Frecuencia del canalis sinuosus evaluados en tomografías computarizadas de haz cónico en un centro radiológico, Lima 2021

      Objective: The objective of this research study was to obtain the frequency of the canalis sinuosus evaluated in cone beam computed tomography in a Lima 2021 radiological center. Materials and Methods: The type of study was basic, non-experimental, cross-sectional and retrospective. 235 tomographic plates between the ages of 18 to 59 years were evaluated. A data collection form was used, which had 6 items, where the frequency of the canalis sinuosus evaluated in Cone-Beam Computed Tomography. Results: Was determined It was found that 33.6% had canalis sinuosus, according to sex 36.2% was more frequent in women, according to the age group the highest frequency of canal sinuosus was between 20 to 59 years, according to the path of the dental piece the highest channel sinuosus frequency was 27.2 % where it was present in the piece 2,2 ; according to the side found, 51.1% was on the right side, and according to the location, 58.2% were bilateral. Conclusions: It was concluded that the frequency of the canalis sinuosus has little presence in the cases evaluated.     Objetivo: Obtener la frecuencia del canalis sinuosus evaluados en tomografía computarizada de haz cónico en un centro radiológico Lima 2021. Materiales y Métodos: El tipo de estudio fue básico, no experimental, transversal y retrospectivo. Se evaluaron 235 placas tomográficas entre las edades de 18 a 59 años. Se utilizó una ficha de recolección de datos, el cual tuvo 6 items, donde se determinó la frecuencia del canalis sinuosus evaluados en Tomografía computarizada de has cónico. Resultados: Se halló que el 33,6% presenta canalis Sinuosus, según sexo el 36.2% fue más frecuente en mujeres, según el grupo etáreo la mayor frecuencia de canal sinuosus fue entre los 30 a 59 años, según el recorrido de la pieza dentaria la mayor frecuencia de canal sinuosus fue de 27.2% donde estuvo presente en la pieza 2,2 ; según  el lado  se encontró el 51.1% fue del lado derecho y según la ubicación el 58.2% fue bilateralmente. Conclusiones: Se concluyó que la frecuencia del canalis sinuosus tiene poca presencia en los casos evaluados.

Ultralight vector dark matter search using data from the KAGRA O3GK run

Among the various candidates for dark matter (DM), ultralight vector DM can be probed by laser interferometric gravitational wave detectors through the measurement of oscillating length changes in the arm cavities. In this context, KAGRA has a unique feature due to differing compositions of its mirrors, enhancing the signal of vector DM in the length change in the auxiliary channels. Here we present the result of a search for U(1)B−L gauge boson DM using the KAGRA data from auxiliary length channels during the first joint observation run together with GEO600. By applying our search pipeline, which takes into account the stochastic nature of ultralight DM, upper bounds on the coupling strength between the U(1)B−L gauge boson and ordinary matter are obtained for a range of DM masses. While our constraints are less stringent than those derived from previous experiments, this study demonstrates the applicability of our method to the lower-mass vector DM search, which is made difficult in this measurement by the short observation time compared to the auto-correlation time scale of DM