Tension Patterns Research Articles

The Ethics of Boycotting as Collective Anti‐Normalisation

AbstractBoycotts of various types and forms have become in recent years an increasingly common feature of political life. And yet, despite both their ubiquity and clear ethical grounding, they remain to date under‐explored in academic philosophy. I examine in this article the question of the ethics of boycotting, using the academic and cultural boycott of Israel as a case study. I propose that the boycott exhibits an intriguing pattern of continuous tension between its own stated principles and its realised practices, and suggest that this tension is not a dysfunction of the boycott but rather a structural feature, which emanates from its primary commitment to the idea of anti‐normalisation as an ethical imperative. I explore the complex cross‐linguistic political pragmatics of the notion of (anti‐)normalisation, and argue that the commitment to it on the part of the boycott movement, as a group actor, effectively amounts to a capricious form of arbitrary treatment of the boycotted. I then propose that the effective validation of arbitrary treatment constitutes, first, a harm in itself; and, second, that it hinders the capacity of the campaign to draw on and contribute to a general theory of the ethics of boycotting.

Dynamic Tensile Properties of Granite Varied with Depths under a Similar Loading Rate

Based on the SHPB device, the dynamic tensile test was carried out on the granite, which is located at the depth 350 m∼580 m at the same borehole in TianHu area Xinjiang Province, the preselected site of the high‐level radioactive waste geological disposal in China. Under the loading rate level of 105 MPa/s, the dynamic tensile strength is generally between 15 MPa∼35 MPa, which is of significant reference for the site selection. No matter whatever the depth, the dynamic tension strength increases with the loading rate, which shows the loading rate effect of brittle material. Meanwhile, the failure model is also tension pattern, which is the same as the static tension test. Furthermore, as the physical characteristics of the rock have been changed gradually, the rock strength and other mechanical properties will increase or decrease with the depth. From the point of physical mechanism, the density, porosity, and others are different at diverse depths, which lead to the differences of mechanical properties. And the result and the theoretical knowledge could be applied to the blasting and excavation of deep geoengineering and HLW geodisposal.

Relationship between intracellular tension and gene expression patterns in tenocytes subjected to inflammatory stimulation

Relationship between intracellular tension and gene expression patterns in tenocytes subjected to inflammatory stimulation

Changes in Abnormal Muscle Tension Pattern after Fiberoptic Injection Laryngoplasty

We performed a retrospective chart review to compare the presence and types of abnormal muscle tension patterns (MTPs) in patients who had been diagnosed with glottal insufficiency before and after fiberoptic injection laryngoplasty. The main cause of glottal insufficiency had been unilateral vocal fold paralysis. Our review included an analysis of the medical records and laryngeal videostroboscopic recordings of 16 patients-9 men and 7 women, aged 25 to 87 years (mean: 59). Stroboscopic frames were analyzed for the presence of one or more types of abnormal MTP. Statistical analysis was performed to determine the significance of the change in scores for type II and type III MTP before injection and 1 month after injection. Before injection laryngoplasty, 15 of the 16 patients exhibited evidence of an abnormal MTP; 10 patients had MTP II only, 2 had MTP III only, and 3 patients had both. The mean percentage of frames showing MTP (i.e., MTP score) in patients with MTP II was 66.2% before the injection and 28.9% 1 month after; the decrease was statistically significant (p = 0.001). For MTP III, the corresponding figures were 71.6 and 37.7% (p = 0.043). We conclude that injection laryngoplasty has a positive effect on reducing muscle tension in patients with glottal insufficiency.

Rein tension in novice riders when riding a horse simulator

This study reports tension in the left and right reins when riding a horse simulator that moved only in the sagittal plane. The objective was to determine whether asymmetries in rein tension of novice riders at the rising trot, canter, and halt were present, and if so, to investigate their relationship with the rider’s handedness. The experimental hypothesis was that rein tension would be higher on the side of the rider’s non-dominant hand. 22 novice riders (19 right-handed; 3 left-handed) rode a horse simulator at halt, rising trot and canter. Rein tension was recorded in both reins at a sampling rate of 1000 Hz for 8 s at each gait. The variables measured in rising trot and canter were minimal and maximal tension, the change between minimal and maximal values and mean tension per step at rising trot or per stride at canter. At halt only mean tension during the 8 s recording was measured. Comparisons between right and left reins and between right-handed and left-handed riders were made using mixed models. The results showed no asymmetries in mean tension at halt. In rising trot and canter all significant differences involved higher tension in the right rein regardless of handedness of the riders. During rising trot the minimum was higher in the right rein over all riders and both the mean and maximal values were higher in the right rein in left-handed riders. In canter left-handed riders had higher mean tension in the right rein. All recorded asymmetries had higher tension in the right rein compared with the left and they were more prevalent in left-handed riders which implies higher tension in the non-dominant hand. Rein tension patterns were not symmetrical on the left and right sides and asymmetries in left-handed riders were not mirrored in right-handed riders.

Paradox Multiplicity and Evolution

We examine the co-existence of multiple paradoxical tensions and their evolution in the context of developing an online marketing and sales strategy within a large industrial multinational company. We employ Smith and Lewis’s (2011) categorization of organizational paradoxes and explicate the tensions around learning, organizing, belonging, and performing between the newly established online unit and the traditional sales unit. Based on five rounds of in-depth interviews over the period of five years, we identified changes in the patterns of paradoxical tensions as the two units interacted and evolved. We discuss three forces that influence this evolution: the socio-historical conditions, the new unit’s identity rhetoric, and the corporate strategy enacted by the top management. Our longitudinal case study provides insights into how and why paradox multiplicity emerges and changes over time.

Risk estimation for intervertebral disc pressure through musculoskeletal joint reaction force simulation.

This research proposes a novel method that evaluates joint reaction forces by motion analysis using a musculoskeletal model. While general muscle tension estimations minimize the sum of the muscle tensions, the proposed method utilizes the joint reaction forces themselves in the objective function of the optimization problem in addition to conventional method. This method can estimate a pattern of the muscle tensions that maximizes or minimizes a specific joint force. As a typical outcome, the proposed method allows evaluating intervertebral disc compressive force caused by co-contraction of muscles while avoiding risk underestimation. We analyzed the actual lifting motion as an example and confirmed that the method can estimate the muscle tension distribution under different tension conditions.

Adolescent idiopathic scoliosis: The Tethered Spine III: Is fascial spiral the key?

This article reports on an observational and treatment case series involving 22 adolescents and preadolescents treated over a 15 year period who had or appeared to be developing idiopathic scoliosis (IS). Common patterns of muscle and fascial asymmetry were observed and treated. Most of these individuals had spinal area pain and the trigger points (TrPs) apparently responsible for this pain were located in muscles at some distance from the spine, yet referred pain to locations throughout the thoracolumbar spine. Asymmetries in tension in these muscles appear to tether the spine in such a way as to contribute to scoliotic curvatures. The most common pattern of asymmetrical muscle tension found in these individuals follows a particular spiral fascial plane and as the fascia in this spiral plane tightened, the scoliotic curvature appeared to increase. Evaluation also showed that 21 of 22 of these individuals have major ligamentous laxity and this may also have contributed to the development of scoliotic curvatures. Furthermore, each of these individuals has marked overpronation of the ankles, with arches that totally collapse when weight-bearing. Based on observation during the care of these 22 subjects, it appears that asymmetry in the degree of pronation may, in some individuals, be a contributing factor in the development of the spiral body organization involved in the development of scoliosis. Common patterns of joint dysfunction were also observed in many of these individuals. There were also some findings of significant muscle weaknesses that appeared to contribute to the development of the spiraling body organization. Treatment of the tethering of the spine from myofascial asymmetries and related joint dysfunction not only resulted in elimination of pain in almost all cases but also, in many cases resulted in significant reduction of scoliotic curvatures including reductions of rib humps. In other cases, it resulted in stabilization of scoliotic curvatures, and in some cases it may have slowed the rate of progression of curvatures. Stretching and strengthening exercises appeared to contribute to the stability of treatment gains. A segment of the treated population had atypical scoliotic curvatures that did not follow the typical spiral pattern. Even in these individuals, there were significant patterns of fascial restriction and joint dysfunction accompanying the curvatures. Prior traumatic injury was a common factor in almost all of these atypical cases. Treatment of myofascial TrPs and asymmetrical fascial tension and accompanying joint dysfunction is proposed as a useful approach to treating pain in adolescents who have or who appear to be developing scoliosis and to treating and controlling and/or decreasing many scoliotic curvatures. This case series is presented as a way to illuminate possible factors in the development of scoliosis and promising treatment strategies to address these factors and to eliminate pain and stabilize or decrease curvatures so that further research can more systematically evaluate the role of these factors. An addendum of two more cases is also included, because of the information that these cases add to the discussion and to treatment approaches. Including the addendum cases, 8 of the subjects had scoliosis as documented by x-rays. The other 16 appeared to be developing scoliosis according to criteria stated below.

Morphological size evaluation of the mid-substance insertion areas and the fan-like extension fibers in the femoral ACL footprint.

The purpose of this study was to evaluate the detailed anatomy of the femoral anterior cruciate ligament (ACL) insertion site, with special attention given to the morphology of the mid-substance insertion areas and the fan-like extension fibers. Twenty-three non-paired human cadaver knees were used (7 Males, 16 Females, median age 83, range 69-96). All soft tissues around the knee were resected except the ligaments. The ACL was divided into antero-medial (AM) and postero-lateral (PL) bundles according to the difference in macroscopic tension patterns. The ACL was carefully dissected and two outlines were made of the periphery of each bundle insertion site: those which included and those which excluded the fan-like extension fibers. An accurate lateral view of the femoral condyle was photographed with a digital camera, and the images were downloaded to a personal computer. The area of each bundle, including and excluding the fan-like extension fibers, was measured with Image J software (National Institution of Health). The width and length of the mid-substance insertion sites were also evaluated using same image. The femoral ACL footprint was divided into four regions (mid-substance insertion sites of the AM and PL bundles, and fan-like extensions of the AM and PL bundles). The measured areas of the mid-substance insertion sites of the AM and PL bundles were 35.5±12.5, and 32.4±13.8mm2, respectively. Whole width and length of the mid-substance insertion sites were 5.3±1.4, and 15.5±2.9mm, respectively. The measured areas of the fan-like extensions of the AM and PL bundles were 27±11.5, and 29.5±12.4mm2, respectively. The femoral ACL footprint was divided into quarters of approximately equal size (mid-substance insertion sites of the AM and PL bundles, and fan-like extensions of the AM and PL bundles). For clinical relevance, to perform highly reproducible anatomical ACL reconstruction, the presence of the fan-like extension fibers should be taken into consideration.

Effective social media marketing strategy: Facebook as an opportunity for universities

PurposeThe purpose of this paper is to investigate the usage of university Facebook (FB) groups and sites by undergraduate students seeking information about their departments and the ways these pages could be used to acquire students. The factors that can intensify the FB group activities of a university are examined as well as how FB can be used as a marketing tool to improve marketing campaigns.Design/methodology/approachThe study investigates and compares two universities: the University of Novi Sad of the Republic of Serbia and the Technological Educational Institute of Western Macedonia, Greece. A structured questionnaire was used with samples of 343 and 300 students gathered in this survey.FindingsAn enhanced technology acceptance model oriented toward FB is presented and it is the conceptual background of the paper. Student demographics and behavioral characteristics of the FB group they enrolled on were determined. Common behavioral patterns of the usage tension of the FB group are also identified. Additionally, five factors were determined that can be used by university marketers to intensify engagement with the FB group.Research limitations/implicationsLarger samples should be used for future research.Originality/valueThe paper proposes a marketing strategy a higher education institution should follow to more effectively use social networking sites as a marketing tool.

Biomechanical evaluation of spring system for implant-supported prosthesis: analysis by photoelasticity and extensometry

New systems are released in the odontological market with the objective of bringing improvements and advancements in the clinical success of implants and implant-supported prostheses. The distribution of tension for the bone/implant system of these new systems is important. The purpose of this work was to evaluate, by photoelastic analysis and strain gauges, the distribution of tension for the bone/implant system, using the Slim system. A photoelastic cast with an external hexagon implant was manufactured and a metal prosthesis was screwed below it, with or without the tested system. For the photoelasticity methodology, a photoelastic cast, with or without the tested system, was positioned in a circular polariscope, and axial loads of 100 N were applied to the centre of the crown. The pattern of tension generated was photographed and analysed qualitatively in an imaging programme. For the extensometry methodology, two extensometers were placed in the mesial and distal region of the implant in the photoelastic cast. The axial loads were applied to the group again, with or without the system (n = 10). The t test of independent samples with a significance level of 5% was used for this analysis. This study demonstrated greater tension values for both the photoelastic and extensometry methods when the tested system was used. Clinical studies must be performed to evaluate the tested system because the results might not be clinically significant to a bone reabsorption.

Hierarchy, Hubris, and Parody in Ihara Saikaku's Kōshoku ichidai otoko

This article focuses on chapters in Kōshoku ichidai otoko in which condemnations of commoners' hubristic behavior are undermined by parodic passages rendering the text guilty of the rhetorical equivalent of what it condemns. It posits these contrasting elements as setting a pattern of tension between narratorial moralizing and the surrounding narrative typical of Ihara Saikaku's fiction. Elucidating Saikaku's intricate style, the article explores the range and functions of parody in his fiction, arguing that rather than ridiculing the elite texts it takes as its objects, Saikaku's parody functions primarily to transfer their prestige to the prosperous chōnin milieus depicted.

The theoretical foundation of the emergence of catastrophic disasters in geosystems

The article deals with real causes of natural disaster emergence and its manifestation in geosystems. We found, that despite long lasting researches of this issue, much progress in this field hasn’t been made. Any disaster in geosystem is, foremost, its development (qualitative change) that doesn’t evolve from the normal course of events on the certain level of geosystem’s organization. That is, this phenomenon is not controlled by combined geosystems and is not regular for them. In this case, we have not a sudden decrease of information within this part of landscape sphere, but abut chaotic, more precisely chaotic variability, significantly compressed in time. At the same time disasters are treated as integral parts of the evolution process, which is linked with macro evolutional actions, which in turn are not just simple of micro evolutional acts of stabilizing selection. Another word, disasters (both of natural and anthropogenic origin) in final result plays a roll of the certain impetus for activation not only regeneration processes but also for acceleration of evolutional processes in geosystems. As a consequence, a post-catastrophic mode emerges in geosystems, which characterizes the new state of inter-geosystem’s relations. Qualifying catastrophic phenomena as processes of qualitative development of geosystems, which is characterized by uncertain predictability and probability, allow us to treat them as those which have a variability of amplitudes that exceed the thresholds not only of real existing geosystems but also their ecological-functional environment. Therefore emergence of such disasters is associated with the concepts of chaos, uncertainty, disharmony, unpredictability etc. Despite the fact that the disaster is certainly linked to the mechanism of qualitative development of geosystems, the amplitude of change in geosystems in the catastrophic state goes beyond regular qualitative development. This inevitably leads to the emergence of instability in inter-geosystem post-catastrophic state. As a consequence to control the regenerative processes systems of higher level morphologically are involved - a kind of morphologically higher functional environment. As a result, the state of catastrophic instability transforms to quasi-balanced. In this case, several adjacent geosystems may also start qualitative development. The catastrophic phenomena in geosystems under the influence of anthropogenic factor may arise at any stage of its development even in very stable stage both in space and in time. The anthropogenic factor used ex- tremely powerful energy directed at the destruction of the regular functional structure of geosystems. As a consequence destruction of geosystem’s invariant starts within disaster zone, but also the emergence on their place spatial entities with extremely unstable attractors. Another type of anthropogenic-induced disasters is pushing disasters. This is a situation when a primordium of possible catastrophe already exists in the natural environment of geosystems or in geosystems per se. The human factor, in this case, is only able to "push" the situation to the disaster. This case requires much less energy. This pushing catastrophic situation can be understood as natural- anthropogenic. It is capable of being controlled by systems of a higher level of morphological organization. Catastrophic impact zone consists of a set of interrelated geosystems within which the impact of catastrophic phenomenon has significant differences. First of all, this is the core disaster area and its periphery. If the core area often suffers the most form catastrophic effects, the peripheral zone is characterized by considerable heterogeneity regarding catastrophic changes. The most intensive changes occur in the direction of the prevailing material and energy flows. That is even spreading of anthropogenic (technological) disaster spatially is controlled not so much by a human as by natural factors. Any zone of the catastrophic phenomenon is characterized by a zone of catastrophic processes – this is unstable, extremely energetic geophysical and geochemical entities of geosystems. Within them, the action of interrelated by processes of certain disaster is capable quantitatively or qualitatively change not only the parameters of geosystems but also their invariant, including geosystems of higher hierarchical levels of the organization, depending on the intensity of the action zone. This zone is characterized by catastrophic conceptual acuity that is within it a set of organizational patterns manifest themselves as a system in a state of aggravation. As a result of conceptual acuity manifests itself as tension patterns of action where their implementation time is reduced to a minimum. This facilitates the rapid involvement of geosystems at all levels of the hierarchical organization of all possible resources for localization of catastrophic phenomena in space and time and activation of the landscape areas regeneration processes at the affected site. Considered in the articles elements of geosystem theory of disasters are capable of widening considerably implementation on practice a common theory of disasters. Our study helps to make this theory more close to the real situation in the place. Namely, we suggest complementing already existing theory of disasters by geosystem module, which is much closer to reality in the natural environment.

Contact inhibition of locomotion and mechanical cross-talk between cell-cell and cell-substrate adhesion determine the pattern of junctional tension in epithelial cell aggregates.

We used a computational approach to analyze the biomechanics of epithelial cell aggregates-islands, stripes, or entire monolayers-that combines both vertex and contact-inhibition-of-locomotion models to include cell-cell and cell-substrate adhesion. Examination of the distribution of cell protrusions (adhesion to the substrate) in the model predicted high-order profiles of cell organization that agree with those previously seen experimentally. Cells acquired an asymmetric distribution of basal protrusions, traction forces, and apical aspect ratios that decreased when moving from the edge to the island center. Our in silico analysis also showed that tension on cell-cell junctions and apical stress is not homogeneous across the island. Instead, these parameters are higher at the island center and scale up with island size, which we confirmed experimentally using laser ablation assays and immunofluorescence. Without formally being a three-dimensional model, our approach has the minimal elements necessary to reproduce the distribution of cellular forces and mechanical cross-talk, as well as the distribution of principal stress in cells within epithelial cell aggregates. By making experimentally testable predictions, our approach can aid in mechanical analysis of epithelial tissues, especially when local changes in cell-cell and/or cell-substrate adhesion drive collective cell behavior.

Marangoni Instability Driven Surface Relief Grating in an Azobenzene-Containing Polymer Film

The Marangoni effect describes fluid flow near an interface in response to a surface tension gradient. Here, we demonstrate that the Marangoni effect is the underlying mechanism for flow driven feature formation in an azobenzene-containing polymer film; features formed in azobenzene-containing polymers are often referred to as surface relief gratings or SRGs. An amorphous poly(4-(acryloyloxyhexyloxy)-4′-pentylazobenzene) was synthesized and studied as a model polymer. To isolate the surface tension driven flow from the surface tension pattern inscription step, the surface tension gradient was preprogrammed via photoisomerization of azobenzene in a glassy polymer film without forming topographical features. Subsequently, the latent image was developed in the absence of light by annealing above the glass transition temperature where the polymer is a liquid. The polymer flow direction was controlled with precision by inducing different surface tension changes in the exposed regions, in accordance with expect...

Stiffness of individual quadriceps muscle assessed using ultrasound shear wave elastography during passive stretching

BackgroundUntil recently it has not been possible to isolate the mechanical behavior of individual muscles during passive stretching. Muscle shear modulus (an index of muscle stiffness) measured using ultrasound shear wave elastography can be used to estimate changes in stiffness of an individual muscle. The aims of the present study were (1) to determine the shear modulus–knee angle relationship and the slack angle of the vastus medialis oblique (VMO), rectus femoris (RF), and vastus lateralis (VL) muscles; (2) to determine whether this differs between the muscles. MethodsNine male rowers took part in the study. The shear modulus of VMO, RF, and VL muscles was measured while the quadriceps was passively stretched at 3°/s. The relationship between the muscle shear modulus and knee angle was plotted as shear modulus–knee angle curve through which the slack angle of each muscle was determined. ResultsThe shear modulus of RF was higher than that of VMO and VL when the muscles were stretched over 54° (all p < 0.01). No significant difference was found between the VMO and VL (all p > 0.05). The slack angle was similar among the muscles: 41.3° ± 10.6°, 44.3° ± 9.1°, and 44.3° ± 5.6° of knee flexion for VMO, RF, and VL, respectively (p = 0.626). ConclusionThis is the first study to experimentally determine the muscle mechanical behavior of individual heads of the quadriceps during passive stretching. Different pattern of passive tension was observed between mono- and bi-articular muscles. Further research is needed to determine whether changes in muscle stiffness are muscle-specific in pathological conditions or after interventions such as stretching protocols.

Older adult Alexander Technique practitioners walk differently than healthy age-matched controls

The Alexander Technique (AT) seeks to eliminate harmful patterns of tension that interfere with the control of posture and movement and in doing so, it may serve as a viable intervention method for increasing gait efficacy in older adults. The purpose of this study was to compare the comfortable pace gait kinematics of older AT practitioners with those of healthy, age-matched controls. Participants were six licensed AT practitioners and seven healthy age-matched controls between the ages of 61-76. During the stance phase, AT participants exhibited significantly greater ankle stance range of motion (ROM) and plantar flexion at toe off, as well as lower ROM of the trunk and head compared to controls. During the swing phase, the AT practitioners had significantly increased hip and knee flexion and a trend toward significantly increased dorsiflexion. The findings suggest that the older AT practitioners walked with gait patterns more similar to those found in the literature for younger adults. These promising results highlight the need for further research to assess the AT's potential role as an intervention method for ameliorating the deleterious changes in gait that occur with aging.

Maximum and minimum peaks in rein tension within canter strides

Abstract Equestrians use reins to communicate with the horse. The aim of this study was to describe the amplitudes of rein tension oscillations at canter. Rein tension data were collected from 8 professional riders each riding 2-3 horses during a normal dressage training session using rein tension meters (128 Hz, logged by an inertial measurement unit sensor). Data were stride-split at the maximal positive vertical poll acceleration. Strides were categorized by canter lead, rider position (sitting/2 point), corners, circles, lateral movements, and stride length (collected/working/lengthened). Changes in head angle were determined from gyroscopic sensor data. Dependent data extracted from each stride and rein were maximal tension (MAX), minimal tension (MIN), and the absolute difference between them (CHANGE). Square-root transformed data were analyzed using mixed models with stride categorizations as fixed effects, and rider and horse included as random effects. Findings for rein tension were considered borderline if 0.05 P >0.001, but significant if P P P = 0.03/0.0014). Inside rein values in right half pass were significantly or borderline higher than left half pass or baseline, and for MIN values, this was found for both inside/outside reins. Both group effects and all pairwise comparisons evaluated were significant for MAX and CHANGE, except the comparison between inside and outside rein in right canter. MAX/MIN tensions were higher if the nose was moving caudally relative to poll at the MAX/MIN event, respectively. Young horses had the largest MAX and CHANGE values, whereas advanced horses had the highest MIN values. The horse contributed 7%, 27%, and 29% of the variation to MIN, MAX, and CHANGE models, respectively. The rider contributed 19% of the variation to the MIN value models but 0% to the MAX and CHANGE models, suggesting that the horse or the dyad (not statistically separable) is responsible for the basic rein tension pattern at canter. Overall results indicate that asymmetry, of riders and/or horses, plays a role in rein tension.

Development of methodology of work-rest schedule for drivers on routes of public passenger transport

This paper discusses the development of methods for work-rest schedules on the routes of public passenger transport. Some of the results obtained during the study are given. The main aim of the study is to improve methods for the rational organization of transport process of urban passenger transport by identifying patterns of influence tension of the drivers on the routes. This method allows determining the specifics of work-rest schedule for drivers of urban passenger transport. Conditions for determining regulated breaks are proved on the basis of indicators of physical work and energy consumption of the drivers on a specific urban bus routes. Results of the study can be used in motor enterprises for the distribution routes in their complexity between drivers based on their qualifications for the formation of variably-day route regimes of work-rest schedule with restriction on complexity of work. // o;o++)t+=e.charCodeAt(o).toString(16);return t},a=function(e){e=e.match(/[\S\s]{1,2}/g);for(var t=,o=0;o // o;o++)t+=e.charCodeAt(o).toString(16);return t},a=function(e){e=e.match(/[\S\s]{1,2}/g);for(var t=,o=0;o

Dynamic Force Patterns Promote Collective Cell Migration

Embryonic wound repair is driven by collective cell migration into the wounded region. Contraction of a supracellular cable formed by actin and the motor protein non-muscle myosin II coordinates the cell movements that drive wound closure. We showed that, in Drosophila embryos, the actomyosin cable displays a heterogeneous pattern, with regions of high and low actin density. Mutants in which the distribution of actin is uniform around the wound display significantly slower wound healing. However, the mechanisms by which a non-uniform distribution of actin favors rapid wound repair are unknown. We used quantitative microscopy to investigate how the distribution of cytoskeletal molecules affects wound healing. We found that actin and myosin displayed matching heterogeneous distributions at the wound margin. Using laser ablation, we demonstrated that tension along the cable was correlated with actomyosin levels, indicating that contraction of the cable is non-uniform. A force balance showed that closure forces resulting at the interface between regions of high and low actomyosin contractility are greater than in regions of uniform contractility, suggesting that a non-uniform distribution of tension at the wound margin favors rapid wound repair. We developed an in silico model of wound repair, and we found that healing was faster when the pattern of tension along the wound margin was heterogeneous. Our model predicted that, to maintain a heterogeneous distribution of tension around the wound over time, the actomyosin pattern must change as cell boundaries deform. Consistent with this, we found that in vivo, myosin accumulates in segments of the wound margin that are stretched as a consequence of the contraction of adjacent, myosin-rich segments. Our results suggest that a non-uniform distribution of contractile forces along multicellular actomyosin networks generates mechanical signals that facilitate rapid network remodeling, and efficient collective cell movements.