Interruption Of Process Research Articles

Problems of Pension Provision Caused by COVID-19

The corona virus infection (COVID-19) had a destructive impact on the finance and economic system. There were interruptions in business processes, general slowing-down in economic activity, sharp rise in unemployment rate and initial drop in asset value due to finance market contraction. Monetary-credit and taxation-budget policy resulted in even higher interest rates, sharp growth in budget deficit and state debt. These factors affected both the state pension distribution and defined contribution pension systems. The goal of the research is to assess the impact of the corona virus infection (COVID-19) on financial wellbeing of the population and economic development of the country. Conditions were studied, when pensioners could invest their savings. The following methods of academic investigation were used: analysis, forecasting, synthesis, induction, deduction, observation and comparison. A conclusion was drawn about the adverse impact of the pandemic on the pension system and changes in the global inflation and unemployment rates during the period of pandemic worsening in 2020–2021. Forecasts of the mentioned indicators were calculated up to 2024. Feasible measures of people support during the pandemic were proposed. The problem of pension system vulnerability to cyber attacks and various frauds was highlighted.

An over review of desertification in Xinjiang, Northwest China

Desertification research in arid and semi-arid regions has always been actively pursued. In China, the problem of desertification in Xinjiang has also received extensive attention. Due to its unique geography, many scholars have conducted corresponding research on the desertification status of Xinjiang. In this paper, we comprehensively reviewed desertification in Xinjiang, and compared the underlying mechanisms of desertification and the status of desertification conditions after the implementation of ecological control projects. On a larger scale, desertification in Xinjiang can be divided into soil salinization inside oases and sandy desertification on the edges of oases. Human activities are considered the main cause of desertification, but natural factors also contribute to varying degrees. Research on the mechanisms of desertification has effectively curbed the development of desertification, but unreasonable use of land resources accelerates the risk of desertification. For desertification control, there are several key points. First, desertification monitoring and the early warning of desertification expansion should be strengthened. Second, monitoring and reversing soil salinization also play an important role in the interruption of desertification process. It is very effective to control soil salinization through biological and chemical methods. Third, the management of water resources is also essential, because unreasonable utilization of water resources is one of the main reasons for the expansion of desertification in Xinjiang. Due to the unreasonable utilization of water resources, the lower reaches of the Tarim River are cut off, which leads to a series of vicious cycles, such as the deterioration of ecological environment on both sides of the river and the worsening of desertification. However, in recent years, various desertification control projects implemented in Xinjiang according to the conditions of different regions have achieved remarkable results. For future studies, research on the stability of desert-oasis transition zone is also significantly essential, because such investigations can help to assess the risk of degradation and control desertification on a relatively large scale.

Exploiting dynamic programming in optimizing reliability-centered maintenance

Maintenance Scheduling (MS) is one of the most persistent issues that might arise in a manufacturing facility. It is crucial to do routine maintenance on machinery in order to avoid unplanned breakdowns. This type of failure could cause costly manufacturing process interruptions. Numerous strategies have been developed in an effort to deal with MS. But because each system has specific requirements and limitations, this is a particularly challenging problem. The scheduling of maintenance for machine units at a manufacturing facility that produces aluminum in moderate amounts is explored in this study using a dynamic programming approach. The Maintenance Scheduling model is put into practice using a Reliability-Centered Maintenance (RCM) strategy after an investigation of the architecture and infrastructure of the plant. By maintaining machines at acceptable dependability values and minimizing maintenance costs, this method is created to optimize the maintenance schedule. Here, factors like reliability and failure rate that affect the MS problem are discussed and investigated. Applying the model to a situation that represents the aluminum manufacturing allows it to be tested in a variety of different circumstances. The results of applying the model to the test cases are given, followed by a discussion of the results. The results obtained are reasonable and show that the dynamic programming strategy is a successful way to fix the MS issue that the manufacturing plant's machines are experiencing.

Numerical appraisal of time-dependent peristaltic duct flow using Casson fluid

Interruption of continuous process and decreasing flow rate over time are very common challenges in peristaltic flow. This research takes an initiative to restrain the thermal and fluid flow rate over time by unsteady finite element analysis of Casson fluid flow through a two-dimensional peristaltic duct. The time-dependent flow equation exists in conjugate forced convection and the energy equation consists of radiative heat flux and entropy reduction. The top and bottom walls of the peristaltic duct are considered as contact with air. A circular bolus is set up in the middle of the duct. Four types of Casson fluids like slurry, silicone oil, apple juice, and blood are used as working fluids. The finite element method of Galerkin's residual technique is applied to solve the leading second ordered non-linear partial differential equations with proper border conditions. The effects of pertinent parameters on entropy reduction and thermal transport are analyzed. Results are displayed qualitatively in terms of streamlines, vortex field, and heatline contours as well as quantitatively in the form of average temperature, mean thermal, viscous, and total entropy. The obtained numerical results show that thermal performance and entropy reduction are significantly influenced by forced convection, atmospheric characteristics, internal thermal radiation, and Casson fluids. Approximately 6.99% and 72.13% increment of temperature and flow irreversibility are found for shear stress variation of Casson fluid from thickening to thinning. Decreasing thermal performance of 18.71% and increasing energy loss of 38.07% are noticed within the variation of Casson fluids (slurry, silicone oil, apple juice, and blood). About 14.05% enhancement of thermal transport and 64.91% reduction of total entropy are observed due to increasing internal thermal radiation from 0.5 to 2. The numerical results from this research represent a better thermal and fluid flow rate over time compared to the experimental/existing methodology/numerical research. The obtained flow and thermal transport phenomena expose many attention-grabbing performances which deserve additional investigation on Casson fluid characteristics particularly the continuation of flow rate. A fine approach to the biological peristaltic system is offered by the results.

Investigation of the influence of process interruption on mechanical properties of metal additive manufacturing parts

Fabrication methods of metals range from traditional subtractive methods to the new and emerging additive manufacturing technologies. As expected, these different metal fabrication and processing methods have a significant impact on the material structure and mechanical properties of final products. While the impact of the manufacturing process on the mechanical properties of metals is well understood for traditional manufacturing methods, the relationship between the additive manufacturing process and product characteristics is quite complex and still an ongoing research topic. Accordingly, many research studies on the material structure and mechanical properties of parts produced using additive manufacturing have been conducted in recent years. However, current literature considers ideal operating conditions while neglecting to consider the impact of printing process interruption on metal additive manufacturing parts. Additive manufacturing processes rely on continuous layer by layer printing of material, with strict melting and solidification requirements. When the printing process is interrupted, thermal dynamics governing binding strength and defect generation within layers are disturbed. It is expected that additive manufacturing process interruptions impact layer binding, which in turn jeopardizes the development of uniform microstructures and mechanical properties of metal parts. Accordingly, in this paper the impact of process interruption on the microstructure and mechanical properties of titanium samples printed using Wire Arc Additive Manufacturing (WAAM) is investigated. Various tests on the sample specimens are conducted including: Acoustic Resonance testing, Nanomechanical testing, X-ray Computed Tomography, and Ultrasonic nondestructive testing (NDT). The results indicate that additive manufacturing process interruption results in serious defects such as porosities and cracking that impact the mechanical properties of additive manufacturing metal parts.

Diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) values of optic nerve head in Papilledema

BackgroundPapilledema is optic disc pathology characterized by swelling of the optic disc occurring secondary to elevated intracranial pressure (ICP), and it was proposed that elevated ICP is transferred along the subarachnoid space to the optic nerve (ON) leading to metabolic process interruptions and MRI changes within ON head. This study aimed to rule out if DWI and ADC map can be used as a diagnostic tool for detection of papilledema and if ADC values can be helpful in papilledema grading.ResultADC value was significantly lower in papilledema cases group (A) in comparison with control group (B).ConclusionDiffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) map can be utilized as a diagnostic tool for diagnosis of papilledema, and ADC values can be helpful in diagnosis of papilledema grade.

Bottom-up Gold Filling for Manufacture of X-Ray Gratings: To What Limit?

Since its discovery three years ago, a process enabling extreme superconformal deposition of gold in recessed features has been advanced to achieve void-free filling of progressively more varied and challenging features and patterned substrates for application in X-ray imaging. During the past year in particular, void-free filling in vias, trenches with aspect ratio (height/width) exceeding 60, trenches more than 300 mm deep, fractal patterns of spatially varying depth and fully patterned 100 mm wafers for all the aforementioned were demonstrated for the first time. Examples are shown in the included figure. The process and mechanism differ substantially from processes for superconformal copper filling of nanometer size damascene on-chip trenches and vias as well as micrometer size through silicon vias and even larger microvias used to connect semiconductor chips in the microelectronics industry. The bottom-up deposition can be initiated using a wide range of processing conditions so that filling is robust even to process interruption including wafer removal and rinse. Because the bottom-up evolution can also be made to self-passivate at a chosen depth below feature openings well controlled fill profiles can be obtained across wafer scale substrates, even with features of variable width and depth. I present examples of the noted feature filling results with relevant electrochemistry and discuss aspects of the deposition processes and underlying mechanism. Figure 1

Pedagogical tools for combined learning of dental prosthetics in times of pandemic

Background: Education in dentistry, as in other health sciences, comprises three important components: a) classes, lectures and training based on problem solving, b) training practices with the help of simulators and c) clinical skills practices with patients. . As a result of the SARS-CoV-2 virus outbreak, there was an abrupt interruption in this entire process due to mandatory social distancing. Consequently, there was an increase in the search for new forms of distance education. Objective of the study : The objective of this review is to reveal the pedagogical tools that were used and could be used for learning dental prosthetics in times of pandemic. Method: The methodology used consisted of a search chain of research papers published in both Spanish and English in databases such as Pubmed , EBSCO, EBSCO HOST, EBSCO HOST Stomatology , Elsiever , Scopus and Scholar . Academic and that were published between 2009 and 2021.

NEW METHOD OF ON-LINE SUCCESSIVE-APPROXIMATION ADC CALIBRATION

A new method of successive approximation ADC calibration without interruption of the main conversion process is proposed. The method is based on the use of information redundancy in the form of redundant positional number systems. The method is based on the selection and analysis of unused combinations in the redundant ADC conversion characteristic.

Concealed Fragmentariness: On the Compositional Process of Bartók's String Quartets

Abstract The present paper is a preliminary study to a deeper understanding of Bartók's compositional process: how he filled the music paper even if the notation appears continuous. He did not always write the draft from the top-left corner to the bottom-right corner but occasionally skipped some measures or phrases that he intended to write down later. Thus, the continuity draft is not necessarily regarded as a continuity; it might have consisted of fragments but they have been eventually concealed in the final form of the draft. This may directly affect our interpretation of Bartók's creative process. The present research takes the visual appearance of a draft as a clue to examine its hypothetical fragmentariness. Beginning with the examination of some actual blank spaces that were never filled, the paper deals with cases where the original existence of fragments is suggested by the extraordinary appearance of the draft, such as a blank space at the end of a system, notations in the margin, re-organization of bar-lines, etc. Besides systematic approaches to fragmentariness, the author offers some interpretation concerning the reasons why Bartók did not write the draft in an ordinary way. There might have been different explanations for the interruption of the linear compositional process. One of the important findings of this paper is that Bartók's bar-lines do not always mark metric accents but sometimes simply facilitate the performers' orientation. Even though the occasional special function of some of his bar-lines as mere markers of orientation is explained by Bartók in a letter to Rudolf Kolisch, the existence of philological evidence to this effect may further underline its validity and importance.

When clients vote for brokers: How elections improve public goods provision in urban slums

Does electoral democracy improve public goods provision for the poor? This paper considers whether and how the introduction of elections to choose slum-level representatives affects the provision of basic public goods and services in these communities. To address this question I take advantage of an unexpected interruption in the judicial process that introduced elections in urban slums in Argentina. Drawing on an original household survey, an expert survey, and insights from in-depth interviews, I show that the introduction of elections enhanced public goods and services provision only in slums with high organizational density. In such a context, existing organizational structures and citizens’ organizational experience facilitated individuals’ endeavors to demand and monitor the provision of public goods and the emergence of new leaders other than partisan brokers that skewed political competition towards the provision of public goods. These findings contribute to our understanding of the relationship between elections, organizational activity and public goods provision in urban informal settlements and have implications for development practitioners: Under the right conditions, the democratic selection of slum intermediaries vis-à-vis the state can substantially improve the livelihood of these communities.

Concurrent 22. Presentation for: Extracting events from Daily Drilling Reports using Fuzzy String Matching

Presented on Thursday 19 May: Session 22 Continuous monitoring of oil drilling operations reduces process interruptions and equipment failure. It also contributes to the development of Key Performance Indicators, which leads to more efficient resource management. Daily Drilling Reports (DDRs) have long been the primary way of recording noticeable events, such as stuck pipe. DDRs came to constitute a valuable information base for most oil drilling companies. However, the task of extracting knowledge from DDRs can be costly and time-consuming. This work proposes an approach to recognise drilling events in DDRs using a rule-based language processing method called Fuzzy String Matching (FSM). We applied the FSM algorithm to search for a set of predefined keywords and key phrases to extract possible Invisible Lost Time (ILT) events from DDRs that may indicate risks or low operational efficiency. The fuzzy part of the algorithm allows the identification of terms or expressions that match the pre-established ones approximately rather than exactly, accounting for typos and different suffixes or prefixes. The proposed solution was applied on a data set of 392 real-world DDR records from a drilling company using a set of six ILT event’s key phrases annotated by Subject Matter Specialists. This process can be readily replicated to other events. The results show that in 116 reports tagged as normal, 92 records were identified as possible ILT events, which represents, in hours, 56% of the total drill normal time. Such promising results can lead to very significant improvements in identifying and extracting drilling events within DDRs. To access the presentation click the link on the right. To read the full paper click here

Teachers’ roles in online learning communities: a case study from the digitally underdeveloped country

ABSTRACT In order to prevent the interruption in the education process during the first wave of the Covid-19 pandemic, which would inevitably lead to serious socio-economic consequences, the universities from low-income countries, including those from Bosnia and Herzegovina, shifted to “emergency remote teaching,” a type of teaching that is different from high-quality online education by its name and implementation method. A case study has been designed to research the role of teachers in creating an efficient learning community in the cases of emergency remote teaching. The aim of this study was to assess the perception of students with regard to the teachers’ role in “emergency remote teaching.” The process of collecting data from students started two weeks before the end of the term. The research results suggest that the crucial role of teachers in building learning communities in postwar and low-income countries is to advocate and implement the changes in their education systems, as well as the changes in understanding the concept of social responsibility that should lead to the transformation of “emergency remote teaching” model into pre-planned online learning in near future.

Greater interruption of visual processing and memory encoding by visceral than somatic pain in healthy volunteers – An fMRI study

Visceral pain is regarded as more salient than somatic pain. It has greater affective and emotional components, i.e., it elicits higher levels of pain-related fear and is perceived as more unpleasant than somatic pain. In this fMRI study, we examined the neural effects of painful visceral as compared to painful somatic stimulation on visual processing and memory encoding in a visual categorization and surprise recognition task in healthy volunteers. During the categorization task, participants received either rectal distensions or heat stimuli applied to the forearm, with stimuli being individually matched for unpleasantness. Behaviorally, visceral pain reduced memory encoding as compared to somatic pain (Kleine-Borgmann et al., 2021). Imaging analyses now revealed that visceral pain was associated with reduced activity (i.e., greater pain-related interruption) in neural areas typically involved in visual processing and memory encoding. These include the parahippocampal gyrus, fusiform gyrus, striatum, occipital cortex, insula, and the amygdala. Moreover, reduced engagement of the lateral occipital complex during visual categorization under visceral pain was associated with higher visceral pain-related fear. These findings obtained in healthy volunteers shed light on the neural circuitry underlying the interruptive effect of visceral pain and pave the way for future studies in patient samples.

Advanced Fault-Tolerant Anti-Surge Control System of Centrifugal Compressors for Sensor and Actuator Faults.

Faults frequently occur in the sensors and actuators of process machines to cause shutdown and process interruption, thereby creating costly production loss. centrifugal compressors (CCs) are the most used equipment in process industries such as oil and gas, petrochemicals, and fertilizers. A compressor control system called an anti-surge control (ASC) system based on many critical sensors and actuators is used for the safe operation of CCs. In this paper, an advanced active fault-tolerant control system (AFTCS) has been proposed for sensor and actuator faults of the anti-surge control system of a centrifugal compressor. The AFTCS has been built with a dedicated fault detection and isolation (FDI) unit to detect and isolate the faulty part as well as replace the faulty value with the virtual redundant value from the observer model running in parallel with the other healthy sensors. The analytical redundancy is developed from the mathematical modeling of the sensors to provide estimated values to the controller in case the actual sensor fails. Dual hardware redundancy has been proposed for the anti-surge valve (ASV). The simulation results of the proposed Fault-tolerant control (FTC) for the ASC system in the experimentally validated CC HYSYS model reveal that the system continued to operate in the event of faults in the sensors and actuators maintaining system stability. The proposed FTC for the ASC system is novel in the literature and significant for the process industries to design a highly reliable compressor control system that would continue operation despite faults in the sensors and actuators, hence preventing costly production loss.

Extracting events from Daily Drilling Reports using Fuzzy String Matching

Continuous monitoring of oil drilling operations reduces process interruptions and equipment failure. It also contributes to the development of Key Performance Indicators, which leads to more efficient resource management. Daily Drilling Reports (DDRs) have long been the primary way of recording noticeable events, such as stuck pipe. DDRs came to constitute a valuable information base for most oil drilling companies. However, the task of extracting knowledge from DDRs can be costly and time-consuming. This work proposes an approach to recognise drilling events in DDRs using a rule-based language processing method called Fuzzy String Matching (FSM). We applied the FSM algorithm to search for a set of predefined keywords and key phrases to extract possible Invisible Lost Time (ILT) events from DDRs that may indicate risks or low operational efficiency. The fuzzy part of the algorithm allows the identification of terms or expressions that match the pre-established ones approximately rather than exactly, accounting for typos and different suffixes or prefixes. The proposed solution was applied on a data set of 392 real-world DDR records from a drilling company using a set of six ILT event’s key phrases annotated by Subject Matter Specialists. This process can be readily replicated to other events. The results show that in 116 reports tagged as normal, 92 records were identified as possible ILT events, which represents, in hours, 56% of the total drill normal time. Such promising results can lead to very significant improvements in identifying and extracting drilling events within DDRs.

Polycystin 1 ciliary localization is regulated by its aGPCR activity

Autosomal dominant polycystic kidney disease (ADPKD) develops due to loss of function mutations in the PKD1 and PKD2 genes, which encode PC1 and PC2, respectively. PC1 is a 460kD multi‐spanning membrane protein that undergoes multiple proteolytic cleavages, at least two of which release C‐terminal fragments. Polycystin 1 and Polycystin 2 both prominently localize to the primary cilium where they contribute to cellular mechano‐sensation and also form a cation‐permeable heterotetrameric channel that may contribute to Ca2+ flux into the cilia. Recent studies demonstrate that PC1 can function as an atypical adhesion GPCR that is activated by Wnt ligands. Wnt ligand binding leads to dissociation of the PC1 extracellular N terminal fragment and allows the PC1 receptor function to be activated by a tethered agonist peptide that resides at the N terminus of the PC1 transmembrane domains.Here we report that Polycystin 1 cilia and cell surface localization is regulated by its activity status. We demonstrate that a constitutively active form of the Polycystin 1 protein is absent from the primary cilia whereas a constitutively inactive version of the PC1 protein that lacks its tethered agonist peptide resides in the primary cilia. Moreover, we show that interruption of the cellular receptor desensitization process by β‐arrestin inhibition permits the constitutively active PC1 construct to accumulate in the cilium. We also studied the surface localization of the full length PC1 and found that extended Wnt9b ligand treatment or mechanical stimulation both lead to reduced quantity of the full length PC1 at the cell surface and in the primary cilium, a process that can be disrupted by inhibition of β‐arrestin. In vivo, we find that reduction of the luminal flow in renal tubules by ureter obstruction leads to accumulation of the PC1 in the primary cilia of the tubule cells.Taken together, our data suggest that PC1 surface trafficking is regulated by receptor‐activating stimuli including ligand binding and mechanical stress and, similar to the regulation of aGPCR receptors, is subject to an activity‐dependent receptor desensitization process. Our findings indicate that the aGPCR receptor‐like properties of Polycystin 1 offer new insights into this protein’s physiological function and the regulation of its trafficking. Understanding these processes may suggest targets for the development of new therapeutic interventions for ADPKD.

Dual-ratiometric fluorescence probe for viscosity and hypochlorite based on AIEgen with mitochondria-targeting ability.

Viscous microenvironments are ubiquitous in living organisms. An oxidative stress attack could cause the fluctuation of lymph or blood viscosity, which is closely related to many common diseases. However, the dual-function detection of reactive oxygen species and viscosity is still ineffective due to design defects. Herein, by rational linking a propeller-shaped triphenylamine rotator and a rigid planar anthracene, we report the first dual-ratiometric-response probe for ClO- and viscosity detection. The probe itself shows weak fluorescence background in low-viscous solution or at non-aggregate state, which can largely switch on its blue (414nm) and yellow fluorescence (600nm) respectively in response to ClO- and viscosity. Their sensing mechanisms were elucidated through the interruption of FRET and TICT processes for ClO- and viscosity detection, respectively. In addition to its mitochondria targeting ability, TPP-AN was employed for mitochondrial viscosity and ClO- imaging in HeLa cells, providing a potentially useful probe for clinical assays.

Effect of Combined Dexmedetomidine and Sevoflurane Sedation on Sleep Homeostasis in Sprague Dawley Rat

BackgroundThe effect of continuous long‐term administration of sedative‐hypnotics ‐ as occurs in the intensive and perioperative care ‐ on sleep homeostasis is not completely understood. Ongoing studies in our laboratory have shown that sedation produced by continuous infusion (8 h) of dexmedetomidine (DEX, 0.5‐1.0 μg/kg/min) increased wake state (WAKE), decreased slow‐wave sleep (SWS) and reduced rapid eye movement sleep (REMS) in the post‐sedation period, while sedation with continuous (8 h) sevoflurane (SEVO, 2.5‐3.0%) administration did not affect WAKE or SWS but increased post‐sedation REMS [1]. In the current study, to investigate the possibility of a synergistic effect of DEX and SEVO on sleep homeostasis, we maintained the rats on sedation (8 h) produced by simultaneous administration of DEX and SEVO and quantified the effect on post‐sedation sleep‐wake states (48 h).MethodsAdult male and female Sprague Dawley rats (n=4) were surgically prepared for sleep‐wake recordings and a catheter was chronically positioned in the jugular vein for DEX or lactated Ringer’s (control) infusion. Each rat received 8 h of continuous (10:00 am – 6:00 pm) combined administration of SEVO (0.5‐1.0%) and intravenous DEX (0.1 ug/kg/min), and lactated Ringer’s on a different day with inter‐experiment interval of at least 5‐7 days. The SEVO and DEX concentrations were titrated to maintain loss of righting reflex, which is a surrogate for loss of consciousness in rodents. Post‐sedation sleep‐wake data were recorded for 48 h and manually scored in 4 s epochs into WAKE, SWS, and REMS.ResultsThe total time (in minutes) spent in WAKE during the first 12 h post‐sedation period was comparable to that observed after lactated Ringer’s infusion (mean ± standard deviation: 87.78 ± 13.58 after lactated Ringer’s vs 98.59 ± 11.71 after sedation). Similar trend was observed for SWS (mean ± standard deviation: 65.95 ± 10.37 after lactated Ringer’s vs 75.08 ± 12.60 after sedation) while REMS was reduced by 78.68% during the first 12 h post‐sedation period as compared to that observed after lactated Ringer’s infusion (mean ± standard deviation: 25.36 ± 6.715 after lactated Ringer’s vs 5.41 ± 3.30 after sedation). The time spent in WAKE, SWS, and REMS during the remaining 36 h of post‐sedation period was comparable to that after lactated Ringer’s infusion. Compared to the individual administration of DEX and SEVO, as reported previously from our lab [1], combined administration of SEVO and DEX in the current study required 5‐10 times less dose to maintain the loss of righting reflex.ConclusionThe effect of combined sedation with SEVO and DEX are distinct from the effects after individual administration of these sedatives, suggesting minimal interruption of sleep homeostatic processes leading to a sleep profile that more closely mirrors the natural sleep‐wake states.References Parkar A, Liu T, Fryzel A, Groenhout T, Mashour GA and Pal D (2020) Effect of prolonged sedation with dexmedetomidine, midazolam, propofol, or sevoflurane on sleep homeostasis in rat. J Neurosurgical Anesthesiology, Vol 32, No 4, Page 403, Abstract no SNACC‐387.

Cancelled Time

The COVID-19 pandemic has affected contemporary performing arts in several ways, not least in the form of mass cancellations of performances and production processes in many countries around the world in the year 2020. In this article, I propose to view the interruption of performative processes as the event of a time of cancellation: the transition of unrealised futures into the past, where they persist as past futures and reservoirs of what could have been. The time of cancellation from performance is juxtaposed with the cancellation of time from the politics or anti-politics of proto-fascism during the pandemic. Proto-fascist tendencies are analysed in terms of their desire for a suicidal state which signifies the will for total sovereignty over life and death and time in the moment of self-destruction. In proposing to view the time of cancellation and the cancellation of time as a political constellation of cancelled time, I argue for the politicisation of past futures from performance as a counter-measure to the destruction of the future in proto-fascism.