15 research outputs found
Law and Order Statistics in the Third World
This paper is about the unreliability of crime statistics in
developing countries. There are many operational, technical,
institutional, social and cultural reasons for these
inaccuracies. What the police do when an offence is reported and
whether they treat it as a crime is the most critical factor
determining the nature and extent of law and order records. Much
crime goes unreported because of distance, environmental
conditions, diffidence, fear of retribution and distrust or lack
of confidence in the police. Many other offences, though
reported, are never recorded because of incompetence, corruption
and an unwillingness on the part of the police to become
embroiled in domestic conflicts. And many crimes are not
considered as crimes because the offences relate to traditional
customs that form part of long accepted tribal and religious
codes of behaviour. At the same time minor infringements of the
law and petty contraventions are actively pursued by the police.
The resulting crime statistics thus provide a dubious and
inadequate basis for the formulation of policies of social
development and reform
Three studies in East African criminology
CONTENTS: Some problems of East African crime statistics -- The selective use of legal systems in East Africa -- Rural crime in Uganda â some theoretical issues </p
Electrochemical Switching in Conducting Polymers â Printing Paper Electronics
During the last 30 years a new research and technology field of organic electronic materials has grown thanks to a groundbreaking discovery made during the late 70âs. This new field is today a worldwide research effort focusing on exploring a new class of materials that also enable many new areas of electronics applications. The reason behind the success of organic electronics is the flexibility to develop materials with new functionalities via clever chemical design and the possibility to use lowâcost production techniques to manufacture devices. This thesis reports different aspects of electrochemical applications of organic electronics. We have shown that the color contrast in reflective and transmissive electrochromic displays can be almost doubled by adding an extra electrochromic polymer. The choice of electrochromic material was found to be limited by its electrochemical overâoxidation (ECO) properties, which is one of the main degradation mechanisms found in displays. The irreversible and nonâconducting nature of overâoxidized films encouraged us to use it in a novel patterning process in which polythiophene films can be patterned through local and controlled deactivation of the conductivity. ECO can be combined with various patterning tools such as screen printing for lowâcost rollâtoâroll manufacturing or photolithography, which enables patterning of small features. Studies have shown that electronic conductivity contrasts beyond 107 can be achieved, which is enough for various simple electronic systems. To generate better understanding of the ECO phenomenon, the effect of pH on the overâoxidation characteristics was studied. The results suggest that a part of the mechanism for overâoxidation depends on the OHâ concentration of the electrolyte used. Overâoxidation has also been used in electrochemical loggers, where the temperature and time dependence of the propagation of an overâoxidation front is used to monitor and record the temperature of a package.Dagligen kommer vi i kontakt med olika plastmaterial. Dessa har vanligtvis mycket dĂ„lig elektrisk ledningsförmĂ„ga och anvĂ€nds oftast som isolerande material. Det finns dock en klass av plaster som Ă€r halvledande eller ledande. Sedan upptĂ€ckten av dessa material för mer Ă€n 30 Ă„r sedan har nya material och anvĂ€ndningsomrĂ„den utvecklats och nu börjar de första produkterna baserad pĂ„ organisk elektronik komma ut pĂ„ marknaden. En stor fördel med de ledande plasterna Ă€r att egenskaperna kan anpassas genom att Ă€ndra den kemiska strukturen. Man kan dessutom lösa upp dem och skapa ledande blĂ€ck, som sedan kan anvĂ€ndas i vanliga tryckmaskiner. Detta gör det möjligt att pĂ„ ett enkelt och billigt sĂ€tt tillverka elektronik pĂ„ liknande sĂ€tt som till exempel tidningar trycks idag. Den hĂ€r avhandlingen behandlar en del av det nya omrĂ„det som berör elektrokemiska komponenter och nĂ„gra av dess tillĂ€mpningar. Fokus ligger frĂ€mst pĂ„ billig, tryckt elektronik. Bland annat presenteras ett sĂ€tt att fördubbla kontrasten för tryckta pappersdisplayer, ett nytt sĂ€tt att mönstra ledande plaster och elektrokemisk temperaturloggningsetikett som kan övervaka temperaturen för förpackningar under transport. Den mekanism som förstör ledningsförmĂ„gan vid höga spĂ€nningar har varit ett Ă„terkommande inslag i de studier som har genomförts hĂ€r. Denna mekanism förstör komponenterna under drift men kan ocksĂ„ anvĂ€ndas för att ta bort ledningsförmĂ„gan som mönstringsmetod eller för att lagra information, permanent, i temperaturloggningsetiketten
The Limitations of an Ecumenical Language. The case of Ki-Swahili
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Seeking A Good Life. Religion and Society in Usukuma, Tanzania. 1945-1995
Item does not contain fulltext158 p
Alternative Methodologies for Research Work with Children: Parallel Distributed Processing as a New Possibility or Another Dead End
qualitative, observer bias, unrestricted factors,