scholarly journals Long-term effects of catastrophic wind on southern US coastal forests: Lessons from a major hurricane

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0243362
Author(s):  
Ajay Sharma ◽  
Santosh K. Ojha ◽  
Luben D. Dimov ◽  
Jason G. Vogel ◽  
Jarek Nowak
Keyword(s):  
United States ◽  
Stand Structure ◽  
Diversity Index ◽  
The United States ◽  
United States Department ◽  
Long Term Effects ◽  
Hurricane Ivan ◽  
Southern Us ◽  
Forest Managers

Threats posed by windstorms are an increasing concern to forest managers in the southern United States (US). Studies suggest that the southern US will experience an increase in the occurrence as well as the intensity of windstorms, such as hurricanes, in the future. However, forest managers may have difficulty preparing for this future because there is limited understanding of how windstorms affect the structure and composition of forests over the long term. In this study, we evaluated the impacts of Hurricane Ivan, which made landfall in September 2004 near Gulf Shore, Alabama, impacting forests in the western Florida Panhandle and southwestern Alabama. We acquired the United States Department of Agriculture Forest Inventory and Analysis (FIA) plot data available for the period from 2002 to 2018 for the Ivan-affected area and classified the plots into 4 categories: (1). ND (No Disturbance), (2). NDBH (No Disturbance but Harvested), (3). ID (Disturbance caused by Hurricane Ivan), and (4). IDAH (Disturbance caused by Hurricane Ivan and Harvested). The plots that were damaged by Hurricane Ivan (ID and IDAH plots) had significantly (α = 0.05) (1) higher basal area, (2) higher quadratic mean diameter and height, (3) more diverse tree species composition (species richness and Shannon diversity index), (4) denser stocking of seedling and saplings, (5) lower proportion of dead trees or saplings, and (6) higher live aboveground biomass than the plots that were not damaged by the hurricane (ND and NDBH plots). Diverse stands were not necessarily more windstorm resistant. Species diversity in the overstory may not improve forest resistance to hurricane damage but may improve its resilience following the hurricane. The study suggests that managing stand structure through density management and stand improvement could be critical to windstorm resilience and resistance in the southern US forests.

Leaded Aviation Fuel May Present Long-Term Effects on Campus Life from the Adjacent Albert Whitted Airport

2020 ◽  
Author(s):  
Joseph Matthews ◽  
Madhu Pandey
Keyword(s):  
United States ◽  
Particulate Matter ◽  
The United States ◽  
Aviation Fuel ◽  
University Campus ◽  
Long Term Effects ◽  
Aviation Gasoline ◽  
Suspended Particulate ◽  
Descent Line

Propeller planes and small engine aircraft around the United States, legally utilize leaded aviation gasoline. The purpose of this experiment was to collect suspended particulate matter from a university campus, directly below an airport’s arriving flight path’s descent line, and to analyze lead content suspended in the air. Two collection sets of three separate samples were collected on six separate days, one set in July of 2018 and the second set in January 2019.

scholarly journals The long-term effects of take-overs on the South African economy

1984 ◽  
Vol 15 (4) ◽  
pp. 229-231
Author(s):  
N. Bhana
Keyword(s):  
United States ◽  
South African ◽  
Direct Investment ◽  
The United States ◽  
Performance Criteria ◽  
Long Term Effects ◽  
Short Term ◽  
Lower Productivity ◽  
Manufacturing Resources

Acquiring companies prefer growth through acquisitions and mergers rather than growth by direct investment in manufacturing resources. A justification for the large number of take-overs is the belief that abnormal gains are to be obtained so. There is substantial empirical evidence showing this untrue. Take-overs contribute immediate short-term gains, and are preferred to internal expansion where the benefits accrue over the long-term. Managers are usually evaluated on short-term performance criteria and therefore they have a bias for take-overs. Several investigators have studied the decline of the United States economy and the corresponding rise of Japan as industrial leader. The unrestrained take-over activity has been the chief reason for the decline of many industries in the United States. Acquiring companies have contributed to their own downfall by not investing sufficiently in up-to-date manufacturing resources. Take-overs lead to economic decline caused by lower productivity of acquired resources. South African companies are showing a strong preference for growth through take-overs. With the take-over process many local industries have come under the control of a few large conglomerates. South African acquiring companies could benefit by following the Japanese example of direct investments in technologically up-to-date manufacturing resources. More direct investment in manufacturing resources will lead to a more vigorous free-enterprise system and will raise the productivity of local industries. A more stringent Competition Act is necessary if South Africa is to avoid the harm to the economy caused by unrestrained take-over activity.

scholarly journals Long-Term Effects of Repealing the National Maximum Speed Limit in the United States

2009 ◽  
Vol 99 (9) ◽  
pp. 1626-1631 ◽  
Author(s):  
Lee S. Friedman ◽  
Donald Hedeker ◽  
Elihu D. Richter
Keyword(s):  
United States ◽  
The United States ◽  
Maximum Speed ◽  
Speed Limit ◽  
Long Term Effects

scholarly journals The consequence of COVID-19: how the United States moved from security provider to security consumer

2020 ◽  
Vol 96 (5) ◽  
pp. 1253-1279
Author(s):  
Simon Reich ◽  
Peter Dombrowski
Keyword(s):  
United States ◽  
National Security ◽  
The United States ◽  
Health Issues ◽  
Long Term Effects ◽  
Security Challenges ◽  
The Us ◽  
Definition Of ◽  
Anthropogenic Threats

Abstract Deliberations over the COVID-19 pandemic's long-term effects on the global balance of power have spurred a large and rancorous debate, including speculation about a shift in the definition of national security and prescriptions about where it should focus. That argument will no doubt continue. But we argue that one consequence is already evident: the United States has spent the last seventy years portraying itself as a security provider in all key domains—for many an intrinsic component of its status as a global leader. One reasonable broad conclusion from the US struggle with COVID-19 is that it has further forfeited its broad leadership position on the basis of its behaviour. Yet that, although possibly true, would only portray one element of the story. The more profound insight exposed by COVID-19 is of a new reality: in a world where both naturogenic and anthropogenic threats pose immense national security challenges, decades of mistaken assumptions and policy choices have created a new environment, one where the United States has been redefined as a security consumer, at least in terms of international public health issues associated with the spread of deadly infectious diseases.

scholarly journals The Long-Term Effects of Management and Technology Transfers

2019 ◽  
Vol 109 (1) ◽  
pp. 121-152 ◽  
Author(s):  
Michela Giorcelli
Keyword(s):  
United States ◽  
Time Management ◽  
Technical Assistance ◽  
Management Training ◽  
The United States ◽  
Causal Effects ◽  
Long Term Effects ◽  
Technology Transfers ◽  
Long Run

This paper examines the long-run causal effects of management on firm performance. Under the United States Technical Assistance and Productivity Program (1952–1958), the United States organized management training trips for Italian managers to US firms and granted technologically advanced machines to Italian companies. I exploit an unexpected budget cut that reduced the number of participating firms and find that, compared to businesses excluded by the budget cut: performance of Italian firms that sent their managers to the United States increased for at least fifteen years after the program; performance of companies that received new machines increased, but flattened out over time; management and new machines were complementary. (JEL F23, L25, M16, M54, N34, N64, O33)

scholarly journals Book Review: Last Train to Auschwitz The French National Railways and the Journey to Accountability

2021 ◽  
Vol 15 (2) ◽  
pp. 55-57
Author(s):  
Timothy Plum
Keyword(s):  
United States ◽  
Transitional Justice ◽  
Holocaust Survivors ◽  
The United States ◽  
Detailed Account ◽  
Corporate Accountability ◽  
Long Term Effects ◽  
The Holocaust

The book Last Train to Auschwitz: The French National Railways and the Journey to Accountability, written by Sarah Federman traces the SNCF’s journey toward accountability in France and the United States. Told from the Holocaust survivors’ perspective the volume illustrates the long-term effects of the railroad’s complicity with the Nazis on individuals, and transitional justice that leads to corporate accountability. In a time when corporations are increasingly granted the same rights as people, Federman’s detailed account demonstrates the obligations businesses to atone for aiding and abetting governments in committing atrocities.

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