1,721,309 research outputs found
Supplimentary_Tables – Supplemental material for Inequalities in Utilization of Maternal Reproductive Health Care Services in Urban Bangladesh: A Population-Based Study
No full textSupplemental material, Supplimentary_Tables for Inequalities in Utilization of Maternal Reproductive Health Care Services in Urban Bangladesh: A Population-Based Study by Md. Nuruzzaman Khan, Pushpendra Kumar, Md. Mijanur Rahman, Md. Nazrul Islam Mondal and M. Mofizul Islam in SAGE Open</p
A modified laboratory approach to determine reaeration rate for river water
Get PDFIt is reported that reaeration rates determined
from laboratory investigation may not suit well in predicting
reaeration rate of natural streams. Sampling method during
reaeration experiment is a potential source of error in
laboratory estimation of reaeration rate coefficient for river
waters, which has been addressed in this research. A modified
method based on sampling procedure in a flume was
adopted to develop a reaeration rate equation for Pusu River
in Malaysia,which is demographically a very important river.
An important feature including several culverts along the
course of the river was also considered to model dissolved
oxygen (DO) concentration.DOwas calibrated and validated
using water quality analysis simulation program (WASP)
considering appropriate kinetic rate coefficients for Pusu
River. Performance of the new reaeration rate equation and
other process equations in the calibration and validation data
was assessed in terms of root-mean-square error (RMSE),
mean error between observed and predicted data and R2
value. Study results revealed that the equation developed in
B Abdullah Al-Mamun
[email protected]
Md Nuruzzaman
[email protected]
http://waterzaman.weebly.com/
Md Noor Bin Salleh
[email protected]
1 Department of Civil Engineering, Rangpur Engineering
College, Rangpur 5403, Bangladesh
2 Department of Civil Engineering, Kulliyyah of Engineering,
International Islamic University Malaysia (IIUM), 53100
Kuala Lumpur, Malaysia
3 Bioenvironmental Engineering Research Center (BERC),
Kulliyyah of Engineering, International Islamic University
Malaysia (IIUM), 53100 Kuala Lumpur, Malaysia
this research considering the impact of culverts on reaeration
rate predicted DO in Pusu River with improved accuracy as
compared to the other equations. RMSEs were found to be
0.083 and 0.067 mg/L for calibration and validation data,
respectively. Mean errors of observed and model-predicted
data were 0.06 and 0.05 mg/L for calibration and validation,respectively. The R2 value was 0.99 in both cases. The study results facilitate accuracy in future studies on DO of Pusu River
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
A brief account of river rehabilitation experiences
No full textRivers are vital water resources which are being altered due to urbanization
and industrialization, causing threats to the environment. As a result, rehabilitation of
polluted rivers has gained great importance during the last century in many countries of
the world. Literature on river rehabilitation projects has been reviewed in this paper,
highlighting the experiences gathered in the developed nations of the worldsuch as the
USA, the UK, Japan, etc. Rehabilitation issues of the rivers crossing borders have also
been discussed in this paper. Key lessons from different experiences in different regions
have been extracted and a comparison has been made. Summarised statistics on different
experiences also have been presented. Finally, some guidelines have been provided based
on various experiences, which should be helpful for developed and developing nations
while making their river rehabilitation efforts
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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
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
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