Results 21 to 30 of about 544,457 (268)

Resource Preservability [PDF]

open access: yesQuantum, 2020
Resource theory is a general, model-independent approach aiming to understand the qualitative notion of resource quantitatively. In a given resource theory, free operations are physical processes that do not create the resource and are considered zero-cost.
openaire   +5 more sources

Is letrozole during ovarian stimulation useful in breast cancer patients undergoing fertility preservation to reduce early luteal progesterone levels following GnRH-agonist trigger?

open access: yesReproductive Biology and Endocrinology, 2022
Background In absence of contraindication, breast cancer patients of reproductive age can undergo fertility preservation with controlled ovarian stimulation for oocyte/embryo cryopreservation before the administration of potentially gonadotoxic ...
Imane Lalami   +8 more
doaj   +1 more source

Inhibition of lactic acid bacteria and bacillus sp. growth in cheese and meat products due to effect of polymer packaging film with incorporated nisin

open access: yesCzech Journal of Food Sciences, 2004
Active packaging systems based on the application of packaging materials with incorporated and/or immobilized antimicrobial agents provides one of promising trends in food processing.
O. Krejčová   +3 more
doaj   +1 more source

Phloridzin as a marker for evaluation of fruit products authenticity

open access: yesCzech Journal of Food Sciences, 2021
: Phloridzin (phloretin-2'-O-glucoside) is a phenolic compound characteristic of the genus Malus. This study aimed to evaluate phloridzin as a marker of undeclared addition of apples in fruit products.
Magdaléna Hrubá   +7 more
doaj   +1 more source

Investigation of bisphenol a diglycidyl ether, bisphenol f diglycidyl ether and their hydroxy and chlorohydroxy derivatives stability in water-based food simulants

open access: yesCzech Journal of Food Sciences, 2004
Varnishes used as the inner coatings of food cans are often based on epoxy resins or vinylic organosols. The epoxy resins can be produced from bisphenol A (BPA) and bisphenol F (BPF) and they also contain bisphenol A diglycidyl ether (BADGE) of bisphenol
I. Poustková   +3 more
doaj   +1 more source

4-t-Butylbenzylation of carboxylic acid for GC–MS analysis

open access: yesSN Applied Sciences, 2020
We report a 4-t-butylbenzyl derivatization for the analysis of carboxylic acids by GC–MS (EI). Carboxylic acids were analyzed as a 4-t-butylbenzyl ester after the derivatization with 4-t-butylbenzyl bromide. On the mass spectra of 4-t-butylbenzyl ester, [
Shinji Tsunoi   +5 more
doaj   +1 more source

Determination of vinyl chloride monomer in food contact materials by solid phase microextraction coupled with gas chromatography/mass spectrometry

open access: yesCzech Journal of Food Sciences, 2003
The present study concerns the optimisation of the headspace solid phase microextraction (HS/SPME) combined with gas chromatography/mass spectrometry (GC/MS) for the vinyl chloride monomer determination.
I. Jordáková   +3 more
doaj   +1 more source

Preservation Is Not a Place

open access: yesInternational Journal of Digital Curation, 2009
The Digital Preservation Program of the California Digital Library (CDL) is engaged in a process of reinvention involving significant transformations of its outlook, effort, and infrastructure. This includes a re-articulation of its mission in terms of digital curation, rather than preservation; encouraging a programmatic, rather than a project ...
Stephen Abrams   +2 more
openaire   +9 more sources

Determination of bisphenol A, bisphenol F, bisphenol A diglycidyl ether and bisphenol F diglycidyl ether migrated from food cans using Gas Chromatography-Mass Spectrometry

open access: yesCzech Journal of Food Sciences, 2003
Varnishes used for the inner coatings of food cans are mostly based on epoxy resins or vinylic organosols. The epoxy resins are produced from bisphenol A and bisphenol F and they also contain BADGE or BFDGE as stabilising components.
I. Jordáková   +3 more
doaj   +1 more source

Digitally Endangered Species: The BitList

open access: yesKULA, 2018
The Digital Preservation Coalition (DPC) is a not-for-profit professional membership organisation that enables its members to deliver resilient long-term access to digital content and services, helping them to derive enduring value from digital assets ...
Sarah Middleton, William Kilbride
doaj   +1 more source

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