BACKGROUND Studies using clinical measures to track AD progression often assume linear declines over the entire course of the disease, which may not be justified. The objective of this study was to model change in measures of the clinical severity of Alzheimer's disease (AD) over time. METHODS We developed a method to apply growth curve models to prospective data and characterize AD patients'...

The purpose of this study was to investigate the molecular biological characteristics of malignant mucosal melanoma (MMM) and adenoid cystic carcinoma (ACC) of the head and neck. We analyzed the common genetic abnormalities that may help to identify the loci in the genes involved in the development of MMM and ACC of the head and neck by PCR-LOH on chromosomes 1p, 6q, 9p, 10q, 11q, 12q, 17p, and...

Recent progress in high-speed communication networks, large capacity storage devices, digitalized media, and data compression technologies have resulted in a variety of multimedia applications using the integration of text, images, audio, graphics, animation, and full-motion video. For traditional text-based database management systems, data access and manipulation have advanced considerably. H...

In this study, ZIF-8 MOF nanocrystals were synthesized and post-synthetically modified by applying different cation exchange strategies. Addition of cadmium nitrate in either methanol or DMF followed magnetic stirring gentle heating led to the incorporation a small amount Cd (II) ions into crystal structure most cases, as clearly demonstrated several characterization techniques including PXRD, ...

The study of type III RNases constitutes an important area in molecular biology. It is known that the pac1 gene encodes a particular RNase III that shares low amino acid similarity with other genes despite having a double-stranded ribonuclease activity. Bioinformatics methods based on sequence alignment may fail when there is a low amino acidic identity percentage between query sequence and oth...

Porous low-pressure membranes have been used as active in water treatment and support for thin-film composite desalination gas separation applications. In this article, microfiltration polysulfone (PSf)mixed-matrix (MMM) containing amine-functionalized graphene oxide (GO-NH2) were fabricated via a phase inversion process characterized using XPS, SEM, AFM, DMA, XRD, contact angle measurements. T...

Abstract This research paper aims to model Mass Movements Susceptibility (MMS) in the province of Tétouan. First, we identified characteristics and spatial mapping different types MM (collapse, mudflows, complex landslides) by means interpretation satellite images from fieldwork. Subsequently, selected predictive parameters controlling occurrence e.g. lithology, land use, fault density, hydrogr...

The separation of air (O 2 /N ) via a polymeric membrane has recently piqued the interest academic researcher as well industrial sector. Because its remarkable characteristics, emerged one innovative and fast growing technology. However, two major problems faced by technology, which hinder growth in commercial sector are, 1): trade-off between permeability selectivity. 2): Maintaining physical ...