Results 91 to 100 of about 26,885 (224)

Design, Synthesis, X‐Ray Crystallographic Characterization, Anticholinesterase and Antioxidant Evaluation, and Molecular Modeling of Novel Dispiroindene‐Pyrrolidine Derivatives as Multifunctional Anti‐Alzheimer Agents

open access: yesDrug Development Research, Volume 87, Issue 5, August 2026.
ABSTRACT A novel series of 5‐chloro‐N‐alkyl‐1′,1″‐dimethyl‐4′‐aryldispiro[indene‐2,3′‐pyrrolidine‐2′,3″‐indoline]−1,2″(3H)‐diones (4a–r) was rationally designed and synthesized via a one‐pot multicomponent reaction of N‐alkylated 5‐chloroisatin derivatives, 2‐(arylmethylidene)−2,3‐dihydro‐1H‐inden‐1‐ones (2a–i), and sarcosine (3).
Aisha A. Alsfouk   +7 more
wiley   +1 more source

Composición de las exportaciones y crecimiento económico en la Comunidad Andina de Naciones

open access: yesLecturas de Economía, 2012
Este trabajo analiza la relación entre la composición de las exportaciones y el crecimiento económico. Partiendo de la estructura desarrollada por Feder (1983) y Crespo-Cuaresma y Wörz (2005), se desarrolla un modelo con datos de panel para el periodo ...
Silvia Juliana Reyes Camargo   +1 more
doaj  

Categorical Boosting‐PSO: A SHAP‐Interpretable Hybrid Framework for High‐Fidelity Wax Appearance Temperature Prediction in Subsea Pipelines

open access: yesEngineering Reports, Volume 8, Issue 8, August 2026.
CatBoost–PSO accurately predicts wax appearance temperature from oil density, wax content, and pour point temperature, achieving R2 = 0.9760 and RMSE = 1.8106 K. External validation, SHAP interpretation, and low computational cost support rapid wax‐risk screening for subsea pipeline flow assurance.
H. M. Rayhan Rifat   +2 more
wiley   +1 more source

Temperature fluctuations controlled episodic rockfall activity in the Rwenzori Mountains (Uganda) during the Holocene

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
The alignment between rockfall deposit surface exposure 10Be ages and Holocene temperature records suggests that major rockfall events occurred episodically in response to climatic fluctuations. We conclude that temperature and its evolution enabled mechanical, chemical or bio‐chemical enhancement of fracture progression.
Audrey Margirier   +8 more
wiley   +1 more source

Effects of Exogenous Monosodium Glutamate on GABA Accumulation and Volatile/Nonvolatile Metabolites in Black Highland Barley

open access: yesFood Science &Nutrition, Volume 14, Issue 8, August 2026.
Overview of MSG‐assisted GABA enrichment and associated changes in amino acid, fatty acid, and volatile metabolite profiles in germinated black highland barley. ABSTRACT γ‐Aminobutyric acid (GABA) is a functional amino acid with multiple health benefits; however, the mechanism of its enrichment in black highland barley, particularly through precursor ...
Xiaohang Lu, Nana Ma, Yuan Wang
wiley   +1 more source

The Weak Core, Partition‐Based Universal Stability, and Their Risk Associations Through A Partial Order

open access: yesNaval Research Logistics (NRL), Volume 73, Issue 5, Page 810-835, August 2026.
ABSTRACT We are concerned with the stability of a transferable‐utility cooperative (TU) game. First, the concept of core can be weakened so that the blocking of changes is limited to only those with multilateral backings. This principle of consensual blocking, as well as the traditional core‐defining one of unilateral blocking and one straddling in ...
Jian Yang
wiley   +1 more source

Both density‐ and frequency‐dependent effects determine plant growth in a dune heath ecosystem

open access: yesOikos, Volume 2026, Issue 8, August 2026.
We tested the hypothesis that both density‐ and frequency‐dependent interactions play important roles in determining plant growth in a dune heath ecosystem at several levels of available nitrogen. Plant growth was measured using the pin‐point method in a five‐block experiment with four nitrogen levels.
Christian Damgaard   +3 more
wiley   +1 more source

Continental accumulation of fads2 copy numbers allows sticklebacks to thrive across a diversity of nutritional landscapes

open access: yesOikos, Volume 2026, Issue 8, August 2026.
Nutrients, including vital organic compounds, vary in availability across ecosystems, with the potential to act as a source of selection for traits that increase nutrient acquisition and biosynthesis. Compared to freshwaters, marine ecosystems are richer in the omega‐3 long‐chain polyunsaturated fatty acid (n‐3 LC‐PUFA) docosahexaenoic acid (DHA ...
Cornelia W. Twining   +12 more
wiley   +1 more source

Coupled Structural Characteristics Boost Brazing Performance of Ti2AlNb Alloy

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Brazing of Ti2AlNb alloy is a pivotal technique for new generation aero‐engine lightweight structures, yet developing novel filler metal and achieving the extraordinary performance of titanium alloy brazed joints remains challenging. Here, this study designed an innovative filler metal (Ti70‐xZrxCu15Ni15) and developed inspired coupled ...
Yinchen Wang   +13 more
wiley   +1 more source

Economic Diplomacy and Bilateral Trade Flows in Times of Crisis: Evidence from Croatia

open access: yesBusiness Systems Research
Economic diplomacy is widely regarded as an instrument of trade promotion, particularly for small open economies seeking to strengthen their position in international markets.
Mlinarić Danijel   +2 more
doaj   +1 more source

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