1,306 research outputs found
âSaving livesâ: Adapting and adopting Human Papilloma Virus (HPV) vaccination in Austria
AbstractVaccination against the sexually transmitted Human Papilloma Virus (HPV), a necessary agent for the development of cervical cancer, has triggered much debate. In Austria, HPV policy turned from âlagging behindâ in 2008 into âEurope's frontrunnerâ by 2013. Drawing on qualitative research, the article shows how the vaccine was transformed and made âgood enoughâ over the course of five years. By means of tinkering and shifting storylines, policy officials and experts disassociated the vaccine from gender, vaccine manufacturers, and youth sexuality. Ultimately, the HPV vaccine functioned to strengthen the national immunization program. To this end, preventing an effective problematization of the extant screening program was essential
Chapter 21 The Pandemic as we know it
"Once treated as the absence of knowledge, ignorance has now become a highly influential and rapidly growing topic in its own right. This new edition of the seminal text in the field is fully revised and includes new and expanded chapters on religion; domestic law and jurisprudence; sexuality and gender studies; memory studies; international relations; psychology; decision-theory; and colonial history.
The study of ignorance has attracted growing attention across the natural and social sciences where a wide range of scholars explore the social life and political issues involved in the distribution and strategic use of not knowing. This handbook reflects the interdisciplinary field of ignorance studies by drawing contributions from economics, sociology, history, philosophy, cultural studies, anthropology, feminist studies, and related fields to serve as a path-breaking guide to the political, legal and social uses of ignorance in social and political life.
This book will be indispensable for anyone seeking to understand the important role played by ignorance in contemporary society, culture and politics.
Dichterbij de dagelijkse praktijk? Evaluatieonderzoek naar het inzetten van mystery guest als instrument van toezicht in de ouderenzorg
Het afgelopen jaar is door de Inspectie voor de Gezondheidszorg (IGZ) ervaring opgedaan
met het inzetten van mystery guests in de intramurale ouderenzorg. Om inzicht te krijgen in
de ervaringen met het inzetten van mystery guests als methode van toezicht en in de
kwaliteit en bruikbaarheid van de informatie die deze methode oplevert, is in het voorjaar
en de zomer van 2012 een inventariserend onderzoek uitgevoerd door het instituut Beleid
en Management Gezondheidszorg (iBMG) van de Erasmus Universiteit Rotterdam. Tijdens
het onderzoek is gebruik gemaakt van verschillende kwalitatieve onderzoeksmethoden, te
weten literatuurstudie, documentenanalyse, webstudie en interviews.
In dit rapport bespreken we eerst de context waarin het project zich afspeelt.
Specifiek bespreken wij drie factoren die ertoe hebben geleid dat de mystery guests relatief
snel zijn ingevoerd als methode van toezicht in de ouderenzorg: (1) de bestuurlijke en
maatschappelijke discussie over toezicht op de ouderenzorg, (2) de oproep vanuit de politiek
op de IGZ om strenger toezicht uit te voeren en (3) een flexibele definitie van mystery
guests. Vervolgens geven we een overzicht van ervaringen met het inzetten van mystery
guests (en verwante methoden) als instrument van toezicht in andere toezichtsectoren en
elders in de gezondheidszorg. Een belangrijke vraag die hierbij naar voren komt is waar de
grens ligt tussen effectief toezicht en âuitlokkingâ. Dit probleem heeft de IGZ in de praktijk
grotendeels kunnen omzeilen door een onafhankelijk bureau in te huren en deze de ruimte
te geven de mystery guest bezoeken zelf in te richten
Putting public health infrastructures to the test: Introducing HPV vaccination in Austria and the Netherlands
SizeâDependent Photocatalytic Reactivity of Conjugated Microporous Polymer Nanoparticles
Particle size is a critical factor for improving photocatalytic reactivity of conjugated microporous polymers (CMPs) as mass transfer in the porous materials is often the rateâlimiting step. However, due to the synthetic challenge of controlling the size of CMPs, the impact of particle size is yet to be investigated. To address this problem, a simple and versatile dispersion polymerization route that can synthesize dispersible CMP nanoparticles with controlled size from 15 to 180 nm is proposed. Leveraging the precise control of the size, it is demonstrated that smaller CMP nanoparticles have dramatically higher photocatalytic reactivity in various organic transformations, achieving more than 1000% enhancement in the reaction rates by decreasing the size from 180 to 15 nm. The sizeâdependent photocatalytic reactivity is further scrutinized using a kinetic model and transient absorption spectroscopy, revealing that only the initial 5 nmâthick surface layer of CMP nanoparticles is involved in the photocatalytic reactions because of internal mass transfer limitations. This finding substantiates the potential of small CMP nanoparticles to efficiently use photoâgenerated excitons and improve energyâefficiency of numerous photocatalytic reactions
Alternative respiratory chain enzymes: Therapeutic potential and possible pitfalls
The alternative respiratory chain (aRC), comprising the alternative NADH dehydrogenases (NDX) and quinone oxidases (AOX), is found in microbes, fungi and plants, where it buffers stresses arising from restrictions on electron flow in the oxidative phosphorylation system. The aRC enzymes are also found in species belonging to most metazoan phyla, including some chordates and arthropods species, although not in vertebrates or in Drosophila. We postulated that the aRC enzymes might be deployed to alleviate pathological stresses arising from mitochondrial dysfunction in a wide variety of disease states. However, before such therapies can be contemplated, it is essential to understand the effects of aRC enzymes on cell metabolism and organismal physiology. Here we report and discuss new findings that shed light on the functions of the aRC enzymes in animals, and the unexpected benefits and detriments that they confer on model organisms. In Ciona intestinalis, the aRC is induced by hypoxia and by sulfide, but is unresponsive to other environmental stressors. When expressed in Drosophila, AOX results in impaired survival under restricted nutrition, in addition to the previously reported male reproductive anomalies. In contrast, it confers cold resistance to developing and adult flies, and counteracts cell signaling defects that underlie developmental dysmorphologies. The aRC enzymes may also influence lifespan and stress resistance more generally, by eliciting or interfering with hormetic mechanisms. In sum, their judicious use may lead to major benefits in medicine, but this will require a thorough characterization of their properties and physiological effects.Peer reviewe
Persistence of functional memory B cells recognizing SARS-CoV-2 variants despite loss of specific IgG
Although some COVID-19 patients maintain SARS-CoV-2-specific serum immunoglobulin G (IgG) for more than 6 months postinfection, others eventually lose IgG levels. We assessed the persistence of SARS-CoV-2-specific B cells in 17 patients, 5 of whom had lost specific IgGs after 5â8 months. Differentiation of blood-derived B cells in vitro revealed persistent SARS-CoV-2-specific IgG B cells in all patients, whereas IgA B cells were maintained in 11. Antibodies derived from cultured B cells blocked binding of viral receptor-binding domain (RBD) to the cellular receptor ACE-2, had neutralizing activity to authentic virus, and recognized the RBD of the variant of concern Alpha similarly to the wild type, whereas reactivity to Beta and Gamma were decreased. Thus, differentiation of memory B cells could be more sensitive for detecting previous infection than measuring serum antibodies. Understanding the persistence of SARS-CoV-2-specific B cells even in the absence of specific serum IgG will help to promote long-term immunity
Incremental Value of Computed Tomography Perfusion for Final Infarct Prediction in Acute Ischemic Cerebellar Stroke
Background
The diagnosis of ischemic cerebellar stroke is challenging because of nonspecific symptoms and very limited accuracy of commonly applied computed tomography (CT) imaging. Advances in CT perfusion imaging provide increasing value in the detection of posterior circulation stroke, but the prognostic value remains unclear. We aimed to identify imaging parameters that predict morphologic outcome in cerebellar stroke patients using advanced CT including wholeâbrain CT perfusion (WBâCTP).
Methods and Results
We selected all subjects with cerebellar WBâCTP perfusion deficits and followâupâconfirmed cerebellar infarction from a consecutive cohort with suspected stroke who underwent WBâCTP. PosteriorâcirculationâAcuteâStrokeâPrognosisâEarlyâCTâScore (pcâASPECTS) was determined on noncontrast CT, CT angiography source images, and on parametric WBâCTP maps. Cerebellar perfusion deficit volumes on all maps and the final infarction volume on followâup imaging were quantified. Uniâ and multivariate regression analyses were performed. Sixty patients fulfilled the inclusion criteria. pcâASPECTS on CT angiography source images (Ă, â9.239; 95% CI, â14.220 to â4.259; P0.05).
Conclusions
In contrast to noncontrast CT and CT angiography, WBâCTP imaging contains prognostic information for morphologic outcome in patients with acute cerebellar stroke
The Turkey Ig-like receptor family: identification, expression and function.
The chicken leukocyte receptor complex located on microchromosome 31 encodes the chicken Ig-like receptors (CHIR), a vastly expanded gene family which can be further divided into three subgroups: activating CHIR-A, bifunctional CHIR-AB and inhibitory CHIR-B. Here, we investigated the presence of CHIR homologues in other bird species. The available genome databases of turkey, duck and zebra finch were screened with different strategies including BLAST searches employing various CHIR sequences, and keyword searches. We could not identify CHIR homologues in the distantly related zebra finch and duck, however, several partial and complete sequences of CHIR homologues were identified on chromosome 3 of the turkey genome. They were designated as turkey Ig-like receptors (TILR). Using cDNA derived from turkey blood and spleen RNA, six full length TILR could be amplified and further divided according to the typical sequence features into one activating TILR-A, one inhibitory TILR-B and four bifunctional TILR-AB. Since the TILR-AB sequences all displayed the critical residues shown to be involved in binding to IgY, we next confirmed the IgY binding using a soluble TILR-AB1-huIg fusion protein. This fusion protein reacted with IgY derived from various gallinaceous birds, but not with IgY from other bird species. Finally, we tested various mab directed against CHIR for their crossreactivity with either turkey or duck leukocytes. Whereas no staining was detectable with duck cells, the CHIR-AB1 specific mab 8D12 and the CHIR-A2 specific mab 13E2 both reacted with a leukocyte subpopulation that was further identified as thrombocytes by double immunofluorescence employing B-cell, T-cell and thrombocyte specific reagents. In summary, although the turkey harbors similar LRC genes as the chicken, their distribution seems to be distinct with predominance on thrombocytes rather than lymphocytes
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