Results 81 to 90 of about 30,589 (307)

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

The Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová, Blanka Jirkovská, Martin Čapek Adamec, Jan Havlík, Petr Holzhauser, Daniela Nováková, Karel Němejc   +6 more
wiley   +1 more source

Nanofiber PVA‐Based Membranes Incorporating Functionalized Spanish Broom Derivatives for Sustainable Water Purification

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando, Silvia Sfameni, Jozefien Geltmeyer, Alessandra Palella, Lorenzo Spadaro, Alberto Riminucci, Karen De Clerck, Maria Rosaria Plutino   +7 more
wiley   +1 more source

Cytotoxicity of 19 Pesticides in Rainbow Trout Gill, Liver, and Intestinal Cell Lines

Environmental Toxicology and Chemistry, EarlyView.
Abstract The rainbow trout gill cell line (RTgill‐W1), via test guideline 249 of the Organisation for Economic Co‐operation and Development, has been established as a promising New Approach Methodology, although to advance confidence in the method more case studies are needed that: 1) expand our understanding of applicability domains (chemicals with ...
Sophie Emberley‐Korkmaz, Krittika Mittal, Na'im Temlock, Jessica Head, Niladri Basu   +4 more
wiley   +1 more source

Development and Perfection of Marine-Based Insecticide Biofilm for Pea Seed Protection: Experimental and Computational Approaches

Molecules
This work aims to develop an insecticidal biofilm based on Calothrixin A, collagen, and chitosan for the protection of pea seeds. The main objective is to improve the ingredient concentrations maximizing the insecticidal activity of the biofilm and to ...
Fatouma Mohamed Abdoul-Latif, My Ismail El Mhamdi, Ayoub Ainane, Ali Merito Ali, Khadija Oumaskour, Sanaa Cherroud, Stefano Cacciatore, Tarik Ainane   +7 more
doaj   +1 more source

Carvacrol Derivatives with Potential Insecticidal Activity

, 2020
Three new carvacrol derivatives 1–3 possessing aliphatic carbon chains with different sizes as hydroxyl group substituents were synthesized in order to evaluate their insecticidal activity against the insect cell line Sf9 (Spodoptera frugiperda)
Castanheira, Pereira, Natal, Fernandes, Gonçalves, Fortes   +5 more
core   +1 more source

Optimising the Eco‐Friendly Extraction of Carotenoids From Gac Fruit: A Sustainable Solution for Natural Red Food Colourants

Food Chemistry International, EarlyView.
Gac fruit's high carotenoid content, especially in the aril, makes it an excellent natural red pigment source for food applications, offering a safer alternative to synthetic dyes. Ethanol extraction achieved the highest overall pigment recovery (89.53%), whereas ethyl lactate extraction yielded the highest levels of total carotenoids, β‐carotene ...
N. Netravati, S. Gomez, B. Pathrose, A. Suma, J. Hosamani   +4 more
wiley   +1 more source

Unlocking the Multifunctional Properties of Litsea cubeba Essential Oil: Composition, Antimicrobial, Antibiofilm and Insecticidal Activities

Flavour and Fragrance Journal, EarlyView.
Unveiling the chemical and biological properties of Litsea cubeba essential oil. ABSTRACT Litsea cubeba essential oil (LCEO) is recognised for its broad spectrum of biological activities, including antimicrobial and insecticidal effects, making it a promising natural alternative to synthetic agents.
Miroslava Kačániová, Minhang Qiao, Alessandro Bianchi, Joel Horacio Elizondo‐Luevano, Anis Ben Hsouna, Rania Ben Saad, Zhaojun Ban, Li Li, Jian Lou, Wissem Mnif, Stefania Garzoli   +10 more
wiley   +1 more source

Multifunctional Properties of Wintergreen (Gaultheria procumbens) Essential Oil: Antimicrobial, Antibiofilm, and Insecticidal Effects

Flavour and Fragrance Journal, EarlyView.
Unveiling the potential of Wintergreen (Gaultheria procumbens) essential oil. ABSTRACT This study investigated the antimicrobial, antibiofilm, and insecticidal properties of wintergreen (Gaultheria procumbens L.) essential oil (GPEO). The EO was chemically characterized by GC–MS, confirming methyl salicylate as the predominant compound (99.3%).
Miroslava Kačániová, Minhang Qiao, Alessandro Bianchi, Joel Horacio Elizondo‐Luevano, Anis Ben Hsouna, Rania Ben Saad, Zhaojun Ban, Li Li, Jian Lou, Wissem Mnif, Stefania Garzoli   +10 more
wiley   +1 more source

Structural Derivatives of β-Asarone from Acorus calamus Linn. as Insecticide Candidates and the Insecticidal Mechanism Against Small Brown Planthopper

Agronomy
The small brown planthopper (SBPH), Laodelphax striatellus (Fallén) (Hemiptera: Delphacidae), is an increasing threat to Gramineae crops, posing significant risks to both the environment and food safety.
Aiyu Wang, Yun Zhou, Xiaochen Fu, Xin Wang, Yinjie Cheng, Yifei Zhang, Xiuwen Jia, Yanwei Zhu, Yun Zhang, Chao Xue, Chenggang Shan, Ming Zhao, Yuanxue Yang, Jianhua Zhang   +13 more
doaj   +1 more source

Insecticidal activity of fresh and dry pyrethrum flowers

, 1965
RESP ...
Godin, P. J., Inglis, H. S., Stevenson, J. H.   +2 more
core   +1 more source