Results 91 to 100 of about 44,043 (291)

Characterisation of Sex Pheromone and Genetic Strain in Rachiplusia nu (Lepidoptera: Noctuidae) Populations Across Brazil

Journal of Applied Entomology, EarlyView.
ABSTRACT Rachiplusia nu, known as the sunflower looper (SFL) and belonging to the Plusiinae subfamily, is a major defoliator of soybeans, sunflowers and other horticultural crops across southern South America. This species has recently expanded to central and northern regions of Brazil, becoming a key soybean pest.
Leonardo Figueiredo, Diego B. Silva, Alan V. Saldanha, Alberto S. Corrêa, Aluska T. dos Santos, Paulo H. G. Zarbin   +5 more
wiley   +1 more source

The Structure of Carboxyl Methyltransferase Provides Insights Into the Substrate Specificity and Divergent Evolution of Iridoid

Plant Biotechnology Journal, EarlyView.
ABSTRACT Iridoids constitute a prominent class of plant‐specialised metabolites, with carbocyclic iridoids (e.g., geniposide) and secoiridoids (e.g., loganin) diverging early in their biosynthetic pathways. This divergence is marked by substrate‐specific carboxyl methyltransferases—GjGAMT and CrLAMT—that catalyse the decisive methylation step in ...
Li Li, Zhiteng Luo, Zhaoyin He, Jie Tang, Wuke Wei, Ruoting Zhan, Huihao Zhou, Dongming Ma   +7 more
wiley   +1 more source

Resilience of floral scent emission after florivory

Plant Biology, EarlyView.
Florivory is thought to affect floral traits, impacting pollination. However, our data suggest a stability in post‐florivory scent emission, which may guarantee the maintenance of pollinator visitation regardless of florivory, indicating a resilience of natural systems with multiple and simultaneous interactions. Created in BioRender. Tunes, P.
P. Tunes, Y. Canaveze, S. R. Machado, S. Dötterl, E. Guimarães   +4 more
wiley   +1 more source

(6bS*,14R*,14aR*)-Methyl 14-(4-methylphenyl)-7-oxo-6b,6c,7,12b,14,14a-hexahydro-1H-pyrano[3,2-c:5,4-c′]dichromene-14a-carboxylate

Acta Crystallographica Section E, 2013
In the title compound, C28H22O6, the chromeno ring system is almost planar, with a dihedral angle between the mean planes of the pyran and benzene rings of 1.87 (8)°.
R. Ponnusamy, V. Sabari, G. Sivakumar, M. Bakthadoss, S. Aravindhan   +4 more
doaj   +1 more source

Metal-mediated intramolecular hydroamination and hydro(acy)alkoxylation reactions [PDF]

, 2012
This PhD thesis describes work undertaken to effect asymmetric catalysis in hydroamination and hydro(acy)alkoxylation reactions of allenes. The introductory Chapter provides an overview of recent advances in asymmetric heterofunctionalisation reactions ...
Arbour, Jannine Louise, Arbour, Jannine Louise   +1 more
core   +1 more source

Rh(iii)-catalyzed synthesis of dibenzo[b,d]pyran-6-ones from aryl ketone O-acetyl oximes and quinones via C–H activation and C–C bond cleavage

, 2022
Wei Yang, Haonan Zhang, Yu Liu, Cuiman Tang, Xiaohui Xu, Jiaqi Liu   +5 more
openalex   +2 more sources

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela, Raffael Silva Santos Almeida, Ivana Ferreira Simões, Aline Gonçalves Miranda, Magno Oliveira Ramos, Roberto Rodrigues Bandeira Tosta Maciel, Fernanda Warken Rosa, Aníbal de Freitas Santos Júnior   +7 more
wiley   +1 more source

Substituent-Dependent Chemoselective Synthesis of Highly Functionalized­ Benzo[h]quinolines and 4-Benzylpyrans from 2-Methyl-5-nitro-benzonitrile

SynOpen, 2018
A facile, efficient and atom-economic synthesis of highly substituted benzo[h]qninolines was established by reaction of 2-methyl-5-nitrobenzonitrile with suitably functionalized 2H-pyran-2-ones under basic conditions.
Rahul Panwar, Ranjay Shaw, Amr Elagamy, Chandan Shah, Ramendra Pratap   +4 more
doaj   +1 more source

Targeting BRCA1-BER deficient breast cancer by ATM or DNA-PKcs blockade either alone or in combination with cisplatin for personalized therapy [PDF]

, 2014
BRCA1, a key factor in homologous recombination repair may also regulate base excision repair (BER). Targeting BRCA1-BER deficient cells by blockade of ATM and DNA-PKcs could be a promising strategy in breast cancer.
Abdel-Fatah, TMA, Agarwal, D, Albarakati, N, Alsubhi, N, Arora, A, Ball, G, Caldas, C, Chan, S, Doherty, R, Ellis, IO, Green, A, Madhusudan, S, Moseley, P, Perry, C, Rakha, EA, Russell, R, Seedhouse, C   +16 more
core   +1 more source

Pixelated Laser with Tailored Emission Spectrum Photopatterned by Digital Holographic Microscopy

Advanced Optical Materials, Volume 14, Issue 17, 8 May 2026.
Azobenzene‐based surface‐relief gratings inscribed via DHM‐integrated holographic lithography enable programmable pixelated DFB laser architectures. This approach allows independent control of grating parameters across a 2D array, enabling spatially tailored emission spectra.
Sudharsana Bhashyam Pillailokam, Alex Berdin, Arri Priimagi   +2 more
wiley   +1 more source