Results 131 to 140 of about 343,291 (192)

On the Aromaticity in Cyclic H‐Bonded Chains: Linking HOMIA Descriptor to Molecular Properties

ChemistrySelect, Volume 11, Issue 5, 5 February 2026.
ABSTRACT Aromaticity is a central concept in organic chemistry to explain the high stability of conjugated rings. This study extends this concept to cyclic hydrogen‐bonded (H‐bonded) chains by introducing a modified descriptor, the harmonic oscillator model of intermolecular aromaticity (HOMIA), to quantify aromaticity in cyclic H‐bonded chains of HCN,
Murillo H. Queiroz, Suelen A. Santos, Tiago V. Alves, Roberto Rivelino   +3 more
wiley   +1 more source

Acerca de la categoría ontológica de la sustancia química [PDF]

, 2013
El objetivo del presente artículo consistirá en identificar la categoría ontológica de sustancia que subyace al discurso y la práctica de la química macroscópica.
Lewowicz, Lucía, Lombardi, Olimpia Iris
core  

Structural and functional dissection of the WH2/DAD motif of INF2, a formin linked to human inherited degenerative disorders

The FEBS Journal, Volume 293, Issue 3, Page 825-841, February 2026.
The INF2 WH2/DAD domain, composed of hydrophobic and basic regions, forms a single α‐helix in solution. The hydrophobic segment is essential for INF2 function, as its deletion disrupts actin dynamics and causes nuclear abnormalities, like those seen in pathogenic INF2 DID variants. In contrast, natural INF2 WH2/DAD variants found in patients with renal
Leticia Labat‐de‐Hoz, Laura Fernández‐Martín, Paula Morales, Isabel Correas, María Ángeles Jiménez, Miguel Angel Alonso   +5 more
wiley   +1 more source

Transcriptomic, proteomic and biochemical comparison of luminescent and non‐luminescent Keroplatinae larvae (Diptera: Keroplatidae)

Insect Molecular Biology, Volume 35, Issue 1, Page 34-47, February 2026.
Transcriptomic and proteomic comparison of luminescent O. fultoni and non‐luminescent Neoditomyia sp show that the substrate binding fraction (SBF) has a similar abundance of hexamerins and the presence of flavin‐dependent reductases. In addition to the high content of keroplatin, SBF also contains considerable amounts of riboflavin and displays ...
Jaqueline R. Silva, Gabriel F. Pelentir, Danilo T. Amaral, Cassius Stevani, Vadim R. Viviani   +4 more
wiley   +1 more source

Removal of Micropollutants in Water Reclamation by Membrane Filtration: Impact of Pretreatments and Adsorption

Membranes
Organic micropollutants (OMPs) present in water and wastewater are in the spotlight because of their potentially harmful effects even at low concentrations and the difficulties of their elimination in urban wastewater treatment plants (UWWTPs).
Juan C. Aldana, Cristina Agudelo, Pedro M. Álvarez, Juan L. Acero   +3 more
doaj   +1 more source

Física y Química: 1º Bachillerato [PDF]

, 2016
La existencia de materiales de trabajo valorados positivamente por quienes han de usarlos, contribuye a que el proceso de enseñanza y aprendizaje pueda desarrollarse de una manera más eficaz.
Carrascosa Alís, Jaime, Martínez Sala, Salvador, Martínez-Torregrosa, Joaquín, Ruiz Ruiz, Juan José   +3 more
core   +1 more source

Study on the influence of the metal cation incorporation in the Catalytic activity and magnetic behavior of ZSM-5 zeolites [PDF]

, 2011
Se sintetizaron zeolitas ZSM-5 con relación molar Si/Al 17 por el método hidrotérmico, las que fueron modificadas con cobalto y cromo por la técnica de impregnación por vía húmeda en un 3 % p/p del metal.
Bercoff, Paula Gabriela, Bertorello, Hector Raul, Pierella, Liliana Beatriz, Renzini, Maria Soledad, Saux, Clara   +4 more
core   +1 more source

Nutzen der 3d‐4f Koordination: Molekulares Quanten‐Feder‐Magnet‐Verhalten in axialen Ni2Ln Komplexen

Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.
Wir berichten über heterotrimetallische Ni2Ln Komplexe, die Austauschfeder‐Magnete auf molekularer Ebene nachahmen. CASSCF Rechnungen zeigen kollineare Anisotropieachsen, während µSQUID Studien langsame Relaxation und offene Hysterese in Ni2Tb, Ni2Dy, und Ni2Ho offenbaren.
Zhaoyang Jing, Eufemio Moreno‐Pineda, Sagar Paul, Appu Sunil, Olaf Fuhr, Yaorong Chen, Wolfgang Wernsdorfer, Mario Ruben   +7 more
wiley   +1 more source

Enseñando física y química con ideas quijotescas [PDF]

, 2008
Segundo Premio Nacional de Innovación Educativa 2006Proyecto para alumnos de 4õ de ESO que consiste en aplicar la Física y la Química a situaciones cotidianas del libro Don Quijote de la Mancha y a la vez practicar la lectura.
Franco-Mariscal, Antonio Joaquín
core  

Leveraging 3d‐4f Coordination: Molecular Quantum Spring‐Magnet Behavior in Axial Ni2Ln Complexes

Angewandte Chemie International Edition, Volume 65, Issue 5, 28 January 2026.
We report heterotrimetallic Ni2Ln complexes mimicking exchange spring magnets at the molecular level. CASSCF calculations show collinear anisotropy axes, while µSQUID studies reveal slow relaxation and open hysteresis in Ni2Tb, Ni2Dy, and Ni2Ho. Ferromagnetic 3d–4f coupling and anisotropy alignment enhance bistability, offering promise for quantum, and
Zhaoyang Jing, Eufemio Moreno‐Pineda, Sagar Paul, Appu Sunil, Olaf Fuhr, Yaorong Chen, Wolfgang Wernsdorfer, Mario Ruben   +7 more
wiley   +1 more source