Results 21 to 30 of about 9,368 (190)

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

Angewandte Chemie, EarlyView.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol, Yimo Yang, Chi Chung Lee, Markus W. Ribbe, Yilin Hu   +4 more
wiley   +2 more sources

Expression of epithelial–mesenchymal transition-associated proteins and proliferating cell nuclear antigen in dihydropyridine-induced gingival overgrowth fibroblasts: A preliminary study

Journal of Dental Sciences, 2023
Background/purpose: The clinical features of dihydropyridine-induced gingival overgrowth (DIGO), including extracellular matrix accumulation and cell hyperplasia, are regulated by inflammatory factors (e.g., Interleukin-1β [IL-1β]) in combination with ...
Po-Han Chen, Yaw-Tung Chuang, Chiung-Fang Huang, Hsein-Kun Lu   +3 more
doaj   +1 more source

A minimal nitrogen fixation gene cluster from Paenibacillus sp. WLY78 enables expression of active nitrogenase in Escherichia coli.

PLoS Genetics, 2013
Most biological nitrogen fixation is catalyzed by molybdenum-dependent nitrogenase, an enzyme complex comprising two component proteins that contains three different metalloclusters.
Liying Wang, Lihong Zhang, Zhanzhi Liu, Dehua Zhao, Xiaomeng Liu, Bo Zhang, Jianbo Xie, Yuanyuan Hong, Pengfei Li, Sanfeng Chen, Ray Dixon, Jilun Li   +11 more
doaj   +1 more source

Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification

Water Science and Technology, 2021
Degradation activity of plasma catalysis between dielectric barrier discharge (DBD) and carbon nanotubes-graphene-nickel foam (CNTs-G-Nif) has been studied in treatment of dye wastewater.
Qihui Xu, Shuaikang Fang, Yin Chen, Jae Kwang Park, Chao Pan, Yongjun Shen, Na Zhu, Huifang Wu   +7 more
doaj   +1 more source

A Neural Code That Is Isometric to Vocal Output and Correlates with Its Sensory Consequences.

PLoS Biology, 2016
What cortical inputs are provided to motor control areas while they drive complex learned behaviors? We study this question in the nucleus interface of the nidopallium (NIf), which is required for normal birdsong production and provides the main source ...
Alexei L Vyssotski, Anna E Stepien, Georg B Keller, Richard H R Hahnloser   +3 more
doaj   +1 more source

Predictive value of the negative inspiratory force index as a predictor of weaning success: a crosssectional study [PDF]

Acute and Critical Care, 2020
Background Identifying when intubated patients are ready to be extubated remains challenging. The negative inspiratory force (NIF) is a recommended predictor of weaning success.
Phuong Hoang Vu, Viet Duc Tran, Minh Cuong Duong, Quyet Thang Cong, Thu Nguyen   +4 more
doaj   +1 more source

Thermal stress-induced depolarization compensation in wide-bandwidth, high-energy, high-repetition-rate multi-slab laser amplifiers

High Power Laser Science and Engineering
We present an innovative design for a two-head, gas-cooled multi-slab high-energy, high-repetition-rate amplifier aimed at mitigating thermally induced depolarization in a wide-bandwidth neodymium-doped glass gain medium.
Saumyabrata Banerjee, Anthony J. Vella, František Batysta, Thomas Galvin, Emily Link, Brendan A. Reagan, Thomas Spinka   +6 more
doaj   +1 more source

Actualización del software de módulos de informes contables bajo NIF para microempresarios no declarantes de IVA, apoyado en Visual Basic aplicaciones (VBA), Excel

Ciencia e Ingeniería, 2020
El constante cambio en la economía y la apertura entre fronteras y el acceso a los mercados internacional de capitales generada por los tratados de libre comercio hizo necesario estandarizar el idioma contable y la presentación de sus estados financieros,
Augusto Alarcón Linares
doaj  

A Grotesque/Ethnic Figurine Fragment from Ballıcaoluk Settlement at Mount Nif (Olympos)

Arkhaia Anatolika
Ballıcaoluk, one of the excavation areas of the Mount Nif (Olympos) Excavation, is a fortified settlement within the borders of Vişneli village in Kemalpaşa (Nymphaion), on the east side of Mt. Nif.
Göknur BEKTAŞ
doaj   +1 more source

Antagonism of CD11b with neutrophil inhibitory factor (NIF) inhibits vascular lesions in diabetic retinopathy. [PDF]

PLoS ONE, 2013
Leukocytes and proteins that govern leukocyte adhesion to endothelial cells play a causal role in retinal abnormalities characteristic of the early stages of diabetic retinopathy, including diabetes-induced degeneration of retinal capillaries.
Alexander A Veenstra, Jie Tang, Timothy S Kern   +2 more
doaj   +1 more source