204 research outputs found

    Mechanical and Comfort Properties of Hydroentangled Nonwovens from Comber Noil

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    Cotton fibre is one of the most important commodity fibre and is widely employed in apparels. At present, the share of natural fibres in production of nonwoven fabrics is low and employed in opt applications. The cotton fibre is conventionally converted into woven and knitted fabrics by short staple spinning methods. The comber noil is short fibre waste during production of combed cotton yarns. The aims of the current study were to employ comber noil for preparation of hydroentangled cotton nonwovens at varying water jet pressures and conveyor speeds. The effect of these parameters is studied with respect to mechanical and comfort properties of prepared fabrics. The results showed that these variables can help to manufacture fibrous assemblies with engineered properties according to required application area

    Epidural anesthesia during childbirth — retrospective analysis of maternal and neonatal results

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    Objectives: In Poland, in accordance with applicable regulations, every woman should have access to epidural anesthesia. The advantage of this type of analgesia is primarily analgesic effectiveness. The aim of the study is to identify variables related to epidural anesthesia and to verify the relationship between them and the occurrence of perinatal complications in the mother and the child.Material and methods: This was a single-center retrospective cohort study. Electronic documentation of patients of the Hospital of St. Sofia in Warsaw was used to create an anonymous retrospective database of all births in the years 2015–2020. 27,340 cases were qualified for the analysis.Results: The logistic regression model showed that the risk of episiotomy (OR = 5.539; CI = 5.169–5.935) increases more than fivefold and perineal laceration (OR = 2.190; CI= 2.036–2.356) increases twice in the case of epidural anesthesia application. There is also an increased risk of operative delivery (OR = 2.668; CI = 2.255–3.156), at the same time the risk of performing a cesarean section decreases more than fivefold (OR = 0.043; CI = 0.036–0.052).Conclusions: Epidural anesthesia affects the delivery mechanism leading to an increase in the number and intensity of additional medical procedures — episiotomy, perineal laceration, operative delivery. The rationale for the routine use of this method of anesthesia should be considered in the context of the implications for the woman’s reproductive health and research on the effectiveness of other methods of birth anesthesia should be conducted

    Plausible role of estrogens in pathogenesis, progression and therapy of lung cancer

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    Malignant neoplasms are among the most common diseases and are responsible for the majority of deaths in the developed world. In contrast to men, available data show a clear upward trend in the incidence of lung cancer in women, making it almost as prevalent as breast cancer. Women might be more susceptible to the carcinogenic effect of tobacco smoke than men. Furthermore, available data indicate a much more frequent mutation of the tumor suppressor genep53 in non-small cell lung cancer (NSCLC) female patients compared to males. Another important factor, however, might lie in the female sex hormones, whose mitogenic or carcinogenic effect is well known. Epidemiologic data show a correlation between hormone replacement therapy (HRT) or oral contraceptives (OCs), and increased mortality rates due to the increased incidence of malignant tumors, including lung cancer. Interestingly, two types of estrogen receptors have been detected in lung cancer cells: ERα and ERβ. The presence of ERα has been detected in tissues and non-small-cell lung carcinoma (NSCLC) cell lines. In contrast, overexpression of ERβ is a prognostic marker in NSCLC. Herein, we summarize the current knowledge on the role of estrogens in the etiopathogenesis of lung cancer, as well as biological, hormonal and genetic sex-related differences in this neoplasm

    Evaluating the implementation of a quality improvement process in General Practice using a realist evaluation framework

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    © 2018 John Wiley & Sons, Ltd. Rationale, aims, and objectives: Underuse of anticoagulants in atrial fibrillation is known to increase the risk of stroke and is an international problem. The National Institute for Health Care and Excellence guidance CG180 seeks to reduce atrial fibrillation related strokes through prescriptions of Non-vitamin K antagonist Oral Anticoagulants. A quality improvement programme was established by the West of England Academic Health Science Network (West of England AHSN) to implement this guidance into General Practice. A realist evaluation identified whether the quality improvement programme worked, determining how and in what circumstances. Methods: Six General Practices in 1 region, became the case study sites. Quality improvement team, doctor, and pharmacist meetings within each of the General Practices were recorded at 3 stages: initial planning, review, and final. Additionally, 15 interviews conducted with the practice leads explored experiences of the quality improvement process. Observation and interview data were analysed and compared against the initial programme theory. Results: The quality improvement resources available were used variably, with the training being valued by all. The initial programme theories were refined. In particular, local workload pressures and individual General Practitioner experiences and pre-conceived ideas were acknowledged. Where key motivators were in place, such as prior experience, the programme achieved optimal outcomes and secured a lasting quality improvement legacy. Conclusion: The employment of a quality improvement programme can deliver practice change and improvement legacy outcomes when particular mechanisms are employed and in contexts where there is a commitment to improve service

    Power and limitations of electrophoretic separations in proteomics strategies

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    Proteomics can be defined as the large-scale analysis of proteins. Due to the complexity of biological systems, it is required to concatenate various separation techniques prior to mass spectrometry. These techniques, dealing with proteins or peptides, can rely on chromatography or electrophoresis. In this review, the electrophoretic techniques are under scrutiny. Their principles are recalled, and their applications for peptide and protein separations are presented and critically discussed. In addition, the features that are specific to gel electrophoresis and that interplay with mass spectrometry (i.e., protein detection after electrophoresis, and the process leading from a gel piece to a solution of peptides) are also discussed

    Epidural analgesia: effect on labor duration and delivery mode — a single-center cohort study

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    Objectives: Parturients in labor experiencing severe pain may develop several complications, which could be avoided using various forms of labor analgesia. Researchers hold divergent opinions about the effect of epidural analgesia (EA) on labor duration and delivery mode. This paper aims to establish if EA affects the duration of the 1st and the 2nd phase of labor and the percentage of emergency Cesarean sections (CS) and instrumental delivery. Material and methods: The patients in this cohort study were recruited at St. Sophia’s Specialist Hospital in Warsaw, between 1/1/2020 and 6/1/2020. We used following inclusion criteria: patients aged 18–40 with singleton pregnancies and cephalic presentation of the fetus who gave live birth at a gestational age of 37–42 weeks to neonates with birthweight 2500–4250 g and received EA at the cervical dilation between three and six centimeters. The control group didn’t receive anesthesia. We excluded planned CS and vaginal births after CS. Data analysis was performed for all parturients and separately for multiparas and nulliparas. Results Out of 2550 deliveries, we included 1052 patients — 443 participants with EA and 609 in the control group. Patients with epidural analgesia experienced longer labor 415 vs 255 min (p < 0.01), longer 1st and 2nd stage (p < 0.01). They had a lower risk of emergency CS (OR = 0.56) (p < 0.01) but were more likely to have instrumental delivery. Conclusions: EA prolongs the first and the second stage of labor yet doesn’t affect neonatal outcomes. Moreover, the risk of emergency CS in nulliparas with EA is three times lower

    Evaluating the Performance of Fabrics for Sportswear

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    This book describes the differences between woven and knitted structures, provides an understanding of fabric behavior and the characteristics of a functional garment, and outlines the importance of garment fit and consumer perception of ..
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