15 research outputs found

    Rural crime in East Africa - some theoretical issues

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    Law and Order Statistics in the Third World

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    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

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    CONTENTS: Some problems of East African crime statistics -- The selective use of legal systems in East Africa -- Rural crime in Uganda – some theoretical issues </p

    Word and Spirit in Contemporary African Religious Practice and Thought

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    Electrochemical Switching in Conducting Polymers – Printing Paper Electronics

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    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 70’s. 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 low‐cost 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 over‐oxidation (ECO) properties, which is one of the main degradation mechanisms found in displays. The irreversible and non‐conducting nature of over‐oxidized 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 low‐cost roll‐to‐roll 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 over‐oxidation characteristics was studied. The results suggest that a part of the mechanism for over‐oxidation depends on the OH– concentration of the electrolyte used. Over‐oxidation has also been used in electrochemical loggers, where the temperature and time dependence of the propagation of an over‐oxidation 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

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    Item does not contain fulltext158 p
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