Suchergebnisse

The objective of this study was to evaluate the soybean oversowing with braquiarão (Urochloa brizantha cv. Marandu) and colonião (Panicum maximum cv. Aruana) and the capacity of these forage crops to produce dry mass during the fall-winter-spring period. Two experiments, one for each forage species, were conducted in field conditions in the 2011/2012 season and were repeated in 2012/2013. The experimental set-up was arranged in a randomized block design with four repetitions in a 2 x 5 factorial. The soybean oversowing was studied in the development stages R6 and R8 (2011/2012) or R5 and R8 (2012/2013) with braquiarão or colonião grass in five seed amounts (200, 400, 600, 800 and 1000 points of cultural value – PCV = seeds amount x culture value). In both seasons, the braquiarão oversowing at soybean stages R5 and R6 resulted in higher dry mass production, when compared to stage R8. Additionally, the amount of 600 seeds PCV was sufficient to obtain an excellent percentage of soil cover (>95%), in addition to the satisfactory number of plants per m2 and the dry mass production. On the other hand, independent of the soybean development stage in the oversowing moment, colonião was not promising for use in this sowing type because its low stand and irregular soil covering, even at the higher seed amounts.

Abstract. Maps of areas with different vulnerability degrees are an integral part of environmental protection and management policies. It is difficult to assess the intrinsic vulnerability of karst areas since the stage and type of karst structure development and its related underground discharge behaviour are not easy to determine. Therefore, some improvements, which take into account dolines, caves and superficial lineament arrangement, have been integrated into the SINTACS R5 method and applied to a karst area of the south-eastern Murge (Apulia, southern Italy). The proposed approach integrates the SINTACS model giving more weight to morphological and structural data; in particular the following parameters have been modified: depth to groundwater, effective infiltration action, unsaturated zone attenuation capacity and soil/overburden attenuation capacity. Effective hydrogeological and impacting situations are also arranged using superficial lineaments and karst density. In order to verify the reliability of the modified procedure, a comparison is made with the original SINTACS R5 index evaluated in the same area. The results of both SINTACS index maps are compared with karst and structural features identified in the area and with groundwater nitrate concentrations recorded in wells. The best fitting SINTACS map is then overlaid by the layout of potential pollution centres providing a complete map of the pollution risk in the area.

We evaluate the effect of medical and recreational dispensary openings on housing prices in Denver, Colorado. Using an event study approach, we find that the introduction of a new dispensary within a half‐mile radius of a new home increases home prices by approximately 7.7% on average. The effect diminishes for homes further from new dispensaries but is consistent over time. Our results provide important and timely empirical evidence on the socioeconomic impacts of marijuana legalization. (JEL R32, R38, R5)

The use of incentive packages has intensified as local governments compete for new plants and corporate relocations, and as private firms increasingly demand a deal. While incentives promise jobs and tax revenue, scholars and practitioners criticize their high cost and limited accountability. Through a comparison of matched establishments, this paper explores how governmental incentive-granting strategy impacts incentive performance. We examine the overall impact of incentives and whether incentives granted to smaller firms perform better. Using economic development budget data, we also assess the state's overall approach to economic development to determine which strategies are prioritized through funding. By showing that incentivized firms fail to create more jobs than matched controls, our analysis casts doubt on claims that "but for" incentives job creation would not occur. Still, our findings suggest that states are smarter in their incentive use when they strike a balance between recruiting industry and supporting "homegrown" businesses and technology.

Research background: Real estate and urban economics literature is abundant in studies discussing various types of property taxes and their characteristics. Growing area of research focused on tax equity, tax competition, and tax mimicking. Recently, due to substantial developments in spatial and regional economics more attention was drawn to spatial effects. Empirical results are focused on spatial interaction and diffusion effects, hierarchies of place and spatial spillovers. Property tax system in Poland differs from those utilized in the majority of developed countries. As a consequence, property tax policy at local government level (including tax competition and tax mimicking effects) in Poland can differ substantially from those found in previous research in US and other European countries. There are few studies addressing the problem of tax competition and tax mimicking in Poland from empirical perspective. Purpose of the article: In the article we explore spatial dependences in property taxation. We identify clustering or dispersion of high and low values of the tax rates within major metropolitan areas in Poland. The effects can indicate presence of tax mimicking among municipalities in given metropolitan areas. Methodology/methods: We analyze the panel data from 304 municipalities in 10 metropolitan areas in Poland from year 2007 to 2016. The data covers four property tax rates: (1) on residential buildings (2) on buildings used for business purpose (3) on land used for business purpose (4) on land for other uses. To explore spatial distribution of rates we used global and local spatial autocorrelation indicators (Moran's I statistic and LISA). Findings: The results suggest the presence of spatial correlation within metropolitan areas. We also found significant differences between metropolitan areas. The results of the study fill the gap in empirical research concerning property tax mimicking in Poland.

Two hypotheses about the determinants of Russian intergovernmental grants are tested empirically. According to first hypothesis, federal transfers to regions correlate with recent voting behavior of regional electorates. Second hypothesis states that transfers are higher in regions with politically powerful governors. We find a strong confirmation for the first hypothesis and no evidence for the second for years 1995-1998. This result is robust across specifications. Panel data analysis allows us to control for regional fixed effects. However, in years 1999-2001 election variables show no effect on transfers. It appears that in the nineties transfers were used by the incumbent government to enhance its reelection probabilities, while by the end of the century this mechanism was no longer in use as the transfer system has become more transparent and objective.

This paper analyzes, within a regional growth model, the impact of productive governmental policy and integration on the spatial distribution of economic activity. Integration is understood as enhancing territorial cooperation between the regions, and it describes the extent to which one region may benefit from the other region's public input, e.g. the extent to which regional road networks are connected. Both integration and the characteristics of the public input crucially affect whether agglomeration arises and if so to which extent economic activity is concentrated: As a consequence of enhanced integration, agglomeration is less likely to arise and concentration will be lower. Relative congestion reinforces agglomeration, thereby increasing equilibrium concentration. Due to the congestion externalities, the market outcome ends up in suboptimally high concentration.

We analyze a simple model of local public good provision in a country consisting of a large number of heterogeneous regions, each comprising two districts, a city and a village. When districts remain autonomous and local public goods have positive spillover effects on the neighboring district, there is underprovision of public goods in both the city and the village. When districts consolidate, underprovision persists in the village (and may even become more severe), whereas overprovision of public goods arises in the city as urbanites use their political power to exploit the villagers. From a social welfare point of view, inhabitants of the village have insufficient incentives to vote for consolidation. We examine how national transfers to local governments can resolve these problems.

We analyze the consequences of economic freedom on economic dynamism across U.S. states and over time. Using data from the Economic Freedom of North America index, we show that states with greater economic freedom have higher rates of gross and net job creation and establishment entry. The results are robust to the inclusion of many different control variables and alternative specifications, suggesting a connection between freedom and dynamism. This evidence supports theories in which government policies may impede business dynamism. (JEL 043, P16, R5)

The goal of the present study was to evaluate the biomass and grain yield, the morphological and chemical composition, production costs and the ruminal disappearance of the whole corn plant and grain-free corn plant harvested at different reproductive stages. The experimental design was completely randomized, consisting of six treatments, where each treatment corresponded to a stage of corn maturity. The advance of plant cycle promoted an increase in dry biomass and grain yields per unit area, reducing production costs. Higher participation of grains and lower participation of structural components promoted a reduction in NDF and ADF, with the lowest values in dough grain (R4) and dent grain (R5) stages. The advancement of stages promoted an increase in production and a reduction in costs, but significantly reduced the quality of grain-free plants, increasing the NDF, ADF and ADL; but R4 and R5 presented NDFd of 84.80 % and 82.79 %, respectively, showing to be a good quality fiber. R4 stage had the highest rumen disappearance values after 24 and 48 hours of incubation. Based on chemical data, ruminal disappearance, ruminal degradation kinetics of the whole corn plant and without grains, the R4 stage of the evaluated hybrid is the stage at which the plant had the best quality, representing the appropriate stage to harvest the material for making silage, aiming at the production of a silage with good chemical quality.

Gluten is the ethanol-soluble protein fraction of cereal endosperms like wheat, rye, and barley. It is widely used in the food industry because of the physical–chemical properties it gives to dough. Nevertheless, there are some gluten-related diseases that are presenting increasing prevalences, e.g., celiac disease, for which a strict gluten-free diet is the best treatment. Due to this situation, gluten labeling legislation has been developed in several countries around the world. This article reviews the gluten immune detection systems that have been applied to comply with such regulations. These systems have followed the development of antibody biotechnology, which comprise three major methodologies: polyclonal antibodies, monoclonal antibodies (mAbs) derived from hybridoma cells (some examples are 401.21, R5, G12, and α-20 antibodies), and the most recent methodology of recombinant antibodies. Initially, the main objective was the consecution of new high-affinity antibodies, resulting in low detection and quantification limits that are mainly achieved with the R5 mAb (the gold standard for gluten detection). Increasing knowledge about the causes of gluten-related diseases has increased the complexity of research in this field, with current efforts not only focusing on the development of more specific and sensitive systems for gluten but also the detection of protein motifs related to pathogenicity. New tools based on recombinant antibodies will provide adequate safety and traceability methodologies to meet the increasing market demand for gluten-free products.

The study empirically examined the impact of governance on domestic investment in 16 African countries with a balanced panel data set, between the years 2002 and 2015. The study employed six unbundled governance indicators from the World Bank, World Governance Indicators and constructed three bundled governance indicators using the Principal Component Analysis. The Driscoll and Kraay Fixed Effects model which accounts for serial correlation, groupwise heteroskedasticity and cross-sectional dependence were employed with empirical results revealing that all the indicators of governance positively and significantly influence domestic investment in Africa, except for government effectiveness which happens to be insignificant. Also, Voice/Accountability and the Control of Corruption exert more influence on domestic investment as indicated by their coefficient values. Furthermore, economic growth is also an important factor in explaining domestic investment in Africa. Policy recommendations are discussed.

This thesis, based on private papers, society records, autobiographies and memoirs, newspapers and periodicals, examines one mainly female imperialist organisation - the Victoria League - and the women who ran it. It considers two related questions - what made Edwardian women imperialist, and how, within the limits of Edwardian society, could they express their imperialism? The thesis shows that several of the League's founders and executive had visited South Africa during or shortly before the Boer War, and that this experience, particularly for those who came into close contact with Milner, was pivotal in stimulating them to active imperialism. The Victoria League, founded April 1901, aimed to promote imperial unity and a British South Africa in a variety of suitably 'womanly' ways: Boer War charities, imperial education, exporting literature and art to the white dominions (particularly the Transvaal), welcoming colonial visitors to Britain, arranging for the welcome of British settlers in the colonies, and promoting social reform as an imperial issue. It worked overseas through a number of independent Victoria Leagues in Australasia, the Imperial Order, Daughters of the Empire in Canada, and the Guild of Loyal Women in South Africa; and at home with a number of similar (though largely male) imperial propaganda societies. The thesis also considers the Victoria League's attitude to race, particularly through its debate over entertaining Indian students. It ends with a discussion of the options available to imperialist women; and of the obstacles they faced in questions of authority (how far and in what ways a woman could pronounce on imperial subjects) and of ideology (as expressed through the anti-suffrage campaign). It concludes that the Victoria League, by transferring areas of activity long acknowledged as 'feminine' to the imperial stage, redefined areas of female competence and enlarged woman's 'separate sphere' to include the active propagation of imperialism.

Local governments have borrowed largely from the banking system to finance their deficits instead of responding to the rigors of bond markets. This paper analizes how sub-national governments optimally reallocate the provision of public goods and decide on borrowing, in a model where the banking system faces a soft budget constraint. In contrast with recent literature, sub-national governments allocate a higher (lower) than optimal amount of resources to consumption public goods (infrastructure investment) and overborrow if they expect the banking system to be bailed out. Controls on sub-national borrowing like the golden rule seem to be inefficient to avoid excesive indebtedness at state level.

•International Committee of the Red Cross, "How Law Protects Persons with Disabilities in Armed Conflict", 13 December 2017, available at: www.icrc.org/en/document/how-law-protects-persons-disabilities-armed-conflict (all internet references were accessed in November 2022).•International Committee of the Red Cross, "Chapter 3: Needs of the Civilian Population in Increasingly Long Conflicts: Selected Issues", in International Humanitarian Law and the Challenges of Contemporary Armed Conflicts: Recommitting to Protection in Armed Conflict on the 70th Anniversary of the Geneva Conventions, 2019, available at: www.icrc.org/sites/default/files/document/file_list/challenges-report_the-needs-of-civilians-in-increasingly-long-conflicts.pdf.•33rd International Conference of the Red Cross and Red Crescent, "Addressing Mental and Psychosocial Needs of People Affected by Armed Conflicts, Natural Disasters and Other Emergencies", Resolution 33IC/19/R2, Geneva, Switzerland, 9–12 December 2019, available at: https://pscentre.org/wp-content/uploads/2020/10/solution.pdf.•Council of Delegates of the International Red Cross and Red Crescent Movement, "International Red Cross and Red Crescent Movement Policy on Addressing Mental Health and Psychosocial Needs", Resolution CD/19/R5, Geneva, Switzerland, 8 December 2019, available at: https://pscentre.org/wp-content/uploads/2020/10/CD19-R5-Adopted-MHPSS-need-policy-draft-resolution-FINAL-EN_clean.pdf.•33rd International Conference of the Red Cross and Red Crescent, "Bringing IHL Home: A Road Map for Better National Implementation of International Humanitarian Law", Resolution 33IC/19/R1, Geneva, Switzerland, 9–12 December 2019, available at: https://rcrcconference.org/app/uploads/2019/12/33IC-R1-Bringing-IHL-home_CLEAN_ADOPTED_FINAL-171219.pdf.