Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Pawlak, Krzysztof" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-10 z 10
    Tytuł:
    Plasma thyroid hormones and corticosterone levels in blood of chicken embryos and post hatch chickens exposed during incubation to 1800 MHz electromagnetic field
    Autorzy:
    Pawlak, Krzysztof
    Sechman, Andrzej
    Nieckarz, Zenon
    Powiązania:
    https://bibliotekanauki.pl/articles/2178802.pdf
    Data publikacji:
    2014-01-01
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    electromagnetic fields
    mobile phone
    thyroid hormone
    corticosterone
    chicken embryo
    Opis:
    Introduction: This study attempted to determine the effect of a 1800 MHz electromagnetic field (EMF) (only carrier frequency) on thyroxine (T₄), triiodothyronine (T₃) and corticosterone (CORT) concentrations in the blood plasma of chick embryos, and to investigate the effect of electromagnetic field (EMF) exposure during embryogenesis on the level of these hormones in birds that are ready for slaughter. Material and Methods: Throughout the incubation period, embryos from the experimental group were exposed to a 1800 MHz EMF with power density of 0.1 W/m², 10 times during 24 h for 4 min. Blood samples were collected to determine T₄, T₃ and CORT concentrations on the 12th (E12) and 18th (E18) day of incubation, from newly hatched chicks (D1) and from birds ready for slaughter (D42). Results: The experiment showed that T₄ and T₃ concentrations decreased markedly and CORT levels increased in the embryos and in the newly hatched chicks exposed to EMF during embryogenesis. However, no changes were found in the level of the analyzed hormones in the birds ready for slaughter. Differences in T₄ and T₃ plasma concentrations between the EMF-exposed group and the embryos incubated without additional EMF were the highest in the newly hatched chicks, which may be indicative of the cumulative effect of electromagnetic field on the hypothalamo-pituitary-thyroid axis (HPT). Discussion: The obtained results suggest that additional 1800 MHz radio frequency electromagnetic field inhibits function of HPT axis, however, it stimulates hypothalamo- pituitary-adrenal axis by inducing adrenal steroidogenic cells to synthesize corticosterone. Further investigations are needed to elucidate the mechanisms by which radio EMFs affect HPT and HPA axis function in the chicken embryos.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2014, 27, 1; 114-122
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of geomagnetic field deprivation on germination and early growth of maize variety San (Zea mays L. cv. San)
    Autorzy:
    Tombarkiewicz, Barbara
    Możdżeń, Katarzyna
    Kanik, Weronika
    Bojarski, Bartosz
    Pawlak, Krzysztof
    Lis, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/2148497.pdf
    Data publikacji:
    2019-03-30
    Wydawca:
    Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
    Tematy:
    geomagnetic field deprivation
    germination
    maize seedlings
    Opis:
    The geomagnetic field (GMF) represents one of the major environmental factors which may suffer either natural or anthropogenic disturbances. According to available literature data, many plants species responds to GMF changes and its ab-normalities can adversely affect live organisms. The aim of the study was to investigate the influence of GMF deprivation on se-lected morphological and physiological parameters of maize vari-ety San (Zea mays L. cv. San). The examined parameters included germination capacity, seedling growth, fresh and dry weight, the water content and the level of disorganization of seedling cell membranes.The obtained results suggest that GMF deprivation caused a reduction of germination capacity of maize. Moreover, roots of seedlings growing under disturbed GMF conditions (GMF inten-sity approx. 12 μT) were significantly longer as compared to the control group (GMF intensity approx. 38–42 μT). Fresh weight, dry weight, and coleoptiles length showed no differences among the groups. However, significantly lower electrolyte leakage was observed in maize seedlings of the experimental group.
    Źródło:
    Polish Journal of Agronomy; 2019, 36; 3-7
    2081-2787
    Pojawia się w:
    Polish Journal of Agronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inconsistencies in the Production Process Resulting From the Employment Structure
    Autorzy:
    Nowacki, Krzysztof
    Pawlak, Szymon
    Powiązania:
    https://bibliotekanauki.pl/articles/27315797.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    production
    production planning
    underestimation
    produkcja
    planowanie produkcji
    procesy produkcyjne
    Opis:
    Underestimating the duration of the production process is one of the basic factors determining the occurrence of delays in the duration of individual operations included in the production process. Occurrence of underestimation of production time brings many negative effects, which include, among others: underestimation of the company's production capacity, accumulation of intermediate stocks, impeded planning of the production process (scheduling of the production process) and increase of production costs. The problem of erroneous estimation of the duration of the production process is most often found in production plants specializing in serial or mass production, implemented in a parallel or series-parallel system. The basic causes that underestimate the duration of the production process include errors in production scheduling, incorrect determination of durations of individual operations carried out as part of the analyzed production process, complexity of production operations and employment structure. The occurrence of delays in the production process can also be affected by accident events that generate underestimation and costs for the enterprise (including social and economic costs). In many cases, many algorithms are used to reduce underestimation and optimization and scheduling of the entire production process. The publication presents an analysis of the production process in which the duration of the production process is underestimated, taking into account the employment structure in the manufacturing company. The analyzes allow to determine the level of underestimation of operations of the production process depending on the form of employment (steel workers – employed under a contract of employment in the production plant, and temporary workers employed by temporary work agencies), identification of the reasons for the underestimation of individual production positions and the length of their time occurrence.
    Źródło:
    New Trends in Production Engineering; 2019, 2, 2; 205-213
    2545-2843
    Pojawia się w:
    New Trends in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Titus Flavius Clemens’ Stance on Wine as Expressed in Paedagogus
    Autorzy:
    Dybała, Jolanta
    Jagusiak, Krzysztof
    Pawlak, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/682134.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    Titus Flavius Clemens
    early Christianity
    wine
    principle of moderation
    the golden mean (μεσότης)
    Opis:
    Titus Flavius Clemens was a philosopher and Christian theologian from the period of the 2nd–3th century. The aim of this paper is to present his view on the subject of wine and his recommendations on wine consumption as described in his work entitled Paedagogus. In this work Titus Flavius Clemens focuses primarily on the moral side of drinking wine. He is a great supporter of the ancient principle of moderation, or the golden mean (μεσότης). We also find its traces in his recommendations regarding the drinking of wine. First of all, he does not require Christians to be abstinent. Although he considers water as the best natural beverage to satisfy thirst, he does not make them reject God’s wine. The only condition he sets, however, is to maintain moderation in drinking it. He recommends diluting wine with water, as the peaceful Greeks always did, unlike the war-loving barbarians who were more prone to drunkenness. On the other hand, Titus Flavius Clemens warns the reader against excessive dilution of wine, so that it does not turn out to be pure water. He severely criticizes drunkenness, picturesquely presenting the behavior of drunks, both men and women. Wine in moderation has, in his opinion, its advantages – social, familial and individual. It makes a person better disposed to himself or herself, kinder to friends and more gentle to family members. Wine, when consumed in moderation, may also have medicinal properties. Clemens is well aware of this fact and in his work he cites several medical opinions on the subject. Unfortunately, in Paedagogus we find little information about wine as a food product / as an everyday bevarage. The input on the subject is limited to the list of exclusive, imported wines. What is worth noting, Titus Flavius Clemens appears to be a sommelier in this way.
    Źródło:
    Studia Ceranea; 2019, 9; 187-205
    2084-140X
    2449-8378
    Pojawia się w:
    Studia Ceranea
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Testing of the torsional stiffness of the passenger car frame and its validation by means of finite element analysis
    Autorzy:
    Podkowski, Krzysztof
    Małczuk, Adrian
    Stasiak, Andrzej
    Pawlak, Maciej
    Powiązania:
    https://bibliotekanauki.pl/articles/263004.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    vehicle torsional stiffness
    FEM
    FEA
    validation
    passive safety of the vehicle
    Opis:
    The paper presents the results of the conducted tests of torsional stiffness of the VOSCO S106 passenger car, as well as the validation process of these tests by means of numerical analyzes using the FEM finite element method. The most important element of the vehicle structure is the part of the spatial frame or the safety cage. Engine, brake system, fuel system and steering system, suspension as well as body and parts, their mounting nodes, hinges, locks, etc. are attached to the frame. The frame must therefore have adequate strength to protect the driver in the event of a tipover or impact. The frame is usually made of steel pipes with the prescribed dimensions and strength according to regulations. The torsional stiffness of the vehicle chassis has a significant influence on its driveability and therefore is an important parameter to measure. In this article, the torsional stiffness of the vehicle frame is calculated experimentally, which was then verified by finite element analysis (FEM) using the Altair HyperWorks program.
    Źródło:
    Archiwum Motoryzacji; 2019, 85, 3; 83-101
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Knee joint position sense in physically active patients after ACL reconstruction
    Autorzy:
    Pawlak, Dawid
    Wysota, Aleksandra
    Furmanek, Mariusz
    Ficek, Krzysztof
    Juras, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/1054848.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    anterior cruciate ligament
    joint position sense
    knee
    reconstruction
    Opis:
    The term “proprioception” is defined as the conduction of sensory information deriving from proprioceptors that have an impact on conscious sensations, posture and trans-segmental sense. An ACL injury may lead to functional knee joint instability. According to research, this may result in impaired movement sensation and joint position. The purpose of this study was to evaluate the joint position sense (JPS) in patients before arthroscopic ACL reconstruction and 5 months after the surgery. The examinations were conducted in a group of twelve specifically selected male patients. The examination procedure consisted of JPS measurement in both lower limbs (the operated and the healthy one) during active extension in a range of angles: 30, 45, 60°. The level of significance was: p < 0.05. The analysis of variance performed for repeated measurements (ANOVA) did not indicate any statistically significant differences of JPS in comparisons made between the operated and the healthy limb. Statistical values for the absolute, relative, and variable errors were p = 0.7684, p = 0.1546, p = 0.5694 respectively. The obtained results do not indicate any limitation of proprioception in patients with ACL injury before the intervention or half a year later.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2014, 7, 3; 65-72
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Subjective vs objective evaluation of knee stability in patients before and after anterior cruciate ligament reconstruction
    Autorzy:
    Wysota, Aleksandra
    Pawlak, Dawid
    Ficek, Krzysztof
    Ficek, Joanna
    Juras, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/1055185.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    Anterior cruciate ligament (ACL)
    IKDC 2000 score
    Lysholm score scale
    arthrometric measurement
    Opis:
    Every year, the number of anterior cruciate ligament ruptures increases considerably. The present analysis compares patients’ subjective sensations after the ACL injury to an objective arthrometric examination. The subjective evaluation of the knee-joint condition was performed using the Lysholm score scale and IKDC 2000 scale, whereas the objective evaluation was performed using a GNRB device to obtain an arthrometric measurement. Both measurement methods were performed before ACL reconstruction and after the rehabilitation process of ±11.5 months. The following research was conducted on a group of 8 patients who underwent anterior cruciate ligament reconstruction. Statistical analysis did not reveal any significant differences between the arthrometric examination and the subjective score scales. The test indicated the significant differences between the score scales questionnaires completed before and after the surgery. The conclusions that can be drawn from the present analysis show us the importance of using subjective evaluation devices. Despite the lack of significance in the examination performed with the objective device, the self-evaluation of knee-joint efficiency made by the patient indicated a significant improvement.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2014, 6, 2; 59-66
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evolution Of The Results Of 1500 Liver Transplantations Performed In The Department Of General, Transplant And Liver Surgery Medical University Of Warsaw
    Autorzy:
    Krawczyk, Marek
    Grąt, Michał
    Grąt, Karolina
    Wronka, Karolina
    Krasnodębski, Maciej
    Stypułkowski, Jan
    Masior, Łukasz
    Hołówko, Wacław
    Ligocka, Joanna
    Nyckowski, Paweł
    Wróblewski, Tadeusz
    Paluszkiewicz, Rafał
    Patkowski, Waldemar
    Zieniewicz, Krzysztof
    Pączek, Leszek
    Milkiewicz, Piotr
    Ołdakowska-Jedynak, Urszula
    Najnigier, Bogusław
    Dudek, Krzysztof
    Remiszewski, Piotr
    Grzelak, Ireneusz
    Kornasiewicz, Oskar
    Kotulski, Marcin
    Smoter, Piotr
    Grodzicki, Mariusz
    Korba, Michał
    Kalinowski, Piotr
    Skalski, Michał
    Zając, Krzysztof
    Stankiewicz, Rafał
    Przybysz, Marta
    Cieślak, Bartosz
    Nazarewski, Łukasz
    Nowosad, Małgorzata
    Kobryń, Konrad
    Wasilewicz, Michał
    Raszeja-Wyszomirska, Joanna
    Piwowarska, Jolanta
    Giercuszkiewicz, Dorota
    Sańko-Resmer, Joanna
    Rejowski, Sławomir
    Szydłowska-Jakimiuk, Monika
    Górnicka, Barbara
    Wróblewska-Ziarkiewicz, Bogna
    Mazurkiewicz, Michał
    Niewiński, Grzegorz
    Pawlak, Jacek
    Pacho, Ryszard
    Powiązania:
    https://bibliotekanauki.pl/articles/1395614.pdf
    Data publikacji:
    2015-05-01
    Wydawca:
    Index Copernicus International
    Tematy:
    liver transplantation
    survival
    outcomes
    donors
    center experience
    center volume
    Opis:
    Liver transplantation is a well-established treatment of patients with end-stage liver disease and selected liver tumors. Remarkable progress has been made over the last years concerning nearly all of its aspects. The aim of this study was to evaluate the evolution of long-term outcomes after liver transplantations performed in the Department of General, Transplant and Liver Surgery (Medical University of Warsaw). Material and methods. Data of 1500 liver transplantations performed between 1989 and 2014 were retrospectively analyzed. Transplantations were divided into 3 groups: group 1 including first 500 operations, group 2 including subsequent 500, and group 3 comprising the most recent 500. Five year overall and graft survival were set as outcome measures. Results. Increased number of transplantations performed at the site was associated with increased age of the recipients (p<0.001) and donors (p<0.001), increased rate of male recipients (p<0.001), and increased rate of piggyback operations (p<0.001), and decreased MELD (p<0.001), as well as decreased blood (p=0.006) and plasma (p<0.001) transfusions. Overall survival was 71.6% at 5 years in group 1, 74.5% at 5 years in group 2, and 85% at 2.9 years in group 3 (p=0.008). Improvement of overall survival was particularly observed for primary transplantations (p=0.004). Increased graft survival rates did not reach the level of significance (p=0.136). Conclusions. Long-term outcomes after liver transplantations performed in the Department of General, Transplant and Liver Surgery are comparable to those achieved in the largest transplant centers worldwide and are continuously improving despite increasing recipient age and wider utilization of organs procured from older donors.
    Źródło:
    Polish Journal of Surgery; 2015, 87, 5; 221-230
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    1000 Liver Transplantations at the Department of General, Transplant and Liver Surgery, Medical University of Warsaw - Analysis of Indications and Results
    Autorzy:
    Krawczyk, Marek
    Grąt, Michał
    Barski, Krzysztof
    Ligocka, Joanna
    Antczak, Arkadiusz
    Kornasiewicz, Oskar
    Skalski, Michał
    Patkowski, Waldemar
    Nyckowski, Paweł
    Zieniewicz, Krzysztof
    Grzelak, Ireneusz
    Pawlak, Jacek
    Alsharabi, Abdulsalam
    Wróblewski, Tadeusz
    Paluszkiewicz, Rafał
    Najnigier, Bogusław
    Dudek, Krzysztof
    Remiszewski, Piotr
    Smoter, Piotr
    Grodzicki, Mariusz
    Korba, Michał
    Kotulski, Marcin
    Cieślak, Bartosz
    Kalinowski, Piotr
    Gierej, Piotr
    Frączek, Mariusz
    Rdzanek, Łukasz
    Stankiewicz, Rafał
    Kobryń, Konrad
    Nazarewski, Łukasz
    Leonowicz, Dorota
    Urban-Lechowicz, Magdalena
    Skwarek, Anna
    Giercuszkiewicz, Dorota
    Paczkowska, Agata
    Piwowarska, Jolanta
    Gelo, Remigiusz
    Andruszkiewicz, Paweł
    Brudkowska, Anna
    Andrzejewska, Renata
    Niewiński, Grzegorz
    Kilińska, Beata
    Zarzycka, Aleksandra
    Nowak, Robert
    Kosiński, Cezary
    Korta, Teresa
    Ołdakowska-Jedynak, Urszula
    Sańko-Resmer, Joanna
    Foroncewicz, Bartosz
    Ziółkowski, Jacek
    Mucha, Krzysztof
    Senatorski, Grzegorz
    Pączek, Leszek
    Habior, Andrzej
    Lechowicz, Robert
    Polański, Sławomir
    Leowska, Elżbieta
    Pacho, Ryszard
    Andrzejewska, Małgorzata
    Rowiński, Olgierd
    Kozieł, Sławomir
    Żurakowski, Jerzy
    Ziarkiewicz-Wróblewska, Bogna
    Górnicka, Barbara
    Hevelke, Piotr
    Michałowicz, Bogdan
    Karwowski, Andrzej
    Szczerbań, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/1396689.pdf
    Data publikacji:
    2012-06-01
    Wydawca:
    Index Copernicus International
    Tematy:
    liver transplantation
    indications
    results
    mortality
    Opis:
    The aim of the study was to analyze indications and results of the first one thousand liver transplantations at Chair and Clinic of General, Transplantation and Liver Surgery, Medical University of Warsaw.Material and methods. Data from 1000 transplantations (944 patients) performed at Chair and Clinic of General, Transplantation and Liver Surgery between 1994 and 2011 were analyzed retrospectively. These included 943 first transplantations and 55 retransplantations and 2 re-retransplantations. Frequency of particular indications for first transplantation and retransplantations was established. Perioperative mortality was defined as death within 30 days after the transplantation. Kaplan-Meier survival analysis was used to estimate 5-year patient and graft survival.Results. The most common indications for first transplantation included: liver failure caused by hepatitis C infection (27.8%) and hepatitis B infection (18%) and alcoholic liver disease (17.7%). Early (< 6 months) and late (> 6 months) retransplantations were dominated by hepatic artery thrombosis (54.3%) and recurrence of the underlying disease (45%). Perioperative mortality rate was 8.9% for first transplantations and 34.5% for retransplantations. Five-year patient and graft survival rate was 74.3% and 71%, respectively, after first transplantations and 54.7% and 52.9%, respectively, after retransplantations.Conclusions. Development of liver transplantation program provided more than 1000 transplantations and excellent long-term results. Liver failure caused by hepatitis C and B infections remains the most common cause of liver transplantation and structure of other indications is consistent with European data.
    Źródło:
    Polish Journal of Surgery; 2012, 84, 6; 304-312
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies