Results 51 to 60 of about 218,481 (259)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Mechanical sensorless control of a rotor-tied DFIG wind energy conversion system using a high gain observer

Journal of King Saud University: Engineering Sciences
This paper proposes a field-oriented control (FOC) of a rotor-tied DFIG (RT-DFIG) using a high gain observer (HGO). For speed/DC-voltage and current regulation, the FOC employs a Proportional-Integral (PI) controller in both outer and inner loops.
Md Sabbir Haider Khan, Sanjeev Kumar Mallik   +1 more
doaj   +1 more source

Integrated metasurface for efficient polarization conversion and high-gain, low-RCS EM radiation

Optics Express, 2023
This paper presents an innovative design that combines the functionalities of a polarization convertor and an electromagnetic (EM) radiator into a single integrated metasurface. The metasurface consists of two identical metallic split-rings, a circular-shaped patch structure, a dielectric layer, and a reflective metallic ground.
Saeed Ur, Rahman, Hai, Deng, Muhammad Irshad, Khan, Naveed, Ullah, Zaki, Uddin   +4 more
openaire   +2 more sources

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

Low‐RCS High‐Gain Broadband Substrate‐Integrated Waveguide Antenna Based on Elliptical Polarisation Conversion Metasurface

IET Microwaves, Antennas & Propagation
An elliptical polarisation conversion metasurface (PCM) is proposed for Ka‐band applications, integrated with a high‐gain substrate‐integrated waveguide (SIW) antenna to achieve significant radar cross section (RCS) reduction.
Cuiqin Zhao, Dongya Shen
doaj   +1 more source

Performa produksi Broiler starter akibat cekaman panas dan perbedaan awal waktu pemberian pakan

Jurnal Ilmu-Ilmu Peternakan, 2018
The study was conducted to know performance (feed consumption, body weight gain and feed conversion) response of broiler starter due to heat stress and different initial feeding.
Liborio Ximenes, Pratiwi Trisunuwati, Muharlien Muharlien   +2 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

Fourier-transform infrared spectroscopy with undetected photons from high-gain spontaneous parametric down-conversion

Communications Physics
Fourier-transform infrared spectroscopy (FTIR) is an indispensable analytical method that allows label-free identification of substances via fundamental molecular vibrations.
Kazuki Hashimoto, Dmitri B. Horoshko, Mikhail I. Kolobov, Yoad Michael, Ziv Gefen, Maria V. Chekhova   +5 more
doaj   +1 more source