scholarly journals Searching Nanoplastics: From Sampling to Sample Processing

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3658
Author(s):  
Marina Cerasa ◽  
Simona Teodori ◽  
Loris Pietrelli
Keyword(s):  
Analytical Method ◽  
Single Step ◽  
Qualitative And Quantitative Analysis ◽  
Environmental Matrices ◽  
Sample Processing ◽  
Qualitative And Quantitative ◽  
New Class ◽  
Physico Chemical ◽  
Over Time

Nanoplastics (NPs) are considered emerging pollutants, namely unregulated contaminants whose toxic effect on humans and the environment has been demonstrated or suspected. They are the result of the physical fragmentation of the plastics that over time reach smaller dimensions (<100 nm). The issues related to the characterization and quantification of NPs in the environmental matrices are mainly related to the infinitesimal size, to the fact that they are found in bulk, and to the different physico-chemical forms in which the same polymer can evolve over time by degradation. To deal with the study of a new class of pollutants it is necessary to assess the entire analytical method, carefully considering every single step (sampling, cleanup, qualitative, and quantitative analysis) starting from the validation method in the laboratory. This paper reviews the analytical method steps, focusing on the first ones, which the current literature often underestimates: laboratory tests, sampling, and sample processing; in fact, most errors and the quality of the analyses often depend on them. In addition, all newly introduced sample processing methods were examined.

scholarly journals Underwater Image Restoration via Non-Convex Non-Smooth Variation and Thermal Exchange Optimization

2021 ◽  
Vol 9 (6) ◽  
pp. 570
Author(s):  
Qingliang Jiao ◽  
Ming Liu ◽  
Pengyu Li ◽  
Liquan Dong ◽  
Mei Hui ◽  
...  
Keyword(s):  
Image Restoration ◽  
Qualitative And Quantitative Analysis ◽  
Formation Model ◽  
High Quality ◽  
Thermal Exchange ◽  
Qualitative And Quantitative ◽  
Smooth Variation ◽  
Underwater Image ◽  
Dark Channel

The quality of underwater images is an important problem for resource detection. However, the light scattering and plankton in water can impact the quality of underwater images. In this paper, a novel underwater image restoration based on non-convex, non-smooth variation and thermal exchange optimization is proposed. Firstly, the underwater dark channel prior is used to estimate the rough transmission map. Secondly, the rough transmission map is refined by the proposed adaptive non-convex non-smooth variation. Then, Thermal Exchange Optimization is applied to compensate for the red channel of underwater images. Finally, the restored image can be estimated via the image formation model. The results show that the proposed algorithm can output high-quality images, according to qualitative and quantitative analysis.

scholarly journals International Real Estate Review

2006 ◽  
Vol 9 (1) ◽  
pp. 153-166
Author(s):  
Kiran Kumar Naidu ◽  
◽  
Chris Heywood ◽  
Richard Reed ◽  
◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Real Estate ◽  
Human Resources ◽  
Business Processes ◽  
Qualitative And Quantitative Analysis ◽  
Business Process Outsourcing ◽  
Qualitative And Quantitative ◽  
Corporate Real Estate ◽  
Analyze Data

Business process outsourcing (BPO) is transforming Western companies’ corporate real estate (CRE) requirements. When business processes move to a developing country there are consequences for that country’s CRE practice. This paper considers the effects of western BPO on Indian CRE. Qualitative and quantitative analysis was used to analyze data from a survey of professionals operating in Indian CRE. Location issues, quality of workspace, and the availability of human resources were identified as important in establishing BPO activities in India. Suburban, and campus or built-to-suit facilities, were increasingly preferred locations and styles of workplace that were transforming Indian CRE practice. Also, the effect of western BPO was impacting on the types of CRE services being offered. With the continuing growth in BPO to ‘secondary cities’ the transformational effects on local CRE practice are likely to spread and further transform CRE practice in India.

scholarly journals Simultaneous Detection of Drug-Induced Liver Injury Protein and microRNA Biomarkers Using Dynamic Chemical Labelling on a Luminex MAGPIX System

Analytica ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 130-139
Author(s):  
Antonio Marín-Romero ◽  
Mavys Tabraue-Chávez ◽  
Bárbara López-Longarela ◽  
Mario A. Fara ◽  
Rosario M. Sánchez-Martín ◽  
...  
Keyword(s):  
Liver Injury ◽  
Simultaneous Detection ◽  
Single Step ◽  
Qualitative And Quantitative Analysis ◽  
Serum Samples ◽  
Drug Induced ◽  
Drug Induced Liver Injury ◽  
Qualitative And Quantitative ◽  
Post Marketing ◽  
Mechanistic Basis

Drug-induced liver injury (DILI) is a potentially fatal adverse event and a leading cause for pre- and post-marketing drug withdrawal. Several multinational DILI initiatives have now recommended a panel of protein and microRNA (miRNA) biomarkers that can detect early liver injury and inform about mechanistic basis. This manuscript describes the development of seqCOMBO, a unique combo-multiplexed assay which combines the dynamic chemical labelling approach and an antibody-dependant method on the Luminex MAGPIX system. SeqCOMBO enables a versatile multiplexing platform to perform qualitative and quantitative analysis of proteins and miRNAs in patient serum samples simultaneously. To the best of our knowledge, this is the first method to profile protein and miRNA biomarkers to diagnose DILI in a single-step assay.

scholarly journals InfoVAE: Balancing Learning and Inference in Variational Autoencoders

2019 ◽  
Vol 33 ◽  
pp. 5885-5892 ◽  
Author(s):  
Shengjia Zhao ◽  
Jiaming Song ◽  
Stefano Ermon
Keyword(s):  
Latent Variables ◽  
Performance Metrics ◽  
Generative Models ◽  
Qualitative And Quantitative ◽  
New Class ◽  
Latent Features ◽  
Quantitative Analyses ◽  
Effective Use

A key advance in learning generative models is the use of amortized inference distributions that are jointly trained with the models. We find that existing training objectives for variational autoencoders can lead to inaccurate amortized inference distributions and, in some cases, improving the objective provably degrades the inference quality. In addition, it has been observed that variational autoencoders tend to ignore the latent variables when combined with a decoding distribution that is too flexible. We again identify the cause in existing training criteria and propose a new class of objectives (Info-VAE) that mitigate these problems. We show that our model can significantly improve the quality of the variational posterior and can make effective use of the latent features regardless of the flexibility of the decoding distribution. Through extensive qualitative and quantitative analyses, we demonstrate that our models outperform competing approaches on multiple performance metrics

scholarly journals Lip Synchrony of Rounded and Protruded Vowels and Diphthongs in the Lithuanian-Dubbed Animated Film “Cloudy with a Chance of Meatballs 2”

2020 ◽  
pp. 214-229
Author(s):  
Indrė Koverienė ◽  
Kristina Čeidaitė
Keyword(s):  
Quantitative Analysis ◽  
Comparative Method ◽  
Target Language ◽  
Audiovisual Material ◽  
Qualitative And Quantitative Analysis ◽  
Feature Film ◽  
Qualitative And Quantitative ◽  
Animated Film ◽  
Research Findings

In this article, the problems of dubbing, especially related to lip synchrony as one of the most challenging aspects of audiovisual translation, are scrutinised. Contrarily to the traditional focus on bilabials and open vowels, the object of this research is lip synchrony of both rounded and protruded vowels and diphthongs since lip rounding is a visibly marked feature, which cannot be neglected especially in close-ups. The study aims at determining the inaccuracies in lip synchrony of the mentioned phonemic group in the dubbed animated feature film Cloudy with a Chance of Meatballs 2 from English to Lithuanian. Qualitative and quantitative analysis is carried out by employing a comparative method. The research methodology is based on the theoretical insights and assumptions provided by Frederic Chaume (2004, 2006, 2012), Richard Barsam & Dave Monahan (2010), and Indrė Koverienė (2015). The research findings demonstrate the main issues of lip synchrony a translator might face while adapting a piece of audiovisual material for the target language audience. Also, it provides insights into the quality of the overall translation of the chosen film.

DEVELOPING TEACHING MATERIALS IN INTEGRATED NATURAL SCIENCE CLASS BASED ON INQUIRY LABS TO IMPROVE STUDENTS’ SCIENCE LITERACY

2021 ◽  
Vol 28 (1) ◽  
pp. 124
Author(s):  
Yusmanila Yusmanila
Keyword(s):  
Scientific Literacy ◽  
Statistical Tests ◽  
Test Results ◽  
Qualitative And Quantitative Analysis ◽  
Teaching Materials ◽  
Integrated Science ◽  
Qualitative And Quantitative ◽  
Average Value ◽  
Analysis Technique

The low scientific literacy of Indonesian students indicates the low quality of science/science education. Reality on the ground in the science learning process is that teachers only use textbooks and have not developed inquiry labs-based teaching materials. The research objective is to develop an integrated science teaching material based on inquiry labs that is valid, practical, and effective. The type of research is research and development (r&amp;d). The test was conducted in class VIIB of MTsN 6 Sijunjung. The instruments used are expert validation sheets and student questionnaires. The data analysis technique used in this research is qualitative and quantitative analysis. The results of the validation of teaching materials have an average value of 89, meaning are very valid. The average practicality test results for teaching materials are 84, meaning are very practical. The results of statistical tests on students' scientific literacy tests were effective in increasing students' scientific literation

scholarly journals Polyphenol Fingerprinting Approaches in Wine Traceability and Authenticity: Assessment and Implications of Red Wines

Beverages ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 75 ◽  
Author(s):  
Laurentiu Palade ◽  
Mona Popa
Keyword(s):  
Liquid Chromatography ◽  
Nutritional Quality ◽  
Red Wine ◽  
Red Wines ◽  
Qualitative And Quantitative Analysis ◽  
High Importance ◽  
Qualitative And Quantitative ◽  
Authenticity Assessment ◽  
And Storage

Like any other food/feed matrix, regardless of the employed analytical method, wine requires authentication strategies; a suitable qualitative and quantitative analysis represents the fingerprint which defines its identity. Until recently, fingerprinting approaches using liquid chromatography applications have been regarded as an effective tool for the assessment of wines employing polyphenol profiles. These profiles are of considerable importance for grapes and wines as they influence greatly the color, sensory, and nutritional quality of the final product. The authenticity and typicity characters are fundamental characteristics, which may be evaluated by the use of polyphenol fingerprinting techniques. Under these conditions, the evolution of polyphenols during the red wine elaboration and maturation processes shows a high importance at the level of the obtained fingerprints. Moreover, the environment factors (vintage, the area of origin, and variety) and the technological conditions significantly influence wine authenticity through the use of polyphenol profiles. Taking into account the complexity of the matter at hand, this review outlines the latest trends in the polyphenol fingerprinting of red wines in association with the transformations that occur during winemaking and storage.

scholarly journals Upaya Pemberdayaan Petani Kelapa (Cocos Nucifera) di Desa Pesaban, Kecamatan Rendang, Kabupaten Karangasem

2018 ◽  
pp. 444
Author(s):  
NI KOMANG TRI ASTRINI ◽  
I MADE SARJANA ◽  
I GEDE SETIAWAN ADI PUTRA
Keyword(s):  
Quantitative Analysis ◽  
Problem Solving ◽  
Natural Resources ◽  
Cocos Nucifera ◽  
Financial Resources ◽  
Access To Information ◽  
Qualitative And Quantitative Analysis ◽  
Qualitative And Quantitative ◽  
The Village

Coconut Farmers Empowerment Effort (Cocos Nucifera) in the Village of Pesaban,Sub-District of Rendang, Regency of Karangasem. Pesaban Village, Rendang Sub-District of Karangasem Regency has great coconutpotential, but farmers can’t utilize the condition properly. The purpose of this researchis to investigate: (1) coconut farming potential, (2) aspect and effort of empowering thecoconut farmers. The research uses qualitative and quantitative analysis methods. Theresults showed that the potential of natural resources of coconut farming, humanresources, and financial resources are good. Ownership of assets is good and belongs tothe farmers themselves, relationships between individuals and groups are wellestablished, coconut farmers have organizations to cooperate, and the partnershipsynergy of coconut farmers with the local and outside traders. Access to information isvery less, the participation of the group has been well built, coconut farmers have asense of responsibility in maintaining the good quality of the product, group forumshave not fully be a problem-solving.

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