There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

https://caltcm.memberclicks.net/assets/documents/acc_aha_chf_2013_guidelines.pdf

2013 ACCF/AHA Guideline for the Management of Heart Failure: A Report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines

The lion's share of bacteria in various environments cannot be cloned in the laboratory and thus cannot be sequenced using existing technologies. A major goal of single-cell genomics is to complement gene-centric metagenomic data with whole-genome assemblies of uncultivated organisms. Assembly of single-cell data is challenging because of highly non-uniform read coverage as well as elevated levels of sequencing errors and chimeric reads. We describe SPAdes, a new assembler for both single-cell and standard (multicell) assembly, and demonstrate that it improves on the recently released E+V-SC assembler (specialized for single-cell data) and on popular assemblers Velvet and SoapDeNovo (for multicell data). SPAdes generates single-cell assemblies, providing information about genomes of uncultivatable bacteria that vastly exceeds what may be obtained via traditional metagenomics studies. SPAdes is available online ( http://bioinf.spbau.ru/spades ). It is distributed as open source software.

SPAdes, a new genome assembly algorithm and its applications to single-cell sequencing ( 7th Annual SFAF Meeting, 2012)

Soil Chemical Analysis

Statistics for Spatial Data.

Encoding data independently in cyan, magenta, and yellow (CMY) print colorant channels with detection in complementary Red, green, and blue (RGB) image capture channels offers an attractive framework for extending monochrome barcodes to color with increased data rates. The undesired absorption of colorants in regions of spectral sensitivity of the noncomplementary capture channels, however, gives rise to cross-channel color interference that significantly deteriorates the performance of the color barcode system. In this paper, we propose an Expectation Maximization (EM) style algorithm to estimate and cancel this color interference and improve the overall performance of the barcode system. Our method utilizes a physical model for print-capture process where the model parameters vary depending on printer, capture device, and illumination. We estimate the model parameters using an iterative EM-style approach and obtain an estimate of CMY colorant channels from the scanned RGB barcode by using the estimated model parameters. Our experimental results show that the proposed method mitigates the effect of color interference and significantly reduces the bit error rates for the recovered data.

/pdf/improved-color-barcodes-via-expectation-maximization-style-2o3di18fya.pdf

Improved color barcodes via Expectation Maximization style interference cancellation

Thin-plate spline models have been used extensively for data-interpolation in several problem domains. In this paper, we present a tutorial overview of their theory and highlight their advantages and disadvantages, pointing out specific characteristics relevant in printer data interpolation applications. We evaluate the accuracy of thin-plate splines for printer data interpolation and discuss how available knowledge of printer's physical characteristics may be beneficially exploited to improve performance.

Thin-plate splines for printer data interpolation

Since the inception of pairing-based constructions in cryptography, the authentication in group key agreement (GKA) protocol has been usually achieved by pairings. But due to high computation cost of pairing such constructions are inefficient for practical implementation, specially for low power devices. Also, in almost all such constructions leakage of both the keys- the long-term secret key and the ephemeral key has not been considered for security guarantee. In this view, construction of an efficient and secure GKA protocol is desired. In this paper, we propose an authenticated GKA protocol without pairing. We have achieved security of the proposed scheme following the most standard and recent security notion namely the EGBG model. In particular, we have proved the authenticated key exchange (AKE) security and the mutual authentication (MA) security with full forward secrecy, considering leakage of both the keys long-term and ephemeral, adopting a comparatively efficient technique, the game hopping technique. Our proposed scheme is more efficient in the view of computation and operation time with compare to the existing similar schemes, hence it is more acceptable for the tiny processors. To the best of our knowledge ours is the first pairing free balanced AGKA protocol secure in the EGBG model.

Authenticated Group Key Agreement Protocol Without Pairing

A field experiment was conducted for three consecutive years at Vegetable Farm, Himachal Pradesh Agricultural University, Palampur to investigate the response of integrated nutrient management on cauliflower-French bean-okra cropping sequence. A total of 10 treatment combinations comprising of manures alone, their integration with plant growth promoting Rhizobacteria (PGPR) and different levels of NPK fertilizers were laid out in RBD, replicated thrice in vegetable based sequence of cauliflower, French bean and okra. Integrated use of manures, fertilizers and PGPR significantly influenced yield and plant growth attributes in all three crops. The highest yield was recorded in treatment comprising of vermicompost @ 20 t ha−1 + 75% of recommended dose of NPK + PGPR (T8) with average increase of 9.46, 2.36 and 1.14% over the recommended practice (T2) in cauliflower, French bean and okra, respectively alongwith highest annual net returns. The uptake of N, P and K was similar in T8 and T2 in the respective crops and these treatments also maintained the highest available NPK contents in the soil over T1. This can be concluded that conjoint use of vermicompost, PGPR and chemical fertilizers resulted in saving of 25% fertilizers (NPK), better performance of growth attributes, higher yield and net returns besides enhanced soil health.

Integrated nutrient supply system for cauliflower-French bean-okra cropping sequence in humid temperate zone of north-western Himalayas

This paper presents a method for designing of low power dissipation, low phase noise and high oscillation frequency based three stage Current Starved VCO (CS-VCO). In this design approach, 3-inverter stages are cascaded to achieve an optimal power dissipation of (7.48508 mW) for fundamental frequency of (3.9955 GHz). The simulation results depict that such VCO has linear voltage-frequency characteristics over a wide tuning range. The circuit performance is validated using 0.18µm CMOS technology. The analysis also shows that for 3-stage CS-VCO, the phase noise is −80.17dbc/Hz @1MHz offset frequency and −105.31dbc/Hz @10MHz offset frequency.

Gaurav Sharma

Papers

Improved color barcodes via Expectation Maximization style interference cancellation

Thin-plate splines for printer data interpolation

Authenticated Group Key Agreement Protocol Without Pairing

Integrated nutrient supply system for cauliflower-French bean-okra cropping sequence in humid temperate zone of north-western Himalayas

Design of power optimal, low phase noise three stage Current Starved VCO