291 research outputs found
Methods of discharge measurements of streams
The method of determining the discharge of large streams is that in which the area of cross section is multiplied by the velocity per. sec. of the water passing through the section. The velocity can be measured by the following methods: 1. By floats. 2. Current Meters. 3. Pitots tube. 4. Can be determined by use of Kutter\u27s formula --page 1
Linking Research to Educational Policy and Practice: What Kind of Relationships in How (de)Centralized a Context?
There have been debates on two issues related to the process of improving educational quality. The first concerns the alternative models for the relationship between researchers and policymakers/practitioners in efforts in efforts to link research and policy/practice. The second involves arguments about merits of centralized, linear versus decentralized, iterative strategies for reforming education. In this chapter, we summarize the issues raised in these debates and then explore them using illustrations drawn from documentation research of a USAID-funded project, Improving Educational Quality (IEQ), which operated in Ghana, Guatemala and Mali during the years from 1992 to 1996
The politics of linking educational research, policy, and practice: The case of improving educational quality in Ghana, Guatemala and Mali
This paper examines the political dimension of the educational research undertaken by Ghanian,\ud
Guatemalan, and Malian teams as part of the 1991 to 1996, USAID-funded “Improving Educational\ud
Quality” (IEQ) project. The following questions are addressed: (a) why were (or were not) aspects\ud
of the educational reforms studied by the researchers; (b) why were (or were not) research findings\ud
used in decision-makingabout the educationalpolicies and practices associatedwith the reforms; and\ud
(c) why were particular institutional arrangements and funding levels constituted for the research and\ud
dialogue activity. In offering answers to these questions, attentionis paid to local, national, and global\ud
power relations and resource distributions
The Politics of Linking Educational Research, Policy, and Practice: The Case of Improving Educational Quality in Ghana, Guatemala and Mali
Identification of nonlinearity in conductivity equation via Dirichlet-to-Neumann map
We prove that the linear term and quadratic nonlinear term entering a
nonlinear elliptic equation of divergence type can be uniquely identified by
the Dirichlet to Neuman map. The unique identifiability is proved using the
complex geometrical optics solutions and singular solutions
Healthy Sleep Leads to Improved Nutrition and Exercise in College Females
Diet, sleep quality, and exercise are important determinants of physical, mental, and emotional health. College students are particularly vulnerable to impaired health, as they experience multiple unique stressors associated with college life that impact their ability to engage in healthy sleep, diet, and exercise habits. Our results found that exercise significantly mediated the association between sleep quality and diet. Improved sleep habits may increase a young woman\u27s ability and desire to exercise, thus impacting her diet and nutrition. Findings suggest that clinicians can use a person\u27s motivation in any one domain, or multiple domains, to impact other health domains
Full-wave invisibility of active devices at all frequencies
There has recently been considerable interest in the possibility, both
theoretical and practical, of invisibility (or "cloaking") from observation by
electromagnetic (EM) waves. Here, we prove invisibility, with respect to
solutions of the Helmholtz and Maxwell's equations, for several constructions
of cloaking devices. Previous results have either been on the level of ray
tracing [Le,PSS] or at zero frequency [GLU2,GLU3], but recent numerical [CPSSP]
and experimental [SMJCPSS] work has provided evidence for invisibility at
frequency . We give two basic constructions for cloaking a region
contained in a domain from measurements of Cauchy data of waves at \p
\Omega; we pay particular attention to cloaking not just a passive object, but
an active device within , interpreted as a collection of sources and sinks
or an internal current.Comment: Final revision; to appear in Commun. in Math. Physic
Football: a counterpoint to the procession of pain on the Western Front, 1914-1918?
In this article, three artworks of the First World War containing images of recreational football are analysed. These three images, In the Wings of the Theatre of War, Artillery Men at Football and Gassed, span the war from its beginning to its conclusion and are discussed in relationship to the development of recreational football in the front-line area, the evolving policies of censorship and propaganda and in consideration of the national mood in Britain. The paper shows how football went from being a spontaneous and improvised pastime in the early stages of the war to a well organized entertainment by war’s end. The images demonstrate how the war was portrayed as a temporary affair by a confident nation in 1914 to a more resigned acceptance of a semi-permanent event to be endured by 1918; however, all three artworks show that the sporting spirit, and hence the fighting spirit, of the British soldier was intact
EO9 (Apaziquone): from the clinic to the laboratory and back again
EO9 (Apaziquone) is a bioreductive drug that has a chequered history. It underwent clinical trial but failed to show activity in phase II clinical trials when administered i.v. Poor drug delivery to tumours caused by a combination of rapid pharmacokinetic elimination and poor penetration through avascular tissue were the major factors responsible for EO9’s poor efficacy. Based upon an understanding of why EO9 failed, a further clinical trial against patients with superficial transitional cell carcinoma
of the bladder was conducted. The rationale for this was that intravesical administration directly into the bladder would circumvent the drug delivery problem, and any drug reaching the blood supply would be rapidly cleared thereby reducing the risk of systemic exposure. EO9 was well tolerated, and clinical activity against marker lesions was recorded in both phase I and II clinical trials. This article charts the pharmacological history of EO9 and discusses the potential implications that ‘the EO9 story’ has for the development of other loco-regional therapies
Iatrogenic cerebral amyloid angiopathy: an emerging clinical phenomenon
In the last 6 years, following the first pathological description of presumed amyloid-beta (Aβ) transmission in humans (in 2015) and subsequent experimental confirmation (in 2018), clinical cases of iatrogenic cerebral amyloid angiopathy (CAA)—attributed to the transmission of Aβ seeds—have been increasingly recognised and reported. This newly described form of CAA is associated with early disease onset (typically in the third to fifth decade), and often presents with intracerebral haemorrhage, but also seizures and cognitive impairment. Although assumed to be rare, it is important that clinicians remain vigilant for potential cases, particularly as the optimal management, prognosis, true incidence and public health implications remain unknown. This review summarises our current understanding of the clinical spectrum of iatrogenic CAA and provides a diagnostic framework for clinicians. We provide clinical details for three patients with pathological evidence of iatrogenic CAA and present a summary of the published cases to date (n=20), identified following a systematic review. Our aims are: (1) To describe the clinical features of iatrogenic CAA, highlighting important similarities and differences between iatrogenic and sporadic CAA; and (2) To discuss potential approaches for investigation and diagnosis, including suggested diagnostic criteria for iatrogenic CAA
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