General Problems Experienced by Elementary Classroom Teachers

This study presents the frequency and bother someness of some general problems of a sample of elementary school teachers (n = 439) in a Midwest state, USA. The problems are from self-reports of teachers measured using the abridged version of the teacher problem checklist. The top five problems of elementary school teachers reported in the study are: (I) insufficient preparation time; (2) insufficient time to teach and also to diagnose and evaluate teaching; (3) insufficient free time; (4) motivating students to use their leisure time well, and (5) motivating students to enjoy learning for its own sake. It was also found that the same top five problems bothered all the teachers

Error Monitoring Strategy in Writing Activities of English Department Students

The term of writing can not be seperated from English Department Students. It is a part of students' skill to see whether they are able to use English well or not in their daily life. Moreover, They are not only able to use in spoken language but also are able to express their ideas in writing form. Writing ability is specific ability which helps students to put their ideas into words in meaningful form and interract with the message.It can not be denied, there are some problem faced by students in writing. It may be related to garammatical form, coherence and cohesion of paragraph, spelling, etc. However, it is still a process. The problem right now is how to make studets aware about their mistake or error in writing. Therefore, in this article writer will disscuss about the strategy that can be used by students. It is Error Monitoring Strategy. Error monitoring strategy is a learning strategy that helps students systematically question themselves regarding capitalization, overall appearance, punctuation, and spelling errors in their written products, as well as correct them, before submitting the assignment to the lecturer

Single phase inverter system using proportional resonant current control

This paper presents the harmonic reduction performance of proportional resonant (PR) current controller in single phase inverter system connected to nonlinear load. In the study, proportional resonant current controller and low pass filter is discussed to eliminate low order harmonics injection in single phase inverter system. The potential of nonlinear load in producing harmonics is showed and identified by developing a nonlinear load model using a full bridge rectifier circuit. The modelling and simulation is done in MATLAB Simulink while harmonic spectrum results are obtained using Fast Fourier Transfor. End result show PR current controller capability to overcome the injection of current harmonic problems thus improved the overall total harmonic distortion (THD)

Modification of soil structure of sand tailings: 2. effect of silt, sand and clay contents on aggregate development using organic amendments

The effect of skeletal materials (silt and very fine sand) and clay on aggregate formation and stabilization of organically amended sand tailings (99% sand) was investigated. In this experiment, sand tailings were mixed with different proportions ofslime (slime contains 37% silt + very fine sand and 33% clay) and then treated with palm oil mill effluent (POME) cake at the rate of 10.5 g of POME cake per 1200 g of sand-slime mixture. The mixtures were incubatedfor 2 weeks and then air-dried. The extent of aggregation of the samples was determined by dry sieving, and the aggregate stability by wet sieving. The addition of silt + very fine sand and clay improved aggregation and aggregate stability of the sandy soils. The optimum amount of clay required to achieve a good aggregation and aggregate stability for the amount of organic matter added is 25%, where the increase in stability was seven-fold over the control. With slime, which contains 33% clay, this amount of clay can be achieved from a mixture of 75% slime + 25% sand tailings. This mixture contains 32% skeletal materials

The relationships between cage floor preferences and performance in broiler chickens

Two experiments were conducted with broiler chickens to determine cage floor preferences, the strength of preference for a particular floor type and to evaluate the effect of rearing broilers on the preferred cage floor on productivity. In experiment 1, chicks when offered free access to either wire (WF) or plastic (PF) mesh flooring, preferred the former. However, when the perferred floor type (WF) was illuminated at 800 lux, birds spent longer time on PF. Also provision of incandescent lamps at PF resulted in broilers spending significantly longer period on WF. In experiment 2, while floor type had no effect on growth of female chicks throughout the duration of study, male chicks grown on PF were heavier than their WF counterparts on Days 21, 28, 35 and 42. Neither livability, nor incidence of breast blisters and leg deformities was affected by floor type