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2022 ◽  
Vol 9 (2) ◽  
pp. 91-98
Author(s):  
Arthur Middlebrooks ◽  
Jackson Brownfield ◽  
Gabriel Lajeunesse ◽  
Ryan Leach ◽  
Christopher Sharfin

The United States’ (US) ability to maintain a technological edge in the current operational environment is challenged by the increased ability of near-peer nations to produce military technology. In response to this problem, the US Army Engineer Research and Development Center (ERDC) seeks to model the three key elements of military system acquisition—context, product, and process—to develop a more comprehensive understanding regarding how and why nations acquire technical solutions. Through the application of the System Dynamics Modeling Process (SDMP), this research examines the interactions between the strategic context of Germany, the military products it acquires to address its operational needs, and the processes it employs to acquire military technology. The results of this research indicate that numerous dynamic variables of context impact the acquisitions process for Germany, particularly political support and subsequent monetary allocations to research and development.


2022 ◽  
Vol 9 (2) ◽  
pp. 83-90
Author(s):  
Graham Ungrady ◽  
Matthew Dabkowski

Every year, United States Army Recruiting Command (USAREC) dedicates considerable resources to recruiting and accessing soldiers. As the largest branch of the United States Armed Forces, the Army must meet a high recruiting quota while competing in the free-labor market for quality recruits. Over the past two decades, the Army’s success in recruiting ebbed and flowed within the broader context of society and global events. While numerous studies have examined the statistical relationship between factors associated with recruitment, these studies are observational and definitively ascribing causality in retrospect is difficult. With this in mind, we apply fuzzy cognitive mapping (FCM), a graphical method of representing uncertainty in a dynamic system, to model and explore the complex causal relationships between factors. We conclude our paper with implications for USAREC’s efforts, as well as our model’s limitations and opportunities for future work.


2022 ◽  
Author(s):  
Gary Bell ◽  
David Abraham ◽  
Gaurav Savant ◽  
Anthony G. Emiren

The Morganza Floodway and the Atchafalaya Basin, located in Louisiana west of the Mississippi River, were evaluated using a two-dimensional Adaptive Hydraulics model. Prior to this study, Phase 1 and 2 model studies were performed that indicated that the existing floodway may not be able to pass the Project Design Flood discharge of 600,000 cubic feet per second due to levee overtopping. In this study, all elevations of exterior and interior levees were updated with current crest elevations. In addition, the Phase 3 effort evaluated the sensitivity of the floodway’s flow capacity to variations in tree/vegetation density conditions. These adjustments in roughness will improve the understanding of the role of land cover characteristics in the simulated water surfaces. This study also provides a number of inundation maps corresponding to certain flows through the Morganza Control Structure.


2022 ◽  
Author(s):  
Joseph Dunbar

Six geodetic datums have been used by the US Army Corps of Engineers (USACE), Mississippi River Commission (MRC), for river surveys in the Lower Mississippi Valley (LMV). These legacy elevation datums are the Cairo datum, the Memphis datum, the Mean Gulf Level (MGL), the Mean Sea Level (MSL), the National Geodetic Vertical Datum (NGVD) 1929, and the North American Vertical Datum 1988 (NAVD88). The official geodetic datum currently prescribed by the USACE is NAVD88 (USACE 2010). In addition to these different geodetic datums, hydraulic datums are in use by the USACE for rivers, lakes, and reservoir systems. Hydrographic surveys from the Mississippi River are typically based on a low water pool or discharge reference, such as a low water reference plane (LWRP), an average low water plane (ALWP), or a low water (LW) plane. The following technical note is intended to provide background information about legacy datums used in the LMV to permit comparison of historic maps, charts, and surveys pertaining to the Mississippi River in the LMV. The purpose of this report is to provide background information and history of different published horizontal and vertical datums used for presentation of hydrographic survey data from the Mississippi River. The goal is to facilitate understanding of differences with comparison to other historic surveys for change-detection studies along the river. Conversion values are identified herein for the earlier surveys where appropriate, and methods are presented here to evaluate the differences between earlier and later charts and maps. This report is solely intended to address the LMV area and historic surveys made there. This note is not applicable to areas outside of the LMV. Throughout this technical note, historic hydrographic surveys and data from the Memphis, TN, to Rosedale, MS, reach will be used as examples of features of interest for discussion purposes. Selected historic hydrographic survey sheets at Helena, AR, are included as Plates 1 to 3 (Appendix C) of this document and will be used as examples for discussion purposes.


Author(s):  
Lauren M. Seal ◽  
Sara B. Mullaney ◽  
Sheldon G. Waugh

Abstract OBJECTIVE To describe the presence of Leishmania infection within the animal population receiving care from US Army Veterinary Services. ANIMALS 629 canine, feline, and equine patients of US Army Veterinary Services from 2014 to 2017. PROCEDURES Personnel at the US Army Public Health Center ran a query within the Remote Online Veterinary Record system using previously validated search terms (eg, liesh, leish, and lesh) and returned data on any patient for which the master problem list included those terms. Next, a query was run to identify all leishmaniasis testing. Records identified by queries were reviewed manually, and data were collected on patient signalment, indication for and type of testing, location of testing, and previous locations or country of the patient. RESULTS Only dogs (n = 378), not cats or horses, had been tested for leishmaniasis, 54 (14.3%) of which tested positive for Leishmania infection. More specifically, 39 of 104 (37.5%) privately owned dogs tested positive, compared with 15 of 274 (5.6%) government-owned dogs. Overall, 186 dogs had no clinical signs, 12 (6.5%) of which tested positive. Forty-four of the 54 (81%) test-positive dogs were located in or had traveled to an endemic area. CLINICAL RELEVANCE The prevalence of leishmaniasis in the various subpopulations of dogs suggested the need for additional prevalence studies. Many animals travel in and out of the US, and repeated introduction of Leishmania spp could lead to this vector-borne disease becoming endemic in the US animal and human populations. Consequently, US veterinarians need to ensure proper testing and follow-up to protect one health.


2022 ◽  
Vol 32 (1) ◽  
pp. 19-20
Author(s):  
Elmar Nass
Keyword(s):  

Das Führungsinstitut der US-Army hat in einem Handbuch einige Prinzipien und Werte für eine Führungsethik zusammengestellt, über die - bei aller Skepsis gegenüber militärischer Führungskultur - auch sozialwirtschaftliche Organisationen nachdenken sollten.


2021 ◽  
Vol 224 (24) ◽  

Roger Hanlon is a Senior Scientist at the Marine Biological Laboratory, USA, where he investigates body patterning and colour change in cephalopods. After his undergraduate degree in 1969 at Florida State University, USA, he joined the US Army and travelled before completing his MSc (1975) and PhD (1978) at the University of Miami Rosenstiel School of Marine and Atmospheric Sciences, USA. After a NATO Postdoctoral Fellowship at the University of Cambridge, UK, in 1981, Hanlon joined the Marine Biomedical Institute, University of Texas Medical Branch, where he became a full Professor, before joining the Marine Biological Laboratory in 1995. Hanlon talks about the seminal experience in his early 20s that inspired his career and the methods and equipment he uses to study cephalopod camouflage and communication across the globe.


2021 ◽  
pp. 151-161
Author(s):  
V. V. Ivanov

The article devoted to the analysis of the actions of special forces of US and South Vietnam during 1961–1967. One of the main tasks of these units during Vietnam war – destruction main objects of «Ho Chi Minh Trail» in South Vietnam, Laos and Cambodia. The work is built with the assistance of a memoir – translations memories combatants in South Vietnam and Laos, soldiers and commanders of Army of US, South Vietnam and Democratic Republic of Vietnam (DRV). The materials housed in the monographs of American and Vietnam researchers of the Indochina conflict, 1960–1970-s.In the early 1960s, in the setting of active infiltration teams of PAVN from DRV administration of USA adopted decision to send to Indochina units of special forces (Green Berets). Many of the military personnel who served in Vietnam belonged to 5th and 7th Special Forces Groups. Some Green Berets were assigned to the U.S. Military Assistance Command’s Studies and Observation Group (SOG) for making top secret intelligence operations and helped train the South Vietnamese special forces (LLDB). The most Green Berets defended South Vietnam’s border from infiltration from DRV. Apart from Green Berets, special units of the US NAVY were also active in South Vietnam. The main task of the special forces of the NAVY was the blockade of all waterways supplying partisans from North Vietnam and Cambodia by means of ambushes, sabotage, laying of mines and raids on bases of PAVN. In 1965-1967s mixed teams of Green Berets and LLDB conducted long-range reconnaissance missions into Laos and directed air strikes against the «Ho Chi Minh Trail». The U.S. aircraft bombed the «Ho Chi Minh Trail» daily, targeting areas based on electronic detection devices and intelligence gained by covert teams that infiltrated the area. However, these efforts could not slow down the movement of troops of PAVN, supplies southward along the «Ho Chi Minh Trail». The author paid attention to the creation units of special forces as part of army units of US Army situated in South Vietnam during 1965–1967. Special attention is paid by the author to the analysis secret operations of Green Berets against «Ho Chi Minh Trail». The author concluded that the special forces of USA and South Vietnam failed to achieve the set goals.


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