163 research outputs found
Understanding Parents\u27 Experiences with Children with Type 1 Diabetes: A Qualitative Inquiry
Parenting is often described as a stress-inducing experience, which can be further complicated or made more stressful and anxiety-inducing when parenting children with chronic conditions such as type 1 diabetes (T1D). The incidence of T1D among children has risen and continues to rise globally, resulting in a need to understand the experiences of parenting children with T1D. The purpose of this qualitative inquiry was to explore the lived experiences, and the meaning ascribed to those experiences, of being a parent of a child with T1D. This qualitative study was conducted through an interpretivist paradigm and includes the experiences of 29 parents (19 mothers and 10 fathers) of 24 children (aged 6 to 15 years) with T1D. Parents, and parent dyads, completed demographic questionnaires and written prompts, and participated in focus group interviews. Three themes were developed from the data, namely, (a) the costs of T1D, (b) the ultimate helicopter mom, and (c) dealing with “being different”. Generally, the participants reported on the direct (e.g., financial and time) and indirect (e.g., family planning) costs associated with parenting children with T1D, their role as a primary provider and anxieties with relinquishing control and dealing with the stigma surrounding a diabetes diagnosis. Unique findings from this study included the impact a T1D diagnosis had on future family planning as parents navigated the fear and uncertainty of having additional children with T1D, as well as the internal conflict parents had with entrusting others to care for their child, especially if they deemed them to be unqualified or unnecessarily stigmatizing or ostracizing their child
Inspirational and Worthy of Charity: (Mis)Representations of Disability in Sport Media
This study explored how one United States-based sports media company (SMC) represents disability through their Twitter account. A directed content analysis approach was utilized to analyze the tweets of the SMC for calendar year 2019. Of 6080 tweets reviewed, 126 (2.1%) were determined to represent disabled athletes or individuals. 43 (34.1%) tweets represented disabled athletes or individuals in participant roles while 83 (65.9%) represented disabled individuals in spectator or nonathlete roles. The tweets were coded into one of four categories of disability portrayal (Garland-Thomson, 2002): wonderous (n = 73), sentimental (n = 43), realistic (n = 7), and exotic (n = 3). They were then open coded into relevant subcategories to provide more context. Findings demonstrate that despite the flexibility and opportunity to feature more diverse sports and athletes through one of their social media platforms (Twitter), the SMC chooses to continue the hegemonic practices deployed in their traditional outlets that focus on nondisabled athletes, popular sports, and representing disabled athletes and individuals through ableist and charity-focused narratives. By drawing attention to these inequities, we may be able to promote change and more equitable opportunities for disabled athletes as sports journalism is cemented in digital platforms
Orbital Configurations and Magnetic Properties of Double-Layered Antiferromagnet CsCuClBr
We report the single-crystal X-ray analysis and magnetic properties of a new
double-layered perovskite antiferromagnet, CsCuClBr. This
structure is composed of CuClBr double layers with elongated
CuClBr octahedra and is closely related to the SrTiO
structure. An as-grown crystal has a singlet ground state with a large
excitation gap of K, due to the strong
antiferromagnetic interaction between the two layers. CsCuClBr
undergoes a structural phase transition at K accompanied
by changes in the orbital configurations of Cu ions. Once a
CsCuClBr crystal is heated above , its magnetic
susceptibility obeys the Curie-Weiss law with decreasing temperature even below
and does not exhibit anomalies at . This implies that in
the heated crystal, the orbital state of the high-temperature phase remains
unchanged below , and thus, this orbital state is the metastable
state. The structural phase transition at is characterized as an
order-disorder transition of Cu orbitals.Comment: 6pages. 6figures, to appear in J. Phys. Soc. Jpn. Vol.76 No.
Unlocking the potential of weberite-type metal fluorides in electrochemical energy storage
Sodium-ion batteries (NIBs) are a front-runner among the alternative battery technologies suggested for substituting the state-of-the-art lithium-ion batteries (LIBs). The specific energy of Na-ion batteries is significantly lower than that of LIBs, which is mainly due to the lower operating potentials and higher molecular weight of sodium insertion cathode materials. To compete with the high energy density of LIBs, high voltage cathode materials are required for NIBs. Here we report a theoretical investigation on weberite-type sodium metal fluorides (SMFs), a new class of high voltage and high energy density materials which are so far unexplored as cathode materials for NIBs. The weberite structure type is highly favorable for sodium-containing transition metal fluorides, with a large variety of transition metal combinations (M, M’) adopting the corresponding Na2MM’F7 structure. A series of known and hypothetical compounds with weberite-type structure were computationally investigated to evaluate their potential as cathode materials for NIBs. Weberite-type SMFs show two-dimensional pathways for Na+ diffusion with surprisingly low activation barriers. The high energy density combined with low diffusion barriers for Na+ makes this type of compounds promising candidates for cathode materials in NIBs
The Antibody Targeting the E314 Peptide of Human Kv1.3 Pore Region Serves as a Novel, Potent and Specific Channel Blocker
Selective blockade of Kv1.3 channels in effector memory T (TEM) cells was validated to ameliorate autoimmune or autoimmune-associated diseases. We generated the antibody directed against one peptide of human Kv1.3 (hKv1.3) extracellular loop as a novel and possible Kv1.3 blocker. One peptide of hKv1.3 extracellular loop E3 containing 14 amino acids (E314) was chosen as an antigenic determinant to generate the E314 antibody. The E314 antibody specifically recognized 63.8KD protein stably expressed in hKv1.3-HEK 293 cell lines, whereas it did not recognize or cross-react to human Kv1.1(hKv1.1), Kv1.2(hKv1.2), Kv1.4(hKv1.4), Kv1.5(hKv1.5), KCa3.1(hKCa3.1), HERG, hKCNQ1/hKCNE1, Nav1.5 and Cav1.2 proteins stably expressed in HEK 293 cell lines or in human atrial or ventricular myocytes by Western blotting analysis and immunostaining detection. By the technique of whole-cell patch clamp, the E314 antibody was shown to have a directly inhibitory effect on hKv1.3 currents expressed in HEK 293 or Jurkat T cells and the inhibition showed a concentration-dependence. However, it exerted no significant difference on hKv1.1, hKv1.2, hKv1.4, hKv1.5, hKCa3.1, HERG, hKCNQ1/hKCNE1, L-type Ca2+ or voltage-gated Na+ currents. The present study demonstrates that the antibody targeting the E314 peptide of hKv1.3 pore region could be a novel, potent and specific hKv1.3 blocker without affecting a variety of closely related Kv1 channels, KCa3.1 channels and functional cardiac ion channels underlying central nervous systerm (CNS) disorders or drug-acquired arrhythmias, which is required as a safe clinic-promising channel blocker
Mesodermal fate decisions of a stem cell: the Wnt switch
Stem cells are a powerful resource for cell-based transplantation therapies in osteodegenerative disorders, but before some kinds of stem cells can be applied clinically, several aspects of their expansion and differentiation need to be better controlled. Wnt molecules and members of the Wnt signaling cascade have been ascribed a role in both these processes in vitro as well as normal development in vivo. However some results are controversial. In this review we will present the hypothesis that both canonical and non-canonical signaling are involved in mesenchymal cell fate regulation, such as adipogenesis, chondrogenesis and osteogenesis, and that in vitro it is a timely switch between the two that specifies the identity of the differentiating cell. We will specifically focus on the in vitro differentiation of adipocytes, chondrocytes and osteoblasts contrasting embryonic and mesenchymal stem cells as well as the role of Wnts in mesenchymal fate specification during embryogenesis
Nanog down-regulates the Wnt signaling pathway via β-catenin phosphorylation during epidermal stem cell proliferation and differentiation
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