http://ijaems.com/ Open Access international Journal to publish research paper en-us February 2019 Nitrogen is the most important feed source for plants an essential element for plant growth and development (LiuCW et al.- 2014) because the cells are made of nitrogen. It is seen enhance in plant growth in the absence of nitrogen. Therefore, the most important nutrient source of the plant is nitrogen containing fertilizers. Fertilizers are divided into two main parts; organic fertilizers and chemical fertilizers. Organic fertilizers are healthier than chemical fertilizer because it does not conclude chemical substance. All cells are eminent from protein and many of amino acids carry out protein sequence. And amino acids has nitrogen (N) element In general, the nitrogen element is derived from amino acids in organic fertilizer sources from animal waste or vinasse. Nitrogen analysis is the most healthy method to determine with Kjeldahl instrument. The Kjeldahldevice is a nitrogen meter that determines the amount of nitrogen in the fertilizer. The nitrogen content of the Kjeldahlapparatus was determined by the amount of amino acids contained in the extract. Amino acids used as commercial fertilizers are amino acids used in the L- conformation in optical conditions, which are generally produced in laboratory conditions. Lysine is the main one. http://ijaems.com/detail/determination-of-nitrogen-quantities-in-the-aminoacid-fertilizer-with-kjeldahl-device/ Elif Esra ALTUNER, Yener TEKELİ http://ijaems.com/upload_images/issue_files/1-IJAEMS-JAN-2019-18-Determinationof.pdf Traditional pond technology depends on nature in management, such as filling and disposal of pond water utilizing the time of low and high tides. The food for traditional pond technology comes from nature. The availability of nutrients such as N and P greatly determines the productivity of pond. The study was aimed to determine the fluctuations of N and P elements in traditional pond areas at tides. This research was conducted with purposive sampling method and laboratory analysis for several water parameters. The results showed that pH ranged from 7 to 8 both at low tide and high tide. The average value of nitrate (NO3) from five locations was extended from 0.106 to 1.495 mg/l. The value of silica (Si) ranged from 5,287 to 10,876 mg/l in low tide. Orthophosphate at low tide ranged from 0.027 to 0.090 mg/l, the highest value was in the coast station and the lowest was in the sea station. Whereas the value of nitrate (NO3) and orthophosphate in high tide ranged from 0.830 to 1.495 mg/l and 0.039 to 0.090 mg/l. Nutrients were abundant enough to support the growth and development of primary producers. So, the waters in this region include fertile waters. http://ijaems.com/detail/fluctuation-of-no3-n-and-po4-elements-in-the-traditional-pond-area-at-tides/ Abdul Malik, Kadarwan Soewardi, Ridwan Affandi, Sigid Hariyadi, Majariana Krisanti http://ijaems.com/upload_images/issue_files/2-IJAEMS-FEB-2019-2-Fluctuationof.pdf This paper determined the effectiveness of the two media of instruction, English and Filipino, in selected topics in Biology using quasi-experimental research. Two sections of Grade 8 students were the respondents of this study. The researchers found that the difference in scores of the two groups was statistically significant. Students who were subjected to English as a medium of instruction recorded a significantly higher posttest score than those students who were taught using Filipino. Thus, English as a medium of instruction is more effective in teaching selected topics in Biology. http://ijaems.com/detail/the-use-of-two-media-of-instruction-in-biology-a-quasi-experimental-study/ Jomell M. Santiago, Eden S. David http://ijaems.com/upload_images/issue_files/3-IJAEMS-FEB-2019-5-TheUseofTwo.pdf The objective of this study is to evaluate the volatility of sharia-compliant companies that listed on Malaysia Stock Exchange. Data of return for each of the companies are collected from Thomson Reuters Datastream. The number of selected companies is 19 that selected from 30 companies composing Kuala Lumpur Composite Index (KLCI). This study calculated average monthly return and volatility rate for each of the companies. Next, normality statistical test is performed using Shapiro-Wilk normality test. Result indicates the mean value of average monthly return is 0.442 % with standard deviation 1.28%. Then, the mean value for volatility rate is 4.85% and standard deviation is 2.23%. Result from Shapiro-Wilk normality test indicates data distribution for average monthly return and volatility follow normal data distribution. The significant of these findings is it will help investors to understand the behavior of stock price in Malaysia Stock Exchange particularly sharia-compliant companies in Kuala Lumpur Composite Index. In addition, the findings of this study will help investors to develop investment portfolio that can maximize return and reducing loss. http://ijaems.com/detail/volatility-diagnostics-for-stock-price-of-sharia-compliant-companies-listed-in-malaysia-composite-index/ Nashirah Abu Bakar, Sofian Rosbi http://ijaems.com/upload_images/issue_files/4-IJAEMS-FEB-2019-4-VolatilityDiagnostics.pdf Climate variables have shown that monthly mean temperature (MT) and monthly rainfall (MR) are non-stationary in the Tuscan Apennine Alps during the 20th century; similarity between trends in monthly climate variables varies irregularly through time at the seasonal and monthly scales, and site. High variability and anomalies in silver fir (Abies alba Mill.) growth have been observed in various regions of Europe and Italy. This scenario has suggested to investigate if tree-ring chronologies in silver fir vary among sites during the 20th century in the Tuscan Apennine Alps, if there are differences in tree-ring growth at upper and lower elevation within silver fir forests, and if there are anomalous or unexpected growth patterns in tree-ring chronologies of silver fir. Results shows that similarity in Residual Tree-rings series (RTRs) varies highly, frequently, and irregularly during the 20th century among sites and, to a lesser extent, within silver fir forest sites in the Tuscan Apennine Alps. Unexpected patterns of growth occur in silver fir in the last decades of the 20th century; and similarity between RTRs of the silver fir study stands tends to reduce with increasing distance among sites. Results recommend monitoring and extend this and similar investigations in the view of the climate change scenarios recently provided by research where the impacts on the viability and possibly shift of silver fir populations – and other species - in their southern European range rise serious concerns. http://ijaems.com/detail/variability-in-silver-fir-growth-in-the-tuscan-apennine-alps-in-the-20th-century/ Fabrizio D’Aprile http://ijaems.com/upload_images/issue_files/5-IJAEMS-FEB-2019-7-Variabilityin.pdf The study aimed to identify the manufacturing companies’ risk management practices towards climate change. Towards this goal, the study investigated firstly the areas of business affected by climate change and secondly, the effectiveness of their climate change risk management practices. The study looked into the significant difference on how the respondents assess the effects of climate change on their business as well as the effectiveness of climate risk management practices when compared according to their profile variables. Descriptive survey method was employed in the conduct of the study. A validated questionnaire was used to gather the needed data among 174 manufacturing companies in Batangas Province. The data were analysed with the use of frequency count, percentage and weighted mean, as well as analysis of variance (ANOVA) for the significant difference of the means. It was found that climate change has a moderate effect in the areas of production and operation, finance and accounting, and marketing. Among the areas of climate change risk management practices, only those that involve managing the risks were regarded as effective, while the rest were considered moderately effective. It is suggested that the manufacturing companies create sustainable partnerships among other companies that have successfully implemented climate change risk management initiatives to minimize the impacts brought about by the climate change. http://ijaems.com/detail/extent-of-effects-and-practices-on-climate-risk-management-of-manufacturing-firms-in-the-province-of-batangas/ Robert S. Dipasupil http://ijaems.com/upload_images/issue_files/6-IJAEMS-FEB-2019-3-ExtentofEffects.pdf This project mainly deals with the replacement of cement with Bagasse ash in fixed proportions. Bagasse ash partially replaced in the ratio of 0%, 5%, 10%, 15% and 20%by weight of cement in four different experiment to find out maximum compressive strength and tensile strength compare it with the strength of normal concrete by using grade M-20 at 7days and 28 days. The test result indicate that the strength of concrete increase up to 20% Sugar cane bagasse ash replacement with cement. http://ijaems.com/detail/experimental-study-on-partial-replacement-of-sugarcane-bagasse-ash-in-cement/ Chandru.G, Vignesh.V, Dr. Saravanan.R http://ijaems.com/upload_images/issue_files/7-IJAEMS-FEB-2019-9-ExperimentalStudy.pdf One of the emerging trends in marketing is the usage of social media as a marketing tool due to its efficacy. The motivations of marketers who use social media marketing were investigated in this study. Additionally, this study discussed the precise actions taken by marketers who use social media marketing and their reasons for doing so. It also described the policies and experiences of marketers in the field of social media marketing. A quantitative descriptive method was used in this study. This study was able to show how social media marketing works that determines the marketer – respondents ‘ motives to use, specific actions, opinions for adopting, policies, and experiences. The main purpose of marketers is to bring awareness about their business and, eventually, can attract customers. Through social media marketing, their companies can advertise that includes their updated offers and discounts. However, they have experienced lack of expert in the field to help them for technical assistance and cannot outsource their activities in social media marketing. Thus, this resulted to its advantages and disadvantages. http://ijaems.com/detail/social-media-marketing-of-ready-to-wear-rtw-marketing-officers-in-the-philippines/ KIM EDWARD S. SANTOS http://ijaems.com/upload_images/issue_files/8-IJAEMS-10120225-SocialMedia.pdf