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Search Results: 1 - 10 of 462707 matches for " Gaba?ová A "
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The hornblende-plagioclase hornfels from the contact aureole of the Tanvald granite, northern Bohemia - the raw material for Neolithic tools
Klomínsky J,Fediuk F,Schovánek P,Gabaová A
Bulletin of Geosciences , 2004, DOI: 10.3140/bull.geosci.2004.01.063
Abstract: A hornblende-plagioclase hornfels is described from a new exposure near the village of Je manice, where it is present as a 30-35 cm thick layer within spotted phyllites at the exocontact of the Krkono e-Jizera granite massif in northern Bohemia. The hornfels layer seems to be part of the Poniklá Group of Ordovician -Upper Silurian age. It corresponds to the metabasites used in the production of Neolithic artifacts (e.g., the Jistebsko archeological site near Jablobec nad Nisou), which were hitherto known only as loose fragments from localities on the lower slopes to the south of the granite ridge between Liberec and Tanvald. New data show that this rock is situated inside the contact aureole of the Tanvald alkali-feldspar granite, its remarkable mechanical strength being due to the effects of contact metamorphism. The hornfels corresponds compositionally to tholeiitic basalt. Its major minerals are amphiboles ranging in composition from the predominate magnesiohornblende to subordinate actinolite, calcic plagioclase, and ilmenite. This rock represents neither a dike nor a lava sheet, but rather a sill or a tuff layer modified by regional and thermal metamorphic reconstruction and tectonic deformation.
Recent Studies on Nutrition and Parkinson’s Disease Prevention: A Systematic Review  [PDF]
Ann Gaba
Open Journal of Preventive Medicine (OJPM) , 2015, DOI: 10.4236/ojpm.2015.55023
Abstract: Introduction: Parkinson’s disease (PD) is a chronic progressive movement disorder, affecting primarily people over sixty years of age. With aging populations, some estimates indicate as many as nine million people will be impacted by this disease by 2030. Thus it is imperative to identify means of prevention, delay of onset, and management of symptoms. Many elements of diet and nutrition have been investigated to accomplish these goals. This review will examine recent studies of potential diet and nutrition factors and PD incidence. Methods: A PubMed Search was conducted using the keywords “Parkinson, prevention and nutrition”, and “Parkinson, prevention, and diet.” Search parameters were limited to articles published in English, and published between 2005 and February 2015. Results: Nineteen studies were selected for closer evaluation, with twelve ultimately included in the analysis. Selected papers all included large samples (N > 200), comparisons of individuals with and without diagnosed PD and detailed descriptions of how nutritional intakes were assessed. Conclusions: Several specific dietary components emerged as being of potential importance in PD prevention. Dairy products, most specifically liquid whole milk, were identified as increasing PD risk. Coffee and black tea, but not green tea, seemed to be protective, most likely due to their caffeine content. Vegetables from the solenaceae?family, specifically peppers, had a protective effect, possibly due to their nicotine content. Mediterranean diet adherence, with a relatively high intake of vegetables, may also be protective. The role of dietary fats is not yet clear. Dietary cholesterol was found to be protective in men, but not women, with dietary mono-unsaturated fatty acids being protective in women but not men. These results are consistent with a preliminary report for the 2015 US Dietary Guidelines, which addresses diet and risk of neurodegenerative disorders for the first time.
Starbursts versus Truncated Star Formation in Nearby Clusters of Galaxies
James A. Rose,Alejandro E. Gaba,Nelson Caldwell,Brian Chaboyer
Physics , 2000, DOI: 10.1086/318754
Abstract: We present long-slit spectroscopy, B and R bandpass imaging, and 21 cm observations of a sample of early-type galaxies in nearby clusters which are known to be either in a star-forming phase or to have had star formation which recently terminated. From the long-slit spectra, obtained with the Blanco 4-m telescope, we find that emission lines in the star-forming cluster galaxies are significantly more centrally concentrated than in a sample of field galaxies. The broadband imaging reveals that two currently star-forming early-type galaxies in the Pegasus I cluster have blue nuclei, again indicating that recent star formation has been concentrated. In contrast, the two galaxies for which star formation has already ended show no central color gradient. The Pegasus I galaxy with the most evident signs of ongoing star formation (NGC7648), exhibits signatures of a tidal encounter. Neutral hydrogen observations of that galaxy with the Arecibo radiotelescope reveal the presence of ~4 x 10^8 solar masses of HI. Arecibo observations of other current or recent star-forming early-type galaxies in Pegasus I indicate smaller amounts of gas in one of them, and only upper limits in others.
Subtílne mizanscény stredoveku (Subtle Mise-en-scènes of the Middle Ages)
Anna A. Hlavá?ová
Ostium , 2011,
Abstract: In her paper Anna A. Hlavá ová compares the concept of a Noh play Matsukaze with a Slovak altar painting from the Ko ice cathedral aiming to reconstruct the European medieval stage practices reflected in 15th century painting with the help of Japanese Noh where the stage continuity has been preserved until the present day.
Ad Alta : Journal of Interdisciplinary Research , 2011,
Abstract: The article analyses the problems of the undergraduates′ stress situationperception. The author looks for the differences of stress perception of highly and lowcreative respondents, and according to the results, she claims the less creativerespondents perceive a lot more stress within their friendships (11,2 %) and theirfamily relations (11,2 %) than more creative students (4,1 % and 7,2 %). On thecontrary, more creative students feel more stress from health problems (15,5 %) thanless creative ones (8,2 %). The least stressful situations for highly creativeundergraduates are their friendships and anxiety states. The less creative respondentsfeel the least stress situations related to the anxiety states and unexpected situations.
Interface Phonons and Polaron Effect in Quantum Wires
Maslov A,Proshina OV
Nanoscale Research Letters , 2010,
Abstract: The theory of large radius polaron in the quantum wire is developed. The interaction of charge particles with interface optical phonons as well as with optical phonons localized in the quantum wire is taken into account. The interface phonon contribution is shown to be dominant for narrow quantum wires. The wave functions and polaron binding energy are found. It is determined that polaron binding energy depends on the electron mass inside the wire and on the polarization properties of the barrier material.
Digital technical map of Ko ice city
Eva ?ar?aňová,?ofia Kuzevi?ová,?tefan Kuzevi?
Acta Montanistica Slovaca , 2007,
Abstract: The digital map of a city is comprised complex of the map. Process of creation of the digital map of a city is time consuming and financially demanding. The digital map is created as co-operation of the local authority, technology network administrator, companies, and local government. The exact and current digital map of the city utilizable for multilateral applications is the result of this co-operation. The digital map of city catch all important phenomenon and objects which are needed for making decisions and planning to all grades controlling the local authority. The Geographic information systems tools make possible updating digital map, analyses and syntheses spatial phenomena and theirs relationships. The digital map of city is created step by step. The digital technical map of city is one of very important part of the digital map. Illustration of the part digital technical map of Ko ice is showed in the Fig. 1.
Putting Like a Pro: The Role of Positive Contagion in Golf Performance and Perception
Charles Lee, Sally A. Linkenauger, Jonathan Z. Bakdash, Jennifer A. Joy-Gaba, Dennis R. Profitt
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0026016
Abstract: Many amateur athletes believe that using a professional athlete's equipment can improve their performance. Such equipment can be said to be affected with positive contagion, which refers to the belief of transference of beneficial properties between animate persons/objects to previously neutral objects. In this experiment, positive contagion was induced by telling participants in one group that a putter previously belonged to a professional golfer. The effect of positive contagion was examined for perception and performance in a golf putting task. Individuals who believed they were using the professional golfer's putter perceived the size of the golf hole to be larger than golfers without such a belief and also had better performance, sinking more putts. These results provide empirical support for anecdotes, which allege that using objects with positive contagion can improve performance, and further suggest perception can be modulated by positive contagion.
Acute Arterial Thrombosis after Covered Stent Exclusion of Bleeding Mycotic Pseudoaneurysm: Treatment Using Catheter-Directed Thrombolysis
Sarah Palestrant,M. Grace Knuttinen,Ron C. Gaba,James T. Bui,Charles A. Owens
International Journal of Vascular Medicine , 2011, DOI: 10.1155/2011/264053
Abstract: Conventional absolute contraindications to catheter-directed thrombolysis include active or recent hemorrhage and the presence of local vascular infection, both of which increase the risk of procedure-related complications such as bleeding and systemic sepsis. For this reason, lytic therapy of arterial thromboembolism under these circumstances is generally precluded. Herein, we describe a unique case of safe catheter-directed lysis of an acutely thrombosed iliac artery following covered stent placement for treatment of an actively bleeding infected pseudoaneurysm. Our management approach is discussed. 1. Introduction Catheter-directed thrombolytic agent infusion represents an effective and well-established method of restoring blood flow in acute and subacute thromboembolic arterial occlusion [1]. This therapy is associated with a 61.9–85.7% efficacy rate and a low major hemorrhagic complication rate of approximately 5.1% [1–3]. Traditional contraindications to catheter-based lytic therapy include active or recent hemorrhage, which increases risk for procedure-related bleeding complications, and infection at the site of thrombosis, which may result in systemic sepsis [4–6]. To date, there is limited data on the safety of catheter-based thrombolysis in the presence of these conditions. Herein, we describe a unique case of safe catheter-directed thrombolysis of an acutely thrombosed iliac artery pursued immediately after covered stent insertion was performed for treatment of an actively bleeding infected pseuodoaneurysm. A discussion of our management approach and a review of the relevant literature are presented. 2. Case Report Institutional review board approval is not required for single retrospective case studies at our hospital. A 46-year-old woman was referred to interventional radiology (IR) for image-guided drainage of a large pelvic abscess discovered after she presented to the emergency department (ED) with fever and leukocytosis. The patient had a history of stage IV rectal cancer (cloacogenic type) for which she underwent palliative laparoscopic diverting sigmoid colostomy 26 months prior. In separate procedures, she also underwent subsequent pelvic exenteration, abdominoperineal resection, en bloc vaginectomy, bilateral salpingo-oophorectomy, right groin lymphadenectomy, and perineal reconstruction with a rectus abdominis myocutaneous flap, as well as receiving a high external beam radiation dose to the pelvis (45?Gy) and systemic chemotherapy with 5-fluorouracil and oxaliplatin. Computed tomography (CT) scan obtained in the ED demonstrated a
Radial Color Gradients in K+A Galaxies in Distant Clusters of Galaxies
Lindsay J. Bartholomew,James A. Rose,Alejandro E. Gaba,Nelson Caldwell
Physics , 2001, DOI: 10.1086/324229
Abstract: Galaxies in rich clusters with z $\gtrsim$ 0.3 are observed to have a higher fraction of photometrically blue galaxies than their nearby counterparts. This raises the important question of what environmental effects can cause the termination of star formation between z $\approx$ 0.3 and the present. The star formation may be truncated due to ram-pressure stripping, or the gas in the disk may be depleted by an episode of star formation caused by some external perturbation. To help resolve this issue, surface photometry was carried out for a total of 70 early-type galaxies in the cluster Cl1358+62, at z $\sim$ 0.33, using two-color images from the Hubble Archive. The galaxies were divided into two categories based on spectroscopic criteria: 24 are type K+A (e.g., strong Balmer lines, with no visible emission lines), while the remaining 46 are in the control sample with normal spectra. Radial color profiles were produced to see if the K+A galaxies show bluer nuclei in relation to their surrounding disks. Specifically, a linear gradient was fit to the radial color profile of each galaxy. We find that the K+A galaxies on average tend to have slightly bluer gradients towards the center than the normals. A Kolmogorov-Smirnov two-sample test has been applied to the two sets of color gradients. The result of the test indicates that there is only a $\sim$2% probability that the K+A and normal samples are drawn from the same parent distribution. There is a possible complication from a trend in the apparent magnitude vs. color gradient relation, but overall our results favor the centralized star formation scenario as an important process in the evolution of galaxies in dense clusters.
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