Results 81 to 90 of about 47,678 (217)

Extended and Reshetikhin Twists for sl(3)

open access: yes, 1999
The properties of the set {L} of extended jordanian twists for algebra sl(3) are studied. Starting from the simplest algebraic construction --- the peripheric Hopf algebra U_ P'(0,1)(sl(3)) --- we construct explicitly the complete family of extended ...
Ballesteros A   +23 more
core   +1 more source

Novel Application of UHPLC–MS, HRMS, and 2D‐NMR for Structural Elucidation of Eletriptan Hydrobromide and Its Novel Degradation Products

open access: yesBiomedical Chromatography, Volume 40, Issue 2, February 2026.
ABSTRACT A stability‐indicating UHPLC–MS method was developed to investigate the stress degradation behavior of eletriptan hydrobromide under ICH‐recommended acidic, alkaline, neutral, oxidative, thermal, and photolytic conditions. Significant degradation was observed only under acidic and oxidative stress.
Dastagiri Reddy Bhuma   +3 more
wiley   +1 more source

Allocating Income from Targeting Subsidy to the Production Sectors: Distributional Impacts of Different Alternatives for the Iranian Households [PDF]

open access: yesپژوهشهای اقتصادی, 2014
This study investigates alternative options for allocating incomes from targeting subsidy program to different production sectors and its consequences on income distribution among Iranian households.
Vahideh Ansari, Habibollah Salami
doaj  

Total Synthesis and Complete Stereochemical Assignment of Amphirionin‐5, a Potent Natural Osteoblasts Proliferator

open access: yesChemistryEurope, Volume 4, Issue 2, February 2026.
The convergent total synthesis of a candidate diastereomer of amphirionin‐5 was accomplished in 22 steps via the coupling of the C1‐C16 enone segment and the C17‐C28 aldehyde segment using Stetter reaction. The overall stereochemistry of amphirionin‐5 was fully assigned, based on the comparison of spectroscopic and chiroptical data between the ...
Yusuke Ogura   +7 more
wiley   +1 more source

Equivalences of Zt×Z22-cocyclic Hadamard matrices [PDF]

open access: yes, 2015
One of the most promising structural approaches to resolving the Hadamard Conjecture uses the family of cocyclic matrices over Zt × Z2 2. Two types of equivalence relations for classifying cocyclic matrices over Zt × Z2 2 have been found.
Gudiel Rodríguez, Félix   +4 more
core  

Reaction-Diffusion Processes from Equivalent Integrable Quantum Chains

open access: yes, 1997
One-dimensional reaction-diffusion systems are mapped through a similarity transformation onto integrable (and a priori non-stochastic) quantum chains. Time-dependent properties of these chemical models can then be found exactly.
Albertini   +68 more
core   +1 more source

Minimal Mass Matrices for Dirac Neutrinos

open access: yes, 2005
We consider the possibility of neutrinos being Dirac particles and study minimal mass matrices with as much zero entries as possible. We find that up to 5 zero entries are allowed.
A.Y. Smirnov   +30 more
core   +1 more source

Evaluation of Process Parameters for Integrated CO2 Electrolysis to Produce Ethylene

open access: yesChemistryOpen, Volume 15, Issue 2, February 2026.
This work systematically explores how flow rate, pressure, and temperature influence ethylene selectivity in integrated CO2 electrolysis with a potassium carbonate absorbent. Findings reveal that higher catholyte flow rates improves Faraday efficiency for ethylene by overcoming mass transport barriers, while increased pressure or temperature does not ...
Fabian Hauf   +3 more
wiley   +1 more source

General Form of Color Charge of the Quark

open access: yes, 2013
In Maxwell theory the constant electric charge e of the electron is consistent with the continuity equation $\partial_\mu j^\mu(x)=0$ where $j^\mu(x)$ is the current density of the electron where the repeated indices $\mu=0,1,2,3$ are summed. However, in
Nayak, Gouranga C.
core   +1 more source

Polymer‐Assisted Direct and Rapid Microwave Synthesis of Mesoporous Binary and Ternary Metal Oxides for Electrocatalytic Water Oxidation

open access: yesSmall, Volume 22, Issue 8, 6 February 2026.
A novel direct and facile microwave synthesis route to prepare mesoporous binary and ternary metal oxides with P‐123® as porogen is presented. NiFe2O4 is applied in alkaline Oxygen Evolution Reaction (OER) and shows improved performance in comparison to nanoparticular and Evaporation Induced Self‐Assembly (EISA)‐derived mesoporous NiFe2O4.
Jasmin Helgert   +3 more
wiley   +1 more source

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