Some empirical issues in research on academic departments: Homogeneity, aggregation, and level of analysis

This study investigated the appropriateness of the academic departmental level of analysis. Homogeneity of faculty members' responses to measures of organizational structure, environmental uncertainty, and task routineness was examined to determine the legitimacy of aggregating those responses to create departmental level variables. Analysis of variance suggested that the structure and environmental uncertainty subscales were measuring departmental level phenomena, but that the task routineness scales were not. Results demonstrate the importance of empirically testing, rather than assuming, levels of analysis in studies of academic departments.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/43590/1/11162_2004_Article_BF00974806.pd

A reassessment of the Hypoglossum group (Delesseriaceae, Rhodophyta), with a critique of its genera

A reassessment of the Hypoglossum group (Delesseriaceae, Rhodophyta), with a critique of its genera. Eight genera are assigned to the Hypoglossum Kützing, Phitymophora J. Agardh, Pseudobranchioglossum Bodard, and Zellera Martens. The circumscription of the group is emended to include forms with network-forming ( Zellera ) an dspirally twisted ( Duckerella ) thalli. The definition of the group is lalso modified to include members (e.g. some species of Hypoglossum ) in which tetrasporangia are produced by primary cells as in the Caloglossa group. Exogenous branching, a distinguishing feature of the closely related Caloglossa group, never occurs in the Hypoglossum group.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47938/1/10152_2006_Article_BF02365624.pd