Results 41 to 50 of about 189,015 (264)

Review on metal contamination in equatorial estuaries in the Brazilian Northeast

Frontiers in Earth Science, 2023
The present study provides an overview and assessment of the metals and trace metals registered in water, sediment, and biota in estuaries of the Equatorial Zone of the Brazilian Northeast (EZBN). The study aims to compare the degree of contamination and
Thays Thayanne Luz Santos, Rozane Valente Marins, Letícia Paulino Alves   +2 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Mobility of zinc and copper in contaminated clay soil influenced by Actinidia deliciosa and incubation times [PDF]

Journal of Advances in Environmental Health Research, 2013
As a low cost byproduct, Actinidia deliciosa shell can be made into sorbent materials which are used in heavy metals immobilization. It has been investigated as a replacement for currently expensive methods of heavy metal immobilization from soil.
Bahareh Lorestani, Hajar Merrikhpour, Sanaz Ashoorloo, Mehrdad Cheraghi   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

A New Sequential Algorithm for Hyperspectral Endmember Extraction [PDF]

IEEE Geoscience and Remote Sensing Letters, 2012
Endmember extraction is an important step in spectral mixture analysis when endmembers are unknown. Endmembers are usually assumed to be pure pixels present in an image scene. Under this circumstance, endmember extraction is to find the most distinctive pixels.
openaire   +1 more source

Avaliação dos métodos de extração sequencial de Tessier, Keller e Miller na determinação de ferro nativo em três tipos de solos: orgânico, brunizem e latossolo

Química Nova, 2003
Sequential extraction is not totally effective to dissolve distinct forms of trace elements. The extractive solution, for example, can dissolve less of the target fraction and more than another not wished fraction. The goal of this work is to compare the
Lã Otavio Raymundo, Barra Cristina Maria, Amaral Sobrinho Nelson Moura Brasil do, Mazur Nelson, Velloso Ary Carlos Xavier   +4 more
doaj  

Potentially Toxic Metal and Metalloid Fractionation Contamination in Sediments of Daya Bay, South China Sea [PDF]

Kemija u Industriji, 2015
The metal profiles in sediments of the Daya Bay (DYB) in China were established using sequential extraction protocols proposed by the European Community Bureau of Reference (BCR).
L. L. Cao, J. Yang, P. Wang, L. Wang, H. T. Tian, M. K. Zou, J. Xie   +6 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

An Integrated Biorefinery Process to Revalorize Marine Biomass from the Microalga Nannochloropsis gaditana Using Pressurized Green Solvents

Marine Drugs
Biorefinery is gaining attention as a promising approach to valorize natural resources and promote a circular bioeconomy. This study aimed to recover high-value molecules, such as xanthophylls and polar lipids with nutraceutical applications, through ...
Cristina Blanco-Llamero, Paz García-García, Francisco Javier Señoráns   +2 more
doaj   +1 more source