Results 81 to 90 of about 3,683,011 (357)

Robust methods for differential abundance analysis in marker gene surveys

Nature Methods, 2013
We introduce a methodology to assess differential abundance in sparse high-throughput microbial marker-gene survey data. Our approach, implemented in the metagenomeSeq Bioconductor package, relies on a novel normalization technique and a statistical ...
J. Paulson, O. Stine, Hector Corrado Bravo, Mihai Pop   +3 more
semanticscholar   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

When Youth Dialogue: A Pedagogic Framework for Changing the Conversation About Migration

Global Education Review, 2018
How should educators teach about one of the most complex and pressing issues of our times? This paper presents an empirically-grounded framework to help educators understand the opportunities and challenges of engaging youth around the topic of migration,
Liz Dawes Duraisingh, Sarah Sheya, Emi Kane   +2 more
doaj  

Exponentially Modified Protein Abundance Index (emPAI) for Estimation of Absolute Protein Amount in Proteomics by the Number of Sequenced Peptides per Protein*S

Molecular & Cellular Proteomics, 2005
To estimate absolute protein contents in complex mixtures, we previously defined a protein abundance index (PAI) as the number of observed peptides divided by the number of observable peptides per protein (Rappsilber, J., Ryder, U., Lamond, A.
Y. Ishihama, Y. Oda, Tsuyoshi Tabata, Toshitaka Sato, T. Nagasu, J. Rappsilber, M. Mann   +6 more
semanticscholar   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Abundance and distribution of California sea lions (Zalophus californianus) in central and northern California during 1998 and summer 1999 [PDF]

, 2005
The abundance and distribution of California sea lions (Zalophus californianus) in central and northern California was studied to allow future evaluation of their impact on salmonids, the ecosystem, and f isheries.
Forney, Karin A., Lowry, Mark S.
core  

The Solar Flare Iron Abundance

, 2012
The abundance of iron is measured from emission line complexes at 6.65 keV (Fe line) and 8 keV (Fe/Ni line) in {\em RHESSI} X-ray spectra during solar flares.
B. R. Dennis, Bryans, Dennis, Feldman, Feldman, Fischer, Fludra, K. J. H. Phillips, Klimchuk, Laming, Laming, Lemen, Lodders, Mewe, Parkinson, Phillips, Phillips, Phillips, Sylwester, Sylwester, Valenti, White, Young   +22 more
core   +1 more source

Abundance analysis of two late A-type stars HD 32115 and HD 37594 [PDF]

, 2002
We have performed abundance analysis of two slowly rotating, late A-type stars, HD 32115 (HR 1613) and HD 37594 (HR 1940), based on obtained echelle spectra covering the spectral range 4000-9850 AAngstrom.
Abt, Adelman, Adelman, Barklem, Baumüller, Belyakova, Belyakova, Biémont, Bord, Bruntt, Cowley, Cowley, Dimitrijevic, E. V. Belyakova, F. A. Musaev, Froese Fischer, Fuhrmann, G. Galazutdinov, Gardiner, Grenier, Grevesse, Gustafsson, H. Bruntt, Hauck, Hibbert, Hibbert, Holweger, Holweger, I. F. Bikmaev, Ivanova, Ivanova, Jonsson, Konjevic, Kupka, L. I. Mashonkina, Lawler, Lawler, Luck, Luck, Mashonkina, Mashonkina, Mashonkina, Moon, Napiwotzki, Nave, Nordström, P. S. Barklem, Pamyatnykh, Paunzen, Piskunov, Raassen, Rentzsch-Holm, Schnabel, Smalley, Smalley, Stehlé, Sturenburg, T. A. Ryabchikova, Takeda, Takeda, Turcotte, V. V. Shimansky, Valenti, Varenne, Zhang, Zhao   +65 more
core   +1 more source

One Percent Determination of the Primordial Deuterium Abundance [PDF]

, 2017
We report a reanalysis of a near-pristine absorption system, located at a redshift toward the quasar Q1243+307, based on the combination of archival and new data obtained with the HIRES echelle spectrograph on the Keck telescope.
R. Cooke, M. Pettini, C. Steidel
semanticscholar   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source