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10422. Welfare effects of labor migration
- Creator:
- Vikhrov, Dmytro, Univerzita Karlova. Centrum pro ekonomický výzkum a doktorské studium, and Národohospodářský ústav (Akademie věd ČR)
- Publisher:
- CERGE-EI
- Format:
- electronic and 33 s. : il.
- Type:
- model:monograph and TEXT
- Subject:
- Práce, pracovní migrace, migrační politika, modelování a simulace, labor migration, migration policy, modeling and simulation, 331.556, 314.15:323.1, 519.86/.87, (048.8), 4, and 331
- Language:
- English and Czech
- Description:
- Dmytro Vikhrov., Obsahuje bibliografii a bibliografické odkazy, České resumé, and born digital
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10423. Were stock during the financial crisis more jumpy: a comparative study
- Creator:
- Novotný, Jan, Kejak, Michal, Univerzita Karlova. Centrum pro ekonomický výzkum a doktorské studium, and Národohospodářský ústav (Akademie věd ČR)
- Publisher:
- CERGE-EI
- Format:
- electronic and 57 s.
- Type:
- model:monograph and TEXT
- Subject:
- Finance, finanční trhy, ceny, finanční krize, 336.76, 338.5, 336.7:338.124.4, (048.8), 4, and 336.7
- Language:
- English
- Description:
- Jan Novotný. and born digital
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10424. What drives conditional cooperation in public goods games?
- Creator:
- Katuščák, Peter and Miklánek, Tomáš
- Publisher:
- CERGE-EI
- Format:
- electronic, bez média, svazek, and 34 stran : ilustrace, tabulky.
- Type:
- model:monograph and TEXT
- Subject:
- Ekonomie, dobročinnost, fundraising, experimentální ekonomie, charity, fund raising, experimental economics, 177.72, 364-646.3, 33-028.77, (048.8), 4, and 33
- Language:
- English and Czech
- Description:
- Peter Katuščák, Tomáš Miklánek., Obsahuje bibliografii a bibliografické odkazy, and České a anglické resumé
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10425. What drives the gender gap?: an analysis using sexual orientation
- Creator:
- Montag, Josef, Univerzita Karlova. Centrum pro ekonomický výzkum a doktorské studium, and Národohospodářský ústav (Akademie věd ČR)
- Publisher:
- CERGE-EI
- Format:
- electronic and 39 s. : il., tab.
- Type:
- model:monograph and TEXT
- Subject:
- Práce, produktivita, dělba práce, gender, mzdy, diskriminace v zaměstnání, productivity, division of labor, wages, discrimination in employment, 005.61, 331.101.23, 316.66-055.1/.3, 331.2, 316.647.82:331.102, (048.8), 4, and 331
- Language:
- English and Czech
- Description:
- Josef Montag., Část. tištěno napříč, Obsahuje bibliografii a bibliografické odkazy, České resumé, and born digital
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10426. What Have ECHP and EU-SILC to Contribute to the Comparative Study of Housing?
- Creator:
- Dewilde, Caroline
- Type:
- article, model:article, and TEXT
- Subject:
- housing research, ECHP, and EU-SILC
- Language:
- English
- Description:
- This paper discusses the strengths and weaknesses of pan-European datasets, in particular ECHP and EU-SILC, for research in housing. Although ‘housing’ is a complex topic when studied from a European comparative perspective, I argue that there is no inherent reason why housing should be less amenable to cross-national research than other equally complex topics in comparative social science research, such as research into family change and stability, or the impact of educational systems on social stratification. Given appropriate theory, conceptualisation and contextualisation, along with strong methodologies, meaningful and informative research in housing with ECHP and EU-SILC are possible. There are however a number of limitations, which are mainly related to the fact that both datasets are geared towards the ‘production’ of a ‘system of social indicators’ informing European and national governments. Because of these limitations, ECHP and in particular EU-SILC are less attractive and less useful for academic research then they could potentially be.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10427. What is more important: nest-site concealment or aggressive behaviour? A case study ot the red-backed shrike, Lanius collurio
- Creator:
- Goławski, Artur and Mitrus, Cezary
- Type:
- article and TEXT
- Subject:
- breeding success, defence, predation, and red-backed shrike
- Language:
- English
- Description:
- The aim of this study was to check what decide about breeding success in red- backed shrike Lanius collurio: nest-site concealment or parent’s aggressive behaviour. The study was carried out in eastern Poland in 1999–2003, on study plot consisted of 855 ha of extensively agricultural landscape. The effect of nest site concealment and defence of brood by parents on breeding success was determined. In observations only natural nests were used. During the two of 10 days periods after commence of egg laying, no effect of index nest concealment and index of parents aggressiveness was observed. However, in first seven days of life of nestlings, was noticed that breeding success was depended on aggressiveness of parents, in relation to index nest concealment. The results showed behavior (aggression) as an important factor in breeding success of the red-backed shrike.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
10428. What is the role of neurotransmitter systems in cortical seizures?
- Creator:
- Pavel Mareš and Hana Kubová
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, neurofyziologie, epileptologie, farmakologie, neurophysiology, epileptology, pharmacology, cortical epileptic afterdischarges, GABA, glutamate, immature rats, 14, and 612
- Language:
- English
- Description:
- Epileptic afterdischarges (ADs) elicited by electrical stimulation of sensorimotor cortical area were used as a model to study the role of neurotransmitter systems in cortical seizures in three age groups of developing rats. Drugs augmenting inhibition mediated by GABAA receptors were found to suppress ADs in all age groups, their activity was usually more marked in younger than in 25-day-old rat pups. Drugs potentiating GABAB receptors exhibit lower efficacy and more complicated developmental profile than GABAA-ergic drugs. Effects of an antagonist of GABAB receptor – marked prolongation of ADs in all three age groups – suggest an important role of GABAB receptors in arrest of cortical seizures. Drugs affecting glutamate receptors exhibit variable effects, usually better expressed in older animals than in 12-day-old ones. No specific role for ionotropic as well as metabotropic glutamate receptors could be predicted. Activation of adenosinergic inhibitory modulatory system also exhibited anticonvulsant action in the present model. All three neurotransmitter systems probably participate in mechanisms of generation, maintenance and arrest of cortical seizures., P. Mareš, H. Kubová., and Obsahuje bibliografii a bibliografické odkazy
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10429. What is the source of free radicals causing hemolysis in stored blood?
- Creator:
- Jaroslav Racek, Růžena Herynková, Václav Holeček, Faltysová, J., and Krejčová, I.
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, volné radikály, leukocyty, hemolýza, free radicals, leucocytes, hemolysis, 14, and 612
- Language:
- English
- Description:
- The quality of stored blood can be deteriorated by hemolysis caused by free radicals. The purpose of this study was to elucidate whether neutrophile leukocytes are the source of free radicals in stored blood as in hemodialyzed patients. Resuspensions with low (LL) or high (HL) leukocyte concentrations were prepared from samples of twenty healthy volunteers. The samples were incubated for 10 days at 4 °C and then for one day at 37 °C. Markers of hemolysis and free radical metabolism were examined before and after incubation in LL and HL samples. In spite of the difference of leukocytes counts in LL and HL resuspensions (p<0.0001), the pre-incubation values of all laboratory parameters were practically identical. In post-storage samples, superoxide dismutase and glutathione peroxidase activities did not differ in either group. Reduced glutathione in erythrocytes and extracellular antioxidant capacity were insignificantly lower in HL resuspensions, but the increase of malondialdehyde was much more pronounced in the HL samples (p<0.0001). The degree of hemolysis, expressed as the extracellular increase of potassium (p<0.001), hemoglobin (p<0.05) and lactate dehydrogenase (p<0.05), was higher in the HL samples. Our results support the hypothesis that leukocytes participate in free radical production in stored blood., J. Racek, R. Herynková, V. Holeček, J. Faltysová, I. Krejčová., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10430. What May Be the Markers of the Male Equivalent of Polycystic Ovary Syndrome?
- Creator:
- Dušková, M., Čermáková, I., Hill, M., M., Šámalíková, P., and Stárka, L.
- Type:
- article, model:article, and TEXT
- Subject:
- Premature androgenic alopecia, Polycystic ovary syndrome, SHBG, Insulin tolerance, and Male phenotype of PCOS
- Language:
- English
- Description:
- Polycystic ovary syndrome (PCOS), the most common endocrinopathy in women (with a prevalence of 5-10 %), is characterized by hormonal and metabolic imbalance. Complexity of symptoms of close relatives of women with PCOS and genetic autosomal trait initiated a hypothesis about the existence of a male equivalent of PCOS. Premature alopecia was suggested as one of the signs of a male phenotype of this syndrome. The present study investigated a group of 30 men, in which premature hair loss started before 30 years of age. In all patients, their hormonal profile was determined. It was possible to form two subgroups. The first one showed similar hormonal changes as women with PCOS, the other had either no anomalies in steroid spectrum or just only lower level of sexual hormones binding globulin (SHBG). Both subgroups did not differ in either BMI or age. In all men with premature alopecia insulin tolerance test was also carried out and the occurrence of allele 3 INS VNTR was investigated, which is one of the candidate genes for PCOS. The subgroup with hormonal changes resembling those of women with PCOS showed a significantly higher insulin resistance than the group without these changes. About one third of the premature balding men showed the combination of hormonal shifts and higher insulin resistance. This frequency corresponds to the prevalence of PCOS in women. There was no significant difference between the two subgroups in the occurrence of allele 3 INS VNTR.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public