199 research outputs found
A diel method of estimating gross primary production: 1. Validation with a realistic numerical model of Chesapeake Bay
No full textAuthor Posting. © American Geophysical Union, 2018. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 123(11), (2018): 8411-8429, doi: 10.1029/2018JC014178.A method for estimating gross primary production (GPP) is presented and validated against a numerical model of Chesapeake Bay that includes realistic physical and biological forcing. The method statistically fits a photosynthesis‐irradiance response curve using the observed near‐surface time rate of change of dissolved oxygen and the incoming solar radiation, yielding estimates of the light‐saturated photosynthetic rate and the initial slope of the photosynthesis‐irradiance response curve. This allows estimation of GPP with 15‐day temporal resolution. The method is applied to the output from a numerical model that has high skill at reproducing both surface and near‐bottom dissolved oxygen variations observed in Chesapeake Bay in 2013. The rate of GPP predicted by the numerical model is known, as are the contributions from physical processes, allowing the proposed diel method to be rigorously assessed. At locations throughout the main stem of the Bay, the method accurately extracts the underlying rate of GPP, including pronounced seasonal variability and spatial variability. Errors associated with the method are primarily the result of contributions by the divergence in turbulent oxygen flux, which changes sign over the surface mixed layer. As a result, there is an optimal vertical location with minimal bias where application of the method is most accurate.This paper is the result of research funded in part by NOAA's U.S. Integrated Ocean Observing System (IOOS) Program Office as a subcontract to the Woods Hole Oceanographic Institution under award NA13NOS120139 to the Southeastern University Research Association. All of the model output, as well as both the CBIBS data (2010–2016) and the bottom oxygen data of Scully (2016b), are publicly available through the THREDDS server associated with the IOOS Coastal Modeling Testbed site: https://comt.ioos.us/projects/cb_hypoxia.2019-05-2
Understanding Oregonians' coastal values and priorities through participatory GIS mapping
No full textKaegan Scully-Engelmeyer, Dr. Elise Granek, Dr. Max Nielsen-Pincus, Portland State University, Department of Environmental Science & Management ; conducted for and in cooperation with Oregon Department of Fish and Wildlife, Oregon Marine Reserves Program with help from Oregon SeaGrant.Title from PDF cover (viewed on March 22, 2021).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 25-27).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
AN APPLICATION OF THE KEKUL\'E MODEL TO A CONDENSED AROMATIC SYSTEM: NAPHTHALENE
No full textScully, D. B. and Whiffen, D. H., Spectrochim, Acta 16, 1409 (1961). Freeman, D. E. and Ross, I. G. Spectrochim, Acta 16, 1393 (1961).Author Institution: Chemical Physics Research Laboratory, The Dow Chemical CompanyAn extension of the Urey-Bradley force field for aromatic rings has been applied to a calculation of the planner vibration fundamentals of naphthalene, using only sixteen force constants transferred from benzene. The results of a zero-order calculation are compared with those obtained from an unmodified UBFF and these are in turn, compared with the assignments proposed by Scully and and Freeman and $Ross.^{2}
Intercalation of polypyrrole into graphite oxide
No full textIn this paper we report on the insertion of polypyrrole into layered graphite oxide. This was achieved by using the exfoliating and re-stacking properties of the host. The resulting intercalated product was characterized by powder X-ray diffraction, FT-IR spectroscopy, thermogravimetric analysis and scanning electron microscopy. (c) 2006 Elsevier B.V. All rights reserved.PT: J; CR: *ACS, 1996, ACS SYM SER, P622 BISSESSUR R, 2001, CHEM COMMUN 0907, P1598 BISSESSUR R, 2003, J MATER CHEM, V13, P44 BISSESSUR R, 2004, J MATER SCI, V39, P119 CASSAGNEAU T, 1998, ADV MATER, V10, P877 CASSAGNEAU T, 2000, LANGMUIR, V16, P7318 DING RF, 2003, POLYM DEGRAD STABIL, V81, P473 HUMMERS WS, 1958, J AM CHEM SOC, V80, P1339 KANATZIDIS MG, 1993, CHEM MATER, V5, P595 KOVTYUKHOVA NI, 1999, CHEM MATER, V11, P771 LIU ZH, 2002, LANGMUIR, V18, P4926 MATSUO Y, 1997, CARBON, V35, P113 MATSUO Y, 1998, CHEM MATER, V10, P2266 MATSUO Y, 2002, J MATER CHEM, V12, P1592 NAKAJIMA T, 1988, CARBON, V26, P357 WANG L, 1995, CHEM MATER, V7, P1753 WU CG, 1989, POLYM MATER SCI ENG, V61, P969 XIAO M, 2002, POLYMER, V43, P2245 XIAO P, 2000, CARBON, V38, P623; NR: 19; TC: 0; J9: SYNTHET METAL; PG: 5; GA: 093UXSource type: Electronic(1
The influence of Dexmedetomidine as an additive to local anesthetics in dental procedures: a systematic review
No full textThis review aimed to assess if the use of dexmedetomidine as an additive to local anesthetics promotes greater safety and efficacy than local anesthetics alone in dental procedures. the systematic review was structured according to the PICO strategy and adhered to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) checklist. Studies were included based on the eligibility criteria, and data from the included studies were collected by one author. An additional author reviewed the compilation. Altogether, nine studies were included: eight randomized clinical trials and one controlled clinical trial. Of these, six were related to tooth extraction. Most studies reported the use of lidocaine as the local anesthetic. Levobupivacaine was used in one study. In total, 352 patients were evaluated. Despite the heterogeneity between studies, it can be suggested that when used as an additive to local anesthetics, dexmedetomidine has the potential to decrease postoperative pain and latency period and prolong anesthetic duration.Conclusion: There are scant reviews that summarizes the effectiveness of dexmedetomidine as an adjuvant to local anesthetics. These studies can positively impact the lives of the concerned population
Competitive Balance in Dutch Soccer
No full textMost sports are interesting because the outcome of a game cannot be predicted perfectly in advance. Indeed, sometimes sports organizations try to maximize the uncertainty associated with the outcomes of the games by restricting the behaviour of teams and players so as to maximize public interest. The degree of competitiveness in a league is also known as competitive balance. In this paper we propose a simple model analyze the outcome of soccer matches. The parameters of this model are used to assess whether comeptitive balance in Dutch soccer has decreased or increased over time.professional soccer, competitive balance, ordered probit
The Marine Living Resources of the Southern Ocean
No full textThe author suggests that the abundance of marine life in Antarctica presents ample opportunity both for scientific study and for exploitation. The author provides a survey of the distinct ecological system of the Southern Ocean through his discussion of the main marine species-from the simple organisms involved in primary production to the large marine mammals which have been subject to exploitation in the past. His primary emphasis is on krill, the small, shrimp-like crustacean which serves as the pivotal link in the Antarctic food chain. The abundance of krill, its high nutritive value and its ease of harvesting are factors which the author perceives as according krill significant potential for exploitation. At the same time, he identifies economic and technical obstacles which must be overcome if commercial krill harvesting is to develop
Beyond the digital diva: women on the World Wide Web
No full textIn the year 2000, American researchers reported that women constituted 51 percent of Internet users. This was a significant discovery, as throughout the medium's history, women were outnumbered by men as both users and builders of sites. This thesis probes not only this historical moment of change, but how women are mobilising the World Wide Web in their work, leisure and lives.
Not considered in the '51% of American women now online' headline is the lack of women engaged in Web building rather than Web shopping. In technical fields relating to the Web, women are outnumbered and marginalized, being poorly represented in computer-related college and university courses, in careers in computer science and computer programming, and also in digital policy. This thesis identifies the causes for the low number of women in these spheres. I consider the social and cultural reasons for their exclusion and explore the discourses which operate to discourage women's participation.
My original contribution to knowledge is forged as much through how this thesis is written as by the words and footnotes that graze these pages. With strong attention to methodology in Web-based research, I gather a plurality of women's voices and experiences of under-confidence, humiliation and fear. Continuing the initiatives of Dale Spender's Nattering on the Net, I research women's use of the Web in placing a voice behind the statistics. I also offer strategies for digital intervention, without easy platitudes to the 'potential' for women in the knowledge economy or through Creative Industries strategies.
The chapters of this thesis examine the contexts in which exclusionary attitudes are created and perpetuated. No technology is self-standing: we gain information about 'new' technologies from the old. I investigate representations and mediations of women's relationship to the Web in fields including the media, the workplace, fiction, the Creative Industries and educational institutions. For example, the media is complicit in causing women to doubt their technological capabilities. The images and ideologies of women in film, newspapers and magazines that present computer and Web usage are often discriminatory and derogatory. I also found in educational institutions that patriarchal attitudes privilege men, and discourage female students' interest in digital technologies. I interviewed high school and university students and found that the cultural values embedded within curricula discriminate against women. Limitations in Web-based learning were also discovered.
In discussing the cultural and social foundations for women's absence or under-confidence in technological fields, I engage with many theories from a prominent digital academic: Dale Spender. In her book Nattering on the Net: Women, Power and Cyberspace, Spender's outlook is admonitory. She believes that unless women acquire a level of technological capital equal to their male counterparts, women will continue to be marginalised as new political and social ideologies develop. She believes women's digital education must occur as soon as possible. While I welcome her arguments, I also found that Spender did not address the confluence between the analogue and the digital. She did not explore how the old media is shaping the new. While Spender's research focused on the Internet, I ponder her theses in the context of the World Wide Web.
In order to intervene in the patriarchal paradigm, to move women beyond digital shoppers and into builders of the digital world, I have created a website (included on CD-ROM) to accompany this thesis's arguments. It presents links to many sites on the Web to demonstrate how women are challenging the masculine inscriptions of digital technology. Although the website is created to interact directly with Chapter Three, its content is applicable to all parts of the thesis.
This thesis is situated between cultural studies and internet studies. This interdisciplinary dialogue has proved beneficial, allowing socio-technical research to resonate with wider political applications. The importance of intervention - and the need for change - has guided my words. Throughout the research and writing process of this thesis, organisations have released reports claiming gender equity on the Web. My task is to capture the voice, views and fears of the women behind these statistics
Oral aphthous ulcers associated with orlistat
No full text[No abstract available][Anonymous], MICROMEDEX HEALTHCAR; Genentech, XEN ORL PACK INS; Messadi DV, 2010, DERMATOL THER, V23, P281, DOI 10.1111-j.1529-8019.2010.01324.x; NARANJO CA, 1981, CLIN PHARMACOL THER, V30, P239; Scully C, 1998, MED PROBLEMS DENT22
“you say… i hear…": Epistemic gaps in practitioner-parent/carer talk
No full text© The Author(s) 2018. • Policy guidance has often focused on the need for strong partnerships between parents/carers and practitioners to support the learning of children labelled with Special Educational Needs and/or Disabilities (SEND). • Despite this policy focus, relationships between parents/carers and practitioners are often difficult. • This chapter explores the nature of these difficulties drawing on the work of Lipsky (1971) and McKenzie and Scully (2007). • In conclusion, there are suggestions for how partnership working between parents/carers, practitioners and children might be developed
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