Miracle-dz/UniFAR-FTUs huggingface dataset:
OnionNet: Sharing Features in Cascaded Deep Classifiers

The focus of our work is speeding up evaluation of deep neural networks in retrieval scenarios, where conventional architectures may spend too much time on negative examples. We propose to replace a monolithic network with our novel cascade of feature-sharing deep classifiers, called OnionNet, where subsequent stages may add both new layers as well as new feature channels to the previous ones. Importantly, intermediate feature maps are shared among classifiers, preventing them from the necessity of being recomputed. To accomplish this, the model is trained end-to-end in a principled way under a joint loss. We validate our approach in theory and on a synthetic benchmark. As a result demonstrated in three applications (patch matching, object detection, and image retrieval), our cascade can operate significantly faster than both monolithic networks and traditional cascades without sharing at the cost of marginal decrease in precision.
Personality Traits, Motivation and Foreign Language Attainment

This paper reports on the results of a study of Chinese EFL learners’ personality traits and motivation in relation to their contributions to achievement in English at the tertiary level. An 88-item survey involving 934 first-year undergraduate non-English majors revealed that: (1) the participants were generally moderately extroverted, moderately prone to become anxious and be influenced by social desirability. Nevertheless, the majority reported to be dependent and tender-minded; (2) the majority of the participants reported to be moderately motivated to learn English; (3) the personality traits were significantly related to all or many of the motivation measures; and (4) most of the personality and motivation scales were significantly correlated with the students’ attainment in English, among which, language requirement, intrinsic motivation, psychoticism and lie were good predictors of the latter.
Cultural Literacy: A Concurrent Validation

E. D. Hirsch's (1987) book Cultural Literacy has raised much interest and controversy over the construct of cultural literacy. It is the purpose of this investigation to evaluate the reliability and the validity of the Cultural Literacy Test. The test was administered to 150 college students. A split-half reliability coefficient of . 93 was obtained. The test scores yielded a correlation of . 59 with the Verbal SAT and . 31 with grades in freshman English. No statistically significant correlation was obtained between scores and GPA. The Cultural Literacy Test did differentiate between the ability levels of freshman English. It was concluded that the reliability and validity of the construct and test of cultural literacy is supported.
Predictors of Pro-Environmental Behaviors of American and Korean Students

This study employs the theory of reasoned action and protection motivation theory to predict American and Korean students’ intentions to engage in behaviors that can help mitigate climate change. The results indicate that one’s attitudes toward the prevention of climate change, perceived severity of climate change, response efficacy, and self-efficacy regarding climate change prevention were significant predictors of one’s intentions to engage in a series of pro-environmental behaviors. In addition, there were few cross-cultural differences. These results suggest that protection motivation theory, together with the theory of reasoned action, is a useful framework for understanding pro-environmental behaviors.
An ICA Mixture Hidden Markov Model for Video Content Analysis

In this paper, a new theoretical framework based on hidden Markov model (HMM) and independent component analysis (ICA) mixture model is presented for content analysis of video, namely ICAMHMM. Unlike the Gaussian mixture observation model commonly used in conventional HMM applications, the observations in the new ICAMHMM are modeled as a mixture of non-Gaussian components. Each non-Gaussian component is formulated by an ICA mixture, reflecting the independence of different components across video frames. In addition, to construct a compact feature space to represent a video frame, ICA is applied on video frames and the ICA coefficients are used to form a compact 2-D feature subspace that makes the subsequent modeling computationally efficient. The model parameters can be identified using supervised learning by the training sequences. The new re-estimation learning formulae of iterative ICAMHMM parameter estimation are derived based on a maximum likelihood function. Employing the identified model, maximum likelihood algorithms are developed to detect and recognize video events. As a case study, golf video sequences are used to test the effectiveness of the proposed algorithm. Experimental results show that the presented method can effectively detect and recognize the recurrent event patterns in video data. The presented new ICAMHMM is generic and can be applied to sequential data analysis in other applications.
Dislocation rate after conversion from hip hemiarthroplasty to total hip arthroplasty.

BACKGROUND Revision hip arthroplasty is associated with a dislocation rate that is three to five times greater than the rate following primary hip replacement. Conversion of a hip hemiarthroplasty to a total hip replacement is a revision arthroplasty, but it differs from revisions of total hip arthroplasties because a native acetabulum is replaced and the subsequent prosthetic femoral head is smaller. It was our purpose to determine whether the risk of dislocation following conversion surgery is the same as or greater than that following revision total hip replacement. METHODS From 1994 to 2005, eighty-nine hemiarthroplasties were converted to a total hip arthroplasty in seventy-seven patients, and the results were compared with those of 115 first-time revision total hip replacements following a primary total hip replacement in 111 patients. A retrospective chart review was performed, and radiographic measurements were obtained. The patient demographics were similar between the two groups. The percentages of patients who had undergone revision of only the acetabular component as compared with both components as well as the percentages of those who had received a modular femoral stem as compared with a nonmodular stem were also similar between the two groups. RESULTS Postoperatively, the femoral head size and the positioning of the acetabular component were similar between the two groups. The acetabular components were significantly larger (p < 0.001) in the group in which a total hip arthroplasty had been revised because they required additional acetabular reaming for placement of a new component. There were significantly more dislocations after the conversion procedures (22%) than after the revisions of the total hip arthroplasties (10%) (p < 0.018). Within both groups, the size of the acetabular component, the intraoperative range of motion, and the positioning of the acetabular component were similar between the hips that dislocated and those that did not. However, smaller femoral head components were at greater risk for dislocation after conversion surgery than after revision of a total hip arthroplasty. CONCLUSIONS A substantial reduction of the size of the prosthetic femoral head is unique to conversion arthroplasty and appears to play a role in instability after the revision surgery. While the smallest heads dislocated in the conversion group, a larger femoral head did not ensure stability. The increased dislocation risk with conversion surgery requires emphasis on soft-tissue balance and avoidance of excessive downsizing of the femoral head in an attempt to maximize hip stability.
[Effects of Tongnao Huoluo acupuncture therapy on Caspase-3 and Bcl-2 of rats with acute cerebral infarction].

OBJECTIVE To evaluate effects of Tongnao Huoluo acupuncture therapy (THAT) on Bcl-2 and Caspase-3 rats with acute cerebral infarction (ACI). METHODS Totally 264 SD rats were randomly divided into 5 groups, i.e. the THAT group (n =72), the thrombolysis group (n =72), the body acupuncture group (n =72), the ischemia control group (n =24), and the sham-operation group (n =24). Successfully modeled rats were recruited in all groups except the sham-operation group. Rats in the THAT group, the thrombolysis group, and the body acupuncture group were divided into 3 subgroups according to the disease occurrence time, i.e., < or = 1.5 h THAT group, 1.5+ -2 h THAT group, and 2+ -3 h THAT group. The neuroethological scores were assessed at 6, 24, and 72 h after treatment. The expressions of Bcl-2 and Caspase-3 were detected using immunohistochemical staining at 24 and 72 h respectively. RESULTS In aspect of improving scores of neurological functions: At 6 h after treatment within 2 h after the disease occurrence, the neuroethological scores were lowered more obviously in the thrombolysis group than in the THAT group (P <0.05). There was statistical difference at 24 and 72 h within 2 - 3 h after the,disease occurrence between the THAT group and the thrombolysis group (P <0.05). Compared with before treatment, there was statistical difference at 24 and 72 h within 3 h after the disease occurrence (P <0. 05, P <0.01). In aspect of lowering the expression of Caspase-3 and elevating the expression of Bcl-2: There was statistical difference in lowering the expression of Caspase-3 and elevating the expression of Bcl-2 between the THAT group and the thrombolysis group at 72 h within 2 -3 after the disease occurrence (P <0.05, P < 0.01). CONCLUSION THAT showed favorable effects in lowering neuroethological scores, lowering expression of Caspase-3, and elevating the expression of Bcl-2 of ACI rats.
Internal and external influences on women’s and men’s entry into management

The study examined the influence of individual (internal) and situational (external) factors on the career advancement of women and men (N = 88) in a Swedish nation‐wide organization. Using, among other methods, LISREL path analyses, the results revealed that the internal factor of instrumental qualities was the major predictor of managerial advancement regardless of gender. Thus, the findings imply that the norms for managers are still quite traditional, leading both women and men to adopt an instrumental managerial style. Contrary to expectations, the impact of the external factor was not indicative of managerial aspirations or managerial group membership (attending a managerial program provided by the organization). However, women in both groups suffered more from work/family pressure than men in both groups. The results are discussed in terms of the contemporary view that there might be a shift in the definition of the managerial role in favor of women.
Cognitive workload modulation through degraded visual stimuli: a single-trial EEG study

Objective. Our experiments explored the effect of visual stimuli degradation on cognitive workload. Approach. We investigated the subjective assessment, event-related potentials (ERPs) as well as electroencephalogram (EEG) as measures of cognitive workload. Main results. These experiments confirm that degradation of visual stimuli increases cognitive workload as assessed by subjective NASA task load index and confirmed by the observed P300 amplitude attenuation. Furthermore, the single-trial multi-level classification using features extracted from ERPs and EEG is found to be promising. Specifically, the adopted single-trial oscillatory EEG/ERP detection method achieved an average accuracy of 85% for discriminating 4 workload levels. Additionally, we found from the spatial patterns obtained from EEG signals that the frontal parts carry information that can be used for differentiating workload levels. Significance. Our results show that visual stimuli can modulate cognitive workload, and the modulation can be measured by the single trial EEG/ERP detection method.
Household Transmission of Vibrio cholerae in Bangladesh

Background Vibrio cholerae infections cluster in households. This study's objective was to quantify the relative contribution of direct, within-household exposure (for example, via contamination of household food, water, or surfaces) to endemic cholera transmission. Quantifying the relative contribution of direct exposure is important for planning effective prevention and control measures. Methodology/Principal Findings Symptom histories and multiple blood and fecal specimens were prospectively collected from household members of hospital-ascertained cholera cases in Bangladesh from 2001–2006. We estimated the probabilities of cholera transmission through 1) direct exposure within the household and 2) contact with community-based sources of infection. The natural history of cholera infection and covariate effects on transmission were considered. Significant direct transmission (p-value<0.0001) occurred among 1414 members of 364 households. Fecal shedding of O1 El Tor Ogawa was associated with a 4.9% (95% confidence interval: 0.9%–22.8%) risk of infection among household contacts through direct exposure during an 11-day infectious period (mean length). The estimated 11-day risk of O1 El Tor Ogawa infection through exposure to community-based sources was 2.5% (0.8%–8.0%). The corresponding estimated risks for O1 El Tor Inaba and O139 infection were 3.7% (0.7%–16.6%) and 8.2% (2.1%–27.1%) through direct exposure, and 3.4% (1.7%–6.7%) and 2.0% (0.5%–7.3%) through community-based exposure. Children under 5 years-old were at elevated risk of infection. Limitations of the study may have led to an underestimation of the true risk of cholera infection. For instance, available covariate data may have incompletely characterized levels of pre-existing immunity to cholera infection. Transmission via direct exposure occurring outside of the household was not considered. Conclusions Direct exposure contributes substantially to endemic transmission of symptomatic cholera in an urban setting. We provide the first estimate of the transmissibility of endemic cholera within prospectively-followed members of households. The role of direct transmission must be considered when planning cholera control activities.
The extent and genetic basis of phenotypic divergence in life history traits in Mimulus guttatus

Differential natural selection acting on populations in contrasting environments often results in adaptive divergence in multivariate phenotypes. Multivariate trait divergence across populations could be caused by selection on pleiotropic alleles or through many independent loci with trait‐specific effects. Here, we assess patterns of association between a suite of traits contributing to life history divergence in the common monkey flower, Mimulus guttatus, and examine the genetic architecture underlying these correlations. A common garden survey of 74 populations representing annual and perennial strategies from across the native range revealed strong correlations between vegetative and reproductive traits. To determine whether these multitrait patterns arise from pleiotropic or independent loci, we mapped QTLs using an approach combining high‐throughput sequencing with bulk segregant analysis on a cross between populations with divergent life histories. We find extensive pleiotropy for QTLs related to flowering time and stolon production, a key feature of the perennial strategy. Candidate genes related to axillary meristem development colocalize with the QTLs in a manner consistent with either pleiotropic or independent QTL effects. Further, these results are analogous to previous work showing pleiotropy‐mediated genetic correlations within a single population of M. guttatus experiencing heterogeneous selection. Our findings of strong multivariate trait associations and pleiotropic QTLs suggest that patterns of genetic variation may determine the trajectory of adaptive divergence.
The end of the post-colonial state in Africa? Reflections on changing African political dynamics

Examination of the political trajectory of African states since the terminal colonial period suggests that, by the 1990s, the 'post-colonial' label still widely employed was losing its pertinence. The term acquired widespread currency not long after independence in acknowledgment of the importation into new states of the practices, routines and mentalities of the colonial state. These served as a platform for a more ambitious form of political monopoly, whose legitimating discourse was developmentalism. The colonial state legacy decanted into a patrimonial autocracy which decayed into crisis by the 1980s, bringing external and internal pressures for economic and political state reconfiguration. But the serious erosion of the stateness of many African polities by the 1990s limited the scope for effective reform and opened the door for a complex web of novel civil conflicts; there was also a renewed saliency of informal politics, as local societies adapted to diminished state presence and service provision. Perhaps the post-colonial moment has passed. AT THE MOMENT OF THE GRAND ENTRY OF AFRICAN STATES into the world consort of nations in 1960 (17 out of 53 achieved sovereignty that year), the primary discursive referent for the new polities was 'post-independent'. From an African nationalist perspective, widely shared in the academic community, the achievement of independence was a defining historical moment, the culmination of an epic struggle. Incorporating visions of liberation, transformation and uplift, the independent African state was a newborn polity. As 'new states', African polities appeared to shed the colonial chrysalis. By subtle metamorphosis, over time the routine descriptor for African states became 'post-colonial'. This semantic shift was not innocent of meaning. Formal sovereignty and anti-colonial struggle gradually became less salient as defining attributes than the colonial origins of the African state; more crucially the wholesale importation of the routines, practices, Crawford Young is Professor Emeritus of Political Science at the University of WisconsinMadison. An early version of this paper served as a keynote address for a conference on 'Beyond the Post-Colonial State in Central Africa? ' organized by the Centre of African Studies of the University of Copenhagen in December 2001.
International perspectives on student awareness, experiences and perceptions of research: implications for academic developers in implementing research‐based teaching and learning

This paper explores the implications of the effective integration of research, teaching and learning for academic development through the lens of an international multi‐institutional comparison of student perceptions of research and its impact on their learning environment. The study, with a sample of over 500 final‐year undergraduate students across three institutions in the UK and Canada, represents a spectrum of research and teaching intensive universities and is one of the largest exploring undergraduate student perceptions of research in the linking teaching and research literature. The results indicate a complex relationship between student perceptions and experiences of research and the type of institution, as well as the individual, institutional and national context. They also inform the discussion of particular issues that academic developers face and the strategies they use to improve the integration of research and teaching to benefit the undergraduate learning experience in their institution. Cet article explore les implications, pour le développement pédagogique, de l’intégration effective de la recherche, de l’enseignement et de l’apprentissage à l’aide de la lentille d’une comparaison internationale multi institutionnelle des perceptions étudiantes à l’égard de la recherche et de leur impact sur l’environnement d’apprentissage. L’étude, reposant sur un échantillon de plus de 500 étudiants en dernière année de 1er cycle, provenant de trois institutions au Royaume‐Uni et au Canada, représente un spectre d’universités centrées sur l’enseignement ou sur la recherche. L’étude constitue une des recherches les plus importantes au sujet des perceptions étudiantes à l’égard de la recherche dans la littérature portant sur le lien entre l’enseignement et la recherche. Les résultats indiquent une relation complexe entre les perceptions et les expériences des étudiants, et le type d’institution, de même qu’avec les contextes individuel, institutionnel et national. Les résultats contribuent aussi à la discussion de questions particulières auxquelles les conseillers pédagogiques font face ainsi que les stratégies que ceux‐ci utilisent en vue d’améliorer l’intégration de la recherche et de l’enseignement de façon à en faire bénéficier l’expérience d’apprentissage au 1er cycle au sein de leur institution.
Dissipativity Theory for Switched Systems

A frame work of dissipativity theory for switched systems using multiple storage functions and multiple supply rates is set up. The exchange of "energy" between the activated subsystem and an inactivated subsystem is characterized by cross supply rates. Stability is reached when all supply rates are non-positive, as long as the total exchanged energy between the activated subsystem and any inactivated subsystems is finite. Passivity and L2-gain are addressed. For both cases, asymptotic stability is guaranteed under certain "negative" output feedback. Feedback invariance of passivity and a small-gain theorem are also given.
‘And Roma were victims, too.’ The Romani genocide and Holocaust education in Romania

While Holocaust education has been mandatory in Romanian schools for over a decade, educators do not necessarily teach about it. Distortion and obfuscation of Romanian Holocaust crimes during the communist and transition periods means that teachers, like the majority of Romanians, know little about their country’s perpetration of genocides. From 1941 to 1944, the Romanian regime transported part of its Jewish and Romani populations to death camps in Transnistria, where over 200,000 Jews and over 10,000 Roma were killed. Under communism, blame for genocides was placed solely on Nazi Germany, thereby absolving Romanian perpetrators. Post-communism, the official narrative has slowly come under scrutiny, allowing for a restructuring of World War II history to incorporate the deportations and deaths of the country’s Jews and Roma. Ignorance about the Holocaust and prejudice about the minorities affected are at the root of non-compliance in teaching. This is especially the case for the Roma, who are the largest minority in Romania and face continued marginalization and discrimination. In this paper, I focus on cognitive barriers that many history and civics teachers have regarding teaching about the victimization of the Roma minority. These barriers are intrinsically tied to acceptance of new narratives of the Holocaust and reconfigurations of ethnic identities in post-socialist Romania where pressures from the European Union and the USA, among others, have pushed for critical examination of past atrocities in order to strengthen democratic processes.