The effects of amphetamine on selective learning were tested in a trace conditioning procedure, in which the informativeness of the conditioned stimulus (CS) (noise) was manipulated through the introduction of a time interval before the delivery of the unconditioned stimulus (UCS) (food). The results showed that d-amphetamine (0.5 and 1.5 mg/kg) impaired both the expression (Experiment 1b) and ...

The understanding of the mechanical properties sensitive marine clay subgrade stabilized with cement is vital for safe, economical, and durable design road structures. As curing temperature affects hydration progress, it necessary to investigate influence on evolution cement-reinforced in construction. A column testing relevant monitoring program were performed study effect various temperatures...

Remediation of Cr(VI)-contaminated soil usually includes reducing Cr(VI) to Cr(III) with sub-sequent solidification. In this paper, a treatment technique that combines reduction, adsorption, and solidification was proposed. By introducing an adsorbent into the reduction process, remediation effectiveness improved amount solidified agent decreased. Synthetic precipitation leaching procedure (SPL...

Cement stabilized soil is one of the commonly used as ground reinforcement solutions in geotechnical engineering. In this study, main object was to apply three machine learning (ML) methods namely gradient boosting (GB), artificial neural network (ANN) and support vector (SVM) predict unconfined compressive strength (UCS) cement soil. Soil samples were collected at Hai Duong city, Vietnam. A to...

OBJECTIVE Newly presented unexplained complaints (UCs) are common in general practice. Factors influencing the transition of newly presented into persistent UCs have been scarcely investigated. We studied the number and the nature of diagnoses made over time, as well as factors associated with UCs becoming persistent. Finally, we longitudinally studied factors associated with quality of life (Q...

BACKGROUND Empirical evidence demonstrates that the Thai Universal Coverage Scheme (UCS) has improved equity of health financing and provided a relatively high level of financial risk protection. Several UCS design features contribute to these outcomes: a tax-financed scheme, a comprehensive benefit package and gradual extension of coverage to illnesses that can lead to catastrophic household c...

uniaxial compressive strength (ucs) is one of the most significant factors on the stability of underground excavation projects. most of the time, this factor can be obtained by exploratory boreholes evaluation. due to the large distance between exploratory boreholes in the majority of geotechnical projects, the application of geostatistical methods has increased as an estimator of rock mass pro...

It has been observed that anisotropic nature of rocks is assumed to be caused by disparity in their petrography (mineralogy, texture and micro-structures) including physical properties. These variations have been revealed to occur even in locations where there are only a few centimetres apart on most outcrops. Furthermore, comparable rock types in most localities may not yield the same engineer...