Recent research on BIF-related high-grade iron ore mineralization has resulted in new genetic models that emphasize the structurally controlled hypogene alteration and upgrade of BIF to high-grade (>65% Fe) iron ore. Conventional structural and stratigraphic mapping and reconstructions of the tectonic history of iron districts, in combination with high-tech geochemical analyses such as laser IC...

With the rapid development of the Internet, the application of data mining in the Internet is becoming more and more extensive. However, the data source’s complex feature redundancy leads that data mining process becomes very inefficient and complex. So feature selection research is essential to make data mining more efficient and simple. In this paper, we propose a new way to measure the corre...

As conventional intercepting diagnostics will not withstand high intensity ion beams, Beam Induced Fluorescence (BIF) profile monitors constitute a preeminent alternative for non-intercepting profile measurements [1]. This diagnostic technique makes use of the optical fluorescence emission of beam-excited gases. Recently BIF became an important diagnostic tool for transversal beam profile measu...

Cognitive behavior therapy targeting emotion regulation is found to be effective in decreasing externalizing problems, but little known about the capacities of adolescents with problems and Mild Intellectual Disabilities or Borderline Functioning (MID-BIF). Therefore, aim this study was compare (i.e., anger) capacities, angry mood level variability between two groups: MID-BIF average intelligen...

Adolescents and young adults with a mild intellectual disability or borderline functioning (MID-BIF) are at risk for problematic substance use more likely to have emotional behavioral problems than peers without MID-BIF. A personality-targeted prevention program called Take it Personal! effectively reduces in adolescents The program’s effectiveness was examined on its secondary goal: reducing p...

Stamen primordia transform into slender filaments bearing pollen-laden anthers in a series of well-defined developmental steps (Goldberg et al., 1993; Scott et al., 2004). During anther stages 1-7, anther morphology is established, cell specification and differentiation occur, and microspore mother cells undergo meiosis (Sanders et al., 1999). At anther stages 8-14, pollen grains differentiate,...

Introduction: Microbial metabolic activity is significant in the cycling of phosphorus in aquatic and sedimentary environments. The requirement of microorganisms to use elemental phosphorous for energy transfer and to bind, concentrate and cause crystalliza-tion of phosphates is well established [e.g. 1,2]. The crystallization of phosphates in a sedimentary environment commonly occurs when the ...

Abstract Published and unpublished iron isotope data from banded formations (BIF) their BIF-hosted hypogene (hydrothermal) ores the Quadrilátero Ferrífero (itabirites), Corumbá, Carajás districts in Brazil, as well Hamersley province Australia are presented discussed. BIF constitutes a typically thinly bedded or laminated chemical sedimentary rock, with ≥ 15% Fe layers of chert, chalcedony, jas...

We report Si-isotopic compositions of 75 sedimentologically and petrographically characterized chert samples with ages ranging from 2600 to 750 Ma using multi-collector inductively coupled plasma mass spectrometry. dSi values of the cherts analyzed in this study show a 7& range, from 4.29 to +2.85. This variability can be explained in part by (1) simple mixing of silica derived from continental...