Field infiltration measurement is often a tedious task thus can be easily estimated from proposed infiltration models. The Horton equation is one of the popular models used in the characterization of field infiltratio...Field infiltration measurement is often a tedious task thus can be easily estimated from proposed infiltration models. The Horton equation is one of the popular models used in the characterization of field infiltration. In this study, the least square curve firing technique was employed to estimate the model parameters from fifteen field measured data and gave resultant mean regression coefficients （R2） value of 0.811. Furthermore, plotting the measured against the calculated infiltration rate for the first six （6） measurement points yielded R2 values close to unity in the regression curve indicating a marked relationship between the two. This indicates that the Horton infiltration model can be applied to estimate infiltration characteristics of soils in Samaru, Northern Guinea Savanna of Nigeria.展开更多
Prolonged obstructed labor is a critical intrapartum emergency. This intricacy is, however, unusual as a primary presentation of a giant bladder calculus. We report a case of a 25-year-old Para 6 + 1, who presented wi...Prolonged obstructed labor is a critical intrapartum emergency. This intricacy is, however, unusual as a primary presentation of a giant bladder calculus. We report a case of a 25-year-old Para 6 + 1, who presented with a history of labor pains of 72 hours duration. She had background lower urinary tract symptoms with supra-pubic swelling and hematuria of 2 years duration. She had a single antenatal visit at 32 weeks however;no obstetric ultrasound scan was done before she went into labor. Examination revealed a highly placed fetal head with increase fetal heart rate. There was a hard mass bulging under the anterior vaginal wall. The diagnosis was a prolonged obstructed labor secondary to bladder mass with fetal distress was made. She had a caesarean section (CS) with the delivery of fresh stillborn. The bi-manually palpable bladder mass persisted post-CS. Her abdominopelvic ultrasound scan and abdominal X-ray post-CS revealed giant vesical calculus with obstructive uropathy. Urine microscopy culture and sensitivity yielded E. coli sensitive to Ciprofloxacin;other laboratory investigations were normal. She was treated for UTI and 2 weeks post-CS, she had opened cystolithotomy. The stone weighed 536 g. Her postoperative recovery was uneventful.展开更多
文摘Field infiltration measurement is often a tedious task thus can be easily estimated from proposed infiltration models. The Horton equation is one of the popular models used in the characterization of field infiltration. In this study, the least square curve firing technique was employed to estimate the model parameters from fifteen field measured data and gave resultant mean regression coefficients （R2） value of 0.811. Furthermore, plotting the measured against the calculated infiltration rate for the first six （6） measurement points yielded R2 values close to unity in the regression curve indicating a marked relationship between the two. This indicates that the Horton infiltration model can be applied to estimate infiltration characteristics of soils in Samaru, Northern Guinea Savanna of Nigeria.
文摘Prolonged obstructed labor is a critical intrapartum emergency. This intricacy is, however, unusual as a primary presentation of a giant bladder calculus. We report a case of a 25-year-old Para 6 + 1, who presented with a history of labor pains of 72 hours duration. She had background lower urinary tract symptoms with supra-pubic swelling and hematuria of 2 years duration. She had a single antenatal visit at 32 weeks however;no obstetric ultrasound scan was done before she went into labor. Examination revealed a highly placed fetal head with increase fetal heart rate. There was a hard mass bulging under the anterior vaginal wall. The diagnosis was a prolonged obstructed labor secondary to bladder mass with fetal distress was made. She had a caesarean section (CS) with the delivery of fresh stillborn. The bi-manually palpable bladder mass persisted post-CS. Her abdominopelvic ultrasound scan and abdominal X-ray post-CS revealed giant vesical calculus with obstructive uropathy. Urine microscopy culture and sensitivity yielded E. coli sensitive to Ciprofloxacin;other laboratory investigations were normal. She was treated for UTI and 2 weeks post-CS, she had opened cystolithotomy. The stone weighed 536 g. Her postoperative recovery was uneventful.
