Artykuły w czasopismach na temat „Recovery”
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Glaister, Stephen Murray. "Recovery Recovered". Journal of Philosophical Logic 29, nr 2 (kwiecień 2000): 171–206. http://dx.doi.org/10.1023/a:1004781319263.
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Alzaghoul, Esra F., Hussam N. Fakhouri i Fawaz A. Alzaghoul. "Automatic Recovery of Database Structure (ARDS)". Modern Applied Science 12, nr 10 (27.09.2018): 71. http://dx.doi.org/10.5539/mas.v12n10p71.
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One of the evolutions of information technology which is a very fascinating feature is the application of the auto recovery. This feature enables an external system to automatically diagnose other systems, detects the error that causes the failure, then recovers and reconfigures the system. The concept of software and web auto recovery is widely used in much software such as windows operating system which restores and recovers tools. Since the aim is to fast recover the application and keep it running and available as optimal as possible then it will be suitable to apply this capability to the database applications to fast recover from any unexpected change that may happen. This paper proposes an auto-recovery system that monitors, diagnoses, checks and heals database applications automatically and immediately with unnoticeable recovery time. The aim is to recover and to redo the changes that happened to the database by internal unauthorized user or external intrusion. To test the practical applicability of the proposed methodology, an application has been developed to demonstrate the methodology and apply it for real time database applications. The results of experiments performed on different scenarios demonstrated the ability of the proposed framework to recover database applications.
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White, William L. "Recover! and Recovery Now". Alcoholism Treatment Quarterly 33, nr 1 (2.01.2015): 132–37. http://dx.doi.org/10.1080/07347324.2015.983352.
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Click, Natalie, Theresa Chen, Randall Adcock i Meng Tao. "New Chemistries for Silver and Lead Recovery from End-of-Life Silicon Solar Modules". ECS Meeting Abstracts MA2023-02, nr 44 (22.12.2023): 2188. http://dx.doi.org/10.1149/ma2023-02442188mtgabs.
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Two metals contained in silicon solar modules belong to the must-recover category: silver and lead. Silver is the main financial incentive for recyclers generating ~$5/module, while lead is toxic creating a potential environmental hazard when landfilled. The literature on silver recovery often employs nitric acid for leaching followed by precipitation, re-dissolution, and electrowinning to recover metallic silver, while lead recovery has been rarely attempted for silicon module recycling. In this talk we will report silver recovery with hydrofluoric acid. It involves two steps, leaching and electrowinning to recover over 95% of the silver as a pure metal. A two-step process of leaching and electrowinning for lead recovery with acetic acid will also be reported. A recovery rate of over 99% has been confirmed, with the lead content in the post-electrowinning leachate below 10 ppm and the recovered lead being a pure metal. However, the recovered lead tends to react with ambient and acetic acid to form surface oxide and/or acetate due to its dendritic morphology. A dense lead deposit is preferred.
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Lee, Koo, Sung Bae Cho, Junsin Yi i Hyo Sik Chang. "Simplified Recovery Process for Resistive Solder Bond (RSB) Hotspots Caused by Poor Soldering of Crystalline Silicon Photovoltaic Modules Using Resin". Energies 15, nr 13 (24.06.2022): 4623. http://dx.doi.org/10.3390/en15134623.
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When the thickness of the solar cell wafer and the amount of Ag to be used decreases, it is the best method to recover the power of the module after use at a minimum cost and reuse the module itself. Economic recovery technology can be applied to the power degradation, caused by the resistive solder bond (RSB) hotspot by poor soldering, because the recovery process can be simplified compared to the power loss that is often greater than 30%. This study demonstrated a quick recovery of the RSB hotspot with on-site recovery technology applied with resin and verified the performance and long-term reliability of on-site recovery technology, compared to the factory recovery method, where the back sheet is removed and laminated to recover the module. Both the factory and field recovery methods confirmed recovery results closer to the initial rated power output of the samples. Each sample was degraded by the RSB hotspot to ~62–65% of the initial power output, and the recovery process successfully recovered it to ~96–99%. In on-site recovery, verification of the possible EVA solvothermal swelling, which is the effect of organic solvents contained in the resin on EVA, is essential for verifying the long-term reliability of the recovered module. In this study, the power degradations of the on-site recovered samples after a TC 200 cycle test are −2.14% and −0.95%, respectively, which are within the certification test standard of the new manufacturing module. Existing factory recovery costs not only in the recovery process, but also in a total of 22 stages, such as the transfer of the target module. The largest advantage is that the on-site recovery process can be restarted in the field after only eight stages.
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Ion, Ion V., Antoaneta Ene i Gabriel Mocanu. "Boiler blowdown recovery". Annals of the ”Dunarea de Jos” University of Galati Fascicle II Mathematics Physics Theoretical Mechanics 44, nr 2 (29.12.2021): 98–102. http://dx.doi.org/10.35219/ann-ugal-math-phys-mec.2021.2.03.
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One way to reduce the heat loss of the steam boiler is to reduce the blowdown rate and recover the heat from the purged water. Purging the boiler, although necessary, represents a loss of treated water and a loss of heat because the purged water is water brought to saturation. Blowdown recovery must be done according to the available users/consumers. The paper analyses the recovery of blowdown of a steam boiler of 420 t/h capacity by using a flash separator and a makeup water preheater. The flash steam is used for the feed water deaeration. The heat recovered from the blowdown can reach 97%, and the recovered water can reach 43%.
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Corbella, S., i D. D. Stretch. "Shoreline recovery from storms on the east coast of Southern Africa". Natural Hazards and Earth System Sciences 12, nr 1 (2.01.2012): 11–22. http://dx.doi.org/10.5194/nhess-12-11-2012.
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Abstract. Episodic extreme waves due to sea storms can cause severe coastal erosion. The recovery times of such events are important for the analysis of risk and coastal vulnerability. The recovery period of a storm damaged coastline represents a time when the coastline is most vulnerable and nearby infrastructure is at the greatest risk. We propose that identification of the beach recovery period can be used as a coastal management tool when determining beach usage. As a case study, we analyse 37 yr of beach profile data on the east coast of South Africa. Considering beach length and cross-sectional area, we establish a global recovery period and rate and identify the physical characteristics of the coastlines that either accelerate or retard recovery. The beaches in the case study were found to take an average of two years to recover at a rate of approximately 90 m3 m−1 yr−1. Beach profiles with vegetated dunes recovered faster than urbanized beaches. Perpendicular beach structures have both positive and negative effects on beach recovery. Coastlines with rock outcrops in the surf zone tend to recover slowly and long-term sediment loss was identified in cases where storm damaged beaches have not recovered to pre-erosion levels.
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Honda, Yuto, Toshifumi Kawaguchi i Kenji Inoue. "Overturn Recovery of Working Six-Legged Robots on a Flat Slope with Preparatory Body Rotation". Journal of Robotics and Mechatronics 36, nr 4 (20.08.2024): 940–49. http://dx.doi.org/10.20965/jrm.2024.p0940.
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A method for working six-legged robots to recover from an overturned state on a flat slope is proposed. The robot rotates around its roll axis, which is parallel to the slope, from an overturned state to a normal state. During this process, the robot supports its body using six legs and maintains as much static balance as possible. This enables a stable overturn recovery. Before recovery, the robot may rotate in the overturned state around its yaw axis, which is vertical to the slope, until the recovery direction becomes lateral to the slope. This reduces the risk of tumbling down the slope. Consequently, the robot can recover from the overturned state on the flat slope of 40° when it recovers almost in the lateral direction.
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Zunnera Rashid Chaudhry, Erum Rashid, Sana Rasheed, Hina Aslam, Sabeen Shakir i Faiza Rasheed. "Correlation of hemoglobin with recovery time in COVID 19 infected patients." Professional Medical Journal 28, nr 12 (30.11.2021): 1692–95. http://dx.doi.org/10.29309/tpmj/2021.28.12.6694.
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Objectives: To study the correlation between recovery time and hemoglobin level in COVID-19 infected patients. Study Design: Observational study. Setting: Rawal Institute of Health Sciences Islamabad, Pakistan Institute of Medical Sciences Islamabad. Period: February 2021 to June 2021. Material & Methods: Data was analyzed using SPSS version 27.Mann Whitney U test was used to compare the duration of recovery among the groups and spearman's correlation was applied for correlating the duration of recovery with the Hb levels of COVID-19 patients. Result: Group 1 patients recovered within 14 days and group 2 patients recovered after 14 days. COVID-19 infected Patients with low hemoglobin level took more than 14-20 days to recover from disease and those with high hemoglobin recovered within 8-14 days. Conclusion. Recovery from disease was prolonged in corona virus infected patients with less hemoglobin as compared to patients with high levels of hemoglobin levels.
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Ambrose, Nicoline Grinager, Nancy J. Cox i Ehud Yairi. "The Genetic Basis of Persistence and Recovery in Stuttering". Journal of Speech, Language, and Hearing Research 40, nr 3 (czerwiec 1997): 567–80. http://dx.doi.org/10.1044/jslhr.4003.567.
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Although past research has provided evidence of a genetic component to the transmission of susceptibility to stuttering, the relationship between the genetic component to stuttering and persistence and recovery in the disorder has remained unclear. In an attempt to characterize this relationship, the immediate and extended families of 66 stuttering children were investigated to determine frequencies of cases of persistent and recovered stuttering. Pedigree analysis and segregation analysis were used to examine patterns of transmission. The following questions were investigated: 1. Is there a sex effect in recovery from stuttering? Here, we sought to test the hypothesis that females are more likely to recover than males, leading to the change in sex ratio from approximately 2:1 males to females close to onset of the disorder, to 4 or 5:1 in adulthood. 2. Is persistence/recovery in stuttering transmitted in families? If recovery/persistence appears to be transmitted, (a) are recovered and persistent stuttering independent disorders?; (b) is recovery a genetically milder form of persistent stuttering?; or (c) is persistence/recovery transmitted independent of the primary susceptibility to stuttering? Results indicated sharply different sex ratios of persistent versus recovered stutterers in that recovery among females is more frequent than among males. It was found that recovery or persistence is indeed transmitted, and further, that recovery does not appear to be a genetically milder form of stuttering, nor do the two types of stuttering appear to be genetically independent disorders. Data are most consistent with the hypothesis that persistent and recovered stuttering possess a common genetic etiology, and that persistence is, in part, due to additional genetic factors. Segregation analyses supported these conclusions and provided statistical evidence for both a single major locus and polygenic component for persistent and recovered stuttering.
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Zhang, Bo. "A Recovery Method of Data Lost in Network Communication". Journal of Advanced Computational Intelligence and Intelligent Informatics 23, nr 2 (20.03.2019): 248–52. http://dx.doi.org/10.20965/jaciii.2019.p0248.
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At present, ScanDisk is used to recover the data lost in network communication. But this method is limited in scope, and once the lost data is covered, it’s difficult or impossible to recover it, which results in low recovery degree. Accordingly, a recovery method for lost data in network communication based on RAID6 is proposed. Firstly, according to the mechanism of data loss in network communication, the missing data is divided into three categories: random loss, completely random loss and nonrandom loss, and then according to the results of classification, the recovery problem of the data loss in network communication is converted into the problem of matrix completion, finally, a low-rank decomposition model is proposed, according to the low rank characteristics of the matrix, the lost data in the matrix is recovered, thus the recovery of the lost data in network communication is finished. Experimental results show that the proposed method can easily recover the lost data in network communication with a simple operation, low computing complexity and strong applicability, and can be used as a universal recovery method for data lost in network communication.
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Bridle, T. R., i D. Pritchard. "Energy and nutrient recovery from sewage sludge via pyrolysis". Water Science and Technology 50, nr 9 (1.11.2004): 169–75. http://dx.doi.org/10.2166/wst.2004.0562.
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Energy recovery and nutrient reuse from sewage sludge has traditionally been achieved via anaerobic digestion/power generation with land application of the biosolids. By contrast, thermal processes such as pyrolysis have typically been used only for energy recovery. One such technology has demonstrated at commercial scale that all of the energy in sludge can be beneficially recovered and reused. No attempt was however made to recover and reuse sludge nutrients. There are many potential benefits of using pyrolysis for both energy and nutrient recovery. Firstly, unlike digestion, the principal energy product is oil, which can readily be stored and used when required, ensuring that energy recovery is maximised. Secondly is that the sludge nutrients are recovered in the pyrolysis char. Laboratory soil incubation studies using char from the Subiaco demonstration plant were conducted over an eight-week period to confirm nutrient availability. Results from this study showed that the phosphorus in the char is plant available although the nitrogen was insoluble. Based on these results it appears that there is potential to use pyrolysis as an effective means to recover and reuse both the energy and the very valuable phosphorus present in sewage sludges.
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Ku, Elaine, Raymond K. Hsu, Kirsten L. Johansen, Charles E. McCulloch, Mark Mitsnefes, Barbara A. Grimes i Kathleen D. Liu. "Recovery of kidney function after dialysis initiation in children and adults in the US: A retrospective study of United States Renal Data System data". PLOS Medicine 18, nr 2 (19.02.2021): e1003546. http://dx.doi.org/10.1371/journal.pmed.1003546.
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Background Little is known about factors associated with recovery of kidney function—and return to dialysis independence—or temporal trends in recovery after starting outpatient dialysis in the United States. Understanding the characteristics of individuals who may have the potential to recover kidney function may promote better recognition of such events. The goal of this study was to determine factors associated with recovery of kidney function in children compared with adults starting dialysis in the US. Methods and findings We determined factors associated with recovery of kidney function—defined as survival and discontinuation of dialysis for ≥90-day period—in children versus adults who started maintenance dialysis between 1996 and 2015 according to the United States Renal Data System (USRDS) followed through 2016 in a retrospective cohort study. We also examined temporal trends in recovery rates over the last 2 decades in this cohort. Among 1,968,253 individuals included for study, the mean age was 62.6 ± 15.8 years, and 44% were female. Overall, 4% of adults (83,302/1,953,881) and 4% of children (547/14,372) starting dialysis in the outpatient setting recovered kidney function within 1 year. Among those who recovered, the median time to recovery was 73 days (interquartile range [IQR] 43–131) in adults and 100 days (IQR 56–189) in children. Accounting for the competing risk of death, children were less likely to recover kidney function compared with adults (sub-hazard ratio [sub-HR] 0.81; 95% CI 0.74–0.89, p-value <0.001; point estimates <1 indicating increased risk for a negative outcome). Non-Hispanic black (NHB) adults were less likely to recover compared with non-Hispanic white (NHW) adults, but these racial differences were not observed in children. Of note, a steady increase in the incidence of recovery of kidney function was noted initially in adults and children between 1996 and 2010, but this trend declined thereafter. The diagnoses associated with the highest recovery rates of recovery were acute tubular necrosis (ATN) and acute interstitial nephritis (AIN) in both adults and children, where 25%–40% of patients recovered kidney function depending on the calendar year of dialysis initiation. Limitations to our study include the potential for residual confounding to be present given the observational nature of our data. Conclusions In this study, we observed that discontinuation of outpatient dialysis due to recovery occurred in 4% of patients with end-stage kidney disease (ESKD) and was more common among those with ATN or AIN as the cause of their kidney disease. While recovery rates rose initially, they declined starting in 2010. Additional studies are needed to understand how to best recognize and promote recovery in patients whose potential to discontinue dialysis is high in the outpatient setting.
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Pemmadi, Venkata Rao, JInal Patel i Ashish Nagar. "Enhanced Oil Recovery". International Journal for Research in Applied Science and Engineering Technology 11, nr 2 (28.02.2023): 834–41. http://dx.doi.org/10.22214/ijraset.2023.48875.
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Abstract: Enhanced oil recovery procedures, which are part of improved oil recovery, are used to recover the leftover oil include Steam injection, Polymer flooding, Gas injection and Water injection. Only a small percentage of the total hydrocarbons in the reservoir can be recovered using standard oil recovery technologies. Even if normal recovery procedures are implemented, almost 2 trillion barrels of conventional oil and 5 trillion barrels of heavy oil will remain in reservoirs around the world. Many factors, both economic and technological, influence the strategy chosen and the projected recovery. The study evaluates the EOR approaches that are currently in use in the field. The current EOR technologies are put into context, with the technical reasons for their failure highlighted. Recovering additional oil is difficult and expensive, and it has only been done successfully in a few cases under strict conditions. Despite this, EOR will continue to play a significant role in oil production due to rising energy demand and constrained supply. It is estimated that a significant amount of research is required to develop new technologies for recovering almost two-thirds of the oil that remains unrecoverable in the reservoir. New methods of enhanced oil recovery improves the efficiency of existing processes and reduce demand for new reserves in the longer term. This paper represents the new technologies evolved in the petroleum industry for Enhanced oil recovery.
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Hu, Ting, Quan Jun Liu, Rong Dong Deng i Feng Hong Ye. "Experimental Research of Tin Ore from Kazakhstan". Advanced Materials Research 581-582 (październik 2012): 949–53. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.949.
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The paper recovered the tin from a refractory tin ore in Kazakhstan. The grade of tin in raw ore is 1.19%. Through technological mineralogy study, we found the tin was mainly in the forms of cassiterite and stannite. Considering the gravity process would make the stannite lost in tailings because of its small specific gravity, we explored the flotation to recover the tin. In fact, the grade and recovery of tin were bad by collectors contrast test. Finally, we adopted gravity flowsheet to recover cassiterite. The recovery of tin is not high because the tin in the form of stannite lost in tailings. As a result, the tin concentrate with a grade of 21.56% and the recovery of 52.90% were obtained.
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Shetty, Teena, Joseph Nguyen, Taylor Cogsil, Apostolos John Tsiouris, Sumit Niogi, Aashka Dalal, Kristin Halvorsen i in. "Recovery time, risk factors, and volumetric analysis in acute mTBI". Neurology 91, nr 23 Supplement 1 (4.12.2018): S17.2—S17. http://dx.doi.org/10.1212/01.wnl.0000550694.07808.1a.
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ObjectiveThis study investigated the influence of demographic factors, the course of recovery, and the utility of investigational MR sequences (specifically volumetry) in mild traumatic brain injury (mTBI) patients.BackgroundMost literature suggests that the majority of mTBI patients achieve recovery within 1 month of injury, or sooner. This may be affected by younger age, female sex, concussion history, learning disability, psychiatric history, or migraines. The role of volumetric analysis in mTBI requires further investigation.MethodsOne hundred eleven patients (15–50 years old) enrolled in the study within 10 days of head injury. Patients completed a maximum of 4 encounters over 3 months, undergoing volumetric structural imaging at each visit. Patients were contacted to determine recovery date.ResultsRecovery date was obtained in 73 patients at HSS. The median days to recovery was 44 days (IQR: 23–88 days). 33% of this population was recovered in 30 days, 63% in 60 days, and >75% in 90 days. Of the subjects who were not recovered by 90 days, the right thalamus volume trended towards a negative correlation with SSS at that time point. Initial symptom severity score (SSS) was significantly correlated with increased days to recovery (p = 0.382, p = 0.001). Average days to recover was longer in patients with diagnosed depression, anxiety, or other psychiatric disorder (121 vs 70 days, p = 0.037). No significant differences in days to recovery were found between age groups, sex, learning disorder, previous concussions, or history of migraines.ConclusionAverage time to recover from mTBI may be longer than previously reported. Acute SSS may be a useful indicator in determining recovery time. Of previously reported risk factors, personal psychiatric history may have the greatest effect on recovery time. Despite being interesting, the volumetric correlations did not survive multiple comparison corrections and may not be the most sensitive variable for mTBI imaging.
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Thomas, Luke, i Stephen R. Palumbi. "The genomics of recovery from coral bleaching". Proceedings of the Royal Society B: Biological Sciences 284, nr 1865 (25.10.2017): 20171790. http://dx.doi.org/10.1098/rspb.2017.1790.
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Ecological damage from periodic environmental extremes is often repaired in resilient ecosystems, but the rate of return to a non-damaged state is critical. Measures of recovery of communities include biomass, productivity and diversity, while measures of recovery of individuals tend to focus on physiological conditions and the return to normal metabolic functioning. Transcriptomics offers a window into the entire physiology of the organism under stress and can represent a holistic view of organismal recovery. In this study, we track the recovery of seven colonies of Acropora hyacinthus following a natural bleaching event. We identified a large environmental stress response in the field that involved approximately 20% of the host transcriptome. The transcriptome remained largely perturbed for at least six months after temperatures had cooled and four months after symbiont populations had recovered. Moreover, a small set of genes did not recover to previous expression levels even 12 months after the event, about the time that normal growth rates resumed. This study is among the first to incorporate transcriptomics into a longitudinal dataset of recovery from environmental stress. The data demonstrate large and lasting effects on coral physiology long after environmental conditions return to normal and symbiont populations recover.
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le Feber, Joost, Niels Erkamp, Michel J. A. M. van Putten i Jeannette Hofmeijer. "Loss and recovery of functional connectivity in cultured cortical networks exposed to hypoxia". Journal of Neurophysiology 118, nr 1 (1.07.2017): 394–403. http://dx.doi.org/10.1152/jn.00098.2017.
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In the core of a brain infarct, loss of neuronal function is followed by neuronal death within minutes. In an area surrounding the core (penumbra), some perfusion remains. Here, neurons initially remain structurally intact, but massive synaptic failure strongly reduces neural activity. Activity in the penumbra may eventually recover or further deteriorate toward massive cell death. Besides activity recovery, return of brain functioning requires restoration of connectivity. However, low activity has been shown to initiate compensatory mechanisms that affect network connectivity. We investigated the effect of transient hypoxia and compensatory mechanisms on activity and functional connectivity using cultured cortical networks on multielectrode arrays. Networks were exposed to hypoxia of controlled depth (10–90% of normoxia) and duration (6–48 h). First, we determined how hypoxic depth and duration govern activity recovery. Then, we investigated connectivity changes during and after hypoxic incidents, mild enough for activity to recover. Shortly after hypoxia onset, activity and connectivity decreased. Following 4–6 h of ongoing hypoxia, we observed partial recovery. Only if the hypoxic burden was limited did connectivity show further recovery upon return to normoxia. Partial recovery during hypoxia was dominated by restored baseline connections, rather than newly formed ones. Baseline strengths of surviving (persisting or recovered) and lost connections did not differ nor did baseline activity at their “presynaptic” electrodes. However, “postsynaptic” electrodes of surviving connections were significantly more active during baseline than those of lost connections. This implies that recovery during hypoxia reflects an effective mechanism to restore network activity, which does not necessarily conserve prehypoxia connectivity. NEW & NOTEWORTHY Hypoxia reduced the firing rates of cultured neurons. Depending on hypoxic depth and duration, activity recovered during hypoxia and upon return to normoxia. Recovery (partial) during hypoxia was associated with restored baseline connections rather than newly formed ones. Predominantly, baseline connections with most active postsynaptic electrodes recovered, supporting the notion of effective activity homeostasis. This compensatory mechanism remained effective during ~20 h of hypoxia. Beyond 20 h of compensation, loss of activity and connectivity became irreversible.
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Lin, Yi-Tun, i Graham D. Finlayson. "Physically Plausible Spectral Reconstruction". Sensors 20, nr 21 (9.11.2020): 6399. http://dx.doi.org/10.3390/s20216399.
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Spectral reconstruction algorithms recover spectra from RGB sensor responses. Recent methods—with the very best algorithms using deep learning—can already solve this problem with good spectral accuracy. However, the recovered spectra are physically incorrect in that they do not induce the RGBs from which they are recovered. Moreover, if the exposure of the RGB image changes then the recovery performance often degrades significantly—i.e., most contemporary methods only work for a fixed exposure. In this paper, we develop a physically accurate recovery method: the spectra we recover provably induce the same RGBs. Key to our approach is the idea that the set of spectra that integrate to the same RGB can be expressed as the sum of a unique fundamental metamer (spanned by the camera’s spectral sensitivities and linearly related to the RGB) and a linear combination of a vector space of metameric blacks (orthogonal to the spectral sensitivities). Physically plausible spectral recovery resorts to finding a spectrum that adheres to the fundamental metamer plus metameric black decomposition. To further ensure spectral recovery that is robust to changes in exposure, we incorporate exposure changes in the training stage of the developed method. In experiments we evaluate how well the methods recover spectra and predict the actual RGBs and RGBs under different viewing conditions (changing illuminations and/or cameras). The results show that our method generally improves the state-of-the-art spectral recovery (with more stabilized performance when exposure varies) and provides zero colorimetric error. Moreover, our method significantly improves the color fidelity under different viewing conditions, with up to a 60% reduction in some cases.
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Kim, Min Ah, JongSerl Chun i HaiSun Shim. "Using Photovoice With Male Problematic Gamblers to Understand Their Lived Story on the Path to Recovery in South Korea". SAGE Open 12, nr 2 (kwiecień 2022): 215824402210964. http://dx.doi.org/10.1177/21582440221096435.
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Illegal gambling has significantly affected individuals’ lives in South Korea, and it is difficult for problematic gamblers to recover despite the decreasing rate of problematic gambling. This study used photovoice to explore the life experiences and desires of seven male problematic gamblers in a rehabilitation center during their path to recovery in South Korea. Photovoice consisted of six sessions involving orientation, photo-taking and group discussions of photographs, and sharing of outcomes. Twelve subthemes emerged within four main themes predetermined by the participants: (a) my life after gambling, (b) what I have lost from gambling, (c) what would help my recovery, and (d) picturing myself recovered in the near future. Participants’ lives had completely changed after they started gambling; particularly, their personality had been negatively affected and their life became filled with mental suffering. Their financial well-being was compromised, their health worsened, and they lost the trust of other people and a sense of purpose in their lives. Despite these challenges, they made tremendous efforts to recover from gambling and pictured a recovered future. The lived narratives provide evidence that recovery from gambling problems is a long journey including recognition of the problem and development of personal strategies that are perceived as beneficial for their recovery and strengthening their motivation for change.
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Wu, Matthew, Katie Russell, Carole Shaw, Anna B. Halpern, Cristina Maria Ghiuzeli, Jacob Appelbaum, Paul Hendrie, Roland B. Walter i Mary-Elizabeth M. Percival. "Evaluation of cardiac failure and recovery in acute myelogenous leukemia." Journal of Clinical Oncology 41, nr 16_suppl (1.06.2023): 7038. http://dx.doi.org/10.1200/jco.2023.41.16_suppl.7038.
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7038 Background: Cardiac failure causes significant comorbidity and death in acute myeloid leukemia (AML) patients, with incidence estimated at 10-15% (Neuendorff N Blood Adv. 2020). We sought to describe the post-treatment cardiac experience in AML survivors including factors associated with onset, persistence, and outcome of cardiac dysfunction during and following treatment. Methods: 86 patients with AML or other high-grade myeloid neoplasms treated with induction chemotherapy with or without allogeneic hematopoietic cell transplant were identified at the University of Washington/Fred Hutchinson Cancer Center from 1/2000-1/2022. All patients sustained cardiac dysfunction, defined as left ventricular ejection function (LVEF) decline of 10% with absolute LVEF below 50% during chemotherapy. A multivariable analysis was performed to compare those who recovered (LVEF recovery) and those who did not (LVEF non-recovery), examining baseline health factors, disease risk (ELN 2017), time to dysfunction and recovery, most probable cause of cardiac dysfunction based on cardiologist evaluation, and goal-directed medical therapy (GDMT) use and dosage. Results: 48% (41 out of 86) failed to recover following LVEF decline. This cohort tended to be older, male, and had more ASCVD risk factors ( p < 0.05). Neither the choice of chemotherapy regimen ( p= 0.43) nor the cumulative anthracycline dose ( p= 0.44) was significantly different between the LVEF recovery and non-recovery groups. Onset of cardiac dysfunction tended to occur later in the LVEF recovery cohort (median 72 vs. 48.5 days, p= 0.660). In subjects who recovered, the median time to recovery was 87 days (range 2-268 days). When chemotherapy was identified as the probable cause, it was associated with greater likelihood of eventual recovery ( p= 0.014), whereas ischemic coronary etiology was associated with non-recovery ( p= 0.005). Failing to recover from cardiac dysfunction correlated with shorter survival (median 229 vs 650 days, p = 0.005). Multivariable analysis is shown in the Table below. Importantly, the use of GDMT with higher doses of renin-angiotensin inhibitor medications (RAASi) were associated with higher probability of recovery (not shown, p < 0.05). Conclusions: The present study demonstrates recovery occurring in over half of AML patients who experienced cardiac dysfunction during their chemotherapy. Recovery was more common in patients whose cardiac dysfunction is precipitated by chemotherapy and in patients who received GDMT with aggressive use of RAASi. Since cardiac recovery was associated with improved survival, next steps include establishing a cardiac monitoring algorithm to initiate early and aggressive GDMT. [Table: see text]
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Kikuta, Shingo, Takashi Kiuchi, Fugaku Aoki i Masao Nagata. "Recovery of infective juveniles of the entomopathogenic nematode Steinernema carpocapsae via factors produced by insect cells and symbiotic bacteria". Nematology 11, nr 4 (2009): 611–18. http://dx.doi.org/10.1163/138855409x12465362560719.
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Abstract Entomopathogenic nematodes, Steinernema carpocapsae, show 'recovery' from the dauer form as infective juveniles (IJ) up to fourth-stage juveniles when host invasion occurs. This recovery also occurs within an insect cell line culturing system. Here we addressed the factor(s) that induce recovery. When IJ were exposed to cell medium obtained from the cultivation of Sf9 cell lines derived from armyworms (Spodoptera frugiperda), approximately 50% of IJ recovered after 4 h. By 16 h, 90% of the IJ had undergone recovery. Other insect cell lines such as silkworm (Bombyx mori)-derived BmN cells and fruit fly (Drosophila melanogaster)-derived S2 cells also secreted the recovery inducing factor(s). By contrast, mammalian cells (NIH/3T3 and HeLa) had no effect on nematode recovery. Our data also suggest that symbiotic bacteria are involved in IJ recovery; axenic IJ did not recover in the cell-cultured medium. When symbiotic bacteria isolated from IJ were propagated within the cell-cultured medium, the supernatant gained recovery-inducing activity against axenic IJ. From these results, we conclude that IJ recovery in S. carpocapsae is induced by multiple factor(s) secreted from insect cells and symbiont bacteria.
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Mohler, Charles L., Javaid Iqbal, Jianying Shen i Antonio DiTommaso. "Effects of Water on Recovery of Weed Seedlings Following Burial". Weed Science 64, nr 2 (czerwiec 2016): 285–93. http://dx.doi.org/10.1614/ws-d-15-00130.1.
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Recovery of common agricultural weeds after burial by soil was studied in four greenhouse and three field experiments. Species studied included velvetleaf, Powell amaranth, common lambsquarters, barnyardgrass, and giant foxtail. Seedlings were bent over before burial to simulate the effect of the impact of soil thrown by a cultivator. Altogether, more than 35,000 seedlings were marked and observed for recovery. No seedlings recovered from 4 cm of burial. Recovery from complete burial under 2 cm of soil ranged from 0 to 24% depending on the experiment, species, and watering treatment, but recovery greater than 5% was rare. Large-seeded species tended to recover from complete burial under 2 cm of soil better than small-seeded species. The study did not reveal a difference in recovery of grasses relative to broadleaf weeds. Overall, seedlings tended to recover best when water was applied daily after burial, worst when water was applied once on the day of burial, and to an intermediate extent when no water was applied. However, difference in recovery between the no-water and watering-once treatments were usually small. Also, many experiment by species combinations showed no significant differences among watering treatments. When even a small portion of the seedling was left exposed, recovery generally exceeded 50%. Organic weed management systems commonly use burial of weed seedlings with tine weeders and soil thrown by sweeps and hilling disks to control weeds in crop rows. Recovery from burial could pose a substantial weed management problem in some circumstances, particularly for large-seeded weed species. Maximizing burial depth is important for limiting recovery. Recovery from burial can be minimized by withholding irrigation for several days after hilling-up operations.
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Khayati, Mourad, Ines Arous, Zakhar Tymchenko i Philippe Cudré-Mauroux. "ORBITS". Proceedings of the VLDB Endowment 14, nr 3 (listopad 2020): 294–306. http://dx.doi.org/10.14778/3430915.3430920.
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With the emergence of the Internet of Things (IoT), time series streams have become ubiquitous in our daily life. Recording such data is rarely a perfect process, as sensor failures frequently occur, yielding occasional blocks of data that go missing in multiple time series. These missing blocks do not only affect real-time monitoring but also compromise the quality of online data analyses. Effective streaming recovery (imputation) techniques either have a quadratic runtime complexity, which is infeasible for any moderately sized data, or cannot recover more than one time series at a time. In this paper, we introduce a new online recovery technique to recover multiple time series streams in linear time. Our recovery technique implements a novel incremental version of the Centroid Decomposition technique and reduces its complexity from quadratic to linear. Using this incremental technique, missing blocks are efficiently recovered in a continuous manner based on previous recoveries. We formally prove the correctness of our new incremental computation, which yields an accurate recovery. Our experimental results on real-world time series show that our recovery technique is, on average, 30% more accurate than the state of the art while being vastly more efficient.
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Constantinescu-Aruxandei, Diana, i Florin Oancea. "Closing the Nutrient Loop—The New Approaches to Recovering Biomass Minerals during the Biorefinery Processes". International Journal of Environmental Research and Public Health 20, nr 3 (23.01.2023): 2096. http://dx.doi.org/10.3390/ijerph20032096.
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The recovery of plant mineral nutrients from the bio-based value chains is essential for a sustainable, circular bioeconomy, wherein resources are (re)used sustainably. The widest used approach is to recover plant nutrients on the last stage of biomass utilization processes—e.g., from ash, wastewater, or anaerobic digestate. The best approach is to recover mineral nutrients from the initial stages of biomass biorefinery, especially during biomass pre-treatments. Our paper aims to evaluate the nutrient recovery solutions from a trans-sectorial perspective, including biomass processing and the agricultural use of recovered nutrients. Several solutions integrated with the biomass pre-treatment stage, such as leaching/bioleaching, recovery from pre-treatment neoteric solvents, ionic liquids (ILs), and deep eutectic solvents (DESs) or integrated with hydrothermal treatments are discussed. Reducing mineral contents on silicon, phosphorus, and nitrogen biomass before the core biorefinery processes improves processability and yield and reduces corrosion and fouling effects. The recovered minerals are used as bio-based fertilizers or as silica-based plant biostimulants, with economic and environmental benefits.
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Lin, Cheng-Shian, Chien-Chang Chen i Yu-Cheng Chen. "XOR-Based Progressively Secret Image Sharing". Mathematics 9, nr 6 (12.03.2021): 612. http://dx.doi.org/10.3390/math9060612.
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Secret image sharing technology is a strategy for jointly protecting secret images. The (n, n) secret image sharing problem can be solved by conventional Boolean calculation easily. However, how to recover secret images with progressive steps is not addressed. In this study, we proposed an XOR-based (m, t, Ti) multi-secret image sharing scheme that shares m secret images among m participants and recovers m shared images progressively with t thresholds. The proposed secret images partition strategy (SIPS) partitions m secret images to generate intermediate images for different thresholds in the sharing procedure. Based on progressive recovery property, the proposed recovery method recovers parts of the secret images by gathering consecutive shared images. Moreover, gathering all shared images can perfectly recover all secret images. The experimental results show that the proposed XOR-based multi-secret image sharing method has high security and efficiency.
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Kabundi, Vianney Bihibindi, Camille Kayihura, Onesmus Marete, Nicodeme Habarurema i Erigene Rutayisire. "Factors Influencing Recovery among Children with Moderate Acute Malnutrition Treated at Kirehe District Health Centers". Journal of Public Health International 3, nr 1 (21.08.2020): 20–27. http://dx.doi.org/10.14302/issn.2641-4538.jphi-20-3437.
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Acute malnutrition affects nearly 52 million of under five years children globally, 75% of them live in low to middle income countries. The treatment of acute malnutrition using supplement foods could help children recovering and could reduce the risk of sickness. The present study investigated the factors associated with recovery among children with moderate acute malnutrition (MAM) under a follow-up program at health facilities. A prospective study was conducted in 16 health centers of Kirehe District of Rwanda and included 200 children from 6 to 59 months. A semi-structured questionnaire was used for data collection. All children enrolled in the study spent three months in nutrition program at health centers. The results show that after 3 months in the program 77.5% recovered from MAM. Children aged above 36 to 59 months were recovered at 90% whereas children aged from 24-35 months were recovered at 73.5%. Micronutrients and deworming provided at health facility were contributed to the recovery as children who received them were recovered at 89.1% and for those who didn’t were recovery at 72.1%. The findings demonstrated that boys were 16 times more likely to recover from MAM in three months of intervention than girls (AOR=16.19, p<0.001, 95% CI: 5.39- 48.63). Children from moderate income families were 3 more likely to recover than those from very low income families (AOR=2.8, p=0.029, 95% CI: 1.11-7.51). Male gender, receiving micronutrients and deworming from health facilities and family income status were factors associated with MAM recovery status
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Lu, Si Liang, Ming Huang i Fan Rang Kong. "The Design of a Rubik's Cube Robot". Advanced Materials Research 709 (czerwiec 2013): 432–35. http://dx.doi.org/10.4028/www.scientific.net/amr.709.432.
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This paper depicts the system design of a robot that can recover the disrupted Rubiks Cube automatically. The robot is a typical mechatronics system consisted of the mechanical structure and the electrical system. The recovery procedures of the Rubiks Cube are shown as follows. Firstly, the color recognition of each face of the Rubiks Cube is conducted with an industrial CCD camera. Then the embedded recovery algorithm is called, and the recovery steps are achieved. Finally, the pneumatic manipulators are driven by the pressurized air controllable via an electrical relay array, the Rubiks Cube is recovered step by step following the recovery sequences. The Rubiks Cube robots have been exhibited in several science museums in China, they are well welcomed by the audiences.
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Norvell, Tim, Piyush Kumar i Mayukh Dass. "The Long-Term Impact of Service Failure and Recovery". Cornell Hospitality Quarterly 59, nr 4 (26.03.2018): 376–89. http://dx.doi.org/10.1177/1938965518762835.
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This article examines customers’ short-term attitudinal and long-term behavioral responses to service failures and recovery efforts. Our data from a tracking study of casual dining restaurants customers indicate that those who did not experience any failure were more satisfied than those who experienced successful recovery following a failure. The satisfactory recovery group, in turn, was more satisfied than customers who either did not complain or were not successfully recovered following their complaints. Importantly, the pattern of brand patronage over the medium and long run differed substantially from the short-term variation in satisfaction levels across the four customer groups. In the medium term, the brand visitation frequency for those who never experienced failure was similar to those of customers who were successfully recovered. The visitation frequencies of customers who did not complain or were not successfully recovered were lower. However, over the long run, the visitation pattern changed substantially, and those who never experienced failure had higher brand patronage frequency than all the three remaining groups that behaved relatively similarly. These results suggest that customers make a distinction between the qualities of the core service and the recovery effort. Although successful recovery temporarily compensates for core failure, its positive influence dissipates over time. In the longer term, customers’ complaining behavior and the firm’s recovery efforts matters less and customers’ brand patronage depends largely on whether or not they experienced core service failure. Nevertheless, firms can recover their investments in service recovery because of increased brand patronage in the medium term.
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McClung, J. M., J. M. Davis, M. A. Wilson, E. C. Goldsmith i J. A. Carson. "Estrogen status and skeletal muscle recovery from disuse atrophy". Journal of Applied Physiology 100, nr 6 (czerwiec 2006): 2012–23. http://dx.doi.org/10.1152/japplphysiol.01583.2005.
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Although estrogen loss can alter skeletal muscle recovery from disuse, the specific components of muscle regrowth that are estrogen sensitive have not been described. The primary purpose of this study was to determine the components of skeletal muscle mass recovery that are biological targets of estrogen. Intact, ovariectomized (OVX), and ovariectomized with 17β-estradiol replacement (OVX+E2) female rats were subjected to hindlimb suspension for 10 days and then returned to normal cage ambulation for the duration of recovery. Soleus muscle mass returned to control levels by day 7 of recovery in the intact animals, whereas OVX soleus mass did not recover until day 14. Intact rats recovered soleus mean myofiber cross-sectional area (CSA) by day 14 of recovery, whereas the OVX soleus remained decreased (42%) at day 14. OVX mean fiber CSA did return to control levels by day 28 of recovery. The OVX+E2 treatment group recovered mean CSA at day 14, as in the intact animals. Myofibers demonstrating central nuclei were increased at day 14 in the OVX group, but not in intact or OVX+E2 animals. The percent noncontractile tissue was also increased 29% in OVX muscle at day 14, but not in either intact or OVX+E2 groups. In addition, collagen 1a mRNA was increased 45% in OVX muscle at day 14 of recovery. These results suggest that myofiber growth, myofiber regeneration, and extracellular matrix remodeling are estrogen-sensitive components of soleus muscle mass recovery from disuse atrophy.
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Wu, Chenkai, Dae H. Kim, Qian-Li Xue, David S. H. Lee, Ravi Varadhan i Michelle C. Odden. "Association of Frailty With Recovery From Disability Among Community-Dwelling Older Adults: Results From Two Large U.S. Cohorts". Journals of Gerontology: Series A 74, nr 4 (10.04.2018): 575–81. http://dx.doi.org/10.1093/gerona/gly080.
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Abstract Background Disability in activities of daily living (ADLs) is a dynamic process and transitions among different disability states are common. However, little is known about factors affecting recovery from disability. We examined the association between frailty and recovery from disability among nondisabled community-dwelling elders. Methods We studied 1,023 adults from the Cardiovascular Health Study (CHS) and 685 adults from the Health and Retirement Study (HRS), who were ≥65 years and had incident disability, defined as having difficulty in ≥1 ADL (dressing, eating, toileting, bathing, transferring, walking across a room). Disability recovery was defined as having no difficulty in any ADLs. Frailty was assessed by slowness, weakness, exhaustion, inactivity, and shrinking. Persons were classified as “nonfrail” (0 criteria), “prefrail” (1–2 criteria), or “frail” (3–5 criteria). Results In total, 539 (52.7%) CHS participants recovered from disability within 1 year. Almost two-thirds of nonfrail persons recovered, while less than two-fifths of the frail recovered. In the HRS, 234 (34.2%) participants recovered from disability within 2 years. Approximately half of the nonfrail recovered, while less than one-fifth of the frail recovered. After adjustment, prefrail and frail CHS participants were 16% and 36% less likely to recover than the nonfrail, respectively. In the HRS, frail persons had a 41% lower likelihood of recovery than the nonfrail. Conclusions Frailty is an independent predictor of poor recovery from disability among nondisabled older adults. These findings validate frailty as a marker of decreased resilience and may offer opportunities for individualized interventions and geriatric care based on frailty assessment.
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Nomura, Noriyuki, Hiroshi Satoh, Hajime Terada, Masaki Matsunaga, Hiroshi Watanabe i Hideharu Hayashi. "CaMKII-dependent reactivation of SR Ca2+ uptake and contractile recovery during intracellular acidosis". American Journal of Physiology-Heart and Circulatory Physiology 283, nr 1 (1.07.2002): H193—H203. http://dx.doi.org/10.1152/ajpheart.00026.2001.
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In hearts, intracellular acidosis disturbs contractile performance by decreasing myofibrillar Ca2+ response, but contraction recovers at prolonged acidosis. We examined the mechanism and physiological implication of the contractile recovery during acidosis in rat ventricular myocytes. During the initial 4 min of acidosis, the twitch cell shortening decreased from 2.3 ± 0.3% of diastolic length to 0.2 ± 0.1% (means ± SE, P < 0.05, n = 14), but in nine of these cells, contractile function spontaneously recovered to 1.5 ± 0.3% at 10 min ( P < 0.05 vs. that at 4 min). During the depression phase, both the diastolic intracellular Ca2+ concentration ([Ca2+]i) and Ca2+ transient (CaT) amplitude increased, and the twitch [Ca2+]i decline prolonged significantly ( P < 0.05). In the cells that recovered, a further increase in CaT amplitude and a reacceleration of twitch [Ca2+]i decline were observed. The increase in diastolic [Ca2+]i was less extensive than the increase in the cells that did not recover ( n = 5). Blockade of sarcoplasmic reticulum (SR) function by ryanodine (10 μM) and thapsigargin (1 μM) or a selective inhibitor of Ca2+-calmodulin kinase II, 2-[ N- (2-hydroxyethyl)- N-(4-methoxybenzenesulfonyl)] amino- N-(4-chlorocinnamyl)- N-methyl benzylamine (1 μM) completely abolished the reacceleration of twitch [Ca2+]i decline and almost eliminated the contractile recovery. We concluded that during prolonged acidosis, Ca2+-calmodulin kinase II-dependent reactivation of SR Ca2+ uptake could increase SR Ca2+ content and CaT amplitude. This recovery can compensate for the decreased myofibrillar Ca2+ response, but may also cause Ca2+ overload after returning to physiological pHi.
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M, Takahashi. "The Chemical Change of the Ash Components through Phosphorus Recovery of Dehydrated Sludge by Incineration using Alkali Metal Compounds". Open Access Journal of Waste Management & Xenobiotics 4, nr 4 (2020): 1–6. http://dx.doi.org/10.23880/oajwx-16000168.
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In order to recover phosphorus from the wastewater sludge, the dehydrated sludge was mixed with the reagent of NaOH, KOH or Na 2 CO 3 , and incinerated at 750 °C or 900 °C. Phosphorus in the incinerated ash of the sludge was dissolved by the addition of the hot water, and recovered by the evaporation of the extract. The recovered phosphorus was confirmed to be an alkali metal phosphate, and the recovery rate reached about 75% regardless in these reagents (NaOH, KOH or Na 2 CO 3 ). The chemical change of the ash components were also found through phosphorus recovery.
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Alexander, Andrew M., Shane M. Hammer, Kaylin D. Didier, Lillie M. Huckaby i Thomas J. Barstow. "Neuromuscular recovery from severe- and extreme-intensity exercise in men and women". Applied Physiology, Nutrition, and Metabolism 47, nr 4 (kwiecień 2022): 458–68. http://dx.doi.org/10.1139/apnm-2021-0407.
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Maximal voluntary contraction force (MVC), potentiated twitch force (Qpot), and voluntary activation (%VA) recover to baseline within 90 s following extreme-intensity exercise. However, methodological limitations mask important recovery kinetics. We hypothesized reductions in MVC, Qpot, and %VA at task failure following extreme-intensity exercise would be less than following severe-intensity exercise, and Qpot and MVC following extreme-intensity exercise would show significant recovery within 120 s but remain depressed following severe-intensity exercise. Twelve subjects (6 men) completed 2 severe-intensity (40, 50% MVC) and 2 extreme-intensity (70, 80% MVC) isometric knee-extension exercise bouts to task failure (Tlim). Neuromuscular function was measured at baseline, Tlim, and through 150 s of recovery. Each intensity significantly reduced MVC and Qpot compared with baseline. MVC was greater at Tlim (p < 0.01) and at 150 s of recovery (p = 0.004) following exercise at 80% MVC compared with severe-intensity exercise. Partial recovery of MVC and Qpot were detected within 150 s following Tlim for each exercise intensity; Qpot recovered to baseline values within 150 s of recovery following exercise at 80% MVC. No differences in %VA were detected pre- to post-exercise or across recovery for any intensity. Although further analysis showed sex-specific differences in MVC and Qpot, future studies should closely examine sex-dependent responses to extreme-intensity exercise. It is clear, however, that these data reinforce that mechanisms limiting exercise tolerance during extreme-intensity exercise recover quickly. Novelty: Severe- and extreme-intensity exercise cause independent responses in fatigue accumulation and the subsequent recovery time courses. Recovery of MVC and Qpot occurs much faster following extreme-intensity exercise in both men and women.
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Molinuevo-Salces, Beatriz, Berta Riaño, Matias B. Vanotti, David Hernández-González i María Cruz García-González. "Pilot-Scale Demonstration of Membrane-Based Nitrogen Recovery from Swine Manure". Membranes 10, nr 10 (1.10.2020): 270. http://dx.doi.org/10.3390/membranes10100270.
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Gas-permeable membranes technology presents a high potential for nitrogen (N) recovery from wastewaters rich in ammonia (NH3). The EU project Ammonia Trapping (AT) is aimed at transferring knowledge from the lab-scale level to on-farm pilot-scale level, using this technology to recover NH3 from livestock wastewaters. The goal of this study is to report the results of an on-farm pilot-scale demonstration plant using gas-permeable membranes to recover N from raw swine manure. After a setup optimization of the plant, stable, and continuous operation was achieved. The maximum NH3 recovery rate obtained was 38.20 g NH3-N m−2 membrane day−1. This recovery rate was greatly affected by the temperature of the process. In addition to its contribution to NH3 emissions reduction, this technology contributes to the recovery of nutrients in the form of a concentrated stable ammonium sulphate solution. This solution contained 3.2% of N, which makes it suitable for fertigation. The economic approach revealed an economic feasibility of the technology, resulting in a cost of 2.07 € per kg N recovered.
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Gee, C., i R. Robertson. "Recovery of the flight system following ablation of the tegulae in immature adult locusts". Journal of Experimental Biology 199, nr 6 (1.06.1996): 1395–403. http://dx.doi.org/10.1242/jeb.199.6.1395.
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The capacity of the flight system to recover from ablation of the tegulae was studied in immature adult Locusta migratoria and compared with recovery in mature adults. We ablated the hindwing tegulae or all tegulae in adult locusts either 1 day after the imaginal moult (immature locusts) or 2 weeks after the imaginal moult (mature locusts). We monitored recovery throughout the recovery period by using a stroboscope to measure the wingbeat frequency of tethered locusts. In addition, we measured other parameters of the flight motor pattern using electromyographic electrodes implanted into recovered locusts. Both methods of monitoring recovery yielded the same results. There was no reduction, during adult maturation, in the capacity of the locust flight system to recover from the loss of these proprioceptors. Plasticity of the locust flight system was therefore maintained in the mature adult locust. This suggests that the flight system is not fixed and simply implemented when the locust reaches adulthood, but that the circuitry can be remodelled throughout the animal's life to produce behaviour adapted to the needs and constraints of the individual.
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Scales, Courtney. "The recovery period". Veterinary Nurse 14, nr 8 (2.10.2023): 330–37. http://dx.doi.org/10.12968/vetn.2023.14.8.330.
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Recovery from anaesthesia begins when the maintenance agent is discontinued and the patient starts to regain consciousness. The importance of patient monitoring throughout the recovery period should not be underestimated and no matter the patient or procedure, individual risks for the recovery period should be identified and mitigated. Each patient will recover differently from their anaesthetic experience. How the pre-anaesthesia, induction and maintenance phases of the anaesthesia have been prepared and planned will contribute to how the patient will recover.
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Krüger, Renata L., Saied Jalal Aboodarda, Libia Marcela Jaimes, Pierre Samozino i Guillaume Y. Millet. "Cycling performed on an innovative ergometer at different intensities–durations in men: neuromuscular fatigue and recovery kinetics". Applied Physiology, Nutrition, and Metabolism 44, nr 12 (grudzień 2019): 1320–28. http://dx.doi.org/10.1139/apnm-2018-0858.
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The majority of studies have routinely measured neuromuscular (NM) fatigue with a delay (∼1–3 min) after cycling exercises. This is problematic since NM fatigue can massively recover within the first 1–2 min after exercise. This study investigated the etiology of knee extensors (KE) NM fatigue and recovery kinetics in response to cycling exercises by assessing NM function as early as 10 s following cycling and up to 8 min of recovery. Ten young males performed different cycling exercises on different days: a Wingate (WING), a 10-min task at severe-intensity (SEV), and a 90-min task at moderate-intensity (MOD). Electrically evoked and isometric maximal voluntary contractions (IMVC) of KE were assessed before, after, and during recovery. SEV induced the highest decrease in IMVC. Peak twitch (Pt) was more reduced in WING and SEV than in MOD (p < 0.001), whereas voluntary activation decreased more after MOD than WING (p = 0.043). Regarding Pt and the ratio between low- and high-frequency doublet (i.e., low-frequency fatigue), recovery was faster for WING, whereas IMVC and high-frequency doublet recovered slower during MOD (p < 0.05). Our results confirm that peripheral fatigue is greater after WING and SEV, while central fatigue is greater following MOD. Peripheral fatigue can substantially recover within minutes after a supramaximal exercise while NM function recovered slower after prolonged, moderate-intensity exercise. This study provides an accurate estimation of NM fatigue and recovery kinetics because of dynamic exercise with large muscle mass by significantly shortening the delay for postexercise measurements.
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Yuan, DongBing, Bintai Xu i Sheng Gao. "A Recovery Algorithm of Power Quality Big Data Based on Improved Differential Kriging". Journal of Nanoelectronics and Optoelectronics 16, nr 9 (1.09.2021): 1444–49. http://dx.doi.org/10.1166/jno.2021.3099.
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The integrity of power quality big data directly affects the state sensing accuracy and operation safety of the power system. Therefore, the recovery algorithm of power quality big data based on improved differential Kolding is studied to improve the big data recovery effect. The trend turning point is used to divide the time series of power quality big data, and the characteristic matrix of time series is constructed. The recovery model of power quality big data is built according to the characteristic matrix. By improving the differential Kriging solution model, the estimated value of the data to be recovered is obtained and the big data recovery is completed. Experimental results show that the convergence speed is the fastest when the initial scaling factor is 0.3. The algorithm can effectively recover the big data of random missing and continuous missing. In different fault recovery scenarios, the signal-to-noise ratio (SNR) is high, the structure similarity value is high, the data recovery accuracy is accurate, and the integrity of the restored data is better.
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Pofi, Riccardo, Sonali Gunatilake, Victoria Macgregor, Brian Shine, Robin Joseph, Ashley B. Grossman, Andrea M. Isidori i in. "Recovery of the Hypothalamo-Pituitary-Adrenal Axis After Transsphenoidal Adenomectomy for Non–ACTH-Secreting Macroadenomas". Journal of Clinical Endocrinology & Metabolism 104, nr 11 (21.06.2019): 5316–24. http://dx.doi.org/10.1210/jc.2019-00406.
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Abstract Context Secondary adrenal insufficiency is a potential complication of transsphenoidal adenomectomy (TSA). Most centers test recovery of the hypothalamo-pituitary-adrenal (HPA) axis after TSA, but, to our knowledge, there are no data predicting likelihood of recovery or the frequency of later recovery of HPA function. Objective To assess timing and predictors of HPA axis recovery after TSA. Design Single-center, retrospective analysis of consecutive pituitary surgeries performed between February 2015 and September 2018. Patients Patients (N = 109) with short Synacthen test (SST) data before and at sequential time points after TSA. Main outcome measures Recovery of HPA axis function at 6 weeks, and 3, 6, and 9 to12 months after TSA. Results Preoperative SST indicated adrenal insufficiency in 21.1% Among these patients, 34.8% recovered by 6 weeks after TSA. Among the 65.2% (n = 15) remaining, 13.3% and 20% recovered at 3 months and 9 to 12 months, respectively. Of the 29% of patients with adrenal insufficiency at the 6-week SST, 16%, 12%, and 6% subsequently recovered at 3, 6, and 9 to 12 months, respectively. Preoperative SST 30-minute cortisol, postoperative day 8 cortisol, and 6-week postoperative SST baseline cortisol levels above or below 430 nmol/L [15.5 μg/dL; AUC ROC, 0.86]; 160 nmol/L (5.8 μg/dL; AUC ROC, 0.75); and 180 nmol/L (6.5 μg/dL; AUC ROC, 0.88), were identified as cutoffs for predicting 6-week HPA recovery. No patients with all three cutoffs below the threshold recovered within 12 months after TSA, whereas 92% with all cutoffs above the threshold recovered HPA function within 6 weeks (OR, 12.200; 95% CI, 5.268 to 28.255). Conclusion HPA axis recovery can occur as late as 9 to 12 months after TSA, demonstrating the need for periodic reassessment of patients who initially have SST-determined adrenal insufficiency after TSA. Pre- and postoperative SST values can guide which patients are likely to recover function and potentially avoid unnecessary lifelong glucocorticoid replacement.
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Alias, S., i N. A. Abdul-Hakim. "Terephthalic Acid (TPA) Recovery from Plastic Bottle of Polyethylene Terephthalate (PET) through Hydrolysis Treatment". IOP Conference Series: Materials Science and Engineering 1257, nr 1 (1.10.2022): 012007. http://dx.doi.org/10.1088/1757-899x/1257/1/012007.
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Abstract Recovery of plastic waste has a positive influence on solid waste management as it can bring new life to plastic waste. Hydrolysis treatment is one of the approaches for plastic waste recovery, in which plastic monomer can be recovered through depolymerisation. This study explored the recovery of polyethylene terephthalate (PET) plastic in nitric acid and leachate. The weight changes were analysed in PET when exposed to different hydrolysis agents (nitric acid and leachate) at different reaction times and temperatures. The monomer recovery of PET, known as terephthalic acid (TPA), was also evaluated. It was found that high temperatures and reaction times promoted to the high recovery of TPA. The PET residue measured as weight difference was found in line with the trend of TPA yield. The hydrolysis using nitric acid can recover more TPA than the leachate system. The knowledge obtained from this study would be beneficial in upcycling plastic waste into high-value end products.
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Rapp, Alyson H., Robert B. Sowby i Gustavious Williams. "Economy of Scale of Energy Intensity in Aquifer Storage and Recovery (ASR)". Water 16, nr 3 (4.02.2024): 503. http://dx.doi.org/10.3390/w16030503.
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More water utilities are adopting aquifer storage and recovery (ASR) to balance long-term water supply and demand. Due to large implementation and operation costs, ASR projects need to be optimized, particularly for energy use, which is a major operating expense. This study examines the relationships among energy use, recharge, and recovery at two ASR projects in the western United States. The major finding is an economy of scale for recovery processes, but not for gravity-fed recharge processes. The economy of scale found is as follows: the energy intensity recovered decreases with volume. This suggests it is more energy-efficient to recover large volumes of water in one interval instead of recovering smaller volumes at more frequent intervals. The H2Oaks recovery process experienced a 78% decrease in energy intensity from 0 to 50,000 m3 recovered, while the Sand Hollow site experienced a 43% decrease in energy intensity from 0 to 50,000 m3 recovered. Statistical analyses of the recovery process showed p values lower than 0.0001, R2 values between 0.43 and 0.57, and a RMSE value between 0.55 and 2.1, indicating the presence of a moderate correlation between energy and volume. This economy of scale has been observed in multiple instances in water and wastewater treatment. This finding not only has applications to ASR but also to all recovery or recharge wells, whether or not they are paired with each other. Furthermore, this study confirms the need for more reliable and accessible energy data to fully understand the implications of the energy–water nexus.
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Zang, Jingjing, Jennifer Keim, Edda Kastenhuber, Matthias Gesemann i Stephan C. F. Neuhauss. "Recoverin depletion accelerates cone photoresponse recovery". Open Biology 5, nr 8 (sierpień 2015): 150086. http://dx.doi.org/10.1098/rsob.150086.
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The neuronal Ca 2+ -binding protein Recoverin has been shown to regulate phototransduction termination in mammalian rods. Here we identify four recoverin genes in the zebrafish genome, rcv1a , rcv1b , rcv2a and rcv2b , and investigate their role in modulating the cone phototransduction cascade. While Recoverin-1b is only found in the adult retina, the other Recoverins are expressed throughout development in all four cone types, except Recoverin-1a, which is expressed only in rods and UV cones. Applying a double flash electroretinogram (ERG) paradigm, downregulation of Recoverin-2a or 2b accelerates cone photoresponse recovery, albeit at different light intensities. Exclusive recording from UV cones via spectral ERG reveals that knockdown of Recoverin-1a alone has no effect, but Recoverin-1a/2a double-knockdowns showed an even shorter recovery time than Recoverin-2a-deficient larvae. We also showed that UV cone photoresponse kinetics depend on Recoverin-2a function via cone-specific kinase Grk7a. This is the first in vivo study demonstrating that cone opsin deactivation kinetics determine overall photoresponse shut off kinetics.
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Suri, Devika J., Isabel Potani, Akriti Singh, Stacy Griswold, William W. Wong, Breanne Langlois, Ye Shen i in. "Body Composition Changes in Children during Treatment for Moderate Acute Malnutrition: Findings from a 4-Arm Cluster-Randomized Trial in Sierra Leone". Journal of Nutrition 151, nr 7 (20.04.2021): 2043–50. http://dx.doi.org/10.1093/jn/nxab080.
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ABSTRACT Background Measures that better describe “healthy” and sustainable recovery during nutritional treatment of children with moderate acute malnutrition (MAM) are needed. Objectives We compared changes to body composition among children receiving 1 of 4 specialized nutritious food (SNFs) during treatment of MAM and by recovery and relapse outcomes. Methods The study was nested within a prospective, cluster-randomized, community-based, cost-effectiveness trial assessing 4 SNFs to treat children aged 6–59 mo with MAM [midupper arm circumference (MUAC) ≥11.5 cm and <12.5 cm without bipedal edema] in Sierra Leone. Biweekly SNF rations (1 of 3 fortified-blended foods or a lipid-based nutrient supplement) were given until children recovered (MUAC ≥12.5 cm), or up to 7 rations (∼12 wk). Deuterium dilution was used to estimate fat-free mass (FFM) and fat mass (FM) at enrollment and after 4 wk of treatment to ensure similar treatment exposure among the participants. Another MUAC measurement was performed among recovered children 4 wk after program exit to determine whether recovery was sustained. ANOVA, paired t tests, and linear regression models were used to determine significant differences in changes from baseline to 4 wk. Results Among 312 analyzed participants, mean baseline weight comprised ∼80% FFM; mean weight gained after 4 wk comprised ∼82% FFM. Changes in FM and FFM among 4 SNFs were similar. Children who recovered gained more weight (241%), FFM (179%), and weight-for-height z score (0.44 compared with 0) compared with those who did not recover; sustainers gained 150% more weight. FM gains were positive among recovered children and sustainers, as well as negative among those who did not recover or sustain recovery, but not significantly different. Conclusions Four SNFs had similar effects on body composition in children after 4 wk of treatment for MAM, showing a healthy pattern of weight gain, the majority being FFM. Differential responses to treatment underscore a need for further research to provide targets for healthy, sustainable recovery. This trial was registered at clinicaltrials.gov as NCT03146897.
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Ahn, Shinmi, i Hyungbin Park. "Examining the Feasibility of the Sturm–Liouville Theory for Ross Recovery". Mathematics 8, nr 4 (9.04.2020): 550. http://dx.doi.org/10.3390/math8040550.
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Recent studies have suggested that it is feasible to recover a physical measure from a risk-neutral measure. Given a market state variable modeled as a Markov process, the key concept is to extract a unique positive eigenfunction of the generator of the Markov process. In this work, the feasibility of this recovery theory is examined. We prove that, under a restrictive integrability condition, recovery is feasible if and only if both endpoints of the state variable are limit-point. Several examples with explicit positive eigenfunctions are considered. However, in general, a physical measure cannot be recovered from a risk-neutral measure. We provide a financial and mathematical rationale for such recovery failure.
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Recke, Liese. "Is it possible to recover from recovery?" Nordic Studies on Alcohol and Drugs 34, nr 2 (kwiecień 2017): 112–14. http://dx.doi.org/10.1177/1455072517697327.
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Isaacs, David. "The recovery position helps unconscious children recover". Journal of Paediatrics and Child Health 52, nr 12 (grudzień 2016): 1119–20. http://dx.doi.org/10.1111/jpc.13416.
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Chen, Ci Yun, Shu Ming Wen, Yong Jun Xian, Qi Cheng Feng i He Fei Zhao. "Recovery of Iron from Tailings of Yangla Copper Ore by Magnetic Separation". Advanced Materials Research 634-638 (styczeń 2013): 3442–45. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3442.
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Against the dwindling status of mineral resources at present, effective recycling of tailings resources is an effective way to alleviate the shortage of resources, and to improve enterprise efficiency. This study was aimed to recover iron from tailings of Yangla copper ore, Fe content of which was 15.31%, and the content of strong magnetic iron mineral was about 11%. Considering low content of weak magnetic iron mineral and its complex and costly recovery process, weak magnetic iron mineral did not be recovered, so strong magnetic iron mineral was only recovered in this study. Under no grinding condition, Fe recovery of 6.47% with iron grade of 60.87% was obtained. It effectively recovered strong magnetic minerals from tailings, and got enterprise increase additional revenue with good economic benefits.
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Menikou, Stephanie, Andrew J. McArdle, Ming-Shi Li, Myrsini Kaforou, Paul R. Langford i Michael Levin. "A proteomics-based method for identifying antigens within immune complexes". PLOS ONE 15, nr 12 (23.12.2020): e0244157. http://dx.doi.org/10.1371/journal.pone.0244157.
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A novel approach to recover and identify immune complexes (ICs) was developed using size exclusion chromatography (SEC) and affinity chromatography on immunoglobulin binding columns (HiTrap Protein G). The purification process was monitored by 1D SDS-PAGE, protein staining, Western blotting and, finally, liquid chromatography tandem mass spectrometry (LC MS/MS) was used to identify the recovered antigens. This approach was applied to serum with artificially created immune complexes (ICs) comprising vaccine antigen (influenza) and antibody, which led to recovery and identification of influenza peptides within the recovered ICs. This approach was compared with the established method for IC detection and recovery, polyethylene glycol (PEG) precipitation, followed by LC MS/MS. Both approaches successfully enabled capture, recovery and characterization of immunoglobulins and influenza antigen(s) in complex with the immunoglobulins. However, PEG precipitation has the advantage of simplicity and is more suited for large scale studies.
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Kim, Taehoon, Wonbin Kim, Daehee Seo i Imyeong Lee. "Secure Encapsulation Schemes Using Key Recovery System in IoMT Environments". Sensors 21, nr 10 (17.05.2021): 3474. http://dx.doi.org/10.3390/s21103474.
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Recently, as Internet of Things systems have been introduced to facilitate diagnosis and treatment in healthcare and medical environments, there are many issues concerning threats to these systems’ security. For instance, if a key used for encryption is lost or corrupted, then ciphertexts produced with this key cannot be decrypted any more. Hence, this paper presents two schemes for key recovery systems that can recover the lost or the corrupted keys of an Internet of Medical Things. In our proposal, when the key used for the ciphertext is needed, this key is obtained from a Key Recovery Field present in the cyphertext. Thus, the recovered key will allow decrypting the ciphertext. However, there are threats to this proposal, including the case of the Key Recovery Field being forged or altered by a malicious user and the possibility of collusion among participating entities (Medical Institution, Key Recovery Auditor, and Key Recovery Center) which can interpret the Key Recovery Field and abuse their authority to gain access to the data. To prevent these threats, two schemes are proposed. The first one enhances the security of a multi-agent key recovery system by providing the Key Recovery Field with efficient integrity and non-repudiation functions, and the second one provides a proxy re-encryption function resistant to collusion attacks against the key recovery system.