Statistical analysis angle values brachiocephalic-foream after epicondyle of the humerus fracture in children

Statistical analysis angle values brachiocephalic-foream after epicondyle of the humerus fracture in childrenSummaryIntroduction. The brachial epithelial fractures of the humerus are typical childhood traumas. Complex anatomy and biomechanics of the elbow cause that the treatment and evaluation of the results of the epidural fractures is still being investigated. In the literature many works have been devoted to pathomechanism, types of treatment, prevention of complications.Objective. The aim was to determine the most frequently occurring deviations from the normal state after a fracture and factors affecting the distal consequences of fracture of the superficial humeral humerus.Material and methods. 282 patients with transverse epicardial displacement of the humerus were included. During the study the total number of children hospitalized due to the injury of the elbow was 488.Results. 73.3% of patients had a deviation of the shoulder and forearm angle after fracture. Valvular deformity was reported in 13.9%. 180º (cubitus rectus) arm-and-mouth angle occurred in 17.8%. The reduction of angina in the range of valvular heart disease occurred in 17.8%. Increased elbow flexion occurred in 22.8% of cases.Conclusions. The brachial epithelial fractures of the humerus account for 57.9% of all injuries to the elbow joint in children. The deviation of the brachial-forearm angle occurred in 72.3% of cases. Most of them, because 22.3% of the lumbar deformities were observed. The elbow varus occurred in 13.9% of children. The low rate of observed deformation was the result of the accepted measurement method. At the recording of each deviation, the percentage of observed cases of elbow joint increased to 49.5%

Perspective of Obtaining Rare Earth Elements in Poland

Along with the increasing development of electric and electronic industries, the demand for rare earth elements is also growing due to their high position in many applications. In Poland, there are minerals containing REE; however, the concentration of these elements in raw materials is rather low, so they do not have a big impact on the national economy. The potential source of REE is secondary materials; among them are phosphogypsum, uranium tailings, and the waste electrical and electronic equipment (WEEE). Lanthanides as accompanying metals of uranium in Polish uranium ores were leached in the technology of uranium recovery from these resources. The recovery of REE from pregnant liquors was conducted by solvent extraction and ion exchange. Novel apparatus solutions like membrane contactors in extraction stage were tested. Different types of matrices (uranium ore, phosphorites, etc.) were used

Powrót pełnej ostrości wzroku jako główny cel leczenia pacjentów z neuropatią nerwu wzrokowego w przebiegu orbitopatii Gravesa

  Introduction: To evaluate the effectiveness of methylprednisolone (MP) and surgical treatment in achieving complete reversal of dysthyroid optic neuropathy (DON) and predictive factors of this therapy. Material and methods: The group consisted of 10 patients (18 eyes) with DON. The diagnosis of DON was based on at least two criteria from the following: (i) deterioration of visual acuity (VA< 1.0), (ii) loss of colour vision, (iii) optic disc swelling, and/or (iv) signs of DON in magnetic resonance imaging (presence of apical crowding and/or optic nerve stretching). A complete recovery of DON was defined as the normalisation of VA (VA = 1.0), normal colour vision, and reversal of optic disc swelling. A significant improvement was defined as improvement of VA of at least 0.2. The consecutive steps of treatment of DON consisted of: (i) first-line treatment — intravenous MP pulse therapy (3 × 1 g); (ii) second-line treatment — endoscopic intranasal orbital decompression of medial wall; (iii) additional treatment — additional MP therapy and/or surgical decompression. Results: A significant improvement in VA could be achieved in the majority of patients; a complete recovery was noted in 22.2%, 33.3%, and 66.7% of eyes after first-line, second-line, and additional treatment, respectively. Positive predictive factors were: younger age (p = 0.049), shorter duration of DON (p = 0.035), and a higher Graves’ orbitopathy clinical activity score (p = 0.035). Conclusions: By using combination therapy (intravenous MP pulse therapy and surgical decompression), a complete recovery can be achieved in the majority of patients with DON. (Endokrynol Pol 2016; 67 (2): 166–173)    Wstęp: Celem badania była ocena skuteczności leczenia metyloprednizolonem (MP) i leczenia chirurgicznego w uzyskaniu ustąpienia klinicznych cech neuropatii nerwu wzrokowego w przebiegu orbitopatii Gravesa (DON) oraz wskazanie czynników prognostycznych skuteczności terapii DON. Materiał i metody: Grupę badaną stanowiło 10 pacjentów (18 gałek ocznych) z DON. Rozpoznanie DON było stawiane na podstawie spełnienia co najmniej dwóch kryteriów z powyższych: a) pogorszenie ostrości wzroku (VA< 1,0), b) pogorszenie widzenia kolorów, c) obrzęk tarczy nerwu wzrokowego i/lub d) obraz typowy dla DON w badaniu rezonansu magnetycznego (stłoczenie w szczycie oczodołu i/lub naprężenie nerwu wzrokowego). Jako pełną poprawę uznano normalizację VA (VA = 1,0), prawidłowe widzenie barw i brak obrzęku tarczy nerwu wzrokowego. Kolejnymi etapami leczenia DON były: a) leczenie pierwszoplanowe — pulsy MP (3 × 1 g); b) leczenie drugoplanowe — endoskopowa wewnątrznosowa dekompresja ściany przyśrodkowej oczodołu; c) leczenie dodatkowe — podanie dodatkowych pulsów MP i/lub chirurgiczna dekompresja. Wyniki: Znaczącą poprawę VA uzyskano u większości pacjentów. Pełną poprawę stwierdzono w 22,2%, 33,3% i 66,7% gałek ocznych odpowiednio po leczeniu: pierwszoplanowym, drugoplanowym i dodatkowym. Czynnikami pozytywnie korelującymi z osiągnięciem pełnej poprawy były: młodszy wiek (p = 0,049), krótszy czas trwania DON (p = 0,035), wyższa aktywność kliniczna orbitopatii Gravesa (p = 0,035). Wnioski: Zastosowanie złożonej terapii (pulsy MP i chirurgiczna dekompresja) umożliwia osiągnięcie pełnej poprawy u większości pacjentów z DON. (Endokrynol Pol 2016; 67 (2): 166–173)

The intellectual capital and its impact on the sustainable development of the SML-sized enterprises in Poland

PURPOSE: The main goal of the article is to analyze the level of differentiation of awareness and knowledge of managers of small, medium and large enterprises within the scope of the essence and meaning of intellectual capital and the influence of its elements on the sustainable development of enterprises in Poland.DESIGN/METHODOLOGY/APPROACH: The paper exploits a data set of 1067 companies operating in Poland (employing at least 10 employees). In order to test the research hypotheses, the analysis of variations for fuzzy numbers (FANOVA) was implemented.FINDINGS: Although the majority of enterprises in Poland do not implement intellectual capital management strategies, managers are aware of the essence and significance of intellectual capital. The differentiation of the responses of managers based on the size of the enterprise was not statistically significant.PRACTICAL IMPLICATIONS: This paper recommends companies to invest in intellectual capital that according to managers’ assessment has a significant impact on their sustainability.ORIGINALITY/VALUE: This research contributes to enrich the theoretical framework for the Polish context regarding intellectual capital and it allows contrasting the evidence with other studies at national levels.peer-reviewe

Liquid Low-Level Radioactive Waste Treatment Using an Electrodialysis Process

In this work, the possibility of using electrodialysis for the treatment of liquid low-level radioactive waste was investigated. The first aim of the research was to evaluate the influence of the process parameters on the treatment of model solutions with different compositions. Subsequent experimental tests were conducted using solutions containing selected radionuclides (60Co and 137Cs), which are potential contaminants of effluents from nuclear power plants, as well as components often found in waste generated from industrial and medical radioisotope applications. The results of the experiments performed on real radioactive waste confirmed that electrodialysis was a suitable method for the treatment of such effluents because it ensured high levels of desalination and rates of decontamination. The most important parameters impacting the process were the applied voltage and electrical current. Moreover, this research shows that the application of the ED process enables the separation of non-ionic organic contaminants of LLW, which are unfavorable in further stages of waste predisposal

Sorption-Assisted Ultrafiltration Hybrid Method for Treatment of the Radioactive Aqueous Solutions

The paper presents results of studies on the possibility of using the ultrafiltration method supported by sorption on low-cost, easily accessible aluminosilicates to purify water contaminated with radionuclides. An aqueous solution contaminated with radionuclides in the form of cations at different oxidation states—Cs(I)-137, Co(II)-60 and Am(III)-241—as well as pertechnetate anions—TcO4−-99m—was treated by the proposed hybrid method. In the presented work, the influence of the important process parameters (i.e., pH, sorbent dosage, temperature and feed flow rate) on the removal efficiency of radionuclides was studied. The obtained results showed that hazardous impurities, both in the form of cations and anions, may be effectively removed from water by the application of sorption-assisted UF (SAUF) using the clay-salt slimes as a sorbent. As a final stage of the work, we treated the simulated liquid radioactive waste using the SAUF method, also showing satisfactory results in its purification efficiency

Energy Efficiency in the Industry 4.0 Era: Attributes of Teal Organisations

The rapid development of innovations in the industry 4.0 era led to new or evolved companies. At the same time, the accepted concept of carbon-free development requires building a new philosophy for the company’s management. The paper aims to analyse the key attributes of teal organisations (as a new type of a company) from the energy sector (as a core sector for carbon-free transformation). The paper summarises the core features of teal organisations and their attributes. In the paper, three hypotheses are tested: innovations and technologies are the most used attributes among teal organisations from the energy sector; organisational and corporate culture are the least used attributes among teal organisations from the energy sector; in the energy sector, the companies that have the attributes of teal organisations primarily work in countries with a high level of innovation and information technologies (as a core indicator of Industry 4.0) and economic development. For testing the hypotheses, the following methods are applied: a Friedman test, a paired-samples t-test, the principal components analysis, a correlation analysis, an ANOVA test (analysis of variance), and a regression analysis. The online survey generates the data for analysis. The object of the research is the workers from the energy sector companies from five countries (Poland, Ukraine, Georgia, Slovakia, and Romania). The findings of the statistical analysis confirm the first and second hypotheses. Companies in the energy sector mostly use innovations and technologies as the attributes of teal organisations. The regression analysis results show that an increase of 1% of patent applications leads to an increased energy efficiency of 1.29%. Additionally, the implemented features of teal organisations in the energy sector allow for improving the country’s energy efficiency, which, as a consequence, then boosts carbon-free development

Efficiency of aerobic biodegradation of beet molasses vinasse under non-controlled pH: conditions for betaine removal / Efektywność tlenowej biodegradacji buraczanego wywaru melasowego przy nieregulowanym pH podłoża: określenie warunków usunięcia betainy

Celem pracy było określenie warunków zapewniających wysoką efektywność tlenowej biodegradacji buraczanego wywaru melasowego za pomocą mieszanej kultury termo- i mezofilnych bakterii z rodzaju Bacillus w procesach okresowych prowadzonych bez regulacji pH podłoża. Główną uwagę poświęcono usunięciu betainy (głównego zanieczyszczenia buraczanego wywaru melasowego). Stanowiła ona aż 37,6% zawartości ogólnego węgla organicznego w biodegradowanym wywarze. Procesy biodegra dacji prowadzono w 5-litrowym bioreaktorze z układem mieszania w temperaturze 27-63°C, co 9°C, dla pH początkowego (pH0) równego 6,5 i 8,0. Wysoką efektywność biodegradacji wyrażoną poprzez redukcję SChZTcałk (suma SChZT (ChZT oznaczane po oddzieleniu części stałych) i teoretycznego ChZT betainy) uzyskano w procesach prowadzonych w temperaturze 27 i 36°C dla pH0 = 8,0 (redukcja ponad 77,7%) oraz 36 i 45°C dla pH0 = 6,5 (redukcja ponad 83,6%). Przyczyną wysokiej efektywności biodegradacji w wymienionych czterech procesach było usunięcie przez bakterie betainy. Maksymalny stopień redukcji SChZTcałk (85,41%), BZT5 (97,91%) i OWO (86,32%), jak również największą szybkość biodegradacji (1,17 g O2/l∙h) uzyskano w eksperymencie prowadzonym w temperaturze 36°C dla pH0 = 8,0

MOF-Based Sorbents Used for the Removal of Hg²⁺ from Aqueous Solutions via a Sorption-Assisted Microfiltration

Mercury is considered to be one of the most important chemicals of public health concern. Therefore, it is necessary to develop an effective method of removing mercury ions from aqueous solutions to protect people from exposure to this element. This paper presents research on the application of a sorption-assisted microfiltration (SAMF) hybrid process for the removal of Hg2+ from aqueous solutions. As adsorbents used in the process, the metal-organic-framework-UiO-66-type materials have been considered. The methods of synthesis of two types of metal-organic-framework (MOF) sorbents were developed: UiO-66_MAA modified with mercaptoacetic acid (MAA) and a composite of UiO-66 with cellulose. The results of the experiments performed proved that the separation of Hg2+ from water solutions conducted in such a system was effective; however, a relatively long initial contact time of reagents before filtration was required. The experimental results can be used to optimize the parameters of the SAMF process in order to obtain an effective method of Hg2+ removal from aqueous solutions