A novel approach to rapid detection of acute water toxicity and its policy implications for grassroots sustainable environmental monitoring

2012 ◽  
Vol 14 (4) ◽  
pp. 1196 ◽  
Author(s):  
Jie Liu ◽  
Lee Liu ◽  
Li Yu ◽  
Guoqiang Yang ◽  
Xia Wang
2013 ◽  
Vol 737 ◽  
pp. 176-182 ◽  
Author(s):  
Ratno Nuryadi ◽  
Arko Djajadi ◽  
Reyhan Adiel ◽  
Lia Aprilia ◽  
Nuning Aisah

Microcantilever-based sensors have attracted interest in the last decade because of their small size, rapid detection and high sensitivity. This sensor can be applied in the many fields, i.e. physics, chemistry, biology, biochemistry, medical, and environment. In this paper, we describe microcantilever-based sensor for environmental monitoring, especially for a humidity detection. This sensor was operated in dynamic mode where a change in mass or spring constant of the microcantilever provides the resonance frequency change. Here, a change of humidity is detected by the resonance frequency and the amplitude changes. It is found that the increase in the humidity causes the decreasing the resonance frequency but increasing the amplitude. This result opens up the possibility of the humidity detection using microcantilever-based sensor.


2015 ◽  
Vol 23 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Axèle Giroud ◽  
Hafiz Mirza

Purpose – The purpose of this paper is to show how the nature of the activities conducted by multinational enterprises globally and the governance modes are changing. Essentially, multinational enterprises (MNEs) structure and organize their activities in a more complex, fragmented and geographically dispersed manner. In this paper, the authors suggest that the evolution of MNEs and the rising importance of global value chains (GVCs) require a refinement of FDI motivations rather than a drastic change in the existing categories. The authors begin with a historical overview of evolving firms’ international strategies and FDI motivations, before developing arguments to support the view that the fine slicing of economic activities on a global scale, and the combination of governance modalities ought to be integrated into the presentation of investment motivations. The discussion ends with implications for governments and policymaking. Design/methodology/approach – This paper is a conceptual paper. Findings – Key suggestions to refine the presentation of investment motivations are presented, together with policy recommendations. Originality/value – This paper provides a novel approach to ways of refining investment motivations by integrating GVC considerations, and drawing policy implications from this process.


Biosensors ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 58
Author(s):  
Athmar A. Ali ◽  
Ammar B. Altemimi ◽  
Nawfal Alhelfi ◽  
Salam A. Ibrahim

The use of biosensors is considered a novel approach for the rapid detection of foodborne pathogens in food products. Biosensors, which can convert biological, chemical, or biochemical signals into measurable electrical signals, are systems containing a biological detection material combined with a chemical or physical transducer. The objective of this review was to present the effectiveness of various forms of sensing technologies for the detection of foodborne pathogens in food products, as well as the criteria for industrial use of this technology. In this article, the principle components and requirements for an ideal biosensor, types, and their applications in the food industry are summarized. This review also focuses in detail on the application of the most widely used biosensor types in food safety.


2015 ◽  
Vol 67 ◽  
pp. 634-641 ◽  
Author(s):  
R. Soleri ◽  
H. Demey ◽  
S.A. Tria ◽  
A. Guiseppi-Elie ◽  
A. IBN Had Hassine ◽  
...  

2014 ◽  
Vol 6 (10) ◽  
pp. 3322-3328 ◽  
Author(s):  
Kaveh Amini ◽  
Nora W. C. Chan ◽  
Heinz-Bernhard Kraatz

The rapid detection of viruses is crucial for medical diagnosis, environmental monitoring, public health, and homeland security.


2014 ◽  
Vol 875-877 ◽  
pp. 749-754
Author(s):  
Asuka Kikuchi ◽  
Takashi Kadono ◽  
Kazuhiro Hashimoto ◽  
Kazuya Uezu ◽  
Tomonori Kawano

Recently, a novel approach to a highly sensitive and quantitative detection of rare earth element (REE) ions including La3+, Eu3+ and Tb3+, by the polymerase chain reaction (PCR) technique, has been reported. The detection of REE ions is based on the catalytic nature of REE ions targeting the deoxyribonucleic acid (DNA), thus monitoring of the ions can be achieved by reading the level of intact DNA by PCR. Despite of its high sensitivity (at ppb to ppt levels), the conventional PCR-based REE detection protocol requires certain length of time (1-2 hours). In the present study, we modified the PCR-based REE detection protocols by employing the high-speed PCR, and performed the automated and rapid detection of La3+ in small-sized aqueous samples within 5min.


2020 ◽  
Vol 26 (4) ◽  
pp. 592-606

Until now, studies of the relationship between migration and participation in undeclared work have adopted as their unit of analysis the activity of specific migrant groups in their host country. In this paper, a novel approach is pursued by adopting a different unit of analysis. To examine the relationship between migration and participation in undeclared work, the activity of the domestic population in their home country is analysed according to their previous migration activity. To do so, data is reported from a 2015 survey of 6,021 randomly selected respondents aged between 16 and 65 years old in Bosnia and Herzegovina. The finding is that undeclared work is the sole source of earnings for 21% of the total labour force, but for 26% of those who have spent more than three months abroad, 18% of internal migrants and 22% of those who have not migrated either internally or abroad. After controlling for other determinants of undeclared work, a Probit regression analysis finds a significant 8% higher probability of participation in undeclared work for those who have spent time out of the country compared with the non-migrant population. The theoretical and policy implications are then discussed.


2019 ◽  
Vol 129 ◽  
pp. 224-230 ◽  
Author(s):  
Aaydha C. Vinayaka ◽  
Tien A. Ngo ◽  
Krishna Kant ◽  
Pia Engelsmann ◽  
Vivek P. Dave ◽  
...  

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