38 research outputs found
RECOVERY OF TIRES WASTE THROUGH THERMAL CRACKING
The article addresses a topic of global interest related to the recovery of rubber waste. In the context of the increase in the demand for tires worldwide, the concern for the management of used tires by introducing them into the economy is legitimate. The research proposes thermal cracking as a recycling method for used tires. Through the thermal conversion process at a temperature of 500ÂșC and a pressure of 40 bar, gaseous and liquid fuel products as well as a solid residue are obtained
FCC-DD A SOFTWARE APPROACH OF THE CASTIGLIONI METHOD FOR FCC YIELDS PREDICTION
This paper presents an improved method of determining the products yields obtained in the Fluid Catalytic Cracking (FCC) process based on the Castiglioni graphical method, using FCC-DD v1.0 a program written in the Python programming language. The advantage of using FCC-DD is the speed and accuracy of the obtained results, as well as avoidance reading of the diagrams, these being discretized and incorporated into the software
Using A Kernel P System to Solve The 3-Col Problem
The newly introduced Kernel P systems offer an unitary and
elegant way of integrating established features of existing P system variants
with new elements with potential value for formal modelling. This
paper presents a case study illustrating the expressive power and efficiency
of kernel P systems on the 3-Col problem. The use of model
checking (in particular of Spin) for formal verification of kernel P systems
is also discussed and illustrated in this case.Ministerio de Ciencia e InnovaciĂłn TIN2009â13192Junta de AndalucĂa P08âTICâ0420
Towards an Integrated Approach for Model Simulation, Property Extraction and Veri cation of P Systems
This paper presents an integrated approach for model simulation, property
extraction and formal veri cation of P systems, illustrated on a tissue P system with
active membranes solving the 3-colouring problem. The paper focuses on this problem
and reports the invariants and the properties extracted and veri ed using a series of tools
(Daikon, MeCoSim, Maple, Spin, ProB) and languages (P{Lingua, Promela, Event-B).
Appropriate tools and integration plugins, which facilitate and even automate the steps
involved in the aforementioned approach, have also been developed. The case study chosen
is complex (it involves an exponential growth of the number of states through the use of
membrane division rules) and the properties obtained are non-trivial.Ministerio de Ciencia e InnovaciĂłn TIN2009â13192Junta de AndalucĂa P08âTICâ0420
Gamma Knife radiosurgery: effect on corticotropin-secreting pituitary adenoma
Introduction: Cushing's disease (CD) is a complex endocrine disorder characterized by an increased risk of recurrence and persistence of hypercortisolism after initial transsphenoidal adenomectomy, a situation requiring alternative therapeutic measures.
Case presentation: A 21-year-old female patient was admitted for weight gain with centripetal fat distribution, transient headache, hair thinning and psycho-emotional lability. Clinical examination revealed round facies, acne, purple-red striae, hirsutism with a Ferriman-Gallwey score of 20. The hormonal profile revealed high serum cortisol (of 283.1 ng/mL, normal:70-225 ng/mL) and high ACTH (Adrenocorticotropic Hormone) levels (of 260.6 pg/mL, normal: 7.2-63.3 pg/mL). The pituitary MRI (Magnetic Resonance Imaging) examination found a 4.3/4.4/6.2mm left paramedian microadenoma. The persistence of hypercortisolism after adenomectomy required GKRS (Gamma Knife radiosurgery). Four months after radiosurgery, complete remission of the disease was achieved and it was maintained at the last evaluation. At present, the patient is 20 weeks pregnant.
Conclusions: Gamma Knife radiosurgery offers a high control rate of pituitary adenomas and a reasonable rate of remission of residual hypercortisolism after neurosurgical treatment. After surgery or GKRS, periodic monitoring is necessary for patients with CD due to the risk of pituitary insufficiency or relapse
Tuberculosis impacts multiple aspects in quality of life in a Romanian cohort of drugâsusceptible and drug resistant patients: A patientâreported outcome measures study
Background: Tuberculosis (TB), and especially its drug resistant forms, is responsible for not only significant mortality, but also considerable morbidity, still underâquantified. This study used four PatientâReported Outcome Measures (PROMS) to assess the status of persons affected by drugâsusceptible and drugâresistant TB during their TB treatment or after treatment completion, in Romania, the highest TB burden country in the EU.
Methods: People affected by TB in two different regions in Romania were included during and after treatment, following a crossâsectional design. PROMs used were SFâ36, EQâ5Dâ5L, WPAI and the appâbased audiometry screening tool âuHear.â Descriptive statistics and relevant statistical tests were used to compare groups between themselves and with the general Romanian population.
Results: Both patients with drugâsusceptible and drugâresistant TB experience, with drugâresistant patients experiencing statistically significantly more pain and hearing loss. PROMs show some improvement in the afterâtreatment group; however, compared with the general Romanian population for which data were available, all groups scored lower on all outcome measures.
Conclusion: PROMs offer the possibility of obtaining a more comprehensive view of patients' status, by involving them directly in the medical process and could guide a rehabilitation strategy
Research and Science Today Supplement No.1(3)/2012
Research and Science Today Journal is a publication founded in 2011 and it is dedicated to the students of all levels (license, master and doctoral) of faculties in the country and abroad. We want to offer the participants the opportunity to present their scientific works in the following areas: Social Sciences, Economic Sciences, Legal Sciences, Humanities, Education Sciences, Engineering, Medicine and Sport.
This journal provides students the opportunity to create and / or to improve their abilities to write scientific papers. So each appearance (two appearances per year at which we can add supplements) contains a number of papers written by students, masters and doctoral from the faculties from the country or / and abroad. The journal promotes original studies contributing to the progress of knowledge and it is motivated by the need to address issues of theory and practice in the areas mentioned above.
The Journal is a training means of the factors involved in the conceptualization, development, implementation and evaluation , aiming the formation of creative personalities who could be able to adapt through the changing conditions of life.
Journal wants to be a forum for debates disciplinaries and interdisciplinaries theoretical topics, to become a research support, to leverage this work at regional, national and international levels.
We believe that this gathering will enjoy the support from both parts of the researchers and of the practitioners, and will provide appropriate training sources held professional through the current problems
Research and Science Today Supplement No.1(3)/2012
Research and Science Today Journal is a publication founded in 2011 and it is dedicated to the students of all levels (license, master and doctoral) of faculties in the country and abroad. We want to offer the participants the opportunity to present their scientific works in the following areas: Social Sciences, Economic Sciences, Legal Sciences, Humanities, Education Sciences, Engineering, Medicine and Sport.
This journal provides students the opportunity to create and / or to improve their abilities to write scientific papers. So each appearance (two appearances per year at which we can add supplements) contains a number of papers written by students, masters and doctoral from the faculties from the country or / and abroad. The journal promotes original studies contributing to the progress of knowledge and it is motivated by the need to address issues of theory and practice in the areas mentioned above.
The Journal is a training means of the factors involved in the conceptualization, development, implementation and evaluation , aiming the formation of creative personalities who could be able to adapt through the changing conditions of life.
Journal wants to be a forum for debates disciplinaries and interdisciplinaries theoretical topics, to become a research support, to leverage this work at regional, national and international levels.
We believe that this gathering will enjoy the support from both parts of the researchers and of the practitioners, and will provide appropriate training sources held professional through the current problems
Infected pancreatic necrosis: outcomes and clinical predictors of mortality. A post hoc analysis of the MANCTRA-1 international study
: The identification of high-risk patients in the early stages of infected pancreatic necrosis (IPN) is critical, because it could help the clinicians to adopt more effective management strategies. We conducted a post hoc analysis of the MANCTRA-1 international study to assess the association between clinical risk factors and mortality among adult patients with IPN. Univariable and multivariable logistic regression models were used to identify prognostic factors of mortality. We identified 247 consecutive patients with IPN hospitalised between January 2019 and December 2020. History of uncontrolled arterial hypertension (pâ=â0.032; 95% CI 1.135-15.882; aOR 4.245), qSOFA (pâ=â0.005; 95% CI 1.359-5.879; aOR 2.828), renal failure (pâ=â0.022; 95% CI 1.138-5.442; aOR 2.489), and haemodynamic failure (pâ=â0.018; 95% CI 1.184-5.978; aOR 2.661), were identified as independent predictors of mortality in IPN patients. Cholangitis (pâ=â0.003; 95% CI 1.598-9.930; aOR 3.983), abdominal compartment syndrome (pâ=â0.032; 95% CI 1.090-6.967; aOR 2.735), and gastrointestinal/intra-abdominal bleeding (pâ=â0.009; 95% CI 1.286-5.712; aOR 2.710) were independently associated with the risk of mortality. Upfront open surgical necrosectomy was strongly associated with the risk of mortality (pâ<â0.001; 95% CI 1.912-7.442; aOR 3.772), whereas endoscopic drainage of pancreatic necrosis (pâ=â0.018; 95% CI 0.138-0.834; aOR 0.339) and enteral nutrition (pâ=â0.003; 95% CI 0.143-0.716; aOR 0.320) were found as protective factors. Organ failure, acute cholangitis, and upfront open surgical necrosectomy were the most significant predictors of mortality. Our study confirmed that, even in a subgroup of particularly ill patients such as those with IPN, upfront open surgery should be avoided as much as possible. Study protocol registered in ClinicalTrials.Gov (I.D. Number NCT04747990)
Study Regarding The Evaluation Of Certain Factors Involved In The Production Of Dento-Periodontal Traumatisms At Children, Teenagers And Young People
Aim to evaluate a number of factors involved in dento- periodontal traumatic injuries .Material and methods: 207 children, adolescents and young adults were evaluated in urban and rural areas in Iasi, aged between 8-24 years who presented symptoms related to traumatic injuries of teeth and periodontium. Patients who had complaints about traumatic injuries of teeth were assessed. Clinical and radiological findings were recorded in a specially designed form to enable the evaluation of clinical and statistical parameters of interest. Results-discussions: The batch consisted of 153 boys (73.91%) and 54 girls (26.09%). A total of 9 patients (4.35%) came from an environment with low living standards, 162 (78.26%) patients had an average level of living and in 36 (17.39%) patients recorded a high standard of living. Applying the t-student test and representing the distribution of patients according to the day of the week in which the trauma was produced, we see that there was a maximum of trauma on Mondays, Wednesdays and Saturdays, with a minimum Tuesdays and Fridays. In terms of the distribution of patients according to the time of the trauma was produced a high incidence was observed between 12.00 and 14.00. Depending of the place where the injury occurred, there were 100 patients (43.48%) where injury occurred during school hours, in 60 patients (26.09%) trauma came at home and in70 patients (30.43%) trauma occurred elsewhere (outside the disco, etc.). Depending of the mechanism of trauma we found that small ages, mixed dentition (8-14 years old â 99 patients) injuries occurred from falls, while patients with permanent dentition (15-24 years -108 patients) both suffered injuries from falls and impact. Conclusions The frequency of periodontal dental trauma is directly linked to the sport activities, the brutality of the games, road traffic accidents, and family aggression