Assessment of synthetic pyrethroids pesticides residues in cocoa beans from Ghana
One group of pesticides that play an important role after the ban of the persistent organochlorine pesticides in agriculture is synthetic pyrethroids pesticide. Synthetic pyrethroids mimic the broad efficacy of the botanical, but they contain only one of the six groups of esters of the natural pyrethrums, and insect species tend to develop resistance to them. However, the latest groups of synthetic pyrethroids are photo-stable, as well as extremely toxic to insects. The objective of this study is to determine residue levels of selected synthetic pyrethroids pesticides in cocoa beans produced in Ghana, and to assess these levels against the European Union and Japanese residue regulation limits. The determination was done by gas chromatography coupled with an electron capture detector, and confirmed with Saturn 2200 Mass Spectrometer using ion trap mass analyzer. The study revealed the presence of all nine selected synthetic pyrethroids pesticides at significantly varying concentrations, with Permethrin recording the widest range of residue concentration from not detected to 105.0 micrograms per kilogram. The percentage recovery for most of the pesticides ranges from 75 to 120 percent, with method determination limit of 5.0 micrograms per kilogram. None of the detected synthetic pyrethroids pesticides’ average residue concentrations did exceed the European Union or Japanese Maximum Residue Limits in cocoa beans produced in Ghana. However, Allethrin, Cypermethrin and Fenvalerate average residues concentrations were at the borderline of the Japanese MRLs.
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Availability- An Ultimate Goal of Reliability Engineering
This paper discusses the ways for maintaining high availability of a system in order to keep high reliability figure. In doing so, the basic principles of reliability are discussed. Since good maintenance practice enhances availability, some important topics on maintenance management are also discussed. At the end recommendations are made on how to keep a system in a high availability state.
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Bulbophyllum tremulum Wight (Orchidaceae): a new report for Eastern Ghats
An orchid Bulbophyllum tremulum Wight has been collected from Sirumalai hills of Southern Eastern Ghats of Tamil Nadu for the first time. This species was earlier known to occur only in Western Ghats. Hence, the present collection of this species is being reported here as a new record for Eastern Ghats.
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Career development: An imperative determinant of job performance in university libraries.
The study conducted on the effect of career development on job performance in University libraries reveals that there are no clear processes for career development in various institutions of higher learning and where it exist, it’s often focused only on key faculties. The study was conducted in six academic libraries in Nigeria. Questionnaire was the instrument used to gather data from professional librarians who were the respondents. Statistics for Social Sciences Package (SPSS) was used to analyze the data obtained from the 94 professional librarians examined. Findings from the study reveals that paying attention to career development of individuals will be vital not only for skills development but also to help establish an enhanced performance at work by giving librarians a clearer sense of direction and purpose. The study thus concluded that the core reason for giving essential consideration to career development issues is to create an enduring job performance and effective service delivery in institutional libraries.
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Case studies on construction defects on different types of walling system for building
This paper will focus on construction defects analysis on different types of walling system for building. There are various types of construction building defects on the main structure of building. This study is conducted based on 3 buildings located at Universiti Sains Malaysia. The chosen buildings are Hamzah Sendut 3 Library, Aman Damai Hostel and Restu Hostel. Observation and monitoring the defects at the buildings are the methodologies used in this study. Information is recorded and supported by photographic and digital documentation. Furthermore, the interview with those expert and professional in this field will be another critical element of this study. Lastly, the analysis will be done according to the data collected through observation and monitoring, and interview. Based on the obtained information, there are three types of building defects took place which are crack, dampness and paint peeling. These defects are not dangerous as they do not affect the structure of the building and there is no symptom which shows that the building is going to collapse. This research provides the solution for the building defect of the existing building.
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Cattle Urine technology to maximize maize plant biomass yield; applicable to small holder farmers by evaluating the biomass yield and palatability of harvested maize fodder using dairy cows at Gondar, North West Ethiopia
The trail was conducted from March 11- 17 May 2014 in the University of Gondar forage development garden. Water diluted Cattle Urine technology was examined for the current livestock rise vs feed shortage particularly in the dry season of the year. With the aim of improving the biomass yield of Maize (Zea mays L.). The used land was beforehand Elephant grass cultivated garden to reduce the residual effect of the soil. To address the aims 2m x10m trail was examined for 65 days; in all eight treatments each with three replications; the seed were local and traditionally used by farmers purchased and used to germinate. The seed were socked in water for 24 hours and germination was seen at six days of sowing. Treatments (T) were 10:1, 8:1, 6:1, 4:1, 2:1, and 1:1 (water: urine) ratio as well as Urea to DAP (Positive control) and the last with no urine, DAP & Urea fertilizer to (negative control).Treatments (Ts) 1, 2, 3, 4, 5, 6, 7and 8 each with three replications used respectively. Maize plant height in cm was 213.83; 199.39; 183.28; 181.38; 181.33; 166.28; 128.83 and 80.07 from 1 to 8 (Ts) respectively. Maize plant 2mx10m Biomass Yield in kg was 55; 38; 32; 31.33; 29.33; 22.67; 5.67; and 4.17 from 1 to 8 (Ts) respectively. The average over all treatments (Ts) maize plant estimated Biomass Yield in tons/ha was 82.5; 57; 48; 47;44; 34; 8.2; and 6.25 (Ts) respectively.. What has been observed from the trail was that; more diluted water to Urine ratio T1 (10:1) had much improved maize biomass yield; than the rest of treatments even from positive control trials. In the positive control trial drop-down biomass yield was pragmatic; this might be due to firing effect of the inorganic fertilizers; hence; jog-drop-watering was used that might not be sufficient enough to dilute like that of rainy water and causes to burn the roots. The harvested maize plant fodder was 100 percent palatable in feeding dairy cows. In conclusion ten parts of water with one part of cattle urine Technology can boost maize biomass yield. Urine collection method and storage technique to be further studied to exploit the cattle urine as nitrogen source is suggested.
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Changes in Organizational Structure from a Bureaucratic Organization to an Adhocratic one
During past decades, the management scholars have took various surveys to find a satisfactory structure for organizations. They supposed that, through studying the relation between features of a structure and operation, they can come to the best type of the structure and, consequently, guarantee the higher levels of organizational operations. Experimental studies illustrated that what is useful in an organization, may be useless for another. Such findings led to the emergence of 'contingency theory'. This theory claims that the amount or the degree of the relations changes between two variables, taking structure and operation for instance, and other consisting elements of an organization such as technology and workplace. The traditional organization used to possess hierarchical structures; while nowadays, coming across a more dynamic context, organizations experience novel types of organizational structure. Commonly, by elimination of hierarchy in decision making, organizations are able to response rapidly to the fast contextual variations. We believe that, in coming years, the organizational structures will move toward dynamic models to let the organizations get out of the bureaucratic state and pace in adhocratic structures.
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Combined effects of Soret-Dufour, Hall and radiation on unsteady MHD flow of dusty fluid past infinite inclined porous plate
The purpose of this paper is to present a numerical analysis of an unsteady three dimensional MHD flow of dusty fluid past an infinite inclined porous plate in presence of Soret effect, Dufour effect, radiation effect and Hall effect with variable temperature and concentration embedded in porous medium. At time t^'>0 the plate moves with constant velocity u_0 and at the same time, the plate temperature and concentration levels near the plate decreased exponentially with time t'. The governing boundary layer equations of flow problem are transformed into non linear partial differential equations using non dimensional quantities and solved numerically by Crank-Nicolson finite difference method. The obtained results for velocity profiles along x^' direction and z' direction, temperature profile and concentration profile are discussed through graphs and physical significance of quantities skin friction, Nusselt number, Sherwood number also discussed through tables. It is found that there are slightly change in velocity profile in x'-axis but measure change in z'-axis.
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Death as finality in Bertrand Russell’s Philosophy: A critique
Immortality of the human soul has been, like other problems in philosophy, an unresolved and perennial problem. Over the years, solutions to this problem have proven inadequate as a result of the varieties of modes of philosophizing; philosophers? theories or views; as well as the logical tenacity of these theories. A materialist, who is logically consistent with the tenets of materialism, cannot accept the existence of any spiritual reality. Bertrand Russell denied the immortality of the soul on the basis that man, instead of being made up of substances that is body and soul, is composed of events .He believes that death brings the human event to an end. Since there is a difference between “being”, and “acting”, we can argue that the existence (being) of a soul that survives death could be logically defended. The human soul exists, though it is not explicitly graspable. It is, ontologically independent of the body. In fact the soul accounts for the boringness of the body. Though the soul and the body unite essentially in man, their union does not in any way deprive the soul of its uniqueness. Thus, at their separation, the soul retains its properties and nature viz: being, substantiality and spirituality. Thing being this way, this research is aimed at refuting the claim that the soul ceases to be when the body is gone. In other words , the human soul, being spiritual and subsistent, as well as the cause of life in the human person, is immortal. So, however convincing Russell?s argument against the doctrine of immortality of the soul may be, we must not lose sight of the truth that life is larger than logic. This study will employ the expository, hermeneutical and analytical method of philosophy.
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Decomposition of a weaker form of fuzzy continuity
The aim of this paper is to give decomposition of a weaker form of continuity, namely fuzzy -continuity, by providing the concepts of fuzzy -closed set, fuzzy - set, fuzzy -continuity and fuzzy -continuity.
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