Miracle-dz/UniFAR-FTUs huggingface dataset:
Sentiment classification of Chinese online reviews: a comparison of factors influencing performances

With the growing availability and popularity of online consumer reviews, people have been trying to seek sentiment-aware applications to gather and understand these opinion-rich texts. Thus, sentiment classification arises in response to analyse opinions of others automatically. In this paper, experiments of sentiment classification of Chinese online reviews across different domains are conducted by considering a couple of factors which potentially influence the sentiment classification performance. Experimental results indicate that the size of training sets and the number of features have certain influence on classification accuracy. In addition, there is no significant difference in classification accuracy when using Document Frequency, Chi-square Statistic and Information Gain, respectively, to reduce dimensionality. Low-order n-grams outperforms high-order n-grams in terms of accuracy if n-grams is taken as features. Furthermore, when words and combination of words are selected as features, the accuracy of adjectives is much close to that of NVAA (the combination of nouns, verbs, adjectives and adverbs), and is better than others as well.
Role-identity salience

The concept of role-identity salience plays a critical role in many contemporary discussions of the self-concept. It has also been invoked, in one form or another, in a variety of other areas within sociology. However, there has been conspicuously little empirical investigation of the concept. This paper attempts to fill this void with an empirical examination of role-identity salience as it applies to the act of voluntary blood donation. The data are based on 658 responses to a mail questionnaire sent to a sample of blood donors. Analyses are organized into two sections. In the first section a number of hypotheses specifying correlates with salience of the blood donor role-identity are examined. Significant associations between salience and self-definition, a tendency to view others in terms of the role-identity, increased social relations premised on the role-identity, expectations from other, andfuture behavior, were found. In the second section, salience and the variables mentioned above are used to predict number of donations six months after completing the questionnaire. Results from a regression analysis find support for salience, self-definition, and social relationships as significant predictors. Implications and limitations of the findings are discussed.
Invited to academia. Recruited for science or teaching in Education Sciences

ABSTRACT In the context of higher education in Sweden, we see how major policy change is forming the field of Education Sciences. This change has promoted an increased focus on competitiveness, while reducing inefficiencies in mass-education. It has given legitimacy to specific recruitment strategies and career paths, but can also explain what determines how career capital is accumulated. The aim of the present study is to describe how academics experience recruitment and positioning processes in their career. How do academics gain career capital and symbolic value in career and use it to gain recognition? The results illustrate three career paths, identified as “the invited”, “the useful” or “the uninvited”. Thus, the present article describes a Matthew effect in recruitment, where young PhD students are positioned early on as either promising researchers, teachers, or as substitutes who are sorted out from both research and education.
Supernova Remnant 1987A: Opening the Future by Reaching the Past

We report an up-turn in the soft X-ray light curve of supernova remnant (SNR) 1987A in late 2003 (~6200 days after the explosion), as observed with the Chandra X-ray Observatory. Since early 2004, the rapid increase of the 0.5-2 keV band X-ray light curve can no longer be described by the exponential density distribution model with which we successfully fitted the data between 1990 and 2003. Around day ~6200, we also find that the fractional contribution to the observed soft X-ray flux from the decelerated shock begins to exceed that of the fast shock and that the X-ray brightening becomes"global"rather than"spotty". We interpret these results as evidence that the blast wave has reached the main body of the dense circumstellar material all around the inner ring. This interpretation is supported by other recent observations, including a deceleration of the radial expansion of the X-ray remnant, a significant up-turn in the mid-IR intensities, and the prevalence of the optical hot spots around the entire inner ring, all of which occur at around day 6000. In contrast to the soft X-ray light curve, the hard band (3-10 keV) X-ray light curve increases at a much lower rate which is rather similar to the radio light curve. The hard X-ray emission may thus originate from the reverse shock where the radio emission is likely produced. Alternatively, the low increase rate of the hard X-rays may simply be a result of the continuous softening of the overall X-ray spectrum.
Seasonal cycle of copper speciation in Gullmar Fjord, Sweden

The chemical speciation of dissolved Cu was investigated by voltammetric methods in Gullmar Fjord, Sweden, over the course of a year from September 1996 until August 1997. Sampling was carried out on a roughly monthly basis, with an intensive survey carried out in May 1997. Surface water temperatures ranged from 21 to 22°C, whereas bottom waters in the fjord were approximately 6°C throughout. Macronutrient concentrations in the fjord during the period of the survey were investigated independently by the Göteborgs och Bohus lä4ns Vattenvårdsförbund (Water Quality Association of Göteborg and Bohus). Surface phosphate concentrations were highest in early spring with low levels (<0.1 mmol kg‐1) over the late spring and summer. Nitrate and silicate showed a similar pattern to phosphate with the exception of high concentrations encountered in surface waters when low salinity plumes caused by runoff were encountered. A period of calm, sunny weather in January 1997 saw the initiation of the spring bloom some 2 months earlier than usual. Dissolved Cu speciation was dominated by organic complexation (over 99.8%) throughout this study. Strong Cu binding ligands (log K > 12.5) were not detected during the winter or early spring and could be related to the temperature‐related seasonal appearance of the cyanobacterium Synechoccocus in these waters. The appearance of the strong Cu ligands led to a decrease in the concentration of free copper, resulting in a seasonal cycle for free copper in the fjord. This is the first study to examine Cu speciation over an annual cycle in a coastal environment.
Social enterprises as spaces of encounter for mental health consumers

Recent geographical scholarship has suggested that disabled people's encounters with non-disabled others might constitute an important mechanism for community participation and social inclusion. Existing studies recognise the importance of the immediate material and relational character of place in shaping the nature of encounters between disabled and non-disabled people. Yet there has been little attention – beyond questions of physical access – to the ways in which places might be practically created to facilitate positive interactions. In this paper, we examine the potential of social enterprises to serve as a space of encounter between disabled workers and non-disabled others. Drawing on interviews and focus groups, we explore how and to what extent social enterprises (coffee shops, catering businesses, cleaning and janitorial companies, courier services) create supportive environments for interaction and encounter between workers with mental health problems, clients and members of the public. Our analysis suggests that specific efforts to accommodate and support mental health consumers in their employment-based interactions contributes to an enabling relational space for encounters that begin to unsettle prevailing assumptions about mental ill health. At the same time, broader social conditions and enduring assumptions about mental health consumers work to reinforce disabling differences.
A Framework for Differentiated Services

Internet Drafts are draft documents valid for a maximum of six months. Internet Drafts may be updated, replaced, or obsoleted by other documents at any time. It is not appropriate to use Internet Drafts as reference material or to cite them other than as a "working draft" or "work in progress". To learn the current status of any Internet-Draft, please check the 1id-abstracts.txt listing contained in the Internet-Drafts Shadow Directories on ftp. 1. Abstract This document provides a general description of issues related to the definition, configuration and management of services enabled by the differentiated services architecture [DSARCH]. This document should be read along with its companion documents, the differentiated services architecture [DSARCH] and the definition of the DS field [DSHEAD]. A glossary of specialist terms used may be found in [DSARCH].
Retinal thickness decreases with age: an OCT study

Background/aim: In three dimensional optic disc tomography a reference plane is required to calculate optic disc rim or cup values. The position of the reference plane often depends on the retinal thickness at the temporal disc margin. Originally it was assumed that the retinal thickness at the temporal disc margin is independent of age. The aim of the study was to check this hypothesis using optical coherence tomography, and additionally to determine the reproducibility of OCT measurements in this area. Methods: 100 eyes of 100 healthy volunteers were included in this study. Three OCT scans were performed on each eye. The scans were aligned vertically and placed at the temporal edge of the optic disc. For each eye, the thickness of the whole retina as well as the thickness of the retinal nerve fibre layer were calculated together with their coefficients of variation. Thereafter retinal thickness and nerve fibre layer thickness were correlated with age. Results: The mean retinal thickness was 249 (SD 22) μm. The mean nerve fibre layer thickness was 109 (22) μm. The mean coefficients of variation were 3.5% (total retinal thickness) and 8.0% (nerve fibre layer thickness). Both the total retinal thickness and the nerve fibre layer thickness were significantly correlated with age (total retina: y = 269.5 − 0.53 × x; R2 = 0.133; p = 0.0002, nerve fibre layer: y = 126.8 − 0.44 × x; R2 = 0.094; p<0.0019. Conclusions: Using OCT scans the total retinal thickness can be calculated with high reproducibility (coefficient of variation = 3.5%). The reproducibility of nerve fibre layer thickness measurements is clearly lower (coefficient of variation = 8.0%). Both the total retinal thickness and the nerve fibre layer thickness significantly decrease with age. This influence of the age related decrease in RNFL/retinal thickness on the reference plane, however, is negligible.
The relationship between the level of serum 25-hydroxyvitamin D and renal function in patients without chronic kidney disease: a cross-sectional study.

OBJECTIVES Low level of vitamin D has been suggested as a risk factor for chronic kidney disease (CKD). However, little is known about the effect of vitamin D on renal function in healthy subjects. Our aim was to investigate the question of whether vitamin D status is associated with renal function in subjects without CKD. METHODS In this cross-sectional study, 1,648 subjects aged older than 20 years were recruited as study participants. Subjects diagnosed with either CKD or other conditions that could influence serum vitamin D were excluded. Estimated glomerular filtration rate (eGFR) from serum creatinine (sCr) was used for the determination of renal function. Vitamin D status was determined by the measurement of serum 25-hydroxyvitamin D [25(OH)D] levels. RESULTS In men, 25(OH)D showed significant positive correlation with age (r = 0.127, P < .001), skeletal muscle mass (r = 0.077, P = .017), sCr (r = 0.128, P < .001), and negative correlation with body fat (r = -0.065, P = .044), eGFR (r = -0.152, P < .001). In women, 25(OH)D showed negative correlation with eGFR (r = -0.085, P = .026), but not with age and body composition. In multiple linear regression analysis, 25(OH)D (β = 0.114, P < .001), total muscle mass (β = 0.202, P = .026), and age (β = 0.117, P = .003) were an independent determinant of sCr in men; in women, 25(OH)D (β = 0.086, P = .023), total muscle mass (β = 0.152, P < .001) were variables showing significant association with sCr. CONCLUSIONS Higher level of 25(OH)D is independently associated with sCr elevation. We suggest that a positive correlation between 25(OH)D and muscle mass could be attributed to sCr. It is thought to be another mechanism of serum 25(OH)D level in renal function in populations without CKD.
Trust in Scientists on Climate Change and Vaccines

On climate change and other topics, conservatives have taken positions at odds with a strong scientific consensus. Claims that this indicates a broad conservative distrust of science have been countered by assertions that while conservatives might oppose the scientific consensus on climate change or evolution, liberals oppose scientists on some other domains such as vaccines. Evidence for disproportionately liberal bias against science on vaccines has been largely anecdotal, however. Here, we test this proposition of opposite biases using 2014 survey data from Oregon and New Hampshire. Across vaccine as well as climate change questions on each of these two surveys, we find that Democrats are most likely to say they trust scientists for information, and Tea Party supporters are least likely, contradicting the proposition of opposite bias. Moreover, partisan divisions tend to widen with education. Theoretical explanations that have been offered for liberal trust or conservative distrust of science in other specific domains such as climate change or environmental protection fit less well with these results on vaccines. Given the much different content of climate change and vaccine issues, the common political pattern appears more consistent with hypotheses of broader ideological divisions on acceptance of science.
Forgetfulness as an Interactive Resource

Using as data videotapes of conversation in natural settings, this paper investigates (1) how displaying uncertainty is organized as interactive activity, (2) how this activity can be used to modify the participation framework of the moment, (3) the consequences this has for subsequent interaction and (4) how such events can invoke larger social identities in the midst of moment to moment interaction. Alternative syntactic and paralinguistic techniques for displaying uncertainty make relevant different types of responses from recipients. Such structure provides speakers with resources for shaping emerging interaction.
Predictors of quality of life for individuals with dementia

Although a growing number of investigations examine the lived experience of individuals with dementia (IWDs), few draw upon a conceptual model to explore inter-relationships among background characteristics, stressors, and outcomes (Menne, 2006). This study is guided by a conceptual model that draws upon the broader stress literature to examine predictors of IWD quality of life. Relying primarily on IWD self-reported data (n = 211), multivariate ordinary least squares regression analysis was used to determine the predictors of IWDs’ quality of life. Results indicate that IWDs who report poorer quality of life are more likely to be African-American, have a non-spousal caregiver, have more depressive symptoms, be less involved in daily decision-making, and have more negative strain with their caregiver. These findings are discussed in the context of current and practical interventions that address the strengths and needs of IWDs and their family caregivers.
Edge-functionalized and substitutionally doped graphene nanoribbons: Electronic and spin properties

Graphene nanoribbons are the counterpart of carbon nanotubes in graphene-based nanoelectronics. We investigate the electronic properties of chemically modified ribbons by means of density functional theory. We observe that chemical modifications of zigzag ribbons can break the spin degeneracy. This promotes the onset of a semiconducting-metal transition, or of an half-semiconducting state, with the two spin channels having a different bandgap, or of a spin-polarized half-semiconducting state -where the spins in the valence and conduction bands are oppositely polarized. Edge functionalization of armchair ribbons gives electronic states a few eV away from the Fermi level, and does not significantly affect their bandgap. N and B produce different effects, depending on the position of the substitutional site. In particular, edge substitutions at low density do not significantly alter the bandgap, while bulk substitution promotes the onset of semiconducting-metal transitions. Pyridine-like defects induce a semiconducting-metal transition.
A postmortem analysis of major causes of early death in patients hospitalized with COPD exacerbation.

BACKGROUND Mortality from COPD is increasing worldwide, but detailed causes of death are rarely assessed, particularly in low-income countries. METHODS In a retrospective study, we reviewed the autopsy reports and medical records of deceased patients admitted to the hospital for severe exacerbation of COPD, from January 2005 to December 2007, at the Institute for Pulmonary Diseases of Vojvodina, Serbia. RESULTS Forty-three patients with a hospital admission diagnosis of COPD exacerbation underwent autopsy; all had died within 24 h of admission to the hospital. Twenty-three patients (54%) had a long COPD history (> 10 years), and 19 patients (44%) had more than one hospitalization in the last year of life. The median age at death was 70 years (interquartile range, 65 to 75 years), and male sex was predominant (n = 31; 72%). The main (primary) causes of death were reported as cardiac failure (n = 16; 37.2%), pneumonia (n = 12; 27.9%), and pulmonary thromboembolism (PTE) (n = 9; 20.9%). Respiratory failure due to a progression of COPD was the primary cause of death in six patients (14%). Most patients had more then one comorbid disease (n = 33; 77%), and the most frequent comorbid disease was chronic heart failure (n = 25; 58%). CONCLUSIONS Autopsy results suggest that common contributing causes of early death in patients hospitalized with severe COPD exacerbation are concomitant complications, as follows: cardiac failure, pneumonia, and PTE. Quality improvement interventions should focus on recognizing and treating these conditions at the time of hospital admission.
Improvement in Survival after Paraquat Ingestion Following Introduction of a New Formulation in Sri Lanka

Background Pesticide ingestion is a common method of self-harm in the rural developing world. In an attempt to reduce the high case fatality seen with the herbicide paraquat, a novel formulation (INTEON) has been developed containing an increased emetic concentration, a purgative, and an alginate that forms a gel under the acid conditions of the stomach, potentially slowing the absorption of paraquat and giving the emetic more time to be effective. We compared the outcome of paraquat self-poisoning with the standard formulation against the new INTEON formulation following its introduction into Sri Lanka. Methods and Findings Clinical data were prospectively collected on 586 patients with paraquat ingestion presenting to nine large hospitals across Sri Lanka with survival to 3 mo as the primary outcome. The identity of the formulation ingested after October 2004 was confirmed by assay of blood or urine samples for a marker compound present in INTEON. The proportion of known survivors increased from 76/297 with the standard formulation to 103/289 with INTEON ingestion, and estimated 3-mo survival improved from 27.1% to 36.7% (difference 9.5%; 95% confidence interval [CI] 2.0%–17.1%; p = 0.002, log rank test). Cox proportional hazards regression analyses showed an approximately 2-fold reduction in toxicity for INTEON compared to standard formulation. A higher proportion of patients ingesting INTEON vomited within 15 min (38% with the original formulation to 55% with INTEON, p < 0.001). Median survival time increased from 2.3 d (95% CI 1.2–3.4 d) with the standard formulation to 6.9 d (95% CI 3.3–10.7 d) with INTEON ingestion (p = 0.002, log rank test); however, in patients who did not survive there was a comparatively smaller increase in median time to death from 0.9 d (interquartile range [IQR] 0.5–3.4) to 1.5 d (IQR 0.5–5.5); p = 0.02. Conclusions The survey has shown that INTEON technology significantly reduces the mortality of patients following paraquat ingestion and increases survival time, most likely by reducing absorption.
Hematological shift in goat kids naturally devoid of prion protein

The physiological role of the cellular prion protein (PrPC) is incompletely understood. The expression of PrPC in hematopoietic stem cells and immune cells suggests a role in the development of these cells, and in PrPC knockout animals altered immune cell proliferation and phagocytic function have been observed. Recently, a spontaneous nonsense mutation at codon 32 in the PRNP gene in goats of the Norwegian Dairy breed was discovered, rendering homozygous animals devoid of PrPC. Here we report hematological and immunological analyses of homozygous goat kids lacking PrPC (PRNPTer/Ter) compared to heterozygous (PRNP+/Ter) and normal (PRNP+/+) kids. Levels of cell surface PrPC and PRNP mRNA in peripheral blood mononuclear cells (PBMCs) correlated well and were very low in PRNPTer/Ter, intermediate in PRNP+/Ter and high in PRNP+/+ kids. The PRNPTer/Ter animals had a shift in blood cell composition with an elevated number of red blood cells (RBCs) and a tendency toward a smaller mean RBC volume (P = 0.08) and an increased number of neutrophils (P = 0.068), all values within the reference ranges. Morphological investigations of blood smears and bone marrow imprints did not reveal irregularities. Studies of relative composition of PBMCs, phagocytic ability of monocytes and T-cell proliferation revealed no significant differences between the genotypes. Our data suggest that PrPC has a role in bone marrow physiology and warrant further studies of PrPC in erythroid and immune cell progenitors as well as differentiated effector cells also under stressful conditions. Altogether, this genetically unmanipulated PrPC-free animal model represents a unique opportunity to unveil the enigmatic physiology and function of PrPC.
FAMILY STRUCTURE AND ACHIEVEMENT MOTIVATION

The relationship of four demographic factors-family size, ordinal position, mother's age, and social class-to the socialization process and their impact upon the development of achievement motivation is examined in a study of two independent samples of young boys and their mothers. The data were obtained by means of a projective test, personal interviews, and group administered questionnaires. An analysis of the data indicates that these demographic variables are relevant to the development of achievement motivation, but their effects are comlplex, intricately interconnected with one another, and difficult to assess individually. THIS paper is a study of the relationship of certain demographic factors to family structure and personality development. Specifically, it examines the ways in which family size, ordinal position, mother's age, and social class influence the quality and quantity of patterned parent-child interaction and their impact upon the development of achievement motivation. Achievement motivation has been defined