The production and consumption of building materials have increased to leaps and bounds in the past few decades due to tremendous increase in population. As the production of building materials gets increased, generation of waste materials such as fibers, granules, ashes, effluents etc. also gets increased. Nowadays wastes of different types are being used effectively in concrete either partially and fully which helps in making of green concrete. Fiber reinforced concrete is a special type of concrete in which natural or synthetic fibers with different aspect ratios are used to eliminate or reduce crack formation and to improve various mechanical strength properties when mixed along with fly ash, silica fumes etc. in optimal dosages. In order to study the influence of waste on various strength properties of cement concrete, different dosages of cement are replaced with fly ash and also with coconut fiber or wollastonite fiber were added. The compressive strength, split tensile strength and flexural strength were experimentally evaluated and modulus of elasticity was empirically determined. Based on the test results, the concrete with 20% replacement of cement with fly ash and fiber revealed effective results when compared to concrete without fiber. Coconut fiber along with minimum dosages of fly ash has greatly improved the flexural strength on the other hand it reduces other mechanical properties at higher dosages. Combination of Wollastonite fiber with fly ash helps in the improvement of overall mechanical strength of cement concrete.

Doha, the capital city of the State of Qatar, has undergone rapid economic growth and urbanization over the past 20 years. In contrast with developed countries, where sustainable development has been implemented on a neighborhood scale, sustainable planning research has still been concentrated at the national level and less on the neighborhood level in the State of Qatar. Achieving the development of healthy cities without green and sustainable neighborhoods within them is challenging. The dynamism, livability and diversity of cities rely upon the cohesion of its neighborhoods as they make up the urban fabric from which enduring settlements are formed. Moreover, walkability and connectivity have been identified as two of the central aspects for enhancing neighborhood livability. However, the introduction of the car has transformed traditional pedestrianized street patterns into a car-dominant street network, with traditional walking Souqs replaced by destination-based strip-shopping. This study aims to examine the extent to which the heritage neighborhood site of the Souq Waqif in Doha is livable and what further implementations can be employed to increase its social sustainability (livability).

Distribution transformers, being the most common equipment in a distribution system, are of very great importance and must be properly cared for so that they can perform optimally at all times and last long. One of the major challenges distribution transformers have is the amount of losses in the transformer. These losses are load and no-load losses, of which load losses constitute the most under full and medium capacity operations. Several methods have been proposed in the fight to improve the handling capacity of distribution transformers and reduce the load losses in the transformer. In this study, an analysis is carried out on the effects of linear and non-linear loads on an 11/0.415kV, 200kVA, three phase, two winding oil coiled distribution transformers and three of the methods of loss compensation. These system is modelled and simulated using Matlab Simulink 2015a. The simulation results are collected and using Microsoft Excel, graphs are used to compere the results from the different simulations.

Shisha/ Waterpipe smoking has become a global epidemic, especially among youth. Health effects of WTS have not been studied extensively like the cigarette smoking. There is a dire need to study and document health effects of water pipe smoking in general and specifically on the oral cavity. 100 subjects under each category were studied: Exclusively Shisha smokers, Exclusively Cigarette smokers, Cigarette and shisha smokers and non-smokers. Along with the Arab population, Indian populations residing in UAE were also studied. After a brief explanation of the study, and obtaining a written consent signed from the study participants, a questionnaire was administered to collect data. A detailed case history was taken. Oral examination included soft tissue and hard tissue examination. Simplified oral hygiene was calculated. Respiratory problems and Sleep disturbance were mainly reported among shisha subjects. Moderate to mild stains and calculus along with periodontitis was recorded. Complains of bad breath and dry mouth was reported. One case of mixed white and red patches was noted in shisha smoker. The finding of our study could be substantial evidence that WTS alone has the potential to cause deleterious oral health effects and could even lead to pre-malignant lesions.

This study aims to analyze the differences before and after the formation of waste banks in students, while the long-term goal is reporting and business strategy of Waste Bank at school (including a simple model of financial statement). The method used in this study is method of comparison with different test. The assessment of student performance between before and after the established of waste bank there is significant difference in the assessment of student performance at elementary school.

The study aimed to examine value chain of sesame varieties in some areas of Bangladesh. The specific objectives were i) to estimate the cost and return of Binatil-1and Binatil-2, ii) To identify the value chain of Binatil-1 and Binatil-2 iii) To determine the constraints of Binatil-1 and Binatil-2 cultivation; and iv) to suggest recommendations for policy guidelines. Both primary and secondary data were used for this study. Descriptive statistics analysis using average, percentage, ratio, etc. and value chain analysis were done in this study. The average cost of production of Binatil is BDT. 30341.08 per hectare and yield is 1.23 t ha-1; which indicates to a production cost of BDT 24.81/kg. The average human labour cost was BDT 19803.83 per hectare; fertilizer cost was BDT. 3990.84 and land preparation cost was BDT 3164.84 per hectare. The cost of human labour, fertilizer and land preparation are the major cost items of Binatil production. The average price for Binatil 1& Binatil 2 was BDT 38 and net return was BDT 16306.42. In case of Binatil-1, producer share was 65 percent for value chain-I and 55 percent for value chain-II and it was 63 and 56 percent respectively for Binatil-2.

This paper assesses the comparative study of the role of tax audit and tax investigations in developed and developing countries (emphasis on Nigeria and United Kingdom). The two research questions that guided the research include; to what extent does effective tax audit and investigation curb incidents of tax evasion in developed countries?; to what extent does effective tax audit and investigation in developed countries enhance their tax revenue generation?. For developing countries, Nigeria as a case study, the methodology employed for data collection is only primary source, which involved the use of questionnaires, in which 48 questionnaire were administered to the members of staff Port Harcourt branch of Federal Inland Revenue Services (FIRS) and all the questionnaire were returned. Conversely, for developed countries, a critical look was given to published journals and some published information on databases that have confirmed that tax evasion occurs less often in UK owing to effective tax audit and investigation. Such journals have equally confirmed that one of the reasons for increase in revenue derivable from tax is as a result of effective tax audit and investigation as well as reliable tax laws. A Simple random sampling technique was adopted in distributing 48 copies of questionnaire, which were returned. Presentation and analysis of primary and secondary data collected with questionnaire were done using table, charts and simple percentages. It was established that effective and efficient tax and investigation has not been optimally put in place in developing countries hence the rampant incidents of tax evasion and low revenue generated through tax administration systems in such countries. On the other hand, in developed countries such as UK, tax audit and investigation is effective and efficient and for that reason, higher revenue is generated and less incidents of tax evasion. The study therefore concludes that for increased revenue generation and prevention of tax evasion, reliable, efficient and effective tax audit and investigation should be put in place in both developing and developed economies. It is the recommendation of the study that developing countries urgently embrace functional audit and investigation exercises to increase their revenue base through taxation and prevent uncontrollable loss of revenue through tax evasion while developed countries should maintain and strengthen their tax audit and investigation activities for a sustained optimal performance.

History as a master of the past; a commander of the present and subtle compass of the future is continuously bulging in length and breadth as new facts, intelligible methods of construction and auxiliary tools are discovered and used by professional historians to refocus emerging themes and concepts. With these new discoveries, the historical enterprise is expanding rapidly with a deal of both concord and disagreements arising from the analyses of commonly investigated historical facts. The ability of modern history to float freely and fittingly within the world of science and that of arts; further polished by its dynamism to use the other disciplines of the social science family to assert its causation and unique kinds of Historical truth, places the course on a complex paradigm. On a broad plain, European and western historians have fought hard to minimized disagreements on their historiography but African history and historiography is still bedevilled by the scourge of bias, misinterpretation and ignorance. The Republic of Cameroon at any point in time is a fine fitting to showcase the re-investigation of the past, understanding the present and casting the future. Going by colonial history, Cameroon shares a triple experience (German, British and French).By geography, her coastline gave her wider exposure to the Atlantic slave and legitimate trades and her geographical position permitted her to be influenced by historical developments in both west and central Africa.This paper from its various sources refocuses and interrogates the emerging debates and contrasting themes like colonial misgivings, self-centeredness of early nationalists and irresponsible leadership blamed for current multifaceted problems of Cameroon historiography today. It argues that the actors behind these themes and episodes can only be better appreciated and comprehended in the light of the prevailing circumstances at the time. Such a scholarship enterprise will create a sense of positive approach to Cameroon historiography thereby, giving us a command of the present trend of issues and casting an assuring future. It further perceives the diverse Cameroon historical heritage and the harm done to it by Eurocentric writings, not as vices but as potent episodes that reminds us of our foundational frames pointedly awful but worth being used to stimulate development and hope instead of remaining steadfast in the apportioning of blames in an era of abounding opportunities.

Abstract: This study aims at examining the dietary intake status of adolescent swimmers. It also compares nutrient intake against the recommended dietary allowances and its associated implications on athlete’s health. A total of 65 subjects aged between 11 to 18 years was purposively selected; 35 swimmers and 30 non-swimmers. A structured Food Frequency Questionnaire was used to collect data. Correlations between continuous variables, association between BMI of swimmers and non-swimmers were calculated using ANOVA. The χ² test was used to compare the nutrient intake with the RDA of control and experimental group. Swimmers were taller, heavier and had higher waist hip ratio to a non-swimmers. The experimental and control groups reported a significant BMI and MAC. Females in two groups consumed meat protein than their male counterparts despite that the groups had many non-vegans. Although not statistically significant, men's consumption of food stuffs was higher than women; with χ² reflecting 3.4897 and 6.4371 respectively at 5%. Comparing MAR and NAR from swimmers and non-swimmers, nutritional intake in both swimmers and swimmers were seen to be inadequate in calcium (93%; 97%), riboflavin (91.7%; 92.6%), zinc (71%; 78.5%), and absorbic acid (94.2%; 95.7%) whereas intake of iron (0.4%; 1.1%) and protein (8.3%; 12.2%) was found adequate except for few swimmers. The means for groups were 0.71 and 0.75 respectively indicating that one or more nutrients were lower than the RDA. Despite that most energy intakes from the subjects were higher than RDA, mean of male and female swimmers on total fibre and fat were below the recommended daily allowances though significantly statistical at 5% level as 2.2645 and 2.1732 respectively. Adolescents showed that they were not consuming less water compared to other drinks of water even after training sessions. A healthy diet throughout is important to provide nutrients that support optimal physical growth and cognitive development.

The Calcifying Odontogenic Cyst (COC) represents a heterogeneous group of lesions that exhibits a variety of clinicopathologic and behavioural features. Therefore a proper categorization of the cases is needed for better understanding of each variant. Ameloblastoma is one of the well-known odontogenic tumours that could be associated with Calcifying Odontogenic Cyst. Very few cases of Ameloblastomatous calcifying odontogenic cyst have been reported in the literature. In this report we present a case of ameloblastomatous transformation of calcifying odndontogenic cyst.

This review assesses the impact of waterlogging and submergence on crop physiology and growth of important crops in Bangladesh along with its remedial measures. Waterlogging can take place because of heavy rainfall, inadequate drainage systems, natural flooding etc. Oxygen levels diminish very rapidly in waterlogged root environment. So, damage of crops depends on duration and severity of flooding. The oxygen deficient conditions hamper plant growth, development and survival based on their tolerance to excess water. Under such environment plants exhibit metabolic switch from aerobic respiration to anaerobic fermentation, resulting in reduced rate of energy production by 65-97%. Anaerobic roots may also die from self-poisoning byproducts of anaerobic metabolism. The flooding also impedes the diffusive escape and/or oxidative breakdown of gases such as ethylene or carbon dioxide resulting in its accumulations. The accumulated ethylene may slow root extension, while carbon dioxide can severely damage roots of certain species. Moreover, waterlogged plants often face the oxidative damage induced by the generation of reactive oxygen species. However, all the plants have the ability to detoxify the adverse effects of reactive oxygen species (ROS) by producing different types of antioxidants such as ascorbate peroxidase (APX), superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), glutathione reductase (GR), ascorbic acid, glutathione, tocopherols and carotenoids. Prolonged exposure of plants to flooding conditions could result in root injuries which in turn restrict photosynthetic capacity by inducing certain alterations in biochemical reactions of photosynthesis. Waterlogging is also known to induce adverse effects on several physiological and biochemical processes of plants by creating deficiency of essential nutrients like nitrogen, magnesium, potassium, calcium. Species with inherently surface-inhabiting root systems are notably tolerant of prolonged waterlogging. There are several options for mitigation of submergence and waterlogging problems like breeding of waterlogging tolerant varieties, improvement of drainage systems and changing in crop husbandry. Providing adequate drainage, foliar spraying of fertilizers and hormones can alleviate waterlogging problems. Bed planting in waterlogged prone areas and floating beds in flooded areas are good options for high value crops.

This research work is shows the variability of solar parameters. The parameters that are solar radiation, sun intensity and temperature were optimized and predicted in other to investigate its influence in Permanent site of Federal Polytechnic, Oko, Anambra State, South Eastern part of Nigeria. The research was conducted for the period of five days, 6:00am to 6:00pm daily on 6th to 10th December, 2017. Measuring the intensity of solar radiation is one of the directions used at investigation of solar power and necessary for the implementation of photovoltaic systems in a particular geographical 'area. Instrument used for measuring the solar radiation is solarimeter which is based on the thermal or photovoltaic principles. The device harness two main components for measuring solar radiation, namely- direct radiation and diffuse radiation, with sensors based on the photovoltaic principles. The research tends to optimize and to develop the intended sun intensity and solar radiation principles and properties of the environs. From the optimization results, the maximum sun intensity of the geographical area is 957.620 w/m2 while the minimum sun intensity of the area is 2 w/m2. However, the maximum temperature of the geographical area is 39.4˚С while the minimum temperature of the geographical area is 18.8˚С. The average sun intensity of the case study is 356.644w/m2. The optimization technic employed will ensure the efficiency of solar radiation, sun intensity and temperature variability of the geographical area in study as a key to climatic issues and solar systems manufacturing.

This study aims to examine and analyze the influence of competence, motivation, and facilities of education advice on the performance of teachers XYZ Senior High School Jakarta. The population of all teachers of XYZ Senior High School Jakarta is 50 teachers. The research method used is a quantitative approach and explanatory with survey method. Data were collected using questionnaires given to 50 respondents; with sampling technique used is census. Methods of research analysis used multiple linear regressions. Data processing used software program Statistical Product and Service Solution (SPSS) version 20. The results showed competence, motivation, and infrastructure facilities have a significantly positive effect on teacher performance. The influence of competence, motivation, facilities, and infrastructures shows positive influence to teacher performance. Competence is the greatest variable of influence on teacher performance. The three independent variables namely competence, motivation and means facilities education have a positive and significant effect on teacher performance in XYZ Senior High School Jakarta.

The present investigation was conducted to evaluate antimicrobial and analgesic activities of ethanol extract from Solanum torvum (Family: Solanaceae) aerial parts. The bioactive compounds such as glycoside, tannins, sterols, saponins, flavonoids, carbohydrates and proteins are detected in ethanol extract shown promising antibacterial activity against gram positive bacteria viz. B. subtilis and S. aureus. Analgesic activity was evaluated against both thermal and chemical induced stimuli, which were evidenced from acetic acid induced writhing, tail immersion and formalin induced paw licking test. The assessment of peripheral analgesic effect of the ethanol extracts exhibited a significant percentage inhibition in the writhings which were induced by acetic acid in mice. Similarly test drug significantly increased the latency period in the tail immersion test and the formalin study showed that both the aphasic and tonic pain was blocked by the extract. The overall analgesic effect of ethanol extract (200 and 400 mg/kg body weight, p.o.) was lower than the standard drugs aspirin. The presence of flavonoid compounds in ethanol extract of Solanum torvum aerial parts may be responsible for the analgesic effect

Dengue and chikungunya are two mosquito-borne viral ailments transmitted by the same species of mosquito, Aedes aegypti and these ailments are of great public health concern in country like India. Thus, the present study was aimed to check the influence of antagonistic crustaceans on population of Aedes mosquitoes. Based on our laboratory experiments, the best ratio of antagonistic crustaceans (Cyclopoid copepod, Mesocyclops aspericornis and cladoceran, Daphnia magna) was chosen against Aedes aegypti larvae to test the influence of these crustaceans under simulated conditions. During the study it was observed that overall time taken for the larvae to convert into adult was 14.82±2.65 ranging from 14.0-21.0 days i.e. 4 days longer than the control sets. L1 larval stage was more prone to mortality i.e. 42.35±0.69 than other larval stages. Total adult emergence was significantly reduced i.e. 52.30±1.57 (31.65±0.69 males and 20.65±0.88 females). Significant reduction in body size of both male and female was observed i.e. 3.79±0.16 mm (control 4.44±0.07 mm) and female size significantly reduced to 4.17±0.15 mm when compared with control sets i.e. 5.48±0.08 mm. Life span of males was reduced from 15.35±1.20 to 9.33±0.33 days and in case of females longevity was reduced from 22.00±1.15 to 11.67±0.66 days.