67 research outputs found
Financial analysis of capital budgeting in a mature airline industry
No full textThesis. 1975. M.S.--Massachusetts Institute of Technology. Alfred P. Sloan School of Management.Bibliography: leaf 82.by Philip M. Condit.M.S
Connections: A Journal of Public Education Advocacy - Fall 2002, Vol. 9, No. 2
No full textPresident's Message - Wendy D. Puriefoy sees education as the universal liberator and children as our nation's most valuable resource.Richard Riley on Transforming American Education - Don't shortchange adolescents, urges Richard W. Riley, Clinton administration secretary of education, as we build for a knowledge-driven economy.Q&A: Bob Moses - Civil rights activist Bob Moses promotes math literacy as the key to education and economic access.Making It Happen - Phyllis McClure, Title I expert, alerts parents and communities to valuable NCLB-mandated information on schools, districts, and states coming their way.Viewpoint - Boeing Company CEO Philip M. Condit links the need for a worldclass workforce to the need for quality public education.Conversations - Grassroots organizer Donna Cooper, Maryland lawmaker Pete Rawlings, and New York attorney Michael Rebell discuss accountability, adequacy, and fiscal equity as long-term investments in the future of our nation.End Notes - William Novelli, CEO, on how AARP members put lifelong learning into action
Annual dendrometer data from the Barro Colorado Island 50-ha forest dynamics plot for 2015-2020
No full textPlease cite these data as
Ramos, Pablo, Paulino Villareal, Richard Condit, KC Cushman, and Helene C. Muller-Landau. 2022. Annual dendrometer data from the Barro Colorado Island 50-ha forest dynamics plot for 2015-2020. Smithsonian Figshare. DOI 10.25573/data.19985066
Corresponding author: Helene C. Muller-Landau, [email protected]
These are data from recensuses of dendrometer bands on selected trees on the Barro Colorado Island 50 ha forest dynamics plot, part of the Smithsonian ForestGEO network of large forest dynamics plots.
They appear in the form in which they were used by Jessica F. Needham in analyses for the following publication:
Needham, J.F., Arellano, G., Davies, S.J., Fisher, R.A., Hammer, V., Knox, R., Mitre, D., Muller-Landau, H.C., Zuleta, D., and Koven, C.D. Tree crown damage and its effects on forest carbon cycling in a tropical forest. 2022. Global Change Biology.
The data archived here are for six dendrometer censuses that took place in the late wet seasons of 2015 (census 16), 2016 (census 18), 2017 (census 20), 2018 (census 22), 2019 (census 23), and 2020 (census 24).
Contributions:
Research design and supervision: Helene C. Muller-Landau
Data collection: Pablo Ramos, Paulino Villareal
Database design and curation procedure: Richard Condit, Helene C. Muller-Landau, Anudeep Singh
Calculation of diameter with correction for curvature: Matteo Detto, Helene C. Muller-Landau
Data QAQC (quality assurance and quality control): Helene C. Muller-Landau, Pablo Ramos, Richard Condit, KC Cushman, Adam Collins, Pete Kerby-Miller, Suzanne Lao.
Funding: The BCI 50 ha plot dendrometer data collection was initiated with funding from the HSBC Climate Partnership (2007-2011) and was continued with funding from the Smithsonian Institution ForestGEO program.
This study was located within and enabled by the Barro Colorado 50-ha plot.
The data for the main censuses of this plot through 2015 are available in the following data publication:
Condit R., Perez, R., Aguilar, S., Lao, S., Foster, R., Hubbell, S.P. 2019. Complete data from the Barro Colorado 50-ha plot: 423617 trees, 35 years, 2019 version. https://doi.org/10.15146/5xcp-0d46.
Trees were selected in a size-stratified and spatially stratified design, as detailed below.
100 40x40 m subplots were placed randomly across the plot, with the constraint that these plots were nonoverlapping and that their edges aligned with the edges of 20x20 m quadrats. The centers of these plots, in 50 ha plot coordinates (units of meters), are given in the file “bci40x40sxy.txt”, included as part of this repository. All trees with a dbh (diameter at 1.3 m or above buttresses) of 80 cm or larger were included throughout the plot. Trees with a dbh of 40-80 cm were included if they were located within the 40x40 m subplots. Trees with a dbh of 20-40 cm were included if they were located within 20x20 m subplots centered within the 40x40 m subplots. Trees with a dbh of 10-20 cm were included if they were located within 10x10 m subplots centered within the 40x40 m subplots. Trees with a dbh of 5-10 cm were included if they were located within 5x5 m subplots centered within the 40x40 m subplots. (Here, dbh of 5-10 cm means dbh greater than or equal to 5 cm, and less than 10 cm, and so forth.)
The initial sample was selected in 2007 (based on the 2005 census data), and new recruits into the spatially and size-stratified sample were added after each main plot census (main plot censuses in 2010, 2015). In adding trees to the initial census based on the 2005 census data, the size threshold for checking trees was lower than the size threshold for inclusion, to try to insure that trees that had grown into the size class since the 2005 census were included. Some selected trees were not appropriate for installation of dendrometers for one or more of the following reasons: palms (excluded because they do not generally grow in diameter), strangler figs (form too irregular for band dendrometers to provide useful information about woody growth), very large buttresses which would require a band being placed above 7.6 m (not possible to safely place and remeasure bands at this height with the available ladder and personnel), or large lianas or strangler figs affixed so closely to the trunk that a band could not be placed underneath them and that a band above them would not provide useful information on tree growth. In the case of multi-stemmed individuals, bands were placed on all stems above 5 cm if the biggest stem qualified for inclusion, and smaller stems were measured with calipers.
Dendrometer censuses were initially conducted twice per year, at the beginning of the wet season (May-June) and end of the wet season (November-December). However, the early wet season censuses often showed shrinkage of trees from the previous late wet season measurements. Biweekly remeasurements of another smaller sample of trees on the nearby AVA plot showed that dry season shrinkage was common in many trees, and that many did not recover to their previous dbh until well into the wet season. Thus for the purposes of annual growth measurements, it was decided to abandon the early wet season measurements starting in 2019.
Tree measurements and observations followed the protocol at https://figshare.com/s/00d6ba1e9f113bcf3ac3
The calculation of dbh from the band dendrometer data follows the procedure described at
https://figshare.com/s/43e3375f6614253a8bdd</p
Library & Information Science Journal Editors' Views on Query Letters
No full textSupplemental content for this article can be found here: http://hdl.handle.net/1811/92283Query letters may offer an effective way to increase author engagement in the scholarly communication process, yet they are not a common practice in library and information science (LIS). A survey and interviews were conducted with LIS journal editors to explore experiences, attitudes, and opinions concerning query letters. Results indicate query letters can be of great benefit to both authors and editors, if approached properly. Yet, editors expressed varying levels of enthusiasm and offered some divergent opinions. Such editorial inconsistencies may contribute to authors' uncertainty and anxiety. Thus, this article concludes with ideas for empowering authors and improving editor-author communication.Publisher allows immediate open acces
Changing genes: Science and being Maori
No full textThis commentary follows tangential lines of reason stimulated by Hook‟s thought- provoking paper, “Warrior genes” and the disease of being Māori (2009), to question the ethical responsibilities of scientists to the public in modern society
The Impact of strategic implementation on the employees and contractors of the Hewlett-Packard Company.
No full textConducted within the global corporation of the Hewlett-Packard Company, (HP),this research examines employee and contractor responses to strategic implementation. The research environment is a relatively small UK group withinthe corporation that has continuously experienced significant change as new strategies were implemented. Employee and contractor responses to three separate cycles of change are analysed together with data drawn from the wider corporation by using a psychological contract framework, semi-structured interviewing, a research diary and secondary data from the literature and electronic sources. The research is essentially qualitative but draws on quantitative data where appropriate. A case study approach within an action research paradigm is the chosen methodology to allow consideration and triangulation of multiple sources of data relevant to the natural workplace setting. The research has confirmed a change from old or original psychological contracts to new contracts where employees and contractors are more insecure in, and more cynical of, their employment. This change is perceived as a
violation of their psychological contract and is causing employees and contractors to adopt a more mercenary approach to their employment with HP. The special bond between HP and its employees generated by the values and
egalitarian working environment created by its founders has been broken by new leadership. Acquisition of the Compaq Computer Company has further impacted employees and contractors resulting in declining morale and increasing scepticism about its proposed benefits. Indeed the very legitimacy of the acquisition and the leadership of HP are being questioned as HP changes to a new form. According to the founders, the values established that made HP successful in its first fifty years were expected to continue for at least another fifty years. This research shows how changing these values has collectively impacted
employees and contractors resulting in a major threat to the continuing existence of HP in its present form
A layered approach towards domain authoring support
No full textThis paper presents an approach to authoring support for Web courseware based on a layered ontological paradigm. The ontology-based layers in the courseware authoring architecture serve as a basis for formal semantics and reasoning support in performing generic authoring tasks. This approach represents an extension of our knowledge classification and indexing mechanism from a previously developed system, AIMS, aimed at supporting students while completing learning tasks in a Web-based learning/training environment. We propose the addition of two vertical layers in the system architecture, Author assisting layer and Operational layer, with the role of facilitating the creation of the ontological layers (Course ontology and Domain ontology) and of the educational metadata layer. Here we focus on the domain ontology creation process, together with the support that the additional layers can provide within this process. We exemplify our method by presenting a set of generic tasks related to concept-based domain authoring and their ontological support
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