Results 31 to 40 of about 215,068 (138)

Mechanisms for the Spin‐State Switching of Strapped Ni‐Porphyrin Complexes Deposited on Metal Surfaces: Insights from Quantum Chemical Calculations

open access: yesSmall, Volume 21, Issue 2, January 15, 2025.
State‐of‐the‐art quantum chemistry methods are used to characterize the spin switching of strapped Ni porphyrin molecules deposited on Ag(111) surface. The LS and HS states are related by a vertical shift of the pyridine ligand, that modifies the Ni coordination number and promotes the spin transition. The voltage‐dependent spin switching is related to
Nicolás Montenegro‐Pohlhammer   +3 more
wiley   +1 more source

A difusão da indústria nuclear: considerações preliminares aos programas latino-americanos [PDF]

open access: yesBrazilian Journal of Political Economy
RESUMO A difusão da tecnologia nuclear significa mais o desenvolvimento de uma grande rede de atividades (por exemplo, bens de capital, construção, indústrias metalúrgicas e químicas) do que um caminho para a solução de problemas energéticos.
CESARE G. GALVAN
doaj   +1 more source

The rejection of conflict in the western normative horizon and the consequent construction of Bashar al-Assad as a foe [PDF]

open access: yes, 2015
El objetivo del siguiente artículo es analizar la construcción discursiva que los líderes políticos de Estados Unidos, Francia, y Reino Unido llevaron a cabo respecto al presidente sirio Bashar al-Asad en el contexto de los dos primeros años de la ...
Estébanez, José Francisco   +1 more
core   +1 more source

Land Use Change Consistently Reduces α‐ But Not β‐ and γ‐Diversity of Bees

open access: yesGlobal Change Biology, Volume 31, Issue 1, January 2025.
We analyzed a global dataset of 3117 bee assemblages across 157 studies to assess how bee diversity varies among natural, agricultural, and urban habitats. We measured diversity using both the number of bee taxa (taxonomic diversity) and their evolutionary relationships (phylogenetic diversity).
Toby P. N. Tsang   +143 more
wiley   +1 more source

Las armas de destrucción masiva como mecanismo de confrontación de las FARC en Colombia [PDF]

open access: yes, 2013
El presente ensayo permitirá conocer cuales son las Armas de Destrucción Masiva ADM y sus antecedentes mundiales. El origen de las Fuerzas Armas Revolucionarias de Colombia FARC y su actuación ilegal en Colombia donde han hecho uso de armas prohibidas a ...
Hernández Díaz, Julián Enrique
core  

Understanding the Reverse Water Gas Shift Reaction over Mo2C MXene Catalyst: A Holistic Computational Analysis

open access: yesChemCatChem, Volume 16, Issue 15, August 12, 2024.
The catalytic performance of Mo2C MXene for reverse water gas shift (RGWS) reaction is computationally assessed on an holistic fashion, unveiling the reaction mechanism and its thermodynamics through density functional theory (DFT) calculations on suitable models, and gaining information about kinetics, and dynamics aspects by means of mean‐field ...
Daniel Dolz   +6 more
wiley   +1 more source

Abstracts

open access: yesMolecular Oncology, Volume 19, Issue S1, Page 1-940, June 2025.
Abstracts submitted to the ‘EACR 2025 Congress: Innovative Cancer Science’, from 16–19 June 2025 and accepted by the Congress Organising Committee are published in this Supplement of Molecular Oncology, an affiliated journal of the European Association for Cancer Research (EACR).
wiley   +2 more sources

El futuro protocolo de La Convención sobre Armas Biológicas: repercusiones para el sector industrial [PDF]

open access: yes, 2003
En abril de 2001 se aprobaba el borrador definitivo del Protocolo de la Convención para la prohibición del desarrollo, la producción y el almacenamiento de armas bacteriológicas (biológicas) y toxínicas y sobre su destrucción (1972), que obliga a aplicar
Cervell Hortal, María José
core  

Hegemonics constraints : the implications of 11 September for American power, by Evelyn Koh ; Terrorist use of weapons of mass destruction : how serious is the threat?, by Andrew O’Neil, [PDF]

open access: yes, 2003
Reseña de dos artículos publicados en: Australian Journal of International Affairs, Vol. 57, Nº 1, April 2003, p.
Cave Schnöhr, Rose
core   +2 more sources

Homogeneous microenvironmental conditions under nurses promote facilitation

open access: yesFunctional Ecology, Volume 38, Issue 2, Page 350-362, February 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Biotic interactions are highly affected by species traits and micro‐environmental variability. Research on facilitation has primarily focused on how nurse species alleviate abiotic stress for beneficiary species, while the impact of the micro‐environmental variability ...
Ricardo Sánchez‐Martín   +6 more
wiley   +1 more source

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