LLukas22/scidocs huggingface dataset:
Qualitative comparison of coronary angiograms between 4 French catheters with an advanced cardiovascular injection system and 6 French catheters with manual injection.

OBJECTIVES
This study aimed to test whether advanced cardiovascular injection (ACI) via 4 French (Fr) catheters is more advantageous than manual injection with 6 Fr catheters.


BACKGROUND
For coronary angiography, proponents of contrast media ACI believe it utilizes smaller-diameter catheters when compared with manual injection, without compromising the quality of the angiogram, and has the potential to reduce the amount of contrast used and lessen the use of closure devices.


METHODS
In a prospective study, 200 consecutive patients referred for elective coronary angiography were randomized to standard 6 Fr catheters with manual injection versus 4 Fr catheters with ACI. The study's primary endpoint is the quality of the coronary angiogram. Secondary endpoints include groin complications, utilization of closure devices, and volume of contrast media. Thirty-six patients who underwent ad hoc percutaneous coronary intervention were excluded from the analysis.


RESULTS
The final analysis included 80 patients treated with 4 Fr catheters with ACI and 84 patients treated with 6 Fr catheters with manual injection. The groups had similar demographic and clinical characteristics. The quality of the angiogram was similar between groups with the exception of more left coronary sinus flush with 4 Fr catheters (3.57 ± 1.1 vs. 2.98 ± 0.9, P < 0.001) and less closure device use with 4 Fr (25 vs. 71.4%, P < 0.01) compared to 6 Fr catheters. The procedure duration, volume of contrast used, vascular complications, and time to ambulation were similar between groups (all P > 0.05).


CONCLUSIONS
4 Fr diagnostic catheters with ACI offer similar quality coronary angiograms, similar rates of vascular complications, procedure duration, contrast used, and time to ambulation, but have a significantly lesser need for closure devices compared to the 6 Fr system with manual injection.
Odontomas and Supernumerary Teeth: Is There a Common Origin?

The aim of the present work is to analyze all scientific evidence to verify whether similarities supporting a unified explanation for odontomas and supernumerary teeth exist. A literature search was first conducted for epidemiologic studies indexed by PubMed, to verify their worldwide incidence. The analysis of the literature data shows some interesting similarities between odontomas and supernumerary teeth concerning their topographic distribution and pathologic manifestations. There is also some indication of common genetic and immuno-histochemical factors. Although from a nosological point of view, odontomas and supernumeraries are classified as distinct entities, they seem to be the expression of the same pathologic process, either malformative or hamartomatous.
The Open University ’ s repository of research publications and other research outputs Measuring mathematical resilience : an application of the construct of resilience to the study of mathematics

Motivation, attitudes towards mathematics, and resilience theories are synthesized to develop a theory and instrument useful in studying malleable attributes predictive of persistence in mathematics in spite of adversity. The Mathematical Resilience Scale (MRS) is an affective instrument designed to measure student’s attitudes in studying mathematics, summarized by four correlated factors: value, struggle, growth and resilience. The MRS was developed and validated using three samples utilizing the techniques of exploratory and confirmatory factor analysis. Evidence presented supports three factors: value, struggle, and growth, and provides a new approach for encouraging greater student participation and persistence in mathematics.
Blast-induced ground vibration prediction using support vector machine

Ground vibrations induced by blasting are one of the fundamental problems in the mining industry and may cause severe damage to structures and plants nearby. Therefore, a vibration control study plays an important role in the minimization of environmental effects of blasting in mines. In this paper, an attempt has been made to predict the peak particle velocity using support vector machine (SVM) by taking into consideration of maximum charge per delay and distance between blast face to monitoring point. To investigate the suitability of this approach, the predictions by SVM have been compared with conventional vibration predictor equations. Coefficient of determination (CoD) and mean absolute error were taken as a performance measure.
Sensorless output maximization control for variable-speed wind generation system using IPMSG

This paper proposes a variable-speed wind generation system using an interior permanent-magnet synchronous generator (IPMSG). The armature current vector of the IPMSG is optimally controlled according to the generator speed in order to maximize the generated power from the wind turbine. The IPMSG is controlled by the loss-minimization control with maximum power point tracking below the base speed, which corresponds to low and medium wind speed, and the maximum energy can be captured from the wind. Above the base speed corresponding to the high wind speed region, the current- and voltage-limited maximum output control is applied, where the current vector is optimally controlled so that the output may become the maximum in consideration of the constraints of current and voltage. The proposed output maximization control is achieved without mechanical sensors such as wind speed sensor and position sensor. The control system has been developed and several experimental results show the effectiveness of the proposed wind generation system.
Hierarchical Correctness Proofs for Distributed Algorithms

We introduce the input output automa ton a simple but powerful model of computation in asynchronous distributed networks With this model we are able to construct modular hierarchical correct ness proofs for distributed algorithms We de ne this model and give an interesting example of how it can be used to construct such proofs
Incidence and Prognostic Significance of Depressive Symptoms in Peripheral Artery Disease

BACKGROUND
We compared the incidence of depression, defined by a Geriatric Depression Score (GDS) ≥6, between people with versus without peripheral artery disease (PAD). We determined whether depressive symptoms were associated with increased mortality in people with and without PAD.


METHODS AND RESULTS
Nine hundred and fifty-one PAD patients and 478 non-PAD patients were recruited from Chicago medical centers and followed prospectively. At baseline and annually, participants completed the GDS (0-15 scale, score ≥6=depression) and 6-minute walk. Cause of death was confirmed with death certificates. The prevalence of a GDS ≥6 at baseline was 186/951 (19.6%) among PAD versus 63/478 (13.2%) among non-PAD participants (P=0.003). During a mean follow-up of 2.7±1.2 years, 122/712 (17.1%) of participants with PAD versus 51/403 (12.7%) without PAD developed a GDS ≥6 (P=0.047). Adjusting for age, sex, race, comorbidities, and other confounders, PAD participants had an increased rate of developing a GDS ≥6 compared to non-PAD participants (hazard ratio=1.54 (95% CI=1.05-2.25, P=0.026). This association was not statistically significant after adjusting for 6-minute walk (P=0.258). Among PAD participants, a baseline GDS ≥6 was associated with increased all-cause mortality, adjusting for confounders (hazard ratio=1.57, 95% CI=1.12-2.21, P=0.009). This association was not significant after adjusting for 6-minute walk (P=0.224).


CONCLUSIONS
People with PAD have a higher incidence of depressive symptoms than people without PAD. In PAD, depressive symptoms are associated with increased all-cause and cardiovascular mortality. These associations are explained in part by poorer 6-minute walk among people with PAD and among depressed people with PAD, respectively.
Hippocampal neurogenesis enhancers promote forgetting of remote fear memory after hippocampal reactivation by retrieval

Forgetting of recent fear memory is promoted by treatment with memantine (MEM), which increases hippocampal neurogenesis. The approaches for treatment of post-traumatic stress disorder (PTSD) using rodent models have focused on the extinction and reconsolidation of recent, but not remote, memories. Here we show that, following prolonged re-exposure to the conditioning context, enhancers of hippocampal neurogenesis, including MEM, promote forgetting of remote contextual fear memory. However, these interventions are ineffective following shorter re-exposures. Importantly, we find that long, but not short re-exposures activate gene expression in the hippocampus and induce hippocampus-dependent reconsolidation of remote contextual fear memory. Furthermore, remote memory retrieval becomes hippocampus-dependent after the long-time recall, suggesting that remote fear memory returns to a hippocampus dependent state after the long-time recall, thereby allowing enhanced forgetting by increased hippocampal neurogenesis. Forgetting of traumatic memory may contribute to the development of PTSD treatment.
Discontinuation of statins in routine care settings: a cohort study.

BACKGROUND
Systematic data on discontinuation of statins in routine practice of medicine are limited.


OBJECTIVE
To investigate the reasons for statin discontinuation and the role of statin-related events (clinical events or symptoms believed to have been caused by statins) in routine care settings.


DESIGN
A retrospective cohort study.


SETTING
Practices affiliated with Brigham and Women's Hospital and Massachusetts General Hospital in Boston.


PATIENTS
Adults who received a statin prescription between 1 January 2000 and 31 December 2008.


MEASUREMENTS
Information on reasons for statin discontinuations was obtained from a combination of structured electronic medical record entries and analysis of electronic provider notes by validated software.


RESULTS
Statins were discontinued at least temporarily for 57 292 of 107 835 patients. Statin-related events were documented for 18 778 (17.4%) patients. Of these, 11 124 had statins discontinued at least temporarily; 6579 were rechallenged with a statin over the subsequent 12 months. Most patients who were rechallenged (92.2%) were still taking a statin 12 months after the statin-related event. Among the 2721 patients who were rechallenged with the same statin to which they had a statin-related event, 1295 were receiving the same statin 12 months later, and 996 of them were receiving the same or a higher dose.


LIMITATIONS
Statin discontinuations and statin-related events were assessed in practices affiliated with 2 academic medical centers. Utilization of secondary data could have led to missing or misinterpreted data. Natural-language-processing tools used to compensate for the low (30%) proportion of reasons for statin discontinuation documented in structured electronic medical record fields are not perfectly accurate.


CONCLUSION
Statin-related events are commonly reported and often lead to statin discontinuation. However, most patients who are rechallenged can tolerate statins long-term. This suggests that many of the statin-related events may have other causes, are tolerable, or may be specific to individual statins rather than the entire drug class.


PRIMARY FUNDING SOURCE
National Library of Medicine, Diabetes Action Research and Education Foundation, and Chinese National Key Program of Clinical Science.
Distributed Database: A Survey

The purpose of this paper is to present an introduction to Distributed Database. It contains two main parts: first one is fundamental concept in Distributed Database and second one is Different technique use in Distributed Database. Database with a production of huge data sets and their processing in real-time applications, the needs for environmental data management have grown significantly. Management Systems (DBMSs) are a ubiquitous and critical component of modern computing. The architecture and motivation for the design have also been presented in this paper. The Proposed Method is Distributed Data Mining. It is also use for to reduce the complexity of database. Keywords—Distributed Database, DBMS, Computing.
Comparison of maternal mortality between migrating population and permanent residents in Shanghai, China, 1996-2005.

OBJECTIVE
Maternal mortality ratio (MMR) in Shanghai residents has been declining in the past two decades and has reached levels comparable to developed countries. The MMR in migrating population in Shanghai remains high, however. The objectives of this study were to compare the trends of MMR between residents and migrating population in Shanghai from 1996 to 2005 and to explore the reasons for the dramatic differences in MMR between the two groups living in the same city.


DESIGN
Retrospective cohort study.


SETTING
Shanghai, China.


POPULATION
A total of 902,807 pregnancies with live births in Shanghai in the period of 1996-2005.


METHODS
We first compared the overall MMR between migrating population and permanent residents in Shanghai and examined temporal trends of MMR in the two subpopulations. We then compared the causes and maternal characteristics of maternal deaths between the two subpopulations.


MAIN OUTCOME MEASURES
Maternal mortality and cause of death.


RESULTS
A total of 902,807 live births and 243 maternal deaths were recorded in Shanghai in the period of 1996 to 2005, with an average MMR of 26.66 per 100,000 live births. The MMR in Shanghai residents declined dramatically from 22.47 per 100,000 in 1996 to 1.64 per 100,000 live births in 2005 (P < 0.01), while the MMR in migrating population was reduced only moderately from 54.68 per 100,000 live births to 48.46 per 100,000 (P > 0.05). The main causes of maternal deaths in migrating population were postpartum haemorrhage (39.9%), pregnancy-induced hypertension (9.8%), and puerperal infection (9.3%), whereas the main causes of maternal death of Shanghai residents were chronic heart and liver diseases (20.0%), postpartum haemorrhage (12.9%), and amniotic fluid embolism (12.9%). Among the maternal death cases in migrating women, 60% had elementary education or less, 22% were unemployed, 65% had no prenatal visit, 44% gave a birth at home, and 12% of the deaths occurred at home.


CONCLUSION
Lack of access to quality maternity care, especially for the effective management of postpartum haemorrhage, is the main reason for the high MMR in migrating population in Shanghai.
Information Theoretic Interpretation of Deep learning

We interpret part of the experimental results of Shwartz-Ziv and Tishby [2017]. Inspired by these results, we established a conjecture of the dynamics of the machinary of deep neural network. This conjecture can be used to explain the counterpart result by Saxe et al. [2018].
Transcranial Doppler correlation with angiography in detection of intracranial stenosis.

BACKGROUND AND PURPOSE
The purpose of this study was to evaluate the use of velocity criteria applied to transcranial Doppler (TCD) signals in the detection of stenosis of the middle cerebral (MCA), distal vertebral, and basilar arteries.


METHODS
Sixty-five patients who underwent both cerebral angiography and transcranial Doppler examinations in the workup of acute cerebral ischemia were reviewed. Angiography was performed a mean of 7 +/- 5 days (range, 1 to 28 days) after TCD. Interpretation of the angiogram was performed without input regarding the TCD findings. TCD interpretation was performed according to standard criteria.


RESULTS
When we used a mean velocity (MV) cutoff of > or = 80 cm/s in the MCA as the criterion for stenosis, 10 of 12 stenoses of any degree were detected by TCD, with 11 of 87 false-positives. Nine of 12 MCA stem (M1) stenoses were detected when a cutoff of > or = 90 cm/s was used, with 7 of 87 false-positives. When we used an MV cutoff of > or = 70 cm/s as the criterion for > or = 50% stenosis of the vertebrobasilar system, 5 of 6 stenoses were detected, with 15 of 85 false-positives. The most important confounding factor was the presence of > or = 75% stenosis of the extracranial internal carotid artery, resulting in both false-positive (from collateral flow) and false-negative (decreased volume flow from the proximal stenosis without adequate collateral flow) errors in TCD interpretation. When patients with > or = 75% stenosis of the cervical internal carotid artery were excluded from analysis, a TCD MV cutoff of > or = 80 cm/s identified 9 of 10 M1 lesions with 7 of 61 false-positives, and an MV of > or = 70 cm/s identified 3 of 4 vertebrobasilar lesions causing > or = 50% stenosis with 7 of 56 false-positives.


CONCLUSIONS
TCD may be an effective screening test for M1 stenosis when velocity criteria alone are used. TCD may less reliably detect intracranial vertebral and basilar artery stenosis.
Ontology based Semantic Similarity Measure using Concept Weighting

Semantic similarity between the documents is essential when it is extracted from free text document. Representing the presence and absence of concept in binary format may not provide perfect accuracy. Concept weighting through term frequency will increase accuracy of clustered document. Concept weight is determined using term frequency and semantic distance. Semantic similarity of a concept is derived using ontology extracted from swoogle.
Women in midlife: stress, health and life satisfaction.

Midlife is filled with challenges and unique stressors for women, which necessitate a greater understanding of the factors that influence their life satisfaction. This study examined the relationship of family strains/changes and weight to life satisfaction, as mediated by family coping, physical activity, sleep and health stress. The findings indicated that women in midlife, who experienced more stressful life changes and had higher body mass index scores, slept fewer hours and had greater health stress, which resulted in lower life satisfaction. These results have implications for family health professionals and programmes that deal with family and health problems, including sleep, weight and stress.
Home Bias and Local Contagion : Evidence from Funds of Hedge Funds

This paper analyzes hedge fund investors’ geographical preference and its implication for hedge fund performance. We document that funds of funds significantly overweight their investments in hedge funds located in the same cities. We also find that funds of funds with a stronger local bias exhibit superior performance. However, this local bias of funds of funds can adversely impact the hedge funds by creating excess comovement and local contagion. We find excessive comovement in investor flows among local hedge funds. Moreover, we provide evidence that hedge funds located in the same area are more likely to experience distress at the same time. This local contagion effect is particularly strong after local funds of funds experience large outflows, and among hedge funds with high local funds of funds ownership. Overall, our results suggest that while local funds of funds benefit from local informational advantages, their local bias creates market segmentation that could destabilize financial markets. JEL classification: G01, G11, G23
Needed Research in Teacher Mental Hygiene

1 American Educational Research Association. "Teacher Personnel." Review of Educational Research. XIII, June, 1943, 218-221. Averill, L. A. Mental Hygiene for the Classroom Teacher. Baxter, Bernice. An Objective Description of Teacher Personality in Terms of Pupil-Teacher Behavior. Bios, Peter. "Mental Hygiene and the Teaching Profession." Educational Method. XXI, 1942, 224-225. Broxson, John A. "Problem Teachers." Educational Administration and Super vision, XXIX, March, 1943, 177. Gould, A. "Mental and Physical Health of Teachers." School and Society. LIU, May 31, 1941, 710. Hart, Frank W. Teachers and Teaching. Peck, Leigh. "A Study of the Adjustment Difficulties of a Group of Women Teachers." Journal of Educational Psychology. XXVII, September, 1936, 401-416. Prescott, D. A. Emotion and the Educative Process. See Chapt. XI, "Personnel Problems in Education." Redi, Fritz. Review on Mental Hygiene in Encyclopedia of Educational Re search, 712-724. Rivlin, Harry N. "The Personality Problems of Teachers." Mental Hygiene. XXIII, 1939, 18. Rivlin, Harry N. Education for Adjustment. Symonds, Percival M. "Personality Adjustments of Women Teachers." Amer ican Journal of Orthopsychiatry. II, 1941, 14-20. Symonds, Percival M. Mental Hygiene of the School Child. 053
Interactive volumetric shadows in participating media with single-scattering

Scattering effects arising from participating media, such as smoke, haze, and fog, dramatically add to perceived realism in renderings. As shadows affect illumination throughout an environment, they significantly diminish scattering effects in umbral regions. Unlike surface shadowing, accurate volumetric shadows require simultaneously integrating illumination, scattering, and attenuation throughout the volume, which proves challenging for interactive applications. We propose a method for rendering volumetric shadows in homogeneous single scattering media that combines ray marching and shadow volume techniques, eliminating performance deficiencies inherent in both. We extend this approach to interactively render shadows from textured lights and show results under two scattering models. Our prototype uses graphics hardware to accelerate shadow volume and ray marching computations. However since our hybrid selects sample points more intelligently than brute force techniques, it could also be applied to traditional ray tracing.
Adherence to guidelines is a predictor of outcome in chronic heart failure: the MAHLER survey.

AIMS
The impact on outcome of the implementation of European guidelines for the treatment of chronic heart failure (CHF) has not been evaluated. We investigated the consequences of adherence to care by cardiologists on the rate of CHF and cardiovascular (CV) hospitalizations and time to CV hospitalization.


METHODS AND RESULTS
We constructed class adherence indicators for angiotensin-converting enzyme (ACE)-inhibitors, beta-blockers, spironolactone, diuretics, and cardiac glycosides and GAIs (GAI3 adherence to first three classes of heart failure medication, GAI5 adherence to five classes). In the study, 1410 evaluable patients (mean age 69, 69% males, New York Heart Association (NYHA) II: 64%, III: 34%, IV: 2%) were enrolled and followed up for 6 months by 150 randomly selected cardiologists/cardiology departments from six European countries (France, Germany, Italy, The Netherlands, Spain, and UK). Overall, adherence to treatment guidelines was 60 (GAI3) and 63% (GAI5) and was better for ACE-I (88%) or diuretics (82%) than for cardiac glycosides (52%), beta-blockers (58%), and spironolactone (36%). In the three tertiles of the population defined by a decreasing mean adherence score value, CHF and CV hospitalization rates were, respectively, 6.7, 9.7, and 14.7% and 11.2, 15.9, and 20.6% (P<0.002 and P<0.001, respectively). Global adherence indicator GAI3 was an independent predictor of time to CV hospitalization in a multi-variable model together with NYHA Class, history of CHF hospitalization, ischaemic aetiology, diabetes mellitus, and hypertension.


CONCLUSION
We demonstrate that adherence of physicians to treatment guidelines is a strong predictor of fewer CV hospitalizations in actual practice. There is a need to develop further quality improvement programmes in this condition.