scholarly journals Advances and limitations of using satellites to monitor cyanobacterial harmful algal blooms

2019 ◽  
Vol 31 ◽  
Author(s):  
Igor Ogashawara
Keyword(s):  
United States Of America ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
The United States ◽  
Observation Data ◽  
The Usa ◽  
Temporal And Spatial ◽  
Earth Observation Data ◽  
Remote Sensing Techniques ◽  
Cyanobacterial Harmful Algal Blooms

Abstract The use of satellites for monitoring forests is common and well-known practice. However, the operational remote monitoring of water quality from space is still under development. In the United States of America (USA), the use of this type of data is just now being applied to operationally monitor cyanobacterial harmful algal blooms (CHABs). This powerful tool can be used to generate temporal and spatial assessments of CHABs, however the validation of the retrieved information is still a challenge - especially in tropical and equatorial countries. This commentary discusses the advantages and challenges of current initiatives that use Earth Observation data for managing CHABs such as “Lake Erie’s HAB Bulletin” and “Project CYAN” - both in the USA. Additionally, it was also discussed the application of remote sensing techniques to monitor CHABs in Brazilian inland waters.

Russian Federation and the United States of America: geostrategic directions to manage the Ukrainian crisis

2019 ◽  
pp. 123
Author(s):  
Attarid Awadh Abdulhameed
Keyword(s):  
United States ◽  
European Union ◽  
National Security ◽  
Russian Federation ◽  
United States Of America ◽  
The United States ◽  
The European Union ◽  
The Usa ◽  
Ukrainian Crisis ◽  
Zero Sum

Ukrainia Remains of huge importance to Russian Strategy because of its Strategic importance. For being a privileged Postion in new Eurasia, without its existence there would be no logical resons for eastward Expansion by European Powers.  As well as in Connection with the progress of Ukrainian is no less important for the USA (VSD, NDI, CIA, or pentagon) and the European Union with all organs, and this is announced by John Kerry. There has always ben Russian Fear and Fear of any move by NATO or USA in the area that it poses a threat to  Russians national Security and its independent role and in funence  on its forces especially the Navy Forces. There for, the Crisis manyement was not Zero sum game, there are gains and offset losses, but Russia does not accept this and want a Zero Sun game because the USA. And European exteance is a Foot hold in Regin Which Russian sees as a threat to its national security and want to monopolize control in the strategic Qirim.

scholarly journals Marine harmful algal blooms (HABs) in the United States: History, current status and future trends

Harmful Algae ◽  
2021 ◽  
pp. 101975
Author(s):  
Donald M. Anderson ◽  
Elizabeth Fensin ◽  
Christopher J. Gobler ◽  
Alicia E. Hoeglund ◽  
Katherine A. Hubbard ◽  
...  
Keyword(s):  
United States ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
United States History ◽  
The United States ◽  
Current Status ◽  
Future Trends ◽  
States History

scholarly journals Examining the Economic and Environmental Impacts of COVID-19 Using Earth Observation Data

2020 ◽  
Vol 13 (1) ◽  
pp. 5
Author(s):  
William Straka ◽  
Shobha Kondragunta ◽  
Zigang Wei ◽  
Hai Zhang ◽  
Steven D. Miller ◽  
...  
Keyword(s):  
Air Quality ◽  
Los Angeles ◽  
Environmental Impacts ◽  
Demographic Data ◽  
The United States ◽  
Earth Observation ◽  
Observation Data ◽  
Washington Dc ◽  
Mobility Data ◽  
Earth Observation Data

The COVID-19 pandemic has infected almost 73 million people and is responsible for over 1.63 million fatalities worldwide since early December 2019, when it was first reported in Wuhan, China. In the early stages of the pandemic, social distancing measures, such as lockdown restrictions, were applied in a non-uniform way across the world to reduce the spread of the virus. While such restrictions contributed to flattening the curve in places like Italy, Germany, and South Korea, it plunged the economy in the United States to a level of recession not seen since WWII, while also improving air quality due to the reduced mobility. Using daily Earth observation data (Day/Night Band (DNB) from the National Oceanic and Atmospheric Administration Suomi-NPP and NO2 measurements from the TROPOspheric Monitoring Instrument TROPOMI) along with monthly averaged cell phone derived mobility data, we examined the economic and environmental impacts of lockdowns in Los Angeles, California; Chicago, Illinois; Washington DC from February to April 2020—encompassing the most profound shutdown measures taken in the U.S. The preliminary analysis revealed that the reduction in mobility involved two major observable impacts: (i) improved air quality (a reduction in NO2 and PM2.5 concentration), but (ii) reduced economic activity (a decrease in energy consumption as measured by the radiance from the DNB data) that impacted on gross domestic product, poverty levels, and the unemployment rate. With the continuing rise of COVID-19 cases and declining economic conditions, such knowledge can be combined with unemployment and demographic data to develop policies and strategies for the safe reopening of the economy while preserving our environment and protecting vulnerable populations susceptible to COVID-19 infection.

scholarly journals Agricultural Conservation Practices and Aquatic Ecological Responses

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1687
Author(s):  
Richard E. Lizotte ◽  
Peter C. Smiley ◽  
Robert B. Gillespie ◽  
Scott S. Knight
Keyword(s):  
Aquatic Ecosystems ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Soil Health ◽  
Conservation Agriculture ◽  
Agricultural Runoff ◽  
The United States ◽  
Ecosystem Structure ◽  
Ecological Responses ◽  
And Function

Conservation agriculture practices (CAs) have been internationally promoted and used for decades to enhance soil health and mitigate soil loss. An additional benefit of CAs has been mitigation of agricultural runoff impacts on aquatic ecosystems. Countries across the globe have agricultural agencies that provide programs for farmers to implement a variety of CAs. Increasingly there is a need to demonstrate that CAs can provide ecological improvements in aquatic ecosystems. Growing global concerns of lost habitat, biodiversity, and ecosystem services, increased eutrophication and associated harmful algal blooms are expected to intensify with increasing global populations and changing climate. We conducted a literature review identifying 88 studies linking CAs to aquatic ecological responses since 2000. Most studies were conducted in North America (78%), primarily the United States (73%), within the framework of the USDA Conservation Effects Assessment Project. Identified studies most frequently documented macroinvertebrate (31%), fish (28%), and algal (20%) responses to riparian (29%), wetland (18%), or combinations (32%) of CAs and/or responses to eutrophication (27%) and pesticide contamination (23%). Notable research gaps include better understanding of biogeochemistry with CAs, quantitative links between varying CAs and ecological responses, and linkages of CAs with aquatic ecosystem structure and function.

Beerheide v Suthers: A Case Study Concerning Religion in Prisons in the USA

2005 ◽  
Vol 8 (36) ◽  
pp. 67-73
Author(s):  
Scot M Peterson
Keyword(s):  
United States ◽  
Civil Society ◽  
United States Of America ◽  
Religious Beliefs ◽  
The United States ◽  
Religious Institution ◽  
The Usa ◽  
Kosher Food ◽  
Bible Reading

The penitentiary in the United States of America originated as a religious institution. Its roots lie in the belief that inmates could reform if they were given an opportunity to engage in reflection, prayer, Bible-reading and work, thus establishing a new personal foundation for functioning as productive members of the larger society. Not surprisingly, given American's predilection for maintaining a secular civil society, this original foundation for the prison eventually fell from favour, and American penological theories became more sociological or psychological in nature. The fact remains, however, that society in the United States is broadly religious, and prisons continue to address the religious beliefs of inmates and how to accommodate those beliefs in a penological setting. This comment provides a case study on this topic, based on littigation concerning the provision of kosher food to Orthodox inmates in the prisons in Colorado.

External Validation of the Cardiac Surgery Score in a Quaternary Hospital in the United States of America

2021 ◽  
pp. 088506662110668
Author(s):  
Asha Singh ◽  
Chen Liang ◽  
Stephanie L. Mick ◽  
Chiedozie Udeh
Keyword(s):  
United States ◽  
Cardiac Surgery ◽  
United States Of America ◽  
Predictive Accuracy ◽  
External Validation ◽  
Cleveland Clinic ◽  
Area Under The Curve ◽  
The United States ◽  
Mortality Data ◽  
The Usa

Background The Cardiac Surgery Score (CASUS) was developed to assist in predicting post-cardiac surgery mortality using parameters measured in the intensive care unit. It is calculated by assigning points to ten physiologic variables and adding them to obtain a score (additive CASUS), or by logistic regression to weight the variables and estimate the probability of mortality (logistic CASUS). Both additive and logistic CASUS have been externally validated elsewhere, but not yet in the United States of America (USA). This study aims to validate CASUS in a quaternary hospital in the USA and compare the predictive performance of additive to logistic CASUS in this setting. Methods Additive and logistic CASUS (postoperative days 1-5) were calculated for 7098 patients at Cleveland Clinic from January 2015 to February 2017. 30-day mortality data were abstracted from institutional records and the Death Registries for Ohio State and the Centers for Disease Control. Given a low event rate, model discrimination was assessed by area under the curve (AUROC), partial AUROC (pAUC), and average precision (AP). Calibration was assessed by curves and quantified using Harrell's Emax, and Integrated Calibration Index (ICI). Results 30-day mortality rate was 1.37%. For additive CASUS, odds ratio for mortality was 1.41 (1.35-1.46, P <0.001). Additive and logistic CASUS had comparable pAUC and AUROC (all >0.83). However, additive CASUS had greater AP, especially on postoperative day 1 (0.22 vs. 0.11). Additive CASUS had better calibration curves, and lower Emax, and ICI on all days. Conclusions Additive and logistic CASUS discriminated well for postoperative 30-day mortality in our quaternary center in the USA, however logistic CASUS under-predicted mortality in our cohort. Given its ease of calculation, and better predictive accuracy, additive CASUS may be the preferred model for postoperative use. Validation in more typical cardiac surgery centers in the USA is recommended.

Response of bacterial communities to cyanobacterial harmful algal blooms in Lake Taihu, China

Harmful Algae ◽  
2017 ◽  
Vol 68 ◽  
pp. 168-177 ◽  
Author(s):  
Xiaomei Su ◽  
Alan D. Steinman ◽  
Xiangming Tang ◽  
Qingju Xue ◽  
Yanyan Zhao ◽  
...  
Keyword(s):  
Bacterial Communities ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Lake Taihu ◽  
Cyanobacterial Harmful Algal Blooms

scholarly journals Current Nuclear Strategies and Arsenals of the United States of America and the Russian Federation

2021 ◽  
Vol 30 (4) ◽  
pp. 23-44
Author(s):  
Adam Potočňák
Keyword(s):  
Cold War ◽  
United States Of America ◽  
The United States ◽  
The Other ◽  
Nuclear Forces ◽  
Nuclear Strategy ◽  
The Usa ◽  
The Russian Federation ◽  
The Cold War ◽  
The U.S

The article holistically analyses current strategies for the use and development of nuclear forces of the USA and Russia and analytically reflects their mutual doctrinal interactions. It deals with the conditions under which the U.S. and Russia may opt for using their nuclear weapons and reflects also related issues of modernization and development of their actual nuclear forces. The author argues that both superpowers did not manage to abandon the Cold War logic or avoid erroneous, distorted or exaggerated assumptions about the intentions of the other side. The text concludes with a summary of possible changes and adaptations of the American nuclear strategy under the Biden administration as part of the assumed strategy update expected for 2022.

scholarly journals Serialised Novels in the Polish Emigré Press in the USA, 1881–1918

2022 ◽  
Vol 124 ◽  
pp. 207-238
Author(s):  
Elżbieta Nowosielska
Keyword(s):  
United States ◽  
United States Of America ◽  
The United States ◽  
Editorial Boards ◽  
Everyday Lives ◽  
Financial Difficulties ◽  
The Everyday ◽  
The Usa ◽  
Historical Themes

This article discusses serialised novels published before 1918 in the Polish émigré press in the United States of America. These works were a popular feature of dailies and weeklies, but the periodicals’ regular financial difficulties meant that it was books published several years or indeed several decades earlier in Europe which were most often serialised. Consequently, most of the works that appeared in the periodicals failed to reflect contemporary literary trends while also overlooking subjects relevant to the everyday lives of Poles abroad. Still, the prevailing patriotic and historical themes complemented the values that many editorial boards subscribed to.

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