Results 51 to 60 of about 530,757 (309)
On the plant growth hormone produced by Rhizopus suinus [PDF]
Since it was first discovered that cell elongation in the Avena coleoptile is controlled by a hormone, our understanding of the nature and rôle of this substance has progressed considerably. Apart from the elucidation of its functions in promoting growth,
Thimann, Kenneth V.
core
Flash-Point prediction for binary partially miscible aqueous-organic mixtures [PDF]
Flash point is the most important variable used to characterize fire and explosion hazard of liquids. Herein, partially miscible mixtures are presented within the context of liquid-liquid extraction processes and heterogeneous distillation processes ...
Chen, Chien Tsun +2 more
core +2 more sources
No exact definition of an “organic” substance has been agreed upon by the chemical community and textbook definitions vary substantially. The question of what exactly constitutes an “organic” substance is explored in this paper.
openaire +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
he reaction of Scots pine (Pinus silvestris L.) seedlings to ammonium and nitrate form of nitrogen was investigated. Rates of photosynthesis and respiration, content of chlorophylls, and accumulation of organic substance were determined in 12 and 18 ...
J. Zajączkowska
doaj +1 more source
Climate change being very real and dangerous to our planet, immense efforts are underway to evolve mitigation measures to scale down the emission of greenhouse gasses to the atmosphere.
M P Sujatha, Ph.D +2 more
doaj +1 more source
Guideline for handling pesticide residues in Czech organic production [PDF]
This document was prepared in the project «Development of guidelines for the use of pesticide analysis in organic inspection in the Czech Republic (sampling, evaluation and interpretation)». At the beginning of this project, a workshop with stakeholders
Bickel, Regula +3 more
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LEIBNIZ\u2019S MIRROR THESIS. SOLIPSISM, PRIVATE PERSPECTIVES AND CONCEPTUAL HOLISM [PDF]
One of the symbolic images to which Leibniz constantly entrusted the synthesis of his philosophy regards the idea of considering one and the same city from various visual perspectives.
Nunziante, ANTONIO MARIA
core +2 more sources
Mapping the evolution of mitochondrial complex I through structural variation
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Taking Mytilus coruscus as the research object and using hexavalent chromium [Cr(Ⅵ)] standard substance as the poisoning reagent, the content of chromium (Cr) in M.
ZHU Yin +5 more
doaj +1 more source

