First autochthonous Dirofilaria immitis (Leidy, 1856) infection in a dog in Hungary

AbstractA 4 year-old, male Hungarian Vizsla dog which had never been abroad was referred with poor general condition, decrease in body weight, haematemesis and jaundice to the Central Clinic of Veterinary Science University, Budapest. After symptomatic treatment abdominal ultrasonography and diagnostic laparatomy were carried out. The dog was humanely euthanized two days later following owner's consent because of sudden worsening of clinical conditions. Two adult heartworms (Dirofilaria immitis) were found in the right ventricle partially coiling around the tricuspid valve. PCR on blood was positive for both D. immitis and Dirofilaria repens while only D. repens microfilariae were found by modified Knott's test and the serological test was negative for D. immitis antigens. This is the first, confirmed report of autochthonous canine heartworm infection in Hungary

Spatial Scientometrics and Scholarly Impact: A Review of Recent Studies, Tools, and Methods

Previously, we proposed a research program to analyze spatial aspects of the science system which we called “spatial scientometrics” (Frenken, Hardeman, & Hoekman, 2009). The aim of this chapter is to systematically review recent (post-2008) contributions to spatial scientometrics on the basis of a standardized literature search. We focus our review on contributions addressing spatial aspects of scholarly impact, particularly, the spatial distribution of publication and citation impact, and the effect of spatial biases in collaboration and mobility on citation impact. We also discuss recent dedicated tools and methods for analysis and visualization of spatial scientometric data. We end with reflections about future research avenues