Results 31 to 40 of about 296,429 (339)

Intense near-infrared-II luminescence from NaCeF4:Er/Yb nanoprobes for in vitro bioassay and in vivo bioimaging

open access: yesChemical Science, 2018
We report the controlled synthesis of monodisperse NaCeF4:Er/Yb nanoprobes that exhibit intense NIR-II emission for in vitro bioassay and in vivo bioimaging.
X. Lei   +8 more
semanticscholar   +1 more source

Nitrogen and phosphorus limitation of oceanic microbial growth during spring in the Gulf of Aqaba [PDF]

open access: yes, 2009
Bioassay experiments were performed to identify how growth of key groups within the microbial community was simultaneously limited by nutrient (nitrogen and phosphorus) availability during spring in the Gulf of Aqaba's oceanic waters.
Bar-Zeev, E   +15 more
core   +3 more sources

FK 506 pre-treatment is associated with reduced levels of tumor necrosis factor and interleukin 6 following hepatic ischemia/reperfusion [PDF]

open access: yes, 1993
Using a rat model, the effect of pre-treatment with FK 506 on hepatic ischemia/reperfusion injury was investigated. All control animals died within 72 h of the ischemia/reperfusion injury.
Aarden   +64 more
core   +1 more source

Efficacy of Entomopathogenic Fungal Formulations against Elasmolomus pallens (Dallas) (Hemiptera: Rhyparochromidae) and Their Extracellular Enzymatic Activities

open access: yesToxins, 2022
Elasmolomus pallens are post-harvest insect pests of peanuts that are becoming resistant to chemical insecticides. In this, we study evaluated the effect of conidial formulations on entomopathogenic fungi against E. pallens to reduce the adverse effects.
Fredrick Fidelis Umaru, Khanom Simarani
doaj   +1 more source

Semiquantitative activity-based detection of JWH-018, a synthetic cannabinoid receptor agonist, in oral fluid after vaping [PDF]

open access: yes, 2020
The rapid proliferation of new synthetic cannabinoid receptor agonists (SCRAs) has initiated considerable interest in the development of so-called “untargeted” screening strategies.
Cannaert, Annelies   +5 more
core   +2 more sources

Bioassay analysis using R

open access: yes, 2005
We describe an add-on package for the language and environment R which allows simultaneous fitting of several non-linear regression models. The focus is on analysis of dose response curves, but the functionality is applicable to arbitrary non-linear ...
C. Ritz, J. Streibig
semanticscholar   +1 more source

Maize Apoplastic Fluid Bacteria Alter Feeding Characteristics of Herbivore (Spodoptera frugiperda) in Maize

open access: yesMicroorganisms, 2022
Maize is an important cereal crop which is severely affected by Spodoptera frugiperda. The study aims to identify endophytic bacteria of maize root and leaf apoplastic fluid with bioprotective traits against S.
Sellappan Ranjith   +3 more
doaj   +1 more source

Chemical Composition, Antioxidant and Antimicrobial Activity of Raspberry, Blackberry and Raspberry-Blackberry Hybrid Leaf Buds

open access: yesMolecules, 2021
In our investigation, the chemical composition and bioactive potential of leaf buds of raspberry, blackberry, and a raspberry-blackberry hybrid were determined.
Anna Krzepiłko   +2 more
doaj   +1 more source

New generation of electrochemical immunoassay based on polymeric nanoparticles for early detection of breast cancer [PDF]

open access: yes, 2017
Screening and early diagnosis are the key factors for the reduction of mortality rate and treatment cost of cancer. Therefore, sensitive and selective methods that can reveal the low abundance of cancer biomarkers in a biological sample are always ...
Al-Hetlani, Entesar   +5 more
core   +1 more source

The role of detoxifying enzymes in the resistance of the cowpea aphid (Aphis craccivora Koch) to thiamethoxam

open access: yesJournal of Plant Protection Research, 2016
The cowpea aphid (Aphis craccivora Koch) is considered a serious insect pest attacking several crops. We carried out biochemical studies to elucidate the role of the metabolising enzymes in conferring resistance to thiamethoxam, in two strains (resistant
Abdallah Ibrahim Saleh   +3 more
doaj   +1 more source

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