Alzheimer's disease (AD) sometimes presents with prominent executive dysfunction and associated prefrontal cortex atrophy. The impact of such executive deficits on episodic memory performance as well as their neural correlates in AD, however, remains unclear. The aim of the current study was to investigate episodic memory and brain atrophy in AD patients with relatively spared executive functio...

Subunit components of R-phycoerythrins (R-PEs) prepared from five marine macro red algae were analyzed by sodium dodecyl sulfate -polyarylamide gel electrophoresis (SDS-PAGE) and by isoelectric focusing (IEF) in pH gradients range of 3.0 to 9.5, 2.5 to 5.0 and 4.0 to 6.5. Riboflavin was used to catalyze polymerization of IEF gel in acidic pH gradients, and ethanolamine and HEPES were selected a...

Although the internal electric field (IEF) of bismuth oxyiodide (BiOI) is acknowledged as a potent driving force for efficient charge separation, enhancing intensity IEF remains challenge. Herein, highly crystalline BiOI nanosheets with I-rich surface are employed to intensify and direct migration. In comparison I-poor nanosheets, which possess Bi−O layer termination I-defects, demonstrates 62....

A total of 281 Staphylococcus aureus strains selected from those submitted to the Centers for Disease Control for phage typing between 1956 and 1982 were tested for the production of toxic-shock-associated protein (TSAP) by isoelectric focusing (IEF) and solid-phase radioimmunoassay. The results suggest that the observed temporal trends in the incidence of toxic-shock syndrome were not primaril...

A more than 20000-fold purification of human serum lipoamidase is described. This was accomplished by (NH4)2SO4 precipitation and chromatography on DEAE-Sepharose, Blue Sepharose CL-6B and phenyl-Sepharose CL-4B, followed by preparative isoelectric focusing (IEF) and finally by gel-permeation chromatography. Co-precipitation and co-chromatography of lipoamidase and biotinidase activities with e...

∗Research (partially) supported by Hungarian National Foundation for Scientific Research, grant nos. K68398, K75016, FP7 IEF grant GEOSUMSETS. ∗∗Research (par-

SYNONYM Within-element term frequency, Inverse element frequency DEFINITION Classical ranking algorithms in information retrieval make use of term statistics, the most common (and basic) ones being within-document term frequency, tf, and document frequency, df. tf is the number of occurrences of a term in a document and is used to reflect how well a term captures the topic of a document, wherea...

The keratins and other cytoskeletal proteins expressed by normal, preneoplastic, and malignant mammary tissues in BALB/c mice and by cells in primary cultures established from these tissues were analyzed and compared. The preneoplastic lesions were hyperplastic alveolar nodules (HAN) derived originally from mice treated by hormonal stimulation (D2), exposed to a chemical carcinogen (C4), or spo...

[1] The topic of the proper functional form of the ionospheric-magnetospheric response to solar wind conditions is a subject of much discussion and debate. While numerous studies over the decades have shown linear relationships [e.g., Burton et al., 1975; Reiff et al., 1981; Boyle et al., 1997], others have found nonlinear relationships [e.g., Hill et al., 1976; Wygant et al., 1983; Weimer, 200...