Results 71 to 80 of about 331,481 (306)
The problem of dating quartz 1 : Spectroscopic ionoluminescence of dose dependence [PDF]
, 2010 This work is partially supported by NERC studentship F008589/1.A suite of quartz samples of different provenances, irradiation, thermal and depositional histories were analysed using spectroscopic ionoluminescence (IL) to investigate variations in ...
Robinson, Ruth Alison Joyce +7 more
core +1 more source
The microbiome in human skin aging
FEBS Letters, EarlyView.Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana +3 more
wiley +1 more source
Virtual Dating: Isochron Diagrams
, 2004 Virtual Dating teaching package contain exercises, questions and interactive diagrams describing absolute dating techniques used in geology. The Isochron exercise contains interactive (Flash) online exercises that help students to understand radioactive ...
Robert Desharnais
core
The Effects of Possible Contamination on the Radiocarbon Dating of the Dead Sea Scrolls II: Empirical Methods to Remove Castor Oil and Suggestions for Redating [PDF]
, 2009 While kept at the Rockefeller Museum in East Jerusalem, many Dead Sea Scroll fragments were exposed to castor oil by the original team of editors in the course of cleaning the parchments.
Højrup, Peter +17 more
core +2 more sources
KUR’AN SÛRELERİNİN BÜTÜNLÜĞÜ VE TARİHLENDİRİLMESİ SORUNU ÜZERİNE BİR DEĞERLENDİRME
İslami İlimler DergisiKur’an’ın, belirli bir tarih aralığında vuku bulan birtakım hadiselerle ilişkili olarak şifâhî bir formda inzal edildiği bilinmektedir. Hz. Peygamber’in Kur’an’ın ilk muhataplarına canlı bir diyalog niteliğinde ilettiği vahiy bölümlerinin halifeler ...
Orhan Güvel
doaj +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Towards achieving low background levels in routine dating by liquid scintillation spectrometry [PDF]
, 2004 International radiocarbon intercalibration studies have revealed that radiometric laboratories using liquid scintillation (LS) spectrometry of benzene reported, on average, younger ages for near-background standards than either gas proportional counter ...
Hogg, Alan G.
core +1 more source
Molecular Spectroscopy as an alternative for dating Textiles
MATEC Web of Conferences, 2015 Ancient linen textiles undergo with time a slow change reflected in their Infrared and Raman spectra. The recording of FT-IR and FT-Raman spectra, that reveals a disappearance of some bands and appearance of other ones during the centuries, enables a ...
Baraldi Pietro, Tinti Anna
doaj +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source