Modified Low Rank Approximation for Detection of Weak Target by Noise space Exploitation in Through Wall Imaging

Low dielectric materials referred as weak targets are very difficult to detect behind the wall in through wall imaging (TWI) due to strong reflections from wall. TWI Experimental data collected for low dielectric target behind the wall and transceiver on another side of the wall. Recently several researchers are using low-rank approximation (LRA) for reduction of random noise in the various data. Explore the possibilities of using LRA for TWI data for improving the detection of low dielectric material. A novel approach using modification of LRA with exploiting the noise subspace in singular value decomposition (SVD) to detect weak target behind the wall is introduced. LRA consider data has low rank in f-x domain for noisy data, local windows are implemented in LRA approach to satisfy the principle assumptions required by the LRA algorithm itself. Decomposed TWI data in the noise space of the SVD to detect the weak target adaptively. Results for modified LRA for detection of weak target behind the wall are very encouraging over LRA

Detection of substrate binding motifs for morphine biosynthetic pathway intermediates in novel wound inducible (R,S)-reticuline 7-O-methyltransferase of Papaver somniferum

The benzylisoquinoline alkaloids (BIA) comprise a large and diverse group of nitrogen-containing secondary metabolites with about 2500 compounds identified in plants. BIA biosynthesis begins with the condensation of the tyrosine derived precursors dopamine and p-hydroxyphenylacetaldehyde to (S)-norcoclaurine. Subsequent regiospecific O- and N-methylations and aromatic ring hydroxylation lead to (S)-reticuline, which is the central intermediate for almost all BIAs. For morphinan alkaloid biosynthesis, (S)-reticuline undergoes an inversion of stereochemistry to (R)-reticuline, followed by C-C phenol coupling catalyzed by a unique cytochrome P450-dependent monooxygenase to yield salutaridine. The cDNA sequence of enzymes leading to (S)-reticuline, as well as those involved in the conversion of (R)-reticuline to salutaridine-7-O-acetate are already characterized. The inversion of (S)-reticuline to (R)-reticuline represent the important steps in morphine biosynthesis. Wound induced transcript accumulation in Papaver reveals a novel wound inducible EST (NCBI DbEST: GO238757) showing homology with (R,S)-reticuline 7-O-methyltransferase (ID: Q6WUC2) isolated from Papaver somniferum. We compare the substrate binding homology of this novel wound inducible (R,S)-reticuline 7-O-methyltransferase (7-OMT) using template of P. somniferum (Q6WUC2; gb|AAQ01668) as experimental control. Homology modeling with 70% identity & 85% similarity with catalytic site of template protein i.e., (Q6WUC2) short chain dehydrogenase/reductase (SDR), showed docking energy -69.9 and -75.8 kcal/mol with (S)-Reticuline (CID:439653) and (R)-Reticuline (CID:440586) respectively, which are comparable with experimental control binding site interaction energies. Docking of S- & R-reticuline into the active site revealed eight (F(5), E(18), W(24), C(47), F(44), P(45), C(46) and I(47) amino acids presumably responsible for the high substrate specificity of (R,S)-reticuline 7-O-methyltransferase

Rapid identification and susceptibility pattern of various Candida isolates from different clinical specimens in a tertiary care hospital in Western Uttar Pradesh

Background: Candida species are component of normal flora of human beings. Candidiasis is the commonest fungal disease affecting mucosa, skin, nails and internal organs. A variety of predisposing factors are known to cause candidiasis either by altering balance of normal microbial flora of the body or by lowering the host defence.Methods: A total of 90 specimens submitted in the department of microbiology were included in this study.  Identification of Candida species as well as antifungal sensitivity testing was performed with Vitek®2 compact (Biomerieux France) using Vitek2 cards for identification of yeast and yeast like organisms (ID-YST cards). Antifungal susceptibility testing was performed using Vitek2 fungal susceptibility card (AST YS01) kits respectively.Results: The distribution of the clinical samples were urine 53 (58.9%), sputum 14 (15.5%), blood 10 (11.1%), nail 6 (6.7%) and high vaginal swab 7 (7.8%). Among 90 clinical isolates, species obtained were C. tropicalis 53 (59%), C. albicans 23 (25.5%), C. glabrata 6 (6.7%), C. parapsilosis 4 (4.4%), C. krusei 2 (2.2%), C. pelliculosa 1 (1.1%), C. famata 1 (1.1%).Conclusions: Infections caused by non-candida albicans species have increased. Identification of Candida species and their antifungal susceptibility are important for the treatment of hospitalized patients with serious underlying disease

A study of mode of transmission, clinical presentations, WHO and immunological staging among HIV infected children

Background: The clinical manifestations of HIV infection vary widely among infants, children, and adolescent. So there is a need to study the mode of transmission, clinical presentations, WHO and immunological staging among HIV infected children.Methods: Observational analytic cross sectional study. The children who were HIV positive (confirmed by ELISA for HIV-1 and HIV-2), and attending the OPD of ART Centre and SN Children Hospital, Allahabad during period of one year. The study population consisted of 47 patients, belonging to both sexes and age of 18 months to 19 years. Detailed history was taken and full clinical examination done in all cases. CD4 count was estimated at the time of presentation.Results: Predominant mode of transmission in our study was vertical and it was present in 95% cases. Fever was the most common presenting complaint and was present in 28 (59.57%) cases. The most common clinical sign was pallor in our study, present in 37 cases (78.72%) followed by lymphadenopathy 34 (72.34%). On the basis of WHO clinical staging, most of the patients in our study were found in stage 2 .On the basis of immunological staging, 51% had no evidence of immunosuppression (stage1), 18 (38.3%) had mild to advanced immunosuppression (stage 2 and 3) and 5 (10.63%) patients were severely immunosuppressed (stage 4). Conclusion: In HIV infected children predominant mode of transmission is vertical. Fever and pallor are common clinical manifestations. Most of the patients are found in WHO clinical stage 2 and immunological stage 1.

In Search of an Ideal Test for Diagnosis and Prognosis of Kala-azar

The latex agglutination test (KAtex), direct agglutination test (DAT), and the rK39 immuno-chromatographic strip test (dipstick test) were evaluated for their role in the diagnosis and prognosis of visceral leishmaniasis (kala-azar) in India. Sera and urine samples from 455 subjects—150 confirmed visceral leishmaniasis cases, 160 endemic controls, 100 non-endemic controls, and 45 other febrile diseases—were included in the study. The sensitivity of the KAtex, DAT, and rK39 strip test was 87% [95% confidence interval (CI) 80–96], 93.3% (95% CI 88–100), and 98% (95% CI 93–100) respectively. The specificity of these tests was 98% (95% CI 93–100), 93% (95% CI 87–100), and 89% (95% CI 82–97) for the KAtex, DAT, and rK39 strip test respectively. Fifty cases were followed up and subjected to the KAtex, DAT, and rK39 strip test after 30 days of successful treatment. The DAT and rK39 strip test showed positive results in all the 50 cases whereas the KAtex showed no positive reaction in any case. Based on the results, it is concluded that the sensitivity and specificity of the DAT and rK39 strip test are comparable but the greater convenience of use of the strip test makes it a better tool for the diagnosis of visceral leishmaniasis in the peripheral areas of endemic regions whereas the sensitivity of the KAtex needs to be improved to promote its use as a first-line diagnostic test in the field-setting. It may be used for the prognosis of the disease as antigen becomes undetectable in urine after 30 days of the completion of the treatment. Alternatively, it can be used as an adjunct with rK39 for sero-epidemiological surveys

Characterization, speciation and antimicrobial resistance pattern of Enterococcus species isolated from clinical specimens at a rural tertiary care hospital

Background: Enterococci have attracted much attention in recent years due to their increased recognition as a cause of nosocomial infection. They exhibit vancomycin resistance with increasing frequency so that determination of antimicrobial susceptibility pattern is necessary. Aim of present study is to determine the prevalence and susceptibility pattern of Enterococci in rural tertiary care hospital.Methods: Total of 100 Enterococcus isolated from various clinical samples were identified and speciated by Vitek®2 compact system (BIOMERIEUX). Antibiotic susceptibility was determined by modified Kirby Bauer disc diffusion method. Results were interpreted as per CLSI guidelines and vancomycin MIC was determined by E-test method.Results: Out of 100 Enterococcus strains 47 were E. faecalis, 51 were E. faecium, 02 were E. gallinarum and 01 was E. cassaliflavus. Resistance to penicillin, ampicillin, ciprofloxacin, elevated level gentamycin and high-level streptomycin were observed. All isolates were sensitive to linezolid and teicoplanin, 6% strains showed vancomycin resistance by E-test.Conclusions: High rate of resistance to penicillin, ciprofloxacin and aminoglycosides is observed and emergence of VRE has further worsened this situation. So, there is an urgent need for more rational use of antimicrobials and infection control

Assessment of quality of life of type-2 diabetes mellitus patients in tertiary care teaching hospital in North India

Background: Quality of life (QoL) is a standard indicating a person’s life in better condition as compared to a diseased person or patient. Diabetes itself is not a dangerous disease if managed properly, but it becomes life-threatening after a certain time period because of the patient’s poor interest in disease management and treatment adherence. Diabetes mellitus is an endocrine system disorder that invokes lack of insulin secretion in the bloodstream. The study was conducted to assess the QoL of type-2 diabetes mellitus patients with QoL instrument.Methods: Questionnaire based cross-sectional, prospective study was conducted at Teerthanker Mahaveer Hospital, Moradabad, for a duration of 6 months from January - June 2019, on 196 patients of type-2 diabetes mellitus.Results: On an average 56.5% people have accepted that due to the diabetic condition their working proficiency is decreased. 80.3% of patients have accepted that they were facing problems due to diabetic symptoms. Similarly, 84% of patients have accepted that the ongoing treatment was quite expensive than their expectations. Finally, the last section of the patient’s emotional/mental satisfaction showed that 49.7% of patients were very satisfied with their family support while 13.7% of patients were not satisfied.Conclusions: QOL instrument for Indian diabetes patient’s instrument helped to evaluate the patient’s physical strength, psychological strength of the patient during disease condition, the response provided from the family members and relatives, the economical status of the patient and its effects on their living

Comparison of BACTEC MGIT with conventional methods for detection of Mycobacteria in clinically suspected patients of extra pulmonary tuberculosis in a tertiary care hospital

Background: Tuberculosis is an important public health problem in India and globally.  Extra pulmonary tuberculosis (EPTB) constitutes for approximately 15 to 20 per cent of all cases of tuberculosis in immunocompetent patients and accounts for more than 50 per cent of the cases in HIV- positive individuals. Main problem with the extra-pulmonary tuberculosis is the paucibacillary nature of the specimen, which makes the diagnosis difficult and delay the treatment. With this in background, this study aimed at the isolation of Mycobacteria from clinical specimens of patients suspected of extra pulmonary tuberculosis using BACTEC MGIT, Lowenstein Jensen (LJ) media and direct acid-fast bacilli smear examination.Methods: A total of 66 samples were processed for direct AFB smear examination, and culture on MGIT and LJ media. Acid fast staining of the specimens was done using the Ziehl-Neelsen method.Results: Among 66 specimens, MGIT gave a higher yield of mycobacteria (46.9%), lower contamination rate (3%) and shorter time to positive culture as compared to LJ media.Conclusions: MGIT gives higher yield and faster results

Biometrical Analysis of Capsules per Plant in Salinity in Linseed Plant

The main objective of breeding linseed is the improvement of yield potential at the new cultivars; so that they became more desirable agronomically and economically, viz. higher yield improved the content and the quality of oil resistance, decreased pests, early maturity fertilizers responsiveness and genetics extension of seed filling period. The present study deals with the measurement of capsules per plant under salinity conditions