This article analyses recent developments in Croatian housing finance to update the established account of housing finance and peripheral financialisation in Eastern Europe that is based on the boom-bust cycle of the 2000s and early-to-mid 2010s. During the bust stage of that cycle, changes in regulation and in the behaviour of debtors and creditors resulted in deleveraging and a shift away from the risky and exploitative lending practices characteristic of peripheral housing finance. However, new increases in household debt and housing prices since 2016–17, coupled with the COVID-19 pandemic, seem to have reversed these trends. While a boom-bust cycle of similar scope and modality to the first one is unlikely to be repeated, peripheral forms of housing finance have persisted to some degree.
The citation frequency of papers on invasion ecology published between 1981 and 2003 and that had accumulated at least 30 citations on the Web of Science on 9 August 2006 was analysed. The dataset comprised 329 papers and 27,240 citations. For each paper, the total number of citations was recorded and the annual citation rate (number of citations per year) was calculated. Papers were classified into broad research fields: plant invasions, animal invasions, biological control, and general papers (reviews and syntheses). Eight papers were cited more than 300 times, five of them dealt with general topics, and the mean value of the total number of citations across the whole data set is 82.8±73.1. The mean annual citation rate is 11.5±11.3 citations per year; six studies received on average at least 50 citations each year. About a half (50.8%) of papers in the data set deal with plant invasions. General papers are significantly more cited than papers from the other categories. The annual citation rate increased with time over the analysed period (1981–2003), by 1.0 citations per year. To compare the trends in invasion ecology with those in other fields of ecology, comparable data were compiled for population ecology and dynamics, and global change. The annual citation rate for invasion ecology as a whole increased faster than that for population ecology and dynamics, but not exponentially as is the case with studies on global change. The best-cited papers on invasion ecology were distributed among most of the top ecology journals. Those published in Oikos, Journal of Ecology, Ecological Applications and BioScience are cited 3.8–5.8 times more than the average for these journals (based on the impact factor). Papers on biodiversity, community ecology, impact, invasibility, dispersal, population ecology, competition, resources, genetical issues, biological control and species invasiveness received the highest total number of citations. However, measured by the annual citation rate, the hottest current topics in invasion ecology are the effect of global change on invasions, the role of natural enemies, character of the invasion process, evolutionary aspects, invasibility of communities and ecosystem processes. Some topics are disproportionally more cited than studied and vice versa. Studies on plant and animal invasions differ in focus: the topics of invasibility, biodiversity, resources, species invasiveness and population genetics are more emphasized in botanical studies, dispersal, competition, impact and pathways in papers dealing with animal invasions. Studies of grasslands and marine environment are most frequently cited in botanical and zoological studies, respectively. Most of the highly cited papers deal with multiple species; only 14 plant species and four animal species are the primary focus of one or more of the highly-cited papers. Twenty-two authors (4.5% of the total involved in the papers analysed), each with seven or more contributions cited at least 30 times, together contributed 49.4% of the most-cited papers, and attracted 55.6% of the total number of citations.
Úvod: Kompletní resekce je obecně uznávaný standard léčby GII ependymomů IV. komory u dospělých, zatímco role adjuvantní radioterapie zůstává nejistá. Účelem předkládané studie je zhodnotit lokální kontrolu onemocnění a klinický stav pacientů s tímto onemocněním po chirurgické terapii. Materiál a metody: Retrospektivně jsme zhodnotili 15 pacientů (sedm mužů a osm žen) s histologicky verifikovaným GII ependymomem IV. komory v časovém období leden 2001–prosinec 2011. Výsledky: Kompletní resekce tumoru byla dosažena u 12 pacientů, u žádného z nich nebyla indikována adjuvantní radioterapie. Medián dalšího sledování byl 51 měsíců (min.–max.; 11–123 měsíců). Ke grafické recidivě došlo u jednoho pacienta, ten byl reoperován s časovým odstupem 51 měsíců od prvního zákroku. Nový neurologický deficit po operaci byl zaznamenán ve dvou případech. U dvou ze tří pacientů po subtotální resekci došlo ke grafické progresi rezidua po 11 a 16 měsících od první operace, jeden z nich byl reoperován s odstupem 27 měsíců. Adjuvantní radioterapie byla indikována u obou pacientů po reoperaci. Závěr: Dle našich dat je kompletní resekce efektivní a bezpečná léčba GII ependymomů IV. komory u dospělých. Následná radioterapie by měla být rezervována pro případy subtotální resekce s následnou progresí rezidua tumoru a reoperace., Introduction: Surgical resection is a generally accepted standard treatment modality in GII posterior fossa ependymomas in adults, while the role of adjuvant radiotherapy remains unclear. The purpose of this study was to evaluate local control of tumor growth and clinical outcome of patients after surgical treatment of GII fourth ventricle ependymomas. Material and methods: We conducted a retrospective study of 15 adult patients (seven males and eight females) with histologically confirmed GII fourth ventricular ependymoma between January 2001 and December 2011. Results: Gross total resection was achieved in 12 patients, none of them received adjuvant treatment after the initial surgery. Median follow-up after GTR was 51 months (min. – max.; 11–123 months). One patient showed radiographic signs of tumor recurrence and was re-operated 51 months after the initial surgery. Remaining patients were without any signs of tumor recurrence. After the surgery, a new neurological deficit occurred in two patients. Two of the three patients after subtotal tumor resection showed residual mass progression after 11 and 16 months postoperatively, one of them was re-operated 27 months after the initial surgery. Adjuvant radiotherapy was indicated in both re-operated patients. Conclusion: According to our data, gross total resection is effective and safe treatment of GII fourth ventricle ependymomas. Adjuvant radiotherapy should be reserved for the cases where complete removal of tumor mass is not possible and residual tumor is growing, or after repeated resection. Key words: ependymoma – adult – fourth ventricle – posterior fossa surgery – survival recurrence – radiotherapy The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers., and A. Štekláčová, O. Bradáč, V. Beneš