Utilization of Ground Improvement for a Variety of Cost Effective Remediation and New Construction Topics for the Rail Industry

Author(s):  
Jeffrey R. Hill ◽  
Bernard Voor ◽  
Michael L. Kerr ◽  
Arthur D. Pengelly

The authors of the paper represent two firms that have completed hundreds of challenging subgrade and foundation projects for the rail industry. The intent of this paper is to educate the railroad business in general about alternative approaches to common geotechnical problems facing the railroad industry. Projects have been completed across the country in nearly all geological conditions, on all of the Class I carriers, Shortlines and Mass Transit systems. Successful remediation projects associated with challenging subsurface conditions across the United States, Canada and Mexico are covered. Case histories include jet grouting for low headroom earth retention and tunnel support, stone columns for embankment support, micropiles for low headroom bridge replacement, micropiles and soil nails for earth retention, compaction, and urethane grouting for settlement of existing structures. Projects discussed include background information such as project layout, drawings and test results. Each project is completed and has a positive track record, indicating success. Projects have been specially selected to demonstrate the ability of specialty foundation solutions applicable throughout North America. Each topic provides technically sound approaches to age-old Rail road subsurface challenges. Many of these topics are not addressed in the AREMA manual; however, one of the authors, is currently addressing these topics through a proposed section of AREMA chapter 8.

2005 ◽  
Vol 22 (3) ◽  
pp. 29-38
Author(s):  
Abid Ullah Jan

The Debate Question 1: Various commentators have frequently invoked the importance of moderate Muslims and the role that they can play in fighting extremism in the Muslim world. But it is not clear who is a moderate Muslim. The recent cancellation of Tariq Ramadan’s visa to the United States, the raids on several American Muslim organizations, and the near marginalization of mainstream American Muslims in North America pose the following question: If moderate Muslims are critical to an American victory in the war on terror, then why does the American government frequently take steps that undermine moderate Muslims? Perhaps there is a lack of clarity about who the moderate Muslims are. In your view, who are these moderate Muslims and what are their beliefs and politics? AUJ: The promotion of “moderate” Muslims is part of an extremist tendency sweeping the United States, unlike the situation in the Muslim world. It is the result of a war between two Americas: the America of ideals (e.g., of equality and justice) and the America of extremism, which has succumbed to self-interest groups and individuals. For the America of ideals, the Tariq Ramadan episode is a dark spot, one among many such episodes in recent times. Periodic episodes of tragedy are the hallmark of the America that has shifted its priorities under the pressure and manipulation of the extremists. These forces use all expedient means to sacrifice the wellbeing of the United States for self-interest and promotion of the Zionist state. This extremism entails a morbid dread of Islam. It never regards any Muslim as moderate unless one publicly rejects the Qur’an as “the final manifesto of God,”1 considering this belief a “disturbing cornerstone of Islam,”2 and submitting to the rejection of key parts of the Qur’an.3 Unquestioning support for Israel, along with all other American-approved dictatorships, is the minimum criterion.4 All other factors are irrelevant. The fascistic American track record of accepting “moderates” and rejecting “radicals” is clear.5 The final distinction is not defined by their adherence to Islam, but by the assumed threat they pose to the interests of these extremists. For example, a devout man, fervent in all of his personal rituals but not participating in political affairs, would be a “moderate,” whereas a marginally practicing Muslim with the zeal to voice his opposition to the injustice perpetrated by the extremists’America is classified as a “radical.” In the current political context, a moderate is one who is passive like the devout man, or active like the extremist “moderates” – the Muslim neomods – who openly promote the extremist agenda using Islamic interpretations or “Project Ijthihad”6 as a cover. Hence, the distinction is not academic or religious, but political. Two opposing factors prove this point. First, there are clear commands for Muslims to be moderate by default.7 Moderateness is a prerequisite for all Muslims, not a label of identity for some. Accordingly, Muslims cannot be part-time or partial Muslims (Qur’an 2:208) or reject part of the Qur’an (Qur’an 2:85).8 Hence, such religious labelling is irrelevant. Second, the extremists insist that strong belief in the totality of the Qur’an makes Muslims “Islamists.”9 That is why they believe themselves to be “absolutely at war with the vision of life that is prescribed to all Muslims in the Koran.”10 It means that the standards of “moderateness,” as set by the American extremists, are directed at neutralizing a preconceived threat. Under these circumstances, mere claims of being a “moderate” do not make any difference at all, as long as a Muslim is presented as a threat, however baseless, to the interests of extremist America. Similarly, the so-called extremism in the Muslim world is not the result of Muslims’faith. Rather, it is a function of the perpetually colonized and oppressed people due to the lack of true independence and a central authority to control and productively channel their energies. It is naïve to suggest that a few ill-informed “moderate” individuals or puppet regimes can emulate the abilities of an entire central authority (i.e., the Islamic state) and effect progress and positive meaningful change.


1995 ◽  
Vol 31 (5-6) ◽  
pp. 323-328 ◽  
Author(s):  
K. A. Reynolds ◽  
C. P. Gerba ◽  
I. L. Pepper

Sewage outfalls and storm water runoff introduces pathogenic human enteric viruses into marine coastal waters, which may pose a potential public health risk. Although members of the enterovirus group have been suggested as possible indicators of sewage pollution in marine waters, the lack of rapid, sensitive and cost effective methods have prevented routine monitoring in the United States. This study compared traditional cell culture and direct RT-PCR (reverse transcriptase-polymerase chain reaction) amplification for detection of an enterovirus. Poliovirus could be recovered from 100 L of artificial seawater with an average efficiency of 77%, using adsorption and elution from electronegative filters. Viruses were eluted from the filters with 1.5% beef extract for viruses (BEV) adjusted to pH 9.5 and reconcentrated by organic flocculation to a volume of 30 mL. Substances which interfered with detection by RT-PCR were removed by treatment of the concentrates with sephadex and chelex resins. Direct RT-PCR could detect 2.5 and 0.025 PFU (plaque forming units) for single (25 cycles) and double PCR (2 × 25 cycles) in 10 μL of pure culture poliovirus samples, respectively. These methods are currently being applied to assess the occurrence of enteroviruses at marine bathing beaches influenced by sewage discharges.


2021 ◽  
Vol 99 (Supplement_2) ◽  
pp. 36-36
Author(s):  
James E Miller ◽  
Joan M Burke ◽  
Thomas H Terrill

Abstract Nematode-trapping fungi are biological control agents used against the larval stages of gastrointestinal nematodes in livestock feces. These fungi are normal soil inhabitants where they feed on a variety of non-parasitic soil nematodes. Of the various fungi tested, Duddingtonia flagrans spores (BioWorma, International Animal Health Products, Australia) have been shown to survive passage through the gastrointestinal tract of ruminants. After defecation, the spores germinate and grow in the feces to form sticky, sophisticated traps/loops which are able to trap the developing larval stages in the fecal environment. This form of control has been successfully applied under field conditions and is an environmentally safe biological approach for forage-based feeding systems. BioWorma has recently been approved for use in the United States. The primary delivery system is mixing BioWorma into supplement feedstuffs daily where each animal has the opportunity to consume an adequate amount of the mixture. To achieve optimum control of larvae during the transmission season (May–October), BioWorma needs to be fed for a period of no shorter than 60 days, starting at the beginning of the grazing season (especially young after weaning). Feeding BioWorma to dams during late pregnancy and lactation will also help to reduce pasture contamination, especially for growing young that will graze the same pasture. Another delivery system is mixing BioWorma into loose mineral supplement where animals will consume it free choice. The mineral needs to be kept covered and dry. The spores cannot be incorporated into pellets as the heat of the pelleting process will kill the spores. One drawback in using BioWorma is the relatively high cost. Research is being conducted to evaluate other delivery schemes that could be more cost effective. This product is the only control method that targets nematodes on pasture, where a majority of the total population reside.


2020 ◽  
Vol 20 (3) ◽  
pp. 158-175
Author(s):  
Marcia Singal Zubrow

AbstractThis article is designed for law librarians based outside the United States. The paper, written by Marcia Zubrow, provides basic information about the United States legal system and its sources. This background foundation to the article is important in understanding how to effectively use the two major U.S. databases, Lexis and Westlaw. The author describes the contents of the two databases within the context of the background information. Search techniques, including advance searching strategies, are described.


2021 ◽  
Vol 8 (2) ◽  
pp. 136-142
Author(s):  
Agnes M. Varghese ◽  
Misaki N. Natsuaki

In March 2020, the World Health Organization (WHO) declared COVID-19 a pandemic. Among the massive shutdowns that occurred across the United States in response, all K-12 schools in California closed to protect the health of students. However, such a closure and its resulting consequences were associated with a host of negative mental health implications for youth. Furthermore, many of these youth may not have had adequate resources to tackle issues impacting their psyche in this unprecedented time. Social and emotional learning (SEL), a method in which children can acquire the knowledge and skills to understand and manage emotions, has a proven track record of positive social, emotional, educational, and career consequences. The California Department of Education should convene a task force to develop guidelines for local school districts that provide all K-12 students in the state with effective SEL to assist them in mental health recovery from the pandemic.


PEDIATRICS ◽  
1995 ◽  
Vol 96 (4) ◽  
pp. 850-851
Author(s):  
Howard A. Pearson

Dr Elsa Stone, in her usual organized and lucid fashion, has presented the case for inclusion of pediatric nurse practitioners (PNPs) in private pediatric practices. She bases her conclusions on her nearly 10 years of positive experience with a PNP in her own practice in Connecticut. Dr Stone describes the PNP population and demography, describes the training curriculum of PNPs, and discusses the scope of work of these individuals. She concludes that "there is substantial evidence that PNPs provide quality health care and that collaborative teams of pediatricians and PNPs can provide high-quality, cost-effective care to a broader spectrum of children than can be served by either profession alone." The American Academy of Pediatrics (AAP) has insisted for several years that there is a shortage of pediatricians to meet the expanding needs of the children of the United States. Furthermore, pediatricians—because of system changes—will be expected increasingly to provide a variety of time-intensive services. Dr Stone believes that many of these services can be well provided by PNPs. Within the AAP, there have been some concerns about the role of PNPs. Of particular worry seems to be the possibility that PNPs might decide to practice independently, leading to a lower quality of care for their patients. Less often stated, but clearly an issue, is that PNPs are viewed by some pediatricians as potential competitors. Dr Stone's demographic analysis of what PNPs are currently doing is relevant to these concerns. One third of PNPs work in private pediatric practices or health maintenance organizations.


Author(s):  
J.F. Young

Abstract In this paper, we will discuss how to incorporate several of the QS-9000 quality system requirements into an existing ISO 9000 quality system. This expansion of the existing quality system will be cost effective and ensure that the continuous improvement program will meet its goals. The QS-9000 quality system was developed in 1994 by the "Big Three" automotive and truck producers in Detroit, Michigan. This document, originated in the United States, is based upon the International Standard: ISO 9001-94. It is mandatory that any supplier of goods and/or services to either Chrysler, Ford or General Motors must have their quality system registered to the QS-9000 standard. We believe that there can be benefits to non-automotive organizations if they will incorporate some of the QS-9000 clauses into their current ISO 9000 quality systems. We will discuss actual cases in the following areas: purchasing, safety, process control, training, business management and continuous improvement. We will show how these examples of quality system enhancement are both effective and efficient ways of driving cost reduction and process improvement programs. Cost of quality initiatives can be better managed.


2021 ◽  
Author(s):  
Deepthi Swamy ◽  
Apurba Mitra ◽  
Varun Agarwal ◽  
Megan Mahajan ◽  
Robbie Orvis

India is currently the world’s third-largest emitter of greenhouse gases (GHGs) after China and the United States and is set to experience continued growth in its population, economy, and energy consumption. Exploring low-carbon development pathways for India is therefore crucial for achieving the goal of global decarbonization. India has pledged to reduce the emission intensity of its gross domestic product (GDP) by 33–35 per cent relative to 2005 levels by 2030 through its Nationally Determined Contribution (NDC), among other related targets for the renewable energy and forestry sectors. Further, countries, including India, are expected to respond to the invitation of the Conference of the Parties (COP) to the Paris Agreement to communicate new or updated NDCs with enhanced ambition and long-term low-GHG development strategies for 2050. To design effective policy packages to support the planning and achievement of such climate targets, policymakers need to identify policies that can reduce GHG emissions in a timely and cost-effective manner, while meeting development-related and other national objectives. The India Energy Policy Simulator (India EPS), an open-source, system dynamics model, can enable an integrated quantitative assessment of different cross-sectoral climate policy packages for India through 2050 and their implications for key variables of interest such as emissions, GDP, and jobs. The tool was developed by Energy Innovation LLC and adapted for India in partnership with World Resources Institute. It is available for open access through a Web interface as well as a downloadable application. This technical note describes the structure, input data sources, assumptions, and limitations of the India EPS, as well as the setup and key results of its reference scenario, referred to as the business-as-usual (BAU) scenario in the model. It is intended as an update to the first technical note on the India EPS (Mangan et al. 2019) and accounts for the changes incorporated into the model since the first version.


2015 ◽  
Vol 4 (6) ◽  
pp. 82 ◽  
Author(s):  
Julie M. Mhlaba ◽  
Emily W. Stockert ◽  
Martin Coronel ◽  
Alexander J. Langerman

Objective: Operating rooms (OR) generate a large portion of hospital revenue and waste. Consequently, improving efficiency and reducing waste is a high priority. Our objective was to quantify waste associated with opened but unused instruments from trays and to compare this with the cost of individually wrapping instruments.Methods: Data was collected from June to November of 2013 in a 550-bed hospital in the United States. We recorded the instrument usage of two commonly-used trays for ten cases each. The time to decontaminate and reassemble instrument trays and peel packs was measured, and the cost to reprocess one instrument was calculated.Results: Average utilization was 14% for the Plastic Soft Tissue Tray and 29% for the Major Laparotomy Tray. Of 98 instruments in the Plastics tray (n = 10), 0% was used in all cases observed and 59% were used in no observed cases. Of 110 instruments in the Major Tray (n = 10), 0% was used in all cases observed and 25% were used in no observed cases. Average cost to reprocess one instrument was $0.34-$0.47 in a tray and $0.81-$0.84 in a peel pack, or individually-wrapped instrument.Conclusions: We estimate that the cost of peel packing an instrument is roughly two times the cost of tray packing. Therefore, it becomes more cost effective from a processing standpoint to package an instrument in a peel pack when there is less than a 42%-56% probability of use depending on instrument type. This study demonstrates an opportunity for reorganization of instrument delivery that could result in a significant cost-savings and waste reduction.


2000 ◽  
Vol 86 (1) ◽  
pp. 21-24
Author(s):  
Annie R. Pope ◽  
Daniel E. Rodell ◽  
Ron L. Evans

This article provides an overview of the Department of Veterans Affairs Community Residential Care Program and summarizes key literature about programs developed in the United States Descriptive data for 1995 and 1996 are provided to assist program planners in comparing and contrasting client characteristics and services. The authors conclude that, in addition to being cost effective, the residential care program strengthens relationships between the health care facility and the community it serves.


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