scholarly journals Modelling the long‐term impact of harvest weed seed control for species like Bromus diandrus and Hordeum spp. that shed a portion of seed prior to harvest

Weed Research ◽  
2021 ◽  
Catherine P. D. Borger ◽  
Daniel Petersen ◽  
Gurjeet S. Gill ◽  
Brian Schutte
Weed Research ◽  
2021 ◽  
Chaitanya P. Nath ◽  
Kali K. Hazra ◽  
Chandra S. Praharaj ◽  
Ummed Singh ◽  
Sati S. Singh ◽  

Crisis ◽  
2015 ◽  
Vol 36 (3) ◽  
pp. 220-224 ◽  
Steven Stack

Abstract. Background: There has been no systematic work on the short- or long-term impact of the installation of crisis phones on suicides from bridges. The present study addresses this issue. Method: Data refer to 219 suicides from 1954 through 2013 on the Skyway Bridge in St. Petersburg, Florida. Six crisis phones with signs were installed in July 1999. Results: In the first decade after installation, the phones were used by 27 suicidal persons and credited with preventing 26 or 2.6 suicides a year. However, the net suicide count increased from 48 in the 13 years before installation of phones to 106 the following 13 years or by 4.5 additional suicides/year (t =3.512, p < .001). Conclusion: Although the phones prevented some suicides, there was a net increase after installation. The findings are interpreted with reference to suggestion/contagion effects including the emergence of a controversial bridge suicide blog.

2009 ◽  
Jenna L. Claes ◽  
Sean S. Hankins ◽  
J. K. Ford

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 966-P

Xun Yuan ◽  
Andreas Mitsis ◽  
Thomas Semple ◽  
Michael Rubens ◽  
Christoph A. Nienaber

2020 ◽  
Vol 3 (3) ◽  
Jiayue Jiao

 Economic vitality is an important indicator of regional competitiveness. The demand for talents and the vitality of enterprises in different regions are obvious to all and have practical significance. Therefore, it is necessary to establish a survey data model and conduct in-depth study on improving regional economic vitality from the perspective of policy.Based on a variety of forecasting methods, this paper analyzes the short-term and long-term impact of economic policies in Northeast China, and finally puts forward the factors that affect the economic vitality of northeast policies. Finally, the paper puts forward the feasibility and targeted suggestions of strengthening regional economic vitality, obtaining long-term development and building a more competitive city in the new era. 

V.B. Kondratiev

The COVID-19 pandemic has affected the commodity markets and mining industry around the world in different ways. Mining company’s operations have been hit by coronavirus outbreaks and government-mandated production stops. Demand for many commodities remains low. This paper examines the potential long-term impact of the COVID-19 pandemic on future commodity demand, mining prospects, as well as tactical and strategic steps by mining companies to overcome the current crisis quickly and effectively.

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