scholarly journals The results of interspecific potato hybrids evaluation using marker-assisted, laboratory and field methods

Author(s):  
V A Biryukova ◽  
A A Churakov ◽  
V A Zharova ◽  
A N Khalipsky ◽  
V A Kozlov
Author(s):  
E. Betzig ◽  
A. Harootunian ◽  
M. Isaacson ◽  
A. Lewis

In general, conventional methods of optical imaging are limited in spatial resolution by either the wavelength of the radiation used or by the aberrations of the optical elements. This is true whether one uses a scanning probe or a fixed beam method. The reason for the wavelength limit of resolution is due to the far field methods of producing or detecting the radiation. If one resorts to restricting our probes to the near field optical region, then the possibility exists of obtaining spatial resolutions more than an order of magnitude smaller than the optical wavelength of the radiation used. In this paper, we will describe the principles underlying such "near field" imaging and present some preliminary results from a near field scanning optical microscope (NS0M) that uses visible radiation and is capable of resolutions comparable to an SEM. The advantage of such a technique is the possibility of completely nondestructive imaging in air at spatial resolutions of about 50nm.


2018 ◽  
Author(s):  
E.V. Rogozina ◽  
◽  
N.A. Chalaya ◽  
M.P. Beketova ◽  
V.A. Biryukova ◽  
...  

ANRI ◽  
2020 ◽  
pp. 31-44
Author(s):  
Aleksey Ekidin ◽  
Aleksey Vasil'ev ◽  
Maksim Vasyanovich ◽  
Evgeniy Nazarov ◽  
Mariya Pyshkina ◽  
...  

The article presents the results of field studies in the area of the Belarusian NPP in the pre-operational period. The «background» contents of gamma-emitting radionuclides in individual components of the environment are determined. The main array of dose rate measurements in the area of the NPP construction site is in the range 0.048 ÷ 0.089 μSv/h. External radiation in the surveyed area is formed at 96% due to 40K, 226Ra and 232Th. The information obtained can be used to correctly interpret the data of future radiation monitoring during normal operation of nuclear power plants.


Journal ◽  
2016 ◽  
Vol 6 ◽  
Author(s):  
Melanie A. Medeiros ◽  
Jennifer Guzmán

Trends in higher education pedagogy increasingly point to the importance of transformational experiences as the capstone of liberal arts education. Practitioners of ethnography, the quintessential transformational experience of the social sciences, are well-positioned to take the lead in designing courses and term projects that afford undergraduate students opportunities to fundamentally reshape their understanding of the social world and their own involvement within it. Furthermore, in the United States, colleges and universities have become proponents of service learning as a critical component of a holistic educational experience. In this article, we describe how service learning can be incorporated into training students in ethnographic field methods as a means to transformational learning and to give them skills they can use beyond the classroom in a longer trajectory of civic participation. We discuss strategies, opportunities, and challenges associated with incorporating service learning into courses and programs training students in ethnographic field methods and propose five key components for successful ethnographic service learning projects. We share student insights about the transformational value of their experiences as well as introduce some ethical concerns that arise in ethnographic service-learning projects.


Weed Science ◽  
1977 ◽  
Vol 25 (1) ◽  
pp. 1-4 ◽  
Author(s):  
P.C. Quimby ◽  
E.B. Hollingsworth ◽  
R.L. McDonald

Subirrigated pot-plant systems were developed for greenhouse simulations of field methods being tested for herbicidal control of saltcedar (Tamarix pentandraPall.). The methods included: over-the-top spraying; soil injection; soil layering, with whole plants transplanted onto the herbicide layer; and soil layering by severing the roots and concomitantly injecting herbicide. Existing foliar application techniques were improved for greenhouse testing of herbicides and results from preliminary tests were apparently similar to literature reports of limited efficacy in the field. Preliminary results from these greenhouse techniques showed that root zone applications, either by soil layering or soil injection, were very effective; stem or foliar applications were less effective.


2021 ◽  
Author(s):  
Mary B. Meyerpeter ◽  
Kade D. Lazenby ◽  
Peter S. Coates ◽  
Mark A. Ricca ◽  
Steven R. Mathews ◽  
...  

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