1,723,774 research outputs found
A mineralogical study of the Lin Ma Hang Pb-Zn deposit, NE Hong Kong
No full textLin Ma Hang Mine is located at the border of the New Territories and mainland China. It was a closed area for the past decades and was opened to general public since 2012. Lin Ma Hang Mine has 6 levels in total, this project was focused on level 6 , as other levels are already collapsed or in very dangerous condition.
Literature review, rock examination and microscopic study are the three main tasks I have to do for the study. Literature review is mainly based on these two literatures: “Geology of the Lin Ma Hang Lead Mine, New Territories, Hong Kong” by Davis and Snelgrove, and “The geology of the Lin Ma Hang Lead Mine, New Territories, Hong Kong” from Newsletter Vol 9 No.4 of Geological Society of Hong Kong. Both literatures were focused on the geological settings, history and the structure of the mine. It also mentioned briefly the minerals in the mining site, it includes pyrite, galena, sphalerite and chalcopyrite. Main production of the mine were lead and zinc. Others minerals including copper, iron, and more interestingly, silver and gold were also reported.
After site visiting to Lin Ma Hang Mine for understanding the local geology of the mine, microscopic study had been performed by using the rock samples from professor Zhou Mei-Fu’s research team.
For the microscopic study, 26 thin sections were studied physically and chemically. Three equipment were involved in the study: optical microscope and Scanning Electronic Microscope (SEM) were used for physical analysis, to find out if there is any sequence of the mineral deposition. Electro-Microprobe (EPMA) was used for chemical analysis, to see if there is any other elements found in the minerals, such as gold and silver. The findings from the geological study and the microscopic study are going to be discussed and illustrated in this paper.published_or_final_versionApplied GeosciencesMasterMaster of Scienc
Gut microbiota affects host fitness of fall armyworm feeding on different food types. Lin Ma et al.
No full textThe file contains raw data from two-sex life tables, pupa weights and nutrient utilization measurements
Replication data for "Lumpy Investment, Lumpy Inventories"
No full textThe codes to replicate the results in "Lumpy Investment, Lumpy Inventories", by Rudiger Bachmann and Lin Ma published in Journal of Money, Credit and Banking in 2016. </div
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
sj-docx-1-ltr-10.1177_13621688231186857 – Supplemental material for Examining the perceptions and self-reported practices of L2 teachers in China regarding oral fluency: A conceptual replication and extension
No full textSupplemental material, sj-docx-1-ltr-10.1177_13621688231186857 for Examining the perceptions and self-reported practices of L2 teachers in China regarding oral fluency: A conceptual replication and extension by Qiao Gan and Lin Ma in Language Teaching Research</p
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
- …
