Results 71 to 80 of about 5,536,003 (286)

`Pure' Supernovae and Accelerated Expansion of the Universe

, 2011
A special class of type Ia supernovae that is not subject to ordinary and additional intragalactic gray absorption and chemical evolution has been identified.
A. Aguirre, A. Aguirre, A. G. Riess, A. G. Riess, B. Bassett, B. W. Holwerda, D. Yu. Tsvetkov, D. Yu. Tsvetkov, E. Mortsell, E. S. Gorbovskoy, G. Paturel, H. Lampeitl, I. Iben Jr., J. Guy, J. Whelan, M. Hicken, M. Kowalski, M. Sullivan, M. Sullivan, M. V. Pruzhinskaya, R. Barbon, R. Webbink, S. Perlmutter, V. M. Lipunov, V. M. Lipunov, Yu. P. Pskovskii, Yu. P. Pskovskii   +26 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Evaluation of Ethanol Grade on the Robustness of Acid Number Determination in Fish Oil

Indonesian Journal of Chemical Analysis
The robustness evaluation of the acid number analysis method in fish oil was carried out to see the effect of the type of ethanol used as a solvent in the titration process. The types of ethanol used in this study were pro analysis grade, pharma and food
Tri Esti Purbaningtias, Sandy
doaj   +1 more source

Changes in Egg Volatiles during Storage

Czech Journal of Food Sciences, 2002
The quality of eggs is tightly associated with freshness. New possibilities for the determination of egg freshness were studied. The volatile compounds of eggs and their changes during storage were followed. Three methods for extraction of volatiles were
J. Adamiec, M. Doležal, K. Míková, J. Davídek   +3 more
doaj   +1 more source

Chemical evolution of turbulent protoplanetary disks and the Solar nebula

, 2011
This is the second paper in a series where we study the influence of transport processes on the chemical evolution of protoplanetary disks. Our analysis is based on a flared alpha-model of the DM Tau system, coupled to a large gas-grain chemical network.
Aikawa, Aikawa, Aikawa, Aikawa, Aikawa, Andrews, Bauer, Bergin, Bergin, Bethell, Biver, Bockelée-Morvan, Boss, Bradley, Brownlee, Calvet, Cant, Cazaux, Chapillon, Crabtree, D'Alessio, d'Hendecourt, D. Semenov, D. Wiebe, Dickens, Duschl, Dutrey, Dutrey, Dutrey, Finocchi, Fogel, Fukagawa, Gail, Garrod, Glassgold, Glassgold, Glassgold, Glassgold, Gorti, Gorti, Greenberg, Greenberg, Harada, Hasegawa, Heinzeller, Henning, Hersant, Hirose, Hughes, Juhász, Jørgensen, Kalenskii, Kamp, Katz, Kim, Lahuis, Lee, Lee, Lee, Leger, Lynden-Bell, Mazzitelli, Meijerink, Najita, Najita, Pagani, Pascucci, Perez-Becker, Pierce, Pontoppidan, Pontoppidan, Pontoppidan, Prinn, Qi, Qi, Sakai, Salyk, Salyk, Sarrasin, Savin, Schräpler, Semenov, Semenov, Shakura, Shalabiea, Simon, Terada, Turner, Turner, Vasyunin, Vasyunin, Vasyunin, Wakelam, Wakelam, Walsh, Willacy, Willacy, Wolf, Wooden, Wooden, Woods, Woods, Zasowski, Öberg   +103 more
core   +1 more source

Chemical Abundances of the S star GZ Peg [PDF]

, 2009
The chemical compositions of stars from the Asymptotic Giant Branch are still poorly known due to the low temperatures of their atmospheres and therefore the presence of many molecular transitions hampering the analysis of atomic lines.
Allen, Alonso, Goriely, Gustafsson, Jorissen, L. Pompéia, Lebzelter, Smiljanic, Woolf   +8 more
core   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Changes during the extrusion of semolina in mixture with sugars

Czech Journal of Food Sciences, 2001
Wheat semolina and its mixtures with 5% glucose, fructose of sucrose were processed in a sigle screw extruder at the maximum temperature of 140°C and the processing time of 30 s.
A. Farouk Mansour, F. Pudil, V. Janda, J. Pokorný   +3 more
doaj   +1 more source

An astrometric and spectroscopic study of the $\delta$ Scuti variable HD21190 and its wide companion CPD -83$^{\circ}$ 64B [PDF]

, 2017
Although pulsations of $\delta$ Scuti type are not expected among Ap stars from a theoretical point of view, previous observations of the known $\delta$ Scuti star HD21190 indicated a spectral classification F2 III SrEuSi:, making it the most evolved Ap ...
Aliçavuş, F. Kahraman, Hubrig, S., Ilyin, I., Järvinen, S. P., Niemczura, E., Scholz, R. -D., Schöller, M.   +6 more
core   +2 more sources

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