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Search Results: 1 - 10 of 32 matches for " Styliani Fotiadou "
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Effect of Exercise on Gait Kinematics and Kinetics in Patients with Chronic Ischaemic Stroke  [PDF]
Styliani Fotiadou, Ioannis Kouroumichakis, Thomas Besios, Nikolaos Papanas, Erasmia Giannakou, Vassilios Gourgoulis, Nikolaos Aggeloussis
Open Journal of Therapy and Rehabilitation (OJTR) , 2019, DOI: 10.4236/ojtr.2019.74010
Abstract: Introduction :?In 2014, American Heart Association and American Stroke Association (AHA/ASA) issued exercise guidelines for stroke patients. Aim of the Study: To study the effects of an exercise programme based on AHA/ ASA guidelines, on gait kinematics and kinetics in patients with chronic ischemic stroke. Materials and Methods: Twelve stroke patients, 67.33 ± 9.14 years old, followed an 8-week exercise programme, with 3 hourly sessions per week, consisting of strength, endurance and flexibility training, as well as neuromuscular activities. Patients’ gait kinematics and kinetics were evaluated before and after the intervention using a 3-dimensional gait analysis system. Results: In most cases, patients in the intervention group showed significant increase or no change in gait kinematics, significant increase in joint moments at the anterior-posterior plane during support phase, and non-signi- ficant change in the frontal and transverse planes kinetics. Conclusions: Exercise prevented further deterioration and/or led to improved walking pattern.
Obesity: A chronic disease
Styliani Zerva,Magdalini Zerdila
To Vima tou Asklipiou , 2009,
Abstract: The last decades, obesity represents one of the most serious health issues with approximately 310 million people presently affected globaly and is frequently cited as a chronic disease. The term obesity refers to the excessive accumulation of fat, mainly under the skin but also on various organs of the body. Obesity’s most common cause is the intake of more calories than those required for one’s daily needs.The aim of the study was to review etiology of obesity, as well as the accountable risk factors.The method οf this study included bibliography research from both the review and the research literature which referred to the etiology, the risk factors of obesity and the beneficial role of physical exercise on weight management.Results: The majority of research studies showed that a growing number of adults, children and adolescents around the world, is facing the danger of becoming obese. In literature is cited that both genetic and environmental factors are accountable for the development of obesity. It is well established that the main therapeutic approaches to loose weight are life-style modifications and the combination of a well-balanced hypocaloric diet with regular physical exercise.Conclusions: The problem of obesity and overweight has become an epidemic in most developed countries. The rapid increase in the numbers of obese people reflects environmental changes, the reduced activity and also the increased food intake.
Dynamics of Proton Transfer in Mesoscopic Clusters
Styliani Consta,Raymond Kapral
Physics , 1996, DOI: 10.1063/1.471153
Abstract: Proton transfer rates and mechanisms are studied in mesoscopic, liquid-state, molecular clusters. The proton transfer occurs in a proton-ion complex solvated by polar molecules comprising the cluster environment. The rates and mechanisms of the reaction are studied using both adiabatic and non-adiabatic molecular dynamics. For large molecular clusters, the proton-ion complex resides primarily on the surface of the cluster or one layer of solvent molecules inside the surface. The proton transfer occurs as the complex undergoes orientational fluctuations on the cluster surface or penetrates one solvent layer into the cluster leading to solvent configurations that favor the transfer. For smaller clusters the complex resides mostly on the surface of the cluster and proton transfer is observed only when the complex penetrates the cluster and solvent configurations that favor the proton transfer are achieved. Quantitative information on the cluster reaction rate constants is also presented.
The 2010 early outburst spectrum of the recurrent nova U Scorpii
Styliani Kafka,Robert Williams
Physics , 2010, DOI: 10.1051/0004-6361/201015415
Abstract: Aims. We present optical spectra of the fast recurrent nova U Sco during its recent outburst, obtained within 24 hr of maximum light. Methods. We use medium resolution (R~4000) spectra taken with the with the MagE spectrograph on the Magellan (Clay) 6.5m telescope of the Las Campanas Observatories. Results. The spectrum is notable for its lack of a low ionization transient heavy element absorption system that is visible in the large majority of novae near maximum light. We suggest that this may be due to the dominance of inner Lagrangian L1 mass transfer and the absence of a circumbinary gas reservoir in this object
Differential Early Fluctuations in Superoxide Dismutase and Catalase Activities Are Included in the Responses of Young Maize Organs to S-Deprivation  [PDF]
Styliani N. Chorianopoulou, Maria Giamouroglou, Dimitris L. Bouranis
American Journal of Plant Sciences (AJPS) , 2012, DOI: 10.4236/ajps.2012.33040
Abstract: water soluble protein fraction (WSPF) content along with the SOD and the CAT activities were comparatively monitored in leaf blades, sheaths and roots. S-deprivation progressively diminished WSPF first in the sheaths, two days later in the blades, and four days later in the root. SOD activity per mg WSPF decreased at d2, whilst it increased for the next four days. After d6, SOD activities of roots and sheaths decreased, followed by the blades at d10. CAT activity per mg WSPF at d2 decreased only in blades, whilst increased in both sheaths and roots (more in sheaths). After d6 decreased CAT activity was found only in roots. No other decreases were observed in blades and sheaths. SOD and CAT specific activities on DM basis presented an oscillation pattern with the increase of DM. S-deprivation altered this picture, by reversing the oscillation pattern and by decreasing the trendlines. SOD specific activity initially decreased in –S sheaths and roots, whilst it remained unchanged in –S blades. Then it increased abruptly, decreased in an exponential manner and stabilised in all three organs. S-deprivation caused an early fluctuation of the CAT activity and then diverse responses; in blades a late increase in CAT activity was observed and decreases in the other two organs. S-deprivation seemed to reverse the oscillation pattern of CAT specific activity differentially for each organ type.
Motivational Interviewing for Smoking Cessation and Increase of Physical Activity in Αdults  [PDF]
Despoina Leontari, Vasiliki Zisi, Stamatia Gratsani, Styliani Chroni, Yannis Theodorakis
Psychology (PSYCH) , 2017, DOI: 10.4236/psych.2017.812127
Abstract: This study investigated if and how an individual counselling program, based on motivational interviewing, affects lifestyle changes that contribute to smoking cessation and physical activity enhancement. The participants were 2 men and 6 women aged 25 - 54 years. The program consisted of 12 individual weekly counselling sessions based on motivational interviewing. There was a 9 month follow up (monthly sessions, weekly telephone calls). A semi-structured interview was used to evaluate the effectiveness of the program after the intervention. Qualitative content analysis was used, along with the In Vivo Software in organizing the data from the interview. At the end of the follow up, three participants stopped smoking, four participants turned to light smokers (<10 cigarettes per day) and only one person failed to change smoking behavior. The participants reported that the discussion and communication with the advisor were very helpful, such as the support, the commitment, the resistance and the goal setting techniques. The gains that the participants experienced were a general life-style change, smoking cessation or smoking reduction, motivation, sensitization, self-esteem, self-knowledge, safeness, stress reduction, relaxation and better physical condition. It seems that motivational interviewing greatly contributes to helping adults to quit or reduce smoking and adopt a healthier lifestyle.
Coping strategies by the Greek university students facing stress
Theodoratou Maria,Tafiadis Dionysios,Fotiadou Sofia
Annals of General Psychiatry , 2006, DOI: 10.1186/1744-859x-5-s1-s221
Abstract:
Comparison of the S-, N- or P-Deprivations’ Impacts on Stomatal Conductance, Transpiration and Photosynthetic Rate of Young Maize Leaves  [PDF]
Dimitris L. Bouranis, Styliani N. Chorianopoulou, Alexandros Dionias, Giouli Sofianou, Aristotelis Thanasoulas, Georgios Liakopoulos, Dimosthenis Nikolopoulos
American Journal of Plant Sciences (AJPS) , 2012, DOI: 10.4236/ajps.2012.38126
Abstract: Seven-day-old maize (Zea mays) plants were grown hydroponically for ten days in deprived nutrient solutions against the corresponding control grown under full nutrition; the effects of S-, N- or P-deprivation on laminas’ mean stomatal conductance (gs), transpiration rate (E) and photosynthetic rate (A) were monitored, along with the impact on the laminas’ total dry mass (DM), water amount (W), length and surface area (Sa). Furthermore, a time series analysis of each parameter’s response ratios (Rr), i.e. the treatment’s value divided by the corresponding control’s one, was performed. Under S-deprivation, the Rr of laminas’ mean gs, E, and A presented oscillations within a ±15% fluctuation zone, notably the “control” zone, whilst those of laminas’ total DM, water amount, surface area, and length included oscillation during the first days and deviation later on, presenting deviation during d10. Under the N-deprivation conditions all Rr time courses except the A one, included early deviations from the control zone without recovering. The deviation from the control zone appeared at d4. Under P-deprivation, all Rr time courses represented oscillations within the control zone. P-deprivation’s patterns resembled those of S-deprivation. Compared to the one of the S-deprivation, the P-one’s oscillations took place within a broader zone. Linear relationships among the various Rr patterns were found between gs-E, gs-A, E-A, DM-W and DM-Sa. In conclusion, the impact of P-deprivation appeared in an early stage and included an alleviation action, the one of N-deprivation appeared early with no alleviation action, whilst that of S-deprivation appeared later, being rather weaker when compared to the impact of the P-deprivation’s impact.
Developmental Changes in Hemodynamic Responses and Cardiovagal Modulation during Isometric Handgrip Exercise
Styliani Goulopoulou,Bo Fernhall,Jill A. Kanaley
International Journal of Pediatrics , 2010, DOI: 10.1155/2010/153780
Abstract: The purpose of this study was to examine differences in pressor response and cardiovagal modulation during isometric handgrip exercise (IHG) between children and adults. Beat-to-beat heart rate (HR) and blood pressure were measured in 23 prepubertal children and 23 adults at baseline and during IHG. Cardiovagal modulation was quantified by analysis of HR variability. Mean arterial pressure responses to IHG were greater in adults compared to children (<.05) whereas there were no group differences in HR responses (>.05). Children had a greater reduction in cardiovagal modulation in response to IHG compared to adults (<.05). Changes in mean arterial pressure during IHG were correlated with baseline cardiovagal modulation and force produced during isometric contraction (<.05). In conclusion, differences in pressor reflex response between children and adults cannot be solely explained by differences in autonomic modulation and appear to be associated with factors contributing to the force produced during isometric contraction.
Distribution Profiles and Interrelations of Stomatal Conductance, Transpiration Rate and Water Dynamics in Young Maize Laminas under Nitrogen Deprivation  [PDF]
Dimitris L. Bouranis, Alexandros Dionias, Styliani N. Chorianopoulou, Georgios Liakopoulos, Dimosthenis Nikolopoulos
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.55080
Abstract:

Seven-day-old maize (Zea mays) plants were grown hydroponically for ten days in N-deprived nutrient solution. The distribution profiles according to the position on the stem of the –N laminas stomatal conductance, transpiration rate, photosynthetic rate (1st-group) were monitored, along with the corresponding profiles of dry mass, water amount, water content, length, surface area, and specific surface area (2nd-group), relative to control. In the uppermost –N laminas, the changes within a parameter of the 1st-group were significantly higher and of the 2nd-group significantly lower than the control, respectively. Correlations of the corresponding values among the parameters of the 1st-or 2nd-group were linear. The parameters between groups correlated non-linearly. Transpiration rate was divided by the lamina’s dry mass correlated with surface area in a power-type function. The slopes of the response ratios linear relations between the various pairs of parameters could be used for simulation of a lamina’s response to the deprivation.

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