Tin Miner Research Articles

Cheong Yoke Choy (1873–1958): A Grandson Looks Back

Colleagues and friends remember Professor Cheong Kee Cheok as an eminently qualified and respected economist, who served first at the University of Malaya and later at the World Bank. Few were aware, however, that he came from a very wealthy and prominent family. His grandfather, Cheong Yoke Choy, was a pioneering and highly successful tin miner and banker in early twentieth-century Kuala Lumpur. However, Professor Cheong rarely talked about his grandfather. It was only a few years before Professor Cheong passed away that he decided to write about the senior Cheong. Part of the reason for eventually working on the biography was because Professor Cheong had, by then, become interested in Chinese family business and had researched and published on several Chinese business groups. He was able, therefore, to see his grandfather within the framework of early Chinese entrepreneurs and the values they held. Equally important, he had family records, as well as access to the memories of surviving family members.

JCSE01.04 Risk Modeling for the Early Detection of Tin Miner Lung Cancer in China

JCSE01.04 Risk Modeling for the Early Detection of Tin Miner Lung Cancer in China

Absence of an association of human polyomavirus and papillomavirus infection with lung cancer in China: a nested case-control study.

BackgroundStudies of human polyomavirus (HPyV) infection and lung cancer are limited and those regarding the association of human papillomavirus (HPV) infection and lung cancer have produced inconsistent results.MethodsWe conducted a nested case–control study to assess the association between incident lung cancer of various histologies and evidence of prior infection with HPyVs and HPVs. We selected serum from 183 cases and 217 frequency matched controls from the Yunnan Tin Miner’s Cohort study, which was designed to identify biomarkers for early detection of lung cancer. Using multiplex liquid bead microarray (LBMA) antibody assays, we tested for antibodies to the VP1 structural protein and small T antigen (ST-Ag) of Merkel cell, KI, and WU HPyVs. We also tested for antibodies against HPV L1 structural proteins (high-risk types 16, 18, 31, 33, 52, and 58 and low-risk types 6 and 11) and E6 and E7 oncoproteins (high risk types 16 and 18). Measures of antibody reactivity were log transformed and analyzed using logistic regression.ResultsWe found no association between KIV, WUV, and MCV antibody levels and incident lung cancer (P-corrected for multiple comparisons >0.10 for all trend tests). We also found no association with HPV-16, 18, 31, 33, 52, and 58 seropositivity (P-corrected for multiple comparisons >0.05 for all).ConclusionsFuture studies of infectious etiologies of lung cancer should look beyond HPyVs and HPVs as candidate infectious agents.Electronic supplementary materialThe online version of this article (doi:10.1186/s12885-016-2381-3) contains supplementary material, which is available to authorized users.

Mercury Transfer During Pregnancy and Breastfeeding: Hair Mercury Concentrations as Biomarker

Hair mercury (HHg) concentration is a biomarker of exposure that is widely used to assess environmental contamination by fish methylmercury and neurodevelopment in children. In the Rio Madeira basin (Brazilian Amazon), total HHg concentrations in 649 mother-infant pairs were measured at birth (prenatal exposure) and after 6 months of exclusive breastfeeding; these mother-infant pairs were from high fish-eating communities (urban, n = 232; rural, n = 35; and Riverine, n = 262) and low fish-eating tin-miner settlers (n = 120). Differences in kinetics were seen between Hg exposure from fish consumption and environmental exposure to a tin-ore mining environment. Overall maternal HHg concentrations (at childbirth and after 6 months of lactation) were higher than those of infant HHg. However, the relative change in HHg after 6 months of lactation showed that mothers decreased HHg while infants increased HHg. The relative change showed a consistently higher increase for girls than boys with a statistical significance only in high fish-eating mothers. The correlation coefficients between maternal and newborn hair were high and statistically significant for mothers living in urban (r = 0.66, p < 0.001), rural (r = 0.89, p < 0.001), and Riverine (r = 0.89, p < 0.001) communities not for tin miner settlers (r = 0.07, p = 0.427). After 6 months of exclusive breastfeeding, correlation coefficients showed high correlation coefficients and statistical significance for all groups (urban, r = 0.73, p < 0.001; rural, r = 0.88, p < 0.001; Riverine, r = 0.91, p < 0.001) except for Tin miners (r = -0.07, p = 0.428). A linear model analysis was used to assess the longitudinal associations of maternal total HHg and total HHg at birth (0 days) and 6 months of age in exclusively breastfed infants. Regression analysis significantly predicted HHg in newborn from maternal HHg for high fish-eating maternal-infant pairs. The concentration of mercury accumulated in newborn tissues (in utero and during breastfeeding) relevant to both, maternal sources and infant exposure, can be reliably assessed from maternal hair.

Fish Consumption during Pregnancy, Mercury Transfer, and Birth Weight along the Madeira River Basin in Amazonia

Birth weight can be a predictor of maternal health issues related to nutrition and environmental contaminants. Total hair mercury (HHg) concentration was studied as an indicator of both fish consumption and methylmercury exposure in mothers (and newborns) living in selected low income areas of the Madeira River basin, Amazonia, Brazil. This cohort study (n = 1,433) consisted of traditional riverines (n = 396), riverines who had moved to urban (n = 676) and rural (n = 67) settings, and tin miner settlers (n = 294). Median maternal HHg was significantly different (p = 0.00001) between riverine (12.1 µg·g−1), rural (7.82 µg·g−1), urban (5.4 µg·g−1), and tin miner (4.5 µg·g−1) groups studied. The same trend (of medians) was observed for newborns’ HHg which also showed significant differences between riverine (3.0 µg·g−1), rural (2.0 µg·g−1), urban (1.5 µg·g−1), and tin miner (0.8 µg·g−1) groups. The correlation between maternal and newborn HHg was statistically significant in the riverine (r = 0.8952; p = 0.0001), urban (r = 0.6744; p = 0.0001), and rural (r = 0.8416; p = 0.0001) groups but not in the mother-infant pairs in the tin miner group (r = 0.0638; p = 0.2752). Birth weight was significantly different among groups but did not show a pattern consistent with that of fish consumption (and HHg). A multiple regression analysis showed that only family income and gestational age had a significant impact on birth weight. Conclusions: Maternal HHg is an important biomarker of maternal fish consumption and of methylmercury exposure during pregnancy. However, in these Amazonian groups, only maternal education and gestational age seemed to affect birth weight positively.

The health of the Cornish tin miner 1840-1914.

The health of the Cornish tin miner 1840-1914.

THE ABDICATION OF THE EMIR OF BAUCHI YAKUBU III: A REPLY

AN EX-COLONIAL OFFICER in Northern Nigeria, A. Trevor Clark, after consultation with another and with the wife of a third, has reacted to my article published in Afrzcan Affairs (Vol. 92, No. 369, Oct. 1993). A few of his comments, observations and discussions are of value. For instance, the concern that 'readers of an academic journal of historical record' should not be misled is well founded; the comment on the composition of the emir's advisory council whose membership in the early 1950s, unlike the original article's inadvertent generalization, had not been the same ab initio is well taken as is the correction that the tin miner, M. Thillard, was not a British citizen but French.l So too is the observation on the photograph which appeared on p. 592.2 Beyond these average memory recollections, the other accusations are less well-founded. Editorially restricted in length, however, only the more fundamental misunderstanding can be addressed here,3 more so since readers of this journal have access to both the original article and the subsequent comments. By virtue of his official status, the writer may well have been an eye-witness to Emir Yakubu's abdication. Nonetheless, his perception was circumscribed by his narrow experience as a 'bush officer' while the

I Spent My Life in the Mines: The Story of Juan Rojas, Bolivian Tin Miner. JUNE NASH

<i>I Spent My Life in the Mines: The Story of Juan Rojas, Bolivian Tin Miner.</i> JUNE NASH

I spent my life in the mines: the story of Juan Rojas, Bolivian tin miner

Nash's introduction gives an overview of Bolivian history from the 1930s to the present, emphasizing the role of peasants and workers in political and economic change.

Crush syndrome in a Cornish tin miner

A miner buried by a fall of rock in a Cornish tin mine developed a severe crush syndrome. He survived after early amputation of a crushed leg, peritoneal haemodialysis and other treatment.

Let Me Speak! Testimony of Domitila, A Woman of the Bolivian Mines.

First published in English in 1978, this classic book contains the testimony of Domitila Barrios de Chungara, the wife of a Bolivian tin miner. Blending firsthand accounts with astute political analysis, Domitila describes the hardships endured by Bolivia's vast working class and her own efforts at organizing women in the mining community. The result is a gripping narrative of class struggle and repression, an important social document that illuminates the reality of capitalist exploitation in 1970s Bolivia. Domitila Barrios de Chungara was born in 1937 in the Siglo XX mining town in Bolivia. She became politically active in the 1960s and, in 1975, participated in the UN International Women's Year Tribunal in Mexico. In 2005 she was nominated alongside 999 other Women for a collective Nobel Peace Prize.

Working-Class Feminism: Domitila and the Housewives Committee

The history of women, like that of other oppressed groups, has been hidden from us only now to be recovered painstakingly, bit by bit, as the result of the pressure of a social movement. Much of the history of working class, poor, and peasant women is not only buried but lost forever, never having been written down in official documents, diaries, or novels. We will never know very much about the dreams, the struggles, the details of daily life of ordinary women who have gone before us. But the same mistake need not be made about the present. The lives of ordinary women, particularly those that intersect with the popular movements of our time, can be recorded for future generations to come. Domitila's life story, as told to Moema Viezzer, a Brazilian journalist and anthropologist, is a rich and fascinating contribution to the growing collection of books, tapes, and films about the lives of working-class women organizers. But it is much more than that. It is explicitly conceived as a tool for political organizing. Domitila tells her story as the wife of a Bolivian tin miner, a leader of the Housewives Committee, and member of the mining community of Siglo XX so that,

Let Me Speak!

Let Me Speak!, just published by Monthly Review Press (see ad on page 55) is the story of Domitila Barrios de Chungara, told by herself and recorded by Moema Viezzer, a Brazilian journalist and anthropologist. Domitila, daughter of a Bolivian tin miner and wife of a miner, mother of seven children, leader of the "Housewives' Committee of the Siglo XX Mines," has been a longtime participant in the fierce and often bloody struggles of the mining community in its confrontations with the mine administrators and their "advisers" from the CIA and the U.S. embassy. Le Monde Diplomatique, on the occasion of the book's publication in French, had this to say about it: "It is rare that a voice is given to a woman of the people, who, struggling for daily bread, politicizes herself and becomes a leader of her people.… At the mines it was often the women who decided to start a strike when the cupboard was bare.... Domitila understands much—she whose child was aborted in prison under torture…" The following are excerpts from Domitila's moving and profoundly perceptive account. The translation is by Victoria Ortiz. —The EditorsThis article can also be found at the Monthly Review website, where most recent articles are published in full.Click here to purchase a PDF version of this article at the Monthly Review website.

The Stannaries: A Study of the English Tin Miner.

The Stannaries: A Study of the English Tin Miner.

The Stannaries: A Study of the English Tin Miner

The Stannaries: A Study of the English Tin Miner

&lt;italic&gt;The Stannaries: a Study of the English Tin Miner&lt;/italic&gt;. By &lt;sc&gt;George Randall Lewis&lt;/sc&gt;, Ph.D. [Harvard Economic Studies, volume III.] (Boston and New York: Houghton, Mifflin and Company. 1908. Pp. xviii, 299.)

The Stannaries: a Study of the English Tin Miner. By George Randall Lewis, Ph.D. [Harvard Economic Studies, volume III.] (Boston and New York: Houghton, Mifflin and Company. 1908. Pp. xviii, 299.) Get access The Stannaries: a Study of the English Tin Miner. By Lewis George Randall, Ph.D. [Harvard Economic Studies, volume III.] (Boston and New York: Houghton, Mifflin and Company. 1908. Pp. xviii, 299.) E. P. Cheyney E. P. Cheyney Search for other works by this author on: Oxford Academic Google Scholar The American Historical Review, Volume 13, Issue 4, July 1908, Pages 841–843, https://doi.org/10.1086/ahr/13.4.841 Published: 01 July 1908

The Stannaries: A Study of the English Tin Miner. George Randall Lewis

Previous articleNext article FreeBook ReviewsThe Stannaries: A Study of the English Tin Miner. George Randall Lewis W. C. MitchellW. C. Mitchell Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by Journal of Political Economy Volume 16, Number 6Jun., 1908 Article DOIhttps://doi.org/10.1086/251448 Views: 95Total views on this site Copyright 1908 The University of Chicago PressPDF download Crossref reports no articles citing this article.