scholarly journals Novel ‘chemical cocktails' in inland waters are a consequence of the freshwater salinization syndrome

2018 ◽  
Vol 374 (1764) ◽  
pp. 20180017 ◽  
Author(s):  
Sujay S. Kaushal ◽  
Gene E. Likens ◽  
Michael L. Pace ◽  
Shahan Haq ◽  
Kelsey L. Wood ◽  
...  
Keyword(s):  
North America ◽  
Base Cation ◽  
Specific Conductance ◽  
Inland Waters ◽  
Accelerated Weathering ◽  
Chemical Mixtures ◽  
Metropolitan Regions ◽  
The Usa ◽  
Using Data ◽  
Freshwater Salinization

Widespread changes in water temperatures, salinity, alkalinity and pH have been documented in inland waters in North America, which influence ion exchange, weathering rates, chemical solubility and contaminant toxicity. Increasing major ion concentrations from pollution, human-accelerated weathering and saltwater intrusion contribute to multiple ecological stressors such as changing ionic strength and pH and mobilization of chemical mixtures resulting in the freshwater salinization syndrome (FSS). Here, we explore novel combinations of elements, which are transported together as chemical mixtures containing salts, nutrients and metals as a consequence of FSS. First, we show that base cation concentrations have increased in regions primarily in North America and Europe over 100 years. Second, we show interactions between specific conductance, pH, nitrate and metals using data from greater than 20 streams located in different regions of the USA. Finally, salinization experiments and routine monitoring demonstrate mobilization of chemical mixtures of cations, metals and nutrients in 10 streams draining the Washington, DC–Baltimore, MD metropolitan regions. Freshwater salinization mobilizes diverse chemical mixtures influencing drinking water quality, infrastructure corrosion, freshwater CO 2 concentrations and biodiversity. Most regulations currently target individual contaminants, but FSS requires managing mobilization of multiple chemical mixtures and interacting ecological stressors as consequences of freshwater salinization. This article is part of the theme issue ‘Salt in freshwaters: causes, ecological consequences and future prospects’.

scholarly journals Are tidal predictions a good guide to future extremes? – a critique of the Witness King Tides Project

2020 ◽  
Author(s):  
John Hunter
Keyword(s):  
North America ◽  
West Coast ◽  
East Coast ◽  
Tide Gauge ◽  
Tide Gauge Records ◽  
The West ◽  
The World ◽  
The Usa ◽  
Good Guide ◽  
Using Data

Abstract. An analysis of the viability of the Witness King Tides Project (hereafter called WKT) using data from the GESLA-2 database of quasi-global tide-gauge records is described. The results indicate regions of the world where WKT should perform well (e.g. the west coast of the USA) and others where it would not (e.g. the east coast of North America). Recommendations are made both for assessments that should be made prior to a WKT project, and also for an alternative to WKT projects.

scholarly journals Are tidal predictions a good guide to future extremes? – a critique of the Witness King Tides project

Ocean Science ◽  
2020 ◽  
Vol 16 (3) ◽  
pp. 703-714
Author(s):  
John Hunter
Keyword(s):  
North America ◽  
Sea Level ◽  
East Coast ◽  
Tide Gauge ◽  
Tide Gauge Records ◽  
The West ◽  
The World ◽  
The Usa ◽  
Good Guide ◽  
Using Data

Abstract. An analysis of the viability of the Witness King Tides project (hereafter called WKT) using data from the GESLA-2 database of quasi-global tide-gauge records is described. The results indicate regions of the world where a key criterion for a WKT project (that it be executed on a day of unusually high sea level) would likely be met (e.g. the west coast of the USA) and others where it would not (e.g. the east coast of North America). Recommendations are made both for assessments that should be made prior to a WKT project and also for an alternative to WKT projects.

Association between E-cigarette use and chronic obstructive pulmonary disease in non-asthmatic adults in the USA

2020 ◽  
Author(s):  
Godfred O Antwi ◽  
Darson L Rhodes
Keyword(s):  
Sex Education ◽  
Smoking Status ◽  
Secondary Data ◽  
Chronic Obstructive ◽  
Behavioral Risk ◽  
Cigarette Use ◽  
Obstructive Pulmonary Disease ◽  
The Usa ◽  
Potential Link ◽  
Using Data

Abstract Background Concern about the health impacts of e-cigarette use is growing; however, limited research exists regarding potential long-term health effects of this behavior. This study explored the relationship between e-cigarette use and COPD in a sample of US adults. Methods A secondary data analysis using data from the 2018 Behavioral Risk Factor Surveillance Survey in the USA was computed to examine associations between e-cigarette use and COPD controlling for conventional cigarette smoking status, past month leisure physical activity and demographic characteristics including age, sex, education, race, marital status and body mass index. Results Significant associations between e-cigarette use and COPD among former combustible cigarette smokers and those who reported never using combustible cigarettes were found. Compared with never e-cigarette users, the odds of having COPD were significantly greater for daily e-cigarette users (OR = 1.53; 95% CI: 1.11–2.03), occasional users (OR = 1.43, 95% CI: 1.13–1.80) and former users (OR = 1.46 95% CI: 1.28–1.67). Conclusions Findings from this study indicate a potential link between e-cigarette use and COPD. Further research to explore the potential effects of e-cigarette on COPD is recommended.

Multi-stakeholder initiatives and the divergent construction and implementation of sustainable agriculture in the USA

2017 ◽  
Vol 34 (04) ◽  
pp. 293-303 ◽  
Author(s):  
Jason Konefal ◽  
Maki Hatanaka ◽  
Douglas H. Constance
Keyword(s):  
Sustainable Agriculture ◽  
Ecological Systems ◽  
Agricultural Sustainability ◽  
Power Relationships ◽  
Specialty Crops ◽  
Institutional Approach ◽  
Governance Practices ◽  
The Usa ◽  
Using Data ◽  
Multi Stakeholder

AbstractMulti-stakeholder initiatives (MSIs) have emerged as a leading institutional approach for advancing sustainability globally. This paper examines three prominent MSIs that have developed sustainability metrics and a standard for US agriculture: Field to Market, the Stewardship Index for Specialty Crops and the National Sustainable Agricultural Standard Initiative. Using data from interviews and content analysis of initiative reports, two sets of analyses are presented. First, building on Paul Thompson's tri-partite theorization of sustainability, how each initiative is conceptualizing agricultural sustainability is analyzed. We find that two contrasting visions of sustainable agriculture for the USA have emerged from the three MSIs. One vision is a resource sufficiency approach focused on eco-efficiencies and the other vision is a functional integrity approach that emphasizes the maintenance of resilient agricultural and ecological systems. Second, we examine the governance practices of the MSIs to explain why such divergent conceptualizations of sustainability have been mapped out. We find that far from being a neutral forum, the internal dynamics of MSIs often reflect and reproduce existing power relationships among stakeholders. In concluding, we suggest that incremental improvements in sustainability can be achieved using MSIs, but more transformative changes may require other forms of governance.

Firearms and Suicide in Australia

1990 ◽  
Vol 24 (4) ◽  
pp. 500-509 ◽  
Author(s):  
Christopher H. Cantor ◽  
Terry Lewin
Keyword(s):  
North America ◽  
Suicide Rate ◽  
Regional Analysis ◽  
The Elderly ◽  
Cultural Attitudes ◽  
Young Males ◽  
Suicide Rates ◽  
Firearm Suicide ◽  
Proportional Increase ◽  
Using Data

Australia has a moderate overall suicide rate but an extremely high male firearm suicide rate. Using data covering the years 1961–1985, a series of multiple regression based analyses were performed. During this period, overall suicide rates fell but firearm suicides remained constant with a resulting increase in the proportion of suicides by firearms. There has been an increase in suicides in the young offset by a decline in the elderly. Young males showed the greatest proportional increase in the use of firearms. A limited regional analysis supported the hypothesis that lack of legislative restrictions on long guns in Queensland with a greater household prevalence of such weapons and different cultural attitudes were associated with higher overall and firearm suicide rates. Such findings are consistent with reports from North America, although trends in Australia are more modest. Reducing the availability and cultural acceptance of firearms is likely to decrease suicide rates, especially in males.

Are atheist consumers less ethical? Investigating the role of religiosity and atheism on consumer ethics

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Denni Arli ◽  
Tuyet-Mai Nguyen ◽  
Phong Tuan Nham
Keyword(s):  
Consumer Ethics ◽  
Intrinsic Religiosity ◽  
Content Type ◽  
Ethical Behaviors ◽  
Segmentation Analysis ◽  
Study Results ◽  
Unethical Behaviors ◽  
The Usa ◽  
Using Data ◽  
The Impact

Purpose There is a perception that non-religious consumers are less ethical than religious consumers. Studies found prejudices against atheists around the world and assumed that those who committed unethical behavior were more likely to be atheists. Hence, first, the purpose of this study is to investigate the effect of consumers’ intrinsic religiosity, extrinsic religiosity and atheism on consumers’ ethical beliefs. Second, this study attempts to segment consumers and identify differences between these segments. Design/methodology/approach Using data from 235 study participants in the USA and 531 in Vietnam. Subsequently, a two-step cluster approach was used to identify segments within these samples. Findings The study results show consumers’ intrinsic religiosity negatively influences all consumers’ unethical beliefs. Similarly, atheism also negatively influences all consumers’ unethical beliefs. This study also complements other studies exploring consumer ethics in developing countries. In addition, the segmentation analysis produced unique segments. The results from both samples (USA and Vietnam) indicated that non-religious consumers are less likely to accept various unethical behaviors compared to religious consumers. Religious consumers are not necessarily more ethical and atheism consumers are not necessarily less ethical. In the end, are implications for business ethics, religious and non-religious leaders on how to view the impact of beliefs on consumer ethical behaviors. Originality/value This is one of the first few studies investigating the impact of atheism on consumer ethics. The results of this study further extend the knowledge of study in consumer ethics by comparing consumers’ religiosity and atheism.

Chrysomyxa abietis (needle rust of fir).

2021 ◽  
Author(s):  
Keyword(s):  
Life Cycle ◽  
New Zealand ◽  
North America ◽  
Rust Fungus ◽  
Significant Problem ◽  
Northern Europe ◽  
Native Range ◽  
Obligate Parasite ◽  
The Usa ◽  
Accidental Introduction

Abstract C. abietis is a microcyclic rust fungus; an obligate parasite completing its life cycle on species of Picea (spruce). Only the current year's needles of Picea are infected and those needles are shed early. Reported from northern Europe and Asia, the fungus is a Regulated Pest for the USA. It is absent from North America, where susceptible species are native, and Australia and New Zealand, where they are introduced. Although usually not a significant problem in its native range, because conditions are not favourable for heavy infections every year (Smith et al., 1988; Hansen, 1997), this rust could be more damaging as an invasive in other temperate areas. Due to the fact that small amounts of infection may be overlooked, accidental introduction could occur through importation of infected seedlings or young trees.

The role of conferences in doctoral student socialization

2018 ◽  
Vol 9 (2) ◽  
pp. 181-196 ◽  
Author(s):  
Aliya Kuzhabekova ◽  
Aizhan Temerbayeva
Keyword(s):  
Doctoral Students ◽  
Professional Socialization ◽  
Doctoral Student ◽  
Content Type ◽  
The Usa ◽  
Conference Attendance ◽  
Using Data ◽  
Student Socialization ◽  
Doctoral Student Socialization

PurposeThe purpose of this paper is to explore the role scholarly conferences play in professional socialization of doctoral students.Design/methodology/approachUsing data from 20 interviews on conference experiences of student attendees of a North American conference in social sciences, as well as on the conference experiences of students from various disciplines at a private research intensive university in the USA, the authors explored how research identity of doctoral students change over time as result of participation in conferences, how the process of socialization is shaped by advisers and peers and how the experiences vary depending on the characteristics of the participants.FindingsThe authors found that conferences play an important role in socialization, and the effect from conference attendance increases with the number of conferences attended. The study also showed that students undergo several stages in the process of their socialization, throughout which they develop greater agency and independence as scholars, as well as a more positive image of themselves as researchers, and become more strategic in their behavior. The results also point to the key role of adviser and peers in the process of socialization, whereby the former can provide direction and orientation, while the latter may offer support and opportunities for mutual learning or future collaboration. The authors also found a notable difference in the support provided by advisers between teaching and research-oriented universities.Originality/valueThe paper applies doctoral student socialization theory to the analysis of informal doctoral experiences outside the program of study.

scholarly journals Assessing the landscape of US postdoctoral salaries

2018 ◽  
Vol 9 (2) ◽  
pp. 213-242 ◽  
Author(s):  
Rodoniki Athanasiadou ◽  
Adriana Bankston ◽  
McKenzie Carlisle ◽  
Caroline A. Niziolek ◽  
Gary S. McDowell
Keyword(s):  
Geographic Region ◽  
Freedom Of Information ◽  
Pay Gap ◽  
Content Type ◽  
Postdoctoral Position ◽  
Job Titles ◽  
University Systems ◽  
The Usa ◽  
Job Title ◽  
Using Data

Purpose Postdocs make up a significant portion of the biomedical workforce. However, data about the postdoctoral position are generally scarce, and no systematic study of the landscape of individual postdoc salaries in the USA has previously been carried out. The purpose of this study was to assess actual salaries for postdocs using data gathered from US public institutions; determine how these salaries may vary with postdoc title, institutional funding and geographic region; and reflect on which institutional and federal policy measures may have the greatest impact on salaries nationally. Design/methodology/approach Freedom of Information Act Requests were submitted to US public universities or university systems containing campuses with at least 300 science, engineering and health postdocs, according to the 2015 National Science Foundation’s Survey of Graduate Students and Postdoctorates in Science and Engineering. Salaries and job titles of postdocs as of December 1, 2016, were requested. Findings Salaries and job titles for nearly 14,000 postdocs at 52 US institutions around December 1, 2016, were received. Individual postdoc names were also received for approximately 7,000 postdocs, and departmental affiliations were received for 4,000 postdocs. This exploratory study shows evidence of a postdoc gender pay gap, a significant influence of job title on postdoc salary and a complex relationship between salaries and the level of institutional National Institutes of Health/NSF funding. Originality/value These results provide insights into the ability of institutions to collate and report out annualized salary data on their postdocs, highlighting difficulties faced in tracking and reporting data on this population by institutional administration. Ultimately, these types of efforts, aimed at increasing transparency regarding the postdoctoral position, may lead to improved support for postdocs at all US institutions and allow greater agency for postdocs making decisions based on financial concerns.

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