Changes in excitability of a command neuron in the initial period of conditioning in Helix pomatia

1980 ◽  
Vol 10 (6) ◽  
pp. 539-547 ◽  
Author(s):  
E. G. Litvinov ◽  
D. B. Logunov
Author(s):  
Ihsan Sanusi

This article in principle wants to examine the history of the emergence of the conflict of Islamic revival in Minangkabau starting from the Paderi Movement to the Youth in Minangkabau. Especially in the initial period, namely the Padri movement, there was a tragedy of violence (radicalism) that accompanied it. This study becomes important, because after all the reformation of Islam began to be realized by reforming human life in the world. Both in terms of thought with the effort to restore the correct understanding of religion as it should, from the side of the practice of religion, namely by reforming deviant practices and adapted to the instructions of the religious texts (al-Qur'an and sunnah), and also from the side of strengthening power religion. In this case the research will be directed to the efforts of renewal by the Padri to the Youth towards the Islamic community in Minangkabau. To discuss this problem used historical research methods. Through this method, it is tested and analyzed critically the records and relics of the past. In analyzing the data in this research basically used approach or interactive analysis model by Miles and Huberman. In this analysis model, the three components of the analysis are data reduction, data presentation, and conclusion drawing or verification, the activity is carried out in an interactive form with the process of collecting data as a process that continues, repeats, and continues to form acycle.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Maciej Ligaszewski ◽  
Przemysław Pol

AbstractThe aim of this study was to compare the quality of clutches and reproduction results of two groups of Roman snails (Helix pomatia) from the same local population, laying eggs simultaneously in semi-natural farm conditions and in a natural habitat. The study material were Roman snails aged 2 or more years which had entered the third phenological season of their life and thus the first season of sexual maturity. Observations were conducted at an earthen enclosure in a greenhouse belonging to the experimental farm for edible snails at the National Research Institute of Animal Reproduction in Balice near Kraków (Poland) as well as at a site where a local population naturally occurs in the uncultivated park surrounding the Radziwiłł Palace. In the June-July season, differences among such parameters as weight of clutch, number of eggs in clutch, mean egg weight, and hatchling percentage when compared to the total number of eggs in the clutch were compared. It was determined that clutches of eggs from the natural population laid in the greenhouse were of lesser weight (P<0.01), contained fewer eggs (P<0.05), and the mean weight of individual eggs was less (P<0.05) than in clutches laid simultaneously in a natural habitat. Both in the greenhouse and the natural habitat, in the first phase of laying eggs (June) the weight of the clutch and number of eggs its contained were greater than in the second phase (July). However, only for snails laying eggs in the greenhouse were these differences statistically significant (P<0.05) and highly significant (P<0.01), respectively. Statistically significant differences were not observed in hatchling percentage between eggs laid in the greenhouse and the natural habitat. The lower number of eggs laid in the farmed conditions of the greenhouse was successfully compensated for by the absence of mass destruction by rodents which occurred in the natural habitat.


2020 ◽  
Vol Special issue (1) ◽  
pp. 68-74
Author(s):  
Aliakbar Khojiev ◽  
◽  
Rustam Murodov

2019 ◽  
Vol 17 (2) ◽  
pp. 75-84
Author(s):  
Ilyas Shakirov ◽  

In the article considered events between 1945-1965 years in Singapore. On the ground of historical sources author of the given article learned the history of gaining independence by Singapore, as well, difficulties country carried out over 20 years


1980 ◽  
Vol 45 (9) ◽  
pp. 2391-2399 ◽  
Author(s):  
Miroslav Kašpar ◽  
Jiří Trekoval

The polymerization kinetics of isoprene (2-methyl-1,3-butadiene) in benzene with butyllithium as the initiator was investigated by the gas chromatographic method. After completion of the initial period of the reaction, its order with respect to the initial concentration of initiator is negative at the concentrations of the latter between 0.01 and 0.25 mol/l, and positive at higher concentrations. A reaction scheme has been suggested with respect to the "cross" association of butyllithium and of the "living" oligoisoprene.


2019 ◽  
Vol 155 (1) ◽  
Author(s):  
Michaela Slotwinski ◽  
Alois Stutzer ◽  
Roman Uhlig

Abstract In the face of recent refugee migration, early integration of asylum seekers into the labor market has been proposed as an important mechanism for easing their economic and social lot in the short as well as in the long term. However, little is known about the policies that foster or hamper their participation in the labor market, in particular during the important initial period of their stay in the host country. In order to evaluate whether inclusive labor market policies increase the labor market participation of asylum seekers, we exploit the variation in asylum policies in Swiss cantons to which asylum seekers are as good as randomly allocated. During our study period from 2011 to 2014, the employment rate among asylum seekers varied between 0 and 30.2% across cantons. Our results indicate that labor market access regulations are responsible for a substantial proportion of these differences, in which an inclusive regime increases participation by 11 percentage points. The marginal effects are larger for asylum seekers who speak a language that is linguistically close to the one in their host canton. Summary Inclusive labor market access regulations substantially increase the employment chances of asylum seekers, in particular if the language distance is short.


2021 ◽  
Vol 122 ◽  
pp. 105912
Author(s):  
Farhana Safa ◽  
Afifa Anjum ◽  
Sahadat Hossain ◽  
Tonima Islam Trisa ◽  
Syeda Fatema Alam ◽  
...  

2021 ◽  
Vol 7 ◽  
pp. 237802312098820
Author(s):  
Thurston Domina ◽  
Linda Renzulli ◽  
Brittany Murray ◽  
Alma Nidia Garza ◽  
Lysandra Perez

Using data from a spring 2020 survey of nearly 10,000 parents of elementary school parents in one large southeastern public school district, the authors investigate predictors of elementary school student engagement during the initial period of pandemic remote learning. The authors hypothesize that household material and technological resources, school programming and instructional strategies, and family social capital contribute to student engagement in remote learning. The analyses indicate that even after controlling for rich measures of family socioeconomic resources, students with access to high-speed Internet and Internet-enabled devices have higher levels of engagement. Exposure to more diverse socioemotional and academic learning opportunities further predicts higher levels of engagement. In addition, students whose families remained socially connected to other students’ families were more likely to engage online.


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