Numerus maurorum Hisp

Sin resume

Antioxidant Activity and Phenolic Content of Sweet Cherries (Prunus Avium L.) from West and South-West of Romania

A diet rich in fruits and vegetables is associated with a lower incidence of degenerative diseases (such as cardiovascular disease and certain types of cancers). Currently, most research is focused on the content of polyphenols and antioxidant compounds found in fruit and vegetable. Sweet cherries (Prunus avium L.) contain a significant amount of polyphenols and several antioxidants that possess many biological activities such as anticancer, antioxidant and anti-inflammation properties. In present study were investigated the quantification of total polyphenols and antioxidant capacity in fruits of a number of selected sweet cherry genotypes. Although sweet cherry fruits are a significant source of different phenolic compounds, antioxidant activity of sweet cherries is not related only with the total phenolic content. Â

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

Cercetări în necropola Sucidavei, jud. Olt (1968) / Recherches dans la nécropole de Sucivada, dép. d’Olt (1968)

Petolescu Constantin C., Onea Oct. Cercetări în necropola Sucidavei, jud. Olt (1968) / Recherches dans la nécropole de Sucivada, dép. d’Olt (1968). In: Materiale şi cercetări arheologice, N°10 1973. pp. 125-140

Cercetările din castrul cu val de pământ de la Câmpulung (cartierul Pescăreasa), 1987—1989 / Les recherches du camp à vallum en terre de Câmpulung (Pescăreasa), 1987—1989

Petolescu Constantin C., Cioflan Teodor. Cercetările din castrul cu val de pământ de la Câmpulung (cartierul Pescăreasa), 1987—1989 / Les recherches du camp à vallum en terre de Câmpulung (Pescăreasa), 1987—1989. In: Materiale şi cercetãri arheologice (Serie nouã), N°1 2001. 1999. pp. 215-220

Noi cercetări arheologice din castrul de la Câmpulung (Pescăreasa, punct Jidova) (2010–2015) / New archaeological research at the Roman fort from Câmpulung (Pescăreasa, Jidova location) (2010– 2015)

Recent archaeological excavations carried out between 2010 and 2015 in the central area of the Câmpulung Roman fort (latus praetorii dextrum) indicated that the small double apse building with underfloor heating located between the headquarters and the granary, was a later construction, dated towards the middle of the 3rd century CE. Prior to its construction, a timber building existed on the spot, a possible timber granary (horreum), judging by its dimensions (33 × 9 m2), comparable with the size of the stone granary. Such timber granaries are common within the Roman auxiliary forts, especially during the earth-timber construction phases. This timber granary was destroyed by fire sometime during or after the reign of Severus Alexander. The area was covered with gravel and the double apse building was constructed, along with a well ( ?) in front of it ; unfortunately, it is impossible, up to this moment, to establish its function.Cercetările arheologice din anii 2010 2015, în zona centrală a castrului de la Câmpulung (latus praetorii dextrum), au arătat că edificiul de mici dimensiuni cu hipocaust, dispus între horreum și principia, a fost construit mai târziu, probabil către mijlocul secolului al III-lea p. Chr. Anterior, spațiul a fost ocupat de o clădire de lemn și pământ, având dimensiuni comparabile cu cele ale magaziei de cereale de piatră (horreum), 33 × 9 m. Planul, dimensiunile și amplasamentul converg spre identificarea conctrucției de lemn cu o magazie de cereale. Astfel de magazii de lemn pentru cereale nu sunt ceva neobișnuit în castrele auxiliare, mai ales în fazele de lemn și pământ ale acestora. Acest horreum de lemn a fost distrus de un incendiu cândva în timpul sau după domnia lui Severus Alexander. Spațiul a fost nivelat cu pietriș, apoi a fost construită clădirea dublu absidată, precum și un puț ( ?) în fața ei ; din păcate, funcționalitatea acestei clădiri târzii nu a putut fi stabilită.Petolescu Constantin C., Matei-Popescu Florian, Dumitrescu Ion. Noi cercetări arheologice din castrul de la Câmpulung (Pescăreasa, punct Jidova) (2010–2015) / New archaeological research at the Roman fort from Câmpulung (Pescăreasa, Jidova location) (2010– 2015). In: Materiale şi cercetãri arheologice (Serie nouã), N°17 2021. pp. 129-163