234 research outputs found

    THE FEASIBILITY OF LOW COST AIRLINES IN KAOHSIUNG, SOUTHERN CITY OF TAIWAN

    Get PDF
    The budget airlines have caused tremendous impact in air business and travel population. Even though the budget airlines in Europe and USA are already quite popular, the budget airlines are still new in Taiwan. Pearson (2014) suggested that LCCs now are growing particularly within Asia-Pacific. Since then, there have been many studies about LCCs strategies or models, or the competitions between full-service airlines, but few have focused on the relationship between geographical locations and budget airline routes. That is, whether the LCCs’ flying routines, almost on local city or sub-airports, will help the prosperous tourism business of the local city, Kaohsiung City, a southern city of Taiwan

    Institutional Investors and Corporate Environmental, Social, and Governance Policies: Evidence from Toxics Release Data

    Get PDF
    This paper studies the role of institutional investors in influencing corporate environmental, social, and governance (ESG) policies by analyzing the relation between institutional ownership and toxic release from facilities to which institutions are geographically proximate. We develop a local preference hypothesis based on the delegated philanthropy and transaction-costs theories. Consistent with the hypothesis, local institutional ownership is negatively related to facility toxic release. The negative relation is stronger for local socially responsible investing (SRI) funds, local public pension funds, and local dedicated institutions. We also find that the relation is more negative in communities that prefer more stringent environmental policies and in communities of greater collective cohesiveness. Local institutional ownership, particularly local ownerships by SRI funds and public pension funds, is positively related to the probability that an ESG proposal is either introduced or withdrawn. The paper sheds light on the drivers behind institutions’ ESG engagement and their effectiveness in influencing ESG

    Spatial Analysis of Baseline Data of Surface Soil and Landcover Classes of the North Etiwanda Preserve after Five Years of Drought Stress (2011-2015) in a Mediterranean Climate Region in Southern California.

    Get PDF
    The North Etiwanda Preserve (NEP) is a conservation area in a Mediterranean climate located in Southern California. This study focused on surface soil characters at the NEP to understand the soil stability and to find the erosion rate as well as the surface soil condition and the coverage of vegetation communities of the preserve area after five years of drought stress. Digitized main habitat types and areas as well as enhanced raster images were used to create landcover maps to display the vegetation composition of each habitat. A geodatabase was created to map the landcover maps. The vegetation was identified and data was collected using the point intercept method at 1-meter intervals on the 12-meter transects. Soil samples from 36 sampling sites were collected and were tested for soil parameters (soil structure, texture, temperature, pH value, soil water % weight, bulk density, CEC, etc.). Quality control of the maps was done by comparing the mapped classes with field surveys and soil lab results. The user’s accuracy of the produced landcover class maps was 86.4 %. The canopy percentage coverage of plant communities and of dominant species were calculated. The surface soil run-off volume of each surveyed location was calculated using the Universal Soil Loss Equation: A = RKLSCP. The NEP had shallow soil organic layers and low CEC. Hot spots of soil erosion were located along the fire break area. Soil erosion rate was higher within the burned area when compared to the east side of the preserve where vegetation communities were at the mature successional stage. The surface soil condition of the NEP are strongly influenced by vegetation types and the litter/wood cover.The pioneer vegetation communities mainly grew within the disturbed areas, which were vulnerable to soil erosion and changes of successional stage

    PEARL: Personalizing Large Language Model Writing Assistants with Generation-Calibrated Retrievers

    Full text link
    Powerful large language models have facilitated the development of writing assistants that promise to significantly improve the quality and efficiency of composition and communication. However, a barrier to effective assistance is the lack of personalization in LLM outputs to the author's communication style and specialized knowledge. In this paper, we address this challenge by proposing PEARL, a retrieval-augmented LLM writing assistant personalized with a generation-calibrated retriever. Our retriever is trained to select historic user-authored documents for prompt augmentation, such that they are likely to best personalize LLM generations for a user request. We propose two key novelties for training our retriever: 1) A training data selection method that identifies user requests likely to benefit from personalization and documents that provide that benefit; and 2) A scale-calibrating KL-divergence objective that ensures that our retriever closely tracks the benefit of a document for personalized generation. We demonstrate the effectiveness of PEARL in generating personalized workplace social media posts and Reddit comments. Finally, we showcase the potential of a generation-calibrated retriever to double as a performance predictor and further improve low-quality generations via LLM chaining.Comment: Pre-print, work in progres

    Determinants of fish consumption in older people: a community-based cohort study

    Get PDF
    Objectives: Habitual fish consumption and its determinants in older people have not been well investigated. We addressed these issues through a population-based cohort study. Methods: In 2001-2003 we interviewed a random sample of 3336 residents aged ≥60 years in China, documenting socioeconomic status (SES) and disease risk factors. In 2007-2009 we re-interviewed 1757 survivors, additionally surveying average self-reported intake of fish over the past two years. Results: Of 1757 participants, 1697 responded to the fish consumption questionnaire; 23.0% of whom had “never eat” fish, 43.4% “once a week”, 26.9% “more than twice a week”, and 6.7% “≥once a day”. There was an inverse association of fish consumption with older age (multivariate adjusted odds ratio 0.64 [95% CI 0.45-0.92] and 0.35 [0.24-0.52] at ages of 75-79, and ≥80 years), female gender (0.63, 0.47-0.84), smoking (0.65, 0.48-0.88), living in a rural area (0.10, 0.07-0.15), having educational level of ≤primary school (0.10, 0.05-0.19), occupation of peasant (0.08, 0.05-0.14), low income (0.11, 0.07-0.18), financial difficulties (0.25, 0.18-0.34), being never married/divorced (0.48, 0.28-0.81), having undetected hypertension (0.71, 0.55-0.91), depression (0.50, 0.29-0.84) and dementia (0.64, 0.41-0.98). However, participants with central obesity and heart disease at baseline had increased odds of fish consumption. Separate data analysis for different levels of fish consumption showed a dose-response trend for these associations. Conclusion: In older Chinese, there are large socioeconomic inequalities, and certain lifestyle, psychosocial factors and health-related conditions are strong determinants of fish consumption. Such information is important for future development or refinement of effective dietary interventions targeting older adults

    Pan-Cancer Analysis of lncRNA Regulation Supports Their Targeting of Cancer Genes in Each Tumor Context

    Get PDF
    Long noncoding RNAs (lncRNAs) are commonly dys-regulated in tumors, but only a handful are known toplay pathophysiological roles in cancer. We inferredlncRNAs that dysregulate cancer pathways, onco-genes, and tumor suppressors (cancer genes) bymodeling their effects on the activity of transcriptionfactors, RNA-binding proteins, and microRNAs in5,185 TCGA tumors and 1,019 ENCODE assays.Our predictions included hundreds of candidateonco- and tumor-suppressor lncRNAs (cancerlncRNAs) whose somatic alterations account for thedysregulation of dozens of cancer genes and path-ways in each of 14 tumor contexts. To demonstrateproof of concept, we showed that perturbations tar-geting OIP5-AS1 (an inferred tumor suppressor) andTUG1 and WT1-AS (inferred onco-lncRNAs) dysre-gulated cancer genes and altered proliferation ofbreast and gynecologic cancer cells. Our analysis in-dicates that, although most lncRNAs are dysregu-lated in a tumor-specific manner, some, includingOIP5-AS1, TUG1, NEAT1, MEG3, and TSIX, synergis-tically dysregulate cancer pathways in multiple tumorcontexts

    Pan-cancer Alterations of the MYC Oncogene and Its Proximal Network across the Cancer Genome Atlas

    Get PDF
    Although theMYConcogene has been implicated incancer, a systematic assessment of alterations ofMYC, related transcription factors, and co-regulatoryproteins, forming the proximal MYC network (PMN),across human cancers is lacking. Using computa-tional approaches, we define genomic and proteo-mic features associated with MYC and the PMNacross the 33 cancers of The Cancer Genome Atlas.Pan-cancer, 28% of all samples had at least one ofthe MYC paralogs amplified. In contrast, the MYCantagonists MGA and MNT were the most frequentlymutated or deleted members, proposing a roleas tumor suppressors.MYCalterations were mutu-ally exclusive withPIK3CA,PTEN,APC,orBRAFalterations, suggesting that MYC is a distinct onco-genic driver. Expression analysis revealed MYC-associated pathways in tumor subtypes, such asimmune response and growth factor signaling; chro-matin, translation, and DNA replication/repair wereconserved pan-cancer. This analysis reveals insightsinto MYC biology and is a reference for biomarkersand therapeutics for cancers with alterations ofMYC or the PMN

    Genomic, Pathway Network, and Immunologic Features Distinguishing Squamous Carcinomas

    Get PDF
    This integrated, multiplatform PanCancer Atlas study co-mapped and identified distinguishing molecular features of squamous cell carcinomas (SCCs) from five sites associated with smokin
    corecore