Autor: Cabaj, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Visualization as support for web honeypot data analysis
Autorzy:: Cabaj, K.
Powiązania:: https://bibliotekanauki.pl/articles/94737.pdf
Data publikacji:: 2015
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: HoneyPot systems
visualization
data mining
monitoring
systemy honeypot
wizualizacja
Opis:: The paper presents methodologies associated with visualization, which supports data analysis. Analyzed data has been gathered by HoneyPot systems deployed in the network of Institute of Computer Science. Due to the vast amounts of data, the manual analysis was almost impossible and very impractical, also considering time constraints. Introduced visualization techniques and supporting filtering features are implemented in HPMS (HoneyPot Management System). The paper describes in details two introduced methodologies which support data analysis using both charts and graphs. The first one is used for the discovery of basic activities observed by HoneyPot. The second one is used for advanced analysis of machines used during attacks concerning PhpMyAdmin software.
Źródło:: Information Systems in Management; 2015, 4, 1; 14-25
2084-5537
2544-1728
Pojawia się w:: Information Systems in Management
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Management system for dynamic analysis of malicious software
Autorzy:: Cabaj, K.
Powiązania:: https://bibliotekanauki.pl/articles/95041.pdf
Data publikacji:: 2016
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: malware
ransomware
dynamic analysis
expert system
malicious software
system ekspercki
ochrona antywirusowa
program antywirusowy
oprogramowanie złośliwe
Opis:: In the recent years, one can observe the increase in the number of malicious software (malware) samples analyzed by the antivirus companies. One explanation is associated with attacker's antivirus systems hider tactic, which modifies hostile programs form, without changing it functionality. In effect, the first step of analysis is associated with the check if a given sample is a new threat or modification of existing. Very often such simple test can be performed automatically by dedicated information system. Paper describes information system, which allows dynamic analysis of malicious sample. Presented system was developed and deployed in the Institute of Computer Science, Warsaw University of Technology. During performed security research concerning ransomware threats system proves its usefulness. Additionally, the system become a knowledge base of known malware recently analyzed by our security team.
Źródło:: Information Systems in Management; 2016, 5, 4; 473-480
2084-5537
2544-1728
Pojawia się w:: Information Systems in Management
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Formy pogrzebane w dnach dolin - na przykładzie doliny Pilicy w Niecce Niedziańskiej
Exhumed lanscape relief forms in valley bottoms: examples form the Pilica valley in the nida trought
Autorzy:: Banaskiewicz-Cabaj, K.
Cabaj, W.
Powiązania:: https://bibliotekanauki.pl/articles/905505.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Geograficzne
Źródło:: Prace Komisji Krajobrazu Kulturowego; 2007, 07
1896-1460
2391-5293
Pojawia się w:: Prace Komisji Krajobrazu Kulturowego
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Management and analytical software for data gathered from HoneyPot system
Autorzy:: Cabaj, K.
Denis, M.
Buda, M.
Powiązania:: https://bibliotekanauki.pl/articles/94827.pdf
Data publikacji:: 2013
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: HoneyPot systems
data mining
monitoring
systemy honeypot
Opis:: The paper describes details concerning systems used for analysis and the result of data gathered from two various HoneyPot systems, implemented at Institute of Computer Science. The first system uses data mining techniques for the automatic discovery of interesting patterns in connections directed to the HoneyPot. The second one is responsible for the collection and the initial analysis of attacks dedicated to the Web applications, which nowadays is becoming the most interesting target for cybercriminals. The paper presents results from almost a year of usage, with implemented prototypes, which prove it's practical usefulness. The person performing analysis improves effectiveness by using potentially useful data, which is initially filtered from noise, and automatically generated reports. The usage of data mining techniques allows not only detection of important patterns in rapid manner, but also prevents from overlooking interesting patterns in vast amounts of other irrelevant data.
Źródło:: Information Systems in Management; 2013, 2, 3; 182-193
2084-5537
2544-1728
Pojawia się w:: Information Systems in Management
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Neurotransmitters detection using a fluorescence-based sensor with graphene quantum dots
Autorzy:: Baluta, S.
Cabaj, J.
Malecha, K.
Powiązania:: https://bibliotekanauki.pl/articles/175014.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: sensor
dopamine
fluorescence
Förster resonance energy transfer
quantum dots
Opis:: In the paper, the development and performance of an optical sensor for detection of neurotransmitters (dopamine) is presented. The concentration of dopamine is measured basing on fluorescence quenching of graphene quantum dots. In the sensor, the dopamine molecules coat the graphene quantum dots surface – in result, the quenching of fluorescence occurs due to the Förster resonance energy transfer. The changes in fluorescence correspond to specific concentrations of the neurotransmitter in tested samples, so it is possible to accurately determine the concentration of dopamine in the sample.
Źródło:: Optica Applicata; 2017, 47, 2; 225-231
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Wpływ wzbogacenia drożdży piwowarskich w magnez na ich aktywność fermentacyjną
The effect of enriching brewers yeast with magnesium on its fermentation activity
Autorzy:: Haberowa, H.
Raczyńska-Cabaj, A.
Grajcar, K.
Powiązania:: https://bibliotekanauki.pl/articles/1201235.pdf
Data publikacji:: 2005
Wydawca:: Polskie Towarzystwo Technologów Żywności
Tematy:: aktywnosc fermentacyjna
drozdze piwowarskie
fermentacja
wzbogacanie drozdzy
brzeczka
magnez
browarnictwo
Opis:: Celem pracy było określenie wpływu dodatku magnezu w postaci soli MgCl2·6H2O do podłoży hodowlanych, na wzrost inoculum i właściwości fermentacyjne drożdży piwowarskich Saccharomyces cerevisiae, szczep nr 1 pochodzący z kolekcji własnej. Do hodowli inoculum zastosowano dwa podłoża: YPG jako kontrolne i brzeczkę słodową, które wzbogacono w 1,25 g Mg/dm3. Hodowle prowadzono metodami: a) stacjonarną - 48 h b) z napowietrzaniem przez 24 i 48 h; c) z napowietrzaniem przez 24 h i następnie 24 h bez napowietrzania; w temp. 28°C i pH 5,0 (YPG) oraz 5,5 (brzeczka). Jak wykazano we wcześniejszych badaniach, metodą stacjonarną uzyskiwano bardzo dobre wyniki wiązania magnezu przez komórki, przy jednoczesnym niskim przyroście biomasy drożdży. Stwierdzono, że niezależnie od rodzaju podłoża, wzbogacenie w magnez stymulowało wzrost i produkcję biomasy drożdży, przy czym plon biomasy był wyższy na podłożu YPG w porównaniu z brzeczką. Ponadto magnez był lepiej wiązany przez komórki w hodowli inoculum na podłożu YPG. Użycie do fermentacji inoculum hodowlanego na brzeczce pozwoliło na uzyskanie wyższego odfermentowania, przy czym wzbogacenie w magnez nie miało istotnego znaczenia.
The objective of this study was to investigate an effect of magnesium (MgCl2·6H2O) added to the culture medium on the growth of inoculum and the fermentation properties of brewer's yeast Saccharomyces cerevisiae, strain N°1 (originating from the authors' own collection). Two culture media were used to grow inoculum: YPG, which was a control medium, and a brewer's wort. The two media were enriched with magnesium by adding 1.25 g Mg/dm3 to them. The yeast cultures were developed using the following methods: a) a stationary method - 48 hrs; b) a method with the aeration during a period of 24 hrs and 48 hrs; c) a method with the aeration during the 24 hrs, the next 24 hr period without aeration; at 28°C, and with a pH value equaling 5,0 in the case of the YPG, and 5.5 in the case of the wort. According to what has already been proved in previous experiments, the rate of magnesium being absorbed by cells was very high, and, at the same time, the biomass yield of yeast was low. It was stated that regardless of the type of medium, the enrichment with magnesium stimulated the growth and biomass of the yeast; the biomass yield was higher on the YPG medium than on the brewer's wort. Furthermore, the magnesium was better absorbed by cells in the YPG medium. When inoculum grown on the brewery wort was used, the level of the brewery fermentation was higher, although the increase in the content of magnesium in the yeast was of no significant effect.
Źródło:: Żywność Nauka Technologia Jakość; 2005, 12, 2; 127-139
1425-6959
Pojawia się w:: Żywność Nauka Technologia Jakość
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Fallow deer (Dama dama) as a new intermediate host for Sarcocystis cruzi
Autorzy:: Bien, J.
Gozdzik, K.
Moskwa, B.
Cabaj, W.
Powiązania:: https://bibliotekanauki.pl/articles/6361.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: fallow deer
Dama dama
new host
Sarcocystis cruzi
protozoan parasite
parasite
animal parasite
Źródło:: Annals of Parasitology; 2016, 62, Suppl.
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Heterotrophic bacteria from brackish water of the Southern Baltic Sea: biochemical and molecular identification and characterisation
Autorzy:: Cabaj, A.
Palinska, K.
Kosakowska, A.
Kurlenda, J.
Powiązania:: https://bibliotekanauki.pl/articles/48857.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: molecular identification
surface water
biochemical identification
rDNA sequence analysis
Baltic Sea
Bacillaceae
brackish water
heterotrophic bacteria
Opis:: Six bacterial strains isolated from the surface water of the southern Baltic Sea were described on the basis of their morphological, physiological and biochemical features, and were classified on the basis of 16S rDNA sequence analysis. Comparative analyses of the 16S rDNA sequences of five of the six bacterial strains examined displayed a ≥98% similarity to the sequences available in the NCBI GenBank. The 16S rDNA sequence of strain 2 shared only a 96% similarity with other published sequences, which suggests that this is a new, hitherto unknown species. The isolated heterotrophic bacteria belong to the families Bacillaceae (strain 1), Flexibacteriaceae (strain 2), Sphingomonadaceae (strains 3, 5), Micrococcaceae (strain 4) and Aurantimonadaceae (strain 6). This is the first study in which the polyphasic approach has been applied to the identification of heterotrophic bacteria from the brackish waters of the Gulf of Gdańsk and Gdańsk Deep.
Źródło:: Oceanologia; 2006, 48, 4
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Seroprevalence of Neospora caninum in free living and farmed red deer [Cervus elaphus] in Poland
Autorzy:: Gozdzik, K
Jakubek, E.B.
Bjorkman, C.
Bien, J.
Moskwa, B.
Cabaj, W.
Powiązania:: https://bibliotekanauki.pl/articles/32072.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Polska
free living red deer
farmed red deer
red deer
Cervus elaphus
seroprevalence
Neospora caninum
ELISA test
immunoblot
animal disease
animal infection
Opis:: Serum samples from 47 free living and 106 farmed red deer (Cervus elaphus) from the Mazurian Lake District in north-east Poland were investigated for the presence of antibodies to Neospora caninum. A modified Neospora iscom-ELISA was used for initial screening. All sera with optical density (OD) values exceeding 0.400 absorbance units were further investigated by Western blot analysis. Eighteen sera were positive in both tests. Six of these were from free living and 12 from farmed animals giving prevalence of 13 and 11%, respectively. This is the first report of N. caninum infection in farmed and free-living red deer living in the same region where neosporosis was confirmed in cattle and the first evidence of exposure to the parasite in red deer in Poland.
Źródło:: Polish Journal of Veterinary Sciences; 2010, 13, 1; 117-120
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The estimation of different ELISA procedures for serodiagnosis of human trichinellosis
Autorzy:: Moskwa, B.
Bień, J.
Cabaj, W.
Korinkova, K.
Koudela, B.
Kacprzak, E.
Stefaniak, J.
Powiązania:: https://bibliotekanauki.pl/articles/2144348.pdf
Data publikacji:: 2006
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: parasite
human disease
serodiagnosis
diagnosis
trichinellosis
ELISA test
zoonotic disease
ELISA procedure
excretory-secretory antigen
Trichinella spiralis
human outbreak
Opis:: Introduction. The most important confirmative diagnostic test for trichinellosis is the presence of the muscle larvae in a tissue biopsy but this direct method has a low sensitivity of light and moderate infections. The aim of presented study was to compare the usefulness of the results obtained by three ELISA procedures for Trichinella spp. diagnosis in human outbreaks. Materials and methods. All sera (cases and controls) were tested for anti-Trichinella antibodies (immunoglobulin G) using commercially available Novatec KIT and two other ELISA procedures based on excretory-secretory (ES) antigens on Trichinella spiralis muscle larvae. The main differences in ELISA procedures were: the protein concentration in antigen, dilution of human serum samples, conjugate and the time of conjugate incubation. Additional differences were noticed in ES antigen preparation procedures as well as in T. spiralis isolates used in these procedures. Serum samples were obtained from 22 symptomatical patients from Poznań region (West Poland), geographic area where human outbreak had occurred. Control serum samples were obtained from 20 patients from an open population from a non endemic trichinellosis area. Results. The results were analyzed in terms of both: statistical and epidemiological point of view. Linear regression analysis and correlations coefficient r between OD values of total 22 patients obtained in three ELISA procedures were positive and high statistically significant. Three ELISA procedures revealed different cut-off values and positivity rates for outbreak. However, the majority of positive samples were found as positive in three procedures, but some of them were positive in two or one procedure only. These individual variability in sera reactivity observed in three ELISA procedures could be very important from epidemiological point of view.
Źródło:: Wiadomości Parazytologiczne; 2006, 52, 3; 231-238
0043-5163
Pojawia się w:: Wiadomości Parazytologiczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The estimation of different ELISA procedures for serodiagnosis of human trichinellosis
Autorzy:: Moskwa, B
Bien, J.
Cabaj, W.
Korinkova, K.
Koudela, B.
Kacprzak, E.
Stefaniak, J.
Powiązania:: https://bibliotekanauki.pl/articles/839966.pdf
Data publikacji:: 2006
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: parasite
human disease
serodiagnosis
diagnosis
trichinellosis
ELISA test
zoonotic disease
ELISA procedure
excretory-secretory antigen
Trichinella spiralis
human outbreak
Opis:: Introduction. The most important confirmative diagnostic test for trichinellosis is the presence of the muscle larvae in a tissue biopsy but this direct method has a low sensitivity of light and moderate infections. The aim of presented study was to compare the usefulness of the results obtained by three ELISA procedures for Trichinella spp. diagnosis in human outbreaks. Materials and methods. All sera (cases and controls) were tested for anti-Trichinella antibodies (immunoglobulin G) using commercially available Novatec KIT and two other ELISA procedures based on excretory-secretory (ES) antigens on Trichinella spiralis muscle larvae. The main differences in ELISA procedures were: the protein concentration in antigen, dilution of human serum samples, conjugate and the time of conjugate incubation. Additional differences were noticed in ES antigen preparation procedures as well as in T. spiralis isolates used in these procedures. Serum samples were obtained from 22 symptomatical patients from Poznań region (West Poland), geographic area where human outbreak had occurred. Control serum samples were obtained from 20 patients from an open population from a non endemic trichinellosis area. Results. The results were analyzed in terms of both: statistical and epidemiological point of view. Linear regression analysis and correlations coefficient r between OD values of total 22 patients obtained in three ELISA procedures were positive and high statistically significant. Three ELISA procedures revealed different cut-off values and positivity rates for outbreak. However, the majority of positive samples were found as positive in three procedures, but some of them were positive in two or one procedure only. These individual variability in sera reactivity observed in three ELISA procedures could be very important from epidemiological point of view.
Źródło:: Annals of Parasitology; 2006, 52, 3
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki