Observation of Mixed Alkali Like Behaviour by Fluorine Ion in Mixed Alkali Oxyfluro Vanadate Glasses: Analysis from Conductivity Measurements

In this communication we report the fluorine ion dynamics in mixed alkali oxyfluro vanadate glasses. We have measured the electrical conductivity using impedance spectroscopy technique Room temperature conductivity falls to 5 orders of magnitude from its single alkali values at 33 mol% of rubidium concentration. We have also estimated the distance between similar mobile ions using the density values. Assuming this distance as the hopping distance between the similar ions we have estimated the anionic (Fluorine ion in our case) conductivity. It is observed that the fluorine ion dynamics mimics the mixed alkali effect and scales as the onset frequency f0.Comment: submitted to DAE-SSDP 2018 Indi

Decentralised, Scalable and Privacy-Preserving Synthetic Data Generation

Synthetic data is emerging as a promising way to harness the value of data, while reducing privacy risks. The potential of synthetic data is not limited to privacy-friendly data release, but also includes complementing real data in use-cases such as training machine learning algorithms that are more fair and robust to distribution shifts etc. There is a lot of interest in algorithmic advances in synthetic data generation for providing better privacy and statistical guarantees and for its better utilisation in machine learning pipelines. However, for responsible and trustworthy synthetic data generation, it is not sufficient to focus only on these algorithmic aspects and instead, a holistic view of the synthetic data generation pipeline must be considered. We build a novel system that allows the contributors of real data to autonomously participate in differentially private synthetic data generation without relying on a trusted centre. Our modular, general and scalable solution is based on three building blocks namely: Solid (Social Linked Data), MPC (Secure Multi-Party Computation) and Trusted Execution Environments (TEEs). Solid is a specification that lets people store their data securely in decentralised data stores called Pods and control access to their data. MPC refers to the set of cryptographic methods for different parties to jointly compute a function over their inputs while keeping those inputs private. TEEs such as Intel SGX rely on hardware based features for confidentiality and integrity of code and data. We show how these three technologies can be effectively used to address various challenges in responsible and trustworthy synthetic data generation by ensuring: 1) contributor autonomy, 2) decentralisation, 3) privacy and 4) scalability. We support our claims with rigorous empirical results on simulated and real datasets and different synthetic data generation algorithms

Fate of Estrogens and Illicit Drugs During Urine Separation and Treatment

The presence and their subsequent treatment of nutrient in municipal wastewater is still at the front end of environmental engineering despite several decades of successful research and applications. In recent times, the source separation followed by the treatment of urine or resource recovery from human urine has evolved as emerging management strategies albeit mostly at research stage. Human contributes about 80% of the nitrogen, 70% of the potassium and up to 50% of the total although the urine only contributes 1% of the total volume of the wastewater. It is also a known fact that many of the micropollulatnts get into municipal wastewater through urine excretion. The information on the fate of micropollutants during urine treatment and resource recovery is scarce and this study will focus on this emerging area of research. This is one of few studies to evaluate the feasibility of simultaneous P recovery and N removal using combination of chemical and biological processes. The primary results showed above 95% P recovery via struvite precipitation. This study also investigated the possibility of using deammonificaiton processes in lab scale reactors feed with diluted urine after struvite precipitation. The serum bottles tests showed the deammonificaiton reactors performances were not affected by up to 100ug/L E2

Metabolic network analysis reveals microbial community interactions in anammox granules.

Microbial communities mediating anaerobic ammonium oxidation (anammox) represent one of the most energy-efficient environmental biotechnologies for nitrogen removal from wastewater. However, little is known about the functional role heterotrophic bacteria play in anammox granules. Here, we use genome-centric metagenomics to recover 17 draft genomes of anammox and heterotrophic bacteria from a laboratory-scale anammox bioreactor. We combine metabolic network reconstruction with metatranscriptomics to examine the gene expression of anammox and heterotrophic bacteria and to identify their potential interactions. We find that Chlorobi-affiliated bacteria may be highly active protein degraders, catabolizing extracellular peptides while recycling nitrate to nitrite. Other heterotrophs may also contribute to scavenging of detritus and peptides produced by anammox bacteria, and potentially use alternative electron donors, such as H2, acetate and formate. Our findings improve the understanding of metabolic activities and interactions between anammox and heterotrophic bacteria and offer the first transcriptional insights on ecosystem function in anammox granules

Olbrzymi tętniak obejmujący kilka tętnic wieńcowych, w tym pień tętnicy wieńcowej lewej, powodujący objawy ostrego zespołu wieńcowego u 23-letniego chorego: nietypowe powikłanie choroby Kawasaki

The reported incidence of coronary artery aneurysms (CAA) on angiography varies between 0.3 to 5.3%. Right coronary artery is the most commonly affected followed by left circumflex or left anterior descending artery. Three-vessel or left main involvement is exceedingly rare. Atherosclerosis accounts for the vast majority of CAAs in adults, whereas Kawasaki disease is responsible for most cases in children. We report a rare case of Kawasaki disease associated with giant aneurysms ( > 8 mm) in coronary circulation, including left main coronary artery in 23-year-old male having maturity onset diabetes (MODY), who presented with acute coronary syndrome.The reported incidence of coronary artery aneurysms (CAA) on angiography varies between 0.3 to 5.3%. Right coronary artery is the most commonly affected followed by left circumflex or left anterior descending artery. Three-vessel or left main involvement is exceedingly rare. Atherosclerosis accounts for the vast majority of CAAs in adults, whereas Kawasaki disease is responsible for most cases in children. We report a rare case of Kawasaki disease associated with giant aneurysms ( > 8 mm) in coronary circulation, including left main coronary artery in 23-year-old male having maturity onset diabetes (MODY), who presented with acute coronary syndrome

Development of a high rate biological system (Anammox + phosporous) for the treatment of low strength wastewaters

Since their detection and abundance are disrupted by a number of unidentified conditions, anaerobic ammonium oxidising bacteria (anammox) play a vital role in wastewater. Low Strength Wastewaters (LSW) are those that have a chemical oxygen demand (COD) < 1000 ppm. Nitrogen and phosphorus are the major nutrients present in LSW in addition to the organic carbon. The biological nitrogen removal was studied through using a recent process of anaerobic ammonium oxidation (Anammox) process. A thorough explanation of the anammox substrate removal mechanism and denitrification phosphorus removal is provided. Denitrification was studied in a high rate anoxic hybrid reactor (HR) which yielded NO3−-N removal in the range of 92–100% till a Hydraulic Retention Time (HRT) of 0.3 d and 79% at 0.24 d respectively for an inlet NO3−-N concentration of 500 ppm. Total kjedahl nitrogen (TKN) removal of 91%, 77%, 69% and 61% were obtained in the HR containing anammox and denitrifying granules at a HRT of 2.14, 0.94, 0.56 and 0.4 per day respectively for an inlet TKN concentration of 500 ppm. Phosphorus removal of 100, 83 and 72% was obtained for an inlet PO43−- P concentration of 50, 75 and 100 ppm, respectively at an optimum anaerobic HRT of 0.06 d (1.5 h) and aerobic HRT of 0.94 d. It is evident that the phosphorus removal efficiency is better in continuous mode than in the batch mode

Acute dislocation of fully deployed stent after use of non-compliant balloon: an enigma

Stent embolism is an established but rare complication of percutaneous coronary intervention, usually encountered when an undeployed stent unintentionally dislocates from the balloon. Published literature regarding incidence or clinical outcomes of embolism of fully deployed coronary stents is sparse. Here we report an unusual case of a 41-year-old male who had dislocation of a fully deployed stent into the distal part of left anterior descending artery following post dilatation by non-compliant balloon during percutaneous coronary intervention