Search results for: Michal Jeleň

Items from 1 to 15 out of 15 results

article

Organization of the 43rd European Congress of Cytology in the SARS–CoV‐2 pandemic period: A report

Jerzy Klijanienko, Béatrix Cochand‐Priollet, Wiktoria Król‐Cieciorowska, Michał Jeleń, more

Cancer Cytopathology > 130 > 7 > 488 - 490

The 43rd European Congress of Cytology in Wrocław, Poland, was held as a hybrid meeting in the Fall of 2021. After nearly 2 years without in‐person cytology conferences, the 43rd Congress represents 1 of the first major international scientific meetings to occur during the severe acute respiratory syndrome‐coronavirus 2 pandemic. Since March 2020, the pandemic situation substantially modified the...

article

A Closer Look at Frederic Chopin's Cause of Death

Michał Witt, Artur Szklener, Jerzy Kawecki, Witold Rużyłło, more

The American Journal of Medicine > 2018 > 131 > 2 > 211-212

article

The effect of 3 months aerobic and resistance training on step initiation speed and foot tapping frequency in the overweight and obese

Erika Zemková, Oľga Kyselovičová, Michal Jeleň, Zuzana Kováčiková, more

Sport Sciences for Health > 2017 > 13 > 2 > 331-339

Purpose This study evaluates the effect of 3 month resistance and aerobic training programs on step initiation speed and foot tapping frequency in the overweight and obese. Methods Twenty-five overweight and obese subjects were divided into two groups and participated in either resistance or aerobic training for a period of 3 months (3 sessions per week). Prior to and following the training, they...

article

Influence of feature set reduction on breast cancer malignancy classification of fine needle aspiration biopsies

Łukasz Jeleń, Adam Krzyżak, Thomas Fevens, Michał Jeleń

Computers in Biology and Medicine > 2016 > 79 > C > 80-91

Grading of breast cancer malignancy is a key step in its diagnosis, which in turn helps to determine its prognosis and a course of treatment. In this paper, we consider the application of pattern recognition and image processing techniques to perform computer-assisted automatic breast cancer malignancy grading from cytological slides of fine needle aspiration biopsies. To determine a classification...

chapter

Selection of 5 kW converter leg for power electronic system for residential buildings

Marcin Zygmanowski, Jaroslaw Michalak, Michal Jelen, Grzegorz Jarek, more

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe) > 1 - 10

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

Three converter leg variants are analyzed for low power converter used for power electronic system for residential buildings. The two-level Si-IGBT and SiC-MOSFET converters are compared with Si-IGBT three-level T-type converter. Power losses generated in each of these converters over a predicted period of 20 years of operation are contrasted with the cost of converter options. The detailed selection...

article

Somatostatin expression in the pancreatic cells of smoking and non-smoking chronic pancreatitis patients with or without diabetes

Mariola Śliwińska-Mossoń, Michał Jeleń, Halina Milnerowicz

Pancreatology > 2016 > 16 > 2 > 225-230

The aim of the analysis is to determine the location and degree of the hormone immunoreactivity in tissues of patients with chronic pancreatitis and diabetes.The study was performed on 11 non-smoking and 12 smoking patients with chronic pancreatitis (CP) with/without diabetes. The hormone was located in the pancreatic tissues by means of the immunohistochemical method using somatostatin antibodies...

article

Power production during bench press with different ranges of motion on stable and unstable surfaces

Erika Zemková, Michal Jeleň, Gábor Ollé, Tomáš Vilman, more

Human Movement > 2013 > 14 > 4 > 328-333

Purpose. The study compared power during concentric-only and countermovement (CM) bench press with different ranges of motion (ROM) on a stable and unstable surface. Methods. A group of 22 fit men performed three repetitions of 1) full ROM concentric-only bench press, 2) full ROM CM bench press, 3) half ROM concentric-only bench press, and 4) half ROM CM bench press, on a bench (stable) and Swiss...

article

Power production during bench press with different ranges of motion on stable and unstable surfaces

Erika Zemková, Michal Jeleň, Gábor Ollé, Tomáš Vilman, more

Human Movement > 2013 > 14 > 4 > 328-333

chapter

Direct Torque Control-based Forced Dynamics Control of induction motors

Grzegorz Jarek, Michal Jelen, Kazimierz Gierlotka

2011 IEEE International Symposium on Industrial Electronics > 568 - 572

2011 IEEE 20th International Symposium on Industrial Electronics (ISIE)

The paper concerns Forced Dynamics Control (FDC) of the squirrel-cage induction motor based on Direct Torque Control (DTC) method. Combination of these methods gives very good dynamic response and precise tracking of the reference speed. Principles of DTC and FDC methods are described, and simulations and laboratory tests results of the proposed combination are presented in the paper.

article

Bronchial hyper-responsiveness, subepithelial fibrosis, and transforming growth factor-β₁ expression in patients with long-standing and recently diagnosed asthma

Aneta Tomkowicz, Maria Kraus-Filarska, Julia Bar, Jerzy Rabczyński, more

Archivum Immunologiae et Therapiae Experimentalis > 2008 > 56 > 6 > 401-408

Introduction: Chronic inflammation in asthmatic airways leads to bronchial hyper-responsiveness (BHR) and the development of structural changes. Important features of remodeling include the formation of subepithelial fibrosis due to increased collagen deposition in the reticular basement membrane. Transforming growth factor (TGF)-β might be a central mediator of tissue fibrosis and remodeling. Materials...

article

Expression of collagenase-1 (MMP-1), collagenase-3 (MMP-13) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) in laryngeal squamous cell carcinomas

Tomasz Krecicki, Marcin Fraczek, Michal Jelen, Marzena Podhorska, more

European Archives of Oto-Rhino-Laryngology > 2003 > 260 > 9 > 494-497

Matrix metalloproteinases (MMPs) that have a proteolytic activity against the components of extracellular matrix (ECM) play an important role in the invasive and metastatic spread of tumors. The role of MMPs and tissue inhibitors of MMPs (TIMPs) in laryngeal squamous cell carcinoma (LSCC) has not been elucidated sufficiently. The aim of the present study was to evaluate the correlation between the...

article

Increased expression of vascular endothelial growth factor (VEGF) in bone marrow of patients with myeloproliferative disorders (MPD)

Tomasz Wróbel, Grzegorz Mazur, Pawe Surowiak, Dariusz Wolowiec, more

Pathology & Oncology Research > 2003 > 9 > 3 > 170-173

Angiogenesis is a multistep process of the development of capillaries from established blood vessels. Angiogenesis probably plays a significant role in the development and progression of hematopoietic malignancies. Higher microvascular density and increased serum levels of proangiogenic factors such as vascular endothelial growth factor (VEGF) or basic fibroblasts growth factor (bFGF) have been reported...

article

Quantitative evaluation of angiogenesis in laryngeal cancer by digital image measurement of the vessel density

Tomasz Krecicki, Danuta Dus, Joanna Kozlak, Wojciech Tarnawski, more

Auris Nasus Larynx > 2002 > 29 > 3 > 271 - 276

Objective: the aim of our study was determination of the relationship between angiogenesis and clinical as well as histological features in laryngeal cancer. Methods: we used two different methods of estimation of the amount of microvessels in the series of 55 cases, e.g. classical count of endothelial cells group (h-MVD) and digital image measurement of the vessel density (VD). Results: neither h-MVD...

article

Multiple Metastases of Carcinoma Basocellulare into Spinal Column

Katarzyna Jarus-Dziedzic, Wojciech Zub, Dariusz Dziedzic, Michal Jelen, more

Journal of Neuro-Oncology > 2000 > 48 > 1 > 57-62

Basal cell carcinoma presents a relatively low potential and local malignancy and very slow growth giving only occasionally metastatic spreading. The frequency of occurrence of metastatic dissemination is estimated in the literature depending on examined population from 0.028% to 0.55%. Metastases are most often found in lymph nodes, lungs bones and internal organs: liver, spleen, kidneys, adrenal...

article

Epidermal growth factor receptor (EGFR), proliferating cell nuclear antigen (PCNA) and Ki-67 antigen in laryngeal epithelial lesions

Tomasz Kręcicki, Michał Jeleń, Maria Zalesska-Kręcicka, Jerzy Rak, more

Oral Oncology > 1999 > 35 > 2 > 180-186

The epidermal growth factor receptor (EGFR), proliferating cell nuclear antigen (PCNA) and Ki-67 immunostaining in paraffin sections from 154 cases of laryngeal squamous cell carcinoma, 25 specimens of normal and hyperplastic laryngeal epithelium, and 21 preneoplastic lesions was examined. The difference of EGFR expression and PCNA score between laryngeal cancer and dysplastic lesions vs normal and...

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