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      • KCI등재

        Erectile dysfunction and cancer: current perspective

        Renu Madan,Chinna Babu Dracham,Divya Khosla,Shikha Goyal,Arun Kumar Yadav 대한방사선종양학회 2020 Radiation Oncology Journal Vol.38 No.4

        Erectile dysfunction (ED) is one of the major but underreported concerns in cancer patients and survivors. It can lead to depression, lack of intimacy between the couple, and impaired quality of life. The causes of erectile dysfunction are psychological distress and endocrinal dysfunction caused by cancer itself or side effect of anticancer treatment like surgery, radiotherapy, chemotherapy and hormonal therapy. The degree of ED depends on age, pre-cancer or pre-treatment potency level, comorbidities, type of cancer and its treatment. Treatment options available for ED are various pharmacotherapies, mechanical devices, penile implants, or reconstructive surgeries. A complete evaluation of sexual functioning should be done before starting anticancer therapy. Management should be individualized and couple counseling should be an integral part of the anticancer treatment.

      • Analysis of Satellite Image Filter for RISAT : A Review

        Renu Gupta,Abhishek Tiwari,Pallavi Khatri 보안공학연구지원센터 2015 International Journal of Grid and Distributed Comp Vol.8 No.5

        Satellites today are prime source of information capture and decision making for research organizations, corporate houses and government departments like weather forecasting, agricultural monitoring etc. Accurate and timely retrieval of data is key challenge for satellites today. The major issue with information capture is mixing of unwanted signals called noise with required vital data which leads to malfunctioning of decision making process. In order to overcome the issue, it becomes a mandate today to design and develop specific filters to different satellites which are problem specific and capable of tuning the captured information in various formats in robust manner. In this work, a review of Satellite image filter for RISAT is presented. These filters work on visible, infrared and water vapor images which are taken from satellites.

      • KCI등재

        Experimental investigation of effective atomic numbers for some binary alloys

        Renu Sharma,J.K. Sharma,Taranjot Kaur,Tejbir Singh,Jeewan Sharma,Parjit S. Singh 한국원자력학회 2017 Nuclear Engineering and Technology Vol.49 No.7

        In the present work, the gamma ray backscattering technique was used to determine the effective atomic numbers for certain binary alloys. With the help of a muffle furnace, the binary alloys were synthesized using the melt quenching technique with different compositions of 82Pb, 50Sn, and 30Zn. The intensity distribution of backscattered photons from radioactive isotope 22Na (511 keV) was recorded with the help of GAMMARAD5 [76 mm × 76 mm NaI(Tl) scintillator detector] and analyzed as a function of both atomic number and thickness of the target material. The effective atomic numbers for the same binary alloys were also computed theoretically using the atomic to electronic cross-section method with the help of the mass attenuation coefficient database of WinXCom (2001). Good agreement was observed between theoretical and experimental results for the effective atomic numbers of all the selected alloys.

      • KCI등재

        A Versatile Medical Image Enhancement Algorithm Based on Wavelet Transform

        Renu Sharma,Madhu Jain 한국정보처리학회 2021 Journal of information processing systems Vol.17 No.6

        This paper proposed a versatile algorithm based on a dual-tree complex wavelet transform for intensifying the visual aspect of medical images. First, the decomposition of the input image into a high sub-band and low-subband image is done. Further, to improve the resolution of the resulting image, the high sub-band image is interpolated using Lanczos interpolation. Also, contrast enhancement is performed by singular value decomposition(SVD). Finally, the image reconstruction is achieved by using an inverse wavelet transform. Then, the Gaussian filter will improve the visual quality of the image. We have collected images from the hospital and the internet for quantitative and qualitative analysis. These images act as a reference image for comparing the effectiveness of the proposed algorithm with the existing state-of-the-art. We have divided the proposed algorithm into several stages: preprocessing, contrast enhancement, resolution enhancement, and visual qualityenhancement. Both analyses show the proposed algorithm's effectiveness compared to existing methods.

      • KCI등재

        Mucoepidermoid carcinoma of the trachea in a 9-year-old male child: case report and review of literature

        Renu Madan 대한방사선종양학회 2022 Radiation Oncology Journal Vol.40 No.3

        Mucoepidermoid carcinoma (MEC) is the most common malignancy of minor salivary glands inadults. Pulmonary MEC is extremely uncommon, comprising only 0.1–0.2% of the primary lung ma-lignancies and <1% of primary bronchial tumors. It is even rarer in children, and literature is limitedto a few case reports only. Here we present a case report of a 9-year-old boy diagnosed with primaryMEC of the trachea along with a review of the literature. A 9-year-old male child presented withcomplaint of dry cough for two years which was later associated with shortness of breath after oneyear. Bronchoscopic examination revealed a growth arising from right lateral wall of carina occluding50% of the lumen and detailed histopathological examination revealed it to be a MEC of the trachea. The patient underwent local excision of the tumor with primary anastomosis. Because of positivemargin, adjuvant radiotherapy of 60 Gy in 30 fractions was given to the tumor bed. The patient toler-ated the treatment well and is disease free at 6 months follow-up. Experience with MEC of the tra-chea in children is limited, and optimal treatment protocols have not been defined, with currenttreatment mainly extrapolated from MEC of the salivary glands.

      • KCI등재

        Comparative Evaluation of Pregabalin and Clonidine as Preemptive Analgesics for the Attenuation of Postoperative Pain Following Thoracolumbar Spine Surgery

        Renu Bala,Jasbir Kaur,Jyoti Sharma,Raj Singh 대한척추외과학회 2019 Asian Spine Journal Vol.13 No.6

        Study Design: Prospective, randomized, double blind, placebo-controlled study. Purpose: To compare clonidine and pregabalin with placebo for the attenuation of postoperative pain after thoracolumbar spinal surgery and instrumentation Overview of Literature: Spine surgery is associated with moderate to severe postoperative pain that needs to be controlled to improve patient’s outcome. Alpha 2 agonists (e.g., clonidine) and gabapentenoids (e.g., pregabalin) are successfully used as part of a multimodal analgesic regimen. Methods: Total 75 patients were enrolled and randomly allocated into three groups. Group P received pregabalin (150 mg), group C received clonidine (150 mcg), and group N received placebo 90 minutes preoperatively. A standard anesthesia protocol comprising fentanyl, thiopentone, vecuronium, nitrous oxide, and oxygen in isoflurane was used for all patients. Postoperative recovery profile, pain, time for first analgesic, 24-hour analgesic requirement, sedation, and hemodynamic parameters were noted. Results: Recovery profile was similar in all three groups; however, the patients in group P and C were more sedated (p<0.05). Group N patients had a higher Visual Analog Scale (VAS) score (p<0.05) and the time for first analgesic was also lower (p=0.02). Postoperative (24-hour) analgesic requirement was maximum in group N, followed by that in group C and group P. The VAS score was highest in the control group; however, after 12 hours, it was similar in all groups. Conclusions: Postoperative pain and analgesic requirement is significantly attenuated by preoperative administration of a single dose of clonidine (150 mcg) or pregabalin (150 mg); pregabalin was more effective. Thus, their use offers a reasonable strategy for pain management in patients undergoing spine surgery.

      • SCISCIESCOPUS

        Electrical immunosensor based on dielectrophoretically-deposited carbon nanotubes for detection of influenza virus H1N1

        Singh, Renu,Sharma, Abhinav,Hong, Seongkyeol,Jang, Jaesung The Royal Society of Chemistry 2014 The Analyst Vol.139 No.21

        <P>The influenza virus has received extensive attention due to the recent H1N1 pandemics originating from swine. This study reports a label-free, highly sensitive, and selective electrical immunosensor for the detection of influenza virus H1N1 based on dielectrophoretically deposited single-walled carbon nanotubes (SWCNTs). COOH-functionalized SWCNTs were deposited on a self-assembled monolayer of polyelectrolyte polydiallyldimethyl-ammonium chloride (PDDA) between two gold electrodes by dielectrophoretic and electrostatic forces, which resulted in reproducible, uniform, aligned, and aggregation-free SWCNT channels (2-10 mu m in length). Avidin was immobilized onto the PDDA-SWCNT channels, and viral antibodies were immobilized using biotin-avidin coupling. The resistance of the channels increased with the binding of the influenza viruses to the antibodies. These immunosensors showed linear behavior as the virus concentration was varied from 1 to 10(4) PFU ml(-1) along with a detection time of 30 min. The immunosensors with a 2 mu m channel length detected 1 PFU ml(-1) of the influenza virus accurately (R-2 = 0.99) and selectively from MS2 bacteriophages. These immunosensors have the potential to become an important component of a point-of-care test kit that will enable a rapid clinical diagnosis.</P>

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