Results 131 to 140 of about 2,805,233 (318)

Efficiency droop in GaInN high-power light-emitting diodes

, 2018
GaN-based light-emitting diodes suffer from high-current loss mechanisms that lead to a significant decrease in internal quantum efficiency at high drive currents.
Kim, J.K., Martin F. Schubert
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Wheat TaTIFY3B and TaTIFY10A play roles in seed germination and abiotic stress responses in transgenic Arabidopsis and rice

BMC Plant Biology
Background Seed germination is a key process in the plant life cycle that affects the vegetative and reproductive stages of plants. Although the JAZ gene family has been characterized in many plants, the relationship between the JAZ gene and seed ...
Hanxi Liu, Yaxin Yao, Jiayang Ma, Shaoyu Wang, Song Li, Weiwei Wang, Xinmiao Yu, Fengli Sun, Chao Zhang, Yajun Xi   +9 more
doaj   +1 more source

Optimization of a high efficiency FEL amplifier

, 2014
13 pages, 7 ...
Schneidmiller, Evgeny Alexanrdovich, Yurkov, Mikhail   +1 more
openaire   +4 more sources

Effect of losses in an active device and harmonic network on the efficiency of Class F and inverse Class F power amplifiers

, 2012
High frequency class F and inverse class F power amplifiers obtain high efficiency of dc to ac power conversion, by reducing the overlap of voltage and current waveforms at the output of the active device, to ensure that the power dissipated in the ...
Ghassemlooy, Zabih, Korolkiewicz, Edward, Danaher, Sean, Sambell, Alistair, Liu, Lei, Lu, Qing   +5 more
core  

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Features of Increasing the Wear Resistance of 90CrSi Tool Steel Surface under Various Electrophysical Parameters of Plasma Electrolytic Treatment

Metals
The paper investigates the feasibility of plasma electrolytic treatment (PET) of 90CrSi tool steel to enhance hardness and wear resistance. The influence of electrophysical parameters of PET (polarity of the active electrode, chemical-thermal treatment ...
Sergey N. Grigoriev, Ivan V. Tambovskiy, Tatiana L. Mukhacheva, Irina A. Kusmanova, Pavel A. Podrabinnik, Nikolay O. Khmelevsky, Igor V. Suminov, Sergei A. Kusmanov   +7 more
doaj   +1 more source

Life cycle assessment of buildings technologies: High-efficiency commercial lighting and residential water heaters

, 1997
In this study the life cycle emissions and energy use are estimated for two types of energy technologies. The first technology evaluated is the sulfur lamp, a high-efficiency lighting system under development by the US Department of Energy (DOE) and ...
Freeman, S.L.
core   +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

A GGDEF and EAL domain-containing protein in Pseudomonas syringae pv. actinidiae regulates virulence via its diguanylate cyclase activity

Phytopathology Research
Kiwifruit bacterial canker (KBC), caused by Pseudomonas syringae pv. actinidiae (Psa), poses a severe threat to the global kiwifruit industry, highlighting the urgent need to elucidate its pathogenic mechanisms. Cyclic diguanylate monophosphate (c-di-GMP)
Yudi Wang, Mingming Yang, Jinfang Zhou, Xianwei Xie, Jiabing Ma, Yao Wang, Xihui Shen, Lili Huang   +7 more
doaj   +1 more source