Results 1 to 10 of about 18,323 (221)

Novel Calibration Approach for Monitoring Aerosol Hydrogen Isotopes Using Laser-Induced Breakdown Spectroscopy for Molten Salt Reactor Off-Gas Streams [PDF]

Sensors, 2023
Online monitoring is a key challenge for the continued development of molten salt reactor (MSR) technology. Laser-induced breakdown spectroscopy (LIBS) has previously been demonstrated to be a viable tool for monitoring aerosolized species and noble ...
Hunter B. Andrews, Joanna McFarlane
doaj   +2 more sources

CONSTITUÍNTES QUÍMICOS DE Protium paniculatum(BURSERACEAE) [PDF]

Acta Amazonica, 1994
Dos extratos etéreo e etanólico da casca da madeira de Protium paniculatumEngl. foram isolados α- e β-amirina (0,012%), β-sitosterol e estigmasterol (0,003%) e o ácido 3,3'-di-O-metilelágico (0,093%0).
Maria das G. B. ZOGHBI, Jane B. G. SIQUEIRA, Esther L. A. WOLTER, Orlando L.P. Júnior   +3 more
doaj   +9 more sources

Characterization, antimicrobial and antitumor activity of superoxide dismutase extracted from Egyptian honeybee venom (Apis mellifera lamarckii)

Journal of Genetic Engineering and Biotechnology, 2023
Background Superoxide dismutase is an important antioxidative stress enzyme which is found in honeybee venom and has a wide pharmaceutical and medical applications.
Mohamed M. Abdel-Monsef, Doaa A. Darwish, Hind A. Zidan, Ahmed A. Hamed, Mahmoud A. Ibrahim   +4 more
doaj   +1 more source

Exploring the links between secondary metabolites and leaf spectral reflectance in a diverse genus of Amazonian trees

Ecosphere, 2021
Plant defense chemistry is often hypothesized to drive ecological and evolutionary success in diverse tropical forests, yet detailed characterizations of plant secondary metabolites in tropical plants are logistically challenging.
Paul V. A. Fine, Diego Salazar, Roberta E. Martin, Margaret R. Metz, Tracy M. Misiewicz, Gregory P. Asner   +5 more
doaj   +1 more source

New state record of Lopesia similis Maia (Insecta, Diptera, Cecidomyiidae) [PDF]

Check List, 2014
Lopesia similis Maia, 2004 (Insecta, Diptera, Cecidomyiidae) is recorded for the first time in the state of Mato Grosso do Sul. This species induces leaf galls on Protium heptaphyllum March (Burseraceae).
Sharlene da Silva, Valéria Maia
doaj   +3 more sources

On the study of catalytic membrane reactor for water detritiation: Membrane characterization. [PDF]

, 2013
Tritium waste recycling is a real economic and ecological issue. Generally under the non-valuable Q2Oform (Q = H, D or T), waste can be converted into fuel Q2for a fusion machine (e.g. JET, ITER) by isotopeexchange reaction Q2O + H2= H2O + Q2.
Joulia, Xavier, Liger, Karine, Mascarade, Jérémy, Meyer, Xuân-Mi, Perrais, Christophe, Tosti, Silvano, Troulay, Michèle   +6 more
core   +2 more sources

Quantifying loopy network architectures [PDF]

, 2011
Biology presents many examples of planar distribution and structural networks having dense sets of closed loops. An archetype of this form of network organization is the vasculature of dicotyledonous leaves, which showcases a hierarchically-nested ...
A Barrat, A Perna, A Rinaldo, A Rinaldo, A Roth-Nebelsick, A Strahler, A Tero, AG Rolland-Lagan, B Blonder, B Ellis, E Katifori, Eleni Katifori, F Corson, F Corson, H Fujita, H Takayasu, J Kirchner, J Shao, J VanPelt, Jérémie Bourdon, K Paik, L da F Costa, M Sales-Pardo, Marcelo O. Magnasco, MEJ Newman, P Blinder, P Dimitrov, R Albert, R Horton, R Melville, S Boccaletti, WK Ang, Y Couder   +32 more
core   +5 more sources

A taxonomic revision of Camptocerus Dejean (Coleoptera: Curculionidae: Scolytinae) [PDF]

, 2010
The Neotropical ambrosia beetle genus Camptocerus Dejean was revised. Monophyly of the genus was tested using 66 morphological characters in a cladistic analysis. Camptocerus was recovered as monophyletic and 31 species were recognized.
Cognato, Anthony I., Smith, Sarah M.
core   +2 more sources