Application of digital control to a magnetic model suspension and balance model

The feasibility of using a digital computer for performing the automatic control functions for a magnetic suspension and balance system (MSBS) for use with wind tunnel models was investigated. Modeling was done using both a prototype MSBS and a one dimensional magnetic balance. A microcomputer using the Intel 8080 microprocessor is described and results are given using this microprocessor to control the one dimensional balance. Hybrid simulations for one degree of freedom of the MSBS were also performed and are reported. It is concluded that use of a digital computer to control the MSBS is eminently feasible and should extend both the accuracy and utility of the system

The impact of Covid-19 on families, children aged 0-4 and pregnant women in Tower Hamlets: Wave One Survey Findings

Families in Tower Hamlets is an ongoing research project led by University College London into the impact of the Covid-19 pandemic on the lives of families with young children and pregnant women. This report is of initial findings from the ‘first 500’ respondents, who completed the survey between July and November 2020. We present findings in terms of seven main ethnic groups that broadly represent proportions in the local population: one third of the population identify as White British and White Irish; a further third identify as Bangladeshi; and a final third identify with a wide range of other ethnicities. There are marked differences within this group so we have used the categories: Other White; Asian Other; Somali; Black & Black Other; and Other ethnic group to illustrate the experiences of respondents. With this lens of ethnicity, combined with analysis by household income, we can see certain clear patterns arising. Here, we focus on five main areas: family livelihoods; housing and environment; supporting children at home; health and social support services; and participants’ own health and mental health. Subsequent outputs will present findings in more detail

Income, ethnic diversity and family life in East London during the first wave of the pandemic: An assets approach

Objective: This paper reports first results from a survey of 992 parents and parents to be living in an ethnically diverse and socio-economically unequal borough of East London during the coronavirus pandemic that reduced mobility, closed services and threatened public health. / Background: Little is known about the place based impacts of the pandemic on families with young children. We describe the living circumstances of families with children under five or expecting a baby living in Tower Hamlets during the Coronavirus pandemic in 2020, and then examine the relative importance of household characteristics such as ethnicity and household income for adverse impacts on survey respondents, as seen in mental health outcomes. / Method: a community survey sample recruited with support from the local council comprised 75% mothers/pregnant women, 25% fathers/partners of pregnant women. Reflecting the borough population, 35 percent were White British or Irish and 36 percent were Bangladeshi, and the remainder were from a wide range of ethnic backgrounds. Adopting an assets based approach, we describe material, familial and community assets using three household income bands and seven ethnic groups. We then use regressions to identify which assets were most important in mitigating adversity. / Results: We find that material assets (income, employment, food insecurity, housing quality) were often insecure and in decline but familial assets (home caring practices, couple relationships) were largely sustained. Community assets (informal support, service provision) were less available or means of access had changed. Our analyses find that while descriptively ethnicity structured adverse impacts of the pandemic related changes to family life, income and couple relationships were the most important assets for mitigating adversity as seen in mental health status. / Conclusion: Supporting family assets will require close attention to generating local and decent work as well as enhancing access to community assets

Interim Briefing Report. The First 500: The impact of Covid-19 on families, children aged 0-4 and pregnant women in Tower Hamlets

Families in Tower Hamlets is an ongoing research project led by University College London into the impact of the Covid-19 pandemic on the lives of families with young children and pregnant women. This report is of initial findings from the ‘first 500’ respondents, who completed the survey between July and September 2020. We present findings in terms of three main ethnic groups that broadly represent proportions in the local population: one third of the population identify as White British and White Irish; a further third identify as Bangladeshi; and a final third identify with a wide range of other ethnicities which we have had to present as ‘Other ethnicity’ in this report and we acknowledge this is unlikely to do justice to the range of experience within this group. With this lens of ethnicity, combined with analysis by household income, we can see certain clear patterns arising. Here, we focus on five main areas: family livelihoods; housing and environment; supporting children at home; health and social support services; and participants’ own health and mental health. Subsequent outputs will present findings in more detail

What Family Circumstances, During COVID-19, Impact on Parental Mental Health in an Inner City Community in London?

The introduction of lockdown due to a public health emergency in March 2020 marked the beginning of substantial changes to daily life for all families with young children. Here we report the experience of families from London Borough of Tower Hamlets with high rates of poverty and ethnic and linguistic diversity. This inner city community, like communities worldwide, has experienced a reduction or closure in access to education, support services, and in some cases, a change in or loss of income, job, and food security. Using quantitative survey items (N = 992), we examined what differences in family circumstances, for mothers and fathers of young children aged 0-5 living in Tower Hamlets, during March 2020 to November 2020, were associated with their mental health status. We measure parental mental health using symptoms of depression (self-report: Patient Health Questionnaire depression scale: PHQ-8), symptoms of anxiety levels (self-report: General Anxiety Disorder: GAD-7), and perceptions of direct loneliness. We find parental mental health difficulties are associated with low material assets (financial security, food security, and children having access to outside space), familial assets (parents time for themselves and parent status: lone vs. cohabiting), and community assets (receiving support from friends and family outside the household). South Asian parents and fathers across ethnicities were significantly more likely to experience mental health difficulties, once all other predictors were accounted for. These contributing factors should be considered for future pandemics, where restrictions on people's lives are put in place, and speak to the importance of reducing financial insecurity and food insecurity as a means of improving the mental health of parents

Emergence of classicality in small number entangled systems

We show the transition from a fully quantized interaction to a semiclassical one in entangled small number quantum systems using the quantum trajectories approach. In particular, we simulate the microwave Ramsey zones used in Rydberg atom interferometry, filling in the gap between the strongly entangling Jaynes Cummings evolution and the semiclassical rotation of the atomic internal states. We also correlate the information flowing with leaking photons to the entanglement generation between cavity field and flying atom and detail the roles played by the strong dissipation and the external driving force in preserving atomic coherence through the interaction.Comment: 4 pages, 6 figure

Cost accounting for brass manufacturers, Final report on the preparation of a uniform cost accounting system

The following report of the Special Cost Committee, appointed by the Permanent Cost Committee at the meeting held at the Congress Hotel, Chicago, May 22nd and 23rd, 1917, outlines a Uniform Cost Finding System that will adequately meet the needs of Brass Manufacturers. It has been constantly borne in mind by this Committee that this Uniform Cost Finding System must be as applicable to the small manufacturer as to the large one, and we believe that a careful study of this report will bear out the statement that it will meet the requirements of any brass manufacturer, regardless of the size of his plant. In considering a Uniform Cost Finding System, its relation to other phases of the business of manufacturing must be taken into consideration. There is production work, which consists of planning the work to be performed in the factory, and the issuing of instructions covering it; control of labor and pay-roll department. Then there is Purchasing, Inspecting, Receiving, General Accounting and Shipping. It has been the aim of this Committee to confine its recommendations to actual cost finding as much as possible, although occasional references to Production and General Accounting will be found. By this is meant, the general books should reflect in total what the cost accounts represent in detailâ⠡¬â€�in other words, the accounts in the general books must be so arranged that the detailed charges and credits turned in monthly by the Cost Department can be posted directly to the general account affected. The accounts in the general books must be of sufficient detail to overcome the bad practice of charging many items to General Expense that really deserve separate accounts

High-carrier-density electron dynamics in low-temperature-grown GaAs

Pump-probe differential transmission measurements examine high-carrier-density phenomena in as-grown and annealed GaAs samples grown at temperatures from 210 to 270 °C. We observe trap saturation and Auger recombination, and accurately model the measurements on annealed samples with a simple two level rate equation, allowing us to extract the trapped-electron lifetimes. © 1997 American Institute of Physics.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/70634/2/APPLAB-70-24-3245-1.pd

Successful private–public funding of paediatric medicines research: lessons from the EU programme to fund research into off-patent medicines

The European Paediatric Regulation mandated the European Commission to fund research on off-patent medicines with demonstrated therapeutic interest for children. Responding to this mandate, five FP7 project calls were launched and 20 projects were granted. This paper aims to detail the funded projects and their preliminary results. Publicly available sources have been consulted and a descriptive analysis has been performed. Twenty Research Consortia including 246 partners in 29 European and non-European countries were created (involving 129 universities or public funded research organisations, 51 private companies with 40 SMEs, 7 patient associations). The funded projects investigate 24 medicines, covering 10 therapeutic areas in all paediatric age groups. In response to the Paediatric Regulation and to apply for a Paediatric Use Marketing Authorisation, 15 Paediatric Investigation Plans have been granted by the EMAPaediatric Committee, including 71 studies of whom 29 paediatric clinical trials, leading to a total of 7,300 children to be recruited in more than 380 investigational centres. Conclusion: Notwithstanding the EU contribution for each study is lower than similar publicly funded projects, and also considering the complexity of paediatric research, these projects are performing high-quality research and are progressing towards the increase of new paediatric medicines on the market. Private–public partnerships have been effectively implemented, providing a good example for future collaborative actions. Since these projects cover a limited number of offpatent drugs and many unmet therapeutic needs in paediatrics remain, it is crucial foreseeing new similar initiatives in forthcoming European funding programmes