Three spectrophotometric methods were compared for the assessment of milk fat oxidation: the AOCS (American Oil Chemists' Society) 2-thiobarbituric acid (TBA) value direct method, the TBA method of Aristova, and the modified method for the estimation of total carbonyl compounds in oils of Endo et al. Two cow milk fat samples – a fresh fat, obtained from fresh milk, and a rancid fat, obtained from a rancid commercial butter by means of high-speed centrifugation (15.871 × g, 30 minutes at 40 deg C) – were analyzed several times in a 22-day period after sample preparation. A positive linear correlation between absorbance and storage time was established in all used methods. The method of Aristova is appropriate for exact determination of oxidation products. This method had rather good R2 value (0.85) of the fresh fat sample results; however, the coefficient of variation (45.78%) showed rather large deviations between parallel analyses. The methods of AOCS and Endo et al. can be used for the assessment of the dynamics of fat oxidation by reporting absorbance values from the assay directly. By these methods rather high R2 values (0.86, 0.93) of the fresh fat sample results were obtained; the coefficients of variation also were satisfactory (10.13%, 11.12%). The last two methods are cheaper and require smaller sample amounts (less than 0.2 g), while the method of AOCS is the most time-consuming method.

Recent studies have demonstrated the occurrence of different needle cast (Lophodermium spp.) species in young Scots pine Pinus sylvestris L. stands in different regions of Latvia. The impact of these fungi has been known also historically, but is predicted to increase in future due to climate changes that are forecasted to have a positive impact on presence and vigour of various species of fungi. The aim of the study was to characterize the needle cast damage in young Scots pine stands in central Latvia. Material was collected in 12 Scots pine stands at the age of 3 to 26 years in 28 plots with a total area of 8.1 ha in the middle of two consecutive growing seasons (years 2012 and 2013). The impact of disease was visually assessed using a 5 grade scale, depending on the proportion of damaged (brown) one-year old needles. Incidence of damaged trees (P, %) and damage intensity (R, %) was calculated and used to characterize the occurrence and severity of the infection in the stands as well as its link to other stand parameters. Damage incidence (ranging from 20 to 100%), as well as the intensity (from 4 to 35%) was slightly (incidence-also significantly) higher in 2013 in comparison to 2012; correlation between those two parameters was strong in both years (r = 0.94 and r = 0.84, respectively). The stand age, density (ranging from 1200 to 6900 trees haE-1) and tree height did not significantly correlate with the damage incidence or intensity. Forest type (Hylocomiosa or Myrtillosa mel.) was not a significant factor, too.

The theme of landscape identity becomes actualized beside with the impact of globalization. Landscape identity is closely linked to the Latvian national identity. The concept of identity is multifaceted and touches on a number of scientific areas that currently in Latvia are actively investigating this phenomenon. Landscape investigators admit the multidisciplinary structure of the concept of identity, including in their researches the investigations of historical, visual and associative aspects. Landscape identity is related to detection, identification and definition of landscape elements, because landscape elements are the key to the perception of identity. The method of landscape identity assessment is based on three stages: the assessment of the historic, visual and cognitive elements in formation of landscape identity. The assessment of historic elements in formation of landscape identity is associated with the investigation of historic materials and description of structural elements according to the stages of development. The assessment of visual structural elements of landscape identity is based on the material collected during the field work by filling in the landscape assessment matrix. The assessment of cognitive structural elements of landscape identity is based on the opinion survey, which makes it possible to find out the concealed associative identity. The information obtained in all stages of landscape identity assessment forms the landscape identity model. The aim of the research is to develop the method of landscape identity assessment. The research was carried out at Latvia University of Agriculture in 2010.

The landscape in Latvia is managed and planned in different levels and regulations. The survey has been undertaken in Latvia with the aim to assess the landscape as regards the aesthetical quality assessment in Latvian watermills and small-scale hydroelectric power plant territories by means of public perception. Duration of research was from May 2011 till March 2012. The method used in this survey is the public questionnaire method. Public notions concerning researched landscapes territories in Latvia reveal that the landscapes in these territories are mainly assessed critically; however, in the assessment of visual information from pictures taken in particular territories the results are different, and the value of these territories is mainly assessed positively. The contribution of Latvian people’s knowledge regarding improvement in the landscapes situations in researched territories of Latvia has to be realized.

The furniture industry is an innovative industry that produces high added value products and its turnover is several billions of Euros in Europe, and there mainly work small and medium-sized enterprises (abbreviation – SMEs). Nowadays competitiveness is an essential factor for both a country and its enterprises in the process of dealing with changing market conditions. The global market is changing and for enterprises it is too hard to position themselves and find the way how to differ from other competitors. From 2006 until 2010 a Latvian furniture market value, numbers of employees and enterprises in the sector and its share in GDP has decreased. As a result, there are the serious challenges to be met and increase their competitiveness in domestic and export markets. The author has made an in-depth research into influencing competitiveness factors of SME micro level in the furniture manufacturing industry. The study objective was to identify the key internal factors which influence the SME of Latvian furniture manufacturers. The aim was to obtain an internal factor of competitiveness assessment of the 30 respondents by random sampling method and expert method of factor assessment. The enterprises need to constantly increase their competitiveness. The internal factors influencing the competitiveness of SMEs are connected with the products, manufacturing of products, financial situation, management and marketing activities. The competitiveness level of Latvia`s SMEs in the furniture manufacturing has been evaluated as average in 70% of cases. Only 27% of the enterprises show a good level of competitiveness.

The role of small and medium-sized enterprises (SME) in the development of economics becomes more important, as they can quickly re-orientate in the rapidly changing economic situation, and they are the main guarantee of wellbeing on the regional scale. Although these enterprises are different, still the SME in the European Union meet several similar difficulties. One of the main problems of the SME is lack of management competences that causes difficulties in ensuring efficient management of the enterprises. The aim of the research was to investigate the competences that are necessary for the employees to carry out their duties from the point of view of small and medium-sized forest enterprises (SMFE). The task of the research was to identify problems faced by the SMFE management in daily business. To get results, the qualitative interview method was used as well as, survey was carried out, and the obtained data from well-established methodology and criteria were evaluated. The research results show that the distribution at the SME is specific professional competence with 40%, social competence with 23%, methodical and individual competence with 19% and 18%. The results show that necessary management competences in SME and large enterprises are equal, but the kind of their application and topicality differ; therefore, it is essential to organize activities of professional development concerning the definite model and type of business. The professional teaching models for SMFEs should be according to enterprises management specifics, focusing on the fact that managers of SMFEs to combine the competences.

Smart specialisation strategy (RIS3) is topical for each European Union member state – including the Baltic States. It is a smart tool for the European Union (EU) Structural Funds absorption from 2014 to 2020. Each EU member state has set their own priorities based on the country specialisation and economy strengths and weaknesses. For RIS3 development evaluation, there is RIS3 Assessment Wheel developed – a tool for assessing the RIS3 in a chosen region and positioning it between other regions. The aim of research is to find main differences between RIS3 development in the Baltic States. The tasks of research are 1) to compare existing RIS3 Assessment Wheel of Latvia and create authors version of RIS3 Assessment Wheel of Latvia; 2) to create RIS3 Assessment Wheel of Lithuania and Estonia; 3) to make comparisons between created RIS3 Assessment Wheels. The research performed is mainly based on the desk research by using content analysis and the monographic method. In all three Baltic States, there is a lack of information available about revision of priorities in connection with RIS3 development. In order to achieve the aims set in RIS3, it is essential to finish work on RIS3 legislation in Latvia, and introduce the systematic approach to RIS3 target evaluation in all Baltic States.

The global population has begun to rise exponentially; therefore, the demand for bioresources including food and fibre is increasing. An increasing demand for food and fibre necessitates more sustainable use of natural resources especially for soilbased ecosystem services. In this context, Functional Land Management was developed to optimize agricultural soilbased ecosystem services to meet both agricultural and environmental targets simultaneously. The aim of the research is to evaluate unmanaged agricultural land use change impact on primary productivity function in three parishes in Latvia by using Functional Land Management framework. Evaluation of primary productivity function was accomplished for both sectors agriculture and forestry by using profit and working hours as a proxyindicators. Production of vegetables and perennial plantations has higher supply of primary productivity function comparing to other land uses. Land use changes affect all soil functions that we expect from our land, especially primary productivity function. After applying land use changes, an increase in profit is higher in Liezere parish for both areas on mineral soils (7.1%) and areas on organic soils (5.2%); while an increase in working hours is higher in Usma parish: 36.6% in areas on mineral soils and 1.0% increase in areas on organic soils. Shortterm benefits are received from agricultural land, while forest land provides long-term return which increases over time but can only be obtained after reaching the age of felling. Before applying land use changes or changes in management practices we have to consider other soil function and national commitments.

Within the frame of the Nordic/Baltic public-private partnership ’PPP for pre-breeding in perennial ryegrass’ various activities were performed, including assessment of L. perenne (Lp) genotypes under agro-ecological conditions of Latvia. This article summarizes the data obtained in two harvest years for 19 intermediate tetraploid (4x) Lp genotypes. In order to compare the results obtained in ryegrass with performance of grass interspecies hybrids (Fl), which become especially relevant in the recent years, two varieties, developed in Latvia – Lolium × boucheanum Kunth. ‘Saikava’ and × Festulolium ‘Vizule’ were included in the experiment. Various scores were performed, including evaluation of regrowth, intensity of culm development, sward cover, crown rust (Puccinia coronata) susceptibility, etc. The dry matter yield (DMY) and fodder quality were also determined. It can be concluded that the genotypes showed relatively good results in the first two harvest years. Wintering conditions were favourable. Despite the intensified drought and heat in the 1st ley year, relatively high DMY, which ranged from 9.30 to 12.15 t haE−1, for Lp were harvested in three cuts. In the 2nd ley year, under more favourable humidity conditions, Lp in four cuts provided similar DMY, which ranged from 8.81 to 11.50 t haE−1. If we compare the average DMY of Lp and Fl genotypes, it can be concluded that in the first two harvest years no significant differences were found, the average DMY was 10.30 and 10.64 t haE−1, respectively. No significant differences were found between Lp and Fl in terms of forage quality.

Information and communication technology combined with multimedia and networking has enabled development of e-learning. E-learning opportunities expand access to education, without the learner’s social, economic and geographical barriers. The main question in this situation has to take into account the quality of e-learning materials. The aim of this research was to explore the definition of the quality and scientific research literature on e-learning quality, and identify the quality influencing factors. This article looks at quality standards and summarizes the existing literature on the quality aspects of electronic materials. During the research was analyzed the literature of the last 13 years. Findings showed that the quality evaluation model covers a wide scale — from one e-course to e-learning system implementation quality aspects. The quality of electronic learning material can be measured by technical, pedagogy and content criteria. The technical quality of the e-material (text, picture, video, sound recording, visual presentation, multimedia, etc.) is influenced by many factors and specifying for each type. The research should be continued to indicate the quality criteria for each type of e-materials including the degree of importance.