scholarly journals Influence of Plant Space on Dynamic Changes of Soil Nitric Nitrogen sunder Film Hole Irrigation

2012 ◽  
Vol 28 ◽  
pp. 246-251 ◽  
Author(s):  
Hu Hao-yun ◽  
Jin Jie ◽  
Cheng Dong-juan ◽  
Gao Ran
Keyword(s):  
Dynamic Changes ◽  
Nitric Nitrogen

Research on the Influence of Irrigation Amount on Dynamic Changes and Accumulation of Soil Nitric Nitrogen under Film Hole Irrigation

2012 ◽  
Vol 518-523 ◽  
pp. 5292-5296 ◽  
Author(s):  
Feng Tai Guo ◽  
Tao Tao ◽  
Dong Juan Cheng ◽  
Ran Gao
Keyword(s):  
Nitrogen Content ◽  
Environmental Impacts ◽  
Nitrate Leaching ◽  
Nitrogen Accumulation ◽  
Hole Center ◽  
Dynamic Changes ◽  
Irrigation Amount ◽  
Growing Period ◽  
Maximum Period ◽  
Nitric Nitrogen

Through the experiment of different Irrigation Amounts with urea applied, the paper studied the influence of Irrigation Amounts on soil nitric nitrogen dynamical changes under film hole irrigation and the nitric nitrogen content of the growing period was determined. The result showed: different irrigation amount in the profiles being 3cm and 8cm away from the film hole center, it appeared nitric nitrogen accumulation peaks, increased the irrigation amount promoted the transformation of urea, increased the transformed nitric nitrogen content and distribution of nitric nitrate and the risk of nitric nitrate leaching. In the profiles being 3cm away from the film hole center, the nitric nitrogen accumulation peak significantly reduced at harvest stage, but it reduced in the profiles being 8cm away from the film hole center at milky stage. The milky stage was the maximum period when the corn uptook nitrogen at different irrigation amount. Increased irrigation amount lower the accumulation content of nitric nitrogen near the film hole center after harvest, and higher the accumulation content of nitric nitrogen far away from the film hole center. Above researches could provide the basis for rational fertilization of farmland and nitrate environmental impacts on assessment.

Ultrastructural Cytopiasmic Changes of Adrenal Cortex During Pregnancy

1969 ◽  
Vol 27 ◽  
pp. 298-299
Author(s):  
T. M. Murad ◽  
Karen Israel ◽  
Jack C. Geer
Keyword(s):  
Adrenal Gland ◽  
Steroid Hormones ◽  
Adrenal Cortex ◽  
Lipid Droplets ◽  
Plasma Cholesterol ◽  
Adrenal Steroids ◽  
Dynamic Changes ◽  
Cortical Cells ◽  
Acetyl Coenzyme A ◽  
Adrenal Cortical Cells

Adrenal steroids are normally synthesized from acetyl coenzyme A via cholesterol. Cholesterol is also shown to enter the adrenal gland and to be localized in the lipid droplets of the adrenal cortical cells. Both pregnenolone and progesterone act as intermediates in the conversion of cholesterol into steroid hormones. During pregnancy an increased level of plasma cholesterol is known to be associated with an increase of the adrenal corticoid and progesterone. The present study is designed to demonstrate whether the adrenal cortical cells show any dynamic changes during pregnancy.

Dynamic changes of the pyramidal tract after ischemic stroke detected by MR tractography

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S152-S152
Author(s):  
Mette Møller ◽  
Jesper Frandsen ◽  
Grethe Andersen ◽  
Albert Gjedde ◽  
Peter Vestergaard-Poulsen
Keyword(s):  
Ischemic Stroke ◽  
Pyramidal Tract ◽  
Dynamic Changes

Can trust become a factor of economic growth? Dynamic changes in the level of trust of Russian youth

2020 ◽  
pp. 92-107 ◽  
Author(s):  
A. I. Bakhtigaraeva ◽  
A. A. Stavinskaya
Keyword(s):  
Institutional Environment ◽  
Negative Effects ◽  
Dynamic Changes ◽  
Generalized Trust ◽  
Level Of Education ◽  
Advantages And Disadvantages ◽  
The Future ◽  
Analysis Of Dynamics

The article considers the role of trust in the economy, the mechanisms of its accumulation and the possibility of using it as one of the growth factors in the future. The advantages and disadvantages of measuring the level of generalized trust using two alternative questions — about trusting people in general and trusting strangers — are analyzed. The results of the analysis of dynamics of the level of generalized trust among Russian youth, obtained within the study of the Institute for National Projects in 10 regions of Russia, are presented. It is shown that there are no significant changes in trust in people in general during the study at university. At the same time, the level of trust in strangers falls, which can negatively affect the level of trust in the country as a whole, and as a result have negative effects on the development of the economy in the future. Possible causes of the observed trends and the role of universities are discussed. Also the question about the connection between the level of education and generalized trust in countries with different quality of the institutional environment is raised.

Editor's Note

1996 ◽  
Vol 19 (1) ◽  
pp. i-i
Author(s):  
Miguel A. Carranza
Keyword(s):  
Ethnic Studies ◽  
Annual Conference ◽  
Special Issue ◽  
Dynamic Changes ◽  
Mary Kelly

This special issue of the journal is on the theme “Ethnicity, Family and Community,” which was the topic of our 23rd annual conference held in March 1995 in Boulder, Colorado. Mary Kelly, our special issue editor, has selected an excellent set of quality articles focused on the theme. Nowhere more than in the field of ethnic studies do the topics of family and community play such important roles. One need only look at the dynamic changes occurring in U.S. society to see how these changes influence and are influenced by ethnic/racial families and the communities in which they reside.

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