Mimicking Robotic Backhoe

The proposed project is to design and create a small robotic arm that mimics movements of a similar physical model. The manual model can be manipulated by a human. Sensors inside the manual model will detect the position in each part of the arm. The information from the sensors will then be relayed, processed, and forwarded to the mimicking model. The mimicking robotic model will appropriately respond to match the smaller model, thus mimicking its position and movements

Political World of Bob Dylan

According to Bob Dylan, we live in what his 1989 song calls a “Political World.” He is correct. But what does this mean? And what is Dylan’s relation to his world

Vascular Neck Restraints: An Evaluation of the Tactical Use for Law Enforcement Defensive Tactics Programs

Law enforcement agencies are under constant scrutiny and criticism. This is especially true when it comes to neck restraints. Due to news media, social media sites, and social justice groups, neck restraints have been demonized and deemed unjust for law enforcement to use except in a deadly force incident. This is simply untrue. Vascular neck restraints are often confused with chokeholds that cut off a person’s airway and can cause damage to the throat or even death (Peters & Katsaris, 2013). Vascular neck restraints restrict blood-flow to the brain, which causes the subject to be rendered unconscious before sustaining any injury (Lindell, 2010). Additionally, the majority of subjects placed in a vascular neck restraint will just give up before unconsciousness ensues (Haynes, 2009). The vascular neck restraint is a tactic that when trained and deployed correctly, can safely subdue a violent subject that is resisting law enforcement. Although this is a perishable tactic that needs to be trained annually, the benefits of a properly trained officer far outweigh the cost of training. Furthermore, this technique can reduce injury and save the lives of officers and offenders alike (Marcou, 2015). The lateral vascular neck restraint is a form of restraint that has several levels of force that can be increased as resistance increases (Lindell, 2010). Additionally, the lateral vascular neck restraint has been utilized for over 40 years with an impeccable record (Lindell, 2010). Vascular neck restraints are tactics that should be trained annually and implemented as a tactic that can be used fluidly along the use of force continuum

Best-in-Class Global Bumper Reinforcement Beam

Modern bumper systems are governed by laws and regulations imposed separately by various countries. Today, the regulations in China, North America, and Europe are becoming more similar, but there is not a widely accepted bumper reinforcement that meets the requirements of all markets around the globe. A universal bumper reinforcement beam incorporating Plug-n-Play techniques was developed to meet and exceed all testing requirements and performance standards of each country. These Plug-n-Play techniques consist of adding energy absorbing attachments to the front of a base bumper beam. Simple beam analysis and FEA were the primary analysis tools in the development of the bumper beam system. Plug & Play techniques were utilized to increase the performance of the universal bumper across all markets

Invasions and Extinctions as a Consequence of Climate Change

Invasions and extinctions are occurring at a rate that is unprecedented in historical time. These phenomena are a kind of biological extreme at each end of the spectrum, and both are responses related to landscape and environmental conditions, which also link to climate change. Research shows that species change their ranges in response to climate change and to general predictable trends, but individual responses seem to be idiosyncratic, said moderator Craig Allen. Because of this, there is a need to explicitly anticipate and think about ecological surprises and the unanticipated consequences of global change. Ecological systems often exhibit nonlinear threshold responses, so systems can change suddenly in response to a slow force such as climate change. The Platte River Basin can provide a focal point for the study of invasion and extinction and other effects on species related to changes in climate. The Platte River provides critical habitat for many species, including four threatened and endangered wildlife species: the least tern, piping plover, whooping crane and pallid sturgeon. The shallow riverine wetlands along a narrow 100-mile stretch of the central Platte River provide a crucial stop-over for whooping cranes and more than 500,000 sandhill cranes each spring during their northward migration. Approximately 300,000 shorebirds comprising more than 30 species migrate through the North American Migratory Flyway that transects Nebraska. At the other biological extreme, low water levels in the Platte induced by drought have led to invasive species problems. For example, the common reed Phragmites australis is choking the river channels and hindering habitat restoration efforts

Invasions and Extinctions as a Consequence of Climate Change

Invasions and extinctions are occurring at a rate that is unprecedented in historical time. These phenomena are a kind of biological extreme at each end of the spectrum, and both are responses related to landscape and environmental conditions, which also link to climate change. Research shows that species change their ranges in response to climate change and to general predictable trends, but individual responses seem to be idiosyncratic, said moderator Craig Allen. Because of this, there is a need to explicitly anticipate and think about ecological surprises and the unanticipated consequences of global change. Ecological systems often exhibit nonlinear threshold responses, so systems can change suddenly in response to a slow force such as climate change. The Platte River Basin can provide a focal point for the study of invasion and extinction and other effects on species related to changes in climate. The Platte River provides critical habitat for many species, including four threatened and endangered wildlife species: the least tern, piping plover, whooping crane and pallid sturgeon. The shallow riverine wetlands along a narrow 100-mile stretch of the central Platte River provide a crucial stop-over for whooping cranes and more than 500,000 sandhill cranes each spring during their northward migration. Approximately 300,000 shorebirds comprising more than 30 species migrate through the North American Migratory Flyway that transects Nebraska. At the other biological extreme, low water levels in the Platte induced by drought have led to invasive species problems. For example, the common reed Phragmites australis is choking the river channels and hindering habitat restoration efforts

Return to activity following ACL Reconstruction with the Fertilized ACL: A retrospective study.

Background The objective of this retrospective study is to evaluate outcomes in patients who underwent the fertilized anterior cruciate ligament (ACL) reconstruction procedure. We aim to investigate the return to previous level of activity, safety, and re-rupture rates of the ACL reconstruction augmented with bone marrow concentrate, demineralized bone matrix, autograft bone, and a suture tape (the fertilized ACL). Methods A comprehensive review of medical records was conducted for patients treated with the fertilized ACL (FACL). Medical records of all the patients who underwent reconstruction surgery between July 2018 and January 2021 were evaluated. The inclusion criteria for the study were patients with a defined ACL tear based on clinical examination and magnetic resonance imaging testing who received FACL reconstruction between July 2018 and January 2021. Exclusion criteria included revision ACL reconstruction, non FACL reconstruction, and patients that underwent the FACL reconstruction outside of the defined time period. Thirteen patients underwent reconstruction using a Graftlink allograft (Lifenet Virginia Beach, Va) and 38 using quadriceps autografts. All patients received the FACL reconstruction using bone marrow concentrate, demineralized bone matrix, autograft bone, and suture tape. A phone survey was conducted to obtain patient-reported outcome measures including return to previous level of activity, International Knee Documentation Committee (IKDC), ACL Return to Sport After Injury (ACL RSI), and Visual Analogue Scale (VAS) values. A chart review was conducted for complications and questions were asked during the phone survey regarding return to operating room, infections, and re-ruptures. Results Data analysis revealed 94% of the patients returned to their previous level of activity. The average IKDC and ACL RSI scores were 94% (SD, 9.0) and 92% (SD,15.3), respectively. The average VAS score was .9/10 (SD, 1.2). One patient required reoperation for pain at 1 year. No re-ruptures were observed. Conclusion This retrospective study sheds light on the FACL, which adds biology and an internal brace to an ACL reconstruction, as a reliable and safe option when performing an ACL reconstruction. Very low complication rates were seen in this consecutive series followed for a mean of 2 years. Patients had an extremely high level of return to previous level of sport/activity

Double-crop soybean production in Oklahoma

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