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16 Newest Publications about the topic photometry


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A neural pathway controlling motivation to exert effort [Neuroscience]

29-May-2018 | Christophe D. Proulx; Sage Aronson; Djordje Milivojevic; Cris Molina; Alan Loi; Bradley Monk; Steven J. Shabel; Robe ..., Proceedings of the National Academy of Sciences current issue, 2018

The lateral habenula, a brain region that has been implicated in depression, receives inputs from brain nuclei associated with basic emotions and drives. In this report, using fiber photometry and optogenetics on behaving rats, we show that one major lateral habenula output pathway controls the ...


Neurons that drive and quench thirst

15-Sep-2017 | Claire Gizowski; Charles W. Bourque, Science , 2017

Thirst is a vital primordial emotion that motivates fluid intake to compensate for incessant water loss incurred as a result of breathing, sweating, and urine production. Indeed, the maintenance of adequate hydration is a prerequisite for life and, accordingly, the desire to drink emerges as soon ...


The Use of Ratiometric Fluorescence Measurements of the Voltage Sensitive Dye Di-4-ANEPPS to Examine Action Potential Characteristics and Drug Effects on Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes

01-Dec-2016 | M. P. Hortigon-Vinagre; V. Zamora; F. L. Burton; J. Green; G. A. Gintant; G. L. Smith, Toxicological Sciences, 2016

Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) and higher throughput platforms have emerged as potential tools to advance cardiac drug safety screening. This study evaluated the use of high bandwidth photometry applied to voltage-sensitive fluorescent dyes (VSDs) to assess ...


Simultaneous fast measurement of circuit dynamics at multiple sites across the mammalian brain

15-Feb-2016 | Christina K Kim; Samuel J Yang; Nandini Pichamoorthy; Noah P Young; Isaac Kauvar; Joshua H Jennings; Talia N Lerner; ..., Nature Methods, 2016

Nature Methods 13, 325 (2016). doi:10.1038/nmeth.3770 Authors: Christina K Kim, Samuel J Yang, Nandini Pichamoorthy, Noah P Young, Isaac Kauvar, Joshua H Jennings, Talia N Lerner, Andre Berndt, Soo Yeun Lee, Charu Ramakrishnan, Thomas J Davidson, Masatoshi Inoue, Haruhiko Bito & ...


Coaxial Microincision Cataract Surgery versus Standard Coaxial Small-Incision Cataract Surgery: A Meta-Analysis of Randomized Controlled Trials

08-Jan-2016 | Xingchao Shentu et al., PLoS ONE, 2016

by Xingchao Shentu, Xin Zhang, Xiajing Tang, Xiaoning Yu Background We conducted this meta-analysis to compare the outcomes of coaxial microincision cataract surgery (C-MICS) and standard coaxial small incision cataract surgery (C-SICS). Methods The outcomes of randomized controlled trials ...


Deconvolution of high‐throughput multi‐component isotherms using multivariate data analysis of protein spectra

20-Nov-2015 | Pascal Baumann, Thiemo Huuk, Tobias Hahn, Anna Osberghaus, Juergen Hubbuch, Engineering in Life Sciences, 2015

Gaining a more profound understanding of biopharmaceutical downstream processes is a key demand of the Quality by Design (QbD) guidelines. One of the most dominant approaches to gain process understanding is the extensive use of experimental high‐throughput formats, such as batch chromatography ...


[Report] Discovery and spectroscopy of the young jovian planet 51 Eri b with the Gemini Planet Imager

02-Oct-2015 | B. Macintosh; J. R. Graham; T. Barman; R. J. De Rosa; Q. Konopacky; M. S. Marley; C. Marois; E. L. Nielsen; L. Pueyo ..., Science , 2015

Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric compositions and luminosities, which are influenced by their formation mechanisms. Using the Gemini Planet Imager, we discovered a planet orbiting the ~20-million-year-old star 51 Eridani at ...


Evaluating Potential Spectral Impacts of Various Artificial Lights on Melatonin Suppression, Photosynthesis, and Star Visibility

05-Jul-2013 | Martin Aubé et al., PLoS ONE, 2013

by Martin Aubé, Johanne Roby, Miroslav Kocifaj Artificial light at night can be harmful to the environment, and interferes with fauna and flora, star visibility, and human health. To estimate the relative impact of a lighting device, its radiant power, angular photometry and detailed spectral ...


DNA damage profiles induced by sunlight at different latitudes

16-Jan-2012 | Schuch, André Passaglia; Yagura, Teiti; Makita, Kazuo; Yamamoto, Hiromasa; Schuch, Nelson Jorge; Agnez‐ ..., Environmental and Molecular Mutagenesis, 2012

Abstract Despite growing knowledge on the biological effects of ultraviolet (UV) radiation on human health and ecosystems, it is still difficult to predict the negative impacts of the increasing incidence of solar UV radiation in a scenario of global warming and climate changes. Hence, the ...


Labeling Mitochondria with TMRM or TMRE

01-Jul-2011 | Chazotte, B., CSH Protocols, 2011

INTRODUCTION TMRM (tetramethylrhodamine methyl ester) or the related TMRE (tetramethylrhodamine ethyl ester) is extensively used for labeling and measuring the membrane potential (and the function) of mitochondria in living cells. Because of its optical and chemical properties, it has been one of ...


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