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Tennis Racket Sign - A Forgotten Sign of Active Tuberculosis
( Kezreen Kaur Dhaliwal ),( Arvindran Alaga ) 대한결핵 및 호흡기학회 2021 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.129 No.-
Background Since its discovery in 1882, tuberculosis has remained a global concern. Cavitation is a common radiological finding in post primary tuberculosis, seen in 20%-45% of patients. Yet, the tennis racket sign is less commonly recognized as a finding of active tuberculosis. Methods We present a case series of five patients who presented to us with various symptoms such as chronic cough, fever, shortness of breath, and loss of appetite and weight. They were investigated for tuberculosis. Results All the five patients presented with the tennis racket sign on chest radiograph (Figure 1). Four of them were positive for sputum acid fast bacilli (AFB) smear. We proceeded with bronchoscopy for the patient who had negative sputum AFB. This patient’s bronchial washing for mycobacterial tuberculosis (MTB) Gene Xpert was tested to be positive. All of them were immediately started on antituberculosis treatment. They all showed significant improvement with antituberculosis treatment. The tennis racket sign reflects tuberculous infection of the bronchus. Narrowing or occlusion of the bronchus Results in dilatation of its distal part, which produces the cavity that is seen in this sign (red arrow, Figure 2). The sign’s proximal part is made up of the draining bronchus connecting to the hilum (blue arrow, Figure 2). The direct communication of the cavity with the bronchus explains the high bacterial yield observed with this sign. Conclusion The tennis racket sign should be acknowledged as an important radiological feature of active tuberculosis. The presence of this sign should prompt a clinician to initiate a search for tuberculosis and its treatment.
Design of Digital FIR Filter Using Hybrid SIMBO-GA Technique
Parampal Singh,Balwinder Singh Dhaliwal 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.11
The hybrid technique of Swine Influenza Model Based Optimization (SIMBO) and Genetic Algorithm (GA) for designing linear phase FIR low pass filter has been presented in this paper. The major difficulties using SIMBO algorithm in designing filter was premature convergence and unacceptable computational cost. To address this problem, a hybrid SIMBO-GA is proposed where GA is used to help SIMBO escape from local optima and prevent premature convergence. DEPSO, GLPSO DVN are adopted for comparison. In contrast with aforementioned algorithms it has been divulged that hybrid SIMBO-GA seems to be promising tool for optimum FIR filter design.
Phase transformation behavior of Ca-doped zirconia sintered at different temperatures
Kumar Ankit,Kumar Pravin,Dhaliwal A. S. 한국세라믹학회 2022 한국세라믹학회지 Vol.59 No.3
The phase evolution studies of 16 mol% calcium-doped zirconia have been carried out after sintering the samples at 800 °C, 1000 °C, 1200 °C, and 1400 °C. The X-ray diffraction (XRD), Raman spectroscopic along FTIR studies confirmed that the pure zirconia exists only in the monoclinic phase. However, the XRD analysis of calcium-doped zirconia and its Rietveld refinement studies revealed the stabilization of zirconia in the monoclinic and cubic phases both. With increasing sintering temperature, the development of cubic phase in zirconia is seen and at 1400 °C, an almost fully stabilized cubic phase of zirconia is achieved. The traces of CaZrO3 (perovskite phase) are observed in XRD and Raman studies when samples are sintered at 800 °C and 1000 °C. The results of FESEM suggest that grains are uniformly distributed and closely packed. Further, EDS mapping suggests that the calcium is uniformly distributed in samples. The thermal stability analysis confirms that calcium-stabilized zirconia is stable at high temperatures and analysis of the Vickers hardness test confirms that it is harder as compared to pure zirconia. Results reported here indicate that the sintering of 16 mol% calcium-doped zirconia at 1400 °C leads to the complete transformation of m-ZrO2 to c-ZrO2.
Evaluation of tomato hybrids for resistance to leaf curl virus disease and for high-yield production
S. Vijeth,Major Singh Dhaliwal,Salesh Kumar Jindal,Abhishek Sharma 한국원예학회 2018 Horticulture, Environment, and Biotechnology Vol.59 No.5
The leaf curl disease of tomato (Solanum lycopersicum L.) caused by tomato leaf curl virus(ToLCV) poses a serious production constraint throughout the world. An evaluation for resistance to ToLCV and four horticultural traits was carried out using 10 parents and 45 F1hybrids during the autumn of 2014–2015. Screening against ToLCV was done under both induced natural disease conditions and whitefly (Bemisia tabaci Genn.)-mediated inoculation, with symptoms ranging from symptomless to very severe infection. Under the natural disease conditions, seven parents and 20 F1 hybrids appeared symptomless until the fruit maturation stage. Using the artificial inoculation technique, six parents and 18 hybrids showed resistance at 60 days post inoculation. The correlation coefficients indicated that breeding for ToLCV-resistant hybrids enhanced total yield, fruit weight and total soluble solids content of fruits under natural disease conditions. Based on screening for resistance to ToLCV and four horticultural traits, we identified 4 tomato hybrids, namely CLN 138A × CLN 138B, CLN 138B × PVB-1, CLN 104 × CLN 154 and CLN 17 × PVB-1 to be favorable for commercial use. These hybrids showed resistance after undergoing the whitefly-mediated inoculation, produced 40% higher yield, and were either superior or at par for fruit weight, TSS and lycopene content when compared to the commercial control under natural disease conditions.
( Arshdeep Singh ),( Yogesh Kumar Gupta ),( Ashvin Singh Dhaliwal ),( Bhavjeet Kaur Kahlon ),( Vasu Bansal ),( Ramit Mahajan ),( Varun Mehta ),( Dharmatma Singh ),( Ramandeep Kaur ),( Namita Bansal ) 대한장연구학회 2023 Intestinal Research Vol.21 No.3
Background/Aims: The inflammatory bowel disease (IBD)-disk is a validated, visual, 10-item, self-administered questionnaire used to evaluate IBD-related disability. The present study aimed to evaluate IBD-disk in assessment of IBD daily life burden and its relation with disease activity. Methods: A cross-sectional study was conducted between June 2021 and December 2021. Patients with IBD were asked to complete the IBD-disk and a visual analogue scale of IBD daily-life burden (scored from 0-10, score >5 indicative of high burden). The internal consistency of IBD-disk, correlation with IBD daily life burden and disease activity (assessed by partial Mayo score and Harvey Bradshaw Index in patients with ulcerative colitis [UC] and Crohn’s disease [CD], respectively) and diagnostic performance of IBD-disk to detect high burden were analyzed. Results: Out of the 546 patients (mean age 40.33±13.74 years, 282 [51.6%] males) who completed the IBD-disk, 464 (84.98%) had UC and the remaining (n=82, 15.02%) had CD. A total of 311 patients (291 UC and 20 CD; 56.95%) had active disease. The mean IBD-disk total score and IBD daily life burden were 18.39±15.23 and 2.45±2.02, respectively. The IBD-disk total score correlated strongly with the IBD daily life burden (ρ=0.94, P< 0.001), moderately with partial Mayo score (ρ=0.50) and weakly with Harvey Bradshaw Index (ρ=0.34). The IBD-disk total score >30 predicted high IBD daily-life burden. Conclusions: The IBD-disk accurately predicts the daily life burden and parallels disease activity in patients with IBD and can be applied in clinical practice. (Intest Res 2023;21:375-384)
Keane, Kevin N,Ye, Yun,Hinchliffe, Peter M,Regan, Sheena LP,Dhaliwal, Satvinder S,Yovich, John L The Korean Society for Reproductive Medicine 2019 Clinical and Experimental Reproductive Medicine Vol.46 No.4
Objective: To determine the clinical pregnancy (CP) and live birth (LB) rates arising from frozen embryo transfers (FETs) that had been generated under the influence of in vitro fertilization (IVF) adjuvants given to women categorized as poor-prognosis. Methods: A registered, single-center, retrospective study. A total of 1,119 patients with first FETs cycle include 310 patients with poor prognosis (109 treated with growth hormone [GH], (+)GH group vs. 201 treated with dehydroepiandrosterone, (-)GH group) and 809 patients with good prognosis (as control, (-)Adj (Good) group). Results: The poor-prognosis women were significantly older, with a lower ovarian reserve than the (-)Adj (Good) group, and demonstrated lower chances of CP (p< 0.005) and LB (p< 0.005). After adjusting for confounders, the chances of both CP and LB in the (+)GH group were not significantly different from those in the (-)Adj (Good) group, indicating that the poor-prognosis patients given GH had similar outcomes to those with a good prognosis. Furthermore, the likelihood of LB was significantly higher for poor-prognosis women given GH than for those who did not receive GH (p< 0.028). This was further confirmed in age-matched analyses. Conclusion: The embryos cryopreserved from fresh IVF cycles in which adjuvant GH had been administered to women classified as poor-prognosis showed a significant 2.7-fold higher LB rate in subsequent FET cycles than a matched poor-prognosis group. The women with a poor prognosis who were treated with GH had LB outcomes equivalent to those with a good prognosis. We therefore postulate that GH improves some aspect of oocyte quality that confers improved competency for implantation.
Antennas for Biomedical Applications
Gurveer Kaur,Amandeep Kaur,Gurpreet Kaur Toor,Balwinder S. Dhaliwal,Shyam Sundar Pattnaik 대한의용생체공학회 2015 Biomedical Engineering Letters (BMEL) Vol.5 No.3
Biomedical engineering today holds a prominent place as a means of improving medical diagnosis and treatment, and as an academic discipline. Today glucose monitoring, insulin pumps, deep brain simulations and endoscopy are a few examples of the medical applications that can take advantage of remote monitoring system and body implantable unit. Body implantable devices are widely researched for humans, in the applications such as monitoring blood pressure and temperature, tracking dependent people or lost pets, wirelessly transferring diagnostic information from an electronic device implanted in the human body for human care and safety, such as a pacemaker, to an external RF receiver. Antennas can be implanted into human bodies or can just be mounted over the torso (skin-fat-muscle) to form a bio-communication system between medical devices and exterior instruments for short range biotelemetry applications. In addition to the clear benefits to the healthcare system provided by body implanted devices, economical aspects are also relevant. Remote monitoring systems facilitate the diagnosis of diseases and favor the hospital at home by reducing the hospitalization period.
Arshdeep Singh,Vandana Midha,Vikram Narang,Saurabh Kedia,Ramit Mahajan,Pavan Dhoble,Bhavjeet Kaur Kahlon,Ashvin Singh Dhaliwal,Ashish Tripathi,Shivam Kalra,Narender Pal Jain,Namita Bansal,Rupa Banerje 대한장연구학회 2023 Intestinal Research Vol.21 No.4
Background/Aims: Primary sclerosing cholangitis (PSC) represents the most common hepatobiliary extraintestinal manifestation of inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn’s disease (CD). Limited data exist on PSC in patients with IBD from India. We aimed to assess the prevalence and disease spectrum of PSC in Indian patients with IBD. Methods: Database of IBD patients at 5 tertiary care IBD centers in India were analyzed retrospectively. Data were extracted and the prevalence of PSC-IBD was calculated. Results: Forty-eight patients out of 12,216 patients with IBD (9,231 UC, 2,939 CD, and 46 IBD unclassified) were identified to have PSC, resulting in a prevalence of 0.39%. The UC to CD ratio was 7:1. Male sex and pancolitis (UC) or colonic CD were more commonly associated with PSC-IBD. The diagnosis of IBD preceded the diagnosis of PSC in most of the patients. Majority of the patients were symptomatic for liver disease at diagnosis. Eight patients (16.66%) developed cirrhosis, 5 patients (10.41%), all UC, developed malignancies (3 colorectal cancer [6.25%] and 2 cholangiocarcinoma [4.16%]), and 3 patients died (2 decompensated liver disease [4.16%] and 1 cholangiocarcinoma [2.08%]) on follow-up. None of the patients mandated surgical therapy for IBD. Conclusions: Concomitant PSC in patients with IBD is uncommon in India and is associated with lower rates of development of malignancies.