Results 111 to 120 of about 951,010 (346)
Size‐based regulation and water quality: Evidence from the Iowa hog industry
Abstract The growing prevalence of animal feeding operations (AFOs) in the United States raises concerns among the public and regulators about their impact on local environmental quality. By linking historical regulatory records of AFOs in Iowa to downstream surface water pollution monitors, this paper studies the effects of the 2003 Clean Water Act ...
Chen‐Ti Chen +3 more
wiley +1 more source
New Jersey Ferns and Fern Allies.
James H. Peck +2 more
openaire +2 more sources
ABSTRACT The allergy and asthma epidemic in urban societies following World War II is mostly caused by changes in the environment, diet and lifestyle. Disconnection of urban populations from the wider environment has reduced the protective factors building up immunological resilience.
Tari Haahtela +21 more
wiley +1 more source
Quality from Kent: Preliminary results from the analysis of fifth‐ to seventh‐century silver alloys
Abstract This paper explores early results from the chemical and lead isotope analysis of 30 silver‐alloy objects from southeast England dating between the fifth and seventh centuries CE, presenting limited aspects of the three main analyses that were conducted. First, a comparison of the results gained from surface x‐ray fluorescence (pXRF) values and
Toby F. Martin, Matthew J. Ponting
wiley +1 more source
Source: Alfred Lichtenstein: Gesammelte Gedichte. Auf Grund der handschriftlichen Gedichthefte Alfred Lichtensteins kritisch herausgegeben von Klaus Kanzog, Zürich: Arche, 1962.
openaire +2 more sources
The archaeological sediment sequences analysis from the Wanbei site reveals a predominantly warm and humid climate with a brief cooling phase between 5600 and 5400 a BP, during the Middle Holocene in the middle and lower Huai River valley. Despite the cooling trend, rice remained the dominant crop in mixed farming, while the proportion of millet ...
Weixin Tian +9 more
wiley +1 more source
Palaeoenvironmental records along the eastern coast of Thailand remain sparse, with only a few studies attempting to reconstruct past climatic and environmental conditions. However, additional palaeoenvironmental, palaeoclimatic and sea‐level records are needed to improve our understanding of coastal evolution and local environmental changes.
Sakonvan Chawchai +7 more
wiley +1 more source
Una especie nueva de Dennstaedtia (Filicales: Dennstaedtiaceae) para México
Dennstaedtia gracilis A. Rojas et Tejero (Dennstaedtiaceae) es aquí descrita e ilustrada como una especie nueva endémica de México. Pertenece al grupo de especies que presentan un ala dorsal en la costa de las pínnulas pero difiere por la combinación de ...
Alexander Fco. Rojas-Alvarado +1 more
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