Density functional theory (DFT-D) and semi-empirical (PM3-D) methods having an added dispersion correction have been used to study stabilising carbohydrate-aromatic and amino acid-aromatic interactions. The interaction energy for three simple sugars in different conformations with benzene, all give interaction energies close to 5 kcal mol(-1). Our original parameterization of PM3 (PM3-D) seriou...

Early neural activity, both prenatal spontaneous bursts and early visual experience, is believed to be important for dendritic proliferation and for the maturation of neural circuitry in the developing retina. In this study, we have investigated the possible role of early neural activity in shaping developing turtle retinal ganglion cell (RGC) dendritic arbors. RGCs were back-labelled from the ...

Attenuated second-order Møller-Plesset perturbation theory (MP2) within the finite aug-cc-pVTZ (aTZ) basis set is developed for inter- and intra-molecular non-bonded interactions. A single attenuation parameter is optimized on the S66 database of 66 intermolecular interactions, leading to a very large RMS error reduction by a factor of greater than 5 relative to standard MP2/aTZ. Attenuation in...

(*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. This patent is subject to a terminal dis claimer. 323–326. " N. I. Khan et al., " Developing strategies and organisms for biocontrol of head scab of wheat " , Phytopathology 88:S47 (1998). Performance of selected antagonists of Fusarium head blight against a range of Gibberel...

In 2003, an outbreak of severe acute respiratory syndrome (SARS) occurred in Hong Kong and spread worldwide. The SARS coronavirus (SARCoV) caused a highly lethal disease and disproved the concept that human coronaviruses are generally associated with mild respiratory disease. Another new coronavirus—HCoV-HKU1—that circulates commonly in the human population and causes relatively milder respirat...

The effects of hot-carrier stress (HCS) on the performance of NMOSFETs and a fully integrated low noise amplifier (LNA) made of NMOSFETs in a 0.18 lm CMOS technology are studied. The main effects of HCS on single NMOSFETs are an increase in threshold voltage and a decrease in channel carrier mobility, which lead to a drop in the biasing current of the transistors. In the small-signal model of t...

This work aimed to characterize 20 isolates obtained from upland rice plants, based on phenotypic (morphology, enzymatic activity, inorganic phosphate solubilization, carbon source use, antagonism), genotypic assays (16S rRNA sequencing) and plant growth promotion. Results showed a great morphological, metabolic and genetic variability among bacterial isolates. All isolates showed positive acti...

This paper presents two novel techniques to control the input match and the output match for 2.45 GHz CMOS inductively degenerated Low Noise Amplifier (LNA). These control techniques allow the compensation of all deviation of these parameters caused by the undesirable factors such as Process-Temperature-Voltage (PVT) variations, parasitic elements, etc. These techniques are studied theoreticall...

This paper presents a high power gain (S21) and low Noise Figure (NF) 3.1-10.6 GHz common gate (CG) CMOS ultra wideband (UWB) low noise amplifier (LNA) using active gm-boosted technology, T-match input network, self-body-bias, current reused and noise cancelling technique. Wideband input impedance matching was achieved by using the proposed T-match input network to improve the input matching at...

In this paper a three stage Active Inductor (AI) based Low Noise Amplifier (LNA) for Ultra Wide Band (UWB) receiver is presented. A fully differential topology has been adopted in order to improve the circuit robustness against unwanted common mode signals. T-coil peaking is used to enhance the bandwidth over the entire Ultra Wide Band frequency range. Active inductor is employed because of its...