Search results for " Vent"
showing 10 items of 1372 documents
Noninvasive ventilation for acute hypoxemic respiratory failure/ARDS: The show must go on
2018
β2-Adrenoceptors and GRK2 as Potential Biomarkers in Patients With Chronic Pulmonary Regurgitation
2019
Pulmonary regurgitation (PR) is a frequent complication after repair of congenital heart disease. Three different GRK isoforms (GRK2, GRK5, and GRK3) and two β-adrenoceptors (β1-AR and β2-AR) are present in peripheral blood mononuclear cells (PBMC) and their expression changes as a consequence of the hemodynamic and neurohumoral alterations that occur in some cardiovascular diseases. Therefore, they could be useful as biomarkers in PR. A prospective study was conducted to describe the expression (TaqMan Gene Expression Assays) of β-ARs and GRKs in PBMC isolated (Ficoll® gradient) from patients with severe PR before and after pulmonary valve replacement and establish if this expression corre…
First-in-Human Percutaneous Circumferential Annuloplasty for Secondary Tricuspid Regurgitation
2020
Transcatheter therapies to treat tricuspid regurgitation are being developed, but few have attempted the gold standard of surgical repair: ring annuloplasty. We describe the first-ever fully percutaneous implantation of a circumferential, semirigid annuloplasty ring to treat massive secondary tricuspid regurgitation. (Level of Difficulty: Advanced.)
An Illustration to Ælfric’s De temporibus anni in Ælfwine’s Prayerbook
2020
L'articolo esamina un diagramma contenuto nel manoscritto London, British Library, Cotton Titus D.xxvii+xxvi, generalmente noto come 'Ælfwine’s Prayerbook'. Il diagramma, che si trova al fol. 21 v , è stato in genere interpretato come una rota incompleta, o delle maree o dei venti (dal momento che contiene solo 4 dei canonici 12 venti della tradizione scientifica medievale). Una analisi comparativa e dettagliata delle caratteristiche del diagramma, tuttavia, mostra come l'ipotesi della rota delle maree sia da rigettare in favore della teoria di una rota ventorum. Inoltre, l'analisi dei testi contenuti nel manoscritto rivela una stretta connessione tra il diagramma e il De temporibus anni di…
An analysis of recent research on venture capital networks
2019
Purpose – this paper examines recent trends in venture capital network research. Network analysis is a useful approach for analyzing inter-organizational networks, especially for venture capitalists, which are characterized by plenty of connections. Although important steps ahead have been made, several research questions are still unanswered. Research methodology – this brief review analyses deeply three papers which are representative of the novel scientific literature in this field. Scrutinizing these works, I identify their points of strength and weaknesses, in order to understand how to pave the way for further research. Findings – this paper shows that the study of network weak ties a…
Fostering Dynamic Growth in New Ventures through Venture Capital: Conceptualizing Venture Capital Capabilities
2017
There is ample evidence of the influence of venture capital on the creation and growth of new ventures, yet scant attention has been paid to the heterogeneity of venture capitalists and their capacity to contribute to the dynamic growth of new ventures. This paper aims to contribute to the existing literature by exploring the notion that venture capitalists have beneficial effects on the growth of new ventures when they rely on a set of distinctive skills and processes that we associate with venture capital capabilities. We bridge the venture capital and resource-based view research streams to identify the foundational mechanisms of venture capital capabilities. We develop a set of proposit…
Studies to Elucidate the Mechanism of Cardio Protective and Hypotensive Activities of Anogeissus acuminata (Roxb. ex DC.) in Rodents
2020
Anogeissus acuminata (Roxb. ex DC.) is a folkloric medicinal plant in Asia
Investigations in intensification of grain drying by active ventilation applying ozone
2020
The financial support of the Rural Support Service project No l8-00-A01620-000003 “Technology development of grain drying with active ventilation using ozone” is greatly acknowledged. The authors thank for the support and active cooperation the representatives of the farm “Mazkalniņi” Dr.sc.ing. Aivars Cēsnieks and ing. Sandris Cēsnieks.
Genetic and Epigenetic Factors of Takotsubo Syndrome: A Systematic Review
2021
Takotsubo syndrome (TTS), recognized as stress’s cardiomyopathy, or as left ventricular apical balloon syndrome in recent years, is a rare pathology, described for the first time by Japanese researchers in 1990. TTS is characterized by an interindividual heterogeneity in onset and progression, and by strong predominance in postmenopausal women. The clear causes of these TTS features are uncertain, given the limited understanding of this intriguing syndrome until now. However, the increasing frequency of TTS cases in recent years, and particularly correlated to the SARS-CoV-2 pandemic, leads us to the imperative necessity both of a complete knowledge of TTS pathophysiology for identifying bi…
Pharmacological activation of CB2 receptors counteracts the deleterious effect of ethanol on cell proliferation in the main neurogenic zones of the a…
2015
Chronic alcohol exposure reduces endocannabinoid activity and disrupts adult neurogenesis in rodents, which results in structural and functional alterations. Cannabinoid receptor agonists promote adult neural progenitor cell (NPC) proliferation. We evaluated the protective effects of the selective CB1 receptor agonist ACEA, the selective CB2 receptor agonist JWH133 and the fatty-acid amide-hydrolase (FAAH) inhibitor URB597, which enhances endocannabinoid receptor activity, on NPC proliferation in rats with forced consumption of ethanol (10%) or sucrose liquid diets for 2 weeks. We performed immunohistochemical and stereological analyses of cells expressing the mitotic phosphorylation of his…