132 research outputs found
The focal attention window size explains letter substitution errors in reading
Acquired Neglect Dyslexia is often associated with right-hemisphere brain damage and is mainly characterized by omissions and substitutions in reading single words. Martelli et al. proposed in 2011 that these two types of error are due to different mechanisms. Omissions should depend on neglect plus an oculomotor deficit, whilst substitutions on the difficulty with which the letters are perceptually segregated from each other (i.e., crowding phenomenon). In this study, we hypothesized that a deficit of focal attention could determine a pathological crowding effect, leading to imprecise letter identification and consequently substitution errors. In Experiment 1, three brain-damaged patients, suffering from peripheral dyslexia, mainly characterized by substitutions, underwent an assessment of error distribution in reading pseudowords and a T detection task as a function of cue size and timing, in order to measure focal attention. Each patient, when compared to a control group, showed a deficit in adjusting the attentional focus. In Experiment 2, a group of 17 right-brain-damaged patients were asked to perform the focal attention task and to read single words and pseudowords as a function of inter-letter spacing. The results allowed us to confirm a more general association between substitution-type reading errors and the performance in the focal attention task
Myers' type theorems and some related oscillation results
In this paper we study the behavior of solutions of a second order
differential equation. The existence of a zero and its localization allow us to
get some compactness results. In particular we obtain a Myers' type theorem
even in the presence of an amount of negative curvature. The technique we use
also applies to the study of spectral properties of Schroedinger operators on
complete manifolds.Comment: 16 page
Cholesterol metabolism after bariatric surgery in grade 3 obesity : differences between malabsorptive and restrictive procedures
OBJECTIVEdMalabsorptive bariatric surgery (biliopancreatic diversion and biliointestinal
bypass [BIBP]) reduces serum cholesterol levels more than restrictive surgery (adjustable gastric
banding [AGB]), and this is thought to be due to greater weight loss. Our aim was to evaluate the
changes of cholesterol metabolism induced by malabsorptive and restrictive surgery independent
of weight loss.
RESEARCH DESIGNANDMETHODSdIn a nonrandomized, self-selected, unblinded,
active-comparator, bicenter, 6-month study, glucose metabolism (blood glucose and serum insulin
levels and homeostasis model assessment of insulin resistance [HOMA-IR] index) and
cholesterol metabolism (absorption: serum campesterol and sitosterol levels; synthesis: serum
lathosterol levels; catabolism: rate of appearance and serum concentrations of serum 7-a- and
serum 27-OH-cholesterol after infusions of deuterated 7-a- and 27-OH-cholesterol in sequence)
were assessed in grade 3 obesity subjects undergoing BIBP (n = 10) and AGB (n = 10). Evaluations
were performed before and 6 months after surgery.
RESULTSdSubjects had similar values at baseline.Weight loss was similar in the two groups
of subjects, and blood glucose, insulin levels, HOMA-IR, and triglycerides decreased in a similar
way. In contrast, serumcholesterol, LDL cholesterol, non-HDL cholesterol, serum sitosterol, and
campesterol levels decreased and lathosterol levels increased only in BIBP subjects, not in AGB
subjects. A significant increase in 7-a-OH-cholesterol occurred only with BIBP; serum 27-OHcholesterol
decreased in both groups.
CONCLUSIONSdMalabsorptive surgery specifically affects cholesterol levels, independent
of weight loss and independent of glucose metabolism and insulin resistance. Decreased sterol
absorption leads to decreased cholesterol and LDL cholesterol levels, accompanied by enhanced
cholesterol synthesis and enhanced cholesterol catabolism. Compared with AGB, BIBP provides
greater cholesterol lowering
Consensus statement of the Italian society of pediatric allergy and immunology for the pragmatic management of children and adolescents with allergic or immunological diseases during the COVID-19 pandemic
The COVID-19 pandemic has surprised the entire population. The world has had to face an unprecedented pandemic. Only, Spanish flu had similar disastrous consequences. As a result, drastic measures (lockdown) have been adopted worldwide. Healthcare service has been overwhelmed by the extraordinary influx of patients, often requiring high intensity of care. Mortality has been associated with severe comorbidities, including chronic diseases. Patients with frailty were, therefore, the victim of the SARS-COV-2 infection. Allergy and asthma are the most prevalent chronic disorders in children and adolescents, so they need careful attention and, if necessary, an adaptation of their regular treatment plans. Fortunately, at present, young people are less suffering from COVID-19, both as incidence and severity. However, any age, including infancy, could be affected by the pandemic. Based on this background, the Italian Society of Pediatric Allergy and Immunology has felt it necessary to provide a Consensus Statement. This expert panel consensus document offers a rationale to help guide decision-making in the management of children and adolescents with allergic or immunologic diseases
Quality of life and treatment satisfaction in adults with Type 1 diabetes: A comparison between continuous subcutaneous insulin infusion and multiple daily injections
Aims: The aim of this case-control study was to compare quality of life (QoL) and treatment satisfaction in adults with Type 1 diabetes (T1DM) treated with either continuous subcutaneous insulin infusion (CSII) or multiple daily injections (MDI). Methods: Consecutive patients aged between 18 and 55 years, and attending diabetes clinics for a routine visit, completed the Diabetes-Specific Quality-of-Life Scale (DSQOLS), the Diabetes Treatment Satisfaction Questionnaire (DTSQ) and the SF-36 Health Survey (SF-36). Case (CSII) and control subjects (MDI) were recruited in a 1 : 2 ratio. Results: Overall, 1341 individuals were enrolled by 62 diabetes clinics; 481 were cases and 860 control subjects. Cases had a longer diabetes duration and were more likely to have eye and renal complications. Age, school education, occupation and HbA1c were similar. Of control subjects, 90% followed glargine-based MDI regimens and 10% used NPH-based MDI regimens. On multivariate analysis, after adjusting for socioeconomic and clinical characteristics, scores in the following areas of the DSQOLS were higher in cases than control subjects: diet restrictions (β = 5.96; P < 0.0001), daily hassles (β = 3.57; P = 0.01) and fears about hypoglycaemia (β = 3.88; P = 0.006). Treatment with CSII was also associated with a markedly higher DTSQ score (β = 4.13; P < 0.0001) compared with MDI. Results were similar when CSII was compared separately with glargine- or NPH-based MDI regimens. Conclusions: This large, non-randomized, case-control study suggests quality of life gains deriving from greater lifestyle flexibility, less fear of hypoglycaemia, and higher treatment satisfaction, when CSII is compared with either glargine-based or NPH-based MDI regimens. © 2008 The Authors
Identification of Shell Colour Pigments in Marine Snails Clanculus pharaonius and C. margaritarius (Trochoidea; Gastropoda)
This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication. https://creativecommons.org/publicdomain/zero/1.0/
The attached file is the published version of the article
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