Results 31 to 40 of about 5,948 (183)

Trypanosoma brucei TIF2 and TRF Suppress VSG Switching Using Overlapping and Independent Mechanisms. [PDF]

PLoS ONE, 2016
Trypanosoma brucei causes debilitating human African trypanosomiasis and evades the host's immune response by regularly switching its major surface antigen, VSG, which is expressed exclusively from subtelomeric loci.
Sanaa E Jehi, Vishal Nanavaty, Bibo Li
doaj   +1 more source

Vertical sleeve gastrectomy reduces blood pressure and hypothalamic endoplasmic reticulum stress in mice

Disease Models & Mechanisms, 2017
Bariatric surgery, such as vertical sleeve gastrectomy (VSG), causes remarkable improvements in cardiometabolic health, including hypertension remission. However, the mechanisms responsible remain undefined and poorly studied. Therefore, we developed and
Anne K. McGavigan, Zachariah M. Henseler, Darline Garibay, Scott D. Butler, Sisitha Jayasinghe, Ruth E. Ley, Robin L. Davisson, Bethany P. Cummings   +7 more
doaj   +1 more source

Thin‐Film Transistor Based Active Taxel for Multimode Tactile Perception and Fused Processing

Advanced Science, EarlyView.
Skin serves as the largest‐area organ for human and embodied intelligent robots, providing tactile interaction. An active multimode fused (AMF) artificial skin is developed using standard TFT processes, featuring 2T‐1C taxels with optical and electrostatic capacitive receptors for cross‐modal sensing.
Sihao Wu, Zheng Zhou, Aoran Xu, Lutong Wang, Tingchen Yi, Chuanlin Sun, Haotong Zhu, Jiaqi Li, Junchen Dong, Li Zhou, Lifeng Liu, Yimao Cai, Dedong Han, Xing Zhang   +13 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Analysis of Offline Transient Power Oscillation and Its Suppression Method in the Microgrid with Multiple Virtual Synchronous Generators

Energies, 2023
When multiple Virtual Synchronous Generators (VSGs) operate in parallel in an islanded grid, power and frequency oscillations will occur when one VSG goes offline.
Liang Shan, Bo Yang, Shuai Lu
doaj   +1 more source

Indicators from training healthcare providers on WHO‐recommended best practices in prenatal care in Brazil: A before‐and‐after study

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To analyze prenatal indicators of management, process, and obstetrical outcomes, before and after training healthcare providers on the WHO recommendations for best evidence‐based practices. Methods A quasi‐experimental before‐and‐after operational study was conducted from January to July 2022.
Sabrina O. Savazoni, Samira M. Haddad, Adriana S. Moraes, Samar A. Rahim, Mona K. Rahim, Maria T. Toro, Vitoria S. Gomes, Pedro R. Gandra, Jose G. Cecatti   +8 more
wiley   +1 more source

Average Model and Controller Design for Virtual Synchronous Generator

IEEE Access
This paper proposes a novel systematic design procedure for virtual synchronous generators (VSGs) and develops an average VSG model. The VSG comprises distributed generators, an energy storage system consisting of a battery and a DC-DC converter (DDC ...
Kenta Koiwa, Tomo Hirabayashi, Tadanao Zanma, Kang-Zhi Liu   +3 more
doaj   +1 more source

Cohesin regulates VSG monoallelic expression in trypanosomes [PDF]

Journal of Cell Biology, 2009
Antigenic variation allows Trypanosoma brucei to evade the host immune response by switching the expression of 1 out of ∼15 telomeric variant surface glycoprotein (VSG) expression sites (ESs). VSG ES transcription is mediated by RNA polymerase I in a discrete nuclear site named the ES body (ESB).
Landeira, David, Bart, Jean-Mathieu, Van Tyne, D., Navarro, M.   +3 more
openaire   +3 more sources

Laser‐Direct Printed 2D Material‐Based Heterostructure for the Fabrication of Electronic Devices

Small, EarlyView.
The Digital Laser‐Induced Forward Transfer (LIFT) approach is employed to pattern and stack 2D materials with micrometer‐scale precision. PdSe2 and MoSe2 are assembled into vertical p–n junctions, with graphene serving as a transparent electrode. The resulting laser‐transferred heterostructures exhibit high material quality and stable rectifying ...
Ilias Cheliotis, Filimon Zacharatos, Avraham Twitto, Michal Poplinger, Adi Levi, Amaia Pesquera, Amaia Zurutuza, Iakovos Kritikos, Stefania Skorda, Alexandros El Sachat, Yuri Mikhlin, Doron Naveh, Ioanna Zergioti   +12 more
wiley   +1 more source

A full sequence impedance modelling and stability analysis of the virtual synchronous generator with inner loops

IET Renewable Power Generation, 2021
Virtual synchronous generator (VSG) has been widely studied owing to its inertia support to the grid. However, the stability of VSG is not analysed accurately for actual applications in previous studies that overlook voltage and current inner loops of ...
Yang Peng, Yue Wang, Yonghui Liu, Peng Yu, Sirui Shu, Wanjun Lei   +5 more
doaj   +1 more source