Callgirls in the quarries

Some examples from unpublished ostraka from the quarry at Umm Balad (Kaine Latomia) of private letters concerning women and higher class prostitution

Sulpicius Serenus, procurator Augusti, et la titulature des préfets de Bérénice

Das vor kurzem im praesidium Dios (dem Iovis des Itin. Ant.) im östlichen Teil der ägyptischen Wüste entdeckte griechische Ostrakon bietet Anlass, den Ort der praefectura montis Berenicidis in der Abfolge einer ritterlichen Laufbahn neu zu bestimmen. Bei dem Ostrakon handelt es sich um einen Arbeitsbericht, der mit einer Bitte um Arbeiter und metallurgisches Werkzeug verbunden war und den der epimeletes der Brunnen an Sulpicius Serenus, procurator Augusti, geschrieben hatte. Sulpicius Serenus ist uns bereits durch zwei Inschriften bekannt: I. Memnon 20, in der dieses Amt in der Lücke nach den drei militiae equestres genannt gewesen sein muss, und I. Pan 87, in der er seinen Sieg über den Nomadenstamm der Agriophagi feiert, aber ohne seine Funktion anzugeben. Zahlreiche in die gleiche Richtung weisende Indizien zeigen, dass die bekleidete Prokuratur nichts anderes als die Funktion des praefectus montis Berenicidis gewesen sein kann. In einem Anhang wird eine prosopographische Liste der praefecti montis Berenicidis vorgelegt (unter Einbeziehung unveröffentlichter Dokumente aus Didymoi).A Greek ostracon, recently found at the praesidium Dios (Iovis in the Itin. Ant.) in the Eastern Desert of Egypt, has made it necessary to rethink the place in the equestrian career occupied by the praefectura of Berenice. The text of the ostracon is a report of activities combined with a demand for workers and tools written by the ‹overseer of wells› to Sulpicius Serenus, procurator Augusti. Sulpicius Serenus is already known by two inscriptions, one being I.Memnon 20, where his function after the three militae equestres is in lacuna. The other one is I.Pan 87, where he commemorates his victory over the nomadic tribe of the Agriophagi, but does not mention his title. There are numerous clues that his procuratorship is, in fact, the praefectura of Berenice. A prosopographic table of the prefects of Berenice, taking into account unpublished material from the praesidium of Didymoi, is appended.Un ostracon grec récemment trouvé au praesidium de Dios (le Iovis de l’Itin.Ant.), dans le désert Oriental égyptien, invite à repenser la place de la préfecture de Bérénice dans le cursus équestre. Il s’agit d’un rapport de mission, assorti d’une demande de moyens en main-d’œuvre et en matériel métallurgique, adressé par l’«épimélète des puits» à Sulpicius Serenus, procurator Augusti. Ce personnage est déjà connu par deux inscriptions: I. Memnon 20, où le poste occupé après ses trois milices équestres est en lacune, et I. Pan 87, où, sans indiquer sa fonction, il commémore sa victoire sur la tribu nomade des Agriophages. De nombreux indices concordants montrent que la procuratèle occupée n’est autre que la préfecture du désert de Bérénice. En annexe: tableau prosopographique des préfets de Bérénice (prenant en compte la documentation inédite de Didymoi)

Super-heavy fermion material as metallic refrigerant for adiabatic demagnetization cooling

Low-temperature refrigeration is of crucial importance in fundamental research of condensed matter physics, as the investigations of fascinating quantum phenomena, such as superconductivity, superfluidity and quantum criticality, often require refrigeration down to very low temperatures. Currently, cryogenic refrigerators with $^3$He gas are widely used for cooling below 1 Kelvin. However, usage of the gas is being increasingly difficult due to the current world-wide shortage. Therefore, it is important to consider alternative methods of refrigeration. Here, we show that a new type of refrigerant, super-heavy electron metal, YbCo$_2$Zn$_{20}$, can be used for adiabatic demagnetization refrigeration, which does not require 3He gas. A number of advantages includes much better metallic thermal conductivity compared to the conventional insulating refrigerants. We also demonstrate that the cooling performance is optimized in Yb$_{1-x}$Sc$_x$Co$_2$Zn$_{20}$ by partial Sc substitution with $x\sim$0.19. The substitution induces chemical pressure which drives the materials close to a zero-field quantum critical point. This leads to an additional enhancement of the magnetocaloric effect in low fields and low temperatures enabling final temperatures well below 100 mK. Such performance has up to now been restricted to insulators. Since nearly a century the same principle of using local magnetic moments has been applied for adiabatic demagnetization cooling. This study opens new possibilities of using itinerant magnetic moments for the cryogen-free refrigeration

Archaeology and Philology on Mons Claudianus 1987-1993

Bülow-Jacobsen Adam. Archaeology and Philology on Mons Claudianus 1987-1993. In: Topoi, volume 6/2, 1996. pp. 721-730