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Abstract: The pharyngocutaneous fistula (PCF) is a pathologic canal connecting the pharyngeal lumen with the skin of the neck occurring after a total laryngectomy (TLE), the removal of the entire larynx. The incidence of PCF ranges from 0% to 80%. Our study aimed to identify the temporal changes in PCF incidence over an extended period and determine the risk factors for increases in the PCF rate. By reviewing patient data from 2004 to 2022, we discovered a total incidence of 26.7%. This study revealed four high-incidence periods, averaging 37.61%, each followed by lower-incidence periods of 19.38%. The surgical wound infection and a history of head and neck cancer along with its related treatments were identified as independent risk factors during most of the high-incidence periods. The continuous monitoring of patients following TLE can assist providers in the better prediction and, consequently, timely management of PCF, ultimately improving patient outcomes after TLE.
Published in DiRROS: 28.11.2025; Views: 156; Downloads: 69
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Keywords: plemiška kultura, zemljiška gospostva, materialna kultura, bogastvo, rodbina Cobenzl
Published in DiRROS: 28.11.2025; Views: 113; Downloads: 24
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Keywords: varstvo gozdov, morfološke analize
Published in DiRROS: 28.11.2025; Views: 124; Downloads: 41
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Abstract: Integrable systems offer rare examples of solvable many-body problems in the quantum world. Because of the fine-tuned structure, their realization in nature and experiment is never completely accurate, and therefore effects of integrability are observed only transiently. One way to overcome this limitation is to weakly couple nearly integrable systems to baths and driving: this will stabilize integrable effects up to arbitrary time and encode them in the stationary state approximated by a generalized Gibbs ensemble. However, the description of such driven dissipative nearly integrable models is challenging and no exact analytical methods have been proposed so far. Here, we develop an iterative scheme in which integrability breaking perturbations (baths) determine the conserved quantities that play the leading role in a highly efficient truncated generalized Gibbs ensemble description. Our scheme paves the way for easier calculations in thermodynamically large systems and can be used to construct unknown conserved quantities.
Published in DiRROS: 28.11.2025; Views: 97; Downloads: 39
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Abstract: PV-related fires have caused significant property damage over the last decade, and their numbers are still rising, thus potentially undermining solar power's intended contributions towards sustainability. Robust solutions are needed to ensure risk reduction, and incident reporting is an important part of the risk analysis process. Statistics on the adverse events provide a good insight into the more prevalent failure modes and establish the failure frequency. An assessment of the data on PV-related fires shows that Italy can expect about 10 fires per GW annually, while Slovenia can expect about 37 fires per GW annually, compared to a previously established number for an international average of 29 fires per GW. Although the rates for both countries are in the same order of magnitude as the international average, the differences can be attributed to different methods of data collection, as well as to some differences in legislation and installation requirements in the two countries. Importantly, while acceptable risk levels are typically in the order of 10⁻⁶, the observed rates are in the order of 10⁻⁴, which is in a range that demands immediate risk management actions.
Keywords: fire safety, photovoltaic systems, statistics
Published in DiRROS: 28.11.2025; Views: 135; Downloads: 95
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