Search results for " reading"
showing 10 items of 463 documents
F17-like fimbriae from an invasive Escherichia coli strain producing cytotoxic necrotizing factor type 2 toxin
1994
The F17b fimbriae encoded by the transmissible virulence plasmid Vir, also coding for cytotoxic necrotizing factor type 2, were characterized. A 5.7-kb region of Vir mediates in vitro N-acetylglucosamine-sensitive adhesion to calf intestinal villi. Sequence analysis revealed that this region codes for a structural subunit and an adhesin closely related to the F17-A and F17-G proteins encoded by the F17 fimbrial gene cluster. The F17b-A gene presents an open reading frame of 540 bp encoding a polypeptide of 180 amino acids with a putative signal peptide of 21 residues. The mature protein shows an identity of 74% with the F17-A structural subunit. This 20-kDa protein is recognized by antiseru…
Massive presence of insertion sequences in the genome of SOPE, the primary endosymbiont of the rice weevil Sitophilus oryzae
2008
Bacteria that establish an obligate intracellular relationship with eukaryotic hosts undergo an evolutionary genomic reductive process. Recent studies have shown an increase in the number of mobile elements in the first stage of the adaptive process towards intracellular life, although these elements are absent in ancient endosymbionts. Here, the genome of SOPE, the obligate mutualistic endosymbiont of rice weevils, was used as a model to analyze the initial events that occur after symbiotic integration. During the first phases of the SOPE genome project, four different types of insertion sequence (IS) elements, belonging to well-characterized IS families from γ-proteobacteria, were identif…
Data Communication Security of Advanced Metering Infrastructure in Smart Grid
2013
Advanced Metering Infrastructure (AMI) is very critical part for wired/wireless communication in Smart Grid. It involves communication of vital smart metering data to central control center for smooth functioning of smart grid. Security and reliability of data is of paramount importance for operational reliability of smart grid. AMI network is susceptible to many cyber security threats and attacks. Therefore it is desirable to prevent the data from such vulnerabilities. The paper proposes two-phase method to provide security of data using dedicated authentication server which inhibits malicious and unauthorized nodes to gain access to AMI communication network. Secure environment is created…
Effects of teacher's individualized support on children's reading skills and interest in classrooms with different teaching styles
2016
Abstract The purpose of the study was to examine whether teacher's individualized support affects students' reading skills and interest in classrooms with different teaching styles. Groups of teachers with child-centered, mixed child-centered/teacher-directed, and child-dominated teaching styles were differentiated based on observed teaching practices. The participants were 552 children (273 boys) and their 21 homeroom teachers. Teaching practices were assessed in Grade 1, teacher individualized support and students' reading skills and interest in reading were assessed twice - at the end of Grades 1 and 2.The results showed that relations between individualized support and students' later r…
The effectiveness of increased support in reading and its relationship to teachers' affect and children's motivation
2016
Abstract The aims of this study were, firstly, to identify different groups of teacher–child dyads on the basis of the longitudinal associations between teachers' individual support in reading and children's reading skills, and, secondly, to examine whether the groups thus identified differ with respect to various teacher- and child-related factors. A total of 372 teacher–child dyads were examined. The reading skills of 6- to 7-year-old Finnish-speaking children were measured at the beginning and end of Grade 1. The amount of teachers' support in reading for a particular child was gathered from teachers by questionnaires. Regression Mixture Modeling identified three latent groups of teacher…
Early cognitive predictors of PISA reading in children with and without family risk for dyslexia
2018
Abstract This study examined language skills and pre-literacy skills (phonological awareness, rapid naming, and letter knowledge) before school-age as predictors of PISA reading at age 15 in two groups of children, with (n = 88) and without (n = 70) family-risk for dyslexia . Moreover, effects of family-risk on these early predictors, reading fluency , and PISA reading were examined while controlling the effect of gender. Children were followed from age 2 to 15. Family-risk had a significant effect on early language and pre-literacy skills, reading fluency and PISA reading. A similar model predicting PISA reading fitted the data well in the Family-risk and the No family-risk group. Languag…
Can reading fluency and self-efficacy of reading fluency be enhanced with an intervention targeting the sources of self-efficacy?
2018
Abstract The first aim of the study was to analyze whether reading fluency and self-efficacy of reading fluency (SE-rf) are malleable for children (Grades 3–5) with deficits in fluent reading via a 12-week special education program targeting both reading fluency and the sources of SE-rf (SE-program). The second aim was to investigate whether changes in SE-rf are related to changes in reading fluency. The SE-program (n = 40) was contrasted with the SKILL-program (n = 42) providing training solely in reading fluency. The groups showed equal improvements in reading fluency. Positive change in SE-rf emerged only in the SE-group, and this change was associated with changes in fluency, but the as…
Nörttikulttuurin identiteettikriisi
2020
Nörttikulttuuri on identiteettikriisissä. Perinteisesti nörttimäisinä pidetyt käytänteet ja kulttuurituotteet ovat siirtyneet lähemmäs valtavirtaa, mikä on häivyttänyt rajaa nörttien ja muiden median ja teknologian käyttäjien välillä. Nörttikulttuurin sisälle tämä on heijastunut kiistaksi siitä, kuka saa osallistua nörttikulttuurin kuluttamiseen, tuottamiseen ja määrittelyyn, ja millä tavoin. Stereotypia nörttikulttuurista valkoisten heteromiesten maskuliinisena kenttänä ei koskaan ole pitänyt täysin paikkansa, mutta 2000-luvulla väitteen totuudellisuus on murentunut entisestään.
 Tässä artikkelissa tarkastelemme nörttiyden kriisiä kolmen tapaustutkimuksen kautta ja analysoimme, mitä G…
Evolutionary relationships among the members of an ancient class of non-LTR retrotransposons found in the nematode Caenorhabditis elegans.
1998
We took advantage of the massive amount of sequence information generated by the Caenorhabditis elegans genome project to perform a comprehensive analysis of a group of over 100 related sequences that has allowed us to describe two new C. elegans non-LTR retrotransposons. We named them Sam and Frodo. We also determined that several highly divergent subfamilies of both elements exist in C. elegans. It is likely that several master copies have been active at the same time in C. elegans, although only a few copies of both Sam and Frodo have characteristics that are compatible with them being active today. We discuss whether it is more appropriate under these circumstances to define only 2 elem…
Closing in on the toxic domain through analysis of a variant Clostridium difficile cytotoxin B
1995
Strain 1470 is the standard typing strain for serogroup F of Clostridium difficile containing both toxin genes, toxA-1470 and toxB-1470. A polymerase chain reaction (PCR)-based approach to the sequencing of the total toxB-1470 gene identified an open reading frame (ORF) of 7104 nucleotides. In comparison with the previously sequenced toxB of C. difficile VP10463, the toxB-1470 gene has 16 additional nucleotides, 13 within the 5'-untranslated region and three within the coding region. The M(r) of ToxB-1470 is 269,262, with an isoelectric point (IP) of 4.16. The equivalent values for ToxB are M(r) 269,709 and IP 4.13. In comparison with ToxB, ToxB-1470 differs primarily in the N-terminal regi…