The development of science and technology introduces new approaches in plant breeding and various methods to increase plant productivity. One of the latest methods is the implementation of an environmentally friendly technique of using a pulsed low-frequency electromagnetic field (PEMP). The paper presents the results of the influence of the electromagnetic stimulation of soybean seeds on grain weight per plant, weight of 1,000 grains and grain yield in different agroecological conditions. In the three-year research, in the period from 2013 to 2015, the soybean variety Valjevka was used, grown with different amounts of fertilizers (control - without fertilization, 750 kg/ha and 1300 kg/ha). Before sowing, the seed was subjected to PEMP stimulation in variants: control - without stimulation and alternating magnetic field stimulation (PEMP) with induction of 30 mT and exposure time of 15 minutes. The average grain weight per plant during seed stimulation was 11.53% (12.09) higher than without PEMP (10.84). The weight of 1,000 grains with PEMP was 155.99 g, which was 2.06% higher than the weight of 1,000 grains of the variant without PEMP (152.83 g). The average soybean grain yield for all three years of research with seed stimulation was 4.85% higher (3,481.25 kg/ha) than without PEMP (3,320.14 kg/ha). Stimulation of seeds with PEMP has economic justification given the growth of soybean prices on the world stock market. The results show that the PEMP treatment of soybean seeds can significantly affect soybean grain yield and counteract side effects such as drought and lack of fertilizers.

The main paper goal is to create an adequate trend model by applying a quantitative research method, i.e. trend analysis that will enable prediction of apple production in the Republic of Srpska for a three-year period (2019-2021). Trend analysis involved the use of linear, quadratic and exponential trend models. Prediction is based on data time series for the period 1998-2018. Gained results show that although the unstable production it could be expected the growth of total production and number of apple trees, while apple yields are expected to decline in the observed period. Obtained results can serve for strategic approach in further development of this sector of fruit production.

The aim of the authors was to create an adequate trend model that would be able to forecast the results of potato production in Bosnia and Herzegovina for a three-year period (2019-2021) by using quantitative research method and trend analysis. Data collected during twenty-seven years (1992-2018) were used for forecasting, and the research results have indicated that the farming area and production of potato will decrease, while yield will be the only parameter of potato production that will show the tendency of growth in the obserevd three-year period. The obtained research results can be used for making strategic decisions related to the development of this branch of agricultural production.

The aim of this paper is to formulate quantitative models to predict future trends in corn production in the Republic of Srpska. The applied research methods are the descriptive analysis method, and the analytical statistical method, i.e. the Box-Jenkins Model based on the ARIMA model (Autoregressive Integrated Moving Average). The results of the research show that the corn production indicators, as the most important crop in the Republic of Srpska, will, despite the oscillations, show an increase in the last year of the five-year prediction period (2018-2022) compared to the previously analysed twenty-two year period (1996-2017). The formulation of such forecasting models is a good basis for planning the overall crop production in the Republic of Srpska.

The aim of this paper is to present the application of quantitative methods in the analysis of foreign trade indicators of corn in Bosnia and Herzegovina. Subsequently, based on the analysis, the forecast of import and export parameters was created for the 2018-20 period which predicted that corn imports and exports would increase both in the natural and value form. Furthermore, it was established for the observed period that Serbia was the largest importer of this crop to Bosnia and Herzegovina, and that Turkey was a country to which the corn from Bosnia and Herzegovina was mostly exported. The research in this paper can serve the purpose of further planning and development of both the production and the markets of this crop and agriculture as a whole.

In today's turbulent market conditions, the selection of suppliers in an agricultural enterprise constitutes a primary function, and the entire supply chain with the necessary raw materials and intermediate goods plays an important role in the day-to-day functioning of the economic entity in this field. In order to successfully solve the problem of choosing a supplier, the decision maker uses the methods of multi-criteria analysis, and the corresponding software support. The subject of research in this paper is the selection of mineral fertilizer suppliers in the agricultural enterprise using the AHP methodology, which is one of the most commonly applied methods of multi-criteria analysis today. The aim of the research is to rank suppliers on the basis of the set criteria, and a supplier with the highest rating was selected for the supplier of mineral fertilizer as the observed enterprise.

The aim of the paper is to point out the impact of the insurance contract on the safety of agricultural producers in the Republic of Srpska, based on the assumption that the insurance of crops, fruits and animals is a factor that implies elimination of harmful consequences in case of damage. This attitude of the authors is based on the fact that with the conclusion of an insurance contract in agriculture, the part of the responsibility is transferred to the state (by participation in the co-financing of the insurance premium), then to the insurance company (by claiming the damage from the insurance) and finally to the agricultural producers. Bearing in mind that insurance is very present in all segments of the modern society, which implies a great variety of forms of insurance, the authors of this paper start by presenting a general structure and classification of insurance, which also includes the insurance for agricultural purposes. In order to get a realistic picture of the current state of insurance in agriculture in the Republic of Srpska, an analysis of the legal regulation that regulates the mentioned issues was carried out. The authors also conducted a survey among agricultural producers to analyze the reasons why they have a negative interest for this segment of insurance and thus a small number of closed insurance policies with insurance companies. Based on these findings, this paper gives recommendations for the improvement of the situation and proposals for better solutions which would raise the safety of agricultural producers to a higher level.

Quality parameters and the possibility of successful placement of buckwheat-enriched wheat bread on the national market are presented in this paper. Analysis of the market position of buckwheat-enriched wheat bread includes demands, offer and competition. Elements that affect the overall retail price of buckwheat-enriched wheat bread are given in details, along with SWOT analysis and marketing plan including target market, market supply and product marketing mix. According to all performed analyses it could be concluded that this product should be positioned on the national market, especially for people with special needs and requirements.

INTRODUCTION Information on being diagnosed to have cancer is always shocking for the patient, and it always causes a lot of psychosocial problems during its treatment. In these moments, patients need understanding, support and someone who can help them to apprehend all available options and choices clearly. The purpose of this study is to show the psychological states of patients with breast cancer after breast surgery, the importance of the psychological support, and first experiences in psycho-oncological management of breast cancer patients. MATERIAL AND METHODS The study sample included 46 women, their average age being 52.32 (+/- 8.98), who had answered questions in a questionnaire in the period after surgery. RESULTS The patients experienced fears and worries associated with almost every part of cancer treatment likely to happen in the near future. The fear of chemotherapy and radiotherapy (67%), the horror of losing hair (59%) and the fear of relapse or disease progression (57%) were evident. Moreover, the patients dreaded the forthcoming pathological results and the decisions to be made by the Oncology Commission (57%), with accompanying insomnia caused by disturbing thoughts in 39% of the patients. CONCLUSION These findings suggest that psychological support is important in this early period after breast surgery due to the vulnerability of the patients, and because it can diminish the risk of potential escalation of distress.

The most often complication of breast surgery with dissection of axilla is decrease in the range of shoulder joint of the ipsilateral arm motion, the feeling of heavy arm, secondary lymphedema of the arm, and very rarely pain and weakness of the arm’s muscles. Persistence of these symptoms leads to permanent dysfunction of the arm . Decrease in the range of motion is a consequence of surgery and scarring of the healed wound, which decreases the amount of movement at each joint on the operated side 4, . A reduced range of shoulder joint motion is diagnosed in 2%–51% patients who underwent surgery for breast carcinoma 2, . Secondary lymphedema of the arm is a consequence of mechanical insufficiency of the lymphatic system caused by the surgery and later, by post-irradiation fibrotic changes, and is manifested by abnormal accumulation of interstitial fluid, rich in proteins . In the majority of studies, secondary lymphedema of the arm occurs in 10%–30% of patients following the breast carcinoma therapy . For postoperative complications reduction, numerous rehabilitation programs and instructions were developed with the aim of damage prevention, maximizing the occurred damage (range of motion, muscle power) and minimizing the risk for development of secondary lymphedema of the arm 1–4, . In breast carcinoma patients, rehabilitation has become more significant due to quality of life awareness of the oncological patients . It arises dilemma when to start with the rehabilitation program: most of the authors agree in that the program should start in the first several days after the surgery 1–4, , while the other authors consider that early beginning of rehabilitation in patients with axilla dissection is associated with an increased risk from postoperative complications: longer drainage period, seroma formation, postoperative infection and consequential longer hospitalization 1, 2, . In a controlled, randomized study, a hypothesis that exercises do not increase the risk of occurrence of secondary lymphedema of the arm has been confirmed . Exercises are efficient, safe and preferred interventions in a postoperative period . Early rehabilitation and later home-based exercises program, education 14, , as well as a continuous follow-up of patients 7, 9 were identified as interventions for the improvement of life in women with breast carcinoma in all 4 dimensions: physical, emotional, social and cognitive . Type, duration, frequency and intensity of exercises vary in the studies . Education and follow-up of patients with breast carcinoma enable prevention, detection of early and late occurrences of postoperative damages . A lack of rehabilitation interventions in patients operated for breast cancer is a consequence of no standardized exercises program avalable, so it is necessary to homogenize a reproducible regime .

A prospective randomized study encompassed 100 patients with asthma in the stage of acute bronchial obstruction, 7 to 17 years of age, of both sexes and with the similar rate of attack severity. The patients were spirometrically monitored (FVC, FEV1, PEF and FEF 25-75%) by a pediatrician-pulmonologist for 12 days. Fifty patients were subjected to conservative drug therapy, whereas other 50 patients additionally underwent the Su Jok therapy according to the 6-Ki principles, applying laser ray at the acupuncture points in the hand. After 12 days of treatment the group, in which both therapy methods were applied, reached the range of referent values for all investigated parameters. In the same period of time the group undergoing only conservative drug therapy retained values below the reference ones for the given age for 3 (FEV1, PEFR and FEF 25-75%) out of 5 investigated parameters. The obtained results differed from the group subjected to the combined therapy with the high rate of statistical significance. On the basis of the obtained results the efficacy of the 6-Ki technique of Su Jok therapy was confirmed as the therapeutic method supplementary to the conservative drug therapy in the treatment of acute bronchial obstruction in asthmatic children, provided that therapy is carried out in stationary conditions and under constant spirometric surveillance of the patient.

Introduction Fractures of lateral condyle represent 17% of all pediatric fractures of the distal humerus, and in current pediatric orthopedics there is still no agreement regarding optimal treatment modalities. We presented a treatment protocol for pediatric dislocated fractures of the lateral condyle of the humerus used at the Pediatric Surgery Clinic in Novi Sad. Material and methods Over the study period (1991-2000) a total of 48 patients with dislocated fractures of the lateral condyle of the humerus were hospitalized at the Pediatric Surgery Clinic. Orthopedic reduction and percutaneous pin fixation under radiological supervision was done in 15 patients, while 33 patients needed surgical reduction and pin fixation. Results Satisfactory results were obtained in 42 patients (91.3%), out of which 29 patients (63.1%) presented with excellent resuls. Good results were obtained in 8 patients (17.4%), and fair results in 5 patients (10.8%). Unsatisfactory results were present in 4 patients (8.7%). Two patients were lost to follow-up. Discussion Dislocation fractures of the lateral condyle represent high risk for development of complications. Adequate diagnosis and treatment represent basic conditions for successful post-interventional result. Orthopedic reduction with percutaneous pin fixation is recommended for fractures that may be anatomically reduced. In cases of unsatisfactory results of reduction, as well as in cases with completely dislocated and rotated fragments, surgical reduction and pin fixation is necessary. Conclusions Satisfactory results in 91.3% of cases, and long-term experience suggest that the recommended therapeutic option is adequate in treatment of dislocated fractures of the lateral condyle of the humerus in pediatric population.