English-speaking children with specific language impairment (SLI) are known to have particular difficulty with the acquisition of grammatical morphemes that carry tense and agreement features, such as the past tense -ed and third-person singular present -s. In this study, an Extended Optional Infinitive (EOI) account of SLI is evaluated. In this account, -ed, -s, BE, and DO are regarded as fini...

A ring R is called strongly clean if every element of R is the sum of a unit and an idempotent that commute. By SRC factorization, Borooah, Diesl, and Dorsey [3] completely determined when Mn(R) over a commutative local ring R is strongly clean. We generalize the notion of SRC factorization to commutative rings, prove that commutative n-SRC rings (n ≥ 2) are precisely the commutative local ring...

Medical Research Council Laboratory of Molecular Biology, Hills Road, Cambridge, UK Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 303222, USA Section of Structural Biology, The Institute of Cancer Research, 237 Fulham Road, London, UK $ Current address: Laboratory of Biochemistry and Molecular Biology, NCI, National Institutes of Health, Bethesda, Maryland 20...

It is unclear to what extent the known psychosomatic benefits of exercise hold true for the obese. In the present study, we investigated the hypothesis that the psychosomatic health and components of general intelligence, such as the capacity for logical-deductive tasks, would be better in regularly exercising than non-exercising obese women. We addressed the issue in a self-reported survey stu...

UNLABELLED In the context of the use of sophisticated (i.e., low-frequency) words with children with specific language impairment (SLI), the present study investigates the relationship between maternal interactive support for meaning and both conversational responsiveness and lexical development of children with SLI. Fifteen Italian-speaking children with SLI (age range: 3;4-5;6) and two groups...

We have identified an RNA-specific adenosine deaminase (termed Tad1p/scADAT1) from Saccharomyces cerevisiae that selectively converts adenosine at position 37 of eukaryotic tRNAAla to inosine. The activity of purified recombinant Tad1p depends on the conformation of its tRNA substrate and the enzyme was found to be inactive on all other types of RNA tested. Mutant strains in which the TAD1 gene...

CONTEXT Cholinesterase (ChE) specific activity is the ratio of ChE activity to ChE mass and, as a biomarker of exposure to cholinesterase inhibitors, has a potential advantage over simple ChE activity. OBJECTIVE To examine the association of several potential correlates (serum arylesterase/paraoxonase activity, serum albumin, sex, age, month of blood collection, and smoking) with plasma ChE s...

The activities of liver transfer RNA (tRNA) methyltransferases from control or ovariectomized female rats were found to be higher than those of control or castrated males. Administration of testosterone to ovariectomized females caused activity to decrease to the level of the males. Conversely, administration of estrogen to castrated males resulted in liver enzyme levels similar to those of the...

information on the thermophysical properties of the iranian ultrafiltrated (uf) white cheese is very limited. in this research, those thermal properties determined experimentally were thermal conductivity, specific heat, density and water activity. the thermal conductivity and specific heat of iranian ultrafiltrated white cheese (iufwc) ranged from 0.447 to 0.480 w m-1 °c-1 and from 3.871 to 4....