Results 121 to 130 of about 320,187 (264)
Applied SciencesThis study presents a multi-analytical investigation of the wooden components from Khufu’s Second Solar Boat, one of the valuable archaeological discoveries in ancient Egypt.
Shimaa Ibrahim +6 more
doaj +1 more source
Journal of Plant Nutrition and Soil Science, EarlyView.ABSTRACT Background Microplastic (MP) contamination in agroecosystems is an increasingly recognized environmental concern, whereas its polymer‐specific impacts on plant growth and nutritional composition remain poorly understood. Aim Our study aimed to evaluate how polymer type and concentration of MPs directly affect plant growth, physiological traits,
Rana Roy, Karl Hermann Mühling
wiley +1 more source
Perspectives of High‐Resolution Mass Spectrometry in Soil Science
Journal of Plant Nutrition and Soil Science, EarlyView.ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has evolved into a transformative tool for unraveling the complex chemical ...
Bruno Glaser +11 more
wiley +1 more source
Journal of Quaternary Science, EarlyView.Abstract Worldwide, lacustrine ecosystems are threatened by eutrophication and deoxygenation. Both processes are driven by the combined effects of human activities and climate change. Understanding the pre‐anthropogenic nexus between warming, eutrophication, deoxygenation, and related feedback is essential to determine how lakes respond to rapid ...
Noé R.M.M. Schmidhauser +7 more
wiley +1 more source
Effects of Competition over Quality-Adjusted Price Indexes: An Application to the Spanish Automobile Market [PDF]
Using a newly constructed data set, we calculate quality-adjusted price indexes after estimating hedonic price regressions from 1988 to 2004 in the Spanish automobile market.
Ana Isabel Guerra Hernández
core
The role of soil biotic processes in the search of quantitative indexes of soil quality [PDF]
, 1992 Non-Peer ReviewedMonitoring soil quality involves measurements of soil properties over periods of several years. This article examines the potential role of chemical SOM composition and of soil biotic processes as faster indexes of soil quality.
Monreal, C.M. +2 more
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Synergistic effects of maize defoliation and common bean relay cropping in Western Ethiopia
JSFA reports, EarlyView.Abstract Background Maize defoliation is practiced to enhance crop management by improving light penetration, nutrient allocation, controlling weeds, and providing supplementary feeds for livestock. A rapid decline in soil fertility and low crop yields associated with maize‐based monocropping has prompted the recent introduction of maize common bean ...
Alemayehu Dabesa +2 more
wiley +1 more source
Bibliography on health indexes: number 4, 1989
Clearinghouse on Health Indexes. Bibliography on Health Indexes, Number 4, 1989. 59 pp.
core
Cost of Living Indexes and Exact Index Numbers [PDF]
The paper reviews and extends the theory of exact and superlative index numbers. Exact index numbers are empirical index number formula that are equal to an underlying theoretical index, provided that the consumer has preferences that can be represented ...
Diewert, Erwin
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White and whole wheat flour breads: composition and simultaneous exposure to group B trichothecenes
Journal of the Science of Food and Agriculture, EarlyView.Abstract BACKGROUND The study aimed to determine the profile of group B trichothecenes (TCTBs), to estimate the daily exposure to them and to evaluate the relationship with the composition of different types of sliced wheat bread. A method for simultaneous determination of the TCTBs (deoxynivalenol (DON), 3‐acetyl‐deoxynivalenol, 15‐acetyl ...
Andressa Cunha Lemos +4 more
wiley +1 more source