Open Source Architecture: Redefining Residential Architecture in Islamabad

Islamabad, a planned city, has grown rapidly since its conception in the 1960’s but it has not followed its predetermined fate but rather grown haphazardly due to the lack of infrastructure available to implement Doxiadis’s master plan. The city was unable to meet the housing requirements of the people causing them to build gated communities on the outskirts of Islamabad and its sister city, Rawalpindi. The market demands caused city prices to rise exponentially, increasing the economic divide between the social classes. The city which was once supposed to reflect diversity of social classes became home to the elite and the privileged. To heal these woes, the government needs to rethink the by-laws to echo the changes in the economy and society of Islamabad. Today, the city is facing multiple issues politically, economically and socially. The energy crisis is opening up the need for people to find alternative energy solutions. By defining a set of principles which reflect the teachings of vernacular architecture and employing renewable energy techniques, this thesis envisions a matrix of solutions tackling these issues. An open source platform would provide a data base of options for the 4 different types of dwellings defined by the housing authority. This would engage the city in an architectural discourse that does not currently exist, it would invite the layperson to understand and build awareness in the general population from architect to owner to builder

Does age-at-migration in childhood affect migrant socioeconomic achievements in adulthood?

Migrant populations consist of individuals who migrated at different stages in the development of their human capabilities. Age-at-migration refers to the age at which an individual migrates. This paper reviews some theoretical arguments and empirical evidence on whether a child’s age-at-migration alters the impact of migration on income, employment and other socioeconomic indicators in the adult phase of the child’s life. Most research looks at the contemporaneous impact of migration on children, whereas this paper considers the longitudinal impact of childhood migration on well-being throughout life. Age-at-migration might affect human capital and economic productivity, integration at destinations, and attachments to origins. Studies show that children migrating at older ages ultimately achieve less total education (origin education plus destination education), weaker destination-language acquisition and lower earnings than those arriving as younger children; but they have higher adult earnings compared to those arriving as adults. There appears to be little difference between those arriving before age 5 years and those born at destination, which is surprising given considerable literature on the human development significance of early child ages (although this could be due to the limited availability of relevant empirical literature). Variations in the effects of age-at-migration are noted across migrant populations in different destination societies, which underline the possibility of public policy to influence such human development mechanisms.International migration; Migrant earnings and their distributions; Child migration; Human development; Lifecourse methods

Multi fingered robot hand in industrial robot application using tele-operation

This research focuses on the working and development of wireless robotic hand system. In this research previously developed models have been studied. After analysis of those models, a better approach has been presented in this research. The objective of this research is to design and develop a tele-operated robotic hand system. The robotic hand is intended for providing solutions to industrial problems like robot reprogramming, industrial automation and safety of the workers working in hostile environments. The robotic hand system works in the master slave configuration where Bluetooth is being used as the communication channel for the tele-operation. The master is a glove, embedded with sensors to detect the movement of every joint present in the hand, which a human operator can wear. This joint movement is transferred to the slave robotic hand which will mimic the movement of human operator. The robotic hand is a multi fingered dexterous and anthropomorphic hand. All the fingers are capable of performing flexion, extension, abduction, adduction and hence circumduction. A new combination of pneumatic muscles and springs has been used for the actuation purpose. As a result, this combination reduces the size of the robotic hand by decreasing the number of pneumatic muscles used. The pneumatic muscles are controlled by the opening and closing of solenoid valves. A novel technique has been used in the robotic hand for tendon routing, which gives the ability of independence to all finger joints. The heart of all the control mechanism of the system is mbed microcontroller. The designed system was tested at different module levels. The results show the successful establishment of communication between master and slave at a rate of 10 packets per second, which was sufficient for smooth motion of the system. The amount of torque produced at all the joints in the robotic hand has been presented in this research. The posture tests have been performed in which two fingers were actuated which followed the master. This system has achieved motion of fingers without any tendon coupling problem. The system is able to replace the human industrial workers performing dexterous tasks

Relating Severe Poverty and Chronic Poverty

The severely poor are very poor since their consumption is far below the absolute poverty line, and the chronically poor are very poor since their consumption persists for long periods below the absolute poverty line. A combination of chronic poverty and severe poverty (CSP) must represent the very worst instance of poverty. Yet the exercise in this paper of asking simple questions about CSP shows large research gaps. Quantified statements on CSP at the country level can be made for just 14 countries, and at the household level in just six countries. This data suggests a positive correlation between severe poverty and chronic poverty, both at the country level and the household level. Understanding the CSP relationship – whether it is strong, where it arises, what causes it – may improve our explanation of observed cross-country variation in the elasticity between macroeconomic growth and poverty reduction, and why within countries, some households take better advantage of opportunities afforded by macroeconomic growth. Some limited data suggests similarity in socioeconomic characteristics of the severe poor and the chronic poor in terms of location, household size, gender, education and economic sector of work. Of concern is that microlongitudinal datasets drop large proportions of their base year samples, and how this affects our understanding of CSP is not well evaluated. On causal mechanisms, evidence suggests that CSP may be caused by parental CSP (i.e. an intergenerational CSP cycle) and in households not previously poor, CSP may be caused by a morbidity cycle.

Intertemporal Welfare Dynamics

human development, technology

Adding dimensions to the analysis of the quality of health information of websites returned by Google. Cluster analysis identifies patterns of websites according to their classification and the type of intervention described.

Background and aims: Most of the instruments used to assess the quality of health information on the Web (e.g. the JAMA criteria) only analyze one dimension of information quality, trustworthiness. We try to compare these characteristics with the type of treatments the website describe, whether evidence-based medicine or note, and correlate this with the established criteria. Methods: We searched Google for “migraine cure” and analyzed the first 200 websites for: 1) JAMA criteria (authorship, attribution, disclosure, currency); 2) class of websites (commercial, health portals, professional, patient groups, no-profit); and 3) type of intervention described (approved drugs, alternative medicine, food, procedures, lifestyle, drugs still at the research stage). We used hierarchical cluster analysis to assess associations between classes of websites and types of intervention described. Subgroup analysis on the first 10 websites returned was performed. Results: Google returned health portals (44%), followed by commercial websites (31%) and journalism websites (11%). The type of intervention mentioned most often was alternative medicine (55%), followed by procedures (49%), lifestyle (42%), food (41%) and approved drugs (35%). Cluster analysis indicated that health portals are more likely to describe more than one type of treatment while commercial websites most often describe only one. The average JAMA score of commercial websites was significantly lower than for health portals or journalism websites, and this was mainly due to lack of information on the authors of the text and indication of the date the information was written. Looking at the first 10 websites from Google, commercial websites are under-represented and approved drugs over-represented. Conclusions: This approach allows the appraisal of the quality of health-related information on the Internet focusing on the type of therapies/prevention methods that are shown to the patient

Classification of Human Ventricular Arrhythmia in High Dimensional Representation Spaces

We studied classification of human ECGs labelled as normal sinus rhythm, ventricular fibrillation and ventricular tachycardia by means of support vector machines in different representation spaces, using different observation lengths. ECG waveform segments of duration 0.5-4 s, their Fourier magnitude spectra, and lower dimensional projections of Fourier magnitude spectra were used for classification. All considered representations were of much higher dimension than in published studies. Classification accuracy improved with segment duration up to 2 s, with 4 s providing little improvement. We found that it is possible to discriminate between ventricular tachycardia and ventricular fibrillation by the present approach with much shorter runs of ECG (2 s, minimum 86% sensitivity per class) than previously imagined. Ensembles of classifiers acting on 1 s segments taken over 5 s observation windows gave best results, with sensitivities of detection for all classes exceeding 93%.Comment: 9 pages, 2 tables, 5 figure