Multiple Staggered Mesh Ewald: Boosting the Accuracy of the Smooth Particle Mesh Ewald Method

The smooth particle mesh Ewald (SPME) method is the standard method for computing the electrostatic interactions in the molecular simulations. In this work, the multiple staggered mesh Ewald (MSME) method is proposed to boost the accuracy of the SPME method. Unlike the SPME that achieves higher accuracy by refining the mesh, the MSME improves the accuracy by averaging the standard SPME forces computed on, e.g. $M$, staggered meshes. We prove, from theoretical perspective, that the MSME is as accurate as the SPME, but uses $M^2$ times less mesh points in a certain parameter range. In the complementary parameter range, the MSME is as accurate as the SPME with twice of the interpolation order. The theoretical conclusions are numerically validated both by a uniform and uncorrelated charge system, and by a three-point-charge water system that is widely used as solvent for the bio-macromolecules

Microfinance, MSMEs and the Macro Economy: Evidence from India

Much of prior literature on the relationship between microfinance and the macro-economy has focused on the effect of the latter in determining the success of microfinance institutions (MFIs). However, the microfinance industry has been underserved in studies evaluating microfinance as a legitimate contributor toward macro-economic growth. Researching this connection would provide a clearer direction for policymakers to support microfinance, and the institutions that foster such activities. This paper investigates the hypothesis that microfinance is not only important to the people at the bottom of the socio-economic pyramid, but for the overall health of a national economy. We explore different mechanisms as to how microfinance could affect the macro-economy, and simultaneously enable the growth of micro, small and medium enterprises (MSMEs), and evaluate the possibility of such scenarios

Limits on light-speed anisotropies from Compton scattering of high-energy electrons

The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge photons at the ESRF's GRAAL facility constrains such anisotropies representing the first non-threshold collision-kinematics study of Lorentz violation. When interpreted within the minimal Standard-Model Extension, this result yields the two-sided limit of 1.6 x 10^{-14} at 95% confidence level on a combination of the parity-violating photon and electron coefficients kappa_{o+} and c. This new constraint provides an improvement over previous bounds by one order of magnitude.Comment: 4 pages, 4 figure

Non-farm employment in small-scale enterprises in Romania: policy and development issues

The aim of this paper is to summarise the results of a non-farm micro- enterprise survey in rural and peri-urban Romania and to examine their impact on the development of sustainable rural livelihoods. As these firms operate in fixed locations and are therefore more easily located and observed, most of the data presented s based on our survey of firms in Brasov and Dolj counties of Romania. This data is complemented with information about unregistered gathering, hawking, and handicraft activities collected through our qualitative social development studies in the same counties. Both categories of information document the situation at a particular point in time and can provide insights into the functioning of enterprises, but not on the dynamics of change. There are however, some initial complications in understanding the operation of small non-farm firms. On the one hand, for many of those involved in rural non-farm enterprise activities, there is no difference between activities to meet their subsistence needs and producing for the market. Thus, they sell what is surplus to their needs or in response to the opportunity selling provides to generate additional cash income. On the other hand, many of the registered rural non-farm firms are commercially oriented and operate in a competitive market. We consider the nature and extent of rural non-farm enterprises and outline their main characteristics.Rural Non-Farm, Economic Development, poverty, enterprise development

Unleashing The Growth Potential Of Indian MSME Sector

The MSME sector occupies a position of strategic significance in the Indian economic structure. This sector contributes nearly eight per cent to country’s GDP, employing over 80 million people in nearly 36 million widely-dispersed enterprises across the country; accounting for 45 per cent of manufactured output, 40 per cent of the country’s total export, and producing more than 8000 valueadded products ranging from traditional to high-tech. Furthermore, these enterprises are the nurseries for innovation and entrepreneurship, which will be key to the future growth of India. It is also an acknowledged fact that this sector can help realise the target of the proposed National Manufacturing Policy to enhance the share of manufacturing in GDP to 25 per cent and to create 100 million jobs by the end of 2022, as well as to foster growth and take India from its present two trillion dollar economy to a 20 trillion dollar economy. Despite the sector’s high enthusiasm and inherent capabilities to grow, its growth story still faces a number of challenges. In this light, the present paper examines the role of Indian MSMEs in India’s economic growth and explores various problems faced by the sector. The paper also attempts to discuss various policy measures undertaken by the Government to strengthen Indian MSMEs. Finally, the paper proposes strategies aimed at strengthening the sector to enable it to unleash its growth potential and help make India a 20 trillion dollar economy

Study Of The Challenges That Hinder MSME Development In Montenegro : Country Report for the British Council and Swedish Institute

In addition to this Study, a further six studies were produced. One for each of the countries, under investigation (Albania, Bosnia Herzegovina, FYR Macedonia, Kosovo & Serbia) and a Main Report, which was published in May 2018.The European Commission’s Enlargement Package Report (2015), concluded that Montenegro continued to make progress as regards the political and economic criteria, and improved its ability to take on the obligations of EU membership. Good progress was made in improving the legislative framework for the independence of the judiciary and the fight against corruption (rule of law chapters, 23 and 24). However, Montenegro was tasked to make further progress in strengthening the institutional framework and in establishing a solid track record in the fight against corruption and organised crime. In December 2015, Montenegro received an invitation to join NATO, which was a major achievement; it became a member in 2017.  With a gross domestic product (GDP) of US 4.1 billion (constant 2010 value), Montenegro is the smallest economy in the Western Balkans and growth has been variable in recent years. However, Montenegro continues to play a constructive role in regional cooperation, ratifying its border agreements with both, Bosnia & Herzegovina and Kosovo. It terms of economic criteria, Montenegro has made progress in developing a functioning market economy (e.g. investments in infrastructure and tourism support economic activity). It has also strengthened the administration of its financial and labour markets, as well as on improving the business environment.. However, rapidly rising public debt and high fiscal deficits, together with high external imbalances and high unemployment are of concern. The combined effects of large-scale public infrastructure investments and several new expensive social expenditure programmes challenge fiscal sustainability. Montenegro is moderately prepared in its capacity to cope with competitive pressure and market forces within the Union. Some progress was achieved in improving the quality of infrastructure, the energy market and the digitalisation of the economy. SMEs support is modest but developing gradually. Unemployment in Montenegro is high, approaching 18% of the working population. However, this is average for the region, and only Serbia and Albania have lower rates. Montenegro is, however, a major importer of short-term labour to service the needs of the tourism, construction and agricultural sectors, which are the main pillars of its economy. However, substantial efforts are still required to develop human capital and a competitive export-oriented industry. In common with many of its Western Balkan neighbours, Montenegro has a skills shortage, although not to the extent of other countries. This shortage mainly translates into a need to import seasonal workers for the tourist, construction and agricultural sectors. Montenegro has a well-developed and competitive ICT sector compared with other countries in the region, but development remains in its infancy and there is a lot of potential for improvement. Despite this, business faces internal constraints and barriers, linked to skills, competences, finance and human resources. They also had problems with lack of information about foreign markets and how to access them. To contribute to the process of internationalisation, businesses need a better introduction to foreign markets, including information and facilitating access through contacts, legal and technical assistance or promotion. Total inward investment in Montenegro from other countries was US 3.3 billion in 2016. This level is low in absolute terms, particularly compared to other countries in the region (behind Serbia, Bosnia, Macedonia and Albania), but relatively high on a per capita basis. We undertook a survey of aspiring entrepreneurs across Montenegro. The sample was largely self-selected based on previous telephone surveys where respondents had expressed an interest in entrepreneurship, plus a review of the commercial register and referrals from respondents. The age distribution of aspiring entrepreneurs was under represented in younger age groups but higher in the 25–34 year old group compared with the population. Entrepreneurship aspirations are positive. There are very few problems with structural issues such as ease of forming a company. For example, establishing a business in Montenegro can be a time-consuming process. According to the World Bank’s Doing Business Report (2018), Montenegro was ranked 42nd globally for ease of doing business, a clear improvement on its previous ranking of 51st. Results from our survey, indicate five key issues stand out: 1. Access to finance is very challenging and acts as a significant barrier to both innovation and entrepreneurship. There is a particular need for access to affordable seed capital. This is a similar to the challenge being addressed by some of the rural micro-finance programs in Asia. 2. Connection to markets outside Montenegro and the Western Balkans region is challenging for new entrepreneurs. 3. There is a considerable amount of energy and effort already being injected, but significant scope for improving the skills of entrepreneurial teams. 4. The trading channels and payment methods accepted suggest our entrepreneurs are using basic business models, almost entirely face-to-face and strongly cash-based. 5. Three quarters of all businesses in the survey supplied larger organisations, which may be accounted by the very large public-sector base