Hydrologic and Hydraulic Modeling Methods Developed for Philadelphia’s Long-Term CSO Control Program - Green City, Clean Waters

2016 ◽  
Vol 2016 (4) ◽  
pp. 56-65
Author(s):  
Gary D Martens ◽  
Rajesh Rajan ◽  
Dwayne Myers ◽  
Henry Fan ◽  
Julie Midgette
2015 ◽  
Vol 8 (3) ◽  
pp. 276-283
Author(s):  
Travis L. Almquist ◽  
Katie L. Wirt ◽  
Jason W. Adams ◽  
Rodney G. Lym

AbstractYellow toadflax (Linaria vulgaris P. Mill.) infestations in North Dakota increased 300-fold from 1997 to 2011, when the plant was added to the state noxious weed list. Long-term control of other invasive species had included biological control agents, but no effective agents for yellow toadflax had been identified, so a control program using herbicides was needed. The objective was to shift from short-term control with picloram applied in the fall at maximum allowed rates to long-term management with minimal nontarget species impact with an adaptive management approach. Yellow toadflax control was increased from an average of 64% with picloram at 1,120 g ha−1 alone 12 mo after treatment (MAT) to over 90% when applied with diflufenzopyr while the picloram rate was reduced 50%. Yellow toadflax control with aminocyclopyrachlor applied at 140 g ha−1 ranged from 91 to 49% 12 MAT when applied in June or September, respectively. In contrast, yellow toadflax control with picloram plus dicamba plus diflufenzopyr averaged > 90% regardless of application date during the growing season. Land managers now have at least two options for long-term yellow toadflax control with a wide window of application timing. The goal of replacing a single high-use–rate herbicide treatment was met but both picloram and aminocyclopyrachlor can injure many desirable forbs. However, application timing can now be adjusted to have the least impact on nontarget species. The adaptive development program led to a 58% reduction in yellow toadflax infestations in North Dakota by 2014.


2021 ◽  
Vol 39 (7) ◽  
Author(s):  
Svitlana Bondarenko ◽  
Halyna Tkachuk ◽  
Iryna Klochan ◽  
Andrey Mokhnenko ◽  
Iryna Liganenko ◽  
...  

The purpose of this study is formation of tools for forecasting the economic security of the enterprise by modeling methods when changing investment support. The relevance of this study is due to the need to solve the problem of modernization management system of the enterprise by implementing the project management of economic security of the enterprise in the implementation of investment programs.The variant of model offered economic security of the enterprise. This model involves the implementation of the process of adaptive management, based on the definition of safe limits of longterm growth of the enterprise. It has established that the ratio of self-organization processes and managerial influences depends on the value of the self-organization coefficient. The calculated value of adaptive potential on the basis of the indicator of self-organization as the dynamic indicator of maintenance of perspective growth of the enterprise on the allocated purposes has offered. This indicator can serve as a criterion for assessing the effectiveness of the management system of the enterprise in relation to the project management of economic security of the enterprise in the implementation of investment programs of key goals of long-term growth of the enterprise.


Author(s):  
P. Carnevale ◽  
J. C. Toto ◽  
V. Foumane ◽  
S. Carnevale ◽  
F. Gay

A long term village scale vector control programme was implemented since 2007 in 8 villages around Balombo town (Benguela Province) to compare the efficacy of 4 methods of vector control (1,2). One of them are deltamethrin treated Long Lasting Nets (“LLIN”) “Perma©Net 2.0” with a complete coverage of every sleeping units in 2008 in 2 villages, Caala and Cahata. Cahata was surveyed for 10 years with regular parasitological cross sectional parasitological surveys. During the 3 years following LLIN implementation, a check of their actual usage in every house, or on sleeping units of each patient examined during every parasitological surveys showed that 3 years after the full LLIN distribution less than 50% were still in use, and this percentage regularly decreased to reach 10% and less in 2015 (with 0% during the survey done in October 2005). But Plasmodium falciparum prevalence still decreased with low level until 2014 then it started (slightly) increasing in 2015, and the following years, which correspond to both the National malaria outbreak and the least percentage of LLIN used! But even at that time the plasmodial load was significantly lower in “LLIN users” than in non users showing some maintained personal protection. Even 10 years after the full coverage in LLIN no rebound effect was actually noticed in such natural conditions of life and plasmodial prevalence was even 2 times lower than before the implementation of vector control. Information gained were of great importance for the National Malaria Control program in term of nets replacement with 50% missing in 3 years underlining the need of “stronger” nets and community sensitization for the sustainability of positive results gained with LLIN.


2017 ◽  
Vol 20 (6) ◽  
pp. 1431-1447 ◽  
Author(s):  
Ricardo E. Gürtler ◽  
Lucía I. Rodríguez-Planes ◽  
Guillermo Gil ◽  
V. Martín Izquierdo ◽  
Marcelo Cavicchia ◽  
...  

2018 ◽  
Vol 25 (6) ◽  
pp. 871-875 ◽  
Author(s):  
Cinda L Hugos ◽  
Michelle H Cameron ◽  
Zunqiu Chen ◽  
Yiyi Chen ◽  
Dennis Bourdette

Background: A four-site RCT of Fatigue: Take Control (FTC), a multicomponent group program, found no significant differences from a control program, MS: Take Control (MSTC), in fatigue on the Modified Fatigue Impact Scale (MFIS) through 6 months. Objective: Assess FTC for a delayed effect on fatigue. Methods: Of 78 subjects at one site, 74 randomized to FTC or MSTC completed the MFIS at 12 months. Results: Compared to baseline, FTC produced greater improvements in MFIS scores than MSTC (FTC −8.9 (confidence interval (CI): 32.2, 45), MSTC −2.5 (CI 39.6, 47.7), p = 0.03) at 12 months. Conclusion: The delayed effect of FTC on fatigue suggests the need for longer follow-up when assessing interventions for fatigue.


2020 ◽  
Vol 305 ◽  
pp. 00016
Author(s):  
Ion Antonio Tache ◽  
Carmen Tache

Pipelines around the world are in danger due to ageing, deposits and corrosion. Leaky fittings and cracks are an environmental hazard and cause the loss of valuable resources such as drinking water, gas, or oil. The pipelines may get corroded internally due to the nature of the fluid flowing inside and due to various other factors. The environmental and societal impact of infrastructure failure is a primary consideration for today’s pipeline operators. Without implementing safety measures and having a corrosion control program, corrosion makes transporting hazardous material unsafe. There are many methods NACE (National Association of Corrosion Engineers) recommends as part of a successful corrosion control program to protect oil and gas pipelines. Coatings and linings applied to pipelines whether above or below ground and often used in combination with cathodic protection. Different linings may be used for internal corrosion protection, provided the lining material does not degrade following long-term exposure to the transported fluid, at the pipeline pressure and temperature conditions.


1989 ◽  
Vol 10 (3) ◽  
pp. 223-239 ◽  
Author(s):  
Elbert D. Glover ◽  
Deborah L. Albritton ◽  
Chris Mansfield

Given the health and social consequences of tobacco, a policy analysis strategy consisting of three approaches; legal, market, and health education is presented. A unifying feature of the strategy recommendations is that each addresses both prevention of the initiation of tobacco habits and encouragement of cessation. Overall, the strategies focus exclusively on policy alternative initiatives oriented toward reducing the toll of smoking within the United States. The manuscript addresses the conflict that public policy must resolve between the long-term negative health effects and the short-term positive economic interests of tobacco. The critical idea is that policy makers must think beyond local efforts and recognize that they can be a part of a larger network movement working in different ways, yet cooperating for better effectiveness and support to decrease and ultimately stop the use of tobacco products.


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