Results 51 to 60 of about 684 (116)

Conservation-Grazing Lands P.14

open access: yes, 1939
View northeast down canyon from station 6, plot 2, Deep Creek, showing smoot brome grass reseeded in 1936. Brome 3 feet high in many places. Aug. 8, 1939 (U.S. Soil Conservation Service photo. No. Utah-409-C)
U.S. Soil Conservation Service
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Tailored Surface-Enhanced Raman Nanopillar Arrays Fabricated by Laser-Assisted Replication for Biomolecular Detection Using Organic Semiconductor Lasers

open access: yes, 2016
Organic semiconductor distributed feedback (DFB) lasers are of interest as external or chip-integrated excitation sources in the visible spectral range for miniaturized Raman-on-chip biomolecular detection systems.
Sergei Lebedkin (1427488)   +10 more
core   +1 more source

Conservation-Grazing Lands P.7

open access: yes, 1959
Desert loam range site in foreground. Background is Desert cobbly loam range site. This picture was taken about 300 yds morth of the junction of Utah Highway 10 and the Cleveland Road, looking toward the west. Huntington River District.
Fulton, Don
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Conservation-Grazing Lands P.11

open access: yes, 1959
Livestock, both sheep and cattle, grazing on annual rye pasture. This is a way to secure pasture quickly. Photo by Fred O. Case, Soil Conservation Service, 5/20/59. 1/2 mile east of Elmo, Emery County.
Case, Fred O.; U.S. Soil Conservation Service
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Tierra fértil

open access: yes, 1975
Proporcionar al agricultor las nociones básicas para el mejoramiento de los suelos a fin de mejorar la producción y productividad de las parcelas y, por qué no, las normas para una adecuada protección de la tierra, principal factor de nuestra economía ...
Ramírez Ramírez, José Ernesto
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Double microring resonators polymer waveguide for optical biosensing [PDF]

open access: yes, 2018
The potential of double microring resonator polymer waveguide as an optical biosensor was demonstrated. Visible wavelength region at 632 nm is used as a centre wavelength because it is commonly used in biological and chemical sensing for both label and ...
Mohd Salleh, Mohd Haziq   +2 more
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Effects of Phenolic Pollution on Interspecific Competition between Microcystis aeruginosa and Chlorella pyrenoidosa and their Photosynthetic Responses

open access: yes, 2019
The demand for phenolic compounds has been increasing rapidly, which has intensified the production and usage of phenol at a commercial scale. In some polluted water bodies, phenol has become one of the typical aromatic contaminants.
Zhipeng Duan   +5 more
core   +1 more source

Double microring resonators polymer wave guide for optical biosensing / Mohd Hazimin Mohd Salleh, Mohd Haziq M.Salleh and Muhammad Salihi Abd Hadi [PDF]

open access: yes, 2018
The potential of double microring resonator polymer wave guide as an optical biosensor was demonstrated. Visible wavelength region at 632 nm is used as a centre wavelength because it is commonly used in biological and chemical sensing ...
Abd Hadi, Muhammad Salihi   +2 more
core  

Defendamos nuestro suelo

open access: yes, 1979
El problema de la destrucción del suelo o capa superficial de la corteza terrestre es uno de los más graves y apremiantes de las actuales sociedades. La tala, la quema, la erosión, la utilización irracional y egoísta han hecho que cada día se reduzcan ...
Ramírez Ramírez, José Ernesto
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Do stem cells transfected with CXCR4 enhance bone formation in osteoporosis? [PDF]

open access: yes, 2018
Osteoporosis affects bone mass and bone micro-architecture, reducing mechanical strength. SDF-1 and its ligand CXCR4 play significant roles in the migration and engraftment of mesenchymal stem cells (MSCs).
Sanghani-Kerai, Anita
core   +1 more source

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