Results 121 to 130 of about 61,869 (266)

Sediaan Biji Barringtonia Asiatica: Aktivitas Pada Hama Kubis Crocidolomia Pavonana Di Laboratorium Dan Keefektifan Di Lapangan [PDF]

open access: yes, 2010
Preparation of Barringtonia asiatica: insecticidal activity against Crocidolomia pavonana on laboratory and effectiveness on field. The objectives of this study were to evaluate the insecticidal and anti-oviposition activity of ethanol seed extract of ...
Syahputra, E. (Edy)
core  

Sanitary Logging in the Monarch Butterfly Biosphere Reserve: One Problem, One Legislation but Different Criteria and Different Treatments

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Bark beetles are small insects that inhabit the bark of trees. When their population increases excessively, they can weaken the trees and cause their death. In México, federal regulations obligate forest landowners to carry out sanitary logging to control bark beetle outbreaks in adherence to official procedures.
Erika Gómez‐Pineda   +3 more
wiley   +1 more source

Effect of Anabaena sp. PCC7120 on the Tolerance of Rice (Oryza sativa L. cv Maratelli) Seedlings Against Lindane

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Lindane (γ‐hexachlorocyclohexane, γ‐HCH) is a broad‐spectrum pesticide widely used since the 1950s until its inclusion in the Stockholm Convention list of Persistent Organic Pollutants (POPs) in 2009, together with other HCH isomers. The high persistence and mismanagement of the toxic wastes generated during its synthesis have led to serious ...
Giuliana Oriana Morabito   +4 more
wiley   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt   +4 more
wiley   +1 more source

Identifying knowledge gaps about context dependency in freshwater species invasions

open access: yesOikos, EarlyView.
The abiotic template of freshwater ecosystems is being altered by human activity on a global scale, often promoting the establishment of new invasive taxa and increasing the likelihood of facilitation between invaders. These positive interactions represent a substantive threat to freshwater ecosystems by promoting the establishment and persistence of ...
Samuel F. Fritz   +10 more
wiley   +1 more source

Biological characterization of Photorhabdus spp. and evaluation of the insecticidal and antibiotic action of cell suspension and extracts

open access: yesEvidência
This study identified and investigated the insecticidal and antimicrobial properties of symbiotic bacterial strains isolated from entomopathogenic nematode (EPN).
Cássia de Fátima Pereira de Brito   +8 more
doaj   +1 more source

Modifying Antibiotic Activity of Synthetic Thiadiazine Analogs Against MDR Bacteria and ADMET Analysis

open access: yesChemistryOpen, EarlyView.
The study demonstrated that thidiazine compounds potentiated the action of antibiotics. The compounds associated with norfloxacin against S. aureus showed greater significance in relation to the other medications. The indiscriminate use of antibiotics has led to the selection of resistant bacterial strains, significantly reducing the effectiveness of ...
João Arthur de Oliveira Borges   +15 more
wiley   +1 more source

Comprehensive Insights into Natural Bioactive Compounds: From Chemical Diversity and Mechanisms to Biotechnological Innovations and Applications

open access: yesChemistryOpen, EarlyView.
Natural products derived from plants, animals, fungi, bacteria, and minerals contain diverse bioactive classes such as alkaloids, flavonoids, terpenoids, saponins, tannins, and phenolics. These natural products work through different mechanisms, including ROS inhibition, NF‐κB suppression, and cytokine regulation, and exhibit wide applications across ...
Sajid Ali   +4 more
wiley   +1 more source

BIOLOGICAL ACTIVITY OF AROYLHYDRAZIDES 1,4-DICARBOXYLIC ACIDS

open access: yesРазработка и регистрация лекарственных средств, 2019
Anthelmintic, insecticidal activities and influence on hemostasis of aroylhydrazides 1,4-dicarboxylic acids were investigated. Anthelmintic activity was investigated for 8 compounds, including three substances showed effect that exceed effect of the ...
N. V. Kolotova, A. V. Starkova
doaj  

Efficient One‐Pot Synthesis of Benzothiazole Compounds From Vinamidinium Salts

open access: yesChemistryOpen, EarlyView.
A catalyst‐free one‐pot reaction of vinamidinium salts with benzothiazole hydrazines efficiently produces 1,3‐bis((3‐methylbenzo[d]thiazol‐2(3H)‐ylidene)hydrazineylidene)propan‐2‐ol (BBTA) and 1‐((1Z,3E)‐1‐(dimethylamino)‐3‐(((Z)‐3‐methylbenzo[d]thiazol‐2(3H)‐ylidene)hydrazineylidene)prop‐1‐en‐2‐yl)pyridin‐1‐ium (DMBT) derivatives.This simple method ...
Zeinab khosravi   +4 more
wiley   +1 more source

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