Enrique Escamilla Hernández

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This paper presents a fast and accurate automatic voice recognition algorithm. We use Mel frequency Cepstral Coefficient(MFCC) to extract the features from voice and Vector quantization technique to identify the speaker, this technique is usually used in data compression, it allows to model a probability functions by the distribution of different vectors,(More)
The objective of this study was to identify the rate of anal sphincter lacerations in a large population-based database and analyze risk factors associated with this condition. Data were obtained from Pennsylvania Healthcare Cost Containment Council (PHC4) regarding all cases of obstetrical third and fourth degree perineal lacerations that occurred during a(More)
OBJECTIVE The purpose of this study was to examine the correlation in the assessment of laparoscopic surgical skills in medical students with the use of a virtual reality laparoscopic trainer and a low-fidelity video box trainer with comparative tasks. STUDY DESIGN Third-year medical students were asked to perform 3 basic skills set modules on LapSim(More)
OBJECTIVE To estimate the rate of recurrence of anal sphincter lacerations in subsequent pregnancies and analyze the risk factors associated with recurrent lacerations METHODS Data were obtained from the Pennsylvania Health Care Cost Containment Council, Division of In-Patient Statistics, regarding all cases of third- and fourth-degree perineal(More)
Implementing and evaluating smoking cessation interventions in underserved populations has been found difficult due to high rates of non-adherence to the prescribed protocol. To understand better the barriers to cessation participation, we studied low-income inner-city pregnant women who were enrolled in either a standard or highly intensive quit smoking(More)
Objective: To evaluate the accuracy of pelvic ultrasonography, and the characteristics of women with inaccurate ultrasonographic diagnosis for uterine leiomyomas. Materials and methods: Preoperative pelvic ultrasonographic and postoperative pathologic findings of all women, who underwent hysterectomies for pelvic pain, menorrhagia and/or leiomyomas between(More)
Our objective was to review our experience and attempt to identify risk factors for ureteral injury during gynecologic surgery for benign conditions. A retrospective chart review was performed of all cases of ureteral injury during gynecologic surgery for benign conditions, at Temple University Hospital, from January 1992 to September 2002. We analyzed(More)
OBJECTIVE To describe the trend in the rate of shoulder dystocia over twenty-four years and identify the risk factors related to the occurrence of dystocia. METHODS Data was obtained from Maryland State regarding all vaginal deliveries that occurred during six different time periods at five-year intervals since 1979. Trends in the rate of shoulder(More)
To characterize the barriers and facilitators thatprevent postpartum relapse and maintain smoking abstinence among a socioeconomically underserved population, recruited through Philadelphia-area women, infants, and children clinics, in-person interviews were conducted with 30 women who had quit smoking for one or more pregnancies in the past 3 years to(More)