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data quality; prices; statistical analysis; trade; Canada; China; France
Abstract:
... The UN Comtrade is one of the most widely used data sources for physical trade analysis. However, the issue of outliers would result in misleading interpretations and biased results, limiting its applications. Assuming that no deals would be made at unreasonable prices, we define an outlier as the data record whose unit price (trade value divided by net weight) is unusually high or low. To address ...
data quality; databases; international trade; statistics; trade statistics
Abstract:
... International trade has been considered a critical driving force of material flows and their environmental pressures, which has been a global research hotspot. The United Nations Commodity Trade Statistics Database (UN Comtrade) is the original and probably the most widely-used data source to support the physical trade analysis. However, data discrepancies have been discovered in UN Comtrade, whic ...
asymmetry; data quality; databases; trade; trade statistics; world markets; South Africa
Abstract:
... Trade contributes to the redistribution of resources among countries and regions. One of the most widely used data sources is the United Nations Commodity Trade Statistics Database (UN Comtrade). Nevertheless, data issues still limit its validity, trustworthiness, and use. A critical issue is the lack of commodity weight information. It relies heavily on data quality to determine the global market ...
Christina Cappello; Arun Kumar Pratihast; Alonso Pérez Ojeda del Arco; Johannes Reiche; Veronique De Sy; Martin Herold; Rolando Eduardo Vivanco Vicencio; Daniel Castillo Soto
automation; community service; conservation programs; data quality; deforestation; forest conservation; forests; land use; national forests; reducing emissions from deforestation and forest degradation; satellites; Amazonia; Peru
Abstract:
... Community-based monitoring (CBM) is one of the- most sustainable ways of establishing a national forest monitoring system for successful Reduce Emissions from Deforestation and Forest Degradation (REDD+) implementation. In this research, we present the details of the National Forest Conservation Program (PNCB—Programa Nacional de Conservación de Bosques para la Mitigación del Cambio Climático), Pe ...
citizen participation; cost effectiveness; data quality; environmental stewardship; ornithology; wildlife
Abstract:
... Observations made by citizen-scientists are highly regarded in many fields of biology. Public participation in research leads to increased environmental stewardship, greater data-acquisition, and multi-disciplinary advances. However, to date, there is a paucity of literature that acknowledges the professional benefits we, as scientists, gain through open consultation and two-way collaboration with ...
data quality; geometry; latitude; statistical analysis; troposphere
Abstract:
... The orbital inclination angle of the GLONASS constellation is about 10° larger than that of GPS, Galileo, and BDS. Theoretically, the higher orbital inclination angle could provide better observation geometry in high latitude regions. A wealth of research has investigated the positioning accuracy of GLONASS and its impact on multi-GNSS, but rarely considered the contribution of the GLONASS constel ...
citizen science; cost effectiveness; data quality; governance
Abstract:
... The proliferation of Citizen Science initiatives has increased the expectations of practitioners who need data for design, analysis, management and research in environmental applications. Many Citizen Science experiences have reported tangible societal benefits related to improved governance of natural resources due to the involvement of citizens and communities. However, from the perspective of d ...
Mediterranean climate; air quality; carbon dioxide; data quality; environment; greenhouses; heat; infrastructure; inventories; pollution; quality control; spectroscopy; summer; time series analysis; traffic; troposphere; wind speed; winter; France
Abstract:
... Since 2014, a 100 m tall tower measures continuously greenhouse gases at the Observatoire de haute Provence (OHP) located in the southeast of France (43° 55′ 51″ N, 5° 42′ 48″ E) as a monitoring station of the French National Greenhouse Gases Observation network (ICOS-Fr). This rural station allows to study the short, mid, and long terms variability of atmospheric CO₂, CH₄ and CO concentrations at ...
DNA barcoding; cheeses; data quality; ecosystems; fungi; genes; microbial ecology; ready-to-eat foods; Quebec
Abstract:
... Environmental short amplicon sequencing, or metabarcoding, is commonly used to characterize the bacterial and fungal microbiota of cheese. Comparisons between different metabarcoding studies are complicated by the use of different gene markers. Here, we systematically compare different metabarcoding molecular targets using V3–V4 and V6–V8 regions of the bacterial 16S rDNA and fungal ITS1 and ITS2 ...
... COSMIC-2 is a remote sensing satellite mission that mainly provides scientific data for weather forecasting, ionosphere, and climate research. High precise orbit is the basis for the application of remote sensing satellite data. In order to realize the precise orbit determination (POD) of COSMIC-2, we have assessed the quality of space-borne GPS observation in detail, including the utilization of ...
automation; chemical species; data quality; gas chromatography; goats; labor; liquids; metabolites; muscles; pollution; polychlorinated biphenyls; sheep; tandem mass spectrometry; trade
Abstract:
... Analysis of chemical residues in foods is a big challenge for developing countries due to lack of financial and professional resources needed to meet international quality standards for trade. However, the implementation of simple multiclass, multi-residue methods in monitoring programs can provide significant benefits to save cost, time, and labor. The aim of this project was to investigate the “ ...
automation; data quality; exercise; filtration; microplastics; wastewater
Abstract:
... The need for improved microplastic (MP) data accuracy has been widely reported, but MP precision issues have been investigated less thoroughly. This work demonstrates how initial and continuing assessments of a laboratory's analytical precision can be used for establishing laboratory repeatability for MP analyses. These precision estimates can be reported along with MP results to ensure their qual ...
agriculture; data quality; electronics; forest inventory; mobile telephones; roundwood; scanners
Abstract:
... Several options are currently available for wood measurement and grading and the manual ones are still widely used in many countries. In the last decade, LiDAR-based methods have been successfully tested in several forestry-related applications, in particular in forest inventory applications, with the main focus on data accuracy. Their usefulness for the quantitative assessment of the harvested wo ...
automation; cloud cover; data quality; entropy; equipment; satellites
Abstract:
... The search for clouds in satellite images is a challenging subject which still attracts a lot of attention due to the amount and quality of data, which is growing at a tremendous pace, the development of satellite techniques and methods, inexpensive equipment, and automation of satellite imaging processes. This paper presents a new approach to the assessment of cloudiness based on the use of the t ...
ceramides; chelation; chemical species; chickens; chromatography; data quality; eggs; lysophospholipids; phosphates; phosphatidylserines; swine
Abstract:
... The use of hybrid surface technology (HST), applied to the metal surfaces of an ACQUITY™ UPLC™ system and column, designed to mitigate the chelation, poor peak shape and analyte loss seen with acidic phospholipids was investigated. Compared to a conventional system significant improvements in both sensitivity, recovery and peak shape were obtained following UPLC on a CSH C18 column when the HST wa ...
Matthew J. Eckelman; Matthew S. Moroney; Julie B. Zimmerman; Paul T. Anastas; Eva Thompson; Paul Scott; Maryann McKeever-Alfieri; Paul F. Cavanaugh; George Daher
bioaccumulation; computer simulation; data quality; dermal toxicity; environmental health; feedstocks; green chemistry; greenhouse gases; human health; ingredients
Abstract:
... Advances in green chemistry over the past 25 years have improved sustainability in the development of new cosmetic and personal care products. Product formulators benefit from an expanding palette of “greener” natural and synthetic ingredients but need clear guidance on how to choose among options to optimize formula sustainability while also evaluating for performance. As greener can have a varie ...
air quality; case studies; data quality; infrastructure; life cycle assessment; private ownership; quality of life; stakeholders; statistics; supply chain; Germany
Abstract:
... PURPOSE: The main purpose of this S-LCA case study is to analyse social impacts of the use phase of mobility services is a holistic way, taking into account positive as well as negative impacts. The use phase plays an important role for the assessment of services, which is why this study exclusively focuses on the use phase assessment. That way, this study aims to contribute to answer the question ...
David Sánchez‐Fernández; José Luis Yela; Raúl Acosta; Núria Bonada; Enrique García‐Barros; Cástor Guisande; Juergen Heine; Andrés Millán; Miguel L. Munguira; Helena Romo; Carmen Zamora‐Muñoz; Jorge M. Lobo
Trichoptera; biodiversity; data quality; feces; inventories; Iberian Peninsula
Abstract:
... Evaluating data quality and inventory completeness must be a preliminary step in any biodiversity research, particularly in the case of insects and high biodiversity areas. Yet, this step is often neglected or, at best, assessed only for one insect group, and the degree of congruence of sampling effort ffor different insect groups remains unexplored. We assess the congruence in the spatial distrib ...
birds; chemistry; data quality; developmental stages; diet; ecotoxicology; environmental assessment; food safety; mammals; pesticide application; pesticides; risk; variance; Europe
Abstract:
... An environmental risk assessment for birds and mammals is an important part of any application package for potential registration of pesticides in Europe. A realistic estimation of the exposure of a certain species to the pesticide under field conditions is a refinement factor in long‐term higher‐tier risk assessments. Although guidance on how to collect specific exposure data is provided, there i ...
Alison Tovar; M. Elizabeth Miller; Virginia C. Stage; Jessica A. Hoffman; Emily Hill Guseman; Susan Sisson; Dana Shefet; Sara E. Bejamin-Neelon; Taren Swindle; Saima Hasnin; Marco Beltran
childhood obesity; data quality; descriptive statistics; nutrition; protocols; surveys
Abstract:
... Background: Although there is a federal mandate to collect anthropometric data in Head Start (HS), little is currently known about the processes used to collect the height and weight measurements across programs and how the results are communicated to parents/guardians. The goal of this study was to understand anthropometric data collection and dissemination procedures in a sample of HS programs s ...