Paginacija
-
-
Measurement of the 58Ni neutron capture cross section
-
Petar Žugec The (n, γ) cross section of 58Ni – of importance for the nuclear astrophysics, as well as for nuclear technologies – was measured at the neutron time-of-flight facility n_TOF at CERN. For the measurement, two C6D6 liquid scintillation detectors were used, specifically optimized to provide as low neutron sensitivity as possible. At n_TOF, the highly luminous white neutron beam covers 12 orders of magnitude in energy – from 10 meV to 10 GeV. It is produced by a pulsed beam of 20 GeV...
-
-
Measurement of the p(e, e' π+)n reaction with the short-orbit spectrometer at Q2 = 0.078 (GeV/c)2
-
Ivica Friščić The precise measurement of the cross section for the p(e, e' π+)n reaction at certain kinematics, allows one to separate the cross section into quantities at a given four-momentum transfer Q2, which carry the information about the nucleon structure. Since the data at low Q2 are not known with an intended precision, a new measurement of the p(e, e' π+)n reaction was performed at Q2 = 0.078 (GeV/c)2 and at an invariant mass of W = 1094 MeV - approximately 15 MeV above the reaction threshold....
-
-
Mechanically flexible crystals of cadmium(II) coordination polymers
-
Mateja Pisačić Mechanically responsive crystals have recently attracted the attention of a wide scientific
community, but the origin of this remarkable crystal behaviour is still unclear. This thesis
provides a systematic study of mechanically induced crystal flexibility on a series of onedimensional crystalline cadmium(II) coordination polymers, which provided a valuable dataset
of different structural architectures, morphologies, and an unexpectedly wide range of variable
mechanical responses. A...
-
-
Mechanochemical synthesis and structural characterization of bimetallic and hybrid tetrahydridoborates
-
Sanja Burazer Mechanochemical reactions of metal tetrahydridoborates and metal imidazolates, as well as the structural characteristics of the obtained products were investigated. X-ray powder diffraction, both at the laboratory diffractometer and in-situ high-temperature diffraction under the synchrotron radiation was mainly used experimental technique. NMR was used as a complementary technique. Combination of molecular building blocks of lithium borohydride, LiBH4, and lithium imidazolate, LiIm, led to...
-
-
Mehanizam aromatizacije 4-supstituiranih-1,4-dihidropiridina
-
Maja Regović Hantzschovom ciklizacijom pripravljen je niz 1,4-dihidropiridinskih spojeva (1,4-DHP) s različitim supstituentima na položajima 3, 4 i 5. Iz njih su sintetizirani određeni piridinski spojevi koji su korišteni kao standardi prilikom analize omjera dealkilnog i alkilnog produkta na položaju 4 visokodjelotvornom tekućinskom kromatografijom. Za reakciju aromatizacije 1,4-DHP ispitan je niz različitih reakcijskih uvjeta i oksidansa: metalni, tritilijev i tropilijev tetrafluoroborat,...
-
-
Mehanizmi nastajanja biokompozitnih materijala u sustavima kalcijeva karbonata i biološki značajnih molekula
-
Lara Štajner Biomineralizacija je proces nastajanja slabo topljivih soli u živim organizmima, uz prisustvo biološki značajnih makromolekula. Nastajanje biokompozita specifičnih fizičko-kemijskih svojstava predložak je za biomimetičku sintezu novih funkcionalnih materijala. Kalcijev karbonat odabran je kao model biomineralizacije zbog složenosti sustava i makromolekula koje u tom procesu sudjeluju.
Sustavno je istraženo djelovanje malih organskih molekula (aminokiseline, dipeptidi i derivati...
-
-
Mehanizmi ostvarivanja supstratne specifičnosti u sintetskom i korektivnom mjestu izoleucil-tRNA-sintetaze
-
Igor Živković Izoleucil-tRNA-sintetaza (IleRS) u sintetskom mjestu katalizira nastajanje Ile-tRNAIle za
biosintezu proteina. IleRS može pogrešno aminoacilirati i strukturno, odnosno kemijski, slične
nepripadne aminokiseline poput valina i norvalina što je toksično za stanicu. Kako bi popravila
vlastitu pogrešku, IleRS hidrolizira misaminoaciliranu tRNAIle u zasebnom, korektivnom
mjestu. U sklopu ove disertacije različitim kinetičkim metodama, uz široki spektar nepripadnih
aminokiselina,...
Paginacija
