44 research outputs found

    Number Sequences in an Integral Form with a Generalized Convolution Property and Somos-4 Hankel Determinants

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    MSC 2010: 11B83, 05A19, 33C45This paper is dealing with the Hankel determinants of the special number sequences given in an integral form. We show that these sequences satisfy a generalized convolution property and the Hankel determinants have the generalized Somos-4 property. Here, we recognize well known number sequences such as: the Fibonacci, Catalan, Motzkin and SchrÄoder sequences, like special cases

    Efeitos da reabilitação precoce no desfecho da reabilitação pós-acidente vascular encefálico (AVE) em mulheres com mais de 65 anos e sua correlação com a gravidade do deficit neurológico inicial

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    Este trabalho visa examinar os efeitos da reabilitação precoce, a curto e longo prazo, no desfecho do acidente vascular encefálico (AVE) em mulheres com mais de 65 anos; estabelecer a correlação entre o impacto da gravidade do déficit neurológico na predição dos re-sultados do tratamento de Reabilitação e, ainda, investigar a possibilidade do acompanhamento de parâmetros individuais da Medição de Independência Funcional (MIF) na predição do desfecho da reabilitação do AVE. Atualmente, o AVE é a terceira maior causa de mortalidade na população mundial, bem como a maior causa de invalidez permanente. No cenário atual, as doenças cardiovasculares e cerebrovasculares - que antes eram tidas como exclusivas da população masculina – têm afetado também as mulheres. Por outro lado, observamos uma correlação linear entre o envelhecimento e a ocorrência destas doenças. Concluímos que a implantação do método de reabilitação precoce conduz a uma aceleração significativa do processo de tratamento e recuperação após o AVE em mulheres com mais de 65 anos. Concluímos também que certos parâmetros da MIF, por apresentarem o mesmo padrão de evolução, podem ser utilizados na predição da recuperação global do paciente.This study aims at verifying the effects of short- and long-term rehabilitation on the outcome of encephalic vascular accident (EVA) in women older than 65 years; establishing the correlation between the impact of the neurological deficit severity on the prediction of the rehabilitation treatment outcome as well as investigating the possibility of the follow-up of individual parameters at the Functional Independence Measure (FIM) when predicting the EVA rehabilitation outcome. The EVA is currently the third major cause of death in the world’s population, as well as the main cause of permanent disability. In the present scenario, cardiovascular and cerebrovascular diseases, which used to be observed almost exclusively in the male population, now affect the female population as well. On the other hand, we observe a linear correlation between aging and the occurrence of these diseases. We conclude that the implementation of early rehabilitation leads to a significant acceleration in the treatment and recovery process post-EVA in women older than 65 years. We also conclude that certain FIM parameters can be used to predict the patient’s overall recovery, as they present the same evolution pattern

    Rehabilitation Protocols for Children with Dysfunctional Voiding

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    Dysfunctional voiding is a functional voiding disorder characterized by an intermittent uroflow rate due to involuntary intermittent contractions of the striated muscle of the external urethral sphincter or pelvic floor muscles (PFMs) during voiding in neurologically normal children. Symptoms include voiding difficulties as well as urgency, voiding frequency and, in some instances, urinary incontinence and/or nocturnal enuresis. Recurrent urinary tract infections, chronic constipation and/or fecal incontinence and vesicoureteral reflux (VUR) contribute to this condition. Urotherapy is the mainstay of the treatment. It starts with education and demystification and simple behavioral modifications. Specific measures include PFM exercises with various forms of biofeedback concentrating at the recognition of PFM function and their relaxation. However, the PFMs are part of the abdominal capsule and they act in coordination with lower abdominal muscles. These muscles need to be relaxed during voiding. Diaphragmatic breathing exercises were introduced to teach children abdominal muscle relaxation. Easy to learn exercises do not require any specific equipment and can be performed at all health care levels. Children from five years of age could benefit from these exercises. In children resistant to standard treatment, botulinum toxin type A application, intermittent catheterization and surgery in children with VUR are recommended

    High frequency of the R75Q CFTR variation in patients with chronic obstructive pulmonary disease

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    AbstractWe performed the complete screening of the CFTR gene in a group of 31 patients with COPD in order to investigate the impact of mutations and polymorphisms in the CFTR gene. The cumulative frequency of CFTR mutations (17.74%) was significantly higher than in our general population (P<0.0001). The R75Q was significantly overrepresented in COPD patients (8.06%; P=0.002). In all patients carrying the R75Q chronic bronchitis was a dominant symptom of COPD, and all were homozygous for the V470 allele. These findings suggest that R75Q mutation could be characteristic CFTR variant for COPD patients

    Covalent linkage of the DNA repair template to the CRISPR-Cas9 nuclease enhances homology-directed repair

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    The CRISPR-Cas9 targeted nuclease technology allows the insertion of genetic modifications with single base-pair precision. The preference of mammalian cells to repair Cas9-induced DNA double-strand breaks via error-prone end-joining pathways rather than via homology-directed repair mechanisms, however, leads to relatively low rates of precise editing from donor DNA. Here we show that spatial and temporal co-localization of the donor template and Cas9 via covalent linkage increases the correction rates up to 24-fold, and demonstrate that the effect is mainly caused by an increase of donor template concentration in the nucleus. Enhanced correction rates were observed in multiple cell types and on different genomic loci, suggesting that covalently linking the donor template to the Cas9 complex provides advantages for clinical applications where high-fidelity repair is desired

    Endocytosis and lysosomal degradation of GluA2/3 AMPARs in response to oxygen/glucose deprivation in hippocampal but not cortical neurons

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    Abstract Global cerebral ischemia results in oxygen and glucose deprivation (OGD) and consequent delayed cell death of vulnerable neurons, with hippocampal CA1 neurons more vulnerable than cortical neurons. Most AMPA receptors (AMPARs) are heteromeric complexes of subunits GluA1/GluA2 or GluA2/GluA3, and the presence of GluA2 renders AMPARs Ca2+-impermeable. In hippocampal CA1 neurons, OGD causes the synaptic expression of GluA2-lacking Ca2+-permeable AMPARs, contributing to toxic Ca2+ influx. The loss of synaptic GluA2 is caused by rapid trafficking of GluA2-containing AMPARs from the cell surface, followed by a delayed reduction in GluA2 mRNA expression. We show here that OGD causes endocytosis, lysosomal targeting and consequent degradation of GluA2- and GluA3-containing AMPARs, and that PICK1 is required for both OGD-induced GluA2 endocytosis and lysosomal sorting. Our results further suggest that GluA1-containing AMPARs resist OGD-induced endocytosis. OGD does not cause GluA2 endocytosis in cortical neurons, and we show that PICK1 binding to the endocytic adaptor AP2 is enhanced by OGD in hippocampal, but not cortical neurons. We propose that endocytosis of GluA2/3, caused by a hippocampal-specific increase in PICK1-AP2 interactions, followed by PICK1-dependent lysosomal targeting, are critical events in determining changes in AMPAR subunit composition in the response to ischaemia

    Serbia Early warning system profile.

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    ANALYSIS OF PRODUCING MILK AND DEVELOP PERSPECTIVE OF IN THE REPUBLIC OF SERBIA

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    Research in this paper work tends to show basic characteristic in producing cow and sheep milk in the Republic of Serbia in period 1998 – 2007. Paper work analyzed production cow and sheep milk in regions in Central Serbia and Vojvodina, also paper analyzed changes which held in production during researching period and participation of production cow and sheep milk in the Republic of Serbia, using base index. Paper work try to give theoretical and practical contribution for farmers who are involving directly or indirectly in milk production, to have aims in using adequate measure to develop their cattle-breeding and sheep farming, particularly in milk area
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