Search results for "sama"

Sociología, Derecho y desigualdades sociales. Una propuesta de docencia universitaria crítica

2019

Fil: Di Nella, Dino. Universidad Nacional de Río Negro. Río Negro, Argentina. Fil: Almeda, Elisabet. Universidad de Barcelona. Catalunya, España. Fil: Camps Calvet, Clara. Universidad de Barcelona. Catalunya, España. Fil: Giordana, Patricia. Universidad Nacional de Río Negro. Río Negro, Argentina. Fil: Loggiacco, Camila. Universidad Nacional de Río Negro. Río Negro, Argentina. Fil: D'Alfonso, Luis. Universidad Nacional de Río Negro. Río Negro, Argentina. Critic education in human rights and social inequalities must be able to capture holistic and mutidmiensional sphere that Human Rights requires. This study introduces the basis in which critic university teaching proposal is carectarized by…

Spectroscopic and physicochemical properties of rare-earth phthalocyanines entrapped in sol-gel glasses

1997

Abstract The electronic absorption spectra of samarium and neodymium phthalocyanines in DMSO and entrapped in glasses obtained via the sol-gel technique have been obtained. Decrease in concentration of metallophtalocyanines in DMSO leads to observed changes in the relative intensifies of the two bands in the Q-band region. This behavior could be explained by the shifts in equilibrium between the LnPc 2 and LnPc + forms, caused by the dilution. In view of this interpretation, the entrapment of the metallophthalocyanines in the sol-gel glass matrices shifts the diphthalocyanine ⇆ monophthalocyanine equilibrium towards the monophthalocyanine (LnPc + ) form.

XAFS study of gadolinium and samarium bisporphyrinate complexes.

2001

The comparative X-ray absorption spectroscopy study of gadolinium and samarium bisporphyrinate complexes represented by the formulas Gd(III)H(oep)(tpp), Gd(III)(oep)(2), Gd(III)H(tpp)(2) and Sm(III)H(oep)(tpp), Sm(III)(oep)(2), Sm(III)H(tpp)(2) is reported. The XAFS spectra are recorded on the LURE-DCI storage ring (Orsay, France) in transmission mode on the microcrystalline samples at the Gd and Sm L(3) edges. The local environment for Ln(3+) ions has been reconstructed applying one-shell and two-shell XAFS analysis procedures. The protonated and nonprotonated bisporphyrinate complexes present different XAFS features. After our analysis on the title derivatives, the gadolinium ion (at 80 K…

Preparation and photoactivity of samarium loaded anatase, brookite and rutile catalysts

2011

Abstract Pure and samarium loaded anatase, brookite and rutile nanopowders were synthesized by thermohydrolysis of TiCl 4 . The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), specific surface area (SSA) determination, UV–vis diffuse reflectance spectroscopy (DRS), atomic force microscopy (AFM), contact angle (CA) measurements and photoluminescence (PL) spectroscopy. The photocatalytic activity of pure and Sm-loaded TiO 2 polymorphs was investigated by employing the photodegradation of 4-nitrophenol as probe reaction in a liquid-solid system. Loading with Sm resulted in an improvement of the photoreactivity of the three TiO 2 polymorphs. The benefi…

Darba samaksas un motivēšanas sistēmas novērtējums un tā pilnveides iespējas Daugavpils pilsētas “X” pirmsskolas izglītības iestādē.

2018

Darba autore: Jūlija Guseļščikova Darba tēma: Darba samaksas un motivēšanas sistēmas novērtējums un tā pilnveides iespējas Daugavpils pilsētas “X” pirmsskolas izglītības iestādē. Darba mērķis ir pētīt darba samaksas un motivēšanas sistēmu iestādē un izstrādāt priekšlikumus tā pilnveidei. Darba mērķa sasniegšanai ir izvirzīti šādi uzdevumi: 1.Izpētīt darba samaksas un motivēšanas sistēmas teorētiskos aspektus, balstoties uz zinātnisko literatūru un LR normatīvajiem dokumentiem. 2.Sniegt iestādes raksturojumu. 3.Izpētīt esošo darba samaksas un motivēšanas sistēmas elementus un to pielietojumu iestādē. 4.Veikt darbinieku attieksmes pret darba samaksas un motivācijas sistēmu iestādē pētījumu (a…

Piedziņas vēršana uz darba samaksu un tai pielīdzinātiem maksājumiem.

2018

Bakalaura darbs veltīts piedziņas vēršanas uz darba samaksu un tai pielīdzināmiem maksājumiem izvērtēšanai. Bakalaura darba mērķis ir pētīt piedziņas būtību, piedziņas vēršanas uz mantu vispārīgo kārtību, piedziņas vēršanas uz personas naudas līdzekļiem īpatnības, kā arī piedziņas vēršanu pret nepilngadīgas personas darba samaksu un citiem naudas līdzekļiem. Lai sasniegtu bakalaura darba mērķi, autors ir aplūkojis Latvijas un ārvalstu normatīvos aktus, juridisko literatūru, publikācijas, kā arī Latvijas tiesu praksi. Bakalaura darba pētījuma rezultātā izstrādāti secinājumi un priekšlikumi sprieduma izpildes institūta uzlabošanai, kā arī Civilprocesa likuma un Darba likuma grozījumiem. Atslē…

Mass-asymmetric fission in the 40ca+142Nd reaction

2016

Shell effects play a major role in fission. Mass-asymmetric fission observed in the spontaneous and low energy fission of actinide nuclei was explained by incorporating the fragment shell properties in liquid drop model. Asymmetric fission has also been observed in the low energy fission of neutron-deficient 180 Hg nuclei in recent β -delayed fission experiments. This low-energy β -delayed fission has been explained in terms of strong shell effects in pre-scission configurations associated with the system after capture. Calculations predicted asymmetric fission for heavier Hg isotopes as well, at compound nuclear excitation energy as high as 40 MeV. To explore the evolution of fission fragm…

Anthropology of Political, Social and Cultural Memory: Practices in Central and Eastern Europe: Program & Abstracts : International Scientific Confer…

2020

The effect of automated taxa identification errors on biological indices

2017

In benthic macroinvertebrate biomonitoring systems, the target is to determine the status of ecosystems based on several biological indices. To increase cost-efficiency, computer-based taxa identification for image data has recently been developed. Taxa identification errors can, however, have strong effects on the indices and thus on the determination of the ecological status. In order to shift the biomonitoring process towards automated expert systems, we need a clear understanding on the bias caused by automation. In this paper, we examine eleven classification methods in the case of macroinvertebrate image data and show how their classification errors propagate into different biological…

Structure of low-lying states in 140Sm studied by Coulomb excitation

2016

The electromagnetic structure of 140Sm was studied in a low-energy Coulomb excitation experiment with a radioactive ion beam from the REX-ISOLDE facility at CERN. The 2+ and 4+ states of the ground-state band and a second 2+ state were populated by multistep excitation. The analysis of the differential Coulomb excitation cross sections yielded reduced transition probabilities between all observed states and the spectroscopic quadrupole moment for the 2+ 1 state. The experimental results are compared to large-scale shell model calculations and beyond-mean-field calculations based on the Gogny D1S interaction with a five-dimensional collective Hamiltonian formalism. Simpler geometric and alge…