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Search Results: 1 - 10 of 88907 matches for " Marian W. Roman "
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Pilot study provides qualitative evidence for intrinsic motivation in schizophrenia spectrum disorders  [PDF]
Marian W. Roman, Lora Humphrey Beebe, Renee Burk
Open Journal of Psychiatry (OJPsych) , 2012, DOI: 10.4236/ojpsych.2012.224045
Abstract: Persons with schizophrenia spectrum disorders (SSDs) face multiple health barriers that are improved with exercise, but they seldom exercise due to a variety of barriers, of which amotivation is primary. In the current study, we investigated the subjective experiences of persons with SSDs following a formal exercise program. Twenty seven persons with SSDs who had taken part in a 16-week walking program provided feedback during exit interviews. Our purpose was to ascertain whether comments provided evidence of development of intrinsic motivation as defined by Ryan and Deci’s self determination of behavior theory. Our directed content analysis resulted in 5 thematic codes: autonomy, competence, relatedness, health benefits and personal enjoyment. Results highlight the importance of health-related group activities in supporting competence, relatedness and autonomy. Development and testing of interventions to support intrinsic motivation is critical to improving the health of this vulnerable group.
Human Neural Stem Cell Replacement Therapy for Amyotrophic Lateral Sclerosis by Spinal Transplantation
Michael P. Hefferan, Jan Galik, Osamu Kakinohana, Gabriela Sekerkova, Camila Santucci, Silvia Marsala, Roman Navarro, Marian Hruska-Plochan, Karl Johe, Eva Feldman, Don W. Cleveland, Martin Marsala
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0042614
Abstract: Background Mutation in the ubiquitously expressed cytoplasmic superoxide dismutase (SOD1) causes an inherited form of Amyotrophic Lateral Sclerosis (ALS). Mutant synthesis in motor neurons drives disease onset and early disease progression. Previous experimental studies have shown that spinal grafting of human fetal spinal neural stem cells (hNSCs) into the lumbar spinal cord of SOD1G93A rats leads to a moderate therapeutical effect as evidenced by local α-motoneuron sparing and extension of lifespan. The aim of the present study was to analyze the degree of therapeutical effect of hNSCs once grafted into the lumbar spinal ventral horn in presymptomatic immunosuppressed SOD1G93A rats and to assess the presence and functional integrity of the descending motor system in symptomatic SOD1G93A animals. Methods/Principal Findings Presymptomatic SOD1G93A rats (60–65 days old) received spinal lumbar injections of hNSCs. After cell grafting, disease onset, disease progression and lifespan were analyzed. In separate symptomatic SOD1G93A rats, the presence and functional conductivity of descending motor tracts (corticospinal and rubrospinal) was analyzed by spinal surface recording electrodes after electrical stimulation of the motor cortex. Silver impregnation of lumbar spinal cord sections and descending motor axon counting in plastic spinal cord sections were used to validate morphologically the integrity of descending motor tracts. Grafting of hNSCs into the lumbar spinal cord of SOD1G93A rats protected α-motoneurons in the vicinity of grafted cells, provided transient functional improvement, but offered no protection to α-motoneuron pools distant from grafted lumbar segments. Analysis of motor-evoked potentials recorded from the thoracic spinal cord of symptomatic SOD1G93A rats showed a near complete loss of descending motor tract conduction, corresponding to a significant (50–65%) loss of large caliber descending motor axons. Conclusions/Significance These data demonstrate that in order to achieve a more clinically-adequate treatment, cell-replacement/gene therapy strategies will likely require both spinal and supraspinal targets.
Apophyllite from the Mi dzyrzecze sillnear Bielsko-Bia a, the type of area of the teschenite-picrite association
Roman W?odyka,Roman Wrzalik
Mineralogia Polonica , 2004,
Abstract: Fluorapophyllite crystals from complex veins crosscutting a small pectolite skarn bodyat the top of the Miêdzyrzecze sill were studied by means of chemical analysis, X-ray diffraction, thermalanalysis and both infrared and Raman spectroscopy. The apophyllite from Miêdzyrzecze, lacking abnormaloptical properties, is tetragonal with lattice parameters: a = 8.974(2) , c = 15.798(6) . DTA curves exhibittwo endothermic peaks centred at about 330 and 430C. The dehydration behaviour of apophyllite resultsfrom the development on the outer parts of grains of an amorphous layer. It forms a diffusion barrier thatmoderates H2O migration and originates in the second endothermic peak. IR investigations showed a newstretching vibration (OH), not previously recognized in apophyllite. This new band at 3627 cm–1 can beattributed to (OH) of the hydroxyl group which substitutes for F– in the apophyllite structure. Selectiveleaching of phlogopite probably released the elements necessary for apophyllite precipitation in open spacesof the fissures in the upper part of the picrite sill.
Modelovanie dopadov prirodzenej a umelej obnovy na genetickú truktúru: 1. nezmie any smrekovy porast
Marian Pacalaj, Du an G m ry, Roman Longauer
Lesnícky casopis - Forestry Journal , 2011, DOI: 10.2478/v10114-011-0004-0
Abstract: The paper focuses on the analysis and assessment of spatial and temporal variation in male and female fertility and their effect on the genetic structure of progeny in a managed stand of a pure Norway spruce. The program package Eco-Gene (Degen & Gregorius & Scholz 1996) was used to model genetic structures and to assess the influence of various regeneration systems based on natural and artificial regeneration on the formation of spatial genetic structure, allelic richness, diversity and genotype structure of progeny, and its differentiation from the maternal stand. The research plot was established in the site Vy né Hágy with 200 adult trees. For each tree, position in the stand, crown size and its ground projection, and seed fertility were scored in the field. Besides, a multilocus genotype of each tree was determined by isozyme analyses of dormant buds. Based on the modelling, we compared various silvicultural systems, which should result in a progeny reproducing genetic structures of maternal stands. An important indicator for the evaluation of silvicultural treatments was the formation of spatial genetic structures, as a secondary criterion, we used the differentiation of progeny against mother stand. Finally, we also considered genetic variation of progenies. Considering these criteria, the most appropriate silvicultural treatment in pure spruce stands appears to be the two-phase edge shelterwood cutting. On the other hand, intensive single tree selection is maybe unexpectedly the least appropriate option. The other tested systems - single-phase edge, group, progressive group shelterwood cutting and moderate single tree selection have an equivalent, intermediate position.
Zaburzenia przep ywu w yle podobojczykowej powodowane rozrusznikiem serca
Roman Steckiewicz,Marcin Grabowski,Przemys?aw Stolarz,Marian Pieniak
Polish Journal of Cardiology , 2006,
Abstract: Powik ania po zabiegach wszczepienia uk adu stymuluj cego serce mog by zwi zane z sam procedur implantacji lub z niewydolno ci uk adu stymuluj cego. Zwykle s one agodne w objawach, a ich cz sto zale y g ównie od do wiadczenia operatora. Zakrzepica y y podobojczykowej wyst puje rzadko i jest zwykle klinicznie nieistotna. Artyku przedstawia przypadek 28-letniego pacjenta po implantacji dwujamowego uk adu stymuluj cego serca, który po zabiegu zg asza uczucie mrowienia prawej r ki, jej zaczerwienienie i obrz k. Flebografia wykaza a zaleganie kontrastu spowodowane uciskiem stymulatora na pocz tkowy odcinek y y podobojczykowej, bez cech zakrzepicy. Po zmianie po o enia stymulatora obserwowano ust pienie objawów. Autorzy doniesienia nie znale li w pi miennictwie podobnego opisywanego wcze niej przypadku, aczkolwiek cz sto wyst powania podobnych przypadków mo e by wi ksza, gdy agodne objawy mog sprawia , e s bagatelizowane zarówno przez pacjentów, jak i lekarzy. Nierozwi zanym problemem pozostaje sposób zapobiegania podobnym powik aniom. Wydaje si , e najistotniejsze znaczenie ma badanie w trakcie wizyt kontrolnych stymulatora, prostych do stwierdzenia objawów zakrzepicy.
Relationship between Seed Germination Capacity of 10 Species of Vegetables and their Emergence in the Field
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 2008,
Abstract: In the years 2001-2003, research was carried out to determine to what extent seed germination capacity of selected vegetable species indicates their field emergence potential. The experiment included 10 species: white head cabbage, garden carrot, red beet, onion, cucumber, tomato, radish, head lettuce, snap dwarf bean and garden pea. The seeds came from 4 commercial seed companies operating on the Polish market. The seeds of red beet and radish from different seed companies had different germination capacities, field emergence and ratio of emergence to germination capacity, but the other species did not differ. The highest ratios of emergences to germination capacity were found for radish (82.3%) and white head cabbage (81.2%), whereas the lowest were for carrot (44.6%) and head lettuce (45.1%). The species differed by the stability of the ratio in various years of the experiment, i.e. they responded differently in the given year to the weather conditions. The biggest variation over the years were found for onion (5.3-87.7%; or 16.5x), garden carrot (21.6-99.0%; or 4.6x) and head lettuce (19.9-67.3%; or 3.4x), whereas the smallest were for radish (67.1-95.8%; or 1.4 x) and white head cabbage (65.2-97.2%; or 1.5x).
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 2006,
Abstract: In the years 2001-2003 the seed quality of 108 samples of white head cabbage, garden carrot, red beet, onion, cucumber, tomato, radish, lettuce, common bean and garden pea were checked. They came from 3 Polish seed companies and 1 foreign one operating on the Polish market. It was found out that 22.2% of the examined seed samples did not meet the standards concerning germination capacity. The worst were seeds of lettuce and head cabbage. Their samples did not meet the germination capacity standards in 55.5% and 41.7%, respectively. The best quality was found for seeds of red beet and cucumbers - all their tested samples met the germination capacity standards. The highest number of samples, which did not meet the standards, came from the company number 2, the smallest - from the company number 4. All tested seed samples met the purity standards.
Evaluating a Student MIS in the Tertiary Education Sector: Addressing Functional-Operational Misalignment through Continuous Participative Evaluation  [PDF]
Marian Carcary
Journal of Service Science and Management (JSSM) , 2010, DOI: 10.4236/jssm.2010.31004
Abstract: The Information and Communications Technology (ICT) evaluation literature spans several decades. ICT evaluation approaches range from objective and positivistic to subjective and interpretive. While positivistic approaches have dominated the past, there is increasing recognition of the value of interpretivist methods and the need for ongoing project evaluation. Formative continuous participative evaluation (CPE) offers several benefits in terms of project control, enhanced stakeholder relationships and benefit realisation; nonetheless this is often ignored in practice. There is a paucity of ICT evaluation within the Higher Education sector. The 14 Irish Institutes of Technology (IoTs) recently underwent an extensive transformation of their ICT systems, through a nationwide implementation of a suite of integrated IS. This research study, centred on the evaluation of the Student MIS implementation was interpretive in nature; case studies were conducted in five IoTs. This paper focuses specifically on one issue uncovered through the research i.e. the misalignment between the Student MIS and the IoTs requirements. The paper proposes a set of guidelines for addressing this issue through focusing on the theoretical underpinnings of CPE and its importance for organisational learning and benefit realisation.
Cancer Status: Mocb and tPSA Prostate Cancer Markers  [PDF]
Marian Surma
Journal of Cancer Therapy (JCT) , 2012, DOI: 10.4236/jct.2012.36144
Abstract: On the basis of the results of magneto-optical studies and their comparison with the outcome of medical tests magneto-optical MOCB and tPSA serum markers of cancer/recovered patient are presented. Status of the cancer serum donor is recognized as presence of the laevorotatory optical active molecules of (-)p density in serum while status of the recovered donor is recognized as quantitative domination of the dextrorotatory (+)p molecules in serum. These molecular information carriers (-)p and (+)p are recorded by the magneto-optical circular birefringence MOCB effect in B2 magnetic field. The laevo/dextrorotatory carriers are enantiomers in the case of (-)p = (+)p relations fulfilled for any individual cancer and the same recovered patient. The positive predictive value PPV of MOCB results is 100%.
Enantiomers Present in Serum Carry Cancer and/or Recovery Status Information  [PDF]
Marian Surma
Journal of Cancer Therapy (JCT) , 2014, DOI: 10.4236/jct.2014.56071

Human blood serum of cancer, cancer-recovered and healthy patients contains laevorotatory and dextrorotatory B2 active molecules. The laevorotatory B2 active carriers in patient serum carry information on the cancer status while the dextrorotatory B2 active carriers carry information on the recovered and/or healthy patient status. Their magneto-optical characteristic is analysed by the B2 Magneto Optical Circular Birefringence. By applying the MOCB experimental technique, it is possible to differentiate between the cancer and non-cancer patients. The paper introduces a purely molecular physics approach for description of the cancer/recovered and also non-cancer patients status.

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