101 research outputs found

    Niewerbalna strona Facebooka w spersonalizowanym dyskursie autopromocyjnym

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    The article refers to the content of social media such as Facebook/Twitter and to their role in the recruitment process. It discusses the significance of the nonverbal transmission of content associated with the personality and other professional capabilities of the Internet user resulting from side pane of portals such as “favourites, books, music or groups” which the user keeps on his or her web page

    Evaluating markers in selected genes for association with functional longevity of dairy cattle

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    <p>Abstract</p> <p>Background</p> <p>Longevity expressed as the number of days between birth and death is a trait of great importance for both human and animal populations. In our analysis we use dairy cattle to demonstrate how the association of Single Nucleotide Polymorphisms (SNPs) located within selected genes with longevity can be modeled. Such an approach can be extended to any genotyped population with time to endpoint information available. Our study is focused on selected genes in order to answer the question whether genes, known to be involved into the physiological determination of milk production, also influence individual's survival.</p> <p>Results</p> <p>Generally, the highest risk differences among animals with different genotypes are observed for polymorphisms located within the leptin gene. The polymorphism with a highest effect on functional longevity is LEP-R25C, for which the relative risk of culling for cows with genotype CC is 3.14 times higher than for the heterozygous animals. Apart from LEP-R25C, also FF homozygotes at the LEP-Y7F substitution attribute 3.64 times higher risk of culling than the YY homozygotes and VV homozygotes at LEP-A80V have 1.83 times higher risk of culling than AA homozygotes. Differences in risks between genotypes of polymorphisms within the other genes (the butyrophilin subfamily 1 member A1 gene, BTN1A1; the acyl-CoA:diacylglycerol acyltransferase 1 gene, DGAT1; the leptin receptor gene, LEPR; the ATP-binding cassette sub-family G member 2, ABCG2) are much smaller.</p> <p>Conclusions</p> <p>Our results indicate association between LEP and longevity and are very well supported by results of other studies related to dairy cattle. In view of the growing importance of functional traits in dairy cattle, LEP polymorphisms should be considered as markers supporting selection decisions. Furthermore, since the relationship between both LEP polymorphism and its protein product with longevity in humans is well documented, with our result we were able to demonstrate that livestock with its detailed records of family structure, genetic, and environmental factors as well as extensive trait recording can be a good model organism for research aspects related to humans.</p

    The presence of facial nerve weakness on diagnosis of a parotid gland malignant process

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    The objectives of this article are to assess the frequency and significance of facial paralysis and undiagnosed nerve infiltration in patients with parotid malignancies. 103 patients with parotid gland malignancies were treated in a single institution, the tertiary center for ENT at the University Department in Poznan between 1996 and 2006. Facial palsy at the initial presentation was found in 32 patients. The stage of the primary tumor in the examined group of 103 patients is as follows: 20—T1, 31—T2, 20—T3, 32—T4. The correlation between facial nerve function before treatment and patients’ characteristics, including the treatment methods, were analyzed. Intact facial nerve function at patient presentation was a very strong prognostic factor determining the treatment and final outcome for malignant neoplasms of parotid gland. Similarly, T stage and a high-grade malignant histology had a direct influence on the duration of patients’ survival

    XR workflows in film production : demonstration for educational purposes

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    The use of the XR production technologies has expanded recently in the film industry and heavily influenced the film production process. This paper aims therefore to explore the differences between diverse XR production workflows. The analysis provides criteria for workflow paths of traditional approach to film production and XR production flow, including workflow structure, skills, education, and equipment. Defined XR techniques are discussed for educational purposes. Its illustrations are three case studies of cinematic VR production, computer-generated VR production and Virtual Production. They are the basis for workflow comparison and discussion on artistic decisions and production challenges for film related Higher Education Institutions (HEI) students and scholars

    Antibody-based antiangiogenic and antilymphangiogenic therapies to prevent tumor growth and progression

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    Blood and lymphatic vessel formation is an indispensable factor for cancer progression and metastasis. Therefore, various strategies designed to block angiogenesis and lymphangiogenesis are being investigated in the hope to arrest and reverse tumor development. Monoclonal antibodies, owing to their unequalled diversity and specificity, might be applied to selectively inhibit the pathways that cancer cells utilize to build up a network of blood vessels and lymphatics. Among the possible targets of antibody-based therapies are proangiogenic and prolymphangiogenic growth factors from the VEGF family and the receptors to which they bind (VEGFRs). Here, we present molecular mechanisms of angiogenesis and lymphangiogenesis exploited by tumors to progress and metastasise, with examples of antibody-based therapeutic agents directed at interfering with these processes. The expanding knowledge of vascular biology helps to explain some of the problems encountered in such therapies, that arise due to the redundancy in signaling networks controlling the formation of blood and lymphatic vessels, and lead to tumor drug resistance. Nonetheless, combined treatments and treatments focused on newly discovered proangiogenic and prolymphangiogenic factors give hope that more prominent therapeutic effects might be achieved in the future

    Anatomical variations of the anterior communicating artery complex : gender relationship

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    PURPOSE: The anatomy of the anterior communicating artery complex plays a critical role in surgical treatment of anterior cerebral circulation aneurysms. A thorough description of vascular variations of the anterior communicating artery complex seems to be lacking. The aim of this study was to describe the anatomical variations of the anterior communicating artery complex. METHODS: The study group consisted of 411 subjects (52.31 % women), without any intracranial pathologies, that had undergone head computed tomography angiography. We used maximum intensity projections, volume rendering and multi planar reconstructions to study and classify the anatomical variations of the anterior communicating and anterior cerebral arteries. RESULTS: Male subjects had a significantly higher prevalence of the typical anterior communicating artery complex (59.69 vs. 46.05 %; p < 0.01). The aplastic anterior communicating artery (23.26 vs. 15.88 %; p = 0.04) and triple A2 segment of the anterior cerebral artery (1.86 vs. 0.00 %; p = 0.05) were more common in women than in men. CONCLUSION: Female subjects have a higher incidence of variations in the anterior communicating artery complex. There is a higher incidence of anterior communicating artery aplasia among women

    Ultrafiltration rate and diabetes as useful indicators of cardiovascular-related death in hemodialysis patients below 60 years of age

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    Background: The survival rate of elderly hemodialyzed (HD) patients is commonly thought to be poor. In a prospective, single center, non-interventional, observational study, the cause of all-cause and cardiovascular (CV) and heart failure (HF) mortality in this patient group were examined and compared with a younger cohort (below 60 years). Material/Methods: The study included 223 patients (90 women and 133 men) with age ranging from 34.5 to 75.0 years treated with HD. Median duration of HD was 70.0 months (24.0-120.0). Mortality data was collected over a period of six years. We divided patients into groups: <60 (n=123), ≥60 years (n=100), and with (n=33) and without DM type 2 (n=190). Results: During a six-year follow-up, 100 patients (44.8%) died, including 83 (37.2%) patients who died due to CV reasons. Median follow-up was 2015.0 days (946.0-2463.0) with the median time to death of 1166.0 days (654.5-1631.0). The factors negatively affecting patients’ survival in univariate Cox regression analysis included for all-cause mortality were: inter-dialytic weight gain (IDWG) (hazard ratio [HR]=1.60; p=0.01), ultrafiltration (UF) rate (HR=3.63; p=0.012) for group <60 years; for CV death: UF rate (HR=4.20; p=0.03), DM (HR=5.11; p=0.002) for group <60 years; for HF death: mellitus type 2 (DM) (HR=2.93; p=0.027) for group ≥60 years). In a multivariate Cox regression analysis for patients <60 years, the UF rate was the only independent predictor of all-cause mortality (HR 3.63 (1.34-9.67); p=0.011). Both DM (HR 4.91 (1.71-14.10); p=0.003) and UF rate (HR 3.62 (1.04-12.61); p=0.044) were independent predictors of CV-related mortality in patients <60 years. Conclusions: The UF rate can be a simple, useful indicator of higher long-term all-cause and CV mortality in HD patients <60 years of age. Also, DM may be a predictor of CV–related mortality in younger HD patients
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