Results 61 to 70 of about 193,280 (312)

A strong immune response in young adult honeybees masks their increased susceptibility to infection compared to older bees [PDF]

open access: yes, 2012
Honeybees, Apis mellifera, show age-related division of labor in which young adults perform maintenance ("housekeeping") tasks inside the colony before switching to outside foraging at approximately 23 days old. Disease resistance is an important feature
Baxter, Laura   +8 more
core   +4 more sources

Metabologenomic Hallmark‐Based Discovery of Bacterial Thioamides as a New Lead against Drug‐Resistant Pancreatic Cancer

open access: yesAdvanced Science, EarlyView.
A targeted metabologenomic strategy integrating genomic and metabolomic hallmarks enabled the discovery of two new thioamides, thiogochangamides A and B, from bacteria. Their absolute configurations, previously unresolved within the thioviridamide family, were fully assigned through various chemical derivatizations and computational analysis ...
Young Eun Du   +18 more
wiley   +1 more source

Development and calibration of a portable detection device for in vivo measurement of high-energy photon emitters incorporated by humans

open access: yesBrazilian Journal of Radiation Sciences, 2018
This work presents the evaluation of the applicability and sensitivity of a portable detection device specially designed for in vivo measurement of high-energy photon emitters in the human body.
Alexandre Barbosa Soares   +4 more
doaj   +1 more source

Monitoring resistance of Cydia pomonella (L.) Spanish field populations to new chemical insecticides and the mechanisms involved [PDF]

open access: yes, 2017
BACKGROUND: A widespread resistance of Cydia pomonella to organophosphates was demonstrated in populations from the Spanish Ebro Valley area that showed high levels of enzymatic detoxification.
Avilla Hernández, Jesús   +2 more
core   +3 more sources

Plant Genetic Engineering: Technological Pathways, Application Scenarios, and Future Directions

open access: yesAdvanced Science, EarlyView.
This review maps the fast‐evolving landscape of plant genetic engineering, linking enabling platforms with trait‐focused applications in architecture optimization, stress resilience, yield improvement, and quality enhancement. It highlights how genome editing, transgenic strategies, and emerging multi‐gene approaches reshape breeding pipelines, while ...
Peilin Wang   +4 more
wiley   +1 more source

Using UPLC–MS/MS to Evaluate the Dissemination of Pyriproxyfen by Aedes Mosquitoes to Combat Cryptic Larval Habitats after Source Reduction in Kaohsiung in Southern Taiwan

open access: yesInsects, 2020
The policy regarding mosquito control strategies in Taiwan is based on integrated vector management (IVM). The major approach is source reduction via collaboration by both residents and governments.
Ying-An Chen   +5 more
doaj   +1 more source

Studies on Resistance to Vegetative (Vip3A) and Crystal (Cry1A) Insecticidal Toxins of Bacillus thuringiensis in Heliothis virescens (Fabricius) [PDF]

open access: yes, 2009
Bacillus thuringiensis (Bt) toxins expressed in commercial transgenic crop varieties are all δ-endotoxins (Cry toxins) but the identification of novel vegetative insecticidal proteins (Vip toxins) has extended the range of insecticidal proteins derived
Pickett, Brian R, Pickett, Brian R
core   +1 more source

Ammonia Detoxification Inhibits Liver Metastasis by Reshaping Hepatic Microenvironment

open access: yesAdvanced Science, EarlyView.
Liver metastasis diverts aspartate into hyperactive pyrimidine synthesis, disrupting urea cycling and causing pathogenic ammonia accumulation. Ammonia dually reprograms the microenvironment by: (1) activating hepatic stellate cells (HSCs) into pro‐fibrotic metastasis‐associated fibroblasts (MAFs), and (2) suppressing anti‐tumor monocytes/macrophages ...
Sumin Sun   +5 more
wiley   +1 more source

Dual Covalent Targeting of STING Cysteines 292/309 Disrupts Functional Oligomerization and Enables Potent Antagonist Development

open access: yesAdvanced Science, EarlyView.
We report a rational design strategy for STING antagonists by dual covalent targeting of Cys292/309 in its C‐terminal domain, directly preventing functional oligomerization. Through covalent warhead repurposing, we identified P005091 and revealed its unique dual‐cysteine mechanism.
Yuxuan Zhao   +23 more
wiley   +1 more source

Assessment of cytotoxicity of some synthetic compounds against breast carcinoma spheroids with subsequent analysis of pro-apoptotic and gene expression

open access: yesScientific Reports
The current study examined the anticancer potential of 80 synthetic organic compounds at 50µM using in vitro two-dimensional (2D) and three-dimensional (3D) spheroids model breast adenocarcinoma (MCF7) models.
Khaled Mahmoud   +3 more
doaj   +1 more source

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