19 research outputs found
Public diplomacy in a networked society: The Chinese government–NGO coalition network on acquired immune deficiency syndrome prevention
In the era of globalization, the line between domestic and international communication is becoming increasingly blurred. Public diplomacy communication is one such case. Public diplomacy has evolved from a focus on mass media to communication efforts to build transnational communication networks of relationships with respected international non-governmental organizations. This article explores how the Chinese government communicated with and collaborated with transnational human immunodeficiency virus/acquired immune deficiency syndrome international non-governmental organizations. The findings of a network analysis of Chinese-international non-governmental organizations public diplomacy suggest that the Chinese government is strategically communicating with international organizations to help address a domestic issue. Additionally, the findings of a content analysis of international media coverage of China’s management of the human immunodeficiency virus/acquired immune deficiency syndrome issue suggest that more positive frames are occurring in the news. China is now viewed as making progress in its handling of the health crisis.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline
A Modified Laboratory Approach to Determine Reaeration Rate for River Water
It 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
On the Entity and Antiquity of the Aurignacian at Willendorf (Austria): Implications for Modern Human Emergence in Europe
International audienc
Out of the Cave and into the Light: Perspectives and Challenges of Radiocarbon Dating an Open-Air Aurignacian Site (RĂ©gismont-le-Haut, Mediterranean France)
International audienceThis article presents the methods and results regarding the radiocarbon (AMS) dating of the site of RĂ©gismont-le-Haut. This site is one of the very few well-preserved Aurignacian open-air sites in southern France. It is also one of the only Aurignacian sites in France and Europe, more generally, to have conserved evident features, including many in situ fire-related structures. We selected charcoal and bone from all the major occupation sectors excavated so far, as well as from others which were important for understanding site formation. Considering difficulties faced when comparing the lithic industry of a site located in a poorly documented area with those belonging to the Aquitaine basin, where the "classical" definition of the Aurignacian was outlined, dating was conducted to accurately place the site within this technocomplex's internal chronology. In total, 19 charcoals (identified to Pinus sp. or gymnosperm) and 3 bones were submitted for AMS radiocarbon dating, each to one of three laboratories. We implemented a strict charcoal screening protocol for radiometric dating that required genus-identified individual charcoals that were well-associated with the fire-related structures. Despite this careful selection , most of the charcoals and all of the bones contained insufficient carbon for dating. Of the 19 charcoal dates attempted, 5 produced dates, from two loci. All fall in the span between the Middle Aurignacian and the Recent Aurignacian (between around 32,500 and 28,000 uncalibrated 14 C BP). An older subset of the dates (32.5-32 ka BP, ca. 37.5-35.5 ka cal BP) appears to be the most reliable. These results represent the first AMS dates ever performed on an Aurignacian open-air site in the Mediterranean area. The dates are compared to other recently dated southwestern France sites to establish which ones might be useful for future detailed archaeological comparisons. They are also instructive from a methodological point of view, in order to better appreciate the resolution of radiocarbon in this context. The focus of this article is on presenting the dating work, especially the protocol used in the selection of samples, the laboratory methods used for obtaining the dates and the challenges faced at this site. Among these, the divergence of dates between loci contrasted with geomorphological and archaeological evidence, with the latter two strongly pointing to one living floor, and either a single occupation or a few very close in time. This forced a reassessment of the chronological dating evidence. This article serves to show the importance of multi-prong approaches to archaeological dating, comparing and contrasting both contextual evidence and actual dates
Threading the weft, testing the warp: population concepts and the European Upper Paleolithic chronocultural framework
Interpretations of the European Upper Paleolithic archaeological record have long relied on concepts of past populations. In particular, cultural taxonomic units-which are used as a framework for describing the archaeological record-are commonly equated with past populations. However, our cultural taxonomy is highly historically contingent, and does not necessarily accurately reflect variation in the archaeological record. Furthermore, we lack a secure theoretical basis for the inference of populations from taxonomic units. In order to move past these problems and satisfactorily address questions of Upper Paleolithic populations, we need to entirely revise our approach to chronocultural framework building.Here, I outline a specific way of describing the archaeological record that deliberately avoids the use of cultural taxonomic units and instead concentrates on individual features of material culture. This approach may provide a more appropriate basis for the archaeological study of Upper Paleolithic populations and for comparison with genetic data