33 research outputs found
Computer Aided Education Systems in Knowledge Based Society: from SUPER-Test to MULTIMEDIA & OFFICE-Test
This paper analyzes the testing and self-testing processes for the Computer Aided Education System (CAES) SuperTest Package [14], used at the Academy of Economic Studies of Chisinau, Moldova and recently implemented at the University of Bacau, Romania and Ciprian Porumbescu College, Chisinau. We also discuss here the development of such type of CAES as MULTIMEDIA and MULTIMEDIA&OFFICE Testing Methods - the CAES software - from the Information Society and Knowledge Society point of view.Computer aided education systems, test, knowledge based society
Computer Aided Education System SuperTest. Present and Prospective
This paper analyzes the testing and self-testing process for the Computer Aided Education System (CAES) SuperTest, used at the Academy of Economic Studies of Chisinau, Moldova and recently implemented at the University of Bacau, Romania. We discuss here the future of this software, from the Information Society and Knowledge Society point of view.computer aided, education, knowledge
A review of exposure assessment methods for epidemiological studies of health effects related to industrially contaminated sites
Canagliflozin and renal outcomes in type 2 diabetes and nephropathy
BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodiumâglucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with reninâangiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years
Thermal stability, thermal expansion and grain-growth in exchange-coupled Fe-Pt-Ag-B bulk nanocomposite magnets
Individual Adaptability to Work: Scale Validation on the Romanian Population
This study aimed to validate the I-ADAPT scale to assess the individual adaptability to work within the Romanian population. Both a pilot study and a main study were conducted on a total sample of 966 Romanians. Following the application of standard scale validation procedures, the results of our study indicated that the I-ADAPT measure of work adaptability has good psychometric properties on the Romanian population. Our findings provide evidence that I-ADAPT continues to explain the unique variance in adaptability to work even if work patterns in the Covid-19 pandemic context moved more and more from a traditional to a virtual work environment. ROa I-ADAPT measure has excellent properties concerning convergent, discriminant, and criterion-related validity. One main finding was that the âPhysicalâ dimension of adaptability to work had no empirical support in the Romanian population. Moreover, our results indicate that the âinterpersonal adaptabilityâ and the âcultural adaptabilityâ dimensions cannot be empirically separated in the Romanian population. To our knowledge, this is the first validated instrument that can be used to assess the individual adaptability of Romanians in the context of work. Our study is relevant for decision-makers in Romania and such actors in other EU-member countries where Romanians represent the largest group of working-age EU citizens
Studies and Investigation about the Attitude towards Sustainable Production, Consumption and Waste Generation in Line with Circular Economy in Romania
With a rapidly growing world population and the need to address the issue of consumption of global resource and its associated environmental impacts and other social and economic issues, the demand for a responsible consumption, production and prevention of waste generation become increasingly crucial. With this broad characterization of Sustainable Consumption and Production (SCP), businesses based on circular economy should become the norm. With this goal in mind, an online questionnaire survey was performed on a nationwide scale, to explore consumersâ behaviors and attitudes. It was distributed in all four of Romaniaâs macro-regions and reached 642 respondents. The purpose of the study has been to better understand consumersâ behavior regarding sustainable consumption and production and examine whether generations play a role in responsible consumer attitudes toward the products. Three generations (X, Y, and Z) have been examined and compared. The results show that what extent those three generation agree with the environment and the benefits of reducing resource consumption, also waste generation, selective collection, recycling and reuse. However, most of them have not adopted and do not intend to adopt consumer patterns based on the circular economy. The findings provide empirical evidence and directions that could help marketers identify their consumerâs characteristics and market segments and develop consumer empowerment strategies on the Romanian market
Cardiotoxicity Associated with Chemotherapy Used in Gastrointestinal Tumours
Cardiotoxicity is a well-recognised side effect of cancer-related therapies with a great impact on outcomes and quality of life in the cancer survivor population. The pathogenesis of chemotherapy-induced cardiotoxicity in patients with gastrointestinal cancers involves various molecular mechanisms, and the combined use of various chemotherapies augments the risk of each drug used alone. In terms of cardiotoxicity diagnosis, novel biomarkers, such as troponins, brain natriuretic peptide (BNP), myeloperoxidases and miRNAs have been recently assessed. Echocardiography is a noninvasive imaging method of choice for the primary assessment of chemotherapy-treated patients to generally evaluate the cardiovascular impact of these drugs. Novel echocardiography techniques, like three-dimensional and stress echocardiography, will improve diagnosis efficacy. Cardiac magnetic resonance (CMR) can evaluate cardiac morphology, function and wall structure. Corroborated data have shown the importance of CMR in the early evaluation of patients with gastrointestinal cancers, treated with anticancer drugs, but further studies are required to improve risk stratification in these patients. In this article, we review some important aspects concerning the cardiotoxicity of antineoplastic drugs used in gastrointestinal cancers. We also discuss the mechanism of cardiotoxicity, the role of biomarkers and the imaging methods used in its detection
Palladium-Coated Submicron Electrospun Polymeric Fibers with Immobilized Uricase for Uric Acid Determination in Body Fluids
This work describes the development of a flexible uric
acid (UA)
biosensor based on palladium-coated submicrometer electrospun poly(methylmethacrylate)
(PMMA) fibers metalized with gold and attached to polyethylene terephthalate
substrate (Pd/Au/PMMA/PET). The morphological characterization conducted
by scanning electron microscopy revealed nanoscale Pd dendritic structures.
Electrochemical investigations in the absence and in the presence
of redox probes demonstrated that these Pd nanostructures are responsible
for a six-fold increase in the electroactive area and enhanced electron
transfer kinetics when compared to the gold-coated electrospun fibers.
The UA biosensor obtained by immobilizing the uricase enzyme (UrOx)
onto the Pd/Au/PMMA/PET electrode surface, allowed UA detection with
a sensitivity of 431 ÎŒA cmâ2 mMâ1 and a limit of detection of 12 ÎŒM. Investigation of the redox
reactions of hydrogen peroxide (a product of the enzymatic oxidation
of UA by UrOx) at the Pd/Au/PMMA/PET electrode demonstrated that the
working principle of the biosensor is based on the reduction of PdO
produced at the electrode surface during the spontaneous reduction
of hydrogen peroxide on Pd. This allows a biosensor operating potential
of â0.05 V (vs Ag/AgCl) with high selectivity. The UrOx/Pd/Au/PMMA/PET
biosensor was applied for UA detection in body fluids (sweat, urine,
and blood serum) with recovery values between 98 and 105%, which were
validated by high-performance liquid chromatography analysis. The
stability of the device was evaluated over a period of 3 months, retaining
78% of the initial sensitivity, and reproducibility with RSD = 4.9%
was achieved. The analytical performance of the biosensor under harsh
mechanical deformations and at physiological temperatures demonstrated
the potential applications of the device to wearable sensing platforms