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In today’s times everything has moved to a digital platform. Even commerce has moved to a digital mode with people now preferring to buy things online rather than going to a physical store. Recommendation Systems are used in such platforms to help users. Recommendation System is one of the most popular application of Machine Learning with various techniques and algorithms to implement it. We have researched these algorithms and have presented an analysis by taking various factors into consideration.

In the light of global climate change and growing population, the demand for freshwater is projected to increase globally by 55% between 2000 and 2050. However, the present situation of surface water and groundwater resources is grim in terms of both quality and quantity in major aquifers of the world, namely, the Ganga Basin (India), High Plains (USA), North China Plain (China), Canning Basin (Australia), and California Central Valley (USA). The reduced river discharge in critical regions has shifted the attention of stakeholders towards aquifers for water supply. Thus, the groundwater resources are facing compounding impacts of human-induced water stress and climate change. The current study explores the sensitivity of the groundwater-use regimes, namely, Natural Flow Dominated (NFD), Human Flow Dominated (HFD) and Human Withdrawal Dominated (HWD), and the associated stress levels to (a) various groundwater management strategies such as change in cropping patterns, reduction in irrigated area, reduction in irrigation application frequency, reuse of water, and (b) supply side strategies such as change in Land Use Land Cover to enhance recharge, and artificial recharge mechanisms. The present work involves conceptualisation of several groundwater management strategies and supply side strategies and running these scenarios over the Ganga Basin using a SWAT-MODFLOW model setup to simulate the impact on the groundwater system. This study helped to understand whether (i) the reduction in the pumping activity in a HWD Groundwater Regime would result in a shift in the regime type to NFD, and (ii) the positive human intervention in the form of optimum pumping would help in mitigating the adverse effects of changing precipitation and evapotranspiration characteristics. Moreover, the results of the present work also improve understanding of the conditions under which the regime shifts can occur and help answer questions such as (i) how and when would a NFD Regime with low groundwater stress level convert into a HFD Regime, (ii) will a HFD Regime convert into a NFD Regime if extraction is strongly reduced, and (iii) how can we achieve a low groundwater stress level? Thus, the present study provides a useful insight into the groundwater dynamics and its response to the existing management strategies.

Alzheimer disease (AD) is very common among the older people. There are few medications available as oral and suspension dosage forms for the management of AD. Due to the rising cases of AD and the associated risks of the existing line of treatment, oil in water (o/w) nanoemulsion (NE) loaded with donepezil was prepared to explore intranasal route of administration. The NE was prepared using labrasol (10%), cetyl pyridinium chloride (1% in 80% water), and glycerol (10%), with a drug concentration of 1 mg/ml. The developed NE was characterized for particle size, polydispersity index (PDI), and zeta potential. In vitro release studies were conducted to observe the release of drug. Further in vivo studies of developed NE were done on Sprague Dawley rats using technetium pertechnetate (99mTc) labeled formulations to investigate the nose to brain drug delivery pathway. The nanoemulsion showed particle size of 65.36 nm with a PDI of 0.084 and zeta potential of −10.7 mV. In vitro release studies showed maximum release of 99.22% in 4 h in phosphate-buffered saline, 98% in 2 h in artificial cerebrospinal fluid, and 96% in 2 h in simulated nasal fluid. The cytotoxicity and antioxidant activity of the NE showed dose-dependent cytotoxicity and % radical scavenging activity (%RSA). The images of giemsa staining also confirmed that the developed formulation has no impact on the morphology of cells. Scintigrams showed maximum uptake of NE in the brain. The findings suggested that the developed NE loaded with donepezil hydrochloride could serve as a new approach for the treatment of Alzheimer via nose to brain drug delivery.

Background Lignocellulosic hydrolysates contain a mixture of hexose (C6)/pentose (C5) sugars and pretreatment-generated inhibitors (furans, weak acids and phenolics). Therefore, robust yeast isolates with characteristics of C6/C5 fermentation and tolerance to pretreatment-derived inhibitors are pre-requisite for efficient lignocellulosic material based biorefineries. Moreover, use of thermotolerant yeast isolates will further reduce cooling cost, contamination during fermentation, and required for developing simultaneous saccharification and fermentation (SSF), simultaneous saccharification and co-fermentation (SScF), and consolidated bio-processing (CBP) strategies. Results In this study, we evaluated thirty-five yeast isolates (belonging to six genera including Saccharomyces, Kluyveromyces, Candida, Scheffersomyces, Ogatea and Wickerhamomyces) for pretreatment-generated inhibitors {furfural, 5-hydroxymethyl furfural (5-HMF) and acetic acid} and thermotolerant phenotypes along with the fermentation performances at 40 °C. Among them, a sugarcane distillery waste isolate, Saccharomyces cerevisiae NGY10 produced maximum 49.77 ± 0.34 g/l and 46.81 ± 21.98 g/l ethanol with the efficiency of 97.39% and 93.54% at 30 °C and 40 °C, respectively, in 24 h using glucose as a carbon source. Furthermore, isolate NGY10 produced 12.25 ± 0.09 g/l and 7.18 ± 0.14 g/l of ethanol with 92.81% and 91.58% efficiency via SHF, and 30.22 g/l and 25.77 g/l ethanol with 86.43% and 73.29% efficiency via SSF using acid- and alkali-pretreated rice straw as carbon sources, respectively, at 40 °C. In addition, isolate NGY10 also produced 92.31 ± 3.39 g/l (11.7% v/v) and 33.66 ± 1.04 g/l (4.26% v/v) ethanol at 40 °C with the yields of 81.49% and 73.87% in the presence of 30% w/v glucose or 4× concentrated acid-pretreated rice straw hydrolysate, respectively. Moreover, isolate NGY10 displayed furfural- (1.5 g/l), 5-HMF (3.0 g/l), acetic acid- (0.2% v/v) and ethanol-(10.0% v/v) tolerant phenotypes. Conclusion A sugarcane distillery waste isolate NGY10 demonstrated high potential for ethanol production, C5 metabolic engineering and developing strategies for SSF, SScF and CBP. Electronic supplementary material The online version of this article (10.1186/s13068-019-1379-x) contains supplementary material, which is available to authorized users.

Additional file 2. FACS spectra of yeast isolates for ploidy determination using propidium iodide (PI) staining.

OBJECTIVE B lymphocyte activating factor (BAFF), a member of the tumour necrosis factor superfamily, is essential for B cell activation, differentiation and survival. Elevated circulating BAFF levels have been found in patients with several autoimmune conditions, including Graves' disease. In addition, BAFF gene variants have been associated with Graves' disease in a Taiwanese cohort, and with several other autoimmune conditions in non-Taiwanese populations. DESIGN AND METHODS We performed a case-control association study to investigate two BAFF polymorphisms (rs9514828 and rs4000607) in a UK cohort of 444 patients with Graves' disease. Genotype frequencies were compared to those from 447 local controls and more than 5000 healthy controls from the Wellcome Trust case-control consortium (WTCCC2). RESULTS There was a significant difference in the frequency of the AA genotype at rs4000607 between the Graves' disease cohort and both the local controls (P = 0.045) and the WTCCC2 controls (P = 4.56 × 10-6 ). Furthermore, the frequency of the A allele was found to be increased in the Graves' disease group compared to WTCCC2 controls (P = 0.02, OR 1.20 (95% CI 1.03-1.41). No association was observed at the rs9514828 locus. CONCLUSION Dysfunction of the humoral immune system is an obligatory pathophysiological component of Graves' disease, hence BAFF is an excellent functional candidate gene. We have demonstrated, for the first time, a significant association of the BAFF polymorphism rs4000607 with Graves' disease in a UK cohort. Further work to elucidate the role of BAFF in the pathogenesis of Graves' disease is now warranted.