نتایج جستجو برای: uvc

تعداد نتایج: 853  

Journal: :Separation and Purification Technology 2021

One of the major challenges in reusing cooling tower blowdown water (CTBD) utilizing membrane processes is its remaining organic compounds, e.g., humic substances leading to biofouling. Besides, possible abundance chloride CTBD imposes concern formation chlorinated by-products. To choose a pre-treatment process for studied composition, various advanced oxidation (AOPs), including electrooxidati...

Journal: :Mutagenesis 2013
Derrik M Leach Natalie J Zacal Andrew J Rainbow

Previously, we have reported the use of a recombinant adenovirus (Ad)-based host cell reactivation (HCR) assay to examine nucleotide excision repair (NER) of UVC-induced DNA lesions in several mammalian cell types. The recombinant non-replicating Ad expresses the Escherichia coli β-galactosidase (β-gal) reporter gene under control of the cytomegalovirus immediate-early enhancer region. We have ...

2010
Christine Ward-Paige Joanna Mills Flemming Heike K. Lotze

BACKGROUND Increasingly, underwater visual censuses (UVC) are used to assess fish populations. Several studies have demonstrated the effectiveness of protected areas for increasing fish abundance or provided insight into the natural abundance and structure of reef fish communities in remote areas. Recently, high apex predator densities (>100,000 individuals x km(-2)) and biomasses (>4 tonnes x ...

Journal: :American journal of physiology. Endocrinology and metabolism 2011
Cezary Skobowiat John C Dowdy Robert M Sayre Robert C Tuckey Andrzej Slominski

The hypothalamic-pituitary-adrenal (HPA) axis maintains basal and stress-related homeostasis in vertebrates. Skin expresses all elements of the HPA axis including corticotropin-releasing hormone (CRH), proopiomelanocortin (POMC), ACTH, β-endorphin (β-END) with corresponding receptors, the glucocorticoidogenic pathway, and the glucocorticoid receptor (GR). To test the hypothesis that cutaneous r...

Journal: :Nature Communications 2021

Abstract Photon upconversion of near-infrared (NIR) irradiation into ultraviolet-C (UVC) emission offers many exciting opportunities for drug release in deep tissues, photodynamic therapy, solid-state lasing, energy storage, and photocatalysis. However, NIR-to-UVC remains a daunting challenge due to low quantum efficiency. Here, we report an unusual six-photon process Gd 3+ /Tm -codoped nanopar...

2013
Christian Brochu Miguel A. Cabrita Brian D. Melanson Jeffrey D. Hamill Rosanna Lau Christine Pratt Bruce C. McKay

The cold inducible RNA binding protein (CIRBP) responds to a wide array of cellular stresses, including short wavelength ultraviolet light (UVC), at the transcriptional and post-translational level. CIRBP can bind the 3’untranslated region of specific transcripts to stabilize them and facilitate their transport to ribosomes for translation. Here we used RNA interference and oligonucleotide micr...

2013
Yan Gao Ying Liu Lei Zhou Zehong Guo Mingdeng Rong Xiangning Liu Chunhua Lai Xianglong Ding

Many challenges exist in improving early osseointegration, one of the most critical factors in the long-term clinical success of dental implants. Recently, ultraviolet (UV) light-mediated photofunctionalization of titanium as a new potential surface treatment has aroused great interest. This study examines the bioactivity of titanium surfaces treated with UV light of different wavelengths and t...

2017
Craig Meyers Janice Milici Richard Robison

Endocavitary ultrasound probes are part of a commonly used procedure in the clinical arena. The cavities examined, vaginal canal and cervix, anal canal, and oral cavity are all areas commonly infected with the human papillomavirus (HPV), thus making them susceptible to contamination by HPV. It has been demonstrated that these probes can remain contaminated with high-risk HPV even when approved ...

Journal: :Cell cycle 2007
Aaron Joseph Donner Jennifer Michelle Hoover Stephanie Aspen Szostek Joaquín Maximiliano Espinosa

The p53 transcriptional network is composed of hundreds of effector genes involved in varied stress-response pathways, including cell cycle arrest and apoptosis. It is not clear how distinct p53 target genes are differentially activated to trigger stress-specific biological responses. We analyzed the p53 transcriptional program upon activation by two DNA-damaging agents, UVC and doxorubicin, ve...

Journal: :Indian journal of biochemistry & biophysics 2012
Rita Ghosh Dipanjan Guha Sudipta Bhowmik Sayantani Karmakar

Bystander effect is the communication of signals from irradiated to unexposed neighboring cells which is often mediated through factors released from irradiated cells. We have attempted to investigate whether UV-bystander phenomenon can modulate the sensitivity of A375 cells and its mechanism. For this purpose, the conditioned medium from UVC-irradiated cells, which contained these released fac...

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