Modalidad de obtención de grado y/o título sin designación de asesor

l objetivo principal del presente trabajo es determinar la Hemorragia Postparto Inmediato por retención de restos placentarios en el Hospital San José de Chincha La hemorragia postparto (HPP) es una de las complicaciones obstétricas más común de pérdida importante de sangre en Obstetricia y es una de las tres primeras causas de mortalidad materna en el mundo.

In this work was studied the adsorption of sunset yellow dye with different type of activatedcarbon obtained from vegetable waste. The carbons were characterized by infraredspectroscopy, X-ray diffraction and electron microscopy, obtaining typical results forcarbonaceous materials. Surface areas of activated carbon were determined by nitrogenisotherms. Similarly, dye removal isotherms were evaluated taking into account, contact timeeffect, pH, initial concentration and amount of adsorbent. Corn cob carbons, showed highestremoval percentage with respect at the carbons of coconut husks and rice husks. Langmuir’sisotherm model is adjusted more appropriately to these results. We found that, pseudo secondorder kinetics model describes in good agreement the adsorption of sunset yellow dye withactivated carbons.

In this research we have designed electron donors D-π-A type containing two different π fragments to obtain anthrapyrrole (D-APR-A) and anthratiophene (D-ATF-A) derivatives, proposed for the use in organic bulk hetero-junction (BHJ) solar cells (OSCs). These derivatives were characterized by DFT and TD-DFT calculations. For all the electron donors the anchorage fragment was 2-methylenemalononitrile, while the chromophore fragment was spanned between diphenylamine, triphenylamine, thiophene. Estimation of the energy from HOMO and LUMO orbitals was discussed. Properties affecting open-circuit photovoltage (VOC) and short-circuit photocurrent (JSC) from D-π-A type derivatives were investigated, such as geometric structure, exciton driving force energy, energy gap and absorption spectra. Theoretical calculations from TD-DFT within Coulumb Attenuation Method CAM-B3LYP were able to predict ...