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    7832 research outputs found

    Worker Protective Labor Laws in Hawaiʻi, Part 6: Wrongful Termination

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    This text is an archival document of interpreted Wrongful Termination Laws originally published on the old CLEAR website. At-Will employment and wrongful termination are covered. These legal interpretations and links have not be updated so it is the responsibility of the researcher to fact check

    The Mid-Pleistocene Transition from Budyko’s Energy Balance Model

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    Here we revisit the long-standing question of which dynamical processes were responsible for a change in the dominant periodicity of glacial cycles from 41 to 100 thousand years that occurred roughly 1 million years ago. We investigate this phenomenon, the so-called Mid-Pleistocene Transition (MPT), using an Energy Balance Model (EBM) framework. EBMs are the simplest form of global climate models, allowing for a deeper mathematical analysis to complement the physical understanding gained from more complex higher-dimensional models. We argue that a low-order flip-flop model based on a latitudinally averaged EBM provides new insights into the fundamental dynamics. A recent extension of this EBM adds equations of latitudinally averaged quantities, one for the snow/albedo line, and one for the maximum ice extent. This system of three ordinary differential equations admits glacial cycles with similar spectral characteristics as the proxy records. The period and amplitude of the cycles are controlled by a critical bifurcation parameter. When we include orbital forcing to the model and tune the evolution of the bifurcation parameter to a stack of benthic O records, we observe a transition with similar features to the MPT. The transition follows a mechanism that was recently suggested in the literature: the slow ramping of the internal period via regimes of frequency locking. We demonstrate this clearly by means of a bifurcation analysis using continuation software, which reveals a bifurcation structure primarily organized by Arnold tongues and grazing bifurcations. This work strengthens the case for ramping with frequency locking as a mechanism for the MPT by providing a clear demonstration of the mechanism in a physically-derived model and providing a candidate bifurcation parameter that guides the dynamics through different frequency locking regimes

    Makahaiwaʻa - UH West Oʻahu's Weekly Newsletter - Week of May 30, 2023

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    A Communications Department newsletter from University of Hawai'i - West O'ahu published on Monday, May 30, 2023, to the faculty and staff listserv.A web preservation file has been captured for this newsletter in addition to the PDF. Contact the UHWO Library for access

    Makahaiwaʻa - UH West Oʻahu's Weekly Newsletter - Week of December 04, 2023

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    A Communications Department newsletter from University of Hawai'i - West O'ahu published on Monday, December 04, 2023, to the faculty and staff listserv.A web preservation file has been captured for this newsletter in addition to the PDF. Contact the UHWO Library for access

    Kapiʻo News 2023-04

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    Monthly student newspaper publication of Board of Student Publications, Kapiʻolani Community Colleg

    Kapiʻo News 2023-10

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    Monthly student newspaper publication of Board of Student Publications, Kapiʻolani Community Colleg

    Makahaiwaʻa - UH West Oʻahu's Weekly Newsletter - Week of May 08, 2023

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    A Communications Department newsletter from University of Hawai'i - West O'ahu published on Monday, May 08, 2023, to the faculty and staff listserv.A web preservation file has been captured for this newsletter in addition to the PDF. Contact the UHWO Library for access

    Camera trap distance sampling survey design, Andersen Air Force Base, Guam

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    Reliable population estimates of animal density is one of the most elementary needs for the control and management of wildlife, particularly for introduced ungulates on oceanic islands. On Guam, Philippine deer (Rusa marianna) and wild pigs (Sus scrofa; wild boar and descendants of domestic pigs) cause agricultural and ecological damage and are hunted for recreational, nutritional, and cultural uses. Most common population estimation methods are based on capture-recapture and related methods that require marking or uniquely identifying individuals. Capturing, marking, and either recapturing or resighting individuals repeatedly is labor intensive and expensive. In many situations marking or individually distinguishing animals is not feasible, necessitating estimating densities and abundance from unmarked animal populations. Motion-triggered camera traps are a relatively low-cost approach that can be used to generate presence/pseudo-absence and indices of relative abundance on multiple species simultaneously. We used distance sampling with camera traps to estimate deer and pig densities from non-independent observations of unmarked animals while accounting for imperfect detection where some present individuals are not detected. We present methods to (1) process the digital imagery data automatically for species detection and species categorization using a machine learning algorithm, (2) automatically estimate distance to detected species using a separate machine learning algorithm, and (3) estimate densities using distance sampling with camera trap methods. We compare accuracy statistics and results of ungulate densities estimated from automated methods to those estimated from manual assessment. We collected 7,695 videos: 381 videos contained deer and 377 contained pigs. The object detection and identification model performed well with overall accuracy above 80% and F1 scores above 0.9. The hazard-rate key detection function was chosen for deer and pigs based on Akaike’s information criterion accounting for overdispersion. Deer density estimates were 0.53 ± 0.20 deer/ha with higher density in the Plateau area than the Tarague area of Guam. Pig density estimates were 0.53 ± 0.32 pigs/ha, also with higher densities in the Plateau area than the Tarague area. Coefficients of variation ranged from 0.38 to 1.15, and greater numbers of camera traps would be required for pigs than deer to achieve desired coefficients of variation. On average, 101.9 ± 82.3 deer and 131.6 ± 118.8 pigs were detected per day. Microsite heterogeneity affected densities where orientation-specific estimates were less precise than estimates made with the full dataset. We developed a camera trap survey design based on standard camera trapping sampling protocols using motion-activated, digital cameras and determined that distance sampling methods using camera traps produce reliable densities of unmarked deer and pigs on Guam. Our camera trap survey design is based on a regularly sized trapping grid that is generalizable and can be expanded to survey other areas of Guam

    Makahaiwaʻa - UH West Oʻahu's Weekly Newsletter - Week of January 09, 2023

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    A Communications Department newsletter from University of Hawai'i - West O'ahu published on Monday, January 09, 2023, to the faculty and staff listserv.A web preservation file has been captured for this newsletter in addition to the PDF. Contact the UHWO Library for access

    2023 Annual Report

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    This annual report to ACCJC answers questions regarding student achievement data

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