Results 71 to 80 of about 322 (154)

Technical Change Through Global Value Chains: Evidence From Firms Worldwide

The World Economy, EarlyView.
ABSTRACT We study the impact of global value chain (GVC) participation on firms' innovation, productivity, and other indicators of technical change. Our dataset encompasses heterogeneous firms from 144 countries at different income levels over the period 2006–2025.
Ivan Ledezma, Antonia López‐Villavicencio   +1 more
wiley   +1 more source

Anisotropic NMR as a Crucial Tool for Differentiation of Epimers With High Conformational Flexibility

Angewandte Chemie, Volume 138, Issue 30, 20 July 2026.
Epimer discrimination remains challenging due to subtle NMR differences. Here, we propose a methodology based on 13C‐RCSA and RDC anisotropic parameters, enabling the assignment of two flexible tetraprenyltoluquinol epimers (1a and 1b) with remote stereoclusters.
Juan Carlos C. Fuentes‐Monteverde, Abel M. Forero, Nilamoni Nath, Antonio Hernández Daranas, Carlos Jiménez, Jaime Rodríguez, Christian Griesinger   +6 more
wiley   +2 more sources

Antioxidative Response of Duckweed (Lemna minor L.) to Rhizosphere-Associated Pseudomonas Strains and Exogenous Indole-3-Acetic Acid

Horticulturae
Aquatic plants, just like terrestrial plants, are exposed to oxidative stress. However, their responses are still under-researched. In this study, we examined the physiological and antioxidative responses of an aquatic plant, duckweed (Lemna minor L ...
Tatjana Popržen, Slađana Jevremović, Snežana Milošević, Marija Đurić, Branka Uzelac, Slaviša Stanković, Olga Radulović   +6 more
doaj   +1 more source

13C Labelling of soil n-hentriacontane (C31) by maize cultivation [PDF]

Tetrahedron Letters, 1995
The fate of plant carbon into molecular organic substances from soils can be followed by stable carbon analysis. Soil organic matter has thus been progressively labelled with 13C at natural abundance by cultivation of Zea mays, a C4 plant, on a soil which was previously under isotopically distinct C3 vegetation.
openaire   +3 more sources

Lippia umbellata Cav.: Chemical Composition, Insecticidal, and Antimicrobial Activities

Chemistry &Biodiversity, Volume 23, Issue 8, August 2026.
Hexane extracts of Lippia umbellata leaves and flowers contain lupenone, α‐amyrin, and hentriacontane. They exhibit insecticidal activity against Drosophila melanogaster and inhibit AChE in vitro and in silico. Furthermore, the extracts can inhibit the growth of medically important bacteria and yeasts, including multidrug‐resistant strains.
José Guillermo Avila‐Acevedo, Miriam Arlette López‐Pérez, Ana Karen Villagómez‐Guzmán, Edgar Antonio Estrella‐Parra, Nallely Álvarez‐Santos, Israel Valencia‐Quiroz, Julieta Orozco‐Martínez, Ma. Edith López‐Villafranco, Silvia Aguilar‐Rodríguez, Carlos Leonardo Céspedes‐Acuña, Juio Alarcón‐Enos, Ana María García‐Bores   +11 more
wiley   +1 more source

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

Oikos, 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, Mathias Emil Kaae, Jacob Weiner, Jesper Leth Bak   +3 more
wiley   +1 more source

Environmental factors associated with nesting habits and age shape the composition and connection between skin and uropygial gland microbiomes of birds

Journal of Animal Ecology, Volume 95, Issue 8, Page 1435-1452, August 2026.
This study provides new insights into how ecological conditions influence the evolution of host‐associated symbiotic communities and their functional roles. The findings suggest that pathogen pressures linked to nesting habits in birds shape bacterial communities of the uropygial gland, and their connection with the skin microbiome, where the ...
Ester Martínez‐Renau, Kasun H. Bodawatta, Antonio M. Martín‐Platero, Manuel Martín‐Vivaldi, María Dolores Barón, Cristina Ruiz‐Castellano, Manuel Martínez‐Bueno, Knud A. Jønsson, Michael Poulsen, Juan José Soler   +9 more
wiley   +1 more source

Consumption patterns of organic vegetable consumers in Ghana

Cleaner and Responsible Consumption
The study examined organic vegetable attributes, consumer decisions and consumption patterns of consumers in Ghana. A sample of 399 consumers was selected using a simple random sampling technique and data was collected through structured questionnaires ...
Camillus Abawiera Wongnaa, Stephen Prah, Samuel Asare Austin, Emmanuel Agyei Amponsah, Caleb Achina, Davis Aban Ekow, Iddris Hudard Mazzola, Samuel Tweneboa Kwaku   +7 more
doaj   +1 more source

The algal homolog of the plant CER1 and CER3 proteins is a bifunctional hydrocarbon‐forming enzyme

New Phytologist, Volume 251, Issue 3, Page 1311-1328, August 2026.
Schematic representation of the proposed reactions carried out by a CER1/3 protein from green algae. CoA, coenzyme A; CTD, C‐terminal domain; Cys, catalytic cysteine of C‐terminal domain; His, catalytic histidines of N‐terminal domain; NTD, N‐terminal domain.
Ángel Baca‐Porcel, Bertrand Légeret, Alexandre Six, Mallaury Cabanel, Mathilde Le Cossec, Arthur Guegano, Damien Sorigué, Yonghua Li‐Beisson, Florian Veillet, Fred Beisson   +9 more
wiley   +1 more source

Determinants of foreign exchange reserves in sub-saharan Africa

Scientific African
Driven by the lack of literature on the nature of the association between foreign exchange reserves and institutions for Sub-Saharan Africa, this study examines the determinants of foreign exchange reserves in 19 Sub-Saharan African countries over the ...
Gaone Thabana, Ismail Fasanya
doaj   +1 more source