Results 61 to 70 of about 292,636 (314)

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Comparative Evaluation of Common Savannah Grass on a Range of Soils Subjected to Different Stresses II: Root Zone Physical Condition

open access: yesAgronomy, 2014
The root zone physical condition influences root development and function, which affects turfgrass growth, quality and performance. The temporal variability of root zone properties was investigated in a factorial experiment combining sand layering ...
Raymond Springer   +2 more
doaj   +1 more source

Manifold limits on seed production by individual flowering plants

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Historically, angiosperm seed production has been considered to be either pollen or resource limited. However, seed production involves more than pollen and seed resources and typically involves multiple ovules in multiple flowers. Therefore, various constraints may act simultaneously. Methods Proportional components of seed production
Lawrence D. Harder   +1 more
wiley   +1 more source

Basic exchangeable cations in Finnish mineral soils

open access: yesAgricultural and Food Science, 1972
The content of exchangeable Ca, Mg, K and Na replaced by neutral ammonium acetate was determined in 470 samples of mineral soils from various parts of Finland, except from Lapland.
Armi Kaila
doaj  

Statistical Evaluation of Sleeve Friction to Cone Resistance Ratio in Coarse-Grained Soils

open access: yesBuildings
The investigation of soil is a particularly important stage of structural design. Cone penetration tests (CPTs) are the most common soil investigation techniques. The results of these tests provide information about the values of cone resistance (qc) and
Danutė Sližytė   +2 more
doaj   +1 more source

Characterization of active layer water contents in the McMurdo Sound region, Antarctica [PDF]

open access: yes, 2010
The liquid soil water contents in the seasonally thawed layer (active layer) were characterized from seven soil climate monitoring sites - four coastal sites from south to north (Minna Bluff, Scott Base, Marble Point and Granite Harbour), and inland ...
Balks, Megan R.   +2 more
core   +2 more sources

Are There Causal Associations Between Obsessive‐Compulsive Disorder and Cardiometabolic Phenotypes? A Genetic Correlation and Bi‐Directional Mendelian Randomization Study

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT In epidemiological studies, obsessive‐compulsive disorder (OCD) is robustly associated with increased risk of cardiometabolic disorders, including cardiovascular diseases, type 2 diabetes, and obesity. However, the mechanisms behind these associations are unclear. We conducted genetic correlation analyses to explore shared genetic etiology and
Robyn E. Wootton   +217 more
wiley   +1 more source

Fractions of inorganic phosphorus in Finnish mineral soils

open access: yesAgricultural and Food Science, 1964
Inorganic phosphorus in 363 samples of Finnish mineral soils was fractionated by the procedure of CHANG and JACKSON. The average content of total inorganic phosphorus determined as the difference of the total phosphorus and organic phosphorus tended to ...
Armi Kaila
doaj  

Collapse characteristics and influencing factors of wind-blown sands in the southern margin of Mu Us Desert, Yulin, Shaanxi Province

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao
With the development of arid and semi-arid regions in China, the hazards posed by collapsible sands to engineering construction have become increasingly significant.
Xi ZHANG   +4 more
doaj   +1 more source

Disease Remission: A Scoping Review With Thematic Analysis of the Scientific Literature With Implications for Chronic Rhinosinusitis

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Remission, a term used to describe a goal of treatment for some chronic diseases, has recently been proposed for chronic rhinosinusitis (CRS). However, it is unclear what remission means for CRS and why it should serve as a goal in the present‐day treatment of CRS.
Nikhil Parail   +7 more
wiley   +1 more source

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