Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimized Adaptive Streaming of Multi-video Stream Bundles

In contrast to traditional video, multi-view video streaming allows viewers to interactively switch among multiple perspectives provided by different cameras. One approach to achieve such a service is to encode the video from all of the cameras into a single stream, but this has the disadvantage that only a portion of the received video data will be used, namely that required for the selected view at each point in time. In this paper, we introduce the concept of a “multi-video stream bundle” that consists of multiple parallel video streams that are synchronized in time, each providing the video from a different camera capturing the same event or movie. For delivery we leverage the adaptive features and time-based chunking of HTTP-based adaptive streaming, but now employing adaptation in both content and rate. Users are able to change their viewpoint on-demand and the client player adapts the rate at which data are retrieved from each stream based on the user's current view, the probabilities of switching to other views, and the user's current bandwidth conditions. A crucial component of such a system is the prefetching policy. For this we present an optimization model as well as a simpler heuristic that can balance the playback quality and the probability of playback interruptions. After analytically and numerically characterizing the optimal solution, we present a prototype implementation and sample results. Our prefetching and buffer management solution is shown to provide close to seamless playback switching when there is sufficient bandwidth to prefetch the parallel streams.
`Out of frame'

This article examines interstices in the urban fabric using the example of two urban leftover spaces in Paris. The article first analyzes the institutional mode of treating these spaces, which explains the `framing' of the interstice as a temporary functionless space. It shows how interstices are not only institutionally created and controlled, as opposed to free, but also find a functional place as a temporary margin of maneuver in a process of decay, recycling and renewal enforced by landlords, the police and maintenance teams. Second, the article examines the improvised modes of action developed by diverse people in order to use the interstice. The article looks at what happens in the gaps of urban planning, when activities find a place in the interstice not in order to transform it, and bring it back into the realm of urban places, but to take advantage of its `in-between' position in the city. In practice, such activities are led by individuals who have to be `just passing', because the frame (Goffman, 1974) built by landlords and their agents prevents them from taking place. Under some conditions, `just passing' can give way to another type of involvement described as `out of frame', which in this case, allows a group of homeless people to settle in the interstice for a more durable period of time despite heavy surveillance.
Is the Effect of Education on Voter Turnout Absolute or Relative? A Multi-level Analysis of 37 Countries

While it is well established that education is positively correlated with voter turnout at the individual level, the increased educational levels in most western countries have not caused increased voter turnout at the aggregate level. The relative education model suggests one explanation: education is only a proxy for social status and has no direct causal effect. The individual-level effect of education is conditional on the level of education in the environment. Whereas previous research on the relationship between relative education and voter turnout has largely focused on the U.S. case, this article uses comparative survey data on voter turnout to test the relative education model. It combines data from the CSES and ESS covering about 275,000 individuals in 173 country-years in 37 countries. The analysis applies a definition of relative education operationalized as each individual's education rank position in relation to the level of education of those born in the same five-year cohort in the same country. The results show that relative education has a much larger effect on voter turnout than absolute education. Moreover, relative education has a stronger effect when aggregate turnout is low.
Prison staff and women prisoner's views on self-harm; their implications for service delivery and development: A qualitative study.

BACKGROUND Rates of self-harm are high among women in prison in the UK. This is the first study to compare the views and attitudes of prison staff and women prisoners and to look at the effects of these attitudes on prisoner/staff relationships. AIMS To explore understanding of self-harm among women prisoners, prison officers and health-care staff and how their perceptions might influence service provision and development. METHOD Semi-structured interviews were conducted with women prisoners who self-harm and with staff at a women's prison. Data were analysed thematically. RESULTS Prison officers often attributed motives to self-harm such as 'manipulation' and 'attention-seeking', whereas descriptions by women prisoners, prison governors and health-care staff suggested explanations in affect regulation or self-punishment. CONCLUSIONS Differences between prison officers and other staff working in the prison in their understanding of self-harm by women prisoners may lie in training differences, but there may be other explanations such as self-protection/coping strategies. More training and support for officers may result in improved staff-prisoner relationships and thus, safer service provision.
Functional Capacity of Patients in the Early Period After the Embolization of Cerebrovascular Malformations: Preliminary Findings

ABSTRACT Research into outcomes of endovascular intervention for cerebral blood vessel malformations has previously focused on the clinical picture of the disease, death rate, comparison of surgical methods, and the most common postoperative and postbleeding complications. From the nursing standpoint, the crucial elements in assessing postoperative patients are functional outcome defining patients’ ability to function in life and recognition of impairments in which patients will be dependent on the nursing staff. The aim of the study was to assess functional capacity of patients before and after the embolization of cerebral blood vessel malformations in the aspect of nursing care. The study included 38 patients after embolization of cerebral blood vessels. The assessment of their condition using the Functional Capacity Scale was performed twice: before and after the surgical procedure. The research shows that on the day of admission to hospital, patients had greatest difficulty performing hygienic activities (p < .0001), satisfying physiological needs (p < .0001), and consuming their meals (p < .004). Headache (p < .002) and poor psychological state (p < .0001) manifesting itself through mild depression constituted other serious problems. After the surgery, vast majority of patients were independent in terms of self-care (p ⩽ .03). Headache occurred in the case of 21% of patients, and psychological state improved in 34% of patients, which shows that there is a major demand for care in this sphere.
Meta-analysis of vascular and neoplastic events associated with tamoxifen

OBJECTIVE: Tamoxifen reduces the risk of developing breast cancer but also affects the risks of certain vascular and neoplastic events. Our purpose was to estimate the effects of tamoxifen on potentially life-threatening vascular and neoplastic outcomes.DESIGN: Random effects meta-analysis of published randomized controlled trials.PATIENTS: Participants in all trials in which a treatment arm that included tamoxifen was compared to a similar control arm. Breast cancer risk reduction and treatment trials were included.INTERVENTIONS: Tamoxifen at variable dose and duration.MEASUREMENTS AND MAIN RESULTS: Thirty-two trials (52,929 patients) reported one or more outcomes of interest. Tamoxifen was associated with significantly increased risks of endometrial cancer (relative risk [RR] 2.70; 95% CI, 1.94 to 3.75), gastrointestinal cancers (RR 1.31; 95% CI, 1.01 to 1.69), strokes (RR 1.49; 95% CI, 1.16 to 1.90), and pulmonary emboli (RR 1.88; 95% CI, 1.77 to 3.01). Tamoxifen had no effect on secondary malignancies other than endometrial and gastrointestinal cancers (RR 0.96; 95% CI, 0.81 to 1.13). In contrast, tamoxifen significantly decreased myocardial infarction deaths (RR 0.62; 95% CI, 0.41 to 0.93) and was associated with a statistically insignificant decrease in myocardial infarction incidence (RR 0.90; 95% CI, 0.66 to 1.23). Postmenopausal women had greater risk increases for neoplastic outcomes.CONCLUSIONS: This meta-analysis of randomized trials found tamoxifen use to be significantly associated with several neoplastic and vascular outcomes. Consideration of tamoxifen use requires balance of potential benefits and risks.
Personality Profiles and the “Russian Soul”: Literary and Scholarly Views Evaluated

Many domestic and foreign observers have claimed that Russians have a unique constellation of personality traits that mirrors their distinctive historical and cultural experience. To examine the hypothesized uniqueness of Russian personality, members of the Russian Character and Personality Survey collected data from 39 samples in 33 administrative areas of the Russian Federation. Respondents (N = 7,065) identified an ethnically Russian adult or college-aged man or woman whom they knew well and rated the target using the Russian observer-rating version of the Revised NEO Personality Inventory. The mean personality profile of Russians was very similar to the international average based on 50 different countries, debunking the myth of a unique Russian soul.The small variations from world norms did not converge with depictions of Russian national character in fiction and the scholarly literature. New items intended to capture distinctive, emic aspects of Russian personality provided no new information beyond the familiar Big Five dimensions. Religion, ethnicity, and beliefs about the uniqueness of the Russian character and the malleability of personality traits had little effect on personality ratings. Perceptions of the Russian soul do not seem to be based on the personality traits of Russians.
Effects of Exercise and Ischemia on Mobilization and Functional Activation of Blood-Derived Progenitor Cells in Patients With Ischemic Syndromes: Results of 3 Randomized Studies

Background—Exercise training (ET) has been shown to improve regional perfusion in ischemic syndromes. This might be partially related to a regeneration of diseased endothelium by circulating progenitor cells (CPCs) or CPC-derived vasculogenesis. The aim of the present study was to determine whether ischemic stimuli during ET are required to promote CPC mobilization in patients with cardiovascular diseases. Methods and Results—Patients with peripheral arterial occlusive disease (PAOD) were randomized to 4 weeks of daily ischemic ET or control (group A). Successfully revascularized patients with PAOD were randomized to 4 weeks of daily nonischemic ET or control (group B). Patients with stable coronary artery disease were subjected to 4 weeks of subischemic ET or control (group C). At baseline and after 4 weeks, the number of KDR+/CD34+ CPCs was determined by fluorescence-activated cell sorting analysis. Levels of vascular endothelial growth factor (VEGF) were measured by ELISA. A Matrigel assay was used to quantify CPC integration into vascular structures. Expression of the homing factor CXCR4 was determined by reverse transcription-polymerase chain reaction. In group A only, ischemic ET increased VEGF levels by 310% (P<0.05 versus control) associated with an increase in CPCs by 440% (P<0.05 versus control), increased CXCR4 expression, and enhanced integration of CPCs into endothelial networks. In contrast, subischemic ET in groups B and C increased CXCR4 expression and CPC integration. Conclusions—In training programs, symptomatic tissue ischemia seems to be a prerequisite for CPC mobilization. However, ischemic and subischemic ET programs affect CXCR4 expression of CPCs, which might lead to an improved CPC integration into endothelial networks.
A Practical Method for Quantification of Phosphorus‐ and Glycogen‐Accumulating Organism Populations in Activated Sludge Systems

Enhanced biological phosphorus removal (EBPR) from wastewater relies on the enrichment of activated sludge with phosphorus‐accumulating organisms (PAOs). The presence and proliferation of glycogen‐accumulating organisms (GAOs), which compete for substrate with PAOs, may be detrimental for EBPR systems, leading to deterioration and, in extreme cases, failure of the process. Therefore, from both process evaluation and modeling perspectives, the estimation of PAO and GAO populations in activated sludge systems is a relevant issue. A simple method for the quantification of PAO and GAO population fractions in activated sludge systems is presented in this paper. To develop such a method, the activity observed in anaerobic batch tests executed with different PAO/GAO ratios, by mixing highly enriched PAO and GAO cultures, was studied. Strong correlations between PAO/GAO population ratios and biomass activity were observed (R 2 > 0.97). This served as a basis for the proposal of a simple and practical method to quantify the PAO and GAO populations in activated sludge systems, based on commonly measured and reliable analytical parameters (i.e., mixed liquor suspended solids, acetate, and orthophosphate) without requiring molecular techniques. This method relies on the estimation of the total active biomass population under anaerobic conditions (PAO plus GAO populations), by measuring the maximum acetate uptake rate in the presence of excess acetate. Later, the PAO and GAO populations present in the activated sludge system can be estimated, by taking into account the PAO/GAO ratio calculated on the basis of the anaerobic phosphorus release‐to‐acetate consumed ratio. The proposed method was evaluated using activated sludge from municipal wastewater treatment plants. The results from the quantification performed following the proposed method were compared with direct population estimations carried out with fluorescence in situ hybridization analysis (determining Candidatus Accumulibacter Phosphatis as PAO and Candidatus Competibacter Phosphatis as GAO). The method showed to be potentially suitable to estimate the PAO and GAO populations regarding the total PAO–GAO biomass. It could be used, not only to evaluate the performance of EBPR systems, but also in the calibration of potential activated sludge mathematical models, regarding the PAO–GAO coexistence.
Colonisation by Faecalibacterium prausnitzii and maintenance of clinical remission in patients with ulcerative colitis

Although incrimination of the intestinal microbiota in the pathogenesis of IBD is widely accepted, few data are available about the role of specific bacteria. Potentially, Faecalibacterium prausnitzii, bacteria with anti‐inflammatory properties, might be deficient in ulcerative colitis (UC).
Exogenous human urinary kallidinogenase increases cerebral blood flow in patients with acute ischemic stroke

Objective: To study the effects of human urinary kallidinogenase (HUK) treatment on acute cerebral ischemia (ACI) using magnetic resonance perfusion weighted imaging (MRP) methods. Methods: In a non-randomized controlled clinical trial, 30 patients diagnosed with ACI were enrolled and divided manually into 2 groups. The experimental group, consisting of 18 participants, was treated with HUK (0.15 Perinatal Assessment Unit/day) for 7 consecutive days. The control group was treated with routine medication. The participants underwent MRP examination on the first and fourteenth day after onset. The National Institutes of Health Stroke Scale (NIHSS) score, cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT), and time to peak (TTP) were compared between the groups. Results: After undergoing therapy, the experimental HUK-treated group had lower NIHSS scores than the control group (p<0.05). The CBF improved more in the HUK-treated group than in the control group (p<0.05). Additionally, MTT and TTP were shorter in the HUK-treated group than in the control group (p<0.05). Conclusions: Human urinary kallidinogenase improves CBF and ameliorates neurological deficits. Human urinary kallidinogenase is a safe and effective treatment approach for treating patients with ACI.
Does Excellence have a Gender? A National Research Study on Recruitment and Selection Procedures for Professorial Appointments in the Netherlands

Purpose – The purpose of this research is to show that upward mobility of female academics in regular selection procedures is evolving extremely slowly, especially in The Netherlands. This paper aims at a more profound understanding of professorial recruitment and selection procedures in relation to gender differences at Dutch universities.Design/methodology/approach – This paper explores the recruitment of university professors as a gendered process and is mainly based on the analysis of selection committee reports between 1999‐2003 from six large Dutch universities (n=682). Findings – The research findings give a clear indication of gender differences in selection and recruitment procedures. Although not in all disciplines, the paper observes a disparity in the percentages of male and female applicants who were successful in the selection procedure. There is no confirmation of the predicted relationship with the nature of the procedure (open/closed), but there is a correlation with the number of women on.
Serum Apolipoproteins Are Associated With Systemic and Retinal Microvascular Function in People With Diabetes

Serum apolipoprotein (apo)AI and -B have been shown to be associated with diabetic retinopathy, but the underlying mechanisms are unclear. We investigated whether apoAI and apoB levels are associated with measures of systemic and retinal microvascular function in patients with diabetes. We recruited 224 diabetic patients (85 type 1 and 139 type 2) and assessed serum lipids and lipoproteins from fasting blood, skin responses to sodium nitroprusside (endothelium independent) and acetylcholine (ACh) (endothelium dependent) iontophoresis, flicker-light–induced retinal vasodilatation, and retinal vascular tortuosity. After adjustment for age and sex, every SD increase in apoAI level was associated with ACh-induced skin perfusion (mean change 1.27%; P < 0.001 for apoAI) and flicker-light retinal arteriolar vasodilatation (0.33%; P = 0.003) and was associated inversely with arteriolar tortuosity (−2.83 × 10−5; P = 0.044). Each SD increase in apoB was associated with arteriolar tortuosity only (1.75 × 10−5; P = 0.050). These associations, except for apoB, remained in multivariate models. Serum apoAI was associated with increased vasomotor responsiveness to ACh and flickering light and inversely related to retinal vessel tortuosity—a characteristic that has both structural and functional dimensions. These findings provide additional insights into the potential mechanisms of apos in the pathogenesis of diabetic retinopathy and other diabetic microvascular complications.
Exploring marine ecosystems with elementary school Portuguese children: inquiry-based project activities focused on ‘real-life’ contexts

The purpose of the study was to investigate how young students engage in an inquiry-based project driven by real-life contexts. Elementary school children were engaged in a small inquiry project centred on marine biodiversity and species adaptations. All activities included the exploration of an out-of-school setting as a learning context. A total of 49 students and 2 teachers were involved in the activities. The research methods included observation, document analysis and content analysis of the answers to a questionnaire and an interview. The results revealed that most of the students acquired scientific knowledge related to biological diversity and adaptations to habitat. Moreover, students progressively demonstrate greater autonomy, argumentative ability and decision-making. One implication of the present study is that elementary science curriculum could be better managed with inquiry project-based activities that explore different types of resources and out-of-school settings.
Metabolism of ketone bodies in pregnant sheep

1. A combination of isotope-dilution and arteriovenous-difference techniques was used to determine the significance of ketones to energy homoeostasis in fasted pregnant ewes. 2. There was incomplete interconversion of D(−) 3-hydroxybutyrate (3HB) and acetoacetate (AcAc) and therefore neither entry rate nor oxidation of total ketone bodies could be estimated by assuming circulating ketone bodies represent a single metabolic compartment. Total ketone body metabolism was satisfactorily summarized using a three-compartment model. In fasted pregnant ewes the mean entry rate of total ketones was 1 mmol/h per kg body-weight and of the ketones entering the circulation 87% were promptly oxidized to carbon dioxide accounting for 30% of the total COa production. 3. Ketone bodies are readily utilized by hind-limb skeletal muscle such that if completely oxidized, 18±4 and 48±3% of the oxygen utilized could be accounted for in fed and fasted pregnant ewes respectively. For both 3HB and AcAc there was a hyperbolic relationship between utilization and arterial concentration. The apparent Michaelis constant (Km) values were 0·55 and 1–42 mM respectively and the maximum velocity (Vmax) 2·9 and 5·6 mmol/h per kg muscle. The arterial concentration of AcAc is always below the Km value and this limits the utilization rate. The D(−) 3HB concentration, however, may surpass that required for maximum utilization and ketoacidosis may be a consequence of this. 4. A two-compartment model was used to analyse ketone body metabolism by hind-limb skeletal muscle. The results suggested substantial intercon version and production of AcAc and 3HB. 5. The pregnant uterus utilized 3HB which if completely oxidized accounted for 12±2 (fed) and 25±4 (fasted) % of its O2 consumption. At least 64% of the net 3HB utilized was oxidized. AcAc was not utilized in significant quantities.
Coping with war captivity: The role of sensation seeking

This study examines the implication of both sensation seeking and the subjective appraisal of captivity in the long‐term adjustment of ex‐prisoners of war (ex‐POWs). 164 Israeli ex‐POWs and 184 comparable controls were studied, 18 years after their participation in the Yom Kippur War. The findings indicate that high‐sensation seekers adjusted better than low‐sensation seekers to the stresses of captivity. Low‐sensation‐seeking ex‐POWs reported more PTSD symptoms, more severe psychiatric symptomatology, and more intense intrusive and avoidance tendencies. High‐ and low‐sensation‐seeking POWs differed also in feelings when taken prisoner, subjective assessment of suffering in prison, ways of coping with prison, and emotional states during captivity. The present study supports the postulation that sensation seeking is an important stress‐buffering personal resource. The role of coping styles in long‐term adjustment following war captivity is discussed.