This study was carried out to evaluate the technical efficiency and production practices of castor farmers in Oyo Kwara States, Nigeria. Snowballing sampling technique used. Data on practices, inputs, outputs were collected with aid a structured questionnaire by trained enumerators analysed using data envelopment analysis (DEA). Results showed that mean 0.4272 or 42.72%, maximum 1 minimum 0.131...

Objective. The objective of this study was to evaluate the efficacy of two retreatment NiTi systems (protaper universal retreatment files, R-Endo), when compared to manual technique in removing Gutta-percha obturated with two sealers. Study Design. Sixty extracted single-rooted premolars were instrumented with Protaper rotary files till F3. The specimens were divided into six groups. Groups 1, ...

in order to evaluate the competitive ability of legume cover crops on interference of weeds in corn, an experiment was carried out in sari agricultural sciences and natural resources university during 2011 growing season. this research was carried out based on complete block design with three replications. treatments consisted of three cover crops including: soybean (glycine max l.), fenugreek ...

This study used computed tomography (CT) to compare apical canal transportation in mesiobuccal canals of maxillary molars prepared with different techniques. Sixty teeth were assigned to 3 groups (n=20), according to the technique used for root canal instrumentation: hand instrumentation with K-Flexofiles, K-Flexofiles activated by an oscillatory system and ProTaper NiTi rotary system. Pre and ...

PURPOSE To calculate a beam-shaping optical element for homogeneous intensity distribution within a focal ring to be used in nonmechanical trephination with the Er:YAG laser in penetrating keratoplasty instead of a spot guiding device. METHODS The phase distribution behind a holographic optical element (HOE) k psi(u) can be described by the addition of the hologram phase phiH(u) to the beam p...

to compare the effects of different weed management methods on seed bank of weeds grown in sugar beet (beta vulgaris l.), a field experiment was conducted at the agricultural research station, ferdowsi university of mashhad, iran, during 2006, 2007 and 2008. the experiment designed as a complete randomized block with three replications. the treatments including: disk+ fhenmedifham, disk+ fhenme...

To determine “Effect of integrated weed management practices in direct sown finger millet”. The field experiment was conducted during rabi 2022 at South Farm, Karunya Institute Technology and Sciences, Coimbatore. soil the experimental sandy clay loam texture, pH 6.9, level organic content (0.37%), available N (336 kg ha-1), P (91 ha-1) K (261 ha-1). laid out completely randomized block design....

Aim: To compare the instrumentation time efficiency of rotary and hand instrumentation performed on necrotic human primary teeth. Methodology: Patients aged 4-7 years were enrolled, forty five teeth (19 maxillary and 26 mandibular teeth), which had a total of 102 canals and completely formed apices and of minimum 10 mm root length were selected. Of the 45 treated primary molars, 31 teeth were d...