Event by Event analysis of Maximum Pseudo-rapidity Gap Fluctuation in High energy Nucleus-nucleus Collisions

A study of Event by Event analysis of maximum Pseudo-rapidity Gap Fluctuation in heavy-ion collisions in terms of the scaled variance {\omega} has been carried out for relativistic AA collisions with multiplicity cut (N >10) using nuclear emulsion data at 4.5 AGeV/c. The values of scaled variance are found to be greater than zero indicating the presence of strong fluctuation of maximum rap gap values in the multiparticle production process. The event by event fluctuations are found to decrease with the increase of average multiplicity of the interactions. Experimental analysis has been compared with the results obtained from the analysis of events simulated by generating random numbers (MC-RAND events) and also by Ultra Relativistic Quantum Molecular Dynamics (UrQMD) model. UrQMD model simulated values of event by event fluctuations of maximum rapidity gap are less than the corresponding experimental values.Comment: 1 figure. arXiv admin note: substantial text overlap with arXiv:1802.0675

Iron and manganese removal from drinking water

The purpose of the present study is to find a suitable method for removal of iron and manganese from ground water, considering both local economical and environmental aspects. Ground water is a highly important source of drinking water in Romania. Ground water is naturally pure from bacteria at a 25 m depth or more. However, solved metals may occur and if the levels are too high, the water is not drinkable. Different processes, such as electrochemical and combined electrochemical-adsorption methods have been applied to determine metals content in accordance to reports of National Water Agency from Romania (ANAR). Every water source contains dissolved or particulate compounds. The concentrations of these compounds can affect health, productivity, compliance requirements, or serviceability and cannot be economically removed by conventional filtration means. In this study, we made a comparison between the electrochemical and adsorption methods (using membranes). Both methods have been used to evaluate the efficiency of iron and manganese removal at various times and temperatures. We used two membrane types: composite and cellulose, respectively. Different approaches, including lowering the initial current density and increasing the initial pH were applied. Reaction kinetics was achieved using mathematical models: Jura and Temkin

RODENT BONE EXPERIMENTAL MODELS AS A TRANSLATIONAL TOOL FOR BIOCOMPATIBILITY TESTING OF NEW BIOMATERIALS

In vivo experimental models are a key factor for the study of normal and pathologic tissue regeneration. This requires the use of advanced site-specification bone defect in small animals. Nowadays rodent models are comparable directly to the standards in large animal models and humans due to advances in ostheosynthesis techniques. This review is discussing the most available and commonly used bone defects (mandibular defects, calvarian defect and large bone defects) in laboratory animals (mice, rats) for testing various biomaterials (polymers, ceramics, cells, etc.). These site defects are the most frequently used to test innovative biological biomaterials as bone substitutes. It further describes procedures, methods, clinical exams, paraclinical exams (imagistics: CT, micro-CT, morph metric analyze, biochemistry) and histopathological results from various studies that can help attest the biomaterials performance and respect the wellbeing of animals. These models are used for the testing of biocompatibility, toxicity and osteointegration of a biomaterial at the locus of bone deficiency. Thus, in vivo bone defects are essential tools for certifying the biocompatibility, biophysical effects and biosafety in using biomaterials in regenerative medicine

Evaluation Study of Professional Burnout among Intensive Care Staff

Background and Aim: Burnout results from chronic exposure to professional stress1, which involves three dimensions: emotional exhaustion, depersonalization, and reduction of personal accomplishments2. It affects many healthcare professionals, with important physical and mental health consequences. Materials and Methods: In 2022, we carried out a study to evaluate the burnout among physicians, nurses, and auxiliary personnel, from all hospital departments. For data collection we used the Maslach Burnout Inventory questionnaire, which measures the three dimensions of the professional burnout syndrome: emotional exhaustion, depersonalization, and personal accomplishment. Results: The study included 235 employees: 34 from the Intensive Care Unit (ICU) and 201 from other departments. A percentage of 58% of the participants were nurses. The results of the analysis of the three dimensions of professional exhaustion for ICU staff reveals mean emotional exhaustion score of 13.2 ± 10.5 (low level), a mean depersonalization score of 1.9 ± 2.8 (low level), and a mean personal accomplishment score of 36.8 ± 5.0 (moderate level). Comparisons of group mean differences across hospital wards demonstrated statistically significant differences in emotional exhaustion, but not in depersonalization or personal accomplishment. No differences were identified according to the professional category of the participants. Conclusions: The study's results demonstrated the existence of a low level of exhaustion and depersonalization in ICU, but also a moderate level of reduced personal achievement. Significant differences between wards in terms of emotional exhaustion have been identified. The results do not confirm the data from the literature, where the incidence of burnout is higher among ICU staff. Further research is needed to identify the local facilitating factors that contribute to reducing the impact of stress in the ICU to support them and implement them in other hospital wards

Seasonal variation of Glycine Betaine in Plants from a Littoral Salt-Marsh in SE Spain

Supported by the Spanish Ministry of Science and Innovation (project CGL2008-00438/BOS), with contribution from the European Regional Development Fund.Boscaiu Neagu, MT.; Tifrea, M.; Donat-Torres, MP.; Mayoral García-Berlanga, O.; Llinares Palacios, JV.; Bautista Carrascosa, I.; Lidón Cerezuela, AL.... (2011). Seasonal variation of Glycine Betaine in Plants from a Littoral Salt-Marsh in SE Spain. Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca : Horticulture. 68(1):543-544. http://hdl.handle.net/10251/62931S54354468