Results 41 to 50 of about 276,244 (304)

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Performance Testing and Analysis of Synchronous Reluctance Motor Utilizing Dual-phase Magnetic Material [PDF]

, 2017
While interior permanent magnet (1PM) machines have been considered the state-of-the art for traction motors, synchronous reluctance (SynRel) motors with advanced materials can provide a competitive alternative.
Alexander, James P., EL-Refaie, Ayman M., Grace, Kevin, Huh, Kum-kang, Johnson, Frank, Pan, Di, Reddy, Patel B., Tapadia, Nidhishri, Zou, Min   +8 more
core   +2 more sources

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Review of Field Weakening Control Strategies of Permanent Magnet Synchronous Motors

CES Transactions on Electrical Machines and Systems
Due to high power density, high efficiency, and accurate control performance, permanent magnet synchronous motors (PMSMs) have been widely adopted in equipment manufacturing and energy transformation fields.
Runze Jing, Gaolin Wang, Guoqiang Zhang, Dianguo Xu   +3 more
doaj   +1 more source

Phase voltage distortion of IPM and SPM machines with distributed windings in field weakening region

The Journal of Engineering, 2019
This study investigates the field-weakening capability of interior permanent magnet (IPM) and surface-mounted permanent magnet (SPM) machines with distributed windings by considering phase voltage distortion in field-weakening region.
Nan Zhao, Nigel Schofield, Nigel Schofield, Yiheng Hu   +3 more
doaj   +1 more source

High Response Field Weakening Control by Voltage Phase Operation

IEEJ Transactions on Industry Applications, 2009
A high response field weakening control has been developed for the torque control drives of permanent magnet synchronous motors (PMSMs). Compared to the conventional method, the torque response and the output torque of PMSMs in the voltage saturation region becomes higher when using the proposed method. In this paper, the field weakening control, which
Kentarou Ohi, Kazuaki Tobari, Yoshitaka Iwaji   +2 more
openaire   +2 more sources

Pengendalian Motor Sinkron Magnet Permanen Menggunakan Direct Model Reference Adaptive Control Dan Adaptive Field Weakening Control [PDF]

, 2005
Paper ini akan membahas sebuah pendekatan kendali adaptive untuk Motor sinkron magnet permanen (MSMP) tipe surface mounted dalam seluruh rentang kecepatannya. Pendekatan ini membutuhkan koordinasi antara arus sumbu direct id dan arus sumbu quadratur iq.
Hamdani, T. (Tajuddin)
core