scholarly journals Assessing Ecosystem Condition: Use and Customization of the Vegetation Departure Metric

Land ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 28
Author(s):  
Randy Swaty ◽  
Kori Blankenship ◽  
Kimberly R. Hall ◽  
Jim Smith ◽  
Megan Dettenmaier ◽  
...  

Assessment of ecosystem change often focuses on the degree of conversion and representation in networks of protected areas. While essential, these factors alone do not provide a holistic index of ecosystem conditions. Metrics that compare the current state of ecosystems to a meaningful reference condition can help identify “hidden” risks, lost functions, and provide conservation and management-relevant insights. Here we review a departure metric that can be used to measure ecosystem conditions and its implementation for all lands in the United States by the LANDFIRE Program. We then use two case studies to demonstrate how manually calculating the departure metric is used to explore under- and over-representation of structural stages. Finally, we document the assumptions, interpretation, and limitations of the departure metric, and discuss its current and possible future applications.

Somatechnics ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 74-94 ◽  
Author(s):  
Rae Rosenberg

This paper explores trans temporalities through the experiences of incarcerated trans feminine persons in the United States. The Prison Industrial Complex (PIC) has received increased attention for its disproportionate containment of trans feminine persons, notably trans women of colour. As a system of domination and control, the PIC uses disciplinary and heteronormative time to dominate the bodies and identities of transgender prisoners by limiting the ways in which they can express and experience their identified and embodied genders. By analyzing three case studies from my research with incarcerated trans feminine persons, this paper illustrates how temporality is complexly woven through trans feminine prisoners' experiences of transitioning in the PIC. For incarcerated trans feminine persons, the interruption, refusal, or permission of transitioning in the PIC invites several gendered pasts into a body's present and places these temporalities in conversation with varying futures as the body's potential. Analyzing trans temporalities reveals time as layered through gender, inviting multiple pasts and futures to circulate around and through the body's present in ways that can be both harmful to, and necessary for, the assertion and survival of trans feminine identities in the PIC.


2021 ◽  
Vol 13 (2) ◽  
pp. 703
Author(s):  
Megan Drewniak ◽  
Dimitrios Dalaklis ◽  
Anastasia Christodoulou ◽  
Rebecca Sheehan

In recent years, a continuous decline of ice-coverage in the Arctic has been recorded, but these high latitudes are still dominated by earth’s polar ice cap. Therefore, safe and sustainable shipping operations in this still frozen region have as a precondition the availability of ice-breaking support. The analysis in hand provides an assessment of the United States’ and Canada’s polar ice-breaking program with the purpose of examining to what extent these countries’ relevant resources are able to meet the facilitated growth of industrial interests in the High North. This assessment will specifically focus on the maritime transportation sector along the Northwest Passage and consists of four main sections. The first provides a very brief description of the main Arctic passages. The second section specifically explores the current situation of the Northwest Passage, including the relevant navigational challenges, lack of infrastructure, available routes that may be used for transit, potential choke points, and current state of vessel activity along these routes. The third one examines the economic viability of the Northwest Passage compared to that of the Panama Canal; the fourth and final section is investigating the current and future capabilities of the United States’ and Canada’s ice-breaking fleet. Unfortunately, both countries were found to be lacking the necessary assets with ice-breaking capabilities and will need to accelerate their efforts in order to effectively respond to the growing needs of the Arctic. The total number of available ice-breaking assets is impacting negatively the level of support by the marine transportation system of both the United States and Canada; these two countries are facing the possibility to be unable to effectively meet the expected future needs because of the lengthy acquisition and production process required for new ice-breaking fleets.


Author(s):  
James Lee Brooks

AbstractThe early part of the twenty-first century saw a revolution in the field of Homeland Security. The 9/11 attacks, shortly followed thereafter by the Anthrax Attacks, served as a wakeup call to the United States and showed the inadequacy of the current state of the nation’s Homeland Security operations. Biodefense, and as a direct result Biosurveillance, changed dramatically after these tragedies, planting the seeds of fear in the minds of Americans. They were shown that not only could the United States be attacked at any time, but the weapon could be an invisible disease-causing agent.


2017 ◽  
Vol 3 (1) ◽  
pp. 1 ◽  
Author(s):  
Mikiyasu Nakayama ◽  
Nicholas Nicholas Bryner ◽  
Satoru Mimura

This special issue features policy priorities, public perceptions, and policy options for addressing post-disaster return migration in the United States, Japan, and a couple of Asian countries. It includes a series of case studies in these countries, which are based on a sustained dialogue among scholars and policymakers about whether and how to incentivize the return of displaced persons, considering social, economic, and environmental concerns. The research team, composed of researchers from Indonesia, Japan, Sri Lanka, and the United States, undertook a collaborative and interdisciplinary research process to improve understanding about how to respond to the needs of those displaced by natural disasters and to develop policy approaches for addressing post-disaster return. The research focused on the following three key issues: objectives of return migration (whether to return, in what configuration, etc.), priorities and perceptions that influence evacuees’ decision-making regarding return, and policies and practices that are used to pursue return objectives. This special issue includes ten articles on the following disaster cases: the Great East Japan Earthquake in 2011, Hurricane Katrina in 2005 and Hurricane Sandy in 2012, the Great Indian Ocean Tsunami in 2004, and the Great Sumatra Island Earthquake in 2009. Important lessons for the future were secured out of these case studies, covering the entire phase of return, namely planning, implementation, and monitoring.


2019 ◽  
Vol 24 (3) ◽  
pp. 147-152 ◽  
Author(s):  
Daniel Eisenman

Introduction: A dramatic increase in the number of clinical trials involving gene-modified cell therapy and gene therapy is taking place. The field is on the verge of a boom, and the regulatory environment is evolving to accommodate the growth. Discussion: This commentary summarizes the current state of the field, including an overview of the growth. The United States (US) regulatory structure for gene therapy will be summarized, and the evolution of the oversight structure will be explained. Conclusion: The gene therapy field has recently produced its first FDA-approved therapeutics and has a pipeline of other investigational products in the final stages of clinical trials before they can be evaluated by the FDA as safe and effective therapeutics. As research continues to evolve, so must the oversight structure. Biosafety professionals and IBCs have always played key roles in contributing to the safe, evidence-based advancement of gene therapy research. With the recent regulatory changes and current surge in gene therapy research, the importance of those roles has increased dramatically.


2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Kristen L. Knapp ◽  
Nancy A. Rice

Borrelia burgdorferi, the causative agent of Lyme disease, andBabesia microti, a causative agent of babesiosis, are increasingly implicated in the growing tick-borne disease burden in the northeastern United States. These pathogens are transmitted via the bite of an infected tick vector,Ixodes scapularis, which is capable of harboring and inoculating a host with multiple pathogens simultaneously. Clinical presentation of the diseases is heterogeneous and ranges from mild flu-like symptoms to near-fatal cardiac arrhythmias. While the reason for the variability is not known, the possibility exists that concomitant infection with bothB. burgdorferiandB. microtimay synergistically increase disease severity. In an effort to clarify the current state of understanding regarding coinfection withB. burgdorferiandB. microti, in this review, we discuss the geographical distribution and pathogenesis of Lyme disease and babesiosis in the United States, the immunological response of humans toB. burgdorferiorB. microtiinfection, the existing knowledge regarding coinfection disease pathology, and critical factors that have led to ambiguity in the literature regarding coinfection, in order to eliminate confusion in future experimental design and investigation.


Author(s):  
Dale Allen ◽  
Kenneth E. Pickering ◽  
Eric Bucsela ◽  
Jos Van Geffen ◽  
Jeff Lapierre ◽  
...  

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