Results 51 to 60 of about 710,527 (288)

Determination of 13 Halogenated Organic Additives in Plastics of Electronic Products by Liquid Chromatography-High Resolution Mass Spectrometry

Zhipu Xuebao
Halogenic organic additives (HOAs) are widely used in plastic components of electronic products to improve product properties. Aiming at environmental and public health issues, a method of ultrasonic-assisted extraction and liquid chromatography-high ...
Rui-fen ZHENG, Yi-zhe ZHU, Ling LIU, Shi-rong MA, Jun-xian HE, Cai-ming TANG   +5 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Could Mussel Populations Be Differentially Threatened by the Presence of Microplastics and Related Chemicals?

Toxics
Mussels serve as indicators of anthropogenic chemical pollution; however, the effects of microplastics and plastic-related chemicals on their health performance remain an emerging issue. In this study, mussels were exposed to a polyamide (PA; 5 μg/L) and
Filipe Borges, Rosa Freitas, Ana L. Patrício Silva, Dulce Lucy Soliz Rojas, Gema Paniagua González, Montserrat Solé   +5 more
doaj   +1 more source

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

Appraisement and categorization of compostable and non-compostable plastic bags using HHXRF spectrophotometer, A study on brands in Islamabad

NUST Journal of Natural Sciences
Plastic bags are polymers usually composed of polypropylene, polyethylene and polystyrene. Rapid development in the industrial sector manufacturing plastic bags is imposing tremendous side effects on human health and the environment.
Syeda Hijab Zehra, Said Akbar Khan, Saad Ali, Syeda Mahnoor Zehra   +3 more
doaj   +2 more sources

Analysis of Additives in Plastics

NIPPON GOMU KYOKAISHI, 2006
Plastics usually contain several spieces of additives. In this review we presented the analytical methods for organic additives in plastics, which were published through technical papers. We described the examples of analysis in the most conventional polymers such as Polyethylene and Polyvinylchrolide.
TAKATORI, Eiichi, KAGAWA, Nobuyuki
openaire   +2 more sources

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

The behavior of statically-indeterminate structural members and frames with cracks present [PDF]

, 2009
Arts et Métiers ParisTech, invitation en tant que professeur invité de Paul C. Paris au LAMEFIPCrack stability is discussed as affected by their presence in statically-indeterminate beams, frames, rings, etc. loaded into the plastic range.
PARIS, Paul C., Paul C. Paris, PARIS, Paul Croce, PALIN-LUC, Thierry, Thierry Palin-Luc   +4 more
core   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source