476 research outputs found
The effect of foreign institutional investors on corporate governance: evidence from Chinese publicly listed firms
Compared to the astonishing growth of the Chinese economy in the last 40 years, the development of its capital markets has been lagging behind. Now that the economic system is transforming from an export-based and investment-driven model to a consumption-based and innovation-driven one, an efficient stock market has never been more relevant. To promote the development of the Shanghai Stock Exchange (SSE) and the Shenzhen Stock Exchange (SZSE), the China Securities Regulatory Commission (CSRC) has implemented a range of new policies in the last decade. One of these policies aims at increasing the presence of foreign institutional investors. The objective of this thesis is therefore to analyse if the new influx of foreign investors have performed a monitoring role and improved firm-level corporate governance structures. More specifically, we hypothesise that larger and long-term foreign institutional investments drive corporate governance improvements. We have collected an extensive foreign ownership database and used multiple metrics to measure firm-level corporate governance. Namely, we use a corporate governance index, a transparency disclosure rating, and individual corporate governance attributes. In order to alleviate endogeneity concerns, we performed a variety of empirical tests, such as analysing the effect of lagged, significant changes in foreign ownership on the level of corporate governance. We indeed found that foreign institutional investors have enhanced the development of corporate governance mechanisms in Chinese publicly listed firms. Therefore, our results indicate that further relaxations in foreign ownership restrictions will hasten the development of the Chinese capital markets
La sanità transculturale: nuove necessità nell''assistenza alla persona di etnia straniera
Subjective wellbeing of Italian healthcare professionals during the SARS-CoV-2 outbreak: A quasi-experiment
Italy was one of the strongest hit countries from the SARS-CoV-2 and the healthcare system was put under exceptional stress during the outbreak. The lockdown imposed on the population put the economy on hold and opened the way for a crisis that would have an impact on the healthcare system and the economy of the country. This study compares levels of subjective wellbeing among healthcare professionals before the outbreak and during the most critical moment of the lockdown, when Italy was the first country in the world by number of infections. Subjective wellbeing was measured with emotional wellbeing, job satisfaction, global happiness and satisfaction with life. Each measure was compared before and during the outbreak as well as among different subgroups of respondents. A special attention was put on inequalities in professional level, gender and educational level as well as their effect on subjective wellbeing. The study finds that while emotional wellbeing had a slight decrease, other measures were untouched and job satisfaction even increased during the lockdown period. Present wellbeing differences based in inequalities in professional and educational level were lifted once professionals were fighting the SARS-CoV-2 outbreak. This decrease in inequalities and increase in job satisfaction might be strongly related to a newfound trust in healthcare professionals, a high gratitude from the population and a feeling of accomplishment and meaning as described in the PERMA model. The findings of this study should help healthcare organizations to keep inequalities low as well as other organizations to apply those learnings in their structure
Third trimester intrauterine fetal death: proposal for the assessment of the chronology of umbilical cord and placental thrombosis
: The timing of umbilical cord and placental thrombosis in the third trimester intrauterine fetal death (TT-IUFD) may be fundamental for medico-legal purposes, when it undergoes medical litigation due to the absence of risk factors. Authors apply to human TT-IUFD cases a protocol, which includes histochemistry and immunohistochemistry (IHC) for the assessment of thrombi's chronology. A total of 35 thrombi of umbilical cord and/or placenta were assessed: 2 in umbilical artery, 6 in umbilical vein, 15 in insertion, 10 in chorionic vessels, 1 in fetal renal vein, 1 in fetal brachiocephalic vein. Thrombi's features were evaluated with hematoxylin-eosin, Picro-Mallory, Von Kossa, Perls, and immunohistochemistry for CD15, CD68, CD31, CD61, and Smooth Muscle Actin. The estimation of the age of the thrombi was established by applying neutrophils/macrophages ratio taking into consideration, according to literature, the presence of hemosiderophagi, calcium deposition, and angiogenesis. To estimate an approximate age of fresh thrombi (< 1 day), a non-linear regression model was tested. Results were compared to maternal risk factors, fetal time of death estimated at autopsy, mechanism, and cause of death. Our study confirms that the maternal risk factors for fetal intrauterine death and the pathologies of the cord, followed by those of the placental parenchyma, are the conditions that are most frequently associated with the presence of thrombi. Results obtained with histological stainings document that the neutrophile/macrophage ratio is a useful tool for determining placental thrombi's age. Age estimation of thrombi on the first day is very challenging; therefore, the study presented suggests the N/M ratio as a parameter to be used, together with others, i.e., hemosiderophagi, calcium deposition, and angiogenesis, for thrombi's age determination, and hypothesizes that its usefulness regards particularly the first days when all other parameters are negative
Advanced RFID-Robot With Rotating Antennas for Smart Inventory in High-Density Shelving Systems
Binding affinity of amyloid oligomers to cellular membranes is a generic indicator of cellular dysfunction in protein misfolding diseases
The conversion of peptides or proteins from their soluble native states into intractable amyloid deposits is associated with a wide range of human disorders. Misfolded protein oligomers formed during the process of aggregation have been identified as the primary pathogenic agents in many such conditions. Here, we show the existence of a quantitative relationship between the degree of binding to neuronal cells of different types of oligomers formed from a model protein, HypF-N, and the GM1 content of the plasma membranes. In addition, remarkably similar behavior is observed for oligomers of the Aβ(42) peptide associated with Alzheimer’s disease. Further analysis has revealed the existence of a linear correlation between the level of the influx of Ca(2+) across neuronal membranes that triggers cellular damage, and the fraction of oligomeric species bound to the membrane. Our findings indicate that the susceptibility of neuronal cells to different types of misfolded oligomeric assemblies is directly related to the extent of binding of such oligomers to the cellular membrane
Concurrent and predictive validity of the infant motor profile in infants at risk of neurodevelopmental disorders
BACKGROUND: Preterm infants and infants with perinatal brain injury show a higher incidence of neurodevelopmental disorders (NDD). The Infant Motor Profile (IMP) is a clinical assessment which evaluates the complexity of early motor behaviour. More data are needed to confirm its predictive ability and concurrent validity with other common and valid assessments such as the Alberta Infant Motor Scale (AIMS) and Prechtl's General Movement Assessment (GMA). The present study aims to evaluate the concurrent validity of the IMP with the AIMS, to assess its association with the GMA, to evaluate how the IMP reflects the severity of the brain injury and to compare the ability of the IMP and the AIMS to predict an abnormal outcome in 5-month-old infants at risk of NDD.METHODS: 86 infants at risk of NDD were retrospectively recruited among the participants of two clinical trials. Preterm infants with or without perinatal brain injury and term infants with brain injury were assessed at 3months corrected age (CA) using the GMA and at 5months CA using the IMP and the AIMS. The neurodevelopmental outcome was established at 18months.RESULTS: Results confirm a solid concurrent validity between the IMP Total Score and the AIMS (Spearman's rho 0.76; p<.001) and a significant association between IMP Total Score and the GMA. Unlike the AIMS, the IMP Total score accurately reflects the severity of neonatal brain injury (p<.001) and proves to be the strongest predictor of NDD (p<.001). The comparison of areas under receiver operating characteristic curves (AUC) confirms that the IMP Total score has the highest diagnostic accuracy at 5months (AUC 0.92). For an optimal IMP Total Score cut-off value of 70, the assessment shows high sensitivity (93%) and specificity (81%) (PPV 84%; NPV 90%).CONCLUSIONS: Early motor behaviour assessed with the IMP is strongly associated with middle-term neurodevelopmental outcome. The present study confirms the concurrent validity of the IMP with the AIMS, its association with the GMA and its ability to reflect brain lesion load, hence contributing to the construct validity of the assessment.TRIAL REGISTRATION: NCT01990183 and NCT03234959 (clinicaltrials.gov)
A Swept-Sine-Type Single Measurement to Estimate Intermodulation Distortion in a Dynamic Range of Audio Signal Amplitudes
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