Temporal Access Research Articles

Superficial temporal artery access for transfemoral or transbrachial carotid artery stenting in selected patients considered unfit for carotid surgery.

Transfemoral (TFCAS) or transbrachial carotid artery stenting (TBCAS) is an alternative to carotid endarterectomy (CEA) for treatment of high-grade internal carotid artery (ICA) stenosis. A difficult aortic arch (i.e., type III or bovine arch) and/or a tortuous/stenosed common carotid artery (CCA) are potential reasons for technical failure. This study explores the benefits of superficial temporal artery access (STAA) in aiding TFCAS or TBCAS for patients with challenging anatomical conditions. Clinical data of patients who underwent TFCAS or TBCAS using STAA between January and November 2023 were prospectively collected. Demographics, comorbidities, clinical presentation, and imaging studies were reviewed. Primary outcomes included 30-day stroke/death and technical success. Secondary outcomes and causes of failures were assessed. Ten patients (mean age: 74 [range: 66-84] years) with difficult aortic arch (N.=2), CCA tortuosity (N.=2), proximal CCA stenosis (N.=2), previous technical TFCAS failure (N.=2) and aortoiliac occlusive disease (AIOD) (N.=2) underwent TFCAS or TBCAS supported by STAA. Successful STAA was possible in eight patients (six facilitated TFCAS and two TBCAS. after TBCAS occurred TIA). In two cases STAA was not successful. There were no deaths or strokes within 30 days, transient ischemic attack (TIA) occurred in one patient. Follow-up Duplex ultrasound confirmed occlusion of the STA in all patients, without clinical consequences. This prospective study suggests that TFCAS/TBCAS supported by STAA is a viable and safe approach when traditional access methods are ineffective and transcarotid artery stenting in not available or not possible. Despite a 20% technical failure in the current series, this technique may be useful for challenging anatomy of the aortic arch, CCA stenosis and tortuosity, and AIOD. When feasible, STAA may be a promising adjunct to TFCAS/TBCAS.

Time-Controllable Keyword Search Scheme With Efficient Revocation in Mobile E-Health Cloud

Electronic health (e-health) systems may outsource data such as patient e-health records to mobile cloud servers for efficiency gains (e.g., minimizing local storage and computation costs). However, such a move may result in privacy implications in the presence of semi-honest cloud servers. Searchable Encryption (SE) can potentially facilitate privacy-preserving searches based on keywords for encrypted data stored in the mobile cloud, but most existing SE solutions do not support temporal access control (i.e., a mechanism that grants access permissions to users for specified time ranges). Hence, in this paper we design a time-controllable keyword search scheme by using an attribute-based comparable access control. This allows users to match indexes encrypted at specified time intervals. Then, we improve the basic framework to support efficient user revocation using secret sharing. We then formally prove the security of our proposed frameworks against chosen-keyword attack and key collusion attack, as well as achieving keyword secrecy. We also evaluate the performance of our proposed approach using a real-world dataset to demonstrate their practical utility.

Multi-user visible light communication based on computational temporal ghost imaging and code division multiple access with wide field of view and encryption

In this paper, we propose a wide field of view optical encrypted communication based on computational temporal ghost imaging (CTGI) and code division multiple access (CDMA) with a violet series-biased micro-light-emitting diode (micro-LED) in visible light communication (VLC) system. Using CDMA to achieve multi-user communication, and CTGI to achieve secure transmission and improve signal quality, it is demonstrated that the algorithm ensures the transmission of LED under large field of view (FOV), with error-free communication at a wide angle of 120°. In terms of anti-interference encryption, correct demodulation can be achieved under 45% occlusion attack or 80% Gaussian noise attack, with a total of 6.16×10216 possibilities to ensure the security of user's information, providing an approach for the practical application of VLC system.

320 Intraoperative Angiography in Neurosurgery: Temporal Trend, Access Site, and Operative Indication Considerations From a Six-year Institutional Experience

INTRODUCTION: Historically, the transfemoral approach (TFA) has been the most common access site for cerebral intraoperative angiogram (IOA). However, in line with trends in cardiac interventional vascular access preferences, transradial approach (TRA) and transulnar approach (TUA) are gaining popularity due to favorable safety and patient satisfaction outcomes. METHODS: Between July 2016 and December 2022, 317 angiograms were included based on our case definition, comprising 59 TRA cases, 11 TUA cases, 243 TFA, and four transpopliteal cases. Fluoroscopy time, contrast dose, reference air kerma (RAK), and dose area products (DAP) per target vessel catheterized were the primary endpoints of interest. Univariate and multivariate regression analyses were conducted to evaluate predictors of elevated contrast dose and radiation exposure metrics. RESULTS: Contrast dose per vessel catheterized was significantly lower in TRA/TUA cases versus TFA cases (p = 0.001), but radiation exposure metrics did not differ between access site groups. TRA/TUA versus TFA does not significantly predict elevated levels of radiation exposure or contrast dose. Aneurysm cases were associated with significantly lower odds of elevated radiation exposure for all radiation metrics (p < 0.05) whereas AVM cases had higher odds of elevated radiation exposure across all measures (p < 0.01). There was a significant relationship between case number and operative indication over the study period (p < 0.001) with a decrease in the proportion of cases for aneurysm treatment offset by increases in total cases for the management of AVF and AVM. CONCLUSIONS: TRA and TUA are safe and effective access site options for neurointerventional procedures and are increasingly employed. Cases using wrist access may be associated with a lower contrast dosing for patients.

Prospects of drawing on the results of researches are with application of poligrafe in finishing telling

In the presented article general directions and prospects of drawing on the results of researches are exposed with application of lie-detector in the process of finishing telling in criminal realizations. On the basis of the obtained data about economic feasibilities poligrafe and him software the list of spheres in that drawing on the results of such researches in Ukraine of most effective is exposed. The value of results of poligraf expert researches is reflected in the system of proofs. It is marked that except a tactical value in the process of finishing telling, the conclusion of expert can become founding of acceptance of such important decisions an inquisitional judge in realization, as realization of searches, temporal access to the things and documents, realization of complex of secret inquisitional (of criminal investigation) actions, setting of other judicial examinations and others like that.
 Certainly, that the results of judicial examination got in time with the use of poligrafe not only can come forward as basis for the construction of versions during investigation and determination of corresponding near-term inquisitional (of criminal investigation) actions but also included in the complex of proofs that there is base on a prosecution. It is marked that possibilities of judicial psychological examination with the use of methodology of lie-detector research are the unique method of realization of right for any personality to confirm veracity of the testimonies (including alibi), fix the position of collaboration with investigation, to lead to the openness.
 The list of psychical and physiology aspects, that can be set by an expert during application to the lie-detector for persons that is checked for involvement to offence, is presented. To such aspects, the following is attributed: to accentuation of personality or propensity to the feasance of separate types of offences; signs of pathological sexual perversions (paedophilias, necrophilias); presence of tracks bits are in memory of person about the circumstances of commission of crime; signs of twisting, saying nothing or constructing of information. Vision is exposed in relation to the complex of measures on the increase of prospect of deployment of possibilities of expert technology of the use of lie-detector in the process of finishing telling in criminal realizations.

Temporal Access Barriers among Rural-Residing Veterans with Multiple Chronic Conditions

Temporal Access Barriers among Rural-Residing Veterans with Multiple Chronic Conditions

Treatment of the patient with trauma of the zygomatic complex

Comminuted fracture of the zygomatic complex in the clinic of Oral and Maxillofacial Surgery from Chisinau often is fixed via osteosynthesis methods as one of the safest and successful method. Immobilization with Kirschner wires (K–wires, K–pins) are used in exceptional cases. Intraoral and temporal access for immobilization of the fractured fragments provide an aesthetic recovery of the patient with trauma of the zygomatic complex.

IMGA: Efficient In-Memory Graph Convolution Network Aggregation With Data Flow Optimizations

Aggregating features from neighbor vertices is a fundamental operation in Graph Convolution Network (GCN). However, the sparsity in graph data creates poor spatial and temporal locality, causing dynamic and irregular memory access patterns and limiting the performance of aggregation on the Von Neumann architecture. The emerging processing-in-memory (PIM) architecture is based on emerging non-volatile memory (NVM), like Spin-orbit torque Magnetic RAM (SOT-MRAM), and demonstrates promising prospects in alleviating the Von Neumann bottleneck. However, the limited memory capacity of PIM medium still incurs non-negligible data movements between PIM architecture and external memory. To solve this challenge, we propose a SOT-MRAM based in-memory computing architecture, called IMGA, for efficient in-situ graph aggregation. Specifically, we design adaptive data flow management strategies that reuse vertex data in MRAM when processing graphs of different scales and adopt edge data as the control signal source to utilize the graph’s structural information. A reordering optimization strategy leveraging hardware-software co-design principle is proposed to further reduce the costly data movement. Experimental results demonstrate that IMGA achieves an average 2523x and 21x speedup, and 1.03E+6 and 1.04E+3 energy efficiency compared with CPU and GPU, respectively.

Intraoperative angiography in neurosurgery: temporal trend, access site, and operative indication considerations from a 6-year institutional experience.

Historically, the transfemoral approach (TFA) has been the most common access site for cerebral intraoperative angiography (IOA). However, in line with trends in cardiac interventional vascular access preferences, the transradial approach (TRA) and transulnar approach (TUA) have been gaining popularity owing to favorable safety and patient satisfaction outcomes. To compare the efficacy and safety of TRA/TUA and TFA for cerebral and spinal IOA at an institutional level over a 6-year period. Between July 2016 and December 2022, 317 angiograms were included in our analysis, comprising 60 TRA, 10 TUA, 243 TFA, and 4 transpopliteal approach cases. Fluoroscopy time, contrast dose, reference air kerma, and dose-area products per target vessel catheterized were primary endpoints. Multivariate regression analyses were conducted to evaluate predictors of elevated contrast dose and radiation exposure and to assess time trends in access site selection. Contrast dose and radiation exposure metrics per vessel catheterized were not significantly different between access site groups when controlling for patient position, operative region, 3D rotational angiography use, and different operators. Access site was not a significant independent predictor of elevated radiation exposure or contrast dose. There was a significant relationship between case number and operative indication over the study period (P<0.001), with a decrease in the proportion of cases for aneurysm treatment offset by increases in total cases for the management of arteriovenous malformation, AVF, and moyamoya disease. TRA and TUA are safe and effective access site options for neurointerventional procedures that are increasingly used for IOA.

Temporal Role Access Control Model for New Power Systems Based on Trust Degree

With the continuous development of information construction in the new power system and the power information network system, users have their own role identities in the corresponding business systems, and access permissions change over time. Traditional access control permanently assigns user roles, which has made the issue of power information security increasingly prominent. This article introduces time constraints in the role-based access control of the new power system. Building on the research of GTRBAC, a trust-based time-constrained role-based access control model for the new power system is proposed. The model’s semantics, execution model, and formal verification are defined.

Formulated feeds prolong the reproductive period of a cultured echinoid

AbstractObjectiveThe production of echinoid larvae and juveniles is required in both wild‐population enhancement programs and full life‐cycle culture. Many echinoid species of commercial interest spawn only once or twice a year, however, restricting temporal access to viable broodstock. High‐energy/high‐protein formulated feeds have been used for gonad enhancement of a variety of echinoid species, but the goal of that activity has always been to produce premature gonads, which the market requires, not the production of mature gonads for breeding. The present investigation, originally established to examine gonad enhancement, took advantage of a spawning event to assess the efficacy of a formulated feed to extend the spawning period or reduce gonad recovery time after spawning in a commercially relevant echinoid, the green sea urchin Strongylocentrous droebachiensis.MethodsUrchins held in suspended sea cages were fed either a formulated, commercial, pelleted urchin diet or bull kelp Nereocystis luetkeana over 12 weeks, with survival, somatic growth, gonad quantity (wet weight, yield), and gonad quality (presence/absence of gametes) being examined over time.ResultSurvivorship after 12 weeks was high, little difference being observed between the two diets (mean ± SE: 98.2 ± 1.1% and 95.9 ± 1.9% for kelp and formulated feed, respectively). There was no significant difference in somatic growth between the two treatments, but the formulated feed led to significantly higher gonad wet weight and yield than kelp at the end of the study. When compared with kelp, the formulated feed may have led to earlier spawning and quicker gonad recovery and prevented the complete spawning of all urchins, thus extending the period of gamete availability.ConclusionFormulated feeds may have the potential to maintain reproductively active broodstock over an extended time, allowing expansion of the period in which echinoid larvae and juveniles can be produced.

Münster standard: modified Paul® implantation in a condition following Preserflo® MicroShunt implantation. Video article

The aim of this surgical technique is the modified placement of aPaul® implant (Fa. Advanced Ophthalmic Innovations, Singapur) in eyes after failure of Preserflo® MicroShunt (Fa. Santen, Osaka, Japan) implantation for the best possible adjustment of the intraocular pressure. The technique presented here is intended for patients suffering from more complex glaucomas, which were unsuccessfully previously treated with a Preserflo® Microshunt (Santen Inc.). The special feature of the Münster standard is the choice of the surgical field and the waiver of a further tunnel placement. The patients receive a Paul® implant in the same quadrant as the previously inserted Preserflo® MicroShunt implant (superior temporal). The latter is explanted after preparation of the conjunctiva and priming of the Paul® implant with aProlene 6.0suture and fixation of the plate. In order to carry out the implantation of the Paul® tube through the existing 25-gauge tunnel, the latter is dilated laterally with an iris spatula under positioning of the anterior chamber. Asurgical video, which is available online, shows the surgical technique in detail. ADVANTAGES OF THE MüNSTER STANDARD: The superior temporal surgical access promises easier handling. The fact that there is no need for anew tunnel effectively saves surgery time and is expected to reduce endothelial cell loss as only one tube remains in place in comparison to two anterior chamber tubes.

Extraction and Prediction of User Communication Behaviors From DNS Query Logs Based on Nonnegative Tensor Factorization

Owing to the critical role of the domain name system (DNS), its query log data are utilized for various network monitoring purposes. With the diversification of network services, these data have become increasingly complex, making mining useful information challenging. DNS query log data can be considered as the superposition of two types of communication patterns: groups of domains accessed simultaneously (e.g., ad servers and content delivery network (CDN) servers) and time-series access patterns based on user behavior characteristics (e.g., access trends during the night). However, previous studies have not focused on extracting both access patterns hidden in the data. This study proposes a method that extracts both patterns of accessed domains and temporal access patterns as user communication behaviors from DNS query log data and predicts future accesses based on these patterns. The proposed method first aggregates similar fully qualified domain names (FQDNs) associated with the same service. We then present temporal regularized nonnegative tensor factorization (TR-NTF) that extracts both access patterns from a third-order tensor expressing DNS query log data and enables prediction. We evaluate the proposed method using synthetic and actual data and demonstrate that it successfully extracts hidden communication patterns and achieves sufficient prediction accuracy.

Spatial and temporal access to warm spaces during the winter of 2022/2023

It is estimated that over half a million people visited one network of ‘warm rooms’ during the winter of 2022 in the UK, a figure that may rise to 2.5 million people if other networks are considered. As well as offering a means to try to limit exposure to cold temperatures and reduce household energy costs, these winter warm hubs also address wider concerns such as social isolation, loneliness and mental well-being as the cost-of-living bites. This graphic demonstrates how geospatial approaches can be used to explore access via public transport and walking to a network of warm spaces in the capital city of Cardiff, Wales. By accounting for site opening times in relation to existing bus timetables for those for whom walking may not be an option, we illustrate how such information can be included in three commonly applied access measures (floating catchment area, cumulative opportunity and shortest distance) to highlight potential spatio-temporal gaps in provision across the city.

Enabling Efficient and Privacy-Preserving Task Allocation with Temporal Access Control for Mobile Crowdsensing

The increasing proliferation of GPS-enabled mobile devices, including Unmanned Aerial Vehicles (UAVs), smartphones, and laptops, has resulted in a significant upsurge in the outsourcing of spatial data to cloud servers for storage and computation purposes, such as task allocation and location-based services. However, the reliance on untrusted cloud servers introduces the risk of privacy breaches, as these servers possess the ability to deduce and access users’ private information based on task content and query requirements. Existing privacy-preserving task-allocation schemes offer only coarse-grained and non-temporal access control, which restricts their applicability in scenarios involving multiple users and time-series data, such as trajectory and time-related routes. To overcome these challenges, this paper proposes an Efficient and Privacy-Preserving Task Allocation with Temporal Access Control (EPTA-T) scheme for mobile crowdsensing. By leveraging the techniques of Gray code and randomizable matrix multiplication, EPTA-T achieves efficient and privacy-preserving task allocation in mobile crowdsensing. Specifically, EPTA-T supports fine-grained and temporal access control through the utilization of an attribute-based access tree and function integration. The formal security analysis demonstrated that EPTA-T effectively guarantees data privacy and query privacy throughout the task allocation process. Extensive experiments conducted using a real-world dataset indicated that the EPTA-T scheme surpassed the performance of the state-of-the-art scheme.

Percutaneous Superficial Temporal Artery Access Facilitating Carotid Artery Stenting Performed From Distal Radial Artery.

The purpose of the study is to describe carotid artery stenting (CAS) via distal transradial access (dTRA) facilitated by additional superficial temporal artery (STA) access, in a patient with complex aortic arch vessel anatomy. A 72-year-old woman with a prior history of complex cervical surgery and radiotherapy due to laryngeal malignancy, presented with a symptomatic 90% stenosis of the left internal carotid artery (ICA). Due to high cervical lesion, the patient was rejected from carotid endarterectomy. Angiography demonstrated 90% stenosis of the left ICA and a type III aortic arch. After failure of left common carotid artery (CCA) cannulation with appropriate catheter support via dTRA and transfemoral approaches, CAS was attempted a second time. After percutaneous ultrasound guided access to right dTRA and left STA, a 0.035 inch guidewire introduced to the left CCA from the contralateral dTRA was snared and externalized via left STA to improve wire support for guiding advancement. Thereafter, the left ICA lesion was successfully stented with a 7×30 mm self-expanding stent via right dTRA. All vessels involved were patent at 6-month follow-up. The STA may be a promising adjunctive access site to increase transradial catheter support for CAS or neurointerventional procedures in the anterior circulation. Transradial cerebrovascular interventions have been gaining popularity, however, unstable catheter access to distal cerebrovascular structures limits its widespread use. Guidewire externalization technique via additional STA access may improve transradial catheter stabilty and increase procedural success with possibly low access stie complication rate.

Finite Materialisability of Datalog Programs with Metric Temporal Operators

DatalogMTL is an extension of Datalog with metric temporal operators that has recently found applications in stream reasoning and temporal ontology-based data access. In contrast to plain Datalog, where materialisation (a.k.a. forward chaining) naturally terminates in finitely many steps, reaching a fixpoint in DatalogMTL may require infinitely many rounds of rule applications. As a result, existing reasoning systems resort to other approaches, such as constructing large Büchi automata, whose implementations turn out to be highly inefficient in practice. In this paper, we propose and study finitely materialisable DatalogMTL programs, for which forward chaining reasoning is guaranteed to terminate. We consider a data-dependent notion of finite materialisability of a program, where termination is guaranteed for a given dataset, as well as a data-independent notion, where termination is guaranteed regardless of the dataset. We show that, for bounded programs (a natural DatalogMTL fragment for which reasoning is as hard as in the full language), checking data-dependent finite materialisability is ExpSpace-complete in combined complexity and PSpace-complete in data complexity; furthermore, we propose a practical materialisation-based decision procedure that works in doubly exponential time. We show that checking data-independent finite materialisability for bounded progams is computationally easier, namely ExpTime-complete; moreover, we propose sufficient conditions for data-indenpendent finite materialisability that can be efficiently checked. We provide also the complexity landscape of fact entailment for different classes of finitely materialisable programs; surprisingly, we could identify a large class of finitely materialisable programs, called MTL-acyclic programs, for which fact entailment has exactly the same data and combined complexity as in plain Datalog, which makes this fragment especially well suited for big-scale applications.

You are being watched! Using anthropomorphism to curb customer misbehavior in access-based consumption

Due to the nature of access-based services (i.e., temporal access to a good, no ownership transfer, and no supervision by service personnel), customer misbehavior directed at accessed products is very pervasive, which causes losses to service providers and results in detrimental contagious effects. However, potential strategies that can be used to curb customer misbehavior have not been studied sufficiently. Extending existing theory of customer misbehavior, this research focuses on anthropomorphism as a strategy that may reduce customers’ intention to engage in misbehavior in access-based consumption. Three studies confirm the effectiveness of anthropomorphism in inhibiting customer misbehavior and suggest that this basic effect is mediated by a sense of being watched. Moreover, they indicate that the effects are attenuated for customers with low public self-consciousness. The primary managerial implication of this study is that marketers may suppress customer misbehavior towards shared products by using first-person perspective language or imbuing them with humanlike characteristics such as human voice and human names.

Gillies temporal acess surgical technique for closed zygomatic arch reduction

Fracture of the zygomatic arch is one of the most common facial bone fractures. By means of minimally invasive surgeries it is intended to preserve anatomical structures to the maximum, without extensive incisions or dissections, providing the best functional results with less operative trauma, the Gillies approach being widely used in this regard. Objective: To report a clinical case of a patient with a zygomatic arch fracture, in which a reduction was used through the temporal access of Gillies, as well as, guide the surgeon in treatment planning. Case report: Patient AFL, 62 years old, male, was referred to the Maxillofacial Surgery and Traumatology Service of the Restauração Hospital (Recife / PE), with a history of falling from a height, evolving with fracture of the left zygomatic arch, treated by closed reduction through the temporal access of Gillies. Results: In this way, the Gillies approach proved to be a rather traumatic technique, effective in our case, restoring esthetics and function with minimally invasive surgery. Conclusion: It is effective in our case, restoring aesthetics and function with minimally invasive surgery.

Appreciating the Resilience and Stability Found in Heterogeneity: A South African Perspective on Urban Household Food Security

Urban food security has long been viewed as secondary to rural food security in Africa, and with the migration of large numbers of individuals from rural to urban settings, it has become crucial to place more focus on urban food security. More so, in Southern African peri-urban areas, where high unemployment rates amongst the youth exist. Often, the interventions toward reducing food insecurity in urban settings are taken from those previously designed for application in the rural context. In this study, we aimed to measure the status of food security and identify the factors driving and constraining household food security amongst peri-urban households in Tembisa, South Africa, with the purpose of gaining an in depth understanding of the drivers of urban food insecurity within peri-urban communities. In order to accomplish this, FANTA's Household Food Insecurity Access Scale (HFIAS), which measures levels of food security and the Household Dietary Diversity Scale (HDDS), which measures the level of nutritional intake of households was applied. Food prices of the formal and informal markets were monitored over a period of 6 months. A significant decline in household food access over a 4-year period (2013–2016) was observed in addition to low-quality diets. The most commonly used coping methods during periods of low income included borrowing either money or food from friends and neighbors, this was done in conjunction with various other coping strategies. Much of the declining food access was attributed to the inflation of food prices, the lack of employment, lack of formal employment and a high number of household members to breadwinner ratios. High reliance solely on financial capital remains a limitation to the livelihood of urban households. Informal markets are an imperative driver of food security in these peri-urban communities and provide improved food price stability, temporal, and geographical food access through less volatile food pricing, compared to formal markets. Furthermore, government initiatives such as social grants and school feeding schemes have proven to be critical in reducing the vulnerability to food insecurity of most households.