Results 41 to 50 of about 141 (81)

Inherent calibration of a blue LED-CE-DOAS instrument to measure iodine oxide, glyoxal, methyl glyoxal, nitrogen dioxide, water vapour and aerosol extinction in open cavity mode [PDF]

open access: yesAtmospheric Measurement Techniques, 2010
The combination of Cavity Enhanced Absorption Spectroscopy (CEAS) with broad-band light sources (e.g. Light-Emitting Diodes, LEDs) lends itself to the application of cavity enhanced Differential Optical Absorption Spectroscopy (CE-DOAS) to perform ...
R. Thalman, R. Volkamer
doaj   +1 more source

On the Fate of VOCs During the Spring 2020 COVID‐19 Lockdowns in Europe: A Study Based on the AirBase Data

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 8, 28 April 2025.
Abstract The rapid spread of the SARS‐CoV‐2 virus lead many European governments to issue stay‐at‐home orders for the sake of controlling its impacts on the health systems. The associated decrease in human activities and therefore emissions provided a unique opportunity for a real world laboratory for atmospheric scientists.
Alexandre Caseiro   +2 more
wiley   +1 more source

Los casos morfosintácticos del chocho

open access: yesAnales de Antropología, 2010
Las generalizaciones tipológicas recientes acerca de las diferencias entre los sistemas ergativo y acusativo tratan a veces el caso "sintáctico" tan ampliamente que pasan por alto la importancia funcional del caso morfológico.
Carol C. Mock
doaj   +1 more source

DOAS measurements of formaldehyde and glyoxal above a south-east Asian tropical rainforest [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Tropical rainforests act as a huge contributor to the global emissions of biogenic volatile organic compounds (BVOCs). Measurements of their oxidation products, such as formaldehyde (HCHO) and glyoxal (CHOCHO), provide useful indicators of fast ...
S. M. MacDonald   +7 more
doaj   +1 more source

Protein Quality Assessment of the Deoiled Guamuchil (Pithecellobium dulce [Roxb.]) Seed Flour

open access: yesFuture Postharvest and Food, Volume 2, Issue 1, Page 94-104, March 2025.
Seeds are the main by‐product of guamuchil fruit, which contain a significant proportion of proteins, where arginine, glutamic acid, proline, aspartic acid, and leucine are the dominant amino acids. According to the in vitro digestibility and the calculated protein efficiency ratio, deoiled guamuchil seed flour could be used as an ingredient in food ...
Nitzia Thalía Flores‐Jiménez   +2 more
wiley   +1 more source

OMI air-quality monitoring over the Middle East [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Using Ozone Monitoring Instrument (OMI) trace gas vertical column observations of nitrogen dioxide (NO2), formaldehyde (HCHO), sulfur dioxide (SO2), and glyoxal (CHOCHO), we have conducted a robust and detailed time series analysis to assess changes in ...
M. P. Barkley   +5 more
doaj   +1 more source

Categorization of Food Consumption Patterns in Indigenous Communities of the Quilotoa in Ecuador

open access: yesFood Science &Nutrition, Volume 13, Issue 2, February 2025.
Four consumption pattern types were defined. The category “high consumption” includes carbohydrates such as rice (89.3%), potatoes (88.9%), oats (74.1%), and morocho (74%). Protein intake was limited to eggs (82%) and fish (73.5%). Vegetables such as carrots (90.4%) and onions (96.1%) were classified as condiments.
Edgar Wilson Rojas   +5 more
wiley   +1 more source

The CU 2-D-MAX-DOAS instrument – Part 1: Retrieval of 3-D distributions of NO2 and azimuth-dependent OVOC ratios [PDF]

open access: yesAtmospheric Measurement Techniques, 2015
We present an innovative instrument telescope and describe a retrieval method to probe three-dimensional (3-D) distributions of atmospheric trace gases that are relevant to air pollution and tropospheric chemistry.
I. Ortega   +4 more
doaj   +1 more source

Mechanistic Insights and Advances in Electrode/Electrolyte Interfaces for Efficient Electrocatalytic CO2 Reduction to C2 Products

open access: yesSmartMat, Volume 6, Issue 1, February 2025.
To better understand electrocatalytic CO2 reduction (ECR) to C2 products occurring at the electrode/electrolyte interface, the components of the interface were analyzed and the effects of various factors in each component were summarized. Holistically considering the factors from different components in the interface is recommended to obtain a deeper ...
Jie Chen   +7 more
wiley   +1 more source

The Ethnoveterinary Study of Medicinal Plants Utilized in Treating Animal Diseases in Ensaro District, North Shewa Zone of Amhara Regional State in Ethiopia

open access: yesThe Scientific World Journal, Volume 2025, Issue 1, 2025.
An ethnobotanical study was conducted to document the plant‐based indigenous knowledge of the people on the utilization of these medicinal plant resources in Ensaro District, North Shewa Zone, Ethiopia. A total of 100 informants were sampled from four study sites, and a variety of ethnobotanical methods were applied, including semistructured interviews,
Mikias Teshome   +2 more
wiley   +1 more source

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