Carbon Flux Phenology from the Sky: Evaluation for Maize and Soybean

Carbon flux phenology is widely used to understand carbon flux dynamics and surface exchange processes. Vegetation phenology has been widely evaluated by remote sensors; however, very few studies have evaluated the use of vegetation phenology for identifying carbon flux phenology. Currently available techniques to derive net ecosystem exchange (NEE) from a satellite image use a single generic modeling subgroup for agricultural crops. But, carbon flux phenological processes vary highly with crop types and land management practices; this paper reexamines this assumption. Presented here are an evaluation of ground-truth remotely sensed vegetation indices with in situ NEE measurements and an identification of vegetation indices for estimating carbon flux phenology metrics by crop type. Results show that the performance of different vegetation indices as an indicator of phenology varies with crop type, particularly when identifying the start of a season and the peak of a season. Maize fields require vegetation indices that make use of the near-infrared and red reflectance bands, while soybean fields require those making use of the shortwave infrared (IR) and near-IR bands. In summary, the study identifies how to best utilize remote sensing technology as a crop-specific measurement tool

Dental Hygienists\u27 Contributions to Improving the Nation\u27s Oral Health Through School-Based Initiatives from 1970 Through 1999: A Historical Review

PURPOSE: The purpose of this literature review is to document the contributions dental hygienists have made over the past 3 decades to improve the nation\u27s oral health. This historical review encompasses selected literature that acknowledged dental Hygienists\u27 direct involvement in U.S. school-based or school-linked oral health programs from 1970-1999. METHODS: Five researchers independently searched MEDLINE, PubMed, and other electronic databases to identify relevant literature for the years 1970-1999. The search aimed to locate articles authored by or that documented dental Hygienists\u27 involvement as service provider in U.S. school-based oral health programs. For the purpose of this review, service provider was defined as educator, administrator, clinician, examiner, or any other unspecified service performed by a dental hygienist. RESULTS: Fifty-seven articles were retrieved, of which 36 (63%) directly linked dental hygienists to U.S. school-based activities. Twenty-seven articles specifically identified dental hygienists as service providers. Dental hygienists were listed as either primary or contributing author on 19 of these articles. CONCLUSION: The decade of the 1970s revealed very little literature documenting dental Hygienists\u27 involvement in U.S. school-based oral health programs. The 1970s, however, were instrumental in laying the foundation for service in the years that followed. As public health initiatives expanded in the 1980s, dental hygienists were identified in the largest number of papers as key personnel in the areas of education, management, service provider, and author. The decade of the 1990s yielded less literature than the 1980s, yet recognized dental Hygienists\u27 involvement in all aspects of oral health care delivery, program development and management, and authorship. The authors of this review theorize that dental hygienists were engaged in more school-based programs than reported and were involved in the authorship process more frequently than documented. Due to lack of credentials, or the omission of the words dental hygienist, RDH, or LDH, in favor of health care provider, auxiliary, or trained health care educator, it is unknown what portion of contributions made by dental hygienists remain undocumented

The impact of community expectations on corporate community involvement disclosures in the UK

Despite increase mistrust between corporations and societies in the aftermath of the global corporate misbehaviours, the literature examining the impact of community concerns on corporate communications is undeveloped. Our paper is timely; it contributes to the literature on corporate social responsibility (CSR) by considering the impacts of community expectations on Corporate Community Involvement Disclosures (CCID) using a ten-year panel study. We advance CSR communication research by providing a fresh theoretical perspective – media-agenda-setting theory – to the broad CSR debate and the CCID subset of this debate. Our findings support the media-agenda theoretical expectation and provide important practice and policy recommendations for improving interactions between corporations and their communities

A kapwa-infused paradigm in teaching Catholic theology/catechesis in a multireligious classroom in the Philippines

The increasing religious diversity in educational space has raised a legitimate question on how Catholic theology/ catechesis must be taught in Philippine Catholic universities given the institutional mandate to educate students “into the faith of the Church through teaching of Christian doctrine in an organic and systematic way” (Wuerl, 2013, 1). On this note, the paper makes reference to “centered plural- ism” (CP), a positional posture espoused by Georgetown University in dealing with this predicament. In an attempt to (re) appropriate CP into local context, there is a need to explore the Filipino conception of self/others as enveloped within the indigenous concept of kapwa. Hereon, the paper finds that CP is not just feasibly suitable in local context but with kapwa's more inclusive description of the relationship of self and others, a CP‐based teaching paradigm in theology/ catechesis is a promising project in the educational scene of the Philippines

Policy ideas through the prism of knowledge regimes and framing

Policymakers are often confronted with problems that involve ambiguity and uncertainty (Zahariadis, 2003). In order to make sense of such problems and to identify possible solutions, they are on the lookout for policy ideas

Redox-responsive branched-bottlebrush polymers for \u3ci\u3ein vivo\u3c/i\u3e MRI and fluorescence imaging

Stimuli-responsive multimodality imaging agents have broad potential in medical diagnostics. Herein, we report the development of a new class of branched-bottlebrush polymer dual-modality organic radical contrast agents—ORCAFluors—for combined magnetic resonance and near-infrared fluorescence imaging in vivo. These nitroxide radical-based nanostructures have longitudinal and transverse relaxation times that are on par with commonly used heavy-metal-based magnetic resonance imaging (MRI) contrast agents. Furthermore, these materials display a unique compensatory redox response: fluorescence is partially quenched by surrounding nitroxides in the native state; exposure to ascorbate or ascorbate/glutathione leads to nitroxide reduction and a concomitant 2- to 3.5-fold increase in fluorescence emission. This behaviour enables correlation of MRI contrast, fluorescence intensity and spin concentration with tissues known to possess high concentrations of ascorbate in mice. Our in vitro and in vivo results, along with our modular synthetic approach, make ORCAFluors a promising new platform for multimodality molecular imaging