171 research outputs found

    Hypnobirthing Training for First-Time Mothers: Pain, Anxiety and Postpartum Wellbeing

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    Hina Yaqoob,1 Xing-Da Ju,1,2 Samrah Jamshaid1 1School of Psychology, Northeast Normal University, Changchun, Jilin, People’s Republic of China; 2Jilin Provincial Key Laboratory of Cognitive Neuroscience and Brain Development, Northeast Normal University, Changchun, Jilin, People’s Republic of ChinaCorrespondence: Xing-Da Ju, School of Psychology, Northeast Normal University, No. 5268, Renmin Street, Changchun, Jilin, 130024, People’s Republic of China, Email [email protected]: Childbirth represents a significant life event, bringing about both physical and emotional transformations in a woman’s life. Among other psychological aspects associated with childbirth, labor pain, death anxiety, and postpartum depression have garnered significant attention in the field of maternal and reproductive health. This study is intended to evaluate how the effectiveness of hypnobirthing training alleviates labor pain, mitigates death anxiety enhances postpartum well-being reduces labor hours, and how anxiety exacerbates the duration of labor.Methods: Data were collected from (N = 50) young and middle-aged postpartum women in the outpatient obstetrics and gynecology departments of the Civil Hospital, Waseer Gynecology Hospital and Basic Health Unit Jalal Ballagan in Gujranwala, Pakistan, by using the convenience sampling technique. Out of 50, women were divided into a control (N = 25) and an experimental group (N = 25). They were recruited during their 33 weeks of pregnancy until childbirth for hypnobirthing training. Numerical Pain Rating Scale (NPRS), Templer Death Anxiety Scale (TDAS), and Edinburgh Postnatal Depression Scale (EPDS) were used to collect participants’ responses.Results: Findings proved hypnobirthing training as a catalyst in significantly reducing labor pain, death anxiety, and postpartum depression. Furthermore, the analysis indicated that death anxiety exacerbates the labor duration hours and hypnobirthing decreases the labor hours in the experimental group of women.Conclusion: It sheds light on the effectiveness of hypnobirthing training to enhance the birthing process. Findings underscore the significance of collaboration between obstetricians, psychologists, and mental health professionals to develop integrated care plans that address both physical and psychological aspects of childbirth.Keywords: labor pain, death anxiety, postpartum depression, hypnobirthing training, vaginal delivery, first time mother

    Graphene plasmonics

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    Two rich and vibrant fields of investigation, graphene physics and plasmonics, strongly overlap. Not only does graphene possess intrinsic plasmons that are tunable and adjustable, but a combination of graphene with noble-metal nanostructures promises a variety of exciting applications for conventional plasmonics. The versatility of graphene means that graphene-based plasmonics may enable the manufacture of novel optical devices working in different frequency ranges, from terahertz to the visible, with extremely high speed, low driving voltage, low power consumption and compact sizes. Here we review the field emerging at the intersection of graphene physics and plasmonics.Comment: Review article; 12 pages, 6 figures, 99 references (final version available only at publisher's web site

    Neutrino-cooled accretion disks as the central engine of gamma-ray bursts

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    Neutrino-cooled hyperaccretion disks around stellar mass black holes are plausible candidates for the central engine of gamma-ray bursts. We calculate the one-dimensional structure and the annihilation luminosity of such disks. The resulting neutrino annihilation luminosity is still likely to be adequate for gamma-ray bursts, and it is ejected mainly from the inner region of the disk and has an anisotropic distribution

    Berkovich Nanoindentation on AlN Thin Films

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    Berkovich nanoindentation-induced mechanical deformation mechanisms of AlN thin films have been investigated by using atomic force microscopy (AFM) and cross-sectional transmission electron microscopy (XTEM) techniques. AlN thin films are deposited on the metal-organic chemical-vapor deposition (MOCVD) derived Si-doped (2 × 1017 cm−3) GaN template by using the helicon sputtering system. The XTEM samples were prepared by means of focused ion beam (FIB) milling to accurately position the cross-section of the nanoindented area. The hardness and Young’s modulus of AlN thin films were measured by a Berkovich nanoindenter operated with the continuous contact stiffness measurements (CSM) option. The obtained values of the hardness and Young’s modulus are 22 and 332 GPa, respectively. The XTEM images taken in the vicinity regions just underneath the indenter tip revealed that the multiple “pop-ins” observed in the load–displacement curve during loading are due primarily to the activities of dislocation nucleation and propagation. The absence of discontinuities in the unloading segments of load–displacement curve suggests that no pressure-induced phase transition was involved. Results obtained in this study may also have technological implications for estimating possible mechanical damages induced by the fabrication processes of making the AlN-based devices

    17β-Estradiol Enhances Breast Cancer Cell Motility and Invasion via Extra-Nuclear Activation of Actin-Binding Protein Ezrin

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    Estrogen promotes breast cancer metastasis. However, the detailed mechanism remains largely unknown. The actin binding protein ezrin is a key component in tumor metastasis and its over-expression is positively correlated to the poor outcome of breast cancer. In this study, we investigate the effects of 17β-estradiol (E2) on the activation of ezrin and its role in estrogen-dependent breast cancer cell movement. In T47-D breast cancer cells, E2 rapidly enhances ezrin phosphorylation at Thr567 in a time- and concentration-dependent manner. The signalling cascade implicated in this action involves estrogen receptor (ER) interaction with the non-receptor tyrosine kinase c-Src, which activates the phosphatidylinositol-3 kinase/Akt pathway and the small GTPase RhoA/Rho-associated kinase (ROCK-2) complex. E2 enhances the horizontal cell migration and invasion of T47-D breast cancer cells in three-dimensional matrices, which is reversed by transfection of cells with specific ezrin siRNAs. In conclusion, E2 promotes breast cancer cell movement and invasion by the activation of ezrin. These results provide novel insights into the effects of estrogen on breast cancer progression and highlight potential targets to treat endocrine-sensitive breast cancers

    Nonlinear characterization of a bistable energy harvester dynamical system

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    International audienceThis chapter explores the nonlinear dynamics of a piezo-magneto-elastic bistable energy device system regards the influence of external forcing parameters influence on system response. Time series, Poincaré maps, phase space trajectories, and bifurcation diagrams are employed in order to reveals system dynamics complexity and nonlinear effects, such as chaos incidence and hysteresis
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