bluuebunny/crossref_metadata_2025_split huggingface dataset:
Landmark-Based Plan Distance Measures for Diverse Planning
Authors: Bryce Daniel 
Published: September 2022

Prior approaches to generating diverse plans in domain-independent planning seek out variations on plan structure such as actions or causal links used, or states entered. Measuring such syntactic differences between plans can be misleading because syntactically different plans can be semantically identical. We develop a landmark-based plan distance measure that captures semantic differences between plans.The landmark-based distance measure focuses on the disjunctive landmarks satisfied by each plan. We develop a simple algorithm for finding diverse plans that is based upon the LAMA planner. We illustrate that, in comparison with plan distance measures, landmark-based plan distance is not as susceptible to including irrelevant or redundant actions in plans to increase plan distance. Through extensive empirical evaluation, we find that high landmark distance between plans implies high action set distance, but not vice versa. Landmark-based plan distance overcomes some of the weaknesses of syntactic plan distance measures and can be used to find plan sets that are both landmark diverse and action set diverse.
Improved Features for Runtime Prediction of Domain-Independent Planners
Authors: Fawcett Chris , Vallati Mauro , Hutter Frank , Hoffmann Jörg , Hoos Holger , Leyton-Brown Kevin 
Published: September 2022

State-of-the-art planners often exhibit substantial runtime variation, making it useful to be able to efficiently predict how long a given planner will take to run on a given instance. In other areas of AI, such needs are met by building so-called empirical performance models (EPMs), statistical models derived from sets of problem instances and performance observations. Historically, such models have been less accurate for predicting the running times of planners. A key hurdle has been a relative weakness in instance features for characterizing instances: mappings from problem instances to real numbers that serve as the starting point for learning an EPM. We propose a new, extensive set of instance features for planning, and investigate its effectiveness across a range of model families. We built EPMs for various prominent planning systems on several thousand benchmark problems from the planning literature and from IPC benchmark sets, and conclude that our models predict runtime much more accurately than the previous state of the art. We also study the relative importance of these features.
Contingent versus Deterministic Plans in Multi-Modal Journey Planning
Authors: Botea Adi , Braghin Stefano 
Published: September 2022

Deterministic planning is the de facto standard in deployed multi-modal journey planning systems. However, in reality, transportation networks feature many types of uncertainty, including variations of the arrival and the departure times of public transport vehicles. Under uncertainty, deterministic plans could result in missed connections, leading to an arrival time much worse than originally planned. We contribute an empirical study using transportation network data from three European cities. We show that, in the presence of uncertainty, contingent plans can often provide significant savings in terms of travel time. We view our results as important because they advocate adopting uncertainty-aware multi-modal journey plans, shifting from the current practice based on using deterministic planning.
Aortic dissection in childbirth as a cause of maternal mortality
Authors: Babich T. Yu. , Sulima A. N. , Voronaya V. V. , Kalinina N. A. 
Published: September 2022

Introduction. Aortic dissection (AD) is a rare and extremely dangerous pathology in obstetrics and gynecology. AD frequency in pregnant women comprises only 14.5 cases per 1 million subjects and leads to maternal death in 30 % cases. AD is characterized by the difficulty in performing differential diagnostics.Aim: to describe a clinical case demonstrating the difficulties in timely AD diagnostics and treatment during delivery.Materials and Methods. A rare clinical case of asymptomatic AD resulting in death of the woman in labor is presented after assessing the patient medical history, the conclusion of the pathoanatomical examination and the protocol of the mortality review.Results. The presented AD clinical case in labor with subtle clinical symptoms demonstrate the extreme difficulty of timely diagnostics of this pathology for practitioners, which inevitably resulted in maternal mortality.Conclusion. AD during pregnancy and labor is the condition with extremely rare and difficult diagnostics, high probability of maternal and perinatal mortality, which should be known and remembered by obstetrician-gynecologists.
Assessing sexual dysfunction in patients with external genital endometriosis
Authors: Begovich E. , Solopova A. G. , Khlopkova S. V. , Son E. A. , Ungiadze J. Yu. , Idrisova L. E. 
Published: September 2022

Introduction. External genital endometriosis (EGE) is a chronic, relapsing disease that affects various aspects of sexual function, the quality of sexual and interpersonal relationships, physical and psycho-emotional health and leads to social maladjustment and anxiety-depressive disorders, resulting in progressively decreased quality of life (QoL).Aim: to analyze an impact of sexual disorders on QoL of women with painful and painless EGEs.Materials and Methods. A prospective comparative randomized interventional study involved 160 patients (110 and 50 women with painful and painless EGE, respectively) of reproductive age, with laparoscopically and morphologically verified diagnosis according to the revised American Fertility Society scoring system (R-AFS, 1996). Pain syndrome and sexual dysfunction were assessed using specialized questionnaires: visual analogue scale (VAS), PainDETECT, and Female Sexual Function Index (FSFI). After surgical treatment, 8 patients refused to participate in the study (6 with painful EGE and 2 with painless EGE). Thus, only 152 women passed all stages of the study. The patients were divided into 4 groups depending on the presence and/or absence of pain syndrome and the tactics of the rehabilitation period ("active" or "passive"): group IA consisted of 49 (47.1 %) women with pain and "active" rehabilitation; group IБ – 55 (52.9 %) women with pain syndrome and "passive" rehabilitation tactics; group IIA – 23 (47.9 %) patients without pain syndrome with "active" rehabilitation; group IIБ – 25 (52.1 %) patients without pain syndrome with "passive" rehabilitation tactics.Results. Women with painful vs. painless EGE were found to have a more severe course of the disease and a markedly decreased quality of sexual life. It was observed that patients with "active" rehabilitation tactics (groups IA and IIA) had intensity of the pain syndrome and the neuropathic pain component significantly decreased, improved parameters of the quality of sexual life, sexual desire and sexual excitability compared to patients with "passive" rehabilitation tactics applied with the measures within the framework of the National Clinical Guidelines (groups IБ and IIБ).Conclusion. A significantly decreased quality of sexual life of EGE patients indicates a need for assessing and correcting sexual disorders as well as introducing early onset of rehabilitation measures by using a multidisciplinary approach.
The Mechanisms of Tsunami Amplification and the Earthquake Source of the 2021M 7 Acapulco, Mexico, Earthquake
Authors: Melgar Diego , Ruiz-Angulo Angel , Crowell Brendan W. , Fielding Eric J. , Solano-Hernandez Ericka A. 
Published: September 2022

ABSTRACTWe present a slip model for the 2021 M 7 Acapulco, Mexico, earthquake produced by inversion of strong motion, Global Navigation Satellite Systems, tide gauge, and Interferometric Synthetic Aperture Radar data. The earthquake occurs within the Guerrero gap, identified as a region of concern for its seismogenic potential and paucity of large events. We find that rupture was compact, constrained to depths between 10 and 20 km, and consistent of two main slip patches. The slip model leaves a broad swath of the megathrust unbroken, and, whether the event signals a reactivation of large earthquakes in the region remains unknown. We find that tide gauge recordings inside Acapulco Bay for the M 7 1962 earthquake and the 2021 event are strikingly similar, thus we interpret this as weak evidence that 2021 is a repeat of 1962. We also produce a high-resolution hydrodynamic model of the resulting tsunami using the slip model as initial condition and place special emphasis in understanding the long duration (∼17 hr) of waves inside the bay. We find that simple bay resonance alone does not account for the features of the event. Rather it is a complex interaction with shelf modes and edge waves that continuously re-excite the bay resonance that leads to the protracted tsunami disturbances. Furthermore, we find that significant currents in excess of 1 m/s occur in localized portions of the bay even when wave amplitudes remain small.
Virtual self-image as a coping behavior complex strategy of an Internet user
Authors:   Pedagogical University named after Fevzi Yakubov, Rasina Evelina Osmanovna 
Published: September 2022

The virtual self-image acts not only as a significant element of interpersonal interaction. It also plays a crucial role in the self-determination and self-categorization of the user in his environment. The virtual self-image performs the most important function of a filter and repeater of external influences, including negative ones. The purpose of the article is to identify the relationship between the choice of coping strategies of Internet users and the components of their virtual images. Methodology and methods: the Lazarus-Folkman Coping test and the author's method “Content and structural components of the virtual image of the Internet user's self-image”. Statistical analysis of the data obtained during the study was carried out using the SPSS 26.0 software and the Pearson correlation coefficient. The study involved 80 (n = 80) students of Yakubov Crimean Engineering-Pedagogical University (age from 17 to 26 years, 71% women, 29% men, M = 21.06; SD = 2.54) Results: the coping strategies chosen by the user are reflected in the content and structural components of the virtual self-image. The prevailing coping strategies of the user are reflected in the content and structural components of the virtual self-image. The confrontational coping strategy has a significant connection with the behavioral (remp = .249) and communicative (remp = .240), reflexive (remp = -.353) components of the virtual self -image; self-control – with visual (remp = .332), behavioral (remp = .573), auditory (remp = .345), and reflexive (remp = .491); social search – with visual (remp = .336), behavioral (remp = .663), rating (remp = .250), auditory (remp = .331) and reflexive (remp = .288); acceptance of responsibility – with behavioral (remp = .444), communicative (remp = .385), auditory (remp = .378) and reflexive (remp = .281); flight-avoidance strategy – with communicative (remp = .482), rating (remp = .241) and auditory (remp = .433); problem solving planning – with behavioral (remp = .294); positive overestimation – with visual (remp = .273), behavioral (remp = .250), auditory (remp = .274). Conclusion: The user constructs their self-presentation in the virtual space based on his preferred strategies of behavior in difficult situations, thereby building long-term protection against threats in real and virtual space.
Expanded IME with New Riser Gas Handling Operation Region
Authors: Gabaldon Oscar , Gonzalez Luis Romar A , Sousa Pedro , Wei Chen , Chen Yuanhang 
Published: September 2022

Abstract
The Influx Management Envelope (IME) is a proven tool to assess management of influxes taken during MPD operations. Currently, IME establishes limits of manageable influx volumes for given kick intensity/surface back-pressures, to hand over from primary to secondary barrier (i.e., well-control equipment).
Opportunities exist for advanced, safe operations when influx circulation up the riser is a concern but dealing with the influx in the hole may introduce additional risks, such as imposing choke line friction pressures (CLFP), particularly in ultra-deepwater operations. A closed riser system allows for safe handling of influxes using the riser/MPD equipment, while isolating the wellbore with the subsea BOP and eliminating risks of fracturing the well or taking additional influxes.
We propose expanding the current regions of the IME with a zone in which the decision can be made to circulate the influx to the riser, then isolate the well to handle the influx in the riser with MPD equipment, using the opportunities and methods being developed for industry use. Potential risks to the integrity of the system are analyzed and assessed versus reasonable scenarios.
This work is consistent with the current work on providing guidelines for influx management with MPD (IM Annex to API-RP92S, under balloting process by API), and for managing gas in riser with closed riser systems (Riser Gas Handling (RGH) Guidelines, by the IADC UBO&MPD Committee).
Real-Time Downhole Pressure Environment Determination During Managed Pressure Drilling, Tripping, and Cementing Operations to Improve Well Construction Safety Standards in Deepwater Gulf of Mexico
Authors: Tuckwell Nathan , Arnone Maurizio 
Published: September 2022

Abstract
After 24 deepwater wells and almost 300,000 ft drilled with Managed Pressure Drilling (MPD) in the Gulf of Mexico (GOM) for the Operator Company during the last four years using a specific MPD service- provider technology, our experiences ascertaining operating windows in real-time are described in this paper. Including the first-ever Dynamic Pore Pressure Test (DPPT), inducing a planned influx and circulating it through the riser and MPD system, along with several Dynamic Formation Integrity Test or Dynamic Leak Off Test (DFIT/DLOT) performed at the shoe and TD to safely deliver the well, balancing strategy, and casing running/cementing efficiently. The results of these dynamic tests enabled the operator to make decisions in real-time with the primary goal of keeping safety as the priority during the campaign.
The application of DPPT and DFIT/DLOT during the exploration well construction campaign in the deepwater GOM as part of the deliverables obtained from MPD to ascertain actual formation pressure limits in real-time has produced significant improvements in the safety standards for drilling specific hole sections with narrow pressure windows. Improvements were also seen in verifying accurate margins to trip with conventional well-balancing methods or using MPD for tripping out/in and running casing and cementing the sections using managed pressure procedures as an alternative to avoid a breach of the obtained margins. DPPT and DFIT/DLOT, in theory, and practice, are some of the essential benefits delivered by managed pressure technology. Both could radically influence verifying safety standards and margins during the well construction phase.
This technical paper describes the justifications for performing a planned or required DPPT and DFIT/DLOT in several deepwater exploration wells that encountered challenges while crossing narrow operating windows, jeopardizing the well objectives and safety requirements. Also, discussing the US GOM regulatory requirements for approval, procedures, training, execution process, and final results impacted positive results when ascertaining the real pressure margins downhole and being available to drill, trip, and cement successfully using MPD technology.
Kick Tolerance - A Risk-Based Strategy to Enhance Well Control in Narrow Margin Wells
Authors: Graham Robert , Cadd Michael , Theresia Angie , Polkinghorne Jason 
Published: September 2022

Abstract
Determination of appropriate kick tolerance to safely drill a narrow margin well can be challenging. A conventional approach using conservative assumptions and a single bubble model can lead to premature deployment of contingency casing strings or render some scenarios un-drillable. Uncertainties in pressures and depths in HPHT wells make a robust design that can handle all possible scenarios especially challenging.
This paper will examine a strategy for challenging these assumptions and presents a robust methodology for safely managing ultra-low kick tolerance and large subsurface uncertainties by taking advantage of MPD influx management techniques and multi-phase modelling.
The key elements defining the well control envelope include formation strength, resolution of influx detection, realistic shut-in times, safety margin and method of influx control (circulating response with MPD vs non-circulating response with BOP).
This kick tolerance strategy will be implemented for a lengthy HPHT campaign in the UK North Sea. The strategy is designed to enable drilling the reservoir sections to TD and achieving all well objectives where applying a more conventional approach may require contingency casing to be deployed and key well evaluation objectives to be regretted. In addition, the well control strategy will take advantage of MPD influx management to control potential influxes within very small volumes while continuing to circulate.
Pressurized Mud Cap Drilling Used to Drill and Complete Carbonate Gas Reservoir with Poor Injectivity and Severe Dynamic Losses Offshore Malaysia
Authors: McCluskey Timothy , Ho Ching Shearn , Tan Chai Yong , Timbancaya Eric , Annas Omar Mohammad , Mohd Khaidzir Khairil Azam 
Published: September 2022

Abstract
This paper describes how PMCD with an overbalanced drilling mud, instead of Light Annular Mud, was used to successfully drill and complete a well in gas bearing carbonates offshore Malaysia. This unconventional approach was adopted after encountering poor formation injectivity and severe dynamic losses in the 8-1/2″ reservoir section.
Dynamic losses of 700 bbl/hr were encountered after drilling into the carbonate formation, but the subsequent injectivity test surface pressure prevented the well being converted to PMCD with LAM. LCM pills were spotted and the mud weight was cut by 0.2 ppg but severe dynamic losses continued. An injectivity test was performed with seawater and the surface pressure stabilized around 500 psi. Drilling resumed with overbalanced drilling mud in the annulus, which was top filled during connections to keep the hole full and to monitor the annulus with a nominal surface pressure, while seawater was pumped down the string.
After reaching TD, the drilling BHA was retrieved to surface and the 7″ lower completion was run in hole while the well continued to take around 50 bbl/hr static losses. When the lower completion entered the open hole, PMCD was activated to run in and set the liner hanger.
This method of unconventional PMCD may be implemented to successfully drill through carbonates with poor injectivity and severe dynamic losses, thereby improving the safety and efficiency of the drilling operations compared to conventional or floating mud cap drilling.
Epidemiol ogical Study of Snakebit e Cas es Admitted in Godey Hospital, S hebelle Zo ne, Eastern Ethiop ia, June, 2016
Authors: Mohammed Yusuf , Nafis Farah , Niguse Ayale w , Kaba Zalalem 
Published: September 2022

Abstract
Background: Snake-bite included in the WHO’s (World Health Organization) list of neglected tropical diseases. The load of snakebite in Ethiopia is unknown, perhaps because of underreporting. No study done on existing data at Godey hospital. Therefore, the aim of current study was, to characterize the distribution of victims by time, place, and person, to know the extent of the problem and coming with recommendation.
Methods and Materials: We conducted a retrospective descriptive cross-sectional study at Godey hospital from May 15-22/2016. We included all cases visited emergency wards from September 2014 to May 2016. We entered, cleaned, and analyzed collected data by using Microsoft Excel 2007. Furthermore, we secured permission for data collection from hospitals officials.
Result and Conclusion: Starting from September 2014 to May 2016, 45 snakebite victims were reported. Majority 26(57.8%) of were those age group ranging from 1 to 15, while least (6.7%) age group was those from 31 to 45. About 91.1% of cases were reported from rural kebeles of Godey woreda. The bites were reported in all months of the years except January, and a peak report was in May. Low extremity accounts to majority (65%) of site of bites. This was snakebite among patients seen at Godey hospital in which males affected more than females, and maximum snakebite incidence viewed in rural concerns. Registration of patients’ improvement, further region wide study to document the most common venomous snakes’ species, incidence, morbidity, and mortality of snakebites in Ethiopian Somali Region, are among recommendation.
Percutaneous and Arthroscopically Assisted Osteosynthesis for Calcaneal Fractures with Displacement of Different Calcaneal Talar Facet: A Retrospective Study
Authors: Xia Zhang-rong , Liu Xin-yue , Zhang Lei , Li Bing-kun , Tang Xiao-gao , Chen Jun-yao , Xiong Ji-xiang , Zhou Xin 
Published: September 2022

Abstract
Background: Percutaneous and Arthroscopically Assisted Osteosynthesis (PAAO) offers a successful treatment option for displaced intra-articular calcaneal fractures (DIACFs) due to its visibility and minimal invasiveness. However, the fixation method of PAAO is reported as unstable. It can result in postoperative collapse and unsatisfactory reduction. As DIACFs are associated with displacement of the calcaneal talar facet (CTF), the study aimed to investigate whether there is a difference in the efficacy of PAAO in the treatment of DIACFs with different CTF. It can provide guidance and help for the clinic.
Methods: A total of 107 cases treated with PAAO were included in this study, and they were classified by CTF. Preoperative radiological parameters were collected, including the Bohler angle and calcaneal height, as well as patient-reported results, including the American Orthopedic Foot and Ankle Society (AOFAS) scores and Visual Analog Scale (VAS) scores. Results after surgery were analyzed and compared between different types of CTF.
Results: Based on the CTF, DIACFs were divided into five groups ( 37 Type I, 25 Type II, 18 Type III, 16 Type IV, and 11 Type V). At the last follow-up, the Bohler angle of Type V (32.26 degrees) was larger than that of Type I, II, III, and IV (27.77, 27.99, 25.46 and 27.76 degrees), and calcaneal height of Type III (41.65 mm) was lower than that of Type V (48.22 mm)(all P < 0.05). There was no significant difference in AOFAS scores of five types (all P > 0.05). VAS scores were significantly higher in Type III (3.0) than Type I (2.1) and Type V (1.8)(all P < 0.05).
Conclusions: PAAO showed good imaging and clinical results in DIACFs in short-term follow-up and the treatment effect varied from different types of CTF. Therefore, when it comes to DIACFs of CTF V, PAAO can be given priority, but for DIACFs of CTF III, it should be carefully considered whether to use this method.