SAFIUS - A secure and accountable filesystem over untrusted storage

We describe SAFIUS, a secure accountable file system that resides over an untrusted storage. SAFIUS provides strong security guarantees like confidentiality, integrity, prevention from rollback attacks, and accountability. SAFIUS also enables read/write sharing of data and provides the standard UNIX-like interface for applications. To achieve accountability with good performance, it uses asynchronous signatures; to reduce the space required for storing these signatures, a novel signature pruning mechanism is used. SAFIUS has been implemented on a GNU/Linux based system modifying OpenGFS. Preliminary performance studies show that SAFIUS has a tolerable overhead for providing secure storage: while it has an overhead of about 50% of OpenGFS in data intensive workloads (due to the overhead of performing encryption/decryption in software), it is comparable (or better in some cases) to OpenGFS in metadata intensive workloads.Comment: 11pt, 12 pages, 16 figure

Eisenmenger’s syndrome and agenesis of the right pulmonary artery: A case of double diagnosis

We present a case of patent ductus arteriosus with severe pulmonary hypertension with the rare association of absent right pulmonary artery

Ayurvedic management of Systemic Lupus Erythematosus - A Single Case Study

Systemic lupus erythematosus (SLE) is a chronic autoimmune inflammatory disease. SLE is the disease with unknown etiology in which organs and cells undergo damage initially mediated by tissue-binding autoantibodies and immune complexes. In this paper, a patient diagnosed as SLE, which was managed successfully by Ayurveda treatment was discussed. A 39yr old female patient, visited OPD, with the complaints of rashes all over the body specially over the hands and legs and swelling all over the body specially on feet and hands and face since 6 years and mouth ulcers since 1 year. She was diagnosed as SLE from a higher medical centre with relevant investigations 6 years ago. And she was put on oral medications and steroids. As patient was not willing to continue with steroids any further, she alternatively opted for Ayurveda treatment. The condition was managed as per the principle of Vatarakta line of treatment. Manjishtadi Basti and other external therapy along with oral ulcer management have done for 15 days with oral medication prescribed during and after the treatment. The results of the treatment sustained almost for a year without any complications and flare up of symptoms

(R1976) A Novel Approach to Solve Fuzzy Rough Matrix Game with Two Players

This paper proposes a new method for solving a two-person zero-sum fuzzy matrix game with goals, payoffs, and decision variables represented as triangular fuzzy rough numbers. We created a pair of fully fuzzy rough linear programming problems for players. Triangular fuzzy rough numbers can be used to formulate two fuzzy linear programming problems for the first player in the form of upper approximation intervals and lower approximation intervals. Two problems for the second player can be created in the same way. These problems have been split into five sub-crisp problems for the player first and five sub-crisp problems for the player second. The solution to the game can be obtained by solving these ten fuzzy linear programming problems. To demonstrate the method, a numerical example is provided. Using Wolfram Cloud, optimal strategies and game values are calculated for various parameters. Sensitivity analysis is carried out by altering the values of parameters

Cyclospora cayetanensis: An Infestation among Diarrheal Children in Kathmandu Valley, Nepal

Cyclospora cayetanensis, a coccidian parasites which is responsible for recurring diarrhea and gastroenteritis especially among children living under poor hygienic condition in developing country like Nepal. Aimed of this research is to find out the prevalence of intestinal parasites and C. cayetanensis among diarrheal children in a Pediatric Hospital in Kathmandu valley, Nepal. Cross-sectional type of study was done. Altogether 196 stool specimens were collected from June to September 2013 among outpatient diarrheal children in Kanti Children’s Hospital. Modified Ziehl Neelson staining method was applied for detection of oocysts of Cyclospora after formal-ether sedimentation. Parasites were detected in 13.7% (27/196) of stool samples from ≤ 15 year old diarrheal patients. C. cayetanensis was detected in 4.8% (8/196). In genderwise, infection rate of C. cayetanensis 4.5 % (5/112), in male were higher than 3.6% (3/84) in female. In agewise, infection rate of C. cayetanensis in 5.7 % (3/52) 11-15 year old were highest followed by 4.1% (3/78) in 0-5 year old and 3.0% (2/66) in 6-10 year old. In seasonwise, infection rate of Cyclospora was highest in the month of August 7.4% (4/54) followed by 3.9% (2/51) in July, 2.3% (1/44) September and 2.1% (1/47) in June. Altogether five different type of parasites were detected. Infection rate of Giardia lamblia were highest 5.1 % (10/196) whereas lowest was Cryptosporidium parvum 1.0 % (2/196). Prevalence of C. cayetanensis is highly probable to infant, neonate, toddler and diarrheal children. Therefore, attention should be made in laboratory investigation of C. cayetanensis while suspecting the diarrheal patients infected with other parasites

First report of leucism for the kraits Bungarus walli Wall, 1907 and B. niger Wall, 1908, with updates on their geographic distribution in Nepal (Serpentes, Elapidae)

© 2020 The Authors. Published by Societas Europaea Herpetologica in Herpetology Notes. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://www.biotaxa.org/hn/article/view/62989Six species of kraits, genus Bungarus, have been recorded in Nepal (e.g., Schleich and Kästle, 2002; Sharma et al., 2013), including B. bungaroides (Cantor, 1839), B. caeruleus (Schneider, 1801), B. fasciatus (Schneider, 1801), B. lividus Cantor, 1839, B. niger Wall, 1908, and B. walli Wall, 1907. These species occur from the lowland habitats of the Terai Plains along the Nepal-India border into habitats at intermediate elevations in the Siwalik Hills and into the Mahabharat Range (Joshi et al., 2019), extending in the case of B. caeruleus, the most commonly encountered krait in Nepal, up to elevations of at least 1525 m, and up to 1730 m in B. bungaroides (Schleich and Kästle, 2002; Sharma et al., 2013). All of these species appear to be of medical importance as a cause of snakebite mortality and morbidity (e.g., Bhetwal et al., 1998; Pandey, 2015). It is noteworthy that confirmed records of kraits in Nepal display a patchiness consistent with intermittent sampling: while some species probably have a countrywide distribution, records tend to exist primarily for areas of high human population concentration where sampling and the incidence of snakebite can be expected at greater frequency (e.g., B. caeruleus, B. fasciatus, B. lividus). On the other hand, some species cluster only in the southeasternmost extreme of the country (B. bungaroides, B. walli), and given their distribution in neighbouring countries, this sampling may reflect reality

OCTraN: 3D Occupancy Convolutional Transformer Network in Unstructured Traffic Scenarios

Modern approaches for vision-centric environment perception for autonomous navigation make extensive use of self-supervised monocular depth estimation algorithms that output disparity maps. However, when this disparity map is projected onto 3D space, the errors in disparity are magnified, resulting in a depth estimation error that increases quadratically as the distance from the camera increases. Though Light Detection and Ranging (LiDAR) can solve this issue, it is expensive and not feasible for many applications. To address the challenge of accurate ranging with low-cost sensors, we propose, OCTraN, a transformer architecture that uses iterative-attention to convert 2D image features into 3D occupancy features and makes use of convolution and transpose convolution to efficiently operate on spatial information. We also develop a self-supervised training pipeline to generalize the model to any scene by eliminating the need for LiDAR ground truth by substituting it with pseudo-ground truth labels obtained from boosted monocular depth estimation.Comment: This work was accepted as a spotlight presentation at the Transformers for Vision Workshop @CVPR 202

A Flexible Crypto-system Based upon the REDEFINE Polymorphic ASIC Architecture

The highest levels of security can be achieved through the use of more than one type of cryptographic algorithm for each security function. In this paper, the REDEFINE polymorphic architecture is presented as an architecture framework that can optimally support a varied set of crypto algorithms without losing high performance. The presented solution is capable of accelerating the advanced encryption standard (AES) and elliptic curve cryptography (ECC) cryptographic protocols, while still supporting different flavors of these algorithms as well as different underlying finite field sizes. The compelling feature of this cryptosystem is the ability to provide acceleration support for new field sizes as well as new (possibly proprietary) cryptographic algorithms decided upon after the cryptosystem is deployed.Defence Science Journal, 2012, 62(1), pp.25-31, DOI:http://dx.doi.org/10.14429/dsj.62.143