bluuebunny/crossref_metadata_2025 huggingface dataset:
Building Blocks Properties and Temperature Transfer between Block Walls
Authors:   Mechanical Engineer in the Public Authority for Applied Education & Training, Specialized trainer member in the Instate of Civil Structural Training, Kuwait, Alnkhailan Tareq , Alfadhli Ali ,   MBA Certified Civil Engineer Projects Manager at Badael Modern Materials Company, Kuwait
Published: February 2024

The construction field in the Arabic gulf area is supported on the blocks martials as a primary cladding source for exterior elevations and interior walls. There are two types of blocks that are mainly used in the region. First, the solid cement black blocks which is constructed of cement, fine aggregate, fine aggregate and Portland cement. Second is the white block which Consists of Portland cement, cement ash, fine sand, aluminium powder, lime and silica. Cement black blocks act as load bearing walls, because of its high pressure and shear resistance. Add to that, the cement blocks are considered a cheap material. However, the cement black blocks considered a heavy material and overload to its holding structure. In addition, the cement black blocks are weak temperature and sound isolators, to fill the cement black blocks missing properties, the white blocks are used. The white blocks are light weigh, good temperature and sound insulators and easy to cut and build. On the other hand, the white blocks weak points are its low bearing load resistance, in which it is not possible to clad the white blocks with marble or stones. In this research paper, the gypsy blocks are introduced and studied as alternative material that have both the black and white blocks benefit and compensate for both materials’ weak points.
Improvement of the technology of steel melting and casting at continuous casting machine for the production of railway rails under the conditions of domestic metallurgical enterprises
Authors:   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Cherniatevych A. H. , Herasymenko V. H. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Molchanov L. S. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine
Published: February 2024

The post-war restoration of the mining and metallurgical complex of Ukraine is one of the most urgent tasks of developing Ukraine's industrial potential and strengthening its economic independence. Solving this task lies in the development of competitive products, which would be such both in terms of quality and in terms of the consumption of materials, resources and energy for their production. In the production of railway rails, an optimal technological scheme of high-quality steel smelting is established, which is based on the functional chain "installation for out-of-furnace processing of cast iron - melting unit - complex installation of out-of-furnace steel proofing or "bucket-furnace" installation, as well as a vacuum cleaner - machine for continuous pouring of steel". On the basis of world experience, the technological features of production and continuous pouring of railway steel are considered and analyzed. Recommendations are presented regarding technological measures that must be implemented at "KAMET-STEEL" PJSC for the effective production of railway rails in the post-war period, taking into account world experience. It is recommended to implement in steelmaking production of multi-level oxygen lances, which will allow to increase the share of scrap metal in the charge by 10-15%, and when using a gas powder lance, it is possible to achieve almost 100% of the share of scrap metal in the charge. At the stage of continuous casting, it is recommended to observe rational temperature and speed regimes of casting in accordance with world experience.
Condition and development of methods for dividing a hot metal to measured lengths
Authors:   SE ", Dobryak V. D. ,   Ukrainian Institute for the Design of Metallurgical Plants", Ugryumov D. Yu. ,   LLC "Engineering Bureau Franke International", Nykolayenko Yu. M. ,   Ukrainian State University of Science and Technology, Solovyova I. A. ,   Ukrainian State University of Science and Technology
Published: February 2024

Analysis of hot metal dividing methods into measured lengths from the point of view of providing the required quality of their ends after separation, as well as high performance methods is the aim of the work. This is especially important for the preparation of hot metal for subsequent processing, including rolling and tube rolling units, where high quality of the ends of the workpieces reduces the end cut and metal consumption ratios, and tube quality also improves the quality of rolled steel shells and pipes. Well-known literary and patent sources in the field of the separation of hot metal into measured lengths both during continuous casting of steel and in subsequent redistribution, are researched in this work. As a result of the analysis, it has been established that widely used methods for the separation of hot metal in practice cannot provide high quality pipe ends after separation, which increases the metal loss in subsequent redistribution. The most promising for the separation of hot metal into measured lengths in rolling and tube-rolling production is hot-abrasive cutting and cutting with rotary saws. They are becoming more common in production. The practical significance of the results presented in this paper are proposals for the use of progressive methods for separation of hot metal both in terms of high productivity and, above all, the required quality of the resulting ends after separation for subsequent redistribution. The development directions of the analyzed methods for the separation of hot metal are considered. A waste-free two-stage method has been proposed for dividing round hot billets into dimensional parts, which improve the quality of the ends for subsequent rolling of pipes.
Effect of microalloying of carbon steel with titanium, aluminum and nitrogen on structural peculiarities and mechanical properties
Authors:   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Filonenko N. Yu. , Babachenko О. І. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Kononenko G. A. ,   LLC "Additive laser technologies of Ukraine"
Published: February 2024

The purpose of this paper is to investigate the effect of microalloying with titanium, nitrogen, and aluminum on the set of mechanical properties of carbon steels with increased manganese and silicon content. This is due to the fact that steels with improved mechanical and operational properties are of great significance in the current situation of technology development. The studies are based on a comparison of the mechanical properties of known steel grades 2 and T, experimental industrial steel grade K and steels microalloyed with complexes – aluminum, titanium and nitrogen; aluminum and nitrogen of steel grade K. Metallographic analysis, determination of mechanical properties, chemical analysis and X-ray microanalysis are used. It is shown that complex microalloying with aluminum, titanium and nitrogen; aluminum and nitrogen of K grade steel contributes to the formation of a more fine-grained structure of pearlite and inclusions, compared to steel grades 2, T and K. In the structure of K steel, which is microalloyed with aluminum, titanium, and nitrogen, after casting, the formation of oxides, nitrides, carbonitrides, and multilayer inclusions located at the grain boundaries and in the grain volume is observed. After a full cycle of deformation and heat treatment, carbides, nitrides, and titanium carbonitrides remain in the steel structure. Whereas in steel, which is additionally microalloyed with aluminum and nitrogen on the basis of K steel, after solidification, a fine-grained structure with an increased volume fraction of pearlite is formed, the formation of inclusions of oxides, monosilicides of manganese and iron; sulfides and complex carbides in comparison with known steel grades K, 2 and T occurs. According to the research results, K2 steel is proposed, which provides a high complex of mechanical properties after accelerated cooling with an average cooling rate of 11.0°C/s from a temperature of 850±10°C and further tempering at a temperature of 550±10 °C for 2 hours due to an increase in dispersivity of the ferrite-pearlite structure, strengthened by dispersed inclusions, in comparison with K1 steel. In steel K2, factors of strength, hardness and impact toughness are 10–15% higher than the same factors for steel K1.
Analysis of modern approaches and methods for designing mechanical equipment, which can be applied in the development of a contemporary systematic approach to creating roller briquetting presses
Authors:   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Baiul K. V. ,   Ukrainian State University of Science and Technologies, Vashchenko S. V. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Khudyakov A. Yu. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Zinchenko A. V. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Semenov Yu. S. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Solodka N. O. ,   Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine,   Ukrainian State University of Science and Technologies
Published: February 2024

The objective of this work is to analyze modern design approaches and explore their potential application in developing a contemporary system approach to designing roller briquette presses. The analysis and classification of fundamental approaches in the theory and methodology of design have been conducted. It is emphasized that there is still no universally accepted approach to the design of roller presses. This lack of uniformity arises from the diverse array of structural solutions, components, and details inherent in presses. Furthermore, methods for determining briquetting process parameters and press equipment operation modes are actively evolving. The nomenclature of briquetting materials is expanding, and there are ongoing changes in equipment management systems. The design field is witnessing the active incorporation of new materials, structural details, and components. In addition to covering the fundamentals of general theory and design methodology, this work offers an overview and analysis of established methods for designing machines, technical systems, and processes. These methods are closely related to the specified theory and can be applied to enhance the system approach to designing roller presses.
Enhancement of Undergraduate Students' Consciousness about Multicultural Identity
Authors: Rashid Hina
Published: February 2024

The perspective of multicultural identity enables an individual to acknowledge and respect the prevailing diverse identities individually and socially. This particular approach provides liberty and acceptance towards unique individuals around us. As a practicing community, respect for one's originality and openness towards diverse practices need to be promoted for peace and harmony in any society. This research study aims to enhance the consciousness about multicultural identity through mixed method research, qualitative followed by quantitative research with an experimental intervention. Semantic content analysis of the curriculum of Pakistan Studies designed by HEC enlightened the researcher about existing gaps between the outline and recommended topics and sub-topics in the outline. Triangulation has been performed through focused group discussion to ensure the results and actual influence of the introduced phenomena on the Undergraduate students of B.Ed. (Hons) II (N=46). The findings clearly illustrate the significance of the pretest and posttest results of gender identity and psycho-social identity with effect sizes of r= 0.59 and 0.44, respectively. The research study suggested inculcating the phenomena of multicultural identity at the national level through policymakers and curriculum developers and practiced at the institutional level in educational settings to promote healthy and well-rounded individuals and progressive society.
A Study on Attitutes of Postgraduate Students In Educational Sciences And Teaching Departments Towards Distance Education In Terms of Various Variables
Authors: Öztürk Oğuzhan , Balaban Dağal Asude , Ramazan Müslimat Oya , Dursun Büşranur
Published: February 2024

The aim of this study is to investigate the attitudes of postgraduate students in the fields of educational science and teaching at universities in Turkiye towards distance learning, in terms of different variables, in the spring semester of the 2019-2020 academic year. Mixed method sequential explanatory design was used in the study. The sample of the study was determined using the snowball sampling method. The sample consisted of a total of 321 students, of which 238 were female (74.1%) and 83 were male (24.9%). The data of the study were collected through the Personal Information Form and the Attitude Towards Distance Education Scale. As a result of the analysis of the data obtained from the scale, it was found that the students' attitude towards distance education was undecided. As a result of the analysis, a significant difference at .05 level was found in favour of doctoral students according to the variable of postgraduate degree. A significant difference at the .05 level was found in favour of distance learning students according to whether they took distance learning before the pandemic, and in favour of distance learning students according to whether they took distance learning during the pandemic. The results of the research are important in terms of revealing the attitudes and opinions of students exposed to distance education with a rapid transition during the pandemic process.
Organic Carbon Storage and Structural-Hydraulic Properties of Ultisol under Agricultural Land Use Systems at Umuahia
Authors: C. T. Amanze , K. F. Eluagu , O. C. Nwosu , M. E. Ukabiala , P. I. Okoror , C. K. Okoroafor
Published: February 2024

The extent and pattern of interaction among organic carbon, structural and hydraulic properties of soils under varying land use systems are of great concern in the overall management of soil fertility and productivity. This study was conducted to examine the relationship among soil organic carbon storage, structural and hydraulic properties of soils under different agricultural land use systems at Umuahia, Abia State. The treatments were the four (4) land use systems (continuously cultivated arable farmland, 3 – year fallow land, oil palm plantation, and forest land) in which nine (9) replicates each of disturbed and undisturbed soil samples were randomly collected to give thirty six observational units laid out in a randomized complete block design. The soil samples were prepared and analysed in the laboratory. Analyses of variance, regression and correlation analyses were conducted on the data collected using Genstat version 14 and SPSS version 20. Results show that organic carbon had significant positive relationship with saturated hydraulic conductivity, macro porosity and total porosity but significant negative relationship with bulk density at all the land use systems. However, the influence of organic carbon on the other parameters was greatest at continuously cultivated arable land followed by the 3 – year fallow land. There is need to increase organic matter input at the continuously cultivated arable land and 3 – year fallow land through increased organic manuring and extension of the fallow period, respectively.
Insights into the application of the traveling salesman problem to logistics without considering financial risk: A bibliometric study
Authors: Larni-Fooeik Amir Mohammad , Ghasemi Nima , Mohammadi Emran
Published: February 2024

Suppliers can use different strategies to distribute their products, Among the most common complex optimization problems related to the transportation of products is the traveling salesman problem. In the traveling-salesman problem, a route is chosen that visits each node exactly once, taking into account the shortest travel time, and finally returns to the original node. In this problem, all nodes must be visited. If we consider the application of this problem in logistics, we can study the necessity of this problem in transportation means such as trucks or drones. The upcoming paper is thoroughly studied and researched considering the related articles published in the last three decades, and bibliometric analysis is used for the details of this problem. This paper aims to statistically evaluate the influence and importance of the traveling salesman on logistics without considering financial risk by presenting an analysis of the works published between 1983 and 2023. As part of our comprehensive literature review table with analysis of export, we will conduct a comprehensive review of the most relevant articles in the field from 2020 to 2023 to better understand the trend in the subject in the last few years. Data were obtained from the Web of Science and focused on metrics such as the total number of publications, citations, average citations per publication, and trending countries. Graphical and statistical analysis was performed using Excel and R-Studio. China, the USA, and Germany are the countries with the most publications. Laporte is the most prolific author with 8 publications. Much research has been done on this topic, especially in the Journal of transportation research part E-logistic with 43 articles, and the main application areas are logistics, vehicles, and drones. These data may prove useful to researchers seeking an overview of the traveling salesman problem to determine future research directions.
A qualitative study on leadership and corporate social responsibility in an emerging economy
Authors: Riaz Saba
Published: February 2024

The previous research relating to CSR and mindfulness leadership, for the purposes of this study, provides an intersection where both backgrounds come together to invite an opportunity for collaboration. The most critical factor in the implementation of CSR is the development of leaders for a sustainable global society as mindfulness should be relevant to the achievement of organizational and leadership objectives. It is here that we find the inspiration for the current study and the relevance of the research query endeavoring to discover if the framework of mindfulness leadership could prove an effective driver for CSR? For this reason, 20 in-depth interviews were conducted from the middle level managers working in an emerging economy - Pakistan. The conceptual framework of leadership theory guided this study’s investigation as it brought to the forefront certain challenges facing organizational leaders endeavoring to facilitate CSR objectives; and explored if the application of mindfulness leadership could prove an effective leadership framework for successful CSR engagement. This supporting data coupled with the study’s interview of executive leaders, across industry lines, familiar with CSR initiatives, lent to certain analytical insight that identified mindfulness leadership as a framework for organizations to facilitate the accomplishment of CSR objectives.
Profile of gene mutations responsible for M.Tuberculosis resistance to antituberculosis drugs
Authors: Ciobanu Nelly
Published: February 2024

The implementation of rapid diagnostic tests and drug susceptibility testing requires a complex approach to these methods. The pattern of gene mutations responsible for resistance to first-line antituberculosis drugs was studied in patients with resistant tuberculosis undergoing treatment in the inpatient department of the Phthisiopneumology Institute. The obtained results were compared with similar data from previous studies. It was determined that in the last 5 years the resistance to RIF is predominantly determined by the rpoB S531L mutation (82.9%), for the resistance to INH the katG S315T1 mutation (94.6%) is responsible.
The resistance profile of M. Tuberculosis in secondary cases of tuberculosis in relation to the index case
Authors: Corloteanu Andrei
Published: February 2024

The article presents data obtained as a result of the study of the concordance of the resistance profile of M. tuberculosis to first- and second-line antituberculosis drugs in secondary cases from tuberculosis households in relation to the index case. The data demonstrate concordance of the first-line antituberculosis drug resistance profile (HRES) in 63.2% of index-secondary pair cases, and in 40.7% of second-line antituberculosis drug pair index-secondary cases. The high concordance of the resistance profile to first-line and second-line antituberculosis drugs provides important evidence for the development of regimens for the treatment of an indoor contact with tuberculosis without TSM (Drug Susceptibility Test) results, until they are obtained, by using a TB treatment regimen tailored to the TSM results of the index case, also using the resistance profile of the TB-DR index case to select a preventive TB treatment regimen for infected household contacts.
The efficiency of immune modulator BIVEL for the prevention of pulmonary tuberculosis in exposed children from the multidrug-resistant tuberculosis sites
Authors: Sakhelashvili-Bil Olha
Published: February 2024

120 exposed children/adolescents (75 children and 45 adolescents) from the multi-drug resistant tuberculosis sites underwent the complex clinical radiological and immunological examination. Insignificant functional disorders of cellular response (immunoregulatory processes) caused by the prevalence of suppressor and cytotoxic reactions by 1.3 times and by the prevalence of pro-inflammatory cytokines in the regulatory system (2.0 times above the norm, TNF-α/IL 10.0. р<0.01) were revealed in the infected children/adolescents from the multi-drug resistant tuberculosis sites, while their СD3+. СD3+СD4+. СD3+СD8+ were within norm. The evident disorders of the regulatory system and cell immune system were eliminated after the completion of the autumn-spring BI-V course. The non-specific immune regulator BI-V is efficient for the prevention of multi-drug resistant tuberculosis for the exposed children/adolescents from the multi-drug tuberculosis sites. Consequently, the latent TB infection grew into the active form by 2.8 times less often in the children that took BI-V as compared to the infected children who did not take the drug.
Mortality of tuberculosis patients through associated diseases and other causes
Authors: Ustian Aurelia , Popa Vasile , Malic Alina , Niguleanu Adriana , Ivanes Igor
Published: February 2024

Purpose. Study of the mortality of tuberculosis patients by associated diseases and other causes. Materials and methods. A comparative, retrospective analysis of 222 cases of death due to tuberculosis, associated diseases and other causes in the municipality of Chisinau in two time periods was carried out: period I (2001-2003) - 157 and period II (2018-2020) - 65 cases. Results. In period II, compared to period I, there was a shift in age towards 65+ (over 1/3 of cases); approximately ½ cases of deaths were from retreatment cases; the infiltrative form of tuberculosis predominated; increased oncological pathology; the number of liver diseases has decreased, there have been cases of death after perforating gastric ulcer and COVID-19. In both periods, patients also died from other causes: In period I – septicemia – 2; road accidents -15, freezing - 8 and suicides - 2 cases; In period II- peritonitis -2, drowning - 2, frostbite - 2, drug overdose - 2 and suicide - 1 case. Conclusion. The most common associated diseases that contributed to the death of tuberculosis patients were: oncological pathology, diseases of the cardiac system, cerebral stroke.
Our experience in treating patients with bullous dystrophy complicated by pneumothorax
Authors: Kerimov Rafic , Mamedov Fuad , Bairamov Barat
Published: February 2024

Our experience in treating patients with bullous dystrophy complicated by pneumothorax. Bullous emphysema of the lung is a local alteration of lung tissue characterized by the destruction of alveolar septa and the formation of air cysts with a diameter of more than 0.5 cm (bullae), the walls of which are lined with alveolar epithelium (with lung tissue density below -860 HU). The aim of the study was to determine effective tactics and select a rational type of surgical intervention in cases of spontaneous pneumothorax where complete lung re-expansion was not achieved through drainage. It was found that men are affected 5-10 times more often than women, predominantly among patients with bronchopulmonary diseases. By draining the pleural cavity, complete lung re-expansion was achieved within 7-10 days in 273 patients (66.3%), within 11-30 days in 16 patients (3.9%), while 123 patients (29.9%) required surgical intervention for full lung re-expansion.
The pathological reactions of brachial artery during and their significance in treatment of patients with chronic obstructive pulmonary disease
Authors: Martiniuc Constantin , Pisarenco Serghei , Simionica Iurie , Procopisin Larisa
Published: February 2024

Background. The purpose of this study was to analyse the pathological reactions of brachial artery (BA) during test with reactive hyperemia (RH) for endothelial function (EF) estimation and their applicable significance in treatment of patients with chronic obstructive pulmonary disease (COPD). Material and methods. There were investigated 61 patients, mean age 47,7±5,11 years with moderate to severe forms of COPD (by GOLD criterion). Endothelial dysfunction (ED) estimation was performed non-invasive, using probe with RH with brachycephalic arteries Duplex with high resolution 8,0-10,0 MHz („Logiq S8” „General Electric”, SUA) by David S. Celermajer proposed method. ED was considered when EF index was less than 10%. Results. The analysis of obtained data revealed considerable decreasing of EF: mean EF index was 7,14±11,22%, between -15,0% and 29,4%. In 10 patients after RH test was noted pathological reaction of BA: instead of awaited endothelialdependent BA dilatation, there were observed spastic and negative reactions (in limits between 0% and −15,0%). In parallel there were visualized in a. carotis solitary and binary atherosclerotic plagues with 20-40% of vascular stenosis without any clinical manifestations. The levels of total cholesterol and LDL-C also were elevated: 7,5±2,0 mm/l и 4,7±1,8 mm/l, respectively. In all 10 patients with pathological BA reactions do not reduced mean and systolic pulmonary artery pressure after 5 weeks of treatment with perindopril (mean dose 2,9±1,5 mg once daily) or valsartan (mean dose 54,5±15,4 mg once daily). Conclusions. Thus, BA pathological reaction during RH test for ED estimation may be used like a criterion predictor of efficacity of treatment with perindopril or valsartan and for prognosis of survival in patients with severe forms of COPD.
Clinical assessment of the severity of bronchopulmonary dysplasia in children born prematurely
Authors: Sciuca Svetlana , Ceahlau Mariana , Cotoman Aliona , Selevestru Rodica
Published: February 2024

Bronchopulmonary dysplasia (BPD) – chronic lung disease, which evolves with broncho-obstructive syndrome, signs of respiratory failure, pulmonary fibrosis. Aim. Analytical case-control study included 41 children with BPD and 40 preterm children without BPD, who were clinically evaluated. Methods. Evaluation of clinical respiratory syndromes and degree of severity of bronchopulmonary dysplasia in premature infants. Results. The study demonstrated that the O2 saturation determined by pulse oximetry in premature children with BPD is reduced - 94.5±0.4%, compared to the O2 saturation of premature children without BPD (97.85±0.14%), which is significantly higher (F stat = 66.7, T stat = 8.17, p<0.0001). Children with mild grade BPD present intercostal retractions in 22.2%: 95%CI 2.8-60, in moderate grade BPD – 52.6%: 95%CI 28.9-75.6 and in severe grade DBP all the children had chest retractions. Depending on the degrees of severity, children with mild BPD present intercostal retractions in 22.2%, in moderate BPD – 73.7% and in severe BPD all children had intercostal retractions. Costal retractions, which is an indicator of respiratory insufficiency, was found in all preterm infants with severe BPD, in 52.6%: 95%CI 28.9-75.6 preterm infants with moderate BPD. Premature children with mild BPD did not present costal retractions at the stage of diagnosis confirmation (χ2 = 15.3; p<0.001). Conclusions. According to the study, bronchopulmonary dysplasia in children born prematurely is manifested by signs of respiratory insufficiency - accelerated breathing, intercostal and thoracic retractions, low values of O2 saturation. The severity of signs of respiratory impairment is dependent on the degree of bronchopulmonary dysplasia, having a clinical expression through different forms of thoracic retractions.
Clinical variability of Toxocara canis infection in children
Authors: Rotaru-Lungu Corina
Published: February 2024

Toxocariasis maintains significant relevance at present. This study focuses on presenting the diversity of clinical symptoms and the specific clinical course of toxocariasis in children. Early diagnosis becomes crucial for initiating effective antiparasitic treatment, thereby contributing to reducing the risk of recurrence and chronicity of the condition.
Chronic migraine in mature patients according to the harmful atmosphere in the family during childhood. Role of personality disorders
Authors: Moldovanu Ion , Balan Marcela-Felicia , Odobescu Stela , Rotaru Lilia , Grosu Oxana
Published: February 2024

One of the unresolved issues, discussed in international publications, is the role of Borderline Personality Disorder in migraine patients as a factor in migraine chronicity. In our study, a group of 177 patients with Migraine was analyzed in detail. We extracted patients with Borderline Personality Disorder and Migraine for comparison with patients with Migraine without Borderline Personality Disorder. The statistical difference is significant (P<0.05).
Pelvic fractures healing in osteosynthesis by external device
Authors: Kusturova Anna , Kusturov Vladimir , Paladii Irina
Published: February 2024

Aim: To analyze radiological data of pelvic fractures healing after osteosynthesis by external device, to determine the possibility of correction during the union and terms of fixation. Background. Visualization of fracture healing and knowledge of X-ray manifestations in dynamics makes it possible to control and manage the reparative process of bone tissue during union of the pelvic bones. Material and methods. The clinical and radiological picture of pelvic fractures healing and the results of treatment in 207 polytrauma patients were studied. All observations are divided by the type of fracture according to M.Tile classification. Results: The analysis of long-term treatment outcomes of pelvic trauma was carried out in 154(74,39%) patients, in the period from 1,5 to 16 years after surgery. All patients showed complete healing of the pelvic fractures and long bones injuries and their functional recovery. Conclusions: Correction of the pelvic ring injuries with an external fixation device is possible in almost all cases. X-ray dynamics provides control of the union process of the pelvic bones and allows to manage it.
Polytrauma: pelvic fractures and lesions to the urinary system
Authors: Kusturova Anna , Paladii Irina , Kusturov Vladimir , Pogonea Sergiu
Published: February 2024

Purpose. Determination of the management particularities in polytrauma patients with pelvic fractures and the urinary organs injuries. Material and methods. A retrospective study was carried out, 61 medical records of the patients with polytrauma: injuries of the pelvic ring and urinary system were analyzed. Results. Based on the study, the main tactical aspects in the conduct of patients were identified: stabilization of the general condition of patients, early fixation of the pelvic ring with external device, restoration of the integrity of the urinary bladder, drainage of the urinary bladder and pathological accumulation of urine in the pelvic cavity. Conclusions. The preventive results of the treatment of polytraumapatients with lesions of the pelvic bones and urinary system indicates that early surgical correction of the pelvic ring with an external fixation device and the restoration of the integrity of the urinary bladder is possible in almost all cases. This requires special equipment, qualified and trained personnel
Clinical characteristics and comorbidities of the patients with acute limb ischemia revascularized in emergency: a prospective study
Authors: Predenciuc Alexandru , Culiuc Vasile , Casian Dumitru
Published: February 2024

Acute ischemia is a critical condition that occurs when there is a sudden decrease in arterial blood flow to an extremity and threatens its viability. This clinical condition requires urgent intervention to prevent the development of irreversible ischemia and possible loss of a limb. Analysis of the clinical and demographic characteristics of patients with acute ischemia is crucial for the effective prevention, diagnosis and treatment of this medical emergency. An individualized treatment approach with a choice of management strategy in accordance with clinical data and comorbidities can improve treatment outcomes. This article reflects the clinical characteristics assessed in 266 patients with acute limb ischemia who underwent urgent revascularization.
Acute peripheral ischemia associated with SARS-CoV-2 infection: experience in diagnosis and treatment
Authors: Culiuc Vasile , Predenciuc Alexandru , Casian Dumitru
Published: February 2024

The study aimed to evaluate the outcomes of treatment of acute limb ischemia (ALI) in patients with novel coronavirus infection (COVID-19). The study group included 62 patients; 67 extremities: upper – 19 (28.3%), lower – 48 (71.6%). Distribution of cases according to ALI grades (Rutherford): I – 7 (10.4%), IIA – 10 (14.9%), IIB – 34 (50.7%), III – 16 (23.8%). COVID-19 was confirmed by the polymerase chain reaction test; 45 (72.5%) patients being documented to have lung injury. Fifty (80.6%) patients underwent surgical treatment on 52 limbs. Amputation rate during hospitalization (9.4±9 days) – 19.4%; mortality rate – 43.5%, being significantly influenced by the presence or absence of lung damage – 55.5% vs. 11.7% (P=0.002; χ² test). The following serum biomarkers served as potential predictors of mortality: C-reactive protein to albumin ratio, platelets to lymphocytes and fibrinogen to albumin ratio. At follow-up of 21 (25%-75%IQR 19-28) months overall and amputation-free survival rates were 56.4% and 57.1%.
The particulars of the evolution of pregnancy and birth in pregnant women with polycystic ovary syndrome
Authors: Victoria Grejdian-Voloceai
Published: February 2024

Purpose. Identifying the particularities of pregnancy and birth in pregnant women with (PCOS) polycystic ovary syndrome. Material and methods. The study was retrospective which took place during the years 2020-2022 within IMSP SCM no. 1, patients divided into 2 groups: Group I – 60 patients with polycystic ovary syndrome and pregnancy achieved. Group II – 60 patients with normal pregnancy. According to its nature, the study carried out is descriptive observational. The method of accumulating and extracting data from the medical documentation did not allow the determination of anamnesticclinical peculiarities, clinical and paraclinical investigations (laboratory and instrumental), the evolution of the pregnancy and the birth of the pregnant women included in study, including the assessment of the status of the newborn at birth. Results. From the results of the conducted study we can confirm the following particularities of the pregnancy evolution in pregnant women with PCOS, that in the II group predominantly a single pregnancy was obtained in 57 (95±0.28%) cases and a twin pregnancy in 3 (5±0.28%). The same results were obtained in group I, 42 (70±0.59%) cases of single pregnancy and 16 (26.7±0.57%) cases of twin pregnancy. Through these research results, a significant statistical difference was found in these 2 groups (p<0.05), these obtained results of the study coincide with the data from the literature, which we can confirm that the obtained data of our study are true. Conclusion. The results of the comparative study show that the pregnancy of pregnant women with PCOS is completed mainly at term - 58.5% and mainly by caesarean section - 62.26%
Systemic Approach to Reduce the Risk of Medical Errors
Authors: Pisarenco Serghei , Haidarli Ion , Pisarenco Constantin , Manea Mihaela
Published: February 2024

Background. Medical errors pose a significant problem. By learning from past mistakes, developing and applying preventive measures, we can reduce the risk of errors and their consequences in the provision of medical services. Objective of the study. Developing recommendations as systemic measures to reduce the risk of errors in providing medical care. Material and Methods. A synthesis was made of the experience in the medical and legal field, analyzing reports from internal quality audits of medical activities and relevant literature sources. Results and discussion. The risk of medical errors continues to be one of the main risks in the provision of medical care, including specialized assistance. The medical literature has accumulated a multitude of descriptions, classifications and causes of these errors. In order to reduce the risk of medical errors within the medical organization, a number of recommendations were developed in the form of planned systematic measures. The implementation of these measures led to an improvement in the quality of medical care, contributed to the prevention of medical errors, in which case the persons who committed them can be held civil and criminal liability. Conclusion. The implementation of the generalized recommendations in this study, in the form of planned systematic measures, effectively reduces the risk of medical errors, the frequency, and the severity of their medicolegal consequences.
Patient Safety: Modern Challenges and Means of Ensuring in the Medical Field
Authors: Manea Mihaela , Pisarenco Serghei , Martiniuc Constantin , Pisarenco Constantin , Nicolaev Victoria
Published: February 2024

In the article, the importance of patient safety in a medical organization is discussed. Through a literature review and interviews with healthcare workers, modern challenges and safety measures in the medical field have been explored, including safety culture, education and staff training, technology utilization, and active patient participation. The results emphasize that patient safety requires a systemic approach and constant efforts from all participants in the medical organization.
Instruments for implementing quality management in hospital institutions
Authors: Grejdean Tudor , Scutelnic Rodica , Grejdian-Voloceai Victoria
Published: February 2024

This article describes the quality of medical services that cause a lot of confusion in contemporary world. The quality of medical care is measured by customer satisfaction, depending on the specifics of the medical services offered. The paper analyzes the types of criteria used in measuring quality in hospital institutions: structure criteria, process criteria and result criteria. All these criteria are used to measure the quality of healthcare.
The aspects of the continuing formation oriented to the education in health of the medical assistants
Authors: Baroncea Angela , Grejdean Tudor
Published: February 2024

In this scientific paper there are described some aspects of the continuing formation of the medical assistants oriented to the education in health which represent a complex and exhaustive human phenomenon that includes more dimensions which interact by participating actively to the formation of the person’s personality. Hereinafter, the author confirms the important role of education for health in the formation and development of a conception and some balanced positive behaviors, starting from the youngest age with the purpose of consolidating the health, the harmonious development and strengthening of the human body as well as the adaptation to the environmental and social conditions.
Onychomycosis guideline update
Authors: Mayser Peter , Niehaus Mareike
Published: February 2024

Self-medication with antimycotic nail polishes plays an important role in Germany due to the numerous OTC drugs available and an increasing number of onychomycosis cases. Older patients in particular are more frequently affected due to slower nail growth and the possible existence of predisposing diseases [1]. But the prevalence is also increasing in children [2]. This makes guideline-based recommendations regarding diagnosis, therapy and prophylaxis of onychomycosis all the more important.
Efficacy and safety of fexofenadine in children with allergic rhinitis
Authors: Murrieta-Aguttes Margarita , Amessou Mohamed , Lheritier-Barrand Michele
Published: February 2024

Allergic rhinitis is the most common undiagnosed chronic condition in children and negatively affects sleep, school performance and leisure activities. Intranasal corticosteroids and oral antihistamines are first-line treatments. The first generation of oral antihistamines is often used in children due to the cheaper costs, despite the high frequency of adverse events, like overall cognitive and psychomotor effects, which could increase the allergic rhinitis burden. A recent review by Meltzer et al. highlighted that second-generation antihistamines are effective and well tolerated in children with allergic rhinitis and are rated superior to first-generation antihistamines.
Real-world data confirm effectiveness of a thyme-ivy extract combination
Authors: Bittner Claudia B.
Published: February 2024

From October 2019 to April 2020, the phytopharmaceutical Bronchipret® Drops, which contains a thyme-ivy extract combination (BNO 1200), was investigated in a large, practice-oriented, pharmacy-based observational study. The results show that the OTC drug quickly and sustainably alleviates bronchitis symptoms as well as severity of coughing, and reduces coughing bouts during the day and cough-associated sleep disturbances at night effectively.
Combination of probiotics, plant extracts and micronutrients shows positive effects on the integrity of the intestinal barrier
Authors: Barth Stephan , Bulferi Giorgia , Lanza Roberta , De Togni Heide , Raso Floriana
Published: February 2024

Functional disorders of the gastrointestinal tract cause symptoms that can have a significant impact on the quality of life. Maintaining an intact intestinal barrier is essential for preventing and treating these conditions. Initial studies show promising results regarding the synergistic effect of a combination of probiotic bacteria and plant extracts.
Fexofénadine : revue de son utilisation dans le traitement de l’urticaire au sein des populations pédiatrique et adulte
Authors: Murrieta-Aguttes Margarita , Amessou Mohamed
Published: February 2024

L’urticaire est un trouble inflammatoire de la peau principalement dû à l’activation de mastocytes cutanés. Les médiateurs inflammatoires et l’histamine libérés sont responsables du développement de papules et/ou d’angioœdèmes. Les directives actuelles recommandent des antihistaminiques H1 de deuxième génération non sédatifs, tels que le chlorhydrate de fexofénadine, comme traitement de première intention. Une récente revue menée par Ansotegui et al. apporte un nouvel éclairage sur l’urticaire, tant au sein de la population adulte que pédiatrique, ainsi que sur la sécurité et l’efficacité du chlorhydrate de fexofénadine comme option thérapeutique.
Designing and Solving two Mathematical Models for the Optimal Distribution of Urban Water Resources
Authors: Hadi Fazli Et al.
Published: February 2024

The lack of optimal distribution of water resources in cities with a lack of quality water resources can be a threat to the sustainability of these cities.

The present study seeks to design a method for urban water distribution among urban districts using two optimization mathematical models applied in Qom Responding to the water needs of the consumption districts was to be carried out with the least distribution costs, towards which end the first mathematical model was designed. Thus, by solving the first model, it will be clear how much water is needed to be transferred from each surface and ground resources that, while considering resources’ limitation of allocation to consumption districts, the needs of the districts are satisfied and the costs of the water company kept at the minimum.

The scarcity of high-quality water resources in Qom has rendered water allocation from these resources to all consumption districts in the city impossible. On the other hand, urban consumption districts demand the highest-quality water given their predominant fabric (residential, commercial, or industrial). Thus, distribution management must take measures to allocate high-quality water to each district depending on its fabric, to which end the second mathematical model has been designed. Hence, solving the second model would answer the question of whether, by using the mathematical model of water distribution from various resources with different qualities, it would be possible to satisfy citizens’ needs in terms of water quality (so that the quality of the allocated water is higher than the quality demanded by the district) and ensure that optimized resource allocation would take place at minimum costs for the company.
Geometric properties of the generalized Wright-Bessel functions
Authors:   Institute of Natural and Applied Science, Dicle University, Turkey, Gülfem Akın , Sevtap Sümer Eker ,   Dicle University, Turkey
Published: February 2024

In this article, we studied the geometric properties of generalized Wright-Bessel functions. For this purpose, we determined sufficient conditions for univalency, convexity, starlikeness and close-to-convexity of the generalized Wright-Bessel functions in the open unit disk.
On metric dimension of hendecagonal circular ladder $H_{n}$
Authors:   Shri Mata Vaishno Devi University, India, Malkesh Singh , Vijay Kumar Bhat ,   Shri Mata Vaishno Devi University, India
Published: February 2024

Let $\zeta=(V,E)$ be a $n$th order connected graph. If the distance vectors to the vertices in an ordered subset $G$ of vertices can uniquely identify each vertex of the graph $\zeta$, then the set $G$ is known as resolving set for the graph $\zeta$. The resolving set $G$ with smallest cardinality serves as the metric dimension of graph $\zeta$ and this resolving set serves as the metric basis for $\zeta$. In this article, two families of convex polytopes that are closely linked are demonstrated and it is found that the metric dimension is three for both the families.
Stability of a Schrödinger equation with internal fractional damping
Authors:   Djillali Liabes University, Faculty of Exact Sciences, Algeria, Ibrahim Meradjah , Naima Louhibi ,   Djillali Liabes University, Faculty of Exact Sciences, Algeria, Abbes Benaissa ,   Djillali Liabes University, Faculty of Exact Sciences, Algeria
Published: February 2024

In this paper, we are concerned with the stabilization of a linear Schrödinger equation in an n-dimensional open bounded domain under Dirichlet boundary conditions with an internal fractional damping.
We reformulate the system into an augmented model and prove the well-posedness of it by using semigroup method.
Based on a general criteria of Arendt-Batty, we show that the system is strongly stable.
By combining frequency domain method and multiplier techniques, we establish an optimal polynomial energy decay rate.