A Paleoenvironmental Study Tracking Eutrophication, Mining Pollution, and Climate Change in Niven Lake, the First Sewage Lagoon of Yellowknife (Northwest Territories) + Supplementary Appendix 1 (See Article Tools)

ARCTIC ◽  
2018 ◽  
Vol 71 (2) ◽  
Author(s):  
Emily M. Stewart ◽  
Kathryn E. Hargan ◽  
Branaavan Sivarajah ◽  
Linda E. Kimpe ◽  
Jules M. Blais ◽  
...  
Keyword(s):  
Northwest Territories ◽  
Fecal Contamination ◽  
Phosphorus Loading ◽  
Disposal Site ◽  
Diagnostic Ratios ◽  
Wastewater Disposal ◽  
Recent Climate ◽  
Sewage Contamination ◽  
History Of ◽  
The City

Niven Lake was the first wastewater disposal site for the City of Yellowknife (Northwest Territories, Canada), receiving domestic sewage for more than 30 years. Here, we used a high-resolution sediment core to track past sewage inputs to Niven Lake by comparing changes in sedimentary sterols and three diagnostic ratios for human fecal contamination, as well as biological assemblages and overall lake production, with the known history of sewage inputs to the lake from 1948 to 1981. Coprostanol, often considered the best indicator of human fecal contamination, increased by ~8% between depths of 7.5 cm and 5 cm (~1950 to 1981) and was more reliable in tracking sewage contamination than diagnostic sterol ratios. Muted responses in subfossil diatom and chironomid assemblages were noted during the time of sewage inputs, and similar responses have been reported in other eutrophic Arctic sites, as well as in many macrophyte-dominated shallow lakes in general. More marked shifts in diatoms and chironomids occurred a decade after the end of sewage inputs, in the 1990s, a time that closely aligned with the warmest years on record for Yellowknife. This post–sewage era response was indicative of anoxia and possibly of positive feedback from internal phosphorus loading. The response may have been facilitated by recent climate warming, resulting in a lagging recovery from eutrophication. Changes in the diatoms and chironomids of Niven Lake were also indicative of metal pollution, suggesting that the lake has experienced the compounding effects of arsenic contamination from nearby gold mining.

History of the City of Rome in the Middle Ages

2009 ◽  
Author(s):  
Ferdinand Gregorovius ◽  
Annie Hamilton
Keyword(s):  
Middle Ages ◽  
History Of ◽  
The City ◽  
The Middle Ages

History of the City of Rome in the Middle Ages

2009 ◽  
Author(s):  
Ferdinand Gregorovius ◽  
Annie Hamilton
Keyword(s):  
Middle Ages ◽  
History Of ◽  
The City ◽  
The Middle Ages

Ras al Khaimah: further archaeological discoveries

Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi
Keyword(s):  
United Arab Emirates ◽  
The State ◽  
Focused Attention ◽  
North East ◽  
The North ◽  
History Of ◽  
The City

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.

Review: Urban Latino Cultures: La Vida Latina en LA by Gustavo Leclerc, Raúl Villa, and Michael J. Dear (eds.)

1999 ◽  
Vol 22 (1) ◽  
pp. 126-128
Author(s):  
Catherine S. Ramirez
Keyword(s):  
Twentieth Century ◽  
Los Angeles ◽  
Mexican American ◽  
History Of ◽  
Crime Wave ◽  
Eighteenth And Nineteenth Centuries ◽  
The City ◽  
History Of Los Angeles

Throughout the twentieth century (and now the twenty-first), the specter of a Latina/o past, present, and future has haunted the myth of Los Angeles as a sunny, bucolic paradise. At the same time it has loomed behind narratives of the city as a dystopic, urban nightmare. In the 1940s Carey McWilliams pointed to the fabrication of a “Spanish fantasy heritage” that made Los Angeles the bygone home of fair señoritas, genteel caballeros and benevolent mission padres. Meanwhile, the dominant Angeleno press invented a “zoot” (read Mexican-American) crime wave. Unlike the aristocratic, European Californias/os of lore, the Mexican/American “gangsters” of the 1940s were described as racial mongrels. What's more, the newspapers explicitly identified them as the sons and daughters of immigrants-thus eliding any link they may have had to the Californias/os of the eighteenth and nineteenth centuries or to the history of Los Angeles in general.

Appreciation of the importance of pregravid preparation and reproductive attitudes of women of childbearing age in the city of Omsk

GYNECOLOGY ◽  
2018 ◽  
Vol 20 (6) ◽  
pp. 48-52
Author(s):  
E N Kravchenko ◽  
R A Morgunov
Keyword(s):  
Women Of Childbearing Age ◽  
Childbearing Age ◽  
Pregnancy And Childbirth ◽  
Perinatal Center ◽  
History Of ◽  
Group A ◽  
Group B ◽  
Complicated Pregnancy ◽  
The Relationship ◽  
The City

The aim of the study. Assess the importance of pregravid preparation and outcomes of pregnancy and childbirth, depending on the reproductive attitudes of women in the city of Omsk. Materials and methods. The study included 92 women who were divided into groups: group A (n=43) - women whose pregnancy was planned; group B (n=49) - women whose pregnancy occurred accidentally. Each group was divided into subgroups depending on age: from 18 to 30 and from 31 to 49 years. For each patient included in the study, a specially designed map was filled out. These patients were interviewed at the City Clinical Perinatal Center. Results. Comparative analysis revealed the relationship between the reproductive settings of women of childbearing age and the peculiarity of the course of pregnancy and childbirth in these patients. Summary. The majority of women of fertile age are married: in subgroup AA - 25 (96.2%), AB - 13 (76.5%), BA - 25 (92.6%), BB - 20 (91.0%). The predominant number of women of fertile age have one or more abortions: in subgroup AA - 12 (46.2%), AB - 6 (35.3%), in subgroups of comparison BA - 8 (29.6%), BB - 6 (27.3%). More than half of the women of fertile age surveyed have a history of untreated cervical pathology (from 40.8% to 64.7%). The course of pregnancy in women planning pregnancy in most cases proceeded without complications: in subgroup AA - 13 (50.0%), AB - 11 (64.7%). The most common cause of complicated pregnancy in women whose pregnancy occurred accidentally is the threat of spontaneous miscarriage: in subgroup BA - 15 (55.6%), BB - 16 (72.7%). The uncomplicated course of labor more often [subgroup AA - 19 (73.0%), AB - 12 (70.6%)] was observed in women whose pregnancy was planned and they were motivated to give birth to a healthy child.

FORMATION OF CULTURE OF THE CITY OF JIZAK

2019 ◽  
Vol 22 (2) ◽  
pp. 62-65
Author(s):  
Dilbar Abdurasulova ◽  
◽  
Akbar Màjidov
Keyword(s):  
Ancient History ◽  
Greco Roman ◽  
History Of ◽  
The City ◽  
Chinese Travelers

This article provide that Uzbekistan is one of the oldest centers of culture, in particular, the works of Greco-Roman historians, Arab and Chinese travelers and geographers serve invaluable source for studying the ancient history of Jizzak

Reenacting Migration, Past and Present

Transfers ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 127-130
Author(s):  
Mariana C. Françozo
Keyword(s):  
Maritime History ◽  
Christopher Columbus ◽  
Exhibition Space ◽  
European Capital Of Culture ◽  
Air Space ◽  
History Of ◽  
The City

Located at the old harbor of the city of Genoa, the modern Galata Museo del Mare was inaugurated as part of the commemoration of Genoa as the 2004 European Capital of Culture. Only twelve years later, the museum proudly welcomes 200,000 visitors annually into its twenty-eight galleries, organized in an impressive exhibition space of 10,000 square meters, showcasing 4,300 objects. While the aim of the museum is to tell the maritime history of Genoa—ranging from Christopher Columbus to an open-air space showcasing the story of the Genoese shipyard—it is the exhibition on migration to and from Italy that will truly impress the visitor.

Wastewater Treatment and Disposal in the City of Dubrovnik

1989 ◽  
Vol 21 (1) ◽  
pp. 55-66
Author(s):  
J. Margeta ◽  
J. Pupovac ◽  
B. Ivančić
Keyword(s):  
Wastewater Treatment ◽  
Environmental Protection ◽  
Rapid Development ◽  
Specific Method ◽  
Wastewater Disposal ◽  
Sewerage System ◽  
Seaside Resort ◽  
Coastal Sea ◽  
Treatment And Disposal ◽  
The City

Dubrovnik is the most popular tourist seaside resort in Yugoslavia. The rapid development of tourism has necessitated appropriate environmental protection, particularly with regard to the coastal sea. Consequently, the city has constructed a plant for the treatment of wastewater and a submarine outfall. The characteristics of the sewerage system and the coastal sea meant that the wastewater disposal system required a specific method of construction and treatment. This paper presents the system adopted for Dubrovnik and the methodology used to choose the system. Special attention is paid to the problems and drawbacks which occurred during design and operation of the system, as well as to the measures undertaken afterwards for reconstruction of the system.

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