Autor: Mazur, Andrzej. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Three months of “Cumbre Vieja” : analysis of consequences of volcano eruption
Trzy miesiące “Cumbre Vieja” : analiza skutków erupcji wulkanu
Autorzy:: Mazur, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/2203121.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: volcano eruption
atmospheric dispersion
Eulerian model
lagged-ensemble
erupcja
wulkan
dyspersja
eulerowski model
powietrze
związki siarki
zanieczyszczenie powietrza atmosferycznego
Opis:: The work describes the methodology and results of analysis for the consequences assessment of eruption from Cumbre Vieja volcano in Canary Islands. The preliminary analysis of dispersion of emitted pollutants was performed using Lagrangian trajectories model. To estimate long-term outcomes of eruption in terms of deposition and concentration of eruption products the Eulerian model of air dispersion was used. The model uses data from Global Forecasting System meteorological model launched at the NCEP-NOAA centre. The average concentration and deposition of sulfur compounds as well as the probability and time of the pollution cloud reaching all European capitals were examined. In 90 days a cloud of pollutants (SO2, volcanic ashes) spread over the northern hemisphere. Pollution reached Africa, North Sea and Europe. With an average emission of 15,000 tons of SO2/day, the maximum calculated deposition to the Earth’s surface reached 0.8g/m2, while overall deposition – 35 kilotons in the domain area.
W pracy opisano metodykę i wyniki oceny skutków erupcji wulkanu Cumbre Vieja na Wyspach Kanaryjskich. Wstępną analizę dyspersji emitowanych zanieczyszczeń przeprowadzono z wykorzystaniem modelu trajektorii Lagrange’a. Do oszacowania długoterminowych skutków erupcji pod względem osadzania i koncentracji produktów erupcji wykorzystano eulerowski model dyspersji powietrza. W modelu wykorzystano dane z modelu meteorologicznego Global Forecasting System uruchomianego w ośrodku NCEP-NOAA. Zbadano średnie stężenie i depozycję związków siarki oraz prawdopodobieństwo i czas dotarcia chmury zanieczyszczeń do wszystkich stolic europejskich. W ciągu 90 dni chmura zanieczyszczeń (dwutlenek siarki, popioły wulkaniczne) rozprzestrzeniła się na półkuli północnej. Zanieczyszczenia dotarły do Afryki, Morza Północnego i Europy. Przy średniej emisji 15 000 ton dwutlenku siarki na dobę maksymalna wyliczona depozycja na powierzchni Ziemi osiągnęła 0,8 g na metr kwadratowy, a ogólna depozycja 35 kiloton w obszarze domeny.
Źródło:: Archives of Environmental Protection; 2022, 48, 3; 99--108
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Influence of Parameterization of Some physical processes in Soils on Numerical meteorological Forecasts of Surface Fields
Autorzy:: Mazur, Andrzej
Duniec, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/2134727.pdf
Data publikacji:: 2017-02-10
Wydawca:: Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:: Soil-plant-water system
Hydrodynamics of porous media
parameterization schemes
multilayer soil model
Numerical weather prediction
Opis:: physical processes in soil-plant-water system are very complicated. Complex physical processes in soil, in particular interaction between soilplant-water system have signicfiant inuflence on processes in planetary Boundary layer. Changes of soil state can signicfiantly modify processes in the pBl and meteorological efilds . Since numerical models are to determine the forecast of high quality, the physical processes occurring in soil should be properly described and then appropriately introduced into a model. every process in soil occurs on a smaller scale than original model's domain, so it should be described via adequate parameterization. Overall, soil parameterizations implemented in current numerical weather prediction (NWp) model(s) were prepared almost 40 years ago, when NWp models worked with very poor resolution mesh. Since nowadays NWp works over domains of high resolution, these “old” schemes parameterization must be adequately revised. In this paper preliminary results of changes of parameterization of soil processes will be presented.
Źródło:: Miscellanea Geographica. Regional Studies on Development; 2016, 20, 4; 48-58
0867-6046
2084-6118
Pojawia się w:: Miscellanea Geographica. Regional Studies on Development
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Influence of computational grid resolution on the quality of forecasts of dangerous convection phenomena: a case study of August 11, 2017
Autorzy:: Mazur, Andrzej
Duniec, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/2166587.pdf
Data publikacji:: 2022
Wydawca:: Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:: meteorological model
supercell
high-resolution approach
convection-permitting scale
Opis:: On August 11, 2017, a violent convection phenomenon took place in northwestern Poland, i.e., a storm combined with intense rainfall and hurricane winds. This paper presents an attempt to analyze this case by using the results of a numerical weather model, at grid spacings of 7 km, 2.8 km, and 0.7 km. Various convective indicators were analyzed to assess the nature of the event. The key question the authors try to answer is: „To what extent, if any, did a tenfold increase in resolution improve the quality of the numerical forecasts?” This question, however, has not been conclusively resolved. The most likely cause of this event was a supercell rapidly moving from south to northeast. This supercell's path has been mapped (qualitatively at least) by the Supercell Detection Index at all resolutions used. As the resolution increased, the forecasted maximum gusts also increased from 25 m/s in the domain with a resolution of 7 km to 35 m/s at a resolution of 2.8 km and up to about 50 m/s at the highest resolution of 0.7 km. A key conclusion is that the results of the model at a resolution of 2.8 km are much closer to reality than at 7 km. This effect did not pertain to differences between the 2.8 km and 0.7 km models. The latter increase in resolution did not significantly improve the quality of the forecast.
Źródło:: Meteorology Hydrology and Water Management. Research and Operational Applications; 2022, 10, 2; 1--18
2299-3835
2353-5652
Pojawia się w:: Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: The Assessment of the Amount of Soil Material Deposited on the Bottom of a Dry Erosive-Denudation Valley
Autorzy:: Mazur, Andrzej
Obroślak, Radomir
Nieścioruk, Kamil
Powiązania:: https://bibliotekanauki.pl/articles/125152.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: water erosion
valley bottom
soil material accumulation
geodetic technique
Opis:: The work presents the results of research on erosion and landform changes of a bottom of a dry erosive-accumulation valley in Elizówka in 1958, 1970 and 2016. The changes have been examined with the use of geodetic topographic surveys techniques. The research field was a 480-metres long part of the valley bottom. The topographic surveys in 1958 and 1970 were conducted with longitudinal (parallel to the bottom of the valley) and cross (every 20 metres) sections method. In 2016 the modern measuring devices were used. All the results, together with coordinates of points and historical data were converted into GIS spatial layer. The altitude values formed the input data for interpolation of rasters showing changes of the topography in three periods. Three TIN models were also developed to distinguish erosion and accumulation zones plus the quantity of eroded and accumulated material. The valley on the majority of its length has been raised and has changed from V-shaped into U-shaped. Accumulation of the soil material led to levelling the bottom. Accumulation concentrates along a flow line, while soil washout mainly at the bottom of slopes. The thickest sediment layers were observed in the lowest part. For the whole 1958–2016 period a total of 3470 m³ soil material has been deposited on the area of about 1.62 ha, while in the same time only 130 m³ has been eroded (from 0.22 ha).
Źródło:: Journal of Ecological Engineering; 2019, 20, 11; 210-216
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Comparison of Free and Commercial Software in the Processing of Data Obtained from Non-Metric Cameras
Autorzy:: Kloc, Barbara
Mazur, Andrzej
Szumiło, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/1839103.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: orthophotomap
3D model
photo processing
photogrammetric application
inventory
Opis:: The main goal of the work was an attempt to compare the free and commercial photogrammetry software for processing the pictures taken with a camera drone, a traditional digital camera and a smartphone. Due to a wide range of programs on the market, four were selected for comparison (Agisoft Metashape, DroneDeploy, VisualSfM, COLMAP). Their brief description was presented, and then the photos were processed in each of them. Three sets of photographs were used for the processing (part of a residential area, photos of a building, and photos of a tree trunk). As a result, the capabilities of the selected applications were presented on the basis of various input data. Not every program was able to deliver all the desired products. Moreover, they differ depending on the software. The commercial applications have more functionalities. On the other hand, the open-source solutions allow for the development of algorithms. Working in any environment had its own characteristics. The selected applications were compared on the basis of the processing and the results obtained. Due to many aspects of their evaluation, it turned out that the research topic was very extensive. Moreover, it was found that it is very difficult to make an objective statement of the tested programs, because the same program can be scored differently, depending on the user’s needs, capabilities and knowledge.
Źródło:: Journal of Ecological Engineering; 2021, 22, 2; 213-225
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Effect of Unitary Soil Tillage Energy on Soil Aggregate Structure and Erosion Vulnerability
Autorzy:: Wojciechowski, Tomasz
Mazur, Andrzej
Przybylak, Andrzej
Piechowiak, Jarosław
Powiązania:: https://bibliotekanauki.pl/articles/125444.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: integrated soil tillage
unitary tillage energy
soil erosion
soil aggregate
Opis:: The integrated soil tillage developed in the Institute of Biosystem Engineering is based on a single pass of basic tillage, secondary tillage and sowing or planting. The integrated soil tillage enables to achieve a relatively high mechanical strength of the soil. An important element of the technology is the use of tillage roller sets which significantly influence the obtained aggregate structure and its eolic resistance. The aim of the study was to determine the influence of roller speed under various soil moisture conditions on the aggregate structure of the arable soil layer. The research was carried out on the production field in Dziećmierowo, Wielkopolska Voivodeship, Poland, on medium soil with the mechanical composition of light clay. During the research, cultivation sets with two units of Campell + Croskill platelet and studded rollers were used. For two actual soil moisture levels and five speeds within the range of 3–7 km/h, the influence of unit tillage energy at three levels of the cultivating layer (0–5 cm, 5–10 cm and 10–15 cm) was analyzed on the aggregate structure of soil and the content of aggregates with the highest resistance to wind erosion. The results of the work lead to the conclusions that it is possible to use the working speed and overloading of rollers set in integrated soil tillage trailer to manipulate the process of forming an optimal, erosion-resistant soil layer. However, it should be pointed out that for even very similar types of roller sets, the process control under different soil moisture conditions may be different and require an individual test.
Źródło:: Journal of Ecological Engineering; 2020, 21, 3; 180-185
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Development of the Edge of the Gully in the Zone Adjacent to the Field
Autorzy:: Rybicki, Roman
Obroślak, Radomir
Mazur, Andrzej
Grzywna, Antoni
Serafin, Artur
Powiązania:: https://bibliotekanauki.pl/articles/124101.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: gully erosion
gully development
Sandomierz Upland
Opis:: The development of the side arm edge of the valley-gully in Gałkowice village in the Dwikozy commune (the Opatówka catchment in the Sandomierz Upland) was investigated during the period from 2002 to 2017. An increase of fragmentation of the gully edge was found. Most of the pre-existing erosive indents increased in size (maximum of 2.8 m – about 0.2 m per year). An increase in the area of the gully by 145 m² was found. As a result, the boundary of plow tillage shifted to an average of 1.5 to 2 meters (maximum 3.8 m), which resulted in a loss of 545 m² of adjacent arable land. As the main reason for the development of the analyzed section of the gully, meltwater flows were considered.
Źródło:: Journal of Ecological Engineering; 2019, 20, 1; 238-244
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Molecular characterization and symbiotic importance of prsD gene of Rhizobium leguminosarum bv. trifolii TA1
Autorzy:: Mazur, Andrzej
Wielbo, Jerzy
Król, Jarosław
Kopcińska, Joanna
Łotocka, Barbara
Golinowski, Władysław
Skorupska, Anna
Powiązania:: https://bibliotekanauki.pl/articles/1044765.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Biochemiczne
Źródło:: Acta Biochimica Polonica; 1998, 45, 4; 1067-1073
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: The analysis of spatial variability of precipitation in Poland in the multiyears 1981–2010
Autorzy:: Grzywna, Antoni
Bochniak, Andrzej
Ziernicka-Wojtaszek, Agnieszka
Krużel, Joanna
Jóźwiakowski, Krzysztof
Wałęga, Andrzej
Ciupak, Agnieszka
Mazur, Andrzej
Obroślak, Radomir
Serafin, Artur
Powiązania:: https://bibliotekanauki.pl/articles/292589.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: climate change
kriging
Polska
precipitation
spatial variability
water resources
Opis:: The purpose of the paper is to analyze the spatial variability of precipitation in Poland in the years 1981–2010. The average annual rainfall was 607 mm. Precipitation in Poland is characterized by high spatial and temporal variability. The lowest annual precipitation was recorded in the central part of the country, where they equaled 500 mm. The highest annual precipitation totals were determined in the south, equaling 970 mm. The average precipitation in the summer half-year is 382 mm (63% of the annual total). On the basis of data from 53 climate stations, maps were made of the spatial distribution of precipitation for the period of the year and winter and summer half-year. The kriging method was used to map rainfall distribution in Poland. In the case study, cross-validation was used to compare the prediction performances of three periods. Kriging, with exponential type of semivariogram, gave the best performance in the statistical sense. Their application is justices especially in areas where landform is very complex. In accordance with the assumptions, the mean prediction error (ME), mean standardized prediction error (MSE), and root mean-square standardized prediction error (RMSSE) values are approximately zero, and root-mean-square prediction error (RMSE) and average standard error (ASE) reach values well below 100.
Źródło:: Journal of Water and Land Development; 2020, 46; 105-111
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Effects of selected factors on the outcome of rehabilitation of post-stroke patients
Wpływ wybranych czynników na efekty rehabilitacji u chorych po udarze mózgu
Autorzy:: Przysada, Grzegorz
Kwolek, Andrzej
Mazur, Artur
Powiązania:: https://bibliotekanauki.pl/articles/1938570.pdf
Data publikacji:: 2007
Wydawca:: Akademia Wychowania Fizycznego im. Bronisława Czecha w Krakowie
Tematy:: Stroke
evaluation of patients clinical status
Rehabilitation
complexity
rehabilitation results
udar mózgu
ocena stanu chorych
rehabilitacja
kompleksowosc
wyniki rehabilitacji
Opis:: The aim of the study was to evaluate the impact of selected factors, such as: gender, age, stroke type, side of paresis, time to initiation of rehabilitation, first or successive in-patient rehabilitation and severity of paresis at admission on the final clinical status of patients and on the outcome of treatment at the department of rehabilitation, district hospital.Material and methods: All 431 post-stroke patients qualified for the treatment at the department of rehabilitation between January 2002 and December 2003 were included in the study. Patients were divided into four age groups. Results of rehabilitation were analyzed in male and female groups separately. Patients were divided according to the stroke type into four groups either suffering from an ischaemic or a hemorrhagic stroke; another selection cirterion was left-sided vs. right-sided paresis. The so-called general fitness, Barthel Index and Brunnström test were used to evaluate clinical status of the patients and the progress of rehabilitation. Statistical analysis was carried out using the t-test or – alternatively – the non-parametric Wilcoxon signed rank test, analysis of variance (ANOVA) or the nonparametric Kruskal-Wallis test, and the chi-square test.Results: Based on the obtained results, it was proven that multidimensional, complex rehabilitation in a specialist centre, carried out by rehabilitation team resulted in significant improvement of post-stroke patients’ clinical status. The improvement was observed for all measurements of fitness used in the study. Analysis of the effects of rehabilitation with regard to patients’ age indicated that an improvement in general fitness, motor activity (reduction of paresis) and independency in activities of daily living was obtained in each age group. Based on the analysis conducted in groups of patients with different stroke aetiologies, it was found that effects of the treatment in patients with haemorrhagic stroke were better than in patients with ischaemic stroke, which was observed in each of the applied measures used for the evaluation of patients’ clinical status. Mean improvement observed after the treatment was greater in patients with right-sided paresis than in patients with left-sided paresis. Gender had no significant effect on the extent of rehabilitation results.Conclusions: Results of the study indicate that in post-stroke patients, gender, advanced age, stroke location, stroke type or motor skills at admission do not constitute a criterion determining the possibility of conducting rehabilitation procedures.
Źródło:: Medical Rehabilitation; 2007, 11(3); 29-37
1427-9622
1896-3250
Pojawia się w:: Medical Rehabilitation
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Extraction and application of bottom sediments in a closed cycle
Autorzy:: Mazur, Kamila
Eymontt, Andrzej
Wierzbicki, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/2048562.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: circular economy
cyanobacterial toxins
fishponds
organic fertiliser
prevention of water eutrophication
sediments
Opis:: Human activities in relation to aquatic ecosystems result in significant economic losses in the form of contamination of water sources, deteriorating its quality and therefore its availability in lakes, water bodies and even in soil. Hence the need for systematic revitalisation or reclamation of water ecosystems. Such actions, in order to be rational, require a detailed understanding of the causes, and then the use of appropriate technology. The need for the above-mentioned actions result from the weather changes that have been noticeable in recent years, as well as environmental pollutants increasing water eutrophication in reservoirs and stimulating the development of some species of cyanobacteria. These cyanobacteria can cause serious water poisoning, especially in water supply systems. Therefore, a rational, comprehensive technology for the removal of bottom sediments and their processing into organic and mineral fertiliser has been developed with properties similar to manure. It also creates opportunities to improve the structure of soils thanks to the supply of organic carbon, the loss of which was found, among others, in also in soils of Poland and EU. These new possibilities of revitalisation hitherto unknown make it possible to a large extent, compliance with environmental requirements when revitalising water reservoirs and soil.
Źródło:: Journal of Water and Land Development; 2021, 51; 265-271
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Acute pulmonary hypertension as a symptom of Bard’s syndrome and pulmonary lymphangitis carcinomatosa – rare manifestation of malignant gastric cancer
Autorzy:: Mazur, Danuta
Romanek, Janusz
Filip, Rafał
Przybylski, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/454787.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:: Bard’s syndrome
malignant gastric cancer
pulmonary hypertension
Opis:: Introduction. Acute pulmonary hypertension leading to right ventricular failure and circulatory collapse is usually caused by a pulmonary embolism. However, in extremely rare cases, similar clinical manifestations can be related to another diseases, such as lymphangitis carcinomatosa. Aim. The purpose of this paper is to report on the case of a 29-year-old male patient presented with rapidly progressing dyspnoea. Description of the case. The diagnosis of pulmonary embolism was made on the basis of echocardiographic signs of pulmonary hypertension and right ventricular (RV) dilatation, and the recommended therapy was introduced. On the suspicion of bronchopneumonia, antibiotics and steroids were applied. However, the previously stated diagnosis of pulmonary embolism was not confirmed by the angio-CT scan, which showed small diffusive lung parenchyma intra-biliary nodules (ground glass opacity) with the peripheral appearance of a tree-in-bud sign. Consecutive CT of pelvis and abdomen along with endoscopy revealed a metastatic gastric cancer with the presence of lymphangitis carcinomatosa and miliary dissemination to the lungs. The presence of pulmonary metastases in the course of disseminated gastric cancer is known in literature as Bard’s syndrome. Conclusion. Extrapulmonary malignancies, particularly gastric cancer, should be taken into consideration in differential diagnosis in patients with an acute right ventricular failure and nonspecific lesions in the respiratory system.
Źródło:: European Journal of Clinical and Experimental Medicine; 2019, 2; 179-183
2544-2406
2544-1361
Pojawia się w:: European Journal of Clinical and Experimental Medicine
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Risk estimation with the application of the matrix method during the operation of the forklift
Autorzy:: Kozińska, Monika
Radek, Norbert
Rozlach, Andrzej
Mazur, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/1830703.pdf
Data publikacji:: 2021
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: matrix method
risk estimation
forklift
operation
metoda macierzowa
szacowanie ryzyka
wózek widłowy
eksploatacja
Opis:: The paper presents issues related to the analysis of the position of a forklift operator.Hazards at the workplace were presented and risk estimation was carried out using the matrix method on the position of a forklift operator. The risk assessment using the matrix method was performed in accordance with the PN-N-18002: 2011 standard. The hazards at the forklift operator's workplace were identified and the occupational risk was assessed. In addition, the employee's personal protective equipment and security factors are also presented, which have been defined to increase the safety of work with forklifts.
Źródło:: System Safety : Human - Technical Facility - Environment; 2021, 3, 1; 337-346
2657-5450
Pojawia się w:: System Safety : Human - Technical Facility - Environment
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Three-Year Activity Report of the Replantation Service for Amputation of the Hand in Poland
Autorzy:: Żyluk, Andrzej
Jabłecki, Jerzy
Romanowski, Leszek
Mazur, Agnieszka
Powiązania:: https://bibliotekanauki.pl/articles/1396891.pdf
Data publikacji:: 2012-12-01
Wydawca:: Index Copernicus International
Tematy:: hand replantation
microsurgery
outcome measurement
Opis:: A permanent on-call service for hand amputation (Replantation Service) was established in 2010 as the initiative of the Council of Polish Society for Surgery of the Hand. It is run by three qualified hand centres in Trzebnica, Poznań and Szczecin. The aim of the study was to present a summary of the almost three-year activity of this service. Material and methods. Over this period, a total of 435 cases of total amputations, subtotal amputations and other severe injuries to the hand were referred. Of these, 290 referrals (67%) were accepted and 141 (33%) rejected. Among accepted, there were 100 total (34%) and 113 subtotal (39%) amputations; 81 patients had other, severe hand injuries, such as crush, degloving and extensive wounds involving all tissues. Results. Young and middle-age males constituted the majority of patients with the mean age of 42 years (range 2-82). The most common injury was amputation of several digits (including thumbs) in one patient - 141 cases (48%), followed by amputations from the metacarpal- to the proximal forearm level -115 (39%) and elbow/arm level - 9 cases (3%). Niniteen patients (6%) had multi-level amputation or injury of the involved extremity. Replantation of the completely amputated extremity was performed in 83 patients (28%), revascularization in 95 (32%) and in 59 (20%) primary repair of the complex injuries. In 23 cases, the repair of tissue defects was performed with flaps, mostly with greater omentum. Survival rate was of 84% for replantations and 88% for revascularizations. Conclusion. Establishing of the Replantation Service constituted a significant progress in organization of the management of the most severest upper limb injuries.
Źródło:: Polish Journal of Surgery; 2012, 84, 11; 574-581
0032-373X
2299-2847
Pojawia się w:: Polish Journal of Surgery
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Analysis of the reliability of clinical examination in predicting traumatic cerebral lesions and skull fractures in patients with mild and moderate head trauma
Autorzy:: Żyluk, Andrzej
Mazur, Agnieszka
Piotuch, Bernard
Safranow, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/1396507.pdf
Data publikacji:: 2013-12-01
Wydawca:: Index Copernicus International
Tematy:: head injury
head computer tomography
clinical decision rules
Opis:: The aim of the study was to assess the reliability of neurological examination and other factors in predicting traumatic cerebral lesions and skull fractures in patients with mild and moderate head trauma (GCS 10-15). Material and methods. Over a one-year period, 227 patients: 145 male and 82 female, aged a mean of 51 years who sustained mild or moderate head trauma (GSC 10-15) were examined neurologically and had performed head CT scans. The neurological examination as a whole and each finding of the neurological examination were tested as predictors of the presence of traumatic abnormalities in the head CT scan. Results. Post-traumatic lesions in head CT scan were found in 109 patients (48%): skull fractures in 66 of these and brain injuries in 94; fifty-eight patients had skull fracture combined with brain injury. Seventeen patients required neurosurgical intervention (hematoma evacuation). Abnormal neurological examination showed the highest reliability in identifying patients with brain injuries in CT (sensitivity 87%, specificity 79%). Of single findings, gait abnormalities and consciousness disturbances, present in sober patients, were the strongest predictors of cerebral lesions. Likewise, abnormal neurological examination was the best indicator of skull fractures (sensitivity 77%, specificity 63%). Gait abnormalities and “racoon eyes” present in alcohol intoxicated patients were the strongest individual predictors of skull fractures. Conclusion. Results of our study show neurological abnormalities as the most reliable (although not 100% accurate) in identifying patients who are likely to have brain injuries and/or skull fracture following head trauma. Use of clinical decision rules may reduce the number of head CT scans performed “just in a case”.
Źródło:: Polish Journal of Surgery; 2013, 85, 12; 699-705
0032-373X
2299-2847
Pojawia się w:: Polish Journal of Surgery
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Mazur, Andrzej." wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język