نتایج جستجو برای: eroded soils
تعداد نتایج: 51655 فیلتر نتایج به سال:
Potential aerosol release rates during wind erosion of soils have been quantified by such methods as sandSuspendable-size soil particles are released during wind erosion and blasting aggregates in laboratory settings (Alfaro et al., transported downwind, impacting regional air quality. Of particular concern are those particles with a mean aerodynamic diameter of 1998), measuring concentrations ...
This study investigated the effect of benzalkonium chloride (BAC) modification of two adhesive systems on long-term bond strength to normal and artificially eroded dentin. A total of 128 extracted human molars were sectioned and the buccal and oral surfaces of each molar were ground until the dentin. One half was left untreated (normal dentin) while the other half underwent artificial erosion. ...
This in vitro study evaluated the immediate and 6 months microshear bond strength (µSBS) of different adhesive systems to sound and eroded dentin. Sixty bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated into two groups: sound dentin (immersion in artificial saliva) and eroded dentin (erosive challenge following a p...
The resorption pit assay is classically used to evaluate osteoclast activity on bone or dentine slices that can be eroded by these cells. Two different types of cells were generated from peripheral blood mononuclear cells cultured in the presence of M-CSF + sRANKL or with M-CSF + LPS. At the end of the culture period (21 days), cells were discarded and the dentine slices stained with toluidine ...
The removal of trees in rangelands can create gaps and lead to increased grass production that could suppress subsequent tree seedling establishment growth. However, also enhance the growth remaining trees. We conducted a field experiment at two savanna sites with different soil texture woody species. used 24 plots each site determine effect tree-removal intensities (0%, 10%, 20%, 50%, 75% 100%...
Erosion by water reduces soil quality and hence crop yield. Understanding the response of yields to erosion is vital in assessing agriculture’s vulnerability erosion. However, these effects are difficult quantify. The study presents a quantitative relationship between productivity rainfed wheat (Triticum aestivum) comparing field plots with different degrees some sub-tropical alfisols Doon Vall...
BACKGROUND Systemic levels of myeloperoxidase predict prognosis in patients with acute coronary syndromes and are considered a marker of plaque vulnerability. It is not known whether myeloperoxidase is associated with different coronary morphologies (ie, rupture or erosion of the culprit lesion) in patients with acute coronary syndrome. METHODS AND RESULTS Twenty-five consecutive patients (ag...
Background—Systemic levels of myeloperoxidase predict prognosis in patients with acute coronary syndromes and are considered a marker of plaque vulnerability. It is not known whether myeloperoxidase is associated with different coronary morphologies (ie, rupture or erosion of the culprit lesion) in patients with acute coronary syndrome. Methods and Results—Twenty-five consecutive patients (aged...
Soil erosion is one of the major environmental problems in tropical ecosystems; however, lack information on amount eroded soils Rwandan mountainous watersheds hinders effective decision-making toward sustainable soil management. This study aimed at predicting Rukarara River watershed, Rwanda, and identifying potential areas high risk using revised universal loss equation (RUSLE) implemented a ...
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