Results 21 to 30 of about 1,145,440 (162)

Greenness of chemical reactions – limitations of mass metrics [PDF]

open access: yesGreen Chemistry Letters and Reviews, 2013
Abstract The influence of reaction conditions (yield, excess of stoichiometric reagent, molecular weights of reagents, and mass of auxiliary materials and solvents) on the values of several green chemistry mass metrics (E-factor, mass intensity, atom utilization, relative mass efficiency, and element efficiency), for reactions with 1:1 and 1:3 ...
M. Gabriela T.C. Ribeiro   +1 more
openaire   +1 more source

Cumulative residential greenness and childhood body mass index [PDF]

open access: yesEnvironmental Epidemiology
Background: Childhood obesity is a complex and multifaceted public health issue. Several studies have found that children living in greener neighborhoods have a lower body mass index (BMI); however, evidence on longitudinal exposure remains limited.
Jo Davies   +7 more
openaire   +2 more sources

Green's function zeros in Fermi surface symmetric mass generation

open access: yesPhysical Review B, 2023
The Fermi surface symmetric mass generation (SMG) is an intrinsically interaction-driven mechanism that opens an excitation gap on the Fermi surface without invoking symmetry-breaking or topological order. We explore this phenomenon within a bilayer square lattice model of spin-1/2 fermions, where the system can be tuned from a metallic Fermi liquid ...
Da-Chuan Lu, Meng Zeng, Yi-Zhuang You
openaire   +2 more sources

Use of cytoplasmic male sterility in sorghum breeding for productivity

open access: yesЗерновое хозяйство России, 2023
The productivity increase of many agricultural crops is associated with the production of heterotic hybrid forms that are more productive than conventional varieties.
N. A. Kovtunova   +4 more
doaj   +1 more source

EFFECT OF SILICON CONTAINING PRODUCTS ON FORMATION OF CORN YIELD [PDF]

open access: yesVolga Region Farmland, 2020
The article presents the results of studies on the effect of various types of silicon containing products on formation of corn yield, depending on the timing of nonroot treatment.
S.A. Semina   +2 more
doaj   +1 more source

The new maize hybrids for silage

open access: yesЗерновое хозяйство России, 2022
Maize is considered an unsurpassed silage crop, so breeding in this direction is of great relevance. The study was carried out at the FSBSI «Agricultural Research Center «Donskoy» in 2019–2021.
G. Ya. Krivosheev   +3 more
doaj   +1 more source

The infinite mass limit of the two-particle Green function in QED [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 1997
13 pages, Tex, no ...
Jallouli, H., Sazdjian, H.
openaire   +3 more sources

Productivity of new sainfoin varieties and promising lines in the conditions of the south of Russia

open access: yesЗерновое хозяйство России, 2023
The current paper has presented the study results of promising lines of sainfoin in the competitive variety testing. The purpose of the current study was to estimate the fodder, seed productivity and quality of the fodder mass of promising sainfoin lines
A. A. Regidin   +3 more
doaj   +1 more source

Effect of sowing time on productivity of fenugreek varieties (Trigonella foenum-graecum L., Trigonella coerulea (Desr.) Ser.)

open access: yesPlant Varieties Studying and Protection, 2016
Purpose. Determination of sowing time effect on productivity of various fenugreek species in the Forest-Steppe zone of Ukraine. Methods. Field study, laboratory test, analytical approach and statistical evaluation. Results.
І. М. Бобось
doaj   +1 more source

The estimation of productivity and quality of sainfoin forage

open access: yesЗерновое хозяйство России, 2020
In the arid south ofRussiasainfoin is one of the key perennial legume forage grasses. It has a number of economic and biological traits and properties, such as anything goes approach to soil cultivation, drought tolerance, early maturity, stability of ...
A. Ignatiev, A. A. Regidin
doaj   +1 more source

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