Search results

Filter

Filetype

Your search for "*" yielded 534393 hits

Whole-mount in situ hybridization and immunohistochemistry in Xenopus embryos.

Xenopus is a favorable experimental model in developmental biology. With its fast and external development, high number of progeny and large size, early embryos are well suited for micromanipulation to study the function of genes with relevance to human diseases. In this chapter, we present a combined method for lineage tracing and whole-mount in situ hybridization. In addition, we present protocoXenopus is a favorable experimental model in developmental biology. With its fast and external development, high number of progeny and large size, early embryos are well suited for micromanipulation to study the function of genes with relevance to human diseases. In this chapter, we present a combined method for lineage tracing and whole-mount in situ hybridization. In addition, we present protoco

Women, Power, and the Bible in Early Anabaptist History

The article argues that the way Anabaptist history and theology is commonly narrated needs to be reshaped. A fundamental question is asked: Did women have positions of power in the early Anabaptist movement? Two points are considered: 1) How is power understood? and 2) On what premises can the history of Anabaptist women be written? These two points are put in relation to portraits of three women

Narrative and Emotion in Education : Reading Literature as an Exercise in Affective Expression

General AbstractTraditionally, affects do not belong in the academic world, are not seen as compatible with science,the domain of objectivity. We have few teaching hours at our disposal and a large mass of content toput into them. This is true for academic literature classes, too, despite the fact that the "affectiveturn” at the beginning of the 21st century, thanks to scholars like Patrick Colm H

Faculty responses to business school branding : a discursive approach

PurposeThe branding of universities is increasingly recognized to present a different set of challenges than in corporate, for-profit sectors. The purpose of this paper is to investigate how faculty make sense of branding in the context of higher education, specifically considering branding initiatives in business schools.Design/methodology/approachThe paper is based on qualitative interviews with

Pulmonary fibrosis in vivo displays increased p21 expression reduced by 5-HT2B receptor antagonists in vitro - A potential pathway affecting proliferation

Serotonin (5-hydroxytryptamine) has repeatedly been associated with the development of fibrotic disorders such as pulmonary fibrosis. By blocking the binding of 5-HT to 5-HT2B receptors with receptor antagonists, several pro-fibrotic mechanisms can be inhibited. Bleomycin-induced pulmonary fibrosis is a model used to evaluate pathological mechanisms and pharmacological interventions. Previously we

Multidimensional correlation of nuclear relaxation rates and diffusion tensors for model-free investigations of heterogeneous anisotropic porous materials

Despite their widespread use in non-invasive studies of porous materials, conventional MRI methods yield ambiguous results for microscopically heterogeneous materials such as brain tissue. While the forward link between microstructure and MRI observables is well understood, the inverse problem of separating the signal contributions from different microscopic pores is notoriously difficult. Here, w

No evidence that carotenoid pigments boost either immune or antioxidant defenses in a songbird

Dietary carotenoids have been proposed to boost immune system and antioxidant functions in vertebrate animals, but studies aimed at testing these physiological functions of carotenoids have often failed to find support. Here we subject yellow canaries (Serinus canaria), which possess high levels of carotenoids in their tissue, and white recessive canaries, which possess a knockdown mutation that r

α-cell glucokinase suppresses glucose-regulated glucagon secretion

Glucagon secretion by pancreatic α-cells is triggered by hypoglycemia and suppressed by high glucose levels; impaired suppression of glucagon secretion is a hallmark of both type 1 and type 2 diabetes. Here, we show that α-cell glucokinase (Gck) plays a role in the control of glucagon secretion. Using mice with α-cell-specific inactivation of Gck (αGckKO mice), we find that glucokinase is required

Measurements and Monte-Carlo simulations of the particle self-shielding effect of B4C grains in neutron shielding concrete

A combined measurement and Monte-Carlo simulation study was carried out in order to characterize the particle self-shielding effect of B4C grains in neutron shielding concrete. Several batches of a specialized neutron shielding concrete, with varying B4C grain sizes, were exposed to a 2 Å neutron beam at the R2D2 test beamline at the Institute for Energy Technology located in Kjeller, Norway. The

Estimation of chirp signals with time-varying amplitudes

The problem of parameters estimation of signals composed of an unknown number of chirps with time-varying amplitude is presented using a sparse reconstruction framework. The method employs a parametric model using a weighted combination of splines to model the time-varying nature of the signal amplitudes. To obtain high-resolution of the frequencies and to avoid large dimensional matrices, a dicti