Radiation shield ing aprons are needed by radiation workers to minimize exposure the body. The apron s at present use fabric-coated lead plates which heavy and rigid materials therefore not comfortable use. Polymer from cassava starch glycerin with addition of Pb- nitrate filler 0 %, 2 4 6 % have been synthesized. Mixtures for synthesizing polymer composites were heated using a magnetic stirrer...

The purpose of this study was to determine the implementation academic supervision and teacher performance assessment, through programs, evaluation planning assessment. This uses a qualitative approach with descriptive method. Data collection techniques were carried out interviews, observation. research subjects principal, vice principal teachers at SMA Negeri 3 Timang Gajah Bener Meriah. data ...

The objective of this descriptive study was to analyze students' grammatical errors in writing assignments, case a cover letter for second-semester Computer Science students at University Semarang. target population included 21 enrolled Business English class chosen randomly from pool 50 participants. They were asked write an application English. Then, using the surface approach taxonomy, resea...

La psicología ha mostrado interés por el medioambiente desde nociones como la percepción, conducta proambiental u otras dimensiones psicológicas individuales. En los últimos años observamos mayor atención a las dinámicas psicosociales y comunitarias, sin embargo, predominan aquellas con foco en individuo urbano. este contexto identificamos surgimiento de comunidades intencionales que actúan int...