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Open AccessRecognizing ancient papyri by a combination of spectroscopic, diffractional and chromatographic analytical tools
Ancient papyri are a written heritage of culture that flourished more than 3000 years ago in Egypt. One of the most significant collections in the world is housed in the Egyptian Museum and Papyrus Collection ...
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Article
Solid-state and unilateral NMR study of deterioration of a Dead Sea Scroll fragment
Unilateral and solid-state nuclear magnetic resonance (NMR) analyses were performed on a parchment fragment of the Dead Sea Scroll (DSS). The analyzed sample belongs to the collection of non-inscribed and nont...
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Article
Fungal bioleaching of mineral components in a twentieth-century illuminated parchment
In this work, we applied scanning electron microscopy (SEM), microanalysis and Raman spectroscopy to study the fungi inhabiting a richly illuminated parchment document and the damage induced by their activity....
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Article
Anal melanoma in the era of sentinel lymph node map**: a diagnostic and therapeutic challenge
Melanoma of the anal canal is a rare malignancy that often has an atypical presentation. Locoregional metastases, which are often present at the initial presentation, may occur in both groin and pelvic lymph n...
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Article
Fluorescence spectroscopy of silver clusters formed in rare gas droplets
The Pick Up technique allows continuous formation of high density metal cluster beams in the otherwise hardly accessible size range Me2 to about Me50. With an apparatus based on the use of cryo-condensation pumps...
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Article
The CO stretch frequency of fully CO covered Ag-clusters in dependence on cluster size
Silver clusters Agn prepared either by the gas aggregation technique (GAT) or by matrix aggregation of Ag were embedded in CO and CO/Ar-matrices. The vibrational CO stretch frequency at the monolayer coverage, wh...
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Article
The influence of CO on the surface plasmon absorption band of small silver clusters (D≤20 Å)
The surface plasmon absorption band of small Ag particles (diameter≤100 Å) in the gasphase as well as for clusters embedded in noble gas matrices is known to shift to higher energies and to broaden with decrea...
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Article
An optical method for temperature measurement of silver clusters
Generating silver clusters by means of the gas aggregation technique, we have observed that in addition to larger clusters, a substantial amount of silver dimers is always present. This allows us to determine ...
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Article
Interaction of CO with silver clusters: Dependence on cluster size
The interaction of matrix-isolated silver clusters with CO has been investigated for clusters containing as few as 100 atoms/cluster. A vibrational mode at a monolayer coverage, which is found on bulk silver a...
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Article
Electron impact ionization of silver clusters Ag n ,n≦36
Electron impact ionization of gas phase silver clusters Ag n ,n≦36 has been achieved in the threshold region. The vertical ionization potentials in this region clearly demonstrat...
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Article
Silver-halogen cluster compounds Ag n X m (n≥2; 0≤m≤n;X=F, Br)
Nonstoichiometric silver-halogen cluster compounds Ag n X m (0≤m≤n;X=F, Br) are generated by cocondensation of Ag atoms and AgX species using ...
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Article
Shell effects in singly and multiply charged silver and gold clusters
The mass spectra of silver- and gold-clusters, generated by a gas aggregation technique and ionized by electron impact, reveal anomalies in the relative abundance of both singly and multiply charged clusters. ...