scholarly journals Alföldi tanyák és tanyapolitikák a múltban és a jelenben

Author(s):  
Ágnes Bray ◽  
Teréz Kovács

This paper provides a historical and economical overview of the way in which scattered farmsteads in the Great Plain have evolved over time, from their rise to their decline. From the end of the 17th century to the middle of the 20th century, these scattered farmsteads played a crucial role in agricultural production. From 1949, the Hungarian Communist Party limited the opportunities for the construction of new buildings to scattered farmsteads, which lead to a sharp population decline: the share of population living on the Great Plain in scattered farmsteads declined from around 30% in 1910 to 6% in 1990. After the system change in the era of new capitalism, scattered farmsteads are no longer places for living and agricultural production only, but have other functions as well, such as rural tourism, leisure, holiday accomodation, gastronomic services, second homes as horse riding.

Asian Survey ◽  
2003 ◽  
Vol 43 (4) ◽  
pp. 553-597 ◽  
Author(s):  
Li Cheng ◽  
Lynn White

This essay offers data about China's Central Committee, Politburo, and Standing Committee, e.g., turnover rates, generations, birthplaces, educations, occupations, ethnicities, genders, experiences, and factions. Past statistics demonstrate trends over time. Norms of elite selection can be induced from such data, which allow a broad-based analysis of changes in China's technocracy. New findings include evidence of cooperation among factions and swift promotions of province administrators.


2021 ◽  
pp. 232102222110514
Author(s):  
Kolawole Ogundari ◽  
Adebola Abimbola Ademuwagun ◽  
Ogechukwu Appah

The climatic change crisis has led to a renewed interest in understanding the dynamic of climatic variability over time. This is because rainfall variability in response to climate change poses a severe threat to global food security and agricultural production in general. As a result of this, the study investigates the convergence of rainfall variability in Nigeria. We use historical climate data on annual rainfall collected from meteorological stations across 12 states and covering 1992–2013. This gives rise to a balanced panel data of 12 states and 20 periods, which yields 240 observations. The study used a sigma convergence hypothesis test estimated using ordinary least square, fixed-effect and feasible generalized least square models. The coefficient of variation is taken as a measure of rainfall variability in the study. The results showed a negative (declining) linear correlation between rainfall’s coefficient of variation and data year. This means that rainfall variability decreased over time. This indicates evidence of convergence of rainfall, which means states with lower average annual rainfall are catching up on states with higher average annual rainfall over time. And, from the agricultural production standpoint, this result shows that the potential threat of rainfall variability to food security is not severe. In addition, it indicates a decrease in risk and uncertainty in food crop production associated with rainfall variability. JEL Classifications: O13, O55, Q10, Q54


Author(s):  
V. Byba

It is revealed that on the basis of socio-economic relations a system of moral and cultural values ​​of the farmer's professional activity, which is influenced by national peculiarities of agricultural production, as well as the acquired experience and traditions, is formed. The article considers the market transformations of the domestic economy, which resulted in the manifestation of destabilizing factors in the production and sales activity and the possibilities of expanded reproduction. In the study of the activities of farms conducted an assessment of their behavior in the context of medium, large and small business entities. The corresponding calculations have been carried out, which made it possible to conclude that the value of profitability of small farms is subjectively underestimated as a result of shadowing of their production and economic activity. It is argued that the diversification of the activities of farms creates positive externalities, in particular, the preservation of the features of the rural landscape and the creation of jobs in rural areas, reducing pollution and improving the quality of the soil. The average length of employment in the production process is determined, which is 2-3 months in terms of full employment, which requires substantiation of diversification of production activities. It has been established that the shadowing of the activities of members of farms is mainly related to non-agricultural activities, and is conditioned by the peculiarities of taxation of such farms. It is proved that the application of the grading principle of aggregate income will enable the tax payer to be taken into account when calculating the amount of tax, and therefore more consistent with the principle of social justice. It is substantiated that the formation of a strategy of diversification of domestic agricultural production based on the experience of leading countries requires its implementation taking into account national peculiarities and factors of influence. The following main internal and external factors that influence the process of diversification are distinguished: external – the development of the regional economy and the local labor market, the state of their infrastructure; among the internal factors: the level of education, age structure of the population, social capital in the countryside, the position of commodity producers in the industry, which are supported by state programs. Based on the study of rural tourism development opportunities based on FАRM and expert assessments, 37% of farmers can realize the idea of ​​creating conditions for rural tourism on their own, due to the lack of infrastructure of farms and rural areas. Among the main conditions for the development of rural tourism on the basis of farms are as follows: definition of the potential of rural tourism development at the regional level, ensuring the safety of tourists living, working out the schemes of visiting tourist routes, attracting tourists working in the region, organizing a large-scale advertising campaign. Key words: farm, diversification, rural tourism, folk crafts, non-agricultural activity, taxation.


2021 ◽  
Vol 251 ◽  
pp. 02075
Author(s):  
Yang Xuyan ◽  
Gong Na

For a long time, the Communist Party of China Central Committee and the State Council have attached great importance to rural development. At the report of the 19th National Congress, the Communist Party of China clearly pointed out that we should firmly “implement the Rural Revitalization Strategy” and “adhere to the priority development of agriculture and rural areas”. With the improvement of rural ecological environment and the development of economic construction, rural tourism has become more and more popular among the public, and has become one of the important pillars of Rural Revitalization and poverty alleviation. At the same time, rural tourism has greatly increased villagers’ income, improved villagers’ quality of life, and improved villagers’ happiness index. It can be seen that the rural tourism industry and the implementation of Rural Revitalization Strategy promote each other, and the positive development of rural tourism is the only way to promote the construction of new socialist countryside. This paper discusses how to realize the sustainable development of rural tourism in the context of Rural Revitalization from the perspective of the long-term significance of rural tourism to Rural Revitalization and the ways to develop rural tourism.


2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Aaron C.H. Davey

The father of quantum mechanics, Erwin Schrodinger, was one of the most important figures in the development of quantum theory. He is perhaps best known for his contribution of the wave equation, which would later result in his winning of the Nobel Prize for Physics in 1933. The Schrodinger wave equation describes the quantum mechanical behaviour of particles and explores how the Schrodinger wave functions of a system change over time. This project is concerned about exploring the one-dimensional case of the Schrodinger wave equation in a harmonic oscillator system. We will give the solutions, called eigenfunctions, of the equation that satisfy certain conditions. Furthermore, we will show that this happens only for particular values called eigenvalues.


Sociobiology ◽  
2017 ◽  
Vol 64 (1) ◽  
pp. 42 ◽  
Author(s):  
Lubiane Guimarães Cestaro ◽  
Maria Luisa Teles Marques Florêncio Alves ◽  
Dejair Message ◽  
Marcos Vinícius Gualberdo Barbosa Silva ◽  
Érica Weinstein Teixeira

The practice of migratory beekeeping is based on moving honey bee (Apis mellifera) colonies between different locations to intensify agricultural production through improved pollination services. However, due to stress caused by exposure of bee hives to different environments, migratory beekeeping activities can lead colonies to greater susceptibility of these insects to pathogens and pests, thus leading to population decline and mortality. The aim of this study was to evaluate the health profile of apiaries that adopt two types of management (stationary and migratory), located in the central-eastern region of São Paulo state, Brazil, during two sampling periods, one in spring (October 2010), and one in autumn (May 2011). We collected 474 samples of honeycomb from the brood area, combs containing capped brood, adult bees that covered the brood area, and foraging bees, to evaluate the presence and prevalence of Paenibacillus larvae, Varroa destructor, Nosema apis and N. ceranae. Seasonality was identified as a determining factor in the health condition of Africanized A. mellifera colonies, causing a stronger effect on health than the type of management employed (stationary vs migratory beekeeping). The infection rates of N. ceranae were higher during the autumn in relation to the spring (387 ± 554 spores per bee in the spring and 1,167 ± 1,202 spores per bee in the autumn in stationary apiaries and 361 ± 687 spores per bee in the spring and 1,082 ± 1,277 spores per bee in the autumn in migratory apiaries). The same pattern was found for infestation rates of V. destructor (2.83 ± 1.97 in the spring and 9.48 ± 6.15 in the autumn in stationary apiaries and 3.25 ± 2.32 in the spring and 6.34 ± 6.58 in the autumn in migratory apiaries). These results demonstrate that the seasonality affects the health of A. mellifera colonies, but it does not depend on the type of management adopted (stationary or migratory).


Author(s):  
Liza Gijanto

Analysis of ceramics in archaeological contexts has provided a range of information regarding African history. Archaeologists have approached ceramics as a craft as well as an indicator of identity and status. The Africanist focus on the technological development of ceramic manufacture and production has taken several forms. The most notable are (1) the origins of ceramic production, (2) the spread and independent invention of this technology and regional styles through typological analysis, and (3) technological change related to the identity of the producers and consumers including changing dietary practices over time. The various arguments put forth for the first production and use of ceramics in different regions of the continent are connected to the exploitation of available resources such as fish as well as the rise of agricultural production. Following the appearance and technical history of ceramics in various regions of the continent, a focus on foodways and regional cuisine has placed ceramics at the forefront of interpretation.


2019 ◽  
Vol 51 (03) ◽  
pp. 573-605 ◽  
Author(s):  
Miguel Martín-Retortillo ◽  
Vicente Pinilla ◽  
Jackeline Velazco ◽  
Henry Willebald

AbstractThis article is the first of its kind to offer a quantitative estimation of the evolution of Latin American agricultural production and productivity between 1950 and 2008. It also uncovers the extent to which the increases in production were due to increases in factors of production or to efficiency gains. Our findings reveal that efficiency gains made a rather modest contribution to the substantial increase in production, although their role became increasingly large over time and were highly significant between 1994 and 2008. Capital was the most important productive factor in explaining increases in output.


Plant Disease ◽  
2020 ◽  
Vol 104 (6) ◽  
pp. 1647-1653 ◽  
Author(s):  
Leiming He ◽  
Kaidi Cui ◽  
Tongtong Li ◽  
Yufei Song ◽  
Ning Liu ◽  
...  

Gray mold caused by Botrytis cinerea is a fungal disease that critically threatens agricultural production, and carbendazim was the first fungicide used to control B. cinerea. However, B. cinerea developed serious resistance to carbendazim, and this fungicide has thus rarely been used in the past decade in China. Due to the extended discontinuation of carbendazim use, the evolution of the resistance of B. cinerea to carbendazim in recent years is unclear, and whether carbendazim can effectively control gray mold is largely unknown. Therefore, this study determined the sensitivity of 407 B. cinerea isolates collected from 2014 to 2018 to carbendazim and the ability of carbendazim to control gray mold in the field. The results showed that the frequency of B. cinerea isolates resistant to carbendazim remained above 95%. Three different mutation types responsible for the resistance of B. cinerea to carbendazim were identified at codon 198 in the β-tubulin gene sequence: E198V (changed from GAG to GTG), E198A (changed from GAG to GCG), and E198K (changed from GAG to AAG). Over the last 5 years, E198V was the major mutation. However, an analysis of its evolution revealed that the percentage of the E198V mutation declined after 2017 to 56.5% in 2018. In addition, the proportion of isolates with the E198K mutation decreased over time, and no isolates with this mutation were found in either 2017 or 2018. The proportion of the E198A mutation increased over the 5-year test period to reach 43.5% in 2018. Furthermore, three greenhouse experiments demonstrated that carbendazim has lost its ability to control gray mold. We attribute the above findings to our results showing that the carbendazim-resistant isolates had no fitness penalties compared with the carbendazim-sensitive isolates for sporulation and mycelial growth. In particular, the E198A mutant isolates exhibited a strong ability to sporulate, suggesting that the E198A mutation might become dominant in the future. Interestingly, the results showed that carbendazim-sensitive isolates could be easily controlled by four conventional fungicides, namely boscalid, procymidone, iprodione, and pyrimethanil, with mean EC50 values of 0.71 ± 0.2 mg liter−1, 1.33 ± 0.39 mg liter−1, 0.59 ± 0.33 mg liter−1, and 6.02 ± 3.02 mg liter−1, respectively. In conclusion, carbendazim has lost its application value and is ineffective for the control of gray mold.


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