BASIS VARIABILITY AND ITS EFFECTS ON HEDGING EFFICIENCY FOR KENTUCKY FEEDER CATTLE

Kentucky plays a vital role in the beef supply chain. The cow/calf producers,back-grounding operations, and order buying industry are important parts of Kentucky\u27sagricultural economy. Basis risk is an issue that affects these groups in a negative way. Agood estimate of the expected basis must be available to make hedging efficient.Simulations were performed on Kentucky price data to determine the effectiveness ofshort hedging for Kentucky producers. A model was also used to describe some of thefactors that determine basis levels. The research revealed that it is difficult to predictbasis within an acceptable range to make short hedging with futures efficient. Eventhough short hedging reduced variability in net price, it was difficult to lock in a profit.Various options and spread strategies were presented as alternative hedging tools thatwould protect cattle producers from unexpected price declines

Photography Practicum: Learning The Basics Of Managing A Fine Art Photography Studio

The photography practicum provides Art and Design student researchers with the practical experience of managing a fine art photography studio. Students learn how to operate, manage, and maintain industry standard fine art archival inkjet printers as well as a twelve-station traditional black and white darkroom. This project provides essential expertise and knowledge that students, as lab monitors, both share with other students and incorporate into their own fine art practice and professional activities. Student researchers learn how to mix, store, and dispose of photographic chemistry, provide daily assistance to undergraduate and graduate photography students, and generate ideas for improvements to the lab. Additionally, students improve their knowledge of various analog and digital photographic processes through self-directed research with the goal of helping other students learn how to further develop and understand their work. Students also contribute to the ongoing revision of the Photography Lab Manual, which specifies best practices and operating procedures for future photography lab monitors. The practical knowledge gained from this experience is highly valuable to colleges, universities, community colleges, artist co-ops, and professional photography labs that seek to employ individuals to manage and teach both digital and analog photographic practices. This research was funded with an Undergraduate Research Fellowship.https://scholarworks.moreheadstate.edu/celebration_posters_2021/1031/thumbnail.jp

Photography Practicum: Learning the Basics of Managing a Fine Art Photography Darkroom

This research project provides the students with practical experience in the management of a fine art photography lab and darkroom. The students will learn how to mix and store photographic chemistry, provide assistance to undergraduate and graduate photography students, and generate ideas for improvements to the lab. The students will contribute to the revision of a lab manual that specifies best practices and operating procedures for photography lab monitors. The students will also assist other students with digital printing, as needed. Additionally, the student will improve his/her knowledge of various analog and digital photographic processes through selfdirected research with the goal of helping other students learn how to further develop and understand their work.https://scholarworks.moreheadstate.edu/celebration_posters_2023/1033/thumbnail.jp

Management and radiographic outcomes of femoral head fractures.

BackgroundFemoral head fractures are uncommon injuries. Small series constitute the majority of the available literature. Surgical approach and fracture management is variable. The purpose of this study was to evaluate the incidence, method of treatment, and outcomes of consecutive femoral head fractures at a regional academic Level I trauma center.Materials and methodsA retrospective review of a prospective database was performed over a 13-year period. All AO/OTA 31C femoral head fractures were identified. A surgical approach and fixation method was recorded. Clinical and radiographic evaluation was performed for patients with 6 months or greater follow-up. Radiographs were evaluated for fixation failure, heterotopic ossification (HO), avascular necrosis (AVN) and post-traumatic arthritis.ResultsWe identified 164 fractures in 163 patients; 147 fractures were available for review. Treatment was operative reduction and internal fixation (ORIF) in 78 (53.1%), fragment excision in 37 (25.1%) and non-operative in 28 (19%). An anterior approach and mini-fragment screws were used in the majority of patients treated with fixation. Sixty-nine fractures had follow-up greater than 6 months. Sixty-two fractures (89.9%) proceeded to uneventful union. All Pipkin III fractures failed operative fixation. Six patients developed AVN, seven patients had a known conversion to hip arthroplasty; HO developed in 28 (40.6%) patients and rarely required excision.ConclusionsFractures of the femoral head are rare. An anterior approach can be used for fragment excision or fixation using mini-fragment screws. Pipkin III fractures represent catastrophic injuries. Non-bridging, asymptomatic HO is common. AVN and posttraumatic degenerative disease of the hip occur but are uncommon.Level of evidenceIV-prognostic

Transsacral screw safe zone size by sacral segmentation variations

Variations in sacral segmentation may preclude safe placement of transsacral screws for posterior pelvis fixation. We developed a novel automated 3D technique to determine the safe zone size for transsacral screws in the upper two sacral segments in 526 adult pelvis computed tomography scans. Safe zone sizes were then compared by gender and sacral segmentation variations (number of neuroforamen and the presence/absence of lumbosacral transitional vertebrae, ±LSTV). Ten millimeters was used as the safety threshold for a large screw. 3 (0.6%), 366 (70%), and 157 (30%) sacra had 3, 4, or 5 neuroforamen, respectively. Eighty‐eight (17%) were +LSTV. Safe zone size depended on gender, number of neuroforamen in −LSTV sacra and presence of LSTV (p < 0.001) but not on the uni‐ or bilateral nature of the LSTV. 17% of −LSTV sacra were below the safety threshold in S1, 27% in S2, whereas 3% of +LSTV sacra were below in S1, 74% in S2. Of −LSTV sacra that cannot take an S1 screw safely, 77% can do so in S2, leaving only 4% of sacra that cannot accommodate a screw safely in either upper segment. The results demonstrate a predictable pattern of safe zone size based on gender and sacral segmentation variations. © 2014 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 33:277–282, 2015.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/110618/1/jor22739.pd

Photography Practicum: Learning the Basics of Managing a Fine Art Photography Darkroom

The photography practicum provides Art and Design student researchers with the practical experience of managing a fine art photography studio. Students learn how to operate, manage, and maintain industry-standard fine art archival inkjet printers as well as a fourteen-station traditional black and white darkroom. This project provides essential expertise and knowledge that students, as lab monitors, both share with other students and incorporate into their own fine art practice and professional activities. Student researchers learn how to mix, store, and dispose of photographic chemistry, provide daily assistance to undergraduate and graduate photography students, and generate ideas for improvements to the lab. Additionally, students improve their knowledge of various analog and digital photographic processes through self-directed research with the goal of helping other students learn how to further develop and understand their work. Students also contribute to the ongoing revision of the Photography Lab Manual, which specifies best practices and operating procedures for future photography lab monitors. The practical knowledge gained from this experience is highly valuable to colleges, universities, community colleges, artist coops, and professional photography labs that seek to employ individuals to manage and teach both digital and analog photographic practices. This research was funded with an Undergraduate Research Fellowship.https://scholarworks.moreheadstate.edu/celebration_posters_2022/1031/thumbnail.jp

Dying and rising with Christ in Colossians.

Colossians was written to a congreaation threatened by a jewish mystical teaching which offered a proleptic experience of salvation in the form of visionary journeys to heaven. To counter this false teaching the writer reminds the readers of the blessinas they already possess, centrina his araument around their participation with Christ in his death and resurrection. Christ himself is identified as God's end-time aaent of reconciliation and new creation, who, throuah his death and resurrection, restores the cosmos to the state of harmony God intended from the beainnina (1:ll-20). To accompllsh this tast Christ identified himself with humanity's fallen state and made himself responsible for their sins. By dying their death he secured acquittal before the divine tribunal and victory over the hostile spirits (2:13-15). In his triumphal passage from death to new life he inaugurated the new age and became the founder of the new redeemed human race as a second Adam (1:18). In these eventl Christ acted in a representative capacity so that his experience of deliverance might be both the basis and the prototype of the salvation or believers. In conversion-baptism ChrIstians become participants in ChrIst's death and resurrection as God includes them in his saving acts towards Christ by pronouncing on them the same verdict of acquittal and exercising anew the same life-giving power towards them as when he raised Christ from the dead. Thus they are made to pass with Christ out of the old fallen existence in which they were subject to the hostile spirits and the reliaious rules and reaulations (stoicheia) of this world, and they enter the heavenly life of the new creation. Although Christians have been raised with Christ (as Paul also atrirms in Rom 6), they possess this new life only in preliminary form and in hiddenness (3:3). They must yet strive to actualize this salvation by putting to death what remains within of the old existence (3:5-11) and cultivating Christlike virtues as they await the parousia, when they will enter upon this resurrection life in its fullness (3:4)

Assessment of a percutaneous iliosacral screw insertion simulator.

International audienceBACKGROUND: Navigational simulator use for specialized training purposes is rather uncommon in orthopaedic and trauma surgery. However, it reveals providing a valuable tool to train orthopaedic surgeons and help them to plan complex surgical procedures. PURPOSE: This work's objective was to assess educational efficiency of a path simulator under fluoroscopic guidance applied to sacroiliac joint percutaneous screw fixation. MATERIALS AND METHODS: We evaluated 23 surgeons' accuracy inserting a guide-wire in a human cadaver experiment, following a pre-established procedure. These medical trainees were defined in three prospective respects: novice or skilled; with or without theoretical knowledge; with or without surgical procedure familiarity. Analysed criteria for each tested surgeon included the number of intraoperative X-rays taken in order to achieve the surgical procedure as well as an iatrogenic index reflecting the surgeon's ability to detect any hazardous trajectory at the time of performing said procedure. RESULTS: An average number of 13 X-rays was required for wire implantation by the G1 group. G2 group, assisted by the simulator use, required an average of 10 X-rays. A substantial difference was especially observed within the novice sub-group (N), with an average of 12.75 X-rays for the G1 category and an average of 8.5 X-rays for the G2 category. As far as the iatrogenic index is concerned, we were unable to observe any significant difference between the groups

2D-fluoroscopic navigated percutaneous screw fixation of pelvic ring injuries - a case series

<p>Abstract</p> <p>Background</p> <p>Screw fixation of pelvic ring fractures is a common, but demanding procedure and navigation techniques were introduced to increase the precision of screw placement. The purpose of this case series was the evaluation of screw misplacement rate and functional outcome of percutaneous screw fixation of pelvic ring disruptions using a 2D navigation system.</p> <p>Methods</p> <p>Between August 2004 and December 2007, 44 of 442 patients with pelvic injuries were included for closed reduction and percutaneous screw fixation of disrupted pelvic ring lesions using an optoelectronic 2D-fluoroscopic based navigation system. Operating and fluoroscopy time were measured, as well as peri- and postoperative complications documented. Screw position was assessed by postoperative CT scans. Quality of live was evaluated by SF 36-questionnaire in 40 of 44 patients at mean follow up 15.5 ± 1.2 month.</p> <p>Results</p> <p>56 iliosacral- and 29 ramus pubic-screws were inserted (mean operation time per screw 62 ± 4 minutes, mean fluoroscopy time per screw 123 ± 12 seconds). In post-operative CT-scans the screw position was assessed and graded as follows: I. secure positioning, completely in the cancellous bone (80%); II. secure positioning, but contacting cortical bone structures (14%); III. malplaced positioning, penetrating the cortical bone (6%). The malplacements predominantly occurred in bilateral overlapping screw fixation. No wound infection or iatrogenic neurovascular damage were observed. Four re-operations were performed, two of them due to implant-misplacement and two of them due to implant-failure.</p> <p>Conclusion</p> <p>2D-fluoroscopic navigation is a safe tool providing high accuracy of percutaneous screw placement for pelvic ring fractures, but in cases of a bilateral iliosacral screw fixation an increased risk for screw misplacement was observed. If additional ramus pubic screw fixations are performed, the retrograde inserted screws have to pass the iliopubic eminence to prevent an axial screw loosening.</p