Application of Kolmogorov-Sinai's Metric Entropy for the Analysis of Mechanical Properties in the Bending Test of Epoxy-Rubber-Glass Composites.

The article presents an analysis of the results obtained during the three-point bending test for seven variants of epoxy rubber-glass composites manufactured according to innovative technology. Different contents of rubber recyclate (3, 5, and 7%) and different methods of distribution of the recyclate in the composite structure (1, 2, and 3 layers with a constant share of 5% of the recyclate) were used in the tested materials. To determine the stress values at which critical failures of the tested materials are initiated in the bending test, an analysis was carried out using the Kolmogorov-Sinai () metric entropy calculations.

Changes in Acute Care Pharmacist Prescribing and Laboratory Ordering over Time: CAPLET Study.

Background: In Alberta, pharmacists may obtain additional prescribing authorization (APA) and a practice identification number (PRAC-ID) for ordering laboratory tests. Pharmacists working within Alberta Health Services were mandated by the employer to attain APA by 2018, whereas laboratory ordering has been in place since 2009. Five acute care sites within the Calgary Zone had a computerized provider order entry (CPOE) system that allowed tracking of these activities.

Analysis of the Strength Properties of Epoxy-Glass Composites Modified with the Addition of Rubber Recyclate Using Kolmogorov-Sinai Metric Entropy.

This paper presents the results of investigations of the mechanical properties of epoxy-glass composites with the addition of rubber recyclate. For the purposes of the study, seven variants of materials were designed and manufactured, which differed in terms of the percentage of recyclate content (3, 5 and 7%) and the way the recyclate was distributed in the composite (one, two and three layers with a constant share of 5%). Tests of comparative mechanical properties were carried out using a static tensile test.

Analysis of the Impact of Rubber Recyclate Addition to the Matrix on the Strength Properties of Epoxy-Glass Composites.

Currently, there is a noticeable trend of modifying new materials by using additives from the recycling of harmful waste. This is to protect the environment by using waste to produce composites and at the same time to reduce the cost of their production. The article presents an analysis of the impact of the use of rubber recyclate obtained from the utilization of car tires as a sandwich layer of epoxy-glass composites and its impact on the strength parameters of the composite.

Application of Statistical Methods to Accurately Assess the Effect of Gamma Aluminum Oxide Nanopowder on the Hardness of Composite Materials with Polyester-Glass Recyclate.

Polymer composites are materials that are used in many industries. Their wide application has a direct impact on the amount of post-production and post-consumer waste. The global problem with recycling, especially of fiber-reinforced polymeric materials, has prompted research into methods of their use.

Creation of AlSi12 Alloy Coating by Centrifugal Induction Surfacing with the Addition of Low-Melting Metals.

This paper investigates the structure and mechanical characteristics of a coating based on an AlSi12 alloy, obtained by centrifugal induction surfacing as an alternative to a bronze sliding bearing. To provide for the adhesion of an aluminum layer to the inner surface of a steel bearing housing, a sublayer of low-melting metals was formed, while the formation of the main layer and the sublayer was done in a single processing cycle. The low-melting metals had higher density, which ensured that the sublayer was created at the interface with the steel bearing housing under the action of centrifugal forces.

Pharmacist Prescribing in Pediatric and Neonatal Acute Care: An Observational Study.

Objective: The intent of this project was to objectively describe the frequency of pharmacist prescribing in acute care pediatrics and neonatology and to determine the medications most often prescribed by pharmacists practicing in a jurisdiction that permits pharmacists' prescribing.

Methods: This was a subgroup analysis of a retrospective observational study using prescribing data from an electronic medical record system used in 5 acute care hospitals (1 pediatric, 4 primarily adult but with pediatric and neonatal units) within Calgary, Alberta, Canada.

Results: Considering orders for pediatric or neonatal patients only, there was a mean (SD) of 126 (226) prescriptions per pharmacist per year, with a wide range (1-1101 per year).

Hospital pharmacists understanding of available health literacy assessment tools and their perceived barriers for incorporation in patient education - a survey study.

Background: Patients with low health literacy experience difficulty in understanding their medications leading to worse health outcomes. Pharmacists need to use formal assessment tools to be able to identify these patients, so they can better tailor their patient education. The objective of the study was to characterize hospital pharmacists understanding of health literacy and their use of screening and counselling strategies before and after completion of an educational module and to identify barriers that hospital pharmacists perceive to exist that prevent them from using health literacy tools.

CAPABLE: Calgary zone usage of Additional Prescribing Authorization By pharmacists in an inpatient setting: review of the prescribing Landscape and Environment.

Background: In Alberta, Canada, pharmacists have been granted the ability to prescribe most medications independently after completing an additional authorization process. While there are data to support the use of pharmacists' prescribing in the community setting, little is known about its use in the inpatient hospital setting.

Objectives: To describe the prescribing patterns of pharmacists in an inpatient setting including the percentage of pharmacists using their prescribing authority, the care areas where prescribing occurred, and the frequency of prescribing.

Putting translational science on to a global stage.

Global collaboration in translational science promises to accelerate the discovery, development and dissemination of new medical interventions. Here, we introduce a new international collaboration of translational science organizations and highlight our initial strategy to reduce or remove bottlenecks in translation.

Three cases of alopecia following clinical islet transplantation.

Successful clinical islet allotransplantation requires control of both allo- and autoimmunity by using immunosuppressant drugs which have a number of side effects. The development of the autoimmune condition alopecia areata following successful islet transplantation is therefore unexpected. Three cases of alopecia affecting female islet transplant recipients are described.

The construct validity of the health utilities index mark 3 in assessing health status in lung transplantation.

Purpose: To assess the cross-sectional construct validity of the Health Utilities Index Mark 3 (HUI3) in lung transplantation.

Methods: Two hundred and thirteen patients (103 pre-transplant and 110 post-transplant) with mean age 53 years old (SD 13) were recruited during a randomized controlled clinical trial at the out-patient clinic in a tertiary institution. At baseline, patients self-completed measures that included the HUI3, EuroQol EQ-5D, Hospital Anxiety and Depression Scale (HADS) and socio-demographic questionnaire.

The use of patient-reported outcomes becomes standard practice in the routine clinical care of lung-heart transplant patients.

Objective: To assess the use of patient-reported outcome (PROs) measures in the routine clinical care of lung-heart transplant patients. We assessed whether the addition of PROs in routine clinical care affected the duration of the consultation and patient's and clinician's views.

Method: Consecutive lung-heart transplant patients visiting the outpatient clinic, University of Alberta Hospital, completed the Chronic Respiratory Questionnaire (CRQ) and the Health Utilities Index (HUI) on touchscreen computers.

An international survey of cytomegalovirus management practices in lung transplantation.

Background: Cytomegalovirus (CMV) is an important infection in lung transplant recipients. Center-to-center variation in preventive and treatment strategies is unknown.

Methods: An electronic survey was sent to 102 lung transplant programs registered with the International Society of Heart and Lung Transplantation and United Network for Organ Sharing.

Adverse effects of antiretrovirals in HIV-infected pregnant women.

Background: Current guidelines for the use of antiretroviral (ARV) therapy during pregnancy recommend that women be offered treatment with combination ARV therapy used in nonpregnant HIV-infected individuals. It is unclear whether the risk of ARV-related adverse drug reactions (ADRs) is increased during pregnancy.

Objective: To evaluate the frequency and severity of ADRs likely caused by ARV therapy in pregnant women who are HIV-positive.

Prenatal screening and perinatal HIV transmission in Northern Alberta, 1999-2006.

Objectives: We evaluated the effectiveness of a program that includes routine opt-out prenatal HIV screening, combination antiretroviral therapy (ART), and a multidisciplinary team in preventing perinatal HIV transmission.

Methods: A retrospective analysis was performed on HIV-infected pregnant women in northern Alberta, Canada, who delivered between January 1, 1999, and February 28, 2006.

Results: Ninety-eight women had 113 deliveries.

Monitoring of mycophenolate mofetil in orthotopic heart transplant recipients--a systematic review.

Background: Recent attention has focused on individualizing mycophenolate mofetil therapy via monitoring of mycophenolic acid (MPA) levels to overcome interpatient variability in MPA exposure when standard doses are administered. To our knowledge, no systematic review of the pharmacokinetic data in orthotopic heart transplant recipients has been published to date.

Objective: The study aimed to systematically review published studies on the MPA target concentration that is effective at preventing rejection in cardiac transplant patients.

Temperature-sensitive mutations in the Saccharomyces cerevisiae MRT4, GRC5, SLA2 and THS1 genes result in defects in mRNA turnover.

In a screen for factors involved in mRNA turnover, four temperature-sensitive yeast strains (ts1189, ts942, ts817, and ts1100) exhibited defects in the decay of several mRNAs. Complementation of the growth and mRNA decay defects, and genetic experiments, revealed that ts1189 is mutated in the previously unknown MRT4 gene, ts942 is mutated in GRC5 (encoding the L9 ribosomal protein), ts817 contains a mutation in SLA2 (encoding a membrane protein), and ts1100 contains a mutation in THS1 (encoding the threonyl-tRNA synthetase). Three of the four mutants (mrt4, grc5, and sla2) were not defective in protein synthesis, suggesting that these strains contain mutations in factors that may play a specific role in mRNA decay.

A single amino acid substitution in yeast eIF-5A results in mRNA stabilization.

Most factors known to function in mRNA turnover are not essential for cell viability. To identify essential factors, approximately 4000 temperature-sensitive yeast strains were screened for an increase in the level of the unstable CYH2 pre-mRNA. At the non-permissive temperature, five mutants exhibited decreased decay rates of the CYH2 pre-mRNA and mRNA, and the STE2, URA5 and PAB1 mRNAs.

Changes in the expression of mRNAs for myogenic factors and other muscle-specific proteins in experimental autoimmune myasthenia gravis.

The regulation of genes for acetylcholine receptor (AChR), myogenic factors and other muscle-specific proteins has been analyzed in experimental autoimmune myasthenia gravis (EAMG) and following denervation. The levels of the transcripts for the myogenic factors, MyoD1, myogenin and MRF4, were measured using Northern blot analysis. Myogenin and MRF4 transcript levels were observed to be 3.

Brain-type and muscle-type promoters of the dystrophin gene differ greatly in structure.

The promoter of the 14 kb mRNA encoding the brain isoform of dystrophin in the mouse has been isolated and partially characterized. Unlike the promoter of the muscle dystrophin isoform, it does not contain a TATA box or other consensus sequences characteristic of the proximal region upstream of the cap sites of eukaryotic genes. Yet, it has a major initiation of transcription start site located 266 bp upstream from the first ATG which is in frame with the dystrophin coding sequence.

Specificity of expression of the muscle and brain dystrophin gene promoters in muscle and brain cells.

The gene that is defective in Duchenne and Becker muscular dystrophies is expressed in the muscle and brain. However, the 5' ends of the 14 kb mRNA in these tissues are derived from two different exons, indicating the involvement of at least two promoters in the regulation of the cell-type and developmental specificities of expression of this gene. In the study presented here, we used the polymerase chain reaction and RNAase protection methods and various cell cultures to investigate the specificities of expression of these promoters.

Duchenne muscular dystrophy gene product is not identical in muscle and brain.

Duchenne muscular dystrophy (DMD) is an X-linked recessive disorder resulting in progressive degeneration of the muscle. It affects about 1 in 3,500 male children. Becker's muscular dystrophy is a less severe disease allelic to DMD.