Modern people have embraced plants as a source of useful bioactive compounds. As such, plants with medicinal properties have become essential components in human life. The purpose of this study was to investigate the phytochemical profile of the extract of Dioscorea steriscus tubers obtained from Zimbabwe. Phytochemicals were extracted from tubers of D. steriscus using aqueous acetone. UV-Visible Spectrophotometry, Fourier transform infrared (FTIR) spectrometry and highperformance liquid chromatography (HPLC) techniques were used to determine the phytochemical profile of the tuber extract. The yield of phytochemicals extracted from D. steriscus tubers was found to be 6.38 %. The presence of bioactive compounds possessing phenyl, organic hydroxyl, amine, carboxyl, carbonyl, acyl, alkyl and aromatic functional groups was confirmed using UVVisible and FTIR analysis. The presence of substantial amounts of vanillic acid and kaempferol in D. steriscus tubers was confirmed using HPLC analysis. In support of the ethnobotanical values of Dioscorea species, the study confirmed the presence of potent phytochemicals in the extract of D. steriscus tubers obtained from Zimbabwe.

Education must be obtained and guaranteed by the government with quality and equitable services in all regions in Indonesia. Geographic information systems become one of the solutions that can help the process of equitable education and help the government take appropriate actions. This study discusses how the development of a website-based geographic information system that can be used to map the distribution of educational data in the city of Bandung using the Rational Unified Process (RUP) and Unified Modeling Language (UML) methods for system modeling. The process of making maps in this study uses Quantum GIS (QGIS) software with database storage using PostgreSQL. The output target of this study is in the form of a geographic information system website mapping educational data distribution in the city of Bandung. This website is created as a graphic summary dashboard based on the spatial field of education so that the public and government can easily draw conclusions about the distribution of existing education such as knowing the balance of the number of schools, teachers and students in an area that can affect the quality of teaching and learning activities in schools and the quality of education in that area.

Rad se oslanja na Bowlby-jevu teoriju afektivnog vezivanja, u skladu sa pretpostavkom da kvalitet afektivne vezanosti u detinjstvu predviđa kasnije psihološko funkcionisanje osobe, te da samoubistvo, kao autodestruktivni čin, može biti posledica nesigurne vezanosti. Cilj ovog rada bio je utvrditi da li se pacijenti, koji su ispoljili suicidalno ponašanje, češće svrstavaju u neki od nesigurnih obrazaca vezanosti, u odnosu na zdrave ispitanike bez suicidalnih tendencija. Istraživanje je provedeno u Specijalnoj bolnici za psihijatriju u Sokocu, a uzorak je činilo 80 ispitanika muškog pola, svrstanih u dve grupe: grupu suicidalnih pacijenata (N1=40) i grupu zdravih, nesuicidalnih ispitanika (N=40). Kratkim, strukturiranim upitnikom napravljenim za potrebe ovog istraživanja, prikupljeni su podaci o subjektivnom doživljaju majke i oca. Ispitivanje porodične afektivne vezanosti provedeno je modifikovanim Brennanovim upitnikom, za procenjivanje porodične afektivne vezanosti (Stefanović-Stanojević, 2005). Za testiranje razlika između grupa korišćen je χ² test. Rezultati pokazuju da postoji statistički značajna razlika između ispitivanih grupa i to tako, da su se ispitanici iz grupe suicidalnih, značajno češće svrstavali u nesigurno-okupirani i nesigurno-plašljivi obrazac vezivanja (χ²(3)=23,928; p=0,000) i češće su odrastali uz prezaštićujuću, agresivnu ili majku sa psihičkim problemima (2(3)=28,976; p=0,000), dok razlike u odnosu na doživljaj oca nemaju statističku značajnost (2(2)=3,436; p=0,179).

The research was carried out from April to July 2019, in Republika of Srpska. The sample was suitable. It was made up of
294 respondents aged between 15 and 73. The average age of the respondents was 22,92 years. Male respondents numbered 120 or 40,82%, and females 174 or 59.18%. Independent variables are gender and age. The dependent variable is the level of the cognitive component of the social attitude. Milosavljevic's Skala PARADOKHIP & BM-2006-02-26 was used to examine the levels of cognitive component of the social attitude. The aim of the research was to verify the hypothesis about the paradoxical Relationship of cognition and non-cognition in the cognitive component of the social attitude, according to which a greater scope of the cognitive component of the social attitude corresponds to an even greater extent of the experience of non-cognition (not-knowing) and vice versa. It has been confirmed that the greater scope of cognition in the cognitive component of the social attitude corresponds to an even greater extent of the experience of noncognition, regardless of the gender of the respondents. With the aging, there is also a growing awareness that a greater scope of cognition in the cognitive component of the social attitude corresponds to an even greater extent of the experience of noncognition, and the existence of statistical significance (p<.05) has been confirmed between the categories of subjects aged 15- 18 and 24-73.

Simulation in the production process represents the implementation of processes in real-time and space. Current trends are heading towards the implementation and expansion of various types of automated delivery systems in many industrial enterprises. These efforts are supported by requirements to increase reliability, reduce operating costs and time as well as meet operational schedules. The present article pays attention to the use of simulations, which are supporting tools in ensuring the operation of the production process, focusing on the evaluation and planning of the material flow. The first part of the paper presents a theoretical description of problems in the area of application of simulation tools in the production process with a subsequent focus on material flow analysis. The core of the paper presents a description of the analysis of approaches to material flow assessment, using supportive simulation tools in line with the ideas of business digitization. At the end of the article, the overall evaluation and summary of the issue are described.

Heavy metals are considered to be one of the major contaminants of water in recent years due to their non-biodegradable property; hence making them toxic and bioaccumulate to living organisms. Conventional methods such us chemical precipitation, physical treatment through ion exchange are used for removing heavy metal ions from water. These methods are expensive and attributed to incomplete metals removal and high cost of treatment. In recent years, researchers have found alternative low cost and effective method for removal of toxic metals through biosorption process using biological materials. Moringa oleifera seeds is one of the biological materials which has effective adsorption capacity for removal of heavy metals from water and wastewater. In this article, the seeds of Moringa oleifera seeds as a low-cost biosorbent for removal of heavy metals is presented. Moringa oleifera seeds is inexpensive material that contains amino acids. The amino acid is a major constituent of the functional groups that aids in greater ability of heavy metals removal through metal ion exchange or complexation, which is mainly affected by pH, biosorbent dosage, and contact time. Moringa oleifera seeds residues have a greater capacity to absorb heavy metals in a single solution compared to multi ion solution.

Even though pesticides constitute a very essential component of improved and modern agriculture, the abuse of pesticides has brought substantial poisoning worldwide, especially in developing countries. This review investigates the possible sources by which people are exposed to pesticides worldwide and the impact on their livelihood. The group who often are exposed to these chemicals includes, farm workers, children, farmers, and family members who have direct link to the pesticide application sites as well as persons who are exposed to these pesticides through the domestic use of waterbodies and consumption of foodstuff or crops sprayed with these pesticides. Central to this review is the critical discussions of the different scientific research findings on health effects and risks related to pesticides usage. Again, organophosphates and organochlorines pesticides are found in most of the pesticide contaminated sites and can remain in soil and waterbodies for a longtime. This work has also provided cases of incidence of carcinogenicity in humans, as a result of pesticides use. We concluded that, breeding or developing insect tolerant or resistant crops may curb the profuse use of pesticides in agriculture.

The problems of forest and land fires continue to overshadow in Riau Province and Pelalawan District including the contributors of fire spots of forest and land fires. The handling and control of forest and land fires run during this time tend to be incidental and focus on the aspect of fire suppression only. The extinguishing and controlling of forest and land fires fire has been undertaken by several agencies in the local government organization of Pelalawan District. While the relationship between the agencies is more information share and informational relationship and the deployment of resource assistance is limited to the capacity of each organization during the occurrence of forest and land fires only, not led to a collaborative multi-disciplinary working approach (inter-organizational collaborative network) in the area of local government. This research aims to Described the management situation of forest and land fires that took place in Pelalawan District, conducting analysis and academic studies on the practice of Network Inter-Organization by controlling forest and land fires (Karhutla) in Pelalawan District, and formulating model Inter-organizational network-based organizations that can be applied to regional government of Pelalawan District in every bureaucracy organizations. The study used a qualitative descriptive approach with reference to literature studies and interview reluct collection by (Agranoff i McGuire, 2003).

The goal of this research is to determine possibility of investing individual personal financial assets in investments funds in Republic of Srpska and does households have financial assets that can be invested. In this research capital market of Republic of Srpska is represented, the structure and organization of Banja Luka Stock Exchange, and legal framework for investment fund management companies. The volume of activity in investment funds is shown in presentation of activity Banja Luka Stock Exchange, following with the assumed reasons of current status.

Marketing in tourism is a systematic adjustment of tourism company policy and political policy at the local, regional, national and international levels in order to meet the needs of tourists and make a profit. The purpose of the paper is to explain how direct marketing, especially as part of a marketing mix, can help facilitate the exchange process in the international and domestic tourism markets. The aim of studying marketing in tourism is to make this concept available in this activity in theoretical, methodological and application terms. Marketing in the tourism industry is in a phase of maturity and is becoming sophisticated, which leads to the fact that the entire industry increasingly accepts the basic principles of marketing: The concept of marketing; Marketing orientation; Meeting the wishes and needs of consumers; Market segmentation; Value ; Product life cycle and Marketing mix (the principle on which the essence of the work is based). Direct marketing activities are based on databases and interactive communication media. Databases enable the selection of the target market (customer), which is acted upon by selecting the appropriate advertising/sales medium. The most famous media of direct marketing are certainly catalogs, direct mail and telephone (telemarketing), while in practice many others are used such as: television, radio, Internet, mobile phones, print, inserts.