2,055 research outputs found
Developing Linguistic Literacy: Perspectives from Corpus Linguistics and Multi-Dimensional Analysis
In their conceptual framework for linguistic literacy development, Ravid & Tolchinsky synthesize research studies from several perspectives. One of these is corpus-based research, which has been used for several large-scale research studies of spoken and written registers over the past 20 years. In this approach, a large, principled collection of natural texts (a \u27corpus\u27) is analysed using computational and interactive techniques, to identify the salient linguistic characteristics of each register or text variety. Three characteristics of corpus-based analysis are particularly important (see Biber, Conrad & Reppen 1998):(1) a special concern for the representativeness of the text sample being analysed, and for the generalizability of fndings; (2) overt recognition of the interactions among linguistic features: the ways in which features co-occur and alternate; (3) a focus on register as the most important parameter of linguistic variation: strong patterns of use in one register often represent only weak patterns in other registers. Corpus studies have documented the linguistic differences among spoken and written registers in English and other languages. Further, by analyzing systematic corpora produced by students at different stages, these same techniques have been used to track the patterns of extended language development associated with literacy. Two major patterns emerge from studies in this research tradition: (1) adult written language is dramatically different from natural conversation; and (2) written language is by no means homogeneous: rather, there are major linguistic differences among written registers. Thus, the developmental acquisition of linguistic literacy requires control over the patterns of register variation, in addition to a mastery of the mechanics of the written mode
The PHaVE List: a pedagogical list of phrasal verbs and their most frequent meaning senses
As researchers and practitioners are becoming more aware of the importance of multi-word items in English, there is little doubt that phrasal verbs deserve teaching attention in the classroom. However, there are thousands of phrasal verbs in English, and so the question for practitioners is which phrasal verbs to focus attention upon. Phrasal verb dictionaries typically try to be comprehensive, and this results in a very large number of phrasal verbs being listed, which does not help practitioners in selecting the most important ones to teach or test. There are phrasal verb lists available (Gardner and Davies, 2007; Liu, 2011), but these have a serious pedagogical shortcoming in that they do not account for polysemy. Research indicates that phrasal verbs are highly polysemous, having on average 5.6 meaning senses, although many of these are infrequent and peripheral. Thus practitioners also need guidance about which meaning senses are the most useful to address in instruction or tests. In response to this need, the PHrasal VErb Pedagogical List (PHaVE List) was developed. It lists the 150 most frequent phrasal verbs, and provides information on their key meaning senses, which cover 75%+ of the occurrences in the Corpus of Contemporary American English. The PHaVE List gives the percentage of occurrence for each of these key meaning senses, along with definitions and example sentences written to be accessible for second language learners, in the style of the General Service List (West, 1953). A usersâ manual is also provided, indicating how to use the list appropriately
Atkins v The Emperor: the cautious use of unreliable expert opinion
What happens to a country under constant surveillance? The recent decision in Atkins v The Queen provides a partial answer.1 The sheer availability of images seems to be driving decisions about their admissibility and use as identification evidence. Confronted with CCTV recordings associated with criminal activities English courts have been reluctant to restrict their admission or impose limitations on the scope or form of incriminating opinion derived from them. Although the Court of Appeal decision in Atkins v The Queen is concerned primarily with the way in which an opinion derived from CCTV images was expressed, the decision exposes jurisprudential weakness and continuing problems with photo comparison and facial-mapping evidence
Predicting online privacy protection for Facebook users with an extended theory of planned behavior
This is the final version. Available on open access from Routledge via the DOI in this record.âŻData availability statement:
The research was pre-registered prior to data collection and the data and materials are available at https://doi.org/10.17605/OSF.IO/QAZVUThe current research uses an extended theory of planned behavior (TPB)
model to predict Facebook usersâ (N = 376) intentions to protect their privacy
online. It aims to replicate and extend Saeri et al. (2014) who found partial
support for an extended TPB model that included descriptive norms, perceived risk, and trust. Facebook users completed an online questionnaire
assessing attitudes, norms (subjective and group), perceived behavioral
control (PBC), perceived risk, trust, privacy concerns, and intentions to protect their privacy online. Results revealed that attitudes, subjective norms,
and PBC (i.e. the TPB) predicted online privacy intentions, as well as descriptive group norms and privacy concerns. However, perceived risk, trust, and
injunctive group norms were not significant unique predictors of online
privacy intentions. The implications for understanding influences on individualsâ willingness to protect their privacy online are discussed
Sodium-dependent phosphate transporters in osteoclast differentiation and function.
Osteoclasts are multinucleated bone degrading cells. Phosphate is an important constituent of mineralized bone and released in significant quantities during bone resorption. Molecular contributors to phosphate transport during the resorptive activity of osteoclasts have been controversially discussed. This study aimed at deciphering the role of sodium-dependent phosphate transporters during osteoclast differentiation and bone resorption. Our studies reveal RANKL-induced differential expression of sodium-dependent phosphate transport protein IIa (NaPi-IIa) transcript and protein during osteoclast development, but no expression of the closely related NaPi-IIb and NaPi-IIc SLC34 family isoforms. In vitro studies employing NaPi-IIa-deficient osteoclast precursors and mature osteoclasts reveal that NaPi-IIa is dispensable for bone resorption and osteoclast differentiation. These results are supported by the analysis of structural bone parameters by high-resolution microcomputed tomography that yielded no differences between adult NaPi-IIa WT and KO mice. By contrast, both type III sodium-dependent phosphate transporters Pit-1 and Pit-2 were abundantly expressed throughout osteoclast differentiation, indicating that they are the relevant sodium-dependent phosphate transporters in osteoclasts and osteoclast precursors. We conclude that phosphate transporters of the SLC34 family have no role in osteoclast differentiation and function and propose that Pit-dependent phosphate transport could be pivotal for bone resorption and should be addressed in further studies
Social adaptation following intestinal stoma formation in people living at home: a longitudinal phenomenological study
Purpose: Intestinal stoma formation profoundly changes the relationship between a person and their social world. The aim of this study was to understand the experience of living with a new stoma; this paper explores the theme â disrupted social world,â highlighting how stoma-forming surgery impacts on individualsâ abilities to participate and interact socially over time. Method: A longitudinal phenomenological approach. Twelve participants with a new stoma were recruited using purposeful sampling. Data were collected at three, nine and fifteen months following surgery through in-depth, unstructured interviews and analysed using a bespoke iterative framework. Results: Three categories were identified: participation in the social environment; interpersonal relationships: changes and challenges; and setting and achieving goals. Conclusions: Stoma-forming surgery changes the ways people relate to their social environment and connect with others, creating self-consciousness and impeding social confidence and autonomy. Understanding the social implications of stoma-forming surgery can help clinicians to provide responsive and appropriate support to facilitate social rehabilitation
Using audio stimuli in acceptability judgment experiments
In this paper, we argue that moving away from written stimuli in acceptability judgment experiments is necessary to address the systematic exclusion of particular empirical phenomena, languages/varieties, and speakers in psycholinguistics. We provide userâfriendly guidelines for conducting acceptability experiments which use audio stimuli in three platforms: Praat, Qualtrics, and PennController for Ibex. In supplementary materials, we include data and R script from a sample experiment investigating English constituent order using written and audio stimuli. This paper aims not only to increase the types of languages, speakers, and phenomena which are included in experimental syntax, but also to help researchers who are interested in conducting experiments to overcome the initial learning curve. Video Abstract link: https://www.youtube.com/watch?v=GoWYY1O9ugsPeer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/156434/2/lnc312377_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/156434/1/lnc312377.pd
Developing effective practice learning for tomorrow's social workers
This paper considers some of the changes in social work education in the UK, particularly focusing on practice learning in England. The changes and developments are briefly identified and examined in the context of what we know about practice learning. The paper presents some findings from a small scale qualitative study of key stakeholders involved in practice learning and education in social work and their perceptions of these anticipated changes, which are revisited at implementation. The implications for practice learning are discussed
Detection of Synaptic Proteins in Microglia by Flow Cytometry.
A growing body of evidence indicates that microglia actively remove synapses in vivo, thereby playing a key role in synaptic refinement and modulation of brain connectivity. This phenomenon was mainly investigated in immunofluorescence staining and confocal microscopy. However, a quantification of synaptic material in microglia using these techniques is extremely time-consuming and labor-intensive. To address this issue, we aimed to quantify synaptic proteins in microglia using flow cytometry. With this approach, we first showed that microglia from the healthy adult mouse brain contain a detectable level of VGLUT1 protein. Next, we found more than two-fold increased VGLUT1 immunoreactivity in microglia from the developing brain (P15) as compared to adult microglia. These data indicate that microglia-mediated synaptic pruning mostly occurs during the brain developmental period. We then quantified the VGLUT1 staining in microglia in two transgenic models characterized by pathological microglia-mediated synaptic pruning. In the 5xFAD mouse model of Alzheimer's disease (AD) microglia exhibited a significant increase in VGLUT1 immunoreactivity before the onset of amyloid pathology. Moreover, conditional deletion of TDP-43 in microglia, which causes a hyper-phagocytic phenotype associated with synaptic loss, also resulted in increased VGLUT1 immunoreactivity within microglia. This work provides a quantitative assessment of synaptic proteins in microglia, under homeostasis, and in mouse models of disease
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