Relevant bibliographies by topics / White finger

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'White finger'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "White finger"

1

Arsovska, Ljubica, and Eftim Takovshi. "The White Finger." Southeastern Europe 12, no. 1 (1985): 187–92. http://dx.doi.org/10.1163/187633385x00141.

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Palmer, R. A., and J. Collin. "Vibration white finger." British Journal of Surgery 80, no. 6 (June 1993): 705–9. http://dx.doi.org/10.1002/bjs.1800800608.

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Welsh, C. L., and R. A. Palmer. "Vibration white finger." British Journal of Surgery 80, no. 10 (October 1993): 1354. http://dx.doi.org/10.1002/bjs.1800801058.

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Burke, F. J., and S. A. Jaques. "Vibration white finger." British Dental Journal 174, no. 6 (March 1993): 194. http://dx.doi.org/10.1038/sj.bdj.4808121.

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Jaques, S. A., and F. J. Burke. "Vibration white finger." British Dental Journal 177, no. 8 (October 1994): 279. http://dx.doi.org/10.1038/sj.bdj.4808585.

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BOYLE, J., N. SMITH, and F. BURKE. "Vibration white finger." Journal of Hand Surgery: Journal of the British Society for Surgery of the Hand 13, no. 2 (May 1988): 171–76. http://dx.doi.org/10.1016/0266-7681(88)90131-3.

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Gupta, Amit, and Steven J. McCabe. "VIBRATION WHITE FINGER." Hand Clinics 9, no. 2 (May 1993): 325–37. http://dx.doi.org/10.1016/s0749-0712(21)00972-0.

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Hadler, Nortin M. "Vibration White Finger Revisited." Journal of Occupational & Environmental Medicine 40, no. 9 (September 1998): 772–79. http://dx.doi.org/10.1097/00043764-199809000-00005.

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Roberts, F. P. "Vibration white finger and Dupuytren's contracture." Occupational Medicine 44, no. 1 (1994): 50. http://dx.doi.org/10.1093/occmed/44.1.50.

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Bovenzi, Massimo. "Finger thermometry in the assessment of subjects with vibration-induced white finger." Scandinavian Journal of Work, Environment & Health 13, no. 4 (August 1987): 348–51. http://dx.doi.org/10.5271/sjweh.2044.

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Dissertations / Theses on the topic "White finger"

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Nelson, Christopher Mark. "Vibration-induced white finger in dockyard employees." Thesis, University of Southampton, 1992. https://eprints.soton.ac.uk/192427/.

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Vibration-induced white finger (VWF) is a vascular condition associated with occupational exposure to hand-transmitted vibration. The fingers are prone to intermittent blanching attacks which may be triggered by cold conditions and are usually accompanied by numbness and tingling or pain. VWF has been associated with the use of various tools and processes, among which are the percussive and rotary metal-working tools used in ship repair work. This thesis describes a study of dose-effect relationships for VWF in dockyard employees. A review of the literature revealed more than 40 epidemiological studies of VWF in workers using hand-held metal-working tools. Measurements of tool vibration have also been reported, but few researchers have combined epidemiological studies of VWF with measurements of the vibration exposures Involved. Some dose-effect relationships have been suggested and current standards contain tentative doseeffect guidance. Some recent authors have suggested that the frequency weighting and time-dependencies assumed In current standards are inadequate. Methods for the measurement of hand-transmitted vibration were assessed. The vibration characteristics of sixteen pneumatic tools commonly used in dockyard work were measured in the laboratory. Repeated measurements were made In three axes at each hand position and analysis included the computation of narrow-band spectra, acceleration magnitudes in octave bands and overall frequency-weighted and unweighted acceleration magnitudes. A survey of vibration-exposed employees in a dockyard was conducted by questionnaire. Information related to symptoms of VWF, and the history of use of vibrating tools was obtained from each individual. The severity of blanching in each affected individual was recorded using a scoring system. The severity and prevalence of symptoms were related to various measures of vibration 'dose' (i.e. combinations of measured vibration magnitudes and reported exposure times) by logistic regression and survival analysis. A highly significant relationship between VWF severity and exposure time was demonstrated. However, the use of frequency-weighted acceleration in dose calculations reduced the goodness of fit, while unweighted acceleration gave a small improvement in some cases. This suggests that higher frequencies in the range 6.3 Hz to 1250 Hz are of greater Importance than current standards imply. The effect of vibration magnitude was found to be small compared with that of exposure time and no clear effect of vibration direction or vibration frequency was demonstrated. No evidence was found for a time-dependency of the form assumed in current standards. It is possible that the risk of VWF may not be directly related to the vibration magnitude, but that a 'threshold' magnitude exists, below which the hazard is small and above which it is proportional to a function of the exposure time. Further Investigation of this hypothesis is recommended.
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Palmer, Keith. "Aspects of human health and occupational exposure to vibration." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312305.

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IKI, MASAYUKI. "VIBRATION-INDUCED WHITE FINGER AS A RISK FACTOR FOR HEARING LOSS AND POSTURAL INSTABILITY." Nagoya University School of Medicine, 1994. http://hdl.handle.net/2237/16062.

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Nilsson, Tohr. "Neurosensory function and white finger symptoms in relation to work and hand-transmitted vibration /." Solna : National Institute for Working Life (Arbetslivsinstitutet), 1998. http://ebib.arbetslivsinstitutet.se/ah/1998/ah1998_29.pdf.

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Carnicelli, Maristela Vendramel Ferreira. "Relationship between individual susceptibility to noise-induced hearing loss and vibration-induced white finger and neurological disorders." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314987.

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MANO, TADAAKI. "AUTONOMIC RESPONSES TO ENVIRONMENTAL STIMULI IN HUMAN BODY." Nagoya University School of Medicine, 1994. http://hdl.handle.net/2237/16055.

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Pattnaik, Shrikant P. "Development of Analytical Models to Study Musculoskeletal and Vascular Damage Leading to Hand-Arm Vibration Syndrome." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1313753855.

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INABA, RYOICHI, HIROTOSHI IWATA, and S. MOHAMMAD MIRBOD. "OPERATING HAND-HELD VIBRATING TOOLS AND PREVALENCE OF WHITE FINGERS." Nagoya University School of Medicine, 1994. http://hdl.handle.net/2237/16065.

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Dunn, Scott E. "Vibration level characterization from a needle gun used on U.S. naval vessels." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001702.

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GEMNE, GÖSTA. "PATHOPHYSIOLOGY OF WHITE FINGERS IN WORKERS USING HAND-HELD VIBRATING TOOLS." Nagoya University School of Medicine, 1994. http://hdl.handle.net/2237/16057.

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Books on the topic "White finger"

1

Society, Irish Raynaud's &. Scleroderma. Vibration White Finger (VWF): An informative leaflet. Dublin: Irish Raynaud's & Scleroderma Society, 1998.

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Baxter, James A. Raynaud's phenomenon (white finger): A summary of the occupational health concern. Hamilton, Ont: Canadian Centre for Occupational Health and Safety, 1989.

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Griffin, M. J. Cold provocation tests for the diagnosis of vibration-induced white finger: Standardisation and repeatability. [Sudbury]: HSE Books, 1998.

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Tsampalieros, Anne. The clinical utility of the photocell plethysmography test and Digital Re-warming test in relation to the Stockholm Vascular Scale in diagnosing patients with symptoms of vibration white finger. Ottawa: National Library of Canada, 2002.

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Office, United States Government Accountability. Criminal debt: Court-ordered restitution amounts far exceed likely collections for the crime victims in selected financial fraud cases : report to the honorable Byron L. Dorgan, U.S. Senate. Washington, D..C: U.S. Government Accountability Office, 2005.

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Office, United States Government Accountability. Criminal debt: Court-ordered restitution amounts far exceed likely collections for the crime victims in selected financial fraud cases : report to the Honorable Byron L. Dorgan, U.S. Senate. Washington, D.C: U.S. Government Accountability Office, 2005.

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Sie konnten zueinander nicht finden--: Betriebsräte und Angestellte in mittelständischen Betrieben. Köln: Bund-Verlag, 1994.

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Arkhitektura Belarusi XX-nachala XXI v.: Ėvoli︠u︡t︠s︡ii︠a︡ stileĭ i khudozhestvennykh kont︠s︡ept︠s︡iĭ. Minsk: Belorusskai︠a︡ nauka, 2007.

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Dubia, Christopher. Christopher Dubia: Welcome home. Washington, DC: Bonnacon Press, 2006.

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Berger, Maurice. White - Whiteness and Race in Contemporary Art. Baltimore,Maryland: University of Maryland Baltimore County,Fine Arts Gallery, 2003.

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Book chapters on the topic "White finger"

1

Aicher, Simon, and Gordian Stapf. "Glulam from European White Oak: Finger Joint Influence on Bending Size Effect." In Materials and Joints in Timber Structures, 641–56. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-7811-5_58.

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Gemne, G. "Raynaud’s Phenomenon (“White Fingers”) in Workers Using Hand-Held Vibrating Tools." In Handbook of Occupational Dermatology, 162–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-07677-4_20.

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Khan, Salman Mohd, Abid Ali Khan, and Omar Farooq. "A Neural Network-Based Classification for Finger Motion While Grasping Different Sized Objects." In Lecture Notes in Mechanical Engineering, 113–18. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8704-7_13.

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Rossin, Elizabeth J., Yewlin E. Chee, Peter B. Veldman, and Dean Eliott. "Case 43: Large Zone III Open Globe from a Finger Injury While Playing Basketball." In Management of Open Globe Injuries, 499–508. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72410-2_48.

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Shimawaki, S., and N. Sakai. "Change in Blood Vessel Images of the Human Finger Using Near-Infrared Radiation While Compressing the Upper Arm." In IFMBE Proceedings, 1262–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14515-5_320.

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Steen, Mark. "God et al.— World-Making as Collaborative Improvisation: New Metaphors for Open Theists." In Abrahamic Reflections on Randomness and Providence, 311–37. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75797-7_15.

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AbstractThe Abrahamic traditions regard God as the world’s author. But what kind of author? A novelist? A playwright? Perhaps a composer of classical music? I will argue that it is best to regard God as like an improvisational play director or the leader of a jazz ensemble. Each determines the broad melodic contours or coarse-grained plot beforehand, while allowing their musicians or actors, and chance, to fill in the more fine-grained details. This analogy allows us to regard God as the ultimate author of this world, while allowing us to be, while less than co-authors, more than mere enactors of a pre-written piece. These metaphors are particularly well-suited to illustrate and flesh out an Open Theistic view of things.
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"Raynaud’s Vibration White Finger Syndrome." In Encyclopedia of Pain, 3366. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-28753-4_201873.

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Cruz-Jimenez, Maricarmen, and Ramon Cuevas-Trisan. "Ghostly White Hands That Come and Go." In Painful Conditions of the Upper Limb, 149–54. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780190066376.003.0019.

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The evaluation of hand pallor and discoloration requires immediate attention to assess vascular compromise and ischemia. Raynaud’s is a rare condition that affects approximately 5% of the U.S. population. It is a vascular condition that may be idiopathic (primary) or a manifestation of a systemic disease (secondary). It affects arteries, particularly at their most distal segments of the fingers and to a lesser degree the toes. The vessels suffer severe vasospasm that leads to ischemia and pain. The diagnosis is made by triggering the vasospasm using tests such as the cold stimulation test. Raynaud’s can be very disabling and painful, leading to finger and toe amputations in severe cases. The condition has no cure, and treatment modalities include some pharmacological and interventional analgesic procedures, with overarching goals centered around patient education, their awareness on how to protect their hands from attacks, and lifestyle modifications. Secondary Raynaud’s is primarily managed by treating the underlying cause and avoiding triggers.
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"Examples of Vibration-induced White Finger from the Use of Chain Saws." In Handbook of Human Vibration, 777–79. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-12-303040-5.50032-5.

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"Examples of Vibration-induced White Finger from the Use of Percussive Metal-working Tools." In Handbook of Human Vibration, 765–69. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-12-303040-5.50029-5.

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Conference papers on the topic "White finger"

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Stocks, S. Jill, Begoña Martinez-Jarreta, Riitta Sauni, and David A. Berk. "0405 Predicting the impact of the eu vibration directive on the prevalence of vibration white finger (vwf), carpal tunnel syndrome (cts) and sensorineural symptoms across europe." In Eliminating Occupational Disease: Translating Research into Action, EPICOH 2017, EPICOH 2017, 28–31 August 2017, Edinburgh, UK. BMJ Publishing Group Ltd, 2017. http://dx.doi.org/10.1136/oemed-2017-104636.333.

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Belzile, Bruno, and Lionel Birglen. "Instantaneous-Stiffness Plane Analysis of Underactuated Fingers." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47310.

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The general stiffness of an underactuated finger as seen from the actuator is a function of its internal compliant elements, such as springs, but also depends on its geometry. In this paper, a complete stiffness analysis of a general underactuated finger is presented. The objective is to shed light on important aspects to consider while designing underactuated fingers and how to take advantage of the finger’s stiffness during grasping, for instance in order to estimate information such as contact location and force magnitude. This is done using the instantaneous-stiffness plane of the finger introduced in this paper. This plane shows the relationship between the finger’s geometry and its instantaneous stiffness and how simple changes in geometrical parameters can have significant effects on the finger’s stiffness. This novel tool can be used for a wide range of underactuated finger architectures as will be shown. First, a theoretical framework including numerical simulations is presented. This is then followed by an optimization example of a finger’s geometry and a discussion.
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Chen, Yang-Che, Ian Chao-Ming Chang, Rongshun Chen, and Max Ti-Kuang Hou. "Modeling and Stability Analysis of Comb-Fingers in MEMS Electrostatic Actuators." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49731.

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This article presents a side electromechanical instability of slender comb-fingers in MEMS electrostatic devices. Two models are developed for predicting such side pull-in of comb-fingers; one is based in the lumped modeling technique and another is developed by FEM approach. In the slender finger array, the deflection of every finger and pull-in voltage can be calculated by the models. Results indicate every comb-finger bends with different amplitudes. In the finger array, few sided fingers are strongly deflected, the extreme sided fingers in particular, while other inner fingers show negligible deformations. We suggest these extreme sided fingers can dominate the side pull-in of the comb-fingers and should be considered with careful device design by employing the proposed models in this paper.
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Lan, Chao-Chieh, and You-Nien Yang. "An Analytical Design Method for a Shape Memory Alloy Wire Actuated Compliant Finger." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49045.

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This paper presents an analytical method to design a mechanical finger for robotic manipulations. As traditional mechanical fingers require bulky electro-magnetic motors and numerous relative-moving parts to achieve dexterous motion, we propose a class of fingers the manipulation of which relies on finger deflections. These compliant fingers are actuated by shape memory alloy (SMA) wires that exhibit high work-density, frictionless, and quite operations. The combination of compliant members with embedded SMA wires makes the finger more compact and lightweight. Various SMA wire layouts are investigated to improve their response time while maintaining sufficient output force. The mathematical models of finger deflection caused by SMA contraction are then derived along with experimental validations. As finger shapes are essential to the range of deflected motion and output force, we find its optimal initial shapes through the use of a shape parameterization technique. We further illustrate our method by designing a humanoid finger that is capable of three-dimensional manipulation. As compliant fingers can be fabricated monolithically, we expect the proposed method to be utilized for applications of various scales.
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Ng, Kim-Gau, and Joey K. Parker. "A Two-Encoder Finger Position Sensing System for a Two-Degree-of-Freedom Robot Hand." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0171.

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Abstract As part of a robot hand with two independently controlled fingers each having one degree of freedom, a novel two-encoder position sensing system was designed for each of the fingers. In this system, a combination of a linear encoder and a rotary encoder is used to indicate finger position. The linear encoder provides coarse measurements while the rotary encoder provides fine measurements between two adjacent linear encoder counts. This two-encoder system permits more precise measurements than a system with only the linear encoder. The two encoders are connected to an IBM PC through an interface system. This paper presents the complete design and implementation of this two-encoder position sensing system.
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Hamazaki, Daisuke, and Tatsuhito Hasegawa. "Finger Recognition Using a Wearable Device while Typing." In CIIS 2019: 2019 The 2nd International Conference on Computational Intelligence and Intelligent Systems. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3372422.3372440.

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Wu, Lianjun, and Yonas Tadesse. "Humanoid Robot Hand With SMA Actuators and Servo Motors." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-39326.

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This paper describes the design of a child humanoid robot hand with SMA actuators and servo motors. Human hands can grasp and manipulate complicated objects relying on its flexible structure and real-time control. However, it is difficult to replicate an exact human hand using rigid structures because of intricate biomechanical structure. In human hand, one metacarpal and three phalanges make up each finger, except for the thumb which only has two phalanges. Each finger except the thumb is composed of 3 joints: the metacarpophalangeal (MCP), the proximal interphalangeal (PIP) and distal interphalangeal joints (DIP). The DIP and PIP joints are always moving simultaneously, while the MCP joint can move independently. The child-sized robot hand is developed which replicates a seven year-old child’s hand in its fundamental structure. The robot hand has five fingers and all the fingers consist of 3 links. Servo motors and shape memory alloy actuators were used as a drive mechanism for the fingers and mathematical model of the SMA actuators are described to study the finger dynamics. A prototype humanoid robot hand was fabricated using 3D printing techniques and experimental results are presented.
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Rouleau, Michael, and Dennis Hong. "Design of an Underactuated Robotic End-Effector With a Focus on Power Tool Manipulation." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35513.

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End-effectors require careful design considerations to be able to successfully hold and use power tools while maintaining the ability to also grasp a wide range of other objects. This paper describes the design of an end effector for a humanoid robot built for disaster response scenarios. The end effector is comprised of two independently actuated fingers with two opposing stationary rigid hollow pylons built to allow the pinching of objects and to provide protection for the opposing fingers when retracted and not in use. Each finger has two degrees of freedom (DOF) and is actuated with one servo motor through the use of an underactuated four bar linkage. Using only two fingers and two actuators the end-effector has the ability to hold a power tool while also being able to simultaneously actuate the trigger of the tool independently. The combination of compliant fingers and rigid pylons along with the careful design of the palm structure creates a strong robust dexterous end-effort that is simple to control.
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Konchar, Janelle, Peter Popper, Matthew Griffith, and James Glancey. "Modeling and Testing of a New Polymer-Based Impact Tool Design to Reduce Noise, Vibration and Biomechanical Injuries." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14416.

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A new power impact tool design has been developed and tested using advanced engineering polymers to replace traditional metal components. The new polymer-metal impact mechanism generates less noise, lower vibrations, and potentially reduces biomechanical injuries. Power tools are known to cause several medical ailments including Hand-Arm Vibration Syndrome (HAV), Raynaud's phenomenon, and Vibration White Finger unless the daily exposure and/or dosage is limited. To evaluate the effects of a polymer-metal impact mechanism on tool performance, a non-linear model describing the equations of motion and resulting output forces were developed. In addition, a number of experiments with a high frequency Instron test machine and prototype tools were performed to validate the model and compare performance of conventional power tools to the new polymer based design. The results show that although adding a polymer does reduce noise and vibration, the reduction in impact force is relatively small and statistically insignificant. Various polymer materials and shapes were evaluated and results show that for durability and performance, the optimum appears to be a plug inserted in a cavity in either the piston or the cutting tool, thus creating a state of confined compression on the polymer. The polymer used in this research was Minlon® (mineral reinforced Nylon66), and durability was improved when the polymer inserts were cycled with compressive loads before use in the power tool.
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Gao, Yuan, Xiguang Huang, Ishan Singh Mann, and Hai-Jun Su. "A Novel Variable Stiffness Compliant Robotic Gripper Based on Layer Jamming." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-98294.

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Abstract In this paper, we present a novel compliant robotic gripper with three variable stiffness fingers. While the shape morphing of the grippers is cable-driven, the stiffness variation is enabled by layer jamming. The inherent flexibility makes compliant grippers suitable for tasks such as grasping soft and irregular objects. However, their relatively low load capacity due to low structural stiffness limits their applications. Variable stiffness robotic grippers have the potential to address this challenge as their stiffness can be tuned on demand based on the needs of tasks. Layer jamming is an emerging method for variable stiffness due to its advantages of light weight, simple and quick actuation. In our design, the compliant backbone of the fingers is made of 3d printed PLA material. Four thin film materials are attached to each side of the skeleton. The working process of the robotic gripper follows two basic steps. First, the compliant skeleton is bent to a desired shape by actuating a tension cable via a servo motor. Second, upon application of a negative pressure by a vacuum pump, the finger is stiffened up owing to the increasing of the friction between contact surfaces of layers preventing their relative movement. Since the structural stiffness of the fingers is increased, their load capacity will be increased proportionally. When the air pressure is sufficiently large, the morphed shape can even be locked (no slipping). Test for stiffness of individual finger and load capacity of the robotic gripper are conducted to validate capability of the design. The results showed a 69-fold increase in stiffness of individual finger and a 30-fold increase in gripper’s load capacity.
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Reports on the topic "White finger"

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Trujillo, Stanley, Stephen Bruce Schreiber, John Worth Mcneel, Robert A. Monsalve-Jones, Mark Welsh, Greg N. Ortega, Xavier Baltazar Martinez, and Ruby A. Padilla. NCO-5 Technician Cuts Finger while Cutting Gasket Material. Office of Scientific and Technical Information (OSTI), December 2015. http://dx.doi.org/10.2172/1229717.

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Wright, Kirsten. Collecting Plant Phenology Data In Imperiled Oregon White Oak Ecosystems: Analysis and Recommendations for Metro. Portland State University, March 2020. http://dx.doi.org/10.15760/mem.64.

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Highly imperiled Oregon white oak ecosystems are a regional conservation priority of numerous organizations, including Oregon Metro, a regional government serving over one million people in the Portland area. Previously dominant systems in the Pacific Northwest, upland prairie and oak woodlands are now experiencing significant threat, with only 2% remaining in the Willamette Valley in small fragments (Hulse et al. 2002). These fragments are of high conservation value because of the rich biodiversity they support, including rare and endemic species, such as Delphinium leucophaeum (Oregon Department of Agriculture, 2020). Since 2010, Metro scientists and volunteers have collected phenology data on approximately 140 species of forbs and graminoids in regional oak prairie and woodlands. Phenology is the study of life-stage events in plants and animals, such as budbreak and senescence in flowering plants, and widely acknowledged as a sensitive indicator of environmental change (Parmesan 2007). Indeed, shifts in plant phenology have been observed over the last few decades as a result of climate change (Parmesan 2006). In oak systems, these changes have profound implications for plant community composition and diversity, as well as trophic interactions and general ecosystem function (Willis 2008). While the original intent of Metro’s phenology data-collection was to track long-term phenology trends, limitations in data collection methods have made such analysis difficult. Rather, these data are currently used to inform seasonal management decisions on Metro properties, such as when to collect seed for propagation and when to spray herbicide to control invasive species. Metro is now interested in fine-tuning their data-collection methods to better capture long-term phenology trends to guide future conservation strategies. Addressing the regional and global conservation issues of our time will require unprecedented collaboration. Phenology data collected on Metro properties is not only an important asset for Metro’s conservation plan, but holds potential to support broader research on a larger scale. As a leader in urban conservation, Metro is poised to make a meaningful scientific contribution by sharing phenology data with regional and national organizations. Data-sharing will benefit the common goal of conservation and create avenues for collaboration with other scientists and conservation practitioners (Rosemartin 2013). In order to support Metro’s ongoing conservation efforts in Oregon white oak systems, I have implemented a three-part master’s project. Part one of the project examines Metro’s previously collected phenology data, providing descriptive statistics and assessing the strengths and weaknesses of the methods by which the data were collected. Part two makes recommendations for improving future phenology data-collection methods, and includes recommendations for datasharing with regional and national organizations. Part three is a collection of scientific vouchers documenting key plant species in varying phases of phenology for Metro’s teaching herbarium. The purpose of these vouchers is to provide a visual tool for Metro staff and volunteers who rely on plant identification to carry out aspects of their job in plant conservation. Each component of this project addresses specific aspects of Metro’s conservation program, from day-to-day management concerns to long-term scientific inquiry.
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Akinleye, Taiwo, Idil Deniz Akin, Amanda Hohner, Indranil Chowdhury, Richards Watts, Xianming Shi, Brendan Dutmer, James Mueller, and Will Moody. Evaluation of Electrochemical Treatment for Removal of Arsenic and Manganese from Field Soil. Illinois Center for Transportation, June 2021. http://dx.doi.org/10.36501/0197-9191/21-019.

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Soils containing inorganic compounds are frequently encountered by transportation agencies during construction within the right-of-way, and they pose a threat to human health and the environment. As a result, construction activities may experience project delays and increased costs associated with management of inorganic compounds containing soils required to meet environmental regulations. Recalcitrance of metal-contaminated soils toward conventional treatment technologies is exacerbated in clay or organic content-rich fine-grained soils with low permeability and high sorption capacity because of increased treatment complexity, cost, and duration. The objective of this study was to develop an accelerated in situ electrochemical treatment approach to extract inorganic compounds from fine-grained soils, with the treatment time comparable to excavation and off-site disposal. Three reactor experiments were conducted on samples collected from two borehole locations from a field site in Illinois that contained arsenic (As)(~7.4 mg/kg) and manganese (Mn)(~700 mg/kg). A combination of hydrogen peroxide (H2O2) and/or citrate buffer solution was used to treat the soils. A low-intensity electrical field was applied to soil samples using a bench-scale reactor that resembles field-scale in situ electrochemical systems. For the treatment using 10% H2O2 and citrate buffer solution, average removal of 23% and 8% were achieved for Mn and As, respectively. With 4% H2O2 and citrate buffer, 39% and 24% removal were achieved for Mn and As; while using only citrate buffer as the electrolyte, 49% and 9% removal were achieved for Mn and As, respectively. All chemical regimes adopted in this study reduced the inorganic compound concentrations to below the maximum allowable concentration for Illinois as specified by the Illinois Environmental Protection Agency. The results from this work indicate that electrochemical systems that leverage low concentrations of hydrogen peroxide and citrate buffer can be effective for remediating soils containing manganese and arsenic.
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A 15-year-old student amputates fingers while operating an unguarded table saw in woodworking class - Massachusetts. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, October 2003. http://dx.doi.org/10.26616/nioshsface03ma1nf.

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