Miracle-dz/UniFAR-FTUs huggingface dataset:
First XMM-Newton observations of strongly magnetic cataclysmic variables I: spectral studies of DP Leo and WW Hor

XMM-Newton was used to observe two eclipsing, magnetic cataclysmic variables, DP Leo and WW Hor, continuously for three orbital cycles each. Both systems were in an intermediate state of accretion. For WW Hor we also obtained optical light curves with the XMM-Newton Optical Monitor and from ground-based observations. Our analysis of the X-ray and optical light curves allows us to constrain physical and geometrical parameters of the accretion regions and derive orbital parameters and eclipse ephemerides of the systems. For WW Hor we directly measure horizontal and vertical temperature variations in the accretion column. From comparisons with previous observations we find that changes in the accretion spot longitude are correlated with the accretion rate. For DP Leo the shape of the hard X-ray light curve is not as expected for optically thin emission, showing the importance of optical depth effects in the post-shock region. We find that the spin period of the white dwarf is slightly shorter than the orbital period and that the orbital period is decreasing faster than expected for energy loss by gravitational radiation alone.
Species-specific separation of lake plankton reveals divergent food assimilation patterns in rotifers

1. The analysis of functional groups with a resolution to the individual species level is a basic requirement to better understand complex interactions in aquatic food webs. Species-specific stable isotope analyses are currently applied to analyse the trophic role of large zooplankton or fish species, but technical constraints complicate their application to smaller-sized plankton. 2. We investigated rotifer food assimilation during a short-term microzooplankton bloom in the East African soda lake Nakuru by developing a method for species-specific sampling of rotifers. 3. The two dominant rotifers, Brachionus plicatilis and Brachionus dimidiatus, were separated to single-species samples (purity >95%) and significantly differed in their isotopic values (4.1‰ in δ13C and 1.5‰ in δ15N). Bayesian mixing models indicated that isotopic differences were caused by different assimilation of filamentous cyanobacteria and particles <2 μm and underlined the importance of species-specific sampling of smaller plankton compartments. 4. A main difference was that the filamentous cyanobacterium Arthrospira fusiformis, which frequently forms blooms in African soda lakes, was an important food source for the larger-sized B. plicatilis (48%), whereas it was hardly ingested by B. dimidiatus. Overall, A. fusiformis was, relative to its biomass, assimilated to small extents, demonstrating a high grazing resistance of this species. 5. In combination with high population densities, these results demonstrate a strong potential of rotifer blooms to shape phytoplankton communities and are the first in situ demonstration of a quantitatively important direct trophic link between rotifers and filamentous cyanobacteria.
Biomarkers: Mining the Biofluid Proteome*

Proteomics has brought with it the hope of identifying novel biomarkers for diseases such as cancer. This hope is built on the ability of proteomic technologies, such as mass spectrometry (MS), to identify hundreds of proteins in complex biofluids such as plasma and serum. There are many factors that make this research very challenging beginning with the lack of standardization of sample collection and continuing through the entire analytical process. Fortunately the advances made in the characterization of biofluids using proteomic techniques have been rapid and suggest that these mainly discovery driven approaches will lead to the development of highly specific platforms for diagnosing diseases and monitoring responses to different treatments in the near future.
Media enjoyment as a function of individual responses and emotional contagion

Media enjoyment is one of the vital factors that support the media industry business and important aspect of media consumption. However, the real nature of media enjoyment has not been clearly explicated. This study defines media enjoyment as viewers’ positive reactions toward the whole media experiences and proposes that both individual and social responses toward media content contribute to viewers’ overall experiences of media enjoyment. Adopting the idea of emotional contagion, this study suggests that viewers tend to be affected by other viewers and synchronize their enjoyment with others. In this study, enjoyment of mediated communication in dyadic situations is diagrammed as a simple triangle relationship. Two concepts play major roles in the relationship: enjoyment and orientation. This study suggests that orientation, which is defined as a viewer’s attitudes toward specific attributes of the film (e.g. characters, sound tracks, or story line), first influence the viewer’s overall media enjoyment while viewing. Through emotional contagion effects, the enjoyment of the viewer further changes his/her peer viewer’s level of enjoyment of the media content. Five main hypotheses are proposed in the study. Issues such as enjoyment agreement between dyadic and individual viewing, changes of enjoyment over time, the
Dialogue as tensional, ethical practice

One effect of this decade's explosive growth of works on dialogue has been a broadening of the term to encompass, in some books and articles, all human meaning‐making. We argue that there are disadvantages to this broadening, that descriptive approaches to dialogue can be usefully distinguished from prescriptive ones, and that prescriptive approaches are especially potent for communication theorists and practitioners. We appropriate three elements of the Aristotelian distinction between poiesis and praxis to develop a prescriptive understanding of dialogue as tensional, situationally‐accomplished, and inherently ethical. We then focus on one venue of dialogic practice—the classroom—and illustrate some ways in which what we take to be the central tension of dialogue, letting the other happen to me while holding my own ground, is made manifest in this context. We also briefly sketch the operation of two additional tensions, those between univocality‐and‐mul‐tivocality, and theory‐and‐practice. We believe that, especially when it is understood prescriptively, dialogue can help teaching and learning happen in almost every classroom, and it can fruitfully be taught as a central part of many communication courses.
NameFilter: Achieving fast name lookup with low memory cost via applying two-stage Bloom filters

In this paper we design, implement and evaluate NameFilter, a two-stage Bloom filter-based scheme for Named Data Networking name lookup, in which the first stage determines the length of a name prefix, and the second stage looks up the prefix in a narrowed group of Bloom filters based on the results from the first stage. Moreover, we optimize the hash value calculation of name strings, as well as the data structure to store multiple Bloom filters, which significantly reduces the memory access times compared with that of non-optimized Bloom filters. We conduct extensive experiments on a commodity server to test NameFilter's throughput, memory occupation, name update as well as scalability. Evaluation results on a name prefix table with 10M entries show that our proposed scheme achieves lookup throughput of 37 million searches per second at low memory cost of only 234.27 MB, which means 12 times speedup and 77% memory savings compared to the traditional character trie structure. The results also demonstrate that NameFilter can achieve 3M per second incremental updates and exhibit good scalability to large-scale prefix tables.
Amplitude as a Cue to Word-initial Consonant Length: Pattani Malay*

Wom-initial Pattani Malay consonants are short or long. The closures of the "long" conso­ nants are longer than those of the "short" ones; this is a sufficient cue for perception, but in voiceless plosives the duration of the silent closure is audible only after a vowel, yet listen­ ers label such isolated words well and so must use other cues. The peak amplitudes for the first syllables of disyllabic words are greater for initial long plosives. In this study, incre­ ments of closure duration and amplitude were pitted against each other for original short plosives and decrements for original long plosives. In tests, duration was by far the more powerful cue, although amplitude did affect the category boundary. By itself, however, amplitude is a weak cue. Further work is planned on the possible role of the shaping of the amplitude contour.
The Properties of the X-Ray-selected EMSS Sample of BL Lacertae Objects

We present updated and complete radio, optical, and X-ray data for BL Lac objects in the Einstein Medium Sensitivity Survey (EMSS). The complete "M91" sample first presented in Morris et al. is updated to include 26 BL Lac objects in total, and we define a new, virtually complete sample consisting of 41 EMSS BL Lac objects (the "D40" sample). New high signal-to-noise ratio, arcsecond-resolution VLA observations are also presented for 11 EMSS BL Lac objects, completing VLA observations of the M91 sample. The addition of four new objects, as well as updated X-ray flux and redshift information, has increased the ⟨Ve/Va⟩ value for the M91 sample to 0.399 ± 0.057 and ⟨Ve/Va⟩ = 0.427 ± 0.045 for the newly defined D40 sample. In conjunction with other studies of X-ray–selected BL Lac (XBL) samples, these results solidify negative evolution for XBLs, especially for more extreme high-energy–peaked BL Lac objects, for which we find ⟨Ve/Va⟩ = 0.271 ± 0.077. The observed ⟨Ve/Va⟩, spectral, and radio properties of XBLs are completely consistent with being the beamed population of low-luminosity, FR-1 radio galaxies. However, our VLA observations do confirm that XBLs are too core dominated to be consistent with a beamed population of FR-1's seen at intermediate angles, as suggested by the unified model, if XBLs have moderate outflow velocities (γ ∼ 5).
Democracy and education spending in Africa

While it is widely believed that electoral competition influences public spending decisions, there has been relatively little effort to examine how recent democratization in the developing world has resulted in changes in basic service provision. There have been even fewer attempts to investigate whether democracy matters for public spending in the poorest developing countries, where “weak institutions” may mean that the formal adoption of electoral competition has little effect on policy. In this article I confront these questions directly, asking whether the shift to multiparty competition in African countries has resulted in increased spending on primary education. I develop an argument, illustrated with a game-theoretic model, which suggests that the need to obtain an electoral majority may have prompted African governments to spend more on education and to prioritize primary schools over universities within the education budget. I test three propositions from the model using panel data on electoral competition and education spending in African countries. I find clear evidence that democratically elected African governments have spent more on primary education, while spending on universities appears unaffected by democratization.
Characterization of the Modes of Binding between Human Sweet Taste Receptor and Low-Molecular-Weight Sweet Compounds

One of the most distinctive features of human sweet taste perception is its broad tuning to chemically diverse compounds ranging from low-molecular-weight sweeteners to sweet-tasting proteins. Many reports suggest that the human sweet taste receptor (hT1R2–hT1R3), a heteromeric complex composed of T1R2 and T1R3 subunits belonging to the class C G protein–coupled receptor family, has multiple binding sites for these sweeteners. However, it remains unclear how the same receptor recognizes such diverse structures. Here we aim to characterize the modes of binding between hT1R2–hT1R3 and low-molecular-weight sweet compounds by functional analysis of a series of site-directed mutants and by molecular modeling–based docking simulation at the binding pocket formed on the large extracellular amino-terminal domain (ATD) of hT1R2. We successfully determined the amino acid residues responsible for binding to sweeteners in the cleft of hT1R2 ATD. Our results suggest that individual ligands have sets of specific residues for binding in correspondence with the chemical structures and other residues responsible for interacting with multiple ligands.
Efficient anonymous multi-receiver ID-based encryption with constant decryption cost

Anonymous multi-receiver identity (ID)-based encryption (anonymous MIBE) allows a sender to use the identities of multiple receivers to encrypt messages such that only the selected receivers can decrypt the messages while nobody, except the sender, knows who the other selected receivers are. Recently, several anonymous MIBE schemes were proposed. However, some security weaknesses were found in some of these schemes. Moreover, in the existing anonymous MIBE schemes, the decryption cost required for each receiver is linear in the number of selected receivers. In this article, we propose an efficient anonymous MIBE scheme and formally prove that it is semantically secure for both confidentiality and receiver anonymity. With compared to previously proposed anonymous MIBE schemes, our scheme has the best performance while offers provable security.
Thyroid Function, Prevalent Coronary Heart Disease, and Severity of Coronary Atherosclerosis in Patients Undergoing Coronary Angiography

This study investigated if free T4 and TSH concentrations or thyroid function categories were associated with prevalent CHD and the severity of coronary atherosclerosis in a population undergoing coronary angiography. This was a cross-sectional study including 1799 patients who were consecutively admitted and underwent coronary angiography. We evaluated the severity of coronary atherosclerosis using Gensini score. In the entire study population, free T4 level was inversely associated with prevalent CHD (OR = 0.95, 95% CI 0.91–0.99, P = 0.01) and the natural log-transformed Gensini score (ln(Gensini score)) (β = −0.03, 95% CI −0.05–−0.01, P = 0.005). The odds of CHD increased gradually across hyperthyroidism, subclinical hypothyroidism, and overt hypothyroidism groups using the euthyroid group as the reference, and the trend is borderline significant (P for trend = 0.051). When comparing to the euthyroid group, ln(Gensini score) of the overt hypothyroidism group was significantly higher (P = 0.009), but the trend was not significant (P for trend = 0.08). A significant association of thyroid function with CHD or ln(Gensini score) in euthyroid patients was not observed. The present study demonstrated an association of thyroid function with prevalent CHD and the severity of coronary atherosclerosis in a population undergoing coronary angiography. However, this association was not observed in euthyroid individuals.
Fluctuations in spo0A Transcription Control Rare Developmental Transitions in Bacillus subtilis

Phosphorylated Spo0A is a master regulator of stationary phase development in the model bacterium Bacillus subtilis, controlling the formation of spores, biofilms, and cells competent for transformation. We have monitored the rate of transcription of the spo0A gene during growth in sporulation medium using promoter fusions to firefly luciferase. This rate increases sharply during transient diauxie-like pauses in growth rate and then declines as growth resumes. In contrast, the rate of transcription of an rRNA gene decreases and increases in parallel with the growth rate, as expected for stable RNA synthesis. The growth pause-dependent bursts of spo0A transcription, which reflect the activity of the spo0A vegetative promoter, are largely independent of all known regulators of spo0A transcription. Evidence is offered in support of a “passive regulation” model in which RNA polymerase stops transcribing rRNA genes during growth pauses, thus becoming available for the transcription of spo0A. We show that the bursts are followed by the production of phosphorylated Spo0A, and we propose that they represent initial responses to stress that bring the average cell closer to the thresholds for transition to bimodally expressed developmental responses. Measurement of the numbers of cells expressing a competence marker before and after the bursts supports this hypothesis. In the absence of ppGpp, the increase in spo0A transcription that accompanies the entrance to stationary phase is delayed and sporulation is markedly diminished. In spite of this, our data contradicts the hypothesis that sporulation is initiated when a ppGpp-induced depression of the GTP pool relieves repression by CodY. We suggest that, while the programmed induction of sporulation that occurs in stationary phase is apparently provoked by increased flux through the phosphorelay, bet-hedging stochastic transitions to at least competence are induced by bursts in transcription.
Brian McElree Evidence in Support of a Single Store Are Representations in Working Memory Distinct From Representations in Long-Term Memory ? : Neural

Neural activation in a 12-item probe-recognition task was examined to investigate the contribution of the hippocampus to long-term memory (LTM) retrieval and working memory (WM) retrieval. Results indicated a dissociation between the last item that participants studied and other items of the study list: Compared with all other serial positions, activation was reduced for the item in the most recent position (for which no items intervened between study and test). This finding suggests that this last item was in focal attention at test time, and, therefore, no retrieval operation was required to access it. However, contra the assertion that the hippocampus should selectively support LTM, activation of the medial temporal lobe was observed for all serial positions other than the last position, and activation level could be predicted from the underlying memory strength. Collectively, these findings support single-store accounts that assume there are similar operating principles across WM and LTM representations, and the focus of attention is limited.
Preaching politics: Islam and Christianity on the Kenya coast

ABSTRACT Focusing on the Kenya coast, this article analyses the developing contrast between the place of Islam and Christianity in public politics. It argues that Islam’s association with criticism of the political order contrasts with Christianity, but that this is not the result of inherent difference between the religions. Both have previously provided a language, and space, for political commentary and activism in Kenya. The contrast is rather the contingent result of particular circumstances in Kenya. Christianity has become increasingly associated with affirming clientelism and the accumulation of wealth in a way which is avowedly non-political but in practice legitimates the current political order. Meanwhile, although individual Muslims are more likely to enjoy high political office than was previously the case, Muslims are also more likely to locate their experience as symptomatic of a wider pattern of exclusion in Kenya and link this sense of local injustice to global inequalities.
Potentially Pathogenic Airway Bacteria and Neutrophilic Inflammation in Treatment Resistant Severe Asthma

Background Molecular microbiological analysis of airway samples in asthma has demonstrated an altered microbiome in comparison to healthy controls. Such changes may have relevance to treatment-resistant severe asthma, particularly those with neutrophilic airway inflammation, as bacteria might be anticipated to activate the innate immune response, a process that is poorly steroid responsive. An understanding of the relationship between airway bacterial presence and dominance in severe asthma may help direct alternative treatment approaches. Objective We aimed to use a culture independent analysis strategy to describe the presence, dominance and abundance of bacterial taxa in induced sputum from treatment resistant severe asthmatics and correlate findings with clinical characteristics and airway inflammatory markers. Methods Induced sputum was obtained from 28 stable treatment-resistant severe asthmatics. The samples were divided for supernatant IL-8 measurement, cytospin preparation for differential cell count and Terminal Restriction Fragment Length Polymorphism (T-RFLP) profiling for bacterial community analysis. Results In 17/28 patients, the dominant species within the airway bacterial community was Moraxella catarrhalis or a member of the Haemophilus or Streptococcus genera. Colonisation with these species was associated with longer asthma disease duration (mean (SD) 31.8 years (16.7) vs 15.6 years (8.0), p = 0.008), worse post-bronchodilator percent predicted FEV1 (68.0% (24.0) vs 85.5% (19.7), p = 0.025) and higher sputum neutrophil differential cell counts (median (IQR) 80% (67–83) vs 43% (29–67), p = 0.001). Total abundance of these organisms significantly and positively correlated with sputum IL-8 concentration and neutrophil count. Conclusions Airway colonisation with potentially pathogenic micro-organisms in asthma is associated with more severe airways obstruction and neutrophilic airway inflammation. This altered colonisation may have a role in the development of an asthma phenotype that responds less well to current asthma therapies.
Bayesian benefits with JASP

Abstract We illustrate the Bayesian approach to data analysis using the newly developed statistical software program JASP. With JASP, researchers are able to take advantage of the benefits that the Bayesian framework has to offer in terms of parameter estimation and hypothesis testing. The Bayesian advantages are discussed using real data on the relation between Quality of Life and Executive Functioning in children with Autism Spectrum Disorder.
Transition care: will it deliver?

Transition care is a new program to Australia that is designed to facilitate transitions of frail older people between the hospital and aged care systems. This program is designed to deliver potentially important improvements to the Australian health care system — but will it deliver? The current evidence base regarding the efficacy of this type of program is mixed, and there is little evidence to indicate improved patient outcomes. An average transition care episode is expensive (about $11 000). Therefore, careful consideration of the relative cost‐effectiveness compared with other interface programs such as inpatient subacute services is essential. Transition care services should be established within the context of overall regional plans for aged care, incorporating hospital acute and subacute inpatient services, and long‐term community and residential care programs.