Student unrest witnessed in public secondary schools in Kenya especially in the second term is a threat to the education system. This study employed binary logistic regression analysis to analyze the factors associated with unrest among public secondary school students in Kenya. The dichotomous outcome variable was whether unrest would occur in a school or not.  The selected explanatory variables were type of school, age, experience and leadership style of the principal.   Data used in the study was collected from thirty principals in Bungoma, Kenya. The logistic regression model suggested that the coefficients of the principal’s experience (1.567, p=000) and type of school (3.491, p=000) were statistically significant. The study recommended that promotion of teachers to management position should be based on experience.

The over reliance on trial and error technique by many engineers/welders in the selection of optimum conditions of welding and heat treatment process variables to maximize the mechanical properties of steel weldment for enhanced performance in service has always been a huge challenge. Therefore, to avoid this time consuming practice, which most often do not produced welds with satisfactory quality in terms of fitness for service and cost. This research study has therefore, provides a systematical approach in developing an appropriate mathematical relationship between the process and response variables, with an optimization method for finding the welding and heat treatment process variables to maximize tensile ductility of the arc-welded and tempered micro-alloyed steel. The response surface methodology based on optimal design was employed to model and optimize the process variables. The results of the analysis of variance of the developed model for percent elongation indicated that it is statistically significant at p<0.0001. The regression coefficient (R2) and adjusted coefficient (R2adj.) values of 97.77% and 95.76% respectively, indicate that the developed model can adequately approximate the actual response data in the design space, and a proof that it is valid. Predicted and experimental results of the validation tests were found to be in reasonable agreements. This implies that the optimization technique adopted was reliable. The optimum input values of the process variables that resulted in maximum percent elongation of 29.523% in the micro-alloyed steel weldment were welding current setting of 101.408amps, tempering temperature of 4500C and soaking time of 120.0003 minutes.

This paper responds to a concern about the neglect of minor sub- dialects such as Samor in a wide range of research that focus on the analysis of tense. It is noted in this research that a majority of studies tend to focus on dominant languages leaving out minor sub- dialects. This paper focuses on the varying morpho- syntactic features in Samor a minor sub- dialect that mark tense. A linguist’s desire is to investigate less studied dialects so as to describe their grammar. This paper responds to that concern. The paper contends that there is need to investigate the unique grammatical properties of minor sub- dialects since this aids in the preservation and understanding of the unique character traits that describe the people of this earth. One such character trait that describes people is the language they speak. The paper discusses the phonological features and strategies used in expressing tense and aspect in Samor. The research used the non- probability sampling using the convenience or opportunity sampling to sample one hundred utterances in Samor that were used to analyze the data. The paper used tape recording, interview and field notes to collect data. Non- probability sampling was also used to select the ceremonies that would be tape recorded. The data was transcribed, organized and analysed for tense marking strategies. Using Feature Checking Theory, this theory is important since it identifies the grammatical features that are used to mark tense. The theory proposes the following tense marking features: tense, person, number and gender. The theory proposes that such features are checked against any utterance to ensure grammaticality. In addition, the study used another theory in descriptive linguistics referred to as Grounded Theory. This theory enables a researcher to categorize data into analyzable units. The paper found out that Samor is a verb initial sub- dialect and morpho- syntactic features such as tense and aspect are marked in the verbal stem by attaching affixes. In addition, the paper found out that phonological processes such as tone, vowel lengthening and doubling play a key role in tense and aspect marking in Samor.