Filler Distribution as Effected by Drainage Rate and Volume

Much work has been going on in the development of increased retention of titanium dioxide. This thesis will investigate retention of titanium dioxide and drainage rates on the distribution of titanium dioxide. The retention of titanium dioxide will be understood a little better if conditions having known effects on retention are stated. Literature states that retention of fillers increases with increased basis weight, (2) increased beating of the pulp, (1) with increased alum to a limit, (1) and decreases with interrelated machine conditions such as increased speed, vacuum in the suction boxes, and length of wire and shake. (1

Impaired glucose tolerance or newly diagnosed diabetes mellitus diagnosed during admission adversely affects prognosis after myocardial infarction: An observational study

Objective To investigate the prognostic effect of newly diagnosed diabetes mellitus (NDM) and impaired glucose tolerance (IGT) post myocardial infarction (MI). Research Design and Methods Retrospective cohort study of 768 patients without preexisting diabetes mellitus post-MI at one centre in Yorkshire between November 2005 and October 2008. Patients were categorised as normal glucose tolerance (NGT n = 337), IGT (n = 279) and NDM (n = 152) on predischarge oral glucose tolerance test (OGTT). Primary end-point was the first occurrence of major adverse cardiovascular events (MACE) including cardiovascular death, non-fatal MI, severe heart failure (HF) or non-haemorrhagic stroke. Secondary end-points were all cause mortality and individual components of MACE. Results Prevalence of NGT, impaired fasting glucose (IFG), IGT and NDM changed from 90%, 6%, 0% and 4% on fasting plasma glucose (FPG) to 43%, 1%, 36% and 20% respectively after OGTT. 102 deaths from all causes (79 as first events of which 46 were cardiovascular), 95 non fatal MI, 18 HF and 9 non haemorrhagic strokes occurred during 47.2 ± 9.4 months follow up. Event free survival was lower in IGT and NDM groups. IGT (HR 1.54, 95% CI: 1.06–2.24, p = 0.024) and NDM (HR 2.15, 95% CI: 1.42–3.24, p = 0.003) independently predicted MACE free survival. IGT and NDM also independently predicted incidence of MACE. NDM but not IGT increased the risk of secondary end-points. Conclusion Presence of IGT and NDM in patients presenting post-MI, identified using OGTT, is associated with increased incidence of MACE and is associated with adverse outcomes despite adequate secondary prevention

An SRAM system based on a reduced-area four-transistor CMOS SRAM cell

The traditional method of implementing SRAM in CMOS is via a six-transistor cell and five routing lines. If the number of transistors and the number of wires could be reduced, the packing density of the memory cells could be increased, and the area reduced. This document describes the design of an SRAM system based on a new four¬transistor SRAM cell. The primary design goal was to create a functional system, so that the relationship between reduced cell area and a potentially reduced system area could be investigated. A new write method and associated array structure has been used, and the design of the system parameters was accomplished using static noise margin theory. The power dissipation and percentage reduction in cell area have been improved over previous designs. The circuits to achieve the access to the cell have been designed and simulated. These include low-impedance driver circuits, that allow the power supply of the cell's devices to be individually modified to read and write the cell, and a current sense amplifier system to convert the output current to a digital voltage. These circuits allow complete and accurate control to be achieved, but a price is paid for the complexity in terms of layout area. The SRAM system emulates a standard SRAM, and could therefore be used to replace current SRAM implementations. The design was simulated on a system level, and found to operate correctly. Although it is outperformed by its six-transistor cell counterpart in terms of power dissipation, speed and layout area, the groundwork for defining further research and improving the characteristics of further designs has been laid.Dissertation (MEng (Electronic Engineering))--University of Pretoria, 2002.Electrical, Electronic and Computer Engineeringunrestricte

Evaluating the role of a humanoid robot to support learning in children with profound and multiple disabilities

Purpose The purpose of this paper is to identify ways teachers might employ a robot to achieve learning objectives with pupils with intellectual disabilities and potential outcome measures. Design/methodology/approach A series of five case studies where teacher-pupil dyads were observed during five planned video-recorded sessions with a humanoid robot. Engagement was rated in a classroom setting and during the last session with the robot. Video recordings were analysed for duration of engagement, teacher assistance and number of goals achieved. Findings Teachers identified a wide range of learning objectives ranging from an appreciation of cause and effect to improving the pupil's sense of direction. The robot's role could be to reward behaviour, provide cues or provide an active element to learning. Rated engagement was significantly higher with the robot than in the classroom. Research limitations/implications A robot with a range of functions that allowed it to be engaging and motivating for the wide range of pupils in special education would be expensive and require teachers to learn how to use it. The findings identify ways to provide evidence that this expenditure of time and money is worthwhile. Originality/value There is almost no research teachers can refer to on using robots to support learning in children with intellectual disabilities. This paper is therefore of value for researchers who wish to investigate using robots to educate children with intellectual disabilities, as it can provide vital information to aid study design

Crushing damage estimation for pavement with lightly cementitious bases

This paper was transferred from the original CD ROM created for this conference. The material was published using Adobe Acrobat 10.1.0 Technology. The original CD ROM was produced by CE Projects cc. Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: [email protected] presented at the 33rd Annual Southern African Transport Conference 7-10 July 2014 "Leading Transport into the Future", CSIR International Convention Centre, Pretoria, South Africa.Crushing (or compression) failure and associated surface deformation of lightly cementitious (stabilised) materials used for base/sub-base course layers in pavements has been well established in the South African pavement design practice since the 1990s. Typically, crushing failure starts at the surface of the cementitious base layer, and could extend to 50 mm deep, depending on tyre load/stress conditions. Recently developed crushing damage relationships for 2, 5, 10, 15 and 20 mm level of deformation (“rut”) were proposed for practical application on these pavements. The aim of this paper is the practical application of these relationships for an un-surfaced and surfaced pavement with a typical stabilised (C3 – quality) base layer. Currently there are up to 15 standard pavement designs with cementitious base layers proposed in TRH 4 (1996). This paper demonstrates the impact of four different tyre models (including overloading) used in the mechanistic-empirical design of these pavements. In particular, the importance of adequate surface protection is demonstrated with reference to the vertical tyre contact stresses expected on these cementitious layers. The impact of the findings extends to the use (or not) of C3 - quality bases and associated surfacings on all categories of pavements carrying up to 10 million E80s. This is considered important towards the upgrading of secondary (or alternative) road pavements using cementitious stabilisers in the base layer, especially in the light of the potential future attraction of heavily loaded vehicles - with or without overloading on the tyres

The Summer Of The Pivot: Prioritizing Equity In Remote Instruction Through A Multidisciplinary Community Of Practice Initiative At A Canadian University

This article is about the multidisciplinary Community of Practice (CoP) initiative that was implemented in the summer of 2020- summer of the pivot- at a Canadian post-secondary institution to prepare faculty, staff, and students for remote teaching and learning while navigating pandemic conditions created by COVID-19. The CoP as a case study using Critical Theory as a theoretical framework examines the experiences of a collective group of faculty and staff from different disciplines leading a multidisciplinary university-wide initiative and the implications of the approach for promoting effective pedagogies for teaching and learning remotely. Findings based on feedback from workshop attendees, reflections from the CoP facilitators, and comments forwarded to senior administrators about the impact and the effectiveness of the program indicate positive results. It is recommended that although the CoP initiative was originally conceived as a response to the summer of the pivot, it should become an integral approach to promoting dialogue and innovative strategies to advance equitable practices in higher education by cultivating community networks. The findings serve to continue constructive dialogues and discussions about how universities can transition, pivot, and mobilize innovatively and creatively to prioritize equitable teaching and learning conditions that challenge the status quo. This requires a long-term commitment by higher education institutions to break away from historically normalized practices and invest in innovative ways to identify and meet the needs of various stakeholders

Enhancing Emotional Safety in a Graduate School Setting

In the United States, racial disparities in education can be seen in rates of graduation from high school through doctoral programs, with People of Color reporting rates that are significantly lower than their White peers. Academic success has been significantly predicted in prior research by the support of teaching staff. Our Safety in the Classroom (SITC) program was developed to close the support gap for several different, often-marginalized groups within graduate school classes at a university in southern California. Students within racial, religious, and sexual orientation groups reported stronger perceptions of prejudice when compared to their peers. The SITC program provided all students an additional tool for resolving questions and concerns about any aspect of a particular course, including behaviors or statements of the instructor, and resulted in greater effect sizes on enhanced feelings of safety in the classroom for students of color. These results were achieved without undermining the students’ belief in their own ability to negotiate over or confront problems in the classroom. Expanded use and evaluation of the SITC program could contribute to the growing literature on academic success and achievement among underrepresented groups, providing one possible tool for helping to close the support gap

Exisulind and CP248 induce growth inhibition and apoptosis in human esophageal adenocarcinoma and squamous carcinoma cells

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75468/1/j.1359-4117.2003.01076.x.pd