Subramonia Sarma

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Visual cortex neurons have receptive fields resembling oriented bandpass filters, and their response distributions on natural images are non-Gaussian. Inspired by this, we previously showed that comparing the response distribution to normal distribution with the same variance gives a good thresholding criterion for detecting salient levels of edginess in(More)
Salient contour detection is an important low-level visual process in the human visual system, and has significance towards understanding higher visual and cogni-tive processes. Salience detection can be investigated by examining the visual cortical response to visual input. Visual response activity in the early stages of visual processing can be(More)
Norplant implants were removed from fifty (50) patients using a modified approach to Norplant implant removal (Emory Method). Eighty-eight percent (88%) of the removals were accomplished in less than 10 minutes using this technique. The average time for removal of Norplant implants from 50 women included in the current study was 8 minutes. The Emory Method(More)
OBJECTIVE The purpose of this article is to present a case of pelvic inflammatory disease (PID) after cryotherapy and to discuss the need for routine testing of gonococcal and chlamydial infections at the time of cryotherapy and prophylactic antibiotics. METHODS AND MATERIALS A 21-year-old nulliparous woman was treated with cryotherapy for low-grade(More)
OBJECTIVE To examine the use, effectiveness, acceptability, and continuation rates of the copper T 380 A intrauterine device (IUD) among women attending an inner-city family planning clinic. DESIGN A 1-year prospective cohort study. SETTING The family planning clinic of Grady Memorial Hospital, which serves the inner-city indigent population of Fulton(More)
Deeply inserted, nonpalpable contraceptive implants can often be removed easily using 6-8 cm3 of 1% lidocaine and a single 1 cm incision. There is no need for suturing of the incision. The location of nonpalpable implants not retrieved by this procedure can be determined by a plain, soft tissue x-ray (standard AP and lateral and internal oblique; 45-55 kVP)(More)
Injury to major neurovascular structures of the upper arm is a complication to be kept in mind, especially during difficult levonorgestrel implant removal. The risk of such an injury may be higher if the implants are inserted deeply over the brachial groove, where four major structures, namely, the basilic vein, the ulnar and median nerves, and the brachial(More)
Norplant is a safe, effective contraceptive which is associated with long continuation rates. However, the problem of irregular bleeding causes many women to request removal of the implants. This situation can be ameliorated if women are properly counseled and advised to avoid the contraceptive implant if an altered pattern of bleeding will likely be(More)
Norplant implants can be removed easily, if inserted properly. When they are inserted deeply and can not be palpated, or if they are located close to the neurovascular structures of the upper arm, radiological guidance may be needed to locate and remove the implants without causing injury to the surrounding vital structures. Digital subtraction fluoroscopic(More)
The Norplant contraceptive implant system is a commonly used method of contraception worldwide. Implant placement and removal are usually simple office-based outpatient procedures. Norplant removal can occasionally become difficult, usually secondary to improper insertion. In these instances, we describe a method of Norplant removal that can easily be(More)
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