Miracle-dz/UniFAR-FTUs huggingface dataset:
Circular polarization of water masers in the circumstellar envelopes of late type stars

We present circular polarization measurements of circumstellar H2O masers. The magnetic fields in circumstellar envelopes are generally examd. by polarization observations of SiO and OH masers. SiO masers C probe the high temp. and d. regime close to the central star. OH masers are found at much lower densities and temps. , generally much further out in the circumstellar envelope. The circular polarization detected in the (616-523) rotational transition of the H2O maser can be attributed to Zeeman splitting in the intermediate temp. and d. regime. The magnetic fields are derived using a general, LTE Zeeman anal. as well as a full radiative transfer method (non-LTE), which includes a treatment of all hyperfine components simultaneously as well as the effects of satn. and unequal populations of the magnetic substates. The differences and relevances of these interpretations are discussed extensively. We also address a non-Zeeman interpretation as the cause for the circular polarization, but this is found to be unlikely. We favor the non-LTE anal. The H2O masers are shown to be unsatd. , on the basis of their line widths and the lack of linear polarization. The field strengths are compared with previous detections of the magnetic field on the SiO and OH masers. Assuming a r-2 dependence of the magnetic field on the distance to the star, similar to a solar-type magnetic field, our results seem to indicate that we are probing the highest d. maser clumps at the inner edge of the H2O maser region. This allows us to est. the d. of the clumps, and the extent of the H2O maser region. We show that the magnetic pressure dominates the thermal pressure by a factor of 20 or more. We also give an order of magnitude est. of the magnetic field on the surface of the stars. In particular we discuss the differences between supergiants and Mira variable stars. [on SciFinder (R)]
Generalized area spectral efficiency: An effective performance metric for green wireless communications

Area spectral efficiency (ASE) was introduced as a metric to quantify the spectral efficiency of cellular systems. Unlike other performance metrics, ASE takes into account the spatial property of cellular wireless system. In this paper, we generalize the ASE metric for arbitrary wireless transmission. Specifically, we introduce the concept of affected area, based on which we evaluate the spectral and power efficiency of three different transmission scenarios, namely single user point-to-point transmission, two-user X channel transmission and two-hop relay transmission. We derive the closed-form expressions of resulting generalized ASE (GASE) metric for each transmission scenario over Rayleigh fading environment. We show through mathematical analysis and numerical examples that there is an optimal choice of transmitting power value in terms of maximizing the area spectrum efficiency.
A controlled prospective study of DSM-III adjustment disorder in childhood. Short-term prognosis and long-term predictive validity.

OBJECTIVES Using DSM-III criteria for adjustment disorder (AD), further operationalized by requiring at least three clinically significant symptoms, we sought to characterize this diagnosis in terms of presenting features, recovery, and predictive validity among juveniles. DESIGN The samples included clinically referred, 8- to 13-year-old patients with the research diagnosis of AD (N = 30) and a high rate of comorbid disorders and age-and comorbid disorder-matched psychopathologic controls (N = 26). As part of a naturalistic, longitudinal, nosologic study, patients were repeatedly examined during an average follow-up interval of 7 to 8 years. RESULTS Adjustment disorder was associated with six symptoms, on average, and 60% of the patients had other, specific psychiatric disorders. Adjustment disorder had a median episode length of 7 months and a 97% recovery rate. Comorbidity had no appreciable effect on recovery. Patients with adjustment disorder and controls had similar rates of new psychiatric disorders and other dysfunctional outcomes during the follow-up. CONCLUSIONS Among psychiatrically referred youths, the diagnosis of AD has clinical information value and identifies a syndromatic presentation that can be the focus of concern or treatment. It has a reasonably good short-term prognosis, in spite of the fact that patients with this diagnosis typically present with comorbid specific psychiatric disorders. Controlling for the effects of comorbidity, AD does not predict later dysfunction. To achieve a convergence of findings from research and clinical practice, it would be important to ensure a uniform application of specific, operational diagnostic criteria for AD.
Pengembangan Modul Praktikum Kimia SMA Berbasis PBL(Problem Based Learning)

The research was intended to develop a simple practical guide and pieces of science process skills and scientific attitude of students assessment. Development model used was ADDIE, which stands for Analysis, Design, Development, Implementation and Evaluation. The model used in the lab module was problem based learning, which students were given problems before practicum began. Subjects of trials in this study consisted of six students were grouped into three categories of cognitive abilities, smart students, middle students and weak students. Results of product trials indicated that all students responded positively to the lab module. Modules can be applied to students with diverse cognitive abilities, the weak cognitive students could need teacher guidance, especially in the matter of analysis to understand.
Five year prognosis of an Italian cohort of juvenile acute myocardial infarction patients.

AIM The aim of this study was to describe the five-year prognosis of an Italian cohort of patients following acute myocardial infarction (AMI) occurred at age ≤ 45 years and to investigate the potential role of risk predictors for future cardiovascular events (CVE). METHODS The study enrolled 112 consecutive patients aged ≤ 45 years admitted to our Coronary Care Unit between March 1995 and January 2007 because of AMI. Clinical characteristics, extent of coronary vessel disease by angiogram and cardiovascular risk factors (including diet, physical activity, alcohol and coffee consumption) were registered. RESULTS Complete follow-up data was available for 104 (93%) patients with a duration of follow-up of 5.3 (2.9-7.6) years. Twenty-four (23%) patients presented with a new CVE: 16 (15%) angina pectoris, 6 (6%) recurrent AMI, one heart failure and one cardiac death. One in every five patients presented left ventricle systolic function below 50%. Multivariate analysis (Cox proportional regression model) proved physical activity as an independent predictor of new CVE occurrence (P=0.014). Patients who practised moderate aerobic physical activity for at least two hours per week following AMI had significantly higher event-free survival compared with inactive controls (P=0.029). CONCLUSION Five-year prognosis of juvenile AMI is poor, with one in every five patients presenting a new CVE. Based on the present cohort of patients physical activity following first event plays a relevant prognostic role, supporting the need of careful lifestyle counselling.
Identity, gender, and the role of age of acquisition in face processing

Two experiments examined the effects of age of acquisition (AoA) and the gender of stimulus faces on familiarity decisions (Experiment 1) and gender decisions (Experiment 2) to the same set of famous and unfamiliar faces presented as whole faces, internal features or external features. In Experiment 1, familiarity decisions were faster to whole faces than to internal or external features. Famous faces with early AoA were recognised faster than later acquired faces, though the effect was only reliable for famous male faces, and for whole faces and internal features rather than for external features. In Experiment 2, gender decisions were made more rapidly to whole faces than to internal or external features. Classification was faster to famous than to unfamiliar faces when the faces were presented as internal features or external features, but not when they were presented as whole faces. More gender classification errors were made to famous than to unfamiliar male faces, but there was no effect of familiarity on the accuracy of responses to female faces. AoA had no effect on gender classification of whole faces or external features. Classification from internal features was faster for early than for late acquired male faces, but faster for late than for early female faces. In the light of the anomalous results for female faces, responses to male faces were analysed separately. The results for the male faces form the focus of the discussion.
Packet loss protection of embedded data with fast local search

Unequal loss protection with systematic Reed-Solomon codes allows reliable transmission of embedded multimedia over packet erasure channels. The design of a fast algorithm with low memory requirements for the computation of an unequal loss protection solution is essential in real-time systems. Because the determination of an optimal solution is time-consuming, fast suboptimal solutions have been used. In this paper, we present a fast iterative improvement algorithm with negligible memory requirements. Experimental results for the JPEG2000, 2D, and 3D set partitioning in hierarchical trees (SPIHT) coders showed that our algorithm provided close to optimal peak signal-to-noise ratio (PSNR) performance, while its time complexity was significantly lower than that of all previously proposed algorithms.
Leisure in the lifestyles of dual-earner families in the United Kingdom

This thesis examines the work, family and leisure lives of heterosexual dual-earner couples with dependent children in the United Kingdom. The primary aim is to explore, analyse and assess the role played by leisure in the lifestyles of dual-earner couples. The thesis looks at how paid and unpaid work, family and leisure interact across the lifecourse and within dual-earner couples. Part I begins by locating dual-earner families within a social-historical, political and policy context. Firstly, the social history of the family as a productive unit is used to deconstruct the concept of dual-earning and its varying meanings over time. Secondly, large-scale statistical data are drawn on to track the growth of dual-earning since the 1970s in the context of widespread socio-demographic changes in Britain. In addition, the extent to which dual-earner families are the object of political and policy concern is examined in a review of family-related policy-making and political rhetoric in Britain and the European Union. A theoretical framework for the thesis is established from a review of the social science and leisure studies literature on dual-earner families. A 'gender constructivist' approach, developed from a body of largely second wave feminist work since the 1970s in the social sciences, is adopted as an analytic tool to study dual-earner families. The fieldwork for the thesis included in-depth interviews and life histories with both partners in 14 dual-earner couples with dependent children. The analyses in Part II of the thesis focus on the work and family histories of partners, the relationships between work, family and leisure for individuals at different stages in the lifecourse and the contextual meanings of leisure, which are shown to be dynamic and mutually dependent both for individuals and between partners. The results from the empirical work reveal the complex patterns of daily life in dual-earner families. Work, family and leisure was also shown to be highly gendered. Women and men had different lifestyle priorities after the birth of children. The primary difference was women's greater tendency to relinquish leisure in the light of other demands and men's ability to retain relatively autonomous leisure throughout the lifecourse. The findings also uncovered some of the complicated processes of negotiation within the couple unit that acted to construct and reconstruct gendered lifestyles. The thesis concludes with a discussion of the value of considering leisure as a central component in investigations of lifestyle across the lifecourse and highlights the crucial role it plays in the formation and maintenance of gender relations within the home.
On individuality and social forms : selected writings

"Of those who created the intellectual capital used to launch the enterprise of professional sociology, Georg Simmel was perhaps the most original and fecund. In search of a subject matter for sociology that would distinguish it from all other social sciences and humanistic disciplines, he charted a new field for discovery and proceeded to explore a world of novel topics in works that have guided and anticipated the thinking of generations of sociologists. Such distinctive concepts of contemporary sociology as social distance, marginality, urbanism as a way of life, role-playing, social behavior as exchange, conflict as an integrating process, dyadic encounter, circular interaction, reference groups as perspectives, and sociological ambivalence embody ideas which Simmel adumbrated more than six decades ago. " Donald N. Levine Half of the material included in this edition of Simmel's writings represents new translations. This includes Simmel's important, lengthy, and previously untranslated "Group Expansion and Development of Individuality," as well as three selections from his most neglected work, "Philosophy of Money"; in addition, the introduction to "Probleme der Geschichtsphilosophie," chapter one of the "Lebensanschauung," and three essays are translated for the first time. "
Radio jets in galaxies with actively accreting black holes : new insights from the SDSS

In the local Universe, the majority of radio-loud active galactic nuclei (AGN) are found in massive elliptical galaxies with old stellar populations and weak or undetected emission lines. At high redshifts, however, almost all known radio AGN have strong emission lines. This paper focuses on a subset of radio AGN with emission lines (EL-RAGN) selected from the Sloan Digital Sky Survey. We explore the hypothesis that these objects are local analogues of powerful high-redshift radio galaxies. The probability for a nearby radio AGN to have emission lines is a strongly decreasing function of galaxy mass and velocity dispersion and an increasing function of radio luminosity above 1025 W Hz−1. Emission-line and radio luminosities are correlated, but with large dispersion. At a given radio power, radio galaxies with small black holes have higher [O iii] luminosities (which we interpret as higher accretion rates) than radio galaxies with big black holes. However, if we scale the emission-line and radio luminosities by the black hole mass, we find a correlation between normalized radio power and accretion rate in Eddington units that is independent of black hole mass. There is also a clear correlation between normalized radio power and the age of the stellar population in the galaxy. Present-day EL-RAGN with the highest normalized radio powers are confined to galaxies with small black holes. High-redshift, high radio-luminosity AGN would be explained if big black holes were similarly active at earlier cosmic epochs. To investigate why only a small fraction of emission-line AGN become radio-loud, we create matched samples of radio-loud and radio-quiet AGN and compare their host galaxy properties and environments. The main difference lies in their environments; our local density estimates are a factor of 2 larger around the radio-loud AGN. We propose a scenario in which radio-loud AGN with emission lines are located in galaxies where accretion of both cold and hot gas can occur simultaneously. At the present day, these conditions are only satisfied for low-mass galaxies in dense environments, but they are likely to apply to most galaxies with massive black holes at higher redshifts.
Non-invasive prenatal testing: a review of international implementation and challenges

Noninvasive prenatal genetic testing (NIPT) is an advance in the detection of fetal chromosomal aneuploidies that analyzes cell-free fetal DNA in the blood of a pregnant woman. Since its introduction to clinical practice in Hong Kong in 2011, NIPT has quickly spread across the globe. While many professional societies currently recommend that NIPT be used as a screening method, not a diagnostic test, its high sensitivity (true positive rate) and specificity (true negative rate) make it an attractive alternative to the serum screens and invasive tests currently in use. Professional societies also recommend that NIPT be accompanied by genetic counseling so that families can make informed reproductive choices. If NIPT becomes more widely adopted, States will have to implement regulation and oversight to ensure it fits into existing legal frameworks, with particular attention to returning fetal sex information in areas where sex-based abortions are prevalent. Although there are additional challenges for NIPT uptake in the developing world, including the lack of health care professionals and infrastructure, the use of NIPT in low-resource settings could potentially reduce the need for skilled clinicians who perform invasive testing. Future advances in NIPT technology promise to expand the range of conditions that can be detected, including single gene disorders. With these advances come questions of how to handle incidental findings and variants of unknown significance. Moving forward, it is essential that all stakeholders have a voice in crafting policies to ensure the ethical and equitable use of NIPT across the world.
An Experimental Analysis ofGroup Size and Risk Sharing

We study the relationship between group size and the extent of risk sharing in an insurance game played over a number of periods with random idiosyncratic and aggregate shocks to income in each period. Risk sharing is attained via agents that receive a high endowment in one period making unilateral transfers to agents that receive a low endowment in that period. The complete risk sharing allocation is for all agents to place their endowments in a common pool, which is then shared equally among members of the group in every period. Theoretically, the larger the group size, the smaller the per capita dispersion in consumption and greater is the potential value of insurance. Field evidence however suggests that smaller groups do better than larger groups as far as risk sharing is concerned. Results from our experiments show that the extent of mutual insurance is significantly higher in smaller groups, though contributions to the pool are never close to what complete risk sharing requires.
Evolution in the properties of Lyman-α emitters from redshifts z ~ 3 to z ~ 2

Context: Narrow-band surveys to detect Lyα emitters are powerful tools for identifying high, and very high, redshift galaxies. Although samples are increasing at redshifts z = 3 {-} 6, the nature of these galaxies is still poorly known. The number of galaxies detected at redshifts below z ˜ 3 are also small. Aims: We study the properties of z = 2.25 Lyα emitters and compare them with those of z > 3 Lyα emitters. Methods: We present narrow-band imaging made with the MPG/ESO 2.2m telescope and the WFI (Wide Field Imager) detector. Using this data, we have searched for emission-line objects. We find 170 candidate typical Lyα emitters and 17 candidates that we regard as high UV-transmission Lyα emitters. We have derived the magnitudes of these objects in 8 photometric bands from u* to K_s, and studied whether they have X-ray and/or radio counterparts. Results: We demonstrate that there has been significant evolution in the properties of Lyα emitters between redshift z ˜ 3 and z = 2.25. The spread in spectral energy distributions (SEDs) at the lower redshift is larger and we detect a significant AGN contribution in the sample. The distribution of the equivalent widths is narrower than at z ˜ 3, with only a few candidates with rest-frame equivalent width above the predicted limit of 240 A. The star formation rates derived from the Lyα emission compared to those derived from the UV emission are lower by on average a factor of ˜ 1.8, indicative of a significant absorption by dust. Conclusions: Lyα emitters at redshift z = 2.25 may be more evolved than Lyα emitters at higher redshift. The red SEDs imply more massive, older and/or dustier galaxies at lower redshift than observed at higher redshifts. The decrease in equivalent widths and star formation rates indicate more quiescent galaxies, with in general less star formation than in higher redshift galaxies. At z = 2.25, AGN appear to be more abundant and also to contribute more to the Lyα emitting population. Full Table 2 is only available in electronic form at http://www.aanda. org
A novel p21-activated kinase binds the actin and microtubule networks and induces microtubule stabilization

Coordination of the different cytoskeleton networks in the cell is of central importance for morphogenesis, organelle transport, and motility. The Rho family proteins are well characterized for their effects on the actin cytoskeleton, but increasing evidence indicates that they may also control microtubule (MT) dynamics. Here, we demonstrate that a novel Cdc42/Rac effector, X-p21-activated kinase (PAK)5, colocalizes and binds to both the actin and MT networks and that its subcellular localization is regulated during cell cycle progression. In transfected cells, X-PAK5 promotes the formation of stabilized MTs that are associated in bundles and interferes with MTs dynamics, slowing both the elongation and shrinkage rates and inducing long paused periods. X-PAK5 subcellular localization is regulated tightly, since coexpression with active Rac or Cdc42 induces its shuttling to actin-rich structures. Thus, X-PAK5 is a novel MT-associated protein that may communicate between the actin and MT networks during cellular responses to environmental conditions.
In their own words

This study adopts an inductive and dyadic approach to illuminate how depression affects romantic relationships in people’s own words. Depressed couples (N = 135) responded to an open-ended item about ways that depression influences their romantic relationship. Content analytic results indicated eight categories of negative effects (emotional toll, romance and sexual intimacy, communication, isolation, lack of energy/motivation, dependence on the relationship, lack of understanding, and uncertainty) and one category of positive effects (enhanced intimacy). Dyadic analyses identified the effects of depression with the most agreement and complementarity within couples. Other findings revealed how people’s reports of the effects of depression varied by their own and their partner’s depression status. The discussion highlights the theoretical, empirical, and practical implications.
Molecular Phylogeny and Evolution of Morphology in the Social Amoebas

The social amoebas (Dictyostelia) display conditional multicellularity in a wide variety of forms. Despite widespread interest in Dictyostelium discoideum as a model system, almost no molecular data exist from the rest of the group. We constructed the first molecular phylogeny of the Dictyostelia with parallel small subunit ribosomal RNA and a-tubulin data sets, and we found that dictyostelid taxonomy requires complete revision. A mapping of characters onto the phylogeny shows that the dominant trend in dictyostelid evolution is increased size and cell type specialization of fruiting structures, with some complex morphologies evolving several times independently. Thus, the latter may be controlled by only a few genes, making their underlying mechanisms relatively easy to unravel.