And finally, plot the data. Note that when you dissolve, the column used to perform the dissolve becomes an index for the resultant geodataframe. This will return an error as region is no longer a column, it is an index! In the example above, you dissolved the state level polygons to a region level. However, you did not aggregate or summarize the attributes associated with each Disolving Boundaries. Next, you will learn how to aggregate quantitative values in your attribute table when you perform a dissolve.
To do this, you will add. We'll do our best to fix them. Check all that apply - Please note that only the first page is available if you have not selected a reading option after clicking "Read Article".
Include any more information that will help us locate the issue and fix it faster for you. Practitioners and researchers alike are starting to encounter the limited capacity of existing Interaction Design methods to account for the new social spaces of technology design e. Rather than suggesting a diminished role for user-focused methods, we take the position that it is as always, about asking what kinds of design methods are appropriate in this context.
In this paper we hope to contribute to a discussion on the nature of participation in the context of social technologies. Robertson et al. Continue with Facebook. Sign up with Google. Log in with Microsoft. Bookmark this article. You can see your Bookmarks on your DeepDyve Library. Tonsillitis is an inflammation of the tonsils and will often, but not necessarily, cause a sore throat and fever. In chronic cases tonsillectomy may be indicated.
The palatine tonsils are located in the isthmus of the fauces Disolving Boundaries, between the palatoglossal arch and the palatopharyngeal arch of the soft palate. The palatine tonsil is one of the mucosa-associated lymphoid tissues MALTlocated at the entrance to the upper respiratory and gastrointestinal tracts to protect the body from the entry of exogenous material through mucosal sites. In consequence it is a site of, and potential focus for, infections, and is one of the chief immunocompetent tissues in the oropharynx.
It forms part of the Waldeyer's ringwhich comprises the adenoidthe paired tubal tonsilsthe paired palatine tonsils and the lingual tonsils. From the pharyngeal side, they are covered with a stratified squamous epitheliumwhereas a fibrous capsule links them to the wall of the pharynx. Through the capsule pass trabecules that contain small blood vessels, nerves and lymphatic vessels.
These trabecules divide the tonsil into lobules. The nerves supplying the palatine tonsils come from the maxillary division of the trigeminal nerve via the lesser palatine nerves, and from the tonsillar branches of the glossopharyngeal nerve. This nerve is most likely to be damaged during a tonsillectomywhich leads to reduced or lost general sensation and taste sensation to the posterior third of the tongue.
Blood supply is provided by tonsillar branches of five arteries: the dorsal lingual artery of the lingual Disolving Boundariesascending palatine artery of the facial arterytonsillar branch of the facial arteryascending pharyngeal artery of the external carotid arteryand the lesser palatine artery a branch of the descending palatine arteryitself a branch of the maxillary artery.
The tonsils venous drainage is by the peritonsillar plexuswhich drain into the lingual and pharyngeal veins, which in turn drain into the internal jugular vein. Palatine tonsils consist of approximately 15 crypts, which result in a large internal surface. The tonsils contain four lymphoid compartments that influence immune functions, namely the reticular crypt epitheliumthe extrafollicular area, the mantle zones of lymphoid follicles, and the follicular germinal centers.
In human palatine tonsils, the very first part exposed to the outside environment is tonsillar Disolving Boundaries. Tonsillar relating to palatine tonsil B cells can mature to produce all the five major Immunoglobulin Ig, aka antibody classes. Furthermore, when incubated in vitro with either mitogens or specific antigensthey produce specific antibodies against diphtheria toxoidpoliovirusStreptococcus pneumoniaeHaemophilus influenzaeStaphylococcus aureusand the lipopolysaccharide of E.
Most Immunoglobulin A produced by tonsillar B cells in vitro appears Disolving Boundaries be 7S monomers, although a significant proportion may be l0S dimeric IgA.
In addition to humoral immunity elicited by tonsillar and adenoidal B cells following antigenic stimulation, there is considerable T-cell response in palatine tonsils. Thus, natural infection or intranasal immunization with live, attenuated rubella virus vaccine has been reported to prime tonsillar lymphocytes much better than subcutaneous vaccination. Also, natural infection with varicella zoster virus has been found to stimulate tonsillar lymphocytes better than lymphocytes from peripheral blood.
We should end up with one row per zone to dissolve, each with a reference for the relevant larger geography. I think the trick is to make sure the row Disolving Boundaries match exactly, and if you can match the polygon IDs as well with spChFIDs.
Now we can do the dissolve. I use gUnaryUnion and indeed I think unionSpatialPolygons in the maptools package uses this by default.
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