535 research outputs found
Insomnia and emotion regulation. Recent findings and suggestions for treatment
Recent findings suggest that insomnia and emotion regulation are closely connected. Insomnia is widely associated with medical and psychiatric conditions as well as with impaired quality of life and emotional functioning. Additionally empirical evidence suggests that emotional dysregulation plays a crucial role in the onset and maintenance of psychopathological disorders. Although these seem to interact, very few studies investigated the relationship between disturbed sleep and problems in emotion regulation. Cognitive Behavioral Therapy for Insomnia (CBT-I) has been demonstrated to be effective in comorbid insomnia. However, emotion regulation skills are not included in this intervention. After reviewing the recent findings of the literature, we aim to discuss future directions for the inclusion of emotion regulation training in the treatment of insomnia disorde
Counting sub-multisets of fixed cardinality
This report presents an expression for the number of a multiset's
sub-multisets of a given cardinality as a function of the multiplicity of its
elements. This is also the number of distinct samples of a given size that may
be produced by sampling without replacement from a finite population
partitioned into subsets, in the case where items belonging to the same subset
are considered indistinguishable. Despite the generality of this problem, we
have been unable to find this result published elsewhere.Comment: 9 page
IRIS thermal balance test within ESTEC LSS
The Italian Research Interim Stage (IRIS) thermal balance test was successfully performed in the ESTEC Large Space Simulator (LSS) to qualify the thermal design and to validate the thermal mathematical model. Characteristics of the test were the complexity of the set-up required to simulate the Shuttle cargo bay and allowing IRIS mechanism actioning and operation for the first time in the new LSS facility. Details of the test are presented, and test results for IRIS and the LSS facility are described
Executive functions in insomnia disorder: a systematic review and exploratory meta-analysis
Background: Executive functions (EFs) are involved in the control of basic psychological processes such as attention and memory and also contribute to emotion regulation. Research on the presence of EFs impairments in insomnia yielded inconsistent results. Therefore, we performed a systematic review of the literature on three EFs: inhibitory control, working memory, and cognitive flexibility in adults with insomnia in order to investigate the presence and magnitude of insomnia-related EFs impairments.
Methods: PubMed, Scopus, Medline, and PsycINFO were searched. Risk of bias assessment of included studies was performed by two independent researchers. Findings were summarised using both a narrative approach and meta-analysis. Cohen’s d was calculated at 95% confidence interval (CI) as effect size of between groups differences.
Results: Twenty-eight studies comparing adult individuals with a diagnosis of insomnia and healthy controls on neuropsychological measures of EFs were included. Narrative synthesis revealed substantial variability across study findings. Factors that were primarily hypothesised to account for this variability are: objective sleep impairments and test sensitivity. Exploratory meta-analysis showed impaired performance of small to moderate magnitude in individuals with insomnia as compared to controls in reaction times, but not accuracy rates, of inhibitory control (d = −0.32, 95% CI: −0.52 to −0.13) and cognitive flexibility tasks (d = −0.30, 95% CI: −0.59 to −0.01). Performance in working memory tasks was also significantly impacted (d = −0.19, 95% CI: −0.38 to −0.00). Effects sizes were larger when insomnia was associated with objective sleep impairments, rather than normal sleep.
Conclusions: We gathered evidence supporting small to moderate deficits in EFs in individuals with insomnia. Due to the small sample size results should be considered preliminary and interpreted carefully
Magnetic resonance imaging tumor regression shrinkage patterns after neoadjuvant chemotherapy in patients with locally advanced breast cancer: correlation with tumor biological subtypes and pathological response after therapy
The objective of this study is to analyze magnetic resonance imaging shrinkage pattern of tumor regression after neoadjuvant chemotherapy and to evaluate its relationship with biological subtypes and pathological response. We reviewed the magnetic resonance imaging studies of 51 patients with single mass-enhancing lesions (performed at time 0 and at the II and last cycles of neoadjuvant chemotherapy). Tumors were classified as Luminal A, Luminal B, HER2+, and Triple Negative based on biological and immunohistochemical analysis after core needle biopsy. We classified shrinkage pattern, based on tumor regression morphology on magnetic resonance imaging at the II cycle, as concentric, nodular, and mixed. We assigned a numeric score (0: none; 1: low; 2: medium; 3: high) to the enhancement intensity decrease. Pathological response on the surgical specimen was classified as complete (grade 5), partial (grades 4-3), and non-response (grades 1-2) according to Miller and Payne system. Fisher test was used to relate shrinkage pattern with biological subtypes and final pathological response. Seventeen patients achieved complete response, 25 partial response, and 9 non-response. A total of 13 lesions showed nodular pattern, 20 concentric, and 18 mixed. We found an association between concentric pattern and HER2+ (p < 0.001) and mixed pattern and Luminal A lesions (p < 0.001). We observed a statistical significant correlation between concentric pattern and complete response (p < 0.001) and between mixed pattern and non-response (p = 0.005). Enhancement intensity decrease 3 was associated with complete response (p < 0.001). Shrinkage pattern and enhancement intensity decrease may serve as early response indicators after neoadjuvant chemotherapy. Shrinkage pattern correlates with tumor biological subtypes
The effects of chronic and acute sleep deprivation on executive functions and emotion regulation
Endometriosis: 10 keys points for MRI
Endometriosis is a chronic disease and a clinical problem in women of fertile age, with a high impact on quality of
life, work productivity and health care management.
Two imaging modalities are employed in the diagnosis and evaluation of extent of disease: ultrasound examination
with endovaginal approach and magnetic resonance imaging (MRI). MRI, thanks to its high contrast and
resolution characteristics, offers a high level of accuracy in the study of endometriosis and adenomyosis.
We illustrate here 10 key MRI points for the detection and diagnosis of endometriosis
Role of galectin-3 combined with multi-detector contrast enhanced computed tomography in predicting disease recurrence in patients with ovarian cancer
Galectin-3 (Gal-3) is an endogenous β-galactoside-binding lectin, playing an important role in the pathogenesis
of multiple malignancies. Aim of the study was to evaluate in a group of patients treated for ovarian cancer (EOC),
the role of Gal-3 combined with multi-detector contrast-enhanced computed tomography (MDCT), as predictor of
recurrence disease. Seventeen follow-up patients with recurrent ovarian cancer and 13 follow-up patients with stable
ovarian disease, who performed MDCT at one-year follow-up after cytoreductive treatment, were enrolled. Serum
Gal-3 concentrations were determined by using ELISA method. Twenty healthy controls were included in the analysis.
Two radiologist blinded to patients status, reviewed MDCT exams, recording the following signs of disease recurrence:
local tumor spread, enlarged lymph-nodes, carcinomatosis implants and metastases. We calculated the respective
threshold values of Gal- 3 identified by ROC curve analysis for each imaging findings related to disease recurrence
: lymphoadenopathies 92.45 ng/ml (AUC: 0.81, Se=91% Spe=73%), carcinomatosis 85.95 ng/ml (AUC:0.93 Se=
93.7%, Spe=92.8%), local tumor spread 99.05 (AUC:0.90, Se=100%, Spe=73% ) and metastasis 99.05ng/ml (AUC
:0,78, Se=100% , Spe=70%). A significant correlation between high Gal-3 serum levels and presence of local tumor
spread (n=11/17, p:0.001), carcinomatosis (n=16/17, p:0.00), lymphoadenopathies (n=15/17, p:0.00) and metastasis
(n=11/17, p:0.003) related with recurrence disease was observed. Patients with recurrence of ovarian cancer presents
higher Gal-3 values compared to women with stable diseases. Gal-3 combined to CECT should be used to improve
the monitoring of EOC patients
Durability of adhesion between an adhesive and post-space dentin: Push-out evaluation at one and six months.
Aims
The aim of this study was to investigate, by means of the push-out test, the bond of Prime & Bond NT at various post-space dentin locations and the influence of time of water storage on bond strength values.
Methods
30 single-rooted teeth were used for the bond strength measurement. In each tooth fiber posts were cemented with the commercial bonding system “Prime & Bond NT” in combination with the resin-based filling material “Opticore Cure Core Composite”. After 24 h (group A: 10 roots), 1 month (group B: 10 roots), and 6 months (group C: 10 roots) of water storage, the specimens were sectioned in 1 mm-thick slices for the push-out test. The data were divided into three regions (coronal/middle/apical) and analyzed using Kruskal-Wallis Test and Mann-Whitney U Test (p<0.05).
Results
The bond strength values registered did not show statistically significant differences within group A and C; within group B statistically significant differences were found between the coronal and the middle thirds and between the coronal and the apical third. The apical bond strength values did not show any statistically significant difference among the three groups (Kruskal-Wallis test); in the middle thirds a statistically significant difference was found at 6 months when compared with the 24 h and 1-month samples. In the coronal thirds was found a statistically significant difference between 1 month and 6 months. Analysis of the specimens under optical microscope revealed a prevalence of adhesive failures between fiber post and root dentin.
Conclusions
Bond strength values are lower at the apical third. Over time the adhesion of the fiberpost/luting cement/post-space dentin does not remain stable
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