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Search Results: 1 - 10 of 5093 matches for " Christine "
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Reducing Land Degradation on the Highlands of Kilimanjaro Region: A Biogeographical Perspective  [PDF]
Christine Noe
Open Journal of Soil Science (OJSS) , 2014, DOI: 10.4236/ojss.2014.413043

In 2012, governments across the world adopted “The Future We Want” outcome document in Rio De Janeiro as a commitment to achieve a land-degradation-neutral world. This document reasserts the importance of sustainable land management in the top of the debates on sustainable development. This paper provides an overview of Tanzania’s preparedness towards achieving these global objectives. The paper is based on a keynote address which was presented in the conference on reducing land degradation on the highlands of Kilimanjaro Region in Tanzania. Using a biogeographical perspective, the paper assesses challenges of adopting programmatic approach to sustainable land management in Tanzania. It also presents some opportunities that exist through Global Mechanism of the United Nations Convention to Combat Desertification, which promote actions leading to coordination, mobilization and channeling of financial resources to assist member countries to coordinate and sustain sustainable land management projects.

Compressors for Hyper-Sonic Engines —A Theoretical Study of Future Compressors for Hyper Sonic Engines  [PDF]
Christine Cherian
Advances in Aerospace Science and Technology (AAST) , 2018, DOI: 10.4236/aast.2018.34007
This paper is an eye opening to the new horizon of the design of operational Compressors in our jet engines. That are compressors usually perform an operation called isentropic process and which levitate the pressure and temperature to the optimum level which require for effective ignition. Basically, our compressors have several sets of blades to perform this function, more precisely saying Rotor and stator blades. Where rotor blade provides air molecule to push at very high velocity to the Stationary blade and when the air Enders to the Stator, the stator races its pressure to move on to the next stage. And we call this set of Stator and rotor as a stage ref [1]. However, in this work, I consider the geometry of the incoming air molecule and how it transforms its physical quantities such as Pressure and temperature ref [2]. For that I tie the concept of Thermodynamic and mechanics on the platform of Tensor analysis ref [3]. That is, I consider the quantities like Pressure, Temperature and rate of flow are their corresponding vector spaces and energy related quintets like heat, work as the scaling elements on the above vector space. And quantities such as entropy enthalpy and specific heat capacity are corresponding physics of it. Considering the advantages, one of the important advantages of this approach is the applicability of results of this work to the formulation of blade less compression Example: Ram and Scram jet engine. Again, the relevant upgrading which is essential for future hypersonic air crafts can achieve from this study and this will be a mile stone for bright air and space travel. To conclude, this approach will be a great transformation on the conventional idea for realization of compression for operational Scram and Ram jet engines ref [4] [5].
Net Neutrality: Media Discourses and Public Perception
Christine Quail,Christine Larabie
Global Media Journal : Canadian Edition , 2010,
Abstract: This paper analyzes media and public discourses surrounding net neutrality, with particular attention to public utility philosophy, from a critical perspective. The article suggests that further public education about net neutrality would be beneficial. The first portion of this paper provides a survey of the existing literature surrounding net neutrality, highlighting the contentious debate between market-based and public interest perspectives. In order to contextualize the debate, an overview of public utility philosophy is provided, shedding light on how the Internet can be conceptualized as a public good. Following this discussion, an analysis of mainstream media is presented, exploring how the media represents the issue of net neutrality and whether or not the Internet is discussed through the lens of public utility. To further examine how the net neutrality debate is being addressed, and to see the potential impacts of media discourses on the general public, the results of a focus group are reported and analyzed. Finally, a discussion assesses the implications of the net neutrality debate as presented through media discourses, highlighting the future of net neutrality as an important policy issue.
Intrinsic Motivation and Real Individual Piecewise Linear Wages  [PDF]
Marie-Christine Thaize Challier
Modern Economy (ME) , 2011, DOI: 10.4236/me.2011.23038
Abstract: This paper presents a simple framework for understanding the prevalence of basic piecewise linear wages in the real world. It extends the analysis of individual piecewise linear wages to environments in which the participation constraint is reinforced by intrinsic motivations. It identifies a class of “acceptable” piecewise linear wages verifying both this reinforced participation constraint and the adverse selection constraint. Among them, it restricts the characterization to a class of real-world wages. Through the advantages and drawbacks of certain acceptable piecewise linear wages, it helps explaining why they are common in the real world even if they are not optimal.
Examining the Relationship between Hope and Attachment: A Meta-Analysis  [PDF]
John Blake, Christine Lynn Norton
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.56065

The authors report quantitative findings from a meta-analysis of studies investigating the relationship between attachment style, grounded in theory developed by Bowlby and Ainsworth; and Snyder’s theoretical model of hope (Ainsworth & Bowlby, 1991; Snyder, 1994). Statistically significant results provide support for further investigation of clinical value of the attachment/hope dynamic as an effective heuristic for conceptualizing human development, behavior and the therapeutic process.

A Systematic Review of Cultural Preferences for Receiving Medical “Bad News” in the United States  [PDF]
Christine Larkin, H. Russell Searight
Health (Health) , 2014, DOI: 10.4236/health.2014.616251
Abstract: According to the dominant models of medical ethics in the United States and many Western countries, physician disclosure of information such as diagnosis, treatment options, and prognosis is considered an essential precondition for patient informed consent. While being consistent with the principle of patient autonomy stressed in many Western healthcare systems, full disclosure—particularly of life-threatening diagnoses and poor prognoses—is inconsistent with the cultural values of many ethnic communities within the United States. A systematic review of research examining cultural preferences for disclosure of medical “bad news” was conducted. Results suggested that cultural preferences are more heterogeneous than has often been portrayed. Particularly when communicating with patients and families from culturally and ethnically diverse backgrounds, health care professionals should ask about preferences for receiving medical information and making treatment decisions.
Recent Advances in Potential Clinical Application of Ghrelin in Obesity
Christine Delporte
Journal of Obesity , 2012, DOI: 10.1155/2012/535624
Abstract: Ghrelin is the natural ligand of the growth hormone secretagogue receptor (GHS-R1a). Ghrelin is a 28 amino acid peptide possessing a unique acylation on the serine in position 3 catalyzed by ghrelin O-acyltransferase (GOAT). Ghrelin stimulates growth hormone secretion, but also appetite, food intake, weight gain, and gastric emptying. Ghrelin is involved in weight regulation, obesity, type 2 diabetes, and metabolic syndrome. Furthermore, a better understanding of ghrelin biology led to the identification of molecular targets modulating ghrelin levels and/or its biological effects: GOAT, ghrelin, and GHS-R1a. Furthermore, a recent discovery, showing the involvement of bitter taste receptor T2R in ghrelin secretion and/or synthesis and food intake, suggested that T2R could represent an additional interesting molecular target. Several classes of ghrelin-related pharmacological tools for the treatment of obesity have been or could be developed to modulate the identified molecular targets.
Interesting Structures: Education and Outreach at the RCSB Protein Data Bank
Christine Zardecki
PLOS Biology , 2012, DOI: 10.1371/journal.pbio.0060117
Branching Processes: Their Role in Epidemiology
Christine Jacob
International Journal of Environmental Research and Public Health , 2010, DOI: 10.3390/ijerph7031204
Abstract: Branching processes are stochastic individual-based processes leading consequently to a bottom-up approach. In addition, since the state variables are random integer variables (representing population sizes), the extinction occurs at random finite time on the extinction set, thus leading to fine and realistic predictions. Starting from the simplest and well-known single-type Bienaymé-Galton-Watson branching process that was used by several authors for approximating the beginning of an epidemic, we then present a general branching model with age and population dependent individual transitions. However contrary to the classical Bienaymé-Galton-Watson or asymptotically Bienaymé-Galton-Watson setting, where the asymptotic behavior of the process, as time tends to infinity, is well understood, the asymptotic behavior of this general process is a new question. Here we give some solutions for dealing with this problem depending on whether the initial population size is large or small, and whether the disease is rare or non-rare when the initial population size is large.
Repetitive elements in parasitic protozoa
Christine Clayton
BMC Biology , 2010, DOI: 10.1186/1741-7007-8-64
Abstract: See research article http://www.biomedcentral.com/1471-2164/11/321 webciteThe genomes of eukaryotes contain numerous types of repetitive element with a wide variety of functions. Some are within coding regions; others are in untranslated regions of mRNAs or are located in regions that are important for chromosome maintenance; and many may have no function at all beyond self-perpetuation. Repetitive elements fall into three broad classes. Simple repeats can change in copy number, but do not move to new locations; DNA 'cut-and-paste' transposons are able to 'jump' to a new location; and retroposons move via an RNA intermediate, leaving an intact retroposon at the original location. Changes in the numbers, or locations, of repetitive elements can alter the structures of proteins, influence gene expression and affect chromosome segregation and karyotypes. Repetitive elements are therefore significant drivers of diversity.There is currently little direct evidence for active transposition of the elements present in the genomes of parasitic protists but a genome-wide bioinformatic screen of the sequenced genome of the gut parasite Entamoeba histolytica published recently in BMC Genomics by Huntley et al. [1] has found indirect evidence of recent transposition events involving the SINE (short interspersed nuclear element) class of retroposon.The numbers of simple repeats and transposons in the genomes of parasitic protists vary considerably, with estimates of the proportion of repetitive DNA in genomes varying from 11% to 65%. These numbers are unreliable, however, as repetitive regions usually become compressed during alignment, and sequences present in multiple locations cause difficulties in assembly of contiguous chromosomes. Within species, variations between isolates in the numbers of simple repeats, and in the locations of transposable elements, are useful for epidemiological studies. Multicopy sequences are also ideal targets for amplification-based diagnostics.Simp
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