131 research outputs found
Analysis of accounting data from the explanatory notes to the financial statements for the estimation of the enterprises investments
The Italian national institute of statistics (Istat) produces estimates on the main
economic variables of enterprises, both from a Structural Business Statistics (SBS)
and a National Accounts (NA) perspective. The two production processes present
similarities and discrepancies. As far the production process of estimates on âacquisitions of fixed assetsâ during the year, also known as âenterprise investmentsâ, both SBS
and NA processes use survey data, but only NA process also uses administrative
information. The aim of the present work is to evaluate the content of the information on
Investments, at the level of the legal unit, from the administrative source of the
Explanatory Notes, beside the administrative sources already used in Istat processes. This work represents an exploratory and study phase to evaluate the usability of this
source in the production processes of Investments of both SBS and NA
Rating Prediction with Contextual Conditional Preferences
Exploiting contextual information is considered a good solution to improve the quality of recommendations, aiming at suggesting more relevant items for a specific context. On the other hand, recommender systems research still strive for solving the cold-start problem, namely where not enough information about users and their ratings is available. In this paper we propose a new rating prediction algorithm to face the cold-start system scenario, based on user interests model called contextual conditional preferences. We present results obtained with three publicly available data sets in comparison with several state-of-the-art baselines. We show that usage of contextual conditional preferences improves the prediction accuracy, even when all users have provided a few feedbacks, and hence small amount of data is available
Deceptive body movements reverse spatial cueing in soccer
This article has been made available through the Brunel Open Access Publishing Fund.The purpose of the experiments was to analyse the spatial cueing effects of the movements of soccer players executing normal and deceptive (step-over) turns with the ball. Stimuli comprised normal resolution or point-light video clips of soccer players dribbling a football towards the observer then turning right or left with the ball. Clips were curtailed before or on the turn (-160, -80, 0 or +80 ms) to examine the time course of direction prediction and spatial cueing effects. Participants were divided into higher-skilled (HS) and lower-skilled (LS) groups according to soccer experience. In experiment 1, accuracy on full video clips was higher than on point-light but results followed the same overall pattern. Both HS and LS groups correctly identified direction on normal moves at all occlusion levels. For deceptive moves, LS participants were significantly worse than chance and HS participants were somewhat more accurate but nevertheless substantially impaired. In experiment 2, point-light clips were used to cue a lateral target. HS and LS groups showed faster reaction times to targets that were congruent with the direction of normal turns, and to targets incongruent with the direction of deceptive turns. The reversed cueing by deceptive moves coincided with earlier kinematic events than cueing by normal moves. It is concluded that the body kinematics of soccer players generate spatial cueing effects when viewed from an opponent's perspective. This could create a reaction time advantage when anticipating the direction of a normal move. A deceptive move is designed to turn this cueing advantage into a disadvantage. Acting on the basis of advance information, the presence of deceptive moves primes responses in the wrong direction, which may be only partly mitigated by delaying a response until veridical cues emerge
Adolescent diet and risk of breast cancer
BACKGROUND: Early life exposures, including diet, have been implicated in the etiology of breast cancer. METHODS: A nested case-control study was conducted among participants in the Nurses' Health Study who completed a 24-item questionnaire about diet during high school. There were 843 eligible cases diagnosed between onset of study (1976) and before the return of the high school diet questionnaire (1986), who were matched 10:1 with controls on the basis of age. RESULTS: Women who had, during adolescence, a higher consumption of eggs, vegetable fat and fiber had a lower risk of breast cancer, whereas risk of breast cancer was increased among women who consumed more butter. CONCLUSIONS: A possible association of elements of adolescent diet with risk of breast cancer is reported, but the findings require confirmation in prospective study
Development and validation of a questionnaire to identify severe maternal morbidity in epidemiological surveys
<p>Abstract</p> <p>Objective</p> <p>to develop and validate a questionnaire on severe maternal morbidity and to evaluate the maternal recall of complications related to pregnancy and childbirth. <it>Design: </it>validity of a questionnaire as diagnostic instrument. <it>Setting: </it>a third level referral maternity in Campinas, Brazil. <it>Population: </it>386 survivors of severe maternal complications and 123 women that delivered without major complications between 2002 and 2007.</p> <p>Methods</p> <p>eligible women were traced and interviewed by telephone on the occurrence of obstetric complications and events related to their treatment. Their answers were compared with their medical records as gold standard. Sensitivity, specificity and likelihood ratios plus their correspondent 95% confidence intervals were used as main estimators of accuracy. <it>Main outcomes: </it>diagnosis of severe maternal morbidity associated with past pregnancies, including hemorrhage, eclampsia, infections, jaundice and related procedures (hysterectomy, admission to ICU, blood transfusion, laparotomy, inter-hospital transfer, mechanical ventilation and post partum stay above seven days).</p> <p>Results</p> <p>Women did not recall accurately the occurrence of obstetric complications, especially hemorrhage and infection. The likelihood ratios were < 5 for hemorrhage and infection, while for eclampsia it almost reached 10. The information recalled by women regarding hysterectomy, intensive care unit admission and blood transfusion were found to be highly correlated with finding evidence of the event in the medical records (likelihood ratios ranging from 12.7-240). The higher length of time between delivery and interview was associated with poor recall.</p> <p>Conclusion</p> <p>Process indicators are better recalled by women than obstetric complication and should be considered when applying a questionnaire on severe maternal morbidity.</p
Do experts see it in slow motion? Altered timing of action simulation uncovers domain-specific perceptual processing in expert athletes
Accurate encoding of the spatio-temporal properties of others' actions is essential for the successful implementation of daily activities and, even more, for successful sportive performance, given its role in movement coordination and action anticipation. Here we investigated whether athletes are provided with special perceptual processing of spatio-temporal properties of familiar sportive actions. Basketball and volleyball players and novices were presented with short video-clips of free basketball throws that were partially occluded ahead of realization and were asked to judge whether a subsequently presented pose was either taken from the same throw depicted in the occluded video (action identification task) or temporally congruent with the expected course of the action during the occlusion period (explicit timing task). Results showed that basketball players outperformed the other groups in detecting action compatibility when the pose depicted earlier or synchronous, but not later phases of the movement as compared to the natural course of the action during occlusion. No difference was obtained for explicit estimations of timing compatibility. This leads us to argue that the timing of simulated actions in the experts might be slower than that of perceived actions ("slow-motion" bias), allowing for more detailed representation of ongoing actions and refined prediction abilities
The effect of birth-weight with genetic susceptibility on depressive symptoms in childhood and adolescence
Low birth-weight has been associated with depression and related outcomes in adults, and with problem behaviours in children. This study aimed to examine the association between low birth-weight for gestation and depressive symptoms in children and adolescents and to examine whether the relationship is moderated by genetic risk for depression. An epidemiological, genetically sensitive design was used including 2,046 twins aged 8â17Â years (1,023 families). Data were obtained by parental report and analysed using regression analysis. A small but significant association between birth-weight for gestation and early depressive symptoms was observed. The unit increase in depressive symptoms per unit decrease in birth-weight for gestation was greater for individuals at genetic or familial risk for depression. For low birth-weight children, genetic risk for depression moderated the influence of birth-weight for gestation in predicting early depressive symptoms. Birth-weight for gestation is moderated by genetic and familial risk for depression in influencing early depression symptoms. These observations have clinical implications in that the impact of being small for gestational age on depressive symptoms is greater in children at familial/genetic risk although the association between birth weight and depression does not imply causality
Agreement between self-reported perinatal outcomes and administrative data in New South Wales, Australia
Please understand when I cry out in pain: women's accounts of maternity services during labour and delivery in Ghana
BACKGROUND: This study was undertaken to investigate women's accounts of interactions with health care providers during labour and delivery and to assess the implications for acceptability and utilisation of maternity services in Ghana. METHODS: Twenty-one individual in-depth interviews and two focus group discussions were conducted with women of reproductive age who had delivered in the past five years in the Greater Accra Region. The study investigated women's perceptions and experiences of care in terms of factors that influenced place of delivery, satisfaction with services, expectations of care and whether they would recommend services. RESULTS: One component of care which appeared to be of great importance to women was staff attitudes. This factor had considerable influence on acceptability and utilisation of services. Otherwise, a successful labour outcome and non-medical factors such as cost, perceived quality of care and proximity of services were important. Our findings indicate that women expect humane, professional and courteous treatment from health professionals and a reasonable standard of physical environment. Women will consciously change their place of delivery and recommendations to others if they experience degrading and unacceptable behaviour. CONCLUSION: The findings suggest that inter-personal aspects of care are key to women's expectations, which in turn govern satisfaction. Service improvements which address this aspect of care are likely to have an impact on health seeking behaviour and utilisation. Our findings suggest that user-views are important and warrant further investigation. The views of providers should also be investigated to identify channels by which service improvements, taking into account women's views, could be operationalised. We also recommend that interventions to improve delivery care should not only be directed to the health professional, but also to general health system improvements
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