500 research outputs found
Translation of Goswami Harirai's Jarasandhavadha Mahakavyam from Sanskrit to English with a Critical Introduction
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Video assisted thoracoscopic excision of mediastinal ectopic parathyroid ademonas: A UK regional experience
No full textBackground: To report the first series of video-assisted thoracoscopic surgery (VATS) resection of mediastinal ectopic parathyroid adenomas (MEPAs) in the UK. Methods: A case series of seven cases undergoing VATS between 2004 and 2009 to treat single gland hyperparathyroidism. Methylene blue (MB) was used in 5/7 cases immediately before exploration to identify the adenomas. Carbon dioxide (CO2) up to pressures of 10 mmHg was used safely to deflate the lung in two cases. Results: There were five women and two men with a mean age of 53 years (range, 27-72 years). Histopathology confirmed successful resection of the parathyroid adenoma in 6/7 cases. There was one conversion to open thoracotomy due to bleeding from the azygos vein resulting from excessive traction. Despite marked MB uptake, this patient proved to have tuberculoid adenopathy and no parathyroid tissue was identified. Postoperative plasma calcium returned to normal in 6/7 patients and parathyroid hormone (PTH) level in 6/7 patients. The median hospital stay was 2 days and there was no mortality in this series. Conclusions: MEPAs can be safely resected using VATS with minimal surgical morbidity, short drainage time and short hospital stay. CO2 insufflation and the intraoperative use of MB are safe and help to accurately localise the ectopic adenoma. VATS should be considered as the first-line approach for resection of MEPAs
Measurement and performance evaluation of triple band differential integrated extraoral rectifying antenna for data transfer and RF energy harvesting for tongue drive system
Get PDFWearable assistive devices are vitally important for tetraplegic individuals to provide valuable insights into their intended directives tailored to tongue motions in wireless healthcare industries. The flexible differentially driven extraoral antenna and rectenna measurement system are developed to enable differential sensing and monitoring of the set of unique tongue gestures for extraoral tongue drive system (eTDS) applications in three frequency bands of Industrial, Scientific, and Medical (ISM) (915.0 MHz, 2400 MHz, and 5800 MHz). The performance analysis is carried out using the heterogeneous human head model. The differential rectifier is coplanarly integrated with the differential extraoral antenna on the same 0.254 mm thin and 9.5 mm wider Rogers RT/ Duroid 6010 LM substrate. The footprint of the fabricated differential rectenna is 0.135 0.082 0.002 where the planar size of differential rectifier is 15.75 2.5 mm2. The fabricated systems are situated closely to an artificial head model. The maximum conversion efficiency achieved at 2400 MHz and 5800 MHz is 83.45% and 74.8%, respectively, for 11 dBm of RF input power. Further, the link analysis, including interfacing circuit losses, was carried out theoretically at 915 MHz. Thus, the proposed differential extraoral systems can be employed to acquire and transmit the user intentions in eTDS inspired healthcare applications
Multi-Channel Implantable Cubic Rectenna MIMO System With CP Diversity in Orthogonal Space for Enhanced Wireless Power Transfer in Biotelemetry
Get PDFFor wireless power transfer (WPT), an implantable cubic rectenna multi-input-multi-output (MIMO) system (CRMS), operating in dual industrial, scientific, and medical (ISM) frequency bands of 2.45 and 5.8 GHz, is presented as a receiver ( Rx ). CRMS is evolved to the proposed biocompatible full-package cubic rectenna (FPCR) by including the power and data management circuit modules. The dual frequency bands differentiated by orthogonal circular polarization (CP) in a spatial quadrature would serve as propagation channels for power, data, and control signals. Four dual-branch rectifiers are designed using both distributed and lumped elements on the backside of individual antenna elements. To demonstrate the feasibility of the proposed work as an integrated system for WPT, the structures are fabricated individually, where the transmitter ( Tx ), which is an external antenna, and rectifiers are tested in free space and FPCR in a custom-made canonical phantom. After validation of individual measurements, power delivery from the Tx to the FPCR is conducted experimentally to measure the integrated system’s radiofrequency (RF)-dc total conversion efficiency (TCE). The FPCR is designed to receive low RF power ( PRF ) of 0 dBm, where a single cubic rectenna element (CRE) provides dc power ( PDC ) of 0.26 and 0.33 mW at 2.45 and 5.8 GHz, respectively. Thereafter, the interconnection of CREs in a series/parallel configuration improved PDC to 0.5/1.39 and 0.51/1.64 mW, respectively. Additionally, human safety is considered by evaluating a maximum permissible exposure (MPE) limit and specific absorption rate (SAR) distribution in a canonical tissue model when both Tx and FPCR are excited with 1 W power
Questioned Document Examination: A Prevalent Dispute
No full textQuestioned Document is one of the significant components in forensic science. This chapter explores the basic principles of handwriting, signatures, and the factors affecting them. Some of the commonly encountered questioned documents generally include paintings, rent receipts, prescriptions, letters (suicide, love, or threatening), security documents such as passport, ID cards, and currency notes. Tampering is one of the burning issues which are easily achieved by the means of addition, alteration, erasure, obliteration, charring, and adopting secret writings. The challenge faced by the experts in recognizing the sign of tampering, forgery, and the employment of examination technique to it is a prevalent dispute. The Questioned Document Examination (QDE) will be valuable for the students, police officers, investigators, and attorneys as they will gain information regarding the court and the procedure of litigation. They will also achieve information regarding the guidelines in forensic document examination and the role of the expert in questioned document examination. The focus on the admissibility of various questioned documents in the court of law and the associated laws is being expounded
Physicochemical assessment of industrial textile effluents of Punjab (India)
Get PDFUrbanization and industrialization are generating huge quantities of untreated wastewater leading to increased water pollution and human diseases in India. The textile industry is one of the leading polluters of surface water and consumes about 200–270 tons of water to produce 1 ton of textile product. The primary objective of the present study was to investigate the pollution potential of textile industry effluent draining into Buddha Nallah stream located in Ludhiana, Punjab (India), and determine the seasonal variation in physicochemical parameters (pH, water temperature, total dissolved solids, total suspended solids, biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of Buddha Nallah water. During summer months, for Site 1 and Site 2, the value of pH was in the alkaline range of 8.78 ± 0.47 and 8.51 ± 0.41, respectively. The values of pH in the rainy season were found to be in the range of 7.38 ± 0.58 and 7.11 ± 0.59 for Site 1 and Site 2, respectively. In the autumn and winter seasons, the average pH values were found to be in the range of 8.58 ± 1.40 and 8.33 ± 0.970, respectively. The maximum mean temperature in summer was recorded as 41.16 ± 4.99 °C, and lowest mean temperature in winter was recorded as 39.25 ± 2.25 °C at Site 2. The suspended solids were found to be highest (143.5 ± 75.01 and 139.66 ± 71.87 mg/L) in autumn for both the sites and lowest (86.50 + 15.10 mg/L) in the rainy season for Site 1. The values of BOD and COD of the textile effluent of both sites during all the seasons ranged from 121–580 to 240–990 mg/L, respectively, much higher than WHO water quality standard of 30 mg/L for BOD and 250 mg/L for COD. The present study deals with the collection of textile industry effluent and its characterization to find out the physicochemical load being drained by the effluent generated from textile industries, on the natural wastewater streams.This article is published as Bhatia, Deepika, Neeta Raj Sharma, Ramesh Kanwar, and Joginder Singh. "Physicochemical assessment of industrial textile effluents of Punjab (India)." Applied Water Science 8, no. 3 (2018): 83. doi: https://doi.org/10.1007/s13201-018-0728-4
Multimodal Computational Framework for Assessing SDG Contributions
No full textThis research elaborates the importance of addressing the United Nations' Sustainable Development Goals (SDGs) related to sustainable consumption and responsible production using multimodal artificial intelligence, computer vision, and machine learning methods. The past hundred years of urban growth in a developing country such as Brazil has been extraordinary, with more than 85% of the population now living in cities. The growing need for land has led countries such as Brazil, Peru and Bolivia to embrace deforestation as a poorlyinformed cure, with disastrous implications on many species residing in the Amazon Rainforest. So we should be good at estimating deforestation levels because more deforestation leads to a lot of really bad environmental issues. We present a multimodal computational pipeline for the multi-label classification of aerial satellite imagery from an open-access dataset covering the region of Brazil's Amazon rainforest. This framework can help in tracking deforestation activities and it may be relevant to other regions globally as well.</p
One hundred days: the effects of India's employment guarantee program on child work
No full textThe challenge of evaluating anti-poverty interventions in non-experimental settings lies in establishing a causal linkage between an intervention and a desired outcome. While randomized controlled trials (RCTs) are rightfully regarded as the gold standard, they are not practically or ethically feasible in all development projects. This dissertation focuses on the use of natural experiments to evaluate the intended and unintended consequences of anti-poverty interventions on children. Designed around unplanned events, natural experiments provide information comparable to RCTs, and are cost and time efficient. Article 1 summarizes the evidence from natural experiments on the effects of interventions that increase income and education. Article 2 summarizes the evidence from several natural experiments that evaluate the effects of India’s National Rural Employment Guarantee Scheme (NREGS), an employment policy. Broad findings suggest that while the policy successfully targeted poor households, and increased rural employment and wages, it had the unintended consequence of increasing child labor, and decreasing educational outcomes. Article 3 uses data from a nationally representative survey to evaluate the effects of the policy on child work. Results suggest that child and household level characteristics have a significant effect on determining child work. Further, as suggested by the literature, children living in households that worked under the policy are more likely to be engaged in work (both paid and domestic) than children living in non-participant households. While it is not possible to make causal attributions, possible explanations include unintended effects of the policy or household selection effects.Ph.D.Includes bibliographical referencesIncludes vitaby Neeta Goe
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