Access status: Open Access ,
Współwystępowanie mineralizacji kruszcowej i węglowodorów. Przykład dolomitów dewońskich w Józefce w Górach Świętokrzyskich
(2018) Pawlikowski, Maciej ; Nieć, Marek
Ore and non-ore mineralization in cracks filled with hydrocarbons in the dark grey Upper-Devonian limestone has been conformed in the Jozefka quarry of Devonian limestones and dolomite in the town Góra near Kielce. Hydrocarbons in dolomite are scattered, giving the limestone a dark colour. The coexistence of ore and hydrocarbon mineralization suggest their common origin.
Access status: Open Access ,
Biomineralogia zębów mumii egipskich
(2018) Pawlikowski, Maciej
In the literature so far, there has been little information on mineralogical studies of teeth from old cemeteries, such as the tombs of Egyptian mummies. This publication adds to the knowledge in the field of mineralogical studies regarding vital and posthumous changes in the teeth of the people of Old and New Kingdom of Egypt. It shows the phenomena occurring in historical teeth, which are similar to those occuring in modern times. The research was conducted on approximately a dozen teeth, and the publication presents only selected, particularly interesting phenomena.
Access status: Open Access ,
Badania mineralogiczno-petrograficzne i geochemiczne rud żelaza i żużli historycznego hutnictwa. Dolina rzeki Kamp. Dolna Austria
(2018) Pawlikowski, Maciej ; Karwowski, Maciej; Putzgruber, Gerhard; Bożęcki, Piotr
The article reports on the early results of studies on iron ores and slags originating from ancient iron production site discovered in the region of Eisengraberamt in Lower Austria. Additionally, an experimental iron smelting based on the locally collected iron ores was conducted. Iron ores, archaeological material (ancient slags) and experimentally produced iron and slags were subject of mineralogical-petrographic and geochemical examinations. The obtained results may indicate that the La Tène culture settlement in the valley of the river Kamp in Lower Austria could be connected with presence of local deposits of iron ores.
Access status: Open Access ,
Zjawisko biomineralizacji chrząstki stawu biodrowego
(2018) Pawlikowski, Maciej
Mineralogical studies were performed on cartilage taken from femoral heads removed during total hip arthroplasty. The tests were done using SEM and EDS methods, with particular focus on both the external, »working« surface of the cartilage and its internal part, attached to the femoral head. Mineralogical tests were also performed on the bones under the cartilage and the cartilage itself Obtained results suggest that there is a transfer of elements released from the bone into the cartilage in the process of osteoporosis, and crystallization of those elements takes the form of mineral grains. Cartilage may also be mineralized from the direction of the joint (through the mineralized synovial fluid). Biomineralisation visible in cartilage in the form of grains, nodules and chondromalacias is preceded by the hidden mineralization of cartilage collagen. Cartilage biomineralization develops where the cartilage collagen structure has been damaged, which may be caused by excessive joint stress, but also other reasons (inflammation etc.). In the early stages of development, cartilage biomineralization is only observed in phase and structural analyzes because it does not appear macroscopically. X-ray diffraction patterns of such cartilage reveal d$_{hkl}$ reflections typical for phosphates from the apatite group. Change in the distance of cartilage collagen d$_{hkl}$ occurs. That proves that the structure of the cartilage collagen reorganizes as it mineralizes. It can be assumed that the cartilage biomineralization process is similar in other joints.
Access status: Open Access ,
Inżynieria mineralna (agromineralogia). Wykorzystanie minerałów jako środków ochrony roślin
(2018) Pawlikowski, Maciej
Grapes of the Sibona and Regent varieties, affected by mold, underwent mineralogical and chemical studies. Observations were described. Experimental studies were carried out where the fungus (Neonectria galligena strain) was cultivated on mineral substrates. It was determined that some mineral mixtures inhibit fungal growth, which may encourage the use of certain minerals as plant protection agents.
Access status: Open Access ,
Badania mineralogiczno-geochemiczne złota z Podlesia-Gęstwiny w Górach Złotych, Dolny Śląsk, Polska
(2018) Pawlikowski, Maciej ; Czarnecka, Katarzyna
Mineralogical investigation of small grains of gold present at sands and gravels of Podlesie-Gestwina (Golden Mountains- South Poland) were performed using SEM and EDS methods. Results document high concentration of gold and small admixture of Mg, Pb, Ag, and F. Petrographic compozition of sediments was determined too. The main component is represented by metamorphic rocks (amphiobolites, gnaisess and metamorphic shists.
Access status: Open Access ,
Biomineralogiczne zjawiska (kalcyfikacji) tętnic
(2018) Pawlikowski, Maciej
Biomineralization of tissues includes both mineralization processes that are necessary for the functioning of the organism and those that are harmful for it. This article discusses both types of mineralization, with particular focuson the occurrence of the so-called crystallization centers, i.e. places where the mineralization begins. Primary and secondary crystallization centers are distinguished. Characteristics of developing biomineralization and its consequences are discussed.
Access status: Open Access ,
Biomineralogy of cancer
(2018) Pawlikowski, Maciej
Access status: Open Access ,
Mineralogia i chemia gleb ze stanowiska archeologicznego w Babim Dole Borczu
(2018) Pawlikowski, Maciej
Mineralogical examination of soil present on archaeological site (cemetery) at Babi Dół - Borcz were performed. Alternation of minerals and migration of elements was determined using microscope, SEM, EDS methods. Elements dissolved at the zone of podsolization present just under organic soli where washed up to lower zone of cementation. Together with vertical migration of elements down was recognized horizontal migration of elements from tombs of cemetery (Cu and P).
Access status: Open Access ,
Zjawiska biomineralogiczne w endoprotezach stawu biodrowego
(2018) Pawlikowski, Maciej
Tests were performed on elements of hip joint endoprostheses regarding aging of the materials, structures of the metals as well as the cements used to fix the implant to the bone. »Worn out« elements of endoprostheses after different periods of functioning were also studied It was determined that aging of the polymers leads to their cracking, which shortens the time of proper functioning of the acetabula and the whole artificial joints. In the »working« metal elements (femoral heads) creation of micro slag bits in the steel was observed. Those bits break out from the steel during the functioning of the hip joint, damaging the surface finishing of the head of the implant and the inner surface of the acetabulum. Long-term load on the acetabula leads to changes in the atomic structure of the polypropylene that they are built of. That causes the acetabula to wear out faster. Two-component fixing cements that were tested contained air bubbles as a result of mixing the components. Their presence weakens the endoprostheses stabilization, accelerating the necessity to replace it.

ARCHIWALNE TYTUŁY

Czasopisma naukowe AGH (tytuły archiwalne) - roczniki, numery i artykuły.

AGH Drilling, Oil, Gas

AGH Journal of Mining and Geoengineering

Automatyka

Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering

Ekonomia Menedżerska

Elektrotechnika i Elektronika

Geodezja

Geologia

Górnictwo i Geoinżynieria

Inżynieria Środowiska

Mechanics

Mechanics and Control

Metallurgy and Foundry Engineering

Telekomunikacja Cyfrowa

Total Logistic Management

Wiertnictwo Nafta Gaz

Zagadnienia Techniczno-Ekonomiczne

TYTUŁY AKTUALNE

Browse

Filters

Advanced Search

Filter by

Settings

Sort By

Results per page

Search Results