Results 41 to 50 of about 9,928 (177)

PyQuiverHS: A Web Tool for Computing Isotope Effects

Journal of Physical Organic Chemistry, Volume 39, Issue 10, October 2026.
PyQuiverHS has been developed as a freely available and open‐source web tool, hosted at www.isotope‐effects.com for calculating variable‐temperature kinetic and equilibrium isotope effects with Bigeleisen–Mayer and enthalpy–entropy partitioning.
Gianmarc Grazioli, Andrew Ly, Dianoosh Sabetnejad, Anvitha Mattapalli, Calvin T. Nguyen, Daniel J. O'Leary   +5 more
wiley   +1 more source

Atividades biológicas do Protium heptaphyllum [PDF]

, 2016
Monografia realizada no âmbito da unidade de Estágio Curricular do Mestrado Integrado em Ciências Farmacêuticas, apresentada à Faculdade de Farmácia da Universidade de CoimbraEmbora não seja muito conhecido na Comunidade Internacional, Protium ...
Leitão, Tiago Nuno da Cunha Martins Pratas
core  

Investigation of H-mode density limit in mixed protium–deuterium plasmas at JET with ITER-like wall

Nuclear Materials and Energy
Analysis of comparable discharges fuelled by either deuterium or protium reveals a clear relationship between the isotope mass and the H-mode density limit.
A. Huber, G. Sergienko, M. Groth, D. Keeling, M. Wischmeier, D. Douai, E. Lerche, C. Perez von Thun, S. Brezinsek, V. Huber, A. Boboc, M. Brix, I.S. Carvalho, A.V. Chankin, E. Delabie, I. Jepu, V. Kachkanov, V. Kiptily, K. Kirov, Ch. Linsmeier, E. Litherland-Smith, C.G. Lowry, C.F. Maggi, J. Mailloux, A.G. Meigs, Ph. Mertens, M. Poradzinski, K.-D. Zastrow, M. Zlobinski   +28 more
doaj   +1 more source

Phytosociological importance of an ombrophilous forest fragment in the State of Roraima, Brazil = Importância fitossociológica de um fragmento de floresta ombrófila densa no estado de Roraima, Brasil

Agro@mbiente On-line, 2016
The aim of this study was to characterise the phytosociology of a fragment of native forest in the town of Caroebe, in the State of Roraima, Brazil. All trees with a DBH ≥ 15 cm were inventoried in 18 permanent plots of 15 x 20 m (300 m²). There were 175
Luiz Fernandes Silva Dionisio, Osmar Serra Bonfim Filho, Bruno Roberto de Souza Crivelli, Jefferson Peixoto Gomes, Marcelo Henrique Silva de Oliveira, João Olegário Pereira de Carvalho   +5 more
doaj   +1 more source

Antifungal Activities of Essential Oils from Protium ovatum Engl. Against Malassezia furfur and Candida Species

Orbital: The Electronic Journal of Chemistry, 2022
Fungal opportunistic infections have increased in recent decades due to the increase in the immunosuppressed patients and the indiscriminate use of antifungals.
Gardênia Barbosa Carrijo Rodrigues, Cassia Cristina Fernandes, Suzana Maria Loures de Oliveira Marcionilio, Vitor de Paula Castro, Carmen Magaly Alvarez, Regina Helena Pires, Mariana Brentini Santiago, Reginaldo dos Santos Pedroso, Carlos Henrique Gomes Martins, Mayker   +9 more
doaj   +1 more source

Amphiphilic Motif Triggers Microheterogeneity in Low‐Melting Mixtures

Small Structures, Volume 7, Issue 10, October 2026.
Alkylated cholinium iodides are synthesized and mixed with ethylene glycol, resulting in low‐melting mixtures (LMMs). Ammonium alkylation induces amphiphilicity and drives nanoscale segregation into charge‐rich and charge‐poor domains. Combined spectroscopic, scattering, and computational analyses reveal how headgroup alkylation and counterion effects ...
Barbara Rossi, Alessandro Mariani, Mariagrazia Tortora, László Almásy, Arianna Rossetti, Laura Riva, Alessandro Sacchetti, Maria Enrica Di Pietro, Franca Castiglione, Antonino Famulari, Alessandra Del Giudice, Matteo Tommasini, Andrea Lucotti, Barbara Kirchner, Andrea Mele   +14 more
wiley   +1 more source

First Evidence for Ozonido‐TMC Complexes of Iron and Cobalt

Angewandte Chemie International Edition, Volume 65, Issue 37, 7 September 2026.
Reaction of ozone with iron(II) complexes [(TMC)Fe(OTf)]BArF, [(D12‐TMC)Fe(OTf)]BArF, and cobalt(II) complexes [(TMC)Co(OTf)]BArF, [(D12‐TMC)Co(X)]BArF (X = OTf, F) gives ozonido and oxido complexes at temperatures as low as –155°C in a 4:1 mixture of 2‐Me‐THF and THF. ABSTRACT We present compelling evidence for the first Fe‐ and Co‐ozonido complexes: [
Stefan Schaub, Dennis Gerbig, Raffael C. Wende, Heike Hausmann, Jonathan Becker, Christian Würtele, Laura Senft, Ina Kellner, Gunasekaran Velmurugan, Marion Kerscher, Ivana Ivanović‐Burmazović, Peter Comba, Joshua Telser, Peter R. Schreiner, Siegfried Schindler   +14 more
wiley   +1 more source

Image Databases for Pollen Grain Classification: Availability, Quality, and Challenges

WIREs Data Mining and Knowledge Discovery, Volume 16, Issue 3, September 2026.
Overview of the study process, from identifying gaps in pollen image databases to a systematic search across six libraries, resulting in 73 final studies, 18 datasets (10 public), and a seven‐point standardization framework proposed under FAIR principles.
Heloise Acco Tives Bedin, Simone de Ramos, André Roberto Ortoncelli, Paula Fernandes Montanher, Patricia A. Jaques   +4 more
wiley   +1 more source

Direct experimental measurement of the solubility of hydrogen isotopes in the Eurofer-97 RAFM

Nuclear Materials and Energy
Accurate knowledge of hydrogen isotopes transport properties in structural materials of interest for Breeding Blankets (BB) and Tritium Extraction and Recovery (TER) systems is fundamental for experiments, modelling, safety and design activities.
Igor Peñalva, María Urrestizala, Natalia Alegría, Marcelo Roldán, Marta Malo   +4 more
doaj   +1 more source

Neutron Diffraction Evidence for Stress‐Induced Melting of Ice During Deformation of D2O‐Ice Ih—Fluorite Mixtures

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Water ice is an important rock‐forming mineral, both on the Earth and on various extraterrestrial bodies. Naturally occurring ice is often “dirty”–an intimate mixture with harder mineral grains, which can have significant effects on the bulk properties of the aggregate. We have used neutron powder diffraction, with in situ triaxial deformation,
Ceri A. Middleton, A. Dominic Fortes, Peter M. Grindrod, Shu Yan Zhang, Stephen J. Covey‐Crump, Peter R. Sammonds, Ian G. Wood, David P. Dobson, Lidunka Vočadlo, Simon A. Hunt   +9 more
wiley   +1 more source