El presente estudio tuvo como objetivo identificar los helmintos gastrointestinales en ratas de Lima Metropolitana, Perú, así como cuantificar la frecuencia de infección, resaltando los resultados de aquellos helmintos de interés zoonótico. Se capturaron 53 Rattus rattus y 20 Rattus norvegicus en cinco zonas urbanas. Los tractos gastrointestinales se procesaron con la técnica de Travassos y las heces se evaluaron por observación directa en el microscopio. El 77.4% de R. rattus y el 100% de R. norvegicus estuvieron infectados con helmintos. En R. rattus se identificaron tres especies de cestodos: Hymenolepis diminuta (39.6%), Rodentolepis fraterna (7.5%) y Raillietina demerariensis (7.5%), seis especies de nematodos: Gongylonema neoplasticum (41.5%), Heterakis spumosa (13.2%), Syphacia muris (11.3%), Strongyloides ratti (15.1%), Aspiculuris tetraptera (11.3%) y Protospirura chancha...

El presente estudio tuvo como objetivo identificar los helmintos gastrointestinales en ratas de Lima Metropolitana, Perú, así como cuantificar la frecuencia de infección, resaltando los resultados de aquellos helmintos de interés zoonótico. Se capturaron 53 Rattus rattus y 20 Rattus norvegicus en cinco zonas urbanas. Los tractos gastrointestinales se procesaron con la técnica de Travassos y las heces se evaluaron por observación directa en el microscopio. El 77.4% de R. rattus y el 100% de R. norvegicus estuvieron infectados con helmintos. En R. rattus se identificaron tres especies de cestodos: Hymenolepis diminuta (39.6%), Rodentolepis fraterna (7.5%) y Raillietina demerariensis (7.5%), seis especies de nematodos: Gongylonema neoplasticum (41.5%), Heterakis spumosa (13.2%), Syphacia muris (11.3%), Strongyloides ratti (15.1%), Aspiculuris tetraptera (11.3%) y Protospirura chancha...

Population grow in recent years requires an extension of the current pipeline sanitary system. For this purpose, granular excavation and landfill works are associated with pedestrian traffic congestion. Therefore, it is necessary to develop an innovative and sustainable alternative to reduce the problems generated during the execution of the conventional process. This research proposes the use of flowable fill due to the multiple advantages offered by this material. On the one hand, it is economical for medium to large trench fill volumes, considering savings in labor (it is done with a small number of workers), in equipment (does not require the rental or purchase of compaction equipment) and in time (the pouring is done by directly pumping the mixture, from the mixing machines to the excavation). On the other hand, being self-compacting and self-leveling decreases the width of the tren...

Sixty eight patients of UNMSM Dentistry Faculty Central Clinic, ages 15 to 65 undergoing surgical or restaurative odontologic treatment, were selected and distributed into groups to determine and compare the effect of three pre-procedures mouth rinses and the dental brushing on aerobia salivary bacteria load reduction. The results showed that 0.12% Chlorhexidine Gluconate mouth rinse reduced aerobia salivary bacteria load compared to baseline in 91.4% at 5 min, and increased its effect to 93.3% at 60 min, on the contrary Fenolic antiseptic from 73.8% at 5 min decreased its effect to 63.4% at 60 min. 5% saline solution reduced bacteria in 58.3% at 5 min and persisted in 58.6% at 60 min, the reduction for dental brushing was of 53.7% at 5 min increasing its effect to 55.4% at 60 min.

Sixty eight patients of UNMSM Dentistry Faculty Central Clinic, ages 15 to 65 undergoing surgical or restaurative odontologic treatment, were selected and distributed into groups to determine and compare the effect of three pre-procedures mouth rinses and the dental brushing on aerobia salivary bacteria load reduction. The results showed that 0.12% Chlorhexidine Gluconate mouth rinse reduced aerobia salivary bacteria load compared to baseline in 91.4% at 5 min, and increased its effect to 93.3% at 60 min, on the contrary Fenolic antiseptic from 73.8% at 5 min decreased its effect to 63.4% at 60 min. 5% saline solution reduced bacteria in 58.3% at 5 min and persisted in 58.6% at 60 min, the reduction for dental brushing was of 53.7% at 5 min increasing its effect to 55.4% at 60 min.