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14671. Mimořádné ocenění našich mladých fyziků Prémií Otty Wichterleho

Creator:
Kodymová, Jarmila
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
Dušek, Michal, Hlinka, Jiří, Hospodková, Alice, Juha, Libor, Jungwirth, Tomáš, Mihóková, Eva, Novák, Vít, Rus, Bedřich, Shick, Alexander B., Knížek, Karel, Kužel, Petr, Straka, Petr, fyzika, fyzici, ceny a vyznamenání, physics, physicists, awards, 6, and 53
Language:
Czech
Description:
Jarmila Kodymová. and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

14673. Mindfulness and subjective happiness: the mediating role of coping competence

Creator:
Akin, Ümran and Akin, Ahmet
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Psychologie, psychologie, psychology, všímavost, kompetence zvládání, subjektivní spokojenost, mindfulness, coping competence, subjective happiness, 17, and 159.9
Language:
Czech
Description:
The goal of this research is to examine the mediator role of coping competence on the relationship between mindfulness and subjective happiness. Participants were 292 undergraduates who completed a questionnaire package that inicluded the Cognitive and Affective Mindfulness Scale, the Coping Competence Questionnaire, and the Subjective happiness Scale. Findings demonstrated that both coping competence and subjective happiness were predicted positively by mindfulness. Subjective happiness was predicted positively by coping competence. Also coping competence mediated on the relationship between mindfulness and subjective happiness. Together, the findings illuminate the importance of mindfulness on psychological and cognitive adjustment. The results were discussed in the light of the related literature and dependent recommendations to the area were given., Ümran Akin, Ahmet Akin., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

14674. Mineral composition of the deep sea sediments in three sectors of Western Pacific Ocean

Creator:
Karel Melka, František Fediuk, and Langrová, Anna
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, sedimenty, sediments, Korálové moře, Tichý oceán (západní oblast), West Pacific Ocean, Philippine Sea, Solomon Sea, Coral Sea, electron microprobe analysis, X-ray quantitative diffraction analysis, adiabatic principle, secondary electron images, 7, and 551
Language:
English
Description:
During the International expedition of the research vessel Dmitry Mendeleyev three sectors of the Western Pacific Ocean were studied: Philippine Sea, Solomon Sea and Coral Sea. From these areas also the samples for the orientation were taken in order to do the mineralogical examination with them. Above all, X-ray diffraction technique was used beside the chemical analysis performed by electron microprobe analyzer. Quantitative evaluation of min eral components was carried out applying X-ray diffraction. Standardless technique based on the adiabatic principle enabled th e quantitative determination directly from the X-ray diffraction diagram. Generally, sheet silicates - above all smectite, chlorite, mica (illite) - play the leading role in the mineral composition of collected samples of muds taken from the ocean floor. Besi des, also minerals of terrigenous origin are present: quartz prevailing mostly over feldspars (plagioclase > K-feldspar). Amphiboles and pyroxenes occured, but not everywhere. Carbonate minerals (calcite >> aragonite) were found only in samples from Coral Sea., Karel Melka, Ferry Fediuk and Anna Langrová., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

14675. Mineralogical and textural influence on physico-mechanical properties of selected granitoids from Besham syntaxis, Northern Pakistan

Creator:
Ahmad, Tanveer, Rizwan, Muhammad, Hussain, Zeeshan, Ullah, Subhan, Ali, Zulfiqar, Khan, Adnan, Ghaffari, Abuzar, Nazir, Jabir, Kaleem, Faisal, Rahman, Noor, Ali, Iftikhar, Khan, Abdus Saboor, and Khan, Hamid A.
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
petrologie, petrography, Besham granitoids, physico-mechanical properties, 7, and 551
Language:
English
Description:
The Dubair-Shang granitoids are the major intrusive bodies in Besham group and are exposed along the Karakoram Highway in Besham and lower Kohistan districts. A variety of these granitoid rocks have been investigated in terms of their petrographic features and physico-mechanical properties. The studied rocks are classified into four different textural varieties including Dubair mylonitized (DM), Dubair coarse grained (DCG), Shang coarse grained (SCG) and Shang foliated (SF) granitoids based on field observations and petrographic features. Petrographically quartz, potash feldspar, plagioclase and biotite are the essential minerals present in all varieties in varying amount. Beside these hornblende, chlorite, epidote, ore mineral(s) and sphene are also present in the accessory amount. As a part of the present investigation some of the mechanical and physical properties including uniaxial compressive strength (UCS), uniaxial tensile strength (UTS), specific gravity, water absorption, total porosity, and Los Angeles abrasion were also determined. The combined approach of petrographic features with the physico-mechanical investigation revealed that the textural characteristics and mineralogy have a significant influence on the physico-mechanical properties of the studied rocks. It is determined that modal percentage of minerals, degree of alteration, recrystallization, grain size and shape, types of grain boundary contacts have significant effect on characteristics of these granitoids. Based on strength tests studied rocks fall in category of moderately strong to strong. The values of specific gravity, porosity, water absorption and Los Angeles are within the range permissible for their use as constructional materials except SF. Based on physico-mechanical properties and petrographic examination Dubair-Shang granitoids could be used as aggregate for the construction of road, railway tracks, embankment, adn canals., Tanveer Ahmad, Muhammad Rizwan, Zeeshan Hussain, Subhan Ullah, Zulfiqar Ali, Adnan Khan, Abuzar Ghaffari, Jabir Nazir, Faisal Kaleem, Noor Rahman, Iftikhar Ali, Abdus Saboor Khan and Hamid A. Khan., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

14676. Mineralogy of the clay gouge on Prague fault

Creator:
Hájek, Pavel and Martin Šťastný
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, jílové minerály, ordovik, clay minerals, Ordovician, Prague fault, clay mineralogy, X-ray diffraction, clay gouge, quartzite, cataclasis, 7, and 551
Language:
English
Description:
The research has dealt with mineral composition of the dislocation clays developed on the Prague fault. The Prague fault is a tectonic boundary between underlying clayey slates of Záhořany series and Skalka quartzite. The fault zone is filled with clay or sandy-silt to silty-sand matrix with scattered fragments of the surrounding rocks either slates or quart zite. Quartz, illite, kaolinite, chlorite, sporadic feldspar and gypsum were identified in powdered preparations by X-ray diffraction. The clay fraction of the taken samples is composed of illite, less kaolinite and sporadic chlorite and gypsum., Pavel Hájek and Martin Šťastný., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

14677. Miniature excitatory synaptic ion currents in the earthworm Lumbricus terrestris body wall muscles

Creator:
Volkov, E. M., Nurullin, L. F., Nikolsky, E., and Vyskočil, F.
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biochemie. Molekulární biologie. Biofyzika, biochemie, acetylcholin, ionty, svalové buňky, žížaly, biochemistry, acetylcholine, ions, muscle cells, earthworms, 2, and 577
Language:
English
Description:
The miniature excitatory postsynaptic currents (MEPCs) of the muscle cells of the earthworm Lumbricus terrestris were recorded by glass microelectrodes. In a single synaptic zone, three types of MEPC were recorded: a fast single-exponential type that decayed with τ=0.9 ms, a slow single-exponential with τ=9.2 ms and a two-exponential MEPC with τ = 1.3 and 8.5 ms, respectively. The muscle cells of earthworms contain populations of yet-unidentified ionic channels that might be different from the common nicotinic and muscarinic groups of acetylcholine receptors, since these MEPCs are not sensitive to d-tubocurarine, atropine, benzohexonium or proserine. Alternatively, besides ACh receptors, the membrane may contain receptors for an other yet-unidentified excitatory transmitter., E. M. Volkov, L. F. Nurullin, E. Nikolsky, F. Vyskočil., and Obsahuje bibliografii a bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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