The particle size distribution (PSD) of a polydisperse or multimodal system can often be difficult to obtain due to the inherent limitations in established measurement techniques. For this reason, the resolution, accuracy and precision of three new and one established, commercially available and fundamentally different particle size analysis platforms were compared by measuring both individual ...

AIDA-1 is highly enriched in postsynaptic density (PSD) fractions and is considered a major component of the PSD complex. In the present study, immunogold electron microscopy was applied to determine localization as well as the activity-induced redistribution of AIDA-1 at the PSD using two antibodies that recognize two different epitopes. In cultured rat hippocampal neurons under basal conditio...

Distribution preserving quantization (DPQ) has been proposed as a lossy coding tool that yields superior quality over conventional quantization, when applied to perceptually relevant signals. DPQ aims at the optimal rate-distortion trade-off, subject to preserving the source probability distribution. In this article we investigate the optimal DPQ for stationary Gaussian processes and the mean s...

23 PSD-95-like, disc-large (DLG) family membrane-associated guanylate kinase proteins 24 (PSD/DLG-MAGUKs) are essential for regulating synaptic AMPA receptor (AMPAR) 25 function and activity-dependent trafficking of AMPARs. Using a molecular replacement 26 strategy to replace endogenous PSD-95 with SAP97β, we show that the prototypic β27 isoform of the PSD-MAGUKs, SAP97β, has distinct NMDA rece...

Soil particle-size distribution (PSD) is an important soil feature that associated with erosion, fertility, and physical chemical properties. However, very few studies have been carried out to investigate degradation using the fractal dimension (D) of PSD soils from different land-use types in calcareous Iran. For this study, 120 samples (0–20 cm) were collected Fars Province, various basic pro...

A numerical model BAEROSOL for solving the general dynamic equation (GDE) of aerosols is presented. The goal was to model the capture of volatilized metals by sorbents under incinerator-like conditions. The model is based on algorithms presented by Jacobson and Turco [Aerosol Science and Technology 22 (1995) 73]. A hybrid size bin was used to model growth and formation of particles from the con...

Factors that control differentiation of presynaptic and postsynaptic elements into excitatory or inhibitory synapses are poorly defined. Here we show that the postsynaptic density (PSD) proteins PSD-95 and neuroligin-1 (NLG) are critical for dictating the ratio of excitatory-to-inhibitory synaptic contacts. Exogenous NLG increased both excitatory and inhibitory presynaptic contacts and the freq...

Understanding materials with dimensions down to a few nanometers is of major importance for fundamental science as well prospective applications. Structural transformation and phonon-confinement effects in the nanodiamonds (NDs) have been theoretically predicted below 3 nm size. Here, we investigate effect size on surface chemistry, microscopic structure, Raman scattering high-pressure high-tem...

in this study, sio2 nanoparticles were successfully synthesized via sol-gel precipitation method and the effects of different parameters such as temperature, ethanol, ammonia and tetraethylorthosilicate (teos) contents based on water were investigated in a systematic way applying taguchi experimental design method. it was found that, among all the investigated parameters, ethanol as a co-solven...

To study the heterogeneity and local of gangue particle size distribution (PSD) under ball milling, from northern Shaanxi coal mine was taken as a research object. The multifractal pattern PSD variation trend characteristic parameters different ball-to-gangue ratios grinding times were analyzed by introducing theory microscopic methods such laser analysis scanning electron microscopy. results s...