76 research outputs found

    Sustainable Enterprise and Sustainable Organisation: Mapping the Research Field with Keywords Analysis

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    Purpose: The aim of the paper is to identify the key research top-ics and to contribute to mapping the research on the concepts of a sustainable enterprise and a sustainable organisation.Design/methodology/approach: Keywords analysis, considered as an element of research profiling methodology, is used to achieve the aim of the study. The research sample comprises bibliometric data retrieved from the Scopus database.Findings: The publications included in both research samples (i.e. these studying of sustainable enterprises and those related to sus-tainable organisations) focus their primary attention on the issues related to sustainability and CSR. Nevertheless, some interesting differences have been observed. Sustainable enterprise studies are found to be more oriented to strategic management perspective as well as natural environment and ecology. On the other hand sustainable organisation research shows more tendency to deal with the issues of organisational learning and innovation as well as relationships with external stakeholders.Research and practical limitations/implications: The study is an element of the wider research project aimed at mapping the research on the concepts of a sustainable enterprise and a sus-tainable organisation. As such it triangulates with other papers identifying key research topics within the field through different methods e.g. systematic literature review, research profiling and citation analysis.Originality/value: The originality of the study results from the novelty of research methodology (i.e. keywords analysis) applied to map the research on the concepts of a sustainable enterprise and a sustainable organisation.Paper type: bibliometric descriptive study

    The secondary contact zone of phylogenetic lineages of the Philaenus spumarius (Hemiptera : Aphrophoridae) : an example of incomplete allopatric speciation

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    Previous studies on the phylogeography of the meadow spittlebug Philaenus spumarius (L.) (Hemiptera: Aphrophoridae) suggest the existence of a contact zone of its main phylogenetic lineages along mountain chains in Europe and western Asia. This study presents a detailed examination of the population genetics of P. spumarius within the Carpathian Mountains. The main objective was to determine whether the populations inhabiting that area consist of individuals belonging to different genetic units and whether the observed pattern could be an example of secondary contact zone which formed after incomplete allopatric speciation. Specimens from six transects across the Carpathian arc were examined. The mitochondrial phylogeography of the meadow spittlebug in the examined area clearly shows that individuals from both main clades meet and mix there. Representatives of all three main EF1-alpha clades were also found. The present distribution of the main clades with a zone of overlap along the mountain ranges may suggest that these phylogenetic lineages form a young hybrid zone. Moreover, a limited number of individuals were shown to possess heteroplasmic mitochondrial DNA, which gives additional support to intraspecific hybridization. P. spumarius could be used in future work as an excellent model species in investigating population genetics, intraspecific hybridization, and speciation in progress

    Treatment of acromioclavicular dislocation of the shoulder in adults - press review

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    Introduction:  Acromioclavicular joint dislocation is one of the most common shoulder injuries treated in a sport‐active population. In this article we reviewed the epidemiology, symptoms, and various surgical techniques for the treatment of acromioclavicular dislocation. Material and methods: The work was based on medical articles collected in PubMed, websites and medical books. The research was conducted by looking at keywords such as: "acromioclaviculal dislocation", "treatment of acromioclaviculal dislocation ". Results: There are many methods of treating acromioclaviculal dislocation, ranging from conservative treatment to surgical treatment. Conclusions: Treating acute and chronic ACJ injuries is still a challenging task.The myriad of existing techniques is indicative for the uncertainty regarding this topic and a gold standard has not yet been determined. However, when diagnosed correctly and treated accordingly, results are overall satisfactory

    TOT and TVT as surgical methods of treatment of stress urinary incontinence in women - meta-analysis

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    Introduction: Urinary incontinence can affect up to 50% of women in the world. The most common is stress incontinence, which consists in involuntary, uncontrolled urination when the pressure in the abdominal cavity increases. Among the most commonly used methods of treating stress urinary incontinence there are treatments using a synthetic tape - TOT and TVT. In this work, both methods were compared in terms of e.g. their effectiveness, the presence of complications, the safety of both procedures and the method of performing both procedures. Material and methods: The work was based on the articles published in PubMed, medical books and websites. Results: Both TOT and TVT in the treatment of stress urinary incontinence are highly effective. Both short-term and long-term treatment results of both methods are very good and very similar. In the case of TOT, the subjective cure <1 year is 62-98%, where with TVT - 71-97%. Subjective long-term cure (>5 years) was 43-92% with TOT and 51-88% with TVT. The incidence of complications after TOT is significantly lower, but there is a higher probability of having to perform a repeat procedure to treat stress urinary incontinence. TVT has a lower risk of reoperation in >5 years (1.1%) but has a higher risk of chronic perineal pain. Conclusions: The placement of a tension-free TVT or TOT tape should be the surgery of choice for women with simple stress urinary incontinence. However, there is a higher risk of chronic perineal pain 12 months after having a tape placed behind the symphysis. The technique of passing the tapes through the obturator holes is associated with a lower risk of bladder injury and less discomfort during bladder emptying compared to the TVT technique. After TOT surgery both pain in the inner thighs and inguinal area and vaginal damage are more common than after TVT

    Cardiovascular risk in chronic kidney disease patients : intima-media thickness predicts the incidence and severity of histologically assessed medial calcification in radial arteries

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    BACKGROUND: The objective of the study was to determine the relationship between common carotid artery intima-media thickness (CCA-IMT) and histologically assessed calcification of radial artery in relation to clinical features and laboratory markers of bone and mineral metabolism, inflammation, and oxidative stress in patients with stage 5 chronic kidney disease (CKD). METHODS: The study comprised 59 patients (36 hemodialyzed, 23 predialysis). CCA-IMT was measured by ultrasonography; the biochemical parameters examined were assessed using routine laboratory methods, ELISA micro-plate immunoassays and spectrophotometry. Fragments of radial artery obtained during creation of hemodialysis access were cryosectioned and stained for calcifications using von Kossa method and alizarin red. RESULTS: Glucose, osteoprotegerin, pentraxin 3 and Framingham risk score significantly correlated with CCA-IMT. In multiple regression analysis, OPG positively predicted CCA-IMT. Radial artery calcifications were found in 34 patients who showed higher CCA-IMT (0.98 ± 0.13 vs 0.86 ± 0.14 mm; P = 0.006). Higher CCA-IMT values were also associated with more advanced calcifications. CCA-IMT and the presence of plaques in common carotid artery were positive predictors of radial artery calcifications, independent of dialysis status, Framingham risk score, CRP and Ca x Pi [OR for calcifications 2.19 (1.08-4.45) per 0.1 mm increase in CCA-IMT]. The presence of radial artery calcifications was a significant predictor of mortality, independent of dialysis status and Framingham risk score [HR 3.16 (1.03-9.64)]. CONCLUSIONS: In CKD patients, CCA-IMT examination can be used as a surrogate measure to assess the incidence and severity of arterial medial calcification which is associated with poor clinical outcome in these patients

    GdBO3 and YBO3 crystals under compression

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    [EN] High-pressure X-ray diffraction studies on nanocrystals of the GdBO3 and YBO3 rare-earth orthoborates are herein reported up to 17.4(2) and 13.4(2) GPa respectively. The subsequent determination of the room- temperature pressure-volume equations of state is presented and discussed in the context of contemporary publications which contradict the findings of this work. In particular, the isothermal bulk moduli of GdBO3 and YBO3 are found to be 170(13) and 163(13) GPa respectively, almost 50% smaller than recent findings. Our experimental results provide an accurate revision of the high-pressure compressibility behaviour of GdBO3 and YBO3 which is consistent with the known systematics in isomorphic borates and previous ab initio calculations. Finally, we discuss how experimental/analytical errors could have led to unreliable conclusions reported elsewhere.The authors thank the financial support from the Spanish Ministerio de Ciencia, Innovacion y Universidades, Spanish Research Agency (AEI), Generalitat Valenciana, and European Fund for Regional Development (ERDF, FEDER) under grants nos. FIS2017-83295-P, MAT2016-75586-C4-1/2/3-P, RTI2018-101020-BI00, PID2019-106383 GB-C41/C42/C43, RED2018-102612-T (MALTA Consolier Team), and Prometeo/2018/123 (EFIMAT). R.T. acknowledges funding from the Spanish MINECO via the Juan de la Cierva Formacion program (FJC2018-036185-I), and J.A.S. acknowledges funding from the Ramon y Cajal Fellowship Program (RYC-2015-17482). We also thank ALBA synchrotron light source for funded experiments 2016021648 and 2016021668 at the MSPD-BL04 beamline.Turnbull, R.; Errandonea, D.; Sans-Tresserras, JÁ.; Cuenca-Gotor, VP.; Vilaplana Cerda, RI.; Ibáñez, J.; Popescu, C.... (2021). GdBO3 and YBO3 crystals under compression. Journal of Alloys and Compounds. 866:1-6. https://doi.org/10.1016/j.jallcom.2021.158962S1686

    No advantage of antimicrobial prophylaxis in AML/MDS/CMML patients treated with azacitidine—a prospective multicenter study by the Polish Adult Leukemia Group

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    IntroductionInfections represent one of the most frequent causes of death of higher-risk MDS patients, as reported previously also by our group. Azacitidine Infection Risk Model (AIR), based on red blood cell (RBC) transfusion dependency, neutropenia <0.8 × 109/L, platelet count <50 × 109/L, albumin <35g/L, and ECOG performance status ≥2 has been proposed based on the retrospective data to estimate the risk of infection in azacitidine treated patients.MethodsThe prospective non-intervention study aimed to identify factors predisposing to infection, validate the AIR score, and assess the impact of antimicrobial prophylaxis on the outcome of azacitidine-treated MDS/AML and CMML patients.ResultsWe collected data on 307 patients, 57.6 % males, treated with azacitidine: AML (37.8%), MDS (55.0%), and CMML (7.1%). The median age at azacitidine treatment commencement was 71 (range, 18-95) years. 200 (65%) patients were assigned to higher risk AIR group. Antibacterial, antifungal, and antiviral prophylaxis was used in 66.0%, 29.3%, and 25.7% of patients, respectively. In total, 169 infectious episodes (IE) were recorded in 118 (38.4%) patients within the first three azacitidine cycles. In a multivariate analysis ECOG status, RBC transfusion dependency, IPSS-R score, and CRP concentration were statistically significant for infection development (p < 0.05). The occurrence of infection within the first three azacitidine cycles was significantly higher in the higher risk AIR group – 47.0% than in lower risk 22.4% (odds ratio (OR) 3.06; 95% CI 1.82-5.30, p < 0.05). Administration of antimicrobial prophylaxis did not have a significant impact on all-infection occurrence in multivariate analysis: antibacterial prophylaxis (OR 0.93; 0.41-2.05, p = 0.87), antifungal OR 1.24 (0.54-2.85) (p = 0.59), antiviral OR 1.24 (0.53-2.82) (p = 0.60).DiscussionThe AIR Model effectively discriminates infection-risk patients during azacitidine treatment. Antimicrobial prophylaxis does not decrease the infection rate
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