5,230 research outputs found
The short-term effects of management changes on watertable position and nutrients in shallow groundwater in a harvested peatland forest
This work was funded by the Department of Agriculture, Fisheries and Food and the Environmental Protection Agency under the STRIVE program 2007 – 2013.peer-reviewedManagement changes such as drainage, fertilisation, afforestation and harvesting (clearfelling) of forested peatlands influence watertable (WT) position and groundwater concentrations of nutrients. This study investigated the impact of clearfelling of a peatland forest on WT and nutrient concentrations. Three areas were examined: (1) a regenerated riparian peatland buffer (RB) clearfelled four years prior to the present study (2) a recently clearfelled coniferous forest (CF) and (3) a standing, mature coniferous forest (SF), on which no harvesting took place. The WT remained consistently below 0.3 m during the pre-clearfelling period. Results showed there was an almost immediate rise in the WT after clearfelling and a rise to 0.15 m below ground level (bgl) within 10 months of clearfelling. Clearfelling of the forest increased dissolved reactive phosphorus concentrations (from an average of 28–230 μg L−1) in the shallow groundwater, likely caused by leaching from degrading brash mats.Environmental Protection AgencyDepartment of Agriculture, Food and the Marin
The 4-H dairy club : V. Dairy goats. Leader's guide ... to be used with 4-H Club circular 65, Missouri Experiment Station Bul. 375.
September, 1940.At head of title: "Cooperative Extension Work in Agriculture and Home Economics, University of Missouri, College of Agriculture and the United States Department of Agriculture cooperating. J. W. Burch, Director, Agriculture Extension Service. Distributed in furtherance of the Acts of Congress of May 8, and June 30, 1914.""Prepared by T. T. Martin and E. T. Itschner, State Club Agents, in collaboration with M. J. Regan, Extension Dairyman."Title from cover
Palliation and life quality in lung cancer; how good are clinicians at judging treatment outcome?
A recent trial by the MRC Lung Cancer Working Party used physician assessments to compare two palliative schedules of radiotherapy in lung cancer. A prospective study has been undertaken on a subset of these trial patients to see how physician assessments of symptomatic relief and general condition correlate with patient perception of therapeutic response. In 40 patients followed up monthly from presentation until close to death, good agreement was found between doctors and patients on change in specific physical symptoms and overall physical condition. Doctors were poor judges of life quality at presentation but appeared able to identify relative improvement or deterioration in overall quality of life. In conclusion, physician assessments may constitute valid end-points for radiotherapy trials comparing palliative schedules in lung cancer
A study of the toxic principle in red clover
A report on Department of Agricultural Chemistry research project 247, Forage Poisoning--P. [2].Digitized 2007 AES.Includes bibliographical references (page 12)
The suppression of superconductivity in MgCNi3 by Ni-site doping
The effects of partial substitution of Cu and Co for Ni in the intermetallic
perovskite superconductor MgCNi3 are reported. Calculation of the expected
electronic density of states suggests that electron (Cu) and hole (Co) doping
should have different effects. For MgCNi3-xCux, solubility of Cu is limited to
approximately 3% (x = 0.1), and Tc decreases systematically from 7K to 6K. For
MgCNi3-xCox, solubility of Co is much more extensive, but bulk
superconductivity disappears for Co doping of 1% (x = 0.03). No signature of
long range magnetic ordering is observed in the magnetic susceptibility of the
Co doped material.Comment: submitted, Solid State Communication
The 4-H Dairy Club
June, 1939."Prepared by M. J. Regan and Warren Gifford, Extension Dairyman, in collaboration with T. T. Martin and E . T. Itschner, State Club Agents. Acknowledgment is made of material used from Mo. Exp. Sta. Bul. 377, 'Raising the Dairy Calf,' by A. H. A. Herman."Cover title.I. Calf -- II. Heifer -- III. Cow -- IV. Cow testing
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