cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: THE IMPACT OF AFRICAN-AMERICAN MALE PRINCIPALS ON AFRICAN-AMERICAN MALE STUDENTS IN TWO ALL-MALE URBAN SCHOOLS
Creators: name: (:Unkn) Unknown
Publisher: name: George Mason University
Year: 2019

description: African American male principals grapple with the difficulties of the what can be done to increase the leadership behaviors of the African-American principals as they interact with their African-American male students. The U.S. Department of Education report on diversity among educators showed only 10 percent of public-school principals are African-American. The purpose of the case study was to investigate the interactions and relationships that occur through leadership behaviors of African-American male principals in all-male urban schools. The study was with two African-American male principal participants in two schools, an urban private school and a public charter school in the Mid-Atlantic region. Data were obtained through interviews, observations, and student data analysis. Further, the principals participated in qualitative interviews to explore their experiences, perceptions, observations, and career influences. The findings indicate that the African-American principals both had explicit visions for how to best lead their schools, including specific strategies to help the growth of the African American male students that they lead. In addition, qualitative analysis examined interventions and student performance. The study indicated that African-American principals play an integral part in the schooling of African-American male student, manpower, resources and relationships can severely limit their ability to create meaningful experiences with the African-American male students. The studies main findings ascertained that African-American male principals’ impact African-American male students in all-male urban schools by developing meaningful relationships, through making cultural connections, and facilitating reform within their school building. The implications of the study are geared to build stronger student relationships, expand staff relationships, increase mentoring opportunities, use influence to expand school resources and reform changes.
title: Plant-Associated Representatives of the Bacillus cereus Group Are a Rich Source of Antimicrobial Compounds
Creators: name: Vater, Joachim
name: Tam, Le Thi Thanh
name: Jähne, Jennifer
name: Herfort, Stefanie
name: Blumenscheit, Christian
name: Schneider, Andy
name: Luong, Pham Thi
name: Thao, Le Thi Phuong
name: Blom, Jochen
name: Klee, Silke R.
name: Schweder, Thomas
name: Lasch, Peter
name: Borriss, Rainer
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: Bacillus cereus
subject: phylogenomics
subject: DNA–DNA hybridization (ddH)
subject: biocontrol
subject: plant growth promotion (PGP)
subject: biosynthesis gene cluster (BGC)
subject: kurstakin
subject: thumolycin
subject: 570 Biologie

description: Seventeen bacterial strains able to suppress plant pathogens have been isolated from healthy Vietnamese crop plants and taxonomically assigned as members of the Bacillus cereus group. In order to prove their potential as biocontrol agents, we perform a comprehensive analysis that included the whole-genome sequencing of selected strains and the mining for genes and gene clusters involved in the synthesis of endo- and exotoxins and secondary metabolites, such as antimicrobial peptides (AMPs). Kurstakin, thumolycin, and other AMPs were detected and characterized by different mass spectrometric methods, such as MALDI-TOF-MS and LIFT-MALDI-TOF/TOF fragment analysis. Based on their whole-genome sequences, the plant-associated isolates were assigned to the following species and subspecies: B. cereus subsp. cereus (6), B. cereus subsp. bombysepticus (5), Bacillus tropicus (2), and Bacillus pacificus. These three isolates represent novel genomospecies. Genes encoding entomopathogenic crystal and vegetative proteins were detected in B. cereus subsp. bombysepticus TK1. The in vitro assays revealed that many plant-associated isolates enhanced plant growth and suppressed plant pathogens. Our findings indicate that the plant-associated representatives of the B. cereus group are a rich source of putative antimicrobial compounds with potential in sustainable agriculture. However, the presence of virulence genes might restrict their application as biologicals in agriculture.