1,721,022 research outputs found
Peer Reputation Configurations and Associations with Friendship Adjustment
No full textPeer reputation (PR) refers to how peer groups collectively view an individual in terms of socio-behavioral characteristics, such as aggression, social withdrawal, leadership, and prosociality. Despite considerable research on PR, few studies have considered PRs in relation to indices of friendship, particularly with a person-centered approach. The goal of the current study was to adopt such an approach and identify peer reputation configurations and their defining characteristics, and to examine how such configurations are linked to friendship prevalence and quality. Four hundred and twenty-six Italian seventh-grade students (57.3% male, M-age = 12.07) completed peer nomination measures of PR and reported on their friendships. Their mutual best friends were subsequently determined, and a friendship quality measure was completed. Teachers rated participants' problem behaviors and competencies. Cluster analytic methods produced four PR configurations that were defined by the following characteristics: (1) Shy/Excluded/Victimized, (2) Normative, (3) Aggressive/Arrogant, and (4) Prosocial/Popular. Teacher ratings supported these configurations such that Prosocial/Popular students were rated the lowest in problem behaviors and Shy/Excluded/Victimized and Aggressive/Arrogant were the highest in learning problems. Additional analyses showed numerous linkages between the configurations and friendship. For instance, Prosocial/Popular students were more likely to have mutual and satisfying friendships relative to students in the other groups. These findings provide new insights into the complex linkages between group- and dyadic-level peer experiences during early adolescence and may inform prevention and intervention efforts aimed at Shy/Excluded/Victimized youth struggling with peers
A Revised Short Form of the Extended Class Play Among Italian Early Adolescents
Full text linkAmong the measures assessing peer reputation, the Extended Class Play (ECP) is now used extensively in North American settings. Little information is available in other cultural contexts. Furthermore, practical considerations suggest developing a shorter form of the ECP to be used in socio-educational environments. This study examined the ECP dimensions of peer assessment in Italy as well as developed a shorter form of the measure. We revised the ECP using factor analyses according to an explorative-confirmatory approach. The original 37-item ECP was shortened to a 22-item version and, subsequently, the properties of the revised measure were evaluated. We performed two studies comprising, respectively, 643 (55% male; 97% Italian; Mage = 12.20, SD = 0.60) and 652 (58% male; 94% Italian; Mage = 12.26, SD = 0.66) seventh-grade young adolescents living in southern and central Italy. Results revealed a clear and consistent seven-factor structure and acceptable levels of reliability and validity. Factors included constructs such as Shyness-Withdrawal, Prosociality-Leadership, Aggression, Popularity-Sociability, Victimization, Rejection-Exclusion, and Boastfulness. Correlations between the dimensions of the 22-item ECP and teacher ratings of young adolescents’ behaviors further confirmed the validity of the solution. Findings suggest the importance of culturally revised measures of social reputation and indicate that the short form of the ECP has considerable promise to be considered a valuable measure to assess the multidimensional aspects of peer relationships
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Biogeochemical Alteration Effects on U-Th Dating of Pleistocene Corals
Full text linkU-Th geochronology has been used to determine ages of fossilized coral specimens during the late Pleistocene deglaciation. This dating technique allows for a more precise determination of specific relative sea level (RSL) events, such as meltwater pulses. Meltwater Pulse 1a (MWP-1a) has been studied at far-field RSL sites around the globe. This study focuses on a well-preserved fossil coral record from Penguin Bank, a submerged platform off the southwestern coast of Moloka‘i in the Hawaiian Islands. Unpublished Th-U data by Rubin and Fletcher (2012) show that there was a 21±3 mm/yr relative sea level change over the course of the deglaciation at Penguin Bank, off the southwestern coast of Moloka‘i, from 17 to 14.8 ka. This study has provided a more robust determination of RSL and dating fossilized coral reefs at Penguin Bank during one interval of the deglaciation centered around Meltwater Pulse 1a (defined below). The shallow portions of Penguin Bank are currently a thriving mesophotic coral ecosystem with a large coralline algae and deep sea coral population. This study analyzes the effect of these organisms on the geochemistry of fossilized coral specimens. The specimens were observed under an optical microscope and electron microprobe. Three separate textures were found: pristine primary aragonite, secondary aragonite cement, and secondary calcite cement. The abundance of secondary cements increased in areas of alterations. U-Th dates were calculated for specimens with different types of alteration, such as sponge, coralline algae, bioerosion, and discoloration. The compositional difference in pristine sections and altered sections of each coral was measured. Crustose coralline algae, sponges, and bioerosion all have varying effects on precision of calculated ages. Discoloration did not affect the calculated ages in our samples. More data is needed to fully determine the mechanisms causing these changes. The data collected in this study are in agreement with previously dated corals from Penguin Bank. There is a relationship with sea level change and coral growth and depth, until the onset of MWP-1a, where the corals continue to grow in deeper water instead of keeping up with rising seas. This data will be used in the future to refine the timing of MWP-1a at Penguin Bank and around the globe.M.S. Thesis. University of Hawaiʻi at Mānoa 2018
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
