Anthropogenic pollution often leads to the generation of technosols, technogenic soils with inhospitable conditions for all living organisms including microbiota. Aluminum production near Ziar nad Hronom (Slovakia) resulted in the creation of a highly alkaline and heavy-metal-rich brown mud landfill, from which a bacterial strain of a likely new species of the genus Acinetobacter, Acinetobacter sp. K1, was isolated. The whole-genome sequence analysis of this strain confirmed the presence of operon units enabling tolerance to the heavy metals copper, zinc, cobalt, cadmium, chromium, and metalloid arsenic, which are functionally active. Despite the predominance of plasmid-related sequences in the K1 genome, the results indicate that most of the resistance genes are chromosomally encoded. No significant alkali tolerance of Acinetobacter sp. K1 was observed in vitro, suggesting that community level mechanisms are responsible for the survival of this strain in the highly alkaline, brown mud bacterial community.
Higher education institutions aim to incorporate competency development into their engineering curricula, which can help engineering students become independent critical thinkers with entrepreneurial mindsets. However, no solid methods exist to evaluate the acquisition of these competencies. Such assessments’ objectivities are often ensured by distinguishing between who supervises a student group and who grades its project. The assessor’s active involvement in the learning process is essential for assessing competency development during the learning process, but such involvement may lead to assessor bias. This study aims to investigate whether and under what conditions coaches can be objective assessors. An intraclass correlation coefficient (ICC) was used to measure the level of agreement between assessors and coaches when using the same rubric to assess students’ deliverables. Four assessors and seven coaches from the University of Twente assessed 24 students’ individual learning processes based on individual reflection deliverables. The coaches assessed the students they supervised during a challenge-based learning (CBL) course, while the assessors were without participating in the learning process assigned randomly to students. The means were compared using SPSS, which indicated, among other things, that coaches generally awarded higher scores than assessors. This may indicate that coaches are biased because of their involvement in the learning process. Despite this, the results also indicate that coach assessment was in line with assessors when the coach was an appointed and experienced examiner.
Profesor Eduard A. Vysotsky, doktor nauk geologicznych i mineralogicznych, cz onek Bia oruskiej Akademii Górniczej, wybitny geolog bia oruski i znakomity specjalista w zakresie bada utworów ewaporatowych, zmar 10 maja 2011 r. Eduard A. Vysotsky urodzi si 13 sierpnia 1943 r. w Witebsku. W 1965 r. uko czy z wyrónieniem studia na Wydziale Geogra i Bia oruskiego Uniwersytetu Pa stwowego i rozpocz prac w charakterze m odszego pracownika naukowego w oddziale stratygra i i paleontologii Instytutu Nauk Geologicznych Ministerstwa Geologii ZSRR; du rol w jego rozwoju naukowym odegrali wtedy A.V. Fursenko (cz onek-korespondent Akademii Nauk, który by jego kierownikiem), V.K. Golubtsov, S.A. Kruchek i G.I. Kedo. W latach 1967-1968 E.A. Vysotsky by zatrudniony w Instytucie Nauk Geologicznych jako in ynier-konstruktor; uczestniczy wtedy w badaniach osadów solono nych i wyst pie soli potasowych w niecce prypeckiej, a tak e w przygotowaniu dokumentacji poziomów soli potasowych w powstaj cych szybach 3. Soligorskiego Kombinatu Potasowego (obecnie: 3. Zarz d OTA "Belaruskaliy"). W tym czasie znacz cy wp yw wywarli na niego-jako geologa i naukowcawybitni bia oruscy geolodzy solni, tacy jak M.I. Lupinovich, V.Z. Kislik i D.M. Yeroshina. W 1969 r. Eduard A. Vysotsky rozpocz studia podyplomowe i badania pod kierunkiem naukowym prof. M.P. Fivega, wybitnego geologa solnego z Wszechzwi zkowego Instytutu Badawczego Geologii (VNIIG) w Leningradzie, a w 1971 r. obroni rozpraw doktorsk nt. geologii warstw solono nych pó nocnej cz ci niecki prypeckiej, wyja nienia warunków ich powstawania oraz poszukiwania ich wyst pie , uzyskuj c stopie naukowy kandydata.
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