. Finally, it has been objected that the formalist resources Beardsley has are not enough to guarantee a single right interpretation. But if Beardsley is actually a contextualist, contextual constraints will come into play and raise the chance of getting a single right interpretation.
The article concludes by reflecting on the significance of the misrepresentation of anti-intentionalism: it is the intention of the actual author which anti-intentionalism is against. The position in question is actually developed in an intentionalist framework based on the implied author.</jats:p
lin-31, a Caenorhabditis elegans HNF-3/fork head transcription factor homolog, specifies three alternative cell fates in vulva development
No full textLate events in the cell-cell signalling pathway that controls the specification of vulva cell fates in C. elegans are characterized. The lin-31 gene acts downstream of the ras homolog let-60 and encodes a member of the HNF-3/fork head family of DNA-binding transcription factors. lin-31 regulates how vulval precursor cells choose their fate and in lin-31 mutants, these cells do not properly choose which fate to express and therefore adopt any of the 3 possible vulval cell fates in a deregulated manner..RE: 68 ref.; SC: CA; PE; 0TSource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=0890-9369&isbn=&volume=7&issue=6&spage=933&pages=933-947&date=1993&title=Genes%20and%20Development&atitle=lin-31%2c%20a%20Caenorhabditis%20elegans%20HNF-3%2ffork%20head%20transcription%20factor%20homolog%2c%20specifies%20three%20alternative%20cell%20fates%20in%20vulva%20development.&aulast=Miller&pid=%3Cauthor%3EMiller%2c%20L%20M%3bGallegos%2c%20M%20E%3bMorisseau%2c%20B%20A%3bKim%2c%20S%20K%3C%2Fauthor%3E%3CAN%3E19932337278%3C%2FAN%3E%3CDT%3EJournal%20article%3C%2FDT%3
Obtaining Thickness-Limited Electrospray Deposition for 3D coating
No full textThe electrospray process utilizes the balance of electrostatic forces and surface tension within a charged spray to produce charged microdroplets with a narrow dispersion in size. In electrospray deposition, each droplet carries a small quantity of suspended material to a target substrate. Past electrospray deposition results fall into two major categories: (1) continuous spray of films onto conducting substrates and (2) spray of isolated droplets onto insulating substrates. A cross-over regime, or a self-limited spray, has only been limitedly observed in the spray of insulating materials onto conductive substrates. In such sprays, a limiting thickness emerges where the accumulation of charge repels further spray. In this study, we examined the parametric spray of several glassy polymers to both categorize past electrospray deposition results and uncover the critical parameters for thickness-limited sprays. The key parameters for determining the limiting thickness were (1) field strength and (2) the spray temperature, related to (1) the necessary repulsive field and (2) the ability for the deposited materials to swell in the carrier solvent vapor and redistribute charge. These control mechanisms can be applied to the uniform or controllably varied microscale coating of complex 3D objects.Peer reviewe
"Third Generation"-Type Functional Tris(2-pyridyl)borate Ligands and their Transition-Metal Complexes
No full textPhenyltris(2-pyridyl)borates (Tpyb) are a promising class of tripodal “scorpionate”-type ligands with potential utility in the development of transition metal complexes with interesting optical, electronic or magnetic properties, and as building blocks to metallosupramolecular polymers. We report here a new class of “third generation”-type Tpyb ligands that contain different functional groups attached to the boron-bound aryl moiety. The synthesis, characterization and metal ion complexation behavior of ligands with iodo and trimethylsilyl groups is discussed. The electrochemical and absorption characteristics of the corresponding low-spin Fe(II) and Ru(II) complexes are compared. We demonstrate the further elaboration of the iodo derivatives with alkynes via Sonogashira-Hagihara coupling, a process that proceeds with high yield for the Fe(II) and Ru(II) complexes, but not for the free ligand. The borylation of the silyl-substituted Ru(II) complex with BBr3 was also investigated. In addition to the expected borylation product, Ru(Tpyb-Bpin)2, the replacement of one (major product) or two phenyl groups is observed, suggesting that electrophilic borylation occurs at both the C(Ph)-Si and the C(Ph)-B aromatic carbons. The successful attachment of a range of different functional groups at the periphery of the Tpyb metal complexes is expected to provide opportunities to access new polymeric materials via C-C coupling or click-type reactions.Peer reviewe
[[alternative]]Attachment Styles, Conflict-Coping Strategies and Marital Satisfaction in Married Couples
No full text[[abstract]]Attachment Styles, Conflict-Coping Strategies and Marital
Satisfaction in Married Couples
Chia-Ling Lin
Abstract
The purpose of this study was to examine the relationships among spouses' attachment styles, conflict-coping strategies, and marital satisfaction. The sample was composed of 299 married couples living in the northern parts of Taiwan and having primary school-age children. Instruments used in this study were ”Experiences in Close Relationship Inventory”, “The Marital Coping Inventory”, and “Marital Satisfaction Inventory”. Data obtained were analyzed by contingency coefficient, One-way MANOVA, ANOVA and Canonical correlation. The major findings were as follows:
1. The relationship between spouse’s attachment styles
The result of contingency coefficient analysis revealed that husbands’ attachment style was significantly associated with wives’ attachment style. Secure participants tended to pair with secure partners and vice versa . The same was applicable to the preoccupied, fearful, as well as dismissing attachments. Among all types of pairing, the pairs of secure husbands and secure wives were most common, claiming a leading percentage of 17.4%.
2. Differences between husbands and wives regarding their
conflict-coping strategy and marital satisfaction
Data analysis indicated significant sex differences for conflict-coping strategy. The differences were evident in forms of conflict, introspective self-blame, positive approach, self-interest and seeking social support. Simply put, husbands reported greater use of positive approach and self-interest than did wives. Moreover, wives reported greater use of conflict, introspective self-blame, and seeking social support than did husbands.
As for marital satisfaction, husbands tended to be more satisfied than their wives for psychological aspects of marriage.
3. Difference among attachment styles regarding the conflict-
coping strategies and marital satisfaction
Results of the one-way MANOVA revealed that husbands and wives with different attachment styles were significantly different on conflict-coping strategies. Major differences lied in conflict, introspective self-blame, positive approach and avoidance. And there were differences on self-interest and seeking social support by husband with different attachment styles.
Results of the one-way MANOVA revealed that husbands and wives with different attachment styles were significantly different on marital satisfaction. Primary variations were of physical, economic, psychological, social, and philosophical aspects of marriage.
4. Differences among attachment styles pairing couples on the
conflict-coping strategies and marital satisfaction
Results of the one-way MANOVA revealed that husbands and wives paired with different attachment styles were significantly different on conflict-coping strategies. Major differences range from conflict, introspective self-blame, positive approach and avoidance.
Results of the one-way MANOVA revealed that husbands and wives paired with different attachment styles were significantly different on marital satisfaction. Primary variations were of physical, economic, psychological, social, and philosophical aspects of marriage.
5. The Relationships between conflict-coping strategy and
marital satisfaction
There are three canonical roots for husbands:
a. Husbands using more conflict, introspective self-blame and
avoidance, less positive approach, enjoy less satisfaction
in their physical, economic, social, psychological, and
philosophical aspects of marriage.
b. Husbands using more conflict, introspective self-blame,
positive approach, and seeking social support enjoy less
satisfaction in their social aspects of marriage.
c. Husbands involving themselves more in conflicts and social
supports and less in avoidance tend to get less physical satisfaction with their spouses.
There are two canonical roots for wives:
a. Wives using more conflict, introspective self-blame and
avoidance, less positive approach, enjoy less satisfaction
in their physical, economic, social, psychological,and
philosophical aspects of marriage.
b. Wives using methods like conflict, introspective self-blame,
and positive approach enjoy less satisfaction in both
economic and social aspects of the marriages.
Lastly, based on the above results, relevant implications were discussed and suggestions for the counseling services as well as future research were presented.
A Connectionist and Multivariate Approach to Science Maps: Som, Clustering and Mds Applied to Library & Information Science Research.
Full text linkThe visualization of scientific field structures is a classic of scientometric studies. This paper presents a domain analysis of the library and information science discipline based on author co-citation analysis (ACA) and journal cocitation analysis (JCA). The techniques used for map construction are the self-organizing map (SOM) neural
algorithm, Ward’s clustering method and multidimensional
scaling (MDS). The results of this study are compared with
similar research developed by Howard White and Katherine
McCain [1]. The methodologies used allow us to confirm that
the subject domains identified in this paper are, as well,
present in our study for the corresponding period. The appearance of studies pertaining to library science reveals
the relationship of this realm with information science.
Especially significant is the presence of the management on the journal maps. From a methodological standpoint, meanwhile, we would agree with those authors who consider
MDS, the SOM and clustering as complementary methods
that provide representations of the same reality from different analytical points of view. Even so, the MDS representation is the one offering greater possibilities for the structural representation of the clusters in a set of variables
- …
