Early Childcare and Education in a Post-Industrial Landscape: Inequalities in Proximity to Active and Relic Manufacturing in Metropolitan Providence, Rhode Island.

Children are uniquely vulnerable to environmental health risks associated with industrial contamination, and early childcare and education (ECE) facilities are important sites for potential exposure to environmental contaminants. Emerging research on historic urban industry has additionally demonstrated that urban environmental risk accumulates historically and spatially across urban landscapes. Accordingly, this study pairs cross-sectional data on licensed childcare facilities with longitudinal manufacturing site data in Providence, Rhode Island. We use these data to investigate the proximity of ECE facilities to active and relic manufacturing sites, controlling for a range of organizational- and tract-level characteristics. Results show that type of childcare facility (center-based vs. in-home) and language of instruction (Spanish vs. English) are important predictors of children's proximity to industrial lands, past and present. These findings indicate that Spanish-speaking children in Providence may experience a "double jeopardy" in the form of disproportionate legacy environmental hazards at ECE as well as at home-suggesting that the historical nature of urban industrial land use is an important mechanism of environmental inequality for young children.

On boat: A magnificent panorama of River Basin in Tang Dynasty.

Based on the framework of historical geography, this paper studies the panorama of Chinese river basin in Tang Dynasty, and attempts to reveal the connection between boat and panorama of river basin. Research uses logistic regression as method, takes 13,100 five-characters and eight-lines poems in Tang Dynasty as samples to study the influencing factors of boat. Results show that a total of 218 Chinese characters have a statistically significant effect on the factor of boat (P ≤ 0.05), including 141 risk factors and 77 protective factors. This research deepens the historical geography understanding of following nine aspects related to the "boat" in Tang Dynasty: ① waterfront regions, ② natural water systems, ③ aquatic animals & plants, ④ official travel, ⑤ fishery & commerce, ⑥ boat driving, ⑦ wonderful time, ⑧ emotion of boat trip, ⑨ daily life on boat.

Land use and social-ecological legacies of Rio de Janeiro's Atlantic urban forests: from charcoal production to novel ecosystems.

Historical ecology is an important tool in deciphering human-environment interactions imprinted on landscapes throughout time. However, gaps of knowledge still remain regarding the land use legacies hidden in the current Atlantic Forest landscape; and also regarding how this information can help management of the remaining forest cover. The social-ecological systems framework was applied to understand charcoal production in the urban forests of Rio de Janeiro, from the nineteenth to mid-twentieth century, and their current social-ecological legacies. Charcoal production carried out by former enslaved populations, allowed for rapid forest regeneration. Forest thinning instead of forest felling was carried out by small groups in these urban remnant forests, sparing large native trees and facilitating natural regeneration. Currently, more than one thousand former charcoal production sites are accounted for hidden underneath the forest cover. The forest landscape of today is a result of novel forest successional trajectories that recovered structural and functional attributes of the forest ecosystem. However, this came at the cost of social invisibility and marginalization of these populations. The management practices of charcoal production dispersed in the landscape is one of Rio de Janeiro's most important, albeit hidden, land use legacies. Currently, the forested landscape is comprised of regenerated forests, both structurally and functionally sound, though with significant changes in species composition including the introduction of exotic species throughout recent centuries. These urban forests are today a complex mosaic of novel ecosystems, with rich biocultural diversity, and together with managed lands and well conserved forest tracts, provide not only livelihood and sustenance for forest dwelling families, but also important ecosystem services for the entire population of Rio de Janeiro. We believe that these concepts and frameworks can offer practical solutions for urban forest management, taking into account the biocultural diversity of Rio de Janeiro, increasing awareness of sustainability and promoting food security.

Data set for French historical light aids to navigation (F-LAN) covering the period 1775-1929.

F-LAN is a geospatial data set that documents hundreds of coastal lights that guided ships around France from medieval times to 1929. F-LAN provides visibility range for individual lights. The authors collected all data from scholarly literature, historical coastal navigational charts, and official lighthouse surveys. F-LAN allows users to track the provision of coastal lighting over time. It complements the existing LAN dataset for England and Wales. Thanks to F-LAN it is now possible to map and analyse light coverage for France over two centuries. It can be used to analyse coastal routing, infrastructure investment and the relationship between accidents and the provision of light in any given area.

[Evolution of Sichuan Dao-di herbs recorded in ancient works of materia medica of different historical periods].

Sichuan province is very famous for its abundant resources of traditional Chinese medicine(TCM).However, within the scope of administrative division of Sichuan province, the origin records of Dao-di herbs in different historical periods show a dynamic distribution process. On the basis of carefully sorting out the geographical scope of Sichuan province in different historical periods, this article focuses on the textual research of the Dao-di herbs in Sichuan province recorded in the seven mainstream ancient works of materia medica.The results showed that, according to the records of Mingyi bielu and Bencaojing Jizhu, the main distribution areas of Dao-di herbs were mainly in the central and eastern regions of Sichuan province, mainly including Moschus, Coptidis Rhizoma, Zingiberis Rhizoma, Aconiti Lateralis Radix Praeparata and most of the rest materia medica had become unused in the historical process. Qianjin Yifang records that the distribution areas of Dao-di herbs were mainly in the middle and eastern part of Sichuan province.Aconiti Radix, Lateralis Radix Praeparata, Zingiberis Rhizoma, Notopterygii Rhizoma et Radix are still the Dao-di herbs of Sichuan province. According to the book of Bencao Tujing,the main distribution areas of Dao-di herbs are Chengdu Plain, Yibin and Santai, While Toosendan Fructus, Chuanxiong Rhizoma, Zanthoxyli Pericarpium, Aconiti Radix are still the Dao-di herbs of Sichuan province. Ben Cao Gang Mu records the place of origin as Sichuan.Coptidis Rhizoma, Toosendan Fructus, Cyathulae Radix are still the Dao-di herbs of Sichuan pro-vince. Yaowu Chuchanbian and Zengding Weiyao Tiaobian records the place of origin as Sichuan, as well as Kangding, Songpan, Dujiang-yan, Jiangyou, Nanchong, Ya'an, etc. Moschus, Coptidis Rhizoma, Eucommiae Cortex, Phellodendri Chinensis Cortex are still the Dao-di herbs of Sichuan province. The results of this article provide a new understanding of the history and distribution changes of Dao-di herbs in Sichuan province, and can help to further understand the formation connotation of Sichuan Dao-di herbs.

[Formation history of Dao-di herbs in Dabie Mountains].

Dabie Mountains, a unique transition area of subtropical and warm temperate zone, span Anhui, Hubei and Henan pro-vinces with a humid and suitable climate. It is rich in traditional Chinese medicine resources including many Dao-di herbs, and has a profound culture of traditional Chinese medicine with many herbalists in the past. This paper combed the historical geography of Dabie Mountains and development vein of medicinal materials recorded in history, and a textual research on the historical evolution of Dao-di herbs and special herbs in Dabie Mountains was carried out. The administrative region of Dabie Mountains has been changing constantly in history, which includes 25 counties and districts of six cities in Anhui, Henan and Hubei provinces at present. Dabie Mountains abound in a variety of Chinese herbal medicines, which have been recorded in herbal works in the past dynasties and local chronicles in detail. The recorded Dao-di herbs Dendrobium huoshanense, Artemisia argyi, and Poria cocos are well-known in China, and the output of Gastrodia elata, Ganoderma lucidum, and P. cocos is in the forefront of the country. Additionally, there are still many local special herbs emerging in modern times. In a word, this paper reviewed development of historical geography and ancient records of medicinal materials in Dabie Mountains, and made a textual research on the Dao-di herbs and special herbs, will provide a reference for the mo-dern research and intellectual property protection of Dao-di herbs in Dabie Mountains.

Locating the Boundaries of the Nuclear North: Arctic Biology, Contaminated Caribou, and the Problem of the Threshold.

This essay is a historical-geographical account of how scientists and public health officials conceptualized and assessed northern radioactive exposures in the late 1950s and 1960s. The detection of radionuclides in caribou bodies in northern Canada both demonstrated the global reach of nuclear fallout and revealed the unevenness of toxic relations and radioactive exposures. Following the documentation of the lichen-caribou-human pathway of exposure, Canadian public health officials became increasingly concerned about the possibility of heightened radioactive exposures among Indigenous northerners. Between 1963 and 1969, scientists and officials with Canada's Radiation Protection Division (RPD) coordinated an interdepartmental monitoring program through which they sought to determine whether the consumption of contaminated caribou meat had caused radioactive exposure levels in northern communities to exceed the officially recognized "safe limits." In 1969, the northern monitoring program was suspended after officials determined that radionuclide body burdens had not exceeded the threshold for radioactive exposures. While the RPD emphasized its development of a technoscientific approach to measuring radioactive body burdens, the legitimacy of the monitoring program was linked directly to interdepartmental relations within Canada's colonial northern administration. I situate the northern monitoring program within broader shifts in public health approaches to radiation protection and use Gabrielle Hecht's concept of nuclearity to demonstrate how RPD officials employed the logic of the threshold in their assessment of radioactive exposures.

Evolution of Sichuan Dao-di herbs recorded in ancient works of materia medica of different historical periods / 中国中药杂志

Sichuan province is very famous for its abundant resources of traditional Chinese medicine(TCM).However, within the scope of administrative division of Sichuan province, the origin records of Dao-di herbs in different historical periods show a dynamic distribution process. On the basis of carefully sorting out the geographical scope of Sichuan province in different historical periods, this article focuses on the textual research of the Dao-di herbs in Sichuan province recorded in the seven mainstream ancient works of materia medica.The results showed that, according to the records of Mingyi bielu and Bencaojing Jizhu, the main distribution areas of Dao-di herbs were mainly in the central and eastern regions of Sichuan province, mainly including Moschus, Coptidis Rhizoma, Zingiberis Rhizoma, Aconiti Lateralis Radix Praeparata and most of the rest materia medica had become unused in the historical process. Qianjin Yifang records that the distribution areas of Dao-di herbs were mainly in the middle and eastern part of Sichuan province.Aconiti Radix, Lateralis Radix Praeparata, Zingiberis Rhizoma, Notopterygii Rhizoma et Radix are still the Dao-di herbs of Sichuan province. According to the book of Bencao Tujing,the main distribution areas of Dao-di herbs are Chengdu Plain, Yibin and Santai, While Toosendan Fructus, Chuanxiong Rhizoma, Zanthoxyli Pericarpium, Aconiti Radix are still the Dao-di herbs of Sichuan province. Ben Cao Gang Mu records the place of origin as Sichuan.Coptidis Rhizoma, Toosendan Fructus, Cyathulae Radix are still the Dao-di herbs of Sichuan pro-vince. Yaowu Chuchanbian and Zengding Weiyao Tiaobian records the place of origin as Sichuan, as well as Kangding, Songpan, Dujiang-yan, Jiangyou, Nanchong, Ya'an, etc. Moschus, Coptidis Rhizoma, Eucommiae Cortex, Phellodendri Chinensis Cortex are still the Dao-di herbs of Sichuan province. The results of this article provide a new understanding of the history and distribution changes of Dao-di herbs in Sichuan province, and can help to further understand the formation connotation of Sichuan Dao-di herbs.

Formation history of Dao-di herbs in Dabie Mountains / 中国中药杂志

Dabie Mountains, a unique transition area of subtropical and warm temperate zone, span Anhui, Hubei and Henan pro-vinces with a humid and suitable climate. It is rich in traditional Chinese medicine resources including many Dao-di herbs, and has a profound culture of traditional Chinese medicine with many herbalists in the past. This paper combed the historical geography of Dabie Mountains and development vein of medicinal materials recorded in history, and a textual research on the historical evolution of Dao-di herbs and special herbs in Dabie Mountains was carried out. The administrative region of Dabie Mountains has been changing constantly in history, which includes 25 counties and districts of six cities in Anhui, Henan and Hubei provinces at present. Dabie Mountains abound in a variety of Chinese herbal medicines, which have been recorded in herbal works in the past dynasties and local chronicles in detail. The recorded Dao-di herbs Dendrobium huoshanense, Artemisia argyi, and Poria cocos are well-known in China, and the output of Gastrodia elata, Ganoderma lucidum, and P. cocos is in the forefront of the country. Additionally, there are still many local special herbs emerging in modern times. In a word, this paper reviewed development of historical geography and ancient records of medicinal materials in Dabie Mountains, and made a textual research on the Dao-di herbs and special herbs, will provide a reference for the mo-dern research and intellectual property protection of Dao-di herbs in Dabie Mountains.

Dataset for historical lighthouses and light aids to navigation (LAN). England and Wales, 1514-1911.

We describe 'LAN', a geospatial data set that documents the development of coastal lights that guided ships around England and Wales from medieval times to 1911. As an additional benefit, LAN provides visibility range of individual lights from 1831. The authors collected all data from scholarly literature and historical coastal navigational charts and official lighthouse surveys. The sources were selected for their good coverage of coastal lighting. LAN allows users to track the development of coastal lighting over time by presenting snapshots of this service as it was during several benchmark periods.

Rapid digitization to reclaim thematic maps of white-tailed deer density from 1982 and 2003 in the conterminous US.

BACKGROUND: Despite availability of valuable ecological data in published thematic maps, manual methods to transfer published maps to a more accessible digital format are time-intensive. Application of object-based image analysis makes digitization faster. METHODS: Using object-based image analysis followed by random forests classification, we rapidly digitized choropleth maps of white-tailed deer (Odocoileus virginianus) densities in the conterminous US during 1982 and 2001 to 2005 (hereafter, 2003), allowing access to deer density information stored in images. RESULTS: The digitization process took about one day each per deer density map, of which about two hours was computer processing time, which will differ due to factors such as resolution and number of objects. Deer were present in 4.75 million km2 (60% of the area) and 5.56 million km2 (70%) during 1982 and 2003, respectively. Population and density in areas with deer presence were 17.15 million and 3.6 deer/km2 during 1982 and 29.93 million and 5.4 deer/km2 during 2003. Greatest densities were 7.2 deer/km2 in Georgia during 1982 and 14.6 deer/km2 in Wisconsin during 2003. Six states had deer densities ≥9.8 deer/km2 during 2003. Colorado, Idaho, and Oregon had greatest increases in population and area of deer presence, and deer expansion is likely to continue into western states. Error in these estimates may be similar to error resulting from differential reporting by state agencies. Deer densities likely are within historical levels in most of the US. DISCUSSION: This method rapidly reclaimed informational value of deer density maps, enabling greater analysis, and similarly may be applied to digitize a variety of published maps to geographic information system layers, which permit greater analysis.

Database of historic ports and coastal sailing routes in England and Wales.

This data paper presents a reconstruction of historical ports and coastal routes in England and Wales during the age of the sailing ship, ending at the beginning of the twentieth century. The dataset was created by an amalgamation of twenty different sources, including geographical data, primary sources and secondary literature. Ports found in historical documents were listed by year of appearance and georeferenced. Ports that appear in multiple sources were listed only once. Coastal routes between ports were drawn based on navigation charts and bathymetry data, distinguishing five categories with different characteristics. Visibility from the coast was deduced from elevation rasters and lighthouse locations. Subsequently both ports and coastal routes were checked using topological rules to ensure the connectivity of the network. The data is provided in shapefile format with all the attributes and can be analysed using Geographical Information Systems (GIS) for different types of geographical and historical studies.

Chorasmia Medical School from the beginning until the Mongol invasion.

In research on the history of medicine, less attention is paid to the subject of historical geography. Considering the importance of this subject in the history of science, this paper discusses one of the most important science centers in the world. This outstanding medical research center was located in Gorganch city, Chorasmia area, in the Eastern part of the Islamic. Chorasmia medical school was one of the important Iranian medical schools before the Mongols' attack. Its history (305-1231 A.D.) can be divided into three eras; Ale Iraq, Ale Ma'mun, and era of the Khwarazmian dynasty. This geographical area in the Northeast of Iran has escaped the notice of researchers in recent studies. The presence of great Persian physicians and scientists throughout history in this area indicates its scientific importance. The present article focuses on Chorasmia Medical School since its establishment until the Mongols' attack.

MITOCHONDRIAL DNA VARIATION AND EVOLUTION OF THE DEATH VALLEY PUPFISHES (CYPRINODON, CYPRINODONTIDAE).

A phylogenetic analysis of mitochondrial DNA (mtDNA) restriction sites was used to examine the geographic history of the Cyprinodon nevadensis complex of pupfishes, a group of four species (seven extant subspp.) in two endorheic (closed) basins of the Death Valley System in California and Nevada (Owens River Valley and Ash Meadows-Death Valley). The mtDNA results suggest that the group contains mtDNAs from two divergent clades. One such clade is represented by the mtDNAs of the Owens Valley pupfish (C. radiosus) and the existing species in the Colorado River (C. macularius), while the other includes the mtDNAs of the Ash Meadows-Death Valley species (C. nevadensis, C. salinus, and C. diabolis) and a species located much farther to the east (C. fontinalis from the Guzman Basin, Chihuahua, Mexico). These results, together with evidence from other studies, suggest two separate invasions of the Death Valley System by pupfishes carrying phylogenetically divergent mtDNAs. The C. nevadensis complex apparently is either an artificial group or else it is monophyletic and its genetic history includes loss of the original mtDNA in either Owens Valley or Ash Meadows-Death Valley following genetic introgression after an invasion by a pupfish carrying a divergent mtDNA.