Journal articles: 'Rading recovery'

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Tilling, Lindsey, Joanne Hunt, Ann Donald, Brian Clapp, and Phil Chowienczyk. "Arterial Injury and Endothelial Repair: Rapid Recovery of Function after Mechanical Injury in Healthy Volunteers." Cardiology Research and Practice 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/367537.

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Objective. Previous studies suggest a protracted course of recovery after mechanical endothelial injury; confounders may include degree of injury and concomitant endothelial dysfunction. We sought to define the time course of endothelial function recovery using flow-mediated dilation (FMD), after ischaemia-reperfusion (IR) and mechanical injury in patients and healthy volunteers. The contribution of circulating CD133+/CD34+/VEGFR2+“endothelial progenitor” (EPC) or repair cells to endothelial repair was also examined.Methods. 28 healthy volunteers aged 18–35 years underwent transient forearm ischaemia induced by cuff inflation around the proximal biceps and radial artery mechanical injury induced by inserting a wire through a cannula. A more severe mechanical injury was induced using an arterial sheath and catheter inserted into the radial artery of 18 patients undergoing angiography.Results. IR and mechanical injury produced immediate impairment of FMD (from 6.5 ± 1.2% to 2.9 ± 2.2% and from 7.4 ± 2.3% to 1.5 ± 1.6% for IR and injury, resp., eachP<0.001) but recovered within 6 hours and 2 days, respectively. FMD took up to 4 months to recover in patients. Circulating EPC did not change significantly during the injury/recovery period in all subjects.Conclusions. Recovery of endothelial function after IR and mechanical injury is rapid and not associated with a change in circulating EPC.

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Wilson,, Megan, and Gayle L. Casterline,. "Using Caring-Science to Design a Healing Environment for Transradial Catheterization Recovery." International Journal of Human Caring 17, no. 2 (March 2013): 50–58. http://dx.doi.org/10.20467/1091-5710.17.2.50.

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The medical approach to performing a cardiac catheterization is changing from femoral artery to radial artery access. This technique radically changes patient recovery, as patients can sit up immediately following the procedure, ambulate almost immediately post procedure, and may recover in their street clothes. Nursing care and the healing environment was reframed using Watson’s (2008) theory of human caring to enhance patient outcomes and to improve nursing quality indicators for patients undergoing a transradial catheterization and recovery. The design of a radial recovery lounge or cath café was undertaken using a theory-guided nursing approach to create a holistic caring-healing environment.

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Kennedy, Fraser, and Philip Bull. "Statistical recovery of the BAO scale from multipoles of the beam-convolved 21 cm correlation function." Monthly Notices of the Royal Astronomical Society 506, no. 2 (July 7, 2021): 2638–58. http://dx.doi.org/10.1093/mnras/stab1814.

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ABSTRACT Despite being designed as an interferometer, the MeerKAT radio array (a Square Kilometre Array pathfinder) can also be used in autocorrelation (‘single-dish’) mode, where each dish scans the sky independently. Operating in this mode allows extremely high survey speeds to be achieved, albeit at significantly lower angular resolution. We investigate the recovery of the baryon acoustic oscillation (BAO) scale from multipoles of the redshift-space correlation function as measured by a low angular resolution 21 cm intensity mapping survey of this kind. Our approach is to construct an analytic model of the multipoles of the correlation function and their covariance matrix that includes foreground contamination and beam resolution effects, which we then use to generate an ensemble of mock data vectors from which we attempt to recover the BAO scale. In line with previous studies, we find that recovery of the transverse BAO scale α⊥ is hampered by the strong smoothing effect of the instrumental beam with increasing redshift, while the radial scale α∥ is much more robust. The multipole formalism naturally incorporates transverse information when it is available however, and so there is no need to perform a radial-only analysis. In particular, the quadrupole of the correlation function preserves a distinctive BAO ‘bump’ feature even for large smoothing scales. We also investigate the robustness of BAO scale recovery to beam model accuracy, severity of the foreground removal cuts, and accuracy of the covariance matrix model, finding in all cases that the radial BAO scale can be recovered in an accurate, unbiased manner.

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Kibazoni, Oscar, and Lonaard Damson. "Improvement of Hydraulic Press for Vegetable Oil Expression in Rural Areas." Tanzania Journal of Engineering and Technology 34, no. 1 (June 30, 2013): 55–62. http://dx.doi.org/10.52339/tjet.v34i1.459.

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Cultivation of oil producing crops especially Jatropha and croton as source of vegetable oil for biodiesel production is being encouraged in rural areas. To recover oil from seed, manual press is the feasible method in rural areas where there is no electricity. Research was conducted to improve hydraulic oil press machine for rural application. Factorsaffecting oil recovery were found to be: moisture content of seeds, operating pressure, seed oil content, and the amount of seeds pressed per batch. Percentage oil recovery was improved by reducing diameter of press cylinder, hence increasing expression pressure, and either reducing amount of seed processed per batch or placing disk within the seeds to improve oil flow. The maximum vegetable oil recovered from Jatropha seeds at a pressure of 20.8 MPa after improvement was 57.5% of the total oil in seeds. There was no significant difference in terms of oil recovery between pressing whole seeds or milled seeds. Suggested further improvement includes: higher pressure than 20.8 MPa, reduced radial distance travelled by oil and replacement of hydraulic jack with a self retracting double acting hydraulic power cylinder to reduce batch cycle.

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Gaur, S. C., and A. Swarup. "Radial Nerve Palsy Caused by Injections." Journal of Hand Surgery 21, no. 3 (June 1996): 338–40. http://dx.doi.org/10.1016/s0266-7681(05)80196-2.

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Fifty-six cases of radial palsy due to injections have been seen during the last 13 years. Thirteen patients recovered spontaneously. Seven patients were treated by neurolysis, of which five had full recovery in 1 year. The remaining patients were treated by modified Robert Jones transfers. In ten cases flexor carpi ulnaris was spared as a strong flexor of the wrist, which improved the results in heavy manual workers. Radial nerve palsy caused by injection is an avoidable injury. There is a need for proper training of paramedical workers.

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Ahmed, Mohd, Devinder Singh, Saeed AlQadhi, and Majed A. Alrefae. "Mesh Free Radial Point Interpolation Based Displacement Recovery Techniques for Elastic Finite Element Analysis." Mathematics 9, no. 16 (August 10, 2021): 1900. http://dx.doi.org/10.3390/math9161900.

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The study develops the displacement error recovery method in a mesh free environment for the finite element solution employing the radial point interpolation (RPI) technique. The RPI technique uses the radial basis functions (RBF), along with polynomials basis functions to interpolate the displacement fields in a node patch and recovers the error in displacement field. The global and local errors are quantified in both energy and L2 norms from the post-processed displacement field. The RPI technique considers multi-quadrics/gaussian/thin plate splint RBF in combination with linear basis function for displacement error recovery analysis. The elastic plate examples are analyzed to demonstrate the error convergence and effectivity of the RPI displacement recovery procedures employing mesh free and mesh dependent patches. The performance of a RPI-based error estimators is also compared with the mesh dependent least square based error estimator. The triangular and quadrilateral elements are used for the discretization of plates domains. It is verified that RBF with their shape parameters, choice of elements, and errors norms influence considerably on the RPI-based displacement error recovery of finite element solution. The numerical results show that the mesh free RPI-based displacement recovery technique is more effective and achieve target accuracy in adaptive analysis with the smaller number of elements as compared to mesh dependent RPI and mesh dependent least square. It is also concluded that proposed mesh free recovery technique may prove to be most suitable for error recovery and adaptive analysis of problems dealing with large domain changes and domain discontinuities.

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Iturralde, Jon, Mercedes Gómez de Arteche, Patricio Aguirre, Jorge Bárcena, Susana López, Eduardo Ubieta, Peru Fernandez Arroiabe, M. Mounir Bou-Ali, and Iñigo Unamuno. "Radiant waste heat recovery from steelmaking and glass industry." E3S Web of Conferences 116 (2019): 00029. http://dx.doi.org/10.1051/e3sconf/201911600029.

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This paper tackles the problem of industrial waste heat recovery through an unexploited heat transfer mechanism: thermal radiation. Energy intensive industries have a considerable potential of unused radiant heat, which cannot be recovered through existing methods. That potential energy is quantified for the main identified industries: steel and glassmaking. Then, a radiant heat capturing device allowing high temperature heat capture is designed according to process requirements. Finally, recoverable heat is estimated and potential uses are proposed.

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Li, Li, Li, Zeng, Ou, and Li. "Exergetic, Energetic, and Quality Performance Evaluation of Paddy Drying in a Novel Industrial Multi-Field Synergistic Dryer." Energies 12, no. 23 (December 2, 2019): 4588. http://dx.doi.org/10.3390/en12234588.

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The present work proposes a novel industrial multi-field synergistic dryer with a drying capacity of 3.45 t/h. The energy, exergy, and quality aspects of the drying process were studied. An energy–exergy methodology was employed to estimate the energetic and exergetic performance, heat loss characteristics and heat recovery behavior of the dryer. Additionally, the quality of the dried paddy seeds was evaluated by its crackle ratio, generation potential, and generation rate. The results showed that the overall energy and exergy efficiency ranged from 13.26% to 56.63% and 39.03% to 60.23%, respectively. The improvement potential rates of the whole system varied from the lowest 8.49 kW to the highest 15.83 kW and respectively accounted for 15.81%–29.48% of the total exergy input, indicating that the performance of the dryer is acceptable. The total recovered radiant energy and radiant exergy recover rate were respectively ascertained to be 237.64 MJ and 0.26 kW. As for the quality aspect, the generation potential and generation rate of the dried paddy seeds respectively ranged from 75% to 90% and 69% to 88% while the crackle ratio of the paddy seeds was 1%, which indicated that the quality performance of the dried seed is of economic viability.

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Laubscher, M., M. Held, M. Maree, and M. Solomons. "RADIAL NERVE LACERATIONS — THE OUTCOME OF END-TO-END REPAIRS IN PENETRATING TRAUMA." Hand Surgery 20, no. 01 (January 2015): 67–72. http://dx.doi.org/10.1142/s0218810415500094.

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Due to its mostly motor content, repair of the radial nerve is considered to yield favourable results. This is despite the fact that there are limited studies looking at the outcomes of end-to-end repair secondary to sharp penetrating trauma. We retrospectively reviewed the outcome of a series of repaired level 2 and level 3 radial nerves following penetrating stab injuries. Twenty-seven cases with adequate follow-up were included. All the patients underwent direct end-to-end repair. We evaluated the motor recovery of the target muscles using the British Medical Research Council (MRC) grading system. Wrist extension recovered in 93% of cases at a mean of six months. Finger extension recovered in 74% and thumb extension in 52% of cases within the follow-up period. We conclude that end-to-end repair is possible in the majority of level 2 and level 3 radial nerve lacerations secondary to penetrating stab injuries. Acceptable results can be expected.

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Tretyak, I. B., I. V. Kovalenko, A. A. Gatskiy, and A. I. Tretyakova. "Surgical management of the proximal injury to the nerves of the upper extremity: strategy at overcoming multiple critical gaps." Reports of Vinnytsia National Medical University 22, no. 1 (August 8, 2018): 178–84. http://dx.doi.org/10.31393/reports-vnmedical-2018-22(1)-34.

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Aim of the study — to evaluate the outcomes of reconstruction procedures at complete injuries of brachial plexus in subclavicular region. The retrospective analysis of the reconstruction procedures in 3 men and one woman (mean age 36,4 years) with complete injury of brachial plexus in subclavicular region was conducted. Injury to musculocutaneuos, median, ulnar and radial nerves was accompanied by axillary (2 cases) or brachial (2 cases) artery injury. One patient had no injury to musculocutaneous nerve within the injury’s structure. All patients underwent surgical reconstruction of the neural structures 4,8 months (mean term) post initial vascular surgery. The autografting was the main reconstruction procedure of the long nerves of the upper extremity at their critical gap (mean gap 10,5cm) with donor-nerves of the small (sural nerve) and large (ulnar nerve) cross sectional diameter. Both motor and sensory components of recovery were evaluated with MRC Scale and Seddon Scale respectively. Each patient evaluated the recovered median nerve mediated functions with Brief Michigan Hand Questionnaire. It was revealed that one patients showed poor recovery of the entire complex of the muscles of the upper and lower arm (MRSC 2 points or lower). Two patients showed good recovery of the biceps brachii muscle (MRCS score 5 points) on 14th and 13th month respectively. Mean MRC Scale score among three patients for the muscles of the anterior compartment of the forearm was: 3,3 points for m. flexor pollicis longus, 3,6 points for mm. flexores digitorum and 4 points for m. flexor carpi radialis respectively. Mean MRC Scale score among three patients for the muscles of the posterior compartment of the forearm was: 2,6 points for m. extensor pollicis longus, 3,3 points for m. extensor digitorum sublimis and 4 points for radial wrist extensors respectively. The median nerve mediated sensation recovered to 2,3 points on Seddon scale. Only one patient showed effective recovery of the thumb opposition. Loss of ulnar nerve mediated functions was expectable among all 4 enrolled patients, thereafter we observed no recovery of key pinch and diagonal volar grip. Three patients showed recovery of transversal volar grip only. Mean Brief MHQ score was 55,55 points – unsatisfactory recovery. The reconstruction of the ulnar nerve, thereafter recovery of the “intrinsics”, should be the priority in terms of reanimation of the basic grips and pinches of the upper extremity – one should avoid harvesting of the ulnar nerve at multiple nerve injury cases; the expectable loss of functions at the utililization of the radial nerve as a donor nerve, could be easily recompensed with the tendon transfer procedures in later terms.

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Akhavan-Sigari, Reza, Dorothee Mielke, Afshin Farhadi, and Veit Rohde. "Study of Radial Nerve Injury Caused By Gunshot Wounds and Explosive Injuries among Iraqi Soldiers." Open Access Macedonian Journal of Medical Sciences 6, no. 9 (September 20, 2018): 1622–26. http://dx.doi.org/10.3889/oamjms.2018.346.

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BACKGROUND: Gunshot wounds and blast injuries to the upper limbs produce complex wounds requiring management by multiple surgical specialities. AIM: We sought to determine the pattern of peripheral nerve injuries among Iraqi soldiers in the war. METHODS: We performed a 3 year retrospective cohort analysis based on medical records of patients with sustaining gunshot wounds and blast injuries to the upper limbs. Ethical approval was obtained from the institutional review board. The patients included were male, serving military personnel of all age groups and ranks presenting with weakness or sensory loss of radial nerve. Three hundred eighteen patients aged 24 years or older with a high-energy, diaphyseal fracture of the humerus and complete motor and sensory radial nerve palsy were reviewed retrospectively. In these patients, the physical examination and electrodiagnostic study were carried out by experienced neurologists. Seddon's classification system was used to assess the severity of the injury. The data related to the types of fracture, the type of damage, the factors causing damage and the failure of treatment were entered into the IBM SPSS 23 software after extraction of files. Based on mid-range indicators and data distribution, traumatic injuries among Iraqi soldiers in the war against ISIL were then investigated. RESULTS: A group of 318 patients with mean age of 25.41 ± 6 years were enrolled in the study, of which 127 patients were included with an open fracture and 191 patients with closed lesions. All 127 patients with a transected radial nerve had an open humerus fracture and were part of a complex upper-extremity injury. 113 of 127 subjects had primary repair of the radial nerve and recovered well. 14 of 127 subjects were not recovered. 3 of them had iatrogenic radial nerve injury due to the internal fixation device. Furthermore, all 191 patients with closed injuries recovered well. The average time to initial signs of recovery was 8 weeks (range, 1–27 weeks). Axonotmesis and Neurotmesis were found in 283 (89%) subjects. The average time to full recovery was determined to be 6 months (range, 1–22 months). The blast was found to be the main cause of nerve injury in 236 (74.2%) cases, followed by gunshot damage (21.4%, 68 subjects), falling from height and motor vehicle accidents (4.4%, 14 subjects) and multiple injuries (17%, 54 cases). CONCLUSIONS: Trauma caused by factors such as explosions and gunshot worsens the condition of the injuries and presents the treatment conditions with many challenges. However, the success rate in post-surgical recovery of humerus fracture and injured radial nerve can be remarkably higher in young people as compared to other age groups.

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Bertelli, Jayme Augusto, and Marcos Flávio Ghizoni. "Grafting the C5 Root to the Musculocutaneous Nerve Partially Restores Hand Sensation in Complete Palsies of the Brachial Plexus." Neurosurgery 71, no. 2 (April 2, 2012): 259–63. http://dx.doi.org/10.1227/neu.0b013e3182571971.

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Abstract BACKGROUND: In complete brachial plexus palsy, we have hypothesized that grafting to the musculocutaneous nerve should restore some hand sensation because the musculocutaneous nerve can drive hand sensation directly or via communication with the radial and median nerves. OBJECTIVE: To investigate sensory recovery in the hand and forearm after C5 root grafting to the musculocutaneous nerve in patients with a total brachial plexus injury. METHODS: Eleven patients who had recovered elbow flexion after musculocutaneous nerve grafting from a preserved C5 root and who had been followed for a minimum of 3 years were screened for sensory recovery in the hand and forearm. Six matched patients who had not undergone surgery served as controls. Methods of assessment included testing for pain sensation using Adson forceps, cutaneous pressure threshold measurements using Semmes-Weinstein monofilaments, and the static 2-point discrimination test. Deep sensation was evaluated by squeezing the first web space, and thermal sensation was assessed using warm and cold water. RESULTS: All grafted patients recovered sensation in a variable territory extending from just over the thenar eminence to the entire lateral forearm and hand. Seven patients were capable of perceiving 2-0 monofilament pressure on the thenar eminence, palm, and dorsoradial aspect of the hand. All could differentiate warm and cold water. None recovered 2-point discrimination. None of the patients in the control group recovered any kind of sensation in the affected limb. CONCLUSION: Grafting the musculocutaneous nerve can restore nociceptive sensation on the radial side of the hand.

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Malamateniou, Christina, Amy K. McGuinness, Joanna M. Allsop, Declan P. O’Regan, Mary A. Rutherford, and Joseph V. Hajnal. "Snapshot Inversion Recovery: An Optimized Single-Shot T1-weighted Inversion-Recovery Sequence for Improved Fetal Brain Anatomic Delineation." Radiology 258, no. 1 (January 2011): 229–35. http://dx.doi.org/10.1148/radiol.10100381.

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Lutsyshyn, V. G., V. M. Maiko, O. V. Maiko, and M. O. Romanov. "REINSERTION OF THE DISTAL TENDON OF A BICEPS USING ENDOBUTTON FROM A SINGLE INCISION TECHNIQUE." Problems of traumatology and osteosynthesis, no. 1(19) (December 10, 2020): 75–86. http://dx.doi.org/10.51309/2411-6858-2020-19-1-75-86.

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Summary. Surgical treatment of biceps distal tendon ruptures shows better functional results, compared to a conservative treatment. Recently, the one-incision surgical technique is becoming more and more popular. Task of the study: representation of a technique to recover a distal biceps tendon with a single incision and fixation with an Endobutton. Materials and methods: the single-incision technique for a distal biceps tendon recovery comprises of several steps: an incision place and layer-wise access, preparation of the distal biceps tendon, preparation of the radial tuberosity, fixation of the tendon. Results. The knowledge of anatomy and the correct sequence of steps in the single-incision technique with the fixation of a tendon with Endobutton (by ChM) makes the recovery of distal biceps tendon efficient, reliable, and, what is more important, safe.

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Krivoshchekov, S. N., A. A. Kochnev, and K. A. Vyatkin. "TRENDS OF PERFECTION OF A FORMATION RADIAL OPENING TECHNOLOGY TO ENHANCE OIL RECOVERY OF HARD-TO-RECOVER RESERVES." Oilfield Engineering, no. 1 (2019): 32–35. http://dx.doi.org/10.30713/0207-2351-2019-1-32-35.

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Cuevas, F. J., M. Servin, and R. Rodriguez-Vera. "Depth object recovery using radial basis functions." Optics Communications 163, no. 4-6 (May 1999): 270–77. http://dx.doi.org/10.1016/s0030-4018(99)00143-1.

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Bertelli, Jayme Augusto, and Marcos Flávio Ghizoni. "Results of nerve grafting in radial nerve injuries occurring proximal to the humerus, including those within the posterior cord." Journal of Neurosurgery 124, no. 1 (January 2016): 179–85. http://dx.doi.org/10.3171/2014.12.jns141944.

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OBJECT Results of radial nerve grafting are largely unknown for lesions of the radial nerve that occur proximal to the humerus, including those within the posterior cord. METHODS The authors describe 13 patients with proximal radial nerve injuries who were surgically treated and then followed for at least 24 months. The patients’ average age was 26 years and the average time between accident and surgery was 6 months. Sural nerve graft length averaged 12 cm. Recovery was scored according to the British Medical Research Council (BMRC) scale, which ranges from M0 to M5 (normal muscle strength). RESULTS After grafting, all 7 patients with an elbow extension palsy recovered elbow extension, scoring M4. Six of the 13 recovered M4 wrist extension, 6 had M3, and 1 had M2. Thumb and finger extension was scored M4 in 3 patients, M3 in 2, M2 in 2, and M0 in 6. CONCLUSIONS The authors consider levels of strength of M4 for elbow and wrist extension and M3 for thumb and finger extension to be good results. Based on these criteria, overall good results were obtained in only 5 of the 13 patients. In proximal radial nerve lesions, the authors now advocate combining nerve grafts with nerve or tendon transfers to reconstruct wrist, thumb, and finger extension.

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Papalia, Igor, Aurelio Cardaci, Francesco Stagno d'Alcontres, Jennifer M. Lee, Pierluigi Tos, and Stefano Geuna. "Selection of the donor nerve for end-to-side neurorrhaphy." Journal of Neurosurgery 107, no. 2 (August 2007): 378–82. http://dx.doi.org/10.3171/jns-07/08/0378.

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Object The authors of other studies have reported that the selection of an agonistic donor nerve is required for recovering voluntary motor control after end-to-side nerve repair. In this experimental investigation, the authors' goal was to verify this assumption by performing end-to-side neurorrhaphy of the rat median nerve on its antagonistic radial nerve. Methods The left median nerve in 10 adult female rats was repaired by end-to-side neurorrhaphy after epineuriotomy on the radial nerve at the middle of the brachium. The time course of median nerve functional recovery was then assessed using the grasping test until postoperative Week 30. Before removing the nerve, the surgical site was carefully explored to exclude contamination by the proximal nerve stump, and the functional anatomy of median and radial nerves was assessed by electrical stimulation. Repaired nerves were then processed for resin embedding, and semithin sections were obtained for nerve fiber histomorphometry by using the dissector method. Results Repaired median nerves were repopulated by nerve fibers regenerating from the radial donor nerve as previously shown. Moreover, voluntary motor control of the flexor muscles innervated by the median nerve was progressively recovered beginning in postoperative Week 10 and reaching 42% of normal by Week 30. Conclusions Contrary to previously reported data, recovery of voluntary motor function after end-to-side nerve repair can also be expected when an antagonistic nerve is used as a donor nerve.

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Bansal, Amit. "Tardy posterior interosseous nerve palsy associated with operated proximal shaft of radius fracture: a rare case report." International Journal of Research in Orthopaedics 6, no. 5 (August 26, 2020): 1120. http://dx.doi.org/10.18203/issn.2455-4510.intjresorthop20203740.

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<p>Tardy Posterior interosseous nerve palsy (PIN) is rare diagnosis. It is a mostly motor nerve. It is prone to injury around radio-humeral joint due to its proximity to joint and neck of radius. Early diagnosis is must to improve recovery. In our case, 39-year-old male presented with tardy PIN palsy secondary to united proximal shaft radius fracture with implant in situ. Electrodiagnostic studies revealed motor radial neuropathy left upper limb. Magnetic resonance imaging (MRI) brachial plexus and screening of cervical spine was normal. After preoperative investigation, patient underwent PIN neurolysis with plate removal. Postoperatively patient started showing improvement after 2 months. Patient recovered to achieve good grip at end of 8 months. Early diagnosis followed by nerve exploration is necessary for good recovery and improvement.</p>

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Dudkiewicz, Edyta, and Paweł Szałański. "A review of heat recovery possibility in flue gases discharge system of gas radiant heaters." E3S Web of Conferences 116 (2019): 00017. http://dx.doi.org/10.1051/e3sconf/201911600017.

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Heating of large-cubage buildings accounts for significant share of energy consumption. The radiant heating system using gas heaters is a common solution for large-cubage halls and is considered to be energy efficient. There is a possibility of additional heat energy recovery from the flue gases of gas radiant heaters because new solutions were introduced to the market. Furthermore heat recovery consists the most promising solution and develop during the recent years rapidly. On the other hand, few works have been dedicated to heat recovery from exhaust gas but none of them consider exhaust gas from radiant heaters. Exhaust gas temperature depends on the type and efficiency of the gas heater. The selection of both the type of radiant heaters and the heat recovery system requires many factors to be taken into account. This study consider possibilities for application of different heat exchangers in exhaust gases system of gas radiant heaters. The authors propose to classify exhaust gas heat recovery systems in dependence on intermediary medium: water/air, gas heaters type: ceramic/tube and number (single/group) and their mounting location.

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Dang, Hongzhong, Ping Lu, Wenbin Yang, Hui Han, and Jun Zhang. "Drought-Induced Reductions and Limited Recovery in the Radial Growth, Transpiration, and Canopy Stomatal Conductance of Mongolian Scots Pine (Pinus sylvestris var. mongolica Litv): A Five-Year Observation." Forests 10, no. 12 (December 13, 2019): 1143. http://dx.doi.org/10.3390/f10121143.

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Determining plant–water relationships in response to drought events can provide important information about the adaptation of trees to climate change. The Mongolian Scots pine (Pinus sylvestris var. mongolica Litv), as one of the major tree species to control soil loss and desertification in northern China, has experienced severe degradation in recent decades. Here, we aimed to examine the impacts of a two-year consecutive drought and another year of drought on the radial growth, transpiration, and canopy stomatal conductance of Mongolian Scots pine over a five-year period, especially in terms of its recovery after drought. The study period during 2013–2017 consisted of a ‘normal’ year, a ‘dry year’, a ‘very dry’ year, a ‘wet’ year, and a ‘dry’ year, according to annual precipitation and soil moisture conditions. Based on measurements of the sap flow and diameters at breast height of 11 sample trees as well as the concurrent environmental factors, we quantified the reductions in tree radial growth, transpiration, and canopy stomatal conductance during the drought development as well as their recovery after the drought. The results showed that the tree radial growth, transpiration, and canopy stomatal conductance of Mongolian Scots pines decreased by 33.8%, 51.9%, and 51.5%, respectively, due to the two consecutive years of drought. Moreover, these reductions did not fully recover after the two-year drought was relieved. The minimum difference of these parameters between before and after the two-year consecutive drought period was 8.5% in tree radial growth, 45.1% in transpiration levels, and 42.4% in canopy stomatal conductance. We concluded that the two consecutive years of drought resulted in not only large reductions in tree radial growth and water use, but also their lagged and limited recoveries after drought. The study also highlighted the limited resilience of Mongolian Scots pine trees to prolonged drought in semi-arid sandy environmental conditions.

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Chan, Rebecca K. Y. "SPLINTING FOR PERIPHERAL NERVE INJURY IN UPPER LIMB." Hand Surgery 07, no. 02 (December 2002): 251–59. http://dx.doi.org/10.1142/s0218810402001229.

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The prognosis and speed of peripheral nerve recovery depend very much on the level of injury, severity of injury, the surgical intervention and the subsequent rehabilitative process. Many high level injuries may take years or months for the affected peripheral nerve to recover. Prolonged muscle imbalance causes joint contractures and over-stretching of denervated muscles. Without proper care, hand function recovery may be limited even the nerve regenerated afterwards. During the nerve regeneration period, splinting is one of the most useful modality to minimise deformities, prevent joint contractures and substitute loss motor control. Proper splinting encourages early use of the injured hand in daily activities. There are different types of splinting design for median nerve palsy, ulnar nerve palsy and radial nerve palsy. Dynamic splinting techniques are frequently employed to allow early prehension activities. Other therapeutic techniques, including pressure garment and sensory re-education are useful to enhance better functional return after nerve repair.

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Lin, Leou-Chyr, Thomas P. Hedman, Shyu-Jye Wang, Michael Huoh, and Shih-Youeng Chuang. "The Analysis of Axisymmetric Viscoelasticity, Time-Dependent Recovery, and Hydration in Rat Tail Intervertebral Discs by Radial Compression Test." Journal of Applied Biomechanics 25, no. 2 (May 2009): 133–39. http://dx.doi.org/10.1123/jab.25.2.133.

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The goal of this study was to develop a nondestructive radial compression technique and to investigate the viscoelastic behavior of the rat tail disc under repeated radial compression. Rat tail intervertebral disc underwent radial compression relaxation testing and creep testing using a custom-made gravitational creep machine. The axisymmetric viscoelasticity and time-dependent recovery were determined. Different levels of hydration (with or without normal saline spray) were supplied to evaluate the effect of changes in viscoelastic properties. Viscoelasticity was found to be axisymmetric in rat-tail intervertebral discs at four equidistant locations. Complete relaxation recovery was found to take 20 min, whereas creep recovery required 25 min. Hydration was required for obtaining viscoelastic axisymmetry and complete viscoelastic recovery.

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Vernooij, Meike W. "Remote Brain Iron Accumulation: A Useful Biomarker for Stroke Recovery?" Radiology 291, no. 2 (May 2019): 449–50. http://dx.doi.org/10.1148/radiol.2019190336.

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Walsh, Michael, Roy I. Davidovitch, and Kenneth A. Egol. "Ethnic Disparities in Recovery Following Distal Radial Fracture." Journal of Bone and Joint Surgery-American Volume 92, no. 5 (May 2010): 1082–87. http://dx.doi.org/10.2106/jbjs.h.01329.

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Ladd, A. L. "Ethnic Disparities in Recovery Following Distal Radial Fracture." Yearbook of Hand and Upper Limb Surgery 2011 (January 2011): 87–88. http://dx.doi.org/10.1016/j.yhls.2011.04.012.

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Peters, Dana C., René M. Botnar, Kraig V. Kissinger, Susan B. Yeon, Evan A. Appelbaum, and Warren J. Manning. "Inversion recovery radial MRI with interleaved projection sets." Magnetic Resonance in Medicine 55, no. 5 (2006): 1150–56. http://dx.doi.org/10.1002/mrm.20865.

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Salomão, Renan, Jairo Porfírio de Oliveira, Carolina Fernandes Junger, Luiz Cezar Soares Ricardo, Carlos Roberto de Lima, and Marcus Andre Acioly. "Delayed Transfer of the Extensor Carpi Radialis Brevis Branch of the Radial Nerve to the Anterior Interosseous Nerve for Restoration of Thumb and Index Finger Flexion: Case Report." Journal of Neurological Surgery Part A: Central European Neurosurgery 81, no. 06 (May 3, 2020): 571–74. http://dx.doi.org/10.1055/s-0039-3400950.

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AbstractHigh median nerve injuries (HMNIs) are rare lesions involving the upper extremities and affect the median nerve from its origin to the emergence of the anterior interosseous nerve (AIN). Proximal reconstruction has long been considered the gold standard in treating HMNI, but thumb and index flexion and pinch and grip weakness are consistently not recovered. We report the surgical results of a patient affected by an HMNI with partial spontaneous recovery after a gunshot wound. AIN function was successfully restored in a delayed fashion by transferring the radial nerve branch to the extensor carpi radialis brevis to the AIN.

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VERGA, M., A. PERI DI CAPRIO, M. A. BOCCHIOTTI, F. BATTISTELLA, S. BRUSCHI, and M. PETROLATI. "Delayed Treatment of Persistent Radial Nerve Paralysis Associated with Fractures of the Middle Third of Humerus: Review and Evaluation of the Long-Term Results of 52 Cases." Journal of Hand Surgery (European Volume) 32, no. 5 (October 2007): 529–33. http://dx.doi.org/10.1016/j.jhse.2007.02.206.

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This study was undertaken to determine the efficacy of delayed surgical treatment in cases of persistent radial nerve paralysis after fractures of the middle third of the humerus. We have limited this study to patients who had absolutely no functional recovery of the radial nerve 3 to 4 months after middle third humeral fractures. The fractures were treated by a variety of orthopaedic methods, conservative and surgical, in other departments and hospitals. Surgical exploration of the radial nerve was carried out 3 to 4 months after primary orthopaedic treatment. The outcome of this study concurs with data in the literature in showing that delayed nerve surgery (neurolysis or nerve grafts) in the absence of functional recovery of the radial nerve after humeral fracture can be useful in achieving good functional recovery and subjectively satisfying results.

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Messroghli, Daniel R., Sarah Nordmeyer, Martin Buehrer, Sebastian Kozerke, Thore Dietrich, Elena Kaschina, Peter M. Becher, et al. "Small Animal Look-Locker Inversion Recovery (SALLI) for Simultaneous Generation of Cardiac T1 Maps and Cine and Inversion Recovery–prepared Images at High Heart Rates: Initial Experience." Radiology 261, no. 1 (October 2011): 258–65. http://dx.doi.org/10.1148/radiol.11101943.

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Takeuchi, Naohide, Shunsuke Hotokezaka, Takamitsu Okada, Hidehiko Yuge, Takao Mae, and Yukihide Iwamoto. "Recovery of Wrist Function after Volar Locking Plate Fixation for Distal Radius Fractures." Journal of Hand Surgery (Asian-Pacific Volume) 21, no. 02 (May 3, 2016): 199–206. http://dx.doi.org/10.1142/s2424835516500193.

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Background: The purpose of our present study was to examine the recovery of the postoperative wrist function, and to compare the range of motion among each direction ofthe wrist joint during the same time periods after surgery for distal radius fractures.Methods: Twenty patients treated with a volar locking plate were evaluated. The active range of motion and grip strength were assessed at four weeks, six weeks, three months, six months and one year after surgery.Results: The ratio of the range of motion in pronation and supination recovered significantly earlier than for any other directions within six months after surgery (p = 0.0205), however, the ratio of the range of motion among the six directions was not significantly different at one year after surgery (p = 0.0823). The recovery of the range of motion in flexion was 96.8% compared with the contralateral wrist at one year after surgery, and it was not significantly lower than that in extension, radial deviation or ulnar deviation (97.8%, 93.5%, 94.4%, respectively). The grip strength of dominant hand recovered from 50% after four weeks to 66% after six weeks, 83% after three months, 91% after six months and 106% at the examination performed after one year compared with the uninjured non-dominant hand. The grip strength of non-dominant hand recovered from 52% after four weeks to 59% after six weeks, 79% after three months, 84% after six months and 94% at the examination performed after one year compared with the uninjured dominant hand. The mean DASH score was 5.3.Conclusions: The range of motion in flexion can achieve similar improvement to that in the other directions by obtaining the appropriate postoperative parameters. The optimal postoperative radiographic parameters were thus identified to be essential for successfully obtaining a recovery of the wrist function for unstable distal radius fractures.

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Roganovic, Zoran, and Goran Pavlicevic. "Difference in Recovery Potential of Peripheral Nerves after Graft Repairs." Neurosurgery 59, no. 3 (September 1, 2006): 621–33. http://dx.doi.org/10.1227/01.neu.0000228869.48866.bd.

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Abstract OBJECTIVE: To our knowledge, few studies have been published regarding differences in nerve recovery potentials. In this study, sensory and motor recovery potentials were compared between different nerves. METHODS: A prospective study of a homogenous group of 393 graft repairs of the median, ulnar, radial, tibial, peroneal, femoral, and musculocutaneous nerves, with the scoring of motor and sensory recoveries. Sensory and motor recovery potentials, defined on the basis of average scores and rates of useful recovery, were compared between the different nerves, and separately for high-, intermediate-, and low-level repairs. RESULTS: Sensory recovery potential was similar for all nerves tested (P > 0.05), but motor recovery potential differed significantly. After high-level repairs, motor recovery potential was significantly better for the radial and tibial nerves (useful recovery in 66.7 and 54.5% of patients, respectively), than for the ulnar and peroneal nerves (useful recovery in 15.4 and 13.8% of patients, respectively; P < 0.05). After intermediate-level repairs, motor recovery potential was better for the musculocutaneous, radial, and femoral nerves (useful recovery in 100, 98.3, and 87.5% of repairs, respectively), than for the tibial, median and ulnar nerves (useful recovery in 63.9, 52, and 43.6% of repairs, respectively; P < 0.05). In addition, motor recovery potential was significantly the worst with peroneal nerve repairs (useful recovery in 15.2% of patients; P < 0.05). After low-level repairs, motor recovery potential was similar for all nerves (useful recovery in the range of 88.9–100% of patients and in 56.3% of peroneal nerve repairs). CONCLUSION: Sensory recovery potential is similar for the median, ulnar, and tibial nerves. The expression of motor recovery potential depends on the repair level. With low- and high-level repairs, it does not stand out in an obvious way, but it is fully expressed with intermediate-level repairs, classifying nerves into three categories with excellent, moderate, and poor recovery potential.

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Zhang, Lingnan, Hui Li, Yilin Ran, Keyi Wang, Xiaomin Zeng, and Xiaohong Liu. "Regional and Local Moisture Gradients Drive the Resistance to and Recovery from Drought of Picea crassifolia Kom. in the Qilian Mountains, Northwest China." Forests 10, no. 9 (September 19, 2019): 817. http://dx.doi.org/10.3390/f10090817.

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Increasing evidence suggests that extreme droughts cause more frequent tree growth reduction. To understand the consequences of these droughts better, this study used tree-ring cores from nine sites to investigate how moisture and altitudinal gradients affect the radial growth of Picea crassifolia Kom., a common species in the Qilian Mountains in northwest China. The total annual precipitation and mean annual temperature in the eastern region were higher than those in the western region of the Qilian Mountains. The trees in the eastern region showed stronger resistance to drought than those in the west, as they had a smaller difference in radial growth between drought disturbance and pre-drought disturbance. At the same time, the trees in the east showed weaker ability to recover from drought, as they had a subtle difference in radial growth between post-drought disturbance and drought disturbance. Furthermore, the trees in the east also showed weaker relative resilience to drought, as they had a small difference in radial growth between post-drought and drought disturbance weighted by growth in pre-drought disturbance. For trees below 3000 m a.s.l., trees with high resistance capacity usually had low recovery capacity and low relative resilience capacity. Trees at higher altitudes also showed stronger resistance to drought and weaker ability to recover from drought after a drought event than those at lower altitudes in the middle of the Qilian Mountains. Trees at lower altitudes in the middle of the Qilian Mountains had more difficulties recovering from more severe and longer drought events. In the context of global warming, trees in the western region and at lower altitudes should be given special attention and protection in forest management to enhance their resistance to extreme droughts.

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Huber, Armin M., Stefan O. Schoenberg, Carmel Hayes, Benedikt Spannagl, Markus G. Engelmann, Wolfgang M. Franz, and Maximilian F. Reiser. "Phase-Sensitive Inversion-Recovery MR Imaging in the Detection of Myocardial Infarction." Radiology 237, no. 3 (December 2005): 854–60. http://dx.doi.org/10.1148/radiol.2373041483.

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35

Bevilacqua, Eddie, Ralph D. Nyland, Tori Smith Namestnik, and Douglas C. Allen. "Growth of Sugar Maple (Acer saccharum Marsh.) after Ice Storm Damage and Forest Tent Caterpillar (Malacosoma disstria Hubner) Defoliation." Forests 12, no. 5 (May 14, 2021): 620. http://dx.doi.org/10.3390/f12050620.

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The January 1998 ice storm broke off tree crowns across a wide geographic area in northeastern North America, and forest tent caterpillar (Malacosoma disstria Hubner) defoliated some of the same stands in 2004–2007. We assessed the post-event growth responses of upper canopy sugar maples (Acersaccharum Marsh.) in previously thinned and recently rehabilitated even-aged northern hardwood stands in New York State, USA. Cores from ice-storm-damaged trees showed an initial radial growth reduction, a recovery after one year, and an increase to or above pre-storm levels after three years. A later forest tent caterpillar defoliation in the same stand caused a second reduction of growth, and another recovery after one year. We observed greater post-storm radial growth on trees released by a post-ice storm rehabilitation treatment than in the untreated control, with growth exceeding pre-storm rates. Cores from another site thinned 38 years earlier and impacted only by the forest tent caterpillar showed a more moderate growth reduction, and a prompt but smaller post-defoliation growth response than among trees affected by both the ice storm and defoliation. Findings reflect the potential for growth of upper canopy sugar maple trees to recover after a single or two closely occurring crown disturbances, and provide guidance to managers who must decide about removing or continuing to manage stands after similar kinds of ice storm damage or defoliation.

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36

Wu, Zichao, Ji Zhao, Wenzheng Wu, Peipei Wang, Bofan Wang, Guiwei Li, and Shuo Zhang. "Radial Compressive Property and the Proof-of-Concept Study for Realizing Self-expansion of 3D Printing Polylactic Acid Vascular Stents with Negative Poisson’s Ratio Structure." Materials 11, no. 8 (August 6, 2018): 1357. http://dx.doi.org/10.3390/ma11081357.

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Biodegradable stents offer the potential to reduce the in-stent restenosis by providing support long enough for the vessel to heal. The polylactic acid (PLA) vascular stents with negative Poisson’s ratio (NPR) structure were manufactured by fused deposition modeling (FDM) 3D printing in this study. The effects of stent diameter, wall thickness and geometric parameters of arrowhead NPR structure on radial compressive property of 3D-printed PLA vascular stent were studied. The results showed that the decrease of stent diameter, the increase of wall thickness and the increase of the surface coverage could enhance the radial force (per unit length) of PLA stent. The radial and longitudinal size of PLA stent with NPR structure decreased simultaneously when the stent was crimped under deformation temperature. The PLA stent could expand in both radial and longitudinal direction under recovery temperature. When the deformation temperature and recovery temperature were both 65 °C, the diameter recovery ratio of stent was more than 95% and the maximum could reach 98%. The length recovery ratio was above 97%. This indicated the feasibility of utilizing the shape memory effect (SME) of PLA to realize the expansion of 3D-printed PLA vascular stent under temperature excitation.

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37

Abe, Yukio, Kouzou Sunago, Takashi Itoh, Eiichi Shiigi, and Hideki Morita. "Functional Recovery after Surgery for Unstable Distal Radial Fractures." Orthopedics & Traumatology 47, no. 3 (1998): 825–28. http://dx.doi.org/10.5035/nishiseisai.47.825.

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38

Ilyas, Asif M., John J. Mangan, and Jack Graham. "Radial Nerve Palsy Recovery With Fractures of the Humerus." Journal of the American Academy of Orthopaedic Surgeons 28, no. 6 (March 2020): e263-e269. http://dx.doi.org/10.5435/jaaos-d-18-00142.

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Krause, Cornelia, and Hubert Morin. "Changes in radial increment in stems and roots of balsam fir [Abies balsamea (L.) Mill.] after defoliation spruce budworm." Forestry Chronicle 71, no. 6 (December 1, 1995): 747–54. http://dx.doi.org/10.5558/tfc71747-6.

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Radial increment along the stems and the root systems of 20 balsam fir (Abies balsamea Mill.) was analysed as an indicator of resource allocation after a spruce budworm outbreak. The trees were located in a natural forest, 130 km north of Lake Saint Jean (Québec) in the boreal forest zone. The dynamics of the forest were determined by fire and insect outbreaks. The 20 analysed firs showed clear signs of the last two spruce budworm outbreaks. Tree-ring width was reduced one year earlier in the crown region than at the stem base, and was more variable in the root system. Many tree-rings were missing at the stem base section and especially in the root system (2099 missing rings). Recovery started with a time delay of one year from the upper part of the crown and continued downwards in the stem. The roots and the crown recovered within a longer period. Key words: Abies balsamea, Choristoneura fumiferana, dendroecology, radial increment, root, spruce budworm

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Varga-Szemes, Akos, Rob J. van der Geest, Bruce S. Spottiswoode, Pal Suranyi, Balazs Ruzsics, Carlo N. De Cecco, Giuseppe Muscogiuri, et al. "Myocardial Late Gadolinium Enhancement: Accuracy of T1 Mapping–based Synthetic Inversion-Recovery Imaging." Radiology 278, no. 2 (February 2016): 374–82. http://dx.doi.org/10.1148/radiol.2015150162.

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41

Koval, Iryna, and Serhiy Sydorenko. "The influence of surface fire on radial and height growth of Pinus sylvestris L. in forest-steppe in Ukraine." Folia Forestalia Polonica 61, no. 2 (July 1, 2019): 123–34. http://dx.doi.org/10.2478/ffp-2019-0012.

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AbstractThe article presents the results of the research on the peculiarity of response ofPinus sylvestrisL. growth in height and diameter in young pine forest stand of the Left-Bank forest-steppe of Ukraine under the influence of surface fire that happened in May 2011. Forestry taxation, comparative ecology, standard dendrochronological methods were used. Response of trees was different for the height growth and the radial increment in the year of fire (2011). The radial growth got depressed in the year of fire; at the same time, the height of trees showed positive trend of growth against the background of favourable weather conditions. The growth in height was more ductile and completed its recovery to a particular level in 2014, unlike the radial growth, which recovered only in 2016. The relationships between radial growth on one side and stand sanitary state and height of bark char on the other were approximated by quadratic and cubic regression equations. Dynamics of pine growth depends on climatic factors also. Percentage of the late wood should be used to assess the condition of stands after fire. Research of post-pyrogenic development of forest ecosystems will allow more effective planning of forest management measures, and also allow the adjustment of the monitoring duration for pine forest stands damaged by fires.

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Mackinnon, Susan E., Brandon Roque, and Thomas H. Tung. "Median to radial nerve transfer for treatment of radial nerve palsy." Journal of Neurosurgery 107, no. 3 (September 2007): 666–71. http://dx.doi.org/10.3171/jns-07/09/0666.

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✓The purpose of this study is to report a surgical technique of nerve transfer to restore radial nerve function after a complete palsy due to a proximal injury to the radial nerve. The authors report the case of a patient who underwent direct nerve transfer of redundant or expendable motor branches of the median nerve in the proximal forearm to the extensor carpi radialis brevis and the posterior interosseous branches of the radial nerve. Assessment included degree of recovery of wrist and finger extension, and median nerve function including pinch and grip strength. Clinical evidence of reinnervation was noted at 6 months postoperatively. The follow-up period was 18 months. Recovery of finger and wrist extension was almost complete with Grade 4/5 strength. Pinch and grip strength were improved postoperatively. No motor or sensory deficits related to the median nerve were noted, and the patient is very satisfied with her degree of functional restoration. Transfer of redundant synergistic motor branches of the median nerve can successfully reinnervate the finger and wrist extensor muscles to restore radial nerve function. This median to radial nerve transfer offers an alternative to nerve repair, graft, or tendon transfer for the treatment of radial nerve palsy.

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Ostermann, Roman C., Nikolaus W. Lang, Julian Joestl, Leo Pauzenberger, Thomas M. Tiefenboeck, and Patrick Platzer. "Fractures of the Humeral Shaft with Primary Radial Nerve Palsy: Do Injury Mechanism, Fracture Type, or Treatment Influence Nerve Recovery?" Journal of Clinical Medicine 8, no. 11 (November 14, 2019): 1969. http://dx.doi.org/10.3390/jcm8111969.

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Adult humeral shaft fractures are associated with primary radial nerve palsy in up to 18% of cases. The purpose of this study was to assess the influence of injury mechanism, fracture type, and treatment on nerve recovery in patients with humeral shaft fractures and primary nerve palsy. Data of fifty patients (age—43.5 ± 21.3; female: male—1:1.8) with humeral shaft fractures and concomitant grade I–II primary radial nerve palsy, who underwent either open reduction and internal fixation (ORIF) or intramedullary nailing at an academic level I trauma center between 1994 and 2013, were evaluated. Factors potentially influencing the time to onset of recovery or full nerve recovery (injury mechanism, fracture type, fracture location and treatment) were analyzed in detail. Thirty patients were treated with ORIF and twenty patients with closed unreamed intramedullary nailing of the humeral shaft, respectively. The mean time to onset of recovery was 10.5 ± 3.4 weeks (2–17 weeks). Twenty-six (52%) patients reported significant clinical improvement within the first 12 weeks. Mean time to full recovery was 26.8 ± 8.9 weeks (4–52 weeks). Twenty-five (50%) patients regained full manual strength within the first six months following the injury. Forty-nine (98%) patients regained full manual strength within the first 52 weeks. Trauma mechanism, fracture type, fracture location, and treatment modality did not influence the time to onset of nerve recovery or time to full recovery following humeral shaft fractures with grade I–II primary radial nerve palsy.

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Smith, Michael W., and Charles T. Rohla. "Pecan Orchard Damage and Recovery from Ice Storms." HortTechnology 19, no. 1 (January 2009): 83–90. http://dx.doi.org/10.21273/hortsci.19.1.83.

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Typical damage, cleanup, and recovery from four ice storms beginning in Dec. 2000, with the latest in Dec. 2007, are reported for pecan (Carya illinoinensis). Damage levels were amplified as radial ice accretion increased. Cultivar affected the amount of damage incurred. Trees less than 15 ft tall typically had the least damage. Trees 15 to 30 ft tall incurred as much or more damage than larger trees and cleanup costs were greater. Production potential was directly related to canopy loss during the first growing season. The time to recover full production potential varied with the severity of canopy loss. Cleanup costs depended upon the amount of canopy damage incurred, tree spacing, tree size, and the amount of pruning needed to remove hanging and damaged limbs from the tree.

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Kline, David G., and Daniel H. Kim. "Axillary nerve repair in 99 patients with 101 stretch injuries." Journal of Neurosurgery 99, no. 4 (October 2003): 630–36. http://dx.doi.org/10.3171/jns.2003.99.4.0630.

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Object. The purpose of this paper was to analyze outcomes in patients at the Louisiana State University Health Sciences Center (LSUHSC) who presented with contusion—stretch injuries to the axillary nerve. These injuries resulted from shoulder injury either with or without fracture/dislocation. Although recovery of deltoid function can occur spontaneously, this was not always the case. Methods. Severe deficits persisting for several months led the patients to undergo surgery. Operative categories included isolated axillary palsy (56 procedures), combined axillary and suprascapular palsies (11 procedures), axillary and radial palsies (14 procedures), and axillary palsy with another deficit, usually infraclavicular plexus loss (20 procedures). Deltoid function was evaluated pre- and postoperatively by applying the LSUHSC grading system. An anterior infraclavicular approach was usually followed during surgery, but in three patients an additional posterior approach was used. Axillary lesions usually began in the proximal portion of the posterior cord. Although several patients had distraction of the nerve, lesions in continuity were found in more than 90% of cases. Intraoperative nerve action potential (NAP) recordings were performed to determine the need for resection. Most repairs were made using grafts, although in three patients with relatively focal lesions suture was used. When an NAP was recorded across the lesion and neurolysis was performed, recovery was judged to be a mean Grade 4 according to the LSUHSC in 30 cases. Recovery following suture repairs was a mean Grade 3.8, whereas recovery after 66 graft repairs was a mean Grade 3.7. In cases in which suprascapular palsies were associated with axillary injuries, the former recovered but the latter did not necessarily do so without surgery. If the radial nerve was also injured, recovery of the triceps and brachioradialis muscles and wrist extension was usually obtained, but it was far more difficult to reverse the loss of finger and thumb extension. Although few in number, complications did occur and they are important. Conclusions. Operative exploration of axillary contusion—stretch lesions is worthwhile in carefully selected cases. If indicated by inspection and intraoperative electrical studies, nerve repair can lead to useful function.

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Sair, Haris I., Yousef Hannawi, Shanshan Li, Joshua Kornbluth, Athena Demertzi, Carol Di Perri, Russell Chabanne, et al. "Early Functional Connectome Integrity and 1-Year Recovery in Comatose Survivors of Cardiac Arrest." Radiology 287, no. 1 (April 2018): 247–55. http://dx.doi.org/10.1148/radiol.2017162161.

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Geurts, Jeroen J. G., Petra J. W. Pouwels, Bernard M. J. Uitdehaag, Chris H. Polman, Frederik Barkhof, and Jonas A. Castelijns. "Intracortical Lesions in Multiple Sclerosis: Improved Detection with 3D Double Inversion-Recovery MR Imaging." Radiology 236, no. 1 (July 2005): 254–60. http://dx.doi.org/10.1148/radiol.2361040450.

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Devale, Maksud Mubarak, Gaurav Jatin Kadakia, Vicky Ghewarchand Jain, and Rohit Prakash Munot. "Direct electrical injury to brachial plexus." Indian Journal of Plastic Surgery 50, no. 02 (May 2017): 217–19. http://dx.doi.org/10.4103/ijps.ijps_177_16.

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ABSTRACTElectrical current can cause neurological damage directly or by conversion to thermal energy. However, electrical injury causing isolated brachial plexus injury without cutaneous burns is extremely rare. We present a case of a 17-year-old boy who sustained accidental electrical injury to left upper extremity with no associated entry or exit wounds. Complete motor and sensory loss in upper limb were noted immediately after injury. Subsequently, the patient showed partial recovery in muscles around the shoulder and in ulnar nerve distribution at 6 months. However, there was no improvement in muscles supplied by musculocutaneous, median and radial nerves. On exploration at 6 months after trauma, injury to the infraclavicular plexus was identified. Reconstruction of musculocutaneous, median and radial nerves by means of sural nerve cable grafts was performed. The patient has shown excellent recovery in musculocutaneous nerve function with acceptable recovery of radial nerve function at 1-year post-injury.

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Busse, C. A., and R. I. Loehrke. "Subsonic Pressure Recovery in Cylindrical Condensers." Journal of Heat Transfer 111, no. 2 (May 1, 1989): 533–37. http://dx.doi.org/10.1115/1.3250710.

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A method is presented for predicting laminar, subsonic flow in axisymmetric cylindrical heat pipe condensers. The method involves the use of the boundary layer approximation and a noncontinuous power series to describe the velocity profile under conditions including strong axial flow reversal. A comparison between laminar predictions and measurements indicates that transition to turbulent flow in the condenser begins when the absolute value of the radial Reynolds number exceeds 6. The condenser pressure recovery in the turbulent regime can be calculated from the momentum flow at the condenser inlet and an empirical wall-friction parameter.

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Li, Gui Fa, Shi Qiang Lu, Ke Lu Wang, Jun Wei Liu, and Er Min Wang. "Influence of Predeformation Temperature on Recovery Performance of Ni₄₇Ti₄₄Nb₉ Alloy Φ16mm Pipe Joint." Advanced Materials Research 904 (March 2014): 41–45. http://dx.doi.org/10.4028/www.scientific.net/amr.904.41.

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Using the method of expanding diameter in low temperature and water bath heating, this paper studied the effect of pre-deformation temperature on shape memory recovery characteristics of Ni47Ti44Nb9alloy Φ16 mm pipe joint. The results showed that the transformation hysteresis and the radial recoverable strain were relative stable along with the addition of pre-deformation temperature, which were 122°C±4°C and 7.1%±0.3% respectively. Moreover the radial recovery rate of inner diameter declined smoothly with the addition of pre-deformation temperature. Systems considering the three parameters of transformation hysteresis, recoverable strain and strain recovery rate, it seemed the excellent predeformed temperature for Ni47Ti44Nb9alloy Φ16 mm pipe joint was in-65~-70°C.

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Journal articles on the topic 'Rading recovery'

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