Results 41 to 50 of about 912,950 (273)

Scientific Opinion on re‐evaluation of calcium carbonate (E 170) as a food additive

open access: yesEFSA Journal, 2011
The Panel on Food Additives and Nutrient Sources added to Food provides a scientific opinion re‐evaluating the safety of calcium carbonate (E 170). Calcium carbonate is an inorganic salt authorised as a food additive in the EU, and is also included in ...
EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS)
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Effect of Strength Enhancement of Soil Treated with Environment-Friendly Calcium Carbonate Powder

open access: yesThe Scientific World Journal, 2014
This study aims to investigate the effects of the strength improvement of soft ground (sand) by producing calcium carbonate powder through microbial reactions. To analyze the cementation effect of calcium carbonate produced through microbial reaction for
Kyungho Park, Sangju Jun, Daehyeon Kim
doaj   +1 more source

The effect of water softening calcium carbonate on the fluting paper properties from OCC and NSSC [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2017
As a result of water treatment and during the water softening and hardness reducing process, calcium carbonate deposits with other impurities produced, collected and buried as mineral sludge. This study was done to investigate the effect of using calcium
Mina Akbari   +2 more
doaj   +1 more source

Co-Deposition Mechanisms of Calcium Sulfate and Calcium Carbonate Scale in Produced Water

open access: yesCrystals, 2021
Co-precipitation of mineral-based salts during scaling remains poorly understood and thermodynamically undefined within the water industry. This study focuses on investigating calcium carbonate and calcium sulfate mixed precipitation in scaling.
Yan Yan   +6 more
doaj   +1 more source

Transcriptional profiling of circulating extracellular vesicles from prebiopsy prostate cancer patients

open access: yesMolecular Oncology, EarlyView.
RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner   +14 more
wiley   +1 more source

The anomalous effect of high-intensity ultrasound on paper fibre-filler combinations [PDF]

open access: yes, 2009
The purpose of this paper is to explore the previously unreported phenomenon in which changes occur to the particle size distributions of calcium carbonate fillers, used in papermaking, when exposed to high intensity ultrasound.
Thompson, Robert   +2 more
core   +1 more source

Calcium carbonate supplementation causes memory impairment in mice

open access: yesAsian Pacific Journal of Tropical Medicine, 2018
Objective: To investigate the influence of calcium carbonate supplementation on cognitive function in mice. Methods: Mice were fed diets containing 1.0% calcium carbonate for 8 weeks, following which they were evaluated for memory function using object ...
Yasushi Hasegawa   +2 more
doaj   +1 more source

Calcium carbonate instead of cornstarch as the releasing agent for powder-free surgery gloves [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
This research investigated the feasibility of replacing cornstarch with calcium carbonate in surgery glove manufacturing. Cornstarch in slurry form is currently used as the releasing agent in order to prevent the gloves from sticking to the formers, to
Piyachat Wattanachai
doaj   +1 more source

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