The Strengths and Limits of Waldinger's The Cross Border Connection

In this important book Roger Waldinger proposes a new analytical framework for the study of the migrant experience. He argues that migrants are at the same time immigrants and emigrants and their lives are subject to contradictory forces that on the one hand connect them with their country of origin and on the other hand pull them towards integrating into the country in which they reside. Waldinger affirms that this new analytical frame addresses the limits of assimilation theory – that is, methodological nationalism – and the blinders of the literature on transnationalism – that is, the exclusive focus on the connections between the places of origin and reception. I think that this is indeed true. At the same time, I believe that Waldinger's analysis has limits and blinders of its own. It is too critical of the literature on transnationalism and too uncritical concerning the process of incorporation. In spite of these limitations, this book is an original contribution to the study of the migration experience.     

Shifting perspectives on transnationalism: analysing Dutch political discourse on Moroccan migrants' transnational ties, 1960–2010

Abstract

This article examines the Dutch state's shifting perspectives on migrants' ties with their country of origin. In the academic literature transnationalism was introduced as a neutral term. In political debates the term transnationalism is hardly used, but the ties of migrants with their country of origin (to which the term transnationalism relates) are given a strong negative connotation. They are seen as the main course of failed integration policy. In the past fifty years a dramatic shift has occurred in how these ties are perceived. First, they were regarded positively and were believed to facilitate an easy return of the guest workers. Later they continued to be portrayed positively, but were also considered to be a springboard for integration into Dutch society. Recently they have been portrayed negatively and as the main obstacle to integration. This article explores why this dramatic shift in connotation has occurred.     

The legacy of transnational lives: Beyond the first generation of Lebanese in Senegal

Definitions of transnationalism are modelled after first generation migrant communities in the west. Through presenting ethnographic detail on the Lebanese community in Senegal, this article applies the concept of transnationalism to the case of a historic South-South migrant community. Second and later generation ethnic groups maintain transnational ties through notions of self-identity and definitions by others, the importance given to the homeland, and political and religious ideologies. Race, geographic location, and changes in the structure of labour markets are factors that encourage continued ties with the country of origin. Furthermore, transnationalism cannot be limited only to sending and receiving countries. Colonial and former colonial powers can determine the destination of migrants, establish economic hierarchies, and offer a tertiary citizenship to transnational migrants in addition to the dual citizenship of country of origin and destination.     

Race statistics: how to get from where we are to where we should be: a rejoinder

America's race statistics are inadequate to the policy challenges of the twenty-first century, especially for social justice and immigrant incorporation policy. But inertial forces – technical and political – complicate change. Overcome technical barriers by taking advantage of an experiment fielded in 2010. To miss that opportunity would be a huge failure. Political barriers are more difficult. Start with what is familiar – more emphasis on national origin – and add flexibility and granularity, both are politically desirable. Introduce change without disrupting the existing policy practices. Phase in improvements gradually, taking advantage of generational turnover. One generation changes the statistical basis for policy. The next generation, which has grown up with the new statistics, implements the policy changes. An example of how this works is found in the multiple-race option introduced in the 2000 census but probably not put to policy use until after the 2030 census.     

Intelligence and family size: A paradox resolved

Abstract

IQ data was studied for over a thousand families for both parents and offspring, and also for the non‐reproducing siblings of parents. The inclusion of these siblings allowed the authors to resolve the paradox presented by the failure of the general intelligence level to decline in accord with the large negative correlation (‐0.30) between intelligence and number of children in the family. When the non‐reproducing siblings of the parents are included, the negative correlation disappears. The higher reproductive rate of individuals in the lower IQ groups who are parents is offset by the larger proportion of their siblings who never marry or who fail to reproduce when married. Thus, the IQ level of the whole population should remain relatively static from one generation to the next, or at least not drop rapidly.     

The human dynamics of migrant transnationalism

Abstract

How is migrant transnationalism shaped by the human dynamics of relationships between migrants and non-migrants? This question is addressed through an analysis of asymmetries between migrants and non-migrants in three spheres of transnational life: the moralities of transnationalism, information and imagination in transnational relations, and transnational resource inequalities. Understanding transnational practices such as sending remittances and facilitating migration, it is argued, requires attention to the dynamics of the relationships between individuals. Fieldwork material from Cape Verde and the Netherlands is combined with secondary literature from other parts of the world in order to develop an analytical framework for comparative research.     

Rethinking transnationalism through the second generation

The concept of transnationalism was developed to describe the ties maintained by migrants with their homelands and, until recently, little attention was given to the question of whether these ties would be continued by the migrants’ children, the ‘second generation’. This article discusses the transnational practices of second‐generation Tongans in Australia, using the research findings to reconsider some of the existing assumptions about what constitutes transnationalism. To fully understand second‐generation transnationalism, three forms of transnationalism are described: intradiasporic, indirect and forced transnationalism. Taking these forms into account reveals a more complex picture of the transnational ties maintained by migrants and their children than has been drawn in previous accounts.     

Homeland origins and political identities among Chinese in Southern California

Abstract

This research project seeks to understand the scope and sources of ethnic and other political identities among US residents of Chinese descent whose families originated from the Chinese mainland, Taiwan, Hong Kong and elsewhere in Asia. In what ways, to which extent and why do these individuals from various homeland origins identify themselves politically in the United States? Informed by past research on ethnic identity formation and political transnationalism, this research analyses a large-scale public opinion survey of Chinese in Southern California to report the contours and sources of political identities and their relationship to homeland origins, transnational ties and adaptation experiences in the Unites States, while controlling for the influence of sociodemographic factors. By separating out socialization contexts and types of transnational practices, the findings provide important modification to the scholarship on immigrant assimilation and transnationalism.     

Transgressing community: the case of Muslims in a twenty-first-century British city

Abstract

This paper draws on ethnographic research carried out in Birmingham, UK – a city significant for its sizeable Muslim population and its iconic role in the history of minority ethnic settlement in Britain – to consider how associations of place and ethnicity work in different ways to inform ideas about ‘Muslim community’ in twenty-first-century Britain. The paper charts happenings around a local event in an area of majority Asian settlement and how representations of the area as a place of Muslim community were used to implicate it in the ‘war on terror’. The paper goes on to show how this sensibility is disrupted by Muslims themselves through alternative engagements with space and ethnicity. The paper argues that these offer a ground for making Muslim community in ways that actively engage with histories and patterns of ethnic settlement in the city rather than being determined by them.     

二代测序应用于检测GT1-7细胞中KISS1和GnRH启动子的DNA甲基化状态的研究

目的:利用二代测序技术检测GT1-7细胞中KISS1和GnRH基因启动子范围内的甲基化状态,并用金标准的亚硫酸氢盐修饰后的克隆测序作为对照,比较二代测序与金标准克隆测序在研究DNA甲基化检测中的差别。方法:提取GT1-7细胞基因组DNA并进行亚硫酸氢盐处理。进行巢式PCR,将PCR产物进行二代测序。同时采用金标准的亚硫酸氢盐修饰后克隆测序的方法作为对照,对相同批次的PCR产物进行克隆测序。结果:PCR产物二代测序结果表明KISS1和GnRH两个基因的27个CpG甲基化位点信息完整,结果准确。挑取10个克隆进行一代测序结果表明序列无丢失,KISS1和GnRH两个基因的27个CpG甲基化位点信息完整。结论:利用高通量的二代测序技术能够有效的对DNA甲基化的PCR产物进行检测,二代测序和克隆测序都是研究DNA甲基化的有效方法,但前者与克隆测序相比每一个读取序列(reads)都相当于一个单克隆,且二代测序每个区段得到成百上千个reads,因此二代测序结果更加精确。     

‘Diaspora’ diasporas' representations of their homelands: exploring the polymorphs

This essay attempts to make more pliable three overly rigid claims persistent in the diaspora literature: that diaspora members’ imaginations of the homeland are either beautifying/idealizing or unequivocally inimical; that their relations with the host country are inherently distant – they are in it but not of it; and that diasporism and (im)migrant transnationalism constitute two distinct phenomena. It also aims at genderizing the stubbornly genderless study of diasporas. The empirical analysis compares representations of the homeland among turn-of-the-twentieth-century and present-day lower-class Polish émigrés in the United States and the United Kingdom, first-wave (1959–61) Cuban refugees in Miami and 1956 Hungarian political refugees dispersed into different west European countries, and contemporary Mexican men and women migrants in the American Southwest. On the basis of these comparative assessments, the author identifies the major circumstances that shape diaspora members’ portrayals of the homeland.     

Endogamy in settlement populations of semai senoi: Potential mate pool analysis and simulation

Abstract

Two methods have been used to evaluate potential endogamy in three settlement populations of a swidden farming group, the Semai Senoi of Malaysia. One method involved determining the number of potential mates available to individuals in each population based on demographic structure and cultural rules concerning appropriate mates. A Monte Carlo simulation of Semai settlement populations was also carried out under two different regimes of mate choice. Both procedures suggest that individuals in the largest Semai settlements are potentially able to marry endogamously but that in smaller groups few potential mates are available and many persons must marry exogamously or remain unmarried. The relatively high rate of marital migration required among small settlement populations implies that newly founded small groups would be unlikely to become sufficiently isolated to form distinct breeding populations.     

Next‐generation phylogenetics takes root

It has been a tumultuous 5 years in phylogeography and phylogenetics during which both fields have struggled to harness the power of next‐generation sequencing (NGS) (Ekblom & Galindo 2010 ; McCormack et al. 2012a ). Fortunately, several methodological approaches appear to be taking root. In this issue of Molecular Ecology, O'Neill et al. 2013 ) employ one such method – parallel tagged sequencing (PTS) – to elucidate the phylogeography of a tiger salamander (Ambystoma tigrinum) species complex. This study demonstrates a practical application of NGS on a scale appropriate (and not overkill) for most biologists interested in phylogeography (~100 loci for ~100 individuals), and their results highlight several analytical challenges that lie ahead for researchers employing NGS techniques.     

Introduction: Patterns of generational change: convergent,reactive or emergent?

Abstract

The aim of this special issue is to map the extent of generational change among Britain's ethnic minority population and to understand some of the underlying processes involved. Is there greater integration across generations, or has the ‘new second generation’ in Britain remained isolated from the mainstream, perhaps as a result of the prejudice and discrimination from the white British that they have encountered or because of desires to maintain ethnic values and resist western practices? We also ask whether processes of generational change have proceeded at the same pace and direction in different domains – notably cultural, social, structural and political – and whether it has proceeded at the same pace among different minorities.     

Discrimination at settlement in barnacles: Laboratory and field experiments on settlement behaviour in response to settlement‐inducing protein complexes

A major driving force to mechanistic studies of barnacle gregarious settlement is to contribute to an understanding of observed patterns of settlement in nature. In particular, how cyprids perceive adult conspecifics and how they discriminate between conspecific and allospecific barnacles are questions which have taxed researchers for nearly 50 years. The putative, active component of adult barnacles to which the cyprids respond has long been known to be a glycoprotein, referred to here as the settlement‐inducing protein complex (SIPC). The present study examines the discriminatory abilities of laboratory‐reared Balanus amphitrite and wild Semibalanus balanoides cyprids at settlement. Using a recently developed nitrocellulose membrane‐choice settlement assay, laboratory studies revealed that both species settled at a significantly higher rate on regions of membrane on which crude conspecific SIPC had been adsorbed compared to untreated regions. Moreover, when offered a choice between conspecific and allospecific SIPC, a trend to greater settlement on the conspecific regions was observed. The membrane assay was also evaluated in field trials using real‐time video footage of cyprid searching behaviour. Of 211 S. balanoides cyprids recorded during exploratory behaviour, only one settled. Exploratory behaviour was, however, clearly associated with regions of the membrane treated with either conspecific or allospecific (B. Amphitrite) SIPC compared to untreated regions. These results are generally in accord with previous reports on the discriminatory abilities of barnacle cyprids and suggest that the membrane assay may be usefully applied to field studies of settlement behaviour.     

Transfer of a lipophilic drug (temoporfin) between small unilamellar liposomes and human plasma proteins: influence of membrane composition on vesicle integrity and release characteristics

Abstract

The introduction of PEG lipid conjugates into lipid bilayers leads to long circulating liposomes with improved pharmacokinetics and pharmacodynamics characteristics. The concentration range of PEG-lipids is limited by their micelle forming properties. We investigated two phosphatidyl oligoglycerols as potential alternatives to PEG-lipid conjugates and compared their micelle forming properties after incorporation of increasing amounts of oligoglycerols into gel-phase liposomes via cryo-transmission electron microscopy. The incorporation of highly hydrophobic drugs into liposomes makes water soluble formulations possible and improves the therapeutic properties of the drug. We incorporated the hydrophobic photosensitizer temoporfin into liposomes varying in membrane fluidity and nature of surface modifying agents. The main purpose of this study was the investigation of liposome integrity and temoporfin incorporation stability in the presence of plasma. After incubation of temoporfin-loaded liposomes with human plasma for different time intervals, liposomes and the single lipoprotein fractions were separated via size-exclusion chromatography. Liposome stability and temoporfin distribution profile over the lipoprotein fractions were determined with the help of a non-exchangeable ³H-lipid label and ¹⁴C-labeled temoporfin. The results demonstrate that both oligoglycerols are suitable alternatives to PEG-lipid conjugates because of the lack of micelle forming properties, comparable liposome stability, and a reduced temoporfin transfer rate compared to PEG-lipids. Furthermore, the incorporation stability of temoporfin is – at least to some extent – influenced by membrane fluidity, indicating that fluid membranes may be better suited for retention of lipophilic drugs.     

Kannibalismus in Herxheim

Extreme rituals including anthropophagy In a settlement of the early Neolithic in Herxheim (South Palatinate) the manipulated remains of more than 500 human individuals were detected during excavations in an enclosure surrounding the settlement of the earliest farmers in this region; the human skeleton elements date to the time around 5000 B.C. Meticulous examinations of the in most cases extremely smashed bones yielded cut marks in significant places, comparable to similar traces on butchered animals. This observation and further evidence on the bone material brought forth the interpretation of ritual cannibalism in the frame of an hitherto unknown ceremony – an inimitable situation for prehistory so far. Luxury ceramic, precious stone tools and grinding stones – all of them intentionally destroyed – amplify the spectrum of findings, emphasizing the highly ritual character of the mysterious actions that took place in Herxheim 7000 years ago.     

Antimicrobial susceptibility of anaerobic bacteria in Bulgaria

ObjectivesThe antimicrobial susceptibility of anaerobic bacteria isolated from clinical specimens in the referent for Bulgaria anaerobic laboratory was studied in a period of 25 years/1983–2007/.MethodsNCCLS – recommended agar dilution methods were used. β-lactamase activity was determined with nitrocefin discs.ResultsThe 29 antimicrobial agents included in the study were divided according to their in vitro activity against the anaerobic isolates into 4 main groups for guiding empirical treatment: 1st group of metronidazole, chloramphenicol, meropenem, imipenem and combinations of β-lactam antibiotics with sulbactam – with high activity and drugs of choice for treatment; 2nd group – clindamycin, cefoxitin, carbenicillin/and azlocillin, piperacillin/ – with a good activity and low percent of resistant strains; 3rd group – of tetracycline and erythromycin with higher percent of resistant strains including the new macrolides as josamycin, clarithromycin, roxithromycin and azithromycin; 4th group – penicillins/ampicillin, amoxicillin, penicillin/and cephalosporins/cefamandole, cefazolin, cefotaxime and cefoperazone/ – not suitable for treatment of infections including Bacteroides fragilis group strains, with a very high percent of resistant strains, probably due to β-lactamase activity in most of the strains.ConclusionA continued updating and a follow-up in the changes of antibiotic susceptibility are necessary in every country as resistance patterns vary not only between geographical regions but also even among medical centers and hospitals which may be connected with differences in antibiotic usage in man and animals.     

The effect of the high-fat diet supplemented with various forms of chromium on rats body composition,liver metabolism and organ histology Cr in liver metabolism and histology of selected organs

BackgroundIn the present study, we hypothesized that feeding rats a high-fat diet negatively affects liver metabolism and function and disturbs the histology of some internal organs. We also postulated that there is a form of chromium whose administration alleviates the negative effects of a high-fat diet in rats.MethodsTo verify the hypotheses, we tested the effect of various forms of chrome (picolinate – Cr-Pic, Chromium(III)-methionine complex – Cr-Met, and chrome nanoparticles – Cr-NPs) applied in the recommended amount of 0.3 mg/kg of BW on growth parameters, body fat, liver metabolism and functional disorders, and histological parameters of selected internal organs in rats fed a standard (S) or high-fat diet (F). The experiment was conducted on 56 male outbred Wistar rats (Rattus norvegicus. Cmdb:WI) randomly divided into eight experimental groups. For eight weeks the rats received a standard or high-fat diet, without Cr or with Cr at 0.3 mg/kg diet in the form of Cr-Pic, Cr-Met or Cr-NPs.Results and conclusionThe use of a F diet disrupted the lipid-carbohydrate profile, worsened liver metabolism and function, reduced the expression of hepatic PPAR-α and leaded to negative changes in the histological image of internal organs - liver, kidneys and pancreas. The 8-week use of an chromium supplement in a F diet, regardless of the form used, did not improve the ratio of fat tissue to lean tissue, worsened liver function and negatively affected on the histological image of the liver, kidneys and pancreas. However, the most negative changes in lipid-carbohydrate metabolism and liver functioning were observed with CrNPs supplementation.     

Online mediations in transnational spaces: cosmopolitan (re)formations of belonging and identity in the Turkish diaspora

Abstract

The lives of transnational groups and individuals are marked by a spatial and imaginary split: a phenomenon wherein identity, belonging and representation have become increasingly elusive concepts, and the realm of the ‘cultural’ vastly important. And, the theoretical compasses of cosmopolitanism and transnationalism are particularly relevant and illuminating in considering social space, mediated communication and belonging in relation to urban diasporic communities and gendered subjectivities. The aim of this paper is to address expressions of identity and belonging at the intersection of online communicative practice and offline spatial formations, with a focus on the specificities of gendered constructions of sociality and subjectivity in the diaspora.