The Upper Silesia (Poland) population and forensic usefulness of 11 autosomal STR loci

Allele frequencies, forensic parameters for the 11 STR loci in GenePrint STR Systems—Silver Stain Detection (Promega): CSF1PO, TPOX, TH01, D16S539, D7S820, D13S317, F13A01, FESFPS, VWA, F13B, LPL were determined in a sample of 529–1436 unrelated, dead and alive adults from the Upper Silesia region (Poland). Furthermore, gender identification was carried out. The values of heterozygosity (Ht), polymorphic information content (PIC), power of discrimination (PD), matching probability (PM), mean exclusion chance (MEC) and mean exclusion probability (MEP) were calculated using Dudek's computer programme (FatRec, High Technical School of Cz?stochowa, Poland). A possible divergence from HWE was determined by χ² and exact tests using Miller's computer programme (TFPGA, Northern Arizona University, Flagstaff, USA). Comparison of allele frequencies between the Upper Silesia population and other Polish populations was performed with Carmody's test.     

The Upper Silesia (Poland) population and forensic usefulness of 15 autosomal STR loci

Allele frequencies, forensic parameters for the 15 STR loci in the AmpFlSTR^® Identifiler Kit (Applied Biosystems), D8S1179, D21S11, D7S820, CSF1PO, D3S1358, TH01, D13S317, D16S539, D19S433, VWA, TPOX, D18S51, D5S818 and FGA were determined in a sample of 150 unrelated dead and alive adults from the Upper Silesia region (Poland). The values of heterozygosity (Ht), polymorphic information content (PIC), power of discrimination (PD), matching probability (PM), mean exclusion chance (MEC) and mean exclusion probability (MEP) were calculated. Possible divergence from HWE was determined. Comparison of allele frequencies for examined STR loci between the Upper Silesia population and other Polish populations was carried out.     

Direct amplification of STRs from blood or buccal cell samples

Forensic databasing laboratories routinely analyze blood or buccal cell samples deposited on FTA^® paper. Prior to PCR amplification of the STRs, the FTA^® samples must undergo multi-step sample purification protocols to remove the PCR inhibitors present within the sample and from the FTA^® paper. The multi-step sample purification protocols are laborious, time-consuming and increase the potential for sample cross-contamination.To eliminate the need for DNA purification, we conducted studies to optimize the PCR buffer and thermal cycling parameters to allow for direct amplification of STRs from blood or buccal samples on FTA^® paper. We evaluated the effect of various factors on the DNA profile including: FTA^® disc size, blood sample load variation, and buffer formulation. The new STR assay enables the direct amplification of DNA from single source samples on FTA^® discs without sample purification. The new STR assay improves the workflow by eliminating tedious steps and minimizing sample handling. Furthermore, the new STR assay reduces cost by eliminating the need for purification reagents and expensive robots.     

Sequence polymorphisms at the DXS6789, DXS8377 and DXS101 loci in three Asian populations

Sequence analyses of X-chromosomal short tandem repeats, DXS6789, DXS8377 and DXS101 were performed for representatives of 3 Asian populations: 130 Japanese, 61 Bangladeshi and 89 Indonesian males. At DXS6789, the sequence polymorphism was found in 7 alleles in the Japanese, 3 in the Bangladeshis and 3 in the Indonesians. At DXS8377, the sequence polymorphism was found in 13 alleles in the Japanese, 9 in the Bangladeshis and in all alleles identified in the Indonesians. At DXS101, the sequence polymorphism was found in 7 alleles in the Japanese, 9 in the Bangladeshis and 8 in the Indonesians. Because sequence polymorphisms were found in most of the alleles at the DXS6789, DXS8377 and DXS101 loci, it was concluded that sequencing was essential for identifying the alleles at these loci in all 3 Asian populations.     

Mind the Gap: Attitudes about Miranda Warnings among Police Chiefs and Citizens

Research shows that the police subculture can be characterized by a distinct set of values and beliefs. Much of the police subculture research has focused on common characteristics and values found among a sample of police officers. Fewer studies have considered how the police, as a group, are similar to citizens. In this study, attention is given to similarities and differences in how the police and the public perceive the Miranda warnings. Attention is also given to whether type of neighborhood (low crime versus high crime) is related to attitudes about the Miranda warnings. Findings suggest that while the warnings are perceived in different ways there are similarities that could bridge the gap between the police and public. Implications are suggested.     

Time-lapse resistivity surveys over simulated clandestine graves

The aim of this study was to develop a better understanding of how electrical resistivity surveys can be used to locate clandestine graves. Resistivity surveys were conducted regularly over three simulated clandestine graves containing a pig cadaver, no cadaver and a pig cadaver wrapped in tarpaulin, respectively. Additionally, soil and groundwater samples were collected from two more simulated graves outside the survey area. The grave containing a pig cadaver was detectable from a low resistivity anomaly in the survey data. Groundwater data suggest that the resistivity anomaly associated with the surveyed pig grave was caused by a localised increase in groundwater conductivity. Wrapping a cadaver was found to initially change the resistivity response of a grave to a high resistivity anomaly. Resistivity surveys did not detect the disturbed soil in the grave that did not contain a cadaver. Although soil samples showed grave soil to be more porous than undisturbed soil, the lack of response from the grave that did not contain a cadaver suggests that disturbed soil was not responsible for the resistivity anomalies observed in this study. Resistivity surveys successfully detected all graves containing cadavers throughout the study, whilst also showing the potential to eliminate the need for mass excavation in a genuine search.     

Attitude counts: engaging with rice farmers in West Africa

An international project called PADS promoted participatory learning and action research with inland valley rainfed rice farmers in West Africa. All countries received the same training, similar funding, and the same leadership. Although the staff in Ghana were conscientious and gave much training to the farmer beneficiaries, the Mali staff explicitly encouraged farmers to experiment. Farmers in Mali responded to this favourable attitude by experimenting more than those in Ghana, and in qualitatively more interesting ways. Long-term engagement with grassroots organisations may be as conducive to changing public servants' attitudes as the actual participatory approach promoted on the ground.

L'attitude compte: travail avec des riziculteurs en Afrique de l'Ouest

Un projet international appelé PADS a favorisé l'apprentissage participatif et la recherche-action avec des riziculteurs pratiquant la culture pluviale dans les vallées de l'intérieur des terres en Afrique de l'Ouest. Tous les pays ont reçu la même formation, un financement similaire et le même leadership. Alors que les membres du personnel du Ghana étaient consciencieux et dispensaient une formation considérable aux agriculteurs bénéficiaires, le personnel du Mali encourageait expressément les riziculteurs à faire des expériences. Les riziculteurs du mali ont réagi à cette attitude favorable en faisant plus d'expériences que ceux du Ghana, et ce de manières plus intéressantes sur le plan qualitatif. L'engagement à long terme avec les organisations de la base populaire peut être tout aussi propice à la modification des attitudes des fonctionnaires que l'approche participative même promue sur le terrain.

As atitudes contam: Engajamento com produtores de arroz na África Ocidental

Um projeto internacional chamado PADS promoveu uma pesquisa sobre aprendizado e ação participativa com produtores de arroz irrigado com água da chuva no interior do vale na África Ocidental. Todos os países receberam o mesmo treinamento, financiamento semelhante e a mesma liderança. Embora os funcionários de Gana estivessem cientes e oferecessem bastante treinamento aos produtores beneficiários, os funcionários de Mali incentivaram explicitamente os produtores a experimentar. Os produtores de Mali responderam a esta atitude favorável experimentando mais do que aqueles de Gana e de maneiras mais interessantes em termos qualitativos. O engajamento de longo prazo com organizações de base pode contribuir para mudar as atitudes dos servidores públicos tanto quanto a abordagem participativa real promovida na base.

La actitud cuenta: el trato personal con campesinos arroceros de África Occidental

Un proyecto internacional llamado PADS promovió el aprendizaje participativo y la investigación-acción entre campesinos que cultivaban arroz de secano en los valles centrales de África Occidental. Todos los países participantes recibieron la misma capacitación, un financiamiento similar y las mismas orientaciones. Si bien el personal de Ghana era muy diligente y transmitió muchos conocimientos a los campesinos beneficiarios en capacitaciones, el personal de Malí se centró más explícitamente en animarlos para que experimentaran. Los campesinos de Malí respondieron a esta actitud estimuladora realizando más experimentos y de maneras cualitativamente más interesantes que los campesinos de Ghana. El compromiso de largo plazo con organizaciones de base puede ser tan importante para lograr un cambio en la actitud del servidor público como el método participativo que se promueve en la actualidad sobre el terreno.     

Dynamics of remittance practices and development: Bangladeshi overseas migrants

Remittances from migrant workers play a significant role in keeping the economy of Bangladesh vibrant, adding around six per cent to the country's GDP and helping to maintain the balance of payments. This article examines remittance flows from Hong Kong and Malaysia to Bangladesh; the dynamics of remittance practices; and the impact on the well-being of migrant families. Data were collected from 126 labour migrants (56 in Hong Kong and 70 in Malaysia) between November 2004 and October 2006. The article presents empirical data showing that while remittances are significant component of the Bangladeshi economy, a considerable amount goes to ‘unproductive’ schemes. Hence remittances at the micro level that do not significantly contribute to increasing household capacities fail to bring about the anticipated sustainable development at the macro level.

La dynamique des pratiques d'envoi de fonds et le développement : migrants bangladais à l'étranger

Les envois de fonds par les travailleurs migrants jouent un rôle considérable dans le maintien du dynamisme de l'économie du Bangladesh, car ils comptent pour environ six pour cent du PIB du pays et contribuent à maintenir la balance des paiements. Cet article examine les transferts d'argent de Hong Kong et de Malaisie vers le Bangladesh, la dynamique des pratiques d'envois de fonds et l'impact sur le bien-être des familles migrantes. Des données ont été recueillies parmi 126 ouvriers (56 à Hong Kong et 70 en Malaisie) entre novembre 2004 et octobre 2006. Cet article présente des données empiriques qui montrent que, si les envois de fonds constituent effectivement un élément considérable de l'économie bangladaise, une quantité importante va vers des programmes « non productifs ». Ainsi, les envois de fonds au niveau micro qui n'apportent pas une contribution importante à l'accroissement des capacités des ménages ne donnent pas lieu au développement durable prévu au niveau macro.

Dinâmicas de práticas de remessa e desenvolvimento: imigrantes bengaleses

As remessas feitas por trabalhadores imigrantes desempenham um papel significativo em manter a economia de Bangladesh vibrante, adicionando cerca de seis por cento do PIB do país e ajudando a manter o balanço de pagamentos. Este artigo examina os fluxos de remessa de Hong Kong e Malásia para Bangladesh, as dinâmicas das práticas de remessa e o impacto sobre o bem-estar das famílias de imigrantes. Os dados foram coletados de 126 trabalhadores imigrantes (56 em Hong Kong e 70 na Malásia) entre novembro de 2004 e outubro de 2006. O artigo apresenta dados empíricos mostrando que embora as remessas sejam um componente significativo da economia de Bangladesh, um montante considerável vai para esquemas “improdutivos”. Assim, as remessas no nível micro que não contribuem significativamente para melhorar as condições da família, não conseguem promover o desenvolvimento sustentável previsto no nível macro.

La dinámica de las remesas y el desarrollo: los migrantes de Bangladesh en el extranjero

Las remesas de los trabajadores migrantes constituyen una parte importante de la economía de Bangladesh ya que representan el seis por ciento del PIB del país y contribuyen a mantener el equilibrio de la balanza de pagos. Este ensayo analiza los flujos de remesas de Hong Kong y Malasia hacia Bangladesh, la dinámica de cómo se utilizan las remesas y su impacto en el bienestar de las familias de los migrantes. Se recopilaron estadísticas de 126 trabajadores migrantes (56 en Hong Kong y 70 en Malasia) entre noviembre de 2004 y octubre de 2006. Los datos empíricos que presenta el ensayo demuestran que, si bien las remesas son un componente significativo de la economía de Bangladesh, una parte considerable se destina a actividades “improductivas”. Por lo tanto, las remesas a nivel micro que no contribuyen de manera significativa a mejorar las condiciones de los hogares no aportan al desarrollo sustentable a nivel macro que sería deseable.