Miracle-dz/UniFAR-FTUs huggingface dataset:
Resolución colaborativa de problemas lógicos en condiciones de simetría y asimetría cognitiva

The article aims to study the verbal collaborative interaction in both symmetrical and asymmetrical dyads according to specific individual cognitive competence. The interaction was analyzed in terms of cognitive and non-cognitive aspects. 19 dyads (38 fifth and sixth graders) participated. First, they individually solve a set of logical problems to determine the initial level of competence. According to the outcomes, symmetric (both subjects of low level of competence) and asymmetric (one subject of low level of competence with one subject of high level of competence) dyads were made up. Second, they collaboratively resolved an equivalent set of problems. The collaborative interaction of the dyads was analyzed by a system of categories of three inclusive levels: (1) if messages were cognitive or non-cognitive; (2) it they were also affirmations, questions or answers; (3) if both cognitive affirmations and answers (both cognitive) were argumentative or nonargumentative. General outcomes showed that the asymmetry of epistemic competence was related to disequilibrium in the amount of messages and cognitive affirmations, especially argumentative, (but not in the rest of categories) in favor of the individual of higher level of competence. On other hand, symmetrical dyads showed equitable interactions related to all categories. A complementary analysis which consisted in an identification of more specific case differences related to modalities of interaction showed specific types of dyads within the general tendencies mentioned.
TEAM INTELLIGENCE: THE FOUNDATIONS OF INTELLIGENT ORGANIZATIONS - A Literature Review

The underlying change driving an increased use of groups and teams for coordination is the increasing specialization, and the number of experts and specialists needing to come together and coordinate. This, in turn, drives complexity, and the only way for organizations to deal with complexity in the long run is by intelligence, that is intelligent coordination. Essential in this intelligent coordination of organizations will be the group level. Teams or micro-systems is the operational unit in which the organization’s need of coordination becomes dependent of the intelligence, behavior, emotional and social skills of individuals. These factors create a variance in collective intelligence. Average collective intelligence at micro-system level is therefore a fairly new way of describing organizational performance. The purpose of this report, which is a literature review, is to give an overview of how collective intelligence at micro-system level has been defined, how it relates to organizational performance, what factors have been identified as causing variance and what types of interventions at team level have been discussed. A total of 92 articles and two dissertations were selected based on a search of EBSCO/Business Source Premier.
The synonymization of Philodice with Syngonanthus (Eriocaulaceae)

Philodice hoffmannseggii and P. cuyabensis , the only species in this genus, are here recognized as a single species and transferred to the genus Syngonanthus as S. cuyabensis . The taxonomic history and morphology of Philodice are reviewed, and infraspecific variation, and affinities within Syngonanthus are discussed.
A predominantly clonal multi-institutional outbreak of Clostridium difficile-associated diarrhea with high morbidity and mortality.

BACKGROUND In March 2003, several hospitals in Quebec, Canada, noted a marked increase in the incidence of Clostridium difficile-associated diarrhea. METHODS In 2004 we conducted a prospective study at 12 Quebec hospitals to determine the incidence of nosocomial C. difficile-associated diarrhea and its complications and a case-control study to identify risk factors for the disease. Isolates of C. difficile were typed by pulsed-field gel electrophoresis and analyzed for binary toxin genes and partial deletions in the toxin A and B repressor gene tcdC. Antimicrobial susceptibility was evaluated in a subgroup of isolates. RESULTS A total of 1703 patients with 1719 episodes of nosocomial C. difficile-associated diarrhea were identified. The incidence was 22.5 per 1000 admissions. The 30-day attributable mortality rate was 6.9 percent. Case patients were more likely than matched controls to have received fluoroquinolones (odds ratio, 3.9; 95 percent confidence interval, 2.3 to 6.6) or cephalosporins (odds ratio, 3.8; 95 percent confidence interval, 2.2 to 6.6). A predominant strain, resistant to fluoroquinolones, was found in 129 of 157 isolates (82.2 percent), and the binary toxin genes and partial deletions in the tcdC gene were present in 132 isolates (84.1 percent). CONCLUSIONS A strain of C. difficile that was resistant to fluoroquinolones and had binary toxin and a partial deletion of the tcdC gene was responsible for this outbreak of C. difficile-associated diarrhea. Exposure to fluoroquinolones or cephalosporins was a risk factor.
Sparse signal recovery with side information

The paper proposes an algorithm for signal recovery with side information. It is assumed that the decoder has a priori knowledge about the sparse source signal in the form of side information, that can be used to estimate positions of significant elements in the source. The proposed iterative algorithm extends the orthogonal matching pursuit (OMP) algorithm used in compressive sampling, and is robust to partially noisy side information. Thus it is suitable for scenarios whereby a correlated source is available at the decoder. We apply the algorithm to spectrum sensing and image acquisition, and show great advantages of the proposed solution, compared to OMP (no side information) in terms of improved performance and reduced execution time.
The Kerr spacetime: A brief introduction

This chapter provides a brief introduction to the Kerr spacetime and rotating black holes, touching on the most common coordinate representations of the spacetime metric and the key features of the geometry -- the presence of horizons and ergospheres. The coverage is by no means complete, and serves chiefly to orient oneself when reading subsequent chapters.
Rural/urban Background, Depression and Suicidal Ideation in Chinese College Students: A Cross-Sectional Study

Objectives The objective of this study was to examine, first, the relationship of having a rural vs. urban background with suicidal ideation in Chinese college students, and second, whether a potential relationship was mediated by depression. Methods A survey was conducted among 1,145 undergraduate students at a university in China. Suicidal ideation and depressive symptoms were measured by the revised Hopkins’ Symptom checklist (SCL-90-R). Associations between rural vs. urban background, depression and suicidal ideation were estimated by multivariable linear regression-based β coefficients, logistic regression-based odds ratios (ORs), and corresponding 95% confidence intervals (CIs). The magnitude of indirect effect and bias-corrected 95% CIs were obtained through bootstrap techniques. Results Rural background was positively associated with depression, which was in turn associated with suicidal ideation. The OR for rural status and suicidal ideation equaled 2.15 (95% CI = 1.36–3.41). This OR was slightly, though significantly (p<0.05) attenuated by additional adjustment for depressive symptoms (OR = 1.99, 95% CI = 1.15–3.44). Conclusion Having a rural background is a determinant of suicidal ideation in Chinese college students. Depression may only marginally mediate this association.
NICMOS and VLA Observations of the Gravitationally Lensed Ultraluminous BAL Quasar APM 08279+5255: Detection of a Third Image

We present a suite of observations of the recently identified ultraluminous BAL quasar APM 08279+5255, taken both in the infrared with the NICMOS high-resolution camera on board the Hubble Space Telescope and at 3.5 cm with the Very Large Array. With an inferred luminosity of ∼5 × 1015 L⊙, APM 08279+5255 is apparently the most luminous system known. Extant ground-based images show that APM 08279+5255 is not pointlike, but is instead separated into two components, indicative of gravitational lensing. The much higher resolution images presented here also reveal two point sources, A and B, of almost equal brightness (fB/fA = 0.782 ± 0.010), separated by 0. ″378 ± 0. ″001, as well as a third, previously unknown, fainter image, C, seen between the brighter images. While the nature of C is not fully determined, several lines of evidence point to it being a third gravitationally lensed image of the quasar, rather than being the lensing galaxy. Simple models that recover the relative image configuration and brightnesses are presented. While proving to be substantially amplified, APM 08279+5255 possesses an intrinsic bolometric luminosity of ∼1014 → 1015 L⊙ and remains amongst the most luminous objects known.
Outflows in Infrared-Luminous Starbursts at z < 0.5. I. Sample, Na I D Spectra, and Profile Fitting

We have conducted a spectroscopic survey of 78 starbursting infrared-luminous galaxies at redshifts up to z = 0.5. We use moderate-resolution spectroscopy of the Na I D interstellar absorption feature to directly probe the neutral phase of outflowing gas in these galaxies. Over half of our sample are ultraluminous infrared galaxies that are classified as starbursts; the rest have infrared luminosities in the range log(LIR/L☉) = 10.2-12.0. The sample selection, observations, and data reduction are described here. The absorption-line spectra of each galaxy are presented. We also discuss the theory behind absorption-line fitting in the case of a partially covered, blended absorption doublet observed at moderate-to-high resolution, a topic neglected in the literature. A detailed analysis of these data is presented in a companion paper.
A robust traffic parameter extraction method using texture and entropy

This paper presents a robust traffic parameters extraction (RTPE) method for intelligent traffic system. Firstly a texture-based algorithm is introduced to solve the moving shadow problem, which occurs in traffic lane commonly. Secondly, we propose a robust exponential entropy-based and data-dependent threshold vehicle detection algorithm, named RVD-EXEN algorithm to extract vehicle's feature from raw visual information for vehicle detection. On this basis, we calculate some basic traffic parameters such as traffic flow, time occupancy ratio and space mean speed. The experiments show that proposed RTPE method has the flexibility to shadow situation, robustness to noise and efficiency of computation.
Interrelations of Growth in Letter Naming and Sound Fluency in Kindergarten and Implications for Subsequent Reading Fluency

Abstract Although letter naming fluency (LNF) and letter sound fluency (LSF) measures are widely available to educators for assessing early literacy skills of kindergarten children, better understanding of the contributions of these skills to reading development can help improve the interpretation of LNF and LSF data for instructional decisions. This study investigated the interrelations of growth in LNF and LSF across the kindergarten year and their unique roles in predicting later reading fluency. Piecewise parallel-process growth models indicated that although LNF and LSF were highly correlated at kindergarten entry, fall LNF status was positively predictive of LSF growth across the fall. Bidirectional effects were present, as initial LSF was also a positive predictor of LNF growth across the fall; however, its effects were not as strong as those of initial LNF on LSF growth. More importantly, both initial status and growth in LNF and LSF were uniquely predictive of first-grade reading fluency, indicating the independent effects of each on subsequent text reading skills. Indirect effects were also observed for kindergarten LNF and LSF growth on reading fluency in second and third grades. Implications for kindergarten assessment and instruction are discussed.
Basic Emotions

determining not only that they pertain to emotion, but to which emotion . Appraisal is not always automatic. Sometimes the evaluation of what is happening is slow, deliberate and conscious. With such a more extended appraisal there may be some autonomic arousal, but perhaps not of a kind which is differentiated. The person could be said to be aroused or alerted, but no specific emotion is operative. Cognition plays the important role in determining what will transpire. During such extended appraisal the evaluation may match to the selective filters of the automatic appraiser . It need not be, however; the experience may be diffuse rather than specific to one emotion” (pp. 58—59).
Brain tissue oxygen and outcome after severe traumatic brain injury: A systematic review*

Objective:In this study, available medical literature were reviewed to determine whether brain hypoxia as measured by brain tissue oxygen (Bto2) levels is associated with increased risk of poor outcome after traumatic brain injury (TBI). A secondary objective was to examine the safety profile of a direct BtO2 probe. Data Source and Extraction:Clinical studies published between 1993 and 2008 were identified from electronic databases, Index Medicus, bibliographies of pertinent articles, and expert consultation. The following inclusion criteria were applied for outcome analysis: 1) more than 10 patients described, 2) use of a direct Bto2 monitor, 3) brain hypoxia defined as Bto2 <10 mm Hg for >15 or 30 minutes, 4) 6-month outcome data, and 5) clear reporting of patient outcome associated with Bto2. For the analysis, each selected article had to have adequate data to determine odds ratios (ORs) and confidence intervals (CIs). Thirteen studies met the initial inclusion criteria and three were included in the final outcome analysis. Safety data were abstracted from any report where it was mentioned. Data Synthesis:The three studies included 150 evaluable patients with severe TBI (Glasgow Coma Scale ≤8). Brain hypoxia was identified in 71 (47%) of these patients. Among the patients with brain hypoxia, 52 (73%) had unfavorable outcome including 39 (55%) who died. In the absence of brain hypoxia, 34 (43%) patients had an unfavorable outcome, including 17 (22%) who died. Overall brain hypoxia (Bto2 <10 mm Hg >15 minutes) was associated with worse outcome (OR 4.0; 95% CI 1.9–8.2) and increased mortality (OR 4.6; 95% CI 2.2–9.6). We reviewed published safety data; in 292 patients monitored with a Bto2 probe, only two adverse events were reported. Conclusion:Summary results indicate that brain hypoxia (<10 mm Hg) is associated with worse outcome after severe TBI and that Bto2 probes are safe. These results imply that treating patients to increase Bto2 may improve outcome after severe TBI. This question will require further study.
Area Studies after Poststructuralism

In this paper we address the question of ‘what next after poststructuralism’ through a reassessment of area studies. In a narrative of our own involvement with place-oriented research and institutions, we examine the traditional position of area studies in geography and anthropology and its reevaluation by poststructuralist scholars in a number of disciplines. We argue that both prestructuralist and poststructuralist treatments of areas are oriented by a narrative of capitalist development; at the same time, we recognize that traditional area studies has a deep interest in noncapitalist economic practices and relations. It is therefore a resource for those of us who want to create a discourse of economic diversity as a contribution to a politics of economic innovation. The latter half of the paper presents an extended example of reading for economic difference drawn from fieldwork in the oil-palm sector in Papua New Guinea. We conclude with a ‘post-poststructuralist’ reflection on geographic field research. From our evolving perspective, the fieldwork practices that are the principal research methods of area studies constitute a relatively untheorized form of academic politics, creating differences in thought (and thus in the world) via new interpenetrations of concepts and ‘matter’.
Placement type matters: Placement experiences in relation to justice system involvement among child welfare-involved youth and young adults

ABSTRACT Out-of-home placement in the child welfare system is related to justice system involvement. Yet, few studies address the similarities and differences of child welfare placement types in relation to justice system involvement within the same sample of youth, which can provide a more nuanced understanding of the relationship between the two. Utilizing a sample of child welfare youth with substantial out-of-home placements (N = 794), we investigate trajectory group experiences on each of three child welfare placement types, and cross-tabulate each with justice system trajectory groups to examine subgroups. The five-group model fits best for foster homes and group homes; four groups for residential facilities. Relationships between justice system groups and placement types were significant. Youth with chronic justice system involvement had more experiences in group homes and residential facilities; youth with less justice system contact tended to have foster home experiences. Implications for policy and practice are presented.
Molecular gene signature and prognosis of non-small cell lung cancer

The current staging system for non–small cell lung cancer (NSCLC) is inadequate for predicting outcome. Risk score, a linear combination of the values for the expression of each gene multiplied by a weighting value which was estimated from univariate Cox proportional hazard regression, can be useful. The aim of this study is to analyze survival-related genes with TaqMan Low-Density Array (TLDA) and risk score to explore gene-signature in lung cancer. A total of 96 NSCLC specimens were collected and randomly assigned to a training (n = 48) or a testing cohort (n = 48). A panel of 219 survival-associated genes from published studies were used to develop a 6-gene risk score. The risk score was used to classify patients into high or low-risk signature and survival analysis was performed. Cox models were used to evaluate independent prognostic factors. A 6-gene signature including ABCC4, ADRBK2, KLHL23, PDS5A, UHRF1 and ZNF551 was identified. The risk score in both training (HR = 3.14, 95% CI: 1.14–8.67, p = 0.03) and testing cohorts (HR = 5.42, 95% CI: 1.56–18.84, p = 0.01) was the independent prognostic factor. In merged public datasets including GSE50081, GSE30219, GSE31210, GSE19188, GSE37745, GSE3141 and GSE31908, the risk score (HR = 1.50, 95% CI: 1.25–1.80, p < 0.0001) was also the independent prognostic factor. The risk score generated from expression of a small number of genes did perform well in predicting overall survival and may be useful in routine clinical practice.
Inhibition of Return after Color Singletons

Inhibition of return (IOR) is the faster selection of hitherto unattended than previously attended positions. Some previous studies failed to find evidence for IOR after attention capture by color singletons. Others, however, did report IOR effects after color singletons. The current study examines the role of cue relevance for obtaining IOR effects. By using a potentially more sensitive method – saccadic IOR – we tested and found IOR after relevant color singleton cues that required an attention shift (Experiment 1). In contrast, irrelevant color singletons failed to produce reliable IOR effects in Experiment 2. Also, Experiment 2 rules out an alternative explanation of our IOR findings in terms of masking. We discuss our results in light of pertaining theories of IOR.
Radiographic Comparison of Four Anterior Fusion Methods in Two Level Cervical Disc Diseases : Autograft Plate Fixation versus Cage Plate Fixation versus Stand-Alone Cage Fusion versus Corpectomy and Plate Fixation

Objective To evaluate radiographic results of anterior fusion methods in two-level cervical disc disease : tricortical autograft and plate fixation (ACDF-AP), cage and plate fixation (ACDF-CP), stand-alone cage (ACDF-CA), and corpectomy and plate fixation (ACCF). Methods The numbers of patients were 70 with a minimum 6 month follow-up (ACDF-AP : 12, ACDF-CP : 27, ACDF-CA : 15, and ACCF : 16). Dynamic simple X-ray and computed tomography were evaluated preoperatively, postoperatively, 6 month, and at the final follow-up. The fusion and subsidence rates at the final were determined, and global cervical lordosis (GCL), cervical range of motion, fused segment angle (FSA), and fused segment height (FSH) were analyzed. Results Nonunion was observed in 4 (25%) patients with ACDF-CA, 1 (8%) patient with ACDF-AP, 1 (4%) patient with ACDF-CP. The number of loss of FSH (%) more than 3 mm were 2 patients (16%) in ACDF-AP, 3 patients (11%) in ACDF-CP, 5 patients (33%) in ACDF-CA, and 3 patients (20%) in ACCF. The GCL was decreased with ACDF-CA and increased with others. The FSA was increased with ACDF-AP, ACDF-CP, and ACCF, but ACDF-CA was decreased. At the final follow-up, the FSH was slightly decreased in ACDF-CP, ACDF-AP, and ACCF, but ACDF-CA was more decreased. Graft related complication were minimal. Screw loosening, plate fracture, cage subsidence and migration were not identified. Conclusion ACDF-CP demonstrated a higher fusion rate and less minimal FSH loss than the other fusions in two-level cervical disc disease. The ACDF-AP and ACCF methods had a better outcome than the ACDF-CA with respect to GCL, FSA, and FSH.
Normal regional brain iron concentration in restless legs syndrome measured by MRI

Using a T2* gradient echo magnetic resonance imaging (MRI) sequence, regional T2 signal intensity (SI) values, a surrogate marker for T2 values, were determined in 12 regions of interest (substantia nigra, pallidum, caudate head, thalamus, occipital white matter, and frontal white matter bilaterally) and in two reference regions (cerebrospinal fluid and bone) in 12 patients suffering from moderate to severe idiopathic restless legs syndrome (RLS; mean age 58.5 ± 8.7 years) for 12.1 ± 9.1 years and in 12 healthy control subjects (mean age 56.8 ± 10.6 years). Iron deposits shorten T2 relaxation times on T2-weighted MRI. We used regional T2* SI to estimate regional T2-values. A T2-change ratio was calculated for each region of interest relative to the reference regions. We did not find significant differences in any of the investigated brain regions. In addition, serum measures involved in iron metabolism did not correlate with T2 SI values. We could not replicate earlier findings describing reduced regional brain iron concentrations in patients with RLS. Our results do not support the view of substantially impaired regional brain iron in RLS.
Multipath Channel Models for Wireless Local and Metropolitan Area Networks

Wideband mobile radio channel characteristics were measured in various environments in Korea. SKT conducted impulse response measurements at 2.3 GHz with a commercial channel sounder and presents multipath channel models for wireless local and metropolitan area networks. In this paper, we describe the process to analyze the measured data and build tapped delay line channel models. The whole measurements were conducted throughout more than 25 sites around Seoul city and various channel models that represents rural, suburban, suburban alternative, micro-cell hilly, urban high-rise and urban rooftop environments are presented