Zobrazeno 1 - 10
of 252
pro vyhledávání: '"M. Shelef"'
Autor:
Adam R. Burns, Katie M. Shelef, Meredith E. Millman, David A. Relman, Peter M. Loomer, Antonio Gonzalez, Susan Holmes, Diana M. Proctor, Mark I. Ryder, Rob Knight, Clara L. Davis Long, Gary C. Armitage, Les Dethlefsen
Publikováno v:
Periodontol 2000
Periodontology 2000, vol 82, iss 1
Periodontology 2000, vol 82, iss 1
Human-associated microbial communities differ in composition among body sites and between habitats within a site. Patterns of variation in the distribution of organisms across time and space is referred to as ‘biogeography’. The human oral cavity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::680a380c87cac2daa5d232e8ba6c52c9
https://europepmc.org/articles/PMC6924627/
https://europepmc.org/articles/PMC6924627/
Publikováno v:
Journal of Assisted Reproduction and Genetics. 25:23-28
The aim of the present study was to compare the quality of embryos derived from sibling oocytes by in vitro fertilization (IVF) or ICSI.Consecutive patients with a less than 40% fertilization rate in a previous standard IVF cycle or with relative mal
Publikováno v:
Gynecological Endocrinology. 14:433-436
We assessed the value of requesting a second semen sample provided within 1 hour of the first in cases of unacceptable ejaculate quality (compared to previous occasions) or very poor semen characteristics. The study population consisted of 109 males
Publikováno v:
Journal of Catalysis. 186:334-344
HZSM-5 with SiO 2 /Al 2 O 3 =50 into which 0.5 wt% Cu (Cu/ Al∼0.25) was introduced after the removal of extralattice Al species by basic or acidic treatment shows no inhibition of the irreversible loss of active, tetrahedrally coordinated Cu 2+ sit
Publikováno v:
Catalysis Letters. 50:1-7
Gd3+-ESR spectroscopy can be used as a sensitive method for the study of lanthanide additives in catalysts. Here we present the results of a comparative study of Gd/SiO2-Al2O3 and Gd/HZSM-5. ESR gives evidence of rigid bonding of isolated Gd3+ ions i
Publikováno v:
The Journal of Physical Chemistry. 100:253-264
MgO-supported platinum and platinum−molybdenum catalysts were prepared from organometallic precursors and characterized structurally to determine how the nature of the bimetallic precursors and the treatment conditions affected the interaction betw
Publikováno v:
Catalysis Today. 27:79-84
A flow cell was designed for in-situ ESR monitoring of the state of copper ions in a working Cu-ZSM-5 catalyst at high temperatures. The equilibrium oxidation state of the copper in the catalyst depends both on the temperature and the composition of
Autor:
M. Shelef
Publikováno v:
Chemical Reviews. 95:209-225
Autor:
G. W. Graham, M. Shelef
Publikováno v:
Catalysis Reviews. 36:433-457
The catalytic treatment of motor vehicle exhaust gas has been a feature of all passenger cars in the USA since the 1975 model year. It has since been adopted in all the developed countries as the principal means of con-trolling the emissions from veh
Autor:
A.D. Logan, M. Shelef
Publikováno v:
Journal of Materials Research. 9:468-475
Oxyreduction studies of mixed Ce/Pr oxides have been carried out. Temperature-programmed desorption (TPD), temperature-programmed reduction (TPR), and temperature-programmed oxidation (TPO) were used to study the uptake and release of the oxygen. Lar