941 research outputs found

    The Provost\u27s Path: How More Than 200 Scholars Reached the Top Academic Job on Campus, and Where They Went Next

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    For professors who have risen through the ranks of academic administration, serving as provost lets them broaden their reach. Provosts set an institution’s academic vision, supervise deans, oversee accreditation, create strategic plans, and manage budgets, among other things. It’s also a job with cachet on campus. The provost, second in command, is widely recognized as having a job that is a steppingstone to other high-profile positions, particularly a college presidency. In more ways than one, the provost’s role is a pivotal one, and even more so at the sprawling academic enterprises that are the nation’s top research institutions

    A study of methanol and silicon monoxide production through episodic explosions of grain mantles in the Central Molecular Zone

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    Methanol (CH3_3OH) is found to be abundant and widespread towards the Central Molecular Zone, the inner few hundred parsecs of our Galaxy. Its origin is, however, not fully understood. It was proposed that the high cosmic ray ionisation rate in this region could lead to a more efficient non-thermal desorption of this species formed on grain surfaces, but it would also mean that this species is destroyed in a relatively short timescale. In a first step, we run chemical models with a high cosmic ray ionisation rate and find that this scenario can only reproduce the lowest abundances of methanol derived in this region (∼\sim10−9^{-9}-10−8^{-8}). In a second step, we investigate another scenario based on episodic explosions of grain mantles. We find a good agreement between the predicted abundances of methanol and the observations. We find that the dominant route for the formation of methanol is through hydrogenation of CO on the grains followed by the desorption due to the grain mantle explosion. The cyclic aspect of this model can explain the widespread presence of methanol without requiring any additional mechanism. We also model silicon monoxide (SiO), another species detected in several molecular clouds of the Galactic Centre. An agreement is found with observations for a high depletion of Si (Si/H ∼\sim 10−8^{-8}) with respect to the solar abundance.Comment: Accepted in MNRA

    A National Study of Baccalaureate Degree Completions in the Sciences: An Overview of Institutional Success by Public, Private, and Proprietary

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    The purpose of this study was to examine baccalaureate degree completions in the sciences within public, private, and proprietary higher education institutions by ethnicity to determine which educational sectors (and science categories) were producing more graduates, specifically minority graduates

    The Functional Organization of the Vestigial Locus in \u3ci\u3eDrosophila melanogaster\u3c/i\u3e

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    Vestigial mutants are associated with imaginal disc cell death which results in the deletion of adult wing and haltere structures. The vestigial locus has previously been cloned, and mutational lesions associated with a number of vg alleles were mapped within a 19 kb DNA region defined as essential for vg function. Herein we report the identification and characterization of a developmentally regu-lated 3.8 kb vg transcript which is spliced from exons distributed throughout the essential interval defined above. All the characterized classical alleles have predictable effects on this transcription unit, and the severity of this effect is directly proportional to the severity of the wing phenotype. A repetitive domain within this transcription unit was identified and may serve as a tag to isolate other genes with functions related to vg. We also report an exceptional vg allele (vg 8 3 b 2 7) that produces an extreme wing and haltere phenotype, but which defines a second vg complementation unit. This allele is associated with a 4 kb deletion entirely within a 4.5 kb vg intron as defined by the 3.8 kb transcription unit. Molecular and genetic evidence indicates that the vg 8 3 b 2 7 mutation has a func-tional 3.8 kb transcription unit, thus accounting for its ability to complement classical alleles. The results indicate that sequences within a vg intron are essential for normal wing and haltere develop-ment

    The Functional Organization of the Vestigial Locus in \u3ci\u3eDrosophila melanogaster\u3c/i\u3e

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    Vestigial mutants are associated with imaginal disc cell death which results in the deletion of adult wing and haltere structures. The vestigial locus has previously been cloned, and mutational lesions associated with a number of vg alleles were mapped within a 19 kb DNA region defined as essential for vg function. Herein we report the identification and characterization of a developmentally regu-lated 3.8 kb vg transcript which is spliced from exons distributed throughout the essential interval defined above. All the characterized classical alleles have predictable effects on this transcription unit, and the severity of this effect is directly proportional to the severity of the wing phenotype. A repetitive domain within this transcription unit was identified and may serve as a tag to isolate other genes with functions related to vg. We also report an exceptional vg allele (vg 8 3 b 2 7) that produces an extreme wing and haltere phenotype, but which defines a second vg complementation unit. This allele is associated with a 4 kb deletion entirely within a 4.5 kb vg intron as defined by the 3.8 kb transcription unit. Molecular and genetic evidence indicates that the vg 8 3 b 2 7 mutation has a func-tional 3.8 kb transcription unit, thus accounting for its ability to complement classical alleles. The results indicate that sequences within a vg intron are essential for normal wing and haltere develop-ment

    The Functional Organization of the Vestigial Locus in \u3ci\u3eDrosophila melanogaster\u3c/i\u3e

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    Vestigial mutants are associated with imaginal disc cell death which results in the deletion of adult wing and haltere structures. The vestigial locus has previously been cloned, and mutational lesions associated with a number of vg alleles were mapped within a 19 kb DNA region defined as essential for vg function. Herein we report the identification and characterization of a developmentally regu-lated 3.8 kb vg transcript which is spliced from exons distributed throughout the essential interval defined above. All the characterized classical alleles have predictable effects on this transcription unit, and the severity of this effect is directly proportional to the severity of the wing phenotype. A repetitive domain within this transcription unit was identified and may serve as a tag to isolate other genes with functions related to vg. We also report an exceptional vg allele (vg 8 3 b 2 7) that produces an extreme wing and haltere phenotype, but which defines a second vg complementation unit. This allele is associated with a 4 kb deletion entirely within a 4.5 kb vg intron as defined by the 3.8 kb transcription unit. Molecular and genetic evidence indicates that the vg 8 3 b 2 7 mutation has a func-tional 3.8 kb transcription unit, thus accounting for its ability to complement classical alleles. The results indicate that sequences within a vg intron are essential for normal wing and haltere develop-ment

    The WHOI Moored Array Project 1963-1978 : data directory and bibliography

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    General information about mooring locations, durations and data gathered by the Moored Array Project (also known as Buoy Group) between late 1963 and 1978 is listed. Also included is a comprehensive list of scientific and technical publications written by the Buoy Group staff.Prepared for the Office of Naval Research under Contract N00014-76-C-0197; NR 083-400 and for the National Science Foundation under Grant OCE 77-19403

    Freshman Piano Recital

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    Along theWriteLines: a case study exploring activities to enable creative writing in a secondary English classroom.

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    This article arises from a four week study of a class of 14-15 year old students. The study explored students’ perception of themselves as writers and the effects of a variety of teaching and learning strategies on their creative writing responses. The aim of the project was to enhance the students’ creative writing, whilst ascertaining whether there were particular activities or types of writing that would lead to students perceiving more satisfactory outcomes in their writing. It answers the research question: What do I observe, and what do my students say, about the experience of different classroom based creative writing tasks

    Impact of Human Rights Council Reports on Mental Health

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