Il-qima ta' Ġunone u l-Knisja ta' Santa Maria della Porta

Ġunone kienet meqjuma f’dawn il-gżejjer sa minn żmien il-Feniċi. Il-kittieba jgħidu li kienu waqqfulha maqdes fuq il-għolja fejn illum jinsab Sant’Anġlu. L-awtur jgħid li meta saru t-tiswijiet fil-bini tal-Imdina, kellha tinħatt ukoll fuq il-Knisja ta’ Santa Maria della Porta. Fejn kienet din il-knisja saret biċċa mill-bitħa tal-Palazz Maisterjali li llum hu magħruf bħala Connaught Hospital. Din l-informazzjoni joħodha minn dak li sab fl-arkivji G. Darmanin-Demajo.N/

Il-fjuretti ta' S. Franġisk

Il-Fjuretti ta’ San Franġisk jittrattaw dwar il-ħajja ta’ San Franġisk u tal-ewwel dixxiplu tiegħu. Dawn il-fjuretti huma traduzzjoni bit-Taljan u li l-oriġinal tagħhom inkitbu bil-Latin ftit wara l-1322.N/

Three Li-rich K giants: IRAS 12327-6523, IRAS 13539-4153, and IRAS 17596-3952

We report on spectroscopic analyses of three K giants previously suggested to be Li-rich: IRAS 12327-6523, IRAS 13539-4153, and IRAS 17596-3952. High-resolution optical spectra and the LTE model atmospheres are used to derive the stellar parameters: ($T_{\rm eff}$, log $g$, [Fe/H]), elemental abundances, and the isotopic ratio $^{12}$C/$^{13}$C. IRAS 13539-4153 shows an extremely high Li abundance of $\log\epsilon$(Li) $\approx$ 4.2, a value ten times more than the present Li abundance in the local interstellar medium. This is the third highest Li abundance yet reported for a K giant. IRAS 12327-6523 shows a Li abundances of $\log\epsilon$(Li)$\approx$ 1.4. IRAS 17596-3952 is a rapidly rotating ($V{\sin i}$ $\approx$ 35 km s$^{-1}$) K giant with $\log\epsilon$(Li) $\approx$ 2.2. Infrared photometry which shows the presence of an IR excess suggesting mass-loss. A comparison is made between these three stars and previously recognized Li-rich giants.Comment: 17 pages, 6 figures, accepted for A

Boron-10 loaded inorganic shielding material

Shielding material containing Boron 10 and gadoliunium for neutron absorption has been developed to reduce interference from low energy neutrons in measurement of fission neutron spectrum using Li-6 fast neutron spectrometer

O(s) meu(s) livro(s).

O título desta sub-secção, que decidimos abrir, começa por ser, para mim, problemático. Porque muitos foram os livros da minha vida. Particularmente, na minha adolescência e juventude, em que, autenticamente, me assumi como consumidora activa e "devoradora" de livros. Muito li nessa época, umas vezes por obrigação, (escola, a quanto obrigas!), a maior parte das vezes por prazer e fruição

NMR and LDA evidence for spiral magnetic order in the chain cuprate LiCu2O2

We report on {6,7}Li nuclear magnetic resonance measurements of the spin-chain compound LiCu2O2 in the paramagnetic and magnetically ordered states. Below T about 24 K the NMR lineshape presents a clear signature of incommensurate (IC) static modulation of the local magnetic field consistent with an IC spiral modulation of the magnetic moments. {7}Li NMR reveals strong phason-like dynamical fluctuations extending well below 24 K. We hypothesize that a series of phase transitions at 24.2, 22.5, and 9 K reflects a "Devil's staircase" type behavior generic for IC systems. LDA based calculations of exchange integrals reveal a large in-chain frustration leading to a magnetical spiral.Comment: 4 pages, 4 figure

Two-species mixture of quantum degenerate Bose and Fermi gases

We have produced a macroscopic quantum system in which a Li-6 Fermi sea coexists with a large and stable Na-23 Bose-Einstein condensate. This was accomplished using inter-species sympathetic cooling of fermionic Li-6 in a thermal bath of bosonic Na-23