نتایج جستجو برای: stalk
تعداد نتایج: 5137 فیلتر نتایج به سال:
The millisecond stalk contraction of the sessile ciliate Vorticella convallaria is powered by energy from Ca2þ binding to generate contractile forces of ~10 nN. Its contractile organelle, the spasmoneme, generates higher contractile force under increased stall resistances. By applying viscous drag force to contracting V. convallaria in a microfluidic channel, we observed that the mechanical for...
This study aims to determine and complete the database related productivity level of male palm flower stalks in producing sap wild populations natural habitats South Tapanuli Regency. The research was conducted 2 villages 4 districts with a total sample 40 plants. stages this were carried out three stages. first stage is survey sampling by purposive sampling, namely technique be used as based o...
Background: Recently, several human monoclonal antibodies that target conserved epitopes on the stalk region of influenza hemagglutinin (HA) have shown broad reactivity to influenza A subtypes. Also, vaccination with recombinant chimeric HA or stem fragments from H3 influenza viruses induce broad immune protection in mice and humans. However, it is unclear whether stalk-binding antibodies can b...
Using TURBO technique, we accurately evaluated horizontal extension of non-muscle invasive bladder tumors in relation to clinical and pathological parameters. Non-muscle invasive bladder tumors sized less than 20 mm were resected with an approximately 5-mm margin from the stalk using the TURBO technique. Specimens from 52 cases were pathologically examined to determine the amount of horizontal ...
UNLABELLED Influenza remains a major global health burden. Seasonal vaccines offer protection but can be rendered less effective when the virus undergoes extensive antigenic drift. Antibodies that target the highly conserved hemagglutinin stalk can protect against drifted viruses, and vaccine constructs designed to induce such antibodies form the basis for a universal influenza virus vaccine ap...
Despite large vaccination campaigns, measles virus (MeV) and canine distemper virus (CDV) cause major morbidity and mortality in humans and animals, respectively. The MeV and CDV cell entry system relies on two interacting envelope glycoproteins: the attachment protein (H), consisting of stalk and head domains, co-operates with the fusion protein (F) to mediate membrane fusion. However, how rec...
The ribosomal stalk complex plays a crucial role in delivering translation factors to the catalytic site of the ribosome. It has a very similar architecture in all cells, although the protein components in bacteria are unrelated to those in archaea and eukaryotes. Here we used mass spectrometry to investigate ribosomal stalk complexes from bacteria, eukaryotes, and archaea in situ on the riboso...
After the emergence of pandemic influenza viruses in 1957, 1968, and 2009, existing seasonal viruses were observed to be replaced in the human population by the novel pandemic strains. We have previously hypothesized that the replacement of seasonal strains was mediated, in part, by a population-scale boost in antibodies specific for conserved regions of the hemagglutinin stalk and the viral ne...
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