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One of the major problems encountered in qualitative and quantitative determination of residual pesticides by gas chromatography is the matrix effects. Matrix components have a considerable effect on the way analysis is conducted and the quality of results obtained, introducing problems such as inaccurate quantification, low analyte detectability and reporting of false positive or even false negative results. It was aimed to develop and validate a suitable method for counteracting the matrix effects so as to improve the detection and quantification of selected organochlorine pesticide residues...

The operational aspects of Lambda Calculus are studied as a fundamental basis for high-order functional computation. We consider systems having full reduction semantics, i.e., equivalence-preserving transformations of functions. The historic lineage from Eval-Apply to SECD to RTNF/RTLF culminates in the techniques of normal-order graph Head Order Reduction (HOR). By using a scalar mechanism to artificially bind relatively free variables, HOR makes it relatively effortless to reduce expressions beyond weak normal form and to allow expression-level results while exhibiting a well-behaved linear ...

Political Cartoons, otherwise known as Editorial Cartoons, are single panels of graphics that are satires of political events. Apart from serving as a corrective measure, they also serve as historical documents and are a 'snapshot' of the political climate of a given period. Over the years cartoons have shaped public opinions on societal issues that have sometimes resulted in tragedies in the manner in which information is transmitted to the public. In 2005, over 300 people were killed in the Northern part of Nigeria during a religious riot fueled by a Danish Editorial Cartoon publication w...

The fragmentation of strategies that distinguishes the more successful elementary grade students from those least successful has been documented previously. This study investigated whether this phenomenon of divergence and fragmentation of strategies would occur among undergraduate students enrolled in a remedial algebra course. Twenty-six undergraduate students enrolled in a remedial algebra course used a reform curriculum, with the concept of function as an organizing lens and graphing calculators. The other major focus of this study was to investigate whether students who are more successfu...

This research, undertaken with children's services social workers who have worked in an urban Local Authority in South Wales, UK, sets out to explore whether statutory social services departments meet the psychological needs of refugee children. The study is in the form of a comparative study of refugee and non-refugee children. The comparison was made in relation to the children's psychological presentation pre- and post-intervention by the statutory social services department. This investigation was undertaken in response to general observation and research evidence that suggest the possibil...

The following is a qualitative study regarding the experiences of law enforcement operatives engaged in deep-undercover persona. There were four participants in this study, although in keeping with the study's safeguards, no demographic or other identifying information concerning those participants is provided. Face-to-face, semi-structured qualitative interviews were conducted with the participants. Those interviews were audio-recorded, transcribed, and redacted for de-identification purposes in keeping with safeguards. The transcribed interviews were then analyzed using a grounded theory pro...

Internationally adopted persons confront multiple challenges in constructing their identities. This study of the narrative burden of self looks at and interprets the dynamic process in which internationally adopted people develop, coordinate and manage their sense of self, identity and cultural/racial personhood. Drawing on the theory of the Coordinated Management of Meaning (CMM), the study focuses on their use of orphaning and adoption stories to most skillfully position and tell one's origin story in concert with one's internal sense of self, and the pressures and forces found in interpers...

Farmer adoption of sustainable agricultural practices is key to sustainable development, as changes at the farm level are essential to ensuring food security and environmental protection. Reasons for converting to sustainable farming have been studied in a number of instances. However, the underlying rationale that motivates this behaviour is not always made clear. The village of Bajwada in Madhya Pradesh is used as a case to investigate farmer perceptions and attitudes regarding sustainable farming. An innovator has been promoting what seems to be a highly productive and lauded method of s...

A formal training program with theoretical and practical components is essential for all emergency medical personnel involved in providing care for critically injured patients. Communication, effective first aid, and on time transportation to a health center play a major role in improving quality of care for critically injured patients. Using life experience examples, participants in the study emphasized the importance of each factor on the delivery of quality care for critically injured patients. Recommendations based on the study findings included two main categories. The first category illu...

The purpose of this qualitative study was to explore the experiences and perceptions of 10 selected academically successful African American male leaders. In this study, "academic success" was defined as these African American men who attained a master's or postgraduate degree such as a M.D., Ph.D., or J.D. Even though there is bountiful research on the deficiencies in the lives of African American males, it is still unclear what conditions lead African American men to higher educational attainment. The goal of this study was to also add to the deficient, ever-emerging body of research in the ...