Results 21 to 30 of about 725,129 (303)

The Introduction of the Radical Cascade Reaction into Polymer Chemistry: A One-Step Strategy for Synchronized Polymerization and Modification

open access: yesiScience, 2020
Summary: Polymerization and modification play central roles in polymer chemistry and are generally implemented in two steps, which suffer from the time-consuming two-step strategy and present considerable challenge for complete modification.
Nengbo Zhu   +7 more
doaj   +1 more source

A preliminary transcriptomic approach to elucidate post harvest ripening of plum fruit [PDF]

open access: yes, 2010
The aim of the present study was to dissect common and/or diverse mechanisms regulating plum (Prunus salicina) fruit ripening in genotypes characterized by different patterns of ethylene production. Fruit of an ethylenesuppressed cultivar ('Shiro') and a
Bonghi, Claudio   +2 more
core   +2 more sources

Poly Vinyl Chloride Additives and Applications - A Review

open access: yesJournal of Risk Analysis and Crisis Response (JRACR), 2022
A Pure polyvinyl chloride (PVC) is a white, brittle material and it is the third-largest polymers produced after polyethylene and polypropylene as 40 million tons of PVC are produced yearly.
Abdallah S. Elgharbawy
doaj   +1 more source

Response Mechanisms of “Hass” Avocado to Sequential 1–methylcyclopropene Applications at Different Maturity Stages during Cold Storage

open access: yesPlants, 2022
1–Methylcyclopropene (1–MCP) is used for extending the postharvest life of the avocado during storage. Evaluated the effect of 1–MCP application at different times after harvest, i.e., 0, 7, 14, and 21 d at 5 °C, to identify the threshold of the ethylene
Daniela Olivares   +7 more
doaj   +1 more source

Iron-catalyzed carboazidation of alkenes and alkynes

open access: yesNature Communications, 2019
Carboazidation of alkenes and alkynes holds the promise to construct valuable, functionalized molecules. Here, the authors report a general and efficient iron-catalyzed carboazidation of both alkenes and alkynes enabled by t-butyl perbenzoate.
Haigen Xiong   +7 more
doaj   +1 more source

Abscisic acid biosynthesis, metabolism and signaling in ripening fruit

open access: yesFrontiers in Plant Science, 2023
Fruits are highly recommended nowadays in human diets because they are rich in vitamins, minerals, fibers and other necessary nutrients. The final stage of fruit production, known as ripening, plays a crucial role in determining the fruit’s quality and ...
Wei Wu   +6 more
doaj   +1 more source

Hydrogen Absorption Properties of Metal-Ethylene Complexes [PDF]

open access: yes, 2007
Recently, we have predicted [Phys. Rev. Lett. 97, 226102 (2006)] that a single ethylene molecule can form stable complexes with light transition metals (TM) such as Ti and the resulting TMn-ethylene complex can absorb up to ~12 and 14 wt % hydrogen for n=
D. Frenkel   +7 more
core   +4 more sources

Genome-Wide Identification and Expression Analysis of 1-Aminocyclopropane-1-Carboxylate Synthase (ACS) Gene Family in Chenopodium quinoa

open access: yesPlants, 2023
Ethylene plays an important role in plant development and stress resistance. The rate-limiting enzyme in ethylene biosynthesis is 1-aminocyclopropane-1-carboxylic acid synthase (ACS). C. quinoa (Chenopodium quinoa) is an important food crop known for its
Lu Yin   +7 more
doaj   +1 more source

Biomarkers of postharvest resilience: unveiling the role of abscisic acid in table grapes during cold storage

open access: yesFrontiers in Plant Science, 2023
Table grapes are considered non-climacteric fruit, not showing a rapid increase in respiration rate and ethylene production during ripening. Previous research has suggested that abscisic acid (ABA) may have a more crucial role in grape postharvest ...
Ángela Navarro-Calderón   +3 more
doaj   +1 more source

Assigning the Absolute Configurations of Chiral Primary Amines Based on Experimental and DFT-Calculated 19F Nuclear Magnetic Resonance

open access: yesFrontiers in Chemistry, 2019
In this work, a novel method for assigning the absolute configuration of a chiral primary amine has been developed based on the experimental and DFT-calculated 19F NMR chemical shift differences of its derived two fluorinated amides by reacting with two ...
Shiwei Yang   +6 more
doaj   +1 more source

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